diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 00000000..0f57a84a --- /dev/null +++ b/.editorconfig @@ -0,0 +1,39 @@ +# editorconfig.org + +root = true + +[*] +# Unix style files +end_of_line = lf +charset = utf-8 +trim_trailing_whitespace = true +insert_final_newline = true + +[Makefile,Makefile.*] +indent_style = tab +indent_size = 4 + +[*.cmd] +indent_style = space +indent_size = 2 +end_of_line = crlf + +[*.{h,cpp}] +indent_style = tab +indent_size = 4 + +[*.rc] +indent_style = space +indent_size = 4 + +[*.{md,markdown}] +indent_style = space +indent_size = 2 +trim_trailing_whitespace = false + +[*.yml] +indent_style = space +indent_size = 2 + +[*.patch] +trim_trailing_whitespace = false diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 00000000..488400a3 --- /dev/null +++ b/.gitattributes @@ -0,0 +1 @@ +/build/build_mingw.cmd eol=crlf \ No newline at end of file diff --git a/.github/workflows/build-deb.yml b/.github/workflows/build-deb.yml new file mode 100644 index 00000000..597dc211 --- /dev/null +++ b/.github/workflows/build-deb.yml @@ -0,0 +1,61 @@ +name: Build Debian packages + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build-deb.yml + - contrib/** + - daemon/** + - debian/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Makefile + - Makefile.linux + tags: + - '*' + pull_request: + branches: + - '*' + +jobs: + build: + name: ${{ matrix.dist }} + runs-on: ubuntu-latest + + strategy: + fail-fast: false + matrix: + dist: ['buster', 'bullseye', 'bookworm'] + + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Commit Hash + id: commit + uses: prompt/actions-commit-hash@v3.0.0 + + - name: Build package + uses: jtdor/build-deb-action@v1 + with: + docker-image: debian:${{ matrix.dist }}-slim + buildpackage-opts: --build=binary --no-sign + before-build-hook: debchange --controlmaint --local "+${{ steps.commit.outputs.short }}~${{ matrix.dist }}" -b --distribution ${{ matrix.dist }} "CI build" + extra-build-deps: devscripts git + + - name: Upload package + uses: actions/upload-artifact@v4 + with: + name: i2pd_${{ matrix.dist }} + path: debian/artifacts/i2pd_*.deb + + - name: Upload debugging symbols + uses: actions/upload-artifact@v4 + with: + name: i2pd-dbgsym_${{ matrix.dist }} + path: debian/artifacts/i2pd-dbgsym_*.deb diff --git a/.github/workflows/build-freebsd.yml b/.github/workflows/build-freebsd.yml new file mode 100644 index 00000000..a4a7566a --- /dev/null +++ b/.github/workflows/build-freebsd.yml @@ -0,0 +1,50 @@ +name: Build on FreeBSD + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build-freebsd.yml + - build/CMakeLists.txt + - build/cmake_modules/** + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Makefile + - Makefile.bsd + tags: + - '*' + pull_request: + branches: + - '*' + +jobs: + build: + runs-on: ubuntu-latest + name: with UPnP + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Test in FreeBSD + id: test + uses: vmactions/freebsd-vm@v1 + with: + usesh: true + mem: 2048 + sync: rsync + copyback: true + prepare: pkg install -y devel/cmake devel/gmake devel/boost-libs security/openssl net/miniupnpc + run: | + cd build + cmake -DWITH_UPNP=ON -DCMAKE_BUILD_TYPE=Release . + gmake -j2 + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: i2pd-freebsd + path: build/i2pd diff --git a/.github/workflows/build-osx.yml b/.github/workflows/build-osx.yml new file mode 100644 index 00000000..31f0b90d --- /dev/null +++ b/.github/workflows/build-osx.yml @@ -0,0 +1,45 @@ +name: Build on OSX + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build-osx.yml + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Makefile + - Makefile.homebrew + tags: + - '*' + pull_request: + branches: + - '*' + +jobs: + build: + name: With USE_UPNP=${{ matrix.with_upnp }} + runs-on: macOS-latest + + strategy: + fail-fast: true + matrix: + with_upnp: ['yes', 'no'] + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Install required formulae + run: | + find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete + brew update + brew install boost miniupnpc openssl@1.1 + + - name: List installed formulae + run: brew list + + - name: Build application + run: make HOMEBREW=1 USE_UPNP=${{ matrix.with_upnp }} PREFIX=$GITHUB_WORKSPACE/output -j3 diff --git a/.github/workflows/build-windows-msvc.yml-disabled b/.github/workflows/build-windows-msvc.yml-disabled new file mode 100644 index 00000000..922ebd0d --- /dev/null +++ b/.github/workflows/build-windows-msvc.yml-disabled @@ -0,0 +1,80 @@ +name: Build on Windows with MSVC + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build-windows-msvc.yml + - build/CMakeLists.txt + - build/cmake_modules/** + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Win32/** + tags: + - '*' + pull_request: + branches: + - '*' + +jobs: + build: + name: Build + runs-on: windows-latest + env: + boost_path: ${{ github.workspace }}\boost_1_83_0 + openssl_path: ${{ github.workspace }}\openssl_3_2_1 + + strategy: + fail-fast: false + + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Build and install zlib + run: | + powershell -Command "(Invoke-WebRequest -Uri https://raw.githubusercontent.com/r4sas/zlib.install/master/install.bat -OutFile install_zlib.bat)" + powershell -Command "(Get-Content install_zlib.bat) | Set-Content install_zlib.bat" # fixing line endings + set BUILD_TYPE=Debug + ./install_zlib.bat + set BUILD_TYPE=Release + ./install_zlib.bat + del install_zlib.bat + + - name: Install Boost + run: | + powershell -Command "(Start-BitsTransfer -Source https://sourceforge.net/projects/boost/files/boost-binaries/1.83.0/boost_1_83_0-msvc-14.3-64.exe/download -Destination boost_1_83_0-msvc-14.3-64.exe)" + ./boost_1_83_0-msvc-14.3-64.exe /DIR="${{env.boost_path}}" /VERYSILENT /SUPPRESSMSGBOXES /SP- + + - name: Install OpenSSL + run: | + powershell -Command "(Start-BitsTransfer -Source https://slproweb.com/download/Win64OpenSSL-3_2_1.exe -Destination Win64OpenSSL-3_2_1.exe)" + ./Win64OpenSSL-3_2_1.exe /DIR="${{env.openssl_path}}" /TASKS="copytobin" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- + + - name: Make copy of the OpenSSL libraries for CMake + run: | + dir ${{ github.workspace }} + dir ${{env.openssl_path}}\lib\VC + dir ${{env.openssl_path}}\lib\VC\x64\ + dir ${{env.openssl_path}}\lib\VC\x64\MTd\ + xcopy /s /y "${{env.openssl_path}}\lib\VC\x64\MTd" "${{env.openssl_path}}\lib" + + - name: Configure + working-directory: build + run: cmake -DBoost_ROOT="${{env.boost_path}}" -DOPENSSL_ROOT_DIR="${{env.openssl_path}}" -DWITH_STATIC=ON . + + - name: Build + working-directory: build + run: cmake --build . --config Debug -- -m + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: i2pd-msvc + path: build/Debug/i2pd.* + diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml new file mode 100644 index 00000000..6f10e62b --- /dev/null +++ b/.github/workflows/build-windows.yml @@ -0,0 +1,250 @@ +name: Build on Windows + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build-windows.yml + - build/CMakeLists.txt + - build/cmake_modules/** + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Win32/** + - Makefile + - Makefile.mingw + tags: + - '*' + pull_request: + branches: + - '*' + +defaults: + run: + shell: msys2 {0} + +jobs: + build: + name: ${{ matrix.arch }} + runs-on: windows-latest + + strategy: + fail-fast: false + matrix: + include: [ + { msystem: UCRT64, arch: ucrt-x86_64, arch_short: x64-ucrt, compiler: gcc }, + { msystem: CLANG64, arch: clang-x86_64, arch_short: x64-clang, compiler: clang }, + { msystem: MINGW64, arch: x86_64, arch_short: x64, compiler: gcc }, + { msystem: MINGW32, arch: i686, arch_short: x86, compiler: gcc } + ] + + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Setup MSYS2 + uses: msys2/setup-msys2@v2 + with: + msystem: ${{ matrix.msystem }} + install: base-devel git mingw-w64-${{ matrix.arch }}-${{ matrix.compiler }} mingw-w64-${{ matrix.arch }}-boost mingw-w64-${{ matrix.arch }}-openssl mingw-w64-${{ matrix.arch }}-miniupnpc + update: true + + - name: Install additional clang packages + if: ${{ matrix.msystem == 'CLANG64' }} + run: pacman --noconfirm -S mingw-w64-${{ matrix.arch }}-gcc-compat + + - name: Build application + run: | + mkdir -p obj/Win32 obj/libi2pd obj/libi2pd_client obj/daemon + make USE_UPNP=yes DEBUG=no USE_GIT_VERSION=yes -j3 + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: i2pd-${{ matrix.arch_short }}.exe + path: i2pd.exe + + build-cmake: + name: CMake ${{ matrix.arch }} + runs-on: windows-latest + + strategy: + fail-fast: false + matrix: + include: [ + { msystem: UCRT64, arch: ucrt-x86_64, arch_short: x64-ucrt, compiler: gcc }, + { msystem: CLANG64, arch: clang-x86_64, arch_short: x64-clang, compiler: clang }, + { msystem: MINGW64, arch: x86_64, arch_short: x64, compiler: gcc }, + { msystem: MINGW32, arch: i686, arch_short: x86, compiler: gcc } + ] + + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Setup MSYS2 + uses: msys2/setup-msys2@v2 + with: + msystem: ${{ matrix.msystem }} + install: base-devel git mingw-w64-${{ matrix.arch }}-cmake mingw-w64-${{ matrix.arch }}-ninja mingw-w64-${{ matrix.arch }}-${{ matrix.compiler }} mingw-w64-${{ matrix.arch }}-boost mingw-w64-${{ matrix.arch }}-openssl mingw-w64-${{ matrix.arch }}-miniupnpc + update: true + + - name: Build application + run: | + cd build + cmake -DWITH_GIT_VERSION=ON -DWITH_STATIC=ON -DWITH_UPNP=ON -DCMAKE_BUILD_TYPE=Release . + cmake --build . -- -j3 + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: i2pd-cmake-${{ matrix.arch_short }}.exe + path: build/i2pd.exe + + build-xp: + name: XP + runs-on: windows-latest + + strategy: + fail-fast: false + + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + fetch-depth: 0 + + - name: Setup MSYS2 + uses: msys2/setup-msys2@v2 + with: + msystem: MINGW32 + install: base-devel git mingw-w64-i686-gcc mingw-w64-i686-boost mingw-w64-i686-openssl mingw-w64-i686-miniupnpc + cache: true + update: true + + - name: Clone MinGW packages repository and revert boost to 1.85.0 + run: | + git clone https://github.com/msys2/MINGW-packages + cd MINGW-packages + git checkout 4cbb366edf2f268ac3146174b40ce38604646fc5 mingw-w64-boost + cd mingw-w64-boost + sed -i 's/boostorg.jfrog.io\/artifactory\/main/archives.boost.io/' PKGBUILD + + # headers + - name: Get headers package version + id: version-headers + run: | + echo "version=$(pacman -Si mingw-w64-i686-headers-git | grep -Po '^Version\s*: \K.+')" >> $GITHUB_OUTPUT + - name: Cache headers package + uses: actions/cache@v4 + id: cache-headers + with: + path: MINGW-packages/mingw-w64-headers-git/*.zst + key: winxp-headers-${{ steps.version-headers.outputs.version }} + - name: Build WinXP-capable headers package + if: steps.cache-headers.outputs.cache-hit != 'true' + run: | + cd MINGW-packages/mingw-w64-headers-git + sed -i 's/0x601/0x501/' PKGBUILD + MINGW_ARCH=mingw32 makepkg-mingw -sCLf --noconfirm --nocheck + - name: Install headers package + run: pacman --noconfirm -U MINGW-packages/mingw-w64-headers-git/mingw-w64-i686-*-any.pkg.tar.zst + + # CRT + - name: Get crt package version + id: version-crt + run: | + echo "version=$(pacman -Si mingw-w64-i686-crt-git | grep -Po '^Version\s*: \K.+')" >> $GITHUB_OUTPUT + - name: Cache crt package + uses: actions/cache@v4 + id: cache-crt + with: + path: MINGW-packages/mingw-w64-crt-git/*.zst + key: winxp-crt-${{ steps.version-crt.outputs.version }} + - name: Build WinXP-capable crt package + if: steps.cache-crt.outputs.cache-hit != 'true' + run: | + cd MINGW-packages/mingw-w64-crt-git + MINGW_ARCH=mingw32 makepkg-mingw -sCLf --noconfirm --nocheck + - name: Install crt package + run: pacman --noconfirm -U MINGW-packages/mingw-w64-crt-git/mingw-w64-i686-*-any.pkg.tar.zst + + # winpthreads + - name: Get winpthreads package version + id: version-winpthreads + run: | + echo "version=$(pacman -Si mingw-w64-i686-winpthreads-git | grep -Po '^Version\s*: \K.+')" >> $GITHUB_OUTPUT + - name: Cache winpthreads package + uses: actions/cache@v4 + id: cache-winpthreads + with: + path: MINGW-packages/mingw-w64-winpthreads-git/*.zst + key: winxp-winpthreads-${{ steps.version-winpthreads.outputs.version }} + - name: Build WinXP-capable winpthreads package + if: steps.cache-winpthreads.outputs.cache-hit != 'true' + run: | + cd MINGW-packages/mingw-w64-winpthreads-git + MINGW_ARCH=mingw32 makepkg-mingw -sCLf --noconfirm --nocheck + - name: Install winpthreads package + run: pacman --noconfirm -U MINGW-packages/mingw-w64-winpthreads-git/mingw-w64-i686-*-any.pkg.tar.zst + + # OpenSSL + - name: Get openssl package version + id: version-openssl + run: | + echo "version=$(pacman -Si mingw-w64-i686-openssl | grep -Po '^Version\s*: \K.+')" >> $GITHUB_OUTPUT + - name: Cache openssl package + uses: actions/cache@v4 + id: cache-openssl + with: + path: MINGW-packages/mingw-w64-openssl/*.zst + key: winxp-openssl-${{ steps.version-openssl.outputs.version }} + - name: Build WinXP-capable openssl package + if: steps.cache-openssl.outputs.cache-hit != 'true' + run: | + cd MINGW-packages/mingw-w64-openssl + gpg --recv-keys D894E2CE8B3D79F5 + gpg --recv-keys 216094DFD0CB81EF + MINGW_ARCH=mingw32 makepkg-mingw -sCLf --noconfirm --nocheck + - name: Install openssl package + run: pacman --noconfirm -U MINGW-packages/mingw-w64-openssl/mingw-w64-i686-*-any.pkg.tar.zst + + # Boost + #- name: Get boost package version + # id: version-boost + # run: | + # echo "version=$(pacman -Si mingw-w64-i686-boost | grep -Po '^Version\s*: \K.+')" >> $GITHUB_OUTPUT + - name: Cache boost package + uses: actions/cache@v4 + id: cache-boost + with: + path: MINGW-packages/mingw-w64-boost/*.zst + key: winxp-boost-1.85.0+crt-${{ steps.version-headers.outputs.version }}+ossl-${{ steps.version-openssl.outputs.version }} + # Rebuild package if packages above has changed + - name: Build WinXP-capable boost package + if: steps.cache-boost.outputs.cache-hit != 'true' + run: | + cd MINGW-packages/mingw-w64-boost + MINGW_ARCH=mingw32 makepkg-mingw -sCLf --noconfirm --nocheck + - name: Remove boost packages + run: pacman --noconfirm -R mingw-w64-i686-boost mingw-w64-i686-boost-libs + - name: Install boost package + run: pacman --noconfirm -U MINGW-packages/mingw-w64-boost/mingw-w64-i686-*-any.pkg.tar.zst + + # Building i2pd + - name: Build application + run: | + mkdir -p obj/Win32 obj/libi2pd obj/libi2pd_client obj/daemon + make USE_UPNP=yes DEBUG=no USE_GIT_VERSION=yes USE_WINXP_FLAGS=yes -j3 + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: i2pd-xp.exe + path: i2pd.exe diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml new file mode 100644 index 00000000..0b65ec9d --- /dev/null +++ b/.github/workflows/build.yml @@ -0,0 +1,67 @@ +name: Build on Ubuntu + +on: + push: + branches: + - '*' + paths: + - .github/workflows/build.yml + - build/CMakeLists.txt + - build/cmake_modules/** + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Makefile + - Makefile.linux + tags: + - '*' + pull_request: + branches: + - '*' + +jobs: + build-make: + name: Make with USE_UPNP=${{ matrix.with_upnp }} + runs-on: ubuntu-latest + + strategy: + fail-fast: true + matrix: + with_upnp: ['yes', 'no'] + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: install packages + run: | + sudo apt-get update + sudo apt-get install build-essential libboost-all-dev libminiupnpc-dev libssl-dev zlib1g-dev + + - name: build application + run: make USE_UPNP=${{ matrix.with_upnp }} -j3 + + build-cmake: + name: CMake with -DWITH_UPNP=${{ matrix.with_upnp }} + runs-on: ubuntu-latest + + strategy: + fail-fast: true + matrix: + with_upnp: ['ON', 'OFF'] + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: install packages + run: | + sudo apt-get update + sudo apt-get install build-essential cmake libboost-all-dev libminiupnpc-dev libssl-dev zlib1g-dev + + - name: build application + run: | + cd build + cmake -DWITH_UPNP=${{ matrix.with_upnp }} . + make -j3 diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml new file mode 100644 index 00000000..c6d55664 --- /dev/null +++ b/.github/workflows/docker.yml @@ -0,0 +1,140 @@ +name: Build containers + +on: + push: + branches: + - openssl + - docker + paths: + - .github/workflows/docker.yml + - contrib/docker/** + - contrib/certificates/** + - daemon/** + - i18n/** + - libi2pd/** + - libi2pd_client/** + - Makefile + - Makefile.linux + tags: + - '*' + +jobs: + build: + name: Building container for ${{ matrix.platform }} + runs-on: ubuntu-latest + permissions: + packages: write + contents: read + + strategy: + matrix: + include: [ + { platform: 'linux/amd64', archname: 'amd64' }, + { platform: 'linux/386', archname: 'i386' }, + { platform: 'linux/arm64', archname: 'arm64' }, + { platform: 'linux/arm/v7', archname: 'armv7' }, + ] + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Set up QEMU + uses: docker/setup-qemu-action@v3 + + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v3 + + - name: Login to DockerHub + uses: docker/login-action@v3 + with: + username: ${{ secrets.DOCKERHUB_USERNAME }} + password: ${{ secrets.DOCKERHUB_TOKEN }} + + - name: Login to GitHub Container registry + uses: docker/login-action@v3 + with: + registry: ghcr.io + username: ${{ github.actor }} + password: ${{ secrets.GITHUB_TOKEN }} + + - name: Build container for ${{ matrix.archname }} + uses: docker/build-push-action@v5 + with: + context: ./contrib/docker + file: ./contrib/docker/Dockerfile + platforms: ${{ matrix.platform }} + push: true + tags: | + purplei2p/i2pd:latest-${{ matrix.archname }} + ghcr.io/purplei2p/i2pd:latest-${{ matrix.archname }} + provenance: false + + push: + name: Pushing merged manifest + runs-on: ubuntu-latest + + permissions: + packages: write + contents: read + + needs: build + + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Set up QEMU + uses: docker/setup-qemu-action@v3 + + - name: Set up Docker Buildx + uses: docker/setup-buildx-action@v3 + + - name: Login to DockerHub + uses: docker/login-action@v3 + with: + username: ${{ secrets.DOCKERHUB_USERNAME }} + password: ${{ secrets.DOCKERHUB_TOKEN }} + + - name: Login to GitHub Container registry + uses: docker/login-action@v3 + with: + registry: ghcr.io + username: ${{ github.actor }} + password: ${{ secrets.GITHUB_TOKEN }} + + - name: Create and push latest manifest image to Docker Hub + if: ${{ !startsWith(github.ref, 'refs/tags/') }} + uses: Noelware/docker-manifest-action@master + with: + inputs: purplei2p/i2pd:latest + tags: purplei2p/i2pd:latest-amd64,purplei2p/i2pd:latest-i386,purplei2p/i2pd:latest-arm64,purplei2p/i2pd:latest-armv7 + push: true + + - name: Create and push latest manifest image to GHCR + if: ${{ !startsWith(github.ref, 'refs/tags/') }} + uses: Noelware/docker-manifest-action@master + with: + inputs: ghcr.io/purplei2p/i2pd:latest + tags: ghcr.io/purplei2p/i2pd:latest-amd64,ghcr.io/purplei2p/i2pd:latest-i386,ghcr.io/purplei2p/i2pd:latest-arm64,ghcr.io/purplei2p/i2pd:latest-armv7 + push: true + + - name: Store release version to env + if: ${{ startsWith(github.ref, 'refs/tags/') }} + run: echo "RELEASE_VERSION=${GITHUB_REF:10}" >> $GITHUB_ENV + + - name: Create and push release manifest to Docker Hub + if: ${{ startsWith(github.ref, 'refs/tags/') }} + uses: Noelware/docker-manifest-action@master + with: + inputs: purplei2p/i2pd:latest,purplei2p/i2pd:latest-release,purplei2p/i2pd:release-${{ env.RELEASE_VERSION }} + tags: purplei2p/i2pd:latest-amd64,purplei2p/i2pd:latest-i386,purplei2p/i2pd:latest-arm64,purplei2p/i2pd:latest-armv7 + push: true + + - name: Create and push release manifest to GHCR + if: ${{ startsWith(github.ref, 'refs/tags/') }} + uses: Noelware/docker-manifest-action@master + with: + inputs: ghcr.io/purplei2p/i2pd:latest,ghcr.io/purplei2p/i2pd:latest-release,ghcr.io/purplei2p/i2pd:release-${{ env.RELEASE_VERSION }} + tags: ghcr.io/purplei2p/i2pd:latest-amd64,ghcr.io/purplei2p/i2pd:latest-i386,ghcr.io/purplei2p/i2pd:latest-arm64,ghcr.io/purplei2p/i2pd:latest-armv7 + push: true diff --git a/.gitignore b/.gitignore index c2db70e0..75bd6abb 100644 --- a/.gitignore +++ b/.gitignore @@ -3,11 +3,17 @@ router.info router.keys i2p -libi2pd.so netDb /i2pd /libi2pd.a /libi2pdclient.a +/libi2pdlang.a +/libi2pd.so +/libi2pdclient.so +/libi2pdlang.so +/libi2pd.dll +/libi2pdclient.dll +/libi2pdlang.dll *.exe @@ -254,13 +260,20 @@ docs/generated build/Makefile # debian stuff +debian/i2pd.1.gz .pc/ # qt -qt/i2pd_qt/*.ui.autosave +qt/i2pd_qt/*.autosave qt/i2pd_qt/*.ui.bk* qt/i2pd_qt/*.ui_* #unknown android stuff android/libs/ + +#various logs +*LOGS/ + +qt/build-*.sh* + diff --git a/.travis.yml b/.travis.yml deleted file mode 100644 index c55f1885..00000000 --- a/.travis.yml +++ /dev/null @@ -1,54 +0,0 @@ -language: cpp -cache: - apt: true -os: -- linux -#- osx -dist: trusty -sudo: required -compiler: -- g++ -- clang++ -env: - global: - - MAKEFLAGS="-j 2" - matrix: - - BUILD_TYPE=make UPNP=ON MAKE_UPNP=yes - - BUILD_TYPE=make UPNP=OFF MAKE_UPNP=no - - BUILD_TYPE=cmake UPNP=ON MAKE_UPNP=yes - - BUILD_TYPE=cmake UPNP=OFF MAKE_UPNP=no -matrix: - exclude: - - os: osx - env: BUILD_TYPE=cmake UPNP=ON MAKE_UPNP=yes - - os: osx - env: BUILD_TYPE=cmake UPNP=OFF MAKE_UPNP=no - - os: linux - compiler: clang++ - env: BUILD_TYPE=make UPNP=ON MAKE_UPNP=yes - - os: linux - compiler: clang++ - env: BUILD_TYPE=make UPNP=OFF MAKE_UPNP=no -addons: - apt: - packages: - - build-essential - - cmake - - g++ - - clang - - libboost-chrono-dev - - libboost-date-time-dev - - libboost-filesystem-dev - - libboost-program-options-dev - - libboost-system-dev - - libboost-thread-dev - - libminiupnpc-dev - - libssl-dev -before_install: -- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update ; fi -- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install libressl miniupnpc ; fi -- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew outdated boost || brew upgrade boost ; fi -script: -- if [[ "$TRAVIS_OS_NAME" == "linux" && "$BUILD_TYPE" == "cmake" ]]; then cd build && cmake -DCMAKE_BUILD_TYPE=Release -DWITH_UPNP=${UPNP} && make ; fi -- if [[ "$TRAVIS_OS_NAME" == "linux" && "$BUILD_TYPE" == "make" ]]; then make USE_UPNP=${MAKE_UPNP} ; fi -- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then make HOMEBREW=1 USE_UPNP=${MAKE_UPNP} ; fi diff --git a/ChangeLog b/ChangeLog index 08f78224..23864c0e 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,10 +1,895 @@ # for this file format description, # see https://github.com/olivierlacan/keep-a-changelog +## [2.56.0] - 2025-02-11 +### Added +- Config params for shared local destination +- AddressBook full addresses cache +- Decline transit tunnel to duplicated router +- Recreate tunnels in random order +### Changed +- Exclude disk operations from SSU2 and NTCP2 threads +- Set minimal version for peer test to 0.9.62 +- Send ack requested flag after second SSU2 resend attempt +- Shorter ECIESx25519 ack request interval for datagram and I2CP sessions +- Don't change datagram routing path too often if unidirectional data stream +- Reduce LeaseSet and local RouterInfo publishing confirmation intervals +- Don't delete buffer of connected routers or if an update received +- Smaller RouterInfo request timeout if sent directly +- Persist local RouterInfo in separate thread +- Don't recalculate and process ranges for every SSU2 Ack block +- Reseeds list +### Fixed +- Termination deadlock if SAM session is active +- Race condition at tunnel endpoint +- Inbound tunnel build encryption + +## [2.55.0] - 2024-12-30 +### Added +- Support boost 1.87 +- "i2p.streaming.maxConcurrentStreams" tunnel's param to limit number of simultaneous streams +- Separate thread for tunnel build requests +- Show next peer and connectivity on "Transit tunnels" page +- Tunnel name for local destination thread +- Throttle incoming ECIESx25519 sessions +- Send tunnel data to transport session directly if possible +- Publish 'R' cap for yggdrasil-only routers, and 'U' cap for routers through proxy +- Random tunnel rejection when medium congestion +- Save unreachable router's endpoint to use it next time without introducers +- Recognize symmetric NAT from peer test message 7 +- Resend HolePunch and RelayResponse messages +### Changed +- Removed own implementation of AESNI and always use one from openssl +- Renamed main thread to i2pd-daemon +- Set i2p.streaming.profile=2 for shared local destination +- Reduced LeaseSet and RouterInfo lookup timeouts +- Cleanup ECIES sessions and tags more often +- Check LeaseSet expiration time +- Handle NTCP2 session handshakes in separate thread +- Limit last decline time by 1.5 hours in router's profile +- Don't handle RelayRequest and RelayIntro with same nonce twice +- Increased hole punch expiration interval +- Send peer test message 6 with delay if message 4 was received before message 5 +- Pre-calculate more x25519 keys for transports in runtime +- Don't request LeaseSet for incoming stream +- Terminate incoming stream right away if no remote LeaseSet +- Handle choked, new RTO and window size calculation and resetting algorithm for streams +### Fixed +- Empty string in addressbook subscriptions +- ECIESx25519 sessions without destination +- Missing RouterInfo buffer in NetDb +- Invalid I2PControl certificate +- Routers disappear from NetDb when offline +- Peer test message 6 sent to unknown endpoint +- Race condition with LeaseSet update +- Excessive CPU usage by streams +- Crash on shutdown + +## [2.54.0] - 2024-10-06 +### Added +- Maintain recently connected routers list to avoid false-positive peer test +- Limited connectivity mode(through proxy) +- "i2p.streaming.profile" tunnel's param to let tunnel select also low-bandwidth routers +- Limit stream's inbound speed +- Periodic ack requests in ratchets session +- Set congestion cap G immediately if through proxy +- Show tunnel's routers bandwidth caps in web console +- Handle immediate ack requested flag in SSU2 data packets +- Resend and ack peer test and relay messages +- "senduseragent" HTTP proxy's param to pass through user's User-Agent +### Changed +- Exclude 'N' routers from high-bandwidth routers for client tunnels +- C++11 support has been dropped, the minimal requirement is C++17 now, C++20 for some compilers +- Removed dependency from boost::date_time and boost::filesystem +- Set default i2cp.leaseSetEncType to 0,4 and to 4 for server tunnels +- Handle i2cp.inboundlimit and i2cp.outboundlimit params in I2CP +- Publish LeaseSet with new timestamp update if tunnel was replaced in the same second +- Increase max number of generated tags to 800 per tagset +- Routing path expiration by time instead num attempts +- Save timestamp from epoch instead local time to profiles +- Update introducer's iTag if session to introducer was replaced to new one +- RTT, window size and number of NACKs calculation for streaming +- Don't select same peer for tunnel too often +- Use WinApi for data path UTF-8 conversion for Windows +### Fixed +- Jump link crash if address book is disabled +- Race condition if connect through an introducer +- "Date" header in I2PControl response +- Incomplete response from web console +- AEAD verification with LibreSSL +- Number of generated tags and new keys for follow-on tagsets +- Expired leases in LeaseSet +- Attempts to send HolePunch to 0.0.0.0 +- Incorrect options size in quick ack streaming packet +- Low bandwidth router appeared as first peer in high-bandwidth client tunnel + +## [2.53.1] - 2024-07-29 +### Changed +- I2CP performance improvement +### Fixed +- 100% CPU usage after I2CP/SAM/BOB session termination +- Incorrect client limits returned through I2CP +- Build with LibreSSL + +## [2.53.0] - 2024-07-19 +### Added +- New congestion control algorithm for streaming +- Support miniupnp-2.2.8 +- Limit stream's outbound speed +- Flood to next day closest floodfills before UTC midnight +- Recognize duplicated routers and bypass them +- Random SSU2 resend interval +### Changed +- Set minimal version to 0.9.69 for floodfills and 0.9.58 for client tunnels +- Removed openssl 1.0.2 support +- Move unsent I2NP messages to the new session if replaced +- Use mt19937 RNG instead rand() +- Update router's congestion caps before initial publishing +- Don't try introducer with invalid address +- Select newest introducers to publish +- Don't request relay tag for every session if we have enough introducers +- Update timestamp for non-reachable or hidden router +- Reset streaming routing path if duplicated SYN received +- Update LeaseSet if inbound tunnel failed +- Reseeds list +### Fixed +- Crash when a destination gets terminated +- Expired offline signature upon destination creation +- Race condition between local RouterInfo buffer creation and sending it through the transports + +## [2.52.0] - 2024-05-12 +### Added +- Separate threads for persisting RouterInfos and profiles to disk +- Give preference to address with direct connection +- Exclude addresses with incorrect static or intro key +- Avoid two firewalled routers in the row in tunnel +- Drop unsolicited database search replies +### Changed +- Increase number of hashes to 16 in exploratory lookup reply +- Reduce number of a RouterInfo lookup attempts to 5 +- Reset stream RTO if outbound tunnel was changed +- Insert previously excluded floodfill back when successfully connected +- Increase maximum stream resend attempts to 9 +- Reply to exploratory lookups with only confirmed routers if low tunnel build rate +- Don't accept too old RouterInfo +- Build client tunnels through confirmed routers only if low tunnel build rate +- Manage netDb requests more frequently +- Don't reply with closer than us only floodfills for lookup +### Fixed +- Crash on router lookup if exploratory pool is not ready +- Race condition in excluded peers for next lookup +- Excessive number of lookups for same destination +- Race condition with transport peers during shutdown +- Corrupted RouterInfo files + +## [2.51.0] - 2024-04-06 +### Added +- Non-blocking mode for UDP sockets +- Set SSU2 socket buffer size based on bandwidth limit +- Encrypted tunnel tests +- Support for multiple UDP server tunnels on one destination +- Publish medium congestion indication +- Local domain sockets for SOCKS proxy upstream +- Tunnel status "declined" in web console +- SAM error reply "Incompatible crypto" if remote destination has incompatible crypto +- Reduce amount of traffic by handling local message drops +- Keep SSU2 socket open even if it fails to bind +- Lower SSU2 resend traffic spikes +- Expiration for messages in SSU2 send queue +- Use EWMA for stream RTT estimation +- Request choking delay if too many NACKs in stream +- Allow 0ms latency for tunnel +- Randomize tunnels selection for tests +### Changed +- Upstream SOCKS proxy from SOCKS4 to SOCKS5 +- Transit tunnels limit to 4 bytes. Default value to 10K +- Reply CANT_REACH_PEER if connect to ourselves in SAM +- Don't send already expired I2NP messages +- Use monotonic timer to measure tunnel test latency +- Standard NTCP2 frame doesn't exceed 16K +- Always send request through tunnels in case of restricted routes +- Don't delete connected routers from NetDb +- Send lookup reply directly to reply tunnel gateway if possible +- Reduce unreachable router ban interval to 8 minutes +- Don't request banned routers / don't try to connect to unreachable router +- Consider 'M' routers as low bandwidth +- Limit minimal received SSU2 packet size to 40 bytes +- Bob picks peer test session only if Charlie's address supports peer testing +- Reject peer test msg 2 if peer testing is not supported +- Don't request termination if SSU2 session was not established +- Set maximum SSU2 queue size depending on RTT value +- New streaming RTT calculation algorithm +- Don't double initial RTO for streams when changing tunnels +- Restore failed tunnel if test or data for inbound tunnel received +- Don't fail last remaining tunnel in pool +- Publish LeasetSet again if local destination was not ready or no tunnels +- Make more attempts to pick high bandwidth hop for client tunnel +- Reduced SSU2 session termination timeout to 165 seconds +- Reseeds list +### Fixed +- ECIESx25519 symmetric key tagset early expiration +- Encrypted LeaseSet lookup +- Outbound tunnel build fails if it's endpoint is the same as reply tunnel gateway +- I2PControl RouterManager returns invalid JSON when unknown params are passed +- Mix of data between different UDP sessions on the same server +- TARGET_OS_SIMULATOR check +- Handling of "reservedrange" param +- New NTCP2 session gets teminated upon termination of old one +- New SSU2 session gets teminated upon termination of old one +- Peer test to non-supporting router +- Streaming ackThrough off 1 if number of NACKs exceeds 255 +- Race condition in ECIESx25519 tags table +- Good tunnel becomes failed +- Crash when packet comes to terminated stream +- Stream hangs during LeaseSet update + +## [2.50.2] - 2024-01-06 +###Fixed +- Crash with OpenSSL 3.2.0 +- False positive clock skew detection + +## [2.50.1] - 2023-12-23 +###Fixed +- Support for new EdDSA usage behavior in OpenSSL 3.2.0 + +## [2.50.0] - 2023-12-18 +### Added +- Support of concurrent ACCEPTs on SAM 3.1 +- Haiku OS support +- Low bandwidth and far routers can expire before 1 hour +### Changed +- Don't pick too active peer for first hop +- Try peer test again if status is Unknown +- Send peer tests with random delay +- Reseeds list +### Fixed +- XSS vulnerability in addresshelper +- Publishing NAT64 ipv6 addresses +- Deadlock in AsyncSend callback + +## [2.49.0] - 2023-09-18 +### Added +- Handle SOCK5 authorization with empty user/password +- Drop incoming transport sessions from too old or from future routers +- Memory pool for router profiles +- Allow 0 hops in explicitPeers +### Changed +- Separate network and testing status +- Remove AVX code +- Improve NTCP2 transport session logging +- Select router with ipv4 for tunnel endpoint +- Consider all addresses non-published for U and H routers even if they have host/port +- Don't pick completely unreachable routers for tunnels +- Exclude SSU1 introducers from SSU2 addresses +- Don't create paired inbound tunnel if length is different +- Remove introducer from RouterInfo after 60 minutes +- Reduce SSU2 keep alive interval and add keep alive interval variance +- Don't pick too old sessions for introducer +### Fixed +- Version of the subnegotiation in user/password SOCKS5 response +- Send keepalive for existing session with introducer +- Buffer offset for EVP_EncryptFinal_ex() to include outlen +- Termination block size processing for transport sessions +- Crash if deleted BOB destination was shared between few BOB sessions +- Introducers with zero tag +- Padding for SSU2 path response + +## [2.48.0] - 2023-06-12 +### Added +- Allow user/password authentication method for SOCK5 proxy +- Publish reject all congestion cap 'G' if transit is not accepted +- 'critical' log level +- Print b32 on webconsole destination page +- Webconsole button to drop a remote LeaseSet +- limits.zombies param - minimum percentage of successfully created tunnels for routers cleanup +- Recognize real routers if successfully connected or responded to tunnel build request +### Changed +- Bypass slow transport sessions for first hop selection +- Limit AESNI inline asm to x86/x64 +- Create smaller I2NP packets if possible +- Make router unreachable if AEAD tag verification fails in SessionCreated +- Don't include a router to floodfills list until it's confirmed as real +- Drop LeaseSet store request if not floodfill +- Bypass medium congestion('D') routers for client tunnels +- Publish encrypted RouterInfo through tunnels +- Check if s is valid x25519 public key +- Check if socket is open before sending data in SSU2 +### Fixed +- Webconsole empty page if destination is not found +- i2p.streaming.answerPings param +- Reload tunnels +- Address caps for unspecified ipv6 address +- Incomplete HTTP headers in I2P tunnels +- SSU2 socket network exceptions on Windows +- Use of 'server' type tunnel port as inport (#1936) + +## [2.47.0] - 2023-03-11 +### Added +- Congestion caps +- SAM UDP port parameter +- Support domain addresses for yggdrasil reseeds +### Changed +- DHT for floodfills instead plain list +- Process router's messages in separate thread +- Don't publish non-reachable router +- Send and check target destination in first streaming SYN packet +- Reseeds list +### Fixed +- Memory leak in windows network state detection +- Reseed attempts from invalid address + +## [2.46.1] - 2023-02-20 +### Fixed +- Race condition while getting router's peer profile +- Creation of new router.info +- Displaying LeaseSets in the webconsole +- Crash when processing ACK request + +## [2.46.0] - 2023-02-15 +### Added +- Limit number of acked SSU2 packets to 511 +- Localization to Swedish, Portuguese, Turkish, Polish +- Periodically send Datetime block in NTCP2 and SSU2 +- Don't select random port from reserved +- In memory table for peer profiles +- Store if router was unreachable in it's peer profile +- Show IPv6 addresses in square brackets in webconsole +- Check referer when processing Addresshelper +### Changed +- Algorithm for tunnel creation success rate calculation +- Drop incoming NTCP2 and SSU2 connection if published IP doesn't match actual endpoint +- Exclude actually unreachable router from netdb for 2 hours +- Select first hop from high bandwidth peers for client tunnels +- Drop too long or too short LeaseSet +- Delete router from netdb if became invalid after update +- Terminate existing session if clock skew detected +- Close previous UDP socket if open before reopening +- Minimal version for floodfill is 0.9.51 +- Sort transports by endpoints in webconsole +### Fixed +- Deadlock during processing I2NP block with Garlic in ECIES encrypted message to router +- Race condition with encrypted LeaseSets +- HTTP query detection +- Connection attempts to IPs from invalid ranges +- Publish "0.0.0.0" in RouterInfo +- Crash upon receiving PeerTest 7 +- Tunnels for closed SAM session socket +- Missing NTCP2 address in RouterInfo if enabled back + +## [2.45.1] - 2023-01-11 +### Added +- Full Cone NAT status error +### Changed +- Drop duplicated I2NP messages in SSU2 +- Set rejection code 30 if tunnel with id already exists +- Network status is always OK if peer test msg 5 received +### Fixed +- UPnP crash if SSU2 or NTCP2 is disabled +- Crash on termination for some platforms + +## [2.45.0] - 2023-01-03 +### Added +- Test for Symmetric NAT with peer test msgs 6 and 7 +- Webconsole "No Descriptors" router error state +- 1 and 15 seconds bandwidth calculation for i2pcontrol +- Show non-zero send queue size for transports in web console +- Compressible padding for I2P addresses +- Localization to Czech +- Don't accept incoming session from invalid/reserved addresses for NTCP2 and SSU2 +- Limit simultaneous tunnel build requests by 4 per pool +### Changed +- Removed SSU support +- Reduced bandwidth calculation interval from 60 to 15 seconds +- Increased default max transit tunnels number from 2500 to 5000 or 10000 for floodfill +- Transit tunnels limit is doubled if floodfill mode is enabled +- NTCP2 and SSU2 timestamps are rounded to seconds +- Drop RouterInfos and LeaseSets with timestamp from future +- Don't delete unreachable routers if tunnel creation success rate is too low +- Refuse duplicated incoming pending NTCP2 session from same IP +- Don't send SSU2 termination again if termination received block received +- Handle standard network error for SSU2 without throwing an exception +- Don't select overloaded peer for next tunnel +- Remove "X-Requested-With" in HTTP Proxy for non-AJAX requests +### Fixed +- File descriptors leak +- Random crash on AddressBook update +- Crash if incorrect LeaseSet size +- Spamming to log if no descriptors +- ::1 address in RouterInfo +- SSU2 network error handling (especially for Windows) +- Race condition with pending outgoing SSU2 sessions +- RTT self-reduction for long-live streams + +## [2.44.0] - 2022-11-20 +### Added +- SSL connection for server I2P tunnels +- Localization to Italian and Spanish +- SSU2 through SOCKS5 UDP proxy +- Reload tunnels through web console +- SSU2 send immediate ack request flag +- SSU2 send and verify path challenge +- Configurable ssu2.mtu4 and ssu2.mtu6 +### Changed +- SSU2 is enabled and SSU is disabled by default +- Separate network status and error +- Random selection between NTCP2 and SSU2 priority +- Added notbob.i2p to jump services +- Remove DoNotTrack flag from HTTP Request header +- Skip addresshelper page if destination was not changed +- SSU2 allow different ports from RelayReponse and HolePunch +- SSU2 resend PeerTest msg 1 and msg 2 +- SSU2 Send Retry instead SessionCreated if clock skew detected +### Fixed +- Long HTTP headers for HTTP proxy and HTTP server tunnel +- SSU2 resends and resend limits +- Crash at startup if addressbook is disabled +- NTCP2 ipv6 connection through SOCKS5 proxy +- SSU2 SessionRequest with zero token +- SSU2 MTU less than 1280 +- SSU2 port=1 +- Incorrect addresses from network interfaces +- Definitions for Darwin PPC; do not use pthread_setname_np + +## [2.43.0] - 2022-08-22 +### Added +- Complete SSU2 implementation +- Localization to Chinese +- Send RouterInfo update for long live sessions +- Explicit ipv6 ranges of known tunnel brokers for MTU detection +- Always send "Connection: close" and strip out Keep-Alive for server HTTP tunnel +- Show ports for all transports in web console +- Translation of webconsole site title +- Support for Windows ProgramData path when running as service +- Ability to turn off address book +- Handle signals TSTP and CONT to stop and resume network +### Changed +- Case insensitive headers for server HTTP tunnel +- Do not show 'Address registration' line if LeaseSet is encrypted +- SSU2 transports have higher priority than SSU +- Disable ElGamal precalculated table if no SSU +- Deprecate limits.ntcpsoft, limits.ntcphard and limits.ntcpthreads config options +- SSU2 is enabled and SSU is disabled by default for new installations +### Fixed +- Typo with Referer header name in HTTP proxy +- Can't handle garlic message from an exploratory tunnel +- Incorrect encryption key for exploratory lookup reply +- Bound checks issues in LeaseSets code +- MTU detection on Windows +- Crash on stop of active server tunnel +- Send datagram to wrong destination in SAM +- Incorrect static key in RouterInfo if the keys were regenerated +- Duplicated sessions in BOB + +## [2.42.1] - 2022-05-24 +### Fixed +- Incorrect jump link in HTTP Proxy + +## [2.42.0] - 2022-05-22 +### Added +- Preliminary SSU2 implementation +- Tunnel length variance +- Localization to French +- Daily cleanup of obsolete peer profiles +- Ordered jump services list in HTTP proxy +- Win32 service +- Show port for local non-published SSU addresses in web console +### Changed +- Maximum RouterInfo length increased to 3K +- Skip unknown addresses in RouterInfo +- Don't pick own router for peer test +- Reseeds list +- Internal numeric id for families +- Use ipv6 preference only when netinet headers not used +- Close stream if delete requested +- Remove version from title in web console +- Drop MESHNET build option +- Set data path before initialization +- Don't show registration block in web console if token is not provided +### Fixed +- Encrypted LeaseSet for EdDSA signature +- Clients tunnels are not built if clock is not synced on start +- Incorrect processing of i2cp.dontPublishLeaseSet param +- UDP tunnels reload +- Build for LibreSSL 3.5.2 +- Race condition in short tunnel build message +- Race condition in local RouterInfo buffer allocation + +## [2.41.0] - 2022-02-20 +### Added +- Clock syncronization through SSU +- Drop routers older than 6 months on start +- Localization to German +- Don't send streaming ack too frequently +- Select compatible outbound tunnel for I2CP messages +- Restart webconsole's acceptor in case of exception +### Changed +- Use builtin bitswap for endian on windows +- Send SessionCreated before connection close if clock skew +- Try another floodfill for publishing if no compatible tunnels found +- Reduce memory usage for RouterInfo structures +- Avoid duplicated addresses in RouterInfo. Check presence of netId and version +- Use TCP/IP sockets for I2CP on Android instead local sockets +- Return uptime as integer in I2PControl +- Reseed servers list/cerificates +- Webconsole's dark style colors +### Fixed +- Attempt to use Yggdrasil on start on Android +- Attempts to send peer tests to itself +- Severe packets drop in SSU +- Crash on tunnel tests +- Loading addressbook subscriptions from config +- Multiple I2CP session to the same destination +- Build on Apple Silicon + +## [2.40.0] - 2021-11-29 +### Added +- Keep alive parameter for client tunnels +- Support openssl 3.0.0 +- Localization to Armenian +- Show git commit info in version +- Windows menu item for opening datadir +- Reseed if too few floodfills +- Don't publish old and replacing tunnel in LeaseSet +- Webconsole light/dark theme depending on system settings (via CSS) +### Changed +- Set gzip compression to false by default +- Build tunnel through ECIES routers only +- Removed ElGamal support for tunnels +- Moved webconsole resources to separate file +- Pick tunnels with compatible transport with another tunnel of floodfill +- Use common cleanup timer for all SSU sessions +- Reduced memory usage +- Reseed servers list +- i18n code called from ClientContext +### Fixed +- Tunnels reload +- Some typos in log messages +- Cleanup relay requests table +- Server tunnel is not published +- Build on GNU/Hurd. Disable pthread_setname_np +- Crash when incorrect sigtype used with blinding + +## [2.39.0] - 2021-08-23 +### Added +- Short tunnel build messages +- Localization. To: Russian, Ukrainian, Turkmen, Uzbek and Afrikaans +- Custom CSS styles for webconsole +- Avoid slow tunnels with more than 250 ms per hop +- Process DELAY_REQUESTED streaming option +- "certsdir" options for certificates location +- Keep own RouterInfo in NetBb +- Pick ECIES routers only for tunnels on non-x64 +- NTP sync through ipv6 +- Allow ipv6 addresses for UDP server tunnels +### Changed +- Rekey of all routers to ECIES +- Better distribution for random tunnel's peer selection +- Yggdrasil reseed for v0.4, added two more +- Encryption type 0,4 by default for server tunnels +- Handle i2cp.dontPublishLeaseSet param for all destinations +- reg.i2p for subscriptions +- LeaseSet type 3 by default +- Don't allocate payload buffer for every single ECIESx25519 message +- Prefer public ipv6 instead rfc4941 +- Optimal padding for one-time ECIESx25519 message +- Don't send datetime block for one-time ECIESx25519 message with one-time key +- Router with expired introducer is still valid +- Don't disable floodfill if still reachable by ipv6 +- Set minimal version for floodfill to 0.9.38 +- Eliminate extra lookups for sequential fragments on tunnel endpoint +- Consistent path for explicit peers +- Always create new tunnel from exploratory pool +- Don't try to connect to a router not reachable from us +- Mark additional ipv6 addresses/nets as reserved (#1679) +### Fixed +- Zero-hop tunnels +- Crash upon SAM session termination +- Build with boost < 1.55.0 +- Address type for NTCP2 acceptors +- Check of ipv4/ipv6 address +- Request router to send to if not in NetDb +- Count outbound traffic for zero-hop tunnels +- URLdecode domain for registration string generator in webconsole + +## [2.38.0] - 2021-05-17 +### Added +- Publish ipv6 introducers +- Bind ipv6 or yggdrasil NTCP2 acceptor to specified address +- Support .b32.i2p addresses and hostnames for SAM STREAM CREATE +- ipv6 peer tests +- Publish iexp param for introducers +- Show ipv6 network status on the webconsole +- EdDSA signing keys can also be blinded +- Show router version on the webconsole +### Changed +- Rekey of all routers but floodfills to ECIES +- Increased number of precalculated x25519 keys to 15 +- Don't publish LeaseSet without inbound tunnels +- Reseed from compatible address(ipv4 or ipv6) +- Recongnize v4 and v6 SSU addresses without host +- Inbound tunnel gateway must be ipv4 compatible +- Don't select next introducers from existing sessions +- Set X bandwidth for floodfill by default +### Fixed +- Incoming ECIES-x25519 session doesn't send updated LeaseSet +- Unique local address for server tunnels +- Race condition for LeaseSet creation in I2CP +- Relay tag for ipv6 introducer +- Already expired introducers +- Find connected router for first peer in tunnel +- Failed outgoing ECIES-x25519 session's tagset stays forever +- Yggdrasil address disappears if router becomes unreachable through ipv6 +- Ignore SSU address/introducers if port is not specified +- Check identity and signature length for SSU SessionConfirmed + +## [2.37.0] - 2021-03-15 +### Added +- Address registration line for reg.i2p and stats.i2p through the web console +- "4" and "6" caps for addresses without published IP address +- Mesh and Proxy network statuses +- Symmetric NAT network status error +- Bind server tunnel connection to specified address +- lookuplocal BOB extended command +- address4 and address6 parameters to bind outgoing connections to +- Rekey of low-bandwidth routers to ECIES +- Popup notification windows when unable to parse config for Windows +### Changed +- Floodfills with "U" cap are not ignored anymore +- Check transports reachability between tunnel peers and between router and floodfill +- NTCP2 and reseed HTTP proxy support authorization now +- Show actual IP addresses for proxy connections +- Publish and handle SSU addreses without host +- Outbound tunnel endpoint must be ipv4 compatible +- Logging optimization +- Removed Windows service +### Fixed +- Incoming SSU session terminates after 5 seconds +- Outgoing NTCP2 ipv4 session even if ipv4 is disabled +- No incoming Yggdrasil connection if connected through NTCP2 proxy +- Race condition between tunnel build and floodfill requests decryption for ECIES routers +- Numeric bandwidth limitation +- Yggdrasil for Android + +## [2.36.0] - 2021-02-15 +### Added +- Encrypted lookup and publications to ECIES-x25519 floodfiils +- Yggdrasil transports and reseeds +- Dump addressbook in hosts.txt format +- Request RouterInfo through exploratory tunnels if direct connection to fllodfill is not possible +- Threads naming +- Check if public x25519 key is valid +- ECIES-X25519-AEAD-Ratchet for shared local destination +- LeaseSet creation timeout for I2CP session +- Resend RouterInfo after some interval for longer NTCP2 sessions +- Select reachable router of inbound tunnel gateway +- Reseed if no compatible routers in netdb +- Refresh on swipe in Android webconsole +### Changed +- reg.i2p for default addressbook instead inr.i2p +- ECIES-x25519 (crypto type 4) for new routers +- Try to connect to all compatible addresses from peer's RouterInfo +- Replace LeaseSet completely if store type changes +- Try ECIES-X25519-AEAD-Ratchet tag before ElGamal +- Don't detach ECIES-X25519-AEAD-Ratchet session from destination immediately +- Viewport and styles on error in HTTP proxy +- Don't create notification when Windows taskbar restarted +- Cumulative SSU ACK bitfields +- limit tunnel length to 8 hops +- Limit tunnels quantity to 16 +### Fixed +- Handling chunked HTTP response in addressbook +- Missing ECIES-X25519-AEAD-Ratchet tags for multiple streams with the same destination +- Correct NAME for NAMING REPLY in SAM +- SSU crash on termination +- Offline signature length for stream close packet +- Don't send updated LeaseSet through a terminated session +- Decryption of follow-on ECIES-X25519-AEAD-Ratchet NSR messages +- Non-confirmed LeaseSet is resent too late for ECIES-X25519-AEAD-Ratchet session + +## [2.35.0] - 2020-11-30 +### Added +- ECIES-x25519 routers +- Random intro keys for SSU +- Graceful shutdown timer for windows +- Send queue for I2CP messages +- Update DSA router keys to EdDSA +- TCP_QUICKACK for NTCP2 sockets on Linux +### Changed +- Exclude floodfills with DSA signatures and < 0.9.28 +- Random intervals between tunnel tests and manage for tunnel pools +- Don't replace an addressbook record by one with DSA signature +- Publish RouterInfo after update +- Create paired inbound tunnels if no inbound tunnels yet +- Reseed servers list +### Fixed +- Transient signature length, if different from identity +- Terminate I2CP session if destroyed +- RouterInfo publishing confirmation +- Check if ECIES-X25519-AEAD-Ratchet session expired before generating more tags +- Correct block size for delivery type local for ECIES-X25519-AEAD-Ratchet + +## [2.34.0] - 2020-10-27 +### Added +- Ping responses for streaming +- STREAM FORWARD for SAM +- Tunnels through ECIES-x25519 routers +- Single thread for I2CP +- Shared transient destination between proxies +- Database lookups from ECIES destinations with ratchets response +- Handle WebDAV HTTP methods +- Don't try to connect or build tunnels if offline +- Validate IP when trying connect to remote peer +- Handle ICMP responses and WinAPI errors for SSU +### Changed +- Removed NTCP +- Dropped gcc 4.7 support +- Encyption type 0,4 by default for client tunnels +- Stripped out some HTTP header for HTTP server response +- HTTP 1.1 addressbook requests +- Set LeaseSet type to 3 for ratchets if not specified +- Handle SSU v4 and v6 messages in one thread +- Eliminate DH keys thread +### Fixed +- Random crashes on I2CP session disconnect +- Stream through racthets hangs if first SYN was not acked +- Check "Last-Modified" instead "If-Modified-Since" for addressbook reponse +- Trim behind ECIESx25519 tags +- Few bugs with Android main activity +- QT visual and layout issues + +## [2.33.0] - 2020-08-24 +### Added +- Shared transient addresses +- crypto.ratchet.inboundTags paramater +- Multiple encryption keys through I2CP +- Pre-calculated x25519 ephemeral keys +- Change datagram routing path if nothing comes back in 10 seconds +- Shared routing path for datagram session +### Changed +- UDP tunnels send mix of repliable and raw datagrams in bulk +- Encrypt SSU packet again upon resend +- Start new tunnel message if remaining buffer is too small +- Use LeaseSet2 for ECIES-X25519-AEAD-Ratchet automatically +- Save new ECIES-X25519-AEAD-Ratchet session with NSR tagset +- Generate random padding lengths for ECIES-X25519-AEAD-Ratchet in bulk +- Webconsole layout +- Reseed servers list +### Fixed +- Don't connect through terminated SAM destination +- Differentiate UDP server sessions by port +- ECIES-X25519-AEAD-Ratchet through I2CP +- Don't save invalid address to AddressBook +- ECDSA signatures names in SAM +- AppArmor profile + +## [2.32.1] - 2020-06-02 +### Added +- Read explicit peers in tunnels config +### Fixed +- Generation of tags for detached sessions +- Non-updating LeaseSet1 +- Start when deprecated websocket options present in i2pd.conf + +## [2.32.0] - 2020-05-25 +### Added +- Multiple encryption types for local destinations +- Next key and tagset for ECIES-X25519-AEAD-Ratchet +- NTCP2 through SOCKS proxy +- Throw error message if any port to bind is occupied +- gzip parameter for UDP tunnels +- Show ECIES-X25519-AEAD-Ratchet sessions and tags on the web console +- Simplified implementation of gzip for no compression mode +- Allow ECIES-X25519-AEAD-Ratchet session restart after 2 minutes +- Added logrotate config for rpm package +### Changed +- Select peers for client tunnels among routers >= 0.9.36 +- Check ECIES flag for encrypted lookup reply +- Streaming MTU size 1812 for ECIES-X25519-AEAD-Ratchet +- Don't calculate checksum for Data message send through ECIES-X25519-AEAD-Ratchet +- Catch network connectivity status for Windows +- Stop as soon as no more transit tunnels during graceful shutdown for Android +- RouterInfo gzip compression level depends on size +- Send response to received datagram from ECIES-X25519-AEAD-Ratchet session +- Update webconsole functional +- Increased max transit tunnels limit +- Reseeds list +- Dropped windows support in cmake +### Fixed +- Correct timestamp check for LeaseSet2 +- Encrypted leaseset without authentication +- Change SOCKS proxy connection response for clients without socks5h support (#1336) + +## [2.31.0] - 2020-04-10 +### Added +- NTCP2 through HTTP proxy +- Publish LeaseSet2 for I2CP destinations +- Show status page on main activity for android +- Handle ECIESFlag in DatabaseLookup at floodfill +- C++17 features for eligible compilers +### Changed +- Droped Websockets and Lua support +- Send DeliveryStatusMsg for LeaseSet for ECIES-X25519-AEAD-Ratchet +- Keep sending new session reply until established for ECIES-X25519-AEAD-Ratchet +- Updated SSU log messages +- Reopen SSU socket on exception +- Security hardening headers in web console +- Various web console changes +- Various QT changes +### Fixed +- NTCP2 socket descriptors leak +- Race condition with router's identity in transport sessions +- Not terminated streams remain forever + +## [2.30.0] - 2020-02-25 +### Added +- Single threaded SAM +- Experimental support of ECIES-X25519-AEAD-Ratchet crypto type +### Changed +- Minimal MTU size is 1280 for ipv6 +- Use unordered_map instead map for destination's sessions and tags list +- Use std::shuffle instead std::random_shuffle +- SAM is single threaded by default +- Reseeds list +### Fixed +- Correct termination of streaming destination +- Extra ',' in RouterInfo response in I2PControl +- SAM crash on session termination +- Storage for Android 10 + +## [2.29.0] - 2019-10-21 +### Added +- Client auth flag for b33 address +### Changed +- Remove incoming NTCP2 session from pending list when established +- Handle errors for NTCP2 SessionConfrimed send +### Fixed +- Failure to start on Windows XP +- SAM crash if invalid lookup address +- Possible crash when UPnP enabled on shutdown + +## [2.28.0] - 2019-08-27 +### Added +- RAW datagrams in SAM +- Publishing encrypted LeaseSet2 with DH or PSH authentication +- Ability to disable battery optimization for Android +- Transport Network ID Check +### Changed +- Set and handle published encrypted flag for LeaseSet2 +### Fixed +- ReceiveID changes in the same stream +- "\r\n" command terminator in SAM +- Addressbook lines with signatures + +## [2.27.0] - 2019-07-03 +### Added +- Support of PSK and DH authentication for encrypted LeaseSet2 +### Changed +- Uptime is based on monotonic timer +### Fixed +- BOB status command response +- Correct NTCP2 port if NTCP is disabled +- Flood encrypted LeaseSet2 with store hash + +## [2.26.0] - 2019-06-07 +### Added +- HTTP method "PROPFIND" +- Detection of external ipv6 address through the SSU +- NTCP2 publishing depends on network status +### Changed +- ntcp is disabled by default, ntcp2 is published by default +- Response to BOB's "list" command +- ipv6 address is not longer NTCP's local endpoint's address +- Reseeds list +- HTTP_REFERER stripping in httpproxy (#823) +### Fixed +- Check and handle incorrect BOB input +- Ignore introducers for NTCP or NTCP2 addresses +- RouterInfo check from NTCP2 + ## [2.25.0] - 2019-05-09 ### Added - Create, publish and handle encrypted LeaseSet2 -- Support of b33 addresses +- Support of b33 addresses - RedDSA key blinding - .b32.i2p addresses in jump links - ntcp2.addressv6 parameter @@ -36,7 +921,7 @@ - Correct SAM response for invalid key - SAM crash on termination for Windows - Race condition for publishing - + ## [2.23.0] - 2019-01-21 ### Added - Standard LeaseSet2 support @@ -95,7 +980,7 @@ - NTCP2 is enabled by default - Show lease's expiration time in readable format in the web console ### Fixed -- Correct names for transports in the web console +- Correct names for transports in the web console ## [2.19.0] - 2018-06-26 ### Added @@ -259,7 +1144,7 @@ ### Added - Datagram i2p tunnels - Unique local addresses for server tunnels -- Configurable list of reseed servers and initial addressbook +- Configurable list of reseed servers and initial addressbook - Configurable netid - Initial iOS support diff --git a/LICENSE b/LICENSE index 2cb10225..f59491f5 100644 --- a/LICENSE +++ b/LICENSE @@ -1,4 +1,4 @@ -Copyright (c) 2013-2015, The PurpleI2P Project +Copyright (c) 2013-2025, The PurpleI2P Project All rights reserved. diff --git a/Makefile b/Makefile index 3dfaaade..0d4ca48c 100644 --- a/Makefile +++ b/Makefile @@ -1,24 +1,43 @@ +.DEFAULT_GOAL := all + SYS := $(shell $(CXX) -dumpmachine) -SHLIB := libi2pd.so + +ifneq (, $(findstring darwin, $(SYS))) + SHARED_SUFFIX = dylib +else ifneq (, $(findstring mingw, $(SYS))$(findstring windows-gnu, $(SYS))$(findstring cygwin, $(SYS))) + SHARED_SUFFIX = dll +else + SHARED_SUFFIX = so +endif + +SHLIB := libi2pd.$(SHARED_SUFFIX) ARLIB := libi2pd.a -SHLIB_CLIENT := libi2pdclient.so +SHLIB_LANG := libi2pdlang.$(SHARED_SUFFIX) +ARLIB_LANG := libi2pdlang.a +SHLIB_CLIENT := libi2pdclient.$(SHARED_SUFFIX) ARLIB_CLIENT := libi2pdclient.a +SHLIB_WRAP := libi2pdwrapper.$(SHARED_SUFFIX) +ARLIB_WRAP := libi2pdwrapper.a I2PD := i2pd -GREP := grep -DEPS := obj/make.dep LIB_SRC_DIR := libi2pd LIB_CLIENT_SRC_DIR := libi2pd_client +WRAP_SRC_DIR := libi2pd_wrapper +LANG_SRC_DIR := i18n DAEMON_SRC_DIR := daemon +# import source files lists include filelist.mk -USE_AESNI := yes -USE_AVX := yes -USE_STATIC := no -USE_MESHNET := no -USE_UPNP := no -DEBUG := yes +USE_STATIC := $(or $(USE_STATIC),no) +USE_UPNP := $(or $(USE_UPNP),no) +DEBUG := $(or $(DEBUG),yes) + +# for debugging purposes only, when commit hash needed in trunk builds in i2pd version string +USE_GIT_VERSION := $(or $(USE_GIT_VERSION),no) + +# for MacOS only, waiting for "1", not "yes" +HOMEBREW := $(or $(HOMEBREW),0) ifeq ($(DEBUG),yes) CXX_DEBUG = -g @@ -27,8 +46,8 @@ else LD_DEBUG = -s endif -ifeq ($(WEBSOCKETS),1) - NEEDED_CXXFLAGS += -DWITH_EVENTS +ifneq (, $(DESTDIR)) + PREFIX = $(DESTDIR) endif ifneq (, $(findstring darwin, $(SYS))) @@ -38,36 +57,57 @@ ifneq (, $(findstring darwin, $(SYS))) else include Makefile.osx endif +else ifneq (, $(findstring mingw, $(SYS))$(findstring windows-gnu, $(SYS))$(findstring cygwin, $(SYS))) + DAEMON_SRC += Win32/DaemonWin32.cpp Win32/Win32App.cpp Win32/Win32Service.cpp Win32/Win32NetState.cpp + include Makefile.mingw else ifneq (, $(findstring linux, $(SYS))$(findstring gnu, $(SYS))) DAEMON_SRC += $(DAEMON_SRC_DIR)/UnixDaemon.cpp include Makefile.linux else ifneq (, $(findstring freebsd, $(SYS))$(findstring openbsd, $(SYS))) DAEMON_SRC += $(DAEMON_SRC_DIR)/UnixDaemon.cpp include Makefile.bsd -else ifneq (, $(findstring mingw, $(SYS))$(findstring cygwin, $(SYS))) - DAEMON_SRC += Win32/DaemonWin32.cpp Win32/Win32Service.cpp Win32/Win32App.cpp - include Makefile.mingw +else ifneq (, $(findstring haiku, $(SYS))) + DAEMON_SRC += $(DAEMON_SRC_DIR)/UnixDaemon.cpp + include Makefile.haiku +else ifneq (, $(findstring solaris, $(SYS))) + DAEMON_SRC += $(DAEMON_SRC_DIR)/UnixDaemon.cpp + include Makefile.solaris else # not supported $(error Not supported platform) endif -ifeq ($(USE_MESHNET),yes) - NEEDED_CXXFLAGS += -DMESHNET +INCFLAGS += -I$(LIB_SRC_DIR) -I$(LIB_CLIENT_SRC_DIR) -I$(LANG_SRC_DIR) +DEFINES += -DOPENSSL_SUPPRESS_DEPRECATED +NEEDED_CXXFLAGS += -MMD -MP + +ifeq ($(USE_GIT_VERSION),yes) + GIT_VERSION := $(shell git describe --tags) + DEFINES += -DGITVER=$(GIT_VERSION) endif -NEEDED_CXXFLAGS += -I$(LIB_SRC_DIR) -I$(LIB_CLIENT_SRC_DIR) +LIB_OBJS += $(patsubst %.cpp,obj/%.o,$(LIB_SRC)) +LIB_CLIENT_OBJS += $(patsubst %.cpp,obj/%.o,$(LIB_CLIENT_SRC)) +LANG_OBJS += $(patsubst %.cpp,obj/%.o,$(LANG_SRC)) +DAEMON_OBJS += $(patsubst %.cpp,obj/%.o,$(DAEMON_SRC)) +WRAP_LIB_OBJS += $(patsubst %.cpp,obj/%.o,$(WRAP_LIB_SRC)) +DEPS += $(LIB_OBJS:.o=.d) $(LIB_CLIENT_OBJS:.o=.d) $(LANG_OBJS:.o=.d) $(DAEMON_OBJS:.o=.d) $(WRAP_LIB_OBJS:.o=.d) -all: mk_obj_dir $(ARLIB) $(ARLIB_CLIENT) $(I2PD) +## Build all code (libi2pd, libi2pdclient, libi2pdlang), link it to .a and build binary +all: $(ARLIB) $(ARLIB_CLIENT) $(ARLIB_LANG) $(I2PD) mk_obj_dir: - @mkdir -p obj - @mkdir -p obj/Win32 @mkdir -p obj/$(LIB_SRC_DIR) @mkdir -p obj/$(LIB_CLIENT_SRC_DIR) + @mkdir -p obj/$(LANG_SRC_DIR) @mkdir -p obj/$(DAEMON_SRC_DIR) + @mkdir -p obj/$(WRAP_SRC_DIR) + @mkdir -p obj/Win32 -api: mk_obj_dir $(SHLIB) $(ARLIB) -api_client: mk_obj_dir $(SHLIB) $(ARLIB) $(SHLIB_CLIENT) $(ARLIB_CLIENT) +api: $(SHLIB) $(ARLIB) +client: $(SHLIB_CLIENT) $(ARLIB_CLIENT) +lang: $(SHLIB_LANG) $(ARLIB_LANG) +api_client: api client lang +wrapper: api_client $(SHLIB_WRAP) $(ARLIB_WRAP) ## NOTE: The NEEDED_CXXFLAGS are here so that CXXFLAGS can be specified at build time ## **without** overwriting the CXXFLAGS which we need in order to build. @@ -76,40 +116,53 @@ api_client: mk_obj_dir $(SHLIB) $(ARLIB) $(SHLIB_CLIENT) $(ARLIB_CLIENT) ## -std=c++11. If you want to remove this variable please do so in a way that allows setting ## custom FLAGS to work at build-time. -deps: mk_obj_dir - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) -MM *.cpp > $(DEPS) - @sed -i -e '/\.o:/ s/^/obj\//' $(DEPS) - -obj/%.o: %.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(CPU_FLAGS) -c -o $@ $< +obj/%.o: %.cpp | mk_obj_dir + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(DEFINES) $(INCFLAGS) -c -o $@ $< # '-' is 'ignore if missing' on first run -include $(DEPS) -DAEMON_OBJS += $(patsubst %.cpp,obj/%.o,$(DAEMON_SRC)) -$(I2PD): $(DAEMON_OBJS) $(ARLIB) $(ARLIB_CLIENT) - $(CXX) -o $@ $^ $(LDFLAGS) $(LDLIBS) +$(I2PD): $(DAEMON_OBJS) $(ARLIB) $(ARLIB_CLIENT) $(ARLIB_LANG) + $(CXX) $(DEFINES) $(LDFLAGS) -o $@ $^ $(LDLIBS) -$(SHLIB): $(patsubst %.cpp,obj/%.o,$(LIB_SRC)) +$(SHLIB): $(LIB_OBJS) ifneq ($(USE_STATIC),yes) - $(CXX) $(LDFLAGS) $(LDLIBS) -shared -o $@ $^ + $(CXX) $(LDFLAGS) -shared -o $@ $^ $(LDLIBS) endif -$(SHLIB_CLIENT): $(patsubst %.cpp,obj/%.o,$(LIB_CLIENT_SRC)) - $(CXX) $(LDFLAGS) $(LDLIBS) -shared -o $@ $^ +$(SHLIB_CLIENT): $(LIB_CLIENT_OBJS) $(SHLIB) $(SHLIB_LANG) +ifneq ($(USE_STATIC),yes) + $(CXX) $(LDFLAGS) -shared -o $@ $^ $(LDLIBS) $(SHLIB) $(SHLIB_LANG) +endif -$(ARLIB): $(patsubst %.cpp,obj/%.o,$(LIB_SRC)) +$(SHLIB_WRAP): $(WRAP_LIB_OBJS) +ifneq ($(USE_STATIC),yes) + $(CXX) $(LDFLAGS) -shared -o $@ $^ $(LDLIBS) +endif + +$(SHLIB_LANG): $(LANG_OBJS) +ifneq ($(USE_STATIC),yes) + $(CXX) $(LDFLAGS) -shared -o $@ $^ $(LDLIBS) +endif + +$(ARLIB): $(LIB_OBJS) $(AR) -r $@ $^ -$(ARLIB_CLIENT): $(patsubst %.cpp,obj/%.o,$(LIB_CLIENT_SRC)) +$(ARLIB_CLIENT): $(LIB_CLIENT_OBJS) + $(AR) -r $@ $^ + +$(ARLIB_WRAP): $(WRAP_LIB_OBJS) + $(AR) -r $@ $^ + +$(ARLIB_LANG): $(LANG_OBJS) $(AR) -r $@ $^ clean: $(RM) -r obj $(RM) -r docs/generated - $(RM) $(I2PD) $(SHLIB) $(ARLIB) $(SHLIB_CLIENT) $(ARLIB_CLIENT) + $(RM) $(I2PD) $(SHLIB) $(ARLIB) $(SHLIB_CLIENT) $(ARLIB_CLIENT) $(SHLIB_LANG) $(ARLIB_LANG) $(SHLIB_WRAP) $(ARLIB_WRAP) -strip: $(I2PD) $(SHLIB_CLIENT) $(SHLIB) +strip: $(I2PD) $(SHLIB) $(SHLIB_CLIENT) $(SHLIB_LANG) strip $^ LATEST_TAG=$(shell git describe --tags --abbrev=0 openssl) @@ -127,11 +180,13 @@ doxygen: .PHONY: all .PHONY: clean -.PHONY: deps .PHONY: doxygen .PHONY: dist .PHONY: last-dist .PHONY: api .PHONY: api_client +.PHONY: client +.PHONY: lang .PHONY: mk_obj_dir .PHONY: install +.PHONY: strip diff --git a/Makefile.bsd b/Makefile.bsd index 39e5651a..1c911802 100644 --- a/Makefile.bsd +++ b/Makefile.bsd @@ -1,12 +1,22 @@ CXX = clang++ CXXFLAGS ?= ${CXX_DEBUG} -Wall -Wextra -Wno-unused-parameter -pedantic -Wno-misleading-indentation +DEFINES = -D_GLIBCXX_USE_NANOSLEEP=1 +INCFLAGS = -I/usr/include/ -I/usr/local/include/ +LDFLAGS = ${LD_DEBUG} -Wl,-rpath,/usr/local/lib -L/usr/local/lib +LDLIBS = -lssl -lcrypto -lz -lpthread -lboost_system -lboost_program_options + ## NOTE: NEEDED_CXXFLAGS is here so that custom CXXFLAGS can be specified at build time ## **without** overwriting the CXXFLAGS which we need in order to build. ## For example, when adding 'hardening flags' to the build ## (e.g. -fstack-protector-strong -Wformat -Werror=format-security), we do not want to remove ## -std=c++11. If you want to remove this variable please do so in a way that allows setting ## custom FLAGS to work at build-time. -NEEDED_CXXFLAGS = -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1 -INCFLAGS = -I/usr/include/ -I/usr/local/include/ -LDFLAGS = ${LD_DEBUG} -Wl,-rpath,/usr/local/lib -L/usr/local/lib -LDLIBS = -lcrypto -lssl -lz -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread +CXXVER := $(shell $(CXX) -dumpversion|cut -c 1-2) +ifeq (${CXXVER}, "4.") # older clang always returned 4.2.1 + $(error Compiler too old) +else ifeq (${CXXVER}, ${filter ${CXXVER},16 17 18 19}) # clang 16 - 19 + NEEDED_CXXFLAGS = -std=c++20 +else + NEEDED_CXXFLAGS = -std=c++17 +endif + diff --git a/Makefile.haiku b/Makefile.haiku new file mode 100644 index 00000000..eb56a207 --- /dev/null +++ b/Makefile.haiku @@ -0,0 +1,14 @@ +ifeq ($(shell $(CXX) -dumpmachine | cut -c 1-4), i586) +CXX = g++-x86 +else +CXX = g++ +endif +CXXFLAGS := -Wall -std=c++20 +INCFLAGS = -I/system/develop/headers +DEFINES = -D_DEFAULT_SOURCE -D_GNU_SOURCE +LDLIBS = -lbe -lbsd -lnetwork -lz -lssl -lcrypto -lboost_program_options -lpthread + +ifeq ($(USE_UPNP),yes) + DEFINES += -DUSE_UPNP + LDLIBS += -lminiupnpc +endif diff --git a/Makefile.homebrew b/Makefile.homebrew index 64301c02..706f9811 100644 --- a/Makefile.homebrew +++ b/Makefile.homebrew @@ -1,54 +1,49 @@ # root directory holding homebrew -BREWROOT = /usr/local +BREWROOT = /opt/homebrew BOOSTROOT = ${BREWROOT}/opt/boost SSLROOT = ${BREWROOT}/opt/openssl@1.1 UPNPROOT = ${BREWROOT}/opt/miniupnpc -CXXFLAGS = ${CXX_DEBUG} -Wall -std=c++11 -DMAC_OSX -Wno-overloaded-virtual -INCFLAGS = -I${SSLROOT}/include -I${BOOSTROOT}/include -LDFLAGS = ${LD_DEBUG} -ifndef TRAVIS - CXX = clang++ -endif +CXXFLAGS ?= ${CXX_DEBUG} -Wall -Wno-overloaded-virtual +NEEDED_CXXFLAGS ?= -std=c++17 +INCFLAGS ?= -I${SSLROOT}/include -I${BOOSTROOT}/include +LDFLAGS ?= ${LD_DEBUG} +DEFINES += -DMAC_OSX ifeq ($(USE_STATIC),yes) - LDLIBS = -lz ${SSLROOT}/lib/libcrypto.a ${SSLROOT}/lib/libssl.a ${BOOSTROOT}/lib/libboost_system.a ${BOOSTROOT}/lib/libboost_date_time.a ${BOOSTROOT}/lib/libboost_filesystem.a ${BOOSTROOT}/lib/libboost_program_options.a -lpthread + LDLIBS = -lz ${SSLROOT}/lib/libcrypto.a ${SSLROOT}/lib/libssl.a ${BOOSTROOT}/lib/libboost_system.a ${BOOSTROOT}/lib/libboost_filesystem.a ${BOOSTROOT}/lib/libboost_program_options.a +ifeq ($(USE_UPNP),yes) + LDLIBS += ${UPNPROOT}/lib/libminiupnpc.a +endif + LDLIBS += -lpthread -ldl else LDFLAGS += -L${SSLROOT}/lib -L${BOOSTROOT}/lib - LDLIBS = -lz -lcrypto -lssl -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread + LDLIBS = -lz -lssl -lcrypto -lboost_system -lboost_filesystem -lboost_program_options -lpthread +ifeq ($(USE_UPNP),yes) + LDFLAGS += -L${UPNPROOT}/lib + LDLIBS += -lminiupnpc +endif endif ifeq ($(USE_UPNP),yes) - LDFLAGS += -ldl - CXXFLAGS += -DUSE_UPNP + DEFINES += -DUSE_UPNP INCFLAGS += -I${UPNPROOT}/include - ifeq ($(USE_STATIC),yes) - LDLIBS += ${UPNPROOT}/lib/libminiupnpc.a - else - LDFLAGS += -L${UPNPROOT}/lib - LDLIBS += -lminiupnpc - endif -endif - -# OSX Notes -# http://www.hutsby.net/2011/08/macs-with-aes-ni.html -# Seems like all recent Mac's have AES-NI, after firmware upgrade 2.2 -# Found no good way to detect it from command line. TODO: Might be some osx sysinfo magic -ifeq ($(USE_AESNI),yes) - CXXFLAGS += -maes -endif -ifeq ($(USE_AVX),1) - CXXFLAGS += -mavx endif install: all - install -d ${PREFIX}/bin ${PREFIX}/etc/i2pd ${PREFIX}/share/doc/i2pd ${PREFIX}/share/i2pd ${PREFIX}/share/man/man1 ${PREFIX}/var/lib/i2pd - install -m 755 ${I2PD} ${PREFIX}/bin/ + install -d ${PREFIX}/bin + install -m 755 ${I2PD} ${PREFIX}/bin + install -d ${PREFIX}/etc ${PREFIX}/etc/i2pd ${PREFIX}/etc/i2pd/tunnels.conf.d install -m 644 contrib/i2pd.conf contrib/subscriptions.txt contrib/tunnels.conf ${PREFIX}/etc/i2pd - @cp -R contrib/certificates ${PREFIX}/share/i2pd/ + install -d ${PREFIX}/share ${PREFIX}/share/doc ${PREFIX}/share/doc/i2pd install -m 644 ChangeLog LICENSE README.md contrib/i2pd.conf contrib/subscriptions.txt contrib/tunnels.conf ${PREFIX}/share/doc/i2pd - @gzip debian/i2pd.1 && install debian/i2pd.1.gz ${PREFIX}/share/man/man1 - @ln -sf ${PREFIX}/share/i2pd/certificates ${PREFIX}/var/lib/i2pd/ + install -d ${PREFIX}/share/i2pd + @cp -R contrib/certificates ${PREFIX}/share/i2pd/ + install -d ${PREFIX}/share/man ${PREFIX}/share/man/man1 + @gzip -kf debian/i2pd.1 && install debian/i2pd.1.gz ${PREFIX}/share/man/man1 + install -d ${PREFIX}/var ${PREFIX}/var/lib ${PREFIX}/var/lib/i2pd + @ln -sf ${PREFIX}/share/i2pd/certificates ${PREFIX}/var/lib/i2pd/certificates + @ln -sf ${PREFIX}/etc/i2pd/tunnels.conf.d ${PREFIX}/var/lib/i2pd/tunnels.d @ln -sf ${PREFIX}/etc/i2pd/i2pd.conf ${PREFIX}/var/lib/i2pd/i2pd.conf @ln -sf ${PREFIX}/etc/i2pd/subscriptions.txt ${PREFIX}/var/lib/i2pd/subscriptions.txt - @ln -sf ${PREFIX}/etc/i2pd/tunnels.conf ${PREFIX}/var/lib/i2pd/tunnels.conf \ No newline at end of file + @ln -sf ${PREFIX}/etc/i2pd/tunnels.conf ${PREFIX}/var/lib/i2pd/tunnels.conf diff --git a/Makefile.linux b/Makefile.linux index d1ccf143..4ea39e22 100644 --- a/Makefile.linux +++ b/Makefile.linux @@ -1,5 +1,5 @@ # set defaults instead redefine -CXXFLAGS ?= ${CXX_DEBUG} -Wall -Wextra -Wno-unused-parameter -pedantic -Wno-misleading-indentation +CXXFLAGS ?= ${CXX_DEBUG} -Wall -Wextra -Wno-unused-parameter -pedantic -Wno-psabi LDFLAGS ?= ${LD_DEBUG} ## NOTE: The NEEDED_CXXFLAGS are here so that custom CXXFLAGS can be specified at build time @@ -9,19 +9,17 @@ LDFLAGS ?= ${LD_DEBUG} ## -std=c++11. If you want to remove this variable please do so in a way that allows setting ## custom FDLAGS to work at build-time. -# detect proper flag for c++11 support by compilers +# detect proper flag for c++17 support by compilers CXXVER := $(shell $(CXX) -dumpversion) ifeq ($(shell expr match $(CXX) 'clang'),5) - NEEDED_CXXFLAGS += -std=c++11 -else ifeq ($(shell expr match ${CXXVER} "4\.[0-9][0-9]"),4) # gcc >= 4.10 - NEEDED_CXXFLAGS += -std=c++11 -else ifeq ($(shell expr match ${CXXVER} "4\.[7-9]"),3) # >= 4.7 - NEEDED_CXXFLAGS += -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1 -else ifeq ($(shell expr match ${CXXVER} "4\.6"),3) # = 4.6 - NEEDED_CXXFLAGS += -std=c++0x -else ifeq ($(shell expr match ${CXXVER} "[5-9]"),1) # gcc >= 5 - NEEDED_CXXFLAGS += -std=c++11 - LDLIBS = -latomic + NEEDED_CXXFLAGS += -std=c++17 +else ifeq ($(shell expr match ${CXXVER} "[8-9]"),1) # gcc 8 - 9 + NEEDED_CXXFLAGS += -std=c++17 + LDLIBS = -lboost_system -lstdc++fs +else ifeq ($(shell expr match ${CXXVER} "1[0-2]"),2) # gcc 10 - 12 + NEEDED_CXXFLAGS += -std=c++17 +else ifeq ($(shell expr match ${CXXVER} "1[3-9]"),2) # gcc 13+ + NEEDED_CXXFLAGS += -std=c++20 else # not supported $(error Compiler too old) endif @@ -32,45 +30,41 @@ ifeq ($(USE_STATIC),yes) # NOTE: on glibc you will get this warning: # Using 'getaddrinfo' in statically linked applications requires at runtime # the shared libraries from the glibc version used for linking - LIBDIR := /usr/lib - LDLIBS += $(LIBDIR)/libboost_system.a - LDLIBS += $(LIBDIR)/libboost_date_time.a - LDLIBS += $(LIBDIR)/libboost_filesystem.a + LIBDIR := /usr/lib/$(SYS) LDLIBS += $(LIBDIR)/libboost_program_options.a LDLIBS += $(LIBDIR)/libssl.a LDLIBS += $(LIBDIR)/libcrypto.a LDLIBS += $(LIBDIR)/libz.a - LDLIBS += -lpthread -static-libstdc++ -static-libgcc -lrt -ldl - USE_AESNI := no -else - LDLIBS += -lcrypto -lssl -lz -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread -endif - -# UPNP Support (miniupnpc 1.5 and higher) ifeq ($(USE_UPNP),yes) - CXXFLAGS += -DUSE_UPNP -ifeq ($(USE_STATIC),yes) LDLIBS += $(LIBDIR)/libminiupnpc.a +endif + LDLIBS += -lpthread -ldl else + LDLIBS += -lssl -lcrypto -lz -lboost_program_options -lpthread -latomic +ifeq ($(USE_UPNP),yes) LDLIBS += -lminiupnpc endif endif -ifeq ($(USE_AESNI),yes) -#check if AES-NI is supported by CPU -ifneq ($(shell $(GREP) -c aes /proc/cpuinfo),0) - machine := $(shell uname -m) - ifeq ($(machine), aarch64) - CXXFLAGS += -DARM64AES - else - CPU_FLAGS += -maes - endif -endif +# UPNP Support (miniupnpc 1.5 and higher) +ifeq ($(USE_UPNP),yes) + DEFINES += -DUSE_UPNP endif -ifeq ($(USE_AVX),yes) -#check if AVX supported by CPU -ifneq ($(shell $(GREP) -c avx /proc/cpuinfo),0) - CPU_FLAGS += -mavx -endif -endif +install: all + install -d ${PREFIX}/bin + install -m 755 ${I2PD} ${PREFIX}/bin + install -d ${PREFIX}/etc ${PREFIX}/etc/i2pd ${PREFIX}/etc/i2pd/tunnels.conf.d + install -m 644 contrib/i2pd.conf contrib/subscriptions.txt contrib/tunnels.conf ${PREFIX}/etc/i2pd + install -d ${PREFIX}/share ${PREFIX}/share/doc ${PREFIX}/share/doc/i2pd + install -m 644 ChangeLog LICENSE README.md contrib/i2pd.conf contrib/subscriptions.txt contrib/tunnels.conf ${PREFIX}/share/doc/i2pd + install -d ${PREFIX}/share/i2pd + @cp -R contrib/certificates ${PREFIX}/share/i2pd/ + install -d ${PREFIX}/share/man ${PREFIX}/share/man/man1 + @gzip -kf debian/i2pd.1 && install debian/i2pd.1.gz ${PREFIX}/share/man/man1 + install -d ${PREFIX}/var ${PREFIX}/var/lib ${PREFIX}/var/lib/i2pd + @ln -sf ${PREFIX}/share/i2pd/certificates ${PREFIX}/var/lib/i2pd/certificates + @ln -sf ${PREFIX}/etc/i2pd/tunnels.conf.d ${PREFIX}/var/lib/i2pd/tunnels.d + @ln -sf ${PREFIX}/etc/i2pd/i2pd.conf ${PREFIX}/var/lib/i2pd/i2pd.conf + @ln -sf ${PREFIX}/etc/i2pd/subscriptions.txt ${PREFIX}/var/lib/i2pd/subscriptions.txt + @ln -sf ${PREFIX}/etc/i2pd/tunnels.conf ${PREFIX}/var/lib/i2pd/tunnels.conf diff --git a/Makefile.mingw b/Makefile.mingw index e2f9e857..32d60764 100644 --- a/Makefile.mingw +++ b/Makefile.mingw @@ -1,56 +1,50 @@ -USE_WIN32_APP=yes -CXX = g++ -WINDRES = windres -CXXFLAGS := ${CXX_DEBUG} -D_MT -DWIN32 -D_WINDOWS -DWIN32_LEAN_AND_MEAN -NEEDED_CXXFLAGS = -std=c++11 -INCFLAGS = -Idaemon -I. -LDFLAGS := ${LD_DEBUG} -Wl,-Bstatic -static-libgcc -static-libstdc++ +# Build application with GUI (tray, main window) +USE_WIN32_APP := yes -# Boost libraries suffix -BOOST_SUFFIX = -mt +WINDRES = windres + +CXXFLAGS := $(CXX_DEBUG) -fPIC -msse +INCFLAGS := -I$(DAEMON_SRC_DIR) -IWin32 +LDFLAGS := ${LD_DEBUG} -static -fPIC -msse + +NEEDED_CXXFLAGS += -std=c++20 +DEFINES += -DWIN32_LEAN_AND_MEAN # UPNP Support ifeq ($(USE_UPNP),yes) - CXXFLAGS += -DUSE_UPNP -DMINIUPNP_STATICLIB + DEFINES += -DUSE_UPNP -DMINIUPNP_STATICLIB LDLIBS = -lminiupnpc endif +ifeq ($(USE_WINXP_FLAGS), yes) + DEFINES += -DWINVER=0x0501 -D_WIN32_WINNT=0x0501 +endif + LDLIBS += \ - -lboost_system$(BOOST_SUFFIX) \ - -lboost_date_time$(BOOST_SUFFIX) \ - -lboost_filesystem$(BOOST_SUFFIX) \ - -lboost_program_options$(BOOST_SUFFIX) \ - -lssl \ - -lcrypto \ - -lz \ + $(MINGW_PREFIX)/lib/libboost_filesystem-mt.a \ + $(MINGW_PREFIX)/lib/libboost_program_options-mt.a \ + $(MINGW_PREFIX)/lib/libssl.a \ + $(MINGW_PREFIX)/lib/libcrypto.a \ + $(MINGW_PREFIX)/lib/libz.a \ -lwsock32 \ -lws2_32 \ - -lgdi32 \ -liphlpapi \ - -lstdc++ \ + -lcrypt32 \ + -lgdi32 \ + -lole32 \ + -luuid \ -lpthread ifeq ($(USE_WIN32_APP), yes) - CXXFLAGS += -DWIN32_APP + DEFINES += -DWIN32_APP LDFLAGS += -mwindows DAEMON_RC += Win32/Resource.rc DAEMON_OBJS += $(patsubst %.rc,obj/%.o,$(DAEMON_RC)) endif -# don't change following line to ifeq ($(USE_AESNI),yes) !!! -ifeq ($(USE_AESNI),1) - CPU_FLAGS += -maes -else - CPU_FLAGS += -msse -endif - -ifeq ($(USE_AVX),1) - CPU_FLAGS += -mavx -endif - ifeq ($(USE_ASLR),yes) LDFLAGS += -Wl,--nxcompat -Wl,--high-entropy-va -Wl,--dynamicbase,--export-all-symbols endif -obj/%.o : %.rc - $(WINDRES) -i $< -o $@ +obj/%.o : %.rc | mk_obj_dir + $(WINDRES) $(DEFINES) $(INCFLAGS) --preprocessor-arg=-MMD --preprocessor-arg=-MP --preprocessor-arg=-MF$@.d -i $< -o $@ diff --git a/Makefile.osx b/Makefile.osx index d673d3ef..52282307 100644 --- a/Makefile.osx +++ b/Makefile.osx @@ -1,17 +1,20 @@ CXX = clang++ -CXXFLAGS := ${CXX_DEBUG} -Wall -std=c++11 -DMAC_OSX +CXXFLAGS := ${CXX_DEBUG} -Wall -std=c++17 INCFLAGS = -I/usr/local/include +DEFINES := -DMAC_OSX LDFLAGS := -Wl,-rpath,/usr/local/lib -L/usr/local/lib +LDFLAGS += -Wl,-dead_strip +LDFLAGS += -Wl,-dead_strip_dylibs ifeq ($(USE_STATIC),yes) - LDLIBS = -lz /usr/local/lib/libcrypto.a /usr/local/lib/libssl.a /usr/local/lib/libboost_system.a /usr/local/lib/libboost_date_time.a /usr/local/lib/libboost_filesystem.a /usr/local/lib/libboost_program_options.a -lpthread + LDLIBS = -lz /usr/local/lib/libssl.a /usr/local/lib/libcrypto.a /usr/local/lib/libboost_system.a /usr/local/lib/libboost_filesystem.a /usr/local/lib/libboost_program_options.a -lpthread else - LDLIBS = -lz -lcrypto -lssl -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread + LDLIBS = -lz -lssl -lcrypto -lboost_system -lboost_filesystem -lboost_program_options -lpthread endif ifeq ($(USE_UPNP),yes) LDFLAGS += -ldl - CXXFLAGS += -DUSE_UPNP + DEFINES += -DUSE_UPNP ifeq ($(USE_STATIC),yes) LDLIBS += /usr/local/lib/libminiupnpc.a else @@ -19,12 +22,8 @@ ifeq ($(USE_UPNP),yes) endif endif -ifeq ($(USE_AESNI),1) - CXXFLAGS += -maes -else +OSARCH = $(shell uname -p) + +ifneq ($(OSARCH),powerpc) CXXFLAGS += -msse endif - -ifeq ($(USE_AVX),1) - CXXFLAGS += -mavx -endif diff --git a/Makefile.solaris b/Makefile.solaris new file mode 100644 index 00000000..77d34114 --- /dev/null +++ b/Makefile.solaris @@ -0,0 +1,9 @@ +CXX = g++ +INCFLAGS = -I/usr/openssl/3/include +CXXFLAGS := -Wall -std=c++20 +LDLIBS = -L/usr/openssl/3/lib/64 -lssl -lcrypto -lboost_program_options -lz -lpthread -lsocket + +ifeq ($(USE_UPNP),yes) + DEFINES += -DUSE_UPNP + LDLIBS += -lminiupnpc +endif \ No newline at end of file diff --git a/README.md b/README.md index 540e3bed..ce25c8f2 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,11 @@ -![GitHub release](https://img.shields.io/github/release/PurpleI2P/i2pd.svg?label=latest%20release) -![GitHub](https://img.shields.io/github/license/PurpleI2P/i2pd.svg) +[![GitHub release](https://img.shields.io/github/release/PurpleI2P/i2pd.svg?label=latest%20release)](https://github.com/PurpleI2P/i2pd/releases/latest) +[![Snapcraft release](https://snapcraft.io/i2pd/badge.svg)](https://snapcraft.io/i2pd) +[![License](https://img.shields.io/github/license/PurpleI2P/i2pd.svg)](https://github.com/PurpleI2P/i2pd/blob/openssl/LICENSE) +[![Packaging status](https://repology.org/badge/tiny-repos/i2pd.svg)](https://repology.org/project/i2pd/versions) +[![Docker Pulls](https://img.shields.io/docker/pulls/purplei2p/i2pd)](https://hub.docker.com/r/purplei2p/i2pd) +[![Crowdin](https://badges.crowdin.net/i2pd/localized.svg)](https://crowdin.com/project/i2pd) + +*note: i2pd for Android can be found in [i2pd-android](https://github.com/PurpleI2P/i2pd-android) repository and with Qt GUI in [i2pd-qt](https://github.com/PurpleI2P/i2pd-qt) repository* i2pd ==== @@ -50,6 +56,8 @@ Building See [documentation](https://i2pd.readthedocs.io/en/latest/) for how to build i2pd from source on your OS. +note: i2pd with Qt GUI can be found in [i2pd-qt](https://github.com/PurpleI2P/i2pd-qt) repository and for android in [i2pd-android](https://github.com/PurpleI2P/i2pd-android) repository. + Build instructions: @@ -61,13 +69,15 @@ Build instructions: **Supported systems:** -* GNU/Linux - [![Build Status](https://travis-ci.org/PurpleI2P/i2pd.svg?branch=openssl)](https://travis-ci.org/PurpleI2P/i2pd) -* Windows - [![Build status](https://ci.appveyor.com/api/projects/status/1908qe4p48ff1x23?svg=true)](https://ci.appveyor.com/project/PurpleI2P/i2pd) -* Mac OS X - [![Build Status](https://travis-ci.org/PurpleI2P/i2pd.svg?branch=openssl)](https://travis-ci.org/PurpleI2P/i2pd) -* CentOS / Fedora / Mageia - [![Build Status](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/status_image/last_build.png)](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/) -* Docker image - [![Build Status](https://dockerbuildbadges.quelltext.eu/status.svg?organization=meeh&repository=i2pd)](https://hub.docker.com/r/meeh/i2pd/builds/) -* FreeBSD -* Android +* GNU/Linux (Debian, Ubuntu, etc) - [![Build on Ubuntu](https://github.com/PurpleI2P/i2pd/actions/workflows/build.yml/badge.svg)](https://github.com/PurpleI2P/i2pd/actions/workflows/build.yml) +* CentOS, Fedora, Mageia - [![Build Status](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/status_image/last_build.png)](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/) +* Alpine, ArchLinux, openSUSE, Gentoo, etc. +* Windows - [![Build on Windows](https://github.com/PurpleI2P/i2pd/actions/workflows/build-windows.yml/badge.svg)](https://github.com/PurpleI2P/i2pd/actions/workflows/build-windows.yml) +* Mac OS - [![Build on OSX](https://github.com/PurpleI2P/i2pd/actions/workflows/build-osx.yml/badge.svg)](https://github.com/PurpleI2P/i2pd/actions/workflows/build-osx.yml) +* Docker image - [![Build containers](https://github.com/PurpleI2P/i2pd/actions/workflows/docker.yml/badge.svg)](https://github.com/PurpleI2P/i2pd/actions/workflows/docker.yml) +* Snap - [![i2pd](https://snapcraft.io/i2pd/badge.svg)](https://snapcraft.io/i2pd) [![i2pd](https://snapcraft.io/i2pd/trending.svg?name=0)](https://snapcraft.io/i2pd) +* FreeBSD - [![Build on FreeBSD](https://github.com/PurpleI2P/i2pd/actions/workflows/build-freebsd.yml/badge.svg)](https://github.com/PurpleI2P/i2pd/actions/workflows/build-freebsd.yml) +* Android - [![Android CI](https://github.com/PurpleI2P/i2pd-android/actions/workflows/android.yml/badge.svg)](https://github.com/PurpleI2P/i2pd-android/actions/workflows/android.yml) * iOS Using i2pd @@ -76,15 +86,36 @@ Using i2pd See [documentation](https://i2pd.readthedocs.io/en/latest/user-guide/run/) and [example config file](https://github.com/PurpleI2P/i2pd/blob/openssl/contrib/i2pd.conf). +Localization +------------ + +You can help us with translation i2pd to your language using Crowdin platform! +Translation project can be found [here](https://crowdin.com/project/i2pd). + +New languages can be requested on project's [discussion page](https://crowdin.com/project/i2pd/discussions). + +Current status: [![Crowdin](https://badges.crowdin.net/i2pd/localized.svg)](https://crowdin.com/project/i2pd) + Donations --------- -BTC: 3MDoGJW9TLMTCDGrR9bLgWXfm6sjmgy86f -LTC: LKQirrYrDeTuAPnpYq5y7LVKtywfkkHi59 -ETH: 0x9e5bac70d20d1079ceaa111127f4fb3bccce379d -DASH: Xw8YUrQpYzP9tZBmbjqxS3M97Q7v3vJKUF -ZEC: t1cTckLuXsr1dwVrK4NDzfhehss4NvMadAJ -GST: GbD2JSQHBHCKLa9WTHmigJRpyFgmBj4woG +**E-Mail**: ```i2porignal at yandex.com``` + +**BTC**: ```3MDoGJW9TLMTCDGrR9bLgWXfm6sjmgy86f``` + +**LTC**: ```LKQirrYrDeTuAPnpYq5y7LVKtywfkkHi59``` + +**ETH**: ```0x9e5bac70d20d1079ceaa111127f4fb3bccce379d``` + +**GST**: ```GbD2JSQHBHCKLa9WTHmigJRpyFgmBj4woG``` + +**DASH**: ```Xw8YUrQpYzP9tZBmbjqxS3M97Q7v3vJKUF``` + +**ZEC**: ```t1cTckLuXsr1dwVrK4NDzfhehss4NvMadAJ``` + +**ANC**: ```AQJYweYYUqM1nVfLqfoSMpUMfzxvS4Xd7z``` + +**XMR**: ```497pJc7X4xqKvcLBLpSUtRgWqMMyo24u4btCos3cak6gbMkpobgSU6492ztUcUBghyeHpYeczB55s38NpuHoH5WGNSPDRMH``` License ------- diff --git a/Win32/DaemonWin32.cpp b/Win32/DaemonWin32.cpp index 9fffe7fb..48f65c27 100644 --- a/Win32/DaemonWin32.cpp +++ b/Win32/DaemonWin32.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include "Config.h" @@ -6,9 +14,10 @@ #include "Log.h" #ifdef _WIN32 -#include "Win32/Win32Service.h" +#include "Win32Service.h" #ifdef WIN32_APP -#include "Win32/Win32App.h" +#include +#include "Win32App.h" #endif namespace i2p @@ -20,46 +29,30 @@ namespace util setlocale(LC_CTYPE, ""); SetConsoleCP(1251); SetConsoleOutputCP(1251); - setlocale(LC_ALL, "Russian"); + //setlocale(LC_ALL, "Russian"); setlocale(LC_TIME, "C"); + i2p::log::SetThrowFunction ([](const std::string& s) + { + MessageBox(0, TEXT(s.c_str ()), TEXT("i2pd"), MB_ICONERROR | MB_TASKMODAL | MB_OK ); + } + ); + if (!Daemon_Singleton::init(argc, argv)) return false; - std::string serviceControl; i2p::config::GetOption("svcctl", serviceControl); - if (serviceControl == "install") - { - LogPrint(eLogInfo, "WinSVC: installing ", SERVICE_NAME, " as service"); - InstallService( - SERVICE_NAME, // Name of service - SERVICE_DISPLAY_NAME, // Name to display - SERVICE_START_TYPE, // Service start type - SERVICE_DEPENDENCIES, // Dependencies - SERVICE_ACCOUNT, // Service running account - SERVICE_PASSWORD // Password of the account - ); - return false; - } - else if (serviceControl == "remove") - { - LogPrint(eLogInfo, "WinSVC: uninstalling ", SERVICE_NAME, " service"); - UninstallService(SERVICE_NAME); - return false; - } - if (isDaemon) { LogPrint(eLogDebug, "Daemon: running as service"); I2PService service((PSTR)SERVICE_NAME); if (!I2PService::Run(service)) { - LogPrint(eLogError, "Daemon: Service failed to run w/err 0x%08lx\n", GetLastError()); + LogPrint(eLogCritical, "Daemon: Service failed to run w/err 0x%08lx\n", GetLastError()); return false; } return false; } - else - LogPrint(eLogDebug, "Daemon: running as user"); + return true; } @@ -68,13 +61,10 @@ namespace util setlocale(LC_CTYPE, ""); SetConsoleCP(1251); SetConsoleOutputCP(1251); - setlocale(LC_ALL, "Russian"); + //setlocale(LC_ALL, "Russian"); setlocale(LC_TIME, "C"); #ifdef WIN32_APP - if (!i2p::win32::StartWin32App ()) return false; - - // override log - i2p::config::SetOption("log", std::string ("file")); + if (!i2p::win32::StartWin32App (isDaemon)) return false; #endif bool ret = Daemon_Singleton::start(); if (ret && i2p::log::Logger().GetLogType() == eLogFile) diff --git a/Win32/Resource.rc b/Win32/Resource.rc index 5d394d1a..c9266b08 100644 --- a/Win32/Resource.rc +++ b/Win32/Resource.rc @@ -1,36 +1,36 @@ -#include "resource.h" - -#define APSTUDIO_READONLY_SYMBOLS -#include "winres.h" -#undef APSTUDIO_READONLY_SYMBOLS - -#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU) -LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US -#pragma code_page(1252) - -#ifdef APSTUDIO_INVOKED -1 TEXTINCLUDE -BEGIN - "resource.h\0" -END - -2 TEXTINCLUDE -BEGIN - "#include ""winres.h""\r\n" - "\0" -END - -3 TEXTINCLUDE -BEGIN - "\r\n" - "\0" -END -#endif // APSTUDIO_INVOKED - -MAINICON ICON "mask.ico" -#endif // English (United States) resources - -#ifndef APSTUDIO_INVOKED -#include "Resource.rc2" -#endif // not APSTUDIO_INVOKED - +#include "resource.h" + +#define APSTUDIO_READONLY_SYMBOLS +#include "winres.h" +#undef APSTUDIO_READONLY_SYMBOLS + +#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU) +LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US +#pragma code_page(1252) + +#ifdef APSTUDIO_INVOKED +1 TEXTINCLUDE +BEGIN + "resource.h\0" +END + +2 TEXTINCLUDE +BEGIN + "#include ""winres.h""\r\n" + "\0" +END + +3 TEXTINCLUDE +BEGIN + "\r\n" + "\0" +END +#endif // APSTUDIO_INVOKED + +MAINICON ICON "mask.ico" +#endif // English (United States) resources + +#ifndef APSTUDIO_INVOKED +#include "Resource.rc2" +#endif // not APSTUDIO_INVOKED + diff --git a/Win32/Resource.rc2 b/Win32/Resource.rc2 index 6a4f481d..32744584 100644 --- a/Win32/Resource.rc2 +++ b/Win32/Resource.rc2 @@ -2,7 +2,7 @@ #error this file is not editable by Microsoft Visual C++ #endif //APSTUDIO_INVOKED -#include "../libi2pd/version.h" +#include "version.h" VS_VERSION_INFO VERSIONINFO FILEVERSION I2PD_VERSION_MAJOR,I2PD_VERSION_MINOR,I2PD_VERSION_MICRO,I2PD_VERSION_PATCH @@ -25,7 +25,7 @@ BEGIN VALUE "FileDescription", "C++ I2P daemon" VALUE "FileVersion", I2PD_VERSION VALUE "InternalName", CODENAME - VALUE "LegalCopyright", "Copyright (C) 2013-2017, The PurpleI2P Project" + VALUE "LegalCopyright", "Copyright (C) 2013-2023, The PurpleI2P Project" VALUE "OriginalFilename", "i2pd" VALUE "ProductName", "Purple I2P" VALUE "ProductVersion", I2P_VERSION diff --git a/Win32/Win32App.cpp b/Win32/Win32App.cpp index 4bf4ab56..0e29c517 100644 --- a/Win32/Win32App.cpp +++ b/Win32/Win32App.cpp @@ -1,454 +1,502 @@ -#include -#include -#include -#include "ClientContext.h" -#include "Config.h" -#include "NetDb.hpp" -#include "RouterContext.h" -#include "Transports.h" -#include "Tunnel.h" -#include "version.h" -#include "resource.h" -#include "Daemon.h" -#include "Win32App.h" -#include - -#if defined(_MSC_VER) && _MSC_VER < 1900 -#define snprintf _snprintf -#endif - -#define ID_ABOUT 2000 -#define ID_EXIT 2001 -#define ID_CONSOLE 2002 -#define ID_APP 2003 -#define ID_GRACEFUL_SHUTDOWN 2004 -#define ID_STOP_GRACEFUL_SHUTDOWN 2005 -#define ID_RELOAD 2006 -#define ID_ACCEPT_TRANSIT 2007 -#define ID_DECLINE_TRANSIT 2008 - -#define ID_TRAY_ICON 2050 -#define WM_TRAYICON (WM_USER + 1) - -#define IDT_GRACEFUL_SHUTDOWN_TIMER 2100 -#define FRAME_UPDATE_TIMER 2101 -#define IDT_GRACEFUL_TUNNELCHECK_TIMER 2102 - -namespace i2p -{ -namespace win32 -{ - static DWORD GracefulShutdownEndtime = 0; - - static void ShowPopupMenu (HWND hWnd, POINT *curpos, int wDefaultItem) - { - HMENU hPopup = CreatePopupMenu(); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_CONSOLE, "Open &console"); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_APP, "Show app"); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_ABOUT, "&About..."); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL); - if(!i2p::context.AcceptsTunnels()) - InsertMenu (hPopup, -1, - i2p::util::DaemonWin32::Instance ().isGraceful ? MF_BYPOSITION | MF_STRING | MF_GRAYED : MF_BYPOSITION | MF_STRING, - ID_ACCEPT_TRANSIT, "Accept &transit"); - else - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_DECLINE_TRANSIT, "Decline &transit"); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_RELOAD, "&Reload configs"); - if (!i2p::util::DaemonWin32::Instance ().isGraceful) - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_GRACEFUL_SHUTDOWN, "&Graceful shutdown"); - else - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_STOP_GRACEFUL_SHUTDOWN, "Stop &graceful shutdown"); - InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_EXIT, "E&xit"); - SetMenuDefaultItem (hPopup, ID_CONSOLE, FALSE); - SendMessage (hWnd, WM_INITMENUPOPUP, (WPARAM)hPopup, 0); - - POINT p; - if (!curpos) - { - GetCursorPos (&p); - curpos = &p; - } - - WORD cmd = TrackPopupMenu (hPopup, TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD | TPM_NONOTIFY, curpos->x, curpos->y, 0, hWnd, NULL); - SendMessage (hWnd, WM_COMMAND, cmd, 0); - - DestroyMenu(hPopup); - } - - static void AddTrayIcon (HWND hWnd) - { - NOTIFYICONDATA nid; - memset(&nid, 0, sizeof(nid)); - nid.cbSize = sizeof(nid); - nid.hWnd = hWnd; - nid.uID = ID_TRAY_ICON; - nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP | NIF_INFO; - nid.uCallbackMessage = WM_TRAYICON; - nid.hIcon = LoadIcon (GetModuleHandle(NULL), MAKEINTRESOURCE (MAINICON)); - strcpy (nid.szTip, "i2pd"); - strcpy (nid.szInfo, "i2pd is starting"); - Shell_NotifyIcon(NIM_ADD, &nid ); - } - - static void RemoveTrayIcon (HWND hWnd) - { - NOTIFYICONDATA nid; - nid.hWnd = hWnd; - nid.uID = ID_TRAY_ICON; - Shell_NotifyIcon (NIM_DELETE, &nid); - } - - static void ShowUptime (std::stringstream& s, int seconds) - { - int num; - - if ((num = seconds / 86400) > 0) { - s << num << " days, "; - seconds -= num * 86400; - } - if ((num = seconds / 3600) > 0) { - s << num << " hours, "; - seconds -= num * 3600; - } - if ((num = seconds / 60) > 0) { - s << num << " min, "; - seconds -= num * 60; - } - s << seconds << " seconds\n"; - } - - template static void ShowTransfered (std::stringstream& s, size transfer) - { - auto bytes = transfer & 0x03ff; - transfer >>= 10; - auto kbytes = transfer & 0x03ff; - transfer >>= 10; - auto mbytes = transfer & 0x03ff; - transfer >>= 10; - auto gbytes = transfer & 0x03ff; - - if (gbytes) - s << gbytes << " GB, "; - if (mbytes) - s << mbytes << " MB, "; - if (kbytes) - s << kbytes << " KB, "; - s << bytes << " Bytes\n"; - } - - static void PrintMainWindowText (std::stringstream& s) - { - s << "\n"; - s << "Status: "; - switch (i2p::context.GetStatus()) - { - case eRouterStatusOK: s << "OK"; break; - case eRouterStatusTesting: s << "Testing"; break; - case eRouterStatusFirewalled: s << "Firewalled"; break; - case eRouterStatusError: - { - switch (i2p::context.GetError()) - { - case eRouterErrorClockSkew: s << "Clock skew"; break; - default: s << "Error"; - } - break; - } - default: s << "Unknown"; - } - s << "; "; - s << "Success Rate: " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate() << "%\n"; - s << "Uptime: "; ShowUptime(s, i2p::context.GetUptime ()); - if (GracefulShutdownEndtime != 0) - { - DWORD GracefulTimeLeft = (GracefulShutdownEndtime - GetTickCount()) / 1000; - s << "Graceful shutdown, time left: "; ShowUptime(s, GracefulTimeLeft); - } - else - s << "\n"; - s << "Inbound: " << i2p::transport::transports.GetInBandwidth() / 1024 << " KiB/s; "; - s << "Outbound: " << i2p::transport::transports.GetOutBandwidth() / 1024 << " KiB/s\n"; - s << "Received: "; ShowTransfered (s, i2p::transport::transports.GetTotalReceivedBytes()); - s << "Sent: "; ShowTransfered (s, i2p::transport::transports.GetTotalSentBytes()); - s << "\n"; - s << "Routers: " << i2p::data::netdb.GetNumRouters () << "; "; - s << "Floodfills: " << i2p::data::netdb.GetNumFloodfills () << "; "; - s << "LeaseSets: " << i2p::data::netdb.GetNumLeaseSets () << "\n"; - s << "Tunnels: "; - s << "In: " << i2p::tunnel::tunnels.CountInboundTunnels() << "; "; - s << "Out: " << i2p::tunnel::tunnels.CountOutboundTunnels() << "; "; - s << "Transit: " << i2p::tunnel::tunnels.CountTransitTunnels() << "\n"; - s << "\n"; - } - - static LRESULT CALLBACK WndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) - { - static UINT s_uTaskbarRestart; - - switch (uMsg) - { - case WM_CREATE: - { - s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated")); - AddTrayIcon (hWnd); - break; - } - case WM_CLOSE: - { - RemoveTrayIcon (hWnd); - KillTimer (hWnd, FRAME_UPDATE_TIMER); - KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER); - KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER); - PostQuitMessage (0); - break; - } - case WM_COMMAND: - { - switch (LOWORD(wParam)) - { - case ID_ABOUT: - { - std::stringstream text; - text << "Version: " << I2PD_VERSION << " " << CODENAME; - MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); - return 0; - } - case ID_EXIT: - { - PostMessage (hWnd, WM_CLOSE, 0, 0); - return 0; - } - case ID_ACCEPT_TRANSIT: - { - i2p::context.SetAcceptsTunnels (true); - std::stringstream text; - text << "I2Pd now accept transit tunnels"; - MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); - return 0; - } - case ID_DECLINE_TRANSIT: - { - i2p::context.SetAcceptsTunnels (false); - std::stringstream text; - text << "I2Pd now decline new transit tunnels"; - MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); - return 0; - } - case ID_GRACEFUL_SHUTDOWN: - { - i2p::context.SetAcceptsTunnels (false); - SetTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER, 10*60*1000, nullptr); // 10 minutes - SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); // check tunnels every second - GracefulShutdownEndtime = GetTickCount() + 10*60*1000; - i2p::util::DaemonWin32::Instance ().isGraceful = true; - return 0; - } - case ID_STOP_GRACEFUL_SHUTDOWN: - { - i2p::context.SetAcceptsTunnels (true); - KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER); - KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER); - GracefulShutdownEndtime = 0; - i2p::util::DaemonWin32::Instance ().isGraceful = false; - return 0; - } - case ID_RELOAD: - { - i2p::client::context.ReloadConfig(); - std::stringstream text; - text << "I2Pd reloading configs..."; - MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); - return 0; - } - case ID_CONSOLE: - { - char buf[30]; - std::string httpAddr; i2p::config::GetOption("http.address", httpAddr); - uint16_t httpPort; i2p::config::GetOption("http.port", httpPort); - snprintf(buf, 30, "http://%s:%d", httpAddr.c_str(), httpPort); - ShellExecute(NULL, "open", buf, NULL, NULL, SW_SHOWNORMAL); - return 0; - } - case ID_APP: - { - ShowWindow(hWnd, SW_SHOW); - SetTimer(hWnd, FRAME_UPDATE_TIMER, 3000, NULL); - return 0; - } - } - break; - } - case WM_SYSCOMMAND: - { - switch (wParam) - { - case SC_MINIMIZE: - { - ShowWindow(hWnd, SW_HIDE); - KillTimer (hWnd, FRAME_UPDATE_TIMER); - return 0; - } - case SC_CLOSE: - { - std::string close; i2p::config::GetOption("close", close); - if (0 == close.compare("ask")) - switch(::MessageBox(hWnd, "Would you like to minimize instead of exiting?" - " You can add 'close' configuration option. Valid values are: ask, minimize, exit.", - "Minimize instead of exiting?", MB_ICONQUESTION | MB_YESNOCANCEL | MB_DEFBUTTON1)) - { - case IDYES: close = "minimize"; break; - case IDNO: close = "exit"; break; - default: return 0; - } - if (0 == close.compare("minimize")) - { - ShowWindow(hWnd, SW_HIDE); - KillTimer (hWnd, FRAME_UPDATE_TIMER); - return 0; - } - if (0 != close.compare("exit")) - { - ::MessageBox(hWnd, close.c_str(), "Unknown close action in config", MB_OK | MB_ICONWARNING); - return 0; - } - } - } - } - case WM_TRAYICON: - { - switch (lParam) - { - case WM_LBUTTONUP: - case WM_RBUTTONUP: - { - SetForegroundWindow (hWnd); - ShowPopupMenu(hWnd, NULL, -1); - PostMessage (hWnd, WM_APP + 1, 0, 0); - break; - } - } - break; - } - case WM_TIMER: - { - switch(wParam) - { - case IDT_GRACEFUL_SHUTDOWN_TIMER: - { - GracefulShutdownEndtime = 0; - PostMessage (hWnd, WM_CLOSE, 0, 0); // exit - return 0; - } - case FRAME_UPDATE_TIMER: - { - InvalidateRect(hWnd, NULL, TRUE); - return 0; - } - case IDT_GRACEFUL_TUNNELCHECK_TIMER: - { - if (i2p::tunnel::tunnels.CountTransitTunnels() == 0) - PostMessage (hWnd, WM_CLOSE, 0, 0); - else - SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); - return 0; - } - } - break; - } - case WM_PAINT: - { - HDC hDC; - PAINTSTRUCT ps; - RECT rp; - HFONT hFont; - std::stringstream s; PrintMainWindowText (s); - hDC = BeginPaint (hWnd, &ps); - GetClientRect(hWnd, &rp); - SetTextColor(hDC, 0x00D43B69); - hFont = CreateFont(18,0,0,0,0,0,0,0,DEFAULT_CHARSET,0,0,0,0,TEXT("Times New Roman")); - SelectObject(hDC,hFont); - DrawText(hDC, TEXT(s.str().c_str()), s.str().length(), &rp, DT_CENTER|DT_VCENTER); - DeleteObject(hFont); - EndPaint(hWnd, &ps); - break; - } - default: - { - if (uMsg == s_uTaskbarRestart) - AddTrayIcon (hWnd); - break; - } - } - return DefWindowProc( hWnd, uMsg, wParam, lParam); - } - - bool StartWin32App () - { - if (FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd"))) - { - MessageBox(NULL, TEXT("I2Pd is running already"), TEXT("Warning"), MB_OK); - return false; - } - // register main window - auto hInst = GetModuleHandle(NULL); - WNDCLASSEX wclx; - memset (&wclx, 0, sizeof(wclx)); - wclx.cbSize = sizeof(wclx); - wclx.style = 0; - wclx.lpfnWndProc = WndProc; - //wclx.cbClsExtra = 0; - //wclx.cbWndExtra = 0; - wclx.hInstance = hInst; - wclx.hIcon = LoadIcon (hInst, MAKEINTRESOURCE(MAINICON)); - wclx.hCursor = LoadCursor (NULL, IDC_ARROW); - //wclx.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); - wclx.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); - wclx.lpszMenuName = NULL; - wclx.lpszClassName = I2PD_WIN32_CLASSNAME; - RegisterClassEx (&wclx); - // create new window - if (!CreateWindow(I2PD_WIN32_CLASSNAME, TEXT("i2pd"), WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, 100, 100, 350, 210, NULL, NULL, hInst, NULL)) - { - MessageBox(NULL, "Failed to create main window", TEXT("Warning!"), MB_ICONERROR | MB_OK | MB_TOPMOST); - return false; - } - return true; - } - - int RunWin32App () - { - MSG msg; - while (GetMessage (&msg, NULL, 0, 0 )) - { - TranslateMessage (&msg); - DispatchMessage (&msg); - } - return msg.wParam; - } - - void StopWin32App () - { - HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); - if (hWnd) - PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_EXIT, 0), 0); - UnregisterClass (I2PD_WIN32_CLASSNAME, GetModuleHandle(NULL)); - } - - bool GracefulShutdown () - { - HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); - if (hWnd) - PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_GRACEFUL_SHUTDOWN, 0), 0); - return hWnd; - } - - bool StopGracefulShutdown () - { - HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); - if (hWnd) - PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_STOP_GRACEFUL_SHUTDOWN, 0), 0); - return hWnd; - } - -} -} +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "ClientContext.h" +#include "Config.h" +#include "NetDb.hpp" +#include "RouterContext.h" +#include "Transports.h" +#include "Tunnel.h" +#include "version.h" +#include "resource.h" +#include "Daemon.h" +#include "Win32App.h" +#include "Win32NetState.h" + +#define ID_ABOUT 2000 +#define ID_EXIT 2001 +#define ID_CONSOLE 2002 +#define ID_APP 2003 +#define ID_GRACEFUL_SHUTDOWN 2004 +#define ID_STOP_GRACEFUL_SHUTDOWN 2005 +#define ID_RELOAD 2006 +#define ID_ACCEPT_TRANSIT 2007 +#define ID_DECLINE_TRANSIT 2008 +#define ID_DATADIR 2009 + +#define ID_TRAY_ICON 2050 +#define WM_TRAYICON (WM_USER + 1) + +#define IDT_GRACEFUL_SHUTDOWN_TIMER 2100 +#define FRAME_UPDATE_TIMER 2101 +#define IDT_GRACEFUL_TUNNELCHECK_TIMER 2102 + +namespace i2p +{ +namespace win32 +{ + DWORD g_GracefulShutdownEndtime = 0; + bool g_isWinService; + + static void ShowPopupMenu (HWND hWnd, POINT *curpos, int wDefaultItem) + { + HMENU hPopup = CreatePopupMenu(); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_CONSOLE, "Open &console"); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_DATADIR, "Open &datadir"); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_APP, "&Show app"); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_ABOUT, "&About..."); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL); + if(!i2p::context.AcceptsTunnels()) + InsertMenu (hPopup, -1, + i2p::util::DaemonWin32::Instance ().isGraceful ? MF_BYPOSITION | MF_STRING | MF_GRAYED : MF_BYPOSITION | MF_STRING, + ID_ACCEPT_TRANSIT, "Accept &transit"); + else + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_DECLINE_TRANSIT, "Decline &transit"); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_RELOAD, "&Reload tunnels config"); + if (!i2p::util::DaemonWin32::Instance ().isGraceful) + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_GRACEFUL_SHUTDOWN, "&Graceful shutdown"); + else + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_STOP_GRACEFUL_SHUTDOWN, "Stop &graceful shutdown"); + InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_EXIT, "E&xit"); + SetMenuDefaultItem (hPopup, ID_CONSOLE, FALSE); + SendMessage (hWnd, WM_INITMENUPOPUP, (WPARAM)hPopup, 0); + + POINT p; + if (!curpos) + { + GetCursorPos (&p); + curpos = &p; + } + + WORD cmd = TrackPopupMenu (hPopup, TPM_LEFTALIGN | TPM_RIGHTBUTTON | TPM_RETURNCMD | TPM_NONOTIFY, curpos->x, curpos->y, 0, hWnd, NULL); + SendMessage (hWnd, WM_COMMAND, cmd, 0); + + DestroyMenu(hPopup); + } + + static void AddTrayIcon (HWND hWnd, bool notify = false) + { + NOTIFYICONDATA nid; + memset(&nid, 0, sizeof(nid)); + nid.cbSize = sizeof(nid); + nid.hWnd = hWnd; + nid.uID = ID_TRAY_ICON; + nid.uFlags = notify ? NIF_ICON | NIF_MESSAGE | NIF_TIP | NIF_INFO : NIF_ICON | NIF_MESSAGE | NIF_TIP; + nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP | NIF_INFO; + nid.uCallbackMessage = WM_TRAYICON; + nid.hIcon = LoadIcon (GetModuleHandle(NULL), MAKEINTRESOURCE (MAINICON)); + strcpy (nid.szTip, "i2pd"); + if (notify) strcpy (nid.szInfo, "i2pd is starting"); + Shell_NotifyIcon(NIM_ADD, &nid ); + } + + static void RemoveTrayIcon (HWND hWnd) + { + NOTIFYICONDATA nid; + nid.hWnd = hWnd; + nid.uID = ID_TRAY_ICON; + Shell_NotifyIcon (NIM_DELETE, &nid); + } + + static void ShowUptime (std::stringstream& s, int seconds) + { + int num; + + if ((num = seconds / 86400) > 0) { + s << num << " days, "; + seconds -= num * 86400; + } + if ((num = seconds / 3600) > 0) { + s << num << " hours, "; + seconds -= num * 3600; + } + if ((num = seconds / 60) > 0) { + s << num << " min, "; + seconds -= num * 60; + } + s << seconds << " seconds\n"; + } + + template static void ShowTransfered (std::stringstream& s, size transfer) + { + auto bytes = transfer & 0x03ff; + transfer >>= 10; + auto kbytes = transfer & 0x03ff; + transfer >>= 10; + auto mbytes = transfer & 0x03ff; + transfer >>= 10; + auto gbytes = transfer; + + if (gbytes) + s << gbytes << " GB, "; + if (mbytes) + s << mbytes << " MB, "; + if (kbytes) + s << kbytes << " KB, "; + s << bytes << " Bytes\n"; + } + + static void ShowNetworkStatus (std::stringstream& s, RouterStatus status, bool testing, RouterError error) + { + switch (status) + { + case eRouterStatusOK: s << "OK"; break; + case eRouterStatusFirewalled: s << "FW"; break; + case eRouterStatusUnknown: s << "Unk"; break; + case eRouterStatusProxy: s << "Proxy"; break; + case eRouterStatusMesh: s << "Mesh"; break; + default: s << "Unk"; + }; + if (testing) + s << " (Test)"; + if (error != eRouterErrorNone) + { + switch (error) + { + case eRouterErrorClockSkew: + s << " - " << tr("Clock skew"); + break; + case eRouterErrorOffline: + s << " - " << tr("Offline"); + break; + case eRouterErrorSymmetricNAT: + s << " - " << tr("Symmetric NAT"); + break; + case eRouterErrorFullConeNAT: + s << " - " << tr("Full cone NAT"); + break; + case eRouterErrorNoDescriptors: + s << " - " << tr("No Descriptors"); + break; + default: ; + } + } + } + + static void PrintMainWindowText (std::stringstream& s) + { + s << "\n"; + s << "Status: "; + ShowNetworkStatus (s, i2p::context.GetStatus (), i2p::context.GetTesting(), i2p::context.GetError ()); + if (i2p::context.SupportsV6 ()) + { + s << " / "; + ShowNetworkStatus (s, i2p::context.GetStatusV6 (), i2p::context.GetTestingV6(), i2p::context.GetErrorV6 ()); + } + s << "; "; + s << "Success Rate: " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate() << "%\n"; + s << "Uptime: "; ShowUptime(s, i2p::context.GetUptime ()); + if (g_GracefulShutdownEndtime != 0) + { + DWORD GracefulTimeLeft = (g_GracefulShutdownEndtime - GetTickCount()) / 1000; + s << "Graceful shutdown, time left: "; ShowUptime(s, GracefulTimeLeft); + } + else + s << "\n"; + s << "Inbound: " << i2p::transport::transports.GetInBandwidth() / 1024 << " KiB/s; "; + s << "Outbound: " << i2p::transport::transports.GetOutBandwidth() / 1024 << " KiB/s\n"; + s << "Received: "; ShowTransfered (s, i2p::transport::transports.GetTotalReceivedBytes()); + s << "Sent: "; ShowTransfered (s, i2p::transport::transports.GetTotalSentBytes()); + s << "\n"; + s << "Routers: " << i2p::data::netdb.GetNumRouters () << "; "; + s << "Floodfills: " << i2p::data::netdb.GetNumFloodfills () << "; "; + s << "LeaseSets: " << i2p::data::netdb.GetNumLeaseSets () << "\n"; + s << "Tunnels: "; + s << "In: " << i2p::tunnel::tunnels.CountInboundTunnels() << "; "; + s << "Out: " << i2p::tunnel::tunnels.CountOutboundTunnels() << "; "; + s << "Transit: " << i2p::tunnel::tunnels.CountTransitTunnels() << "\n"; + s << "\n"; + } + + static LRESULT CALLBACK WndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) + { + static UINT s_uTaskbarRestart; + + switch (uMsg) + { + case WM_CREATE: + { + s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated")); + AddTrayIcon (hWnd, true); + break; + } + case WM_CLOSE: + { + RemoveTrayIcon (hWnd); + KillTimer (hWnd, FRAME_UPDATE_TIMER); + KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER); + KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER); + PostQuitMessage (0); + break; + } + case WM_COMMAND: + { + switch (LOWORD(wParam)) + { + case ID_ABOUT: + { + std::stringstream text; + text << "Version: " << I2PD_VERSION << " " << CODENAME; + MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); + return 0; + } + case ID_EXIT: + { + PostMessage (hWnd, WM_CLOSE, 0, 0); + return 0; + } + case ID_ACCEPT_TRANSIT: + { + i2p::context.SetAcceptsTunnels (true); + std::stringstream text; + text << "I2Pd now accept transit tunnels"; + MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); + return 0; + } + case ID_DECLINE_TRANSIT: + { + i2p::context.SetAcceptsTunnels (false); + std::stringstream text; + text << "I2Pd now decline new transit tunnels"; + MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); + return 0; + } + case ID_GRACEFUL_SHUTDOWN: + { + i2p::context.SetAcceptsTunnels (false); + SetTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER, 10*60*1000, nullptr); // 10 minutes + SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); // check tunnels every second + g_GracefulShutdownEndtime = GetTickCount() + 10*60*1000; + i2p::util::DaemonWin32::Instance ().isGraceful = true; + return 0; + } + case ID_STOP_GRACEFUL_SHUTDOWN: + { + i2p::context.SetAcceptsTunnels (true); + KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER); + KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER); + g_GracefulShutdownEndtime = 0; + i2p::util::DaemonWin32::Instance ().isGraceful = false; + return 0; + } + case ID_RELOAD: + { + i2p::client::context.ReloadConfig(); + std::stringstream text; + text << "I2Pd reloading configs..."; + MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK ); + return 0; + } + case ID_CONSOLE: + { + char buf[30]; + std::string httpAddr; i2p::config::GetOption("http.address", httpAddr); + uint16_t httpPort; i2p::config::GetOption("http.port", httpPort); + snprintf(buf, 30, "http://%s:%d", httpAddr.c_str(), httpPort); + ShellExecute(NULL, "open", buf, NULL, NULL, SW_SHOWNORMAL); + return 0; + } + case ID_APP: + { + ShowWindow(hWnd, SW_SHOW); + SetTimer(hWnd, FRAME_UPDATE_TIMER, 3000, NULL); + return 0; + } + case ID_DATADIR: + { + std::string datadir(i2p::fs::GetDataDir()); + ShellExecute(NULL, "explore", datadir.c_str(), NULL, NULL, SW_SHOWNORMAL); + return 0; + } + } + break; + } + case WM_SYSCOMMAND: + { + switch (wParam) + { + case SC_MINIMIZE: + { + ShowWindow(hWnd, SW_HIDE); + KillTimer (hWnd, FRAME_UPDATE_TIMER); + return 0; + } + case SC_CLOSE: + { + std::string close; i2p::config::GetOption("close", close); + if (0 == close.compare("ask")) + switch(::MessageBox(hWnd, "Would you like to minimize instead of exiting?" + " You can add 'close' configuration option. Valid values are: ask, minimize, exit.", + "Minimize instead of exiting?", MB_ICONQUESTION | MB_YESNOCANCEL | MB_DEFBUTTON1)) + { + case IDYES: close = "minimize"; break; + case IDNO: close = "exit"; break; + default: return 0; + } + if (0 == close.compare("minimize")) + { + ShowWindow(hWnd, SW_HIDE); + KillTimer (hWnd, FRAME_UPDATE_TIMER); + return 0; + } + if (0 != close.compare("exit")) + { + ::MessageBox(hWnd, close.c_str(), "Unknown close action in config", MB_OK | MB_ICONWARNING); + return 0; + } + } + } + [[fallthrough]]; + } + case WM_TRAYICON: + { + switch (lParam) + { + case WM_LBUTTONUP: + case WM_RBUTTONUP: + { + SetForegroundWindow (hWnd); + ShowPopupMenu(hWnd, NULL, -1); + PostMessage (hWnd, WM_APP + 1, 0, 0); + break; + } + } + break; + } + case WM_TIMER: + { + switch(wParam) + { + case IDT_GRACEFUL_SHUTDOWN_TIMER: + { + g_GracefulShutdownEndtime = 0; + PostMessage (hWnd, WM_CLOSE, 0, 0); // exit + return 0; + } + case IDT_GRACEFUL_TUNNELCHECK_TIMER: + { + if (i2p::tunnel::tunnels.CountTransitTunnels() == 0) + PostMessage (hWnd, WM_CLOSE, 0, 0); + else + SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); + return 0; + } + case FRAME_UPDATE_TIMER: + { + InvalidateRect(hWnd, NULL, TRUE); + return 0; + } + } + break; + } + case WM_PAINT: + { + HDC hDC; + PAINTSTRUCT ps; + RECT rp; + HFONT hFont; + std::stringstream s; PrintMainWindowText (s); + hDC = BeginPaint (hWnd, &ps); + GetClientRect(hWnd, &rp); + SetTextColor(hDC, 0x00D43B69); + hFont = CreateFont(18,0,0,0,0,0,0,0,DEFAULT_CHARSET,0,0,0,0,TEXT("Times New Roman")); + SelectObject(hDC,hFont); + DrawText(hDC, TEXT(s.str().c_str()), s.str().length(), &rp, DT_CENTER|DT_VCENTER); + DeleteObject(hFont); + EndPaint(hWnd, &ps); + break; + } + default: + { + if (uMsg == s_uTaskbarRestart) + AddTrayIcon (hWnd, false); + break; + } + } + return DefWindowProc( hWnd, uMsg, wParam, lParam); + } + + bool StartWin32App (bool isWinService) + { + g_isWinService = isWinService; + if (FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd"))) + { + MessageBox(NULL, TEXT("I2Pd is running already"), TEXT("Warning"), MB_OK); + return false; + } + // register main window + auto hInst = GetModuleHandle(NULL); + WNDCLASSEX wclx; + memset (&wclx, 0, sizeof(wclx)); + wclx.cbSize = sizeof(wclx); + wclx.style = 0; + wclx.lpfnWndProc = WndProc; + //wclx.cbClsExtra = 0; + //wclx.cbWndExtra = 0; + wclx.hInstance = hInst; + wclx.hIcon = LoadIcon (hInst, MAKEINTRESOURCE(MAINICON)); + wclx.hCursor = LoadCursor (NULL, IDC_ARROW); + //wclx.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); + wclx.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); + wclx.lpszMenuName = NULL; + wclx.lpszClassName = I2PD_WIN32_CLASSNAME; + RegisterClassEx (&wclx); + // create new window + if (!CreateWindow(I2PD_WIN32_CLASSNAME, TEXT("i2pd"), WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX, 100, 100, 350, 210, NULL, NULL, hInst, NULL)) + { + MessageBox(NULL, "Failed to create main window", TEXT("Warning!"), MB_ICONERROR | MB_OK | MB_TOPMOST); + return false; + } + // COM requires message loop to work, which is not implemented in service mode + if (!g_isWinService) + SubscribeToEvents(); + return true; + } + + int RunWin32App () + { + MSG msg; + while (GetMessage (&msg, NULL, 0, 0 )) + { + TranslateMessage (&msg); + DispatchMessage (&msg); + } + return msg.wParam; + } + + void StopWin32App () + { + HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); + if (hWnd) + PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_EXIT, 0), 0); + else if(!g_isWinService) + UnSubscribeFromEvents(); + UnregisterClass (I2PD_WIN32_CLASSNAME, GetModuleHandle(NULL)); + } + + bool GracefulShutdown () + { + HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); + if (hWnd) + PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_GRACEFUL_SHUTDOWN, 0), 0); + return hWnd; + } + + bool StopGracefulShutdown () + { + HWND hWnd = FindWindow (I2PD_WIN32_CLASSNAME, TEXT("i2pd")); + if (hWnd) + PostMessage (hWnd, WM_COMMAND, MAKEWPARAM(ID_STOP_GRACEFUL_SHUTDOWN, 0), 0); + return hWnd; + } +} +} diff --git a/Win32/Win32App.h b/Win32/Win32App.h index b230eb06..614de738 100644 --- a/Win32/Win32App.h +++ b/Win32/Win32App.h @@ -1,17 +1,27 @@ -#ifndef WIN32APP_H__ -#define WIN32APP_H__ - -#define I2PD_WIN32_CLASSNAME "i2pd main window" - -namespace i2p -{ -namespace win32 -{ - bool StartWin32App (); - void StopWin32App (); - int RunWin32App (); - bool GracefulShutdown (); - bool StopGracefulShutdown (); -} -} -#endif // WIN32APP_H__ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef WIN32APP_H__ +#define WIN32APP_H__ + +#define I2PD_WIN32_CLASSNAME "i2pd main window" + +namespace i2p +{ +namespace win32 +{ + extern DWORD g_GracefulShutdownEndtime; + + bool StartWin32App (bool isWinService); + void StopWin32App (); + int RunWin32App (); + bool GracefulShutdown (); + bool StopGracefulShutdown (); +} +} +#endif // WIN32APP_H__ diff --git a/Win32/Win32NetState.cpp b/Win32/Win32NetState.cpp new file mode 100644 index 00000000..4ef768c8 --- /dev/null +++ b/Win32/Win32NetState.cpp @@ -0,0 +1,103 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#if WINVER != 0x0501 // supported since Vista +#include "Win32NetState.h" +#include +#include "Log.h" + +IUnknown *pUnknown = nullptr; +INetworkListManager *pNetworkListManager = nullptr; +IConnectionPointContainer *pCPContainer = nullptr; +IConnectionPoint *pConnectPoint = nullptr; +CNetworkListManagerEvent *pNetEvent = nullptr; +DWORD Cookie = 0; + +void SubscribeToEvents() +{ + LogPrint(eLogInfo, "NetState: Trying to subscribe to NetworkListManagerEvents"); + CoInitialize(NULL); + + HRESULT Result = CoCreateInstance(CLSID_NetworkListManager, NULL, CLSCTX_ALL, IID_IUnknown, (void **)&pUnknown); + if (SUCCEEDED(Result)) + { + Result = pUnknown->QueryInterface(IID_INetworkListManager, (void **)&pNetworkListManager); + if (SUCCEEDED(Result)) + { + VARIANT_BOOL IsConnect = VARIANT_FALSE; +#if defined(_MSC_VER) + Result = pNetworkListManager->get_IsConnectedToInternet(&IsConnect); +#else + Result = pNetworkListManager->IsConnectedToInternet(&IsConnect); +#endif + if (SUCCEEDED(Result)) { + i2p::transport::transports.SetOnline (true); + LogPrint(eLogInfo, "NetState: Current state: ", IsConnect == VARIANT_TRUE ? "connected" : "disconnected"); + } + + Result = pNetworkListManager->QueryInterface(IID_IConnectionPointContainer, (void **)&pCPContainer); + if (SUCCEEDED(Result)) + { + Result = pCPContainer->FindConnectionPoint(IID_INetworkListManagerEvents, &pConnectPoint); + if(SUCCEEDED(Result)) + { + pNetEvent = new CNetworkListManagerEvent; + Result = pConnectPoint->Advise((IUnknown *)pNetEvent, &Cookie); + if (SUCCEEDED(Result)) + LogPrint(eLogInfo, "NetState: Successfully subscribed to NetworkListManagerEvent messages"); + else + LogPrint(eLogError, "NetState: Unable to subscribe to NetworkListManagerEvent messages"); + } else + LogPrint(eLogError, "NetState: Unable to find interface connection point"); + } else + LogPrint(eLogError, "NetState: Unable to query NetworkListManager interface"); + } else + LogPrint(eLogError, "NetState: Unable to query global interface"); + } else + LogPrint(eLogError, "NetState: Unable to create INetworkListManager interface"); +} + +void UnSubscribeFromEvents() +{ + LogPrint(eLogInfo, "NetState: Unsubscribing from NetworkListManagerEvents"); + try + { + if (pConnectPoint) { + pConnectPoint->Unadvise(Cookie); + pConnectPoint->Release(); + } + + if (pNetEvent) + { + pNetEvent->Release(); + } + + if (pCPContainer) + { + pCPContainer->Release(); + } + + if (pNetworkListManager) + { + pNetworkListManager->Release(); + } + + if (pUnknown) + { + pUnknown->Release(); + } + + CoUninitialize(); + } + catch (std::exception& ex) + { + LogPrint (eLogError, "NetState: Received exception: ", ex.what ()); + } +} + +#endif // WINVER diff --git a/Win32/Win32NetState.h b/Win32/Win32NetState.h new file mode 100644 index 00000000..c1f47a24 --- /dev/null +++ b/Win32/Win32NetState.h @@ -0,0 +1,92 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef WIN_32_NETSTATE_H__ +#define WIN_32_NETSTATE_H__ + +#if WINVER != 0x0501 // supported since Vista +#include +#include +#include "Log.h" +#include "Transports.h" + +class CNetworkListManagerEvent final : public INetworkListManagerEvents +{ +public: + CNetworkListManagerEvent() : m_ref(1) { } + ~CNetworkListManagerEvent() { } + + HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject) + { + if (IsEqualIID(riid, IID_IUnknown)) { + *ppvObject = (IUnknown *)this; + } else if (IsEqualIID(riid ,IID_INetworkListManagerEvents)) { + *ppvObject = (INetworkListManagerEvents *)this; + } else { + return E_NOINTERFACE; + } + AddRef(); + return S_OK; + } + + ULONG STDMETHODCALLTYPE AddRef() + { + return (ULONG)InterlockedIncrement(&m_ref); + } + + ULONG STDMETHODCALLTYPE Release() + { + LONG Result = InterlockedDecrement(&m_ref); + if (Result == 0) + delete this; + return (ULONG)Result; + } + + virtual HRESULT STDMETHODCALLTYPE ConnectivityChanged(NLM_CONNECTIVITY newConnectivity) + { + if (newConnectivity == NLM_CONNECTIVITY_DISCONNECTED) { + i2p::transport::transports.SetOnline (false); + LogPrint(eLogInfo, "NetState: disconnected from network"); + } + + if (((int)newConnectivity & (int)NLM_CONNECTIVITY_IPV4_INTERNET) != 0) { + i2p::transport::transports.SetOnline (true); + LogPrint(eLogInfo, "NetState: connected to internet with IPv4 capability"); + } + + if (((int)newConnectivity & (int)NLM_CONNECTIVITY_IPV6_INTERNET) != 0) { + i2p::transport::transports.SetOnline (true); + LogPrint(eLogInfo, "NetState: connected to internet with IPv6 capability"); + } + + if ( + (((int)newConnectivity & (int)NLM_CONNECTIVITY_IPV4_INTERNET) == 0) && + (((int)newConnectivity & (int)NLM_CONNECTIVITY_IPV6_INTERNET) == 0) + ) { + i2p::transport::transports.SetOnline (false); + LogPrint(eLogInfo, "NetState: connected without internet access"); + } + + return S_OK; + } + +private: + + LONG m_ref; +}; + +void SubscribeToEvents(); +void UnSubscribeFromEvents(); + +#else // WINVER == 0x0501 + +void SubscribeToEvents() { } +void UnSubscribeFromEvents() { } + +#endif // WINVER +#endif diff --git a/Win32/Win32Service.cpp b/Win32/Win32Service.cpp index 717bc887..057a1edd 100644 --- a/Win32/Win32Service.cpp +++ b/Win32/Win32Service.cpp @@ -1,10 +1,13 @@ -#ifdef _WIN32 -#define _CRT_SECURE_NO_WARNINGS // to use freopen -#endif +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ #include "Win32Service.h" #include -#include #include #include "Daemon.h" @@ -18,7 +21,7 @@ BOOL I2PService::isService() HWINSTA hWinStation = GetProcessWindowStation(); if (hWinStation != NULL) { - USEROBJECTFLAGS uof = { 0 }; + USEROBJECTFLAGS uof = { FALSE, FALSE, 0 }; if (GetUserObjectInformation(hWinStation, UOI_FLAGS, &uof, sizeof(USEROBJECTFLAGS), NULL) && ((uof.dwFlags & WSF_VISIBLE) == 0)) { bIsService = TRUE; @@ -116,24 +119,20 @@ void I2PService::Start(DWORD dwArgc, PSTR *pszArgv) } catch (DWORD dwError) { - LogPrint(eLogError, "Win32Service Start", dwError); + LogPrint(eLogCritical, "Win32Service: Start error: ", dwError); SetServiceStatus(SERVICE_STOPPED, dwError); } catch (...) { - LogPrint(eLogError, "Win32Service failed to start.", EVENTLOG_ERROR_TYPE); + LogPrint(eLogCritical, "Win32Service: failed to start: ", EVENTLOG_ERROR_TYPE); SetServiceStatus(SERVICE_STOPPED); } } void I2PService::OnStart(DWORD dwArgc, PSTR *pszArgv) { - LogPrint(eLogInfo, "Win32Service in OnStart", EVENTLOG_INFORMATION_TYPE); + LogPrint(eLogInfo, "Win32Service: in OnStart (", EVENTLOG_INFORMATION_TYPE, ")"); Daemon.start(); - //i2p::util::config::OptionParser(dwArgc, pszArgv); - //i2p::util::filesystem::ReadConfigFile(i2p::util::config::mapArgs, i2p::util::config::mapMultiArgs); - //i2p::context.OverrideNTCPAddress(i2p::util::config::GetCharArg("-host", "127.0.0.1"), - // i2p::util::config::GetArg("-port", 17070)); _worker = new std::thread(std::bind(&I2PService::WorkerThread, this)); } @@ -158,12 +157,12 @@ void I2PService::Stop() } catch (DWORD dwError) { - LogPrint(eLogInfo, "Win32Service Stop", dwError); + LogPrint(eLogInfo, "Win32Service: Stop error: ", dwError); SetServiceStatus(dwOriginalState); } catch (...) { - LogPrint(eLogError, "Win32Service failed to stop.", EVENTLOG_ERROR_TYPE); + LogPrint(eLogCritical, "Win32Service: Failed to stop: ", EVENTLOG_ERROR_TYPE); SetServiceStatus(dwOriginalState); } } @@ -171,7 +170,7 @@ void I2PService::Stop() void I2PService::OnStop() { // Log a service stop message to the Application log. - LogPrint(eLogInfo, "Win32Service in OnStop", EVENTLOG_INFORMATION_TYPE); + LogPrint(eLogInfo, "Win32Service: in OnStop (", EVENTLOG_INFORMATION_TYPE, ")"); Daemon.stop(); m_fStopping = TRUE; if (WaitForSingleObject(m_hStoppedEvent, INFINITE) != WAIT_OBJECT_0) @@ -192,12 +191,12 @@ void I2PService::Pause() } catch (DWORD dwError) { - LogPrint(eLogError, "Win32Service Pause", dwError); + LogPrint(eLogCritical, "Win32Service: Pause error: ", dwError); SetServiceStatus(SERVICE_RUNNING); } catch (...) { - LogPrint(eLogError, "Win32Service failed to pause.", EVENTLOG_ERROR_TYPE); + LogPrint(eLogCritical, "Win32Service: Failed to pause: ", EVENTLOG_ERROR_TYPE); SetServiceStatus(SERVICE_RUNNING); } } @@ -216,12 +215,12 @@ void I2PService::Continue() } catch (DWORD dwError) { - LogPrint(eLogError, "Win32Service Continue", dwError); + LogPrint(eLogCritical, "Win32Service: Continue error: ", dwError); SetServiceStatus(SERVICE_PAUSED); } catch (...) { - LogPrint(eLogError, "Win32Service failed to resume.", EVENTLOG_ERROR_TYPE); + LogPrint(eLogCritical, "Win32Service: Failed to resume: ", EVENTLOG_ERROR_TYPE); SetServiceStatus(SERVICE_PAUSED); } } @@ -239,11 +238,11 @@ void I2PService::Shutdown() } catch (DWORD dwError) { - LogPrint(eLogError, "Win32Service Shutdown", dwError); + LogPrint(eLogCritical, "Win32Service: Shutdown error: ", dwError); } catch (...) { - LogPrint(eLogError, "Win32Service failed to shut down.", EVENTLOG_ERROR_TYPE); + LogPrint(eLogCritical, "Win32Service: Failed to shut down: ", EVENTLOG_ERROR_TYPE); } } @@ -282,125 +281,3 @@ void FreeHandles(SC_HANDLE schSCManager, SC_HANDLE schService) schService = NULL; } } - -void InstallService(PCSTR pszServiceName, PCSTR pszDisplayName, DWORD dwStartType, PCSTR pszDependencies, PCSTR pszAccount, PCSTR pszPassword) -{ - printf("Try to install Win32Service (%s).\n", pszServiceName); - - char szPath[MAX_PATH]; - SC_HANDLE schSCManager = NULL; - SC_HANDLE schService = NULL; - - if (GetModuleFileName(NULL, szPath, ARRAYSIZE(szPath)) == 0) - { - printf("GetModuleFileName failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - char SvcOpt[] = " --daemon"; - strncat(szPath, SvcOpt, strlen(SvcOpt)); - - // Open the local default service control manager database - schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT | SC_MANAGER_CREATE_SERVICE); - if (schSCManager == NULL) - { - printf("OpenSCManager failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - - // Install the service into SCM by calling CreateService - schService = CreateService( - schSCManager, // SCManager database - pszServiceName, // Name of service - pszDisplayName, // Name to display - SERVICE_QUERY_STATUS, // Desired access - SERVICE_WIN32_OWN_PROCESS, // Service type - dwStartType, // Service start type - SERVICE_ERROR_NORMAL, // Error control type - szPath, // Service's binary - NULL, // No load ordering group - NULL, // No tag identifier - pszDependencies, // Dependencies - pszAccount, // Service running account - pszPassword // Password of the account - ); - - if (schService == NULL) - { - printf("CreateService failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - - printf("Win32Service is installed as %s.\n", pszServiceName); - - // Centralized cleanup for all allocated resources. - FreeHandles(schSCManager, schService); -} - -void UninstallService(PCSTR pszServiceName) -{ - printf("Try to uninstall Win32Service (%s).\n", pszServiceName); - - SC_HANDLE schSCManager = NULL; - SC_HANDLE schService = NULL; - SERVICE_STATUS ssSvcStatus = {}; - - // Open the local default service control manager database - schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT); - if (schSCManager == NULL) - { - printf("OpenSCManager failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - - // Open the service with delete, stop, and query status permissions - schService = OpenService(schSCManager, pszServiceName, SERVICE_STOP | SERVICE_QUERY_STATUS | DELETE); - if (schService == NULL) - { - printf("OpenService failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - - // Try to stop the service - if (ControlService(schService, SERVICE_CONTROL_STOP, &ssSvcStatus)) - { - printf("Stopping %s.\n", pszServiceName); - Sleep(1000); - - while (QueryServiceStatus(schService, &ssSvcStatus)) - { - if (ssSvcStatus.dwCurrentState == SERVICE_STOP_PENDING) - { - printf("."); - Sleep(1000); - } - else break; - } - - if (ssSvcStatus.dwCurrentState == SERVICE_STOPPED) - { - printf("\n%s is stopped.\n", pszServiceName); - } - else - { - printf("\n%s failed to stop.\n", pszServiceName); - } - } - - // Now remove the service by calling DeleteService. - if (!DeleteService(schService)) - { - printf("DeleteService failed w/err 0x%08lx\n", GetLastError()); - FreeHandles(schSCManager, schService); - return; - } - - printf("%s is removed.\n", pszServiceName); - - // Centralized cleanup for all allocated resources. - FreeHandles(schSCManager, schService); -} diff --git a/Win32/Win32Service.h b/Win32/Win32Service.h index 2830d237..5cedbed6 100644 --- a/Win32/Win32Service.h +++ b/Win32/Win32Service.h @@ -1,84 +1,63 @@ +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef WIN_32_SERVICE_H__ #define WIN_32_SERVICE_H__ #include #include -#ifdef _WIN32 -// Internal name of the service -#define SERVICE_NAME "i2pdService" - -// Displayed name of the service -#define SERVICE_DISPLAY_NAME "i2pd router service" - -// Service start options. -#define SERVICE_START_TYPE SERVICE_DEMAND_START - -// List of service dependencies - "dep1\0dep2\0\0" -#define SERVICE_DEPENDENCIES "" - -// The name of the account under which the service should run -#define SERVICE_ACCOUNT "NT AUTHORITY\\LocalService" - -// The password to the service account name -#define SERVICE_PASSWORD NULL -#endif +#define SERVICE_NAME "i2pdService" class I2PService { -public: + public: - I2PService(PSTR pszServiceName, - BOOL fCanStop = TRUE, - BOOL fCanShutdown = TRUE, - BOOL fCanPauseContinue = FALSE); + I2PService(PSTR pszServiceName, + BOOL fCanStop = TRUE, + BOOL fCanShutdown = TRUE, + BOOL fCanPauseContinue = FALSE); - virtual ~I2PService(void); + virtual ~I2PService(void); - static BOOL isService(); - static BOOL Run(I2PService &service); - void Stop(); + static BOOL isService(); + static BOOL Run(I2PService &service); + void Stop(); -protected: + protected: - virtual void OnStart(DWORD dwArgc, PSTR *pszArgv); - virtual void OnStop(); - virtual void OnPause(); - virtual void OnContinue(); - virtual void OnShutdown(); - void SetServiceStatus(DWORD dwCurrentState, - DWORD dwWin32ExitCode = NO_ERROR, - DWORD dwWaitHint = 0); + virtual void OnStart(DWORD dwArgc, PSTR *pszArgv); + virtual void OnStop(); + virtual void OnPause(); + virtual void OnContinue(); + virtual void OnShutdown(); + void SetServiceStatus(DWORD dwCurrentState, + DWORD dwWin32ExitCode = NO_ERROR, + DWORD dwWaitHint = 0); -private: + private: - static void WINAPI ServiceMain(DWORD dwArgc, LPSTR *lpszArgv); - static void WINAPI ServiceCtrlHandler(DWORD dwCtrl); - void WorkerThread(); - void Start(DWORD dwArgc, PSTR *pszArgv); - void Pause(); - void Continue(); - void Shutdown(); - static I2PService* s_service; - PSTR m_name; - SERVICE_STATUS m_status; - SERVICE_STATUS_HANDLE m_statusHandle; + static void WINAPI ServiceMain(DWORD dwArgc, LPSTR *lpszArgv); + static void WINAPI ServiceCtrlHandler(DWORD dwCtrl); + void WorkerThread(); + void Start(DWORD dwArgc, PSTR *pszArgv); + void Pause(); + void Continue(); + void Shutdown(); + static I2PService* s_service; + PSTR m_name; + SERVICE_STATUS m_status; + SERVICE_STATUS_HANDLE m_statusHandle; - BOOL m_fStopping; - HANDLE m_hStoppedEvent; + BOOL m_fStopping; + HANDLE m_hStoppedEvent; - std::thread* _worker; + std::thread* _worker; }; -void InstallService( - PCSTR pszServiceName, - PCSTR pszDisplayName, - DWORD dwStartType, - PCSTR pszDependencies, - PCSTR pszAccount, - PCSTR pszPassword - ); - -void UninstallService(PCSTR pszServiceName); - -#endif // WIN_32_SERVICE_H__ \ No newline at end of file +#endif // WIN_32_SERVICE_H__ diff --git a/Win32/mask.bmp b/Win32/mask.bmp deleted file mode 100644 index cc2aeda7..00000000 Binary files a/Win32/mask.bmp and /dev/null differ diff --git a/Win32/resource.h b/Win32/resource.h index 3b188481..daa1ddcb 100644 --- a/Win32/resource.h +++ b/Win32/resource.h @@ -1,11 +1,11 @@ -//{{NO_DEPENDENCIES}} -#define MAINICON 101 - -#ifdef APSTUDIO_INVOKED -#ifndef APSTUDIO_READONLY_SYMBOLS -#define _APS_NEXT_RESOURCE_VALUE 102 -#define _APS_NEXT_COMMAND_VALUE 40001 -#define _APS_NEXT_CONTROL_VALUE 1001 -#define _APS_NEXT_SYMED_VALUE 101 -#endif -#endif +//{{NO_DEPENDENCIES}} +#define MAINICON 101 + +#ifdef APSTUDIO_INVOKED +#ifndef APSTUDIO_READONLY_SYMBOLS +#define _APS_NEXT_RESOURCE_VALUE 102 +#define _APS_NEXT_COMMAND_VALUE 40001 +#define _APS_NEXT_CONTROL_VALUE 1001 +#define _APS_NEXT_SYMED_VALUE 101 +#endif +#endif diff --git a/android/.gitignore b/android/.gitignore deleted file mode 100644 index 297d122f..00000000 --- a/android/.gitignore +++ /dev/null @@ -1,16 +0,0 @@ -gen 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--- a/android/assets/i2pd.conf +++ /dev/null @@ -1,90 +0,0 @@ -## Configuration file for a typical i2pd user -## See https://i2pd.readthedocs.io/en/latest/user-guide/configuration/ -## for more options you can use in this file. - -#logfile = /sdcard/i2pd/i2pd.log -loglevel = none -#tunnelsdir = /sdcard/i2pd/tunnels.d - -# host = 1.2.3.4 -# port = 4567 - -ipv4 = true -ipv6 = false - -# ntcp = true -# ntcpproxy = http://127.0.0.1:8118 -# ssu = true - -bandwidth = L -# share = 100 - -# notransit = true -# floodfill = true - -[ntcp2] -enabled = true - -[http] -enabled = true -address = 127.0.0.1 -port = 7070 -# auth = true -# user = i2pd -# pass = changeme - -[httpproxy] -enabled = true -address = 127.0.0.1 -port = 4444 -inbound.length = 1 -inbound.quantity = 5 -outbound.length = 1 -outbound.quantity = 5 -signaturetype=7 -keys = proxy-keys.dat -# addresshelper = true -# outproxy = http://false.i2p -## httpproxy section also accepts I2CP parameters, like "inbound.length" etc. - -[socksproxy] -enabled = true -address = 127.0.0.1 -port = 4447 -keys = proxy-keys.dat -# outproxy.enabled = false -# outproxy = 127.0.0.1 -# outproxyport = 9050 -## socksproxy section also accepts I2CP parameters, like "inbound.length" etc. - -[sam] -enabled = false -# address = 127.0.0.1 -# port = 7656 - -[precomputation] -elgamal = true - -[upnp] -enabled = true -# name = I2Pd - -[reseed] -verify = true -## Path to local reseed data file (.su3) for manual reseeding -# file = /path/to/i2pseeds.su3 -## or HTTPS URL to reseed from -# file = https://legit-website.com/i2pseeds.su3 -## Path to local ZIP file or HTTPS URL to reseed from -# zipfile = /path/to/netDb.zip -## If you run i2pd behind a proxy server, set proxy server for reseeding here -## Should be http://address:port or socks://address:port -# proxy = http://127.0.0.1:8118 -## Minimum number of known routers, below which i2pd triggers reseeding. 25 by default -# threshold = 25 - -[limits] -transittunnels = 50 - -[persist] -profiles = false diff --git a/android/assets/subscriptions.txt b/android/assets/subscriptions.txt deleted file mode 100644 index 8f4afb03..00000000 --- a/android/assets/subscriptions.txt +++ /dev/null @@ -1,3 +0,0 @@ -http://inr.i2p/export/alive-hosts.txt -http://stats.i2p/cgi-bin/newhosts.txt -http://i2p-projekt.i2p/hosts.txt diff --git a/android/assets/tunnels.conf b/android/assets/tunnels.conf deleted file mode 100644 index e95fdf2e..00000000 --- a/android/assets/tunnels.conf +++ /dev/null @@ -1,33 +0,0 @@ -[IRC-IRC2P] -#type = client -#address = 127.0.0.1 -#port = 6668 -#destination = irc.postman.i2p -#destinationport = 6667 -#keys = irc-keys.dat - -#[IRC-ILITA] -#type = client -#address = 127.0.0.1 -#port = 6669 -#destination = irc.ilita.i2p -#destinationport = 6667 -#keys = irc-keys.dat - -#[SMTP] -#type = client -#address = 127.0.0.1 -#port = 7659 -#destination = smtp.postman.i2p -#destinationport = 25 -#keys = smtp-keys.dat - -#[POP3] -#type = client -#address = 127.0.0.1 -#port = 7660 -#destination = pop.postman.i2p -#destinationport = 110 -#keys = pop3-keys.dat - -# see more examples at https://i2pd.readthedocs.io/en/latest/user-guide/tunnels/ diff --git a/android/assets/tunnels.d b/android/assets/tunnels.d deleted file mode 120000 index ff262031..00000000 --- a/android/assets/tunnels.d +++ /dev/null @@ -1 +0,0 @@ -../../contrib/tunnels.d \ No newline at end of file diff --git a/android/build.gradle b/android/build.gradle deleted file mode 100644 index e68c160f..00000000 --- a/android/build.gradle +++ /dev/null @@ -1,84 +0,0 @@ -buildscript { - repositories { - mavenCentral() - jcenter() - google() - } - dependencies { - classpath 'com.android.tools.build:gradle:3.3.2' - } -} - -apply plugin: 'com.android.application' - -repositories { - jcenter() - maven { - url 'https://maven.google.com' - } -} - -dependencies { - implementation 'com.android.support:support-compat:28.0.0' -} - -android { - compileSdkVersion 28 - buildToolsVersion "28.0.3" - defaultConfig { - applicationId "org.purplei2p.i2pd" - targetSdkVersion 28 - minSdkVersion 14 - versionCode 2250 - versionName "2.25.0" - ndk { - abiFilters 'armeabi-v7a' - abiFilters 'x86' - //abiFilters 'arm64-v8a' - //abiFilters 'x86_64' - } - externalNativeBuild { - ndkBuild { - arguments "-j3" - } - } - } - sourceSets { - main { - manifest.srcFile 'AndroidManifest.xml' - java.srcDirs = ['src'] - res.srcDirs = ['res'] - jniLibs.srcDirs = ['libs'] - assets.srcDirs = ['assets'] - } - } - splits { - abi { - // change that to true if you need splitted apk - enable false - reset() - include "armeabi-v7a", "arm64-v8a", "x86", "x86_64" - universalApk true - } - } - signingConfigs { - orignal { - storeFile file("i2pdapk.jks") - storePassword "android" - keyAlias "i2pdapk" - keyPassword "android" - } - } - buildTypes { - release { - minifyEnabled true - signingConfig signingConfigs.orignal - proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt' - } - } - externalNativeBuild { - ndkBuild { - path './jni/Android.mk' - } - } -} diff --git a/android/build.xml b/android/build.xml deleted file mode 100644 index ed8196c3..00000000 --- a/android/build.xml +++ /dev/null @@ -1,96 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/android/gradle.properties b/android/gradle.properties deleted file mode 100644 index af82e006..00000000 --- a/android/gradle.properties +++ /dev/null @@ -1 +0,0 @@ -org.gradle.parallel=true \ No newline at end of file diff --git a/android/gradle/wrapper/gradle-wrapper.jar b/android/gradle/wrapper/gradle-wrapper.jar deleted file mode 100644 index f6b961fd..00000000 Binary files a/android/gradle/wrapper/gradle-wrapper.jar and /dev/null differ diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties deleted file mode 100644 index 0e4283d9..00000000 --- a/android/gradle/wrapper/gradle-wrapper.properties +++ /dev/null @@ -1,6 +0,0 @@ -#Thu Mar 14 18:21:08 MSK 2019 -distributionBase=GRADLE_USER_HOME -distributionPath=wrapper/dists -zipStoreBase=GRADLE_USER_HOME -zipStorePath=wrapper/dists -distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip diff --git a/android/gradlew b/android/gradlew deleted file mode 100755 index cccdd3d5..00000000 --- a/android/gradlew +++ /dev/null @@ -1,172 +0,0 @@ -#!/usr/bin/env sh - -############################################################################## -## -## Gradle start up script for UN*X -## -############################################################################## - -# Attempt to set APP_HOME -# Resolve links: $0 may be a link -PRG="$0" -# Need this for relative symlinks. -while [ -h "$PRG" ] ; do - ls=`ls -ld "$PRG"` - link=`expr "$ls" : '.*-> \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG=`dirname "$PRG"`"/$link" - fi -done -SAVED="`pwd`" -cd "`dirname \"$PRG\"`/" >/dev/null -APP_HOME="`pwd -P`" -cd "$SAVED" >/dev/null - -APP_NAME="Gradle" -APP_BASE_NAME=`basename "$0"` - -# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -DEFAULT_JVM_OPTS="" - -# Use the maximum available, or set MAX_FD != -1 to use that value. -MAX_FD="maximum" - -warn () { - echo "$*" -} - -die () { - echo - echo "$*" - echo - exit 1 -} - -# OS specific support (must be 'true' or 'false'). -cygwin=false -msys=false -darwin=false -nonstop=false -case "`uname`" in - CYGWIN* ) - cygwin=true - ;; - Darwin* ) - darwin=true - ;; - MINGW* ) - msys=true - ;; - NONSTOP* ) - nonstop=true - ;; -esac - -CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar - -# Determine the Java command to use to start the JVM. -if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - if [ ! -x "$JAVACMD" ] ; then - die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." - fi -else - JAVACMD="java" - which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. - -Please set the JAVA_HOME variable in your environment to match the -location of your Java installation." -fi - -# Increase the maximum file descriptors if we can. -if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then - MAX_FD_LIMIT=`ulimit -H -n` - if [ $? -eq 0 ] ; then - if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then - MAX_FD="$MAX_FD_LIMIT" - fi - ulimit -n $MAX_FD - if [ $? -ne 0 ] ; then - warn "Could not set maximum file descriptor limit: $MAX_FD" - fi - else - warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" - fi -fi - -# For Darwin, add options to specify how the application appears in the dock -if $darwin; then - GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" -fi - -# For Cygwin, switch paths to Windows format before running java -if $cygwin ; then - APP_HOME=`cygpath --path --mixed "$APP_HOME"` - CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` - JAVACMD=`cygpath --unix "$JAVACMD"` - - # We build the pattern for arguments to be converted via cygpath - ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` - SEP="" - for dir in $ROOTDIRSRAW ; do - ROOTDIRS="$ROOTDIRS$SEP$dir" - SEP="|" - done - OURCYGPATTERN="(^($ROOTDIRS))" - # Add a user-defined pattern to the cygpath arguments - if [ "$GRADLE_CYGPATTERN" != "" ] ; then - OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" - fi - # Now convert the arguments - kludge to limit ourselves to /bin/sh - i=0 - for arg in "$@" ; do - CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` - CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option - - if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition - eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` - else - eval `echo args$i`="\"$arg\"" - fi - i=$((i+1)) - done - case $i in - (0) set -- ;; - (1) set -- "$args0" ;; - (2) set -- "$args0" "$args1" ;; - (3) set -- "$args0" "$args1" "$args2" ;; - (4) set -- "$args0" "$args1" "$args2" "$args3" ;; - (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; - (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; - (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; - (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; - (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; - esac -fi - -# Escape application args -save () { - for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done - echo " " -} -APP_ARGS=$(save "$@") - -# Collect all arguments for the java command, following the shell quoting and substitution rules -eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" - -# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong -if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then - cd "$(dirname "$0")" -fi - -exec "$JAVACMD" "$@" diff --git a/android/gradlew.bat b/android/gradlew.bat deleted file mode 100644 index f9553162..00000000 --- a/android/gradlew.bat +++ /dev/null @@ -1,84 +0,0 @@ -@if "%DEBUG%" == "" @echo off -@rem ########################################################################## -@rem -@rem Gradle startup script for Windows -@rem -@rem ########################################################################## - -@rem Set local scope for the variables with windows NT shell -if "%OS%"=="Windows_NT" setlocal - -set DIRNAME=%~dp0 -if "%DIRNAME%" == "" set DIRNAME=. -set APP_BASE_NAME=%~n0 -set APP_HOME=%DIRNAME% - -@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. -set DEFAULT_JVM_OPTS= - -@rem Find java.exe -if defined JAVA_HOME goto findJavaFromJavaHome - -set JAVA_EXE=java.exe -%JAVA_EXE% -version >NUL 2>&1 -if "%ERRORLEVEL%" == "0" goto init - -echo. -echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:findJavaFromJavaHome -set JAVA_HOME=%JAVA_HOME:"=% -set JAVA_EXE=%JAVA_HOME%/bin/java.exe - -if exist "%JAVA_EXE%" goto init - -echo. -echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% -echo. -echo Please set the JAVA_HOME variable in your environment to match the -echo location of your Java installation. - -goto fail - -:init -@rem Get command-line arguments, handling Windows variants - -if not "%OS%" == "Windows_NT" goto win9xME_args - -:win9xME_args -@rem Slurp the command line arguments. -set CMD_LINE_ARGS= -set _SKIP=2 - -:win9xME_args_slurp -if "x%~1" == "x" goto execute - -set CMD_LINE_ARGS=%* - -:execute -@rem Setup the command line - -set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar - -@rem Execute Gradle -"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% - -:end -@rem End local scope for the variables with windows NT shell -if "%ERRORLEVEL%"=="0" goto mainEnd - -:fail -rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of -rem the _cmd.exe /c_ return code! -if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 -exit /b 1 - -:mainEnd -if "%OS%"=="Windows_NT" endlocal - -:omega diff --git a/android/jni/Android.mk b/android/jni/Android.mk deleted file mode 100755 index d44fcc5a..00000000 --- a/android/jni/Android.mk +++ /dev/null @@ -1,73 +0,0 @@ -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := i2pd -LOCAL_CPP_FEATURES := rtti exceptions -LOCAL_C_INCLUDES += $(IFADDRS_PATH) $(LIB_SRC_PATH) $(LIB_CLIENT_SRC_PATH) $(DAEMON_SRC_PATH) -LOCAL_STATIC_LIBRARIES := \ - boost_system \ - boost_date_time \ - boost_filesystem \ - boost_program_options \ - crypto ssl \ - miniupnpc -LOCAL_LDLIBS := -lz - -LOCAL_SRC_FILES := DaemonAndroid.cpp i2pd_android.cpp $(IFADDRS_PATH)/ifaddrs.c \ - $(wildcard $(LIB_SRC_PATH)/*.cpp)\ - $(wildcard $(LIB_CLIENT_SRC_PATH)/*.cpp)\ - $(DAEMON_SRC_PATH)/Daemon.cpp \ - $(DAEMON_SRC_PATH)/UPnP.cpp \ - $(DAEMON_SRC_PATH)/HTTPServer.cpp \ - $(DAEMON_SRC_PATH)/I2PControl.cpp - -include $(BUILD_SHARED_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := boost_system -LOCAL_SRC_FILES := $(BOOST_PATH)/boost_1_68_0-clang/$(TARGET_ARCH_ABI)/lib/libboost_system.a -LOCAL_EXPORT_C_INCLUDES := $(BOOST_PATH)/boost_1_68_0-clang/include -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := boost_date_time -LOCAL_SRC_FILES := $(BOOST_PATH)/boost_1_68_0-clang/$(TARGET_ARCH_ABI)/lib/libboost_date_time.a -LOCAL_EXPORT_C_INCLUDES := $(BOOST_PATH)/boost_1_68_0-clang/include -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := boost_filesystem -LOCAL_SRC_FILES := $(BOOST_PATH)/boost_1_68_0-clang/$(TARGET_ARCH_ABI)/lib/libboost_filesystem.a -LOCAL_EXPORT_C_INCLUDES := $(BOOST_PATH)/boost_1_68_0-clang/include -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := boost_program_options -LOCAL_SRC_FILES := $(BOOST_PATH)/boost_1_68_0-clang/$(TARGET_ARCH_ABI)/lib/libboost_program_options.a -LOCAL_EXPORT_C_INCLUDES := $(BOOST_PATH)/boost_1_68_0-clang/include -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := crypto -LOCAL_SRC_FILES := $(OPENSSL_PATH)/openssl-1.1.1a-clang/$(TARGET_ARCH_ABI)/lib/libcrypto.a -LOCAL_EXPORT_C_INCLUDES := $(OPENSSL_PATH)/openssl-1.1.1a-clang/include -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := ssl -LOCAL_SRC_FILES := $(OPENSSL_PATH)/openssl-1.1.1a-clang/$(TARGET_ARCH_ABI)/lib/libssl.a -LOCAL_EXPORT_C_INCLUDES := $(OPENSSL_PATH)/openssl-1.1.1a-clang/include -LOCAL_STATIC_LIBRARIES := crypto -include $(PREBUILT_STATIC_LIBRARY) - -LOCAL_PATH := $(call my-dir) -include $(CLEAR_VARS) -LOCAL_MODULE := miniupnpc -LOCAL_SRC_FILES := $(MINIUPNP_PATH)/miniupnpc-2.1/$(TARGET_ARCH_ABI)/lib/libminiupnpc.a -LOCAL_EXPORT_C_INCLUDES := $(MINIUPNP_PATH)/miniupnpc-2.1/include -include $(PREBUILT_STATIC_LIBRARY) diff --git a/android/jni/Application.mk b/android/jni/Application.mk deleted file mode 100755 index 6d51ac1a..00000000 --- a/android/jni/Application.mk +++ /dev/null @@ -1,36 +0,0 @@ -#APP_ABI := armeabi-v7a x86 -#APP_PLATFORM := android-14 - -# ABI arm64-v8a and x86_64 supported only from platform-21 -#APP_ABI := arm64-v8a x86_64 -#APP_PLATFORM := android-21 - -NDK_TOOLCHAIN_VERSION := clang -#APP_STL := c++_shared -APP_STL := c++_static - -# Enable c++11 extensions in source code -APP_CPPFLAGS += -std=c++11 -fexceptions -frtti - -APP_CPPFLAGS += -DANDROID -D__ANDROID__ -DUSE_UPNP -ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) -APP_CPPFLAGS += -DANDROID_ARM7A -endif - -# git clone https://github.com/PurpleI2P/Boost-for-Android-Prebuilt.git -# git clone https://github.com/PurpleI2P/OpenSSL-for-Android-Prebuilt.git -# git clone https://github.com/PurpleI2P/MiniUPnP-for-Android-Prebuilt.git -# git clone https://github.com/PurpleI2P/android-ifaddrs.git -# change to your own -I2PD_LIBS_PATH = /path/to/libraries -BOOST_PATH = $(I2PD_LIBS_PATH)/Boost-for-Android-Prebuilt -OPENSSL_PATH = $(I2PD_LIBS_PATH)/OpenSSL-for-Android-Prebuilt -MINIUPNP_PATH = $(I2PD_LIBS_PATH)/MiniUPnP-for-Android-Prebuilt -IFADDRS_PATH = $(I2PD_LIBS_PATH)/android-ifaddrs - -# don't change me -I2PD_SRC_PATH = $(PWD)/.. - -LIB_SRC_PATH = $(I2PD_SRC_PATH)/libi2pd -LIB_CLIENT_SRC_PATH = $(I2PD_SRC_PATH)/libi2pd_client -DAEMON_SRC_PATH = $(I2PD_SRC_PATH)/daemon diff --git a/android/jni/DaemonAndroid.cpp b/android/jni/DaemonAndroid.cpp deleted file mode 100644 index c3a1b805..00000000 --- a/android/jni/DaemonAndroid.cpp +++ /dev/null @@ -1,214 +0,0 @@ -#include -#include -#include -#include -#include -#include -//#include "mainwindow.h" -#include "FS.h" -#include "DaemonAndroid.h" -#include "Daemon.h" - -namespace i2p -{ -namespace android -{ -/* Worker::Worker (DaemonAndroidImpl& daemon): - m_Daemon (daemon) - { - } - - void Worker::startDaemon() - { - Log.d(TAG"Performing daemon start..."); - m_Daemon.start(); - Log.d(TAG"Daemon started."); - emit resultReady(); - } - void Worker::restartDaemon() - { - Log.d(TAG"Performing daemon restart..."); - m_Daemon.restart(); - Log.d(TAG"Daemon restarted."); - emit resultReady(); - } - void Worker::stopDaemon() { - Log.d(TAG"Performing daemon stop..."); - m_Daemon.stop(); - Log.d(TAG"Daemon stopped."); - emit resultReady(); - } - - Controller::Controller(DaemonAndroidImpl& daemon): - m_Daemon (daemon) - { - Worker *worker = new Worker (m_Daemon); - worker->moveToThread(&workerThread); - connect(&workerThread, &QThread::finished, worker, &QObject::deleteLater); - connect(this, &Controller::startDaemon, worker, &Worker::startDaemon); - connect(this, &Controller::stopDaemon, worker, &Worker::stopDaemon); - connect(this, &Controller::restartDaemon, worker, &Worker::restartDaemon); - connect(worker, &Worker::resultReady, this, &Controller::handleResults); - workerThread.start(); - } - Controller::~Controller() - { - Log.d(TAG"Closing and waiting for daemon worker thread..."); - workerThread.quit(); - workerThread.wait(); - Log.d(TAG"Waiting for daemon worker thread finished."); - if(m_Daemon.isRunning()) - { - Log.d(TAG"Stopping the daemon..."); - m_Daemon.stop(); - Log.d(TAG"Stopped the daemon."); - } - } -*/ - std::string dataDir = ""; - - DaemonAndroidImpl::DaemonAndroidImpl () - //: - /*mutex(nullptr), */ - //m_IsRunning(false), - //m_RunningChangedCallback(nullptr) - { - } - - DaemonAndroidImpl::~DaemonAndroidImpl () - { - //delete mutex; - } - - bool DaemonAndroidImpl::init(int argc, char* argv[]) - { - //mutex=new QMutex(QMutex::Recursive); - //setRunningCallback(0); - //m_IsRunning=false; - - // make sure assets are ready before proceed - i2p::fs::DetectDataDir(dataDir, false); - int numAttempts = 0; - do - { - if (i2p::fs::Exists (i2p::fs::DataDirPath("assets.ready"))) break; // assets ready - numAttempts++; - std::this_thread::sleep_for (std::chrono::seconds(1)); // otherwise wait for 1 more second - } - while (numAttempts <= 10); // 10 seconds max - return Daemon.init(argc,argv); - } - - void DaemonAndroidImpl::start() - { - //QMutexLocker locker(mutex); - //setRunning(true); - Daemon.start(); - } - - void DaemonAndroidImpl::stop() - { - //QMutexLocker locker(mutex); - Daemon.stop(); - //setRunning(false); - } - - void DaemonAndroidImpl::restart() - { - //QMutexLocker locker(mutex); - stop(); - start(); - } - /* - void DaemonAndroidImpl::setRunningCallback(runningChangedCallback cb) - { - m_RunningChangedCallback = cb; - } - - bool DaemonAndroidImpl::isRunning() - { - return m_IsRunning; - } - - void DaemonAndroidImpl::setRunning(bool newValue) - { - bool oldValue = m_IsRunning; - if(oldValue!=newValue) - { - m_IsRunning = newValue; - if(m_RunningChangedCallback) - m_RunningChangedCallback(); - } - } -*/ - static DaemonAndroidImpl daemon; - static char* argv[1]={strdup("tmp")}; - /** - * returns error details if failed - * returns "ok" if daemon initialized and started okay - */ - std::string start(/*int argc, char* argv[]*/) - { - try - { - //int result; - - { - //Log.d(TAG"Initialising the daemon..."); - bool daemonInitSuccess = daemon.init(1,argv); - if(!daemonInitSuccess) - { - //QMessageBox::critical(0, "Error", "Daemon init failed"); - return "Daemon init failed"; - } - //Log.d(TAG"Initialised, creating the main window..."); - //MainWindow w; - //Log.d(TAG"Before main window.show()..."); - //w.show (); - - { - //i2p::qt::Controller daemonQtController(daemon); - //Log.d(TAG"Starting the daemon..."); - //emit daemonQtController.startDaemon(); - //daemon.start (); - //Log.d(TAG"Starting GUI event loop..."); - //result = app.exec(); - //daemon.stop (); - daemon.start(); - } - } - - //QMessageBox::information(&w, "Debug", "demon stopped"); - //Log.d(TAG"Exiting the application"); - //return result; - } - catch (boost::exception& ex) - { - std::stringstream ss; - ss << boost::diagnostic_information(ex); - return ss.str(); - } - catch (std::exception& ex) - { - std::stringstream ss; - ss << ex.what(); - return ss.str(); - } - catch(...) - { - return "unknown exception"; - } - return "ok"; - } - - void stop() - { - daemon.stop(); - } - - void SetDataDir(std::string jdataDir) - { - dataDir = jdataDir; - } -} -} diff --git a/android/jni/DaemonAndroid.h b/android/jni/DaemonAndroid.h deleted file mode 100644 index 64bf64fd..00000000 --- a/android/jni/DaemonAndroid.h +++ /dev/null @@ -1,89 +0,0 @@ -#ifndef DAEMON_ANDROID_H -#define DAEMON_ANDROID_H - -#include - -namespace i2p -{ -namespace android -{ - class DaemonAndroidImpl - { - public: - - DaemonAndroidImpl (); - ~DaemonAndroidImpl (); - - //typedef void (*runningChangedCallback)(); - - /** - * @return success - */ - bool init(int argc, char* argv[]); - void start(); - void stop(); - void restart(); - //void setRunningCallback(runningChangedCallback cb); - //bool isRunning(); - private: - //void setRunning(bool running); - private: - //QMutex* mutex; - //bool m_IsRunning; - //runningChangedCallback m_RunningChangedCallback; - }; - - /** - * returns "ok" if daemon init failed - * returns errinfo if daemon initialized and started okay - */ - std::string start(); - - // stops the daemon - void stop(); - - // set datadir received from jni - void SetDataDir(std::string jdataDir); - /* - class Worker : public QObject - { - Q_OBJECT - public: - - Worker (DaemonAndroidImpl& daemon); - - private: - - DaemonAndroidImpl& m_Daemon; - - public slots: - void startDaemon(); - void restartDaemon(); - void stopDaemon(); - - signals: - void resultReady(); - }; - - class Controller : public QObject - { - Q_OBJECT - QThread workerThread; - public: - Controller(DaemonAndroidImpl& daemon); - ~Controller(); - private: - DaemonAndroidImpl& m_Daemon; - - public slots: - void handleResults(){} - signals: - void startDaemon(); - void stopDaemon(); - void restartDaemon(); - }; - */ -} -} - -#endif // DAEMON_ANDROID_H diff --git a/android/jni/i2pd_android.cpp b/android/jni/i2pd_android.cpp deleted file mode 100755 index da908648..00000000 --- a/android/jni/i2pd_android.cpp +++ /dev/null @@ -1,94 +0,0 @@ -#include -#include "org_purplei2p_i2pd_I2PD_JNI.h" -#include "DaemonAndroid.h" -#include "RouterContext.h" -#include "Transports.h" - -JNIEXPORT jstring JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_getABICompiledWith - (JNIEnv *env, jclass clazz) { -#if defined(__arm__) - #if defined(__ARM_ARCH_7A__) - #if defined(__ARM_NEON__) - #if defined(__ARM_PCS_VFP) - #define ABI "armeabi-v7a/NEON (hard-float)" - #else - #define ABI "armeabi-v7a/NEON" - #endif - #else - #if defined(__ARM_PCS_VFP) - #define ABI "armeabi-v7a (hard-float)" - #else - #define ABI "armeabi-v7a" - #endif - #endif - #else - #define ABI "armeabi" - #endif - #elif defined(__i386__) - #define ABI "x86" - #elif defined(__x86_64__) - #define ABI "x86_64" - #elif defined(__mips64) /* mips64el-* toolchain defines __mips__ too */ - #define ABI "mips64" - #elif defined(__mips__) - #define ABI "mips" - #elif defined(__aarch64__) - #define ABI "arm64-v8a" - #else - #define ABI "unknown" -#endif - - return env->NewStringUTF(ABI); -} - -JNIEXPORT jstring JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_startDaemon - (JNIEnv *env, jclass clazz) { - return env->NewStringUTF(i2p::android::start().c_str()); -} - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_stopDaemon - (JNIEnv *env, jclass clazz) { - i2p::android::stop(); -} - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_stopAcceptingTunnels - (JNIEnv *env, jclass clazz) { - i2p::context.SetAcceptsTunnels (false); -} - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_startAcceptingTunnels - (JNIEnv *env, jclass clazz) { - i2p::context.SetAcceptsTunnels (true); -} - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_onNetworkStateChanged - (JNIEnv *env, jclass clazz, jboolean isConnected) { - bool isConnectedBool = (bool) isConnected; - i2p::transport::transports.SetOnline (isConnectedBool); -} - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_setDataDir - (JNIEnv *env, jclass clazz, jstring jdataDir) { - - /* - // Method 1: convert UTF-16 jstring to std::string (https://stackoverflow.com/a/41820336) - const jclass stringClass = env->GetObjectClass(jdataDir); - const jmethodID getBytes = env->GetMethodID(stringClass, "getBytes", "(Ljava/lang/String;)[B"); - const jbyteArray stringJbytes = (jbyteArray) env->CallObjectMethod(jdataDir, getBytes, env->NewStringUTF("UTF-8")); - - size_t length = (size_t) env->GetArrayLength(stringJbytes); - jbyte* pBytes = env->GetByteArrayElements(stringJbytes, NULL); - - std::string dataDir = std::string((char *)pBytes, length); - env->ReleaseByteArrayElements(stringJbytes, pBytes, JNI_ABORT); - - env->DeleteLocalRef(stringJbytes); - env->DeleteLocalRef(stringClass); */ - - // Method 2: get string chars and make char array. - auto dataDir = env->GetStringUTFChars(jdataDir, NULL); - env->ReleaseStringUTFChars(jdataDir, dataDir); - - // Set DataDir - i2p::android::SetDataDir(dataDir); -} diff --git a/android/jni/org_purplei2p_i2pd_I2PD_JNI.h b/android/jni/org_purplei2p_i2pd_I2PD_JNI.h deleted file mode 100644 index 6939a153..00000000 --- a/android/jni/org_purplei2p_i2pd_I2PD_JNI.h +++ /dev/null @@ -1,39 +0,0 @@ -/* DO NOT EDIT THIS FILE - it is machine generated */ -#include -/* Header for class org_purplei2p_i2pd_I2PD_JNI */ - -#ifndef _Included_org_purplei2p_i2pd_I2PD_JNI -#define _Included_org_purplei2p_i2pd_I2PD_JNI -#ifdef __cplusplus -extern "C" { -#endif -/* - * Class: org_purplei2p_i2pd_I2PD_JNI - * Method: stringFromJNI - * Signature: ()Ljava/lang/String; - */ -JNIEXPORT jstring JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_getABICompiledWith - (JNIEnv *, jclass); - -JNIEXPORT jstring JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_startDaemon - (JNIEnv *, jclass); - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_stopDaemon - (JNIEnv *, jclass); - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_stopAcceptingTunnels - (JNIEnv *, jclass); - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_startAcceptingTunnels - (JNIEnv *, jclass); - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_onNetworkStateChanged - (JNIEnv * env, jclass clazz, jboolean isConnected); - -JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_setDataDir - (JNIEnv *env, jclass clazz, jstring jdataDir); - -#ifdef __cplusplus -} -#endif -#endif diff --git a/android/proguard-project.txt b/android/proguard-project.txt deleted file mode 100644 index f2fe1559..00000000 --- a/android/proguard-project.txt +++ /dev/null @@ -1,20 +0,0 @@ -# To enable ProGuard in your project, edit project.properties -# to define the proguard.config property as described in that file. -# -# Add project specific ProGuard rules here. -# By default, the flags in this file are appended to flags specified -# in ${sdk.dir}/tools/proguard/proguard-android.txt -# You can edit the include path and order by changing the ProGuard -# include property in project.properties. -# -# For more details, see -# http://developer.android.com/guide/developing/tools/proguard.html - -# Add any project specific keep options here: - -# If your project uses WebView with JS, uncomment the following -# and specify the fully qualified class name to the JavaScript interface -# class: -#-keepclassmembers class fqcn.of.javascript.interface.for.webview { -# public *; -#} diff --git a/android/project.properties b/android/project.properties deleted file mode 100644 index 919ca9c3..00000000 --- a/android/project.properties +++ /dev/null @@ -1,14 +0,0 @@ -# This file is automatically generated by Android Tools. -# Do not modify this file -- YOUR CHANGES WILL BE ERASED! -# -# This file must be checked in Version Control Systems. -# -# To customize properties used by the Ant build system edit -# "ant.properties", and override values to adapt the script to your -# project structure. -# -# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home): -#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt - -# Project target. -target=android-28 diff --git a/android/res/drawable/icon.png b/android/res/drawable/icon.png deleted file mode 100644 index 9a2f7404..00000000 Binary files a/android/res/drawable/icon.png and /dev/null differ diff --git a/android/res/drawable/itoopie_notification_icon.png b/android/res/drawable/itoopie_notification_icon.png deleted file mode 100644 index fa99e7fc..00000000 Binary files a/android/res/drawable/itoopie_notification_icon.png and /dev/null differ diff --git a/android/res/layout/activity_perms_asker.xml b/android/res/layout/activity_perms_asker.xml deleted file mode 100644 index d2d12cb6..00000000 --- a/android/res/layout/activity_perms_asker.xml +++ /dev/null @@ -1,27 +0,0 @@ - - - - - \r\n" + "\r\n" << tr("Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.") << "\r\n\r\n\r\n
\r\n"; + } + + if (dest->GetNumRemoteLeaseSets()) + { + s << "
\r\n\r\n
\r\n" + << "" + << "" + << "" // LeaseSet expiration button column + << "" + << "" + << ""; for(auto& it: dest->GetLeaseSets ()) - s << it.first.ToBase32 () << " " << (int)it.second->GetStoreType () << "
\r\n"; - s << "

\r\n\r\n"; + { + s << "" + << "" + << "" + << "" + << "" + << "\r\n"; + } + s << "
" << tr("Address") << " " << tr("Type") << "" << tr("EncType") << "
" << it.first.ToBase32 () << " ✘ " << (int)it.second->GetStoreType () << "" << (int)it.second->GetEncryptionType () <<"
\r\n
\r\n
\r\n
\r\n"; } else - s << "LeaseSets: 0
\r\n"; + s << "" << tr("LeaseSets") << ": 0
\r\n
\r\n"; + auto pool = dest->GetTunnelPool (); if (pool) { - s << "Inbound tunnels:
\r\n"; + s << "" << tr("Inbound tunnels") << ":
\r\n
\r\n"; for (auto & it : pool->GetInboundTunnels ()) { - it->Print(s); - if(it->LatencyIsKnown()) - s << " ( " << it->GetMeanLatency() << "ms )"; + s << "
"; + // for each tunnel hop if not zero-hop + if (it->GetNumHops ()) + { + it->VisitTunnelHops( + [&s](std::shared_ptr hopIdent) + { + s << "⇒ "; + ShowHop(s, *hopIdent); + s << " "; + } + ); + } + s << "⇒ " << it->GetTunnelID () << ":me"; + if (it->LatencyIsKnown()) + s << " ( " << tr(/* tr: Milliseconds */ "%dms", it->GetMeanLatency()) << " )"; ShowTunnelDetails(s, it->GetState (), false, it->GetNumReceivedBytes ()); + s << "
\r\n"; } s << "
\r\n"; - s << "Outbound tunnels:
\r\n"; + s << "" << tr("Outbound tunnels") << ":
\r\n
\r\n"; for (auto & it : pool->GetOutboundTunnels ()) { - it->Print(s); - if(it->LatencyIsKnown()) - s << " ( " << it->GetMeanLatency() << "ms )"; + s << "
"; + s << it->GetTunnelID () << ":me ⇒"; + // for each tunnel hop if not zero-hop + if (it->GetNumHops ()) + { + it->VisitTunnelHops( + [&s](std::shared_ptr hopIdent) + { + s << " "; + ShowHop(s, *hopIdent); + s << " ⇒"; + } + ); + } + if (it->LatencyIsKnown()) + s << " ( " << tr("%dms", it->GetMeanLatency()) << " )"; ShowTunnelDetails(s, it->GetState (), false, it->GetNumSentBytes ()); + s << "
\r\n"; } } s << "
\r\n"; - s << "Tags
Incoming: " << dest->GetNumIncomingTags () << "
"; + + s << "" << tr("Tags") << "
\r\n" + << tr("Incoming") << ": " << dest->GetNumIncomingTags () << "
\r\n"; if (!dest->GetSessions ().empty ()) { std::stringstream tmp_s; uint32_t out_tags = 0; for (const auto& it: dest->GetSessions ()) { - tmp_s << i2p::client::context.GetAddressBook ().ToAddress(it.first) << " " << it.second->GetNumOutgoingTags () << "
\r\n"; - out_tags = out_tags + it.second->GetNumOutgoingTags (); + tmp_s << "" << i2p::client::context.GetAddressBook ().ToAddress(it.first) << "" << it.second->GetNumOutgoingTags () << "\r\n"; + out_tags += it.second->GetNumOutgoingTags (); } - s << "
\r\n\r\n

\r\n" << tmp_s.str () << "

\r\n
\r\n"; + s << "
\r\n" + << "\r\n" + << "
\r\n" + << "\r\n\r\n" + << "\r\n" << tmp_s.str () << "
" << tr("Destination") << "" << tr("Amount") << "
\r\n
\r\n
\r\n"; } else - s << "Outgoing: 0
\r\n"; + s << tr("Outgoing") << ": 0
\r\n"; s << "
\r\n"; + + auto numECIESx25519Tags = dest->GetNumIncomingECIESx25519Tags (); + if (numECIESx25519Tags > 0) { + s << "ECIESx25519
\r\n" << tr("Incoming Tags") << ": " << numECIESx25519Tags << "
\r\n"; + if (!dest->GetECIESx25519Sessions ().empty ()) + { + std::stringstream tmp_s; uint32_t ecies_sessions = 0; + for (const auto& it: dest->GetECIESx25519Sessions ()) { + tmp_s << "" << i2p::client::context.GetAddressBook ().ToAddress(it.second->GetDestination ()) << "" << it.second->GetState () << "\r\n"; + ecies_sessions++; + } + s << "
\r\n" + << "\r\n" + << "
\r\n\r\n" + << "\r\n" + << "\r\n" << tmp_s.str () << "
" << tr("Destination") << "" << tr("Status") << "
\r\n
\r\n
\r\n"; + } else + s << tr("Tags sessions") << ": 0
\r\n"; + s << "
\r\n"; + } } - void ShowLocalDestination (std::stringstream& s, const std::string& b32) + void ShowLocalDestination (std::stringstream& s, const std::string& b32, uint32_t token) { - s << "Local Destination:
\r\n
\r\n"; + s << "" << tr("Local Destination") << ":
\r\n
\r\n"; i2p::data::IdentHash ident; ident.FromBase32 (b32); auto dest = i2p::client::context.FindLocalDestination (ident); + if (dest) { - ShowLeaseSetDestination (s, dest); - // show streams - s << "\r\n"; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << ""; - s << "\r\n"; + ShowLeaseSetDestination (s, dest, token); + + // Print table with streams information + s << "
Streams
StreamIDDestinationSentReceivedOutInBufRTTWindowStatus
\r\n\r\n\r\n" + << "" + << "" // Stream closing button column + << "" + << "" + << "" + << "" + << "" + << "" + << "" + << "" + << "" + << "\r\n\r\n\r\n"; for (const auto& it: dest->GetAllStreams ()) { + auto streamDest = i2p::client::context.GetAddressBook ().ToAddress(it->GetRemoteIdentity ()); + std::string streamDestShort = streamDest.substr(0,12) + "….b32.i2p"; s << ""; - s << ""; - s << ""; + s << ""; + if (it->GetRecvStreamID ()) { + s << ""; + } else { + s << ""; s << ""; s << ""; s << ""; @@ -433,236 +618,313 @@ namespace http { s << ""; s << "\r\n"; } - s << "
" + << tr("Streams") + << "
StreamID DestinationSentReceivedOutInBufRTTWindowStatus
" << it->GetSendStreamID () << "" << i2p::client::context.GetAddressBook ().ToAddress(it->GetRemoteIdentity ()) << "" << it->GetRecvStreamID () << " ✘ "; + } + s << "" << streamDestShort << "" << it->GetNumSentBytes () << "" << it->GetNumReceivedBytes () << "" << it->GetSendQueueSize () << "" << (int)it->GetStatus () << "
"; + s << "\r\n"; } + else + ShowError(s, tr("Such destination is not found")); } - static void ShowI2CPLocalDestination (std::stringstream& s, const std::string& id) + void ShowI2CPLocalDestination (std::stringstream& s, const std::string& id) { auto i2cpServer = i2p::client::context.GetI2CPServer (); if (i2cpServer) { - s << "I2CP Local Destination:
\r\n
\r\n"; + s << "I2CP " << tr("Local Destination") << ":
\r\n
\r\n"; auto it = i2cpServer->GetSessions ().find (std::stoi (id)); if (it != i2cpServer->GetSessions ().end ()) - ShowLeaseSetDestination (s, it->second->GetDestination ()); + ShowLeaseSetDestination (s, it->second->GetDestination (), 0); else - ShowError(s, "I2CP session not found"); + ShowError(s, tr("I2CP session not found")); } else - ShowError(s, "I2CP is not enabled"); + ShowError(s, tr("I2CP is not enabled")); } void ShowLeasesSets(std::stringstream& s) { - s << "LeaseSets:
\r\n
\r\n"; - int counter = 1; - // for each lease set - i2p::data::netdb.VisitLeaseSets( - [&s, &counter](const i2p::data::IdentHash dest, std::shared_ptr leaseSet) - { - // create copy of lease set so we extract leases - auto storeType = leaseSet->GetStoreType (); - std::unique_ptr ls; - if (storeType == i2p::data::NETDB_STORE_TYPE_LEASESET) - ls.reset (new i2p::data::LeaseSet (leaseSet->GetBuffer(), leaseSet->GetBufferLen())); - else - ls.reset (new i2p::data::LeaseSet2 (storeType, leaseSet->GetBuffer(), leaseSet->GetBufferLen())); - if (!ls) return; - s << "
\r\n"; - if (!ls->IsValid()) - s << "
!! Invalid !!
\r\n"; - s << "
\r\n"; - s << "\r\n

\r\n"; - s << "Store type: " << (int)storeType << "
\r\n"; - s << "Expires: " << ConvertTime(ls->GetExpirationTime()) << "
\r\n"; - if (storeType == i2p::data::NETDB_STORE_TYPE_LEASESET || storeType == i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2) - { - // leases information is available - auto leases = ls->GetNonExpiredLeases(); - s << "Non Expired Leases: " << leases.size() << "
\r\n"; - for ( auto & l : leases ) + if (i2p::data::netdb.GetNumLeaseSets ()) + { + s << "" << tr("LeaseSets") << ":
\r\n

\r\n"; + int counter = 1; + // for each lease set + i2p::data::netdb.VisitLeaseSets( + [&s, &counter](const i2p::data::IdentHash dest, std::shared_ptr leaseSet) + { + // create copy of lease set so we extract leases + auto storeType = leaseSet->GetStoreType (); + std::unique_ptr ls; + if (storeType == i2p::data::NETDB_STORE_TYPE_LEASESET) + ls.reset (new i2p::data::LeaseSet (leaseSet->GetBuffer(), leaseSet->GetBufferLen())); + else { - s << "Gateway: " << l->tunnelGateway.ToBase64() << "
\r\n"; - s << "TunnelID: " << l->tunnelID << "
\r\n"; - s << "EndDate: " << ConvertTime(l->endDate) << "
\r\n"; + ls.reset (new i2p::data::LeaseSet2 (storeType)); + ls->Update (leaseSet->GetBuffer(), leaseSet->GetBufferLen(), false); } - } - s << "

\r\n
\r\n
\r\n"; - } - ); - // end for each lease set + if (!ls) return; + s << "
IsExpired()) + s << " expired"; // additional css class for expired + s << "\">\r\n"; + if (!ls->IsValid()) + s << "
!! " << tr("Invalid") << " !!
\r\n"; + s << "
\r\n"; + s << "\r\n
\r\n"; + s << "" << tr("Store type") << ": " << (int)storeType << "
\r\n"; + s << "" << tr("Expires") << ": " << ConvertTime(ls->GetExpirationTime()) << "
\r\n"; + if (storeType == i2p::data::NETDB_STORE_TYPE_LEASESET || storeType == i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2) + { + // leases information is available + auto leases = ls->GetNonExpiredLeases(); + s << "" << tr("Non Expired Leases") << ": " << leases.size() << "
\r\n"; + for ( auto & l : leases ) + { + s << "" << tr("Gateway") << ": " << l->tunnelGateway.ToBase64() << "
\r\n"; + s << "" << tr("TunnelID") << ": " << l->tunnelID << "
\r\n"; + s << "" << tr("EndDate") << ": " << ConvertTime(l->endDate) << "
\r\n"; + } + } + s << "
\r\n
\r\n
\r\n"; + } + ); + // end for each lease set + } + else if (!i2p::context.IsFloodfill ()) + { + s << "" << tr("LeaseSets") << ": " << tr(/* Message on LeaseSets page */ "floodfill mode is disabled") << ".
\r\n"; + } + else + { + s << "" << tr("LeaseSets") << ": 0
\r\n"; + } } void ShowTunnels (std::stringstream& s) { - s << "Tunnels:
\r\n
\r\n"; - s << "Queue size: " << i2p::tunnel::tunnels.GetQueueSize () << "
\r\n"; + s << "" << tr("Tunnels") << ":
\r\n"; + s << "" << tr("Queue size") << ": " << i2p::tunnel::tunnels.GetQueueSize () << "
\r\n
\r\n"; + s << "" << tr("TBM Queue size") << ": " << i2p::tunnel::tunnels.GetTBMQueueSize () << "
\r\n
\r\n"; auto ExplPool = i2p::tunnel::tunnels.GetExploratoryPool (); - s << "Inbound tunnels:
\r\n"; + s << "" << tr("Inbound tunnels") << ":
\r\n
\r\n"; for (auto & it : i2p::tunnel::tunnels.GetInboundTunnels ()) { - it->Print(s); - if(it->LatencyIsKnown()) - s << " ( " << it->GetMeanLatency() << "ms )"; + s << "
"; + if (it->GetNumHops ()) + { + it->VisitTunnelHops( + [&s](std::shared_ptr hopIdent) + { + s << "⇒ "; + ShowHop(s, *hopIdent); + s << " "; + } + ); + } + s << "⇒ " << it->GetTunnelID () << ":me"; + if (it->LatencyIsKnown()) + s << " ( " << tr("%dms", it->GetMeanLatency()) << " )"; ShowTunnelDetails(s, it->GetState (), (it->GetTunnelPool () == ExplPool), it->GetNumReceivedBytes ()); + s << "
\r\n"; } - s << "
\r\n"; - s << "Outbound tunnels:
\r\n"; + s << "
\r\n
\r\n"; + s << "" << tr("Outbound tunnels") << ":
\r\n
\r\n"; for (auto & it : i2p::tunnel::tunnels.GetOutboundTunnels ()) { - it->Print(s); - if(it->LatencyIsKnown()) - s << " ( " << it->GetMeanLatency() << "ms )"; + s << "
"; + s << it->GetTunnelID () << ":me ⇒"; + // for each tunnel hop if not zero-hop + if (it->GetNumHops ()) + { + it->VisitTunnelHops( + [&s](std::shared_ptr hopIdent) + { + s << " "; + ShowHop(s, *hopIdent); + s << " ⇒"; + } + ); + } + if (it->LatencyIsKnown()) + s << " ( " << tr("%dms", it->GetMeanLatency()) << " )"; ShowTunnelDetails(s, it->GetState (), (it->GetTunnelPool () == ExplPool), it->GetNumSentBytes ()); + s << "
\r\n"; } - s << "
\r\n"; + s << "
\r\n"; } static void ShowCommands (std::stringstream& s, uint32_t token) { std::string webroot; i2p::config::GetOption("http.webroot", webroot); - /* commands */ - s << "Router Commands
\r\n
\r\n"; - s << " Run peer test
\r\n"; - //s << " Reload config
\r\n"; + + s << "" << tr("Router commands") << "
\r\n
\r\n
\r\n"; + s << " " << tr("Run peer test") << "
\r\n"; + s << " " << tr("Reload tunnels configuration") << "
\r\n"; + if (i2p::context.AcceptsTunnels ()) - s << " Decline transit tunnels
\r\n"; + s << " " << tr("Decline transit tunnels") << "
\r\n"; else - s << " Accept transit tunnels
\r\n"; + s << " " << tr("Accept transit tunnels") << "
\r\n"; + #if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID)) || defined(ANDROID_BINARY)) if (Daemon.gracefulShutdownInterval) - s << " Cancel graceful shutdown
"; + s << " " << tr("Cancel graceful shutdown") << "
\r\n"; else - s << " Start graceful shutdown
\r\n"; + s << " " << tr("Start graceful shutdown") << "
\r\n"; #elif defined(WIN32_APP) if (i2p::util::DaemonWin32::Instance().isGraceful) - s << " Cancel graceful shutdown
"; + s << " " << tr("Cancel graceful shutdown") << "
\r\n"; else - s << " Graceful shutdown
\r\n"; + s << " " << tr("Start graceful shutdown") << "
\r\n"; #endif - s << " Force shutdown
\r\n"; - s << "
\r\nLogging level
\r\n"; - s << " [none] "; - s << " [error] "; - s << " [warn] "; - s << " [info] "; - s << " [debug]
\r\n"; + s << " " << tr("Force shutdown") << "

\r\n"; + s << " " << tr("Reload external CSS styles") << "\r\n"; + s << "
"; + + s << "
\r\n" << tr("Note: any action done here are not persistent and not changes your config files.") << "\r\n
\r\n"; + + auto loglevel = i2p::log::Logger().GetLogLevel(); + s << "" << tr("Logging level") << "
\r\n"; + s << " none \r\n"; + s << " critical \r\n"; + s << " error \r\n"; + s << " warn \r\n"; + s << " info \r\n"; + s << " debug
\r\n
\r\n"; + + uint32_t maxTunnels = i2p::tunnel::tunnels.GetMaxNumTransitTunnels (); + s << "" << tr("Transit tunnels limit") << "
\r\n"; + s << "
\r\n"; + s << " \r\n"; + s << " \r\n"; + s << " \r\n"; + s << " \r\n"; + s << "
\r\n
\r\n"; + + // get current used language + std::string currLang = i2p::client::context.GetLanguage ()->GetLanguage(); + + s << "" + << tr("Change language") + << "
\r\n" + << "
\r\n" + << " \r\n" + << " \r\n" + << " \r\n" + << " \r\n" + << "
\r\n
\r\n"; + } void ShowTransitTunnels (std::stringstream& s) { - s << "Transit tunnels:
\r\n
\r\n"; - for (const auto& it: i2p::tunnel::tunnels.GetTransitTunnels ()) + if (i2p::tunnel::tunnels.CountTransitTunnels()) { - if (std::dynamic_pointer_cast(it)) - s << it->GetTunnelID () << " ⇒ "; - else if (std::dynamic_pointer_cast(it)) - s << " ⇒ " << it->GetTunnelID (); - else - s << " ⇒ " << it->GetTunnelID () << " ⇒ "; - s << " " << it->GetNumTransmittedBytes () << "
\r\n"; + s << "" << tr("Transit Tunnels") << ":
\r\n"; + s << ""; + for (const auto& it: i2p::tunnel::tunnels.GetTransitTunnels ()) + { + if (std::dynamic_pointer_cast(it)) + s << "\r\n"; + } + s << "
⇒ID⇒" << tr("Amount") << "" << tr("Next") << "
" << it->GetTunnelID () << "⇒"; + else if (std::dynamic_pointer_cast(it)) + s << "
⇒" << it->GetTunnelID () << ""; + else + s << "
⇒" << it->GetTunnelID () << "⇒"; + ShowTraffic(s, it->GetNumTransmittedBytes ()); + s << "" << it->GetNextPeerName () << "
\r\n"; + } + else + { + s << "" << tr("Transit Tunnels") << ": " << tr(/* Message on transit tunnels page */ "no transit tunnels currently built") << ".
\r\n"; } } template - static void ShowNTCPTransports (std::stringstream& s, const Sessions& sessions, const std::string name) + static void ShowTransportSessions (std::stringstream& s, const Sessions& sessions, const std::string name) { - std::stringstream tmp_s, tmp_s6; uint16_t cnt = 0, cnt6 = 0; - for (const auto& it: sessions ) + auto comp = [](typename Sessions::mapped_type a, typename Sessions::mapped_type b) + { return a->GetRemoteEndpoint() < b->GetRemoteEndpoint(); }; + std::set sortedSessions(comp); + for (const auto& it : sessions) { - if (it.second && it.second->IsEstablished () && !it.second->GetSocket ().remote_endpoint ().address ().is_v6 ()) + auto ret = sortedSessions.insert(it.second); + if (!ret.second) + LogPrint(eLogError, "HTTPServer: Duplicate remote endpoint detected: ", (*ret.first)->GetRemoteEndpoint()); + } + std::stringstream tmp_s, tmp_s6; uint16_t cnt = 0, cnt6 = 0; + for (const auto& it: sortedSessions) + { + auto endpoint = it->GetRemoteEndpoint (); + if (it && it->IsEstablished () && endpoint.address ().is_v4 ()) { - // incoming connection doesn't have remote RI - if (it.second->IsOutgoing ()) tmp_s << " ⇒ "; - tmp_s << i2p::data::GetIdentHashAbbreviation (it.second->GetRemoteIdentity ()->GetIdentHash ()) << ": " - << it.second->GetSocket ().remote_endpoint().address ().to_string (); - if (!it.second->IsOutgoing ()) tmp_s << " ⇒ "; - tmp_s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]"; - tmp_s << "
\r\n" << std::endl; + tmp_s << "
\r\n"; + if (it->IsOutgoing ()) tmp_s << " ⇒ "; + tmp_s << i2p::data::GetIdentHashAbbreviation (it->GetRemoteIdentity ()->GetIdentHash ()) << ": " + << endpoint.address ().to_string () << ":" << endpoint.port (); + if (!it->IsOutgoing ()) tmp_s << " ⇒ "; + tmp_s << " [" << it->GetNumSentBytes () << ":" << it->GetNumReceivedBytes () << "]"; + if (it->GetRelayTag ()) + tmp_s << " [itag:" << it->GetRelayTag () << "]"; + if (it->GetSendQueueSize () > 0) + tmp_s << " [queue:" << it->GetSendQueueSize () << "]"; + if (it->IsSlow ()) tmp_s << " [slow]"; + tmp_s << "
\r\n" << std::endl; cnt++; } - if (it.second && it.second->IsEstablished () && it.second->GetSocket ().remote_endpoint ().address ().is_v6 ()) + if (it && it->IsEstablished () && endpoint.address ().is_v6 ()) { - if (it.second->IsOutgoing ()) tmp_s6 << " ⇒ "; - tmp_s6 << i2p::data::GetIdentHashAbbreviation (it.second->GetRemoteIdentity ()->GetIdentHash ()) << ": " - << "[" << it.second->GetSocket ().remote_endpoint().address ().to_string () << "]"; - if (!it.second->IsOutgoing ()) tmp_s6 << " ⇒ "; - tmp_s6 << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]"; - tmp_s6 << "
\r\n" << std::endl; + tmp_s6 << "
\r\n"; + if (it->IsOutgoing ()) tmp_s6 << " ⇒ "; + tmp_s6 << i2p::data::GetIdentHashAbbreviation (it->GetRemoteIdentity ()->GetIdentHash ()) << ": " + << "[" << endpoint.address ().to_string () << "]:" << endpoint.port (); + if (!it->IsOutgoing ()) tmp_s6 << " ⇒ "; + tmp_s6 << " [" << it->GetNumSentBytes () << ":" << it->GetNumReceivedBytes () << "]"; + if (it->GetRelayTag ()) + tmp_s6 << " [itag:" << it->GetRelayTag () << "]"; + if (it->GetSendQueueSize () > 0) + tmp_s6 << " [queue:" << it->GetSendQueueSize () << "]"; + tmp_s6 << "
\r\n" << std::endl; cnt6++; } } if (!tmp_s.str ().empty ()) { - s << "
\r\n\r\n

"; - s << tmp_s.str () << "

\r\n
\r\n"; + s << "
\r\n\r\n
" + << tmp_s.str () << "
\r\n
\r\n"; } if (!tmp_s6.str ().empty ()) { - s << "
\r\n\r\n

"; - s << tmp_s6.str () << "

\r\n
\r\n"; + s << "
\r\n\r\n
" + << tmp_s6.str () << "
\r\n
\r\n"; } } void ShowTransports (std::stringstream& s) { - s << "Transports:
\r\n
\r\n"; - auto ntcpServer = i2p::transport::transports.GetNTCPServer (); - if (ntcpServer) - { - auto sessions = ntcpServer->GetNTCPSessions (); - if (!sessions.empty ()) - ShowNTCPTransports (s, sessions, "NTCP"); - } + s << "" << tr("Transports") << ":
\r\n"; auto ntcp2Server = i2p::transport::transports.GetNTCP2Server (); if (ntcp2Server) { auto sessions = ntcp2Server->GetNTCP2Sessions (); if (!sessions.empty ()) - ShowNTCPTransports (s, sessions, "NTCP2"); + ShowTransportSessions (s, sessions, "NTCP2"); } - auto ssuServer = i2p::transport::transports.GetSSUServer (); - if (ssuServer) + auto ssu2Server = i2p::transport::transports.GetSSU2Server (); + if (ssu2Server) { - auto sessions = ssuServer->GetSessions (); + auto sessions = ssu2Server->GetSSU2Sessions (); if (!sessions.empty ()) - { - s << "
\r\n\r\n

"; - for (const auto& it: sessions) - { - auto endpoint = it.second->GetRemoteEndpoint (); - if (it.second->IsOutgoing ()) s << " ⇒ "; - s << endpoint.address ().to_string () << ":" << endpoint.port (); - if (!it.second->IsOutgoing ()) s << " ⇒ "; - s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]"; - if (it.second->GetRelayTag ()) - s << " [itag:" << it.second->GetRelayTag () << "]"; - s << "
\r\n" << std::endl; - } - s << "

\r\n
\r\n"; - } - auto sessions6 = ssuServer->GetSessionsV6 (); - if (!sessions6.empty ()) - { - s << "
\r\n\r\n

"; - for (const auto& it: sessions6) - { - auto endpoint = it.second->GetRemoteEndpoint (); - if (it.second->IsOutgoing ()) s << " ⇒ "; - s << "[" << endpoint.address ().to_string () << "]:" << endpoint.port (); - if (!it.second->IsOutgoing ()) s << " ⇒ "; - s << " [" << it.second->GetNumSentBytes () << ":" << it.second->GetNumReceivedBytes () << "]"; - if (it.second->GetRelayTag ()) - s << " [itag:" << it.second->GetRelayTag () << "]"; - s << "
\r\n" << std::endl; - } - s << "

\r\n
\r\n"; - } + ShowTransportSessions (s, sessions, "SSU2"); } } @@ -670,133 +932,150 @@ namespace http { { std::string webroot; i2p::config::GetOption("http.webroot", webroot); auto sam = i2p::client::context.GetSAMBridge (); - if (!sam) { - ShowError(s, "SAM disabled"); + if (!sam) + { + ShowError(s, tr("SAM disabled")); return; } - s << "SAM Sessions:
\r\n
\r\n"; - for (auto& it: sam->GetSessions ()) + + if (sam->GetSessions ().size ()) { - auto& name = it.second->localDestination->GetNickname (); - s << ""; - s << name << " (" << it.first << ")
\r\n" << std::endl; + s << "" << tr("SAM sessions") << ":
\r\n
\r\n"; + for (auto& it: sam->GetSessions ()) + { + auto& name = it.second->GetLocalDestination ()->GetNickname (); + s << "
"; + s << name << " (" << it.first << ")
\r\n" << std::endl; + } + s << "
\r\n"; } + else + s << "" << tr("SAM sessions") << ": " << tr(/* Message on SAM sessions page */ "no sessions currently running") << ".
\r\n"; } - static void ShowSAMSession (std::stringstream& s, const std::string& id) + void ShowSAMSession (std::stringstream& s, const std::string& id) { - std::string webroot; i2p::config::GetOption("http.webroot", webroot); - s << "SAM Session:
\r\n
\r\n"; auto sam = i2p::client::context.GetSAMBridge (); if (!sam) { - ShowError(s, "SAM disabled"); + ShowError(s, tr("SAM disabled")); return; } + auto session = sam->FindSession (id); if (!session) { - ShowError(s, "SAM session not found"); + ShowError(s, tr("SAM session not found")); return; } - auto& ident = session->localDestination->GetIdentHash(); - s << ""; - s << i2p::client::context.GetAddressBook ().ToAddress(ident) << "
\r\n"; + + std::string webroot; i2p::config::GetOption("http.webroot", webroot); + s << "" << tr("SAM Session") << ":
\r\n
\r\n"; + auto& ident = session->GetLocalDestination ()->GetIdentHash(); + s << "
"; + s << i2p::client::context.GetAddressBook ().ToAddress(ident) << "
\r\n"; s << "
\r\n"; - s << "Streams:
\r\n"; + s << "" << tr("Streams") << ":
\r\n
\r\n"; for (const auto& it: sam->ListSockets(id)) { + s << "
"; switch (it->GetSocketType ()) { case i2p::client::eSAMSocketTypeSession : s << "session"; break; case i2p::client::eSAMSocketTypeStream : s << "stream"; break; case i2p::client::eSAMSocketTypeAcceptor : s << "acceptor"; break; + case i2p::client::eSAMSocketTypeForward : s << "forward"; break; default: s << "unknown"; break; } s << " [" << it->GetSocket ().remote_endpoint() << "]"; - s << "
\r\n"; + s << "
\r\n"; } + s << "
\r\n"; } void ShowI2PTunnels (std::stringstream& s) { std::string webroot; i2p::config::GetOption("http.webroot", webroot); - s << "Client Tunnels:
\r\n
\r\n"; - for (auto& it: i2p::client::context.GetClientTunnels ()) - { - auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - s << ""; - s << it.second->GetName () << " ⇐ "; - s << i2p::client::context.GetAddressBook ().ToAddress(ident); - s << "
\r\n"<< std::endl; - } + + auto& clientTunnels = i2p::client::context.GetClientTunnels (); auto httpProxy = i2p::client::context.GetHttpProxy (); - if (httpProxy) - { - auto& ident = httpProxy->GetLocalDestination ()->GetIdentHash(); - s << ""; - s << "HTTP Proxy" << " ⇐ "; - s << i2p::client::context.GetAddressBook ().ToAddress(ident); - s << "
\r\n"<< std::endl; - } auto socksProxy = i2p::client::context.GetSocksProxy (); - if (socksProxy) + if (!clientTunnels.empty () || httpProxy || socksProxy) { - auto& ident = socksProxy->GetLocalDestination ()->GetIdentHash(); - s << ""; - s << "SOCKS Proxy" << " ⇐ "; - s << i2p::client::context.GetAddressBook ().ToAddress(ident); - s << "
\r\n"<< std::endl; + s << "" << tr("Client Tunnels") << ":
\r\n
\r\n"; + if (!clientTunnels.empty ()) + { + for (auto& it: clientTunnels) + { + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + s << "
"; + s << it.second->GetName () << " ⇐ "; + s << i2p::client::context.GetAddressBook ().ToAddress(ident); + s << "
\r\n"<< std::endl; + } + } + if (httpProxy) + { + auto& ident = httpProxy->GetLocalDestination ()->GetIdentHash(); + s << "
"; + s << "HTTP " << tr("Proxy") << " ⇐ "; + s << i2p::client::context.GetAddressBook ().ToAddress(ident); + s << "
\r\n"<< std::endl; + } + if (socksProxy) + { + auto& ident = socksProxy->GetLocalDestination ()->GetIdentHash(); + s << "
"; + s << "SOCKS " << tr("Proxy") << " ⇐ "; + s << i2p::client::context.GetAddressBook ().ToAddress(ident); + s << "
\r\n"<< std::endl; + } + s << "
\r\n"; } + auto& serverTunnels = i2p::client::context.GetServerTunnels (); if (!serverTunnels.empty ()) { - s << "
\r\nServer Tunnels:
\r\n
\r\n"; + s << "
\r\n" << tr("Server Tunnels") << ":
\r\n
\r\n"; for (auto& it: serverTunnels) { auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - s << ""; + s << "
"; s << it.second->GetName () << " ⇒ "; s << i2p::client::context.GetAddressBook ().ToAddress(ident); s << ":" << it.second->GetLocalPort (); - s << "
\r\n"<< std::endl; + s << "
\r\n"<< std::endl; } + s << "
\r\n"; } + auto& clientForwards = i2p::client::context.GetClientForwards (); if (!clientForwards.empty ()) { - s << "
\r\nClient Forwards:
\r\n
\r\n"; + s << "
\r\n" << tr("Client Forwards") << ":
\r\n
\r\n"; for (auto& it: clientForwards) { auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - s << ""; + s << "
"; s << it.second->GetName () << " ⇐ "; s << i2p::client::context.GetAddressBook ().ToAddress(ident); - s << "
\r\n"<< std::endl; + s << "
\r\n"<< std::endl; } + s << "
\r\n"; } auto& serverForwards = i2p::client::context.GetServerForwards (); if (!serverForwards.empty ()) { - s << "
\r\nServer Forwards:
\r\n
\r\n"; + s << "
\r\n" << tr("Server Forwards") << ":
\r\n
\r\n"; for (auto& it: serverForwards) { auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - s << ""; + s << "
"; s << it.second->GetName () << " ⇐ "; s << i2p::client::context.GetAddressBook ().ToAddress(ident); - s << "
\r\n"<< std::endl; + s << "
\r\n"<< std::endl; } + s << "
\r\n"; } } - std::string ConvertTime (uint64_t time) - { - ldiv_t divTime = ldiv(time,1000); - time_t t = divTime.quot; - struct tm *tm = localtime(&t); - char date[128]; - snprintf(date, sizeof(date), "%02d/%02d/%d %02d:%02d:%02d.%03ld", tm->tm_mday, tm->tm_mon + 1, tm->tm_year + 1900, tm->tm_hour, tm->tm_min, tm->tm_sec, divTime.rem); - return date; - } - HTTPConnection::HTTPConnection (std::string hostname, std::shared_ptr socket): m_Socket (socket), m_BufferLen (0), expected_host(hostname) { @@ -809,8 +1088,8 @@ namespace http { void HTTPConnection::Receive () { m_Socket->async_read_some (boost::asio::buffer (m_Buffer, HTTP_CONNECTION_BUFFER_SIZE), - std::bind(&HTTPConnection::HandleReceive, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); + std::bind(&HTTPConnection::HandleReceive, shared_from_this (), + std::placeholders::_1, std::placeholders::_2)); } void HTTPConnection::HandleReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred) @@ -850,7 +1129,8 @@ namespace http { m_Socket->close (); } - bool HTTPConnection::CheckAuth (const HTTPReq & req) { + bool HTTPConnection::CheckAuth (const HTTPReq & req) + { /* method #1: http://user:pass@127.0.0.1:7070/ */ if (req.uri.find('@') != std::string::npos) { URL url; @@ -865,7 +1145,7 @@ namespace http { if (expected == provided) return true; } - LogPrint(eLogWarning, "HTTPServer: auth failure from ", m_Socket->remote_endpoint().address ()); + LogPrint(eLogWarning, "HTTPServer: Auth failure from ", m_Socket->remote_endpoint().address ()); return false; } @@ -875,7 +1155,7 @@ namespace http { std::string content; HTTPRes res; - LogPrint(eLogDebug, "HTTPServer: request: ", req.uri); + LogPrint(eLogDebug, "HTTPServer: Request: ", req.uri); if (needAuth && !CheckAuth(req)) { res.code = 401; @@ -883,6 +1163,7 @@ namespace http { SendReply(res, content); return; } + bool strictheaders; i2p::config::GetOption("http.strictheaders", strictheaders); if (strictheaders) @@ -905,14 +1186,15 @@ namespace http { return; } } - // Html5 head start + + // HTML head start ShowPageHead (s); if (req.uri.find("page=") != std::string::npos) { HandlePage (req, res, s); } else if (req.uri.find("cmd=") != std::string::npos) { HandleCommand (req, res, s); } else { - ShowStatus (s, true, i2p::http::OutputFormatEnum::forWebConsole); + ShowStatus (s, true, i2p::http::OutputFormatEnum::forWebConsole); res.add_header("Refresh", "10"); } ShowPageTail (s); @@ -923,6 +1205,24 @@ namespace http { } std::map HTTPConnection::m_Tokens; + + uint32_t HTTPConnection::CreateToken () + { + uint32_t token; + RAND_bytes ((uint8_t *)&token, 4); + token &= 0x7FFFFFFF; // clear first bit + auto ts = i2p::util::GetSecondsSinceEpoch (); + for (auto it = m_Tokens.begin (); it != m_Tokens.end (); ) + { + if (ts > it->second + TOKEN_EXPIRATION_TIMEOUT) + it = m_Tokens.erase (it); + else + ++it; + } + m_Tokens[token] = ts; + return token; + } + void HTTPConnection::HandlePage (const HTTPReq& req, HTTPRes& res, std::stringstream& s) { std::map params; @@ -939,18 +1239,7 @@ namespace http { ShowTunnels (s); else if (page == HTTP_PAGE_COMMANDS) { - uint32_t token; - RAND_bytes ((uint8_t *)&token, 4); - token &= 0x7FFFFFFF; // clear first bit - auto ts = i2p::util::GetSecondsSinceEpoch (); - for (auto it = m_Tokens.begin (); it != m_Tokens.end (); ) - { - if (ts > it->second + TOKEN_EXPIRATION_TIMEOUT) - it = m_Tokens.erase (it); - else - ++it; - } - m_Tokens[token] = ts; + uint32_t token = CreateToken (); ShowCommands (s, token); } else if (page == HTTP_PAGE_TRANSIT_TUNNELS) @@ -958,7 +1247,10 @@ namespace http { else if (page == HTTP_PAGE_LOCAL_DESTINATIONS) ShowLocalDestinations (s); else if (page == HTTP_PAGE_LOCAL_DESTINATION) - ShowLocalDestination (s, params["b32"]); + { + uint32_t token = CreateToken (); + ShowLocalDestination (s, params["b32"], token); + } else if (page == HTTP_PAGE_I2CP_LOCAL_DESTINATION) ShowI2CPLocalDestination (s, params["i2cp_id"]); else if (page == HTTP_PAGE_SAM_SESSIONS) @@ -971,7 +1263,7 @@ namespace http { ShowLeasesSets(s); else { res.code = 400; - ShowError(s, "Unknown page: " + page); + ShowError(s, std::string (tr("Unknown page")) + ": " + page); // TODO return; } } @@ -984,72 +1276,216 @@ namespace http { url.parse(req.uri); url.parse_query(params); + std::string webroot; i2p::config::GetOption("http.webroot", webroot); + std::string redirect = std::to_string(COMMAND_REDIRECT_TIMEOUT) + "; url=" + webroot + "?page=commands"; std::string token = params["token"]; + if (token.empty () || m_Tokens.find (std::stoi (token)) == m_Tokens.end ()) { - ShowError(s, "Invalid token"); + ShowError(s, tr("Invalid token")); return; } std::string cmd = params["cmd"]; if (cmd == HTTP_COMMAND_RUN_PEER_TEST) i2p::transport::transports.PeerTest (); - else if (cmd == HTTP_COMMAND_RELOAD_CONFIG) + else if (cmd == HTTP_COMMAND_RELOAD_TUNNELS_CONFIG) i2p::client::context.ReloadConfig (); else if (cmd == HTTP_COMMAND_ENABLE_TRANSIT) i2p::context.SetAcceptsTunnels (true); else if (cmd == HTTP_COMMAND_DISABLE_TRANSIT) i2p::context.SetAcceptsTunnels (false); - else if (cmd == HTTP_COMMAND_SHUTDOWN_START) { + else if (cmd == HTTP_COMMAND_SHUTDOWN_START) + { i2p::context.SetAcceptsTunnels (false); #if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID)) || defined(ANDROID_BINARY)) Daemon.gracefulShutdownInterval = 10*60; #elif defined(WIN32_APP) i2p::win32::GracefulShutdown (); #endif - } else if (cmd == HTTP_COMMAND_SHUTDOWN_CANCEL) { + } + else if (cmd == HTTP_COMMAND_SHUTDOWN_CANCEL) + { i2p::context.SetAcceptsTunnels (true); -#if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID)) || defined(ANDROID_BINARY)) +#if ((!defined(WIN32) && !defined(QT_GUI_LIB) && !defined(ANDROID)) || defined(ANDROID_BINARY)) Daemon.gracefulShutdownInterval = 0; #elif defined(WIN32_APP) i2p::win32::StopGracefulShutdown (); #endif - } else if (cmd == HTTP_COMMAND_SHUTDOWN_NOW) { + } + else if (cmd == HTTP_COMMAND_SHUTDOWN_NOW) + { #ifndef WIN32_APP Daemon.running = false; #else i2p::win32::StopWin32App (); #endif - } else if (cmd == HTTP_COMMAND_LOGLEVEL){ + } + else if (cmd == HTTP_COMMAND_LOGLEVEL) + { std::string level = params["level"]; SetLogLevel (level); - } else { - res.code = 400; - ShowError(s, "Unknown command: " + cmd); + } + else if (cmd == HTTP_COMMAND_KILLSTREAM) + { + std::string b32 = params["b32"]; + uint32_t streamID = std::stoul(params["streamID"], nullptr); + + i2p::data::IdentHash ident; + ident.FromBase32 (b32); + auto dest = i2p::client::context.FindLocalDestination (ident); + + if (streamID) + { + if (dest) + { + if (dest->DeleteStream (streamID)) + s << "" << tr("SUCCESS") << ": " << tr("Stream closed") << "
\r\n
\r\n"; + else + s << "" << tr("ERROR") << ": " << tr("Stream not found or already was closed") << "
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("Destination not found") << "
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("StreamID can't be null") << "
\r\n
\r\n"; + + s << "" << tr("Return to destination page") << "
\r\n"; + s << "

" << tr("You will be redirected in %d seconds", COMMAND_REDIRECT_TIMEOUT) << ""; + redirect = std::to_string(COMMAND_REDIRECT_TIMEOUT) + "; url=" + webroot + "?page=local_destination&b32=" + b32; + res.add_header("Refresh", redirect.c_str()); return; } - std::string webroot; i2p::config::GetOption("http.webroot", webroot); - std::string redirect = "5; url=" + webroot + "?page=commands"; - s << "SUCCESS: Command accepted

\r\n"; - s << "Back to commands list
\r\n"; - s << "

You will be redirected in 5 seconds"; + else if (cmd == HTTP_COMMAND_EXPIRELEASE) + { + std::string b32 = params["b32"]; + std::string lease = params["lease"]; + + i2p::data::IdentHash ident, leaseident; + ident.FromBase32 (b32); + leaseident.FromBase32 (lease); + auto dest = i2p::client::context.FindLocalDestination (ident); + + if (dest) + { + auto leaseset = dest->FindLeaseSet (leaseident); + if (leaseset) + { + leaseset->ExpireLease (); + s << "" << tr("SUCCESS") << ": " << tr("LeaseSet expiration time updated") << "
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("LeaseSet is not found or already expired") << "
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("Destination not found") << "
\r\n
\r\n"; + + s << "" << tr("Return to destination page") << "
\r\n"; + s << "

" << tr("You will be redirected in %d seconds", COMMAND_REDIRECT_TIMEOUT) << ""; + redirect = std::to_string(COMMAND_REDIRECT_TIMEOUT) + "; url=" + webroot + "?page=local_destination&b32=" + b32; + res.add_header("Refresh", redirect.c_str()); + return; + } + else if (cmd == HTTP_COMMAND_LIMITTRANSIT) + { + uint32_t limit = std::stoul(params["limit"], nullptr); + if (limit > 0 && limit <= TRANSIT_TUNNELS_LIMIT) + i2p::tunnel::tunnels.SetMaxNumTransitTunnels (limit); + else { + s << "" << tr("ERROR") << ": " << tr("Transit tunnels count must not exceed %d", TRANSIT_TUNNELS_LIMIT) << "\r\n
\r\n
\r\n"; + s << "" << tr("Back to commands list") << "\r\n
\r\n"; + s << "

" << tr("You will be redirected in %d seconds", COMMAND_REDIRECT_TIMEOUT) << ""; + res.add_header("Refresh", redirect.c_str()); + return; + } + } + else if (cmd == HTTP_COMMAND_GET_REG_STRING) + { + std::string b32 = params["b32"]; + std::string name = i2p::http::UrlDecode(params["name"]); + + i2p::data::IdentHash ident; + ident.FromBase32 (b32); + auto dest = i2p::client::context.FindLocalDestination (ident); + + if (dest) + { + std::size_t pos; + pos = name.find (".i2p"); + if (pos == (name.length () - 4)) + { + pos = name.find (".b32.i2p"); + if (pos == std::string::npos) + { + auto signatureLen = dest->GetIdentity ()->GetSignatureLen (); + uint8_t * signature = new uint8_t[signatureLen]; + std::stringstream out; + + out << name << "=" << dest->GetIdentity ()->ToBase64 (); + dest->Sign ((uint8_t *)out.str ().c_str (), out.str ().length (), signature); + auto sig = i2p::data::ByteStreamToBase64 (signature, signatureLen); + out << "#!sig=" << sig; + s << "" << tr("SUCCESS") << ":
\r\n

\r\n" + "\r\n
\r\n
\r\n" + "" << tr("Register at reg.i2p") << ":\r\n
\r\n" + "" << tr("Description") << ":\r\n\r\n" + "\r\n" + "
\r\n
\r\n"; + delete[] signature; + } + else + s << "" << tr("ERROR") << ": " << tr("Domain can't end with .b32.i2p") << "\r\n
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("Domain must end with .i2p") << "\r\n
\r\n
\r\n"; + } + else + s << "" << tr("ERROR") << ": " << tr("Such destination is not found") << "\r\n
\r\n
\r\n"; + + s << "" << tr("Return to destination page") << "\r\n"; + return; + } + else if (cmd == HTTP_COMMAND_SETLANGUAGE) + { + std::string lang = params["lang"]; + std::string currLang = i2p::client::context.GetLanguage ()->GetLanguage(); + + if (currLang.compare(lang) != 0) + i2p::i18n::SetLanguage(lang); + } + else if (cmd == HTTP_COMMAND_RELOAD_CSS) + { + LoadExtCSS(); + } + else + { + res.code = 400; + ShowError(s, std::string (tr("Unknown command")) + ": " + cmd); // TODO + return; + } + + s << "" << tr("SUCCESS") << ": " << tr("Command accepted") << "

\r\n"; + s << "" << tr("Back to commands list") << "
\r\n"; + s << "

" << tr("You will be redirected in %d seconds", COMMAND_REDIRECT_TIMEOUT) << ""; res.add_header("Refresh", redirect.c_str()); } void HTTPConnection::SendReply (HTTPRes& reply, std::string& content) { reply.add_header("X-Frame-Options", "SAMEORIGIN"); + reply.add_header("X-Content-Type-Options", "nosniff"); + reply.add_header("X-XSS-Protection", "1; mode=block"); reply.add_header("Content-Type", "text/html"); reply.body = content; m_SendBuffer = reply.to_string(); - boost::asio::async_write (*m_Socket, boost::asio::buffer(m_SendBuffer), + boost::asio::async_write (*m_Socket, boost::asio::buffer(m_SendBuffer), boost::asio::transfer_all (), std::bind (&HTTPConnection::Terminate, shared_from_this (), std::placeholders::_1)); } HTTPServer::HTTPServer (const std::string& address, int port): - m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service), - m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint (boost::asio::ip::address::from_string(address), port)), + m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service.get_executor ()), + m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint (boost::asio::ip::make_address(address), port)), m_Hostname(address) { } @@ -1076,18 +1512,27 @@ namespace http { pass[i] = alnum[random[i] % (sizeof(alnum) - 1)]; } i2p::config::SetOption("http.pass", pass); - LogPrint(eLogInfo, "HTTPServer: password set to ", pass); + LogPrint(eLogInfo, "HTTPServer: Password set to ", pass); } + m_IsRunning = true; - m_Thread = std::unique_ptr(new std::thread (std::bind (&HTTPServer::Run, this))); + m_Thread.reset (new std::thread (std::bind (&HTTPServer::Run, this))); m_Acceptor.listen (); Accept (); + + LoadExtCSS(); } void HTTPServer::Stop () { m_IsRunning = false; + + boost::system::error_code ec; + m_Acceptor.cancel(ec); + if (ec) + LogPrint (eLogDebug, "HTTPServer: Error while cancelling operations on acceptor: ", ec.message ()); m_Acceptor.close(); + m_Service.stop (); if (m_Thread) { @@ -1098,6 +1543,8 @@ namespace http { void HTTPServer::Run () { + i2p::util::SetThreadName("Webconsole"); + while (m_IsRunning) { try @@ -1106,7 +1553,7 @@ namespace http { } catch (std::exception& ex) { - LogPrint (eLogError, "HTTPServer: runtime exception: ", ex.what ()); + LogPrint (eLogError, "HTTPServer: Runtime exception: ", ex.what ()); } } } @@ -1114,22 +1561,20 @@ namespace http { void HTTPServer::Accept () { auto newSocket = std::make_shared (m_Service); - m_Acceptor.async_accept (*newSocket, boost::bind (&HTTPServer::HandleAccept, this, - boost::asio::placeholders::error, newSocket)); + m_Acceptor.async_accept (*newSocket, std::bind (&HTTPServer::HandleAccept, this, + std::placeholders::_1, newSocket)); } void HTTPServer::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr newSocket) { - if (ecode) + if (!ecode) + CreateConnection(newSocket); + else { - if(newSocket) newSocket->close(); - LogPrint(eLogError, "HTTP Server: error handling accept ", ecode.message()); - if(ecode != boost::asio::error::operation_aborted) - Accept(); - return; + if (newSocket) newSocket->close(); + LogPrint(eLogError, "HTTP Server: Error handling accept: ", ecode.message()); } - CreateConnection(newSocket); Accept (); } diff --git a/daemon/HTTPServer.h b/daemon/HTTPServer.h index 3d32ed2b..38b790d4 100644 --- a/daemon/HTTPServer.h +++ b/daemon/HTTPServer.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef HTTP_SERVER_H__ #define HTTP_SERVER_H__ @@ -16,6 +24,8 @@ namespace http { const size_t HTTP_CONNECTION_BUFFER_SIZE = 8192; const int TOKEN_EXPIRATION_TIMEOUT = 30; // in seconds + const int COMMAND_REDIRECT_TIMEOUT = 5; // in seconds + const int TRANSIT_TUNNELS_LIMIT = 1000000; class HTTPConnection: public std::enable_shared_from_this { @@ -35,6 +45,7 @@ namespace http void HandlePage (const HTTPReq & req, HTTPRes & res, std::stringstream& data); void HandleCommand (const HTTPReq & req, HTTPRes & res, std::stringstream& data); void SendReply (HTTPRes & res, std::string & content); + uint32_t CreateToken (); private: @@ -72,23 +83,25 @@ namespace http bool m_IsRunning; std::unique_ptr m_Thread; - boost::asio::io_service m_Service; - boost::asio::io_service::work m_Work; + boost::asio::io_context m_Service; + boost::asio::executor_work_guard m_Work; boost::asio::ip::tcp::acceptor m_Acceptor; std::string m_Hostname; }; - //all the below functions are also used by Qt GUI, see mainwindow.cpp -> getStatusPageHtml - enum OutputFormatEnum { forWebConsole, forQtUi }; - void ShowStatus (std::stringstream& s, bool includeHiddenContent, OutputFormatEnum outputFormat); - void ShowLocalDestinations (std::stringstream& s); - void ShowLeasesSets(std::stringstream& s); - void ShowTunnels (std::stringstream& s); - void ShowTransitTunnels (std::stringstream& s); - void ShowTransports (std::stringstream& s); - void ShowSAMSessions (std::stringstream& s); - void ShowI2PTunnels (std::stringstream& s); - void ShowLocalDestination (std::stringstream& s, const std::string& b32); + //all the below functions are also used by Qt GUI, see mainwindow.cpp -> getStatusPageHtml + enum OutputFormatEnum { forWebConsole, forQtUi }; + void ShowStatus (std::stringstream& s, bool includeHiddenContent, OutputFormatEnum outputFormat); + void ShowLocalDestinations (std::stringstream& s); + void ShowLeasesSets(std::stringstream& s); + void ShowTunnels (std::stringstream& s); + void ShowTransitTunnels (std::stringstream& s); + void ShowTransports (std::stringstream& s); + void ShowSAMSessions (std::stringstream& s); + void ShowI2PTunnels (std::stringstream& s); + void ShowLocalDestination (std::stringstream& s, const std::string& b32, uint32_t token); + void ShowSAMSession (std::stringstream& s, const std::string& id); + void ShowI2CPLocalDestination (std::stringstream& s, const std::string& id); } // http } // i2p diff --git a/daemon/HTTPServerResources.h b/daemon/HTTPServerResources.h new file mode 100644 index 00000000..1e5b6f75 --- /dev/null +++ b/daemon/HTTPServerResources.h @@ -0,0 +1,97 @@ +/* +* Copyright (c) 2013-2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef HTTP_SERVER_RESOURCES_H__ +#define HTTP_SERVER_RESOURCES_H__ + +namespace i2p +{ +namespace http +{ + const std::string itoopieFavicon = + "data:image/png;base64," + "iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAARnQU1BAACx" + "jwv8YQUAAAAJcEhZcwAALiIAAC4iAari3ZIAAAAHdElNRQfgCQsUNSZrkhi1AAAAGXRFWHRTb2Z0" + "d2FyZQBwYWludC5uZXQgNC4wLjEyQwRr7AAAAoJJREFUOE9jwAUqi4Q1oEwwcDTV1+5sETaBclGB" + "vb09C5QJB6kWpvFQJoOCeLC5kmjEHCgXE2SlyETLi3h6QrkM4VL+ssWSCZUgtopITLKqaOotRTEn" + "cbAkLqAkGtOqLBLVAWLXyWSVFkkmRiqLxuaqiWb/VBYJMAYrwgckJY25VEUzniqKhjU2y+RtCRSP" + "6lUXy/1jIBV5tlYxZUaFVMq2NInwIi9hO8fSfOEAqDZUoCwal6MulvOvyS7gi69K4j9zxZT/m0ps" + "/28ptvvvquXXryIa7QYMMdTwqi0WNtVi0GIDseXl7TnUxFKfnGlxAGp0+D8j2eH/8Ub7/9e7nf7X" + "+Af/B7rwt6pI0h0l0WhQADOC9DBkhSirpImHNVZKp24ukkyoshGLnN8d5fA/y13t/44Kq/8hlnL/" + "z7fZ/58f6vcxSNpbVUVFhV1RLNBVTsQzVYZPSwhsCAhkiIfpNMrkbO6TLf071Sfk/5ZSi/+7q6z/" + "P5ns+v9mj/P/CpuI/20y+aeNGYxZoVoYGmsF3aFMBAAZlCwftnF9ke3//bU2//fXWP8/UGv731Am" + "+V+DdNblSqnUYqhSTKAiYSOqJBrVqiaa+S3UNPr/gmyH/xuKXf63hnn/B8bIP0UxHfEyyeSNQKVM" + "EB1AEB2twhcTLp+gIBJUoyKasEpVJHmqskh8qryovUG/ffCHHRU2q/Tk/YuB6eGPsbExa7ZkpLu1" + "oLEcVDtuUCgV1w60rQzElpRUE1EVSX0BYidHiInXF4nagNhYQW60EF+ApH1ktni0A1SIITSUgVlZ" + "JHYnlIsfzJjIp9xZKswL5YKBHL+coKJoRDaUSzoozxHVrygQU4JykQADAwAT5b1NHtwZugAAAABJ" + "RU5ErkJggg=="; + + // bundled style sheet + const std::string internalCSS = + "\r\n"; + + // for external style sheet + std::string externalCSS; + +} // http +} // i2p + +#endif /* HTTP_SERVER_RESOURCES_H__ */ diff --git a/daemon/I2PControl.cpp b/daemon/I2PControl.cpp index 572292ee..6261a14c 100644 --- a/daemon/I2PControl.cpp +++ b/daemon/I2PControl.cpp @@ -1,31 +1,27 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include +#include #include #include -#include -#include -#include -#include -// There is bug in boost 1.49 with gcc 4.7 coming with Debian Wheezy -#define GCC47_BOOST149 ((BOOST_VERSION == 104900) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) -#if !GCC47_BOOST149 +// Use global placeholders from boost introduced when local_time.hpp is loaded +#define BOOST_BIND_GLOBAL_PLACEHOLDERS #include -#endif -#include "Crypto.h" #include "FS.h" #include "Log.h" #include "Config.h" #include "NetDb.hpp" -#include "RouterContext.h" -#include "Daemon.h" #include "Tunnel.h" -#include "Timestamp.h" -#include "Transports.h" -#include "version.h" -#include "util.h" -#include "ClientContext.h" +#include "Daemon.h" #include "I2PControl.h" namespace i2p @@ -33,11 +29,24 @@ namespace i2p namespace client { I2PControlService::I2PControlService (const std::string& address, int port): - m_IsRunning (false), m_Thread (nullptr), - m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)), + m_IsRunning (false), m_SSLContext (boost::asio::ssl::context::sslv23), m_ShutdownTimer (m_Service) { + if (port) + m_Acceptor = std::make_unique(m_Service, + boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(address), port)); + else +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + { + std::remove (address.c_str ()); // just in case + m_LocalAcceptor = std::make_unique(m_Service, + boost::asio::local::stream_protocol::endpoint(address)); + } +#else + LogPrint(eLogError, "I2PControl: Local sockets are not supported"); +#endif + i2p::config::GetOption("i2pcontrol.password", m_Password); // certificate / keys @@ -48,59 +57,46 @@ namespace client i2pcp_crt = i2p::fs::DataDirPath(i2pcp_crt); if (i2pcp_key.at(0) != '/') i2pcp_key = i2p::fs::DataDirPath(i2pcp_key); - if (!i2p::fs::Exists (i2pcp_crt) || !i2p::fs::Exists (i2pcp_key)) { - LogPrint (eLogInfo, "I2PControl: creating new certificate for control connection"); + if (!i2p::fs::Exists (i2pcp_crt) || !i2p::fs::Exists (i2pcp_key)) + { + LogPrint (eLogInfo, "I2PControl: Creating new certificate for control connection"); CreateCertificate (i2pcp_crt.c_str(), i2pcp_key.c_str()); - } else { - LogPrint(eLogDebug, "I2PControl: using cert from ", i2pcp_crt); - } + } + else + LogPrint(eLogDebug, "I2PControl: Using cert from ", i2pcp_crt); m_SSLContext.set_options (boost::asio::ssl::context::default_workarounds | boost::asio::ssl::context::no_sslv2 | boost::asio::ssl::context::single_dh_use); - m_SSLContext.use_certificate_file (i2pcp_crt, boost::asio::ssl::context::pem); - m_SSLContext.use_private_key_file (i2pcp_key, boost::asio::ssl::context::pem); + boost::system::error_code ec; + m_SSLContext.use_certificate_file (i2pcp_crt, boost::asio::ssl::context::pem, ec); + if (!ec) + m_SSLContext.use_private_key_file (i2pcp_key, boost::asio::ssl::context::pem, ec); + if (ec) + { + LogPrint (eLogInfo, "I2PControl: Failed to load ceritifcate: ", ec.message (), ". Recreating"); + CreateCertificate (i2pcp_crt.c_str(), i2pcp_key.c_str()); + m_SSLContext.use_certificate_file (i2pcp_crt, boost::asio::ssl::context::pem, ec); + if (!ec) + m_SSLContext.use_private_key_file (i2pcp_key, boost::asio::ssl::context::pem, ec); + if (ec) + // give up + LogPrint (eLogError, "I2PControl: Can't load certificates"); + } // handlers - m_MethodHandlers["Authenticate"] = &I2PControlService::AuthenticateHandler; - m_MethodHandlers["Echo"] = &I2PControlService::EchoHandler; - m_MethodHandlers["I2PControl"] = &I2PControlService::I2PControlHandler; - m_MethodHandlers["RouterInfo"] = &I2PControlService::RouterInfoHandler; - m_MethodHandlers["RouterManager"] = &I2PControlService::RouterManagerHandler; - m_MethodHandlers["NetworkSetting"] = &I2PControlService::NetworkSettingHandler; - m_MethodHandlers["ClientServicesInfo"] = &I2PControlService::ClientServicesInfoHandler; + m_MethodHandlers["Authenticate"] = &I2PControlService::AuthenticateHandler; + m_MethodHandlers["Echo"] = &I2PControlService::EchoHandler; + m_MethodHandlers["I2PControl"] = &I2PControlService::I2PControlHandler; + m_MethodHandlers["RouterInfo"] = &I2PControlHandlers::RouterInfoHandler; + m_MethodHandlers["RouterManager"] = &I2PControlService::RouterManagerHandler; + m_MethodHandlers["NetworkSetting"] = &I2PControlHandlers::NetworkSettingHandler; + m_MethodHandlers["ClientServicesInfo"] = &I2PControlHandlers::ClientServicesInfoHandler; // I2PControl m_I2PControlHandlers["i2pcontrol.password"] = &I2PControlService::PasswordHandler; - // RouterInfo - m_RouterInfoHandlers["i2p.router.uptime"] = &I2PControlService::UptimeHandler; - m_RouterInfoHandlers["i2p.router.version"] = &I2PControlService::VersionHandler; - m_RouterInfoHandlers["i2p.router.status"] = &I2PControlService::StatusHandler; - m_RouterInfoHandlers["i2p.router.netdb.knownpeers"] = &I2PControlService::NetDbKnownPeersHandler; - m_RouterInfoHandlers["i2p.router.netdb.activepeers"] = &I2PControlService::NetDbActivePeersHandler; - m_RouterInfoHandlers["i2p.router.net.bw.inbound.1s"] = &I2PControlService::InboundBandwidth1S; - m_RouterInfoHandlers["i2p.router.net.bw.outbound.1s"] = &I2PControlService::OutboundBandwidth1S; - m_RouterInfoHandlers["i2p.router.net.status"] = &I2PControlService::NetStatusHandler; - m_RouterInfoHandlers["i2p.router.net.tunnels.participating"] = &I2PControlService::TunnelsParticipatingHandler; - m_RouterInfoHandlers["i2p.router.net.tunnels.successrate"] = -&I2PControlService::TunnelsSuccessRateHandler; - m_RouterInfoHandlers["i2p.router.net.total.received.bytes"] = &I2PControlService::NetTotalReceivedBytes; - m_RouterInfoHandlers["i2p.router.net.total.sent.bytes"] = &I2PControlService::NetTotalSentBytes; - // RouterManager m_RouterManagerHandlers["Reseed"] = &I2PControlService::ReseedHandler; m_RouterManagerHandlers["Shutdown"] = &I2PControlService::ShutdownHandler; m_RouterManagerHandlers["ShutdownGraceful"] = &I2PControlService::ShutdownGracefulHandler; - - // NetworkSetting - m_NetworkSettingHandlers["i2p.router.net.bw.in"] = &I2PControlService::InboundBandwidthLimit; - m_NetworkSettingHandlers["i2p.router.net.bw.out"] = &I2PControlService::OutboundBandwidthLimit; - - // ClientServicesInfo - m_ClientServicesInfoHandlers["I2PTunnel"] = &I2PControlService::I2PTunnelInfoHandler; - m_ClientServicesInfoHandlers["HTTPProxy"] = &I2PControlService::HTTPProxyInfoHandler; - m_ClientServicesInfoHandlers["SOCKS"] = &I2PControlService::SOCKSInfoHandler; - m_ClientServicesInfoHandlers["SAM"] = &I2PControlService::SAMInfoHandler; - m_ClientServicesInfoHandlers["BOB"] = &I2PControlService::BOBInfoHandler; - m_ClientServicesInfoHandlers["I2CP"] = &I2PControlService::I2CPInfoHandler; } I2PControlService::~I2PControlService () @@ -114,7 +110,7 @@ namespace client { Accept (); m_IsRunning = true; - m_Thread = new std::thread (std::bind (&I2PControlService::Run, this)); + m_Thread = std::make_unique(std::bind (&I2PControlService::Run, this)); } } @@ -123,12 +119,19 @@ namespace client if (m_IsRunning) { m_IsRunning = false; - m_Acceptor.cancel (); + if (m_Acceptor) m_Acceptor->cancel (); +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + if (m_LocalAcceptor) + { + auto path = m_LocalAcceptor->local_endpoint().path(); + m_LocalAcceptor->cancel (); + std::remove (path.c_str ()); + } +#endif m_Service.stop (); if (m_Thread) { m_Thread->join (); - delete m_Thread; m_Thread = nullptr; } } @@ -136,52 +139,74 @@ namespace client void I2PControlService::Run () { + i2p::util::SetThreadName("I2PC"); + while (m_IsRunning) { try { m_Service.run (); } catch (std::exception& ex) { - LogPrint (eLogError, "I2PControl: runtime exception: ", ex.what ()); + LogPrint (eLogError, "I2PControl: Runtime exception: ", ex.what ()); } } } void I2PControlService::Accept () { - auto newSocket = std::make_shared (m_Service, m_SSLContext); - m_Acceptor.async_accept (newSocket->lowest_layer(), std::bind (&I2PControlService::HandleAccept, this, - std::placeholders::_1, newSocket)); + if (m_Acceptor) + { + auto newSocket = std::make_shared > (m_Service, m_SSLContext); + m_Acceptor->async_accept (newSocket->lowest_layer(), + [this, newSocket](const boost::system::error_code& ecode) + { + HandleAccepted (ecode, newSocket); + }); + } +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + else if (m_LocalAcceptor) + { + auto newSocket = std::make_shared > (m_Service, m_SSLContext); + m_LocalAcceptor->async_accept (newSocket->lowest_layer(), + [this, newSocket](const boost::system::error_code& ecode) + { + HandleAccepted (ecode, newSocket); + }); + } +#endif } - void I2PControlService::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket) + template + void I2PControlService::HandleAccepted (const boost::system::error_code& ecode, + std::shared_ptr newSocket) { if (ecode != boost::asio::error::operation_aborted) Accept (); - if (ecode) { - LogPrint (eLogError, "I2PControl: accept error: ", ecode.message ()); + if (ecode) + { + LogPrint (eLogError, "I2PControl: Accept error: ", ecode.message ()); return; } - LogPrint (eLogDebug, "I2PControl: new request from ", socket->lowest_layer ().remote_endpoint ()); - Handshake (socket); - } - + LogPrint (eLogDebug, "I2PControl: New request from ", newSocket->lowest_layer ().remote_endpoint ()); + Handshake (newSocket); + } + + template void I2PControlService::Handshake (std::shared_ptr socket) { socket->async_handshake(boost::asio::ssl::stream_base::server, - std::bind( &I2PControlService::HandleHandshake, this, std::placeholders::_1, socket)); - } - - void I2PControlService::HandleHandshake (const boost::system::error_code& ecode, std::shared_ptr socket) - { - if (ecode) { - LogPrint (eLogError, "I2PControl: handshake error: ", ecode.message ()); - return; - } - //std::this_thread::sleep_for (std::chrono::milliseconds(5)); - ReadRequest (socket); + [this, socket](const boost::system::error_code& ecode) + { + if (ecode) + { + LogPrint (eLogError, "I2PControl: Handshake error: ", ecode.message ()); + return; + } + ReadRequest (socket); + }); } + template void I2PControlService::ReadRequest (std::shared_ptr socket) { auto request = std::make_shared(); @@ -191,17 +216,20 @@ namespace client #else boost::asio::buffer (request->data (), request->size ()), #endif - std::bind(&I2PControlService::HandleRequestReceived, this, - std::placeholders::_1, std::placeholders::_2, socket, request)); + [this, socket, request](const boost::system::error_code& ecode, size_t bytes_transferred) + { + HandleRequestReceived (ecode, bytes_transferred, socket, request); + }); } + template void I2PControlService::HandleRequestReceived (const boost::system::error_code& ecode, size_t bytes_transferred, std::shared_ptr socket, std::shared_ptr buf) { if (ecode) { - LogPrint (eLogError, "I2PControl: read error: ", ecode.message ()); + LogPrint (eLogError, "I2PControl: Read error: ", ecode.message ()); return; } else @@ -224,7 +252,7 @@ namespace client } if (ss.eof ()) { - LogPrint (eLogError, "I2PControl: malformed request, HTTP header expected"); + LogPrint (eLogError, "I2PControl: Malformed request, HTTP header expected"); return; // TODO: } std::streamoff rem = contentLength + ss.tellg () - bytes_transferred; // more bytes to read @@ -235,12 +263,6 @@ namespace client } } std::ostringstream response; -#if GCC47_BOOST149 - LogPrint (eLogError, "I2PControl: json_read is not supported due bug in boost 1.49 with gcc 4.7"); - response << "{\"id\":null,\"error\":"; - response << "{\"code\":-32603,\"message\":\"JSON requests is not supported with this version of boost\"},"; - response << "\"jsonrpc\":\"2.0\"}"; -#else boost::property_tree::ptree pt; boost::property_tree::read_json (ss, pt); @@ -255,17 +277,16 @@ namespace client } else { - LogPrint (eLogWarning, "I2PControl: unknown method ", method); + LogPrint (eLogWarning, "I2PControl: Unknown method ", method); response << "{\"id\":null,\"error\":"; response << "{\"code\":-32601,\"message\":\"Method not found\"},"; response << "\"jsonrpc\":\"2.0\"}"; } -#endif SendResponse (socket, buf, response, isHtml); } catch (std::exception& ex) { - LogPrint (eLogError, "I2PControl: exception when handle request: ", ex.what ()); + LogPrint (eLogError, "I2PControl: Exception when handle request: ", ex.what ()); std::ostringstream response; response << "{\"id\":null,\"error\":"; response << "{\"code\":-32700,\"message\":\"" << ex.what () << "\"},"; @@ -274,37 +295,12 @@ namespace client } catch (...) { - LogPrint (eLogError, "I2PControl: handle request unknown exception"); + LogPrint (eLogError, "I2PControl: Handle request unknown exception"); } } } - void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, int value) const - { - ss << "\"" << name << "\":" << value; - } - - void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, const std::string& value) const - { - ss << "\"" << name << "\":"; - if (value.length () > 0) - ss << "\"" << value << "\""; - else - ss << "null"; - } - - void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, double value) const - { - ss << "\"" << name << "\":" << std::fixed << std::setprecision(2) << value; - } - - void I2PControlService::InsertParam (std::ostringstream& ss, const std::string& name, const boost::property_tree::ptree& value) const - { - std::ostringstream buf; - boost::property_tree::write_json (buf, value, false); - ss << "\"" << name << "\":" << buf.str(); - } - + template void I2PControlService::SendResponse (std::shared_ptr socket, std::shared_ptr buf, std::ostringstream& response, bool isHtml) { @@ -314,12 +310,12 @@ namespace client std::ostringstream header; header << "HTTP/1.1 200 OK\r\n"; header << "Connection: close\r\n"; - header << "Content-Length: " << boost::lexical_cast(len) << "\r\n"; + header << "Content-Length: " << std::to_string(len) << "\r\n"; header << "Content-Type: application/json\r\n"; header << "Date: "; - auto facet = new boost::local_time::local_time_facet ("%a, %d %b %Y %H:%M:%S GMT"); - header.imbue(std::locale (header.getloc(), facet)); - header << boost::posix_time::second_clock::local_time() << "\r\n"; + std::time_t t = std::time (nullptr); + std::tm tm = *std::gmtime (&t); + header << std::put_time(&tm, "%a, %d %b %Y %T GMT") << "\r\n"; header << "\r\n"; offset = header.str ().size (); memcpy (buf->data (), header.str ().c_str (), offset); @@ -327,16 +323,11 @@ namespace client memcpy (buf->data () + offset, response.str ().c_str (), len); boost::asio::async_write (*socket, boost::asio::buffer (buf->data (), offset + len), boost::asio::transfer_all (), - std::bind(&I2PControlService::HandleResponseSent, this, - std::placeholders::_1, std::placeholders::_2, socket, buf)); - } - - void I2PControlService::HandleResponseSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, - std::shared_ptr socket, std::shared_ptr buf) - { - if (ecode) { - LogPrint (eLogError, "I2PControl: write error: ", ecode.message ()); - } + [socket, buf](const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + if (ecode) + LogPrint (eLogError, "I2PControl: Write error: ", ecode.message ()); + }); } // handlers @@ -385,94 +376,11 @@ namespace client void I2PControlService::PasswordHandler (const std::string& value) { - LogPrint (eLogWarning, "I2PControl: new password=", value, ", to make it persistent you should update your config!"); + LogPrint (eLogWarning, "I2PControl: New password=", value, ", to make it persistent you should update your config!"); m_Password = value; m_Tokens.clear (); } -// RouterInfo - - void I2PControlService::RouterInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results) - { - for (auto it = params.begin (); it != params.end (); it++) - { - LogPrint (eLogDebug, "I2PControl: RouterInfo request: ", it->first); - auto it1 = m_RouterInfoHandlers.find (it->first); - if (it1 != m_RouterInfoHandlers.end ()) - { - if (it != params.begin ()) results << ","; - (this->*(it1->second))(results); - } - else - LogPrint (eLogError, "I2PControl: RouterInfo unknown request ", it->first); - } - } - - void I2PControlService::UptimeHandler (std::ostringstream& results) - { - InsertParam (results, "i2p.router.uptime", (int)i2p::context.GetUptime ()*1000); - } - - void I2PControlService::VersionHandler (std::ostringstream& results) - { - InsertParam (results, "i2p.router.version", VERSION); - } - - void I2PControlService::StatusHandler (std::ostringstream& results) - { - auto dest = i2p::client::context.GetSharedLocalDestination (); - InsertParam (results, "i2p.router.status", (dest && dest->IsReady ()) ? "1" : "0"); - } - - void I2PControlService::NetDbKnownPeersHandler (std::ostringstream& results) - { - InsertParam (results, "i2p.router.netdb.knownpeers", i2p::data::netdb.GetNumRouters ()); - } - - void I2PControlService::NetDbActivePeersHandler (std::ostringstream& results) - { - InsertParam (results, "i2p.router.netdb.activepeers", (int)i2p::transport::transports.GetPeers ().size ()); - } - - void I2PControlService::NetStatusHandler (std::ostringstream& results) - { - InsertParam (results, "i2p.router.net.status", (int)i2p::context.GetStatus ()); - } - - void I2PControlService::TunnelsParticipatingHandler (std::ostringstream& results) - { - int transit = i2p::tunnel::tunnels.GetTransitTunnels ().size (); - InsertParam (results, "i2p.router.net.tunnels.participating", transit); - } - - void I2PControlService::TunnelsSuccessRateHandler (std::ostringstream& results) - { - int rate = i2p::tunnel::tunnels.GetTunnelCreationSuccessRate (); - InsertParam (results, "i2p.router.net.tunnels.successrate", rate); - } - - void I2PControlService::InboundBandwidth1S (std::ostringstream& results) - { - double bw = i2p::transport::transports.GetInBandwidth (); - InsertParam (results, "i2p.router.net.bw.inbound.1s", bw); - } - - void I2PControlService::OutboundBandwidth1S (std::ostringstream& results) - { - double bw = i2p::transport::transports.GetOutBandwidth (); - InsertParam (results, "i2p.router.net.bw.outbound.1s", bw); - } - - void I2PControlService::NetTotalReceivedBytes (std::ostringstream& results) - { - InsertParam (results, "i2p.router.net.total.received.bytes", (double)i2p::transport::transports.GetTotalReceivedBytes ()); - } - - void I2PControlService::NetTotalSentBytes (std::ostringstream& results) - { - InsertParam (results, "i2p.router.net.total.sent.bytes", (double)i2p::transport::transports.GetTotalSentBytes ()); - } - // RouterManager @@ -480,10 +388,11 @@ namespace client { for (auto it = params.begin (); it != params.end (); it++) { - if (it != params.begin ()) results << ","; LogPrint (eLogDebug, "I2PControl: RouterManager request: ", it->first); auto it1 = m_RouterManagerHandlers.find (it->first); - if (it1 != m_RouterManagerHandlers.end ()) { + if (it1 != m_RouterManagerHandlers.end ()) + { + if (it != params.begin ()) results << ","; (this->*(it1->second))(results); } else LogPrint (eLogError, "I2PControl: RouterManager unknown request: ", it->first); @@ -498,7 +407,7 @@ namespace client m_ShutdownTimer.expires_from_now (boost::posix_time::seconds(1)); // 1 second to make sure response has been sent m_ShutdownTimer.async_wait ( [](const boost::system::error_code& ecode) - { + { Daemon.running = 0; }); } @@ -512,7 +421,7 @@ namespace client m_ShutdownTimer.expires_from_now (boost::posix_time::seconds(timeout + 1)); // + 1 second m_ShutdownTimer.async_wait ( [](const boost::system::error_code& ecode) - { + { Daemon.running = 0; }); } @@ -524,37 +433,6 @@ namespace client i2p::data::netdb.Reseed (); } -// network setting - void I2PControlService::NetworkSettingHandler (const boost::property_tree::ptree& params, std::ostringstream& results) - { - for (auto it = params.begin (); it != params.end (); it++) - { - LogPrint (eLogDebug, "I2PControl: NetworkSetting request: ", it->first); - auto it1 = m_NetworkSettingHandlers.find (it->first); - if (it1 != m_NetworkSettingHandlers.end ()) { - if (it != params.begin ()) results << ","; - (this->*(it1->second))(it->second.data (), results); - } else - LogPrint (eLogError, "I2PControl: NetworkSetting unknown request: ", it->first); - } - } - - void I2PControlService::InboundBandwidthLimit (const std::string& value, std::ostringstream& results) - { - if (value != "null") - i2p::context.SetBandwidth (std::atoi(value.c_str())); - int bw = i2p::context.GetBandwidthLimit(); - InsertParam (results, "i2p.router.net.bw.in", bw); - } - - void I2PControlService::OutboundBandwidthLimit (const std::string& value, std::ostringstream& results) - { - if (value != "null") - i2p::context.SetBandwidth (std::atoi(value.c_str())); - int bw = i2p::context.GetBandwidthLimit(); - InsertParam (results, "i2p.router.net.bw.out", bw); - } - // certificate void I2PControlService::CreateCertificate (const char *crt_path, const char *key_path) { @@ -577,15 +455,15 @@ namespace client X509_NAME_add_entry_by_txt (name, "O", MBSTRING_ASC, (unsigned char *)I2P_CONTROL_CERTIFICATE_ORGANIZATION, -1, -1, 0); // organization X509_NAME_add_entry_by_txt (name, "CN", MBSTRING_ASC, (unsigned char *)I2P_CONTROL_CERTIFICATE_COMMON_NAME, -1, -1, 0); // common name X509_set_issuer_name (x509, name); // set issuer to ourselves - X509_sign (x509, pkey, EVP_sha1 ()); // sign + X509_sign (x509, pkey, EVP_sha1 ()); // sign, last param must be NULL for EdDSA // save cert if ((f = fopen (crt_path, "wb")) != NULL) { - LogPrint (eLogInfo, "I2PControl: saving new cert to ", crt_path); + LogPrint (eLogInfo, "I2PControl: Saving new cert to ", crt_path); PEM_write_X509 (f, x509); fclose (f); } else { - LogPrint (eLogError, "I2PControl: can't write cert: ", strerror(errno)); + LogPrint (eLogError, "I2PControl: Can't write cert: ", strerror(errno)); } // save key @@ -594,187 +472,14 @@ namespace client PEM_write_PrivateKey (f, pkey, NULL, NULL, 0, NULL, NULL); fclose (f); } else { - LogPrint (eLogError, "I2PControl: can't write key: ", strerror(errno)); + LogPrint (eLogError, "I2PControl: Can't write key: ", strerror(errno)); } X509_free (x509); } else { - LogPrint (eLogError, "I2PControl: can't create RSA key for certificate"); + LogPrint (eLogError, "I2PControl: Can't create RSA key for certificate"); } EVP_PKEY_free (pkey); } - -// ClientServicesInfo - - void I2PControlService::ClientServicesInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results) - { - for (auto it = params.begin (); it != params.end (); it++) - { - LogPrint (eLogDebug, "I2PControl: ClientServicesInfo request: ", it->first); - auto it1 = m_ClientServicesInfoHandlers.find (it->first); - if (it1 != m_ClientServicesInfoHandlers.end ()) - { - if (it != params.begin ()) results << ","; - (this->*(it1->second))(results); - } - else - LogPrint (eLogError, "I2PControl: ClientServicesInfo unknown request ", it->first); - } - } - - void I2PControlService::I2PTunnelInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - boost::property_tree::ptree client_tunnels, server_tunnels; - - for (auto& it: i2p::client::context.GetClientTunnels ()) - { - auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - boost::property_tree::ptree ct; - ct.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - client_tunnels.add_child(it.second->GetName (), ct); - } - - auto& serverTunnels = i2p::client::context.GetServerTunnels (); - if (!serverTunnels.empty ()) { - for (auto& it: serverTunnels) - { - auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - boost::property_tree::ptree st; - st.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - st.put("port", it.second->GetLocalPort ()); - server_tunnels.add_child(it.second->GetName (), st); - } - } - - auto& clientForwards = i2p::client::context.GetClientForwards (); - if (!clientForwards.empty ()) - { - for (auto& it: clientForwards) - { - auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - boost::property_tree::ptree ct; - ct.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - client_tunnels.add_child(it.second->GetName (), ct); - } - } - - auto& serverForwards = i2p::client::context.GetServerForwards (); - if (!serverForwards.empty ()) - { - for (auto& it: serverForwards) - { - auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); - boost::property_tree::ptree st; - st.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - server_tunnels.add_child(it.second->GetName (), st); - } - } - - pt.add_child("client", client_tunnels); - pt.add_child("server", server_tunnels); - - InsertParam (results, "I2PTunnel", pt); - } - - void I2PControlService::HTTPProxyInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - - auto httpProxy = i2p::client::context.GetHttpProxy (); - if (httpProxy) - { - auto& ident = httpProxy->GetLocalDestination ()->GetIdentHash(); - pt.put("enabled", true); - pt.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - } - else - pt.put("enabled", false); - - InsertParam (results, "HTTPProxy", pt); - } - - void I2PControlService::SOCKSInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - - auto socksProxy = i2p::client::context.GetSocksProxy (); - if (socksProxy) - { - auto& ident = socksProxy->GetLocalDestination ()->GetIdentHash(); - pt.put("enabled", true); - pt.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - } - else - pt.put("enabled", false); - - InsertParam (results, "SOCKS", pt); - } - - void I2PControlService::SAMInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - auto sam = i2p::client::context.GetSAMBridge (); - if (sam) - { - pt.put("enabled", true); - boost::property_tree::ptree sam_sessions; - for (auto& it: sam->GetSessions ()) - { - boost::property_tree::ptree sam_session, sam_session_sockets; - auto& name = it.second->localDestination->GetNickname (); - auto& ident = it.second->localDestination->GetIdentHash(); - sam_session.put("name", name); - sam_session.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); - - for (const auto& socket: sam->ListSockets(it.first)) - { - boost::property_tree::ptree stream; - stream.put("type", socket->GetSocketType ()); - stream.put("peer", socket->GetSocket ().remote_endpoint()); - - sam_session_sockets.push_back(std::make_pair("", stream)); - } - sam_session.add_child("sockets", sam_session_sockets); - sam_sessions.add_child(it.first, sam_session); - } - - pt.add_child("sessions", sam_sessions); - } - else - pt.put("enabled", false); - - InsertParam (results, "SAM", pt); - } - - void I2PControlService::BOBInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - auto bob = i2p::client::context.GetBOBCommandChannel (); - if (bob) - { - /* TODO more info */ - pt.put("enabled", true); - } - else - pt.put("enabled", false); - - InsertParam (results, "BOB", pt); - } - - void I2PControlService::I2CPInfoHandler (std::ostringstream& results) - { - boost::property_tree::ptree pt; - auto i2cp = i2p::client::context.GetI2CPServer (); - if (i2cp) - { - /* TODO more info */ - pt.put("enabled", true); - } - else - pt.put("enabled", false); - - InsertParam (results, "I2CP", pt); - } } } diff --git a/daemon/I2PControl.h b/daemon/I2PControl.h index 3233ad12..83dd6549 100644 --- a/daemon/I2PControl.h +++ b/daemon/I2PControl.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef I2P_CONTROL_H__ #define I2P_CONTROL_H__ @@ -12,6 +20,7 @@ #include #include #include +#include "I2PControlHandlers.h" namespace i2p { @@ -24,9 +33,8 @@ namespace client const char I2P_CONTROL_CERTIFICATE_COMMON_NAME[] = "i2pd.i2pcontrol"; const char I2P_CONTROL_CERTIFICATE_ORGANIZATION[] = "Purple I2P"; - class I2PControlService + class I2PControlService: public I2PControlHandlers { - typedef boost::asio::ssl::stream ssl_socket; public: I2PControlService (const std::string& address, int port); @@ -39,94 +47,59 @@ namespace client void Run (); void Accept (); - void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket); + template + void HandleAccepted (const boost::system::error_code& ecode, std::shared_ptr newSocket); + template void Handshake (std::shared_ptr socket); - void HandleHandshake (const boost::system::error_code& ecode, std::shared_ptr socket); + template void ReadRequest (std::shared_ptr socket); + template void HandleRequestReceived (const boost::system::error_code& ecode, size_t bytes_transferred, std::shared_ptr socket, std::shared_ptr buf); + template void SendResponse (std::shared_ptr socket, std::shared_ptr buf, std::ostringstream& response, bool isHtml); - void HandleResponseSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, - std::shared_ptr socket, std::shared_ptr buf); void CreateCertificate (const char *crt_path, const char *key_path); private: - void InsertParam (std::ostringstream& ss, const std::string& name, int value) const; - void InsertParam (std::ostringstream& ss, const std::string& name, double value) const; - void InsertParam (std::ostringstream& ss, const std::string& name, const std::string& value) const; - void InsertParam (std::ostringstream& ss, const std::string& name, const boost::property_tree::ptree& value) const; - // methods typedef void (I2PControlService::*MethodHandler)(const boost::property_tree::ptree& params, std::ostringstream& results); void AuthenticateHandler (const boost::property_tree::ptree& params, std::ostringstream& results); void EchoHandler (const boost::property_tree::ptree& params, std::ostringstream& results); void I2PControlHandler (const boost::property_tree::ptree& params, std::ostringstream& results); - void RouterInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results); void RouterManagerHandler (const boost::property_tree::ptree& params, std::ostringstream& results); - void NetworkSettingHandler (const boost::property_tree::ptree& params, std::ostringstream& results); - void ClientServicesInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results); // I2PControl typedef void (I2PControlService::*I2PControlRequestHandler)(const std::string& value); void PasswordHandler (const std::string& value); - // RouterInfo - typedef void (I2PControlService::*RouterInfoRequestHandler)(std::ostringstream& results); - void UptimeHandler (std::ostringstream& results); - void VersionHandler (std::ostringstream& results); - void StatusHandler (std::ostringstream& results); - void NetDbKnownPeersHandler (std::ostringstream& results); - void NetDbActivePeersHandler (std::ostringstream& results); - void NetStatusHandler (std::ostringstream& results); - void TunnelsParticipatingHandler (std::ostringstream& results); - void TunnelsSuccessRateHandler (std::ostringstream& results); - void InboundBandwidth1S (std::ostringstream& results); - void OutboundBandwidth1S (std::ostringstream& results); - void NetTotalReceivedBytes (std::ostringstream& results); - void NetTotalSentBytes (std::ostringstream& results); - // RouterManager typedef void (I2PControlService::*RouterManagerRequestHandler)(std::ostringstream& results); void ShutdownHandler (std::ostringstream& results); void ShutdownGracefulHandler (std::ostringstream& results); void ReseedHandler (std::ostringstream& results); - // NetworkSetting - typedef void (I2PControlService::*NetworkSettingRequestHandler)(const std::string& value, std::ostringstream& results); - void InboundBandwidthLimit (const std::string& value, std::ostringstream& results); - void OutboundBandwidthLimit (const std::string& value, std::ostringstream& results); - - // ClientServicesInfo - typedef void (I2PControlService::*ClientServicesInfoRequestHandler)(std::ostringstream& results); - void I2PTunnelInfoHandler (std::ostringstream& results); - void HTTPProxyInfoHandler (std::ostringstream& results); - void SOCKSInfoHandler (std::ostringstream& results); - void SAMInfoHandler (std::ostringstream& results); - void BOBInfoHandler (std::ostringstream& results); - void I2CPInfoHandler (std::ostringstream& results); - private: std::string m_Password; bool m_IsRunning; - std::thread * m_Thread; + std::unique_ptr m_Thread; - boost::asio::io_service m_Service; - boost::asio::ip::tcp::acceptor m_Acceptor; + boost::asio::io_context m_Service; + std::unique_ptr m_Acceptor; +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + std::unique_ptr m_LocalAcceptor; +#endif boost::asio::ssl::context m_SSLContext; boost::asio::deadline_timer m_ShutdownTimer; std::set m_Tokens; std::map m_MethodHandlers; std::map m_I2PControlHandlers; - std::map m_RouterInfoHandlers; std::map m_RouterManagerHandlers; - std::map m_NetworkSettingHandlers; - std::map m_ClientServicesInfoHandlers; }; } } diff --git a/daemon/I2PControlHandlers.cpp b/daemon/I2PControlHandlers.cpp new file mode 100644 index 00000000..f3ea7f61 --- /dev/null +++ b/daemon/I2PControlHandlers.cpp @@ -0,0 +1,390 @@ +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#define BOOST_BIND_GLOBAL_PLACEHOLDERS +#include +#include + +#include "Log.h" +#include "RouterContext.h" +#include "NetDb.hpp" +#include "Tunnel.h" +#include "Transports.h" +#include "version.h" +#include "ClientContext.h" +#include "I2PControlHandlers.h" + +namespace i2p +{ +namespace client +{ + I2PControlHandlers::I2PControlHandlers () + { + // RouterInfo + m_RouterInfoHandlers["i2p.router.uptime"] = &I2PControlHandlers::UptimeHandler; + m_RouterInfoHandlers["i2p.router.version"] = &I2PControlHandlers::VersionHandler; + m_RouterInfoHandlers["i2p.router.status"] = &I2PControlHandlers::StatusHandler; + m_RouterInfoHandlers["i2p.router.netdb.knownpeers"] = &I2PControlHandlers::NetDbKnownPeersHandler; + m_RouterInfoHandlers["i2p.router.netdb.activepeers"] = &I2PControlHandlers::NetDbActivePeersHandler; + m_RouterInfoHandlers["i2p.router.net.bw.inbound.1s"] = &I2PControlHandlers::InboundBandwidth1S; + m_RouterInfoHandlers["i2p.router.net.bw.inbound.15s"] = &I2PControlHandlers::InboundBandwidth15S; + m_RouterInfoHandlers["i2p.router.net.bw.outbound.1s"] = &I2PControlHandlers::OutboundBandwidth1S; + m_RouterInfoHandlers["i2p.router.net.bw.outbound.15s"] = &I2PControlHandlers::OutboundBandwidth15S; + m_RouterInfoHandlers["i2p.router.net.status"] = &I2PControlHandlers::NetStatusHandler; + m_RouterInfoHandlers["i2p.router.net.tunnels.participating"] = &I2PControlHandlers::TunnelsParticipatingHandler; + m_RouterInfoHandlers["i2p.router.net.tunnels.successrate"] = &I2PControlHandlers::TunnelsSuccessRateHandler; + m_RouterInfoHandlers["i2p.router.net.total.received.bytes"] = &I2PControlHandlers::NetTotalReceivedBytes; + m_RouterInfoHandlers["i2p.router.net.total.sent.bytes"] = &I2PControlHandlers::NetTotalSentBytes; + + // NetworkSetting + m_NetworkSettingHandlers["i2p.router.net.bw.in"] = &I2PControlHandlers::InboundBandwidthLimit; + m_NetworkSettingHandlers["i2p.router.net.bw.out"] = &I2PControlHandlers::OutboundBandwidthLimit; + + // ClientServicesInfo + m_ClientServicesInfoHandlers["I2PTunnel"] = &I2PControlHandlers::I2PTunnelInfoHandler; + m_ClientServicesInfoHandlers["HTTPProxy"] = &I2PControlHandlers::HTTPProxyInfoHandler; + m_ClientServicesInfoHandlers["SOCKS"] = &I2PControlHandlers::SOCKSInfoHandler; + m_ClientServicesInfoHandlers["SAM"] = &I2PControlHandlers::SAMInfoHandler; + m_ClientServicesInfoHandlers["BOB"] = &I2PControlHandlers::BOBInfoHandler; + m_ClientServicesInfoHandlers["I2CP"] = &I2PControlHandlers::I2CPInfoHandler; + } + + void I2PControlHandlers::InsertParam (std::ostringstream& ss, const std::string& name, int value) const + { + ss << "\"" << name << "\":" << value; + } + + void I2PControlHandlers::InsertParam (std::ostringstream& ss, const std::string& name, const std::string& value, bool quotes) const + { + ss << "\"" << name << "\":"; + if (value.length () > 0) + { + if (quotes) + ss << "\"" << value << "\""; + else + ss << value; + } + else + ss << "null"; + } + + void I2PControlHandlers::InsertParam (std::ostringstream& ss, const std::string& name, double value) const + { + ss << "\"" << name << "\":" << std::fixed << std::setprecision(2) << value; + } + + void I2PControlHandlers::InsertParam (std::ostringstream& ss, const std::string& name, const boost::property_tree::ptree& value) const + { + std::ostringstream buf; + boost::property_tree::write_json (buf, value, false); + ss << "\"" << name << "\":" << buf.str(); + } + +// RouterInfo + + void I2PControlHandlers::RouterInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results) + { + bool first = true; + for (auto it = params.begin (); it != params.end (); it++) + { + LogPrint (eLogDebug, "I2PControl: RouterInfo request: ", it->first); + auto it1 = m_RouterInfoHandlers.find (it->first); + if (it1 != m_RouterInfoHandlers.end ()) + { + if (!first) results << ","; + else first = false; + (this->*(it1->second))(results); + } + else + LogPrint (eLogError, "I2PControl: RouterInfo unknown request ", it->first); + } + } + + void I2PControlHandlers::UptimeHandler (std::ostringstream& results) + { + InsertParam (results, "i2p.router.uptime", std::to_string (i2p::context.GetUptime ()*1000LL), false); + } + + void I2PControlHandlers::VersionHandler (std::ostringstream& results) + { + InsertParam (results, "i2p.router.version", VERSION); + } + + void I2PControlHandlers::StatusHandler (std::ostringstream& results) + { + auto dest = i2p::client::context.GetSharedLocalDestination (); + InsertParam (results, "i2p.router.status", (dest && dest->IsReady ()) ? "1" : "0"); + } + + void I2PControlHandlers::NetDbKnownPeersHandler (std::ostringstream& results) + { + InsertParam (results, "i2p.router.netdb.knownpeers", i2p::data::netdb.GetNumRouters ()); + } + + void I2PControlHandlers::NetDbActivePeersHandler (std::ostringstream& results) + { + InsertParam (results, "i2p.router.netdb.activepeers", (int)i2p::transport::transports.GetPeers ().size ()); + } + + void I2PControlHandlers::NetStatusHandler (std::ostringstream& results) + { + InsertParam (results, "i2p.router.net.status", (int)i2p::context.GetStatus ()); + } + + void I2PControlHandlers::TunnelsParticipatingHandler (std::ostringstream& results) + { + int transit = i2p::tunnel::tunnels.GetTransitTunnels ().size (); + InsertParam (results, "i2p.router.net.tunnels.participating", transit); + } + + void I2PControlHandlers::TunnelsSuccessRateHandler (std::ostringstream& results) + { + int rate = i2p::tunnel::tunnels.GetTunnelCreationSuccessRate (); + InsertParam (results, "i2p.router.net.tunnels.successrate", rate); + } + + void I2PControlHandlers::InboundBandwidth1S (std::ostringstream& results) + { + double bw = i2p::transport::transports.GetInBandwidth (); + InsertParam (results, "i2p.router.net.bw.inbound.1s", bw); + } + + void I2PControlHandlers::InboundBandwidth15S (std::ostringstream& results) + { + double bw = i2p::transport::transports.GetInBandwidth15s (); + InsertParam (results, "i2p.router.net.bw.inbound.15s", bw); + } + + void I2PControlHandlers::OutboundBandwidth1S (std::ostringstream& results) + { + double bw = i2p::transport::transports.GetOutBandwidth (); + InsertParam (results, "i2p.router.net.bw.outbound.1s", bw); + } + + void I2PControlHandlers::OutboundBandwidth15S (std::ostringstream& results) + { + double bw = i2p::transport::transports.GetOutBandwidth15s (); + InsertParam (results, "i2p.router.net.bw.outbound.15s", bw); + } + + void I2PControlHandlers::NetTotalReceivedBytes (std::ostringstream& results) + { + InsertParam (results, "i2p.router.net.total.received.bytes", (double)i2p::transport::transports.GetTotalReceivedBytes ()); + } + + void I2PControlHandlers::NetTotalSentBytes (std::ostringstream& results) + { + InsertParam (results, "i2p.router.net.total.sent.bytes", (double)i2p::transport::transports.GetTotalSentBytes ()); + } + +// network setting + void I2PControlHandlers::NetworkSettingHandler (const boost::property_tree::ptree& params, std::ostringstream& results) + { + for (auto it = params.begin (); it != params.end (); it++) + { + LogPrint (eLogDebug, "I2PControl: NetworkSetting request: ", it->first); + auto it1 = m_NetworkSettingHandlers.find (it->first); + if (it1 != m_NetworkSettingHandlers.end ()) { + if (it != params.begin ()) results << ","; + (this->*(it1->second))(it->second.data (), results); + } else + LogPrint (eLogError, "I2PControl: NetworkSetting unknown request: ", it->first); + } + } + + void I2PControlHandlers::InboundBandwidthLimit (const std::string& value, std::ostringstream& results) + { + if (value != "null") + i2p::context.SetBandwidth (std::atoi(value.c_str())); + int bw = i2p::context.GetBandwidthLimit(); + InsertParam (results, "i2p.router.net.bw.in", bw); + } + + void I2PControlHandlers::OutboundBandwidthLimit (const std::string& value, std::ostringstream& results) + { + if (value != "null") + i2p::context.SetBandwidth (std::atoi(value.c_str())); + int bw = i2p::context.GetBandwidthLimit(); + InsertParam (results, "i2p.router.net.bw.out", bw); + } + +// ClientServicesInfo + + void I2PControlHandlers::ClientServicesInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results) + { + for (auto it = params.begin (); it != params.end (); it++) + { + LogPrint (eLogDebug, "I2PControl: ClientServicesInfo request: ", it->first); + auto it1 = m_ClientServicesInfoHandlers.find (it->first); + if (it1 != m_ClientServicesInfoHandlers.end ()) + { + if (it != params.begin ()) results << ","; + (this->*(it1->second))(results); + } + else + LogPrint (eLogError, "I2PControl: ClientServicesInfo unknown request ", it->first); + } + } + + void I2PControlHandlers::I2PTunnelInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + boost::property_tree::ptree client_tunnels, server_tunnels; + + for (auto& it: i2p::client::context.GetClientTunnels ()) + { + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + boost::property_tree::ptree ct; + ct.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + client_tunnels.add_child(it.second->GetName (), ct); + } + + auto& serverTunnels = i2p::client::context.GetServerTunnels (); + if (!serverTunnels.empty ()) { + for (auto& it: serverTunnels) + { + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + boost::property_tree::ptree st; + st.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + st.put("port", it.second->GetLocalPort ()); + server_tunnels.add_child(it.second->GetName (), st); + } + } + + auto& clientForwards = i2p::client::context.GetClientForwards (); + if (!clientForwards.empty ()) + { + for (auto& it: clientForwards) + { + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + boost::property_tree::ptree ct; + ct.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + client_tunnels.add_child(it.second->GetName (), ct); + } + } + + auto& serverForwards = i2p::client::context.GetServerForwards (); + if (!serverForwards.empty ()) + { + for (auto& it: serverForwards) + { + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + boost::property_tree::ptree st; + st.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + server_tunnels.add_child(it.second->GetName (), st); + } + } + + pt.add_child("client", client_tunnels); + pt.add_child("server", server_tunnels); + + InsertParam (results, "I2PTunnel", pt); + } + + void I2PControlHandlers::HTTPProxyInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + + auto httpProxy = i2p::client::context.GetHttpProxy (); + if (httpProxy) + { + auto& ident = httpProxy->GetLocalDestination ()->GetIdentHash(); + pt.put("enabled", true); + pt.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + } + else + pt.put("enabled", false); + + InsertParam (results, "HTTPProxy", pt); + } + + void I2PControlHandlers::SOCKSInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + + auto socksProxy = i2p::client::context.GetSocksProxy (); + if (socksProxy) + { + auto& ident = socksProxy->GetLocalDestination ()->GetIdentHash(); + pt.put("enabled", true); + pt.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + } + else + pt.put("enabled", false); + + InsertParam (results, "SOCKS", pt); + } + + void I2PControlHandlers::SAMInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + auto sam = i2p::client::context.GetSAMBridge (); + if (sam) + { + pt.put("enabled", true); + boost::property_tree::ptree sam_sessions; + for (auto& it: sam->GetSessions ()) + { + boost::property_tree::ptree sam_session, sam_session_sockets; + auto& name = it.second->GetLocalDestination ()->GetNickname (); + auto& ident = it.second->GetLocalDestination ()->GetIdentHash(); + sam_session.put("name", name); + sam_session.put("address", i2p::client::context.GetAddressBook ().ToAddress(ident)); + + for (const auto& socket: sam->ListSockets(it.first)) + { + boost::property_tree::ptree stream; + stream.put("type", socket->GetSocketType ()); + stream.put("peer", socket->GetSocket ().remote_endpoint()); + + sam_session_sockets.push_back(std::make_pair("", stream)); + } + sam_session.add_child("sockets", sam_session_sockets); + sam_sessions.add_child(it.first, sam_session); + } + + pt.add_child("sessions", sam_sessions); + } + else + pt.put("enabled", false); + + InsertParam (results, "SAM", pt); + } + + void I2PControlHandlers::BOBInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + auto bob = i2p::client::context.GetBOBCommandChannel (); + if (bob) + { + /* TODO more info */ + pt.put("enabled", true); + } + else + pt.put("enabled", false); + + InsertParam (results, "BOB", pt); + } + + void I2PControlHandlers::I2CPInfoHandler (std::ostringstream& results) + { + boost::property_tree::ptree pt; + auto i2cp = i2p::client::context.GetI2CPServer (); + if (i2cp) + { + /* TODO more info */ + pt.put("enabled", true); + } + else + pt.put("enabled", false); + + InsertParam (results, "I2CP", pt); + } +} +} diff --git a/daemon/I2PControlHandlers.h b/daemon/I2PControlHandlers.h new file mode 100644 index 00000000..d106f288 --- /dev/null +++ b/daemon/I2PControlHandlers.h @@ -0,0 +1,82 @@ +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef I2P_CONTROL_HANDLERS_H__ +#define I2P_CONTROL_HANDLERS_H__ + +#include +#include +#include +#include + +namespace i2p +{ +namespace client +{ + class I2PControlHandlers + { + public: + + I2PControlHandlers (); + + // methods + // TODO: make protected + void RouterInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results); + void NetworkSettingHandler (const boost::property_tree::ptree& params, std::ostringstream& results); + void ClientServicesInfoHandler (const boost::property_tree::ptree& params, std::ostringstream& results); + + protected: + + void InsertParam (std::ostringstream& ss, const std::string& name, int value) const; + void InsertParam (std::ostringstream& ss, const std::string& name, double value) const; + void InsertParam (std::ostringstream& ss, const std::string& name, const std::string& value, bool quotes = true) const; + void InsertParam (std::ostringstream& ss, const std::string& name, const boost::property_tree::ptree& value) const; + + private: + + // RouterInfo + typedef void (I2PControlHandlers::*RouterInfoRequestHandler)(std::ostringstream& results); + void UptimeHandler (std::ostringstream& results); + void VersionHandler (std::ostringstream& results); + void StatusHandler (std::ostringstream& results); + void NetDbKnownPeersHandler (std::ostringstream& results); + void NetDbActivePeersHandler (std::ostringstream& results); + void NetStatusHandler (std::ostringstream& results); + void TunnelsParticipatingHandler (std::ostringstream& results); + void TunnelsSuccessRateHandler (std::ostringstream& results); + void InboundBandwidth1S (std::ostringstream& results); + void InboundBandwidth15S (std::ostringstream& results); + void OutboundBandwidth1S (std::ostringstream& results); + void OutboundBandwidth15S (std::ostringstream& results); + void NetTotalReceivedBytes (std::ostringstream& results); + void NetTotalSentBytes (std::ostringstream& results); + + // NetworkSetting + typedef void (I2PControlHandlers::*NetworkSettingRequestHandler)(const std::string& value, std::ostringstream& results); + void InboundBandwidthLimit (const std::string& value, std::ostringstream& results); + void OutboundBandwidthLimit (const std::string& value, std::ostringstream& results); + + // ClientServicesInfo + typedef void (I2PControlHandlers::*ClientServicesInfoRequestHandler)(std::ostringstream& results); + void I2PTunnelInfoHandler (std::ostringstream& results); + void HTTPProxyInfoHandler (std::ostringstream& results); + void SOCKSInfoHandler (std::ostringstream& results); + void SAMInfoHandler (std::ostringstream& results); + void BOBInfoHandler (std::ostringstream& results); + void I2CPInfoHandler (std::ostringstream& results); + + private: + + std::map m_RouterInfoHandlers; + std::map m_NetworkSettingHandlers; + std::map m_ClientServicesInfoHandlers; + }; +} +} + +#endif diff --git a/daemon/UPnP.cpp b/daemon/UPnP.cpp index 3aad19c6..8e6dbcf6 100644 --- a/daemon/UPnP.cpp +++ b/daemon/UPnP.cpp @@ -1,11 +1,15 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifdef USE_UPNP #include #include -#include -#include -#include - #include "Log.h" #include "RouterContext.h" @@ -30,7 +34,7 @@ namespace transport { if (m_IsRunning) { - LogPrint(eLogInfo, "UPnP: stopping"); + LogPrint(eLogInfo, "UPnP: Stopping"); m_IsRunning = false; m_Timer.cancel (); m_Service.stop (); @@ -47,8 +51,8 @@ namespace transport void UPnP::Start() { m_IsRunning = true; - LogPrint(eLogInfo, "UPnP: starting"); - m_Service.post (std::bind (&UPnP::Discover, this)); + LogPrint(eLogInfo, "UPnP: Starting"); + boost::asio::post (m_Service, std::bind (&UPnP::Discover, this)); std::unique_lock l(m_StartedMutex); m_Thread.reset (new std::thread (std::bind (&UPnP::Run, this))); m_Started.wait_for (l, std::chrono::seconds (5)); // 5 seconds maximum @@ -61,6 +65,8 @@ namespace transport void UPnP::Run () { + i2p::util::SetThreadName("UPnP"); + while (m_IsRunning) { try @@ -71,7 +77,7 @@ namespace transport } catch (std::exception& ex) { - LogPrint (eLogError, "UPnP: runtime exception: ", ex.what ()); + LogPrint (eLogError, "UPnP: Runtime exception: ", ex.what ()); PortMapping (); } } @@ -79,127 +85,189 @@ namespace transport void UPnP::Discover () { -#if MINIUPNPC_API_VERSION >= 14 - int nerror = 0; - m_Devlist = upnpDiscover (2000, m_MulticastIf, m_Minissdpdpath, 0, 0, 2, &nerror); -#elif ( MINIUPNPC_API_VERSION >= 8 || defined(UPNPDISCOVER_SUCCESS) ) - int nerror = 0; - m_Devlist = upnpDiscover (2000, m_MulticastIf, m_Minissdpdpath, 0, 0, &nerror); + bool isError; + int err; + +#if ((MINIUPNPC_API_VERSION >= 8) || defined (UPNPDISCOVER_SUCCESS)) + err = UPNPDISCOVER_SUCCESS; + +#if (MINIUPNPC_API_VERSION >= 14) + m_Devlist = upnpDiscover (UPNP_RESPONSE_TIMEOUT, NULL, NULL, 0, 0, 2, &err); #else - m_Devlist = upnpDiscover (2000, m_MulticastIf, m_Minissdpdpath, 0); + m_Devlist = upnpDiscover (UPNP_RESPONSE_TIMEOUT, NULL, NULL, 0, 0, &err); #endif + + isError = err != UPNPDISCOVER_SUCCESS; +#else // MINIUPNPC_API_VERSION >= 8 + err = 0; + m_Devlist = upnpDiscover (UPNP_RESPONSE_TIMEOUT, NULL, NULL, 0); + isError = m_Devlist == NULL; +#endif // MINIUPNPC_API_VERSION >= 8 { - // notify satrting thread + // notify starting thread std::unique_lock l(m_StartedMutex); m_Started.notify_all (); } - int r; - r = UPNP_GetValidIGD (m_Devlist, &m_upnpUrls, &m_upnpData, m_NetworkAddr, sizeof (m_NetworkAddr)); - if (r == 1) + if (isError) { - r = UPNP_GetExternalIPAddress (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_externalIPAddress); - if(r != UPNPCOMMAND_SUCCESS) + LogPrint (eLogError, "UPnP: Unable to discover Internet Gateway Devices: error ", err); + return; + } + +#if (MINIUPNPC_API_VERSION >= 18) + err = UPNP_GetValidIGD (m_Devlist, &m_upnpUrls, &m_upnpData, m_NetworkAddr, sizeof (m_NetworkAddr), + m_externalIPAddress, sizeof (m_externalIPAddress)); +#else + err = UPNP_GetValidIGD (m_Devlist, &m_upnpUrls, &m_upnpData, m_NetworkAddr, sizeof (m_NetworkAddr)); +#endif + m_upnpUrlsInitialized=err!=0; + if (err == UPNP_IGD_VALID_CONNECTED) + { +#if (MINIUPNPC_API_VERSION < 18) + err = UPNP_GetExternalIPAddress (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_externalIPAddress); + if(err != UPNPCOMMAND_SUCCESS) { - LogPrint (eLogError, "UPnP: UPNP_GetExternalIPAddress() returned ", r); + LogPrint (eLogError, "UPnP: Unable to get external address: error ", err); return; } else +#endif { + LogPrint (eLogError, "UPnP: Found Internet Gateway Device ", m_upnpUrls.controlURL); if (!m_externalIPAddress[0]) { - LogPrint (eLogError, "UPnP: GetExternalIPAddress() failed."); + LogPrint (eLogError, "UPnP: Found Internet Gateway Device doesn't know our external address"); return; } } } else { - LogPrint (eLogError, "UPnP: GetValidIGD() failed."); + LogPrint (eLogError, "UPnP: Unable to find valid Internet Gateway Device: error ", err); return; } // UPnP discovered LogPrint (eLogDebug, "UPnP: ExternalIPAddress is ", m_externalIPAddress); - i2p::context.UpdateAddress (boost::asio::ip::address::from_string (m_externalIPAddress)); + i2p::context.UpdateAddress (boost::asio::ip::make_address (m_externalIPAddress)); // port mapping PortMapping (); } + int UPnP::CheckMapping (const char* port, const char* type) + { + int err = UPNPCOMMAND_SUCCESS; + +#if (MINIUPNPC_API_VERSION >= 10) + err = UPNP_GetSpecificPortMappingEntry(m_upnpUrls.controlURL, m_upnpData.first.servicetype, port, type, NULL, NULL, NULL, NULL, NULL, NULL); +#elif ((MINIUPNPC_API_VERSION >= 8) || defined (UPNPDISCOVER_SUCCESS)) + err = UPNP_GetSpecificPortMappingEntry(m_upnpUrls.controlURL, m_upnpData.first.servicetype, port, type, NULL, NULL, NULL, NULL, NULL); +#else + err = UPNP_GetSpecificPortMappingEntry(m_upnpUrls.controlURL, m_upnpData.first.servicetype, port, type, NULL, NULL); +#endif + return err; + } + void UPnP::PortMapping () { - const auto& a = context.GetRouterInfo().GetAddresses(); - for (const auto& address : a) + auto a = context.GetRouterInfo().GetAddresses(); + if (!a) return; + for (const auto& address : *a) { - if (!address->host.is_v6 () && address->port) + if (address && !address->host.is_v6 () && address->port) TryPortMapping (address); } - m_Timer.expires_from_now (boost::posix_time::minutes(20)); // every 20 minutes + m_Timer.expires_from_now (boost::posix_time::minutes(UPNP_PORT_FORWARDING_INTERVAL)); // every 20 minutes m_Timer.async_wait ([this](const boost::system::error_code& ecode) { if (ecode != boost::asio::error::operation_aborted) - PortMapping (); + PortMapping (); }); - - } - - void UPnP::CloseMapping () - { - const auto& a = context.GetRouterInfo().GetAddresses(); - for (const auto& address : a) - { - if (!address->host.is_v6 () && address->port) - CloseMapping (address); - } } void UPnP::TryPortMapping (std::shared_ptr address) { std::string strType (GetProto (address)), strPort (std::to_string (address->port)); - int r; std::string strDesc; i2p::config::GetOption("upnp.name", strDesc); -#ifdef UPNPDISCOVER_SUCCESS - r = UPNP_AddPortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strPort.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), 0, "0"); -#else - r = UPNP_AddPortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strPort.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), 0); -#endif - if (r!=UPNPCOMMAND_SUCCESS) + int err = UPNPCOMMAND_SUCCESS; + + // check for existing mapping + err = CheckMapping (strPort.c_str (), strType.c_str ()); + if (err != UPNPCOMMAND_SUCCESS) // if mapping not found { - LogPrint (eLogError, "UPnP: AddPortMapping (", m_NetworkAddr, ":", strPort, ") failed with code ", r); - return; + LogPrint (eLogDebug, "UPnP: Port ", strPort, " is possibly not forwarded: return code ", err); + +#if ((MINIUPNPC_API_VERSION >= 8) || defined (UPNPDISCOVER_SUCCESS)) + err = UPNP_AddPortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strPort.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), NULL, NULL); +#else + err = UPNP_AddPortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strPort.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), NULL); +#endif + if (err != UPNPCOMMAND_SUCCESS) + { + LogPrint (eLogError, "UPnP: Port forwarding to ", m_NetworkAddr, ":", strPort, " failed: return code ", err); + return; + } + else + { + LogPrint (eLogInfo, "UPnP: Port successfully forwarded (", m_externalIPAddress ,":", strPort, " type ", strType, " -> ", m_NetworkAddr ,":", strPort ,")"); + return; + } } else { - LogPrint (eLogDebug, "UPnP: Port Mapping successful. (", m_NetworkAddr ,":", strPort, " type ", strType, " -> ", m_externalIPAddress ,":", strPort ,")"); + LogPrint (eLogDebug, "UPnP: External forward from ", m_NetworkAddr, ":", strPort, " exists on current Internet Gateway Device"); return; } } + void UPnP::CloseMapping () + { + auto a = context.GetRouterInfo().GetAddresses(); + if (!a) return; + for (const auto& address : *a) + { + if (address && !address->host.is_v6 () && address->port) + CloseMapping (address); + } + } + void UPnP::CloseMapping (std::shared_ptr address) { + if(!m_upnpUrlsInitialized) { + return; + } std::string strType (GetProto (address)), strPort (std::to_string (address->port)); - int r = 0; - r = UPNP_DeletePortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strType.c_str (), 0); - LogPrint (eLogError, "UPnP: DeletePortMapping() returned : ", r); + int err = UPNPCOMMAND_SUCCESS; + + err = CheckMapping (strPort.c_str (), strType.c_str ()); + if (err == UPNPCOMMAND_SUCCESS) + { + err = UPNP_DeletePortMapping (m_upnpUrls.controlURL, m_upnpData.first.servicetype, strPort.c_str (), strType.c_str (), NULL); + LogPrint (eLogError, "UPnP: DeletePortMapping() returned : ", err); + } } void UPnP::Close () { freeUPNPDevlist (m_Devlist); m_Devlist = 0; - FreeUPNPUrls (&m_upnpUrls); + if(m_upnpUrlsInitialized){ + FreeUPNPUrls (&m_upnpUrls); + m_upnpUrlsInitialized=false; + } } std::string UPnP::GetProto (std::shared_ptr address) { switch (address->transportStyle) { - case i2p::data::RouterInfo::eTransportNTCP: - return "TCP"; - break; - case i2p::data::RouterInfo::eTransportSSU: + case i2p::data::RouterInfo::eTransportNTCP2: + return "TCP"; + break; + case i2p::data::RouterInfo::eTransportSSU2: default: - return "UDP"; + return "UDP"; } } } diff --git a/daemon/UPnP.h b/daemon/UPnP.h index 5313a1c4..2a5fe9f3 100644 --- a/daemon/UPnP.h +++ b/daemon/UPnP.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef __UPNP_H__ #define __UPNP_H__ @@ -19,60 +27,72 @@ namespace i2p { namespace transport { + const int UPNP_RESPONSE_TIMEOUT = 2000; // in milliseconds + const int UPNP_PORT_FORWARDING_INTERVAL = 20; // in minutes + + enum + { + UPNP_IGD_NONE = 0, + UPNP_IGD_VALID_CONNECTED = 1, + UPNP_IGD_VALID_NOT_CONNECTED = 2, + UPNP_IGD_INVALID = 3 + }; + class UPnP { - public: + public: - UPnP (); - ~UPnP (); - void Close (); + UPnP (); + ~UPnP (); + void Close (); - void Start (); - void Stop (); + void Start (); + void Stop (); - private: + private: - void Discover (); - void PortMapping (); - void TryPortMapping (std::shared_ptr address); - void CloseMapping (); - void CloseMapping (std::shared_ptr address); + void Discover (); + int CheckMapping (const char* port, const char* type); + void PortMapping (); + void TryPortMapping (std::shared_ptr address); + void CloseMapping (); + void CloseMapping (std::shared_ptr address); - void Run (); - std::string GetProto (std::shared_ptr address); + void Run (); + std::string GetProto (std::shared_ptr address); - private: + private: - bool m_IsRunning; - std::unique_ptr m_Thread; - std::condition_variable m_Started; - std::mutex m_StartedMutex; - boost::asio::io_service m_Service; - boost::asio::deadline_timer m_Timer; - struct UPNPUrls m_upnpUrls; - struct IGDdatas m_upnpData; + bool m_IsRunning; + std::unique_ptr m_Thread; + std::condition_variable m_Started; + std::mutex m_StartedMutex; + boost::asio::io_context m_Service; + boost::asio::deadline_timer m_Timer; + bool m_upnpUrlsInitialized = false; + struct UPNPUrls m_upnpUrls; + struct IGDdatas m_upnpData; - // For miniupnpc - char * m_MulticastIf = 0; - char * m_Minissdpdpath = 0; - struct UPNPDev * m_Devlist = 0; - char m_NetworkAddr[64]; - char m_externalIPAddress[40]; + // For miniupnpc + struct UPNPDev * m_Devlist = 0; + char m_NetworkAddr[64]; + char m_externalIPAddress[40]; }; } } -#else // USE_UPNP +#else // USE_UPNP namespace i2p { namespace transport { - /* class stub */ - class UPnP { - public: - UPnP () {}; - ~UPnP () {}; - void Start () { LogPrint(eLogWarning, "UPnP: this module was disabled at compile-time"); } - void Stop () {}; - }; + /* class stub */ + class UPnP { + public: + + UPnP () {}; + ~UPnP () {}; + void Start () { LogPrint(eLogWarning, "UPnP: this module was disabled at compile-time"); } + void Stop () {}; + }; } } #endif // USE_UPNP diff --git a/daemon/UnixDaemon.cpp b/daemon/UnixDaemon.cpp index 3dd38fba..66661e0f 100644 --- a/daemon/UnixDaemon.cpp +++ b/daemon/UnixDaemon.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "Daemon.h" #ifndef _WIN32 @@ -16,6 +24,8 @@ #include "Tunnel.h" #include "RouterContext.h" #include "ClientContext.h" +#include "Transports.h" +#include "util.h" void handle_signal(int sig) { @@ -46,6 +56,14 @@ void handle_signal(int sig) case SIGPIPE: LogPrint(eLogInfo, "SIGPIPE received"); break; + case SIGTSTP: + LogPrint(eLogInfo, "Daemon: Got SIGTSTP, disconnecting from network..."); + i2p::transport::transports.SetOnline(false); + break; + case SIGCONT: + LogPrint(eLogInfo, "Daemon: Got SIGCONT, restoring connection to network..."); + i2p::transport::transports.SetOnline(true); + break; } } @@ -64,7 +82,8 @@ namespace i2p if (pid < 0) // error { - LogPrint(eLogError, "Daemon: could not fork: ", strerror(errno)); + LogPrint(eLogError, "Daemon: Could not fork: ", strerror(errno)); + std::cerr << "i2pd: Could not fork: " << strerror(errno) << std::endl; return false; } @@ -73,13 +92,15 @@ namespace i2p int sid = setsid(); if (sid < 0) { - LogPrint(eLogError, "Daemon: could not create process group."); + LogPrint(eLogError, "Daemon: Could not create process group."); + std::cerr << "i2pd: Could not create process group." << std::endl; return false; } std::string d = i2p::fs::GetDataDir(); if (chdir(d.c_str()) != 0) { - LogPrint(eLogError, "Daemon: could not chdir: ", strerror(errno)); + LogPrint(eLogError, "Daemon: Could not chdir: ", strerror(errno)); + std::cerr << "i2pd: Could not chdir: " << strerror(errno) << std::endl; return false; } @@ -94,14 +115,14 @@ namespace i2p uint16_t nfiles; i2p::config::GetOption("limits.openfiles", nfiles); getrlimit(RLIMIT_NOFILE, &limit); if (nfiles == 0) { - LogPrint(eLogInfo, "Daemon: using system limit in ", limit.rlim_cur, " max open files"); + LogPrint(eLogInfo, "Daemon: Using system limit in ", limit.rlim_cur, " max open files"); } else if (nfiles <= limit.rlim_max) { limit.rlim_cur = nfiles; if (setrlimit(RLIMIT_NOFILE, &limit) == 0) { - LogPrint(eLogInfo, "Daemon: set max number of open files to ", + LogPrint(eLogInfo, "Daemon: Set max number of open files to ", nfiles, " (system limit is ", limit.rlim_max, ")"); } else { - LogPrint(eLogError, "Daemon: can't set max number of open files: ", strerror(errno)); + LogPrint(eLogError, "Daemon: Can't set max number of open files: ", strerror(errno)); } } else { LogPrint(eLogError, "Daemon: limits.openfiles exceeds system limit: ", limit.rlim_max); @@ -114,11 +135,11 @@ namespace i2p if (cfsize <= limit.rlim_max) { limit.rlim_cur = cfsize; if (setrlimit(RLIMIT_CORE, &limit) != 0) { - LogPrint(eLogError, "Daemon: can't set max size of coredump: ", strerror(errno)); + LogPrint(eLogError, "Daemon: Can't set max size of coredump: ", strerror(errno)); } else if (cfsize == 0) { LogPrint(eLogInfo, "Daemon: coredumps disabled"); } else { - LogPrint(eLogInfo, "Daemon: set max size of core files to ", cfsize / 1024, "Kb"); + LogPrint(eLogInfo, "Daemon: Set max size of core files to ", cfsize / 1024, "Kb"); } } else { LogPrint(eLogError, "Daemon: limits.coresize exceeds system limit: ", limit.rlim_max); @@ -135,28 +156,43 @@ namespace i2p pidFH = open(pidfile.c_str(), O_RDWR | O_CREAT, 0600); if (pidFH < 0) { - LogPrint(eLogError, "Daemon: could not create pid file ", pidfile, ": ", strerror(errno)); + LogPrint(eLogError, "Daemon: Could not create pid file ", pidfile, ": ", strerror(errno)); + std::cerr << "i2pd: Could not create pid file " << pidfile << ": " << strerror(errno) << std::endl; return false; } #ifndef ANDROID if (lockf(pidFH, F_TLOCK, 0) != 0) +#else + struct flock fl; + fl.l_len = 0; + fl.l_type = F_WRLCK; + fl.l_whence = SEEK_SET; + fl.l_start = 0; + + if (fcntl(pidFH, F_SETLK, &fl) != 0) +#endif { - LogPrint(eLogError, "Daemon: could not lock pid file ", pidfile, ": ", strerror(errno)); + LogPrint(eLogError, "Daemon: Could not lock pid file ", pidfile, ": ", strerror(errno)); + std::cerr << "i2pd: Could not lock pid file " << pidfile << ": " << strerror(errno) << std::endl; return false; } -#endif + char pid[10]; sprintf(pid, "%d\n", getpid()); ftruncate(pidFH, 0); if (write(pidFH, pid, strlen(pid)) < 0) { - LogPrint(eLogError, "Daemon: could not write pidfile: ", strerror(errno)); + LogPrint(eLogCritical, "Daemon: Could not write pidfile ", pidfile, ": ", strerror(errno)); + std::cerr << "i2pd: Could not write pidfile " << pidfile << ": " << strerror(errno) << std::endl; return false; } } gracefulShutdownInterval = 0; // not specified + // handle signal TSTP + bool handleTSTP; i2p::config::GetOption("unix.handle_sigtstp", handleTSTP); + // Signal handler struct sigaction sa; sa.sa_handler = handle_signal; @@ -167,7 +203,12 @@ namespace i2p sigaction(SIGABRT, &sa, 0); sigaction(SIGTERM, &sa, 0); sigaction(SIGINT, &sa, 0); - sigaction(SIGPIPE, &sa, 0); + sigaction(SIGPIPE, &sa, 0); + if (handleTSTP) + { + sigaction(SIGTSTP, &sa, 0); + sigaction(SIGCONT, &sa, 0); + } return Daemon_Singleton::start(); } @@ -175,12 +216,12 @@ namespace i2p bool DaemonLinux::stop() { i2p::fs::Remove(pidfile); - return Daemon_Singleton::stop(); } void DaemonLinux::run () { + i2p::util::SetThreadName ("i2pd-daemon"); while (running) { std::this_thread::sleep_for (std::chrono::seconds(1)); @@ -197,5 +238,4 @@ namespace i2p } } } - #endif diff --git a/daemon/i2pd.cpp b/daemon/i2pd.cpp index 8718ad0c..028aa916 100644 --- a/daemon/i2pd.cpp +++ b/daemon/i2pd.cpp @@ -1,24 +1,31 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "Daemon.h" #if defined(QT_GUI_LIB) - namespace i2p { namespace qt { - int RunQT (int argc, char* argv[]); + int RunQT (int argc, char* argv[]); } } -int main( int argc, char* argv[] ) -{ - return i2p::qt::RunQT (argc, argv); -} +int main( int argc, char* argv[] ) +{ + return i2p::qt::RunQT (argc, argv); +} #else int main( int argc, char* argv[] ) { - if (Daemon.init(argc, argv)) + if (Daemon.init(argc, argv)) { if (Daemon.start()) Daemon.run (); diff --git a/debian/NEWS b/debian/NEWS new file mode 100644 index 00000000..c0add110 --- /dev/null +++ b/debian/NEWS @@ -0,0 +1,5 @@ +i2pd (2.53.0-1) unstable; urgency=medium + + i2pd binary moved from /usr/sbin to /usr/bin. Please check your scripts if you used the old path. + + -- r4sas Fri, 19 Jul 2024 16:00:00 +0000 diff --git a/debian/changelog b/debian/changelog index a0ad2cd5..d170f534 100644 --- a/debian/changelog +++ b/debian/changelog @@ -1,3 +1,247 @@ +i2pd (2.56.0-1) unstable; urgency=medium + + * updated to version 2.56.0/0.9.65 + + -- orignal Tue, 11 Feb 2025 16:00:00 +0000 + +i2pd (2.55.0-1) unstable; urgency=medium + + * updated to version 2.55.0 + + -- orignal Mon, 30 Dec 2024 16:00:00 +0000 + +i2pd (2.54.0-1) unstable; urgency=medium + + * updated to version 2.54.0/0.9.64 + + -- orignal Sun, 6 Oct 2024 16:00:00 +0000 + +i2pd (2.53.1-1) unstable; urgency=medium + + * updated to version 2.53.1 + + -- orignal Tue, 30 Jul 2024 16:00:00 +0000 + +i2pd (2.53.0-1) unstable; urgency=medium + + * updated to version 2.53.0/0.9.63 + * binary moved from /usr/sbin to /usr/bin + + -- r4sas Sat, 20 Jul 2024 15:10:00 +0000 + +i2pd (2.52.0-1) unstable; urgency=medium + + * updated to version 2.52.0 + + -- orignal Sun, 12 May 2024 16:00:00 +0000 + +i2pd (2.51.0-1) unstable; urgency=medium + + * updated to version 2.51.0/0.9.62 + + -- orignal Sat, 06 Apr 2024 16:00:00 +0000 + +i2pd (2.50.2-1) unstable; urgency=medium + + * updated to version 2.50.2/0.9.61 + + -- orignal Sat, 06 Jan 2024 16:00:00 +0000 + +i2pd (2.50.1-1) unstable; urgency=medium + + * updated to version 2.50.1/0.9.61 + + -- r4sas Sat, 23 Dec 2023 18:30:00 +0000 + +i2pd (2.50.0-1) unstable; urgency=medium + + * updated to version 2.50.0/0.9.61 + + -- orignal Mon, 18 Dec 2023 16:00:00 +0000 + +i2pd (2.49.0-1) unstable; urgency=medium + + * updated to version 2.49.0/0.9.60 + + -- orignal Mon, 18 Sep 2023 16:00:00 +0000 + +i2pd (2.48.0-1) unstable; urgency=high + + * updated to version 2.48.0/0.9.59 + + -- orignal Mon, 12 Jun 2023 16:00:00 +0000 + +i2pd (2.47.0-1) unstable; urgency=high + + * updated to version 2.47.0/0.9.58 + + -- orignal Sat, 11 Mar 2023 16:00:00 +0000 + +i2pd (2.46.1-2) unstable; urgency=critical + + * re-pushed release due to new critical bug + + -- r4sas Mon, 20 Feb 2023 23:40:00 +0000 + +i2pd (2.46.1-1) unstable; urgency=high + + * updated to version 2.46.1/0.9.57 + + -- r4sas Mon, 20 Feb 2023 02:45:00 +0000 + +i2pd (2.46.0-1) unstable; urgency=high + + * updated to version 2.46.0/0.9.57 + + -- orignal Wed, 15 Feb 2023 19:00:00 +0000 + +i2pd (2.45.1-1) unstable; urgency=medium + + * updated to version 2.45.1/0.9.57 + + -- orignal Wed, 11 Jan 2023 19:00:00 +0000 + +i2pd (2.45.0-1) unstable; urgency=high + + * updated to version 2.45.0/0.9.57 + * compat level 12 + * standards version 4.3.0 + * increased nofile limit in service and init.d to 8192 + * added conffiles + * removed #1210 patch + + -- r4sas Tue, 3 Jan 2023 18:00:00 +0000 + +i2pd (2.44.0-1) unstable; urgency=medium + + * updated to version 2.44.0/0.9.56 + + -- orignal Sun, 20 Nov 2022 19:00:00 +0000 + +i2pd (2.43.0-1) unstable; urgency=medium + + * updated to version 2.43.0/0.9.55 + + -- orignal Mon, 22 Aug 2022 16:00:00 +0000 + +i2pd (2.42.1-1) unstable; urgency=medium + + * updated to version 2.42.1/0.9.54 + * remove -O3 optimization flag + + -- r4sas Tue, 24 May 2022 12:00:00 +0000 + +i2pd (2.42.0-1) unstable; urgency=medium + + * updated to version 2.42.0/0.9.54 + + -- orignal Sun, 22 May 2022 16:00:00 +0000 + +i2pd (2.41.0-1) unstable; urgency=medium + + * updated to version 2.41.0/0.9.53 + + -- r4sas Sun, 20 Feb 2022 13:00:00 +0000 + +i2pd (2.40.0-1) unstable; urgency=medium + + * updated to version 2.40.0/0.9.52 + + -- orignal Mon, 29 Nov 2021 16:00:00 +0000 + +i2pd (2.39.0-1) unstable; urgency=medium + + * updated to version 2.39.0/0.9.51 + + -- orignal Mon, 23 Aug 2021 16:00:00 +0000 + +i2pd (2.38.0-1) unstable; urgency=medium + + * updated to version 2.38.0/0.9.50 + + -- orignal Mon, 17 May 2021 16:00:00 +0000 + +i2pd (2.37.0-1) unstable; urgency=medium + + * updated to version 2.37.0 + + -- orignal Mon, 15 Mar 2021 16:00:00 +0000 + +i2pd (2.36.0-1) unstable; urgency=high + + * updated to version 2.36.0/0.9.49 + + -- orignal Mon, 15 Feb 2021 16:00:00 +0000 + +i2pd (2.35.0-1) unstable; urgency=high + + * updated to version 2.35.0/0.9.48 + + -- orignal Mon, 30 Nov 2020 16:00:00 +0000 + +i2pd (2.34.0-1) unstable; urgency=medium + + * updated to version 2.34.0 + + -- orignal Tue, 27 Oct 2020 16:00:00 +0000 + +i2pd (2.33.0-1) unstable; urgency=medium + + * updated to version 2.33.0/0.9.47 + + -- orignal Mon, 24 Aug 2020 16:00:00 +0000 + +i2pd (2.32.1-1) unstable; urgency=high + + * updated to version 2.32.1 + + -- r4sas Tue, 02 Jun 2020 16:30:00 +0000 + +i2pd (2.32.0-1) unstable; urgency=high + + * updated to version 2.32.0/0.9.46 + * updated systemd service file (see #1394) + * updated apparmor profile (see 9318388007cff0495b4b360d0480f4fc1219a9dc) + * updated logrotate config and moved it to contrib + + -- r4sas Mon, 25 May 2020 12:45:00 +0000 + +i2pd (2.31.0-1) unstable; urgency=medium + + * updated to version 2.31.0 + + -- orignal Fri, 10 Apr 2020 16:00:00 +0000 + +i2pd (2.30.0-1) unstable; urgency=medium + + * updated to version 2.30.0/0.9.45 + + -- orignal Tue, 25 Feb 2020 16:00:00 +0000 + +i2pd (2.29.0-1) unstable; urgency=medium + + * updated to version 2.29.0/0.9.43 + + -- orignal Mon, 21 Oct 2019 16:00:00 +0000 + +i2pd (2.28.0-1) unstable; urgency=medium + + * updated to version 2.28.0/0.9.42 + + -- orignal Tue, 27 Aug 2019 16:00:00 +0000 + +i2pd (2.27.0-1) unstable; urgency=medium + + * updated to version 2.27.0/0.9.41 + + -- orignal Wed, 3 Jul 2019 16:00:00 +0000 + +i2pd (2.26.0-1) unstable; urgency=medium + + * updated to version 2.26.0 + + -- orignal Fri, 7 Jun 2019 16:00:00 +0000 + i2pd (2.25.0-1) unstable; urgency=medium * updated to version 2.25.0/0.9.40 @@ -30,7 +274,7 @@ i2pd (2.21.1-1) unstable; urgency=medium * updated to version 2.21.1 - -- orignal Thu, 22 Oct 2018 16:00:00 +0000 + -- orignal Mon, 22 Oct 2018 16:00:00 +0000 i2pd (2.21.0-1) unstable; urgency=medium diff --git a/debian/compat b/debian/compat index f11c82a4..48082f72 100644 --- a/debian/compat +++ b/debian/compat @@ -1 +1 @@ -9 \ No newline at end of file +12 diff --git a/debian/control b/debian/control index 843a153c..48f5e680 100644 --- a/debian/control +++ b/debian/control @@ -2,31 +2,17 @@ Source: i2pd Section: net Priority: optional Maintainer: r4sas -Build-Depends: debhelper (>= 9), dpkg-dev (>= 1.17.2~), gcc (>= 4.7) | clang (>= 3.3), libboost-system-dev (>= 1.46), libboost-date-time-dev (>= 1.46), libboost-filesystem-dev (>= 1.46), libboost-program-options-dev (>= 1.46), libminiupnpc-dev, libssl-dev, zlib1g-dev -Standards-Version: 3.9.6 +Build-Depends: debhelper (>= 12~), libboost-system-dev (>= 1.46), libboost-date-time-dev (>= 1.46), libboost-filesystem-dev (>= 1.46), libboost-program-options-dev (>= 1.46), libminiupnpc-dev, libssl-dev, zlib1g-dev +Standards-Version: 4.3.0 Homepage: http://i2pd.website/ Vcs-Git: git://github.com/PurpleI2P/i2pd.git Vcs-Browser: https://github.com/PurpleI2P/i2pd Package: i2pd Architecture: any -Pre-Depends: adduser +Pre-Depends: ${misc:Pre-Depends}, adduser Depends: ${shlibs:Depends}, ${misc:Depends}, lsb-base, Description: Full-featured C++ implementation of I2P client. I2P (Invisible Internet Protocol) is a universal anonymous network layer. All communications over I2P are anonymous and end-to-end encrypted, participants don't reveal their real IP addresses. - . - This package contains the full-featured C++ implementation of I2P router. - -Package: i2pd-dbg -Architecture: any -Priority: extra -Section: debug -Depends: i2pd (= ${binary:Version}), ${misc:Depends} -Description: i2pd debugging symbols - I2P (Invisible Internet Protocol) is a universal anonymous network layer. All - communications over I2P are anonymous and end-to-end encrypted, participants - don't reveal their real IP addresses. - . - This package contains symbols required for debugging. diff --git a/debian/copyright b/debian/copyright index 3c513020..352e260b 100644 --- a/debian/copyright +++ b/debian/copyright @@ -3,25 +3,18 @@ Upstream-Name: i2pd Source: https://github.com/PurpleI2P Files: * -Copyright: 2013-2017 PurpleI2P +Copyright: 2013-2023 PurpleI2P License: BSD-3-clause -Files: qt/i2pd_qt/android/src/org/kde/necessitas/ministro/IMinistro.aidl - qt/i2pd_qt/android/src/org/kde/necessitas/ministro/IMinistroCallback.aidl - qt/i2pd_qt/android/src/org/qtproject/qt5/android/bindings/QtActivity.java - qt/i2pd_qt/android/src/org/qtproject/qt5/android/bindings/QtApplication.java -Copyright: 2011-2013 BogDan Vatra -License: BSD-2-Clause - Files: debian/* Copyright: 2013-2015 Kill Your TV 2014-2016 hagen - 2016-2017 R4SAS - 2017-2018 Yangfl + 2016-2023 R4SAS + 2017-2020 Yangfl License: GPL-2+ License: BSD-3-clause - Copyright (c) 2013-2017, The PurpleI2P Project + Copyright (c) 2013-2023, The PurpleI2P Project . All rights reserved. . @@ -49,28 +42,6 @@ License: BSD-3-clause TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -License: BSD-2-Clause - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - . - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE HOLDERS OR - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - License: GPL-2+ This package is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by diff --git a/debian/docs b/debian/docs index dfa6f572..b43bf86b 100644 --- a/debian/docs +++ b/debian/docs @@ -1,5 +1 @@ README.md -contrib/i2pd.conf -contrib/subscriptions.txt -contrib/tunnels.conf -contrib/tunnels.d diff --git a/debian/i2pd.1 b/debian/i2pd.1 index 5145321f..42c282d9 100644 --- a/debian/i2pd.1 +++ b/debian/i2pd.1 @@ -64,7 +64,7 @@ The network interface to bind to for IPv4 connections The network interface to bind to for IPv6 connections .TP \fB\-\-ipv4=\fR -Enable communication through ipv6 (\fIenabled\fR by default) +Enable communication through ipv4 (\fIenabled\fR by default) .TP \fB\-\-ipv6\fR Enable communication through ipv6 (\fIdisabled\fR by default) diff --git a/debian/i2pd.default b/debian/i2pd.default index bd1d073f..90392ede 100644 --- a/debian/i2pd.default +++ b/debian/i2pd.default @@ -8,4 +8,4 @@ I2PD_ENABLED="yes" DAEMON_OPTS="" # If you have problems with hunging i2pd, you can try enable this -ulimit -n 4096 +ulimit -n 8192 diff --git a/debian/i2pd.dirs b/debian/i2pd.dirs deleted file mode 100644 index 3b643352..00000000 --- a/debian/i2pd.dirs +++ /dev/null @@ -1,2 +0,0 @@ -etc/i2pd -var/lib/i2pd diff --git a/debian/i2pd.init b/debian/i2pd.init index 33fd80a5..9b5f7669 100644 --- a/debian/i2pd.init +++ b/debian/i2pd.init @@ -13,7 +13,7 @@ PATH=/sbin:/usr/sbin:/bin:/usr/bin DESC=i2pd # Introduce a short description here NAME=i2pd # Introduce the short server's name here -DAEMON=/usr/sbin/$NAME # Introduce the server's location here +DAEMON=/usr/bin/$NAME # Introduce the server's location here DAEMON_OPTS="" # Arguments to run the daemon with PIDFILE=/var/run/$NAME/$NAME.pid I2PCONF=/etc/$NAME/i2pd.conf diff --git a/debian/i2pd.install b/debian/i2pd.install index d20b2c17..bde52854 100644 --- a/debian/i2pd.install +++ b/debian/i2pd.install @@ -1,7 +1,6 @@ -i2pd usr/sbin/ -contrib/i2pd.conf etc/i2pd/ +i2pd usr/bin/ +contrib/i2pd.conf etc/i2pd/ contrib/tunnels.conf etc/i2pd/ -contrib/subscriptions.txt etc/i2pd/ contrib/certificates/ usr/share/i2pd/ contrib/tunnels.d/README etc/i2pd/tunnels.conf.d/ -contrib/apparmor/usr.sbin.i2pd etc/apparmor.d +contrib/apparmor/usr.bin.i2pd etc/apparmor.d diff --git a/debian/i2pd.links b/debian/i2pd.links index a149967f..16558791 100644 --- a/debian/i2pd.links +++ b/debian/i2pd.links @@ -1,5 +1,4 @@ -etc/i2pd/i2pd.conf var/lib/i2pd/i2pd.conf +etc/i2pd/i2pd.conf var/lib/i2pd/i2pd.conf etc/i2pd/tunnels.conf var/lib/i2pd/tunnels.conf -etc/i2pd/subscriptions.txt var/lib/i2pd/subscriptions.txt etc/i2pd/tunnels.conf.d var/lib/i2pd/tunnels.d usr/share/i2pd/certificates var/lib/i2pd/certificates diff --git a/debian/i2pd.logrotate b/debian/i2pd.logrotate deleted file mode 100644 index 63c44270..00000000 --- a/debian/i2pd.logrotate +++ /dev/null @@ -1,9 +0,0 @@ -/var/log/i2pd/i2pd.log { - rotate 6 - daily - missingok - notifempty - compress - delaycompress - copytruncate -} diff --git a/debian/i2pd.logrotate b/debian/i2pd.logrotate new file mode 120000 index 00000000..40dea037 --- /dev/null +++ b/debian/i2pd.logrotate @@ -0,0 +1 @@ +../contrib/i2pd.logrotate \ No newline at end of file diff --git a/debian/patches/01-tune-build-opts.patch b/debian/patches/01-tune-build-opts.patch deleted file mode 100644 index dd2b4638..00000000 --- a/debian/patches/01-tune-build-opts.patch +++ /dev/null @@ -1,17 +0,0 @@ -diff --git a/Makefile b/Makefile -index bdadfe0..2f71eec 100644 ---- a/Makefile -+++ b/Makefile -@@ -9,10 +9,10 @@ DEPS := obj/make.dep - - include filelist.mk - --USE_AESNI := yes -+USE_AESNI := no --USE_AVX := yes -+USE_AVX := no - USE_STATIC := no - USE_MESHNET := no - USE_UPNP := no - DEBUG := yes - diff --git a/debian/patches/01-upnp.patch b/debian/patches/01-upnp.patch new file mode 100644 index 00000000..74d36c06 --- /dev/null +++ b/debian/patches/01-upnp.patch @@ -0,0 +1,17 @@ +Description: Enable UPnP usage in package +Author: r4sas + +Reviewed-By: r4sas +Last-Update: 2024-12-30 + +--- i2pd.orig/Makefile ++++ i2pd/Makefile +@@ -31,7 +31,7 @@ # import source files lists + include filelist.mk + + USE_STATIC := $(or $(USE_STATIC),no) +-USE_UPNP := $(or $(USE_UPNP),no) ++USE_UPNP := $(or $(USE_UPNP),yes) + DEBUG := $(or $(DEBUG),yes) + + # for debugging purposes only, when commit hash needed in trunk builds in i2pd version string diff --git a/debian/patches/02-fix-1210.patch b/debian/patches/02-fix-1210.patch deleted file mode 100644 index 6a4caf94..00000000 --- a/debian/patches/02-fix-1210.patch +++ /dev/null @@ -1,25 +0,0 @@ -Description: fix #1210 - Disables two options, which not presented in old systemd versions -Author: r4sas - -Bug: https://github.com/PurpleI2P/i2pd/issues/1210 -Reviewed-By: r4sas -Last-Update: 2018-08-25 - ---- a/contrib/i2pd.service -+++ b/contrib/i2pd.service -@@ -6,10 +6,10 @@ After=network.target - [Service] - User=i2pd - Group=i2pd --RuntimeDirectory=i2pd --RuntimeDirectoryMode=0700 --LogsDirectory=i2pd --LogsDirectoryMode=0700 -+#RuntimeDirectory=i2pd -+#RuntimeDirectoryMode=0700 -+#LogsDirectory=i2pd -+#LogsDirectoryMode=0700 - Type=forking - ExecStart=/usr/sbin/i2pd --conf=/etc/i2pd/i2pd.conf --tunconf=/etc/i2pd/tunnels.conf --tunnelsdir=/etc/i2pd/tunnels.conf.d --pidfile=/var/run/i2pd/i2pd.pid --logfile=/var/log/i2pd/i2pd.log --daemon --service - ExecReload=/bin/kill -HUP $MAINPID diff --git a/debian/patches/series b/debian/patches/series index 002802b5..f97fdf65 100644 --- a/debian/patches/series +++ b/debian/patches/series @@ -1,2 +1 @@ -01-tune-build-opts.patch -02-fix-1210.patch +01-upnp.patch diff --git a/debian/postinst b/debian/postinst index 9c9e74ae..720753fd 100755 --- a/debian/postinst +++ b/debian/postinst @@ -12,7 +12,6 @@ case "$1" in # Create user and group as a system user. if getent passwd $I2PDUSER > /dev/null 2>&1; then groupadd -f $I2PDUSER || true - usermod -s "/bin/false" -e 1 $I2PDUSER > /dev/null || true else adduser --system --quiet --group --home $I2PDHOME $I2PDUSER fi @@ -23,7 +22,7 @@ case "$1" in chmod 640 $LOGFILE chown -f ${I2PDUSER}:adm $LOGFILE mkdir -p -m0750 $I2PDHOME - chown -f -R -P ${I2PDUSER}:${I2PDUSER} ${I2PDHOME} + chown -f -P ${I2PDUSER}:${I2PDUSER} ${I2PDHOME} ;; abort-upgrade|abort-remove|abort-deconfigure) echo "Aborting upgrade" diff --git a/debian/postrm b/debian/postrm index 53ab15e7..ba69785e 100755 --- a/debian/postrm +++ b/debian/postrm @@ -6,7 +6,7 @@ if [ "$1" = "purge" ]; then rm -rf /etc/i2pd rm -rf /var/lib/i2pd rm -rf /var/log/i2pd - rm -rf /var/run/i2pd + rm -rf /run/i2pd fi #DEBHELPER# diff --git a/debian/rules b/debian/rules index 77ecd7b7..fc769066 100755 --- a/debian/rules +++ b/debian/rules @@ -1,22 +1,13 @@ #!/usr/bin/make -f -# -*- makefile -*- - -# Uncomment this to turn on verbose mode. #export DH_VERBOSE=1 +export DEB_BUILD_MAINT_OPTIONS = hardening=+all -DEB_BUILD_MAINT_OPTIONS=hardening=+bindnow -#DPKG_EXPORT_BUILDFLAGS = 1 -#include /usr/share/dpkg/buildflags.mk -#CXXFLAGS+=$(CPPFLAGS) -#PREFIX=/usr +include /usr/share/dpkg/architecture.mk + +export DEB_CXXFLAGS_MAINT_APPEND = -Wall -pedantic +export DEB_LDFLAGS_MAINT_APPEND = %: - dh $@ --parallel -# dh_apparmor --profile-name=usr.sbin.i2pd -pi2pd + dh $@ -override_dh_strip: - dh_strip --dbg-package=i2pd-dbg - -## uncomment this if you have "missing info" problem when building package -#override_dh_shlibdeps: -# dh_shlibdeps --dpkg-shlibdeps-params=--ignore-missing-info +override_dh_auto_install: diff --git a/debian/watch b/debian/watch index 55cda021..2ec6c29b 100644 --- a/debian/watch +++ b/debian/watch @@ -1,3 +1,4 @@ -version=3 -opts=filenamemangle=s/.+\/v?(\d\S*)\.tar\.gz/i2pd-$1\.tar\.gz/ \ - https://github.com/PurpleI2P/i2pd/tags .*/v?(\d\S*)\.tar\.gz +version=4 +opts="filenamemangle=s%(?:.*?)?v?(\d[\d.]*)\.tar\.gz%i2pd-$1.tar.gz%" \ + https://github.com/PurpleI2P/i2pd/tags \ + (?:.*?/)?(\d[\d.]*)\.tar\.gz debian uupdate diff --git a/filelist.mk b/filelist.mk index 8d451dc9..d8f503e6 100644 --- a/filelist.mk +++ b/filelist.mk @@ -5,13 +5,13 @@ # SSUSession.cpp SSUData.cpp Streaming.cpp Identity.cpp TransitTunnel.cpp \ # Transports.cpp Tunnel.cpp TunnelEndpoint.cpp TunnelPool.cpp TunnelGateway.cpp \ # Destination.cpp Base.cpp I2PEndian.cpp FS.cpp Config.cpp Family.cpp \ -# Config.cpp HTTP.cpp Timestamp.cpp util.cpp api.cpp Event.cpp Gost.cpp +# Config.cpp HTTP.cpp Timestamp.cpp util.cpp api.cpp Gost.cpp LIB_SRC = $(wildcard $(LIB_SRC_DIR)/*.cpp) #LIB_CLIENT_SRC = \ # AddressBook.cpp BOB.cpp ClientContext.cpp I2PTunnel.cpp I2PService.cpp MatchedDestination.cpp \ -# SAM.cpp SOCKS.cpp HTTPProxy.cpp I2CP.cpp WebSocks.cpp +# SAM.cpp SOCKS.cpp HTTPProxy.cpp I2CP.cpp LIB_CLIENT_SRC = $(wildcard $(LIB_CLIENT_SRC_DIR)/*.cpp) @@ -19,4 +19,8 @@ LIB_CLIENT_SRC = $(wildcard $(LIB_CLIENT_SRC_DIR)/*.cpp) #DAEMON_SRC = \ # HTTPServer.cpp I2PControl.cpp UPnP.cpp Daemon.cpp i2pd.cpp +LANG_SRC = $(wildcard $(LANG_SRC_DIR)/*.cpp) + +WRAP_LIB_SRC = $(wildcard $(WRAP_SRC_DIR)/*.cpp) + DAEMON_SRC = $(wildcard $(DAEMON_SRC_DIR)/*.cpp) diff --git a/i18n/Afrikaans.cpp b/i18n/Afrikaans.cpp new file mode 100644 index 00000000..b69c42ef --- /dev/null +++ b/i18n/Afrikaans.cpp @@ -0,0 +1,81 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Afrikaans localization file + +namespace i2p +{ +namespace i18n +{ +namespace afrikaans // language namespace +{ + // language name in lowercase + static std::string language = "afrikaans"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"failed", "Het misluk"}, + {"unknown", "onbekend"}, + {"Tunnels", "Tonnels"}, + {"I2P tunnels", "I2P tonnels"}, + {"SAM sessions", "SAM sessies"}, + {"OK", "LEKKER"}, + {"Testing", "Besig om te toets"}, + {"Firewalled", "Vuurmuur'd"}, + {"Unknown", "Onbekend"}, + {"Error", "Fout"}, + {"Offline", "Aflyn"}, + {"Uptime", "Optyd"}, + {"Network status", "Netwerk status"}, + {"Network status v6", "Netwerk status v6"}, + {"Family", "Familie"}, + {"Received", "Ontvang"}, + {"Sent", "Gestuur"}, + {"Hidden content. Press on text to see.", "Hidden content. Druk om te sien."}, + {"Router Ident", "Router Ident"}, + {"Router Family", "Router Familie"}, + {"Enabled", "Geaktiveer"}, + {"Disabled", "Gedeaktiveer"}, + {"Change", "Verander"}, + {"Change language", "Verander taal"}, + {"Description", "Beskrywing"}, + {"Submit", "Stuur"}, + {"Proxy error", "Proxy-fout"}, + {"Host", "Gasheer"}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d dag", "%d dae"}}, + {"%d hours", {"%d uur", "%d ure"}}, + {"%d minutes", {"%d minuut", "%d minute"}}, + {"%d seconds", {"%d seconde", "%d sekondes"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Armenian.cpp b/i18n/Armenian.cpp new file mode 100644 index 00000000..67955d8a --- /dev/null +++ b/i18n/Armenian.cpp @@ -0,0 +1,204 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Armenian localization file + +namespace i2p +{ +namespace i18n +{ +namespace armenian // language namespace +{ + // language name in lowercase + static std::string language = "armenian"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f ԿիԲ"}, + {"%.2f MiB", "%.2f ՄիԲ"}, + {"%.2f GiB", "%.2f ԳիԲ"}, + {"building", "կառուցվում է"}, + {"failed", "Անհաջող"}, + {"expiring", "Լրանում է"}, + {"established", "կարգավոյված է"}, + {"unknown", "անհայտ"}, + {"exploratory", "հետազոտոկան"}, + {"Purple I2P Webconsole", "Վեբ-կոնսոլ Purple I2P"}, + {"i2pd webconsole", "Վեբ-կոնսոլ i2pd"}, + {"Main page", "Գլխավոր էջ"}, + {"Router commands", "Երթուղիչի հրահանգներ"}, + {"Local Destinations", "Տեղական վերջնակետերը"}, + {"LeaseSets", "ԼիզՍեթեր"}, + {"Tunnels", "Թունելներ"}, + {"Transit Tunnels", "Տարանցիկ թունելներ"}, + {"Transports", "Տրանսպորտ"}, + {"I2P tunnels", "I2P թունելներ"}, + {"SAM sessions", "SAM նստաշրջաններ"}, + {"ERROR", "ՍԽԱԼ"}, + {"OK", "ԼԱՎ"}, + {"Testing", "Փորձարկում"}, + {"Firewalled", "Արգելափակված է դրսից"}, + {"Unknown", "Անհայտ"}, + {"Proxy", "Պրոկսի"}, + {"Mesh", "MESH-ցանց"}, + {"Clock skew", "Ոչ ճշգրիտ ժամանակ"}, + {"Offline", "Օֆլայն"}, + {"Symmetric NAT", "Սիմետրիկ NAT"}, + {"Full cone NAT", "Full cone NAT"}, + {"Uptime", "Առկայություն"}, + {"Network status", "Ցանցի կարգավիճակ"}, + {"Network status v6", "Ցանցի կարգավիճակ v6"}, + {"Stopping in", "Դադարում"}, + {"Family", "Խմբատեսակ"}, + {"Tunnel creation success rate", "Հաջողությամբ կառուցված թունելներ"}, + {"Received", "Ստացվել է"}, + {"%.2f KiB/s", "%.2f ԿիԲ/վ"}, + {"Sent", "Ուղարկվել է"}, + {"Transit", "Տարանցում"}, + {"Data path", "Տվյալների ուղին"}, + {"Hidden content. Press on text to see.", "Թաքցված բովանդակություն: Տեսնելու համար սեղմեկ տեքստին:"}, + {"Router Ident", "Երթուղիչի նույնականացուցիչ"}, + {"Router Family", "Երթուղիչի խումբը"}, + {"Router Caps", "Երթուղիչի հատկություններ"}, + {"Version", "Տարբերակ"}, + {"Our external address", "Մեր արտաքին հասցեն"}, + {"supported", "համատեղելի է"}, + {"Routers", "Երթուղիչներ"}, + {"Floodfills", "Floodfills-ներ"}, + {"Client Tunnels", "Oգտատիրական թունելներ"}, + {"Services", "Ծառայություններ"}, + {"Enabled", "Միացված է"}, + {"Disabled", "Անջատված է"}, + {"Encrypted B33 address", "Գաղտնագրված B33 հասցեներ"}, + {"Address registration line", "Հասցեի գրանցման տող"}, + {"Domain", "Տիրույթ"}, + {"Generate", "Գեներացնել"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", " Նշում. արդյունքի տողը կարող է օգտագործվել միայն 2LD տիրույթներ գրանցելու համար (example.i2p): Ենթատիրույթներ գրանցելու համար խնդրում ենք օգտագործել i2pd-tools գործիքակազմը:"}, + {"Address", "Հասցե"}, + {"Type", "Տեսակը"}, + {"EncType", "Գաղտնագրի տեսակը"}, + {"Inbound tunnels", "Մուտքային թունելներ"}, + {"%dms", "%dմլվ"}, + {"Outbound tunnels", "Ելքային թունելներ"}, + {"Tags", "Թեգեր"}, + {"Incoming", "Մուտքային"}, + {"Outgoing", "ելքային"}, + {"Destination", "Նշանակման վայր"}, + {"Amount", "Քանակ"}, + {"Incoming Tags", "Մուտքային պիտակներ"}, + {"Tags sessions", "Նստաշրջանի պիտակներ"}, + {"Status", "Կարգավիճակ"}, + {"Local Destination", "Տեղական նշանակման կետ"}, + {"Streams", "Հոսքեր"}, + {"Close stream", "Փակել հոսքը"}, + {"I2CP session not found", "I2CP նստաշրջանը գոյություն չունի"}, + {"I2CP is not enabled", "I2CP միացված է"}, + {"Invalid", "Անվավեր"}, + {"Store type", "Պահեստավորման տեսակը"}, + {"Expires", "Սպառվում է"}, + {"Non Expired Leases", "Չսպառված Lease-եր"}, + {"Gateway", "Դարպաս"}, + {"TunnelID", "Թունելի ID"}, + {"EndDate", "Ավարտ"}, + {"Queue size", "Հերթի չափսը"}, + {"Run peer test", "Գործարկել փորձարկումը"}, + {"Decline transit tunnels", "Մերժել տարանցիկ թունելներ"}, + {"Accept transit tunnels", "Ընդունել տարանցիկ թունելներ"}, + {"Cancel graceful shutdown", "Չեղարկել սահուն անջատումը"}, + {"Start graceful shutdown", "Սկսել սահուն անջատումը"}, + {"Force shutdown", "Հարկադիր անջատում"}, + {"Reload external CSS styles", "Վերաբեռնեք CSS ոճաթերթը"}, + {"Note: any action done here are not persistent and not changes your config files.", " Նշում․ այստեղ կատարված ցանկացած գործողություն մշտական ​​չէ և չի փոխում ձեր կազմաձևման ֆայլերը։"}, + {"Logging level", "Գրառման աստիճանը"}, + {"Transit tunnels limit", "Տարանցիկ թունելների սահմանափակում"}, + {"Change", "Փոփոխել"}, + {"Change language", "Փոփոխել լեզուն"}, + {"no transit tunnels currently built", "ընթացիկ կառուցված տարանցիկ թունելներ գոյություն չունեն"}, + {"SAM disabled", "SAM-ն անջատված է"}, + {"no sessions currently running", "ներկայումս գործող նստաշրջաններ գոյություն չունեն"}, + {"SAM session not found", "SAM նստաշրջան գոյություն չունի"}, + {"SAM Session", "SAM նստաշրջան"}, + {"Server Tunnels", "Սերվերային թունելներ"}, + {"Client Forwards", "Օգտատիրական փոխանցումներ"}, + {"Server Forwards", "Սերվերային փոխանցումներ"}, + {"Unknown page", "Անհայտ էջ"}, + {"Invalid token", "Սխալ տոկեն"}, + {"SUCCESS", "ՀԱՋՈՂՎԱԾ"}, + {"Stream closed", "Հոսքն անջատված է"}, + {"Stream not found or already was closed", "Հոսքը գոյություն չունի կամ արդեն ավարտված է"}, + {"Destination not found", "Հասցեի վայրը չի գտնվել"}, + {"StreamID can't be null", "StreamID-ն չի կարող լինել դատարկ"}, + {"Return to destination page", "Վերադառնալ նախորդ էջի հասցե"}, + {"Back to commands list", "Վերադառնալ հրահանգների ցուցակ"}, + {"Description", "Նկարագրություն"}, + {"A bit information about service on domain", "Մի փոքր տեղեկատվություն տիրոիյթում գտնվող ծառայության մասին"}, + {"Submit", "Ուղարկվել"}, + {"Domain can't end with .b32.i2p", "Տիրույթը չպետք է վերջանա .b32.i2p-ով"}, + {"Domain must end with .i2p", "Տիրույթը պետք է վերջանա .i2p-ով"}, + {"Such destination is not found", "Այդիպսի հասցե գոյություն չունի"}, + {"Unknown command", "Անհայտ հրահանգ"}, + {"Command accepted", "Հրարահանգն ընդունված է"}, + {"Proxy error", "Պրոկսի սխալ"}, + {"Proxy info", "Պրոկսի տեղեկություն"}, + {"Proxy error: Host not found", "Պրոկսի սխալ՝ նման հոսթ գոյություն չունի"}, + {"Remote host not found in router's addressbook", "Դեպի հոսթ կատարված հարցումը գոյություն չունի երթուղիչի հասցեագրքում"}, + {"You may try to find this host on jump services below", "Ստորև Դուք կարող եք գտնել այս հոսթը jump ծառայությունների միջոցով"}, + {"Invalid request", "Սխալ հարցում"}, + {"Proxy unable to parse your request", "Պրոկսին չի կարող հասկանալ Ձեր հարցումը"}, + {"Invalid request URI", "Սխալ ձևավորված URI հարցում"}, + {"Can't detect destination host from request", "Չհաջողվեց հայնտաբերեկ վայրի հասցեն նշված հարցմամբ"}, + {"Outproxy failure", "Սխալ արտաքին պրոքսի"}, + {"Bad outproxy settings", "Սխալ արտաքին պրոկսի կարգավորումներ"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Հոսթ %s Հարցումը I2P ցանցից դուրս է, բայց արտաքին պրոքսին միացված չէ"}, + {"Unknown outproxy URL", "Արտաքին պրոքսիի անհայտ URL"}, + {"Cannot resolve upstream proxy", "Չհաջողվեց որոշել վերադաս պրոկսին"}, + {"Hostname is too long", "Հոսթի անունը չափազանց երկար է"}, + {"Cannot connect to upstream SOCKS proxy", "Չհաջողվեց միանալ վերադաս SOCKS պրոկսի սերվերին"}, + {"Cannot negotiate with SOCKS proxy", "Չհաջողվեց պայմանավորվել վերադաս SOCKS պրոկսիի հետ"}, + {"CONNECT error", "Սխալ CONNECT հարցում"}, + {"Failed to connect", "Միանալ չhաջողվեց"}, + {"SOCKS proxy error", "Սխալ SOCKS պրոկսի"}, + {"Failed to send request to upstream", "Չհաջողվեց հարցումն ուղարկել վերադաս պրոկսիին"}, + {"No reply from SOCKS proxy", "Բացակայում է պատասխանը SOCKS պրոկսի սերվերի կողմից"}, + {"Cannot connect", "Հնարավոր չե միանալ"}, + {"HTTP out proxy not implemented", "Արտաքին HTTP պրոկսին դեռ իրականացված չէ"}, + {"Cannot connect to upstream HTTP proxy", "Չհաջողվեց միանալ վերադաս HTTP պրոկսի սերվերին"}, + {"Host is down", "Հոսթն անհասանելի է"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Հոսթի հետ կապը հաստատել չհաջողվեց, հնարավոր է այն անջատված է, փորձեք միանալ քիչ ուշ:"}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d օր", "%d օր"}}, + {"%d hours", {"%d ժամ", "%d ժամ"}}, + {"%d minutes", {"%d րոպե", "%d րոպե"}}, + {"%d seconds", {"%d վարկյան", "%d վարկյան"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Chinese.cpp b/i18n/Chinese.cpp new file mode 100644 index 00000000..e3b63ebd --- /dev/null +++ b/i18n/Chinese.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Simplified Chinese localization file + +namespace i2p +{ +namespace i18n +{ +namespace chinese // language namespace +{ + // language name in lowercase + static std::string language = "chinese"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "正在构建"}, + {"failed", "连接失败"}, + {"expiring", "即将过期"}, + {"established", "连接成功"}, + {"unknown", "未知"}, + {"exploratory", "探索"}, + {"Purple I2P Webconsole", "Purple I2P 网页控制台"}, + {"i2pd webconsole", "i2pd 网页控制台"}, + {"Main page", "主页"}, + {"Router commands", "路由命令"}, + {"Local Destinations", "本地目标"}, + {"LeaseSets", "租约集"}, + {"Tunnels", "隧道"}, + {"Transit Tunnels", "中转隧道"}, + {"Transports", "传输"}, + {"I2P tunnels", "I2P 隧道"}, + {"SAM sessions", "SAM 会话"}, + {"ERROR", "错误"}, + {"OK", "良好"}, + {"Testing", "测试中"}, + {"Firewalled", "受到防火墙限制"}, + {"Unknown", "未知"}, + {"Proxy", "代理"}, + {"Mesh", "自组网"}, + {"Clock skew", "时钟偏移"}, + {"Offline", "离线"}, + {"Symmetric NAT", "对称 NAT"}, + {"Full cone NAT", "全锥型NAT"}, + {"No Descriptors", "无描述符"}, + {"Uptime", "运行时间"}, + {"Network status", "网络状态"}, + {"Network status v6", "IPv6 网络状态"}, + {"Stopping in", "距停止还有："}, + {"Family", "家族"}, + {"Tunnel creation success rate", "隧道创建成功率"}, + {"Total tunnel creation success rate", "当前隧道创建成功率"}, + {"Received", "已接收"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "已发送"}, + {"Transit", "中转"}, + {"Data path", "数据文件路径"}, + {"Hidden content. Press on text to see.", "隐藏内容 请点击此处查看。"}, + {"Router Ident", "路由身份"}, + {"Router Family", "路由器家族"}, + {"Router Caps", "路由器类型"}, + {"Version", "版本"}, + {"Our external address", "外部地址"}, + {"supported", "支持"}, + {"Routers", "路由节点"}, + {"Floodfills", "洪泛节点"}, + {"Client Tunnels", "客户端隧道"}, + {"Services", "服务"}, + {"Enabled", "启用"}, + {"Disabled", "禁用"}, + {"Encrypted B33 address", "加密的 B33 地址"}, + {"Address registration line", "地址域名注册"}, + {"Domain", "域名"}, + {"Generate", "生成"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "注意： 结果字符串只能用于注册二级域名(例如：example.i2p)。若需注册三级域名，请使用 i2pd-tools。"}, + {"Address", "地址"}, + {"Type", "类型"}, + {"EncType", "加密类型"}, + {"Expire LeaseSet", "到期租约集"}, + {"Inbound tunnels", "入站隧道"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "出站隧道"}, + {"Tags", "标签"}, + {"Incoming", "传入"}, + {"Outgoing", "传出"}, + {"Destination", "目标"}, + {"Amount", "数量"}, + {"Incoming Tags", "传入标签"}, + {"Tags sessions", "标签会话"}, + {"Status", "状态"}, + {"Local Destination", "本地目标"}, + {"Streams", "流"}, + {"Close stream", "断开流"}, + {"Such destination is not found", "找不到此目标"}, + {"I2CP session not found", "未找到 I2CP 会话"}, + {"I2CP is not enabled", "I2CP 未启用"}, + {"Invalid", "无效"}, + {"Store type", "存储类型"}, + {"Expires", "过期时间"}, + {"Non Expired Leases", "未到期的租约"}, + {"Gateway", "网关"}, + {"TunnelID", "隧道 ID"}, + {"EndDate", "结束日期"}, + {"floodfill mode is disabled", "洪泛已禁用"}, + {"Queue size", "队列大小"}, + {"Run peer test", "运行节点测试"}, + {"Reload tunnels configuration", "重新载入隧道配置"}, + {"Decline transit tunnels", "拒绝中转隧道"}, + {"Accept transit tunnels", "允许中转隧道"}, + {"Cancel graceful shutdown", "取消平滑关闭"}, + {"Start graceful shutdown", "平滑关闭"}, + {"Force shutdown", "强制停止"}, + {"Reload external CSS styles", "重载外部 CSS 样式"}, + {"Note: any action done here are not persistent and not changes your config files.", "注意： 此处完成的任何操作都不是永久的，不会更改您的配置文件。"}, + {"Logging level", "日志级别"}, + {"Transit tunnels limit", "中转隧道限制"}, + {"Change", "修改"}, + {"Change language", "更改语言"}, + {"no transit tunnels currently built", "目前未构建中转隧道"}, + {"SAM disabled", "SAM 已禁用"}, + {"no sessions currently running", "没有正在运行的会话"}, + {"SAM session not found", "未找到 SAM 会话"}, + {"SAM Session", "SAM 会话"}, + {"Server Tunnels", "服务器隧道"}, + {"Client Forwards", "客户端转发"}, + {"Server Forwards", "服务器转发"}, + {"Unknown page", "未知页面"}, + {"Invalid token", "无效令牌"}, + {"SUCCESS", "成功"}, + {"Stream closed", "流已关闭"}, + {"Stream not found or already was closed", "流未找到或已关闭"}, + {"Destination not found", "找不到目标"}, + {"StreamID can't be null", "StreamID 不能为空"}, + {"Return to destination page", "返回目标页面"}, + {"You will be redirected in %d seconds", "您将在%d秒内被重定向"}, + {"LeaseSet expiration time updated", "租约集到期时间已更新"}, + {"LeaseSet is not found or already expired", "租约集未找到或已过期"}, + {"Transit tunnels count must not exceed %d", "中转隧道数量限制为 %d"}, + {"Back to commands list", "返回命令列表"}, + {"Register at reg.i2p", "在 reg.i2p 注册域名"}, + {"Description", "描述"}, + {"A bit information about service on domain", "在此域名上运行的服务的一些信息"}, + {"Submit", "提交"}, + {"Domain can't end with .b32.i2p", "域名不能以 .b32.i2p 结尾"}, + {"Domain must end with .i2p", "域名必须以 .i2p 结尾"}, + {"Unknown command", "未知指令"}, + {"Command accepted", "已接受指令"}, + {"Proxy error", "代理错误"}, + {"Proxy info", "代理信息"}, + {"Proxy error: Host not found", "代理错误：未找到主机"}, + {"Remote host not found in router's addressbook", "在路由地址簿中未找到远程主机"}, + {"You may try to find this host on jump services below", "您可以尝试在下方的跳转服务中找到此主机"}, + {"Invalid request", "无效请求"}, + {"Proxy unable to parse your request", "代理无法解析您的请求"}, + {"Addresshelper is not supported", "不支持地址助手"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "主机 %s 已在路由地址簿中。请注意：此地址的来源可能是有害的！点击此处更新记录：继续"}, + {"Addresshelper forced update rejected", "地址助手强制更新被拒绝"}, + {"To add host %s in router's addressbook, click here: Continue.", "若要在路由器地址簿中添加主机 %s 请点击这里： 继续"}, + {"Addresshelper request", "请求地址助手"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "主机 %s 已通过地址助手添加到路由地址簿中。点击此处继续：继续"}, + {"Addresshelper adding", "正在添加地址助手"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "主机 %s 已在路由地址簿中。点击此处更新记录：继续"}, + {"Addresshelper update", "更新地址助手"}, + {"Invalid request URI", "无效的 URI 请求"}, + {"Can't detect destination host from request", "无法从请求中检测到目标主机"}, + {"Outproxy failure", "出口代理故障"}, + {"Bad outproxy settings", "错误的出口代理设置"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "主机 %s 不在 I2P 网络内，但出口代理未启用"}, + {"Unknown outproxy URL", "未知的出口代理地址"}, + {"Cannot resolve upstream proxy", "无法解析上游代理"}, + {"Hostname is too long", "主机名过长"}, + {"Cannot connect to upstream SOCKS proxy", "无法连接到上游 SOCKS 代理"}, + {"Cannot negotiate with SOCKS proxy", "无法与 SOCKS 代理协商"}, + {"CONNECT error", "连接错误"}, + {"Failed to connect", "连接失败"}, + {"SOCKS proxy error", "SOCKS 代理错误"}, + {"Failed to send request to upstream", "向上游发送请求失败"}, + {"No reply from SOCKS proxy", "没有来自 SOCKS 代理的回复"}, + {"Cannot connect", "无法连接"}, + {"HTTP out proxy not implemented", "HTTP 出口代理未实现"}, + {"Cannot connect to upstream HTTP proxy", "无法连接到上游 HTTP 代理"}, + {"Host is down", "主机已关闭"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "无法创建到目标主机的连接。主机可能已下线，请稍后再试。"}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d 天"}}, + {"%d hours", {"%d 小时"}}, + {"%d minutes", {"%d 分钟"}}, + {"%d seconds", {"%d 秒"}}, + {"", {""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Czech.cpp b/i18n/Czech.cpp new file mode 100644 index 00000000..94803354 --- /dev/null +++ b/i18n/Czech.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Czech localization file + +namespace i2p +{ +namespace i18n +{ +namespace czech // language namespace +{ + // language name in lowercase + static std::string language = "czech"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return (n == 1) ? 0 : (n >= 2 && n <= 4) ? 1 : 2; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "vytváří se"}, + {"failed", "selhalo"}, + {"expiring", "vyprší platnost"}, + {"established", "vytvořeno"}, + {"unknown", "neznámý"}, + {"exploratory", "průzkumné"}, + {"Purple I2P Webconsole", "Purple I2P webová konzole"}, + {"i2pd webconsole", "i2pd webová konzole"}, + {"Main page", "Hlavní stránka"}, + {"Router commands", "Router příkazy"}, + {"Local Destinations", "Místní cíle"}, + {"LeaseSets", "Sety pronájmu"}, + {"Tunnels", "Tunely"}, + {"Transit Tunnels", "Tranzitní tunely"}, + {"Transports", "Transporty"}, + {"I2P tunnels", "I2P tunely"}, + {"SAM sessions", "SAM relace"}, + {"ERROR", "CHYBA"}, + {"OK", "OK"}, + {"Testing", "Testuji"}, + {"Firewalled", "Za Firewallem"}, + {"Unknown", "Neznámý"}, + {"Proxy", "Proxy"}, + {"Mesh", "Síť"}, + {"Clock skew", "Časová nesrovnalost"}, + {"Offline", "Offline"}, + {"Symmetric NAT", "Symetrický NAT"}, + {"Full cone NAT", "Full cone NAT"}, + {"No Descriptors", "Žádné popisovače"}, + {"Uptime", "Doba provozu"}, + {"Network status", "Stav sítě"}, + {"Network status v6", "Stav sítě v6"}, + {"Stopping in", "Zastavuji za"}, + {"Family", "Rodina"}, + {"Tunnel creation success rate", "Úspěšnost vytváření tunelů"}, + {"Total tunnel creation success rate", "Celková míra úspěšnosti vytváření tunelů"}, + {"Received", "Přijato"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Odesláno"}, + {"Transit", "Tranzit"}, + {"Data path", "Cesta k datovým souborům"}, + {"Hidden content. Press on text to see.", "Skrytý obsah. Pro zobrazení klikněte sem."}, + {"Router Ident", "Routerová Identita"}, + {"Router Family", "Rodina routerů"}, + {"Router Caps", "Omezení Routerů"}, + {"Version", "Verze"}, + {"Our external address", "Naše externí adresa"}, + {"supported", "podporováno"}, + {"Routers", "Routery"}, + {"Floodfills", "Floodfilly"}, + {"Client Tunnels", "Klientské tunely"}, + {"Services", "Služby"}, + {"Enabled", "Zapnuto"}, + {"Disabled", "Vypnuto"}, + {"Encrypted B33 address", "Šifrovaná adresa B33"}, + {"Address registration line", "Registrační řádek adresy"}, + {"Domain", "Doména"}, + {"Generate", "Vygenerovat"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Poznámka: výsledný řetězec může být použit pouze pro registraci 2LD domén (example.i2p). Pro registraci subdomén použijte prosím i2pd-tools."}, + {"Address", "Adresa"}, + {"Type", "Typ"}, + {"EncType", "EncType"}, + {"Expire LeaseSet", "Zrušit platnost setu pronájmu"}, + {"Inbound tunnels", "Příchozí tunely"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Odchozí tunely"}, + {"Tags", "Štítky"}, + {"Incoming", "Příchozí"}, + {"Outgoing", "Odchozí"}, + {"Destination", "Destinace"}, + {"Amount", "Množství"}, + {"Incoming Tags", "Příchozí štítky"}, + {"Tags sessions", "Relace štítků"}, + {"Status", "Stav"}, + {"Local Destination", "Místní cíl"}, + {"Streams", "Toky"}, + {"Close stream", "Uzavřít tok"}, + {"Such destination is not found", "Takováto destinace nebyla nalezena"}, + {"I2CP session not found", "I2CP relace nenalezena"}, + {"I2CP is not enabled", "I2CP není zapnuto"}, + {"Invalid", "Neplatný"}, + {"Store type", "Druh uložení"}, + {"Expires", "Vyprší"}, + {"Non Expired Leases", "Pronájmy, kterým nevypršela platnost"}, + {"Gateway", "Brána"}, + {"TunnelID", "ID tunelu"}, + {"EndDate", "Datum ukončení"}, + {"floodfill mode is disabled", "režim floodfill je vypnut"}, + {"Queue size", "Velikost fronty"}, + {"Run peer test", "Spustit peer test"}, + {"Reload tunnels configuration", "Znovu načíst nastavení tunelů"}, + {"Decline transit tunnels", "Odmítnout tranzitní tunely"}, + {"Accept transit tunnels", "Přijmout tranzitní tunely"}, + {"Cancel graceful shutdown", "Zrušit hladké vypnutí"}, + {"Start graceful shutdown", "Zahájit hladké vypnutí"}, + {"Force shutdown", "Vynutit vypnutí"}, + {"Reload external CSS styles", "Znovu načíst externí CSS"}, + {"Note: any action done here are not persistent and not changes your config files.", "Poznámka: žádná vykonaná akce zde není trvalá a nemění konfigurační soubory."}, + {"Logging level", "Úroveň logování"}, + {"Transit tunnels limit", "Limit tranzitních tunelů"}, + {"Change", "Změnit"}, + {"Change language", "Změnit jazyk"}, + {"no transit tunnels currently built", "Žádný tranzitní tunel není momentálně vytvořen"}, + {"SAM disabled", "SAM vypnutý"}, + {"no sessions currently running", "Momentálně nejsou spuštěné žádné relace"}, + {"SAM session not found", "SAM relace nenalezena"}, + {"SAM Session", "SAM Relace"}, + {"Server Tunnels", "Server Tunely"}, + {"Client Forwards", "Přesměrování Klienta"}, + {"Server Forwards", "Přesměrování Serveru"}, + {"Unknown page", "Neznámá stránka"}, + {"Invalid token", "Neplatný token"}, + {"SUCCESS", "ÚSPĚCH"}, + {"Stream closed", "Tok uzavřen"}, + {"Stream not found or already was closed", "Tok nenalezen nebo byl již uzavřen"}, + {"Destination not found", "Destinace nenalezena"}, + {"StreamID can't be null", "StreamID nemůže být null"}, + {"Return to destination page", "Zpět na stránku destinací"}, + {"You will be redirected in %d seconds", "Budete přesměrováni za %d sekund"}, + {"LeaseSet expiration time updated", "Aktualizován čas vypršení platnosti setu pronájmu"}, + {"LeaseSet is not found or already expired", "Set pronájmu není k nalezení nebo již vypršela jeho platnost"}, + {"Transit tunnels count must not exceed %d", "Počet tranzitních tunelů nesmí překročit %d"}, + {"Back to commands list", "Zpět na seznam příkazů"}, + {"Register at reg.i2p", "Zaregistrovat na reg.i2p"}, + {"Description", "Popis"}, + {"A bit information about service on domain", "Trochu informací o službě na doméně"}, + {"Submit", "Odeslat"}, + {"Domain can't end with .b32.i2p", "Doména nesmí končit na .b32.i2p"}, + {"Domain must end with .i2p", "Doména musí končit s .i2p"}, + {"Unknown command", "Neznámý příkaz"}, + {"Command accepted", "Příkaz přijat"}, + {"Proxy error", "Chyba proxy serveru"}, + {"Proxy info", "Proxy informace"}, + {"Proxy error: Host not found", "Chyba proxy serveru: Hostitel nenalezen"}, + {"Remote host not found in router's addressbook", "Vzdálený hostitel nebyl nalezen v adresáři routeru"}, + {"You may try to find this host on jump services below", "Můžete se pokusit najít tohoto hostitele na startovacích službách níže"}, + {"Invalid request", "Neplatný požadavek"}, + {"Proxy unable to parse your request", "Proxy server nemohl zpracovat váš požadavek"}, + {"Addresshelper is not supported", "Addresshelper není podporován"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Hostitel %s je již v adresáři routeru. Buďte opatrní: zdroj této URL může být škodlivý! Klikněte zde pro aktualizaci záznamu: Pokračovat."}, + {"Addresshelper forced update rejected", "Addresshelperem vynucená aktualizace zamítnuta"}, + {"To add host %s in router's addressbook, click here: Continue.", "Pro přidání hostitele %s do adresáře routeru, klikněte zde: Pokračovat."}, + {"Addresshelper request", "Požadavek Addresshelperu"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Hostitel %s přidán do adresáře routeru od pomocníka. Klikněte zde pro pokračování: Pokračovat."}, + {"Addresshelper adding", "Addresshelper přidávání"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Hostitel %s je již v adresáři routeru. Klikněte zde pro aktualizaci záznamu: Pokračovat."}, + {"Addresshelper update", "Addresshelper aktualizace"}, + {"Invalid request URI", "Neplatný URI požadavek"}, + {"Can't detect destination host from request", "Nelze zjistit cílového hostitele z požadavku"}, + {"Outproxy failure", "Outproxy selhání"}, + {"Bad outproxy settings", "Špatné outproxy nastavení"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Hostitel %s není uvnitř I2P sítě a outproxy není nastavena"}, + {"Unknown outproxy URL", "Neznámá outproxy URL"}, + {"Cannot resolve upstream proxy", "Nelze rozluštit upstream proxy server"}, + {"Hostname is too long", "Název hostitele je příliš dlouhý"}, + {"Cannot connect to upstream SOCKS proxy", "Nelze se připojit k upstream SOCKS proxy serveru"}, + {"Cannot negotiate with SOCKS proxy", "Nelze vyjednávat se SOCKS proxy serverem"}, + {"CONNECT error", "Chyba PŘIPOJENÍ"}, + {"Failed to connect", "Připojení se nezdařilo"}, + {"SOCKS proxy error", "Chyba SOCKS proxy serveru"}, + {"Failed to send request to upstream", "Odeslání žádosti upstream serveru se nezdařilo"}, + {"No reply from SOCKS proxy", "Žádná odpověď od SOCKS proxy serveru"}, + {"Cannot connect", "Nelze se připojit"}, + {"HTTP out proxy not implemented", "HTTP out proxy není implementován"}, + {"Cannot connect to upstream HTTP proxy", "Nelze se připojit k upstream HTTP proxy serveru"}, + {"Host is down", "Hostitel je nedostupný"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Připojení k požadovanému hostiteli nelze vytvořit, může být nedostupný. Zkuste to, prosím, znovu později."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d den", "%d dny", "%d dní", "%d dní"}}, + {"%d hours", {"%d hodina", "%d hodiny", "%d hodin", "%d hodin"}}, + {"%d minutes", {"%d minuta", "%d minuty", "%d minut", "%d minut"}}, + {"%d seconds", {"%d vteřina", "%d vteřiny", "%d vteřin", "%d vteřin"}}, + {"", {"", "", "", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/English.cpp b/i18n/English.cpp new file mode 100644 index 00000000..fb774527 --- /dev/null +++ b/i18n/English.cpp @@ -0,0 +1,50 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// English localization file +// This is an example translation file without strings in it. + +namespace i2p +{ +namespace i18n +{ +namespace english // language namespace +{ + // language name in lowercase + static std::string language = "english"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"", ""}, + }; + + static std::map> plurals + { + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/French.cpp b/i18n/French.cpp new file mode 100644 index 00000000..985296a3 --- /dev/null +++ b/i18n/French.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// French localization file + +namespace i2p +{ +namespace i18n +{ +namespace french // language namespace +{ + // language name in lowercase + static std::string language = "french"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f Kio"}, + {"%.2f MiB", "%.2f Mio"}, + {"%.2f GiB", "%.2f Gio"}, + {"building", "En construction"}, + {"failed", "échoué"}, + {"expiring", "expiré"}, + {"established", "établi"}, + {"unknown", "inconnu"}, + {"exploratory", "exploratoire"}, + {"Purple I2P Webconsole", "Console web Purple I2P"}, + {"i2pd webconsole", "Console web i2pd"}, + {"Main page", "Page principale"}, + {"Router commands", "Commandes du routeur"}, + {"Local Destinations", "Destinations locales"}, + {"LeaseSets", "Jeu de baux"}, + {"Tunnels", "Tunnels"}, + {"Transit Tunnels", "Tunnels transitoires"}, + {"Transports", "Transports"}, + {"I2P tunnels", "Tunnels I2P"}, + {"SAM sessions", "Sessions SAM"}, + {"ERROR", "ERREUR"}, + {"OK", "OK"}, + {"Testing", "Test en cours"}, + {"Firewalled", "Derrière un pare-feu"}, + {"Unknown", "Inconnu"}, + {"Proxy", "Proxy"}, + {"Mesh", "Maillé"}, + {"Clock skew", "Décalage de l'horloge"}, + {"Offline", "Hors ligne"}, + {"Symmetric NAT", "NAT symétrique"}, + {"Full cone NAT", "NAT à cône complet"}, + {"No Descriptors", "Aucuns Descripteurs"}, + {"Uptime", "Temps de fonctionnement"}, + {"Network status", "État du réseau"}, + {"Network status v6", "État du réseau v6"}, + {"Stopping in", "Arrêt dans"}, + {"Family", "Famille"}, + {"Tunnel creation success rate", "Taux de création de tunnel réussie"}, + {"Total tunnel creation success rate", "Taux total de création de tunnel réussie"}, + {"Received", "Reçu"}, + {"%.2f KiB/s", "%.2f Kio/s"}, + {"Sent", "Envoyé"}, + {"Transit", "Transité"}, + {"Data path", "Emplacement des données"}, + {"Hidden content. Press on text to see.", "Contenu caché. Cliquez sur le texte pour afficher."}, + {"Router Ident", "Identifiant du routeur"}, + {"Router Family", "Famille du routeur"}, + {"Router Caps", "Limiteurs du routeur"}, + {"Version", "Version"}, + {"Our external address", "Notre adresse externe"}, + {"supported", "supporté"}, + {"Routers", "Routeurs"}, + {"Floodfills", "Remplisseurs"}, + {"Client Tunnels", "Tunnels clients"}, + {"Services", "Services"}, + {"Enabled", "Activé"}, + {"Disabled", "Désactivé"}, + {"Encrypted B33 address", "Adresse B33 chiffrée"}, + {"Address registration line", "Ligne d'inscription de l'adresse"}, + {"Domain", "Domaine"}, + {"Generate", "Générer"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Note : La chaîne résultante peut seulement être utilisée pour enregistrer les domaines 2LD (exemple.i2p). Pour enregistrer des sous-domaines, veuillez utiliser i2pd-tools."}, + {"Address", "Adresse"}, + {"Type", "Type"}, + {"EncType", "EncType"}, + {"Expire LeaseSet", "Expirer le jeu de baux"}, + {"Inbound tunnels", "Tunnels entrants"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Tunnels sortants"}, + {"Tags", "Balises"}, + {"Incoming", "Entrant"}, + {"Outgoing", "Sortant"}, + {"Destination", "Destination"}, + {"Amount", "Quantité"}, + {"Incoming Tags", "Balises entrantes"}, + {"Tags sessions", "Sessions des balises"}, + {"Status", "Statut"}, + {"Local Destination", "Destination locale"}, + {"Streams", "Flux"}, + {"Close stream", "Fermer le flux"}, + {"Such destination is not found", "Cette destination est introuvable"}, + {"I2CP session not found", "Session I2CP introuvable"}, + {"I2CP is not enabled", "I2CP est désactivé"}, + {"Invalid", "Invalide"}, + {"Store type", "Type de stockage"}, + {"Expires", "Expire"}, + {"Non Expired Leases", "Baux non expirés"}, + {"Gateway", "Passerelle"}, + {"TunnelID", "ID du tunnel"}, + {"EndDate", "Date de fin"}, + {"floodfill mode is disabled", "le mode de remplissage est désactivé"}, + {"Queue size", "Longueur de la file"}, + {"Run peer test", "Lancer test des pairs"}, + {"Reload tunnels configuration", "Recharger la configuration des tunnels"}, + {"Decline transit tunnels", "Refuser les tunnels transitoires"}, + {"Accept transit tunnels", "Accepter les tunnels transitoires"}, + {"Cancel graceful shutdown", "Annuler l'arrêt gracieux"}, + {"Start graceful shutdown", "Démarrer l'arrêt gracieux"}, + {"Force shutdown", "Forcer l'arrêt"}, + {"Reload external CSS styles", "Rafraîchir les styles CSS externes"}, + {"Note: any action done here are not persistent and not changes your config files.", "Note : Toute action effectuée ici n'est pas permanente et ne modifie pas vos fichiers de configuration."}, + {"Logging level", "Niveau de journalisation"}, + {"Transit tunnels limit", "Limite sur les tunnels transitoires"}, + {"Change", "Changer"}, + {"Change language", "Changer la langue"}, + {"no transit tunnels currently built", "aucun tunnel transitoire présentement établi"}, + {"SAM disabled", "SAM désactivé"}, + {"no sessions currently running", "aucune session présentement en cours"}, + {"SAM session not found", "session SAM introuvable"}, + {"SAM Session", "Session SAM"}, + {"Server Tunnels", "Tunnels serveurs"}, + {"Client Forwards", "Transmission du client"}, + {"Server Forwards", "Transmission du serveur"}, + {"Unknown page", "Page inconnue"}, + {"Invalid token", "Jeton invalide"}, + {"SUCCESS", "SUCCÈS"}, + {"Stream closed", "Flux fermé"}, + {"Stream not found or already was closed", "Flux introuvable ou déjà fermé"}, + {"Destination not found", "Destination introuvable"}, + {"StreamID can't be null", "StreamID ne peut pas être vide"}, + {"Return to destination page", "Retourner à la page de destination"}, + {"You will be redirected in %d seconds", "Vous serez redirigé dans %d secondes"}, + {"LeaseSet expiration time updated", "Temps d'expiration du jeu de baux mis à jour"}, + {"LeaseSet is not found or already expired", "Le jeu de baux est introuvable ou a déjà expiré"}, + {"Transit tunnels count must not exceed %d", "Le nombre de tunnels de transit ne doit pas excéder %d"}, + {"Back to commands list", "Retour à la liste des commandes"}, + {"Register at reg.i2p", "Inscription à reg.i2p"}, + {"Description", "Description"}, + {"A bit information about service on domain", "Un peu d'information à propos des services disponibles dans le domaine"}, + {"Submit", "Soumettre"}, + {"Domain can't end with .b32.i2p", "Le domaine ne peut pas terminer par .b32.i2p"}, + {"Domain must end with .i2p", "Le domaine doit terminer par .i2p"}, + {"Unknown command", "Commande inconnue"}, + {"Command accepted", "Commande acceptée"}, + {"Proxy error", "Erreur de proxy"}, + {"Proxy info", "Information sur le proxy"}, + {"Proxy error: Host not found", "Erreur de proxy : Hôte introuvable"}, + {"Remote host not found in router's addressbook", "Hôte distant introuvable dans le carnet d'adresse du routeur"}, + {"You may try to find this host on jump services below", "Vous pouvez essayer de trouver cet hôte sur des services de redirection ci-dessous"}, + {"Invalid request", "Requête invalide"}, + {"Proxy unable to parse your request", "Proxy incapable de comprendre votre requête"}, + {"Addresshelper is not supported", "Assistant d'adresse non supporté"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "L'hôte %s est déjà dans le carnet d'adresses du routeur. Attention : la source de cette URL peut être nuisible ! Cliquez ici pour mettre à jour l'enregistrement : Continuer."}, + {"Addresshelper forced update rejected", "Mise à jour forcée des assistants d'adresses rejetée"}, + {"To add host %s in router's addressbook, click here: Continue.", "Pour ajouter l'hôte %s au carnet d'adresses du routeur, cliquez ici : Continuer."}, + {"Addresshelper request", "Demande à l'assistant d'adresse"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "L'hôte %s a été ajouté au carnet d'adresses du routeur depuis l'assistant. Cliquez ici pour continuer : Continuer."}, + {"Addresshelper adding", "Ajout de l'assistant d'adresse"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "L'hôte %s est déjà dans le carnet d'adresses du routeur. Cliquez ici pour mettre à jour le dossier : Continuer."}, + {"Addresshelper update", "Mise à jour de l'assistant d'adresse"}, + {"Invalid request URI", "URI de la requête invalide"}, + {"Can't detect destination host from request", "Impossible de détecter l'hôte de destination à partir de la requête"}, + {"Outproxy failure", "Échec de proxy de sortie"}, + {"Bad outproxy settings", "Mauvaise configuration du proxy de sortie"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Hôte %s pas dans le réseau I2P, mais le proxy de sortie n'est pas activé"}, + {"Unknown outproxy URL", "URL du proxy de sortie inconnu"}, + {"Cannot resolve upstream proxy", "Impossible de résoudre l'adresse du proxy en amont"}, + {"Hostname is too long", "Nom d'hôte trop long"}, + {"Cannot connect to upstream SOCKS proxy", "Impossible de se connecter au proxy SOCKS en amont"}, + {"Cannot negotiate with SOCKS proxy", "Impossible de négocier avec le proxy SOCKS"}, + {"CONNECT error", "Erreur de connexion"}, + {"Failed to connect", "Échec de connexion"}, + {"SOCKS proxy error", "Erreur de proxy SOCKS"}, + {"Failed to send request to upstream", "Erreur lors de l'envoie de la requête en amont"}, + {"No reply from SOCKS proxy", "Pas de réponse du proxy SOCKS"}, + {"Cannot connect", "Impossible de connecter"}, + {"HTTP out proxy not implemented", "Proxy de sortie HTTP non implémenté"}, + {"Cannot connect to upstream HTTP proxy", "Impossible de se connecter au proxy HTTP en amont"}, + {"Host is down", "Hôte hors service"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Impossible d'établir une connexion avec l'hôte, il est peut-être hors service. Veuillez réessayer plus tard."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d jour", "%d jours"}}, + {"%d hours", {"%d heure", "%d heures"}}, + {"%d minutes", {"%d minute", "%d minutes"}}, + {"%d seconds", {"%d seconde", "%d secondes"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/German.cpp b/i18n/German.cpp new file mode 100644 index 00000000..90ce82f4 --- /dev/null +++ b/i18n/German.cpp @@ -0,0 +1,218 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// German localization file + +namespace i2p +{ +namespace i18n +{ +namespace german // language namespace +{ + // language name in lowercase + static std::string language = "german"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "In Bau"}, + {"failed", "fehlgeschlagen"}, + {"expiring", "läuft ab"}, + {"established", "hergestellt"}, + {"unknown", "Unbekannt"}, + {"exploratory", "erforschend"}, + {"Purple I2P Webconsole", "Purple I2P-Webkonsole"}, + {"i2pd webconsole", "i2pd-Webkonsole"}, + {"Main page", "Startseite"}, + {"Router commands", "Routerbefehle"}, + {"Local Destinations", "Lokale Ziele"}, + {"LeaseSets", "LeaseSets"}, + {"Tunnels", "Tunnel"}, + {"Transit Tunnels", "Transittunnel"}, + {"Transports", "Transporte"}, + {"I2P tunnels", "I2P Tunnel"}, + {"SAM sessions", "SAM Sitzungen"}, + {"ERROR", "FEHLER"}, + {"OK", "OK"}, + {"Testing", "Testen"}, + {"Firewalled", "Hinter einer Firewall"}, + {"Unknown", "Unbekannt"}, + {"Proxy", "Proxy"}, + {"Mesh", "Mesh"}, + {"Clock skew", "Zeitabweichung"}, + {"Offline", "Offline"}, + {"Symmetric NAT", "Symmetrisches NAT"}, + {"No Descriptors", "Keine Beschreibungen"}, + {"Uptime", "Laufzeit"}, + {"Network status", "Netzwerkstatus"}, + {"Network status v6", "Netzwerkstatus v6"}, + {"Stopping in", "Stoppt in"}, + {"Family", "Familie"}, + {"Tunnel creation success rate", "Erfolgsrate der Tunnelerstellung"}, + {"Received", "Eingegangen"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Gesendet"}, + {"Transit", "Transit"}, + {"Data path", "Datenpfad"}, + {"Hidden content. Press on text to see.", "Versteckter Inhalt. Klicke hier, um ihn zu sehen."}, + {"Router Ident", "Routeridentität"}, + {"Router Family", "Routerfamilie"}, + {"Router Caps", "Routerattribute"}, + {"Version", "Version"}, + {"Our external address", "Unsere externe Adresse"}, + {"supported", "unterstützt"}, + {"Routers", "Router"}, + {"Floodfills", "Floodfills"}, + {"Client Tunnels", "Clienttunnel"}, + {"Services", "Services"}, + {"Enabled", "Aktiviert"}, + {"Disabled", "Deaktiviert"}, + {"Encrypted B33 address", "Verschlüsselte B33-Adresse"}, + {"Address registration line", "Adressregistrierungszeile"}, + {"Domain", "Domain"}, + {"Generate", "Generieren"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Hinweis: Der resultierende String kann nur für die Registrierung einer 2LD-Domain (beispiel.i2p) benutzt werden. Für die Registrierung von Subdomains kann i2pd-tools verwendet werden."}, + {"Address", "Adresse"}, + {"Type", "Typ"}, + {"EncType", "Verschlüsselungstyp"}, + {"Inbound tunnels", "Eingehende Tunnel"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Ausgehende Tunnel"}, + {"Tags", "Tags"}, + {"Incoming", "Eingehend"}, + {"Outgoing", "Ausgehend"}, + {"Destination", "Ziel"}, + {"Amount", "Anzahl"}, + {"Incoming Tags", "Eingehende Tags"}, + {"Tags sessions", "Tags-Sitzungen"}, + {"Status", "Status"}, + {"Local Destination", "Lokales Ziel"}, + {"Streams", "Streams"}, + {"Close stream", "Stream schließen"}, + {"I2CP session not found", "I2CP-Sitzung nicht gefunden"}, + {"I2CP is not enabled", "I2CP ist nicht aktiviert"}, + {"Invalid", "Ungültig"}, + {"Store type", "Speichertyp"}, + {"Expires", "Ablaufdatum"}, + {"Non Expired Leases", "Nicht abgelaufene Leases"}, + {"Gateway", "Gateway"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "Enddatum"}, + {"floodfill mode is disabled", "Floodfill Modus ist deaktiviert"}, + {"Queue size", "Größe der Warteschlange"}, + {"Run peer test", "Peer-Test durchführen"}, + {"Reload tunnels configuration", "Tunnel Konfiguration neu laden"}, + {"Decline transit tunnels", "Transittunnel ablehnen"}, + {"Accept transit tunnels", "Transittunnel akzeptieren"}, + {"Cancel graceful shutdown", "Beende das kontrollierte Herunterfahren"}, + {"Start graceful shutdown", "Starte das kontrollierte Herunterfahren"}, + {"Force shutdown", "Herunterfahren erzwingen"}, + {"Reload external CSS styles", "Lade externe CSS-Stile neu"}, + {"Note: any action done here are not persistent and not changes your config files.", "Hinweis: Alle hier durchgeführten Aktionen sind nicht dauerhaft und ändern die Konfigurationsdateien nicht."}, + {"Logging level", "Protokollierungslevel"}, + {"Transit tunnels limit", "Limit für Transittunnel"}, + {"Change", "Ändern"}, + {"Change language", "Sprache ändern"}, + {"no transit tunnels currently built", "derzeit keine Transittunnel aufgebaut"}, + {"SAM disabled", "SAM deaktiviert"}, + {"no sessions currently running", "Derzeit keine laufenden Sitzungen"}, + {"SAM session not found", "SAM-Sitzung nicht gefunden"}, + {"SAM Session", "SAM-Sitzung"}, + {"Server Tunnels", "Servertunnel"}, + {"Client Forwards", "Client-Weiterleitungen"}, + {"Server Forwards", "Server-Weiterleitungen"}, + {"Unknown page", "Unbekannte Seite"}, + {"Invalid token", "Ungültiger Token"}, + {"SUCCESS", "ERFOLGREICH"}, + {"Stream closed", "Stream geschlossen"}, + {"Stream not found or already was closed", "Stream nicht gefunden oder bereits geschlossen"}, + {"Destination not found", "Ziel nicht gefunden"}, + {"StreamID can't be null", "StreamID kann nicht null sein"}, + {"Return to destination page", "Zurück zur Ziel-Seite"}, + {"You will be redirected in %d seconds", "Du wirst umgeleitet in %d Sekunden"}, + {"Transit tunnels count must not exceed %d", "Die Anzahl der Transittunnel darf nicht über %d gehen"}, + {"Back to commands list", "Zurück zur Befehlsliste"}, + {"Register at reg.i2p", "Auf reg.i2p registrieren"}, + {"Description", "Beschreibung"}, + {"A bit information about service on domain", "Ein paar Informationen über den Service auf der Domain"}, + {"Submit", "Absenden"}, + {"Domain can't end with .b32.i2p", "Domain kann nicht auf .b32.i2p enden"}, + {"Domain must end with .i2p", "Domain muss auf .i2p enden"}, + {"Such destination is not found", "Ein solches Ziel konnte nicht gefunden werden"}, + {"Unknown command", "Unbekannter Befehl"}, + {"Command accepted", "Befehl akzeptiert"}, + {"Proxy error", "Proxy-Fehler"}, + {"Proxy info", "Proxy-Info"}, + {"Proxy error: Host not found", "Proxy-Fehler: Host nicht gefunden"}, + {"Remote host not found in router's addressbook", "Remote-Host nicht im Router-Adressbuch gefunden"}, + {"You may try to find this host on jump services below", "Vielleicht kannst du diesen Host auf einem der nachfolgenden Jump-Services finden"}, + {"Invalid request", "Ungültige Anfrage"}, + {"Proxy unable to parse your request", "Proxy konnte die Anfrage nicht verarbeiten"}, + {"Addresshelper is not supported", "Adresshelfer wird nicht unterstützt"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Host %s ist bereits im Adressbuch des Routers. Vorsicht: Die Quelle dieser URL kann schädlich sein! Klicken Sie hier, um den Datensatz zu aktualisieren: Weiter."}, + {"Addresshelper forced update rejected", "Adresshelfer gezwungene Aktualisierung abgelehnt"}, + {"To add host %s in router's addressbook, click here: Continue.", "Um den Host %s im Adressbuch des Routers hinzuzufügen, klicken Sie hier: Weiter."}, + {"Addresshelper request", "Adresshelfer gefunden"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Host %s wurde vom Helfer zum Adressbuch des Routers hinzugefügt. Klicken Sie hier, um fortzufahren: Weiter."}, + {"Addresshelper adding", "Adresshelfer hinzufügen"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Host %s ist bereits im Adressbuch des Routers. Klicken Sie hier, um den Eintrag zu aktualisieren: Weiter."}, + {"Addresshelper update", "Adresshelfer aktualisieren"}, + {"Invalid request URI", "Ungültige Anfrage-URI"}, + {"Can't detect destination host from request", "Kann den Ziel-Host von der Anfrage nicht erkennen"}, + {"Outproxy failure", "Outproxy-Fehler"}, + {"Bad outproxy settings", "Ungültige Outproxy-Einstellungen"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Host %s außerhalb des I2P-Netzwerks, aber Outproxy ist nicht aktiviert"}, + {"Unknown outproxy URL", "Unbekannte Outproxy-URL"}, + {"Cannot resolve upstream proxy", "Kann den Upstream-Proxy nicht auflösen"}, + {"Hostname is too long", "Hostname zu lang"}, + {"Cannot connect to upstream SOCKS proxy", "Kann keine Verbindung zum Upstream-SOCKS-Proxy herstellen"}, + {"Cannot negotiate with SOCKS proxy", "Kann nicht mit SOCKS-Proxy verhandeln"}, + {"CONNECT error", "CONNECT-Fehler"}, + {"Failed to connect", "Verbindung konnte nicht hergestellt werden"}, + {"SOCKS proxy error", "SOCKS-Proxy-Fehler"}, + {"Failed to send request to upstream", "Anfrage an den Upstream zu senden ist gescheitert"}, + {"No reply from SOCKS proxy", "Keine Antwort vom SOCKS-Proxy"}, + {"Cannot connect", "Kann nicht verbinden"}, + {"HTTP out proxy not implemented", "HTTP-Outproxy nicht implementiert"}, + {"Cannot connect to upstream HTTP proxy", "Kann nicht zu Upstream-HTTP-Proxy verbinden"}, + {"Host is down", "Host ist offline"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Konnte keine Verbindung zum angefragten Host aufbauen, vielleicht ist er offline. Versuche es später noch mal."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d Tag", "%d Tage"}}, + {"%d hours", {"%d Stunde", "%d Stunden"}}, + {"%d minutes", {"%d Minute", "%d Minuten"}}, + {"%d seconds", {"%d Sekunde", "%d Sekunden"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/I18N.cpp b/i18n/I18N.cpp new file mode 100644 index 00000000..48a02357 --- /dev/null +++ b/i18n/I18N.cpp @@ -0,0 +1,43 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include "ClientContext.h" +#include "I18N_langs.h" +#include "I18N.h" + +namespace i2p +{ +namespace i18n +{ + void SetLanguage(const std::string &lang) + { + const auto it = i2p::i18n::languages.find(lang); + if (it == i2p::i18n::languages.end()) // fallback + { + i2p::client::context.SetLanguage (i2p::i18n::english::GetLocale()); + setlocale(LC_NUMERIC, "english"); + } + else + { + i2p::client::context.SetLanguage (it->second.LocaleFunc()); + setlocale(LC_NUMERIC, lang.c_str()); // set decimal point based on language + } + } + + std::string_view translate (std::string_view arg) + { + return i2p::client::context.GetLanguage ()->GetString (arg); + } + + std::string translate (const std::string& arg, const std::string& arg2, const int n) + { + return i2p::client::context.GetLanguage ()->GetPlural (arg, arg2, n); + } +} // i18n +} // i2p diff --git a/i18n/I18N.h b/i18n/I18N.h new file mode 100644 index 00000000..8ed77a6b --- /dev/null +++ b/i18n/I18N.h @@ -0,0 +1,137 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef __I18N_H__ +#define __I18N_H__ + +#include +#include +#include +#include +#include + +namespace i2p +{ +namespace i18n +{ + typedef std::map LocaleStrings; + class Locale + { + public: + Locale ( + const std::string& language, + const LocaleStrings& strings, + const std::map>& plurals, + std::function formula + ): m_Language (language), m_Strings (strings), m_Plurals (plurals), m_Formula (formula) { }; + + // Get activated language name for webconsole + std::string GetLanguage() const + { + return m_Language; + } + + std::string_view GetString (std::string_view arg) const + { + const auto it = m_Strings.find(arg); + if (it == m_Strings.end()) + { + return arg; + } + else + { + return it->second; + } + } + + std::string GetPlural (const std::string& arg, const std::string& arg2, int n) const + { + const auto it = m_Plurals.find(arg2); + if (it == m_Plurals.end()) // not found, fallback to english + { + return n == 1 ? arg : arg2; + } + else + { + int form = m_Formula(n); + return it->second[form]; + } + } + + private: + const std::string m_Language; + const LocaleStrings m_Strings; + const std::map> m_Plurals; + std::function m_Formula; + }; + + void SetLanguage(const std::string &lang); + std::string_view translate (std::string_view arg); + std::string translate (const std::string& arg, const std::string& arg2, int n); +} // i18n +} // i2p + +/** + * @brief Get translation of string + * @param arg String with message + */ +template +std::string_view tr (TValue&& arg) +{ + return i2p::i18n::translate(std::forward(arg)); +} + +/** + * @brief Get translation of string and format it + * @param arg String with message + * @param args Array of arguments for string formatting +*/ +template +std::string tr (TValue&& arg, TArgs&&... args) +{ + std::string tr_str = std::string (i2p::i18n::translate(std::forward(arg))); // TODO: + + size_t size = std::snprintf(NULL, 0, tr_str.c_str(), std::forward(args)...); + std::string str(size, 0); + std::snprintf(&str.front(), size + 1, tr_str.c_str(), std::forward(args)...); + + return str; +} + +/** + * @brief Get translation of string with plural forms + * @param arg String with message in singular form + * @param arg2 String with message in plural form + * @param n Integer, used for selection of form + */ +template +std::string ntr (TValue&& arg, TValue2&& arg2, int n) +{ + return i2p::i18n::translate(std::forward(arg), std::forward(arg2), std::forward(n)); +} + +/** + * @brief Get translation of string with plural forms and format it + * @param arg String with message in singular form + * @param arg2 String with message in plural form + * @param n Integer, used for selection of form + * @param args Array of arguments for string formatting + */ +template +std::string ntr (TValue&& arg, TValue2&& arg2, int n, TArgs&&... args) +{ + std::string tr_str = i2p::i18n::translate(std::forward(arg), std::forward(arg2), std::forward(n)); + + size_t size = std::snprintf(NULL, 0, tr_str.c_str(), std::forward(args)...); + std::string str(size, 0); + std::snprintf(&str.front(), size + 1, tr_str.c_str(), std::forward(args)...); + + return str; +} + +#endif // __I18N_H__ diff --git a/i18n/I18N_langs.h b/i18n/I18N_langs.h new file mode 100644 index 00000000..6426e2ce --- /dev/null +++ b/i18n/I18N_langs.h @@ -0,0 +1,71 @@ +/* +* Copyright (c) 2021-2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef __I18N_LANGS_H__ +#define __I18N_LANGS_H__ + +#include "I18N.h" + +namespace i2p +{ +namespace i18n +{ + struct langData + { + std::string LocaleName; // localized name + std::string ShortCode; // short language code, like "en" + std::function (void)> LocaleFunc; + }; + + // Add localization here with language name as namespace + namespace afrikaans { std::shared_ptr GetLocale (); } + namespace armenian { std::shared_ptr GetLocale (); } + namespace chinese { std::shared_ptr GetLocale (); } + namespace czech { std::shared_ptr GetLocale (); } + namespace english { std::shared_ptr GetLocale (); } + namespace french { std::shared_ptr GetLocale (); } + namespace german { std::shared_ptr GetLocale (); } + namespace italian { std::shared_ptr GetLocale (); } + namespace polish { std::shared_ptr GetLocale (); } + namespace portuguese { std::shared_ptr GetLocale (); } + namespace russian { std::shared_ptr GetLocale (); } + namespace spanish { std::shared_ptr GetLocale (); } + namespace swedish { std::shared_ptr GetLocale (); } + namespace turkish { std::shared_ptr GetLocale (); } + namespace turkmen { std::shared_ptr GetLocale (); } + namespace ukrainian { std::shared_ptr GetLocale (); } + namespace uzbek { std::shared_ptr GetLocale (); } + + /** + * That map contains international language name lower-case, name in it's language and it's code + */ + static std::map languages + { + { "afrikaans", {"Afrikaans", "af", i2p::i18n::afrikaans::GetLocale} }, + { "armenian", {"hայերէն", "hy", i2p::i18n::armenian::GetLocale} }, + { "chinese", {"简体字", "zh-CN", i2p::i18n::chinese::GetLocale} }, + { "czech", {"čeština", "cs", i2p::i18n::czech::GetLocale} }, + { "english", {"English", "en", i2p::i18n::english::GetLocale} }, + { "french", {"Français", "fr", i2p::i18n::french::GetLocale} }, + { "german", {"Deutsch", "de", i2p::i18n::german::GetLocale} }, + { "italian", {"Italiano", "it", i2p::i18n::italian::GetLocale} }, + { "polish", {"Polski", "pl", i2p::i18n::polish::GetLocale} }, + { "portuguese", {"Português", "pt", i2p::i18n::portuguese::GetLocale} }, + { "russian", {"Русский язык", "ru", i2p::i18n::russian::GetLocale} }, + { "spanish", {"Español", "es", i2p::i18n::spanish::GetLocale} }, + { "swedish", {"Svenska", "sv", i2p::i18n::swedish::GetLocale} }, + { "turkish", {"Türk dili", "tr", i2p::i18n::turkish::GetLocale} }, + { "turkmen", {"Türkmen dili", "tk", i2p::i18n::turkmen::GetLocale} }, + { "ukrainian", {"Украї́нська мо́ва", "uk", i2p::i18n::ukrainian::GetLocale} }, + { "uzbek", {"Oʻzbek", "uz", i2p::i18n::uzbek::GetLocale} }, + }; + +} // i18n +} // i2p + +#endif // __I18N_LANGS_H__ diff --git a/i18n/Italian.cpp b/i18n/Italian.cpp new file mode 100644 index 00000000..0ae26f21 --- /dev/null +++ b/i18n/Italian.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Italian localization file + +namespace i2p +{ +namespace i18n +{ +namespace italian // language namespace +{ + // language name in lowercase + static std::string language = "italian"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "in costruzione"}, + {"failed", "fallito"}, + {"expiring", "in scadenza"}, + {"established", "stabilita"}, + {"unknown", "sconosciuto"}, + {"exploratory", "esplorativo"}, + {"Purple I2P Webconsole", "Terminale web Purple I2P"}, + {"i2pd webconsole", "Terminal web i2pd"}, + {"Main page", "Pagina principale"}, + {"Router commands", "Comandi router"}, + {"Local Destinations", "Destinazioni locali"}, + {"LeaseSets", "LeaseSets"}, + {"Tunnels", "Tunnel"}, + {"Transit Tunnels", "Tunnel di transito"}, + {"Transports", "Trasporti"}, + {"I2P tunnels", "Tunnel I2P"}, + {"SAM sessions", "Sessioni SAM"}, + {"ERROR", "ERRORE"}, + {"OK", "OK"}, + {"Testing", "Testando"}, + {"Firewalled", "Protetto da firewall"}, + {"Unknown", "Sconosciuto"}, + {"Proxy", "Proxy"}, + {"Mesh", "Mesh"}, + {"Clock skew", "Orologio disallineato"}, + {"Offline", "Disconnesso"}, + {"Symmetric NAT", "NAT simmetrico"}, + {"Full cone NAT", "Cono completo NAT"}, + {"No Descriptors", "Nessun descrittore"}, + {"Uptime", "In funzione da"}, + {"Network status", "Stato della rete"}, + {"Network status v6", "Stato della rete v6"}, + {"Stopping in", "Arresto in"}, + {"Family", "Famiglia"}, + {"Tunnel creation success rate", "Percentuale di tunnel creati con successo"}, + {"Total tunnel creation success rate", "Percentuale di successo totale nella creazione del tunnel"}, + {"Received", "Ricevuti"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Inviati"}, + {"Transit", "Transitati"}, + {"Data path", "Percorso dati"}, + {"Hidden content. Press on text to see.", "Contenuto nascosto. Premi sul testo per vedere."}, + {"Router Ident", "Identificativo del router"}, + {"Router Family", "Famiglia del router"}, + {"Router Caps", "Limiti del router"}, + {"Version", "Versione"}, + {"Our external address", "Il nostro indirizzo esterno"}, + {"supported", "supportato"}, + {"Routers", "Router"}, + {"Floodfills", "Floodfill"}, + {"Client Tunnels", "Tunnel client"}, + {"Services", "Servizi"}, + {"Enabled", "Abilitato"}, + {"Disabled", "Disabilitato"}, + {"Encrypted B33 address", "Indirizzo criptato B33"}, + {"Address registration line", "Linea di registrazione indirizzo"}, + {"Domain", "Dominio"}, + {"Generate", "Genera"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Nota: la stringa risultante può essere utilizzata solo per registrare domini 2LD (example.i2p). Per registrare i sottodomini, si prega di utilizzare i2pd-tools."}, + {"Address", "Indirizzo"}, + {"Type", "Tipologia"}, + {"EncType", "Tipo di crittografia"}, + {"Expire LeaseSet", "Scadenza LeaseSet"}, + {"Inbound tunnels", "Tunnel in entrata"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Tunnel in uscita"}, + {"Tags", "Tag"}, + {"Incoming", "In entrata"}, + {"Outgoing", "In uscita"}, + {"Destination", "Destinazione"}, + {"Amount", "Quantità"}, + {"Incoming Tags", "Tag in entrata"}, + {"Tags sessions", "Sessioni dei tag"}, + {"Status", "Stato"}, + {"Local Destination", "Destinazione locale"}, + {"Streams", "Flussi"}, + {"Close stream", "Interrompi il flusso"}, + {"Such destination is not found", "Questa destinazione non è stata trovata"}, + {"I2CP session not found", "Sessione I2CP non trovata"}, + {"I2CP is not enabled", "I2CP non è abilitato"}, + {"Invalid", "Invalido"}, + {"Store type", "Tipologia di archivio"}, + {"Expires", "Scade"}, + {"Non Expired Leases", "Lease non scaduti"}, + {"Gateway", "Gateway"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "Data di fine"}, + {"floodfill mode is disabled", "la modalità floodfill è disabilitata"}, + {"Queue size", "Dimensione della coda"}, + {"Run peer test", "Esegui il test dei peer"}, + {"Reload tunnels configuration", "Ricarica la configurazione dei tunnel"}, + {"Decline transit tunnels", "Rifiuta tunnel di transito"}, + {"Accept transit tunnels", "Accetta tunnel di transito"}, + {"Cancel graceful shutdown", "Annulla l'interruzione controllata"}, + {"Start graceful shutdown", "Avvia l'interruzione controllata"}, + {"Force shutdown", "Forza l'arresto"}, + {"Reload external CSS styles", "Ricarica gli stili CSS esterni"}, + {"Note: any action done here are not persistent and not changes your config files.", "Nota: qualsiasi azione effettuata qui non è persistente e non modifica i file di configurazione."}, + {"Logging level", "Livello di log"}, + {"Transit tunnels limit", "Limite di tunnel di transito"}, + {"Change", "Modifica"}, + {"Change language", "Modifica linguaggio"}, + {"no transit tunnels currently built", "Attualmente non ci sono tunnel di transito instaurati"}, + {"SAM disabled", "SAM disabilitato"}, + {"no sessions currently running", "Attualmente non ci sono sessioni attive"}, + {"SAM session not found", "Sessione SAM non trovata"}, + {"SAM Session", "Sessione SAM"}, + {"Server Tunnels", "Tunnel server"}, + {"Client Forwards", "Client di inoltro"}, + {"Server Forwards", "Server di inoltro"}, + {"Unknown page", "Pagina sconosciuta"}, + {"Invalid token", "Token non valido"}, + {"SUCCESS", "SUCCESSO"}, + {"Stream closed", "Flusso terminato"}, + {"Stream not found or already was closed", "Il flusso non è stato trovato oppure è già stato terminato"}, + {"Destination not found", "Destinazione non trovata"}, + {"StreamID can't be null", "Lo StreamID non può essere null"}, + {"Return to destination page", "Ritorna alla pagina di destinazione"}, + {"You will be redirected in %d seconds", "Sarai reindirizzato tra %d secondi"}, + {"LeaseSet expiration time updated", "Tempo di scadenza LeaseSet aggiornato"}, + {"LeaseSet is not found or already expired", "LeaseSet non trovato o già scaduto"}, + {"Transit tunnels count must not exceed %d", "Il conteggio dei tunnel di transito non deve superare %d"}, + {"Back to commands list", "Ritorna alla lista dei comandi"}, + {"Register at reg.i2p", "Registra a reg.i2p"}, + {"Description", "Descrizione"}, + {"A bit information about service on domain", "Alcune informazioni riguardo il servizio sul dominio"}, + {"Submit", "Invia"}, + {"Domain can't end with .b32.i2p", "I domini non possono terminare con .b32.i2p"}, + {"Domain must end with .i2p", "I domini devono terminare con .i2p"}, + {"Unknown command", "Comando sconosciuto"}, + {"Command accepted", "Comando accettato"}, + {"Proxy error", "Errore del proxy"}, + {"Proxy info", "Informazioni del proxy"}, + {"Proxy error: Host not found", "Errore del proxy: Host non trovato"}, + {"Remote host not found in router's addressbook", "L'host remoto non è stato trovato nella rubrica del router"}, + {"You may try to find this host on jump services below", "Si può provare a trovare questo host sui servizi di salto qui sotto"}, + {"Invalid request", "Richiesta non valida"}, + {"Proxy unable to parse your request", "Il proxy non è in grado di elaborare la tua richiesta"}, + {"Addresshelper is not supported", "Addresshelper non è supportato"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "L'host %s è già nella rubrica del router. Attenzione: la fonte di questo URL potrebbe essere dannosa! Fai clic qui per aggiornare il record: Continua."}, + {"Addresshelper forced update rejected", "Aggiornamento forzato dell'helper degli indirizzi rifiutato"}, + {"To add host %s in router's addressbook, click here: Continue.", "Per aggiungere host %s nella rubrica del router, clicca qui: Continua."}, + {"Addresshelper request", "Richiesta di indirizzo helper"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "L'host %s viene aggiunto alla rubrica del router dall'helper. Fai clic qui per procedere: Continua."}, + {"Addresshelper adding", "Aggiunta di Addresshelper"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "L'host %s è già nella rubrica del router. Clicca qui per aggiornare il record: Continua."}, + {"Addresshelper update", "Aggiornamento dell'helper degli indirizzi"}, + {"Invalid request URI", "URI della richiesta non valido"}, + {"Can't detect destination host from request", "Impossibile determinare l'host di destinazione dalla richiesta"}, + {"Outproxy failure", "Fallimento del proxy di uscita"}, + {"Bad outproxy settings", "Impostazioni errate del proxy di uscita"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Host %s non all'interno della rete I2P, ma il proxy di uscita non è abilitato"}, + {"Unknown outproxy URL", "URL del proxy di uscita sconosciuto"}, + {"Cannot resolve upstream proxy", "Impossibile identificare il flusso a monte del proxy"}, + {"Hostname is too long", "Il nome dell'host è troppo lungo"}, + {"Cannot connect to upstream SOCKS proxy", "Impossibile connettersi al flusso a monte del proxy SOCKS"}, + {"Cannot negotiate with SOCKS proxy", "Impossibile negoziare con il proxy SOCKS"}, + {"CONNECT error", "Errore di connessione"}, + {"Failed to connect", "Connessione fallita"}, + {"SOCKS proxy error", "Errore del proxy SOCKS"}, + {"Failed to send request to upstream", "Invio della richiesta a monte non riuscito"}, + {"No reply from SOCKS proxy", "Nessuna risposta dal proxy SOCKS"}, + {"Cannot connect", "Impossibile connettersi"}, + {"HTTP out proxy not implemented", "Proxy HTTP di uscita non implementato"}, + {"Cannot connect to upstream HTTP proxy", "Impossibile connettersi al flusso a monte del proxy HTTP"}, + {"Host is down", "L'host è offline"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Impossibile creare la connessione all'host richiesto, probabilmente è offline. Riprova più tardi."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d giorno", "%d giorni"}}, + {"%d hours", {"%d ora", "%d ore"}}, + {"%d minutes", {"%d minuto", "%d minuti"}}, + {"%d seconds", {"%d secondo", "%d secondi"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Polish.cpp b/i18n/Polish.cpp new file mode 100644 index 00000000..0e8df096 --- /dev/null +++ b/i18n/Polish.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2023-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Polish localization file + +namespace i2p +{ +namespace i18n +{ +namespace polish // language namespace +{ + // language name in lowercase + static std::string language = "polish"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return (n == 1 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2); + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "Kompilowanie"}, + {"failed", "nieudane"}, + {"expiring", "wygasający"}, + {"established", "ustanowiony"}, + {"unknown", "nieznany"}, + {"exploratory", "eksploracyjny"}, + {"Purple I2P Webconsole", "Konsola webowa Purple I2P"}, + {"i2pd webconsole", "i2pd konsola webowa"}, + {"Main page", "Strona główna"}, + {"Router commands", "Komendy routera"}, + {"Local Destinations", "Lokalne miejsca docelowe"}, + {"LeaseSets", "ZestawyNajmu"}, + {"Tunnels", "Tunele"}, + {"Transit Tunnels", "Tunele Tranzytu"}, + {"Transports", "Transportery"}, + {"I2P tunnels", "Tunele I2P"}, + {"SAM sessions", "Sesje SAM"}, + {"ERROR", "BŁĄD"}, + {"OK", "Ok"}, + {"Testing", "Testowanie"}, + {"Firewalled", "Za zaporą sieciową"}, + {"Unknown", "Nieznany"}, + {"Proxy", "Proxy"}, + {"Mesh", "Sieć"}, + {"Clock skew", "Przesunięcie czasu"}, + {"Offline", "Offline"}, + {"Symmetric NAT", "Symetryczny NAT"}, + {"Full cone NAT", "Pełny stożek NAT"}, + {"No Descriptors", "Brak deskryptorów"}, + {"Uptime", "Czas pracy"}, + {"Network status", "Stan sieci"}, + {"Network status v6", "Stan sieci v6"}, + {"Stopping in", "Zatrzymywanie za"}, + {"Family", "Rodzina"}, + {"Tunnel creation success rate", "Wskaźnik sukcesu tworzenia tunelu"}, + {"Total tunnel creation success rate", "Całkowity wskaźnik sukcesu tworzenia tunelu"}, + {"Received", "Odebrano"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Wysłane"}, + {"Transit", "Tranzyt"}, + {"Data path", "Ścieżka do danych"}, + {"Hidden content. Press on text to see.", "Ukryta zawartość. Naciśnij tekst, aby zobaczyć."}, + {"Router Ident", "Identyfikator routera"}, + {"Router Family", "Rodzina routera"}, + {"Router Caps", "Możliwości routera"}, + {"Version", "Wersja"}, + {"Our external address", "Nasz zewnętrzny adres"}, + {"supported", "wspierane"}, + {"Routers", "Routery"}, + {"Floodfills", "Floodfille"}, + {"Client Tunnels", "Tunele Klienta"}, + {"Services", "Usługi"}, + {"Enabled", "Aktywny"}, + {"Disabled", "Wyłączony"}, + {"Encrypted B33 address", "Zaszyfrowany adres B33"}, + {"Address registration line", "Linia rejestracji adresu"}, + {"Domain", "Domena"}, + {"Generate", "Generuj"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Uwaga: wynik string może być używany tylko do rejestracji domen 2LD (przykład.i2p). Do rejestracji subdomen należy użyć narzędzi i2pd."}, + {"Address", "Adres"}, + {"Type", "Typ"}, + {"EncType", "TypEnkrypcji"}, + {"Expire LeaseSet", "Wygaśnij LeaseSet"}, + {"Inbound tunnels", "Tunele przychodzące"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Tunele wychodzące"}, + {"Tags", "Tagi"}, + {"Incoming", "Przychodzące"}, + {"Outgoing", "Wychodzące"}, + {"Destination", "Miejsce docelowe"}, + {"Amount", "Ilość"}, + {"Incoming Tags", "Przychodzące tagi"}, + {"Tags sessions", "Sesje tagów"}, + {"Status", "Status"}, + {"Local Destination", "Lokalne miejsce docelowe"}, + {"Streams", "Strumienie"}, + {"Close stream", "Zamknij strumień"}, + {"Such destination is not found", "Nie znaleziono takiego miejsca docelowego"}, + {"I2CP session not found", "Sesja I2CP nie została znaleziona"}, + {"I2CP is not enabled", "I2CP nie jest włączone"}, + {"Invalid", "Niepoprawny"}, + {"Store type", "Rodzaj przechowywania"}, + {"Expires", "Wygasa za"}, + {"Non Expired Leases", "Leasingi niewygasłe"}, + {"Gateway", "Brama"}, + {"TunnelID", "IDTunelu"}, + {"EndDate", "DataZakończenia"}, + {"floodfill mode is disabled", "tryb floodfill jest wyłączony"}, + {"Queue size", "Wielkość kolejki"}, + {"Run peer test", "Wykonaj test peer"}, + {"Reload tunnels configuration", "Załaduj ponownie konfigurację tuneli"}, + {"Decline transit tunnels", "Odrzuć tunele tranzytowe"}, + {"Accept transit tunnels", "Akceptuj tunele tranzytowe"}, + {"Cancel graceful shutdown", "Anuluj łagodne wyłączenie"}, + {"Start graceful shutdown", "Rozpocznij łagodne wyłączenie"}, + {"Force shutdown", "Wymuś wyłączenie"}, + {"Reload external CSS styles", "Odśwież zewnętrzne style CSS"}, + {"Note: any action done here are not persistent and not changes your config files.", "Uwaga: każda akcja wykonana tutaj nie jest trwała i nie zmienia Twoich plików konfiguracyjnych."}, + {"Logging level", "Poziom logowania"}, + {"Transit tunnels limit", "Limit tuneli tranzytowych"}, + {"Change", "Zmień"}, + {"Change language", "Zmień język"}, + {"no transit tunnels currently built", "brak obecnie zbudowanych tuneli tranzytowych"}, + {"SAM disabled", "SAM wyłączony"}, + {"no sessions currently running", "brak aktualnie uruchomionych sesji"}, + {"SAM session not found", "Sesja SAM nie została znaleziona"}, + {"SAM Session", "Sesja SAM"}, + {"Server Tunnels", "Tunele Serwera"}, + {"Client Forwards", "Przekierowania Klienta"}, + {"Server Forwards", "Przekierowania Serwera"}, + {"Unknown page", "Nieznana strona"}, + {"Invalid token", "Nieprawidłowy token"}, + {"SUCCESS", "SUKCES"}, + {"Stream closed", "Strumień zamknięty"}, + {"Stream not found or already was closed", "Strumień nie został znaleziony lub został już zamknięty"}, + {"Destination not found", "Nie znaleziono punktu docelowego"}, + {"StreamID can't be null", "StreamID nie może być null"}, + {"Return to destination page", "Wróć do strony miejsca docelowego"}, + {"You will be redirected in %d seconds", "Zostaniesz prekierowany za %d sekund"}, + {"LeaseSet expiration time updated", "Zaktualizowano czas wygaśnięcia LeaseSet"}, + {"LeaseSet is not found or already expired", "LeaseSet nie został znaleziony lub już wygasł"}, + {"Transit tunnels count must not exceed %d", "Liczba tuneli tranzytowych nie może przekraczać %d"}, + {"Back to commands list", "Powrót do listy poleceń"}, + {"Register at reg.i2p", "Zarejestruj się na reg.i2p"}, + {"Description", "Opis"}, + {"A bit information about service on domain", "Trochę informacji o usłudze w domenie"}, + {"Submit", "Zatwierdź"}, + {"Domain can't end with .b32.i2p", "Domena nie może kończyć się na .b32.i2p"}, + {"Domain must end with .i2p", "Domena musi kończyć się na .i2p"}, + {"Unknown command", "Nieznana komenda"}, + {"Command accepted", "Polecenie zaakceptowane"}, + {"Proxy error", "Błąd serwera proxy"}, + {"Proxy info", "Informacje o proxy"}, + {"Proxy error: Host not found", "Błąd proxy: Nie znaleziono hosta"}, + {"Remote host not found in router's addressbook", "Nie znaleziono zdalnego hosta w książce adresowej routera"}, + {"You may try to find this host on jump services below", "Możesz znaleźć tego hosta na poniższych usługach skoku"}, + {"Invalid request", "Nieprawidłowe żądanie"}, + {"Proxy unable to parse your request", "Serwer proxy nie może przetworzyć Twojego żądania"}, + {"Addresshelper is not supported", "Adresshelper nie jest obsługiwany"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Host %s jest już w książce adresowej routera. Uważaj: źródło tego adresu URL może być szkodliwe! Kliknij tutaj, aby zaktualizować rekord: Kontynuuj."}, + {"Addresshelper forced update rejected", "Wymuszona aktualizacja Addreshelper odrzucona"}, + {"To add host %s in router's addressbook, click here: Continue.", "Aby dodać host %s w książce adresowej routera, kliknij tutaj: Kontynuuj."}, + {"Addresshelper request", "Prośba Addresshelper"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Host %s dodany do książki adresowej routera od pomocnika. Kliknij tutaj, aby kontynuować: Kontynuuj."}, + {"Addresshelper adding", "Dodawanie Addresshelper"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Host %s jest już w książce adresowej routera. Kliknij tutaj, aby zaktualizować rekord: Kontynuuj."}, + {"Addresshelper update", "Aktualizacja Adresshelper"}, + {"Invalid request URI", "Nieprawidłowe URI żądania"}, + {"Can't detect destination host from request", "Nie można wykryć hosta docelowego z żądania"}, + {"Outproxy failure", "Błąd proxy wyjściowego"}, + {"Bad outproxy settings", "Błędne ustawienia proxy wyjściowych"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Host %s nie jest wewnątrz sieci I2P, a proxy wyjściowe nie jest włączone"}, + {"Unknown outproxy URL", "Nieznany adres URL proxy wyjściowego"}, + {"Cannot resolve upstream proxy", "Nie można rozwiązać serwera proxy upstream"}, + {"Hostname is too long", "Nazwa hosta jest zbyt długa"}, + {"Cannot connect to upstream SOCKS proxy", "Nie można połączyć się z proxy SOCKS upstream"}, + {"Cannot negotiate with SOCKS proxy", "Nie można negocjować z proxy SOCKS"}, + {"CONNECT error", "Błąd POŁĄCZENIE"}, + {"Failed to connect", "Nie udało się połączyć"}, + {"SOCKS proxy error", "Błąd proxy SOCKS"}, + {"Failed to send request to upstream", "Nie udało się wysłać żądania do upstream"}, + {"No reply from SOCKS proxy", "Brak odpowiedzi od serwera proxy SOCKS"}, + {"Cannot connect", "Nie można się połączyć"}, + {"HTTP out proxy not implemented", "Serwer wyjściowy proxy HTTP nie został zaimplementowany"}, + {"Cannot connect to upstream HTTP proxy", "Nie można połączyć się z proxy HTTP upstream"}, + {"Host is down", "Host jest niedostępny"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Nie można utworzyć połączenia z żądanym hostem, może być wyłączony. Spróbuj ponownie później."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d dzień", "%d dni", "%d dni", "%d dni"}}, + {"%d hours", {"%d godzina", "%d godziny", "%d godzin", "%d godzin"}}, + {"%d minutes", {"%d minuta", "%d minuty", "%d minut", "%d minut"}}, + {"%d seconds", {"%d sekunda", "%d sekundy", "%d sekund", "%d sekund"}}, + {"", {"", "", "", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Portuguese.cpp b/i18n/Portuguese.cpp new file mode 100644 index 00000000..26204dc3 --- /dev/null +++ b/i18n/Portuguese.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2023-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Portuguese localization file + +namespace i2p +{ +namespace i18n +{ +namespace portuguese // language namespace +{ + // language name in lowercase + static std::string language = "portuguese"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "construindo"}, + {"failed", "falhou"}, + {"expiring", "expirando"}, + {"established", "estabelecido"}, + {"unknown", "desconhecido"}, + {"exploratory", "exploratório"}, + {"Purple I2P Webconsole", "Webconsole Purple I2P"}, + {"i2pd webconsole", "webconsole i2pd"}, + {"Main page", "Página Principal"}, + {"Router commands", "Comandos do Roteador"}, + {"Local Destinations", "Destinos Locais"}, + {"LeaseSets", "LeaseSets"}, + {"Tunnels", "Túneis"}, + {"Transit Tunnels", "Túneis de Trânsito"}, + {"Transports", "Transportes"}, + {"I2P tunnels", "Túneis I2P"}, + {"SAM sessions", "Sessões do SAM"}, + {"ERROR", "ERRO"}, + {"OK", "OK"}, + {"Testing", "Testando"}, + {"Firewalled", "Sob Firewall"}, + {"Unknown", "Desconhecido"}, + {"Proxy", "Proxy"}, + {"Mesh", "Malha"}, + {"Clock skew", "Desvio de Relógio"}, + {"Offline", "Desligado"}, + {"Symmetric NAT", "NAT Simétrico"}, + {"Full cone NAT", "Full cone NAT"}, + {"No Descriptors", "Sem Descritores"}, + {"Uptime", "Tempo Ativo"}, + {"Network status", "Estado da rede"}, + {"Network status v6", "Estado da rede v6"}, + {"Stopping in", "Parando em"}, + {"Family", "Família"}, + {"Tunnel creation success rate", "Taxa de sucesso na criação de túneis"}, + {"Total tunnel creation success rate", "Taxa total de sucesso na criação de túneis"}, + {"Received", "Recebido"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Enviado"}, + {"Transit", "Trânsito"}, + {"Data path", "Diretório de dados"}, + {"Hidden content. Press on text to see.", "Conteúdo oculto. Clique no texto para revelar."}, + {"Router Ident", "Identidade do Roteador"}, + {"Router Family", "Família do Roteador"}, + {"Router Caps", "Limites do Roteador"}, + {"Version", "Versão"}, + {"Our external address", "Nosso endereço externo"}, + {"supported", "suportado"}, + {"Routers", "Roteadores"}, + {"Floodfills", "Modo Inundação"}, + {"Client Tunnels", "Túneis de Clientes"}, + {"Services", "Serviços"}, + {"Enabled", "Ativado"}, + {"Disabled", "Desativado"}, + {"Encrypted B33 address", "Endereço B33 criptografado"}, + {"Address registration line", "Linha de cadastro de endereço"}, + {"Domain", "Domínio"}, + {"Generate", "Gerar"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", " Nota: A string resultante só pode ser usada para registrar domínios 2LD (exemplo.i2p). Para registrar subdomínios por favor utilize o i2pd-tools."}, + {"Address", "Endereço"}, + {"Type", "Tipo"}, + {"EncType", "Tipo de Criptografia"}, + {"Expire LeaseSet", "Expirar LeaseSet"}, + {"Inbound tunnels", "Túneis de Entrada"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Túneis de Saída"}, + {"Tags", "Etiquetas"}, + {"Incoming", "Entradas"}, + {"Outgoing", "Saídas"}, + {"Destination", "Destinos"}, + {"Amount", "Quantidade"}, + {"Incoming Tags", "Etiquetas de Entrada"}, + {"Tags sessions", "Sessões de Etiquetas"}, + {"Status", "Estado"}, + {"Local Destination", "Destino Local"}, + {"Streams", "Fluxos"}, + {"Close stream", "Fechar fluxo"}, + {"Such destination is not found", "Tal destino não foi encontrado"}, + {"I2CP session not found", "Sessão do I2CP não encontrada"}, + {"I2CP is not enabled", "I2CP não está ativado"}, + {"Invalid", "Inválido"}, + {"Store type", "Tipo de armazenamento"}, + {"Expires", "Expira em"}, + {"Non Expired Leases", "Sessões não expiradas"}, + {"Gateway", "Gateway"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "Data final"}, + {"floodfill mode is disabled", "Mode de inundação está desativado"}, + {"Queue size", "Tamanho da fila"}, + {"Run peer test", "Executar teste de peers"}, + {"Reload tunnels configuration", "Recarregar a configuração dos túneis"}, + {"Decline transit tunnels", "Negar túneis de trânsito"}, + {"Accept transit tunnels", "Aceitar túneis de trânsito"}, + {"Cancel graceful shutdown", "Cancelar desligamento gracioso"}, + {"Start graceful shutdown", "Iniciar desligamento gracioso"}, + {"Force shutdown", "Forçar desligamento"}, + {"Reload external CSS styles", "Recarregar estilos CSS externos"}, + {"Note: any action done here are not persistent and not changes your config files.", " Nota: Qualquer ação feita aqui não será permanente e não altera os seus arquivos de configuração."}, + {"Logging level", "Nível de registro"}, + {"Transit tunnels limit", "Limite de túneis de trânsito"}, + {"Change", "Mudar"}, + {"Change language", "Trocar idioma"}, + {"no transit tunnels currently built", "Nenhum túnel de trânsito construido no momento"}, + {"SAM disabled", "SAM desativado"}, + {"no sessions currently running", "Nenhuma sessão funcionando no momento"}, + {"SAM session not found", "Nenhuma sessão do SAM encontrada"}, + {"SAM Session", "Sessão do SAM"}, + {"Server Tunnels", "Túneis de Servidor"}, + {"Client Forwards", "Túneis de Cliente"}, + {"Server Forwards", "Encaminhamentos de Servidor"}, + {"Unknown page", "Página desconhecida"}, + {"Invalid token", "Token Inválido"}, + {"SUCCESS", "SUCESSO"}, + {"Stream closed", "Fluxo fechado"}, + {"Stream not found or already was closed", "Fluxo não encontrado ou já fechado"}, + {"Destination not found", "Destino não encontrado"}, + {"StreamID can't be null", "StreamID não pode ser nulo"}, + {"Return to destination page", "Retornar para à página de destino"}, + {"You will be redirected in %d seconds", "Você será redirecionado em %d segundos"}, + {"LeaseSet expiration time updated", "Tempo de validade do LeaseSet atualizado"}, + {"LeaseSet is not found or already expired", "LeaseSet não foi encontrado ou já expirou"}, + {"Transit tunnels count must not exceed %d", "A contagem de túneis de trânsito não deve exceder %d"}, + {"Back to commands list", "Voltar para a lista de comandos"}, + {"Register at reg.i2p", "Registrar em reg.i2p"}, + {"Description", "Descrição"}, + {"A bit information about service on domain", "Algumas informações sobre o serviço no domínio"}, + {"Submit", "Enviar"}, + {"Domain can't end with .b32.i2p", "O domínio não pode terminar com .b32.i2p"}, + {"Domain must end with .i2p", "O domínio não pode terminar com .i2p"}, + {"Unknown command", "Comando desconhecido"}, + {"Command accepted", "Comando aceito"}, + {"Proxy error", "Erro no proxy"}, + {"Proxy info", "Informações do proxy"}, + {"Proxy error: Host not found", "Erro no proxy: Host não encontrado"}, + {"Remote host not found in router's addressbook", "O host remoto não foi encontrado no livro de endereços do roteador"}, + {"You may try to find this host on jump services below", "Você pode tentar encontrar este host nos serviços de jump abaixo"}, + {"Invalid request", "Requisição inválida"}, + {"Proxy unable to parse your request", "O proxy foi incapaz de processar a sua requisição"}, + {"Addresshelper is not supported", "O Auxiliar de Endereços não é suportado"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "O host %s já está no catálogo de endereços do roteador. Cuidado: a fonte desta URL pode ser perigosa! Clique aqui para atualizar o registro: Continuar."}, + {"Addresshelper forced update rejected", "A atualização forçada do Auxiliar de Endereços foi rejeitada"}, + {"To add host %s in router's addressbook, click here: Continue.", "Para adicionar o host %s ao catálogo de endereços do roteador, clique aqui: Continuar ."}, + {"Addresshelper request", "Requisição ao Auxiliar de Endereços"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "O host %s foi adicionado ao catálogo de endereços do roteador por um auxiliar. Clique aqui para prosseguir: Continuar ."}, + {"Addresshelper adding", "Auxiliar de Endereço adicionando"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "O host %s já está no catálogo de endereços do roteador . Clique aqui para atualizar o registro: Continuar."}, + {"Addresshelper update", "Atualização do Auxiliar de Endereços"}, + {"Invalid request URI", "A URI de requisição é inválida"}, + {"Can't detect destination host from request", "Incapaz de detectar o host de destino da requisição"}, + {"Outproxy failure", "Falha no outproxy"}, + {"Bad outproxy settings", "Má configurações do outproxy"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "O host %s não está dentro da rede I2P, mas o outproxy não está ativado"}, + {"Unknown outproxy URL", "URL de outproxy desconhecida"}, + {"Cannot resolve upstream proxy", "Não é possível resolver o proxy de entrada"}, + {"Hostname is too long", "O hostname é muito longo"}, + {"Cannot connect to upstream SOCKS proxy", "Não é possível se conectar ao proxy SOCKS de entrada"}, + {"Cannot negotiate with SOCKS proxy", "Não é possível negociar com o proxy SOCKS"}, + {"CONNECT error", "Erro de CONEXÃO"}, + {"Failed to connect", "Falha ao conectar"}, + {"SOCKS proxy error", "Erro no proxy SOCKS"}, + {"Failed to send request to upstream", "Falha ao enviar requisição para o fluxo de entrada"}, + {"No reply from SOCKS proxy", "Sem resposta do proxy SOCKS"}, + {"Cannot connect", "Impossível conectar"}, + {"HTTP out proxy not implemented", "proxy de saída HTTP não implementado"}, + {"Cannot connect to upstream HTTP proxy", "Não é possível conectar ao proxy HTTP de entrada"}, + {"Host is down", "Host está desligado"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Não é possível se conectar ao host requisitado, talvez ele esteja for do ar. Por favor, tente novamente mais tarde."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d Dia", "%d Dias"}}, + {"%d hours", {"%d hora", "%d horas"}}, + {"%d minutes", {"%d minuto", "%d minutos"}}, + {"%d seconds", {"%d Segundo", "%d segundos"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Russian.cpp b/i18n/Russian.cpp new file mode 100644 index 00000000..235cc0ae --- /dev/null +++ b/i18n/Russian.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Russian localization file + +namespace i2p +{ +namespace i18n +{ +namespace russian // language namespace +{ + // language name in lowercase + static std::string language = "russian"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n % 10 == 1 && n % 100 != 11 ? 0 : n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f КиБ"}, + {"%.2f MiB", "%.2f МиБ"}, + {"%.2f GiB", "%.2f ГиБ"}, + {"building", "строится"}, + {"failed", "неудачный"}, + {"expiring", "истекает"}, + {"established", "работает"}, + {"unknown", "неизвестно"}, + {"exploratory", "исследовательский"}, + {"Purple I2P Webconsole", "Веб-консоль Purple I2P"}, + {"i2pd webconsole", "Веб-консоль i2pd"}, + {"Main page", "Главная"}, + {"Router commands", "Команды роутера"}, + {"Local Destinations", "Локальные назначения"}, + {"LeaseSets", "Лизсеты"}, + {"Tunnels", "Туннели"}, + {"Transit Tunnels", "Транзитные туннели"}, + {"Transports", "Транспорты"}, + {"I2P tunnels", "I2P туннели"}, + {"SAM sessions", "SAM сессии"}, + {"ERROR", "ОШИБКА"}, + {"OK", "OK"}, + {"Testing", "Тестирование"}, + {"Firewalled", "Заблокировано извне"}, + {"Unknown", "Неизвестно"}, + {"Proxy", "Прокси"}, + {"Mesh", "MESH-сеть"}, + {"Clock skew", "Не точное время"}, + {"Offline", "Оффлайн"}, + {"Symmetric NAT", "Симметричный NAT"}, + {"Full cone NAT", "Full cone NAT"}, + {"No Descriptors", "Нет дескрипторов"}, + {"Uptime", "В сети"}, + {"Network status", "Сетевой статус"}, + {"Network status v6", "Сетевой статус v6"}, + {"Stopping in", "Остановка через"}, + {"Family", "Семейство"}, + {"Tunnel creation success rate", "Успешно построенных туннелей"}, + {"Total tunnel creation success rate", "Общий процент успешно построенных туннелей"}, + {"Received", "Получено"}, + {"%.2f KiB/s", "%.2f КиБ/с"}, + {"Sent", "Отправлено"}, + {"Transit", "Транзит"}, + {"Data path", "Путь к данным"}, + {"Hidden content. Press on text to see.", "Скрытый контент. Нажмите на текст чтобы отобразить."}, + {"Router Ident", "Идентификатор роутера"}, + {"Router Family", "Семейство роутера"}, + {"Router Caps", "Флаги роутера"}, + {"Version", "Версия"}, + {"Our external address", "Наш внешний адрес"}, + {"supported", "поддерживается"}, + {"Routers", "Роутеры"}, + {"Floodfills", "Флудфилы"}, + {"Client Tunnels", "Клиентские туннели"}, + {"Services", "Сервисы"}, + {"Enabled", "Включено"}, + {"Disabled", "Выключено"}, + {"Encrypted B33 address", "Шифрованные B33 адреса"}, + {"Address registration line", "Строка регистрации адреса"}, + {"Domain", "Домен"}, + {"Generate", "Сгенерировать"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Примечание: полученная строка может быть использована только для регистрации доменов второго уровня (example.i2p). Для регистрации поддоменов используйте i2pd-tools."}, + {"Address", "Адрес"}, + {"Type", "Тип"}, + {"EncType", "ТипШифр"}, + {"Expire LeaseSet", "Просрочить Лизсет"}, + {"Inbound tunnels", "Входящие туннели"}, + {"%dms", "%dмс"}, + {"Outbound tunnels", "Исходящие туннели"}, + {"Tags", "Теги"}, + {"Incoming", "Входящие"}, + {"Outgoing", "Исходящие"}, + {"Destination", "Назначение"}, + {"Amount", "Количество"}, + {"Incoming Tags", "Входящие теги"}, + {"Tags sessions", "Сессии тегов"}, + {"Status", "Статус"}, + {"Local Destination", "Локальное назначение"}, + {"Streams", "Стримы"}, + {"Close stream", "Закрыть стрим"}, + {"Such destination is not found", "Такая точка назначения не найдена"}, + {"I2CP session not found", "I2CP сессия не найдена"}, + {"I2CP is not enabled", "I2CP не включен"}, + {"Invalid", "Некорректный"}, + {"Store type", "Тип хранилища"}, + {"Expires", "Истекает"}, + {"Non Expired Leases", "Не истекшие Lease-ы"}, + {"Gateway", "Шлюз"}, + {"TunnelID", "ID туннеля"}, + {"EndDate", "Заканчивается"}, + {"floodfill mode is disabled", "режим флудфила отключен"}, + {"Queue size", "Размер очереди"}, + {"Run peer test", "Запустить тестирование"}, + {"Reload tunnels configuration", "Перезагрузить конфигурацию туннелей"}, + {"Decline transit tunnels", "Отклонять транзитные туннели"}, + {"Accept transit tunnels", "Принимать транзитные туннели"}, + {"Cancel graceful shutdown", "Отменить плавную остановку"}, + {"Start graceful shutdown", "Запустить плавную остановку"}, + {"Force shutdown", "Принудительная остановка"}, + {"Reload external CSS styles", "Перезагрузить внешние CSS стили"}, + {"Note: any action done here are not persistent and not changes your config files.", "Примечание: любое действие произведенное здесь не является постоянным и не изменяет ваши конфигурационные файлы."}, + {"Logging level", "Уровень логирования"}, + {"Transit tunnels limit", "Лимит транзитных туннелей"}, + {"Change", "Изменить"}, + {"Change language", "Изменение языка"}, + {"no transit tunnels currently built", "нет построенных транзитных туннелей"}, + {"SAM disabled", "SAM выключен"}, + {"no sessions currently running", "нет запущенных сессий"}, + {"SAM session not found", "SAM сессия не найдена"}, + {"SAM Session", "SAM сессия"}, + {"Server Tunnels", "Серверные туннели"}, + {"Client Forwards", "Клиентские перенаправления"}, + {"Server Forwards", "Серверные перенаправления"}, + {"Unknown page", "Неизвестная страница"}, + {"Invalid token", "Неверный токен"}, + {"SUCCESS", "УСПЕШНО"}, + {"Stream closed", "Стрим закрыт"}, + {"Stream not found or already was closed", "Стрим не найден или уже закрыт"}, + {"Destination not found", "Точка назначения не найдена"}, + {"StreamID can't be null", "StreamID не может быть пустым"}, + {"Return to destination page", "Вернуться на страницу точки назначения"}, + {"You will be redirected in %d seconds", "Вы будете переадресованы через %d секунд"}, + {"LeaseSet expiration time updated", "Время действия LeaseSet обновлено"}, + {"LeaseSet is not found or already expired", "Лизсет не найден или время действия уже истекло"}, + {"Transit tunnels count must not exceed %d", "Число транзитных туннелей не должно превышать %d"}, + {"Back to commands list", "Вернуться к списку команд"}, + {"Register at reg.i2p", "Зарегистрировать на reg.i2p"}, + {"Description", "Описание"}, + {"A bit information about service on domain", "Немного информации о сервисе на домене"}, + {"Submit", "Отправить"}, + {"Domain can't end with .b32.i2p", "Домен не может заканчиваться на .b32.i2p"}, + {"Domain must end with .i2p", "Домен должен заканчиваться на .i2p"}, + {"Unknown command", "Неизвестная команда"}, + {"Command accepted", "Команда принята"}, + {"Proxy error", "Ошибка прокси"}, + {"Proxy info", "Информация прокси"}, + {"Proxy error: Host not found", "Ошибка прокси: Узел не найден"}, + {"Remote host not found in router's addressbook", "Запрошенный узел не найден в адресной книге роутера"}, + {"You may try to find this host on jump services below", "Вы можете попробовать найти узел через джамп сервисы ниже"}, + {"Invalid request", "Некорректный запрос"}, + {"Proxy unable to parse your request", "Прокси не может разобрать ваш запрос"}, + {"Addresshelper is not supported", "Addresshelper не поддерживается"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Узел %s уже в адресной книге роутера. Будьте осторожны: источник данной ссылки может быть вредоносным! Нажмите здесь, чтобы обновить запись: Продолжить."}, + {"Addresshelper forced update rejected", "Принудительное обновление через Addresshelper отклонено"}, + {"To add host %s in router's addressbook, click here: Continue.", "Чтобы добавить узел %s в адресную книгу роутера, нажмите здесь: Продолжить."}, + {"Addresshelper request", "Запрос добавления Addresshelper"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Узел %s добавлен в адресную книгу роутера через хелпер. Нажмите здесь, чтобы продолжить: Продолжить."}, + {"Addresshelper adding", "Добавление Addresshelper"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Узел %s уже в адресной книге роутера. Нажмите здесь, чтобы обновить запись: Продолжить."}, + {"Addresshelper update", "Обновление записи через Addresshelper"}, + {"Invalid request URI", "Некорректный URI запроса"}, + {"Can't detect destination host from request", "Не удалось определить адрес назначения из запроса"}, + {"Outproxy failure", "Ошибка внешнего прокси"}, + {"Bad outproxy settings", "Некорректные настройки внешнего прокси"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Узел %s не в I2P сети, но внешний прокси не включен"}, + {"Unknown outproxy URL", "Неизвестный URL внешнего прокси"}, + {"Cannot resolve upstream proxy", "Не удается определить вышестоящий прокси"}, + {"Hostname is too long", "Имя хоста слишком длинное"}, + {"Cannot connect to upstream SOCKS proxy", "Не удалось подключиться к вышестоящему SOCKS прокси серверу"}, + {"Cannot negotiate with SOCKS proxy", "Не удается договориться с вышестоящим SOCKS прокси"}, + {"CONNECT error", "Ошибка CONNECT запроса"}, + {"Failed to connect", "Не удалось соединиться"}, + {"SOCKS proxy error", "Ошибка SOCKS прокси"}, + {"Failed to send request to upstream", "Не удалось отправить запрос вышестоящему прокси серверу"}, + {"No reply from SOCKS proxy", "Нет ответа от SOCKS прокси сервера"}, + {"Cannot connect", "Не удалось подключиться"}, + {"HTTP out proxy not implemented", "Поддержка внешнего HTTP прокси сервера не реализована"}, + {"Cannot connect to upstream HTTP proxy", "Не удалось подключиться к вышестоящему HTTP прокси серверу"}, + {"Host is down", "Узел недоступен"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Не удалось установить соединение к запрошенному узлу, возможно он не в сети. Попробуйте повторить запрос позже."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d день", "%d дня", "%d дней"}}, + {"%d hours", {"%d час", "%d часа", "%d часов"}}, + {"%d minutes", {"%d минуту", "%d минуты", "%d минут"}}, + {"%d seconds", {"%d секунду", "%d секунды", "%d секунд"}}, + {"", {"", "", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Spanish.cpp b/i18n/Spanish.cpp new file mode 100644 index 00000000..0e657fb4 --- /dev/null +++ b/i18n/Spanish.cpp @@ -0,0 +1,204 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Spanish localization file + +namespace i2p +{ +namespace i18n +{ +namespace spanish // language namespace +{ + // language name in lowercase + static std::string language = "spanish"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "pendiente"}, + {"failed", "fallido"}, + {"expiring", "expiró"}, + {"established", "establecido"}, + {"unknown", "desconocido"}, + {"exploratory", "exploratorio"}, + {"Purple I2P Webconsole", "Consola web de Purple I2P"}, + {"i2pd webconsole", "Consola web de i2pd"}, + {"Main page", "Inicio"}, + {"Router commands", "Comandos de enrutador"}, + {"Local Destinations", "Destinos locales"}, + {"LeaseSets", "LeaseSets"}, + {"Tunnels", "Túneles"}, + {"Transit Tunnels", "Túneles de Tránsito"}, + {"Transports", "Transportes"}, + {"I2P tunnels", "Túneles I2P"}, + {"SAM sessions", "Sesiones SAM"}, + {"ERROR", "ERROR"}, + {"OK", "VALE"}, + {"Testing", "Probando"}, + {"Firewalled", "Con cortafuegos"}, + {"Unknown", "Desconocido"}, + {"Proxy", "Proxy"}, + {"Mesh", "Malla"}, + {"Clock skew", "Reloj desfasado"}, + {"Offline", "Desconectado"}, + {"Symmetric NAT", "NAT simétrico"}, + {"Uptime", "Tiempo en línea"}, + {"Network status", "Estado de red"}, + {"Network status v6", "Estado de red v6"}, + {"Stopping in", "Parando en"}, + {"Family", "Familia"}, + {"Tunnel creation success rate", "Tasa de éxito de creación de túneles"}, + {"Received", "Recibido"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Enviado"}, + {"Transit", "Tránsito"}, + {"Data path", "Ruta de datos"}, + {"Hidden content. Press on text to see.", "Contenido oculto. Presione para ver."}, + {"Router Ident", "Ident del Enrutador"}, + {"Router Family", "Familia de enrutador"}, + {"Router Caps", "Atributos del Enrutador"}, + {"Version", "Versión"}, + {"Our external address", "Nuestra dirección externa"}, + {"supported", "soportado"}, + {"Routers", "Enrutadores"}, + {"Floodfills", "Inundaciones"}, + {"Client Tunnels", "Túneles de cliente"}, + {"Services", "Servicios"}, + {"Enabled", "Activado"}, + {"Disabled", "Desactivado"}, + {"Encrypted B33 address", "Dirección encriptada B33"}, + {"Address registration line", "Línea para registrar direcciones"}, + {"Domain", "Dominio"}, + {"Generate", "Generar"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Nota: la cadena resultante solo se puede usar para registrar dominios 2LD (ejemplo.i2p). Para registrar subdominios, por favor utilice i2pd-tools."}, + {"Address", "Dirección"}, + {"Type", "Tipo"}, + {"EncType", "TipoEncrip"}, + {"Inbound tunnels", "Túneles entrantes"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Túneles salientes"}, + {"Tags", "Etiquetas"}, + {"Incoming", "Entrante"}, + {"Outgoing", "Saliente"}, + {"Destination", "Destino"}, + {"Amount", "Cantidad"}, + {"Incoming Tags", "Etiquetas entrantes"}, + {"Tags sessions", "Sesiones de etiquetas"}, + {"Status", "Estado"}, + {"Local Destination", "Destino Local"}, + {"Streams", "Flujos"}, + {"Close stream", "Cerrar flujo"}, + {"I2CP session not found", "Sesión I2CP no encontrada"}, + {"I2CP is not enabled", "I2CP no está activado"}, + {"Invalid", "Inválido"}, + {"Store type", "Tipo de almacenamiento"}, + {"Expires", "Caduca"}, + {"Non Expired Leases", "Sesiones No Expiradas"}, + {"Gateway", "Puerta de enlace"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "FechaVenc"}, + {"Queue size", "Tamaño de cola"}, + {"Run peer test", "Ejecutar prueba de par"}, + {"Decline transit tunnels", "Rechazar túneles de tránsito"}, + {"Accept transit tunnels", "Aceptar túneles de tránsito"}, + {"Cancel graceful shutdown", "Cancelar apagado con gracia"}, + {"Start graceful shutdown", "Iniciar apagado con gracia"}, + {"Force shutdown", "Forzar apagado"}, + {"Reload external CSS styles", "Recargar estilos CSS externos"}, + {"Note: any action done here are not persistent and not changes your config files.", "Nota: cualquier acción hecha aquí no es persistente y no cambia tus archivos de configuración."}, + {"Logging level", "Nivel de registro de errores"}, + {"Transit tunnels limit", "Límite de túneles de tránsito"}, + {"Change", "Cambiar"}, + {"Change language", "Cambiar idioma"}, + {"no transit tunnels currently built", "no hay túneles de tránsito actualmente construidos"}, + {"SAM disabled", "SAM desactivado"}, + {"no sessions currently running", "no hay sesiones ejecutándose ahora"}, + {"SAM session not found", "Sesión SAM no encontrada"}, + {"SAM Session", "Sesión SAM"}, + {"Server Tunnels", "Túneles de Servidor"}, + {"Client Forwards", "Redirecciones de Cliente"}, + {"Server Forwards", "Redirecciones de Servidor"}, + {"Unknown page", "Página desconocida"}, + {"Invalid token", "Token inválido"}, + {"SUCCESS", "ÉXITO"}, + {"Stream closed", "Transmisión cerrada"}, + {"Stream not found or already was closed", "No se encontró la transmisión o ya se cerró"}, + {"Destination not found", "Destino no encontrado"}, + {"StreamID can't be null", "StreamID no puede ser nulo"}, + {"Return to destination page", "Volver a la página de destino"}, + {"Back to commands list", "Volver a lista de comandos"}, + {"Register at reg.i2p", "Registrar en reg.i2p"}, + {"Description", "Descripción"}, + {"A bit information about service on domain", "Un poco de información sobre el servicio en el dominio"}, + {"Submit", "Enviar"}, + {"Domain can't end with .b32.i2p", "El dominio no puede terminar con .b32.i2p"}, + {"Domain must end with .i2p", "El dominio debe terminar con .i2p"}, + {"Such destination is not found", "No se encontró el destino"}, + {"Unknown command", "Comando desconocido"}, + {"Command accepted", "Comando aceptado"}, + {"Proxy error", "Error de proxy"}, + {"Proxy info", "Información del proxy"}, + {"Proxy error: Host not found", "Error de proxy: Host no encontrado"}, + {"Remote host not found in router's addressbook", "Servidor remoto no encontrado en la libreta de direcciones del enrutador"}, + {"You may try to find this host on jump services below", "Puede intentar encontrar este dominio en los siguientes servicios de salto"}, + {"Invalid request", "Solicitud inválida"}, + {"Proxy unable to parse your request", "Proxy no puede procesar su solicitud"}, + {"Invalid request URI", "URI de solicitud inválida"}, + {"Can't detect destination host from request", "No se puede detectar el host de destino de la solicitud"}, + {"Outproxy failure", "Fallo en el proxy saliente"}, + {"Bad outproxy settings", "Configuración de outproxy incorrecta"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Dominio %s no está dentro de la red I2P, pero el proxy de salida no está activado"}, + {"Unknown outproxy URL", "URL de proxy outproxy desconocido"}, + {"Cannot resolve upstream proxy", "No se puede resolver el proxy de upstream"}, + {"Hostname is too long", "Nombre de dominio muy largo"}, + {"Cannot connect to upstream SOCKS proxy", "No se puede conectar al proxy SOCKS principal"}, + {"Cannot negotiate with SOCKS proxy", "No se puede negociar con el proxy SOCKS"}, + {"CONNECT error", "Error de CONNECT"}, + {"Failed to connect", "Error al conectar"}, + {"SOCKS proxy error", "Error de proxy SOCKS"}, + {"Failed to send request to upstream", "No se pudo enviar petición al principal"}, + {"No reply from SOCKS proxy", "Sin respuesta del proxy SOCKS"}, + {"Cannot connect", "No se puede conectar"}, + {"HTTP out proxy not implemented", "Proxy externo HTTP no implementado"}, + {"Cannot connect to upstream HTTP proxy", "No se puede conectar al proxy HTTP principal"}, + {"Host is down", "Servidor caído"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "No se puede crear la conexión al servidor solicitado, puede estar caído. Intente de nuevo más tarde."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d día", "%d días"}}, + {"%d hours", {"%d hora", "%d horas"}}, + {"%d minutes", {"%d minuto", "%d minutos"}}, + {"%d seconds", {"%d segundo", "%d segundos"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Swedish.cpp b/i18n/Swedish.cpp new file mode 100644 index 00000000..df13d22f --- /dev/null +++ b/i18n/Swedish.cpp @@ -0,0 +1,220 @@ +/* +* Copyright (c) 2023-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Swedish localization file + +namespace i2p +{ +namespace i18n +{ +namespace swedish // language namespace +{ + // language name in lowercase + static std::string language = "swedish"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "bygger"}, + {"failed", "misslyckad"}, + {"expiring", "utgår"}, + {"established", "upprättad"}, + {"unknown", "okänt"}, + {"exploratory", "utforskande"}, + {"Purple I2P Webconsole", "Purple I2P Webbkonsoll"}, + {"i2pd webconsole", "i2pd-Webbkonsoll"}, + {"Main page", "Huvudsida"}, + {"Router commands", "Routerkommandon"}, + {"Local Destinations", "Lokala Platser"}, + {"LeaseSets", "Hyresuppsättningar"}, + {"Tunnels", "Tunnlar"}, + {"Transit Tunnels", "Förmedlande Tunnlar"}, + {"Transports", "Transporter"}, + {"I2P tunnels", "I2P-tunnlar"}, + {"SAM sessions", "SAM-perioder"}, + {"ERROR", "FEL"}, + {"OK", "OK"}, + {"Testing", "Prövar"}, + {"Firewalled", "Bakom Brandvägg"}, + {"Unknown", "Okänt"}, + {"Proxy", "Proxy"}, + {"Mesh", "Mesh"}, + {"Clock skew", "Tidsförskjutning"}, + {"Offline", "Nedkopplad"}, + {"Symmetric NAT", "Symmetrisk NAT"}, + {"Full cone NAT", "Full kon NAT"}, + {"No Descriptors", "Inga Beskrivningar"}, + {"Uptime", "Upptid"}, + {"Network status", "Nätverkstillstånd"}, + {"Network status v6", "Nätverkstillstånd v6"}, + {"Stopping in", "Avstängd om"}, + {"Family", "Familj"}, + {"Tunnel creation success rate", "Andel framgångsrika tunnlar"}, + {"Received", "Mottaget"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Skickat"}, + {"Transit", "Förmedlat"}, + {"Data path", "Sökväg"}, + {"Hidden content. Press on text to see.", "Dolt innehåll. Tryck för att visa."}, + {"Router Ident", "Routeridentitet"}, + {"Router Family", "Routerfamilj"}, + {"Router Caps", "Routerbegränsningar"}, + {"Version", "Version"}, + {"Our external address", "Vår externa adress"}, + {"supported", "stöds"}, + {"Routers", "Routrar"}, + {"Floodfills", "Översvämningsfyllare"}, + {"Client Tunnels", "Klienttunnlar"}, + {"Services", "Tjänster"}, + {"Enabled", "Påslaget"}, + {"Disabled", "Avslaget"}, + {"Encrypted B33 address", "Krypterad B33-Adress"}, + {"Address registration line", "Adressregistreringsrad"}, + {"Domain", "Domän"}, + {"Generate", "Skapa"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Uppmärksamma: den resulterande strängen kan enbart användas för att registrera 2LD-domäner (exempel.i2p). För att registrera underdomäner, vänligen använd i2pd-tools."}, + {"Address", "Adress"}, + {"Type", "Typ"}, + {"EncType", "EncTyp"}, + {"Inbound tunnels", "Ingående Tunnlar"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Utgående Tunnlar"}, + {"Tags", "Taggar"}, + {"Incoming", "Ingående"}, + {"Outgoing", "Utgående"}, + {"Destination", "Plats"}, + {"Amount", "Mängd"}, + {"Incoming Tags", "Ingående Taggar"}, + {"Tags sessions", "Tagg-perioder"}, + {"Status", "Tillstånd"}, + {"Local Destination", "Lokal Plats"}, + {"Streams", "Strömmar"}, + {"Close stream", "Stäng strömmen"}, + {"Such destination is not found", "En sådan plats hittas ej"}, + {"I2CP session not found", "I2CP-period hittades inte"}, + {"I2CP is not enabled", "I2CP är inte påslaget"}, + {"Invalid", "Ogiltig"}, + {"Store type", "Lagringstyp"}, + {"Expires", "Utgångsdatum"}, + {"Non Expired Leases", "Ickeutgångna Hyresuppsättningar"}, + {"Gateway", "Gateway"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "EndDate"}, + {"floodfill mode is disabled", "Floodfill läget är inaktiverat"}, + {"Queue size", "Köstorlek"}, + {"Run peer test", "Utför utsiktstest"}, + {"Reload tunnels configuration", "Ladda om tunnelkonfiguration"}, + {"Decline transit tunnels", "Avvisa förmedlande tunnlar"}, + {"Accept transit tunnels", "Tillåt förmedlande tunnlar"}, + {"Cancel graceful shutdown", "Avbryt välvillig avstängning"}, + {"Start graceful shutdown", "Påbörja välvillig avstängning"}, + {"Force shutdown", "Tvingad avstängning"}, + {"Reload external CSS styles", "Ladda om externa CSS-stilar"}, + {"Note: any action done here are not persistent and not changes your config files.", "Uppmärksamma: inga ändringar här är beständiga eller påverkar dina inställningsfiler."}, + {"Logging level", "Protokollförningsnivå"}, + {"Transit tunnels limit", "Begränsa förmedlande tunnlar"}, + {"Change", "Ändra"}, + {"Change language", "Ändra språk"}, + {"no transit tunnels currently built", "inga förmedlande tunnlar har byggts"}, + {"SAM disabled", "SAM avslaget"}, + {"no sessions currently running", "inga perioder igång"}, + {"SAM session not found", "SAM-perioder hittades ej"}, + {"SAM Session", "SAM-period"}, + {"Server Tunnels", "Värdtunnlar"}, + {"Client Forwards", "Klientförpassningar"}, + {"Server Forwards", "Värdförpassningar"}, + {"Unknown page", "Okänd sida"}, + {"Invalid token", "Ogiltig polett"}, + {"SUCCESS", "FRAMGÅNG"}, + {"Stream closed", "Ström stängd"}, + {"Stream not found or already was closed", "Strömmen hittades inte eller var redan avslutad"}, + {"Destination not found", "Plats hittades ej"}, + {"StreamID can't be null", "Ström-ID kan inte vara null"}, + {"Return to destination page", "Återvänd till platssidan"}, + {"You will be redirected in %d seconds", "Du omdirigeras inom %d sekunder"}, + {"Transit tunnels count must not exceed %d", "Förmedlande tunnlar får inte överstiga %d"}, + {"Back to commands list", "Tillbaka till kommandolistan"}, + {"Register at reg.i2p", "Registrera vid reg.i2p"}, + {"Description", "Beskrivning"}, + {"A bit information about service on domain", "Ett stycke information om domänens tjänst"}, + {"Submit", "Skicka"}, + {"Domain can't end with .b32.i2p", "Domänen får inte sluta med .b32.i2p"}, + {"Domain must end with .i2p", "Domänen måste sluta med .i2p"}, + {"Unknown command", "Okänt kommando"}, + {"Command accepted", "Kommando accepterades"}, + {"Proxy error", "Proxyfel"}, + {"Proxy info", "Proxyinfo"}, + {"Proxy error: Host not found", "Proxyfel: Värden hittades ej"}, + {"Remote host not found in router's addressbook", "Främmande värd hittades inte i routerns adressbok"}, + {"You may try to find this host on jump services below", "Du kan försöka att hitta värden genom hopptjänsterna nedan"}, + {"Invalid request", "Ogiltig förfrågan"}, + {"Proxy unable to parse your request", "Proxyt kan inte behandla din förfrågan"}, + {"Addresshelper is not supported", "Adresshjälparen stöds ej"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Värd %s är redan i routerns adressbok. Var försiktig: källan till denna URL kan vara skadlig! Klicka här för att uppdatera registreringen: Fortsätt."}, + {"Addresshelper forced update rejected", "Tvingad uppdatering av adresshjälparen nekad"}, + {"To add host %s in router's addressbook, click here: Continue.", "För att lägga till värd %s i routerns adressbok, klicka här: Fortsätt."}, + {"Addresshelper request", "Adresshjälpare förfrågan"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Värd %s tillagd i routerns adressbok från hjälparen. Klicka här för att fortsätta: Fortsätt."}, + {"Addresshelper adding", "Adresshjälpare tilläggning"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Värd %s är redan i routerns adressbok. Klicka här för att uppdatera registreringen: Fortsätt."}, + {"Addresshelper update", "Adresshjälpare uppdatering"}, + {"Invalid request URI", "Ogiltig förfrågnings-URI"}, + {"Can't detect destination host from request", "Kan inte upptäcka platsvärden från förfrågan"}, + {"Outproxy failure", "Utproxyfel"}, + {"Bad outproxy settings", "Ogiltig utproxyinställning"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Värd %s är inte inom I2P-näverket, men utproxy är inte påslaget"}, + {"Unknown outproxy URL", "okänt Utproxy-URL"}, + {"Cannot resolve upstream proxy", "Hittar inte uppströmsproxyt"}, + {"Hostname is too long", "Värdnamnet är för långt"}, + {"Cannot connect to upstream SOCKS proxy", "Kan inte ansluta till uppström SOCKS-proxy"}, + {"Cannot negotiate with SOCKS proxy", "Kan inte förhandla med SOCKSproxyt"}, + {"CONNECT error", "CONNECT-fel"}, + {"Failed to connect", "Anslutningen misslyckades"}, + {"SOCKS proxy error", "SOCKSproxyfel"}, + {"Failed to send request to upstream", "Förfrågan uppströms kunde ej skickas"}, + {"No reply from SOCKS proxy", "Fick inget svar från SOCKSproxyt"}, + {"Cannot connect", "Kan inte ansluta"}, + {"HTTP out proxy not implemented", "HTTP-Utproxy ej implementerat"}, + {"Cannot connect to upstream HTTP proxy", "Kan inte ansluta till uppströms HTTP-proxy"}, + {"Host is down", "Värden är nere"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Kan inte ansluta till värden, den kan vara nere. Vänligen försök senare."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d dag", "%d dagar"}}, + {"%d hours", {"%d timme", "%d timmar"}}, + {"%d minutes", {"%d minut", "%d minuter"}}, + {"%d seconds", {"%d sekund", "%d sekunder"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p + diff --git a/i18n/Turkish.cpp b/i18n/Turkish.cpp new file mode 100644 index 00000000..9946b336 --- /dev/null +++ b/i18n/Turkish.cpp @@ -0,0 +1,114 @@ +/* +* Copyright (c) 2023-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Turkish localization file + +namespace i2p +{ +namespace i18n +{ +namespace turkish // language namespace +{ + // language name in lowercase + static std::string language = "turkish"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "kuruluyor"}, + {"failed", "başarısız"}, + {"expiring", "süresi geçiyor"}, + {"established", "kurulmuş"}, + {"unknown", "bilinmeyen"}, + {"Purple I2P Webconsole", "Mor I2P Webkonsolu"}, + {"i2pd webconsole", "i2pd webkonsolu"}, + {"Main page", "Ana sayfa"}, + {"Router commands", "Router komutları"}, + {"Local Destinations", "Yerel Hedefler"}, + {"Tunnels", "Tüneller"}, + {"Transit Tunnels", "Transit Tünelleri"}, + {"Transports", "Taşıma"}, + {"I2P tunnels", "I2P tünelleri"}, + {"SAM sessions", "SAM oturumları"}, + {"ERROR", "HATA"}, + {"OK", "TAMAM"}, + {"Testing", "Test ediliyor"}, + {"Firewalled", "Güvenlik Duvarı Kısıtlaması"}, + {"Unknown", "Bilinmeyen"}, + {"Proxy", "Proxy"}, + {"Clock skew", "Saat sorunu"}, + {"Offline", "Çevrimdışı"}, + {"Symmetric NAT", "Simetrik NAT"}, + {"Full cone NAT", "Full cone NAT"}, + {"No Descriptors", "Tanımlayıcı Yok"}, + {"Uptime", "Bağlantı süresi"}, + {"Network status", "Ağ durumu"}, + {"Network status v6", "Ağ durumu v6"}, + {"Family", "Aile"}, + {"Tunnel creation success rate", "Tünel oluşturma başarı oranı"}, + {"Received", "Alındı"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Gönderildi"}, + {"Transit", "Transit"}, + {"Data path", "Veri yolu"}, + {"Hidden content. Press on text to see.", "Gizlenmiş içerik. Görmek için yazıya tıklayınız."}, + {"Router Family", "Router Familyası"}, + {"Decline transit tunnels", "Transit tünellerini reddet"}, + {"Accept transit tunnels", "Transit tünellerini kabul et"}, + {"Cancel graceful shutdown", "Düzgün durdurmayı iptal Et"}, + {"Start graceful shutdown", "Düzgün durdurmayı başlat"}, + {"Force shutdown", "Durdurmaya zorla"}, + {"Reload external CSS styles", "Harici CSS stilini yeniden yükle"}, + {"Note: any action done here are not persistent and not changes your config files.", "Not: burada yapılan ayarların hiçbiri kalıcı değildir ve ayar dosyalarınızı değiştirmez."}, + {"Logging level", "Kayıt tutma seviyesi"}, + {"Transit tunnels limit", "Transit tünel limiti"}, + {"Change", "Değiştir"}, + {"Change language", "Dil değiştir"}, + {"no transit tunnels currently built", "kurulmuş bir transit tüneli bulunmamakta"}, + {"SAM disabled", "SAM devre dışı"}, + {"no sessions currently running", "hiçbir oturum şu anda çalışmıyor"}, + {"SAM session not found", "SAM oturumu bulunamadı"}, + {"SAM Session", "SAM oturumu"}, + {"Server Tunnels", "Sunucu Tünelleri"}, + {"Unknown page", "Bilinmeyen sayfa"}, + {"Invalid token", "Geçersiz token"}, + {"SUCCESS", "BAŞARILI"}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d gün", "%d gün"}}, + {"%d hours", {"%d saat", "%d saat"}}, + {"%d minutes", {"%d dakika", "%d dakika"}}, + {"%d seconds", {"%d saniye", "%d saniye"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Turkmen.cpp b/i18n/Turkmen.cpp new file mode 100644 index 00000000..7efb8891 --- /dev/null +++ b/i18n/Turkmen.cpp @@ -0,0 +1,204 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Turkmen localization file + +namespace i2p +{ +namespace i18n +{ +namespace turkmen // language namespace +{ + // language name in lowercase + static std::string language = "turkmen"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n != 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "bina"}, + {"failed", "şowsuz"}, + {"expiring", "möhleti gutarýar"}, + {"established", "işleýär"}, + {"unknown", "näbelli"}, + {"exploratory", "gözleg"}, + {"Purple I2P Webconsole", "Web konsoly Purple I2P"}, + {"i2pd webconsole", "Web konsoly i2pd"}, + {"Main page", "Esasy sahypa"}, + {"Router commands", "Marşrutizator buýruklary"}, + {"Local Destinations", "Ýerli ýerler"}, + {"LeaseSets", "Lizset"}, + {"Tunnels", "Tuneller"}, + {"Transit Tunnels", "Tranzit Tunelleri"}, + {"Transports", "Daşamak"}, + {"I2P tunnels", "I2P tuneller"}, + {"SAM sessions", "SAM Sessiýasy"}, + {"ERROR", "Ýalňyşlyk"}, + {"OK", "OK"}, + {"Testing", "Synag etmek"}, + {"Firewalled", "Daşynda petiklendi"}, + {"Unknown", "Näbelli"}, + {"Proxy", "Proksi"}, + {"Mesh", "MESH-tor"}, + {"Clock skew", "Takyk wagt däl"}, + {"Offline", "Awtonom"}, + {"Symmetric NAT", "Simmetriklik NAT"}, + {"Uptime", "Onlaýn onlaýn sözlügi"}, + {"Network status", "Tor ýagdaýy"}, + {"Network status v6", "Tor ýagdaýy v6"}, + {"Stopping in", "Soň duruň"}, + {"Family", "Maşgala"}, + {"Tunnel creation success rate", "Gurlan teneller üstünlikli gurlan teneller"}, + {"Received", "Alnan"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Ýerleşdirildi"}, + {"Transit", "Tranzit"}, + {"Data path", "Maglumat ýoly"}, + {"Hidden content. Press on text to see.", "Gizlin mazmun. Görkezmek üçin tekste basyň."}, + {"Router Ident", "Marşrutly kesgitleýji"}, + {"Router Family", "Marşrutler maşgalasy"}, + {"Router Caps", "Baýdaklar marşruteri"}, + {"Version", "Wersiýasy"}, + {"Our external address", "Daşarky salgymyz"}, + {"supported", "goldanýar"}, + {"Routers", "Marşrutizatorlar"}, + {"Floodfills", "Fludfillar"}, + {"Client Tunnels", "Müşderi tunelleri"}, + {"Services", "Hyzmatlar"}, + {"Enabled", "Goşuldy"}, + {"Disabled", "Öçürildi"}, + {"Encrypted B33 address", "Şifrlenen B33 salgylar"}, + {"Address registration line", "Hasaba alyş salgysy"}, + {"Domain", "Domen"}, + {"Generate", "Öndürmek"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Bellik: Alnan setir diňe ikinji derejeli domenleri bellige almak üçin ulanylyp bilner (example.i2p). Subýutmalary hasaba almak üçin i2pd ulanyň-tools."}, + {"Address", "Salgysy"}, + {"Type", "Görnüş"}, + {"EncType", "Şifrlemek görnüşi"}, + {"Inbound tunnels", "Gelýän tuneller"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Çykýan tuneller"}, + {"Tags", "Bellikler"}, + {"Incoming", "Gelýän"}, + {"Outgoing", "Çykýan"}, + {"Destination", "Maksat"}, + {"Amount", "Sany"}, + {"Incoming Tags", "Gelýän bellikler"}, + {"Tags sessions", "Sapaklar bellikler"}, + {"Status", "Ýagdaýy"}, + {"Local Destination", "Ýerli maksat"}, + {"Streams", "Strimlary"}, + {"Close stream", "Yap strim"}, + {"I2CP session not found", "I2CP Sessiýa tapylmady"}, + {"I2CP is not enabled", "I2CP goşulmaýar"}, + {"Invalid", "Nädogry"}, + {"Store type", "Ammar görnüşi"}, + {"Expires", "Möhleti gutarýar"}, + {"Non Expired Leases", "Möhleti gutarmady Lizsetlary"}, + {"Gateway", "Derweze"}, + {"TunnelID", "Tuneliň ID"}, + {"EndDate", "Gutarýar"}, + {"Queue size", "Nobatyň ululygy"}, + {"Run peer test", "Synag başlaň"}, + {"Decline transit tunnels", "Tranzit tunellerini ret ediň"}, + {"Accept transit tunnels", "Tranzit tunellerini alyň"}, + {"Cancel graceful shutdown", "Tekiz durmagy ýatyryň"}, + {"Start graceful shutdown", "Tekiz durmak"}, + {"Force shutdown", "Mejbury duralga"}, + {"Reload external CSS styles", "Daşarky CSS stillerini täzeden ýükläň"}, + {"Note: any action done here are not persistent and not changes your config files.", "Bellik: Bu ýerde öndürilen islendik çäre hemişelik däl we konfigurasiýa faýllaryňyzy üýtgetmeýär."}, + {"Logging level", "Giriş derejesi"}, + {"Transit tunnels limit", "Tranzit tunelleriniň çägi"}, + {"Change", "Üýtgetmek"}, + {"Change language", "Dil üýtgetmek"}, + {"no transit tunnels currently built", "gurlan tranzit tunelleri ýok"}, + {"SAM disabled", "SAM öçürilen"}, + {"no sessions currently running", "başlamagyň sessiýalary ýok"}, + {"SAM session not found", "SAM Sessiýa tapylmady"}, + {"SAM Session", "SAM Sessiýa"}, + {"Server Tunnels", "Serwer tunelleri"}, + {"Client Forwards", "Müşderi gönükdirýär"}, + {"Server Forwards", "Serweriň täzeden düzlüleri"}, + {"Unknown page", "Näbelli sahypa"}, + {"Invalid token", "Nädogry token"}, + {"SUCCESS", "Üstünlikli"}, + {"Stream closed", "Strim ýapyk"}, + {"Stream not found or already was closed", "Strim tapylmady ýa-da eýýäm ýapyldy"}, + {"Destination not found", "Niýetlenen ýeri tapylmady"}, + {"StreamID can't be null", "StreamID boş bolup bilmez"}, + {"Return to destination page", "Barmaly nokadynyň nokadyna gaýdyp geliň"}, + {"Back to commands list", "Topar sanawyna dolan"}, + {"Register at reg.i2p", "Reg.i2P-de hasaba duruň"}, + {"Description", "Beýany"}, + {"A bit information about service on domain", "Domendäki hyzmat barada käbir maglumatlar"}, + {"Submit", "Iber"}, + {"Domain can't end with .b32.i2p", "Domain .b32.i2p bilen gutaryp bilmez"}, + {"Domain must end with .i2p", "Domeni .i2p bilen gutarmaly"}, + {"Such destination is not found", "Bu barmaly ýer tapylmady"}, + {"Unknown command", "Näbelli topar"}, + {"Command accepted", "Topar kabul edilýär"}, + {"Proxy error", "Proksi ýalňyşlygy"}, + {"Proxy info", "Proksi maglumat"}, + {"Proxy error: Host not found", "Proksi ýalňyşlygy: Host tapylmady"}, + {"Remote host not found in router's addressbook", "Uzakdaky öý eýesi marşruteriň salgy kitabynda tapylmady"}, + {"You may try to find this host on jump services below", "Aşakdaky böküş hyzmatlarynda bu öý eýesini tapmaga synanyşyp bilersiňiz"}, + {"Invalid request", "Nädogry haýyş"}, + {"Proxy unable to parse your request", "Proksi haýyşyňyzy derňäp bilmeýär"}, + {"Invalid request URI", "Nädogry haýyş URI"}, + {"Can't detect destination host from request", "Haýyşdan barmaly ýerini tapyp bilemok"}, + {"Outproxy failure", "Daşarky proksi ýalňyşlyk"}, + {"Bad outproxy settings", "Daşarky Daşarky proksi sazlamalary nädogry"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Adres %s I2P torunda däl, ýöne daşarky proksi goşulmaýar"}, + {"Unknown outproxy URL", "Näbelli daşarky proksi URL"}, + {"Cannot resolve upstream proxy", "Has ýokary proksi kesgitläp bilmeýär"}, + {"Hostname is too long", "Hoster eýesi ady gaty uzyn"}, + {"Cannot connect to upstream SOCKS proxy", "Ýokary jorap SOCKS proksi bilen birigip bolmaýar"}, + {"Cannot negotiate with SOCKS proxy", "Iň ýokary jorap SOCKS proksi bilen ylalaşyp bilmeýärler"}, + {"CONNECT error", "Bagyr haýyşy säwligi"}, + {"Failed to connect", "Birikdirip bilmedi"}, + {"SOCKS proxy error", "SOCKS proksi ýalňyşlygy"}, + {"Failed to send request to upstream", "Öý eýesi proksi üçin haýyş iberip bilmedi"}, + {"No reply from SOCKS proxy", "Jorap SOCKS proksi serwerinden hiç hili jogap ýok"}, + {"Cannot connect", "Birikdirip bilmedi"}, + {"HTTP out proxy not implemented", "Daşarky HTTP proksi serwerini goldamak amala aşyrylmaýar"}, + {"Cannot connect to upstream HTTP proxy", "Ýokary jorap HTTP proksi bilen birigip bolmaýar"}, + {"Host is down", "Salgy elýeterli däl"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Talap edilýän salgyda birikmäni gurup bilmedim, onlaýn bolup bilmez. Soňra haýyşy soň gaýtalamaga synanyşyň."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d gün", "%d gün"}}, + {"%d hours", {"%d sagat", "%d sagat"}}, + {"%d minutes", {"%d minut", "%d minut"}}, + {"%d seconds", {"%d sekunt", "%d sekunt"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Ukrainian.cpp b/i18n/Ukrainian.cpp new file mode 100644 index 00000000..c1b6c772 --- /dev/null +++ b/i18n/Ukrainian.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Ukrainian localization file + +namespace i2p +{ +namespace i18n +{ +namespace ukrainian // language namespace +{ + // language name in lowercase + static std::string language = "ukrainian"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f КіБ"}, + {"%.2f MiB", "%.2f МіБ"}, + {"%.2f GiB", "%.2f ГіБ"}, + {"building", "будується"}, + {"failed", "невдалий"}, + {"expiring", "завершується"}, + {"established", "працює"}, + {"unknown", "невідомо"}, + {"exploratory", "дослідницький"}, + {"Purple I2P Webconsole", "Веб-консоль Purple I2P"}, + {"i2pd webconsole", "Веб-консоль i2pd"}, + {"Main page", "Головна"}, + {"Router commands", "Команди маршрутизатора"}, + {"Local Destinations", "Локальні Призначення"}, + {"LeaseSets", "Лізсети"}, + {"Tunnels", "Тунелі"}, + {"Transit Tunnels", "Транзитні Тунелі"}, + {"Transports", "Транспорти"}, + {"I2P tunnels", "I2P тунелі"}, + {"SAM sessions", "SAM сесії"}, + {"ERROR", "ПОМИЛКА"}, + {"OK", "OK"}, + {"Testing", "Тестування"}, + {"Firewalled", "Заблоковано ззовні"}, + {"Unknown", "Невідомо"}, + {"Proxy", "Проксі"}, + {"Mesh", "MESH-мережа"}, + {"Clock skew", "Неточний час"}, + {"Offline", "Офлайн"}, + {"Symmetric NAT", "Симетричний NAT"}, + {"Full cone NAT", "Повний NAT"}, + {"No Descriptors", "Немає Описів"}, + {"Uptime", "У мережі"}, + {"Network status", "Мережевий статус"}, + {"Network status v6", "Мережевий статус v6"}, + {"Stopping in", "Зупинка через"}, + {"Family", "Сімейство"}, + {"Tunnel creation success rate", "Успішно побудованих тунелів"}, + {"Total tunnel creation success rate", "Загальна кількість створених тунелів"}, + {"Received", "Отримано"}, + {"%.2f KiB/s", "%.2f КіБ/с"}, + {"Sent", "Відправлено"}, + {"Transit", "Транзит"}, + {"Data path", "Шлях до даних"}, + {"Hidden content. Press on text to see.", "Прихований вміст. Щоб відобразити, натисніть на текст."}, + {"Router Ident", "Ідентифікатор маршрутизатора"}, + {"Router Family", "Сімейство маршрутизатора"}, + {"Router Caps", "Прапорці маршрутизатора"}, + {"Version", "Версія"}, + {"Our external address", "Наша зовнішня адреса"}, + {"supported", "підтримується"}, + {"Routers", "Маршрутизатори"}, + {"Floodfills", "Флудфіли"}, + {"Client Tunnels", "Клієнтські Тунелі"}, + {"Services", "Сервіси"}, + {"Enabled", "Увімкнуто"}, + {"Disabled", "Вимкнуто"}, + {"Encrypted B33 address", "Шифровані B33 адреси"}, + {"Address registration line", "Рядок реєстрації адреси"}, + {"Domain", "Домен"}, + {"Generate", "Згенерувати"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Примітка: отриманий рядок може бути використаний тільки для реєстрації доменів другого рівня (example.i2p). Для реєстрації піддоменів використовуйте i2pd-tools."}, + {"Address", "Адреса"}, + {"Type", "Тип"}, + {"EncType", "ТипШифр"}, + {"Expire LeaseSet", "Завершити LeaseSet"}, + {"Inbound tunnels", "Вхідні тунелі"}, + {"%dms", "%dмс"}, + {"Outbound tunnels", "Вихідні тунелі"}, + {"Tags", "Теги"}, + {"Incoming", "Вхідні"}, + {"Outgoing", "Вихідні"}, + {"Destination", "Призначення"}, + {"Amount", "Кількість"}, + {"Incoming Tags", "Вхідні Теги"}, + {"Tags sessions", "Сесії Тегів"}, + {"Status", "Статус"}, + {"Local Destination", "Локальні Призначення"}, + {"Streams", "Потоки"}, + {"Close stream", "Закрити потік"}, + {"Such destination is not found", "Така точка призначення не знайдена"}, + {"I2CP session not found", "I2CP сесія не знайдена"}, + {"I2CP is not enabled", "I2CP не увікнуто"}, + {"Invalid", "Некоректний"}, + {"Store type", "Тип сховища"}, + {"Expires", "Завершується"}, + {"Non Expired Leases", "Не завершені Lease-и"}, + {"Gateway", "Шлюз"}, + {"TunnelID", "ID тунеля"}, + {"EndDate", "Закінчується"}, + {"floodfill mode is disabled", "режим floodfill вимкнено"}, + {"Queue size", "Розмір черги"}, + {"Run peer test", "Запустити тестування"}, + {"Reload tunnels configuration", "Перезавантажити налаштування тунелів"}, + {"Decline transit tunnels", "Відхиляти транзитні тунелі"}, + {"Accept transit tunnels", "Ухвалювати транзитні тунелі"}, + {"Cancel graceful shutdown", "Скасувати плавну зупинку"}, + {"Start graceful shutdown", "Запустити плавну зупинку"}, + {"Force shutdown", "Примусова зупинка"}, + {"Reload external CSS styles", "Перезавантажити зовнішні стилі CSS"}, + {"Note: any action done here are not persistent and not changes your config files.", "Примітка: будь-яка зроблена тут дія не є постійною та не змінює ваші конфігураційні файли."}, + {"Logging level", "Рівень логування"}, + {"Transit tunnels limit", "Обмеження транзитних тунелів"}, + {"Change", "Змінити"}, + {"Change language", "Змінити мову"}, + {"no transit tunnels currently built", "немає побудованих транзитних тунелів"}, + {"SAM disabled", "SAM вимкнуто"}, + {"no sessions currently running", "немає запущених сесій"}, + {"SAM session not found", "SAM сесія не знайдена"}, + {"SAM Session", "SAM сесія"}, + {"Server Tunnels", "Серверні Тунелі"}, + {"Client Forwards", "Клієнтські Переспрямування"}, + {"Server Forwards", "Серверні Переспрямування"}, + {"Unknown page", "Невідома сторінка"}, + {"Invalid token", "Невірний токен"}, + {"SUCCESS", "УСПІШНО"}, + {"Stream closed", "Потік зачинений"}, + {"Stream not found or already was closed", "Потік не знайдений або вже зачинений"}, + {"Destination not found", "Точка призначення не знайдена"}, + {"StreamID can't be null", "Ідентифікатор потоку не може бути порожнім"}, + {"Return to destination page", "Повернутися на сторінку точки призначення"}, + {"You will be redirected in %d seconds", "Ви будете переадресовані через %d секунд"}, + {"LeaseSet expiration time updated", "Час закінчення LeaseSet оновлено"}, + {"LeaseSet is not found or already expired", "LeaseSet не знайдено або вже закінчився"}, + {"Transit tunnels count must not exceed %d", "Кількість транзитних тунелів не повинна перевищувати %d"}, + {"Back to commands list", "Повернутися до списку команд"}, + {"Register at reg.i2p", "Зареєструвати на reg.i2p"}, + {"Description", "Опис"}, + {"A bit information about service on domain", "Трохи інформації про сервіс на домені"}, + {"Submit", "Надіслати"}, + {"Domain can't end with .b32.i2p", "Домен не може закінчуватися на .b32.i2p"}, + {"Domain must end with .i2p", "Домен повинен закінчуватися на .i2p"}, + {"Unknown command", "Невідома команда"}, + {"Command accepted", "Команда прийнята"}, + {"Proxy error", "Помилка проксі"}, + {"Proxy info", "Інформація проксі"}, + {"Proxy error: Host not found", "Помилка проксі: Адреса не знайдена"}, + {"Remote host not found in router's addressbook", "Віддалена адреса не знайдена в адресній книзі маршрутизатора"}, + {"You may try to find this host on jump services below", "Ви можете спробувати знайти дану адресу на джамп сервісах нижче"}, + {"Invalid request", "Некоректний запит"}, + {"Proxy unable to parse your request", "Проксі не може розібрати ваш запит"}, + {"Addresshelper is not supported", "Адресна книга не підтримується"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "Хост %s вже в адресній книзі маршрутизатора. Будьте обережні: джерело цієї адреси може зашкодити! Натисніть тут, щоб оновити запис: Продовжити."}, + {"Addresshelper forced update rejected", "Адресна книга відхилила примусове оновлення"}, + {"To add host %s in router's addressbook, click here: Continue.", "Щоб додати хост %s в адресі маршрутизатора, натисніть тут: Продовжити."}, + {"Addresshelper request", "Запит на адресну сторінку"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Хост %s доданий в адресну книгу маршрутизатора від помічника. Натисніть тут, щоб продовжити: Продовжити."}, + {"Addresshelper adding", "Адреса додана"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "Хост %s вже в адресній книзі маршрутизатора. Натисніть тут, щоб оновити запис: Продовжити."}, + {"Addresshelper update", "Оновлення адресної книги"}, + {"Invalid request URI", "Некоректний URI запиту"}, + {"Can't detect destination host from request", "Не вдалось визначити адресу призначення з запиту"}, + {"Outproxy failure", "Помилка зовнішнього проксі"}, + {"Bad outproxy settings", "Некоректні налаштування зовнішнього проксі"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Адрес %s не в I2P мережі, але зовнішній проксі не включений"}, + {"Unknown outproxy URL", "Невідомий URL зовнішнього проксі"}, + {"Cannot resolve upstream proxy", "Не вдається визначити висхідний проксі"}, + {"Hostname is too long", "Ім'я вузла надто довге"}, + {"Cannot connect to upstream SOCKS proxy", "Не вдалося підключитися до висхідного SOCKS проксі сервера"}, + {"Cannot negotiate with SOCKS proxy", "Не вдається домовитися з висхідним SOCKS проксі"}, + {"CONNECT error", "Помилка CONNECT запиту"}, + {"Failed to connect", "Не вдалося підключитися"}, + {"SOCKS proxy error", "Помилка SOCKS проксі"}, + {"Failed to send request to upstream", "Не вдалося відправити запит висхідному проксі"}, + {"No reply from SOCKS proxy", "Немає відповіді від SOCKS проксі сервера"}, + {"Cannot connect", "Не вдалося підключитися"}, + {"HTTP out proxy not implemented", "Підтримка зовнішнього HTTP проксі сервера не реалізована"}, + {"Cannot connect to upstream HTTP proxy", "Не вдалося підключитися до висхідного HTTP проксі сервера"}, + {"Host is down", "Вузол недоступний"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Не вдалося встановити з'єднання до запитаного вузла, можливо він не в мережі. Спробуйте повторити запит пізніше."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d день", "%d дня", "%d днів"}}, + {"%d hours", {"%d годину", "%d години", "%d годин"}}, + {"%d minutes", {"%d хвилину", "%d хвилини", "%d хвилин"}}, + {"%d seconds", {"%d секунду", "%d секунди", "%d секунд"}}, + {"", {"", "", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/i18n/Uzbek.cpp b/i18n/Uzbek.cpp new file mode 100644 index 00000000..8e870772 --- /dev/null +++ b/i18n/Uzbek.cpp @@ -0,0 +1,223 @@ +/* +* Copyright (c) 2021-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include +#include +#include "I18N.h" + +// Ukrainian localization file + +namespace i2p +{ +namespace i18n +{ +namespace uzbek // language namespace +{ + // language name in lowercase + static std::string language = "uzbek"; + + // See for language plural forms here: + // https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html + static int plural (int n) { + return n > 1 ? 1 : 0; + } + + static const LocaleStrings strings + { + {"%.2f KiB", "%.2f KiB"}, + {"%.2f MiB", "%.2f MiB"}, + {"%.2f GiB", "%.2f GiB"}, + {"building", "yaratilmoqda"}, + {"failed", "muvaffaqiyatsiz"}, + {"expiring", "muddati tugaydi"}, + {"established", "aloqa o'rnatildi"}, + {"unknown", "noma'lum"}, + {"exploratory", "tadqiqiy"}, + {"Purple I2P Webconsole", "Veb-konsoli Purple I2P"}, + {"i2pd webconsole", "i2pd veb-konsoli"}, + {"Main page", "Asosiy sahifa"}, + {"Router commands", "Router buyruqlari"}, + {"Local Destinations", "Mahalliy joylanishlar"}, + {"LeaseSets", "LeaseSets"}, + {"Tunnels", "Tunnellar"}, + {"Transit Tunnels", "Tranzit Tunellari"}, + {"Transports", "Transportlar"}, + {"I2P tunnels", "I2P tunnellari"}, + {"SAM sessions", "SAM sessiyalari"}, + {"ERROR", "XATO"}, + {"OK", "OK"}, + {"Testing", "Testlash"}, + {"Firewalled", "Xavfsizlik devori bilan himoyalangan"}, + {"Unknown", "Notanish"}, + {"Proxy", "Proksi"}, + {"Mesh", "Mesh To'r"}, + {"Clock skew", "Aniq vaqt emas"}, + {"Offline", "Oflayn"}, + {"Symmetric NAT", "Simmetrik NAT"}, + {"Full cone NAT", "Full cone NAT"}, + {"No Descriptors", "Deskriptorlar yo'q"}, + {"Uptime", "Ish vaqti"}, + {"Network status", "Tarmoq holati"}, + {"Network status v6", "Tarmoq holati v6"}, + {"Stopping in", "Ichida to'xtatish"}, + {"Family", "Oila"}, + {"Tunnel creation success rate", "Tunnel yaratish muvaffaqiyat darajasi"}, + {"Total tunnel creation success rate", "Tunnel yaratishning umumiy muvaffaqiyat darajasi"}, + {"Received", "Qabul qilindi"}, + {"%.2f KiB/s", "%.2f KiB/s"}, + {"Sent", "Yuborilgan"}, + {"Transit", "Tranzit"}, + {"Data path", "Ma'lumotlar joylanishi"}, + {"Hidden content. Press on text to see.", "Yashirin tarkib. Ko'rish uchun matn ustida bosing."}, + {"Router Ident", "Router identifikatori"}, + {"Router Family", "Router oilasi"}, + {"Router Caps", "Router Bayroqlari"}, + {"Version", "Versiya"}, + {"Our external address", "Bizning tashqi manzilimiz"}, + {"supported", "qo'llab-quvvatlanadi"}, + {"Routers", "Routerlar"}, + {"Floodfills", "Floodfills"}, + {"Client Tunnels", "Mijoz Tunellari"}, + {"Services", "Xizmatlar"}, + {"Enabled", "Yoqilgan"}, + {"Disabled", "O'chirilgan"}, + {"Encrypted B33 address", "Shifrlangan B33 manzil"}, + {"Address registration line", "Manzilni ro'yxatga olish liniyasi"}, + {"Domain", "Domen"}, + {"Generate", "Yaratish"}, + {"Note: result string can be used only for registering 2LD domains (example.i2p). For registering subdomains please use i2pd-tools.", "Eslatma: natija satridan faqat 2LD domenlarini ro'yxatdan o'tkazish uchun foydalanish mumkin (example.i2p). Subdomenlarni ro'yxatdan o'tkazish uchun 'i2pd-tools'dan foydalaning."}, + {"Address", "Manzil"}, + {"Type", "Turi"}, + {"EncType", "ShifrlashTuri"}, + {"Expire LeaseSet", "LeaseSet muddati tugaydi"}, + {"Inbound tunnels", "Kirish tunnellari"}, + {"%dms", "%dms"}, + {"Outbound tunnels", "Chiquvchi tunnellar"}, + {"Tags", "Teglar"}, + {"Incoming", "Kiruvchi"}, + {"Outgoing", "Chiquvchi"}, + {"Destination", "Manzilgoh"}, + {"Amount", "Soni"}, + {"Incoming Tags", "Kiruvchi teglar"}, + {"Tags sessions", "Teglar sessiyalari"}, + {"Status", "Holat"}, + {"Local Destination", "Mahalliy joylanish"}, + {"Streams", "Strim"}, + {"Close stream", "Strimni o'chirish"}, + {"Such destination is not found", "Bunday yo'nalish topilmadi"}, + {"I2CP session not found", "I2CP sessiyasi topilmadi"}, + {"I2CP is not enabled", "I2CP yoqilmagan"}, + {"Invalid", "Noto'g'ri"}, + {"Store type", "Saqlash turi"}, + {"Expires", "Muddati tugaydi"}, + {"Non Expired Leases", "Muddati O'tmagan Leases"}, + {"Gateway", "Kirish yo'li"}, + {"TunnelID", "TunnelID"}, + {"EndDate", "Tugash Sanasi"}, + {"floodfill mode is disabled", "floodfill rejimi o'chirilgan"}, + {"Queue size", "Navbat hajmi"}, + {"Run peer test", "Sinovni boshlang"}, + {"Reload tunnels configuration", "Tunnel konfiguratsiyasini qayta yuklash"}, + {"Decline transit tunnels", "Tranzit tunnellarini rad etish"}, + {"Accept transit tunnels", "Tranzit tunnellarni qabul qilish"}, + {"Cancel graceful shutdown", "Yumshoq to'xtashni bekor qilish"}, + {"Start graceful shutdown", "Yumshoq to'xtashni boshlash"}, + {"Force shutdown", "Majburiy to'xtatish"}, + {"Reload external CSS styles", "Tashqi CSS uslublarini qayta yuklang"}, + {"Note: any action done here are not persistent and not changes your config files.", "Eslatma: shu yerda qilingan har qanday harakat doimiy emas va konfiguratsiya fayllarini o'zgartirmaydi."}, + {"Logging level", "Jurnal darajasi"}, + {"Transit tunnels limit", "Tranzit tunellarning chegarasi"}, + {"Change", "O'zgartirish"}, + {"Change language", "Tilni o'zgartirish"}, + {"no transit tunnels currently built", "qurilgan tranzit tunnellari yo'q"}, + {"SAM disabled", "SAM o'chirilgan"}, + {"no sessions currently running", "hech qanday ishlaydigan sessiyalar yo'q"}, + {"SAM session not found", "SAM sessiyasi topilmadi"}, + {"SAM Session", "SAM sessiyasi"}, + {"Server Tunnels", "Server Tunellari"}, + {"Client Forwards", "Mijozlarni Yo'naltirish"}, + {"Server Forwards", "Serverni Yo'naltirish"}, + {"Unknown page", "Noma'lum sahifa"}, + {"Invalid token", "Noto‘g‘ri belgi"}, + {"SUCCESS", "Muvaffaqiyat"}, + {"Stream closed", "Strim yopiq"}, + {"Stream not found or already was closed", "Strim topilmadi yoki allaqachon yopilgan"}, + {"Destination not found", "Yo'nalish topilmadi"}, + {"StreamID can't be null", "StreamID bo'sh bo'lishi mumkin emas"}, + {"Return to destination page", "Manzilgoh sahifasiga qaytish"}, + {"You will be redirected in %d seconds", "Siz %d soniyadan so‘ng boshqa yo‘nalishga yo‘naltirilasiz"}, + {"LeaseSet expiration time updated", "LeaseSet amal qilish muddati yangilandi"}, + {"LeaseSet is not found or already expired", "LeaseSet topilmadi yoki muddati tugagan"}, + {"Transit tunnels count must not exceed %d", "Tranzit tunnellar soni %d dan oshmasligi kerak"}, + {"Back to commands list", "Buyruqlar ro'yxatiga qaytish"}, + {"Register at reg.i2p", "Reg.i2p-da ro'yxatdan o'ting"}, + {"Description", "Tavsif"}, + {"A bit information about service on domain", "Domen xizmatlari haqida bir oz ma'lumot"}, + {"Submit", "Yuborish"}, + {"Domain can't end with .b32.i2p", "Domen .b32.i2p bilan tugashi mumkin emas"}, + {"Domain must end with .i2p", "Domen .i2p bilan tugashi kerak"}, + {"Unknown command", "Noma'lum buyruq"}, + {"Command accepted", "Buyruq qabul qilindi"}, + {"Proxy error", "Proksi xatosi"}, + {"Proxy info", "Proksi ma'lumotlari"}, + {"Proxy error: Host not found", "Proksi xatosi: Xost topilmadi"}, + {"Remote host not found in router's addressbook", "Masofaviy xost yo'riqnoma manzillar kitobida topilmadi"}, + {"You may try to find this host on jump services below", "Siz xost quyida o'tish xizmatlari orqali topishga harakat qilishingiz mumkin"}, + {"Invalid request", "Noto‘g‘ri so‘rov"}, + {"Proxy unable to parse your request", "Proksi sizning so'rovingizni aniqlab ololmayapti"}, + {"Addresshelper is not supported", "Addresshelper qo'llab-quvvatlanmaydi"}, + {"Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", "%s xosti allaqachon routerning manzillar kitobida. Ehtiyot bo'ling: bu URL manbasi zararli bo'lishi mumkin! Yozuvni yangilash uchun bu yerni bosing: Davom etish."}, + {"Addresshelper forced update rejected", "Addresshelperni majburiy yangilash rad etildi"}, + {"To add host %s in router's addressbook, click here: Continue.", "Routerning manzillar kitobiga %s xostini qo'shish uchun bu yerni bosing: Davom etish."}, + {"Addresshelper request", "Addresshelper so'rovi"}, + {"Host %s added to router's addressbook from helper. Click here to proceed: Continue.", "Yordamchidan router manzillar kitobiga %s xost qo‘shildi. Davom etish uchun bu yerga bosing: Davom etish."}, + {"Addresshelper adding", "Addresshelperni qo'shish"}, + {"Host %s is already in router's addressbook. Click here to update record: Continue.", "%s xosti allaqachon routerning manzillar kitobida. Yozuvni yangilash uchun shu yerni bosing: Davom etish."}, + {"Addresshelper update", "Addresshelperni yangilash"}, + {"Invalid request URI", "Noto'g'ri URI so'rovi"}, + {"Can't detect destination host from request", "So‘rov orqali manzil xostini aniqlab bo'lmayapti"}, + {"Outproxy failure", "Tashqi proksi muvaffaqiyatsizligi"}, + {"Bad outproxy settings", "Noto'g'ri tashqi proksi-server sozlamalari"}, + {"Host %s is not inside I2P network, but outproxy is not enabled", "Xost %s I2P tarmog'ida emas, lekin tashqi proksi yoqilmagan"}, + {"Unknown outproxy URL", "Noma'lum outproxy URL"}, + {"Cannot resolve upstream proxy", "Yuqoridagi 'proxy-server'ni aniqlab olib bolmayapti"}, + {"Hostname is too long", "Xost nomi juda uzun"}, + {"Cannot connect to upstream SOCKS proxy", "Yuqori 'SOCKS proxy'ga ulanib bo'lmayapti"}, + {"Cannot negotiate with SOCKS proxy", "'SOCKS proxy' bilan muzokara olib bo'lmaydi"}, + {"CONNECT error", "CONNECT xatosi"}, + {"Failed to connect", "Ulanib bo'lmayapti"}, + {"SOCKS proxy error", "'SOCKS proxy' xatosi"}, + {"Failed to send request to upstream", "Yuqori proksi-serveriga so'rovni uborib bo'lmadi"}, + {"No reply from SOCKS proxy", "'SOCKS proxy'dan javob yo'q"}, + {"Cannot connect", "Ulanib bo'lmaydi"}, + {"HTTP out proxy not implemented", "Tashqi HTTP proksi-serverni qo'llab-quvvatlash amalga oshirilmagan"}, + {"Cannot connect to upstream HTTP proxy", "Yuqori 'HTTP proxy'ga ulanib bo'lmayapti"}, + {"Host is down", "Xost ishlamayapti"}, + {"Can't create connection to requested host, it may be down. Please try again later.", "Talab qilingan xost bilan aloqa o'rnatilmadi, u ishlamay qolishi mumkin. Iltimos keyinroq qayta urinib ko'ring."}, + {"", ""}, + }; + + static std::map> plurals + { + {"%d days", {"%d kun", "%d kun"}}, + {"%d hours", {"%d soat", "%d soat"}}, + {"%d minutes", {"%d daqiqa", "%d daqiqa"}}, + {"%d seconds", {"%d soniya", "%d soniya"}}, + {"", {"", ""}}, + }; + + std::shared_ptr GetLocale() + { + return std::make_shared(language, strings, plurals, [] (int n)->int { return plural(n); }); + } + +} // language +} // i18n +} // i2p diff --git a/libi2pd/Base.cpp b/libi2pd/Base.cpp index f80f2751..bc9da4fb 100644 --- a/libi2pd/Base.cpp +++ b/libi2pd/Base.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include @@ -7,7 +15,8 @@ namespace i2p { namespace data { - static const char T32[32] = { + static constexpr char T32[32] = + { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', @@ -18,7 +27,7 @@ namespace data { return T32; } - + static void iT64Build(void); /* @@ -29,34 +38,33 @@ namespace data * Direct Substitution Table */ - static const char T64[64] = { - 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', - 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', - 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', - 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', - 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', - 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', - 'w', 'x', 'y', 'z', '0', '1', '2', '3', - '4', '5', '6', '7', '8', '9', '-', '~' + static constexpr char T64[64] = + { + 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', + 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', + 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', + 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', + 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', + 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', + 'w', 'x', 'y', 'z', '0', '1', '2', '3', + '4', '5', '6', '7', '8', '9', '-', '~' }; const char * GetBase64SubstitutionTable () { return T64; } - + /* * Reverse Substitution Table (built in run time) */ - static char iT64[256]; static int isFirstTime = 1; /* * Padding */ - - static char P64 = '='; + static constexpr char P64 = '='; /* * @@ -66,163 +74,143 @@ namespace data * Converts binary encoded data to BASE64 format. * */ - - size_t /* Number of bytes in the encoded buffer */ - ByteStreamToBase64 ( - const uint8_t * InBuffer, /* Input buffer, binary data */ - size_t InCount, /* Number of bytes in the input buffer */ - char * OutBuffer, /* output buffer */ - size_t len /* length of output buffer */ + std::string ByteStreamToBase64 (// base64 encoded string + const uint8_t * InBuffer, // Input buffer, binary data + size_t InCount // Number of bytes in the input buffer ) - { unsigned char * ps; - unsigned char * pd; unsigned char acc_1; unsigned char acc_2; int i; int n; int m; - size_t outCount; ps = (unsigned char *)InBuffer; - n = InCount/3; - m = InCount%3; - if (!m) - outCount = 4*n; - else - outCount = 4*(n+1); - if (outCount > len) return 0; - pd = (unsigned char *)OutBuffer; - for ( i = 0; i>= 2; /* base64 digit #1 */ - *pd++ = T64[acc_1]; - acc_1 = *ps++; - acc_2 |= acc_1 >> 4; /* base64 digit #2 */ - *pd++ = T64[acc_2]; - acc_1 &= 0x0f; - acc_1 <<=2; - acc_2 = *ps++; - acc_1 |= acc_2>>6; /* base64 digit #3 */ - *pd++ = T64[acc_1]; - acc_2 &= 0x3f; /* base64 digit #4 */ - *pd++ = T64[acc_2]; + n = InCount / 3; + m = InCount % 3; + size_t outCount = m ? (4 * (n + 1)) : (4 * n); + + std::string out; + out.reserve (outCount); + for ( i = 0; i < n; i++ ) + { + acc_1 = *ps++; + acc_2 = (acc_1 << 4) & 0x30; + acc_1 >>= 2; // base64 digit #1 + out.push_back (T64[acc_1]); + acc_1 = *ps++; + acc_2 |= acc_1 >> 4; // base64 digit #2 + out.push_back (T64[acc_2]); + acc_1 &= 0x0f; + acc_1 <<= 2; + acc_2 = *ps++; + acc_1 |= acc_2 >> 6; // base64 digit #3 + out.push_back (T64[acc_1]); + acc_2 &= 0x3f; // base64 digit #4 + out.push_back (T64[acc_2]); } - if ( m == 1 ){ - acc_1 = *ps++; - acc_2 = (acc_1<<4)&0x3f; /* base64 digit #2 */ - acc_1 >>= 2; /* base64 digit #1 */ - *pd++ = T64[acc_1]; - *pd++ = T64[acc_2]; - *pd++ = P64; - *pd++ = P64; + if ( m == 1 ) + { + acc_1 = *ps++; + acc_2 = (acc_1 << 4) & 0x3f; // base64 digit #2 + acc_1 >>= 2; // base64 digit #1 + out.push_back (T64[acc_1]); + out.push_back (T64[acc_2]); + out.push_back (P64); + out.push_back (P64); } - else if ( m == 2 ){ - acc_1 = *ps++; - acc_2 = (acc_1<<4)&0x3f; - acc_1 >>= 2; /* base64 digit #1 */ - *pd++ = T64[acc_1]; - acc_1 = *ps++; - acc_2 |= acc_1 >> 4; /* base64 digit #2 */ - *pd++ = T64[acc_2]; - acc_1 &= 0x0f; - acc_1 <<=2; /* base64 digit #3 */ - *pd++ = T64[acc_1]; - *pd++ = P64; + else if ( m == 2 ) + { + acc_1 = *ps++; + acc_2 = (acc_1 << 4) & 0x3f; + acc_1 >>= 2; // base64 digit #1 + out.push_back (T64[acc_1]); + acc_1 = *ps++; + acc_2 |= acc_1 >> 4; // base64 digit #2 + out.push_back (T64[acc_2]); + acc_1 &= 0x0f; + acc_1 <<= 2; // base64 digit #3 + out.push_back (T64[acc_1]); + out.push_back (P64); } - return outCount; - } - + return out; + } + /* * * Base64ToByteStream * ------------------ * - * Converts BASE64 encoded data to binary format. If input buffer is + * Converts BASE64 encoded string to binary format. If input buffer is * not properly padded, buffer of negative length is returned * */ - - size_t /* Number of output bytes */ - Base64ToByteStream ( - const char * InBuffer, /* BASE64 encoded buffer */ - size_t InCount, /* Number of input bytes */ - uint8_t * OutBuffer, /* output buffer length */ - size_t len /* length of output buffer */ + size_t Base64ToByteStream ( // Number of output bytes + std::string_view base64Str, // BASE64 encoded string + uint8_t * OutBuffer, // output buffer length + size_t len // length of output buffer ) { - unsigned char * ps; unsigned char * pd; unsigned char acc_1; unsigned char acc_2; - int i; - int n; - int m; - size_t outCount; + size_t outCount; + + if (base64Str.empty () || base64Str[0] == P64) return 0; + auto d = std::div (base64Str.length (), 4); + if (!d.rem) + outCount = 3 * d.quot; + else + return 0; if (isFirstTime) iT64Build(); - n = InCount/4; - m = InCount%4; - if (InCount && !m) - outCount = 3*n; - else { - outCount = 0; - return 0; - } - ps = (unsigned char *)(InBuffer + InCount - 1); - while ( *ps-- == P64 ) outCount--; - ps = (unsigned char *)InBuffer; - - if (outCount > len) return -1; + auto pos = base64Str.find_last_not_of (P64); + if (pos == base64Str.npos) return 0; + outCount -= (base64Str.length () - pos - 1); + if (outCount > len) return 0; + + auto ps = base64Str.begin (); pd = OutBuffer; auto endOfOutBuffer = OutBuffer + outCount; - for ( i = 0; i < n; i++ ){ - acc_1 = iT64[*ps++]; - acc_2 = iT64[*ps++]; - acc_1 <<= 2; - acc_1 |= acc_2>>4; - *pd++ = acc_1; - if (pd >= endOfOutBuffer) break; + for (int i = 0; i < d.quot; i++) + { + acc_1 = iT64[int(*ps++)]; + acc_2 = iT64[int(*ps++)]; + acc_1 <<= 2; + acc_1 |= acc_2 >> 4; + *pd++ = acc_1; + if (pd >= endOfOutBuffer) + break; - acc_2 <<= 4; - acc_1 = iT64[*ps++]; - acc_2 |= acc_1 >> 2; - *pd++ = acc_2; - if (pd >= endOfOutBuffer) break; + acc_2 <<= 4; + acc_1 = iT64[int(*ps++)]; + acc_2 |= acc_1 >> 2; + *pd++ = acc_2; + if (pd >= endOfOutBuffer) + break; - acc_2 = iT64[*ps++]; - acc_2 |= acc_1 << 6; - *pd++ = acc_2; + acc_2 = iT64[int(*ps++)]; + acc_2 |= acc_1 << 6; + *pd++ = acc_2; } return outCount; - } - - size_t Base64EncodingBufferSize (const size_t input_size) + } + + std::string ToBase64Standard (std::string_view in) { - auto d = div (input_size, 3); - if (d.rem) d.quot++; - return 4*d.quot; - } - - std::string ToBase64Standard (const std::string& in) - { - auto len = Base64EncodingBufferSize (in.length ()); - char * str = new char[len+1]; - auto l = ByteStreamToBase64 ((const uint8_t *)in.c_str (), in.length (), str, len); - str[l] = 0; + auto str = ByteStreamToBase64 ((const uint8_t *)in.data (), in.length ()); // replace '-' by '+' and '~' by '/' - for (size_t i = 0; i < l; i++) - if (str[i] == '-') str[i] = '+'; - else if (str[i] == '~') str[i] = '/'; - std::string s(str); - delete[] str; - return s; + for (auto& ch: str) + if (ch == '-') + ch = '+'; + else if (ch == '~') + ch = '/'; + return str; } /* @@ -236,20 +224,19 @@ namespace data static void iT64Build() { - int i; + int i; isFirstTime = 0; - for ( i=0; i<256; i++ ) iT64[i] = -1; - for ( i=0; i<64; i++ ) iT64[(int)T64[i]] = i; + for ( i = 0; i < 256; i++ ) iT64[i] = -1; + for ( i = 0; i < 64; i++ ) iT64[(int)T64[i]] = i; iT64[(int)P64] = 0; } - size_t Base32ToByteStream (const char * inBuf, size_t len, uint8_t * outBuf, size_t outLen) + size_t Base32ToByteStream (std::string_view base32Str, uint8_t * outBuf, size_t outLen) { - int tmp = 0, bits = 0; + unsigned int tmp = 0, bits = 0; size_t ret = 0; - for (size_t i = 0; i < len; i++) + for (auto ch: base32Str) { - char ch = inBuf[i]; if (ch >= '2' && ch <= '7') // digit ch = (ch - '2') + 26; // 26 means a-z else if (ch >= 'a' && ch <= 'z') @@ -269,13 +256,15 @@ namespace data tmp <<= 5; } return ret; - } - - size_t ByteStreamToBase32 (const uint8_t * inBuf, size_t len, char * outBuf, size_t outLen) + } + + std::string ByteStreamToBase32 (const uint8_t * inBuf, size_t len) { - size_t ret = 0, pos = 1; - int bits = 8, tmp = inBuf[0]; - while (ret < outLen && (bits > 0 || pos < len)) + std::string out; + out.reserve ((len * 8 + 4) / 5); + size_t pos = 1; + unsigned int bits = 8, tmp = inBuf[0]; + while (bits > 0 || pos < len) { if (bits < 5) { @@ -295,11 +284,9 @@ namespace data bits -= 5; int ind = (tmp >> bits) & 0x1F; - outBuf[ret] = (ind < 26) ? (ind + 'a') : ((ind - 26) + '2'); - ret++; + out.push_back ((ind < 26) ? (ind + 'a') : ((ind - 26) + '2')); } - return ret; - } + return out; + } } } - diff --git a/libi2pd/Base.h b/libi2pd/Base.h index a273f468..945dc8b3 100644 --- a/libi2pd/Base.h +++ b/libi2pd/Base.h @@ -1,26 +1,51 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef BASE_H__ #define BASE_H__ #include #include -#include +#include +#include + +namespace i2p +{ +namespace data +{ + std::string ByteStreamToBase64 (const uint8_t * InBuffer, size_t InCount); + size_t Base64ToByteStream (std::string_view base64Str, uint8_t * OutBuffer, size_t len); -namespace i2p { -namespace data { - size_t ByteStreamToBase64 (const uint8_t * InBuffer, size_t InCount, char * OutBuffer, size_t len); - size_t Base64ToByteStream (const char * InBuffer, size_t InCount, uint8_t * OutBuffer, size_t len ); const char * GetBase32SubstitutionTable (); const char * GetBase64SubstitutionTable (); + constexpr bool IsBase64 (char ch) + { + return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z') || (ch >= '0' && ch <= '9') || ch == '-' || ch == '~'; + } - size_t Base32ToByteStream (const char * inBuf, size_t len, uint8_t * outBuf, size_t outLen); - size_t ByteStreamToBase32 (const uint8_t * InBuf, size_t len, char * outBuf, size_t outLen); + size_t Base32ToByteStream (std::string_view base32Str, uint8_t * outBuf, size_t outLen); + std::string ByteStreamToBase32 (const uint8_t * inBuf, size_t len); + constexpr bool IsBase32 (char ch) + { + return (ch >= 'a' && ch <= 'z') || (ch >= '2' && ch <= '7'); + } - /** - Compute the size for a buffer to contain encoded base64 given that the size of the input is input_size bytes - */ - size_t Base64EncodingBufferSize(const size_t input_size); - - std::string ToBase64Standard (const std::string& in); // using standard table, for Proxy-Authorization + /** + * Compute the size for a buffer to contain encoded base64 given that the size of the input is input_size bytes + */ + inline size_t Base64EncodingBufferSize(size_t input_size) + { + auto d = std::div (input_size, 3); + if (d.rem) d.quot++; + return 4 * d.quot; + } + + std::string ToBase64Standard (std::string_view in); // using standard table, for Proxy-Authorization } // data } // i2p diff --git a/libi2pd/Blinding.cpp b/libi2pd/Blinding.cpp new file mode 100644 index 00000000..a661b428 --- /dev/null +++ b/libi2pd/Blinding.cpp @@ -0,0 +1,334 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include // for crc32 +#include +#include +#include +#include +#include "Base.h" +#include "Crypto.h" +#include "Log.h" +#include "Timestamp.h" +#include "I2PEndian.h" +#include "Ed25519.h" +#include "Signature.h" +#include "Blinding.h" + +namespace i2p +{ +namespace data +{ + static EC_POINT * BlindPublicKeyECDSA (const EC_GROUP * group, const EC_POINT * pub, const uint8_t * seed) + { + BN_CTX * ctx = BN_CTX_new (); + BN_CTX_start (ctx); + BIGNUM * q = BN_CTX_get (ctx); + EC_GROUP_get_order (group, q, ctx); + // calculate alpha = seed mod q + BIGNUM * alpha = BN_CTX_get (ctx); + BN_bin2bn (seed, 64, alpha); // seed is in BigEndian + BN_mod (alpha, alpha, q, ctx); // % q + // A' = BLIND_PUBKEY(A, alpha) = A + DERIVE_PUBLIC(alpha) + auto p = EC_POINT_new (group); + EC_POINT_mul (group, p, alpha, nullptr, nullptr, ctx); // B*alpha + EC_POINT_add (group, p, pub, p, ctx); // pub + B*alpha + BN_CTX_end (ctx); + BN_CTX_free (ctx); + return p; + } + + static void BlindPrivateKeyECDSA (const EC_GROUP * group, const BIGNUM * priv, const uint8_t * seed, BIGNUM * blindedPriv) + { + BN_CTX * ctx = BN_CTX_new (); + BN_CTX_start (ctx); + BIGNUM * q = BN_CTX_get (ctx); + EC_GROUP_get_order (group, q, ctx); + // calculate alpha = seed mod q + BIGNUM * alpha = BN_CTX_get (ctx); + BN_bin2bn (seed, 64, alpha); // seed is in BigEndian + BN_mod (alpha, alpha, q, ctx); // % q + BN_add (alpha, alpha, priv); // alpha = alpha + priv + // a' = BLIND_PRIVKEY(a, alpha) = (a + alpha) mod q + BN_mod (blindedPriv, alpha, q, ctx); // % q + BN_CTX_end (ctx); + BN_CTX_free (ctx); + } + + static void BlindEncodedPublicKeyECDSA (size_t publicKeyLen, const EC_GROUP * group, const uint8_t * pub, const uint8_t * seed, uint8_t * blindedPub) + { + BIGNUM * x = BN_bin2bn (pub, publicKeyLen/2, NULL); + BIGNUM * y = BN_bin2bn (pub + publicKeyLen/2, publicKeyLen/2, NULL); + EC_POINT * p = EC_POINT_new (group); + EC_POINT_set_affine_coordinates_GFp (group, p, x, y, NULL); + EC_POINT * p1 = BlindPublicKeyECDSA (group, p, seed); + EC_POINT_free (p); + EC_POINT_get_affine_coordinates_GFp (group, p1, x, y, NULL); + EC_POINT_free (p1); + i2p::crypto::bn2buf (x, blindedPub, publicKeyLen/2); + i2p::crypto::bn2buf (y, blindedPub + publicKeyLen/2, publicKeyLen/2); + BN_free (x); BN_free (y); + } + + static void BlindEncodedPrivateKeyECDSA (size_t publicKeyLen, const EC_GROUP * group, const uint8_t * priv, const uint8_t * seed, uint8_t * blindedPriv, uint8_t * blindedPub) + { + BIGNUM * a = BN_bin2bn (priv, publicKeyLen/2, NULL); + BIGNUM * a1 = BN_new (); + BlindPrivateKeyECDSA (group, a, seed, a1); + BN_free (a); + i2p::crypto::bn2buf (a1, blindedPriv, publicKeyLen/2); + auto p = EC_POINT_new (group); + BN_CTX * ctx = BN_CTX_new (); + EC_POINT_mul (group, p, a1, nullptr, nullptr, ctx); // B*a1 + BN_CTX_free (ctx); + BN_free (a1); + BIGNUM * x = BN_new(), * y = BN_new(); + EC_POINT_get_affine_coordinates_GFp (group, p, x, y, NULL); + EC_POINT_free (p); + i2p::crypto::bn2buf (x, blindedPub, publicKeyLen/2); + i2p::crypto::bn2buf (y, blindedPub + publicKeyLen/2, publicKeyLen/2); + BN_free (x); BN_free (y); + } + + template + static size_t BlindECDSA (i2p::data::SigningKeyType sigType, const uint8_t * key, const uint8_t * seed, Fn blind, Args&&...args) + // blind is BlindEncodedPublicKeyECDSA or BlindEncodedPrivateKeyECDSA + { + size_t publicKeyLength = 0; + EC_GROUP * group = nullptr; + switch (sigType) + { + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256: + { + publicKeyLength = i2p::crypto::ECDSAP256_KEY_LENGTH; + group = EC_GROUP_new_by_curve_name (NID_X9_62_prime256v1); + break; + } + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384: + { + publicKeyLength = i2p::crypto::ECDSAP384_KEY_LENGTH; + group = EC_GROUP_new_by_curve_name (NID_secp384r1); + break; + } + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521: + { + publicKeyLength = i2p::crypto::ECDSAP521_KEY_LENGTH; + group = EC_GROUP_new_by_curve_name (NID_secp521r1); + break; + } + default: + LogPrint (eLogError, "Blinding: Signature type ", (int)sigType, " is not ECDSA"); + } + if (group) + { + blind (publicKeyLength, group, key, seed, std::forward(args)...); + EC_GROUP_free (group); + } + return publicKeyLength; + } + +//---------------------------------------------------------- + + const uint8_t B33_TWO_BYTES_SIGTYPE_FLAG = 0x01; + // const uint8_t B33_PER_SECRET_FLAG = 0x02; // not used for now + const uint8_t B33_PER_CLIENT_AUTH_FLAG = 0x04; + + BlindedPublicKey::BlindedPublicKey (std::shared_ptr identity, bool clientAuth): + m_IsClientAuth (clientAuth) + { + if (!identity) return; + auto len = identity->GetSigningPublicKeyLen (); + m_PublicKey.resize (len); + memcpy (m_PublicKey.data (), identity->GetSigningPublicKeyBuffer (), len); + m_SigType = identity->GetSigningKeyType (); + if (m_SigType == i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519) + m_BlindedSigType = i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519; // 7 -> 11 + else + m_BlindedSigType = m_SigType; + } + + BlindedPublicKey::BlindedPublicKey (std::string_view b33): + m_SigType (0) // 0 means invalid, we can't blind DSA, set it later + { + uint8_t addr[40]; // TODO: define length from b33 + size_t l = i2p::data::Base32ToByteStream (b33, addr, 40); + if (l < 32) + { + LogPrint (eLogError, "Blinding: Malformed b33 ", b33); + return; + } + uint32_t checksum = crc32 (0, addr + 3, l - 3); + // checksum is Little Endian + addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16); + uint8_t flags = addr[0]; + size_t offset = 1; + if (flags & B33_TWO_BYTES_SIGTYPE_FLAG) // two bytes signatures + { + m_SigType = bufbe16toh (addr + offset); offset += 2; + m_BlindedSigType = bufbe16toh (addr + offset); offset += 2; + } + else // one byte sig + { + m_SigType = addr[offset]; offset++; + m_BlindedSigType = addr[offset]; offset++; + } + m_IsClientAuth = flags & B33_PER_CLIENT_AUTH_FLAG; + + std::unique_ptr blindedVerifier (i2p::data::IdentityEx::CreateVerifier (m_SigType)); + if (blindedVerifier) + { + auto len = blindedVerifier->GetPublicKeyLen (); + if (offset + len <= l) + { + m_PublicKey.resize (len); + memcpy (m_PublicKey.data (), addr + offset, len); + } + else + LogPrint (eLogError, "Blinding: Public key in b33 address is too short for signature type ", (int)m_SigType); + } + else + LogPrint (eLogError, "Blinding: Unknown signature type ", (int)m_SigType, " in b33"); + } + + std::string BlindedPublicKey::ToB33 () const + { + if (m_PublicKey.size () > 32) return ""; // assume 25519 + uint8_t addr[35]; + uint8_t flags = 0; + if (m_IsClientAuth) flags |= B33_PER_CLIENT_AUTH_FLAG; + addr[0] = flags; // flags + addr[1] = m_SigType; // sig type + addr[2] = m_BlindedSigType; // blinded sig type + memcpy (addr + 3, m_PublicKey.data (), m_PublicKey.size ()); + uint32_t checksum = crc32 (0, addr + 3, m_PublicKey.size ()); + // checksum is Little Endian + addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16); + return ByteStreamToBase32 (addr, m_PublicKey.size () + 3); + } + + void BlindedPublicKey::GetCredential (uint8_t * credential) const + { + // A = destination's signing public key + // stA = signature type of A, 2 bytes big endian + uint16_t stA = htobe16 (GetSigType ()); + // stA1 = signature type of blinded A, 2 bytes big endian + uint16_t stA1 = htobe16 (GetBlindedSigType ()); + // credential = H("credential", A || stA || stA1) + H ("credential", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, credential); + } + + void BlindedPublicKey::GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const + { + uint8_t credential[32]; + GetCredential (credential); + // subcredential = H("subcredential", credential || blindedPublicKey) + H ("subcredential", { {credential, 32}, {blinded, len} }, subcredential); + } + + void BlindedPublicKey::GenerateAlpha (const char * date, uint8_t * seed) const + { + uint16_t stA = htobe16 (GetSigType ()), stA1 = htobe16 (GetBlindedSigType ()); + uint8_t salt[32]; + //seed = HKDF(H("I2PGenerateAlpha", keydata), datestring || secret, "i2pblinding1", 64) + H ("I2PGenerateAlpha", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, salt); + i2p::crypto::HKDF (salt, (const uint8_t *)date, 8, "i2pblinding1", seed); + } + + size_t BlindedPublicKey::GetBlindedKey (const char * date, uint8_t * blindedKey) const + { + uint8_t seed[64]; + GenerateAlpha (date, seed); + + size_t publicKeyLength = 0; + switch (m_SigType) + { + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256: + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384: + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521: + publicKeyLength = BlindECDSA (m_SigType, GetPublicKey (), seed, BlindEncodedPublicKeyECDSA, blindedKey); + break; + case i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: + case i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519: + i2p::crypto::GetEd25519 ()->BlindPublicKey (GetPublicKey (), seed, blindedKey); + publicKeyLength = i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; + break; + default: + LogPrint (eLogError, "Blinding: Can't blind signature type ", (int)m_SigType); + } + return publicKeyLength; + } + + size_t BlindedPublicKey::BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const + { + uint8_t seed[64]; + GenerateAlpha (date, seed); + size_t publicKeyLength = 0; + switch (m_SigType) + { + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256: + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384: + case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521: + publicKeyLength = BlindECDSA (m_SigType, priv, seed, BlindEncodedPrivateKeyECDSA, blindedPriv, blindedPub); + break; + case i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: + i2p::crypto::GetEd25519 ()->BlindPrivateKey (priv, seed, blindedPriv, blindedPub); + publicKeyLength = i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; + break; + case i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519: + { + uint8_t exp[64]; + i2p::crypto::Ed25519::ExpandPrivateKey (priv, exp); + i2p::crypto::GetEd25519 ()->BlindPrivateKey (exp, seed, blindedPriv, blindedPub); + publicKeyLength = i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; + break; + } + default: + LogPrint (eLogError, "Blinding: Can't blind signature type ", (int)m_SigType); + } + return publicKeyLength; + } + + void BlindedPublicKey::H (const std::string& p, const std::vector >& bufs, uint8_t * hash) const + { + SHA256_CTX ctx; + SHA256_Init (&ctx); + SHA256_Update (&ctx, p.c_str (), p.length ()); + for (const auto& it: bufs) + SHA256_Update (&ctx, it.first, it.second); + SHA256_Final (hash, &ctx); + } + + i2p::data::IdentHash BlindedPublicKey::GetStoreHash (const char * date) const + { + i2p::data::IdentHash hash; + uint8_t blinded[128]; + size_t publicKeyLength = 0; + if (date) + publicKeyLength = GetBlindedKey (date, blinded); + else + { + char currentDate[9]; + i2p::util::GetCurrentDate (currentDate); + publicKeyLength = GetBlindedKey (currentDate, blinded); + } + if (publicKeyLength) + { + auto stA1 = htobe16 (m_BlindedSigType); + SHA256_CTX ctx; + SHA256_Init (&ctx); + SHA256_Update (&ctx, (const uint8_t *)&stA1, 2); + SHA256_Update (&ctx, blinded, publicKeyLength); + SHA256_Final ((uint8_t *)hash, &ctx); + } + else + LogPrint (eLogError, "Blinding: Blinded key type ", (int)m_BlindedSigType, " is not supported"); + return hash; + } + +} +} diff --git a/libi2pd/Blinding.h b/libi2pd/Blinding.h new file mode 100644 index 00000000..fc11f613 --- /dev/null +++ b/libi2pd/Blinding.h @@ -0,0 +1,56 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef BLINDING_H__ +#define BLINDING_H__ + +#include +#include +#include +#include +#include "Identity.h" + +namespace i2p +{ +namespace data +{ + class BlindedPublicKey // for encrypted LS2 + { + public: + + BlindedPublicKey (std::shared_ptr identity, bool clientAuth = false); + BlindedPublicKey (std::string_view b33); // from b33 without .b32.i2p + std::string ToB33 () const; + + const uint8_t * GetPublicKey () const { return m_PublicKey.data (); }; + size_t GetPublicKeyLen () const { return m_PublicKey.size (); }; + SigningKeyType GetSigType () const { return m_SigType; }; + SigningKeyType GetBlindedSigType () const { return m_BlindedSigType; }; + bool IsValid () const { return GetSigType (); }; // signature type 0 means invalid + + void GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const; // 32 bytes + size_t GetBlindedKey (const char * date, uint8_t * blindedKey) const; // date is 8 chars "YYYYMMDD", return public key length + size_t BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const; // date is 8 chars "YYYYMMDD", return public key length + i2p::data::IdentHash GetStoreHash (const char * date = nullptr) const; // date is 8 chars "YYYYMMDD", use current if null + + private: + + void GetCredential (uint8_t * credential) const; // 32 bytes + void GenerateAlpha (const char * date, uint8_t * seed) const; // 64 bytes, date is 8 chars "YYYYMMDD" + void H (const std::string& p, const std::vector >& bufs, uint8_t * hash) const; + + private: + + std::vector m_PublicKey; + i2p::data::SigningKeyType m_SigType, m_BlindedSigType; + bool m_IsClientAuth = false; + }; +} +} + +#endif diff --git a/libi2pd/BloomFilter.cpp b/libi2pd/BloomFilter.cpp deleted file mode 100644 index b92039df..00000000 --- a/libi2pd/BloomFilter.cpp +++ /dev/null @@ -1,69 +0,0 @@ -#include "BloomFilter.h" -#include "I2PEndian.h" -#include -#include - -namespace i2p -{ -namespace util -{ - - /** @brief decaying bloom filter implementation */ - class DecayingBloomFilter : public IBloomFilter - { - public: - - DecayingBloomFilter(const std::size_t size) - { - m_Size = size; - m_Data = new uint8_t[size]; - } - - /** @brief implements IBloomFilter::~IBloomFilter */ - ~DecayingBloomFilter() - { - delete [] m_Data; - } - - /** @brief implements IBloomFilter::Add */ - bool Add(const uint8_t * data, std::size_t len) - { - std::size_t idx; - uint8_t mask; - Get(data, len, idx, mask); - if(m_Data[idx] & mask) return false; // filter hit - m_Data[idx] |= mask; - return true; - } - - /** @brief implements IBloomFilter::Decay */ - void Decay() - { - // reset bloom filter buffer - memset(m_Data, 0, m_Size); - } - - private: - /** @brief get bit index for for data */ - void Get(const uint8_t * data, std::size_t len, std::size_t & idx, uint8_t & bm) - { - bm = 1; - uint8_t digest[32]; - // TODO: use blake2 because it's faster - SHA256(data, len, digest); - uint64_t i = buf64toh(digest); - idx = i % m_Size; - bm <<= (i % 8); - } - - uint8_t * m_Data; - std::size_t m_Size; - }; - - - BloomFilterPtr BloomFilter(std::size_t capacity) - { - return std::make_shared(capacity); - } -} -} diff --git a/libi2pd/BloomFilter.h b/libi2pd/BloomFilter.h deleted file mode 100644 index 2745fbf5..00000000 --- a/libi2pd/BloomFilter.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef BLOOM_FILTER_H_ -#define BLOOM_FILTER_H_ -#include -#include - -namespace i2p -{ -namespace util -{ - - /** @brief interface for bloom filter */ - struct IBloomFilter - { - - /** @brief destructor */ - virtual ~IBloomFilter() {}; - /** @brief add entry to bloom filter, return false if filter hit otherwise return true */ - virtual bool Add(const uint8_t * data, std::size_t len) = 0; - /** @brief optionally decay old entries */ - virtual void Decay() = 0; - }; - - typedef std::shared_ptr BloomFilterPtr; - - /** @brief create bloom filter */ - BloomFilterPtr BloomFilter(std::size_t capacity = 1024 * 8); - -} -} - -#endif diff --git a/libi2pd/CPU.cpp b/libi2pd/CPU.cpp deleted file mode 100644 index a707c3dc..00000000 --- a/libi2pd/CPU.cpp +++ /dev/null @@ -1,55 +0,0 @@ -#include "CPU.h" -#if defined(__x86_64__) || defined(__i386__) -#include -#endif -#include "Log.h" - -#ifndef bit_AES -#define bit_AES (1 << 25) -#endif -#ifndef bit_AVX -#define bit_AVX (1 << 28) -#endif - - -namespace i2p -{ -namespace cpu -{ - bool aesni = false; - bool avx = false; - - void Detect() - { -#if defined(__AES__) || defined(__AVX__) - -#if defined(__x86_64__) || defined(__i386__) - int info[4]; - __cpuid(0, info[0], info[1], info[2], info[3]); - if (info[0] >= 0x00000001) { - __cpuid(0x00000001, info[0], info[1], info[2], info[3]); -#ifdef __AES__ - aesni = info[2] & bit_AES; // AESNI -#endif // __AES__ -#ifdef __AVX__ - avx = info[2] & bit_AVX; // AVX -#endif // __AVX__ - } -#endif // defined(__x86_64__) || defined(__i386__) - -#ifdef __AES__ - if(aesni) - { - LogPrint(eLogInfo, "AESNI enabled"); - } -#endif // __AES__ -#ifdef __AVX__ - if(avx) - { - LogPrint(eLogInfo, "AVX enabled"); - } -#endif // __AVX__ -#endif // defined(__AES__) || defined(__AVX__) - } -} -} diff --git a/libi2pd/CPU.h b/libi2pd/CPU.h index b4c19607..3fc38d47 100644 --- a/libi2pd/CPU.h +++ b/libi2pd/CPU.h @@ -1,15 +1,24 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef LIBI2PD_CPU_H #define LIBI2PD_CPU_H -namespace i2p -{ -namespace cpu -{ - extern bool aesni; - extern bool avx; - - void Detect(); -} -} +#if defined(_M_AMD64) || defined(__x86_64__) || defined(_M_IX86) || defined(__i386__) +# define IS_X86 1 +# if defined(_M_AMD64) || defined(__x86_64__) +# define IS_X86_64 1 +# else +# define IS_X86_64 0 +# endif +#else +# define IS_X86 0 +# define IS_X86_64 0 +#endif #endif diff --git a/libi2pd/ChaCha20.cpp b/libi2pd/ChaCha20.cpp deleted file mode 100644 index 222111b7..00000000 --- a/libi2pd/ChaCha20.cpp +++ /dev/null @@ -1,138 +0,0 @@ -/* -* Copyright (c) 2013-2018, The PurpleI2P Project -* -* This file is part of Purple i2pd project and licensed under BSD3 -* -* See full license text in LICENSE file at top of project tree -* -* Kovri go write your own code -* -*/ - -#include "I2PEndian.h" -#include "ChaCha20.h" - -#if !OPENSSL_AEAD_CHACHA20_POLY1305 -namespace i2p -{ -namespace crypto -{ -namespace chacha -{ -void u32t8le(uint32_t v, uint8_t * p) -{ - p[0] = v & 0xff; - p[1] = (v >> 8) & 0xff; - p[2] = (v >> 16) & 0xff; - p[3] = (v >> 24) & 0xff; -} - -uint32_t u8t32le(const uint8_t * p) -{ - uint32_t value = p[3]; - - value = (value << 8) | p[2]; - value = (value << 8) | p[1]; - value = (value << 8) | p[0]; - - return value; -} - -uint32_t rotl32(uint32_t x, int n) -{ - return x << n | (x >> (-n & 31)); -} - -void quarterround(uint32_t *x, int a, int b, int c, int d) -{ - x[a] += x[b]; x[d] = rotl32(x[d] ^ x[a], 16); - x[c] += x[d]; x[b] = rotl32(x[b] ^ x[c], 12); - x[a] += x[b]; x[d] = rotl32(x[d] ^ x[a], 8); - x[c] += x[d]; x[b] = rotl32(x[b] ^ x[c], 7); -} - - -void Chacha20Block::operator << (const Chacha20State & st) -{ - int i; - for (i = 0; i < 16; i++) - u32t8le(st.data[i], data + (i << 2)); -} - -void block (Chacha20State &input, int rounds) -{ - int i; - Chacha20State x; - x.Copy(input); - - for (i = rounds; i > 0; i -= 2) - { - quarterround(x.data, 0, 4, 8, 12); - quarterround(x.data, 1, 5, 9, 13); - quarterround(x.data, 2, 6, 10, 14); - quarterround(x.data, 3, 7, 11, 15); - quarterround(x.data, 0, 5, 10, 15); - quarterround(x.data, 1, 6, 11, 12); - quarterround(x.data, 2, 7, 8, 13); - quarterround(x.data, 3, 4, 9, 14); - } - x += input; - input.block << x; - -} - -void Chacha20Init (Chacha20State& state, const uint8_t * nonce, const uint8_t * key, uint32_t counter) -{ - state.data[0] = 0x61707865; - state.data[1] = 0x3320646e; - state.data[2] = 0x79622d32; - state.data[3] = 0x6b206574; - for (size_t i = 0; i < 8; i++) - state.data[4 + i] = chacha::u8t32le(key + i * 4); - - state.data[12] = htole32 (counter); - for (size_t i = 0; i < 3; i++) - state.data[13 + i] = chacha::u8t32le(nonce + i * 4); -} - -void Chacha20SetCounter (Chacha20State& state, uint32_t counter) -{ - state.data[12] = htole32 (counter); - state.offset = 0; -} - -void Chacha20Encrypt (Chacha20State& state, uint8_t * buf, size_t sz) -{ - if (state.offset > 0) - { - // previous block if any - auto s = chacha::blocksize - state.offset; - if (sz < s) s = sz; - for (size_t i = 0; i < s; i++) - buf[i] ^= state.block.data[state.offset + i]; - buf += s; - sz -= s; - state.offset += s; - if (state.offset >= chacha::blocksize) state.offset = 0; - } - for (size_t i = 0; i < sz; i += chacha::blocksize) - { - chacha::block(state, chacha::rounds); - state.data[12]++; - for (size_t j = i; j < i + chacha::blocksize; j++) - { - if (j >= sz) - { - state.offset = j & 0x3F; // % 64 - break; - } - buf[j] ^= state.block.data[j - i]; - } - } -} -} // namespace chacha - -} -} -#endif - diff --git a/libi2pd/ChaCha20.h b/libi2pd/ChaCha20.h deleted file mode 100644 index b2eec320..00000000 --- a/libi2pd/ChaCha20.h +++ /dev/null @@ -1,72 +0,0 @@ -/* -* Copyright (c) 2013-2018, The PurpleI2P Project -* -* This file is part of Purple i2pd project and licensed under BSD3 -* -* See full license text in LICENSE file at top of project tree -* -* Kovri go write your own code -* -*/ -#ifndef LIBI2PD_CHACHA20_H -#define LIBI2PD_CHACHA20_H -#include -#include -#include -#include -#include "Crypto.h" - -#if !OPENSSL_AEAD_CHACHA20_POLY1305 -namespace i2p -{ -namespace crypto -{ - const std::size_t CHACHA20_KEY_BYTES = 32; - const std::size_t CHACHA20_NOUNCE_BYTES = 12; - -namespace chacha -{ - constexpr std::size_t blocksize = 64; - constexpr int rounds = 20; - - struct Chacha20State; - struct Chacha20Block - { - Chacha20Block () {}; - Chacha20Block (Chacha20Block &&) = delete; - - uint8_t data[blocksize]; - - void operator << (const Chacha20State & st); - }; - - struct Chacha20State - { - Chacha20State (): offset (0) {}; - Chacha20State (Chacha20State &&) = delete; - - Chacha20State & operator += (const Chacha20State & other) - { - for(int i = 0; i < 16; i++) - data[i] += other.data[i]; - return *this; - } - - void Copy(const Chacha20State & other) - { - memcpy(data, other.data, sizeof(uint32_t) * 16); - } - uint32_t data[16]; - Chacha20Block block; - size_t offset; - }; - - void Chacha20Init (Chacha20State& state, const uint8_t * nonce, const uint8_t * key, uint32_t counter); - void Chacha20SetCounter (Chacha20State& state, uint32_t counter); - void Chacha20Encrypt (Chacha20State& state, uint8_t * buf, size_t sz); // encrypt buf in place -} -} -} -#endif - -#endif diff --git a/libi2pd/Config.cpp b/libi2pd/Config.cpp index 52f40089..939cd9ff 100644 --- a/libi2pd/Config.cpp +++ b/libi2pd/Config.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2017, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -19,6 +19,7 @@ #include "Identity.h" #include "Config.h" #include "version.h" +#include "Log.h" using namespace boost::program_options; @@ -35,34 +36,38 @@ namespace config { ("version", "Show i2pd version") ("conf", value()->default_value(""), "Path to main i2pd config file (default: try ~/.i2pd/i2pd.conf or /var/lib/i2pd/i2pd.conf)") ("tunconf", value()->default_value(""), "Path to config with tunnels list and options (default: try ~/.i2pd/tunnels.conf or /var/lib/i2pd/tunnels.conf)") - ("tunnelsdir", value()->default_value(""), "Path to extra tunnels' configs folder (default: ~/.i2pd/tunnels.d or /var/lib/i2pd/tunnels.d") + ("tunnelsdir", value()->default_value(""), "Path to extra tunnels' configs folder (default: ~/.i2pd/tunnels.d or /var/lib/i2pd/tunnels.d") + ("certsdir", value()->default_value(""), "Path to certificates used for verifying .su3, families (default: ~/.i2pd/certificates or /var/lib/i2pd/certificates") ("pidfile", value()->default_value(""), "Path to pidfile (default: ~/i2pd/i2pd.pid or /var/lib/i2pd/i2pd.pid)") ("log", value()->default_value(""), "Logs destination: stdout, file, syslog (stdout if not set)") ("logfile", value()->default_value(""), "Path to logfile (stdout if not set, autodetect if daemon)") - ("loglevel", value()->default_value("info"), "Set the minimal level of log messages (debug, info, warn, error, none)") + ("loglevel", value()->default_value("warn"), "Set the minimal level of log messages (debug, info, warn, error, none)") ("logclftime", bool_switch()->default_value(false), "Write full CLF-formatted date and time to log (default: disabled, write only time)") ("family", value()->default_value(""), "Specify a family, router belongs to") ("datadir", value()->default_value(""), "Path to storage of i2pd data (RI, keys, peer profiles, ...)") - ("host", value()->default_value("0.0.0.0"), "External IP") + ("host", value()->default_value(""), "External IP") ("ifname", value()->default_value(""), "Network interface to bind to") ("ifname4", value()->default_value(""), "Network interface to bind to for ipv4") ("ifname6", value()->default_value(""), "Network interface to bind to for ipv6") - ("nat", value()->default_value(true), "Should we assume we are behind NAT? (default: enabled)") + ("nat", bool_switch()->default_value(true), "Should we assume we are behind NAT? (default: enabled)") ("port", value()->default_value(0), "Port to listen for incoming connections (default: auto)") - ("ipv4", value()->default_value(true), "Enable communication through ipv4 (default: enabled)") + ("ipv4", bool_switch()->default_value(true), "Enable communication through ipv4 (default: enabled)") + ("address4", value()->default_value(""), "Local address to bind ipv4 transport sockets to") ("ipv6", bool_switch()->default_value(false), "Enable communication through ipv6 (default: disabled)") + ("address6", value()->default_value(""), "Local address to bind ipv6 transport sockets to") + ("reservedrange", bool_switch()->default_value(true), "Check remote RI for being in blacklist of reserved IP ranges (default: enabled)") ("netid", value()->default_value(I2PD_NET_ID), "Specify NetID. Main I2P is 2") ("daemon", bool_switch()->default_value(false), "Router will go to background after start (default: disabled)") ("service", bool_switch()->default_value(false), "Router will use system folders like '/var/lib/i2pd' (default: disabled)") ("notransit", bool_switch()->default_value(false), "Router will not accept transit tunnels at startup (default: disabled)") ("floodfill", bool_switch()->default_value(false), "Router will be floodfill (default: disabled)") - ("bandwidth", value()->default_value(""), "Bandwidth limit: integer in KBps or letters: L (32), O (256), P (2048), X (>9000)") + ("bandwidth", value()->default_value(""), "Transit traffic bandwidth limit: integer in KBps or letters: L (32), O (256), P (2048), X (>9000)") ("share", value()->default_value(100), "Limit of transit traffic from max bandwidth in percents. (default: 100)") - ("ntcp", value()->default_value(true), "Enable NTCP transport (default: enabled)") - ("ssu", value()->default_value(true), "Enable SSU transport (default: enabled)") - ("ntcpproxy", value()->default_value(""), "Proxy URL for NTCP transport") + ("ntcp", bool_switch()->default_value(false), "Ignored. Always false") + ("ssu", bool_switch()->default_value(false), "Ignored. Always false") + ("ntcpproxy", value()->default_value(""), "Ignored") #ifdef _WIN32 - ("svcctl", value()->default_value(""), "Windows service management ('install' or 'remove')") + ("svcctl", value()->default_value(""), "Ignored") ("insomnia", bool_switch()->default_value(false), "Prevent system from sleeping (default: disabled)") ("close", value()->default_value("ask"), "Action on close: minimize, exit, ask") #endif @@ -72,10 +77,11 @@ namespace config { limits.add_options() ("limits.coresize", value()->default_value(0), "Maximum size of corefile in Kb (0 - use system limit)") ("limits.openfiles", value()->default_value(0), "Maximum number of open files (0 - use system default)") - ("limits.transittunnels", value()->default_value(2500), "Maximum active transit sessions (default:2500)") - ("limits.ntcpsoft", value()->default_value(0), "Threshold to start probabilistic backoff with ntcp sessions (default: use system limit)") - ("limits.ntcphard", value()->default_value(0), "Maximum number of ntcp sessions (default: use system limit)") - ("limits.ntcpthreads", value()->default_value(1), "Maximum number of threads used by NTCP DH worker (default: 1)") + ("limits.transittunnels", value()->default_value(10000), "Maximum active transit tunnels (default:10000)") + ("limits.zombies", value()->default_value(0), "Minimum percentage of successfully created tunnels under which tunnel cleanup is paused (default [%]: 0.00)") + ("limits.ntcpsoft", value()->default_value(0), "Ignored") + ("limits.ntcphard", value()->default_value(0), "Ignored") + ("limits.ntcpthreads", value()->default_value(1), "Ignored") ; options_description httpserver("HTTP Server options"); @@ -88,7 +94,9 @@ namespace config { ("http.pass", value()->default_value(""), "Password for basic auth (default: random, see logs)") ("http.strictheaders", value()->default_value(true), "Enable strict host checking on WebUI") ("http.hostname", value()->default_value("localhost"), "Expected hostname for WebUI") - ("http.webroot", value()->default_value("/"), "WebUI root path (default: / )") + ("http.webroot", value()->default_value("/"), "WebUI root path (default: / )") + ("http.lang", value()->default_value("english"), "WebUI language (default: english )") + ("http.showTotalTCSR", value()->default_value(false), "Show additional value with total TCSR since router's start (default: false)") ; options_description httpproxy("HTTP Proxy options"); @@ -96,16 +104,27 @@ namespace config { ("httpproxy.enabled", value()->default_value(true), "Enable or disable HTTP Proxy") ("httpproxy.address", value()->default_value("127.0.0.1"), "HTTP Proxy listen address") ("httpproxy.port", value()->default_value(4444), "HTTP Proxy listen port") - ("httpproxy.keys", value()->default_value(""), "File to persist HTTP Proxy keys") - ("httpproxy.signaturetype", value()->default_value(i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519), "Signature type for new keys. 7 (EdDSA) by default") + ("httpproxy.keys", value()->default_value("transient-proxy"), "File to persist HTTP Proxy keys. Transient by default") + ("httpproxy.signaturetype", value()-> + default_value(i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519), "Signature type for new keys. 7 (EdDSA) by default") ("httpproxy.inbound.length", value()->default_value("3"), "HTTP proxy inbound tunnel length") ("httpproxy.outbound.length", value()->default_value("3"), "HTTP proxy outbound tunnel length") ("httpproxy.inbound.quantity", value()->default_value("5"), "HTTP proxy inbound tunnels quantity") ("httpproxy.outbound.quantity", value()->default_value("5"), "HTTP proxy outbound tunnels quantity") + ("httpproxy.inbound.lengthVariance", value()->default_value("0"), "HTTP proxy inbound tunnels length variance") + ("httpproxy.outbound.lengthVariance", value()->default_value("0"), "HTTP proxy outbound tunnels length variance") ("httpproxy.latency.min", value()->default_value("0"), "HTTP proxy min latency for tunnels") ("httpproxy.latency.max", value()->default_value("0"), "HTTP proxy max latency for tunnels") ("httpproxy.outproxy", value()->default_value(""), "HTTP proxy upstream out proxy url") ("httpproxy.addresshelper", value()->default_value(true), "Enable or disable addresshelper") + ("httpproxy.senduseragent", value()->default_value(false), "Pass through user's User-Agent if enabled. Disabled by default") + ("httpproxy.i2cp.leaseSetType", value()->default_value("3"), "Local destination's LeaseSet type") + ("httpproxy.i2cp.leaseSetEncType", value()->default_value("0,4"), "Local destination's LeaseSet encryption type") + ("httpproxy.i2cp.leaseSetPrivKey", value()->default_value(""), "LeaseSet private key") + ("httpproxy.i2p.streaming.maxOutboundSpeed", value()->default_value("1730000000"), "Max outbound speed of HTTP proxy stream in bytes/sec") + ("httpproxy.i2p.streaming.maxInboundSpeed", value()->default_value("1730000000"), "Max inbound speed of HTTP proxy stream in bytes/sec") + ("httpproxy.i2p.streaming.profile", value()->default_value("1"), "HTTP Proxy bandwidth usage profile. 1 - bulk(high), 2- interactive(low)") + ; options_description socksproxy("SOCKS Proxy options"); @@ -113,24 +132,46 @@ namespace config { ("socksproxy.enabled", value()->default_value(true), "Enable or disable SOCKS Proxy") ("socksproxy.address", value()->default_value("127.0.0.1"), "SOCKS Proxy listen address") ("socksproxy.port", value()->default_value(4447), "SOCKS Proxy listen port") - ("socksproxy.keys", value()->default_value(""), "File to persist SOCKS Proxy keys") - ("socksproxy.signaturetype", value()->default_value(i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519), "Signature type for new keys. 7 (EdDSA) by default") + ("socksproxy.keys", value()->default_value("transient-proxy"), "File to persist SOCKS Proxy keys. Transient by default") + ("socksproxy.signaturetype", value()-> + default_value(i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519), "Signature type for new keys. 7 (EdDSA) by default") ("socksproxy.inbound.length", value()->default_value("3"), "SOCKS proxy inbound tunnel length") ("socksproxy.outbound.length", value()->default_value("3"), "SOCKS proxy outbound tunnel length") ("socksproxy.inbound.quantity", value()->default_value("5"), "SOCKS proxy inbound tunnels quantity") ("socksproxy.outbound.quantity", value()->default_value("5"), "SOCKS proxy outbound tunnels quantity") + ("socksproxy.inbound.lengthVariance", value()->default_value("0"), "SOCKS proxy inbound tunnels length variance") + ("socksproxy.outbound.lengthVariance", value()->default_value("0"), "SOCKS proxy outbound tunnels length variance") ("socksproxy.latency.min", value()->default_value("0"), "SOCKS proxy min latency for tunnels") ("socksproxy.latency.max", value()->default_value("0"), "SOCKS proxy max latency for tunnels") ("socksproxy.outproxy.enabled", value()->default_value(false), "Enable or disable SOCKS outproxy") ("socksproxy.outproxy", value()->default_value("127.0.0.1"), "Upstream outproxy address for SOCKS Proxy") ("socksproxy.outproxyport", value()->default_value(9050), "Upstream outproxy port for SOCKS Proxy") + ("socksproxy.i2cp.leaseSetType", value()->default_value("3"), "Local destination's LeaseSet type") + ("socksproxy.i2cp.leaseSetEncType", value()->default_value("0,4"), "Local destination's LeaseSet encryption type") + ("socksproxy.i2cp.leaseSetPrivKey", value()->default_value(""), "LeaseSet private key") + ("socksproxy.i2p.streaming.maxOutboundSpeed", value()->default_value("1730000000"), "Max outbound speed of SOCKS proxy stream in bytes/sec") + ("socksproxy.i2p.streaming.maxInboundSpeed", value()->default_value("1730000000"), "Max inbound speed of SOCKS proxy stream in bytes/sec") + ("socksproxy.i2p.streaming.profile", value()->default_value("1"), "SOCKS Proxy bandwidth usage profile. 1 - bulk(high), 2- interactive(low)") ; + options_description shareddest("Shared local destination options"); + shareddest.add_options() + ("shareddest.inbound.length", value()->default_value("3"), "Shared local destination inbound tunnel length") + ("shareddest.outbound.length", value()->default_value("3"), "Shared local destination outbound tunnel length") + ("shareddest.inbound.quantity", value()->default_value("3"), "Shared local destination inbound tunnels quantity") + ("shareddest.outbound.quantity", value()->default_value("3"), "Shared local destination outbound tunnels quantity") + ("shareddest.i2cp.leaseSetType", value()->default_value("3"), "Shared local destination's LeaseSet type") + ("shareddest.i2cp.leaseSetEncType", value()->default_value("0,4"), "Shared local destination's LeaseSet encryption type") + ("shareddest.i2p.streaming.profile", value()->default_value("2"), "Shared local destination bandwidth usage profile. 1 - bulk(high), 2- interactive(low)") + ; + options_description sam("SAM bridge options"); sam.add_options() ("sam.enabled", value()->default_value(true), "Enable or disable SAM Application bridge") ("sam.address", value()->default_value("127.0.0.1"), "SAM listen address") - ("sam.port", value()->default_value(7656), "SAM listen port") + ("sam.port", value()->default_value(7656), "SAM listen TCP port") + ("sam.portudp", value()->default_value(0), "SAM listen UDP port") + ("sam.singlethread", value()->default_value(true), "Sessions run in the SAM bridge's thread") ; options_description bob("BOB options"); @@ -145,6 +186,9 @@ namespace config { ("i2cp.enabled", value()->default_value(false), "Enable or disable I2CP") ("i2cp.address", value()->default_value("127.0.0.1"), "I2CP listen address") ("i2cp.port", value()->default_value(7654), "I2CP listen port") + ("i2cp.singlethread", value()->default_value(true), "Destinations run in the I2CP server's thread") + ("i2cp.inboundlimit", value()->default_value(0), "Client inbound limit in KBps to return in BandwidthLimitsMessage. Router's bandwidth by default") + ("i2cp.outboundlimit", value()->default_value(0), "Client outbound limit in KBps to return in BandwidthLimitsMessage. Router's bandwidth by default") ; options_description i2pcontrol("I2PControl options"); @@ -170,7 +214,7 @@ namespace config { options_description precomputation("Precomputation options"); precomputation.add_options() ("precomputation.elgamal", -#if defined(__x86_64__) +#if (defined(_M_AMD64) || defined(__x86_64__)) value()->default_value(false), #else value()->default_value(true), @@ -182,48 +226,58 @@ namespace config { reseed.add_options() ("reseed.verify", value()->default_value(false), "Verify .su3 signature") ("reseed.threshold", value()->default_value(25), "Minimum number of known routers before requesting reseed") - ("reseed.floodfill", value()->default_value(""), "Path to router info of floodfill to reseed from") + ("reseed.floodfill", value()->default_value(""), "Ignored. Always empty") ("reseed.file", value()->default_value(""), "Path to local .su3 file or HTTPS URL to reseed from") ("reseed.zipfile", value()->default_value(""), "Path to local .zip file to reseed from") ("reseed.proxy", value()->default_value(""), "url for reseed proxy, supports http/socks") ("reseed.urls", value()->default_value( - "https://reseed.i2p-projekt.de/," - "https://i2p.mooo.com/netDb/," - "https://netdb.i2p2.no/," - // "https://us.reseed.i2p2.no:444/," // mamoth's shit - // "https://uk.reseed.i2p2.no:444/," // mamoth's shit - "https://reseed.i2p.net.in/," - "https://download.xxlspeed.com/," + "https://reseed2.i2p.net/," + "https://reseed.diva.exchange/," "https://reseed-fr.i2pd.xyz/," - "https://reseed.atomike.ninja/," - "https://reseed.memcpy.io/," "https://reseed.onion.im/," - "https://itoopie.atomike.ninja/," "https://i2pseed.creativecowpat.net:8443/," - "https://i2p.novg.net/" + "https://reseed.i2pgit.org/," + "https://coconut.incognet.io/," + "https://reseed-pl.i2pd.xyz/," + "https://www2.mk16.de/," + "https://i2p.ghativega.in/," + "https://i2p.novg.net/," + "https://reseed.stormycloud.org/," + "https://cubicchaos.net:8443/" ), "Reseed URLs, separated by comma") + ("reseed.yggurls", value()->default_value( + "http://[324:71e:281a:9ed3::ace]:7070/," + "http://[301:65b9:c7cd:9a36::1]:18801/," + "http://[320:8936:ec1a:31f1::216]/," + "http://[316:f9e0:f22e:a74f::216]/" + ), "Reseed URLs through the Yggdrasil, separated by comma") ; options_description addressbook("AddressBook options"); addressbook.add_options() + ("addressbook.enabled", value()->default_value(true), "Enable address book lookups and subscritions (default: enabled)") ("addressbook.defaulturl", value()->default_value( - "http://joajgazyztfssty4w2on5oaqksz6tqoxbduy553y34mf4byv6gpq.b32.i2p/export/alive-hosts.txt" + "http://shx5vqsw7usdaunyzr2qmes2fq37oumybpudrd4jjj4e4vk4uusa.b32.i2p/hosts.txt" ), "AddressBook subscription URL for initial setup") - ("addressbook.subscriptions", value()->default_value(""), "AddressBook subscriptions URLs, separated by comma"); + ("addressbook.subscriptions", value()->default_value( + "http://reg.i2p/hosts.txt" + ), "AddressBook subscriptions URLs, separated by comma") + ("addressbook.hostsfile", value()->default_value(""), "File to dump addresses in hosts.txt format"); options_description trust("Trust options"); trust.add_options() ("trust.enabled", value()->default_value(false), "Enable explicit trust options") - ("trust.family", value()->default_value(""), "Router Familiy to trust for first hops") + ("trust.family", value()->default_value(""), "Router Family to trust for first hops") ("trust.routers", value()->default_value(""), "Only Connect to these routers") ("trust.hidden", value()->default_value(false), "Should we hide our router from other routers?") ; + // Save deprecated websocket options for compatibility options_description websocket("Websocket Options"); websocket.add_options() - ("websockets.enabled", value()->default_value(false), "Enable websocket server") - ("websockets.address", value()->default_value("127.0.0.1"), "Address to bind websocket server on") - ("websockets.port", value()->default_value(7666), "Port to bind websocket server on") + ("websockets.enabled", value()->default_value(false), "Deprecated option") + ("websockets.address", value()->default_value(""), "Deprecated option") + ("websockets.port", value()->default_value(0), "Deprecated option") ; options_description exploratory("Exploratory Options"); @@ -236,36 +290,69 @@ namespace config { options_description ntcp2("NTCP2 Options"); ntcp2.add_options() - ("ntcp2.enabled", value()->default_value(true), "Enable NTCP2 (default: enabled)") - ("ntcp2.published", value()->default_value(false), "Publish NTCP2 (default: disabled)") - ("ntcp2.port", value()->default_value(0), "Port to listen for incoming NTCP2 connections (default: auto)") - ("ntcp2.addressv6", value()->default_value("::"), "Address to bind NTCP2 on") + ("ntcp2.enabled", value()->default_value(true), "Enable NTCP2 (default: enabled)") + ("ntcp2.published", value()->default_value(true), "Publish NTCP2 (default: enabled)") + ("ntcp2.port", value()->default_value(0), "Port to listen for incoming NTCP2 connections (default: auto)") + ("ntcp2.addressv6", value()->default_value("::"), "Address to publish NTCP2 with") + ("ntcp2.proxy", value()->default_value(""), "Proxy URL for NTCP2 transport") + ; + + options_description ssu2("SSU2 Options"); + ssu2.add_options() + ("ssu2.enabled", value()->default_value(true), "Enable SSU2 (default: enabled)") + ("ssu2.published", value()->default_value(true), "Publish SSU2 (default: enabled)") + ("ssu2.port", value()->default_value(0), "Port to listen for incoming SSU2 packets (default: auto)") + ("ssu2.mtu4", value()->default_value(0), "MTU for ipv4 address (default: detect)") + ("ssu2.mtu6", value()->default_value(0), "MTU for ipv6 address (default: detect)") + ("ssu2.proxy", value()->default_value(""), "Socks5 proxy URL for SSU2 transport") ; options_description nettime("Time sync options"); nettime.add_options() - ("nettime.enabled", value()->default_value(false), "Disable time sync (default: disabled)") + ("nettime.enabled", value()->default_value(false), "Enable NTP time sync (default: disabled)") ("nettime.ntpservers", value()->default_value( "0.pool.ntp.org," "1.pool.ntp.org," "2.pool.ntp.org," "3.pool.ntp.org" - ), "Comma separated list of NTCP servers") - ("nettime.ntpsyncinterval", value()->default_value(72), "NTP sync interval in hours (default: 72)") + ), "Comma separated list of NTP servers") + ("nettime.ntpsyncinterval", value()->default_value(72), "NTP sync interval in hours (default: 72)") + ("nettime.frompeers", value()->default_value(true), "Sync clock from transport peers (default: enabled)") ; options_description persist("Network information persisting options"); persist.add_options() - ("persist.profiles", value()->default_value(true), "Persist peer profiles (default: true)") - ("persist.addressbook", value()->default_value(true), "Persist full addresses (default: true)") + ("persist.profiles", value()->default_value(true), "Persist peer profiles (default: true)") + ("persist.addressbook", value()->default_value(true), "Persist full addresses (default: true)") ; + options_description cpuext("CPU encryption extensions options. Deprecated"); + cpuext.add_options() + ("cpuext.aesni", bool_switch()->default_value(true), "Deprecated option") + ("cpuext.avx", bool_switch()->default_value(false), "Deprecated option") + ("cpuext.force", bool_switch()->default_value(false), "Deprecated option") + ; + + options_description meshnets("Meshnet transports options"); + meshnets.add_options() + ("meshnets.yggdrasil", bool_switch()->default_value(false), "Support transports through the Yggdrasil (default: false)") + ("meshnets.yggaddress", value()->default_value(""), "Yggdrasil address to publish") + ; + +#ifdef __linux__ + options_description unix_specific("UNIX-specific options"); + unix_specific.add_options() + ("unix.handle_sigtstp", bool_switch()->default_value(false), "Handle SIGTSTP and SIGCONT signals (default: disabled)") + ; +#endif + m_OptionsDesc .add(general) .add(limits) .add(httpserver) .add(httpproxy) .add(socksproxy) + .add(shareddest) .add(sam) .add(bob) .add(i2cp) @@ -275,11 +362,17 @@ namespace config { .add(reseed) .add(addressbook) .add(trust) - .add(websocket) + .add(websocket) // deprecated .add(exploratory) .add(ntcp2) + .add(ssu2) .add(nettime) .add(persist) + .add(cpuext) + .add(meshnets) +#ifdef __linux__ + .add(unix_specific) +#endif ; } @@ -288,7 +381,7 @@ namespace config { try { auto style = boost::program_options::command_line_style::unix_style - | boost::program_options::command_line_style::allow_long_disguise; + | boost::program_options::command_line_style::allow_long_disguise; style &= ~ boost::program_options::command_line_style::allow_guessing; if (ignoreUnknown) store(command_line_parser(argc, argv).options(m_OptionsDesc).style (style).allow_unregistered().run(), m_Options); @@ -297,6 +390,7 @@ namespace config { } catch (boost::program_options::error& e) { + ThrowFatal ("Error while parsing arguments: ", e.what()); std::cerr << "args: " << e.what() << std::endl; exit(EXIT_FAILURE); } @@ -306,16 +400,16 @@ namespace config { std::cout << "i2pd version " << I2PD_VERSION << " (" << I2P_VERSION << ")" << std::endl; std::cout << m_OptionsDesc; exit(EXIT_SUCCESS); - } + } else if (m_Options.count("version")) { std::cout << "i2pd version " << I2PD_VERSION << " (" << I2P_VERSION << ")" << std::endl; - std::cout << "Boost version " + std::cout << "Boost version " << BOOST_VERSION / 100000 << "." // maj. version << BOOST_VERSION / 100 % 1000 << "." // min. version << BOOST_VERSION % 100 // patch version << std::endl; -#if defined(OPENSSL_VERSION_TEXT) +#if defined(OPENSSL_VERSION_TEXT) std::cout << OPENSSL_VERSION_TEXT << std::endl; #endif #if defined(LIBRESSL_VERSION_TEXT) @@ -334,6 +428,7 @@ namespace config { if (!config.is_open()) { + ThrowFatal ("Missing or unreadable config file: ", path); std::cerr << "missing/unreadable config file: " << path << std::endl; exit(EXIT_FAILURE); } @@ -344,6 +439,7 @@ namespace config { } catch (boost::program_options::error& e) { + ThrowFatal ("Error while parsing config file: ", e.what()); std::cerr << e.what() << std::endl; exit(EXIT_FAILURE); }; diff --git a/libi2pd/Config.h b/libi2pd/Config.h index 679ae3bb..79463e65 100644 --- a/libi2pd/Config.h +++ b/libi2pd/Config.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef CONFIG_H #define CONFIG_H @@ -18,98 +26,101 @@ namespace i2p { namespace config { - extern boost::program_options::variables_map m_Options; + extern boost::program_options::variables_map m_Options; - /** - * @brief Initialize list of acceptable parameters - * - * Should be called before any Parse* functions. - */ - void Init(); + /** + * @brief Initialize list of acceptable parameters + * + * Should be called before any Parse* functions. + */ + void Init(); - /** - * @brief Parse cmdline parameters, and show help if requested - * @param argc Cmdline arguments count, should be passed from main(). - * @param argv Cmdline parameters array, should be passed from main() - * - * If --help is given in parameters, shows its list with description - * and terminates the program with exitcode 0. - * - * In case of parameter misuse boost throws an exception. - * We internally handle type boost::program_options::unknown_option, - * and then terminate the program with exitcode 1. - * - * Other exceptions will be passed to higher level. - */ - void ParseCmdline(int argc, char* argv[], bool ignoreUnknown = false); + /** + * @brief Parse cmdline parameters, and show help if requested + * @param argc Cmdline arguments count, should be passed from main(). + * @param argv Cmdline parameters array, should be passed from main() + * + * If --help is given in parameters, shows its list with description + * and terminates the program with exitcode 0. + * + * In case of parameter misuse boost throws an exception. + * We internally handle type boost::program_options::unknown_option, + * and then terminate the program with exitcode 1. + * + * Other exceptions will be passed to higher level. + */ + void ParseCmdline(int argc, char* argv[], bool ignoreUnknown = false); - /** - * @brief Load and parse given config file - * @param path Path to config file - * - * If error occurred when opening file path is points to, - * we show the error message and terminate program. - * - * In case of parameter misuse boost throws an exception. - * We internally handle type boost::program_options::unknown_option, - * and then terminate program with exitcode 1. - * - * Other exceptions will be passed to higher level. - */ - void ParseConfig(const std::string& path); + /** + * @brief Load and parse given config file + * @param path Path to config file + * + * If error occurred when opening file path is points to, + * we show the error message and terminate program. + * + * In case of parameter misuse boost throws an exception. + * We internally handle type boost::program_options::unknown_option, + * and then terminate program with exitcode 1. + * + * Other exceptions will be passed to higher level. + */ + void ParseConfig(const std::string& path); - /** - * @brief Used to combine options from cmdline, config and default values - */ - void Finalize(); + /** + * @brief Used to combine options from cmdline, config and default values + */ + void Finalize(); - /* @brief Accessor to parameters by name - * @param name Name of the requested parameter - * @param value Variable where to store option - * @return this function returns false if parameter not found - * - * Example: uint16_t port; GetOption("sam.port", port); - */ - template - bool GetOption(const char *name, T& value) { - if (!m_Options.count(name)) - return false; - value = m_Options[name].as(); - return true; - } + /** + * @brief Accessor to parameters by name + * @param name Name of the requested parameter + * @param value Variable where to store option + * @return this function returns false if parameter not found + * + * Example: uint16_t port; GetOption("sam.port", port); + */ + template + bool GetOption(const char *name, T& value) + { + if (!m_Options.count(name)) + return false; + value = m_Options[name].as(); + return true; + } - template - bool GetOption(const std::string& name, T& value) - { - return GetOption (name.c_str (), value); - } + template + bool GetOption(const std::string& name, T& value) + { + return GetOption (name.c_str (), value); + } - bool GetOptionAsAny(const char *name, boost::any& value); - bool GetOptionAsAny(const std::string& name, boost::any& value); + bool GetOptionAsAny(const char *name, boost::any& value); + bool GetOptionAsAny(const std::string& name, boost::any& value); - /** - * @brief Set value of given parameter - * @param name Name of settable parameter - * @param value New parameter value - * @return true if value set up successful, false otherwise - * - * Example: uint16_t port = 2827; SetOption("bob.port", port); - */ - template - bool SetOption(const char *name, const T& value) { - if (!m_Options.count(name)) - return false; - m_Options.at(name).value() = value; - notify(m_Options); - return true; - } + /** + * @brief Set value of given parameter + * @param name Name of settable parameter + * @param value New parameter value + * @return true if value set up successful, false otherwise + * + * Example: uint16_t port = 2827; SetOption("bob.port", port); + */ + template + bool SetOption(const char *name, const T& value) + { + if (!m_Options.count(name)) + return false; + m_Options.at(name).value() = value; + notify(m_Options); + return true; + } - /** - * @brief Check is value explicitly given or default - * @param name Name of checked parameter - * @return true if value set to default, false otherwise - */ - bool IsDefault(const char *name); + /** + * @brief Check is value explicitly given or default + * @param name Name of checked parameter + * @return true if value set to default, false otherwise + */ + bool IsDefault(const char *name); } } diff --git a/libi2pd/Crypto.cpp b/libi2pd/Crypto.cpp index cd6d5b8e..c41b4c10 100644 --- a/libi2pd/Crypto.cpp +++ b/libi2pd/Crypto.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -11,10 +19,11 @@ #if OPENSSL_HKDF #include #endif -#if !OPENSSL_AEAD_CHACHA20_POLY1305 -#include "ChaCha20.h" -#include "Poly1305.h" +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 +#include +#include #endif +#include "CPU.h" #include "Crypto.h" #include "Ed25519.h" #include "I2PEndian.h" @@ -24,7 +33,7 @@ namespace i2p { namespace crypto { - const uint8_t elgp_[256]= + constexpr uint8_t elgp_[256]= { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC9, 0x0F, 0xDA, 0xA2, 0x21, 0x68, 0xC2, 0x34, 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1, 0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74, @@ -44,9 +53,9 @@ namespace crypto 0x15, 0x72, 0x8E, 0x5A, 0x8A, 0xAC, 0xAA, 0x68, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; - const int elgg_ = 2; + constexpr int elgg_ = 2; - const uint8_t dsap_[128]= + constexpr uint8_t dsap_[128]= { 0x9c, 0x05, 0xb2, 0xaa, 0x96, 0x0d, 0x9b, 0x97, 0xb8, 0x93, 0x19, 0x63, 0xc9, 0xcc, 0x9e, 0x8c, 0x30, 0x26, 0xe9, 0xb8, 0xed, 0x92, 0xfa, 0xd0, 0xa6, 0x9c, 0xc8, 0x86, 0xd5, 0xbf, 0x80, 0x15, @@ -58,13 +67,13 @@ namespace crypto 0x28, 0x5d, 0x4c, 0xf2, 0x95, 0x38, 0xd9, 0xe3, 0xb6, 0x05, 0x1f, 0x5b, 0x22, 0xcc, 0x1c, 0x93 }; - const uint8_t dsaq_[20]= + constexpr uint8_t dsaq_[20]= { 0xa5, 0xdf, 0xc2, 0x8f, 0xef, 0x4c, 0xa1, 0xe2, 0x86, 0x74, 0x4c, 0xd8, 0xee, 0xd9, 0xd2, 0x9d, 0x68, 0x40, 0x46, 0xb7 }; - const uint8_t dsag_[128]= + constexpr uint8_t dsag_[128]= { 0x0c, 0x1f, 0x4d, 0x27, 0xd4, 0x00, 0x93, 0xb4, 0x29, 0xe9, 0x62, 0xd7, 0x22, 0x38, 0x24, 0xe0, 0xbb, 0xc4, 0x7e, 0x7c, 0x83, 0x2a, 0x39, 0x23, 0x6f, 0xc6, 0x83, 0xaf, 0x84, 0x88, 0x95, 0x81, @@ -76,7 +85,7 @@ namespace crypto 0xb3, 0xdb, 0xb1, 0x4a, 0x90, 0x5e, 0x7b, 0x2b, 0x3e, 0x93, 0xbe, 0x47, 0x08, 0xcb, 0xcc, 0x82 }; - const int rsae_ = 65537; + constexpr int rsae_ = 65537; struct CryptoConstants { @@ -111,7 +120,7 @@ namespace crypto ~CryptoConstants () { - BN_free (elgp); BN_free (elgg); BN_free (dsap); BN_free (dsaq); BN_free (dsag); BN_free (rsae); + BN_free (elgp); BN_free (elgg); BN_free (dsap); BN_free (dsaq); BN_free (dsag); BN_free (rsae); } }; @@ -141,6 +150,37 @@ namespace crypto #define dsap GetCryptoConstants ().dsap #define dsaq GetCryptoConstants ().dsaq #define dsag GetCryptoConstants ().dsag +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + EVP_PKEY * CreateDSA (BIGNUM * pubKey, BIGNUM * privKey) + { + EVP_PKEY * pkey = nullptr; + int selection = EVP_PKEY_KEY_PARAMETERS; + auto bld = OSSL_PARAM_BLD_new(); + OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_P, dsap); + OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_Q, dsaq); + OSSL_PARAM_BLD_push_BN(bld, OSSL_PKEY_PARAM_FFC_G, dsag); + if (pubKey) + { + OSSL_PARAM_BLD_push_BN (bld, OSSL_PKEY_PARAM_PUB_KEY, pubKey); + selection = EVP_PKEY_PUBLIC_KEY; + } + if (privKey) + { + OSSL_PARAM_BLD_push_BN (bld, OSSL_PKEY_PARAM_PRIV_KEY, privKey); + selection = EVP_PKEY_KEYPAIR; + } + auto params = OSSL_PARAM_BLD_to_param(bld); + + EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, "DSA", NULL); + EVP_PKEY_fromdata_init(ctx); + EVP_PKEY_fromdata(ctx, &pkey, selection, params); + + EVP_PKEY_CTX_free(ctx); + OSSL_PARAM_free(params); + OSSL_PARAM_BLD_free(bld); + return pkey; + } +#else DSA * CreateDSA () { DSA * dsa = DSA_new (); @@ -148,11 +188,14 @@ namespace crypto DSA_set0_key (dsa, NULL, NULL); return dsa; } - +#endif + // DH/ElGamal +#if !IS_X86_64 const int ELGAMAL_SHORT_EXPONENT_NUM_BITS = 226; const int ELGAMAL_SHORT_EXPONENT_NUM_BYTES = ELGAMAL_SHORT_EXPONENT_NUM_BITS/8+1; +#endif const int ELGAMAL_FULL_EXPONENT_NUM_BITS = 2048; const int ELGAMAL_FULL_EXPONENT_NUM_BYTES = ELGAMAL_FULL_EXPONENT_NUM_BITS/8; @@ -231,95 +274,37 @@ namespace crypto static BIGNUM * (* g_ElggTable)[255] = nullptr; -// DH - - DHKeys::DHKeys () - { - m_DH = DH_new (); - DH_set0_pqg (m_DH, BN_dup (elgp), NULL, BN_dup (elgg)); - DH_set0_key (m_DH, NULL, NULL); - } - - DHKeys::~DHKeys () - { - DH_free (m_DH); - } - - void DHKeys::GenerateKeys () - { - BIGNUM * priv_key = NULL, * pub_key = NULL; -#if !defined(__x86_64__) // use short exponent for non x64 - priv_key = BN_new (); - BN_rand (priv_key, ELGAMAL_SHORT_EXPONENT_NUM_BITS, 0, 1); -#endif - if (g_ElggTable) - { -#if defined(__x86_64__) - priv_key = BN_new (); - BN_rand (priv_key, ELGAMAL_FULL_EXPONENT_NUM_BITS, 0, 1); -#endif - auto ctx = BN_CTX_new (); - pub_key = ElggPow (priv_key, g_ElggTable, ctx); - DH_set0_key (m_DH, pub_key, priv_key); - BN_CTX_free (ctx); - } - else - { - DH_set0_key (m_DH, NULL, priv_key); - DH_generate_key (m_DH); - DH_get0_key (m_DH, (const BIGNUM **)&pub_key, (const BIGNUM **)&priv_key); - } - - bn2buf (pub_key, m_PublicKey, 256); - } - - void DHKeys::Agree (const uint8_t * pub, uint8_t * shared) - { - BIGNUM * pk = BN_bin2bn (pub, 256, NULL); - DH_compute_key (shared, pk, m_DH); - BN_free (pk); - } - // x25519 X25519Keys::X25519Keys () { -#if OPENSSL_X25519 m_Ctx = EVP_PKEY_CTX_new_id (NID_X25519, NULL); m_Pkey = nullptr; -#else - m_Ctx = BN_CTX_new (); -#endif - } + } X25519Keys::X25519Keys (const uint8_t * priv, const uint8_t * pub) { -#if OPENSSL_X25519 m_Pkey = EVP_PKEY_new_raw_private_key (EVP_PKEY_X25519, NULL, priv, 32); m_Ctx = EVP_PKEY_CTX_new (m_Pkey, NULL); - memcpy (m_PublicKey, pub, 32); // TODO: verify against m_Pkey -#else - memcpy (m_PrivateKey, priv, 32); - memcpy (m_PublicKey, pub, 32); - m_Ctx = BN_CTX_new (); -#endif - } - + if (pub) + memcpy (m_PublicKey, pub, 32); // TODO: verify against m_Pkey + else + { + size_t len = 32; + EVP_PKEY_get_raw_public_key (m_Pkey, m_PublicKey, &len); + } + } + X25519Keys::~X25519Keys () { -#if OPENSSL_X25519 EVP_PKEY_CTX_free (m_Ctx); - if (m_Pkey) EVP_PKEY_free (m_Pkey); -#else - BN_CTX_free (m_Ctx); -#endif - } + if (m_Pkey) EVP_PKEY_free (m_Pkey); + } void X25519Keys::GenerateKeys () { -#if OPENSSL_X25519 if (m_Pkey) - { - EVP_PKEY_free (m_Pkey); + { + EVP_PKEY_free (m_Pkey); m_Pkey = nullptr; } EVP_PKEY_keygen_init (m_Ctx); @@ -328,39 +313,44 @@ namespace crypto m_Ctx = EVP_PKEY_CTX_new (m_Pkey, NULL); // TODO: do we really need to re-create m_Ctx? size_t len = 32; EVP_PKEY_get_raw_public_key (m_Pkey, m_PublicKey, &len); -#else - RAND_bytes (m_PrivateKey, 32); - GetEd25519 ()->ScalarMulB (m_PrivateKey, m_PublicKey, m_Ctx); -#endif - } + } - void X25519Keys::Agree (const uint8_t * pub, uint8_t * shared) + bool X25519Keys::Agree (const uint8_t * pub, uint8_t * shared) { -#if OPENSSL_X25519 + if (!pub || (pub[31] & 0x80)) return false; // not x25519 key EVP_PKEY_derive_init (m_Ctx); auto pkey = EVP_PKEY_new_raw_public_key (EVP_PKEY_X25519, NULL, pub, 32); + if (!pkey) return false; EVP_PKEY_derive_set_peer (m_Ctx, pkey); size_t len = 32; EVP_PKEY_derive (m_Ctx, shared, &len); EVP_PKEY_free (pkey); -#else - GetEd25519 ()->ScalarMul (pub, m_PrivateKey, shared, m_Ctx); -#endif - } - + return true; + } + void X25519Keys::GetPrivateKey (uint8_t * priv) const { -#if OPENSSL_X25519 size_t len = 32; EVP_PKEY_get_raw_private_key (m_Pkey, priv, &len); -#else - memcpy (priv, m_PrivateKey, 32); -#endif + } + + void X25519Keys::SetPrivateKey (const uint8_t * priv, bool calculatePublic) + { + if (m_Ctx) EVP_PKEY_CTX_free (m_Ctx); + if (m_Pkey) EVP_PKEY_free (m_Pkey); + m_Pkey = EVP_PKEY_new_raw_private_key (EVP_PKEY_X25519, NULL, priv, 32); + m_Ctx = EVP_PKEY_CTX_new (m_Pkey, NULL); + if (calculatePublic) + { + size_t len = 32; + EVP_PKEY_get_raw_public_key (m_Pkey, m_PublicKey, &len); + } } // ElGamal - void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) + void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted) { + BN_CTX * ctx = BN_CTX_new (); BN_CTX_start (ctx); // everything, but a, because a might come from table BIGNUM * k = BN_CTX_get (ctx); @@ -368,7 +358,7 @@ namespace crypto BIGNUM * b1 = BN_CTX_get (ctx); BIGNUM * b = BN_CTX_get (ctx); // select random k -#if defined(__x86_64__) +#if IS_X86_64 BN_rand (k, ELGAMAL_FULL_EXPONENT_NUM_BITS, -1, 1); // full exponent for x64 #else BN_rand (k, ELGAMAL_SHORT_EXPONENT_NUM_BITS, -1, 1); // short exponent of 226 bits @@ -396,37 +386,32 @@ namespace crypto BN_bin2bn (m, 255, b); BN_mod_mul (b, b1, b, elgp, ctx); // copy a and b - if (zeroPadding) - { - encrypted[0] = 0; - bn2buf (a, encrypted + 1, 256); - encrypted[257] = 0; - bn2buf (b, encrypted + 258, 256); - } - else - { - bn2buf (a, encrypted, 256); - bn2buf (b, encrypted + 256, 256); - } + encrypted[0] = 0; + bn2buf (a, encrypted + 1, 256); + encrypted[257] = 0; + bn2buf (b, encrypted + 258, 256); + BN_free (a); BN_CTX_end (ctx); + BN_CTX_free (ctx); } - bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, - uint8_t * data, BN_CTX * ctx, bool zeroPadding) + bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, uint8_t * data) { + BN_CTX * ctx = BN_CTX_new (); BN_CTX_start (ctx); BIGNUM * x = BN_CTX_get (ctx), * a = BN_CTX_get (ctx), * b = BN_CTX_get (ctx); BN_bin2bn (key, 256, x); BN_sub (x, elgp, x); BN_sub_word (x, 1); // x = elgp - x- 1 - BN_bin2bn (zeroPadding ? encrypted + 1 : encrypted, 256, a); - BN_bin2bn (zeroPadding ? encrypted + 258 : encrypted + 256, 256, b); + BN_bin2bn (encrypted + 1, 256, a); + BN_bin2bn (encrypted + 258, 256, b); // m = b*(a^x mod p) mod p BN_mod_exp (x, a, x, elgp, ctx); BN_mod_mul (b, b, x, elgp, ctx); uint8_t m[255]; bn2buf (b, m, 255); BN_CTX_end (ctx); + BN_CTX_free (ctx); uint8_t hash[32]; SHA256 (m + 33, 222, hash); if (memcmp (m + 1, hash, 32)) @@ -440,7 +425,7 @@ namespace crypto void GenerateElGamalKeyPair (uint8_t * priv, uint8_t * pub) { -#if defined(__x86_64__) || defined(__i386__) || defined(_MSC_VER) +#if IS_X86 || defined(_MSC_VER) RAND_bytes (priv, 256); #else // lower 226 bits (28 bytes and 2 bits) only. short exponent @@ -460,8 +445,9 @@ namespace crypto } // ECIES - void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) + void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted) { + BN_CTX * ctx = BN_CTX_new (); BN_CTX_start (ctx); BIGNUM * q = BN_CTX_get (ctx); EC_GROUP_get_order(curve, q, ctx); @@ -473,20 +459,11 @@ namespace crypto EC_POINT_mul (curve, p, k, nullptr, nullptr, ctx); BIGNUM * x = BN_CTX_get (ctx), * y = BN_CTX_get (ctx); EC_POINT_get_affine_coordinates_GFp (curve, p, x, y, nullptr); - if (zeroPadding) - { - encrypted[0] = 0; - bn2buf (x, encrypted + 1, len); - bn2buf (y, encrypted + 1 + len, len); - RAND_bytes (encrypted + 1 + 2*len, 256 - 2*len); - } - else - { - bn2buf (x, encrypted, len); - bn2buf (y, encrypted + len, len); - RAND_bytes (encrypted + 2*len, 256 - 2*len); - } - // ecryption key and iv + encrypted[0] = 0; + bn2buf (x, encrypted + 1, len); + bn2buf (y, encrypted + 1 + len, len); + RAND_bytes (encrypted + 1 + 2*len, 256 - 2*len); + // encryption key and iv EC_POINT_mul (curve, p, nullptr, key, k, ctx); EC_POINT_get_affine_coordinates_GFp (curve, p, x, y, nullptr); uint8_t keyBuf[64], iv[64], shared[32]; @@ -501,37 +478,25 @@ namespace crypto // encrypt CBCEncryption encryption; encryption.SetKey (shared); - encryption.SetIV (iv); - if (zeroPadding) - { - encrypted[257] = 0; - encryption.Encrypt (m, 256, encrypted + 258); - } - else - encryption.Encrypt (m, 256, encrypted + 256); + encrypted[257] = 0; + encryption.Encrypt (m, 256, iv, encrypted + 258); EC_POINT_free (p); BN_CTX_end (ctx); + BN_CTX_free (ctx); } - bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding) + bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data) { bool ret = true; + BN_CTX * ctx = BN_CTX_new (); BN_CTX_start (ctx); BIGNUM * q = BN_CTX_get (ctx); EC_GROUP_get_order(curve, q, ctx); int len = BN_num_bytes (q); // point for shared secret BIGNUM * x = BN_CTX_get (ctx), * y = BN_CTX_get (ctx); - if (zeroPadding) - { - BN_bin2bn (encrypted + 1, len, x); - BN_bin2bn (encrypted + 1 + len, len, y); - } - else - { - BN_bin2bn (encrypted, len, x); - BN_bin2bn (encrypted + len, len, y); - } + BN_bin2bn (encrypted + 1, len, x); + BN_bin2bn (encrypted + 1 + len, len, y); auto p = EC_POINT_new (curve); if (EC_POINT_set_affine_coordinates_GFp (curve, p, x, y, nullptr)) { @@ -547,11 +512,7 @@ namespace crypto uint8_t m[256]; CBCDecryption decryption; decryption.SetKey (shared); - decryption.SetIV (iv); - if (zeroPadding) - decryption.Decrypt (encrypted + 258, 256, m); - else - decryption.Decrypt (encrypted + 256, 256, m); + decryption.Decrypt (encrypted + 258, 256, iv, m); // verify and copy uint8_t hash[32]; SHA256 (m + 33, 222, hash); @@ -571,6 +532,7 @@ namespace crypto EC_POINT_free (p); BN_CTX_end (ctx); + BN_CTX_free (ctx); return ret; } @@ -587,515 +549,115 @@ namespace crypto BN_CTX_free (ctx); } -// HMAC - const uint64_t IPAD = 0x3636363636363636; - const uint64_t OPAD = 0x5C5C5C5C5C5C5C5C; - - - static const uint64_t ipads[] = { IPAD, IPAD, IPAD, IPAD }; - static const uint64_t opads[] = { OPAD, OPAD, OPAD, OPAD }; - - void HMACMD5Digest (uint8_t * msg, size_t len, const MACKey& key, uint8_t * digest) - // key is 32 bytes - // digest is 16 bytes - // block size is 64 bytes - { - uint64_t buf[256]; - uint64_t hash[12]; // 96 bytes -#ifdef __AVX__ - if(i2p::cpu::avx) - { - __asm__ - ( - "vmovups %[key], %%ymm0 \n" - "vmovups %[ipad], %%ymm1 \n" - "vmovups %%ymm1, 32(%[buf]) \n" - "vxorps %%ymm0, %%ymm1, %%ymm1 \n" - "vmovups %%ymm1, (%[buf]) \n" - "vmovups %[opad], %%ymm1 \n" - "vmovups %%ymm1, 32(%[hash]) \n" - "vxorps %%ymm0, %%ymm1, %%ymm1 \n" - "vmovups %%ymm1, (%[hash]) \n" - "vzeroall \n" // end of AVX - "movups %%xmm0, 80(%[hash]) \n" // zero last 16 bytes - : - : [key]"m"(*(const uint8_t *)key), [ipad]"m"(*ipads), [opad]"m"(*opads), - [buf]"r"(buf), [hash]"r"(hash) - : "memory", "%xmm0" // TODO: change to %ymm0 later - ); - } - else -#endif - { - // ikeypad - buf[0] = key.GetLL ()[0] ^ IPAD; - buf[1] = key.GetLL ()[1] ^ IPAD; - buf[2] = key.GetLL ()[2] ^ IPAD; - buf[3] = key.GetLL ()[3] ^ IPAD; - buf[4] = IPAD; - buf[5] = IPAD; - buf[6] = IPAD; - buf[7] = IPAD; - // okeypad - hash[0] = key.GetLL ()[0] ^ OPAD; - hash[1] = key.GetLL ()[1] ^ OPAD; - hash[2] = key.GetLL ()[2] ^ OPAD; - hash[3] = key.GetLL ()[3] ^ OPAD; - hash[4] = OPAD; - hash[5] = OPAD; - hash[6] = OPAD; - hash[7] = OPAD; - // fill last 16 bytes with zeros (first hash size assumed 32 bytes in I2P) - memset (hash + 10, 0, 16); - } - - // concatenate with msg - memcpy (buf + 8, msg, len); - // calculate first hash - MD5((uint8_t *)buf, len + 64, (uint8_t *)(hash + 8)); // 16 bytes - - // calculate digest - MD5((uint8_t *)hash, 96, digest); - } - // AES -#ifdef __AES__ - #ifdef ARM64AES - void init_aesenc(void){ - // TODO: Implementation - } - - #endif - - #define KeyExpansion256(round0,round1) \ - "pshufd $0xff, %%xmm2, %%xmm2 \n" \ - "movaps %%xmm1, %%xmm4 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm1 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm1 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm1 \n" \ - "pxor %%xmm2, %%xmm1 \n" \ - "movaps %%xmm1, "#round0"(%[sched]) \n" \ - "aeskeygenassist $0, %%xmm1, %%xmm4 \n" \ - "pshufd $0xaa, %%xmm4, %%xmm2 \n" \ - "movaps %%xmm3, %%xmm4 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm3 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm3 \n" \ - "pslldq $4, %%xmm4 \n" \ - "pxor %%xmm4, %%xmm3 \n" \ - "pxor %%xmm2, %%xmm3 \n" \ - "movaps %%xmm3, "#round1"(%[sched]) \n" -#endif - -#ifdef __AES__ - void ECBCryptoAESNI::ExpandKey (const AESKey& key) + ECBEncryption::ECBEncryption () { - __asm__ - ( - "movups (%[key]), %%xmm1 \n" - "movups 16(%[key]), %%xmm3 \n" - "movaps %%xmm1, (%[sched]) \n" - "movaps %%xmm3, 16(%[sched]) \n" - "aeskeygenassist $1, %%xmm3, %%xmm2 \n" - KeyExpansion256(32,48) - "aeskeygenassist $2, %%xmm3, %%xmm2 \n" - KeyExpansion256(64,80) - "aeskeygenassist $4, %%xmm3, %%xmm2 \n" - KeyExpansion256(96,112) - "aeskeygenassist $8, %%xmm3, %%xmm2 \n" - KeyExpansion256(128,144) - "aeskeygenassist $16, %%xmm3, %%xmm2 \n" - KeyExpansion256(160,176) - "aeskeygenassist $32, %%xmm3, %%xmm2 \n" - KeyExpansion256(192,208) - "aeskeygenassist $64, %%xmm3, %%xmm2 \n" - // key expansion final - "pshufd $0xff, %%xmm2, %%xmm2 \n" - "movaps %%xmm1, %%xmm4 \n" - "pslldq $4, %%xmm4 \n" - "pxor %%xmm4, %%xmm1 \n" - "pslldq $4, %%xmm4 \n" - "pxor %%xmm4, %%xmm1 \n" - "pslldq $4, %%xmm4 \n" - "pxor %%xmm4, %%xmm1 \n" - "pxor %%xmm2, %%xmm1 \n" - "movups %%xmm1, 224(%[sched]) \n" - : // output - : [key]"r"((const uint8_t *)key), [sched]"r"(GetKeySchedule ()) // input - : "%xmm1", "%xmm2", "%xmm3", "%xmm4", "memory" // clogged - ); + m_Ctx = EVP_CIPHER_CTX_new (); } -#endif - - -#ifdef __AES__ - #define EncryptAES256(sched) \ - "pxor (%["#sched"]), %%xmm0 \n" \ - "aesenc 16(%["#sched"]), %%xmm0 \n" \ - "aesenc 32(%["#sched"]), %%xmm0 \n" \ - "aesenc 48(%["#sched"]), %%xmm0 \n" \ - "aesenc 64(%["#sched"]), %%xmm0 \n" \ - "aesenc 80(%["#sched"]), %%xmm0 \n" \ - "aesenc 96(%["#sched"]), %%xmm0 \n" \ - "aesenc 112(%["#sched"]), %%xmm0 \n" \ - "aesenc 128(%["#sched"]), %%xmm0 \n" \ - "aesenc 144(%["#sched"]), %%xmm0 \n" \ - "aesenc 160(%["#sched"]), %%xmm0 \n" \ - "aesenc 176(%["#sched"]), %%xmm0 \n" \ - "aesenc 192(%["#sched"]), %%xmm0 \n" \ - "aesenc 208(%["#sched"]), %%xmm0 \n" \ - "aesenclast 224(%["#sched"]), %%xmm0 \n" -#endif - - void ECBEncryption::Encrypt (const ChipherBlock * in, ChipherBlock * out) + + ECBEncryption::~ECBEncryption () { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[in]), %%xmm0 \n" - EncryptAES256(sched) - "movups %%xmm0, (%[out]) \n" - : : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory" - ); - } - else -#endif - { - AES_encrypt (in->buf, out->buf, &m_Key); - } + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + void ECBEncryption::Encrypt (const uint8_t * in, uint8_t * out) + { + EVP_EncryptInit_ex (m_Ctx, EVP_aes_256_ecb(), NULL, m_Key, NULL); + EVP_CIPHER_CTX_set_padding (m_Ctx, 0); + int len; + EVP_EncryptUpdate (m_Ctx, out, &len, in, 16); + EVP_EncryptFinal_ex (m_Ctx, out + len, &len); } -#ifdef __AES__ - #define DecryptAES256(sched) \ - "pxor 224(%["#sched"]), %%xmm0 \n" \ - "aesdec 208(%["#sched"]), %%xmm0 \n" \ - "aesdec 192(%["#sched"]), %%xmm0 \n" \ - "aesdec 176(%["#sched"]), %%xmm0 \n" \ - "aesdec 160(%["#sched"]), %%xmm0 \n" \ - "aesdec 144(%["#sched"]), %%xmm0 \n" \ - "aesdec 128(%["#sched"]), %%xmm0 \n" \ - "aesdec 112(%["#sched"]), %%xmm0 \n" \ - "aesdec 96(%["#sched"]), %%xmm0 \n" \ - "aesdec 80(%["#sched"]), %%xmm0 \n" \ - "aesdec 64(%["#sched"]), %%xmm0 \n" \ - "aesdec 48(%["#sched"]), %%xmm0 \n" \ - "aesdec 32(%["#sched"]), %%xmm0 \n" \ - "aesdec 16(%["#sched"]), %%xmm0 \n" \ - "aesdeclast (%["#sched"]), %%xmm0 \n" -#endif - - void ECBDecryption::Decrypt (const ChipherBlock * in, ChipherBlock * out) + ECBDecryption::ECBDecryption () { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[in]), %%xmm0 \n" - DecryptAES256(sched) - "movups %%xmm0, (%[out]) \n" - : : [sched]"r"(GetKeySchedule ()), [in]"r"(in), [out]"r"(out) : "%xmm0", "memory" - ); - } - else -#endif - { - AES_decrypt (in->buf, out->buf, &m_Key); - } + m_Ctx = EVP_CIPHER_CTX_new (); } - -#ifdef __AES__ - #define CallAESIMC(offset) \ - "movaps "#offset"(%[shed]), %%xmm0 \n" \ - "aesimc %%xmm0, %%xmm0 \n" \ - "movaps %%xmm0, "#offset"(%[shed]) \n" -#endif - - void ECBEncryption::SetKey (const AESKey& key) + + ECBDecryption::~ECBDecryption () { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - ExpandKey (key); - } - else -#endif - { - AES_set_encrypt_key (key, 256, &m_Key); - } - } - - void ECBDecryption::SetKey (const AESKey& key) + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + void ECBDecryption::Decrypt (const uint8_t * in, uint8_t * out) { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - ExpandKey (key); // expand encryption key first - // then invert it using aesimc - __asm__ - ( - CallAESIMC(16) - CallAESIMC(32) - CallAESIMC(48) - CallAESIMC(64) - CallAESIMC(80) - CallAESIMC(96) - CallAESIMC(112) - CallAESIMC(128) - CallAESIMC(144) - CallAESIMC(160) - CallAESIMC(176) - CallAESIMC(192) - CallAESIMC(208) - : : [shed]"r"(GetKeySchedule ()) : "%xmm0", "memory" - ); - } - else -#endif - { - AES_set_decrypt_key (key, 256, &m_Key); - } + EVP_DecryptInit_ex (m_Ctx, EVP_aes_256_ecb(), NULL, m_Key, NULL); + EVP_CIPHER_CTX_set_padding (m_Ctx, 0); + int len; + EVP_DecryptUpdate (m_Ctx, out, &len, in, 16); + EVP_DecryptFinal_ex (m_Ctx, out + len, &len); } - void CBCEncryption::Encrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out) - { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[iv]), %%xmm1 \n" - "1: \n" - "movups (%[in]), %%xmm0 \n" - "pxor %%xmm1, %%xmm0 \n" - EncryptAES256(sched) - "movaps %%xmm0, %%xmm1 \n" - "movups %%xmm0, (%[out]) \n" - "add $16, %[in] \n" - "add $16, %[out] \n" - "dec %[num] \n" - "jnz 1b \n" - "movups %%xmm1, (%[iv]) \n" - : - : [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()), - [in]"r"(in), [out]"r"(out), [num]"r"(numBlocks) - : "%xmm0", "%xmm1", "cc", "memory" - ); - } - else -#endif - { - for (int i = 0; i < numBlocks; i++) - { - *m_LastBlock.GetChipherBlock () ^= in[i]; - m_ECBEncryption.Encrypt (m_LastBlock.GetChipherBlock (), m_LastBlock.GetChipherBlock ()); - out[i] = *m_LastBlock.GetChipherBlock (); - } - } + CBCEncryption::CBCEncryption () + { + m_Ctx = EVP_CIPHER_CTX_new (); } - - void CBCEncryption::Encrypt (const uint8_t * in, std::size_t len, uint8_t * out) + + CBCEncryption::~CBCEncryption () + { + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + void CBCEncryption::Encrypt (const uint8_t * in, size_t len, const uint8_t * iv, uint8_t * out) { // len/16 - int numBlocks = len >> 4; - if (numBlocks > 0) - Encrypt (numBlocks, (const ChipherBlock *)in, (ChipherBlock *)out); + EVP_EncryptInit_ex (m_Ctx, EVP_aes_256_cbc(), NULL, m_Key, iv); + EVP_CIPHER_CTX_set_padding (m_Ctx, 0); + int l; + EVP_EncryptUpdate (m_Ctx, out, &l, in, len); + EVP_EncryptFinal_ex (m_Ctx, out + l, &l); } - void CBCEncryption::Encrypt (const uint8_t * in, uint8_t * out) - { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[iv]), %%xmm1 \n" - "movups (%[in]), %%xmm0 \n" - "pxor %%xmm1, %%xmm0 \n" - EncryptAES256(sched) - "movups %%xmm0, (%[out]) \n" - "movups %%xmm0, (%[iv]) \n" - : - : [iv]"r"((uint8_t *)m_LastBlock), [sched]"r"(m_ECBEncryption.GetKeySchedule ()), - [in]"r"(in), [out]"r"(out) - : "%xmm0", "%xmm1", "memory" - ); - } - else -#endif - Encrypt (1, (const ChipherBlock *)in, (ChipherBlock *)out); + CBCDecryption::CBCDecryption () + { + m_Ctx = EVP_CIPHER_CTX_new (); } - - void CBCDecryption::Decrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out) + + CBCDecryption::~CBCDecryption () { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[iv]), %%xmm1 \n" - "1: \n" - "movups (%[in]), %%xmm0 \n" - "movaps %%xmm0, %%xmm2 \n" - DecryptAES256(sched) - "pxor %%xmm1, %%xmm0 \n" - "movups %%xmm0, (%[out]) \n" - "movaps %%xmm2, %%xmm1 \n" - "add $16, %[in] \n" - "add $16, %[out] \n" - "dec %[num] \n" - "jnz 1b \n" - "movups %%xmm1, (%[iv]) \n" - : - : [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()), - [in]"r"(in), [out]"r"(out), [num]"r"(numBlocks) - : "%xmm0", "%xmm1", "%xmm2", "cc", "memory" - ); - } - else -#endif - { - for (int i = 0; i < numBlocks; i++) - { - ChipherBlock tmp = in[i]; - m_ECBDecryption.Decrypt (in + i, out + i); - out[i] ^= *m_IV.GetChipherBlock (); - *m_IV.GetChipherBlock () = tmp; - } - } - } - - void CBCDecryption::Decrypt (const uint8_t * in, std::size_t len, uint8_t * out) + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + void CBCDecryption::Decrypt (const uint8_t * in, size_t len, const uint8_t * iv, uint8_t * out) { - int numBlocks = len >> 4; - if (numBlocks > 0) - Decrypt (numBlocks, (const ChipherBlock *)in, (ChipherBlock *)out); - } - - void CBCDecryption::Decrypt (const uint8_t * in, uint8_t * out) - { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - "movups (%[iv]), %%xmm1 \n" - "movups (%[in]), %%xmm0 \n" - "movups %%xmm0, (%[iv]) \n" - DecryptAES256(sched) - "pxor %%xmm1, %%xmm0 \n" - "movups %%xmm0, (%[out]) \n" - : - : [iv]"r"((uint8_t *)m_IV), [sched]"r"(m_ECBDecryption.GetKeySchedule ()), - [in]"r"(in), [out]"r"(out) - : "%xmm0", "%xmm1", "memory" - ); - } - else -#endif - Decrypt (1, (const ChipherBlock *)in, (ChipherBlock *)out); + // len/16 + EVP_DecryptInit_ex (m_Ctx, EVP_aes_256_cbc(), NULL, m_Key, iv); + EVP_CIPHER_CTX_set_padding (m_Ctx, 0); + int l; + EVP_DecryptUpdate (m_Ctx, out, &l, in, len); + EVP_DecryptFinal_ex (m_Ctx, out + l, &l); } void TunnelEncryption::Encrypt (const uint8_t * in, uint8_t * out) { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - // encrypt IV - "movups (%[in]), %%xmm0 \n" - EncryptAES256(sched_iv) - "movaps %%xmm0, %%xmm1 \n" - // double IV encryption - EncryptAES256(sched_iv) - "movups %%xmm0, (%[out]) \n" - // encrypt data, IV is xmm1 - "1: \n" - "add $16, %[in] \n" - "add $16, %[out] \n" - "movups (%[in]), %%xmm0 \n" - "pxor %%xmm1, %%xmm0 \n" - EncryptAES256(sched_l) - "movaps %%xmm0, %%xmm1 \n" - "movups %%xmm0, (%[out]) \n" - "dec %[num] \n" - "jnz 1b \n" - : - : [sched_iv]"r"(m_IVEncryption.GetKeySchedule ()), [sched_l]"r"(m_LayerEncryption.ECB().GetKeySchedule ()), - [in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes - : "%xmm0", "%xmm1", "cc", "memory" - ); - } - else -#endif - { - m_IVEncryption.Encrypt ((const ChipherBlock *)in, (ChipherBlock *)out); // iv - m_LayerEncryption.SetIV (out); - m_LayerEncryption.Encrypt (in + 16, i2p::tunnel::TUNNEL_DATA_ENCRYPTED_SIZE, out + 16); // data - m_IVEncryption.Encrypt ((ChipherBlock *)out, (ChipherBlock *)out); // double iv - } + uint8_t iv[16]; + m_IVEncryption.Encrypt (in, iv); // iv + m_LayerEncryption.Encrypt (in + 16, i2p::tunnel::TUNNEL_DATA_ENCRYPTED_SIZE, iv, out + 16); // data + m_IVEncryption.Encrypt (iv, out); // double iv } void TunnelDecryption::Decrypt (const uint8_t * in, uint8_t * out) { -#ifdef __AES__ - if(i2p::cpu::aesni) - { - __asm__ - ( - // decrypt IV - "movups (%[in]), %%xmm0 \n" - DecryptAES256(sched_iv) - "movaps %%xmm0, %%xmm1 \n" - // double IV encryption - DecryptAES256(sched_iv) - "movups %%xmm0, (%[out]) \n" - // decrypt data, IV is xmm1 - "1: \n" - "add $16, %[in] \n" - "add $16, %[out] \n" - "movups (%[in]), %%xmm0 \n" - "movaps %%xmm0, %%xmm2 \n" - DecryptAES256(sched_l) - "pxor %%xmm1, %%xmm0 \n" - "movups %%xmm0, (%[out]) \n" - "movaps %%xmm2, %%xmm1 \n" - "dec %[num] \n" - "jnz 1b \n" - : - : [sched_iv]"r"(m_IVDecryption.GetKeySchedule ()), [sched_l]"r"(m_LayerDecryption.ECB().GetKeySchedule ()), - [in]"r"(in), [out]"r"(out), [num]"r"(63) // 63 blocks = 1008 bytes - : "%xmm0", "%xmm1", "%xmm2", "cc", "memory" - ); - } - else -#endif - { - m_IVDecryption.Decrypt ((const ChipherBlock *)in, (ChipherBlock *)out); // iv - m_LayerDecryption.SetIV (out); - m_LayerDecryption.Decrypt (in + 16, i2p::tunnel::TUNNEL_DATA_ENCRYPTED_SIZE, out + 16); // data - m_IVDecryption.Decrypt ((ChipherBlock *)out, (ChipherBlock *)out); // double iv - } + uint8_t iv[16]; + m_IVDecryption.Decrypt (in, iv); // iv + m_LayerDecryption.Decrypt (in + 16, i2p::tunnel::TUNNEL_DATA_ENCRYPTED_SIZE, iv, out + 16); // data + m_IVDecryption.Decrypt (iv, out); // double iv } // AEAD/ChaCha20/Poly1305 - bool AEADChaCha20Poly1305 (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len, bool encrypt) + static bool AEADChaCha20Poly1305 (EVP_CIPHER_CTX * ctx, const uint8_t * msg, size_t msgLen, + const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len, bool encrypt) { - if (len < msgLen) return false; + if (!ctx || len < msgLen) return false; if (encrypt && len < msgLen + 16) return false; bool ret = true; -#if OPENSSL_AEAD_CHACHA20_POLY1305 int outlen = 0; - EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new (); if (encrypt) { EVP_EncryptInit_ex(ctx, EVP_chacha20_poly1305(), 0, 0, 0); @@ -1103,11 +665,20 @@ namespace crypto EVP_EncryptInit_ex(ctx, NULL, NULL, key, nonce); EVP_EncryptUpdate(ctx, NULL, &outlen, ad, adLen); EVP_EncryptUpdate(ctx, buf, &outlen, msg, msgLen); - EVP_EncryptFinal_ex(ctx, buf, &outlen); + EVP_EncryptFinal_ex(ctx, buf + outlen, &outlen); EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, 16, buf + msgLen); } else { +#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x4000000fL + std::vector m(msgLen + 16); + if (msg == buf) + { + // we have to use different buffers otherwise verification fails + memcpy (m.data (), msg, msgLen + 16); + msg = m.data (); + } +#endif EVP_DecryptInit_ex(ctx, EVP_chacha20_poly1305(), 0, 0, 0); EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, 12, 0); EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, 16, (uint8_t *)(msg + msgLen)); @@ -1116,167 +687,267 @@ namespace crypto EVP_DecryptUpdate(ctx, buf, &outlen, msg, msgLen); ret = EVP_DecryptFinal_ex(ctx, buf + outlen, &outlen) > 0; } - - EVP_CIPHER_CTX_free (ctx); -#else - chacha::Chacha20State state; - // generate one time poly key - chacha::Chacha20Init (state, nonce, key, 0); - uint64_t polyKey[8]; - memset(polyKey, 0, sizeof(polyKey)); - chacha::Chacha20Encrypt (state, (uint8_t *)polyKey, 64); - // create Poly1305 hash - Poly1305 polyHash (polyKey); - if (!ad) adLen = 0; - uint8_t padding[16]; memset (padding, 0, 16); - if (ad) - { - polyHash.Update (ad, adLen);// additional authenticated data - auto rem = adLen & 0x0F; // %16 - if (rem) - { - // padding1 - rem = 16 - rem; - polyHash.Update (padding, rem); - } - } - // encrypt/decrypt data and add to hash - Chacha20SetCounter (state, 1); - if (buf != msg) - memcpy (buf, msg, msgLen); - if (encrypt) - { - chacha::Chacha20Encrypt (state, buf, msgLen); // encrypt - polyHash.Update (buf, msgLen); // after encryption - } - else - { - polyHash.Update (buf, msgLen); // before decryption - chacha::Chacha20Encrypt (state, buf, msgLen); // decrypt - } - - auto rem = msgLen & 0x0F; // %16 - if (rem) - { - // padding2 - rem = 16 - rem; - polyHash.Update (padding, rem); - } - // adLen and msgLen - htole64buf (padding, adLen); - htole64buf (padding + 8, msgLen); - polyHash.Update (padding, 16); - - if (encrypt) - // calculate Poly1305 tag and write in after encrypted data - polyHash.Finish ((uint64_t *)(buf + msgLen)); - else - { - uint64_t tag[4]; - // calculate Poly1305 tag - polyHash.Finish (tag); - if (memcmp (tag, msg + msgLen, 16)) ret = false; // compare with provided - } -#endif return ret; } - void AEADChaCha20Poly1305Encrypt (const std::vector >& bufs, const uint8_t * key, const uint8_t * nonce, uint8_t * mac) + bool AEADChaCha20Poly1305 (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len, bool encrypt) { - if (bufs.empty ()) return; -#if OPENSSL_AEAD_CHACHA20_POLY1305 - int outlen = 0; - EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new (); - EVP_EncryptInit_ex(ctx, EVP_chacha20_poly1305(), 0, 0, 0); - EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, 12, 0); - EVP_EncryptInit_ex(ctx, NULL, NULL, key, nonce); - for (const auto& it: bufs) - EVP_EncryptUpdate(ctx, it.first, &outlen, it.first, it.second); - EVP_EncryptFinal_ex(ctx, NULL, &outlen); - EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, 16, mac); + EVP_CIPHER_CTX * ctx = EVP_CIPHER_CTX_new (); + auto ret = AEADChaCha20Poly1305 (ctx, msg, msgLen, ad, adLen, key, nonce, buf, len, encrypt); EVP_CIPHER_CTX_free (ctx); -#else - chacha::Chacha20State state; - // generate one time poly key - chacha::Chacha20Init (state, nonce, key, 0); - uint64_t polyKey[8]; - memset(polyKey, 0, sizeof(polyKey)); - chacha::Chacha20Encrypt (state, (uint8_t *)polyKey, 64); - Poly1305 polyHash (polyKey); - // encrypt buffers - Chacha20SetCounter (state, 1); - size_t size = 0; - for (const auto& it: bufs) - { - chacha::Chacha20Encrypt (state, it.first, it.second); - polyHash.Update (it.first, it.second); // after encryption - size += it.second; - } - // padding - uint8_t padding[16]; - memset (padding, 0, 16); - auto rem = size & 0x0F; // %16 - if (rem) - { - // padding2 - rem = 16 - rem; - polyHash.Update (padding, rem); - } - // adLen and msgLen - // adLen is always zero - htole64buf (padding + 8, size); - polyHash.Update (padding, 16); - // MAC - polyHash.Finish ((uint64_t *)mac); -#endif + return ret; } - void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out) + AEADChaCha20Poly1305Encryptor::AEADChaCha20Poly1305Encryptor () + { + m_Ctx = EVP_CIPHER_CTX_new (); + } + + AEADChaCha20Poly1305Encryptor::~AEADChaCha20Poly1305Encryptor () + { + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + bool AEADChaCha20Poly1305Encryptor::Encrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return AEADChaCha20Poly1305 (m_Ctx, msg, msgLen, ad, adLen, key, nonce, buf, len, true); + } + + void AEADChaCha20Poly1305Encryptor::Encrypt (const std::vector >& bufs, + const uint8_t * key, const uint8_t * nonce, uint8_t * mac) + { + if (bufs.empty ()) return; + int outlen = 0; + EVP_EncryptInit_ex(m_Ctx, EVP_chacha20_poly1305(), 0, 0, 0); + EVP_CIPHER_CTX_ctrl(m_Ctx, EVP_CTRL_AEAD_SET_IVLEN, 12, 0); + EVP_EncryptInit_ex(m_Ctx, NULL, NULL, key, nonce); + for (const auto& it: bufs) + EVP_EncryptUpdate(m_Ctx, it.first, &outlen, it.first, it.second); + EVP_EncryptFinal_ex(m_Ctx, NULL, &outlen); + EVP_CIPHER_CTX_ctrl(m_Ctx, EVP_CTRL_AEAD_GET_TAG, 16, mac); + } + + AEADChaCha20Poly1305Decryptor::AEADChaCha20Poly1305Decryptor () + { + m_Ctx = EVP_CIPHER_CTX_new (); + } + + AEADChaCha20Poly1305Decryptor::~AEADChaCha20Poly1305Decryptor () + { + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + bool AEADChaCha20Poly1305Decryptor::Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return AEADChaCha20Poly1305 (m_Ctx, msg, msgLen, ad, adLen, key, nonce, buf, len, false); + } + + static void ChaCha20 (EVP_CIPHER_CTX *ctx, const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out) { -#if OPENSSL_AEAD_CHACHA20_POLY1305 - EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new (); uint32_t iv[4]; iv[0] = htole32 (1); memcpy (iv + 1, nonce, 12); // counter | nonce EVP_EncryptInit_ex(ctx, EVP_chacha20 (), NULL, key, (const uint8_t *)iv); int outlen = 0; EVP_EncryptUpdate(ctx, out, &outlen, msg, msgLen); EVP_EncryptFinal_ex(ctx, NULL, &outlen); + } + + void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out) + { + EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new (); + ChaCha20 (ctx, msg, msgLen, key, nonce, out); EVP_CIPHER_CTX_free (ctx); -#else - chacha::Chacha20State state; - chacha::Chacha20Init (state, nonce, key, 1); - if (out != msg) memcpy (out, msg, msgLen); - chacha::Chacha20Encrypt (state, out, msgLen); -#endif } - void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out) + + ChaCha20Context::ChaCha20Context () + { + m_Ctx = EVP_CIPHER_CTX_new (); + } + + ChaCha20Context::~ChaCha20Context () + { + if (m_Ctx) + EVP_CIPHER_CTX_free (m_Ctx); + } + + void ChaCha20Context::operator ()(const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out) + { + ChaCha20 (m_Ctx, msg, msgLen, key, nonce, out); + } + + void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, + uint8_t * out, size_t outLen) { #if OPENSSL_HKDF - EVP_PKEY_CTX * pctx = EVP_PKEY_CTX_new_id (EVP_PKEY_HKDF, NULL); + EVP_PKEY_CTX * pctx = EVP_PKEY_CTX_new_id (EVP_PKEY_HKDF, nullptr); EVP_PKEY_derive_init (pctx); EVP_PKEY_CTX_set_hkdf_md (pctx, EVP_sha256()); - EVP_PKEY_CTX_set1_hkdf_salt (pctx, salt, 32); - EVP_PKEY_CTX_set1_hkdf_key (pctx, key, keyLen); + if (key && keyLen) + { + EVP_PKEY_CTX_set1_hkdf_salt (pctx, salt, 32); + EVP_PKEY_CTX_set1_hkdf_key (pctx, key, keyLen); + } + else + { + // zerolen + EVP_PKEY_CTX_hkdf_mode (pctx, EVP_PKEY_HKDEF_MODE_EXPAND_ONLY); + uint8_t tempKey[32]; unsigned int len; + HMAC(EVP_sha256(), salt, 32, nullptr, 0, tempKey, &len); + EVP_PKEY_CTX_set1_hkdf_key (pctx, tempKey, len); + } if (info.length () > 0) - EVP_PKEY_CTX_add1_hkdf_info (pctx, info.c_str (), info.length ()); - size_t outlen = 64; - EVP_PKEY_derive (pctx, out, &outlen); + EVP_PKEY_CTX_add1_hkdf_info (pctx, (const uint8_t *)info.c_str (), info.length ()); + EVP_PKEY_derive (pctx, out, &outLen); EVP_PKEY_CTX_free (pctx); #else uint8_t prk[32]; unsigned int len; - HMAC(EVP_sha256(), salt, 32, key, keyLen, prk, &len); + HMAC(EVP_sha256(), salt, 32, key, keyLen, prk, &len); auto l = info.length (); memcpy (out, info.c_str (), l); out[l] = 0x01; HMAC(EVP_sha256(), prk, 32, out, l + 1, out, &len); - memcpy (out + 32, info.c_str (), l); out[l + 32] = 0x02; - HMAC(EVP_sha256(), prk, 32, out, l + 33, out + 32, &len); + if (outLen > 32) // 64 + { + memcpy (out + 32, info.c_str (), l); out[l + 32] = 0x02; + HMAC(EVP_sha256(), prk, 32, out, l + 33, out + 32, &len); + } #endif } +// Noise + + void NoiseSymmetricState::Init (const uint8_t * ck, const uint8_t * hh, const uint8_t * pub) + { + // pub is Bob's public static key, hh = SHA256(h) + memcpy (m_CK, ck, 32); + SHA256_CTX ctx; + SHA256_Init (&ctx); + SHA256_Update (&ctx, hh, 32); + SHA256_Update (&ctx, pub, 32); + SHA256_Final (m_H, &ctx); // h = MixHash(pub) = SHA256(hh || pub) + m_N = 0; + } + + void NoiseSymmetricState::MixHash (const uint8_t * buf, size_t len) + { + SHA256_CTX ctx; + SHA256_Init (&ctx); + SHA256_Update (&ctx, m_H, 32); + SHA256_Update (&ctx, buf, len); + SHA256_Final (m_H, &ctx); + } + + void NoiseSymmetricState::MixHash (const std::vector >& bufs) + { + SHA256_CTX ctx; + SHA256_Init (&ctx); + SHA256_Update (&ctx, m_H, 32); + for (const auto& it: bufs) + SHA256_Update (&ctx, it.first, it.second); + SHA256_Final (m_H, &ctx); + } + + void NoiseSymmetricState::MixKey (const uint8_t * sharedSecret) + { + HKDF (m_CK, sharedSecret, 32, "", m_CK); + // new ck is m_CK[0:31], key is m_CK[32:63] + m_N = 0; + } + + bool NoiseSymmetricState::Encrypt (const uint8_t * in, uint8_t * out, size_t len) + { + uint8_t nonce[12]; + if (m_N) + { + memset (nonce, 0, 4); + htole64buf (nonce + 4, m_N); + } + else + memset (nonce, 0, 12); + auto ret = AEADChaCha20Poly1305 (in, len, m_H, 32, m_CK + 32, nonce, out, len + 16, true); + if (ret) m_N++; + return ret; + } + + bool NoiseSymmetricState::Decrypt (const uint8_t * in, uint8_t * out, size_t len) + { + uint8_t nonce[12]; + if (m_N) + { + memset (nonce, 0, 4); + htole64buf (nonce + 4, m_N); + } + else + memset (nonce, 0, 12); + auto ret = AEADChaCha20Poly1305 (in, len, m_H, 32, m_CK + 32, nonce, out, len, false); + if (ret) m_N++; + return ret; + } + + void InitNoiseNState (NoiseSymmetricState& state, const uint8_t * pub) + { + static constexpr char protocolName[] = "Noise_N_25519_ChaChaPoly_SHA256"; // 31 chars + static constexpr uint8_t hh[32] = + { + 0x69, 0x4d, 0x52, 0x44, 0x5a, 0x27, 0xd9, 0xad, 0xfa, 0xd2, 0x9c, 0x76, 0x32, 0x39, 0x5d, 0xc1, + 0xe4, 0x35, 0x4c, 0x69, 0xb4, 0xf9, 0x2e, 0xac, 0x8a, 0x1e, 0xe4, 0x6a, 0x9e, 0xd2, 0x15, 0x54 + }; // hh = SHA256(protocol_name || 0) + state.Init ((const uint8_t *)protocolName, hh, pub); // ck = protocol_name || 0 + } + + void InitNoiseXKState (NoiseSymmetricState& state, const uint8_t * pub) + { + static constexpr uint8_t protocolNameHash[32] = + { + 0x72, 0xe8, 0x42, 0xc5, 0x45, 0xe1, 0x80, 0x80, 0xd3, 0x9c, 0x44, 0x93, 0xbb, 0x91, 0xd7, 0xed, + 0xf2, 0x28, 0x98, 0x17, 0x71, 0x21, 0x8c, 0x1f, 0x62, 0x4e, 0x20, 0x6f, 0x28, 0xd3, 0x2f, 0x71 + }; // SHA256 ("Noise_XKaesobfse+hs2+hs3_25519_ChaChaPoly_SHA256") + static constexpr uint8_t hh[32] = + { + 0x49, 0xff, 0x48, 0x3f, 0xc4, 0x04, 0xb9, 0xb2, 0x6b, 0x11, 0x94, 0x36, 0x72, 0xff, 0x05, 0xb5, + 0x61, 0x27, 0x03, 0x31, 0xba, 0x89, 0xb8, 0xfc, 0x33, 0x15, 0x93, 0x87, 0x57, 0xdd, 0x3d, 0x1e + }; // SHA256 (protocolNameHash) + state.Init (protocolNameHash, hh, pub); + } + + void InitNoiseXKState1 (NoiseSymmetricState& state, const uint8_t * pub) + { + static constexpr uint8_t protocolNameHash[32] = + { + 0xb1, 0x37, 0x22, 0x81, 0x74, 0x23, 0xa8, 0xfd, 0xf4, 0x2d, 0xf2, 0xe6, 0x0e, 0xd1, 0xed, 0xf4, + 0x1b, 0x93, 0x07, 0x1d, 0xb1, 0xec, 0x24, 0xa3, 0x67, 0xf7, 0x84, 0xec, 0x27, 0x0d, 0x81, 0x32 + }; // SHA256 ("Noise_XKchaobfse+hs1+hs2+hs3_25519_ChaChaPoly_SHA256") + static constexpr uint8_t hh[32] = + { + 0xdc, 0x85, 0xe6, 0xaf, 0x7b, 0x02, 0x65, 0x0c, 0xf1, 0xf9, 0x0d, 0x71, 0xfb, 0xc6, 0xd4, 0x53, + 0xa7, 0xcf, 0x6d, 0xbf, 0xbd, 0x52, 0x5e, 0xa5, 0xb5, 0x79, 0x1c, 0x47, 0xb3, 0x5e, 0xbc, 0x33 + }; // SHA256 (protocolNameHash) + state.Init (protocolNameHash, hh, pub); + } + + void InitNoiseIKState (NoiseSymmetricState& state, const uint8_t * pub) + { + static constexpr uint8_t protocolNameHash[32] = + { + 0x4c, 0xaf, 0x11, 0xef, 0x2c, 0x8e, 0x36, 0x56, 0x4c, 0x53, 0xe8, 0x88, 0x85, 0x06, 0x4d, 0xba, + 0xac, 0xbe, 0x00, 0x54, 0xad, 0x17, 0x8f, 0x80, 0x79, 0xa6, 0x46, 0x82, 0x7e, 0x6e, 0xe4, 0x0c + }; // SHA256("Noise_IKelg2+hs2_25519_ChaChaPoly_SHA256"), 40 bytes + static constexpr uint8_t hh[32] = + { + 0x9c, 0xcf, 0x85, 0x2c, 0xc9, 0x3b, 0xb9, 0x50, 0x44, 0x41, 0xe9, 0x50, 0xe0, 0x1d, 0x52, 0x32, + 0x2e, 0x0d, 0x47, 0xad, 0xd1, 0xe9, 0xa5, 0x55, 0xf7, 0x55, 0xb5, 0x69, 0xae, 0x18, 0x3b, 0x5c + }; // SHA256 (protocolNameHash) + state.Init (protocolNameHash, hh, pub); + } + // init and terminate -/* std::vector > m_OpenSSLMutexes; +/* std::vector > m_OpenSSLMutexes; static void OpensslLockingCallback(int mode, int type, const char * file, int line) { if (type > 0 && (size_t)type < m_OpenSSLMutexes.size ()) @@ -1288,20 +959,15 @@ namespace crypto } }*/ - void InitCrypto (bool precomputation) { - i2p::cpu::Detect (); -#if LEGACY_OPENSSL - SSL_library_init (); -#endif /* auto numLocks = CRYPTO_num_locks(); for (int i = 0; i < numLocks; i++) m_OpenSSLMutexes.emplace_back (new std::mutex); CRYPTO_set_locking_callback (OpensslLockingCallback);*/ if (precomputation) { -#if defined(__x86_64__) +#if IS_X86_64 g_ElggTable = new BIGNUM * [ELGAMAL_FULL_EXPONENT_NUM_BYTES][255]; PrecalculateElggTable (g_ElggTable, ELGAMAL_FULL_EXPONENT_NUM_BYTES); #else @@ -1316,7 +982,7 @@ namespace crypto if (g_ElggTable) { DestroyElggTable (g_ElggTable, -#if defined(__x86_64__) +#if IS_X86_64 ELGAMAL_FULL_EXPONENT_NUM_BYTES #else ELGAMAL_SHORT_EXPONENT_NUM_BYTES @@ -1329,4 +995,3 @@ namespace crypto } } } - diff --git a/libi2pd/Crypto.h b/libi2pd/Crypto.h index 5afc4c52..125a217c 100644 --- a/libi2pd/Crypto.h +++ b/libi2pd/Crypto.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef CRYPTO_H__ #define CRYPTO_H__ @@ -13,29 +21,21 @@ #include #include #include -#include #include #include "Base.h" #include "Tag.h" -#include "CPU.h" // recognize openssl version and features -#if ((OPENSSL_VERSION_NUMBER < 0x010100000) || defined(LIBRESSL_VERSION_NUMBER)) // 1.0.2 and below or LibreSSL -# define LEGACY_OPENSSL 1 -# define X509_getm_notBefore X509_get_notBefore -# define X509_getm_notAfter X509_get_notAfter -#else -# define LEGACY_OPENSSL 0 +#if (OPENSSL_VERSION_NUMBER >= 0x010101000) // 1.1.1 # define OPENSSL_HKDF 1 -# if (OPENSSL_VERSION_NUMBER >= 0x010101000) // 1.1.1 -# define OPENSSL_EDDSA 1 -# define OPENSSL_X25519 1 -# define OPENSSL_SIPHASH 1 -# endif -# if !defined OPENSSL_NO_CHACHA && !defined OPENSSL_NO_POLY1305 // some builds might not include them -# define OPENSSL_AEAD_CHACHA20_POLY1305 1 -# endif +# define OPENSSL_EDDSA 1 +# if (!defined(LIBRESSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER != 0x030000000)) // 3.0.0, regression in SipHash, not implemented in LibreSSL +# define OPENSSL_SIPHASH 1 +# endif +# if (OPENSSL_VERSION_NUMBER >= 0x030500000) // 3.5.0 +# define OPENSSL_PQ 1 +# endif #endif namespace i2p @@ -45,209 +45,116 @@ namespace crypto bool bn2buf (const BIGNUM * bn, uint8_t * buf, size_t len); // DSA +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + EVP_PKEY * CreateDSA (BIGNUM * pubKey = nullptr, BIGNUM * privKey = nullptr); +#else DSA * CreateDSA (); +#endif // RSA const BIGNUM * GetRSAE (); - // DH - class DHKeys - { - public: - - DHKeys (); - ~DHKeys (); - - void GenerateKeys (); - const uint8_t * GetPublicKey () const { return m_PublicKey; }; - void Agree (const uint8_t * pub, uint8_t * shared); - - private: - - DH * m_DH; - uint8_t m_PublicKey[256]; - }; - // x25519 class X25519Keys { public: X25519Keys (); - X25519Keys (const uint8_t * priv, const uint8_t * pub); // for RouterContext + X25519Keys (const uint8_t * priv, const uint8_t * pub); // if pub is null, derive from priv ~X25519Keys (); void GenerateKeys (); const uint8_t * GetPublicKey () const { return m_PublicKey; }; void GetPrivateKey (uint8_t * priv) const; - void Agree (const uint8_t * pub, uint8_t * shared); + void SetPrivateKey (const uint8_t * priv, bool calculatePublic = false); + bool Agree (const uint8_t * pub, uint8_t * shared); + + bool IsElligatorIneligible () const { return m_IsElligatorIneligible; } + void SetElligatorIneligible () { m_IsElligatorIneligible = true; } private: - uint8_t m_PublicKey[32]; -#if OPENSSL_X25519 + uint8_t m_PublicKey[32]; EVP_PKEY_CTX * m_Ctx; EVP_PKEY * m_Pkey; -#else - BN_CTX * m_Ctx; - uint8_t m_PrivateKey[32]; -#endif + bool m_IsElligatorIneligible = false; // true if definitely ineligible }; - + // ElGamal - void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding = false); - bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding = false); + void ElGamalEncrypt (const uint8_t * key, const uint8_t * data, uint8_t * encrypted); // 222 bytes data, 514 bytes encrypted + bool ElGamalDecrypt (const uint8_t * key, const uint8_t * encrypted, uint8_t * data); // 514 bytes encrypted, 222 data void GenerateElGamalKeyPair (uint8_t * priv, uint8_t * pub); // ECIES - void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding = false); // 222 bytes data, 514 bytes encrypted with zeropadding, 512 without - bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding = false); + void ECIESEncrypt (const EC_GROUP * curve, const EC_POINT * key, const uint8_t * data, uint8_t * encrypted); // 222 bytes data, 514 bytes encrypted + bool ECIESDecrypt (const EC_GROUP * curve, const BIGNUM * key, const uint8_t * encrypted, uint8_t * data); // 514 bytes encrypted, 222 data void GenerateECIESKeyPair (const EC_GROUP * curve, BIGNUM *& priv, EC_POINT *& pub); - // HMAC - typedef i2p::data::Tag<32> MACKey; - void HMACMD5Digest (uint8_t * msg, size_t len, const MACKey& key, uint8_t * digest); - // AES - struct ChipherBlock - { - uint8_t buf[16]; - - void operator^=(const ChipherBlock& other) // XOR - { - if (!(((size_t)buf | (size_t)other.buf) & 0x03)) // multiple of 4 ? - { - for (int i = 0; i < 4; i++) - reinterpret_cast(buf)[i] ^= reinterpret_cast(other.buf)[i]; - } - else - { - for (int i = 0; i < 16; i++) - buf[i] ^= other.buf[i]; - } - } - }; - typedef i2p::data::Tag<32> AESKey; - - template - class AESAlignedBuffer // 16 bytes alignment - { - public: - - AESAlignedBuffer () - { - m_Buf = m_UnalignedBuffer; - uint8_t rem = ((size_t)m_Buf) & 0x0f; - if (rem) - m_Buf += (16 - rem); - } - - operator uint8_t * () { return m_Buf; }; - operator const uint8_t * () const { return m_Buf; }; - ChipherBlock * GetChipherBlock () { return (ChipherBlock *)m_Buf; }; - const ChipherBlock * GetChipherBlock () const { return (const ChipherBlock *)m_Buf; }; - - private: - - uint8_t m_UnalignedBuffer[sz + 15]; // up to 15 bytes alignment - uint8_t * m_Buf; - }; - - -#ifdef __AES__ - #ifdef ARM64AES - void init_aesenc(void) __attribute__((constructor)); - #endif - class ECBCryptoAESNI - { - public: - - uint8_t * GetKeySchedule () { return m_KeySchedule; }; - - protected: - - void ExpandKey (const AESKey& key); - - private: - - AESAlignedBuffer<240> m_KeySchedule; // 14 rounds for AES-256, 240 bytes - }; -#endif - -#ifdef __AES__ - class ECBEncryption: public ECBCryptoAESNI -#else + class ECBEncryption -#endif { public: - void SetKey (const AESKey& key); + ECBEncryption (); + ~ECBEncryption (); + + void SetKey (const uint8_t * key) { m_Key = key; }; + void Encrypt(const uint8_t * in, uint8_t * out); - void Encrypt(const ChipherBlock * in, ChipherBlock * out); + private: - private: - AES_KEY m_Key; + AESKey m_Key; + EVP_CIPHER_CTX * m_Ctx; }; -#ifdef __AES__ - class ECBDecryption: public ECBCryptoAESNI -#else class ECBDecryption -#endif { public: - void SetKey (const AESKey& key); - void Decrypt (const ChipherBlock * in, ChipherBlock * out); + ECBDecryption (); + ~ECBDecryption (); + + void SetKey (const uint8_t * key) { m_Key = key; }; + void Decrypt (const uint8_t * in, uint8_t * out); + private: - AES_KEY m_Key; + + AESKey m_Key; + EVP_CIPHER_CTX * m_Ctx; }; class CBCEncryption { public: - CBCEncryption () { memset ((uint8_t *)m_LastBlock, 0, 16); }; - - void SetKey (const AESKey& key) { m_ECBEncryption.SetKey (key); }; // 32 bytes - void SetIV (const uint8_t * iv) { memcpy ((uint8_t *)m_LastBlock, iv, 16); }; // 16 bytes - void GetIV (uint8_t * iv) const { memcpy (iv, (const uint8_t *)m_LastBlock, 16); }; - - void Encrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out); - void Encrypt (const uint8_t * in, std::size_t len, uint8_t * out); - void Encrypt (const uint8_t * in, uint8_t * out); // one block - - ECBEncryption & ECB() { return m_ECBEncryption; } + CBCEncryption (); + ~CBCEncryption (); + void SetKey (const uint8_t * key) { m_Key = key; }; // 32 bytes + void Encrypt (const uint8_t * in, size_t len, const uint8_t * iv, uint8_t * out); + private: - AESAlignedBuffer<16> m_LastBlock; - - ECBEncryption m_ECBEncryption; + AESKey m_Key; + EVP_CIPHER_CTX * m_Ctx; }; class CBCDecryption { public: - CBCDecryption () { memset ((uint8_t *)m_IV, 0, 16); }; - - void SetKey (const AESKey& key) { m_ECBDecryption.SetKey (key); }; // 32 bytes - void SetIV (const uint8_t * iv) { memcpy ((uint8_t *)m_IV, iv, 16); }; // 16 bytes - void GetIV (uint8_t * iv) const { memcpy (iv, (const uint8_t *)m_IV, 16); }; - - void Decrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out); - void Decrypt (const uint8_t * in, std::size_t len, uint8_t * out); - void Decrypt (const uint8_t * in, uint8_t * out); // one block - - ECBDecryption & ECB() { return m_ECBDecryption; } + CBCDecryption (); + ~CBCDecryption (); + + void SetKey (const uint8_t * key) { m_Key = key; }; // 32 bytes + void Decrypt (const uint8_t * in, size_t len, const uint8_t * iv, uint8_t * out); private: - AESAlignedBuffer<16> m_IV; - ECBDecryption m_ECBDecryption; + AESKey m_Key; + EVP_CIPHER_CTX * m_Ctx; }; class TunnelEncryption // with double IV encryption @@ -287,96 +194,88 @@ namespace crypto }; // AEAD/ChaCha20/Poly1305 - bool AEADChaCha20Poly1305 (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len, bool encrypt); // msgLen is len without tag - void AEADChaCha20Poly1305Encrypt (const std::vector >& bufs, const uint8_t * key, const uint8_t * nonce, uint8_t * mac); // encrypt multiple buffers with zero ad + class AEADChaCha20Poly1305Encryptor + { + public: + AEADChaCha20Poly1305Encryptor (); + ~AEADChaCha20Poly1305Encryptor (); + + bool Encrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); // msgLen is len without tag + + void Encrypt (const std::vector >& bufs, const uint8_t * key, const uint8_t * nonce, uint8_t * mac); // encrypt multiple buffers with zero ad + + private: + + EVP_CIPHER_CTX * m_Ctx; + }; + + class AEADChaCha20Poly1305Decryptor + { + public: + + AEADChaCha20Poly1305Decryptor (); + ~AEADChaCha20Poly1305Decryptor (); + + bool Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); // msgLen is len without tag + + private: + + EVP_CIPHER_CTX * m_Ctx; + }; + + bool AEADChaCha20Poly1305 (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len, bool encrypt); // msgLen is len without tag + // ChaCha20 void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out); + class ChaCha20Context + { + public: + + ChaCha20Context (); + ~ChaCha20Context (); + void operator ()(const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out); + + private: + + EVP_CIPHER_CTX * m_Ctx; + }; + // HKDF - void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out); // salt - 32, out - 64, info <= 32 + void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out, size_t outLen = 64); // salt - 32, out - 32 or 64, info <= 32 +// Noise + + struct NoiseSymmetricState + { + uint8_t m_H[32] /*h*/, m_CK[64] /*[ck, k]*/; + uint64_t m_N; + + void Init (const uint8_t * ck, const uint8_t * hh, const uint8_t * pub); + + void MixHash (const uint8_t * buf, size_t len); + void MixHash (const std::vector >& bufs); + void MixKey (const uint8_t * sharedSecret); + + bool Encrypt (const uint8_t * in, uint8_t * out, size_t len); // out length = len + 16 + bool Decrypt (const uint8_t * in, uint8_t * out, size_t len); // len without 16 bytes tag + }; + + void InitNoiseNState (NoiseSymmetricState& state, const uint8_t * pub); // Noise_N (tunnels, router) + void InitNoiseXKState (NoiseSymmetricState& state, const uint8_t * pub); // Noise_XK (NTCP2) + void InitNoiseXKState1 (NoiseSymmetricState& state, const uint8_t * pub); // Noise_XK (SSU2) + void InitNoiseIKState (NoiseSymmetricState& state, const uint8_t * pub); // Noise_IK (ratchets) + // init and terminate void InitCrypto (bool precomputation); void TerminateCrypto (); } } -// take care about openssl below 1.1.0 -#if LEGACY_OPENSSL -// define getters and setters introduced in 1.1.0 -inline int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g) - { - if (d->p) BN_free (d->p); - if (d->q) BN_free (d->q); - if (d->g) BN_free (d->g); - d->p = p; d->q = q; d->g = g; return 1; - } -inline int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key) - { - if (d->pub_key) BN_free (d->pub_key); - if (d->priv_key) BN_free (d->priv_key); - d->pub_key = pub_key; d->priv_key = priv_key; return 1; - } -inline void DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key) - { *pub_key = d->pub_key; *priv_key = d->priv_key; } -inline int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s) - { - if (sig->r) BN_free (sig->r); - if (sig->s) BN_free (sig->s); - sig->r = r; sig->s = s; return 1; - } -inline void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) - { *pr = sig->r; *ps = sig->s; } - -inline int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s) - { - if (sig->r) BN_free (sig->r); - if (sig->s) BN_free (sig->s); - sig->r = r; sig->s = s; return 1; - } -inline void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) - { *pr = sig->r; *ps = sig->s; } - -inline int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) - { - if (r->n) BN_free (r->n); - if (r->e) BN_free (r->e); - if (r->d) BN_free (r->d); - r->n = n; r->e = e; r->d = d; return 1; - } -inline void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) - { *n = r->n; *e = r->e; *d = r->d; } - -inline int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g) - { - if (dh->p) BN_free (dh->p); - if (dh->q) BN_free (dh->q); - if (dh->g) BN_free (dh->g); - dh->p = p; dh->q = q; dh->g = g; return 1; - } -inline int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key) - { - if (dh->pub_key) BN_free (dh->pub_key); - if (dh->priv_key) BN_free (dh->priv_key); - dh->pub_key = pub_key; dh->priv_key = priv_key; return 1; - } -inline void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key) - { *pub_key = dh->pub_key; *priv_key = dh->priv_key; } - -inline RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey) - { return pkey->pkey.rsa; } - -inline EVP_MD_CTX *EVP_MD_CTX_new () - { return EVP_MD_CTX_create(); } -inline void EVP_MD_CTX_free (EVP_MD_CTX *ctx) - { EVP_MD_CTX_destroy (ctx); } - -// ssl -#define TLS_method TLSv1_method - -#endif - #endif diff --git a/libi2pd/CryptoKey.cpp b/libi2pd/CryptoKey.cpp index 711d4ce6..e37d4039 100644 --- a/libi2pd/CryptoKey.cpp +++ b/libi2pd/CryptoKey.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "Log.h" #include "Gost.h" @@ -12,9 +20,9 @@ namespace crypto memcpy (m_PublicKey, pub, 256); } - void ElGamalEncryptor::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) + void ElGamalEncryptor::Encrypt (const uint8_t * data, uint8_t * encrypted) { - ElGamalEncrypt (m_PublicKey, data, encrypted, ctx, zeroPadding); + ElGamalEncrypt (m_PublicKey, data, encrypted); } ElGamalDecryptor::ElGamalDecryptor (const uint8_t * priv) @@ -22,9 +30,9 @@ namespace crypto memcpy (m_PrivateKey, priv, 256); } - bool ElGamalDecryptor::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding) + bool ElGamalDecryptor::Decrypt (const uint8_t * encrypted, uint8_t * data) { - return ElGamalDecrypt (m_PrivateKey, encrypted, data, ctx, zeroPadding); + return ElGamalDecrypt (m_PrivateKey, encrypted, data); } ECIESP256Encryptor::ECIESP256Encryptor (const uint8_t * pub) @@ -44,10 +52,10 @@ namespace crypto if (m_PublicKey) EC_POINT_free (m_PublicKey); } - void ECIESP256Encryptor::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) + void ECIESP256Encryptor::Encrypt (const uint8_t * data, uint8_t * encrypted) { if (m_Curve && m_PublicKey) - ECIESEncrypt (m_Curve, m_PublicKey, data, encrypted, ctx, zeroPadding); + ECIESEncrypt (m_Curve, m_PublicKey, data, encrypted); } ECIESP256Decryptor::ECIESP256Decryptor (const uint8_t * priv) @@ -62,10 +70,10 @@ namespace crypto if (m_PrivateKey) BN_free (m_PrivateKey); } - bool ECIESP256Decryptor::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding) + bool ECIESP256Decryptor::Decrypt (const uint8_t * encrypted, uint8_t * data) { if (m_Curve && m_PrivateKey) - return ECIESDecrypt (m_Curve, m_PrivateKey, encrypted, data, ctx, zeroPadding); + return ECIESDecrypt (m_Curve, m_PrivateKey, encrypted, data); return false; } @@ -104,10 +112,10 @@ namespace crypto if (m_PublicKey) EC_POINT_free (m_PublicKey); } - void ECIESGOSTR3410Encryptor::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) + void ECIESGOSTR3410Encryptor::Encrypt (const uint8_t * data, uint8_t * encrypted) { if (m_PublicKey) - ECIESEncrypt (GetGOSTR3410Curve (eGOSTR3410CryptoProA)->GetGroup (), m_PublicKey, data, encrypted, ctx, zeroPadding); + ECIESEncrypt (GetGOSTR3410Curve (eGOSTR3410CryptoProA)->GetGroup (), m_PublicKey, data, encrypted); } ECIESGOSTR3410Decryptor::ECIESGOSTR3410Decryptor (const uint8_t * priv) @@ -120,10 +128,10 @@ namespace crypto if (m_PrivateKey) BN_free (m_PrivateKey); } - bool ECIESGOSTR3410Decryptor::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding) + bool ECIESGOSTR3410Decryptor::Decrypt (const uint8_t * encrypted, uint8_t * data) { if (m_PrivateKey) - return ECIESDecrypt (GetGOSTR3410Curve (eGOSTR3410CryptoProA)->GetGroup (), m_PrivateKey, encrypted, data, ctx, zeroPadding); + return ECIESDecrypt (GetGOSTR3410Curve (eGOSTR3410CryptoProA)->GetGroup (), m_PrivateKey, encrypted, data); return false; } @@ -146,6 +154,48 @@ namespace crypto BN_free (x); BN_free (y); } -} -} + ECIESX25519AEADRatchetEncryptor::ECIESX25519AEADRatchetEncryptor (const uint8_t * pub) + { + memcpy (m_PublicKey, pub, 32); + } + void ECIESX25519AEADRatchetEncryptor::Encrypt (const uint8_t *, uint8_t * pub) + { + memcpy (pub, m_PublicKey, 32); + } + + ECIESX25519AEADRatchetDecryptor::ECIESX25519AEADRatchetDecryptor (const uint8_t * priv, bool calculatePublic) + { + m_StaticKeys.SetPrivateKey (priv, calculatePublic); + } + + bool ECIESX25519AEADRatchetDecryptor::Decrypt (const uint8_t * epub, uint8_t * sharedSecret) + { + return m_StaticKeys.Agree (epub, sharedSecret); + } + + void CreateECIESX25519AEADRatchetRandomKeys (uint8_t * priv, uint8_t * pub) + { + X25519Keys k; + k.GenerateKeys (); + k.GetPrivateKey (priv); + memcpy (pub, k.GetPublicKey (), 32); + } + + LocalEncryptionKey::LocalEncryptionKey (i2p::data::CryptoKeyType t): keyType(t) + { + pub.resize (GetCryptoPublicKeyLen (keyType)); + priv.resize (GetCryptoPrivateKeyLen (keyType)); + } + + void LocalEncryptionKey::GenerateKeys () + { + i2p::data::PrivateKeys::GenerateCryptoKeyPair (keyType, priv.data (), pub.data ()); + } + + void LocalEncryptionKey::CreateDecryptor () + { + decryptor = i2p::data::PrivateKeys::CreateDecryptor (keyType, priv.data ()); + } +} +} diff --git a/libi2pd/CryptoKey.h b/libi2pd/CryptoKey.h index 5584b687..b6c37ddf 100644 --- a/libi2pd/CryptoKey.h +++ b/libi2pd/CryptoKey.h @@ -1,8 +1,17 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef CRYPTO_KEY_H__ #define CRYPTO_KEY_H__ #include #include "Crypto.h" +#include "Identity.h" namespace i2p { @@ -13,7 +22,7 @@ namespace crypto public: virtual ~CryptoKeyEncryptor () {}; - virtual void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding) = 0; // 222 bytes data, 512/514 bytes encrypted + virtual void Encrypt (const uint8_t * data, uint8_t * encrypted) = 0; }; class CryptoKeyDecryptor @@ -21,7 +30,7 @@ namespace crypto public: virtual ~CryptoKeyDecryptor () {}; - virtual bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding) = 0; // 512/514 bytes encrypted, 222 bytes data + virtual bool Decrypt (const uint8_t * encrypted, uint8_t * data) = 0; virtual size_t GetPublicKeyLen () const = 0; // we need it to set key in LS2 }; @@ -31,7 +40,7 @@ namespace crypto public: ElGamalEncryptor (const uint8_t * pub); - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding); + void Encrypt (const uint8_t * data, uint8_t * encrypted) override; // 222 bytes data, 514 bytes encrypted private: @@ -43,9 +52,9 @@ namespace crypto public: ElGamalDecryptor (const uint8_t * priv); - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding); - size_t GetPublicKeyLen () const { return 256; }; - + bool Decrypt (const uint8_t * encrypted, uint8_t * data) override; // 514 bytes encrypted, 222 bytes data + size_t GetPublicKeyLen () const override { return 256; }; + private: uint8_t m_PrivateKey[256]; @@ -59,7 +68,7 @@ namespace crypto ECIESP256Encryptor (const uint8_t * pub); ~ECIESP256Encryptor (); - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding); + void Encrypt (const uint8_t * data, uint8_t * encrypted) override; private: @@ -74,9 +83,9 @@ namespace crypto ECIESP256Decryptor (const uint8_t * priv); ~ECIESP256Decryptor (); - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding); - size_t GetPublicKeyLen () const { return 64; }; - + bool Decrypt (const uint8_t * encrypted, uint8_t * data) override; + size_t GetPublicKeyLen () const override { return 64; }; + private: EC_GROUP * m_Curve; @@ -93,7 +102,7 @@ namespace crypto ECIESGOSTR3410Encryptor (const uint8_t * pub); ~ECIESGOSTR3410Encryptor (); - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx, bool zeroPadding); + void Encrypt (const uint8_t * data, uint8_t * encrypted) override; private: @@ -107,17 +116,93 @@ namespace crypto ECIESGOSTR3410Decryptor (const uint8_t * priv); ~ECIESGOSTR3410Decryptor (); - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx, bool zeroPadding); - size_t GetPublicKeyLen () const { return 64; }; - + bool Decrypt (const uint8_t * encrypted, uint8_t * data) override; + size_t GetPublicKeyLen () const override { return 64; }; + private: BIGNUM * m_PrivateKey; }; void CreateECIESGOSTR3410RandomKeys (uint8_t * priv, uint8_t * pub); + +// ECIES-X25519-AEAD-Ratchet + + class ECIESX25519AEADRatchetEncryptor: public CryptoKeyEncryptor + { + public: + + ECIESX25519AEADRatchetEncryptor (const uint8_t * pub); + ~ECIESX25519AEADRatchetEncryptor () {}; + void Encrypt (const uint8_t *, uint8_t * pub) override; + // copies m_PublicKey to pub + + private: + + uint8_t m_PublicKey[32]; + }; + + class ECIESX25519AEADRatchetDecryptor: public CryptoKeyDecryptor + { + public: + + ECIESX25519AEADRatchetDecryptor (const uint8_t * priv, bool calculatePublic = false); + ~ECIESX25519AEADRatchetDecryptor () {}; + bool Decrypt (const uint8_t * epub, uint8_t * sharedSecret) override; + // agree with static and return in sharedSecret (32 bytes) + size_t GetPublicKeyLen () const override { return 32; }; + const uint8_t * GetPubicKey () const { return m_StaticKeys.GetPublicKey (); }; + + private: + + X25519Keys m_StaticKeys; + }; + + void CreateECIESX25519AEADRatchetRandomKeys (uint8_t * priv, uint8_t * pub); // including hybrid + + constexpr size_t GetCryptoPrivateKeyLen (i2p::data::CryptoKeyType type) + { + switch (type) + { + case i2p::data::CRYPTO_KEY_TYPE_ELGAMAL: return 256; + case i2p::data::CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: return 32; + case i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: return 32; + // ML-KEM hybrid + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD: + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD: + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD: + return 32; + }; + return 0; + } + + constexpr size_t GetCryptoPublicKeyLen (i2p::data::CryptoKeyType type) + { + switch (type) + { + case i2p::data::CRYPTO_KEY_TYPE_ELGAMAL: return 256; + case i2p::data::CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: return 32; + case i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: return 32; + // ML-KEM hybrid + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD: + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD: + case i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD: + return 32; + }; + return 0; + } + + struct LocalEncryptionKey + { + std::vector pub, priv; + i2p::data::CryptoKeyType keyType; + std::shared_ptr decryptor; + + LocalEncryptionKey (i2p::data::CryptoKeyType t); + void GenerateKeys (); + void CreateDecryptor (); + }; } } #endif - diff --git a/libi2pd/CryptoWorker.h b/libi2pd/CryptoWorker.h deleted file mode 100644 index d43e356c..00000000 --- a/libi2pd/CryptoWorker.h +++ /dev/null @@ -1,81 +0,0 @@ -#ifndef CRYPTO_WORKER_H_ -#define CRYPTO_WORKER_H_ - -#include -#include -#include -#include -#include -#include - -namespace i2p -{ -namespace worker -{ - template - struct ThreadPool - { - typedef std::function ResultFunc; - typedef std::function WorkFunc; - typedef std::pair, WorkFunc> Job; - typedef std::mutex mtx_t; - typedef std::unique_lock lock_t; - typedef std::condition_variable cond_t; - ThreadPool(int workers) - { - stop = false; - if(workers > 0) - { - while(workers--) - { - threads.emplace_back([this] { - for (;;) - { - Job job; - { - lock_t lock(this->queue_mutex); - this->condition.wait( - lock, [this] { return this->stop || !this->jobs.empty(); }); - if (this->stop && this->jobs.empty()) return; - job = std::move(this->jobs.front()); - this->jobs.pop_front(); - } - ResultFunc result = job.second(); - job.first->GetService().post(result); - } - }); - } - } - }; - - void Offer(const Job & job) - { - { - lock_t lock(queue_mutex); - if (stop) return; - jobs.emplace_back(job); - } - condition.notify_one(); - } - - ~ThreadPool() - { - { - lock_t lock(queue_mutex); - stop = true; - } - condition.notify_all(); - for(auto &t: threads) t.join(); - } - - std::vector threads; - std::deque jobs; - mtx_t queue_mutex; - cond_t condition; - bool stop; - }; -} -} - - -#endif diff --git a/libi2pd/Datagram.cpp b/libi2pd/Datagram.cpp index ed87a054..732efca7 100644 --- a/libi2pd/Datagram.cpp +++ b/libi2pd/Datagram.cpp @@ -1,5 +1,12 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include -#include #include "Crypto.h" #include "Log.h" #include "TunnelBase.h" @@ -11,11 +18,16 @@ namespace i2p { namespace datagram { - DatagramDestination::DatagramDestination (std::shared_ptr owner): - m_Owner (owner.get()), - m_Receiver (nullptr) + DatagramDestination::DatagramDestination (std::shared_ptr owner, bool gzip): + m_Owner (owner), m_DefaultReceiver (nullptr), m_DefaultRawReceiver (nullptr), m_Gzip (gzip) { - m_Identity.FromBase64 (owner->GetIdentity()->ToBase64()); + if (m_Gzip) + m_Deflator.reset (new i2p::data::GzipDeflator); + + auto identityLen = m_Owner->GetIdentity ()->GetFullLen (); + m_From.resize (identityLen); + m_Owner->GetIdentity ()->ToBuffer (m_From.data (), identityLen); + m_Signature.resize (m_Owner->GetIdentity ()->GetSignatureLen ()); } DatagramDestination::~DatagramDestination () @@ -25,30 +37,53 @@ namespace datagram void DatagramDestination::SendDatagramTo(const uint8_t * payload, size_t len, const i2p::data::IdentHash & identity, uint16_t fromPort, uint16_t toPort) { - auto owner = m_Owner; - std::vector v(MAX_DATAGRAM_SIZE); - uint8_t * buf = v.data(); - auto identityLen = m_Identity.ToBuffer (buf, MAX_DATAGRAM_SIZE); - uint8_t * signature = buf + identityLen; - auto signatureLen = m_Identity.GetSignatureLen (); - uint8_t * buf1 = signature + signatureLen; - size_t headerLen = identityLen + signatureLen; - - memcpy (buf1, payload, len); - if (m_Identity.GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1) - { - uint8_t hash[32]; - SHA256(buf1, len, hash); - owner->Sign (hash, 32, signature); - } - else - owner->Sign (buf1, len, signature); - - auto msg = CreateDataMessage (buf, len + headerLen, fromPort, toPort); auto session = ObtainSession(identity); - session->SendMsg(msg); + SendDatagram (session, payload, len, fromPort, toPort); + FlushSendQueue (session); } + void DatagramDestination::SendRawDatagramTo(const uint8_t * payload, size_t len, const i2p::data::IdentHash & identity, uint16_t fromPort, uint16_t toPort) + { + auto session = ObtainSession(identity); + SendRawDatagram (session, payload, len, fromPort, toPort); + FlushSendQueue (session); + } + + std::shared_ptr DatagramDestination::GetSession(const i2p::data::IdentHash & ident) + { + return ObtainSession(ident); + } + + void DatagramDestination::SendDatagram (std::shared_ptr session, const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort) + { + if (session) + { + if (m_Owner->GetIdentity ()->GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1) + { + uint8_t hash[32]; + SHA256(payload, len, hash); + m_Owner->Sign (hash, 32, m_Signature.data ()); + } + else + m_Owner->Sign (payload, len, m_Signature.data ()); + + auto msg = CreateDataMessage ({{m_From.data (), m_From.size ()}, {m_Signature.data (), m_Signature.size ()}, {payload, len}}, + fromPort, toPort, false, !session->IsRatchets ()); // datagram + session->SendMsg(msg); + } + } + + void DatagramDestination::SendRawDatagram (std::shared_ptr session, const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort) + { + if (session) + session->SendMsg(CreateDataMessage ({{payload, len}}, fromPort, toPort, true, !session->IsRatchets ())); // raw + } + + void DatagramDestination::FlushSendQueue (std::shared_ptr session) + { + if (session) + session->FlushSendQueue (); + } void DatagramDestination::HandleDatagram (uint16_t fromPort, uint16_t toPort,uint8_t * const &buf, size_t len) { @@ -69,8 +104,7 @@ namespace datagram if (verified) { - auto h = identity.GetIdentHash(); - auto session = ObtainSession(h); + auto session = ObtainSession (identity.GetIdentHash()); session->Ack(); auto r = FindReceiver(toPort); if(r) @@ -82,41 +116,122 @@ namespace datagram LogPrint (eLogWarning, "Datagram signature verification failed"); } + void DatagramDestination::HandleRawDatagram (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + auto r = FindRawReceiver(toPort); + + if (r) + r (fromPort, toPort, buf, len); + else + LogPrint (eLogWarning, "DatagramDestination: no receiver for raw datagram"); + } + + void DatagramDestination::SetReceiver (const Receiver& receiver, uint16_t port) + { + std::lock_guard lock(m_ReceiversMutex); + m_ReceiversByPorts[port] = receiver; + if (!m_DefaultReceiver) { + m_DefaultReceiver = receiver; + m_DefaultReceiverPort = port; + } + } + + void DatagramDestination::ResetReceiver (uint16_t port) + { + std::lock_guard lock(m_ReceiversMutex); + m_ReceiversByPorts.erase (port); + if (m_DefaultReceiverPort == port) { + m_DefaultReceiver = nullptr; + m_DefaultReceiverPort = 0; + } + } + + + void DatagramDestination::SetRawReceiver (const RawReceiver& receiver, uint16_t port) + { + std::lock_guard lock(m_RawReceiversMutex); + m_RawReceiversByPorts[port] = receiver; + if (!m_DefaultRawReceiver) { + m_DefaultRawReceiver = receiver; + m_DefaultRawReceiverPort = port; + } + } + + void DatagramDestination::ResetRawReceiver (uint16_t port) + { + std::lock_guard lock(m_RawReceiversMutex); + m_RawReceiversByPorts.erase (port); + if (m_DefaultRawReceiverPort == port) { + m_DefaultRawReceiver = nullptr; + m_DefaultRawReceiverPort = 0; + } + } + + DatagramDestination::Receiver DatagramDestination::FindReceiver(uint16_t port) { std::lock_guard lock(m_ReceiversMutex); - Receiver r = m_Receiver; + Receiver r = nullptr; auto itr = m_ReceiversByPorts.find(port); if (itr != m_ReceiversByPorts.end()) r = itr->second; + else { + r = m_DefaultReceiver; + } return r; } - void DatagramDestination::HandleDataMessagePayload (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + DatagramDestination::RawReceiver DatagramDestination::FindRawReceiver(uint16_t port) + { + std::lock_guard lock(m_RawReceiversMutex); + RawReceiver r = nullptr; + auto itr = m_RawReceiversByPorts.find(port); + if (itr != m_RawReceiversByPorts.end()) + r = itr->second; + else { + r = m_DefaultRawReceiver; + } + return r; + } + + void DatagramDestination::HandleDataMessagePayload (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len, bool isRaw) { // unzip it uint8_t uncompressed[MAX_DATAGRAM_SIZE]; size_t uncompressedLen = m_Inflator.Inflate (buf, len, uncompressed, MAX_DATAGRAM_SIZE); if (uncompressedLen) - HandleDatagram (fromPort, toPort, uncompressed, uncompressedLen); + { + if (isRaw) + HandleRawDatagram (fromPort, toPort, uncompressed, uncompressedLen); + else + HandleDatagram (fromPort, toPort, uncompressed, uncompressedLen); + } else LogPrint (eLogWarning, "Datagram: decompression failed"); } - std::shared_ptr DatagramDestination::CreateDataMessage (const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort) + std::shared_ptr DatagramDestination::CreateDataMessage ( + const std::vector >& payloads, + uint16_t fromPort, uint16_t toPort, bool isRaw, bool checksum) { - auto msg = NewI2NPMessage (); + size_t size; + auto msg = m_I2NPMsgsPool.AcquireShared (); uint8_t * buf = msg->GetPayload (); buf += 4; // reserve for length - size_t size = m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len); + + if (m_Gzip && m_Deflator) + size = m_Deflator->Deflate (payloads, buf, msg->maxLen - msg->len); + else + size = i2p::data::GzipNoCompression (payloads, buf, msg->maxLen - msg->len); + if (size) { htobe32buf (msg->GetPayload (), size); // length htobe16buf (buf + 4, fromPort); // source port htobe16buf (buf + 6, toPort); // destination port - buf[9] = i2p::client::PROTOCOL_TYPE_DATAGRAM; // datagram protocol + buf[9] = isRaw ? i2p::client::PROTOCOL_TYPE_RAW : i2p::client::PROTOCOL_TYPE_DATAGRAM; // raw or datagram protocol msg->len += size + 4; - msg->FillI2NPMessageHeader (eI2NPData); + msg->FillI2NPMessageHeader (eI2NPData, 0, checksum); } else msg = nullptr; @@ -170,11 +285,10 @@ namespace datagram return nullptr; } - DatagramSession::DatagramSession(i2p::client::ClientDestination * localDestination, - const i2p::data::IdentHash & remoteIdent) : - m_LocalDestination(localDestination), - m_RemoteIdent(remoteIdent), - m_SendQueueTimer(localDestination->GetService()), + DatagramSession::DatagramSession(std::shared_ptr localDestination, + const i2p::data::IdentHash & remoteIdent) : + m_LocalDestination(localDestination), m_RemoteIdent(remoteIdent), + m_LastUse (0), m_LastFlush (0), m_RequestingLS(false) { } @@ -182,21 +296,25 @@ namespace datagram void DatagramSession::Start () { m_LastUse = i2p::util::GetMillisecondsSinceEpoch (); - ScheduleFlushSendQueue(); } void DatagramSession::Stop () { - m_SendQueueTimer.cancel (); } void DatagramSession::SendMsg(std::shared_ptr msg) { // we used this session m_LastUse = i2p::util::GetMillisecondsSinceEpoch(); - // schedule send - auto self = shared_from_this(); - m_LocalDestination->GetService().post(std::bind(&DatagramSession::HandleSend, self, msg)); + if (msg || m_SendQueue.empty ()) + m_SendQueue.push_back(msg); + // flush queue right away if full + if (!msg || m_SendQueue.size() >= DATAGRAM_SEND_QUEUE_MAX_SIZE || + m_LastUse > m_LastFlush + DATAGRAM_MAX_FLUSH_INTERVAL) + { + FlushSendQueue(); + m_LastFlush = m_LastUse; + } } DatagramSession::Info DatagramSession::GetSessionInfo() const @@ -228,97 +346,140 @@ namespace datagram auto path = GetSharedRoutingPath(); if(path) path->updateTime = i2p::util::GetSecondsSinceEpoch (); + if (IsRatchets ()) + SendMsg (nullptr); // send empty message in case if we don't have some data to send } std::shared_ptr DatagramSession::GetSharedRoutingPath () { - if(!m_RoutingSession) { - if(!m_RemoteLeaseSet) { - m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent); - } - if(!m_RemoteLeaseSet) { - // no remote lease set - if(!m_RequestingLS) { + if (!m_RemoteLeaseSet || m_RemoteLeaseSet->IsExpired ()) + { + m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent); + if (!m_RemoteLeaseSet) + { + if(!m_RequestingLS) + { m_RequestingLS = true; m_LocalDestination->RequestDestination(m_RemoteIdent, std::bind(&DatagramSession::HandleLeaseSetUpdated, this, std::placeholders::_1)); } return nullptr; } - m_RoutingSession = m_LocalDestination->GetRoutingSession(m_RemoteLeaseSet, true); } + + if (!m_RoutingSession || m_RoutingSession->IsTerminated () || !m_RoutingSession->IsReadyToSend ()) + { + bool found = false; + for (auto& it: m_PendingRoutingSessions) + if (it->GetOwner () && m_RoutingSession->IsReadyToSend ()) // found established session + { + m_RoutingSession = it; + m_PendingRoutingSessions.clear (); + found = true; + break; + } + if (!found) + { + m_RoutingSession = m_LocalDestination->GetRoutingSession(m_RemoteLeaseSet, true); + if (m_RoutingSession) + { + m_RoutingSession->SetAckRequestInterval (DATAGRAM_SESSION_ACK_REQUEST_INTERVAL); + if (!m_RoutingSession->GetOwner () || !m_RoutingSession->IsReadyToSend ()) + m_PendingRoutingSessions.push_back (m_RoutingSession); + } + } + } + auto path = m_RoutingSession->GetSharedRoutingPath(); - if(path) { - if (m_CurrentOutboundTunnel && !m_CurrentOutboundTunnel->IsEstablished()) { + if (path && m_RoutingSession->IsRatchets () && m_RoutingSession->CleanupUnconfirmedTags ()) + { + LogPrint (eLogDebug, "Datagram: path reset"); + m_RoutingSession->SetSharedRoutingPath (nullptr); + path = nullptr; + } + + if (path) + { + if (path->outboundTunnel && !path->outboundTunnel->IsEstablished ()) + { // bad outbound tunnel, switch outbound tunnel - m_CurrentOutboundTunnel = m_LocalDestination->GetTunnelPool()->GetNextOutboundTunnel(m_CurrentOutboundTunnel); - path->outboundTunnel = m_CurrentOutboundTunnel; + path->outboundTunnel = m_LocalDestination->GetTunnelPool()->GetNextOutboundTunnel(path->outboundTunnel); + if (!path->outboundTunnel) + m_RoutingSession->SetSharedRoutingPath (nullptr); } - if(m_CurrentRemoteLease && m_CurrentRemoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) { + + if (path->remoteLease && path->remoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) + { // bad lease, switch to next one - if(m_RemoteLeaseSet && m_RemoteLeaseSet->IsExpired()) - m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent); - if(m_RemoteLeaseSet) { - auto ls = m_RemoteLeaseSet->GetNonExpiredLeasesExcluding([&](const i2p::data::Lease& l) -> bool { - return l.tunnelID == m_CurrentRemoteLease->tunnelID; - }); - auto sz = ls.size(); - if (sz) { - auto idx = rand() % sz; - m_CurrentRemoteLease = ls[idx]; - } - } else { - // no remote lease set? - LogPrint(eLogWarning, "DatagramSession: no cached remote lease set for ", m_RemoteIdent.ToBase32()); - } - path->remoteLease = m_CurrentRemoteLease; - } - } else { - // no current path, make one - path = std::make_shared(); - // switch outbound tunnel if bad - if(m_CurrentOutboundTunnel == nullptr || ! m_CurrentOutboundTunnel->IsEstablished()) { - m_CurrentOutboundTunnel = m_LocalDestination->GetTunnelPool()->GetNextOutboundTunnel(m_CurrentOutboundTunnel); - } - // switch lease if bad - if(m_CurrentRemoteLease && m_CurrentRemoteLease->ExpiresWithin(DATAGRAM_SESSION_LEASE_HANDOVER_WINDOW)) { - if(!m_RemoteLeaseSet) { - m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent); - } - if(m_RemoteLeaseSet) { - // pick random next good lease - auto ls = m_RemoteLeaseSet->GetNonExpiredLeasesExcluding([&] (const i2p::data::Lease & l) -> bool { - if(m_CurrentRemoteLease) - return l.tunnelGateway == m_CurrentRemoteLease->tunnelGateway; - return false; - }); - auto sz = ls.size(); - if(sz) { - auto idx = rand() % sz; - m_CurrentRemoteLease = ls[idx]; - } - } else { - // no remote lease set currently, bail - LogPrint(eLogWarning, "DatagramSession: no remote lease set found for ", m_RemoteIdent.ToBase32()); - return nullptr; - } - } else if (!m_CurrentRemoteLease) { - if(!m_RemoteLeaseSet) m_RemoteLeaseSet = m_LocalDestination->FindLeaseSet(m_RemoteIdent); if (m_RemoteLeaseSet) { - auto ls = m_RemoteLeaseSet->GetNonExpiredLeases(); + auto ls = m_RemoteLeaseSet->GetNonExpiredLeasesExcluding( + [&](const i2p::data::Lease& l) -> bool + { + return l.tunnelID == path->remoteLease->tunnelID; + }); auto sz = ls.size(); - if (sz) { - auto idx = rand() % sz; - m_CurrentRemoteLease = ls[idx]; + if (sz) + { + int idx = -1; + if (m_LocalDestination) + { + auto pool = m_LocalDestination->GetTunnelPool (); + if (pool) + idx = pool->GetRng ()() % sz; + } + if (idx < 0) idx = rand () % sz; + path->remoteLease = ls[idx]; } + else + m_RoutingSession->SetSharedRoutingPath (nullptr); + } + else + { + // no remote lease set? + LogPrint(eLogWarning, "DatagramSession: no cached remote lease set for ", m_RemoteIdent.ToBase32()); + m_RoutingSession->SetSharedRoutingPath (nullptr); } } - path->outboundTunnel = m_CurrentOutboundTunnel; - path->remoteLease = m_CurrentRemoteLease; + } + else + { + // no current path, make one + path = std::make_shared(); + + if (m_RemoteLeaseSet) + { + // pick random next good lease + auto ls = m_RemoteLeaseSet->GetNonExpiredLeases(); + auto sz = ls.size(); + if (sz) + { + int idx = -1; + if (m_LocalDestination) + { + auto pool = m_LocalDestination->GetTunnelPool (); + if (pool) + idx = pool->GetRng ()() % sz; + } + if (idx < 0) idx = rand () % sz; + path->remoteLease = ls[idx]; + } + else + return nullptr; + + auto leaseRouter = i2p::data::netdb.FindRouter (path->remoteLease->tunnelGateway); + path->outboundTunnel = m_LocalDestination->GetTunnelPool()->GetNextOutboundTunnel(nullptr, + leaseRouter ? leaseRouter->GetCompatibleTransports (false) : (i2p::data::RouterInfo::CompatibleTransports)i2p::data::RouterInfo::eAllTransports); + if (!path->outboundTunnel) return nullptr; + } + else + { + // no remote lease set currently, bail + LogPrint(eLogWarning, "DatagramSession: no remote lease set found for ", m_RemoteIdent.ToBase32()); + return nullptr; + } m_RoutingSession->SetSharedRoutingPath(path); } return path; - } void DatagramSession::HandleLeaseSetUpdated(std::shared_ptr ls) @@ -331,16 +492,9 @@ namespace datagram if(ls && ls->GetExpirationTime() > oldExpire) m_RemoteLeaseSet = ls; } - void DatagramSession::HandleSend(std::shared_ptr msg) - { - m_SendQueue.push_back(msg); - // flush queue right away if full - if(m_SendQueue.size() >= DATAGRAM_SEND_QUEUE_MAX_SIZE) FlushSendQueue(); - } - void DatagramSession::FlushSendQueue () { - + if (m_SendQueue.empty ()) return; std::vector send; auto routingPath = GetSharedRoutingPath(); // if we don't have a routing path we will drop all queued messages @@ -349,21 +503,12 @@ namespace datagram for (const auto & msg : m_SendQueue) { auto m = m_RoutingSession->WrapSingleMessage(msg); - send.push_back(i2p::tunnel::TunnelMessageBlock{i2p::tunnel::eDeliveryTypeTunnel,routingPath->remoteLease->tunnelGateway, routingPath->remoteLease->tunnelID, m}); + if (m) + send.push_back(i2p::tunnel::TunnelMessageBlock{i2p::tunnel::eDeliveryTypeTunnel,routingPath->remoteLease->tunnelGateway, routingPath->remoteLease->tunnelID, m}); } - routingPath->outboundTunnel->SendTunnelDataMsg(send); + routingPath->outboundTunnel->SendTunnelDataMsgs(send); } m_SendQueue.clear(); - ScheduleFlushSendQueue(); - } - - void DatagramSession::ScheduleFlushSendQueue() - { - boost::posix_time::milliseconds dlt(10); - m_SendQueueTimer.expires_from_now(dlt); - auto self = shared_from_this(); - m_SendQueueTimer.async_wait([self](const boost::system::error_code & ec) { if(ec) return; self->FlushSendQueue(); }); } } } - diff --git a/libi2pd/Datagram.h b/libi2pd/Datagram.h index 039417ea..dd358434 100644 --- a/libi2pd/Datagram.h +++ b/libi2pd/Datagram.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef DATAGRAM_H__ #define DATAGRAM_H__ @@ -5,7 +13,9 @@ #include #include #include +#include #include "Base.h" +#include "Gzip.h" #include "Identity.h" #include "LeaseSet.h" #include "I2NPProtocol.h" @@ -21,8 +31,6 @@ namespace datagram { // milliseconds for max session idle time const uint64_t DATAGRAM_SESSION_MAX_IDLE = 10 * 60 * 1000; - // milliseconds for how long we try sticking to a dead routing path before trying to switch - const uint64_t DATAGRAM_SESSION_PATH_TIMEOUT = 10 * 1000; // milliseconds interval a routing path is used before switching const uint64_t DATAGRAM_SESSION_PATH_SWITCH_INTERVAL = 20 * 60 * 1000; // milliseconds before lease expire should we try switching leases @@ -31,25 +39,32 @@ namespace datagram const uint64_t DATAGRAM_SESSION_LEASE_HANDOVER_FUDGE = 1000; // milliseconds minimum time between path switches const uint64_t DATAGRAM_SESSION_PATH_MIN_LIFETIME = 5 * 1000; - // max 64 messages buffered in send queue for each datagram session - const size_t DATAGRAM_SEND_QUEUE_MAX_SIZE = 64; + // max 64 messages buffered in send queue for each datagram session + const size_t DATAGRAM_SEND_QUEUE_MAX_SIZE = 64; + const uint64_t DATAGRAM_MAX_FLUSH_INTERVAL = 5; // in milliseconds + const int DATAGRAM_SESSION_ACK_REQUEST_INTERVAL = 5500; // in milliseconds class DatagramSession : public std::enable_shared_from_this { - public: - DatagramSession(i2p::client::ClientDestination * localDestination, const i2p::data::IdentHash & remoteIdent); - void Start (); - void Stop (); + public: + + DatagramSession(std::shared_ptr localDestination, const i2p::data::IdentHash & remoteIdent); + + void Start (); + void Stop (); - /** @brief ack the garlic routing path */ - void Ack(); + /** @brief ack the garlic routing path */ + void Ack(); - /** send an i2np message to remote endpoint for this session */ - void SendMsg(std::shared_ptr msg); - /** get the last time in milliseconds for when we used this datagram session */ - uint64_t LastActivity() const { return m_LastUse; } + /** send an i2np message to remote endpoint for this session */ + void SendMsg(std::shared_ptr msg); + void FlushSendQueue(); + /** get the last time in milliseconds for when we used this datagram session */ + uint64_t LastActivity() const { return m_LastUse; } + + bool IsRatchets () const { return m_RoutingSession && m_RoutingSession->IsRatchets (); } struct Info { @@ -57,40 +72,34 @@ namespace datagram std::shared_ptr OBEP; const uint64_t activity; - Info() : IBGW(nullptr), OBEP(nullptr), activity(0) {} - Info(const uint8_t * ibgw, const uint8_t * obep, const uint64_t a) : - activity(a) { - if(ibgw) IBGW = std::make_shared(ibgw); - else IBGW = nullptr; - if(obep) OBEP = std::make_shared(obep); - else OBEP = nullptr; - } - }; + Info() : IBGW(nullptr), OBEP(nullptr), activity(0) {} + Info(const uint8_t * ibgw, const uint8_t * obep, const uint64_t a) : + activity(a) { + if(ibgw) IBGW = std::make_shared(ibgw); + else IBGW = nullptr; + if(obep) OBEP = std::make_shared(obep); + else OBEP = nullptr; + } + }; - Info GetSessionInfo() const; + Info GetSessionInfo() const; - private: + private: - void FlushSendQueue(); - void ScheduleFlushSendQueue(); + std::shared_ptr GetSharedRoutingPath(); - void HandleSend(std::shared_ptr msg); + void HandleLeaseSetUpdated(std::shared_ptr ls); - std::shared_ptr GetSharedRoutingPath(); + private: - void HandleLeaseSetUpdated(std::shared_ptr ls); - - private: - i2p::client::ClientDestination * m_LocalDestination; - i2p::data::IdentHash m_RemoteIdent; - std::shared_ptr m_RemoteLeaseSet; - std::shared_ptr m_RoutingSession; - std::shared_ptr m_CurrentRemoteLease; - std::shared_ptr m_CurrentOutboundTunnel; - boost::asio::deadline_timer m_SendQueueTimer; - std::vector > m_SendQueue; - uint64_t m_LastUse; - bool m_RequestingLS; + std::shared_ptr m_LocalDestination; + i2p::data::IdentHash m_RemoteIdent; + std::shared_ptr m_RemoteLeaseSet; + std::shared_ptr m_RoutingSession; + std::vector > m_PendingRoutingSessions; + std::vector > m_SendQueue; + uint64_t m_LastUse, m_LastFlush; // milliseconds + bool m_RequestingLS; }; typedef std::shared_ptr DatagramSession_ptr; @@ -99,21 +108,30 @@ namespace datagram class DatagramDestination { typedef std::function Receiver; + typedef std::function RawReceiver; public: - - DatagramDestination (std::shared_ptr owner); + DatagramDestination (std::shared_ptr owner, bool gzip); ~DatagramDestination (); - void SendDatagramTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash & ident, uint16_t fromPort = 0, uint16_t toPort = 0); - void HandleDataMessagePayload (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void SendDatagramTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash & ident, uint16_t fromPort = 0, uint16_t toPort = 0); + void SendRawDatagramTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash & ident, uint16_t fromPort = 0, uint16_t toPort = 0); + // TODO: implement calls from other thread from SAM - void SetReceiver (const Receiver& receiver) { m_Receiver = receiver; }; - void ResetReceiver () { m_Receiver = nullptr; }; + std::shared_ptr GetSession(const i2p::data::IdentHash & ident); + void SendDatagram (std::shared_ptr session, const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort); + void SendRawDatagram (std::shared_ptr session, const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort); + void FlushSendQueue (std::shared_ptr session); - void SetReceiver (const Receiver& receiver, uint16_t port) { std::lock_guard lock(m_ReceiversMutex); m_ReceiversByPorts[port] = receiver; }; - void ResetReceiver (uint16_t port) { std::lock_guard lock(m_ReceiversMutex); m_ReceiversByPorts.erase (port); }; + void HandleDataMessagePayload (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len, bool isRaw = false); + + + void SetReceiver (const Receiver& receiver, uint16_t port); + void ResetReceiver (uint16_t port); + + void SetRawReceiver (const RawReceiver& receiver, uint16_t port); + void ResetRawReceiver (uint16_t port); std::shared_ptr GetInfoForRemote(const i2p::data::IdentHash & remote); @@ -122,26 +140,38 @@ namespace datagram private: - std::shared_ptr ObtainSession(const i2p::data::IdentHash & ident); + std::shared_ptr ObtainSession(const i2p::data::IdentHash & ident); - std::shared_ptr CreateDataMessage (const uint8_t * payload, size_t len, uint16_t fromPort, uint16_t toPort); + std::shared_ptr CreateDataMessage (const std::vector >& payloads, + uint16_t fromPort, uint16_t toPort, bool isRaw = false, bool checksum = true); void HandleDatagram (uint16_t fromPort, uint16_t toPort, uint8_t *const& buf, size_t len); + void HandleRawDatagram (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); - /** find a receiver by port, if none by port is found try default receiever, otherwise returns nullptr */ Receiver FindReceiver(uint16_t port); + RawReceiver FindRawReceiver(uint16_t port); private: - i2p::client::ClientDestination * m_Owner; - i2p::data::IdentityEx m_Identity; - Receiver m_Receiver; // default + + std::shared_ptr m_Owner; + std::mutex m_SessionsMutex; std::map m_Sessions; - std::mutex m_ReceiversMutex; - std::map m_ReceiversByPorts; + Receiver m_DefaultReceiver; + RawReceiver m_DefaultRawReceiver; + uint16_t m_DefaultReceiverPort; + uint16_t m_DefaultRawReceiverPort; + std::mutex m_ReceiversMutex; + std::mutex m_RawReceiversMutex; + std::unordered_map m_ReceiversByPorts; + std::unordered_map m_RawReceiversByPorts; + + bool m_Gzip; // gzip compression of data messages i2p::data::GzipInflator m_Inflator; - i2p::data::GzipDeflator m_Deflator; + std::unique_ptr m_Deflator; + std::vector m_From, m_Signature; + i2p::util::MemoryPool > m_I2NPMsgsPool; }; } } diff --git a/libi2pd/Destination.cpp b/libi2pd/Destination.cpp index ba90342c..fd23e228 100644 --- a/libi2pd/Destination.cpp +++ b/libi2pd/Destination.cpp @@ -1,29 +1,44 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include +#include +#include +#include #include "Crypto.h" +#include "ECIESX25519AEADRatchetSession.h" #include "Log.h" #include "FS.h" #include "Timestamp.h" #include "NetDb.hpp" #include "Destination.h" -#include "util.h" namespace i2p { namespace client { - LeaseSetDestination::LeaseSetDestination (bool isPublic, const std::map * params): - m_IsRunning (false), m_Thread (nullptr), m_IsPublic (isPublic), - m_PublishReplyToken (0), m_LastSubmissionTime (0), m_PublishConfirmationTimer (m_Service), + LeaseSetDestination::LeaseSetDestination (boost::asio::io_context& service, + bool isPublic, const std::map * params): + m_Service (service), m_IsPublic (isPublic), m_PublishReplyToken (0), + m_LastSubmissionTime (0), m_PublishConfirmationTimer (m_Service), m_PublishVerificationTimer (m_Service), m_PublishDelayTimer (m_Service), m_CleanupTimer (m_Service), - m_LeaseSetType (DEFAULT_LEASESET_TYPE) + m_LeaseSetType (DEFAULT_LEASESET_TYPE), m_AuthType (i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_NONE) { int inLen = DEFAULT_INBOUND_TUNNEL_LENGTH; int inQty = DEFAULT_INBOUND_TUNNELS_QUANTITY; int outLen = DEFAULT_OUTBOUND_TUNNEL_LENGTH; int outQty = DEFAULT_OUTBOUND_TUNNELS_QUANTITY; + int inVar = DEFAULT_INBOUND_TUNNELS_LENGTH_VARIANCE; + int outVar = DEFAULT_OUTBOUND_TUNNELS_LENGTH_VARIANCE; int numTags = DEFAULT_TAGS_TO_SEND; + bool isHighBandwidth = true; std::shared_ptr > explicitPeers; try { @@ -41,10 +56,19 @@ namespace client it = params->find (I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY); if (it != params->end ()) outQty = std::stoi(it->second); + it = params->find (I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE); + if (it != params->end ()) + inVar = std::stoi(it->second); + it = params->find (I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE); + if (it != params->end ()) + outVar = std::stoi(it->second); it = params->find (I2CP_PARAM_TAGS_TO_SEND); if (it != params->end ()) numTags = std::stoi(it->second); - LogPrint (eLogInfo, "Destination: parameters for tunnel set to: ", inQty, " inbound (", inLen, " hops), ", outQty, " outbound (", outLen, " hops), ", numTags, " tags"); + LogPrint (eLogInfo, "Destination: Parameters for tunnel set to: ", inQty, " inbound (", inLen, " hops), ", outQty, " outbound (", outLen, " hops), ", numTags, " tags"); + it = params->find (I2CP_PARAM_RATCHET_INBOUND_TAGS); + if (it != params->end ()) + SetNumRatchetInboundTags (std::stoi(it->second)); it = params->find (I2CP_PARAM_EXPLICIT_PEERS); if (it != params->end ()) { @@ -67,17 +91,49 @@ namespace client if (it != params->end ()) m_Nickname = it->second; // otherwise we set default nickname in Start when we know local address } + it = params->find (I2CP_PARAM_DONT_PUBLISH_LEASESET); + if (it != params->end ()) + { + // override isPublic + m_IsPublic = (it->second != "true"); + } it = params->find (I2CP_PARAM_LEASESET_TYPE); if (it != params->end ()) m_LeaseSetType = std::stoi(it->second); + if (m_LeaseSetType == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) + { + // authentication for encrypted LeaseSet + it = params->find (I2CP_PARAM_LEASESET_AUTH_TYPE); + if (it != params->end ()) + { + auto authType = std::stoi (it->second); + if (authType >= i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_NONE && authType <= i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_PSK) + m_AuthType = authType; + else + LogPrint (eLogError, "Destination: Unknown auth type: ", authType); + } + } + it = params->find (I2CP_PARAM_LEASESET_PRIV_KEY); + if (it != params->end ()) + { + m_LeaseSetPrivKey.reset (new i2p::data::Tag<32>()); + if (m_LeaseSetPrivKey->FromBase64 (it->second) != 32) + { + LogPrint(eLogCritical, "Destination: Invalid value i2cp.leaseSetPrivKey: ", it->second); + m_LeaseSetPrivKey.reset (nullptr); + } + } + it = params->find (I2CP_PARAM_STREAMING_PROFILE); + if (it != params->end ()) + isHighBandwidth = std::stoi (it->second) != STREAMING_PROFILE_INTERACTIVE; } } catch (std::exception & ex) { - LogPrint(eLogError, "Destination: unable to parse parameters for destination: ", ex.what()); + LogPrint(eLogError, "Destination: Unable to parse parameters for destination: ", ex.what()); } SetNumTags (numTags); - m_Pool = i2p::tunnel::tunnels.CreateTunnelPool (inLen, outLen, inQty, outQty); + m_Pool = i2p::tunnel::tunnels.CreateTunnelPool (inLen, outLen, inQty, outQty, inVar, outVar, isHighBandwidth); if (explicitPeers) m_Pool->SetExplicitPeers (explicitPeers); if(params) @@ -90,7 +146,7 @@ namespace client auto minlatency = std::stoi(itr->second); if ( minlatency > 0 && maxlatency > 0 ) { // set tunnel pool latency - LogPrint(eLogInfo, "Destination: requiring tunnel latency [", minlatency, "ms, ", maxlatency, "ms]"); + LogPrint(eLogInfo, "Destination: Requiring tunnel latency [", minlatency, "ms, ", maxlatency, "ms]"); m_Pool->RequireLatency(minlatency, maxlatency); } } @@ -100,89 +156,47 @@ namespace client LeaseSetDestination::~LeaseSetDestination () { - if (m_IsRunning) - Stop (); if (m_Pool) i2p::tunnel::tunnels.DeleteTunnelPool (m_Pool); for (auto& it: m_LeaseSetRequests) it.second->Complete (nullptr); } - void LeaseSetDestination::Run () + void LeaseSetDestination::Start () { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "Destination: runtime exception: ", ex.what ()); - } - } + if (m_Nickname.empty ()) + m_Nickname = i2p::data::GetIdentHashAbbreviation (GetIdentHash ()); // set default nickname + LoadTags (); + m_Pool->SetLocalDestination (shared_from_this ()); + m_Pool->SetActive (true); + m_CleanupTimer.expires_from_now (boost::posix_time::seconds (DESTINATION_CLEANUP_TIMEOUT)); + m_CleanupTimer.async_wait (std::bind (&LeaseSetDestination::HandleCleanupTimer, + shared_from_this (), std::placeholders::_1)); } - bool LeaseSetDestination::Start () + void LeaseSetDestination::Stop () { - if (!m_IsRunning) + m_CleanupTimer.cancel (); + m_PublishConfirmationTimer.cancel (); + m_PublishVerificationTimer.cancel (); + if (m_Pool) { - if (m_Nickname.empty ()) - m_Nickname = i2p::data::GetIdentHashAbbreviation (GetIdentHash ()); // set default nickname - LoadTags (); - m_IsRunning = true; - m_Pool->SetLocalDestination (shared_from_this ()); - m_Pool->SetActive (true); - m_CleanupTimer.expires_from_now (boost::posix_time::minutes (DESTINATION_CLEANUP_TIMEOUT)); - m_CleanupTimer.async_wait (std::bind (&LeaseSetDestination::HandleCleanupTimer, - shared_from_this (), std::placeholders::_1)); - m_Thread = new std::thread (std::bind (&LeaseSetDestination::Run, shared_from_this ())); - - return true; + m_Pool->SetLocalDestination (nullptr); + i2p::tunnel::tunnels.StopTunnelPool (m_Pool); } - else - return false; - } - - bool LeaseSetDestination::Stop () - { - if (m_IsRunning) - { - m_CleanupTimer.cancel (); - m_PublishConfirmationTimer.cancel (); - m_PublishVerificationTimer.cancel (); - - m_IsRunning = false; - if (m_Pool) - { - m_Pool->SetLocalDestination (nullptr); - i2p::tunnel::tunnels.StopTunnelPool (m_Pool); - } - m_Service.stop (); - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = 0; - } - SaveTags (); - CleanUp (); // GarlicDestination - return true; - } - else - return false; + SaveTags (); + CleanUp (); // GarlicDestination } bool LeaseSetDestination::Reconfigure(std::map params) { - auto itr = params.find("i2cp.dontPublishLeaseSet"); if (itr != params.end()) { m_IsPublic = itr->second != "true"; } - - int inLen, outLen, inQuant, outQuant, numTags, minLatency, maxLatency; + + int inLen = 0, outLen = 0, inQuant = 0, outQuant = 0, numTags = 0, minLatency = 0, maxLatency = 0; std::map intOpts = { {I2CP_PARAM_INBOUND_TUNNEL_LENGTH, inLen}, {I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH, outLen}, @@ -200,7 +214,7 @@ namespace client outQuant = pool->GetNumOutboundTunnels(); minLatency = 0; maxLatency = 0; - + for (auto & opt : intOpts) { itr = params.find(opt.first); @@ -212,7 +226,7 @@ namespace client pool->RequireLatency(minLatency, maxLatency); return pool->Reconfigure(inLen, outLen, inQuant, outQuant); } - + std::shared_ptr LeaseSetDestination::FindLeaseSet (const i2p::data::IdentHash& ident) { std::shared_ptr remoteLS; @@ -247,23 +261,12 @@ namespace client } else { - LogPrint (eLogWarning, "Destination: remote LeaseSet expired"); + LogPrint (eLogWarning, "Destination: Remote LeaseSet expired"); std::lock_guard lock(m_RemoteLeaseSetsMutex); m_RemoteLeaseSets.erase (ident); return nullptr; } } - else - { - auto ls = i2p::data::netdb.FindLeaseSet (ident); - if (ls && !ls->IsExpired ()) - { - ls->PopulateLeases (); // since we don't store them in netdb - std::lock_guard _lock(m_RemoteLeaseSetsMutex); - m_RemoteLeaseSets[ident] = ls; - return ls; - } - } return nullptr; } @@ -281,7 +284,7 @@ namespace client std::lock_guard l(m_LeaseSetMutex); return m_LeaseSet; } - + void LeaseSetDestination::SetLeaseSet (std::shared_ptr newLeaseSet) { { @@ -292,11 +295,11 @@ namespace client if (m_IsPublic) { auto s = shared_from_this (); - m_Service.post ([s](void) + boost::asio::post (m_Service, [s](void) { s->m_PublishVerificationTimer.cancel (); s->Publish (); - }); + }); } } @@ -304,7 +307,11 @@ namespace client { int numTunnels = m_Pool->GetNumInboundTunnels () + 2; // 2 backup tunnels if (numTunnels > i2p::data::MAX_NUM_LEASES) numTunnels = i2p::data::MAX_NUM_LEASES; // 16 tunnels maximum - CreateNewLeaseSet (m_Pool->GetInboundTunnels (numTunnels)); + auto tunnels = m_Pool->GetInboundTunnels (numTunnels); + if (!tunnels.empty ()) + CreateNewLeaseSet (tunnels); + else + LogPrint (eLogInfo, "Destination: No inbound tunnels for LeaseSet"); } bool LeaseSetDestination::SubmitSessionKey (const uint8_t * key, const uint8_t * tag) @@ -316,48 +323,104 @@ namespace client memcpy (data.k, key, 32); memcpy (data.t, tag, 32); auto s = shared_from_this (); - m_Service.post ([s,data](void) + boost::asio::post (m_Service, [s,data](void) { s->AddSessionKey (data.k, data.t); }); return true; } + void LeaseSetDestination::SubmitECIESx25519Key (const uint8_t * key, uint64_t tag) + { + struct + { + uint8_t k[32]; + uint64_t t; + } data; + memcpy (data.k, key, 32); + data.t = tag; + auto s = shared_from_this (); + boost::asio::post (m_Service, [s,data](void) + { + s->AddECIESx25519Key (data.k, data.t); + }); + } + void LeaseSetDestination::ProcessGarlicMessage (std::shared_ptr msg) { - m_Service.post (std::bind (&LeaseSetDestination::HandleGarlicMessage, shared_from_this (), msg)); + if (!msg) return; + bool empty = false; + { + std::lock_guard l(m_IncomingMsgsQueueMutex); + empty = m_IncomingMsgsQueue.empty (); + m_IncomingMsgsQueue.push_back (msg); + } + if (empty) + boost::asio::post (m_Service, [s = shared_from_this ()]() + { + std::list > receivedMsgs; + { + std::lock_guard l(s->m_IncomingMsgsQueueMutex); + s->m_IncomingMsgsQueue.swap (receivedMsgs); + } + for (auto& it: receivedMsgs) + s->HandleGarlicMessage (it); + }); } void LeaseSetDestination::ProcessDeliveryStatusMessage (std::shared_ptr msg) { - m_Service.post (std::bind (&LeaseSetDestination::HandleDeliveryStatusMessage, shared_from_this (), msg)); + uint32_t msgID = bufbe32toh (msg->GetPayload () + DELIVERY_STATUS_MSGID_OFFSET); + boost::asio::post (m_Service, std::bind (&LeaseSetDestination::HandleDeliveryStatusMessage, shared_from_this (), msgID)); } - void LeaseSetDestination::HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from) + void LeaseSetDestination::HandleI2NPMessage (const uint8_t * buf, size_t len) + { + I2NPMessageType typeID = (I2NPMessageType)(buf[I2NP_HEADER_TYPEID_OFFSET]); + uint32_t msgID = bufbe32toh (buf + I2NP_HEADER_MSGID_OFFSET); + LeaseSetDestination::HandleCloveI2NPMessage (typeID, buf + I2NP_HEADER_SIZE, + GetI2NPMessageLength(buf, len) - I2NP_HEADER_SIZE, msgID, nullptr); + } + + bool LeaseSetDestination::HandleCloveI2NPMessage (I2NPMessageType typeID, const uint8_t * payload, + size_t len, uint32_t msgID, i2p::garlic::ECIESX25519AEADRatchetSession * from) { - uint8_t typeID = buf[I2NP_HEADER_TYPEID_OFFSET]; switch (typeID) { case eI2NPData: - HandleDataMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len) - I2NP_HEADER_SIZE); + HandleDataMessage (payload, len); break; case eI2NPDeliveryStatus: - // we assume tunnel tests non-encrypted - HandleDeliveryStatusMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len), from)); + HandleDeliveryStatusMessage (bufbe32toh (payload + DELIVERY_STATUS_MSGID_OFFSET)); + break; + case eI2NPTunnelTest: + if (m_Pool) + m_Pool->ProcessTunnelTest (bufbe32toh (payload + TUNNEL_TEST_MSGID_OFFSET), bufbe64toh (payload + TUNNEL_TEST_TIMESTAMP_OFFSET)); break; case eI2NPDatabaseStore: - HandleDatabaseStoreMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len) - I2NP_HEADER_SIZE); + HandleDatabaseStoreMessage (payload, len, from); break; case eI2NPDatabaseSearchReply: - HandleDatabaseSearchReplyMessage (buf + I2NP_HEADER_SIZE, GetI2NPMessageLength(buf, len) - I2NP_HEADER_SIZE); + HandleDatabaseSearchReplyMessage (payload, len); + break; + case eI2NPShortTunnelBuildReply: // might come as garlic encrypted + i2p::HandleI2NPMessage (CreateI2NPMessage (typeID, payload, len, msgID)); break; default: - i2p::HandleI2NPMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len), from)); + LogPrint (eLogWarning, "Destination: Unexpected I2NP message type ", typeID); + return false; } + return true; } - void LeaseSetDestination::HandleDatabaseStoreMessage (const uint8_t * buf, size_t len) + void LeaseSetDestination::HandleDatabaseStoreMessage (const uint8_t * buf, size_t len, + i2p::garlic::ECIESX25519AEADRatchetSession * from) { + if (len < DATABASE_STORE_HEADER_SIZE) + { + LogPrint (eLogError, "Destination: Database store msg is too short ", len); + return; + } uint32_t replyToken = bufbe32toh (buf + DATABASE_STORE_REPLY_TOKEN_OFFSET); size_t offset = DATABASE_STORE_HEADER_SIZE; if (replyToken) @@ -365,8 +428,14 @@ namespace client LogPrint (eLogInfo, "Destination: Reply token is ignored for DatabaseStore"); offset += 36; } + if (offset > len || len > i2p::data::MAX_LS_BUFFER_SIZE + offset) + { + LogPrint (eLogError, "Destination: Database store message is too long ", len); + return; + } i2p::data::IdentHash key (buf + DATABASE_STORE_KEY_OFFSET); std::shared_ptr leaseSet; + std::shared_ptr request; switch (buf[DATABASE_STORE_TYPE_OFFSET]) { case i2p::data::NETDB_STORE_TYPE_LEASESET: // 1 @@ -375,13 +444,14 @@ namespace client LogPrint (eLogDebug, "Destination: Remote LeaseSet"); std::lock_guard lock(m_RemoteLeaseSetsMutex); auto it = m_RemoteLeaseSets.find (key); - if (it != m_RemoteLeaseSets.end ()) + if (it != m_RemoteLeaseSets.end () && + it->second->GetStoreType () == buf[DATABASE_STORE_TYPE_OFFSET]) // update only if same type { leaseSet = it->second; if (leaseSet->IsNewer (buf + offset, len - offset)) { leaseSet->Update (buf + offset, len - offset); - if (leaseSet->IsValid () && leaseSet->GetIdentHash () == key) + if (leaseSet->IsValid () && leaseSet->GetIdentHash () == key && !leaseSet->IsExpired ()) LogPrint (eLogDebug, "Destination: Remote LeaseSet updated"); else { @@ -395,11 +465,25 @@ namespace client } else { + // add or replace if (buf[DATABASE_STORE_TYPE_OFFSET] == i2p::data::NETDB_STORE_TYPE_LEASESET) leaseSet = std::make_shared (buf + offset, len - offset); // LeaseSet else - leaseSet = std::make_shared (buf[DATABASE_STORE_TYPE_OFFSET], buf + offset, len - offset); // LeaseSet2 - if (leaseSet->IsValid () && leaseSet->GetIdentHash () == key) + { + leaseSet = std::make_shared (buf[DATABASE_STORE_TYPE_OFFSET], + buf + offset, len - offset, true, from ? from->GetRemoteStaticKeyType () : GetPreferredCryptoType () ); // LeaseSet2 + if (from) + { + uint8_t pub[32]; + leaseSet->Encrypt (nullptr, pub); + if (memcmp (from->GetRemoteStaticKey (), pub, 32)) + { + LogPrint (eLogError, "Destination: Remote LeaseSet static key mismatch"); + leaseSet = nullptr; + } + } + } + if (leaseSet && leaseSet->IsValid () && leaseSet->GetIdentHash () == key && !leaseSet->IsExpired ()) { if (leaseSet->GetIdentHash () != GetIdentHash ()) { @@ -420,30 +504,60 @@ namespace client case i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2: // 5 { auto it2 = m_LeaseSetRequests.find (key); - if (it2 != m_LeaseSetRequests.end () && it2->second->requestedBlindedKey) + if (it2 != m_LeaseSetRequests.end ()) { - auto ls2 = std::make_shared (buf + offset, len - offset, it2->second->requestedBlindedKey); - if (ls2->IsValid ()) + request = it2->second; + m_LeaseSetRequests.erase (it2); + if (request->requestedBlindedKey) { - m_RemoteLeaseSets[ls2->GetIdentHash ()] = ls2; // ident is not key - m_RemoteLeaseSets[key] = ls2; // also store as key for next lookup - leaseSet = ls2; + auto ls2 = std::make_shared (buf + offset, len - offset, + request->requestedBlindedKey, m_LeaseSetPrivKey ? ((const uint8_t *)*m_LeaseSetPrivKey) : nullptr, + GetPreferredCryptoType ()); + if (ls2->IsValid () && !ls2->IsExpired ()) + { + leaseSet = ls2; + std::lock_guard lock(m_RemoteLeaseSetsMutex); + m_RemoteLeaseSets[ls2->GetIdentHash ()] = ls2; // ident is not key + m_RemoteLeaseSets[key] = ls2; // also store as key for next lookup + } + else + LogPrint (eLogError, "Destination: New remote encrypted LeaseSet2 failed"); + } + else + { + // publishing verification doesn't have requestedBlindedKey + auto localLeaseSet = GetLeaseSetMt (); + if (localLeaseSet->GetStoreHash () == key) + { + auto ls = std::make_shared (i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2, + localLeaseSet->GetBuffer (), localLeaseSet->GetBufferLen (), false); + leaseSet = ls; + } + else + LogPrint (eLogWarning, "Destination: Encrypted LeaseSet2 received for request without blinded key"); } } else - LogPrint (eLogInfo, "Destination: Couldn't find request for encrypted LeaseSet2"); + LogPrint (eLogWarning, "Destination: Couldn't find request for encrypted LeaseSet2"); break; } default: LogPrint (eLogError, "Destination: Unexpected client's DatabaseStore type ", buf[DATABASE_STORE_TYPE_OFFSET], ", dropped"); } - auto it1 = m_LeaseSetRequests.find (key); - if (it1 != m_LeaseSetRequests.end ()) + if (!request) { - it1->second->requestTimeoutTimer.cancel (); - if (it1->second) it1->second->Complete (leaseSet); - m_LeaseSetRequests.erase (it1); + auto it1 = m_LeaseSetRequests.find (key); + if (it1 != m_LeaseSetRequests.end ()) + { + request = it1->second; + m_LeaseSetRequests.erase (it1); + } + } + if (request) + { + request->requestTimeoutTimer.cancel (); + request->Complete (leaseSet); } } @@ -456,58 +570,66 @@ namespace client if (it != m_LeaseSetRequests.end ()) { auto request = it->second; - bool found = false; - if (request->excluded.size () < MAX_NUM_FLOODFILLS_PER_REQUEST) - { - for (int i = 0; i < num; i++) + for (int i = 0; i < num; i++) { i2p::data::IdentHash peerHash (buf + 33 + i*32); if (!request->excluded.count (peerHash) && !i2p::data::netdb.FindRouter (peerHash)) { - LogPrint (eLogInfo, "Destination: Found new floodfill, request it"); // TODO: recheck this message - i2p::data::netdb.RequestDestination (peerHash); + LogPrint (eLogInfo, "Destination: Found new floodfill, request it"); + i2p::data::netdb.RequestDestination (peerHash, nullptr, false); // through exploratory } } - - auto floodfill = i2p::data::netdb.GetClosestFloodfill (key, request->excluded); - if (floodfill) - { - LogPrint (eLogInfo, "Destination: Requesting ", key.ToBase64 (), " at ", floodfill->GetIdentHash ().ToBase64 ()); - if (SendLeaseSetRequest (key, floodfill, request)) - found = true; - } - } - if (!found) - { - LogPrint (eLogInfo, "Destination: ", key.ToBase64 (), " was not found on ", MAX_NUM_FLOODFILLS_PER_REQUEST, " floodfills"); - request->Complete (nullptr); - m_LeaseSetRequests.erase (key); - } + SendNextLeaseSetRequest (key, request); } else LogPrint (eLogWarning, "Destination: Request for ", key.ToBase64 (), " not found"); } - void LeaseSetDestination::HandleDeliveryStatusMessage (std::shared_ptr msg) + void LeaseSetDestination::SendNextLeaseSetRequest (const i2p::data::IdentHash& key, + std::shared_ptr request) + { + bool found = false; + if (request->excluded.size () < MAX_NUM_FLOODFILLS_PER_REQUEST) + { + auto floodfill = i2p::data::netdb.GetClosestFloodfill (key, request->excluded); + if (floodfill) + { + LogPrint (eLogInfo, "Destination: Requesting ", key.ToBase64 (), " at ", floodfill->GetIdentHash ().ToBase64 ()); + if (SendLeaseSetRequest (key, floodfill, request)) + found = true; + } + } + if (!found) + { + LogPrint (eLogInfo, "Destination: ", key.ToBase64 (), " was not found on ", MAX_NUM_FLOODFILLS_PER_REQUEST, " floodfills"); + request->Complete (nullptr); + m_LeaseSetRequests.erase (key); + } + } + + void LeaseSetDestination::HandleDeliveryStatusMessage (uint32_t msgID) { - uint32_t msgID = bufbe32toh (msg->GetPayload () + DELIVERY_STATUS_MSGID_OFFSET); if (msgID == m_PublishReplyToken) { LogPrint (eLogDebug, "Destination: Publishing LeaseSet confirmed for ", GetIdentHash().ToBase32()); m_ExcludedFloodfills.clear (); m_PublishReplyToken = 0; // schedule verification - m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_VERIFICATION_TIMEOUT)); + m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_VERIFICATION_TIMEOUT + + (m_Pool ? m_Pool->GetRng ()() % PUBLISH_VERIFICATION_TIMEOUT_VARIANCE : 0))); m_PublishVerificationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishVerificationTimer, shared_from_this (), std::placeholders::_1)); } else - i2p::garlic::GarlicDestination::HandleDeliveryStatusMessage (msg); + i2p::garlic::GarlicDestination::HandleDeliveryStatusMessage (msgID); } - void LeaseSetDestination::SetLeaseSetUpdated () + void LeaseSetDestination::SetLeaseSetUpdated (bool post) { - UpdateLeaseSet (); + if (post) + boost::asio::post (m_Service, [s = shared_from_this ()]() { s->UpdateLeaseSet (); }); + else + UpdateLeaseSet (); } void LeaseSetDestination::Publish () @@ -533,33 +655,70 @@ namespace client shared_from_this (), std::placeholders::_1)); return; } - auto outbound = m_Pool->GetNextOutboundTunnel (); - if (!outbound) - { - LogPrint (eLogError, "Destination: Can't publish LeaseSet. No outbound tunnels"); - return; - } - auto inbound = m_Pool->GetNextInboundTunnel (); - if (!inbound) - { - LogPrint (eLogError, "Destination: Can't publish LeaseSet. No inbound tunnels"); - return; - } - auto floodfill = i2p::data::netdb.GetClosestFloodfill (leaseSet->GetIdentHash (), m_ExcludedFloodfills); + auto floodfill = i2p::data::netdb.GetClosestFloodfill (leaseSet->GetStoreHash (), m_ExcludedFloodfills); if (!floodfill) { LogPrint (eLogError, "Destination: Can't publish LeaseSet, no more floodfills found"); m_ExcludedFloodfills.clear (); return; } + auto outbound = m_Pool->GetNextOutboundTunnel (nullptr, floodfill->GetCompatibleTransports (false)); + auto inbound = m_Pool->GetNextInboundTunnel (nullptr, floodfill->GetCompatibleTransports (true)); + if (!outbound || !inbound) + { + if (!m_Pool->GetInboundTunnels ().empty () && !m_Pool->GetOutboundTunnels ().empty ()) + { + LogPrint (eLogInfo, "Destination: No compatible tunnels with ", floodfill->GetIdentHash ().ToBase64 (), ". Trying another floodfill"); + m_ExcludedFloodfills.insert (floodfill->GetIdentHash ()); + floodfill = i2p::data::netdb.GetClosestFloodfill (leaseSet->GetStoreHash (), m_ExcludedFloodfills); + if (floodfill) + { + outbound = m_Pool->GetNextOutboundTunnel (nullptr, floodfill->GetCompatibleTransports (false)); + if (outbound) + { + inbound = m_Pool->GetNextInboundTunnel (nullptr, floodfill->GetCompatibleTransports (true)); + if (!inbound) + LogPrint (eLogError, "Destination: Can't publish LeaseSet. No inbound tunnels"); + } + else + LogPrint (eLogError, "Destination: Can't publish LeaseSet. No outbound tunnels"); + } + else + LogPrint (eLogError, "Destination: Can't publish LeaseSet, no more floodfills found"); + } + else + LogPrint (eLogDebug, "Destination: No tunnels in pool"); + + if (!floodfill || !outbound || !inbound) + { + // we can't publish now + m_ExcludedFloodfills.clear (); + m_PublishReplyToken = 1; // dummy non-zero value + // try again after a while + LogPrint (eLogInfo, "Destination: Can't publish LeasetSet because destination is not ready. Try publishing again after ", PUBLISH_CONFIRMATION_TIMEOUT, " milliseconds"); + m_PublishConfirmationTimer.expires_from_now (boost::posix_time::milliseconds(PUBLISH_CONFIRMATION_TIMEOUT)); + m_PublishConfirmationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishConfirmationTimer, + shared_from_this (), std::placeholders::_1)); + return; + } + } m_ExcludedFloodfills.insert (floodfill->GetIdentHash ()); LogPrint (eLogDebug, "Destination: Publish LeaseSet of ", GetIdentHash ().ToBase32 ()); RAND_bytes ((uint8_t *)&m_PublishReplyToken, 4); - auto msg = WrapMessage (floodfill, i2p::CreateDatabaseStoreMsg (leaseSet, m_PublishReplyToken, inbound)); - m_PublishConfirmationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_CONFIRMATION_TIMEOUT)); + auto msg = WrapMessageForRouter (floodfill, i2p::CreateDatabaseStoreMsg (leaseSet, m_PublishReplyToken, inbound)); + auto s = shared_from_this (); + msg->onDrop = [s]() + { + boost::asio::post (s->GetService (), [s]() + { + s->m_PublishConfirmationTimer.cancel (); + s->HandlePublishConfirmationTimer (boost::system::error_code()); + }); + }; + m_PublishConfirmationTimer.expires_from_now (boost::posix_time::milliseconds(PUBLISH_CONFIRMATION_TIMEOUT)); m_PublishConfirmationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishConfirmationTimer, shared_from_this (), std::placeholders::_1)); - outbound->SendTunnelDataMsg (floodfill->GetIdentHash (), 0, msg); + outbound->SendTunnelDataMsgTo (floodfill->GetIdentHash (), 0, msg); m_LastSubmissionTime = ts; } @@ -572,15 +731,15 @@ namespace client m_PublishReplyToken = 0; if (GetIdentity ()->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ELGAMAL) { - LogPrint (eLogWarning, "Destination: Publish confirmation was not received in ", PUBLISH_CONFIRMATION_TIMEOUT, " seconds, will try again"); + LogPrint (eLogWarning, "Destination: Publish confirmation was not received in ", PUBLISH_CONFIRMATION_TIMEOUT, " milliseconds or failed. will try again"); Publish (); } else { - LogPrint (eLogWarning, "Destination: Publish confirmation was not received in ", PUBLISH_CONFIRMATION_TIMEOUT, " seconds from Java floodfill for crypto type ", (int)GetIdentity ()->GetCryptoKeyType ()); + LogPrint (eLogWarning, "Destination: Publish confirmation was not received in ", PUBLISH_CONFIRMATION_TIMEOUT, " milliseconds from Java floodfill for crypto type ", (int)GetIdentity ()->GetCryptoKeyType ()); // Java floodfill never sends confirmation back for unknown crypto type // assume it successive and try to verify - m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_VERIFICATION_TIMEOUT)); + m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_VERIFICATION_TIMEOUT + PUBLISH_VERIFICATION_TIMEOUT_VARIANCE)); // always max m_PublishVerificationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishVerificationTimer, shared_from_this (), std::placeholders::_1)); @@ -596,20 +755,19 @@ namespace client auto ls = GetLeaseSetMt (); if (!ls) { - LogPrint (eLogWarning, "Destination: couldn't verify LeaseSet for ", GetIdentHash().ToBase32()); + LogPrint (eLogWarning, "Destination: Couldn't verify LeaseSet for ", GetIdentHash().ToBase32()); return; - } + } auto s = shared_from_this (); - // we must capture this for gcc 4.7 due the bug RequestLeaseSet (ls->GetStoreHash (), - [s, ls, this](std::shared_ptr leaseSet) + [s, ls](std::shared_ptr leaseSet) { if (leaseSet) { if (*ls == *leaseSet) { // we got latest LeasetSet - LogPrint (eLogDebug, "Destination: published LeaseSet verified for ", s->GetIdentHash().ToBase32()); + LogPrint (eLogDebug, "Destination: Published LeaseSet verified for ", s->GetIdentHash().ToBase32()); s->m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_REGULAR_VERIFICATION_INTERNAL)); s->m_PublishVerificationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishVerificationTimer, s, std::placeholders::_1)); return; @@ -618,7 +776,7 @@ namespace client LogPrint (eLogDebug, "Destination: LeaseSet is different than just published for ", s->GetIdentHash().ToBase32()); } else - LogPrint (eLogWarning, "Destination: couldn't find published LeaseSet for ", s->GetIdentHash().ToBase32()); + LogPrint (eLogWarning, "Destination: Couldn't find published LeaseSet for ", s->GetIdentHash().ToBase32()); // we have to publish again s->Publish (); }); @@ -636,10 +794,10 @@ namespace client if (!m_Pool || !IsReady ()) { if (requestComplete) - m_Service.post ([requestComplete](void){requestComplete (nullptr);}); + boost::asio::post (m_Service, [requestComplete](void){requestComplete (nullptr);}); return false; } - m_Service.post (std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), dest, requestComplete, nullptr)); + boost::asio::post (m_Service, std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), dest, requestComplete, nullptr)); return true; } @@ -648,25 +806,25 @@ namespace client if (!dest || !m_Pool || !IsReady ()) { if (requestComplete) - m_Service.post ([requestComplete](void){requestComplete (nullptr);}); + boost::asio::post (m_Service, [requestComplete](void){requestComplete (nullptr);}); return false; - } + } auto storeHash = dest->GetStoreHash (); - auto leaseSet = FindLeaseSet (storeHash); + auto leaseSet = FindLeaseSet (storeHash); if (leaseSet) { if (requestComplete) - m_Service.post ([requestComplete, leaseSet](void){requestComplete (leaseSet);}); + boost::asio::post (m_Service, [requestComplete, leaseSet](void){requestComplete (leaseSet);}); return true; } - m_Service.post (std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), storeHash, requestComplete, dest)); + boost::asio::post (m_Service, std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), storeHash, requestComplete, dest)); return true; } void LeaseSetDestination::CancelDestinationRequest (const i2p::data::IdentHash& dest, bool notify) { auto s = shared_from_this (); - m_Service.post ([dest, notify, s](void) + boost::asio::post (m_Service, [dest, notify, s](void) { auto it = s->m_LeaseSetRequests.find (dest); if (it != s->m_LeaseSetRequests.end ()) @@ -686,7 +844,7 @@ namespace client void LeaseSetDestination::RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete, std::shared_ptr requestedBlindedKey) { - std::set excluded; + std::unordered_set excluded; auto floodfill = i2p::data::netdb.GetClosestFloodfill (dest, excluded); if (floodfill) { @@ -694,16 +852,24 @@ namespace client request->requestedBlindedKey = requestedBlindedKey; // for encrypted LeaseSet2 if (requestComplete) request->requestComplete.push_back (requestComplete); - auto ts = i2p::util::GetSecondsSinceEpoch (); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); auto ret = m_LeaseSetRequests.insert (std::pair >(dest,request)); if (ret.second) // inserted { request->requestTime = ts; if (!SendLeaseSetRequest (dest, floodfill, request)) { - // request failed - m_LeaseSetRequests.erase (ret.first); - if (requestComplete) requestComplete (nullptr); + // try another + LogPrint (eLogWarning, "Destination: Couldn't send LeaseSet request to ", floodfill->GetIdentHash ().ToBase64 (), ". Trying another"); + request->excluded.insert (floodfill->GetIdentHash ()); + floodfill = i2p::data::netdb.GetClosestFloodfill (dest, request->excluded); + if (!SendLeaseSetRequest (dest, floodfill, request)) + { + // request failed + LogPrint (eLogWarning, "Destination: LeaseSet request for ", dest.ToBase32 (), " was not sent"); + m_LeaseSetRequests.erase (ret.first); + if (requestComplete) requestComplete (nullptr); + } } } else // duplicate @@ -727,29 +893,41 @@ namespace client } bool LeaseSetDestination::SendLeaseSetRequest (const i2p::data::IdentHash& dest, - std::shared_ptr nextFloodfill, std::shared_ptr request) + std::shared_ptr nextFloodfill, std::shared_ptr request) { if (!request->replyTunnel || !request->replyTunnel->IsEstablished ()) - request->replyTunnel = m_Pool->GetNextInboundTunnel (); - if (!request->replyTunnel) LogPrint (eLogError, "Destination: Can't send LeaseSet request, no inbound tunnels found"); + request->replyTunnel = m_Pool->GetNextInboundTunnel (nullptr, nextFloodfill->GetCompatibleTransports (false)); // outbound from floodfill + if (!request->replyTunnel) LogPrint (eLogWarning, "Destination: Can't send LeaseSet request, no compatible inbound tunnels found"); if (!request->outboundTunnel || !request->outboundTunnel->IsEstablished ()) - request->outboundTunnel = m_Pool->GetNextOutboundTunnel (); - if (!request->outboundTunnel) LogPrint (eLogError, "Destination: Can't send LeaseSet request, no outbound tunnels found"); + request->outboundTunnel = m_Pool->GetNextOutboundTunnel (nullptr, nextFloodfill->GetCompatibleTransports (true)); // inbound from floodfill + if (!request->outboundTunnel) LogPrint (eLogWarning, "Destination: Can't send LeaseSet request, no compatible outbound tunnels found"); if (request->replyTunnel && request->outboundTunnel) { request->excluded.insert (nextFloodfill->GetIdentHash ()); request->requestTimeoutTimer.cancel (); + bool isECIES = SupportsEncryptionType (i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) && + nextFloodfill->GetVersion () >= MAKE_VERSION_NUMBER(0, 9, 46); // >= 0.9.46; uint8_t replyKey[32], replyTag[32]; RAND_bytes (replyKey, 32); // random session key - RAND_bytes (replyTag, 32); // random session tag - AddSessionKey (replyKey, replyTag); + RAND_bytes (replyTag, isECIES ? 8 : 32); // random session tag + if (isECIES) + AddECIESx25519Key (replyKey, replyTag); + else + AddSessionKey (replyKey, replyTag); - auto msg = WrapMessage (nextFloodfill, - CreateLeaseSetDatabaseLookupMsg (dest, request->excluded, - request->replyTunnel, replyKey, replyTag)); - request->outboundTunnel->SendTunnelDataMsg ( + auto msg = WrapMessageForRouter (nextFloodfill, + CreateLeaseSetDatabaseLookupMsg (dest, request->excluded, request->replyTunnel, replyKey, replyTag, isECIES)); + auto s = shared_from_this (); + msg->onDrop = [s, dest, request]() + { + boost::asio::post (s->GetService (), [s, dest, request]() + { + s->SendNextLeaseSetRequest (dest, request); + }); + }; + request->outboundTunnel->SendTunnelDataMsgs ( { i2p::tunnel::TunnelMessageBlock { @@ -757,7 +935,7 @@ namespace client nextFloodfill->GetIdentHash (), 0, msg } }); - request->requestTimeoutTimer.expires_from_now (boost::posix_time::seconds(LEASESET_REQUEST_TIMEOUT)); + request->requestTimeoutTimer.expires_from_now (boost::posix_time::milliseconds(LEASESET_REQUEST_TIMEOUT)); request->requestTimeoutTimer.async_wait (std::bind (&LeaseSetDestination::HandleRequestTimoutTimer, shared_from_this (), std::placeholders::_1, dest)); } @@ -774,7 +952,7 @@ namespace client if (it != m_LeaseSetRequests.end ()) { bool done = false; - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); if (ts < it->second->requestTime + MAX_LEASESET_REQUEST_TIMEOUT) { auto floodfill = i2p::data::netdb.GetClosestFloodfill (dest, it->second->excluded); @@ -790,7 +968,7 @@ namespace client } else { - LogPrint (eLogWarning, "Destination: ", dest.ToBase64 (), " was not found within ", MAX_LEASESET_REQUEST_TIMEOUT, " seconds"); + LogPrint (eLogWarning, "Destination: ", dest.ToBase64 (), " was not found within ", MAX_LEASESET_REQUEST_TIMEOUT, " seconds"); done = true; } @@ -811,7 +989,8 @@ namespace client CleanupExpiredTags (); CleanupRemoteLeaseSets (); CleanupDestination (); - m_CleanupTimer.expires_from_now (boost::posix_time::minutes (DESTINATION_CLEANUP_TIMEOUT)); + m_CleanupTimer.expires_from_now (boost::posix_time::seconds (DESTINATION_CLEANUP_TIMEOUT + + (m_Pool ? m_Pool->GetRng ()() % DESTINATION_CLEANUP_TIMEOUT_VARIANCE : 0))); m_CleanupTimer.async_wait (std::bind (&LeaseSetDestination::HandleCleanupTimer, shared_from_this (), std::placeholders::_1)); } @@ -825,7 +1004,7 @@ namespace client { if (it->second->IsEmpty () || ts > it->second->GetExpirationTime ()) // leaseset expired { - LogPrint (eLogWarning, "Destination: Remote LeaseSet ", it->second->GetIdentHash ().ToBase64 (), " expired"); + LogPrint (eLogDebug, "Destination: Remote LeaseSet ", it->second->GetIdentHash ().ToBase64 (), " expired"); it = m_RemoteLeaseSets.erase (it); } else @@ -833,37 +1012,120 @@ namespace client } } - ClientDestination::ClientDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params): - LeaseSetDestination (isPublic, params), m_Keys (keys), m_StreamingAckDelay (DEFAULT_INITIAL_ACK_DELAY), - m_DatagramDestination (nullptr), m_RefCounter (0), - m_ReadyChecker(GetService()) + ClientDestination::ClientDestination (boost::asio::io_context& service, const i2p::data::PrivateKeys& keys, + bool isPublic, const std::map * params): + LeaseSetDestination (service, isPublic, params), + m_Keys (keys), m_PreferredCryptoType (0), m_StreamingAckDelay (DEFAULT_INITIAL_ACK_DELAY), + m_StreamingOutboundSpeed (DEFAULT_MAX_OUTBOUND_SPEED), + m_StreamingInboundSpeed (DEFAULT_MAX_INBOUND_SPEED), + m_StreamingMaxConcurrentStreams (DEFAULT_MAX_CONCURRENT_STREAMS), + m_IsStreamingAnswerPings (DEFAULT_ANSWER_PINGS), m_LastPort (0), + m_DatagramDestination (nullptr), m_RefCounter (0), m_LastPublishedTimestamp (0), + m_ReadyChecker(service) { if (keys.IsOfflineSignature () && GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET) SetLeaseSetType (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2); // offline keys can be published with LS2 only - m_EncryptionKeyType = GetIdentity ()->GetCryptoKeyType (); // extract encryption type params for LS2 - if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2 && params) + std::set encryptionKeyTypes; + if (params) { auto it = params->find (I2CP_PARAM_LEASESET_ENCRYPTION_TYPE); if (it != params->end ()) - m_EncryptionKeyType = std::stoi(it->second); - } - - if (isPublic && m_EncryptionKeyType == GetIdentity ()->GetCryptoKeyType ()) // TODO: presist key type - PersistTemporaryKeys (); - else - i2p::data::PrivateKeys::GenerateCryptoKeyPair (m_EncryptionKeyType, m_EncryptionPrivateKey, m_EncryptionPublicKey); - m_Decryptor = i2p::data::PrivateKeys::CreateDecryptor (m_EncryptionKeyType, m_EncryptionPrivateKey); - if (isPublic) + { + // comma-separated values + std::vector values; + boost::split(values, it->second, boost::is_any_of(",")); + for (auto& it1: values) + { + try + { + i2p::data::CryptoKeyType cryptoType = std::stoi(it1); +#if !OPENSSL_PQ + if (cryptoType <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) // skip PQ keys if not supported +#endif + { + if (!m_PreferredCryptoType && cryptoType) + m_PreferredCryptoType = cryptoType; // first non-zero in the list + encryptionKeyTypes.insert (cryptoType); + } + } + catch (std::exception& ex) + { + LogPrint (eLogInfo, "Destination: Unexpected crypto type ", it1, ". ", ex.what ()); + continue; + } + } + } + } + // if no param or valid crypto type use from identity + if (encryptionKeyTypes.empty ()) + encryptionKeyTypes.insert ( { GetIdentity ()->GetCryptoKeyType (), + i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD }); // usually 0,4 + + for (auto& it: encryptionKeyTypes) + { + auto encryptionKey = std::make_shared (it); + if (IsPublic ()) + PersistTemporaryKeys (encryptionKey); + else + encryptionKey->GenerateKeys (); + encryptionKey->CreateDecryptor (); + if (it > i2p::data::CRYPTO_KEY_TYPE_ELGAMAL && GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET) + SetLeaseSetType (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2); // Only DSA can use LeaseSet1 + m_EncryptionKeys.emplace (it, encryptionKey); + } + + if (IsPublic ()) LogPrint (eLogInfo, "Destination: Local address ", GetIdentHash().ToBase32 (), " created"); - // extract streaming params - if (params) + try { - auto it = params->find (I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY); - if (it != params->end ()) - m_StreamingAckDelay = std::stoi(it->second); + if (params) + { + // extract streaming params + auto it = params->find (I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY); + if (it != params->end ()) + m_StreamingAckDelay = std::stoi(it->second); + it = params->find (I2CP_PARAM_STREAMING_MAX_OUTBOUND_SPEED); + if (it != params->end ()) + m_StreamingOutboundSpeed = std::stoi(it->second); + it = params->find (I2CP_PARAM_STREAMING_MAX_INBOUND_SPEED); + if (it != params->end ()) + m_StreamingInboundSpeed = std::stoi(it->second); + if (it != params->end ()) + m_StreamingMaxConcurrentStreams = std::stoi(it->second); + it = params->find (I2CP_PARAM_STREAMING_ANSWER_PINGS); + if (it != params->end ()) + m_IsStreamingAnswerPings = std::stoi (it->second); // 1 for true + + if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) + { + // authentication for encrypted LeaseSet + auto authType = GetAuthType (); + if (authType > 0) + { + m_AuthKeys = std::make_shared >(); + if (authType == i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_DH) + ReadAuthKey (I2CP_PARAM_LEASESET_CLIENT_DH, params); + else if (authType == i2p::data::ENCRYPTED_LEASESET_AUTH_TYPE_PSK) + ReadAuthKey (I2CP_PARAM_LEASESET_CLIENT_PSK, params); + else + LogPrint (eLogError, "Destination: Unexpected auth type: ", authType); + if (m_AuthKeys->size ()) + LogPrint (eLogInfo, "Destination: ", m_AuthKeys->size (), " auth keys read"); + else + { + LogPrint (eLogCritical, "Destination: No auth keys read for auth type: ", authType); + m_AuthKeys = nullptr; + } + } + } + } + } + catch (std::exception & ex) + { + LogPrint(eLogCritical, "Destination: Unable to parse parameters for destination: ", ex.what()); } } @@ -871,71 +1133,43 @@ namespace client { } - bool ClientDestination::Start () + void ClientDestination::Start () { - if (LeaseSetDestination::Start ()) + LeaseSetDestination::Start (); + m_StreamingDestination = std::make_shared (GetSharedFromThis ()); // TODO: + m_StreamingDestination->Start (); + for (auto& it: m_StreamingDestinationsByPorts) + it.second->Start (); + } + + void ClientDestination::Stop () + { + LogPrint(eLogDebug, "Destination: Stopping destination ", GetIdentHash().ToBase32(), ".b32.i2p"); + m_ReadyChecker.cancel(); + LogPrint(eLogDebug, "Destination: -> Stopping Streaming Destination"); + m_StreamingDestination->Stop (); + //m_StreamingDestination->SetOwner (nullptr); + m_StreamingDestination = nullptr; + + LogPrint(eLogDebug, "Destination: -> Stopping Streaming Destination by ports"); + for (auto& it: m_StreamingDestinationsByPorts) { - m_StreamingDestination = std::make_shared (GetSharedFromThis ()); // TODO: - m_StreamingDestination->Start (); - for (auto& it: m_StreamingDestinationsByPorts) - it.second->Start (); - return true; + it.second->Stop (); + //it.second->SetOwner (nullptr); } - else - return false; - } + m_StreamingDestinationsByPorts.clear (); + m_LastStreamingDestination = nullptr; - bool ClientDestination::Stop () - { - if (LeaseSetDestination::Stop ()) + if (m_DatagramDestination) { - m_ReadyChecker.cancel(); - m_StreamingDestination->Stop (); - //m_StreamingDestination->SetOwner (nullptr); - m_StreamingDestination = nullptr; - for (auto& it: m_StreamingDestinationsByPorts) - { - it.second->Stop (); - //it.second->SetOwner (nullptr); - } - m_StreamingDestinationsByPorts.clear (); - if (m_DatagramDestination) - { - delete m_DatagramDestination; - m_DatagramDestination = nullptr; - } - return true; + LogPrint(eLogDebug, "Destination: -> Stopping Datagram Destination"); + delete m_DatagramDestination; + m_DatagramDestination = nullptr; } - else - return false; + LeaseSetDestination::Stop (); + LogPrint(eLogDebug, "Destination: -> Stopping done"); } -#ifdef I2LUA - void ClientDestination::Ready(ReadyPromise & p) - { - ScheduleCheckForReady(&p); - } - - void ClientDestination::ScheduleCheckForReady(ReadyPromise * p) - { - // tick every 100ms - m_ReadyChecker.expires_from_now(boost::posix_time::milliseconds(100)); - m_ReadyChecker.async_wait([&, p] (const boost::system::error_code & ecode) { - HandleCheckForReady(ecode, p); - }); - } - - void ClientDestination::HandleCheckForReady(const boost::system::error_code & ecode, ReadyPromise * p) - { - if(ecode) // error happened - p->set_value(nullptr); - else if(IsReady()) // we are ready - p->set_value(std::shared_ptr(this)); - else // we are not ready - ScheduleCheckForReady(p); - } -#endif - void ClientDestination::HandleDataMessage (const uint8_t * buf, size_t len) { uint32_t length = bufbe32toh (buf); @@ -953,9 +1187,15 @@ namespace client case PROTOCOL_TYPE_STREAMING: { // streaming protocol - auto dest = GetStreamingDestination (toPort); - if (dest) - dest->HandleDataMessagePayload (buf, length); + if (toPort != m_LastPort || !m_LastStreamingDestination) + { + m_LastStreamingDestination = GetStreamingDestination (toPort); + if (!m_LastStreamingDestination) + m_LastStreamingDestination = m_StreamingDestination; // if no destination on port use default + m_LastPort = toPort; + } + if (m_LastStreamingDestination) + m_LastStreamingDestination->HandleDataMessagePayload (buf, length); else LogPrint (eLogError, "Destination: Missing streaming destination"); } @@ -967,21 +1207,34 @@ namespace client else LogPrint (eLogError, "Destination: Missing datagram destination"); break; + case PROTOCOL_TYPE_RAW: + // raw datagram + if (m_DatagramDestination) + m_DatagramDestination->HandleDataMessagePayload (fromPort, toPort, buf, length, true); + else + LogPrint (eLogError, "Destination: Missing raw datagram destination"); + break; default: - LogPrint (eLogError, "Destination: Data: unexpected protocol ", buf[9]); + LogPrint (eLogError, "Destination: Data: Unexpected protocol ", buf[9]); } } - void ClientDestination::CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, int port) + void ClientDestination::CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, uint16_t port) { if (!streamRequestComplete) { - LogPrint (eLogError, "Destination: request callback is not specified in CreateStream"); + LogPrint (eLogError, "Destination: Request callback is not specified in CreateStream"); return; } auto leaseSet = FindLeaseSet (dest); if (leaseSet) - streamRequestComplete(CreateStream (leaseSet, port)); + { + auto stream = CreateStream (leaseSet, port); + boost::asio::post (GetService (), [streamRequestComplete, stream]() + { + streamRequestComplete(stream); + }); + } else { auto s = GetSharedFromThis (); @@ -996,11 +1249,11 @@ namespace client } } - void ClientDestination::CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr dest, int port) + void ClientDestination::CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr dest, uint16_t port) { if (!streamRequestComplete) { - LogPrint (eLogError, "Destination: request callback is not specified in CreateStream"); + LogPrint (eLogError, "Destination: Request callback is not specified in CreateStream"); return; } auto s = GetSharedFromThis (); @@ -1014,7 +1267,42 @@ namespace client }); } - std::shared_ptr ClientDestination::CreateStream (std::shared_ptr remote, int port) + template + std::shared_ptr ClientDestination::CreateStreamSync (const Dest& dest, uint16_t port) + { + volatile bool done = false; + std::shared_ptr stream; + std::condition_variable streamRequestComplete; + std::mutex streamRequestCompleteMutex; + CreateStream ( + [&done, &streamRequestComplete, &streamRequestCompleteMutex, &stream](std::shared_ptr s) + { + stream = s; + std::unique_lock l(streamRequestCompleteMutex); + streamRequestComplete.notify_all (); + done = true; + }, + dest, port); + while (!done) + { + std::unique_lock l(streamRequestCompleteMutex); + if (!done) + streamRequestComplete.wait (l); + } + return stream; + } + + std::shared_ptr ClientDestination::CreateStream (const i2p::data::IdentHash& dest, uint16_t port) + { + return CreateStreamSync (dest, port); + } + + std::shared_ptr ClientDestination::CreateStream (std::shared_ptr dest, uint16_t port) + { + return CreateStreamSync (dest, port); + } + + std::shared_ptr ClientDestination::CreateStream (std::shared_ptr remote, uint16_t port) { if (m_StreamingDestination) return m_StreamingDestination->CreateNewOutgoingStream (remote, port); @@ -1022,7 +1310,36 @@ namespace client return nullptr; } - std::shared_ptr ClientDestination::GetStreamingDestination (int port) const + void ClientDestination::SendPing (const i2p::data::IdentHash& to) + { + if (m_StreamingDestination) + { + auto leaseSet = FindLeaseSet (to); + if (leaseSet) + m_StreamingDestination->SendPing (leaseSet); + else + { + auto s = m_StreamingDestination; + RequestDestination (to, + [s](std::shared_ptr ls) + { + if (ls) s->SendPing (ls); + }); + } + } + } + + void ClientDestination::SendPing (std::shared_ptr to) + { + auto s = m_StreamingDestination; + RequestDestinationWithEncryptedLeaseSet (to, + [s](std::shared_ptr ls) + { + if (ls) s->SendPing (ls); + }); + } + + std::shared_ptr ClientDestination::GetStreamingDestination (uint16_t port) const { if (port) { @@ -1030,8 +1347,9 @@ namespace client if (it != m_StreamingDestinationsByPorts.end ()) return it->second; } - // if port is zero or not found, use default destination - return m_StreamingDestination; + else // if port is zero, use default destination + return m_StreamingDestination; + return nullptr; } void ClientDestination::AcceptStreams (const i2p::stream::StreamingDestination::Acceptor& acceptor) @@ -1059,7 +1377,7 @@ namespace client m_StreamingDestination->AcceptOnce (acceptor); } - std::shared_ptr ClientDestination::CreateStreamingDestination (int port, bool gzip) + std::shared_ptr ClientDestination::CreateStreamingDestination (uint16_t port, bool gzip) { auto dest = std::make_shared (GetSharedFromThis (), port, gzip); if (port) @@ -1069,10 +1387,25 @@ namespace client return dest; } - i2p::datagram::DatagramDestination * ClientDestination::CreateDatagramDestination () + std::shared_ptr ClientDestination::RemoveStreamingDestination (uint16_t port) + { + if (port) + { + auto it = m_StreamingDestinationsByPorts.find (port); + if (it != m_StreamingDestinationsByPorts.end ()) + { + auto ret = it->second; + m_StreamingDestinationsByPorts.erase (it); + return ret; + } + } + return nullptr; + } + + i2p::datagram::DatagramDestination * ClientDestination::CreateDatagramDestination (bool gzip) { if (m_DatagramDestination == nullptr) - m_DatagramDestination = new i2p::datagram::DatagramDestination (GetSharedFromThis ()); + m_DatagramDestination = new i2p::datagram::DatagramDestination (GetSharedFromThis (), gzip); return m_DatagramDestination; } @@ -1090,50 +1423,110 @@ namespace client return ret; } - void ClientDestination::PersistTemporaryKeys () + void ClientDestination::PersistTemporaryKeys (std::shared_ptr keys) { + if (!keys) return; std::string ident = GetIdentHash().ToBase32(); - std::string path = i2p::fs::DataDirPath("destinations", (ident + ".dat")); + std::string path = i2p::fs::DataDirPath("destinations", ident + "." + std::to_string (keys->keyType) + ".dat"); std::ifstream f(path, std::ifstream::binary); - - if (f) { - f.read ((char *)m_EncryptionPublicKey, 256); - f.read ((char *)m_EncryptionPrivateKey, 256); - return; + if (f) + { + size_t len = 0; + if (keys->keyType == i2p::data::CRYPTO_KEY_TYPE_ELGAMAL) + len = 512; + else if (keys->keyType == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + { + f.seekg (0, std::ios::end); + len = f.tellg(); + f.seekg (0, std::ios::beg); + } + + if (len == 512) + { + char pub[256], priv[256]; + f.read (pub, 256); + memcpy (keys->pub.data(), pub, keys->pub.size()); + f.read (priv, 256); + memcpy (keys->priv.data (), priv, keys->priv.size ()); + } + else + { + f.read ((char *)keys->pub.data(), keys->pub.size()); + f.read ((char *)keys->priv.data(), keys->priv.size()); + } + if (f) + return; + else + LogPrint(eLogWarning, "Destination: Can't read keys from ", path); } - LogPrint (eLogInfo, "Destination: Creating new temporary keys of type for address ", ident, ".b32.i2p"); - memset (m_EncryptionPrivateKey, 0, 256); - memset (m_EncryptionPublicKey, 0, 256); - i2p::data::PrivateKeys::GenerateCryptoKeyPair (GetIdentity ()->GetCryptoKeyType (), m_EncryptionPrivateKey, m_EncryptionPublicKey); - + LogPrint (eLogInfo, "Destination: Creating new temporary keys of type ", keys->keyType, " for address ", ident, ".b32.i2p"); + memset (keys->priv.data (), 0, keys->priv.size ()); + memset (keys->pub.data (), 0, keys->pub.size ()); + keys->GenerateKeys (); + std::ofstream f1 (path, std::ofstream::binary | std::ofstream::out); - if (f1) { - f1.write ((char *)m_EncryptionPublicKey, 256); - f1.write ((char *)m_EncryptionPrivateKey, 256); - return; + if (f1) + { + f1.write ((char *)keys->pub.data (), keys->pub.size ()); + f1.write ((char *)keys->priv.data (), keys->priv.size ()); } - LogPrint(eLogError, "Destinations: Can't save keys to ", path); + if (!f1) + LogPrint(eLogError, "Destination: Can't save keys to ", path); } - void ClientDestination::CreateNewLeaseSet (std::vector > tunnels) + void ClientDestination::CreateNewLeaseSet (const std::vector >& tunnels) { std::shared_ptr leaseSet; if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET) { - leaseSet = std::make_shared (GetIdentity (), m_EncryptionPublicKey, tunnels); - // sign - Sign (leaseSet->GetBuffer (), leaseSet->GetBufferLen () - leaseSet->GetSignatureLen (), leaseSet->GetSignature ()); + auto it = m_EncryptionKeys.find (i2p::data::CRYPTO_KEY_TYPE_ELGAMAL); + if (it != m_EncryptionKeys.end ()) + { + leaseSet = std::make_shared (GetIdentity (), it->second->pub.data (), tunnels); + // sign + Sign (leaseSet->GetBuffer (), leaseSet->GetBufferLen () - leaseSet->GetSignatureLen (), leaseSet->GetSignature ()); + } + else + LogPrint (eLogError, "Destinations: Wrong encryption key type for LeaseSet type 1"); } else { // standard LS2 (type 3) first - auto keyLen = m_Decryptor ? m_Decryptor->GetPublicKeyLen () : 256; + if (m_EncryptionKeys.empty ()) + { + LogPrint (eLogError, "Destinations: No encryption keys"); + return; + } + + i2p::data::LocalLeaseSet2::EncryptionKeys keySections; + std::shared_ptr preferredSection; + if (m_EncryptionKeys.size () == 1) + preferredSection = m_EncryptionKeys.begin ()->second; // only key + else + { + for (const auto& it: m_EncryptionKeys) + if (it.first == m_PreferredCryptoType) + preferredSection = it.second; + else + keySections.push_back (it.second); + } + if (preferredSection) + keySections.push_front (preferredSection); // make preferred first + + auto publishedTimestamp = i2p::util::GetSecondsSinceEpoch (); + if (publishedTimestamp <= m_LastPublishedTimestamp) + { + LogPrint (eLogDebug, "Destination: LeaseSet update at the same second"); + publishedTimestamp++; // force newer timestamp + } + bool isPublishedEncrypted = GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2; auto ls2 = std::make_shared (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2, - m_Keys, m_EncryptionKeyType, keyLen, m_EncryptionPublicKey, tunnels); - if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) // encrypt if type 5 - ls2 = std::make_shared (ls2, m_Keys); + m_Keys, keySections, tunnels, IsPublic (), publishedTimestamp, isPublishedEncrypted); + if (isPublishedEncrypted) // encrypt if type 5 + ls2 = std::make_shared (ls2, m_Keys, GetAuthType (), m_AuthKeys); leaseSet = ls2; + m_LastPublishedTimestamp = publishedTimestamp; } SetLeaseSet (leaseSet); } @@ -1143,13 +1536,111 @@ namespace client if (m_DatagramDestination) m_DatagramDestination->CleanUp (); } - bool ClientDestination::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const + bool ClientDestination::Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const { - if (m_Decryptor) - return m_Decryptor->Decrypt (encrypted, data, ctx, true); + std::shared_ptr encryptionKey; + if (!m_EncryptionKeys.empty ()) + { + if (m_EncryptionKeys.rbegin ()->first == preferredCrypto) + encryptionKey = m_EncryptionKeys.rbegin ()->second; + else + { + auto it = m_EncryptionKeys.find (preferredCrypto); + if (it != m_EncryptionKeys.end ()) + encryptionKey = it->second; + } + if (!encryptionKey) + encryptionKey = m_EncryptionKeys.rbegin ()->second; + } + if (encryptionKey) + return encryptionKey->decryptor->Decrypt (encrypted, data); else - LogPrint (eLogError, "Destinations: decryptor is not set"); + LogPrint (eLogError, "Destinations: Decryptor is not set"); return false; } + + bool ClientDestination::SupportsEncryptionType (i2p::data::CryptoKeyType keyType) const + { +#if __cplusplus >= 202002L // C++20 + return m_EncryptionKeys.contains (keyType); +#else + return m_EncryptionKeys.count (keyType) > 0; +#endif + } + + i2p::data::CryptoKeyType ClientDestination::GetRatchetsHighestCryptoType () const + { + if (m_EncryptionKeys.empty ()) return 0; + auto cryptoType = m_EncryptionKeys.rbegin ()->first; + return cryptoType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD ? cryptoType : 0; + } + + const uint8_t * ClientDestination::GetEncryptionPublicKey (i2p::data::CryptoKeyType keyType) const + { + auto it = m_EncryptionKeys.find (keyType); + if (it != m_EncryptionKeys.end ()) + return it->second->pub.data (); + return nullptr; + } + + void ClientDestination::ReadAuthKey (const std::string& group, const std::map * params) + { + for (auto it: *params) + if (it.first.length () >= group.length () && !it.first.compare (0, group.length (), group)) + { + auto pos = it.second.find (':'); + if (pos != std::string::npos) + { + i2p::data::AuthPublicKey pubKey; + if (pubKey.FromBase64 (it.second.substr (pos+1))) + m_AuthKeys->push_back (pubKey); + else + LogPrint (eLogCritical, "Destination: Unexpected auth key: ", it.second.substr (pos+1)); + } + } + } + + bool ClientDestination::DeleteStream (uint32_t recvStreamID) + { + if (m_StreamingDestination->DeleteStream (recvStreamID)) + return true; + for (auto it: m_StreamingDestinationsByPorts) + if (it.second->DeleteStream (recvStreamID)) + return true; + return false; + } + + RunnableClientDestination::RunnableClientDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params): + RunnableService ("Destination"), + ClientDestination (GetIOService (), keys, isPublic, params) + { + if (!GetNickname ().empty ()) + RunnableService::SetName (GetNickname ()); + } + + RunnableClientDestination::~RunnableClientDestination () + { + if (IsRunning ()) + Stop (); + } + + void RunnableClientDestination::Start () + { + if (!IsRunning ()) + { + ClientDestination::Start (); + StartIOService (); + } + } + + void RunnableClientDestination::Stop () + { + if (IsRunning ()) + { + ClientDestination::Stop (); + StopIOService (); + } + } + } } diff --git a/libi2pd/Destination.h b/libi2pd/Destination.h index b55a7490..35557859 100644 --- a/libi2pd/Destination.h +++ b/libi2pd/Destination.h @@ -1,25 +1,34 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef DESTINATION_H__ #define DESTINATION_H__ +#include #include #include #include #include -#include +#include +#include #include #include -#ifdef I2LUA -#include -#endif #include #include "Identity.h" #include "TunnelPool.h" #include "Crypto.h" +#include "CryptoKey.h" #include "LeaseSet.h" #include "Garlic.h" #include "NetDb.hpp" #include "Streaming.h" #include "Datagram.h" +#include "util.h" namespace i2p { @@ -28,13 +37,15 @@ namespace client const uint8_t PROTOCOL_TYPE_STREAMING = 6; const uint8_t PROTOCOL_TYPE_DATAGRAM = 17; const uint8_t PROTOCOL_TYPE_RAW = 18; - const int PUBLISH_CONFIRMATION_TIMEOUT = 5; // in seconds - const int PUBLISH_VERIFICATION_TIMEOUT = 10; // in seconds after successful publish + const int PUBLISH_CONFIRMATION_TIMEOUT = 1800; // in milliseconds + const int PUBLISH_VERIFICATION_TIMEOUT = 5; // in seconds after successful publish + const int PUBLISH_VERIFICATION_TIMEOUT_VARIANCE = 3; // in seconds const int PUBLISH_MIN_INTERVAL = 20; // in seconds const int PUBLISH_REGULAR_VERIFICATION_INTERNAL = 100; // in seconds periodically - const int LEASESET_REQUEST_TIMEOUT = 5; // in seconds - const int MAX_LEASESET_REQUEST_TIMEOUT = 40; // in seconds - const int DESTINATION_CLEANUP_TIMEOUT = 3; // in minutes + const int LEASESET_REQUEST_TIMEOUT = 1600; // in milliseconds + const int MAX_LEASESET_REQUEST_TIMEOUT = 12000; // in milliseconds + const int DESTINATION_CLEANUP_TIMEOUT = 44; // in seconds + const int DESTINATION_CLEANUP_TIMEOUT_VARIANCE = 30; // in seconds const unsigned int MAX_NUM_FLOODFILLS_PER_REQUEST = 7; // I2CP @@ -46,15 +57,26 @@ namespace client const int DEFAULT_INBOUND_TUNNELS_QUANTITY = 5; const char I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY[] = "outbound.quantity"; const int DEFAULT_OUTBOUND_TUNNELS_QUANTITY = 5; + const char I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE[] = "inbound.lengthVariance"; + const int DEFAULT_INBOUND_TUNNELS_LENGTH_VARIANCE = 0; + const char I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE[] = "outbound.lengthVariance"; + const int DEFAULT_OUTBOUND_TUNNELS_LENGTH_VARIANCE = 0; const char I2CP_PARAM_EXPLICIT_PEERS[] = "explicitPeers"; const int STREAM_REQUEST_TIMEOUT = 60; //in seconds const char I2CP_PARAM_TAGS_TO_SEND[] = "crypto.tagsToSend"; const int DEFAULT_TAGS_TO_SEND = 40; + const char I2CP_PARAM_RATCHET_INBOUND_TAGS[] = "crypto.ratchet.inboundTags"; + const char I2CP_PARAM_RATCHET_OUTBOUND_TAGS[] = "crypto.ratchet.outboundTags"; // not used yet const char I2CP_PARAM_INBOUND_NICKNAME[] = "inbound.nickname"; const char I2CP_PARAM_OUTBOUND_NICKNAME[] = "outbound.nickname"; + const char I2CP_PARAM_DONT_PUBLISH_LEASESET[] = "i2cp.dontPublishLeaseSet"; const char I2CP_PARAM_LEASESET_TYPE[] = "i2cp.leaseSetType"; - const int DEFAULT_LEASESET_TYPE = 1; + const int DEFAULT_LEASESET_TYPE = 3; const char I2CP_PARAM_LEASESET_ENCRYPTION_TYPE[] = "i2cp.leaseSetEncType"; + const char I2CP_PARAM_LEASESET_PRIV_KEY[] = "i2cp.leaseSetPrivKey"; // PSK decryption key, base64 + const char I2CP_PARAM_LEASESET_AUTH_TYPE[] = "i2cp.leaseSetAuthType"; + const char I2CP_PARAM_LEASESET_CLIENT_DH[] = "i2cp.leaseSetClient.dh"; // group of i2cp.leaseSetClient.dh.nnn + const char I2CP_PARAM_LEASESET_CLIENT_PSK[] = "i2cp.leaseSetClient.psk"; // group of i2cp.leaseSetClient.psk.nnn // latency const char I2CP_PARAM_MIN_TUNNEL_LATENCY[] = "latency.min"; @@ -65,7 +87,19 @@ namespace client // streaming const char I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY[] = "i2p.streaming.initialAckDelay"; const int DEFAULT_INITIAL_ACK_DELAY = 200; // milliseconds - + const char I2CP_PARAM_STREAMING_MAX_OUTBOUND_SPEED[] = "i2p.streaming.maxOutboundSpeed"; // bytes/sec + const int DEFAULT_MAX_OUTBOUND_SPEED = 1730000000; // no more than 1.73 Gbytes/s + const char I2CP_PARAM_STREAMING_MAX_INBOUND_SPEED[] = "i2p.streaming.maxInboundSpeed"; // bytes/sec + const int DEFAULT_MAX_INBOUND_SPEED = 1730000000; // no more than 1.73 Gbytes/s + const char I2CP_PARAM_STREAMING_ANSWER_PINGS[] = "i2p.streaming.answerPings"; + const int DEFAULT_ANSWER_PINGS = true; + const char I2CP_PARAM_STREAMING_PROFILE[] = "i2p.streaming.profile"; + const int STREAMING_PROFILE_BULK = 1; // high bandwidth + const int STREAMING_PROFILE_INTERACTIVE = 2; // low bandwidth + const int DEFAULT_STREAMING_PROFILE = STREAMING_PROFILE_BULK; + const char I2CP_PARAM_STREAMING_MAX_CONCURRENT_STREAMS[] = "i2p.streaming.maxConcurrentStreams"; + const int DEFAULT_MAX_CONCURRENT_STREAMS = 2048; + typedef std::function stream)> StreamRequestComplete; class LeaseSetDestination: public i2p::garlic::GarlicDestination, @@ -75,8 +109,8 @@ namespace client // leaseSet = nullptr means not found struct LeaseSetRequest { - LeaseSetRequest (boost::asio::io_service& service): requestTime (0), requestTimeoutTimer (service) {}; - std::set excluded; + LeaseSetRequest (boost::asio::io_context& service): requestTime (0), requestTimeoutTimer (service) {}; + std::unordered_set excluded; uint64_t requestTime; boost::asio::deadline_timer requestTimeoutTimer; std::list requestComplete; @@ -91,114 +125,120 @@ namespace client } }; - public: - LeaseSetDestination (bool isPublic, const std::map * params = nullptr); + LeaseSetDestination (boost::asio::io_context& service, bool isPublic, const std::map * params = nullptr); ~LeaseSetDestination (); const std::string& GetNickname () const { return m_Nickname; }; + auto& GetService () { return m_Service; }; - virtual bool Start (); - virtual bool Stop (); + virtual void Start (); + virtual void Stop (); /** i2cp reconfigure */ virtual bool Reconfigure(std::map i2cpOpts); - - bool IsRunning () const { return m_IsRunning; }; - boost::asio::io_service& GetService () { return m_Service; }; + std::shared_ptr GetTunnelPool () { return m_Pool; }; bool IsReady () const { return m_LeaseSet && !m_LeaseSet->IsExpired () && m_Pool->GetOutboundTunnels ().size () > 0; }; std::shared_ptr FindLeaseSet (const i2p::data::IdentHash& ident); bool RequestDestination (const i2p::data::IdentHash& dest, RequestComplete requestComplete = nullptr); - bool RequestDestinationWithEncryptedLeaseSet (std::shared_ptr dest, RequestComplete requestComplete = nullptr); + bool RequestDestinationWithEncryptedLeaseSet (std::shared_ptr dest, RequestComplete requestComplete = nullptr); void CancelDestinationRequest (const i2p::data::IdentHash& dest, bool notify = true); void CancelDestinationRequestWithEncryptedLeaseSet (std::shared_ptr dest, bool notify = true); // implements GarlicDestination - std::shared_ptr GetLeaseSet (); - std::shared_ptr GetTunnelPool () const { return m_Pool; } - void HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from); + std::shared_ptr GetLeaseSet () override; + std::shared_ptr GetTunnelPool () const override { return m_Pool; } // override GarlicDestination - bool SubmitSessionKey (const uint8_t * key, const uint8_t * tag); - void ProcessGarlicMessage (std::shared_ptr msg); - void ProcessDeliveryStatusMessage (std::shared_ptr msg); - void SetLeaseSetUpdated (); + bool SubmitSessionKey (const uint8_t * key, const uint8_t * tag) override; + void SubmitECIESx25519Key (const uint8_t * key, uint64_t tag) override; + void ProcessGarlicMessage (std::shared_ptr msg) override; + void ProcessDeliveryStatusMessage (std::shared_ptr msg) override; + void SetLeaseSetUpdated (bool post) override; + + bool IsPublic () const { return m_IsPublic; }; + void SetPublic (bool pub) { m_IsPublic = pub; }; protected: + // implements GarlicDestination + void HandleI2NPMessage (const uint8_t * buf, size_t len) override; + bool HandleCloveI2NPMessage (I2NPMessageType typeID, const uint8_t * payload, + size_t len, uint32_t msgID, i2p::garlic::ECIESX25519AEADRatchetSession * from) override; + void SetLeaseSet (std::shared_ptr newLeaseSet); int GetLeaseSetType () const { return m_LeaseSetType; }; void SetLeaseSetType (int leaseSetType) { m_LeaseSetType = leaseSetType; }; + int GetAuthType () const { return m_AuthType; }; virtual void CleanupDestination () {}; // additional clean up in derived classes + virtual i2p::data::CryptoKeyType GetPreferredCryptoType () const = 0; // I2CP virtual void HandleDataMessage (const uint8_t * buf, size_t len) = 0; - virtual void CreateNewLeaseSet (std::vector > tunnels) = 0; - + virtual void CreateNewLeaseSet (const std::vector >& tunnels) = 0; + private: - void Run (); void UpdateLeaseSet (); std::shared_ptr GetLeaseSetMt (); void Publish (); void HandlePublishConfirmationTimer (const boost::system::error_code& ecode); void HandlePublishVerificationTimer (const boost::system::error_code& ecode); void HandlePublishDelayTimer (const boost::system::error_code& ecode); - void HandleDatabaseStoreMessage (const uint8_t * buf, size_t len); + void HandleDatabaseStoreMessage (const uint8_t * buf, size_t len, i2p::garlic::ECIESX25519AEADRatchetSession * from); void HandleDatabaseSearchReplyMessage (const uint8_t * buf, size_t len); - void HandleDeliveryStatusMessage (std::shared_ptr msg); + void HandleDeliveryStatusMessage (uint32_t msgID); void RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete, std::shared_ptr requestedBlindedKey = nullptr); - bool SendLeaseSetRequest (const i2p::data::IdentHash& dest, std::shared_ptr nextFloodfill, std::shared_ptr request); + bool SendLeaseSetRequest (const i2p::data::IdentHash& dest, std::shared_ptr nextFloodfill, std::shared_ptr request); + void SendNextLeaseSetRequest (const i2p::data::IdentHash& key, std::shared_ptr request); void HandleRequestTimoutTimer (const boost::system::error_code& ecode, const i2p::data::IdentHash& dest); void HandleCleanupTimer (const boost::system::error_code& ecode); void CleanupRemoteLeaseSets (); private: - volatile bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; + boost::asio::io_context& m_Service; mutable std::mutex m_RemoteLeaseSetsMutex; - std::map > m_RemoteLeaseSets; - std::map > m_LeaseSetRequests; + std::unordered_map > m_RemoteLeaseSets; + std::unordered_map > m_LeaseSetRequests; + std::list > m_IncomingMsgsQueue; + mutable std::mutex m_IncomingMsgsQueueMutex; + std::shared_ptr m_Pool; std::mutex m_LeaseSetMutex; std::shared_ptr m_LeaseSet; bool m_IsPublic; uint32_t m_PublishReplyToken; uint64_t m_LastSubmissionTime; // in seconds - std::set m_ExcludedFloodfills; // for publishing + std::unordered_set m_ExcludedFloodfills; // for publishing boost::asio::deadline_timer m_PublishConfirmationTimer, m_PublishVerificationTimer, m_PublishDelayTimer, m_CleanupTimer; std::string m_Nickname; - int m_LeaseSetType; + int m_LeaseSetType, m_AuthType; + std::unique_ptr > m_LeaseSetPrivKey; // non-null if presented public: // for HTTP only int GetNumRemoteLeaseSets () const { return m_RemoteLeaseSets.size (); }; const decltype(m_RemoteLeaseSets)& GetLeaseSets () const { return m_RemoteLeaseSets; }; + bool IsEncryptedLeaseSet () const { return m_LeaseSetType == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2; }; + bool IsPerClientAuth () const { return m_AuthType > 0; }; }; class ClientDestination: public LeaseSetDestination { public: -#ifdef I2LUA - // type for informing that a client destination is ready - typedef std::promise > ReadyPromise; - // informs promise with shared_from_this() when this destination is ready to use - // if cancelled before ready, informs promise with nullptr - void Ready(ReadyPromise & p); -#endif - ClientDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params = nullptr); + ClientDestination (boost::asio::io_context& service, const i2p::data::PrivateKeys& keys, + bool isPublic, const std::map * params = nullptr); ~ClientDestination (); - virtual bool Start (); - virtual bool Stop (); + void Start () override; + void Stop () override; const i2p::data::PrivateKeys& GetPrivateKeys () const { return m_Keys; }; void Sign (const uint8_t * buf, int len, uint8_t * signature) const { m_Keys.Sign (buf, len, signature); }; @@ -209,62 +249,96 @@ namespace client int GetRefCounter () const { return m_RefCounter; }; // streaming - std::shared_ptr CreateStreamingDestination (int port, bool gzip = true); // additional - std::shared_ptr GetStreamingDestination (int port = 0) const; + std::shared_ptr CreateStreamingDestination (uint16_t port, bool gzip = true); // additional + std::shared_ptr GetStreamingDestination (uint16_t port = 0) const; + std::shared_ptr RemoveStreamingDestination (uint16_t port); // following methods operate with default streaming destination - void CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, int port = 0); - void CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr dest, int port = 0); - std::shared_ptr CreateStream (std::shared_ptr remote, int port = 0); + void CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, uint16_t port = 0); + void CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr dest, uint16_t port = 0); + std::shared_ptr CreateStream (const i2p::data::IdentHash& dest, uint16_t port = 0); // sync + std::shared_ptr CreateStream (std::shared_ptr dest, uint16_t port = 0); // sync + std::shared_ptr CreateStream (std::shared_ptr remote, uint16_t port = 0); + void SendPing (const i2p::data::IdentHash& to); + void SendPing (std::shared_ptr to); void AcceptStreams (const i2p::stream::StreamingDestination::Acceptor& acceptor); void StopAcceptingStreams (); bool IsAcceptingStreams () const; void AcceptOnce (const i2p::stream::StreamingDestination::Acceptor& acceptor); int GetStreamingAckDelay () const { return m_StreamingAckDelay; } + int GetStreamingOutboundSpeed () const { return m_StreamingOutboundSpeed; } + int GetStreamingInboundSpeed () const { return m_StreamingInboundSpeed; } + int GetStreamingMaxConcurrentStreams () const { return m_StreamingMaxConcurrentStreams; } + bool IsStreamingAnswerPings () const { return m_IsStreamingAnswerPings; } // datagram - i2p::datagram::DatagramDestination * GetDatagramDestination () const { return m_DatagramDestination; }; - i2p::datagram::DatagramDestination * CreateDatagramDestination (); + i2p::datagram::DatagramDestination * GetDatagramDestination () const { return m_DatagramDestination; }; + i2p::datagram::DatagramDestination * CreateDatagramDestination (bool gzip = true); // implements LocalDestination - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const; - std::shared_ptr GetIdentity () const { return m_Keys.GetPublic (); }; + bool Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const override; + std::shared_ptr GetIdentity () const override { return m_Keys.GetPublic (); }; + bool SupportsEncryptionType (i2p::data::CryptoKeyType keyType) const override; + const uint8_t * GetEncryptionPublicKey (i2p::data::CryptoKeyType keyType) const override; protected: - void CleanupDestination (); + // GarlicDestionation + i2p::data::CryptoKeyType GetRatchetsHighestCryptoType () const override; + // LeaseSetDestination + void CleanupDestination () override; + i2p::data::CryptoKeyType GetPreferredCryptoType () const override { return m_PreferredCryptoType; } // I2CP - void HandleDataMessage (const uint8_t * buf, size_t len); - void CreateNewLeaseSet (std::vector > tunnels); - + void HandleDataMessage (const uint8_t * buf, size_t len) override; + void CreateNewLeaseSet (const std::vector >& tunnels) override; + private: - std::shared_ptr GetSharedFromThis () - { return std::static_pointer_cast(shared_from_this ()); } - void PersistTemporaryKeys (); -#ifdef I2LUA - void ScheduleCheckForReady(ReadyPromise * p); - void HandleCheckForReady(const boost::system::error_code & ecode, ReadyPromise * p); -#endif + std::shared_ptr GetSharedFromThis () { + return std::static_pointer_cast(shared_from_this ()); + } + void PersistTemporaryKeys (std::shared_ptr keys); + void ReadAuthKey (const std::string& group, const std::map * params); + + template + std::shared_ptr CreateStreamSync (const Dest& dest, uint16_t port); + private: i2p::data::PrivateKeys m_Keys; - uint8_t m_EncryptionPublicKey[256], m_EncryptionPrivateKey[256]; - i2p::data::CryptoKeyType m_EncryptionKeyType; - std::shared_ptr m_Decryptor; - - int m_StreamingAckDelay; + std::map > m_EncryptionKeys; // last is most preferable + i2p::data::CryptoKeyType m_PreferredCryptoType; + + int m_StreamingAckDelay,m_StreamingOutboundSpeed, m_StreamingInboundSpeed, m_StreamingMaxConcurrentStreams; + bool m_IsStreamingAnswerPings; std::shared_ptr m_StreamingDestination; // default std::map > m_StreamingDestinationsByPorts; + std::shared_ptr m_LastStreamingDestination; uint16_t m_LastPort; // for server tunnels i2p::datagram::DatagramDestination * m_DatagramDestination; int m_RefCounter; // how many clients(tunnels) use this destination + uint64_t m_LastPublishedTimestamp; boost::asio::deadline_timer m_ReadyChecker; + std::shared_ptr > m_AuthKeys; // we don't need them for I2CP + public: // for HTTP only std::vector > GetAllStreams () const; + bool DeleteStream (uint32_t recvStreamID); }; + + class RunnableClientDestination: private i2p::util::RunnableService, public ClientDestination + { + public: + + RunnableClientDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params = nullptr); + ~RunnableClientDestination (); + + void Start (); + void Stop (); + }; + } } diff --git a/libi2pd/ECIESX25519AEADRatchetSession.cpp b/libi2pd/ECIESX25519AEADRatchetSession.cpp new file mode 100644 index 00000000..08af4be3 --- /dev/null +++ b/libi2pd/ECIESX25519AEADRatchetSession.cpp @@ -0,0 +1,1427 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include "Log.h" +#include "util.h" +#include "Crypto.h" +#include "PostQuantum.h" +#include "Elligator.h" +#include "Tag.h" +#include "I2PEndian.h" +#include "Timestamp.h" +#include "Tunnel.h" +#include "TunnelPool.h" +#include "Transports.h" +#include "ECIESX25519AEADRatchetSession.h" + +namespace i2p +{ +namespace garlic +{ + + void RatchetTagSet::DHInitialize (const uint8_t * rootKey, const uint8_t * k) + { + // DH_INITIALIZE(rootKey, k) + uint8_t keydata[64]; + i2p::crypto::HKDF (rootKey, k, 32, "KDFDHRatchetStep", keydata); // keydata = HKDF(rootKey, k, "KDFDHRatchetStep", 64) + memcpy (m_NextRootKey, keydata, 32); // nextRootKey = keydata[0:31] + i2p::crypto::HKDF (keydata + 32, nullptr, 0, "TagAndKeyGenKeys", m_SessionTagKeyData); + // [sessTag_ck, symmKey_ck] = HKDF(keydata[32:63], ZEROLEN, "TagAndKeyGenKeys", 64) + memcpy (m_SymmKeyCK, (const uint8_t *)m_SessionTagKeyData + 32, 32); + m_NextSymmKeyIndex = 0; + } + + void RatchetTagSet::NextSessionTagRatchet () + { + i2p::crypto::HKDF (m_SessionTagKeyData, nullptr, 0, "STInitialization", m_SessionTagKeyData); // [sessTag_ck, sesstag_constant] = HKDF(sessTag_ck, ZEROLEN, "STInitialization", 64) + memcpy (m_SessTagConstant, (const uint8_t *)m_SessionTagKeyData + 32, 32); // SESSTAG_CONSTANT = keydata[32:63] + m_NextIndex = 0; + } + + uint64_t RatchetTagSet::GetNextSessionTag () + { + m_NextIndex++; + if (m_NextIndex >= 65535) + { + LogPrint (eLogError, "Garlic: Tagset ", GetTagSetID (), " is empty"); + return 0; + } + i2p::crypto::HKDF (m_SessionTagKeyData, m_SessTagConstant, 32, "SessionTagKeyGen", m_SessionTagKeyData); // [sessTag_ck, tag] = HKDF(sessTag_chainkey, SESSTAG_CONSTANT, "SessionTagKeyGen", 64) + return m_SessionTagKeyData.GetLL ()[4]; // tag = keydata[32:39] + } + + void RatchetTagSet::GetSymmKey (int index, uint8_t * key) + { + if (index >= m_NextSymmKeyIndex) + { + auto num = index + 1 - m_NextSymmKeyIndex; + if (!m_NextSymmKeyIndex) + { + i2p::crypto::HKDF (m_SymmKeyCK, nullptr, 0, "SymmetricRatchet", m_CurrentSymmKeyCK); // keydata_0 = HKDF(symmKey_ck, SYMMKEY_CONSTANT, "SymmetricRatchet", 64) + m_NextSymmKeyIndex = 1; + num--; + } + for (int i = 0; i < num; i++) + { + i2p::crypto::HKDF (m_CurrentSymmKeyCK, nullptr, 0, "SymmetricRatchet", m_CurrentSymmKeyCK); + if (i < num - 1) + m_ItermediateSymmKeys.emplace (m_NextSymmKeyIndex + i, m_CurrentSymmKeyCK + 32); + } + m_NextSymmKeyIndex += num; + memcpy (key, m_CurrentSymmKeyCK + 32, 32); + } + else + { + auto it = m_ItermediateSymmKeys.find (index); + if (it != m_ItermediateSymmKeys.end ()) + { + memcpy (key, it->second, 32); + m_ItermediateSymmKeys.erase (it); + } + else + LogPrint (eLogError, "Garlic: Missing symmetric key for index ", index); + } + } + + void RatchetTagSet::DeleteSymmKey (int index) + { + m_ItermediateSymmKeys.erase (index); + } + + ReceiveRatchetTagSet::ReceiveRatchetTagSet (std::shared_ptr session, bool isNS): + m_Session (session), m_IsNS (isNS) + { + } + + ReceiveRatchetTagSet::~ReceiveRatchetTagSet () + { + if (m_IsNS && m_Session) + m_Session->CleanupReceiveNSRKeys (); + } + + void ReceiveRatchetTagSet::Expire () + { + if (!m_ExpirationTimestamp) + m_ExpirationTimestamp = i2p::util::GetSecondsSinceEpoch () + ECIESX25519_PREVIOUS_TAGSET_EXPIRATION_TIMEOUT; + } + + bool ReceiveRatchetTagSet::IsExpired (uint64_t ts) const + { + return m_ExpirationTimestamp && ts > m_ExpirationTimestamp; + } + + bool ReceiveRatchetTagSet::IsIndexExpired (int index) const + { + return index < m_TrimBehindIndex; + } + + bool ReceiveRatchetTagSet::HandleNextMessage (uint8_t * buf, size_t len, int index) + { + auto session = GetSession (); + if (!session) return false; + return session->HandleNextMessage (buf, len, shared_from_this (), index); + } + + bool ReceiveRatchetTagSet::IsSessionTerminated () const + { + return !m_Session || m_Session->IsTerminated (); + } + + + SymmetricKeyTagSet::SymmetricKeyTagSet (GarlicDestination * destination, const uint8_t * key): + ReceiveRatchetTagSet (nullptr), m_Destination (destination) + { + memcpy (m_Key, key, 32); + Expire (); + } + + bool SymmetricKeyTagSet::HandleNextMessage (uint8_t * buf, size_t len, int index) + { + if (len < 24) return false; + uint8_t nonce[12]; + memset (nonce, 0, 12); // n = 0 + size_t offset = 8; // first 8 bytes is reply tag used as AD + len -= 16; // poly1305 + if (!i2p::crypto::AEADChaCha20Poly1305 (buf + offset, len - offset, buf, 8, m_Key, nonce, buf + offset, len - offset, false)) // decrypt + { + LogPrint (eLogWarning, "Garlic: Symmetric key tagset AEAD decryption failed"); + return false; + } + // we assume 1 I2NP block with delivery type local + if (offset + 3 > len) + { + LogPrint (eLogWarning, "Garlic: Symmetric key tagset is too short ", len); + return false; + } + if (buf[offset] != eECIESx25519BlkGalicClove) + { + LogPrint (eLogWarning, "Garlic: Symmetric key tagset unexpected block ", (int)buf[offset]); + return false; + } + offset++; + auto size = bufbe16toh (buf + offset); + offset += 2; + if (offset + size > len) + { + LogPrint (eLogWarning, "Garlic: Symmetric key tagset block is too long ", size); + return false; + } + if (m_Destination) + m_Destination->HandleECIESx25519GarlicClove (buf + offset, size, nullptr); + return true; + } + + ECIESX25519AEADRatchetSession::ECIESX25519AEADRatchetSession (GarlicDestination * owner, bool attachLeaseSetNS): + GarlicRoutingSession (owner, true), m_RemoteStaticKeyType (0) + { + if (!attachLeaseSetNS) SetLeaseSetUpdateStatus (eLeaseSetUpToDate); + RAND_bytes (m_PaddingSizes, 32); m_NextPaddingSize = 0; + } + + ECIESX25519AEADRatchetSession::~ECIESX25519AEADRatchetSession () + { + } + + void ECIESX25519AEADRatchetSession::CreateNonce (uint64_t seqn, uint8_t * nonce) + { + memset (nonce, 0, 4); + htole64buf (nonce + 4, seqn); + } + + bool ECIESX25519AEADRatchetSession::GenerateEphemeralKeysAndEncode (uint8_t * buf) + { + bool ineligible = false; + while (!ineligible) + { + m_EphemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); + ineligible = m_EphemeralKeys->IsElligatorIneligible (); + if (!ineligible) // we haven't tried it yet + { + if (i2p::crypto::GetElligator ()->Encode (m_EphemeralKeys->GetPublicKey (), buf)) + return true; // success + // otherwise return back + m_EphemeralKeys->SetElligatorIneligible (); + i2p::transport::transports.ReuseX25519KeysPair (m_EphemeralKeys); + } + else + i2p::transport::transports.ReuseX25519KeysPair (m_EphemeralKeys); + } + // we still didn't find elligator eligible pair + for (int i = 0; i < 25; i++) + { + // create new + m_EphemeralKeys = std::make_shared(); + m_EphemeralKeys->GenerateKeys (); + if (i2p::crypto::GetElligator ()->Encode (m_EphemeralKeys->GetPublicKey (), buf)) + return true; // success + else + { + // let NTCP2 use it + m_EphemeralKeys->SetElligatorIneligible (); + i2p::transport::transports.ReuseX25519KeysPair (m_EphemeralKeys); + } + } + LogPrint (eLogError, "Garlic: Can't generate elligator eligible x25519 keys"); + return false; + } + + void ECIESX25519AEADRatchetSession::InitNewSessionTagset (std::shared_ptr tagsetNsr) const + { + uint8_t tagsetKey[32]; + i2p::crypto::HKDF (m_CK, nullptr, 0, "SessionReplyTags", tagsetKey, 32); // tagsetKey = HKDF(chainKey, ZEROLEN, "SessionReplyTags", 32) + // Session Tag Ratchet + tagsetNsr->DHInitialize (m_CK, tagsetKey); // tagset_nsr = DH_INITIALIZE(chainKey, tagsetKey) + tagsetNsr->NextSessionTagRatchet (); + } + + bool ECIESX25519AEADRatchetSession::MessageConfirmed (uint32_t msgID) + { + auto ret = GarlicRoutingSession::MessageConfirmed (msgID); // LeaseSet + if (m_AckRequestMsgID && m_AckRequestMsgID == msgID) + { + m_AckRequestMsgID = 0; + m_AckRequestNumAttempts = 0; + ret = true; + } + return ret; + } + + bool ECIESX25519AEADRatchetSession::CleanupUnconfirmedTags () + { + if (m_AckRequestMsgID && m_AckRequestNumAttempts > ECIESX25519_ACK_REQUEST_MAX_NUM_ATTEMPTS) + { + m_AckRequestMsgID = 0; + m_AckRequestNumAttempts = 0; + return true; + } + return false; + } + + void ECIESX25519AEADRatchetSession::CleanupReceiveNSRKeys () + { + m_EphemeralKeys = nullptr; +#if OPENSSL_PQ + m_PQKeys = nullptr; +#endif + } + + bool ECIESX25519AEADRatchetSession::HandleNewIncomingSession (const uint8_t * buf, size_t len) + { + if (!GetOwner ()) return false; + // we are Bob + // KDF1 + + if (!i2p::crypto::GetElligator ()->Decode (buf, m_Aepk)) + { + LogPrint (eLogError, "Garlic: Can't decode elligator"); + return false; + } + buf += 32; len -= 32; + + uint8_t sharedSecret[32]; + bool decrypted = false; + auto cryptoType = GetOwner ()->GetRatchetsHighestCryptoType (); +#if OPENSSL_PQ + if (cryptoType > i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) // we support post quantum + { + i2p::crypto::InitNoiseIKStateMLKEM (GetNoiseState (), cryptoType, GetOwner ()->GetEncryptionPublicKey (cryptoType)); // bpk + MixHash (m_Aepk, 32); // h = SHA256(h || aepk) + + if (GetOwner ()->Decrypt (m_Aepk, sharedSecret, cryptoType)) // x25519(bsk, aepk) + { + MixKey (sharedSecret); + + auto keyLen = i2p::crypto::GetMLKEMPublicKeyLen (cryptoType); + std::vector encapsKey(keyLen); + if (Decrypt (buf, encapsKey.data (), keyLen)) + { + decrypted = true; // encaps section has right hash + MixHash (buf, keyLen + 16); + buf += keyLen + 16; + len -= keyLen + 16; + + m_PQKeys = i2p::crypto::CreateMLKEMKeys (cryptoType); + m_PQKeys->SetPublicKey (encapsKey.data ()); + } + } + } +#endif + if (!decrypted) + { + if (cryptoType == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD || + GetOwner ()->SupportsEncryptionType (i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)) + { + cryptoType = i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD; + i2p::crypto::InitNoiseIKState (GetNoiseState (), GetOwner ()->GetEncryptionPublicKey (i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)); // bpk + MixHash (m_Aepk, 32); // h = SHA256(h || aepk) + + if (!GetOwner ()->Decrypt (m_Aepk, sharedSecret, i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)) // x25519(bsk, aepk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Alice ephemeral key"); + return false; + } + MixKey (sharedSecret); + } + else + { + LogPrint (eLogWarning, "Garlic: No supported encryption type"); + return false; + } + } + + // decrypt flags/static + uint8_t fs[32]; + if (!Decrypt (buf, fs, 32)) + { + LogPrint (eLogWarning, "Garlic: Flags/static section AEAD verification failed "); + return false; + } + MixHash (buf, 48); // h = SHA256(h || ciphertext) + buf += 48; len -= 48; // 32 data + 16 poly + + // KDF2 for payload + bool isStatic = !i2p::data::Tag<32> (fs).IsZero (); + if (isStatic) + { + // static key, fs is apk + SetRemoteStaticKey (cryptoType, fs); + if (!GetOwner ()->Decrypt (fs, sharedSecret, m_RemoteStaticKeyType)) // x25519(bsk, apk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Alice static key"); + return false; + } + MixKey (sharedSecret); + } + + // decrypt payload + std::vector payload (len - 16); // we must save original ciphertext + if (!Decrypt (buf, payload.data (), len - 16)) + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD verification failed"); + return false; + } + + m_State = eSessionStateNewSessionReceived; + if (isStatic) + { + MixHash (buf, len); // h = SHA256(h || ciphertext) + GetOwner ()->AddECIESx25519Session (m_RemoteStaticKey, shared_from_this ()); + } + HandlePayload (payload.data (), len - 16, nullptr, 0); + + return true; + } + + void ECIESX25519AEADRatchetSession::HandlePayload (const uint8_t * buf, size_t len, const std::shared_ptr& receiveTagset, int index) + { + size_t offset = 0; + while (offset < len) + { + uint8_t blk = buf[offset]; + offset++; + auto size = bufbe16toh (buf + offset); + offset += 2; + LogPrint (eLogDebug, "Garlic: Block type ", (int)blk, " of size ", size); + if (size > len) + { + LogPrint (eLogError, "Garlic: Unexpected block length ", size); + break; + } + switch (blk) + { + case eECIESx25519BlkGalicClove: + if (GetOwner ()) + GetOwner ()->HandleECIESx25519GarlicClove (buf + offset, size, this); + break; + case eECIESx25519BlkNextKey: + LogPrint (eLogDebug, "Garlic: Next key"); + if (receiveTagset) + HandleNextKey (buf + offset, size, receiveTagset); + else + LogPrint (eLogError, "Garlic: Unexpected next key block"); + break; + case eECIESx25519BlkAck: + { + LogPrint (eLogDebug, "Garlic: Ack"); + int numAcks = size >> 2; // /4 + auto offset1 = offset; + for (auto i = 0; i < numAcks; i++) + { + uint32_t tagsetid = bufbe16toh (buf + offset1); offset1 += 2; // tagsetid + uint16_t n = bufbe16toh (buf + offset1); offset1 += 2; // N + MessageConfirmed ((tagsetid << 16) + n); // msgid = (tagsetid << 16) + N + } + break; + } + case eECIESx25519BlkAckRequest: + { + LogPrint (eLogDebug, "Garlic: Ack request"); + if (receiveTagset) + m_AckRequests.push_back ({receiveTagset->GetTagSetID (), index}); + break; + } + case eECIESx25519BlkTermination: + LogPrint (eLogDebug, "Garlic: Termination"); + if (GetOwner ()) + GetOwner ()->RemoveECIESx25519Session (m_RemoteStaticKey); + if (receiveTagset) receiveTagset->Expire (); + break; + case eECIESx25519BlkDateTime: + LogPrint (eLogDebug, "Garlic: Datetime"); + break; + case eECIESx25519BlkOptions: + LogPrint (eLogDebug, "Garlic: Options"); + break; + case eECIESx25519BlkPadding: + LogPrint (eLogDebug, "Garlic: Padding"); + break; + default: + LogPrint (eLogWarning, "Garlic: Unknown block type ", (int)blk); + } + offset += size; + } + } + + void ECIESX25519AEADRatchetSession::HandleNextKey (const uint8_t * buf, size_t len, const std::shared_ptr& receiveTagset) + { + uint8_t flag = buf[0]; buf++; // flag + if (flag & ECIESX25519_NEXT_KEY_REVERSE_KEY_FLAG) + { + if (!m_SendForwardKey || !m_NextSendRatchet) return; + uint16_t keyID = bufbe16toh (buf); buf += 2; // keyID + if (((!m_NextSendRatchet->newKey || !m_NextSendRatchet->keyID) && keyID == m_NextSendRatchet->keyID) || + (m_NextSendRatchet->newKey && keyID == m_NextSendRatchet->keyID -1)) + { + if (flag & ECIESX25519_NEXT_KEY_KEY_PRESENT_FLAG) + memcpy (m_NextSendRatchet->remote, buf, 32); + uint8_t sharedSecret[32], tagsetKey[32]; + m_NextSendRatchet->key->Agree (m_NextSendRatchet->remote, sharedSecret); + i2p::crypto::HKDF (sharedSecret, nullptr, 0, "XDHRatchetTagSet", tagsetKey, 32); // tagsetKey = HKDF(sharedSecret, ZEROLEN, "XDHRatchetTagSet", 32) + auto newTagset = std::make_shared (); + newTagset->SetTagSetID (1 + m_NextSendRatchet->keyID + keyID); + newTagset->DHInitialize (m_SendTagset->GetNextRootKey (), tagsetKey); + newTagset->NextSessionTagRatchet (); + m_SendTagset = newTagset; + m_SendForwardKey = false; + LogPrint (eLogDebug, "Garlic: Next send tagset ", newTagset->GetTagSetID (), " created"); + } + else + LogPrint (eLogDebug, "Garlic: Unexpected next key ", keyID); + } + else + { + uint16_t keyID = bufbe16toh (buf); buf += 2; // keyID + bool newKey = flag & ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG; + if (!m_NextReceiveRatchet) + m_NextReceiveRatchet.reset (new DHRatchet ()); + else + { + if (keyID == m_NextReceiveRatchet->keyID && newKey == m_NextReceiveRatchet->newKey) + { + LogPrint (eLogDebug, "Garlic: Duplicate ", newKey ? "new" : "old", " key ", keyID, " received"); + return; + } + m_NextReceiveRatchet->keyID = keyID; + } + if (newKey) + { + m_NextReceiveRatchet->key = i2p::transport::transports.GetNextX25519KeysPair (); + m_NextReceiveRatchet->newKey = true; + } + else + m_NextReceiveRatchet->newKey = false; + auto tagsetID = m_NextReceiveRatchet->GetReceiveTagSetID (); + if (flag & ECIESX25519_NEXT_KEY_KEY_PRESENT_FLAG) + memcpy (m_NextReceiveRatchet->remote, buf, 32); + + uint8_t sharedSecret[32], tagsetKey[32]; + m_NextReceiveRatchet->key->Agree (m_NextReceiveRatchet->remote, sharedSecret); + i2p::crypto::HKDF (sharedSecret, nullptr, 0, "XDHRatchetTagSet", tagsetKey, 32); // tagsetKey = HKDF(sharedSecret, ZEROLEN, "XDHRatchetTagSet", 32) + auto newTagset = std::make_shared(shared_from_this ()); + newTagset->SetTagSetID (tagsetID); + newTagset->DHInitialize (receiveTagset->GetNextRootKey (), tagsetKey); + newTagset->NextSessionTagRatchet (); + GenerateMoreReceiveTags (newTagset, (GetOwner () && GetOwner ()->GetNumRatchetInboundTags () > 0) ? + GetOwner ()->GetNumRatchetInboundTags () : ECIESX25519_MAX_NUM_GENERATED_TAGS); + receiveTagset->Expire (); + + LogPrint (eLogDebug, "Garlic: Next receive tagset ", tagsetID, " created"); + m_SendReverseKey = true; + } + } + + void ECIESX25519AEADRatchetSession::NewNextSendRatchet () + { + if (m_NextSendRatchet) + { + if (!m_NextSendRatchet->newKey || !m_NextSendRatchet->keyID) + { + m_NextSendRatchet->keyID++; + m_NextSendRatchet->newKey = true; + } + else + m_NextSendRatchet->newKey = false; + } + else + m_NextSendRatchet.reset (new DHRatchet ()); + if (m_NextSendRatchet->newKey) + m_NextSendRatchet->key = i2p::transport::transports.GetNextX25519KeysPair (); + + m_SendForwardKey = true; + LogPrint (eLogDebug, "Garlic: New send ratchet ", m_NextSendRatchet->newKey ? "new" : "old", " key ", m_NextSendRatchet->keyID, " created"); + } + + bool ECIESX25519AEADRatchetSession::NewOutgoingSessionMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen, bool isStatic) + { + // we are Alice, bpk is m_RemoteStaticKey + size_t offset = 0; + if (!GenerateEphemeralKeysAndEncode (out + offset)) + { + LogPrint (eLogError, "Garlic: Can't encode elligator"); + return false; + } + offset += 32; + + // KDF1 +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + { + i2p::crypto::InitNoiseIKStateMLKEM (GetNoiseState (), m_RemoteStaticKeyType, m_RemoteStaticKey); // bpk + m_PQKeys = i2p::crypto::CreateMLKEMKeys (m_RemoteStaticKeyType); + m_PQKeys->GenerateKeys (); + } + else +#endif + i2p::crypto::InitNoiseIKState (GetNoiseState (), m_RemoteStaticKey); // bpk + MixHash (m_EphemeralKeys->GetPublicKey (), 32); // h = SHA256(h || aepk) + uint8_t sharedSecret[32]; + if (!m_EphemeralKeys->Agree (m_RemoteStaticKey, sharedSecret)) // x25519(aesk, bpk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Bob static key"); + return false; + } + MixKey (sharedSecret); +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + { + auto keyLen = i2p::crypto::GetMLKEMPublicKeyLen (m_RemoteStaticKeyType); + std::vector encapsKey(keyLen); + m_PQKeys->GetPublicKey (encapsKey.data ()); + // encrypt encapsKey + if (!Encrypt (encapsKey.data (), out + offset, keyLen)) + { + LogPrint (eLogWarning, "Garlic: ML-KEM encap_key section AEAD encryption failed "); + return false; + } + MixHash (out + offset, keyLen + 16); // h = SHA256(h || ciphertext) + offset += keyLen + 16; + } +#endif + // encrypt flags/static key section + const uint8_t * fs; + if (isStatic) + fs = GetOwner ()->GetEncryptionPublicKey (m_RemoteStaticKeyType); + else + { + memset (out + offset, 0, 32); // all zeros flags section + fs = out + offset; + } + if (!Encrypt (fs, out + offset, 32)) + { + LogPrint (eLogWarning, "Garlic: Flags/static section AEAD encryption failed "); + return false; + } + + MixHash (out + offset, 48); // h = SHA256(h || ciphertext) + offset += 48; + // KDF2 + if (isStatic) + { + GetOwner ()->Decrypt (m_RemoteStaticKey, sharedSecret, m_RemoteStaticKeyType); // x25519 (ask, bpk) + MixKey (sharedSecret); + } + // encrypt payload + if (!Encrypt (payload, out + offset, len)) + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD encryption failed"); + return false; + } + + m_State = eSessionStateNewSessionSent; + if (isStatic) + { + MixHash (out + offset, len + 16); // h = SHA256(h || ciphertext) + if (GetOwner ()) + { + auto tagsetNsr = std::make_shared(shared_from_this (), true); + InitNewSessionTagset (tagsetNsr); + tagsetNsr->Expire (); // let non-replied session expire + GenerateMoreReceiveTags (tagsetNsr, ECIESX25519_NSR_NUM_GENERATED_TAGS); + } + } + return true; + } + + bool ECIESX25519AEADRatchetSession::NewSessionReplyMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen) + { + // we are Bob + m_NSRSendTagset = std::make_shared(); + InitNewSessionTagset (m_NSRSendTagset); + uint64_t tag = m_NSRSendTagset->GetNextSessionTag (); + + size_t offset = 0; + memcpy (out + offset, &tag, 8); + offset += 8; + if (!GenerateEphemeralKeysAndEncode (out + offset)) // bepk + { + LogPrint (eLogError, "Garlic: Can't encode elligator"); + return false; + } + memcpy (m_NSREncodedKey, out + offset, 32); // for possible next NSR + memcpy (m_NSRH, m_H, 32); + offset += 32; + // KDF for Reply Key Section + MixHash ((const uint8_t *)&tag, 8); // h = SHA256(h || tag) + MixHash (m_EphemeralKeys->GetPublicKey (), 32); // h = SHA256(h || bepk) + uint8_t sharedSecret[32]; + if (!m_EphemeralKeys->Agree (m_Aepk, sharedSecret)) // sharedSecret = x25519(besk, aepk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Alice ephemeral key"); + return false; + } + MixKey (sharedSecret); +#if OPENSSL_PQ + if (m_PQKeys) + { + size_t cipherTextLen = i2p::crypto::GetMLKEMCipherTextLen (m_RemoteStaticKeyType); + std::vector kemCiphertext(cipherTextLen); + m_PQKeys->Encaps (kemCiphertext.data (), sharedSecret); + + if (!Encrypt (kemCiphertext.data (), out + offset, cipherTextLen)) + { + LogPrint (eLogWarning, "Garlic: NSR ML-KEM ciphertext section AEAD encryption failed"); + return false; + } + m_NSREncodedPQKey = std::make_unique > (cipherTextLen + 16); + memcpy (m_NSREncodedPQKey->data (), out + offset, cipherTextLen + 16); + MixHash (out + offset, cipherTextLen + 16); + MixKey (sharedSecret); + offset += cipherTextLen + 16; + } +#endif + if (!m_EphemeralKeys->Agree (m_RemoteStaticKey, sharedSecret)) // sharedSecret = x25519(besk, apk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Alice static key"); + return false; + } + MixKey (sharedSecret); + // calculate hash for zero length + if (!Encrypt (sharedSecret /* can be anything */, out + offset, 0)) // encrypt, ciphertext = ENCRYPT(k, n, ZEROLEN, ad) + { + LogPrint (eLogWarning, "Garlic: Reply key section AEAD encryption failed"); + return false; + } + MixHash (out + offset, 16); // h = SHA256(h || ciphertext) + offset += 16; + // KDF for payload + uint8_t keydata[64]; + i2p::crypto::HKDF (m_CK, nullptr, 0, "", keydata); // keydata = HKDF(chainKey, ZEROLEN, "", 64) + // k_ab = keydata[0:31], k_ba = keydata[32:63] + auto receiveTagset = std::make_shared(shared_from_this()); + receiveTagset->DHInitialize (m_CK, keydata); // tagset_ab = DH_INITIALIZE(chainKey, k_ab) + receiveTagset->NextSessionTagRatchet (); + m_SendTagset = std::make_shared(); + m_SendTagset->DHInitialize (m_CK, keydata + 32); // tagset_ba = DH_INITIALIZE(chainKey, k_ba) + m_SendTagset->NextSessionTagRatchet (); + GenerateMoreReceiveTags (receiveTagset, (GetOwner () && GetOwner ()->GetNumRatchetInboundTags () > 0) ? + GetOwner ()->GetNumRatchetInboundTags () : ECIESX25519_MIN_NUM_GENERATED_TAGS); + i2p::crypto::HKDF (keydata + 32, nullptr, 0, "AttachPayloadKDF", m_NSRKey, 32); // k = HKDF(k_ba, ZEROLEN, "AttachPayloadKDF", 32) + // encrypt payload + uint8_t nonce[12]; memset (nonce, 0, 12); // seqn = 0 + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len, m_H, 32, m_NSRKey, nonce, out + offset, len + 16, true)) // encrypt + { + LogPrint (eLogWarning, "Garlic: NSR payload section AEAD encryption failed"); + return false; + } + m_State = eSessionStateNewSessionReplySent; + m_SessionCreatedTimestamp = i2p::util::GetSecondsSinceEpoch (); + + return true; + } + + bool ECIESX25519AEADRatchetSession::NextNewSessionReplyMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen) + { + // we are Bob and sent NSR already + uint64_t tag = m_NSRSendTagset->GetNextSessionTag (); // next tag + memcpy (out, &tag, 8); + memcpy (out + 8, m_NSREncodedKey, 32); + // recalculate h with new tag + memcpy (m_H, m_NSRH, 32); + MixHash ((const uint8_t *)&tag, 8); // h = SHA256(h || tag) + MixHash (m_EphemeralKeys->GetPublicKey (), 32); // h = SHA256(h || bepk) + m_N = 0; + size_t offset = 40; +#if OPENSSL_PQ + if (m_PQKeys) + { + if (m_NSREncodedPQKey) + { + size_t cipherTextLen = i2p::crypto::GetMLKEMCipherTextLen (m_RemoteStaticKeyType); + memcpy (out + offset, m_NSREncodedPQKey->data (), cipherTextLen + 16); + MixHash (out + offset, cipherTextLen + 16); + offset += cipherTextLen + 16; + } + else + { + LogPrint (eLogWarning, "Garlic: No stored ML-KEM keys"); + return false; + } + } +#endif + if (!Encrypt (m_NSRH /* can be anything */, out + offset, 0)) // encrypt, ciphertext = ENCRYPT(k, n, ZEROLEN, ad) + { + LogPrint (eLogWarning, "Garlic: Reply key section AEAD encryption failed"); + return false; + } + MixHash (out + offset, 16); // h = SHA256(h || ciphertext) + // encrypt payload + uint8_t nonce[12]; memset (nonce, 0, 12); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len, m_H, 32, m_NSRKey, nonce, out + offset + 16, len + 16, true)) // encrypt + { + LogPrint (eLogWarning, "Garlic: Next NSR payload section AEAD encryption failed"); + return false; + } + return true; + } + + bool ECIESX25519AEADRatchetSession::HandleNewOutgoingSessionReply (uint8_t * buf, size_t len) + { + // we are Alice + LogPrint (eLogDebug, "Garlic: Reply received"); + const uint8_t * tag = buf; + buf += 8; len -= 8; // tag + uint8_t bepk[32]; // Bob's ephemeral key + if (!i2p::crypto::GetElligator ()->Decode (buf, bepk)) + { + LogPrint (eLogError, "Garlic: Can't decode elligator"); + return false; + } + buf += 32; len -= 32; + // KDF for Reply Key Section + i2p::util::SaveStateHelper s(GetNoiseState ()); // restore noise state on exit + MixHash (tag, 8); // h = SHA256(h || tag) + MixHash (bepk, 32); // h = SHA256(h || bepk) + uint8_t sharedSecret[32]; + if (!m_EphemeralKeys->Agree (bepk, sharedSecret)) // sharedSecret = x25519(aesk, bepk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Bob ephemeral key"); + return false; + } + MixKey (sharedSecret); +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + { + // decrypt kem_ciphertext section + size_t cipherTextLen = i2p::crypto::GetMLKEMCipherTextLen (m_RemoteStaticKeyType); + std::vector kemCiphertext(cipherTextLen); + if (!Decrypt (buf, kemCiphertext.data (), cipherTextLen)) + { + LogPrint (eLogWarning, "Garlic: Reply ML-KEM ciphertext section AEAD decryption failed"); + return false; + } + MixHash (buf, cipherTextLen + 16); + buf += cipherTextLen + 16; + len -= cipherTextLen + 16; + // decaps + m_PQKeys->Decaps (kemCiphertext.data (), sharedSecret); + MixKey (sharedSecret); + } +#endif + GetOwner ()->Decrypt (bepk, sharedSecret, m_RemoteStaticKeyType); // x25519 (ask, bepk) + MixKey (sharedSecret); + + // calculate hash for zero length + if (!Decrypt (buf, sharedSecret/* can be anything */, 0)) // decrypt, DECRYPT(k, n, ZEROLEN, ad) verification only + { + LogPrint (eLogWarning, "Garlic: Reply key section AEAD decryption failed"); + return false; + } + MixHash (buf, 16); // h = SHA256(h || ciphertext) + buf += 16; len -= 16; + // KDF for payload + uint8_t keydata[64]; + i2p::crypto::HKDF (m_CK, nullptr, 0, "", keydata); // keydata = HKDF(chainKey, ZEROLEN, "", 64) + if (m_State == eSessionStateNewSessionSent) + { + // only first time, then we keep using existing tagsets + // k_ab = keydata[0:31], k_ba = keydata[32:63] + m_SendTagset = std::make_shared(); + m_SendTagset->DHInitialize (m_CK, keydata); // tagset_ab = DH_INITIALIZE(chainKey, k_ab) + m_SendTagset->NextSessionTagRatchet (); + auto receiveTagset = std::make_shared(shared_from_this ()); + receiveTagset->DHInitialize (m_CK, keydata + 32); // tagset_ba = DH_INITIALIZE(chainKey, k_ba) + receiveTagset->NextSessionTagRatchet (); + GenerateMoreReceiveTags (receiveTagset, (GetOwner () && GetOwner ()->GetNumRatchetInboundTags () > 0) ? + GetOwner ()->GetNumRatchetInboundTags () : ECIESX25519_MIN_NUM_GENERATED_TAGS); + } + i2p::crypto::HKDF (keydata + 32, nullptr, 0, "AttachPayloadKDF", keydata, 32); // k = HKDF(k_ba, ZEROLEN, "AttachPayloadKDF", 32) + // decrypt payload + uint8_t nonce[12]; memset (nonce, 0, 12); // seqn = 0 + if (!i2p::crypto::AEADChaCha20Poly1305 (buf, len - 16, m_H, 32, keydata, nonce, buf, len - 16, false)) // decrypt + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD decryption failed"); + return false; + } + + if (m_State == eSessionStateNewSessionSent) + { + m_State = eSessionStateEstablished; + // don't delete m_EpehemralKey and m_PQKeys because delayd NSR's migth come + // done in CleanupReceiveNSRKeys called from NSR tagset destructor + m_SessionCreatedTimestamp = i2p::util::GetSecondsSinceEpoch (); + GetOwner ()->AddECIESx25519Session (m_RemoteStaticKey, shared_from_this ()); + } + HandlePayload (buf, len - 16, nullptr, 0); + + // we have received reply to NS with LeaseSet in it + SetLeaseSetUpdateStatus (eLeaseSetUpToDate); + SetLeaseSetUpdateMsgID (0); + + return true; + } + + bool ECIESX25519AEADRatchetSession::NewExistingSessionMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen) + { + auto owner = GetOwner (); + if (!owner) return false; + uint8_t nonce[12]; + auto index = m_SendTagset->GetNextIndex (); + CreateNonce (index, nonce); // tag's index + uint64_t tag = m_SendTagset->GetNextSessionTag (); + if (!tag) + { + LogPrint (eLogError, "Garlic: Can't create new ECIES-X25519-AEAD-Ratchet tag for send tagset"); + owner->RemoveECIESx25519Session (m_RemoteStaticKey); + return false; + } + memcpy (out, &tag, 8); + // ad = The session tag, 8 bytes + // ciphertext = ENCRYPT(k, n, payload, ad) + uint8_t key[32]; + m_SendTagset->GetSymmKey (index, key); + if (!owner->AEADChaCha20Poly1305Encrypt (payload, len, out, 8, key, nonce, out + 8, outLen - 8)) + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD encryption failed"); + return false; + } + if (index >= ECIESX25519_TAGSET_MAX_NUM_TAGS && !m_SendForwardKey) + NewNextSendRatchet (); + return true; + } + + bool ECIESX25519AEADRatchetSession::HandleExistingSessionMessage (uint8_t * buf, size_t len, + std::shared_ptr receiveTagset, int index) + { + uint8_t nonce[12]; + CreateNonce (index, nonce); // tag's index + len -= 8; // tag + uint8_t * payload = buf + 8; + uint8_t key[32]; + receiveTagset->GetSymmKey (index, key); + auto owner = GetOwner (); + if (!owner) return true; // drop message + + if (!owner->AEADChaCha20Poly1305Decrypt (payload, len - 16, buf, 8, key, nonce, payload, len - 16)) + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD decryption failed"); + return false; + } + HandlePayload (payload, len - 16, receiveTagset, index); + + int moreTags = 0; + if (owner->GetNumRatchetInboundTags () > 0) // override in settings? + { + if (receiveTagset->GetNextIndex () - index < owner->GetNumRatchetInboundTags ()/2) + moreTags = owner->GetNumRatchetInboundTags (); + index -= owner->GetNumRatchetInboundTags (); // trim behind + } + else + { + moreTags = (receiveTagset->GetTagSetID () > 0) ? ECIESX25519_MAX_NUM_GENERATED_TAGS : // for non first tagset + (ECIESX25519_MIN_NUM_GENERATED_TAGS + (index >> 1)); // N/2 + if (moreTags > ECIESX25519_MAX_NUM_GENERATED_TAGS) moreTags = ECIESX25519_MAX_NUM_GENERATED_TAGS; + moreTags -= (receiveTagset->GetNextIndex () - index); + index -= ECIESX25519_MAX_NUM_GENERATED_TAGS; // trim behind + } + if (moreTags > 0) + GenerateMoreReceiveTags (receiveTagset, moreTags); + if (index > 0) + receiveTagset->SetTrimBehind (index); + return true; + } + + bool ECIESX25519AEADRatchetSession::HandleNextMessage (uint8_t * buf, size_t len, + std::shared_ptr receiveTagset, int index) + { + m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); + switch (m_State) + { + case eSessionStateNewSessionReplySent: + m_State = eSessionStateEstablished; + m_NSRSendTagset = nullptr; + m_EphemeralKeys = nullptr; +#if OPENSSL_PQ + m_PQKeys = nullptr; + m_NSREncodedPQKey = nullptr; +#endif + [[fallthrough]]; + case eSessionStateEstablished: + if (m_SendReverseKey && receiveTagset->GetTagSetID () == m_NextReceiveRatchet->GetReceiveTagSetID ()) + m_SendReverseKey = false; // tag received on new tagset + if (receiveTagset->IsNS ()) + { + // our of sequence NSR + LogPrint (eLogDebug, "Garlic: Check for out of order NSR with index ", index); + if (receiveTagset->GetNextIndex () - index < ECIESX25519_NSR_NUM_GENERATED_TAGS/2) + GenerateMoreReceiveTags (receiveTagset, ECIESX25519_NSR_NUM_GENERATED_TAGS); + return HandleNewOutgoingSessionReply (buf, len); + } + else + return HandleExistingSessionMessage (buf, len, receiveTagset, index); + case eSessionStateNew: + return HandleNewIncomingSession (buf, len); + case eSessionStateNewSessionSent: + return HandleNewOutgoingSessionReply (buf, len); + default: + return false; + } + return true; + } + + std::shared_ptr ECIESX25519AEADRatchetSession::WrapSingleMessage (std::shared_ptr msg) + { + uint8_t * payload = GetOwner ()->GetPayloadBuffer (); + if (!payload) return nullptr; + size_t len = CreatePayload (msg, m_State != eSessionStateEstablished, payload); + if (!len) return nullptr; +#if OPENSSL_PQ + auto m = NewI2NPMessage (len + (m_State == eSessionStateEstablished ? 28 : + i2p::crypto::GetMLKEMPublicKeyLen (m_RemoteStaticKeyType) + 116)); +#else + auto m = NewI2NPMessage (len + 100); // 96 + 4 +#endif + m->Align (12); // in order to get buf aligned to 16 (12 + 4) + uint8_t * buf = m->GetPayload () + 4; // 4 bytes for length + + switch (m_State) + { + case eSessionStateEstablished: + if (!NewExistingSessionMessage (payload, len, buf, m->maxLen)) + return nullptr; + len += 24; + break; + case eSessionStateNew: + if (!NewOutgoingSessionMessage (payload, len, buf, m->maxLen)) + return nullptr; + len += 96; +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + len += i2p::crypto::GetMLKEMPublicKeyLen (m_RemoteStaticKeyType) + 16; +#endif + break; + case eSessionStateNewSessionReceived: + if (!NewSessionReplyMessage (payload, len, buf, m->maxLen)) + return nullptr; + len += 72; +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + len += i2p::crypto::GetMLKEMCipherTextLen (m_RemoteStaticKeyType) + 16; +#endif + break; + case eSessionStateNewSessionReplySent: + if (!NextNewSessionReplyMessage (payload, len, buf, m->maxLen)) + return nullptr; + len += 72; +#if OPENSSL_PQ + if (m_RemoteStaticKeyType >= i2p::data::CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD) + len += i2p::crypto::GetMLKEMCipherTextLen (m_RemoteStaticKeyType) + 16; +#endif + break; + case eSessionStateOneTime: + if (!NewOutgoingSessionMessage (payload, len, buf, m->maxLen, false)) + return nullptr; + len += 96; + break; + default: + return nullptr; + } + + htobe32buf (m->GetPayload (), len); + m->len += len + 4; + m->FillI2NPMessageHeader (eI2NPGarlic); + return m; + } + + std::shared_ptr ECIESX25519AEADRatchetSession::WrapOneTimeMessage (std::shared_ptr msg) + { + m_State = eSessionStateOneTime; + return WrapSingleMessage (msg); + } + + size_t ECIESX25519AEADRatchetSession::CreatePayload (std::shared_ptr msg, bool first, uint8_t * payload) + { + uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); + size_t payloadLen = 0; + bool sendAckRequest = false; + if (first) payloadLen += 7;// datatime + if (msg) + { + payloadLen += msg->GetPayloadLength () + 13; + if (m_Destination) payloadLen += 32; + } + if (GetLeaseSetUpdateStatus () == eLeaseSetSubmitted && ts > GetLeaseSetSubmissionTime () + LEASESET_CONFIRMATION_TIMEOUT) + { + // resubmit non-confirmed LeaseSet + SetLeaseSetUpdateStatus (eLeaseSetUpdated); + SetSharedRoutingPath (nullptr); // invalidate path since leaseset was not confirmed + } + auto leaseSet = (GetLeaseSetUpdateStatus () == eLeaseSetUpdated) ? GetOwner ()->GetLeaseSet () : nullptr; + if (leaseSet) + { + payloadLen += leaseSet->GetBufferLen () + DATABASE_STORE_HEADER_SIZE + 13; + if (!first) + { + // ack request for LeaseSet + m_AckRequestMsgID = m_SendTagset->GetMsgID (); + sendAckRequest = true; + // update LeaseSet status + SetLeaseSetUpdateStatus (eLeaseSetSubmitted); + SetLeaseSetUpdateMsgID (m_AckRequestMsgID); + SetLeaseSetSubmissionTime (ts); + } + } + if (!sendAckRequest && !first && + ((!m_AckRequestMsgID && ts > m_LastAckRequestSendTime + m_AckRequestInterval) || // regular request + (m_AckRequestMsgID && ts > m_LastAckRequestSendTime + LEASESET_CONFIRMATION_TIMEOUT))) // previous request failed. try again + { + // not LeaseSet + m_AckRequestMsgID = m_SendTagset->GetMsgID (); + if (m_AckRequestMsgID) + { + m_AckRequestNumAttempts++; + sendAckRequest = true; + } + } + if (sendAckRequest) payloadLen += 4; + if (m_AckRequests.size () > 0) + payloadLen += m_AckRequests.size ()*4 + 3; + if (m_SendReverseKey) + { + payloadLen += 6; + if (m_NextReceiveRatchet->newKey) payloadLen += 32; + } + if (m_SendForwardKey) + { + payloadLen += 6; + if (m_NextSendRatchet->newKey) payloadLen += 32; + } + uint8_t paddingSize = 0; + if (payloadLen || ts > m_LastSentTimestamp + ECIESX25519_SEND_INACTIVITY_TIMEOUT) + { + int delta = (int)ECIESX25519_OPTIMAL_PAYLOAD_SIZE - (int)payloadLen; + if (delta < 0 || delta > 3) // don't create padding if we are close to optimal size + { + paddingSize = m_PaddingSizes[m_NextPaddingSize++] & 0x0F; // 0 - 15 + if (m_NextPaddingSize >= 32) + { + RAND_bytes (m_PaddingSizes, 32); + m_NextPaddingSize = 0; + } + if (delta > 3) + { + delta -= 3; + if (paddingSize >= delta) paddingSize %= delta; + } + paddingSize++; + payloadLen += paddingSize + 3; + } + } + if (payloadLen) + { + if (payloadLen > I2NP_MAX_MESSAGE_SIZE) + { + LogPrint (eLogError, "Garlic: Payload length ", payloadLen, " is too long"); + return 0; + } + m_LastSentTimestamp = ts; + size_t offset = 0; + // DateTime + if (first) + { + payload[offset] = eECIESx25519BlkDateTime; offset++; + htobe16buf (payload + offset, 4); offset += 2; + htobe32buf (payload + offset, ts/1000); offset += 4; // in seconds + } + // LeaseSet + if (leaseSet) + offset += CreateLeaseSetClove (leaseSet, ts, payload + offset, payloadLen - offset); + // ack request + if (sendAckRequest) + { + payload[offset] = eECIESx25519BlkAckRequest; offset++; + htobe16buf (payload + offset, 1); offset += 2; + payload[offset] = 0; offset++; // flags + m_LastAckRequestSendTime = ts; + } + // msg + if (msg) + offset += CreateGarlicClove (msg, payload + offset, payloadLen - offset); + // ack + if (m_AckRequests.size () > 0) + { + payload[offset] = eECIESx25519BlkAck; offset++; + htobe16buf (payload + offset, m_AckRequests.size () * 4); offset += 2; + for (auto& it: m_AckRequests) + { + htobe16buf (payload + offset, it.first); offset += 2; + htobe16buf (payload + offset, it.second); offset += 2; + } + m_AckRequests.clear (); + } + // next keys + if (m_SendReverseKey) + { + payload[offset] = eECIESx25519BlkNextKey; offset++; + htobe16buf (payload + offset, m_NextReceiveRatchet->newKey ? 35 : 3); offset += 2; + payload[offset] = ECIESX25519_NEXT_KEY_REVERSE_KEY_FLAG; + int keyID = m_NextReceiveRatchet->keyID - 1; + if (m_NextReceiveRatchet->newKey) + { + payload[offset] |= ECIESX25519_NEXT_KEY_KEY_PRESENT_FLAG; + keyID++; + } + offset++; // flag + htobe16buf (payload + offset, keyID); offset += 2; // keyid + if (m_NextReceiveRatchet->newKey) + { + memcpy (payload + offset, m_NextReceiveRatchet->key->GetPublicKey (), 32); + offset += 32; // public key + } + } + if (m_SendForwardKey) + { + payload[offset] = eECIESx25519BlkNextKey; offset++; + htobe16buf (payload + offset, m_NextSendRatchet->newKey ? 35 : 3); offset += 2; + payload[offset] = m_NextSendRatchet->newKey ? ECIESX25519_NEXT_KEY_KEY_PRESENT_FLAG : ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG; + if (!m_NextSendRatchet->keyID) payload[offset] |= ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG; // for first key only + offset++; // flag + htobe16buf (payload + offset, m_NextSendRatchet->keyID); offset += 2; // keyid + if (m_NextSendRatchet->newKey) + { + memcpy (payload + offset, m_NextSendRatchet->key->GetPublicKey (), 32); + offset += 32; // public key + } + } + // padding + if (paddingSize) + { + payload[offset] = eECIESx25519BlkPadding; offset++; + htobe16buf (payload + offset, paddingSize); offset += 2; + memset (payload + offset, 0, paddingSize); offset += paddingSize; + } + } + return payloadLen; + } + + size_t ECIESX25519AEADRatchetSession::CreateGarlicClove (std::shared_ptr msg, uint8_t * buf, size_t len) + { + if (!msg) return 0; + uint16_t cloveSize = msg->GetPayloadLength () + 9 + 1; + if (m_Destination) cloveSize += 32; + if ((int)len < cloveSize + 3) return 0; + buf[0] = eECIESx25519BlkGalicClove; // clove type + htobe16buf (buf + 1, cloveSize); // size + buf += 3; + if (m_Destination) + { + *buf = (eGarlicDeliveryTypeDestination << 5); + memcpy (buf + 1, *m_Destination, 32); buf += 32; + } + else + *buf = 0; + buf++; // flag and delivery instructions + *buf = msg->GetTypeID (); // I2NP msg type + htobe32buf (buf + 1, msg->GetMsgID ()); // msgID + htobe32buf (buf + 5, msg->GetExpiration () / 1000); // expiration in seconds + memcpy (buf + 9, msg->GetPayload (), msg->GetPayloadLength ()); + return cloveSize + 3; + } + + size_t ECIESX25519AEADRatchetSession::CreateLeaseSetClove (std::shared_ptr ls, uint64_t ts, uint8_t * buf, size_t len) + { + if (!ls || ls->GetStoreType () != i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2) + { + LogPrint (eLogError, "Garlic: Incorrect LeasetSet type to send"); + return 0; + } + uint16_t cloveSize = 1 + 9 + DATABASE_STORE_HEADER_SIZE + ls->GetBufferLen (); // to local + if ((int)len < cloveSize + 3) return 0; + buf[0] = eECIESx25519BlkGalicClove; // clove type + htobe16buf (buf + 1, cloveSize); // size + buf += 3; + *buf = 0; buf++; // flag and delivery instructions + *buf = eI2NPDatabaseStore; buf++; // I2NP msg type + RAND_bytes (buf, 4); buf += 4; // msgID + htobe32buf (buf, (ts + I2NP_MESSAGE_EXPIRATION_TIMEOUT)/1000); buf += 4; // expiration + // payload + memcpy (buf + DATABASE_STORE_KEY_OFFSET, ls->GetStoreHash (), 32); + buf[DATABASE_STORE_TYPE_OFFSET] = i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2; + memset (buf + DATABASE_STORE_REPLY_TOKEN_OFFSET, 0, 4); // replyToken = 0 + buf += DATABASE_STORE_HEADER_SIZE; + memcpy (buf, ls->GetBuffer (), ls->GetBufferLen ()); + + return cloveSize + 3; + } + + void ECIESX25519AEADRatchetSession::GenerateMoreReceiveTags (std::shared_ptr receiveTagset, int numTags) + { + if (GetOwner ()) + { + for (int i = 0; i < numTags; i++) + { + auto tag = GetOwner ()->AddECIESx25519SessionNextTag (receiveTagset); + if (!tag) + { + LogPrint (eLogError, "Garlic: Can't create new ECIES-X25519-AEAD-Ratchet tag for receive tagset"); + break; + } + } + } + } + + bool ECIESX25519AEADRatchetSession::CheckExpired (uint64_t ts) + { + CleanupUnconfirmedLeaseSet (ts); + if (!m_Destination && ts > m_LastActivityTimestamp + ECIESX25519_SESSION_CREATE_TIMEOUT) return true; // m_LastActivityTimestamp is NS receive time + if (m_State != eSessionStateEstablished && m_SessionCreatedTimestamp && ts > m_SessionCreatedTimestamp + ECIESX25519_SESSION_ESTABLISH_TIMEOUT) return true; + return ts > m_LastActivityTimestamp + ECIESX25519_RECEIVE_EXPIRATION_TIMEOUT && // seconds + ts*1000 > m_LastSentTimestamp + ECIESX25519_SEND_EXPIRATION_TIMEOUT*1000; // milliseconds + } + + RouterIncomingRatchetSession::RouterIncomingRatchetSession (const i2p::crypto::NoiseSymmetricState& initState): + ECIESX25519AEADRatchetSession (&i2p::context, false) + { + SetLeaseSetUpdateStatus (eLeaseSetDoNotSend); + SetNoiseState (initState); + } + + bool RouterIncomingRatchetSession::HandleNextMessage (const uint8_t * buf, size_t len) + { + if (!GetOwner ()) return false; + m_CurrentNoiseState = GetNoiseState (); + // we are Bob + m_CurrentNoiseState.MixHash (buf, 32); + uint8_t sharedSecret[32]; + if (!GetOwner ()->Decrypt (buf, sharedSecret, i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)) // x25519(bsk, aepk) + { + LogPrint (eLogWarning, "Garlic: Incorrect N ephemeral public key"); + return false; + } + m_CurrentNoiseState.MixKey (sharedSecret); + buf += 32; len -= 32; + uint8_t nonce[12]; + CreateNonce (0, nonce); + std::vector payload (len - 16); + if (!i2p::crypto::AEADChaCha20Poly1305 (buf, len - 16, m_CurrentNoiseState.m_H, 32, + m_CurrentNoiseState.m_CK + 32, nonce, payload.data (), len - 16, false)) // decrypt + { + LogPrint (eLogWarning, "Garlic: Payload for router AEAD verification failed"); + return false; + } + HandlePayload (payload.data (), len - 16, nullptr, 0); + return true; + } + + static size_t CreateGarlicPayload (std::shared_ptr msg, uint8_t * payload, + bool datetime, size_t optimalSize) + { + size_t len = 0; + if (datetime) + { + // DateTime + payload[0] = eECIESx25519BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, i2p::util::GetSecondsSinceEpoch ()); + len = 7; + } + // I2NP + payload += len; + uint16_t cloveSize = msg->GetPayloadLength () + 10; + payload[0] = eECIESx25519BlkGalicClove; // clove type + htobe16buf (payload + 1, cloveSize); // size + payload += 3; + payload[0] = 0; // flag and delivery instructions + payload[1] = msg->GetTypeID (); // I2NP msg type + htobe32buf (payload + 2, msg->GetMsgID ()); // msgID + htobe32buf (payload + 6, msg->GetExpiration () / 1000); // expiration in seconds + memcpy (payload + 10, msg->GetPayload (), msg->GetPayloadLength ()); + len += cloveSize + 3; + payload += cloveSize; + // padding + int delta = (int)optimalSize - (int)len; + if (delta < 0 || delta > 3) // don't create padding if we are close to optimal size + { + uint8_t paddingSize = rand () & 0x0F; // 0 - 15 + if (delta > 3) + { + delta -= 3; + if (paddingSize > delta) paddingSize %= delta; + } + payload[0] = eECIESx25519BlkPadding; + htobe16buf (payload + 1, paddingSize); + if (paddingSize) memset (payload + 3, 0, paddingSize); + len += paddingSize + 3; + } + return len; + } + + std::shared_ptr WrapECIESX25519Message (std::shared_ptr msg, const uint8_t * key, uint64_t tag) + { + auto m = NewI2NPMessage ((msg ? msg->GetPayloadLength () : 0) + 128); + m->Align (12); // in order to get buf aligned to 16 (12 + 4) + uint8_t * buf = m->GetPayload () + 4; // 4 bytes for length + size_t offset = 0; + memcpy (buf + offset, &tag, 8); offset += 8; + auto payload = buf + offset; + size_t len = CreateGarlicPayload (msg, payload, false, 956); // 1003 - 8 tag - 16 Poly1305 hash - 16 I2NP header - 4 garlic length - 3 local tunnel delivery + uint8_t nonce[12]; + memset (nonce, 0, 12); // n = 0 + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len, buf, 8, key, nonce, payload, len + 16, true)) // encrypt + { + LogPrint (eLogWarning, "Garlic: Payload section AEAD encryption failed"); + return nullptr; + } + offset += len + 16; + htobe32buf (m->GetPayload (), offset); + m->len += offset + 4; + m->FillI2NPMessageHeader (eI2NPGarlic); + if (msg->onDrop) + { + // move onDrop to the wrapping I2NP messages + m->onDrop = msg->onDrop; + msg->onDrop = nullptr; + } + return m; + } + + std::shared_ptr WrapECIESX25519MessageForRouter (std::shared_ptr msg, const uint8_t * routerPublicKey) + { + // Noise_N, we are Alice, routerPublicKey is Bob's + i2p::crypto::NoiseSymmetricState noiseState; + i2p::crypto::InitNoiseNState (noiseState, routerPublicKey); + auto m = NewI2NPMessage ((msg ? msg->GetPayloadLength () : 0) + 128); + m->Align (12); // in order to get buf aligned to 16 (12 + 4) + uint8_t * buf = m->GetPayload () + 4; // 4 bytes for length + size_t offset = 0; + auto ephemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); + memcpy (buf + offset, ephemeralKeys->GetPublicKey (), 32); + noiseState.MixHash (buf + offset, 32); // h = SHA256(h || aepk) + offset += 32; + uint8_t sharedSecret[32]; + if (!ephemeralKeys->Agree (routerPublicKey, sharedSecret)) // x25519(aesk, bpk) + { + LogPrint (eLogWarning, "Garlic: Incorrect Bob static key"); + return nullptr; + } + noiseState.MixKey (sharedSecret); + auto payload = buf + offset; + size_t len = CreateGarlicPayload (msg, payload, true, 900); // 1003 - 32 eph key - 16 Poly1305 hash - 16 I2NP header - 4 garlic length - 35 router tunnel delivery + uint8_t nonce[12]; + memset (nonce, 0, 12); + // encrypt payload + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len, noiseState.m_H, 32, noiseState.m_CK + 32, nonce, payload, len + 16, true)) // encrypt + { + LogPrint (eLogWarning, "Garlic: Payload for router AEAD encryption failed"); + return nullptr; + } + offset += len + 16; + htobe32buf (m->GetPayload (), offset); + m->len += offset + 4; + m->FillI2NPMessageHeader (eI2NPGarlic); + if (msg->onDrop) + { + // move onDrop to the wrapping I2NP messages + m->onDrop = msg->onDrop; + msg->onDrop = nullptr; + } + return m; + } +} +} diff --git a/libi2pd/ECIESX25519AEADRatchetSession.h b/libi2pd/ECIESX25519AEADRatchetSession.h new file mode 100644 index 00000000..fd9cc45d --- /dev/null +++ b/libi2pd/ECIESX25519AEADRatchetSession.h @@ -0,0 +1,282 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef ECIES_X25519_AEAD_RATCHET_SESSION_H__ +#define ECIES_X25519_AEAD_RATCHET_SESSION_H__ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "Identity.h" +#include "Crypto.h" +#include "PostQuantum.h" +#include "Garlic.h" +#include "Tag.h" + +namespace i2p +{ +namespace garlic +{ + const int ECIESX25519_RESTART_TIMEOUT = 120; // number of second since session creation we can restart session after + const int ECIESX25519_INACTIVITY_TIMEOUT = 90; // number of seconds we receive nothing and should restart if we can + const int ECIESX25519_SEND_INACTIVITY_TIMEOUT = 5000; // number of milliseconds we can send empty(pyaload only) packet after + const int ECIESX25519_SEND_EXPIRATION_TIMEOUT = 480; // in seconds + const int ECIESX25519_RECEIVE_EXPIRATION_TIMEOUT = 600; // in seconds + const int ECIESX25519_SESSION_CREATE_TIMEOUT = 3; // in seconds, NSR must be send after NS received + const int ECIESX25519_SESSION_ESTABLISH_TIMEOUT = 15; // in seconds + const int ECIESX25519_PREVIOUS_TAGSET_EXPIRATION_TIMEOUT = 180; // in seconds + const int ECIESX25519_DEFAULT_ACK_REQUEST_INTERVAL = 33000; // in milliseconds + const int ECIESX25519_ACK_REQUEST_MAX_NUM_ATTEMPTS = 3; + const int ECIESX25519_TAGSET_MAX_NUM_TAGS = 8192; // number of tags we request new tagset after + const int ECIESX25519_MIN_NUM_GENERATED_TAGS = 24; + const int ECIESX25519_MAX_NUM_GENERATED_TAGS = 800; + const int ECIESX25519_NSR_NUM_GENERATED_TAGS = 12; + + const size_t ECIESX25519_OPTIMAL_PAYLOAD_SIZE = 1912; // 1912 = 1956 /* to fit 2 tunnel messages */ + // - 16 /* I2NP header */ - 16 /* poly hash */ - 8 /* tag */ - 4 /* garlic length */ + + class RatchetTagSet + { + public: + + RatchetTagSet () {}; + virtual ~RatchetTagSet () {}; + + void DHInitialize (const uint8_t * rootKey, const uint8_t * k); + void NextSessionTagRatchet (); + uint64_t GetNextSessionTag (); + const uint8_t * GetNextRootKey () const { return m_NextRootKey; }; + int GetNextIndex () const { return m_NextIndex; }; + void GetSymmKey (int index, uint8_t * key); + void DeleteSymmKey (int index); + + int GetTagSetID () const { return m_TagSetID; }; + void SetTagSetID (int tagsetID) { m_TagSetID = tagsetID; }; + + uint32_t GetMsgID () const { return (m_TagSetID << 16) + m_NextIndex; }; // (tagsetid << 16) + N + + private: + + i2p::data::Tag<64> m_SessionTagKeyData; + uint8_t m_SessTagConstant[32], m_SymmKeyCK[32], m_CurrentSymmKeyCK[64], m_NextRootKey[32]; + int m_NextIndex, m_NextSymmKeyIndex; + std::unordered_map > m_ItermediateSymmKeys; + + int m_TagSetID = 0; + }; + + class ECIESX25519AEADRatchetSession; + class ReceiveRatchetTagSet: public RatchetTagSet, + public std::enable_shared_from_this + { + public: + + ReceiveRatchetTagSet (std::shared_ptr session, bool isNS = false); + ~ReceiveRatchetTagSet () override; + + bool IsNS () const { return m_IsNS; }; + std::shared_ptr GetSession () { return m_Session; }; + void SetTrimBehind (int index) { if (index > m_TrimBehindIndex) m_TrimBehindIndex = index; }; + int GetTrimBehind () const { return m_TrimBehindIndex; }; + + void Expire (); + bool IsExpired (uint64_t ts) const; + + virtual bool IsIndexExpired (int index) const; + virtual bool HandleNextMessage (uint8_t * buf, size_t len, int index); + virtual bool IsSessionTerminated () const; + + private: + + int m_TrimBehindIndex = 0; + std::shared_ptr m_Session; + bool m_IsNS; + uint64_t m_ExpirationTimestamp = 0; + }; + + class SymmetricKeyTagSet: public ReceiveRatchetTagSet + { + public: + + SymmetricKeyTagSet (GarlicDestination * destination, const uint8_t * key); + + bool IsIndexExpired (int index) const override { return false; }; + bool HandleNextMessage (uint8_t * buf, size_t len, int index) override; + bool IsSessionTerminated () const override { return false; } + + private: + + GarlicDestination * m_Destination; + uint8_t m_Key[32]; + }; + + enum ECIESx25519BlockType + { + eECIESx25519BlkDateTime = 0, + eECIESx25519BlkSessionID = 1, + eECIESx25519BlkTermination = 4, + eECIESx25519BlkOptions = 5, + eECIESx25519BlkNextKey = 7, + eECIESx25519BlkAck = 8, + eECIESx25519BlkAckRequest = 9, + eECIESx25519BlkGalicClove = 11, + eECIESx25519BlkPadding = 254 + }; + + const uint8_t ECIESX25519_NEXT_KEY_KEY_PRESENT_FLAG = 0x01; + const uint8_t ECIESX25519_NEXT_KEY_REVERSE_KEY_FLAG = 0x02; + const uint8_t ECIESX25519_NEXT_KEY_REQUEST_REVERSE_KEY_FLAG = 0x04; + + class ECIESX25519AEADRatchetSession: public GarlicRoutingSession, + private i2p::crypto::NoiseSymmetricState, + public std::enable_shared_from_this + { + enum SessionState + { + eSessionStateNew = 0, + eSessionStateNewSessionReceived, + eSessionStateNewSessionSent, + eSessionStateNewSessionReplySent, + eSessionStateEstablished, + eSessionStateOneTime + }; + + struct DHRatchet + { + int keyID = 0; + std::shared_ptr key; + uint8_t remote[32]; // last remote public key + bool newKey = true; + int GetReceiveTagSetID () const { return newKey ? (2*keyID + 1) : 2*keyID; } + }; + + public: + + ECIESX25519AEADRatchetSession (GarlicDestination * owner, bool attachLeaseSetNS); + ~ECIESX25519AEADRatchetSession (); + + bool HandleNextMessage (uint8_t * buf, size_t len, std::shared_ptr receiveTagset, int index = 0); + std::shared_ptr WrapSingleMessage (std::shared_ptr msg) override; + std::shared_ptr WrapOneTimeMessage (std::shared_ptr msg); + + const uint8_t * GetRemoteStaticKey () const { return m_RemoteStaticKey; } + i2p::data::CryptoKeyType GetRemoteStaticKeyType () const { return m_RemoteStaticKeyType; } + void SetRemoteStaticKey (i2p::data::CryptoKeyType keyType, const uint8_t * key) + { + m_RemoteStaticKeyType = keyType; + memcpy (m_RemoteStaticKey, key, 32); + } + void Terminate () { m_IsTerminated = true; } + void SetDestination (const i2p::data::IdentHash& dest) + { + if (!m_Destination) m_Destination.reset (new i2p::data::IdentHash (dest)); + } + bool CheckExpired (uint64_t ts); // true is expired + bool CanBeRestarted (uint64_t ts) const { return ts > m_SessionCreatedTimestamp + ECIESX25519_RESTART_TIMEOUT; } + bool IsInactive (uint64_t ts) const { return ts > m_LastActivityTimestamp + ECIESX25519_INACTIVITY_TIMEOUT && CanBeRestarted (ts); } + void CleanupReceiveNSRKeys (); // called from ReceiveRatchetTagSet at Alice's side + + bool IsRatchets () const override { return true; }; + bool IsReadyToSend () const override { return m_State != eSessionStateNewSessionSent; }; + bool IsTerminated () const override { return m_IsTerminated; } + uint64_t GetLastActivityTimestamp () const override { return m_LastActivityTimestamp; }; + void SetAckRequestInterval (int interval) override { m_AckRequestInterval = interval; }; + bool CleanupUnconfirmedTags () override; // return true if unaswered Ack requests, called from I2CP + + protected: + + i2p::crypto::NoiseSymmetricState& GetNoiseState () { return *this; }; + void SetNoiseState (const i2p::crypto::NoiseSymmetricState& state) { GetNoiseState () = state; }; + void CreateNonce (uint64_t seqn, uint8_t * nonce); + void HandlePayload (const uint8_t * buf, size_t len, const std::shared_ptr& receiveTagset, int index); + bool MessageConfirmed (uint32_t msgID) override; + + private: + + bool GenerateEphemeralKeysAndEncode (uint8_t * buf); // buf is 32 bytes + void InitNewSessionTagset (std::shared_ptr tagsetNsr) const; + + bool HandleNewIncomingSession (const uint8_t * buf, size_t len); + bool HandleNewOutgoingSessionReply (uint8_t * buf, size_t len); + bool HandleExistingSessionMessage (uint8_t * buf, size_t len, std::shared_ptr receiveTagset, int index); + void HandleNextKey (const uint8_t * buf, size_t len, const std::shared_ptr& receiveTagset); + + bool NewOutgoingSessionMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen, bool isStatic = true); + bool NewSessionReplyMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen); + bool NextNewSessionReplyMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen); + bool NewExistingSessionMessage (const uint8_t * payload, size_t len, uint8_t * out, size_t outLen); + + size_t CreatePayload (std::shared_ptr msg, bool first, uint8_t * payload); + size_t CreateGarlicClove (std::shared_ptr msg, uint8_t * buf, size_t len); + size_t CreateLeaseSetClove (std::shared_ptr ls, uint64_t ts, uint8_t * buf, size_t len); + + void GenerateMoreReceiveTags (std::shared_ptr receiveTagset, int numTags); + void NewNextSendRatchet (); + + private: + + i2p::data::CryptoKeyType m_RemoteStaticKeyType; + uint8_t m_RemoteStaticKey[32]; + uint8_t m_Aepk[32]; // Alice's ephemeral keys, for incoming only + uint8_t m_NSREncodedKey[32], m_NSRH[32], m_NSRKey[32]; // new session reply, for incoming only + std::shared_ptr m_EphemeralKeys; +#if OPENSSL_PQ + std::unique_ptr m_PQKeys; + std::unique_ptr > m_NSREncodedPQKey; +#endif + SessionState m_State = eSessionStateNew; + uint64_t m_SessionCreatedTimestamp = 0, m_LastActivityTimestamp = 0, // incoming (in seconds) + m_LastSentTimestamp = 0; // in milliseconds + std::shared_ptr m_SendTagset, m_NSRSendTagset; + std::unique_ptr m_Destination;// must be set for NS if outgoing and NSR if incoming + std::list > m_AckRequests; // incoming (tagsetid, index) + bool m_SendReverseKey = false, m_SendForwardKey = false, m_IsTerminated = false; + std::unique_ptr m_NextReceiveRatchet, m_NextSendRatchet; + uint8_t m_PaddingSizes[32], m_NextPaddingSize; + + uint64_t m_LastAckRequestSendTime = 0; // milliseconds + uint32_t m_AckRequestMsgID = 0; + int m_AckRequestNumAttempts = 0; + int m_AckRequestInterval = ECIESX25519_DEFAULT_ACK_REQUEST_INTERVAL; // milliseconds + + public: + + // for HTTP only + int GetState () const { return (int)m_State; } + i2p::data::IdentHash GetDestination () const + { + return m_Destination ? *m_Destination : i2p::data::IdentHash (); + } + }; + + // single session for all incoming messages + class RouterIncomingRatchetSession: public ECIESX25519AEADRatchetSession + { + public: + + RouterIncomingRatchetSession (const i2p::crypto::NoiseSymmetricState& initState); + bool HandleNextMessage (const uint8_t * buf, size_t len); + i2p::crypto::NoiseSymmetricState& GetCurrentNoiseState () { return m_CurrentNoiseState; }; + + private: + + i2p::crypto::NoiseSymmetricState m_CurrentNoiseState; + }; + + std::shared_ptr WrapECIESX25519Message (std::shared_ptr msg, const uint8_t * key, uint64_t tag); + std::shared_ptr WrapECIESX25519MessageForRouter (std::shared_ptr msg, const uint8_t * routerPublicKey); +} +} + +#endif + diff --git a/libi2pd/Ed25519.cpp b/libi2pd/Ed25519.cpp index 1096b3b7..47edb755 100644 --- a/libi2pd/Ed25519.cpp +++ b/libi2pd/Ed25519.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "Log.h" #include "Crypto.h" @@ -25,13 +33,13 @@ namespace crypto BN_add (l, l, tmp); BN_sub_word (two_252_2, 2); // 2^252 - 2 - // -121665*inv(121666) + // -121665*inv(121666) d = BN_new (); BN_set_word (tmp, 121666); BN_mod_inverse (tmp, tmp, q, ctx); BN_set_word (d, 121665); BN_set_negative (d, 1); - BN_mul (d, d, tmp, ctx); + BN_mod_mul (d, d, tmp, q, ctx); // 2^((q-1)/4) I = BN_new (); @@ -53,7 +61,7 @@ namespace crypto BN_mod (By, By, q, ctx); // % q // precalculate Bi256 table - Bi256Carry = { Bx, By }; // B + Bi256Carry = { Bx, By }; // B for (int i = 0; i < 32; i++) { Bi256[i][0] = Bi256Carry; // first point @@ -121,7 +129,7 @@ namespace crypto return passed; } - void Ed25519::Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, + void Ed25519::Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const { BN_CTX * bnCtx = BN_CTX_new (); @@ -153,7 +161,7 @@ namespace crypto BN_CTX_free (bnCtx); } - void Ed25519::SignRedDSA (const uint8_t * privateKey, const uint8_t * publicKeyEncoded, + void Ed25519::SignRedDSA (const uint8_t * privateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const { BN_CTX * bnCtx = BN_CTX_new (); @@ -164,16 +172,16 @@ namespace crypto SHA512_CTX ctx; SHA512_Init (&ctx); SHA512_Update (&ctx, T, 80); - SHA512_Update (&ctx, publicKeyEncoded, 32); + SHA512_Update (&ctx, publicKeyEncoded, 32); SHA512_Update (&ctx, buf, len); // data uint8_t digest[64]; SHA512_Final (digest, &ctx); - BIGNUM * r = DecodeBN<64> (digest); - BN_mod (r, r, l, bnCtx); // % l + BIGNUM * r = DecodeBN<64> (digest); + BN_mod (r, r, l, bnCtx); // % l EncodeBN (r, digest, 32); // calculate R uint8_t R[EDDSA25519_SIGNATURE_LENGTH/2]; // we must use separate buffer because signature might be inside buf - EncodePoint (Normalize (MulB (digest, bnCtx), bnCtx), R); + EncodePoint (Normalize (MulB (digest, bnCtx), bnCtx), R); // calculate S SHA512_Init (&ctx); SHA512_Update (&ctx, R, EDDSA25519_SIGNATURE_LENGTH/2); // R @@ -182,7 +190,7 @@ namespace crypto SHA512_Final (digest, &ctx); BIGNUM * h = DecodeBN<64> (digest); // S = (r + h*a) % l - BIGNUM * a = DecodeBN (privateKey); + BIGNUM * a = DecodeBN (privateKey); BN_mod_mul (h, h, a, l, bnCtx); // %l BN_mod_add (h, h, r, l, bnCtx); // %l memcpy (signature, R, EDDSA25519_SIGNATURE_LENGTH/2); @@ -190,7 +198,7 @@ namespace crypto BN_free (r); BN_free (h); BN_free (a); BN_CTX_free (bnCtx); } - + EDDSAPoint Ed25519::Sum (const EDDSAPoint& p1, const EDDSAPoint& p2, BN_CTX * ctx) const { // x3 = (x1*y2+y1*x2)*(z1*z2-d*t1*t2) @@ -207,7 +215,7 @@ namespace crypto if (!t1) { t1 = BN_CTX_get (ctx); BN_mul (t1, p1.x, p1.y, ctx); } if (!t2) { t2 = BN_CTX_get (ctx); BN_mul (t2, p2.x, p2.y, ctx); } BN_mul (t3, t1, t2, ctx); - BN_mul (t3, t3, d, ctx); // C = d*t1*t2 + BN_mul (t3, t3, d, ctx); // C = d*t1*t2 if (p1.z) { @@ -256,9 +264,9 @@ namespace crypto else { BN_mul (t2, p.x, p.y, ctx); // t = x*y - BN_sqr (t2, t2, ctx); // t2 = t^2 + BN_sqr (t2, t2, ctx); // t2 = t^2 } - BN_mul (t2, t2, d, ctx); // t2 = C = d*t^2 + BN_mul (t2, t2, d, ctx); // t2 = C = d*t^2 if (p.z) BN_sqr (z2, p.z, ctx); // z2 = D = z^2 else @@ -341,7 +349,7 @@ namespace crypto BN_mod_inverse (y, p.z, q, ctx); BN_mod_mul (x, p.x, y, q, ctx); // x = x/z BN_mod_mul (y, p.y, y, q, ctx); // y = y/z - return EDDSAPoint{x, y}; + return EDDSAPoint{x, y}; } else return EDDSAPoint{BN_dup (p.x), BN_dup (p.y)}; @@ -405,7 +413,7 @@ namespace crypto BIGNUM * y = BN_new (); BN_bin2bn (buf1, EDDSA25519_PUBLIC_KEY_LENGTH, y); BIGNUM * x = RecoverX (y, ctx); - if (BN_is_bit_set (x, 0) != isHighestBitSet) + if ((bool)BN_is_bit_set (x, 0) != isHighestBitSet) BN_sub (x, q, x); // x = q - x BIGNUM * z = BN_new (), * t = BN_new (); BN_one (z); BN_mod_mul (t, x, y, q, ctx); // pre-calculate t @@ -449,93 +457,13 @@ namespace crypto } } -#if !OPENSSL_X25519 - BIGNUM * Ed25519::ScalarMul (const BIGNUM * u, const BIGNUM * k, BN_CTX * ctx) const - { - BN_CTX_start (ctx); - auto x1 = BN_CTX_get (ctx); BN_copy (x1, u); - auto x2 = BN_CTX_get (ctx); BN_one (x2); - auto z2 = BN_CTX_get (ctx); BN_zero (z2); - auto x3 = BN_CTX_get (ctx); BN_copy (x3, u); - auto z3 = BN_CTX_get (ctx); BN_one (z3); - auto c121666 = BN_CTX_get (ctx); BN_set_word (c121666, 121666); - auto tmp0 = BN_CTX_get (ctx); auto tmp1 = BN_CTX_get (ctx); - unsigned int swap = 0; - auto bits = BN_num_bits (k); - while(bits) - { - --bits; - auto k_t = BN_is_bit_set(k, bits) ? 1 : 0; - swap ^= k_t; - if (swap) - { - std::swap (x2, x3); - std::swap (z2, z3); - } - swap = k_t; - BN_mod_sub(tmp0, x3, z3, q, ctx); - BN_mod_sub(tmp1, x2, z2, q, ctx); - BN_mod_add(x2, x2, z2, q, ctx); - BN_mod_add(z2, x3, z3, q, ctx); - BN_mod_mul(z3, tmp0, x2, q, ctx); - BN_mod_mul(z2, z2, tmp1, q, ctx); - BN_mod_sqr(tmp0, tmp1, q, ctx); - BN_mod_sqr(tmp1, x2, q, ctx); - BN_mod_add(x3, z3, z2, q, ctx); - BN_mod_sub(z2, z3, z2, q, ctx); - BN_mod_mul(x2, tmp1, tmp0, q, ctx); - BN_mod_sub(tmp1, tmp1, tmp0, q, ctx); - BN_mod_sqr(z2, z2, q, ctx); - BN_mod_mul(z3, tmp1, c121666, q, ctx); - BN_mod_sqr(x3, x3, q, ctx); - BN_mod_add(tmp0, tmp0, z3, q, ctx); - BN_mod_mul(z3, x1, z2, q, ctx); - BN_mod_mul(z2, tmp1, tmp0, q, ctx); - } - if (swap) - { - std::swap (x2, x3); - std::swap (z2, z3); - } - BN_mod_inverse (z2, z2, q, ctx); - BIGNUM * res = BN_new (); // not from ctx - BN_mod_mul(res, x2, z2, q, ctx); - BN_CTX_end (ctx); - return res; - } - - void Ed25519::ScalarMul (const uint8_t * p, const uint8_t * e, uint8_t * buf, BN_CTX * ctx) const - { - BIGNUM * p1 = DecodeBN<32> (p); - uint8_t k[32]; - memcpy (k, e, 32); - k[0] &= 248; k[31] &= 127; k[31] |= 64; - BIGNUM * n = DecodeBN<32> (k); - BIGNUM * q1 = ScalarMul (p1, n, ctx); - EncodeBN (q1, buf, 32); - BN_free (p1); BN_free (n); BN_free (q1); - } - - void Ed25519::ScalarMulB (const uint8_t * e, uint8_t * buf, BN_CTX * ctx) const - { - BIGNUM *p1 = BN_new (); BN_set_word (p1, 9); - uint8_t k[32]; - memcpy (k, e, 32); - k[0] &= 248; k[31] &= 127; k[31] |= 64; - BIGNUM * n = DecodeBN<32> (k); - BIGNUM * q1 = ScalarMul (p1, n, ctx); - EncodeBN (q1, buf, 32); - BN_free (p1); BN_free (n); BN_free (q1); - } -#endif - void Ed25519::BlindPublicKey (const uint8_t * pub, const uint8_t * seed, uint8_t * blinded) { BN_CTX * ctx = BN_CTX_new (); // calculate alpha = seed mod l - BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian + BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian BN_mod (alpha, alpha, l, ctx); // % l - uint8_t priv[32]; + uint8_t priv[32]; EncodeBN (alpha, priv, 32); // back to Little Endian BN_free (alpha); // A' = BLIND_PUBKEY(A, alpha) = A + DERIVE_PUBLIC(alpha) @@ -548,16 +476,16 @@ namespace crypto { BN_CTX * ctx = BN_CTX_new (); // calculate alpha = seed mod l - BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian + BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian BN_mod (alpha, alpha, l, ctx); // % l - BIGNUM * p = DecodeBN<32> (priv); // priv is in Little Endian + BIGNUM * p = DecodeBN<32> (priv); // priv is in Little Endian BN_add (alpha, alpha, p); // alpha = alpha + priv - // a' = BLIND_PRIVKEY(a, alpha) = (a + alpha) mod L + // a' = BLIND_PRIVKEY(a, alpha) = (a + alpha) mod L BN_mod (alpha, alpha, l, ctx); // % l EncodeBN (alpha, blindedPriv, 32); - // A' = DERIVE_PUBLIC(a') + // A' = DERIVE_PUBLIC(a') auto A1 = MulB (blindedPriv, ctx); - EncodePublicKey (A1, blindedPub, ctx); + EncodePublicKey (A1, blindedPub, ctx); BN_free (alpha); BN_free (p); BN_CTX_free (ctx); } @@ -574,14 +502,14 @@ namespace crypto { uint8_t seed[32]; RAND_bytes (seed, 32); - BIGNUM * p = DecodeBN<32> (seed); + BIGNUM * p = DecodeBN<32> (seed); BN_CTX * ctx = BN_CTX_new (); BN_mod (p, p, l, ctx); // % l - EncodeBN (p, priv, 32); + EncodeBN (p, priv, 32); BN_CTX_free (ctx); BN_free (p); - } - + } + static std::unique_ptr g_Ed25519; std::unique_ptr& GetEd25519 () { @@ -597,4 +525,3 @@ namespace crypto } } } - diff --git a/libi2pd/Ed25519.h b/libi2pd/Ed25519.h index 84501b03..9c0ad801 100644 --- a/libi2pd/Ed25519.h +++ b/libi2pd/Ed25519.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef ED25519_H__ #define ED25519_H__ @@ -76,20 +84,17 @@ namespace crypto EDDSAPoint GeneratePublicKey (const uint8_t * expandedPrivateKey, BN_CTX * ctx) const; EDDSAPoint DecodePublicKey (const uint8_t * buf, BN_CTX * ctx) const; void EncodePublicKey (const EDDSAPoint& publicKey, uint8_t * buf, BN_CTX * ctx) const; -#if !OPENSSL_X25519 - void ScalarMul (const uint8_t * p, const uint8_t * e, uint8_t * buf, BN_CTX * ctx) const; // p is point, e is number for x25519 - void ScalarMulB (const uint8_t * e, uint8_t * buf, BN_CTX * ctx) const; -#endif + void BlindPublicKey (const uint8_t * pub, const uint8_t * seed, uint8_t * blinded); // for encrypted LeaseSet2, pub - 32, seed - 64, blinded - 32 void BlindPrivateKey (const uint8_t * priv, const uint8_t * seed, uint8_t * blindedPriv, uint8_t * blindedPub); // for encrypted LeaseSet2, pub - 32, seed - 64, blinded - 32 bool Verify (const EDDSAPoint& publicKey, const uint8_t * digest, const uint8_t * signature) const; void Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const; void SignRedDSA (const uint8_t * privateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const; - + static void ExpandPrivateKey (const uint8_t * key, uint8_t * expandedKey); // key - 32 bytes, expandedKey - 64 bytes void CreateRedDSAPrivateKey (uint8_t * priv); // priv is 32 bytes - + private: EDDSAPoint Sum (const EDDSAPoint& p1, const EDDSAPoint& p2, BN_CTX * ctx) const; @@ -97,8 +102,8 @@ namespace crypto EDDSAPoint Mul (const EDDSAPoint& p, const BIGNUM * e, BN_CTX * ctx) const; EDDSAPoint MulB (const uint8_t * e, BN_CTX * ctx) const; // B*e, e is 32 bytes Little Endian EDDSAPoint Normalize (const EDDSAPoint& p, BN_CTX * ctx) const; - - bool IsOnCurve (const EDDSAPoint& p, BN_CTX * ctx) const; + + bool IsOnCurve (const EDDSAPoint& p, BN_CTX * ctx) const; BIGNUM * RecoverX (const BIGNUM * y, BN_CTX * ctx) const; EDDSAPoint DecodePoint (const uint8_t * buf, BN_CTX * ctx) const; void EncodePoint (const EDDSAPoint& p, uint8_t * buf) const; @@ -107,11 +112,6 @@ namespace crypto BIGNUM * DecodeBN (const uint8_t * buf) const; void EncodeBN (const BIGNUM * bn, uint8_t * buf, size_t len) const; -#if !OPENSSL_X25519 - // for x25519 - BIGNUM * ScalarMul (const BIGNUM * p, const BIGNUM * e, BN_CTX * ctx) const; -#endif - private: BIGNUM * q, * l, * d, * I; @@ -121,13 +121,11 @@ namespace crypto // if j > 128 we use 256 - j and carry 1 to next byte // Bi256[0][0] = B, base point EDDSAPoint Bi256Carry; // Bi256[32][0] - }; + }; std::unique_ptr& GetEd25519 (); } } - #endif - diff --git a/libi2pd/Elligator.cpp b/libi2pd/Elligator.cpp new file mode 100644 index 00000000..25e09893 --- /dev/null +++ b/libi2pd/Elligator.cpp @@ -0,0 +1,214 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include "Crypto.h" +#include "Elligator.h" + +namespace i2p +{ +namespace crypto +{ + + Elligator2::Elligator2 () + { + // TODO: share with Ed22519 + p = BN_new (); + // 2^255-19 + BN_set_bit (p, 255); // 2^255 + BN_sub_word (p, 19); + p38 = BN_dup (p); BN_add_word (p38, 3); BN_div_word (p38, 8); // (p+3)/8 + p12 = BN_dup (p); BN_sub_word (p12, 1); BN_div_word (p12, 2); // (p-1)/2 + p14 = BN_dup (p); BN_sub_word (p14, 1); BN_div_word (p14, 4); // (p-1)/4 + + A = BN_new (); BN_set_word (A, 486662); + nA = BN_new (); BN_sub (nA, p, A); + + BN_CTX * ctx = BN_CTX_new (); + // calculate sqrt(-1) + sqrtn1 = BN_new (); + BN_set_word (sqrtn1, 2); + BN_mod_exp (sqrtn1, sqrtn1, p14, p, ctx); // 2^((p-1)/4 + + u = BN_new (); BN_set_word (u, 2); + iu = BN_new (); BN_mod_inverse (iu, u, p, ctx); + + BN_CTX_free (ctx); + } + + Elligator2::~Elligator2 () + { + BN_free (p); BN_free (p38); BN_free (p12); BN_free (p14); + BN_free (sqrtn1); BN_free (A); BN_free (nA); + BN_free (u); BN_free (iu); + } + + bool Elligator2::Encode (const uint8_t * key, uint8_t * encoded, bool highY, bool random) const + { + bool ret = true; + BN_CTX * ctx = BN_CTX_new (); + BN_CTX_start (ctx); + + uint8_t key1[32]; + for (size_t i = 0; i < 16; i++) // from Little Endian + { + key1[i] = key[31 - i]; + key1[31 - i] = key[i]; + } + + BIGNUM * x = BN_CTX_get (ctx); BN_bin2bn (key1, 32, x); + BIGNUM * xA = BN_CTX_get (ctx); BN_add (xA, x, A); // x + A + BN_sub (xA, p, xA); // p - (x + A) + + BIGNUM * uxxA = BN_CTX_get (ctx); // u*x*xA + BN_mod_mul (uxxA, u, x, p, ctx); + BN_mod_mul (uxxA, uxxA, xA, p, ctx); + + if (Legendre (uxxA, ctx) != -1) + { + uint8_t randByte = 0; // random highest bits and high y + if (random) + { + RAND_bytes (&randByte, 1); + highY = randByte & 0x01; + } + + BIGNUM * r = BN_CTX_get (ctx); + if (highY) + { + BN_mod_inverse (r, x, p, ctx); + BN_mod_mul (r, r, xA, p, ctx); + } + else + { + BN_mod_inverse (r, xA, p, ctx); + BN_mod_mul (r, r, x, p, ctx); + } + BN_mod_mul (r, r, iu, p, ctx); + + SquareRoot (r, r, ctx); + bn2buf (r, encoded, 32); + + if (random) + encoded[0] |= (randByte & 0xC0); // copy two highest bits from randByte + for (size_t i = 0; i < 16; i++) // To Little Endian + { + uint8_t tmp = encoded[i]; + encoded[i] = encoded[31 - i]; + encoded[31 - i] = tmp; + } + } + else + ret = false; + + BN_CTX_end (ctx); + BN_CTX_free (ctx); + return ret; + } + + bool Elligator2::Decode (const uint8_t * encoded, uint8_t * key) const + { + bool ret = true; + BN_CTX * ctx = BN_CTX_new (); + BN_CTX_start (ctx); + + uint8_t encoded1[32]; + for (size_t i = 0; i < 16; i++) // from Little Endian + { + encoded1[i] = encoded[31 - i]; + encoded1[31 - i] = encoded[i]; + } + encoded1[0] &= 0x3F; // drop two highest bits + + BIGNUM * r = BN_CTX_get (ctx); BN_bin2bn (encoded1, 32, r); + + if (BN_cmp (r, p12) <= 0) // r < (p-1)/2 + { + // v = -A/(1+u*r^2) + BIGNUM * v = BN_CTX_get (ctx); BN_mod_sqr (v, r, p, ctx); + BN_mod_mul (v, v, u, p, ctx); + BN_add_word (v, 1); + BN_mod_inverse (v, v, p, ctx); + BN_mod_mul (v, v, nA, p, ctx); + + BIGNUM * vpA = BN_CTX_get (ctx); + BN_add (vpA, v, A); // v + A + // t = v^3+A*v^2+v = v^2*(v+A)+v + BIGNUM * t = BN_CTX_get (ctx); BN_mod_sqr (t, v, p, ctx); + BN_mod_mul (t, t, vpA, p, ctx); + BN_mod_add (t, t, v, p, ctx); + + int legendre = Legendre (t, ctx); + BIGNUM * x = BN_CTX_get (ctx); + if (legendre == 1) + BN_copy (x, v); + else + { + BN_sub (x, p, v); + BN_mod_sub (x, x, A, p, ctx); + } + + bn2buf (x, key, 32); + for (size_t i = 0; i < 16; i++) // To Little Endian + { + uint8_t tmp = key[i]; + key[i] = key[31 - i]; + key[31 - i] = tmp; + } + } + else + ret = false; + + BN_CTX_end (ctx); + BN_CTX_free (ctx); + + return ret; + } + + void Elligator2::SquareRoot (const BIGNUM * x, BIGNUM * r, BN_CTX * ctx) const + { + BIGNUM * t = BN_CTX_get (ctx); + BN_mod_exp (t, x, p14, p, ctx); // t = x^((p-1)/4) + BN_mod_exp (r, x, p38, p, ctx); // r = x^((p+3)/8) + BN_add_word (t, 1); + + if (!BN_cmp (t, p)) + BN_mod_mul (r, r, sqrtn1, p, ctx); + + if (BN_cmp (r, p12) > 0) // r > (p-1)/2 + BN_sub (r, p, r); + } + + int Elligator2::Legendre (const BIGNUM * a, BN_CTX * ctx) const + { + // assume a < p, so don't check for a % p = 0, but a = 0 only + if (BN_is_zero(a)) return 0; + BIGNUM * r = BN_CTX_get (ctx); + BN_mod_exp (r, a, p12, p, ctx); // r = a^((p-1)/2) mod p + if (BN_is_word(r, 1)) + return 1; + else if (BN_is_zero(r)) + return 0; + return -1; + } + + static std::unique_ptr g_Elligator; + std::unique_ptr& GetElligator () + { + if (!g_Elligator) + { + auto el = new Elligator2(); + if (!g_Elligator) // make sure it was not created already + g_Elligator.reset (el); + else + delete el; + } + return g_Elligator; + } +} +} diff --git a/libi2pd/Elligator.h b/libi2pd/Elligator.h new file mode 100644 index 00000000..eacb03cd --- /dev/null +++ b/libi2pd/Elligator.h @@ -0,0 +1,45 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef ELLIGATOR_H__ +#define ELLIGATOR_H__ + +#include +#include +#include + +namespace i2p +{ +namespace crypto +{ + + class Elligator2 + { + public: + + Elligator2 (); + ~Elligator2 (); + + bool Encode (const uint8_t * key, uint8_t * encoded, bool highY = false, bool random = true) const; + bool Decode (const uint8_t * encoded, uint8_t * key) const; + + private: + + void SquareRoot (const BIGNUM * x, BIGNUM * r, BN_CTX * ctx) const; + int Legendre (const BIGNUM * a, BN_CTX * ctx) const; // a/p + + private: + + BIGNUM * p, * p38, * p12, * p14, * sqrtn1, * A, * nA, * u, * iu; + }; + + std::unique_ptr& GetElligator (); +} +} + +#endif diff --git a/libi2pd/Event.cpp b/libi2pd/Event.cpp deleted file mode 100644 index 9c75f95b..00000000 --- a/libi2pd/Event.cpp +++ /dev/null @@ -1,61 +0,0 @@ -#include "Event.h" -#include "Log.h" - -namespace i2p -{ - namespace event - { -#ifdef WITH_EVENTS - EventCore core; -#endif - - void EventCore::SetListener(EventListener * l) - { - m_listener = l; - LogPrint(eLogInfo, "Event: listener set"); - } - - void EventCore::QueueEvent(const EventType & ev) - { - if(m_listener) m_listener->HandleEvent(ev); - } - - void EventCore::CollectEvent(const std::string & type, const std::string & ident, uint64_t val) - { - std::unique_lock lock(m_collect_mutex); - std::string key = type + "." + ident; - if (m_collected.find(key) == m_collected.end()) - { - m_collected[key] = {type, key, 0}; - } - m_collected[key].Val += val; - } - - void EventCore::PumpCollected(EventListener * listener) - { - std::unique_lock lock(m_collect_mutex); - if(listener) - { - for(const auto & ev : m_collected) { - listener->HandlePumpEvent({{"type", ev.second.Key}, {"ident", ev.second.Ident}}, ev.second.Val); - } - } - m_collected.clear(); - } - } -} - -void QueueIntEvent(const std::string & type, const std::string & ident, uint64_t val) -{ -#ifdef WITH_EVENTS - i2p::event::core.CollectEvent(type, ident, val); -#endif -} - -void EmitEvent(const EventType & e) -{ -#if WITH_EVENTS - i2p::event::core.QueueEvent(e); -#endif -} - diff --git a/libi2pd/Event.h b/libi2pd/Event.h deleted file mode 100644 index a8b46a4b..00000000 --- a/libi2pd/Event.h +++ /dev/null @@ -1,53 +0,0 @@ -#ifndef EVENT_H__ -#define EVENT_H__ -#include -#include -#include -#include -#include - -#include - -typedef std::map EventType; - -namespace i2p -{ - namespace event - { - class EventListener { - public: - virtual ~EventListener() {}; - virtual void HandleEvent(const EventType & ev) = 0; - /** @brief handle collected event when pumped */ - virtual void HandlePumpEvent(const EventType & ev, const uint64_t & val) = 0; - }; - - class EventCore - { - public: - void QueueEvent(const EventType & ev); - void CollectEvent(const std::string & type, const std::string & ident, uint64_t val); - void SetListener(EventListener * l); - void PumpCollected(EventListener * l); - - private: - std::mutex m_collect_mutex; - struct CollectedEvent - { - std::string Key; - std::string Ident; - uint64_t Val; - }; - std::map m_collected; - EventListener * m_listener = nullptr; - }; -#ifdef WITH_EVENTS - extern EventCore core; -#endif - } -} - -void QueueIntEvent(const std::string & type, const std::string & ident, uint64_t val); -void EmitEvent(const EventType & ev); - -#endif diff --git a/libi2pd/FS.cpp b/libi2pd/FS.cpp index f8b3ed7e..3f5fc6b9 100644 --- a/libi2pd/FS.cpp +++ b/libi2pd/FS.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2016, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -7,11 +7,22 @@ */ #include -#include + +#if defined(MAC_OSX) +#if !STD_FILESYSTEM +#include +#endif +#include +#endif + +#if defined(__HAIKU__) +#include +#endif #ifdef _WIN32 #include #include +#include #endif #include "Base.h" @@ -19,10 +30,19 @@ #include "Log.h" #include "Garlic.h" +#if STD_FILESYSTEM +#include +namespace fs_lib = std::filesystem; +#else +#include +namespace fs_lib = boost::filesystem; +#endif + namespace i2p { namespace fs { std::string appName = "i2pd"; std::string dataDir = ""; + std::string certsDir = ""; #ifdef _WIN32 std::string dirSep = "\\"; #else @@ -41,18 +61,72 @@ namespace fs { return dataDir; } + const std::string & GetCertsDir () { + return certsDir; + } + + const std::string GetUTF8DataDir () { +#ifdef _WIN32 + int size = MultiByteToWideChar(CP_ACP, 0, + dataDir.c_str(), dataDir.size(), nullptr, 0); + std::wstring utf16Str(size, L'\0'); + MultiByteToWideChar(CP_ACP, 0, + dataDir.c_str(), dataDir.size(), &utf16Str[0], size); + int utf8Size = WideCharToMultiByte(CP_UTF8, 0, + utf16Str.c_str(), utf16Str.size(), nullptr, 0, nullptr, nullptr); + std::string utf8Str(utf8Size, '\0'); + WideCharToMultiByte(CP_UTF8, 0, + utf16Str.c_str(), utf16Str.size(), &utf8Str[0], utf8Size, nullptr, nullptr); + return utf8Str; +#else + return dataDir; // linux, osx, android uses UTF-8 by default +#endif + } + void DetectDataDir(const std::string & cmdline_param, bool isService) { + // with 'datadir' option if (cmdline_param != "") { dataDir = cmdline_param; return; } -#if defined(WIN32) || defined(_WIN32) - char localAppData[MAX_PATH]; + +#if !defined(MAC_OSX) && !defined(ANDROID) + // with 'service' option + if (isService) { +#ifdef _WIN32 + wchar_t commonAppData[MAX_PATH]; + if(SHGetFolderPathW(NULL, CSIDL_COMMON_APPDATA, NULL, 0, commonAppData) != S_OK) + { +#ifdef WIN32_APP + MessageBox(NULL, TEXT("Unable to get common AppData path!"), TEXT("I2Pd: error"), MB_ICONERROR | MB_OK); +#else + fprintf(stderr, "Error: Unable to get common AppData path!"); +#endif + exit(1); + } + else + { +#if ((BOOST_VERSION >= 108500) || STD_FILESYSTEM) + dataDir = fs_lib::path(commonAppData).string() + "\\" + appName; +#else + dataDir = fs_lib::wpath(commonAppData).string() + "\\" + appName; +#endif + } +#else + dataDir = "/var/lib/" + appName; +#endif + return; + } +#endif + + // detect directory as usual +#ifdef _WIN32 + wchar_t localAppData[MAX_PATH]; // check executable directory first - if(!GetModuleFileName(NULL, localAppData, MAX_PATH)) + if(!GetModuleFileNameW(NULL, localAppData, MAX_PATH)) { -#if defined(WIN32_APP) +#ifdef WIN32_APP MessageBox(NULL, TEXT("Unable to get application path!"), TEXT("I2Pd: error"), MB_ICONERROR | MB_OK); #else fprintf(stderr, "Error: Unable to get application path!"); @@ -61,16 +135,21 @@ namespace fs { } else { - auto execPath = boost::filesystem::path(localAppData).parent_path(); +#if ((BOOST_VERSION >= 108500) || STD_FILESYSTEM) + auto execPath = fs_lib::path(localAppData).parent_path(); +#else + auto execPath = fs_lib::wpath(localAppData).parent_path(); +#endif // if config file exists in .exe's folder use it - if(boost::filesystem::exists(execPath/"i2pd.conf")) // TODO: magic string - dataDir = execPath.string (); - else // otherwise %appdata% + if(fs_lib::exists(execPath/"i2pd.conf")) // TODO: magic string { - if(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, 0, localAppData) != S_OK) + dataDir = execPath.string (); + } else // otherwise %appdata% + { + if(SHGetFolderPathW(NULL, CSIDL_APPDATA, NULL, 0, localAppData) != S_OK) { -#if defined(WIN32_APP) +#ifdef WIN32_APP MessageBox(NULL, TEXT("Unable to get AppData path!"), TEXT("I2Pd: error"), MB_ICONERROR | MB_OK); #else fprintf(stderr, "Error: Unable to get AppData path!"); @@ -78,7 +157,13 @@ namespace fs { exit(1); } else - dataDir = std::string(localAppData) + "\\" + appName; + { +#if ((BOOST_VERSION >= 108500) || STD_FILESYSTEM) + dataDir = fs_lib::path(localAppData).string() + "\\" + appName; +#else + dataDir = fs_lib::wpath(localAppData).string() + "\\" + appName; +#endif + } } } return; @@ -87,21 +172,26 @@ namespace fs { dataDir = (home != NULL && strlen(home) > 0) ? home : ""; dataDir += "/Library/Application Support/" + appName; return; +#elif defined(__HAIKU__) + char home[PATH_MAX]; // /boot/home/config/settings + if (find_directory(B_USER_SETTINGS_DIRECTORY, -1, false, home, PATH_MAX) == B_OK) + dataDir = std::string(home) + "/" + appName; + else + dataDir = "/tmp/" + appName; + return; #else /* other unix */ #if defined(ANDROID) const char * ext = getenv("EXTERNAL_STORAGE"); if (!ext) ext = "/sdcard"; - if (boost::filesystem::exists(ext)) + if (fs_lib::exists(ext)) { dataDir = std::string (ext) + "/" + appName; return; } -#endif - // otherwise use /data/files +#endif // ANDROID + // use /home/user/.i2pd or /tmp/i2pd char *home = getenv("HOME"); - if (isService) { - dataDir = "/var/lib/" + appName; - } else if (home != NULL && strlen(home) > 0) { + if (home != NULL && strlen(home) > 0) { dataDir = std::string(home) + "/." + appName; } else { dataDir = "/tmp/" + appName; @@ -110,17 +200,32 @@ namespace fs { #endif } + void SetCertsDir(const std::string & cmdline_certsdir) { + if (cmdline_certsdir != "") + { + if (cmdline_certsdir[cmdline_certsdir.length()-1] == '/') + certsDir = cmdline_certsdir.substr(0, cmdline_certsdir.size()-1); // strip trailing slash + else + certsDir = cmdline_certsdir; + } + else + { + certsDir = i2p::fs::DataDirPath("certificates"); + } + return; + } + bool Init() { - if (!boost::filesystem::exists(dataDir)) - boost::filesystem::create_directory(dataDir); + if (!fs_lib::exists(dataDir)) + fs_lib::create_directory(dataDir); std::string destinations = DataDirPath("destinations"); - if (!boost::filesystem::exists(destinations)) - boost::filesystem::create_directory(destinations); + if (!fs_lib::exists(destinations)) + fs_lib::create_directory(destinations); std::string tags = DataDirPath("tags"); - if (!boost::filesystem::exists(tags)) - boost::filesystem::create_directory(tags); + if (!fs_lib::exists(tags)) + fs_lib::create_directory(tags); else i2p::garlic::CleanUpTagsFiles (); @@ -128,13 +233,13 @@ namespace fs { } bool ReadDir(const std::string & path, std::vector & files) { - if (!boost::filesystem::exists(path)) + if (!fs_lib::exists(path)) return false; - boost::filesystem::directory_iterator it(path); - boost::filesystem::directory_iterator end; + fs_lib::directory_iterator it(path); + fs_lib::directory_iterator end; for ( ; it != end; it++) { - if (!boost::filesystem::is_regular_file(it->status())) + if (!fs_lib::is_regular_file(it->status())) continue; files.push_back(it->path().string()); } @@ -143,29 +248,42 @@ namespace fs { } bool Exists(const std::string & path) { - return boost::filesystem::exists(path); + return fs_lib::exists(path); } uint32_t GetLastUpdateTime (const std::string & path) { - if (!boost::filesystem::exists(path)) + if (!fs_lib::exists(path)) return 0; +#if STD_FILESYSTEM + std::error_code ec; + auto t = std::filesystem::last_write_time (path, ec); + if (ec) return 0; +/*#if __cplusplus >= 202002L // C++ 20 or higher + const auto sctp = std::chrono::clock_cast(t); +#else */ // TODO: wait until implemented + const auto sctp = std::chrono::time_point_cast( + t - decltype(t)::clock::now() + std::chrono::system_clock::now()); +/*#endif */ + return std::chrono::system_clock::to_time_t(sctp); +#else boost::system::error_code ec; auto t = boost::filesystem::last_write_time (path, ec); return ec ? 0 : t; +#endif } bool Remove(const std::string & path) { - if (!boost::filesystem::exists(path)) + if (!fs_lib::exists(path)) return false; - return boost::filesystem::remove(path); + return fs_lib::remove(path); } bool CreateDirectory (const std::string& path) { - if (boost::filesystem::exists(path) && boost::filesystem::is_directory (boost::filesystem::status (path))) + if (fs_lib::exists(path) && fs_lib::is_directory (fs_lib::status (path))) return true; - return boost::filesystem::create_directory(path); + return fs_lib::create_directory(path); } void HashedStorage::SetPlace(const std::string &path) { @@ -173,16 +291,30 @@ namespace fs { } bool HashedStorage::Init(const char * chars, size_t count) { - if (!boost::filesystem::exists(root)) { - boost::filesystem::create_directories(root); + if (!fs_lib::exists(root)) { + fs_lib::create_directories(root); } for (size_t i = 0; i < count; i++) { auto p = root + i2p::fs::dirSep + prefix1 + chars[i]; - if (boost::filesystem::exists(p)) + if (fs_lib::exists(p)) continue; - if (boost::filesystem::create_directory(p)) +#if TARGET_OS_SIMULATOR + // ios simulator fs says it is case sensitive, but it is not + boost::system::error_code ec; + if (fs_lib::create_directory(p, ec)) + continue; + switch (ec.value()) { + case boost::system::errc::file_exists: + case boost::system::errc::success: + continue; + default: + throw boost::system::system_error( ec, __func__ ); + } +#else + if (fs_lib::create_directory(p)) continue; /* ^ throws exception on failure */ +#endif return false; } return true; @@ -203,9 +335,9 @@ namespace fs { void HashedStorage::Remove(const std::string & ident) { std::string path = Path(ident); - if (!boost::filesystem::exists(path)) + if (!fs_lib::exists(path)) return; - boost::filesystem::remove(path); + fs_lib::remove(path); } void HashedStorage::Traverse(std::vector & files) { @@ -216,12 +348,12 @@ namespace fs { void HashedStorage::Iterate(FilenameVisitor v) { - boost::filesystem::path p(root); - boost::filesystem::recursive_directory_iterator it(p); - boost::filesystem::recursive_directory_iterator end; + fs_lib::path p(root); + fs_lib::recursive_directory_iterator it(p); + fs_lib::recursive_directory_iterator end; for ( ; it != end; it++) { - if (!boost::filesystem::is_regular_file( it->status() )) + if (!fs_lib::is_regular_file( it->status() )) continue; const std::string & t = it->path().string(); v(t); diff --git a/libi2pd/FS.h b/libi2pd/FS.h index 6f112218..7af8f494 100644 --- a/libi2pd/FS.h +++ b/libi2pd/FS.h @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2016, The PurpleI2P Project +* Copyright (c) 2013-2024, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -15,135 +15,167 @@ #include #include +#ifndef STD_FILESYSTEM +# if (_WIN32 && __GNUG__) // MinGW GCC somehow incorrectly converts paths +# define STD_FILESYSTEM 0 +# elif (!TARGET_OS_SIMULATOR && __has_include()) // supports std::filesystem +# define STD_FILESYSTEM 1 +# else +# define STD_FILESYSTEM 0 +# endif +#endif + namespace i2p { namespace fs { - extern std::string dirSep; + extern std::string dirSep; - /** - * @brief Class to work with NetDb & Router profiles - * - * Usage: - * - * const char alphabet[8] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'}; - * auto h = HashedStorage("name", "y", "z-", ".txt"); - * h.SetPlace("/tmp/hs-test"); - * h.GetName() -> gives "name" - * h.GetRoot() -> gives "/tmp/hs-test/name" - * h.Init(alphabet, 8); <- creates needed dirs, 8 is size of alphabet - * h.Path("abcd"); <- returns /tmp/hs-test/name/ya/z-abcd.txt - * h.Remove("abcd"); <- removes /tmp/hs-test/name/ya/z-abcd.txt, if it exists - * std::vector files; - * h.Traverse(files); <- finds all files in storage and saves in given vector - */ - class HashedStorage { - protected: - std::string root; /**< path to storage with it's name included */ - std::string name; /**< name of the storage */ - std::string prefix1; /**< hashed directory prefix */ - std::string prefix2; /**< prefix of file in storage */ - std::string suffix; /**< suffix of file in storage (extension) */ + /** + * @brief Class to work with NetDb & Router profiles + * + * Usage: + * + * const char alphabet[8] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'}; + * auto h = HashedStorage("name", "y", "z-", ".txt"); + * h.SetPlace("/tmp/hs-test"); + * h.GetName() -> gives "name" + * h.GetRoot() -> gives "/tmp/hs-test/name" + * h.Init(alphabet, 8); <- creates needed dirs, 8 is size of alphabet + * h.Path("abcd"); <- returns /tmp/hs-test/name/ya/z-abcd.txt + * h.Remove("abcd"); <- removes /tmp/hs-test/name/ya/z-abcd.txt, if it exists + * std::vector files; + * h.Traverse(files); <- finds all files in storage and saves in given vector + */ + class HashedStorage + { + protected: - public: - typedef std::function FilenameVisitor; - HashedStorage(const char *n, const char *p1, const char *p2, const char *s): - name(n), prefix1(p1), prefix2(p2), suffix(s) {}; + std::string root; /**< path to storage with it's name included */ + std::string name; /**< name of the storage */ + std::string prefix1; /**< hashed directory prefix */ + std::string prefix2; /**< prefix of file in storage */ + std::string suffix; /**< suffix of file in storage (extension) */ - /** create subdirs in storage */ - bool Init(const char* chars, size_t cnt); - const std::string & GetRoot() const { return root; } - const std::string & GetName() const { return name; } - /** set directory where to place storage directory */ - void SetPlace(const std::string & path); - /** path to file with given ident */ - std::string Path(const std::string & ident) const; - /** remove file by ident */ - void Remove(const std::string & ident); - /** find all files in storage and store list in provided vector */ - void Traverse(std::vector & files); - /** visit every file in this storage with a visitor */ - void Iterate(FilenameVisitor v); - }; + public: - /** @brief Returns current application name, default 'i2pd' */ + typedef std::function FilenameVisitor; + HashedStorage(const char *n, const char *p1, const char *p2, const char *s): + name(n), prefix1(p1), prefix2(p2), suffix(s) {}; + + /** create subdirs in storage */ + bool Init(const char* chars, size_t cnt); + const std::string & GetRoot() const { return root; } + const std::string & GetName() const { return name; } + /** set directory where to place storage directory */ + void SetPlace(const std::string & path); + /** path to file with given ident */ + std::string Path(const std::string & ident) const; + /** remove file by ident */ + void Remove(const std::string & ident); + /** find all files in storage and store list in provided vector */ + void Traverse(std::vector & files); + /** visit every file in this storage with a visitor */ + void Iterate(FilenameVisitor v); + }; + + /** @brief Returns current application name, default 'i2pd' */ const std::string & GetAppName (); - /** @brief Set application name, affects autodetection of datadir */ + /** @brief Set application name, affects autodetection of datadir */ void SetAppName (const std::string& name); - /** @brief Returns datadir path */ - const std::string & GetDataDir(); + /** @brief Returns datadir path */ + const std::string & GetDataDir(); - /** - * @brief Set datadir either from cmdline option or using autodetection - * @param cmdline_param Value of cmdline parameter --datadir= - * @param isService Value of cmdline parameter --service - * - * Examples of autodetected paths: - * - * Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd\ - * Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd\ - * Mac: /Library/Application Support/i2pd/ or ~/Library/Application Support/i2pd/ - * Unix: /var/lib/i2pd/ (system=1) >> ~/.i2pd/ or /tmp/i2pd/ - */ - void DetectDataDir(const std::string & cmdline_datadir, bool isService = false); + /** @brief Returns certsdir path */ + const std::string & GetCertsDir(); - /** - * @brief Create subdirectories inside datadir - */ - bool Init(); + /** @brief Returns datadir path in UTF-8 encoding */ + const std::string GetUTF8DataDir(); - /** - * @brief Get list of files in directory - * @param path Path to directory - * @param files Vector to store found files - * @return true on success and false if directory not exists - */ - bool ReadDir(const std::string & path, std::vector & files); + /** + * @brief Set datadir either from cmdline option or using autodetection + * @param cmdline_param Value of cmdline parameter --datadir= + * @param isService Value of cmdline parameter --service + * + * Examples of autodetected paths: + * + * Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd\ + * Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd\ + * Mac: /Library/Application Support/i2pd/ or ~/Library/Application Support/i2pd/ + * Unix: /var/lib/i2pd/ (system=1) >> ~/.i2pd/ or /tmp/i2pd/ + */ + void DetectDataDir(const std::string & cmdline_datadir, bool isService = false); - /** - * @brief Remove file with given path - * @param path Absolute path to file - * @return true on success, false if file not exists, throws exception on error - */ - bool Remove(const std::string & path); + /** + * @brief Set certsdir either from cmdline option or using autodetection + * @param cmdline_param Value of cmdline parameter --certsdir= + * + * Examples of autodetected paths: + * + * Windows < Vista: C:\Documents and Settings\Username\Application Data\i2pd\certificates + * Windows >= Vista: C:\Users\Username\AppData\Roaming\i2pd\certificates + * Mac: /Library/Application Support/i2pd/ or ~/Library/Application Support/i2pd/certificates + * Unix: /var/lib/i2pd/certificates (system=1) >> ~/.i2pd/ or /tmp/i2pd/certificates + */ + void SetCertsDir(const std::string & cmdline_certsdir); - /** - * @brief Check existence of file - * @param path Absolute path to file - * @return true if file exists, false otherwise - */ - bool Exists(const std::string & path); + /** + * @brief Create subdirectories inside datadir + */ + bool Init(); - uint32_t GetLastUpdateTime (const std::string & path); // seconds since epoch + /** + * @brief Get list of files in directory + * @param path Path to directory + * @param files Vector to store found files + * @return true on success and false if directory not exists + */ + bool ReadDir(const std::string & path, std::vector & files); - bool CreateDirectory (const std::string& path); + /** + * @brief Remove file with given path + * @param path Absolute path to file + * @return true on success, false if file not exists, throws exception on error + */ + bool Remove(const std::string & path); - template - void _ExpandPath(std::stringstream & path, T c) { - path << i2p::fs::dirSep << c; - } + /** + * @brief Check existence of file + * @param path Absolute path to file + * @return true if file exists, false otherwise + */ + bool Exists(const std::string & path); - template - void _ExpandPath(std::stringstream & path, T c, Other ... other) { - _ExpandPath(path, c); - _ExpandPath(path, other ...); - } + uint32_t GetLastUpdateTime (const std::string & path); // seconds since epoch - /** - * @brief Get path relative to datadir - * - * Examples (with datadir = "/tmp/i2pd"): - * - * i2p::fs::Path("test") -> '/tmp/i2pd/test' - * i2p::fs::Path("test", "file.txt") -> '/tmp/i2pd/test/file.txt' - */ - template - std::string DataDirPath(Other ... components) { - std::stringstream s(""); - s << i2p::fs::GetDataDir(); - _ExpandPath(s, components ...); + bool CreateDirectory (const std::string& path); - return s.str(); - } + template + void _ExpandPath(std::stringstream & path, T c) { + path << i2p::fs::dirSep << c; + } + + template + void _ExpandPath(std::stringstream & path, T c, Other ... other) { + _ExpandPath(path, c); + _ExpandPath(path, other ...); + } + + /** + * @brief Get path relative to datadir + * + * Examples (with datadir = "/tmp/i2pd"): + * + * i2p::fs::Path("test") -> '/tmp/i2pd/test' + * i2p::fs::Path("test", "file.txt") -> '/tmp/i2pd/test/file.txt' + */ + template + std::string DataDirPath(Other ... components) { + std::stringstream s(""); + s << i2p::fs::GetDataDir(); + _ExpandPath(s, components ...); + + return s.str(); + } template std::string StorageRootPath (const Storage& storage, Filename... filenames) diff --git a/libi2pd/Family.cpp b/libi2pd/Family.cpp index b7cbf7d4..300a50ab 100644 --- a/libi2pd/Family.cpp +++ b/libi2pd/Family.cpp @@ -1,10 +1,18 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include -#include #include #include "Crypto.h" #include "FS.h" #include "Log.h" #include "Family.h" +#include "Config.h" namespace i2p { @@ -16,6 +24,8 @@ namespace data Families::~Families () { + for (auto it : m_SigningKeys) + if (it.second.first) EVP_PKEY_free (it.second.first); } void Families::LoadCertificate (const std::string& filename) @@ -38,48 +48,16 @@ namespace data cn += 3; char * family = strstr (cn, ".family"); if (family) family[0] = 0; - } - auto pkey = X509_get_pubkey (cert); - int keyType = EVP_PKEY_base_id (pkey); - switch (keyType) - { - case EVP_PKEY_DSA: - // TODO: - break; - case EVP_PKEY_EC: - { - EC_KEY * ecKey = EVP_PKEY_get1_EC_KEY (pkey); - if (ecKey) + auto pkey = X509_get_pubkey (cert); + if (pkey) + { + if (!m_SigningKeys.emplace (cn, std::make_pair(pkey, (int)m_SigningKeys.size () + 1)).second) { - auto group = EC_KEY_get0_group (ecKey); - if (group) - { - int curve = EC_GROUP_get_curve_name (group); - if (curve == NID_X9_62_prime256v1) - { - uint8_t signingKey[64]; - BIGNUM * x = BN_new(), * y = BN_new(); - EC_POINT_get_affine_coordinates_GFp (group, - EC_KEY_get0_public_key (ecKey), x, y, NULL); - i2p::crypto::bn2buf (x, signingKey, 32); - i2p::crypto::bn2buf (y, signingKey + 32, 32); - BN_free (x); BN_free (y); - verifier = std::make_shared(); - verifier->SetPublicKey (signingKey); - } - else - LogPrint (eLogWarning, "Family: elliptic curve ", curve, " is not supported"); - } - EC_KEY_free (ecKey); - } - break; - } - default: - LogPrint (eLogWarning, "Family: Certificate key type ", keyType, " is not supported"); + EVP_PKEY_free (pkey); + LogPrint (eLogError, "Family: Duplicated family name ", cn); + } + } } - EVP_PKEY_free (pkey); - if (verifier && cn) - m_SigningKeys[cn] = verifier; } SSL_free (ssl); } @@ -90,7 +68,8 @@ namespace data void Families::LoadCertificates () { - std::string certDir = i2p::fs::DataDirPath("certificates", "family"); + std::string certDir = i2p::fs::GetCertsDir() + i2p::fs::dirSep + "family"; + std::vector files; int numCertificates = 0; @@ -111,27 +90,43 @@ namespace data } bool Families::VerifyFamily (const std::string& family, const IdentHash& ident, - const char * signature, const char * key) + std::string_view signature, const char * key) const { - uint8_t buf[50], signatureBuf[64]; - size_t len = family.length (), signatureLen = strlen (signature); - if (len + 32 > 50) + uint8_t buf[100], signatureBuf[64]; + size_t len = family.length (); + if (len + 32 > 100) { LogPrint (eLogError, "Family: ", family, " is too long"); return false; } - - memcpy (buf, family.c_str (), len); - memcpy (buf + len, (const uint8_t *)ident, 32); - len += 32; - Base64ToByteStream (signature, signatureLen, signatureBuf, 64); auto it = m_SigningKeys.find (family); - if (it != m_SigningKeys.end ()) - return it->second->Verify (buf, len, signatureBuf); + if (it != m_SigningKeys.end () && it->second.first) + { + memcpy (buf, family.c_str (), len); + memcpy (buf + len, (const uint8_t *)ident, 32); + len += 32; + auto signatureBufLen = Base64ToByteStream (signature, signatureBuf, 64); + if (signatureBufLen) + { + EVP_MD_CTX * ctx = EVP_MD_CTX_create (); + EVP_DigestVerifyInit (ctx, NULL, NULL, NULL, it->second.first); + auto ret = EVP_DigestVerify (ctx, signatureBuf, signatureBufLen, buf, len); + EVP_MD_CTX_destroy (ctx); + return ret; + } + } // TODO: process key return true; } + FamilyID Families::GetFamilyID (const std::string& family) const + { + auto it = m_SigningKeys.find (family); + if (it != m_SigningKeys.end ()) + return it->second.second; + return 0; + } + std::string CreateFamilySignature (const std::string& family, const IdentHash& ident) { auto filename = i2p::fs::DataDirPath("family", (family + ".key")); @@ -159,12 +154,7 @@ namespace data memcpy (buf + len, (const uint8_t *)ident, 32); len += 32; signer.Sign (buf, len, signature); - len = Base64EncodingBufferSize (64); - char * b64 = new char[len+1]; - len = ByteStreamToBase64 (signature, 64, b64, len); - b64[len] = 0; - sig = b64; - delete[] b64; + sig = ByteStreamToBase64 (signature, 64); } else LogPrint (eLogWarning, "Family: elliptic curve ", curve, " is not supported"); @@ -179,4 +169,3 @@ namespace data } } } - diff --git a/libi2pd/Family.h b/libi2pd/Family.h index a1b5a789..fcf61082 100644 --- a/libi2pd/Family.h +++ b/libi2pd/Family.h @@ -1,16 +1,26 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef FAMILY_H__ #define FAMILY_H__ #include #include +#include #include -#include "Signature.h" +#include #include "Identity.h" namespace i2p { namespace data { + typedef int FamilyID; class Families { public: @@ -19,7 +29,8 @@ namespace data ~Families (); void LoadCertificates (); bool VerifyFamily (const std::string& family, const IdentHash& ident, - const char * signature, const char * key = nullptr); + std::string_view signature, const char * key = nullptr) const; + FamilyID GetFamilyID (const std::string& family) const; private: @@ -27,7 +38,7 @@ namespace data private: - std::map > m_SigningKeys; + std::map > m_SigningKeys; // family -> (verification pkey, id) }; std::string CreateFamilySignature (const std::string& family, const IdentHash& ident); diff --git a/libi2pd/Garlic.cpp b/libi2pd/Garlic.cpp index 888e988c..8c8602e8 100644 --- a/libi2pd/Garlic.cpp +++ b/libi2pd/Garlic.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "I2PEndian.h" #include @@ -11,30 +19,22 @@ #include "Timestamp.h" #include "Log.h" #include "FS.h" +#include "ECIESX25519AEADRatchetSession.h" #include "Garlic.h" namespace i2p { namespace garlic { - GarlicRoutingSession::GarlicRoutingSession (GarlicDestination * owner, - std::shared_ptr destination, int numTags, bool attachLeaseSet): - m_Owner (owner), m_Destination (destination), m_NumTags (numTags), - m_LeaseSetUpdateStatus (attachLeaseSet ? eLeaseSetUpdated : eLeaseSetDoNotSend), + GarlicRoutingSession::GarlicRoutingSession (GarlicDestination * owner, bool attachLeaseSet): + m_Owner (owner), m_LeaseSetUpdateStatus (attachLeaseSet ? eLeaseSetUpdated : eLeaseSetDoNotSend), m_LeaseSetUpdateMsgID (0) { - // create new session tags and session key - RAND_bytes (m_SessionKey, 32); - m_Encryption.SetKey (m_SessionKey); } - GarlicRoutingSession::GarlicRoutingSession (const uint8_t * sessionKey, const SessionTag& sessionTag): - m_Owner (nullptr), m_NumTags (1), m_LeaseSetUpdateStatus (eLeaseSetDoNotSend), m_LeaseSetUpdateMsgID (0) + GarlicRoutingSession::GarlicRoutingSession (): + m_Owner (nullptr), m_LeaseSetUpdateStatus (eLeaseSetDoNotSend), m_LeaseSetUpdateMsgID (0) { - memcpy (m_SessionKey, sessionKey, 32); - m_Encryption.SetKey (m_SessionKey); - m_SessionTags.push_back (sessionTag); - m_SessionTags.back ().creationTime = i2p::util::GetSecondsSinceEpoch (); } GarlicRoutingSession::~GarlicRoutingSession () @@ -45,109 +45,80 @@ namespace garlic { if (!m_SharedRoutingPath) return nullptr; uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - if (m_SharedRoutingPath->numTimesUsed >= ROUTING_PATH_MAX_NUM_TIMES_USED || - !m_SharedRoutingPath->outboundTunnel->IsEstablished () || + if (!m_SharedRoutingPath->outboundTunnel->IsEstablished () || ts*1000LL > m_SharedRoutingPath->remoteLease->endDate || - ts > m_SharedRoutingPath->updateTime + ROUTING_PATH_EXPIRATION_TIMEOUT) + ts > m_SharedRoutingPath->updateTime + ROUTING_PATH_EXPIRATION_TIMEOUT) m_SharedRoutingPath = nullptr; - if (m_SharedRoutingPath) m_SharedRoutingPath->numTimesUsed++; return m_SharedRoutingPath; } void GarlicRoutingSession::SetSharedRoutingPath (std::shared_ptr path) { if (path && path->outboundTunnel && path->remoteLease) - { path->updateTime = i2p::util::GetSecondsSinceEpoch (); - path->numTimesUsed = 0; - } else path = nullptr; m_SharedRoutingPath = path; } - GarlicRoutingSession::UnconfirmedTags * GarlicRoutingSession::GenerateSessionTags () + bool GarlicRoutingSession::MessageConfirmed (uint32_t msgID) { - auto tags = new UnconfirmedTags (m_NumTags); - tags->tagsCreationTime = i2p::util::GetSecondsSinceEpoch (); - for (int i = 0; i < m_NumTags; i++) + if (msgID == GetLeaseSetUpdateMsgID ()) { - RAND_bytes (tags->sessionTags[i], 32); - tags->sessionTags[i].creationTime = tags->tagsCreationTime; - } - return tags; - } - - void GarlicRoutingSession::MessageConfirmed (uint32_t msgID) - { - TagsConfirmed (msgID); - if (msgID == m_LeaseSetUpdateMsgID) - { - m_LeaseSetUpdateStatus = eLeaseSetUpToDate; - m_LeaseSetUpdateMsgID = 0; + SetLeaseSetUpdateStatus (eLeaseSetUpToDate); + SetLeaseSetUpdateMsgID (0); LogPrint (eLogInfo, "Garlic: LeaseSet update confirmed"); + return true; } - else - CleanupExpiredTags (); + return false; } - void GarlicRoutingSession::TagsConfirmed (uint32_t msgID) + void GarlicRoutingSession::CleanupUnconfirmedLeaseSet (uint64_t ts) { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - auto it = m_UnconfirmedTagsMsgs.find (msgID); - if (it != m_UnconfirmedTagsMsgs.end ()) + if (m_LeaseSetUpdateMsgID && ts*1000LL > m_LeaseSetSubmissionTime + LEASESET_CONFIRMATION_TIMEOUT) { - auto& tags = it->second; - if (ts < tags->tagsCreationTime + OUTGOING_TAGS_EXPIRATION_TIMEOUT) - { - for (int i = 0; i < tags->numTags; i++) - m_SessionTags.push_back (tags->sessionTags[i]); - } - m_UnconfirmedTagsMsgs.erase (it); - } - } - - bool GarlicRoutingSession::CleanupExpiredTags () - { - auto ts = i2p::util::GetSecondsSinceEpoch (); - for (auto it = m_SessionTags.begin (); it != m_SessionTags.end ();) - { - if (ts >= it->creationTime + OUTGOING_TAGS_EXPIRATION_TIMEOUT) - it = m_SessionTags.erase (it); - else - ++it; - } - CleanupUnconfirmedTags (); - if (m_LeaseSetUpdateMsgID && ts*1000LL > m_LeaseSetSubmissionTime + LEASET_CONFIRMATION_TIMEOUT) - { - if (m_Owner) - m_Owner->RemoveDeliveryStatusSession (m_LeaseSetUpdateMsgID); + if (GetOwner ()) + GetOwner ()->RemoveDeliveryStatusSession (m_LeaseSetUpdateMsgID); m_LeaseSetUpdateMsgID = 0; } - return !m_SessionTags.empty () || !m_UnconfirmedTagsMsgs.empty (); } - bool GarlicRoutingSession::CleanupUnconfirmedTags () + std::shared_ptr GarlicRoutingSession::CreateEncryptedDeliveryStatusMsg (uint32_t msgID) { - bool ret = false; - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - // delete expired unconfirmed tags - for (auto it = m_UnconfirmedTagsMsgs.begin (); it != m_UnconfirmedTagsMsgs.end ();) + auto msg = CreateDeliveryStatusMsg (msgID); + if (GetOwner ()) { - if (ts >= it->second->tagsCreationTime + OUTGOING_TAGS_CONFIRMATION_TIMEOUT) - { - if (m_Owner) - m_Owner->RemoveDeliveryStatusSession (it->first); - it = m_UnconfirmedTagsMsgs.erase (it); - ret = true; - } - else - ++it; + //encrypt + uint8_t key[32], tag[32]; + RAND_bytes (key, 32); // random session key + RAND_bytes (tag, 32); // random session tag + GetOwner ()->SubmitSessionKey (key, tag); + ElGamalAESSession garlic (key, tag); + msg = garlic.WrapSingleMessage (msg); } - return ret; + return msg; } - std::shared_ptr GarlicRoutingSession::WrapSingleMessage (std::shared_ptr msg) + ElGamalAESSession::ElGamalAESSession (GarlicDestination * owner, + std::shared_ptr destination, int numTags, bool attachLeaseSet): + GarlicRoutingSession (owner, attachLeaseSet), + m_Destination (destination), m_NumTags (numTags) + { + // create new session tags and session key + RAND_bytes (m_SessionKey, 32); + m_Encryption.SetKey (m_SessionKey); + } + + ElGamalAESSession::ElGamalAESSession (const uint8_t * sessionKey, const SessionTag& sessionTag): + m_NumTags(1) + { + memcpy (m_SessionKey, sessionKey, 32); + m_Encryption.SetKey (m_SessionKey); + m_SessionTags.push_back (sessionTag); + m_SessionTags.back ().creationTime = i2p::util::GetSecondsSinceEpoch (); + } + + std::shared_ptr ElGamalAESSession::WrapSingleMessage (std::shared_ptr msg) { auto m = NewI2NPMessage (); m->Align (12); // in order to get buf aligned to 16 (12 + 4) @@ -188,10 +159,8 @@ namespace garlic RAND_bytes (elGamal.preIV, 32); // Pre-IV uint8_t iv[32]; // IV is first 16 bytes SHA256(elGamal.preIV, 32, iv); - BN_CTX * ctx = BN_CTX_new (); - m_Destination->Encrypt ((uint8_t *)&elGamal, buf, ctx); - BN_CTX_free (ctx); - m_Encryption.SetIV (iv); + m_Destination->Encrypt ((uint8_t *)&elGamal, buf); + m_IV = iv; buf += 514; len += 514; } @@ -201,7 +170,7 @@ namespace garlic memcpy (buf, tag, 32); uint8_t iv[32]; // IV is first 16 bytes SHA256(tag, 32, iv); - m_Encryption.SetIV (iv); + m_IV = iv; buf += 32; len += 32; } @@ -213,10 +182,10 @@ namespace garlic return m; } - size_t GarlicRoutingSession::CreateAESBlock (uint8_t * buf, std::shared_ptr msg) + size_t ElGamalAESSession::CreateAESBlock (uint8_t * buf, std::shared_ptr msg) { size_t blockSize = 0; - bool createNewTags = m_Owner && m_NumTags && ((int)m_SessionTags.size () <= m_NumTags*2/3); + bool createNewTags = GetOwner () && m_NumTags && ((int)m_SessionTags.size () <= m_NumTags*2/3); UnconfirmedTags * newTags = createNewTags ? GenerateSessionTags () : nullptr; htobuf16 (buf, newTags ? htobe16 (newTags->numTags) : 0); // tag count blockSize += 2; @@ -241,11 +210,11 @@ namespace garlic size_t rem = blockSize % 16; if (rem) blockSize += (16-rem); //padding - m_Encryption.Encrypt(buf, blockSize, buf); + m_Encryption.Encrypt(buf, blockSize, m_IV, buf); return blockSize; } - size_t GarlicRoutingSession::CreateGarlicPayload (uint8_t * payload, std::shared_ptr msg, UnconfirmedTags * newTags) + size_t ElGamalAESSession::CreateGarlicPayload (uint8_t * payload, std::shared_ptr msg, UnconfirmedTags * newTags) { uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); uint32_t msgID; @@ -255,17 +224,17 @@ namespace garlic *numCloves = 0; size++; - if (m_Owner) + if (GetOwner ()) { // resubmit non-confirmed LeaseSet - if (m_LeaseSetUpdateStatus == eLeaseSetSubmitted && ts > m_LeaseSetSubmissionTime + LEASET_CONFIRMATION_TIMEOUT) + if (GetLeaseSetUpdateStatus () == eLeaseSetSubmitted && ts > GetLeaseSetSubmissionTime () + LEASESET_CONFIRMATION_TIMEOUT) { - m_LeaseSetUpdateStatus = eLeaseSetUpdated; + SetLeaseSetUpdateStatus (eLeaseSetUpdated); SetSharedRoutingPath (nullptr); // invalidate path since leaseset was not confirmed } // attach DeviveryStatus if necessary - if (newTags || m_LeaseSetUpdateStatus == eLeaseSetUpdated) // new tags created or leaseset updated + if (newTags || GetLeaseSetUpdateStatus () == eLeaseSetUpdated) // new tags created or leaseset updated { // clove is DeliveryStatus auto cloveSize = CreateDeliveryStatusClove (payload + size, msgID); @@ -279,25 +248,25 @@ namespace garlic m_UnconfirmedTagsMsgs.insert (std::make_pair(msgID, std::unique_ptr(newTags))); newTags = nullptr; // got acquired } - m_Owner->DeliveryStatusSent (shared_from_this (), msgID); + GetOwner ()->DeliveryStatusSent (shared_from_this (), msgID); } else LogPrint (eLogWarning, "Garlic: DeliveryStatus clove was not created"); } // attach LeaseSet - if (m_LeaseSetUpdateStatus == eLeaseSetUpdated) + if (GetLeaseSetUpdateStatus () == eLeaseSetUpdated) { - if (m_LeaseSetUpdateMsgID) m_Owner->RemoveDeliveryStatusSession (m_LeaseSetUpdateMsgID); // remove previous - m_LeaseSetUpdateStatus = eLeaseSetSubmitted; - m_LeaseSetUpdateMsgID = msgID; - m_LeaseSetSubmissionTime = ts; + if (GetLeaseSetUpdateMsgID ()) GetOwner ()->RemoveDeliveryStatusSession (GetLeaseSetUpdateMsgID ()); // remove previous + SetLeaseSetUpdateStatus (eLeaseSetSubmitted); + SetLeaseSetUpdateMsgID (msgID); + SetLeaseSetSubmissionTime (ts); // clove if our leaseSet must be attached - auto leaseSet = CreateDatabaseStoreMsg (m_Owner->GetLeaseSet ()); + auto leaseSet = CreateDatabaseStoreMsg (GetOwner ()->GetLeaseSet ()); size += CreateGarlicClove (payload + size, leaseSet, false); (*numCloves)++; } } - if (msg) // clove message ifself if presented + if (msg) // clove message itself if presented { size += CreateGarlicClove (payload + size, msg, m_Destination ? m_Destination->IsDestination () : false); (*numCloves)++; @@ -313,20 +282,20 @@ namespace garlic return size; } - size_t GarlicRoutingSession::CreateGarlicClove (uint8_t * buf, std::shared_ptr msg, bool isDestination) + size_t ElGamalAESSession::CreateGarlicClove (uint8_t * buf, std::shared_ptr msg, bool isDestination) { uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 8000; // 8 sec size_t size = 0; if (isDestination) { - buf[size] = eGarlicDeliveryTypeDestination << 5;// delivery instructions flag destination + buf[size] = eGarlicDeliveryTypeDestination << 5;// delivery instructions flag destination size++; memcpy (buf + size, m_Destination->GetIdentHash (), 32); size += 32; } else { - buf[size] = 0;// delivery instructions flag local + buf[size] = 0;// delivery instructions flag local size++; } @@ -343,12 +312,12 @@ namespace garlic return size; } - size_t GarlicRoutingSession::CreateDeliveryStatusClove (uint8_t * buf, uint32_t msgID) + size_t ElGamalAESSession::CreateDeliveryStatusClove (uint8_t * buf, uint32_t msgID) { size_t size = 0; - if (m_Owner) + if (GetOwner ()) { - auto inboundTunnel = m_Owner->GetTunnelPool ()->GetNextInboundTunnel (); + auto inboundTunnel = GetOwner ()->GetTunnelPool ()->GetNextInboundTunnel (); if (inboundTunnel) { buf[size] = eGarlicDeliveryTypeTunnel << 5; // delivery instructions flag tunnel @@ -359,19 +328,12 @@ namespace garlic htobe32buf (buf + size, inboundTunnel->GetNextTunnelID ()); // tunnelID size += 4; // create msg - auto msg = CreateDeliveryStatusMsg (msgID); - if (m_Owner) + auto msg = CreateEncryptedDeliveryStatusMsg (msgID); + if (msg) { - //encrypt - uint8_t key[32], tag[32]; - RAND_bytes (key, 32); // random session key - RAND_bytes (tag, 32); // random session tag - m_Owner->SubmitSessionKey (key, tag); - GarlicRoutingSession garlic (key, tag); - msg = garlic.WrapSingleMessage (msg); + memcpy (buf + size, msg->GetBuffer (), msg->GetLength ()); + size += msg->GetLength (); } - memcpy (buf + size, msg->GetBuffer (), msg->GetLength ()); - size += msg->GetLength (); // fill clove uint64_t ts = i2p::util::GetMillisecondsSinceEpoch () + 8000; // 8 sec uint32_t cloveID; @@ -392,21 +354,103 @@ namespace garlic return size; } - GarlicDestination::GarlicDestination (): m_NumTags (32) // 32 tags by default + ElGamalAESSession::UnconfirmedTags * ElGamalAESSession::GenerateSessionTags () + { + auto tags = new UnconfirmedTags (m_NumTags); + tags->tagsCreationTime = i2p::util::GetSecondsSinceEpoch (); + for (int i = 0; i < m_NumTags; i++) + { + RAND_bytes (tags->sessionTags[i], 32); + tags->sessionTags[i].creationTime = tags->tagsCreationTime; + } + return tags; + } + + bool ElGamalAESSession::MessageConfirmed (uint32_t msgID) + { + TagsConfirmed (msgID); + if (!GarlicRoutingSession::MessageConfirmed (msgID)) + CleanupExpiredTags (); + return true; + } + + void ElGamalAESSession::TagsConfirmed (uint32_t msgID) + { + uint32_t ts = i2p::util::GetSecondsSinceEpoch (); + auto it = m_UnconfirmedTagsMsgs.find (msgID); + if (it != m_UnconfirmedTagsMsgs.end ()) + { + auto& tags = it->second; + if (ts < tags->tagsCreationTime + OUTGOING_TAGS_EXPIRATION_TIMEOUT) + { + for (int i = 0; i < tags->numTags; i++) + m_SessionTags.push_back (tags->sessionTags[i]); + } + m_UnconfirmedTagsMsgs.erase (it); + } + } + + bool ElGamalAESSession::CleanupExpiredTags () + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + for (auto it = m_SessionTags.begin (); it != m_SessionTags.end ();) + { + if (ts >= it->creationTime + OUTGOING_TAGS_EXPIRATION_TIMEOUT) + it = m_SessionTags.erase (it); + else + ++it; + } + CleanupUnconfirmedTags (); + CleanupUnconfirmedLeaseSet (ts); + return !m_SessionTags.empty () || !m_UnconfirmedTagsMsgs.empty (); + } + + bool ElGamalAESSession::CleanupUnconfirmedTags () + { + bool ret = false; + uint32_t ts = i2p::util::GetSecondsSinceEpoch (); + // delete expired unconfirmed tags + for (auto it = m_UnconfirmedTagsMsgs.begin (); it != m_UnconfirmedTagsMsgs.end ();) + { + if (ts >= it->second->tagsCreationTime + OUTGOING_TAGS_CONFIRMATION_TIMEOUT) + { + if (GetOwner ()) + GetOwner ()->RemoveDeliveryStatusSession (it->first); + it = m_UnconfirmedTagsMsgs.erase (it); + ret = true; + } + else + ++it; + } + return ret; + } + + GarlicDestination::GarlicDestination (): m_NumTags (32), // 32 tags by default + m_PayloadBuffer (nullptr), m_LastIncomingSessionTimestamp (0), + m_NumRatchetInboundTags (0) // 0 means standard { - m_Ctx = BN_CTX_new (); } GarlicDestination::~GarlicDestination () { - BN_CTX_free (m_Ctx); + if (m_PayloadBuffer) + delete[] m_PayloadBuffer; } void GarlicDestination::CleanUp () { + for (auto it: m_Sessions) + it.second->SetOwner (nullptr); m_Sessions.clear (); m_DeliveryStatusSessions.clear (); m_Tags.clear (); + for (auto it: m_ECIESx25519Sessions) + { + it.second->Terminate (); + it.second->SetOwner (nullptr); + } + m_ECIESx25519Sessions.clear (); + m_ECIESx25519Tags.clear (); } void GarlicDestination::AddSessionKey (const uint8_t * key, const uint8_t * tag) { @@ -417,55 +461,115 @@ namespace garlic } } + void GarlicDestination::AddECIESx25519Key (const uint8_t * key, const uint8_t * tag) + { + uint64_t t; + memcpy (&t, tag, 8); + AddECIESx25519Key (key, t); + } + + void GarlicDestination::AddECIESx25519Key (const uint8_t * key, uint64_t tag) + { + auto tagset = std::make_shared(this, key); + m_ECIESx25519Tags.emplace (tag, ECIESX25519AEADRatchetIndexTagset{0, tagset}); + } + bool GarlicDestination::SubmitSessionKey (const uint8_t * key, const uint8_t * tag) { AddSessionKey (key, tag); return true; } + void GarlicDestination::SubmitECIESx25519Key (const uint8_t * key, uint64_t tag) + { + AddECIESx25519Key (key, tag); + } + void GarlicDestination::HandleGarlicMessage (std::shared_ptr msg) { uint8_t * buf = msg->GetPayload (); uint32_t length = bufbe32toh (buf); if (length > msg->GetLength ()) { - LogPrint (eLogWarning, "Garlic: message length ", length, " exceeds I2NP message length ", msg->GetLength ()); + LogPrint (eLogWarning, "Garlic: Message length ", length, " exceeds I2NP message length ", msg->GetLength ()); return; } + auto mod = length & 0x0f; // %16 buf += 4; // length - auto it = m_Tags.find (SessionTag(buf)); - if (it != m_Tags.end ()) + + bool found = false; + bool supportsRatchets = SupportsRatchets (); + if (supportsRatchets) + // try ECIESx25519 tag + found = HandleECIESx25519TagMessage (buf, length); + if (!found) { - // tag found. Use AES - auto decryption = it->second; - m_Tags.erase (it); // tag might be used only once - if (length >= 32) + auto it = !mod ? m_Tags.find (SessionTag(buf)) : m_Tags.end (); // AES block is multiple of 16 + // AES tag might be used even if encryption type is not ElGamal/AES + if (it != m_Tags.end ()) // try AES tag { - uint8_t iv[32]; // IV is first 16 bytes - SHA256(buf, 32, iv); - decryption->SetIV (iv); - decryption->Decrypt (buf + 32, length - 32, buf + 32); - HandleAESBlock (buf + 32, length - 32, decryption, msg->from); + // tag found. Use AES + auto decryption = it->second; + m_Tags.erase (it); // tag might be used only once + if (length >= 32) + { + uint8_t iv[32]; // IV is first 16 bytes + SHA256(buf, 32, iv); + decryption->Decrypt (buf + 32, length - 32, iv, buf + 32); + HandleAESBlock (buf + 32, length - 32, decryption, msg->from); + found = true; + } + else + LogPrint (eLogWarning, "Garlic: Message length ", length, " is less than 32 bytes"); + } + if (!found) // assume new session + { + // AES tag not found. Handle depending on encryption type + // try ElGamal/AES first if leading block is 514 + ElGamalBlock elGamal; + if (mod == 2 && length >= 514 && SupportsEncryptionType (i2p::data::CRYPTO_KEY_TYPE_ELGAMAL) && + Decrypt (buf, (uint8_t *)&elGamal, i2p::data::CRYPTO_KEY_TYPE_ELGAMAL)) + { + auto decryption = std::make_shared(elGamal.sessionKey); + uint8_t iv[32]; // IV is first 16 bytes + SHA256(elGamal.preIV, 32, iv); + decryption->Decrypt(buf + 514, length - 514, iv, buf + 514); + HandleAESBlock (buf + 514, length - 514, decryption, msg->from); + } + else if (supportsRatchets) + { + // otherwise ECIESx25519 + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (ts > m_LastIncomingSessionTimestamp + INCOMING_SESSIONS_MINIMAL_INTERVAL) + { + auto session = std::make_shared (this, false); // incoming + if (session->HandleNextMessage (buf, length, nullptr, 0)) + m_LastIncomingSessionTimestamp = ts; + else + LogPrint (eLogError, "Garlic: Can't handle ECIES-X25519-AEAD-Ratchet message"); + } + else + LogPrint (eLogWarning, "Garlic: Incoming sessions come too often"); + } + else + LogPrint (eLogError, "Garlic: Failed to decrypt message"); } - else - LogPrint (eLogWarning, "Garlic: message length ", length, " is less than 32 bytes"); } - else + } + + bool GarlicDestination::HandleECIESx25519TagMessage (uint8_t * buf, size_t len) + { + uint64_t tag; + memcpy (&tag, buf, 8); + auto it = m_ECIESx25519Tags.find (tag); + if (it != m_ECIESx25519Tags.end ()) { - // tag not found. Use ElGamal - ElGamalBlock elGamal; - if (length >= 514 && Decrypt (buf, (uint8_t *)&elGamal, m_Ctx)) - { - auto decryption = std::make_shared(elGamal.sessionKey); - uint8_t iv[32]; // IV is first 16 bytes - SHA256(elGamal.preIV, 32, iv); - decryption->SetIV (iv); - decryption->Decrypt(buf + 514, length - 514, buf + 514); - HandleAESBlock (buf + 514, length - 514, decryption, msg->from); - } - else - LogPrint (eLogError, "Garlic: Failed to decrypt message"); + if (!it->second.tagset || !it->second.tagset->HandleNextMessage (buf, len, it->second.index)) + LogPrint (eLogError, "Garlic: Can't handle ECIES-X25519-AEAD-Ratchet message"); + m_ECIESx25519Tags.erase (it); + return true; } + return false; } void GarlicDestination::HandleAESBlock (uint8_t * buf, size_t len, std::shared_ptr decryption, @@ -504,7 +608,7 @@ namespace garlic SHA256 (buf, payloadSize, digest); if (memcmp (payloadHash, digest, 32)) // payload hash doesn't match { - LogPrint (eLogError, "Garlic: wrong payload hash"); + LogPrint (eLogError, "Garlic: Wrong payload hash"); return; } HandleGarlicPayload (buf, payloadSize, from); @@ -514,7 +618,7 @@ namespace garlic { if (len < 1) { - LogPrint (eLogError, "Garlic: payload is too short"); + LogPrint (eLogError, "Garlic: Payload is too short"); return; } int numCloves = buf[0]; @@ -529,7 +633,7 @@ namespace garlic if (flag & 0x80) // encrypted? { // TODO: implement - LogPrint (eLogWarning, "Garlic: clove encrypted"); + LogPrint (eLogWarning, "Garlic: Clove encrypted"); buf += 32; } ptrdiff_t offset = buf - buf1; @@ -537,35 +641,35 @@ namespace garlic switch (deliveryType) { case eGarlicDeliveryTypeLocal: - LogPrint (eLogDebug, "Garlic: type local"); + LogPrint (eLogDebug, "Garlic: Type local"); if (offset > (int)len) { - LogPrint (eLogError, "Garlic: message is too short"); + LogPrint (eLogError, "Garlic: Message is too short"); break; } - HandleI2NPMessage (buf, len - offset, from); + HandleI2NPMessage (buf, len - offset); break; case eGarlicDeliveryTypeDestination: - LogPrint (eLogDebug, "Garlic: type destination"); + LogPrint (eLogDebug, "Garlic: Type destination"); buf += 32; // destination. check it later or for multiple destinations offset = buf - buf1; if (offset > (int)len) { - LogPrint (eLogError, "Garlic: message is too short"); + LogPrint (eLogError, "Garlic: Message is too short"); break; } - HandleI2NPMessage (buf, len - offset, from); + HandleI2NPMessage (buf, len - offset); break; case eGarlicDeliveryTypeTunnel: { - LogPrint (eLogDebug, "Garlic: type tunnel"); + LogPrint (eLogDebug, "Garlic: Type tunnel"); // gwHash and gwTunnel sequence is reverted uint8_t * gwHash = buf; buf += 32; offset = buf - buf1; if (offset + 4 > (int)len) { - LogPrint (eLogError, "Garlic: message is too short"); + LogPrint (eLogError, "Garlic: Message is too short"); break; } uint32_t gwTunnel = bufbe32toh (buf); @@ -579,7 +683,7 @@ namespace garlic else LogPrint (eLogError, "Garlic: Tunnel pool is not set for inbound tunnel"); if (tunnel) // we have sent it through an outbound tunnel - tunnel->SendTunnelDataMsg (gwHash, gwTunnel, msg); + tunnel->SendTunnelDataMsgTo (gwHash, gwTunnel, msg); else LogPrint (eLogWarning, "Garlic: No outbound tunnels available for garlic clove"); } @@ -596,63 +700,103 @@ namespace garlic { if (offset > (int)len) { - LogPrint (eLogError, "Garlic: message is too short"); + LogPrint (eLogError, "Garlic: Message is too short"); break; } i2p::transport::transports.SendMessage (ident, CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len - offset))); } else - LogPrint (eLogWarning, "Garlic: type router for inbound tunnels not supported"); + LogPrint (eLogWarning, "Garlic: Type router for inbound tunnels not supported"); break; } default: - LogPrint (eLogWarning, "Garlic: unknown delivery type ", (int)deliveryType); + LogPrint (eLogWarning, "Garlic: Unknown delivery type ", (int)deliveryType); } if (offset > (int)len) { - LogPrint (eLogError, "Garlic: message is too short"); + LogPrint (eLogError, "Garlic: Message is too short"); break; } - buf += GetI2NPMessageLength (buf, len - offset); // I2NP + buf += GetI2NPMessageLength (buf, len - offset); // I2NP buf += 4; // CloveID buf += 8; // Date buf += 3; // Certificate offset = buf - buf1; if (offset > (int)len) { - LogPrint (eLogError, "Garlic: clove is too long"); + LogPrint (eLogError, "Garlic: Clove is too long"); break; } len -= offset; } } - std::shared_ptr GarlicDestination::WrapMessage (std::shared_ptr destination, - std::shared_ptr msg, bool attachLeaseSet) + std::shared_ptr GarlicDestination::WrapMessageForRouter (std::shared_ptr router, + std::shared_ptr msg) { - auto session = GetRoutingSession (destination, attachLeaseSet); - return session->WrapSingleMessage (msg); + if (router->GetEncryptionType () == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + return WrapECIESX25519MessageForRouter (msg, router->GetIdentity ()->GetEncryptionPublicKey ()); + else + { + auto session = GetRoutingSession (router, false); + return session->WrapSingleMessage (msg); + } } std::shared_ptr GarlicDestination::GetRoutingSession ( - std::shared_ptr destination, bool attachLeaseSet) + std::shared_ptr destination, bool attachLeaseSet, + bool requestNewIfNotFound) { - GarlicRoutingSessionPtr session; + if (destination->GetEncryptionType () >= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) { - std::unique_lock l(m_SessionsMutex); - auto it = m_Sessions.find (destination->GetIdentHash ()); - if (it != m_Sessions.end ()) - session = it->second; + if (SupportsEncryptionType (destination->GetEncryptionType ())) + { + ECIESX25519AEADRatchetSessionPtr session; + uint8_t staticKey[32]; + destination->Encrypt (nullptr, staticKey); // we are supposed to get static key + auto it = m_ECIESx25519Sessions.find (staticKey); + if (it != m_ECIESx25519Sessions.end ()) + { + session = it->second; + if (session->IsInactive (i2p::util::GetSecondsSinceEpoch ())) + { + LogPrint (eLogDebug, "Garlic: Session restarted"); + requestNewIfNotFound = true; // it's not a new session + session = nullptr; + } + } + if (!session && requestNewIfNotFound) + { + session = std::make_shared (this, true); + session->SetRemoteStaticKey (destination->GetEncryptionType (), staticKey); + } + if (session && destination->IsDestination ()) + session->SetDestination (destination->GetIdentHash ()); // NS or NSR + return session; + } + else + LogPrint (eLogError, "Garlic: Non-supported encryption type ", destination->GetEncryptionType ()); } - if (!session) + else { - session = std::make_shared (this, destination, - attachLeaseSet ? m_NumTags : 4, attachLeaseSet); // specified num tags for connections and 4 for LS requests - std::unique_lock l(m_SessionsMutex); - m_Sessions[destination->GetIdentHash ()] = session; + ElGamalAESSessionPtr session; + { + std::unique_lock l(m_SessionsMutex); + auto it = m_Sessions.find (destination->GetIdentHash ()); + if (it != m_Sessions.end ()) + session = it->second; + } + if (!session) + { + session = std::make_shared (this, destination, + attachLeaseSet ? m_NumTags : 4, attachLeaseSet); // specified num tags for connections and 4 for LS requests + std::unique_lock l(m_SessionsMutex); + m_Sessions[destination->GetIdentHash ()] = session; + } + return session; } - return session; + return nullptr; } void GarlicDestination::CleanupExpiredTags () @@ -681,7 +825,7 @@ namespace garlic it->second->GetSharedRoutingPath (); // delete shared path if necessary if (!it->second->CleanupExpiredTags ()) { - LogPrint (eLogInfo, "Routing session to ", it->first.ToBase32 (), " deleted"); + LogPrint (eLogInfo, "Garlic: Routing session to ", it->first.ToBase32 (), " deleted"); it->second->SetOwner (nullptr); it = m_Sessions.erase (it); } @@ -700,6 +844,40 @@ namespace garlic ++it; } } + // ECIESx25519 + for (auto it = m_ECIESx25519Sessions.begin (); it != m_ECIESx25519Sessions.end ();) + { + if (it->second->CheckExpired (ts)) + { + it->second->Terminate (); + it = m_ECIESx25519Sessions.erase (it); + } + else + ++it; + } + + numExpiredTags = 0; + for (auto it = m_ECIESx25519Tags.begin (); it != m_ECIESx25519Tags.end ();) + { + if (it->second.tagset->IsExpired (ts) || it->second.tagset->IsIndexExpired (it->second.index)) + { + it->second.tagset->DeleteSymmKey (it->second.index); + it = m_ECIESx25519Tags.erase (it); + numExpiredTags++; + } + else + { + if (it->second.tagset->IsSessionTerminated ()) + { + it = m_ECIESx25519Tags.erase (it); + numExpiredTags++; + } + else + ++it; + } + } + if (numExpiredTags > 0) + LogPrint (eLogDebug, "Garlic: ", numExpiredTags, " ECIESx25519 tags expired for ", GetIdentHash().ToBase64 ()); } void GarlicDestination::RemoveDeliveryStatusSession (uint32_t msgID) @@ -714,9 +892,8 @@ namespace garlic m_DeliveryStatusSessions[msgID] = session; } - void GarlicDestination::HandleDeliveryStatusMessage (std::shared_ptr msg) + void GarlicDestination::HandleDeliveryStatusMessage (uint32_t msgID) { - uint32_t msgID = bufbe32toh (msg->GetPayload ()); GarlicRoutingSessionPtr session; { std::unique_lock l(m_DeliveryStatusSessionsMutex); @@ -730,14 +907,18 @@ namespace garlic if (session) { session->MessageConfirmed (msgID); - LogPrint (eLogDebug, "Garlic: message ", msgID, " acknowledged"); + LogPrint (eLogDebug, "Garlic: Message ", msgID, " acknowledged"); } } - void GarlicDestination::SetLeaseSetUpdated () + void GarlicDestination::SetLeaseSetUpdated (bool post) { - std::unique_lock l(m_SessionsMutex); - for (auto& it: m_Sessions) + { + std::unique_lock l(m_SessionsMutex); + for (auto& it: m_Sessions) + it.second->SetLeaseSetUpdated (); + } + for (auto& it: m_ECIESx25519Sessions) it.second->SetLeaseSetUpdated (); } @@ -748,7 +929,8 @@ namespace garlic void GarlicDestination::ProcessDeliveryStatusMessage (std::shared_ptr msg) { - HandleDeliveryStatusMessage (msg); + uint32_t msgID = bufbe32toh (msg->GetPayload () + DELIVERY_STATUS_MSGID_OFFSET); + HandleDeliveryStatusMessage (msgID); } void GarlicDestination::SaveTags () @@ -806,7 +988,7 @@ namespace garlic m_Tags.insert (std::make_pair (SessionTag (tag, ts), decryption)); } if (!m_Tags.empty ()) - LogPrint (eLogInfo, m_Tags.size (), " loaded for ", ident); + LogPrint (eLogInfo, "Garlic: ", m_Tags.size (), " tags loaded for ", ident); } } i2p::fs::Remove (path); @@ -817,9 +999,127 @@ namespace garlic std::vector files; i2p::fs::ReadDir (i2p::fs::DataDirPath("tags"), files); uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - for (auto it: files) + for (auto it: files) if (ts >= i2p::fs::GetLastUpdateTime (it) + INCOMING_TAGS_EXPIRATION_TIMEOUT) - i2p::fs::Remove (it); + i2p::fs::Remove (it); } + + void GarlicDestination::HandleECIESx25519GarlicClove (const uint8_t * buf, size_t len, + ECIESX25519AEADRatchetSession * from) + { + const uint8_t * buf1 = buf; + uint8_t flag = buf[0]; buf++; // flag + GarlicDeliveryType deliveryType = (GarlicDeliveryType)((flag >> 5) & 0x03); + switch (deliveryType) + { + case eGarlicDeliveryTypeDestination: + LogPrint (eLogDebug, "Garlic: Type destination"); + buf += 32; // TODO: check destination + [[fallthrough]]; + // no break here + case eGarlicDeliveryTypeLocal: + { + LogPrint (eLogDebug, "Garlic: Type local"); + I2NPMessageType typeID = (I2NPMessageType)(buf[0]); buf++; // typeid + int32_t msgID = bufbe32toh (buf); buf += 4; // msgID + buf += 4; // expiration + ptrdiff_t offset = buf - buf1; + if (offset <= (int)len) + HandleCloveI2NPMessage (typeID, buf, len - offset, msgID, from); + else + LogPrint (eLogError, "Garlic: Clove is too long"); + break; + } + case eGarlicDeliveryTypeTunnel: + { + LogPrint (eLogDebug, "Garlic: Type tunnel"); + // gwHash and gwTunnel sequence is reverted + const uint8_t * gwHash = buf; + buf += 32; + ptrdiff_t offset = buf - buf1; + if (offset + 13 > (int)len) + { + LogPrint (eLogError, "Garlic: Message is too short"); + break; + } + uint32_t gwTunnel = bufbe32toh (buf); buf += 4; + I2NPMessageType typeID = (I2NPMessageType)(buf[0]); buf++; // typeid + uint32_t msgID = bufbe32toh (buf); buf += 4; // msgID + buf += 4; // expiration + offset += 13; + if (GetTunnelPool ()) + { + auto tunnel = GetTunnelPool ()->GetNextOutboundTunnel (); + if (tunnel) + tunnel->SendTunnelDataMsgTo (gwHash, gwTunnel, CreateI2NPMessage (typeID, buf, len - offset, msgID)); + else + LogPrint (eLogWarning, "Garlic: No outbound tunnels available for garlic clove"); + } + else + LogPrint (eLogError, "Garlic: Tunnel pool is not set for inbound tunnel"); + break; + } + default: + LogPrint (eLogWarning, "Garlic: Unexpected delivery type ", (int)deliveryType); + } + } + + uint64_t GarlicDestination::AddECIESx25519SessionNextTag (ReceiveRatchetTagSetPtr tagset) + { + auto index = tagset->GetNextIndex (); + uint64_t tag = tagset->GetNextSessionTag (); + if (tag) + m_ECIESx25519Tags.emplace (tag, ECIESX25519AEADRatchetIndexTagset{index, tagset}); + return tag; + } + + void GarlicDestination::AddECIESx25519Session (const uint8_t * staticKey, ECIESX25519AEADRatchetSessionPtr session) + { + i2p::data::Tag<32> staticKeyTag (staticKey); + auto it = m_ECIESx25519Sessions.find (staticKeyTag); + if (it != m_ECIESx25519Sessions.end ()) + { + if (it->second->CanBeRestarted (i2p::util::GetSecondsSinceEpoch ())) + { + it->second->Terminate (); // detach + m_ECIESx25519Sessions.erase (it); + } + else + { + LogPrint (eLogInfo, "Garlic: ECIESx25519 session with static key ", staticKeyTag.ToBase64 (), " already exists"); + return; + } + } + m_ECIESx25519Sessions.emplace (staticKeyTag, session); + } + + void GarlicDestination::RemoveECIESx25519Session (const uint8_t * staticKey) + { + auto it = m_ECIESx25519Sessions.find (staticKey); + if (it != m_ECIESx25519Sessions.end ()) + { + it->second->Terminate (); + m_ECIESx25519Sessions.erase (it); + } + } + + uint8_t * GarlicDestination::GetPayloadBuffer () + { + if (!m_PayloadBuffer) + m_PayloadBuffer = new uint8_t[I2NP_MAX_MESSAGE_SIZE]; + return m_PayloadBuffer; + } + + bool GarlicDestination::AEADChaCha20Poly1305Encrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return m_Encryptor.Encrypt (msg, msgLen, ad, adLen, key, nonce, buf, len); + } + + bool GarlicDestination::AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return m_Decryptor.Decrypt (msg, msgLen, ad, adLen, key, nonce, buf, len); + } } } diff --git a/libi2pd/Garlic.h b/libi2pd/Garlic.h index c5236c90..25106c45 100644 --- a/libi2pd/Garlic.h +++ b/libi2pd/Garlic.h @@ -1,8 +1,16 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef GARLIC_H__ #define GARLIC_H__ #include -#include +#include #include #include #include @@ -42,9 +50,9 @@ namespace garlic const int INCOMING_TAGS_EXPIRATION_TIMEOUT = 960; // 16 minutes const int OUTGOING_TAGS_EXPIRATION_TIMEOUT = 720; // 12 minutes const int OUTGOING_TAGS_CONFIRMATION_TIMEOUT = 10; // 10 seconds - const int LEASET_CONFIRMATION_TIMEOUT = 4000; // in milliseconds - const int ROUTING_PATH_EXPIRATION_TIMEOUT = 30; // 30 seconds - const int ROUTING_PATH_MAX_NUM_TIMES_USED = 100; // how many times might be used + const int LEASESET_CONFIRMATION_TIMEOUT = 4000; // in milliseconds + const int ROUTING_PATH_EXPIRATION_TIMEOUT = 120; // in seconds + const int INCOMING_SESSIONS_MINIMAL_INTERVAL = 200; // in milliseconds struct SessionTag: public i2p::data::Tag<32> { @@ -81,12 +89,13 @@ namespace garlic std::shared_ptr remoteLease; int rtt; // RTT uint32_t updateTime; // seconds since epoch - int numTimesUsed; }; class GarlicDestination; - class GarlicRoutingSession: public std::enable_shared_from_this + class GarlicRoutingSession { + protected: + enum LeaseSetUpdateStatus { eLeaseSetUpToDate = 0, @@ -95,27 +104,20 @@ namespace garlic eLeaseSetDoNotSend }; - struct UnconfirmedTags - { - UnconfirmedTags (int n): numTags (n), tagsCreationTime (0) { sessionTags = new SessionTag[numTags]; }; - ~UnconfirmedTags () { delete[] sessionTags; }; - uint32_t msgID; - int numTags; - SessionTag * sessionTags; - uint32_t tagsCreationTime; - }; - public: - GarlicRoutingSession (GarlicDestination * owner, std::shared_ptr destination, - int numTags, bool attachLeaseSet); - GarlicRoutingSession (const uint8_t * sessionKey, const SessionTag& sessionTag); // one time encryption - ~GarlicRoutingSession (); - std::shared_ptr WrapSingleMessage (std::shared_ptr msg); - void MessageConfirmed (uint32_t msgID); - bool CleanupExpiredTags (); // returns true if something left - bool CleanupUnconfirmedTags (); // returns true if something has been deleted - + GarlicRoutingSession (GarlicDestination * owner, bool attachLeaseSet); + GarlicRoutingSession (); + virtual ~GarlicRoutingSession (); + virtual std::shared_ptr WrapSingleMessage (std::shared_ptr msg) = 0; + virtual bool CleanupUnconfirmedTags () { return false; }; // for I2CP, override in ElGamalAESSession and ECIESX25519AEADRatchetSession + virtual bool MessageConfirmed (uint32_t msgID); + virtual bool IsRatchets () const { return false; }; + virtual bool IsReadyToSend () const { return true; }; + virtual bool IsTerminated () const { return !GetOwner (); }; + virtual uint64_t GetLastActivityTimestamp () const { return 0; }; // non-zero for rathets only + virtual void SetAckRequestInterval (int interval) {}; // in milliseconds, override in ECIESX25519AEADRatchetSession + void SetLeaseSetUpdated () { if (m_LeaseSetUpdateStatus != eLeaseSetDoNotSend) m_LeaseSetUpdateStatus = eLeaseSetUpdated; @@ -123,13 +125,67 @@ namespace garlic bool IsLeaseSetNonConfirmed () const { return m_LeaseSetUpdateStatus == eLeaseSetSubmitted; }; bool IsLeaseSetUpdated () const { return m_LeaseSetUpdateStatus == eLeaseSetUpdated; }; uint64_t GetLeaseSetSubmissionTime () const { return m_LeaseSetSubmissionTime; } + void CleanupUnconfirmedLeaseSet (uint64_t ts); std::shared_ptr GetSharedRoutingPath (); void SetSharedRoutingPath (std::shared_ptr path); - const GarlicDestination * GetOwner () const { return m_Owner; } + GarlicDestination * GetOwner () const { return m_Owner; } void SetOwner (GarlicDestination * owner) { m_Owner = owner; } + protected: + + LeaseSetUpdateStatus GetLeaseSetUpdateStatus () const { return m_LeaseSetUpdateStatus; } + void SetLeaseSetUpdateStatus (LeaseSetUpdateStatus status) { m_LeaseSetUpdateStatus = status; } + uint32_t GetLeaseSetUpdateMsgID () const { return m_LeaseSetUpdateMsgID; } + void SetLeaseSetUpdateMsgID (uint32_t msgID) { m_LeaseSetUpdateMsgID = msgID; } + void SetLeaseSetSubmissionTime (uint64_t ts) { m_LeaseSetSubmissionTime = ts; } + + std::shared_ptr CreateEncryptedDeliveryStatusMsg (uint32_t msgID); + + private: + + GarlicDestination * m_Owner; + + LeaseSetUpdateStatus m_LeaseSetUpdateStatus; + uint32_t m_LeaseSetUpdateMsgID; + uint64_t m_LeaseSetSubmissionTime; // in milliseconds + + std::shared_ptr m_SharedRoutingPath; + + public: + + // for HTTP only + virtual size_t GetNumOutgoingTags () const { return 0; }; + }; + //using GarlicRoutingSessionPtr = std::shared_ptr; + typedef std::shared_ptr GarlicRoutingSessionPtr; // TODO: replace to using after switch to 4.8 + + class ElGamalAESSession: public GarlicRoutingSession, public std::enable_shared_from_this + { + struct UnconfirmedTags + { + UnconfirmedTags (int n): numTags (n), tagsCreationTime (0) { sessionTags = new SessionTag[numTags]; }; + ~UnconfirmedTags () { delete[] sessionTags; }; + uint32_t msgID; + int numTags; + SessionTag * sessionTags; + uint32_t tagsCreationTime; + }; + + public: + + ElGamalAESSession (GarlicDestination * owner, std::shared_ptr destination, + int numTags, bool attachLeaseSet); + ElGamalAESSession (const uint8_t * sessionKey, const SessionTag& sessionTag); // one time encryption + ~ElGamalAESSession () {}; + + std::shared_ptr WrapSingleMessage (std::shared_ptr msg); + + bool MessageConfirmed (uint32_t msgID); + bool CleanupExpiredTags (); // returns true if something left + bool CleanupUnconfirmedTags (); // returns true if something has been deleted + private: size_t CreateAESBlock (uint8_t * buf, std::shared_ptr msg); @@ -142,7 +198,6 @@ namespace garlic private: - GarlicDestination * m_Owner; std::shared_ptr m_Destination; i2p::crypto::AESKey m_SessionKey; @@ -150,20 +205,25 @@ namespace garlic int m_NumTags; std::map > m_UnconfirmedTagsMsgs; // msgID->tags - LeaseSetUpdateStatus m_LeaseSetUpdateStatus; - uint32_t m_LeaseSetUpdateMsgID; - uint64_t m_LeaseSetSubmissionTime; // in milliseconds - i2p::crypto::CBCEncryption m_Encryption; - - std::shared_ptr m_SharedRoutingPath; + i2p::data::Tag<16> m_IV; public: + // for HTTP only size_t GetNumOutgoingTags () const { return m_SessionTags.size (); }; }; - //using GarlicRoutingSessionPtr = std::shared_ptr; - typedef std::shared_ptr GarlicRoutingSessionPtr; // TODO: replace to using after switch to 4.8 + typedef std::shared_ptr ElGamalAESSessionPtr; + + class ECIESX25519AEADRatchetSession; + typedef std::shared_ptr ECIESX25519AEADRatchetSessionPtr; + class ReceiveRatchetTagSet; + typedef std::shared_ptr ReceiveRatchetTagSetPtr; + struct ECIESX25519AEADRatchetIndexTagset + { + int index; + ReceiveRatchetTagSetPtr tagset; // null if used + }; class GarlicDestination: public i2p::data::LocalDestination { @@ -174,56 +234,90 @@ namespace garlic void CleanUp (); void SetNumTags (int numTags) { m_NumTags = numTags; }; - std::shared_ptr GetRoutingSession (std::shared_ptr destination, bool attachLeaseSet); + int GetNumTags () const { return m_NumTags; }; + void SetNumRatchetInboundTags (int numTags) { m_NumRatchetInboundTags = numTags; }; + int GetNumRatchetInboundTags () const { return m_NumRatchetInboundTags; }; + std::shared_ptr GetRoutingSession (std::shared_ptr destination, + bool attachLeaseSet, bool requestNewIfNotFound = true); void CleanupExpiredTags (); void RemoveDeliveryStatusSession (uint32_t msgID); - std::shared_ptr WrapMessage (std::shared_ptr destination, - std::shared_ptr msg, bool attachLeaseSet = false); + std::shared_ptr WrapMessageForRouter (std::shared_ptr router, + std::shared_ptr msg); + + bool AEADChaCha20Poly1305Encrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); + bool AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); void AddSessionKey (const uint8_t * key, const uint8_t * tag); // one tag + void AddECIESx25519Key (const uint8_t * key, uint64_t tag); // one tag virtual bool SubmitSessionKey (const uint8_t * key, const uint8_t * tag); // from different thread + virtual void SubmitECIESx25519Key (const uint8_t * key, uint64_t tag); // from different thread void DeliveryStatusSent (GarlicRoutingSessionPtr session, uint32_t msgID); + uint64_t AddECIESx25519SessionNextTag (ReceiveRatchetTagSetPtr tagset); + void AddECIESx25519Session (const uint8_t * staticKey, ECIESX25519AEADRatchetSessionPtr session); + void RemoveECIESx25519Session (const uint8_t * staticKey); + void HandleECIESx25519GarlicClove (const uint8_t * buf, size_t len, ECIESX25519AEADRatchetSession * from); + uint8_t * GetPayloadBuffer (); virtual void ProcessGarlicMessage (std::shared_ptr msg); virtual void ProcessDeliveryStatusMessage (std::shared_ptr msg); - virtual void SetLeaseSetUpdated (); + virtual void SetLeaseSetUpdated (bool post = false); virtual std::shared_ptr GetLeaseSet () = 0; // TODO virtual std::shared_ptr GetTunnelPool () const = 0; - virtual void HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from) = 0; + virtual i2p::data::CryptoKeyType GetRatchetsHighestCryptoType () const + { + return GetIdentity ()->GetCryptoKeyType () >= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD ? GetIdentity ()->GetCryptoKeyType () : 0; + } protected: + void AddECIESx25519Key (const uint8_t * key, const uint8_t * tag); // one tag + bool HandleECIESx25519TagMessage (uint8_t * buf, size_t len); // return true if found + virtual void HandleI2NPMessage (const uint8_t * buf, size_t len) = 0; // called from clove only + virtual bool HandleCloveI2NPMessage (I2NPMessageType typeID, const uint8_t * payload, + size_t len, uint32_t msgID, ECIESX25519AEADRatchetSession * from) = 0; void HandleGarlicMessage (std::shared_ptr msg); - void HandleDeliveryStatusMessage (std::shared_ptr msg); + void HandleDeliveryStatusMessage (uint32_t msgID); void SaveTags (); void LoadTags (); - + private: + bool SupportsRatchets () const { return GetRatchetsHighestCryptoType () > 0; } void HandleAESBlock (uint8_t * buf, size_t len, std::shared_ptr decryption, std::shared_ptr from); void HandleGarlicPayload (uint8_t * buf, size_t len, std::shared_ptr from); private: - BN_CTX * m_Ctx; // incoming // outgoing sessions int m_NumTags; std::mutex m_SessionsMutex; - std::map m_Sessions; + std::unordered_map m_Sessions; + std::unordered_map, ECIESX25519AEADRatchetSessionPtr> m_ECIESx25519Sessions; // static key -> session + uint8_t * m_PayloadBuffer; // for ECIESX25519AEADRatchet + uint64_t m_LastIncomingSessionTimestamp; // in milliseconds // incoming - std::map > m_Tags; + int m_NumRatchetInboundTags; + std::unordered_map, std::hash > > m_Tags; + std::unordered_map m_ECIESx25519Tags; // session tag -> session // DeliveryStatus std::mutex m_DeliveryStatusSessionsMutex; - std::map m_DeliveryStatusSessions; // msgID -> session - + std::unordered_map m_DeliveryStatusSessions; // msgID -> session + // encryption + i2p::crypto::AEADChaCha20Poly1305Encryptor m_Encryptor; + i2p::crypto::AEADChaCha20Poly1305Decryptor m_Decryptor; + public: // for HTTP only size_t GetNumIncomingTags () const { return m_Tags.size (); } + size_t GetNumIncomingECIESx25519Tags () const { return m_ECIESx25519Tags.size (); } const decltype(m_Sessions)& GetSessions () const { return m_Sessions; }; + const decltype(m_ECIESx25519Sessions)& GetECIESx25519Sessions () const { return m_ECIESx25519Sessions; } }; void CleanUpTagsFiles (); diff --git a/libi2pd/Gost.cpp b/libi2pd/Gost.cpp index c401f8be..2dafc9ae 100644 --- a/libi2pd/Gost.cpp +++ b/libi2pd/Gost.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -88,7 +96,7 @@ namespace crypto EC_POINT * C = EC_POINT_new (m_Group); EC_POINT_mul (m_Group, C, z1, pub, z2, ctx); // z1*P + z2*pub BIGNUM * x = BN_CTX_get (ctx); - GetXY (C, x, nullptr); // Cx + GetXY (C, x, nullptr); // Cx BN_mod (x, x, q, ctx); // Cx % q bool ret = !BN_cmp (x, r); // Cx = r ? EC_POINT_free (C); @@ -103,8 +111,8 @@ namespace crypto BN_CTX * ctx = BN_CTX_new (); BN_CTX_start (ctx); EC_POINT * C = EC_POINT_new (m_Group); // C = k*P = (rx, ry) - EC_POINT * Q = nullptr; - if (EC_POINT_set_compressed_coordinates_GFp (m_Group, C, r, isNegativeY ? 1 : 0, ctx)) + EC_POINT * Q = nullptr; + if (EC_POINT_set_compressed_coordinates_GFp (m_Group, C, r, isNegativeY ? 1 : 0, ctx)) { EC_POINT * S = EC_POINT_new (m_Group); // S = s*P EC_POINT_mul (m_Group, S, s, nullptr, nullptr, ctx); diff --git a/libi2pd/Gost.h b/libi2pd/Gost.h index 30386104..0a79c30b 100644 --- a/libi2pd/Gost.h +++ b/libi2pd/Gost.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef GOST_H__ #define GOST_H__ @@ -13,11 +21,11 @@ namespace crypto enum GOSTR3410ParamSet { - eGOSTR3410CryptoProA = 0, // 1.2.643.2.2.35.1 + eGOSTR3410CryptoProA = 0, // 1.2.643.2.2.35.1 // XchA = A, XchB = C - //eGOSTR3410CryptoProXchA, // 1.2.643.2.2.36.0 - //eGOSTR3410CryptoProXchB, // 1.2.643.2.2.36.1 - eGOSTR3410TC26A512, // 1.2.643.7.1.2.1.2.1 + //eGOSTR3410CryptoProXchA, // 1.2.643.2.2.36.0 + //eGOSTR3410CryptoProXchB, // 1.2.643.2.2.36.1 + eGOSTR3410TC26A512, // 1.2.643.7.1.2.1.2.1 eGOSTR3410NumParamSets }; diff --git a/libi2pd/Gzip.cpp b/libi2pd/Gzip.cpp index 1c06e941..4be8684c 100644 --- a/libi2pd/Gzip.cpp +++ b/libi2pd/Gzip.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2017, The PurpleI2P Project +* Copyright (c) 2013-2022, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -10,6 +10,7 @@ #include /* memset */ #include #include "Log.h" +#include "I2PEndian.h" #include "Gzip.h" namespace i2p @@ -31,18 +32,35 @@ namespace data size_t GzipInflator::Inflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen) { - if (m_IsDirty) inflateReset (&m_Inflator); - m_IsDirty = true; - m_Inflator.next_in = const_cast(in); - m_Inflator.avail_in = inLen; - m_Inflator.next_out = out; - m_Inflator.avail_out = outLen; - int err; - if ((err = inflate (&m_Inflator, Z_NO_FLUSH)) == Z_STREAM_END) - return outLen - m_Inflator.avail_out; - // else - LogPrint (eLogError, "Gzip: Inflate error ", err); - return 0; + if (inLen < 23) return 0; + if (in[10] == 0x01) // non compressed + { + size_t len = bufle16toh (in + 11); + if (len + 23 < inLen) + { + LogPrint (eLogError, "Gzip: Incorrect length"); + return 0; + } + if (len > outLen) len = outLen; + memcpy (out, in + 15, len); + return len; + } + else + { + if (m_IsDirty) inflateReset (&m_Inflator); + m_IsDirty = true; + m_Inflator.next_in = const_cast(in); + m_Inflator.avail_in = inLen; + m_Inflator.next_out = out; + m_Inflator.avail_out = outLen; + int err; + if ((err = inflate (&m_Inflator, Z_NO_FLUSH)) == Z_STREAM_END) + return outLen - m_Inflator.avail_out; + // else + if (err) + LogPrint (eLogError, "Gzip: Inflate error ", err); + return 0; + } } void GzipInflator::Inflate (const uint8_t * in, size_t inLen, std::ostream& os) @@ -106,10 +124,81 @@ namespace data m_Deflator.avail_out = outLen; int err; if ((err = deflate (&m_Deflator, Z_FINISH)) == Z_STREAM_END) + { + out[9] = 0xff; // OS is always unknown return outLen - m_Deflator.avail_out; + } // else - LogPrint (eLogError, "Gzip: Deflate error ", err); + if (err) + LogPrint (eLogError, "Gzip: Deflate error ", err); return 0; } + + size_t GzipDeflator::Deflate (const std::vector >& bufs, uint8_t * out, size_t outLen) + { + if (m_IsDirty) deflateReset (&m_Deflator); + m_IsDirty = true; + size_t offset = 0; + int err = 0; + for (const auto& it: bufs) + { + m_Deflator.next_in = const_cast(it.first); + m_Deflator.avail_in = it.second; + m_Deflator.next_out = out + offset; + m_Deflator.avail_out = outLen - offset; + auto flush = (it == bufs.back ()) ? Z_FINISH : Z_NO_FLUSH; + err = deflate (&m_Deflator, flush); + if (err) + { + if (flush && err == Z_STREAM_END) + { + out[9] = 0xff; // OS is always unknown + return outLen - m_Deflator.avail_out; + } + break; + } + offset = outLen - m_Deflator.avail_out; + } + // else + if (err) + LogPrint (eLogError, "Gzip: Deflate error ", err); + return 0; + } + + size_t GzipNoCompression (const uint8_t * in, uint16_t inLen, uint8_t * out, size_t outLen) + { + static const uint8_t gzipHeader[11] = { 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x01 }; + if (outLen < (size_t)inLen + 23) return 0; + memcpy (out, gzipHeader, 11); + htole16buf (out + 11, inLen); + htole16buf (out + 13, 0xffff - inLen); + memcpy (out + 15, in, inLen); + htole32buf (out + inLen + 15, crc32 (0, in, inLen)); + htole32buf (out + inLen + 19, inLen); + return inLen + 23; + } + + size_t GzipNoCompression (const std::vector >& bufs, uint8_t * out, size_t outLen) + { + static const uint8_t gzipHeader[11] = { 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x01 }; + memcpy (out, gzipHeader, 11); + uint32_t crc = 0; + size_t len = 0, len1; + for (const auto& it: bufs) + { + len1 = len; + len += it.second; + if (outLen < len + 23) return 0; + memcpy (out + 15 + len1, it.first, it.second); + crc = crc32 (crc, it.first, it.second); + } + if (len > 0xffff) return 0; + htole32buf (out + len + 15, crc); + htole32buf (out + len + 19, len); + htole16buf (out + 11, len); + htole16buf (out + 13, 0xffff - len); + return len + 23; + } + } // data } // i2p diff --git a/libi2pd/Gzip.h b/libi2pd/Gzip.h index 35661abe..d0bb28ed 100644 --- a/libi2pd/Gzip.h +++ b/libi2pd/Gzip.h @@ -1,10 +1,21 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef GZIP_H__ #define GZIP_H__ #include +#include -namespace i2p { -namespace data { +namespace i2p +{ +namespace data +{ class GzipInflator { public: @@ -32,12 +43,16 @@ namespace data { void SetCompressionLevel (int level); size_t Deflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen); + size_t Deflate (const std::vector >& bufs, uint8_t * out, size_t outLen); private: z_stream m_Deflator; bool m_IsDirty; }; + + size_t GzipNoCompression (const uint8_t * in, uint16_t inLen, uint8_t * out, size_t outLen); // for < 64K + size_t GzipNoCompression (const std::vector >& bufs, uint8_t * out, size_t outLen); // for total size < 64K } // data } // i2p diff --git a/libi2pd/HTTP.cpp b/libi2pd/HTTP.cpp index c1a46e73..3cd5c193 100644 --- a/libi2pd/HTTP.cpp +++ b/libi2pd/HTTP.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2017, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -9,288 +9,344 @@ #include #include #include -#include "util.h" -#include "HTTP.h" #include +#include +#include "util.h" +#include "Base.h" +#include "HTTP.h" -namespace i2p { -namespace http { - const std::vector HTTP_METHODS = { - "GET", "HEAD", "POST", "PUT", "PATCH", - "DELETE", "OPTIONS", "CONNECT" - }; - const std::vector HTTP_VERSIONS = { - "HTTP/1.0", "HTTP/1.1" - }; - const std::vector weekdays = { - "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" - }; - const std::vector months = { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" - }; +namespace i2p +{ +namespace http +{ + // list of valid HTTP methods + static constexpr std::array HTTP_METHODS = + { + "GET", "HEAD", "POST", "PUT", "PATCH", "DELETE", "OPTIONS", "CONNECT", // HTTP basic methods + "COPY", "LOCK", "MKCOL", "MOVE", "PROPFIND", "PROPPATCH", "UNLOCK", "SEARCH" // WebDAV methods, for SEARCH see rfc5323 + }; - inline bool is_http_version(const std::string & str) { - return std::find(HTTP_VERSIONS.begin(), HTTP_VERSIONS.end(), str) != std::end(HTTP_VERSIONS); - } + // list of valid HTTP versions + static constexpr std::array HTTP_VERSIONS = + { + "HTTP/1.0", "HTTP/1.1" + }; + + static constexpr std::array weekdays = + { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" + }; + + static constexpr std::array months = + { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" + }; - inline bool is_http_method(const std::string & str) { - return std::find(HTTP_METHODS.begin(), HTTP_METHODS.end(), str) != std::end(HTTP_METHODS); - } - - void strsplit(const std::string & line, std::vector &tokens, char delim, std::size_t limit = 0) { - std::size_t count = 0; - std::stringstream ss(line); - std::string token; - while (1) { - count++; - if (limit > 0 && count >= limit) - delim = '\n'; /* reset delimiter */ - if (!std::getline(ss, token, delim)) - break; - tokens.push_back(token); - } - } - - static std::pair parse_header_line(const std::string& line) - { - std::size_t pos = 0; - std::size_t len = 1; /*: */ - std::size_t max = line.length(); - if ((pos = line.find(':', pos)) == std::string::npos) - return std::make_pair("", ""); // no ':' found - if (pos + 1 < max) // ':' at the end of header is valid - { - while ((pos + len) < max && isspace(line.at(pos + len))) - len++; - if (len == 1) return std::make_pair("", ""); // no following space, but something else + static inline bool is_http_version(std::string_view str) + { + return std::find(HTTP_VERSIONS.begin(), HTTP_VERSIONS.end(), str) != std::end(HTTP_VERSIONS); } - return std::make_pair(line.substr(0, pos), line.substr(pos + len)); - } - void gen_rfc7231_date(std::string & out) { - std::time_t now = std::time(nullptr); - char buf[128]; - std::tm *tm = std::gmtime(&now); - snprintf(buf, sizeof(buf), "%s, %02d %s %d %02d:%02d:%02d GMT", - weekdays[tm->tm_wday], tm->tm_mday, months[tm->tm_mon], - tm->tm_year + 1900, tm->tm_hour, tm->tm_min, tm->tm_sec - ); - out = buf; - } + static inline bool is_http_method(std::string_view str) + { + return std::find(HTTP_METHODS.begin(), HTTP_METHODS.end(), str) != std::end(HTTP_METHODS); + } + + static void strsplit(std::string_view line, std::vector &tokens, char delim, std::size_t limit = 0) + { + size_t count = 0, pos; + while ((pos = line.find (delim)) != line.npos) + { + count++; + if (limit > 0 && count >= limit) delim = '\n'; // reset delimiter + tokens.push_back (line.substr (0, pos)); + line = line.substr (pos + 1); + } + if (!line.empty ()) tokens.push_back (line); + } + + static std::pair parse_header_line(std::string_view line) + { + std::size_t pos = 0; + std::size_t len = 1; /*: */ + std::size_t max = line.length(); + if ((pos = line.find(':', pos)) == std::string::npos) + return std::pair{"", ""}; // no ':' found + if (pos + 1 < max) // ':' at the end of header is valid + { + while ((pos + len) < max && isspace(line.at(pos + len))) + len++; + if (len == 1) + return std::pair{"", ""}; // no following space, but something else + } + return std::pair{std::string (line.substr(0, pos)), std::string (line.substr(pos + len))}; + } - bool URL::parse(const char *str, std::size_t len) { - std::string url(str, len ? len : strlen(str)); - return parse(url); - } + void gen_rfc7231_date(std::string & out) { + std::time_t now = std::time(nullptr); + char buf[128]; + std::tm *tm = std::gmtime(&now); + snprintf(buf, sizeof(buf), "%s, %02d %s %d %02d:%02d:%02d GMT", + weekdays[tm->tm_wday], tm->tm_mday, months[tm->tm_mon], + tm->tm_year + 1900, tm->tm_hour, tm->tm_min, tm->tm_sec + ); + out = buf; + } - bool URL::parse(const std::string& url) { - std::size_t pos_p = 0; /* < current parse position */ - std::size_t pos_c = 0; /* < work position */ - if(url.at(0) != '/' || pos_p > 0) { - std::size_t pos_s = 0; - /* schema */ - pos_c = url.find("://"); - if (pos_c != std::string::npos) { - schema = url.substr(0, pos_c); - pos_p = pos_c + 3; - } - /* user[:pass] */ - pos_s = url.find('/', pos_p); /* find first slash */ - pos_c = url.find('@', pos_p); /* find end of 'user' or 'user:pass' part */ - if (pos_c != std::string::npos && (pos_s == std::string::npos || pos_s > pos_c)) { - std::size_t delim = url.find(':', pos_p); - if (delim && delim != std::string::npos && delim < pos_c) { - user = url.substr(pos_p, delim - pos_p); - delim += 1; - pass = url.substr(delim, pos_c - delim); - } else if(delim) { - user = url.substr(pos_p, pos_c - pos_p); - } - pos_p = pos_c + 1; - } - /* hostname[:port][/path] */ - pos_c = url.find_first_of(":/", pos_p); - if (pos_c == std::string::npos) { - /* only hostname, without post and path */ - host = url.substr(pos_p, std::string::npos); - return true; - } else if (url.at(pos_c) == ':') { - host = url.substr(pos_p, pos_c - pos_p); - /* port[/path] */ - pos_p = pos_c + 1; - pos_c = url.find('/', pos_p); - std::string port_str = (pos_c == std::string::npos) - ? url.substr(pos_p, std::string::npos) - : url.substr(pos_p, pos_c - pos_p); - /* stoi throws exception on failure, we don't need it */ - for (char c : port_str) { - if (c < '0' || c > '9') - return false; - port *= 10; - port += c - '0'; - } - if (pos_c == std::string::npos) - return true; /* no path part */ - pos_p = pos_c; - } else { - /* start of path part found */ - host = url.substr(pos_p, pos_c - pos_p); - pos_p = pos_c; - } - } + bool URL::parse(const char *str, std::size_t len) + { + return parse({str, len ? len : strlen(str)}); + } - /* pos_p now at start of path part */ - pos_c = url.find_first_of("?#", pos_p); - if (pos_c == std::string::npos) { - /* only path, without fragment and query */ - path = url.substr(pos_p, std::string::npos); - return true; - } else if (url.at(pos_c) == '?') { - /* found query part */ - path = url.substr(pos_p, pos_c - pos_p); - pos_p = pos_c + 1; - pos_c = url.find('#', pos_p); - if (pos_c == std::string::npos) { - /* no fragment */ - query = url.substr(pos_p, std::string::npos); - return true; - } else { - query = url.substr(pos_p, pos_c - pos_p); - pos_p = pos_c + 1; - } - } else { - /* found fragment part */ - path = url.substr(pos_p, pos_c - pos_p); - pos_p = pos_c + 1; - } + bool URL::parse(std::string_view url) + { + if (url.empty ()) return false; + std::size_t pos_p = 0; /* < current parse position */ + std::size_t pos_c = 0; /* < work position */ + if(url.at(0) != '/' || pos_p > 0) + { + std::size_t pos_s = 0; - /* pos_p now at start of fragment part */ - frag = url.substr(pos_p, std::string::npos); - return true; - } + /* schema */ + pos_c = url.find("://"); + if (pos_c != std::string::npos) { + schema = url.substr(0, pos_c); + pos_p = pos_c + 3; + } - bool URL::parse_query(std::map & params) { - std::vector tokens; - strsplit(query, tokens, '&'); + /* user[:pass] */ + pos_s = url.find('/', pos_p); /* find first slash */ + pos_c = url.find('@', pos_p); /* find end of 'user' or 'user:pass' part */ - params.clear(); - for (const auto& it : tokens) { - std::size_t eq = it.find ('='); - if (eq != std::string::npos) { - auto e = std::pair(it.substr(0, eq), it.substr(eq + 1)); - params.insert(e); - } else { - auto e = std::pair(it, ""); - params.insert(e); - } - } - return true; - } + if (pos_c != std::string::npos && (pos_s == std::string::npos || pos_s > pos_c)) { + std::size_t delim = url.find(':', pos_p); + if (delim && delim != std::string::npos && delim < pos_c) { + user = url.substr(pos_p, delim - pos_p); + delim += 1; + pass = url.substr(delim, pos_c - delim); + } else if(delim) { + user = url.substr(pos_p, pos_c - pos_p); + } + pos_p = pos_c + 1; + } - std::string URL::to_string() { - std::string out = ""; - if (schema != "") { - out = schema + "://"; - if (user != "" && pass != "") { - out += user + ":" + pass + "@"; - } else if (user != "") { - out += user + "@"; - } - if (port) { - out += host + ":" + std::to_string(port); - } else { - out += host; - } - } - out += path; - if (query != "") - out += "?" + query; - if (frag != "") - out += "#" + frag; - return out; - } + /* hostname[:port][/path] */ + if (url.at(pos_p) == '[') // ipv6 + { + auto pos_b = url.find(']', pos_p); + if (pos_b == std::string::npos) return false; + ipv6 = true; + pos_c = url.find_first_of(":/", pos_b); + } + else + pos_c = url.find_first_of(":/", pos_p); + + if (pos_c == std::string::npos) { + /* only hostname, without post and path */ + host = ipv6 ? + url.substr(pos_p + 1, url.length() - 1) : + url.substr(pos_p, std::string::npos); + return true; + } else if (url.at(pos_c) == ':') { + host = ipv6 ? + url.substr(pos_p + 1, pos_c - pos_p - 2) : + url.substr(pos_p, pos_c - pos_p); + /* port[/path] */ + pos_p = pos_c + 1; + pos_c = url.find('/', pos_p); + std::string_view port_str = (pos_c == std::string::npos) + ? url.substr(pos_p, std::string::npos) + : url.substr(pos_p, pos_c - pos_p); + /* stoi throws exception on failure, we don't need it */ + port = 0; + for (char c : port_str) { + if (c < '0' || c > '9') + return false; + port *= 10; + port += c - '0'; + } + if (pos_c == std::string::npos) + return true; /* no path part */ + pos_p = pos_c; + } else { + /* start of path part found */ + host = ipv6 ? + url.substr(pos_p + 1, pos_c - pos_p - 2) : + url.substr(pos_p, pos_c - pos_p); + pos_p = pos_c; + } + } + + /* pos_p now at start of path part */ + pos_c = url.find_first_of("?#", pos_p); + if (pos_c == std::string::npos) { + /* only path, without fragment and query */ + path = url.substr(pos_p, std::string::npos); + return true; + } else if (url.at(pos_c) == '?') { + /* found query part */ + hasquery = true; + path = url.substr(pos_p, pos_c - pos_p); + pos_p = pos_c + 1; + pos_c = url.find('#', pos_p); + if (pos_c == std::string::npos) { + /* no fragment */ + query = url.substr(pos_p, std::string::npos); + return true; + } else { + query = url.substr(pos_p, pos_c - pos_p); + pos_p = pos_c + 1; + } + } else { + /* found fragment part */ + path = url.substr(pos_p, pos_c - pos_p); + pos_p = pos_c + 1; + } + + /* pos_p now at start of fragment part */ + frag = url.substr(pos_p, std::string::npos); + return true; + } + + bool URL::parse_query(std::map & params) + { + std::vector tokens; + strsplit(query, tokens, '&'); + + params.clear(); + for (const auto& it : tokens) { + if (!it.length()) // empty + continue; + std::size_t eq = it.find ('='); + if (eq != std::string::npos) { + auto e = std::pair(it.substr(0, eq), it.substr(eq + 1)); + params.insert(e); + } else { + auto e = std::pair(it, ""); + params.insert(e); + } + } + return true; + } + + std::string URL::to_string() { + std::string out = ""; + if (schema != "") { + out = schema + "://"; + if (user != "" && pass != "") { + out += user + ":" + pass + "@"; + } else if (user != "") { + out += user + "@"; + } + if (ipv6) { + if (port) { + out += "[" + host + "]:" + std::to_string(port); + } else { + out += "[" + host + "]"; + } + } else { + if (port) { + out += host + ":" + std::to_string(port); + } else { + out += host; + } + } + } + out += path; + if (hasquery) // add query even if it was empty + out += "?"; + if (query != "") + out += query; + if (frag != "") + out += "#" + frag; + return out; + } bool URL::is_i2p() const { return host.rfind(".i2p") == ( host.size() - 4 ); } - void HTTPMsg::add_header(const char *name, std::string & value, bool replace) { - add_header(name, value.c_str(), replace); - } + void HTTPMsg::add_header(const char *name, const std::string & value, bool replace) { + add_header(name, value.c_str(), replace); + } - void HTTPMsg::add_header(const char *name, const char *value, bool replace) { - std::size_t count = headers.count(name); - if (count && !replace) - return; - if (count) { - headers[name] = value; - return; - } - headers.insert(std::pair(name, value)); - } + void HTTPMsg::add_header(const char *name, const char *value, bool replace) { + std::size_t count = headers.count(name); + if (count && !replace) + return; + if (count) { + headers[name] = value; + return; + } + headers.insert(std::pair(name, value)); + } - void HTTPMsg::del_header(const char *name) { - headers.erase(name); - } + void HTTPMsg::del_header(const char *name) { + headers.erase(name); + } - int HTTPReq::parse(const char *buf, size_t len) { - std::string str(buf, len); - return parse(str); - } + int HTTPReq::parse(const char *buf, size_t len) + { + return parse({buf, len}); + } - int HTTPReq::parse(const std::string& str) { - enum { REQ_LINE, HEADER_LINE } expect = REQ_LINE; - std::size_t eoh = str.find(HTTP_EOH); /* request head size */ - std::size_t eol = 0, pos = 0; - URL url; + int HTTPReq::parse(std::string_view str) + { + enum { REQ_LINE, HEADER_LINE } expect = REQ_LINE; + std::size_t eoh = str.find(HTTP_EOH); /* request head size */ + std::size_t eol = 0, pos = 0; + URL url; - if (eoh == std::string::npos) - return 0; /* str not contains complete request */ + if (eoh == std::string::npos) + return 0; /* str not contains complete request */ - while ((eol = str.find(CRLF, pos)) != std::string::npos) { - if (expect == REQ_LINE) { - std::string line = str.substr(pos, eol - pos); - std::vector tokens; - strsplit(line, tokens, ' '); - if (tokens.size() != 3) - return -1; - if (!is_http_method(tokens[0])) - return -1; - if (!is_http_version(tokens[2])) - return -1; - if (!url.parse(tokens[1])) - return -1; - /* all ok */ - method = tokens[0]; - uri = tokens[1]; - version = tokens[2]; - expect = HEADER_LINE; - } - else - { - std::string line = str.substr(pos, eol - pos); - auto p = parse_header_line(line); - if (p.first.length () > 0) - headers.push_back (p); - else - return -1; - } - pos = eol + strlen(CRLF); - if (pos >= eoh) - break; - } - return eoh + strlen(HTTP_EOH); - } + while ((eol = str.find(CRLF, pos)) != std::string::npos) + { + if (expect == REQ_LINE) + { + std::string_view line = str.substr(pos, eol - pos); + std::vector tokens; + strsplit(line, tokens, ' '); + + if (tokens.size() != 3) + return -1; + if (!is_http_method(tokens[0])) + return -1; + if (!is_http_version(tokens[2])) + return -1; + if (!url.parse(tokens[1])) + return -1; + /* all ok */ + method = tokens[0]; + uri = tokens[1]; + version = tokens[2]; + expect = HEADER_LINE; + } + else + { + std::string_view line = str.substr(pos, eol - pos); + auto p = parse_header_line(line); + if (p.first.length () > 0) + headers.push_back (p); + else + return -1; + } + pos = eol + CRLF.length(); + if (pos >= eoh) + break; + } + return eoh + HTTP_EOH.length(); + } - void HTTPReq::write(std::ostream & o) - { - o << method << " " << uri << " " << version << CRLF; - for (auto & h : headers) - o << h.first << ": " << h.second << CRLF; - o << CRLF; - } + void HTTPReq::write(std::ostream & o) + { + o << method << " " << uri << " " << version << CRLF; + for (auto & h : headers) + o << h.first << ": " << h.second << CRLF; + o << CRLF; + } std::string HTTPReq::to_string() { @@ -306,7 +362,7 @@ namespace http { void HTTPReq::UpdateHeader (const std::string& name, const std::string& value) { - for (auto& it : headers) + for (auto& it : headers) if (it.first == name) { it.second = value; @@ -325,179 +381,207 @@ namespace http { } } - std::string HTTPReq::GetHeader (const std::string& name) const + std::string HTTPReq::GetHeader (std::string_view name) const { - for (auto& it : headers) + for (auto& it : headers) if (it.first == name) return it.second; return ""; } - bool HTTPRes::is_chunked() const - { - auto it = headers.find("Transfer-Encoding"); - if (it == headers.end()) - return false; - if (it->second.find("chunked") == std::string::npos) - return true; - return false; - } + size_t HTTPReq::GetNumHeaders (std::string_view name) const + { + size_t num = 0; + for (auto& it : headers) + if (it.first == name) num++; + return num; + } - bool HTTPRes::is_gzipped(bool includingI2PGzip) const - { - auto it = headers.find("Content-Encoding"); - if (it == headers.end()) - return false; /* no header */ - if (it->second.find("gzip") != std::string::npos) - return true; /* gotcha! */ - if (includingI2PGzip && it->second.find("x-i2p-gzip") != std::string::npos) - return true; - return false; - } + bool HTTPRes::is_chunked() const + { + auto it = headers.find("Transfer-Encoding"); + if (it == headers.end()) + return false; + if (it->second.find("chunked") != std::string::npos) + return true; + return false; + } - long int HTTPMsg::content_length() const - { - unsigned long int length = 0; - auto it = headers.find("Content-Length"); - if (it == headers.end()) - return -1; - errno = 0; - length = std::strtoul(it->second.c_str(), (char **) NULL, 10); - if (errno != 0) - return -1; - return length; - } + bool HTTPRes::is_gzipped(bool includingI2PGzip) const + { + auto it = headers.find("Content-Encoding"); + if (it == headers.end()) + return false; /* no header */ + if (it->second.find("gzip") != std::string::npos) + return true; /* gotcha! */ + if (includingI2PGzip && it->second.find("x-i2p-gzip") != std::string::npos) + return true; + return false; + } - int HTTPRes::parse(const char *buf, size_t len) { - std::string str(buf, len); - return parse(str); - } + long int HTTPMsg::content_length() const + { + unsigned long int length = 0; + auto it = headers.find("Content-Length"); + if (it == headers.end()) + return -1; + errno = 0; + length = std::strtoul(it->second.c_str(), (char **) NULL, 10); + if (errno != 0) + return -1; + return length; + } - int HTTPRes::parse(const std::string& str) { - enum { RES_LINE, HEADER_LINE } expect = RES_LINE; - std::size_t eoh = str.find(HTTP_EOH); /* request head size */ - std::size_t eol = 0, pos = 0; + int HTTPRes::parse(const char *buf, size_t len) + { + return parse({buf,len}); + } - if (eoh == std::string::npos) - return 0; /* str not contains complete request */ + int HTTPRes::parse(std::string_view str) + { + enum { RES_LINE, HEADER_LINE } expect = RES_LINE; + std::size_t eoh = str.find(HTTP_EOH); /* request head size */ + std::size_t eol = 0, pos = 0; - while ((eol = str.find(CRLF, pos)) != std::string::npos) { - if (expect == RES_LINE) { - std::string line = str.substr(pos, eol - pos); - std::vector tokens; - strsplit(line, tokens, ' ', 3); - if (tokens.size() != 3) - return -1; - if (!is_http_version(tokens[0])) - return -1; - code = atoi(tokens[1].c_str()); - if (code < 100 || code >= 600) - return -1; - /* all ok */ - version = tokens[0]; - status = tokens[2]; - expect = HEADER_LINE; - } else { - std::string line = str.substr(pos, eol - pos); - auto p = parse_header_line(line); - if (p.first.length () > 0) - headers.insert (p); - else - return -1; - } - pos = eol + strlen(CRLF); - if (pos >= eoh) - break; - } + if (eoh == std::string::npos) + return 0; /* str not contains complete request */ - return eoh + strlen(HTTP_EOH); - } + while ((eol = str.find(CRLF, pos)) != std::string::npos) + { + if (expect == RES_LINE) + { + std::string_view line = str.substr(pos, eol - pos); + std::vector tokens; + strsplit(line, tokens, ' ', 3); + if (tokens.size() != 3) + return -1; + if (!is_http_version(tokens[0])) + return -1; + auto res = std::from_chars(tokens[1].data (), tokens[1].data() + tokens[1].size(), code); + if (res.ec != std::errc()) + return -1; + if (code < 100 || code >= 600) + return -1; + /* all ok */ + version = tokens[0]; + status = tokens[2]; + expect = HEADER_LINE; + } + else + { + std::string_view line = str.substr(pos, eol - pos); + auto p = parse_header_line(line); + if (p.first.length () > 0) + headers.insert (p); + else + return -1; + } + pos = eol + CRLF.length(); + if (pos >= eoh) + break; + } + return eoh + HTTP_EOH.length(); + } - std::string HTTPRes::to_string() { - if (version == "HTTP/1.1" && headers.count("Date") == 0) { - std::string date; - gen_rfc7231_date(date); - add_header("Date", date.c_str()); - } - if (status == "OK" && code != 200) - status = HTTPCodeToStatus(code); // update - if (body.length() > 0 && headers.count("Content-Length") == 0) - add_header("Content-Length", std::to_string(body.length()).c_str()); - /* build response */ - std::stringstream ss; - ss << version << " " << code << " " << status << CRLF; - for (auto & h : headers) { - ss << h.first << ": " << h.second << CRLF; - } - ss << CRLF; - if (body.length() > 0) - ss << body; - return ss.str(); - } + std::string HTTPRes::to_string() { + if (version == "HTTP/1.1" && headers.count("Date") == 0) { + std::string date; + gen_rfc7231_date(date); + add_header("Date", date.c_str()); + } + if (status == "OK" && code != 200) + status = HTTPCodeToStatus(code); // update + if (body.length() > 0 && headers.count("Content-Length") == 0) + add_header("Content-Length", std::to_string(body.length()).c_str()); + /* build response */ + std::stringstream ss; + ss << version << " " << code << " " << status << CRLF; + for (auto & h : headers) { + ss << h.first << ": " << h.second << CRLF; + } + ss << CRLF; + if (body.length() > 0) + ss << body; + return ss.str(); + } - const char * HTTPCodeToStatus(int code) { - const char *ptr; - switch (code) { - case 105: ptr = "Name Not Resolved"; break; - /* success */ - case 200: ptr = "OK"; break; - case 206: ptr = "Partial Content"; break; - /* redirect */ - case 301: ptr = "Moved Permanently"; break; - case 302: ptr = "Found"; break; - case 304: ptr = "Not Modified"; break; - case 307: ptr = "Temporary Redirect"; break; - /* client error */ - case 400: ptr = "Bad Request"; break; - case 401: ptr = "Unauthorized"; break; - case 403: ptr = "Forbidden"; break; - case 404: ptr = "Not Found"; break; - case 407: ptr = "Proxy Authentication Required"; break; - case 408: ptr = "Request Timeout"; break; - /* server error */ - case 500: ptr = "Internal Server Error"; break; - case 502: ptr = "Bad Gateway"; break; - case 503: ptr = "Not Implemented"; break; - case 504: ptr = "Gateway Timeout"; break; - default: ptr = "Unknown Status"; break; - } - return ptr; - } + std::string_view HTTPCodeToStatus(int code) + { + std::string_view ptr; + switch (code) + { + case 105: ptr = "Name Not Resolved"; break; + /* success */ + case 200: ptr = "OK"; break; + case 206: ptr = "Partial Content"; break; + /* redirect */ + case 301: ptr = "Moved Permanently"; break; + case 302: ptr = "Found"; break; + case 304: ptr = "Not Modified"; break; + case 307: ptr = "Temporary Redirect"; break; + /* client error */ + case 400: ptr = "Bad Request"; break; + case 401: ptr = "Unauthorized"; break; + case 403: ptr = "Forbidden"; break; + case 404: ptr = "Not Found"; break; + case 407: ptr = "Proxy Authentication Required"; break; + case 408: ptr = "Request Timeout"; break; + /* server error */ + case 500: ptr = "Internal Server Error"; break; + case 502: ptr = "Bad Gateway"; break; + case 503: ptr = "Not Implemented"; break; + case 504: ptr = "Gateway Timeout"; break; + default: ptr = "Unknown Status"; break; + } + return ptr; + } - std::string UrlDecode(const std::string& data, bool allow_null) { + std::string UrlDecode(std::string_view data, bool allow_null) + { std::string decoded(data); - size_t pos = 0; - while ((pos = decoded.find('%', pos)) != std::string::npos) { - char c = strtol(decoded.substr(pos + 1, 2).c_str(), NULL, 16); - if (c == '\0' && !allow_null) { - pos += 3; - continue; - } - decoded.replace(pos, 3, 1, c); - pos++; - } - return decoded; - } + size_t pos = 0; + while ((pos = decoded.find('%', pos)) != std::string::npos) + { + char c = std::stol(decoded.substr(pos + 1, 2), nullptr, 16); + if (!c && !allow_null) + { + pos += 3; + continue; + } + decoded.replace(pos, 3, 1, c); + pos++; + } + return decoded; + } + + bool MergeChunkedResponse (std::istream& in, std::ostream& out) + { + std::string hexLen; + while (!in.eof ()) + { + std::getline (in, hexLen); + errno = 0; + long int len = strtoul(hexLen.c_str(), (char **) NULL, 16); + if (errno != 0) + return false; /* conversion error */ + if (len == 0) + return true; /* end of stream */ + if (len < 0 || len > 10 * 1024 * 1024) /* < 10Mb */ + return false; /* too large chunk */ + char * buf = new char[len]; + in.read (buf, len); + out.write (buf, len); + delete[] buf; + std::getline (in, hexLen); // read \r\n after chunk + } + return true; + } + + std::string CreateBasicAuthorizationString (const std::string& user, const std::string& pass) + { + if (user.empty () && pass.empty ()) return ""; + return "Basic " + i2p::data::ToBase64Standard (user + ":" + pass); + } - bool MergeChunkedResponse (std::istream& in, std::ostream& out) { - std::string hexLen; - while (!in.eof ()) { - std::getline (in, hexLen); - errno = 0; - long int len = strtoul(hexLen.c_str(), (char **) NULL, 16); - if (errno != 0) - return false; /* conversion error */ - if (len == 0) - return true; /* end of stream */ - if (len < 0 || len > 10 * 1024 * 1024) /* < 10Mb */ - return false; /* too large chunk */ - char * buf = new char[len]; - in.read (buf, len); - out.write (buf, len); - delete[] buf; - std::getline (in, hexLen); // read \r\n after chunk - } - return true; - } } // http } // i2p diff --git a/libi2pd/HTTP.h b/libi2pd/HTTP.h index 837faf01..c65c1ce4 100644 --- a/libi2pd/HTTP.h +++ b/libi2pd/HTTP.h @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2016, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -14,158 +14,164 @@ #include #include #include +#include #include namespace i2p { namespace http { - const char CRLF[] = "\r\n"; /**< HTTP line terminator */ - const char HTTP_EOH[] = "\r\n\r\n"; /**< HTTP end-of-headers mark */ - extern const std::vector HTTP_METHODS; /**< list of valid HTTP methods */ - extern const std::vector HTTP_VERSIONS; /**< list of valid HTTP versions */ + constexpr std::string_view CRLF = "\r\n"; /**< HTTP line terminator */ + constexpr std::string_view HTTP_EOH = "\r\n\r\n"; /**< HTTP end-of-headers mark */ - struct URL - { - std::string schema; - std::string user; - std::string pass; - std::string host; - unsigned short int port; - std::string path; - std::string query; - std::string frag; + struct URL + { + std::string schema; + std::string user; + std::string pass; + std::string host; + unsigned short int port; + std::string path; + bool hasquery; + std::string query; + std::string frag; + bool ipv6; - URL(): schema(""), user(""), pass(""), host(""), port(0), path(""), query(""), frag("") {}; + URL(): schema(""), user(""), pass(""), host(""), port(0), path(""), hasquery(false), query(""), frag(""), ipv6(false) {}; - /** - * @brief Tries to parse url from string - * @return true on success, false on invalid url - */ - bool parse (const char *str, std::size_t len = 0); - bool parse (const std::string& url); + /** + * @brief Tries to parse url from string + * @return true on success, false on invalid url + */ + bool parse (const char *str, std::size_t len = 0); + bool parse (std::string_view url); - /** - * @brief Parse query part of url to key/value map - * @note Honestly, this should be implemented with std::multimap - */ - bool parse_query(std::map & params); + /** + * @brief Parse query part of url to key/value map + * @note Honestly, this should be implemented with std::multimap + */ + bool parse_query(std::map & params); - /** - * @brief Serialize URL structure to url - * @note Returns relative url if schema if empty, absolute url otherwise - */ - std::string to_string (); + /** + * @brief Serialize URL structure to url + * @note Returns relative url if schema if empty, absolute url otherwise + */ + std::string to_string (); - /** - * @brief return true if the host is inside i2p - */ - bool is_i2p() const; - }; + /** + * @brief return true if the host is inside i2p + */ + bool is_i2p() const; + }; - struct HTTPMsg - { - std::map headers; + struct HTTPMsg + { + std::map headers; - void add_header(const char *name, std::string & value, bool replace = false); - void add_header(const char *name, const char *value, bool replace = false); - void del_header(const char *name); + void add_header(const char *name, const std::string & value, bool replace = false); + void add_header(const char *name, const char *value, bool replace = false); + void del_header(const char *name); - /** @brief Returns declared message length or -1 if unknown */ - long int content_length() const; - }; + /** @brief Returns declared message length or -1 if unknown */ + long int content_length() const; + }; - struct HTTPReq - { - std::list > headers; - std::string version; - std::string method; - std::string uri; + struct HTTPReq + { + std::list > headers; + std::string version; + std::string method; + std::string uri; - HTTPReq (): version("HTTP/1.0"), method("GET"), uri("/") {}; + HTTPReq (): version("HTTP/1.0"), method("GET"), uri("/") {}; - /** - * @brief Tries to parse HTTP request from string - * @return -1 on error, 0 on incomplete query, >0 on success - * @note Positive return value is a size of header - */ - int parse(const char *buf, size_t len); - int parse(const std::string& buf); + /** + * @brief Tries to parse HTTP request from string + * @return -1 on error, 0 on incomplete query, >0 on success + * @note Positive return value is a size of header + */ + int parse(const char *buf, size_t len); + int parse(std::string_view buf); - /** @brief Serialize HTTP request to string */ - std::string to_string(); + /** @brief Serialize HTTP request to string */ + std::string to_string(); void write(std::ostream & o); - void AddHeader (const std::string& name, const std::string& value); - void UpdateHeader (const std::string& name, const std::string& value); - void RemoveHeader (const std::string& name, const std::string& exempt); // remove all headers starting with name, but exempt - void RemoveHeader (const std::string& name) { RemoveHeader (name, ""); }; - std::string GetHeader (const std::string& name) const; - }; + void AddHeader (const std::string& name, const std::string& value); + void UpdateHeader (const std::string& name, const std::string& value); + void RemoveHeader (const std::string& name, const std::string& exempt); // remove all headers starting with name, but exempt + void RemoveHeader (const std::string& name) { RemoveHeader (name, ""); }; + std::string GetHeader (std::string_view name) const; + size_t GetNumHeaders (std::string_view name) const; + size_t GetNumHeaders () const { return headers.size (); }; + }; - struct HTTPRes : HTTPMsg { - std::string version; - std::string status; - unsigned short int code; - /** - * @brief Simplifies response generation - * - * If this variable is set, on @a to_string() call: - * * Content-Length header will be added if missing, - * * contents of @a body will be included in generated response - */ - std::string body; + struct HTTPRes : HTTPMsg { + std::string version; + std::string status; + unsigned short int code; + /** + * @brief Simplifies response generation + * + * If this variable is set, on @a to_string() call: + * * Content-Length header will be added if missing, + * * contents of @a body will be included in generated response + */ + std::string body; - HTTPRes (): version("HTTP/1.1"), status("OK"), code(200) {} + HTTPRes (): version("HTTP/1.1"), status("OK"), code(200) {} - /** - * @brief Tries to parse HTTP response from string - * @return -1 on error, 0 on incomplete query, >0 on success - * @note Positive return value is a size of header - */ - int parse(const char *buf, size_t len); - int parse(const std::string& buf); + /** + * @brief Tries to parse HTTP response from string + * @return -1 on error, 0 on incomplete query, >0 on success + * @note Positive return value is a size of header + */ + int parse(const char *buf, size_t len); + int parse(const std::string_view buf); - /** - * @brief Serialize HTTP response to string - * @note If @a version is set to HTTP/1.1, and Date header is missing, - * it will be generated based on current time and added to headers - * @note If @a body is set and Content-Length header is missing, - * this header will be added, based on body's length - */ - std::string to_string(); + /** + * @brief Serialize HTTP response to string + * @note If @a version is set to HTTP/1.1, and Date header is missing, + * it will be generated based on current time and added to headers + * @note If @a body is set and Content-Length header is missing, + * this header will be added, based on body's length + */ + std::string to_string(); void write(std::ostream & o); - /** @brief Checks that response declared as chunked data */ - bool is_chunked() const ; + /** @brief Checks that response declared as chunked data */ + bool is_chunked() const ; - /** @brief Checks that response contains compressed data */ - bool is_gzipped(bool includingI2PGzip = true) const; - }; + /** @brief Checks that response contains compressed data */ + bool is_gzipped(bool includingI2PGzip = true) const; + }; - /** - * @brief returns HTTP status string by integer code - * @param code HTTP code [100, 599] - * @return Immutable string with status - */ - const char * HTTPCodeToStatus(int code); + /** + * @brief returns HTTP status string by integer code + * @param code HTTP code [100, 599] + * @return Immutable string with status + */ + std::string_view HTTPCodeToStatus(int code); - /** - * @brief Replaces %-encoded characters in string with their values - * @param data Source string - * @param null If set to true - decode also %00 sequence, otherwise - skip - * @return Decoded string - */ - std::string UrlDecode(const std::string& data, bool null = false); + /** + * @brief Replaces %-encoded characters in string with their values + * @param data Source string + * @param null If set to true - decode also %00 sequence, otherwise - skip + * @return Decoded string + */ + std::string UrlDecode(std::string_view data, bool null = false); + + /** + * @brief Merge HTTP response content with Transfer-Encoding: chunked + * @param in Input stream + * @param out Output stream + * @return true on success, false otherwise + */ + bool MergeChunkedResponse (std::istream& in, std::ostream& out); + + std::string CreateBasicAuthorizationString (const std::string& user, const std::string& pass); - /** - * @brief Merge HTTP response content with Transfer-Encoding: chunked - * @param in Input stream - * @param out Output stream - * @return true on success, false otherwise - */ - bool MergeChunkedResponse (std::istream& in, std::ostream& out); } // http } // i2p diff --git a/libi2pd/I2NPProtocol.cpp b/libi2pd/I2NPProtocol.cpp index 9f6c609b..e97a3596 100644 --- a/libi2pd/I2NPProtocol.cpp +++ b/libi2pd/I2NPProtocol.cpp @@ -1,20 +1,24 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include "Base.h" #include "Log.h" -#include "Crypto.h" #include "I2PEndian.h" #include "Timestamp.h" #include "RouterContext.h" #include "NetDb.hpp" #include "Tunnel.h" -#include "Transports.h" -#include "Garlic.h" +#include "TransitTunnel.h" #include "I2NPProtocol.h" #include "version.h" -using namespace i2p::transport; - namespace i2p { std::shared_ptr NewI2NPMessage () @@ -27,26 +31,32 @@ namespace i2p return std::make_shared >(); } - std::shared_ptr NewI2NPTunnelMessage () + std::shared_ptr NewI2NPMediumMessage () { - auto msg = new I2NPMessageBuffer(); // reserved for alignment and NTCP 16 + 6 + 12 - msg->Align (12); - return std::shared_ptr(msg); + return std::make_shared >(); + } + + std::shared_ptr NewI2NPTunnelMessage (bool endpoint) + { + return i2p::tunnel::tunnels.NewI2NPTunnelMessage (endpoint); } std::shared_ptr NewI2NPMessage (size_t len) { - return (len < I2NP_MAX_SHORT_MESSAGE_SIZE - I2NP_HEADER_SIZE - 2) ? NewI2NPShortMessage () : NewI2NPMessage (); + len += I2NP_HEADER_SIZE + 2; + if (len <= I2NP_MAX_SHORT_MESSAGE_SIZE) return NewI2NPShortMessage (); + if (len <= I2NP_MAX_MEDIUM_MESSAGE_SIZE) return NewI2NPMediumMessage (); + return NewI2NPMessage (); } - void I2NPMessage::FillI2NPMessageHeader (I2NPMessageType msgType, uint32_t replyMsgID) + void I2NPMessage::FillI2NPMessageHeader (I2NPMessageType msgType, uint32_t replyMsgID, bool checksum) { SetTypeID (msgType); if (!replyMsgID) RAND_bytes ((uint8_t *)&replyMsgID, 4); SetMsgID (replyMsgID); SetExpiration (i2p::util::GetMillisecondsSinceEpoch () + I2NP_MESSAGE_EXPIRATION_TIMEOUT); UpdateSize (); - UpdateChks (); + if (checksum) UpdateChks (); } void I2NPMessage::RenewI2NPMessageHeader () @@ -57,18 +67,22 @@ namespace i2p SetExpiration (i2p::util::GetMillisecondsSinceEpoch () + I2NP_MESSAGE_EXPIRATION_TIMEOUT); } - bool I2NPMessage::IsExpired () const + bool I2NPMessage::IsExpired (uint64_t ts) const { - auto ts = i2p::util::GetMillisecondsSinceEpoch (); auto exp = GetExpiration (); return (ts > exp + I2NP_MESSAGE_CLOCK_SKEW) || (ts < exp - 3*I2NP_MESSAGE_CLOCK_SKEW); // check if expired or too far in future + } + + bool I2NPMessage::IsExpired () const + { + return IsExpired (i2p::util::GetMillisecondsSinceEpoch ()); } std::shared_ptr CreateI2NPMessage (I2NPMessageType msgType, const uint8_t * buf, size_t len, uint32_t replyMsgID) { auto msg = NewI2NPMessage (len); if (msg->Concat (buf, len) < len) - LogPrint (eLogError, "I2NP: message length ", len, " exceeds max length ", msg->maxLen); + LogPrint (eLogError, "I2NP: Message length ", len, " exceeds max length ", msg->maxLen); msg->FillI2NPMessageHeader (msgType, replyMsgID); return msg; } @@ -83,7 +97,7 @@ namespace i2p msg->from = from; } else - LogPrint (eLogError, "I2NP: message length ", len, " exceeds max length"); + LogPrint (eLogError, "I2NP: Message length ", len, " exceeds max length"); return msg; } @@ -96,6 +110,17 @@ namespace i2p return newMsg; } + std::shared_ptr CreateTunnelTestMsg (uint32_t msgID) + { + auto m = NewI2NPShortMessage (); + uint8_t * buf = m->GetPayload (); + htobe32buf (buf + TUNNEL_TEST_MSGID_OFFSET, msgID); + htobe64buf (buf + TUNNEL_TEST_TIMESTAMP_OFFSET, i2p::util::GetMonotonicMicroseconds ()); + m->len += TUNNEL_TEST_SIZE; + m->FillI2NPMessageHeader (eI2NPTunnelTest); + return m; + } + std::shared_ptr CreateDeliveryStatusMsg (uint32_t msgID) { auto m = NewI2NPShortMessage (); @@ -117,9 +142,10 @@ namespace i2p } std::shared_ptr CreateRouterInfoDatabaseLookupMsg (const uint8_t * key, const uint8_t * from, - uint32_t replyTunnelID, bool exploratory, std::set * excludedPeers) + uint32_t replyTunnelID, bool exploratory, std::unordered_set * excludedPeers) { - auto m = excludedPeers ? NewI2NPMessage () : NewI2NPShortMessage (); + int cnt = excludedPeers ? excludedPeers->size () : 0; + auto m = cnt > 7 ? NewI2NPMessage () : NewI2NPShortMessage (); uint8_t * buf = m->GetPayload (); memcpy (buf, key, 32); // key buf += 32; @@ -140,7 +166,6 @@ namespace i2p if (excludedPeers) { - int cnt = excludedPeers->size (); htobe16buf (buf, cnt); buf += 2; for (auto& it: *excludedPeers) @@ -162,22 +187,29 @@ namespace i2p } std::shared_ptr CreateLeaseSetDatabaseLookupMsg (const i2p::data::IdentHash& dest, - const std::set& excludedFloodfills, - std::shared_ptr replyTunnel, const uint8_t * replyKey, const uint8_t * replyTag) + const std::unordered_set& excludedFloodfills, + std::shared_ptr replyTunnel, const uint8_t * replyKey, + const uint8_t * replyTag, bool replyECIES) { int cnt = excludedFloodfills.size (); - auto m = cnt > 0 ? NewI2NPMessage () : NewI2NPShortMessage (); + auto m = cnt > 7 ? NewI2NPMessage () : NewI2NPShortMessage (); uint8_t * buf = m->GetPayload (); memcpy (buf, dest, 32); // key buf += 32; memcpy (buf, replyTunnel->GetNextIdentHash (), 32); // reply tunnel GW buf += 32; - *buf = DATABASE_LOOKUP_DELIVERY_FLAG | DATABASE_LOOKUP_ENCRYPTION_FLAG | DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP; // flags + *buf = DATABASE_LOOKUP_DELIVERY_FLAG | DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP; // flags + *buf |= (replyECIES ? DATABASE_LOOKUP_ECIES_FLAG : DATABASE_LOOKUP_ENCRYPTION_FLAG); buf ++; htobe32buf (buf, replyTunnel->GetNextTunnelID ()); // reply tunnel ID buf += 4; // excluded + if (cnt > 512) + { + LogPrint (eLogWarning, "I2NP: Too many peers to exclude ", cnt, " for DatabaseLookup"); + cnt = 0; + } htobe16buf (buf, cnt); buf += 2; if (cnt > 0) @@ -190,9 +222,17 @@ namespace i2p } // encryption memcpy (buf, replyKey, 32); - buf[32] = uint8_t( 1 ); // 1 tag - memcpy (buf + 33, replyTag, 32); - buf += 65; + buf[32] = 1; // 1 tag + if (replyECIES) + { + memcpy (buf + 33, replyTag, 8); // 8 bytes tag + buf += 41; + } + else + { + memcpy (buf + 33, replyTag, 32); // 32 bytes tag + buf += 65; + } m->len += (buf - m->GetPayload ()); m->FillI2NPMessageHeader (eI2NPDatabaseLookup); @@ -200,7 +240,7 @@ namespace i2p } std::shared_ptr CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, - std::vector routers) + std::vector routers) { auto m = NewI2NPShortMessage (); uint8_t * buf = m->GetPayload (); @@ -221,11 +261,18 @@ namespace i2p return m; } - std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr router, uint32_t replyToken) + std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr router, + uint32_t replyToken, std::shared_ptr replyTunnel) { if (!router) // we send own RouterInfo router = context.GetSharedRouterInfo (); + if (!router->GetBuffer ()) + { + LogPrint (eLogError, "I2NP: Invalid RouterInfo buffer for DatabaseStore"); + return nullptr; + } + auto m = NewI2NPShortMessage (); uint8_t * payload = m->GetPayload (); @@ -235,17 +282,33 @@ namespace i2p uint8_t * buf = payload + DATABASE_STORE_HEADER_SIZE; if (replyToken) { - memset (buf, 0, 4); // zero tunnelID means direct reply - buf += 4; - memcpy (buf, router->GetIdentHash (), 32); - buf += 32; + if (replyTunnel) + { + htobe32buf (buf, replyTunnel->GetNextTunnelID ()); + buf += 4; // reply tunnelID + memcpy (buf, replyTunnel->GetNextIdentHash (), 32); + buf += 32; // reply tunnel gateway + } + else + { + memset (buf, 0, 4); // zero tunnelID means direct reply + buf += 4; + memcpy (buf, context.GetIdentHash (), 32); + buf += 32; + } } uint8_t * sizePtr = buf; buf += 2; m->len += (buf - payload); // payload size - i2p::data::GzipDeflator deflator; - size_t size = deflator.Deflate (router->GetBuffer (), router->GetBufferLen (), buf, m->maxLen -m->len); + size_t size = 0; + if (router->GetBufferLen () + (buf - payload) <= 940) // fits one tunnel message + size = i2p::data::GzipNoCompression (router->GetBuffer (), router->GetBufferLen (), buf, m->maxLen -m->len); + else + { + i2p::data::GzipDeflator deflator; + size = deflator.Deflate (router->GetBuffer (), router->GetBufferLen (), buf, m->maxLen -m->len); + } if (size) { htobe16buf (sizePtr, size); // size @@ -258,13 +321,13 @@ namespace i2p return m; } - std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr leaseSet) + std::shared_ptr CreateDatabaseStoreMsg (const i2p::data::IdentHash& storeHash, std::shared_ptr leaseSet) { if (!leaseSet) return nullptr; auto m = NewI2NPShortMessage (); uint8_t * payload = m->GetPayload (); - memcpy (payload + DATABASE_STORE_KEY_OFFSET, leaseSet->GetIdentHash (), 32); - payload[DATABASE_STORE_TYPE_OFFSET] = leaseSet->GetStoreType (); // 1 for LeaseSet + memcpy (payload + DATABASE_STORE_KEY_OFFSET, storeHash, 32); + payload[DATABASE_STORE_TYPE_OFFSET] = leaseSet->GetStoreType (); // 1 for LeaseSet htobe32buf (payload + DATABASE_STORE_REPLY_TOKEN_OFFSET, 0); size_t size = DATABASE_STORE_HEADER_SIZE; memcpy (payload + size, leaseSet->GetBuffer (), leaseSet->GetBufferLen ()); @@ -274,7 +337,7 @@ namespace i2p return m; } - std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr leaseSet, uint32_t replyToken, std::shared_ptr replyTunnel) + std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr leaseSet, uint32_t replyToken, std::shared_ptr replyTunnel) { if (!leaseSet) return nullptr; auto m = NewI2NPShortMessage (); @@ -308,172 +371,9 @@ namespace i2p return !msg->GetPayload ()[DATABASE_STORE_TYPE_OFFSET]; // 0- RouterInfo } - static uint16_t g_MaxNumTransitTunnels = DEFAULT_MAX_NUM_TRANSIT_TUNNELS; // TODO: - void SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels) - { - if (maxNumTransitTunnels > 0 && maxNumTransitTunnels <= 10000 && g_MaxNumTransitTunnels != maxNumTransitTunnels) - { - LogPrint (eLogDebug, "I2NP: Max number of transit tunnels set to ", maxNumTransitTunnels); - g_MaxNumTransitTunnels = maxNumTransitTunnels; - } - } - - bool HandleBuildRequestRecords (int num, uint8_t * records, uint8_t * clearText) - { - for (int i = 0; i < num; i++) - { - uint8_t * record = records + i*TUNNEL_BUILD_RECORD_SIZE; - if (!memcmp (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)i2p::context.GetRouterInfo ().GetIdentHash (), 16)) - { - LogPrint (eLogDebug, "I2NP: Build request record ", i, " is ours"); - BN_CTX * ctx = BN_CTX_new (); - i2p::context.DecryptTunnelBuildRecord (record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, clearText, ctx); - BN_CTX_free (ctx); - // replace record to reply - if (i2p::context.AcceptsTunnels () && - i2p::tunnel::tunnels.GetTransitTunnels ().size () <= g_MaxNumTransitTunnels && - !i2p::transport::transports.IsBandwidthExceeded () && - !i2p::transport::transports.IsTransitBandwidthExceeded ()) - { - auto transitTunnel = i2p::tunnel::CreateTransitTunnel ( - bufbe32toh (clearText + BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET), - clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, - bufbe32toh (clearText + BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), - clearText + BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET, - clearText + BUILD_REQUEST_RECORD_IV_KEY_OFFSET, - clearText[BUILD_REQUEST_RECORD_FLAG_OFFSET] & 0x80, - clearText[BUILD_REQUEST_RECORD_FLAG_OFFSET ] & 0x40); - i2p::tunnel::tunnels.AddTransitTunnel (transitTunnel); - record[BUILD_RESPONSE_RECORD_RET_OFFSET] = 0; - } - else - record[BUILD_RESPONSE_RECORD_RET_OFFSET] = 30; // always reject with bandwidth reason (30) - - //TODO: fill filler - SHA256 (record + BUILD_RESPONSE_RECORD_PADDING_OFFSET, BUILD_RESPONSE_RECORD_PADDING_SIZE + 1, // + 1 byte of ret - record + BUILD_RESPONSE_RECORD_HASH_OFFSET); - // encrypt reply - i2p::crypto::CBCEncryption encryption; - for (int j = 0; j < num; j++) - { - encryption.SetKey (clearText + BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET); - encryption.SetIV (clearText + BUILD_REQUEST_RECORD_REPLY_IV_OFFSET); - uint8_t * reply = records + j*TUNNEL_BUILD_RECORD_SIZE; - encryption.Encrypt(reply, TUNNEL_BUILD_RECORD_SIZE, reply); - } - return true; - } - } - return false; - } - - void HandleVariableTunnelBuildMsg (uint32_t replyMsgID, uint8_t * buf, size_t len) - { - int num = buf[0]; - LogPrint (eLogDebug, "I2NP: VariableTunnelBuild ", num, " records"); - if (len < num*BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE + 1) - { - LogPrint (eLogError, "VaribleTunnelBuild message of ", num, " records is too short ", len); - return; - } - - auto tunnel = i2p::tunnel::tunnels.GetPendingInboundTunnel (replyMsgID); - if (tunnel) - { - // endpoint of inbound tunnel - LogPrint (eLogDebug, "I2NP: VariableTunnelBuild reply for tunnel ", tunnel->GetTunnelID ()); - if (tunnel->HandleTunnelBuildResponse (buf, len)) - { - LogPrint (eLogInfo, "I2NP: Inbound tunnel ", tunnel->GetTunnelID (), " has been created"); - tunnel->SetState (i2p::tunnel::eTunnelStateEstablished); - i2p::tunnel::tunnels.AddInboundTunnel (tunnel); - } - else - { - LogPrint (eLogInfo, "I2NP: Inbound tunnel ", tunnel->GetTunnelID (), " has been declined"); - tunnel->SetState (i2p::tunnel::eTunnelStateBuildFailed); - } - } - else - { - uint8_t clearText[BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE]; - if (HandleBuildRequestRecords (num, buf + 1, clearText)) - { - if (clearText[BUILD_REQUEST_RECORD_FLAG_OFFSET] & 0x40) // we are endpoint of outboud tunnel - { - // so we send it to reply tunnel - transports.SendMessage (clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, - CreateTunnelGatewayMsg (bufbe32toh (clearText + BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), - eI2NPVariableTunnelBuildReply, buf, len, - bufbe32toh (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); - } - else - transports.SendMessage (clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, - CreateI2NPMessage (eI2NPVariableTunnelBuild, buf, len, - bufbe32toh (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); - } - } - } - - void HandleTunnelBuildMsg (uint8_t * buf, size_t len) - { - if (len < NUM_TUNNEL_BUILD_RECORDS*BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE) - { - LogPrint (eLogError, "TunnelBuild message is too short ", len); - return; - } - uint8_t clearText[BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE]; - if (HandleBuildRequestRecords (NUM_TUNNEL_BUILD_RECORDS, buf, clearText)) - { - if (clearText[BUILD_REQUEST_RECORD_FLAG_OFFSET] & 0x40) // we are endpoint of outbound tunnel - { - // so we send it to reply tunnel - transports.SendMessage (clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, - CreateTunnelGatewayMsg (bufbe32toh (clearText + BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), - eI2NPTunnelBuildReply, buf, len, - bufbe32toh (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); - } - else - transports.SendMessage (clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, - CreateI2NPMessage (eI2NPTunnelBuild, buf, len, - bufbe32toh (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); - } - } - - void HandleVariableTunnelBuildReplyMsg (uint32_t replyMsgID, uint8_t * buf, size_t len) - { - int num = buf[0]; - LogPrint (eLogDebug, "I2NP: VariableTunnelBuildReplyMsg of ", num, " records replyMsgID=", replyMsgID); - if (len < num*BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE + 1) - { - LogPrint (eLogError, "VaribleTunnelBuildReply message of ", num, " records is too short ", len); - return; - } - - auto tunnel = i2p::tunnel::tunnels.GetPendingOutboundTunnel (replyMsgID); - if (tunnel) - { - // reply for outbound tunnel - if (tunnel->HandleTunnelBuildResponse (buf, len)) - { - LogPrint (eLogInfo, "I2NP: Outbound tunnel ", tunnel->GetTunnelID (), " has been created"); - tunnel->SetState (i2p::tunnel::eTunnelStateEstablished); - i2p::tunnel::tunnels.AddOutboundTunnel (tunnel); - } - else - { - LogPrint (eLogInfo, "I2NP: Outbound tunnel ", tunnel->GetTunnelID (), " has been declined"); - tunnel->SetState (i2p::tunnel::eTunnelStateBuildFailed); - } - } - else - LogPrint (eLogWarning, "I2NP: Pending tunnel for message ", replyMsgID, " not found"); - } - - std::shared_ptr CreateTunnelDataMsg (const uint8_t * buf) { - auto msg = NewI2NPTunnelMessage (); + auto msg = NewI2NPTunnelMessage (false); msg->Concat (buf, i2p::tunnel::TUNNEL_DATA_MSG_SIZE); msg->FillI2NPMessageHeader (eI2NPTunnelData); return msg; @@ -481,7 +381,7 @@ namespace i2p std::shared_ptr CreateTunnelDataMsg (uint32_t tunnelID, const uint8_t * payload) { - auto msg = NewI2NPTunnelMessage (); + auto msg = NewI2NPTunnelMessage (false); htobe32buf (msg->GetPayload (), tunnelID); msg->len += 4; // tunnelID msg->Concat (payload, i2p::tunnel::TUNNEL_DATA_MSG_SIZE - 4); @@ -489,9 +389,9 @@ namespace i2p return msg; } - std::shared_ptr CreateEmptyTunnelDataMsg () + std::shared_ptr CreateEmptyTunnelDataMsg (bool endpoint) { - auto msg = NewI2NPTunnelMessage (); + auto msg = NewI2NPTunnelMessage (endpoint); msg->len += i2p::tunnel::TUNNEL_DATA_MSG_SIZE; return msg; } @@ -504,7 +404,7 @@ namespace i2p htobe16buf (payload + TUNNEL_GATEWAY_HEADER_LENGTH_OFFSET, len); msg->len += TUNNEL_GATEWAY_HEADER_SIZE; if (msg->Concat (buf, len) < len) - LogPrint (eLogError, "I2NP: tunnel gateway buffer overflow ", msg->maxLen); + LogPrint (eLogError, "I2NP: Tunnel gateway buffer overflow ", msg->maxLen); msg->FillI2NPMessageHeader (eI2NPTunnelGateway); return msg; } @@ -524,7 +424,11 @@ namespace i2p return msg; } else - return CreateTunnelGatewayMsg (tunnelID, msg->GetBuffer (), msg->GetLength ()); + { + auto newMsg = CreateTunnelGatewayMsg (tunnelID, msg->GetBuffer (), msg->GetLength ()); + if (msg->onDrop) newMsg->onDrop = msg->onDrop; + return newMsg; + } } std::shared_ptr CreateTunnelGatewayMsg (uint32_t tunnelID, I2NPMessageType msgType, @@ -535,7 +439,7 @@ namespace i2p msg->offset += gatewayMsgOffset; msg->len += gatewayMsgOffset; if (msg->Concat (buf, len) < len) - LogPrint (eLogError, "I2NP: tunnel gateway buffer overflow ", msg->maxLen); + LogPrint (eLogError, "I2NP: Tunnel gateway buffer overflow ", msg->maxLen); msg->FillI2NPMessageHeader (msgType, replyMsgID); // create content message len = msg->GetLength (); msg->offset -= gatewayMsgOffset; @@ -550,55 +454,18 @@ namespace i2p { if (len < I2NP_HEADER_SIZE_OFFSET + 2) { - LogPrint (eLogError, "I2NP: message length ", len, " is smaller than header"); + LogPrint (eLogError, "I2NP: Message length ", len, " is smaller than header"); return len; } auto l = bufbe16toh (msg + I2NP_HEADER_SIZE_OFFSET) + I2NP_HEADER_SIZE; if (l > len) { - LogPrint (eLogError, "I2NP: message length ", l, " exceeds buffer length ", len); + LogPrint (eLogError, "I2NP: Message length ", l, " exceeds buffer length ", len); l = len; } return l; } - void HandleI2NPMessage (uint8_t * msg, size_t len) - { - if (len < I2NP_HEADER_SIZE) - { - LogPrint (eLogError, "I2NP: message length ", len, " is smaller than header"); - return; - } - uint8_t typeID = msg[I2NP_HEADER_TYPEID_OFFSET]; - uint32_t msgID = bufbe32toh (msg + I2NP_HEADER_MSGID_OFFSET); - LogPrint (eLogDebug, "I2NP: msg received len=", len,", type=", (int)typeID, ", msgID=", (unsigned int)msgID); - uint8_t * buf = msg + I2NP_HEADER_SIZE; - auto size = bufbe16toh (msg + I2NP_HEADER_SIZE_OFFSET); - len -= I2NP_HEADER_SIZE; - if (size > len) - { - LogPrint (eLogError, "I2NP: payload size ", size, " exceeds buffer length ", len); - size = len; - } - switch (typeID) - { - case eI2NPVariableTunnelBuild: - HandleVariableTunnelBuildMsg (msgID, buf, size); - break; - case eI2NPVariableTunnelBuildReply: - HandleVariableTunnelBuildReplyMsg (msgID, buf, size); - break; - case eI2NPTunnelBuild: - HandleTunnelBuildMsg (buf, size); - break; - case eI2NPTunnelBuildReply: - // TODO: - break; - default: - LogPrint (eLogWarning, "I2NP: Unexpected message ", (int)typeID); - } - } - void HandleI2NPMessage (std::shared_ptr msg) { if (msg) @@ -608,29 +475,34 @@ namespace i2p switch (typeID) { case eI2NPTunnelData: - i2p::tunnel::tunnels.PostTunnelData (msg); + if (!msg->from) + i2p::tunnel::tunnels.PostTunnelData (msg); break; case eI2NPTunnelGateway: - i2p::tunnel::tunnels.PostTunnelData (msg); + if (!msg->from) + i2p::tunnel::tunnels.PostTunnelData (msg); break; case eI2NPGarlic: { - if (msg->from) - { - if (msg->from->GetTunnelPool ()) - msg->from->GetTunnelPool ()->ProcessGarlicMessage (msg); - else - LogPrint (eLogInfo, "I2NP: Local destination for garlic doesn't exist anymore"); - } + if (msg->from && msg->from->GetTunnelPool ()) + msg->from->GetTunnelPool ()->ProcessGarlicMessage (msg); else i2p::context.ProcessGarlicMessage (msg); break; } case eI2NPDatabaseStore: + // forward to netDb if came directly or through exploratory tunnel as response to our request + if (!msg->from || !msg->from->GetTunnelPool () || msg->from->GetTunnelPool ()->IsExploratory ()) + i2p::data::netdb.PostI2NPMsg (msg); + break; case eI2NPDatabaseSearchReply: + if (!msg->from || !msg->from->GetTunnelPool () || msg->from->GetTunnelPool ()->IsExploratory ()) + i2p::data::netdb.PostDatabaseSearchReplyMsg (msg); + break; case eI2NPDatabaseLookup: - // forward to netDb - i2p::data::netdb.PostI2NPMsg (msg); + // forward to netDb if floodfill and came directly + if (!msg->from && i2p::context.IsFloodfill ()) + i2p::data::netdb.PostI2NPMsg (msg); break; case eI2NPDeliveryStatus: { @@ -640,15 +512,25 @@ namespace i2p i2p::context.ProcessDeliveryStatusMessage (msg); break; } + case eI2NPTunnelTest: + if (msg->from && msg->from->GetTunnelPool ()) + msg->from->GetTunnelPool ()->ProcessTunnelTest (msg); + break; case eI2NPVariableTunnelBuild: - case eI2NPVariableTunnelBuildReply: case eI2NPTunnelBuild: + case eI2NPShortTunnelBuild: + // forward to tunnel thread + if (!msg->from) + i2p::tunnel::tunnels.PostTunnelData (msg); + break; + case eI2NPVariableTunnelBuildReply: case eI2NPTunnelBuildReply: + case eI2NPShortTunnelBuildReply: // forward to tunnel thread i2p::tunnel::tunnels.PostTunnelData (msg); break; default: - HandleI2NPMessage (msg->GetBuffer (), msg->GetLength ()); + LogPrint(eLogError, "I2NP: Unexpected I2NP message with type ", int(typeID), " during handling; skipping"); } } } @@ -658,7 +540,7 @@ namespace i2p Flush (); } - void I2NPMessagesHandler::PutNextMessage (std::shared_ptr msg) + void I2NPMessagesHandler::PutNextMessage (std::shared_ptr&& msg) { if (msg) { @@ -679,14 +561,8 @@ namespace i2p void I2NPMessagesHandler::Flush () { if (!m_TunnelMsgs.empty ()) - { i2p::tunnel::tunnels.PostTunnelData (m_TunnelMsgs); - m_TunnelMsgs.clear (); - } if (!m_TunnelGatewayMsgs.empty ()) - { i2p::tunnel::tunnels.PostTunnelData (m_TunnelGatewayMsgs); - m_TunnelGatewayMsgs.clear (); - } } } diff --git a/libi2pd/I2NPProtocol.h b/libi2pd/I2NPProtocol.h index 5160acec..911a53bf 100644 --- a/libi2pd/I2NPProtocol.h +++ b/libi2pd/I2NPProtocol.h @@ -1,10 +1,20 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef I2NP_PROTOCOL_H__ #define I2NP_PROTOCOL_H__ #include #include -#include +#include #include +#include +#include #include "Crypto.h" #include "I2PEndian.h" #include "Identity.h" @@ -27,7 +37,7 @@ namespace i2p const size_t I2NP_SHORT_HEADER_SIZE = I2NP_SHORT_HEADER_EXPIRATION_OFFSET + 4; // I2NP NTCP2 header - const size_t I2NP_NTCP2_HEADER_SIZE = I2NP_HEADER_EXPIRATION_OFFSET + 4; + const size_t I2NP_NTCP2_HEADER_SIZE = I2NP_HEADER_EXPIRATION_OFFSET + 4; // Tunnel Gateway header const size_t TUNNEL_GATEWAY_HEADER_TUNNELID_OFFSET = 0; @@ -39,6 +49,11 @@ namespace i2p const size_t DELIVERY_STATUS_TIMESTAMP_OFFSET = DELIVERY_STATUS_MSGID_OFFSET + 4; const size_t DELIVERY_STATUS_SIZE = DELIVERY_STATUS_TIMESTAMP_OFFSET + 8; + // TunnelTest + const size_t TUNNEL_TEST_MSGID_OFFSET = 0; + const size_t TUNNEL_TEST_TIMESTAMP_OFFSET = TUNNEL_TEST_MSGID_OFFSET + 4; + const size_t TUNNEL_TEST_SIZE = TUNNEL_TEST_TIMESTAMP_OFFSET + 8; + // DatabaseStore const size_t DATABASE_STORE_KEY_OFFSET = 0; const size_t DATABASE_STORE_TYPE_OFFSET = DATABASE_STORE_KEY_OFFSET + 32; @@ -47,35 +62,52 @@ namespace i2p // TunnelBuild const size_t TUNNEL_BUILD_RECORD_SIZE = 528; - - //BuildRequestRecordClearText - const size_t BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET = 0; - const size_t BUILD_REQUEST_RECORD_OUR_IDENT_OFFSET = BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET + 4; - const size_t BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET = BUILD_REQUEST_RECORD_OUR_IDENT_OFFSET + 32; - const size_t BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET = BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET + 4; - const size_t BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET = BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET + 32; - const size_t BUILD_REQUEST_RECORD_IV_KEY_OFFSET = BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET + 32; - const size_t BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET = BUILD_REQUEST_RECORD_IV_KEY_OFFSET + 32; - const size_t BUILD_REQUEST_RECORD_REPLY_IV_OFFSET = BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET + 32; - const size_t BUILD_REQUEST_RECORD_FLAG_OFFSET = BUILD_REQUEST_RECORD_REPLY_IV_OFFSET + 16; - const size_t BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET = BUILD_REQUEST_RECORD_FLAG_OFFSET + 1; - const size_t BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET = BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET + 4; - const size_t BUILD_REQUEST_RECORD_PADDING_OFFSET = BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET + 4; - const size_t BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE = 222; + const size_t SHORT_TUNNEL_BUILD_RECORD_SIZE = 218; // BuildRequestRecordEncrypted const size_t BUILD_REQUEST_RECORD_TO_PEER_OFFSET = 0; const size_t BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET = BUILD_REQUEST_RECORD_TO_PEER_OFFSET + 16; - // BuildResponseRecord - const size_t BUILD_RESPONSE_RECORD_HASH_OFFSET = 0; - const size_t BUILD_RESPONSE_RECORD_PADDING_OFFSET = 32; - const size_t BUILD_RESPONSE_RECORD_PADDING_SIZE = 495; - const size_t BUILD_RESPONSE_RECORD_RET_OFFSET = BUILD_RESPONSE_RECORD_PADDING_OFFSET + BUILD_RESPONSE_RECORD_PADDING_SIZE; + // ECIES BuildRequestRecordClearText + const size_t ECIES_BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET = 0; + const size_t ECIES_BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET = ECIES_BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET + 4; + const size_t ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET = ECIES_BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET + 4; + const size_t ECIES_BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET = ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET + 32; + const size_t ECIES_BUILD_REQUEST_RECORD_IV_KEY_OFFSET = ECIES_BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET + 32; + const size_t ECIES_BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET = ECIES_BUILD_REQUEST_RECORD_IV_KEY_OFFSET + 32; + const size_t ECIES_BUILD_REQUEST_RECORD_REPLY_IV_OFFSET = ECIES_BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET + 32; + const size_t ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET = ECIES_BUILD_REQUEST_RECORD_REPLY_IV_OFFSET + 16; + const size_t ECIES_BUILD_REQUEST_RECORD_MORE_FLAGS_OFFSET = ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET + 1; + const size_t ECIES_BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET = ECIES_BUILD_REQUEST_RECORD_MORE_FLAGS_OFFSET + 3; + const size_t ECIES_BUILD_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET = ECIES_BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET + 4; + const size_t ECIES_BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET = ECIES_BUILD_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET + 4; + const size_t ECIES_BUILD_REQUEST_RECORD_PADDING_OFFSET = ECIES_BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET + 4; + const size_t ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE = 464; + + // ECIES BuildResponseRecord + const size_t ECIES_BUILD_RESPONSE_RECORD_OPTIONS_OFFSET = 0; + const size_t ECIES_BUILD_RESPONSE_RECORD_RET_OFFSET = 511; + + // ShortRequestRecordClearText + const size_t SHORT_REQUEST_RECORD_ENCRYPTED_OFFSET = 16; + const size_t SHORT_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET = 0; + const size_t SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET = SHORT_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET + 4; + const size_t SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET = SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET + 4; + const size_t SHORT_REQUEST_RECORD_FLAG_OFFSET = SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET + 32; + const size_t SHORT_REQUEST_RECORD_MORE_FLAGS_OFFSET = SHORT_REQUEST_RECORD_FLAG_OFFSET + 1; + const size_t SHORT_REQUEST_RECORD_LAYER_ENCRYPTION_TYPE = SHORT_REQUEST_RECORD_MORE_FLAGS_OFFSET + 2; + const size_t SHORT_REQUEST_RECORD_REQUEST_TIME_OFFSET = SHORT_REQUEST_RECORD_LAYER_ENCRYPTION_TYPE + 1; + const size_t SHORT_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET = SHORT_REQUEST_RECORD_REQUEST_TIME_OFFSET + 4; + const size_t SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET = SHORT_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET + 4; + const size_t SHORT_REQUEST_RECORD_PADDING_OFFSET = SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET + 4; + const size_t SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE = 154; + + // ShortResponseRecord + const size_t SHORT_RESPONSE_RECORD_OPTIONS_OFFSET = 0; + const size_t SHORT_RESPONSE_RECORD_RET_OFFSET = 201; enum I2NPMessageType { - eI2NPDummyMsg = 0, eI2NPDatabaseStore = 1, eI2NPDatabaseLookup = 2, eI2NPDatabaseSearchReply = 3, @@ -87,14 +119,20 @@ namespace i2p eI2NPTunnelBuild = 21, eI2NPTunnelBuildReply = 22, eI2NPVariableTunnelBuild = 23, - eI2NPVariableTunnelBuildReply = 24 + eI2NPVariableTunnelBuildReply = 24, + eI2NPShortTunnelBuild = 25, + eI2NPShortTunnelBuildReply = 26, + eI2NPTunnelTest = 231 }; + const uint8_t TUNNEL_BUILD_RECORD_GATEWAY_FLAG = 0x80; + const uint8_t TUNNEL_BUILD_RECORD_ENDPOINT_FLAG = 0x40; const int NUM_TUNNEL_BUILD_RECORDS = 8; // DatabaseLookup flags const uint8_t DATABASE_LOOKUP_DELIVERY_FLAG = 0x01; const uint8_t DATABASE_LOOKUP_ENCRYPTION_FLAG = 0x02; + const uint8_t DATABASE_LOOKUP_ECIES_FLAG = 0x10; const uint8_t DATABASE_LOOKUP_TYPE_FLAGS_MASK = 0x0C; const uint8_t DATABASE_LOOKUP_TYPE_NORMAL_LOOKUP = 0; const uint8_t DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP = 0x04; // 0100 @@ -107,8 +145,16 @@ namespace tunnel class TunnelPool; } + const int CONGESTION_LEVEL_MEDIUM = 70; + const int CONGESTION_LEVEL_HIGH = 90; + const int CONGESTION_LEVEL_FULL = 100; + const size_t I2NP_MAX_MESSAGE_SIZE = 62708; const size_t I2NP_MAX_SHORT_MESSAGE_SIZE = 4096; + const size_t I2NP_MAX_MEDIUM_MESSAGE_SIZE = 16384; + const unsigned int I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_FACTOR = 3; // multiples of RTT + const unsigned int I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MIN = 200000; // in microseconds + const unsigned int I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX = 2000000; // in microseconds const unsigned int I2NP_MESSAGE_EXPIRATION_TIMEOUT = 8000; // in milliseconds (as initial RTT) const unsigned int I2NP_MESSAGE_CLOCK_SKEW = 60*1000; // 1 minute in milliseconds @@ -117,9 +163,11 @@ namespace tunnel uint8_t * buf; size_t len, offset, maxLen; std::shared_ptr from; + std::function onDrop; + uint64_t enqueueTime; // monotonic microseconds - I2NPMessage (): buf (nullptr),len (I2NP_HEADER_SIZE + 2), - offset(2), maxLen (0), from (nullptr) {}; // reserve 2 bytes for NTCP header + I2NPMessage (): buf (nullptr), len (I2NP_HEADER_SIZE + 2), + offset(2), maxLen (0), from (nullptr), enqueueTime (0) {}; // reserve 2 bytes for NTCP header // header accessors uint8_t * GetHeader () { return GetBuffer (); }; @@ -129,7 +177,9 @@ namespace tunnel void SetMsgID (uint32_t msgID) { htobe32buf (GetHeader () + I2NP_HEADER_MSGID_OFFSET, msgID); }; uint32_t GetMsgID () const { return bufbe32toh (GetHeader () + I2NP_HEADER_MSGID_OFFSET); }; void SetExpiration (uint64_t expiration) { htobe64buf (GetHeader () + I2NP_HEADER_EXPIRATION_OFFSET, expiration); }; + void SetEnqueueTime (uint64_t mts) { enqueueTime = mts; }; uint64_t GetExpiration () const { return bufbe64toh (GetHeader () + I2NP_HEADER_EXPIRATION_OFFSET); }; + uint64_t GetEnqueueTime () const { return enqueueTime; }; void SetSize (uint16_t size) { htobe16buf (GetHeader () + I2NP_HEADER_SIZE_OFFSET, size); }; uint16_t GetSize () const { return bufbe16toh (GetHeader () + I2NP_HEADER_SIZE_OFFSET); }; void UpdateSize () { SetSize (GetPayloadLength ()); }; @@ -208,8 +258,7 @@ namespace tunnel SetExpiration (bufbe32toh (ntcp2 + I2NP_HEADER_EXPIRATION_OFFSET)*1000LL); SetSize (len - offset - I2NP_HEADER_SIZE); SetChks (0); - } - + } void ToNTCP2 () { uint8_t * ntcp2 = GetNTCP2Header (); @@ -217,9 +266,12 @@ namespace tunnel memcpy (ntcp2 + I2NP_HEADER_TYPEID_OFFSET, GetHeader () + I2NP_HEADER_TYPEID_OFFSET, 5); // typeid + msgid } - void FillI2NPMessageHeader (I2NPMessageType msgType, uint32_t replyMsgID = 0); + void FillI2NPMessageHeader (I2NPMessageType msgType, uint32_t replyMsgID = 0, bool checksum = true); void RenewI2NPMessageHeader (); bool IsExpired () const; + bool IsExpired (uint64_t ts) const; // in milliseconds + + void Drop () { if (onDrop) { onDrop (); onDrop = nullptr; }; } }; template @@ -231,34 +283,32 @@ namespace tunnel std::shared_ptr NewI2NPMessage (); std::shared_ptr NewI2NPShortMessage (); - std::shared_ptr NewI2NPTunnelMessage (); + std::shared_ptr NewI2NPMediumMessage (); + std::shared_ptr NewI2NPTunnelMessage (bool endpoint); std::shared_ptr NewI2NPMessage (size_t len); std::shared_ptr CreateI2NPMessage (I2NPMessageType msgType, const uint8_t * buf, size_t len, uint32_t replyMsgID = 0); std::shared_ptr CreateI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from = nullptr); std::shared_ptr CopyI2NPMessage (std::shared_ptr msg); + std::shared_ptr CreateTunnelTestMsg (uint32_t msgID); std::shared_ptr CreateDeliveryStatusMsg (uint32_t msgID); std::shared_ptr CreateRouterInfoDatabaseLookupMsg (const uint8_t * key, const uint8_t * from, - uint32_t replyTunnelID, bool exploratory = false, std::set * excludedPeers = nullptr); + uint32_t replyTunnelID, bool exploratory = false, std::unordered_set * excludedPeers = nullptr); std::shared_ptr CreateLeaseSetDatabaseLookupMsg (const i2p::data::IdentHash& dest, - const std::set& excludedFloodfills, - std::shared_ptr replyTunnel, const uint8_t * replyKey, const uint8_t * replyTag); + const std::unordered_set& excludedFloodfills, + std::shared_ptr replyTunnel, + const uint8_t * replyKey, const uint8_t * replyTag, bool replyECIES = false); std::shared_ptr CreateDatabaseSearchReply (const i2p::data::IdentHash& ident, std::vector routers); - std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr router = nullptr, uint32_t replyToken = 0); - std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr leaseSet); // for floodfill only + std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr router = nullptr, uint32_t replyToken = 0, std::shared_ptr replyTunnel = nullptr); + std::shared_ptr CreateDatabaseStoreMsg (const i2p::data::IdentHash& storeHash, std::shared_ptr leaseSet); // for floodfill only std::shared_ptr CreateDatabaseStoreMsg (std::shared_ptr leaseSet, uint32_t replyToken = 0, std::shared_ptr replyTunnel = nullptr); bool IsRouterInfoMsg (std::shared_ptr msg); - bool HandleBuildRequestRecords (int num, uint8_t * records, uint8_t * clearText); - void HandleVariableTunnelBuildMsg (uint32_t replyMsgID, uint8_t * buf, size_t len); - void HandleVariableTunnelBuildReplyMsg (uint32_t replyMsgID, uint8_t * buf, size_t len); - void HandleTunnelBuildMsg (uint8_t * buf, size_t len); - std::shared_ptr CreateTunnelDataMsg (const uint8_t * buf); std::shared_ptr CreateTunnelDataMsg (uint32_t tunnelID, const uint8_t * payload); - std::shared_ptr CreateEmptyTunnelDataMsg (); + std::shared_ptr CreateEmptyTunnelDataMsg (bool endpoint); std::shared_ptr CreateTunnelGatewayMsg (uint32_t tunnelID, const uint8_t * buf, size_t len); std::shared_ptr CreateTunnelGatewayMsg (uint32_t tunnelID, I2NPMessageType msgType, @@ -266,7 +316,6 @@ namespace tunnel std::shared_ptr CreateTunnelGatewayMsg (uint32_t tunnelID, std::shared_ptr msg); size_t GetI2NPMessageLength (const uint8_t * msg, size_t len); - void HandleI2NPMessage (uint8_t * msg, size_t len); void HandleI2NPMessage (std::shared_ptr msg); class I2NPMessagesHandler @@ -274,16 +323,13 @@ namespace tunnel public: ~I2NPMessagesHandler (); - void PutNextMessage (std::shared_ptr msg); + void PutNextMessage (std::shared_ptr&& msg); void Flush (); private: - std::vector > m_TunnelMsgs, m_TunnelGatewayMsgs; + std::list > m_TunnelMsgs, m_TunnelGatewayMsgs; }; - - const uint16_t DEFAULT_MAX_NUM_TRANSIT_TUNNELS = 2500; - void SetMaxNumTransitTunnels (uint16_t maxNumTransitTunnels); } #endif diff --git a/libi2pd/I2PEndian.cpp b/libi2pd/I2PEndian.cpp index b8a041d8..5496f144 100644 --- a/libi2pd/I2PEndian.cpp +++ b/libi2pd/I2PEndian.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "I2PEndian.h" // http://habrahabr.ru/post/121811/ @@ -42,42 +50,3 @@ uint64_t be64toh(uint64_t big64) return u64.raw_value; } #endif - -/* it can be used in Windows 8 -#include - -uint16_t htobe16(uint16_t int16) -{ - return htons(int16); -} - -uint32_t htobe32(uint32_t int32) -{ - return htonl(int32); -} - -uint64_t htobe64(uint64_t int64) -{ - // http://msdn.microsoft.com/en-us/library/windows/desktop/jj710199%28v=vs.85%29.aspx - //return htonll(int64); - return 0; -} - - -uint16_t be16toh(uint16_t big16) -{ - return ntohs(big16); -} - -uint32_t be32toh(uint32_t big32) -{ - return ntohl(big32); -} - -uint64_t be64toh(uint64_t big64) -{ - // http://msdn.microsoft.com/en-us/library/windows/desktop/jj710199%28v=vs.85%29.aspx - //return ntohll(big64); - return 0; -} -*/ \ No newline at end of file diff --git a/libi2pd/I2PEndian.h b/libi2pd/I2PEndian.h index 0798f688..681a4999 100644 --- a/libi2pd/I2PEndian.h +++ b/libi2pd/I2PEndian.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef I2PENDIAN_H__ #define I2PENDIAN_H__ #include @@ -5,10 +13,11 @@ #if defined(__FreeBSD__) || defined(__NetBSD__) #include -#elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__GLIBC__) -#include -#elif defined(__APPLE__) && defined(__MACH__) +#elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__OpenBSD__) || defined(__GLIBC__) || defined(__HAIKU__) +#include + +#elif defined(__APPLE__) && defined(__MACH__) #include #define htobe16(x) OSSwapHostToBigInt16(x) @@ -26,6 +35,40 @@ #define be64toh(x) OSSwapBigToHostInt64(x) #define le64toh(x) OSSwapLittleToHostInt64(x) +#elif defined(_WIN32) +#if defined(_MSC_VER) +#include +#define htobe16(x) _byteswap_ushort(x) +#define htole16(x) (x) +#define be16toh(x) _byteswap_ushort(x) +#define le16toh(x) (x) + +#define htobe32(x) _byteswap_ulong(x) +#define htole32(x) (x) +#define be32toh(x) _byteswap_ulong(x) +#define le32toh(x) (x) + +#define htobe64(x) _byteswap_uint64(x) +#define htole64(x) (x) +#define be64toh(x) _byteswap_uint64(x) +#define le64toh(x) (x) +#else +#define htobe16(x) __builtin_bswap16(x) +#define htole16(x) (x) +#define be16toh(x) __builtin_bswap16(x) +#define le16toh(x) (x) + +#define htobe32(x) __builtin_bswap32(x) +#define htole32(x) (x) +#define be32toh(x) __builtin_bswap32(x) +#define le32toh(x) (x) + +#define htobe64(x) __builtin_bswap64(x) +#define htole64(x) (x) +#define be64toh(x) __builtin_bswap64(x) +#define le64toh(x) (x) +#endif + #else #define NEEDS_LOCAL_ENDIAN #include @@ -128,5 +171,20 @@ inline void htole64buf(void *buf, uint64_t big64) htobuf64(buf, htole64(big64)); } +inline uint16_t bufle16toh(const void *buf) +{ + return le16toh(buf16toh(buf)); +} + +inline uint32_t bufle32toh(const void *buf) +{ + return le32toh(buf32toh(buf)); +} + +inline uint64_t bufle64toh(const void *buf) +{ + return le64toh(buf64toh(buf)); +} + #endif // I2PENDIAN_H__ diff --git a/libi2pd/Identity.cpp b/libi2pd/Identity.cpp index f088d3f2..865beeb8 100644 --- a/libi2pd/Identity.cpp +++ b/libi2pd/Identity.cpp @@ -1,7 +1,16 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "Crypto.h" #include "I2PEndian.h" #include "Log.h" #include "Timestamp.h" +#include "CryptoKey.h" #include "Identity.h" namespace i2p @@ -11,37 +20,49 @@ namespace data Identity& Identity::operator=(const Keys& keys) { // copy public and signing keys together - memcpy (publicKey, keys.publicKey, sizeof (publicKey) + sizeof (signingKey)); + memcpy (publicKey, keys.publicKey, sizeof (publicKey)); + memcpy (signingKey, keys.signingKey, sizeof (signingKey)); memset (certificate, 0, sizeof (certificate)); return *this; } size_t Identity::FromBuffer (const uint8_t * buf, size_t len) { - if ( len < DEFAULT_IDENTITY_SIZE ) { - // buffer too small, don't overflow - return 0; - } - memcpy (publicKey, buf, DEFAULT_IDENTITY_SIZE); + if (len < DEFAULT_IDENTITY_SIZE) return 0; // buffer too small, don't overflow + memcpy (this, buf, DEFAULT_IDENTITY_SIZE); return DEFAULT_IDENTITY_SIZE; } IdentHash Identity::Hash () const { IdentHash hash; - SHA256(publicKey, DEFAULT_IDENTITY_SIZE, hash); + SHA256((const uint8_t *)this, DEFAULT_IDENTITY_SIZE, hash); return hash; } IdentityEx::IdentityEx (): - m_IsVerifierCreated (false), m_ExtendedLen (0), m_ExtendedBuffer (nullptr) + m_ExtendedLen (0) { } - IdentityEx::IdentityEx(const uint8_t * publicKey, const uint8_t * signingKey, SigningKeyType type, CryptoKeyType cryptoType): - m_IsVerifierCreated (false) + IdentityEx::IdentityEx(const uint8_t * publicKey, const uint8_t * signingKey, SigningKeyType type, CryptoKeyType cryptoType) { - memcpy (m_StandardIdentity.publicKey, publicKey, 256); // publicKey in awlays assumed 256 regardless actual size, padding must be taken care of + uint8_t randomPaddingBlock[32]; + RAND_bytes (randomPaddingBlock, 32); + if (cryptoType == CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + { + memcpy (m_StandardIdentity.publicKey, publicKey ? publicKey : randomPaddingBlock, 32); + for (int i = 0; i < 7; i++) // 224 bytes + memcpy (m_StandardIdentity.publicKey + 32*(i + 1), randomPaddingBlock, 32); + } + else + { + if (publicKey) + memcpy (m_StandardIdentity.publicKey, publicKey, 256); + else + for (int i = 0; i < 8; i++) // 256 bytes + memcpy (m_StandardIdentity.publicKey + 32*i, randomPaddingBlock, 32); + } if (type != SIGNING_KEY_TYPE_DSA_SHA1) { size_t excessLen = 0; @@ -50,7 +71,7 @@ namespace data { case SIGNING_KEY_TYPE_ECDSA_SHA256_P256: { - size_t padding = 128 - i2p::crypto::ECDSAP256_KEY_LENGTH; // 64 = 128 - 64 + size_t padding = 128 - i2p::crypto::ECDSAP256_KEY_LENGTH; // 64 = 128 - 64 RAND_bytes (m_StandardIdentity.signingKey, padding); memcpy (m_StandardIdentity.signingKey + padding, signingKey, i2p::crypto::ECDSAP256_KEY_LENGTH); break; @@ -79,7 +100,8 @@ namespace data case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: { size_t padding = 128 - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; // 96 = 128 - 32 - RAND_bytes (m_StandardIdentity.signingKey, padding); + for (int i = 0; i < 3; i++) // 96 bytes + memcpy (m_StandardIdentity.signingKey + 32*i, randomPaddingBlock, 32); memcpy (m_StandardIdentity.signingKey + padding, signingKey, i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH); break; } @@ -98,6 +120,17 @@ namespace data memcpy (m_StandardIdentity.signingKey, signingKey, i2p::crypto::GOSTR3410_512_PUBLIC_KEY_LENGTH); break; } +#if OPENSSL_PQ + case SIGNING_KEY_TYPE_MLDSA44: + { + memcpy (m_StandardIdentity, signingKey, 384); + excessLen = i2p::crypto::MLDSA44_PUBLIC_KEY_LENGTH - 384; + excessBuf = new uint8_t[excessLen]; + memcpy (excessBuf, signingKey + 384, excessLen); + cryptoType = 0xFF; // crypto key is not used + break; + } +#endif default: LogPrint (eLogError, "Identity: Signing key type ", (int)type, " is not supported"); } @@ -106,12 +139,19 @@ namespace data m_StandardIdentity.certificate[0] = CERTIFICATE_TYPE_KEY; htobe16buf (m_StandardIdentity.certificate + 1, m_ExtendedLen); // fill extended buffer - m_ExtendedBuffer = new uint8_t[m_ExtendedLen]; htobe16buf (m_ExtendedBuffer, type); htobe16buf (m_ExtendedBuffer + 2, cryptoType); if (excessLen && excessBuf) { - memcpy (m_ExtendedBuffer + 4, excessBuf, excessLen); + if (m_ExtendedLen > MAX_EXTENDED_BUFFER_SIZE) + { + auto newBuf = new uint8_t[m_ExtendedLen]; + memcpy (newBuf, m_ExtendedBuffer, 4); + memcpy (newBuf + 4, excessBuf, excessLen); + m_ExtendedBufferPtr = newBuf; + } + else + memcpy (m_ExtendedBuffer + 4, excessBuf, excessLen); delete[] excessBuf; } // calculate ident hash @@ -123,7 +163,6 @@ namespace data memset (m_StandardIdentity.certificate, 0, sizeof (m_StandardIdentity.certificate)); m_IdentHash = m_StandardIdentity.Hash (); m_ExtendedLen = 0; - m_ExtendedBuffer = nullptr; } CreateVerifier (); } @@ -141,26 +180,27 @@ namespace data } IdentityEx::IdentityEx (const uint8_t * buf, size_t len): - m_IsVerifierCreated (false), m_ExtendedLen (0), m_ExtendedBuffer (nullptr) + m_ExtendedLen (0) { FromBuffer (buf, len); } IdentityEx::IdentityEx (const IdentityEx& other): - m_IsVerifierCreated (false), m_ExtendedLen (0), m_ExtendedBuffer (nullptr) + m_ExtendedLen (0) { *this = other; } IdentityEx::IdentityEx (const Identity& standard): - m_IsVerifierCreated (false), m_ExtendedLen (0), m_ExtendedBuffer (nullptr) + m_ExtendedLen (0) { *this = standard; } IdentityEx::~IdentityEx () { - delete[] m_ExtendedBuffer; + if (m_ExtendedLen > MAX_EXTENDED_BUFFER_SIZE) + delete[] m_ExtendedBufferPtr; } IdentityEx& IdentityEx::operator=(const IdentityEx& other) @@ -168,18 +208,32 @@ namespace data memcpy (&m_StandardIdentity, &other.m_StandardIdentity, DEFAULT_IDENTITY_SIZE); m_IdentHash = other.m_IdentHash; - delete[] m_ExtendedBuffer; + size_t oldLen = m_ExtendedLen; m_ExtendedLen = other.m_ExtendedLen; if (m_ExtendedLen > 0) { - m_ExtendedBuffer = new uint8_t[m_ExtendedLen]; - memcpy (m_ExtendedBuffer, other.m_ExtendedBuffer, m_ExtendedLen); + if (m_ExtendedLen > MAX_EXTENDED_BUFFER_SIZE) + { + if (oldLen > MAX_EXTENDED_BUFFER_SIZE) + { + if (m_ExtendedLen > oldLen) + { + delete[] m_ExtendedBufferPtr; + m_ExtendedBufferPtr = new uint8_t[m_ExtendedLen]; + } + } + else + m_ExtendedBufferPtr = new uint8_t[m_ExtendedLen]; + memcpy (m_ExtendedBufferPtr, other.m_ExtendedBufferPtr, m_ExtendedLen); + } + else + { + if (oldLen > MAX_EXTENDED_BUFFER_SIZE) delete[] m_ExtendedBufferPtr; + memcpy (m_ExtendedBuffer, other.m_ExtendedBuffer, m_ExtendedLen); + } } - else - m_ExtendedBuffer = nullptr; - m_Verifier = nullptr; - m_IsVerifierCreated = false; + CreateVerifier (); return *this; } @@ -188,13 +242,10 @@ namespace data { m_StandardIdentity = standard; m_IdentHash = m_StandardIdentity.Hash (); - - delete[] m_ExtendedBuffer; - m_ExtendedBuffer = nullptr; m_ExtendedLen = 0; m_Verifier = nullptr; - m_IsVerifierCreated = false; + CreateVerifier (); return *this; } @@ -203,21 +254,33 @@ namespace data { if (len < DEFAULT_IDENTITY_SIZE) { - LogPrint (eLogError, "Identity: buffer length ", len, " is too small"); + LogPrint (eLogError, "Identity: Buffer length ", len, " is too small"); return 0; } memcpy (&m_StandardIdentity, buf, DEFAULT_IDENTITY_SIZE); - if(m_ExtendedBuffer) delete[] m_ExtendedBuffer; - m_ExtendedBuffer = nullptr; - + size_t oldLen = m_ExtendedLen; m_ExtendedLen = bufbe16toh (m_StandardIdentity.certificate + 1); if (m_ExtendedLen) { if (m_ExtendedLen + DEFAULT_IDENTITY_SIZE <= len) { - m_ExtendedBuffer = new uint8_t[m_ExtendedLen]; - memcpy (m_ExtendedBuffer, buf + DEFAULT_IDENTITY_SIZE, m_ExtendedLen); + if (m_ExtendedLen > MAX_EXTENDED_BUFFER_SIZE) + { + if (oldLen > MAX_EXTENDED_BUFFER_SIZE) + { + if (m_ExtendedLen > oldLen) + { + delete[] m_ExtendedBufferPtr; + m_ExtendedBufferPtr = new uint8_t[m_ExtendedLen]; + } + } + else + m_ExtendedBufferPtr = new uint8_t[m_ExtendedLen]; + memcpy (m_ExtendedBufferPtr, buf + DEFAULT_IDENTITY_SIZE, m_ExtendedLen); + } + else + memcpy (m_ExtendedBuffer, buf + DEFAULT_IDENTITY_SIZE, m_ExtendedLen); } else { @@ -227,13 +290,11 @@ namespace data } } else - { m_ExtendedLen = 0; - m_ExtendedBuffer = nullptr; - } SHA256(buf, GetFullLen (), m_IdentHash); m_Verifier = nullptr; + CreateVerifier (); return GetFullLen (); } @@ -243,33 +304,33 @@ namespace data const size_t fullLen = GetFullLen(); if (fullLen > len) return 0; // buffer is too small and may overflow somewhere else memcpy (buf, &m_StandardIdentity, DEFAULT_IDENTITY_SIZE); - if (m_ExtendedLen > 0 && m_ExtendedBuffer) - memcpy (buf + DEFAULT_IDENTITY_SIZE, m_ExtendedBuffer, m_ExtendedLen); + if (m_ExtendedLen > 0) + { + if (m_ExtendedLen > MAX_EXTENDED_BUFFER_SIZE) + memcpy (buf + DEFAULT_IDENTITY_SIZE, m_ExtendedBufferPtr, m_ExtendedLen); + else + memcpy (buf + DEFAULT_IDENTITY_SIZE, m_ExtendedBuffer, m_ExtendedLen); + } return fullLen; } - size_t IdentityEx::FromBase64(const std::string& s) + size_t IdentityEx::FromBase64(std::string_view s) { - const size_t slen = s.length(); - std::vector buf(slen); // binary data can't exceed base64 - const size_t len = Base64ToByteStream (s.c_str(), slen, buf.data(), slen); + std::vector buf(s.length ()); // binary data can't exceed base64 + auto len = Base64ToByteStream (s, buf.data(), buf.size ()); return FromBuffer (buf.data(), len); } std::string IdentityEx::ToBase64 () const { const size_t bufLen = GetFullLen(); - const size_t strLen = Base64EncodingBufferSize(bufLen); std::vector buf(bufLen); - std::vector str(strLen); size_t l = ToBuffer (buf.data(), bufLen); - size_t l1 = i2p::data::ByteStreamToBase64 (buf.data(), l, str.data(), strLen); - return std::string (str.data(), l1); + return i2p::data::ByteStreamToBase64 (buf.data(), l); } size_t IdentityEx::GetSigningPublicKeyLen () const { - if (!m_Verifier) CreateVerifier (); if (m_Verifier) return m_Verifier->GetPublicKeyLen (); return 128; @@ -278,13 +339,12 @@ namespace data const uint8_t * IdentityEx::GetSigningPublicKeyBuffer () const { auto keyLen = GetSigningPublicKeyLen (); - if (keyLen > 128) return nullptr; // P521 + if (keyLen > 128) return nullptr; // P521 or PQ return m_StandardIdentity.signingKey + 128 - keyLen; } size_t IdentityEx::GetSigningPrivateKeyLen () const { - if (!m_Verifier) CreateVerifier (); if (m_Verifier) return m_Verifier->GetPrivateKeyLen (); return GetSignatureLen ()/2; @@ -292,14 +352,12 @@ namespace data size_t IdentityEx::GetSignatureLen () const { - if (!m_Verifier) CreateVerifier (); if (m_Verifier) return m_Verifier->GetSignatureLen (); return i2p::crypto::DSA_SIGNATURE_LENGTH; } bool IdentityEx::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const { - if (!m_Verifier) CreateVerifier (); if (m_Verifier) return m_Verifier->Verify (buf, len, signature); return false; @@ -308,7 +366,7 @@ namespace data SigningKeyType IdentityEx::GetSigningKeyType () const { if (m_StandardIdentity.certificate[0] == CERTIFICATE_TYPE_KEY && m_ExtendedLen >= 2) - return bufbe16toh (m_ExtendedBuffer); // signing key + return bufbe16toh (m_ExtendedLen <= MAX_EXTENDED_BUFFER_SIZE ? m_ExtendedBuffer : m_ExtendedBufferPtr); // signing key return SIGNING_KEY_TYPE_DSA_SHA1; } @@ -321,7 +379,7 @@ namespace data CryptoKeyType IdentityEx::GetCryptoKeyType () const { if (m_StandardIdentity.certificate[0] == CERTIFICATE_TYPE_KEY && m_ExtendedLen >= 4) - return bufbe16toh (m_ExtendedBuffer + 2); // crypto key + return bufbe16toh (m_ExtendedLen <= MAX_EXTENDED_BUFFER_SIZE ? m_ExtendedBuffer + 2 : m_ExtendedBufferPtr + 2); // crypto key return CRYPTO_KEY_TYPE_ELGAMAL; } @@ -345,6 +403,10 @@ namespace data return new i2p::crypto::GOSTR3410_512_Verifier (i2p::crypto::eGOSTR3410TC26A512); case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: return new i2p::crypto::RedDSA25519Verifier (); +#if OPENSSL_PQ + case SIGNING_KEY_TYPE_MLDSA44: + return new i2p::crypto::MLDSA44Verifier (); +#endif case SIGNING_KEY_TYPE_RSA_SHA256_2048: case SIGNING_KEY_TYPE_RSA_SHA384_3072: case SIGNING_KEY_TYPE_RSA_SHA512_4096: @@ -355,59 +417,42 @@ namespace data } return nullptr; } - - void IdentityEx::CreateVerifier () const - { - if (m_Verifier) return; // don't create again - auto verifier = CreateVerifier (GetSigningKeyType ()); - if (verifier) - { - auto keyLen = verifier->GetPublicKeyLen (); - if (keyLen <= 128) - verifier->SetPublicKey (m_StandardIdentity.signingKey + 128 - keyLen); - else - { - // for P521 - uint8_t * signingKey = new uint8_t[keyLen]; - memcpy (signingKey, m_StandardIdentity.signingKey, 128); - size_t excessLen = keyLen - 128; - memcpy (signingKey + 128, m_ExtendedBuffer + 4, excessLen); // right after signing and crypto key types - verifier->SetPublicKey (signingKey); - delete[] signingKey; - } - } - UpdateVerifier (verifier); - } - void IdentityEx::UpdateVerifier (i2p::crypto::Verifier * verifier) const + void IdentityEx::CreateVerifier () { if (!m_Verifier) { - auto created = m_IsVerifierCreated.exchange (true); - if (!created) - m_Verifier.reset (verifier); - else + auto verifier = CreateVerifier (GetSigningKeyType ()); + if (verifier) { - delete verifier; - int count = 0; - while (!m_Verifier && count < 500) // 5 seconds + auto keyLen = verifier->GetPublicKeyLen (); + if (keyLen <= 128) + verifier->SetPublicKey (m_StandardIdentity.signingKey + 128 - keyLen); +#if OPENSSL_PQ + else if (keyLen > 384) { - std::this_thread::sleep_for (std::chrono::milliseconds(10)); - count++; + // for post-quantum + uint8_t * signingKey = new uint8_t[keyLen]; + memcpy (signingKey, m_StandardIdentity, 384); + size_t excessLen = keyLen - 384; + memcpy (signingKey + 384, m_ExtendedBufferPtr + 4, excessLen); // right after signing and crypto key types + verifier->SetPublicKey (signingKey); + delete[] signingKey; + } +#endif + else + { + // for P521 + uint8_t * signingKey = new uint8_t[keyLen]; + memcpy (signingKey, m_StandardIdentity.signingKey, 128); + size_t excessLen = keyLen - 128; + memcpy (signingKey + 128, m_ExtendedBuffer + 4, excessLen); // right after signing and crypto key types + verifier->SetPublicKey (signingKey); + delete[] signingKey; } - if (!m_Verifier) - LogPrint (eLogError, "Identity: couldn't get verifier in 5 seconds"); } + m_Verifier.reset (verifier); } - else - delete verifier; - } - - void IdentityEx::DropVerifier () const - { - // TODO: potential race condition with Verify - m_IsVerifierCreated = false; - m_Verifier = nullptr; } std::shared_ptr IdentityEx::CreateEncryptor (CryptoKeyType keyType, const uint8_t * key) @@ -417,18 +462,20 @@ namespace data case CRYPTO_KEY_TYPE_ELGAMAL: return std::make_shared(key); break; - case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: - case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC_TEST: - return std::make_shared(key); + case CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD: + return std::make_shared(key); break; - case CRYPTO_KEY_TYPE_ECIES_GOSTR3410_CRYPTO_PRO_A_SHA256_AES256CBC: - return std::make_shared(key); + case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: + return std::make_shared(key); break; default: LogPrint (eLogError, "Identity: Unknown crypto key type ", (int)keyType); }; return nullptr; - } + } std::shared_ptr IdentityEx::CreateEncryptor (const uint8_t * key) const { @@ -436,11 +483,21 @@ namespace data return CreateEncryptor (GetCryptoKeyType (), key); } + size_t GetIdentityBufferLen (const uint8_t * buf, size_t len) + { + if (len < DEFAULT_IDENTITY_SIZE) return 0; + size_t l = DEFAULT_IDENTITY_SIZE + bufbe16toh (buf + DEFAULT_IDENTITY_SIZE - 2); + if (l > len) return 0; + return l; + } + PrivateKeys& PrivateKeys::operator=(const Keys& keys) { m_Public = std::make_shared(Identity (keys)); memcpy (m_PrivateKey, keys.privateKey, 256); // 256 - memcpy (m_SigningPrivateKey, keys.signingPrivateKey, m_Public->GetSigningPrivateKeyLen ()); + size_t keyLen = m_Public->GetSigningPrivateKeyLen (); + if (keyLen > 128) m_SigningPrivateKey.resize (keyLen); + memcpy (m_SigningPrivateKey.data (), keys.signingPrivateKey, keyLen); m_OfflineSignature.resize (0); m_TransientSignatureLen = 0; m_TransientSigningPrivateKeyLen = 0; @@ -456,15 +513,15 @@ namespace data m_OfflineSignature = other.m_OfflineSignature; m_TransientSignatureLen = other.m_TransientSignatureLen; m_TransientSigningPrivateKeyLen = other.m_TransientSigningPrivateKeyLen; - memcpy (m_SigningPrivateKey, other.m_SigningPrivateKey, m_TransientSigningPrivateKeyLen > 0 ? m_TransientSigningPrivateKeyLen : m_Public->GetSigningPrivateKeyLen ()); + m_SigningPrivateKey = other.m_SigningPrivateKey; m_Signer = nullptr; CreateSigner (); return *this; } - size_t PrivateKeys::GetFullLen () const - { - size_t ret = m_Public->GetFullLen () + 256 + m_Public->GetSigningPrivateKeyLen (); + size_t PrivateKeys::GetFullLen () const + { + size_t ret = m_Public->GetFullLen () + GetPrivateKeyLen () + m_Public->GetSigningPrivateKeyLen (); if (IsOfflineSignature ()) ret += m_OfflineSignature.size () + m_TransientSigningPrivateKeyLen; return ret; @@ -474,18 +531,20 @@ namespace data { m_Public = std::make_shared(); size_t ret = m_Public->FromBuffer (buf, len); - if (!ret || ret + 256 > len) return 0; // overflow - memcpy (m_PrivateKey, buf + ret, 256); // private key always 256 - ret += 256; + auto cryptoKeyLen = GetPrivateKeyLen (); + if (!ret || ret + cryptoKeyLen > len) return 0; // overflow + memcpy (m_PrivateKey, buf + ret, cryptoKeyLen); + ret += cryptoKeyLen; size_t signingPrivateKeySize = m_Public->GetSigningPrivateKeyLen (); - if(signingPrivateKeySize + ret > len || signingPrivateKeySize > 128) return 0; // overflow - memcpy (m_SigningPrivateKey, buf + ret, signingPrivateKeySize); + if (signingPrivateKeySize + ret > len) return 0; // overflow + m_SigningPrivateKey.resize (signingPrivateKeySize); + memcpy (m_SigningPrivateKey.data (), buf + ret, signingPrivateKeySize); ret += signingPrivateKeySize; m_Signer = nullptr; // check if signing private key is all zeros bool allzeros = true; for (size_t i = 0; i < signingPrivateKeySize; i++) - if (m_SigningPrivateKey[i]) + if (m_SigningPrivateKey[i]) { allzeros = false; break; @@ -494,7 +553,12 @@ namespace data { // offline information const uint8_t * offlineInfo = buf + ret; - ret += 4; // expires timestamp + uint32_t expires = bufbe32toh (buf + ret); ret += 4; // expires timestamp + if (expires < i2p::util::GetSecondsSinceEpoch ()) + { + LogPrint (eLogError, "Identity: Offline signature expired"); + return 0; + } SigningKeyType keyType = bufbe16toh (buf + ret); ret += 2; // key type std::unique_ptr transientVerifier (IdentityEx::CreateVerifier (keyType)); if (!transientVerifier) return 0; @@ -502,9 +566,9 @@ namespace data if (keyLen + ret > len) return 0; transientVerifier->SetPublicKey (buf + ret); ret += keyLen; if (m_Public->GetSignatureLen () + ret > len) return 0; - if (!m_Public->Verify (offlineInfo, keyLen + 6, buf + ret)) + if (!m_Public->Verify (offlineInfo, keyLen + 6, buf + ret)) { - LogPrint (eLogError, "Identity: offline signature verification failed"); + LogPrint (eLogError, "Identity: Offline signature verification failed"); return 0; } ret += m_Public->GetSignatureLen (); @@ -513,10 +577,11 @@ namespace data size_t offlineInfoLen = buf + ret - offlineInfo; m_OfflineSignature.resize (offlineInfoLen); memcpy (m_OfflineSignature.data (), offlineInfo, offlineInfoLen); - // override signing private key + // override signing private key m_TransientSigningPrivateKeyLen = transientVerifier->GetPrivateKeyLen (); - if (m_TransientSigningPrivateKeyLen + ret > len || m_TransientSigningPrivateKeyLen > 128) return 0; - memcpy (m_SigningPrivateKey, buf + ret, m_TransientSigningPrivateKeyLen); + if (m_TransientSigningPrivateKeyLen + ret > len) return 0; + if (m_TransientSigningPrivateKeyLen > 128) m_SigningPrivateKey.resize (m_TransientSigningPrivateKeyLen); + memcpy (m_SigningPrivateKey.data (), buf + ret, m_TransientSigningPrivateKeyLen); ret += m_TransientSigningPrivateKeyLen; CreateSigner (keyType); } @@ -528,14 +593,15 @@ namespace data size_t PrivateKeys::ToBuffer (uint8_t * buf, size_t len) const { size_t ret = m_Public->ToBuffer (buf, len); - memcpy (buf + ret, m_PrivateKey, 256); // private key always 256 - ret += 256; + auto cryptoKeyLen = GetPrivateKeyLen (); + memcpy (buf + ret, m_PrivateKey, cryptoKeyLen); + ret += cryptoKeyLen; size_t signingPrivateKeySize = m_Public->GetSigningPrivateKeyLen (); if(ret + signingPrivateKeySize > len) return 0; // overflow if (IsOfflineSignature ()) memset (buf + ret, 0, signingPrivateKeySize); else - memcpy (buf + ret, m_SigningPrivateKey, signingPrivateKeySize); + memcpy (buf + ret, m_SigningPrivateKey.data (), signingPrivateKeySize); ret += signingPrivateKeySize; if (IsOfflineSignature ()) { @@ -546,32 +612,24 @@ namespace data ret += offlineSignatureLen; // transient private key if (ret + m_TransientSigningPrivateKeyLen > len) return 0; - memcpy (buf + ret, m_SigningPrivateKey, m_TransientSigningPrivateKeyLen); + memcpy (buf + ret, m_SigningPrivateKey.data (), m_TransientSigningPrivateKeyLen); ret += m_TransientSigningPrivateKeyLen; } return ret; } - size_t PrivateKeys::FromBase64(const std::string& s) + size_t PrivateKeys::FromBase64(std::string_view s) { - uint8_t * buf = new uint8_t[s.length ()]; - size_t l = i2p::data::Base64ToByteStream (s.c_str (), s.length (), buf, s.length ()); - size_t ret = FromBuffer (buf, l); - delete[] buf; - return ret; + std::vector buf(s.length ()); + size_t l = i2p::data::Base64ToByteStream (s, buf.data (), buf.size ()); + return FromBuffer (buf.data (), l); } std::string PrivateKeys::ToBase64 () const { - uint8_t * buf = new uint8_t[GetFullLen ()]; - char * str = new char[GetFullLen ()*2]; - size_t l = ToBuffer (buf, GetFullLen ()); - size_t l1 = i2p::data::ByteStreamToBase64 (buf, l, str, GetFullLen ()*2); - str[l1] = 0; - delete[] buf; - std::string ret(str); - delete[] str; - return ret; + std::vector buf(GetFullLen ()); + size_t l = ToBuffer (buf.data (), buf.size ()); + return i2p::data::ByteStreamToBase64 (buf.data (), l); } void PrivateKeys::Sign (const uint8_t * buf, int len, uint8_t * signature) const @@ -588,20 +646,20 @@ namespace data else CreateSigner (m_Public->GetSigningKeyType ()); } - + void PrivateKeys::CreateSigner (SigningKeyType keyType) const { - if (m_Signer) return; + if (m_Signer) return; if (keyType == SIGNING_KEY_TYPE_DSA_SHA1) - m_Signer.reset (new i2p::crypto::DSASigner (m_SigningPrivateKey, m_Public->GetStandardIdentity ().signingKey)); + m_Signer.reset (new i2p::crypto::DSASigner (m_SigningPrivateKey.data (), m_Public->GetStandardIdentity ().signingKey)); else if (keyType == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 && !IsOfflineSignature ()) - m_Signer.reset (new i2p::crypto::EDDSA25519Signer (m_SigningPrivateKey, m_Public->GetStandardIdentity ().certificate - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH)); // TODO: remove public key check + m_Signer.reset (new i2p::crypto::EDDSA25519Signer (m_SigningPrivateKey.data (), m_Public->GetStandardIdentity ().signingKey + (sizeof(Identity::signingKey) - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH))); // TODO: remove public key check else { // public key is not required - auto signer = CreateSigner (keyType, m_SigningPrivateKey); + auto signer = CreateSigner (keyType, m_SigningPrivateKey.data ()); if (signer) m_Signer.reset (signer); - } + } } i2p::crypto::Signer * PrivateKeys::CreateSigner (SigningKeyType keyType, const uint8_t * priv) @@ -632,8 +690,13 @@ namespace data return new i2p::crypto::GOSTR3410_512_Signer (i2p::crypto::eGOSTR3410TC26A512, priv); break; case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: - return new i2p::crypto::RedDSA25519Signer (priv); + return new i2p::crypto::RedDSA25519Signer (priv); + break; +#if OPENSSL_PQ + case SIGNING_KEY_TYPE_MLDSA44: + return new i2p::crypto::MLDSA44Signer (priv); break; +#endif default: LogPrint (eLogError, "Identity: Signing key type ", (int)keyType, " is not supported"); } @@ -645,6 +708,11 @@ namespace data return IsOfflineSignature () ? m_TransientSignatureLen : m_Public->GetSignatureLen (); } + size_t PrivateKeys::GetPrivateKeyLen () const + { + return i2p::crypto::GetCryptoPrivateKeyLen (m_Public->GetCryptoKeyType ()); + } + uint8_t * PrivateKeys::GetPadding() { if(m_Public->GetSigningKeyType () == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519) @@ -667,12 +735,14 @@ namespace data case CRYPTO_KEY_TYPE_ELGAMAL: return std::make_shared(key); break; - case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: - case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC_TEST: - return std::make_shared(key); + case CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD: + return std::make_shared(key); break; - case CRYPTO_KEY_TYPE_ECIES_GOSTR3410_CRYPTO_PRO_A_SHA256_AES256CBC: - return std::make_shared(key); + case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: + return std::make_shared(key); break; default: LogPrint (eLogError, "Identity: Unknown crypto key type ", (int)cryptoType); @@ -680,19 +750,24 @@ namespace data return nullptr; } - PrivateKeys PrivateKeys::CreateRandomKeys (SigningKeyType type, CryptoKeyType cryptoType) + PrivateKeys PrivateKeys::CreateRandomKeys (SigningKeyType type, CryptoKeyType cryptoType, bool isDestination) { if (type != SIGNING_KEY_TYPE_DSA_SHA1) { PrivateKeys keys; // signature - uint8_t signingPublicKey[512]; // signing public key is 512 bytes max - GenerateSigningKeyPair (type, keys.m_SigningPrivateKey, signingPublicKey); + std::unique_ptr verifier (IdentityEx::CreateVerifier (type)); + std::vector signingPublicKey(verifier->GetPublicKeyLen ()); + keys.m_SigningPrivateKey.resize (verifier->GetPrivateKeyLen ()); + GenerateSigningKeyPair (type, keys.m_SigningPrivateKey.data (), signingPublicKey.data ()); // encryption uint8_t publicKey[256]; - GenerateCryptoKeyPair (cryptoType, keys.m_PrivateKey, publicKey); + if (isDestination) + RAND_bytes (keys.m_PrivateKey, 256); + else + GenerateCryptoKeyPair (cryptoType, keys.m_PrivateKey, publicKey); // identity - keys.m_Public = std::make_shared (publicKey, signingPublicKey, type, cryptoType); + keys.m_Public = std::make_shared (isDestination ? nullptr : publicKey, signingPublicKey.data (), type, cryptoType); keys.CreateSigner (); return keys; @@ -717,7 +792,8 @@ namespace data case SIGNING_KEY_TYPE_RSA_SHA384_3072: case SIGNING_KEY_TYPE_RSA_SHA512_4096: LogPrint (eLogWarning, "Identity: RSA signature type is not supported. Creating EdDSA"); - // no break here + [[fallthrough]]; + // no break here case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519: i2p::crypto::CreateEDDSA25519RandomKeys (priv, pub); break; @@ -729,7 +805,12 @@ namespace data break; case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519: i2p::crypto::CreateRedDSA25519RandomKeys (priv, pub); + break; +#if OPENSSL_PQ + case SIGNING_KEY_TYPE_MLDSA44: + i2p::crypto::CreateMLDSA44RandomKeys (priv, pub); break; +#endif default: LogPrint (eLogWarning, "Identity: Signing key type ", (int)type, " is not supported. Create DSA-SHA1"); i2p::crypto::CreateDSARandomKeys (priv, pub); // DSA-SHA1 @@ -744,11 +825,13 @@ namespace data i2p::crypto::GenerateElGamalKeyPair(priv, pub); break; case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC: - case CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC_TEST: i2p::crypto::CreateECIESP256RandomKeys (priv, pub); break; - case CRYPTO_KEY_TYPE_ECIES_GOSTR3410_CRYPTO_PRO_A_SHA256_AES256CBC: - i2p::crypto::CreateECIESGOSTR3410RandomKeys (priv, pub); + case CRYPTO_KEY_TYPE_ECIES_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD: + case CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD: + i2p::crypto::CreateECIESX25519AEADRatchetRandomKeys (priv, pub); break; default: LogPrint (eLogError, "Identity: Crypto key type ", (int)type, " is not supported"); @@ -758,17 +841,18 @@ namespace data PrivateKeys PrivateKeys::CreateOfflineKeys (SigningKeyType type, uint32_t expires) const { PrivateKeys keys (*this); - std::unique_ptr verifier (IdentityEx::CreateVerifier (type)); + std::unique_ptr verifier (IdentityEx::CreateVerifier (type)); if (verifier) { size_t pubKeyLen = verifier->GetPublicKeyLen (); keys.m_TransientSigningPrivateKeyLen = verifier->GetPrivateKeyLen (); keys.m_TransientSignatureLen = verifier->GetSignatureLen (); keys.m_OfflineSignature.resize (pubKeyLen + m_Public->GetSignatureLen () + 6); + keys.m_SigningPrivateKey.resize (verifier->GetPrivateKeyLen ()); htobe32buf (keys.m_OfflineSignature.data (), expires); // expires htobe16buf (keys.m_OfflineSignature.data () + 4, type); // type - GenerateSigningKeyPair (type, keys.m_SigningPrivateKey, keys.m_OfflineSignature.data () + 6); // public key - Sign (keys.m_OfflineSignature.data (), pubKeyLen + 6, keys.m_OfflineSignature.data () + 6 + pubKeyLen); // signature + GenerateSigningKeyPair (type, keys.m_SigningPrivateKey.data (), keys.m_OfflineSignature.data () + 6); // public key + Sign (keys.m_OfflineSignature.data (), pubKeyLen + 6, keys.m_OfflineSignature.data () + 6 + pubKeyLen); // signature // recreate signer keys.m_Signer = nullptr; keys.CreateSigner (type); @@ -786,11 +870,14 @@ namespace data return keys; } - IdentHash CreateRoutingKey (const IdentHash& ident) + IdentHash CreateRoutingKey (const IdentHash& ident, bool nextDay) { uint8_t buf[41]; // ident + yyyymmdd memcpy (buf, (const uint8_t *)ident, 32); - i2p::util::GetCurrentDate ((char *)(buf + 32)); + if (nextDay) + i2p::util::GetNextDayDate ((char *)(buf + 32)); + else + i2p::util::GetCurrentDate ((char *)(buf + 32)); IdentHash key; SHA256(buf, 40, key); return key; @@ -799,29 +886,12 @@ namespace data XORMetric operator^(const IdentHash& key1, const IdentHash& key2) { XORMetric m; -#ifdef __AVX__ - if(i2p::cpu::avx) - { - __asm__ - ( - "vmovups %1, %%ymm0 \n" - "vmovups %2, %%ymm1 \n" - "vxorps %%ymm0, %%ymm1, %%ymm1 \n" - "vmovups %%ymm1, %0 \n" - : "=m"(*m.metric) - : "m"(*key1), "m"(*key2) - : "memory", "%xmm0", "%xmm1" // should be replaced by %ymm0/1 once supported by compiler - ); - } - else -#endif - { - const uint64_t * hash1 = key1.GetLL (), * hash2 = key2.GetLL (); - m.metric_ll[0] = hash1[0] ^ hash2[0]; - m.metric_ll[1] = hash1[1] ^ hash2[1]; - m.metric_ll[2] = hash1[2] ^ hash2[2]; - m.metric_ll[3] = hash1[3] ^ hash2[3]; - } + + const uint64_t * hash1 = key1.GetLL (), * hash2 = key2.GetLL (); + m.metric_ll[0] = hash1[0] ^ hash2[0]; + m.metric_ll[1] = hash1[1] ^ hash2[1]; + m.metric_ll[2] = hash1[2] ^ hash2[2]; + m.metric_ll[3] = hash1[3] ^ hash2[3]; return m; } diff --git a/libi2pd/Identity.h b/libi2pd/Identity.h index 72fd14c5..c95ce000 100644 --- a/libi2pd/Identity.h +++ b/libi2pd/Identity.h @@ -1,18 +1,30 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef IDENTITY_H__ #define IDENTITY_H__ #include #include #include +#include #include -#include #include #include "Base.h" #include "Signature.h" -#include "CryptoKey.h" namespace i2p { +namespace crypto +{ + class CryptoKeyEncryptor; + class CryptoKeyDecryptor; +} namespace data { typedef Tag<32> IdentHash; @@ -47,6 +59,8 @@ namespace data Identity& operator=(const Keys& keys); size_t FromBuffer (const uint8_t * buf, size_t len); IdentHash Hash () const; + operator uint8_t * () { return reinterpret_cast(this); } + operator const uint8_t * () const { return reinterpret_cast(this); } }; Keys CreateRandomKeys (); @@ -55,9 +69,11 @@ namespace data const uint16_t CRYPTO_KEY_TYPE_ELGAMAL = 0; const uint16_t CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC = 1; - const uint16_t CRYPTO_KEY_TYPE_ECIES_P256_SHA256_AES256CBC_TEST = 65280; // TODO: remove later - const uint16_t CRYPTO_KEY_TYPE_ECIES_GOSTR3410_CRYPTO_PRO_A_SHA256_AES256CBC = 65281; // TODO: use GOST R 34.11 instead SHA256 and GOST 28147-89 instead AES - + const uint16_t CRYPTO_KEY_TYPE_ECIES_X25519_AEAD = 4; + const uint16_t CRYPTO_KEY_TYPE_ECIES_MLKEM512_X25519_AEAD = 5; + const uint16_t CRYPTO_KEY_TYPE_ECIES_MLKEM768_X25519_AEAD = 6; + const uint16_t CRYPTO_KEY_TYPE_ECIES_MLKEM1024_X25519_AEAD = 7; + const uint16_t SIGNING_KEY_TYPE_DSA_SHA1 = 0; const uint16_t SIGNING_KEY_TYPE_ECDSA_SHA256_P256 = 1; const uint16_t SIGNING_KEY_TYPE_ECDSA_SHA384_P384 = 2; @@ -66,14 +82,16 @@ namespace data const uint16_t SIGNING_KEY_TYPE_RSA_SHA384_3072 = 5; const uint16_t SIGNING_KEY_TYPE_RSA_SHA512_4096 = 6; const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 = 7; - const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph = 8; // not implemented + const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph = 8; // since openssl 3.0.0 const uint16_t SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256 = 9; const uint16_t SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512 = 10; // approved by FSB const uint16_t SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519 = 11; // for LeaseSet2 only - + const uint16_t SIGNING_KEY_TYPE_MLDSA44 = 12; + typedef uint16_t SigningKeyType; typedef uint16_t CryptoKeyType; + const size_t MAX_EXTENDED_BUFFER_SIZE = 8; // cryptoKeyType + signingKeyType + 4 extra bytes of P521 class IdentityEx { public: @@ -90,7 +108,7 @@ namespace data size_t FromBuffer (const uint8_t * buf, size_t len); size_t ToBuffer (uint8_t * buf, size_t len) const; - size_t FromBase64(const std::string& s); + size_t FromBase64(std::string_view s); std::string ToBase64 () const; const Identity& GetStandardIdentity () const { return m_StandardIdentity; }; @@ -107,29 +125,32 @@ namespace data SigningKeyType GetSigningKeyType () const; bool IsRSA () const; // signing key type CryptoKeyType GetCryptoKeyType () const; - void DropVerifier () const; // to save memory - bool operator == (const IdentityEx & other) const { return GetIdentHash() == other.GetIdentHash(); } + bool operator == (const IdentityEx & other) const { return GetIdentHash() == other.GetIdentHash(); } void RecalculateIdentHash(uint8_t * buff=nullptr); static i2p::crypto::Verifier * CreateVerifier (SigningKeyType keyType); - static std::shared_ptr CreateEncryptor (CryptoKeyType keyType, const uint8_t * key); + static std::shared_ptr CreateEncryptor (CryptoKeyType keyType, const uint8_t * key); private: - void CreateVerifier () const; - void UpdateVerifier (i2p::crypto::Verifier * verifier) const; - + void CreateVerifier (); + private: Identity m_StandardIdentity; IdentHash m_IdentHash; - mutable std::unique_ptr m_Verifier; - mutable std::atomic_bool m_IsVerifierCreated; // make sure we don't create twice + std::unique_ptr m_Verifier; size_t m_ExtendedLen; - uint8_t * m_ExtendedBuffer; + union + { + uint8_t m_ExtendedBuffer[MAX_EXTENDED_BUFFER_SIZE]; + uint8_t * m_ExtendedBufferPtr; + }; }; + size_t GetIdentityBufferLen (const uint8_t * buf, size_t len); // return actual identity length in buffer + class PrivateKeys // for eepsites { public: @@ -143,10 +164,10 @@ namespace data std::shared_ptr GetPublic () const { return m_Public; }; const uint8_t * GetPrivateKey () const { return m_PrivateKey; }; - const uint8_t * GetSigningPrivateKey () const { return m_SigningPrivateKey; }; + const uint8_t * GetSigningPrivateKey () const { return m_SigningPrivateKey.data (); }; size_t GetSignatureLen () const; // might not match identity bool IsOfflineSignature () const { return m_TransientSignatureLen > 0; }; - uint8_t * GetPadding(); + uint8_t * GetPadding(); void RecalculateIdentHash(uint8_t * buf=nullptr) { m_Public->RecalculateIdentHash(buf); } void Sign (const uint8_t * buf, int len, uint8_t * signature) const; @@ -154,31 +175,32 @@ namespace data size_t FromBuffer (const uint8_t * buf, size_t len); size_t ToBuffer (uint8_t * buf, size_t len) const; - size_t FromBase64(const std::string& s); + size_t FromBase64(std::string_view s); std::string ToBase64 () const; std::shared_ptr CreateDecryptor (const uint8_t * key) const; static std::shared_ptr CreateDecryptor (CryptoKeyType cryptoType, const uint8_t * key); - static PrivateKeys CreateRandomKeys (SigningKeyType type = SIGNING_KEY_TYPE_DSA_SHA1, CryptoKeyType cryptoType = CRYPTO_KEY_TYPE_ELGAMAL); - static void GenerateSigningKeyPair (SigningKeyType type, uint8_t * priv, uint8_t * pub); + static PrivateKeys CreateRandomKeys (SigningKeyType type = SIGNING_KEY_TYPE_DSA_SHA1, CryptoKeyType cryptoType = CRYPTO_KEY_TYPE_ELGAMAL, bool isDestination = false); + static void GenerateSigningKeyPair (SigningKeyType type, uint8_t * priv, uint8_t * pub); static void GenerateCryptoKeyPair (CryptoKeyType type, uint8_t * priv, uint8_t * pub); // priv and pub are 256 bytes long static i2p::crypto::Signer * CreateSigner (SigningKeyType keyType, const uint8_t * priv); // offline keys - PrivateKeys CreateOfflineKeys (SigningKeyType type, uint32_t expires) const; + PrivateKeys CreateOfflineKeys (SigningKeyType type, uint32_t expires) const; const std::vector& GetOfflineSignature () const { return m_OfflineSignature; }; private: void CreateSigner () const; void CreateSigner (SigningKeyType keyType) const; + size_t GetPrivateKeyLen () const; private: std::shared_ptr m_Public; uint8_t m_PrivateKey[256]; - uint8_t m_SigningPrivateKey[128]; // assume private key doesn't exceed 128 bytes + std::vector m_SigningPrivateKey; mutable std::unique_ptr m_Signer; std::vector m_OfflineSignature; // non zero length, if applicable size_t m_TransientSignatureLen = 0; @@ -199,10 +221,10 @@ namespace data bool operator< (const XORMetric& other) const { return memcmp (metric, other.metric, 32) < 0; }; }; - IdentHash CreateRoutingKey (const IdentHash& ident); + IdentHash CreateRoutingKey (const IdentHash& ident, bool nextDay = false); XORMetric operator^(const IdentHash& key1, const IdentHash& key2); - // destination for delivery instuctions + // destination for delivery instructions class RoutingDestination { public: @@ -210,11 +232,12 @@ namespace data RoutingDestination () {}; virtual ~RoutingDestination () {}; - virtual std::shared_ptr GetIdentity () const = 0; - virtual void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const = 0; // encrypt data for + virtual std::shared_ptr GetIdentity () const = 0; + virtual void Encrypt (const uint8_t * data, uint8_t * encrypted) const = 0; // encrypt data for virtual bool IsDestination () const = 0; // for garlic const IdentHash& GetIdentHash () const { return GetIdentity ()->GetIdentHash (); }; + virtual CryptoKeyType GetEncryptionType () const { return GetIdentity ()->GetCryptoKeyType (); }; // override in LeaseSet2 }; class LocalDestination @@ -222,13 +245,14 @@ namespace data public: virtual ~LocalDestination() {}; - virtual bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const = 0; + virtual bool Decrypt (const uint8_t * encrypted, uint8_t * data, CryptoKeyType preferredCrypto = CRYPTO_KEY_TYPE_ELGAMAL) const = 0; virtual std::shared_ptr GetIdentity () const = 0; const IdentHash& GetIdentHash () const { return GetIdentity ()->GetIdentHash (); }; + virtual bool SupportsEncryptionType (CryptoKeyType keyType) const { return GetIdentity ()->GetCryptoKeyType () == keyType; }; // override for LeaseSet + virtual const uint8_t * GetEncryptionPublicKey (CryptoKeyType keyType) const { return GetIdentity ()->GetEncryptionPublicKey (); }; // override for LeaseSet }; } } - #endif diff --git a/libi2pd/KadDHT.cpp b/libi2pd/KadDHT.cpp new file mode 100644 index 00000000..0f9df8e4 --- /dev/null +++ b/libi2pd/KadDHT.cpp @@ -0,0 +1,372 @@ +/* +* Copyright (c) 2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +* +*/ + +#include "KadDHT.h" + +namespace i2p +{ +namespace data +{ + DHTNode::DHTNode (): + zero (nullptr), one (nullptr) + { + } + + DHTNode::~DHTNode () + { + if (zero) delete zero; + if (one) delete one; + } + + void DHTNode::MoveRouterUp (bool fromOne) + { + DHTNode *& side = fromOne ? one : zero; + if (side) + { + if (router) router = nullptr; // shouldn't happen + router = side->router; + side->router = nullptr; + delete side; + side = nullptr; + } + } + + DHTTable::DHTTable (): + m_Size (0) + { + m_Root = new DHTNode; + } + + DHTTable::~DHTTable () + { + delete m_Root; + } + + void DHTTable::Clear () + { + m_Size = 0; + delete m_Root; + m_Root = new DHTNode; + } + + void DHTTable::Insert (const std::shared_ptr& r) + { + if (!r) return; + return Insert (r, m_Root, 0); + } + + void DHTTable::Insert (const std::shared_ptr& r, DHTNode * root, int level) + { + if (root->router) + { + if (root->router->GetIdentHash () == r->GetIdentHash ()) + { + root->router = r; // replace + return; + } + auto r2 = root->router; + root->router = nullptr; m_Size--; + int bit1, bit2; + do + { + bit1 = r->GetIdentHash ().GetBit (level); + bit2 = r2->GetIdentHash ().GetBit (level); + if (bit1 == bit2) + { + if (bit1) + { + if (root->one) return; // something wrong + root->one = new DHTNode; + root = root->one; + } + else + { + if (root->zero) return; // something wrong + root->zero = new DHTNode; + root = root->zero; + } + level++; + } + } + while (bit1 == bit2); + + if (!root->zero) + root->zero = new DHTNode; + if (!root->one) + root->one = new DHTNode; + if (bit1) + { + Insert (r2, root->zero, level + 1); + Insert (r, root->one, level + 1); + } + else + { + Insert (r2, root->one, level + 1); + Insert (r, root->zero, level + 1); + } + } + else + { + if (!root->zero && !root->one) + { + root->router = r; m_Size++; + return; + } + int bit = r->GetIdentHash ().GetBit (level); + if (bit) + { + if (!root->one) + root->one = new DHTNode; + Insert (r, root->one, level + 1); + } + else + { + if (!root->zero) + root->zero = new DHTNode; + Insert (r, root->zero, level + 1); + } + } + } + + bool DHTTable::Remove (const IdentHash& h) + { + return Remove (h, m_Root, 0); + } + + bool DHTTable::Remove (const IdentHash& h, DHTNode * root, int level) + { + if (root) + { + if (root->router && root->router->GetIdentHash () == h) + { + root->router = nullptr; + m_Size--; + return true; + } + int bit = h.GetBit (level); + if (bit) + { + if (root->one && Remove (h, root->one, level + 1)) + { + if (root->one->IsEmpty ()) + { + delete root->one; + root->one = nullptr; + if (root->zero && root->zero->router) + root->MoveRouterUp (false); + } + else if (root->one->router && !root->zero) + root->MoveRouterUp (true); + return true; + } + } + else + { + if (root->zero && Remove (h, root->zero, level + 1)) + { + if (root->zero->IsEmpty ()) + { + delete root->zero; + root->zero = nullptr; + if (root->one && root->one->router) + root->MoveRouterUp (true); + } + else if (root->zero->router && !root->one) + root->MoveRouterUp (false); + return true; + } + } + } + return false; + } + + std::shared_ptr DHTTable::FindClosest (const IdentHash& h, const Filter& filter) const + { + if (filter) m_Filter = filter; + auto r = FindClosest (h, m_Root, 0); + m_Filter = nullptr; + return r; + } + + std::shared_ptr DHTTable::FindClosest (const IdentHash& h, DHTNode * root, int level) const + { + bool split = false; + do + { + if (root->router) + return (!m_Filter || m_Filter (root->router)) ? root->router : nullptr; + split = root->zero && root->one; + if (!split) + { + if (root->zero) root = root->zero; + else if (root->one) root = root->one; + else return nullptr; + level++; + } + } + while (!split); + int bit = h.GetBit (level); + if (bit) + { + if (root->one) + { + auto r = FindClosest (h, root->one, level + 1); + if (r) return r; + } + if (root->zero) + { + auto r = FindClosest (h, root->zero, level + 1); + if (r) return r; + } + } + else + { + if (root->zero) + { + auto r = FindClosest (h, root->zero, level + 1); + if (r) return r; + } + if (root->one) + { + auto r = FindClosest (h, root->one, level + 1); + if (r) return r; + } + } + return nullptr; + } + + std::vector > DHTTable::FindClosest (const IdentHash& h, size_t num, const Filter& filter) const + { + std::vector > vec; + if (num > 0) + { + if (filter) m_Filter = filter; + FindClosest (h, num, m_Root, 0, vec); + m_Filter = nullptr; + } + return vec; + } + + void DHTTable::FindClosest (const IdentHash& h, size_t num, DHTNode * root, int level, std::vector >& hashes) const + { + if (hashes.size () >= num) return; + bool split = false; + do + { + if (root->router) + { + if (!m_Filter || m_Filter (root->router)) + hashes.push_back (root->router); + return; + } + split = root->zero && root->one; + if (!split) + { + if (root->zero) root = root->zero; + else if (root->one) root = root->one; + else return; + level++; + } + } + while (!split); + int bit = h.GetBit (level); + if (bit) + { + if (root->one) + FindClosest (h, num, root->one, level + 1, hashes); + if (hashes.size () < num && root->zero) + FindClosest (h, num, root->zero, level + 1, hashes); + } + else + { + if (root->zero) + FindClosest (h, num, root->zero, level + 1, hashes); + if (hashes.size () < num && root->one) + FindClosest (h, num, root->one, level + 1, hashes); + } + } + + void DHTTable::Cleanup (const Filter& filter) + { + if (filter) + { + m_Filter = filter; + Cleanup (m_Root); + m_Filter = nullptr; + } + else + Clear (); + } + + void DHTTable::Cleanup (DHTNode * root) + { + if (!root) return; + if (root->router) + { + if (!m_Filter || !m_Filter (root->router)) + { + m_Size--; + root->router = nullptr; + } + return; + } + if (root->zero) + { + Cleanup (root->zero); + if (root->zero->IsEmpty ()) + { + delete root->zero; + root->zero = nullptr; + } + } + if (root->one) + { + Cleanup (root->one); + if (root->one->IsEmpty ()) + { + delete root->one; + root->one = nullptr; + if (root->zero && root->zero->router) + root->MoveRouterUp (false); + } + else if (root->one->router && !root->zero) + root->MoveRouterUp (true); + } + } + + void DHTTable::Print (std::stringstream& s) + { + Print (s, m_Root, 0); + } + + void DHTTable::Print (std::stringstream& s, DHTNode * root, int level) + { + if (!root) return; + s << std::string (level, '-'); + if (root->router) + { + if (!root->zero && !root->one) + s << '>' << GetIdentHashAbbreviation (root->router->GetIdentHash ()); + else + s << "error"; + } + s << std::endl; + if (root->zero) + { + s << std::string (level, '-') << "0" << std::endl; + Print (s, root->zero, level + 1); + } + if (root->one) + { + s << std::string (level, '-') << "1" << std::endl; + Print (s, root->one, level + 1); + } + } +} +} diff --git a/libi2pd/KadDHT.h b/libi2pd/KadDHT.h new file mode 100644 index 00000000..3bc31780 --- /dev/null +++ b/libi2pd/KadDHT.h @@ -0,0 +1,74 @@ +/* +* Copyright (c) 2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +* +*/ + +#ifndef KADDHT_H__ +#define KADDHT_H__ + +#include +#include +#include +#include +#include "RouterInfo.h" + +// Kademlia DHT (XOR distance) + +namespace i2p +{ +namespace data +{ + struct DHTNode + { + DHTNode * zero, * one; + std::shared_ptr router; + + DHTNode (); + ~DHTNode (); + + bool IsEmpty () const { return !zero && !one && !router; }; + void MoveRouterUp (bool fromOne); + }; + + class DHTTable + { + typedef std::function&)> Filter; + public: + + DHTTable (); + ~DHTTable (); + + void Insert (const std::shared_ptr& r); + bool Remove (const IdentHash& h); + std::shared_ptr FindClosest (const IdentHash& h, const Filter& filter = nullptr) const; + std::vector > FindClosest (const IdentHash& h, size_t num, const Filter& filter = nullptr) const; + + void Print (std::stringstream& s); + size_t GetSize () const { return m_Size; }; + void Clear (); + void Cleanup (const Filter& filter); + + private: + + void Insert (const std::shared_ptr& r, DHTNode * root, int level); // recursive + bool Remove (const IdentHash& h, DHTNode * root, int level); + std::shared_ptr FindClosest (const IdentHash& h, DHTNode * root, int level) const; + void FindClosest (const IdentHash& h, size_t num, DHTNode * root, int level, std::vector >& hashes) const; + void Cleanup (DHTNode * root); + void Print (std::stringstream& s, DHTNode * root, int level); + + private: + + DHTNode * m_Root; + size_t m_Size; + // transient + mutable Filter m_Filter; + }; +} +} + +#endif diff --git a/libi2pd/LeaseSet.cpp b/libi2pd/LeaseSet.cpp index 8b9edb79..fc0e722d 100644 --- a/libi2pd/LeaseSet.cpp +++ b/libi2pd/LeaseSet.cpp @@ -1,23 +1,28 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include -#include -#include -#include // for crc32 #include "I2PEndian.h" #include "Crypto.h" -#include "Ed25519.h" #include "Log.h" +#include "Tag.h" #include "Timestamp.h" #include "NetDb.hpp" #include "Tunnel.h" +#include "CryptoKey.h" #include "LeaseSet.h" namespace i2p { namespace data { - LeaseSet::LeaseSet (bool storeLeases): - m_IsValid (false), m_StoreLeases (storeLeases), m_ExpirationTime (0), m_EncryptionKey (nullptr), + m_IsValid (false), m_StoreLeases (storeLeases), m_ExpirationTime (0), m_EncryptionKey (nullptr), m_Buffer (nullptr), m_BufferLen (0) { } @@ -33,14 +38,7 @@ namespace data void LeaseSet::Update (const uint8_t * buf, size_t len, bool verifySignature) { - if (len > m_BufferLen) - { - auto oldBuffer = m_Buffer; - m_Buffer = new uint8_t[len]; - delete[] oldBuffer; - } - memcpy (m_Buffer, buf, len); - m_BufferLen = len; + SetBuffer (buf, len); ReadFromBuffer (false, verifySignature); } @@ -53,11 +51,11 @@ namespace data void LeaseSet::ReadFromBuffer (bool readIdentity, bool verifySignature) { if (readIdentity || !m_Identity) - m_Identity = std::make_shared(m_Buffer, m_BufferLen); + m_Identity = netdb.NewIdentity (m_Buffer, m_BufferLen); size_t size = m_Identity->GetFullLen (); - if (size > m_BufferLen) + if (size + 256 > m_BufferLen) { - LogPrint (eLogError, "LeaseSet: identity length ", size, " exceeds buffer size ", m_BufferLen); + LogPrint (eLogError, "LeaseSet: Identity length ", int(size), " exceeds buffer size ", int(m_BufferLen)); m_IsValid = false; return; } @@ -65,21 +63,32 @@ namespace data { if (!m_EncryptionKey) m_EncryptionKey = new uint8_t[256]; memcpy (m_EncryptionKey, m_Buffer + size, 256); - } + } size += 256; // encryption key size += m_Identity->GetSigningPublicKeyLen (); // unused signing key + if (size + 1 > m_BufferLen) + { + LogPrint (eLogError, "LeaseSet: ", int(size), " exceeds buffer size ", int(m_BufferLen)); + m_IsValid = false; + return; + } uint8_t num = m_Buffer[size]; size++; // num - LogPrint (eLogDebug, "LeaseSet: read num=", (int)num); + LogPrint (eLogDebug, "LeaseSet: Read num=", (int)num); if (!num || num > MAX_NUM_LEASES) { - LogPrint (eLogError, "LeaseSet: incorrect number of leases", (int)num); + LogPrint (eLogError, "LeaseSet: Incorrect number of leases", (int)num); + m_IsValid = false; + return; + } + if (size + num*LEASE_SIZE > m_BufferLen) + { + LogPrint (eLogError, "LeaseSet: ", int(size), " exceeds buffer size ", int(m_BufferLen)); m_IsValid = false; return; } UpdateLeasesBegin (); - // process leases m_ExpirationTime = 0; auto ts = i2p::util::GetMillisecondsSinceEpoch (); @@ -97,19 +106,27 @@ namespace data } if (!m_ExpirationTime) { - LogPrint (eLogWarning, "LeaseSet: all leases are expired. Dropped"); + LogPrint (eLogWarning, "LeaseSet: All leases are expired. Dropped"); m_IsValid = false; return; } m_ExpirationTime += LEASE_ENDDATE_THRESHOLD; - UpdateLeasesEnd (); // verify - if (verifySignature && !m_Identity->Verify (m_Buffer, leases - m_Buffer, leases)) + if (verifySignature) { - LogPrint (eLogWarning, "LeaseSet: verification failed"); - m_IsValid = false; + auto signedSize = leases - m_Buffer; + if (signedSize + m_Identity->GetSignatureLen () > m_BufferLen) + { + LogPrint (eLogError, "LeaseSet: Signature exceeds buffer size ", int(m_BufferLen)); + m_IsValid = false; + } + else if (!m_Identity->Verify (m_Buffer, signedSize, leases)) + { + LogPrint (eLogWarning, "LeaseSet: Verification failed"); + m_IsValid = false; + } } } @@ -149,23 +166,16 @@ namespace data m_ExpirationTime = lease.endDate; if (m_StoreLeases) { - auto ret = m_Leases.insert (std::make_shared(lease)); + auto ret = m_Leases.insert (i2p::data::netdb.NewLease (lease)); if (!ret.second) (*ret.first)->endDate = lease.endDate; // update existing (*ret.first)->isUpdated = true; - // check if lease's gateway is in our netDb - if (!netdb.FindRouter (lease.tunnelGateway)) - { - // if not found request it - LogPrint (eLogInfo, "LeaseSet: Lease's tunnel gateway not found, requesting"); - netdb.RequestDestination (lease.tunnelGateway); - } } } else - LogPrint (eLogWarning, "LeaseSet: Lease is expired already "); + LogPrint (eLogWarning, "LeaseSet: Lease is expired already"); } - uint64_t LeaseSet::ExtractTimestamp (const uint8_t * buf, size_t len) const + uint64_t LeaseSet::ExtractExpirationTimestamp (const uint8_t * buf, size_t len) const { if (!m_Identity) return 0; size_t size = m_Identity->GetFullLen (); @@ -190,7 +200,7 @@ namespace data bool LeaseSet::IsNewer (const uint8_t * buf, size_t len) const { - return ExtractTimestamp (buf, len) > ExtractTimestamp (m_Buffer, m_BufferLen); + return ExtractExpirationTimestamp (buf, len) > ExtractExpirationTimestamp (m_Buffer, m_BufferLen); } bool LeaseSet::ExpiresSoon(const uint64_t dlt, const uint64_t fudge) const @@ -201,10 +211,10 @@ namespace data return m_ExpirationTime - now <= dlt; } - const std::vector > LeaseSet::GetNonExpiredLeases (bool withThreshold) const - { - return GetNonExpiredLeasesExcluding( [] (const Lease & l) -> bool { return false; }, withThreshold); - } + const std::vector > LeaseSet::GetNonExpiredLeases (bool withThreshold) const + { + return GetNonExpiredLeasesExcluding( [] (const Lease & l) -> bool { return false; }, withThreshold); + } const std::vector > LeaseSet::GetNonExpiredLeasesExcluding (LeaseInspectFunc exclude, bool withThreshold) const { @@ -238,198 +248,83 @@ namespace data return ts > m_ExpirationTime; } - void LeaseSet::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const + void LeaseSet::Encrypt (const uint8_t * data, uint8_t * encrypted) const { if (!m_EncryptionKey) return; auto encryptor = m_Identity->CreateEncryptor (m_EncryptionKey); if (encryptor) - encryptor->Encrypt (data, encrypted, ctx, true); + encryptor->Encrypt (data, encrypted); } void LeaseSet::SetBuffer (const uint8_t * buf, size_t len) { - if (m_Buffer) delete[] m_Buffer; - m_Buffer = new uint8_t[len]; + if (len > MAX_LS_BUFFER_SIZE) + { + LogPrint (eLogError, "LeaseSet: Buffer is too long ", len); + len = MAX_LS_BUFFER_SIZE; + } + if (m_Buffer && len > m_BufferLen) + { + delete[] m_Buffer; + m_Buffer = nullptr; + } + if (!m_Buffer) + m_Buffer = new uint8_t[len]; m_BufferLen = len; memcpy (m_Buffer, buf, len); } - BlindedPublicKey::BlindedPublicKey (std::shared_ptr identity, SigningKeyType blindedKeyType): - m_BlindedSigType (blindedKeyType) + void LeaseSet::SetBufferLen (size_t len) { - if (!identity) return; - auto len = identity->GetSigningPublicKeyLen (); - m_PublicKey.resize (len); - memcpy (m_PublicKey.data (), identity->GetSigningPublicKeyBuffer (), len); - m_SigType = identity->GetSigningKeyType (); - } - - BlindedPublicKey::BlindedPublicKey (const std::string& b33) - { - uint8_t addr[40]; // TODO: define length from b33 - size_t l = i2p::data::Base32ToByteStream (b33.c_str (), b33.length (), addr, 40); - uint32_t checksum = crc32 (0, addr + 3, l - 3); - // checksum is Little Endian - addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16); - uint8_t flag = addr[0]; - size_t offset = 1; - if (flag & 0x01) // two bytes signatures - { - m_SigType = bufbe16toh (addr + offset); offset += 2; - m_BlindedSigType = bufbe16toh (addr + offset); offset += 2; - } - else // one byte sig - { - m_SigType = addr[offset]; offset++; - m_BlindedSigType = addr[offset]; offset++; - } - std::unique_ptr blindedVerifier (i2p::data::IdentityEx::CreateVerifier (m_SigType)); - if (blindedVerifier) - { - auto len = blindedVerifier->GetPublicKeyLen (); - if (offset + len <= l) - { - m_PublicKey.resize (len); - memcpy (m_PublicKey.data (), addr + offset, len); - } - else - LogPrint (eLogError, "LeaseSet2: public key in b33 address is too short for signature type ", (int)m_SigType); - } + if (len <= m_BufferLen) m_BufferLen = len; else - LogPrint (eLogError, "LeaseSet2: unknown signature type ", (int)m_SigType, " in b33"); + LogPrint (eLogError, "LeaseSet2: Actual buffer size ", int(len) , " exceeds full buffer size ", int(m_BufferLen)); } - std::string BlindedPublicKey::ToB33 () const + LeaseSet2::LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases, CryptoKeyType preferredCrypto): + LeaseSet (storeLeases), m_StoreType (storeType), m_EncryptionType (preferredCrypto) { - if (m_PublicKey.size () > 32) return ""; // assume 25519 - uint8_t addr[35]; char str[60]; // TODO: define actual length - addr[0] = 0; // flags - addr[1] = m_SigType; // sig type - addr[2] = m_BlindedSigType; // blinded sig type - memcpy (addr + 3, m_PublicKey.data (), m_PublicKey.size ()); - uint32_t checksum = crc32 (0, addr + 3, m_PublicKey.size ()); - // checksum is Little Endian - addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16); - auto l = ByteStreamToBase32 (addr, m_PublicKey.size () + 3, str, 60); - return std::string (str, str + l); - } - - void BlindedPublicKey::GetCredential (uint8_t * credential) const - { - // A = destination's signing public key - // stA = signature type of A, 2 bytes big endian - uint16_t stA = htobe16 (GetSigType ()); - // stA1 = signature type of blinded A, 2 bytes big endian - uint16_t stA1 = htobe16 (GetBlindedSigType ()); - // credential = H("credential", A || stA || stA1) - H ("credential", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, credential); - } - - void BlindedPublicKey::GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const - { - uint8_t credential[32]; - GetCredential (credential); - // subcredential = H("subcredential", credential || blindedPublicKey) - H ("subcredential", { {credential, 32}, {blinded, len} }, subcredential); - } - - void BlindedPublicKey::GenerateAlpha (const char * date, uint8_t * seed) const - { - uint16_t stA = htobe16 (GetSigType ()), stA1 = htobe16 (GetBlindedSigType ()); - uint8_t salt[32]; - //seed = HKDF(H("I2PGenerateAlpha", keydata), datestring || secret, "i2pblinding1", 64) - H ("I2PGenerateAlpha", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, salt); - i2p::crypto::HKDF (salt, (const uint8_t *)date, 8, "i2pblinding1", seed); - } - - void BlindedPublicKey::GetBlindedKey (const char * date, uint8_t * blindedKey) const - { - uint8_t seed[64]; - GenerateAlpha (date, seed); - i2p::crypto::GetEd25519 ()->BlindPublicKey (GetPublicKey (), seed, blindedKey); - } - - void BlindedPublicKey::BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const - { - uint8_t seed[64]; - GenerateAlpha (date, seed); - i2p::crypto::GetEd25519 ()->BlindPrivateKey (priv, seed, blindedPriv, blindedPub); - } - - void BlindedPublicKey::H (const std::string& p, const std::vector >& bufs, uint8_t * hash) const - { - SHA256_CTX ctx; - SHA256_Init (&ctx); - SHA256_Update (&ctx, p.c_str (), p.length ()); - for (const auto& it: bufs) - SHA256_Update (&ctx, it.first, it.second); - SHA256_Final (hash, &ctx); - } - - i2p::data::IdentHash BlindedPublicKey::GetStoreHash (const char * date) const - { - i2p::data::IdentHash hash; - if (m_BlindedSigType == i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519 || - m_BlindedSigType == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519) - { - uint8_t blinded[32]; - if (date) - GetBlindedKey (date, blinded); - else - { - char currentDate[9]; - i2p::util::GetCurrentDate (currentDate); - GetBlindedKey (currentDate, blinded); - } - auto stA1 = htobe16 (m_BlindedSigType); - SHA256_CTX ctx; - SHA256_Init (&ctx); - SHA256_Update (&ctx, (const uint8_t *)&stA1, 2); - SHA256_Update (&ctx, blinded, 32); - SHA256_Final ((uint8_t *)hash, &ctx); - } - else - LogPrint (eLogError, "LeaseSet2: blinded key type ", (int)m_BlindedSigType, " is not supported"); - return hash; - } - - LeaseSet2::LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases): - LeaseSet (storeLeases), m_StoreType (storeType), m_OrigStoreType (storeType) - { SetBuffer (buf, len); if (storeType == NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) - ReadFromBufferEncrypted (buf, len, nullptr); + ReadFromBufferEncrypted (buf, len, nullptr, nullptr); else ReadFromBuffer (buf, len); } - LeaseSet2::LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr key): - LeaseSet (true), m_StoreType (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2), m_OrigStoreType (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) + LeaseSet2::LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr key, + const uint8_t * secret, CryptoKeyType preferredCrypto): + LeaseSet (true), m_StoreType (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2), m_EncryptionType (preferredCrypto) { - ReadFromBufferEncrypted (buf, len, key); + ReadFromBufferEncrypted (buf, len, key, secret); } void LeaseSet2::Update (const uint8_t * buf, size_t len, bool verifySignature) - { + { SetBuffer (buf, len); if (GetStoreType () != NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) - ReadFromBuffer (buf, len, false, verifySignature); + ReadFromBuffer (buf, len, false, verifySignature); // TODO: implement encrypted } - + + bool LeaseSet2::IsNewer (const uint8_t * buf, size_t len) const + { + uint64_t expiration; + return ExtractPublishedTimestamp (buf, len, expiration) > m_PublishedTimestamp; + } + void LeaseSet2::ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity, bool verifySignature) { // standard LS2 header std::shared_ptr identity; - if (readIdentity) - { - identity = std::make_shared(buf, len); + if (readIdentity || !GetIdentity ()) + { + identity = netdb.NewIdentity (buf, len); SetIdentity (identity); } else identity = GetIdentity (); size_t offset = identity->GetFullLen (); - if (offset + 8 >= len) return; + if (offset + 8 > len) return; m_PublishedTimestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds) uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds) SetExpirationTime ((m_PublishedTimestamp + expires)*1000LL); // in milliseconds @@ -439,11 +334,17 @@ namespace data // transient key m_TransientVerifier = ProcessOfflineSignature (identity, buf, len, offset); if (!m_TransientVerifier) - { - LogPrint (eLogError, "LeaseSet2: offline signature failed"); + { + LogPrint (eLogError, "LeaseSet2: Offline signature failed"); return; } } + if (flags & LEASESET2_FLAG_UNPUBLISHED_LEASESET) m_IsPublic = false; + if (flags & LEASESET2_FLAG_PUBLISHED_ENCRYPTED) + { + m_IsPublishedEncrypted = true; + m_IsPublic = true; + } // type specific part size_t s = 0; switch (m_StoreType) @@ -460,12 +361,20 @@ namespace data if (!s) return; offset += s; if (verifySignature || m_TransientVerifier) - { + { // verify signature bool verified = m_TransientVerifier ? VerifySignature (m_TransientVerifier, buf, len, offset) : - VerifySignature (identity, buf, len, offset); - SetIsValid (verified); + VerifySignature (identity, buf, len, offset); + SetIsValid (verified); } + else + SetIsValid (true); + offset += m_TransientVerifier ? m_TransientVerifier->GetSignatureLen () : identity->GetSignatureLen (); + if (offset > len) { + LogPrint (eLogWarning, "LeaseSet2: short buffer: wanted ", int(offset), "bytes, have ", int(len)); + return; + } + SetBufferLen (offset); } template @@ -473,13 +382,13 @@ namespace data { if (signatureOffset + verifier->GetSignatureLen () > len) return false; // we assume buf inside DatabaseStore message, so buf[-1] is valid memory - // change it for signature verification, and restore back + // change it for signature verification, and restore back uint8_t c = buf[-1]; const_cast(buf)[-1] = m_StoreType; - bool verified = verifier->Verify (buf - 1, signatureOffset + 1, buf + signatureOffset); + bool verified = verifier->Verify (buf - 1, signatureOffset + 1, buf + signatureOffset); const_cast(buf)[-1] = c; if (!verified) - LogPrint (eLogWarning, "LeaseSet2: verification failed"); + LogPrint (eLogWarning, "LeaseSet2: Verification failed"); return verified; } @@ -487,35 +396,55 @@ namespace data { size_t offset = 0; // properties - uint16_t propertiesLen = bufbe16toh (buf + offset); offset += 2; + uint16_t propertiesLen = bufbe16toh (buf + offset); offset += 2; offset += propertiesLen; // skip for now. TODO: implement properties - if (offset + 1 >= len) return 0; // key sections - uint16_t currentKeyType = 0; + CryptoKeyType preferredKeyType = m_EncryptionType; + m_EncryptionType = 0; + bool preferredKeyFound = false; + if (offset + 1 > len) return 0; int numKeySections = buf[offset]; offset++; for (int i = 0; i < numKeySections; i++) { + if (offset + 4 > len) return 0; uint16_t keyType = bufbe16toh (buf + offset); offset += 2; // encryption key type - if (offset + 2 >= len) return 0; - uint16_t encryptionKeyLen = bufbe16toh (buf + offset); offset += 2; - if (offset + encryptionKeyLen >= len) return 0; - if (IsStoreLeases ()) // create encryptor with leases only + uint16_t encryptionKeyLen = bufbe16toh (buf + offset); offset += 2; + if (offset + encryptionKeyLen > len) return 0; + if (IsStoreLeases () && !preferredKeyFound) // create encryptor with leases only { - // we pick first valid key, higher key type has higher priority 4-1-0 - // if two keys with of the same type, pick first - auto encryptor = i2p::data::IdentityEx::CreateEncryptor (keyType, buf + offset); - if (encryptor && (!m_Encryptor || keyType > currentKeyType)) - { - m_Encryptor = encryptor; // TODO: atomic - currentKeyType = keyType; - } + // we pick max key type if preferred not found +#if !OPENSSL_PQ + if (keyType <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) // skip PQ keys if not supported +#endif + { + if (keyType == preferredKeyType || !m_Encryptor || keyType > m_EncryptionType) + { + auto encryptor = i2p::data::IdentityEx::CreateEncryptor (keyType, buf + offset); + if (encryptor) + { + m_Encryptor = encryptor; // TODO: atomic + m_EncryptionType = keyType; + if (keyType == preferredKeyType) preferredKeyFound = true; + } + } + } } - offset += encryptionKeyLen; - } + offset += encryptionKeyLen; + } // leases - if (offset + 1 >= len) return 0; + if (offset + 1 > len) return 0; int numLeases = buf[offset]; offset++; auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (GetExpirationTime () > ts + LEASESET_EXPIRATION_TIME_THRESHOLD) + { + LogPrint (eLogWarning, "LeaseSet2: Expiration time is from future ", GetExpirationTime ()/1000LL); + return 0; + } + if (ts > m_PublishedTimestamp*1000LL + LEASESET_EXPIRATION_TIME_THRESHOLD) + { + LogPrint (eLogWarning, "LeaseSet2: Published time is too old ", m_PublishedTimestamp); + return 0; + } if (IsStoreLeases ()) { UpdateLeasesBegin (); @@ -526,35 +455,41 @@ namespace data lease.tunnelGateway = buf + offset; offset += 32; // gateway lease.tunnelID = bufbe32toh (buf + offset); offset += 4; // tunnel ID lease.endDate = bufbe32toh (buf + offset)*1000LL; offset += 4; // end date + if (lease.endDate > ts + LEASESET_EXPIRATION_TIME_THRESHOLD) + { + LogPrint (eLogWarning, "LeaseSet2: Lease end date is from future ", lease.endDate); + return 0; + } UpdateLease (lease, ts); } UpdateLeasesEnd (); } else offset += numLeases*LEASE2_SIZE; // 40 bytes per lease - return offset; + + return (offset > len ? 0 : offset); } size_t LeaseSet2::ReadMetaLS2TypeSpecificPart (const uint8_t * buf, size_t len) { size_t offset = 0; // properties - uint16_t propertiesLen = bufbe16toh (buf + offset); offset += 2; + uint16_t propertiesLen = bufbe16toh (buf + offset); offset += 2; offset += propertiesLen; // skip for now. TODO: implement properties - // entries - if (offset + 1 >= len) return 0; + // entries + if (offset + 1 > len) return 0; int numEntries = buf[offset]; offset++; for (int i = 0; i < numEntries; i++) { - if (offset + 40 >= len) return 0; + if (offset + LEASE2_SIZE > len) return 0; offset += 32; // hash offset += 3; // flags - offset += 1; // cost + offset += 1; // cost offset += 4; // expires } // revocations - if (offset + 1 >= len) return 0; - int numRevocations = buf[offset]; offset++; + if (offset + 1 > len) return 0; + int numRevocations = buf[offset]; offset++; for (int i = 0; i < numRevocations; i++) { if (offset + 32 > len) return 0; @@ -563,7 +498,7 @@ namespace data return offset; } - void LeaseSet2::ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr key) + void LeaseSet2::ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr key, const uint8_t * secret) { size_t offset = 0; // blinded key @@ -572,7 +507,7 @@ namespace data uint16_t blindedKeyType = bufbe16toh (stA1); offset += 2; std::unique_ptr blindedVerifier (i2p::data::IdentityEx::CreateVerifier (blindedKeyType)); if (!blindedVerifier) return; - auto blindedKeyLen = blindedVerifier->GetPublicKeyLen (); + auto blindedKeyLen = blindedVerifier->GetPublicKeyLen (); if (offset + blindedKeyLen >= len) return; const uint8_t * blindedPublicKey = buf + offset; blindedVerifier->SetPublicKey (blindedPublicKey); offset += blindedKeyLen; @@ -587,38 +522,43 @@ namespace data { // transient key m_TransientVerifier = ProcessOfflineSignature (blindedVerifier, buf, len, offset); - if (!m_TransientVerifier) + if (!m_TransientVerifier) { - LogPrint (eLogError, "LeaseSet2: offline signature failed"); + LogPrint (eLogError, "LeaseSet2: Offline signature failed"); return; } } // outer ciphertext if (offset + 2 > len) return; uint16_t lenOuterCiphertext = bufbe16toh (buf + offset); offset += 2; - const uint8_t * outerCiphertext = buf + offset; - offset += lenOuterCiphertext; + const uint8_t * outerCiphertext = buf + offset; + offset += lenOuterCiphertext; // verify signature bool verified = m_TransientVerifier ? VerifySignature (m_TransientVerifier, buf, len, offset) : - VerifySignature (blindedVerifier, buf, len, offset); + VerifySignature (blindedVerifier, buf, len, offset); SetIsValid (verified); // handle ciphertext if (verified && key && lenOuterCiphertext >= 32) { - SetIsValid (false); // we must verify it again in Layer 2 - if (blindedKeyType == i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519) + SetIsValid (false); // we must verify it again in Layer 2 + if (blindedKeyType == key->GetBlindedSigType ()) { // verify blinding char date[9]; i2p::util::GetDateString (m_PublishedTimestamp, date); - uint8_t blinded[32]; - key->GetBlindedKey (date, blinded); - if (memcmp (blindedPublicKey, blinded, 32)) + std::vector blinded (blindedKeyLen); + key->GetBlindedKey (date, blinded.data ()); + if (memcmp (blindedPublicKey, blinded.data (), blindedKeyLen)) { - LogPrint (eLogError, "LeaseSet2: blinded public key doesn't match"); + LogPrint (eLogError, "LeaseSet2: Blinded public key doesn't match"); return; - } - } + } + } + else + { + LogPrint (eLogError, "LeaseSet2: Unexpected blinded key type ", blindedKeyType, " instead ", key->GetBlindedSigType ()); + return; + } // outer key // outerInput = subcredential || publishedTimestamp uint8_t subcredential[36]; @@ -635,40 +575,141 @@ namespace data std::vector outerPlainText (lenOuterPlaintext); i2p::crypto::ChaCha20 (outerCiphertext + 32, lenOuterPlaintext, keys, keys + 32, outerPlainText.data ()); // inner key - // innerInput = authCookie || subcredential || publishedTimestamp, TODO: non-empty authCookie + // innerInput = authCookie || subcredential || publishedTimestamp // innerSalt = innerCiphertext[0:32] // keys = HKDF(innerSalt, innerInput, "ELS2_L2K", 44) - // skip 1 byte flags - i2p::crypto::HKDF (outerPlainText.data () + 1, subcredential, 36, "ELS2_L2K", keys); // no authCookie + uint8_t innerInput[68]; + size_t authDataLen = ExtractClientAuthData (outerPlainText.data (), lenOuterPlaintext, secret, subcredential, innerInput); + if (authDataLen > 0) + { + memcpy (innerInput + 32, subcredential, 36); + i2p::crypto::HKDF (outerPlainText.data () + 1 + authDataLen, innerInput, 68, "ELS2_L2K", keys); + } + else + // no authData presented, innerInput = subcredential || publishedTimestamp + // skip 1 byte flags + i2p::crypto::HKDF (outerPlainText.data () + 1, subcredential, 36, "ELS2_L2K", keys); // no authCookie // decrypt Layer 2 // innerKey = keys[0:31] // innerIV = keys[32:43] - size_t lenInnerPlaintext = lenOuterPlaintext - 32 - 1; + size_t lenInnerPlaintext = lenOuterPlaintext - 32 - 1 - authDataLen; std::vector innerPlainText (lenInnerPlaintext); - i2p::crypto::ChaCha20 (outerPlainText.data () + 32 + 1, lenInnerPlaintext, keys, keys + 32, innerPlainText.data ()); + i2p::crypto::ChaCha20 (outerPlainText.data () + 32 + 1 + authDataLen, lenInnerPlaintext, keys, keys + 32, innerPlainText.data ()); if (innerPlainText[0] == NETDB_STORE_TYPE_STANDARD_LEASESET2 || innerPlainText[0] == NETDB_STORE_TYPE_META_LEASESET2) { // override store type and buffer - m_StoreType = innerPlainText[0]; + m_StoreType = innerPlainText[0]; SetBuffer (innerPlainText.data () + 1, lenInnerPlaintext - 1); // parse and verify Layer 2 ReadFromBuffer (innerPlainText.data () + 1, lenInnerPlaintext - 1); } else - LogPrint (eLogError, "LeaseSet2: unexpected LeaseSet type ", (int)innerPlainText[0], " inside encrypted LeaseSet"); - } + LogPrint (eLogError, "LeaseSet2: Unexpected LeaseSet type ", (int)innerPlainText[0], " inside encrypted LeaseSet"); + } + else + { + // we set actual length of encrypted buffer + offset += m_TransientVerifier ? m_TransientVerifier->GetSignatureLen () : blindedVerifier->GetSignatureLen (); + SetBufferLen (offset); + } } - void LeaseSet2::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const + // helper for ExtractClientAuthData + static inline bool GetAuthCookie (const uint8_t * authClients, int numClients, const uint8_t * okm, uint8_t * authCookie) + { + // try to find clientCookie_i for clientID_i = okm[44:51] + for (int i = 0; i < numClients; i++) + { + if (!memcmp (okm + 44, authClients + i*40, 8)) // clientID_i + { + // clientKey_i = okm[0:31] + // clientIV_i = okm[32:43] + i2p::crypto::ChaCha20 (authClients + i*40 + 8, 32, okm, okm + 32, authCookie); // clientCookie_i + return true; + } + } + return false; + } + + size_t LeaseSet2::ExtractClientAuthData (const uint8_t * buf, size_t len, const uint8_t * secret, const uint8_t * subcredential, uint8_t * authCookie) const + { + size_t offset = 0; + uint8_t flag = buf[offset]; offset++; // flag + if (flag & 0x01) // client auth + { + if (!(flag & 0x0E)) // DH, bit 1-3 all zeroes + { + const uint8_t * ephemeralPublicKey = buf + offset; offset += 32; // ephemeralPublicKey + uint16_t numClients = bufbe16toh (buf + offset); offset += 2; // clients + const uint8_t * authClients = buf + offset; offset += numClients*40; // authClients + if (offset > len) + { + LogPrint (eLogError, "LeaseSet2: Too many clients ", numClients, " in DH auth data"); + return 0; + } + // calculate authCookie + if (secret) + { + i2p::crypto::X25519Keys ck (secret, nullptr); // derive cpk_i from csk_i + uint8_t authInput[100]; + ck.Agree (ephemeralPublicKey, authInput); // sharedSecret is first 32 bytes of authInput + memcpy (authInput + 32, ck.GetPublicKey (), 32); // cpk_i + memcpy (authInput + 64, subcredential, 36); + uint8_t okm[64]; // 52 actual data + i2p::crypto::HKDF (ephemeralPublicKey, authInput, 100, "ELS2_XCA", okm); + if (!GetAuthCookie (authClients, numClients, okm, authCookie)) + LogPrint (eLogError, "LeaseSet2: Client cookie DH not found"); + } + else + LogPrint (eLogError, "LeaseSet2: Can't calculate authCookie: csk_i is not provided"); + } + else if (flag & 0x02) // PSK, bit 1 is set to 1 + { + const uint8_t * authSalt = buf + offset; offset += 32; // authSalt + uint16_t numClients = bufbe16toh (buf + offset); offset += 2; // clients + const uint8_t * authClients = buf + offset; offset += numClients*40; // authClients + if (offset > len) + { + LogPrint (eLogError, "LeaseSet2: Too many clients ", numClients, " in PSK auth data"); + return 0; + } + // calculate authCookie + if (secret) + { + uint8_t authInput[68]; + memcpy (authInput, secret, 32); + memcpy (authInput + 32, subcredential, 36); + uint8_t okm[64]; // 52 actual data + i2p::crypto::HKDF (authSalt, authInput, 68, "ELS2PSKA", okm); + if (!GetAuthCookie (authClients, numClients, okm, authCookie)) + LogPrint (eLogError, "LeaseSet2: Client cookie PSK not found"); + } + else + LogPrint (eLogError, "LeaseSet2: Can't calculate authCookie: psk_i is not provided"); + } + else + LogPrint (eLogError, "LeaseSet2: Unknown client auth type ", (int)flag); + } + return offset - 1; + } + + void LeaseSet2::Encrypt (const uint8_t * data, uint8_t * encrypted) const { auto encryptor = m_Encryptor; // TODO: atomic if (encryptor) - encryptor->Encrypt (data, encrypted, ctx, true); + encryptor->Encrypt (data, encrypted); } - uint64_t LeaseSet2::ExtractTimestamp (const uint8_t * buf, size_t len) const + uint64_t LeaseSet2::ExtractExpirationTimestamp (const uint8_t * buf, size_t len) const { - if (len < 8) return 0; + uint64_t expiration = 0; + ExtractPublishedTimestamp (buf, len, expiration); + return expiration; + } + + uint64_t LeaseSet2::ExtractPublishedTimestamp (const uint8_t * buf, size_t len, uint64_t& expiration) const + { + if (len < 8) return 0; if (m_StoreType == NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) { // encrypted LS2 @@ -676,12 +717,13 @@ namespace data uint16_t blindedKeyType = bufbe16toh (buf + offset); offset += 2; std::unique_ptr blindedVerifier (i2p::data::IdentityEx::CreateVerifier (blindedKeyType)); if (!blindedVerifier) return 0 ; - auto blindedKeyLen = blindedVerifier->GetPublicKeyLen (); + auto blindedKeyLen = blindedVerifier->GetPublicKeyLen (); if (offset + blindedKeyLen + 6 >= len) return 0; offset += blindedKeyLen; - uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; - uint16_t expires = bufbe16toh (buf + offset); offset += 2; - return (timestamp + expires)* 1000LL; + uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; + uint16_t expires = bufbe16toh (buf + offset); offset += 2; + expiration = (timestamp + expires)* 1000LL; + return timestamp; } else { @@ -689,9 +731,10 @@ namespace data if (!identity) return 0; size_t offset = identity->GetFullLen (); if (offset + 6 >= len) return 0; - uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; - uint16_t expires = bufbe16toh (buf + offset); offset += 2; - return (timestamp + expires)* 1000LL; + uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; + uint16_t expires = bufbe16toh (buf + offset); offset += 2; + expiration = (timestamp + expires)* 1000LL; + return timestamp; } } @@ -710,26 +753,42 @@ namespace data memset (m_Buffer + offset, 0, signingKeyLen); offset += signingKeyLen; // num leases + auto numLeasesPos = offset; m_Buffer[offset] = num; offset++; // leases m_Leases = m_Buffer + offset; auto currentTime = i2p::util::GetMillisecondsSinceEpoch (); + int skipped = 0; for (int i = 0; i < num; i++) { + uint64_t ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // 1 minute before expiration + ts *= 1000; // in milliseconds + if (ts <= currentTime) + { + // already expired, skip + skipped++; + continue; + } + if (ts > m_ExpirationTime) m_ExpirationTime = ts; + // make sure leaseset is newer than previous, but adding some time to expiration date + ts += (currentTime - tunnels[i]->GetCreationTime ()*1000LL)*2/i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT; // up to 2 secs memcpy (m_Buffer + offset, tunnels[i]->GetNextIdentHash (), 32); offset += 32; // gateway id htobe32buf (m_Buffer + offset, tunnels[i]->GetNextTunnelID ()); offset += 4; // tunnel id - uint64_t ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // 1 minute before expiration - ts *= 1000; // in milliseconds - if (ts > m_ExpirationTime) m_ExpirationTime = ts; - // make sure leaseset is newer than previous, but adding some time to expiration date - ts += (currentTime - tunnels[i]->GetCreationTime ()*1000LL)*2/i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT; // up to 2 secs htobe64buf (m_Buffer + offset, ts); offset += 8; // end date } - // we don't sign it yet. must be signed later on + if (skipped > 0) + { + // adjust num leases + if (skipped > num) skipped = num; + num -= skipped; + m_BufferLen -= skipped*LEASE_SIZE; + m_Buffer[numLeasesPos] = num; + } + // we don't sign it yet. must be signed later on } LocalLeaseSet::LocalLeaseSet (std::shared_ptr identity, const uint8_t * buf, size_t len): @@ -760,7 +819,7 @@ namespace data size_t size = ident.GetFullLen (); if (size > sz) { - LogPrint (eLogError, "LeaseSet: identity length ", size, " exceeds buffer size ", sz); + LogPrint (eLogError, "LeaseSet: Identity length ", size, " exceeds buffer size ", sz); return false; } // encryption key @@ -771,7 +830,7 @@ namespace data ++size; if (!numLeases || numLeases > MAX_NUM_LEASES) { - LogPrint (eLogError, "LeaseSet: incorrect number of leases", (int)numLeases); + LogPrint (eLogError, "LeaseSet: Incorrect number of leases", (int)numLeases); return false; } const uint8_t * leases = ptr + size; @@ -788,30 +847,38 @@ namespace data return ident.Verify(ptr, leases - ptr, leases); } - LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, - uint16_t keyType, uint16_t keyLen, const uint8_t * encryptionPublicKey, - std::vector > tunnels): + LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, + const EncryptionKeys& encryptionKeys, const std::vector >& tunnels, + bool isPublic, uint64_t publishedTimestamp, bool isPublishedEncrypted): LocalLeaseSet (keys.GetPublic (), nullptr, 0) { auto identity = keys.GetPublic (); - // assume standard LS2 + // assume standard LS2 int num = tunnels.size (); if (num > MAX_NUM_LEASES) num = MAX_NUM_LEASES; + size_t keySectionsLen = 0; + for (const auto& it: encryptionKeys) + keySectionsLen += 2/*key type*/ + 2/*key len*/ + it->pub.size()/*key*/; m_BufferLen = identity->GetFullLen () + 4/*published*/ + 2/*expires*/ + 2/*flag*/ + 2/*properties len*/ + - 1/*num keys*/ + 2/*key type*/ + 2/*key len*/ + keyLen/*key*/ + 1/*num leases*/ + num*LEASE2_SIZE + keys.GetSignatureLen (); + 1/*num keys*/ + keySectionsLen + 1/*num leases*/ + num*LEASE2_SIZE + keys.GetSignatureLen (); uint16_t flags = 0; - if (keys.IsOfflineSignature ()) + if (keys.IsOfflineSignature ()) { flags |= LEASESET2_FLAG_OFFLINE_KEYS; - m_BufferLen += keys.GetOfflineSignature ().size (); + m_BufferLen += keys.GetOfflineSignature ().size (); } + if (isPublishedEncrypted) + { + flags |= LEASESET2_FLAG_PUBLISHED_ENCRYPTED; + isPublic = true; + } + if (!isPublic) flags |= LEASESET2_FLAG_UNPUBLISHED_LEASESET; m_Buffer = new uint8_t[m_BufferLen + 1]; - m_Buffer[0] = storeType; + m_Buffer[0] = storeType; // LS2 header auto offset = identity->ToBuffer (m_Buffer + 1, m_BufferLen) + 1; - auto timestamp = i2p::util::GetSecondsSinceEpoch (); - htobe32buf (m_Buffer + offset, timestamp); offset += 4; // published timestamp (seconds) + htobe32buf (m_Buffer + offset, publishedTimestamp); offset += 4; // published timestamp (seconds) uint8_t * expiresBuf = m_Buffer + offset; offset += 2; // expires, fill later htobe16buf (m_Buffer + offset, flags); offset += 2; // flags if (keys.IsOfflineSignature ()) @@ -822,29 +889,56 @@ namespace data offset += offlineSignature.size (); } htobe16buf (m_Buffer + offset, 0); offset += 2; // properties len - // keys - m_Buffer[offset] = 1; offset++; // 1 key - htobe16buf (m_Buffer + offset, keyType); offset += 2; // key type - htobe16buf (m_Buffer + offset, keyLen); offset += 2; // key len - memcpy (m_Buffer + offset, encryptionPublicKey, keyLen); offset += keyLen; // key + // keys + m_Buffer[offset] = encryptionKeys.size (); offset++; // 1 key + for (const auto& it: encryptionKeys) + { + htobe16buf (m_Buffer + offset, it->keyType); offset += 2; // key type + htobe16buf (m_Buffer + offset, it->pub.size()); offset += 2; // key len + memcpy (m_Buffer + offset, it->pub.data(), it->pub.size()); offset += it->pub.size(); // key + } // leases uint32_t expirationTime = 0; // in seconds + int skipped = 0; auto numLeasesPos = offset; m_Buffer[offset] = num; offset++; // num leases for (int i = 0; i < num; i++) { + auto ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // in seconds, 1 minute before expiration + if (ts <= publishedTimestamp) + { + // already expired, skip + skipped++; + continue; + } + if (ts > expirationTime) expirationTime = ts; memcpy (m_Buffer + offset, tunnels[i]->GetNextIdentHash (), 32); offset += 32; // gateway id htobe32buf (m_Buffer + offset, tunnels[i]->GetNextTunnelID ()); offset += 4; // tunnel id - auto ts = tunnels[i]->GetCreationTime () + i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD; // in seconds, 1 minute before expiration - if (ts > expirationTime) expirationTime = ts; htobe32buf (m_Buffer + offset, ts); offset += 4; // end date + } + if (skipped > 0) + { + // adjust num leases + if (skipped > num) skipped = num; + num -= skipped; + m_BufferLen -= skipped*LEASE2_SIZE; + m_Buffer[numLeasesPos] = num; } // update expiration - SetExpirationTime (expirationTime*1000LL); - auto expires = expirationTime - timestamp; - htobe16buf (expiresBuf, expires > 0 ? expires : 0); + if (expirationTime) + { + SetExpirationTime (expirationTime*1000LL); + auto expires = (int)expirationTime - publishedTimestamp; + htobe16buf (expiresBuf, expires > 0 ? expires : 0); + } + else + { + // no tunnels or withdraw + SetExpirationTime (publishedTimestamp*1000LL); + memset (expiresBuf, 0, 2); // expires immeditely + } // sign keys.Sign (m_Buffer, offset, m_Buffer + offset); // LS + leading store type } @@ -858,52 +952,81 @@ namespace data m_Buffer[0] = storeType; } - LocalEncryptedLeaseSet2::LocalEncryptedLeaseSet2 (std::shared_ptr ls, const i2p::data::PrivateKeys& keys, i2p::data::SigningKeyType blindedKeyType): + LocalEncryptedLeaseSet2::LocalEncryptedLeaseSet2 (std::shared_ptr ls, const i2p::data::PrivateKeys& keys, + int authType, std::shared_ptr > authKeys): LocalLeaseSet2 (ls->GetIdentity ()), m_InnerLeaseSet (ls) { - size_t lenInnerPlaintext = ls->GetBufferLen () + 1, lenOuterPlaintext = lenInnerPlaintext + 32 + 1, - lenOuterCiphertext = lenOuterPlaintext + 32; + size_t lenInnerPlaintext = ls->GetBufferLen () + 1, lenOuterPlaintext = lenInnerPlaintext + 32 + 1; + uint8_t layer1Flags = 0; + if (authKeys) + { + if (authType == ENCRYPTED_LEASESET_AUTH_TYPE_DH) layer1Flags |= 0x01; // DH, authentication scheme 0, auth bit 1 + else if (authType == ENCRYPTED_LEASESET_AUTH_TYPE_PSK) layer1Flags |= 0x03; // PSK, authentication scheme 1, auth bit 1 + if (layer1Flags) + lenOuterPlaintext += 32 + 2 + authKeys->size ()*40; // auth data len + } + size_t lenOuterCiphertext = lenOuterPlaintext + 32; + m_BufferLen = 2/*blinded sig type*/ + 32/*blinded pub key*/ + 4/*published*/ + 2/*expires*/ + 2/*flags*/ + 2/*lenOuterCiphertext*/ + lenOuterCiphertext + 64/*signature*/; - m_Buffer = new uint8_t[m_BufferLen + 1]; + m_Buffer = new uint8_t[m_BufferLen + 1]; m_Buffer[0] = NETDB_STORE_TYPE_ENCRYPTED_LEASESET2; BlindedPublicKey blindedKey (ls->GetIdentity ()); - auto timestamp = i2p::util::GetSecondsSinceEpoch (); + auto timestamp = i2p::util::GetSecondsSinceEpoch (); char date[9]; i2p::util::GetDateString (timestamp, date); - uint8_t blindedPriv[32], blindedPub[32]; - blindedKey.BlindPrivateKey (keys.GetSigningPrivateKey (), date, blindedPriv, blindedPub); - std::unique_ptr blindedSigner (i2p::data::PrivateKeys::CreateSigner (blindedKeyType, blindedPriv)); + uint8_t blindedPriv[64], blindedPub[128]; // 64 and 128 max + size_t publicKeyLen = blindedKey.BlindPrivateKey (keys.GetSigningPrivateKey (), date, blindedPriv, blindedPub); + std::unique_ptr blindedSigner (i2p::data::PrivateKeys::CreateSigner (blindedKey.GetBlindedSigType (), blindedPriv)); + if (!blindedSigner) + { + LogPrint (eLogError, "LeaseSet2: Can't create blinded signer for signature type ", blindedKey.GetSigType ()); + return; + } auto offset = 1; - htobe16buf (m_Buffer + offset, blindedKeyType); offset += 2; // Blinded Public Key Sig Type - memcpy (m_Buffer + offset, blindedPub, 32); offset += 32; // Blinded Public Key + htobe16buf (m_Buffer + offset, blindedKey.GetBlindedSigType ()); offset += 2; // Blinded Public Key Sig Type + memcpy (m_Buffer + offset, blindedPub, publicKeyLen); offset += publicKeyLen; // Blinded Public Key htobe32buf (m_Buffer + offset, timestamp); offset += 4; // published timestamp (seconds) auto nextMidnight = (timestamp/86400LL + 1)*86400LL; // 86400 = 24*3600 seconds - auto expirationTime = ls->GetExpirationTime ()/1000LL; + auto expirationTime = ls->GetExpirationTime ()/1000LL; if (expirationTime > nextMidnight) expirationTime = nextMidnight; SetExpirationTime (expirationTime*1000LL); htobe16buf (m_Buffer + offset, expirationTime > timestamp ? expirationTime - timestamp : 0); offset += 2; // expires uint16_t flags = 0; - htobe16buf (m_Buffer + offset, flags); offset += 2; // flags + htobe16buf (m_Buffer + offset, flags); offset += 2; // flags htobe16buf (m_Buffer + offset, lenOuterCiphertext); offset += 2; // lenOuterCiphertext // outerChipherText - // Layer 1 + // Layer 1 uint8_t subcredential[36]; blindedKey.GetSubcredential (blindedPub, 32, subcredential); htobe32buf (subcredential + 32, timestamp); // outerInput = subcredential || publishedTimestamp // keys = HKDF(outerSalt, outerInput, "ELS2_L1K", 44) uint8_t keys1[64]; // 44 bytes actual data - RAND_bytes (m_Buffer + offset, 32); // outerSalt = CSRNG(32) + RAND_bytes (m_Buffer + offset, 32); // outerSalt = CSRNG(32) i2p::crypto::HKDF (m_Buffer + offset, subcredential, 36, "ELS2_L1K", keys1); offset += 32; // outerSalt - uint8_t * outerPlainText = m_Buffer + offset; - m_Buffer[offset] = 0; offset++; // flag + uint8_t * outerPlainText = m_Buffer + offset; + m_Buffer[offset] = layer1Flags; offset++; // layer 1 flags + // auth data + uint8_t innerInput[68]; // authCookie || subcredential || publishedTimestamp + if (layer1Flags) + { + RAND_bytes (innerInput, 32); // authCookie + CreateClientAuthData (subcredential, authType, authKeys, innerInput, m_Buffer + offset); + offset += 32 + 2 + authKeys->size ()*40; // auth clients + } // Layer 2 // keys = HKDF(outerSalt, outerInput, "ELS2_L2K", 44) uint8_t keys2[64]; // 44 bytes actual data - RAND_bytes (m_Buffer + offset, 32); // innerSalt = CSRNG(32) - i2p::crypto::HKDF (m_Buffer + offset, subcredential, 36, "ELS2_L2K", keys2); - offset += 32; // innerSalt - m_Buffer[offset] = ls->GetStoreType (); + RAND_bytes (m_Buffer + offset, 32); // innerSalt = CSRNG(32) + if (layer1Flags) + { + memcpy (innerInput + 32, subcredential, 36); // + subcredential || publishedTimestamp + i2p::crypto::HKDF (m_Buffer + offset, innerInput, 68, "ELS2_L2K", keys2); + } + else + i2p::crypto::HKDF (m_Buffer + offset, subcredential, 36, "ELS2_L2K", keys2); // no authCookie + offset += 32; // innerSalt + m_Buffer[offset] = ls->GetStoreType (); memcpy (m_Buffer + offset + 1, ls->GetBuffer (), ls->GetBufferLen ()); i2p::crypto::ChaCha20 (m_Buffer + offset, lenInnerPlaintext, keys2, keys2 + 32, m_Buffer + offset); // encrypt Layer 2 offset += lenInnerPlaintext; @@ -911,14 +1034,14 @@ namespace data // signature blindedSigner->Sign (m_Buffer, offset, m_Buffer + offset); // store hash - m_StoreHash = blindedKey.GetStoreHash (date); + m_StoreHash = blindedKey.GetStoreHash (date); } LocalEncryptedLeaseSet2::LocalEncryptedLeaseSet2 (std::shared_ptr identity, const uint8_t * buf, size_t len): - LocalLeaseSet2 (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2, identity, buf, len) + LocalLeaseSet2 (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2, identity, buf, len) { - // fill inner LeaseSet2 - auto blindedKey = std::make_shared(identity); + // fill inner LeaseSet2 + auto blindedKey = std::make_shared(identity); i2p::data::LeaseSet2 ls (buf, len, blindedKey); // inner layer if (ls.IsValid ()) { @@ -926,8 +1049,46 @@ namespace data m_StoreHash = blindedKey->GetStoreHash (); } else - LogPrint (eLogError, "LeaseSet2: couldn't extract inner layer"); + LogPrint (eLogError, "LeaseSet2: Couldn't extract inner layer"); + } + + void LocalEncryptedLeaseSet2::CreateClientAuthData (const uint8_t * subcredential, int authType, std::shared_ptr > authKeys, const uint8_t * authCookie, uint8_t * authData) const + { + if (authType == ENCRYPTED_LEASESET_AUTH_TYPE_DH) + { + i2p::crypto::X25519Keys ek; + ek.GenerateKeys (); // esk and epk + memcpy (authData, ek.GetPublicKey (), 32); authData += 32; // epk + htobe16buf (authData, authKeys->size ()); authData += 2; // num clients + uint8_t authInput[100]; // sharedSecret || cpk_i || subcredential || publishedTimestamp + memcpy (authInput + 64, subcredential, 36); + for (auto& it: *authKeys) + { + ek.Agree (it, authInput); // sharedSecret = DH(esk, cpk_i) + memcpy (authInput + 32, it, 32); + uint8_t okm[64]; // 52 actual data + i2p::crypto::HKDF (ek.GetPublicKey (), authInput, 100, "ELS2_XCA", okm); + memcpy (authData, okm + 44, 8); authData += 8; // clientID_i + i2p::crypto::ChaCha20 (authCookie, 32, okm, okm + 32, authData); authData += 32; // clientCookie_i + } + } + else // assume PSK + { + uint8_t authSalt[32]; + RAND_bytes (authSalt, 32); + memcpy (authData, authSalt, 32); authData += 32; // authSalt + htobe16buf (authData, authKeys->size ()); authData += 2; // num clients + uint8_t authInput[68]; // authInput = psk_i || subcredential || publishedTimestamp + memcpy (authInput + 32, subcredential, 36); + for (auto& it: *authKeys) + { + memcpy (authInput, it, 32); + uint8_t okm[64]; // 52 actual data + i2p::crypto::HKDF (authSalt, authInput, 68, "ELS2PSKA", okm); + memcpy (authData, okm + 44, 8); authData += 8; // clientID_i + i2p::crypto::ChaCha20 (authCookie, 32, okm, okm + 32, authData); authData += 32; // clientCookie_i + } + } } - } } diff --git a/libi2pd/LeaseSet.h b/libi2pd/LeaseSet.h index 94a19b1b..f5197eb5 100644 --- a/libi2pd/LeaseSet.h +++ b/libi2pd/LeaseSet.h @@ -1,14 +1,25 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef LEASE_SET_H__ #define LEASE_SET_H__ #include #include #include +#include #include #include #include "Identity.h" #include "Timestamp.h" #include "I2PEndian.h" +#include "Blinding.h" +#include "CryptoKey.h" namespace i2p { @@ -47,13 +58,17 @@ namespace data }; }; - typedef std::function LeaseInspectFunc; - - const size_t MAX_LS_BUFFER_SIZE = 3072; + typedef std::function LeaseInspectFunc; +#if OPENSSL_PQ + const size_t MAX_LS_BUFFER_SIZE = 8192; +#else + const size_t MAX_LS_BUFFER_SIZE = 4096; +#endif const size_t LEASE_SIZE = 44; // 32 + 4 + 8 - const size_t LEASE2_SIZE = 40; // 32 + 4 + 4 + const size_t LEASE2_SIZE = 40; // 32 + 4 + 4 const uint8_t MAX_NUM_LEASES = 16; - + const uint64_t LEASESET_EXPIRATION_TIME_THRESHOLD = 12*60*1000; // in milliseconds + const uint8_t NETDB_STORE_TYPE_LEASESET = 1; class LeaseSet: public RoutingDestination { @@ -62,14 +77,14 @@ namespace data LeaseSet (const uint8_t * buf, size_t len, bool storeLeases = true); virtual ~LeaseSet () { delete[] m_EncryptionKey; delete[] m_Buffer; }; virtual void Update (const uint8_t * buf, size_t len, bool verifySignature = true); - bool IsNewer (const uint8_t * buf, size_t len) const; + virtual bool IsNewer (const uint8_t * buf, size_t len) const; void PopulateLeases (); // from buffer const uint8_t * GetBuffer () const { return m_Buffer; }; size_t GetBufferLen () const { return m_BufferLen; }; bool IsValid () const { return m_IsValid; }; const std::vector > GetNonExpiredLeases (bool withThreshold = true) const; - const std::vector > GetNonExpiredLeasesExcluding (LeaseInspectFunc exclude, bool withThreshold = true) const; + const std::vector > GetNonExpiredLeasesExcluding (LeaseInspectFunc exclude, bool withThreshold = true) const; bool HasExpiredLeases () const; bool IsExpired () const; bool IsEmpty () const { return m_Leases.empty (); }; @@ -78,15 +93,18 @@ namespace data bool operator== (const LeaseSet& other) const { return m_BufferLen == other.m_BufferLen && !memcmp (m_Buffer, other.m_Buffer, m_BufferLen); }; virtual uint8_t GetStoreType () const { return NETDB_STORE_TYPE_LEASESET; }; - virtual uint8_t GetOrigStoreType () const { return NETDB_STORE_TYPE_LEASESET; }; virtual uint32_t GetPublishedTimestamp () const { return 0; }; // should be set for LeaseSet2 only - virtual std::shared_ptr GetTransientVerifier () const { return nullptr; }; + virtual std::shared_ptr GetTransientVerifier () const { return nullptr; }; + virtual bool IsPublishedEncrypted () const { return false; }; // implements RoutingDestination std::shared_ptr GetIdentity () const { return m_Identity; }; - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const; + void Encrypt (const uint8_t * data, uint8_t * encrypted) const; bool IsDestination () const { return true; }; + // used in webconsole + void ExpireLease () { m_ExpirationTime = i2p::util::GetSecondsSinceEpoch (); }; + protected: void UpdateLeasesBegin (); @@ -96,6 +114,7 @@ namespace data // called from LeaseSet2 LeaseSet (bool storeLeases); void SetBuffer (const uint8_t * buf, size_t len); + void SetBufferLen (size_t len); void SetIdentity (std::shared_ptr identity) { m_Identity = identity; }; void SetExpirationTime (uint64_t t) { m_ExpirationTime = t; }; void SetIsValid (bool isValid) { m_IsValid = isValid; }; @@ -104,7 +123,7 @@ namespace data private: void ReadFromBuffer (bool readIdentity = true, bool verifySignature = true); - virtual uint64_t ExtractTimestamp (const uint8_t * buf, size_t len) const; // returns max expiration time + virtual uint64_t ExtractExpirationTimestamp (const uint8_t * buf, size_t len) const; // returns max expiration time private: @@ -118,8 +137,8 @@ namespace data }; /** - validate lease set buffer signature and extract expiration timestamp - @returns true if the leaseset is well formed and signature is valid + * validate lease set buffer signature and extract expiration timestamp + * @returns true if the leaseset is well formed and signature is valid */ bool LeaseSetBufferValidate(const uint8_t * ptr, size_t sz, uint64_t & expires); @@ -128,73 +147,53 @@ namespace data const uint8_t NETDB_STORE_TYPE_META_LEASESET2 = 7; const uint16_t LEASESET2_FLAG_OFFLINE_KEYS = 0x0001; + const uint16_t LEASESET2_FLAG_UNPUBLISHED_LEASESET = 0x0002; + const uint16_t LEASESET2_FLAG_PUBLISHED_ENCRYPTED = 0x0004; - class BlindedPublicKey // for encrypted LS2 - { - public: - - BlindedPublicKey (std::shared_ptr identity, SigningKeyType blindedKeyType = i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519); - BlindedPublicKey (const std::string& b33); // from b33 without .b32.i2p - std::string ToB33 () const; - - const uint8_t * GetPublicKey () const { return m_PublicKey.data (); }; - size_t GetPublicKeyLen () const { return m_PublicKey.size (); }; - SigningKeyType GetSigType () const { return m_SigType; }; - SigningKeyType GetBlindedSigType () const { return m_BlindedSigType; }; - - void GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const; // 32 bytes - void GetBlindedKey (const char * date, uint8_t * blindedKey) const; // blinded key 32 bytes, date is 8 chars "YYYYMMDD" - void BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const; // blinded key 32 bytes, date is 8 chars "YYYYMMDD" - i2p::data::IdentHash GetStoreHash (const char * date = nullptr) const; // date is 8 chars "YYYYMMDD", use current if null - - private: - - void GetCredential (uint8_t * credential) const; // 32 bytes - void GenerateAlpha (const char * date, uint8_t * seed) const; // 64 bytes, date is 8 chars "YYYYMMDD" - void H (const std::string& p, const std::vector >& bufs, uint8_t * hash) const; - - private: - - std::vector m_PublicKey; - i2p::data::SigningKeyType m_SigType, m_BlindedSigType; - }; - class LeaseSet2: public LeaseSet { public: - LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases = true); - LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr key); // store type 5, called from local netdb only + LeaseSet2 (uint8_t storeType): LeaseSet (true), m_StoreType (storeType) {}; // for update + LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases = true, CryptoKeyType preferredCrypto = CRYPTO_KEY_TYPE_ECIES_X25519_AEAD); + LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr key, const uint8_t * secret = nullptr, CryptoKeyType preferredCrypto = CRYPTO_KEY_TYPE_ECIES_X25519_AEAD); // store type 5, called from local netdb only uint8_t GetStoreType () const { return m_StoreType; }; - uint8_t GetOrigStoreType () const { return m_OrigStoreType; }; uint32_t GetPublishedTimestamp () const { return m_PublishedTimestamp; }; + bool IsPublic () const { return m_IsPublic; }; + bool IsPublishedEncrypted () const { return m_IsPublishedEncrypted; }; std::shared_ptr GetTransientVerifier () const { return m_TransientVerifier; }; void Update (const uint8_t * buf, size_t len, bool verifySignature); + bool IsNewer (const uint8_t * buf, size_t len) const; // implements RoutingDestination - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const; + void Encrypt (const uint8_t * data, uint8_t * encrypted) const; + CryptoKeyType GetEncryptionType () const { return m_EncryptionType; }; private: void ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity = true, bool verifySignature = true); - void ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr key); + void ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr key, const uint8_t * secret); size_t ReadStandardLS2TypeSpecificPart (const uint8_t * buf, size_t len); size_t ReadMetaLS2TypeSpecificPart (const uint8_t * buf, size_t len); template bool VerifySignature (Verifier& verifier, const uint8_t * buf, size_t len, size_t signatureOffset); - uint64_t ExtractTimestamp (const uint8_t * buf, size_t len) const; + uint64_t ExtractExpirationTimestamp (const uint8_t * buf, size_t len) const; + uint64_t ExtractPublishedTimestamp (const uint8_t * buf, size_t len, uint64_t& expiration) const; + size_t ExtractClientAuthData (const uint8_t * buf, size_t len, const uint8_t * secret, const uint8_t * subcredential, uint8_t * authCookie) const; // subcredential is subcredential + timestamp, return length of autData without flag private: - uint8_t m_StoreType, m_OrigStoreType; - uint32_t m_PublishedTimestamp = 0; + uint8_t m_StoreType; + uint32_t m_PublishedTimestamp = 0; // seconds + bool m_IsPublic = true, m_IsPublishedEncrypted = false; std::shared_ptr m_TransientVerifier; + CryptoKeyType m_EncryptionType; std::shared_ptr m_Encryptor; // for standardLS2 }; - // also called from Streaming.cpp + // also called from Streaming.cpp template std::shared_ptr ProcessOfflineSignature (const Verifier& verifier, const uint8_t * buf, size_t len, size_t& offset) { @@ -210,7 +209,7 @@ namespace data transientVerifier->SetPublicKey (buf + offset); offset += keyLen; if (offset + verifier->GetSignatureLen () >= len) return nullptr; if (!verifier->Verify (signedData, keyLen + 6, buf + offset)) return nullptr; - offset += verifier->GetSignatureLen (); + offset += verifier->GetSignatureLen (); return transientVerifier; } @@ -253,13 +252,18 @@ namespace data { public: - LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, - uint16_t keyType, uint16_t keyLen, const uint8_t * encryptionPublicKey, - std::vector > tunnels); - LocalLeaseSet2 (uint8_t storeType, std::shared_ptr identity, const uint8_t * buf, size_t len); // from I2CP - + typedef std::list > EncryptionKeys; + + LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, + const EncryptionKeys& encryptionKeys, + const std::vector >& tunnels, + bool isPublic, uint64_t publishedTimestamp, + bool isPublishedEncrypted = false); + + LocalLeaseSet2 (uint8_t storeType, std::shared_ptr identity, const uint8_t * buf, size_t len); // from I2CP + virtual ~LocalLeaseSet2 () { delete[] m_Buffer; }; - + uint8_t * GetBuffer () const { return m_Buffer + 1; }; size_t GetBufferLen () const { return m_BufferLen; }; @@ -275,17 +279,28 @@ namespace data size_t m_BufferLen; }; + + const int ENCRYPTED_LEASESET_AUTH_TYPE_NONE = 0; + const int ENCRYPTED_LEASESET_AUTH_TYPE_DH = 1; + const int ENCRYPTED_LEASESET_AUTH_TYPE_PSK = 2; + + typedef i2p::data::Tag<32> AuthPublicKey; + class LocalEncryptedLeaseSet2: public LocalLeaseSet2 { public: - LocalEncryptedLeaseSet2 (std::shared_ptr ls, const i2p::data::PrivateKeys& keys, i2p::data::SigningKeyType blindedKeyType = i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519); + LocalEncryptedLeaseSet2 (std::shared_ptr ls, const i2p::data::PrivateKeys& keys, int authType = ENCRYPTED_LEASESET_AUTH_TYPE_NONE, std::shared_ptr > authKeys = nullptr); LocalEncryptedLeaseSet2 (std::shared_ptr identity, const uint8_t * buf, size_t len); // from I2CP const IdentHash& GetStoreHash () const { return m_StoreHash; }; std::shared_ptr GetInnerLeaseSet () const { return m_InnerLeaseSet; }; + private: + + void CreateClientAuthData (const uint8_t * subcredential, int authType, std::shared_ptr > authKeys, const uint8_t * authCookie, uint8_t * authData) const; + private: IdentHash m_StoreHash; diff --git a/libi2pd/LittleBigEndian.h b/libi2pd/LittleBigEndian.h index 69f10ee9..8c081187 100644 --- a/libi2pd/LittleBigEndian.h +++ b/libi2pd/LittleBigEndian.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + // LittleBigEndian.h fixed for 64-bits added union // @@ -29,35 +37,35 @@ struct BigEndian; template struct LittleEndian { - union - { - unsigned char bytes[sizeof(T)]; - T raw_value; - }; + union + { + unsigned char bytes[sizeof(T)]; + T raw_value; + }; - LittleEndian(T t = T()) - { - operator =(t); - } + LittleEndian(T t = T()) + { + operator =(t); + } - LittleEndian(const LittleEndian & t) - { - raw_value = t.raw_value; - } + LittleEndian(const LittleEndian & t) + { + raw_value = t.raw_value; + } - LittleEndian(const BigEndian & t) - { - for (unsigned i = 0; i < sizeof(T); i++) - bytes[i] = t.bytes[sizeof(T)-1-i]; - } + LittleEndian(const BigEndian & t) + { + for (unsigned i = 0; i < sizeof(T); i++) + bytes[i] = t.bytes[sizeof(T)-1-i]; + } - operator const T() const - { - T t = T(); - for (unsigned i = 0; i < sizeof(T); i++) - t |= T(bytes[i]) << (i << 3); - return t; - } + operator const T() const + { + T t = T(); + for (unsigned i = 0; i < sizeof(T); i++) + t |= T(bytes[i]) << (i << 3); + return t; + } const T operator = (const T t) { @@ -66,68 +74,68 @@ struct LittleEndian return t; } - // operators + // operators - const T operator += (const T t) - { - return (*this = *this + t); - } + const T operator += (const T t) + { + return (*this = *this + t); + } - const T operator -= (const T t) - { - return (*this = *this - t); - } + const T operator -= (const T t) + { + return (*this = *this - t); + } - const T operator *= (const T t) - { - return (*this = *this * t); - } + const T operator *= (const T t) + { + return (*this = *this * t); + } - const T operator /= (const T t) - { - return (*this = *this / t); - } + const T operator /= (const T t) + { + return (*this = *this / t); + } - const T operator %= (const T t) - { - return (*this = *this % t); - } + const T operator %= (const T t) + { + return (*this = *this % t); + } - LittleEndian operator ++ (int) - { - LittleEndian tmp(*this); - operator ++ (); - return tmp; - } + LittleEndian operator ++ (int) + { + LittleEndian tmp(*this); + operator ++ (); + return tmp; + } - LittleEndian & operator ++ () - { - for (unsigned i = 0; i < sizeof(T); i++) - { - ++bytes[i]; - if (bytes[i] != 0) - break; - } - return (*this); - } + LittleEndian & operator ++ () + { + for (unsigned i = 0; i < sizeof(T); i++) + { + ++bytes[i]; + if (bytes[i] != 0) + break; + } + return (*this); + } - LittleEndian operator -- (int) - { - LittleEndian tmp(*this); - operator -- (); - return tmp; - } + LittleEndian operator -- (int) + { + LittleEndian tmp(*this); + operator -- (); + return tmp; + } - LittleEndian & operator -- () - { - for (unsigned i = 0; i < sizeof(T); i++) - { - --bytes[i]; - if (bytes[i] != (T)(-1)) - break; - } - return (*this); - } + LittleEndian & operator -- () + { + for (unsigned i = 0; i < sizeof(T); i++) + { + --bytes[i]; + if (bytes[i] != (T)(-1)) + break; + } + return (*this); + } }; #pragma pack(pop) @@ -137,105 +145,105 @@ struct LittleEndian template struct BigEndian { - union - { - unsigned char bytes[sizeof(T)]; - T raw_value; - }; + union + { + unsigned char bytes[sizeof(T)]; + T raw_value; + }; - BigEndian(T t = T()) - { - operator =(t); - } + BigEndian(T t = T()) + { + operator =(t); + } - BigEndian(const BigEndian & t) - { - raw_value = t.raw_value; - } + BigEndian(const BigEndian & t) + { + raw_value = t.raw_value; + } - BigEndian(const LittleEndian & t) - { - for (unsigned i = 0; i < sizeof(T); i++) - bytes[i] = t.bytes[sizeof(T)-1-i]; - } + BigEndian(const LittleEndian & t) + { + for (unsigned i = 0; i < sizeof(T); i++) + bytes[i] = t.bytes[sizeof(T)-1-i]; + } - operator const T() const - { - T t = T(); - for (unsigned i = 0; i < sizeof(T); i++) - t |= T(bytes[sizeof(T) - 1 - i]) << (i << 3); - return t; - } + operator const T() const + { + T t = T(); + for (unsigned i = 0; i < sizeof(T); i++) + t |= T(bytes[sizeof(T) - 1 - i]) << (i << 3); + return t; + } - const T operator = (const T t) - { - for (unsigned i = 0; i < sizeof(T); i++) - bytes[sizeof(T) - 1 - i] = t >> (i << 3); - return t; - } + const T operator = (const T t) + { + for (unsigned i = 0; i < sizeof(T); i++) + bytes[sizeof(T) - 1 - i] = t >> (i << 3); + return t; + } - // operators + // operators - const T operator += (const T t) - { - return (*this = *this + t); - } + const T operator += (const T t) + { + return (*this = *this + t); + } - const T operator -= (const T t) - { - return (*this = *this - t); - } + const T operator -= (const T t) + { + return (*this = *this - t); + } - const T operator *= (const T t) - { - return (*this = *this * t); - } + const T operator *= (const T t) + { + return (*this = *this * t); + } - const T operator /= (const T t) - { - return (*this = *this / t); - } + const T operator /= (const T t) + { + return (*this = *this / t); + } - const T operator %= (const T t) - { - return (*this = *this % t); - } + const T operator %= (const T t) + { + return (*this = *this % t); + } - BigEndian operator ++ (int) - { - BigEndian tmp(*this); - operator ++ (); - return tmp; - } + BigEndian operator ++ (int) + { + BigEndian tmp(*this); + operator ++ (); + return tmp; + } - BigEndian & operator ++ () - { - for (unsigned i = 0; i < sizeof(T); i++) - { - ++bytes[sizeof(T) - 1 - i]; - if (bytes[sizeof(T) - 1 - i] != 0) - break; - } - return (*this); - } + BigEndian & operator ++ () + { + for (unsigned i = 0; i < sizeof(T); i++) + { + ++bytes[sizeof(T) - 1 - i]; + if (bytes[sizeof(T) - 1 - i] != 0) + break; + } + return (*this); + } - BigEndian operator -- (int) - { - BigEndian tmp(*this); - operator -- (); - return tmp; - } + BigEndian operator -- (int) + { + BigEndian tmp(*this); + operator -- (); + return tmp; + } - BigEndian & operator -- () - { - for (unsigned i = 0; i < sizeof(T); i++) - { - --bytes[sizeof(T) - 1 - i]; - if (bytes[sizeof(T) - 1 - i] != (T)(-1)) - break; - } - return (*this); - } + BigEndian & operator -- () + { + for (unsigned i = 0; i < sizeof(T); i++) + { + --bytes[sizeof(T) - 1 - i]; + if (bytes[sizeof(T) - 1 - i] != (T)(-1)) + break; + } + return (*this); + } }; #pragma pack(pop) diff --git a/libi2pd/Log.cpp b/libi2pd/Log.cpp index 79b4a511..76e85d4a 100644 --- a/libi2pd/Log.cpp +++ b/libi2pd/Log.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2016, The PurpleI2P Project +* Copyright (c) 2013-2022, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -7,6 +7,7 @@ */ #include "Log.h" +#include "util.h" //for std::transform #include @@ -17,13 +18,14 @@ namespace log { /** * @brief Maps our loglevel to their symbolic name */ - static const char * g_LogLevelStr[eNumLogLevels] = + static const char *g_LogLevelStr[eNumLogLevels] = { - "none", // eLogNone - "error", // eLogError - "warn", // eLogWarn - "info", // eLogInfo - "debug" // eLogDebug + "none", // eLogNone + "critical", // eLogCritical + "error", // eLogError + "warn", // eLogWarning + "info", // eLogInfo + "debug" // eLogDebug }; /** @@ -31,27 +33,29 @@ namespace log { * @note Using ISO 6429 (ANSI) color sequences */ #ifdef _WIN32 - static const char *LogMsgColors[] = { "", "", "", "", "", "" }; + static const char *LogMsgColors[] = { "", "", "", "", "", "", "" }; #else /* UNIX */ static const char *LogMsgColors[] = { - [eLogNone] = "\033[0m", /* reset */ - [eLogError] = "\033[1;31m", /* red */ - [eLogWarning] = "\033[1;33m", /* yellow */ - [eLogInfo] = "\033[1;36m", /* cyan */ - [eLogDebug] = "\033[1;34m", /* blue */ - [eNumLogLevels] = "\033[0m", /* reset */ + "\033[1;32m", /* none: green */ + "\033[1;41m", /* critical: red background */ + "\033[1;31m", /* error: red */ + "\033[1;33m", /* warning: yellow */ + "\033[1;36m", /* info: cyan */ + "\033[1;34m", /* debug: blue */ + "\033[0m" /* reset */ }; #endif #ifndef _WIN32 /** - * @brief Maps our log levels to syslog one + * @brief Maps our log levels to syslog one * @return syslog priority LOG_*, as defined in syslog.h */ static inline int GetSyslogPrio (enum LogLevel l) { int priority = LOG_DEBUG; switch (l) { case eLogNone : priority = LOG_CRIT; break; + case eLogCritical: priority = LOG_CRIT; break; case eLogError : priority = LOG_ERR; break; case eLogWarning : priority = LOG_WARNING; break; case eLogInfo : priority = LOG_INFO; break; @@ -110,28 +114,29 @@ namespace log { } } - std::string str_tolower(std::string s) { - std::transform(s.begin(), s.end(), s.begin(), - // static_cast(std::tolower) // wrong - // [](int c){ return std::tolower(c); } // wrong - // [](char c){ return std::tolower(c); } // wrong - [](unsigned char c){ return std::tolower(c); } // correct - ); - return s; - } + std::string str_tolower(std::string s) { + std::transform(s.begin(), s.end(), s.begin(), + // static_cast(std::tolower) // wrong + // [](int c){ return std::tolower(c); } // wrong + // [](char c){ return std::tolower(c); } // wrong + [](unsigned char c){ return std::tolower(c); } // correct + ); + return s; + } - void Log::SetLogLevel (const std::string& level_) { - std::string level=str_tolower(level_); - if (level == "none") { m_MinLevel = eLogNone; } - else if (level == "error") { m_MinLevel = eLogError; } - else if (level == "warn") { m_MinLevel = eLogWarning; } - else if (level == "info") { m_MinLevel = eLogInfo; } - else if (level == "debug") { m_MinLevel = eLogDebug; } + void Log::SetLogLevel (const std::string& level_) { + std::string level=str_tolower(level_); + if (level == "none") { m_MinLevel = eLogNone; } + else if (level == "critical") { m_MinLevel = eLogCritical; } + else if (level == "error") { m_MinLevel = eLogError; } + else if (level == "warn") { m_MinLevel = eLogWarning; } + else if (level == "info") { m_MinLevel = eLogInfo; } + else if (level == "debug") { m_MinLevel = eLogDebug; } else { - LogPrint(eLogError, "Log: unknown loglevel: ", level); + LogPrint(eLogCritical, "Log: Unknown loglevel: ", level); return; } - LogPrint(eLogInfo, "Log: min messages level set to ", level); + LogPrint(eLogInfo, "Log: Logging level set to ", level); } const char * Log::TimeAsString(std::time_t t) { @@ -169,7 +174,7 @@ namespace log { break; case eLogStdout: default: - std::cout << TimeAsString(msg->timestamp) + std::cout << TimeAsString(msg->timestamp) << "@" << short_tid << "/" << LogMsgColors[msg->level] << g_LogLevelStr[msg->level] << LogMsgColors[eNumLogLevels] << " - " << msg->text << std::endl; @@ -179,6 +184,8 @@ namespace log { void Log::Run () { + i2p::util::SetThreadName("Logging"); + Reopen (); while (m_IsRunning) { @@ -199,7 +206,6 @@ namespace log { void Log::SendTo (const std::string& path) { if (m_LogStream) m_LogStream = nullptr; // close previous - if (m_MinLevel == eLogNone) return; auto flags = std::ofstream::out | std::ofstream::app; auto os = std::make_shared (path, flags); if (os->is_open ()) @@ -210,7 +216,7 @@ namespace log { m_LogStream = os; return; } - LogPrint(eLogError, "Log: can't open file ", path); + LogPrint(eLogCritical, "Log: Can't open file ", path); } void Log::SendTo (std::shared_ptr os) { @@ -237,5 +243,11 @@ namespace log { Log & Logger() { return logger; } + + static ThrowFunction g_ThrowFunction; + ThrowFunction GetThrowFunction () { return g_ThrowFunction; } + void SetThrowFunction (ThrowFunction f) { g_ThrowFunction = f; } + } // log } // i2p + diff --git a/libi2pd/Log.h b/libi2pd/Log.h index b11c6763..18592c9e 100644 --- a/libi2pd/Log.h +++ b/libi2pd/Log.h @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2016, The PurpleI2P Project +* Copyright (c) 2013-2024, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -17,6 +17,7 @@ #include #include #include +#include #include "Queue.h" #ifndef _WIN32 @@ -26,6 +27,7 @@ enum LogLevel { eLogNone = 0, + eLogCritical, eLogError, eLogWarning, eLogInfo, @@ -51,7 +53,7 @@ namespace log { { private: - enum LogType m_Destination; + enum LogType m_Destination; enum LogLevel m_MinLevel; std::shared_ptr m_LogStream; std::string m_Logfile; @@ -74,7 +76,7 @@ namespace log { /** * @brief Makes formatted string from unix timestamp - * @param ts Second since epoch + * @param ts Second since epoch * * This function internally caches the result for last provided value */ @@ -85,52 +87,52 @@ namespace log { Log (); ~Log (); - LogType GetLogType () { return m_Destination; }; - LogLevel GetLogLevel () { return m_MinLevel; }; + LogType GetLogType () const { return m_Destination; }; + LogLevel GetLogLevel () const { return m_MinLevel; }; void Start (); void Stop (); /** - * @brief Sets minimal allowed level for log messages - * @param level String with wanted minimal msg level + * @brief Sets minimal allowed level for log messages + * @param level String with wanted minimal msg level */ - void SetLogLevel (const std::string& level); + void SetLogLevel (const std::string& level); /** * @brief Sets log destination to logfile - * @param path Path to logfile + * @param path Path to logfile */ void SendTo (const std::string &path); /** * @brief Sets log destination to given output stream - * @param os Output stream + * @param os Output stream */ void SendTo (std::shared_ptr os); /** - * @brief Sets format for timestamps in log - * @param format String with timestamp format + * @brief Sets format for timestamps in log + * @param format String with timestamp format */ void SetTimeFormat (std::string format) { m_TimeFormat = format; }; #ifndef _WIN32 /** * @brief Sets log destination to syslog - * @param name Wanted program name + * @param name Wanted program name * @param facility Wanted log category */ void SendTo (const char *name, int facility); #endif /** - * @brief Format log message and write to output stream/syslog - * @param msg Pointer to processed message + * @brief Format log message and write to output stream/syslog + * @param msg Pointer to processed message */ void Append(std::shared_ptr &); - /** @brief Reopen log file */ + /** @brief Reopen log file */ void Reopen(); }; @@ -143,16 +145,25 @@ namespace log { */ struct LogMsg { std::time_t timestamp; - std::string text; /**< message text as single string */ - LogLevel level; /**< message level */ + std::string text; /**< message text as single string */ + LogLevel level; /**< message level */ std::thread::id tid; /**< id of thread that generated message */ - LogMsg (LogLevel lvl, std::time_t ts, const std::string & txt): timestamp(ts), text(txt), level(lvl) {}; + LogMsg (LogLevel lvl, std::time_t ts, std::string&& txt): timestamp(ts), text(std::move(txt)), level(lvl) {} }; Log & Logger(); + + typedef std::function ThrowFunction; + ThrowFunction GetThrowFunction (); + void SetThrowFunction (ThrowFunction f); } // log -} +} // i2p + +inline bool CheckLogLevel (LogLevel level) noexcept +{ + return level <= i2p::log::Logger().GetLogLevel (); +} /** internal usage only -- folding args array to single string */ template @@ -161,14 +172,6 @@ void LogPrint (std::stringstream& s, TValue&& arg) noexcept s << std::forward(arg); } -/** internal usage only -- folding args array to single string */ -template -void LogPrint (std::stringstream& s, TValue&& arg, TArgs&&... args) noexcept -{ - LogPrint (s, std::forward(arg)); - LogPrint (s, std::forward(args)...); -} - /** * @brief Create log message and send it to queue * @param level Message level (eLogError, eLogInfo, ...) @@ -177,18 +180,29 @@ void LogPrint (std::stringstream& s, TValue&& arg, TArgs&&... args) noexcept template void LogPrint (LogLevel level, TArgs&&... args) noexcept { - i2p::log::Log &log = i2p::log::Logger(); - if (level > log.GetLogLevel ()) - return; + if (!CheckLogLevel (level)) return; // fold message to single string - std::stringstream ss(""); - - LogPrint (ss, std::forward(args)...); - - auto msg = std::make_shared(level, std::time(nullptr), ss.str()); + std::stringstream ss; + (LogPrint (ss, std::forward(args)), ...); + auto msg = std::make_shared(level, std::time(nullptr), std::move(ss).str()); msg->tid = std::this_thread::get_id(); - log.Append(msg); + i2p::log::Logger().Append(msg); +} + +/** + * @brief Throw fatal error message with the list of arguments + * @param args Array of message parts + */ +template +void ThrowFatal (TArgs&&... args) noexcept +{ + auto f = i2p::log::GetThrowFunction (); + if (!f) return; + // fold message to single string + std::stringstream ss(""); + (LogPrint (ss, std::forward(args)), ...); + f (ss.str ()); } #endif // LOG_H__ diff --git a/libi2pd/NTCP2.cpp b/libi2pd/NTCP2.cpp index 0976720e..b3a51488 100644 --- a/libi2pd/NTCP2.cpp +++ b/libi2pd/NTCP2.cpp @@ -1,12 +1,10 @@ /* -* Copyright (c) 2013-2018, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * * See full license text in LICENSE file at top of project tree * -* Kovri go write your own code -* */ #include @@ -21,234 +19,225 @@ #include "RouterContext.h" #include "Transports.h" #include "NetDb.hpp" +#include "HTTP.h" +#include "util.h" +#include "Socks5.h" #include "NTCP2.h" +#if defined(__linux__) && !defined(_NETINET_IN_H) + #include +#endif + namespace i2p { namespace transport { NTCP2Establisher::NTCP2Establisher (): - m_SessionRequestBuffer (nullptr), m_SessionCreatedBuffer (nullptr), m_SessionConfirmedBuffer (nullptr) - { + m_SessionConfirmedBuffer (nullptr) + { } - NTCP2Establisher::~NTCP2Establisher () - { - delete[] m_SessionRequestBuffer; - delete[] m_SessionCreatedBuffer; + NTCP2Establisher::~NTCP2Establisher () + { delete[] m_SessionConfirmedBuffer; } - void NTCP2Establisher::MixKey (const uint8_t * inputKeyMaterial) + bool NTCP2Establisher::KeyDerivationFunction1 (const uint8_t * pub, i2p::crypto::X25519Keys& priv, const uint8_t * rs, const uint8_t * epub) { - // temp_key = HMAC-SHA256(ck, input_key_material) - uint8_t tempKey[32]; unsigned int len; - HMAC(EVP_sha256(), m_CK, 32, inputKeyMaterial, 32, tempKey, &len); - // ck = HMAC-SHA256(temp_key, byte(0x01)) - static uint8_t one[1] = { 1 }; - HMAC(EVP_sha256(), tempKey, 32, one, 1, m_CK, &len); - // derived = HMAC-SHA256(temp_key, ck || byte(0x02)) - m_CK[32] = 2; - HMAC(EVP_sha256(), tempKey, 32, m_CK, 33, m_K, &len); - } - - void NTCP2Establisher::MixHash (const uint8_t * buf, size_t len) - { - SHA256_CTX ctx; - SHA256_Init (&ctx); - SHA256_Update (&ctx, m_H, 32); - SHA256_Update (&ctx, buf, len); - SHA256_Final (m_H, &ctx); - } - - void NTCP2Establisher::KeyDerivationFunction1 (const uint8_t * pub, i2p::crypto::X25519Keys& priv, const uint8_t * rs, const uint8_t * epub) - { - static const uint8_t protocolNameHash[] = - { - 0x72, 0xe8, 0x42, 0xc5, 0x45, 0xe1, 0x80, 0x80, 0xd3, 0x9c, 0x44, 0x93, 0xbb, 0x91, 0xd7, 0xed, - 0xf2, 0x28, 0x98, 0x17, 0x71, 0x21, 0x8c, 0x1f, 0x62, 0x4e, 0x20, 0x6f, 0x28, 0xd3, 0x2f, 0x71 - }; // SHA256 ("Noise_XKaesobfse+hs2+hs3_25519_ChaChaPoly_SHA256") - static const uint8_t hh[32] = - { - 0x49, 0xff, 0x48, 0x3f, 0xc4, 0x04, 0xb9, 0xb2, 0x6b, 0x11, 0x94, 0x36, 0x72, 0xff, 0x05, 0xb5, - 0x61, 0x27, 0x03, 0x31, 0xba, 0x89, 0xb8, 0xfc, 0x33, 0x15, 0x93, 0x87, 0x57, 0xdd, 0x3d, 0x1e - }; // SHA256 (protocolNameHash) - memcpy (m_CK, protocolNameHash, 32); - // h = SHA256(hh || rs) - SHA256_CTX ctx; - SHA256_Init (&ctx); - SHA256_Update (&ctx, hh, 32); - SHA256_Update (&ctx, rs, 32); - SHA256_Final (m_H, &ctx); + i2p::crypto::InitNoiseXKState (*this, rs); // h = SHA256(h || epub) MixHash (epub, 32); // x25519 between pub and priv uint8_t inputKeyMaterial[32]; - priv.Agree (pub, inputKeyMaterial); + if (!priv.Agree (pub, inputKeyMaterial)) return false; MixKey (inputKeyMaterial); + return true; } - void NTCP2Establisher::KDF1Alice () + bool NTCP2Establisher::KDF1Alice () { - KeyDerivationFunction1 (m_RemoteStaticKey, m_EphemeralKeys, m_RemoteStaticKey, GetPub ()); + return KeyDerivationFunction1 (m_RemoteStaticKey, *m_EphemeralKeys, m_RemoteStaticKey, GetPub ()); } - - void NTCP2Establisher::KDF1Bob () + + bool NTCP2Establisher::KDF1Bob () { - KeyDerivationFunction1 (GetRemotePub (), i2p::context.GetStaticKeys (), i2p::context.GetNTCP2StaticPublicKey (), GetRemotePub ()); + return KeyDerivationFunction1 (GetRemotePub (), i2p::context.GetNTCP2StaticKeys (), i2p::context.GetNTCP2StaticPublicKey (), GetRemotePub ()); } - void NTCP2Establisher::KeyDerivationFunction2 (const uint8_t * sessionRequest, size_t sessionRequestLen, const uint8_t * epub) - { - MixHash (sessionRequest + 32, 32); // encrypted payload + bool NTCP2Establisher::KeyDerivationFunction2 (const uint8_t * sessionRequest, size_t sessionRequestLen, const uint8_t * epub) + { + MixHash (sessionRequest + 32, 32); // encrypted payload - int paddingLength = sessionRequestLen - 64; + int paddingLength = sessionRequestLen - 64; if (paddingLength > 0) MixHash (sessionRequest + 64, paddingLength); - MixHash (epub, 32); + MixHash (epub, 32); // x25519 between remote pub and ephemaral priv uint8_t inputKeyMaterial[32]; - m_EphemeralKeys.Agree (GetRemotePub (), inputKeyMaterial); - + if (!m_EphemeralKeys->Agree (GetRemotePub (), inputKeyMaterial)) return false; MixKey (inputKeyMaterial); + return true; } - void NTCP2Establisher::KDF2Alice () + bool NTCP2Establisher::KDF2Alice () { - KeyDerivationFunction2 (m_SessionRequestBuffer, m_SessionRequestBufferLen, GetRemotePub ()); - } - - void NTCP2Establisher::KDF2Bob () - { - KeyDerivationFunction2 (m_SessionRequestBuffer, m_SessionRequestBufferLen, GetPub ()); + return KeyDerivationFunction2 (m_SessionRequestBuffer, m_SessionRequestBufferLen, GetRemotePub ()); } - void NTCP2Establisher::KDF3Alice () + bool NTCP2Establisher::KDF2Bob () + { + return KeyDerivationFunction2 (m_SessionRequestBuffer, m_SessionRequestBufferLen, GetPub ()); + } + + bool NTCP2Establisher::KDF3Alice () { uint8_t inputKeyMaterial[32]; - i2p::context.GetStaticKeys ().Agree (GetRemotePub (), inputKeyMaterial); + if (!i2p::context.GetNTCP2StaticKeys ().Agree (GetRemotePub (), inputKeyMaterial)) return false; MixKey (inputKeyMaterial); + return true; } - void NTCP2Establisher::KDF3Bob () + bool NTCP2Establisher::KDF3Bob () { uint8_t inputKeyMaterial[32]; - m_EphemeralKeys.Agree (m_RemoteStaticKey, inputKeyMaterial); + if (!m_EphemeralKeys->Agree (m_RemoteStaticKey, inputKeyMaterial)) return false; MixKey (inputKeyMaterial); + return true; } void NTCP2Establisher::CreateEphemeralKey () { - m_EphemeralKeys.GenerateKeys (); + m_EphemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); } - void NTCP2Establisher::CreateSessionRequestMessage () + bool NTCP2Establisher::CreateSessionRequestMessage (std::mt19937& rng) { // create buffer and fill padding - auto paddingLength = rand () % (287 - 64); // message length doesn't exceed 287 bytes + auto paddingLength = rng () % (NTCP2_SESSION_REQUEST_MAX_SIZE - 64); // message length doesn't exceed 287 bytes m_SessionRequestBufferLen = paddingLength + 64; - m_SessionRequestBuffer = new uint8_t[m_SessionRequestBufferLen]; RAND_bytes (m_SessionRequestBuffer + 64, paddingLength); // encrypt X i2p::crypto::CBCEncryption encryption; encryption.SetKey (m_RemoteIdentHash); - encryption.SetIV (m_IV); - encryption.Encrypt (GetPub (), 32, m_SessionRequestBuffer); // X - encryption.GetIV (m_IV); // save IV for SessionCreated + encryption.Encrypt (GetPub (), 32, m_IV, m_SessionRequestBuffer); // X + memcpy (m_IV, m_SessionRequestBuffer + 16, 16); // save last block as IV for SessionCreated // encryption key for next block - KDF1Alice (); + if (!KDF1Alice ()) return false; // fill options uint8_t options[32]; // actual options size is 16 bytes memset (options, 0, 16); - options[1] = 2; // ver + options[0] = i2p::context.GetNetID (); // network ID + options[1] = 2; // ver htobe16buf (options + 2, paddingLength); // padLen - // m3p2Len - auto bufLen = i2p::context.GetRouterInfo ().GetBufferLen (); - m3p2Len = bufLen + 4 + 16; // (RI header + RI + MAC for now) TODO: implement options - htobe16buf (options + 4, m3p2Len); - // fill m3p2 payload (RouterInfo block) + // m3p2Len + auto riBuffer = i2p::context.CopyRouterInfoBuffer (); + auto bufLen = riBuffer->GetBufferLen (); + m3p2Len = bufLen + 4 + 16; // (RI header + RI + MAC for now) TODO: implement options + htobe16buf (options + 4, m3p2Len); + // fill m3p2 payload (RouterInfo block) m_SessionConfirmedBuffer = new uint8_t[m3p2Len + 48]; // m3p1 is 48 bytes uint8_t * m3p2 = m_SessionConfirmedBuffer + 48; m3p2[0] = eNTCP2BlkRouterInfo; // block htobe16buf (m3p2 + 1, bufLen + 1); // flag + RI - m3p2[3] = 0; // flag - memcpy (m3p2 + 4, i2p::context.GetRouterInfo ().GetBuffer (), bufLen); // TODO: own RI should be protected by mutex + m3p2[3] = 0; // flag + memcpy (m3p2 + 4, riBuffer->data (), bufLen); // TODO: eliminate extra copy // 2 bytes reserved - htobe32buf (options + 8, i2p::util::GetSecondsSinceEpoch ()); // tsA + htobe32buf (options + 8, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); // tsA, rounded to seconds // 4 bytes reserved - // sign and encrypt options, use m_H as AD - uint8_t nonce[12]; - memset (nonce, 0, 12); // set nonce to zero - i2p::crypto::AEADChaCha20Poly1305 (options, 16, m_H, 32, m_K, nonce, m_SessionRequestBuffer + 32, 32, true); // encrypt + // encrypt options + if (!Encrypt (options, m_SessionRequestBuffer + 32, 16)) + { + LogPrint (eLogWarning, "NTCP2: SessionRequest failed to encrypt options"); + return false; + } + return true; } - void NTCP2Establisher::CreateSessionCreatedMessage () + bool NTCP2Establisher::CreateSessionCreatedMessage (std::mt19937& rng) { - auto paddingLen = rand () % (287 - 64); + auto paddingLen = rng () % (NTCP2_SESSION_CREATED_MAX_SIZE - 64); m_SessionCreatedBufferLen = paddingLen + 64; - m_SessionCreatedBuffer = new uint8_t[m_SessionCreatedBufferLen]; RAND_bytes (m_SessionCreatedBuffer + 64, paddingLen); // encrypt Y i2p::crypto::CBCEncryption encryption; encryption.SetKey (i2p::context.GetIdentHash ()); - encryption.SetIV (m_IV); - encryption.Encrypt (GetPub (), 32, m_SessionCreatedBuffer); // Y + encryption.Encrypt (GetPub (), 32, m_IV, m_SessionCreatedBuffer); // Y // encryption key for next block (m_K) - KDF2Bob (); + if (!KDF2Bob ()) return false; uint8_t options[16]; memset (options, 0, 16); htobe16buf (options + 2, paddingLen); // padLen - htobe32buf (options + 8, i2p::util::GetSecondsSinceEpoch ()); // tsB - // sign and encrypt options, use m_H as AD - uint8_t nonce[12]; - memset (nonce, 0, 12); // set nonce to zero - i2p::crypto::AEADChaCha20Poly1305 (options, 16, m_H, 32, m_K, nonce, m_SessionCreatedBuffer + 32, 32, true); // encrypt - + htobe32buf (options + 8, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); // tsB, rounded to seconds + // encrypt options + if (!Encrypt (options, m_SessionCreatedBuffer + 32, 16)) + { + LogPrint (eLogWarning, "NTCP2: SessionCreated failed to encrypt options"); + return false; + } + return true; } - void NTCP2Establisher::CreateSessionConfirmedMessagePart1 (const uint8_t * nonce) + bool NTCP2Establisher::CreateSessionConfirmedMessagePart1 () { // update AD MixHash (m_SessionCreatedBuffer + 32, 32); // encrypted payload int paddingLength = m_SessionCreatedBufferLen - 64; if (paddingLength > 0) - MixHash (m_SessionCreatedBuffer + 64, paddingLength); + MixHash (m_SessionCreatedBuffer + 64, paddingLength); - // part1 48 bytes - i2p::crypto::AEADChaCha20Poly1305 (i2p::context.GetNTCP2StaticPublicKey (), 32, m_H, 32, m_K, nonce, m_SessionConfirmedBuffer, 48, true); // encrypt + // part1 48 bytes, n = 1 + if (!Encrypt (i2p::context.GetNTCP2StaticPublicKey (), m_SessionConfirmedBuffer, 32)) + { + LogPrint (eLogWarning, "NTCP2: SessionConfirmed failed to encrypt part1"); + return false; + } + return true; } - void NTCP2Establisher::CreateSessionConfirmedMessagePart2 (const uint8_t * nonce) + bool NTCP2Establisher::CreateSessionConfirmedMessagePart2 () { // part 2 // update AD again - MixHash (m_SessionConfirmedBuffer, 48); + MixHash (m_SessionConfirmedBuffer, 48); // encrypt m3p2, it must be filled in SessionRequest - KDF3Alice (); + if (!KDF3Alice ()) return false; // MixKey, n = 0 uint8_t * m3p2 = m_SessionConfirmedBuffer + 48; - i2p::crypto::AEADChaCha20Poly1305 (m3p2, m3p2Len - 16, m_H, 32, m_K, nonce, m3p2, m3p2Len, true); // encrypt + if (!Encrypt (m3p2, m3p2, m3p2Len - 16)) + { + LogPrint (eLogWarning, "NTCP2: SessionConfirmed failed to encrypt part2"); + return false; + } // update h again MixHash (m3p2, m3p2Len); //h = SHA256(h || ciphertext) - } + return true; + } - bool NTCP2Establisher::ProcessSessionRequestMessage (uint16_t& paddingLen) + bool NTCP2Establisher::ProcessSessionRequestMessage (uint16_t& paddingLen, bool& clockSkew) { + clockSkew = false; // decrypt X i2p::crypto::CBCDecryption decryption; decryption.SetKey (i2p::context.GetIdentHash ()); - decryption.SetIV (i2p::context.GetNTCP2IV ()); - decryption.Decrypt (m_SessionRequestBuffer, 32, GetRemotePub ()); - decryption.GetIV (m_IV); // save IV for SessionCreated + decryption.Decrypt (m_SessionRequestBuffer, 32, i2p::context.GetNTCP2IV (), GetRemotePub ()); + memcpy (m_IV, m_SessionRequestBuffer + 16, 16); // save last block as IV for SessionCreated // decryption key for next block - KDF1Bob (); - // verify MAC and decrypt options block (32 bytes), use m_H as AD - uint8_t nonce[12], options[16]; - memset (nonce, 0, 12); // set nonce to zero - if (i2p::crypto::AEADChaCha20Poly1305 (m_SessionRequestBuffer + 32, 16, m_H, 32, m_K, nonce, options, 16, false)) // decrypt + if (!KDF1Bob ()) + { + LogPrint (eLogWarning, "NTCP2: SessionRequest KDF failed"); + return false; + } + // verify MAC and decrypt options block (32 bytes) + uint8_t options[16]; + if (Decrypt (m_SessionRequestBuffer + 32, options, 16)) { // options - if (options[1] == 2) // ver is always 2 + if (options[0] && options[0] != i2p::context.GetNetID ()) + { + LogPrint (eLogWarning, "NTCP2: SessionRequest networkID ", (int)options[0], " mismatch. Expected ", i2p::context.GetNetID ()); + return false; + } + if (options[1] == 2) // ver is always 2 { paddingLen = bufbe16toh (options + 2); m_SessionRequestBufferLen = paddingLen + 64; @@ -256,15 +245,16 @@ namespace transport if (m3p2Len < 16) { LogPrint (eLogWarning, "NTCP2: SessionRequest m3p2len=", m3p2Len, " is too short"); - return false; - } + return false; + } // check timestamp auto ts = i2p::util::GetSecondsSinceEpoch (); - uint32_t tsA = bufbe32toh (options + 8); + uint32_t tsA = bufbe32toh (options + 8); if (tsA < ts - NTCP2_CLOCK_SKEW || tsA > ts + NTCP2_CLOCK_SKEW) { LogPrint (eLogWarning, "NTCP2: SessionRequest time difference ", (int)(ts - tsA), " exceeds clock skew"); - return false; + clockSkew = true; + // we send SessionCreate to let Alice know our time and then close session } } else @@ -277,8 +267,8 @@ namespace transport { LogPrint (eLogWarning, "NTCP2: SessionRequest AEAD verification failed "); return false; - } - return true; + } + return true; } bool NTCP2Establisher::ProcessSessionCreatedMessage (uint16_t& paddingLen) @@ -287,21 +277,22 @@ namespace transport // decrypt Y i2p::crypto::CBCDecryption decryption; decryption.SetKey (m_RemoteIdentHash); - decryption.SetIV (m_IV); - decryption.Decrypt (m_SessionCreatedBuffer, 32, GetRemotePub ()); + decryption.Decrypt (m_SessionCreatedBuffer, 32, m_IV, GetRemotePub ()); // decryption key for next block (m_K) - KDF2Alice (); + if (!KDF2Alice ()) + { + LogPrint (eLogWarning, "NTCP2: SessionCreated KDF failed"); + return false; + } // decrypt and verify MAC uint8_t payload[16]; - uint8_t nonce[12]; - memset (nonce, 0, 12); // set nonce to zero - if (i2p::crypto::AEADChaCha20Poly1305 (m_SessionCreatedBuffer + 32, 16, m_H, 32, m_K, nonce, payload, 16, false)) // decrypt + if (Decrypt (m_SessionCreatedBuffer + 32, payload, 16)) { - // options + // options paddingLen = bufbe16toh(payload + 2); // check timestamp auto ts = i2p::util::GetSecondsSinceEpoch (); - uint32_t tsB = bufbe32toh (payload + 8); + uint32_t tsB = bufbe32toh (payload + 8); if (tsB < ts - NTCP2_CLOCK_SKEW || tsB > ts + NTCP2_CLOCK_SKEW) { LogPrint (eLogWarning, "NTCP2: SessionCreated time difference ", (int)(ts - tsB), " exceeds clock skew"); @@ -309,22 +300,23 @@ namespace transport } } else - { + { LogPrint (eLogWarning, "NTCP2: SessionCreated AEAD verification failed "); return false; - } + } return true; } - bool NTCP2Establisher::ProcessSessionConfirmedMessagePart1 (const uint8_t * nonce) + bool NTCP2Establisher::ProcessSessionConfirmedMessagePart1 () { // update AD MixHash (m_SessionCreatedBuffer + 32, 32); // encrypted payload int paddingLength = m_SessionCreatedBufferLen - 64; if (paddingLength > 0) MixHash (m_SessionCreatedBuffer + 64, paddingLength); - - if (!i2p::crypto::AEADChaCha20Poly1305 (m_SessionConfirmedBuffer, 32, m_H, 32, m_K, nonce, m_RemoteStaticKey, 32, false)) // decrypt S + + // decrypt S, n = 1 + if (!Decrypt (m_SessionConfirmedBuffer, m_RemoteStaticKey, 32)) { LogPrint (eLogWarning, "NTCP2: SessionConfirmed Part1 AEAD verification failed "); return false; @@ -332,18 +324,19 @@ namespace transport return true; } - bool NTCP2Establisher::ProcessSessionConfirmedMessagePart2 (const uint8_t * nonce, uint8_t * m3p2Buf) + bool NTCP2Establisher::ProcessSessionConfirmedMessagePart2 (uint8_t * m3p2Buf) { // update AD again - MixHash (m_SessionConfirmedBuffer, 48); + MixHash (m_SessionConfirmedBuffer, 48); - KDF3Bob (); - if (i2p::crypto::AEADChaCha20Poly1305 (m_SessionConfirmedBuffer + 48, m3p2Len - 16, m_H, 32, m_K, nonce, m3p2Buf, m3p2Len - 16, false)) // decrypt + if (!KDF3Bob ()) // MixKey, n = 0 { - // caclulate new h again for KDF data - memcpy (m_SessionConfirmedBuffer + 16, m_H, 32); // h || ciphertext - SHA256 (m_SessionConfirmedBuffer + 16, m3p2Len + 32, m_H); //h = SHA256(h || ciphertext); - } + LogPrint (eLogWarning, "NTCP2: SessionConfirmed Part2 KDF failed"); + return false; + } + if (Decrypt (m_SessionConfirmedBuffer + 48, m3p2Buf, m3p2Len - 16)) + // calculate new h again for KDF data + MixHash (m_SessionConfirmedBuffer + 48, m3p2Len); // h = SHA256(h || ciphertext) else { LogPrint (eLogWarning, "NTCP2: SessionConfirmed Part2 AEAD verification failed "); @@ -352,30 +345,36 @@ namespace transport return true; } - NTCP2Session::NTCP2Session (NTCP2Server& server, std::shared_ptr in_RemoteRouter): - TransportSession (in_RemoteRouter, NTCP2_ESTABLISH_TIMEOUT), - m_Server (server), m_Socket (m_Server.GetService ()), + NTCP2Session::NTCP2Session (NTCP2Server& server, std::shared_ptr in_RemoteRouter, + std::shared_ptr addr): + TransportSession (in_RemoteRouter, NTCP2_ESTABLISH_TIMEOUT), + m_Server (server), m_Socket (m_Server.GetService ()), m_IsEstablished (false), m_IsTerminated (false), m_Establisher (new NTCP2Establisher), - m_SendSipKey (nullptr), m_ReceiveSipKey (nullptr), + m_SendKey (nullptr), m_ReceiveKey (nullptr), #if OPENSSL_SIPHASH m_SendMDCtx(nullptr), m_ReceiveMDCtx (nullptr), +#else + m_SendSipKey (nullptr), m_ReceiveSipKey (nullptr), #endif m_NextReceivedLen (0), m_NextReceivedBuffer (nullptr), m_NextSendBuffer (nullptr), - m_ReceiveSequenceNumber (0), m_SendSequenceNumber (0), m_IsSending (false) + m_NextReceivedBufferSize (0), m_ReceiveSequenceNumber (0), m_SendSequenceNumber (0), + m_IsSending (false), m_IsReceiving (false), m_NextPaddingSize (16) { if (in_RemoteRouter) // Alice { m_Establisher->m_RemoteIdentHash = GetRemoteIdentity ()->GetIdentHash (); - auto addr = in_RemoteRouter->GetNTCP2Address (true); // we need a published address if (addr) { - memcpy (m_Establisher->m_RemoteStaticKey, addr->ntcp2->staticKey, 32); - memcpy (m_Establisher->m_IV, addr->ntcp2->iv, 16); + memcpy (m_Establisher->m_RemoteStaticKey, addr->s, 32); + memcpy (m_Establisher->m_IV, addr->i, 16); + m_RemoteEndpoint = boost::asio::ip::tcp::endpoint (addr->host, addr->port); } else - LogPrint (eLogWarning, "NTCP2: Missing NTCP2 parameters"); + LogPrint (eLogWarning, "NTCP2: Missing NTCP2 address"); } + m_NextRouterInfoResendTime = i2p::util::GetSecondsSinceEpoch () + NTCP2_ROUTERINFO_RESEND_INTERVAL + + m_Server.GetRng ()() % NTCP2_ROUTERINFO_RESEND_INTERVAL_THRESHOLD; } NTCP2Session::~NTCP2Session () @@ -383,8 +382,6 @@ namespace transport delete[] m_NextReceivedBuffer; delete[] m_NextSendBuffer; #if OPENSSL_SIPHASH - if (m_SendSipKey) EVP_PKEY_free (m_SendSipKey); - if (m_ReceiveSipKey) EVP_PKEY_free (m_ReceiveSipKey); if (m_SendMDCtx) EVP_MD_CTX_destroy (m_SendMDCtx); if (m_ReceiveMDCtx) EVP_MD_CTX_destroy (m_ReceiveMDCtx); #endif @@ -396,14 +393,37 @@ namespace transport { m_IsTerminated = true; m_IsEstablished = false; + boost::system::error_code ec; + m_Socket.shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec); + if (ec) + LogPrint (eLogDebug, "NTCP2: Couldn't shutdown socket: ", ec.message ()); m_Socket.close (); transports.PeerDisconnected (shared_from_this ()); m_Server.RemoveNTCP2Session (shared_from_this ()); + if (!m_IntermediateQueue.empty ()) + m_SendQueue.splice (m_SendQueue.end (), m_IntermediateQueue); + for (auto& it: m_SendQueue) + it->Drop (); m_SendQueue.clear (); - LogPrint (eLogDebug, "NTCP2: session terminated"); + SetSendQueueSize (0); + auto remoteIdentity = GetRemoteIdentity (); + if (remoteIdentity) + { + LogPrint (eLogDebug, "NTCP2: Session with ", GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (remoteIdentity->GetIdentHash ()), ") terminated"); + } + else + { + LogPrint (eLogDebug, "NTCP2: Session with ", GetRemoteEndpoint (), " terminated"); + } } } + void NTCP2Session::Close () + { + m_Socket.close (); + } + void NTCP2Session::TerminateByTimeout () { SendTerminationAndTerminate (eNTCP2IdleTimeout); @@ -411,65 +431,88 @@ namespace transport void NTCP2Session::Done () { - m_Server.GetService ().post (std::bind (&NTCP2Session::Terminate, shared_from_this ())); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); } void NTCP2Session::Established () { m_IsEstablished = true; m_Establisher.reset (nullptr); - SetTerminationTimeout (NTCP2_TERMINATION_TIMEOUT); + SetTerminationTimeout (NTCP2_TERMINATION_TIMEOUT + m_Server.GetRng ()() % NTCP2_TERMINATION_TIMEOUT_VARIANCE); + SendQueue (); transports.PeerConnected (shared_from_this ()); } void NTCP2Session::CreateNonce (uint64_t seqn, uint8_t * nonce) { - memset (nonce, 0, 4); - htole64buf (nonce + 4, seqn); + memset (nonce, 0, 4); + htole64buf (nonce + 4, seqn); } + void NTCP2Session::CreateNextReceivedBuffer (size_t size) + { + if (m_NextReceivedBuffer) + { + if (size <= m_NextReceivedBufferSize) + return; // buffer is good, do nothing + else + delete[] m_NextReceivedBuffer; + } + m_NextReceivedBuffer = new uint8_t[size]; + m_NextReceivedBufferSize = size; + } + + void NTCP2Session::DeleteNextReceiveBuffer (uint64_t ts) + { + if (m_NextReceivedBuffer && !m_IsReceiving && + ts > GetLastActivityTimestamp () + NTCP2_RECEIVE_BUFFER_DELETION_TIMEOUT) + { + delete[] m_NextReceivedBuffer; + m_NextReceivedBuffer = nullptr; + m_NextReceivedBufferSize = 0; + } + } void NTCP2Session::KeyDerivationFunctionDataPhase () { - uint8_t tempKey[32]; unsigned int len; - HMAC(EVP_sha256(), m_Establisher->GetCK (), 32, nullptr, 0, tempKey, &len); // temp_key = HMAC-SHA256(ck, zerolen) - static uint8_t one[1] = { 1 }; - HMAC(EVP_sha256(), tempKey, 32, one, 1, m_Kab, &len); // k_ab = HMAC-SHA256(temp_key, byte(0x01)). - m_Kab[32] = 2; - HMAC(EVP_sha256(), tempKey, 32, m_Kab, 33, m_Kba, &len); // k_ba = HMAC-SHA256(temp_key, k_ab || byte(0x02)) - static uint8_t ask[4] = { 'a', 's', 'k', 1 }, master[32]; - HMAC(EVP_sha256(), tempKey, 32, ask, 4, master, &len); // ask_master = HMAC-SHA256(temp_key, "ask" || byte(0x01)) + uint8_t k[64]; + i2p::crypto::HKDF (m_Establisher->GetCK (), nullptr, 0, "", k); // k_ab, k_ba = HKDF(ck, zerolen) + memcpy (m_Kab, k, 32); memcpy (m_Kba, k + 32, 32); + uint8_t master[32]; + i2p::crypto::HKDF (m_Establisher->GetCK (), nullptr, 0, "ask", master, 32); // ask_master = HKDF(ck, zerolen, info="ask") uint8_t h[39]; memcpy (h, m_Establisher->GetH (), 32); memcpy (h + 32, "siphash", 7); - HMAC(EVP_sha256(), master, 32, h, 39, tempKey, &len); // temp_key = HMAC-SHA256(ask_master, h || "siphash") - HMAC(EVP_sha256(), tempKey, 32, one, 1, master, &len); // sip_master = HMAC-SHA256(temp_key, byte(0x01)) - HMAC(EVP_sha256(), master, 32, nullptr, 0, tempKey, &len); // temp_key = HMAC-SHA256(sip_master, zerolen) - HMAC(EVP_sha256(), tempKey, 32, one, 1, m_Sipkeysab, &len); // sipkeys_ab = HMAC-SHA256(temp_key, byte(0x01)). - m_Sipkeysab[32] = 2; - HMAC(EVP_sha256(), tempKey, 32, m_Sipkeysab, 33, m_Sipkeysba, &len); // sipkeys_ba = HMAC-SHA256(temp_key, sipkeys_ab || byte(0x02)) + i2p::crypto::HKDF (master, h, 39, "", master, 32); // sip_master = HKDF(ask_master, h || "siphash") + i2p::crypto::HKDF (master, nullptr, 0, "", k); // sipkeys_ab, sipkeys_ba = HKDF(sip_master, zerolen) + memcpy (m_Sipkeysab, k, 32); memcpy (m_Sipkeysba, k + 32, 32); } void NTCP2Session::SendSessionRequest () { - m_Establisher->CreateSessionRequestMessage (); + if (!m_Establisher->CreateSessionRequestMessage (m_Server.GetRng ())) + { + LogPrint (eLogWarning, "NTCP2: Send SessionRequest KDF failed"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } // send message + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch (); boost::asio::async_write (m_Socket, boost::asio::buffer (m_Establisher->m_SessionRequestBuffer, m_Establisher->m_SessionRequestBufferLen), boost::asio::transfer_all (), - std::bind(&NTCP2Session::HandleSessionRequestSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); - } + std::bind(&NTCP2Session::HandleSessionRequestSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } void NTCP2Session::HandleSessionRequestSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) { (void) bytes_transferred; if (ecode) { - LogPrint (eLogWarning, "NTCP2: couldn't send SessionRequest message: ", ecode.message ()); + LogPrint (eLogWarning, "NTCP2: Couldn't send SessionRequest message: ", ecode.message ()); Terminate (); } else { - m_Establisher->m_SessionCreatedBuffer = new uint8_t[287]; // TODO: determine actual max size // we receive first 64 bytes (32 Y, and 32 ChaCha/Poly frame) first boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionCreatedBuffer, 64), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleSessionCreatedReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -478,7 +521,6 @@ namespace transport void NTCP2Session::HandleSessionRequestReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) { - (void) bytes_transferred; if (ecode) { LogPrint (eLogWarning, "NTCP2: SessionRequest read error: ", ecode.message ()); @@ -486,31 +528,47 @@ namespace transport } else { - LogPrint (eLogDebug, "NTCP2: SessionRequest received ", bytes_transferred); - uint16_t paddingLen = 0; - if (m_Establisher->ProcessSessionRequestMessage (paddingLen)) - { - if (paddingLen > 0) + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this (), bytes_transferred] () { - if (paddingLen <= 287 - 64) // session request is 287 bytes max - { - boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionRequestBuffer + 64, paddingLen), boost::asio::transfer_all (), - std::bind(&NTCP2Session::HandleSessionRequestPaddingReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); - } - else - { - LogPrint (eLogWarning, "NTCP2: SessionRequest padding length ", (int)paddingLen, " is too long"); - Terminate (); - } - } - else - SendSessionCreated (); - } - else - Terminate (); + s->ProcessSessionRequest (bytes_transferred);; + }); } } + void NTCP2Session::ProcessSessionRequest (size_t len) + { + LogPrint (eLogDebug, "NTCP2: SessionRequest received ", len); + uint16_t paddingLen = 0; + bool clockSkew = false; + if (m_Establisher->ProcessSessionRequestMessage (paddingLen, clockSkew)) + { + if (clockSkew) + { + // we don't care about padding, send SessionCreated and close session + SendSessionCreated (); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + else if (paddingLen > 0) + { + if (paddingLen <= NTCP2_SESSION_REQUEST_MAX_SIZE - 64) // session request is 287 bytes max + { + boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionRequestBuffer + 64, paddingLen), boost::asio::transfer_all (), + std::bind(&NTCP2Session::HandleSessionRequestPaddingReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } + else + { + LogPrint (eLogWarning, "NTCP2: SessionRequest padding length ", (int)paddingLen, " is too long"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + } + else + SendSessionCreated (); + } + else + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + void NTCP2Session::HandleSessionRequestPaddingReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) @@ -519,15 +577,27 @@ namespace transport Terminate (); } else - SendSessionCreated (); + { + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this ()] () + { + s->SendSessionCreated (); + }); + } } void NTCP2Session::SendSessionCreated () { - m_Establisher->CreateSessionCreatedMessage (); - // send message + if (!m_Establisher->CreateSessionCreatedMessage (m_Server.GetRng ())) + { + LogPrint (eLogWarning, "NTCP2: Send SessionCreated KDF failed"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } + // send message + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch (); boost::asio::async_write (m_Socket, boost::asio::buffer (m_Establisher->m_SessionCreatedBuffer, m_Establisher->m_SessionCreatedBufferLen), boost::asio::transfer_all (), - std::bind(&NTCP2Session::HandleSessionCreatedSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + std::bind(&NTCP2Session::HandleSessionCreatedSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } void NTCP2Session::HandleSessionCreatedReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) @@ -539,31 +609,45 @@ namespace transport } else { - LogPrint (eLogDebug, "NTCP2: SessionCreated received ", bytes_transferred); - uint16_t paddingLen = 0; - if (m_Establisher->ProcessSessionCreatedMessage (paddingLen)) - { - if (paddingLen > 0) + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch () - m_HandshakeInterval; + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this (), bytes_transferred] () { - if (paddingLen <= 287 - 64) // session created is 287 bytes max - { - boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionCreatedBuffer + 64, paddingLen), boost::asio::transfer_all (), - std::bind(&NTCP2Session::HandleSessionCreatedPaddingReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); - } - else - { - LogPrint (eLogWarning, "NTCP2: SessionCreated padding length ", (int)paddingLen, " is too long"); - Terminate (); - } - } - else - SendSessionConfirmed (); - } - else - Terminate (); + s->ProcessSessionCreated (bytes_transferred); + }); } } + void NTCP2Session::ProcessSessionCreated (size_t len) + { + LogPrint (eLogDebug, "NTCP2: SessionCreated received ", len); + uint16_t paddingLen = 0; + if (m_Establisher->ProcessSessionCreatedMessage (paddingLen)) + { + if (paddingLen > 0) + { + if (paddingLen <= NTCP2_SESSION_CREATED_MAX_SIZE - 64) // session created is 287 bytes max + { + boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionCreatedBuffer + 64, paddingLen), boost::asio::transfer_all (), + std::bind(&NTCP2Session::HandleSessionCreatedPaddingReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } + else + { + LogPrint (eLogWarning, "NTCP2: SessionCreated padding length ", (int)paddingLen, " is too long"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + } + else + SendSessionConfirmed (); + } + else + { + if (GetRemoteIdentity ()) + i2p::data::netdb.SetUnreachable (GetRemoteIdentity ()->GetIdentHash (), true); // assume wrong s key + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + } + void NTCP2Session::HandleSessionCreatedPaddingReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) @@ -574,17 +658,27 @@ namespace transport else { m_Establisher->m_SessionCreatedBufferLen += bytes_transferred; - SendSessionConfirmed (); + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this ()] () + { + s->SendSessionConfirmed (); + }); } } void NTCP2Session::SendSessionConfirmed () { - uint8_t nonce[12]; - CreateNonce (1, nonce); // set nonce to 1 - m_Establisher->CreateSessionConfirmedMessagePart1 (nonce); - memset (nonce, 0, 12); // set nonce back to 0 - m_Establisher->CreateSessionConfirmedMessagePart2 (nonce); + if (!m_Establisher->CreateSessionConfirmedMessagePart1 ()) + { + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } + if (!m_Establisher->CreateSessionConfirmedMessagePart2 ()) + { + LogPrint (eLogWarning, "NTCP2: Send SessionConfirmed Part2 KDF failed"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } // send message boost::asio::async_write (m_Socket, boost::asio::buffer (m_Establisher->m_SessionConfirmedBuffer, m_Establisher->m3p2Len + 48), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleSessionConfirmedSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -592,20 +686,29 @@ namespace transport void NTCP2Session::HandleSessionConfirmedSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) { - LogPrint (eLogDebug, "NTCP2: SessionConfirmed sent"); - KeyDerivationFunctionDataPhase (); - // Alice data phase keys - m_SendKey = m_Kab; - m_ReceiveKey = m_Kba; - SetSipKeys (m_Sipkeysab, m_Sipkeysba); - memcpy (m_ReceiveIV.buf, m_Sipkeysba + 16, 8); - memcpy (m_SendIV.buf, m_Sipkeysab + 16, 8); - Established (); - ReceiveLength (); + (void) bytes_transferred; + if (ecode) + { + LogPrint (eLogWarning, "NTCP2: Couldn't send SessionConfirmed message: ", ecode.message ()); + Terminate (); + } + else + { + LogPrint (eLogDebug, "NTCP2: SessionConfirmed sent"); + KeyDerivationFunctionDataPhase (); + // Alice data phase keys + m_SendKey = m_Kab; + m_ReceiveKey = m_Kba; + SetSipKeys (m_Sipkeysab, m_Sipkeysba); + memcpy (m_ReceiveIV.buf, m_Sipkeysba + 16, 8); + memcpy (m_SendIV.buf, m_Sipkeysab + 16, 8); + Established (); + ReceiveLength (); - // TODO: remove - // m_SendQueue.push_back (CreateDeliveryStatusMsg (1)); - // SendQueue (); + // TODO: remove + // m_SendQueue.push_back (CreateDeliveryStatusMsg (1)); + // SendQueue (); + } } void NTCP2Session::HandleSessionCreatedSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) @@ -613,13 +716,13 @@ namespace transport (void) bytes_transferred; if (ecode) { - LogPrint (eLogWarning, "NTCP2: couldn't send SessionCreated message: ", ecode.message ()); + LogPrint (eLogWarning, "NTCP2: Couldn't send SessionCreated message: ", ecode.message ()); Terminate (); } else { LogPrint (eLogDebug, "NTCP2: SessionCreated sent"); - m_Establisher->m_SessionConfirmedBuffer = new uint8_t[m_Establisher->m3p2Len + 48]; + m_Establisher->m_SessionConfirmedBuffer = new uint8_t[m_Establisher->m3p2Len + 48]; boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionConfirmedBuffer, m_Establisher->m3p2Len + 48), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleSessionConfirmedReceived , shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } @@ -627,6 +730,7 @@ namespace transport void NTCP2Session::HandleSessionConfirmedReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) { + (void) bytes_transferred; if (ecode) { LogPrint (eLogWarning, "NTCP2: SessionConfirmed read error: ", ecode.message ()); @@ -634,98 +738,166 @@ namespace transport } else { - LogPrint (eLogDebug, "NTCP2: SessionConfirmed received"); - // part 1 - uint8_t nonce[12]; - CreateNonce (1, nonce); - if (m_Establisher->ProcessSessionConfirmedMessagePart1 (nonce)) - { - // part 2 - std::vector buf(m_Establisher->m3p2Len - 16); // -MAC - memset (nonce, 0, 12); // set nonce to 0 again - if (m_Establisher->ProcessSessionConfirmedMessagePart2 (nonce, buf.data ())) + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch () - m_HandshakeInterval; + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this ()] () { - KeyDerivationFunctionDataPhase (); - // Bob data phase keys - m_SendKey = m_Kba; - m_ReceiveKey = m_Kab; - SetSipKeys (m_Sipkeysba, m_Sipkeysab); - memcpy (m_ReceiveIV.buf, m_Sipkeysab + 16, 8); - memcpy (m_SendIV.buf, m_Sipkeysba + 16, 8); - // payload - // process RI - if (buf[0] != eNTCP2BlkRouterInfo) - { - LogPrint (eLogWarning, "NTCP2: unexpected block ", (int)buf[0], " in SessionConfirmed"); - Terminate (); - return; - } - auto size = bufbe16toh (buf.data () + 1); - if (size > buf.size () - 3) - { - LogPrint (eLogError, "NTCP2: Unexpected RouterInfo size ", size, " in SessionConfirmed"); - Terminate (); - return; - } - // TODO: check flag - i2p::data::RouterInfo ri (buf.data () + 4, size - 1); // 1 byte block type + 2 bytes size + 1 byte flag - if (ri.IsUnreachable ()) - { - LogPrint (eLogError, "NTCP2: Signature verification failed in SessionConfirmed"); - SendTerminationAndTerminate (eNTCP2RouterInfoSignatureVerificationFail); - return; - } - if (i2p::util::GetMillisecondsSinceEpoch () > ri.GetTimestamp () + i2p::data::NETDB_MIN_EXPIRATION_TIMEOUT*1000LL) // 90 minutes - { - LogPrint (eLogError, "NTCP2: RouterInfo is too old in SessionConfirmed"); - SendTerminationAndTerminate (eNTCP2Message3Error); - return; - } - auto addr = ri.GetNTCP2Address (false); // any NTCP2 address - if (!addr) - { - LogPrint (eLogError, "NTCP2: No NTCP2 address found in SessionConfirmed"); - Terminate (); - return; - } - if (memcmp (addr->ntcp2->staticKey, m_Establisher->m_RemoteStaticKey, 32)) - { - LogPrint (eLogError, "NTCP2: Static key mismatch in SessionConfirmed"); - SendTerminationAndTerminate (eNTCP2IncorrectSParameter); - return; - } - i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, buf.data () + 3, size)); // TODO: should insert ri and not parse it twice - // TODO: process options - - // ready to communicate - auto existing = i2p::data::netdb.FindRouter (ri.GetRouterIdentity ()->GetIdentHash ()); // check if exists already - SetRemoteIdentity (existing ? existing->GetRouterIdentity () : ri.GetRouterIdentity ()); - m_Server.AddNTCP2Session (shared_from_this ()); - Established (); - ReceiveLength (); - } - else - Terminate (); - } - else - Terminate (); + s->ProcessSessionConfirmed ();; + }); } } + void NTCP2Session::ProcessSessionConfirmed () + { + // run on establisher thread + LogPrint (eLogDebug, "NTCP2: SessionConfirmed received"); + // part 1 + if (m_Establisher->ProcessSessionConfirmedMessagePart1 ()) + { + // part 2 + auto buf = std::make_shared > (m_Establisher->m3p2Len - 16); // -MAC + if (m_Establisher->ProcessSessionConfirmedMessagePart2 (buf->data ())) // TODO:handle in establisher thread + { + // payload + // RI block must be first + if ((*buf)[0] != eNTCP2BlkRouterInfo) + { + LogPrint (eLogWarning, "NTCP2: Unexpected block ", (int)(*buf)[0], " in SessionConfirmed"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } + auto size = bufbe16toh (buf->data () + 1); + if (size > buf->size () - 3 || size > i2p::data::MAX_RI_BUFFER_SIZE + 1) + { + LogPrint (eLogError, "NTCP2: Unexpected RouterInfo size ", size, " in SessionConfirmed"); + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + return; + } + boost::asio::post (m_Server.GetService (), + [s = shared_from_this (), buf, size] () + { + s->EstablishSessionAfterSessionConfirmed (buf, size); + }); + } + else + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + else + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); + } + + void NTCP2Session::EstablishSessionAfterSessionConfirmed (std::shared_ptr > buf, size_t size) + { + // run on main NTCP2 thread + KeyDerivationFunctionDataPhase (); + // Bob data phase keys + m_SendKey = m_Kba; + m_ReceiveKey = m_Kab; + SetSipKeys (m_Sipkeysba, m_Sipkeysab); + memcpy (m_ReceiveIV.buf, m_Sipkeysab + 16, 8); + memcpy (m_SendIV.buf, m_Sipkeysba + 16, 8); + // we need to set keys for SendTerminationAndTerminate + // TODO: check flag + i2p::data::RouterInfo ri (buf->data () + 4, size - 1); // 1 byte block type + 2 bytes size + 1 byte flag + if (ri.IsUnreachable ()) + { + LogPrint (eLogError, "NTCP2: RouterInfo verification failed in SessionConfirmed from ", GetRemoteEndpoint ()); + SendTerminationAndTerminate (eNTCP2RouterInfoSignatureVerificationFail); + return; + } + LogPrint(eLogDebug, "NTCP2: SessionConfirmed from ", GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (ri.GetIdentHash ()), ")"); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (ts > ri.GetTimestamp () + i2p::data::NETDB_MIN_EXPIRATION_TIMEOUT*1000LL) // 90 minutes + { + LogPrint (eLogError, "NTCP2: RouterInfo is too old in SessionConfirmed for ", (ts - ri.GetTimestamp ())/1000LL, " seconds"); + SendTerminationAndTerminate (eNTCP2Message3Error); + return; + } + if (ts + i2p::data::NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < ri.GetTimestamp ()) // 2 minutes + { + LogPrint (eLogError, "NTCP2: RouterInfo is from future for ", (ri.GetTimestamp () - ts)/1000LL, " seconds"); + SendTerminationAndTerminate (eNTCP2Message3Error); + return; + } + // update RouterInfo in netdb + auto ri1 = i2p::data::netdb.AddRouterInfo (ri.GetBuffer (), ri.GetBufferLen ()); // ri1 points to one from netdb now + if (!ri1) + { + LogPrint (eLogError, "NTCP2: Couldn't update RouterInfo from SessionConfirmed in netdb"); + Terminate (); + return; + } + + bool isOlder = false; + if (ri.GetTimestamp () + i2p::data::NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < ri1->GetTimestamp ()) + { + // received RouterInfo is older than one in netdb + isOlder = true; + if (ri1->HasProfile ()) + { + auto profile = i2p::data::GetRouterProfile (ri1->GetIdentHash ()); // retrieve profile + if (profile && profile->IsDuplicated ()) + { + SendTerminationAndTerminate (eNTCP2Banned); + return; + } + } + } + + auto addr = m_RemoteEndpoint.address ().is_v4 () ? ri1->GetNTCP2V4Address () : + (i2p::util::net::IsYggdrasilAddress (m_RemoteEndpoint.address ()) ? ri1->GetYggdrasilAddress () : ri1->GetNTCP2V6Address ()); + if (!addr || memcmp (m_Establisher->m_RemoteStaticKey, addr->s, 32)) + { + LogPrint (eLogError, "NTCP2: Wrong static key in SessionConfirmed"); + Terminate (); + return; + } + if (addr->IsPublishedNTCP2 () && m_RemoteEndpoint.address () != addr->host && + (!m_RemoteEndpoint.address ().is_v6 () || (i2p::util::net::IsYggdrasilAddress (m_RemoteEndpoint.address ()) ? + memcmp (m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data () + 1, addr->host.to_v6 ().to_bytes ().data () + 1, 7) : // from the same yggdrasil subnet + memcmp (m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data (), addr->host.to_v6 ().to_bytes ().data (), 8)))) // temporary address + { + if (isOlder) // older router? + i2p::data::UpdateRouterProfile (ri1->GetIdentHash (), + [](std::shared_ptr profile) + { + if (profile) profile->Duplicated (); // mark router as duplicated in profile + }); + else + LogPrint (eLogInfo, "NTCP2: Host mismatch between published address ", addr->host, " and actual endpoint ", m_RemoteEndpoint.address ()); + SendTerminationAndTerminate (eNTCP2Banned); + return; + } + // TODO: process options block + + // ready to communicate + SetRemoteIdentity (ri1->GetRouterIdentity ()); + if (m_Server.AddNTCP2Session (shared_from_this (), true)) + { + Established (); + ReceiveLength (); + } + else + Terminate (); + } + void NTCP2Session::SetSipKeys (const uint8_t * sendSipKey, const uint8_t * receiveSipKey) { #if OPENSSL_SIPHASH - m_SendSipKey = EVP_PKEY_new_raw_private_key (EVP_PKEY_SIPHASH, nullptr, sendSipKey, 16); - m_SendMDCtx = EVP_MD_CTX_create (); + EVP_PKEY * sipKey = EVP_PKEY_new_raw_private_key (EVP_PKEY_SIPHASH, nullptr, sendSipKey, 16); + m_SendMDCtx = EVP_MD_CTX_create (); EVP_PKEY_CTX *ctx = nullptr; - EVP_DigestSignInit (m_SendMDCtx, &ctx, nullptr, nullptr, m_SendSipKey); - EVP_PKEY_CTX_ctrl (ctx, -1, EVP_PKEY_OP_SIGNCTX, EVP_PKEY_CTRL_SET_DIGEST_SIZE, 8, nullptr); - - m_ReceiveSipKey = EVP_PKEY_new_raw_private_key (EVP_PKEY_SIPHASH, nullptr, receiveSipKey, 16); - m_ReceiveMDCtx = EVP_MD_CTX_create (); - ctx = nullptr; - EVP_DigestSignInit (m_ReceiveMDCtx, &ctx, NULL, NULL, m_ReceiveSipKey); + EVP_DigestSignInit (m_SendMDCtx, &ctx, nullptr, nullptr, sipKey); EVP_PKEY_CTX_ctrl (ctx, -1, EVP_PKEY_OP_SIGNCTX, EVP_PKEY_CTRL_SET_DIGEST_SIZE, 8, nullptr); + EVP_PKEY_free (sipKey); + + sipKey = EVP_PKEY_new_raw_private_key (EVP_PKEY_SIPHASH, nullptr, receiveSipKey, 16); + m_ReceiveMDCtx = EVP_MD_CTX_create (); + ctx = nullptr; + EVP_DigestSignInit (m_ReceiveMDCtx, &ctx, NULL, NULL, sipKey); + EVP_PKEY_CTX_ctrl (ctx, -1, EVP_PKEY_OP_SIGNCTX, EVP_PKEY_CTRL_SET_DIGEST_SIZE, 8, nullptr); + EVP_PKEY_free (sipKey); #else m_SendSipKey = sendSipKey; m_ReceiveSipKey = receiveSipKey; @@ -735,21 +907,30 @@ namespace transport void NTCP2Session::ClientLogin () { m_Establisher->CreateEphemeralKey (); - SendSessionRequest (); + boost::asio::post (m_Server.GetEstablisherService (), + [s = shared_from_this ()] () + { + s->SendSessionRequest (); + }); } void NTCP2Session::ServerLogin () { + SetTerminationTimeout (NTCP2_ESTABLISH_TIMEOUT); + SetLastActivityTimestamp (i2p::util::GetSecondsSinceEpoch ()); m_Establisher->CreateEphemeralKey (); - m_Establisher->m_SessionRequestBuffer = new uint8_t[287]; // 287 bytes max for now boost::asio::async_read (m_Socket, boost::asio::buffer(m_Establisher->m_SessionRequestBuffer, 64), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleSessionRequestReceived, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); + std::placeholders::_1, std::placeholders::_2)); } void NTCP2Session::ReceiveLength () { if (IsTerminated ()) return; +#ifdef __linux__ + const int one = 1; + setsockopt(m_Socket.native_handle(), IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one)); +#endif boost::asio::async_read (m_Socket, boost::asio::buffer(&m_NextReceivedLen, 2), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleReceivedLength, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } @@ -759,48 +940,57 @@ namespace transport if (ecode) { if (ecode != boost::asio::error::operation_aborted) - LogPrint (eLogWarning, "NTCP2: receive length read error: ", ecode.message ()); + LogPrint (eLogWarning, "NTCP2: Receive length read error: ", ecode.message ()); Terminate (); } else { #if OPENSSL_SIPHASH EVP_DigestSignInit (m_ReceiveMDCtx, nullptr, nullptr, nullptr, nullptr); - EVP_DigestSignUpdate (m_ReceiveMDCtx, m_ReceiveIV.buf, 8); - size_t l = 8; - EVP_DigestSignFinal (m_ReceiveMDCtx, m_ReceiveIV.buf, &l); + EVP_DigestSignUpdate (m_ReceiveMDCtx, m_ReceiveIV.buf, 8); + size_t l = 8; + EVP_DigestSignFinal (m_ReceiveMDCtx, m_ReceiveIV.buf, &l); #else i2p::crypto::Siphash<8> (m_ReceiveIV.buf, m_ReceiveIV.buf, 8, m_ReceiveSipKey); #endif // m_NextReceivedLen comes from the network in BigEndian m_NextReceivedLen = be16toh (m_NextReceivedLen) ^ le16toh (m_ReceiveIV.key); - LogPrint (eLogDebug, "NTCP2: received length ", m_NextReceivedLen); + LogPrint (eLogDebug, "NTCP2: Received length ", m_NextReceivedLen); if (m_NextReceivedLen >= 16) - { - if (m_NextReceivedBuffer) delete[] m_NextReceivedBuffer; - m_NextReceivedBuffer = new uint8_t[m_NextReceivedLen]; + { + CreateNextReceivedBuffer (m_NextReceivedLen); boost::system::error_code ec; size_t moreBytes = m_Socket.available(ec); - if (!ec && moreBytes >= m_NextReceivedLen) - { - // read and process message immediately if available - moreBytes = boost::asio::read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), ec); - HandleReceived (ec, moreBytes); - } + if (!ec) + { + if (moreBytes >= m_NextReceivedLen) + { + // read and process message immediately if available + moreBytes = boost::asio::read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), ec); + HandleReceived (ec, moreBytes); + } + else + Receive (); + } else - Receive (); + LogPrint (eLogWarning, "NTCP2: Socket error: ", ec.message ()); } else { - LogPrint (eLogError, "NTCP2: received length ", m_NextReceivedLen, " is too short"); + LogPrint (eLogError, "NTCP2: Received length ", m_NextReceivedLen, " is too short"); Terminate (); - } + } } } void NTCP2Session::Receive () { if (IsTerminated ()) return; +#ifdef __linux__ + const int one = 1; + setsockopt(m_Socket.native_handle(), IPPROTO_TCP, TCP_QUICKACK, &one, sizeof(one)); +#endif + m_IsReceiving = true; boost::asio::async_read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } @@ -809,29 +999,28 @@ namespace transport { if (ecode) { - if (ecode != boost::asio::error::operation_aborted) - LogPrint (eLogWarning, "NTCP2: receive read error: ", ecode.message ()); + if (ecode != boost::asio::error::operation_aborted) + LogPrint (eLogWarning, "NTCP2: Receive read error: ", ecode.message ()); Terminate (); } else { - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - m_NumReceivedBytes += bytes_transferred + 2; // + length - i2p::transport::transports.UpdateReceivedBytes (bytes_transferred); + UpdateNumReceivedBytes (bytes_transferred + 2); + i2p::transport::transports.UpdateReceivedBytes (bytes_transferred + 2); uint8_t nonce[12]; CreateNonce (m_ReceiveSequenceNumber, nonce); m_ReceiveSequenceNumber++; - if (i2p::crypto::AEADChaCha20Poly1305 (m_NextReceivedBuffer, m_NextReceivedLen-16, nullptr, 0, m_ReceiveKey, nonce, m_NextReceivedBuffer, m_NextReceivedLen, false)) - { - LogPrint (eLogDebug, "NTCP2: received message decrypted"); + if (m_Server.AEADChaCha20Poly1305Decrypt (m_NextReceivedBuffer, m_NextReceivedLen-16, nullptr, 0, m_ReceiveKey, nonce, m_NextReceivedBuffer, m_NextReceivedLen)) + { + LogPrint (eLogDebug, "NTCP2: Received message decrypted"); ProcessNextFrame (m_NextReceivedBuffer, m_NextReceivedLen-16); - delete[] m_NextReceivedBuffer; m_NextReceivedBuffer = nullptr; // we don't need received buffer anymore + m_IsReceiving = false; ReceiveLength (); } else { LogPrint (eLogWarning, "NTCP2: Received AEAD verification failed "); SendTerminationAndTerminate (eNTCP2DataPhaseAEADFailure); - } + } } } @@ -845,7 +1034,7 @@ namespace transport auto size = bufbe16toh (frame + offset); offset += 2; LogPrint (eLogDebug, "NTCP2: Block type ", (int)blk, " of size ", size); - if (size > len) + if (offset + size > len) { LogPrint (eLogError, "NTCP2: Unexpected block length ", size); break; @@ -853,15 +1042,39 @@ namespace transport switch (blk) { case eNTCP2BlkDateTime: - LogPrint (eLogDebug, "NTCP2: datetime"); - break; + { + LogPrint (eLogDebug, "NTCP2: Datetime"); + if (m_IsEstablished) + { + uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + uint64_t tsA = bufbe32toh (frame + offset); + if (tsA < ts - NTCP2_CLOCK_SKEW || tsA > ts + NTCP2_CLOCK_SKEW) + { + LogPrint (eLogWarning, "NTCP2: Established session time difference ", (int)(ts - tsA), " exceeds clock skew"); + SendTerminationAndTerminate (eNTCP2ClockSkew); + } + } + break; + } case eNTCP2BlkOptions: - LogPrint (eLogDebug, "NTCP2: options"); + LogPrint (eLogDebug, "NTCP2: Options"); break; case eNTCP2BlkRouterInfo: { - LogPrint (eLogDebug, "NTCP2: RouterInfo flag=", (int)frame[offset]); - i2p::data::netdb.PostI2NPMsg (CreateI2NPMessage (eI2NPDummyMsg, frame + offset, size)); + LogPrint (eLogDebug, "NTCP2: RouterInfo flag=", (int)frame[offset]); + if (size <= i2p::data::MAX_RI_BUFFER_SIZE + 1) + { + auto newRi = i2p::data::netdb.AddRouterInfo (frame + offset + 1, size - 1); + if (newRi) + { + auto remoteIdentity = GetRemoteIdentity (); + if (remoteIdentity && remoteIdentity->GetIdentHash () == newRi->GetIdentHash ()) + // peer's RouterInfo update + SetRemoteIdentity (newRi->GetIdentity ()); + } + } + else + LogPrint (eLogInfo, "NTCP2: RouterInfo block is too long ", size); break; } case eNTCP2BlkI2NPMessage: @@ -872,25 +1085,29 @@ namespace transport LogPrint (eLogError, "NTCP2: I2NP block is too long ", size); break; } - auto nextMsg = NewI2NPMessage (size); - nextMsg->Align (12); // for possible tunnel msg + auto nextMsg = (frame[offset] == eI2NPTunnelData) ? NewI2NPTunnelMessage (true) : NewI2NPMessage (size); nextMsg->len = nextMsg->offset + size + 7; // 7 more bytes for full I2NP header - memcpy (nextMsg->GetNTCP2Header (), frame + offset, size); - nextMsg->FromNTCP2 (); - m_Handler.PutNextMessage (nextMsg); + if (nextMsg->len <= nextMsg->maxLen) + { + memcpy (nextMsg->GetNTCP2Header (), frame + offset, size); + nextMsg->FromNTCP2 (); + m_Handler.PutNextMessage (std::move (nextMsg)); + } + else + LogPrint (eLogError, "NTCP2: I2NP block is too long for I2NP message"); break; } case eNTCP2BlkTermination: - if (size >= 9) + if (size >= 9) { - LogPrint (eLogDebug, "NTCP2: termination. reason=", (int)(frame[offset + 8])); + LogPrint (eLogDebug, "NTCP2: Termination. reason=", (int)(frame[offset + 8])); Terminate (); } else LogPrint (eLogWarning, "NTCP2: Unexpected termination block size ", size); break; case eNTCP2BlkPadding: - LogPrint (eLogDebug, "NTCP2: padding"); + LogPrint (eLogDebug, "NTCP2: Padding"); break; default: LogPrint (eLogWarning, "NTCP2: Unknown block type ", (int)blk); @@ -902,48 +1119,48 @@ namespace transport void NTCP2Session::SetNextSentFrameLength (size_t frameLen, uint8_t * lengthBuf) { - #if OPENSSL_SIPHASH +#if OPENSSL_SIPHASH EVP_DigestSignInit (m_SendMDCtx, nullptr, nullptr, nullptr, nullptr); - EVP_DigestSignUpdate (m_SendMDCtx, m_SendIV.buf, 8); - size_t l = 8; - EVP_DigestSignFinal (m_SendMDCtx, m_SendIV.buf, &l); + EVP_DigestSignUpdate (m_SendMDCtx, m_SendIV.buf, 8); + size_t l = 8; + EVP_DigestSignFinal (m_SendMDCtx, m_SendIV.buf, &l); #else i2p::crypto::Siphash<8> (m_SendIV.buf, m_SendIV.buf, 8, m_SendSipKey); #endif // length must be in BigEndian htobe16buf (lengthBuf, frameLen ^ le16toh (m_SendIV.key)); - LogPrint (eLogDebug, "NTCP2: sent length ", frameLen); - } + LogPrint (eLogDebug, "NTCP2: Sent length ", frameLen); + } void NTCP2Session::SendI2NPMsgs (std::vector >& msgs) { if (msgs.empty () || IsTerminated ()) return; - + size_t totalLen = 0; std::vector > encryptBufs; - std::vector bufs; + std::vector bufs; std::shared_ptr first; uint8_t * macBuf = nullptr; - for (auto& it: msgs) - { + for (auto& it: msgs) + { it->ToNTCP2 (); auto buf = it->GetNTCP2Header (); auto len = it->GetNTCP2Length (); // block header - buf -= 3; + buf -= 3; buf[0] = eNTCP2BlkI2NPMessage; // blk htobe16buf (buf + 1, len); // size - len += 3; - totalLen += len; + len += 3; + totalLen += len; encryptBufs.push_back ( {buf, len} ); if (&it == &msgs.front ()) // first message { // allocate two bytes for length buf -= 2; len += 2; first = it; - } + } if (&it == &msgs.back () && it->len + 16 < it->maxLen) // last message - { + { // if it's long enough we add padding and MAC to it // create padding block auto paddingLen = CreatePaddingBlock (totalLen, buf + len, it->maxLen - it->len - 16); @@ -956,8 +1173,8 @@ namespace transport macBuf = buf + len; // allocate 16 bytes for MAC len += 16; - } - + } + bufs.push_back (boost::asio::buffer (buf, len)); } @@ -965,46 +1182,57 @@ namespace transport { // allocate send buffer m_NextSendBuffer = new uint8_t[287]; // can be any size > 16, we just allocate 287 frequently - // crate padding block + // create padding block auto paddingLen = CreatePaddingBlock (totalLen, m_NextSendBuffer, 287 - 16); // and padding block to encrypt and send if (paddingLen) - encryptBufs.push_back ( {m_NextSendBuffer, paddingLen} ); + encryptBufs.push_back ( {m_NextSendBuffer, paddingLen} ); bufs.push_back (boost::asio::buffer (m_NextSendBuffer, paddingLen + 16)); macBuf = m_NextSendBuffer + paddingLen; - totalLen += paddingLen; + totalLen += paddingLen; } + if (totalLen > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) + { + LogPrint (eLogError, "NTCP2: Frame to send is too long ", totalLen); + return; + } uint8_t nonce[12]; CreateNonce (m_SendSequenceNumber, nonce); m_SendSequenceNumber++; - i2p::crypto::AEADChaCha20Poly1305Encrypt (encryptBufs, m_SendKey, nonce, macBuf); // encrypt buffers + m_Server.AEADChaCha20Poly1305Encrypt (encryptBufs, m_SendKey, nonce, macBuf); // encrypt buffers SetNextSentFrameLength (totalLen + 16, first->GetNTCP2Header () - 5); // frame length right before first block - + // send buffers - m_IsSending = true; + m_IsSending = true; boost::asio::async_write (m_Socket, bufs, boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleI2NPMsgsSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2, msgs)); - } + } void NTCP2Session::HandleI2NPMsgsSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, std::vector > msgs) { HandleNextFrameSent (ecode, bytes_transferred); // msgs get destroyed here } - + void NTCP2Session::EncryptAndSendNextBuffer (size_t payloadLen) { - if (IsTerminated ()) + if (IsTerminated ()) { delete[] m_NextSendBuffer; m_NextSendBuffer = nullptr; - return; + return; } + if (payloadLen > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) + { + LogPrint (eLogError, "NTCP2: Buffer to send is too long ", payloadLen); + delete[] m_NextSendBuffer; m_NextSendBuffer = nullptr; + return; + } // encrypt uint8_t nonce[12]; CreateNonce (m_SendSequenceNumber, nonce); m_SendSequenceNumber++; - i2p::crypto::AEADChaCha20Poly1305Encrypt ({ {m_NextSendBuffer + 2, payloadLen} }, m_SendKey, nonce, m_NextSendBuffer + payloadLen + 2); + m_Server.AEADChaCha20Poly1305Encrypt ({ {m_NextSendBuffer + 2, payloadLen} }, m_SendKey, nonce, m_NextSendBuffer + payloadLen + 2); SetNextSentFrameLength (payloadLen + 16, m_NextSendBuffer); // send - m_IsSending = true; + m_IsSending = true; boost::asio::async_write (m_Socket, boost::asio::buffer (m_NextSendBuffer, payloadLen + 16 + 2), boost::asio::transfer_all (), std::bind(&NTCP2Session::HandleNextFrameSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } @@ -1013,74 +1241,130 @@ namespace transport { m_IsSending = false; delete[] m_NextSendBuffer; m_NextSendBuffer = nullptr; - + if (ecode) { - LogPrint (eLogWarning, "NTCP2: Couldn't send frame ", ecode.message ()); - } + if (ecode != boost::asio::error::operation_aborted) + LogPrint (eLogWarning, "NTCP2: Couldn't send frame ", ecode.message ()); + Terminate (); + } else - { - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - m_NumSentBytes += bytes_transferred; + { + UpdateNumSentBytes (bytes_transferred); i2p::transport::transports.UpdateSentBytes (bytes_transferred); LogPrint (eLogDebug, "NTCP2: Next frame sent ", bytes_transferred); - SendQueue (); - } + if (GetLastActivityTimestamp () > m_NextRouterInfoResendTime) + { + m_NextRouterInfoResendTime += NTCP2_ROUTERINFO_RESEND_INTERVAL + + m_Server.GetRng ()() % NTCP2_ROUTERINFO_RESEND_INTERVAL_THRESHOLD; + SendRouterInfo (); + } + else + { + SendQueue (); + SetSendQueueSize (m_SendQueue.size ()); + } + } } - + void NTCP2Session::SendQueue () { - if (!m_SendQueue.empty ()) + if (!m_SendQueue.empty () && m_IsEstablished) { std::vector > msgs; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); size_t s = 0; while (!m_SendQueue.empty ()) { auto msg = m_SendQueue.front (); - size_t len = msg->GetNTCP2Length (); + if (!msg || msg->IsExpired (ts)) + { + // drop null or expired message + if (msg) msg->Drop (); + m_SendQueue.pop_front (); + continue; + } + size_t len = msg->GetNTCP2Length (); if (s + len + 3 <= NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) // 3 bytes block header { msgs.push_back (msg); s += (len + 3); m_SendQueue.pop_front (); + if (s >= NTCP2_SEND_AFTER_FRAME_SIZE) + break; // send frame right a way } else if (len + 3 > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) { LogPrint (eLogError, "NTCP2: I2NP message of size ", len, " can't be sent. Dropped"); + msg->Drop (); m_SendQueue.pop_front (); } else break; } SendI2NPMsgs (msgs); - } + } } + void NTCP2Session::MoveSendQueue (std::shared_ptr other) + { + if (!other || m_SendQueue.empty ()) return; + std::list > msgs; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + for (auto it: m_SendQueue) + if (!it->IsExpired (ts)) + msgs.push_back (it); + else + it->Drop (); + m_SendQueue.clear (); + if (!msgs.empty ()) + other->SendI2NPMessages (msgs); + } + size_t NTCP2Session::CreatePaddingBlock (size_t msgLen, uint8_t * buf, size_t len) { - if (len < 3) return 0; + if (len < 3) return 0; len -= 3; if (msgLen < 256) msgLen = 256; // for short message padding should not be always zero size_t paddingSize = (msgLen*NTCP2_MAX_PADDING_RATIO)/100; - if (msgLen + paddingSize + 3 > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) paddingSize = NTCP2_UNENCRYPTED_FRAME_MAX_SIZE - msgLen -3; + if (msgLen + paddingSize + 3 > NTCP2_UNENCRYPTED_FRAME_MAX_SIZE) + { + int l = (int)NTCP2_UNENCRYPTED_FRAME_MAX_SIZE - msgLen -3; + if (l <= 0) return 0; + paddingSize = l; + } if (paddingSize > len) paddingSize = len; - if (paddingSize) paddingSize = rand () % paddingSize; + if (paddingSize) + { + if (m_NextPaddingSize >= 16) + { + RAND_bytes ((uint8_t *)m_PaddingSizes, sizeof (m_PaddingSizes)); + m_NextPaddingSize = 0; + } + paddingSize = m_PaddingSizes[m_NextPaddingSize++] % (paddingSize + 1); + } buf[0] = eNTCP2BlkPadding; // blk htobe16buf (buf + 1, paddingSize); // size - memset (buf + 3, 0, paddingSize); + memset (buf + 3, 0, paddingSize); return paddingSize + 3; - } - + } + void NTCP2Session::SendRouterInfo () { if (!IsEstablished ()) return; - auto riLen = i2p::context.GetRouterInfo ().GetBufferLen (); - size_t payloadLen = riLen + 4; // 3 bytes block header + 1 byte RI flag + auto riBuffer = i2p::context.CopyRouterInfoBuffer (); + auto riLen = riBuffer->GetBufferLen (); + size_t payloadLen = riLen + 3 + 1 + 7; // 3 bytes block header + 1 byte RI flag + 7 bytes DateTime m_NextSendBuffer = new uint8_t[payloadLen + 16 + 2 + 64]; // up to 64 bytes padding - m_NextSendBuffer[2] = eNTCP2BlkRouterInfo; - htobe16buf (m_NextSendBuffer + 3, riLen + 1); // size - m_NextSendBuffer[5] = 0; // flag - memcpy (m_NextSendBuffer + 6, i2p::context.GetRouterInfo ().GetBuffer (), riLen); + // DateTime block + m_NextSendBuffer[2] = eNTCP2BlkDateTime; + htobe16buf (m_NextSendBuffer + 3, 4); + htobe32buf (m_NextSendBuffer + 5, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + // RouterInfo block + m_NextSendBuffer[9] = eNTCP2BlkRouterInfo; + htobe16buf (m_NextSendBuffer + 10, riLen + 1); // size + m_NextSendBuffer[12] = 0; // flag + memcpy (m_NextSendBuffer + 13, riBuffer->data (), riLen); // TODO: eliminate extra copy // padding block auto paddingSize = CreatePaddingBlock (payloadLen, m_NextSendBuffer + 2 + payloadLen, 64); payloadLen += paddingSize; @@ -1090,12 +1374,18 @@ namespace transport void NTCP2Session::SendTermination (NTCP2TerminationReason reason) { - if (!m_SendKey || !m_SendSipKey) return; - m_NextSendBuffer = new uint8_t[49]; // 49 = 12 bytes message + 16 bytes MAC + 2 bytes size + up to 19 padding block + if (!m_SendKey || +#if OPENSSL_SIPHASH + !m_SendMDCtx +#else + !m_SendSipKey +#endif + ) return; + m_NextSendBuffer = new uint8_t[49]; // 49 = 12 bytes message + 16 bytes MAC + 2 bytes size + up to 19 padding block // termination block m_NextSendBuffer[2] = eNTCP2BlkTermination; m_NextSendBuffer[3] = 0; m_NextSendBuffer[4] = 9; // 9 bytes block size - htobe64buf (m_NextSendBuffer + 5, m_ReceiveSequenceNumber); + htobe64buf (m_NextSendBuffer + 5, m_ReceiveSequenceNumber); m_NextSendBuffer[13] = (uint8_t)reason; // padding block auto paddingSize = CreatePaddingBlock (12, m_NextSendBuffer + 14, 19); @@ -1106,37 +1396,73 @@ namespace transport void NTCP2Session::SendTerminationAndTerminate (NTCP2TerminationReason reason) { SendTermination (reason); - m_Server.GetService ().post (std::bind (&NTCP2Session::Terminate, shared_from_this ())); // let termination message go + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::Terminate, shared_from_this ())); // let termination message go } - void NTCP2Session::SendI2NPMessages (const std::vector >& msgs) + void NTCP2Session::SendI2NPMessages (std::list >& msgs) { - m_Server.GetService ().post (std::bind (&NTCP2Session::PostI2NPMessages, shared_from_this (), msgs)); + if (m_IsTerminated || msgs.empty ()) + { + msgs.clear (); + return; + } + bool empty = false; + { + std::lock_guard l(m_IntermediateQueueMutex); + empty = m_IntermediateQueue.empty (); + m_IntermediateQueue.splice (m_IntermediateQueue.end (), msgs); + } + if (empty) + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::PostI2NPMessages, shared_from_this ())); } - void NTCP2Session::PostI2NPMessages (std::vector > msgs) + void NTCP2Session::PostI2NPMessages () { if (m_IsTerminated) return; - for (auto it: msgs) - m_SendQueue.push_back (it); - if (!m_IsSending) - SendQueue (); + std::list > msgs; + { + std::lock_guard l(m_IntermediateQueueMutex); + m_IntermediateQueue.swap (msgs); + } + bool isSemiFull = m_SendQueue.size () > NTCP2_MAX_OUTGOING_QUEUE_SIZE/2; + if (isSemiFull) + { + for (auto it: msgs) + if (it->onDrop) + it->Drop (); // drop earlier because we can handle it + else + m_SendQueue.push_back (std::move (it)); + } + else + m_SendQueue.splice (m_SendQueue.end (), msgs); + + if (!m_IsSending && m_IsEstablished) + SendQueue (); else if (m_SendQueue.size () > NTCP2_MAX_OUTGOING_QUEUE_SIZE) { - LogPrint (eLogWarning, "NTCP2: outgoing messages queue size exceeds ", NTCP2_MAX_OUTGOING_QUEUE_SIZE); + LogPrint (eLogWarning, "NTCP2: Outgoing messages queue size to ", + GetIdentHashBase64(), " exceeds ", NTCP2_MAX_OUTGOING_QUEUE_SIZE); Terminate (); - } + } + SetSendQueueSize (m_SendQueue.size ()); } - void NTCP2Session::SendLocalRouterInfo () + void NTCP2Session::SendLocalRouterInfo (bool update) { - if (!IsOutgoing ()) // we send it in SessionConfirmed - m_Server.GetService ().post (std::bind (&NTCP2Session::SendRouterInfo, shared_from_this ())); + if (update || !IsOutgoing ()) // we send it in SessionConfirmed for outgoing session + boost::asio::post (m_Server.GetService (), std::bind (&NTCP2Session::SendRouterInfo, shared_from_this ())); } + i2p::data::RouterInfo::SupportedTransports NTCP2Session::GetTransportType () const + { + if (m_RemoteEndpoint.address ().is_v4 ()) return i2p::data::RouterInfo::eNTCP2V4; + return i2p::util::net::IsYggdrasilAddress (m_RemoteEndpoint.address ()) ? i2p::data::RouterInfo::eNTCP2V6Mesh : i2p::data::RouterInfo::eNTCP2V6; + } + NTCP2Server::NTCP2Server (): - m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service), - m_TerminationTimer (m_Service) + RunnableServiceWithWork ("NTCP2"), m_TerminationTimer (GetService ()), + m_ProxyType(eNoProxy), m_Resolver(GetService ()), + m_Rng(i2p::util::GetMonotonicMicroseconds ()%1000000LL) { } @@ -1147,48 +1473,90 @@ namespace transport void NTCP2Server::Start () { - if (!m_IsRunning) + m_EstablisherService.Start (); + if (!IsRunning ()) { - m_IsRunning = true; - m_Thread = new std::thread (std::bind (&NTCP2Server::Run, this)); - auto& addresses = context.GetRouterInfo ().GetAddresses (); - for (const auto& address: addresses) + StartIOService (); + if(UsingProxy()) + { + LogPrint(eLogInfo, "NTCP2: Using proxy to connect to peers"); + // TODO: resolve proxy until it is resolved + boost::system::error_code e; + auto itr = m_Resolver.resolve(m_ProxyAddress, std::to_string(m_ProxyPort), e); + if(e) + LogPrint(eLogCritical, "NTCP2: Failed to resolve proxy ", e.message()); + else + { + m_ProxyEndpoint.reset (new boost::asio::ip::tcp::endpoint(*itr.begin ())); + if (m_ProxyEndpoint) + LogPrint(eLogDebug, "NTCP2: m_ProxyEndpoint ", *m_ProxyEndpoint); + } + } + else + LogPrint(eLogInfo, "NTCP2: Proxy is not used"); + // start acceptors + auto addresses = context.GetRouterInfo ().GetAddresses (); + if (!addresses) return; + for (const auto& address: *addresses) { if (!address) continue; - if (address->IsPublishedNTCP2 ()) + if (address->IsPublishedNTCP2 () && address->port) { - if (address->host.is_v4()) + if (address->IsV4()) { try { - m_NTCP2Acceptor.reset (new boost::asio::ip::tcp::acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), address->port))); - } - catch ( std::exception & ex ) + auto ep = m_Address4 ? boost::asio::ip::tcp::endpoint (m_Address4->address(), address->port): + boost::asio::ip::tcp::endpoint (boost::asio::ip::tcp::v4(), address->port); + m_NTCP2Acceptor.reset (new boost::asio::ip::tcp::acceptor (GetService (), ep)); + } + catch ( std::exception & ex ) { - LogPrint(eLogError, "NTCP2: Failed to bind to ip4 port ",address->port, ex.what()); + LogPrint(eLogCritical, "NTCP2: Failed to bind to v4 port ", address->port, ex.what()); + ThrowFatal ("Unable to start IPv4 NTCP2 transport at port ", address->port, ": ", ex.what ()); continue; } - LogPrint (eLogInfo, "NTCP2: Start listening TCP port ", address->port); + LogPrint (eLogInfo, "NTCP2: Start listening v4 TCP port ", address->port); auto conn = std::make_shared(*this); m_NTCP2Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAccept, this, conn, std::placeholders::_1)); } - else if (address->host.is_v6() && context.SupportsV6 ()) + else if (address->IsV6() && (context.SupportsV6 () || context.SupportsMesh ())) { - m_NTCP2V6Acceptor.reset (new boost::asio::ip::tcp::acceptor (m_Service)); + m_NTCP2V6Acceptor.reset (new boost::asio::ip::tcp::acceptor (GetService ())); try { m_NTCP2V6Acceptor->open (boost::asio::ip::tcp::v6()); m_NTCP2V6Acceptor->set_option (boost::asio::ip::v6_only (true)); m_NTCP2V6Acceptor->set_option (boost::asio::socket_base::reuse_address (true)); - m_NTCP2V6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address->port)); +#if defined(__linux__) && !defined(_NETINET_IN_H) + if (!m_Address6 && !m_YggdrasilAddress) // only if not binded to address + { + // Set preference to use public IPv6 address -- tested on linux, not works on windows, and not tested on others +#if (BOOST_VERSION >= 105500) + typedef boost::asio::detail::socket_option::integer ipv6PreferAddr; +#else + typedef boost::asio::detail::socket_option::integer ipv6PreferAddr; +#endif + m_NTCP2V6Acceptor->set_option (ipv6PreferAddr(IPV6_PREFER_SRC_PUBLIC | IPV6_PREFER_SRC_HOME | IPV6_PREFER_SRC_NONCGA)); + } +#endif + auto ep = boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address->port); + if (m_Address6 && !context.SupportsMesh ()) + ep = boost::asio::ip::tcp::endpoint (m_Address6->address(), address->port); + else if (m_YggdrasilAddress && !context.SupportsV6 ()) + ep = boost::asio::ip::tcp::endpoint (m_YggdrasilAddress->address(), address->port); + m_NTCP2V6Acceptor->bind (ep); m_NTCP2V6Acceptor->listen (); - LogPrint (eLogInfo, "NTCP2: Start listening V6 TCP port ", address->port); + LogPrint (eLogInfo, "NTCP2: Start listening v6 TCP port ", address->port); auto conn = std::make_shared (*this); m_NTCP2V6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAcceptV6, this, conn, std::placeholders::_1)); - } catch ( std::exception & ex ) { - LogPrint(eLogError, "NTCP2: failed to bind to ip6 port ", address->port); + } + catch ( std::exception & ex ) + { + LogPrint(eLogCritical, "NTCP2: Failed to bind to v6 port ", address->port, ": ", ex.what()); + ThrowFatal ("Unable to start IPv6 NTCP2 transport at port ", address->port, ": ", ex.what ()); continue; } } @@ -1200,64 +1568,67 @@ namespace transport void NTCP2Server::Stop () { + m_EstablisherService.Stop (); { // we have to copy it because Terminate changes m_NTCP2Sessions auto ntcpSessions = m_NTCP2Sessions; for (auto& it: ntcpSessions) it.second->Terminate (); for (auto& it: m_PendingIncomingSessions) - it->Terminate (); + it.second->Terminate (); } m_NTCP2Sessions.clear (); - if (m_IsRunning) + if (IsRunning ()) { - m_IsRunning = false; m_TerminationTimer.cancel (); - m_Service.stop (); - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } + m_ProxyEndpoint = nullptr; } + StopIOService (); } - void NTCP2Server::Run () + bool NTCP2Server::AddNTCP2Session (std::shared_ptr session, bool incoming) { - while (m_IsRunning) + if (!session) return false; + if (incoming) + m_PendingIncomingSessions.erase (session->GetRemoteEndpoint ().address ()); + if (!session->GetRemoteIdentity ()) { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "NTCP2: runtime exception: ", ex.what ()); - } + LogPrint (eLogWarning, "NTCP2: Unknown identity for ", session->GetRemoteEndpoint ()); + session->Terminate (); + return false; } - } - - bool NTCP2Server::AddNTCP2Session (std::shared_ptr session) - { - if (!session || !session->GetRemoteIdentity ()) return false; auto& ident = session->GetRemoteIdentity ()->GetIdentHash (); auto it = m_NTCP2Sessions.find (ident); if (it != m_NTCP2Sessions.end ()) { - LogPrint (eLogWarning, "NTCP2: session to ", ident.ToBase64 (), " already exists"); - session->Terminate(); - return false; + LogPrint (eLogWarning, "NTCP2: Session with ", ident.ToBase64 (), " already exists. ", incoming ? "Replaced" : "Dropped"); + if (incoming) + { + // replace by new session + auto s = it->second; + s->MoveSendQueue (session); + m_NTCP2Sessions.erase (it); + s->Terminate (); + } + else + { + session->Terminate (); + return false; + } } - m_NTCP2Sessions.insert (std::make_pair (ident, session)); + m_NTCP2Sessions.emplace (ident, session); return true; } void NTCP2Server::RemoveNTCP2Session (std::shared_ptr session) { if (session && session->GetRemoteIdentity ()) - m_NTCP2Sessions.erase (session->GetRemoteIdentity ()->GetIdentHash ()); + { + auto it = m_NTCP2Sessions.find (session->GetRemoteIdentity ()->GetIdentHash ()); + if (it != m_NTCP2Sessions.end () && it->second == session) + m_NTCP2Sessions.erase (it); + } } std::shared_ptr NTCP2Server::FindNTCP2Session (const i2p::data::IdentHash& ident) @@ -1268,28 +1639,57 @@ namespace transport return nullptr; } - void NTCP2Server::Connect(const boost::asio::ip::address & address, uint16_t port, std::shared_ptr conn) + void NTCP2Server::Connect(std::shared_ptr conn) { - LogPrint (eLogDebug, "NTCP2: Connecting to ", address ,":", port); - m_Service.post([this, address, port, conn]() + if (!conn || conn->GetRemoteEndpoint ().address ().is_unspecified ()) + { + LogPrint (eLogError, "NTCP2: Can't connect to unspecified address"); + return; + } + LogPrint (eLogDebug, "NTCP2: Connecting to ", conn->GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (conn->GetRemoteIdentity ()->GetIdentHash ()), ")"); + boost::asio::post (GetService (), [this, conn]() { if (this->AddNTCP2Session (conn)) { - auto timer = std::make_shared(m_Service); + auto timer = std::make_shared(GetService ()); auto timeout = NTCP2_CONNECT_TIMEOUT * 5; conn->SetTerminationTimeout(timeout * 2); timer->expires_from_now (boost::posix_time::seconds(timeout)); - timer->async_wait ([conn, timeout](const boost::system::error_code& ecode) + timer->async_wait ([conn, timeout](const boost::system::error_code& ecode) { if (ecode != boost::asio::error::operation_aborted) { LogPrint (eLogInfo, "NTCP2: Not connected in ", timeout, " seconds"); - //i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ()->GetIdentHash (), true); conn->Terminate (); } }); - conn->GetSocket ().async_connect (boost::asio::ip::tcp::endpoint (address, port), std::bind (&NTCP2Server::HandleConnect, this, std::placeholders::_1, conn, timer)); + // bind to local address + std::shared_ptr localAddress; + if (conn->GetRemoteEndpoint ().address ().is_v6 ()) + { + if (i2p::util::net::IsYggdrasilAddress (conn->GetRemoteEndpoint ().address ())) + localAddress = m_YggdrasilAddress; + else + localAddress = m_Address6; + conn->GetSocket ().open (boost::asio::ip::tcp::v6 ()); + } + else + { + localAddress = m_Address4; + conn->GetSocket ().open (boost::asio::ip::tcp::v4 ()); + } + if (localAddress) + { + boost::system::error_code ec; + conn->GetSocket ().bind (*localAddress, ec); + if (ec) + LogPrint (eLogError, "NTCP2: Can't bind to ", localAddress->address ().to_string (), ": ", ec.message ()); + } + conn->GetSocket ().async_connect (conn->GetRemoteEndpoint (), std::bind (&NTCP2Server::HandleConnect, this, std::placeholders::_1, conn, timer)); } + else + conn->Terminate (); }); } @@ -1303,35 +1703,54 @@ namespace transport } else { - LogPrint (eLogDebug, "NTCP2: Connected to ", conn->GetSocket ().remote_endpoint ()); - if (conn->GetSocket ().local_endpoint ().protocol () == boost::asio::ip::tcp::v6()) // ipv6 - context.UpdateNTCP2V6Address (conn->GetSocket ().local_endpoint ().address ()); + LogPrint (eLogDebug, "NTCP2: Connected to ", conn->GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (conn->GetRemoteIdentity ()->GetIdentHash ()), ")"); conn->ClientLogin (); } } void NTCP2Server::HandleAccept (std::shared_ptr conn, const boost::system::error_code& error) { - if (!error) + if (!error && conn) { boost::system::error_code ec; auto ep = conn->GetSocket ().remote_endpoint(ec); if (!ec) { LogPrint (eLogDebug, "NTCP2: Connected from ", ep); - if (conn) + if (!i2p::transport::transports.IsInReservedRange(ep.address ())) { - conn->ServerLogin (); - m_PendingIncomingSessions.push_back (conn); + if (m_PendingIncomingSessions.emplace (ep.address (), conn).second) + { + conn->SetRemoteEndpoint (ep); + conn->ServerLogin (); + conn = nullptr; + } + else + LogPrint (eLogInfo, "NTCP2: Incoming session from ", ep.address (), " is already pending"); } + else + LogPrint (eLogError, "NTCP2: Incoming connection from invalid IP ", ep.address ()); } else LogPrint (eLogError, "NTCP2: Connected from error ", ec.message ()); } + else + { + LogPrint (eLogError, "NTCP2: Accept error ", error.message ()); + if (error == boost::asio::error::no_descriptors) + { + i2p::context.SetError (eRouterErrorNoDescriptors); + return; + } + } if (error != boost::asio::error::operation_aborted) { - conn = std::make_shared (*this); + if (!conn) // connection is used, create new one + conn = std::make_shared (*this); + else // reuse failed + conn->Close (); m_NTCP2Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAccept, this, conn, std::placeholders::_1)); } @@ -1339,26 +1758,47 @@ namespace transport void NTCP2Server::HandleAcceptV6 (std::shared_ptr conn, const boost::system::error_code& error) { - if (!error) + if (!error && conn) { boost::system::error_code ec; auto ep = conn->GetSocket ().remote_endpoint(ec); if (!ec) { LogPrint (eLogDebug, "NTCP2: Connected from ", ep); - if (conn) + if (!i2p::transport::transports.IsInReservedRange(ep.address ()) || + i2p::util::net::IsYggdrasilAddress (ep.address ())) { - conn->ServerLogin (); - m_PendingIncomingSessions.push_back (conn); + if (m_PendingIncomingSessions.emplace (ep.address (), conn).second) + { + conn->SetRemoteEndpoint (ep); + conn->ServerLogin (); + conn = nullptr; + } + else + LogPrint (eLogInfo, "NTCP2: Incoming session from ", ep.address (), " is already pending"); } + else + LogPrint (eLogError, "NTCP2: Incoming connection from invalid IP ", ep.address ()); } else LogPrint (eLogError, "NTCP2: Connected from error ", ec.message ()); } + else + { + LogPrint (eLogError, "NTCP2: Accept ipv6 error ", error.message ()); + if (error == boost::asio::error::no_descriptors) + { + i2p::context.SetErrorV6 (eRouterErrorNoDescriptors); + return; + } + } if (error != boost::asio::error::operation_aborted) { - conn = std::make_shared (*this); + if (!conn) // connection is used, create new one + conn = std::make_shared (*this); + else // reuse failed + conn->Close (); m_NTCP2V6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAcceptV6, this, conn, std::placeholders::_1)); } @@ -1366,7 +1806,8 @@ namespace transport void NTCP2Server::ScheduleTermination () { - m_TerminationTimer.expires_from_now (boost::posix_time::seconds(NTCP2_TERMINATION_CHECK_TIMEOUT)); + m_TerminationTimer.expires_from_now (boost::posix_time::seconds( + NTCP2_TERMINATION_CHECK_TIMEOUT + m_Rng () % NTCP2_TERMINATION_CHECK_TIMEOUT_VARIANCE)); m_TerminationTimer.async_wait (std::bind (&NTCP2Server::HandleTerminationTimer, this, std::placeholders::_1)); } @@ -1384,23 +1825,196 @@ namespace transport LogPrint (eLogDebug, "NTCP2: No activity for ", session->GetTerminationTimeout (), " seconds"); session->TerminateByTimeout (); // it doesn't change m_NTCP2Session right a way } + else + it.second->DeleteNextReceiveBuffer (ts); // pending for (auto it = m_PendingIncomingSessions.begin (); it != m_PendingIncomingSessions.end ();) { - if ((*it)->IsEstablished () || (*it)->IsTerminated ()) - it = m_PendingIncomingSessions.erase (it); // established or terminated - else if ((*it)->IsTerminationTimeoutExpired (ts)) + if (it->second->IsEstablished () || it->second->IsTerminationTimeoutExpired (ts)) { - (*it)->Terminate (); - it = m_PendingIncomingSessions.erase (it); // expired + it->second->Terminate (); + it = m_PendingIncomingSessions.erase (it); // established of expired } + else if (it->second->IsTerminated ()) + it = m_PendingIncomingSessions.erase (it); // already terminated else it++; } - ScheduleTermination (); + + // try to restart acceptors if no description + // we do it after timer to let timer take descriptor first + if (i2p::context.GetError () == eRouterErrorNoDescriptors) + { + i2p::context.SetError (eRouterErrorNone); + auto conn = std::make_shared (*this); + m_NTCP2Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAccept, this, + conn, std::placeholders::_1)); + } + if (i2p::context.GetErrorV6 () == eRouterErrorNoDescriptors) + { + i2p::context.SetErrorV6 (eRouterErrorNone); + auto conn = std::make_shared (*this); + m_NTCP2V6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAcceptV6, this, + conn, std::placeholders::_1)); + } } } -} -} + void NTCP2Server::ConnectWithProxy (std::shared_ptr conn) + { + if(!m_ProxyEndpoint) return; + if (!conn || conn->GetRemoteEndpoint ().address ().is_unspecified ()) + { + LogPrint (eLogError, "NTCP2: Can't connect to unspecified address"); + return; + } + boost::asio::post (GetService(), [this, conn]() + { + if (this->AddNTCP2Session (conn)) + { + auto timer = std::make_shared(GetService()); + auto timeout = NTCP2_CONNECT_TIMEOUT * 5; + conn->SetTerminationTimeout(timeout * 2); + timer->expires_from_now (boost::posix_time::seconds(timeout)); + timer->async_wait ([conn, timeout](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + LogPrint (eLogInfo, "NTCP2: Not connected in ", timeout, " seconds"); + conn->Terminate (); + } + }); + conn->GetSocket ().async_connect (*m_ProxyEndpoint, std::bind (&NTCP2Server::HandleProxyConnect, this, std::placeholders::_1, conn, timer)); + } + }); + } + + void NTCP2Server::UseProxy(ProxyType proxytype, const std::string& addr, uint16_t port, + const std::string& user, const std::string& pass) + { + m_ProxyType = proxytype; + m_ProxyAddress = addr; + m_ProxyPort = port; + if (m_ProxyType == eHTTPProxy ) + m_ProxyAuthorization = i2p::http::CreateBasicAuthorizationString (user, pass); + } + + void NTCP2Server::HandleProxyConnect(const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer) + { + if (ecode) + { + LogPrint(eLogWarning, "NTCP2: Failed to connect to proxy ", ecode.message()); + timer->cancel(); + conn->Terminate(); + return; + } + switch (m_ProxyType) + { + case eSocksProxy: + { + // TODO: support username/password auth etc + Socks5Handshake (conn->GetSocket(), conn->GetRemoteEndpoint (), + [conn, timer](const boost::system::error_code& ec) + { + timer->cancel(); + if (!ec) + conn->ClientLogin(); + else + { + LogPrint(eLogError, "NTCP2: SOCKS proxy handshake error ", ec.message()); + conn->Terminate(); + } + }); + break; + } + case eHTTPProxy: + { + auto& ep = conn->GetRemoteEndpoint (); + i2p::http::HTTPReq req; + req.method = "CONNECT"; + req.version ="HTTP/1.1"; + if(ep.address ().is_v6 ()) + req.uri = "[" + ep.address ().to_string() + "]:" + std::to_string(ep.port ()); + else + req.uri = ep.address ().to_string() + ":" + std::to_string(ep.port ()); + if (!m_ProxyAuthorization.empty ()) + req.AddHeader("Proxy-Authorization", m_ProxyAuthorization); + + boost::asio::streambuf writebuff; + std::ostream out(&writebuff); + out << req.to_string(); + + boost::asio::async_write(conn->GetSocket(), writebuff.data(), boost::asio::transfer_all(), + [](const boost::system::error_code & ec, std::size_t transferred) + { + (void) transferred; + if(ec) + LogPrint(eLogError, "NTCP2: HTTP proxy write error ", ec.message()); + }); + + auto readbuff = std::make_shared(); + boost::asio::async_read_until(conn->GetSocket(), *readbuff, "\r\n\r\n", + [readbuff, timer, conn] (const boost::system::error_code & ec, std::size_t transferred) + { + if(ec) + { + LogPrint(eLogError, "NTCP2: HTTP proxy read error ", ec.message()); + timer->cancel(); + conn->Terminate(); + } + else + { + readbuff->commit(transferred); + i2p::http::HTTPRes res; + if(res.parse(std::string {boost::asio::buffers_begin(readbuff->data ()), boost::asio::buffers_begin(readbuff->data ()) + readbuff->size ()}) > 0) + { + if(res.code == 200) + { + timer->cancel(); + conn->ClientLogin(); + return; + } + else + LogPrint(eLogError, "NTCP2: HTTP proxy rejected request ", res.code); + } + else + LogPrint(eLogError, "NTCP2: HTTP proxy gave malformed response"); + timer->cancel(); + conn->Terminate(); + } + }); + break; + } + default: + LogPrint(eLogError, "NTCP2: Unknown proxy type, invalid state"); + } + } + + void NTCP2Server::SetLocalAddress (const boost::asio::ip::address& localAddress) + { + auto addr = std::make_shared(boost::asio::ip::tcp::endpoint(localAddress, 0)); + if (localAddress.is_v6 ()) + { + if (i2p::util::net::IsYggdrasilAddress (localAddress)) + m_YggdrasilAddress = addr; + else + m_Address6 = addr; + } + else + m_Address4 = addr; + } + + void NTCP2Server::AEADChaCha20Poly1305Encrypt (const std::vector >& bufs, + const uint8_t * key, const uint8_t * nonce, uint8_t * mac) + { + return m_Encryptor.Encrypt (bufs, key, nonce, mac); + } + + bool NTCP2Server::AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, + const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return m_Decryptor.Decrypt (msg, msgLen, ad, adLen, key, nonce, buf, len); + } +} +} diff --git a/libi2pd/NTCP2.h b/libi2pd/NTCP2.h index 2bfc72b9..5ad5b955 100644 --- a/libi2pd/NTCP2.h +++ b/libi2pd/NTCP2.h @@ -1,22 +1,20 @@ /* -* Copyright (c) 2013-2018, The PurpleI2P Project +* Copyright (c) 2013-2024, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * * See full license text in LICENSE file at top of project tree * -* Kovri go write your own code -* */ #ifndef NTCP2_H__ #define NTCP2_H__ #include #include -#include #include #include #include +#include #include #include #include @@ -30,15 +28,23 @@ namespace i2p namespace transport { - const size_t NTCP2_UNENCRYPTED_FRAME_MAX_SIZE = 65519; + const size_t NTCP2_UNENCRYPTED_FRAME_MAX_SIZE = 65519; + const size_t NTCP2_SEND_AFTER_FRAME_SIZE = 16386; // send frame when exceeds this size + const size_t NTCP2_SESSION_REQUEST_MAX_SIZE = 287; + const size_t NTCP2_SESSION_CREATED_MAX_SIZE = 287; const int NTCP2_MAX_PADDING_RATIO = 6; // in % const int NTCP2_CONNECT_TIMEOUT = 5; // 5 seconds const int NTCP2_ESTABLISH_TIMEOUT = 10; // 10 seconds - const int NTCP2_TERMINATION_TIMEOUT = 120; // 2 minutes - const int NTCP2_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds + const int NTCP2_TERMINATION_TIMEOUT = 115; // 2 minutes - 5 seconds + const int NTCP2_TERMINATION_TIMEOUT_VARIANCE = 10; // 10 seconds + const int NTCP2_TERMINATION_CHECK_TIMEOUT = 28; // 28 seconds + const int NTCP2_TERMINATION_CHECK_TIMEOUT_VARIANCE = 5; // 5 seconds + const int NTCP2_RECEIVE_BUFFER_DELETION_TIMEOUT = 3; // 3 seconds + const int NTCP2_ROUTERINFO_RESEND_INTERVAL = 25*60; // 25 minuntes in seconds + const int NTCP2_ROUTERINFO_RESEND_INTERVAL_THRESHOLD = 25*60; // 25 minuntes - const int NTCP2_CLOCK_SKEW = 60; // in seconds + const int NTCP2_CLOCK_SKEW = 60; // in seconds const int NTCP2_MAX_OUTGOING_QUEUE_SIZE = 500; // how many messages we can queue up enum NTCP2BlockType @@ -48,8 +54,8 @@ namespace transport eNTCP2BlkRouterInfo, // 2 eNTCP2BlkI2NPMessage, // 3 eNTCP2BlkTermination, // 4 - eNTCP2BlkPadding = 254 - }; + eNTCP2BlkPadding = 254 + }; enum NTCP2TerminationReason { @@ -71,85 +77,91 @@ namespace transport eNTCP2RouterInfoSignatureVerificationFail, // 15 eNTCP2IncorrectSParameter, // 16 eNTCP2Banned, // 17 - }; - - // RouterInfo flags - const uint8_t NTCP2_ROUTER_INFO_FLAG_REQUEST_FLOOD = 0x01; + }; - struct NTCP2Establisher + // RouterInfo flags + const uint8_t NTCP2_ROUTER_INFO_FLAG_REQUEST_FLOOD = 0x01; + + struct NTCP2Establisher: private i2p::crypto::NoiseSymmetricState { NTCP2Establisher (); ~NTCP2Establisher (); - - const uint8_t * GetPub () const { return m_EphemeralKeys.GetPublicKey (); }; + + const uint8_t * GetPub () const { return m_EphemeralKeys->GetPublicKey (); }; const uint8_t * GetRemotePub () const { return m_RemoteEphemeralPublicKey; }; // Y for Alice and X for Bob uint8_t * GetRemotePub () { return m_RemoteEphemeralPublicKey; }; // to set - const uint8_t * GetK () const { return m_K; }; const uint8_t * GetCK () const { return m_CK; }; const uint8_t * GetH () const { return m_H; }; - void KDF1Alice (); - void KDF1Bob (); - void KDF2Alice (); - void KDF2Bob (); - void KDF3Alice (); // for SessionConfirmed part 2 - void KDF3Bob (); + bool KDF1Alice (); + bool KDF1Bob (); + bool KDF2Alice (); + bool KDF2Bob (); + bool KDF3Alice (); // for SessionConfirmed part 2 + bool KDF3Bob (); - void MixKey (const uint8_t * inputKeyMaterial); - void MixHash (const uint8_t * buf, size_t len); - void KeyDerivationFunction1 (const uint8_t * pub, i2p::crypto::X25519Keys& priv, const uint8_t * rs, const uint8_t * epub); // for SessionRequest, (pub, priv) for DH - void KeyDerivationFunction2 (const uint8_t * sessionRequest, size_t sessionRequestLen, const uint8_t * epub); // for SessionCreate + bool KeyDerivationFunction1 (const uint8_t * pub, i2p::crypto::X25519Keys& priv, const uint8_t * rs, const uint8_t * epub); // for SessionRequest, (pub, priv) for DH + bool KeyDerivationFunction2 (const uint8_t * sessionRequest, size_t sessionRequestLen, const uint8_t * epub); // for SessionCreate void CreateEphemeralKey (); - void CreateSessionRequestMessage (); - void CreateSessionCreatedMessage (); - void CreateSessionConfirmedMessagePart1 (const uint8_t * nonce); - void CreateSessionConfirmedMessagePart2 (const uint8_t * nonce); + bool CreateSessionRequestMessage (std::mt19937& rng); + bool CreateSessionCreatedMessage (std::mt19937& rng); + bool CreateSessionConfirmedMessagePart1 (); + bool CreateSessionConfirmedMessagePart2 (); - bool ProcessSessionRequestMessage (uint16_t& paddingLen); + bool ProcessSessionRequestMessage (uint16_t& paddingLen, bool& clockSkew); bool ProcessSessionCreatedMessage (uint16_t& paddingLen); - bool ProcessSessionConfirmedMessagePart1 (const uint8_t * nonce); - bool ProcessSessionConfirmedMessagePart2 (const uint8_t * nonce, uint8_t * m3p2Buf); + bool ProcessSessionConfirmedMessagePart1 (); + bool ProcessSessionConfirmedMessagePart2 (uint8_t * m3p2Buf); - i2p::crypto::X25519Keys m_EphemeralKeys; + std::shared_ptr m_EphemeralKeys; uint8_t m_RemoteEphemeralPublicKey[32]; // x25519 - uint8_t m_RemoteStaticKey[32], m_IV[16], m_H[32] /*h*/, m_CK[33] /*ck*/, m_K[32] /*k*/; + uint8_t m_RemoteStaticKey[32], m_IV[16]; i2p::data::IdentHash m_RemoteIdentHash; - uint16_t m3p2Len; + uint16_t m3p2Len; - uint8_t * m_SessionRequestBuffer, * m_SessionCreatedBuffer, * m_SessionConfirmedBuffer; + uint8_t m_SessionRequestBuffer[NTCP2_SESSION_REQUEST_MAX_SIZE], + m_SessionCreatedBuffer[NTCP2_SESSION_CREATED_MAX_SIZE], * m_SessionConfirmedBuffer; size_t m_SessionRequestBufferLen, m_SessionCreatedBufferLen; - }; + }; class NTCP2Server; class NTCP2Session: public TransportSession, public std::enable_shared_from_this { public: - NTCP2Session (NTCP2Server& server, std::shared_ptr in_RemoteRouter = nullptr); + NTCP2Session (NTCP2Server& server, std::shared_ptr in_RemoteRouter = nullptr, + std::shared_ptr addr = nullptr); ~NTCP2Session (); void Terminate (); void TerminateByTimeout (); - void Done (); + void Done () override; + void Close (); // for accept + void DeleteNextReceiveBuffer (uint64_t ts); boost::asio::ip::tcp::socket& GetSocket () { return m_Socket; }; + const boost::asio::ip::tcp::endpoint& GetRemoteEndpoint () { return m_RemoteEndpoint; }; + void SetRemoteEndpoint (const boost::asio::ip::tcp::endpoint& ep) { m_RemoteEndpoint = ep; }; - bool IsEstablished () const { return m_IsEstablished; }; + bool IsEstablished () const override { return m_IsEstablished; }; + i2p::data::RouterInfo::SupportedTransports GetTransportType () const override; bool IsTerminated () const { return m_IsTerminated; }; - void ClientLogin (); // Alice + void ClientLogin (); // Alice void ServerLogin (); // Bob - - void SendLocalRouterInfo (); // after handshake - void SendI2NPMessages (const std::vector >& msgs); + void SendLocalRouterInfo (bool update) override; // after handshake or by update + void SendI2NPMessages (std::list >& msgs) override; + void MoveSendQueue (std::shared_ptr other); + private: void Established (); void CreateNonce (uint64_t seqn, uint8_t * nonce); + void CreateNextReceivedBuffer (size_t size); void KeyDerivationFunctionDataPhase (); void SetSipKeys (const uint8_t * sendSipKey, const uint8_t * receiveSipKey); @@ -160,13 +172,17 @@ namespace transport void HandleSessionRequestSent (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleSessionRequestReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); + void ProcessSessionRequest (size_t len); void HandleSessionRequestPaddingReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleSessionCreatedSent (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleSessionCreatedReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); + void ProcessSessionCreated (size_t len); void HandleSessionCreatedPaddingReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleSessionConfirmedSent (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleSessionConfirmedReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); - + void ProcessSessionConfirmed (); + void EstablishSessionAfterSessionConfirmed (std::shared_ptr > buf, size_t size); + // data void ReceiveLength (); void HandleReceivedLength (const boost::system::error_code& ecode, std::size_t bytes_transferred); @@ -184,26 +200,27 @@ namespace transport void SendRouterInfo (); void SendTermination (NTCP2TerminationReason reason); void SendTerminationAndTerminate (NTCP2TerminationReason reason); - void PostI2NPMessages (std::vector > msgs); + void PostI2NPMessages (); private: NTCP2Server& m_Server; boost::asio::ip::tcp::socket m_Socket; + boost::asio::ip::tcp::endpoint m_RemoteEndpoint; bool m_IsEstablished, m_IsTerminated; std::unique_ptr m_Establisher; // data phase - uint8_t m_Kab[33], m_Kba[32], m_Sipkeysab[33], m_Sipkeysba[32]; + uint8_t m_Kab[32], m_Kba[32], m_Sipkeysab[32], m_Sipkeysba[32]; const uint8_t * m_SendKey, * m_ReceiveKey; -#if OPENSSL_SIPHASH - EVP_PKEY * m_SendSipKey, * m_ReceiveSipKey; +#if OPENSSL_SIPHASH EVP_MD_CTX * m_SendMDCtx, * m_ReceiveMDCtx; #else const uint8_t * m_SendSipKey, * m_ReceiveSipKey; #endif - uint16_t m_NextReceivedLen; + uint16_t m_NextReceivedLen; uint8_t * m_NextReceivedBuffer, * m_NextSendBuffer; + size_t m_NextReceivedBufferSize; union { uint8_t buf[8]; @@ -213,51 +230,97 @@ namespace transport i2p::I2NPMessagesHandler m_Handler; - bool m_IsSending; + bool m_IsSending, m_IsReceiving; std::list > m_SendQueue; + uint64_t m_NextRouterInfoResendTime; // seconds since epoch + + std::list > m_IntermediateQueue; // from transports + mutable std::mutex m_IntermediateQueueMutex; + + uint16_t m_PaddingSizes[16]; + int m_NextPaddingSize; }; - class NTCP2Server + class NTCP2Server: private i2p::util::RunnableServiceWithWork { + private: + + class EstablisherService: public i2p::util::RunnableServiceWithWork + { + public: + + EstablisherService (): RunnableServiceWithWork ("NTCP2e") {}; + auto& GetService () { return GetIOService (); }; + void Start () { StartIOService (); }; + void Stop () { StopIOService (); }; + }; + public: + enum ProxyType + { + eNoProxy, + eSocksProxy, + eHTTPProxy + }; + NTCP2Server (); ~NTCP2Server (); void Start (); void Stop (); + auto& GetService () { return GetIOService (); }; + auto& GetEstablisherService () { return m_EstablisherService.GetService (); }; + std::mt19937& GetRng () { return m_Rng; }; + void AEADChaCha20Poly1305Encrypt (const std::vector >& bufs, + const uint8_t * key, const uint8_t * nonce, uint8_t * mac); + bool AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); + - bool AddNTCP2Session (std::shared_ptr session); + bool AddNTCP2Session (std::shared_ptr session, bool incoming = false); void RemoveNTCP2Session (std::shared_ptr session); std::shared_ptr FindNTCP2Session (const i2p::data::IdentHash& ident); - boost::asio::io_service& GetService () { return m_Service; }; - - void Connect(const boost::asio::ip::address & address, uint16_t port, std::shared_ptr conn); + void ConnectWithProxy (std::shared_ptr conn); + void Connect(std::shared_ptr conn); + + bool UsingProxy() const { return m_ProxyType != eNoProxy; }; + void UseProxy(ProxyType proxy, const std::string& address, uint16_t port, const std::string& user, const std::string& pass); + + void SetLocalAddress (const boost::asio::ip::address& localAddress); private: - void Run (); void HandleAccept (std::shared_ptr conn, const boost::system::error_code& error); void HandleAcceptV6 (std::shared_ptr conn, const boost::system::error_code& error); - void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer); - + void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer); + void HandleProxyConnect(const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer); + // timer void ScheduleTermination (); void HandleTerminationTimer (const boost::system::error_code& ecode); private: - bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; - boost::asio::io_service::work m_Work; boost::asio::deadline_timer m_TerminationTimer; std::unique_ptr m_NTCP2Acceptor, m_NTCP2V6Acceptor; - std::map > m_NTCP2Sessions; - std::list > m_PendingIncomingSessions; + std::map > m_NTCP2Sessions; + std::map > m_PendingIncomingSessions; + ProxyType m_ProxyType; + std::string m_ProxyAddress, m_ProxyAuthorization; + uint16_t m_ProxyPort; + boost::asio::ip::tcp::resolver m_Resolver; + std::unique_ptr m_ProxyEndpoint; + + std::shared_ptr m_Address4, m_Address6, m_YggdrasilAddress; + std::mt19937 m_Rng; + EstablisherService m_EstablisherService; + i2p::crypto::AEADChaCha20Poly1305Encryptor m_Encryptor; + i2p::crypto::AEADChaCha20Poly1305Decryptor m_Decryptor; + public: // for HTTP/I2PControl diff --git a/libi2pd/NTCPSession.cpp b/libi2pd/NTCPSession.cpp deleted file mode 100644 index 68a4133f..00000000 --- a/libi2pd/NTCPSession.cpp +++ /dev/null @@ -1,1314 +0,0 @@ -#include -#include -#include - -#include "I2PEndian.h" -#include "Base.h" -#include "Crypto.h" -#include "Log.h" -#include "Timestamp.h" -#include "I2NPProtocol.h" -#include "RouterContext.h" -#include "Transports.h" -#include "NetDb.hpp" -#include "NTCPSession.h" -#include "HTTP.h" -#include "util.h" -#ifdef WITH_EVENTS -#include "Event.h" -#endif - -using namespace i2p::crypto; - -namespace i2p -{ -namespace transport -{ - - struct NTCPWork - { - std::shared_ptr session; - }; - - NTCPSession::NTCPSession (NTCPServer& server, std::shared_ptr in_RemoteRouter): - TransportSession (in_RemoteRouter, NTCP_ESTABLISH_TIMEOUT), - m_Server (server), m_Socket (m_Server.GetService ()), - m_IsEstablished (false), m_IsTerminated (false), - m_ReceiveBufferOffset (0), m_NextMessage (nullptr), m_IsSending (false) - { - m_Establisher = new Establisher; - } - - NTCPSession::~NTCPSession () - { - delete m_Establisher; - } - - void NTCPSession::CreateAESKey (uint8_t * pubKey) - { - uint8_t sharedKey[256]; - m_DHKeysPair->Agree (pubKey, sharedKey); // time consuming operation - - i2p::crypto::AESKey aesKey; - if (sharedKey[0] & 0x80) - { - aesKey[0] = 0; - memcpy (aesKey + 1, sharedKey, 31); - } - else if (sharedKey[0]) - memcpy (aesKey, sharedKey, 32); - else - { - // find first non-zero byte - uint8_t * nonZero = sharedKey + 1; - while (!*nonZero) - { - nonZero++; - if (nonZero - sharedKey > 32) - { - LogPrint (eLogWarning, "NTCP: First 32 bytes of shared key is all zeros, ignored"); - return; - } - } - memcpy (aesKey, nonZero, 32); - } - - m_Decryption.SetKey (aesKey); - m_Encryption.SetKey (aesKey); - } - - void NTCPSession::Done () - { - m_Server.GetService ().post (std::bind (&NTCPSession::Terminate, shared_from_this ())); - } - - void NTCPSession::Terminate () - { - if (!m_IsTerminated) - { - m_IsTerminated = true; - m_IsEstablished = false; - m_Socket.close (); - transports.PeerDisconnected (shared_from_this ()); - m_Server.RemoveNTCPSession (shared_from_this ()); - m_SendQueue.clear (); - m_NextMessage = nullptr; - LogPrint (eLogDebug, "NTCP: session terminated"); - } - } - - void NTCPSession::Connected () - { - m_IsEstablished = true; - - delete m_Establisher; - m_Establisher = nullptr; - - m_DHKeysPair = nullptr; - - SetTerminationTimeout (NTCP_TERMINATION_TIMEOUT); - SendTimeSyncMessage (); - transports.PeerConnected (shared_from_this ()); - } - - boost::asio::io_service & NTCPSession::GetService() - { - return m_Server.GetService(); - } - - void NTCPSession::ClientLogin () - { - if (!m_DHKeysPair) - m_DHKeysPair = transports.GetNextDHKeysPair (); - // send Phase1 - const uint8_t * x = m_DHKeysPair->GetPublicKey (); - memcpy (m_Establisher->phase1.pubKey, x, 256); - SHA256(x, 256, m_Establisher->phase1.HXxorHI); - const uint8_t * ident = m_RemoteIdentity->GetIdentHash (); - for (int i = 0; i < 32; i++) - m_Establisher->phase1.HXxorHI[i] ^= ident[i]; - - boost::asio::async_write (m_Socket, boost::asio::buffer (&m_Establisher->phase1, sizeof (NTCPPhase1)), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase1Sent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); - } - - void NTCPSession::ServerLogin () - { - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - // receive Phase1 - boost::asio::async_read (m_Socket, boost::asio::buffer(&m_Establisher->phase1, sizeof (NTCPPhase1)), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase1Received, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); - } - - void NTCPSession::HandlePhase1Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogInfo, "NTCP: couldn't send Phase 1 message: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - boost::asio::async_read (m_Socket, boost::asio::buffer(&m_Establisher->phase2, sizeof (NTCPPhase2)), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase2Received, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); - } - } - - void NTCPSession::HandlePhase1Received (const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogInfo, "NTCP: phase 1 read error: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - // verify ident - uint8_t digest[32]; - SHA256(m_Establisher->phase1.pubKey, 256, digest); - const uint8_t * ident = i2p::context.GetIdentHash (); - for (int i = 0; i < 32; i++) - { - if ((m_Establisher->phase1.HXxorHI[i] ^ ident[i]) != digest[i]) - { - LogPrint (eLogError, "NTCP: phase 1 error: ident mismatch"); - Terminate (); - return; - } - } - // TODO: check for number of pending keys - auto work = new NTCPWork{shared_from_this()}; - m_Server.Work(work->session, [work, this]() -> std::function { - if (!work->session->m_DHKeysPair) - work->session->m_DHKeysPair = transports.GetNextDHKeysPair (); - work->session->CreateAESKey (work->session->m_Establisher->phase1.pubKey); - return std::bind(&NTCPSession::SendPhase2, work->session, work); - }); - } - } - - void NTCPSession::SendPhase2 (NTCPWork * work) - { - if(work) - delete work; - const uint8_t * y = m_DHKeysPair->GetPublicKey (); - memcpy (m_Establisher->phase2.pubKey, y, 256); - uint8_t xy[512]; - memcpy (xy, m_Establisher->phase1.pubKey, 256); - memcpy (xy + 256, y, 256); - SHA256(xy, 512, m_Establisher->phase2.encrypted.hxy); - uint32_t tsB = htobe32 (i2p::util::GetSecondsSinceEpoch ()); - memcpy (m_Establisher->phase2.encrypted.timestamp, &tsB, 4); - RAND_bytes (m_Establisher->phase2.encrypted.filler, 12); - - m_Encryption.SetIV (y + 240); - m_Decryption.SetIV (m_Establisher->phase1.HXxorHI + 16); - - m_Encryption.Encrypt ((uint8_t *)&m_Establisher->phase2.encrypted, sizeof(m_Establisher->phase2.encrypted), (uint8_t *)&m_Establisher->phase2.encrypted); - boost::asio::async_write(m_Socket, boost::asio::buffer (&m_Establisher->phase2, sizeof (NTCPPhase2)), boost::asio::transfer_all(), - std::bind(&NTCPSession::HandlePhase2Sent, shared_from_this(), std::placeholders::_1, std::placeholders::_2, tsB)); - } - - void NTCPSession::HandlePhase2Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Couldn't send Phase 2 message: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - boost::asio::async_read (m_Socket, boost::asio::buffer(m_ReceiveBuffer, NTCP_DEFAULT_PHASE3_SIZE), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase3Received, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, tsB)); - } - } - - void NTCPSession::HandlePhase2Received (const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Phase 2 read error: ", ecode.message (), ". Wrong ident assumed"); - if (ecode != boost::asio::error::operation_aborted) - { - // this RI is not valid - i2p::data::netdb.SetUnreachable (GetRemoteIdentity ()->GetIdentHash (), true); - transports.ReuseDHKeysPair (m_DHKeysPair); - m_DHKeysPair = nullptr; - Terminate (); - } - } - else - { - auto work = new NTCPWork{shared_from_this()}; - m_Server.Work(work->session, [work, this]() -> std::function { - work->session->CreateAESKey (work->session->m_Establisher->phase2.pubKey); - return std::bind(&NTCPSession::HandlePhase2, work->session, work); - }); - } - } - - void NTCPSession::HandlePhase2 (NTCPWork * work) - { - if(work) delete work; - m_Decryption.SetIV (m_Establisher->phase2.pubKey + 240); - m_Encryption.SetIV (m_Establisher->phase1.HXxorHI + 16); - - m_Decryption.Decrypt((uint8_t *)&m_Establisher->phase2.encrypted, sizeof(m_Establisher->phase2.encrypted), (uint8_t *)&m_Establisher->phase2.encrypted); - // verify - uint8_t xy[512]; - memcpy (xy, m_DHKeysPair->GetPublicKey (), 256); - memcpy (xy + 256, m_Establisher->phase2.pubKey, 256); - uint8_t digest[32]; - SHA256 (xy, 512, digest); - if (memcmp(m_Establisher->phase2.encrypted.hxy, digest, 32)) - { - LogPrint (eLogError, "NTCP: Phase 2 process error: incorrect hash"); - transports.ReuseDHKeysPair (m_DHKeysPair); - m_DHKeysPair = nullptr; - Terminate (); - return ; - } - SendPhase3 (); - } - - void NTCPSession::SendPhase3 () - { - auto& keys = i2p::context.GetPrivateKeys (); - uint8_t * buf = m_ReceiveBuffer; - htobe16buf (buf, keys.GetPublic ()->GetFullLen ()); - buf += 2; - buf += i2p::context.GetIdentity ()->ToBuffer (buf, NTCP_BUFFER_SIZE); - uint32_t tsA = htobe32 (i2p::util::GetSecondsSinceEpoch ()); - htobuf32(buf,tsA); - buf += 4; - size_t signatureLen = keys.GetPublic ()->GetSignatureLen (); - size_t len = (buf - m_ReceiveBuffer) + signatureLen; - size_t paddingSize = len & 0x0F; // %16 - if (paddingSize > 0) - { - paddingSize = 16 - paddingSize; - // fill padding with random data - RAND_bytes(buf, paddingSize); - buf += paddingSize; - len += paddingSize; - } - - SignedData s; - s.Insert (m_Establisher->phase1.pubKey, 256); // x - s.Insert (m_Establisher->phase2.pubKey, 256); // y - s.Insert (m_RemoteIdentity->GetIdentHash (), 32); // ident - s.Insert (tsA); // tsA - s.Insert (m_Establisher->phase2.encrypted.timestamp, 4); // tsB - s.Sign (keys, buf); - - m_Encryption.Encrypt(m_ReceiveBuffer, len, m_ReceiveBuffer); - boost::asio::async_write (m_Socket, boost::asio::buffer (m_ReceiveBuffer, len), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase3Sent, shared_from_this (), std::placeholders::_1, std::placeholders::_2, tsA)); - } - - void NTCPSession::HandlePhase3Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsA) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Couldn't send Phase 3 message: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - // wait for phase4 - auto signatureLen = m_RemoteIdentity->GetSignatureLen (); - size_t paddingSize = signatureLen & 0x0F; // %16 - if (paddingSize > 0) signatureLen += (16 - paddingSize); - boost::asio::async_read (m_Socket, boost::asio::buffer(m_ReceiveBuffer, signatureLen), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase4Received, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, tsA)); - } - } - - void NTCPSession::HandlePhase3Received (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB) - { - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Phase 3 read error: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - m_Decryption.Decrypt (m_ReceiveBuffer, bytes_transferred, m_ReceiveBuffer); - uint8_t * buf = m_ReceiveBuffer; - uint16_t size = bufbe16toh (buf); - auto identity = std::make_shared (buf + 2, size); - if (m_Server.FindNTCPSession (identity->GetIdentHash ())) - { - LogPrint (eLogInfo, "NTCP: session already exists"); - Terminate (); - } - auto existing = i2p::data::netdb.FindRouter (identity->GetIdentHash ()); // check if exists already - SetRemoteIdentity (existing ? existing->GetRouterIdentity () : identity); - - size_t expectedSize = size + 2/*size*/ + 4/*timestamp*/ + m_RemoteIdentity->GetSignatureLen (); - size_t paddingLen = expectedSize & 0x0F; - if (paddingLen) paddingLen = (16 - paddingLen); - if (expectedSize > NTCP_DEFAULT_PHASE3_SIZE) - { - // we need more bytes for Phase3 - expectedSize += paddingLen; - boost::asio::async_read (m_Socket, boost::asio::buffer(m_ReceiveBuffer + NTCP_DEFAULT_PHASE3_SIZE, expectedSize - NTCP_DEFAULT_PHASE3_SIZE), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase3ExtraReceived, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, tsB, paddingLen)); - } - else - HandlePhase3 (tsB, paddingLen); - } - } - - void NTCPSession::HandlePhase3ExtraReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB, size_t paddingLen) - { - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Phase 3 extra read error: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - m_Decryption.Decrypt (m_ReceiveBuffer + NTCP_DEFAULT_PHASE3_SIZE, bytes_transferred, m_ReceiveBuffer+ NTCP_DEFAULT_PHASE3_SIZE); - HandlePhase3 (tsB, paddingLen); - } - } - - void NTCPSession::HandlePhase3 (uint32_t tsB, size_t paddingLen) - { - uint8_t * buf = m_ReceiveBuffer + m_RemoteIdentity->GetFullLen () + 2 /*size*/; - uint32_t tsA = buf32toh(buf); - buf += 4; - buf += paddingLen; - - // check timestamp - auto ts = i2p::util::GetSecondsSinceEpoch (); - uint32_t tsA1 = be32toh (tsA); - if (tsA1 < ts - NTCP_CLOCK_SKEW || tsA1 > ts + NTCP_CLOCK_SKEW) - { - LogPrint (eLogError, "NTCP: Phase3 time difference ", (int)(ts - tsA1), " exceeds clock skew"); - Terminate (); - return; - } - - // check signature - SignedData s; - s.Insert (m_Establisher->phase1.pubKey, 256); // x - s.Insert (m_Establisher->phase2.pubKey, 256); // y - s.Insert (i2p::context.GetRouterInfo ().GetIdentHash (), 32); // ident - s.Insert (tsA); // tsA - s.Insert (tsB); // tsB - if (!s.Verify (m_RemoteIdentity, buf)) - { - LogPrint (eLogError, "NTCP: signature verification failed"); - Terminate (); - return; - } - - SendPhase4 (tsA, tsB); - } - - void NTCPSession::SendPhase4 (uint32_t tsA, uint32_t tsB) - { - SignedData s; - s.Insert (m_Establisher->phase1.pubKey, 256); // x - s.Insert (m_Establisher->phase2.pubKey, 256); // y - s.Insert (m_RemoteIdentity->GetIdentHash (), 32); // ident - s.Insert (tsA); // tsA - s.Insert (tsB); // tsB - auto& keys = i2p::context.GetPrivateKeys (); - auto signatureLen = keys.GetPublic ()->GetSignatureLen (); - s.Sign (keys, m_ReceiveBuffer); - size_t paddingSize = signatureLen & 0x0F; // %16 - if (paddingSize > 0) signatureLen += (16 - paddingSize); - m_Encryption.Encrypt (m_ReceiveBuffer, signatureLen, m_ReceiveBuffer); - - boost::asio::async_write (m_Socket, boost::asio::buffer (m_ReceiveBuffer, signatureLen), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandlePhase4Sent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); - } - - void NTCPSession::HandlePhase4Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - (void) bytes_transferred; - if (ecode) - { - LogPrint (eLogWarning, "NTCP: Couldn't send Phase 4 message: ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - LogPrint (eLogDebug, "NTCP: Server session from ", m_Socket.remote_endpoint (), " connected"); - m_Server.AddNTCPSession (shared_from_this ()); - - Connected (); - m_ReceiveBufferOffset = 0; - m_NextMessage = nullptr; - Receive (); - } - } - - void NTCPSession::HandlePhase4Received (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsA) - { - if (ecode) - { - LogPrint (eLogError, "NTCP: Phase 4 read error: ", ecode.message (), ". Check your clock"); - if (ecode != boost::asio::error::operation_aborted) - { - // this router doesn't like us - i2p::data::netdb.SetUnreachable (GetRemoteIdentity ()->GetIdentHash (), true); - Terminate (); - } - } - else - { - m_Decryption.Decrypt(m_ReceiveBuffer, bytes_transferred, m_ReceiveBuffer); - - // check timestamp - uint32_t tsB = bufbe32toh (m_Establisher->phase2.encrypted.timestamp); - auto ts = i2p::util::GetSecondsSinceEpoch (); - if (tsB < ts - NTCP_CLOCK_SKEW || tsB > ts + NTCP_CLOCK_SKEW) - { - LogPrint (eLogError, "NTCP: Phase4 time difference ", (int)(ts - tsB), " exceeds clock skew"); - Terminate (); - return; - } - - // verify signature - SignedData s; - s.Insert (m_Establisher->phase1.pubKey, 256); // x - s.Insert (m_Establisher->phase2.pubKey, 256); // y - s.Insert (i2p::context.GetIdentHash (), 32); // ident - s.Insert (tsA); // tsA - s.Insert (m_Establisher->phase2.encrypted.timestamp, 4); // tsB - - if (!s.Verify (m_RemoteIdentity, m_ReceiveBuffer)) - { - LogPrint (eLogError, "NTCP: Phase 4 process error: signature verification failed"); - Terminate (); - return; - } - LogPrint (eLogDebug, "NTCP: session to ", m_Socket.remote_endpoint (), " connected"); - Connected (); - - m_ReceiveBufferOffset = 0; - m_NextMessage = nullptr; - Receive (); - } - } - - void NTCPSession::Receive () - { - m_Socket.async_read_some (boost::asio::buffer(m_ReceiveBuffer + m_ReceiveBufferOffset, NTCP_BUFFER_SIZE - m_ReceiveBufferOffset), - std::bind(&NTCPSession::HandleReceived, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); - } - - void NTCPSession::HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - if (ecode) - { - if (ecode != boost::asio::error::operation_aborted) - LogPrint (eLogDebug, "NTCP: Read error: ", ecode.message ()); - //if (ecode != boost::asio::error::operation_aborted) - Terminate (); - } - else - { - m_NumReceivedBytes += bytes_transferred; - i2p::transport::transports.UpdateReceivedBytes (bytes_transferred); - m_ReceiveBufferOffset += bytes_transferred; - - if (m_ReceiveBufferOffset >= 16) - { - // process received data - uint8_t * nextBlock = m_ReceiveBuffer; - while (m_ReceiveBufferOffset >= 16) - { - if (!DecryptNextBlock (nextBlock)) // 16 bytes - { - Terminate (); - return; - } - nextBlock += 16; - m_ReceiveBufferOffset -= 16; - } - if (m_ReceiveBufferOffset > 0) - memcpy (m_ReceiveBuffer, nextBlock, m_ReceiveBufferOffset); - } - - // read and process more is available - boost::system::error_code ec; - size_t moreBytes = m_Socket.available(ec); - if (moreBytes && !ec) - { - uint8_t * buf = nullptr, * moreBuf = m_ReceiveBuffer; - if (moreBytes + m_ReceiveBufferOffset > NTCP_BUFFER_SIZE) - { - buf = new uint8_t[moreBytes + m_ReceiveBufferOffset + 16]; - moreBuf = buf; - uint8_t rem = ((size_t)buf) & 0x0f; - if (rem) moreBuf += (16 - rem); // align 16 - if (m_ReceiveBufferOffset) - memcpy (moreBuf, m_ReceiveBuffer, m_ReceiveBufferOffset); - } - moreBytes = m_Socket.read_some (boost::asio::buffer (moreBuf + m_ReceiveBufferOffset, moreBytes), ec); - if (ec) - { - LogPrint (eLogInfo, "NTCP: Read more bytes error: ", ec.message ()); - delete[] buf; - Terminate (); - return; - } - m_ReceiveBufferOffset += moreBytes; - m_NumReceivedBytes += moreBytes; - i2p::transport::transports.UpdateReceivedBytes (moreBytes); - // process more data - uint8_t * nextBlock = moreBuf; - while (m_ReceiveBufferOffset >= 16) - { - if (!DecryptNextBlock (nextBlock)) // 16 bytes - { - delete[] buf; - Terminate (); - return; - } - nextBlock += 16; - m_ReceiveBufferOffset -= 16; - } - if (m_ReceiveBufferOffset > 0) - memcpy (m_ReceiveBuffer, nextBlock, m_ReceiveBufferOffset); // nextBlock points to memory inside buf - delete[] buf; - } - m_Handler.Flush (); - - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - Receive (); - } - } - - bool NTCPSession::DecryptNextBlock (const uint8_t * encrypted) // 16 bytes - { - if (!m_NextMessage) // new message, header expected - { - // decrypt header and extract length - uint8_t buf[16]; - m_Decryption.Decrypt (encrypted, buf); - uint16_t dataSize = bufbe16toh (buf); - if (dataSize) - { - // new message - if (dataSize + 16U + 15U > NTCP_MAX_MESSAGE_SIZE - 2) // + 6 + padding - { - LogPrint (eLogError, "NTCP: data size ", dataSize, " exceeds max size"); - return false; - } - m_NextMessage = (dataSize + 16U + 15U) <= I2NP_MAX_SHORT_MESSAGE_SIZE - 2 ? NewI2NPShortMessage () : NewI2NPMessage (); - m_NextMessage->Align (16); - m_NextMessage->offset += 2; // size field - m_NextMessage->len = m_NextMessage->offset + dataSize; - memcpy (m_NextMessage->GetBuffer () - 2, buf, 16); - m_NextMessageOffset = 16; - } - else - { - // timestamp - int diff = (int)bufbe32toh (buf + 2) - (int)i2p::util::GetSecondsSinceEpoch (); - LogPrint (eLogInfo, "NTCP: Timestamp. Time difference ", diff, " seconds"); - return true; - } - } - else // message continues - { - m_Decryption.Decrypt (encrypted, m_NextMessage->GetBuffer () - 2 + m_NextMessageOffset); - m_NextMessageOffset += 16; - } - - if (m_NextMessageOffset >= m_NextMessage->GetLength () + 2 + 4) // +checksum - { - // we have a complete I2NP message - uint8_t checksum[4]; - htobe32buf (checksum, adler32 (adler32 (0, Z_NULL, 0), m_NextMessage->GetBuffer () - 2, m_NextMessageOffset - 4)); - if (!memcmp (m_NextMessage->GetBuffer () - 2 + m_NextMessageOffset - 4, checksum, 4)) - { - if (!m_NextMessage->IsExpired ()) - { -#ifdef WITH_EVENTS - QueueIntEvent("transport.recvmsg", GetIdentHashBase64(), 1); -#endif - m_Handler.PutNextMessage (m_NextMessage); - } - else - LogPrint (eLogInfo, "NTCP: message expired"); - } - else - LogPrint (eLogWarning, "NTCP: Incorrect adler checksum of message, dropped"); - m_NextMessage = nullptr; - } - return true; - } - - void NTCPSession::Send (std::shared_ptr msg) - { - m_IsSending = true; - boost::asio::async_write (m_Socket, CreateMsgBuffer (msg), boost::asio::transfer_all (), - std::bind(&NTCPSession::HandleSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2, std::vector >{ msg })); - } - - boost::asio::const_buffers_1 NTCPSession::CreateMsgBuffer (std::shared_ptr msg) - { - uint8_t * sendBuffer; - int len; - - if (msg) - { - // regular I2NP - if (msg->offset < 2) - LogPrint (eLogError, "NTCP: Malformed I2NP message"); // TODO: - sendBuffer = msg->GetBuffer () - 2; - len = msg->GetLength (); - htobe16buf (sendBuffer, len); - } - else - { - // prepare timestamp - sendBuffer = m_TimeSyncBuffer; - len = 4; - htobuf16(sendBuffer, 0); - htobe32buf (sendBuffer + 2, i2p::util::GetSecondsSinceEpoch ()); - } - int rem = (len + 6) & 0x0F; // %16 - int padding = 0; - if (rem > 0) { - padding = 16 - rem; - // fill with random padding - RAND_bytes(sendBuffer + len + 2, padding); - } - htobe32buf (sendBuffer + len + 2 + padding, adler32 (adler32 (0, Z_NULL, 0), sendBuffer, len + 2+ padding)); - - int l = len + padding + 6; - m_Encryption.Encrypt(sendBuffer, l, sendBuffer); - return boost::asio::buffer ((const uint8_t *)sendBuffer, l); - } - - - void NTCPSession::Send (const std::vector >& msgs) - { - m_IsSending = true; - std::vector bufs; - for (const auto& it: msgs) - bufs.push_back (CreateMsgBuffer (it)); - boost::asio::async_write (m_Socket, bufs, boost::asio::transfer_all (), - std::bind(&NTCPSession::HandleSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2, msgs)); - } - - void NTCPSession::HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, std::vector > msgs) - { - (void) msgs; - m_IsSending = false; - if (ecode) - { - LogPrint (eLogWarning, "NTCP: Couldn't send msgs: ", ecode.message ()); - // we shouldn't call Terminate () here, because HandleReceive takes care - // TODO: 'delete this' statement in Terminate () must be eliminated later - // Terminate (); - } - else - { - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - m_NumSentBytes += bytes_transferred; - i2p::transport::transports.UpdateSentBytes (bytes_transferred); - if (!m_SendQueue.empty()) - { - Send (m_SendQueue); - m_SendQueue.clear (); - } - } - } - - - void NTCPSession::SendTimeSyncMessage () - { - Send (nullptr); - } - - - void NTCPSession::SendI2NPMessages (const std::vector >& msgs) - { - m_Server.GetService ().post (std::bind (&NTCPSession::PostI2NPMessages, shared_from_this (), msgs)); - } - - void NTCPSession::PostI2NPMessages (std::vector > msgs) - { - if (m_IsTerminated) return; - if (m_IsSending) - { - if (m_SendQueue.size () < NTCP_MAX_OUTGOING_QUEUE_SIZE) - { - for (const auto& it: msgs) - m_SendQueue.push_back (it); - } - else - { - LogPrint (eLogWarning, "NTCP: outgoing messages queue size exceeds ", NTCP_MAX_OUTGOING_QUEUE_SIZE); - Terminate (); - } - } - else - Send (msgs); - } - -//----------------------------------------- - NTCPServer::NTCPServer (int workers): - m_IsRunning (false), m_Thread (nullptr), m_Work (m_Service), - m_TerminationTimer (m_Service), m_NTCPAcceptor (nullptr), m_NTCPV6Acceptor (nullptr), - m_ProxyType(eNoProxy), m_Resolver(m_Service), m_ProxyEndpoint(nullptr), - m_SoftLimit(0), m_HardLimit(0) - { - if(workers <= 0) workers = 1; - m_CryptoPool = std::make_shared(workers); - } - - NTCPServer::~NTCPServer () - { - Stop (); - } - - void NTCPServer::Start () - { - if (!m_IsRunning) - { - m_IsRunning = true; - m_Thread = new std::thread (std::bind (&NTCPServer::Run, this)); - // we are using a proxy, don't create any acceptors - if(UsingProxy()) - { - // TODO: resolve proxy until it is resolved - boost::asio::ip::tcp::resolver::query q(m_ProxyAddress, std::to_string(m_ProxyPort)); - boost::system::error_code e; - auto itr = m_Resolver.resolve(q, e); - if(e) - { - LogPrint(eLogError, "NTCP: Failed to resolve proxy ", e.message()); - } - else - { - m_ProxyEndpoint = new boost::asio::ip::tcp::endpoint(*itr); - } - } - else - { - // create acceptors - auto& addresses = context.GetRouterInfo ().GetAddresses (); - for (const auto& address: addresses) - { - if (!address) continue; - if (address->transportStyle == i2p::data::RouterInfo::eTransportNTCP && !address->IsNTCP2 ()) - { - if (address->host.is_v4()) - { - try - { - m_NTCPAcceptor = new boost::asio::ip::tcp::acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), address->port)); - } catch ( std::exception & ex ) { - /** fail to bind ip4 */ - LogPrint(eLogError, "NTCP: Failed to bind to ip4 port ",address->port, ex.what()); - continue; - } - - LogPrint (eLogInfo, "NTCP: Start listening TCP port ", address->port); - auto conn = std::make_shared(*this); - m_NTCPAcceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAccept, this, conn, std::placeholders::_1)); - } - else if (address->host.is_v6() && context.SupportsV6 ()) - { - m_NTCPV6Acceptor = new boost::asio::ip::tcp::acceptor (m_Service); - try - { - m_NTCPV6Acceptor->open (boost::asio::ip::tcp::v6()); - m_NTCPV6Acceptor->set_option (boost::asio::ip::v6_only (true)); - m_NTCPV6Acceptor->set_option (boost::asio::socket_base::reuse_address (true)); - m_NTCPV6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address->port)); - m_NTCPV6Acceptor->listen (); - - LogPrint (eLogInfo, "NTCP: Start listening V6 TCP port ", address->port); - auto conn = std::make_shared (*this); - m_NTCPV6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAcceptV6, this, conn, std::placeholders::_1)); - } catch ( std::exception & ex ) { - LogPrint(eLogError, "NTCP: failed to bind to ip6 port ", address->port); - continue; - } - } - } - } - } - ScheduleTermination (); - } - } - - void NTCPServer::Stop () - { - { - // we have to copy it because Terminate changes m_NTCPSessions - auto ntcpSessions = m_NTCPSessions; - for (auto& it: ntcpSessions) - it.second->Terminate (); - for (auto& it: m_PendingIncomingSessions) - it->Terminate (); - } - m_NTCPSessions.clear (); - - if (m_IsRunning) - { - m_IsRunning = false; - m_TerminationTimer.cancel (); - if (m_NTCPAcceptor) - { - delete m_NTCPAcceptor; - m_NTCPAcceptor = nullptr; - } - if (m_NTCPV6Acceptor) - { - delete m_NTCPV6Acceptor; - m_NTCPV6Acceptor = nullptr; - } - m_Service.stop (); - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } - if(m_ProxyEndpoint) - { - delete m_ProxyEndpoint; - m_ProxyEndpoint = nullptr; - } - } - } - - - void NTCPServer::Run () - { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "NTCP: runtime exception: ", ex.what ()); - } - } - } - - bool NTCPServer::AddNTCPSession (std::shared_ptr session) - { - if (!session || !session->GetRemoteIdentity ()) return false; - auto& ident = session->GetRemoteIdentity ()->GetIdentHash (); - auto it = m_NTCPSessions.find (ident); - if (it != m_NTCPSessions.end ()) - { - LogPrint (eLogWarning, "NTCP: session to ", ident.ToBase64 (), " already exists"); - session->Terminate(); - return false; - } - m_NTCPSessions.insert (std::pair >(ident, session)); - return true; - } - - void NTCPServer::RemoveNTCPSession (std::shared_ptr session) - { - if (session && session->GetRemoteIdentity ()) - m_NTCPSessions.erase (session->GetRemoteIdentity ()->GetIdentHash ()); - } - - std::shared_ptr NTCPServer::FindNTCPSession (const i2p::data::IdentHash& ident) - { - auto it = m_NTCPSessions.find (ident); - if (it != m_NTCPSessions.end ()) - return it->second; - return nullptr; - } - - void NTCPServer::HandleAccept (std::shared_ptr conn, const boost::system::error_code& error) - { - if (!error) - { - boost::system::error_code ec; - auto ep = conn->GetSocket ().remote_endpoint(ec); - if (!ec) - { - if(ShouldLimit()) - { - // hit limit, close premature - LogPrint(eLogWarning, "NTCP: limiting with backoff session from ", ep); - conn->Terminate(); - return; - } - LogPrint (eLogDebug, "NTCP: Connected from ", ep); - if (conn) - { - conn->ServerLogin (); - m_PendingIncomingSessions.push_back (conn); - } - } - else - LogPrint (eLogError, "NTCP: Connected from error ", ec.message ()); - } - - - if (error != boost::asio::error::operation_aborted) - { - conn = std::make_shared (*this); - m_NTCPAcceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAccept, this, - conn, std::placeholders::_1)); - } - } - - void NTCPServer::HandleAcceptV6 (std::shared_ptr conn, const boost::system::error_code& error) - { - if (!error) - { - boost::system::error_code ec; - auto ep = conn->GetSocket ().remote_endpoint(ec); - if (!ec) - { - if(ShouldLimit()) - { - // hit limit, close premature - LogPrint(eLogWarning, "NTCP: limiting with backoff on session from ", ep); - conn->Terminate(); - return; - } - - LogPrint (eLogDebug, "NTCP: Connected from ", ep); - if (conn) - { - conn->ServerLogin (); - m_PendingIncomingSessions.push_back (conn); - } - } - else - LogPrint (eLogError, "NTCP: Connected from error ", ec.message ()); - } - - if (error != boost::asio::error::operation_aborted) - { - conn = std::make_shared (*this); - m_NTCPV6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCPServer::HandleAcceptV6, this, - conn, std::placeholders::_1)); - } - } - - void NTCPServer::Connect(const boost::asio::ip::address & address, uint16_t port, std::shared_ptr conn) - { - LogPrint (eLogDebug, "NTCP: Connecting to ", address ,":", port); - m_Service.post([=]() { - if (this->AddNTCPSession (conn)) - { - - auto timer = std::make_shared(m_Service); - timer->expires_from_now (boost::posix_time::seconds(NTCP_CONNECT_TIMEOUT)); - timer->async_wait ([conn](const boost::system::error_code& ecode) { - if (ecode != boost::asio::error::operation_aborted) - { - LogPrint (eLogInfo, "NTCP: Not connected in ", NTCP_CONNECT_TIMEOUT, " seconds"); - conn->Terminate (); - } - }); - conn->GetSocket ().async_connect (boost::asio::ip::tcp::endpoint (address, port), std::bind (&NTCPServer::HandleConnect, this, std::placeholders::_1, conn, timer)); - } - }); - } - - void NTCPServer::ConnectWithProxy (const std::string& host, uint16_t port, RemoteAddressType addrtype, std::shared_ptr conn) - { - if(m_ProxyEndpoint == nullptr) - { - return; - } - m_Service.post([=]() { - if (this->AddNTCPSession (conn)) - { - - auto timer = std::make_shared(m_Service); - auto timeout = NTCP_CONNECT_TIMEOUT * 5; - conn->SetTerminationTimeout(timeout * 2); - timer->expires_from_now (boost::posix_time::seconds(timeout)); - timer->async_wait ([conn, timeout](const boost::system::error_code& ecode) { - if (ecode != boost::asio::error::operation_aborted) - { - LogPrint (eLogInfo, "NTCP: Not connected in ", timeout, " seconds"); - i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ()->GetIdentHash (), true); - conn->Terminate (); - } - }); - conn->GetSocket ().async_connect (*m_ProxyEndpoint, std::bind (&NTCPServer::HandleProxyConnect, this, std::placeholders::_1, conn, timer, host, port, addrtype)); - } - }); - } - - void NTCPServer::HandleConnect (const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer) - { - timer->cancel (); - if (ecode) - { - LogPrint (eLogInfo, "NTCP: Connect error ", ecode.message ()); - if (ecode != boost::asio::error::operation_aborted) - i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ()->GetIdentHash (), true); - conn->Terminate (); - } - else - { - LogPrint (eLogDebug, "NTCP: Connected to ", conn->GetSocket ().remote_endpoint ()); - if (conn->GetSocket ().local_endpoint ().protocol () == boost::asio::ip::tcp::v6()) // ipv6 - context.UpdateNTCPV6Address (conn->GetSocket ().local_endpoint ().address ()); - conn->ClientLogin (); - } - } - - void NTCPServer::UseProxy(ProxyType proxytype, const std::string & addr, uint16_t port) - { - m_ProxyType = proxytype; - m_ProxyAddress = addr; - m_ProxyPort = port; - } - - void NTCPServer::HandleProxyConnect(const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer, const std::string & host, uint16_t port, RemoteAddressType addrtype) - { - if(ecode) - { - LogPrint(eLogWarning, "NTCP: failed to connect to proxy ", ecode.message()); - timer->cancel(); - conn->Terminate(); - return; - } - if(m_ProxyType == eSocksProxy) - { - // TODO: support username/password auth etc - uint8_t buff[3] = {0x05, 0x01, 0x00}; - boost::asio::async_write(conn->GetSocket(), boost::asio::buffer(buff, 3), boost::asio::transfer_all(), [=] (const boost::system::error_code & ec, std::size_t transferred) { - (void) transferred; - if(ec) - { - LogPrint(eLogWarning, "NTCP: socks5 write error ", ec.message()); - } - }); - uint8_t readbuff[2]; - boost::asio::async_read(conn->GetSocket(), boost::asio::buffer(readbuff, 2), [=](const boost::system::error_code & ec, std::size_t transferred) { - if(ec) - { - LogPrint(eLogError, "NTCP: socks5 read error ", ec.message()); - timer->cancel(); - conn->Terminate(); - return; - } - else if(transferred == 2) - { - if(readbuff[1] == 0x00) - { - AfterSocksHandshake(conn, timer, host, port, addrtype); - return; - } - else if (readbuff[1] == 0xff) - { - LogPrint(eLogError, "NTCP: socks5 proxy rejected authentication"); - timer->cancel(); - conn->Terminate(); - return; - } - } - LogPrint(eLogError, "NTCP: socks5 server gave invalid response"); - timer->cancel(); - conn->Terminate(); - }); - } - else if(m_ProxyType == eHTTPProxy) - { - i2p::http::HTTPReq req; - req.method = "CONNECT"; - req.version ="HTTP/1.1"; - if(addrtype == eIP6Address) - req.uri = "[" + host + "]:" + std::to_string(port); - else - req.uri = host + ":" + std::to_string(port); - - boost::asio::streambuf writebuff; - std::ostream out(&writebuff); - out << req.to_string(); - - boost::asio::async_write(conn->GetSocket(), writebuff.data(), boost::asio::transfer_all(), [=](const boost::system::error_code & ec, std::size_t transferred) { - (void) transferred; - if(ec) - LogPrint(eLogError, "NTCP: http proxy write error ", ec.message()); - }); - - boost::asio::streambuf * readbuff = new boost::asio::streambuf; - boost::asio::async_read_until(conn->GetSocket(), *readbuff, "\r\n\r\n", [=] (const boost::system::error_code & ec, std::size_t transferred) { - if(ec) - { - LogPrint(eLogError, "NTCP: http proxy read error ", ec.message()); - timer->cancel(); - conn->Terminate(); - } - else - { - readbuff->commit(transferred); - i2p::http::HTTPRes res; - if(res.parse(boost::asio::buffer_cast(readbuff->data()), readbuff->size()) > 0) - { - if(res.code == 200) - { - timer->cancel(); - conn->ClientLogin(); - delete readbuff; - return; - } - else - { - LogPrint(eLogError, "NTCP: http proxy rejected request ", res.code); - } - } - else - LogPrint(eLogError, "NTCP: http proxy gave malformed response"); - timer->cancel(); - conn->Terminate(); - delete readbuff; - } - }); - } - else - LogPrint(eLogError, "NTCP: unknown proxy type, invalid state"); - } - - void NTCPServer::AfterSocksHandshake(std::shared_ptr conn, std::shared_ptr timer, const std::string & host, uint16_t port, RemoteAddressType addrtype) - { - - // build request - size_t sz = 0; - uint8_t buff[256]; - uint8_t readbuff[256]; - buff[0] = 0x05; - buff[1] = 0x01; - buff[2] = 0x00; - - if(addrtype == eIP4Address) - { - buff[3] = 0x01; - auto addr = boost::asio::ip::address::from_string(host).to_v4(); - auto addrbytes = addr.to_bytes(); - auto addrsize = addrbytes.size(); - memcpy(buff+4, addrbytes.data(), addrsize); - } - else if (addrtype == eIP6Address) - { - buff[3] = 0x04; - auto addr = boost::asio::ip::address::from_string(host).to_v6(); - auto addrbytes = addr.to_bytes(); - auto addrsize = addrbytes.size(); - memcpy(buff+4, addrbytes.data(), addrsize); - } - else if (addrtype == eHostname) - { - buff[3] = 0x03; - size_t addrsize = host.size(); - sz = addrsize + 1 + 4; - if (2 + sz > sizeof(buff)) - { - // too big - return; - } - buff[4] = (uint8_t) addrsize; - memcpy(buff+5, host.c_str(), addrsize); - } - htobe16buf(buff+sz, port); - sz += 2; - boost::asio::async_write(conn->GetSocket(), boost::asio::buffer(buff, sz), boost::asio::transfer_all(), [=](const boost::system::error_code & ec, std::size_t written) { - if(ec) - { - LogPrint(eLogError, "NTCP: failed to write handshake to socks proxy ", ec.message()); - return; - } - }); - - boost::asio::async_read(conn->GetSocket(), boost::asio::buffer(readbuff, 10), [=](const boost::system::error_code & e, std::size_t transferred) { - if(e) - { - LogPrint(eLogError, "NTCP: socks proxy read error ", e.message()); - } - else if(transferred == sz) - { - if( readbuff[1] == 0x00) - { - timer->cancel(); - conn->ClientLogin(); - return; - } - } - if(!e) - i2p::data::netdb.SetUnreachable (conn->GetRemoteIdentity ()->GetIdentHash (), true); - timer->cancel(); - conn->Terminate(); - }); - } - - void NTCPServer::ScheduleTermination () - { - m_TerminationTimer.expires_from_now (boost::posix_time::seconds(NTCP_TERMINATION_CHECK_TIMEOUT)); - m_TerminationTimer.async_wait (std::bind (&NTCPServer::HandleTerminationTimer, - this, std::placeholders::_1)); - } - - void NTCPServer::HandleTerminationTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - auto ts = i2p::util::GetSecondsSinceEpoch (); - // established - for (auto& it: m_NTCPSessions) - if (it.second->IsTerminationTimeoutExpired (ts)) - { - auto session = it.second; - // Terminate modifies m_NTCPSession, so we postpone it - m_Service.post ([session] { - LogPrint (eLogDebug, "NTCP: No activity for ", session->GetTerminationTimeout (), " seconds"); - session->Terminate (); - }); - } - // pending - for (auto it = m_PendingIncomingSessions.begin (); it != m_PendingIncomingSessions.end ();) - { - if ((*it)->IsEstablished () || (*it)->IsTerminated ()) - it = m_PendingIncomingSessions.erase (it); // established or terminated - else if ((*it)->IsTerminationTimeoutExpired (ts)) - { - (*it)->Terminate (); - it = m_PendingIncomingSessions.erase (it); // expired - } - else - it++; - } - - ScheduleTermination (); - } - } -} -} diff --git a/libi2pd/NTCPSession.h b/libi2pd/NTCPSession.h deleted file mode 100644 index e2207eb7..00000000 --- a/libi2pd/NTCPSession.h +++ /dev/null @@ -1,234 +0,0 @@ -#ifndef NTCP_SESSION_H__ -#define NTCP_SESSION_H__ - -#include -#include -#include -#include -#include -#include -#include "Crypto.h" -#include "Identity.h" -#include "RouterInfo.h" -#include "I2NPProtocol.h" -#include "TransportSession.h" -#include "CryptoWorker.h" - -namespace i2p -{ -namespace transport -{ - struct NTCPPhase1 - { - uint8_t pubKey[256]; - uint8_t HXxorHI[32]; - }; - - struct NTCPPhase2 - { - uint8_t pubKey[256]; - struct - { - uint8_t hxy[32]; - uint8_t timestamp[4]; - uint8_t filler[12]; - } encrypted; - }; - - struct NTCPWork; - - const size_t NTCP_MAX_MESSAGE_SIZE = 16384; - const size_t NTCP_BUFFER_SIZE = 1028; // fits 1 tunnel data message - const int NTCP_CONNECT_TIMEOUT = 5; // 5 seconds - const int NTCP_ESTABLISH_TIMEOUT = 10; // 10 seconds - const int NTCP_TERMINATION_TIMEOUT = 120; // 2 minutes - const int NTCP_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds - const size_t NTCP_DEFAULT_PHASE3_SIZE = 2/*size*/ + i2p::data::DEFAULT_IDENTITY_SIZE/*387*/ + 4/*ts*/ + 15/*padding*/ + 40/*signature*/; // 448 - const int NTCP_CLOCK_SKEW = 60; // in seconds - const int NTCP_MAX_OUTGOING_QUEUE_SIZE = 200; // how many messages we can queue up - - class NTCPServer; - class NTCPSession: public TransportSession, public std::enable_shared_from_this - { - public: - - NTCPSession (NTCPServer& server, std::shared_ptr in_RemoteRouter = nullptr); - ~NTCPSession (); - void Terminate (); - void Done (); - - boost::asio::ip::tcp::socket& GetSocket () { return m_Socket; }; - boost::asio::io_service & GetService(); - bool IsEstablished () const { return m_IsEstablished; }; - bool IsTerminated () const { return m_IsTerminated; }; - - void ClientLogin (); - void ServerLogin (); - void SendI2NPMessages (const std::vector >& msgs); - - private: - - void PostI2NPMessages (std::vector > msgs); - void Connected (); - void SendTimeSyncMessage (); - void SetIsEstablished (bool isEstablished) { m_IsEstablished = isEstablished; } - - void CreateAESKey (uint8_t * pubKey); - - // client - void SendPhase3 (); - void HandlePhase1Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void HandlePhase2Received (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void HandlePhase2 (NTCPWork * work=nullptr); - void HandlePhase3Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsA); - void HandlePhase4Received (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsA); - - //server - void SendPhase2 (NTCPWork * work=nullptr); - void SendPhase4 (uint32_t tsA, uint32_t tsB); - void HandlePhase1Received (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void HandlePhase2Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB); - void HandlePhase3Received (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB); - void HandlePhase3ExtraReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred, uint32_t tsB, size_t paddingLen); - void HandlePhase3 (uint32_t tsB, size_t paddingLen); - void HandlePhase4Sent (const boost::system::error_code& ecode, std::size_t bytes_transferred); - - // common - void Receive (); - void HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); - bool DecryptNextBlock (const uint8_t * encrypted); - - void Send (std::shared_ptr msg); - boost::asio::const_buffers_1 CreateMsgBuffer (std::shared_ptr msg); - void Send (const std::vector >& msgs); - void HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, std::vector > msgs); - - private: - - NTCPServer& m_Server; - boost::asio::ip::tcp::socket m_Socket; - bool m_IsEstablished, m_IsTerminated; - - i2p::crypto::CBCDecryption m_Decryption; - i2p::crypto::CBCEncryption m_Encryption; - - struct Establisher - { - NTCPPhase1 phase1; - NTCPPhase2 phase2; - } * m_Establisher; - - i2p::crypto::AESAlignedBuffer m_ReceiveBuffer; - i2p::crypto::AESAlignedBuffer<16> m_TimeSyncBuffer; - int m_ReceiveBufferOffset; - - std::shared_ptr m_NextMessage; - size_t m_NextMessageOffset; - i2p::I2NPMessagesHandler m_Handler; - - bool m_IsSending; - std::vector > m_SendQueue; - }; - - // TODO: move to NTCP.h/.cpp - class NTCPServer - { - public: - - typedef i2p::worker::ThreadPool Pool; - - enum RemoteAddressType - { - eIP4Address, - eIP6Address, - eHostname - }; - - enum ProxyType - { - eNoProxy, - eSocksProxy, - eHTTPProxy - }; - - - NTCPServer (int workers=4); - ~NTCPServer (); - - void Start (); - void Stop (); - - bool AddNTCPSession (std::shared_ptr session); - void RemoveNTCPSession (std::shared_ptr session); - std::shared_ptr FindNTCPSession (const i2p::data::IdentHash& ident); - void ConnectWithProxy (const std::string& addr, uint16_t port, RemoteAddressType addrtype, std::shared_ptr conn); - void Connect(const boost::asio::ip::address & address, uint16_t port, std::shared_ptr conn); - - bool IsBoundV4() const { return m_NTCPAcceptor != nullptr; }; - bool IsBoundV6() const { return m_NTCPV6Acceptor != nullptr; }; - bool NetworkIsReady() const { return IsBoundV4() || IsBoundV6() || UsingProxy(); }; - bool UsingProxy() const { return m_ProxyType != eNoProxy; }; - - void UseProxy(ProxyType proxy, const std::string & address, uint16_t port); - - boost::asio::io_service& GetService () { return m_Service; }; - - void SetSessionLimits(uint16_t softLimit, uint16_t hardLimit) { m_SoftLimit = softLimit; m_HardLimit = hardLimit; } - bool ShouldLimit() const { return ShouldHardLimit() || ShouldSoftLimit(); } - void Work(std::shared_ptr conn, Pool::WorkFunc work) - { - m_CryptoPool->Offer({conn, work}); - } - private: - - /** @brief return true for hard limit */ - bool ShouldHardLimit() const { return m_HardLimit && m_NTCPSessions.size() >= m_HardLimit; } - - /** @brief return true for probabalistic soft backoff */ - bool ShouldSoftLimit() const - { - auto sessions = m_NTCPSessions.size(); - return sessions && m_SoftLimit && m_SoftLimit < sessions && ( rand() % sessions ) <= m_SoftLimit; - } - void Run (); - void HandleAccept (std::shared_ptr conn, const boost::system::error_code& error); - void HandleAcceptV6 (std::shared_ptr conn, const boost::system::error_code& error); - - void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer); - - void HandleProxyConnect(const boost::system::error_code& ecode, std::shared_ptr conn, std::shared_ptr timer, const std::string & host, uint16_t port, RemoteAddressType adddrtype); - void AfterSocksHandshake(std::shared_ptr conn, std::shared_ptr timer, const std::string & host, uint16_t port, RemoteAddressType adddrtype); - - // timer - void ScheduleTermination (); - void HandleTerminationTimer (const boost::system::error_code& ecode); - - private: - - bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; - boost::asio::io_service::work m_Work; - boost::asio::deadline_timer m_TerminationTimer; - boost::asio::ip::tcp::acceptor * m_NTCPAcceptor, * m_NTCPV6Acceptor; - std::map > m_NTCPSessions; // access from m_Thread only - std::list > m_PendingIncomingSessions; - - ProxyType m_ProxyType; - std::string m_ProxyAddress; - uint16_t m_ProxyPort; - boost::asio::ip::tcp::resolver m_Resolver; - boost::asio::ip::tcp::endpoint * m_ProxyEndpoint; - - std::shared_ptr m_CryptoPool; - - uint16_t m_SoftLimit, m_HardLimit; - public: - - // for HTTP/I2PControl - const decltype(m_NTCPSessions)& GetNTCPSessions () const { return m_NTCPSessions; }; - }; -} -} - -#endif diff --git a/libi2pd/NetDb.cpp b/libi2pd/NetDb.cpp index 02ae2ae8..e53738e5 100644 --- a/libi2pd/NetDb.cpp +++ b/libi2pd/NetDb.cpp @@ -1,6 +1,15 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include +#include #include #include @@ -15,8 +24,10 @@ #include "NTCP2.h" #include "RouterContext.h" #include "Garlic.h" -#include "NetDb.hpp" +#include "ECIESX25519AEADRatchetSession.h" #include "Config.h" +#include "NetDb.hpp" +#include "util.h" using namespace i2p::transport; @@ -26,7 +37,9 @@ namespace data { NetDb netdb; - NetDb::NetDb (): m_IsRunning (false), m_Thread (nullptr), m_Reseeder (nullptr), m_Storage("netDb", "r", "routerInfo-", "dat"), m_PersistProfiles (true), m_HiddenMode(false) + NetDb::NetDb (): m_IsRunning (false), m_Thread (nullptr), m_Reseeder (nullptr), + m_Storage("netDb", "r", "routerInfo-", "dat"), m_PersistProfiles (true), + m_LastExploratorySelectionUpdateTime (0), m_Rng(i2p::util::GetMonotonicMicroseconds () % 1000000LL) { } @@ -44,26 +57,49 @@ namespace data m_Families.LoadCertificates (); Load (); + if (!m_Requests) + { + m_Requests = std::make_shared(); + m_Requests->Start (); + } + uint16_t threshold; i2p::config::GetOption("reseed.threshold", threshold); - if (m_RouterInfos.size () < threshold) // reseed if # of router less than threshold + if (m_RouterInfos.size () < threshold || m_Floodfills.GetSize () < NETDB_MIN_FLOODFILLS) // reseed if # of router less than threshold or too few floodfiils + { Reseed (); + } + else if (!GetRandomRouter (i2p::context.GetSharedRouterInfo (), false, false, false)) + Reseed (); // we don't have a router we can connect to. Trying to reseed + + auto it = m_RouterInfos.find (i2p::context.GetIdentHash ()); + if (it != m_RouterInfos.end ()) + { + // remove own router + m_Floodfills.Remove (it->second->GetIdentHash ()); + m_RouterInfos.erase (it); + } + // insert own router + m_RouterInfos.emplace (i2p::context.GetIdentHash (), i2p::context.GetSharedRouterInfo ()); + if (i2p::context.IsFloodfill ()) + m_Floodfills.Insert (i2p::context.GetSharedRouterInfo ()); i2p::config::GetOption("persist.profiles", m_PersistProfiles); - + m_IsRunning = true; m_Thread = new std::thread (std::bind (&NetDb::Run, this)); } void NetDb::Stop () { + if (m_Requests) + m_Requests->Stop (); if (m_IsRunning) { if (m_PersistProfiles) - for (auto& it: m_RouterInfos) - it.second->SaveProfile (); + SaveProfiles (); DeleteObsoleteProfiles (); m_RouterInfos.clear (); - m_Floodfills.clear (); + m_Floodfills.Clear (); if (m_Thread) { m_IsRunning = false; @@ -73,114 +109,121 @@ namespace data m_Thread = 0; } m_LeaseSets.clear(); - m_Requests.Stop (); } + m_Requests = nullptr; } void NetDb::Run () { - uint32_t lastSave = 0, lastPublish = 0, lastExploratory = 0, lastManageRequest = 0, lastDestinationCleanup = 0; + i2p::util::SetThreadName("NetDB"); + + uint64_t lastManage = 0; + uint64_t lastProfilesCleanup = i2p::util::GetMonotonicMilliseconds (), + lastObsoleteProfilesCleanup = lastProfilesCleanup, lastApplyingProfileUpdates = lastProfilesCleanup; + int16_t profilesCleanupVariance = 0, obsoleteProfilesCleanVariance = 0, applyingProfileUpdatesVariance = 0; + + std::list > msgs; while (m_IsRunning) { try { - auto msg = m_Queue.GetNextWithTimeout (15000); // 15 sec - if (msg) + if (m_Queue.Wait (1,0)) // 1 sec { - int numMsgs = 0; - while (msg) + m_Queue.GetWholeQueue (msgs); + while (!msgs.empty ()) { - LogPrint(eLogDebug, "NetDb: got request with type ", (int) msg->GetTypeID ()); + auto msg = msgs.front (); msgs.pop_front (); + if (!msg) continue; + LogPrint(eLogDebug, "NetDb: Got request with type ", (int) msg->GetTypeID ()); switch (msg->GetTypeID ()) { case eI2NPDatabaseStore: HandleDatabaseStoreMsg (msg); break; - case eI2NPDatabaseSearchReply: - HandleDatabaseSearchReplyMsg (msg); - break; case eI2NPDatabaseLookup: HandleDatabaseLookupMsg (msg); break; - case eI2NPDummyMsg: - // plain RouterInfo from NTCP2 with flags for now - HandleNTCP2RouterInfoMsg (msg); - break; default: // WTF? - LogPrint (eLogError, "NetDb: unexpected message type ", (int) msg->GetTypeID ()); + LogPrint (eLogError, "NetDb: Unexpected message type ", (int) msg->GetTypeID ()); //i2p::HandleI2NPMessage (msg); } - if (numMsgs > 100) break; - msg = m_Queue.Get (); - numMsgs++; } } if (!m_IsRunning) break; + if (!i2p::transport::transports.IsOnline () || !i2p::transport::transports.IsRunning ()) + continue; // don't manage netdb when offline or transports are not running - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); - if (ts - lastManageRequest >= 15) // manage requests every 15 seconds + uint64_t mts = i2p::util::GetMonotonicMilliseconds (); + if (mts >= lastManage + 60000) // manage routers and leasesets every minute { - m_Requests.ManageRequests (); - lastManageRequest = ts; - } - if (ts - lastSave >= 60) // save routers, manage leasesets and validate subscriptions every minute - { - if (lastSave) + if (lastManage) { - SaveUpdated (); + ManageRouterInfos (); ManageLeaseSets (); } - lastSave = ts; - } - if (ts - lastDestinationCleanup >= i2p::garlic::INCOMING_TAGS_EXPIRATION_TIMEOUT) - { - i2p::context.CleanupDestination (); - lastDestinationCleanup = ts; + lastManage = mts; } - if (ts - lastPublish >= NETDB_PUBLISH_INTERVAL) // update timestamp and publish + if (mts >= lastProfilesCleanup + (uint64_t)(i2p::data::PEER_PROFILE_AUTOCLEAN_TIMEOUT + profilesCleanupVariance)*1000) { - i2p::context.UpdateTimestamp (ts); - if (!m_HiddenMode) Publish (); - lastPublish = ts; + m_RouterProfilesPool.CleanUpMt (); + if (m_PersistProfiles) + { + bool isSaving = m_SavingProfiles.valid (); + if (isSaving && m_SavingProfiles.wait_for(std::chrono::seconds(0)) == std::future_status::ready) // still active? + { + m_SavingProfiles.get (); + isSaving = false; + } + if (!isSaving) + m_SavingProfiles = PersistProfiles (); + else + LogPrint (eLogWarning, "NetDb: Can't persist profiles. Profiles are being saved to disk"); + } + lastProfilesCleanup = mts; + profilesCleanupVariance = m_Rng () % i2p::data::PEER_PROFILE_AUTOCLEAN_VARIANCE; } - if (ts - lastExploratory >= 30) // exploratory every 30 seconds + + if (mts >= lastObsoleteProfilesCleanup + (uint64_t)(i2p::data::PEER_PROFILE_OBSOLETE_PROFILES_CLEAN_TIMEOUT + obsoleteProfilesCleanVariance)*1000) { - auto numRouters = m_RouterInfos.size (); - if (!numRouters) - throw std::runtime_error("No known routers, reseed seems to be totally failed"); - else // we have peers now - m_FloodfillBootstrap = nullptr; - if (numRouters < 2500 || ts - lastExploratory >= 90) + bool isDeleting = m_DeletingProfiles.valid (); + if (isDeleting && m_DeletingProfiles.wait_for(std::chrono::seconds(0)) == std::future_status::ready) // still active? { - numRouters = 800/numRouters; - if (numRouters < 1) numRouters = 1; - if (numRouters > 9) numRouters = 9; - m_Requests.ManageRequests (); - if(!m_HiddenMode) - Explore (numRouters); - lastExploratory = ts; - } - } + m_DeletingProfiles.get (); + isDeleting = false; + } + if (!isDeleting) + m_DeletingProfiles = DeleteObsoleteProfiles (); + else + LogPrint (eLogWarning, "NetDb: Can't delete profiles. Profiles are being deleted from disk"); + lastObsoleteProfilesCleanup = mts; + obsoleteProfilesCleanVariance = m_Rng () % i2p::data::PEER_PROFILE_OBSOLETE_PROFILES_CLEAN_VARIANCE; + } + if (mts >= lastApplyingProfileUpdates + i2p::data::PEER_PROFILE_APPLY_POSTPONED_TIMEOUT + applyingProfileUpdatesVariance) + { + bool isApplying = m_ApplyingProfileUpdates.valid (); + if (isApplying && m_ApplyingProfileUpdates.wait_for(std::chrono::seconds(0)) == std::future_status::ready) // still active? + { + m_ApplyingProfileUpdates.get (); + isApplying = false; + } + if (!isApplying) + m_ApplyingProfileUpdates = i2p::data::FlushPostponedRouterProfileUpdates (); + lastApplyingProfileUpdates = mts; + applyingProfileUpdatesVariance = m_Rng () % i2p::data::PEER_PROFILE_APPLY_POSTPONED_TIMEOUT_VARIANCE; + } } catch (std::exception& ex) { - LogPrint (eLogError, "NetDb: runtime exception: ", ex.what ()); + LogPrint (eLogError, "NetDb: Runtime exception: ", ex.what ()); } } } - void NetDb::SetHidden(bool hide) - { - // TODO: remove reachable addresses from router info - m_HiddenMode = hide; - } - - bool NetDb::AddRouterInfo (const uint8_t * buf, int len) + std::shared_ptr NetDb::AddRouterInfo (const uint8_t * buf, int len) { bool updated; - AddRouterInfo (buf, len, updated); - return updated; + return AddRouterInfo (buf, len, updated); } std::shared_ptr NetDb::AddRouterInfo (const uint8_t * buf, int len, bool& updated) @@ -195,7 +238,8 @@ namespace data bool NetDb::AddRouterInfo (const IdentHash& ident, const uint8_t * buf, int len) { bool updated; - AddRouterInfo (ident, buf, len, updated); + if (!AddRouterInfo (ident, buf, len, updated)) + updated = false; return updated; } @@ -208,41 +252,86 @@ namespace data if (r->IsNewer (buf, len)) { bool wasFloodfill = r->IsFloodfill (); - r->Update (buf, len); - LogPrint (eLogInfo, "NetDb: RouterInfo updated: ", ident.ToBase64()); + { + std::lock_guard l(m_RouterInfosMutex); + if (!r->Update (buf, len)) + { + updated = false; + m_Requests->RequestComplete (ident, r); + return r; + } + if (r->IsUnreachable () || + i2p::util::GetMillisecondsSinceEpoch () + NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < r->GetTimestamp ()) + { + // delete router as invalid or from future after update + m_RouterInfos.erase (ident); + if (wasFloodfill) + { + std::lock_guard l(m_FloodfillsMutex); + m_Floodfills.Remove (r->GetIdentHash ()); + } + m_Requests->RequestComplete (ident, nullptr); + return nullptr; + } + } + if (CheckLogLevel (eLogInfo)) + LogPrint (eLogInfo, "NetDb: RouterInfo updated: ", ident.ToBase64()); if (wasFloodfill != r->IsFloodfill ()) // if floodfill status updated { - LogPrint (eLogDebug, "NetDb: RouterInfo floodfill status updated: ", ident.ToBase64()); - std::unique_lock l(m_FloodfillsMutex); + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDb: RouterInfo floodfill status updated: ", ident.ToBase64()); + std::lock_guard l(m_FloodfillsMutex); if (wasFloodfill) - m_Floodfills.remove (r); - else - m_Floodfills.push_back (r); - } + m_Floodfills.Remove (r->GetIdentHash ()); + else if (r->IsEligibleFloodfill ()) + { + if (m_Floodfills.GetSize () < NETDB_NUM_FLOODFILLS_THRESHOLD || r->GetProfile ()->IsReal ()) + m_Floodfills.Insert (r); + else + r->ResetFloodfill (); + } + } } else { - LogPrint (eLogDebug, "NetDb: RouterInfo is older: ", ident.ToBase64()); + r->CancelBufferToDelete (); // since an update received + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDb: RouterInfo is older: ", ident.ToBase64()); updated = false; } } else { r = std::make_shared (buf, len); - if (!r->IsUnreachable () && r->HasValidAddresses ()) + bool isValid = !r->IsUnreachable () && r->HasValidAddresses () && (!r->IsFloodfill () || !r->GetProfile ()->IsUnreachable ()); + if (isValid) + { + auto mts = i2p::util::GetMillisecondsSinceEpoch (); + isValid = mts + NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL > r->GetTimestamp () && // from future + (mts < r->GetTimestamp () + NETDB_MAX_EXPIRATION_TIMEOUT*1000LL || // too old + context.GetUptime () < NETDB_CHECK_FOR_EXPIRATION_UPTIME/10); // enough uptime + } + if (isValid) { bool inserted = false; { - std::unique_lock l(m_RouterInfosMutex); + std::lock_guard l(m_RouterInfosMutex); inserted = m_RouterInfos.insert ({r->GetIdentHash (), r}).second; } if (inserted) { - LogPrint (eLogInfo, "NetDb: RouterInfo added: ", ident.ToBase64()); - if (r->IsFloodfill () && r->IsReachable ()) // floodfill must be reachable + if (CheckLogLevel (eLogInfo)) + LogPrint (eLogInfo, "NetDb: RouterInfo added: ", ident.ToBase64()); + if (r->IsFloodfill () && r->IsEligibleFloodfill ()) { - std::unique_lock l(m_FloodfillsMutex); - m_Floodfills.push_back (r); + if (m_Floodfills.GetSize () < NETDB_NUM_FLOODFILLS_THRESHOLD || + r->GetProfile ()->IsReal ()) // don't insert floodfill until it's known real if we have enough + { + std::lock_guard l(m_FloodfillsMutex); + m_Floodfills.Insert (r); + } + else + r->ResetFloodfill (); } } else @@ -255,13 +344,13 @@ namespace data updated = false; } // take care about requested destination - m_Requests.RequestComplete (ident, r); + m_Requests->RequestComplete (ident, r); return r; } bool NetDb::AddLeaseSet (const IdentHash& ident, const uint8_t * buf, int len) { - std::unique_lock lock(m_LeaseSetsMutex); + std::lock_guard lock(m_LeaseSetsMutex); bool updated = false; auto it = m_LeaseSets.find(ident); if (it != m_LeaseSets.end () && it->second->GetStoreType () == i2p::data::NETDB_STORE_TYPE_LEASESET) @@ -273,10 +362,11 @@ namespace data if(it->second->GetExpirationTime() < expires) { it->second->Update (buf, len, false); // signature is verified already - LogPrint (eLogInfo, "NetDb: LeaseSet updated: ", ident.ToBase32()); + if (CheckLogLevel (eLogInfo)) + LogPrint (eLogInfo, "NetDb: LeaseSet updated: ", ident.ToBase32()); updated = true; } - else + else if (CheckLogLevel (eLogDebug)) LogPrint(eLogDebug, "NetDb: LeaseSet is older: ", ident.ToBase32()); } else @@ -287,40 +377,50 @@ namespace data auto leaseSet = std::make_shared (buf, len, false); // we don't need leases in netdb if (leaseSet->IsValid ()) { - LogPrint (eLogInfo, "NetDb: LeaseSet added: ", ident.ToBase32()); + if (CheckLogLevel (eLogInfo)) + LogPrint (eLogInfo, "NetDb: LeaseSet added: ", ident.ToBase32()); m_LeaseSets[ident] = leaseSet; updated = true; } else - LogPrint (eLogError, "NetDb: new LeaseSet validation failed: ", ident.ToBase32()); + LogPrint (eLogError, "NetDb: New LeaseSet validation failed: ", ident.ToBase32()); } return updated; } bool NetDb::AddLeaseSet2 (const IdentHash& ident, const uint8_t * buf, int len, uint8_t storeType) { - std::unique_lock lock(m_LeaseSetsMutex); auto leaseSet = std::make_shared (storeType, buf, len, false); // we don't need leases in netdb if (leaseSet->IsValid ()) { + std::lock_guard lock(m_LeaseSetsMutex); auto it = m_LeaseSets.find(ident); if (it == m_LeaseSets.end () || it->second->GetStoreType () != storeType || leaseSet->GetPublishedTimestamp () > it->second->GetPublishedTimestamp ()) { - // TODO: implement actual update - LogPrint (eLogInfo, "NetDb: LeaseSet2 updated: ", ident.ToBase32()); - m_LeaseSets[ident] = leaseSet; - return true; + if (leaseSet->IsPublic () && !leaseSet->IsExpired ()) + { + // TODO: implement actual update + if (CheckLogLevel (eLogInfo)) + LogPrint (eLogInfo, "NetDb: LeaseSet2 updated: ", ident.ToBase32()); + m_LeaseSets[ident] = leaseSet; + return true; + } + else + { + LogPrint (eLogWarning, "NetDb: Unpublished or expired or future LeaseSet2 received: ", ident.ToBase32()); + m_LeaseSets.erase (ident); + } } } else - LogPrint (eLogError, "NetDb: new LeaseSet2 validation failed: ", ident.ToBase32()); + LogPrint (eLogError, "NetDb: New LeaseSet2 validation failed: ", ident.ToBase32()); return false; } std::shared_ptr NetDb::FindRouter (const IdentHash& ident) const { - std::unique_lock l(m_RouterInfosMutex); + std::lock_guard l(m_RouterInfosMutex); auto it = m_RouterInfos.find (ident); if (it != m_RouterInfos.end ()) return it->second; @@ -330,7 +430,7 @@ namespace data std::shared_ptr NetDb::FindLeaseSet (const IdentHash& destination) const { - std::unique_lock lock(m_LeaseSetsMutex); + std::lock_guard lock(m_LeaseSetsMutex); auto it = m_LeaseSets.find (destination); if (it != m_LeaseSets.end ()) return it->second; @@ -349,9 +449,34 @@ namespace data void NetDb::SetUnreachable (const IdentHash& ident, bool unreachable) { - auto it = m_RouterInfos.find (ident); - if (it != m_RouterInfos.end ()) - return it->second->SetUnreachable (unreachable); + auto r = FindRouter (ident); + if (r) + { + r->SetUnreachable (unreachable); + auto profile = r->GetProfile (); + if (profile) + { + profile->Unreachable (unreachable); + if (!unreachable && r->IsDeclaredFloodfill () && !r->IsFloodfill () && + r->IsEligibleFloodfill () && profile->IsReal ()) + { + // enable previously disabled floodfill + r->SetFloodfill (); + std::lock_guard l(m_FloodfillsMutex); + m_Floodfills.Insert (r); + } + } + } + } + + void NetDb::ExcludeReachableTransports (const IdentHash& ident, RouterInfo::CompatibleTransports transports) + { + auto r = FindRouter (ident); + if (r) + { + std::lock_guard l(m_RouterInfosMutex); + r->ExcludeReachableTransports (transports); + } } void NetDb::Reseed () @@ -362,32 +487,13 @@ namespace data m_Reseeder->LoadCertificates (); // we need certificates for SU3 verification } - // try reseeding from floodfill first if specified - std::string riPath; - if(i2p::config::GetOption("reseed.floodfill", riPath)) { - auto ri = std::make_shared(riPath); - if (ri->IsFloodfill()) { - const uint8_t * riData = ri->GetBuffer(); - int riLen = ri->GetBufferLen(); - if(!i2p::data::netdb.AddRouterInfo(riData, riLen)) { - // bad router info - LogPrint(eLogError, "NetDb: bad router info"); - return; - } - m_FloodfillBootstrap = ri; - ReseedFromFloodfill(*ri); - // don't try reseed servers if trying to bootstrap from floodfill - return; - } - } - - m_Reseeder->Bootstrap (); + m_Reseeder->Bootstrap (); } void NetDb::ReseedFromFloodfill(const RouterInfo & ri, int numRouters, int numFloodfills) { - LogPrint(eLogInfo, "NetDB: reseeding from floodfill ", ri.GetIdentHashBase64()); - std::vector > requests; + LogPrint(eLogInfo, "NetDB: Reseeding from floodfill ", ri.GetIdentHashBase64()); + std::list > requests; i2p::data::IdentHash ourIdent = i2p::context.GetIdentHash(); i2p::data::IdentHash ih = ri.GetIdentHash(); @@ -410,24 +516,25 @@ namespace data } // send them off - i2p::transport::transports.SendMessages(ih, requests); + i2p::transport::transports.SendMessages(ih, std::move (requests)); } - bool NetDb::LoadRouterInfo (const std::string & path) + bool NetDb::LoadRouterInfo (const std::string& path, uint64_t ts) { auto r = std::make_shared(path); - if (r->GetRouterIdentity () && !r->IsUnreachable () && - (!r->UsesIntroducer () || m_LastLoad < r->GetTimestamp () + NETDB_INTRODUCEE_EXPIRATION_TIMEOUT*1000LL)) // 1 hour + if (r->GetRouterIdentity () && !r->IsUnreachable () && r->HasValidAddresses () && + ts < r->GetTimestamp () + 24*60*60*NETDB_MAX_OFFLINE_EXPIRATION_TIMEOUT*1000LL) // too old { r->DeleteBuffer (); - r->ClearProperties (); // properties are not used for regular routers - m_RouterInfos[r->GetIdentHash ()] = r; - if (r->IsFloodfill () && r->IsReachable ()) // floodfill must be reachable - m_Floodfills.push_back (r); + if (m_RouterInfos.emplace (r->GetIdentHash (), r).second) + { + if (r->IsFloodfill () && r->IsEligibleFloodfill ()) + m_Floodfills.Insert (r); + } } else { - LogPrint(eLogWarning, "NetDb: RI from ", path, " is invalid. Delete"); + LogPrint(eLogWarning, "NetDb: RI from ", path, " is invalid or too old. Delete"); i2p::fs::Remove(path); } return true; @@ -435,7 +542,7 @@ namespace data void NetDb::VisitLeaseSets(LeaseSetVisitor v) { - std::unique_lock lock(m_LeaseSetsMutex); + std::lock_guard lock(m_LeaseSetsMutex); for ( auto & entry : m_LeaseSets) v(entry.first, entry.second); } @@ -451,7 +558,7 @@ namespace data void NetDb::VisitRouterInfos(RouterInfoVisitor v) { - std::unique_lock lock(m_RouterInfosMutex); + std::lock_guard lock(m_RouterInfosMutex); for ( const auto & item : m_RouterInfos ) v(item.second); } @@ -463,8 +570,8 @@ namespace data size_t iters = max_iters_per_cyle; while(n > 0) { - std::unique_lock lock(m_RouterInfosMutex); - uint32_t idx = rand () % m_RouterInfos.size (); + std::lock_guard lock(m_RouterInfosMutex); + uint32_t idx = m_Rng () % m_RouterInfos.size (); uint32_t i = 0; for (const auto & it : m_RouterInfos) { if(i >= idx) // are we at the random start point? @@ -506,123 +613,181 @@ namespace data { // make sure we cleanup netDb from previous attempts m_RouterInfos.clear (); - m_Floodfills.clear (); + m_Floodfills.Clear (); - m_LastLoad = i2p::util::GetSecondsSinceEpoch(); + uint64_t ts = i2p::util::GetMillisecondsSinceEpoch(); std::vector files; m_Storage.Traverse(files); for (const auto& path : files) - LoadRouterInfo(path); + LoadRouterInfo (path, ts); - LogPrint (eLogInfo, "NetDb: ", m_RouterInfos.size(), " routers loaded (", m_Floodfills.size (), " floodfils)"); + LogPrint (eLogInfo, "NetDb: ", m_RouterInfos.size(), " routers loaded (", m_Floodfills.GetSize (), " floodfils)"); } void NetDb::SaveUpdated () { - int updatedCount = 0, deletedCount = 0; + if (m_PersistingRouters.valid ()) + { + if (m_PersistingRouters.wait_for(std::chrono::seconds(0)) == std::future_status::ready) + m_PersistingRouters.get (); + else + { + LogPrint (eLogWarning, "NetDb: Can't save updated routers. Routers are being saved to disk"); + return; + } + } + + int updatedCount = 0, deletedCount = 0, deletedFloodfillsCount = 0; auto total = m_RouterInfos.size (); + auto totalFloodfills = m_Floodfills.GetSize (); uint64_t expirationTimeout = NETDB_MAX_EXPIRATION_TIMEOUT*1000LL; uint64_t ts = i2p::util::GetMillisecondsSinceEpoch(); + auto uptime = i2p::context.GetUptime (); + double minTunnelCreationSuccessRate; + i2p::config::GetOption("limits.zombies", minTunnelCreationSuccessRate); + bool isLowRate = i2p::tunnel::tunnels.GetPreciseTunnelCreationSuccessRate () < minTunnelCreationSuccessRate; // routers don't expire if less than 90 or uptime is less than 1 hour - bool checkForExpiration = total > NETDB_MIN_ROUTERS && ts > (i2p::context.GetStartupTime () + 600)*1000LL; // 10 minutes - if (checkForExpiration && ts > (i2p::context.GetStartupTime () + 3600)*1000LL) // 1 hour + bool checkForExpiration = total > NETDB_MIN_ROUTERS && uptime > NETDB_CHECK_FOR_EXPIRATION_UPTIME; // 10 minutes + if (checkForExpiration && uptime > i2p::transport::SSU2_TO_INTRODUCER_SESSION_DURATION) // 1 hour expirationTimeout = i2p::context.IsFloodfill () ? NETDB_FLOODFILL_EXPIRATION_TIMEOUT*1000LL : - NETDB_MIN_EXPIRATION_TIMEOUT*1000LL + (NETDB_MAX_EXPIRATION_TIMEOUT - NETDB_MIN_EXPIRATION_TIMEOUT)*1000LL*NETDB_MIN_ROUTERS/total; - - for (auto& it: m_RouterInfos) + NETDB_MIN_EXPIRATION_TIMEOUT*1000LL + (NETDB_MAX_EXPIRATION_TIMEOUT - NETDB_MIN_EXPIRATION_TIMEOUT)*1000LL*NETDB_MIN_ROUTERS/total; + bool isOffline = checkForExpiration && i2p::transport::transports.GetNumPeers () < NETDB_MIN_TRANSPORTS; // enough routers and uptime, but no transports + + std::list > > saveToDisk; + std::list removeFromDisk; + + auto own = i2p::context.GetSharedRouterInfo (); + for (auto [ident, r]: m_RouterInfos) { - std::string ident = it.second->GetIdentHashBase64(); - std::string path = m_Storage.Path(ident); - if (it.second->IsUpdated ()) + if (!r || r == own) continue; // skip own + if (r->IsBufferScheduledToDelete ()) // from previous SaveUpdated, we assume m_PersistingRouters complete { - it.second->SaveToFile (path); - it.second->SetUpdated (false); - it.second->SetUnreachable (false); - it.second->DeleteBuffer (); + std::lock_guard l(m_RouterInfosMutex); // possible collision between DeleteBuffer and Update + r->DeleteBuffer (); + } + if (r->IsUpdated ()) + { + if (r->GetBuffer () && !r->IsUnreachable ()) + { + // we have something to save + std::shared_ptr buffer; + { + std::lock_guard l(m_RouterInfosMutex); // possible collision between DeleteBuffer and Update + buffer = r->CopyBuffer (); + } + if (!i2p::transport::transports.IsConnected (ident)) + r->ScheduleBufferToDelete (); + if (buffer) + saveToDisk.emplace_back(ident.ToBase64 (), buffer); + } + r->SetUpdated (false); updatedCount++; continue; } - // find & mark expired routers - if (it.second->UsesIntroducer ()) + else if (r->GetBuffer () && ts > r->GetTimestamp () + NETDB_MIN_EXPIRATION_TIMEOUT*1000LL) + // since update was long time ago we assume that router is not connected anymore + r->ScheduleBufferToDelete (); + + if (r->HasProfile () && r->GetProfile ()->IsUnreachable ()) + r->SetUnreachable (true); + // make router reachable back if too few routers or floodfills + if (r->IsUnreachable () && (total - deletedCount < NETDB_MIN_ROUTERS || isLowRate || isOffline || + (r->IsFloodfill () && totalFloodfills - deletedFloodfillsCount < NETDB_MIN_FLOODFILLS))) + r->SetUnreachable (false); + if (!r->IsUnreachable ()) { - if (ts > it.second->GetTimestamp () + NETDB_INTRODUCEE_EXPIRATION_TIMEOUT*1000LL) - // RouterInfo expires after 1 hour if uses introducer - it.second->SetUnreachable (true); + // find & mark expired routers + if (!r->GetCompatibleTransports (true)) // non reachable by any transport + r->SetUnreachable (true); + else if (ts + NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < r->GetTimestamp ()) + { + LogPrint (eLogWarning, "NetDb: RouterInfo is from future for ", (r->GetTimestamp () - ts)/1000LL, " seconds"); + r->SetUnreachable (true); + } + else if (checkForExpiration) + { + if (ts > r->GetTimestamp () + expirationTimeout) + r->SetUnreachable (true); + else if ((ts > r->GetTimestamp () + expirationTimeout/2) && // more than half of expiration + total > NETDB_NUM_ROUTERS_THRESHOLD && !r->IsHighBandwidth() && // low bandwidth + !r->IsFloodfill() && (!i2p::context.IsFloodfill () || // non floodfill + (CreateRoutingKey (ident) ^ i2p::context.GetIdentHash ()).metric[0] >= 0x02)) // different first 7 bits + r->SetUnreachable (true); + } } - else if (checkForExpiration && ts > it.second->GetTimestamp () + expirationTimeout) - it.second->SetUnreachable (true); - - if (it.second->IsUnreachable ()) + // make router reachable back if connected now or trusted router + if (r->IsUnreachable () && (i2p::transport::transports.IsConnected (ident) || + i2p::transport::transports.IsTrustedRouter (ident))) + r->SetUnreachable (false); + + if (r->IsUnreachable ()) { + if (r->IsFloodfill ()) deletedFloodfillsCount++; // delete RI file - m_Storage.Remove(ident); + removeFromDisk.emplace_back (ident.ToBase64()); deletedCount++; if (total - deletedCount < NETDB_MIN_ROUTERS) checkForExpiration = false; } } // m_RouterInfos iteration + if (!saveToDisk.empty () || !removeFromDisk.empty ()) + { + m_PersistingRouters = std::async (std::launch::async, &NetDb::PersistRouters, + this, std::move (saveToDisk), std::move (removeFromDisk)); + } + + m_RouterInfoBuffersPool.CleanUpMt (); + m_RouterInfoAddressesPool.CleanUpMt (); + m_RouterInfoAddressVectorsPool.CleanUpMt (); + m_IdentitiesPool.CleanUpMt (); + if (updatedCount > 0) - LogPrint (eLogInfo, "NetDb: saved ", updatedCount, " new/updated routers"); + LogPrint (eLogInfo, "NetDb: Saved ", updatedCount, " new/updated routers"); if (deletedCount > 0) { - LogPrint (eLogInfo, "NetDb: deleting ", deletedCount, " unreachable routers"); + LogPrint (eLogInfo, "NetDb: Deleting ", deletedCount, " unreachable routers"); // clean up RouterInfos table { - std::unique_lock l(m_RouterInfosMutex); + std::lock_guard l(m_RouterInfosMutex); for (auto it = m_RouterInfos.begin (); it != m_RouterInfos.end ();) { - if (it->second->IsUnreachable ()) - { - if (m_PersistProfiles) it->second->SaveProfile (); + if (!it->second || it->second->IsUnreachable ()) it = m_RouterInfos.erase (it); - continue; + else + { + it->second->DropProfile (); + it++; } - ++it; } } // clean up expired floodfills or not floodfills anymore { - std::unique_lock l(m_FloodfillsMutex); - for (auto it = m_Floodfills.begin (); it != m_Floodfills.end ();) - if ((*it)->IsUnreachable () || !(*it)->IsFloodfill ()) - it = m_Floodfills.erase (it); - else - ++it; + std::lock_guard l(m_FloodfillsMutex); + m_Floodfills.Cleanup ([](const std::shared_ptr& r)->bool + { + return r && r->IsFloodfill () && !r->IsUnreachable (); + }); } } } - void NetDb::RequestDestination (const IdentHash& destination, RequestedDestination::RequestComplete requestComplete) + void NetDb::PersistRouters (std::list > >&& update, + std::list&& remove) { - auto dest = m_Requests.CreateRequest (destination, false, requestComplete); // non-exploratory - if (!dest) - { - LogPrint (eLogWarning, "NetDb: destination ", destination.ToBase64(), " is requested already"); - return; - } - - auto floodfill = GetClosestFloodfill (destination, dest->GetExcludedPeers ()); - if (floodfill) - transports.SendMessage (floodfill->GetIdentHash (), dest->CreateRequestMessage (floodfill->GetIdentHash ())); + for (auto it: update) + RouterInfo::SaveToFile (m_Storage.Path(it.first), it.second); + for (auto it: remove) + m_Storage.Remove (it); + } + + void NetDb::RequestDestination (const IdentHash& destination, RequestedDestination::RequestComplete requestComplete, bool direct) + { + if (direct && (i2p::transport::transports.RoutesRestricted () || i2p::context.IsLimitedConnectivity ())) + direct = false; // always use tunnels for restricted routes or limited connectivity + if (m_Requests) + m_Requests->PostRequestDestination (destination, requestComplete, direct); else - { - LogPrint (eLogError, "NetDb: ", destination.ToBase64(), " destination requested, but no floodfills found"); - m_Requests.RequestComplete (destination, nullptr); - } - } - - void NetDb::RequestDestinationFrom (const IdentHash& destination, const IdentHash & from, bool exploritory, RequestedDestination::RequestComplete requestComplete) - { - - auto dest = m_Requests.CreateRequest (destination, exploritory, requestComplete); // non-exploratory - if (!dest) - { - LogPrint (eLogWarning, "NetDb: destination ", destination.ToBase64(), " is requested already"); - return; - } - LogPrint(eLogInfo, "NetDb: destination ", destination.ToBase64(), " being requested directly from ", from.ToBase64()); - // direct - transports.SendMessage (from, dest->CreateRequestMessage (nullptr, nullptr)); + LogPrint (eLogError, "NetDb: Requests is null"); } void NetDb::HandleNTCP2RouterInfoMsg (std::shared_ptr m) @@ -641,36 +806,63 @@ namespace data { const uint8_t * buf = m->GetPayload (); size_t len = m->GetSize (); + if (len < DATABASE_STORE_HEADER_SIZE) + { + LogPrint (eLogError, "NetDb: Database store msg is too short ", len, ". Dropped"); + return; + } IdentHash ident (buf + DATABASE_STORE_KEY_OFFSET); if (ident.IsZero ()) { - LogPrint (eLogDebug, "NetDb: database store with zero ident, dropped"); + LogPrint (eLogDebug, "NetDb: Database store with zero ident, dropped"); return; } uint32_t replyToken = bufbe32toh (buf + DATABASE_STORE_REPLY_TOKEN_OFFSET); size_t offset = DATABASE_STORE_HEADER_SIZE; if (replyToken) { - auto deliveryStatus = CreateDeliveryStatusMsg (replyToken); + if (len < offset + 36) // 32 + 4 + { + LogPrint (eLogError, "NetDb: Database store msg with reply token is too short ", len, ". Dropped"); + return; + } uint32_t tunnelID = bufbe32toh (buf + offset); offset += 4; - if (!tunnelID) // send response directly - transports.SendMessage (buf + offset, deliveryStatus); - else + if (replyToken != 0xFFFFFFFFU) // if not caught on OBEP or IBGW { - auto pool = i2p::tunnel::tunnels.GetExploratoryPool (); - auto outbound = pool ? pool->GetNextOutboundTunnel () : nullptr; - if (outbound) - outbound->SendTunnelDataMsg (buf + offset, tunnelID, deliveryStatus); + IdentHash replyIdent(buf + offset); + auto deliveryStatus = CreateDeliveryStatusMsg (replyToken); + if (!tunnelID) // send response directly + transports.SendMessage (replyIdent, deliveryStatus); else - LogPrint (eLogWarning, "NetDb: no outbound tunnels for DatabaseStore reply found"); + { + bool direct = true; + if (!i2p::transport::transports.IsConnected (replyIdent)) + { + auto r = FindRouter (replyIdent); + if (r && !r->IsReachableFrom (i2p::context.GetRouterInfo ())) + direct = false; + } + if (direct) // send response directly to IBGW + transports.SendMessage (replyIdent, i2p::CreateTunnelGatewayMsg (tunnelID, deliveryStatus)); + else + { + // send response through exploratory tunnel + auto pool = i2p::tunnel::tunnels.GetExploratoryPool (); + auto outbound = pool ? pool->GetNextOutboundTunnel () : nullptr; + if (outbound) + outbound->SendTunnelDataMsgTo (replyIdent, tunnelID, deliveryStatus); + else + LogPrint (eLogWarning, "NetDb: No outbound tunnels for DatabaseStore reply found"); + } + } } offset += 32; } // we must send reply back before this check if (ident == i2p::context.GetIdentHash ()) { - LogPrint (eLogDebug, "NetDb: database store with own RouterInfo received, dropped"); + LogPrint (eLogDebug, "NetDb: Database store with own RouterInfo received, dropped"); return; } size_t payloadOffset = offset; @@ -679,37 +871,50 @@ namespace data uint8_t storeType = buf[DATABASE_STORE_TYPE_OFFSET]; if (storeType) // LeaseSet or LeaseSet2 { - if (!m->from) // unsolicited LS must be received directly + if (len > MAX_LS_BUFFER_SIZE + offset) + { + LogPrint (eLogError, "NetDb: Database store message is too long ", len); + return; + } + if (!context.IsFloodfill ()) + { + LogPrint (eLogInfo, "NetDb: Not Floodfill, LeaseSet store request ignored for ", ident.ToBase32()); + return; + } + else if (!m->from) // unsolicited LS must be received directly { if (storeType == NETDB_STORE_TYPE_LEASESET) // 1 { - LogPrint (eLogDebug, "NetDb: store request: LeaseSet for ", ident.ToBase32()); + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDb: Store request: LeaseSet for ", ident.ToBase32()); updated = AddLeaseSet (ident, buf + offset, len - offset); } else // all others are considered as LeaseSet2 { - LogPrint (eLogDebug, "NetDb: store request: LeaseSet2 of type ", storeType, " for ", ident.ToBase32()); + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDb: Store request: LeaseSet2 of type ", int(storeType), " for ", ident.ToBase32()); updated = AddLeaseSet2 (ident, buf + offset, len - offset, storeType); } } } else // RouterInfo { - LogPrint (eLogDebug, "NetDb: store request: RouterInfo"); + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDb: Store request: RouterInfo ", ident.ToBase64()); size_t size = bufbe16toh (buf + offset); offset += 2; - if (size > 2048 || size > len - offset) + if (size > MAX_RI_BUFFER_SIZE || size > len - offset) { - LogPrint (eLogError, "NetDb: invalid RouterInfo length ", (int)size); + LogPrint (eLogError, "NetDb: Invalid RouterInfo length ", (int)size); return; } - uint8_t uncompressed[2048]; - size_t uncompressedSize = m_Inflator.Inflate (buf + offset, size, uncompressed, 2048); - if (uncompressedSize && uncompressedSize < 2048) + uint8_t uncompressed[MAX_RI_BUFFER_SIZE]; + size_t uncompressedSize = m_Inflator.Inflate (buf + offset, size, uncompressed, MAX_RI_BUFFER_SIZE); + if (uncompressedSize && uncompressedSize < MAX_RI_BUFFER_SIZE) updated = AddRouterInfo (ident, uncompressed, uncompressedSize); else { - LogPrint (eLogInfo, "NetDb: decompression failed ", uncompressedSize); + LogPrint (eLogInfo, "NetDb: Decompression failed ", uncompressedSize); return; } } @@ -727,105 +932,16 @@ namespace data { memcpy (payload + DATABASE_STORE_HEADER_SIZE, buf + payloadOffset, msgLen); floodMsg->FillI2NPMessageHeader (eI2NPDatabaseStore); - Flood (ident, floodMsg); + int minutesBeforeMidnight = 24*60 - i2p::util::GetMinutesSinceEpoch () % (24*60); + bool andNextDay = storeType ? minutesBeforeMidnight < NETDB_NEXT_DAY_LEASESET_THRESHOLD: + minutesBeforeMidnight < NETDB_NEXT_DAY_ROUTER_INFO_THRESHOLD; + Flood (ident, floodMsg, andNextDay); } else LogPrint (eLogError, "NetDb: Database store message is too long ", floodMsg->len); } } - - void NetDb::HandleDatabaseSearchReplyMsg (std::shared_ptr msg) - { - const uint8_t * buf = msg->GetPayload (); - char key[48]; - int l = i2p::data::ByteStreamToBase64 (buf, 32, key, 48); - key[l] = 0; - int num = buf[32]; // num - LogPrint (eLogDebug, "NetDb: DatabaseSearchReply for ", key, " num=", num); - IdentHash ident (buf); - auto dest = m_Requests.FindRequest (ident); - if (dest) - { - bool deleteDest = true; - if (num > 0) - { - auto pool = i2p::tunnel::tunnels.GetExploratoryPool (); - auto outbound = pool ? pool->GetNextOutboundTunnel () : nullptr; - auto inbound = pool ? pool->GetNextInboundTunnel () : nullptr; - if (!dest->IsExploratory ()) - { - // reply to our destination. Try other floodfills - if (outbound && inbound) - { - std::vector msgs; - auto count = dest->GetExcludedPeers ().size (); - if (count < 7) - { - auto nextFloodfill = GetClosestFloodfill (dest->GetDestination (), dest->GetExcludedPeers ()); - if (nextFloodfill) - { - // tell floodfill about us - msgs.push_back (i2p::tunnel::TunnelMessageBlock - { - i2p::tunnel::eDeliveryTypeRouter, - nextFloodfill->GetIdentHash (), 0, - CreateDatabaseStoreMsg () - }); - - // request destination - LogPrint (eLogDebug, "NetDb: Try ", key, " at ", count, " floodfill ", nextFloodfill->GetIdentHash ().ToBase64 ()); - auto msg = dest->CreateRequestMessage (nextFloodfill, inbound); - msgs.push_back (i2p::tunnel::TunnelMessageBlock - { - i2p::tunnel::eDeliveryTypeRouter, - nextFloodfill->GetIdentHash (), 0, msg - }); - deleteDest = false; - } - } - else - LogPrint (eLogWarning, "NetDb: ", key, " was not found on ", count, " floodfills"); - - if (msgs.size () > 0) - outbound->SendTunnelDataMsg (msgs); - } - } - - if (deleteDest) - // no more requests for the destinationation. delete it - m_Requests.RequestComplete (ident, nullptr); - } - else - // no more requests for destination possible. delete it - m_Requests.RequestComplete (ident, nullptr); - } - else if(!m_FloodfillBootstrap) - LogPrint (eLogWarning, "NetDb: requested destination for ", key, " not found"); - - // try responses - for (int i = 0; i < num; i++) - { - const uint8_t * router = buf + 33 + i*32; - char peerHash[48]; - int l1 = i2p::data::ByteStreamToBase64 (router, 32, peerHash, 48); - peerHash[l1] = 0; - LogPrint (eLogDebug, "NetDb: ", i, ": ", peerHash); - - auto r = FindRouter (router); - if (!r || i2p::util::GetMillisecondsSinceEpoch () > r->GetTimestamp () + 3600*1000LL) - { - // router with ident not found or too old (1 hour) - LogPrint (eLogDebug, "NetDb: found new/outdated router. Requesting RouterInfo ..."); - if(m_FloodfillBootstrap) - RequestDestinationFrom(router, m_FloodfillBootstrap->GetIdentHash(), true); - else - RequestDestination (router); - } - else - LogPrint (eLogDebug, "NetDb: [:|||:]"); - } - } - + void NetDb::HandleDatabaseLookupMsg (std::shared_ptr msg) { const uint8_t * buf = msg->GetPayload (); @@ -835,14 +951,13 @@ namespace data LogPrint (eLogError, "NetDb: DatabaseLookup for zero ident. Ignored"); return; } - char key[48]; - int l = i2p::data::ByteStreamToBase64 (buf, 32, key, 48); - key[l] = 0; + std::string key; + if (CheckLogLevel (eLogInfo)) + key = i2p::data::ByteStreamToBase64 (buf, 32); IdentHash replyIdent(buf + 32); uint8_t flag = buf[64]; - LogPrint (eLogDebug, "NetDb: DatabaseLookup for ", key, " received flags=", (int)flag); uint8_t lookupType = flag & DATABASE_LOOKUP_TYPE_FLAGS_MASK; const uint8_t * excluded = buf + 65; @@ -854,79 +969,85 @@ namespace data } uint16_t numExcluded = bufbe16toh (excluded); excluded += 2; - if (numExcluded > 512) + if (numExcluded > 512 || (excluded - buf) + numExcluded*32 > (int)msg->GetPayloadLength ()) { - LogPrint (eLogWarning, "NetDb: number of excluded peers", numExcluded, " exceeds 512"); + LogPrint (eLogWarning, "NetDb: Number of excluded peers", numExcluded, " is too much"); return; } std::shared_ptr replyMsg; if (lookupType == DATABASE_LOOKUP_TYPE_EXPLORATORY_LOOKUP) { - LogPrint (eLogInfo, "NetDb: exploratory close to ", key, " ", numExcluded, " excluded"); - std::set excludedRouters; + if (!context.IsFloodfill ()) + { + LogPrint (eLogWarning, "NetDb: Exploratory lookup to non-floodfill dropped"); + return; + } + LogPrint (eLogInfo, "NetDb: Exploratory close to ", key, " ", numExcluded, " excluded"); + std::unordered_set excludedRouters; + const uint8_t * excluded_ident = excluded; for (int i = 0; i < numExcluded; i++) { - excludedRouters.insert (excluded); - excluded += 32; + excludedRouters.insert (excluded_ident); + excluded_ident += 32; } - std::vector routers; - for (int i = 0; i < 3; i++) - { - auto r = GetClosestNonFloodfill (ident, excludedRouters); - if (r) - { - routers.push_back (r->GetIdentHash ()); - excludedRouters.insert (r->GetIdentHash ()); - } - } - replyMsg = CreateDatabaseSearchReply (ident, routers); + replyMsg = CreateDatabaseSearchReply (ident, GetExploratoryNonFloodfill (ident, + NETDB_MAX_NUM_SEARCH_REPLY_PEER_HASHES, excludedRouters)); } else { - if (lookupType == DATABASE_LOOKUP_TYPE_ROUTERINFO_LOOKUP || - lookupType == DATABASE_LOOKUP_TYPE_NORMAL_LOOKUP) + if (lookupType == DATABASE_LOOKUP_TYPE_ROUTERINFO_LOOKUP || + lookupType == DATABASE_LOOKUP_TYPE_NORMAL_LOOKUP) { + // try to find router auto router = FindRouter (ident); - if (router) + if (router && !router->IsUnreachable ()) { - LogPrint (eLogDebug, "NetDb: requested RouterInfo ", key, " found"); - router->LoadBuffer (); - if (router->GetBuffer ()) + LogPrint (eLogDebug, "NetDb: Requested RouterInfo ", key, " found"); + if (PopulateRouterInfoBuffer (router)) replyMsg = CreateDatabaseStoreMsg (router); } } - if (!replyMsg && (lookupType == DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP || + if (!replyMsg && (lookupType == DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP || lookupType == DATABASE_LOOKUP_TYPE_NORMAL_LOOKUP)) { - auto leaseSet = FindLeaseSet (ident); - if (!leaseSet) + // try to find leaseset + if (context.IsFloodfill ()) + { + auto leaseSet = FindLeaseSet (ident); + if (!leaseSet) + { + // no leaseset found + LogPrint(eLogDebug, "NetDb: Requested LeaseSet not found for ", ident.ToBase32()); + } + else if (!leaseSet->IsExpired ()) // we don't send back expired leasesets + { + LogPrint (eLogDebug, "NetDb: Requested LeaseSet ", key, " found"); + replyMsg = CreateDatabaseStoreMsg (ident, leaseSet); + } + } + else if (lookupType == DATABASE_LOOKUP_TYPE_LEASESET_LOOKUP) { - // no lease set found - LogPrint(eLogDebug, "NetDb: requested LeaseSet not found for ", ident.ToBase32()); - } - else if (!leaseSet->IsExpired ()) // we don't send back our LeaseSets - { - LogPrint (eLogDebug, "NetDb: requested LeaseSet ", key, " found"); - replyMsg = CreateDatabaseStoreMsg (leaseSet); - } + LogPrint (eLogWarning, "NetDb: Explicit LeaseSet lookup to non-floodfill dropped"); + return; + } } if (!replyMsg) { - std::set excludedRouters; + std::unordered_set excludedRouters; const uint8_t * exclude_ident = excluded; for (int i = 0; i < numExcluded; i++) { excludedRouters.insert (exclude_ident); exclude_ident += 32; } - auto closestFloodfills = GetClosestFloodfills (ident, 3, excludedRouters, true); + auto closestFloodfills = GetClosestFloodfills (ident, 3, excludedRouters, false); if (closestFloodfills.empty ()) - LogPrint (eLogWarning, "NetDb: Requested ", key, " not found, ", numExcluded, " peers excluded"); + LogPrint (eLogWarning, "NetDb: No more floodfills for ", key, " found. ", numExcluded, " peers excluded"); replyMsg = CreateDatabaseSearchReply (ident, closestFloodfills); - } + } } excluded += numExcluded * 32; if (replyMsg) @@ -934,118 +1055,91 @@ namespace data if (replyTunnelID) { // encryption might be used though tunnel only - if (flag & DATABASE_LOOKUP_ENCRYPTION_FLAG) // encrypted reply requested + if (flag & (DATABASE_LOOKUP_ENCRYPTION_FLAG | DATABASE_LOOKUP_ECIES_FLAG)) // encrypted reply requested { const uint8_t * sessionKey = excluded; const uint8_t numTags = excluded[32]; if (numTags) { - const i2p::garlic::SessionTag sessionTag(excluded + 33); // take first tag - i2p::garlic::GarlicRoutingSession garlic (sessionKey, sessionTag); - replyMsg = garlic.WrapSingleMessage (replyMsg); - if(replyMsg == nullptr) LogPrint(eLogError, "NetDb: failed to wrap message"); + if (flag & DATABASE_LOOKUP_ECIES_FLAG) + { + uint64_t tag; + memcpy (&tag, excluded + 33, 8); + replyMsg = i2p::garlic::WrapECIESX25519Message (replyMsg, sessionKey, tag); + } + else + { + const i2p::garlic::SessionTag sessionTag(excluded + 33); // take first tag + i2p::garlic::ElGamalAESSession garlic (sessionKey, sessionTag); + replyMsg = garlic.WrapSingleMessage (replyMsg); + } + if (!replyMsg) + LogPrint (eLogError, "NetDb: Failed to wrap message"); } else - LogPrint(eLogWarning, "NetDb: encrypted reply requested but no tags provided"); + LogPrint(eLogWarning, "NetDb: Encrypted reply requested but no tags provided"); } - auto exploratoryPool = i2p::tunnel::tunnels.GetExploratoryPool (); - auto outbound = exploratoryPool ? exploratoryPool->GetNextOutboundTunnel () : nullptr; - if (outbound) - outbound->SendTunnelDataMsg (replyIdent, replyTunnelID, replyMsg); - else + bool direct = true; + if (!i2p::transport::transports.IsConnected (replyIdent)) + { + auto r = FindRouter (replyIdent); + if (r && !r->IsReachableFrom (i2p::context.GetRouterInfo ())) + direct = false; + } + if (direct) transports.SendMessage (replyIdent, i2p::CreateTunnelGatewayMsg (replyTunnelID, replyMsg)); + else + { + auto exploratoryPool = i2p::tunnel::tunnels.GetExploratoryPool (); + auto outbound = exploratoryPool ? exploratoryPool->GetNextOutboundTunnel () : nullptr; + if (outbound) + outbound->SendTunnelDataMsgTo (replyIdent, replyTunnelID, replyMsg); + else + LogPrint (eLogWarning, "NetDb: Can't send lookup reply to ", replyIdent.ToBase64 (), ". Non reachable and no outbound tunnels"); + } } else transports.SendMessage (replyIdent, replyMsg); } } - void NetDb::Explore (int numDestinations) + void NetDb::Flood (const IdentHash& ident, std::shared_ptr floodMsg, bool andNextDay) { - // new requests - auto exploratoryPool = i2p::tunnel::tunnels.GetExploratoryPool (); - auto outbound = exploratoryPool ? exploratoryPool->GetNextOutboundTunnel () : nullptr; - auto inbound = exploratoryPool ? exploratoryPool->GetNextInboundTunnel () : nullptr; - bool throughTunnels = outbound && inbound; - - uint8_t randomHash[32]; - std::vector msgs; - LogPrint (eLogInfo, "NetDb: exploring new ", numDestinations, " routers ..."); - for (int i = 0; i < numDestinations; i++) - { - RAND_bytes (randomHash, 32); - auto dest = m_Requests.CreateRequest (randomHash, true); // exploratory - if (!dest) - { - LogPrint (eLogWarning, "NetDb: exploratory destination is requested already"); - return; - } - auto floodfill = GetClosestFloodfill (randomHash, dest->GetExcludedPeers ()); - if (floodfill) - { - if (i2p::transport::transports.IsConnected (floodfill->GetIdentHash ())) - throughTunnels = false; - if (throughTunnels) - { - msgs.push_back (i2p::tunnel::TunnelMessageBlock - { - i2p::tunnel::eDeliveryTypeRouter, - floodfill->GetIdentHash (), 0, - CreateDatabaseStoreMsg () // tell floodfill about us - }); - msgs.push_back (i2p::tunnel::TunnelMessageBlock - { - i2p::tunnel::eDeliveryTypeRouter, - floodfill->GetIdentHash (), 0, - dest->CreateRequestMessage (floodfill, inbound) // explore - }); - } - else - i2p::transport::transports.SendMessage (floodfill->GetIdentHash (), dest->CreateRequestMessage (floodfill->GetIdentHash ())); - } - else - m_Requests.RequestComplete (randomHash, nullptr); - } - if (throughTunnels && msgs.size () > 0) - outbound->SendTunnelDataMsg (msgs); - } - - void NetDb::Publish () - { - i2p::context.UpdateStats (); // for floodfill - std::set excluded; // TODO: fill up later - for (int i = 0; i < 2; i++) - { - auto floodfill = GetClosestFloodfill (i2p::context.GetRouterInfo ().GetIdentHash (), excluded); - if (floodfill) - { - uint32_t replyToken; - RAND_bytes ((uint8_t *)&replyToken, 4); - LogPrint (eLogInfo, "NetDb: Publishing our RouterInfo to ", i2p::data::GetIdentHashAbbreviation(floodfill->GetIdentHash ()), ". reply token=", replyToken); - transports.SendMessage (floodfill->GetIdentHash (), CreateDatabaseStoreMsg (i2p::context.GetSharedRouterInfo (), replyToken)); - excluded.insert (floodfill->GetIdentHash ()); - } - } - } - - void NetDb::Flood (const IdentHash& ident, std::shared_ptr floodMsg) - { - std::set excluded; + std::unordered_set excluded; excluded.insert (i2p::context.GetIdentHash ()); // don't flood to itself excluded.insert (ident); // don't flood back for (int i = 0; i < 3; i++) { - auto floodfill = GetClosestFloodfill (ident, excluded); + auto floodfill = GetClosestFloodfill (ident, excluded, false); // current day if (floodfill) { - auto h = floodfill->GetIdentHash(); - LogPrint(eLogDebug, "NetDb: Flood lease set for ", ident.ToBase32(), " to ", h.ToBase64()); + const auto& h = floodfill->GetIdentHash(); transports.SendMessage (h, CopyI2NPMessage(floodMsg)); excluded.insert (h); } else - break; + return; // no more floodfills } + if (andNextDay) + { + // flood to two more closest flodfills for next day + std::unordered_set excluded1; + excluded1.insert (i2p::context.GetIdentHash ()); // don't flood to itself + excluded1.insert (ident); // don't flood back + for (int i = 0; i < 2; i++) + { + auto floodfill = GetClosestFloodfill (ident, excluded1, true); // next day + if (floodfill) + { + const auto& h = floodfill->GetIdentHash(); + if (!excluded.count (h)) // we didn't send for current day, otherwise skip + transports.SendMessage (h, CopyI2NPMessage(floodMsg)); + excluded1.insert (h); + } + else + return; + } + } } std::shared_ptr NetDb::GetRandomRouter () const @@ -1057,42 +1151,60 @@ namespace data }); } - std::shared_ptr NetDb::GetRandomRouter (std::shared_ptr compatibleWith) const + std::shared_ptr NetDb::GetRandomRouter (std::shared_ptr compatibleWith, + bool reverse, bool endpoint, bool clientTunnel) const { + bool checkIsReal = clientTunnel && i2p::tunnel::tunnels.GetPreciseTunnelCreationSuccessRate () < NETDB_TUNNEL_CREATION_RATE_THRESHOLD && // too low rate + context.GetUptime () > NETDB_CHECK_FOR_EXPIRATION_UPTIME; // after 10 minutes uptime return GetRandomRouter ( - [compatibleWith](std::shared_ptr router)->bool + [compatibleWith, reverse, endpoint, clientTunnel, checkIsReal](std::shared_ptr router)->bool { return !router->IsHidden () && router != compatibleWith && - router->IsCompatible (*compatibleWith); + (reverse ? (compatibleWith->IsReachableFrom (*router) && router->GetCompatibleTransports (true)): + router->IsReachableFrom (*compatibleWith)) && !router->IsNAT2NATOnly (*compatibleWith) && + router->IsECIES () && !router->IsHighCongestion (clientTunnel) && + (!checkIsReal || router->GetProfile ()->IsReal ()) && + (!endpoint || (router->IsV4 () && (!reverse || router->IsPublished (true)))); // endpoint must be ipv4 and published if inbound(reverse) }); } - std::shared_ptr NetDb::GetRandomPeerTestRouter (bool v4only) const + std::shared_ptr NetDb::GetRandomSSU2PeerTestRouter (bool v4, const std::unordered_set& excluded) const { return GetRandomRouter ( - [v4only](std::shared_ptr router)->bool + [v4, &excluded](std::shared_ptr router)->bool { - return !router->IsHidden () && router->IsPeerTesting () && router->IsSSU (v4only); + return !router->IsHidden () && router->IsECIES () && + router->IsSSU2PeerTesting (v4) && !excluded.count (router->GetIdentHash ()); }); } - std::shared_ptr NetDb::GetRandomIntroducer () const + std::shared_ptr NetDb::GetRandomSSU2Introducer (bool v4, const std::unordered_set& excluded) const { return GetRandomRouter ( - [](std::shared_ptr router)->bool + [v4, &excluded](std::shared_ptr router)->bool { - return !router->IsHidden () && router->IsIntroducer (); + return !router->IsHidden () && router->IsSSU2Introducer (v4) && + !excluded.count (router->GetIdentHash ()); }); } - std::shared_ptr NetDb::GetHighBandwidthRandomRouter (std::shared_ptr compatibleWith) const + std::shared_ptr NetDb::GetHighBandwidthRandomRouter (std::shared_ptr compatibleWith, + bool reverse, bool endpoint) const { + bool checkIsReal = i2p::tunnel::tunnels.GetPreciseTunnelCreationSuccessRate () < NETDB_TUNNEL_CREATION_RATE_THRESHOLD && // too low rate + context.GetUptime () > NETDB_CHECK_FOR_EXPIRATION_UPTIME; // after 10 minutes uptime return GetRandomRouter ( - [compatibleWith](std::shared_ptr router)->bool + [compatibleWith, reverse, endpoint, checkIsReal](std::shared_ptr router)->bool { return !router->IsHidden () && router != compatibleWith && - router->IsCompatible (*compatibleWith) && - (router->GetCaps () & RouterInfo::eHighBandwidth); + (reverse ? (compatibleWith->IsReachableFrom (*router) && router->GetCompatibleTransports (true)) : + router->IsReachableFrom (*compatibleWith)) && !router->IsNAT2NATOnly (*compatibleWith) && + (router->GetCaps () & RouterInfo::eHighBandwidth) && + router->GetVersion () >= NETDB_MIN_HIGHBANDWIDTH_VERSION && + router->IsECIES () && !router->IsHighCongestion (true) && + (!checkIsReal || router->GetProfile ()->IsReal ()) && + (!endpoint || (router->IsV4 () && (!reverse || router->IsPublished (true)))); // endpoint must be ipv4 and published if inbound(reverse) + }); } @@ -1100,24 +1212,58 @@ namespace data std::shared_ptr NetDb::GetRandomRouter (Filter filter) const { if (m_RouterInfos.empty()) - return 0; - uint32_t ind = rand () % m_RouterInfos.size (); - for (int j = 0; j < 2; j++) + return nullptr; + uint16_t inds[3]; + RAND_bytes ((uint8_t *)inds, sizeof (inds)); + std::lock_guard l(m_RouterInfosMutex); + auto count = m_RouterInfos.size (); + if(count == 0) return nullptr; + inds[0] %= count; + auto it = m_RouterInfos.begin (); + std::advance (it, inds[0]); + // try random router + if (it != m_RouterInfos.end () && !it->second->IsUnreachable () && filter (it->second)) + return it->second; + // try some routers around + auto it1 = m_RouterInfos.begin (); + if (inds[0]) { - uint32_t i = 0; - std::unique_lock l(m_RouterInfosMutex); - for (const auto& it: m_RouterInfos) - { - if (i >= ind) - { - if (!it.second->IsUnreachable () && filter (it.second)) - return it.second; - } - else - i++; - } - // we couldn't find anything, try second pass - ind = 0; + // before + inds[1] %= inds[0]; + std::advance (it1, (inds[1] + inds[0])/2); + } + else + it1 = it; + auto it2 = it; + if (inds[0] < m_RouterInfos.size () - 1) + { + // after + inds[2] %= (m_RouterInfos.size () - 1 - inds[0]); inds[2] /= 2; + std::advance (it2, inds[2]); + } + // it1 - from, it2 - to + it = it1; + while (it != it2 && it != m_RouterInfos.end ()) + { + if (!it->second->IsUnreachable () && filter (it->second)) + return it->second; + it++; + } + // still not found, try from the beginning + it = m_RouterInfos.begin (); + while (it != it1 && it != m_RouterInfos.end ()) + { + if (!it->second->IsUnreachable () && filter (it->second)) + return it->second; + it++; + } + // still not found, try to the beginning + it = it2; + while (it != m_RouterInfos.end ()) + { + if (!it->second->IsUnreachable () && filter (it->second)) + return it->second; + it++; } return nullptr; // seems we have too few routers } @@ -1127,85 +1273,52 @@ namespace data if (msg) m_Queue.Put (msg); } - std::shared_ptr NetDb::GetClosestFloodfill (const IdentHash& destination, - const std::set& excluded, bool closeThanUsOnly) const + void NetDb::PostDatabaseSearchReplyMsg (std::shared_ptr msg) { - std::shared_ptr r; - XORMetric minMetric; - IdentHash destKey = CreateRoutingKey (destination); - if (closeThanUsOnly) - minMetric = destKey ^ i2p::context.GetIdentHash (); - else - minMetric.SetMax (); - std::unique_lock l(m_FloodfillsMutex); - for (const auto& it: m_Floodfills) - { - if (!it->IsUnreachable ()) + if (msg && m_Requests) + m_Requests->PostDatabaseSearchReplyMsg (msg); + } + + std::shared_ptr NetDb::GetClosestFloodfill (const IdentHash& destination, + const std::unordered_set& excluded, bool nextDay) const + { + IdentHash destKey = CreateRoutingKey (destination, nextDay); + std::lock_guard l(m_FloodfillsMutex); + return m_Floodfills.FindClosest (destKey, [&excluded](const std::shared_ptr& r)->bool { - XORMetric m = destKey ^ it->GetIdentHash (); - if (m < minMetric && !excluded.count (it->GetIdentHash ())) - { - minMetric = m; - r = it; - } - } - } - return r; + return r && !r->IsUnreachable () && !r->GetProfile ()->IsUnreachable () && + !excluded.count (r->GetIdentHash ()); + }); } std::vector NetDb::GetClosestFloodfills (const IdentHash& destination, size_t num, - std::set& excluded, bool closeThanUsOnly) const + std::unordered_set& excluded, bool closeThanUsOnly) const { - struct Sorted - { - std::shared_ptr r; - XORMetric metric; - bool operator< (const Sorted& other) const { return metric < other.metric; }; - }; - - std::set sorted; + std::vector res; IdentHash destKey = CreateRoutingKey (destination); + std::vector > v; + { + std::lock_guard l(m_FloodfillsMutex); + v = m_Floodfills.FindClosest (destKey, num, [&excluded](const std::shared_ptr& r)->bool + { + return r && !r->IsUnreachable () && !r->GetProfile ()->IsUnreachable () && + !excluded.count (r->GetIdentHash ()); + }); + } + if (v.empty ()) return res; + XORMetric ourMetric; if (closeThanUsOnly) ourMetric = destKey ^ i2p::context.GetIdentHash (); + for (auto& it: v) { - std::unique_lock l(m_FloodfillsMutex); - for (const auto& it: m_Floodfills) - { - if (!it->IsUnreachable ()) - { - XORMetric m = destKey ^ it->GetIdentHash (); - if (closeThanUsOnly && ourMetric < m) continue; - if (sorted.size () < num) - sorted.insert ({it, m}); - else if (m < sorted.rbegin ()->metric) - { - sorted.insert ({it, m}); - sorted.erase (std::prev (sorted.end ())); - } - } - } - } - - std::vector res; - size_t i = 0; - for (const auto& it: sorted) - { - if (i < num) - { - const auto& ident = it.r->GetIdentHash (); - if (!excluded.count (ident)) - { - res.push_back (ident); - i++; - } - } - else - break; + if (closeThanUsOnly && ourMetric < (destKey ^ it->GetIdentHash ())) break; + res.push_back (it->GetIdentHash ()); } return res; } - std::shared_ptr NetDb::GetRandomRouterInFamily(const std::string & fam) const { + std::shared_ptr NetDb::GetRandomRouterInFamily (FamilyID fam) const + { return GetRandomRouter( [fam](std::shared_ptr router)->bool { @@ -1213,27 +1326,61 @@ namespace data }); } - std::shared_ptr NetDb::GetClosestNonFloodfill (const IdentHash& destination, - const std::set& excluded) const + std::vector NetDb::GetExploratoryNonFloodfill (const IdentHash& destination, + size_t num, const std::unordered_set& excluded) { - std::shared_ptr r; - XORMetric minMetric; - IdentHash destKey = CreateRoutingKey (destination); - minMetric.SetMax (); - // must be called from NetDb thread only - for (const auto& it: m_RouterInfos) + std::vector ret; + if (!num || m_RouterInfos.empty ()) return ret; // empty list + auto ts = i2p::util::GetMonotonicSeconds (); + if (ts > m_LastExploratorySelectionUpdateTime + NETDB_EXPLORATORY_SELECTION_UPDATE_INTERVAL) { - if (!it.second->IsFloodfill ()) + // update selection + m_ExploratorySelection.clear (); + std::vector > eligible; + eligible.reserve (m_RouterInfos.size ()); { - XORMetric m = destKey ^ it.first; - if (m < minMetric && !excluded.count (it.first)) - { - minMetric = m; - r = it.second; - } + // collect eligible from current netdb + bool checkIsReal = i2p::tunnel::tunnels.GetPreciseTunnelCreationSuccessRate () < NETDB_TUNNEL_CREATION_RATE_THRESHOLD; // too low rate + std::lock_guard l(m_RouterInfosMutex); + for (const auto& it: m_RouterInfos) + if (!it.second->IsDeclaredFloodfill () && + (!checkIsReal || (it.second->HasProfile () && it.second->GetProfile ()->IsReal ()))) + eligible.push_back (it.second); } + if (eligible.size () > NETDB_MAX_EXPLORATORY_SELECTION_SIZE) + { + std::sample (eligible.begin(), eligible.end(), std::back_inserter(m_ExploratorySelection), + NETDB_MAX_EXPLORATORY_SELECTION_SIZE, m_Rng); + } + else + std::swap (m_ExploratorySelection, eligible); + m_LastExploratorySelectionUpdateTime = ts; + } + + // sort by distance + IdentHash destKey = CreateRoutingKey (destination); + std::map > sorted; + for (const auto& it: m_ExploratorySelection) + if (!excluded.count (it->GetIdentHash ())) + sorted.emplace (destKey ^ it->GetIdentHash (), it); + // return first num closest routers + for (const auto& it: sorted) + { + ret.push_back (it.second->GetIdentHash ()); + if (ret.size () >= num) break; + } + return ret; + } + + void NetDb::ManageRouterInfos () + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + { + std::lock_guard l(m_RouterInfosMutex); + for (auto& it: m_RouterInfos) + it.second->UpdateIntroducers (ts); } - return r; + SaveUpdated (); } void NetDb::ManageLeaseSets () @@ -1249,6 +1396,14 @@ namespace data else ++it; } + m_LeasesPool.CleanUpMt (); + } + + bool NetDb::PopulateRouterInfoBuffer (std::shared_ptr r) + { + if (!r) return false; + if (r->GetBuffer ()) return true; + return r->LoadBuffer (m_Storage.Path (r->GetIdentHashBase64 ())); } } } diff --git a/libi2pd/NetDb.hpp b/libi2pd/NetDb.hpp index 93e9e48f..f2a7019b 100644 --- a/libi2pd/NetDb.hpp +++ b/libi2pd/NetDb.hpp @@ -1,13 +1,22 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef NETDB_H__ #define NETDB_H__ // this file is called NetDb.hpp to resolve conflict with libc's netdb.h on case insensitive fs #include -#include -#include -#include +#include +#include #include #include #include +#include +#include #include "Base.h" #include "Gzip.h" @@ -21,17 +30,35 @@ #include "Reseed.h" #include "NetDbRequests.h" #include "Family.h" +#include "version.h" +#include "util.h" +#include "KadDHT.h" namespace i2p { namespace data { const int NETDB_MIN_ROUTERS = 90; - const int NETDB_FLOODFILL_EXPIRATION_TIMEOUT = 60*60; // 1 hour, in seconds - const int NETDB_INTRODUCEE_EXPIRATION_TIMEOUT = 65*60; - const int NETDB_MIN_EXPIRATION_TIMEOUT = 90*60; // 1.5 hours - const int NETDB_MAX_EXPIRATION_TIMEOUT = 27*60*60; // 27 hours - const int NETDB_PUBLISH_INTERVAL = 60*40; + const int NETDB_MIN_FLOODFILLS = 5; + const int NETDB_MIN_TRANSPORTS = 10 ; // otherwise assume offline + const int NETDB_NUM_FLOODFILLS_THRESHOLD = 1200; + const int NETDB_NUM_ROUTERS_THRESHOLD = 4*NETDB_NUM_FLOODFILLS_THRESHOLD; + const int NETDB_TUNNEL_CREATION_RATE_THRESHOLD = 10; // in % + const int NETDB_CHECK_FOR_EXPIRATION_UPTIME = 600; // 10 minutes, in seconds + const int NETDB_FLOODFILL_EXPIRATION_TIMEOUT = 60 * 60; // 1 hour, in seconds + const int NETDB_MIN_EXPIRATION_TIMEOUT = 90 * 60; // 1.5 hours + const int NETDB_MAX_EXPIRATION_TIMEOUT = 27 * 60 * 60; // 27 hours + const int NETDB_MAX_OFFLINE_EXPIRATION_TIMEOUT = 180; // in days + const int NETDB_EXPIRATION_TIMEOUT_THRESHOLD = 2*60; // 2 minutes + const int NETDB_MIN_HIGHBANDWIDTH_VERSION = MAKE_VERSION_NUMBER(0, 9, 58); // 0.9.58 + const int NETDB_MIN_FLOODFILL_VERSION = MAKE_VERSION_NUMBER(0, 9, 59); // 0.9.59 + const int NETDB_MIN_SHORT_TUNNEL_BUILD_VERSION = MAKE_VERSION_NUMBER(0, 9, 51); // 0.9.51 + const int NETDB_MIN_PEER_TEST_VERSION = MAKE_VERSION_NUMBER(0, 9, 62); // 0.9.62 + const size_t NETDB_MAX_NUM_SEARCH_REPLY_PEER_HASHES = 16; + const size_t NETDB_MAX_EXPLORATORY_SELECTION_SIZE = 500; + const int NETDB_EXPLORATORY_SELECTION_UPDATE_INTERVAL = 82; // in seconds. for floodfill + const int NETDB_NEXT_DAY_ROUTER_INFO_THRESHOLD = 45; // in minutes + const int NETDB_NEXT_DAY_LEASESET_THRESHOLD = 10; // in minutes /** function for visiting a leaseset stored in a floodfill */ typedef std::function)> LeaseSetVisitor; @@ -52,7 +79,7 @@ namespace data void Start (); void Stop (); - bool AddRouterInfo (const uint8_t * buf, int len); + std::shared_ptr AddRouterInfo (const uint8_t * buf, int len); bool AddRouterInfo (const IdentHash& ident, const uint8_t * buf, int len); bool AddLeaseSet (const IdentHash& ident, const uint8_t * buf, int len); bool AddLeaseSet2 (const IdentHash& ident, const uint8_t * buf, int len, uint8_t storeType); @@ -60,37 +87,30 @@ namespace data std::shared_ptr FindLeaseSet (const IdentHash& destination) const; std::shared_ptr FindRouterProfile (const IdentHash& ident) const; - void RequestDestination (const IdentHash& destination, RequestedDestination::RequestComplete requestComplete = nullptr); - void RequestDestinationFrom (const IdentHash& destination, const IdentHash & from, bool exploritory, RequestedDestination::RequestComplete requestComplete = nullptr); - - void HandleDatabaseStoreMsg (std::shared_ptr msg); - void HandleDatabaseSearchReplyMsg (std::shared_ptr msg); - void HandleDatabaseLookupMsg (std::shared_ptr msg); - void HandleNTCP2RouterInfoMsg (std::shared_ptr m); - + void RequestDestination (const IdentHash& destination, RequestedDestination::RequestComplete requestComplete = nullptr, bool direct = true); + std::shared_ptr GetRandomRouter () const; - std::shared_ptr GetRandomRouter (std::shared_ptr compatibleWith) const; - std::shared_ptr GetHighBandwidthRandomRouter (std::shared_ptr compatibleWith) const; - std::shared_ptr GetRandomPeerTestRouter (bool v4only = true) const; - std::shared_ptr GetRandomIntroducer () const; - std::shared_ptr GetClosestFloodfill (const IdentHash& destination, const std::set& excluded, bool closeThanUsOnly = false) const; + std::shared_ptr GetRandomRouter (std::shared_ptr compatibleWith, bool reverse, bool endpoint, bool clientTunnel) const; + std::shared_ptr GetHighBandwidthRandomRouter (std::shared_ptr compatibleWith, bool reverse, bool endpoint) const; + std::shared_ptr GetRandomSSU2PeerTestRouter (bool v4, const std::unordered_set& excluded) const; + std::shared_ptr GetRandomSSU2Introducer (bool v4, const std::unordered_set& excluded) const; + std::shared_ptr GetClosestFloodfill (const IdentHash& destination, const std::unordered_set& excluded, bool nextDay = false) const; std::vector GetClosestFloodfills (const IdentHash& destination, size_t num, - std::set& excluded, bool closeThanUsOnly = false) const; - std::shared_ptr GetClosestNonFloodfill (const IdentHash& destination, const std::set& excluded) const; - std::shared_ptr GetRandomRouterInFamily(const std::string & fam) const; + std::unordered_set& excluded, bool closeThanUsOnly = false) const; + std::vector GetExploratoryNonFloodfill (const IdentHash& destination, size_t num, const std::unordered_set& excluded); + std::shared_ptr GetRandomRouterInFamily (FamilyID fam) const; void SetUnreachable (const IdentHash& ident, bool unreachable); + void ExcludeReachableTransports (const IdentHash& ident, RouterInfo::CompatibleTransports transports); void PostI2NPMsg (std::shared_ptr msg); - - /** set hidden mode, aka don't publish our RI to netdb and don't explore */ - void SetHidden(bool hide); + void PostDatabaseSearchReplyMsg (std::shared_ptr msg); // to NetdbReq thread void Reseed (); Families& GetFamilies () { return m_Families; }; // for web interface int GetNumRouters () const { return m_RouterInfos.size (); }; - int GetNumFloodfills () const { return m_Floodfills.size (); }; + int GetNumFloodfills () const { return m_Floodfills.GetSize (); }; int GetNumLeaseSets () const { return m_LeaseSets.size (); }; /** visit all lease sets we currently store */ @@ -103,37 +123,59 @@ namespace data size_t VisitRandomRouterInfos(RouterInfoFilter f, RouterInfoVisitor v, size_t n); void ClearRouterInfos () { m_RouterInfos.clear (); }; + template + std::shared_ptr NewRouterInfoBuffer (TArgs&&... args) + { + return m_RouterInfoBuffersPool.AcquireSharedMt (std::forward(args)...); + } + bool PopulateRouterInfoBuffer (std::shared_ptr r); + std::shared_ptr NewRouterInfoAddress () { return m_RouterInfoAddressesPool.AcquireSharedMt (); }; + RouterInfo::AddressesPtr NewRouterInfoAddresses () + { + return RouterInfo::AddressesPtr{m_RouterInfoAddressVectorsPool.AcquireMt (), + std::bind ::*)(RouterInfo::Addresses *)> + (&i2p::util::MemoryPoolMt::ReleaseMt, + &m_RouterInfoAddressVectorsPool, std::placeholders::_1)}; + }; + std::shared_ptr NewLease (const Lease& lease) { return m_LeasesPool.AcquireSharedMt (lease); }; + std::shared_ptr NewIdentity (const uint8_t * buf, size_t len) { return m_IdentitiesPool.AcquireSharedMt (buf, len); }; + std::shared_ptr NewRouterProfile () { return m_RouterProfilesPool.AcquireSharedMt (); }; private: void Load (); - bool LoadRouterInfo (const std::string & path); + bool LoadRouterInfo (const std::string& path, uint64_t ts); void SaveUpdated (); - void Run (); // exploratory thread - void Explore (int numDestinations); - void Publish (); - void Flood (const IdentHash& ident, std::shared_ptr floodMsg); + void PersistRouters (std::list > >&& update, + std::list&& remove); + void Run (); + void Flood (const IdentHash& ident, std::shared_ptr floodMsg, bool andNextDay = false); + void ManageRouterInfos (); void ManageLeaseSets (); void ManageRequests (); - void ReseedFromFloodfill(const RouterInfo & ri, int numRouters=40, int numFloodfills=20); + void ReseedFromFloodfill(const RouterInfo & ri, int numRouters = 40, int numFloodfills = 20); std::shared_ptr AddRouterInfo (const uint8_t * buf, int len, bool& updated); std::shared_ptr AddRouterInfo (const IdentHash& ident, const uint8_t * buf, int len, bool& updated); - template - std::shared_ptr GetRandomRouter (Filter filter) const; + + template + std::shared_ptr GetRandomRouter (Filter filter) const; + + void HandleDatabaseStoreMsg (std::shared_ptr msg); + void HandleDatabaseLookupMsg (std::shared_ptr msg); + void HandleNTCP2RouterInfoMsg (std::shared_ptr m); private: mutable std::mutex m_LeaseSetsMutex; - std::map > m_LeaseSets; + std::unordered_map > m_LeaseSets; mutable std::mutex m_RouterInfosMutex; - std::map > m_RouterInfos; + std::unordered_map > m_RouterInfos; mutable std::mutex m_FloodfillsMutex; - std::list > m_Floodfills; + DHTTable m_Floodfills; bool m_IsRunning; - uint64_t m_LastLoad; std::thread * m_Thread; i2p::util::Queue > m_Queue; // of I2NPDatabaseStoreMsg @@ -142,17 +184,21 @@ namespace data Families m_Families; i2p::fs::HashedStorage m_Storage; - friend class NetDbRequests; - NetDbRequests m_Requests; + std::shared_ptr m_Requests; bool m_PersistProfiles; + std::future m_SavingProfiles, m_DeletingProfiles, m_ApplyingProfileUpdates, m_PersistingRouters; - /** router info we are bootstrapping from or nullptr if we are not currently doing that*/ - std::shared_ptr m_FloodfillBootstrap; + std::vector > m_ExploratorySelection; + uint64_t m_LastExploratorySelectionUpdateTime; // in monotonic seconds + std::mt19937 m_Rng; - - /** true if in hidden mode */ - bool m_HiddenMode; + i2p::util::MemoryPoolMt m_RouterInfoBuffersPool; + i2p::util::MemoryPoolMt m_RouterInfoAddressesPool; + i2p::util::MemoryPoolMt m_RouterInfoAddressVectorsPool; + i2p::util::MemoryPoolMt m_LeasesPool; + i2p::util::MemoryPoolMt m_IdentitiesPool; + i2p::util::MemoryPoolMt m_RouterProfilesPool; }; extern NetDb netdb; diff --git a/libi2pd/NetDbRequests.cpp b/libi2pd/NetDbRequests.cpp index f1853124..94633e10 100644 --- a/libi2pd/NetDbRequests.cpp +++ b/libi2pd/NetDbRequests.cpp @@ -1,26 +1,54 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "Log.h" #include "I2NPProtocol.h" #include "Transports.h" #include "NetDb.hpp" +#include "ECIESX25519AEADRatchetSession.h" +#include "RouterContext.h" +#include "Timestamp.h" #include "NetDbRequests.h" namespace i2p { namespace data { + RequestedDestination::RequestedDestination (const IdentHash& destination, bool isExploratory, bool direct): + m_Destination (destination), m_IsExploratory (isExploratory), m_IsDirect (direct), + m_IsActive (true), m_IsSentDirectly (false), + m_CreationTime (i2p::util::GetMillisecondsSinceEpoch ()), + m_LastRequestTime (0), m_NumAttempts (0) + { + if (i2p::context.IsFloodfill ()) + m_ExcludedPeers.insert (i2p::context.GetIdentHash ()); // exclude self if floodfill + } + + RequestedDestination::~RequestedDestination () + { + InvokeRequestComplete (nullptr); + } + std::shared_ptr RequestedDestination::CreateRequestMessage (std::shared_ptr router, std::shared_ptr replyTunnel) { std::shared_ptr msg; if(replyTunnel) msg = i2p::CreateRouterInfoDatabaseLookupMsg (m_Destination, - replyTunnel->GetNextIdentHash (), replyTunnel->GetNextTunnelID (), m_IsExploratory, - &m_ExcludedPeers); + replyTunnel->GetNextIdentHash (), replyTunnel->GetNextTunnelID (), m_IsExploratory, + &m_ExcludedPeers); else msg = i2p::CreateRouterInfoDatabaseLookupMsg(m_Destination, i2p::context.GetIdentHash(), 0, m_IsExploratory, &m_ExcludedPeers); if(router) m_ExcludedPeers.insert (router->GetIdentHash ()); - m_CreationTime = i2p::util::GetSecondsSinceEpoch (); + m_LastRequestTime = i2p::util::GetMillisecondsSinceEpoch (); + m_NumAttempts++; + m_IsSentDirectly = false; return msg; } @@ -29,80 +57,155 @@ namespace data auto msg = i2p::CreateRouterInfoDatabaseLookupMsg (m_Destination, i2p::context.GetRouterInfo ().GetIdentHash () , 0, false, &m_ExcludedPeers); m_ExcludedPeers.insert (floodfill); - m_CreationTime = i2p::util::GetSecondsSinceEpoch (); + m_NumAttempts++; + m_LastRequestTime = i2p::util::GetMillisecondsSinceEpoch (); + m_IsSentDirectly = true; return msg; } + bool RequestedDestination::IsExcluded (const IdentHash& ident) const + { + return m_ExcludedPeers.count (ident); + } + void RequestedDestination::ClearExcludedPeers () { m_ExcludedPeers.clear (); } + void RequestedDestination::InvokeRequestComplete (std::shared_ptr r) + { + if (!m_RequestComplete.empty ()) + { + for (auto it: m_RequestComplete) + if (it != nullptr) it (r); + m_RequestComplete.clear (); + } + } + void RequestedDestination::Success (std::shared_ptr r) { - if (m_RequestComplete) - { - m_RequestComplete (r); - m_RequestComplete = nullptr; - } + if (m_IsActive) + { + m_IsActive = false; + InvokeRequestComplete (r); + } } void RequestedDestination::Fail () { - if (m_RequestComplete) - { - m_RequestComplete (nullptr); - m_RequestComplete = nullptr; - } + if (m_IsActive) + { + m_IsActive = false; + InvokeRequestComplete (nullptr); + } } + NetDbRequests::NetDbRequests (): + RunnableServiceWithWork ("NetDbReq"), + m_ManageRequestsTimer (GetIOService ()), m_ExploratoryTimer (GetIOService ()), + m_CleanupTimer (GetIOService ()), m_DiscoveredRoutersTimer (GetIOService ()), + m_Rng(i2p::util::GetMonotonicMicroseconds () % 1000000LL) + { + } + + NetDbRequests::~NetDbRequests () + { + Stop (); + } + void NetDbRequests::Start () { + if (!IsRunning ()) + { + StartIOService (); + ScheduleManageRequests (); + ScheduleCleanup (); + if (!i2p::context.IsHidden ()) + ScheduleExploratory (EXPLORATORY_REQUEST_INTERVAL); + } } void NetDbRequests::Stop () { - m_RequestedDestinations.clear (); + if (IsRunning ()) + { + m_ManageRequestsTimer.cancel (); + m_ExploratoryTimer.cancel (); + m_CleanupTimer.cancel (); + StopIOService (); + + m_RequestedDestinations.clear (); + m_RequestedDestinationsPool.CleanUpMt (); + } } - - std::shared_ptr NetDbRequests::CreateRequest (const IdentHash& destination, bool isExploratory, RequestedDestination::RequestComplete requestComplete) + void NetDbRequests::ScheduleCleanup () + { + m_CleanupTimer.expires_from_now (boost::posix_time::seconds(REQUESTED_DESTINATIONS_POOL_CLEANUP_INTERVAL)); + m_CleanupTimer.async_wait (std::bind (&NetDbRequests::HandleCleanupTimer, + this, std::placeholders::_1)); + } + + void NetDbRequests::HandleCleanupTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + m_RequestedDestinationsPool.CleanUpMt (); + ScheduleCleanup (); + } + } + + std::shared_ptr NetDbRequests::CreateRequest (const IdentHash& destination, + bool isExploratory, bool direct, RequestedDestination::RequestComplete requestComplete) { // request RouterInfo directly - auto dest = std::make_shared (destination, isExploratory); - dest->SetRequestComplete (requestComplete); - { - std::unique_lock l(m_RequestedDestinationsMutex); - if (!m_RequestedDestinations.insert (std::make_pair (destination, dest)).second) // not inserted - return nullptr; - } + auto dest = m_RequestedDestinationsPool.AcquireSharedMt (destination, isExploratory, direct); + if (requestComplete) + dest->AddRequestComplete (requestComplete); + + auto ret = m_RequestedDestinations.emplace (destination, dest); + if (!ret.second) // not inserted + { + dest->ResetRequestComplete (); // don't call requestComplete in destructor + dest = ret.first->second; // existing one + if (requestComplete) + { + if (dest->IsActive ()) + dest->AddRequestComplete (requestComplete); + else + requestComplete (nullptr); + } + return nullptr; + } return dest; } void NetDbRequests::RequestComplete (const IdentHash& ident, std::shared_ptr r) { - std::shared_ptr request; - { - std::unique_lock l(m_RequestedDestinationsMutex); - auto it = m_RequestedDestinations.find (ident); - if (it != m_RequestedDestinations.end ()) - { - request = it->second; - m_RequestedDestinations.erase (it); - } - } - if (request) - { - if (r) - request->Success (r); - else - request->Fail (); - } + boost::asio::post (GetIOService (), [this, ident, r]() + { + std::shared_ptr request; + auto it = m_RequestedDestinations.find (ident); + if (it != m_RequestedDestinations.end ()) + { + request = it->second; + if (request->IsExploratory ()) + m_RequestedDestinations.erase (it); + // otherwise cache for a while + } + if (request) + { + if (r) + request->Success (r); + else + request->Fail (); + } + }); } std::shared_ptr NetDbRequests::FindRequest (const IdentHash& ident) const { - std::unique_lock l(m_RequestedDestinationsMutex); auto it = m_RequestedDestinations.find (ident); if (it != m_RequestedDestinations.end ()) return it->second; @@ -111,51 +214,349 @@ namespace data void NetDbRequests::ManageRequests () { - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); - std::unique_lock l(m_RequestedDestinationsMutex); + uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); for (auto it = m_RequestedDestinations.begin (); it != m_RequestedDestinations.end ();) { auto& dest = it->second; - bool done = false; - if (ts < dest->GetCreationTime () + 60) // request is worthless after 1 minute - { - if (ts > dest->GetCreationTime () + 5) // no response for 5 seconds - { - auto count = dest->GetExcludedPeers ().size (); - if (!dest->IsExploratory () && count < 7) + if (dest->IsActive () || ts < dest->GetCreationTime () + REQUEST_CACHE_TIME) + { + if (!dest->IsExploratory ()) + { + // regular request + bool done = false; + if (ts < dest->GetCreationTime () + MAX_REQUEST_TIME) { - auto pool = i2p::tunnel::tunnels.GetExploratoryPool (); - auto outbound = pool->GetNextOutboundTunnel (); - auto inbound = pool->GetNextInboundTunnel (); - auto nextFloodfill = netdb.GetClosestFloodfill (dest->GetDestination (), dest->GetExcludedPeers ()); - if (nextFloodfill && outbound && inbound) - outbound->SendTunnelDataMsg (nextFloodfill->GetIdentHash (), 0, - dest->CreateRequestMessage (nextFloodfill, inbound)); - else - { - done = true; - if (!inbound) LogPrint (eLogWarning, "NetDbReq: No inbound tunnels"); - if (!outbound) LogPrint (eLogWarning, "NetDbReq: No outbound tunnels"); - if (!nextFloodfill) LogPrint (eLogWarning, "NetDbReq: No more floodfills"); - } + if (ts > dest->GetLastRequestTime () + (dest->IsSentDirectly () ? MIN_DIRECT_REQUEST_TIME : MIN_REQUEST_TIME)) + // try next floodfill if no response after min interval + done = !SendNextRequest (dest); } - else - { - if (!dest->IsExploratory ()) - LogPrint (eLogWarning, "NetDbReq: ", dest->GetDestination ().ToBase64 (), " not found after 7 attempts"); + else // request is expired done = true; - } - } - } - else // delete obsolete request - done = true; - - if (done) - it = m_RequestedDestinations.erase (it); + if (done) + dest->Fail (); + it++; + } + else + { + // exploratory + if (ts >= dest->GetCreationTime () + MAX_EXPLORATORY_REQUEST_TIME) + { + dest->Fail (); + it = m_RequestedDestinations.erase (it); // delete expired exploratory request right a way + } + else + it++; + } + } else - ++it; + it = m_RequestedDestinations.erase (it); } } -} -} + bool NetDbRequests::SendNextRequest (std::shared_ptr dest) + { + if (!dest || !dest->IsActive ()) return false; + bool ret = true; + auto count = dest->GetNumAttempts (); + if (!dest->IsExploratory () && count < MAX_NUM_REQUEST_ATTEMPTS) + { + auto nextFloodfill = netdb.GetClosestFloodfill (dest->GetDestination (), dest->GetExcludedPeers ()); + if (nextFloodfill) + { + bool direct = dest->IsDirect (); + if (direct && !nextFloodfill->IsReachableFrom (i2p::context.GetRouterInfo ()) && + !i2p::transport::transports.IsConnected (nextFloodfill->GetIdentHash ())) + direct = false; // floodfill can't be reached directly + auto s = shared_from_this (); + auto onDrop = [s, dest]() + { + if (dest->IsActive ()) + { + boost::asio::post (s->GetIOService (), [s, dest]() + { + if (dest->IsActive ()) s->SendNextRequest (dest); + }); + } + }; + if (direct) + { + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDbReq: Try ", dest->GetDestination ().ToBase64 (), " at ", count, " floodfill ", nextFloodfill->GetIdentHash ().ToBase64 (), " directly"); + auto msg = dest->CreateRequestMessage (nextFloodfill->GetIdentHash ()); + msg->onDrop = onDrop; + i2p::transport::transports.SendMessage (nextFloodfill->GetIdentHash (), msg); + } + else + { + auto pool = i2p::tunnel::tunnels.GetExploratoryPool (); + if (pool) + { + auto outbound = pool->GetNextOutboundTunnel (); + auto inbound = pool->GetNextInboundTunnel (); + if (nextFloodfill && outbound && inbound) + { + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDbReq: Try ", dest->GetDestination ().ToBase64 (), " at ", count, " floodfill ", nextFloodfill->GetIdentHash ().ToBase64 (), " through tunnels"); + auto msg = dest->CreateRequestMessage (nextFloodfill, inbound); + msg->onDrop = onDrop; + outbound->SendTunnelDataMsgTo (nextFloodfill->GetIdentHash (), 0, + i2p::garlic::WrapECIESX25519MessageForRouter (msg, nextFloodfill->GetIdentity ()->GetEncryptionPublicKey ())); + } + else + { + ret = false; + if (!inbound) LogPrint (eLogWarning, "NetDbReq: No inbound tunnels"); + if (!outbound) LogPrint (eLogWarning, "NetDbReq: No outbound tunnels"); + } + } + else + { + ret = false; + LogPrint (eLogWarning, "NetDbReq: Exploratory pool is not ready"); + } + } + } + else + { + ret = false; + LogPrint (eLogWarning, "NetDbReq: No more floodfills for ", dest->GetDestination ().ToBase64 (), " after ", count, "attempts"); + } + } + else + { + if (!dest->IsExploratory ()) + LogPrint (eLogWarning, "NetDbReq: ", dest->GetDestination ().ToBase64 (), " not found after ", MAX_NUM_REQUEST_ATTEMPTS," attempts"); + ret = false; + } + return ret; + } + + void NetDbRequests::ScheduleManageRequests () + { + m_ManageRequestsTimer.expires_from_now (boost::posix_time::milliseconds(MANAGE_REQUESTS_INTERVAL + + m_Rng () % MANAGE_REQUESTS_INTERVAL_VARIANCE)); + m_ManageRequestsTimer.async_wait (std::bind (&NetDbRequests::HandleManageRequestsTimer, + this, std::placeholders::_1)); + } + + void NetDbRequests::HandleManageRequestsTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + if (i2p::tunnel::tunnels.GetExploratoryPool ()) // expolratory pool is ready? + ManageRequests (); + ScheduleManageRequests (); + } + } + + void NetDbRequests::PostDatabaseSearchReplyMsg (std::shared_ptr msg) + { + boost::asio::post (GetIOService (), [this, msg]() + { + HandleDatabaseSearchReplyMsg (msg); + }); + } + + void NetDbRequests::HandleDatabaseSearchReplyMsg (std::shared_ptr msg) + { + const uint8_t * buf = msg->GetPayload (); + std::string key; + size_t num = buf[32]; // num + if (CheckLogLevel (eLogInfo)) + key = i2p::data::ByteStreamToBase64 (buf, 32); + LogPrint (eLogDebug, "NetDbReq: DatabaseSearchReply for ", key, " num=", num); + + IdentHash ident (buf); + bool isExploratory = false; + auto dest = FindRequest (ident); + if (dest && dest->IsActive ()) + { + isExploratory = dest->IsExploratory (); + if (!isExploratory && (num > 0 || dest->GetNumAttempts () < 3)) // before 3-rd attempt might be just bad luck + { + // try to send next requests + if (!SendNextRequest (dest)) + RequestComplete (ident, nullptr); + } + else + // no more requests for destination possible. delete it + RequestComplete (ident, nullptr); + } + else /*if (!m_FloodfillBootstrap)*/ + { + LogPrint (eLogInfo, "NetDbReq: Unsolicited or late database search reply for ", key); + return; + } + + // try responses + if (num > NETDB_MAX_NUM_SEARCH_REPLY_PEER_HASHES) + { + LogPrint (eLogWarning, "NetDbReq: Too many peer hashes ", num, " in database search reply, Reduced to ", NETDB_MAX_NUM_SEARCH_REPLY_PEER_HASHES); + num = NETDB_MAX_NUM_SEARCH_REPLY_PEER_HASHES; + } + if (isExploratory && !m_DiscoveredRouterHashes.empty ()) + { + // request outstanding routers + for (auto it: m_DiscoveredRouterHashes) + RequestRouter (it); + m_DiscoveredRouterHashes.clear (); + m_DiscoveredRoutersTimer.cancel (); + } + for (size_t i = 0; i < num; i++) + { + IdentHash router (buf + 33 + i*32); + if (CheckLogLevel (eLogDebug)) + LogPrint (eLogDebug, "NetDbReq: ", i, ": ", router.ToBase64 ()); + + if (isExploratory) + // postpone request + m_DiscoveredRouterHashes.push_back (router); + else + // send request right a way + RequestRouter (router); + } + if (isExploratory && !m_DiscoveredRouterHashes.empty ()) + ScheduleDiscoveredRoutersRequest (); + } + + void NetDbRequests::RequestRouter (const IdentHash& router) + { + auto r = netdb.FindRouter (router); + if (!r || i2p::util::GetMillisecondsSinceEpoch () > r->GetTimestamp () + 3600*1000LL) + { + // router with ident not found or too old (1 hour) + LogPrint (eLogDebug, "NetDbReq: Found new/outdated router. Requesting RouterInfo..."); + if (!IsRouterBanned (router)) + RequestDestination (router, nullptr, true); + else + LogPrint (eLogDebug, "NetDbReq: Router ", router.ToBase64 (), " is banned. Skipped"); + } + else + LogPrint (eLogDebug, "NetDbReq: [:|||:]"); + } + + void NetDbRequests::PostRequestDestination (const IdentHash& destination, + const RequestedDestination::RequestComplete& requestComplete, bool direct) + { + boost::asio::post (GetIOService (), [this, destination, requestComplete, direct]() + { + RequestDestination (destination, requestComplete, direct); + }); + } + + void NetDbRequests::RequestDestination (const IdentHash& destination, const RequestedDestination::RequestComplete& requestComplete, bool direct) + { + auto dest = CreateRequest (destination, false, direct, requestComplete); // non-exploratory + if (dest) + { + if (!SendNextRequest (dest)) + RequestComplete (destination, nullptr); + } + else + LogPrint (eLogWarning, "NetDbReq: Destination ", destination.ToBase64(), " is requested already or cached"); + } + + void NetDbRequests::Explore (int numDestinations) + { + // new requests + auto exploratoryPool = i2p::tunnel::tunnels.GetExploratoryPool (); + auto outbound = exploratoryPool ? exploratoryPool->GetNextOutboundTunnel () : nullptr; + auto inbound = exploratoryPool ? exploratoryPool->GetNextInboundTunnel () : nullptr; + bool throughTunnels = outbound && inbound; + + uint8_t randomHash[32]; + std::vector msgs; + LogPrint (eLogInfo, "NetDbReq: Exploring new ", numDestinations, " routers ..."); + for (int i = 0; i < numDestinations; i++) + { + RAND_bytes (randomHash, 32); + auto dest = CreateRequest (randomHash, true, !throughTunnels); // exploratory + if (!dest) + { + LogPrint (eLogWarning, "NetDbReq: Exploratory destination is requested already"); + return; + } + auto floodfill = netdb.GetClosestFloodfill (randomHash, dest->GetExcludedPeers ()); + if (floodfill) + { + if (i2p::transport::transports.IsConnected (floodfill->GetIdentHash ())) + throughTunnels = false; + if (throughTunnels) + { + msgs.push_back (i2p::tunnel::TunnelMessageBlock + { + i2p::tunnel::eDeliveryTypeRouter, + floodfill->GetIdentHash (), 0, + CreateDatabaseStoreMsg () // tell floodfill about us + }); + msgs.push_back (i2p::tunnel::TunnelMessageBlock + { + i2p::tunnel::eDeliveryTypeRouter, + floodfill->GetIdentHash (), 0, + dest->CreateRequestMessage (floodfill, inbound) // explore + }); + } + else + i2p::transport::transports.SendMessage (floodfill->GetIdentHash (), dest->CreateRequestMessage (floodfill->GetIdentHash ())); + } + else + RequestComplete (randomHash, nullptr); + } + if (throughTunnels && msgs.size () > 0) + outbound->SendTunnelDataMsgs (msgs); + } + + void NetDbRequests::ScheduleExploratory (uint64_t interval) + { + m_ExploratoryTimer.expires_from_now (boost::posix_time::seconds(interval)); + m_ExploratoryTimer.async_wait (std::bind (&NetDbRequests::HandleExploratoryTimer, + this, std::placeholders::_1)); + } + + void NetDbRequests::HandleExploratoryTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto numRouters = netdb.GetNumRouters (); + auto nextExploratoryInterval = numRouters < 2500 ? (EXPLORATORY_REQUEST_INTERVAL + m_Rng () % EXPLORATORY_REQUEST_INTERVAL)/2 : + EXPLORATORY_REQUEST_INTERVAL + m_Rng () % EXPLORATORY_REQUEST_INTERVAL_VARIANCE; + if (numRouters) + { + if (i2p::transport::transports.IsOnline () && i2p::transport::transports.IsRunning ()) + { + // explore only if online + numRouters = 800/numRouters; + if (numRouters < 1) numRouters = 1; + if (numRouters > 9) numRouters = 9; + Explore (numRouters); + } + } + else + LogPrint (eLogError, "NetDbReq: No known routers, reseed seems to be totally failed"); + ScheduleExploratory (nextExploratoryInterval); + } + } + + void NetDbRequests::ScheduleDiscoveredRoutersRequest () + { + m_DiscoveredRoutersTimer.expires_from_now (boost::posix_time::milliseconds( + DISCOVERED_REQUEST_INTERVAL + m_Rng () % DISCOVERED_REQUEST_INTERVAL_VARIANCE)); + m_DiscoveredRoutersTimer.async_wait (std::bind (&NetDbRequests::HandleDiscoveredRoutersTimer, + this, std::placeholders::_1)); + } + + void NetDbRequests::HandleDiscoveredRoutersTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + if (!m_DiscoveredRouterHashes.empty ()) + { + RequestRouter (m_DiscoveredRouterHashes.front ()); + m_DiscoveredRouterHashes.pop_front (); + if (!m_DiscoveredRouterHashes.empty ()) // more hashes to request + ScheduleDiscoveredRoutersRequest (); + } + } + } +} +} diff --git a/libi2pd/NetDbRequests.h b/libi2pd/NetDbRequests.h index 7a7a55ab..53af2c6a 100644 --- a/libi2pd/NetDbRequests.h +++ b/libi2pd/NetDbRequests.h @@ -1,69 +1,131 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef NETDB_REQUESTS_H__ #define NETDB_REQUESTS_H__ +#include #include -#include -#include +#include +#include +#include +#include #include "Identity.h" #include "RouterInfo.h" +#include "util.h" namespace i2p { namespace data { + const int MAX_NUM_REQUEST_ATTEMPTS = 5; + const uint64_t MANAGE_REQUESTS_INTERVAL = 400; // in milliseconds + const uint64_t MANAGE_REQUESTS_INTERVAL_VARIANCE = 300; // in milliseconds + const uint64_t MIN_REQUEST_TIME = 1200; // in milliseconds + const uint64_t MAX_REQUEST_TIME = MAX_NUM_REQUEST_ATTEMPTS * (MIN_REQUEST_TIME + MANAGE_REQUESTS_INTERVAL + MANAGE_REQUESTS_INTERVAL_VARIANCE); + const uint64_t MIN_DIRECT_REQUEST_TIME = 600; // in milliseconds + const uint64_t EXPLORATORY_REQUEST_INTERVAL = 55; // in seconds + const uint64_t EXPLORATORY_REQUEST_INTERVAL_VARIANCE = 170; // in seconds + const uint64_t DISCOVERED_REQUEST_INTERVAL = 360; // in milliseconds + const uint64_t DISCOVERED_REQUEST_INTERVAL_VARIANCE = 540; // in milliseconds + const uint64_t MAX_EXPLORATORY_REQUEST_TIME = 30000; // in milliseconds + const uint64_t REQUEST_CACHE_TIME = MAX_REQUEST_TIME + 40000; // in milliseconds + const uint64_t REQUESTED_DESTINATIONS_POOL_CLEANUP_INTERVAL = 191; // in seconds + class RequestedDestination { public: typedef std::function)> RequestComplete; - RequestedDestination (const IdentHash& destination, bool isExploratory = false): - m_Destination (destination), m_IsExploratory (isExploratory), m_CreationTime (0) {}; - ~RequestedDestination () { if (m_RequestComplete) m_RequestComplete (nullptr); }; + RequestedDestination (const IdentHash& destination, bool isExploratory = false, bool direct = true); + ~RequestedDestination (); const IdentHash& GetDestination () const { return m_Destination; }; - int GetNumExcludedPeers () const { return m_ExcludedPeers.size (); }; - const std::set& GetExcludedPeers () { return m_ExcludedPeers; }; + const std::unordered_set& GetExcludedPeers () const { return m_ExcludedPeers; }; + int GetNumAttempts () const { return m_NumAttempts; }; void ClearExcludedPeers (); bool IsExploratory () const { return m_IsExploratory; }; - bool IsExcluded (const IdentHash& ident) const { return m_ExcludedPeers.count (ident); }; + bool IsDirect () const { return m_IsDirect; }; + bool IsActive () const { return m_IsActive; }; + bool IsSentDirectly () const { return m_IsSentDirectly; }; + bool IsExcluded (const IdentHash& ident) const; uint64_t GetCreationTime () const { return m_CreationTime; }; + uint64_t GetLastRequestTime () const { return m_LastRequestTime; }; std::shared_ptr CreateRequestMessage (std::shared_ptr, std::shared_ptr replyTunnel); std::shared_ptr CreateRequestMessage (const IdentHash& floodfill); - void SetRequestComplete (const RequestComplete& requestComplete) { m_RequestComplete = requestComplete; }; - bool IsRequestComplete () const { return m_RequestComplete != nullptr; }; + void AddRequestComplete (const RequestComplete& requestComplete) { m_RequestComplete.push_back (requestComplete); }; + void ResetRequestComplete () { m_RequestComplete.clear (); }; void Success (std::shared_ptr r); void Fail (); + private: + + void InvokeRequestComplete (std::shared_ptr r); + private: IdentHash m_Destination; - bool m_IsExploratory; - std::set m_ExcludedPeers; - uint64_t m_CreationTime; - RequestComplete m_RequestComplete; + bool m_IsExploratory, m_IsDirect, m_IsActive, m_IsSentDirectly; + std::unordered_set m_ExcludedPeers; + uint64_t m_CreationTime, m_LastRequestTime; // in milliseconds + std::list m_RequestComplete; + int m_NumAttempts; }; - class NetDbRequests + class NetDbRequests: public std::enable_shared_from_this, + private i2p::util::RunnableServiceWithWork { public: + NetDbRequests (); + ~NetDbRequests (); + void Start (); void Stop (); - std::shared_ptr CreateRequest (const IdentHash& destination, bool isExploratory, RequestedDestination::RequestComplete requestComplete = nullptr); void RequestComplete (const IdentHash& ident, std::shared_ptr r); - std::shared_ptr FindRequest (const IdentHash& ident) const; - void ManageRequests (); + void PostDatabaseSearchReplyMsg (std::shared_ptr msg); + void PostRequestDestination (const IdentHash& destination, const RequestedDestination::RequestComplete& requestComplete, bool direct); + + private: + std::shared_ptr CreateRequest (const IdentHash& destination, bool isExploratory, + bool direct = false, RequestedDestination::RequestComplete requestComplete = nullptr); + std::shared_ptr FindRequest (const IdentHash& ident) const; + bool SendNextRequest (std::shared_ptr dest); + + void HandleDatabaseSearchReplyMsg (std::shared_ptr msg); + void RequestRouter (const IdentHash& router); + void RequestDestination (const IdentHash& destination, const RequestedDestination::RequestComplete& requestComplete, bool direct); + void Explore (int numDestinations); + void ManageRequests (); + // timer + void ScheduleManageRequests (); + void HandleManageRequestsTimer (const boost::system::error_code& ecode); + void ScheduleExploratory (uint64_t interval); + void HandleExploratoryTimer (const boost::system::error_code& ecode); + void ScheduleCleanup (); + void HandleCleanupTimer (const boost::system::error_code& ecode); + void ScheduleDiscoveredRoutersRequest (); + void HandleDiscoveredRoutersTimer (const boost::system::error_code& ecode); + private: - mutable std::mutex m_RequestedDestinationsMutex; - std::map > m_RequestedDestinations; + i2p::util::MemoryPoolMt m_RequestedDestinationsPool; + std::unordered_map > m_RequestedDestinations; + std::list m_DiscoveredRouterHashes; + boost::asio::deadline_timer m_ManageRequestsTimer, m_ExploratoryTimer, + m_CleanupTimer, m_DiscoveredRoutersTimer; + std::mt19937 m_Rng; }; } } #endif - diff --git a/libi2pd/Poly1305.cpp b/libi2pd/Poly1305.cpp deleted file mode 100644 index bf94c9a9..00000000 --- a/libi2pd/Poly1305.cpp +++ /dev/null @@ -1,25 +0,0 @@ -#include "Poly1305.h" -/** - This code is licensed under the MCGSI Public License - Copyright 2018 Jeff Becker - - Kovri go write your own code - - */ - -#if !OPENSSL_AEAD_CHACHA20_POLY1305 -namespace i2p -{ -namespace crypto -{ - - void Poly1305HMAC(uint64_t * out, const uint64_t * key, const uint8_t * buf, std::size_t sz) - { - Poly1305 p(key); - p.Update(buf, sz); - p.Finish(out); - } -} -} -#endif - diff --git a/libi2pd/Poly1305.h b/libi2pd/Poly1305.h deleted file mode 100644 index 800fbfd9..00000000 --- a/libi2pd/Poly1305.h +++ /dev/null @@ -1,261 +0,0 @@ -/** - This code is licensed under the MCGSI Public License - Copyright 2018 Jeff Becker - - Kovri go write your own code - - */ -#ifndef LIBI2PD_POLY1305_H -#define LIBI2PD_POLY1305_H -#include -#include -#include "Crypto.h" - -#if !OPENSSL_AEAD_CHACHA20_POLY1305 -namespace i2p -{ -namespace crypto -{ - const std::size_t POLY1305_DIGEST_BYTES = 16; - const std::size_t POLY1305_DIGEST_DWORDS = 4; - const std::size_t POLY1305_KEY_BYTES = 32; - const std::size_t POLY1305_KEY_DWORDS = 8; - const std::size_t POLY1305_BLOCK_BYTES = 16; - - namespace poly1305 - { - - struct LongBlock - { - unsigned long data[17]; - operator unsigned long * () - { - return data; - } - }; - - struct Block - { - unsigned char data[17]; - - void Zero() - { - memset(data, 0, sizeof(data)); - } - - operator uint8_t * () - { - return data; - } - - Block & operator += (const Block & other) - { - unsigned short u; - unsigned int i; - for(u = 0, i = 0; i < 17; i++) - { - u += (unsigned short) data[i] + (unsigned short) other.data[i]; - data[i] = (unsigned char) u & 0xff; - u >>= 8; - } - return *this; - } - - Block & operator %=(const LongBlock & other) - { - unsigned long u; - unsigned int i; - u = 0; - for (i = 0; i < 16; i++) { - u += other.data[i]; - data[i] = (unsigned char)u & 0xff; - u >>= 8; - } - u += other.data[16]; - data[16] = (unsigned char)u & 0x03; - u >>= 2; - u += (u << 2); - for (i = 0; i < 16; i++) { - u += data[i]; - data[i] = (unsigned char)u & 0xff; - u >>= 8; - } - data[16] += (unsigned char)u; - return *this; - } - - Block & operator = (const Block & other) - { - memcpy(data, other.data, sizeof(data)); - return *this; - } - - Block & operator ~ () - { - static const Block minusp = { - 0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0xfc - }; - Block orig; - unsigned char neg; - unsigned int i; - orig = *this; - *this += minusp; - neg = -(data[16] >> 7); - for(i = 0; i < 17; i++) - data[i] ^= neg & (orig.data[i] ^ data[i]); - - return *this; - } - - void PutKey(const uint64_t * key_l) - { - const uint8_t * key = (const uint8_t*) key_l; - data[0] = key[0] & 0xff; - data[1] = key[1] & 0xff; - data[2] = key[2] & 0xff; - data[3] = key[3] & 0x0f; - data[4] = key[4] & 0xfc; - data[5] = key[5] & 0xff; - data[6] = key[6] & 0xff; - data[7] = key[7] & 0x0f; - data[8] = key[8] & 0xfc; - data[9] = key[9] & 0xff; - data[10] = key[10] & 0xff; - data[11] = key[11] & 0x0f; - data[12] = key[12] & 0xfc; - data[13] = key[13] & 0xff; - data[14] = key[14] & 0xff; - data[15] = key[15] & 0x0f; - data[16] = 0; - } - - template - void Put(const Int_t * d, uint8_t last=0) - { - memcpy(data, d, 16); - data[16] = last; - } - }; - - struct Buffer - { - uint8_t data[POLY1305_BLOCK_BYTES]; - - operator uint8_t * () - { - return data; - } - }; - } - - struct Poly1305 - { - Poly1305(const uint64_t * key) - { - m_Leftover = 0; - m_H.Zero(); - m_Final = 0; - m_R.PutKey(key); - m_Pad.Put(key + 2); - } - - void Update(const uint8_t * buf, size_t sz) - { - // process leftover - if(m_Leftover) - { - size_t want = POLY1305_BLOCK_BYTES - m_Leftover; - if(want > sz) want = sz; - memcpy(m_Buffer + m_Leftover, buf, want); - sz -= want; - buf += want; - m_Leftover += want; - if(m_Leftover < POLY1305_BLOCK_BYTES) return; - Blocks(m_Buffer, POLY1305_BLOCK_BYTES); - m_Leftover = 0; - } - // process blocks - if(sz >= POLY1305_BLOCK_BYTES) - { - size_t want = (sz & ~(POLY1305_BLOCK_BYTES - 1)); - Blocks(buf, want); - buf += want; - sz -= want; - } - // leftover - if(sz) - { - memcpy(m_Buffer+m_Leftover, buf, sz); - m_Leftover += sz; - } - } - - void Blocks(const uint8_t * buf, size_t sz) - { - const unsigned char hi = m_Final ^ 1; - while (sz >= POLY1305_BLOCK_BYTES) { - unsigned long u; - unsigned int i, j; - m_Msg.Put(buf, hi); - /* h += m */ - m_H += m_Msg; - - /* h *= r */ - for (i = 0; i < 17; i++) { - u = 0; - for (j = 0; j <= i ; j++) { - u += (unsigned short)m_H.data[j] * m_R.data[i - j]; - } - for (j = i + 1; j < 17; j++) { - unsigned long v = (unsigned short)m_H.data[j] * m_R.data[i + 17 - j]; - v = ((v << 8) + (v << 6)); /* v *= (5 << 6); */ - u += v; - } - m_HR[i] = u; - } - /* (partial) h %= p */ - m_H %= m_HR; - buf += POLY1305_BLOCK_BYTES; - sz -= POLY1305_BLOCK_BYTES; - } - } - - void Finish(uint64_t * out) - { - // process leftovers - if(m_Leftover) - { - size_t idx = m_Leftover; - m_Buffer[idx++] = 1; - for(; idx < POLY1305_BLOCK_BYTES; idx++) - m_Buffer[idx] = 0; - m_Final = 1; - Blocks(m_Buffer, POLY1305_BLOCK_BYTES); - } - - // freeze H - ~m_H; - // add pad - m_H += m_Pad; - // copy digest - memcpy(out, m_H, 16); - } - - size_t m_Leftover; - poly1305::Buffer m_Buffer; - poly1305::Block m_H; - poly1305::Block m_R; - poly1305::Block m_Pad; - poly1305::Block m_Msg; - poly1305::LongBlock m_HR; - uint8_t m_Final; - }; - void Poly1305HMAC(uint64_t * out, const uint64_t * key, const uint8_t * buf, std::size_t sz); - -} -} -#endif - -#endif diff --git a/libi2pd/PostQuantum.cpp b/libi2pd/PostQuantum.cpp new file mode 100644 index 00000000..fa268828 --- /dev/null +++ b/libi2pd/PostQuantum.cpp @@ -0,0 +1,160 @@ +/* +* Copyright (c) 2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include "Log.h" +#include "PostQuantum.h" + +#if OPENSSL_PQ + +#include +#include + +namespace i2p +{ +namespace crypto +{ + MLKEMKeys::MLKEMKeys (MLKEMTypes type): + m_Name (std::get<0>(MLKEMS[type])), m_KeyLen (std::get<1>(MLKEMS[type])), + m_CTLen (std::get<2>(MLKEMS[type])), m_Pkey (nullptr) + { + } + + MLKEMKeys::~MLKEMKeys () + { + if (m_Pkey) EVP_PKEY_free (m_Pkey); + } + + void MLKEMKeys::GenerateKeys () + { + if (m_Pkey) EVP_PKEY_free (m_Pkey); + m_Pkey = EVP_PKEY_Q_keygen(NULL, NULL, m_Name.c_str ()); + } + + void MLKEMKeys::GetPublicKey (uint8_t * pub) const + { + if (m_Pkey) + { + size_t len = m_KeyLen; + EVP_PKEY_get_octet_string_param (m_Pkey, OSSL_PKEY_PARAM_PUB_KEY, pub, m_KeyLen, &len); + } + } + + void MLKEMKeys::SetPublicKey (const uint8_t * pub) + { + if (m_Pkey) + { + EVP_PKEY_free (m_Pkey); + m_Pkey = nullptr; + } + OSSL_PARAM params[] = + { + OSSL_PARAM_octet_string (OSSL_PKEY_PARAM_PUB_KEY, (uint8_t *)pub, m_KeyLen), + OSSL_PARAM_END + }; + EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, m_Name.c_str (), NULL); + if (ctx) + { + EVP_PKEY_fromdata_init (ctx); + EVP_PKEY_fromdata (ctx, &m_Pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY, params); + EVP_PKEY_CTX_free (ctx); + } + else + LogPrint (eLogError, "MLKEM can't create PKEY context"); + } + + void MLKEMKeys::Encaps (uint8_t * ciphertext, uint8_t * shared) + { + if (!m_Pkey) return; + auto ctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL); + if (ctx) + { + EVP_PKEY_encapsulate_init (ctx, NULL); + size_t len = m_CTLen, sharedLen = 32; + EVP_PKEY_encapsulate (ctx, ciphertext, &len, shared, &sharedLen); + EVP_PKEY_CTX_free (ctx); + } + else + LogPrint (eLogError, "MLKEM can't create PKEY context"); + } + + void MLKEMKeys::Decaps (const uint8_t * ciphertext, uint8_t * shared) + { + if (!m_Pkey) return; + auto ctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL); + if (ctx) + { + EVP_PKEY_decapsulate_init (ctx, NULL); + size_t sharedLen = 32; + EVP_PKEY_decapsulate (ctx, shared, &sharedLen, ciphertext, m_CTLen); + EVP_PKEY_CTX_free (ctx); + } + else + LogPrint (eLogError, "MLKEM can't create PKEY context"); + } + + std::unique_ptr CreateMLKEMKeys (i2p::data::CryptoKeyType type) + { + if (type <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD || + type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD > (int)MLKEMS.size ()) return nullptr; + return std::make_unique((MLKEMTypes)(type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD - 1)); + } + + static constexpr std::array, std::array >, 3> NoiseIKInitMLKEMKeys = + { + std::make_pair + ( + std::array + { + 0xb0, 0x8f, 0xb1, 0x73, 0x92, 0x66, 0xc9, 0x90, 0x45, 0x7f, 0xdd, 0xc6, 0x4e, 0x55, 0x40, 0xd8, + 0x0a, 0x37, 0x99, 0x06, 0x92, 0x2a, 0x78, 0xc4, 0xb1, 0xef, 0x86, 0x06, 0xd0, 0x15, 0x9f, 0x4d + }, // SHA256("Noise_IKhfselg2_25519+MLKEM512_ChaChaPoly_SHA256") + std::array + { + 0x95, 0x8d, 0xf6, 0x6c, 0x95, 0xce, 0xa9, 0xf7, 0x42, 0xfc, 0xfa, 0x62, 0x71, 0x36, 0x1e, 0xa7, + 0xdc, 0x7a, 0xc0, 0x75, 0x01, 0xcf, 0xf9, 0xfc, 0x9f, 0xdb, 0x4c, 0x68, 0x3a, 0x53, 0x49, 0xeb + } // SHA256 (first) + ), + std::make_pair + ( + std::array + { + 0x36, 0x03, 0x90, 0x2d, 0xf9, 0xa2, 0x2a, 0x5e, 0xc9, 0x3d, 0xdb, 0x8f, 0xa8, 0x1b, 0xdb, 0x4b, + 0xae, 0x9d, 0x93, 0x9c, 0xdf, 0xaf, 0xde, 0x55, 0x49, 0x13, 0xfe, 0x98, 0xf8, 0x4a, 0xd4, 0xbd + }, // SHA256("Noise_IKhfselg2_25519+MLKEM768_ChaChaPoly_SHA256") + std::array + { + 0x15, 0x44, 0x89, 0xbf, 0x30, 0xf0, 0xc9, 0x77, 0x66, 0x10, 0xcb, 0xb1, 0x57, 0x3f, 0xab, 0x68, + 0x79, 0x57, 0x39, 0x57, 0x0a, 0xe7, 0xc0, 0x31, 0x8a, 0xa2, 0x96, 0xef, 0xbf, 0xa9, 0x6a, 0xbb + } // SHA256 (first) + ), + std::make_pair + ( + std::array + { + 0x86, 0xa5, 0x36, 0x44, 0xc6, 0x12, 0xd5, 0x71, 0xa1, 0x2d, 0xd8, 0xb6, 0x0a, 0x00, 0x9f, 0x2c, + 0x1a, 0xa8, 0x7d, 0x22, 0xa4, 0xff, 0x2b, 0xcd, 0x61, 0x34, 0x97, 0x6d, 0xa1, 0x49, 0xeb, 0x4a + }, // SHA256("Noise_IKhfselg2_25519+MLKEM1024_ChaChaPoly_SHA256") + std::array + { + 0x42, 0x0d, 0xc2, 0x1c, 0x7b, 0x18, 0x61, 0xb7, 0x4a, 0x04, 0x3d, 0xae, 0x0f, 0xdc, 0xf2, 0x71, + 0xb9, 0xba, 0x19, 0xbb, 0xbd, 0x5f, 0xd4, 0x9c, 0x3f, 0x4b, 0x01, 0xed, 0x6d, 0x13, 0x1d, 0xa2 + } // SHA256 (first) + ) + }; + + void InitNoiseIKStateMLKEM (NoiseSymmetricState& state, i2p::data::CryptoKeyType type, const uint8_t * pub) + { + if (type <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD || + type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD > (int)NoiseIKInitMLKEMKeys.size ()) return; + auto ind = type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD - 1; + state.Init (NoiseIKInitMLKEMKeys[ind].first.data(), NoiseIKInitMLKEMKeys[ind].second.data(), pub); + } +} +} + +#endif \ No newline at end of file diff --git a/libi2pd/PostQuantum.h b/libi2pd/PostQuantum.h new file mode 100644 index 00000000..f426d661 --- /dev/null +++ b/libi2pd/PostQuantum.h @@ -0,0 +1,88 @@ +/* +* Copyright (c) 2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef POST_QUANTUM_H__ +#define POST_QUANTUM_H__ + +#include +#include +#include +#include +#include "Crypto.h" +#include "Identity.h" + +#if OPENSSL_PQ + +namespace i2p +{ +namespace crypto +{ + enum MLKEMTypes + { + eMLKEM512 = 0, + eMLKEM768, + eMLKEM1024 + }; + + constexpr size_t MLKEM512_KEY_LENGTH = 800; + constexpr size_t MLKEM512_CIPHER_TEXT_LENGTH = 768; + constexpr size_t MLKEM768_KEY_LENGTH = 1184; + constexpr size_t MLKEM768_CIPHER_TEXT_LENGTH = 1088; + constexpr size_t MLKEM1024_KEY_LENGTH = 1568; + constexpr size_t MLKEM1024_CIPHER_TEXT_LENGTH = 1568; + + constexpr std::array, 3> MLKEMS = + { + std::make_tuple ("ML-KEM-512", MLKEM512_KEY_LENGTH, MLKEM512_CIPHER_TEXT_LENGTH), + std::make_tuple ("ML-KEM-768", MLKEM768_KEY_LENGTH, MLKEM768_CIPHER_TEXT_LENGTH), + std::make_tuple ("ML-KEM-1024", MLKEM1024_KEY_LENGTH, MLKEM1024_CIPHER_TEXT_LENGTH) + }; + + constexpr size_t GetMLKEMPublicKeyLen (i2p::data::CryptoKeyType type) + { + if (type <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD || + type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD > (int)MLKEMS.size ()) return 0; + return std::get<1>(MLKEMS[type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD - 1]); + } + + constexpr size_t GetMLKEMCipherTextLen (i2p::data::CryptoKeyType type) + { + if (type <= i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD || + type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD > (int)MLKEMS.size ()) return 0; + return std::get<2>(MLKEMS[type - i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD - 1]); + } + + class MLKEMKeys + { + public: + + MLKEMKeys (MLKEMTypes type); + ~MLKEMKeys (); + + void GenerateKeys (); + void GetPublicKey (uint8_t * pub) const; + void SetPublicKey (const uint8_t * pub); + void Encaps (uint8_t * ciphertext, uint8_t * shared); + void Decaps (const uint8_t * ciphertext, uint8_t * shared); + + private: + + const std::string m_Name; + const size_t m_KeyLen, m_CTLen; + EVP_PKEY * m_Pkey; + }; + + std::unique_ptr CreateMLKEMKeys (i2p::data::CryptoKeyType type); + + void InitNoiseIKStateMLKEM (NoiseSymmetricState& state, i2p::data::CryptoKeyType type, const uint8_t * pub); // Noise_IK (ratchets) PQ ML-KEM5 +} +} + +#endif + +#endif diff --git a/libi2pd/Profiling.cpp b/libi2pd/Profiling.cpp index 3840eb32..fe7f9905 100644 --- a/libi2pd/Profiling.cpp +++ b/libi2pd/Profiling.cpp @@ -1,32 +1,48 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include +#include +#include +#include +#include #include #include #include "Base.h" #include "FS.h" #include "Log.h" +#include "Timestamp.h" +#include "NetDb.hpp" #include "Profiling.h" namespace i2p { namespace data { - i2p::fs::HashedStorage m_ProfilesStorage("peerProfiles", "p", "profile-", "txt"); - + static i2p::fs::HashedStorage g_ProfilesStorage("peerProfiles", "p", "profile-", "txt"); + static std::unordered_map > g_Profiles; + static std::mutex g_ProfilesMutex; + static std::list)> > > g_PostponedUpdates; + static std::mutex g_PostponedUpdatesMutex; + RouterProfile::RouterProfile (): - m_LastUpdateTime (boost::posix_time::second_clock::local_time()), - m_NumTunnelsAgreed (0), m_NumTunnelsDeclined (0), m_NumTunnelsNonReplied (0), - m_NumTimesTaken (0), m_NumTimesRejected (0) + m_IsUpdated (false), m_LastDeclineTime (0), m_LastUnreachableTime (0), + m_LastUpdateTime (i2p::util::GetSecondsSinceEpoch ()), m_LastAccessTime (0), + m_LastPersistTime (0), m_NumTunnelsAgreed (0), m_NumTunnelsDeclined (0), + m_NumTunnelsNonReplied (0),m_NumTimesTaken (0), m_NumTimesRejected (0), + m_HasConnected (false), m_IsDuplicated (false) { } - boost::posix_time::ptime RouterProfile::GetTime () const - { - return boost::posix_time::second_clock::local_time(); - } - void RouterProfile::UpdateTime () { - m_LastUpdateTime = GetTime (); + m_LastUpdateTime = i2p::util::GetSecondsSinceEpoch (); + m_IsUpdated = true; } void RouterProfile::Save (const IdentHash& identHash) @@ -39,15 +55,20 @@ namespace data boost::property_tree::ptree usage; usage.put (PEER_PROFILE_USAGE_TAKEN, m_NumTimesTaken); usage.put (PEER_PROFILE_USAGE_REJECTED, m_NumTimesRejected); + usage.put (PEER_PROFILE_USAGE_CONNECTED, m_HasConnected); + if (m_IsDuplicated) + usage.put (PEER_PROFILE_USAGE_DUPLICATED, true); // fill property tree boost::property_tree::ptree pt; - pt.put (PEER_PROFILE_LAST_UPDATE_TIME, boost::posix_time::to_simple_string (m_LastUpdateTime)); + pt.put (PEER_PROFILE_LAST_UPDATE_TIMESTAMP, m_LastUpdateTime); + if (m_LastUnreachableTime) + pt.put (PEER_PROFILE_LAST_UNREACHABLE_TIME, m_LastUnreachableTime); pt.put_child (PEER_PROFILE_SECTION_PARTICIPATION, participation); pt.put_child (PEER_PROFILE_SECTION_USAGE, usage); // save to file std::string ident = identHash.ToBase64 (); - std::string path = m_ProfilesStorage.Path(ident); + std::string path = g_ProfilesStorage.Path(ident); try { boost::property_tree::write_ini (path, pt); @@ -59,13 +80,14 @@ namespace data void RouterProfile::Load (const IdentHash& identHash) { + m_IsUpdated = false; std::string ident = identHash.ToBase64 (); - std::string path = m_ProfilesStorage.Path(ident); + std::string path = g_ProfilesStorage.Path(ident); boost::property_tree::ptree pt; if (!i2p::fs::Exists(path)) { - LogPrint(eLogWarning, "Profiling: no profile yet for ", ident); + LogPrint(eLogWarning, "Profiling: No profile yet for ", ident); return; } @@ -81,11 +103,24 @@ namespace data try { - auto t = pt.get (PEER_PROFILE_LAST_UPDATE_TIME, ""); - if (t.length () > 0) - m_LastUpdateTime = boost::posix_time::time_from_string (t); - if ((GetTime () - m_LastUpdateTime).hours () < PEER_PROFILE_EXPIRATION_TIMEOUT) + auto ts = pt.get (PEER_PROFILE_LAST_UPDATE_TIMESTAMP, 0); + if (ts) + m_LastUpdateTime = ts; + else + { + // try old lastupdatetime + auto ut = pt.get (PEER_PROFILE_LAST_UPDATE_TIME, ""); + if (ut.length () > 0) + { + std::istringstream ss (ut); std::tm t; + ss >> std::get_time(&t, "%Y-%b-%d %H:%M:%S"); + if (!ss.fail()) + m_LastUpdateTime = mktime (&t); // t is local time + } + } + if (i2p::util::GetSecondsSinceEpoch () - m_LastUpdateTime < PEER_PROFILE_EXPIRATION_TIMEOUT) { + m_LastUnreachableTime = pt.get (PEER_PROFILE_LAST_UNREACHABLE_TIME, 0); try { // read participations @@ -104,10 +139,12 @@ namespace data auto usage = pt.get_child (PEER_PROFILE_SECTION_USAGE); m_NumTimesTaken = usage.get (PEER_PROFILE_USAGE_TAKEN, 0); m_NumTimesRejected = usage.get (PEER_PROFILE_USAGE_REJECTED, 0); + m_HasConnected = usage.get (PEER_PROFILE_USAGE_CONNECTED, false); + m_IsDuplicated = usage.get (PEER_PROFILE_USAGE_DUPLICATED, false); } catch (boost::property_tree::ptree_bad_path& ex) { - LogPrint (eLogWarning, "Missing section ", PEER_PROFILE_SECTION_USAGE, " in profile for ", ident); + LogPrint (eLogWarning, "Profiling: Missing section ", PEER_PROFILE_SECTION_USAGE, " in profile for ", ident); } } else @@ -123,17 +160,44 @@ namespace data { UpdateTime (); if (ret > 0) + { m_NumTunnelsDeclined++; + m_LastDeclineTime = i2p::util::GetSecondsSinceEpoch (); + } else - m_NumTunnelsAgreed++; + { + m_NumTunnelsAgreed++; + m_LastDeclineTime = 0; + } } void RouterProfile::TunnelNonReplied () { - m_NumTunnelsNonReplied++; + m_NumTunnelsNonReplied++; + UpdateTime (); + if (m_NumTunnelsNonReplied > 2*m_NumTunnelsAgreed && m_NumTunnelsNonReplied > 3) + { + m_LastDeclineTime = i2p::util::GetSecondsSinceEpoch (); + } + } + + void RouterProfile::Unreachable (bool unreachable) + { + m_LastUnreachableTime = unreachable ? i2p::util::GetSecondsSinceEpoch () : 0; + UpdateTime (); + } + + void RouterProfile::Connected () + { + m_HasConnected = true; UpdateTime (); } + void RouterProfile::Duplicated () + { + m_IsDuplicated = true; + } + bool RouterProfile::IsLowPartcipationRate () const { return 4*m_NumTunnelsAgreed < m_NumTunnelsDeclined; // < 20% rate @@ -145,8 +209,21 @@ namespace data return m_NumTunnelsNonReplied > 10*(total + 1); } + bool RouterProfile::IsDeclinedRecently (uint64_t ts) + { + if (!m_LastDeclineTime) return false; + if (ts > m_LastDeclineTime + PEER_PROFILE_DECLINED_RECENTLY_INTERVAL || + ts + PEER_PROFILE_DECLINED_RECENTLY_INTERVAL < m_LastDeclineTime) + m_LastDeclineTime = 0; + return (bool)m_LastDeclineTime; + } + bool RouterProfile::IsBad () { + if (IsUnreachable () || m_IsDuplicated) return true; + auto ts = i2p::util::GetSecondsSinceEpoch (); + if (ts > PEER_PROFILE_MAX_DECLINED_INTERVAL + m_LastDeclineTime) return false; + if (IsDeclinedRecently (ts)) return true; auto isBad = IsAlwaysDeclining () || IsLowPartcipationRate () /*|| IsLowReplyRate ()*/; if (isBad && m_NumTimesRejected > 10*(m_NumTimesTaken + 1)) { @@ -160,36 +237,186 @@ namespace data return isBad; } + bool RouterProfile::IsUnreachable () + { + if (!m_LastUnreachableTime) return false; + auto ts = i2p::util::GetSecondsSinceEpoch (); + if (ts > m_LastUnreachableTime + PEER_PROFILE_UNREACHABLE_INTERVAL || + ts + PEER_PROFILE_UNREACHABLE_INTERVAL < m_LastUnreachableTime) + m_LastUnreachableTime = 0; + return (bool)m_LastUnreachableTime; + } + + bool RouterProfile::IsUseful() const + { + return IsReal () || m_NumTunnelsNonReplied >= PEER_PROFILE_USEFUL_THRESHOLD; + } + std::shared_ptr GetRouterProfile (const IdentHash& identHash) { - auto profile = std::make_shared (); + { + std::unique_lock l(g_ProfilesMutex); + auto it = g_Profiles.find (identHash); + if (it != g_Profiles.end ()) + { + it->second->SetLastAccessTime (i2p::util::GetSecondsSinceEpoch ()); + return it->second; + } + } + auto profile = netdb.NewRouterProfile (); profile->Load (identHash); // if possible + std::lock_guard l(g_ProfilesMutex); + g_Profiles.emplace (identHash, profile); return profile; } + bool IsRouterBanned (const IdentHash& identHash) + { + std::lock_guard l(g_ProfilesMutex); + auto it = g_Profiles.find (identHash); + if (it != g_Profiles.end ()) + return it->second->IsUnreachable (); + return false; + } + + bool IsRouterDuplicated (const IdentHash& identHash) + { + std::lock_guard l(g_ProfilesMutex); + auto it = g_Profiles.find (identHash); + if (it != g_Profiles.end ()) + return it->second->IsDuplicated (); + return false; + } + void InitProfilesStorage () { - m_ProfilesStorage.SetPlace(i2p::fs::GetDataDir()); - m_ProfilesStorage.Init(i2p::data::GetBase64SubstitutionTable(), 64); + g_ProfilesStorage.SetPlace(i2p::fs::GetDataDir()); + g_ProfilesStorage.Init(i2p::data::GetBase64SubstitutionTable(), 64); + } + + static void SaveProfilesToDisk (std::list > >&& profiles) + { + for (auto& it: profiles) + if (it.second) it.second->Save (it.first); + } + + std::future PersistProfiles () + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + std::list > > tmp; + { + std::lock_guard l(g_ProfilesMutex); + for (auto it = g_Profiles.begin (); it != g_Profiles.end ();) + { + if (it->second->IsUpdated () && ts > it->second->GetLastPersistTime () + PEER_PROFILE_PERSIST_INTERVAL) + { + tmp.push_back (*it); + it->second->SetLastPersistTime (ts); + it->second->SetUpdated (false); + } + if (!it->second->IsUpdated () && ts > std::max (it->second->GetLastUpdateTime (), it->second->GetLastAccessTime ()) + PEER_PROFILE_PERSIST_INTERVAL) + it = g_Profiles.erase (it); + else + it++; + } + } + if (!tmp.empty ()) + return std::async (std::launch::async, SaveProfilesToDisk, std::move (tmp)); + return std::future(); } - void DeleteObsoleteProfiles () + void SaveProfiles () { + std::unordered_map > tmp; + { + std::lock_guard l(g_ProfilesMutex); + std::swap (tmp, g_Profiles); + } + auto ts = i2p::util::GetSecondsSinceEpoch (); + for (auto& it: tmp) + if (it.second->IsUseful() && (it.second->IsUpdated () || ts - it.second->GetLastUpdateTime () < PEER_PROFILE_EXPIRATION_TIMEOUT)) + it.second->Save (it.first); + } + + static void DeleteFilesFromDisk () + { + std::vector files; + g_ProfilesStorage.Traverse(files); + struct stat st; std::time_t now = std::time(nullptr); - - std::vector files; - m_ProfilesStorage.Traverse(files); - for (const auto& path: files) { - if (stat(path.c_str(), &st) != 0) { + for (const auto& path: files) + { + if (stat(path.c_str(), &st) != 0) + { LogPrint(eLogWarning, "Profiling: Can't stat(): ", path); continue; } - if (((now - st.st_mtime) / 3600) >= PEER_PROFILE_EXPIRATION_TIMEOUT) { - LogPrint(eLogDebug, "Profiling: removing expired peer profile: ", path); + if (now - st.st_mtime >= PEER_PROFILE_EXPIRATION_TIMEOUT) + { + LogPrint(eLogDebug, "Profiling: Removing expired peer profile: ", path); i2p::fs::Remove(path); } } + } + + std::future DeleteObsoleteProfiles () + { + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + std::lock_guard l(g_ProfilesMutex); + for (auto it = g_Profiles.begin (); it != g_Profiles.end ();) + { + if (ts - it->second->GetLastUpdateTime () >= PEER_PROFILE_EXPIRATION_TIMEOUT) + it = g_Profiles.erase (it); + else + it++; + } + } + + return std::async (std::launch::async, DeleteFilesFromDisk); } + + bool UpdateRouterProfile (const IdentHash& identHash, std::function)> update) + { + if (!update) return true; + std::shared_ptr profile; + { + std::lock_guard l(g_ProfilesMutex); + auto it = g_Profiles.find (identHash); + if (it != g_Profiles.end ()) + profile = it->second; + } + if (profile) + { + update (profile); + return true; + } + // postpone + std::lock_guard l(g_PostponedUpdatesMutex); + g_PostponedUpdates.emplace_back (identHash, update); + return false; + } + + static void ApplyPostponedUpdates (std::list)> > >&& updates) + { + for (const auto& [ident, update] : updates) + { + auto profile = GetRouterProfile (ident); + update (profile); + } + } + + std::future FlushPostponedRouterProfileUpdates () + { + if (g_PostponedUpdates.empty ()) return std::future(); + + std::list)> > > updates; + { + std::lock_guard l(g_PostponedUpdatesMutex); + g_PostponedUpdates.swap (updates); + } + return std::async (std::launch::async, ApplyPostponedUpdates, std::move (updates)); + } } } diff --git a/libi2pd/Profiling.h b/libi2pd/Profiling.h index 4ba6702f..59995b3f 100644 --- a/libi2pd/Profiling.h +++ b/libi2pd/Profiling.h @@ -1,8 +1,18 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef PROFILING_H__ #define PROFILING_H__ #include -#include +#include +#include +#include #include "Identity.h" namespace i2p @@ -13,42 +23,81 @@ namespace data const char PEER_PROFILE_SECTION_PARTICIPATION[] = "participation"; const char PEER_PROFILE_SECTION_USAGE[] = "usage"; // params - const char PEER_PROFILE_LAST_UPDATE_TIME[] = "lastupdatetime"; + const char PEER_PROFILE_LAST_UPDATE_TIME[] = "lastupdatetime"; // deprecated + const char PEER_PROFILE_LAST_UPDATE_TIMESTAMP[] = "lastupdatetimestamp"; + const char PEER_PROFILE_LAST_UNREACHABLE_TIME[] = "lastunreachabletime"; const char PEER_PROFILE_PARTICIPATION_AGREED[] = "agreed"; const char PEER_PROFILE_PARTICIPATION_DECLINED[] = "declined"; const char PEER_PROFILE_PARTICIPATION_NON_REPLIED[] = "nonreplied"; const char PEER_PROFILE_USAGE_TAKEN[] = "taken"; const char PEER_PROFILE_USAGE_REJECTED[] = "rejected"; - - const int PEER_PROFILE_EXPIRATION_TIMEOUT = 72; // in hours (3 days) - + const char PEER_PROFILE_USAGE_CONNECTED[] = "connected"; + const char PEER_PROFILE_USAGE_DUPLICATED[] = "duplicated"; + + const int PEER_PROFILE_EXPIRATION_TIMEOUT = 36*60*60; // in seconds (1.5 days) + const int PEER_PROFILE_AUTOCLEAN_TIMEOUT = 1500; // in seconds (25 minutes) + const int PEER_PROFILE_AUTOCLEAN_VARIANCE = 900; // in seconds (15 minutes) + const int PEER_PROFILE_OBSOLETE_PROFILES_CLEAN_TIMEOUT = 5400; // in seconds (1.5 hours) + const int PEER_PROFILE_OBSOLETE_PROFILES_CLEAN_VARIANCE = 2400; // in seconds (40 minutes) + const int PEER_PROFILE_DECLINED_RECENTLY_INTERVAL = 330; // in seconds (5.5 minutes) + const int PEER_PROFILE_MAX_DECLINED_INTERVAL = 4400; // in second (1.5 hours) + const int PEER_PROFILE_PERSIST_INTERVAL = 1320; // in seconds (22 minutes) + const int PEER_PROFILE_UNREACHABLE_INTERVAL = 480; // in seconds (8 minutes) + const int PEER_PROFILE_USEFUL_THRESHOLD = 3; + const int PEER_PROFILE_ALWAYS_DECLINING_NUM = 5; // num declines in row to consider always declined + const int PEER_PROFILE_APPLY_POSTPONED_TIMEOUT = 2100; // in milliseconds + const int PEER_PROFILE_APPLY_POSTPONED_TIMEOUT_VARIANCE = 500; // in milliseconds + class RouterProfile { public: RouterProfile (); - RouterProfile& operator= (const RouterProfile& ) = default; void Save (const IdentHash& identHash); void Load (const IdentHash& identHash); bool IsBad (); + bool IsUnreachable (); + bool IsReal () const { return m_HasConnected || m_NumTunnelsAgreed > 0 || m_NumTunnelsDeclined > 0; } void TunnelBuildResponse (uint8_t ret); void TunnelNonReplied (); + void Unreachable (bool unreachable); + void Connected (); + void Duplicated (); + + uint64_t GetLastUpdateTime () const { return m_LastUpdateTime; }; + bool IsUpdated () const { return m_IsUpdated; }; + void SetUpdated (bool updated) { m_IsUpdated = updated; } + uint64_t GetLastAccessTime () const { return m_LastAccessTime; }; + void SetLastAccessTime (uint64_t ts) { m_LastAccessTime = ts; }; + uint64_t GetLastPersistTime () const { return m_LastPersistTime; }; + void SetLastPersistTime (uint64_t ts) { m_LastPersistTime = ts; }; + + bool IsUseful() const; + bool IsDuplicated () const { return m_IsDuplicated; }; + + const boost::asio::ip::udp::endpoint& GetLastEndpoint () const { return m_LastEndpoint; } + void SetLastEndpoint (const boost::asio::ip::udp::endpoint& ep) { m_LastEndpoint = ep; } + bool HasLastEndpoint (bool v4) const { return !m_LastEndpoint.address ().is_unspecified () && m_LastEndpoint.port () && + ((v4 && m_LastEndpoint.address ().is_v4 ()) || (!v4 && m_LastEndpoint.address ().is_v6 ())); } + private: - boost::posix_time::ptime GetTime () const; void UpdateTime (); bool IsAlwaysDeclining () const { return !m_NumTunnelsAgreed && m_NumTunnelsDeclined >= 5; }; bool IsLowPartcipationRate () const; bool IsLowReplyRate () const; + bool IsDeclinedRecently (uint64_t ts); private: - boost::posix_time::ptime m_LastUpdateTime; + bool m_IsUpdated; + uint64_t m_LastDeclineTime, m_LastUnreachableTime, m_LastUpdateTime, + m_LastAccessTime, m_LastPersistTime; // in seconds // participation uint32_t m_NumTunnelsAgreed; uint32_t m_NumTunnelsDeclined; @@ -56,11 +105,21 @@ namespace data // usage uint32_t m_NumTimesTaken; uint32_t m_NumTimesRejected; + bool m_HasConnected; // successful trusted(incoming or NTCP2) connection + bool m_IsDuplicated; + // connectivity + boost::asio::ip::udp::endpoint m_LastEndpoint; // SSU2 for non-published addresses }; std::shared_ptr GetRouterProfile (const IdentHash& identHash); + bool IsRouterBanned (const IdentHash& identHash); // check only existing profiles + bool IsRouterDuplicated (const IdentHash& identHash); // check only existing profiles void InitProfilesStorage (); - void DeleteObsoleteProfiles (); + std::future DeleteObsoleteProfiles (); + void SaveProfiles (); + std::future PersistProfiles (); + bool UpdateRouterProfile (const IdentHash& identHash, std::function)> update); // return true if updated immediately, and false if postponed + std::future FlushPostponedRouterProfileUpdates (); } } diff --git a/libi2pd/Queue.h b/libi2pd/Queue.h index 0438cc37..0e3e4fde 100644 --- a/libi2pd/Queue.h +++ b/libi2pd/Queue.h @@ -1,8 +1,15 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef QUEUE_H__ #define QUEUE_H__ -#include -#include +#include #include #include #include @@ -20,23 +27,21 @@ namespace util void Put (Element e) { - std::unique_lock l(m_QueueMutex); - m_Queue.push (std::move(e)); + std::unique_lock l(m_QueueMutex); + m_Queue.push_back (std::move(e)); m_NonEmpty.notify_one (); } - templateclass Container, typename... R> - void Put (const Container& vec) + void Put (std::list& list) { - if (!vec.empty ()) + if (!list.empty ()) { - std::unique_lock l(m_QueueMutex); - for (const auto& it: vec) - m_Queue.push (std::move(it)); + std::unique_lock l(m_QueueMutex); + m_Queue.splice (m_Queue.end (), list); m_NonEmpty.notify_one (); - } - } - + } + } + Element GetNext () { std::unique_lock l(m_QueueMutex); @@ -79,7 +84,7 @@ namespace util return m_Queue.empty (); } - int GetSize () + int GetSize () const { std::unique_lock l(m_QueueMutex); return m_Queue.size (); @@ -99,15 +104,28 @@ namespace util return GetNonThreadSafe (true); } - private: + void GetWholeQueue (std::list& queue) + { + if (!queue.empty ()) + { + std::list newQueue; + queue.swap (newQueue); + } + { + std::unique_lock l(m_QueueMutex); + m_Queue.swap (queue); + } + } + private: + Element GetNonThreadSafe (bool peek = false) { if (!m_Queue.empty ()) { auto el = m_Queue.front (); if (!peek) - m_Queue.pop (); + m_Queue.pop_front (); return el; } return nullptr; @@ -115,8 +133,8 @@ namespace util private: - std::queue m_Queue; - std::mutex m_QueueMutex; + std::list m_Queue; + mutable std::mutex m_QueueMutex; std::condition_variable m_NonEmpty; }; } diff --git a/libi2pd/Reseed.cpp b/libi2pd/Reseed.cpp index 98f95dc3..e58e898b 100644 --- a/libi2pd/Reseed.cpp +++ b/libi2pd/Reseed.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -18,6 +26,7 @@ #include "HTTP.h" #include "util.h" #include "Config.h" +#include "Socks5.h" namespace i2p { @@ -32,77 +41,100 @@ namespace data { } - /** @brief tries to bootstrap into I2P network (from local files and servers, with respect of options) - */ - void Reseeder::Bootstrap () - { - std::string su3FileName; i2p::config::GetOption("reseed.file", su3FileName); - std::string zipFileName; i2p::config::GetOption("reseed.zipfile", zipFileName); - - if (su3FileName.length() > 0) // bootstrap from SU3 file or URL - { - int num; - if (su3FileName.length() > 8 && su3FileName.substr(0, 8) == "https://") - { - num = ReseedFromSU3Url (su3FileName); // from https URL - } - else - { - num = ProcessSU3File (su3FileName.c_str ()); - } - if (num == 0) - LogPrint (eLogWarning, "Reseed: failed to reseed from ", su3FileName); - } - else if (zipFileName.length() > 0) // bootstrap from ZIP file - { - int num = ProcessZIPFile (zipFileName.c_str ()); - if (num == 0) - LogPrint (eLogWarning, "Reseed: failed to reseed from ", zipFileName); - } - else // bootstrap from reseed servers - { - int num = ReseedFromServers (); - if (num == 0) - LogPrint (eLogWarning, "Reseed: failed to reseed from servers"); - } - } - - /** @brief bootstrap from random server, retry 10 times - * @return number of entries added to netDb - */ - int Reseeder::ReseedFromServers () + /** + @brief tries to bootstrap into I2P network (from local files and servers, with respect of options) + */ + void Reseeder::Bootstrap () { - std::string reseedURLs; i2p::config::GetOption("reseed.urls", reseedURLs); - std::vector httpsReseedHostList; - boost::split(httpsReseedHostList, reseedURLs, boost::is_any_of(","), boost::token_compress_on); + std::string su3FileName; i2p::config::GetOption("reseed.file", su3FileName); + std::string zipFileName; i2p::config::GetOption("reseed.zipfile", zipFileName); - if (reseedURLs.length () == 0) - { - LogPrint (eLogWarning, "Reseed: No reseed servers specified"); - return 0; - } - - int reseedRetries = 0; - while (reseedRetries < 10) - { - auto ind = rand () % httpsReseedHostList.size (); - std::string reseedUrl = httpsReseedHostList[ind] + "i2pseeds.su3"; - auto num = ReseedFromSU3Url (reseedUrl); - if (num > 0) return num; // success - reseedRetries++; - } - LogPrint (eLogWarning, "Reseed: failed to reseed from servers after 10 attempts"); - return 0; + if (su3FileName.length() > 0) // bootstrap from SU3 file or URL + { + int num; + if (su3FileName.length() > 8 && su3FileName.substr(0, 8) == "https://") + { + num = ReseedFromSU3Url (su3FileName); // from https URL + } + else + { + num = ProcessSU3File (su3FileName.c_str ()); + } + if (num == 0) + LogPrint (eLogWarning, "Reseed: Failed to reseed from ", su3FileName); + } + else if (zipFileName.length() > 0) // bootstrap from ZIP file + { + int num = ProcessZIPFile (zipFileName.c_str ()); + if (num == 0) + LogPrint (eLogWarning, "Reseed: Failed to reseed from ", zipFileName); + } + else // bootstrap from reseed servers + { + int num = ReseedFromServers (); + if (num == 0) + LogPrint (eLogWarning, "Reseed: Failed to reseed from servers"); + } } - /** @brief bootstrap from HTTPS URL with SU3 file - * @param url - * @return number of entries added to netDb - */ - int Reseeder::ReseedFromSU3Url (const std::string& url) + /** + * @brief bootstrap from random server, retry 10 times + * @return number of entries added to netDb + */ + int Reseeder::ReseedFromServers () + { + bool ipv6; i2p::config::GetOption("ipv6", ipv6); + bool ipv4; i2p::config::GetOption("ipv4", ipv4); + bool yggdrasil; i2p::config::GetOption("meshnets.yggdrasil", yggdrasil); + + std::vector httpsReseedHostList; + if (ipv4 || ipv6) + { + std::string reseedURLs; i2p::config::GetOption("reseed.urls", reseedURLs); + if (!reseedURLs.empty ()) + boost::split(httpsReseedHostList, reseedURLs, boost::is_any_of(","), boost::token_compress_on); + } + + std::vector yggReseedHostList; + if (yggdrasil && !i2p::util::net::GetYggdrasilAddress ().is_unspecified ()) + { + LogPrint (eLogInfo, "Reseed: Yggdrasil is supported"); + std::string yggReseedURLs; i2p::config::GetOption("reseed.yggurls", yggReseedURLs); + if (!yggReseedURLs.empty ()) + boost::split(yggReseedHostList, yggReseedURLs, boost::is_any_of(","), boost::token_compress_on); + } + + if (httpsReseedHostList.empty () && yggReseedHostList.empty()) + { + LogPrint (eLogWarning, "Reseed: No reseed servers specified"); + return 0; + } + + int reseedRetries = 0; + while (reseedRetries < 10) + { + auto ind = rand () % (httpsReseedHostList.size () + yggReseedHostList.size ()); + bool isHttps = ind < httpsReseedHostList.size (); + std::string reseedUrl = isHttps ? httpsReseedHostList[ind] : + yggReseedHostList[ind - httpsReseedHostList.size ()]; + reseedUrl += "i2pseeds.su3"; + auto num = ReseedFromSU3Url (reseedUrl, isHttps); + if (num > 0) return num; // success + reseedRetries++; + } + LogPrint (eLogWarning, "Reseed: Failed to reseed from servers after 10 attempts"); + return 0; + } + + /** + * @brief bootstrap from HTTPS URL with SU3 file + * @param url + * @return number of entries added to netDb + */ + int Reseeder::ReseedFromSU3Url (const std::string& url, bool isHttps) { LogPrint (eLogInfo, "Reseed: Downloading SU3 from ", url); - std::string su3 = HttpsRequest (url); + std::string su3 = isHttps ? HttpsRequest (url) : YggdrasilRequest (url); if (su3.length () > 0) { std::stringstream s(su3); @@ -122,7 +154,7 @@ namespace data return ProcessSU3Stream (s); else { - LogPrint (eLogError, "Reseed: Can't open file ", filename); + LogPrint (eLogCritical, "Reseed: Can't open file ", filename); return 0; } } @@ -139,7 +171,7 @@ namespace data } else { - LogPrint (eLogError, "Reseed: Can't open file ", filename); + LogPrint (eLogCritical, "Reseed: Can't open file ", filename); return 0; } } @@ -156,31 +188,31 @@ namespace data } s.seekg (1, std::ios::cur); // su3 file format version SigningKeyType signatureType; - s.read ((char *)&signatureType, 2); // signature type + s.read ((char *)&signatureType, 2); // signature type signatureType = be16toh (signatureType); uint16_t signatureLength; - s.read ((char *)&signatureLength, 2); // signature length + s.read ((char *)&signatureLength, 2); // signature length signatureLength = be16toh (signatureLength); s.seekg (1, std::ios::cur); // unused uint8_t versionLength; - s.read ((char *)&versionLength, 1); // version length + s.read ((char *)&versionLength, 1); // version length s.seekg (1, std::ios::cur); // unused uint8_t signerIDLength; - s.read ((char *)&signerIDLength, 1); // signer ID length + s.read ((char *)&signerIDLength, 1); // signer ID length uint64_t contentLength; - s.read ((char *)&contentLength, 8); // content length + s.read ((char *)&contentLength, 8); // content length contentLength = be64toh (contentLength); s.seekg (1, std::ios::cur); // unused uint8_t fileType; - s.read ((char *)&fileType, 1); // file type - if (fileType != 0x00) // zip file + s.read ((char *)&fileType, 1); // file type + if (fileType != 0x00) // zip file { LogPrint (eLogError, "Reseed: Can't handle file type ", (int)fileType); return 0; } s.seekg (1, std::ios::cur); // unused uint8_t contentType; - s.read ((char *)&contentType, 1); // content type + s.read ((char *)&contentType, 1); // content type if (contentType != 0x03) // reseed data { LogPrint (eLogError, "Reseed: Unexpected content type ", (int)contentType); @@ -247,7 +279,7 @@ namespace data if (verify) // not verified { - LogPrint (eLogError, "Reseed: SU3 verification failed"); + LogPrint (eLogCritical, "Reseed: SU3 verification failed"); return 0; } @@ -289,7 +321,7 @@ namespace data uint16_t fileNameLength, extraFieldLength; s.read ((char *)&fileNameLength, 2); fileNameLength = le16toh (fileNameLength); - if ( fileNameLength > 255 ) { + if ( fileNameLength >= 255 ) { // too big LogPrint(eLogError, "Reseed: SU3 fileNameLength too large: ", fileNameLength); return numFiles; @@ -384,13 +416,13 @@ namespace data { if (r && ts > r->GetTimestamp () + 10*i2p::data::NETDB_MAX_EXPIRATION_TIMEOUT*1000LL) // 270 hours { - LogPrint (eLogError, "Reseed: router ", r->GetIdentHash().ToBase64 (), " is outdated by ", (ts - r->GetTimestamp ())/1000LL/3600LL, " hours"); + LogPrint (eLogError, "Reseed: Router ", r->GetIdentHash().ToBase64 (), " is outdated by ", (ts - r->GetTimestamp ())/1000LL/3600LL, " hours"); numOutdated++; } }); if (numOutdated > numFiles/2) // more than half { - LogPrint (eLogError, "Reseed: mammoth's shit\n" + LogPrint (eLogError, "Reseed: Mammoth's shit\n" " *_____*\n" " *_*****_*\n" " *_(O)_(O)_*\n" @@ -448,7 +480,7 @@ namespace data if (terminator) terminator[0] = 0; } // extract RSA key (we need n only, e = 65537) - RSA * key = EVP_PKEY_get0_RSA (X509_get_pubkey (cert)); + const RSA * key = EVP_PKEY_get0_RSA (X509_get_pubkey (cert)); const BIGNUM * n, * e, * d; RSA_get0_key(key, &n, &e, &d); PublicKey value; @@ -461,13 +493,14 @@ namespace data SSL_free (ssl); } else - LogPrint (eLogError, "Reseed: Can't open certificate file ", filename); + LogPrint (eLogCritical, "Reseed: Can't open certificate file ", filename); SSL_CTX_free (ctx); } void Reseeder::LoadCertificates () { - std::string certDir = i2p::fs::DataDirPath("certificates", "reseed"); + std::string certDir = i2p::fs::GetCertsDir() + i2p::fs::dirSep + "reseed"; + std::vector files; int numCertificates = 0; @@ -478,7 +511,7 @@ namespace data for (const std::string & file : files) { if (file.compare(file.size() - 4, 4, ".crt") != 0) { - LogPrint(eLogWarning, "Reseed: ignoring file ", file); + LogPrint(eLogWarning, "Reseed: Ignoring file ", file); continue; } LoadCertificate (file); @@ -502,24 +535,24 @@ namespace data } // check for valid proxy url schema if (proxyUrl.schema != "http" && proxyUrl.schema != "socks") { - LogPrint(eLogError, "Reseed: bad proxy url: ", proxy); + LogPrint(eLogCritical, "Reseed: Bad proxy url: ", proxy); return ""; } } else { - LogPrint(eLogError, "Reseed: bad proxy url: ", proxy); + LogPrint(eLogCritical, "Reseed: Bad proxy url: ", proxy); return ""; } } i2p::http::URL url; if (!url.parse(address)) { - LogPrint(eLogError, "Reseed: failed to parse url: ", address); + LogPrint(eLogCritical, "Reseed: Failed to parse url: ", address); return ""; } url.schema = "https"; if (!url.port) url.port = 443; - boost::asio::io_service service; + boost::asio::io_context service; boost::system::error_code ecode; boost::asio::ssl::context ctx(boost::asio::ssl::context::sslv23); @@ -529,11 +562,10 @@ namespace data if(proxyUrl.schema.size()) { // proxy connection - auto it = boost::asio::ip::tcp::resolver(service).resolve ( - boost::asio::ip::tcp::resolver::query (proxyUrl.host, std::to_string(proxyUrl.port)), ecode); + auto it = boost::asio::ip::tcp::resolver(service).resolve (proxyUrl.host, std::to_string(proxyUrl.port), ecode); if(!ecode) { - s.lowest_layer().connect(*it, ecode); + s.lowest_layer().connect(*it.begin (), ecode); if(!ecode) { auto & sock = s.next_layer(); @@ -544,9 +576,11 @@ namespace data proxyReq.method = "CONNECT"; proxyReq.version = "HTTP/1.1"; proxyReq.uri = url.host + ":" + std::to_string(url.port); + auto auth = i2p::http::CreateBasicAuthorizationString (proxyUrl.user, proxyUrl.pass); + if (!auth.empty ()) + proxyReq.AddHeader("Proxy-Authorization", auth); boost::asio::streambuf writebuf, readbuf; - std::ostream out(&writebuf); out << proxyReq.to_string(); @@ -564,7 +598,7 @@ namespace data LogPrint(eLogError, "Reseed: HTTP CONNECT read error: ", ecode.message()); return ""; } - if(proxyRes.parse(boost::asio::buffer_cast(readbuf.data()), readbuf.size()) <= 0) + if(proxyRes.parse(std::string {boost::asio::buffers_begin(readbuf.data ()), boost::asio::buffers_begin(readbuf.data ()) + readbuf.size ()}) <= 0) { sock.close(); LogPrint(eLogError, "Reseed: HTTP CONNECT malformed reply"); @@ -581,62 +615,21 @@ namespace data { // assume socks if not http, is checked before this for other types // TODO: support username/password auth etc - uint8_t hs_writebuf[3] = {0x05, 0x01, 0x00}; - uint8_t hs_readbuf[2]; - boost::asio::write(sock, boost::asio::buffer(hs_writebuf, 3), boost::asio::transfer_all(), ecode); - if(ecode) + bool success = false; + i2p::transport::Socks5Handshake (sock, std::make_pair(url.host, url.port), + [&success](const boost::system::error_code& ec) + { + if (!ec) + success = true; + else + LogPrint (eLogError, "Reseed: SOCKS handshake failed: ", ec.message()); + }); + service.run (); // execute all async operations + if (!success) { sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake write failed: ", ecode.message()); return ""; - } - boost::asio::read(sock, boost::asio::buffer(hs_readbuf, 2), ecode); - if(ecode) - { - sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake read failed: ", ecode.message()); - return ""; - } - size_t sz = 0; - uint8_t buf[256]; - - buf[0] = 0x05; - buf[1] = 0x01; - buf[2] = 0x00; - buf[3] = 0x03; - sz += 4; - size_t hostsz = url.host.size(); - if(1 + 2 + hostsz + sz > sizeof(buf)) - { - sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake failed, hostname too big: ", url.host); - return ""; - } - buf[4] = (uint8_t) hostsz; - memcpy(buf+5, url.host.c_str(), hostsz); - sz += hostsz + 1; - htobe16buf(buf+sz, url.port); - sz += 2; - boost::asio::write(sock, boost::asio::buffer(buf, sz), boost::asio::transfer_all(), ecode); - if(ecode) - { - sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake failed writing: ", ecode.message()); - return ""; - } - boost::asio::read(sock, boost::asio::buffer(buf, 10), ecode); - if(ecode) - { - sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake failed reading: ", ecode.message()); - return ""; - } - if(buf[1] != 0x00) - { - sock.close(); - LogPrint(eLogError, "Reseed: SOCKS handshake bad reply code: ", std::to_string(buf[1])); - return ""; - } + } } } } @@ -644,10 +637,39 @@ namespace data else { // direct connection - auto it = boost::asio::ip::tcp::resolver(service).resolve ( - boost::asio::ip::tcp::resolver::query (url.host, std::to_string(url.port)), ecode); - if(!ecode) - s.lowest_layer().connect (*it, ecode); + auto endpoints = boost::asio::ip::tcp::resolver(service).resolve (url.host, std::to_string(url.port), ecode); + if (!ecode) + { + bool connected = false; + for (const auto& it: endpoints) + { + boost::asio::ip::tcp::endpoint ep = it; + bool supported = false; + if (!ep.address ().is_unspecified ()) + { + if (ep.address ().is_v4 ()) + supported = i2p::context.SupportsV4 (); + else if (ep.address ().is_v6 ()) + supported = i2p::util::net::IsYggdrasilAddress (ep.address ()) ? + i2p::context.SupportsMesh () : i2p::context.SupportsV6 (); + } + if (supported) + { + s.lowest_layer().connect (ep, ecode); + if (!ecode) + { + LogPrint (eLogDebug, "Reseed: Resolved to ", ep.address ()); + connected = true; + break; + } + } + } + if (!connected) + { + LogPrint(eLogError, "Reseed: Failed to connect to ", url.host); + return ""; + } + } } if (!ecode) { @@ -656,42 +678,7 @@ namespace data if (!ecode) { LogPrint (eLogDebug, "Reseed: Connected to ", url.host, ":", url.port); - i2p::http::HTTPReq req; - req.uri = url.to_string(); - req.AddHeader("User-Agent", "Wget/1.11.4"); - req.AddHeader("Connection", "close"); - s.write_some (boost::asio::buffer (req.to_string())); - // read response - std::stringstream rs; - char recv_buf[1024]; size_t l = 0; - do { - l = s.read_some (boost::asio::buffer (recv_buf, sizeof(recv_buf)), ecode); - if (l) rs.write (recv_buf, l); - } while (!ecode && l); - // process response - std::string data = rs.str(); - i2p::http::HTTPRes res; - int len = res.parse(data); - if (len <= 0) { - LogPrint(eLogWarning, "Reseed: incomplete/broken response from ", url.host); - return ""; - } - if (res.code != 200) { - LogPrint(eLogError, "Reseed: failed to reseed from ", url.host, ", http code ", res.code); - return ""; - } - data.erase(0, len); /* drop http headers from response */ - LogPrint(eLogDebug, "Reseed: got ", data.length(), " bytes of data from ", url.host); - if (res.is_chunked()) { - std::stringstream in(data), out; - if (!i2p::http::MergeChunkedResponse(in, out)) { - LogPrint(eLogWarning, "Reseed: failed to merge chunked response from ", url.host); - return ""; - } - LogPrint(eLogDebug, "Reseed: got ", data.length(), "(", out.tellg(), ") bytes of data from ", url.host); - data = out.str(); - } - return data; + return ReseedRequest (s, url.to_string()); } else LogPrint (eLogError, "Reseed: SSL handshake failed: ", ecode.message ()); @@ -700,6 +687,101 @@ namespace data LogPrint (eLogError, "Reseed: Couldn't connect to ", url.host, ": ", ecode.message ()); return ""; } -} -} + template + std::string Reseeder::ReseedRequest (Stream& s, const std::string& uri) + { + boost::system::error_code ecode; + i2p::http::HTTPReq req; + req.uri = uri; + req.AddHeader("User-Agent", "Wget/1.11.4"); + req.AddHeader("Connection", "close"); + s.write_some (boost::asio::buffer (req.to_string())); + // read response + std::stringstream rs; + char recv_buf[1024]; size_t l = 0; + do { + l = s.read_some (boost::asio::buffer (recv_buf, sizeof(recv_buf)), ecode); + if (l) rs.write (recv_buf, l); + } while (!ecode && l); + // process response + std::string data = rs.str(); + i2p::http::HTTPRes res; + int len = res.parse(data); + if (len <= 0) { + LogPrint(eLogWarning, "Reseed: Incomplete/broken response from ", uri); + return ""; + } + if (res.code != 200) { + LogPrint(eLogError, "Reseed: Failed to reseed from ", uri, ", http code ", res.code); + return ""; + } + data.erase(0, len); /* drop http headers from response */ + LogPrint(eLogDebug, "Reseed: Got ", data.length(), " bytes of data from ", uri); + if (res.is_chunked()) { + std::stringstream in(data), out; + if (!i2p::http::MergeChunkedResponse(in, out)) { + LogPrint(eLogWarning, "Reseed: Failed to merge chunked response from ", uri); + return ""; + } + LogPrint(eLogDebug, "Reseed: Got ", data.length(), "(", out.tellg(), ") bytes of data from ", uri); + data = out.str(); + } + return data; + } + + std::string Reseeder::YggdrasilRequest (const std::string& address) + { + i2p::http::URL url; + if (!url.parse(address)) + { + LogPrint(eLogError, "Reseed: Failed to parse url: ", address); + return ""; + } + url.schema = "http"; + if (!url.port) url.port = 80; + + boost::system::error_code ecode; + boost::asio::io_context service; + boost::asio::ip::tcp::socket s(service, boost::asio::ip::tcp::v6()); + + auto endpoints = boost::asio::ip::tcp::resolver(service).resolve (url.host, std::to_string(url.port), ecode); + if (!ecode) + { + bool connected = false; + for (const auto& it: endpoints) + { + boost::asio::ip::tcp::endpoint ep = it; + if ( + i2p::util::net::IsYggdrasilAddress (ep.address ()) && + i2p::context.SupportsMesh () + ) + { + LogPrint (eLogDebug, "Reseed: Yggdrasil: Resolved to ", ep.address ()); + s.connect (ep, ecode); + if (!ecode) + { + connected = true; + break; + } + } + } + if (!connected) + { + LogPrint(eLogError, "Reseed: Yggdrasil: Failed to connect to ", url.host); + return ""; + } + } + + if (!ecode) + { + LogPrint (eLogDebug, "Reseed: Yggdrasil: Connected to ", url.host, ":", url.port); + return ReseedRequest (s, url.to_string()); + } + else + LogPrint (eLogError, "Reseed: Yggdrasil: Couldn't connect to ", url.host, ": ", ecode.message ()); + + return ""; + } +} +} diff --git a/libi2pd/Reseed.h b/libi2pd/Reseed.h index a69969bf..a6de6fa4 100644 --- a/libi2pd/Reseed.h +++ b/libi2pd/Reseed.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef RESEED_H #define RESEED_H @@ -21,9 +29,8 @@ namespace data Reseeder(); ~Reseeder(); - void Bootstrap (); + void Bootstrap (); int ReseedFromServers (); - int ReseedFromSU3Url (const std::string& url); int ProcessSU3File (const char * filename); int ProcessZIPFile (const char * filename); @@ -31,6 +38,7 @@ namespace data private: + int ReseedFromSU3Url (const std::string& url, bool isHttps = true); void LoadCertificate (const std::string& filename); int ProcessSU3Stream (std::istream& s); @@ -39,6 +47,9 @@ namespace data bool FindZipDataDescriptor (std::istream& s); std::string HttpsRequest (const std::string& address); + std::string YggdrasilRequest (const std::string& address); + template + std::string ReseedRequest (Stream& s, const std::string& uri); private: diff --git a/libi2pd/RouterContext.cpp b/libi2pd/RouterContext.cpp index 4a229546..33fb5487 100644 --- a/libi2pd/RouterContext.cpp +++ b/libi2pd/RouterContext.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include "Config.h" @@ -11,6 +19,10 @@ #include "version.h" #include "Log.h" #include "Family.h" +#include "ECIESX25519AEADRatchetSession.h" +#include "Transports.h" +#include "Tunnel.h" +#include "CryptoKey.h" #include "RouterContext.h" namespace i2p @@ -19,135 +31,352 @@ namespace i2p RouterContext::RouterContext (): m_LastUpdateTime (0), m_AcceptsTunnels (true), m_IsFloodfill (false), - m_StartupTime (0), m_ShareRatio (100), m_Status (eRouterStatusOK), - m_Error (eRouterErrorNone), m_NetID (I2PD_NET_ID) + m_ShareRatio (100), m_Status (eRouterStatusUnknown), m_StatusV6 (eRouterStatusUnknown), + m_Error (eRouterErrorNone), m_ErrorV6 (eRouterErrorNone), + m_Testing (false), m_TestingV6 (false), m_NetID (I2PD_NET_ID), + m_PublishReplyToken (0), m_IsHiddenMode (false), + m_Rng(i2p::util::GetMonotonicMicroseconds () % 1000000LL), m_IsSaving (false) { } void RouterContext::Init () { - srand (i2p::util::GetMillisecondsSinceEpoch () % 1000); - m_StartupTime = i2p::util::GetSecondsSinceEpoch (); + srand (m_Rng () % 1000); + m_StartupTime = i2p::util::GetMonotonicSeconds (); + if (!Load ()) CreateNewRouter (); m_Decryptor = m_Keys.CreateDecryptor (nullptr); + m_TunnelDecryptor = m_Keys.CreateDecryptor (nullptr); UpdateRouterInfo (); + i2p::crypto::InitNoiseNState (m_InitialNoiseState, GetIdentity ()->GetEncryptionPublicKey ()); + m_ECIESSession = std::make_shared(m_InitialNoiseState); } + void RouterContext::Start () + { + if (!m_Service) + { + m_Service.reset (new RouterService); + m_Service->Start (); + m_PublishTimer.reset (new boost::asio::deadline_timer (m_Service->GetService ())); + ScheduleInitialPublish (); + m_CongestionUpdateTimer.reset (new boost::asio::deadline_timer (m_Service->GetService ())); + ScheduleCongestionUpdate (); + m_CleanupTimer.reset (new boost::asio::deadline_timer (m_Service->GetService ())); + ScheduleCleanupTimer (); + } + } + + void RouterContext::Stop () + { + if (m_Service) + { + if (m_PublishTimer) + m_PublishTimer->cancel (); + if (m_CongestionUpdateTimer) + m_CongestionUpdateTimer->cancel (); + m_Service->Stop (); + CleanUp (); // GarlicDestination + } + } + + std::shared_ptr RouterContext::CopyRouterInfoBuffer () const + { + std::lock_guard l(m_RouterInfoMutex); + return m_RouterInfo.CopyBuffer (); + } + void RouterContext::CreateNewRouter () { - m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519); + m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, + i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD); SaveKeys (); NewRouterInfo (); } void RouterContext::NewRouterInfo () { - i2p::data::RouterInfo routerInfo; + i2p::data::LocalRouterInfo routerInfo; routerInfo.SetRouterIdentity (GetIdentity ()); uint16_t port; i2p::config::GetOption("port", port); - if (!port) + if (!port) port = SelectRandomPort (); + bool ipv4; i2p::config::GetOption("ipv4", ipv4); + bool ipv6; i2p::config::GetOption("ipv6", ipv6); + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2); + bool ygg; i2p::config::GetOption("meshnets.yggdrasil", ygg); + bool nat; i2p::config::GetOption("nat", nat); + + if ((ntcp2 || ygg) && !m_NTCP2Keys) + NewNTCP2Keys (); + if (ssu2 && !m_SSU2Keys) + NewSSU2Keys (); + bool ntcp2Published = false; + if (ntcp2) { - port = rand () % (30777 - 9111) + 9111; // I2P network ports range - if (port == 9150) port = 9151; // Tor browser + i2p::config::GetOption("ntcp2.published", ntcp2Published); + if (ntcp2Published) + { + std::string ntcp2proxy; i2p::config::GetOption("ntcp2.proxy", ntcp2proxy); + if (!ntcp2proxy.empty ()) ntcp2Published = false; + } } - bool ipv4; i2p::config::GetOption("ipv4", ipv4); - bool ipv6; i2p::config::GetOption("ipv6", ipv6); - bool ssu; i2p::config::GetOption("ssu", ssu); - bool ntcp; i2p::config::GetOption("ntcp", ntcp); - bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); - bool nat; i2p::config::GetOption("nat", nat); - std::string ifname; i2p::config::GetOption("ifname", ifname); - std::string ifname4; i2p::config::GetOption("ifname4", ifname4); - std::string ifname6; i2p::config::GetOption("ifname6", ifname6); + bool ssu2Published = false; + if (ssu2) + i2p::config::GetOption("ssu2.published", ssu2Published); + uint8_t caps = 0; if (ipv4) { - std::string host = "127.0.0.1"; - if (!i2p::config::IsDefault("host")) - i2p::config::GetOption("host", host); - else if (!nat && !ifname.empty()) - /* bind to interface, we have no NAT so set external address too */ - host = i2p::util::net::GetInterfaceAddress(ifname, false).to_string(); // v4 + std::string host; + if (!nat) + // we have no NAT so set external address from local address + i2p::config::GetOption("address4", host); + if (host.empty ()) i2p::config::GetOption("host", host); - if(ifname4.size()) - host = i2p::util::net::GetInterfaceAddress(ifname4, false).to_string(); - - if (ssu) - routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash ()); - if (ntcp) - routerInfo.AddNTCPAddress (host.c_str(), port); + if (ntcp2) + { + uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port); + if (!ntcp2Port) ntcp2Port = port; + if (ntcp2Published && ntcp2Port) + { + boost::asio::ip::address addr; + if (!host.empty ()) + addr = boost::asio::ip::make_address (host); + if (!addr.is_v4()) + addr = boost::asio::ip::address_v4 (); + routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port); + } + else + { + // add non-published NTCP2 address + uint8_t addressCaps = i2p::data::RouterInfo::AddressCaps::eV4; + if (ipv6) addressCaps |= i2p::data::RouterInfo::AddressCaps::eV6; + routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, addressCaps); + } + } + if (ssu2) + { + uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port); + if (!ssu2Port) ssu2Port = port; + if (ssu2Published && ssu2Port) + { + boost::asio::ip::address addr; + if (!host.empty ()) + addr = boost::asio::ip::make_address (host); + if (!addr.is_v4()) + addr = boost::asio::ip::address_v4 (); + routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port); + } + else + { + uint8_t addressCaps = i2p::data::RouterInfo::AddressCaps::eV4; + if (ipv6) addressCaps |= i2p::data::RouterInfo::AddressCaps::eV6; + routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, addressCaps); + } + } } if (ipv6) { - std::string host = "::1"; - if (!i2p::config::IsDefault("host") && !ipv4) // override if v6 only - i2p::config::GetOption("host", host); - else if (!ifname.empty()) - host = i2p::util::net::GetInterfaceAddress(ifname, true).to_string(); // v6 + std::string host; i2p::config::GetOption("address6", host); + if (host.empty () && !ipv4) i2p::config::GetOption("host", host); // use host for ipv6 only if ipv4 is not presented - if(ifname6.size()) - host = i2p::util::net::GetInterfaceAddress(ifname6, true).to_string(); - - if (ssu) - routerInfo.AddSSUAddress (host.c_str(), port, routerInfo.GetIdentHash ()); - if (ntcp) - routerInfo.AddNTCPAddress (host.c_str(), port); + if (ntcp2) + { + uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port); + if (!ntcp2Port) ntcp2Port = port; + if (ntcp2Published && ntcp2Port) + { + std::string ntcp2Host; + if (!i2p::config::IsDefault ("ntcp2.addressv6")) + i2p::config::GetOption ("ntcp2.addressv6", ntcp2Host); + else + ntcp2Host = host; + boost::asio::ip::address addr; + if (!ntcp2Host.empty ()) + addr = boost::asio::ip::make_address (ntcp2Host); + if (!addr.is_v6()) + addr = boost::asio::ip::address_v6 (); + routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port); + } + else + { + if (!ipv4) // no other ntcp2 addresses yet + routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, i2p::data::RouterInfo::AddressCaps::eV6); + } + } + if (ssu2) + { + uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port); + if (!ssu2Port) ssu2Port = port; + if (ssu2Published && ssu2Port) + { + boost::asio::ip::address addr; + if (!host.empty ()) + addr = boost::asio::ip::make_address (host); + if (!addr.is_v6()) + addr = boost::asio::ip::address_v6 (); + routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port); + } + else + { + if (!ipv4) // no other ssu2 addresses yet + routerInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, i2p::data::RouterInfo::AddressCaps::eV6); + } + } + } + if (ygg) + { + auto yggaddr = i2p::util::net::GetYggdrasilAddress (); + if (!yggaddr.is_unspecified ()) + routerInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, yggaddr, port); } - routerInfo.SetCaps (i2p::data::RouterInfo::eReachable | - i2p::data::RouterInfo::eSSUTesting | i2p::data::RouterInfo::eSSUIntroducer); // LR, BC + routerInfo.UpdateCaps (caps); // caps + L routerInfo.SetProperty ("netId", std::to_string (m_NetID)); routerInfo.SetProperty ("router.version", I2P_VERSION); routerInfo.CreateBuffer (m_Keys); m_RouterInfo.SetRouterIdentity (GetIdentity ()); m_RouterInfo.Update (routerInfo.GetBuffer (), routerInfo.GetBufferLen ()); + m_RouterInfo.SetUnreachable (false); + } - if (ntcp2) // we don't store iv in the address if non published so we must update it from keys + uint16_t RouterContext::SelectRandomPort () const + { + uint16_t port; + do { - if (!m_NTCP2Keys) NewNTCP2Keys (); - UpdateNTCP2Address (true); - if (!ntcp) // NTCP2 should replace NTCP - { - bool published; i2p::config::GetOption("ntcp2.published", published); - if (published) - PublishNTCP2Address (port, true); - } + port = rand () % (30777 - 9111) + 9111; // I2P network ports range } + while(i2p::util::net::IsPortInReservedRange(port)); + + return port; } void RouterContext::UpdateRouterInfo () { - m_RouterInfo.CreateBuffer (m_Keys); - m_RouterInfo.SaveToFile (i2p::fs::DataDirPath (ROUTER_INFO)); + std::shared_ptr buffer; + { + std::lock_guard l(m_RouterInfoMutex); + m_RouterInfo.CreateBuffer (m_Keys); + buffer = m_RouterInfo.CopyBuffer (); + } + { + // update save buffer to latest + std::lock_guard l(m_SaveBufferMutex); + m_SaveBuffer = buffer; + } + bool isSaving = false; + if (m_IsSaving.compare_exchange_strong (isSaving, true)) // try to save only if not being saved + { + auto savingRouterInfo = std::async (std::launch::async, [this]() + { + std::shared_ptr buffer; + while (m_SaveBuffer) + { + { + std::lock_guard l(m_SaveBufferMutex); + buffer = m_SaveBuffer; + m_SaveBuffer = nullptr; + } + if (buffer) + i2p::data::RouterInfo::SaveToFile (i2p::fs::DataDirPath (ROUTER_INFO), buffer); + } + m_IsSaving = false; + }); + } m_LastUpdateTime = i2p::util::GetSecondsSinceEpoch (); } void RouterContext::NewNTCP2Keys () { - m_StaticKeys.reset (new i2p::crypto::X25519Keys ()); - m_StaticKeys->GenerateKeys (); + m_NTCP2StaticKeys.reset (new i2p::crypto::X25519Keys ()); + m_NTCP2StaticKeys->GenerateKeys (); m_NTCP2Keys.reset (new NTCP2PrivateKeys ()); - m_StaticKeys->GetPrivateKey (m_NTCP2Keys->staticPrivateKey); - memcpy (m_NTCP2Keys->staticPublicKey, m_StaticKeys->GetPublicKey (), 32); + m_NTCP2StaticKeys->GetPrivateKey (m_NTCP2Keys->staticPrivateKey); + memcpy (m_NTCP2Keys->staticPublicKey, m_NTCP2StaticKeys->GetPublicKey (), 32); RAND_bytes (m_NTCP2Keys->iv, 16); // save std::ofstream fk (i2p::fs::DataDirPath (NTCP2_KEYS), std::ofstream::binary | std::ofstream::out); fk.write ((char *)m_NTCP2Keys.get (), sizeof (NTCP2PrivateKeys)); } + void RouterContext::NewSSU2Keys () + { + m_SSU2StaticKeys.reset (new i2p::crypto::X25519Keys ()); + m_SSU2StaticKeys->GenerateKeys (); + m_SSU2Keys.reset (new SSU2PrivateKeys ()); + m_SSU2StaticKeys->GetPrivateKey (m_SSU2Keys->staticPrivateKey); + memcpy (m_SSU2Keys->staticPublicKey, m_SSU2StaticKeys->GetPublicKey (), 32); + RAND_bytes (m_SSU2Keys->intro, 32); + // save + std::ofstream fk (i2p::fs::DataDirPath (SSU2_KEYS), std::ofstream::binary | std::ofstream::out); + fk.write ((char *)m_SSU2Keys.get (), sizeof (SSU2PrivateKeys)); + } + + void RouterContext::SetTesting (bool testing) + { + if (testing != m_Testing) + { + m_Testing = testing; + if (m_Testing) + m_Error = eRouterErrorNone; + } + } + + void RouterContext::SetTestingV6 (bool testing) + { + if (testing != m_TestingV6) + { + m_TestingV6 = testing; + if (m_TestingV6) + m_ErrorV6 = eRouterErrorNone; + } + } + void RouterContext::SetStatus (RouterStatus status) { + SetTesting (false); if (status != m_Status) { + LogPrint(eLogInfo, "Router: network status v4 changed ", + ROUTER_STATUS_NAMES[m_Status], " -> ", ROUTER_STATUS_NAMES[status]); m_Status = status; - m_Error = eRouterErrorNone; switch (m_Status) { case eRouterStatusOK: - SetReachable (); + SetReachable (true, false); // ipv4 break; case eRouterStatusFirewalled: - SetUnreachable (); + SetUnreachable (true, false); // ipv4 + break; + case eRouterStatusMesh: + m_RouterInfo.UpdateCaps (m_RouterInfo.GetCaps () | i2p::data::RouterInfo::eReachable); + break; + case eRouterStatusProxy: + m_RouterInfo.UpdateCaps (m_RouterInfo.GetCaps () | i2p::data::RouterInfo::eUnreachable); + break; + default: + ; + } + } + } + + void RouterContext::SetStatusV6 (RouterStatus status) + { + SetTestingV6 (false); + if (status != m_StatusV6) + { + LogPrint(eLogInfo, "Router: network status v6 changed ", + ROUTER_STATUS_NAMES[m_StatusV6], " -> ", ROUTER_STATUS_NAMES[status]); + m_StatusV6 = status; + switch (m_StatusV6) + { + case eRouterStatusOK: + SetReachable (false, true); // ipv6 + break; + case eRouterStatusFirewalled: + SetUnreachable (false, true); // ipv6 break; default: ; @@ -157,10 +386,12 @@ namespace i2p void RouterContext::UpdatePort (int port) { + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; bool updated = false; - for (auto& address : m_RouterInfo.GetAddresses ()) + for (auto& address : *addresses) { - if (!address->IsNTCP2 () && address->port != port) + if (address && address->port != port) { address->port = port; updated = true; @@ -170,23 +401,98 @@ namespace i2p UpdateRouterInfo (); } - void RouterContext::PublishNTCP2Address (int port, bool publish) + void RouterContext::PublishNTCP2Address (std::shared_ptr address, + int port, bool publish) const + { + if (!address) return; + if (!port && !address->port) port = SelectRandomPort (); + if (port) address->port = port; + address->published = publish; + memcpy (address->i, m_NTCP2Keys->iv, 16); + } + + void RouterContext::PublishNTCP2Address (int port, bool publish, bool v4, bool v6, bool ygg) { if (!m_NTCP2Keys) return; + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + bool updated = false; + if (v4) + { + auto addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V4Idx]; + if (addr && (addr->port != port || addr->published != publish)) + { + PublishNTCP2Address (addr, port, publish); + updated = true; + } + } + if (v6) + { + auto addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V6Idx]; + if (addr && (addr->port != port || addr->published != publish)) + { + PublishNTCP2Address (addr, port, publish); + updated = true; + } + } + if (ygg) + { + auto addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V6MeshIdx]; + if (addr && (addr->port != port || addr->published != publish)) + { + PublishNTCP2Address (addr, port, publish); + updated = true; + } + } + + if (updated) + UpdateRouterInfo (); + } + + void RouterContext::UpdateNTCP2Keys () + { + if (!m_NTCP2Keys) return; + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + for (auto& it: *addresses) + { + if (it && it->IsNTCP2 ()) + { + it->s = m_NTCP2Keys->staticPublicKey; + memcpy (it->i, m_NTCP2Keys->iv, 16); + } + } + } + + void RouterContext::PublishSSU2Address (int port, bool publish, bool v4, bool v6) + { + if (!m_SSU2Keys) return; + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + int newPort = 0; if (!port) { - port = rand () % (30777 - 9111) + 9111; // I2P network ports range - if (port == 9150) port = 9151; // Tor browser + for (const auto& address : *addresses) + if (address && address->port) + { + newPort = address->port; + break; + } + if (!newPort) newPort = SelectRandomPort (); } bool updated = false; - for (auto& address : m_RouterInfo.GetAddresses ()) + for (auto& address : *addresses) { - if (address->IsNTCP2 () && (address->port != port || address->ntcp2->isPublished != publish)) + if (address && address->IsSSU2 () && (!address->port || address->port != port || address->published != publish) && + ((v4 && address->IsV4 ()) || (v6 && address->IsV6 ()))) { - address->port = port; - address->cost = publish ? 3 : 14; - address->ntcp2->isPublished = publish; - address->ntcp2->iv = m_NTCP2Keys->iv; + if (port) address->port = port; + else if (!address->port) address->port = newPort; + address->published = publish; + if (publish) + address->caps |= (i2p::data::RouterInfo::eSSUIntroducer | i2p::data::RouterInfo::eSSUTesting); + else + address->caps &= ~(i2p::data::RouterInfo::eSSUIntroducer | i2p::data::RouterInfo::eSSUTesting); updated = true; } } @@ -194,70 +500,116 @@ namespace i2p UpdateRouterInfo (); } - void RouterContext::UpdateNTCP2Address (bool enable) + void RouterContext::UpdateSSU2Keys () { - auto& addresses = m_RouterInfo.GetAddresses (); - bool found = false, updated = false; - for (auto it = addresses.begin (); it != addresses.end (); ++it) + if (!m_SSU2Keys) return; + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + for (auto& it: *addresses) { - if ((*it)->IsNTCP2 ()) + if (it && it->IsSSU2 ()) { - found = true; - if (!enable) - { - addresses.erase (it); - updated= true; - } - break; + it->s = m_SSU2Keys->staticPublicKey; + it->i = m_SSU2Keys->intro; } } - if (enable && !found) - { - m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv); - updated = true; - } - if (updated) - UpdateRouterInfo (); } void RouterContext::UpdateAddress (const boost::asio::ip::address& host) { + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; bool updated = false; - for (auto& address : m_RouterInfo.GetAddresses ()) + if (host.is_v4 ()) { - if (address->host != host && address->IsCompatible (host)) + auto addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V4Idx]; + if (addr && addr->host != host) { - address->host = host; + addr->host = host; + updated = true; + } + addr = (*addresses)[i2p::data::RouterInfo::eSSU2V4Idx]; + if (addr && addr->host != host) + { + addr->host = host; updated = true; } } + else if (host.is_v6 ()) + { + auto addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V6Idx]; + if (addr && addr->host != host) + { + addr->host = host; + updated = true; + } + addr = (*addresses)[i2p::data::RouterInfo::eSSU2V6Idx]; + if (addr && (addr->host != host || !addr->ssu->mtu)) + { + addr->host = host; + if (m_StatusV6 != eRouterStatusProxy) + { + // update MTU + auto mtu = i2p::util::net::GetMTU (host); + if (mtu) + { + LogPrint (eLogDebug, "Router: Our v6 MTU=", mtu); + int maxMTU = i2p::util::net::GetMaxMTU (host.to_v6 ()); + if (mtu > maxMTU) + { + mtu = maxMTU; + LogPrint(eLogWarning, "Router: MTU dropped to upper limit of ", maxMTU, " bytes"); + } + addr->ssu->mtu = mtu; + } + } + updated = true; + } + } + auto ts = i2p::util::GetSecondsSinceEpoch (); if (updated || ts > m_LastUpdateTime + ROUTER_INFO_UPDATE_INTERVAL) UpdateRouterInfo (); } - bool RouterContext::AddIntroducer (const i2p::data::RouterInfo::Introducer& introducer) + bool RouterContext::AddSSU2Introducer (const i2p::data::RouterInfo::Introducer& introducer, bool v4) { - bool ret = m_RouterInfo.AddIntroducer (introducer); + bool ret = m_RouterInfo.AddSSU2Introducer (introducer, v4); if (ret) UpdateRouterInfo (); return ret; } - void RouterContext::RemoveIntroducer (const boost::asio::ip::udp::endpoint& e) + void RouterContext::RemoveSSU2Introducer (const i2p::data::IdentHash& h, bool v4) { - if (m_RouterInfo.RemoveIntroducer (e)) + if (m_RouterInfo.RemoveSSU2Introducer (h, v4)) UpdateRouterInfo (); } + void RouterContext::UpdateSSU2Introducer (const i2p::data::IdentHash& h, bool v4, uint32_t iTag, uint32_t iExp) + { + if (m_RouterInfo.UpdateSSU2Introducer (h, v4, iTag, iExp)) + UpdateRouterInfo (); + } + + void RouterContext::ClearSSU2Introducers (bool v4) + { + auto addr = m_RouterInfo.GetSSU2Address (v4); + if (addr && !addr->ssu->introducers.empty ()) + { + addr->ssu->introducers.clear (); + UpdateRouterInfo (); + } + } + void RouterContext::SetFloodfill (bool floodfill) { m_IsFloodfill = floodfill; if (floodfill) - m_RouterInfo.SetCaps (m_RouterInfo.GetCaps () | i2p::data::RouterInfo::eFloodfill); + m_RouterInfo.UpdateFloodfillProperty (true); else { - m_RouterInfo.SetCaps (m_RouterInfo.GetCaps () & ~i2p::data::RouterInfo::eFloodfill); + m_RouterInfo.UpdateFloodfillProperty (false); // we don't publish number of routers and leaseset for non-floodfill m_RouterInfo.DeleteProperty (i2p::data::ROUTER_INFO_PROPERTY_LEASESETS); m_RouterInfo.DeleteProperty (i2p::data::ROUTER_INFO_PROPERTY_ROUTERS); @@ -294,15 +646,15 @@ namespace i2p /* detect parameters */ switch (L) { - case i2p::data::CAPS_FLAG_LOW_BANDWIDTH1 : limit = 12; type = low; break; - case i2p::data::CAPS_FLAG_LOW_BANDWIDTH2 : limit = 48; type = low; break; - case i2p::data::CAPS_FLAG_HIGH_BANDWIDTH1 : limit = 64; type = high; break; - case i2p::data::CAPS_FLAG_HIGH_BANDWIDTH2 : limit = 128; type = high; break; - case i2p::data::CAPS_FLAG_HIGH_BANDWIDTH3 : limit = 256; type = high; break; - case i2p::data::CAPS_FLAG_EXTRA_BANDWIDTH1 : limit = 2048; type = extra; break; + case i2p::data::CAPS_FLAG_LOW_BANDWIDTH1 : limit = 12; type = low; break; + case i2p::data::CAPS_FLAG_LOW_BANDWIDTH2 : limit = i2p::data::LOW_BANDWIDTH_LIMIT; type = low; break; // 48 + case i2p::data::CAPS_FLAG_LOW_BANDWIDTH3 : limit = 64; type = low; break; + case i2p::data::CAPS_FLAG_LOW_BANDWIDTH4 : limit = 128; type = low; break; + case i2p::data::CAPS_FLAG_HIGH_BANDWIDTH : limit = i2p::data::HIGH_BANDWIDTH_LIMIT; type = high; break; // 256 + case i2p::data::CAPS_FLAG_EXTRA_BANDWIDTH1 : limit = i2p::data::EXTRA_BANDWIDTH_LIMIT; type = extra; break; // 2048 case i2p::data::CAPS_FLAG_EXTRA_BANDWIDTH2 : limit = 1000000; type = unlim; break; // 1Gbyte/s default: - limit = 48; type = low; + limit = i2p::data::LOW_BANDWIDTH_LIMIT; type = low; // 48 } /* update caps & flags in RI */ auto caps = m_RouterInfo.GetCaps (); @@ -312,23 +664,26 @@ namespace i2p { case low : /* not set */; break; case extra : caps |= i2p::data::RouterInfo::eExtraBandwidth; break; // 'P' - case unlim : caps |= i2p::data::RouterInfo::eExtraBandwidth; // no break here, extra + high means 'X' - case high : caps |= i2p::data::RouterInfo::eHighBandwidth; break; + case unlim : caps |= i2p::data::RouterInfo::eExtraBandwidth; + [[fallthrough]]; + // no break here, extra + high means 'X' + case high : caps |= i2p::data::RouterInfo::eHighBandwidth; break; } - m_RouterInfo.SetCaps (caps); + m_RouterInfo.UpdateCaps (caps); UpdateRouterInfo (); m_BandwidthLimit = limit; } void RouterContext::SetBandwidth (int limit) { - if (limit > 2000) { SetBandwidth('X'); } - else if (limit > 256) { SetBandwidth('P'); } - else if (limit > 128) { SetBandwidth('O'); } - else if (limit > 64) { SetBandwidth('N'); } - else if (limit > 48) { SetBandwidth('M'); } - else if (limit > 12) { SetBandwidth('L'); } + if (limit > (int)i2p::data::EXTRA_BANDWIDTH_LIMIT) { SetBandwidth('X'); } + else if (limit > (int)i2p::data::HIGH_BANDWIDTH_LIMIT) { SetBandwidth('P'); } + else if (limit > 128) { SetBandwidth('O'); } + else if (limit > 64) { SetBandwidth('N'); } + else if (limit > (int)i2p::data::LOW_BANDWIDTH_LIMIT) { SetBandwidth('M'); } + else if (limit > 12) { SetBandwidth('L'); } else { SetBandwidth('K'); } + m_BandwidthLimit = limit; // set precise limit } void RouterContext::SetShareRatio (int percents) @@ -343,98 +698,183 @@ namespace i2p return m_RouterInfo.GetCaps () & i2p::data::RouterInfo::eUnreachable; } - void RouterContext::PublishNTCPAddress (bool publish, bool v4only) + void RouterContext::SetUnreachable (bool v4, bool v6) { - auto& addresses = m_RouterInfo.GetAddresses (); - if (publish) + if (v4 || (v6 && !SupportsV4 ())) { - for (const auto& addr : addresses) // v4 - { - if (addr->transportStyle == i2p::data::RouterInfo::eTransportSSU && - addr->host.is_v4 ()) - { - // insert NTCP address with host/port from SSU - m_RouterInfo.AddNTCPAddress (addr->host.to_string ().c_str (), addr->port); - break; - } - } - if (!v4only) - { - for (const auto& addr : addresses) // v6 - { - if (addr->transportStyle == i2p::data::RouterInfo::eTransportSSU && - addr->host.is_v6 ()) - { - // insert NTCP address with host/port from SSU - m_RouterInfo.AddNTCPAddress (addr->host.to_string ().c_str (), addr->port); - break; - } - } - } + // set caps + uint8_t caps = m_RouterInfo.GetCaps (); + caps &= ~i2p::data::RouterInfo::eReachable; + caps |= i2p::data::RouterInfo::eUnreachable; + if (v6 || !SupportsV6 ()) + caps &= ~i2p::data::RouterInfo::eFloodfill; // can't be floodfill + m_RouterInfo.UpdateCaps (caps); } - else - { - for (auto it = addresses.begin (); it != addresses.end ();) - { - if ((*it)->transportStyle == i2p::data::RouterInfo::eTransportNTCP && !(*it)->IsNTCP2 () && - (!v4only || (*it)->host.is_v4 ())) - { - it = addresses.erase (it); - if (v4only) break; // otherwise might be more than one address - } - else - ++it; - } - } - } - - void RouterContext::SetUnreachable () - { - // set caps - uint8_t caps = m_RouterInfo.GetCaps (); - caps &= ~i2p::data::RouterInfo::eReachable; - caps |= i2p::data::RouterInfo::eUnreachable; - caps &= ~i2p::data::RouterInfo::eFloodfill; // can't be floodfill - caps &= ~i2p::data::RouterInfo::eSSUIntroducer; // can't be introducer - m_RouterInfo.SetCaps (caps); - // remove NTCP v4 address - PublishNTCPAddress (false); + uint16_t port = 0; // delete previous introducers - auto& addresses = m_RouterInfo.GetAddresses (); - for (auto& addr : addresses) - if (addr->ssu) - addr->ssu->introducers.clear (); + auto addresses = m_RouterInfo.GetAddresses (); + if (addresses) + { + for (auto& addr : *addresses) + if (addr && addr->ssu && ((v4 && addr->IsV4 ()) || (v6 && addr->IsV6 ()))) + { + addr->published = false; + addr->caps &= ~i2p::data::RouterInfo::eSSUIntroducer; // can't be introducer + addr->ssu->introducers.clear (); + port = addr->port; + } + } + // unpublish NTCP2 addreeses + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + if (ntcp2) + PublishNTCP2Address (port, false, v4, v6, false); // update + m_RouterInfo.UpdateSupportedTransports (); UpdateRouterInfo (); } - void RouterContext::SetReachable () + void RouterContext::SetReachable (bool v4, bool v6) { - // update caps - uint8_t caps = m_RouterInfo.GetCaps (); - caps &= ~i2p::data::RouterInfo::eUnreachable; - caps |= i2p::data::RouterInfo::eReachable; - caps |= i2p::data::RouterInfo::eSSUIntroducer; - if (m_IsFloodfill) - caps |= i2p::data::RouterInfo::eFloodfill; - m_RouterInfo.SetCaps (caps); - // insert NTCP back - bool ntcp; i2p::config::GetOption("ntcp", ntcp); - if (ntcp) - PublishNTCPAddress (true); + if (v4 || (v6 && !SupportsV4 ())) + { + // update caps + uint8_t caps = m_RouterInfo.GetCaps (); + caps &= ~i2p::data::RouterInfo::eUnreachable; + caps |= i2p::data::RouterInfo::eReachable; + if (m_IsFloodfill) + caps |= i2p::data::RouterInfo::eFloodfill; + m_RouterInfo.UpdateCaps (caps); + } + uint16_t port = 0; // delete previous introducers - auto& addresses = m_RouterInfo.GetAddresses (); - for (auto& addr : addresses) - if (addr->ssu) - addr->ssu->introducers.clear (); + bool isSSU2Published; i2p::config::GetOption ("ssu2.published", isSSU2Published); + auto addresses = m_RouterInfo.GetAddresses (); + if (addresses) + { + for (auto& addr : *addresses) + if (addr && addr->ssu && isSSU2Published && ((v4 && addr->IsV4 ()) || (v6 && addr->IsV6 ()))) + { + addr->published = true; + addr->caps |= i2p::data::RouterInfo::eSSUIntroducer; + addr->ssu->introducers.clear (); + if (addr->port) port = addr->port; + } + } + // publish NTCP2 + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + if (ntcp2) + { + bool published; i2p::config::GetOption ("ntcp2.published", published); + if (published) + { + uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port); + if (!ntcp2Port) ntcp2Port = port; + PublishNTCP2Address (ntcp2Port, true, v4, v6, false); + } + } // update + m_RouterInfo.UpdateSupportedTransports (); UpdateRouterInfo (); } void RouterContext::SetSupportsV6 (bool supportsV6) { if (supportsV6) - m_RouterInfo.EnableV6 (); + { + // insert v6 addresses if necessary + bool foundNTCP2 = false, foundSSU2 = false; + uint16_t port = 0; + auto addresses = m_RouterInfo.GetAddresses (); + if (addresses) + { + for (auto& addr: *addresses) + { + if (addr && addr->IsV6 () && !i2p::util::net::IsYggdrasilAddress (addr->host)) + { + switch (addr->transportStyle) + { + case i2p::data::RouterInfo::eTransportNTCP2: + foundNTCP2 = true; + break; + case i2p::data::RouterInfo::eTransportSSU2: + foundSSU2 = true; + break; + default: ; + } + } + if (addr) port = addr->port; + } + } + if (!port) + { + i2p::config::GetOption("port", port); + if (!port) port = SelectRandomPort (); + } + // NTCP2 + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + if (ntcp2) + { + if (!foundNTCP2) + { + uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port); + if (!ntcp2Port) ntcp2Port = port; + bool added = false; + bool ntcp2Published; i2p::config::GetOption("ntcp2.published", ntcp2Published); + if (ntcp2Published) + { + std::string ntcp2Host; + if (!i2p::config::IsDefault ("ntcp2.addressv6")) + i2p::config::GetOption ("ntcp2.addressv6", ntcp2Host); + else + i2p::config::GetOption("host", ntcp2Host); + if (!ntcp2Host.empty () && ntcp2Port) + { + auto addr = boost::asio::ip::make_address (ntcp2Host); + if (addr.is_v6 ()) + { + m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port); + added = true; + } + } + } + if (!added) + m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, i2p::data::RouterInfo::eV6); + } + } + else + m_RouterInfo.RemoveNTCP2Address (false); + // SSU2 + bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2); + if (ssu2) + { + if (!foundSSU2) + { + uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port); + if (!ssu2Port) ssu2Port = port; + bool added = false; + bool ssu2Published; i2p::config::GetOption("ssu2.published", ssu2Published); + if (ssu2Published && ssu2Port) + { + std::string host; i2p::config::GetOption("host", host); + if (!host.empty ()) + { + auto addr = boost::asio::ip::make_address (host); + if (addr.is_v6 ()) + { + m_RouterInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port); + added = true; + } + } + } + if (!added) + m_RouterInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, i2p::data::RouterInfo::eV6); + } + } + else + m_RouterInfo.RemoveSSU2Address (false); + if (ntcp2 || ssu2) + m_RouterInfo.EnableV6 (); + } else m_RouterInfo.DisableV6 (); UpdateRouterInfo (); @@ -443,83 +883,161 @@ namespace i2p void RouterContext::SetSupportsV4 (bool supportsV4) { if (supportsV4) - m_RouterInfo.EnableV4 (); + { + bool foundNTCP2 = false, foundSSU2 = false; + uint16_t port = 0; + auto addresses = m_RouterInfo.GetAddresses (); + if (addresses) + { + for (auto& addr: *addresses) + { + if (addr && addr->IsV4 ()) + { + switch (addr->transportStyle) + { + case i2p::data::RouterInfo::eTransportNTCP2: + foundNTCP2 = true; + break; + case i2p::data::RouterInfo::eTransportSSU2: + foundSSU2 = true; + break; + default: ; + } + } + if (addr && addr->port) port = addr->port; + } + } + if (!port) + { + i2p::config::GetOption("port", port); + if (!port) port = SelectRandomPort (); + } + // NTCP2 + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + if (ntcp2) + { + if (!foundNTCP2) + { + uint16_t ntcp2Port; i2p::config::GetOption ("ntcp2.port", ntcp2Port); + if (!ntcp2Port) ntcp2Port = port; + bool added = false; + bool ntcp2Published; i2p::config::GetOption("ntcp2.published", ntcp2Published); + if (ntcp2Published && ntcp2Port) + { + std::string host; i2p::config::GetOption("host", host); + if (!host.empty ()) + { + auto addr = boost::asio::ip::make_address (host); + if (addr.is_v4 ()) + { + m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, addr, ntcp2Port); + added = true; + } + } + } + if (!added) + m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, ntcp2Port, i2p::data::RouterInfo::eV4); + } + } + else + m_RouterInfo.RemoveNTCP2Address (true); + // SSU2 + bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2); + if (ssu2) + { + if (!foundSSU2) + { + uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port); + if (!ssu2Port) ssu2Port = port; + bool added = false; + bool ssu2Published; i2p::config::GetOption("ssu2.published", ssu2Published); + std::string host; i2p::config::GetOption("host", host); + if (ssu2Published && ssu2Port) + { + std::string host; i2p::config::GetOption("host", host); + if (!host.empty ()) + { + auto addr = boost::asio::ip::make_address (host); + if (addr.is_v4 ()) + { + m_RouterInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, addr, ssu2Port); + added = true; + } + } + } + if (!added) + m_RouterInfo.AddSSU2Address (m_SSU2Keys->staticPublicKey, m_SSU2Keys->intro, ssu2Port, i2p::data::RouterInfo::eV4); + } + } + else + m_RouterInfo.RemoveSSU2Address (true); + if (ntcp2 || ssu2) + m_RouterInfo.EnableV4 (); + } else m_RouterInfo.DisableV4 (); UpdateRouterInfo (); } - - void RouterContext::UpdateNTCPV6Address (const boost::asio::ip::address& host) + void RouterContext::SetSupportsMesh (bool supportsmesh, const boost::asio::ip::address_v6& host) { - bool updated = false, found = false; - int port = 0; - auto& addresses = m_RouterInfo.GetAddresses (); - for (auto& addr: addresses) + if (supportsmesh) { - if (addr->host.is_v6 () && addr->transportStyle == i2p::data::RouterInfo::eTransportNTCP) + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + m_RouterInfo.EnableMesh (); + if ((*addresses)[i2p::data::RouterInfo::eNTCP2V6MeshIdx]) return; // we have mesh address already + uint16_t port = 0; + i2p::config::GetOption ("ntcp2.port", port); + if (!port) i2p::config::GetOption("port", port); + if (!port) { - if (addr->host != host) + for (auto& addr: *addresses) { - addr->host = host; - updated = true; + if (addr && addr->port) + { + port = addr->port; + break; + } } - found = true; } - else - port = addr->port; + if (!port) port = SelectRandomPort (); + m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, host, port); } - if (!found) + else + m_RouterInfo.DisableMesh (); + UpdateRouterInfo (); + } + + void RouterContext::SetMTU (int mtu, bool v4) + { + if (mtu < 1280 || mtu > 1500) return; + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + for (auto& addr: *addresses) { - // create new address - m_RouterInfo.AddNTCPAddress (host.to_string ().c_str (), port); - auto mtu = i2p::util::net::GetMTU (host); - if (mtu) + if (addr && addr->ssu && ((v4 && addr->IsV4 ()) || (!v4 && addr->IsV6 ()))) { - LogPrint (eLogDebug, "Router: Our v6 MTU=", mtu); - if (mtu > 1472) { // TODO: magic constant - mtu = 1472; - LogPrint(eLogWarning, "Router: MTU dropped to upper limit of 1472 bytes"); - } + addr->ssu->mtu = mtu; + LogPrint (eLogDebug, "Router: MTU for ", v4 ? "ipv4" : "ipv6", " address ", addr->host.to_string(), " is set to ", mtu); } - m_RouterInfo.AddSSUAddress (host.to_string ().c_str (), port, GetIdentHash (), mtu ? mtu : 1472); // TODO - updated = true; } - if (updated) - UpdateRouterInfo (); } void RouterContext::UpdateNTCP2V6Address (const boost::asio::ip::address& host) { - bool updated = false, found = false; - int port = 0; - auto& addresses = m_RouterInfo.GetAddresses (); - for (auto& addr: addresses) + auto addresses = m_RouterInfo.GetAddresses (); + if (!addresses) return; + std::shared_ptr addr; + if (i2p::util::net::IsYggdrasilAddress (host)) // yggdrasil + addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V6MeshIdx]; + else if (host.is_v6 ()) + addr = (*addresses)[i2p::data::RouterInfo::eNTCP2V6Idx]; + if (addr && addr->IsPublishedNTCP2 () && addr->host != host) { - if (addr->IsPublishedNTCP2 ()) - { - if (addr->host.is_v6 ()) - { - if (addr->host != host) - { - addr->host = host; - updated = true; - } - found = true; - break; - } - else - port = addr->port; // NTCP2 v4 - } - } - - if (!found && port) // we have found NTCP2 v4 but not v6 - { - m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, host, port); - updated = true; - } - if (updated) + addr->host = host; UpdateRouterInfo (); + } } void RouterContext::UpdateStats () @@ -541,31 +1059,44 @@ namespace i2p bool RouterContext::Load () { - std::ifstream fk (i2p::fs::DataDirPath (ROUTER_KEYS), std::ifstream::in | std::ifstream::binary); - if (!fk.is_open ()) return false; - fk.seekg (0, std::ios::end); - size_t len = fk.tellg(); - fk.seekg (0, std::ios::beg); + { + std::ifstream fk (i2p::fs::DataDirPath (ROUTER_KEYS), std::ifstream::in | std::ifstream::binary); + if (!fk.is_open ()) return false; + fk.seekg (0, std::ios::end); + size_t len = fk.tellg(); + fk.seekg (0, std::ios::beg); - if (len == sizeof (i2p::data::Keys)) // old keys file format - { - i2p::data::Keys keys; - fk.read ((char *)&keys, sizeof (keys)); - m_Keys = keys; + if (len == sizeof (i2p::data::Keys)) // old keys file format + { + i2p::data::Keys keys; + fk.read ((char *)&keys, sizeof (keys)); + m_Keys = keys; + } + else // new keys file format + { + uint8_t * buf = new uint8_t[len]; + fk.read ((char *)buf, len); + m_Keys.FromBuffer (buf, len); + delete[] buf; + } } - else // new keys file format + std::shared_ptr oldIdentity; + if (m_Keys.GetPublic ()->GetSigningKeyType () == i2p::data::SIGNING_KEY_TYPE_DSA_SHA1 || + m_Keys.GetPublic ()->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ELGAMAL) { - uint8_t * buf = new uint8_t[len]; - fk.read ((char *)buf, len); - m_Keys.FromBuffer (buf, len); - delete[] buf; + // update keys + LogPrint (eLogInfo, "Router: router keys are obsolete. Creating new"); + oldIdentity = m_Keys.GetPublic (); + m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, + i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD); + SaveKeys (); } // read NTCP2 keys if available std::ifstream n2k (i2p::fs::DataDirPath (NTCP2_KEYS), std::ifstream::in | std::ifstream::binary); if (n2k) { n2k.seekg (0, std::ios::end); - len = n2k.tellg(); + size_t len = n2k.tellg(); n2k.seekg (0, std::ios::beg); if (len == sizeof (NTCP2PrivateKeys)) { @@ -574,18 +1105,30 @@ namespace i2p } n2k.close (); } + // read SSU2 keys if available + std::ifstream s2k (i2p::fs::DataDirPath (SSU2_KEYS), std::ifstream::in | std::ifstream::binary); + if (s2k) + { + s2k.seekg (0, std::ios::end); + size_t len = s2k.tellg(); + s2k.seekg (0, std::ios::beg); + if (len == sizeof (SSU2PrivateKeys)) + { + m_SSU2Keys.reset (new SSU2PrivateKeys ()); + s2k.read ((char *)m_SSU2Keys.get (), sizeof (SSU2PrivateKeys)); + } + s2k.close (); + } // read RouterInfo - m_RouterInfo.SetRouterIdentity (GetIdentity ()); + m_RouterInfo.SetRouterIdentity (oldIdentity ? oldIdentity : GetIdentity ()); i2p::data::RouterInfo routerInfo(i2p::fs::DataDirPath (ROUTER_INFO)); if (!routerInfo.IsUnreachable ()) // router.info looks good { m_RouterInfo.Update (routerInfo.GetBuffer (), routerInfo.GetBufferLen ()); - m_RouterInfo.SetProperty ("coreVersion", I2P_VERSION); + if (oldIdentity) + m_RouterInfo.SetRouterIdentity (GetIdentity ()); // from new keys m_RouterInfo.SetProperty ("router.version", I2P_VERSION); - - // Migration to 0.9.24. TODO: remove later - m_RouterInfo.DeleteProperty ("coreVersion"); - m_RouterInfo.DeleteProperty ("stat_uptime"); + m_RouterInfo.DeleteProperty ("coreVersion"); // TODO: remove later } else { @@ -594,17 +1137,30 @@ namespace i2p } if (IsUnreachable ()) - SetReachable (); // we assume reachable until we discover firewall through peer tests + SetReachable (true, true); // we assume reachable until we discover firewall through peer tests - // read NTCP2 - bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); - if (ntcp2) + bool updated = false; + // create new NTCP2 keys if required + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + bool ygg; i2p::config::GetOption("meshnets.yggdrasil", ygg); + if ((ntcp2 || ygg) && !m_NTCP2Keys) { - if (!m_NTCP2Keys) NewNTCP2Keys (); - UpdateNTCP2Address (true); // enable NTCP2 + NewNTCP2Keys (); + UpdateNTCP2Keys (); + updated = true; } - else - UpdateNTCP2Address (false); // disable NTCP2 + // create new SSU2 keys if required + bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2); + if (ssu2 && !m_SSU2Keys) + { + NewSSU2Keys (); + UpdateSSU2Keys (); + updated = true; + } + if (m_RouterInfo.UpdateCongestion (i2p::data::RouterInfo::eLowCongestion)) + updated = true; + if (updated) + UpdateRouterInfo (); return true; } @@ -625,55 +1181,378 @@ namespace i2p return i2p::tunnel::tunnels.GetExploratoryPool (); } - void RouterContext::HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from) + int RouterContext::GetCongestionLevel (bool longTerm) const { - i2p::HandleI2NPMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len), from)); + return std::max ( + i2p::tunnel::tunnels.GetCongestionLevel (), + i2p::transport::transports.GetCongestionLevel (longTerm) + ); + } + + void RouterContext::HandleI2NPMessage (const uint8_t * buf, size_t len) + { + i2p::HandleI2NPMessage (CreateI2NPMessage (buf, GetI2NPMessageLength (buf, len))); + } + + bool RouterContext::HandleCloveI2NPMessage (I2NPMessageType typeID, const uint8_t * payload, + size_t len, uint32_t msgID, i2p::garlic::ECIESX25519AEADRatchetSession * from) + { + if (typeID == eI2NPTunnelTest) + { + // try tunnel test + auto pool = GetTunnelPool (); + if (pool && pool->ProcessTunnelTest (bufbe32toh (payload + TUNNEL_TEST_MSGID_OFFSET), bufbe64toh (payload + TUNNEL_TEST_TIMESTAMP_OFFSET))) + return true; + } + auto msg = CreateI2NPMessage (typeID, payload, len, msgID); + if (!msg) return false; + i2p::HandleI2NPMessage (msg); + return true; } void RouterContext::ProcessGarlicMessage (std::shared_ptr msg) { - std::unique_lock l(m_GarlicMutex); - i2p::garlic::GarlicDestination::ProcessGarlicMessage (msg); + if (m_Service) + boost::asio::post (m_Service->GetService (), std::bind (&RouterContext::PostGarlicMessage, this, msg)); + else + LogPrint (eLogError, "Router: service is NULL"); } + void RouterContext::PostGarlicMessage (std::shared_ptr msg) + { + uint8_t * buf = msg->GetPayload (); + uint32_t len = bufbe32toh (buf); + if (len > msg->GetLength ()) + { + LogPrint (eLogWarning, "Router: garlic message length ", len, " exceeds I2NP message length ", msg->GetLength ()); + return; + } + buf += 4; + if (!HandleECIESx25519TagMessage (buf, len)) // try tag first + { + // then Noise_N one-time decryption + if (m_ECIESSession) + m_ECIESSession->HandleNextMessage (buf, len); + else + LogPrint (eLogError, "Router: Session is not set for ECIES router"); + } + } + void RouterContext::ProcessDeliveryStatusMessage (std::shared_ptr msg) { - std::unique_lock l(m_GarlicMutex); - i2p::garlic::GarlicDestination::ProcessDeliveryStatusMessage (msg); + if (m_Service) + boost::asio::post (m_Service->GetService (), std::bind (&RouterContext::PostDeliveryStatusMessage, this, msg)); + else + LogPrint (eLogError, "Router: service is NULL"); } - void RouterContext::CleanupDestination () + void RouterContext::PostDeliveryStatusMessage (std::shared_ptr msg) { - std::unique_lock l(m_GarlicMutex); - i2p::garlic::GarlicDestination::CleanupExpiredTags (); + if (m_PublishReplyToken == bufbe32toh (msg->GetPayload () + DELIVERY_STATUS_MSGID_OFFSET)) + { + LogPrint (eLogInfo, "Router: Publishing confirmed. reply token=", m_PublishReplyToken); + m_PublishExcluded.clear (); + m_PublishReplyToken = 0; + SchedulePublish (); + } + else + i2p::garlic::GarlicDestination::ProcessDeliveryStatusMessage (msg); } + void RouterContext::SubmitECIESx25519Key (const uint8_t * key, uint64_t tag) + { + if (m_Service) + { + struct + { + uint8_t k[32]; + uint64_t t; + } data; + memcpy (data.k, key, 32); + data.t = tag; + boost::asio::post (m_Service->GetService (), [this,data](void) + { + AddECIESx25519Key (data.k, data.t); + }); + } + else + LogPrint (eLogError, "Router: service is NULL"); + } + uint32_t RouterContext::GetUptime () const { - return i2p::util::GetSecondsSinceEpoch () - m_StartupTime; + return i2p::util::GetMonotonicSeconds () - m_StartupTime; } - bool RouterContext::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const + bool RouterContext::Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const { - return m_Decryptor ? m_Decryptor->Decrypt (encrypted, data, ctx, true) : false; + return m_Decryptor ? m_Decryptor->Decrypt (encrypted, data) : false; } - bool RouterContext::DecryptTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const + bool RouterContext::DecryptTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data) { - return m_Decryptor ? m_Decryptor->Decrypt (encrypted, data, ctx, false) : false; + return DecryptECIESTunnelBuildRecord (encrypted, data, ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE); } - i2p::crypto::X25519Keys& RouterContext::GetStaticKeys () + bool RouterContext::DecryptECIESTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data, size_t clearTextSize) { - if (!m_StaticKeys) + // m_InitialNoiseState is h = SHA256(h || hepk) + m_CurrentNoiseState = m_InitialNoiseState; + m_CurrentNoiseState.MixHash (encrypted, 32); // h = SHA256(h || sepk) + uint8_t sharedSecret[32]; + if (!m_TunnelDecryptor->Decrypt (encrypted, sharedSecret)) + { + LogPrint (eLogWarning, "Router: Incorrect ephemeral public key"); + return false; + } + m_CurrentNoiseState.MixKey (sharedSecret); + encrypted += 32; + uint8_t nonce[12]; + memset (nonce, 0, 12); + if (!i2p::crypto::AEADChaCha20Poly1305 (encrypted, clearTextSize, m_CurrentNoiseState.m_H, 32, + m_CurrentNoiseState.m_CK + 32, nonce, data, clearTextSize, false)) // decrypt + { + LogPrint (eLogWarning, "Router: Tunnel record AEAD decryption failed"); + return false; + } + m_CurrentNoiseState.MixHash (encrypted, clearTextSize + 16); // h = SHA256(h || ciphertext) + return true; + } + + bool RouterContext::DecryptTunnelShortRequestRecord (const uint8_t * encrypted, uint8_t * data) + { + return DecryptECIESTunnelBuildRecord (encrypted, data, SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE); + } + + i2p::crypto::X25519Keys& RouterContext::GetNTCP2StaticKeys () + { + if (!m_NTCP2StaticKeys) { if (!m_NTCP2Keys) NewNTCP2Keys (); auto x = new i2p::crypto::X25519Keys (m_NTCP2Keys->staticPrivateKey, m_NTCP2Keys->staticPublicKey); - if (!m_StaticKeys) - m_StaticKeys.reset (x); + if (!m_NTCP2StaticKeys) + m_NTCP2StaticKeys.reset (x); else delete x; } - return *m_StaticKeys; + return *m_NTCP2StaticKeys; } + + i2p::crypto::X25519Keys& RouterContext::GetSSU2StaticKeys () + { + if (!m_SSU2StaticKeys) + { + if (!m_SSU2Keys) NewSSU2Keys (); + auto x = new i2p::crypto::X25519Keys (m_SSU2Keys->staticPrivateKey, m_SSU2Keys->staticPublicKey); + if (!m_SSU2StaticKeys) + m_SSU2StaticKeys.reset (x); + else + delete x; + } + return *m_SSU2StaticKeys; + } + + void RouterContext::ScheduleInitialPublish () + { + if (m_PublishTimer) + { + m_PublishTimer->expires_from_now (boost::posix_time::seconds(ROUTER_INFO_INITIAL_PUBLISH_INTERVAL)); + m_PublishTimer->async_wait (std::bind (&RouterContext::HandleInitialPublishTimer, + this, std::placeholders::_1)); + } + else + LogPrint (eLogError, "Router: Publish timer is NULL"); + } + + void RouterContext::HandleInitialPublishTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + if (m_RouterInfo.IsReachableBy (i2p::data::RouterInfo::eAllTransports)) + { + UpdateCongestion (); + HandlePublishTimer (ecode); + } + else + { + UpdateTimestamp (i2p::util::GetSecondsSinceEpoch ()); + ScheduleInitialPublish (); + } + } + } + + void RouterContext::SchedulePublish () + { + if (m_PublishTimer) + { + m_PublishTimer->cancel (); + m_PublishTimer->expires_from_now (boost::posix_time::seconds(ROUTER_INFO_PUBLISH_INTERVAL + + m_Rng () % ROUTER_INFO_PUBLISH_INTERVAL_VARIANCE)); + m_PublishTimer->async_wait (std::bind (&RouterContext::HandlePublishTimer, + this, std::placeholders::_1)); + } + else + LogPrint (eLogError, "Router: Publish timer is NULL"); + } + + void RouterContext::HandlePublishTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + UpdateTimestamp (i2p::util::GetSecondsSinceEpoch ()); + if (!m_IsHiddenMode) + { + m_PublishExcluded.clear (); + m_PublishReplyToken = 0; + if (IsFloodfill ()) + { + UpdateStats (); // for floodfill + m_PublishExcluded.insert (i2p::context.GetIdentHash ()); // don't publish to ourselves + } + Publish (); + SchedulePublishResend (); + } + else + SchedulePublish (); + } + } + + void RouterContext::Publish () + { + if (!i2p::transport::transports.IsOnline ()) return; + if (m_PublishExcluded.size () > ROUTER_INFO_MAX_PUBLISH_EXCLUDED_FLOODFILLS) + { + LogPrint (eLogError, "Router: Couldn't publish our RouterInfo to ", ROUTER_INFO_MAX_PUBLISH_EXCLUDED_FLOODFILLS, " closest routers. Try again"); + m_PublishExcluded.clear (); + UpdateTimestamp (i2p::util::GetSecondsSinceEpoch ()); + } + + auto floodfill = i2p::data::netdb.GetClosestFloodfill (i2p::context.GetIdentHash (), m_PublishExcluded); + if (floodfill) + { + uint32_t replyToken; + RAND_bytes ((uint8_t *)&replyToken, 4); + LogPrint (eLogInfo, "Router: Publishing our RouterInfo to ", i2p::data::GetIdentHashAbbreviation(floodfill->GetIdentHash ()), ". reply token=", replyToken); + auto onDrop = [this]() + { + if (m_Service) + boost::asio::post (m_Service->GetService (), [this]() { HandlePublishResendTimer (boost::system::error_code ()); }); + }; + if (i2p::transport::transports.IsConnected (floodfill->GetIdentHash ()) || // already connected + (floodfill->IsReachableFrom (i2p::context.GetRouterInfo ()) && // are we able to connect + !i2p::transport::transports.RoutesRestricted ())) // and routes not restricted + { + // send directly + auto msg = CreateDatabaseStoreMsg (i2p::context.GetSharedRouterInfo (), replyToken); + msg->onDrop = onDrop; + i2p::transport::transports.SendMessage (floodfill->GetIdentHash (), msg); + } + else + { + // otherwise through exploratory + auto exploratoryPool = i2p::tunnel::tunnels.GetExploratoryPool (); + auto outbound = exploratoryPool ? exploratoryPool->GetNextOutboundTunnel (nullptr, floodfill->GetCompatibleTransports (false)) : nullptr; + auto inbound = exploratoryPool ? exploratoryPool->GetNextInboundTunnel (nullptr, floodfill->GetCompatibleTransports (true)) : nullptr; + if (inbound && outbound) + { + // encrypt for floodfill + auto msg = CreateDatabaseStoreMsg (i2p::context.GetSharedRouterInfo (), replyToken, inbound); + msg->onDrop = onDrop; + outbound->SendTunnelDataMsgTo (floodfill->GetIdentHash (), 0, + i2p::garlic::WrapECIESX25519MessageForRouter (msg, floodfill->GetIdentity ()->GetEncryptionPublicKey ())); + } + else + LogPrint (eLogInfo, "Router: Can't publish our RouterInfo. No tunnels. Try again in ", ROUTER_INFO_CONFIRMATION_TIMEOUT, " milliseconds"); + } + m_PublishExcluded.insert (floodfill->GetIdentHash ()); + m_PublishReplyToken = replyToken; + } + else + LogPrint (eLogInfo, "Router: Can't find floodfill to publish our RouterInfo"); + } + + void RouterContext::SchedulePublishResend () + { + if (m_PublishTimer) + { + m_PublishTimer->cancel (); + m_PublishTimer->expires_from_now (boost::posix_time::milliseconds(ROUTER_INFO_CONFIRMATION_TIMEOUT)); + m_PublishTimer->async_wait (std::bind (&RouterContext::HandlePublishResendTimer, + this, std::placeholders::_1)); + } + else + LogPrint (eLogError, "Router: Publish timer is NULL"); + } + + void RouterContext::HandlePublishResendTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + i2p::context.UpdateTimestamp (i2p::util::GetSecondsSinceEpoch ()); + Publish (); + SchedulePublishResend (); + } + } + + void RouterContext::ScheduleCongestionUpdate () + { + if (m_CongestionUpdateTimer) + { + m_CongestionUpdateTimer->cancel (); + m_CongestionUpdateTimer->expires_from_now (boost::posix_time::seconds( + ROUTER_INFO_CONGESTION_UPDATE_INTERVAL + m_Rng () % ROUTER_INFO_CONGESTION_UPDATE_INTERVAL_VARIANCE)); + m_CongestionUpdateTimer->async_wait (std::bind (&RouterContext::HandleCongestionUpdateTimer, + this, std::placeholders::_1)); + } + else + LogPrint (eLogError, "Router: Congestion update timer is NULL"); + } + + void RouterContext::HandleCongestionUpdateTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + UpdateCongestion (); + ScheduleCongestionUpdate (); + } + } + + void RouterContext::UpdateCongestion () + { + auto c = i2p::data::RouterInfo::eLowCongestion; + if (!AcceptsTunnels () || !m_ShareRatio) + c = i2p::data::RouterInfo::eRejectAll; + else + { + int congestionLevel = GetCongestionLevel (true); + if (congestionLevel > CONGESTION_LEVEL_HIGH) + c = i2p::data::RouterInfo::eHighCongestion; + else if (congestionLevel > CONGESTION_LEVEL_MEDIUM) + c = i2p::data::RouterInfo::eMediumCongestion; + } + if (m_RouterInfo.UpdateCongestion (c)) + UpdateRouterInfo (); + } + + void RouterContext::ScheduleCleanupTimer () + { + if (m_CleanupTimer) + { + m_CleanupTimer->cancel (); + m_CleanupTimer->expires_from_now (boost::posix_time::seconds(ROUTER_INFO_CLEANUP_INTERVAL)); + m_CleanupTimer->async_wait (std::bind (&RouterContext::HandleCleanupTimer, + this, std::placeholders::_1)); + } + else + LogPrint (eLogError, "Router: Cleanup timer is NULL"); + } + + void RouterContext::HandleCleanupTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + CleanupExpiredTags (); + ScheduleCleanupTimer (); + } + } } diff --git a/libi2pd/RouterContext.h b/libi2pd/RouterContext.h index 19fe08b2..754c49da 100644 --- a/libi2pd/RouterContext.h +++ b/libi2pd/RouterContext.h @@ -1,92 +1,165 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef ROUTER_CONTEXT_H__ #define ROUTER_CONTEXT_H__ #include #include #include -#include +#include +#include #include #include "Identity.h" #include "RouterInfo.h" #include "Garlic.h" +#include "util.h" namespace i2p { +namespace garlic +{ + class RouterIncomingRatchetSession; +} + const char ROUTER_INFO[] = "router.info"; const char ROUTER_KEYS[] = "router.keys"; - const char NTCP2_KEYS[] = "ntcp2.keys"; - const int ROUTER_INFO_UPDATE_INTERVAL = 1800; // 30 minutes + const char NTCP2_KEYS[] = "ntcp2.keys"; + const char SSU2_KEYS[] = "ssu2.keys"; + const int ROUTER_INFO_UPDATE_INTERVAL = 30*60; // 30 minutes + const int ROUTER_INFO_PUBLISH_INTERVAL = 39*60; // in seconds + const int ROUTER_INFO_INITIAL_PUBLISH_INTERVAL = 10; // in seconds + const int ROUTER_INFO_PUBLISH_INTERVAL_VARIANCE = 105;// in seconds + const int ROUTER_INFO_CONFIRMATION_TIMEOUT = 1600; // in milliseconds + const int ROUTER_INFO_MAX_PUBLISH_EXCLUDED_FLOODFILLS = 15; + const int ROUTER_INFO_CONGESTION_UPDATE_INTERVAL = 11*60; // in seconds + const int ROUTER_INFO_CONGESTION_UPDATE_INTERVAL_VARIANCE = 130; // in seconds + const int ROUTER_INFO_CLEANUP_INTERVAL = 102; // in seconds enum RouterStatus { eRouterStatusOK = 0, - eRouterStatusTesting = 1, - eRouterStatusFirewalled = 2, - eRouterStatusError = 3 + eRouterStatusFirewalled = 1, + eRouterStatusUnknown = 2, + eRouterStatusProxy = 3, + eRouterStatusMesh = 4 + }; + + const char* const ROUTER_STATUS_NAMES[] = + { + "OK", // 0 + "Firewalled", // 1 + "Unknown", // 2 + "Proxy", // 3 + "Mesh" // 4 }; enum RouterError { eRouterErrorNone = 0, - eRouterErrorClockSkew = 1 + eRouterErrorClockSkew = 1, + eRouterErrorOffline = 2, + eRouterErrorSymmetricNAT = 3, + eRouterErrorFullConeNAT = 4, + eRouterErrorNoDescriptors = 5 }; class RouterContext: public i2p::garlic::GarlicDestination { private: - struct NTCP2PrivateKeys + struct NTCP2PrivateKeys { uint8_t staticPublicKey[32]; uint8_t staticPrivateKey[32]; uint8_t iv[16]; - }; + }; + struct SSU2PrivateKeys + { + uint8_t staticPublicKey[32]; + uint8_t staticPrivateKey[32]; + uint8_t intro[32]; + }; + + class RouterService: public i2p::util::RunnableServiceWithWork + { + public: + + RouterService (): RunnableServiceWithWork ("Router") {}; + auto& GetService () { return GetIOService (); }; + void Start () { StartIOService (); }; + void Stop () { StopIOService (); }; + }; + public: RouterContext (); void Init (); - + void Start (); + void Stop (); + const i2p::data::PrivateKeys& GetPrivateKeys () const { return m_Keys; }; - i2p::data::RouterInfo& GetRouterInfo () { return m_RouterInfo; }; - std::shared_ptr GetSharedRouterInfo () const + i2p::data::LocalRouterInfo& GetRouterInfo () { return m_RouterInfo; }; + std::shared_ptr GetSharedRouterInfo () { - return std::shared_ptr (&m_RouterInfo, - [](const i2p::data::RouterInfo *) {}); + return std::shared_ptr (&m_RouterInfo, + [](i2p::data::RouterInfo *) {}); } std::shared_ptr GetSharedDestination () { return std::shared_ptr (this, [](i2p::garlic::GarlicDestination *) {}); } + std::shared_ptr CopyRouterInfoBuffer () const; + const uint8_t * GetNTCP2StaticPublicKey () const { return m_NTCP2Keys ? m_NTCP2Keys->staticPublicKey : nullptr; }; const uint8_t * GetNTCP2StaticPrivateKey () const { return m_NTCP2Keys ? m_NTCP2Keys->staticPrivateKey : nullptr; }; const uint8_t * GetNTCP2IV () const { return m_NTCP2Keys ? m_NTCP2Keys->iv : nullptr; }; - i2p::crypto::X25519Keys& GetStaticKeys (); + i2p::crypto::X25519Keys& GetNTCP2StaticKeys (); - uint32_t GetUptime () const; - uint32_t GetStartupTime () const { return m_StartupTime; }; + const uint8_t * GetSSU2StaticPublicKey () const { return m_SSU2Keys ? m_SSU2Keys->staticPublicKey : nullptr; }; + const uint8_t * GetSSU2StaticPrivateKey () const { return m_SSU2Keys ? m_SSU2Keys->staticPrivateKey : nullptr; }; + const uint8_t * GetSSU2IntroKey () const { return m_SSU2Keys ? m_SSU2Keys->intro : nullptr; }; + i2p::crypto::X25519Keys& GetSSU2StaticKeys (); + + uint32_t GetUptime () const; // in seconds uint64_t GetLastUpdateTime () const { return m_LastUpdateTime; }; uint64_t GetBandwidthLimit () const { return m_BandwidthLimit; }; uint64_t GetTransitBandwidthLimit () const { return (m_BandwidthLimit*m_ShareRatio)/100LL; }; + bool GetTesting () const { return m_Testing; }; + void SetTesting (bool testing); RouterStatus GetStatus () const { return m_Status; }; void SetStatus (RouterStatus status); RouterError GetError () const { return m_Error; }; - void SetError (RouterError error) { m_Status = eRouterStatusError; m_Error = error; }; + void SetError (RouterError error) { m_Error = error; }; + bool GetTestingV6 () const { return m_TestingV6; }; + void SetTestingV6 (bool testing); + RouterStatus GetStatusV6 () const { return m_StatusV6; }; + void SetStatusV6 (RouterStatus status); + RouterError GetErrorV6 () const { return m_ErrorV6; }; + void SetErrorV6 (RouterError error) { m_ErrorV6 = error; }; int GetNetID () const { return m_NetID; }; void SetNetID (int netID) { m_NetID = netID; }; - bool DecryptTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const; + bool DecryptTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data); + bool DecryptTunnelShortRequestRecord (const uint8_t * encrypted, uint8_t * data); - void UpdatePort (int port); // called from Daemon - void UpdateAddress (const boost::asio::ip::address& host); // called from SSU or Daemon - void PublishNTCP2Address (int port, bool publish = true); - void UpdateNTCP2Address (bool enable); - void PublishNTCPAddress (bool publish, bool v4only = true); - bool AddIntroducer (const i2p::data::RouterInfo::Introducer& introducer); - void RemoveIntroducer (const boost::asio::ip::udp::endpoint& e); + void UpdatePort (int port); // called from Daemon + void UpdateAddress (const boost::asio::ip::address& host); // called from SSU2 or Daemon + void PublishNTCP2Address (int port, bool publish, bool v4, bool v6, bool ygg); + void PublishSSU2Address (int port, bool publish, bool v4, bool v6); + bool AddSSU2Introducer (const i2p::data::RouterInfo::Introducer& introducer, bool v4); + void RemoveSSU2Introducer (const i2p::data::IdentHash& h, bool v4); + void UpdateSSU2Introducer (const i2p::data::IdentHash& h, bool v4, uint32_t iTag, uint32_t iExp); + void ClearSSU2Introducers (bool v4); bool IsUnreachable () const; - void SetUnreachable (); - void SetReachable (); + void SetUnreachable (bool v4, bool v6); + void SetReachable (bool v4, bool v6); bool IsFloodfill () const { return m_IsFloodfill; }; void SetFloodfill (bool floodfill); void SetFamily (const std::string& family); @@ -96,31 +169,43 @@ namespace i2p void SetShareRatio (int percents); // 0 - 100 bool AcceptsTunnels () const { return m_AcceptsTunnels; }; void SetAcceptsTunnels (bool acceptsTunnels) { m_AcceptsTunnels = acceptsTunnels; }; + int GetCongestionLevel (bool longTerm) const; bool SupportsV6 () const { return m_RouterInfo.IsV6 (); }; bool SupportsV4 () const { return m_RouterInfo.IsV4 (); }; + bool SupportsMesh () const { return m_RouterInfo.IsMesh (); }; void SetSupportsV6 (bool supportsV6); void SetSupportsV4 (bool supportsV4); + void SetSupportsMesh (bool supportsmesh, const boost::asio::ip::address_v6& host); + void SetMTU (int mtu, bool v4); + void SetHidden(bool hide) { m_IsHiddenMode = hide; }; + bool IsHidden() const { return m_IsHiddenMode; }; + bool IsLimitedConnectivity () const { return m_Status == eRouterStatusProxy; }; // TODO: implement other cases + i2p::crypto::NoiseSymmetricState& GetCurrentNoiseState () { return m_CurrentNoiseState; }; - void UpdateNTCPV6Address (const boost::asio::ip::address& host); // called from NTCP session - void UpdateNTCP2V6Address (const boost::asio::ip::address& host); // called from NTCP2 session + void UpdateNTCP2V6Address (const boost::asio::ip::address& host); // called from Daemon. TODO: remove void UpdateStats (); void UpdateTimestamp (uint64_t ts); // in seconds, called from NetDb before publishing - void CleanupDestination (); // garlic destination // implements LocalDestination - std::shared_ptr GetIdentity () const { return m_Keys.GetPublic (); }; - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const; - void Sign (const uint8_t * buf, int len, uint8_t * signature) const { m_Keys.Sign (buf, len, signature); }; - void SetLeaseSetUpdated () {}; + std::shared_ptr GetIdentity () const override{ return m_Keys.GetPublic (); }; + bool Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const override; + void SetLeaseSetUpdated (bool post) override {}; // implements GarlicDestination - std::shared_ptr GetLeaseSet () { return nullptr; }; - std::shared_ptr GetTunnelPool () const; - void HandleI2NPMessage (const uint8_t * buf, size_t len, std::shared_ptr from); + std::shared_ptr GetLeaseSet () override { return nullptr; }; + std::shared_ptr GetTunnelPool () const override; // override GarlicDestination - void ProcessGarlicMessage (std::shared_ptr msg); - void ProcessDeliveryStatusMessage (std::shared_ptr msg); + void ProcessGarlicMessage (std::shared_ptr msg) override; + void ProcessDeliveryStatusMessage (std::shared_ptr msg) override; + void SubmitECIESx25519Key (const uint8_t * key, uint64_t tag) override; + + protected: + + // implements GarlicDestination + void HandleI2NPMessage (const uint8_t * buf, size_t len) override; + bool HandleCloveI2NPMessage (I2NPMessageType typeID, const uint8_t * payload, + size_t len, uint32_t msgID, i2p::garlic::ECIESX25519AEADRatchetSession * from) override; private: @@ -128,25 +213,63 @@ namespace i2p void NewRouterInfo (); void UpdateRouterInfo (); void NewNTCP2Keys (); + void NewSSU2Keys (); + void UpdateNTCP2Keys (); + void UpdateSSU2Keys (); bool Load (); void SaveKeys (); + void Sign (const uint8_t * buf, int len, uint8_t * signature) const { m_Keys.Sign (buf, len, signature); }; + uint16_t SelectRandomPort () const; + void PublishNTCP2Address (std::shared_ptr address, int port, bool publish) const; + bool DecryptECIESTunnelBuildRecord (const uint8_t * encrypted, uint8_t * data, size_t clearTextSize); + void PostGarlicMessage (std::shared_ptr msg); + void PostDeliveryStatusMessage (std::shared_ptr msg); + + void ScheduleInitialPublish (); + void HandleInitialPublishTimer (const boost::system::error_code& ecode); + void SchedulePublish (); + void HandlePublishTimer (const boost::system::error_code& ecode); + void Publish (); + void SchedulePublishResend (); + void HandlePublishResendTimer (const boost::system::error_code& ecode); + void ScheduleCongestionUpdate (); + void HandleCongestionUpdateTimer (const boost::system::error_code& ecode); + void UpdateCongestion (); + void ScheduleCleanupTimer (); + void HandleCleanupTimer (const boost::system::error_code& ecode); + private: - i2p::data::RouterInfo m_RouterInfo; + i2p::data::LocalRouterInfo m_RouterInfo; i2p::data::PrivateKeys m_Keys; - std::shared_ptr m_Decryptor; + std::shared_ptr m_Decryptor, m_TunnelDecryptor; + std::shared_ptr m_ECIESSession; uint64_t m_LastUpdateTime; // in seconds bool m_AcceptsTunnels, m_IsFloodfill; - uint64_t m_StartupTime; // in seconds since epoch + uint64_t m_StartupTime; // monotonic seconds uint64_t m_BandwidthLimit; // allowed bandwidth int m_ShareRatio; - RouterStatus m_Status; - RouterError m_Error; + RouterStatus m_Status, m_StatusV6; + RouterError m_Error, m_ErrorV6; + bool m_Testing, m_TestingV6; int m_NetID; - std::mutex m_GarlicMutex; std::unique_ptr m_NTCP2Keys; - std::unique_ptr m_StaticKeys; + std::unique_ptr m_SSU2Keys; + std::unique_ptr m_NTCP2StaticKeys, m_SSU2StaticKeys; + // for ECIESx25519 + i2p::crypto::NoiseSymmetricState m_InitialNoiseState, m_CurrentNoiseState; + // publish + std::unique_ptr m_Service; + std::unique_ptr m_PublishTimer, m_CongestionUpdateTimer, m_CleanupTimer; + std::unordered_set m_PublishExcluded; + uint32_t m_PublishReplyToken; + bool m_IsHiddenMode; // not publish + mutable std::mutex m_RouterInfoMutex; + std::mt19937 m_Rng; + std::shared_ptr m_SaveBuffer; + std::mutex m_SaveBufferMutex; // TODO: make m_SaveBuffer atomic + std::atomic m_IsSaving; }; extern RouterContext context; diff --git a/libi2pd/RouterInfo.cpp b/libi2pd/RouterInfo.cpp index 6b520943..4af32f57 100644 --- a/libi2pd/RouterInfo.cpp +++ b/libi2pd/RouterInfo.cpp @@ -1,56 +1,96 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include "I2PEndian.h" #include -#include -#include -#if (BOOST_VERSION >= 105300) +#include +#include +#include // for boost::to_lower +#ifndef __cpp_lib_atomic_shared_ptr #include #endif #include "version.h" +#include "util.h" #include "Crypto.h" #include "Base.h" #include "Timestamp.h" #include "Log.h" +#include "Transports.h" #include "NetDb.hpp" #include "RouterContext.h" +#include "CryptoKey.h" #include "RouterInfo.h" namespace i2p { namespace data { + RouterInfo::Buffer::Buffer (const uint8_t * buf, size_t len) + { + if (len > size ()) len = size (); + memcpy (data (), buf, len); + m_BufferLen = len; + } + RouterInfo::RouterInfo (): m_Buffer (nullptr) { - m_Addresses = boost::make_shared(); // create empty list + m_Addresses = AddressesPtr(new Addresses ()); // create empty list } RouterInfo::RouterInfo (const std::string& fullPath): - m_FullPath (fullPath), m_IsUpdated (false), m_IsUnreachable (false), - m_SupportedTransports (0), m_Caps (0) + m_FamilyID (0), m_IsUpdated (false), m_IsUnreachable (false), m_IsFloodfill (false), + m_IsBufferScheduledToDelete (false), m_SupportedTransports (0), + m_ReachableTransports (0), m_PublishedTransports (0), m_Caps (0), m_Version (0), + m_Congestion (eLowCongestion) { - m_Addresses = boost::make_shared(); // create empty list - m_Buffer = new uint8_t[MAX_RI_BUFFER_SIZE]; - ReadFromFile (); + m_Addresses = AddressesPtr(new Addresses ()); // create empty list + m_Buffer = RouterInfo::NewBuffer (); // always RouterInfo's + ReadFromFile (fullPath); } - RouterInfo::RouterInfo (const uint8_t * buf, int len): - m_IsUpdated (true), m_IsUnreachable (false), m_SupportedTransports (0), m_Caps (0) + RouterInfo::RouterInfo (std::shared_ptr&& buf, size_t len): + m_FamilyID (0), m_IsUpdated (true), m_IsUnreachable (false), m_IsFloodfill (false), + m_IsBufferScheduledToDelete (false), m_SupportedTransports (0), m_ReachableTransports (0), m_PublishedTransports (0), + m_Caps (0), m_Version (0), m_Congestion (eLowCongestion) + { + if (len <= MAX_RI_BUFFER_SIZE) + { + m_Addresses = AddressesPtr(new Addresses ()); // create empty list + m_Buffer = buf; + if (m_Buffer) m_Buffer->SetBufferLen (len); + ReadFromBuffer (true); + } + else + { + LogPrint (eLogError, "RouterInfo: Buffer is too long ", len, ". Ignored"); + m_Buffer = nullptr; + m_IsUnreachable = true; + } + } + + RouterInfo::RouterInfo (const uint8_t * buf, size_t len): + RouterInfo (netdb.NewRouterInfoBuffer (buf, len), len) { - m_Addresses = boost::make_shared(); // create empty list - m_Buffer = new uint8_t[MAX_RI_BUFFER_SIZE]; - memcpy (m_Buffer, buf, len); - m_BufferLen = len; - ReadFromBuffer (true); } RouterInfo::~RouterInfo () { - delete[] m_Buffer; } - void RouterInfo::Update (const uint8_t * buf, int len) + bool RouterInfo::Update (const uint8_t * buf, size_t len) { + if (len > MAX_RI_BUFFER_SIZE) + { + LogPrint (eLogWarning, "RouterInfo: Updated buffer is too long ", len, ". Not changed"); + return false; + } // verify signature since we have identity already int l = len - m_RouterIdentity->GetSignatureLen (); if (m_RouterIdentity->Verify (buf, l, buf + l)) @@ -59,26 +99,25 @@ namespace data m_IsUpdated = true; m_IsUnreachable = false; m_SupportedTransports = 0; - m_Caps = 0; + m_ReachableTransports = 0; + m_PublishedTransports = 0; + m_Caps = 0; m_IsFloodfill = false; // don't clean up m_Addresses, it will be replaced in ReadFromStream - m_Properties.clear (); - // copy buffer - if (!m_Buffer) - m_Buffer = new uint8_t[MAX_RI_BUFFER_SIZE]; - memcpy (m_Buffer, buf, len); - m_BufferLen = len; + ClearProperties (); // skip identity size_t identityLen = m_RouterIdentity->GetFullLen (); // read new RI - std::stringstream str (std::string ((char *)m_Buffer + identityLen, m_BufferLen - identityLen)); - ReadFromStream (str); + ReadFromBuffer (buf + identityLen, len - identityLen); + if (!m_IsUnreachable) + UpdateBuffer (buf, len); // save buffer // don't delete buffer until saved to the file } else - { - LogPrint (eLogError, "RouterInfo: signature verification failed"); - m_IsUnreachable = true; - } + { + LogPrint (eLogWarning, "RouterInfo: Updated signature verification failed. Not changed"); + return false; + } + return true; } void RouterInfo::SetRouterIdentity (std::shared_ptr identity) @@ -87,34 +126,35 @@ namespace data m_Timestamp = i2p::util::GetMillisecondsSinceEpoch (); } - bool RouterInfo::LoadFile () + bool RouterInfo::LoadFile (const std::string& fullPath) { - std::ifstream s(m_FullPath, std::ifstream::binary); + std::ifstream s(fullPath, std::ifstream::binary); if (s.is_open ()) { s.seekg (0,std::ios::end); - m_BufferLen = s.tellg (); - if (m_BufferLen < 40 || m_BufferLen > MAX_RI_BUFFER_SIZE) + size_t bufferLen = s.tellg (); + if (bufferLen < 40 || bufferLen > MAX_RI_BUFFER_SIZE) { - LogPrint(eLogError, "RouterInfo: File", m_FullPath, " is malformed"); + LogPrint(eLogError, "RouterInfo: File ", fullPath, " is malformed"); return false; } s.seekg(0, std::ios::beg); if (!m_Buffer) - m_Buffer = new uint8_t[MAX_RI_BUFFER_SIZE]; - s.read((char *)m_Buffer, m_BufferLen); + m_Buffer = NewBuffer (); + s.read((char *)m_Buffer->data (), bufferLen); + m_Buffer->SetBufferLen (bufferLen); } else { - LogPrint (eLogError, "RouterInfo: Can't open file ", m_FullPath); + LogPrint (eLogError, "RouterInfo: Can't open file ", fullPath); return false; } return true; } - void RouterInfo::ReadFromFile () + void RouterInfo::ReadFromFile (const std::string& fullPath) { - if (LoadFile ()) + if (LoadFile (fullPath)) ReadFromBuffer (false); else m_IsUnreachable = true; @@ -122,11 +162,17 @@ namespace data void RouterInfo::ReadFromBuffer (bool verifySignature) { - m_RouterIdentity = std::make_shared(m_Buffer, m_BufferLen); - size_t identityLen = m_RouterIdentity->GetFullLen (); - if (identityLen >= m_BufferLen) + if (!m_Buffer) { - LogPrint (eLogError, "RouterInfo: identity length ", identityLen, " exceeds buffer size ", m_BufferLen); + m_IsUnreachable = true; + return; + } + size_t bufferLen = m_Buffer->GetBufferLen (); + m_RouterIdentity = NewIdentity (m_Buffer->data (), bufferLen); + size_t identityLen = m_RouterIdentity->GetFullLen (); + if (identityLen >= bufferLen) + { + LogPrint (eLogError, "RouterInfo: Identity length ", identityLen, " exceeds buffer size ", bufferLen); m_IsUnreachable = true; return; } @@ -140,237 +186,346 @@ namespace data return; } // verify signature - int l = m_BufferLen - m_RouterIdentity->GetSignatureLen (); - if (l < 0 || !m_RouterIdentity->Verify ((uint8_t *)m_Buffer, l, (uint8_t *)m_Buffer + l)) + int l = bufferLen - m_RouterIdentity->GetSignatureLen (); + if (l < 0 || !m_RouterIdentity->Verify ((uint8_t *)m_Buffer->data (), l, (uint8_t *)m_Buffer->data () + l)) { - LogPrint (eLogError, "RouterInfo: signature verification failed"); + LogPrint (eLogError, "RouterInfo: Signature verification failed"); m_IsUnreachable = true; return; } - m_RouterIdentity->DropVerifier (); } // parse RI - std::stringstream str; - str.write ((const char *)m_Buffer + identityLen, m_BufferLen - identityLen); - ReadFromStream (str); - if (!str) + if (!ReadFromBuffer (m_Buffer->data () + identityLen, bufferLen - identityLen)) { - LogPrint (eLogError, "RouterInfo: malformed message"); + LogPrint (eLogError, "RouterInfo: Malformed message"); m_IsUnreachable = true; - } - + } } - void RouterInfo::ReadFromStream (std::istream& s) + bool RouterInfo::ReadFromBuffer (const uint8_t * buf, size_t len) { - s.read ((char *)&m_Timestamp, sizeof (m_Timestamp)); - m_Timestamp = be64toh (m_Timestamp); + if (len < 9) return false; + m_Caps = 0; m_Congestion = eLowCongestion; + m_Timestamp = bufbe64toh (buf); + size_t offset = 8; // timestamp // read addresses - auto addresses = boost::make_shared(); - uint8_t numAddresses; - s.read ((char *)&numAddresses, sizeof (numAddresses)); if (!s) return; - bool introducers = false; + auto addresses = NewAddresses (); + uint8_t numAddresses = buf[offset]; offset++; for (int i = 0; i < numAddresses; i++) { + if (offset + 9 > len) return false; // 1 byte cost + 8 bytes date uint8_t supportedTransports = 0; - auto address = std::make_shared

(); - s.read ((char *)&address->cost, sizeof (address->cost)); - s.read ((char *)&address->date, sizeof (address->date)); - bool isNTCP2Only = false; - char transportStyle[6]; - auto transportStyleLen = ReadString (transportStyle, 6, s) - 1; - if (!strncmp (transportStyle, "NTCP", 4)) // NTCP or NTCP2 + auto address = NewAddress (); + offset++; // cost, ignore + address->date = bufbe64toh (buf + offset); offset += 8; // date + bool isHost = false, isStaticKey = false, isV2 = false, isIntroKey = false; + auto transportStyle = ExtractString (buf + offset, len - offset); offset += transportStyle.length () + 1; + if (!transportStyle.compare (0, 4, "NTCP")) // NTCP or NTCP2 + address->transportStyle = eTransportNTCP2; + else if (!transportStyle.compare (0, 3, "SSU")) // SSU or SSU2 { - address->transportStyle = eTransportNTCP; - if (transportStyleLen > 4 && transportStyle[4] == '2') isNTCP2Only= true; - } - else if (!strcmp (transportStyle, "SSU")) - { - address->transportStyle = eTransportSSU; + address->transportStyle = eTransportSSU2; address->ssu.reset (new SSUExt ()); address->ssu->mtu = 0; } else address->transportStyle = eTransportUnknown; + address->caps = 0; address->port = 0; - uint16_t size, r = 0; - s.read ((char *)&size, sizeof (size)); if (!s) return; - size = be16toh (size); + if (offset + 2 > len) return false; + uint16_t size = bufbe16toh (buf + offset); offset += 2; // size + if (offset + size >= len) return false; + if (address->transportStyle == eTransportUnknown) + { + // skip unknown address + offset += size; + continue; + } + size_t r = 0; while (r < size) { - char key[255], value[255]; - r += ReadString (key, 255, s); - s.seekg (1, std::ios_base::cur); r++; // = - r += ReadString (value, 255, s); - s.seekg (1, std::ios_base::cur); r++; // ; - if (!s) return; - if (!strcmp (key, "host")) + auto [key, value, sz] = ExtractParam (buf + offset, len - offset); + r += sz; offset += sz; + if (key.empty ()) continue; + if (key == "host") { boost::system::error_code ecode; - address->host = boost::asio::ip::address::from_string (value, ecode); - if (!ecode) + address->host = boost::asio::ip::make_address (value, ecode); + if (!ecode && !address->host.is_unspecified ()) { -#if BOOST_VERSION >= 104900 - if (!address->host.is_unspecified ()) // check if address is valid -#else - address->host.to_string (ecode); - if (!ecode) -#endif - { - // add supported protocol - if (address->host.is_v4 ()) - supportedTransports |= (address->transportStyle == eTransportNTCP) ? eNTCPV4 : eSSUV4; - else - supportedTransports |= (address->transportStyle == eTransportNTCP) ? eNTCPV6 : eSSUV6; - } + if (!i2p::transport::transports.IsInReservedRange (address->host) || + i2p::util::net::IsYggdrasilAddress (address->host)) + isHost = true; + else + // we consider such address as invalid + address->transportStyle = eTransportUnknown; } } - else if (!strcmp (key, "port")) - address->port = boost::lexical_cast(value); - else if (!strcmp (key, "mtu")) + else if (key == "port") + { + auto res = std::from_chars(value.data(), value.data() + value.size(), address->port); + if (res.ec != std::errc()) + LogPrint (eLogWarning, "RouterInfo: 'port' conversion error: ", std::make_error_code (res.ec).message ()); + } + else if (key == "mtu") { if (address->ssu) - address->ssu->mtu = boost::lexical_cast(value); + { + auto res = std::from_chars(value.data(), value.data() + value.size(), address->ssu->mtu); + if (res.ec != std::errc()) + LogPrint (eLogWarning, "RouterInfo: 'mtu' conversion error: ", std::make_error_code (res.ec).message ()); + } else - LogPrint (eLogWarning, "RouterInfo: Unexpected field 'mtu' for NTCP"); + LogPrint (eLogWarning, "RouterInfo: Unexpected field 'mtu' for NTCP2"); } - else if (!strcmp (key, "key")) + else if (key == "caps") + address->caps = ExtractAddressCaps (value); + else if (key == "s") // ntcp2 or ssu2 static key { - if (address->ssu) - Base64ToByteStream (value, strlen (value), address->ssu->key, 32); + if (Base64ToByteStream (value, address->s, 32) == 32 && + !(address->s[31] & 0x80)) // check if x25519 public key + isStaticKey = true; else - LogPrint (eLogWarning, "RouterInfo: Unexpected field 'key' for NTCP"); + address->transportStyle = eTransportUnknown; // invalid address } - else if (!strcmp (key, "caps")) - ExtractCaps (value); - else if (!strcmp (key, "s")) // ntcp2 static key + else if (key == "i") // ntcp2 iv or ssu2 intro { - if (!address->ntcp2) address->ntcp2.reset (new NTCP2Ext ()); - supportedTransports |= (address->host.is_v4 ()) ? eNTCP2V4 : eNTCP2V6; - Base64ToByteStream (value, strlen (value), address->ntcp2->staticKey, 32); - } - else if (!strcmp (key, "i")) // ntcp2 iv + if (address->IsNTCP2 ()) + { + if (Base64ToByteStream (value, address->i, 16) == 16) + address->published = true; // presence of "i" means "published" NTCP2 + else + address->transportStyle = eTransportUnknown; // invalid address + } + else if (address->IsSSU2 ()) + { + if (Base64ToByteStream (value, address->i, 32) == 32) + isIntroKey = true; + else + address->transportStyle = eTransportUnknown; // invalid address + } + } + else if (key == "v") { - if (!address->ntcp2) address->ntcp2.reset (new NTCP2Ext ()); - supportedTransports |= (address->host.is_v4 ()) ? eNTCP2V4 : eNTCP2V6; - Base64ToByteStream (value, strlen (value), address->ntcp2->iv, 16); - address->ntcp2->isPublished = true; // presence if "i" means "published" - } + if (value == "2") + isV2 = true; + else + { + LogPrint (eLogWarning, "RouterInfo: Unexpected value ", value, " for v"); + address->transportStyle = eTransportUnknown; // invalid address + } + } else if (key[0] == 'i') { // introducers - introducers = true; - size_t l = strlen(key); - unsigned char index = key[l-1] - '0'; // TODO: - key[l-1] = 0; + if (!address->ssu) + { + LogPrint (eLogError, "RouterInfo: Introducer is presented for non-SSU address. Skipped"); + continue; + } + unsigned char index = key[key.length () - 1] - '0'; // TODO: if (index > 9) { LogPrint (eLogError, "RouterInfo: Unexpected introducer's index ", index, " skipped"); - if (s) continue; else return; + continue; } if (index >= address->ssu->introducers.size ()) - address->ssu->introducers.resize (index + 1); - Introducer& introducer = address->ssu->introducers.at (index); - if (!strcmp (key, "ihost")) { - boost::system::error_code ecode; - introducer.iHost = boost::asio::ip::address::from_string (value, ecode); + if (address->ssu->introducers.empty ()) // first time + address->ssu->introducers.reserve (3); + address->ssu->introducers.resize (index + 1); + } + Introducer& introducer = address->ssu->introducers.at (index); + auto key1 = key.substr(0, key.length () - 1); + if (key1 == "itag") + { + auto res = std::from_chars(value.data(), value.data() + value.size(), introducer.iTag); + if (res.ec != std::errc()) + LogPrint (eLogWarning, "RouterInfo: 'itag' conversion error: ", std::make_error_code (res.ec).message ()); + } + else if (key1 == "ih") + Base64ToByteStream (value, introducer.iH, 32); + else if (key1 == "iexp") + { + auto res = std::from_chars(value.data(), value.data() + value.size(), introducer.iExp); + if (res.ec != std::errc()) + LogPrint (eLogWarning, "RouterInfo: 'iexp' conversion error: ", std::make_error_code (res.ec).message ()); } - else if (!strcmp (key, "iport")) - introducer.iPort = boost::lexical_cast(value); - else if (!strcmp (key, "itag")) - introducer.iTag = boost::lexical_cast(value); - else if (!strcmp (key, "ikey")) - Base64ToByteStream (value, strlen (value), introducer.iKey, 32); - else if (!strcmp (key, "iexp")) - introducer.iExp = boost::lexical_cast(value); } - if (!s) return; - } - if (introducers) supportedTransports |= eSSUV4; // in case if host is not presented - if (isNTCP2Only && address->ntcp2) address->ntcp2->isNTCP2Only = true; - if (supportedTransports) + } + if (address->transportStyle == eTransportNTCP2) { - addresses->push_back(address); + if (isStaticKey) + { + if (isHost && address->port) + { + if (address->host.is_v6 ()) + supportedTransports |= (i2p::util::net::IsYggdrasilAddress (address->host) ? eNTCP2V6Mesh : eNTCP2V6); + else + supportedTransports |= eNTCP2V4; + m_PublishedTransports |= supportedTransports; + } + else + { + address->published = false; + if (address->caps) + { + if (address->caps & AddressCaps::eV4) supportedTransports |= eNTCP2V4; + if (address->caps & AddressCaps::eV6) supportedTransports |= eNTCP2V6; + } + else + supportedTransports |= eNTCP2V4; // most likely, since we don't have host + } + } + } + else if (address->transportStyle == eTransportSSU2 && isV2 && isStaticKey && isIntroKey) + { + if (address->IsV4 ()) supportedTransports |= eSSU2V4; + if (address->IsV6 ()) supportedTransports |= eSSU2V6; + if (isHost && address->port) + { + if (address->host.is_v4 ()) m_PublishedTransports |= eSSU2V4; + if (address->host.is_v6 ()) m_PublishedTransports |= eSSU2V6; + address->published = true; + } + else if (address->ssu && !address->ssu->introducers.empty ()) + { + // exclude invalid introducers + uint32_t ts = i2p::util::GetSecondsSinceEpoch (); + UpdateIntroducers (address, ts); + if (!address->ssu->introducers.empty ()) // still has something + m_ReachableTransports |= supportedTransports; + } + } + if (supportedTransports) + { + if (!(m_SupportedTransports & supportedTransports)) // avoid duplicates + { + for (uint8_t i = 0; i < eNumTransports; i++) + if ((1 << i) & supportedTransports) + (*addresses)[i] = address; + } m_SupportedTransports |= supportedTransports; } } -#if (BOOST_VERSION >= 105300) + m_ReachableTransports |= m_PublishedTransports; + // update addresses +#ifdef __cpp_lib_atomic_shared_ptr + m_Addresses = addresses; +#else boost::atomic_store (&m_Addresses, addresses); -#else - m_Addresses = addresses; // race condition #endif // read peers - uint8_t numPeers; - s.read ((char *)&numPeers, sizeof (numPeers)); if (!s) return; - s.seekg (numPeers*32, std::ios_base::cur); // TODO: read peers + if (offset + 1 > len) return false; + uint8_t numPeers = buf[offset]; offset++; // num peers + offset += numPeers*32; // TODO: read peers // read properties - uint16_t size, r = 0; - s.read ((char *)&size, sizeof (size)); if (!s) return; - size = be16toh (size); + if (offset + 2 > len) return false; + m_Version = 0; + bool isNetId = false; + std::string family; + uint16_t size = bufbe16toh (buf + offset); offset += 2; // size + if (offset + size > len) return false; + size_t r = 0; while (r < size) { - char key[255], value[255]; - r += ReadString (key, 255, s); - s.seekg (1, std::ios_base::cur); r++; // = - r += ReadString (value, 255, s); - s.seekg (1, std::ios_base::cur); r++; // ; - if (!s) return; - m_Properties[key] = value; + auto [key, value, sz] = ExtractParam (buf + offset, len - offset); + r += sz; offset += sz; + if (key.empty ()) continue; + SetProperty (key, value); // extract caps - if (!strcmp (key, "caps")) + if (key == "caps") + { ExtractCaps (value); - // check netId - else if (!strcmp (key, ROUTER_INFO_PROPERTY_NETID) && atoi (value) != i2p::context.GetNetID ()) + m_IsFloodfill = IsDeclaredFloodfill (); + } + // extract version + else if (key == ROUTER_INFO_PROPERTY_VERSION) { - LogPrint (eLogError, "RouterInfo: Unexpected ", ROUTER_INFO_PROPERTY_NETID, "=", value); - m_IsUnreachable = true; - } - // family - else if (!strcmp (key, ROUTER_INFO_PROPERTY_FAMILY)) - { - m_Family = value; - boost::to_lower (m_Family); - } - else if (!strcmp (key, ROUTER_INFO_PROPERTY_FAMILY_SIG)) - { - if (!netdb.GetFamilies ().VerifyFamily (m_Family, GetIdentHash (), value)) + m_Version = 0; + for (auto ch: value) { - LogPrint (eLogWarning, "RouterInfo: family signature verification failed"); - m_Family.clear (); + if (ch >= '0' && ch <= '9') + { + m_Version *= 10; + m_Version += (ch - '0'); + } + } + if (m_Version < NETDB_MIN_PEER_TEST_VERSION && (m_SupportedTransports & (eSSU2V4 | eSSU2V6))) + { + auto addresses = GetAddresses (); + if (addresses) + { + if ((*addresses)[eSSU2V4Idx]) (*addresses)[eSSU2V4Idx]->caps &= ~eSSUTesting; + if ((*addresses)[eSSU2V6Idx]) (*addresses)[eSSU2V6Idx]->caps &= ~eSSUTesting; + } + } + } + // check netId + else if (key == ROUTER_INFO_PROPERTY_NETID) + { + isNetId = true; + int netID; + auto res = std::from_chars(value.data(), value.data() + value.size(), netID); + if (res.ec != std::errc() || netID != i2p::context.GetNetID ()) + { + LogPrint (eLogError, "RouterInfo: Unexpected ", ROUTER_INFO_PROPERTY_NETID, "=", value); + m_IsUnreachable = true; } } - - if (!s) return; + // family + else if (key == ROUTER_INFO_PROPERTY_FAMILY) + { + family = value; + boost::to_lower (family); + } + else if (key == ROUTER_INFO_PROPERTY_FAMILY_SIG) + { + if (netdb.GetFamilies ().VerifyFamily (family, GetIdentHash (), value)) // TODO + m_FamilyID = netdb.GetFamilies ().GetFamilyID (family); + else + { + LogPrint (eLogWarning, "RouterInfo: Family ", family, " signature verification failed"); + SetUnreachable (true); + } + } } - if (!m_SupportedTransports || !m_Addresses->size() || (UsesIntroducer () && !introducers)) + if (!m_SupportedTransports || !isNetId || !m_Version) SetUnreachable (true); + + return true; + } + + bool RouterInfo::IsFamily (FamilyID famid) const + { + return m_FamilyID == famid; } - bool RouterInfo::IsFamily(const std::string & fam) const { - return m_Family == fam; - } - - void RouterInfo::ExtractCaps (const char * value) + void RouterInfo::ExtractCaps (std::string_view value) { - const char * cap = value; - while (*cap) + for (auto cap: value) { - switch (*cap) + switch (cap) { case CAPS_FLAG_FLOODFILL: m_Caps |= Caps::eFloodfill; break; - case CAPS_FLAG_HIGH_BANDWIDTH1: - case CAPS_FLAG_HIGH_BANDWIDTH2: - case CAPS_FLAG_HIGH_BANDWIDTH3: + case CAPS_FLAG_LOW_BANDWIDTH1: + case CAPS_FLAG_LOW_BANDWIDTH2: + case CAPS_FLAG_LOW_BANDWIDTH3: + case CAPS_FLAG_LOW_BANDWIDTH4: + m_BandwidthCap = cap; + break; + case CAPS_FLAG_HIGH_BANDWIDTH: m_Caps |= Caps::eHighBandwidth; + m_BandwidthCap = cap; break; case CAPS_FLAG_EXTRA_BANDWIDTH1: case CAPS_FLAG_EXTRA_BANDWIDTH2: m_Caps |= Caps::eExtraBandwidth | Caps::eHighBandwidth; + m_BandwidthCap = cap; break; case CAPS_FLAG_HIDDEN: m_Caps |= Caps::eHidden; @@ -381,104 +536,866 @@ namespace data case CAPS_FLAG_UNREACHABLE: m_Caps |= Caps::eUnreachable; break; - case CAPS_FLAG_SSU_TESTING: - m_Caps |= Caps::eSSUTesting; + case CAPS_FLAG_MEDIUM_CONGESTION: + m_Congestion = eMediumCongestion; break; - case CAPS_FLAG_SSU_INTRODUCER: - m_Caps |= Caps::eSSUIntroducer; + case CAPS_FLAG_HIGH_CONGESTION: + m_Congestion = eHighCongestion; + break; + case CAPS_FLAG_REJECT_ALL_CONGESTION: + m_Congestion = eRejectAll; + break; + default: ; + } + } + } + + uint8_t RouterInfo::ExtractAddressCaps (std::string_view value) const + { + uint8_t caps = 0; + for (auto cap: value) + { + switch (cap) + { + case CAPS_FLAG_V4: + caps |= AddressCaps::eV4; + break; + case CAPS_FLAG_V6: + caps |= AddressCaps::eV6; + break; + case CAPS_FLAG_SSU2_TESTING: + caps |= AddressCaps::eSSUTesting; + break; + case CAPS_FLAG_SSU2_INTRODUCER: + caps |= AddressCaps::eSSUIntroducer; break; default: ; } - cap++; + } + return caps; + } + + void RouterInfo::UpdateIntroducers (std::shared_ptr
address, uint64_t ts) + { + if (!address || !address->ssu) return; + int numValid = 0; + for (auto& it: address->ssu->introducers) + { + if (it.iTag && ts < it.iExp && !it.iH.IsZero ()) + numValid++; + else + it.iTag = 0; + } + if (!numValid) + address->ssu->introducers.resize (0); + } + + bool RouterInfo::IsNewer (const uint8_t * buf, size_t len) const + { + if (!m_RouterIdentity) return false; + size_t size = m_RouterIdentity->GetFullLen (); + if (size + 8 > len) return false; + return bufbe64toh (buf + size) > m_Timestamp; + } + + const uint8_t * RouterInfo::LoadBuffer (const std::string& fullPath) + { + if (!m_Buffer) + { + if (LoadFile (fullPath)) + LogPrint (eLogDebug, "RouterInfo: Buffer for ", GetIdentHashAbbreviation (GetIdentHash ()), " loaded from file"); + else + return nullptr; + } + return m_Buffer->data (); + } + + bool RouterInfo::SaveToFile (const std::string& fullPath, std::shared_ptr buf) + { + if (!buf) return false; + std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out); + if (!f.is_open ()) + { + LogPrint (eLogError, "RouterInfo: Can't save to ", fullPath); + return false; + } + f.write ((char *)buf->data (), buf->GetBufferLen ()); + return true; + } + + bool RouterInfo::SaveToFile (const std::string& fullPath) + { + if (m_IsUnreachable) return false; // don't save bad router + if (!m_Buffer) + { + LogPrint (eLogWarning, "RouterInfo: Can't save, m_Buffer == NULL"); + return false; + } + return SaveToFile (fullPath, m_Buffer); + } + + std::string_view RouterInfo::ExtractString (const uint8_t * buf, size_t len) const + { + uint8_t l = buf[0]; + if (l > len) + { + LogPrint (eLogWarning, "RouterInfo: String length ", (int)l, " exceeds buffer size ", len); + l = len; + } + return { (const char *)(buf + 1), l }; + } + + std::tuple RouterInfo::ExtractParam (const uint8_t * buf, size_t len) const + { + auto key = ExtractString (buf, len); + size_t offset = key.length () + 1; + if (offset >= len) return { std::string_view(), std::string_view(), len }; + if (buf[offset] != '=') + { + LogPrint (eLogWarning, "RouterInfo: Unexpected character ", buf[offset], " instead '=' after ", key); + key = std::string_view(); + } + offset++; + if (offset >= len) return { key, std::string_view(), len }; + auto value = ExtractString (buf + offset, len - offset); + offset += value.length () + 1; + if (offset >= len) return { key, std::string_view(), len }; + if (buf[offset] != ';') + { + LogPrint (eLogWarning, "RouterInfo: Unexpected character ", buf[offset], " instead ';' after ", value); + value = std::string_view(); + } + offset++; + return { key, value, offset }; + } + + void RouterInfo::AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv,int port, uint8_t caps) + { + auto addr = std::make_shared
(); + addr->port = port; + addr->transportStyle = eTransportNTCP2; + addr->caps = caps; + addr->date = 0; + addr->published = false; + memcpy (addr->s, staticKey, 32); + memcpy (addr->i, iv, 16); + if (addr->IsV4 ()) + { + m_SupportedTransports |= eNTCP2V4; + (*GetAddresses ())[eNTCP2V4Idx] = addr; + } + if (addr->IsV6 ()) + { + m_SupportedTransports |= eNTCP2V6; + (*GetAddresses ())[eNTCP2V6Idx] = addr; } } - void RouterInfo::UpdateCapsProperty () + void RouterInfo::AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv, + const boost::asio::ip::address& host, int port) + { + auto addr = std::make_shared
(); + addr->host = host; + addr->port = port; + addr->transportStyle = eTransportNTCP2; + addr->date = 0; + addr->published = true; + memcpy (addr->s, staticKey, 32); + memcpy (addr->i, iv, 16); + addr->caps = 0; + if (host.is_unspecified ()) + { + if (host.is_v4 ()) addr->caps |= eV4; + if (host.is_v6 ()) addr->caps |= eV6; + } + auto addresses = GetAddresses (); + if (addr->IsV4 ()) + { + m_SupportedTransports |= eNTCP2V4; + m_ReachableTransports |= eNTCP2V4; + (*addresses)[eNTCP2V4Idx] = addr; + } + if (addr->IsV6 ()) + { + if (i2p::util::net::IsYggdrasilAddress (addr->host)) + { + m_SupportedTransports |= eNTCP2V6Mesh; + m_ReachableTransports |= eNTCP2V6Mesh; + (*addresses)[eNTCP2V6MeshIdx] = addr; + } + else + { + m_SupportedTransports |= eNTCP2V6; + m_ReachableTransports |= eNTCP2V6; + (*addresses)[eNTCP2V6Idx] = addr; + } + } + } + + void RouterInfo::RemoveNTCP2Address (bool v4) + { + auto addresses = GetAddresses (); + if (v4) + { + if ((*addresses)[eNTCP2V6Idx]) + (*addresses)[eNTCP2V6Idx]->caps &= ~AddressCaps::eV4; + (*addresses)[eNTCP2V4Idx].reset (); + } + else + { + if ((*addresses)[eNTCP2V4Idx]) + (*addresses)[eNTCP2V4Idx]->caps &= ~AddressCaps::eV6; + (*addresses)[eNTCP2V6Idx].reset (); + } + UpdateSupportedTransports (); + } + + void RouterInfo::AddSSU2Address (const uint8_t * staticKey, const uint8_t * introKey, int port, uint8_t caps) + { + auto addr = std::make_shared
(); + addr->transportStyle = eTransportSSU2; + addr->port = port; + addr->caps = caps; + addr->date = 0; + addr->ssu.reset (new SSUExt ()); + addr->ssu->mtu = 0; + memcpy (addr->s, staticKey, 32); + memcpy (addr->i, introKey, 32); + auto addresses = GetAddresses (); + if (addr->IsV4 ()) + { + m_SupportedTransports |= eSSU2V4; + (*addresses)[eSSU2V4Idx] = addr; + } + if (addr->IsV6 ()) + { + m_SupportedTransports |= eSSU2V6; + (*addresses)[eSSU2V6Idx] = addr; + } + } + + void RouterInfo::AddSSU2Address (const uint8_t * staticKey, const uint8_t * introKey, + const boost::asio::ip::address& host, int port) + { + auto addr = std::make_shared
(); + addr->transportStyle = eTransportSSU2; + addr->host = host; + addr->port = port; + addr->published = true; + addr->date = 0; + addr->ssu.reset (new SSUExt ()); + addr->ssu->mtu = 0; + memcpy (addr->s, staticKey, 32); + memcpy (addr->i, introKey, 32); + if (!host.is_unspecified ()) + addr->caps = i2p::data::RouterInfo::eSSUTesting | i2p::data::RouterInfo::eSSUIntroducer; // BC; + else + { + addr->caps = 0; + if (host.is_v4 ()) addr->caps |= eV4; + if (host.is_v6 ()) addr->caps |= eV6; + } + auto addresses = GetAddresses (); + if (addr->IsV4 ()) + { + m_SupportedTransports |= eSSU2V4; + m_ReachableTransports |= eSSU2V4; + (*addresses)[eSSU2V4Idx] = addr; + } + if (addr->IsV6 ()) + { + m_SupportedTransports |= eSSU2V6; + m_ReachableTransports |= eSSU2V6; + (*addresses)[eSSU2V6Idx] = addr; + } + } + + void RouterInfo::RemoveSSU2Address (bool v4) + { + auto addresses = GetAddresses (); + if (v4) + { + if ((*addresses)[eSSU2V6Idx]) + (*addresses)[eSSU2V6Idx]->caps &= ~AddressCaps::eV4; + (*addresses)[eSSU2V4Idx].reset (); + } + else + { + if ((*addresses)[eSSU2V4Idx]) + (*addresses)[eSSU2V4Idx]->caps &= ~AddressCaps::eV6; + (*addresses)[eSSU2V6Idx].reset (); + } + UpdateSupportedTransports (); + } + + bool RouterInfo::IsNTCP2 (bool v4only) const + { + if (v4only) + return m_SupportedTransports & eNTCP2V4; + else + return m_SupportedTransports & (eNTCP2V4 | eNTCP2V6); + } + + + void RouterInfo::EnableV6 () + { + if (!IsV6 ()) + { + uint8_t addressCaps = AddressCaps::eV6; + if (IsV4 ()) addressCaps |= AddressCaps::eV4; + SetUnreachableAddressesTransportCaps (addressCaps); + UpdateSupportedTransports (); + } + } + + void RouterInfo::EnableV4 () + { + if (!IsV4 ()) + { + uint8_t addressCaps = AddressCaps::eV4; + if (IsV6 ()) addressCaps |= AddressCaps::eV6; + SetUnreachableAddressesTransportCaps (addressCaps); + UpdateSupportedTransports (); + } + } + + + void RouterInfo::DisableV6 () + { + if (IsV6 ()) + { + auto addresses = GetAddresses (); + if ((*addresses)[eNTCP2V6Idx]) + { + if ((*addresses)[eNTCP2V6Idx]->IsV4 () && (*addresses)[eNTCP2V4Idx]) + (*addresses)[eNTCP2V4Idx]->caps &= ~AddressCaps::eV6; + (*addresses)[eNTCP2V6Idx].reset (); + } + if ((*addresses)[eSSU2V6Idx]) + { + if ((*addresses)[eSSU2V6Idx]->IsV4 () && (*addresses)[eSSU2V4Idx]) + (*addresses)[eSSU2V4Idx]->caps &= ~AddressCaps::eV6; + (*addresses)[eSSU2V6Idx].reset (); + } + UpdateSupportedTransports (); + } + } + + void RouterInfo::DisableV4 () + { + if (IsV4 ()) + { + auto addresses = GetAddresses (); + if ((*addresses)[eNTCP2V4Idx]) + { + if ((*addresses)[eNTCP2V4Idx]->IsV6 () && (*addresses)[eNTCP2V6Idx]) + (*addresses)[eNTCP2V6Idx]->caps &= ~AddressCaps::eV4; + (*addresses)[eNTCP2V4Idx].reset (); + } + if ((*addresses)[eSSU2V4Idx]) + { + if ((*addresses)[eSSU2V4Idx]->IsV6 () && (*addresses)[eSSU2V6Idx]) + (*addresses)[eSSU2V6Idx]->caps &= ~AddressCaps::eV4; + (*addresses)[eSSU2V4Idx].reset (); + } + UpdateSupportedTransports (); + } + } + + void RouterInfo::EnableMesh () + { + if (!IsMesh ()) + { + m_SupportedTransports |= eNTCP2V6Mesh; + m_ReachableTransports |= eNTCP2V6Mesh; + } + } + + void RouterInfo::DisableMesh () + { + if (IsMesh ()) + { + m_SupportedTransports &= ~eNTCP2V6Mesh; + m_ReachableTransports &= ~eNTCP2V6Mesh; + (*GetAddresses ())[eNTCP2V6MeshIdx].reset (); + } + } + + std::shared_ptr RouterInfo::GetSSU2V4Address () const + { + return (*GetAddresses ())[eSSU2V4Idx]; + } + + std::shared_ptr RouterInfo::GetSSU2V6Address () const + { + return (*GetAddresses ())[eSSU2V6Idx]; + } + + std::shared_ptr RouterInfo::GetSSU2Address (bool v4) const + { + if (v4) + { + if (m_SupportedTransports & eSSU2V4) + return GetSSU2V4Address (); + } + else + { + if (m_SupportedTransports & eSSU2V6) + return GetSSU2V6Address (); + } + return nullptr; + } + + RouterInfo::AddressesPtr RouterInfo::GetAddresses () const + { +#ifdef __cpp_lib_atomic_shared_ptr + return m_Addresses; +#else + return boost::atomic_load (&m_Addresses); +#endif + } + + template + std::shared_ptr RouterInfo::GetAddress (Filter filter) const + { + // TODO: make it more generic using comparator +#ifdef __cpp_lib_atomic_shared_ptr + AddressesPtr addresses = m_Addresses; +#else + auto addresses = boost::atomic_load (&m_Addresses); +#endif + for (const auto& address : *addresses) + if (address && filter (address)) return address; + + return nullptr; + } + + std::shared_ptr RouterInfo::GetNTCP2V4Address () const + { + return (*GetAddresses ())[eNTCP2V4Idx]; + } + + std::shared_ptr RouterInfo::GetNTCP2V6Address () const + { + return (*GetAddresses ())[eNTCP2V6Idx]; + } + + std::shared_ptr RouterInfo::GetPublishedNTCP2V4Address () const + { + auto addr = (*GetAddresses ())[eNTCP2V4Idx]; + if (addr && addr->IsPublishedNTCP2 ()) return addr; + return nullptr; + } + + std::shared_ptr RouterInfo::GetPublishedNTCP2V6Address () const + { + auto addr = (*GetAddresses ())[eNTCP2V6Idx]; + if (addr && addr->IsPublishedNTCP2 ()) return addr; + return nullptr; + } + + std::shared_ptr RouterInfo::GetYggdrasilAddress () const + { + return (*GetAddresses ())[eNTCP2V6MeshIdx]; + } + + std::shared_ptr RouterInfo::GetProfile () const + { + auto profile = m_Profile; + if (!profile) + { + profile = GetRouterProfile (GetIdentHash ()); + m_Profile = profile; + } + return profile; + } + + void RouterInfo::Encrypt (const uint8_t * data, uint8_t * encrypted) const + { + auto encryptor = m_RouterIdentity->CreateEncryptor (nullptr); + if (encryptor) + encryptor->Encrypt (data, encrypted); + } + + bool RouterInfo::IsEligibleFloodfill () const + { + // floodfill must have published ipv4 or reachable ipv4 and published ipv6 + // >= 0.9.59 and not DSA + return m_Version >= NETDB_MIN_FLOODFILL_VERSION && (IsPublished (true) || + (IsReachableBy (eNTCP2V4 | eSSU2V4) && IsPublished (false))) && + GetIdentity ()->GetSigningKeyType () != SIGNING_KEY_TYPE_DSA_SHA1; + } + + bool RouterInfo::IsPublished (bool v4) const + { + if (m_Caps & (eUnreachable | eHidden)) return false; // if router sets U or H we assume that all addresses are not published + return IsPublishedOn (v4 ? (eNTCP2V4 | eSSU2V4) : (eNTCP2V6 | eSSU2V6)); + } + + bool RouterInfo::IsPublishedOn (CompatibleTransports transports) const + { + return m_PublishedTransports & transports; + } + + bool RouterInfo::IsNAT2NATOnly (const RouterInfo& other) const + { + return !(m_PublishedTransports & other.m_SupportedTransports) && + !(other.m_PublishedTransports & m_SupportedTransports); + } + + bool RouterInfo::IsSSU2PeerTesting (bool v4) const + { + if (!(m_SupportedTransports & (v4 ? eSSU2V4 : eSSU2V6))) return false; + auto addr = (*GetAddresses ())[v4 ? eSSU2V4Idx : eSSU2V6Idx]; + return addr && addr->IsPeerTesting () && addr->IsReachableSSU (); + } + + bool RouterInfo::IsSSU2Introducer (bool v4) const + { + if (!(m_SupportedTransports & (v4 ? eSSU2V4 : eSSU2V6))) return false; + auto addr = (*GetAddresses ())[v4 ? eSSU2V4Idx : eSSU2V6Idx]; + return addr && addr->IsIntroducer () && !addr->host.is_unspecified () && addr->port; + } + + void RouterInfo::SetUnreachableAddressesTransportCaps (uint8_t transports) + { + for (auto& addr: *GetAddresses ()) + { + if (addr && !addr->published) + { + addr->caps &= ~(eV4 | eV6); + addr->caps |= transports; + } + } + } + + void RouterInfo::UpdateSupportedTransports () + { + m_SupportedTransports = 0; + m_ReachableTransports = 0; + for (const auto& addr: *GetAddresses ()) + { + if (!addr) continue; + uint8_t transports = 0; + switch (addr->transportStyle) + { + case eTransportNTCP2: + if (addr->IsV4 ()) transports |= eNTCP2V4; + if (addr->IsV6 ()) + transports |= (i2p::util::net::IsYggdrasilAddress (addr->host) ? eNTCP2V6Mesh : eNTCP2V6); + if (addr->IsPublishedNTCP2 ()) + m_ReachableTransports |= transports; + break; + case eTransportSSU2: + if (addr->IsV4 ()) transports |= eSSU2V4; + if (addr->IsV6 ()) transports |= eSSU2V6; + if (addr->IsReachableSSU ()) + m_ReachableTransports |= transports; + break; + default: ; + } + m_SupportedTransports |= transports; + } + } + + void RouterInfo::UpdateIntroducers (uint64_t ts) + { + if (ts*1000 < m_Timestamp + INTRODUCER_UPDATE_INTERVAL) return; + if (m_ReachableTransports & eSSU2V4) + { + auto addr = (*GetAddresses ())[eSSU2V4Idx]; + if (addr && addr->UsesIntroducer ()) + { + UpdateIntroducers (addr, ts); + if (!addr->UsesIntroducer ()) // no more valid introducers + m_ReachableTransports &= ~eSSU2V4; + } + } + if (m_ReachableTransports & eSSU2V6) + { + auto addr = (*GetAddresses ())[eSSU2V6Idx]; + if (addr && addr->UsesIntroducer ()) + { + UpdateIntroducers (addr, ts); + if (!addr->UsesIntroducer ()) // no more valid introducers + m_ReachableTransports &= ~eSSU2V6; + } + } + } + + void RouterInfo::UpdateBuffer (const uint8_t * buf, size_t len) + { + m_IsBufferScheduledToDelete = false; + if (!m_Buffer) + m_Buffer = NewBuffer (); + if (len > m_Buffer->size ()) len = m_Buffer->size (); + memcpy (m_Buffer->data (), buf, len); + m_Buffer->SetBufferLen (len); + } + + std::shared_ptr RouterInfo::CopyBuffer () const + { + if (!m_Buffer) return nullptr; + return netdb.NewRouterInfoBuffer (*m_Buffer); + } + + std::shared_ptr RouterInfo::NewBuffer () const + { + return netdb.NewRouterInfoBuffer (); + } + + std::shared_ptr RouterInfo::NewAddress () const + { + return netdb.NewRouterInfoAddress (); + } + + RouterInfo::AddressesPtr RouterInfo::NewAddresses () const + { + return netdb.NewRouterInfoAddresses (); + } + + std::shared_ptr RouterInfo::NewIdentity (const uint8_t * buf, size_t len) const + { + return netdb.NewIdentity (buf, len); + } + + void RouterInfo::RefreshTimestamp () + { + m_Timestamp = i2p::util::GetMillisecondsSinceEpoch (); + } + + bool RouterInfo::IsHighCongestion (bool highBandwidth) const + { + switch (m_Congestion) + { + case eLowCongestion: + return false; + break; + case eMediumCongestion: + return highBandwidth; + break; + case eHighCongestion: + return i2p::util::GetMillisecondsSinceEpoch () < m_Timestamp + HIGH_CONGESTION_INTERVAL*1000LL; + break; + case eRejectAll: + return true; + break; + default: + return false; + } + } + + std::string RouterInfo::GetTransportName (SupportedTransports tr) + { + switch (tr) + { + case eNTCP2V4: return "NTCP2V4"; + case eNTCP2V6: return "NTCP2V6"; + case eSSU2V4: return "SSU2V4"; + case eSSU2V6: return "SSU2V6"; + case eNTCP2V6Mesh: return "Mesh"; + default: return ""; + } + } + + void LocalRouterInfo::CreateBuffer (const PrivateKeys& privateKeys) + { + RefreshTimestamp (); + std::stringstream s; + uint8_t ident[1024]; + auto identLen = privateKeys.GetPublic ()->ToBuffer (ident, 1024); + auto signatureLen = privateKeys.GetPublic ()->GetSignatureLen (); + s.write ((char *)ident, identLen); + WriteToStream (s); + size_t len = s.str ().size (); + if (len + signatureLen < MAX_RI_BUFFER_SIZE) + { + UpdateBuffer ((const uint8_t *)s.str ().c_str (), len); + // signature + privateKeys.Sign (GetBuffer (), len, GetBufferPointer (len)); + SetBufferLen (len + signatureLen); + } + else + LogPrint (eLogError, "RouterInfo: Our RouterInfo is too long ", len + signatureLen); + } + + void LocalRouterInfo::UpdateCaps (uint8_t caps) + { + SetCaps (caps); + UpdateCapsProperty (); + } + + void LocalRouterInfo::UpdateCapsProperty () { std::string caps; - if (m_Caps & eFloodfill) + uint8_t c = GetCaps (); + if (c & eFloodfill) { - if (m_Caps & eExtraBandwidth) caps += (m_Caps & eHighBandwidth) ? + if (c & eExtraBandwidth) caps += (c & eHighBandwidth) ? CAPS_FLAG_EXTRA_BANDWIDTH2 : // 'X' CAPS_FLAG_EXTRA_BANDWIDTH1; // 'P' else - caps += CAPS_FLAG_HIGH_BANDWIDTH3; // 'O' + caps += CAPS_FLAG_HIGH_BANDWIDTH; // 'O' caps += CAPS_FLAG_FLOODFILL; // floodfill } else { - if (m_Caps & eExtraBandwidth) - caps += (m_Caps & eHighBandwidth) ? CAPS_FLAG_EXTRA_BANDWIDTH2 /* 'X' */ : CAPS_FLAG_EXTRA_BANDWIDTH1; /*'P' */ + if (c & eExtraBandwidth) + caps += (c & eHighBandwidth) ? CAPS_FLAG_EXTRA_BANDWIDTH2 /* 'X' */ : CAPS_FLAG_EXTRA_BANDWIDTH1; /*'P' */ else - caps += (m_Caps & eHighBandwidth) ? CAPS_FLAG_HIGH_BANDWIDTH3 /* 'O' */: CAPS_FLAG_LOW_BANDWIDTH2 /* 'L' */; // bandwidth + caps += (c & eHighBandwidth) ? CAPS_FLAG_HIGH_BANDWIDTH /* 'O' */: CAPS_FLAG_LOW_BANDWIDTH2 /* 'L' */; // bandwidth } - if (m_Caps & eHidden) caps += CAPS_FLAG_HIDDEN; // hidden - if (m_Caps & eReachable) caps += CAPS_FLAG_REACHABLE; // reachable - if (m_Caps & eUnreachable) caps += CAPS_FLAG_UNREACHABLE; // unreachable + if (c & eHidden) caps += CAPS_FLAG_HIDDEN; // hidden + if (c & eReachable) caps += CAPS_FLAG_REACHABLE; // reachable + if (c & eUnreachable) caps += CAPS_FLAG_UNREACHABLE; // unreachable + switch (GetCongestion ()) + { + case eMediumCongestion: + caps += CAPS_FLAG_MEDIUM_CONGESTION; + break; + case eHighCongestion: + caps += CAPS_FLAG_HIGH_CONGESTION; + break; + case eRejectAll: + caps += CAPS_FLAG_REJECT_ALL_CONGESTION; + break; + default: ; + }; + SetProperty ("caps", caps); } - void RouterInfo::WriteToStream (std::ostream& s) const + bool LocalRouterInfo::UpdateCongestion (Congestion c) { - uint64_t ts = htobe64 (m_Timestamp); - s.write ((const char *)&ts, sizeof (ts)); - - // addresses - uint8_t numAddresses = m_Addresses->size (); - s.write ((char *)&numAddresses, sizeof (numAddresses)); - for (const auto& addr_ptr : *m_Addresses) + if (c != GetCongestion ()) { + SetCongestion (c); + UpdateCapsProperty (); + return true; + } + return false; + } + + void LocalRouterInfo::WriteToStream (std::ostream& s) const + { + auto addresses = GetAddresses (); + if (!addresses) return; + + uint64_t ts = htobe64 (GetTimestamp ()); + s.write ((const char *)&ts, sizeof (ts)); + // addresses + uint8_t numAddresses = 0; + for (size_t idx = 0; idx < addresses->size(); idx++) + { + auto addr_ptr = (*addresses)[idx]; + if (!addr_ptr) continue; + if (idx == eNTCP2V6Idx && addr_ptr == (*addresses)[eNTCP2V4Idx]) continue; + if (idx == eSSU2V6Idx && addr_ptr == (*addresses)[eSSU2V4Idx]) continue; + numAddresses++; + } + s.write ((char *)&numAddresses, sizeof (numAddresses)); + for (size_t idx = 0; idx < addresses->size(); idx++) + { + auto addr_ptr = (*addresses)[idx]; + if (!addr_ptr) continue; + if (idx == eNTCP2V6Idx && addr_ptr == (*addresses)[eNTCP2V4Idx]) continue; + if (idx == eSSU2V6Idx && addr_ptr == (*addresses)[eSSU2V4Idx]) continue; const Address& address = *addr_ptr; - s.write ((const char *)&address.cost, sizeof (address.cost)); + // calculate cost + uint8_t cost = 0x7f; + if (address.transportStyle == eTransportNTCP2) + cost = address.published ? COST_NTCP2_PUBLISHED : COST_NTCP2_NON_PUBLISHED; + else if (address.transportStyle == eTransportSSU2) + cost = address.published ? COST_SSU2_DIRECT : COST_SSU2_NON_PUBLISHED; + else + continue; // skip unknown address + s.write ((const char *)&cost, sizeof (cost)); s.write ((const char *)&address.date, sizeof (address.date)); std::stringstream properties; - if (address.transportStyle == eTransportNTCP) - WriteString (address.IsNTCP2 () ? "NTCP2" : "NTCP", s); - else if (address.transportStyle == eTransportSSU) + bool isPublished = address.published && !address.host.is_unspecified () && address.port; + if (address.transportStyle == eTransportNTCP2) { - WriteString ("SSU", s); + WriteString ("NTCP2", s); + // caps + if (!isPublished) + { + WriteString ("caps", properties); + properties << '='; + std::string caps; + if (address.IsV4 ()) caps += CAPS_FLAG_V4; + if (address.IsV6 () || address.host.is_v6 ()) caps += CAPS_FLAG_V6; // we set 6 for unspecified ipv6 + if (caps.empty ()) caps += CAPS_FLAG_V4; + WriteString (caps, properties); + properties << ';'; + } + } + else if (address.transportStyle == eTransportSSU2) + { + WriteString ("SSU2", s); // caps - WriteString ("caps", properties); - properties << '='; std::string caps; - if (IsPeerTesting ()) caps += CAPS_FLAG_SSU_TESTING; - if (IsIntroducer ()) caps += CAPS_FLAG_SSU_INTRODUCER; - WriteString (caps, properties); - properties << ';'; + if (isPublished) + { + if (address.IsPeerTesting ()) caps += CAPS_FLAG_SSU2_TESTING; + if (address.IsIntroducer ()) caps += CAPS_FLAG_SSU2_INTRODUCER; + } + else + { + if (address.IsV4 ()) caps += CAPS_FLAG_V4; + if (address.IsV6 () || address.host.is_v6 ()) caps += CAPS_FLAG_V6; // we set 6 for unspecified ipv6 + if (caps.empty ()) caps += CAPS_FLAG_V4; + } + if (!caps.empty ()) + { + WriteString ("caps", properties); + properties << '='; + WriteString (caps, properties); + properties << ';'; + } } else WriteString ("", s); - if (!address.IsNTCP2 () || address.IsPublishedNTCP2 ()) + if (isPublished && !address.host.is_unspecified ()) { WriteString ("host", properties); properties << '='; WriteString (address.host.to_string (), properties); properties << ';'; } - if (address.transportStyle == eTransportSSU) + if ((address.IsNTCP2 () && isPublished) || address.IsSSU2 ()) + { + // publish i for NTCP2 or SSU2 + WriteString ("i", properties); properties << '='; + size_t len = address.IsSSU2 () ? 32 : 16; + WriteString (address.i.ToBase64 (len), properties); properties << ';'; + } + if (address.transportStyle == eTransportSSU2) { // write introducers if any - if (address.ssu->introducers.size () > 0) + if (address.ssu && !address.ssu->introducers.empty()) { int i = 0; for (const auto& introducer: address.ssu->introducers) { - WriteString ("ihost" + boost::lexical_cast(i), properties); - properties << '='; - WriteString (introducer.iHost.to_string (), properties); - properties << ';'; + if (!introducer.iTag) continue; + if (introducer.iExp) // expiration is specified + { + WriteString ("iexp" + std::to_string(i), properties); + properties << '='; + WriteString (std::to_string(introducer.iExp), properties); + properties << ';'; + } i++; } i = 0; for (const auto& introducer: address.ssu->introducers) { - WriteString ("ikey" + boost::lexical_cast(i), properties); + if (!introducer.iTag) continue; + WriteString ("ih" + std::to_string(i), properties); properties << '='; - char value[64]; - size_t l = ByteStreamToBase64 (introducer.iKey, 32, value, 64); - value[l] = 0; + auto value = ByteStreamToBase64 (introducer.iH, 32); WriteString (value, properties); properties << ';'; i++; @@ -486,74 +1403,42 @@ namespace data i = 0; for (const auto& introducer: address.ssu->introducers) { - WriteString ("iport" + boost::lexical_cast(i), properties); + if (!introducer.iTag) continue; + WriteString ("itag" + std::to_string(i), properties); properties << '='; - WriteString (boost::lexical_cast(introducer.iPort), properties); + WriteString (std::to_string(introducer.iTag), properties); properties << ';'; i++; } - i = 0; - for (const auto& introducer: address.ssu->introducers) - { - WriteString ("itag" + boost::lexical_cast(i), properties); - properties << '='; - WriteString (boost::lexical_cast(introducer.iTag), properties); - properties << ';'; - i++; - } - i = 0; - for (const auto& introducer: address.ssu->introducers) - { - if (introducer.iExp) // expiration is specified - { - WriteString ("iexp" + boost::lexical_cast(i), properties); - properties << '='; - WriteString (boost::lexical_cast(introducer.iExp), properties); - properties << ';'; - } - i++; - } } - // write intro key - WriteString ("key", properties); - properties << '='; - char value[64]; - size_t l = ByteStreamToBase64 (address.ssu->key, 32, value, 64); - value[l] = 0; - WriteString (value, properties); - properties << ';'; + } + + if (address.transportStyle == eTransportSSU2) + { // write mtu - if (address.ssu->mtu) + if (address.ssu && address.ssu->mtu) { WriteString ("mtu", properties); properties << '='; - WriteString (boost::lexical_cast(address.ssu->mtu), properties); + WriteString (std::to_string(address.ssu->mtu), properties); properties << ';'; } } - - if (address.IsPublishedNTCP2 ()) - { - // publish i for NTCP2 - WriteString ("i", properties); properties << '='; - WriteString (address.ntcp2->iv.ToBase64 (), properties); properties << ';'; - } - - if (!address.IsNTCP2 () || address.IsPublishedNTCP2 ()) + if (isPublished && address.port) { WriteString ("port", properties); properties << '='; - WriteString (boost::lexical_cast(address.port), properties); + WriteString (std::to_string(address.port), properties); properties << ';'; - } - if (address.IsNTCP2 ()) + } + if (address.IsNTCP2 () || address.IsSSU2 ()) { - // publish s and v for NTCP2 + // publish s and v for NTCP2 or SSU2 WriteString ("s", properties); properties << '='; - WriteString (address.ntcp2->staticKey.ToBase64 (), properties); properties << ';'; + WriteString (address.s.ToBase64 (), properties); properties << ';'; WriteString ("v", properties); properties << '='; WriteString ("2", properties); properties << ';'; - } + } uint16_t size = htobe16 (properties.str ().size ()); s.write ((char *)&size, sizeof (size)); @@ -578,189 +1463,19 @@ namespace data s.write (properties.str ().c_str (), properties.str ().size ()); } - bool RouterInfo::IsNewer (const uint8_t * buf, size_t len) const + void LocalRouterInfo::SetProperty (std::string_view key, std::string_view value) { - if (!m_RouterIdentity) return false; - size_t size = m_RouterIdentity->GetFullLen (); - if (size + 8 > len) return false; - return bufbe64toh (buf + size) > m_Timestamp; + auto [it, inserted] = m_Properties.emplace (key, value); + if (!inserted) + it->second = value; } - const uint8_t * RouterInfo::LoadBuffer () - { - if (!m_Buffer) - { - if (LoadFile ()) - LogPrint (eLogDebug, "RouterInfo: Buffer for ", GetIdentHashAbbreviation (GetIdentHash ()), " loaded from file"); - } - return m_Buffer; - } - - void RouterInfo::CreateBuffer (const PrivateKeys& privateKeys) - { - m_Timestamp = i2p::util::GetMillisecondsSinceEpoch (); // refresh timstamp - std::stringstream s; - uint8_t ident[1024]; - auto identLen = privateKeys.GetPublic ()->ToBuffer (ident, 1024); - s.write ((char *)ident, identLen); - WriteToStream (s); - m_BufferLen = s.str ().size (); - if (!m_Buffer) - m_Buffer = new uint8_t[MAX_RI_BUFFER_SIZE]; - memcpy (m_Buffer, s.str ().c_str (), m_BufferLen); - // signature - privateKeys.Sign ((uint8_t *)m_Buffer, m_BufferLen, (uint8_t *)m_Buffer + m_BufferLen); - m_BufferLen += privateKeys.GetPublic ()->GetSignatureLen (); - } - - bool RouterInfo::SaveToFile (const std::string& fullPath) - { - m_FullPath = fullPath; - if (!m_Buffer) { - LogPrint (eLogError, "RouterInfo: Can't save, m_Buffer == NULL"); - return false; - } - std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out); - if (!f.is_open ()) { - LogPrint(eLogError, "RouterInfo: Can't save to ", fullPath); - return false; - } - f.write ((char *)m_Buffer, m_BufferLen); - return true; - } - - size_t RouterInfo::ReadString (char * str, size_t len, std::istream& s) const - { - uint8_t l; - s.read ((char *)&l, 1); - if (l < len) - { - s.read (str, l); - if (!s) l = 0; // failed, return empty string - str[l] = 0; - } - else - { - LogPrint (eLogWarning, "RouterInfo: string length ", (int)l, " exceeds buffer size ", len); - s.seekg (l, std::ios::cur); // skip - str[0] = 0; - } - return l+1; - } - - void RouterInfo::WriteString (const std::string& str, std::ostream& s) const - { - uint8_t len = str.size (); - s.write ((char *)&len, 1); - s.write (str.c_str (), len); - } - - void RouterInfo::AddNTCPAddress (const char * host, int port) - { - auto addr = std::make_shared
(); - addr->host = boost::asio::ip::address::from_string (host); - addr->port = port; - addr->transportStyle = eTransportNTCP; - addr->cost = 6; - addr->date = 0; - for (const auto& it: *m_Addresses) // don't insert same address twice - if (*it == *addr) return; - m_SupportedTransports |= addr->host.is_v6 () ? eNTCPV6 : eNTCPV4; - m_Addresses->push_front(std::move(addr)); // always make NTCP first - } - - void RouterInfo::AddSSUAddress (const char * host, int port, const uint8_t * key, int mtu) - { - auto addr = std::make_shared
(); - addr->host = boost::asio::ip::address::from_string (host); - addr->port = port; - addr->transportStyle = eTransportSSU; - addr->cost = 10; // NTCP should have priority over SSU - addr->date = 0; - addr->ssu.reset (new SSUExt ()); - addr->ssu->mtu = mtu; - memcpy (addr->ssu->key, key, 32); - for (const auto& it: *m_Addresses) // don't insert same address twice - if (*it == *addr) return; - m_SupportedTransports |= addr->host.is_v6 () ? eSSUV6 : eSSUV4; - m_Addresses->push_back(std::move(addr)); - - m_Caps |= eSSUTesting; - m_Caps |= eSSUIntroducer; - } - - void RouterInfo::AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv, const boost::asio::ip::address& host, int port) - { - auto addr = std::make_shared
(); - addr->host = host; - addr->port = port; - addr->transportStyle = eTransportNTCP; - addr->cost = port ? 3 : 14; // override from RouterContext::PublishNTCP2Address - addr->date = 0; - addr->ntcp2.reset (new NTCP2Ext ()); - addr->ntcp2->isNTCP2Only = true; // NTCP2 only address - if (port) addr->ntcp2->isPublished = true; - memcpy (addr->ntcp2->staticKey, staticKey, 32); - memcpy (addr->ntcp2->iv, iv, 16); - m_Addresses->push_back(std::move(addr)); - } - - bool RouterInfo::AddIntroducer (const Introducer& introducer) - { - for (auto& addr : *m_Addresses) - { - if (addr->transportStyle == eTransportSSU && addr->host.is_v4 ()) - { - for (auto& intro: addr->ssu->introducers) - if (intro.iTag == introducer.iTag) return false; // already presented - addr->ssu->introducers.push_back (introducer); - return true; - } - } - return false; - } - - bool RouterInfo::RemoveIntroducer (const boost::asio::ip::udp::endpoint& e) - { - for (auto& addr: *m_Addresses) - { - if (addr->transportStyle == eTransportSSU && addr->host.is_v4 ()) - { - for (auto it = addr->ssu->introducers.begin (); it != addr->ssu->introducers.end (); ++it) - if ( boost::asio::ip::udp::endpoint (it->iHost, it->iPort) == e) - { - addr->ssu->introducers.erase (it); - return true; - } - } - } - return false; - } - - void RouterInfo::SetCaps (uint8_t caps) - { - m_Caps = caps; - UpdateCapsProperty (); - } - - void RouterInfo::SetCaps (const char * caps) - { - SetProperty ("caps", caps); - m_Caps = 0; - ExtractCaps (caps); - } - - void RouterInfo::SetProperty (const std::string& key, const std::string& value) - { - m_Properties[key] = value; - } - - void RouterInfo::DeleteProperty (const std::string& key) + void LocalRouterInfo::DeleteProperty (const std::string& key) { m_Properties.erase (key); } - std::string RouterInfo::GetProperty (const std::string& key) const + std::string LocalRouterInfo::GetProperty (const std::string& key) const { auto it = m_Properties.find (key); if (it != m_Properties.end ()) @@ -768,154 +1483,98 @@ namespace data return ""; } - bool RouterInfo::IsNTCP (bool v4only) const + void LocalRouterInfo::UpdateFloodfillProperty (bool floodfill) { - if (v4only) - return m_SupportedTransports & eNTCPV4; + if (floodfill) + { + UpdateCaps (GetCaps () | i2p::data::RouterInfo::eFloodfill); + SetFloodfill (); + } else - return m_SupportedTransports & (eNTCPV4 | eNTCPV6); - } - - bool RouterInfo::IsSSU (bool v4only) const - { - if (v4only) - return m_SupportedTransports & eSSUV4; - else - return m_SupportedTransports & (eSSUV4 | eSSUV6); - } - - bool RouterInfo::IsNTCP2 (bool v4only) const - { - if (v4only) - return m_SupportedTransports & eNTCP2V4; - else - return m_SupportedTransports & (eNTCP2V4 | eNTCP2V6); - } - - bool RouterInfo::IsV6 () const - { - return m_SupportedTransports & (eNTCPV6 | eSSUV6); - } - - bool RouterInfo::IsV4 () const - { - return m_SupportedTransports & (eNTCPV4 | eSSUV4 | eNTCP2V4); - } - - void RouterInfo::EnableV6 () - { - if (!IsV6 ()) - m_SupportedTransports |= eNTCPV6 | eSSUV6 | eNTCP2V6; - } - - void RouterInfo::EnableV4 () - { - if (!IsV4 ()) - m_SupportedTransports |= eNTCPV4 | eSSUV4 | eNTCP2V4; - } - - - void RouterInfo::DisableV6 () - { - if (IsV6 ()) - { - m_SupportedTransports &= ~(eNTCPV6 | eSSUV6 | eNTCP2V6); - for (auto it = m_Addresses->begin (); it != m_Addresses->end ();) - { - auto addr = *it; - if (addr->host.is_v6 ()) - it = m_Addresses->erase (it); - else - ++it; - } - } - } - - void RouterInfo::DisableV4 () - { - if (IsV4 ()) - { - m_SupportedTransports &= ~(eNTCPV4 | eSSUV4 | eNTCP2V4); - for (auto it = m_Addresses->begin (); it != m_Addresses->end ();) - { - auto addr = *it; - if (addr->host.is_v4 ()) - it = m_Addresses->erase (it); - else - ++it; - } - } - } - - - bool RouterInfo::UsesIntroducer () const - { - return m_Caps & Caps::eUnreachable; // non-reachable - } - - std::shared_ptr RouterInfo::GetNTCPAddress (bool v4only) const - { - return GetAddress ( - [v4only](std::shared_ptr address)->bool - { - return (address->transportStyle == eTransportNTCP) && !address->IsNTCP2Only () && (!v4only || address->host.is_v4 ()); - }); - } - - std::shared_ptr RouterInfo::GetSSUAddress (bool v4only) const - { - return GetAddress ( - [v4only](std::shared_ptr address)->bool - { - return (address->transportStyle == eTransportSSU) && (!v4only || address->host.is_v4 ()); - }); - } - - std::shared_ptr RouterInfo::GetSSUV6Address () const - { - return GetAddress ( - [](std::shared_ptr address)->bool - { - return (address->transportStyle == eTransportSSU) && address->host.is_v6 (); - }); - } - - template - std::shared_ptr RouterInfo::GetAddress (Filter filter) const - { - // TODO: make it more generic using comparator -#if (BOOST_VERSION >= 105300) - auto addresses = boost::atomic_load (&m_Addresses); -#else - auto addresses = m_Addresses; -#endif - for (const auto& address : *addresses) - if (filter (address)) return address; + { + UpdateCaps (GetCaps () & ~i2p::data::RouterInfo::eFloodfill); + ResetFloodfill (); + } + } - return nullptr; + void LocalRouterInfo::WriteString (const std::string& str, std::ostream& s) const + { + uint8_t len = str.size (); + s.write ((char *)&len, 1); + s.write (str.c_str (), len); } - std::shared_ptr RouterInfo::GetNTCP2Address (bool publishedOnly, bool v4only) const + std::shared_ptr LocalRouterInfo::NewBuffer () const { - return GetAddress ( - [publishedOnly, v4only](std::shared_ptr address)->bool - { - return address->IsNTCP2 () && (!publishedOnly || address->IsPublishedNTCP2 ()) && (!v4only || address->host.is_v4 ()); - }); + return std::make_shared (); } - std::shared_ptr RouterInfo::GetProfile () const + std::shared_ptr LocalRouterInfo::NewAddress () const { - if (!m_Profile) - m_Profile = GetRouterProfile (GetIdentHash ()); - return m_Profile; + return std::make_shared
(); } - void RouterInfo::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const + RouterInfo::AddressesPtr LocalRouterInfo::NewAddresses () const { - auto encryptor = m_RouterIdentity->CreateEncryptor (nullptr); - if (encryptor) - encryptor->Encrypt (data, encrypted, ctx, true); + return RouterInfo::AddressesPtr(new RouterInfo::Addresses ()); } + + std::shared_ptr LocalRouterInfo::NewIdentity (const uint8_t * buf, size_t len) const + { + return std::make_shared (buf, len); + } + + bool LocalRouterInfo::AddSSU2Introducer (const Introducer& introducer, bool v4) + { + auto addresses = GetAddresses (); + if (!addresses) return false; + auto addr = (*addresses)[v4 ? eSSU2V4Idx : eSSU2V6Idx]; + if (addr) + { + for (auto& intro: addr->ssu->introducers) + if (intro.iTag == introducer.iTag) return false; // already presented + addr->ssu->introducers.push_back (introducer); + SetReachableTransports (GetReachableTransports () | ((addr->IsV4 () ? eSSU2V4 : eSSU2V6))); + return true; + } + return false; + } + + bool LocalRouterInfo::RemoveSSU2Introducer (const IdentHash& h, bool v4) + { + auto addresses = GetAddresses (); + if (!addresses) return false; + auto addr = (*addresses)[v4 ? eSSU2V4Idx : eSSU2V6Idx]; + if (addr) + { + for (auto it = addr->ssu->introducers.begin (); it != addr->ssu->introducers.end (); ++it) + if (h == it->iH) + { + addr->ssu->introducers.erase (it); + if (addr->ssu->introducers.empty ()) + SetReachableTransports (GetReachableTransports () & ~(addr->IsV4 () ? eSSU2V4 : eSSU2V6)); + return true; + } + } + return false; + } + + bool LocalRouterInfo::UpdateSSU2Introducer (const IdentHash& h, bool v4, uint32_t iTag, uint32_t iExp) + { + auto addresses = GetAddresses (); + if (!addresses) return false; + auto addr = (*addresses)[v4 ? eSSU2V4Idx : eSSU2V6Idx]; + if (addr) + { + for (auto& it: addr->ssu->introducers) + if (h == it.iH) + { + it.iTag = iTag; + it.iExp = iExp; + return true; + } + } + return false; + } } } diff --git a/libi2pd/RouterInfo.h b/libi2pd/RouterInfo.h index 084ad8a7..cb3ae499 100644 --- a/libi2pd/RouterInfo.h +++ b/libi2pd/RouterInfo.h @@ -1,16 +1,30 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef ROUTER_INFO_H__ #define ROUTER_INFO_H__ #include #include +#include +#include #include #include -#include +#include #include +#include #include +#ifndef __cpp_lib_atomic_shared_ptr #include +#endif #include "Identity.h" #include "Profiling.h" +#include "Family.h" namespace i2p { @@ -19,6 +33,7 @@ namespace data const char ROUTER_INFO_PROPERTY_LEASESETS[] = "netdb.knownLeaseSets"; const char ROUTER_INFO_PROPERTY_ROUTERS[] = "netdb.knownRouters"; const char ROUTER_INFO_PROPERTY_NETID[] = "netId"; + const char ROUTER_INFO_PROPERTY_VERSION[] = "router.version"; const char ROUTER_INFO_PROPERTY_FAMILY[] = "family"; const char ROUTER_INFO_PROPERTY_FAMILY_SIG[] = "family.sig"; @@ -29,56 +44,98 @@ namespace data /* bandwidth flags */ const char CAPS_FLAG_LOW_BANDWIDTH1 = 'K'; /* < 12 KBps */ const char CAPS_FLAG_LOW_BANDWIDTH2 = 'L'; /* 12-48 KBps */ - const char CAPS_FLAG_HIGH_BANDWIDTH1 = 'M'; /* 48-64 KBps */ - const char CAPS_FLAG_HIGH_BANDWIDTH2 = 'N'; /* 64-128 KBps */ - const char CAPS_FLAG_HIGH_BANDWIDTH3 = 'O'; /* 128-256 KBps */ - const char CAPS_FLAG_EXTRA_BANDWIDTH1 = 'P'; /* 256-2000 KBps */ - const char CAPS_FLAG_EXTRA_BANDWIDTH2 = 'X'; /* > 2000 KBps */ + const char CAPS_FLAG_LOW_BANDWIDTH3 = 'M'; /* 48-64 KBps */ + const char CAPS_FLAG_LOW_BANDWIDTH4 = 'N'; /* 64-128 KBps */ + const char CAPS_FLAG_HIGH_BANDWIDTH = 'O'; /* 128-256 KBps */ + const char CAPS_FLAG_EXTRA_BANDWIDTH1 = 'P'; /* 256-2048 KBps */ + const char CAPS_FLAG_EXTRA_BANDWIDTH2 = 'X'; /* > 2048 KBps */ + // bandwidth limits in kBps + const uint32_t LOW_BANDWIDTH_LIMIT = 48; + const uint32_t HIGH_BANDWIDTH_LIMIT = 256; + const uint32_t EXTRA_BANDWIDTH_LIMIT = 2048; + // congesion flags + const char CAPS_FLAG_MEDIUM_CONGESTION = 'D'; + const char CAPS_FLAG_HIGH_CONGESTION = 'E'; + const char CAPS_FLAG_REJECT_ALL_CONGESTION = 'G'; + + const char CAPS_FLAG_V4 = '4'; + const char CAPS_FLAG_V6 = '6'; + const char CAPS_FLAG_SSU2_TESTING = 'B'; + const char CAPS_FLAG_SSU2_INTRODUCER = 'C'; - const char CAPS_FLAG_SSU_TESTING = 'B'; - const char CAPS_FLAG_SSU_INTRODUCER = 'C'; + const uint8_t COST_NTCP2_PUBLISHED = 3; + const uint8_t COST_NTCP2_NON_PUBLISHED = 14; + const uint8_t COST_SSU2_DIRECT = 8; + const uint8_t COST_SSU2_NON_PUBLISHED = 15; - const int MAX_RI_BUFFER_SIZE = 2048; + const size_t MAX_RI_BUFFER_SIZE = 3072; // if RouterInfo exceeds 3K we consider it as malformed, might extend later + const int HIGH_CONGESTION_INTERVAL = 15*60; // in seconds, 15 minutes + const int INTRODUCER_UPDATE_INTERVAL = 20*60*1000; // in milliseconds, 20 minutes + class RouterInfo: public RoutingDestination { public: - enum SupportedTranports + enum SupportedTransportsIdx { - eNTCPV4 = 0x01, - eNTCPV6 = 0x02, - eSSUV4 = 0x04, - eSSUV6 = 0x08, - eNTCP2V4 = 0x10, - eNTCP2V6 = 0x20 + eNTCP2V4Idx = 0, + eNTCP2V6Idx, + eSSU2V4Idx, + eSSU2V6Idx, + eNTCP2V6MeshIdx, + eNumTransports }; +#define TransportBit(tr) e##tr = (1 << e##tr##Idx) + + enum SupportedTransports + { + TransportBit(NTCP2V4), // 0x01 + TransportBit(NTCP2V6), // 0x02 + TransportBit(SSU2V4), // 0x04 + TransportBit(SSU2V6), // 0x08 + TransportBit(NTCP2V6Mesh), // 0x10 + eAllTransports = 0xFF + }; + typedef uint8_t CompatibleTransports; + enum Caps { eFloodfill = 0x01, eHighBandwidth = 0x02, eExtraBandwidth = 0x04, eReachable = 0x08, - eSSUTesting = 0x10, - eSSUIntroducer = 0x20, - eHidden = 0x40, - eUnreachable = 0x80 + eHidden = 0x10, + eUnreachable = 0x20 + }; + + enum Congestion + { + eLowCongestion = 0, + eMediumCongestion, + eHighCongestion, + eRejectAll + }; + + enum AddressCaps + { + eV4 = 0x01, + eV6 = 0x02, + eSSUTesting = 0x04, + eSSUIntroducer = 0x08 }; enum TransportStyle { eTransportUnknown = 0, - eTransportNTCP, - eTransportSSU + eTransportNTCP2, + eTransportSSU2 }; - typedef Tag<32> IntroKey; // should be castable to MacKey and AESKey struct Introducer { - Introducer (): iExp (0) {}; - boost::asio::ip::address iHost; - int iPort; - IntroKey iKey; + Introducer (): iTag (0), iExp (0) { iH.Fill(0); }; + IdentHash iH; uint32_t iTag; uint32_t iExp; }; @@ -86,37 +143,29 @@ namespace data struct SSUExt { int mtu; - IntroKey key; // intro key for SSU std::vector introducers; }; - struct NTCP2Ext - { - Tag<32> staticKey; - Tag<16> iv; - bool isPublished = false; - bool isNTCP2Only = false; - }; - struct Address { TransportStyle transportStyle; boost::asio::ip::address host; + Tag<32> s, i; // keys, i is first 16 bytes for NTCP2 and 32 bytes intro key for SSU int port; uint64_t date; - uint8_t cost; + uint8_t caps; + bool published = false; std::unique_ptr ssu; // not null for SSU - std::unique_ptr ntcp2; // not null for NTCP2 bool IsCompatible (const boost::asio::ip::address& other) const { - return (host.is_v4 () && other.is_v4 ()) || - (host.is_v6 () && other.is_v6 ()); + return (IsV4 () && other.is_v4 ()) || + (IsV6 () && other.is_v6 ()); } bool operator==(const Address& other) const { - return transportStyle == other.transportStyle && IsNTCP2 () == other.IsNTCP2 () && + return transportStyle == other.transportStyle && host == other.host && port == other.port; } @@ -125,116 +174,237 @@ namespace data return !(*this == other); } - bool IsNTCP2 () const { return (bool)ntcp2; }; - bool IsPublishedNTCP2 () const { return IsNTCP2 () && ntcp2->isPublished; }; - bool IsNTCP2Only () const { return ntcp2 && ntcp2->isNTCP2Only; }; - }; - typedef std::list > Addresses; + bool IsNTCP2 () const { return transportStyle == eTransportNTCP2; }; + bool IsSSU2 () const { return transportStyle == eTransportSSU2; }; + bool IsPublishedNTCP2 () const { return IsNTCP2 () && published; }; + bool IsReachableSSU () const { return (bool)ssu && (published || UsesIntroducer ()); }; + bool UsesIntroducer () const { return (bool)ssu && !ssu->introducers.empty (); }; - RouterInfo (); + bool IsIntroducer () const { return caps & eSSUIntroducer; }; + bool IsPeerTesting () const { return caps & eSSUTesting; }; + + bool IsV4 () const { return (caps & AddressCaps::eV4) || (host.is_v4 () && !host.is_unspecified ()); }; + bool IsV6 () const { return (caps & AddressCaps::eV6) || (host.is_v6 () && !host.is_unspecified ()); }; + }; + + class Buffer: public std::array + { + public: + + Buffer () = default; + Buffer (const uint8_t * buf, size_t len); + Buffer (const Buffer& other): Buffer (other.data (), other.m_BufferLen) {}; + + size_t GetBufferLen () const { return m_BufferLen; }; + void SetBufferLen (size_t len) { m_BufferLen = len; }; + + private: + + size_t m_BufferLen = 0; + }; + + typedef std::array, eNumTransports> Addresses; +#ifdef __cpp_lib_atomic_shared_ptr + typedef std::shared_ptr AddressesPtr; +#else + typedef boost::shared_ptr AddressesPtr; +#endif RouterInfo (const std::string& fullPath); - RouterInfo (const RouterInfo& ) = default; - RouterInfo& operator=(const RouterInfo& ) = default; - RouterInfo (const uint8_t * buf, int len); - ~RouterInfo (); + RouterInfo (const RouterInfo& ) = delete; + RouterInfo& operator=(const RouterInfo& ) = delete; + RouterInfo (std::shared_ptr&& buf, size_t len); + RouterInfo (const uint8_t * buf, size_t len); + virtual ~RouterInfo (); std::shared_ptr GetRouterIdentity () const { return m_RouterIdentity; }; void SetRouterIdentity (std::shared_ptr identity); std::string GetIdentHashBase64 () const { return GetIdentHash ().ToBase64 (); }; uint64_t GetTimestamp () const { return m_Timestamp; }; - Addresses& GetAddresses () { return *m_Addresses; }; // should be called for local RI only, otherwise must return shared_ptr - std::shared_ptr GetNTCPAddress (bool v4only = true) const; - std::shared_ptr GetNTCP2Address (bool publishedOnly, bool v4only = true) const; - std::shared_ptr GetSSUAddress (bool v4only = true) const; - std::shared_ptr GetSSUV6Address () const; + int GetVersion () const { return m_Version; }; + virtual void SetProperty (std::string_view key, std::string_view value) {}; + virtual void ClearProperties () {}; + AddressesPtr GetAddresses () const; // should be called for local RI only, otherwise must return shared_ptr + std::shared_ptr GetNTCP2V4Address () const; + std::shared_ptr GetNTCP2V6Address () const; + std::shared_ptr GetPublishedNTCP2V4Address () const; + std::shared_ptr GetPublishedNTCP2V6Address () const; + std::shared_ptr GetYggdrasilAddress () const; + std::shared_ptr GetSSU2V4Address () const; + std::shared_ptr GetSSU2V6Address () const; + std::shared_ptr GetSSU2Address (bool v4) const; - void AddNTCPAddress (const char * host, int port); - void AddSSUAddress (const char * host, int port, const uint8_t * key, int mtu = 0); - void AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv, const boost::asio::ip::address& host = boost::asio::ip::address(), int port = 0); - bool AddIntroducer (const Introducer& introducer); - bool RemoveIntroducer (const boost::asio::ip::udp::endpoint& e); - void SetProperty (const std::string& key, const std::string& value); // called from RouterContext only - void DeleteProperty (const std::string& key); // called from RouterContext only - std::string GetProperty (const std::string& key) const; // called from RouterContext only - void ClearProperties () { m_Properties.clear (); }; - bool IsFloodfill () const { return m_Caps & Caps::eFloodfill; }; - bool IsReachable () const { return m_Caps & Caps::eReachable; }; - bool IsNTCP (bool v4only = true) const; - bool IsSSU (bool v4only = true) const; + void AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv,int port, uint8_t caps); // non published + void AddNTCP2Address (const uint8_t * staticKey, const uint8_t * iv, + const boost::asio::ip::address& host, int port); // published + void RemoveNTCP2Address (bool v4); + void AddSSU2Address (const uint8_t * staticKey, const uint8_t * introKey, int port, uint8_t caps); // non published + void AddSSU2Address (const uint8_t * staticKey, const uint8_t * introKey, + const boost::asio::ip::address& host, int port); // published + void RemoveSSU2Address (bool v4); + void SetUnreachableAddressesTransportCaps (uint8_t transports); // bitmask of AddressCaps + void UpdateSupportedTransports (); + void UpdateIntroducers (uint64_t ts); // ts in seconds + bool IsFloodfill () const { return m_IsFloodfill; }; + void SetFloodfill () { m_IsFloodfill = true; }; + void ResetFloodfill () { m_IsFloodfill = false; }; + bool IsECIES () const { return m_RouterIdentity->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD; }; bool IsNTCP2 (bool v4only = true) const; - bool IsV6 () const; - bool IsV4 () const; + bool IsNTCP2V6 () const { return m_SupportedTransports & eNTCP2V6; }; + bool IsSSU2V4 () const { return m_SupportedTransports & eSSU2V4; }; + bool IsSSU2V6 () const { return m_SupportedTransports & eSSU2V6; }; + bool IsV6 () const { return m_SupportedTransports & (eNTCP2V6 | eSSU2V6); }; + bool IsV4 () const { return m_SupportedTransports & (eNTCP2V4 | eSSU2V4); }; + bool IsMesh () const { return m_SupportedTransports & eNTCP2V6Mesh; }; void EnableV6 (); void DisableV6 (); void EnableV4 (); void DisableV4 (); + void EnableMesh (); + void DisableMesh (); bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; }; + bool IsReachableFrom (const RouterInfo& other) const { return m_ReachableTransports & other.m_SupportedTransports; }; + bool IsReachableBy (CompatibleTransports transports) const { return m_ReachableTransports & transports; }; + CompatibleTransports GetCompatibleTransports (bool incoming) const { return incoming ? m_ReachableTransports : m_SupportedTransports; }; + CompatibleTransports GetPublishedTransports () const { return m_PublishedTransports; }; bool HasValidAddresses () const { return m_SupportedTransports; }; - bool UsesIntroducer () const; - bool IsIntroducer () const { return m_Caps & eSSUIntroducer; }; - bool IsPeerTesting () const { return m_Caps & eSSUTesting; }; bool IsHidden () const { return m_Caps & eHidden; }; bool IsHighBandwidth () const { return m_Caps & RouterInfo::eHighBandwidth; }; bool IsExtraBandwidth () const { return m_Caps & RouterInfo::eExtraBandwidth; }; + bool IsEligibleFloodfill () const; + bool IsDeclaredFloodfill () const { return m_Caps & RouterInfo::eFloodfill; }; + bool IsPublished (bool v4) const; + bool IsPublishedOn (CompatibleTransports transports) const; + bool IsNAT2NATOnly (const RouterInfo& other) const; // only NAT-to-NAT connection is possible + bool IsSSU2PeerTesting (bool v4) const; + bool IsSSU2Introducer (bool v4) const; + bool IsHighCongestion (bool highBandwidth) const; uint8_t GetCaps () const { return m_Caps; }; - void SetCaps (uint8_t caps); - void SetCaps (const char * caps); + char GetBandwidthCap() const { return m_BandwidthCap; }; + void SetCaps (uint8_t caps) { m_Caps = caps; }; + Congestion GetCongestion () const { return m_Congestion; }; + void SetUnreachable (bool unreachable) { m_IsUnreachable = unreachable; }; bool IsUnreachable () const { return m_IsUnreachable; }; + void ExcludeReachableTransports (CompatibleTransports transports) { m_ReachableTransports &= ~transports; }; - const uint8_t * GetBuffer () const { return m_Buffer; }; - const uint8_t * LoadBuffer (); // load if necessary - int GetBufferLen () const { return m_BufferLen; }; - void CreateBuffer (const PrivateKeys& privateKeys); + const uint8_t * GetBuffer () const { return m_Buffer ? m_Buffer->data () : nullptr; }; + const uint8_t * LoadBuffer (const std::string& fullPath); // load if necessary + size_t GetBufferLen () const { return m_Buffer ? m_Buffer->GetBufferLen () : 0; }; + void DeleteBuffer () { m_Buffer = nullptr; m_IsBufferScheduledToDelete = false; }; + std::shared_ptr GetSharedBuffer () const { return m_Buffer; }; + std::shared_ptr CopyBuffer () const; + void ScheduleBufferToDelete () { m_IsBufferScheduledToDelete = true; }; + void CancelBufferToDelete () { m_IsBufferScheduledToDelete = false; }; + bool IsBufferScheduledToDelete () const { return m_IsBufferScheduledToDelete; }; bool IsUpdated () const { return m_IsUpdated; }; void SetUpdated (bool updated) { m_IsUpdated = updated; }; bool SaveToFile (const std::string& fullPath); - + static bool SaveToFile (const std::string& fullPath, std::shared_ptr buf); + std::shared_ptr GetProfile () const; - void SaveProfile () { if (m_Profile) m_Profile->Save (GetIdentHash ()); }; + void DropProfile () { m_Profile = nullptr; }; + bool HasProfile () const { return (bool)m_Profile; }; - void Update (const uint8_t * buf, int len); - void DeleteBuffer () { delete[] m_Buffer; m_Buffer = nullptr; }; + bool Update (const uint8_t * buf, size_t len); bool IsNewer (const uint8_t * buf, size_t len) const; - /** return true if we are in a router family and the signature is valid */ - bool IsFamily(const std::string & fam) const; + /** return true if we are in a router family and the signature is valid */ + bool IsFamily (FamilyID famid) const; // implements RoutingDestination std::shared_ptr GetIdentity () const { return m_RouterIdentity; }; - void Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const; + void Encrypt (const uint8_t * data, uint8_t * encrypted) const; bool IsDestination () const { return false; }; + protected: + + RouterInfo (); + uint8_t * GetBufferPointer (size_t offset = 0 ) { return m_Buffer->data () + offset; }; + void UpdateBuffer (const uint8_t * buf, size_t len); + void SetBufferLen (size_t len) { if (m_Buffer) m_Buffer->SetBufferLen (len); }; + void RefreshTimestamp (); + CompatibleTransports GetReachableTransports () const { return m_ReachableTransports; }; + void SetReachableTransports (CompatibleTransports transports) { m_ReachableTransports = transports; }; + void SetCongestion (Congestion c) { m_Congestion = c; }; + private: - bool LoadFile (); - void ReadFromFile (); - void ReadFromStream (std::istream& s); + bool LoadFile (const std::string& fullPath); + void ReadFromFile (const std::string& fullPath); + bool ReadFromBuffer (const uint8_t * buf, size_t len); // return false if malformed void ReadFromBuffer (bool verifySignature); - void WriteToStream (std::ostream& s) const; - size_t ReadString (char* str, size_t len, std::istream& s) const; - void WriteString (const std::string& str, std::ostream& s) const; - void ExtractCaps (const char * value); + std::string_view ExtractString (const uint8_t * buf, size_t len) const; + std::tuple ExtractParam (const uint8_t * buf, size_t len) const; + void ExtractCaps (std::string_view value); + uint8_t ExtractAddressCaps (std::string_view value) const; + void UpdateIntroducers (std::shared_ptr
address, uint64_t ts); template std::shared_ptr GetAddress (Filter filter) const; - void UpdateCapsProperty (); + virtual std::shared_ptr NewBuffer () const; + virtual std::shared_ptr
NewAddress () const; + virtual AddressesPtr NewAddresses () const; + virtual std::shared_ptr NewIdentity (const uint8_t * buf, size_t len) const; private: - std::string m_FullPath, m_Family; + FamilyID m_FamilyID; std::shared_ptr m_RouterIdentity; - uint8_t * m_Buffer; - size_t m_BufferLen; - uint64_t m_Timestamp; - boost::shared_ptr m_Addresses; // TODO: use std::shared_ptr and std::atomic_store for gcc >= 4.9 - std::map m_Properties; - bool m_IsUpdated, m_IsUnreachable; - uint8_t m_SupportedTransports, m_Caps; + std::shared_ptr m_Buffer; + uint64_t m_Timestamp; // in milliseconds +#ifdef __cpp_lib_atomic_shared_ptr + std::atomic m_Addresses; +#else + AddressesPtr m_Addresses; +#endif + bool m_IsUpdated, m_IsUnreachable, m_IsFloodfill, m_IsBufferScheduledToDelete; + CompatibleTransports m_SupportedTransports, m_ReachableTransports, m_PublishedTransports; + uint8_t m_Caps; + char m_BandwidthCap; + int m_Version; + Congestion m_Congestion; mutable std::shared_ptr m_Profile; + + public: + + static std::string GetTransportName (SupportedTransports tr); + }; + + class LocalRouterInfo: public RouterInfo + { + public: + + LocalRouterInfo () = default; + void CreateBuffer (const PrivateKeys& privateKeys); + void UpdateCaps (uint8_t caps); + bool UpdateCongestion (Congestion c); // returns true if updated + + void SetProperty (std::string_view key, std::string_view value) override; + void DeleteProperty (const std::string& key); + std::string GetProperty (const std::string& key) const; + void ClearProperties () override { m_Properties.clear (); }; + void UpdateFloodfillProperty (bool floodfill); + + bool AddSSU2Introducer (const Introducer& introducer, bool v4); + bool RemoveSSU2Introducer (const IdentHash& h, bool v4); + bool UpdateSSU2Introducer (const IdentHash& h, bool v4, uint32_t iTag, uint32_t iExp); + + private: + + void WriteToStream (std::ostream& s) const; + void UpdateCapsProperty (); + void WriteString (const std::string& str, std::ostream& s) const; + std::shared_ptr NewBuffer () const override; + std::shared_ptr
NewAddress () const override; + RouterInfo::AddressesPtr NewAddresses () const override; + std::shared_ptr NewIdentity (const uint8_t * buf, size_t len) const override; + + private: + + std::map m_Properties; }; } } diff --git a/libi2pd/SSU.cpp b/libi2pd/SSU.cpp deleted file mode 100644 index daf7e1e9..00000000 --- a/libi2pd/SSU.cpp +++ /dev/null @@ -1,798 +0,0 @@ -#include -#include -#include "Log.h" -#include "Timestamp.h" -#include "RouterContext.h" -#include "NetDb.hpp" -#include "SSU.h" - -namespace i2p -{ -namespace transport -{ - - SSUServer::SSUServer (const boost::asio::ip::address & addr, int port): - m_OnlyV6(true), m_IsRunning(false), - m_Thread (nullptr), m_ThreadV6 (nullptr), m_ReceiversThread (nullptr), - m_ReceiversThreadV6 (nullptr), m_Work (m_Service), m_WorkV6 (m_ServiceV6), - m_ReceiversWork (m_ReceiversService), m_ReceiversWorkV6 (m_ReceiversServiceV6), - m_EndpointV6 (addr, port), m_Socket (m_ReceiversService, m_Endpoint), - m_SocketV6 (m_ReceiversServiceV6), m_IntroducersUpdateTimer (m_Service), - m_PeerTestsCleanupTimer (m_Service), m_TerminationTimer (m_Service), - m_TerminationTimerV6 (m_ServiceV6) - { - OpenSocketV6 (); - } - - SSUServer::SSUServer (int port): - m_OnlyV6(false), m_IsRunning(false), - m_Thread (nullptr), m_ThreadV6 (nullptr), m_ReceiversThread (nullptr), - m_ReceiversThreadV6 (nullptr), m_Work (m_Service), m_WorkV6 (m_ServiceV6), - m_ReceiversWork (m_ReceiversService), m_ReceiversWorkV6 (m_ReceiversServiceV6), - m_Endpoint (boost::asio::ip::udp::v4 (), port), m_EndpointV6 (boost::asio::ip::udp::v6 (), port), - m_Socket (m_ReceiversService), m_SocketV6 (m_ReceiversServiceV6), - m_IntroducersUpdateTimer (m_Service), m_PeerTestsCleanupTimer (m_Service), - m_TerminationTimer (m_Service), m_TerminationTimerV6 (m_ServiceV6) - { - OpenSocket (); - if (context.SupportsV6 ()) - OpenSocketV6 (); - } - - SSUServer::~SSUServer () - { - } - - void SSUServer::OpenSocket () - { - m_Socket.open (boost::asio::ip::udp::v4()); - m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU_SOCKET_RECEIVE_BUFFER_SIZE)); - m_Socket.set_option (boost::asio::socket_base::send_buffer_size (SSU_SOCKET_SEND_BUFFER_SIZE)); - m_Socket.bind (m_Endpoint); - } - - void SSUServer::OpenSocketV6 () - { - m_SocketV6.open (boost::asio::ip::udp::v6()); - m_SocketV6.set_option (boost::asio::ip::v6_only (true)); - m_SocketV6.set_option (boost::asio::socket_base::receive_buffer_size (SSU_SOCKET_RECEIVE_BUFFER_SIZE)); - m_SocketV6.set_option (boost::asio::socket_base::send_buffer_size (SSU_SOCKET_SEND_BUFFER_SIZE)); - m_SocketV6.bind (m_EndpointV6); - } - - void SSUServer::Start () - { - m_IsRunning = true; - if (!m_OnlyV6) - { - m_ReceiversThread = new std::thread (std::bind (&SSUServer::RunReceivers, this)); - m_Thread = new std::thread (std::bind (&SSUServer::Run, this)); - m_ReceiversService.post (std::bind (&SSUServer::Receive, this)); - ScheduleTermination (); - } - if (context.SupportsV6 ()) - { - m_ReceiversThreadV6 = new std::thread (std::bind (&SSUServer::RunReceiversV6, this)); - m_ThreadV6 = new std::thread (std::bind (&SSUServer::RunV6, this)); - m_ReceiversServiceV6.post (std::bind (&SSUServer::ReceiveV6, this)); - ScheduleTerminationV6 (); - } - SchedulePeerTestsCleanupTimer (); - ScheduleIntroducersUpdateTimer (); // wait for 30 seconds and decide if we need introducers - } - - void SSUServer::Stop () - { - DeleteAllSessions (); - m_IsRunning = false; - m_TerminationTimer.cancel (); - m_TerminationTimerV6.cancel (); - m_Service.stop (); - m_Socket.close (); - m_ServiceV6.stop (); - m_SocketV6.close (); - m_ReceiversService.stop (); - m_ReceiversServiceV6.stop (); - if (m_ReceiversThread) - { - m_ReceiversThread->join (); - delete m_ReceiversThread; - m_ReceiversThread = nullptr; - } - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } - if (m_ReceiversThreadV6) - { - m_ReceiversThreadV6->join (); - delete m_ReceiversThreadV6; - m_ReceiversThreadV6 = nullptr; - } - if (m_ThreadV6) - { - m_ThreadV6->join (); - delete m_ThreadV6; - m_ThreadV6 = nullptr; - } - } - - void SSUServer::Run () - { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SSU: server runtime exception: ", ex.what ()); - } - } - } - - void SSUServer::RunV6 () - { - while (m_IsRunning) - { - try - { - m_ServiceV6.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SSU: v6 server runtime exception: ", ex.what ()); - } - } - } - - void SSUServer::RunReceivers () - { - while (m_IsRunning) - { - try - { - m_ReceiversService.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SSU: receivers runtime exception: ", ex.what ()); - } - } - } - - void SSUServer::RunReceiversV6 () - { - while (m_IsRunning) - { - try - { - m_ReceiversServiceV6.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SSU: v6 receivers runtime exception: ", ex.what ()); - } - } - } - - void SSUServer::AddRelay (uint32_t tag, std::shared_ptr relay) - { - m_Relays[tag] = relay; - } - - void SSUServer::RemoveRelay (uint32_t tag) - { - m_Relays.erase (tag); - } - - std::shared_ptr SSUServer::FindRelaySession (uint32_t tag) - { - auto it = m_Relays.find (tag); - if (it != m_Relays.end ()) - { - if (it->second->GetState () == eSessionStateEstablished) - return it->second; - else - m_Relays.erase (it); - } - return nullptr; - } - - void SSUServer::Send (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& to) - { - if (to.protocol () == boost::asio::ip::udp::v4()) - m_Socket.send_to (boost::asio::buffer (buf, len), to); - else - m_SocketV6.send_to (boost::asio::buffer (buf, len), to); - } - - void SSUServer::Receive () - { - SSUPacket * packet = new SSUPacket (); - m_Socket.async_receive_from (boost::asio::buffer (packet->buf, SSU_MTU_V4), packet->from, - std::bind (&SSUServer::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet)); - } - - void SSUServer::ReceiveV6 () - { - SSUPacket * packet = new SSUPacket (); - m_SocketV6.async_receive_from (boost::asio::buffer (packet->buf, SSU_MTU_V6), packet->from, - std::bind (&SSUServer::HandleReceivedFromV6, this, std::placeholders::_1, std::placeholders::_2, packet)); - } - - void SSUServer::HandleReceivedFrom (const boost::system::error_code& ecode, std::size_t bytes_transferred, SSUPacket * packet) - { - if (!ecode) - { - packet->len = bytes_transferred; - std::vector packets; - packets.push_back (packet); - - boost::system::error_code ec; - size_t moreBytes = m_Socket.available(ec); - if (!ec) - { - while (moreBytes && packets.size () < 25) - { - packet = new SSUPacket (); - packet->len = m_Socket.receive_from (boost::asio::buffer (packet->buf, SSU_MTU_V4), packet->from, 0, ec); - if (!ec) - { - packets.push_back (packet); - moreBytes = m_Socket.available(ec); - if (ec) break; - } - else - { - LogPrint (eLogError, "SSU: receive_from error: ", ec.message ()); - delete packet; - break; - } - } - } - - m_Service.post (std::bind (&SSUServer::HandleReceivedPackets, this, packets, &m_Sessions)); - Receive (); - } - else - { - delete packet; - if (ecode != boost::asio::error::operation_aborted) - { - LogPrint (eLogError, "SSU: receive error: ", ecode.message ()); - m_Socket.close (); - OpenSocket (); - Receive (); - } - } - } - - void SSUServer::HandleReceivedFromV6 (const boost::system::error_code& ecode, std::size_t bytes_transferred, SSUPacket * packet) - { - if (!ecode) - { - packet->len = bytes_transferred; - std::vector packets; - packets.push_back (packet); - - boost::system::error_code ec; - size_t moreBytes = m_SocketV6.available (ec); - if (!ec) - { - while (moreBytes && packets.size () < 25) - { - packet = new SSUPacket (); - packet->len = m_SocketV6.receive_from (boost::asio::buffer (packet->buf, SSU_MTU_V6), packet->from, 0, ec); - if (!ec) - { - packets.push_back (packet); - moreBytes = m_SocketV6.available(ec); - if (ec) break; - } - else - { - LogPrint (eLogError, "SSU: v6 receive_from error: ", ec.message ()); - delete packet; - break; - } - } - } - - m_ServiceV6.post (std::bind (&SSUServer::HandleReceivedPackets, this, packets, &m_SessionsV6)); - ReceiveV6 (); - } - else - { - delete packet; - if (ecode != boost::asio::error::operation_aborted) - { - LogPrint (eLogError, "SSU: v6 receive error: ", ecode.message ()); - m_SocketV6.close (); - OpenSocketV6 (); - ReceiveV6 (); - } - } - } - - void SSUServer::HandleReceivedPackets (std::vector packets, - std::map > * sessions) - { - std::shared_ptr session; - for (auto& packet: packets) - { - try - { - if (!session || session->GetRemoteEndpoint () != packet->from) // we received packet for other session than previous - { - if (session) - { - session->FlushData (); - session = nullptr; - } - auto it = sessions->find (packet->from); - if (it != sessions->end ()) - session = it->second; - if (!session) - { - session = std::make_shared (*this, packet->from); - session->WaitForConnect (); - (*sessions)[packet->from] = session; - LogPrint (eLogDebug, "SSU: new session from ", packet->from.address ().to_string (), ":", packet->from.port (), " created"); - } - } - session->ProcessNextMessage (packet->buf, packet->len, packet->from); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SSU: HandleReceivedPackets ", ex.what ()); - if (session) session->FlushData (); - session = nullptr; - } - delete packet; - } - if (session) session->FlushData (); - } - - std::shared_ptr SSUServer::FindSession (std::shared_ptr router) const - { - if (!router) return nullptr; - auto address = router->GetSSUAddress (true); // v4 only - if (!address) return nullptr; - auto session = FindSession (boost::asio::ip::udp::endpoint (address->host, address->port)); - if (session || !context.SupportsV6 ()) - return session; - // try v6 - address = router->GetSSUV6Address (); - if (!address) return nullptr; - return FindSession (boost::asio::ip::udp::endpoint (address->host, address->port)); - } - - std::shared_ptr SSUServer::FindSession (const boost::asio::ip::udp::endpoint& e) const - { - auto& sessions = e.address ().is_v6 () ? m_SessionsV6 : m_Sessions; - auto it = sessions.find (e); - if (it != sessions.end ()) - return it->second; - else - return nullptr; - } - - void SSUServer::CreateSession (std::shared_ptr router, bool peerTest, bool v4only) - { - auto address = router->GetSSUAddress (v4only || !context.SupportsV6 ()); - if (address) - CreateSession (router, address->host, address->port, peerTest); - else - LogPrint (eLogWarning, "SSU: Router ", i2p::data::GetIdentHashAbbreviation (router->GetIdentHash ()), " doesn't have SSU address"); - } - - void SSUServer::CreateSession (std::shared_ptr router, - const boost::asio::ip::address& addr, int port, bool peerTest) - { - if (router) - { - if (router->UsesIntroducer ()) - m_Service.post (std::bind (&SSUServer::CreateSessionThroughIntroducer, this, router, peerTest)); // always V4 thread - else - { - boost::asio::ip::udp::endpoint remoteEndpoint (addr, port); - auto& s = addr.is_v6 () ? m_ServiceV6 : m_Service; - s.post (std::bind (&SSUServer::CreateDirectSession, this, router, remoteEndpoint, peerTest)); - } - } - } - - void SSUServer::CreateDirectSession (std::shared_ptr router, boost::asio::ip::udp::endpoint remoteEndpoint, bool peerTest) - { - auto& sessions = remoteEndpoint.address ().is_v6 () ? m_SessionsV6 : m_Sessions; - auto it = sessions.find (remoteEndpoint); - if (it != sessions.end ()) - { - auto session = it->second; - if (peerTest && session->GetState () == eSessionStateEstablished) - session->SendPeerTest (); - } - else - { - // otherwise create new session - auto session = std::make_shared (*this, remoteEndpoint, router, peerTest); - sessions[remoteEndpoint] = session; - // connect - LogPrint (eLogDebug, "SSU: Creating new session to [", i2p::data::GetIdentHashAbbreviation (router->GetIdentHash ()), "] ", - remoteEndpoint.address ().to_string (), ":", remoteEndpoint.port ()); - session->Connect (); - } - } - - void SSUServer::CreateSessionThroughIntroducer (std::shared_ptr router, bool peerTest) - { - if (router && router->UsesIntroducer ()) - { - auto address = router->GetSSUAddress (true); // v4 only for now - if (address) - { - boost::asio::ip::udp::endpoint remoteEndpoint (address->host, address->port); - auto it = m_Sessions.find (remoteEndpoint); - // check if session is presented already - if (it != m_Sessions.end ()) - { - auto session = it->second; - if (peerTest && session->GetState () == eSessionStateEstablished) - session->SendPeerTest (); - return; - } - // create new session - int numIntroducers = address->ssu->introducers.size (); - if (numIntroducers > 0) - { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - std::shared_ptr introducerSession; - const i2p::data::RouterInfo::Introducer * introducer = nullptr; - // we might have a session to introducer already - for (int i = 0; i < numIntroducers; i++) - { - auto intr = &(address->ssu->introducers[i]); - if (intr->iExp > 0 && ts > intr->iExp) continue; // skip expired introducer - boost::asio::ip::udp::endpoint ep (intr->iHost, intr->iPort); - if (ep.address ().is_v4 ()) // ipv4 only - { - if (!introducer) introducer = intr; // we pick first one for now - it = m_Sessions.find (ep); - if (it != m_Sessions.end ()) - { - introducerSession = it->second; - break; - } - } - } - if (!introducer) - { - LogPrint (eLogWarning, "SSU: Can't connect to unreachable router and no ipv4 non-expired introducers presented"); - return; - } - - if (introducerSession) // session found - LogPrint (eLogWarning, "SSU: Session to introducer already exists"); - else // create new - { - LogPrint (eLogDebug, "SSU: Creating new session to introducer ", introducer->iHost); - boost::asio::ip::udp::endpoint introducerEndpoint (introducer->iHost, introducer->iPort); - introducerSession = std::make_shared (*this, introducerEndpoint, router); - m_Sessions[introducerEndpoint] = introducerSession; - } -#if BOOST_VERSION >= 104900 - if (!address->host.is_unspecified () && address->port) -#endif - { - // create session - auto session = std::make_shared (*this, remoteEndpoint, router, peerTest); - m_Sessions[remoteEndpoint] = session; - - // introduce - LogPrint (eLogInfo, "SSU: Introduce new session to [", i2p::data::GetIdentHashAbbreviation (router->GetIdentHash ()), - "] through introducer ", introducer->iHost, ":", introducer->iPort); - session->WaitForIntroduction (); - if (i2p::context.GetRouterInfo ().UsesIntroducer ()) // if we are unreachable - { - uint8_t buf[1]; - Send (buf, 0, remoteEndpoint); // send HolePunch - } - } - introducerSession->Introduce (*introducer, router); - } - else - LogPrint (eLogWarning, "SSU: Can't connect to unreachable router and no introducers present"); - } - else - LogPrint (eLogWarning, "SSU: Router ", i2p::data::GetIdentHashAbbreviation (router->GetIdentHash ()), " doesn't have SSU address"); - } - } - - void SSUServer::DeleteSession (std::shared_ptr session) - { - if (session) - { - session->Close (); - auto& ep = session->GetRemoteEndpoint (); - if (ep.address ().is_v6 ()) - m_SessionsV6.erase (ep); - else - m_Sessions.erase (ep); - } - } - - void SSUServer::DeleteAllSessions () - { - for (auto& it: m_Sessions) - it.second->Close (); - m_Sessions.clear (); - - for (auto& it: m_SessionsV6) - it.second->Close (); - m_SessionsV6.clear (); - } - - template - std::shared_ptr SSUServer::GetRandomV4Session (Filter filter) // v4 only - { - std::vector > filteredSessions; - for (const auto& s :m_Sessions) - if (filter (s.second)) filteredSessions.push_back (s.second); - if (filteredSessions.size () > 0) - { - auto ind = rand () % filteredSessions.size (); - return filteredSessions[ind]; - } - return nullptr; - } - - std::shared_ptr SSUServer::GetRandomEstablishedV4Session (std::shared_ptr excluded) // v4 only - { - return GetRandomV4Session ( - [excluded](std::shared_ptr session)->bool - { - return session->GetState () == eSessionStateEstablished && session != excluded; - } - ); - } - - template - std::shared_ptr SSUServer::GetRandomV6Session (Filter filter) // v6 only - { - std::vector > filteredSessions; - for (const auto& s :m_SessionsV6) - if (filter (s.second)) filteredSessions.push_back (s.second); - if (filteredSessions.size () > 0) - { - auto ind = rand () % filteredSessions.size (); - return filteredSessions[ind]; - } - return nullptr; - } - - std::shared_ptr SSUServer::GetRandomEstablishedV6Session (std::shared_ptr excluded) // v6 only - { - return GetRandomV6Session ( - [excluded](std::shared_ptr session)->bool - { - return session->GetState () == eSessionStateEstablished && session != excluded; - } - ); - } - - std::set SSUServer::FindIntroducers (int maxNumIntroducers) - { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - std::set ret; - for (int i = 0; i < maxNumIntroducers; i++) - { - auto session = GetRandomV4Session ( - [&ret, ts](std::shared_ptr session)->bool - { - return session->GetRelayTag () && !ret.count (session.get ()) && - session->GetState () == eSessionStateEstablished && - ts < session->GetCreationTime () + SSU_TO_INTRODUCER_SESSION_DURATION; - } - ); - if (session) - { - ret.insert (session.get ()); - break; - } - } - return ret; - } - - void SSUServer::ScheduleIntroducersUpdateTimer () - { - m_IntroducersUpdateTimer.expires_from_now (boost::posix_time::seconds(SSU_KEEP_ALIVE_INTERVAL)); - m_IntroducersUpdateTimer.async_wait (std::bind (&SSUServer::HandleIntroducersUpdateTimer, - this, std::placeholders::_1)); - } - - void SSUServer::HandleIntroducersUpdateTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - // timeout expired - if (i2p::context.GetStatus () == eRouterStatusTesting) - { - // we still don't know if we need introducers - ScheduleIntroducersUpdateTimer (); - return; - } - if (i2p::context.GetStatus () == eRouterStatusOK) return; // we don't need introducers anymore - // we are firewalled - if (!i2p::context.IsUnreachable ()) i2p::context.SetUnreachable (); - std::list newList; - size_t numIntroducers = 0; - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - for (const auto& it : m_Introducers) - { - auto session = FindSession (it); - if (session && ts < session->GetCreationTime () + SSU_TO_INTRODUCER_SESSION_DURATION) - { - session->SendKeepAlive (); - newList.push_back (it); - numIntroducers++; - } - else - i2p::context.RemoveIntroducer (it); - } - - if (numIntroducers < SSU_MAX_NUM_INTRODUCERS) - { - // create new - auto introducers = FindIntroducers (SSU_MAX_NUM_INTRODUCERS); - for (const auto& it1: introducers) - { - const auto& ep = it1->GetRemoteEndpoint (); - i2p::data::RouterInfo::Introducer introducer; - introducer.iHost = ep.address (); - introducer.iPort = ep.port (); - introducer.iTag = it1->GetRelayTag (); - introducer.iKey = it1->GetIntroKey (); - if (i2p::context.AddIntroducer (introducer)) - { - newList.push_back (ep); - if (newList.size () >= SSU_MAX_NUM_INTRODUCERS) break; - } - } - } - m_Introducers = newList; - if (m_Introducers.size () < SSU_MAX_NUM_INTRODUCERS) - { - auto introducer = i2p::data::netdb.GetRandomIntroducer (); - if (introducer) - CreateSession (introducer); - } - ScheduleIntroducersUpdateTimer (); - } - } - - void SSUServer::NewPeerTest (uint32_t nonce, PeerTestParticipant role, std::shared_ptr session) - { - m_PeerTests[nonce] = { i2p::util::GetMillisecondsSinceEpoch (), role, session }; - } - - PeerTestParticipant SSUServer::GetPeerTestParticipant (uint32_t nonce) - { - auto it = m_PeerTests.find (nonce); - if (it != m_PeerTests.end ()) - return it->second.role; - else - return ePeerTestParticipantUnknown; - } - - std::shared_ptr SSUServer::GetPeerTestSession (uint32_t nonce) - { - auto it = m_PeerTests.find (nonce); - if (it != m_PeerTests.end ()) - return it->second.session; - else - return nullptr; - } - - void SSUServer::UpdatePeerTest (uint32_t nonce, PeerTestParticipant role) - { - auto it = m_PeerTests.find (nonce); - if (it != m_PeerTests.end ()) - it->second.role = role; - } - - void SSUServer::RemovePeerTest (uint32_t nonce) - { - m_PeerTests.erase (nonce); - } - - void SSUServer::SchedulePeerTestsCleanupTimer () - { - m_PeerTestsCleanupTimer.expires_from_now (boost::posix_time::seconds(SSU_PEER_TEST_TIMEOUT)); - m_PeerTestsCleanupTimer.async_wait (std::bind (&SSUServer::HandlePeerTestsCleanupTimer, - this, std::placeholders::_1)); - } - - void SSUServer::HandlePeerTestsCleanupTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - int numDeleted = 0; - uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); - for (auto it = m_PeerTests.begin (); it != m_PeerTests.end ();) - { - if (ts > it->second.creationTime + SSU_PEER_TEST_TIMEOUT*1000LL) - { - numDeleted++; - it = m_PeerTests.erase (it); - } - else - ++it; - } - if (numDeleted > 0) - LogPrint (eLogDebug, "SSU: ", numDeleted, " peer tests have been expired"); - SchedulePeerTestsCleanupTimer (); - } - } - - void SSUServer::ScheduleTermination () - { - m_TerminationTimer.expires_from_now (boost::posix_time::seconds(SSU_TERMINATION_CHECK_TIMEOUT)); - m_TerminationTimer.async_wait (std::bind (&SSUServer::HandleTerminationTimer, - this, std::placeholders::_1)); - } - - void SSUServer::HandleTerminationTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - auto ts = i2p::util::GetSecondsSinceEpoch (); - for (auto& it: m_Sessions) - if (it.second->IsTerminationTimeoutExpired (ts)) - { - auto session = it.second; - if (it.first != session->GetRemoteEndpoint ()) - LogPrint (eLogWarning, "SSU: remote endpoint ", session->GetRemoteEndpoint (), " doesn't match key ", it.first, " adjusted"); - m_Service.post ([session] - { - LogPrint (eLogWarning, "SSU: no activity with ", session->GetRemoteEndpoint (), " for ", session->GetTerminationTimeout (), " seconds"); - session->Failed (); - }); - } - ScheduleTermination (); - } - } - - void SSUServer::ScheduleTerminationV6 () - { - m_TerminationTimerV6.expires_from_now (boost::posix_time::seconds(SSU_TERMINATION_CHECK_TIMEOUT)); - m_TerminationTimerV6.async_wait (std::bind (&SSUServer::HandleTerminationTimerV6, - this, std::placeholders::_1)); - } - - void SSUServer::HandleTerminationTimerV6 (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - auto ts = i2p::util::GetSecondsSinceEpoch (); - for (auto& it: m_SessionsV6) - if (it.second->IsTerminationTimeoutExpired (ts)) - { - auto session = it.second; - if (it.first != session->GetRemoteEndpoint ()) - LogPrint (eLogWarning, "SSU: remote endpoint ", session->GetRemoteEndpoint (), " doesn't match key ", it.first); - m_ServiceV6.post ([session] - { - LogPrint (eLogWarning, "SSU: no activity with ", session->GetRemoteEndpoint (), " for ", session->GetTerminationTimeout (), " seconds"); - session->Failed (); - }); - } - ScheduleTerminationV6 (); - } - } -} -} - diff --git a/libi2pd/SSU.h b/libi2pd/SSU.h deleted file mode 100644 index 10e5ec06..00000000 --- a/libi2pd/SSU.h +++ /dev/null @@ -1,138 +0,0 @@ -#ifndef SSU_H__ -#define SSU_H__ - -#include -#include -#include -#include -#include -#include -#include -#include -#include "Crypto.h" -#include "I2PEndian.h" -#include "Identity.h" -#include "RouterInfo.h" -#include "I2NPProtocol.h" -#include "SSUSession.h" - -namespace i2p -{ -namespace transport -{ - const int SSU_KEEP_ALIVE_INTERVAL = 30; // 30 seconds - const int SSU_PEER_TEST_TIMEOUT = 60; // 60 seconds - const int SSU_TO_INTRODUCER_SESSION_DURATION = 3600; // 1 hour - const int SSU_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds - const size_t SSU_MAX_NUM_INTRODUCERS = 3; - const size_t SSU_SOCKET_RECEIVE_BUFFER_SIZE = 0x1FFFF; // 128K - const size_t SSU_SOCKET_SEND_BUFFER_SIZE = 0x1FFFF; // 128K - - struct SSUPacket - { - i2p::crypto::AESAlignedBuffer buf; // max MTU + iv + size - boost::asio::ip::udp::endpoint from; - size_t len; - }; - - class SSUServer - { - public: - - SSUServer (int port); - SSUServer (const boost::asio::ip::address & addr, int port); // ipv6 only constructor - ~SSUServer (); - void Start (); - void Stop (); - void CreateSession (std::shared_ptr router, bool peerTest = false, bool v4only = false); - void CreateSession (std::shared_ptr router, - const boost::asio::ip::address& addr, int port, bool peerTest = false); - void CreateDirectSession (std::shared_ptr router, boost::asio::ip::udp::endpoint remoteEndpoint, bool peerTest); - std::shared_ptr FindSession (std::shared_ptr router) const; - std::shared_ptr FindSession (const boost::asio::ip::udp::endpoint& e) const; - std::shared_ptr GetRandomEstablishedV4Session (std::shared_ptr excluded); - std::shared_ptr GetRandomEstablishedV6Session (std::shared_ptr excluded); - void DeleteSession (std::shared_ptr session); - void DeleteAllSessions (); - - boost::asio::io_service& GetService () { return m_Service; }; - boost::asio::io_service& GetServiceV6 () { return m_ServiceV6; }; - const boost::asio::ip::udp::endpoint& GetEndpoint () const { return m_Endpoint; }; - void Send (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& to); - void AddRelay (uint32_t tag, std::shared_ptr relay); - void RemoveRelay (uint32_t tag); - std::shared_ptr FindRelaySession (uint32_t tag); - - void NewPeerTest (uint32_t nonce, PeerTestParticipant role, std::shared_ptr session = nullptr); - PeerTestParticipant GetPeerTestParticipant (uint32_t nonce); - std::shared_ptr GetPeerTestSession (uint32_t nonce); - void UpdatePeerTest (uint32_t nonce, PeerTestParticipant role); - void RemovePeerTest (uint32_t nonce); - - private: - - void OpenSocket (); - void OpenSocketV6 (); - void Run (); - void RunV6 (); - void RunReceivers (); - void RunReceiversV6 (); - void Receive (); - void ReceiveV6 (); - void HandleReceivedFrom (const boost::system::error_code& ecode, std::size_t bytes_transferred, SSUPacket * packet); - void HandleReceivedFromV6 (const boost::system::error_code& ecode, std::size_t bytes_transferred, SSUPacket * packet); - void HandleReceivedPackets (std::vector packets, - std::map >* sessions); - - void CreateSessionThroughIntroducer (std::shared_ptr router, bool peerTest = false); - template - std::shared_ptr GetRandomV4Session (Filter filter); - template - std::shared_ptr GetRandomV6Session (Filter filter); - - std::set FindIntroducers (int maxNumIntroducers); - void ScheduleIntroducersUpdateTimer (); - void HandleIntroducersUpdateTimer (const boost::system::error_code& ecode); - - void SchedulePeerTestsCleanupTimer (); - void HandlePeerTestsCleanupTimer (const boost::system::error_code& ecode); - - // timer - void ScheduleTermination (); - void HandleTerminationTimer (const boost::system::error_code& ecode); - void ScheduleTerminationV6 (); - void HandleTerminationTimerV6 (const boost::system::error_code& ecode); - - private: - - struct PeerTest - { - uint64_t creationTime; - PeerTestParticipant role; - std::shared_ptr session; // for Bob to Alice - }; - - bool m_OnlyV6; - bool m_IsRunning; - std::thread * m_Thread, * m_ThreadV6, * m_ReceiversThread, * m_ReceiversThreadV6; - boost::asio::io_service m_Service, m_ServiceV6, m_ReceiversService, m_ReceiversServiceV6; - boost::asio::io_service::work m_Work, m_WorkV6, m_ReceiversWork, m_ReceiversWorkV6; - boost::asio::ip::udp::endpoint m_Endpoint, m_EndpointV6; - boost::asio::ip::udp::socket m_Socket, m_SocketV6; - boost::asio::deadline_timer m_IntroducersUpdateTimer, m_PeerTestsCleanupTimer, - m_TerminationTimer, m_TerminationTimerV6; - std::list m_Introducers; // introducers we are connected to - std::map > m_Sessions, m_SessionsV6; - std::map > m_Relays; // we are introducer - std::map m_PeerTests; // nonce -> creation time in milliseconds - - public: - // for HTTP only - const decltype(m_Sessions)& GetSessions () const { return m_Sessions; }; - const decltype(m_SessionsV6)& GetSessionsV6 () const { return m_SessionsV6; }; - }; -} -} - -#endif - diff --git a/libi2pd/SSU2.cpp b/libi2pd/SSU2.cpp new file mode 100644 index 00000000..fc2355a5 --- /dev/null +++ b/libi2pd/SSU2.cpp @@ -0,0 +1,1802 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include "Log.h" +#include "RouterContext.h" +#include "Transports.h" +#include "NetDb.hpp" +#include "Config.h" +#include "SSU2.h" + +namespace i2p +{ +namespace transport +{ + SSU2Server::SSU2Server (): + RunnableServiceWithWork ("SSU2"), m_ReceiveService ("SSU2r"), + m_SocketV4 (m_ReceiveService.GetService ()), m_SocketV6 (m_ReceiveService.GetService ()), + m_AddressV4 (boost::asio::ip::address_v4()), m_AddressV6 (boost::asio::ip::address_v6()), + m_TerminationTimer (GetService ()), m_CleanupTimer (GetService ()), m_ResendTimer (GetService ()), + m_IntroducersUpdateTimer (GetService ()), m_IntroducersUpdateTimerV6 (GetService ()), + m_IsPublished (true), m_IsSyncClockFromPeers (true), m_PendingTimeOffset (0), + m_Rng(i2p::util::GetMonotonicMicroseconds ()%1000000LL), m_IsThroughProxy (false) + { + } + + void SSU2Server::Start () + { + if (!IsRunning ()) + { + StartIOService (); + i2p::config::GetOption ("ssu2.published", m_IsPublished); + i2p::config::GetOption("nettime.frompeers", m_IsSyncClockFromPeers); + bool found = false; + auto addresses = i2p::context.GetRouterInfo ().GetAddresses (); + if (!addresses) return; + for (const auto& address: *addresses) + { + if (!address) continue; + if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2) + { + if (m_IsThroughProxy) + { + found = true; + if (address->IsV6 ()) + { + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu6", mtu); + if (!mtu || mtu > SSU2_MAX_PACKET_SIZE - SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE) + mtu = SSU2_MAX_PACKET_SIZE - SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE; + i2p::context.SetMTU (mtu, false); + } + else + { + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu4", mtu); + if (!mtu || mtu > SSU2_MAX_PACKET_SIZE - SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE) + mtu = SSU2_MAX_PACKET_SIZE - SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE; + i2p::context.SetMTU (mtu, true); + } + continue; // we don't need port for proxy + } + auto port = address->port; + if (!port) + { + uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port); + if (ssu2Port) port = ssu2Port; + else + { + uint16_t p; i2p::config::GetOption ("port", p); + if (p) port = p; + } + } + if (port) + { + if (address->IsV4 ()) + { + found = true; + LogPrint (eLogDebug, "SSU2: Opening IPv4 socket at Start"); + OpenSocket (boost::asio::ip::udp::endpoint (m_AddressV4, port)); + boost::asio::post (m_ReceiveService.GetService (), + [this]() + { + Receive (m_SocketV4); + }); + ScheduleIntroducersUpdateTimer (); // wait for 30 seconds and decide if we need introducers + } + if (address->IsV6 ()) + { + found = true; + LogPrint (eLogDebug, "SSU2: Opening IPv6 socket at Start"); + OpenSocket (boost::asio::ip::udp::endpoint (m_AddressV6, port)); + boost::asio::post (m_ReceiveService.GetService (), + [this]() + { + Receive (m_SocketV6); + }); + ScheduleIntroducersUpdateTimerV6 (); // wait for 30 seconds and decide if we need introducers + } + } + else + LogPrint (eLogCritical, "SSU2: Can't start server because port not specified"); + } + } + if (found) + { + if (m_IsThroughProxy) + ConnectToProxy (); + m_ReceiveService.Start (); + } + ScheduleTermination (); + ScheduleCleanup (); + ScheduleResend (false); + } + } + + void SSU2Server::Stop () + { + if (IsRunning ()) + { + m_TerminationTimer.cancel (); + m_CleanupTimer.cancel (); + m_ResendTimer.cancel (); + m_IntroducersUpdateTimer.cancel (); + m_IntroducersUpdateTimerV6.cancel (); + } + + auto sessions = m_Sessions; + for (auto& it: sessions) + { + it.second->RequestTermination (eSSU2TerminationReasonRouterShutdown); + it.second->Done (); + } + + if (context.SupportsV4 () || context.SupportsV6 ()) + m_ReceiveService.Stop (); + m_SocketV4.close (); + m_SocketV6.close (); + + if (m_UDPAssociateSocket) + { + m_UDPAssociateSocket->close (); + m_UDPAssociateSocket.reset (nullptr); + } + + StopIOService (); + + m_Sessions.clear (); + m_SessionsByRouterHash.clear (); + m_PendingOutgoingSessions.clear (); + m_Relays.clear (); + m_PeerTests.clear (); + m_Introducers.clear (); + m_IntroducersV6.clear (); + m_ConnectedRecently.clear (); + m_RequestedPeerTests.clear (); + + m_PacketsPool.ReleaseMt (m_ReceivedPacketsQueue); + m_ReceivedPacketsQueue.clear (); + } + + void SSU2Server::SetLocalAddress (const boost::asio::ip::address& localAddress) + { + if (localAddress.is_unspecified ()) return; + if (localAddress.is_v4 ()) + { + m_AddressV4 = localAddress; + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu4", mtu); + if (!mtu) mtu = i2p::util::net::GetMTU (localAddress); + if (mtu < (int)SSU2_MIN_PACKET_SIZE) mtu = SSU2_MIN_PACKET_SIZE; + if (mtu > (int)SSU2_MAX_PACKET_SIZE) mtu = SSU2_MAX_PACKET_SIZE; + i2p::context.SetMTU (mtu, true); + } + else if (localAddress.is_v6 ()) + { + m_AddressV6 = localAddress; + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu6", mtu); + if (!mtu) + { + int maxMTU = i2p::util::net::GetMaxMTU (localAddress.to_v6 ()); + mtu = i2p::util::net::GetMTU (localAddress); + if (mtu > maxMTU) mtu = maxMTU; + } + else + if (mtu > (int)SSU2_MAX_PACKET_SIZE) mtu = SSU2_MAX_PACKET_SIZE; + if (mtu < (int)SSU2_MIN_PACKET_SIZE) mtu = SSU2_MIN_PACKET_SIZE; + i2p::context.SetMTU (mtu, false); + } + } + + bool SSU2Server::IsSupported (const boost::asio::ip::address& addr) const + { + if (m_IsThroughProxy) + return m_SocketV4.is_open (); + if (addr.is_v4 ()) + { + if (m_SocketV4.is_open ()) + return true; + } + else if (addr.is_v6 ()) + { + if (m_SocketV6.is_open ()) + return true; + } + return false; + } + + uint16_t SSU2Server::GetPort (bool v4) const + { + boost::system::error_code ec; + boost::asio::ip::udp::endpoint ep = (v4 || m_IsThroughProxy) ? m_SocketV4.local_endpoint (ec) : m_SocketV6.local_endpoint (ec); + if (ec) return 0; + return ep.port (); + } + + bool SSU2Server::IsConnectedRecently (const boost::asio::ip::udp::endpoint& ep, bool max) + { + if (!ep.port () || ep.address ().is_unspecified ()) return false; + std::lock_guard l(m_ConnectedRecentlyMutex); + auto it = m_ConnectedRecently.find (ep); + if (it != m_ConnectedRecently.end ()) + { + if (i2p::util::GetSecondsSinceEpoch () <= it->second + (max ? SSU2_MAX_HOLE_PUNCH_EXPIRATION : SSU2_MIN_HOLE_PUNCH_EXPIRATION)) + return true; + else if (max) + m_ConnectedRecently.erase (it); + } + return false; + } + + void SSU2Server::AddConnectedRecently (const boost::asio::ip::udp::endpoint& ep, uint64_t ts) + { + if (!ep.port () || ep.address ().is_unspecified () || + i2p::util::GetSecondsSinceEpoch () > ts + SSU2_MAX_HOLE_PUNCH_EXPIRATION) return; + std::lock_guard l(m_ConnectedRecentlyMutex); + auto [it, added] = m_ConnectedRecently.try_emplace (ep, ts); + if (!added && ts > it->second) + it->second = ts; // renew timestamp of existing endpoint + } + + void SSU2Server::AdjustTimeOffset (int64_t offset, std::shared_ptr from) + { + if (offset) + { + if (m_PendingTimeOffset) // one more + { + if (m_PendingTimeOffsetFrom && from && + m_PendingTimeOffsetFrom->GetIdentHash ().GetLL()[0] != from->GetIdentHash ().GetLL()[0]) // from different routers + { + if (std::abs (m_PendingTimeOffset - offset) < SSU2_CLOCK_SKEW) + { + offset = (m_PendingTimeOffset + offset)/2; // average + LogPrint (eLogWarning, "SSU2: Clock adjusted by ", offset, " seconds"); + i2p::util::AdjustTimeOffset (offset); + } + else + LogPrint (eLogWarning, "SSU2: Time offsets are too different. Clock not adjusted"); + m_PendingTimeOffset = 0; + m_PendingTimeOffsetFrom = nullptr; + } + else + LogPrint (eLogWarning, "SSU2: Time offsets from same router. Clock not adjusted"); + } + else + { + m_PendingTimeOffset = offset; // first + m_PendingTimeOffsetFrom = from; + } + } + else + { + m_PendingTimeOffset = 0; // reset + m_PendingTimeOffsetFrom = nullptr; + } + } + + boost::asio::ip::udp::socket& SSU2Server::OpenSocket (const boost::asio::ip::udp::endpoint& localEndpoint) + { + boost::asio::ip::udp::socket& socket = localEndpoint.address ().is_v6 () ? m_SocketV6 : m_SocketV4; + try + { + if (socket.is_open ()) + socket.close (); + socket.open (localEndpoint.protocol ()); + if (localEndpoint.address ().is_v6 ()) + socket.set_option (boost::asio::ip::v6_only (true)); + + uint64_t bufferSize = i2p::context.GetBandwidthLimit() * 1024 / 5; // max lag = 200ms + bufferSize = std::max(SSU2_SOCKET_MIN_BUFFER_SIZE, std::min(bufferSize, SSU2_SOCKET_MAX_BUFFER_SIZE)); + + boost::asio::socket_base::receive_buffer_size receiveBufferSizeSet (bufferSize); + boost::asio::socket_base::send_buffer_size sendBufferSizeSet (bufferSize); + socket.set_option (receiveBufferSizeSet); + socket.set_option (sendBufferSizeSet); + boost::asio::socket_base::receive_buffer_size receiveBufferSizeGet; + boost::asio::socket_base::send_buffer_size sendBufferSizeGet; + socket.get_option (receiveBufferSizeGet); + socket.get_option (sendBufferSizeGet); + if (receiveBufferSizeGet.value () != receiveBufferSizeSet.value () || + sendBufferSizeGet.value () != sendBufferSizeSet.value ()) + { + LogPrint (eLogWarning, "SSU2: Socket receive buffer size: requested = ", + receiveBufferSizeSet.value (), ", got = ", receiveBufferSizeGet.value ()); + LogPrint (eLogWarning, "SSU2: Socket send buffer size: requested = ", + sendBufferSizeSet.value (), ", got = ", sendBufferSizeGet.value ()); + } + else + { + LogPrint (eLogInfo, "SSU2: Socket receive buffer size: ", receiveBufferSizeGet.value ()); + LogPrint (eLogInfo, "SSU2: Socket send buffer size: ", sendBufferSizeGet.value ()); + } + + socket.non_blocking (true); + } + catch (std::exception& ex ) + { + LogPrint (eLogCritical, "SSU2: Failed to open socket on ", localEndpoint.address (), ": ", ex.what()); + ThrowFatal ("Unable to start SSU2 transport on ", localEndpoint.address (), ": ", ex.what ()); + return socket; + } + try + { + socket.bind (localEndpoint); + LogPrint (eLogInfo, "SSU2: Start listening on ", localEndpoint); + } + catch (std::exception& ex ) + { + LogPrint (eLogWarning, "SSU2: Failed to bind to ", localEndpoint, ": ", ex.what(), ". Actual endpoint is ", socket.local_endpoint ()); + // we can continue without binding being firewalled + } + return socket; + } + + void SSU2Server::Receive (boost::asio::ip::udp::socket& socket) + { + Packet * packet = m_PacketsPool.AcquireMt (); + socket.async_receive_from (boost::asio::buffer (packet->buf, SSU2_MAX_PACKET_SIZE), packet->from, + std::bind (&SSU2Server::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet, std::ref (socket))); + } + + void SSU2Server::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred, + Packet * packet, boost::asio::ip::udp::socket& socket) + { + if (!ecode + || ecode == boost::asio::error::connection_refused + || ecode == boost::asio::error::connection_reset + || ecode == boost::asio::error::network_reset + || ecode == boost::asio::error::network_unreachable + || ecode == boost::asio::error::host_unreachable +#ifdef _WIN32 // windows can throw WinAPI error, which is not handled by ASIO + || ecode.value() == boost::winapi::ERROR_CONNECTION_REFUSED_ + || ecode.value() == boost::winapi::WSAENETRESET_ // 10052 + || ecode.value() == boost::winapi::ERROR_NETWORK_UNREACHABLE_ + || ecode.value() == boost::winapi::ERROR_HOST_UNREACHABLE_ +#endif + ) + // just try continue reading when received ICMP response otherwise socket can crash, + // but better to find out which host were sent it and mark that router as unreachable + { + i2p::transport::transports.UpdateReceivedBytes (bytes_transferred); + if (bytes_transferred < SSU2_MIN_RECEIVED_PACKET_SIZE) + { + // drop too short packets + m_PacketsPool.ReleaseMt (packet); + Receive (socket); + return; + } + packet->len = bytes_transferred; + + boost::system::error_code ec; + size_t moreBytes = socket.available (ec); + if (!ec && moreBytes) + { + std::list packets; + packets.push_back (packet); + while (moreBytes && packets.size () < SSU2_MAX_NUM_PACKETS_PER_BATCH) + { + packet = m_PacketsPool.AcquireMt (); + packet->len = socket.receive_from (boost::asio::buffer (packet->buf, SSU2_MAX_PACKET_SIZE), packet->from, 0, ec); + if (!ec) + { + i2p::transport::transports.UpdateReceivedBytes (packet->len); + if (packet->len >= SSU2_MIN_RECEIVED_PACKET_SIZE) + packets.push_back (packet); + else // drop too short packets + m_PacketsPool.ReleaseMt (packet); + moreBytes = socket.available(ec); + if (ec) break; + } + else + { + LogPrint (eLogError, "SSU2: receive_from error: code ", ec.value(), ": ", ec.message ()); + m_PacketsPool.ReleaseMt (packet); + break; + } + } + InsertToReceivedPacketsQueue (packets); + } + else + InsertToReceivedPacketsQueue (packet); + Receive (socket); + } + else + { + m_PacketsPool.ReleaseMt (packet); + if (ecode != boost::asio::error::operation_aborted) + { + LogPrint (eLogError, "SSU2: Receive error: code ", ecode.value(), ": ", ecode.message ()); + if (m_IsThroughProxy) + { + m_UDPAssociateSocket.reset (nullptr); + m_ProxyRelayEndpoint.reset (nullptr); + m_SocketV4.close (); + ConnectToProxy (); + } + else + { + auto ep = socket.local_endpoint (); + LogPrint (eLogCritical, "SSU2: Reopening socket in HandleReceivedFrom: code ", ecode.value(), ": ", ecode.message ()); + OpenSocket (ep); + Receive (socket); + } + } + } + } + + void SSU2Server::HandleReceivedPackets (std::list&& packets) + { + if (packets.empty ()) return; + if (m_IsThroughProxy) + for (auto it: packets) + ProcessNextPacketFromProxy (it->buf, it->len); + else + for (auto it: packets) + ProcessNextPacket (it->buf, it->len, it->from); + m_PacketsPool.ReleaseMt (packets); + if (m_LastSession && m_LastSession->GetState () != eSSU2SessionStateTerminated) + m_LastSession->FlushData (); + } + + void SSU2Server::InsertToReceivedPacketsQueue (Packet * packet) + { + if (!packet) return; + bool empty = false; + { + std::lock_guard l(m_ReceivedPacketsQueueMutex); + empty = m_ReceivedPacketsQueue.empty (); + m_ReceivedPacketsQueue.push_back (packet); + } + if (empty) + boost::asio::post (GetService (), [this]() { HandleReceivedPacketsQueue (); }); + } + + void SSU2Server::InsertToReceivedPacketsQueue (std::list& packets) + { + if (packets.empty ()) return; + size_t queueSize = 0; + { + std::lock_guard l(m_ReceivedPacketsQueueMutex); + queueSize = m_ReceivedPacketsQueue.size (); + if (queueSize < SSU2_MAX_RECEIVED_QUEUE_SIZE) + m_ReceivedPacketsQueue.splice (m_ReceivedPacketsQueue.end (), packets); + else + { + LogPrint (eLogError, "SSU2: Received queue size ", queueSize, " exceeds max size", SSU2_MAX_RECEIVED_QUEUE_SIZE); + m_PacketsPool.ReleaseMt (packets); + queueSize = 0; // invoke processing just in case + } + } + if (!queueSize) + boost::asio::post (GetService (), [this]() { HandleReceivedPacketsQueue (); }); + } + + void SSU2Server::HandleReceivedPacketsQueue () + { + std::list receivedPackets; + { + std::lock_guard l(m_ReceivedPacketsQueueMutex); + m_ReceivedPacketsQueue.swap (receivedPackets); + } + HandleReceivedPackets (std::move (receivedPackets)); + } + + bool SSU2Server::AddSession (std::shared_ptr session) + { + if (session) + { + if (m_Sessions.emplace (session->GetConnID (), session).second) + { + if (session->GetState () != eSSU2SessionStatePeerTest) + AddSessionByRouterHash (session); + return true; + } + } + return false; + } + + void SSU2Server::RemoveSession (uint64_t connID) + { + auto it = m_Sessions.find (connID); + if (it != m_Sessions.end ()) + { + if (it->second->GetState () != eSSU2SessionStatePeerTest) + { + auto ident = it->second->GetRemoteIdentity (); + if (ident) + { + std::lock_guard l(m_SessionsByRouterHashMutex); + auto it1 = m_SessionsByRouterHash.find (ident->GetIdentHash ()); + if (it1 != m_SessionsByRouterHash.end () && it->second == it1->second.lock ()) + m_SessionsByRouterHash.erase (it1); + } + } + if (m_LastSession == it->second) + m_LastSession = nullptr; + m_Sessions.erase (it); + } + } + + void SSU2Server::RequestRemoveSession (uint64_t connID) + { + boost::asio::post (GetService (), [connID, this]() { RemoveSession (connID); }); + } + + void SSU2Server::AddSessionByRouterHash (std::shared_ptr session) + { + if (session) + { + auto ident = session->GetRemoteIdentity (); + if (ident) + { + std::shared_ptr oldSession; + { + std::lock_guard l(m_SessionsByRouterHashMutex); + auto ret = m_SessionsByRouterHash.emplace (ident->GetIdentHash (), session); + if (!ret.second) + { + oldSession = ret.first->second.lock (); + // update session + ret.first->second = session; + } + } + if (oldSession && oldSession != session) + { + // session already exists + LogPrint (eLogWarning, "SSU2: Session to ", ident->GetIdentHash ().ToBase64 (), " already exists"); + // move unsent msgs to new session + oldSession->MoveSendQueue (session); + // terminate existing + boost::asio::post (GetService (), std::bind (&SSU2Session::RequestTermination, oldSession, eSSU2TerminationReasonReplacedByNewSession)); + } + } + } + } + + bool SSU2Server::AddPendingOutgoingSession (std::shared_ptr session) + { + if (!session) return false; + std::lock_guard l(m_PendingOutgoingSessionsMutex); + return m_PendingOutgoingSessions.emplace (session->GetRemoteEndpoint (), session).second; + } + + std::shared_ptr SSU2Server::FindSession (const i2p::data::IdentHash& ident) + { + std::lock_guard l(m_SessionsByRouterHashMutex); + auto it = m_SessionsByRouterHash.find (ident); + if (it != m_SessionsByRouterHash.end ()) + { + if (!it->second.expired ()) + { + auto s = it->second.lock (); + if (s && s->GetState () != eSSU2SessionStateTerminated) + return s; + } + m_SessionsByRouterHash.erase (it); + } + return nullptr; + } + + std::shared_ptr SSU2Server::FindPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep) const + { + std::lock_guard l(m_PendingOutgoingSessionsMutex); + auto it = m_PendingOutgoingSessions.find (ep); + if (it != m_PendingOutgoingSessions.end ()) + return it->second; + return nullptr; + } + + void SSU2Server::RemovePendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep) + { + std::lock_guard l(m_PendingOutgoingSessionsMutex); + m_PendingOutgoingSessions.erase (ep); + } + + std::shared_ptr SSU2Server::GetRandomPeerTestSession ( + i2p::data::RouterInfo::CompatibleTransports remoteTransports, const i2p::data::IdentHash& excluded) + { + if (m_Sessions.empty ()) return nullptr; + int ind = m_Rng () % m_Sessions.size (); + auto it = m_Sessions.begin (); + std::advance (it, ind); + while (it != m_Sessions.end ()) + { + if (it->second->IsEstablished () && (it->second->GetRemotePeerTestTransports () & remoteTransports) && + it->second->GetRemoteIdentity ()->GetIdentHash () != excluded) + return it->second; + it++; + } + // not found, try from beginning + it = m_Sessions.begin (); + while (it != m_Sessions.end () && ind) + { + if (it->second->IsEstablished () && (it->second->GetRemotePeerTestTransports () & remoteTransports) && + it->second->GetRemoteIdentity ()->GetIdentHash () != excluded) + return it->second; + it++; ind--; + } + return nullptr; + } + + void SSU2Server::AddRelay (uint32_t tag, std::shared_ptr relay) + { + m_Relays.emplace (tag, relay); + } + + void SSU2Server::RemoveRelay (uint32_t tag) + { + m_Relays.erase (tag); + } + + std::shared_ptr SSU2Server::FindRelaySession (uint32_t tag) + { + auto it = m_Relays.find (tag); + if (it != m_Relays.end ()) + { + if (!it->second.expired ()) + { + auto s = it->second.lock (); + if (s && s->IsEstablished ()) + return s; + } + m_Relays.erase (it); + } + return nullptr; + } + + bool SSU2Server::AddPeerTest (uint32_t nonce, std::shared_ptr aliceSession, uint64_t ts) + { + return m_PeerTests.emplace (nonce, std::pair{ aliceSession, ts }).second; + } + + std::shared_ptr SSU2Server::GetPeerTest (uint32_t nonce) + { + auto it = m_PeerTests.find (nonce); + if (it != m_PeerTests.end ()) + { + auto s = it->second.first.lock (); + m_PeerTests.erase (it); + return s; + } + return nullptr; + } + + bool SSU2Server::AddRequestedPeerTest (uint32_t nonce, std::shared_ptr session, uint64_t ts) + { + return m_RequestedPeerTests.emplace (nonce, std::pair{ session, ts }).second; + } + + std::shared_ptr SSU2Server::GetRequestedPeerTest (uint32_t nonce) + { + auto it = m_RequestedPeerTests.find (nonce); + if (it != m_RequestedPeerTests.end ()) + { + auto s = it->second.first.lock (); + m_RequestedPeerTests.erase (it); + return s; + } + return nullptr; + } + + void SSU2Server::ProcessNextPacket (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint) + { + if (len < 24) return; + uint64_t connID; + memcpy (&connID, buf, 8); + connID ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 24)); + if (!m_LastSession || m_LastSession->GetConnID () != connID) + { + if (m_LastSession) m_LastSession->FlushData (); + auto it = m_Sessions.find (connID); + if (it != m_Sessions.end ()) + m_LastSession = it->second; + else + m_LastSession = nullptr; + } + if (m_LastSession) + { + switch (m_LastSession->GetState ()) + { + case eSSU2SessionStateEstablished: + case eSSU2SessionStateSessionConfirmedSent: + m_LastSession->ProcessData (buf, len, senderEndpoint); + break; + case eSSU2SessionStateSessionCreatedSent: + if (!m_LastSession->ProcessSessionConfirmed (buf, len)) + { + m_LastSession->Done (); + m_LastSession = nullptr; + } + break; + case eSSU2SessionStateIntroduced: + if (m_LastSession->GetRemoteEndpoint ().address ().is_unspecified ()) + m_LastSession->SetRemoteEndpoint (senderEndpoint); + if (m_LastSession->GetRemoteEndpoint ().address () == senderEndpoint.address ()) // port might be different + m_LastSession->ProcessHolePunch (buf, len); + else + { + LogPrint (eLogWarning, "SSU2: HolePunch address ", senderEndpoint.address (), + " doesn't match RelayResponse ", m_LastSession->GetRemoteEndpoint ().address ()); + m_LastSession->Done (); + m_LastSession = nullptr; + } + break; + case eSSU2SessionStatePeerTest: + m_LastSession->SetRemoteEndpoint (senderEndpoint); + m_LastSession->ProcessPeerTest (buf, len); + break; + case eSSU2SessionStateHolePunch: + m_LastSession->ProcessFirstIncomingMessage (connID, buf, len); // SessionRequest + break; + case eSSU2SessionStateClosing: + m_LastSession->ProcessData (buf, len, senderEndpoint); // we might receive termintaion block + if (m_LastSession && m_LastSession->GetState () == eSSU2SessionStateClosing) + m_LastSession->RequestTermination (eSSU2TerminationReasonIdleTimeout); // send termination again + break; + case eSSU2SessionStateClosingConfirmed: + case eSSU2SessionStateTerminated: + m_LastSession = nullptr; + break; + default: + LogPrint (eLogWarning, "SSU2: Invalid session state ", (int)m_LastSession->GetState ()); + } + } + else + { + // check pending sessions if it's SessionCreated or Retry + auto it1 = m_PendingOutgoingSessions.find (senderEndpoint); + if (it1 != m_PendingOutgoingSessions.end ()) + { + if (it1->second->GetState () == eSSU2SessionStateSessionRequestSent && + it1->second->ProcessSessionCreated (buf, len)) + { + std::lock_guard l(m_PendingOutgoingSessionsMutex); + m_PendingOutgoingSessions.erase (it1); // we are done with that endpoint + } + else + it1->second->ProcessRetry (buf, len); + } + else if (!i2p::transport::transports.IsInReservedRange(senderEndpoint.address ()) && senderEndpoint.port ()) + { + // assume new incoming session + auto session = std::make_shared (*this); + session->SetRemoteEndpoint (senderEndpoint); + session->ProcessFirstIncomingMessage (connID, buf, len); + } + else + LogPrint (eLogError, "SSU2: Incoming packet received from invalid endpoint ", senderEndpoint); + } + } + + void SSU2Server::Send (const uint8_t * header, size_t headerLen, const uint8_t * payload, size_t payloadLen, + const boost::asio::ip::udp::endpoint& to) + { + if (m_IsThroughProxy) + { + SendThroughProxy (header, headerLen, nullptr, 0, payload, payloadLen, to); + return; + } + + std::vector bufs + { + boost::asio::buffer (header, headerLen), + boost::asio::buffer (payload, payloadLen) + }; + + boost::system::error_code ec; + if (to.address ().is_v6 ()) + { + if (!m_SocketV6.is_open ()) return; + m_SocketV6.send_to (bufs, to, 0, ec); + } + else + { + if (!m_SocketV4.is_open ()) return; + m_SocketV4.send_to (bufs, to, 0, ec); + } + + if (!ec) + i2p::transport::transports.UpdateSentBytes (headerLen + payloadLen); + else + { + LogPrint (ec == boost::asio::error::would_block ? eLogInfo : eLogError, + "SSU2: Send exception: ", ec.message (), " to ", to); + } + } + + void SSU2Server::Send (const uint8_t * header, size_t headerLen, const uint8_t * headerX, size_t headerXLen, + const uint8_t * payload, size_t payloadLen, const boost::asio::ip::udp::endpoint& to) + { + if (m_IsThroughProxy) + { + SendThroughProxy (header, headerLen, headerX, headerXLen, payload, payloadLen, to); + return; + } + + std::vector bufs + { + boost::asio::buffer (header, headerLen), + boost::asio::buffer (headerX, headerXLen), + boost::asio::buffer (payload, payloadLen) + }; + + boost::system::error_code ec; + if (to.address ().is_v6 ()) + { + if (!m_SocketV6.is_open ()) return; + m_SocketV6.send_to (bufs, to, 0, ec); + } + else + { + if (!m_SocketV4.is_open ()) return; + m_SocketV4.send_to (bufs, to, 0, ec); + } + + if (!ec) + i2p::transport::transports.UpdateSentBytes (headerLen + headerXLen + payloadLen); + else + { + LogPrint (ec == boost::asio::error::would_block ? eLogInfo : eLogError, + "SSU2: Send exception: ", ec.message (), " to ", to); + } + } + + bool SSU2Server::CheckPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep, bool peerTest) + { + auto s = FindPendingOutgoingSession (ep); + if (s) + { + if (peerTest) + { + // if peer test requested add it to the list for pending session + auto onEstablished = s->GetOnEstablished (); + if (onEstablished) + s->SetOnEstablished ([s, onEstablished]() + { + onEstablished (); + s->SendPeerTest (); + }); + else + s->SetOnEstablished ([s]() { s->SendPeerTest (); }); + } + return true; + } + return false; + } + + bool SSU2Server::CreateSession (std::shared_ptr router, + std::shared_ptr address, bool peerTest) + { + if (router && address) + { + // check if no session + auto existingSession = FindSession (router->GetIdentHash ()); + if (existingSession) + { + // session with router found, trying to send peer test if requested + if (peerTest && existingSession->IsEstablished ()) + boost::asio::post (GetService (), [existingSession]() { existingSession->SendPeerTest (); }); + return false; + } + // check is no pending session + bool isValidEndpoint = !address->host.is_unspecified () && address->port; + if (isValidEndpoint) + { + if (i2p::transport::transports.IsInReservedRange(address->host)) return false; + if (CheckPendingOutgoingSession (boost::asio::ip::udp::endpoint (address->host, address->port), peerTest)) return false; + } + + auto session = std::make_shared (*this, router, address); + if (!isValidEndpoint && router->HasProfile () && router->GetProfile ()->HasLastEndpoint (address->IsV4 ())) + { + // router doesn't publish endpoint, but we connected before and hole punch might be alive + auto ep = router->GetProfile ()->GetLastEndpoint (); + if (IsConnectedRecently (ep, false)) + { + if (CheckPendingOutgoingSession (ep, peerTest)) return false; + session->SetRemoteEndpoint (ep); + isValidEndpoint = true; + } + } + if (peerTest) + session->SetOnEstablished ([session]() {session->SendPeerTest (); }); + + if (isValidEndpoint) // we know endpoint + boost::asio::post (GetService (), [session]() { session->Connect (); }); + else if (address->UsesIntroducer ()) // we don't know endpoint yet + boost::asio::post (GetService (), std::bind (&SSU2Server::ConnectThroughIntroducer, this, session)); + else + return false; + } + else + return false; + return true; + } + + void SSU2Server::ConnectThroughIntroducer (std::shared_ptr session) + { + if (!session) return; + auto address = session->GetAddress (); + if (!address) return; + session->WaitForIntroduction (); + auto ts = i2p::util::GetSecondsSinceEpoch (); + std::vector indices; int i = 0; + // try to find existing session first + for (auto& it: address->ssu->introducers) + { + if (it.iTag && ts < it.iExp) + { + auto s = FindSession (it.iH); + if (s) + { + auto addr = s->GetAddress (); + if (addr && addr->IsIntroducer ()) + { + s->Introduce (session, it.iTag); + return; + } + } + else + indices.push_back(i); + } + i++; + } + // we have to start a new session to an introducer + std::vector newRouters; + std::shared_ptr r; + std::shared_ptr addr; + uint32_t relayTag = 0; + if (!indices.empty ()) + { + if (indices.size () > 1) + std::shuffle (indices.begin(), indices.end(), m_Rng); + + for (auto ind: indices) + { + const auto& introducer = address->ssu->introducers[ind]; + // introducer is not expired, because in indices + r = i2p::data::netdb.FindRouter (introducer.iH); + if (r) + { + if (r->IsPublishedOn (i2p::context.GetRouterInfo ().GetCompatibleTransports (false) & // outgoing + (i2p::data::RouterInfo::eSSU2V4 | i2p::data::RouterInfo::eSSU2V6))) + { + relayTag = introducer.iTag; + addr = address->IsV6 () ? r->GetSSU2V6Address () : r->GetSSU2V4Address (); + if (addr && addr->IsIntroducer () && !addr->host.is_unspecified () && addr->port && + !i2p::transport::transports.IsInReservedRange(addr->host)) + break; + else + { + // address is invalid or not intrudcer, try another SSU2 address if exists + if (address->IsV4 ()) + { + if (i2p::context.SupportsV6 ()) + addr = r->GetSSU2V6Address (); + } + else + { + if (i2p::context.SupportsV4 ()) + addr = r->GetSSU2V4Address (); + } + if (addr && addr->IsIntroducer () && !addr->host.is_unspecified () && addr->port && + !i2p::transport::transports.IsInReservedRange(addr->host)) + break; + else + { + // all addresses are invalid, try next introducer + relayTag = 0; + addr = nullptr; + r = nullptr; + } + } + } + else + r = nullptr; + } + else if (!i2p::data::IsRouterBanned (introducer.iH)) + newRouters.push_back (introducer.iH); + } + } + if (r) + { + if (relayTag && addr) + { + // introducer and tag found connect to it through SSU2 + auto s = FindPendingOutgoingSession (boost::asio::ip::udp::endpoint (addr->host, addr->port)); + if (!s) + { + s = std::make_shared (*this, r, addr); + s->SetOnEstablished ([session, s, relayTag]() { s->Introduce (session, relayTag); }); + s->Connect (); + } + else + { + auto onEstablished = s->GetOnEstablished (); + if (onEstablished) + s->SetOnEstablished ([session, s, relayTag, onEstablished]() + { + onEstablished (); + s->Introduce (session, relayTag); + }); + else + s->SetOnEstablished ([session, s, relayTag]() {s->Introduce (session, relayTag); }); + } + } + else + session->Done (); + } + else + { + // introducers not found, try to request them + for (auto& it: newRouters) + i2p::data::netdb.RequestDestination (it); + session->Done (); // don't wait for connect timeout + } + } + + bool SSU2Server::StartPeerTest (std::shared_ptr router, bool v4) + { + if (!router) return false; + auto addr = v4 ? router->GetSSU2V4Address () : router->GetSSU2V6Address (); + if (!addr) return false; + auto session = FindSession (router->GetIdentHash ()); + if (session) + { + auto remoteAddr = session->GetAddress (); + if (!remoteAddr || !remoteAddr->IsPeerTesting () || + (v4 && !remoteAddr->IsV4 ()) || (!v4 && !remoteAddr->IsV6 ())) return false; + if (session->IsEstablished ()) + boost::asio::post (GetService (), [session]() { session->SendPeerTest (); }); + else + session->SetOnEstablished ([session]() { session->SendPeerTest (); }); + return true; + } + else + CreateSession (router, addr, true); + return true; + } + + void SSU2Server::ScheduleTermination () + { + m_TerminationTimer.expires_from_now (boost::posix_time::seconds( + SSU2_TERMINATION_CHECK_TIMEOUT + m_Rng () % SSU2_TERMINATION_CHECK_TIMEOUT_VARIANCE)); + m_TerminationTimer.async_wait (std::bind (&SSU2Server::HandleTerminationTimer, + this, std::placeholders::_1)); + } + + void SSU2Server::HandleTerminationTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + + { + std::lock_guard l(m_PendingOutgoingSessionsMutex); + for (auto it = m_PendingOutgoingSessions.begin (); it != m_PendingOutgoingSessions.end ();) + { + if (it->second->IsTerminationTimeoutExpired (ts)) + { + //it->second->Terminate (); + it = m_PendingOutgoingSessions.erase (it); + } + else + it++; + } + } + + for (auto it: m_Sessions) + { + auto state = it.second->GetState (); + if (state == eSSU2SessionStateTerminated || state == eSSU2SessionStateClosing) + it.second->Done (); + else if (it.second->IsTerminationTimeoutExpired (ts)) + { + if (it.second->IsEstablished ()) + it.second->RequestTermination (eSSU2TerminationReasonIdleTimeout); + else + it.second->Done (); + } + else + it.second->CleanUp (ts); + } + + ScheduleTermination (); + } + } + + void SSU2Server::ScheduleCleanup () + { + m_CleanupTimer.expires_from_now (boost::posix_time::seconds(SSU2_CLEANUP_INTERVAL)); + m_CleanupTimer.async_wait (std::bind (&SSU2Server::HandleCleanupTimer, + this, std::placeholders::_1)); + } + + void SSU2Server::HandleCleanupTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + for (auto it = m_Relays.begin (); it != m_Relays.begin ();) + { + if (it->second.expired ()) + it = m_Relays.erase (it); + else + it++; + } + + for (auto it = m_PeerTests.begin (); it != m_PeerTests.end ();) + { + if (ts > it->second.second + SSU2_PEER_TEST_EXPIRATION_TIMEOUT || it->second.first.expired ()) + { + LogPrint (eLogInfo, "SSU2: Peer test nonce ", it->first, " was not responded in ", SSU2_PEER_TEST_EXPIRATION_TIMEOUT, " seconds or session invalid. Deleted"); + it = m_PeerTests.erase (it); + } + else + it++; + } + + for (auto it = m_IncomingTokens.begin (); it != m_IncomingTokens.end (); ) + { + if (ts > it->second.second) + it = m_IncomingTokens.erase (it); + else + it++; + } + + for (auto it = m_OutgoingTokens.begin (); it != m_OutgoingTokens.end (); ) + { + if (ts > it->second.second) + it = m_OutgoingTokens.erase (it); + else + it++; + } + + for (auto it = m_ConnectedRecently.begin (); it != m_ConnectedRecently.end (); ) + { + if (ts > it->second + SSU2_MAX_HOLE_PUNCH_EXPIRATION) + it = m_ConnectedRecently.erase (it); + else + it++; + } + + for (auto it = m_RequestedPeerTests.begin (); it != m_RequestedPeerTests.end ();) + { + if (ts > it->second.second + SSU2_PEER_TEST_EXPIRATION_TIMEOUT) + it = m_RequestedPeerTests.erase (it); + else + it++; + } + + { + std::lock_guard l(m_SessionsByRouterHashMutex); + for (auto it = m_SessionsByRouterHash.begin (); it != m_SessionsByRouterHash.begin ();) + { + if (it->second.expired ()) + it = m_SessionsByRouterHash.erase (it); + else + it++; + } + } + + m_PacketsPool.CleanUpMt (); + m_SentPacketsPool.CleanUp (); + m_IncompleteMessagesPool.CleanUp (); + m_FragmentsPool.CleanUp (); + ScheduleCleanup (); + } + } + + void SSU2Server::ScheduleResend (bool more) + { + m_ResendTimer.expires_from_now (boost::posix_time::milliseconds (more ? + (SSU2_RESEND_CHECK_MORE_TIMEOUT + m_Rng () % SSU2_RESEND_CHECK_MORE_TIMEOUT_VARIANCE): + (SSU2_RESEND_CHECK_TIMEOUT + m_Rng () % SSU2_RESEND_CHECK_TIMEOUT_VARIANCE))); + m_ResendTimer.async_wait (std::bind (&SSU2Server::HandleResendTimer, + this, std::placeholders::_1)); + } + + void SSU2Server::HandleResendTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + size_t resentPacketsNum = 0; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + for (auto it: m_Sessions) + { + if (ts >= it.second->GetLastResendTime () + SSU2_RESEND_CHECK_TIMEOUT) + resentPacketsNum += it.second->Resend (ts); + if (resentPacketsNum > SSU2_MAX_RESEND_PACKETS) break; + } + for (auto it: m_PendingOutgoingSessions) + it.second->Resend (ts); + ScheduleResend (resentPacketsNum > SSU2_MAX_RESEND_PACKETS); + } + } + + void SSU2Server::UpdateOutgoingToken (const boost::asio::ip::udp::endpoint& ep, uint64_t token, uint32_t exp) + { + m_OutgoingTokens[ep] = {token, exp}; + } + + uint64_t SSU2Server::FindOutgoingToken (const boost::asio::ip::udp::endpoint& ep) + { + auto it = m_OutgoingTokens.find (ep); + if (it != m_OutgoingTokens.end ()) + { + if (i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_THRESHOLD > it->second.second) + { + // token expired + m_OutgoingTokens.erase (it); + return 0; + } + return it->second.first; + } + return 0; + } + + uint64_t SSU2Server::GetIncomingToken (const boost::asio::ip::udp::endpoint& ep) + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + auto it = m_IncomingTokens.find (ep); + if (it != m_IncomingTokens.end ()) + { + if (ts + SSU2_TOKEN_EXPIRATION_THRESHOLD <= it->second.second) + return it->second.first; + else // token expired + m_IncomingTokens.erase (it); + } + uint64_t token; + RAND_bytes ((uint8_t *)&token, 8); + if (!token) token = 1; // token can't be zero + m_IncomingTokens.try_emplace (ep, token, uint32_t(ts + SSU2_TOKEN_EXPIRATION_TIMEOUT)); + return token; + } + + std::pair SSU2Server::NewIncomingToken (const boost::asio::ip::udp::endpoint& ep) + { + uint64_t token; + RAND_bytes ((uint8_t *)&token, 8); + if (!token) token = 1; // token can't be zero + uint32_t expires = i2p::util::GetSecondsSinceEpoch () + SSU2_NEXT_TOKEN_EXPIRATION_TIMEOUT; + auto [it, inserted] = m_IncomingTokens.try_emplace (ep, token, expires); + if (!inserted) + it->second = { token, expires }; // override + return it->second; + } + + std::vector > SSU2Server::FindIntroducers (int maxNumIntroducers, + bool v4, const std::unordered_set& excluded) + { + std::vector > ret; + if (maxNumIntroducers <= 0 || m_Sessions.empty ()) return ret; + + std::vector > eligible; + eligible.reserve (m_Sessions.size ()/2); + auto ts = i2p::util::GetSecondsSinceEpoch (); + for (const auto& s : m_Sessions) + { + if (s.second->IsEstablished () && (s.second->GetRelayTag () && s.second->IsOutgoing ()) && + ts < s.second->GetCreationTime () + SSU2_TO_INTRODUCER_SESSION_DURATION/2 && + !excluded.count (s.second->GetRemoteIdentity ()->GetIdentHash ()) && + ((v4 && (s.second->GetRemoteTransports () & i2p::data::RouterInfo::eSSU2V4)) || + (!v4 && (s.second->GetRemoteTransports () & i2p::data::RouterInfo::eSSU2V6)))) + eligible.push_back (s.second); + } + + if (eligible.size () <= (size_t)maxNumIntroducers) + return eligible; + else + std::sample (eligible.begin(), eligible.end(), std::back_inserter(ret), maxNumIntroducers, m_Rng); + return ret; + } + + void SSU2Server::UpdateIntroducers (bool v4) + { + uint32_t ts = i2p::util::GetSecondsSinceEpoch (); + std::list > newList, impliedList; + auto& introducers = v4 ? m_Introducers : m_IntroducersV6; + std::unordered_set excluded; + for (const auto& [ident, tag] : introducers) + { + std::shared_ptr session = FindSession (ident); + if (session) + excluded.insert (ident); + if (session) + { + if (session->IsEstablished () && session->GetRelayTag () && session->IsOutgoing () && // still session with introducer? + ts < session->GetCreationTime () + SSU2_TO_INTRODUCER_SESSION_EXPIRATION) + { + session->SendKeepAlive (); + if (ts < session->GetCreationTime () + SSU2_TO_INTRODUCER_SESSION_DURATION) + { + newList.push_back ({ident, session->GetRelayTag ()}); + if (tag != session->GetRelayTag ()) + { + LogPrint (eLogDebug, "SSU2: Introducer session to ", session->GetIdentHashBase64() , " was replaced. iTag ", tag, "->", session->GetRelayTag ()); + i2p::context.UpdateSSU2Introducer (ident, v4, session->GetRelayTag (), + session->GetCreationTime () + SSU2_TO_INTRODUCER_SESSION_EXPIRATION); + } + } + else + { + impliedList.push_back ({ident, session->GetRelayTag ()}); // keep in introducers list, but not publish + session = nullptr; + } + } + else + session = nullptr; + } + + if (!session) + i2p::context.RemoveSSU2Introducer (ident, v4); + } + int numOldSessions = 0; + if (newList.size () < SSU2_MAX_NUM_INTRODUCERS) + { + auto sessions = FindIntroducers (SSU2_MAX_NUM_INTRODUCERS - newList.size (), v4, excluded); + if (sessions.empty () && !impliedList.empty ()) + { + LogPrint (eLogDebug, "SSU2: No new introducers found. Trying to reuse existing"); + for (const auto& it : impliedList) + { + auto session = FindSession (it.first); + if (session) + { + if (std::find_if (newList.begin (), newList.end (), + [&ident = it.first](const auto& s){ return ident == s.first; }) == newList.end ()) + { + sessions.push_back (session); + numOldSessions++; + } + } + } + impliedList.clear (); + } + + for (const auto& it : sessions) + { + uint32_t tag = it->GetRelayTag (); + uint32_t exp = it->GetCreationTime () + SSU2_TO_INTRODUCER_SESSION_EXPIRATION; + if (!tag && ts >= exp) + continue; // don't publish expired introducer + i2p::data::RouterInfo::Introducer introducer; + introducer.iTag = tag; + introducer.iH = it->GetRemoteIdentity ()->GetIdentHash (); + introducer.iExp = exp; + excluded.insert (it->GetRemoteIdentity ()->GetIdentHash ()); + if (i2p::context.AddSSU2Introducer (introducer, v4)) + { + LogPrint (eLogDebug, "SSU2: Introducer added ", it->GetRelayTag (), " at ", + i2p::data::GetIdentHashAbbreviation (it->GetRemoteIdentity ()->GetIdentHash ())); + newList.push_back ({ it->GetRemoteIdentity ()->GetIdentHash (), tag }); + it->SendKeepAlive (); + if (newList.size () >= SSU2_MAX_NUM_INTRODUCERS) break; + } + } + } + introducers = newList; + + if (introducers.size () < SSU2_MAX_NUM_INTRODUCERS || numOldSessions) + { + // we need to create more sessions with relay tag + + // exclude all existing sessions + excluded.clear (); + { + std::lock_guard l(m_SessionsByRouterHashMutex); + for (const auto& [ident, s] : m_SessionsByRouterHash) + excluded.insert (ident); + } + + // session about to expire are not counted + for (auto i = introducers.size (); i < SSU2_MAX_NUM_INTRODUCERS + numOldSessions; i++) + { + auto introducer = i2p::data::netdb.GetRandomSSU2Introducer (v4, excluded); + if (introducer) + { + auto address = v4 ? introducer->GetSSU2V4Address () : introducer->GetSSU2V6Address (); + if (address) + { + CreateSession (introducer, address); + excluded.insert (introducer->GetIdentHash ()); + } + } + else + { + LogPrint (eLogDebug, "SSU2: Can't find more introducers"); + break; + } + } + } + introducers.splice (introducers.end (), impliedList); // insert non-published, but non-expired introducers back + } + + void SSU2Server::ScheduleIntroducersUpdateTimer () + { + if (m_IsPublished) + { + m_IntroducersUpdateTimer.expires_from_now (boost::posix_time::seconds( + SSU2_KEEP_ALIVE_INTERVAL + m_Rng () % SSU2_KEEP_ALIVE_INTERVAL_VARIANCE)); + m_IntroducersUpdateTimer.async_wait (std::bind (&SSU2Server::HandleIntroducersUpdateTimer, + this, std::placeholders::_1, true)); + } + } + + void SSU2Server::RescheduleIntroducersUpdateTimer () + { + if (m_IsPublished) + { + m_IntroducersUpdateTimer.cancel (); + i2p::context.ClearSSU2Introducers (true); + m_Introducers.clear (); + m_IntroducersUpdateTimer.expires_from_now (boost::posix_time::seconds( + (SSU2_KEEP_ALIVE_INTERVAL + m_Rng () % SSU2_KEEP_ALIVE_INTERVAL_VARIANCE)/2)); + m_IntroducersUpdateTimer.async_wait (std::bind (&SSU2Server::HandleIntroducersUpdateTimer, + this, std::placeholders::_1, true)); + } + } + + void SSU2Server::ScheduleIntroducersUpdateTimerV6 () + { + if (m_IsPublished) + { + m_IntroducersUpdateTimerV6.expires_from_now (boost::posix_time::seconds( + SSU2_KEEP_ALIVE_INTERVAL + m_Rng () % SSU2_KEEP_ALIVE_INTERVAL_VARIANCE)); + m_IntroducersUpdateTimerV6.async_wait (std::bind (&SSU2Server::HandleIntroducersUpdateTimer, + this, std::placeholders::_1, false)); + } + } + + void SSU2Server::RescheduleIntroducersUpdateTimerV6 () + { + if (m_IsPublished) + { + m_IntroducersUpdateTimerV6.cancel (); + i2p::context.ClearSSU2Introducers (false); + m_IntroducersV6.clear (); + m_IntroducersUpdateTimerV6.expires_from_now (boost::posix_time::seconds( + (SSU2_KEEP_ALIVE_INTERVAL + m_Rng () % SSU2_KEEP_ALIVE_INTERVAL_VARIANCE)/2)); + m_IntroducersUpdateTimerV6.async_wait (std::bind (&SSU2Server::HandleIntroducersUpdateTimer, + this, std::placeholders::_1, false)); + } + } + + void SSU2Server::HandleIntroducersUpdateTimer (const boost::system::error_code& ecode, bool v4) + { + if (ecode != boost::asio::error::operation_aborted) + { + // timeout expired + if (v4) + { + if (i2p::context.GetTesting ()) + { + // we still don't know if we need introducers + ScheduleIntroducersUpdateTimer (); + return; + } + if (i2p::context.GetStatus () != eRouterStatusFirewalled) + { + // we don't need introducers + i2p::context.ClearSSU2Introducers (true); + m_Introducers.clear (); + return; + } + // we are firewalled + auto addr = i2p::context.GetRouterInfo ().GetSSU2V4Address (); + if (addr && addr->ssu && addr->ssu->introducers.empty ()) + i2p::context.SetUnreachable (true, false); // v4 + + UpdateIntroducers (true); + ScheduleIntroducersUpdateTimer (); + } + else + { + if (i2p::context.GetTestingV6 ()) + { + // we still don't know if we need introducers + ScheduleIntroducersUpdateTimerV6 (); + return; + } + if (i2p::context.GetStatusV6 () != eRouterStatusFirewalled) + { + // we don't need introducers + i2p::context.ClearSSU2Introducers (false); + m_IntroducersV6.clear (); + return; + } + // we are firewalled + auto addr = i2p::context.GetRouterInfo ().GetSSU2V6Address (); + if (addr && addr->ssu && addr->ssu->introducers.empty ()) + i2p::context.SetUnreachable (false, true); // v6 + + UpdateIntroducers (false); + ScheduleIntroducersUpdateTimerV6 (); + } + } + } + + bool SSU2Server::AEADChaCha20Poly1305Encrypt (const uint8_t * msg, size_t msgLen, + const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return m_Encryptor.Encrypt (msg, msgLen, ad, adLen, key, nonce, buf, len); + } + + bool SSU2Server::AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, + const uint8_t * ad, size_t adLen, const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len) + { + return m_Decryptor.Decrypt (msg, msgLen, ad, adLen, key, nonce, buf, len); + } + + void SSU2Server::ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out) + { + m_ChaCha20 (msg, msgLen, key, nonce, out); + } + + void SSU2Server::SendThroughProxy (const uint8_t * header, size_t headerLen, const uint8_t * headerX, size_t headerXLen, + const uint8_t * payload, size_t payloadLen, const boost::asio::ip::udp::endpoint& to) + { + if (!m_ProxyRelayEndpoint) return; + size_t requestHeaderSize = 0; + memset (m_UDPRequestHeader, 0, 3); + if (to.address ().is_v6 ()) + { + m_UDPRequestHeader[3] = SOCKS5_ATYP_IPV6; + memcpy (m_UDPRequestHeader + 4, to.address ().to_v6().to_bytes().data(), 16); + requestHeaderSize = SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE; + } + else + { + m_UDPRequestHeader[3] = SOCKS5_ATYP_IPV4; + memcpy (m_UDPRequestHeader + 4, to.address ().to_v4().to_bytes().data(), 4); + requestHeaderSize = SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE; + } + htobe16buf (m_UDPRequestHeader + requestHeaderSize - 2, to.port ()); + + std::vector bufs; + bufs.push_back (boost::asio::buffer (m_UDPRequestHeader, requestHeaderSize)); + bufs.push_back (boost::asio::buffer (header, headerLen)); + if (headerX) bufs.push_back (boost::asio::buffer (headerX, headerXLen)); + bufs.push_back (boost::asio::buffer (payload, payloadLen)); + + boost::system::error_code ec; + m_SocketV4.send_to (bufs, *m_ProxyRelayEndpoint, 0, ec); // TODO: implement ipv6 proxy + if (!ec) + i2p::transport::transports.UpdateSentBytes (headerLen + payloadLen); + else + LogPrint (eLogError, "SSU2: Send exception: ", ec.message (), " to ", to); + } + + void SSU2Server::ProcessNextPacketFromProxy (uint8_t * buf, size_t len) + { + if (buf[2]) // FRAG + { + LogPrint (eLogWarning, "SSU2: Proxy packet fragmentation is not supported"); + return; + } + size_t offset = 0; + boost::asio::ip::udp::endpoint ep; + switch (buf[3]) // ATYP + { + case SOCKS5_ATYP_IPV4: + { + offset = SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE; + if (offset > len) return; + boost::asio::ip::address_v4::bytes_type bytes; + memcpy (bytes.data (), buf + 4, 4); + uint16_t port = bufbe16toh (buf + 8); + ep = boost::asio::ip::udp::endpoint (boost::asio::ip::address_v4 (bytes), port); + break; + } + case SOCKS5_ATYP_IPV6: + { + offset = SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE; + if (offset > len) return; + boost::asio::ip::address_v6::bytes_type bytes; + memcpy (bytes.data (), buf + 4, 16); + uint16_t port = bufbe16toh (buf + 20); + ep = boost::asio::ip::udp::endpoint (boost::asio::ip::address_v6 (bytes), port); + break; + } + default: + { + LogPrint (eLogWarning, "SSU2: Unknown ATYP ", (int)buf[3], " from proxy relay"); + return; + } + } + ProcessNextPacket (buf + offset, len - offset, ep); + } + + void SSU2Server::ConnectToProxy () + { + if (!m_ProxyEndpoint) return; + m_UDPAssociateSocket.reset (new boost::asio::ip::tcp::socket (m_ReceiveService.GetService ())); + m_UDPAssociateSocket->async_connect (*m_ProxyEndpoint, + [this] (const boost::system::error_code& ecode) + { + if (ecode) + { + LogPrint (eLogError, "SSU2: Can't connect to proxy ", *m_ProxyEndpoint, " ", ecode.message ()); + m_UDPAssociateSocket.reset (nullptr); + ReconnectToProxy (); + } + else + HandshakeWithProxy (); + }); + } + + void SSU2Server::HandshakeWithProxy () + { + if (!m_UDPAssociateSocket) return; + m_UDPRequestHeader[0] = SOCKS5_VER; + m_UDPRequestHeader[1] = 1; // 1 method + m_UDPRequestHeader[2] = 0; // no authentication + boost::asio::async_write (*m_UDPAssociateSocket, boost::asio::buffer (m_UDPRequestHeader, 3), boost::asio::transfer_all(), + [this] (const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + (void) bytes_transferred; + if (ecode) + { + LogPrint(eLogError, "SSU2: Proxy write error ", ecode.message()); + m_UDPAssociateSocket.reset (nullptr); + ReconnectToProxy (); + } + else + ReadHandshakeWithProxyReply (); + }); + } + + void SSU2Server::ReadHandshakeWithProxyReply () + { + if (!m_UDPAssociateSocket) return; + boost::asio::async_read (*m_UDPAssociateSocket, boost::asio::buffer (m_UDPRequestHeader, 2), boost::asio::transfer_all(), + [this] (const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + (void) bytes_transferred; + if (ecode) + { + LogPrint(eLogError, "SSU2: Proxy read error ", ecode.message()); + m_UDPAssociateSocket.reset (nullptr); + ReconnectToProxy (); + } + else + { + if (m_UDPRequestHeader[0] == SOCKS5_VER && !m_UDPRequestHeader[1]) + SendUDPAssociateRequest (); + else + { + LogPrint(eLogError, "SSU2: Invalid proxy reply"); + m_UDPAssociateSocket.reset (nullptr); + } + } + }); + } + + void SSU2Server::SendUDPAssociateRequest () + { + if (!m_UDPAssociateSocket) return; + m_UDPRequestHeader[0] = SOCKS5_VER; + m_UDPRequestHeader[1] = SOCKS5_CMD_UDP_ASSOCIATE; + m_UDPRequestHeader[2] = 0; // RSV + m_UDPRequestHeader[3] = SOCKS5_ATYP_IPV4; // TODO: implement ipv6 proxy + memset (m_UDPRequestHeader + 4, 0, 6); // address and port all zeros + boost::asio::async_write (*m_UDPAssociateSocket, boost::asio::buffer (m_UDPRequestHeader, SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE), boost::asio::transfer_all(), + [this] (const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + (void) bytes_transferred; + if (ecode) + { + LogPrint(eLogError, "SSU2: Proxy write error ", ecode.message()); + m_UDPAssociateSocket.reset (nullptr); + ReconnectToProxy (); + } + else + ReadUDPAssociateReply (); + }); + } + + void SSU2Server::ReadUDPAssociateReply () + { + if (!m_UDPAssociateSocket) return; + boost::asio::async_read (*m_UDPAssociateSocket, boost::asio::buffer (m_UDPRequestHeader, SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE), boost::asio::transfer_all(), + [this] (const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + (void) bytes_transferred; + if (ecode) + { + LogPrint(eLogError, "SSU2: Proxy read error ", ecode.message()); + m_UDPAssociateSocket.reset (nullptr); + ReconnectToProxy (); + } + else + { + if (m_UDPRequestHeader[0] == SOCKS5_VER && !m_UDPRequestHeader[1]) + { + if (m_UDPRequestHeader[3] == SOCKS5_ATYP_IPV4) + { + boost::asio::ip::address_v4::bytes_type bytes; + memcpy (bytes.data (), m_UDPRequestHeader + 4, 4); + uint16_t port = bufbe16toh (m_UDPRequestHeader + 8); + m_ProxyRelayEndpoint.reset (new boost::asio::ip::udp::endpoint (boost::asio::ip::address_v4 (bytes), port)); + m_SocketV4.open (boost::asio::ip::udp::v4 ()); + Receive (m_SocketV4); + ReadUDPAssociateSocket (); + } + else + { + LogPrint(eLogError, "SSU2: Proxy UDP associate unsupported ATYP ", (int)m_UDPRequestHeader[3]); + m_UDPAssociateSocket.reset (nullptr); + } + } + else + { + LogPrint(eLogError, "SSU2: Proxy UDP associate error ", (int)m_UDPRequestHeader[1]); + m_UDPAssociateSocket.reset (nullptr); + } + } + }); + } + + void SSU2Server::ReadUDPAssociateSocket () + { + if (!m_UDPAssociateSocket) return; + m_UDPAssociateSocket->async_read_some (boost::asio::buffer (m_UDPRequestHeader, 1), + [this] (const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + (void) bytes_transferred; + if (ecode) + { + LogPrint(eLogWarning, "SSU2: Proxy UDP Associate socket error ", ecode.message()); + m_UDPAssociateSocket.reset (nullptr); + m_ProxyRelayEndpoint.reset (nullptr); + m_SocketV4.close (); + ConnectToProxy (); // try to reconnect immediately + } + else + ReadUDPAssociateSocket (); + }); + } + + void SSU2Server::ReconnectToProxy () + { + LogPrint(eLogInfo, "SSU2: Reconnect to proxy after ", SSU2_PROXY_CONNECT_RETRY_TIMEOUT, " seconds"); + if (m_ProxyConnectRetryTimer) + m_ProxyConnectRetryTimer->cancel (); + else + m_ProxyConnectRetryTimer.reset (new boost::asio::deadline_timer (m_ReceiveService.GetService ())); + m_ProxyConnectRetryTimer->expires_from_now (boost::posix_time::seconds (SSU2_PROXY_CONNECT_RETRY_TIMEOUT)); + m_ProxyConnectRetryTimer->async_wait ( + [this](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + m_UDPAssociateSocket.reset (nullptr); + m_ProxyRelayEndpoint.reset (nullptr); + LogPrint(eLogInfo, "SSU2: Reconnecting to proxy"); + ConnectToProxy (); + } + }); + } + + bool SSU2Server::SetProxy (const std::string& address, uint16_t port) + { + boost::system::error_code ecode; + auto addr = boost::asio::ip::make_address (address, ecode); + if (!ecode && !addr.is_unspecified () && port) + { + m_IsThroughProxy = true; + m_ProxyEndpoint.reset (new boost::asio::ip::tcp::endpoint (addr, port)); + } + else + { + if (ecode) + LogPrint (eLogError, "SSU2: Invalid proxy address ", address, " ", ecode.message()); + return false; + } + return true; + } +} +} diff --git a/libi2pd/SSU2.h b/libi2pd/SSU2.h new file mode 100644 index 00000000..a8598ce3 --- /dev/null +++ b/libi2pd/SSU2.h @@ -0,0 +1,228 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef SSU2_H__ +#define SSU2_H__ + +#include +#include +#include +#include +#include +#include +#include +#include "util.h" +#include "SSU2Session.h" +#include "SSU2OutOfSession.h" +#include "Socks5.h" + +namespace i2p +{ +namespace transport +{ + const int SSU2_TERMINATION_CHECK_TIMEOUT = 23; // in seconds + const int SSU2_TERMINATION_CHECK_TIMEOUT_VARIANCE = 5; // in seconds + const int SSU2_CLEANUP_INTERVAL = 72; // in seconds + const int SSU2_RESEND_CHECK_TIMEOUT = 40; // in milliseconds + const int SSU2_RESEND_CHECK_TIMEOUT_VARIANCE = 10; // in milliseconds + const int SSU2_RESEND_CHECK_MORE_TIMEOUT = 4; // in milliseconds + const int SSU2_RESEND_CHECK_MORE_TIMEOUT_VARIANCE = 9; // in milliseconds + const size_t SSU2_MAX_RESEND_PACKETS = 128; // packets to resend at the time + const uint64_t SSU2_SOCKET_MIN_BUFFER_SIZE = 128 * 1024; + const uint64_t SSU2_SOCKET_MAX_BUFFER_SIZE = 4 * 1024 * 1024; + const size_t SSU2_MAX_NUM_INTRODUCERS = 3; + const size_t SSU2_MIN_RECEIVED_PACKET_SIZE = 40; // 16 byte short header + 8 byte minimum payload + 16 byte MAC + const size_t SSU2_MAX_RECEIVED_QUEUE_SIZE = 2500; // in packets + const int SSU2_TO_INTRODUCER_SESSION_DURATION = 3600; // 1 hour + const int SSU2_TO_INTRODUCER_SESSION_EXPIRATION = 4800; // 80 minutes + const int SSU2_KEEP_ALIVE_INTERVAL = 15; // in seconds + const int SSU2_KEEP_ALIVE_INTERVAL_VARIANCE = 4; // in seconds + const int SSU2_PROXY_CONNECT_RETRY_TIMEOUT = 30; // in seconds + const int SSU2_MIN_HOLE_PUNCH_EXPIRATION = 30; // in seconds + const int SSU2_MAX_HOLE_PUNCH_EXPIRATION = 160; // in seconds + const size_t SSU2_MAX_NUM_PACKETS_PER_BATCH = 64; + + class SSU2Server: private i2p::util::RunnableServiceWithWork + { + struct Packet + { + uint8_t buf[SSU2_MAX_PACKET_SIZE]; + size_t len; + boost::asio::ip::udp::endpoint from; + }; + + class ReceiveService: public i2p::util::RunnableService + { + public: + + ReceiveService (const std::string& name): RunnableService (name) {}; + auto& GetService () { return GetIOService (); }; + void Start () { StartIOService (); }; + void Stop () { StopIOService (); }; + }; + + public: + + SSU2Server (); + ~SSU2Server () {}; + + void Start (); + void Stop (); + auto& GetService () { return GetIOService (); }; + void SetLocalAddress (const boost::asio::ip::address& localAddress); + bool SetProxy (const std::string& address, uint16_t port); + bool UsesProxy () const { return m_IsThroughProxy; }; + bool IsSupported (const boost::asio::ip::address& addr) const; + uint16_t GetPort (bool v4) const; + bool IsConnectedRecently (const boost::asio::ip::udp::endpoint& ep, bool max = true); + void AddConnectedRecently (const boost::asio::ip::udp::endpoint& ep, uint64_t ts); + std::mt19937& GetRng () { return m_Rng; } + bool AEADChaCha20Poly1305Encrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); + bool AEADChaCha20Poly1305Decrypt (const uint8_t * msg, size_t msgLen, const uint8_t * ad, size_t adLen, + const uint8_t * key, const uint8_t * nonce, uint8_t * buf, size_t len); + void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out); + bool IsMaxNumIntroducers (bool v4) const { return (v4 ? m_Introducers.size () : m_IntroducersV6.size ()) >= SSU2_MAX_NUM_INTRODUCERS; } + bool IsSyncClockFromPeers () const { return m_IsSyncClockFromPeers; }; + void AdjustTimeOffset (int64_t offset, std::shared_ptr from); + + bool AddSession (std::shared_ptr session); + void RemoveSession (uint64_t connID); + void RequestRemoveSession (uint64_t connID); + void AddSessionByRouterHash (std::shared_ptr session); + bool AddPendingOutgoingSession (std::shared_ptr session); + void RemovePendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep); + std::shared_ptr FindSession (const i2p::data::IdentHash& ident); + std::shared_ptr FindPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep) const; + std::shared_ptr GetRandomPeerTestSession (i2p::data::RouterInfo::CompatibleTransports remoteTransports, + const i2p::data::IdentHash& excluded); + + void AddRelay (uint32_t tag, std::shared_ptr relay); + void RemoveRelay (uint32_t tag); + std::shared_ptr FindRelaySession (uint32_t tag); + + bool AddPeerTest (uint32_t nonce, std::shared_ptr aliceSession, uint64_t ts); + std::shared_ptr GetPeerTest (uint32_t nonce); + + bool AddRequestedPeerTest (uint32_t nonce, std::shared_ptr session, uint64_t ts); + std::shared_ptr GetRequestedPeerTest (uint32_t nonce); + + void Send (const uint8_t * header, size_t headerLen, const uint8_t * payload, size_t payloadLen, + const boost::asio::ip::udp::endpoint& to); + void Send (const uint8_t * header, size_t headerLen, const uint8_t * headerX, size_t headerXLen, + const uint8_t * payload, size_t payloadLen, const boost::asio::ip::udp::endpoint& to); + + bool CreateSession (std::shared_ptr router, + std::shared_ptr address, bool peerTest = false); + bool StartPeerTest (std::shared_ptr router, bool v4); + + void UpdateOutgoingToken (const boost::asio::ip::udp::endpoint& ep, uint64_t token, uint32_t exp); + uint64_t FindOutgoingToken (const boost::asio::ip::udp::endpoint& ep); + uint64_t GetIncomingToken (const boost::asio::ip::udp::endpoint& ep); + std::pair NewIncomingToken (const boost::asio::ip::udp::endpoint& ep); + + void RescheduleIntroducersUpdateTimer (); + void RescheduleIntroducersUpdateTimerV6 (); + + i2p::util::MemoryPool& GetSentPacketsPool () { return m_SentPacketsPool; }; + i2p::util::MemoryPool& GetIncompleteMessagesPool () { return m_IncompleteMessagesPool; }; + i2p::util::MemoryPool& GetFragmentsPool () { return m_FragmentsPool; }; + + private: + + boost::asio::ip::udp::socket& OpenSocket (const boost::asio::ip::udp::endpoint& localEndpoint); + void Receive (boost::asio::ip::udp::socket& socket); + void HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred, + Packet * packet, boost::asio::ip::udp::socket& socket); + void HandleReceivedPackets (std::list&& packets); + void ProcessNextPacket (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); + void InsertToReceivedPacketsQueue (Packet * packet); + void InsertToReceivedPacketsQueue (std::list& packets); + void HandleReceivedPacketsQueue (); + + void ScheduleTermination (); + void HandleTerminationTimer (const boost::system::error_code& ecode); + + void ScheduleCleanup (); + void HandleCleanupTimer (const boost::system::error_code& ecode); + + void ScheduleResend (bool more); + void HandleResendTimer (const boost::system::error_code& ecode); + + bool CheckPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep, bool peerTest); + void ConnectThroughIntroducer (std::shared_ptr session); + std::vector > FindIntroducers (int maxNumIntroducers, + bool v4, const std::unordered_set& excluded); + void UpdateIntroducers (bool v4); + void ScheduleIntroducersUpdateTimer (); + void HandleIntroducersUpdateTimer (const boost::system::error_code& ecode, bool v4); + void ScheduleIntroducersUpdateTimerV6 (); + + void SendThroughProxy (const uint8_t * header, size_t headerLen, const uint8_t * headerX, size_t headerXLen, + const uint8_t * payload, size_t payloadLen, const boost::asio::ip::udp::endpoint& to); + void ProcessNextPacketFromProxy (uint8_t * buf, size_t len); + void ConnectToProxy (); + void ReconnectToProxy (); + void HandshakeWithProxy (); + void ReadHandshakeWithProxyReply (); + void SendUDPAssociateRequest (); + void ReadUDPAssociateReply (); + void ReadUDPAssociateSocket (); // handle if closed by peer + + private: + + ReceiveService m_ReceiveService; + boost::asio::ip::udp::socket m_SocketV4, m_SocketV6; + boost::asio::ip::address m_AddressV4, m_AddressV6; + std::unordered_map > m_Sessions; + std::unordered_map > m_SessionsByRouterHash; + mutable std::mutex m_SessionsByRouterHashMutex; + std::map > m_PendingOutgoingSessions; + mutable std::mutex m_PendingOutgoingSessionsMutex; + std::map > m_IncomingTokens, m_OutgoingTokens; // remote endpoint -> (token, expires in seconds) + std::unordered_map > m_Relays; // we are introducer, relay tag -> session + std::unordered_map, uint64_t > > m_PeerTests; // nonce->(Alice, timestamp). We are Bob + std::list > m_Introducers, m_IntroducersV6; // introducers we are connected to + i2p::util::MemoryPoolMt m_PacketsPool; + i2p::util::MemoryPool m_SentPacketsPool; + i2p::util::MemoryPool m_IncompleteMessagesPool; + i2p::util::MemoryPool m_FragmentsPool; + boost::asio::deadline_timer m_TerminationTimer, m_CleanupTimer, m_ResendTimer, + m_IntroducersUpdateTimer, m_IntroducersUpdateTimerV6; + std::shared_ptr m_LastSession; + bool m_IsPublished; // if we maintain introducers + bool m_IsSyncClockFromPeers; + int64_t m_PendingTimeOffset; // during peer test + std::shared_ptr m_PendingTimeOffsetFrom; + std::mt19937 m_Rng; + std::map m_ConnectedRecently; // endpoint -> last activity time in seconds + mutable std::mutex m_ConnectedRecentlyMutex; + std::unordered_map, uint64_t > > m_RequestedPeerTests; // nonce->(Alice, timestamp) + std::list m_ReceivedPacketsQueue; + mutable std::mutex m_ReceivedPacketsQueueMutex; + i2p::crypto::AEADChaCha20Poly1305Encryptor m_Encryptor; + i2p::crypto::AEADChaCha20Poly1305Decryptor m_Decryptor; + i2p::crypto::ChaCha20Context m_ChaCha20; + + // proxy + bool m_IsThroughProxy; + uint8_t m_UDPRequestHeader[SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE]; + std::unique_ptr m_ProxyEndpoint; + std::unique_ptr m_UDPAssociateSocket; + std::unique_ptr m_ProxyRelayEndpoint; + std::unique_ptr m_ProxyConnectRetryTimer; + + public: + + // for HTTP/I2PControl + const decltype(m_Sessions)& GetSSU2Sessions () const { return m_Sessions; }; + }; +} +} + +#endif diff --git a/libi2pd/SSU2OutOfSession.cpp b/libi2pd/SSU2OutOfSession.cpp new file mode 100644 index 00000000..3760e329 --- /dev/null +++ b/libi2pd/SSU2OutOfSession.cpp @@ -0,0 +1,345 @@ +/* +* Copyright (c) 2024-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include "Log.h" +#include "SSU2.h" +#include "SSU2OutOfSession.h" + +namespace i2p +{ +namespace transport +{ + SSU2PeerTestSession::SSU2PeerTestSession (SSU2Server& server, uint64_t sourceConnID, uint64_t destConnID): + SSU2Session (server, nullptr, nullptr, false), + m_MsgNumReceived (0), m_NumResends (0),m_IsConnectedRecently (false), m_IsStatusChanged (false), + m_PeerTestResendTimer (server.GetService ()) + { + if (!sourceConnID) sourceConnID = ~destConnID; + if (!destConnID) destConnID = ~sourceConnID; + SetSourceConnID (sourceConnID); + SetDestConnID (destConnID); + SetState (eSSU2SessionStatePeerTest); + SetTerminationTimeout (SSU2_PEER_TEST_EXPIRATION_TIMEOUT); + } + + bool SSU2PeerTestSession::ProcessPeerTest (uint8_t * buf, size_t len) + { + // we are Alice or Charlie, msgs 5,6,7 + Header header; + memcpy (header.buf, buf, 16); + header.ll[0] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 24)); + header.ll[1] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 12)); + if (header.h.type != eSSU2PeerTest) + { + LogPrint (eLogWarning, "SSU2: Unexpected message type ", (int)header.h.type, " instead ", (int)eSSU2PeerTest); + return false; + } + if (len < 48) + { + LogPrint (eLogWarning, "SSU2: PeerTest message too short ", len); + return false; + } + uint8_t nonce[12] = {0}; + uint64_t headerX[2]; // sourceConnID, token + GetServer ().ChaCha20 (buf + 16, 16, i2p::context.GetSSU2IntroKey (), nonce, (uint8_t *)headerX); + SetDestConnID (headerX[0]); + // decrypt and handle payload + uint8_t * payload = buf + 32; + CreateNonce (be32toh (header.h.packetNum), nonce); + uint8_t h[32]; + memcpy (h, header.buf, 16); + memcpy (h + 16, &headerX, 16); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 48, h, 32, + i2p::context.GetSSU2IntroKey (), nonce, payload, len - 48, false)) + { + LogPrint (eLogWarning, "SSU2: PeerTest AEAD verification failed "); + return false; + } + HandlePayload (payload, len - 48); + SetIsDataReceived (false); + return true; + } + + void SSU2PeerTestSession::HandleAddress (const uint8_t * buf, size_t len) + { + if (!ExtractEndpoint (buf, len, m_OurEndpoint)) + LogPrint (eLogWarning, "SSU2: Can't handle address block from peer test message"); + } + + void SSU2PeerTestSession::HandlePeerTest (const uint8_t * buf, size_t len) + { + // msgs 5-7 + if (len < 8) return; + uint8_t msg = buf[0]; + if (msg <= m_MsgNumReceived) + { + LogPrint (eLogDebug, "SSU2: PeerTest msg num ", msg, " received after ", m_MsgNumReceived, ". Ignored"); + return; + } + size_t offset = 3; // points to signed data after msg + code + flag + uint32_t nonce = bufbe32toh (buf + offset + 1); // 1 - ver + switch (msg) // msg + { + case 5: // Alice from Charlie 1 + { + if (htobe64 (((uint64_t)nonce << 32) | nonce) == GetSourceConnID ()) + { + m_PeerTestResendTimer.cancel (); // cancel delayed msg 6 if any + m_IsConnectedRecently = GetServer ().IsConnectedRecently (GetRemoteEndpoint ()); + if (GetAddress ()) + { + if (!m_IsConnectedRecently) + SetRouterStatus (eRouterStatusOK); + else if (m_IsStatusChanged && GetRouterStatus () == eRouterStatusFirewalled) + SetRouterStatus (eRouterStatusUnknown); + SendPeerTest (6, buf + offset, len - offset); + } + } + else + LogPrint (eLogWarning, "SSU2: Peer test 5 nonce mismatch ", nonce, " connID=", GetSourceConnID ()); + break; + } + case 6: // Charlie from Alice + { + m_PeerTestResendTimer.cancel (); // no more msg 5 resends + if (GetAddress ()) + SendPeerTest (7, buf + offset, len - offset); + else + LogPrint (eLogWarning, "SSU2: Unknown address for peer test 6"); + GetServer ().RequestRemoveSession (GetConnID ()); + break; + } + case 7: // Alice from Charlie 2 + { + m_PeerTestResendTimer.cancel (); // no more msg 6 resends + if (m_MsgNumReceived < 5 && m_OurEndpoint.port ()) // msg 5 was not received + { + if (m_OurEndpoint.address ().is_v4 ()) // ipv4 + { + if (i2p::context.GetStatus () == eRouterStatusFirewalled) + { + if (m_OurEndpoint.port () != GetServer ().GetPort (true)) + i2p::context.SetError (eRouterErrorSymmetricNAT); + else if (i2p::context.GetError () == eRouterErrorSymmetricNAT) + i2p::context.SetError (eRouterErrorNone); + } + } + else + { + if (i2p::context.GetStatusV6 () == eRouterStatusFirewalled) + { + if (m_OurEndpoint.port () != GetServer ().GetPort (false)) + i2p::context.SetErrorV6 (eRouterErrorSymmetricNAT); + else if (i2p::context.GetErrorV6 () == eRouterErrorSymmetricNAT) + i2p::context.SetErrorV6 (eRouterErrorNone); + } + } + } + GetServer ().RequestRemoveSession (GetConnID ()); + break; + } + default: + LogPrint (eLogWarning, "SSU2: PeerTest unexpected msg num ", msg); + return; + } + m_MsgNumReceived = msg; + } + + void SSU2PeerTestSession::SendPeerTest (uint8_t msg) + { + auto addr = GetAddress (); + if (!addr) return; + Header header; + uint8_t h[32], payload[SSU2_MAX_PACKET_SIZE]; + // fill packet + header.h.connID = GetDestConnID (); // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2PeerTest; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (h, header.buf, 16); + htobuf64 (h + 16, GetSourceConnID ()); // source id + // payload + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + size_t payloadSize = 7; + if (msg == 6 || msg == 7) + payloadSize += CreateAddressBlock (payload + payloadSize, GetMaxPayloadSize () - payloadSize, GetRemoteEndpoint ()); + payloadSize += CreatePeerTestBlock (payload + payloadSize, GetMaxPayloadSize () - payloadSize, + msg, eSSU2PeerTestCodeAccept, nullptr, m_SignedData.data (), m_SignedData.size ()); + payloadSize += CreatePaddingBlock (payload + payloadSize, GetMaxPayloadSize () - payloadSize); + // encrypt + uint8_t n[12]; + CreateNonce (be32toh (header.h.packetNum), n); + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, h, 32, addr->i, n, payload, payloadSize + 16, true); + payloadSize += 16; + header.ll[0] ^= CreateHeaderMask (addr->i, payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (addr->i, payload + (payloadSize - 12)); + memset (n, 0, 12); + GetServer ().ChaCha20 (h + 16, 16, addr->i, n, h + 16); + // send + GetServer ().Send (header.buf, 16, h + 16, 16, payload, payloadSize, GetRemoteEndpoint ()); + UpdateNumSentBytes (payloadSize + 32); + } + + void SSU2PeerTestSession::SendPeerTest (uint8_t msg, const uint8_t * signedData, size_t signedDataLen, bool delayed) + { + m_SignedData.assign (signedData, signedData + signedDataLen); + if (!delayed) + SendPeerTest (msg); + // schedule resend for msgs 5 or 6 + if (msg == 5 || msg == 6) + ScheduleResend (msg); + } + + void SSU2PeerTestSession::SendPeerTest (uint8_t msg, const uint8_t * signedData, size_t signedDataLen, + std::shared_ptr addr, bool delayed) + { + if (!addr) return; + SetAddress (addr); + SendPeerTest (msg, signedData, signedDataLen, delayed); + } + + void SSU2PeerTestSession::Connect () + { + LogPrint (eLogError, "SSU2: Can't connect peer test session"); + } + + bool SSU2PeerTestSession::ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len) + { + LogPrint (eLogError, "SSU2: Can't handle incoming message in peer test session"); + return false; + } + + void SSU2PeerTestSession::ScheduleResend (uint8_t msg) + { + if (m_NumResends < SSU2_PEER_TEST_MAX_NUM_RESENDS) + { + m_PeerTestResendTimer.expires_from_now (boost::posix_time::milliseconds( + SSU2_PEER_TEST_RESEND_INTERVAL + GetServer ().GetRng ()() % SSU2_PEER_TEST_RESEND_INTERVAL_VARIANCE)); + std::weak_ptr s(std::static_pointer_cast(shared_from_this ())); + m_PeerTestResendTimer.async_wait ([s, msg](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto s1 = s.lock (); + if (s1) + { + if (msg > s1->m_MsgNumReceived) + { + s1->SendPeerTest (msg); + s1->m_NumResends++; + s1->ScheduleResend (msg); + } + } + } + }); + } + } + + SSU2HolePunchSession::SSU2HolePunchSession (SSU2Server& server, uint32_t nonce, + const boost::asio::ip::udp::endpoint& remoteEndpoint, + std::shared_ptr addr): + SSU2Session (server), // we create full incoming session + m_NumResends (0), m_HolePunchResendTimer (server.GetService ()) + { + // we are Charlie + uint64_t destConnID = htobe64 (((uint64_t)nonce << 32) | nonce); // dest id + uint64_t sourceConnID = ~destConnID; + SetSourceConnID (sourceConnID); + SetDestConnID (destConnID); + SetState (eSSU2SessionStateHolePunch); + SetRemoteEndpoint (remoteEndpoint); + SetAddress (addr); + SetTerminationTimeout (SSU2_RELAY_NONCE_EXPIRATION_TIMEOUT); + } + + void SSU2HolePunchSession::SendHolePunch () + { + auto addr = GetAddress (); + if (!addr) return; + auto& ep = GetRemoteEndpoint (); + LogPrint (eLogDebug, "SSU2: Sending HolePunch to ", ep); + Header header; + uint8_t h[32], payload[SSU2_MAX_PACKET_SIZE]; + // fill packet + header.h.connID = GetDestConnID (); // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2HolePunch; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (h, header.buf, 16); + htobuf64 (h + 16, GetSourceConnID ()); // source id + RAND_bytes (h + 24, 8); // header token, to be ignored by Alice + // payload + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + size_t payloadSize = 7; + payloadSize += CreateAddressBlock (payload + payloadSize, GetMaxPayloadSize () - payloadSize, ep); + // relay response block + if (payloadSize + m_RelayResponseBlock.size () < GetMaxPayloadSize ()) + { + memcpy (payload + payloadSize, m_RelayResponseBlock.data (), m_RelayResponseBlock.size ()); + payloadSize += m_RelayResponseBlock.size (); + } + payloadSize += CreatePaddingBlock (payload + payloadSize, GetMaxPayloadSize () - payloadSize); + // encrypt + uint8_t n[12]; + CreateNonce (be32toh (header.h.packetNum), n); + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, h, 32, addr->i, n, payload, payloadSize + 16, true); + payloadSize += 16; + header.ll[0] ^= CreateHeaderMask (addr->i, payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (addr->i, payload + (payloadSize - 12)); + memset (n, 0, 12); + GetServer ().ChaCha20 (h + 16, 16, addr->i, n, h + 16); + // send + GetServer ().Send (header.buf, 16, h + 16, 16, payload, payloadSize, ep); + UpdateNumSentBytes (payloadSize + 32); + } + + void SSU2HolePunchSession::SendHolePunch (const uint8_t * relayResponseBlock, size_t relayResponseBlockLen) + { + m_RelayResponseBlock.assign (relayResponseBlock, relayResponseBlock + relayResponseBlockLen); + SendHolePunch (); + ScheduleResend (); + } + + void SSU2HolePunchSession::ScheduleResend () + { + if (m_NumResends < SSU2_HOLE_PUNCH_MAX_NUM_RESENDS) + { + m_HolePunchResendTimer.expires_from_now (boost::posix_time::milliseconds( + SSU2_HOLE_PUNCH_RESEND_INTERVAL + GetServer ().GetRng ()() % SSU2_HOLE_PUNCH_RESEND_INTERVAL_VARIANCE)); + std::weak_ptr s(std::static_pointer_cast(shared_from_this ())); + m_HolePunchResendTimer.async_wait ([s](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto s1 = s.lock (); + if (s1 && s1->GetState () == eSSU2SessionStateHolePunch) + { + s1->SendHolePunch (); + s1->m_NumResends++; + s1->ScheduleResend (); + } + } + }); + } + } + + bool SSU2HolePunchSession::ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len) + { + m_HolePunchResendTimer.cancel (); + return SSU2Session::ProcessFirstIncomingMessage (connID, buf, len); + } +} +} diff --git a/libi2pd/SSU2OutOfSession.h b/libi2pd/SSU2OutOfSession.h new file mode 100644 index 00000000..e8c55c3c --- /dev/null +++ b/libi2pd/SSU2OutOfSession.h @@ -0,0 +1,86 @@ +/* +* Copyright (c) 2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef SSU2_OUT_OF_SESSION_H__ +#define SSU2_OUT_OF_SESSION_H__ + +#include +#include "SSU2Session.h" + +namespace i2p +{ +namespace transport +{ + const int SSU2_PEER_TEST_RESEND_INTERVAL = 3000; // in milliseconds + const int SSU2_PEER_TEST_RESEND_INTERVAL_VARIANCE = 2000; // in milliseconds + const int SSU2_PEER_TEST_MAX_NUM_RESENDS = 3; + + class SSU2PeerTestSession: public SSU2Session // for PeerTest msgs 5,6,7 + { + public: + + SSU2PeerTestSession (SSU2Server& server, uint64_t sourceConnID, uint64_t destConnID); + + uint8_t GetMsgNumReceived () const { return m_MsgNumReceived; } + bool IsConnectedRecently () const { return m_IsConnectedRecently; } + void SetStatusChanged () { m_IsStatusChanged = true; } + + void SendPeerTest (uint8_t msg, const uint8_t * signedData, size_t signedDataLen, + std::shared_ptr addr, bool delayed = false); + bool ProcessPeerTest (uint8_t * buf, size_t len) override; + void Connect () override; // outgoing + bool ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len) override; // incoming + + private: + + void SendPeerTest (uint8_t msg, const uint8_t * signedData, size_t signedDataLen, bool delayed = false); // PeerTest message + void SendPeerTest (uint8_t msg); // send or resend m_SignedData + void HandlePeerTest (const uint8_t * buf, size_t len) override; + void HandleAddress (const uint8_t * buf, size_t len) override; + + void ScheduleResend (uint8_t msg); + + private: + + uint8_t m_MsgNumReceived, m_NumResends; + bool m_IsConnectedRecently, m_IsStatusChanged; + std::vector m_SignedData; // for resends + boost::asio::deadline_timer m_PeerTestResendTimer; + boost::asio::ip::udp::endpoint m_OurEndpoint; // as seen by peer + }; + + const int SSU2_HOLE_PUNCH_RESEND_INTERVAL = 1000; // in milliseconds + const int SSU2_HOLE_PUNCH_RESEND_INTERVAL_VARIANCE = 500; // in milliseconds + const int SSU2_HOLE_PUNCH_MAX_NUM_RESENDS = 3; + + class SSU2HolePunchSession: public SSU2Session // Charlie + { + public: + + SSU2HolePunchSession (SSU2Server& server, uint32_t nonce, const boost::asio::ip::udp::endpoint& remoteEndpoint, + std::shared_ptr addr); + + void SendHolePunch (const uint8_t * relayResponseBlock, size_t relayResponseBlockLen); + + bool ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len) override; // SessionRequest + + private: + + void SendHolePunch (); + void ScheduleResend (); + + private: + + int m_NumResends; + std::vector m_RelayResponseBlock; + boost::asio::deadline_timer m_HolePunchResendTimer; + }; +} +} + +#endif diff --git a/libi2pd/SSU2Session.cpp b/libi2pd/SSU2Session.cpp new file mode 100644 index 00000000..cb10f848 --- /dev/null +++ b/libi2pd/SSU2Session.cpp @@ -0,0 +1,3214 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include +#include +#include "Log.h" +#include "Transports.h" +#include "Gzip.h" +#include "NetDb.hpp" +#include "SSU2.h" +#include "SSU2Session.h" + +namespace i2p +{ +namespace transport +{ + void SSU2IncompleteMessage::AttachNextFragment (const uint8_t * fragment, size_t fragmentSize) + { + if (msg->len + fragmentSize > msg->maxLen) + { + LogPrint (eLogInfo, "SSU2: I2NP message size ", msg->maxLen, " is not enough"); + auto newMsg = NewI2NPMessage (msg->len + fragmentSize); + *newMsg = *msg; + msg = newMsg; + } + if (msg->Concat (fragment, fragmentSize) < fragmentSize) + LogPrint (eLogError, "SSU2: I2NP buffer overflow ", msg->maxLen); + nextFragmentNum++; + } + + bool SSU2IncompleteMessage::ConcatOutOfSequenceFragments () + { + bool isLast = false; + while (outOfSequenceFragments) + { + if (outOfSequenceFragments->fragmentNum == nextFragmentNum) + { + AttachNextFragment (outOfSequenceFragments->buf, outOfSequenceFragments->len); + isLast = outOfSequenceFragments->isLast; + if (isLast) + outOfSequenceFragments = nullptr; + else + outOfSequenceFragments = outOfSequenceFragments->next; + } + else + break; + } + return isLast; + } + + void SSU2IncompleteMessage::AddOutOfSequenceFragment (std::shared_ptr fragment) + { + if (!fragment || !fragment->fragmentNum) return; // fragment 0 not allowed + if (fragment->fragmentNum < nextFragmentNum) return; // already processed + if (!outOfSequenceFragments) + outOfSequenceFragments = fragment; + else + { + auto frag = outOfSequenceFragments; + std::shared_ptr prev; + do + { + if (fragment->fragmentNum < frag->fragmentNum) break; // found + if (fragment->fragmentNum == frag->fragmentNum) return; // duplicate + prev = frag; frag = frag->next; + } + while (frag); + fragment->next = frag; + if (prev) + prev->next = fragment; + else + outOfSequenceFragments = fragment; + } + lastFragmentInsertTime = i2p::util::GetSecondsSinceEpoch (); + } + + SSU2Session::SSU2Session (SSU2Server& server, std::shared_ptr in_RemoteRouter, + std::shared_ptr addr, bool noise): + TransportSession (in_RemoteRouter, SSU2_CONNECT_TIMEOUT), + m_Server (server), m_Address (addr), m_RemoteTransports (0), m_RemotePeerTestTransports (0), + m_RemoteVersion (0), m_DestConnID (0), m_SourceConnID (0), m_State (eSSU2SessionStateUnknown), + m_SendPacketNum (0), m_ReceivePacketNum (0), m_LastDatetimeSentPacketNum (0), + m_IsDataReceived (false), m_RTT (SSU2_UNKNOWN_RTT), + m_MsgLocalExpirationTimeout (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX), + m_MsgLocalSemiExpirationTimeout (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX / 2), + m_WindowSize (SSU2_MIN_WINDOW_SIZE), + m_RTO (SSU2_INITIAL_RTO), m_RelayTag (0),m_ConnectTimer (server.GetService ()), + m_TerminationReason (eSSU2TerminationReasonNormalClose), + m_MaxPayloadSize (SSU2_MIN_PACKET_SIZE - IPV6_HEADER_SIZE - UDP_HEADER_SIZE - 32), // min size + m_LastResendTime (0), m_LastResendAttemptTime (0), m_NumRanges (0) + { + if (noise) + m_NoiseState.reset (new i2p::crypto::NoiseSymmetricState); + if (in_RemoteRouter && m_Address) + { + // outgoing + if (noise) + InitNoiseXKState1 (*m_NoiseState, m_Address->s); + m_RemoteEndpoint = boost::asio::ip::udp::endpoint (m_Address->host, m_Address->port); + m_RemoteTransports = in_RemoteRouter->GetCompatibleTransports (false); + m_RemoteVersion = in_RemoteRouter->GetVersion (); + if (in_RemoteRouter->IsSSU2PeerTesting (true)) m_RemotePeerTestTransports |= i2p::data::RouterInfo::eSSU2V4; + if (in_RemoteRouter->IsSSU2PeerTesting (false)) m_RemotePeerTestTransports |= i2p::data::RouterInfo::eSSU2V6; + RAND_bytes ((uint8_t *)&m_DestConnID, 8); + RAND_bytes ((uint8_t *)&m_SourceConnID, 8); + } + else + { + // incoming + if (noise) + InitNoiseXKState1 (*m_NoiseState, i2p::context.GetSSU2StaticPublicKey ()); + } + } + + SSU2Session::~SSU2Session () + { + } + + void SSU2Session::Connect () + { + if (m_State == eSSU2SessionStateUnknown || m_State == eSSU2SessionStateTokenReceived) + { + LogPrint(eLogDebug, "SSU2: Connecting to ", GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ()), ")"); + ScheduleConnectTimer (); + auto token = m_Server.FindOutgoingToken (m_RemoteEndpoint); + if (token) + SendSessionRequest (token); + else + { + m_State = eSSU2SessionStateUnknown; + SendTokenRequest (); + } + } + } + + void SSU2Session::ScheduleConnectTimer () + { + m_ConnectTimer.cancel (); + m_ConnectTimer.expires_from_now (boost::posix_time::seconds(SSU2_CONNECT_TIMEOUT)); + m_ConnectTimer.async_wait (std::bind (&SSU2Session::HandleConnectTimer, + shared_from_this (), std::placeholders::_1)); + } + + void SSU2Session::HandleConnectTimer (const boost::system::error_code& ecode) + { + if (!ecode && m_State != eSSU2SessionStateTerminated) + { + // timeout expired + if (m_State == eSSU2SessionStateIntroduced) // WaitForIntroducer + LogPrint (eLogWarning, "SSU2: Session was not introduced after ", SSU2_CONNECT_TIMEOUT, " seconds"); + else + LogPrint (eLogWarning, "SSU2: Session with ", m_RemoteEndpoint, " was not established after ", SSU2_CONNECT_TIMEOUT, " seconds"); + Terminate (); + } + } + + bool SSU2Session::Introduce (std::shared_ptr session, uint32_t relayTag) + { + // we are Alice + if (!session || !relayTag) return false; + // find local address to introduce + auto localAddress = session->FindLocalAddress (); + if (!localAddress || localAddress->host.is_unspecified () || !localAddress->port) + { + // can't introduce invalid endpoint + LogPrint (eLogWarning, "SSU2: Can't find local address to introduce"); + return false; + } + // create nonce + uint32_t nonce; + RAND_bytes ((uint8_t *)&nonce, 4); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + // payload + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + uint8_t * payload = packet->payload; + payload[0] = eSSU2BlkRelayRequest; + payload[3] = 0; // flag + htobe32buf (payload + 4, nonce); + htobe32buf (payload + 8, relayTag); + htobe32buf (payload + 12, ts/1000); + payload[16] = 2; // ver + size_t asz = CreateEndpoint (payload + 18, m_MaxPayloadSize - 18, boost::asio::ip::udp::endpoint (localAddress->host, localAddress->port)); + if (!asz) return false; + payload[17] = asz; + packet->payloadSize = asz + 18; + SignedData<128> s; + s.Insert ((const uint8_t *)"RelayRequestData", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (session->GetRemoteIdentity ()->GetIdentHash (), 32); // chash + s.Insert (payload + 4, 14 + asz); // nonce, relay tag, timestamp, ver, asz and Alice's endpoint + s.Sign (i2p::context.GetPrivateKeys (), payload + packet->payloadSize); + packet->payloadSize += i2p::context.GetIdentity ()->GetSignatureLen (); + htobe16buf (payload + 1, packet->payloadSize - 3); // size + packet->payloadSize += CreatePaddingBlock (payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + // send + m_RelaySessions.emplace (nonce, std::make_pair (session, ts/1000)); + session->m_SourceConnID = htobe64 (((uint64_t)nonce << 32) | nonce); + session->m_DestConnID = ~session->m_SourceConnID; + m_Server.AddSession (session); + int32_t packetNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + + return true; + } + + void SSU2Session::WaitForIntroduction () + { + m_State = eSSU2SessionStateIntroduced; + ScheduleConnectTimer (); + } + + void SSU2Session::ConnectAfterIntroduction () + { + if (m_State == eSSU2SessionStateIntroduced) + { + // we are Alice + // keep ConnIDs used for introduction, because Charlie waits for SessionRequest from us + m_State = eSSU2SessionStateTokenReceived; + // move session to pending outgoing + if (m_Server.AddPendingOutgoingSession (shared_from_this ())) + { + m_Server.RemoveSession (GetConnID ()); + // update endpoint in profile because we know it now + auto identity = GetRemoteIdentity (); + if (identity) + { + auto profile = i2p::data::GetRouterProfile (identity->GetIdentHash ()); + if (profile) profile->SetLastEndpoint (m_RemoteEndpoint); + } + // connect + LogPrint (eLogDebug, "SSU2: Connecting after introduction to ", GetIdentHashBase64()); + Connect (); + } + else + { + LogPrint (eLogError, "SSU2: Session ", GetConnID (), " is already pending"); + m_Server.RequestRemoveSession (GetConnID ()); + } + } + } + + void SSU2Session::SendPeerTest () + { + // we are Alice + uint32_t nonce; + RAND_bytes ((uint8_t *)&nonce, 4); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + // session for message 5 + auto session = std::make_shared (m_Server, + htobe64 (((uint64_t)nonce << 32) | nonce), 0); + m_Server.AddRequestedPeerTest (nonce, session, ts/1000); + m_Server.AddSession (session); + // peer test block + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + packet->payloadSize = CreatePeerTestBlock (packet->payload, m_MaxPayloadSize, nonce); + if (packet->payloadSize > 0) + { + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + LogPrint (eLogDebug, "SSU2: PeerTest msg=1 sent to ", i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ())); + } + } + + void SSU2Session::SendKeepAlive () + { + if (IsEstablished ()) + { + uint8_t payload[20]; + size_t payloadSize = CreatePaddingBlock (payload, 20, 8); + SendData (payload, payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED); + } + } + + void SSU2Session::Terminate () + { + if (m_State != eSSU2SessionStateTerminated) + { + m_State = eSSU2SessionStateTerminated; + m_ConnectTimer.cancel (); + m_OnEstablished = nullptr; + if (m_RelayTag) + m_Server.RemoveRelay (m_RelayTag); + m_Server.AddConnectedRecently (m_RemoteEndpoint, GetLastActivityTimestamp ()); + m_SentHandshakePacket.reset (nullptr); + m_SessionConfirmedFragment.reset (nullptr); + m_PathChallenge.reset (nullptr); + if (!m_IntermediateQueue.empty ()) + m_SendQueue.splice (m_SendQueue.end (), m_IntermediateQueue); + for (auto& it: m_SendQueue) + it->Drop (); + m_SendQueue.clear (); + SetSendQueueSize (0); + m_SentPackets.clear (); + m_IncompleteMessages.clear (); + m_RelaySessions.clear (); + m_ReceivedI2NPMsgIDs.clear (); + m_Server.RemoveSession (m_SourceConnID); + transports.PeerDisconnected (shared_from_this ()); + auto remoteIdentity = GetRemoteIdentity (); + if (remoteIdentity) + LogPrint (eLogDebug, "SSU2: Session with ", GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (remoteIdentity->GetIdentHash ()), ") terminated"); + else + LogPrint (eLogDebug, "SSU2: Session with ", GetRemoteEndpoint (), " terminated"); + } + } + + void SSU2Session::RequestTermination (SSU2TerminationReason reason) + { + if (m_State == eSSU2SessionStateEstablished || m_State == eSSU2SessionStateClosing) + { + m_TerminationReason = reason; + SendTermination (); + m_State = eSSU2SessionStateClosing; + } + else + Done (); + } + + void SSU2Session::Established () + { + m_State = eSSU2SessionStateEstablished; + m_EphemeralKeys = nullptr; + m_NoiseState.reset (nullptr); + m_SessionConfirmedFragment.reset (nullptr); + m_SentHandshakePacket.reset (nullptr); + m_ConnectTimer.cancel (); + SetTerminationTimeout (SSU2_TERMINATION_TIMEOUT); + SendQueue (); + transports.PeerConnected (shared_from_this ()); + + LogPrint(eLogDebug, "SSU2: Session with ", GetRemoteEndpoint (), + " (", i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ()), ") established"); + if (m_OnEstablished) + { + m_OnEstablished (); + m_OnEstablished = nullptr; + } + } + + void SSU2Session::Done () + { + boost::asio::post (m_Server.GetService (), std::bind (&SSU2Session::Terminate, shared_from_this ())); + } + + void SSU2Session::SendLocalRouterInfo (bool update) + { + if (update || !IsOutgoing ()) + { + auto s = shared_from_this (); + boost::asio::post (m_Server.GetService (), [s]() + { + if (!s->IsEstablished ()) return; + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = s->CreateRouterInfoBlock (payload, s->m_MaxPayloadSize - 32, i2p::context.CopyRouterInfoBuffer ()); + if (payloadSize) + { + if (payloadSize < s->m_MaxPayloadSize) + payloadSize += s->CreatePaddingBlock (payload + payloadSize, s->m_MaxPayloadSize - payloadSize); + s->SendData (payload, payloadSize); + } + else + s->SendFragmentedMessage (CreateDatabaseStoreMsg ()); + }); + } + + } + + void SSU2Session::SendI2NPMessages (std::list >& msgs) + { + if (m_State == eSSU2SessionStateTerminated || msgs.empty ()) + { + msgs.clear (); + return; + } + bool empty = false; + { + std::lock_guard l(m_IntermediateQueueMutex); + empty = m_IntermediateQueue.empty (); + m_IntermediateQueue.splice (m_IntermediateQueue.end (), msgs); + } + if (empty) + boost::asio::post (m_Server.GetService (), std::bind (&SSU2Session::PostI2NPMessages, shared_from_this ())); + } + + void SSU2Session::PostI2NPMessages () + { + if (m_State == eSSU2SessionStateTerminated) return; + std::list > msgs; + { + std::lock_guard l(m_IntermediateQueueMutex); + m_IntermediateQueue.swap (msgs); + } + uint64_t mts = i2p::util::GetMonotonicMicroseconds (); + bool isSemiFull = false; + if (m_SendQueue.size ()) + { + int64_t queueLag = (int64_t)mts - (int64_t)m_SendQueue.front ()->GetEnqueueTime (); + isSemiFull = queueLag > m_MsgLocalSemiExpirationTimeout; + if (isSemiFull) + { + LogPrint (eLogWarning, "SSU2: Outgoing messages queue to ", + i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ()), + " is semi-full (size = ", m_SendQueue.size (), ", lag = ", queueLag / 1000, ", rtt = ", (int)m_RTT, ")"); + } + } + if (isSemiFull) + { + for (auto it: msgs) + { + if (it->onDrop) + it->Drop (); // drop earlier because we can handle it + else + { + it->SetEnqueueTime (mts); + m_SendQueue.push_back (std::move (it)); + } + } + } + else + { + for (auto& it: msgs) it->SetEnqueueTime (mts); + m_SendQueue.splice (m_SendQueue.end (), msgs); + } + if (IsEstablished ()) + { + SendQueue (); + if (m_SendQueue.size () > 0) // windows is full + Resend (i2p::util::GetMillisecondsSinceEpoch ()); + } + SetSendQueueSize (m_SendQueue.size ()); + } + + void SSU2Session::MoveSendQueue (std::shared_ptr other) + { + if (!other || m_SendQueue.empty ()) return; + std::list > msgs; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + for (auto it: m_SendQueue) + if (!it->IsExpired (ts)) + msgs.push_back (it); + else + it->Drop (); + m_SendQueue.clear (); + if (!msgs.empty ()) + other->SendI2NPMessages (msgs); + } + + bool SSU2Session::SendQueue () + { + if (!m_SendQueue.empty () && m_SentPackets.size () <= m_WindowSize && IsEstablished ()) + { + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + uint64_t mts = i2p::util::GetMonotonicMicroseconds (); + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + size_t ackBlockSize = CreateAckBlock (packet->payload, m_MaxPayloadSize); + bool ackBlockSent = false; + packet->payloadSize += ackBlockSize; + while (!m_SendQueue.empty () && m_SentPackets.size () <= m_WindowSize) + { + auto msg = m_SendQueue.front (); + if (!msg || msg->IsExpired (ts) || msg->GetEnqueueTime() + m_MsgLocalExpirationTimeout < mts) + { + // drop null or expired message + if (msg) msg->Drop (); + m_SendQueue.pop_front (); + continue; + } + size_t len = msg->GetNTCP2Length () + 3; + if (len > m_MaxPayloadSize) // message too long + { + m_SendQueue.pop_front (); + if (SendFragmentedMessage (msg)) + ackBlockSent = true; + } + else if (packet->payloadSize + len <= m_MaxPayloadSize) + { + m_SendQueue.pop_front (); + packet->payloadSize += CreateI2NPBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize, std::move (msg)); + } + else + { + // create new packet and copy ack block + auto newPacket = m_Server.GetSentPacketsPool ().AcquireShared (); + memcpy (newPacket->payload, packet->payload, ackBlockSize); + newPacket->payloadSize = ackBlockSize; + // complete current packet + if (packet->payloadSize > ackBlockSize) // more than just ack block + { + ackBlockSent = true; + // try to add padding + if (packet->payloadSize + 16 < m_MaxPayloadSize) + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + } + else + { + // reduce ack block + if (len + 8 < m_MaxPayloadSize) + { + // keep Ack block and drop some ranges + ackBlockSent = true; + packet->payloadSize = m_MaxPayloadSize - len; + if (packet->payloadSize & 0x01) packet->payloadSize--; // make it even + htobe16buf (packet->payload + 1, packet->payloadSize - 3); // new block size + } + else // drop Ack block completely + packet->payloadSize = 0; + // msg fits single packet + m_SendQueue.pop_front (); + packet->payloadSize += CreateI2NPBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize, std::move (msg)); + } + // send right a way + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + packet = newPacket; // just ack block + } + }; + if (packet->payloadSize > ackBlockSize) + { + // last + ackBlockSent = true; + if (packet->payloadSize + 16 < m_MaxPayloadSize) + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + } + return ackBlockSent; + } + return false; + } + + bool SSU2Session::SendFragmentedMessage (std::shared_ptr msg) + { + if (!msg) return false; + size_t lastFragmentSize = (msg->GetNTCP2Length () + 3 - m_MaxPayloadSize) % (m_MaxPayloadSize - 8); + size_t extraSize = m_MaxPayloadSize - lastFragmentSize; + bool ackBlockSent = false; + uint32_t msgID; + memcpy (&msgID, msg->GetHeader () + I2NP_HEADER_MSGID_OFFSET, 4); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + if (extraSize >= 8) + { + packet->payloadSize = CreateAckBlock (packet->payload, extraSize); + ackBlockSent = true; + if (packet->payloadSize + 12 < m_MaxPayloadSize) + { + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + packet = m_Server.GetSentPacketsPool ().AcquireShared (); + } + else + extraSize -= packet->payloadSize; + } + size_t offset = extraSize > 0 ? (m_Server.GetRng ()() % extraSize) : 0; + if (offset + packet->payloadSize >= m_MaxPayloadSize) offset = 0; + auto size = CreateFirstFragmentBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - offset - packet->payloadSize, msg); + if (!size) return false; + extraSize -= offset; + packet->payloadSize += size; + uint32_t firstPacketNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (firstPacketNum, packet); + uint8_t fragmentNum = 0; + while (msg->offset < msg->len) + { + offset = extraSize > 0 ? (m_Server.GetRng ()() % extraSize) : 0; + packet = m_Server.GetSentPacketsPool ().AcquireShared (); + packet->payloadSize = CreateFollowOnFragmentBlock (packet->payload, m_MaxPayloadSize - offset, msg, fragmentNum, msgID); + extraSize -= offset; + uint8_t flags = 0; + if (msg->offset >= msg->len && packet->payloadSize + 16 < m_MaxPayloadSize) // last fragment + { + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + if (fragmentNum > 2) // 3 or more fragments + flags |= SSU2_FLAG_IMMEDIATE_ACK_REQUESTED; + } + uint32_t followonPacketNum = SendData (packet->payload, packet->payloadSize, flags); + packet->sendTime = ts; + m_SentPackets.emplace (followonPacketNum, packet); + } + return ackBlockSent; + } + + size_t SSU2Session::Resend (uint64_t ts) + { + if (ts + SSU2_RESEND_ATTEMPT_MIN_INTERVAL < m_LastResendAttemptTime) return 0; + m_LastResendAttemptTime = ts; + // resend handshake packet + if (m_SentHandshakePacket && ts >= m_SentHandshakePacket->sendTime + SSU2_HANDSHAKE_RESEND_INTERVAL) + { + LogPrint (eLogDebug, "SSU2: Resending ", (int)m_State); + ResendHandshakePacket (); + m_SentHandshakePacket->sendTime = ts; + return 0; + } + // resend data packets + if (m_SentPackets.empty ()) return 0; + std::map > resentPackets; + for (auto it = m_SentPackets.begin (); it != m_SentPackets.end (); ) + if (ts >= it->second->sendTime + (it->second->numResends + 1) * m_RTO) + { + if (it->second->numResends > SSU2_MAX_NUM_RESENDS) + { + LogPrint (eLogInfo, "SSU2: Packet was not Acked after ", it->second->numResends, " attempts. Terminate session"); + m_SentPackets.clear (); + m_SendQueue.clear (); + SetSendQueueSize (0); + RequestTermination (eSSU2TerminationReasonTimeout); + return resentPackets.size (); + } + else + { + uint32_t packetNum = SendData (it->second->payload, it->second->payloadSize, + it->second->numResends > 1 ? SSU2_FLAG_IMMEDIATE_ACK_REQUESTED : 0); + it->second->numResends++; + it->second->sendTime = ts; + resentPackets.emplace (packetNum, it->second); + it = m_SentPackets.erase (it); + } + } + else + it++; + if (!resentPackets.empty ()) + { + m_LastResendTime = ts; + m_SentPackets.merge (resentPackets); + m_WindowSize >>= 1; // /2 + if (m_WindowSize < SSU2_MIN_WINDOW_SIZE) m_WindowSize = SSU2_MIN_WINDOW_SIZE; + return resentPackets.size (); + } + return 0; + } + + void SSU2Session::ResendHandshakePacket () + { + if (m_SentHandshakePacket) + { + m_Server.Send (m_SentHandshakePacket->header.buf, 16, m_SentHandshakePacket->headerX, 48, + m_SentHandshakePacket->payload, m_SentHandshakePacket->payloadSize, m_RemoteEndpoint); + if (m_SessionConfirmedFragment && m_State == eSSU2SessionStateSessionConfirmedSent) + // resend second fragment of SessionConfirmed + m_Server.Send (m_SessionConfirmedFragment->header.buf, 16, + m_SessionConfirmedFragment->payload, m_SessionConfirmedFragment->payloadSize, m_RemoteEndpoint); + } + } + + bool SSU2Session::ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len) + { + // we are Bob + m_SourceConnID = connID; + Header header; + header.h.connID = connID; + memcpy (header.buf + 8, buf + 8, 8); + header.ll[1] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 12)); + switch (header.h.type) + { + case eSSU2SessionRequest: + ProcessSessionRequest (header, buf, len); + break; + case eSSU2TokenRequest: + ProcessTokenRequest (header, buf, len); + break; + case eSSU2PeerTest: + { + // TODO: remove later + if (len < 32) + { + LogPrint (eLogWarning, "SSU2: PeerTest message too short ", len); + break; + } + const uint8_t nonce[12] = {0}; + uint64_t headerX[2]; + m_Server.ChaCha20 (buf + 16, 16, i2p::context.GetSSU2IntroKey (), nonce, (uint8_t *)headerX); + LogPrint (eLogWarning, "SSU2: Unexpected PeerTest message SourceConnID=", connID, " DestConnID=", headerX[0]); + break; + } + case eSSU2HolePunch: + LogPrint (eLogDebug, "SSU2: Late HolePunch for ", connID); + break; + default: + { + LogPrint (eLogWarning, "SSU2: Unexpected message type ", (int)header.h.type, " from ", m_RemoteEndpoint, " of ", len, " bytes"); + return false; + } + } + return true; + } + + void SSU2Session::SendSessionRequest (uint64_t token) + { + // we are Alice + m_EphemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); + m_SentHandshakePacket.reset (new HandshakePacket); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + m_SentHandshakePacket->sendTime = ts; + + Header& header = m_SentHandshakePacket->header; + uint8_t * headerX = m_SentHandshakePacket->headerX, + * payload = m_SentHandshakePacket->payload; + // fill packet + header.h.connID = m_DestConnID; // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2SessionRequest; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (headerX, &m_SourceConnID, 8); // source id + memcpy (headerX + 8, &token, 8); // token + memcpy (headerX + 16, m_EphemeralKeys->GetPublicKey (), 32); // X + // payload + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (ts + 500)/1000); + size_t payloadSize = 7; + if (GetRouterStatus () == eRouterStatusFirewalled && m_Address->IsIntroducer ()) + { + if (!m_Server.IsMaxNumIntroducers (m_RemoteEndpoint.address ().is_v4 ()) || + m_Server.GetRng ()() & 0x01) // request tag with probability 1/2 if we have enough introducers + { + // relay tag request + payload[payloadSize] = eSSU2BlkRelayTagRequest; + memset (payload + payloadSize + 1, 0, 2); // size = 0 + payloadSize += 3; + } + } + payloadSize += CreatePaddingBlock (payload + payloadSize, 40 - payloadSize, 1); + // KDF for session request + m_NoiseState->MixHash ({ {header.buf, 16}, {headerX, 16} }); // h = SHA256(h || header) + m_NoiseState->MixHash (m_EphemeralKeys->GetPublicKey (), 32); // h = SHA256(h || aepk); + uint8_t sharedSecret[32]; + m_EphemeralKeys->Agree (m_Address->s, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + // encrypt + const uint8_t nonce[12] = {0}; // always 0 + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, m_NoiseState->m_H, 32, m_NoiseState->m_CK + 32, nonce, payload, payloadSize + 16, true); + payloadSize += 16; + header.ll[0] ^= CreateHeaderMask (m_Address->i, payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (m_Address->i, payload + (payloadSize - 12)); + m_Server.ChaCha20 (headerX, 48, m_Address->i, nonce, headerX); + m_NoiseState->MixHash (payload, payloadSize); // h = SHA256(h || encrypted payload from Session Request) for SessionCreated + m_SentHandshakePacket->payloadSize = payloadSize; + // send + if (m_State == eSSU2SessionStateTokenReceived || m_Server.AddPendingOutgoingSession (shared_from_this ())) + { + m_State = eSSU2SessionStateSessionRequestSent; + m_HandshakeInterval = ts; + m_Server.Send (header.buf, 16, headerX, 48, payload, payloadSize, m_RemoteEndpoint); + } + else + { + LogPrint (eLogWarning, "SSU2: SessionRequest request to ", m_RemoteEndpoint, " already pending"); + Terminate (); + } + } + + void SSU2Session::ProcessSessionRequest (Header& header, uint8_t * buf, size_t len) + { + // we are Bob + if (len < 88) + { + LogPrint (eLogWarning, "SSU2: SessionRequest message too short ", len); + return; + } + const uint8_t nonce[12] = {0}; + uint8_t headerX[48]; + m_Server.ChaCha20 (buf + 16, 48, i2p::context.GetSSU2IntroKey (), nonce, headerX); + memcpy (&m_DestConnID, headerX, 8); + uint64_t token; + memcpy (&token, headerX + 8, 8); + if (!token || token != m_Server.GetIncomingToken (m_RemoteEndpoint)) + { + LogPrint (eLogDebug, "SSU2: SessionRequest token mismatch. Retry"); + SendRetry (); + return; + } + // KDF for session request + m_NoiseState->MixHash ( { {header.buf, 16}, {headerX, 16} } ); // h = SHA256(h || header) + m_NoiseState->MixHash (headerX + 16, 32); // h = SHA256(h || aepk); + uint8_t sharedSecret[32]; + i2p::context.GetSSU2StaticKeys ().Agree (headerX + 16, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + // decrypt + uint8_t * payload = buf + 64; + std::vector decryptedPayload(len - 80); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 80, m_NoiseState->m_H, 32, + m_NoiseState->m_CK + 32, nonce, decryptedPayload.data (), decryptedPayload.size (), false)) + { + LogPrint (eLogWarning, "SSU2: SessionRequest AEAD verification failed "); + return; + } + m_NoiseState->MixHash (payload, len - 64); // h = SHA256(h || encrypted payload from Session Request) for SessionCreated + // payload + m_State = eSSU2SessionStateSessionRequestReceived; + HandlePayload (decryptedPayload.data (), decryptedPayload.size ()); + + if (m_TerminationReason == eSSU2TerminationReasonNormalClose) + { + m_Server.AddSession (shared_from_this ()); + SendSessionCreated (headerX + 16); + } + else + SendRetry (); + } + + void SSU2Session::SendSessionCreated (const uint8_t * X) + { + // we are Bob + m_EphemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); + m_SentHandshakePacket.reset (new HandshakePacket); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + m_SentHandshakePacket->sendTime = ts; + + uint8_t kh2[32]; + i2p::crypto::HKDF (m_NoiseState->m_CK, nullptr, 0, "SessCreateHeader", kh2, 32); // k_header_2 = HKDF(chainKey, ZEROLEN, "SessCreateHeader", 32) + // fill packet + Header& header = m_SentHandshakePacket->header; + uint8_t * headerX = m_SentHandshakePacket->headerX, + * payload = m_SentHandshakePacket->payload; + header.h.connID = m_DestConnID; // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2SessionCreated; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (headerX, &m_SourceConnID, 8); // source id + memset (headerX + 8, 0, 8); // token = 0 + memcpy (headerX + 16, m_EphemeralKeys->GetPublicKey (), 32); // Y + // payload + size_t maxPayloadSize = m_MaxPayloadSize - 48; + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (ts + 500)/1000); + size_t payloadSize = 7; + payloadSize += CreateAddressBlock (payload + payloadSize, maxPayloadSize - payloadSize, m_RemoteEndpoint); + if (m_RelayTag) + { + payload[payloadSize] = eSSU2BlkRelayTag; + htobe16buf (payload + payloadSize + 1, 4); + htobe32buf (payload + payloadSize + 3, m_RelayTag); + payloadSize += 7; + } + auto token = m_Server.NewIncomingToken (m_RemoteEndpoint); + if (ts + SSU2_TOKEN_EXPIRATION_THRESHOLD > token.second) // not expired? + { + payload[payloadSize] = eSSU2BlkNewToken; + htobe16buf (payload + payloadSize + 1, 12); + htobe32buf (payload + payloadSize + 3, token.second - SSU2_TOKEN_EXPIRATION_THRESHOLD); // expires + memcpy (payload + payloadSize + 7, &token.first, 8); // token + payloadSize += 15; + } + payloadSize += CreatePaddingBlock (payload + payloadSize, maxPayloadSize - payloadSize); + // KDF for SessionCreated + m_NoiseState->MixHash ( { {header.buf, 16}, {headerX, 16} } ); // h = SHA256(h || header) + m_NoiseState->MixHash (headerX + 16, 32); // h = SHA256(h || bepk); + uint8_t sharedSecret[32]; + m_EphemeralKeys->Agree (X, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + // encrypt + const uint8_t nonce[12] = {0}; // always zero + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, m_NoiseState->m_H, 32, m_NoiseState->m_CK + 32, nonce, payload, payloadSize + 16, true); + payloadSize += 16; + m_NoiseState->MixHash (payload, payloadSize); // h = SHA256(h || encrypted Noise payload from Session Created) + header.ll[0] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (kh2, payload + (payloadSize - 12)); + m_Server.ChaCha20 (headerX, 48, kh2, nonce, headerX); + m_State = eSSU2SessionStateSessionCreatedSent; + m_SentHandshakePacket->payloadSize = payloadSize; + // send + m_HandshakeInterval = ts; + m_Server.Send (header.buf, 16, headerX, 48, payload, payloadSize, m_RemoteEndpoint); + } + + bool SSU2Session::ProcessSessionCreated (uint8_t * buf, size_t len) + { + // we are Alice + Header header; + memcpy (header.buf, buf, 16); + header.ll[0] ^= CreateHeaderMask (m_Address->i, buf + (len - 24)); + uint8_t kh2[32]; + i2p::crypto::HKDF (m_NoiseState->m_CK, nullptr, 0, "SessCreateHeader", kh2, 32); // k_header_2 = HKDF(chainKey, ZEROLEN, "SessCreateHeader", 32) + header.ll[1] ^= CreateHeaderMask (kh2, buf + (len - 12)); + if (header.h.type != eSSU2SessionCreated) + // this situation is valid, because it might be Retry with different encryption + return false; + if (len < 80) + { + LogPrint (eLogWarning, "SSU2: SessionCreated message too short ", len); + return false; + } + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch () - m_HandshakeInterval; + const uint8_t nonce[12] = {0}; + uint8_t headerX[48]; + m_Server.ChaCha20 (buf + 16, 48, kh2, nonce, headerX); + // KDF for SessionCreated + m_NoiseState->MixHash ( { {header.buf, 16}, {headerX, 16} } ); // h = SHA256(h || header) + m_NoiseState->MixHash (headerX + 16, 32); // h = SHA256(h || bepk); + uint8_t sharedSecret[32]; + m_EphemeralKeys->Agree (headerX + 16, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + // decrypt + uint8_t * payload = buf + 64; + std::vector decryptedPayload(len - 80); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 80, m_NoiseState->m_H, 32, + m_NoiseState->m_CK + 32, nonce, decryptedPayload.data (), decryptedPayload.size (), false)) + { + LogPrint (eLogWarning, "SSU2: SessionCreated AEAD verification failed "); + if (GetRemoteIdentity ()) + i2p::data::netdb.SetUnreachable (GetRemoteIdentity ()->GetIdentHash (), true); // assume wrong s key + return false; + } + m_NoiseState->MixHash (payload, len - 64); // h = SHA256(h || encrypted payload from SessionCreated) for SessionConfirmed + // payload + m_State = eSSU2SessionStateSessionCreatedReceived; + HandlePayload (decryptedPayload.data (), decryptedPayload.size ()); + + m_Server.AddSession (shared_from_this ()); + AdjustMaxPayloadSize (); + SendSessionConfirmed (headerX + 16); + KDFDataPhase (m_KeyDataSend, m_KeyDataReceive); + + return true; + } + + void SSU2Session::SendSessionConfirmed (const uint8_t * Y) + { + // we are Alice + m_SentHandshakePacket.reset (new HandshakePacket); + m_SentHandshakePacket->sendTime = i2p::util::GetMillisecondsSinceEpoch (); + + uint8_t kh2[32]; + i2p::crypto::HKDF (m_NoiseState->m_CK, nullptr, 0, "SessionConfirmed", kh2, 32); // k_header_2 = HKDF(chainKey, ZEROLEN, "SessionConfirmed", 32) + // fill packet + Header& header = m_SentHandshakePacket->header; + header.h.connID = m_DestConnID; // dest id + header.h.packetNum = 0; // always zero + header.h.type = eSSU2SessionConfirmed; + memset (header.h.flags, 0, 3); + header.h.flags[0] = 1; // frag, total fragments always 1 + // payload + size_t maxPayloadSize = m_MaxPayloadSize - 48; // for part 2, 48 is part1 + uint8_t * payload = m_SentHandshakePacket->payload; + size_t payloadSize = CreateRouterInfoBlock (payload, maxPayloadSize, i2p::context.CopyRouterInfoBuffer ()); + if (!payloadSize) + { + // split by two fragments + maxPayloadSize += m_MaxPayloadSize; + payloadSize = CreateRouterInfoBlock (payload, maxPayloadSize, i2p::context.CopyRouterInfoBuffer ()); + header.h.flags[0] = 0x02; // frag 0, total fragments 2 + // TODO: check if we need more fragments + } + if (payloadSize < maxPayloadSize) + payloadSize += CreatePaddingBlock (payload + payloadSize, maxPayloadSize - payloadSize); + // KDF for Session Confirmed part 1 + m_NoiseState->MixHash (header.buf, 16); // h = SHA256(h || header) + // Encrypt part 1 + uint8_t * part1 = m_SentHandshakePacket->headerX; + uint8_t nonce[12]; + CreateNonce (1, nonce); // always one + i2p::crypto::AEADChaCha20Poly1305 (i2p::context.GetSSU2StaticPublicKey (), 32, m_NoiseState->m_H, 32, m_NoiseState->m_CK + 32, nonce, part1, 48, true); + m_NoiseState->MixHash (part1, 48); // h = SHA256(h || ciphertext); + // KDF for Session Confirmed part 2 + uint8_t sharedSecret[32]; + i2p::context.GetSSU2StaticKeys ().Agree (Y, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + // Encrypt part2 + memset (nonce, 0, 12); // always zero + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, m_NoiseState->m_H, 32, m_NoiseState->m_CK + 32, nonce, payload, payloadSize + 16, true); + payloadSize += 16; + m_NoiseState->MixHash (payload, payloadSize); // h = SHA256(h || ciphertext); + m_SentHandshakePacket->payloadSize = payloadSize; + if (header.h.flags[0] > 1) + { + if (payloadSize > m_MaxPayloadSize - 48) + { + payloadSize = m_MaxPayloadSize - 48 - (m_Server.GetRng ()() % 16); + if (m_SentHandshakePacket->payloadSize - payloadSize < 24) + payloadSize -= 24; + } + else + header.h.flags[0] = 1; + } + // Encrypt header + header.ll[0] ^= CreateHeaderMask (m_Address->i, payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (kh2, payload + (payloadSize - 12)); + m_State = eSSU2SessionStateSessionConfirmedSent; + // send + m_Server.Send (header.buf, 16, part1, 48, payload, payloadSize, m_RemoteEndpoint); + m_SendPacketNum++; + if (m_SentHandshakePacket->payloadSize > payloadSize) + { + // send second fragment + m_SessionConfirmedFragment.reset (new HandshakePacket); + Header& header = m_SessionConfirmedFragment->header; + header.h.connID = m_DestConnID; // dest id + header.h.packetNum = 0; + header.h.type = eSSU2SessionConfirmed; + memset (header.h.flags, 0, 3); + header.h.flags[0] = 0x12; // frag 1, total fragments 2 + m_SessionConfirmedFragment->payloadSize = m_SentHandshakePacket->payloadSize - payloadSize; + memcpy (m_SessionConfirmedFragment->payload, m_SentHandshakePacket->payload + payloadSize, m_SessionConfirmedFragment->payloadSize); + m_SentHandshakePacket->payloadSize = payloadSize; + header.ll[0] ^= CreateHeaderMask (m_Address->i, m_SessionConfirmedFragment->payload + (m_SessionConfirmedFragment->payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (kh2, m_SessionConfirmedFragment->payload + (m_SessionConfirmedFragment->payloadSize - 12)); + m_Server.Send (header.buf, 16, m_SessionConfirmedFragment->payload, m_SessionConfirmedFragment->payloadSize, m_RemoteEndpoint); + } + } + + bool SSU2Session::ProcessSessionConfirmed (uint8_t * buf, size_t len) + { + // we are Bob + Header header; + memcpy (header.buf, buf, 16); + header.ll[0] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 24)); + uint8_t kh2[32]; + i2p::crypto::HKDF (m_NoiseState->m_CK, nullptr, 0, "SessionConfirmed", kh2, 32); // k_header_2 = HKDF(chainKey, ZEROLEN, "SessionConfirmed", 32) + header.ll[1] ^= CreateHeaderMask (kh2, buf + (len - 12)); + if (header.h.type != eSSU2SessionConfirmed) + { + LogPrint (eLogInfo, "SSU2: Unexpected message type ", (int)header.h.type, " instead ", (int)eSSU2SessionConfirmed); + // TODO: queue up + return true; + } + // packet num must be always zero + if (header.h.packetNum) + { + LogPrint (eLogError, "SSU2: Non zero packet number in SessionConfirmed"); + return false; + } + // check if fragmented + uint8_t numFragments = header.h.flags[0] & 0x0F; + if (numFragments > 1) + { + // fragmented + if (numFragments > 2) + { + LogPrint (eLogError, "SSU2: Too many fragments ", (int)numFragments, " in SessionConfirmed from ", m_RemoteEndpoint); + return false; + } + if (len < 32) + { + LogPrint (eLogWarning, "SSU2: SessionConfirmed fragment too short ", len); + if (m_SessionConfirmedFragment) m_SessionConfirmedFragment.reset (nullptr); + return false; + } + if (!(header.h.flags[0] & 0xF0)) + { + // first fragment + if (!m_SessionConfirmedFragment) + { + m_SessionConfirmedFragment.reset (new HandshakePacket); + m_SessionConfirmedFragment->header = header; + memcpy (m_SessionConfirmedFragment->payload, buf + 16, len - 16); + m_SessionConfirmedFragment->payloadSize = len - 16; + return true; // wait for second fragment + } + else if (m_SessionConfirmedFragment->isSecondFragment) + { + // we have second fragment + m_SessionConfirmedFragment->header = header; + memmove (m_SessionConfirmedFragment->payload + (len - 16), m_SessionConfirmedFragment->payload, m_SessionConfirmedFragment->payloadSize); + memcpy (m_SessionConfirmedFragment->payload, buf + 16, len - 16); + m_SessionConfirmedFragment->payloadSize += (len - 16); + m_SessionConfirmedFragment->isSecondFragment = false; + buf = m_SessionConfirmedFragment->payload - 16; + len = m_SessionConfirmedFragment->payloadSize + 16; + } + else + return true; + } + else + { + // second fragment + if (!m_SessionConfirmedFragment) + { + // out of sequence, save it + m_SessionConfirmedFragment.reset (new HandshakePacket); + memcpy (m_SessionConfirmedFragment->payload, buf + 16, len - 16); + m_SessionConfirmedFragment->payloadSize = len - 16; + m_SessionConfirmedFragment->isSecondFragment = true; + return true; + } + header = m_SessionConfirmedFragment->header; + if (m_SessionConfirmedFragment->payloadSize + (len - 16) <= SSU2_MAX_PACKET_SIZE*2) + { + memcpy (m_SessionConfirmedFragment->payload + m_SessionConfirmedFragment->payloadSize, buf + 16, len - 16); + m_SessionConfirmedFragment->payloadSize += (len - 16); + } + buf = m_SessionConfirmedFragment->payload - 16; + len = m_SessionConfirmedFragment->payloadSize + 16; + } + } + if (len < 80) + { + LogPrint (eLogWarning, "SSU2: SessionConfirmed message too short ", len); + if (m_SessionConfirmedFragment) m_SessionConfirmedFragment.reset (nullptr); + return false; + } + m_HandshakeInterval = i2p::util::GetMillisecondsSinceEpoch () - m_HandshakeInterval; + // KDF for Session Confirmed part 1 + m_NoiseState->MixHash (header.buf, 16); // h = SHA256(h || header) + // decrypt part1 + uint8_t nonce[12]; + CreateNonce (1, nonce); + uint8_t S[32]; + if (!i2p::crypto::AEADChaCha20Poly1305 (buf + 16, 32, m_NoiseState->m_H, 32, + m_NoiseState->m_CK + 32, nonce, S, 32, false)) + { + LogPrint (eLogWarning, "SSU2: SessionConfirmed part 1 AEAD verification failed "); + if (m_SessionConfirmedFragment) m_SessionConfirmedFragment.reset (nullptr); + return false; + } + m_NoiseState->MixHash (buf + 16, 48); // h = SHA256(h || ciphertext); + // KDF for Session Confirmed part 2 and data phase + uint8_t sharedSecret[32]; + m_EphemeralKeys->Agree (S, sharedSecret); + m_NoiseState->MixKey (sharedSecret); + KDFDataPhase (m_KeyDataReceive, m_KeyDataSend); + // decrypt part2 + memset (nonce, 0, 12); + uint8_t * payload = buf + 64; + std::vector decryptedPayload(len - 80); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 80, m_NoiseState->m_H, 32, + m_NoiseState->m_CK + 32, nonce, decryptedPayload.data (), decryptedPayload.size (), false)) + { + LogPrint (eLogWarning, "SSU2: SessionConfirmed part 2 AEAD verification failed "); + if (m_SessionConfirmedFragment) m_SessionConfirmedFragment.reset (nullptr); + return false; + } + m_NoiseState->MixHash (payload, len - 64); // h = SHA256(h || ciphertext); + if (m_SessionConfirmedFragment) m_SessionConfirmedFragment.reset (nullptr); + // payload + // handle RouterInfo block that must be first + if (decryptedPayload[0] != eSSU2BlkRouterInfo) + { + LogPrint (eLogError, "SSU2: SessionConfirmed unexpected first block type ", (int)decryptedPayload[0]); + return false; + } + size_t riSize = bufbe16toh (decryptedPayload.data () + 1); + if (riSize + 3 > decryptedPayload.size ()) + { + LogPrint (eLogError, "SSU2: SessionConfirmed RouterInfo block is too long ", riSize); + return false; + } + LogPrint (eLogDebug, "SSU2: RouterInfo in SessionConfirmed"); + auto ri = ExtractRouterInfo (decryptedPayload.data () + 3, riSize); + if (!ri) + { + LogPrint (eLogError, "SSU2: SessionConfirmed malformed RouterInfo block"); + return false; + } + auto ts = i2p::util::GetMillisecondsSinceEpoch(); + if (ts > ri->GetTimestamp () + i2p::data::NETDB_MIN_EXPIRATION_TIMEOUT*1000LL) // 90 minutes + { + LogPrint (eLogError, "SSU2: RouterInfo in SessionConfirmed is too old for ", (ts - ri->GetTimestamp ())/1000LL, " seconds"); + return false; + } + if (ts + i2p::data::NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < ri->GetTimestamp ()) // 2 minutes + { + LogPrint (eLogError, "SSU2: RouterInfo in SessionConfirmed is from future for ", (ri->GetTimestamp () - ts)/1000LL, " seconds"); + return false; + } + // update RouterInfo in netdb + auto ri1 = i2p::data::netdb.AddRouterInfo (ri->GetBuffer (), ri->GetBufferLen ()); // ri points to one from netdb now + if (!ri1) + { + LogPrint (eLogError, "SSU2: Couldn't update RouterInfo from SessionConfirmed in netdb"); + return false; + } + + bool isOlder = false; + if (ri->GetTimestamp () + i2p::data::NETDB_EXPIRATION_TIMEOUT_THRESHOLD*1000LL < ri1->GetTimestamp ()) + { + // received RouterInfo is older than one in netdb + isOlder = true; + if (ri->HasProfile ()) + { + auto profile = i2p::data::GetRouterProfile (ri->GetIdentHash ()); // retrieve profile + if (profile && profile->IsDuplicated ()) + return false; + } + } + ri = ri1; + + m_Address = m_RemoteEndpoint.address ().is_v6 () ? ri->GetSSU2V6Address () : ri->GetSSU2V4Address (); + if (!m_Address || memcmp (S, m_Address->s, 32)) + { + LogPrint (eLogError, "SSU2: Wrong static key in SessionConfirmed from ", i2p::data::GetIdentHashAbbreviation (ri->GetIdentHash ())); + return false; + } + if (m_Address->published && m_RemoteEndpoint.address () != m_Address->host && + (!m_RemoteEndpoint.address ().is_v6 () || + memcmp (m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data (), m_Address->host.to_v6 ().to_bytes ().data (), 8))) // temporary address + { + if (isOlder) // older router? + i2p::data::UpdateRouterProfile (ri->GetIdentHash (), + [](std::shared_ptr profile) + { + if (profile) profile->Duplicated (); // mark router as duplicated in profile + }); + else + LogPrint (eLogInfo, "SSU2: Host mismatch between published address ", m_Address->host, + " and actual endpoint ", m_RemoteEndpoint.address (), " from ", i2p::data::GetIdentHashAbbreviation (ri->GetIdentHash ())); + return false; + } + if (!m_Address->published) + { + if (ri->HasProfile ()) + ri->GetProfile ()->SetLastEndpoint (m_RemoteEndpoint); + else + i2p::data::UpdateRouterProfile (ri->GetIdentHash (), + [ep = m_RemoteEndpoint](std::shared_ptr profile) + { + if (profile) profile->SetLastEndpoint (ep); + }); + } + SetRemoteIdentity (ri->GetRouterIdentity ()); + AdjustMaxPayloadSize (); + m_Server.AddSessionByRouterHash (shared_from_this ()); // we know remote router now + m_RemoteTransports = ri->GetCompatibleTransports (false); + m_RemotePeerTestTransports = 0; + if (ri->IsSSU2PeerTesting (true)) m_RemotePeerTestTransports |= i2p::data::RouterInfo::eSSU2V4; + if (ri->IsSSU2PeerTesting (false)) m_RemotePeerTestTransports |= i2p::data::RouterInfo::eSSU2V6; + m_RemoteVersion = ri->GetVersion (); + + // handle other blocks + HandlePayload (decryptedPayload.data () + riSize + 3, decryptedPayload.size () - riSize - 3); + Established (); + + SendQuickAck (); + + return true; + } + + void SSU2Session::KDFDataPhase (uint8_t * keydata_ab, uint8_t * keydata_ba) + { + uint8_t keydata[64]; + i2p::crypto::HKDF (m_NoiseState->m_CK, nullptr, 0, "", keydata); // keydata = HKDF(chainKey, ZEROLEN, "", 64) + // ab + i2p::crypto::HKDF (keydata, nullptr, 0, "HKDFSSU2DataKeys", keydata_ab); // keydata_ab = HKDF(keydata, ZEROLEN, "HKDFSSU2DataKeys", 64) + // ba + i2p::crypto::HKDF (keydata + 32, nullptr, 0, "HKDFSSU2DataKeys", keydata_ba); // keydata_ba = HKDF(keydata + 32, ZEROLEN, "HKDFSSU2DataKeys", 64) + } + + void SSU2Session::SendTokenRequest () + { + // we are Alice + Header header; + uint8_t h[32], payload[41]; + // fill packet + header.h.connID = m_DestConnID; // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2TokenRequest; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (h, header.buf, 16); + memcpy (h + 16, &m_SourceConnID, 8); // source id + memset (h + 24, 0, 8); // zero token + // payload + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + size_t payloadSize = 7; + payloadSize += CreatePaddingBlock (payload + payloadSize, 25 - payloadSize, 1); + // encrypt + uint8_t nonce[12]; + CreateNonce (be32toh (header.h.packetNum), nonce); + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, h, 32, m_Address->i, nonce, payload, payloadSize + 16, true); + payloadSize += 16; + header.ll[0] ^= CreateHeaderMask (m_Address->i, payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (m_Address->i, payload + (payloadSize - 12)); + memset (nonce, 0, 12); + m_Server.ChaCha20 (h + 16, 16, m_Address->i, nonce, h + 16); + // send + if (m_Server.AddPendingOutgoingSession (shared_from_this ())) + m_Server.Send (header.buf, 16, h + 16, 16, payload, payloadSize, m_RemoteEndpoint); + else + { + LogPrint (eLogWarning, "SSU2: TokenRequest request to ", m_RemoteEndpoint, " already pending"); + Terminate (); + } + } + + void SSU2Session::ProcessTokenRequest (Header& header, uint8_t * buf, size_t len) + { + // we are Bob + if (len < 48) + { + LogPrint (eLogWarning, "SSU2: Incorrect TokenRequest len ", len); + return; + } + uint8_t nonce[12] = {0}; + uint8_t h[32]; + memcpy (h, header.buf, 16); + m_Server.ChaCha20 (buf + 16, 16, i2p::context.GetSSU2IntroKey (), nonce, h + 16); + memcpy (&m_DestConnID, h + 16, 8); + // decrypt + CreateNonce (be32toh (header.h.packetNum), nonce); + uint8_t * payload = buf + 32; + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 48, h, 32, + i2p::context.GetSSU2IntroKey (), nonce, payload, len - 48, false)) + { + LogPrint (eLogWarning, "SSU2: TokenRequest AEAD verification failed "); + return; + } + // payload + m_State = eSSU2SessionStateTokenRequestReceived; + HandlePayload (payload, len - 48); + SendRetry (); + } + + void SSU2Session::SendRetry () + { + // we are Bob + Header header; + uint8_t h[32], payload[72]; + // fill packet + header.h.connID = m_DestConnID; // dest id + RAND_bytes (header.buf + 8, 4); // random packet num + header.h.type = eSSU2Retry; + header.h.flags[0] = 2; // ver + header.h.flags[1] = (uint8_t)i2p::context.GetNetID (); // netID + header.h.flags[2] = 0; // flag + memcpy (h, header.buf, 16); + memcpy (h + 16, &m_SourceConnID, 8); // source id + uint64_t token = 0; + if (m_TerminationReason == eSSU2TerminationReasonNormalClose) + token = m_Server.GetIncomingToken (m_RemoteEndpoint); + memcpy (h + 24, &token, 8); // token + // payload + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + size_t payloadSize = 7; + payloadSize += CreateAddressBlock (payload + payloadSize, 56 - payloadSize, m_RemoteEndpoint); + if (m_TerminationReason != eSSU2TerminationReasonNormalClose) + payloadSize += CreateTerminationBlock (payload + payloadSize, 56 - payloadSize); + payloadSize += CreatePaddingBlock (payload + payloadSize, 56 - payloadSize); + // encrypt + uint8_t nonce[12]; + CreateNonce (be32toh (header.h.packetNum), nonce); + i2p::crypto::AEADChaCha20Poly1305 (payload, payloadSize, h, 32, i2p::context.GetSSU2IntroKey (), nonce, payload, payloadSize + 16, true); + payloadSize += 16; + header.ll[0] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), payload + (payloadSize - 24)); + header.ll[1] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), payload + (payloadSize - 12)); + memset (nonce, 0, 12); + m_Server.ChaCha20 (h + 16, 16, i2p::context.GetSSU2IntroKey (), nonce, h + 16); + // send + m_Server.Send (header.buf, 16, h + 16, 16, payload, payloadSize, m_RemoteEndpoint); + } + + bool SSU2Session::ProcessRetry (uint8_t * buf, size_t len) + { + // we are Alice + Header header; + memcpy (header.buf, buf, 16); + header.ll[0] ^= CreateHeaderMask (m_Address->i, buf + (len - 24)); + header.ll[1] ^= CreateHeaderMask (m_Address->i, buf + (len - 12)); + if (header.h.type != eSSU2Retry) + { + LogPrint (eLogWarning, "SSU2: Unexpected message type ", (int)header.h.type, " instead ", (int)eSSU2Retry); + return false; + } + if (len < 48) + { + LogPrint (eLogWarning, "SSU2: Retry message too short ", len); + return false; + } + uint8_t nonce[12] = {0}; + uint64_t headerX[2]; // sourceConnID, token + m_Server.ChaCha20 (buf + 16, 16, m_Address->i, nonce, (uint8_t *)headerX); + uint64_t token = headerX[1]; + if (token) + m_Server.UpdateOutgoingToken (m_RemoteEndpoint, token, i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_TIMEOUT); + // decrypt and handle payload + uint8_t * payload = buf + 32; + CreateNonce (be32toh (header.h.packetNum), nonce); + uint8_t h[32]; + memcpy (h, header.buf, 16); + memcpy (h + 16, &headerX, 16); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 48, h, 32, + m_Address->i, nonce, payload, len - 48, false)) + { + LogPrint (eLogWarning, "SSU2: Retry AEAD verification failed"); + return false; + } + m_State = eSSU2SessionStateTokenReceived; + HandlePayload (payload, len - 48); + if (!token) + { + // we should handle payload even for zero token to handle Datetime block and adjust clock in case of clock skew + LogPrint (eLogWarning, "SSU2: Retry token is zero"); + return false; + } + InitNoiseXKState1 (*m_NoiseState, m_Address->s); // reset Noise TODO: check state + SendSessionRequest (token); + return true; + } + + bool SSU2Session::ProcessHolePunch (uint8_t * buf, size_t len) + { + // we are Alice + LogPrint (eLogDebug, "SSU2: HolePunch"); + Header header; + memcpy (header.buf, buf, 16); + header.ll[0] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 24)); + header.ll[1] ^= CreateHeaderMask (i2p::context.GetSSU2IntroKey (), buf + (len - 12)); + if (header.h.type != eSSU2HolePunch) + { + LogPrint (eLogWarning, "SSU2: Unexpected message type ", (int)header.h.type, " instead ", (int)eSSU2HolePunch); + return false; + } + if (len < 48) + { + LogPrint (eLogWarning, "SSU2: HolePunch message too short ", len); + return false; + } + uint8_t nonce[12] = {0}; + uint64_t headerX[2]; // sourceConnID, token + m_Server.ChaCha20 (buf + 16, 16, i2p::context.GetSSU2IntroKey (), nonce, (uint8_t *)headerX); + m_DestConnID = headerX[0]; + // decrypt and handle payload + uint8_t * payload = buf + 32; + CreateNonce (be32toh (header.h.packetNum), nonce); + uint8_t h[32]; + memcpy (h, header.buf, 16); + memcpy (h + 16, &headerX, 16); + if (!i2p::crypto::AEADChaCha20Poly1305 (payload, len - 48, h, 32, + i2p::context.GetSSU2IntroKey (), nonce, payload, len - 48, false)) + { + LogPrint (eLogWarning, "SSU2: HolePunch AEAD verification failed "); + return false; + } + HandlePayload (payload, len - 48); + m_IsDataReceived = false; + // connect to Charlie + ConnectAfterIntroduction (); + + return true; + } + + bool SSU2Session::ProcessPeerTest (uint8_t * buf, size_t len) + { + LogPrint (eLogWarning, "SSU2: Unexpected peer test message for this session type"); + return false; + } + + uint32_t SSU2Session::SendData (const uint8_t * buf, size_t len, uint8_t flags) + { + if (len < 8) + { + LogPrint (eLogWarning, "SSU2: Data message payload is too short ", (int)len); + return 0; + } + Header header; + header.h.connID = m_DestConnID; + header.h.packetNum = htobe32 (m_SendPacketNum); + header.h.type = eSSU2Data; + memset (header.h.flags, 0, 3); + if (flags) header.h.flags[0] = flags; + uint8_t nonce[12]; + CreateNonce (m_SendPacketNum, nonce); + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + m_Server.AEADChaCha20Poly1305Encrypt (buf, len, header.buf, 16, m_KeyDataSend, nonce, payload, SSU2_MAX_PACKET_SIZE); + header.ll[0] ^= CreateHeaderMask (m_Address->i, payload + (len - 8)); + header.ll[1] ^= CreateHeaderMask (m_KeyDataSend + 32, payload + (len + 4)); + m_Server.Send (header.buf, 16, payload, len + 16, m_RemoteEndpoint); + m_SendPacketNum++; + UpdateNumSentBytes (len + 32); + return m_SendPacketNum - 1; + } + + void SSU2Session::ProcessData (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& from) + { + Header header; + header.ll[0] = m_SourceConnID; + memcpy (header.buf + 8, buf + 8, 8); + header.ll[1] ^= CreateHeaderMask (m_KeyDataReceive + 32, buf + (len - 12)); + if (header.h.type != eSSU2Data) + { + LogPrint (eLogWarning, "SSU2: Unexpected message type ", (int)header.h.type, " instead ", (int)eSSU2Data); + if (IsEstablished ()) + SendQuickAck (); // in case it was SessionConfirmed + else + ResendHandshakePacket (); // assume we receive + return; + } + if (from != m_RemoteEndpoint && !i2p::transport::transports.IsInReservedRange (from.address ()) && + (!m_PathChallenge || from != m_PathChallenge->second)) // path challenge was not sent to this endpoint yet + { + LogPrint (eLogInfo, "SSU2: Remote endpoint update ", m_RemoteEndpoint, "->", from); + SendPathChallenge (from); + } + if (len < 32) + { + LogPrint (eLogWarning, "SSU2: Data message too short ", len); + return; + } + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = len - 32; + uint32_t packetNum = be32toh (header.h.packetNum); + uint8_t nonce[12]; + CreateNonce (packetNum, nonce); + if (!m_Server.AEADChaCha20Poly1305Decrypt (buf + 16, payloadSize, header.buf, 16, + m_KeyDataReceive, nonce, payload, payloadSize)) + { + LogPrint (eLogWarning, "SSU2: Data AEAD verification failed "); + return; + } + UpdateNumReceivedBytes (len); + if (header.h.flags[0] & SSU2_FLAG_IMMEDIATE_ACK_REQUESTED) m_IsDataReceived = true; + if (!packetNum || UpdateReceivePacketNum (packetNum)) + HandlePayload (payload, payloadSize); + } + + void SSU2Session::HandlePayload (const uint8_t * buf, size_t len) + { + size_t offset = 0; + while (offset < len) + { + uint8_t blk = buf[offset]; + offset++; + auto size = bufbe16toh (buf + offset); + offset += 2; + LogPrint (eLogDebug, "SSU2: Block type ", (int)blk, " of size ", size); + if (offset + size > len) + { + LogPrint (eLogError, "SSU2: Unexpected block length ", size); + break; + } + switch (blk) + { + case eSSU2BlkDateTime: + LogPrint (eLogDebug, "SSU2: Datetime"); + HandleDateTime (buf + offset, size); + break; + case eSSU2BlkOptions: + LogPrint (eLogDebug, "SSU2: Options"); + break; + case eSSU2BlkRouterInfo: + LogPrint (eLogDebug, "SSU2: RouterInfo"); + HandleRouterInfo (buf + offset, size); + break; + case eSSU2BlkI2NPMessage: + { + LogPrint (eLogDebug, "SSU2: I2NP message"); + auto nextMsg = (buf[offset] == eI2NPTunnelData) ? NewI2NPTunnelMessage (true) : NewI2NPShortMessage (); + nextMsg->len = nextMsg->offset + size + 7; // 7 more bytes for full I2NP header + memcpy (nextMsg->GetNTCP2Header (), buf + offset, size); + nextMsg->FromNTCP2 (); // SSU2 has the same format as NTCP2 + HandleI2NPMsg (std::move (nextMsg)); + m_IsDataReceived = true; + break; + } + case eSSU2BlkFirstFragment: + LogPrint (eLogDebug, "SSU2: First fragment"); + HandleFirstFragment (buf + offset, size); + m_IsDataReceived = true; + break; + case eSSU2BlkFollowOnFragment: + LogPrint (eLogDebug, "SSU2: Follow-on fragment"); + HandleFollowOnFragment (buf + offset, size); + m_IsDataReceived = true; + break; + case eSSU2BlkTermination: + { + if (size >= 9) + { + uint8_t rsn = buf[offset + 8]; // reason + LogPrint (eLogDebug, "SSU2: Termination reason=", (int)rsn); + if (IsEstablished () && rsn != eSSU2TerminationReasonTerminationReceived) + RequestTermination (eSSU2TerminationReasonTerminationReceived); + else if (m_State != eSSU2SessionStateTerminated) + { + if (m_State == eSSU2SessionStateClosing && rsn == eSSU2TerminationReasonTerminationReceived) + m_State = eSSU2SessionStateClosingConfirmed; + Done (); + } + } + else + LogPrint(eLogWarning, "SSU2: Unexpected termination block size ", size); + break; + } + case eSSU2BlkRelayRequest: + LogPrint (eLogDebug, "SSU2: RelayRequest"); + HandleRelayRequest (buf + offset, size); + m_IsDataReceived = true; + break; + case eSSU2BlkRelayResponse: + LogPrint (eLogDebug, "SSU2: RelayResponse"); + HandleRelayResponse (buf + offset, size); + m_IsDataReceived = true; + break; + case eSSU2BlkRelayIntro: + LogPrint (eLogDebug, "SSU2: RelayIntro"); + HandleRelayIntro (buf + offset, size); + m_IsDataReceived = true; + break; + case eSSU2BlkPeerTest: + LogPrint (eLogDebug, "SSU2: PeerTest msg=", (int)buf[offset], " code=", (int)buf[offset+1]); + HandlePeerTest (buf + offset, size); + if (buf[offset] < 5) + m_IsDataReceived = true; + break; + case eSSU2BlkNextNonce: + break; + case eSSU2BlkAck: + LogPrint (eLogDebug, "SSU2: Ack"); + HandleAck (buf + offset, size); + break; + case eSSU2BlkAddress: + LogPrint (eLogDebug, "SSU2: Address"); + HandleAddress (buf + offset, size); + break; + case eSSU2BlkIntroKey: + break; + case eSSU2BlkRelayTagRequest: + LogPrint (eLogDebug, "SSU2: RelayTagRequest"); + if (!m_RelayTag) + { + auto addr = FindLocalAddress (); + if (addr && addr->IsIntroducer ()) + { + RAND_bytes ((uint8_t *)&m_RelayTag, 4); + m_Server.AddRelay (m_RelayTag, shared_from_this ()); + } + } + break; + case eSSU2BlkRelayTag: + LogPrint (eLogDebug, "SSU2: RelayTag"); + m_RelayTag = bufbe32toh (buf + offset); + break; + case eSSU2BlkNewToken: + { + LogPrint (eLogDebug, "SSU2: New token"); + uint64_t token; + memcpy (&token, buf + offset + 4, 8); + m_Server.UpdateOutgoingToken (m_RemoteEndpoint, token, bufbe32toh (buf + offset)); + break; + } + case eSSU2BlkPathChallenge: + LogPrint (eLogDebug, "SSU2: Path challenge"); + SendPathResponse (buf + offset, size); + break; + case eSSU2BlkPathResponse: + { + LogPrint (eLogDebug, "SSU2: Path response"); + if (m_PathChallenge) + { + if (buf64toh (buf + offset) == m_PathChallenge->first) + { + m_RemoteEndpoint = m_PathChallenge->second; + m_PathChallenge.reset (nullptr); + } + } + break; + } + case eSSU2BlkFirstPacketNumber: + break; + case eSSU2BlkPadding: + LogPrint (eLogDebug, "SSU2: Padding"); + break; + default: + LogPrint (eLogWarning, "SSU2: Unknown block type ", (int)blk); + } + offset += size; + } + } + + void SSU2Session::HandleDateTime (const uint8_t * buf, size_t len) + { + int64_t offset = (int64_t)i2p::util::GetSecondsSinceEpoch () - (int64_t)bufbe32toh (buf); + switch (m_State) + { + case eSSU2SessionStateSessionRequestReceived: + case eSSU2SessionStateTokenRequestReceived: + case eSSU2SessionStateEstablished: + if (std::abs (offset) > SSU2_CLOCK_SKEW) + m_TerminationReason = eSSU2TerminationReasonClockSkew; + break; + case eSSU2SessionStateSessionCreatedReceived: + case eSSU2SessionStateTokenReceived: + if ((m_RemoteEndpoint.address ().is_v4 () && i2p::context.GetTesting ()) || + (m_RemoteEndpoint.address ().is_v6 () && i2p::context.GetTestingV6 ())) + { + if (m_Server.IsSyncClockFromPeers ()) + { + if (std::abs (offset) > SSU2_CLOCK_THRESHOLD) + { + LogPrint (eLogWarning, "SSU2: Time offset ", offset, " from ", m_RemoteEndpoint); + m_Server.AdjustTimeOffset (-offset, GetRemoteIdentity ()); + } + else + m_Server.AdjustTimeOffset (0, nullptr); + } + else if (std::abs (offset) > SSU2_CLOCK_SKEW) + { + LogPrint (eLogError, "SSU2: Clock skew detected ", offset, ". Check your clock"); + i2p::context.SetError (eRouterErrorClockSkew); + } + } + break; + default: ; + }; + } + + void SSU2Session::HandleRouterInfo (const uint8_t * buf, size_t len) + { + if (len < 2) return; + // not from SessionConfirmed, we must add it instantly to use in next block + std::shared_ptr newRi; + if (buf[0] & SSU2_ROUTER_INFO_FLAG_GZIP) // compressed? + { + auto ri = ExtractRouterInfo (buf, len); + if (ri) + newRi = i2p::data::netdb.AddRouterInfo (ri->GetBuffer (), ri->GetBufferLen ()); + } + else // use buffer directly. TODO: handle frag + newRi = i2p::data::netdb.AddRouterInfo (buf + 2, len - 2); + + if (newRi) + { + auto remoteIdentity = GetRemoteIdentity (); + if (remoteIdentity && remoteIdentity->GetIdentHash () == newRi->GetIdentHash ()) + { + // peer's RouterInfo update + SetRemoteIdentity (newRi->GetIdentity ()); + auto address = m_RemoteEndpoint.address ().is_v6 () ? newRi->GetSSU2V6Address () : newRi->GetSSU2V4Address (); + if (address) + { + m_Address = address; + if (IsOutgoing () && m_RelayTag && !address->IsIntroducer ()) + m_RelayTag = 0; // not longer introducer + } + } + } + } + + void SSU2Session::HandleAck (const uint8_t * buf, size_t len) + { + if (m_State == eSSU2SessionStateSessionConfirmedSent) + { + Established (); + return; + } + if (m_SentPackets.empty ()) return; + if (len < 5) return; + // acnt + uint32_t ackThrough = bufbe32toh (buf); + uint32_t firstPacketNum = ackThrough > buf[4] ? ackThrough - buf[4] : 0; + HandleAckRange (firstPacketNum, ackThrough, i2p::util::GetMillisecondsSinceEpoch ()); // acnt + // ranges + len -= 5; + if (!len || m_SentPackets.empty ()) return; // don't handle ranges if nothing to acknowledge + const uint8_t * ranges = buf + 5; + while (len > 0 && firstPacketNum && ackThrough - firstPacketNum < SSU2_MAX_NUM_ACK_PACKETS) + { + uint32_t lastPacketNum = firstPacketNum - 1; + if (*ranges > lastPacketNum) break; + lastPacketNum -= *ranges; ranges++; // nacks + if (*ranges > lastPacketNum + 1) break; + firstPacketNum = lastPacketNum - *ranges + 1; ranges++; // acks + len -= 2; + HandleAckRange (firstPacketNum, lastPacketNum, 0); + } + } + + void SSU2Session::HandleAckRange (uint32_t firstPacketNum, uint32_t lastPacketNum, uint64_t ts) + { + if (firstPacketNum > lastPacketNum) return; + auto it = m_SentPackets.begin (); + while (it != m_SentPackets.end () && it->first < firstPacketNum) it++; // find first acked packet + if (it == m_SentPackets.end () || it->first > lastPacketNum) return; // not found + auto it1 = it; + int numPackets = 0; + while (it1 != m_SentPackets.end () && it1->first <= lastPacketNum) + { + if (ts && !it1->second->numResends) + { + if (ts > it1->second->sendTime) + { + auto rtt = ts - it1->second->sendTime; + if (m_RTT != SSU2_UNKNOWN_RTT) + m_RTT = SSU2_RTT_EWMA_ALPHA * rtt + (1.0 - SSU2_RTT_EWMA_ALPHA) * m_RTT; + else + m_RTT = rtt; + m_RTO = m_RTT*SSU2_kAPPA; + m_MsgLocalExpirationTimeout = std::max (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MIN, + std::min (I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_MAX, + (unsigned int)(m_RTT * 1000 * I2NP_MESSAGE_LOCAL_EXPIRATION_TIMEOUT_FACTOR))); + m_MsgLocalSemiExpirationTimeout = m_MsgLocalExpirationTimeout / 2; + if (m_RTO < SSU2_MIN_RTO) m_RTO = SSU2_MIN_RTO; + if (m_RTO > SSU2_MAX_RTO) m_RTO = SSU2_MAX_RTO; + } + ts = 0; // update RTT one time per range + } + it1++; + numPackets++; + } + m_SentPackets.erase (it, it1); + if (numPackets > 0) + { + m_WindowSize += numPackets; + if (m_WindowSize > SSU2_MAX_WINDOW_SIZE) m_WindowSize = SSU2_MAX_WINDOW_SIZE; + } + } + + void SSU2Session::HandleAddress (const uint8_t * buf, size_t len) + { + boost::asio::ip::udp::endpoint ep; + if (ExtractEndpoint (buf, len, ep)) + { + LogPrint (eLogInfo, "SSU2: Our external address is ", ep); + if (!i2p::transport::transports.IsInReservedRange (ep.address ())) + { + i2p::context.UpdateAddress (ep.address ()); + // check our port + bool isV4 = ep.address ().is_v4 (); + if (ep.port () != m_Server.GetPort (isV4)) + { + LogPrint (eLogInfo, "SSU2: Our port ", ep.port (), " received from ", m_RemoteEndpoint, " is different from ", m_Server.GetPort (isV4)); + if (isV4) + { + if (i2p::context.GetTesting ()) + i2p::context.SetError (eRouterErrorSymmetricNAT); + else if (m_State == eSSU2SessionStatePeerTest) + i2p::context.SetError (eRouterErrorFullConeNAT); + } + else + { + if (i2p::context.GetTestingV6 ()) + i2p::context.SetErrorV6 (eRouterErrorSymmetricNAT); + else if (m_State == eSSU2SessionStatePeerTest) + i2p::context.SetErrorV6 (eRouterErrorFullConeNAT); + } + } + else + { + if (isV4) + { + if (i2p::context.GetError () == eRouterErrorSymmetricNAT) + { + if (m_State == eSSU2SessionStatePeerTest) + i2p::context.SetStatus (eRouterStatusOK); + i2p::context.SetError (eRouterErrorNone); + } + else if (i2p::context.GetError () == eRouterErrorFullConeNAT) + i2p::context.SetError (eRouterErrorNone); + } + else + { + if (i2p::context.GetErrorV6 () == eRouterErrorSymmetricNAT) + { + if (m_State == eSSU2SessionStatePeerTest) + i2p::context.SetStatusV6 (eRouterStatusOK); + i2p::context.SetErrorV6 (eRouterErrorNone); + } + else if (i2p::context.GetErrorV6 () == eRouterErrorFullConeNAT) + i2p::context.SetErrorV6 (eRouterErrorNone); + } + } + } + } + } + + void SSU2Session::HandleFirstFragment (const uint8_t * buf, size_t len) + { + auto msg = (buf[0] == eI2NPTunnelData) ? NewI2NPTunnelMessage (true) : NewI2NPShortMessage (); + uint32_t msgID; memcpy (&msgID, buf + 1, 4); + // same format as I2NP message block + msg->len = msg->offset + len + 7; + memcpy (msg->GetNTCP2Header (), buf, len); + std::shared_ptr m; + bool found = false; + auto it = m_IncompleteMessages.find (msgID); + if (it != m_IncompleteMessages.end ()) + { + found = true; + m = it->second; + } + else + { + m = m_Server.GetIncompleteMessagesPool ().AcquireShared (); + m_IncompleteMessages.emplace (msgID, m); + } + m->msg = msg; + m->nextFragmentNum = 1; + m->lastFragmentInsertTime = i2p::util::GetSecondsSinceEpoch (); + if (found && m->ConcatOutOfSequenceFragments ()) + { + // we have all follow-on fragments already + m->msg->FromNTCP2 (); + HandleI2NPMsg (std::move (m->msg)); + m_IncompleteMessages.erase (it); + } + } + + void SSU2Session::HandleFollowOnFragment (const uint8_t * buf, size_t len) + { + if (len < 5) return; + uint8_t fragmentNum = buf[0] >> 1; + if (!fragmentNum || fragmentNum >= SSU2_MAX_NUM_FRAGMENTS) + { + LogPrint (eLogWarning, "SSU2: Invalid follow-on fragment num ", fragmentNum); + return; + } + bool isLast = buf[0] & 0x01; + uint32_t msgID; memcpy (&msgID, buf + 1, 4); + auto it = m_IncompleteMessages.find (msgID); + if (it != m_IncompleteMessages.end ()) + { + if (fragmentNum < it->second->nextFragmentNum) return; // duplicate + if (it->second->nextFragmentNum == fragmentNum && fragmentNum < SSU2_MAX_NUM_FRAGMENTS && + it->second->msg) + { + // in sequence + it->second->AttachNextFragment (buf + 5, len - 5); + if (isLast) + { + it->second->msg->FromNTCP2 (); + HandleI2NPMsg (std::move (it->second->msg)); + m_IncompleteMessages.erase (it); + } + else + { + if (it->second->ConcatOutOfSequenceFragments ()) + { + HandleI2NPMsg (std::move (it->second->msg)); + m_IncompleteMessages.erase (it); + } + else + it->second->lastFragmentInsertTime = i2p::util::GetSecondsSinceEpoch (); + } + return; + } + } + else + { + // follow-on fragment before first fragment + auto msg = m_Server.GetIncompleteMessagesPool ().AcquireShared (); + msg->nextFragmentNum = 0; + it = m_IncompleteMessages.emplace (msgID, msg).first; + } + // insert out of sequence fragment + auto fragment = m_Server.GetFragmentsPool ().AcquireShared (); + memcpy (fragment->buf, buf + 5, len -5); + fragment->len = len - 5; + fragment->fragmentNum = fragmentNum; + fragment->isLast = isLast; + it->second->AddOutOfSequenceFragment (fragment); + } + + void SSU2Session::HandleRelayRequest (const uint8_t * buf, size_t len) + { + // we are Bob + if (len < 9) return; + auto mts = i2p::util::GetMillisecondsSinceEpoch (); + uint32_t nonce = bufbe32toh (buf + 1); // nonce + uint32_t relayTag = bufbe32toh (buf + 5); // relay tag + auto session = m_Server.FindRelaySession (relayTag); + if (!session) + { + LogPrint (eLogWarning, "SSU2: RelayRequest session with relay tag ", relayTag, " not found"); + // send relay response back to Alice + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + packet->payloadSize = CreateAckBlock (packet->payload, m_MaxPayloadSize); + packet->payloadSize += CreateRelayResponseBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize, + eSSU2RelayResponseCodeBobRelayTagNotFound, nonce, 0, false); + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + if (m_RemoteVersion >= SSU2_MIN_RELAY_RESPONSE_RESEND_VERSION) + { + // sometimes Alice doesn't ack this RelayResponse in older versions + packet->sendTime = mts; + m_SentPackets.emplace (packetNum, packet); + } + return; + } + if (session->m_RelaySessions.emplace (nonce, std::make_pair (shared_from_this (), mts/1000)).second) + { + // send relay intro to Charlie + auto r = i2p::data::netdb.FindRouter (GetRemoteIdentity ()->GetIdentHash ()); // Alice's RI + if (r && (r->IsUnreachable () || !i2p::data::netdb.PopulateRouterInfoBuffer (r))) r = nullptr; + if (!r) LogPrint (eLogWarning, "SSU2: RelayRequest Alice's router info not found"); + + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + packet->payloadSize = r ? CreateRouterInfoBlock (packet->payload, m_MaxPayloadSize - len - 32, r) : 0; + if (!packet->payloadSize && r) + session->SendFragmentedMessage (CreateDatabaseStoreMsg (r)); + packet->payloadSize += CreateRelayIntroBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize, buf + 1, len - 1); + if (packet->payloadSize < m_MaxPayloadSize) + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = session->SendData (packet->payload, packet->payloadSize); + packet->sendTime = mts; + // Charlie always responds with RelayResponse + session->m_SentPackets.emplace (packetNum, packet); + } + else + LogPrint (eLogInfo, "SSU2: Relay request nonce ", nonce, " already exists. Ignore"); + } + + void SSU2Session::HandleRelayIntro (const uint8_t * buf, size_t len, int attempts) + { + // we are Charlie + if (len < 47) return; + SSU2RelayResponseCode code = eSSU2RelayResponseCodeAccept; + boost::asio::ip::udp::endpoint ep; + std::shared_ptr addr; + auto r = i2p::data::netdb.FindRouter (buf + 1); // Alice + if (r) + { + SignedData<128> s; + s.Insert ((const uint8_t *)"RelayRequestData", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (i2p::context.GetIdentHash (), 32); // chash + s.Insert (buf + 33, 14); // nonce, relay tag, timestamp, ver, asz + uint8_t asz = buf[46]; + if (asz + 47 + r->GetIdentity ()->GetSignatureLen () > len) + { + LogPrint (eLogWarning, "SSU2: Malformed RelayIntro len=", len); + return; + } + s.Insert (buf + 47, asz); // Alice Port, Alice IP + if (s.Verify (r->GetIdentity (), buf + 47 + asz)) + { + // obtain and check endpoint and address for HolePunch + if (ExtractEndpoint (buf + 47, asz, ep)) + { + if (!ep.address ().is_unspecified () && ep.port ()) + { + if (m_Server.IsSupported (ep.address ())) + { + addr = ep.address ().is_v6 () ? r->GetSSU2V6Address () : r->GetSSU2V4Address (); + if (!addr) + { + LogPrint (eLogWarning, "SSU2: RelayIntro address for endpoint not found"); + code = eSSU2RelayResponseCodeCharlieAliceIsUnknown; + } + } + else + { + LogPrint (eLogWarning, "SSU2: RelayIntro unsupported address"); + code = eSSU2RelayResponseCodeCharlieUnsupportedAddress; + } + } + else + { + LogPrint (eLogWarning, "SSU2: RelayIntro invalid endpoint"); + code = eSSU2RelayResponseCodeCharlieAliceIsUnknown; + } + } + else + { + LogPrint (eLogWarning, "SSU2: RelayIntro can't extract endpoint"); + code = eSSU2RelayResponseCodeCharlieAliceIsUnknown; + } + } + else + { + LogPrint (eLogWarning, "SSU2: RelayIntro signature verification failed"); + code = eSSU2RelayResponseCodeCharlieSignatureFailure; + } + } + else if (!attempts) + { + // RouterInfo might come in the next packet, try again + auto vec = std::make_shared >(len); + memcpy (vec->data (), buf, len); + auto s = shared_from_this (); + boost::asio::post (m_Server.GetService (), [s, vec, attempts]() + { + LogPrint (eLogDebug, "SSU2: RelayIntro attempt ", attempts + 1); + s->HandleRelayIntro (vec->data (), vec->size (), attempts + 1); + }); + return; + } + else + { + LogPrint (eLogWarning, "SSU2: RelayIntro unknown router to introduce"); + code = eSSU2RelayResponseCodeCharlieAliceIsUnknown; + } + // send relay response to Bob + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + uint32_t nonce = bufbe32toh (buf + 33); + packet->payloadSize = CreateRelayResponseBlock (packet->payload, m_MaxPayloadSize, + code, nonce, m_Server.GetIncomingToken (ep), ep.address ().is_v4 ()); + if (code == eSSU2RelayResponseCodeAccept && addr) + { + // send HolePunch + auto holePunchSession = std::make_shared(m_Server, nonce, ep, addr); + if (m_Server.AddSession (holePunchSession)) + holePunchSession->SendHolePunch (packet->payload, packet->payloadSize); // relay response block + else + { + LogPrint (eLogInfo, "SSU2: Relay intro nonce ", nonce, " already exists. Ignore"); + return; + } + } + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + if (m_RemoteVersion >= SSU2_MIN_RELAY_RESPONSE_RESEND_VERSION) + { + // sometimes Bob doesn't ack this RelayResponse in older versions + packet->sendTime = i2p::util::GetMillisecondsSinceEpoch (); + m_SentPackets.emplace (packetNum, packet); + } + } + + void SSU2Session::HandleRelayResponse (const uint8_t * buf, size_t len) + { + if (len < 6) return; + uint32_t nonce = bufbe32toh (buf + 2); + if (m_State == eSSU2SessionStateIntroduced) + { + // HolePunch from Charlie + // TODO: verify address and signature + // verify nonce + if (~htobe64 (((uint64_t)nonce << 32) | nonce) != m_DestConnID) + LogPrint (eLogWarning, "SSU2: Relay response nonce mismatch ", nonce, " connID=", m_DestConnID); + if (len >= 8) + { + // new token + uint64_t token; + memcpy (&token, buf + len - 8, 8); + m_Server.UpdateOutgoingToken (m_RemoteEndpoint, token, i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_TIMEOUT); + } + return; + } + auto it = m_RelaySessions.find (nonce); + if (it != m_RelaySessions.end ()) + { + auto relaySession = it->second.first; + m_RelaySessions.erase (it); + if (relaySession && relaySession->IsEstablished ()) + { + // we are Bob, message from Charlie + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + uint8_t * payload = packet->payload; + payload[0] = eSSU2BlkRelayResponse; + htobe16buf (payload + 1, len); + memcpy (payload + 3, buf, len); // forward to Alice as is + packet->payloadSize = len + 3; + packet->payloadSize += CreatePaddingBlock (payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = relaySession->SendData (packet->payload, packet->payloadSize); + if (m_RemoteVersion >= SSU2_MIN_RELAY_RESPONSE_RESEND_VERSION) + { + // sometimes Alice doesn't ack this RelayResponse in older versions + packet->sendTime = i2p::util::GetMillisecondsSinceEpoch (); + relaySession->m_SentPackets.emplace (packetNum, packet); + } + } + else + { + // we are Alice, message from Bob + if (!buf[1]) // status code accepted? + { + // verify signature + uint8_t csz = (len >= 12) ? buf[11] : 0; + if (csz + 12 + relaySession->GetRemoteIdentity ()->GetSignatureLen () > len) + { + LogPrint (eLogWarning, "SSU2: Malformed RelayResponse len=", len); + relaySession->Done (); + return; + } + SignedData<128> s; + s.Insert ((const uint8_t *)"RelayAgreementOK", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (buf + 2, 10 + csz); // nonce, timestamp, ver, csz and Charlie's endpoint + if (s.Verify (relaySession->GetRemoteIdentity (), buf + 12 + csz)) + { + if (relaySession->m_State == eSSU2SessionStateIntroduced) // HolePunch not received yet + { + // update Charlie's endpoint + if (ExtractEndpoint (buf + 12, csz, relaySession->m_RemoteEndpoint)) + { + // update token + uint64_t token; + memcpy (&token, buf + len - 8, 8); + m_Server.UpdateOutgoingToken (relaySession->m_RemoteEndpoint, + token, i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_TIMEOUT); + // connect to Charlie, HolePunch will be ignored + relaySession->ConnectAfterIntroduction (); + } + else + LogPrint (eLogWarning, "SSU2: RelayResponse can't extract endpoint"); + } + } + else + { + LogPrint (eLogWarning, "SSU2: RelayResponse signature verification failed"); + relaySession->Done (); + } + } + else + { + LogPrint (eLogInfo, "SSU2: RelayResponse status code=", (int)buf[1], " nonce=", bufbe32toh (buf + 2)); + relaySession->Done (); + } + } + } + else + LogPrint (eLogDebug, "SSU2: RelayResponse unknown nonce ", bufbe32toh (buf + 2)); + } + + void SSU2Session::HandlePeerTest (const uint8_t * buf, size_t len) + { + // msgs 1-4 + if (len < 3) return; + uint8_t msg = buf[0]; + size_t offset = 3; // points to signed data + if (msg == 2 || msg == 4) offset += 32; // hash is presented for msg 2 and 4 only + if (len < offset + 5) return; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + uint32_t nonce = bufbe32toh (buf + offset + 1); + switch (msg) // msg + { + case 1: // Bob from Alice + { + auto session = m_Server.GetRandomPeerTestSession ((buf[12] == 6) ? i2p::data::RouterInfo::eSSU2V4 : i2p::data::RouterInfo::eSSU2V6, + GetRemoteIdentity ()->GetIdentHash ()); + if (session) // session with Charlie + { + if (m_Server.AddPeerTest (nonce, shared_from_this (), ts/1000)) + { + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + // Alice's RouterInfo + auto r = i2p::data::netdb.FindRouter (GetRemoteIdentity ()->GetIdentHash ()); + if (r && (r->IsUnreachable () || !i2p::data::netdb.PopulateRouterInfoBuffer (r))) r = nullptr; + packet->payloadSize = r ? CreateRouterInfoBlock (packet->payload, m_MaxPayloadSize - len - 32, r) : 0; + if (!packet->payloadSize && r) + session->SendFragmentedMessage (CreateDatabaseStoreMsg (r)); + if (packet->payloadSize + len + 48 > m_MaxPayloadSize) + { + // doesn't fit one message, send RouterInfo in separate message + uint32_t packetNum = session->SendData (packet->payload, packet->payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED); + packet->sendTime = ts; + session->m_SentPackets.emplace (packetNum, packet); + packet = m_Server.GetSentPacketsPool ().AcquireShared (); // new packet + } + // PeerTest to Charlie + packet->payloadSize += CreatePeerTestBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize, 2, + eSSU2PeerTestCodeAccept, GetRemoteIdentity ()->GetIdentHash (), buf + offset, len - offset); + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = session->SendData (packet->payload, packet->payloadSize, SSU2_FLAG_IMMEDIATE_ACK_REQUESTED); + packet->sendTime = ts; + session->m_SentPackets.emplace (packetNum, packet); + } + else + LogPrint (eLogInfo, "SSU2: Peer test 1 nonce ", nonce, " already exists. Ignored"); + } + else + { + // Charlie not found, send error back to Alice + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + uint8_t zeroHash[32] = {0}; + packet->payloadSize = CreatePeerTestBlock (packet->payload, m_MaxPayloadSize, 4, + eSSU2PeerTestCodeBobNoCharlieAvailable, zeroHash, buf + offset, len - offset); + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + } + break; + } + case 2: // Charlie from Bob + { + // sign with Charlie's key + if (len < offset + 9) return; + uint8_t asz = buf[offset + 9]; + size_t l = asz + 10 + i2p::context.GetIdentity ()->GetSignatureLen (); + if (len < offset + l) return; + std::vector newSignedData (l); + memcpy (newSignedData.data (), buf + offset, asz + 10); + SignedData<128> s; + s.Insert ((const uint8_t *)"PeerTestValidate", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (buf + 3, 32); // ahash + s.Insert (newSignedData.data (), asz + 10); // ver, nonce, ts, asz, Alice's endpoint + s.Sign (i2p::context.GetPrivateKeys (), newSignedData.data () + 10 + asz); + // send response (msg 3) back and msg 5 if accepted + SSU2PeerTestCode code = eSSU2PeerTestCodeAccept; + auto r = i2p::data::netdb.FindRouter (buf + 3); // find Alice + if (r) + { + size_t signatureLen = r->GetIdentity ()->GetSignatureLen (); + if (len >= offset + asz + 10 + signatureLen) + { + s.Reset (); + s.Insert ((const uint8_t *)"PeerTestValidate", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (buf + offset, asz + 10); // signed data + if (s.Verify (r->GetIdentity (), buf + offset + asz + 10)) + { + if (!m_Server.FindSession (r->GetIdentity ()->GetIdentHash ())) + { + boost::asio::ip::udp::endpoint ep; + std::shared_ptr addr; + if (ExtractEndpoint (buf + offset + 10, asz, ep) && !ep.address ().is_unspecified () && ep.port ()) + addr = r->GetSSU2Address (ep.address ().is_v4 ()); + if (addr && m_Server.IsSupported (ep.address ()) && + i2p::context.GetRouterInfo ().IsSSU2PeerTesting (ep.address ().is_v4 ())) + { + if (!m_Server.IsConnectedRecently (ep)) // no alive hole punch + { + // send msg 5 to Alice + auto session = std::make_shared (m_Server, + 0, htobe64 (((uint64_t)nonce << 32) | nonce)); + session->m_RemoteEndpoint = ep; // might be different + m_Server.AddSession (session); + session->SendPeerTest (5, newSignedData.data (), newSignedData.size (), addr); + } + else + code = eSSU2PeerTestCodeCharlieAliceIsAlreadyConnected; + } + else + code = eSSU2PeerTestCodeCharlieUnsupportedAddress; + } + else + code = eSSU2PeerTestCodeCharlieAliceIsAlreadyConnected; + } + else + code = eSSU2PeerTestCodeCharlieSignatureFailure; + } + else // maformed message + code = eSSU2PeerTestCodeCharlieReasonUnspecified; + } + else + code = eSSU2PeerTestCodeCharlieAliceIsUnknown; + // send msg 3 back to Bob + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + packet->payloadSize = CreatePeerTestBlock (packet->payload, m_MaxPayloadSize, 3, + code, nullptr, newSignedData.data (), newSignedData.size ()); + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + m_SentPackets.emplace (packetNum, packet); + break; + } + case 3: // Bob from Charlie + { + auto aliceSession = m_Server.GetPeerTest (nonce); + if (aliceSession && aliceSession->IsEstablished ()) + { + auto packet = m_Server.GetSentPacketsPool ().AcquireShared (); + // Charlie's RouterInfo + auto r = i2p::data::netdb.FindRouter (GetRemoteIdentity ()->GetIdentHash ()); + if (r && (r->IsUnreachable () || !i2p::data::netdb.PopulateRouterInfoBuffer (r))) r = nullptr; + packet->payloadSize = r ? CreateRouterInfoBlock (packet->payload, m_MaxPayloadSize - len - 32, r) : 0; + if (!packet->payloadSize && r) + aliceSession->SendFragmentedMessage (CreateDatabaseStoreMsg (r)); + if (packet->payloadSize + len + 16 > m_MaxPayloadSize) + { + // doesn't fit one message, send RouterInfo in separate message + uint32_t packetNum = aliceSession->SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + aliceSession->m_SentPackets.emplace (packetNum, packet); + packet = m_Server.GetSentPacketsPool ().AcquireShared (); + } + // PeerTest to Alice + packet->payloadSize += CreatePeerTestBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize, 4, + (SSU2PeerTestCode)buf[1], GetRemoteIdentity ()->GetIdentHash (), buf + offset, len - offset); + if (packet->payloadSize < m_MaxPayloadSize) + packet->payloadSize += CreatePaddingBlock (packet->payload + packet->payloadSize, m_MaxPayloadSize - packet->payloadSize); + uint32_t packetNum = aliceSession->SendData (packet->payload, packet->payloadSize); + packet->sendTime = ts; + aliceSession->m_SentPackets.emplace (packetNum, packet); + } + else + LogPrint (eLogDebug, "SSU2: Unknown peer test 3 nonce ", nonce); + break; + } + case 4: // Alice from Bob + { + auto session = m_Server.GetRequestedPeerTest (nonce); + if (session) + { + if (buf[1] == eSSU2PeerTestCodeAccept) + { + if (GetRouterStatus () == eRouterStatusUnknown) + SetTestingState (true); + auto r = i2p::data::netdb.FindRouter (buf + 3); // find Charlie + if (r && len >= offset + 9) + { + uint8_t asz = buf[offset + 9]; + if (len < offset + asz + 10 + r->GetIdentity ()->GetSignatureLen ()) + { + LogPrint (eLogWarning, "Malformed PeerTest 4 len=", len); + session->Done (); + return; + } + SignedData<128> s; + s.Insert ((const uint8_t *)"PeerTestValidate", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (i2p::context.GetIdentity ()->GetIdentHash (), 32); // ahash + s.Insert (buf + offset, asz + 10); // ver, nonce, ts, asz, Alice's endpoint + if (s.Verify (r->GetIdentity (), buf + offset + asz + 10)) + { + session->SetRemoteIdentity (r->GetIdentity ()); + auto addr = r->GetSSU2Address (m_Address->IsV4 ()); + if (addr && addr->IsPeerTesting ()) + { + if (session->GetMsgNumReceived () >= 5) + { + // msg 5 already received and we know remote endpoint + if (session->GetMsgNumReceived () == 5) + { + if (!session->IsConnectedRecently ()) + SetRouterStatus (eRouterStatusOK); + // send msg 6 immeditely + session->SendPeerTest (6, buf + offset, len - offset, addr); + } + else + LogPrint (eLogWarning, "SSU2: PeerTest 4 received, but msg ", session->GetMsgNumReceived (), " already received"); + } + else + { + session->m_Address = addr; + if (GetTestingState ()) + { + // schedule msg 6 with delay + if (!addr->host.is_unspecified () && addr->port) + { + session->SetRemoteEndpoint (boost::asio::ip::udp::endpoint (addr->host, addr->port)); + session->SendPeerTest (6, buf + offset, len - offset, addr, true); + } + SetTestingState (false); + if (GetRouterStatus () != eRouterStatusFirewalled && addr->IsPeerTesting ()) + { + SetRouterStatus (eRouterStatusFirewalled); + session->SetStatusChanged (); + if (m_Address->IsV4 ()) + m_Server.RescheduleIntroducersUpdateTimer (); + else + m_Server.RescheduleIntroducersUpdateTimerV6 (); + } + } + } + LogPrint (eLogDebug, "SSU2: Peer test 4 received from ", i2p::data::GetIdentHashAbbreviation (GetRemoteIdentity ()->GetIdentHash ()), + " with information about ", i2p::data::GetIdentHashAbbreviation (i2p::data::IdentHash (buf + 3))); + } + else + { + LogPrint (eLogWarning, "SSU2: Peer test 4 address not found or not supported"); + session->Done (); + } + } + else + { + LogPrint (eLogWarning, "SSU2: Peer test 4 signature verification failed"); + session->Done (); + } + } + else + { + LogPrint (eLogWarning, "SSU2: Peer test 4 router not found"); + session->Done (); + } + } + else + { + LogPrint (eLogInfo, "SSU2: Peer test 4 error code ", (int)buf[1], " from ", + i2p::data::GetIdentHashAbbreviation (buf[1] < 64 ? GetRemoteIdentity ()->GetIdentHash () : i2p::data::IdentHash (buf + 3))); + if (GetTestingState () && GetRouterStatus () != eRouterStatusFirewalled) + SetRouterStatus (eRouterStatusUnknown); + session->Done (); + } + } + else + LogPrint (eLogDebug, "SSU2: Unknown peer test 4 nonce ", nonce); + break; + } + default: + LogPrint (eLogWarning, "SSU2: PeerTest unexpected msg num ", buf[0]); + } + } + + void SSU2Session::HandleI2NPMsg (std::shared_ptr&& msg) + { + if (!msg) return; + uint32_t msgID = msg->GetMsgID (); + if (!msg->IsExpired ()) + { + // m_LastActivityTimestamp is updated in ProcessData before + if (m_ReceivedI2NPMsgIDs.emplace (msgID, (uint32_t)GetLastActivityTimestamp ()).second) + m_Handler.PutNextMessage (std::move (msg)); + else + LogPrint (eLogDebug, "SSU2: Message ", msgID, " already received"); + } + else + LogPrint (eLogDebug, "SSU2: Message ", msgID, " expired"); + } + + bool SSU2Session::ExtractEndpoint (const uint8_t * buf, size_t size, boost::asio::ip::udp::endpoint& ep) + { + if (size < 2) return false; + int port = bufbe16toh (buf); + if (size == 6) + { + boost::asio::ip::address_v4::bytes_type bytes; + memcpy (bytes.data (), buf + 2, 4); + ep = boost::asio::ip::udp::endpoint (boost::asio::ip::address_v4 (bytes), port); + } + else if (size == 18) + { + boost::asio::ip::address_v6::bytes_type bytes; + memcpy (bytes.data (), buf + 2, 16); + ep = boost::asio::ip::udp::endpoint (boost::asio::ip::address_v6 (bytes), port); + } + else + { + LogPrint (eLogWarning, "SSU2: Address size ", int(size), " is not supported"); + return false; + } + return true; + } + + size_t SSU2Session::CreateEndpoint (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& ep) + { + if (len < 6) return 0; + htobe16buf (buf, ep.port ()); + size_t size = 0; + if (ep.address ().is_v4 ()) + { + memcpy (buf + 2, ep.address ().to_v4 ().to_bytes ().data (), 4); + size = 6; + } + else if (ep.address ().is_v6 ()) + { + if (len < 18) return 0; + memcpy (buf + 2, ep.address ().to_v6 ().to_bytes ().data (), 16); + size = 18; + } + else + { + LogPrint (eLogWarning, "SSU2: Wrong address type ", ep.address ().to_string ()); + return 0; + } + return size; + } + + std::shared_ptr SSU2Session::FindLocalAddress () const + { + if (m_Address) + return i2p::context.GetRouterInfo ().GetSSU2Address (m_Address->IsV4 ()); + else if (!m_RemoteEndpoint.address ().is_unspecified ()) + return i2p::context.GetRouterInfo ().GetSSU2Address (m_RemoteEndpoint.address ().is_v4 ()); + return nullptr; + } + + void SSU2Session::AdjustMaxPayloadSize (size_t maxMtu) + { + auto addr = FindLocalAddress (); + if (addr && addr->ssu) + { + int mtu = addr->ssu->mtu; + if (!mtu && addr->IsV4 ()) mtu = SSU2_MAX_PACKET_SIZE; + if (mtu > (int)maxMtu) mtu = maxMtu; + if (m_Address && m_Address->ssu && (!mtu || m_Address->ssu->mtu < mtu)) + mtu = m_Address->ssu->mtu; + if (mtu) + { + if (mtu > (int)SSU2_MAX_PACKET_SIZE) mtu = SSU2_MAX_PACKET_SIZE; + if (mtu < (int)SSU2_MIN_PACKET_SIZE) mtu = SSU2_MIN_PACKET_SIZE; + m_MaxPayloadSize = mtu - (addr->IsV6 () ? IPV6_HEADER_SIZE: IPV4_HEADER_SIZE) - UDP_HEADER_SIZE - 32; + LogPrint (eLogDebug, "SSU2: Session MTU=", mtu, ", max payload size=", m_MaxPayloadSize); + } + } + } + + RouterStatus SSU2Session::GetRouterStatus () const + { + if (m_Address) + { + if (m_Address->IsV4 ()) + return i2p::context.GetStatus (); + if (m_Address->IsV6 ()) + return i2p::context.GetStatusV6 (); + } + return eRouterStatusUnknown; + } + + void SSU2Session::SetRouterStatus (RouterStatus status) const + { + if (m_Address) + { + if (m_Address->IsV4 ()) + i2p::context.SetStatus (status); + else if (m_Address->IsV6 ()) + i2p::context.SetStatusV6 (status); + } + } + + bool SSU2Session::GetTestingState () const + { + if (m_Address) + { + if (m_Address->IsV4 ()) + return i2p::context.GetTesting (); + if (m_Address->IsV6 ()) + return i2p::context.GetTestingV6 (); + } + return false; + } + + void SSU2Session::SetTestingState (bool testing) const + { + if (m_Address) + { + if (m_Address->IsV4 ()) + i2p::context.SetTesting (testing); + else if (m_Address->IsV6 ()) + i2p::context.SetTestingV6 (testing); + } + if (!testing) + m_Server.AdjustTimeOffset (0, nullptr); // reset time offset when testing is over + } + + size_t SSU2Session::CreateAddressBlock (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& ep) + { + if (len < 9) return 0; + buf[0] = eSSU2BlkAddress; + size_t size = CreateEndpoint (buf + 3, len - 3, ep); + if (!size) return 0; + htobe16buf (buf + 1, size); + return size + 3; + } + + size_t SSU2Session::CreateRouterInfoBlock (uint8_t * buf, size_t len, std::shared_ptr r) + { + if (!r || len < 5) return 0; + return CreateRouterInfoBlock (buf, len, r->GetSharedBuffer ()); + } + + size_t SSU2Session::CreateRouterInfoBlock (uint8_t * buf, size_t len, std::shared_ptr riBuffer) + { + if (!riBuffer || len < 5) return 0; + buf[0] = eSSU2BlkRouterInfo; + size_t size = riBuffer->GetBufferLen (); + if (size + 5 < len) + { + memcpy (buf + 5, riBuffer->data (), size); + buf[3] = 0; // flag + } + else + { + i2p::data::GzipDeflator deflator; + deflator.SetCompressionLevel (9); + size = deflator.Deflate (riBuffer->data (), riBuffer->GetBufferLen (), buf + 5, len - 5); + if (!size) return 0; // doesn't fit + buf[3] = SSU2_ROUTER_INFO_FLAG_GZIP; // flag + } + htobe16buf (buf + 1, size + 2); // size + buf[4] = 1; // frag + return size + 5; + } + + + size_t SSU2Session::CreateAckBlock (uint8_t * buf, size_t len) + { + if (len < 8) return 0; + buf[0] = eSSU2BlkAck; + uint32_t ackThrough = m_OutOfSequencePackets.empty () ? m_ReceivePacketNum : *m_OutOfSequencePackets.rbegin (); + htobe32buf (buf + 3, ackThrough); // Ack Through + uint16_t acnt = 0; + if (ackThrough) + { + if (m_OutOfSequencePackets.empty ()) + { + acnt = std::min ((int)ackThrough, SSU2_MAX_NUM_ACNT); // no gaps + m_NumRanges = 0; + } + else + { + auto it = m_OutOfSequencePackets.rbegin (); it++; // prev packet num + while (it != m_OutOfSequencePackets.rend () && *it == ackThrough - acnt - 1) + { + acnt++; + if (acnt >= SSU2_MAX_NUM_ACK_PACKETS) + break; + else + it++; + } + // ranges + if (!m_NumRanges) + { + int maxNumRanges = (len - 8) >> 1; + if (maxNumRanges > SSU2_MAX_NUM_ACK_RANGES) maxNumRanges = SSU2_MAX_NUM_ACK_RANGES; + int numRanges = 0; + uint32_t lastNum = ackThrough - acnt; + if (acnt > SSU2_MAX_NUM_ACNT) + { + auto d = std::div (acnt - SSU2_MAX_NUM_ACNT, SSU2_MAX_NUM_ACNT); + acnt = SSU2_MAX_NUM_ACNT; + if (d.quot > maxNumRanges) + { + d.quot = maxNumRanges; + d.rem = 0; + } + // Acks only ranges for acnt + for (int i = 0; i < d.quot; i++) + { + m_Ranges[numRanges*2] = 0; m_Ranges[numRanges*2 + 1] = SSU2_MAX_NUM_ACNT; // NACKs 0, Acks 255 + numRanges++; + } + if (d.rem > 0) + { + m_Ranges[numRanges*2] = 0; m_Ranges[numRanges*2 + 1] = d.rem; + numRanges++; + } + } + int numPackets = acnt + numRanges*SSU2_MAX_NUM_ACNT; + while (it != m_OutOfSequencePackets.rend () && + numRanges < maxNumRanges && numPackets < SSU2_MAX_NUM_ACK_PACKETS) + { + if (lastNum - (*it) > SSU2_MAX_NUM_ACNT) + { + // NACKs only ranges + if (lastNum > (*it) + SSU2_MAX_NUM_ACNT*(maxNumRanges - numRanges)) break; // too many NACKs + while (lastNum - (*it) > SSU2_MAX_NUM_ACNT) + { + m_Ranges[numRanges*2] = SSU2_MAX_NUM_ACNT; m_Ranges[numRanges*2 + 1] = 0; // NACKs 255, Acks 0 + lastNum -= SSU2_MAX_NUM_ACNT; + numRanges++; + numPackets += SSU2_MAX_NUM_ACNT; + } + } + // NACKs and Acks ranges + m_Ranges[numRanges*2] = lastNum - (*it) - 1; // NACKs + numPackets += m_Ranges[numRanges*2]; + lastNum = *it; it++; + int numAcks = 1; + while (it != m_OutOfSequencePackets.rend () && lastNum > 0 && *it == lastNum - 1) + { + numAcks++; lastNum--; + it++; + } + while (numAcks > SSU2_MAX_NUM_ACNT) + { + // Acks only ranges + m_Ranges[numRanges*2 + 1] = SSU2_MAX_NUM_ACNT; // Acks 255 + numAcks -= SSU2_MAX_NUM_ACNT; + numRanges++; + numPackets += SSU2_MAX_NUM_ACNT; + m_Ranges[numRanges*2] = 0; // NACKs 0 + if (numRanges >= maxNumRanges || numPackets >= SSU2_MAX_NUM_ACK_PACKETS) break; + } + if (numAcks > SSU2_MAX_NUM_ACNT) numAcks = SSU2_MAX_NUM_ACNT; + m_Ranges[numRanges*2 + 1] = (uint8_t)numAcks; // Acks + numPackets += numAcks; + numRanges++; + } + if (it == m_OutOfSequencePackets.rend () && + numRanges < maxNumRanges && numPackets < SSU2_MAX_NUM_ACK_PACKETS) + { + // add range between out-of-sequence and received + int nacks = *m_OutOfSequencePackets.begin () - m_ReceivePacketNum - 1; + if (nacks > 0) + { + if (nacks > SSU2_MAX_NUM_ACNT) nacks = SSU2_MAX_NUM_ACNT; + m_Ranges[numRanges*2] = nacks; + m_Ranges[numRanges*2 + 1] = std::min ((int)m_ReceivePacketNum + 1, SSU2_MAX_NUM_ACNT); + numRanges++; + } + } + m_NumRanges = numRanges; + } + if (m_NumRanges) + memcpy (buf + 8, m_Ranges, m_NumRanges*2); + } + } + buf[7] = (uint8_t)acnt; // acnt + htobe16buf (buf + 1, 5 + m_NumRanges*2); + return 8 + m_NumRanges*2; + } + + size_t SSU2Session::CreatePaddingBlock (uint8_t * buf, size_t len, size_t minSize) + { + if (len < 3 || len < minSize) return 0; + size_t paddingSize = m_Server.GetRng ()() & 0x1F; // 0 - 31 + if (paddingSize + 3 > len) paddingSize = len - 3; + else if (paddingSize + 3 < minSize) paddingSize = minSize - 3; + buf[0] = eSSU2BlkPadding; + htobe16buf (buf + 1, paddingSize); + memset (buf + 3, 0, paddingSize); + return paddingSize + 3; + } + + size_t SSU2Session::CreateI2NPBlock (uint8_t * buf, size_t len, std::shared_ptr&& msg) + { + msg->ToNTCP2 (); + auto msgBuf = msg->GetNTCP2Header (); + auto msgLen = msg->GetNTCP2Length (); + if (msgLen + 3 > len) msgLen = len - 3; + buf[0] = eSSU2BlkI2NPMessage; + htobe16buf (buf + 1, msgLen); // size + memcpy (buf + 3, msgBuf, msgLen); + return msgLen + 3; + } + + size_t SSU2Session::CreateFirstFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr msg) + { + if (len < 12) return 0; + msg->ToNTCP2 (); + auto msgBuf = msg->GetNTCP2Header (); + auto msgLen = msg->GetNTCP2Length (); + if (msgLen + 3 <= len) return 0; + msgLen = len - 3; + buf[0] = eSSU2BlkFirstFragment; + htobe16buf (buf + 1, msgLen); // size + memcpy (buf + 3, msgBuf, msgLen); + msg->offset = (msgBuf - msg->buf) + msgLen; + return msgLen + 3; + } + + size_t SSU2Session::CreateFollowOnFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr msg, uint8_t& fragmentNum, uint32_t msgID) + { + if (len < 8) return 0; + bool isLast = true; + auto msgLen = msg->len - msg->offset; + if (msgLen + 8 > len) + { + msgLen = len - 8; + isLast = false; + } + buf[0] = eSSU2BlkFollowOnFragment; + htobe16buf (buf + 1, msgLen + 5); // size + fragmentNum++; + buf[3] = fragmentNum << 1; + if (isLast) buf[3] |= 0x01; + memcpy (buf + 4, &msgID, 4); + memcpy (buf + 8, msg->buf + msg->offset, msgLen); + msg->offset += msgLen; + return msgLen + 8; + } + + size_t SSU2Session::CreateRelayIntroBlock (uint8_t * buf, size_t len, const uint8_t * introData, size_t introDataLen) + { + buf[0] = eSSU2BlkRelayIntro; + size_t payloadSize = 1/* flag */ + 32/* Alice router hash */ + introDataLen; + if (payloadSize + 3 > len) return 0; + htobe16buf (buf + 1, payloadSize); // size + buf[3] = 0; // flag + memcpy (buf + 4, GetRemoteIdentity ()->GetIdentHash (), 32); // Alice router hash + memcpy (buf + 36, introData, introDataLen); + return payloadSize + 3; + } + + size_t SSU2Session::CreateRelayResponseBlock (uint8_t * buf, size_t len, + SSU2RelayResponseCode code, uint32_t nonce, uint64_t token, bool v4) + { + buf[0] = eSSU2BlkRelayResponse; + buf[3] = 0; // flag + buf[4] = code; // code + htobe32buf (buf + 5, nonce); // nonce + htobe32buf (buf + 9, i2p::util::GetSecondsSinceEpoch ()); // timestamp + buf[13] = 2; // ver + size_t csz = 0; + if (code == eSSU2RelayResponseCodeAccept) + { + auto addr = i2p::context.GetRouterInfo ().GetSSU2Address (v4); + if (!addr) + { + LogPrint (eLogError, "SSU2: Can't find local address for RelayResponse"); + return 0; + } + csz = CreateEndpoint (buf + 15, len - 15, boost::asio::ip::udp::endpoint (addr->host, addr->port)); + if (!csz) + { + LogPrint (eLogError, "SSU2: Can't create local endpoint for RelayResponse"); + return 0; + } + } + buf[14] = csz; // csz + // signature + size_t signatureLen = i2p::context.GetIdentity ()->GetSignatureLen (); + if (15 + csz + signatureLen > len) + { + LogPrint (eLogError, "SSU2: Buffer for RelayResponse signature is too small ", len); + return 0; + } + SignedData<128> s; + s.Insert ((const uint8_t *)"RelayAgreementOK", 16); // prologue + if (code == eSSU2RelayResponseCodeAccept || code >= 64) // Charlie + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + else // Bob's reject + s.Insert (i2p::context.GetIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (buf + 5, 10 + csz); // nonce, timestamp, ver, csz and Charlie's endpoint + s.Sign (i2p::context.GetPrivateKeys (), buf + 15 + csz); + size_t payloadSize = 12 + csz + signatureLen; + if (!code) + { + if (payloadSize + 11 > len) + { + LogPrint (eLogError, "SSU2: Buffer for RelayResponse token is too small ", len); + return 0; + } + memcpy (buf + 3 + payloadSize, &token, 8); + payloadSize += 8; + } + htobe16buf (buf + 1, payloadSize); // size + return payloadSize + 3; + } + + size_t SSU2Session::CreatePeerTestBlock (uint8_t * buf, size_t len, uint8_t msg, SSU2PeerTestCode code, + const uint8_t * routerHash, const uint8_t * signedData, size_t signedDataLen) + { + buf[0] = eSSU2BlkPeerTest; + size_t payloadSize = 3/* msg, code, flag */ + signedDataLen; + if (routerHash) payloadSize += 32; // router hash + if (payloadSize + 3 > len) return 0; + htobe16buf (buf + 1, payloadSize); // size + buf[3] = msg; // msg + buf[4] = (uint8_t)code; // code + buf[5] = 0; //flag + size_t offset = 6; + if (routerHash) + { + memcpy (buf + offset, routerHash, 32); // router hash + offset += 32; + } + memcpy (buf + offset, signedData, signedDataLen); + return payloadSize + 3; + } + + size_t SSU2Session::CreatePeerTestBlock (uint8_t * buf, size_t len, uint32_t nonce) + { + auto localAddress = FindLocalAddress (); + if (!localAddress || !localAddress->port || localAddress->host.is_unspecified () || + localAddress->host.is_v4 () != m_RemoteEndpoint.address ().is_v4 ()) + { + LogPrint (eLogWarning, "SSU2: Can't find local address for peer test"); + return 0; + } + // signed data + auto ts = i2p::util::GetSecondsSinceEpoch (); + uint8_t signedData[96]; + signedData[0] = 2; // ver + htobe32buf (signedData + 1, nonce); + htobe32buf (signedData + 5, ts); + size_t asz = CreateEndpoint (signedData + 10, 86, boost::asio::ip::udp::endpoint (localAddress->host, localAddress->port)); + signedData[9] = asz; + // signature + SignedData<128> s; + s.Insert ((const uint8_t *)"PeerTestValidate", 16); // prologue + s.Insert (GetRemoteIdentity ()->GetIdentHash (), 32); // bhash + s.Insert (signedData, 10 + asz); // ver, nonce, ts, asz, Alice's endpoint + s.Sign (i2p::context.GetPrivateKeys (), signedData + 10 + asz); + return CreatePeerTestBlock (buf, len, 1, eSSU2PeerTestCodeAccept, nullptr, + signedData, 10 + asz + i2p::context.GetIdentity ()->GetSignatureLen ()); + } + + size_t SSU2Session::CreateTerminationBlock (uint8_t * buf, size_t len) + { + buf[0] = eSSU2BlkTermination; + htobe16buf (buf + 1, 9); + htobe64buf (buf + 3, m_ReceivePacketNum); + buf[11] = (uint8_t)m_TerminationReason; + return 12; + } + + std::shared_ptr SSU2Session::ExtractRouterInfo (const uint8_t * buf, size_t size) + { + if (size < 2) return nullptr; + // TODO: handle frag + std::shared_ptr ri; + if (buf[0] & SSU2_ROUTER_INFO_FLAG_GZIP) + { + i2p::data::GzipInflator inflator; + uint8_t uncompressed[i2p::data::MAX_RI_BUFFER_SIZE]; + size_t uncompressedSize = inflator.Inflate (buf + 2, size - 2, uncompressed, i2p::data::MAX_RI_BUFFER_SIZE); + if (uncompressedSize && uncompressedSize <= i2p::data::MAX_RI_BUFFER_SIZE) + ri = std::make_shared(uncompressed, uncompressedSize); + else + LogPrint (eLogInfo, "SSU2: RouterInfo decompression failed ", uncompressedSize); + } + else if (size <= i2p::data::MAX_RI_BUFFER_SIZE + 2) + ri = std::make_shared(buf + 2, size - 2); + else + LogPrint (eLogInfo, "SSU2: RouterInfo is too long ", size); + return ri; + } + + bool SSU2Session::UpdateReceivePacketNum (uint32_t packetNum) + { + if (packetNum <= m_ReceivePacketNum) return false; // duplicate + if (packetNum == m_ReceivePacketNum + 1) + { + if (!m_OutOfSequencePackets.empty ()) + { + auto it = m_OutOfSequencePackets.begin (); + if (*it == packetNum + 1) + { + // first out of sequence packet is in sequence now + packetNum++; it++; + while (it != m_OutOfSequencePackets.end ()) + { + if (*it == packetNum + 1) + { + packetNum++; + it++; + } + else // next out of sequence + break; + } + m_OutOfSequencePackets.erase (m_OutOfSequencePackets.begin (), it); + } + m_NumRanges = 0; // recalculate ranges when create next Ack + } + m_ReceivePacketNum = packetNum; + } + else + { + if (m_NumRanges && (m_OutOfSequencePackets.empty () || + packetNum != (*m_OutOfSequencePackets.rbegin ()) + 1)) + m_NumRanges = 0; // reset ranges if received packet is not next + m_OutOfSequencePackets.insert (packetNum); + } + return true; + } + + void SSU2Session::SendQuickAck () + { + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = 0; + if (m_SendPacketNum > m_LastDatetimeSentPacketNum + SSU2_SEND_DATETIME_NUM_PACKETS) + { + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + payloadSize += 7; + m_LastDatetimeSentPacketNum = m_SendPacketNum; + } + payloadSize += CreateAckBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + SendData (payload, payloadSize); + } + + void SSU2Session::SendTermination () + { + uint8_t payload[32]; + size_t payloadSize = CreateTerminationBlock (payload, 32); + payloadSize += CreatePaddingBlock (payload + payloadSize, 32 - payloadSize); + SendData (payload, payloadSize); + } + + void SSU2Session::SendPathResponse (const uint8_t * data, size_t len) + { + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = 0; + // datetime block + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + payloadSize += 7; + // address block + payloadSize += CreateAddressBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize, m_RemoteEndpoint); + // path response + if (payloadSize + len > m_MaxPayloadSize) + { + LogPrint (eLogWarning, "SSU2: Incorrect data size for path response ", len); + return; + } + payload[payloadSize] = eSSU2BlkPathResponse; + htobe16buf (payload + payloadSize + 1, len); + memcpy (payload + payloadSize + 3, data, len); + payloadSize += len + 3; + // ack block + if (payloadSize < m_MaxPayloadSize) + payloadSize += CreateAckBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + // padding + if (payloadSize < m_MaxPayloadSize) + payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + SendData (payload, payloadSize); + } + + void SSU2Session::SendPathChallenge (const boost::asio::ip::udp::endpoint& to) + { + AdjustMaxPayloadSize (SSU2_MIN_PACKET_SIZE); // reduce to minimum + m_WindowSize = SSU2_MIN_WINDOW_SIZE; // reduce window to minimum + + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = 0; + // datetime block + payload[0] = eSSU2BlkDateTime; + htobe16buf (payload + 1, 4); + htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000); + payloadSize += 7; + // address block with new address + payloadSize += CreateAddressBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize, to); + // path challenge block + payload[payloadSize] = eSSU2BlkPathChallenge; + uint64_t challenge; + RAND_bytes ((uint8_t *)&challenge, 8); + htobe16buf (payload + payloadSize + 1, 8); // always 8 bytes + htobuf64 (payload + payloadSize + 3, challenge); + payloadSize += 11; + m_PathChallenge = std::make_unique >(challenge, to); + // ack block + if (payloadSize < m_MaxPayloadSize) + payloadSize += CreateAckBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + // padding block + if (payloadSize < m_MaxPayloadSize) + payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize); + // send to new endpoint + auto existing = m_RemoteEndpoint; + m_RemoteEndpoint = to; // send path challenge to new endpoint + SendData (payload, payloadSize); + m_RemoteEndpoint = existing; // restore endpoint back until path response received + } + + void SSU2Session::CleanUp (uint64_t ts) + { + for (auto it = m_IncompleteMessages.begin (); it != m_IncompleteMessages.end ();) + { + if (ts > it->second->lastFragmentInsertTime + SSU2_INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT) + { + LogPrint (eLogWarning, "SSU2: message ", it->first, " was not completed in ", SSU2_INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT, " seconds, deleted"); + it = m_IncompleteMessages.erase (it); + } + else + ++it; + } + if (m_ReceivedI2NPMsgIDs.size () > SSU2_MAX_NUM_RECEIVED_I2NP_MSGIDS || ts > GetLastActivityTimestamp () + SSU2_DECAY_INTERVAL) + // decay + m_ReceivedI2NPMsgIDs.clear (); + else + { + // delete old received msgIDs + for (auto it = m_ReceivedI2NPMsgIDs.begin (); it != m_ReceivedI2NPMsgIDs.end ();) + { + if (ts > it->second + SSU2_RECEIVED_I2NP_MSGIDS_CLEANUP_TIMEOUT) + it = m_ReceivedI2NPMsgIDs.erase (it); + else + ++it; + } + } + if (!m_OutOfSequencePackets.empty ()) + { + int ranges = 0; + while (ranges < 8 && !m_OutOfSequencePackets.empty () && + (m_OutOfSequencePackets.size () > 2*SSU2_MAX_NUM_ACK_RANGES || + *m_OutOfSequencePackets.rbegin () > m_ReceivePacketNum + SSU2_MAX_NUM_ACK_PACKETS)) + { + uint32_t packet = *m_OutOfSequencePackets.begin (); + if (packet > m_ReceivePacketNum + 1) + { + // like we've just received all packets before first + packet--; + m_ReceivePacketNum = packet - 1; + UpdateReceivePacketNum (packet); + ranges++; + } + else + { + LogPrint (eLogError, "SSU2: Out of sequence packet ", packet, " is less than last received ", m_ReceivePacketNum); + break; + } + } + if (m_OutOfSequencePackets.size () > 255*4) + { + // seems we have a serious network issue + m_ReceivePacketNum = *m_OutOfSequencePackets.rbegin (); + m_OutOfSequencePackets.clear (); + } + } + + for (auto it = m_RelaySessions.begin (); it != m_RelaySessions.end ();) + { + if (ts > it->second.second + SSU2_RELAY_NONCE_EXPIRATION_TIMEOUT) + { + LogPrint (eLogInfo, "SSU2: Relay nonce ", it->first, " was not responded in ", SSU2_RELAY_NONCE_EXPIRATION_TIMEOUT, " seconds, deleted"); + it = m_RelaySessions.erase (it); + } + else + ++it; + } + if (m_PathChallenge) + RequestTermination (eSSU2TerminationReasonNormalClose); + } + + void SSU2Session::FlushData () + { + bool sent = SendQueue (); // if we have something to send + if (sent) + SetSendQueueSize (m_SendQueue.size ()); + if (m_IsDataReceived) + { + if (!sent) SendQuickAck (); + m_Handler.Flush (); + m_IsDataReceived = false; + } + else if (!sent && !m_SentPackets.empty ()) // if only acks received, nothing sent and we still have something to resend + Resend (i2p::util::GetMillisecondsSinceEpoch ()); // than right time to resend + } + + i2p::data::RouterInfo::SupportedTransports SSU2Session::GetTransportType () const + { + return m_RemoteEndpoint.address ().is_v4 () ? i2p::data::RouterInfo::eSSU2V4 : i2p::data::RouterInfo::eSSU2V6; + } +} +} diff --git a/libi2pd/SSU2Session.h b/libi2pd/SSU2Session.h new file mode 100644 index 00000000..ee26255f --- /dev/null +++ b/libi2pd/SSU2Session.h @@ -0,0 +1,419 @@ +/* +* Copyright (c) 2022-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef SSU2_SESSION_H__ +#define SSU2_SESSION_H__ + +#include +#include +#include +#include +#include +#include +#include "version.h" +#include "Crypto.h" +#include "RouterInfo.h" +#include "RouterContext.h" +#include "TransportSession.h" + +namespace i2p +{ +namespace transport +{ + const int SSU2_CONNECT_TIMEOUT = 5; // 5 seconds + const int SSU2_TERMINATION_TIMEOUT = 165; // in seconds + const int SSU2_CLOCK_SKEW = 60; // in seconds + const int SSU2_CLOCK_THRESHOLD = 15; // in seconds, if more we should adjust + const int SSU2_TOKEN_EXPIRATION_TIMEOUT = 9; // for Retry message, in seconds + const int SSU2_NEXT_TOKEN_EXPIRATION_TIMEOUT = 52*60; // for next token block, in seconds + const int SSU2_TOKEN_EXPIRATION_THRESHOLD = 2; // in seconds + const int SSU2_RELAY_NONCE_EXPIRATION_TIMEOUT = 10; // in seconds + const int SSU2_PEER_TEST_EXPIRATION_TIMEOUT = 60; // 60 seconds + const size_t SSU2_MAX_PACKET_SIZE = 1500; + const size_t SSU2_MIN_PACKET_SIZE = 1280; + const int SSU2_HANDSHAKE_RESEND_INTERVAL = 1000; // in milliseconds + const int SSU2_MAX_NUM_RESENDS = 5; + const int SSU2_RESEND_ATTEMPT_MIN_INTERVAL = 3; // in milliseconds + const int SSU2_INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT = 30; // in seconds + const int SSU2_MAX_NUM_RECEIVED_I2NP_MSGIDS = 5000; // how many msgID we store for duplicates check + const int SSU2_RECEIVED_I2NP_MSGIDS_CLEANUP_TIMEOUT = 10; // in seconds + const int SSU2_DECAY_INTERVAL = 20; // in seconds + const size_t SSU2_MIN_WINDOW_SIZE = 16; // in packets + const size_t SSU2_MAX_WINDOW_SIZE = 256; // in packets + const size_t SSU2_MIN_RTO = 100; // in milliseconds + const size_t SSU2_INITIAL_RTO = 540; // in milliseconds + const size_t SSU2_MAX_RTO = 2500; // in milliseconds + const double SSU2_UNKNOWN_RTT = -1; + const double SSU2_RTT_EWMA_ALPHA = 0.125; + const float SSU2_kAPPA = 1.8; + const int SSU2_MAX_NUM_ACNT = 255; // acnt, acks or nacks + const int SSU2_MAX_NUM_ACK_PACKETS = 511; // ackthrough + acnt + 1 range + const int SSU2_MAX_NUM_ACK_RANGES = 32; // to send + const uint8_t SSU2_MAX_NUM_FRAGMENTS = 64; + const int SSU2_SEND_DATETIME_NUM_PACKETS = 256; + const int SSU2_MIN_RELAY_RESPONSE_RESEND_VERSION = MAKE_VERSION_NUMBER(0, 9, 64); // 0.9.64 + + // flags + const uint8_t SSU2_FLAG_IMMEDIATE_ACK_REQUESTED = 0x01; + + enum SSU2MessageType + { + eSSU2SessionRequest = 0, + eSSU2SessionCreated = 1, + eSSU2SessionConfirmed = 2, + eSSU2Data = 6, + eSSU2PeerTest = 7, + eSSU2Retry = 9, + eSSU2TokenRequest = 10, + eSSU2HolePunch = 11 + }; + + enum SSU2BlockType + { + eSSU2BlkDateTime = 0, + eSSU2BlkOptions, // 1 + eSSU2BlkRouterInfo, // 2 + eSSU2BlkI2NPMessage, // 3 + eSSU2BlkFirstFragment, // 4 + eSSU2BlkFollowOnFragment, // 5 + eSSU2BlkTermination, // 6 + eSSU2BlkRelayRequest, // 7 + eSSU2BlkRelayResponse, // 8 + eSSU2BlkRelayIntro, // 9 + eSSU2BlkPeerTest, // 10 + eSSU2BlkNextNonce, // 11 + eSSU2BlkAck, // 12 + eSSU2BlkAddress, // 13 + eSSU2BlkIntroKey, // 14 + eSSU2BlkRelayTagRequest, // 15 + eSSU2BlkRelayTag, // 16 + eSSU2BlkNewToken, // 17 + eSSU2BlkPathChallenge, // 18 + eSSU2BlkPathResponse, // 19 + eSSU2BlkFirstPacketNumber, // 20 + eSSU2BlkPadding = 254 + }; + + enum SSU2SessionState + { + eSSU2SessionStateUnknown, + eSSU2SessionStateTokenReceived, + eSSU2SessionStateSessionRequestSent, + eSSU2SessionStateSessionRequestReceived, + eSSU2SessionStateSessionCreatedSent, + eSSU2SessionStateSessionCreatedReceived, + eSSU2SessionStateSessionConfirmedSent, + eSSU2SessionStateEstablished, + eSSU2SessionStateClosing, + eSSU2SessionStateClosingConfirmed, + eSSU2SessionStateTerminated, + eSSU2SessionStateFailed, + eSSU2SessionStateIntroduced, + eSSU2SessionStateHolePunch, + eSSU2SessionStatePeerTest, + eSSU2SessionStateTokenRequestReceived + }; + + enum SSU2PeerTestCode + { + eSSU2PeerTestCodeAccept = 0, + eSSU2PeerTestCodeBobReasonUnspecified = 1, + eSSU2PeerTestCodeBobNoCharlieAvailable = 2, + eSSU2PeerTestCodeBobLimitExceeded = 3, + eSSU2PeerTestCodeBobSignatureFailure = 4, + eSSU2PeerTestCodeCharlieReasonUnspecified = 64, + eSSU2PeerTestCodeCharlieUnsupportedAddress = 65, + eSSU2PeerTestCodeCharlieLimitExceeded = 66, + eSSU2PeerTestCodeCharlieSignatureFailure = 67, + eSSU2PeerTestCodeCharlieAliceIsAlreadyConnected = 68, + eSSU2PeerTestCodeCharlieAliceIsBanned = 69, + eSSU2PeerTestCodeCharlieAliceIsUnknown = 70, + eSSU2PeerTestCodeUnspecified = 128 + }; + + enum SSU2RelayResponseCode + { + eSSU2RelayResponseCodeAccept = 0, + eSSU2RelayResponseCodeBobRelayTagNotFound = 5, + eSSU2RelayResponseCodeCharlieUnsupportedAddress = 65, + eSSU2RelayResponseCodeCharlieSignatureFailure = 67, + eSSU2RelayResponseCodeCharlieAliceIsUnknown = 70 + }; + + enum SSU2TerminationReason + { + eSSU2TerminationReasonNormalClose = 0, + eSSU2TerminationReasonTerminationReceived = 1, + eSSU2TerminationReasonIdleTimeout = 2, + eSSU2TerminationReasonRouterShutdown = 3, + eSSU2TerminationReasonDataPhaseAEADFailure= 4, + eSSU2TerminationReasonIncompatibleOptions = 5, + eSSU2TerminationReasonTncompatibleSignatureType = 6, + eSSU2TerminationReasonClockSkew = 7, + eSSU2TerminationPaddingViolation = 8, + eSSU2TerminationReasonAEADFramingError = 9, + eSSU2TerminationReasonPayloadFormatError = 10, + eSSU2TerminationReasonSessionRequestError = 11, + eSSU2TerminationReasonSessionCreatedError = 12, + eSSU2TerminationReasonSessionConfirmedError = 13, + eSSU2TerminationReasonTimeout = 14, + eSSU2TerminationReasonRouterInfoSignatureVerificationFail = 15, + eSSU2TerminationReasonInvalidS = 16, + eSSU2TerminationReasonBanned = 17, + eSSU2TerminationReasonBadToken = 18, + eSSU2TerminationReasonConnectionLimits = 19, + eSSU2TerminationReasonIncompatibleVersion = 20, + eSSU2TerminationReasonWrongNetID = 21, + eSSU2TerminationReasonReplacedByNewSession = 22 + }; + + struct SSU2IncompleteMessage + { + struct Fragment + { + uint8_t buf[SSU2_MAX_PACKET_SIZE]; + size_t len; + int fragmentNum; + bool isLast; + std::shared_ptr next; + }; + + std::shared_ptr msg; + int nextFragmentNum; + uint32_t lastFragmentInsertTime; // in seconds + std::shared_ptr outOfSequenceFragments; // #1 and more + + void AttachNextFragment (const uint8_t * fragment, size_t fragmentSize); + bool ConcatOutOfSequenceFragments (); // true if message complete + void AddOutOfSequenceFragment (std::shared_ptr fragment); + }; + + struct SSU2SentPacket + { + uint8_t payload[SSU2_MAX_PACKET_SIZE]; + size_t payloadSize = 0; + uint64_t sendTime; // in milliseconds + int numResends = 0; + }; + + // RouterInfo flags + const uint8_t SSU2_ROUTER_INFO_FLAG_REQUEST_FLOOD = 0x01; + const uint8_t SSU2_ROUTER_INFO_FLAG_GZIP = 0x02; + + class SSU2Server; + class SSU2Session: public TransportSession, public std::enable_shared_from_this + { + protected: + + union Header + { + uint64_t ll[2]; + uint8_t buf[16]; + struct + { + uint64_t connID; + uint32_t packetNum; + uint8_t type; + uint8_t flags[3]; + } h; + }; + + private: + + struct HandshakePacket + { + Header header; + uint8_t headerX[48]; // part1 for SessionConfirmed + uint8_t payload[SSU2_MAX_PACKET_SIZE*2]; + size_t payloadSize = 0; + uint64_t sendTime = 0; // in milliseconds + bool isSecondFragment = false; // for SessionConfirmed + }; + + typedef std::function OnEstablished; + + public: + + SSU2Session (SSU2Server& server, std::shared_ptr in_RemoteRouter = nullptr, + std::shared_ptr addr = nullptr, bool noise = true); + virtual ~SSU2Session (); + + void SetRemoteEndpoint (const boost::asio::ip::udp::endpoint& ep) { m_RemoteEndpoint = ep; }; + const boost::asio::ip::udp::endpoint& GetRemoteEndpoint () const { return m_RemoteEndpoint; }; + i2p::data::RouterInfo::CompatibleTransports GetRemoteTransports () const { return m_RemoteTransports; }; + i2p::data::RouterInfo::CompatibleTransports GetRemotePeerTestTransports () const { return m_RemotePeerTestTransports; }; + std::shared_ptr GetAddress () const { return m_Address; }; + void SetOnEstablished (OnEstablished e) { m_OnEstablished = e; }; + OnEstablished GetOnEstablished () const { return m_OnEstablished; }; + + virtual void Connect (); + bool Introduce (std::shared_ptr session, uint32_t relayTag); + void WaitForIntroduction (); + void SendPeerTest (); // Alice, Data message + void SendKeepAlive (); + void RequestTermination (SSU2TerminationReason reason); + void CleanUp (uint64_t ts); + void FlushData (); + void Done () override; + void SendLocalRouterInfo (bool update) override; + void SendI2NPMessages (std::list >& msgs) override; + void MoveSendQueue (std::shared_ptr other); + uint32_t GetRelayTag () const override { return m_RelayTag; }; + size_t Resend (uint64_t ts); // return number of resent packets + uint64_t GetLastResendTime () const { return m_LastResendTime; }; + bool IsEstablished () const override { return m_State == eSSU2SessionStateEstablished; }; + i2p::data::RouterInfo::SupportedTransports GetTransportType () const override; + uint64_t GetConnID () const { return m_SourceConnID; }; + SSU2SessionState GetState () const { return m_State; }; + void SetState (SSU2SessionState state) { m_State = state; }; + + virtual bool ProcessFirstIncomingMessage (uint64_t connID, uint8_t * buf, size_t len); + bool ProcessSessionCreated (uint8_t * buf, size_t len); + bool ProcessSessionConfirmed (uint8_t * buf, size_t len); + bool ProcessRetry (uint8_t * buf, size_t len); + bool ProcessHolePunch (uint8_t * buf, size_t len); + virtual bool ProcessPeerTest (uint8_t * buf, size_t len); + void ProcessData (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& from); + + protected: + + SSU2Server& GetServer () { return m_Server; } + RouterStatus GetRouterStatus () const; + void SetRouterStatus (RouterStatus status) const; + size_t GetMaxPayloadSize () const { return m_MaxPayloadSize; } + void SetIsDataReceived (bool dataReceived) { m_IsDataReceived = dataReceived; }; + + uint64_t GetSourceConnID () const { return m_SourceConnID; } + void SetSourceConnID (uint64_t sourceConnID) { m_SourceConnID = sourceConnID; } + uint64_t GetDestConnID () const { return m_DestConnID; } + void SetDestConnID (uint64_t destConnID) { m_DestConnID = destConnID; } + + void SetAddress (std::shared_ptr addr) { m_Address = addr; } + void HandlePayload (const uint8_t * buf, size_t len); + + size_t CreateAddressBlock (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& ep); + size_t CreatePaddingBlock (uint8_t * buf, size_t len, size_t minSize = 0); + size_t CreatePeerTestBlock (uint8_t * buf, size_t len, uint8_t msg, SSU2PeerTestCode code, const uint8_t * routerHash, const uint8_t * signedData, size_t signedDataLen); + + bool ExtractEndpoint (const uint8_t * buf, size_t size, boost::asio::ip::udp::endpoint& ep); + + private: + + void Terminate (); + void Established (); + void ScheduleConnectTimer (); + void HandleConnectTimer (const boost::system::error_code& ecode); + void PostI2NPMessages (); + bool SendQueue (); // returns true if ack block was sent + bool SendFragmentedMessage (std::shared_ptr msg); + void ResendHandshakePacket (); + void ConnectAfterIntroduction (); + + void ProcessSessionRequest (Header& header, uint8_t * buf, size_t len); + void ProcessTokenRequest (Header& header, uint8_t * buf, size_t len); + + void SendSessionRequest (uint64_t token = 0); + void SendSessionCreated (const uint8_t * X); + void SendSessionConfirmed (const uint8_t * Y); + void KDFDataPhase (uint8_t * keydata_ab, uint8_t * keydata_ba); + void SendTokenRequest (); + void SendRetry (); + uint32_t SendData (const uint8_t * buf, size_t len, uint8_t flags = 0); // returns packet num + void SendQuickAck (); + void SendTermination (); + void SendPathResponse (const uint8_t * data, size_t len); + void SendPathChallenge (const boost::asio::ip::udp::endpoint& to); + + void HandleDateTime (const uint8_t * buf, size_t len); + void HandleRouterInfo (const uint8_t * buf, size_t len); + void HandleAck (const uint8_t * buf, size_t len); + void HandleAckRange (uint32_t firstPacketNum, uint32_t lastPacketNum, uint64_t ts); + virtual void HandleAddress (const uint8_t * buf, size_t len); + size_t CreateEndpoint (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& ep); + std::shared_ptr FindLocalAddress () const; + void AdjustMaxPayloadSize (size_t maxMtu = SSU2_MAX_PACKET_SIZE); + bool GetTestingState () const; + void SetTestingState(bool testing) const; + std::shared_ptr ExtractRouterInfo (const uint8_t * buf, size_t size); + bool UpdateReceivePacketNum (uint32_t packetNum); // for Ack, returns false if duplicate + void HandleFirstFragment (const uint8_t * buf, size_t len); + void HandleFollowOnFragment (const uint8_t * buf, size_t len); + void HandleRelayRequest (const uint8_t * buf, size_t len); + void HandleRelayIntro (const uint8_t * buf, size_t len, int attempts = 0); + void HandleRelayResponse (const uint8_t * buf, size_t len); + virtual void HandlePeerTest (const uint8_t * buf, size_t len); + void HandleI2NPMsg (std::shared_ptr&& msg); + + size_t CreateRouterInfoBlock (uint8_t * buf, size_t len, std::shared_ptr r); + size_t CreateRouterInfoBlock (uint8_t * buf, size_t len, std::shared_ptr riBuffer); + size_t CreateAckBlock (uint8_t * buf, size_t len); + size_t CreateI2NPBlock (uint8_t * buf, size_t len, std::shared_ptr&& msg); + size_t CreateFirstFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr msg); + size_t CreateFollowOnFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr msg, uint8_t& fragmentNum, uint32_t msgID); + size_t CreateRelayIntroBlock (uint8_t * buf, size_t len, const uint8_t * introData, size_t introDataLen); + size_t CreateRelayResponseBlock (uint8_t * buf, size_t len, SSU2RelayResponseCode code, uint32_t nonce, uint64_t token, bool v4); + + size_t CreatePeerTestBlock (uint8_t * buf, size_t len, uint32_t nonce); // Alice + size_t CreateTerminationBlock (uint8_t * buf, size_t len); + + private: + + SSU2Server& m_Server; + std::shared_ptr m_EphemeralKeys; + std::unique_ptr m_NoiseState; + std::unique_ptr m_SessionConfirmedFragment; // for Bob if applicable or second fragment for Alice + std::unique_ptr m_SentHandshakePacket; // SessionRequest, SessionCreated or SessionConfirmed + std::shared_ptr m_Address; + boost::asio::ip::udp::endpoint m_RemoteEndpoint; + i2p::data::RouterInfo::CompatibleTransports m_RemoteTransports, m_RemotePeerTestTransports; + int m_RemoteVersion; + uint64_t m_DestConnID, m_SourceConnID; + SSU2SessionState m_State; + uint8_t m_KeyDataSend[64], m_KeyDataReceive[64]; + uint32_t m_SendPacketNum, m_ReceivePacketNum, m_LastDatetimeSentPacketNum; + std::set m_OutOfSequencePackets; // packet nums > receive packet num + std::map > m_SentPackets; // packetNum -> packet + std::unordered_map > m_IncompleteMessages; // msgID -> I2NP + std::unordered_map, uint64_t > > m_RelaySessions; // nonce->(Alice, timestamp) for Bob or nonce->(Charlie, timestamp) for Alice + std::list > m_SendQueue; + i2p::I2NPMessagesHandler m_Handler; + std::list > m_IntermediateQueue; // from transports + mutable std::mutex m_IntermediateQueueMutex; + bool m_IsDataReceived; + double m_RTT; + int m_MsgLocalExpirationTimeout; + int m_MsgLocalSemiExpirationTimeout; + size_t m_WindowSize, m_RTO; + uint32_t m_RelayTag; // between Bob and Charlie + OnEstablished m_OnEstablished; // callback from Established + boost::asio::deadline_timer m_ConnectTimer; + SSU2TerminationReason m_TerminationReason; + size_t m_MaxPayloadSize; + std::unique_ptr > m_PathChallenge; + std::unordered_map m_ReceivedI2NPMsgIDs; // msgID -> timestamp in seconds + uint64_t m_LastResendTime, m_LastResendAttemptTime; // in milliseconds + int m_NumRanges; + uint8_t m_Ranges[SSU2_MAX_NUM_ACK_RANGES*2]; // ranges sent with previous Ack if any + }; + + inline uint64_t CreateHeaderMask (const uint8_t * kh, const uint8_t * nonce) + { + uint64_t data = 0; + i2p::crypto::ChaCha20 ((uint8_t *)&data, 8, kh, nonce, (uint8_t *)&data); + return data; + } + + inline void CreateNonce (uint64_t seqn, uint8_t * nonce) + { + memset (nonce, 0, 4); + htole64buf (nonce + 4, seqn); + } +} +} + +#endif diff --git a/libi2pd/SSUData.cpp b/libi2pd/SSUData.cpp deleted file mode 100644 index 3ad5e769..00000000 --- a/libi2pd/SSUData.cpp +++ /dev/null @@ -1,513 +0,0 @@ -#include -#include -#include "Log.h" -#include "Timestamp.h" -#include "NetDb.hpp" -#include "SSU.h" -#include "SSUData.h" -#ifdef WITH_EVENTS -#include "Event.h" -#endif - -namespace i2p -{ -namespace transport -{ - void IncompleteMessage::AttachNextFragment (const uint8_t * fragment, size_t fragmentSize) - { - if (msg->len + fragmentSize > msg->maxLen) - { - LogPrint (eLogWarning, "SSU: I2NP message size ", msg->maxLen, " is not enough"); - auto newMsg = NewI2NPMessage (); - *newMsg = *msg; - msg = newMsg; - } - if (msg->Concat (fragment, fragmentSize) < fragmentSize) - LogPrint (eLogError, "SSU: I2NP buffer overflow ", msg->maxLen); - nextFragmentNum++; - } - - SSUData::SSUData (SSUSession& session): - m_Session (session), m_ResendTimer (session.GetService ()), - m_IncompleteMessagesCleanupTimer (session.GetService ()), - m_MaxPacketSize (session.IsV6 () ? SSU_V6_MAX_PACKET_SIZE : SSU_V4_MAX_PACKET_SIZE), - m_PacketSize (m_MaxPacketSize), m_LastMessageReceivedTime (0) - { - } - - SSUData::~SSUData () - { - } - - void SSUData::Start () - { - ScheduleIncompleteMessagesCleanup (); - } - - void SSUData::Stop () - { - m_ResendTimer.cancel (); - m_IncompleteMessagesCleanupTimer.cancel (); - m_IncompleteMessages.clear (); - m_SentMessages.clear (); - m_ReceivedMessages.clear (); - } - - void SSUData::AdjustPacketSize (std::shared_ptr remoteRouter) - { - if (!remoteRouter) return; - auto ssuAddress = remoteRouter->GetSSUAddress (); - if (ssuAddress && ssuAddress->ssu->mtu) - { - if (m_Session.IsV6 ()) - m_PacketSize = ssuAddress->ssu->mtu - IPV6_HEADER_SIZE - UDP_HEADER_SIZE; - else - m_PacketSize = ssuAddress->ssu->mtu - IPV4_HEADER_SIZE - UDP_HEADER_SIZE; - if (m_PacketSize > 0) - { - // make sure packet size multiple of 16 - m_PacketSize >>= 4; - m_PacketSize <<= 4; - if (m_PacketSize > m_MaxPacketSize) m_PacketSize = m_MaxPacketSize; - LogPrint (eLogDebug, "SSU: MTU=", ssuAddress->ssu->mtu, " packet size=", m_PacketSize); - } - else - { - LogPrint (eLogWarning, "SSU: Unexpected MTU ", ssuAddress->ssu->mtu); - m_PacketSize = m_MaxPacketSize; - } - } - } - - void SSUData::UpdatePacketSize (const i2p::data::IdentHash& remoteIdent) - { - auto routerInfo = i2p::data::netdb.FindRouter (remoteIdent); - if (routerInfo) - AdjustPacketSize (routerInfo); - } - - void SSUData::ProcessSentMessageAck (uint32_t msgID) - { - auto it = m_SentMessages.find (msgID); - if (it != m_SentMessages.end ()) - { - m_SentMessages.erase (it); - if (m_SentMessages.empty ()) - m_ResendTimer.cancel (); - } - } - - void SSUData::ProcessAcks (uint8_t *& buf, uint8_t flag) - { - if (flag & DATA_FLAG_EXPLICIT_ACKS_INCLUDED) - { - // explicit ACKs - uint8_t numAcks =*buf; - buf++; - for (int i = 0; i < numAcks; i++) - ProcessSentMessageAck (bufbe32toh (buf+i*4)); - buf += numAcks*4; - } - if (flag & DATA_FLAG_ACK_BITFIELDS_INCLUDED) - { - // explicit ACK bitfields - uint8_t numBitfields =*buf; - buf++; - for (int i = 0; i < numBitfields; i++) - { - uint32_t msgID = bufbe32toh (buf); - buf += 4; // msgID - auto it = m_SentMessages.find (msgID); - // process individual Ack bitfields - bool isNonLast = false; - int fragment = 0; - do - { - uint8_t bitfield = *buf; - isNonLast = bitfield & 0x80; - bitfield &= 0x7F; // clear MSB - if (bitfield && it != m_SentMessages.end ()) - { - int numSentFragments = it->second->fragments.size (); - // process bits - uint8_t mask = 0x01; - for (int j = 0; j < 7; j++) - { - if (bitfield & mask) - { - if (fragment < numSentFragments) - it->second->fragments[fragment].reset (nullptr); - } - fragment++; - mask <<= 1; - } - } - buf++; - } - while (isNonLast); - } - } - } - - void SSUData::ProcessFragments (uint8_t * buf) - { - uint8_t numFragments = *buf; // number of fragments - buf++; - for (int i = 0; i < numFragments; i++) - { - uint32_t msgID = bufbe32toh (buf); // message ID - buf += 4; - uint8_t frag[4] = {0}; - memcpy (frag + 1, buf, 3); - buf += 3; - uint32_t fragmentInfo = bufbe32toh (frag); // fragment info - uint16_t fragmentSize = fragmentInfo & 0x3FFF; // bits 0 - 13 - bool isLast = fragmentInfo & 0x010000; // bit 16 - uint8_t fragmentNum = fragmentInfo >> 17; // bits 23 - 17 - if (fragmentSize >= SSU_V4_MAX_PACKET_SIZE) - { - LogPrint (eLogError, "SSU: Fragment size ", fragmentSize, " exceeds max SSU packet size"); - return; - } - - // find message with msgID - auto it = m_IncompleteMessages.find (msgID); - if (it == m_IncompleteMessages.end ()) - { - // create new message - auto msg = NewI2NPShortMessage (); - msg->len -= I2NP_SHORT_HEADER_SIZE; - it = m_IncompleteMessages.insert (std::make_pair (msgID, - std::unique_ptr(new IncompleteMessage (msg)))).first; - } - std::unique_ptr& incompleteMessage = it->second; - - // handle current fragment - if (fragmentNum == incompleteMessage->nextFragmentNum) - { - // expected fragment - incompleteMessage->AttachNextFragment (buf, fragmentSize); - if (!isLast && !incompleteMessage->savedFragments.empty ()) - { - // try saved fragments - for (auto it1 = incompleteMessage->savedFragments.begin (); it1 != incompleteMessage->savedFragments.end ();) - { - auto& savedFragment = *it1; - if (savedFragment->fragmentNum == incompleteMessage->nextFragmentNum) - { - incompleteMessage->AttachNextFragment (savedFragment->buf, savedFragment->len); - isLast = savedFragment->isLast; - incompleteMessage->savedFragments.erase (it1++); - } - else - break; - } - if (isLast) - LogPrint (eLogDebug, "SSU: Message ", msgID, " complete"); - } - } - else - { - if (fragmentNum < incompleteMessage->nextFragmentNum) - // duplicate fragment - LogPrint (eLogWarning, "SSU: Duplicate fragment ", (int)fragmentNum, " of message ", msgID, ", ignored"); - else - { - // missing fragment - LogPrint (eLogWarning, "SSU: Missing fragments from ", (int)incompleteMessage->nextFragmentNum, " to ", fragmentNum - 1, " of message ", msgID); - auto savedFragment = new Fragment (fragmentNum, buf, fragmentSize, isLast); - if (incompleteMessage->savedFragments.insert (std::unique_ptr(savedFragment)).second) - incompleteMessage->lastFragmentInsertTime = i2p::util::GetSecondsSinceEpoch (); - else - LogPrint (eLogWarning, "SSU: Fragment ", (int)fragmentNum, " of message ", msgID, " already saved"); - } - isLast = false; - } - - if (isLast) - { - // delete incomplete message - auto msg = incompleteMessage->msg; - incompleteMessage->msg = nullptr; - m_IncompleteMessages.erase (msgID); - // process message - SendMsgAck (msgID); - msg->FromSSU (msgID); - if (m_Session.GetState () == eSessionStateEstablished) - { - if (!m_ReceivedMessages.count (msgID)) - { - m_ReceivedMessages.insert (msgID); - m_LastMessageReceivedTime = i2p::util::GetSecondsSinceEpoch (); - if (!msg->IsExpired ()) - { -#ifdef WITH_EVENTS - QueueIntEvent("transport.recvmsg", m_Session.GetIdentHashBase64(), 1); -#endif - m_Handler.PutNextMessage (msg); - } - else - LogPrint (eLogDebug, "SSU: message expired"); - } - else - LogPrint (eLogWarning, "SSU: Message ", msgID, " already received"); - } - else - { - // we expect DeliveryStatus - if (msg->GetTypeID () == eI2NPDeliveryStatus) - { - LogPrint (eLogDebug, "SSU: session established"); - m_Session.Established (); - } - else - LogPrint (eLogError, "SSU: unexpected message ", (int)msg->GetTypeID ()); - } - } - else - SendFragmentAck (msgID, fragmentNum); - buf += fragmentSize; - } - } - - void SSUData::FlushReceivedMessage () - { - m_Handler.Flush (); - } - - void SSUData::ProcessMessage (uint8_t * buf, size_t len) - { - //uint8_t * start = buf; - uint8_t flag = *buf; - buf++; - LogPrint (eLogDebug, "SSU: Process data, flags=", (int)flag, ", len=", len); - // process acks if presented - if (flag & (DATA_FLAG_ACK_BITFIELDS_INCLUDED | DATA_FLAG_EXPLICIT_ACKS_INCLUDED)) - ProcessAcks (buf, flag); - // extended data if presented - if (flag & DATA_FLAG_EXTENDED_DATA_INCLUDED) - { - uint8_t extendedDataSize = *buf; - buf++; // size - LogPrint (eLogDebug, "SSU: extended data of ", extendedDataSize, " bytes present"); - buf += extendedDataSize; - } - // process data - ProcessFragments (buf); - } - - void SSUData::Send (std::shared_ptr msg) - { - uint32_t msgID = msg->ToSSU (); - if (m_SentMessages.count (msgID) > 0) - { - LogPrint (eLogWarning, "SSU: message ", msgID, " already sent"); - return; - } - if (m_SentMessages.empty ()) // schedule resend at first message only - ScheduleResend (); - - auto ret = m_SentMessages.insert (std::make_pair (msgID, std::unique_ptr(new SentMessage))); - std::unique_ptr& sentMessage = ret.first->second; - if (ret.second) - { - sentMessage->nextResendTime = i2p::util::GetSecondsSinceEpoch () + RESEND_INTERVAL; - sentMessage->numResends = 0; - } - auto& fragments = sentMessage->fragments; - size_t payloadSize = m_PacketSize - sizeof (SSUHeader) - 9; // 9 = flag + #frg(1) + messageID(4) + frag info (3) - size_t len = msg->GetLength (); - uint8_t * msgBuf = msg->GetSSUHeader (); - - uint32_t fragmentNum = 0; - while (len > 0 && fragmentNum <= 127) - { - Fragment * fragment = new Fragment; - fragment->fragmentNum = fragmentNum; - uint8_t * buf = fragment->buf; - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = DATA_FLAG_WANT_REPLY; // for compatibility - payload++; - *payload = 1; // always 1 message fragment per message - payload++; - htobe32buf (payload, msgID); - payload += 4; - bool isLast = (len <= payloadSize) || fragmentNum == 127; // 127 fragments max - size_t size = isLast ? len : payloadSize; - uint32_t fragmentInfo = (fragmentNum << 17); - if (isLast) - fragmentInfo |= 0x010000; - - fragmentInfo |= size; - fragmentInfo = htobe32 (fragmentInfo); - memcpy (payload, (uint8_t *)(&fragmentInfo) + 1, 3); - payload += 3; - memcpy (payload, msgBuf, size); - - size += payload - buf; - if (size & 0x0F) // make sure 16 bytes boundary - size = ((size >> 4) + 1) << 4; // (/16 + 1)*16 - fragment->len = size; - fragments.push_back (std::unique_ptr (fragment)); - - // encrypt message with session key - m_Session.FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, size); - try - { - m_Session.Send (buf, size); - } - catch (boost::system::system_error& ec) - { - LogPrint (eLogWarning, "SSU: Can't send data fragment ", ec.what ()); - } - if (!isLast) - { - len -= payloadSize; - msgBuf += payloadSize; - } - else - len = 0; - fragmentNum++; - } - } - - void SSUData::SendMsgAck (uint32_t msgID) - { - uint8_t buf[48 + 18] = {0}; // actual length is 44 = 37 + 7 but pad it to multiple of 16 - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = DATA_FLAG_EXPLICIT_ACKS_INCLUDED; // flag - payload++; - *payload = 1; // number of ACKs - payload++; - htobe32buf (payload, msgID); // msgID - payload += 4; - *payload = 0; // number of fragments - - // encrypt message with session key - m_Session.FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, 48); - m_Session.Send (buf, 48); - } - - void SSUData::SendFragmentAck (uint32_t msgID, int fragmentNum) - { - if (fragmentNum > 64) - { - LogPrint (eLogWarning, "SSU: Fragment number ", fragmentNum, " exceeds 64"); - return; - } - uint8_t buf[64 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = DATA_FLAG_ACK_BITFIELDS_INCLUDED; // flag - payload++; - *payload = 1; // number of ACK bitfields - payload++; - // one ack - *(uint32_t *)(payload) = htobe32 (msgID); // msgID - payload += 4; - div_t d = div (fragmentNum, 7); - memset (payload, 0x80, d.quot); // 0x80 means non-last - payload += d.quot; - *payload = 0x01 << d.rem; // set corresponding bit - payload++; - *payload = 0; // number of fragments - - size_t len = d.quot < 4 ? 48 : 64; // 48 = 37 + 7 + 4 (3+1) - // encrypt message with session key - m_Session.FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, len); - m_Session.Send (buf, len); - } - - void SSUData::ScheduleResend() - { - m_ResendTimer.cancel (); - m_ResendTimer.expires_from_now (boost::posix_time::seconds(RESEND_INTERVAL)); - auto s = m_Session.shared_from_this(); - m_ResendTimer.async_wait ([s](const boost::system::error_code& ecode) - { s->m_Data.HandleResendTimer (ecode); }); - } - - void SSUData::HandleResendTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - int numResent = 0; - for (auto it = m_SentMessages.begin (); it != m_SentMessages.end ();) - { - if (ts >= it->second->nextResendTime) - { - if (it->second->numResends < MAX_NUM_RESENDS) - { - for (auto& f: it->second->fragments) - if (f) - { - try - { - m_Session.Send (f->buf, f->len); // resend - numResent++; - } - catch (boost::system::system_error& ec) - { - LogPrint (eLogWarning, "SSU: Can't resend data fragment ", ec.what ()); - } - } - - it->second->numResends++; - it->second->nextResendTime += it->second->numResends*RESEND_INTERVAL; - ++it; - } - else - { - LogPrint (eLogInfo, "SSU: message has not been ACKed after ", MAX_NUM_RESENDS, " attempts, deleted"); - it = m_SentMessages.erase (it); - } - } - else - ++it; - } - if (m_SentMessages.empty ()) return; // nothing to resend - if (numResent < MAX_OUTGOING_WINDOW_SIZE) - ScheduleResend (); - else - { - LogPrint (eLogError, "SSU: resend window exceeds max size. Session terminated"); - m_Session.Close (); - } - } - } - - void SSUData::ScheduleIncompleteMessagesCleanup () - { - m_IncompleteMessagesCleanupTimer.cancel (); - m_IncompleteMessagesCleanupTimer.expires_from_now (boost::posix_time::seconds(INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT)); - auto s = m_Session.shared_from_this(); - m_IncompleteMessagesCleanupTimer.async_wait ([s](const boost::system::error_code& ecode) - { s->m_Data.HandleIncompleteMessagesCleanupTimer (ecode); }); - } - - void SSUData::HandleIncompleteMessagesCleanupTimer (const boost::system::error_code& ecode) - { - if (ecode != boost::asio::error::operation_aborted) - { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - for (auto it = m_IncompleteMessages.begin (); it != m_IncompleteMessages.end ();) - { - if (ts > it->second->lastFragmentInsertTime + INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT) - { - LogPrint (eLogWarning, "SSU: message ", it->first, " was not completed in ", INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT, " seconds, deleted"); - it = m_IncompleteMessages.erase (it); - } - else - ++it; - } - // decay - if (m_ReceivedMessages.size () > MAX_NUM_RECEIVED_MESSAGES || - i2p::util::GetSecondsSinceEpoch () > m_LastMessageReceivedTime + DECAY_INTERVAL) - m_ReceivedMessages.clear (); - - ScheduleIncompleteMessagesCleanup (); - } - } -} -} - diff --git a/libi2pd/SSUData.h b/libi2pd/SSUData.h deleted file mode 100644 index fbd167bf..00000000 --- a/libi2pd/SSUData.h +++ /dev/null @@ -1,131 +0,0 @@ -#ifndef SSU_DATA_H__ -#define SSU_DATA_H__ - -#include -#include -#include -#include -#include -#include -#include -#include "I2NPProtocol.h" -#include "Identity.h" -#include "RouterInfo.h" - -namespace i2p -{ -namespace transport -{ - - const size_t SSU_MTU_V4 = 1484; - #ifdef MESHNET - const size_t SSU_MTU_V6 = 1286; - #else - const size_t SSU_MTU_V6 = 1488; - #endif - const size_t IPV4_HEADER_SIZE = 20; - const size_t IPV6_HEADER_SIZE = 40; - const size_t UDP_HEADER_SIZE = 8; - const size_t SSU_V4_MAX_PACKET_SIZE = SSU_MTU_V4 - IPV4_HEADER_SIZE - UDP_HEADER_SIZE; // 1456 - const size_t SSU_V6_MAX_PACKET_SIZE = SSU_MTU_V6 - IPV6_HEADER_SIZE - UDP_HEADER_SIZE; // 1440 - const int RESEND_INTERVAL = 3; // in seconds - const int MAX_NUM_RESENDS = 5; - const int DECAY_INTERVAL = 20; // in seconds - const int INCOMPLETE_MESSAGES_CLEANUP_TIMEOUT = 30; // in seconds - const unsigned int MAX_NUM_RECEIVED_MESSAGES = 1000; // how many msgID we store for duplicates check - const int MAX_OUTGOING_WINDOW_SIZE = 200; // how many unacked message we can store - // data flags - const uint8_t DATA_FLAG_EXTENDED_DATA_INCLUDED = 0x02; - const uint8_t DATA_FLAG_WANT_REPLY = 0x04; - const uint8_t DATA_FLAG_REQUEST_PREVIOUS_ACKS = 0x08; - const uint8_t DATA_FLAG_EXPLICIT_CONGESTION_NOTIFICATION = 0x10; - const uint8_t DATA_FLAG_ACK_BITFIELDS_INCLUDED = 0x40; - const uint8_t DATA_FLAG_EXPLICIT_ACKS_INCLUDED = 0x80; - - struct Fragment - { - int fragmentNum; - size_t len; - bool isLast; - uint8_t buf[SSU_V4_MAX_PACKET_SIZE + 18]; // use biggest - - Fragment () = default; - Fragment (int n, const uint8_t * b, int l, bool last): - fragmentNum (n), len (l), isLast (last) { memcpy (buf, b, len); }; - }; - - struct FragmentCmp - { - bool operator() (const std::unique_ptr& f1, const std::unique_ptr& f2) const - { - return f1->fragmentNum < f2->fragmentNum; - }; - }; - - struct IncompleteMessage - { - std::shared_ptr msg; - int nextFragmentNum; - uint32_t lastFragmentInsertTime; // in seconds - std::set, FragmentCmp> savedFragments; - - IncompleteMessage (std::shared_ptr m): msg (m), nextFragmentNum (0), lastFragmentInsertTime (0) {}; - void AttachNextFragment (const uint8_t * fragment, size_t fragmentSize); - }; - - struct SentMessage - { - std::vector > fragments; - uint32_t nextResendTime; // in seconds - int numResends; - }; - - class SSUSession; - class SSUData - { - public: - - SSUData (SSUSession& session); - ~SSUData (); - - void Start (); - void Stop (); - - void ProcessMessage (uint8_t * buf, size_t len); - void FlushReceivedMessage (); - void Send (std::shared_ptr msg); - - void AdjustPacketSize (std::shared_ptr remoteRouter); - void UpdatePacketSize (const i2p::data::IdentHash& remoteIdent); - - private: - - void SendMsgAck (uint32_t msgID); - void SendFragmentAck (uint32_t msgID, int fragmentNum); - void ProcessAcks (uint8_t *& buf, uint8_t flag); - void ProcessFragments (uint8_t * buf); - void ProcessSentMessageAck (uint32_t msgID); - - void ScheduleResend (); - void HandleResendTimer (const boost::system::error_code& ecode); - - void ScheduleIncompleteMessagesCleanup (); - void HandleIncompleteMessagesCleanupTimer (const boost::system::error_code& ecode); - - - private: - - SSUSession& m_Session; - std::map > m_IncompleteMessages; - std::map > m_SentMessages; - std::unordered_set m_ReceivedMessages; - boost::asio::deadline_timer m_ResendTimer, m_IncompleteMessagesCleanupTimer; - int m_MaxPacketSize, m_PacketSize; - i2p::I2NPMessagesHandler m_Handler; - uint32_t m_LastMessageReceivedTime; // in second - }; -} -} - -#endif - diff --git a/libi2pd/SSUSession.cpp b/libi2pd/SSUSession.cpp deleted file mode 100644 index a7497fd1..00000000 --- a/libi2pd/SSUSession.cpp +++ /dev/null @@ -1,1205 +0,0 @@ -#include -#include "Crypto.h" -#include "Log.h" -#include "Timestamp.h" -#include "RouterContext.h" -#include "Transports.h" -#include "NetDb.hpp" -#include "SSU.h" -#include "SSUSession.h" - -namespace i2p -{ -namespace transport -{ - SSUSession::SSUSession (SSUServer& server, boost::asio::ip::udp::endpoint& remoteEndpoint, - std::shared_ptr router, bool peerTest ): - TransportSession (router, SSU_TERMINATION_TIMEOUT), - m_Server (server), m_RemoteEndpoint (remoteEndpoint), m_ConnectTimer (GetService ()), - m_IsPeerTest (peerTest),m_State (eSessionStateUnknown), m_IsSessionKey (false), - m_RelayTag (0), m_SentRelayTag (0), m_Data (*this), m_IsDataReceived (false) - { - if (router) - { - // we are client - auto address = router->GetSSUAddress (false); - if (address) m_IntroKey = address->ssu->key; - m_Data.AdjustPacketSize (router); // mtu - } - else - { - // we are server - auto address = i2p::context.GetRouterInfo ().GetSSUAddress (false); - if (address) m_IntroKey = address->ssu->key; - } - m_CreationTime = i2p::util::GetSecondsSinceEpoch (); - } - - SSUSession::~SSUSession () - { - } - - boost::asio::io_service& SSUSession::GetService () - { - return IsV6 () ? m_Server.GetServiceV6 () : m_Server.GetService (); - } - - void SSUSession::CreateAESandMacKey (const uint8_t * pubKey) - { - uint8_t sharedKey[256]; - m_DHKeysPair->Agree (pubKey, sharedKey); - - uint8_t * sessionKey = m_SessionKey, * macKey = m_MacKey; - if (sharedKey[0] & 0x80) - { - sessionKey[0] = 0; - memcpy (sessionKey + 1, sharedKey, 31); - memcpy (macKey, sharedKey + 31, 32); - } - else if (sharedKey[0]) - { - memcpy (sessionKey, sharedKey, 32); - memcpy (macKey, sharedKey + 32, 32); - } - else - { - // find first non-zero byte - uint8_t * nonZero = sharedKey + 1; - while (!*nonZero) - { - nonZero++; - if (nonZero - sharedKey > 32) - { - LogPrint (eLogWarning, "SSU: first 32 bytes of shared key is all zeros. Ignored"); - return; - } - } - - memcpy (sessionKey, nonZero, 32); - SHA256(nonZero, 64 - (nonZero - sharedKey), macKey); - } - m_IsSessionKey = true; - m_SessionKeyEncryption.SetKey (m_SessionKey); - m_SessionKeyDecryption.SetKey (m_SessionKey); - } - - void SSUSession::ProcessNextMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint) - { - m_NumReceivedBytes += len; - i2p::transport::transports.UpdateReceivedBytes (len); - if (m_State == eSessionStateIntroduced) - { - // HolePunch received - LogPrint (eLogDebug, "SSU: HolePunch of ", len, " bytes received"); - m_State = eSessionStateUnknown; - Connect (); - } - else - { - if (!len) return; // ignore zero-length packets - if (m_State == eSessionStateEstablished) - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - - if (m_IsSessionKey && Validate (buf, len, m_MacKey)) // try session key first - DecryptSessionKey (buf, len); - else - { - if (m_State == eSessionStateEstablished) Reset (); // new session key required - // try intro key depending on side - if (Validate (buf, len, m_IntroKey)) - Decrypt (buf, len, m_IntroKey); - else - { - // try own intro key - auto address = i2p::context.GetRouterInfo ().GetSSUAddress (false); - if (!address) - { - LogPrint (eLogInfo, "SSU is not supported"); - return; - } - if (Validate (buf, len, address->ssu->key)) - Decrypt (buf, len, address->ssu->key); - else - { - LogPrint (eLogWarning, "SSU: MAC verification failed ", len, " bytes from ", senderEndpoint); - m_Server.DeleteSession (shared_from_this ()); - return; - } - } - } - // successfully decrypted - ProcessMessage (buf, len, senderEndpoint); - } - } - - size_t SSUSession::GetSSUHeaderSize (const uint8_t * buf) const - { - size_t s = sizeof (SSUHeader); - if (((const SSUHeader *)buf)->IsExtendedOptions ()) - s += buf[s] + 1; // byte right after header is extended options length - return s; - } - - void SSUSession::ProcessMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint) - { - len -= (len & 0x0F); // %16, delete extra padding - if (len <= sizeof (SSUHeader)) return; // drop empty message - //TODO: since we are accessing a uint8_t this is unlikely to crash due to alignment but should be improved - auto headerSize = GetSSUHeaderSize (buf); - if (headerSize >= len) - { - LogPrint (eLogError, "SSU header size ", headerSize, " exceeds packet length ", len); - return; - } - SSUHeader * header = (SSUHeader *)buf; - switch (header->GetPayloadType ()) - { - case PAYLOAD_TYPE_DATA: - ProcessData (buf + headerSize, len - headerSize); - break; - case PAYLOAD_TYPE_SESSION_REQUEST: - ProcessSessionRequest (buf, len); // buf with header - break; - case PAYLOAD_TYPE_SESSION_CREATED: - ProcessSessionCreated (buf, len); // buf with header - break; - case PAYLOAD_TYPE_SESSION_CONFIRMED: - ProcessSessionConfirmed (buf, len); // buf with header - break; - case PAYLOAD_TYPE_PEER_TEST: - LogPrint (eLogDebug, "SSU: peer test received"); - ProcessPeerTest (buf + headerSize, len - headerSize, senderEndpoint); - break; - case PAYLOAD_TYPE_SESSION_DESTROYED: - { - LogPrint (eLogDebug, "SSU: session destroy received"); - m_Server.DeleteSession (shared_from_this ()); - break; - } - case PAYLOAD_TYPE_RELAY_RESPONSE: - ProcessRelayResponse (buf + headerSize, len - headerSize); - if (m_State != eSessionStateEstablished) - m_Server.DeleteSession (shared_from_this ()); - break; - case PAYLOAD_TYPE_RELAY_REQUEST: - LogPrint (eLogDebug, "SSU: relay request received"); - ProcessRelayRequest (buf + headerSize, len - headerSize, senderEndpoint); - break; - case PAYLOAD_TYPE_RELAY_INTRO: - LogPrint (eLogDebug, "SSU: relay intro received"); - ProcessRelayIntro (buf + headerSize, len - headerSize); - break; - default: - LogPrint (eLogWarning, "SSU: Unexpected payload type ", (int)header->GetPayloadType ()); - } - } - - void SSUSession::ProcessSessionRequest (const uint8_t * buf, size_t len) - { - LogPrint (eLogDebug, "SSU message: session request"); - bool sendRelayTag = true; - auto headerSize = sizeof (SSUHeader); - if (((SSUHeader *)buf)->IsExtendedOptions ()) - { - uint8_t extendedOptionsLen = buf[headerSize]; - headerSize++; - if (extendedOptionsLen >= 3) // options are presented - { - uint16_t flags = bufbe16toh (buf + headerSize); - sendRelayTag = flags & EXTENDED_OPTIONS_FLAG_REQUEST_RELAY_TAG; - } - headerSize += extendedOptionsLen; - } - if (headerSize >= len) - { - LogPrint (eLogError, "Session request header size ", headerSize, " exceeds packet length ", len); - return; - } - if (!m_DHKeysPair) - m_DHKeysPair = transports.GetNextDHKeysPair (); - CreateAESandMacKey (buf + headerSize); - SendSessionCreated (buf + headerSize, sendRelayTag); - } - - void SSUSession::ProcessSessionCreated (uint8_t * buf, size_t len) - { - if (!IsOutgoing () || !m_DHKeysPair) - { - LogPrint (eLogWarning, "SSU: Unsolicited session created message"); - return; - } - - LogPrint (eLogDebug, "SSU message: session created"); - m_ConnectTimer.cancel (); // connect timer - SignedData s; // x,y, our IP, our port, remote IP, remote port, relayTag, signed on time - auto headerSize = GetSSUHeaderSize (buf); - if (headerSize >= len) - { - LogPrint (eLogError, "Session created header size ", headerSize, " exceeds packet length ", len); - return; - } - uint8_t * payload = buf + headerSize; - uint8_t * y = payload; - CreateAESandMacKey (y); - s.Insert (m_DHKeysPair->GetPublicKey (), 256); // x - s.Insert (y, 256); // y - payload += 256; - uint8_t addressSize = *payload; - payload += 1; // size - uint8_t * ourAddress = payload; - boost::asio::ip::address ourIP; - if (addressSize == 4) // v4 - { - boost::asio::ip::address_v4::bytes_type bytes; - memcpy (bytes.data (), ourAddress, 4); - ourIP = boost::asio::ip::address_v4 (bytes); - } - else // v6 - { - boost::asio::ip::address_v6::bytes_type bytes; - memcpy (bytes.data (), ourAddress, 16); - ourIP = boost::asio::ip::address_v6 (bytes); - } - s.Insert (ourAddress, addressSize); // our IP - payload += addressSize; // address - uint16_t ourPort = bufbe16toh (payload); - s.Insert (payload, 2); // our port - payload += 2; // port - if (m_RemoteEndpoint.address ().is_v4 ()) - s.Insert (m_RemoteEndpoint.address ().to_v4 ().to_bytes ().data (), 4); // remote IP v4 - else - s.Insert (m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data (), 16); // remote IP v6 - s.Insert (htobe16 (m_RemoteEndpoint.port ())); // remote port - s.Insert (payload, 8); // relayTag and signed on time - m_RelayTag = bufbe32toh (payload); - payload += 4; // relayTag - if (i2p::context.GetStatus () == eRouterStatusTesting) - { - auto ts = i2p::util::GetSecondsSinceEpoch (); - uint32_t signedOnTime = bufbe32toh(payload); - if (signedOnTime < ts - SSU_CLOCK_SKEW || signedOnTime > ts + SSU_CLOCK_SKEW) - { - LogPrint (eLogError, "SSU: clock skew detected ", (int)ts - signedOnTime, ". Check your clock"); - i2p::context.SetError (eRouterErrorClockSkew); - } - } - payload += 4; // signed on time - // decrypt signature - size_t signatureLen = m_RemoteIdentity->GetSignatureLen (); - size_t paddingSize = signatureLen & 0x0F; // %16 - if (paddingSize > 0) signatureLen += (16 - paddingSize); - //TODO: since we are accessing a uint8_t this is unlikely to crash due to alignment but should be improved - m_SessionKeyDecryption.SetIV (((SSUHeader *)buf)->iv); - m_SessionKeyDecryption.Decrypt (payload, signatureLen, payload); // TODO: non-const payload - // verify signature - if (s.Verify (m_RemoteIdentity, payload)) - { - LogPrint (eLogInfo, "SSU: Our external address is ", ourIP.to_string (), ":", ourPort); - i2p::context.UpdateAddress (ourIP); - SendSessionConfirmed (y, ourAddress, addressSize + 2); - } - else - { - LogPrint (eLogError, "SSU: message 'created' signature verification failed"); - Failed (); - } - } - - void SSUSession::ProcessSessionConfirmed (const uint8_t * buf, size_t len) - { - LogPrint (eLogDebug, "SSU: Session confirmed received"); - auto headerSize = GetSSUHeaderSize (buf); - if (headerSize >= len) - { - LogPrint (eLogError, "SSU: Session confirmed header size ", len, " exceeds packet length ", len); - return; - } - const uint8_t * payload = buf + headerSize; - payload++; // identity fragment info - uint16_t identitySize = bufbe16toh (payload); - payload += 2; // size of identity fragment - auto identity = std::make_shared (payload, identitySize); - auto existing = i2p::data::netdb.FindRouter (identity->GetIdentHash ()); // check if exists already - SetRemoteIdentity (existing ? existing->GetRouterIdentity () : identity); - m_Data.UpdatePacketSize (m_RemoteIdentity->GetIdentHash ()); - payload += identitySize; // identity - auto ts = i2p::util::GetSecondsSinceEpoch (); - uint32_t signedOnTime = bufbe32toh(payload); - if (signedOnTime < ts - SSU_CLOCK_SKEW || signedOnTime > ts + SSU_CLOCK_SKEW) - { - LogPrint (eLogError, "SSU message 'confirmed' time difference ", (int)ts - signedOnTime, " exceeds clock skew"); - Failed (); - return; - } - if (m_SignedData) - m_SignedData->Insert (payload, 4); // insert Alice's signed on time - payload += 4; // signed-on time - size_t paddingSize = (payload - buf) + m_RemoteIdentity->GetSignatureLen (); - paddingSize &= 0x0F; // %16 - if (paddingSize > 0) paddingSize = 16 - paddingSize; - payload += paddingSize; - // verify signature - if (m_SignedData && m_SignedData->Verify (m_RemoteIdentity, payload)) - { - m_Data.Send (CreateDeliveryStatusMsg (0)); - Established (); - } - else - { - LogPrint (eLogError, "SSU message 'confirmed' signature verification failed"); - Failed (); - } - } - - void SSUSession::SendSessionRequest () - { - uint8_t buf[320 + 18] = {0}; // 304 bytes for ipv4, 320 for ipv6 - uint8_t * payload = buf + sizeof (SSUHeader); - uint8_t flag = 0; - // fill extended options, 3 bytes extended options don't change message size - if (i2p::context.GetStatus () == eRouterStatusOK) // we don't need relays - { - // tell out peer to now assign relay tag - flag = SSU_HEADER_EXTENDED_OPTIONS_INCLUDED; - *payload = 2; payload++; // 1 byte length - uint16_t flags = 0; // clear EXTENDED_OPTIONS_FLAG_REQUEST_RELAY_TAG - htobe16buf (payload, flags); - payload += 2; - } - // fill payload - memcpy (payload, m_DHKeysPair->GetPublicKey (), 256); // x - bool isV4 = m_RemoteEndpoint.address ().is_v4 (); - if (isV4) - { - payload[256] = 4; - memcpy (payload + 257, m_RemoteEndpoint.address ().to_v4 ().to_bytes ().data(), 4); - } - else - { - payload[256] = 16; - memcpy (payload + 257, m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data(), 16); - } - // encrypt and send - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_REQUEST, buf, isV4 ? 304 : 320, m_IntroKey, iv, m_IntroKey, flag); - m_Server.Send (buf, isV4 ? 304 : 320, m_RemoteEndpoint); - } - - void SSUSession::SendRelayRequest (const i2p::data::RouterInfo::Introducer& introducer, uint32_t nonce) - { - auto address = i2p::context.GetRouterInfo ().GetSSUAddress (false); - if (!address) - { - LogPrint (eLogInfo, "SSU is not supported"); - return; - } - - uint8_t buf[96 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - htobe32buf (payload, introducer.iTag); - payload += 4; - *payload = 0; // no address - payload++; - htobuf16(payload, 0); // port = 0 - payload += 2; - *payload = 0; // challenge - payload++; - memcpy (payload, (const uint8_t *)address->ssu->key, 32); - payload += 32; - htobe32buf (payload, nonce); // nonce - - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - if (m_State == eSessionStateEstablished) - FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_REQUEST, buf, 96, m_SessionKey, iv, m_MacKey); - else - FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_REQUEST, buf, 96, introducer.iKey, iv, introducer.iKey); - m_Server.Send (buf, 96, m_RemoteEndpoint); - } - - void SSUSession::SendSessionCreated (const uint8_t * x, bool sendRelayTag) - { - auto address = IsV6 () ? i2p::context.GetRouterInfo ().GetSSUV6Address () : - i2p::context.GetRouterInfo ().GetSSUAddress (true); //v4 only - if (!address) - { - LogPrint (eLogInfo, "SSU is not supported"); - return; - } - SignedData s; // x,y, remote IP, remote port, our IP, our port, relayTag, signed on time - s.Insert (x, 256); // x - - uint8_t buf[384 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - memcpy (payload, m_DHKeysPair->GetPublicKey (), 256); - s.Insert (payload, 256); // y - payload += 256; - if (m_RemoteEndpoint.address ().is_v4 ()) - { - // ipv4 - *payload = 4; - payload++; - memcpy (payload, m_RemoteEndpoint.address ().to_v4 ().to_bytes ().data(), 4); - s.Insert (payload, 4); // remote endpoint IP V4 - payload += 4; - } - else - { - // ipv6 - *payload = 16; - payload++; - memcpy (payload, m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data(), 16); - s.Insert (payload, 16); // remote endpoint IP V6 - payload += 16; - } - htobe16buf (payload, m_RemoteEndpoint.port ()); - s.Insert (payload, 2); // remote port - payload += 2; - if (address->host.is_v4 ()) - s.Insert (address->host.to_v4 ().to_bytes ().data (), 4); // our IP V4 - else - s.Insert (address->host.to_v6 ().to_bytes ().data (), 16); // our IP V6 - s.Insert (htobe16 (address->port)); // our port - if (sendRelayTag && i2p::context.GetRouterInfo ().IsIntroducer () && !IsV6 ()) - { - RAND_bytes((uint8_t *)&m_SentRelayTag, 4); - if (!m_SentRelayTag) m_SentRelayTag = 1; - } - htobe32buf (payload, m_SentRelayTag); - payload += 4; // relay tag - htobe32buf (payload, i2p::util::GetSecondsSinceEpoch ()); // signed on time - payload += 4; - s.Insert (payload - 8, 4); // relayTag - // we have to store this signed data for session confirmed - // same data but signed on time, it will Alice's there - m_SignedData = std::unique_ptr(new SignedData (s)); - s.Insert (payload - 4, 4); // BOB's signed on time - s.Sign (i2p::context.GetPrivateKeys (), payload); // DSA signature - - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - // encrypt signature and padding with newly created session key - size_t signatureLen = i2p::context.GetIdentity ()->GetSignatureLen (); - size_t paddingSize = signatureLen & 0x0F; // %16 - if (paddingSize > 0) - { - // fill random padding - RAND_bytes(payload + signatureLen, (16 - paddingSize)); - signatureLen += (16 - paddingSize); - } - m_SessionKeyEncryption.SetIV (iv); - m_SessionKeyEncryption.Encrypt (payload, signatureLen, payload); - payload += signatureLen; - size_t msgLen = payload - buf; - - // encrypt message with intro key - FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CREATED, buf, msgLen, m_IntroKey, iv, m_IntroKey); - Send (buf, msgLen); - } - - void SSUSession::SendSessionConfirmed (const uint8_t * y, const uint8_t * ourAddress, size_t ourAddressLen) - { - uint8_t buf[512 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = 1; // 1 fragment - payload++; // info - size_t identLen = i2p::context.GetIdentity ()->GetFullLen (); // 387+ bytes - htobe16buf (payload, identLen); - payload += 2; // cursize - i2p::context.GetIdentity ()->ToBuffer (payload, identLen); - payload += identLen; - uint32_t signedOnTime = i2p::util::GetSecondsSinceEpoch (); - htobe32buf (payload, signedOnTime); // signed on time - payload += 4; - auto signatureLen = i2p::context.GetIdentity ()->GetSignatureLen (); - size_t paddingSize = ((payload - buf) + signatureLen)%16; - if (paddingSize > 0) paddingSize = 16 - paddingSize; - RAND_bytes(payload, paddingSize); // fill padding with random - payload += paddingSize; // padding size - // signature - SignedData s; // x,y, our IP, our port, remote IP, remote port, relayTag, our signed on time - s.Insert (m_DHKeysPair->GetPublicKey (), 256); // x - s.Insert (y, 256); // y - s.Insert (ourAddress, ourAddressLen); // our address/port as seem by party - if (m_RemoteEndpoint.address ().is_v4 ()) - s.Insert (m_RemoteEndpoint.address ().to_v4 ().to_bytes ().data (), 4); // remote IP V4 - else - s.Insert (m_RemoteEndpoint.address ().to_v6 ().to_bytes ().data (), 16); // remote IP V6 - s.Insert (htobe16 (m_RemoteEndpoint.port ())); // remote port - s.Insert (htobe32 (m_RelayTag)); // relay tag - s.Insert (htobe32 (signedOnTime)); // signed on time - s.Sign (i2p::context.GetPrivateKeys (), payload); // DSA signature - payload += signatureLen; - - size_t msgLen = payload - buf; - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - // encrypt message with session key - FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CONFIRMED, buf, msgLen, m_SessionKey, iv, m_MacKey); - Send (buf, msgLen); - } - - void SSUSession::ProcessRelayRequest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& from) - { - uint32_t relayTag = bufbe32toh (buf); - auto session = m_Server.FindRelaySession (relayTag); - if (session) - { - buf += 4; // relay tag - uint8_t size = *buf; - buf++; // size - buf += size; // address - buf += 2; // port - uint8_t challengeSize = *buf; - buf++; // challenge size - buf += challengeSize; - const uint8_t * introKey = buf; - buf += 32; // introkey - uint32_t nonce = bufbe32toh (buf); - SendRelayResponse (nonce, from, introKey, session->m_RemoteEndpoint); - SendRelayIntro (session, from); - } - } - - void SSUSession::SendRelayResponse (uint32_t nonce, const boost::asio::ip::udp::endpoint& from, - const uint8_t * introKey, const boost::asio::ip::udp::endpoint& to) - { - // Charlie's address always v4 - if (!to.address ().is_v4 ()) - { - LogPrint (eLogWarning, "SSU: Charlie's IP must be v4"); - return; - } - uint8_t buf[80 + 18] = {0}; // 64 Alice's ipv4 and 80 Alice's ipv6 - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = 4; - payload++; // size - htobe32buf (payload, to.address ().to_v4 ().to_ulong ()); // Charlie's IP - payload += 4; // address - htobe16buf (payload, to.port ()); // Charlie's port - payload += 2; // port - // Alice - bool isV4 = from.address ().is_v4 (); // Alice's - if (isV4) - { - *payload = 4; - payload++; // size - memcpy (payload, from.address ().to_v4 ().to_bytes ().data (), 4); // Alice's IP V4 - payload += 4; // address - } - else - { - *payload = 16; - payload++; // size - memcpy (payload, from.address ().to_v6 ().to_bytes ().data (), 16); // Alice's IP V6 - payload += 16; // address - } - htobe16buf (payload, from.port ()); // Alice's port - payload += 2; // port - htobe32buf (payload, nonce); - - if (m_State == eSessionStateEstablished) - { - // encrypt with session key - FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_RESPONSE, buf, isV4 ? 64 : 80); - Send (buf, isV4 ? 64 : 80); - } - else - { - // ecrypt with Alice's intro key - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_RESPONSE, buf, isV4 ? 64 : 80, introKey, iv, introKey); - m_Server.Send (buf, isV4 ? 64 : 80, from); - } - LogPrint (eLogDebug, "SSU: relay response sent"); - } - - void SSUSession::SendRelayIntro (std::shared_ptr session, const boost::asio::ip::udp::endpoint& from) - { - if (!session) return; - // Alice's address always v4 - if (!from.address ().is_v4 ()) - { - LogPrint (eLogWarning, "SSU: Alice's IP must be v4"); - return; - } - uint8_t buf[48 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = 4; - payload++; // size - htobe32buf (payload, from.address ().to_v4 ().to_ulong ()); // Alice's IP - payload += 4; // address - htobe16buf (payload, from.port ()); // Alice's port - payload += 2; // port - *payload = 0; // challenge size - uint8_t iv[16]; - RAND_bytes (iv, 16); // random iv - FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_INTRO, buf, 48, session->m_SessionKey, iv, session->m_MacKey); - m_Server.Send (buf, 48, session->m_RemoteEndpoint); - LogPrint (eLogDebug, "SSU: relay intro sent"); - } - - void SSUSession::ProcessRelayResponse (const uint8_t * buf, size_t len) - { - LogPrint (eLogDebug, "SSU message: Relay response received"); - uint8_t remoteSize = *buf; - buf++; // remote size - boost::asio::ip::address_v4 remoteIP (bufbe32toh (buf)); - buf += remoteSize; // remote address - uint16_t remotePort = bufbe16toh (buf); - buf += 2; // remote port - uint8_t ourSize = *buf; - buf++; // our size - boost::asio::ip::address ourIP; - if (ourSize == 4) - { - boost::asio::ip::address_v4::bytes_type bytes; - memcpy (bytes.data (), buf, 4); - ourIP = boost::asio::ip::address_v4 (bytes); - } - else - { - boost::asio::ip::address_v6::bytes_type bytes; - memcpy (bytes.data (), buf, 16); - ourIP = boost::asio::ip::address_v6 (bytes); - } - buf += ourSize; // our address - uint16_t ourPort = bufbe16toh (buf); - buf += 2; // our port - LogPrint (eLogInfo, "SSU: Our external address is ", ourIP.to_string (), ":", ourPort); - i2p::context.UpdateAddress (ourIP); - uint32_t nonce = bufbe32toh (buf); - buf += 4; // nonce - auto it = m_RelayRequests.find (nonce); - if (it != m_RelayRequests.end ()) - { - // check if we are waiting for introduction - boost::asio::ip::udp::endpoint remoteEndpoint (remoteIP, remotePort); - if (!m_Server.FindSession (remoteEndpoint)) - { - // we didn't have correct endpoint when sent relay request - // now we do - LogPrint (eLogInfo, "SSU: RelayReponse connecting to endpoint ", remoteEndpoint); - if (i2p::context.GetRouterInfo ().UsesIntroducer ()) // if we are unreachable - m_Server.Send (buf, 0, remoteEndpoint); // send HolePunch - m_Server.CreateDirectSession (it->second, remoteEndpoint, false); - } - // delete request - m_RelayRequests.erase (it); - } - else - LogPrint (eLogError, "SSU: Unsolicited RelayResponse, nonce=", nonce); - } - - void SSUSession::ProcessRelayIntro (const uint8_t * buf, size_t len) - { - uint8_t size = *buf; - if (size == 4) - { - buf++; // size - boost::asio::ip::address_v4 address (bufbe32toh (buf)); - buf += 4; // address - uint16_t port = bufbe16toh (buf); - // send hole punch of 0 bytes - m_Server.Send (buf, 0, boost::asio::ip::udp::endpoint (address, port)); - } - else - LogPrint (eLogWarning, "SSU: Address size ", size, " is not supported"); - } - - void SSUSession::FillHeaderAndEncrypt (uint8_t payloadType, uint8_t * buf, size_t len, - const i2p::crypto::AESKey& aesKey, const uint8_t * iv, const i2p::crypto::MACKey& macKey, uint8_t flag) - { - if (len < sizeof (SSUHeader)) - { - LogPrint (eLogError, "SSU: Unexpected packet length ", len); - return; - } - SSUHeader * header = (SSUHeader *)buf; - memcpy (header->iv, iv, 16); - header->flag = flag | (payloadType << 4); // MSB is 0 - htobe32buf (header->time, i2p::util::GetSecondsSinceEpoch ()); - uint8_t * encrypted = &header->flag; - uint16_t encryptedLen = len - (encrypted - buf); - i2p::crypto::CBCEncryption encryption; - encryption.SetKey (aesKey); - encryption.SetIV (iv); - encryption.Encrypt (encrypted, encryptedLen, encrypted); - // assume actual buffer size is 18 (16 + 2) bytes more - memcpy (buf + len, iv, 16); - htobe16buf (buf + len + 16, encryptedLen); - i2p::crypto::HMACMD5Digest (encrypted, encryptedLen + 18, macKey, header->mac); - } - - void SSUSession::FillHeaderAndEncrypt (uint8_t payloadType, uint8_t * buf, size_t len) - { - if (len < sizeof (SSUHeader)) - { - LogPrint (eLogError, "SSU: Unexpected packet length ", len); - return; - } - SSUHeader * header = (SSUHeader *)buf; - RAND_bytes (header->iv, 16); // random iv - m_SessionKeyEncryption.SetIV (header->iv); - header->flag = payloadType << 4; // MSB is 0 - htobe32buf (header->time, i2p::util::GetSecondsSinceEpoch ()); - uint8_t * encrypted = &header->flag; - uint16_t encryptedLen = len - (encrypted - buf); - m_SessionKeyEncryption.Encrypt (encrypted, encryptedLen, encrypted); - // assume actual buffer size is 18 (16 + 2) bytes more - memcpy (buf + len, header->iv, 16); - htobe16buf (buf + len + 16, encryptedLen); - i2p::crypto::HMACMD5Digest (encrypted, encryptedLen + 18, m_MacKey, header->mac); - } - - void SSUSession::Decrypt (uint8_t * buf, size_t len, const i2p::crypto::AESKey& aesKey) - { - if (len < sizeof (SSUHeader)) - { - LogPrint (eLogError, "SSU: Unexpected packet length ", len); - return; - } - SSUHeader * header = (SSUHeader *)buf; - uint8_t * encrypted = &header->flag; - uint16_t encryptedLen = len - (encrypted - buf); - i2p::crypto::CBCDecryption decryption; - decryption.SetKey (aesKey); - decryption.SetIV (header->iv); - decryption.Decrypt (encrypted, encryptedLen, encrypted); - } - - void SSUSession::DecryptSessionKey (uint8_t * buf, size_t len) - { - if (len < sizeof (SSUHeader)) - { - LogPrint (eLogError, "SSU: Unexpected packet length ", len); - return; - } - SSUHeader * header = (SSUHeader *)buf; - uint8_t * encrypted = &header->flag; - uint16_t encryptedLen = len - (encrypted - buf); - if (encryptedLen > 0) - { - m_SessionKeyDecryption.SetIV (header->iv); - m_SessionKeyDecryption.Decrypt (encrypted, encryptedLen, encrypted); - } - } - - bool SSUSession::Validate (uint8_t * buf, size_t len, const i2p::crypto::MACKey& macKey) - { - if (len < sizeof (SSUHeader)) - { - LogPrint (eLogError, "SSU: Unexpected packet length ", len); - return false; - } - SSUHeader * header = (SSUHeader *)buf; - uint8_t * encrypted = &header->flag; - uint16_t encryptedLen = len - (encrypted - buf); - // assume actual buffer size is 18 (16 + 2) bytes more - memcpy (buf + len, header->iv, 16); - htobe16buf (buf + len + 16, encryptedLen); - uint8_t digest[16]; - i2p::crypto::HMACMD5Digest (encrypted, encryptedLen + 18, macKey, digest); - return !memcmp (header->mac, digest, 16); - } - - void SSUSession::Connect () - { - if (m_State == eSessionStateUnknown) - { - // set connect timer - ScheduleConnectTimer (); - m_DHKeysPair = transports.GetNextDHKeysPair (); - SendSessionRequest (); - } - } - - void SSUSession::WaitForConnect () - { - if (!IsOutgoing ()) // incoming session - ScheduleConnectTimer (); - else - LogPrint (eLogError, "SSU: wait for connect for outgoing session"); - } - - void SSUSession::ScheduleConnectTimer () - { - m_ConnectTimer.cancel (); - m_ConnectTimer.expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT)); - m_ConnectTimer.async_wait (std::bind (&SSUSession::HandleConnectTimer, - shared_from_this (), std::placeholders::_1)); -} - - void SSUSession::HandleConnectTimer (const boost::system::error_code& ecode) - { - if (!ecode) - { - // timeout expired - LogPrint (eLogWarning, "SSU: session with ", m_RemoteEndpoint, " was not established after ", SSU_CONNECT_TIMEOUT, " seconds"); - Failed (); - } - } - - void SSUSession::Introduce (const i2p::data::RouterInfo::Introducer& introducer, - std::shared_ptr to) - { - if (m_State == eSessionStateUnknown) - { - // set connect timer - m_ConnectTimer.expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT)); - m_ConnectTimer.async_wait (std::bind (&SSUSession::HandleConnectTimer, - shared_from_this (), std::placeholders::_1)); - } - uint32_t nonce; - RAND_bytes ((uint8_t *)&nonce, 4); - m_RelayRequests[nonce] = to; - SendRelayRequest (introducer, nonce); - } - - void SSUSession::WaitForIntroduction () - { - m_State = eSessionStateIntroduced; - // set connect timer - m_ConnectTimer.expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT)); - m_ConnectTimer.async_wait (std::bind (&SSUSession::HandleConnectTimer, - shared_from_this (), std::placeholders::_1)); - } - - void SSUSession::Close () - { - SendSessionDestroyed (); - Reset (); - m_State = eSessionStateClosed; - } - - void SSUSession::Reset () - { - m_State = eSessionStateUnknown; - transports.PeerDisconnected (shared_from_this ()); - m_Data.Stop (); - m_ConnectTimer.cancel (); - if (m_SentRelayTag) - { - m_Server.RemoveRelay (m_SentRelayTag); // relay tag is not valid anymore - m_SentRelayTag = 0; - } - m_DHKeysPair = nullptr; - m_SignedData = nullptr; - m_IsSessionKey = false; - } - - void SSUSession::Done () - { - GetService ().post (std::bind (&SSUSession::Failed, shared_from_this ())); - } - - void SSUSession::Established () - { - m_State = eSessionStateEstablished; - m_DHKeysPair = nullptr; - m_SignedData = nullptr; - m_Data.Start (); - transports.PeerConnected (shared_from_this ()); - if (m_IsPeerTest) - SendPeerTest (); - if (m_SentRelayTag) - m_Server.AddRelay (m_SentRelayTag, shared_from_this ()); - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - } - - void SSUSession::Failed () - { - if (m_State != eSessionStateFailed) - { - m_State = eSessionStateFailed; - m_Server.DeleteSession (shared_from_this ()); - } - } - - void SSUSession::SendI2NPMessages (const std::vector >& msgs) - { - GetService ().post (std::bind (&SSUSession::PostI2NPMessages, shared_from_this (), msgs)); - } - - void SSUSession::PostI2NPMessages (std::vector > msgs) - { - if (m_State == eSessionStateEstablished) - { - for (const auto& it: msgs) - if (it) - { - if (it->GetLength () <= SSU_MAX_I2NP_MESSAGE_SIZE) - m_Data.Send (it); - else - LogPrint (eLogError, "SSU: I2NP message of size ", it->GetLength (), " can't be sent. Dropped"); - } - } - } - - void SSUSession::ProcessData (uint8_t * buf, size_t len) - { - m_Data.ProcessMessage (buf, len); - m_IsDataReceived = true; - } - - void SSUSession::FlushData () - { - if (m_IsDataReceived) - { - m_Data.FlushReceivedMessage (); - m_IsDataReceived = false; - } - } - - void SSUSession::ProcessPeerTest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint) - { - uint32_t nonce = bufbe32toh (buf); // 4 bytes - uint8_t size = buf[4]; // 1 byte - const uint8_t * address = buf + 5; // big endian, size bytes - uint16_t port = buf16toh(buf + size + 5); // big endian, 2 bytes - const uint8_t * introKey = buf + size + 7; - if (port && (size != 4) && (size != 16)) - { - LogPrint (eLogWarning, "SSU: Address of ", size, " bytes not supported"); - return; - } - switch (m_Server.GetPeerTestParticipant (nonce)) - { - // existing test - case ePeerTestParticipantAlice1: - { - if (m_Server.GetPeerTestSession (nonce) == shared_from_this ()) // Alice-Bob - { - LogPrint (eLogDebug, "SSU: peer test from Bob. We are Alice"); - if (i2p::context.GetStatus () == eRouterStatusTesting) // still not OK - i2p::context.SetStatus (eRouterStatusFirewalled); - } - else - { - LogPrint (eLogDebug, "SSU: first peer test from Charlie. We are Alice"); - if (m_State == eSessionStateEstablished) - LogPrint (eLogWarning, "SSU: first peer test from Charlie through established session. We are Alice"); - i2p::context.SetStatus (eRouterStatusOK); - m_Server.UpdatePeerTest (nonce, ePeerTestParticipantAlice2); - SendPeerTest (nonce, senderEndpoint.address (), senderEndpoint.port (), introKey, true, false); // to Charlie - } - break; - } - case ePeerTestParticipantAlice2: - { - if (m_Server.GetPeerTestSession (nonce) == shared_from_this ()) // Alice-Bob - LogPrint (eLogDebug, "SSU: peer test from Bob. We are Alice"); - else - { - // peer test successive - LogPrint (eLogDebug, "SSU: second peer test from Charlie. We are Alice"); - i2p::context.SetStatus (eRouterStatusOK); - m_Server.RemovePeerTest (nonce); - } - break; - } - case ePeerTestParticipantBob: - { - LogPrint (eLogDebug, "SSU: peer test from Charlie. We are Bob"); - auto session = m_Server.GetPeerTestSession (nonce); // session with Alice from PeerTest - if (session && session->m_State == eSessionStateEstablished) - session->Send (PAYLOAD_TYPE_PEER_TEST, buf, len); // back to Alice - m_Server.RemovePeerTest (nonce); // nonce has been used - break; - } - case ePeerTestParticipantCharlie: - { - LogPrint (eLogDebug, "SSU: peer test from Alice. We are Charlie"); - SendPeerTest (nonce, senderEndpoint.address (), senderEndpoint.port (), introKey); // to Alice with her actual address - m_Server.RemovePeerTest (nonce); // nonce has been used - break; - } - // test not found - case ePeerTestParticipantUnknown: - { - if (m_State == eSessionStateEstablished) - { - // new test - if (port) - { - LogPrint (eLogDebug, "SSU: peer test from Bob. We are Charlie"); - m_Server.NewPeerTest (nonce, ePeerTestParticipantCharlie); - Send (PAYLOAD_TYPE_PEER_TEST, buf, len); // back to Bob - boost::asio::ip::address addr; // Alice's address - if (size == 4) // v4 - { - boost::asio::ip::address_v4::bytes_type bytes; - memcpy (bytes.data (), address, 4); - addr = boost::asio::ip::address_v4 (bytes); - } - else // v6 - { - boost::asio::ip::address_v6::bytes_type bytes; - memcpy (bytes.data (), address, 16); - addr = boost::asio::ip::address_v6 (bytes); - } - SendPeerTest (nonce, addr, be16toh (port), introKey); // to Alice with her address received from Bob - } - else - { - LogPrint (eLogDebug, "SSU: peer test from Alice. We are Bob"); - auto session = senderEndpoint.address ().is_v4 () ? m_Server.GetRandomEstablishedV4Session (shared_from_this ()) : m_Server.GetRandomEstablishedV6Session (shared_from_this ()); // Charlie - if (session) - { - m_Server.NewPeerTest (nonce, ePeerTestParticipantBob, shared_from_this ()); - session->SendPeerTest (nonce, senderEndpoint.address (), senderEndpoint.port (), introKey, false); // to Charlie with Alice's actual address - } - } - } - else - LogPrint (eLogError, "SSU: unexpected peer test"); - } - } - } - - void SSUSession::SendPeerTest (uint32_t nonce, const boost::asio::ip::address& address, uint16_t port, - const uint8_t * introKey, bool toAddress, bool sendAddress) - // toAddress is true for Alice<->Chalie communications only - // sendAddress is false if message comes from Alice - { - uint8_t buf[80 + 18] = {0}; - uint8_t iv[16]; - uint8_t * payload = buf + sizeof (SSUHeader); - htobe32buf (payload, nonce); - payload += 4; // nonce - // address and port - if (sendAddress) - { - if (address.is_v4 ()) - { - *payload = 4; - memcpy (payload + 1, address.to_v4 ().to_bytes ().data (), 4); // our IP V4 - } - else if (address.is_v6 ()) - { - *payload = 16; - memcpy (payload + 1, address.to_v6 ().to_bytes ().data (), 16); // our IP V6 - } - else - *payload = 0; - payload += (payload[0] + 1); - } - else - { - *payload = 0; - payload++; //size - } - htobe16buf (payload, port); - payload += 2; // port - // intro key - if (toAddress) - { - // send our intro key to address instead of its own - auto addr = i2p::context.GetRouterInfo ().GetSSUAddress (); - if (addr) - memcpy (payload, addr->ssu->key, 32); // intro key - else - LogPrint (eLogInfo, "SSU is not supported. Can't send peer test"); - } - else - memcpy (payload, introKey, 32); // intro key - - // send - RAND_bytes (iv, 16); // random iv - if (toAddress) - { - // encrypt message with specified intro key - FillHeaderAndEncrypt (PAYLOAD_TYPE_PEER_TEST, buf, 80, introKey, iv, introKey); - boost::asio::ip::udp::endpoint e (address, port); - m_Server.Send (buf, 80, e); - } - else - { - // encrypt message with session key - FillHeaderAndEncrypt (PAYLOAD_TYPE_PEER_TEST, buf, 80); - Send (buf, 80); - } - } - - void SSUSession::SendPeerTest () - { - // we are Alice - LogPrint (eLogDebug, "SSU: sending peer test"); - auto address = i2p::context.GetRouterInfo ().GetSSUAddress (i2p::context.SupportsV4 ()); - if (!address) - { - LogPrint (eLogInfo, "SSU is not supported. Can't send peer test"); - return; - } - uint32_t nonce; - RAND_bytes ((uint8_t *)&nonce, 4); - if (!nonce) nonce = 1; - m_IsPeerTest = false; - m_Server.NewPeerTest (nonce, ePeerTestParticipantAlice1, shared_from_this ()); - SendPeerTest (nonce, boost::asio::ip::address(), 0, address->ssu->key, false, false); // address and port always zero for Alice - } - - void SSUSession::SendKeepAlive () - { - if (m_State == eSessionStateEstablished) - { - uint8_t buf[48 + 18] = {0}; - uint8_t * payload = buf + sizeof (SSUHeader); - *payload = 0; // flags - payload++; - *payload = 0; // num fragments - // encrypt message with session key - FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, 48); - Send (buf, 48); - LogPrint (eLogDebug, "SSU: keep-alive sent"); - m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); - } - } - - void SSUSession::SendSessionDestroyed () - { - if (m_IsSessionKey) - { - uint8_t buf[48 + 18] = {0}; - // encrypt message with session key - FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_DESTROYED, buf, 48); - try - { - Send (buf, 48); - } - catch (std::exception& ex) - { - LogPrint (eLogWarning, "SSU: exception while sending session destoroyed: ", ex.what ()); - } - LogPrint (eLogDebug, "SSU: session destroyed sent"); - } - } - - void SSUSession::Send (uint8_t type, const uint8_t * payload, size_t len) - { - uint8_t buf[SSU_MTU_V4 + 18] = {0}; - size_t msgSize = len + sizeof (SSUHeader); - size_t paddingSize = msgSize & 0x0F; // %16 - if (paddingSize > 0) msgSize += (16 - paddingSize); - if (msgSize > SSU_MTU_V4) - { - LogPrint (eLogWarning, "SSU: payload size ", msgSize, " exceeds MTU"); - return; - } - memcpy (buf + sizeof (SSUHeader), payload, len); - // encrypt message with session key - FillHeaderAndEncrypt (type, buf, msgSize); - Send (buf, msgSize); - } - - void SSUSession::Send (const uint8_t * buf, size_t size) - { - m_NumSentBytes += size; - i2p::transport::transports.UpdateSentBytes (size); - m_Server.Send (buf, size, m_RemoteEndpoint); - } -} -} - diff --git a/libi2pd/SSUSession.h b/libi2pd/SSUSession.h deleted file mode 100644 index 8f81838a..00000000 --- a/libi2pd/SSUSession.h +++ /dev/null @@ -1,167 +0,0 @@ -#ifndef SSU_SESSION_H__ -#define SSU_SESSION_H__ - -#include -#include -#include -#include "Crypto.h" -#include "I2NPProtocol.h" -#include "TransportSession.h" -#include "SSUData.h" - -namespace i2p -{ -namespace transport -{ - const uint8_t SSU_HEADER_EXTENDED_OPTIONS_INCLUDED = 0x04; - struct SSUHeader - { - uint8_t mac[16]; - uint8_t iv[16]; - uint8_t flag; - uint8_t time[4]; - - uint8_t GetPayloadType () const { return flag >> 4; }; - bool IsExtendedOptions () const { return flag & SSU_HEADER_EXTENDED_OPTIONS_INCLUDED; }; - }; - - const int SSU_CONNECT_TIMEOUT = 5; // 5 seconds - const int SSU_TERMINATION_TIMEOUT = 330; // 5.5 minutes - const int SSU_CLOCK_SKEW = 60; // in seconds - const size_t SSU_MAX_I2NP_MESSAGE_SIZE = 32768; - - // payload types (4 bits) - const uint8_t PAYLOAD_TYPE_SESSION_REQUEST = 0; - const uint8_t PAYLOAD_TYPE_SESSION_CREATED = 1; - const uint8_t PAYLOAD_TYPE_SESSION_CONFIRMED = 2; - const uint8_t PAYLOAD_TYPE_RELAY_REQUEST = 3; - const uint8_t PAYLOAD_TYPE_RELAY_RESPONSE = 4; - const uint8_t PAYLOAD_TYPE_RELAY_INTRO = 5; - const uint8_t PAYLOAD_TYPE_DATA = 6; - const uint8_t PAYLOAD_TYPE_PEER_TEST = 7; - const uint8_t PAYLOAD_TYPE_SESSION_DESTROYED = 8; - - // extended options - const uint16_t EXTENDED_OPTIONS_FLAG_REQUEST_RELAY_TAG = 0x0001; - - enum SessionState - { - eSessionStateUnknown, - eSessionStateIntroduced, - eSessionStateEstablished, - eSessionStateClosed, - eSessionStateFailed - }; - - enum PeerTestParticipant - { - ePeerTestParticipantUnknown = 0, - ePeerTestParticipantAlice1, - ePeerTestParticipantAlice2, - ePeerTestParticipantBob, - ePeerTestParticipantCharlie - }; - - class SSUServer; - class SSUSession: public TransportSession, public std::enable_shared_from_this - { - public: - - SSUSession (SSUServer& server, boost::asio::ip::udp::endpoint& remoteEndpoint, - std::shared_ptr router = nullptr, bool peerTest = false); - void ProcessNextMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); - ~SSUSession (); - - void Connect (); - void WaitForConnect (); - void Introduce (const i2p::data::RouterInfo::Introducer& introducer, - std::shared_ptr to); // Alice to Charlie - void WaitForIntroduction (); - void Close (); - void Done (); - void Failed (); - const boost::asio::ip::udp::endpoint& GetRemoteEndpoint () { return m_RemoteEndpoint; }; - - bool IsV6 () const { return m_RemoteEndpoint.address ().is_v6 (); }; - void SendI2NPMessages (const std::vector >& msgs); - void SendPeerTest (); // Alice - - SessionState GetState () const { return m_State; }; - size_t GetNumSentBytes () const { return m_NumSentBytes; }; - size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; }; - - void SendKeepAlive (); - uint32_t GetRelayTag () const { return m_RelayTag; }; - const i2p::data::RouterInfo::IntroKey& GetIntroKey () const { return m_IntroKey; }; - uint32_t GetCreationTime () const { return m_CreationTime; }; - - void FlushData (); - - private: - - boost::asio::io_service& GetService (); - void CreateAESandMacKey (const uint8_t * pubKey); - size_t GetSSUHeaderSize (const uint8_t * buf) const; - void PostI2NPMessages (std::vector > msgs); - void ProcessMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); // call for established session - void ProcessSessionRequest (const uint8_t * buf, size_t len); - void SendSessionRequest (); - void SendRelayRequest (const i2p::data::RouterInfo::Introducer& introducer, uint32_t nonce); - void ProcessSessionCreated (uint8_t * buf, size_t len); - void SendSessionCreated (const uint8_t * x, bool sendRelayTag = true); - void ProcessSessionConfirmed (const uint8_t * buf, size_t len); - void SendSessionConfirmed (const uint8_t * y, const uint8_t * ourAddress, size_t ourAddressLen); - void ProcessRelayRequest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& from); - void SendRelayResponse (uint32_t nonce, const boost::asio::ip::udp::endpoint& from, - const uint8_t * introKey, const boost::asio::ip::udp::endpoint& to); - void SendRelayIntro (std::shared_ptr session, const boost::asio::ip::udp::endpoint& from); - void ProcessRelayResponse (const uint8_t * buf, size_t len); - void ProcessRelayIntro (const uint8_t * buf, size_t len); - void Established (); - void ScheduleConnectTimer (); - void HandleConnectTimer (const boost::system::error_code& ecode); - void ProcessPeerTest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); - void SendPeerTest (uint32_t nonce, const boost::asio::ip::address& address, uint16_t port, const uint8_t * introKey, bool toAddress = true, bool sendAddress = true); - void ProcessData (uint8_t * buf, size_t len); - void SendSessionDestroyed (); - void Send (uint8_t type, const uint8_t * payload, size_t len); // with session key - void Send (const uint8_t * buf, size_t size); - - void FillHeaderAndEncrypt (uint8_t payloadType, uint8_t * buf, size_t len, const i2p::crypto::AESKey& aesKey, - const uint8_t * iv, const i2p::crypto::MACKey& macKey, uint8_t flag = 0); - void FillHeaderAndEncrypt (uint8_t payloadType, uint8_t * buf, size_t len); // with session key - void Decrypt (uint8_t * buf, size_t len, const i2p::crypto::AESKey& aesKey); - void DecryptSessionKey (uint8_t * buf, size_t len); - bool Validate (uint8_t * buf, size_t len, const i2p::crypto::MACKey& macKey); - - void Reset (); - - private: - - friend class SSUData; // TODO: change in later - SSUServer& m_Server; - const boost::asio::ip::udp::endpoint m_RemoteEndpoint; - boost::asio::deadline_timer m_ConnectTimer; - bool m_IsPeerTest; - SessionState m_State; - bool m_IsSessionKey; - uint32_t m_RelayTag; // received from peer - uint32_t m_SentRelayTag; // sent by us - i2p::crypto::CBCEncryption m_SessionKeyEncryption; - i2p::crypto::CBCDecryption m_SessionKeyDecryption; - i2p::crypto::AESKey m_SessionKey; - i2p::crypto::MACKey m_MacKey; - i2p::data::RouterInfo::IntroKey m_IntroKey; - uint32_t m_CreationTime; // seconds since epoch - SSUData m_Data; - bool m_IsDataReceived; - std::unique_ptr m_SignedData; // we need it for SessionConfirmed only - std::map > m_RelayRequests; // nonce->Charlie - }; - - -} -} - -#endif - diff --git a/libi2pd/Signature.cpp b/libi2pd/Signature.cpp index 21d08f30..3e4b451b 100644 --- a/libi2pd/Signature.cpp +++ b/libi2pd/Signature.cpp @@ -1,4 +1,16 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include +#include +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 +#include +#endif #include "Log.h" #include "Signature.h" @@ -6,38 +18,203 @@ namespace i2p { namespace crypto { -#if OPENSSL_EDDSA +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + DSAVerifier::DSAVerifier (): + m_PublicKey (nullptr) + { + } + + DSAVerifier::~DSAVerifier () + { + if (m_PublicKey) + EVP_PKEY_free (m_PublicKey); + } + + void DSAVerifier::SetPublicKey (const uint8_t * signingKey) + { + if (m_PublicKey) + EVP_PKEY_free (m_PublicKey); + BIGNUM * pub = BN_bin2bn (signingKey, DSA_PUBLIC_KEY_LENGTH, NULL); + m_PublicKey = CreateDSA (pub); + BN_free (pub); + } + + bool DSAVerifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const + { + // calculate SHA1 digest + uint8_t digest[20], sign[48]; + SHA1 (buf, len, digest); + // signature + DSA_SIG * sig = DSA_SIG_new(); + DSA_SIG_set0 (sig, BN_bin2bn (signature, DSA_SIGNATURE_LENGTH/2, NULL), BN_bin2bn (signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2, NULL)); + // to DER format + uint8_t * s = sign; + auto l = i2d_DSA_SIG (sig, &s); + DSA_SIG_free(sig); + // verify + auto ctx = EVP_PKEY_CTX_new (m_PublicKey, NULL); + EVP_PKEY_verify_init(ctx); + EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha1()); + bool ret = EVP_PKEY_verify(ctx, sign, l, digest, 20); + EVP_PKEY_CTX_free(ctx); + return ret; + } + + DSASigner::DSASigner (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey) + { + BIGNUM * priv = BN_bin2bn (signingPrivateKey, DSA_PRIVATE_KEY_LENGTH, NULL); + m_PrivateKey = CreateDSA (nullptr, priv); + BN_free (priv); + } + + DSASigner::~DSASigner () + { + if (m_PrivateKey) + EVP_PKEY_free (m_PrivateKey); + } + + void DSASigner::Sign (const uint8_t * buf, int len, uint8_t * signature) const + { + uint8_t digest[20], sign[48]; + SHA1 (buf, len, digest); + auto ctx = EVP_PKEY_CTX_new (m_PrivateKey, NULL); + EVP_PKEY_sign_init(ctx); + EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha1()); + size_t l = 48; + EVP_PKEY_sign(ctx, sign, &l, digest, 20); + const uint8_t * s1 = sign; + DSA_SIG * sig = d2i_DSA_SIG (NULL, &s1, l); + const BIGNUM * r, * s; + DSA_SIG_get0 (sig, &r, &s); + bn2buf (r, signature, DSA_SIGNATURE_LENGTH/2); + bn2buf (s, signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2); + DSA_SIG_free(sig); + EVP_PKEY_CTX_free(ctx); + } + + void CreateDSARandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey) + { + EVP_PKEY * paramskey = CreateDSA(); + EVP_PKEY_CTX * ctx = EVP_PKEY_CTX_new_from_pkey(NULL, paramskey, NULL); + EVP_PKEY_keygen_init(ctx); + EVP_PKEY * pkey = nullptr; + EVP_PKEY_keygen(ctx, &pkey); + BIGNUM * pub = NULL, * priv = NULL; + EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_PUB_KEY, &pub); + bn2buf (pub, signingPublicKey, DSA_PUBLIC_KEY_LENGTH); + EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_PRIV_KEY, &priv); + bn2buf (priv, signingPrivateKey, DSA_PRIVATE_KEY_LENGTH); + BN_free (pub); BN_free (priv); + EVP_PKEY_free (pkey); + EVP_PKEY_free (paramskey); + EVP_PKEY_CTX_free (ctx); + } +#else + + DSAVerifier::DSAVerifier () + { + m_PublicKey = CreateDSA (); + } + + DSAVerifier::~DSAVerifier () + { + DSA_free (m_PublicKey); + } + + void DSAVerifier::SetPublicKey (const uint8_t * signingKey) + { + DSA_set0_key (m_PublicKey, BN_bin2bn (signingKey, DSA_PUBLIC_KEY_LENGTH, NULL), NULL); + } + + bool DSAVerifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const + { + // calculate SHA1 digest + uint8_t digest[20]; + SHA1 (buf, len, digest); + // signature + DSA_SIG * sig = DSA_SIG_new(); + DSA_SIG_set0 (sig, BN_bin2bn (signature, DSA_SIGNATURE_LENGTH/2, NULL), BN_bin2bn (signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2, NULL)); + // DSA verification + int ret = DSA_do_verify (digest, 20, sig, m_PublicKey); + DSA_SIG_free(sig); + return ret; + } + + DSASigner::DSASigner (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey) + { + m_PrivateKey = CreateDSA (); + DSA_set0_key (m_PrivateKey, BN_bin2bn (signingPublicKey, DSA_PUBLIC_KEY_LENGTH, NULL), BN_bin2bn (signingPrivateKey, DSA_PRIVATE_KEY_LENGTH, NULL)); + } + + DSASigner::~DSASigner () + { + DSA_free (m_PrivateKey); + } + + void DSASigner::Sign (const uint8_t * buf, int len, uint8_t * signature) const + { + uint8_t digest[20]; + SHA1 (buf, len, digest); + DSA_SIG * sig = DSA_do_sign (digest, 20, m_PrivateKey); + const BIGNUM * r, * s; + DSA_SIG_get0 (sig, &r, &s); + bn2buf (r, signature, DSA_SIGNATURE_LENGTH/2); + bn2buf (s, signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2); + DSA_SIG_free(sig); + } + + void CreateDSARandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey) + { + DSA * dsa = CreateDSA (); + DSA_generate_key (dsa); + const BIGNUM * pub_key, * priv_key; + DSA_get0_key(dsa, &pub_key, &priv_key); + bn2buf (priv_key, signingPrivateKey, DSA_PRIVATE_KEY_LENGTH); + bn2buf (pub_key, signingPublicKey, DSA_PUBLIC_KEY_LENGTH); + DSA_free (dsa); + } +#endif + +#if OPENSSL_EDDSA EDDSA25519Verifier::EDDSA25519Verifier (): m_Pkey (nullptr) { - m_MDCtx = EVP_MD_CTX_create (); } EDDSA25519Verifier::~EDDSA25519Verifier () { - EVP_MD_CTX_destroy (m_MDCtx); - if (m_Pkey) EVP_PKEY_free (m_Pkey); + EVP_PKEY_free (m_Pkey); } void EDDSA25519Verifier::SetPublicKey (const uint8_t * signingKey) { + if (m_Pkey) EVP_PKEY_free (m_Pkey); m_Pkey = EVP_PKEY_new_raw_public_key (EVP_PKEY_ED25519, NULL, signingKey, 32); - EVP_DigestVerifyInit (m_MDCtx, NULL, NULL, NULL, m_Pkey); - } - + } + bool EDDSA25519Verifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const { - return EVP_DigestVerify (m_MDCtx, signature, 64, buf, len); + if (m_Pkey) + { + EVP_MD_CTX * ctx = EVP_MD_CTX_create (); + EVP_DigestVerifyInit (ctx, NULL, NULL, NULL, m_Pkey); + auto ret = EVP_DigestVerify (ctx, signature, 64, buf, len); + EVP_MD_CTX_destroy (ctx); + return ret; + } + else + LogPrint (eLogError, "EdDSA verification key is not set"); + return false; } - -#else + +#else EDDSA25519Verifier::EDDSA25519Verifier () { } EDDSA25519Verifier::~EDDSA25519Verifier () { - } + } void EDDSA25519Verifier::SetPublicKey (const uint8_t * signingKey) { @@ -45,8 +222,8 @@ namespace crypto BN_CTX * ctx = BN_CTX_new (); m_PublicKey = GetEd25519 ()->DecodePublicKey (m_PublicKeyEncoded, ctx); BN_CTX_free (ctx); - } - + } + bool EDDSA25519Verifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const { uint8_t digest[64]; @@ -83,57 +260,228 @@ namespace crypto EDDSA25519SignerCompat::~EDDSA25519SignerCompat () { - } - + } + void EDDSA25519SignerCompat::Sign (const uint8_t * buf, int len, uint8_t * signature) const { GetEd25519 ()->Sign (m_ExpandedPrivateKey, m_PublicKeyEncoded, buf, len, signature); } - -#if OPENSSL_EDDSA + +#if OPENSSL_EDDSA EDDSA25519Signer::EDDSA25519Signer (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey): - m_Fallback (nullptr) - { + m_Pkey (nullptr), m_Fallback (nullptr) + { m_Pkey = EVP_PKEY_new_raw_private_key (EVP_PKEY_ED25519, NULL, signingPrivateKey, 32); - uint8_t publicKey[EDDSA25519_PUBLIC_KEY_LENGTH]; + uint8_t publicKey[EDDSA25519_PUBLIC_KEY_LENGTH]; size_t len = EDDSA25519_PUBLIC_KEY_LENGTH; EVP_PKEY_get_raw_public_key (m_Pkey, publicKey, &len); if (signingPublicKey && memcmp (publicKey, signingPublicKey, EDDSA25519_PUBLIC_KEY_LENGTH)) { LogPrint (eLogWarning, "EdDSA public key mismatch. Fallback"); - EVP_PKEY_free (m_Pkey); m_Fallback = new EDDSA25519SignerCompat (signingPrivateKey, signingPublicKey); + EVP_PKEY_free (m_Pkey); + m_Pkey = nullptr; } - else - { - m_MDCtx = EVP_MD_CTX_create (); - EVP_DigestSignInit (m_MDCtx, NULL, NULL, NULL, m_Pkey); - } } EDDSA25519Signer::~EDDSA25519Signer () { if (m_Fallback) delete m_Fallback; - else - { - EVP_MD_CTX_destroy (m_MDCtx); - EVP_PKEY_free (m_Pkey); - } + if (m_Pkey) EVP_PKEY_free (m_Pkey); } void EDDSA25519Signer::Sign (const uint8_t * buf, int len, uint8_t * signature) const { - if (m_Fallback) return m_Fallback->Sign (buf, len, signature); - else - { - size_t l = 64; - uint8_t sig[64]; // temporary buffer for signature. openssl issue #7232 - EVP_DigestSign (m_MDCtx, sig, &l, buf, len); + if (m_Fallback) + return m_Fallback->Sign (buf, len, signature); + else if (m_Pkey) + { + + EVP_MD_CTX * ctx = EVP_MD_CTX_create (); + size_t l = 64; + uint8_t sig[64]; // temporary buffer for signature. openssl issue #7232 + EVP_DigestSignInit (ctx, NULL, NULL, NULL, m_Pkey); + if (!EVP_DigestSign (ctx, sig, &l, buf, len)) + LogPrint (eLogError, "EdDSA signing failed"); memcpy (signature, sig, 64); + EVP_MD_CTX_destroy (ctx); + } + else + LogPrint (eLogError, "EdDSA signing key is not set"); + } +#endif + +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) + static const OSSL_PARAM EDDSA25519phParams[] = + { + OSSL_PARAM_utf8_string ("instance", (char *)"Ed25519ph", 9), + OSSL_PARAM_END + }; + + bool EDDSA25519phVerifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const + { + auto pkey = GetPkey (); + if (pkey) + { + uint8_t digest[64]; + SHA512 (buf, len, digest); + EVP_MD_CTX * ctx = EVP_MD_CTX_create (); + EVP_DigestVerifyInit_ex (ctx, NULL, NULL, NULL, NULL, pkey, EDDSA25519phParams); + auto ret = EVP_DigestVerify (ctx, signature, 64, digest, 64); + EVP_MD_CTX_destroy (ctx); + return ret; } + else + LogPrint (eLogError, "EdDSA verification key is not set"); + return false; + } + + EDDSA25519phSigner::EDDSA25519phSigner (const uint8_t * signingPrivateKey): + EDDSA25519Signer (signingPrivateKey) + { + } + + void EDDSA25519phSigner::Sign (const uint8_t * buf, int len, uint8_t * signature) const + { + auto pkey = GetPkey (); + if (pkey) + { + uint8_t digest[64]; + SHA512 (buf, len, digest); + EVP_MD_CTX * ctx = EVP_MD_CTX_create (); + size_t l = 64; + uint8_t sig[64]; + EVP_DigestSignInit_ex (ctx, NULL, NULL, NULL, NULL, pkey, EDDSA25519phParams); + if (!EVP_DigestSign (ctx, sig, &l, digest, 64)) + LogPrint (eLogError, "EdDSA signing failed"); + memcpy (signature, sig, 64); + EVP_MD_CTX_destroy (ctx); + } + else + LogPrint (eLogError, "EdDSA signing key is not set"); } #endif + +#if OPENSSL_PQ + + MLDSA44Verifier::MLDSA44Verifier (): + m_Pkey (nullptr) + { + } + + MLDSA44Verifier::~MLDSA44Verifier () + { + EVP_PKEY_free (m_Pkey); + } + + void MLDSA44Verifier::SetPublicKey (const uint8_t * signingKey) + { + if (m_Pkey) + { + EVP_PKEY_free (m_Pkey); + m_Pkey = nullptr; + } + OSSL_PARAM params[] = + { + OSSL_PARAM_octet_string (OSSL_PKEY_PARAM_PUB_KEY, (uint8_t *)signingKey, GetPublicKeyLen ()), + OSSL_PARAM_END + }; + EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, "ML-DSA-44", NULL); + if (ctx) + { + EVP_PKEY_fromdata_init (ctx); + EVP_PKEY_fromdata (ctx, &m_Pkey, OSSL_KEYMGMT_SELECT_PUBLIC_KEY, params); + EVP_PKEY_CTX_free (ctx); + } + else + LogPrint (eLogError, "MLDSA44 can't create PKEY context"); + } + + bool MLDSA44Verifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const + { + bool ret = false; + if (m_Pkey) + { + EVP_PKEY_CTX * vctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL); + if (vctx) + { + EVP_SIGNATURE * sig = EVP_SIGNATURE_fetch (NULL, "ML-DSA-44", NULL); + if (sig) + { + int encode = 1; + OSSL_PARAM params[] = + { + OSSL_PARAM_int(OSSL_SIGNATURE_PARAM_MESSAGE_ENCODING, &encode), + OSSL_PARAM_END + }; + EVP_PKEY_verify_message_init (vctx, sig, params); + ret = EVP_PKEY_verify (vctx, signature, GetSignatureLen (), buf, len); + EVP_SIGNATURE_free (sig); + } + EVP_PKEY_CTX_free (vctx); + } + else + LogPrint (eLogError, "MLDSA44 can't obtain context from PKEY"); + } + else + LogPrint (eLogError, "MLDSA44 verification key is not set"); + return ret; + } + + MLDSA44Signer::MLDSA44Signer (const uint8_t * signingPrivateKey): + m_Pkey (nullptr) + { + OSSL_PARAM params[] = + { + OSSL_PARAM_octet_string (OSSL_PKEY_PARAM_PRIV_KEY, (uint8_t *)signingPrivateKey, MLDSA44_PRIVATE_KEY_LENGTH), + OSSL_PARAM_END + }; + EVP_PKEY_CTX *ctx = EVP_PKEY_CTX_new_from_name (NULL, "ML-DSA-44", NULL); + if (ctx) + { + EVP_PKEY_fromdata_init (ctx); + EVP_PKEY_fromdata (ctx, &m_Pkey, OSSL_KEYMGMT_SELECT_PRIVATE_KEY, params); + EVP_PKEY_CTX_free (ctx); + } + else + LogPrint (eLogError, "MLDSA44 can't create PKEY context"); + } + + MLDSA44Signer::~MLDSA44Signer () + { + if (m_Pkey) EVP_PKEY_free (m_Pkey); + } + + void MLDSA44Signer::Sign (const uint8_t * buf, int len, uint8_t * signature) const + { + if (m_Pkey) + { + EVP_PKEY_CTX * sctx = EVP_PKEY_CTX_new_from_pkey (NULL, m_Pkey, NULL); + if (sctx) + { + EVP_SIGNATURE * sig = EVP_SIGNATURE_fetch (NULL, "ML-DSA-44", NULL); + if (sig) + { + int encode = 1; + OSSL_PARAM params[] = + { + OSSL_PARAM_int(OSSL_SIGNATURE_PARAM_MESSAGE_ENCODING, &encode), + OSSL_PARAM_END + }; + EVP_PKEY_sign_message_init (sctx, sig, params); + size_t siglen = MLDSA44_SIGNATURE_LENGTH; + EVP_PKEY_sign (sctx, signature, &siglen, buf, len); + EVP_SIGNATURE_free (sig); + } + EVP_PKEY_CTX_free (sctx); + } + else + LogPrint (eLogError, "MLDSA44 can't obtain context from PKEY"); + } + else + LogPrint (eLogError, "MLDSA44 signing key is not set"); + } + +#endif } } - - diff --git a/libi2pd/Signature.h b/libi2pd/Signature.h index 0c5f27d6..20c7e11b 100644 --- a/libi2pd/Signature.h +++ b/libi2pd/Signature.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef SIGNATURE_H__ #define SIGNATURE_H__ @@ -35,94 +43,55 @@ namespace crypto virtual void Sign (const uint8_t * buf, int len, uint8_t * signature) const = 0; }; + // DSA const size_t DSA_PUBLIC_KEY_LENGTH = 128; const size_t DSA_SIGNATURE_LENGTH = 40; const size_t DSA_PRIVATE_KEY_LENGTH = DSA_SIGNATURE_LENGTH/2; class DSAVerifier: public Verifier { public: - - DSAVerifier () - { - m_PublicKey = CreateDSA (); - } - void SetPublicKey (const uint8_t * signingKey) - { - DSA_set0_key (m_PublicKey, BN_bin2bn (signingKey, DSA_PUBLIC_KEY_LENGTH, NULL), NULL); - } - - ~DSAVerifier () - { - DSA_free (m_PublicKey); - } - - bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const - { - // calculate SHA1 digest - uint8_t digest[20]; - SHA1 (buf, len, digest); - // signature - DSA_SIG * sig = DSA_SIG_new(); - DSA_SIG_set0 (sig, BN_bin2bn (signature, DSA_SIGNATURE_LENGTH/2, NULL), BN_bin2bn (signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2, NULL)); - // DSA verification - int ret = DSA_do_verify (digest, 20, sig, m_PublicKey); - DSA_SIG_free(sig); - return ret; - } - - size_t GetPublicKeyLen () const { return DSA_PUBLIC_KEY_LENGTH; }; - size_t GetSignatureLen () const { return DSA_SIGNATURE_LENGTH; }; + DSAVerifier (); + ~DSAVerifier (); + // implements Verifier + void SetPublicKey (const uint8_t * signingKey) override; + bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const override; + size_t GetPublicKeyLen () const override { return DSA_PUBLIC_KEY_LENGTH; }; + size_t GetSignatureLen () const override { return DSA_SIGNATURE_LENGTH; }; + private: +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + EVP_PKEY * m_PublicKey; +#else DSA * m_PublicKey; +#endif }; class DSASigner: public Signer { public: - DSASigner (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey) + DSASigner (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey); // openssl 1.1 always requires DSA public key even for signing - { - m_PrivateKey = CreateDSA (); - DSA_set0_key (m_PrivateKey, BN_bin2bn (signingPublicKey, DSA_PUBLIC_KEY_LENGTH, NULL), BN_bin2bn (signingPrivateKey, DSA_PRIVATE_KEY_LENGTH, NULL)); - } + ~DSASigner (); - ~DSASigner () - { - DSA_free (m_PrivateKey); - } - - void Sign (const uint8_t * buf, int len, uint8_t * signature) const - { - uint8_t digest[20]; - SHA1 (buf, len, digest); - DSA_SIG * sig = DSA_do_sign (digest, 20, m_PrivateKey); - const BIGNUM * r, * s; - DSA_SIG_get0 (sig, &r, &s); - bn2buf (r, signature, DSA_SIGNATURE_LENGTH/2); - bn2buf (s, signature + DSA_SIGNATURE_LENGTH/2, DSA_SIGNATURE_LENGTH/2); - DSA_SIG_free(sig); - } + // implements Signer + void Sign (const uint8_t * buf, int len, uint8_t * signature) const override; private: +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + EVP_PKEY * m_PrivateKey; +#else DSA * m_PrivateKey; +#endif }; - inline void CreateDSARandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey) - { - DSA * dsa = CreateDSA (); - DSA_generate_key (dsa); - const BIGNUM * pub_key, * priv_key; - DSA_get0_key(dsa, &pub_key, &priv_key); - bn2buf (priv_key, signingPrivateKey, DSA_PRIVATE_KEY_LENGTH); - bn2buf (pub_key, signingPublicKey, DSA_PUBLIC_KEY_LENGTH); - DSA_free (dsa); - } + void CreateDSARandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey); + // ECDSA struct SHA256Hash { static void CalculateHash (const uint8_t * buf, size_t len, uint8_t * digest) @@ -153,7 +122,6 @@ namespace crypto enum { hashLen = 64 }; }; - // EcDSA template class ECDSAVerifier: public Verifier { @@ -163,9 +131,9 @@ namespace crypto { m_PublicKey = EC_KEY_new_by_curve_name (curve); } - + void SetPublicKey (const uint8_t * signingKey) - { + { BIGNUM * x = BN_bin2bn (signingKey, keyLen/2, NULL); BIGNUM * y = BN_bin2bn (signingKey + keyLen/2, keyLen/2, NULL); EC_KEY_set_public_key_affine_coordinates (m_PublicKey, x, y); @@ -287,7 +255,7 @@ namespace crypto EDDSA25519Verifier (); void SetPublicKey (const uint8_t * signingKey); ~EDDSA25519Verifier (); - + bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const; size_t GetPublicKeyLen () const { return EDDSA25519_PUBLIC_KEY_LENGTH; }; @@ -295,15 +263,28 @@ namespace crypto private: -#if OPENSSL_EDDSA +#if OPENSSL_EDDSA + EVP_PKEY * m_Pkey; - EVP_MD_CTX * m_MDCtx; -#else + + protected: + + EVP_PKEY * GetPkey () const { return m_Pkey; }; +#else EDDSAPoint m_PublicKey; uint8_t m_PublicKeyEncoded[EDDSA25519_PUBLIC_KEY_LENGTH]; -#endif +#endif }; +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + class EDDSA25519phVerifier: public EDDSA25519Verifier + { + public: + + bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const; + }; +#endif + class EDDSA25519SignerCompat: public Signer { public: @@ -311,17 +292,17 @@ namespace crypto EDDSA25519SignerCompat (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey = nullptr); // we pass signingPublicKey to check if it matches private key ~EDDSA25519SignerCompat (); - + void Sign (const uint8_t * buf, int len, uint8_t * signature) const; const uint8_t * GetPublicKey () const { return m_PublicKeyEncoded; }; // for keys creation private: - + uint8_t m_ExpandedPrivateKey[64]; uint8_t m_PublicKeyEncoded[EDDSA25519_PUBLIC_KEY_LENGTH]; }; -#if OPENSSL_EDDSA +#if OPENSSL_EDDSA class EDDSA25519Signer: public Signer { public: @@ -329,23 +310,39 @@ namespace crypto EDDSA25519Signer (const uint8_t * signingPrivateKey, const uint8_t * signingPublicKey = nullptr); // we pass signingPublicKey to check if it matches private key ~EDDSA25519Signer (); - + void Sign (const uint8_t * buf, int len, uint8_t * signature) const; + protected: + + EVP_PKEY * GetPkey () const { return m_Pkey; }; + private: + EVP_PKEY * m_Pkey; - EVP_MD_CTX * m_MDCtx; EDDSA25519SignerCompat * m_Fallback; }; #else typedef EDDSA25519SignerCompat EDDSA25519Signer; + +#endif + +#if (OPENSSL_VERSION_NUMBER >= 0x030000000) // since 3.0.0 + class EDDSA25519phSigner: public EDDSA25519Signer + { + public: + + EDDSA25519phSigner (const uint8_t * signingPrivateKey); + + void Sign (const uint8_t * buf, int len, uint8_t * signature) const; + }; #endif inline void CreateEDDSA25519RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey) { -#if OPENSSL_EDDSA +#if OPENSSL_EDDSA EVP_PKEY *pkey = NULL; EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id (EVP_PKEY_ED25519, NULL); EVP_PKEY_keygen_init (pctx); @@ -355,12 +352,12 @@ namespace crypto EVP_PKEY_get_raw_public_key (pkey, signingPublicKey, &len); len = EDDSA25519_PRIVATE_KEY_LENGTH; EVP_PKEY_get_raw_private_key (pkey, signingPrivateKey, &len); - EVP_PKEY_free (pkey); -#else + EVP_PKEY_free (pkey); +#else RAND_bytes (signingPrivateKey, EDDSA25519_PRIVATE_KEY_LENGTH); EDDSA25519Signer signer (signingPrivateKey); memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH); -#endif +#endif } @@ -399,18 +396,18 @@ namespace crypto GOSTR3410Verifier (GOSTR3410ParamSet paramSet): m_ParamSet (paramSet), m_PublicKey (nullptr) { - } + } - void SetPublicKey (const uint8_t * signingKey) + void SetPublicKey (const uint8_t * signingKey) { BIGNUM * x = BN_bin2bn (signingKey, GetPublicKeyLen ()/2, NULL); BIGNUM * y = BN_bin2bn (signingKey + GetPublicKeyLen ()/2, GetPublicKeyLen ()/2, NULL); m_PublicKey = GetGOSTR3410Curve (m_ParamSet)->CreatePoint (x, y); BN_free (x); BN_free (y); } - ~GOSTR3410Verifier () - { - if (m_PublicKey) EC_POINT_free (m_PublicKey); + ~GOSTR3410Verifier () + { + if (m_PublicKey) EC_POINT_free (m_PublicKey); } bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const @@ -501,18 +498,18 @@ namespace crypto auto publicKey = GetEd25519 ()->GeneratePublicKey (m_PrivateKey, ctx); GetEd25519 ()->EncodePublicKey (publicKey, m_PublicKeyEncoded, ctx); BN_CTX_free (ctx); - } + } ~RedDSA25519Signer () {}; - + void Sign (const uint8_t * buf, int len, uint8_t * signature) const { - GetEd25519 ()->SignRedDSA (m_PrivateKey, m_PublicKeyEncoded, buf, len, signature); + GetEd25519 ()->SignRedDSA (m_PrivateKey, m_PublicKeyEncoded, buf, len, signature); } - + const uint8_t * GetPublicKey () const { return m_PublicKeyEncoded; }; // for keys creation private: - + uint8_t m_PrivateKey[EDDSA25519_PRIVATE_KEY_LENGTH]; uint8_t m_PublicKeyEncoded[EDDSA25519_PUBLIC_KEY_LENGTH]; }; @@ -521,10 +518,60 @@ namespace crypto { GetEd25519 ()->CreateRedDSAPrivateKey (signingPrivateKey); RedDSA25519Signer signer (signingPrivateKey); - memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH); + memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH); } + +#if OPENSSL_PQ +#include + + // Post-Quantum + const size_t MLDSA44_PUBLIC_KEY_LENGTH = 1312; + const size_t MLDSA44_SIGNATURE_LENGTH = 2420; + const size_t MLDSA44_PRIVATE_KEY_LENGTH = 2560; + class MLDSA44Verifier: public Verifier + { + public: + + MLDSA44Verifier (); + void SetPublicKey (const uint8_t * signingKey); + ~MLDSA44Verifier (); + + bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const; + + size_t GetPublicKeyLen () const { return MLDSA44_PUBLIC_KEY_LENGTH; }; + size_t GetSignatureLen () const { return MLDSA44_SIGNATURE_LENGTH; }; + size_t GetPrivateKeyLen () const { return MLDSA44_PRIVATE_KEY_LENGTH; }; + + private: + + EVP_PKEY * m_Pkey; + }; + + class MLDSA44Signer: public Signer + { + public: + + MLDSA44Signer (const uint8_t * signingPrivateKey); + ~MLDSA44Signer (); + + void Sign (const uint8_t * buf, int len, uint8_t * signature) const; + + private: + + EVP_PKEY * m_Pkey; + }; + + inline void CreateMLDSA44RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey) + { + EVP_PKEY * pkey = EVP_PKEY_Q_keygen (NULL, NULL, "ML-DSA-44"); + size_t len = MLDSA44_PUBLIC_KEY_LENGTH; + EVP_PKEY_get_octet_string_param (pkey, OSSL_PKEY_PARAM_PUB_KEY, signingPublicKey, MLDSA44_PUBLIC_KEY_LENGTH, &len); + len = MLDSA44_PRIVATE_KEY_LENGTH; + EVP_PKEY_get_octet_string_param (pkey, OSSL_PKEY_PARAM_PRIV_KEY, signingPrivateKey, MLDSA44_PRIVATE_KEY_LENGTH, &len); + EVP_PKEY_free (pkey); + } +#endif } } #endif - diff --git a/libi2pd/Siphash.h b/libi2pd/Siphash.h index 70822466..78b22b90 100644 --- a/libi2pd/Siphash.h +++ b/libi2pd/Siphash.h @@ -1,9 +1,9 @@ /** - This code is licensed under the MCGSI Public License - Copyright 2018 Jeff Becker - - Kovri go write your own code - + * This code is licensed under the MCGSI Public License + * Copyright 2018 Jeff Becker + * + * Kovri go write your own code + * */ #ifndef SIPHASH_H #define SIPHASH_H @@ -14,140 +14,140 @@ #if !OPENSSL_SIPHASH namespace i2p { -namespace crypto +namespace crypto { - namespace siphash - { - constexpr int crounds = 2; - constexpr int drounds = 4; + namespace siphash + { + constexpr int crounds = 2; + constexpr int drounds = 4; - inline uint64_t rotl(const uint64_t & x, int b) - { - uint64_t ret = x << b; - ret |= x >> (64 - b); - return ret; - } + inline uint64_t rotl(const uint64_t & x, int b) + { + uint64_t ret = x << b; + ret |= x >> (64 - b); + return ret; + } - inline void u32to8le(const uint32_t & v, uint8_t * p) - { - p[0] = (uint8_t) v; - p[1] = (uint8_t) (v >> 8); - p[2] = (uint8_t) (v >> 16); - p[3] = (uint8_t) (v >> 24); - } + inline void u32to8le(const uint32_t & v, uint8_t * p) + { + p[0] = (uint8_t) v; + p[1] = (uint8_t) (v >> 8); + p[2] = (uint8_t) (v >> 16); + p[3] = (uint8_t) (v >> 24); + } - inline void u64to8le(const uint64_t & v, uint8_t * p) - { - p[0] = v & 0xff; - p[1] = (v >> 8) & 0xff; - p[2] = (v >> 16) & 0xff; - p[3] = (v >> 24) & 0xff; - p[4] = (v >> 32) & 0xff; - p[5] = (v >> 40) & 0xff; - p[6] = (v >> 48) & 0xff; - p[7] = (v >> 56) & 0xff; - } + inline void u64to8le(const uint64_t & v, uint8_t * p) + { + p[0] = v & 0xff; + p[1] = (v >> 8) & 0xff; + p[2] = (v >> 16) & 0xff; + p[3] = (v >> 24) & 0xff; + p[4] = (v >> 32) & 0xff; + p[5] = (v >> 40) & 0xff; + p[6] = (v >> 48) & 0xff; + p[7] = (v >> 56) & 0xff; + } - inline uint64_t u8to64le(const uint8_t * p) - { - uint64_t i = 0; - int idx = 0; - while(idx < 8) - { - i |= ((uint64_t) p[idx]) << (idx * 8); - ++idx; - } - return i; - } - - inline void round(uint64_t & _v0, uint64_t & _v1, uint64_t & _v2, uint64_t & _v3) - { - _v0 += _v1; - _v1 = rotl(_v1, 13); - _v1 ^= _v0; - _v0 = rotl(_v0, 32); - _v2 += _v3; - _v3 = rotl(_v3, 16); - _v3 ^= _v2; - _v0 += _v3; - _v3 = rotl(_v3, 21); - _v3 ^= _v0; - _v2 += _v1; - _v1 = rotl(_v1, 17); - _v1 ^= _v2; - _v2 = rotl(_v2, 32); - } - } - - /** hashsz must be 8 or 16 */ - template - inline void Siphash(uint8_t * h, const uint8_t * buf, std::size_t bufsz, const uint8_t * key) - { - uint64_t v0 = 0x736f6d6570736575ULL; - uint64_t v1 = 0x646f72616e646f6dULL; - uint64_t v2 = 0x6c7967656e657261ULL; - uint64_t v3 = 0x7465646279746573ULL; - const uint64_t k0 = siphash::u8to64le(key); - const uint64_t k1 = siphash::u8to64le(key + 8); - uint64_t msg; - int i; - const uint8_t * end = buf + bufsz - (bufsz % sizeof(uint64_t)); - auto left = bufsz & 7; - uint64_t b = ((uint64_t)bufsz) << 56; - v3 ^= k1; - v2 ^= k0; - v1 ^= k1; - v0 ^= k0; + inline uint64_t u8to64le(const uint8_t * p) + { + uint64_t i = 0; + int idx = 0; + while(idx < 8) + { + i |= ((uint64_t) p[idx]) << (idx * 8); + ++idx; + } + return i; + } - if(hashsz == 16) v1 ^= 0xee; + inline void round(uint64_t & _v0, uint64_t & _v1, uint64_t & _v2, uint64_t & _v3) + { + _v0 += _v1; + _v1 = rotl(_v1, 13); + _v1 ^= _v0; + _v0 = rotl(_v0, 32); + _v2 += _v3; + _v3 = rotl(_v3, 16); + _v3 ^= _v2; + _v0 += _v3; + _v3 = rotl(_v3, 21); + _v3 ^= _v0; + _v2 += _v1; + _v1 = rotl(_v1, 17); + _v1 ^= _v2; + _v2 = rotl(_v2, 32); + } + } - while(buf != end) - { - msg = siphash::u8to64le(buf); - v3 ^= msg; - for(i = 0; i < siphash::crounds; ++i) - siphash::round(v0, v1, v2, v3); - - v0 ^= msg; - buf += 8; - } + /** hashsz must be 8 or 16 */ + template + inline void Siphash(uint8_t * h, const uint8_t * buf, std::size_t bufsz, const uint8_t * key) + { + uint64_t v0 = 0x736f6d6570736575ULL; + uint64_t v1 = 0x646f72616e646f6dULL; + uint64_t v2 = 0x6c7967656e657261ULL; + uint64_t v3 = 0x7465646279746573ULL; + const uint64_t k0 = siphash::u8to64le(key); + const uint64_t k1 = siphash::u8to64le(key + 8); + uint64_t msg; + int i; + const uint8_t * end = buf + bufsz - (bufsz % sizeof(uint64_t)); + auto left = bufsz & 7; + uint64_t b = ((uint64_t)bufsz) << 56; + v3 ^= k1; + v2 ^= k0; + v1 ^= k1; + v0 ^= k0; - while(left) - { - --left; - b |= ((uint64_t)(buf[left])) << (left * 8); - } + if(hashsz == 16) v1 ^= 0xee; - v3 ^= b; + while(buf != end) + { + msg = siphash::u8to64le(buf); + v3 ^= msg; + for(i = 0; i < siphash::crounds; ++i) + siphash::round(v0, v1, v2, v3); - for(i = 0; i < siphash::crounds; ++i) - siphash::round(v0, v1, v2, v3); + v0 ^= msg; + buf += 8; + } - v0 ^= b; + while(left) + { + --left; + b |= ((uint64_t)(buf[left])) << (left * 8); + } + + v3 ^= b; + + for(i = 0; i < siphash::crounds; ++i) + siphash::round(v0, v1, v2, v3); + + v0 ^= b; - if(hashsz == 16) - v2 ^= 0xee; - else - v2 ^= 0xff; + if(hashsz == 16) + v2 ^= 0xee; + else + v2 ^= 0xff; - for(i = 0; i < siphash::drounds; ++i) - siphash::round(v0, v1, v2, v3); + for(i = 0; i < siphash::drounds; ++i) + siphash::round(v0, v1, v2, v3); - b = v0 ^ v1 ^ v2 ^ v3; + b = v0 ^ v1 ^ v2 ^ v3; - siphash::u64to8le(b, h); + siphash::u64to8le(b, h); - if(hashsz == 8) return; + if(hashsz == 8) return; - v1 ^= 0xdd; + v1 ^= 0xdd; - for (i = 0; i < siphash::drounds; ++i) - siphash::round(v0, v1, v2, v3); + for (i = 0; i < siphash::drounds; ++i) + siphash::round(v0, v1, v2, v3); - b = v0 ^ v1 ^ v2 ^ v3; - siphash::u64to8le(b, h + 8); - } + b = v0 ^ v1 ^ v2 ^ v3; + siphash::u64to8le(b, h + 8); + } } } #endif diff --git a/libi2pd/Socks5.h b/libi2pd/Socks5.h new file mode 100644 index 00000000..8db8939b --- /dev/null +++ b/libi2pd/Socks5.h @@ -0,0 +1,210 @@ +/* +* Copyright (c) 2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +* +*/ + +#ifndef SOCKS5_H__ +#define SOCKS5_H__ + +#include +#include +#include +#include "I2PEndian.h" + +namespace i2p +{ +namespace transport +{ + // SOCKS5 constants + const uint8_t SOCKS5_VER = 0x05; + const uint8_t SOCKS5_CMD_CONNECT = 0x01; + const uint8_t SOCKS5_CMD_UDP_ASSOCIATE = 0x03; + const uint8_t SOCKS5_ATYP_IPV4 = 0x01; + const uint8_t SOCKS5_ATYP_IPV6 = 0x04; + const uint8_t SOCKS5_ATYP_NAME = 0x03; + const size_t SOCKS5_UDP_IPV4_REQUEST_HEADER_SIZE = 10; + const size_t SOCKS5_UDP_IPV6_REQUEST_HEADER_SIZE = 22; + + const uint8_t SOCKS5_REPLY_SUCCESS = 0x00; + const uint8_t SOCKS5_REPLY_SERVER_FAILURE = 0x01; + const uint8_t SOCKS5_REPLY_CONNECTION_NOT_ALLOWED = 0x02; + const uint8_t SOCKS5_REPLY_NETWORK_UNREACHABLE = 0x03; + const uint8_t SOCKS5_REPLY_HOST_UNREACHABLE = 0x04; + const uint8_t SOCKS5_REPLY_CONNECTION_REFUSED = 0x05; + const uint8_t SOCKS5_REPLY_TTL_EXPIRED = 0x06; + const uint8_t SOCKS5_REPLY_COMMAND_NOT_SUPPORTED = 0x07; + const uint8_t SOCKS5_REPLY_ADDRESS_TYPE_NOT_SUPPORTED = 0x08; + + // SOCKS5 handshake + template + void Socks5ReadReply (Socket& s, Handler handler) + { + auto readbuff = std::make_shared >(258); // max possible + boost::asio::async_read(s, boost::asio::buffer(readbuff->data (), 5), boost::asio::transfer_all(), // read 4 bytes of header + first byte of address + [readbuff, &s, handler](const boost::system::error_code& ec, std::size_t transferred) + { + if (!ec) + { + if ((*readbuff)[1] == SOCKS5_REPLY_SUCCESS) + { + size_t len = 0; + switch ((*readbuff)[3]) // ATYP + { + case SOCKS5_ATYP_IPV4: len = 3; break; // address length 4 bytes + case SOCKS5_ATYP_IPV6: len = 15; break; // address length 16 bytes + case SOCKS5_ATYP_NAME: len += (*readbuff)[4]; break; // first byte of address is length + default: ; + } + if (len) + { + len += 2; // port + boost::asio::async_read(s, boost::asio::buffer(readbuff->data (), len), boost::asio::transfer_all(), + [readbuff, handler](const boost::system::error_code& ec, std::size_t transferred) + { + if (!ec) + handler (boost::system::error_code ()); // success + else + handler (boost::asio::error::make_error_code (boost::asio::error::connection_aborted)); + }); + } + else + handler (boost::asio::error::make_error_code (boost::asio::error::fault)); // unknown address type + } + else + switch ((*readbuff)[1]) // REP + { + case SOCKS5_REPLY_SERVER_FAILURE: + handler (boost::asio::error::make_error_code (boost::asio::error::access_denied )); + break; + case SOCKS5_REPLY_CONNECTION_NOT_ALLOWED: + handler (boost::asio::error::make_error_code (boost::asio::error::no_permission)); + break; + case SOCKS5_REPLY_HOST_UNREACHABLE: + handler (boost::asio::error::make_error_code (boost::asio::error::host_unreachable)); + break; + case SOCKS5_REPLY_NETWORK_UNREACHABLE: + handler (boost::asio::error::make_error_code (boost::asio::error::network_unreachable)); + break; + case SOCKS5_REPLY_CONNECTION_REFUSED: + handler (boost::asio::error::make_error_code (boost::asio::error::connection_refused)); + break; + case SOCKS5_REPLY_TTL_EXPIRED: + handler (boost::asio::error::make_error_code (boost::asio::error::timed_out)); + break; + case SOCKS5_REPLY_COMMAND_NOT_SUPPORTED: + handler (boost::asio::error::make_error_code (boost::asio::error::operation_not_supported)); + break; + case SOCKS5_REPLY_ADDRESS_TYPE_NOT_SUPPORTED: + handler (boost::asio::error::make_error_code (boost::asio::error::no_protocol_option)); + break; + default: + handler (boost::asio::error::make_error_code (boost::asio::error::connection_aborted)); + } + } + else + handler (ec); + }); + } + + template + void Socks5Connect (Socket& s, Handler handler, std::shared_ptr > buff, uint16_t port) + { + if (buff && buff->size () >= 6) + { + (*buff)[0] = SOCKS5_VER; + (*buff)[1] = SOCKS5_CMD_CONNECT; + (*buff)[2] = 0x00; + htobe16buf(buff->data () + buff->size () - 2, port); + boost::asio::async_write(s, boost::asio::buffer(*buff), boost::asio::transfer_all(), + [buff, &s, handler](const boost::system::error_code& ec, std::size_t transferred) + { + (void) transferred; + if (!ec) + Socks5ReadReply (s, handler); + else + handler (ec); + }); + } + else + handler (boost::asio::error::make_error_code (boost::asio::error::no_buffer_space)); + } + + template + void Socks5Connect (Socket& s, const boost::asio::ip::tcp::endpoint& ep, Handler handler) + { + std::shared_ptr > buff; + if(ep.address ().is_v4 ()) + { + buff = std::make_shared >(10); + (*buff)[3] = SOCKS5_ATYP_IPV4; + auto addrbytes = ep.address ().to_v4().to_bytes(); + memcpy(buff->data () + 4, addrbytes.data(), 4); + } + else if (ep.address ().is_v6 ()) + { + buff = std::make_shared >(22); + (*buff)[3] = SOCKS5_ATYP_IPV6; + auto addrbytes = ep.address ().to_v6().to_bytes(); + memcpy(buff->data () + 4, addrbytes.data(), 16); + } + if (buff) + Socks5Connect (s, handler, buff, ep.port ()); + else + handler (boost::asio::error::make_error_code (boost::asio::error::fault)); + } + + template + void Socks5Connect (Socket& s, const std::pair& ep, Handler handler) + { + auto& addr = ep.first; + if (addr.length () <= 255) + { + auto buff = std::make_shared >(addr.length () + 7); + (*buff)[3] = SOCKS5_ATYP_NAME; + (*buff)[4] = addr.length (); + memcpy (buff->data () + 5, addr.c_str (), addr.length ()); + Socks5Connect (s, handler, buff, ep.second); + } + else + handler (boost::asio::error::make_error_code (boost::asio::error::name_too_long)); + } + + + template + void Socks5Handshake (Socket& s, Endpoint ep, Handler handler) + { + static const uint8_t methodSelection[3] = { SOCKS5_VER, 0x01, 0x00 }; // 1 method, no auth + boost::asio::async_write(s, boost::asio::buffer(methodSelection, 3), boost::asio::transfer_all(), + [&s, ep, handler] (const boost::system::error_code& ec, std::size_t transferred) + { + (void) transferred; + if (!ec) + { + auto readbuff = std::make_shared >(2); + boost::asio::async_read(s, boost::asio::buffer(*readbuff), boost::asio::transfer_all(), + [&s, ep, handler, readbuff] (const boost::system::error_code& ec, std::size_t transferred) + { + if (!ec) + { + if (transferred == 2 && (*readbuff)[1] == 0x00) // no auth + Socks5Connect (s, ep, handler); + else + handler (boost::asio::error::make_error_code (boost::asio::error::invalid_argument)); + } + else + handler (ec); + }); + } + else + handler (ec); + }); + } + +} +} + +#endif diff --git a/libi2pd/Streaming.cpp b/libi2pd/Streaming.cpp index 7b1f187b..99da5fd2 100644 --- a/libi2pd/Streaming.cpp +++ b/libi2pd/Streaming.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "Crypto.h" #include "Log.h" #include "RouterInfo.h" @@ -11,36 +19,55 @@ namespace i2p { namespace stream { - void SendBufferQueue::Add (const uint8_t * buf, size_t len, SendHandler handler) + void SendBufferQueue::Add (std::shared_ptr&& buf) { - m_Buffers.push_back (std::make_shared(buf, len, handler)); - m_Size += len; + if (buf) + { + m_Size += buf->len; + m_Buffers.push_back (std::move (buf)); + } } size_t SendBufferQueue::Get (uint8_t * buf, size_t len) { + if (!m_Size) return 0; size_t offset = 0; - while (!m_Buffers.empty () && offset < len) + if (len >= m_Size) { - auto nextBuffer = m_Buffers.front (); - auto rem = nextBuffer->GetRemainingSize (); - if (offset + rem <= len) + for (auto& it: m_Buffers) { - // whole buffer - memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), rem); + auto rem = it->GetRemainingSize (); + memcpy (buf + offset, it->GetRemaningBuffer (), rem); offset += rem; - m_Buffers.pop_front (); // delete it } - else + m_Buffers.clear (); + m_Size = 0; + return offset; + } + else + { + while (!m_Buffers.empty () && offset < len) { - // partially - rem = len - offset; - memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), len - offset); - nextBuffer->offset += (len - offset); - offset = len; // break + auto nextBuffer = m_Buffers.front (); + auto rem = nextBuffer->GetRemainingSize (); + if (offset + rem <= len) + { + // whole buffer + memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), rem); + offset += rem; + m_Buffers.pop_front (); // delete it + } + else + { + // partially + rem = len - offset; + memcpy (buf + offset, nextBuffer->GetRemaningBuffer (), rem); + nextBuffer->offset += rem; + offset = len; // break + } } - } - m_Size -= offset; + m_Size -= offset; + } return offset; } @@ -48,36 +75,66 @@ namespace stream { if (!m_Buffers.empty ()) { - for (auto it: m_Buffers) + for (auto& it: m_Buffers) it->Cancel (); m_Buffers.clear (); m_Size = 0; } } - Stream::Stream (boost::asio::io_service& service, StreamingDestination& local, + Stream::Stream (boost::asio::io_context& service, StreamingDestination& local, std::shared_ptr remote, int port): m_Service (service), - m_SendStreamID (0), m_SequenceNumber (0), m_LastReceivedSequenceNumber (-1), - m_Status (eStreamStatusNew), m_IsAckSendScheduled (false), m_LocalDestination (local), - m_RemoteLeaseSet (remote), m_ReceiveTimer (m_Service), m_ResendTimer (m_Service), - m_AckSendTimer (m_Service), m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (port), - m_WindowSize (MIN_WINDOW_SIZE), m_RTT (INITIAL_RTT), m_RTO (INITIAL_RTO), - m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), - m_LastWindowSizeIncreaseTime (0), m_NumResendAttempts (0) + m_SendStreamID (0), m_SequenceNumber (0), m_DropWindowDelaySequenceNumber (0), + m_TunnelsChangeSequenceNumber (0), m_LastReceivedSequenceNumber (-1), m_PreviousReceivedSequenceNumber (-1), + m_LastConfirmedReceivedSequenceNumber (0), // for limit inbound speed + m_Status (eStreamStatusNew), m_IsIncoming (false), m_IsAckSendScheduled (false), m_IsNAcked (false), m_IsFirstACK (false), + m_IsResendNeeded (false), m_IsFirstRttSample (false), m_IsSendTime (true), m_IsWinDropped (false), m_IsClientChoked (false), + m_IsTimeOutResend (false), m_IsImmediateAckRequested (false), m_IsRemoteLeaseChangeInProgress (false), m_DoubleWinIncCounter (false), m_LocalDestination (local), + m_RemoteLeaseSet (remote), m_ReceiveTimer (m_Service), m_SendTimer (m_Service), m_ResendTimer (m_Service), + m_AckSendTimer (m_Service), m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (port), + m_RTT (INITIAL_RTT), m_SlowRTT (INITIAL_RTT), m_SlowRTT2 (INITIAL_RTT), m_WindowSize (INITIAL_WINDOW_SIZE), m_LastWindowDropSize (0), + m_WindowDropTargetSize (0), m_WindowIncCounter (0), m_RTO (INITIAL_RTO), + m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), m_PrevRTTSample (INITIAL_RTT), m_WindowSizeTail (0), + m_Jitter (0), m_MinPacingTime (0), + m_PacingTime (INITIAL_PACING_TIME), m_PacingTimeRem (0), m_LastSendTime (0), m_LastACKRecieveTime (0), m_ACKRecieveInterval (local.GetOwner ()->GetStreamingAckDelay ()), m_RemoteLeaseChangeTime (0), m_LastWindowIncTime (0), + m_LastACKSendTime (0), m_PacketACKInterval (1), m_PacketACKIntervalRem (0), // for limit inbound speed + m_NumResendAttempts (0), m_NumPacketsToSend (0), m_MTU (STREAMING_MTU) { RAND_bytes ((uint8_t *)&m_RecvStreamID, 4); m_RemoteIdentity = remote->GetIdentity (); + auto outboundSpeed = local.GetOwner ()->GetStreamingOutboundSpeed (); + if (outboundSpeed) + m_MinPacingTime = (1000000LL*STREAMING_MTU)/outboundSpeed; + + auto inboundSpeed = local.GetOwner ()->GetStreamingInboundSpeed (); // for limit inbound speed + if (inboundSpeed) + m_PacketACKInterval = (1000000LL*STREAMING_MTU)/inboundSpeed; } - Stream::Stream (boost::asio::io_service& service, StreamingDestination& local): - m_Service (service), m_SendStreamID (0), m_SequenceNumber (0), m_LastReceivedSequenceNumber (-1), - m_Status (eStreamStatusNew), m_IsAckSendScheduled (false), m_LocalDestination (local), - m_ReceiveTimer (m_Service), m_ResendTimer (m_Service), m_AckSendTimer (m_Service), - m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (0), m_WindowSize (MIN_WINDOW_SIZE), - m_RTT (INITIAL_RTT), m_RTO (INITIAL_RTO), m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), - m_LastWindowSizeIncreaseTime (0), m_NumResendAttempts (0) + Stream::Stream (boost::asio::io_context& service, StreamingDestination& local): + m_Service (service), m_SendStreamID (0), m_SequenceNumber (0), m_DropWindowDelaySequenceNumber (0), + m_TunnelsChangeSequenceNumber (0), m_LastReceivedSequenceNumber (-1), m_PreviousReceivedSequenceNumber (-1), + m_LastConfirmedReceivedSequenceNumber (0), // for limit inbound speed + m_Status (eStreamStatusNew), m_IsIncoming (true), m_IsAckSendScheduled (false), m_IsNAcked (false), m_IsFirstACK (false), + m_IsResendNeeded (false), m_IsFirstRttSample (false), m_IsSendTime (true), m_IsWinDropped (false), m_IsClientChoked (false), + m_IsTimeOutResend (false), m_IsImmediateAckRequested (false), m_IsRemoteLeaseChangeInProgress (false), m_DoubleWinIncCounter (false), m_LocalDestination (local), + m_ReceiveTimer (m_Service), m_SendTimer (m_Service), m_ResendTimer (m_Service), m_AckSendTimer (m_Service), + m_NumSentBytes (0), m_NumReceivedBytes (0), m_Port (0), m_RTT (INITIAL_RTT), m_SlowRTT (INITIAL_RTT), m_SlowRTT2 (INITIAL_RTT), + m_WindowSize (INITIAL_WINDOW_SIZE), m_LastWindowDropSize (0), m_WindowDropTargetSize (0), m_WindowIncCounter (0), + m_RTO (INITIAL_RTO), m_AckDelay (local.GetOwner ()->GetStreamingAckDelay ()), + m_PrevRTTSample (INITIAL_RTT), m_WindowSizeTail (0), m_Jitter (0), m_MinPacingTime (0), + m_PacingTime (INITIAL_PACING_TIME), m_PacingTimeRem (0), m_LastSendTime (0), m_LastACKRecieveTime (0), m_ACKRecieveInterval (local.GetOwner ()->GetStreamingAckDelay ()), m_RemoteLeaseChangeTime (0), m_LastWindowIncTime (0), + m_LastACKSendTime (0), m_PacketACKInterval (1), m_PacketACKIntervalRem (0), // for limit inbound speed + m_NumResendAttempts (0), m_NumPacketsToSend (0), m_MTU (STREAMING_MTU) { RAND_bytes ((uint8_t *)&m_RecvStreamID, 4); + auto outboundSpeed = local.GetOwner ()->GetStreamingOutboundSpeed (); + if (outboundSpeed) + m_MinPacingTime = (1000000LL*STREAMING_MTU)/outboundSpeed; + + auto inboundSpeed = local.GetOwner ()->GetStreamingInboundSpeed (); // for limit inbound speed + if (inboundSpeed) + m_PacketACKInterval = (1000000LL*STREAMING_MTU)/inboundSpeed; } Stream::~Stream () @@ -86,27 +143,29 @@ namespace stream LogPrint (eLogDebug, "Streaming: Stream deleted"); } - void Stream::Terminate () + void Stream::Terminate (bool deleteFromDestination) // should be called from StreamingDestination::Stop only { + m_Status = eStreamStatusTerminated; m_AckSendTimer.cancel (); m_ReceiveTimer.cancel (); m_ResendTimer.cancel (); + m_SendTimer.cancel (); //CleanUp (); /* Need to recheck - broke working on windows */ - m_LocalDestination.DeleteStream (shared_from_this ()); + if (deleteFromDestination) + m_LocalDestination.DeleteStream (shared_from_this ()); } void Stream::CleanUp () { - { - std::unique_lock l(m_SendBufferMutex); - m_SendBuffer.CleanUp (); - } + m_SendBuffer.CleanUp (); while (!m_ReceiveQueue.empty ()) { auto packet = m_ReceiveQueue.front (); m_ReceiveQueue.pop (); m_LocalDestination.DeletePacket (packet); } + + m_NACKedPackets.clear (); for (auto it: m_SentPackets) m_LocalDestination.DeletePacket (it); @@ -119,19 +178,51 @@ namespace stream void Stream::HandleNextPacket (Packet * packet) { + if (m_Status == eStreamStatusTerminated) + { + m_LocalDestination.DeletePacket (packet); + return; + } m_NumReceivedBytes += packet->GetLength (); if (!m_SendStreamID) + { m_SendStreamID = packet->GetReceiveStreamID (); + if (!m_RemoteIdentity && packet->GetNACKCount () == 8 && // first incoming packet + memcmp (packet->GetNACKs (), m_LocalDestination.GetOwner ()->GetIdentHash (), 32)) + { + LogPrint (eLogWarning, "Streaming: Destination mismatch for ", m_LocalDestination.GetOwner ()->GetIdentHash ().ToBase32 ()); + m_LocalDestination.DeletePacket (packet); + return; + } + } if (!packet->IsNoAck ()) // ack received ProcessAck (packet); int32_t receivedSeqn = packet->GetSeqn (); - bool isSyn = packet->IsSYN (); - if (!receivedSeqn && !isSyn) + if (!receivedSeqn && m_LastReceivedSequenceNumber >= 0) { - // plain ack - LogPrint (eLogDebug, "Streaming: Plain ACK received"); + uint16_t flags = packet->GetFlags (); + if (flags) + // plain ack with options + ProcessOptions (flags, packet); + else + // plain ack + { + LogPrint (eLogDebug, "Streaming: Plain ACK received"); + if (m_IsImmediateAckRequested) + { + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (m_IsFirstRttSample) + { + m_RTT = ts - m_LastSendTime; + m_IsFirstRttSample = false; + } + else + m_RTT = (m_RTT + (ts - m_LastSendTime)) / 2; + m_IsImmediateAckRequested = false; + } + } m_LocalDestination.DeletePacket (packet); return; } @@ -141,7 +232,8 @@ namespace stream { // we have received next in sequence message ProcessPacket (packet); - + if (m_Status == eStreamStatusTerminated) return; + // we should also try stored messages if any for (auto it = m_SavedPackets.begin (); it != m_SavedPackets.end ();) { @@ -151,6 +243,7 @@ namespace stream m_SavedPackets.erase (it++); ProcessPacket (savedPacket); + if (m_Status == eStreamStatusTerminated) return; } else break; @@ -161,15 +254,12 @@ namespace stream { if (!m_IsAckSendScheduled) { - m_IsAckSendScheduled = true; auto ackTimeout = m_RTT/10; if (ackTimeout > m_AckDelay) ackTimeout = m_AckDelay; - m_AckSendTimer.expires_from_now (boost::posix_time::milliseconds(ackTimeout)); - m_AckSendTimer.async_wait (std::bind (&Stream::HandleAckSendTimer, - shared_from_this (), std::placeholders::_1)); + ScheduleAck (ackTimeout); } } - else if (isSyn) + else if (packet->IsSYN ()) // we have to send SYN back to incoming connection SendBuffer (); // also sets m_IsOpen } @@ -179,8 +269,21 @@ namespace stream { // we have received duplicate LogPrint (eLogWarning, "Streaming: Duplicate message ", receivedSeqn, " on sSID=", m_SendStreamID); - SendQuickAck (); // resend ack for previous message again + if (receivedSeqn <= m_PreviousReceivedSequenceNumber || receivedSeqn == m_LastReceivedSequenceNumber) + { + m_CurrentOutboundTunnel = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNextOutboundTunnel (m_CurrentOutboundTunnel); + CancelRemoteLeaseChange (); + UpdateCurrentRemoteLease (); + } + m_PreviousReceivedSequenceNumber = receivedSeqn; m_LocalDestination.DeletePacket (packet); // packet dropped + if (!m_IsAckSendScheduled) + { + SendQuickAck (); // resend ack for previous message again + auto ackTimeout = m_RTT/10; + if (ackTimeout > m_AckDelay) ackTimeout = m_AckDelay; + ScheduleAck (ackTimeout); + } } else { @@ -189,22 +292,18 @@ namespace stream SavePacket (packet); if (m_LastReceivedSequenceNumber >= 0) { - // send NACKs for missing messages ASAP - if (m_IsAckSendScheduled) - { - m_IsAckSendScheduled = false; - m_AckSendTimer.cancel (); - } - SendQuickAck (); - } + if (!m_IsAckSendScheduled) + { + // send NACKs for missing messages + SendQuickAck (); + auto ackTimeout = m_RTT/10; + if (ackTimeout > m_AckDelay) ackTimeout = m_AckDelay; + ScheduleAck (ackTimeout); + } + } else - { // wait for SYN - m_IsAckSendScheduled = true; - m_AckSendTimer.expires_from_now (boost::posix_time::milliseconds(SYN_TIMEOUT)); - m_AckSendTimer.async_wait (std::bind (&Stream::HandleAckSendTimer, - shared_from_this (), std::placeholders::_1)); - } + ScheduleAck (SYN_TIMEOUT); } } } @@ -227,7 +326,7 @@ namespace stream Terminate (); return; } - + packet->offset = packet->GetPayload () - packet->buf; if (packet->GetLength () > 0) { @@ -257,9 +356,45 @@ namespace stream bool Stream::ProcessOptions (uint16_t flags, Packet * packet) { const uint8_t * optionData = packet->GetOptionData (); - size_t optionSize = packet->GetOptionSize (); + size_t optionSize = packet->GetOptionSize (); + if (optionSize > packet->len) + { + LogPrint (eLogInfo, "Streaming: Invalid option size ", optionSize, " Discarded"); + return false; + } + if (!flags) return true; + bool immediateAckRequested = false; if (flags & PACKET_FLAG_DELAY_REQUESTED) + { + uint16_t delayRequested = bufbe16toh (optionData); + if (!delayRequested) // 0 requests an immediate ack + immediateAckRequested = true; + else if (!m_IsAckSendScheduled) + { + if (delayRequested < m_RTT) + { + m_IsAckSendScheduled = true; + m_AckSendTimer.expires_from_now (boost::posix_time::milliseconds(delayRequested)); + m_AckSendTimer.async_wait (std::bind (&Stream::HandleAckSendTimer, + shared_from_this (), std::placeholders::_1)); + } + if (delayRequested >= DELAY_CHOKING) + { + if (!m_IsClientChoked) + { + LogPrint (eLogDebug, "Streaming: Client choked, set min. window size"); + m_WindowDropTargetSize = MIN_WINDOW_SIZE; + m_LastWindowDropSize = 0; + m_WindowIncCounter = 0; + m_IsClientChoked = true; + m_IsWinDropped = false; + m_DropWindowDelaySequenceNumber = m_SequenceNumber; + UpdatePacingTime (); + } + } + } optionData += 2; + } if (flags & PACKET_FLAG_FROM_INCLUDED) { @@ -268,7 +403,7 @@ namespace stream m_RemoteIdentity = std::make_shared(optionData, optionSize); if (m_RemoteIdentity->IsRSA ()) { - LogPrint (eLogInfo, "Streaming: Incoming stream from RSA destination ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " Discarded"); + LogPrint (eLogInfo, "Streaming: Incoming stream from RSA destination ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " Discarded"); return false; } optionData += m_RemoteIdentity->GetFullLen (); @@ -305,41 +440,78 @@ namespace stream size_t offset = 0; m_TransientVerifier = i2p::data::ProcessOfflineSignature (m_RemoteIdentity, optionData, optionSize - (optionData - packet->GetOptionData ()), offset); optionData += offset; - if (!m_TransientVerifier) + if (!m_TransientVerifier) { LogPrint (eLogError, "Streaming: offline signature failed"); return false; - } + } } } if (flags & PACKET_FLAG_SIGNATURE_INCLUDED) { - uint8_t signature[256]; - auto signatureLen = m_RemoteIdentity->GetSignatureLen (); - if(signatureLen <= sizeof(signature)) - { - memcpy (signature, optionData, signatureLen); - memset (const_cast(optionData), 0, signatureLen); - bool verified = m_TransientVerifier ? - m_TransientVerifier->Verify (packet->GetBuffer (), packet->GetLength (), signature) : - m_RemoteIdentity->Verify (packet->GetBuffer (), packet->GetLength (), signature); - if (!verified) - { - LogPrint (eLogError, "Streaming: Signature verification failed, sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID); - Close (); - flags |= PACKET_FLAG_CLOSE; - } - memcpy (const_cast(optionData), signature, signatureLen); - optionData += signatureLen; - } - else + bool verified = false; + auto signatureLen = m_TransientVerifier ? m_TransientVerifier->GetSignatureLen () : m_RemoteIdentity->GetSignatureLen (); + if (signatureLen > packet->GetLength ()) { LogPrint (eLogError, "Streaming: Signature too big, ", signatureLen, " bytes"); return false; + } + if(signatureLen <= 256) + { + // standard + uint8_t signature[256]; + memcpy (signature, optionData, signatureLen); + memset (const_cast(optionData), 0, signatureLen); + verified = m_TransientVerifier ? + m_TransientVerifier->Verify (packet->GetBuffer (), packet->GetLength (), signature) : + m_RemoteIdentity->Verify (packet->GetBuffer (), packet->GetLength (), signature); + if (verified) + memcpy (const_cast(optionData), signature, signatureLen); } + else + { + // post quantum + std::vector signature(signatureLen); + memcpy (signature.data (), optionData, signatureLen); + memset (const_cast(optionData), 0, signatureLen); + verified = m_TransientVerifier ? + m_TransientVerifier->Verify (packet->GetBuffer (), packet->GetLength (), signature.data ()) : + m_RemoteIdentity->Verify (packet->GetBuffer (), packet->GetLength (), signature.data ()); + } + if (verified) + optionData += signatureLen; + else + { + LogPrint (eLogError, "Streaming: Signature verification failed, sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID); + return false; + } } - return true; + if (immediateAckRequested) + SendQuickAck (); + return true; + } + + void Stream::HandlePing (Packet * packet) + { + uint16_t flags = packet->GetFlags (); + if (ProcessOptions (flags, packet) && m_RemoteIdentity) + { + // send pong + Packet p; + memset (p.buf, 0, 22); // minimal header all zeroes + memcpy (p.buf + 4, packet->buf, 4); // but receiveStreamID is the sendStreamID from the ping + htobe16buf (p.buf + 18, PACKET_FLAG_ECHO); // and echo flag + auto payloadLen = int(packet->len) - (packet->GetPayload () - packet->buf); + if (payloadLen > 0) + memcpy (p.buf + 22, packet->GetPayload (), payloadLen); + else + payloadLen = 0; + p.len = payloadLen + 22; + SendPackets (std::vector { &p }); + LogPrint (eLogDebug, "Streaming: Pong of ", p.len, " bytes sent"); + } + m_LocalDestination.DeletePacket (packet); } void Stream::ProcessAck (Packet * packet) @@ -347,11 +519,16 @@ namespace stream bool acknowledged = false; auto ts = i2p::util::GetMillisecondsSinceEpoch (); uint32_t ackThrough = packet->GetAckThrough (); + m_NACKedPackets.clear (); if (ackThrough > m_SequenceNumber) { LogPrint (eLogError, "Streaming: Unexpected ackThrough=", ackThrough, " > seqn=", m_SequenceNumber); return; } + int rttSample = INT_MAX; + int incCounter = 0; + m_IsNAcked = false; + m_IsResendNeeded = false; int nackCount = packet->GetNACKCount (); for (auto it = m_SentPackets.begin (); it != m_SentPackets.end ();) { @@ -364,6 +541,8 @@ namespace stream for (int i = 0; i < nackCount; i++) if (seqn == packet->GetNACK (i)) { + m_NACKedPackets.insert (*it); + m_IsNAcked = true; nacked = true; break; } @@ -375,43 +554,134 @@ namespace stream } } auto sentPacket = *it; - uint64_t rtt = ts - sentPacket->sendTime; - if(ts < sentPacket->sendTime) + int64_t rtt = (int64_t)ts - (int64_t)sentPacket->sendTime; + if (rtt < 0) + LogPrint (eLogError, "Streaming: Packet ", seqn, "sent from the future, sendTime=", sentPacket->sendTime); + if (!seqn) { - LogPrint(eLogError, "Streaming: Packet ", seqn, "sent from the future, sendTime=", sentPacket->sendTime); - rtt = 1; + m_IsFirstRttSample = true; + rttSample = rtt < 0 ? 1 : rtt; } - m_RTT = (m_RTT*seqn + rtt)/(seqn + 1); - m_RTO = m_RTT*1.5; // TODO: implement it better + else if (!sentPacket->resent && seqn > m_TunnelsChangeSequenceNumber && rtt >= 0) + rttSample = std::min (rttSample, (int)rtt); LogPrint (eLogDebug, "Streaming: Packet ", seqn, " acknowledged rtt=", rtt, " sentTime=", sentPacket->sendTime); m_SentPackets.erase (it++); m_LocalDestination.DeletePacket (sentPacket); acknowledged = true; - if (m_WindowSize < WINDOW_SIZE) - m_WindowSize++; // slow start - else - { - // linear growth - if (ts > m_LastWindowSizeIncreaseTime + m_RTT) - { - m_WindowSize++; - if (m_WindowSize > MAX_WINDOW_SIZE) m_WindowSize = MAX_WINDOW_SIZE; - m_LastWindowSizeIncreaseTime = ts; - } - } - if (!seqn && m_RoutingSession) // first message confirmed - m_RoutingSession->SetSharedRoutingPath ( - std::make_shared ( - i2p::garlic::GarlicRoutingPath{m_CurrentOutboundTunnel, m_CurrentRemoteLease, m_RTT, 0, 0})); + if (m_WindowIncCounter < MAX_WINDOW_SIZE && !m_IsFirstACK && !m_IsWinDropped) + incCounter++; } else break; } - if (m_SentPackets.empty ()) + if (m_LastACKRecieveTime) + { + uint64_t interval = ts - m_LastACKRecieveTime; + if (m_ACKRecieveInterval) + m_ACKRecieveInterval = (m_ACKRecieveInterval + interval) / 2; + else + m_ACKRecieveInterval = interval; + } + m_LastACKRecieveTime = ts; + if (rttSample != INT_MAX) + { + if (m_IsFirstRttSample && !m_IsFirstACK) + { + m_RTT = rttSample; + m_SlowRTT = rttSample; + m_SlowRTT2 = rttSample; + m_PrevRTTSample = rttSample; + m_Jitter = rttSample / 10; // 10% + m_Jitter += 15; // for low-latency connections + m_IsFirstRttSample = false; + } + else + m_RTT = (m_PrevRTTSample + rttSample) / 2; + if (!m_IsWinDropped) + { + m_SlowRTT = SLOWRTT_EWMA_ALPHA * m_RTT + (1.0 - SLOWRTT_EWMA_ALPHA) * m_SlowRTT; + m_SlowRTT2 = RTT_EWMA_ALPHA * m_RTT + (1.0 - RTT_EWMA_ALPHA) * m_SlowRTT2; + // calculate jitter + double jitter = 0; + if (rttSample > m_PrevRTTSample) + jitter = rttSample - m_PrevRTTSample; + else if (rttSample < m_PrevRTTSample) + jitter = m_PrevRTTSample - rttSample; + else + jitter = rttSample / 10; // 10% + jitter += 15; // for low-latency connections + m_Jitter = (0.05 * jitter) + (1.0 - 0.05) * m_Jitter; + } + if (rttSample > m_SlowRTT) + { + incCounter = 0; + m_DoubleWinIncCounter = 1; + } + else if (rttSample < m_SlowRTT) + { + if (m_DoubleWinIncCounter) + { + incCounter = incCounter * 2; + m_DoubleWinIncCounter = 0; + } + } + m_WindowIncCounter = m_WindowIncCounter + incCounter; + // + // delay-based CC + if ((m_SlowRTT2 > m_SlowRTT + m_Jitter && rttSample > m_SlowRTT2 && rttSample > m_PrevRTTSample) && !m_IsWinDropped && !m_IsClientChoked) // Drop window if RTT grows too fast, late detection + { + LogPrint (eLogDebug, "Streaming: Congestion detected, reduce window size"); + ProcessWindowDrop (); + } + UpdatePacingTime (); + m_PrevRTTSample = rttSample; + + bool wasInitial = m_RTO == INITIAL_RTO; + m_RTO = std::max (MIN_RTO, (int)(m_RTT * 1.3 + m_Jitter + m_ACKRecieveInterval)); // TODO: implement it better + + if (wasInitial) + ScheduleResend (); + } + if (m_IsClientChoked && ackThrough >= m_DropWindowDelaySequenceNumber) + m_IsClientChoked = false; + if (m_IsWinDropped && ackThrough > m_DropWindowDelaySequenceNumber) + { + m_IsFirstRttSample = true; + m_IsWinDropped = false; + } + if (m_WindowDropTargetSize && int(m_SentPackets.size ()) <= m_WindowDropTargetSize) + { + m_WindowSize = m_WindowDropTargetSize; + m_WindowDropTargetSize = 0; + } + if (acknowledged || m_IsNAcked) + { + ScheduleResend (); + } + if (m_SendBuffer.IsEmpty () && m_SentPackets.size () > 0) // tail loss + { + m_IsResendNeeded = true; + m_RTO = std::max (MIN_RTO, (int)(m_RTT * 1.5 + m_Jitter + m_ACKRecieveInterval)); // to prevent spurious retransmit + } + if (m_SentPackets.empty () && m_SendBuffer.IsEmpty ()) + { m_ResendTimer.cancel (); + m_SendTimer.cancel (); + m_LastACKRecieveTime = 0; + m_ACKRecieveInterval = m_AckDelay; + } + if (acknowledged && m_IsFirstACK) + { + if (m_RoutingSession) + m_RoutingSession->SetSharedRoutingPath ( + std::make_shared ( + i2p::garlic::GarlicRoutingPath{m_CurrentOutboundTunnel, m_CurrentRemoteLease, (int)m_RTT, 0})); + m_IsFirstACK = false; + } if (acknowledged) { m_NumResendAttempts = 0; + m_IsTimeOutResend = false; SendBuffer (); } if (m_Status == eStreamStatusClosed) @@ -420,106 +690,167 @@ namespace stream Close (); // check is all outgoing messages have been sent and we can send close } + size_t Stream::Receive (uint8_t * buf, size_t len, int timeout) + { + if (!len) return 0; + size_t ret = 0; + volatile bool done = false; + std::condition_variable newDataReceived; + std::mutex newDataReceivedMutex; + AsyncReceive (boost::asio::buffer (buf, len), + [&ret, &done, &newDataReceived, &newDataReceivedMutex](const boost::system::error_code& ecode, std::size_t bytes_transferred) + { + if (ecode == boost::asio::error::timed_out) + ret = 0; + else + ret = bytes_transferred; + std::unique_lock l(newDataReceivedMutex); + newDataReceived.notify_all (); + done = true; + }, + timeout); + if (!done) + { std::unique_lock l(newDataReceivedMutex); + if (!done && newDataReceived.wait_for (l, std::chrono::seconds (timeout)) == std::cv_status::timeout) + ret = 0; + } + if (!done) + { + // make sure that AsycReceive complete + auto s = shared_from_this(); + boost::asio::post (m_Service, [s]() + { + s->m_ReceiveTimer.cancel (); + }); + int i = 0; + while (!done && i < 100) // 1 sec + { + std::this_thread::sleep_for (std::chrono::milliseconds(10)); + i++; + } + } + return ret; + } + size_t Stream::Send (const uint8_t * buf, size_t len) { - size_t sent = len; - while(len > MAX_PACKET_SIZE) - { - AsyncSend (buf, MAX_PACKET_SIZE, nullptr); - buf += MAX_PACKET_SIZE; - len -= MAX_PACKET_SIZE; - } AsyncSend (buf, len, nullptr); - return sent; + return len; } void Stream::AsyncSend (const uint8_t * buf, size_t len, SendHandler handler) { + std::shared_ptr buffer; if (len > 0 && buf) - { - std::unique_lock l(m_SendBufferMutex); - m_SendBuffer.Add (buf, len, handler); - } + buffer = std::make_shared(buf, len, handler); else if (handler) - handler(boost::system::error_code ()); - m_Service.post (std::bind (&Stream::SendBuffer, shared_from_this ())); + handler(boost::system::error_code ()); + auto s = shared_from_this (); + boost::asio::post (m_Service, [s, buffer = std::move(buffer)]() mutable + { + if (buffer) + s->m_SendBuffer.Add (std::move(buffer)); + s->SendBuffer (); + }); } void Stream::SendBuffer () { + if (m_RemoteLeaseSet) // don't scheudle send for first SYN for incoming stream + ScheduleSend (); + auto ts = i2p::util::GetMillisecondsSinceEpoch (); int numMsgs = m_WindowSize - m_SentPackets.size (); - if (numMsgs <= 0) return; // window is full - + if (numMsgs <= 0 || !m_IsSendTime) // window is full + { + m_LastSendTime = ts; + return; + } + else if (numMsgs > m_NumPacketsToSend) + numMsgs = m_NumPacketsToSend; bool isNoAck = m_LastReceivedSequenceNumber < 0; // first packet std::vector packets; + while ((m_Status == eStreamStatusNew) || (IsEstablished () && !m_SendBuffer.IsEmpty () && numMsgs > 0)) { - std::unique_lock l(m_SendBufferMutex); - while ((m_Status == eStreamStatusNew) || (IsEstablished () && !m_SendBuffer.IsEmpty () && numMsgs > 0)) + Packet * p = m_LocalDestination.NewPacket (); + uint8_t * packet = p->GetBuffer (); + // TODO: implement setters + size_t size = 0; + htobe32buf (packet + size, m_SendStreamID); + size += 4; // sendStreamID + htobe32buf (packet + size, m_RecvStreamID); + size += 4; // receiveStreamID + htobe32buf (packet + size, m_SequenceNumber++); + size += 4; // sequenceNum + if (isNoAck) + htobuf32 (packet + size, 0); + else + htobe32buf (packet + size, m_LastReceivedSequenceNumber); + size += 4; // ack Through + if (m_Status == eStreamStatusNew && !m_SendStreamID && m_RemoteIdentity) { - Packet * p = m_LocalDestination.NewPacket (); - uint8_t * packet = p->GetBuffer (); - // TODO: implement setters - size_t size = 0; - htobe32buf (packet + size, m_SendStreamID); - size += 4; // sendStreamID - htobe32buf (packet + size, m_RecvStreamID); - size += 4; // receiveStreamID - htobe32buf (packet + size, m_SequenceNumber++); - size += 4; // sequenceNum - if (isNoAck) - htobuf32 (packet + size, 0); - else - htobe32buf (packet + size, m_LastReceivedSequenceNumber); - size += 4; // ack Through + // first SYN packet + packet[size] = 8; + size++; // NACK count + memcpy (packet + size, m_RemoteIdentity->GetIdentHash (), 32); + size += 32; + } + else + { packet[size] = 0; size++; // NACK count - packet[size] = m_RTO/1000; - size++; // resend delay - if (m_Status == eStreamStatusNew) + } + packet[size] = m_RTO/1000; + size++; // resend delay + if (m_Status == eStreamStatusNew) + { + // initial packet + m_Status = eStreamStatusOpen; + if (!m_RemoteLeaseSet) m_RemoteLeaseSet = m_LocalDestination.GetOwner ()->FindLeaseSet (m_RemoteIdentity->GetIdentHash ());; + if (m_RemoteLeaseSet) { - // initial packet - m_Status = eStreamStatusOpen; - uint16_t flags = PACKET_FLAG_SYNCHRONIZE | PACKET_FLAG_FROM_INCLUDED | - PACKET_FLAG_SIGNATURE_INCLUDED | PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED; - if (isNoAck) flags |= PACKET_FLAG_NO_ACK; - bool isOfflineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().IsOfflineSignature (); - if (isOfflineSignature) flags |= PACKET_FLAG_OFFLINE_SIGNATURE; - htobe16buf (packet + size, flags); - size += 2; // flags - size_t identityLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetFullLen (); - size_t signatureLen = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetSignatureLen (); - uint8_t * optionsSize = packet + size; // set options size later - size += 2; // options size - m_LocalDestination.GetOwner ()->GetIdentity ()->ToBuffer (packet + size, identityLen); - size += identityLen; // from - htobe16buf (packet + size, STREAMING_MTU); - size += 2; // max packet size - if (isOfflineSignature) - { - const auto& offlineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetOfflineSignature (); - memcpy (packet + size, offlineSignature.data (), offlineSignature.size ()); - size += offlineSignature.size (); // offline signature - } - uint8_t * signature = packet + size; // set it later - memset (signature, 0, signatureLen); // zeroes for now - size += signatureLen; // signature - htobe16buf (optionsSize, packet + size - 2 - optionsSize); // actual options size - size += m_SendBuffer.Get (packet + size, STREAMING_MTU - size); // payload - m_LocalDestination.GetOwner ()->Sign (packet, size, signature); + m_RoutingSession = m_LocalDestination.GetOwner ()->GetRoutingSession (m_RemoteLeaseSet, true, !m_IsIncoming); + m_MTU = (m_RoutingSession && m_RoutingSession->IsRatchets ()) ? STREAMING_MTU_RATCHETS : STREAMING_MTU; } - else + uint16_t flags = PACKET_FLAG_SYNCHRONIZE | PACKET_FLAG_FROM_INCLUDED | + PACKET_FLAG_SIGNATURE_INCLUDED | PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED; + if (isNoAck) flags |= PACKET_FLAG_NO_ACK; + bool isOfflineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().IsOfflineSignature (); + if (isOfflineSignature) flags |= PACKET_FLAG_OFFLINE_SIGNATURE; + htobe16buf (packet + size, flags); + size += 2; // flags + size_t identityLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetFullLen (); + size_t signatureLen = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetSignatureLen (); + uint8_t * optionsSize = packet + size; // set options size later + size += 2; // options size + m_LocalDestination.GetOwner ()->GetIdentity ()->ToBuffer (packet + size, identityLen); + size += identityLen; // from + htobe16buf (packet + size, m_MTU); + size += 2; // max packet size + if (isOfflineSignature) { - // follow on packet - htobuf16 (packet + size, 0); - size += 2; // flags - htobuf16 (packet + size, 0); // no options - size += 2; // options size - size += m_SendBuffer.Get(packet + size, STREAMING_MTU - size); // payload + const auto& offlineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetOfflineSignature (); + memcpy (packet + size, offlineSignature.data (), offlineSignature.size ()); + size += offlineSignature.size (); // offline signature } - p->len = size; - packets.push_back (p); - numMsgs--; + uint8_t * signature = packet + size; // set it later + memset (signature, 0, signatureLen); // zeroes for now + size += signatureLen; // signature + htobe16buf (optionsSize, packet + size - 2 - optionsSize); // actual options size + size += m_SendBuffer.Get (packet + size, m_MTU); // payload + m_LocalDestination.GetOwner ()->Sign (packet, size, signature); } + else + { + // follow on packet + htobuf16 (packet + size, 0); + size += 2; // flags + htobuf16 (packet + size, 0); // no options + size += 2; // options size + size += m_SendBuffer.Get(packet + size, m_MTU); // payload + } + p->len = size; + packets.push_back (p); + numMsgs--; } if (packets.size () > 0) { @@ -529,13 +860,15 @@ namespace stream m_AckSendTimer.cancel (); } bool isEmpty = m_SentPackets.empty (); - auto ts = i2p::util::GetMillisecondsSinceEpoch (); +// auto ts = i2p::util::GetMillisecondsSinceEpoch (); for (auto& it: packets) { it->sendTime = ts; m_SentPackets.insert (it); } SendPackets (packets); + m_LastSendTime = ts; + m_IsSendTime = false; if (m_Status == eStreamStatusClosing && m_SendBuffer.IsEmpty ()) SendClose (); if (isEmpty) @@ -546,10 +879,53 @@ namespace stream void Stream::SendQuickAck () { int32_t lastReceivedSeqn = m_LastReceivedSequenceNumber; + // for limit inbound speed + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + int numPackets = 0; + bool lostPackets = false; + int64_t passedTime = m_PacketACKInterval * INITIAL_WINDOW_SIZE; // in microseconds // while m_LastACKSendTime == 0 + if (m_LastACKSendTime) + passedTime = (ts - m_LastACKSendTime)*1000; // in microseconds + numPackets = (passedTime + m_PacketACKIntervalRem) / m_PacketACKInterval; + m_PacketACKIntervalRem = (passedTime + m_PacketACKIntervalRem) - (numPackets * m_PacketACKInterval); + if (m_LastConfirmedReceivedSequenceNumber + numPackets < m_LastReceivedSequenceNumber) + { + lastReceivedSeqn = m_LastConfirmedReceivedSequenceNumber + numPackets; + if (!m_IsAckSendScheduled) + { + auto ackTimeout = m_RTT/10; + if (ackTimeout > m_AckDelay) ackTimeout = m_AckDelay; + ScheduleAck (ackTimeout); + } + } + if (numPackets == 0) return; + // for limit inbound speed if (!m_SavedPackets.empty ()) { - int32_t seqn = (*m_SavedPackets.rbegin ())->GetSeqn (); - if (seqn > lastReceivedSeqn) lastReceivedSeqn = seqn; + for (auto it: m_SavedPackets) + { + auto seqn = it->GetSeqn (); + // for limit inbound speed + if (m_LastConfirmedReceivedSequenceNumber + numPackets < int(seqn)) + { + if (!m_IsAckSendScheduled) + { + auto ackTimeout = m_RTT/10; + if (ackTimeout > m_AckDelay) ackTimeout = m_AckDelay; + ScheduleAck (ackTimeout); + } + if (lostPackets) + break; + else + return; + } + // for limit inbound speed + if ((int)seqn > lastReceivedSeqn) + { + lastReceivedSeqn = seqn; + lostPackets = true; // for limit inbound speed + } + } } if (lastReceivedSeqn < 0) { @@ -569,6 +945,7 @@ namespace stream htobe32buf (packet + size, lastReceivedSeqn); size += 4; // ack Through uint8_t numNacks = 0; + bool choking = false; if (lastReceivedSeqn > m_LastReceivedSequenceNumber) { // fill NACKs @@ -577,10 +954,16 @@ namespace stream for (auto it: m_SavedPackets) { auto seqn = it->GetSeqn (); + if (m_LastConfirmedReceivedSequenceNumber + numPackets < int(seqn)) // for limit inbound speed + { + htobe32buf (packet + 12, nextSeqn - 1); + break; + } if (numNacks + (seqn - nextSeqn) >= 256) { LogPrint (eLogError, "Streaming: Number of NACKs exceeds 256. seqn=", seqn, " nextSeqn=", nextSeqn); - htobe32buf (packet + 12, nextSeqn); // change ack Through + htobe32buf (packet + 12, nextSeqn - 1); // change ack Through back + choking = true; break; } for (uint32_t i = nextSeqn; i < seqn; i++) @@ -601,17 +984,72 @@ namespace stream packet[size] = 0; size++; // NACK count } - size++; // resend delay - htobuf16 (packet + size, 0); // no flags set + packet[size] = 0; + size++; // resend delay + bool requestImmediateAck = false; + if (!choking) + requestImmediateAck = m_LastSendTime && ts > m_LastSendTime + REQUEST_IMMEDIATE_ACK_INTERVAL && + ts > m_LastSendTime + REQUEST_IMMEDIATE_ACK_INTERVAL + m_LocalDestination.GetRandom () % REQUEST_IMMEDIATE_ACK_INTERVAL_VARIANCE; + htobe16buf (packet + size, (choking || requestImmediateAck) ? PACKET_FLAG_DELAY_REQUESTED : 0); // no flags set or delay requested size += 2; // flags - htobuf16 (packet + size, 0); // no options + if (choking || requestImmediateAck) + { + htobe16buf (packet + size, 2); // 2 bytes delay interval + htobe16buf (packet + size + 2, choking ? DELAY_CHOKING : 0); // set choking or immediate ack interval + size += 2; + if (requestImmediateAck) // ack request sent + { + m_LastSendTime = ts; + m_IsImmediateAckRequested = true; + } + } + else + htobuf16 (packet + size, 0); // no options size += 2; // options size p.len = size; SendPackets (std::vector { &p }); + m_LastACKSendTime = ts; // for limit inbound speed + m_LastConfirmedReceivedSequenceNumber = lastReceivedSeqn; // for limit inbound speed LogPrint (eLogDebug, "Streaming: Quick Ack sent. ", (int)numNacks, " NACKs"); } + void Stream::SendPing () + { + Packet p; + uint8_t * packet = p.GetBuffer (); + size_t size = 0; + htobe32buf (packet, m_RecvStreamID); + size += 4; // sendStreamID + memset (packet + size, 0, 14); + size += 14; // all zeroes + uint16_t flags = PACKET_FLAG_ECHO | PACKET_FLAG_SIGNATURE_INCLUDED | PACKET_FLAG_FROM_INCLUDED; + bool isOfflineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().IsOfflineSignature (); + if (isOfflineSignature) flags |= PACKET_FLAG_OFFLINE_SIGNATURE; + htobe16buf (packet + size, flags); + size += 2; // flags + size_t identityLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetFullLen (); + size_t signatureLen = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetSignatureLen (); + uint8_t * optionsSize = packet + size; // set options size later + size += 2; // options size + m_LocalDestination.GetOwner ()->GetIdentity ()->ToBuffer (packet + size, identityLen); + size += identityLen; // from + if (isOfflineSignature) + { + const auto& offlineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetOfflineSignature (); + memcpy (packet + size, offlineSignature.data (), offlineSignature.size ()); + size += offlineSignature.size (); // offline signature + } + uint8_t * signature = packet + size; // set it later + memset (signature, 0, signatureLen); // zeroes for now + size += signatureLen; // signature + htobe16buf (optionsSize, packet + size - 2 - optionsSize); // actual options size + m_LocalDestination.GetOwner ()->Sign (packet, size, signature); + p.len = size; + SendPackets (std::vector { &p }); + LogPrint (eLogDebug, "Streaming: Ping of ", p.len, " bytes sent"); + } + void Stream::Close () { LogPrint(eLogDebug, "Streaming: closing stream with sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID, ", status=", m_Status); @@ -639,7 +1077,7 @@ namespace stream Terminate (); break; default: - LogPrint (eLogWarning, "Streaming: Unexpected stream status ", (int)m_Status, "sSID=", m_SendStreamID); + LogPrint (eLogWarning, "Streaming: Unexpected stream status=", (int)m_Status, " for sSID=", m_SendStreamID); }; } @@ -654,14 +1092,15 @@ namespace stream size += 4; // receiveStreamID htobe32buf (packet + size, m_SequenceNumber++); size += 4; // sequenceNum - htobe32buf (packet + size, m_LastReceivedSequenceNumber >= 0 ? m_LastReceivedSequenceNumber : 0); + htobe32buf (packet + size, m_LastReceivedSequenceNumber >= 0 ? m_LastReceivedSequenceNumber : 0); size += 4; // ack Through packet[size] = 0; size++; // NACK count + packet[size] = 0; size++; // resend delay htobe16buf (packet + size, PACKET_FLAG_CLOSE | PACKET_FLAG_SIGNATURE_INCLUDED); size += 2; // flags - size_t signatureLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetSignatureLen (); + size_t signatureLen = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetSignatureLen (); htobe16buf (packet + size, signatureLen); // signature only size += 2; // options size uint8_t * signature = packet + size; @@ -670,7 +1109,7 @@ namespace stream m_LocalDestination.GetOwner ()->Sign (packet, size, signature); p->len = size; - m_Service.post (std::bind (&Stream::SendPacket, shared_from_this (), p)); + boost::asio::post (m_Service, std::bind (&Stream::SendPacket, shared_from_this (), p)); LogPrint (eLogDebug, "Streaming: FIN sent, sSID=", m_SendStreamID); } @@ -702,6 +1141,7 @@ namespace stream m_IsAckSendScheduled = false; m_AckSendTimer.cancel (); } + if (!packet->sendTime) packet->sendTime = i2p::util::GetMillisecondsSinceEpoch (); SendPackets (std::vector { packet }); bool isEmpty = m_SentPackets.empty (); m_SentPackets.insert (packet); @@ -717,6 +1157,7 @@ namespace stream { if (!m_RemoteLeaseSet) { + CancelRemoteLeaseChange (); UpdateCurrentRemoteLease (); if (!m_RemoteLeaseSet) { @@ -724,8 +1165,16 @@ namespace stream return; } } - if (!m_RoutingSession || !m_RoutingSession->GetOwner ()) // expired and detached - m_RoutingSession = m_LocalDestination.GetOwner ()->GetRoutingSession (m_RemoteLeaseSet, true); + if (!m_RoutingSession || m_RoutingSession->IsTerminated () || !m_RoutingSession->IsReadyToSend ()) // expired and detached or new session sent + { + m_RoutingSession = m_LocalDestination.GetOwner ()->GetRoutingSession (m_RemoteLeaseSet, true, !m_IsIncoming || m_SequenceNumber > 1); + if (!m_RoutingSession) + { + LogPrint (eLogError, "Streaming: Can't obtain routing session, sSID=", m_SendStreamID); + Terminate (); + return; + } + } if (!m_CurrentOutboundTunnel && m_RoutingSession) // first message to send { // try to get shared path first @@ -735,27 +1184,65 @@ namespace stream m_CurrentOutboundTunnel = routingPath->outboundTunnel; m_CurrentRemoteLease = routingPath->remoteLease; m_RTT = routingPath->rtt; - m_RTO = m_RTT*1.5; // TODO: implement it better } } - if (!m_CurrentOutboundTunnel || !m_CurrentOutboundTunnel->IsEstablished ()) - m_CurrentOutboundTunnel = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNewOutboundTunnel (m_CurrentOutboundTunnel); - if (!m_CurrentOutboundTunnel) - { - LogPrint (eLogError, "Streaming: No outbound tunnels in the pool, sSID=", m_SendStreamID); - return; - } auto ts = i2p::util::GetMillisecondsSinceEpoch (); - if (!m_CurrentRemoteLease || !m_CurrentRemoteLease->endDate || // excluded from LeaseSet - ts >= m_CurrentRemoteLease->endDate - i2p::data::LEASE_ENDDATE_THRESHOLD) + if (!m_CurrentRemoteLease || !m_CurrentRemoteLease->endDate) // excluded from LeaseSet + { + CancelRemoteLeaseChange (); UpdateCurrentRemoteLease (true); + } + if (m_RemoteLeaseChangeTime && m_IsRemoteLeaseChangeInProgress && ts > m_RemoteLeaseChangeTime + INITIAL_RTO) + { + LogPrint (eLogDebug, "Streaming: RemoteLease changed, set initial window size"); + CancelRemoteLeaseChange (); + m_CurrentRemoteLease = m_NextRemoteLease; + ResetWindowSize (); + } + auto currentRemoteLease = m_CurrentRemoteLease; + if (!m_IsRemoteLeaseChangeInProgress && m_RemoteLeaseSet && m_CurrentRemoteLease && ts >= m_CurrentRemoteLease->endDate - i2p::data::LEASE_ENDDATE_THRESHOLD) + { + auto leases = m_RemoteLeaseSet->GetNonExpiredLeases (false); + if (leases.size ()) + { + m_IsRemoteLeaseChangeInProgress = true; + UpdateCurrentRemoteLease (true); + m_NextRemoteLease = m_CurrentRemoteLease; + } + else + UpdateCurrentRemoteLease (true); + } if (m_CurrentRemoteLease && ts < m_CurrentRemoteLease->endDate + i2p::data::LEASE_ENDDATE_THRESHOLD) { - std::vector msgs; - for (auto it: packets) + bool freshTunnel = false; + if (!m_CurrentOutboundTunnel) { - auto msg = m_RoutingSession->WrapSingleMessage (m_LocalDestination.CreateDataMessage (it->GetBuffer (), it->GetLength (), m_Port)); + auto leaseRouter = i2p::data::netdb.FindRouter (m_CurrentRemoteLease->tunnelGateway); + m_CurrentOutboundTunnel = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNextOutboundTunnel (nullptr, + leaseRouter ? leaseRouter->GetCompatibleTransports (false) : (i2p::data::RouterInfo::CompatibleTransports)i2p::data::RouterInfo::eAllTransports); + freshTunnel = true; + } + else if (!m_CurrentOutboundTunnel->IsEstablished ()) + std::tie(m_CurrentOutboundTunnel, freshTunnel) = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNewOutboundTunnel (m_CurrentOutboundTunnel); + if (!m_CurrentOutboundTunnel) + { + LogPrint (eLogError, "Streaming: No outbound tunnels in the pool, sSID=", m_SendStreamID); + m_CurrentRemoteLease = nullptr; + return; + } + if (freshTunnel) + { + LogPrint (eLogDebug, "Streaming: OutboundTunnel changed, set initial window size"); + ResetWindowSize (); +// m_TunnelsChangeSequenceNumber = m_SequenceNumber; // should be determined more precisely + } + + std::vector msgs; + for (const auto& it: packets) + { + auto msg = m_RoutingSession->WrapSingleMessage (m_LocalDestination.CreateDataMessage ( + it->GetBuffer (), it->GetLength (), m_Port, !m_RoutingSession->IsRatchets (), it->IsSYN ())); msgs.push_back (i2p::tunnel::TunnelMessageBlock { i2p::tunnel::eDeliveryTypeTunnel, @@ -763,8 +1250,13 @@ namespace stream msg }); m_NumSentBytes += it->GetLength (); + if (m_IsRemoteLeaseChangeInProgress && !m_RemoteLeaseChangeTime) + { + m_RemoteLeaseChangeTime = ts; + m_CurrentRemoteLease = currentRemoteLease; // change it back before new lease is confirmed + } } - m_CurrentOutboundTunnel->SendTunnelDataMsg (msgs); + m_CurrentOutboundTunnel->SendTunnelDataMsgs (msgs); } else { @@ -776,15 +1268,15 @@ namespace stream void Stream::SendUpdatedLeaseSet () { - if (m_RoutingSession) + if (m_RoutingSession && !m_RoutingSession->IsTerminated ()) { if (m_RoutingSession->IsLeaseSetNonConfirmed ()) { auto ts = i2p::util::GetMillisecondsSinceEpoch (); - if (ts > m_RoutingSession->GetLeaseSetSubmissionTime () + i2p::garlic::LEASET_CONFIRMATION_TIMEOUT) + if (ts > m_RoutingSession->GetLeaseSetSubmissionTime () + i2p::garlic::LEASESET_CONFIRMATION_TIMEOUT) { // LeaseSet was not confirmed, should try other tunnels - LogPrint (eLogWarning, "Streaming: LeaseSet was not confirmed in ", i2p::garlic::LEASET_CONFIRMATION_TIMEOUT, " milliseconds. Trying to resubmit"); + LogPrint (eLogWarning, "Streaming: LeaseSet was not confirmed in ", i2p::garlic::LEASESET_CONFIRMATION_TIMEOUT, " milliseconds. Trying to resubmit"); m_RoutingSession->SetSharedRoutingPath (nullptr); m_CurrentOutboundTunnel = nullptr; m_CurrentRemoteLease = nullptr; @@ -797,76 +1289,255 @@ namespace stream SendQuickAck (); } } + else + SendQuickAck (); + } + + void Stream::ScheduleSend () + { + if (m_Status != eStreamStatusTerminated) + { + m_SendTimer.cancel (); + m_SendTimer.expires_from_now (boost::posix_time::microseconds( + SEND_INTERVAL + m_LocalDestination.GetRandom () % SEND_INTERVAL_VARIANCE)); + m_SendTimer.async_wait (std::bind (&Stream::HandleSendTimer, + shared_from_this (), std::placeholders::_1)); + } + } + + void Stream::HandleSendTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (m_LastSendTime && ts*1000 > m_LastSendTime*1000 + m_PacingTime) + { + if (m_PacingTime) + { + auto numPackets = std::lldiv (m_PacingTimeRem + ts*1000 - m_LastSendTime*1000, m_PacingTime); + m_NumPacketsToSend = numPackets.quot; + m_PacingTimeRem = numPackets.rem; + } + else + { + LogPrint (eLogError, "Streaming: pacing time is zero"); + m_NumPacketsToSend = 1; m_PacingTimeRem = 0; + } + m_IsSendTime = true; + if (m_WindowIncCounter && (m_WindowSize < MAX_WINDOW_SIZE || m_WindowDropTargetSize) && !m_SendBuffer.IsEmpty () && m_PacingTime > m_MinPacingTime && m_RTT <= m_SlowRTT) + { + float winSize = m_WindowSize; + if (m_WindowDropTargetSize) + winSize = m_WindowDropTargetSize; + float maxWinSize = MAX_WINDOW_SIZE; + if (m_LastWindowIncTime) + maxWinSize = (ts - m_LastWindowIncTime) / (m_RTT / MAX_WINDOW_SIZE_INC_PER_RTT) + winSize; + for (int i = 0; i < m_NumPacketsToSend; i++) + { + if (m_WindowIncCounter) + { + if (m_WindowDropTargetSize) + { + if (m_LastWindowDropSize && (m_LastWindowDropSize >= m_WindowDropTargetSize)) + m_WindowDropTargetSize += 1 - (1 / ((m_LastWindowDropSize + PREV_SPEED_KEEP_TIME_COEFF) / m_WindowDropTargetSize)); // some magic here + else if (m_LastWindowDropSize && (m_LastWindowDropSize < m_WindowDropTargetSize)) + m_WindowDropTargetSize += (m_WindowDropTargetSize - (m_LastWindowDropSize - PREV_SPEED_KEEP_TIME_COEFF)) / m_WindowDropTargetSize; // some magic here + else + m_WindowDropTargetSize += (m_WindowDropTargetSize - (1 - PREV_SPEED_KEEP_TIME_COEFF)) / m_WindowDropTargetSize; + if (m_WindowDropTargetSize > MAX_WINDOW_SIZE) m_WindowDropTargetSize = MAX_WINDOW_SIZE; + m_WindowIncCounter--; + if (m_WindowDropTargetSize >= maxWinSize) + { + m_WindowDropTargetSize = maxWinSize; + break; + } + } + else + { + if (m_LastWindowDropSize && (m_LastWindowDropSize >= m_WindowSize)) + m_WindowSize += 1 - (1 / ((m_LastWindowDropSize + PREV_SPEED_KEEP_TIME_COEFF) / m_WindowSize)); // some magic here + else if (m_LastWindowDropSize && (m_LastWindowDropSize < m_WindowSize)) + m_WindowSize += (m_WindowSize - (m_LastWindowDropSize - PREV_SPEED_KEEP_TIME_COEFF)) / m_WindowSize; // some magic here + else + m_WindowSize += (m_WindowSize - (1 - PREV_SPEED_KEEP_TIME_COEFF)) / m_WindowSize; + if (m_WindowSize > MAX_WINDOW_SIZE) m_WindowSize = MAX_WINDOW_SIZE; + m_WindowIncCounter--; + if (m_WindowSize >= maxWinSize) + { + m_WindowSize = maxWinSize; + break; + } + } + } + else + break; + } + m_LastWindowIncTime = ts; + UpdatePacingTime (); + } + else if (m_WindowIncCounter && m_WindowSize == MAX_WINDOW_SIZE && !m_SendBuffer.IsEmpty () && m_PacingTime > m_MinPacingTime) + { + m_WindowSizeTail = m_WindowSizeTail + m_WindowIncCounter; + if (m_WindowSizeTail > MAX_WINDOW_SIZE) m_WindowSizeTail = MAX_WINDOW_SIZE; + } + if (m_IsNAcked || m_IsResendNeeded || m_IsClientChoked) // resend packets + ResendPacket (); + else if (m_WindowSize > int(m_SentPackets.size ())) // send packets + SendBuffer (); + } + else // pass + ScheduleSend (); + } } void Stream::ScheduleResend () { - m_ResendTimer.cancel (); - // check for invalid value - if (m_RTO <= 0) m_RTO = INITIAL_RTO; - m_ResendTimer.expires_from_now (boost::posix_time::milliseconds(m_RTO)); - m_ResendTimer.async_wait (std::bind (&Stream::HandleResendTimer, - shared_from_this (), std::placeholders::_1)); + if (m_Status != eStreamStatusTerminated) + { + m_ResendTimer.cancel (); + // check for invalid value + if (m_RTO <= 0) m_RTO = INITIAL_RTO; + m_ResendTimer.expires_from_now (boost::posix_time::milliseconds(m_RTO)); + m_ResendTimer.async_wait (std::bind (&Stream::HandleResendTimer, + shared_from_this (), std::placeholders::_1)); + } } void Stream::HandleResendTimer (const boost::system::error_code& ecode) { if (ecode != boost::asio::error::operation_aborted) { - // check for resend attempts - if (m_NumResendAttempts >= MAX_NUM_RESEND_ATTEMPTS) - { - LogPrint (eLogWarning, "Streaming: packet was not ACKed after ", MAX_NUM_RESEND_ATTEMPTS, " attempts, terminate, rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID); - m_Status = eStreamStatusReset; - Close (); - return; - } + m_IsSendTime = true; + if (m_RTO > INITIAL_RTO) m_RTO = INITIAL_RTO; + m_SendTimer.cancel (); // if no ack's in RTO, disable fast retransmit + m_IsTimeOutResend = true; + m_IsNAcked = false; + m_IsResendNeeded = false; + m_NumPacketsToSend = 1; + ResendPacket (); // send one packet per RTO, waiting for ack + } + } + + void Stream::ResendPacket () + { + // check for resend attempts + if (m_IsIncoming && m_SequenceNumber == 1 && m_NumResendAttempts > 0) + { + LogPrint (eLogWarning, "Streaming: SYNACK packet was not ACKed after ", m_NumResendAttempts, " attempts, terminate, rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID); + m_Status = eStreamStatusReset; + Close (); + return; + } + if (m_NumResendAttempts >= MAX_NUM_RESEND_ATTEMPTS) + { + LogPrint (eLogWarning, "Streaming: packet was not ACKed after ", MAX_NUM_RESEND_ATTEMPTS, " attempts, terminate, rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID); + m_Status = eStreamStatusReset; + Close (); + return; + } - // collect packets to resend - auto ts = i2p::util::GetMillisecondsSinceEpoch (); - std::vector packets; + // collect packets to resend + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + std::vector packets; + if (m_IsNAcked) + { + for (auto it : m_NACKedPackets) + { + if (ts >= it->sendTime + m_RTO) + { + if (ts < it->sendTime + m_RTO*2) + it->resent = true; + else + it->resent = false; + it->sendTime = ts; + packets.push_back (it); + if ((int)packets.size () >= m_NumPacketsToSend) break; + } + } + } + else + { for (auto it : m_SentPackets) { if (ts >= it->sendTime + m_RTO) { + if (ts < it->sendTime + m_RTO*2) + it->resent = true; + else + it->resent = false; it->sendTime = ts; packets.push_back (it); + if ((int)packets.size () >= m_NumPacketsToSend) break; } } - - // select tunnels if necessary and send - if (packets.size () > 0) - { - m_NumResendAttempts++; - m_RTO *= 2; - switch (m_NumResendAttempts) - { - case 1: // congesion avoidance - m_WindowSize /= 2; - if (m_WindowSize < MIN_WINDOW_SIZE) m_WindowSize = MIN_WINDOW_SIZE; - break; - case 2: - m_RTO = INITIAL_RTO; // drop RTO to initial upon tunnels pair change first time - // no break here - case 4: - if (m_RoutingSession) m_RoutingSession->SetSharedRoutingPath (nullptr); - UpdateCurrentRemoteLease (); // pick another lease - LogPrint (eLogWarning, "Streaming: Another remote lease has been selected for stream with rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID); - break; - case 3: - // pick another outbound tunnel - if (m_RoutingSession) m_RoutingSession->SetSharedRoutingPath (nullptr); - m_CurrentOutboundTunnel = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNextOutboundTunnel (m_CurrentOutboundTunnel); - LogPrint (eLogWarning, "Streaming: Another outbound tunnel has been selected for stream with sSID=", m_SendStreamID); - break; - default: ; - } - SendPackets (packets); - } - ScheduleResend (); } + + // select tunnels if necessary and send + if (packets.size () > 0 && m_IsSendTime) + { + if (m_IsNAcked) m_NumResendAttempts = 1; + else if (m_IsTimeOutResend) m_NumResendAttempts++; + if (m_NumResendAttempts == 1 && m_RTO != INITIAL_RTO) + { + // loss-based CC + if (!m_IsWinDropped && LOSS_BASED_CONTROL_ENABLED && !m_IsClientChoked) + { + LogPrint (eLogDebug, "Streaming: Packet loss, reduce window size"); + ProcessWindowDrop (); + } + } + else if (m_IsTimeOutResend) + { + m_IsTimeOutResend = false; + m_RTO = INITIAL_RTO; // drop RTO to initial upon tunnels pair change + m_WindowDropTargetSize = INITIAL_WINDOW_SIZE; + m_LastWindowDropSize = 0; + m_WindowIncCounter = 0; + m_IsWinDropped = true; + m_IsFirstRttSample = true; + m_DropWindowDelaySequenceNumber = 0; + m_IsFirstACK = true; + m_LastACKRecieveTime = 0; + m_ACKRecieveInterval = m_AckDelay; + UpdatePacingTime (); + if (m_RoutingSession) m_RoutingSession->SetSharedRoutingPath (nullptr); + if (m_NumResendAttempts & 1) + { + // pick another outbound tunnel + m_CurrentOutboundTunnel = m_LocalDestination.GetOwner ()->GetTunnelPool ()->GetNextOutboundTunnel (m_CurrentOutboundTunnel); + LogPrint (eLogWarning, "Streaming: Resend #", m_NumResendAttempts, + ", another outbound tunnel has been selected for stream with sSID=", m_SendStreamID); + } + else + { + CancelRemoteLeaseChange (); + UpdateCurrentRemoteLease (); // pick another lease + LogPrint (eLogWarning, "Streaming: Resend #", m_NumResendAttempts, + ", another remote lease has been selected for stream with rSID=", m_RecvStreamID, ", sSID=", m_SendStreamID); + } + } + SendPackets (packets); + m_LastSendTime = ts; + m_IsSendTime = false; + if (m_IsNAcked || m_IsResendNeeded || m_IsClientChoked) ScheduleSend (); + } + else if (!m_IsClientChoked) + SendBuffer (); + if (!m_IsNAcked && !m_IsResendNeeded) ScheduleResend (); + if (m_IsClientChoked) ScheduleSend (); } + void Stream::ScheduleAck (int timeout) + { + if (m_IsAckSendScheduled) + m_AckSendTimer.cancel (); + m_IsAckSendScheduled = true; + if (timeout < MIN_SEND_ACK_TIMEOUT) timeout = MIN_SEND_ACK_TIMEOUT; + m_AckSendTimer.expires_from_now (boost::posix_time::milliseconds(timeout)); + m_AckSendTimer.async_wait (std::bind (&Stream::HandleAckSendTimer, + shared_from_this (), std::placeholders::_1)); + } + void Stream::HandleAckSendTimer (const boost::system::error_code& ecode) { if (m_IsAckSendScheduled) @@ -882,9 +1553,13 @@ namespace stream { if (m_RoutingSession && m_RoutingSession->IsLeaseSetNonConfirmed ()) { - // seems something went wrong and we should re-select tunnels - m_CurrentOutboundTunnel = nullptr; - m_CurrentRemoteLease = nullptr; + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + if (ts > m_RoutingSession->GetLeaseSetSubmissionTime () + i2p::garlic::LEASESET_CONFIRMATION_TIMEOUT) + { + // seems something went wrong and we should re-select tunnels + m_CurrentOutboundTunnel = nullptr; + m_CurrentRemoteLease = nullptr; + } } SendQuickAck (); } @@ -894,20 +1569,41 @@ namespace stream void Stream::UpdateCurrentRemoteLease (bool expired) { + bool isLeaseChanged = true; if (!m_RemoteLeaseSet || m_RemoteLeaseSet->IsExpired ()) { - m_RemoteLeaseSet = m_LocalDestination.GetOwner ()->FindLeaseSet (m_RemoteIdentity->GetIdentHash ()); - if (!m_RemoteLeaseSet) + auto remoteLeaseSet = m_LocalDestination.GetOwner ()->FindLeaseSet (m_RemoteIdentity->GetIdentHash ()); + if (!remoteLeaseSet) { - LogPrint (eLogWarning, "Streaming: LeaseSet ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " not found"); - m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); // try to request for a next attempt + LogPrint (eLogWarning, "Streaming: LeaseSet ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), m_RemoteLeaseSet ? " expired" : " not found"); + if (!m_IsIncoming) // outgoing + { + if (m_RemoteLeaseSet && m_RemoteLeaseSet->IsPublishedEncrypted ()) + { + m_LocalDestination.GetOwner ()->RequestDestinationWithEncryptedLeaseSet ( + std::make_shared(m_RemoteIdentity)); + return; // we keep m_RemoteLeaseSet for possible next request + } + else + { + m_RemoteLeaseSet = nullptr; + m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); // try to request for a next attempt + } + } + else // incoming + { + // just close the socket without sending FIN or RST + m_Status = eStreamStatusClosed; + AsyncClose (); + } } else { // LeaseSet updated + m_RemoteLeaseSet = remoteLeaseSet; m_RemoteIdentity = m_RemoteLeaseSet->GetIdentity (); m_TransientVerifier = m_RemoteLeaseSet->GetTransientVerifier (); - } + } } if (m_RemoteLeaseSet) { @@ -918,11 +1614,11 @@ namespace stream { expired = false; // time to request - if (m_RemoteLeaseSet->GetOrigStoreType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) + if (m_RemoteLeaseSet->IsPublishedEncrypted ()) m_LocalDestination.GetOwner ()->RequestDestinationWithEncryptedLeaseSet ( std::make_shared(m_RemoteIdentity)); else - m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); + m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); leases = m_RemoteLeaseSet->GetNonExpiredLeases (true); // then with threshold } if (!leases.empty ()) @@ -940,10 +1636,15 @@ namespace stream } if (!updated) { - uint32_t i = rand () % leases.size (); + uint32_t i = m_LocalDestination.GetRandom () % leases.size (); if (m_CurrentRemoteLease && leases[i]->tunnelID == m_CurrentRemoteLease->tunnelID) + { // make sure we don't select previous - i = (i + 1) % leases.size (); // if so, pick next + if (leases.size () > 1) + i = (i + 1) % leases.size (); // if so, pick next + else + isLeaseChanged = false; + } m_CurrentRemoteLease = leases[i]; } } @@ -960,12 +1661,92 @@ namespace stream LogPrint (eLogWarning, "Streaming: Remote LeaseSet not found"); m_CurrentRemoteLease = nullptr; } + if (isLeaseChanged && !m_IsRemoteLeaseChangeInProgress) + { + LogPrint (eLogDebug, "Streaming: RemoteLease changed, set initial window size"); + ResetWindowSize (); + } + } + + void Stream::ResetRoutingPath () + { + m_CurrentOutboundTunnel = nullptr; + m_CurrentRemoteLease = nullptr; + m_RTT = INITIAL_RTT; + m_RTO = INITIAL_RTO; + if (m_RoutingSession) + m_RoutingSession->SetSharedRoutingPath (nullptr); // TODO: count failures + } + + void Stream::UpdatePacingTime () + { + if (m_WindowDropTargetSize) + m_PacingTime = std::round (m_RTT*1000/m_WindowDropTargetSize); + else + m_PacingTime = std::round (m_RTT*1000/m_WindowSize); + if (m_MinPacingTime && m_PacingTime < m_MinPacingTime) + m_PacingTime = m_MinPacingTime; + } + + void Stream::ProcessWindowDrop () + { + if (m_WindowDropTargetSize) + m_WindowDropTargetSize = (m_WindowDropTargetSize / 2) * 0.75; // congestion window size and -25% to drain queue + else + { + if (m_WindowSize < m_LastWindowDropSize) + { + m_LastWindowDropSize = std::max ((m_WindowSize - MAX_WINDOW_SIZE_INC_PER_RTT), (m_WindowSize - (m_LastWindowDropSize - m_WindowSize))); + if (m_LastWindowDropSize < MIN_WINDOW_SIZE) m_LastWindowDropSize = MIN_WINDOW_SIZE; + } + else + { + m_LastWindowDropSize = std::max ((m_WindowSize - MAX_WINDOW_SIZE_INC_PER_RTT), ((m_LastWindowDropSize + m_WindowSize + m_WindowSizeTail) / 2)); + if (m_LastWindowDropSize > MAX_WINDOW_SIZE) m_LastWindowDropSize = MAX_WINDOW_SIZE; + } + m_WindowDropTargetSize = m_LastWindowDropSize * 0.75; // -25% to drain queue + } + if (m_WindowDropTargetSize < MIN_WINDOW_SIZE) + m_WindowDropTargetSize = MIN_WINDOW_SIZE; + m_WindowIncCounter = 0; // disable window growth + m_DropWindowDelaySequenceNumber = m_SequenceNumber + int(m_WindowDropTargetSize); + m_IsFirstACK = true; // ignore first RTT sample + m_IsWinDropped = true; // don't drop window twice + m_WindowSizeTail = 0; + UpdatePacingTime (); + } + + void Stream::ResetWindowSize () + { + m_RTO = INITIAL_RTO; + if (!m_IsClientChoked) + { + if (m_WindowSize > INITIAL_WINDOW_SIZE) + { + m_WindowDropTargetSize = (float)INITIAL_WINDOW_SIZE; + m_IsWinDropped = true; + } + else + m_WindowSize = INITIAL_WINDOW_SIZE; + } + m_LastWindowDropSize = 0; + m_WindowIncCounter = 0; + m_IsFirstRttSample = true; + m_IsFirstACK = true; + m_WindowSizeTail = 0; + UpdatePacingTime (); + } + + void Stream::CancelRemoteLeaseChange () + { + m_RemoteLeaseChangeTime = 0; + m_IsRemoteLeaseChangeInProgress = false; } StreamingDestination::StreamingDestination (std::shared_ptr owner, uint16_t localPort, bool gzip): m_Owner (owner), m_LocalPort (localPort), m_Gzip (gzip), - m_LastIncomingReceiveStreamID (0), - m_PendingIncomingTimer (m_Owner->GetService ()) + m_PendingIncomingTimer (m_Owner->GetService ()), + m_LastCleanupTime (i2p::util::GetSecondsSinceEpoch ()) { } @@ -990,7 +1771,11 @@ namespace stream m_PendingIncomingStreams.clear (); { std::unique_lock l(m_StreamsMutex); + for (auto it: m_Streams) + it.second->Terminate (false); // we delete here m_Streams.clear (); + m_IncomingStreams.clear (); + m_LastStream = nullptr; } } @@ -999,9 +1784,23 @@ namespace stream uint32_t sendStreamID = packet->GetSendStreamID (); if (sendStreamID) { - auto it = m_Streams.find (sendStreamID); - if (it != m_Streams.end ()) - it->second->HandleNextPacket (packet); + if (!m_LastStream || sendStreamID != m_LastStream->GetRecvStreamID ()) + { + auto it = m_Streams.find (sendStreamID); + if (it != m_Streams.end ()) + m_LastStream = it->second; + else + m_LastStream = nullptr; + } + if (m_LastStream) + m_LastStream->HandleNextPacket (packet); + else if (packet->IsEcho () && m_Owner->IsStreamingAnswerPings ()) + { + // ping + LogPrint (eLogInfo, "Streaming: Ping received sSID=", sendStreamID); + auto s = std::make_shared (m_Owner->GetService (), *this); + s->HandlePing (packet); + } else { LogPrint (eLogInfo, "Streaming: Unknown stream sSID=", sendStreamID); @@ -1010,21 +1809,39 @@ namespace stream } else { + if (packet->IsEcho ()) + { + // pong + LogPrint (eLogInfo, "Streaming: Pong received rSID=", packet->GetReceiveStreamID ()); + DeletePacket (packet); + return; + } if (packet->IsSYN () && !packet->GetSeqn ()) // new incoming stream { uint32_t receiveStreamID = packet->GetReceiveStreamID (); - if (receiveStreamID == m_LastIncomingReceiveStreamID) + auto it1 = m_IncomingStreams.find (receiveStreamID); + if (it1 != m_IncomingStreams.end ()) { // already pending LogPrint(eLogWarning, "Streaming: Incoming streaming with rSID=", receiveStreamID, " already exists"); + it1->second->ResetRoutingPath (); // Ack was not delivered, changing path DeletePacket (packet); // drop it, because previous should be connected return; } - auto incomingStream = CreateNewIncomingStream (); + if (m_Owner->GetStreamingMaxConcurrentStreams () > 0 && (int)m_Streams.size () > m_Owner->GetStreamingMaxConcurrentStreams ()) + { + LogPrint(eLogWarning, "Streaming: Number of streams exceeds ", m_Owner->GetStreamingMaxConcurrentStreams ()); + DeletePacket (packet); + return; + } + auto incomingStream = CreateNewIncomingStream (receiveStreamID); incomingStream->HandleNextPacket (packet); // SYN - auto ident = incomingStream->GetRemoteIdentity(); - - m_LastIncomingReceiveStreamID = receiveStreamID; + if (!incomingStream->GetRemoteLeaseSet ()) + { + LogPrint (eLogWarning, "Streaming: No remote LeaseSet for incoming stream. Terminated"); + incomingStream->Terminate (); // can't send FIN anyway + return; + } // handle saved packets if any { @@ -1062,13 +1879,13 @@ namespace stream else // follow on packet without SYN { uint32_t receiveStreamID = packet->GetReceiveStreamID (); - for (auto& it: m_Streams) - if (it.second->GetSendStreamID () == receiveStreamID) - { - // found - it.second->HandleNextPacket (packet); - return; - } + auto it1 = m_IncomingStreams.find (receiveStreamID); + if (it1 != m_IncomingStreams.end ()) + { + // found + it1->second->HandleNextPacket (packet); + return; + } // save follow on packet auto it = m_SavedPackets.find (receiveStreamID); if (it != m_SavedPackets.end ()) @@ -1101,15 +1918,22 @@ namespace stream { auto s = std::make_shared (m_Owner->GetService (), *this, remote, port); std::unique_lock l(m_StreamsMutex); - m_Streams[s->GetRecvStreamID ()] = s; + m_Streams.emplace (s->GetRecvStreamID (), s); return s; } - std::shared_ptr StreamingDestination::CreateNewIncomingStream () + void StreamingDestination::SendPing (std::shared_ptr remote) + { + auto s = std::make_shared (m_Owner->GetService (), *this, remote, 0); + s->SendPing (); + } + + std::shared_ptr StreamingDestination::CreateNewIncomingStream (uint32_t receiveStreamID) { auto s = std::make_shared (m_Owner->GetService (), *this); std::unique_lock l(m_StreamsMutex); - m_Streams[s->GetRecvStreamID ()] = s; + m_Streams.emplace (s->GetRecvStreamID (), s); + m_IncomingStreams.emplace (receiveStreamID, s); return s; } @@ -1118,17 +1942,40 @@ namespace stream if (stream) { std::unique_lock l(m_StreamsMutex); - auto it = m_Streams.find (stream->GetRecvStreamID ()); - if (it != m_Streams.end ()) - m_Streams.erase (it); + m_Streams.erase (stream->GetRecvStreamID ()); + if (stream->IsIncoming ()) + m_IncomingStreams.erase (stream->GetSendStreamID ()); + if (m_LastStream == stream) m_LastStream = nullptr; } + auto ts = i2p::util::GetSecondsSinceEpoch (); + if (m_Streams.empty () || ts > m_LastCleanupTime + STREAMING_DESTINATION_POOLS_CLEANUP_INTERVAL) + { + m_PacketsPool.CleanUp (); + m_I2NPMsgsPool.CleanUp (); + m_LastCleanupTime = ts; + } + } + + bool StreamingDestination::DeleteStream (uint32_t recvStreamID) + { + auto it = m_Streams.find (recvStreamID); + if (it == m_Streams.end ()) + return false; + auto s = it->second; + boost::asio::post (m_Owner->GetService (), [this, s] () + { + s->Close (); // try to send FIN + s->Terminate (false); + DeleteStream (s); + }); + return true; } void StreamingDestination::SetAcceptor (const Acceptor& acceptor) { m_Acceptor = acceptor; // we must set it immediately for IsAcceptorSet auto s = shared_from_this (); - m_Owner->GetService ().post([s](void) + boost::asio::post (m_Owner->GetService (), [s](void) { // take care about incoming queue for (auto& it: s->m_PendingIncomingStreams) @@ -1147,10 +1994,10 @@ namespace stream void StreamingDestination::AcceptOnce (const Acceptor& acceptor) { - m_Owner->GetService ().post([acceptor, this](void) + boost::asio::post (m_Owner->GetService (), [acceptor, this](void) { if (!m_PendingIncomingStreams.empty ()) - { + { acceptor (m_PendingIncomingStreams.front ()); m_PendingIncomingStreams.pop_front (); if (m_PendingIncomingStreams.empty ()) @@ -1170,6 +2017,26 @@ namespace stream acceptor (stream); } + std::shared_ptr StreamingDestination::AcceptStream (int timeout) + { + std::shared_ptr stream; + std::condition_variable streamAccept; + std::mutex streamAcceptMutex; + std::unique_lock l(streamAcceptMutex); + AcceptOnce ( + [&streamAccept, &streamAcceptMutex, &stream](std::shared_ptr s) + { + stream = s; + std::unique_lock l(streamAcceptMutex); + streamAccept.notify_all (); + }); + if (timeout) + streamAccept.wait_for (l, std::chrono::seconds (timeout)); + else + streamAccept.wait (l); + return stream; + } + void StreamingDestination::HandlePendingIncomingTimer (const boost::system::error_code& ecode) { if (ecode != boost::asio::error::operation_aborted) @@ -1193,17 +2060,20 @@ namespace stream DeletePacket (uncompressed); } - std::shared_ptr StreamingDestination::CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort) + std::shared_ptr StreamingDestination::CreateDataMessage ( + const uint8_t * payload, size_t len, uint16_t toPort, bool checksum, bool gzip) { - auto msg = NewI2NPShortMessage (); - if (!m_Gzip || len <= i2p::stream::COMPRESSION_THRESHOLD_SIZE) - m_Deflator.SetCompressionLevel (Z_NO_COMPRESSION); - else - m_Deflator.SetCompressionLevel (Z_DEFAULT_COMPRESSION); + size_t size; + auto msg = (len <= STREAMING_MTU_RATCHETS) ? m_I2NPMsgsPool.AcquireShared () : NewI2NPMessage (); uint8_t * buf = msg->GetPayload (); buf += 4; // reserve for lengthlength msg->len += 4; - size_t size = m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len); + + if (m_Gzip || gzip) + size = m_Deflator.Deflate (payload, len, buf, msg->maxLen - msg->len); + else + size = i2p::data::GzipNoCompression (payload, len, buf, msg->maxLen - msg->len); + if (size) { htobe32buf (msg->GetPayload (), size); // length @@ -1211,12 +2081,22 @@ namespace stream htobe16buf (buf + 6, toPort); // destination port buf[9] = i2p::client::PROTOCOL_TYPE_STREAMING; // streaming protocol msg->len += size; - msg->FillI2NPMessageHeader (eI2NPData); + msg->FillI2NPMessageHeader (eI2NPData, 0, checksum); } else msg = nullptr; return msg; } + uint32_t StreamingDestination::GetRandom () + { + if (m_Owner) + { + auto pool = m_Owner->GetTunnelPool (); + if (pool) + return pool->GetRng ()(); + } + return rand (); + } } } diff --git a/libi2pd/Streaming.h b/libi2pd/Streaming.h index ba52464f..570fdd1d 100644 --- a/libi2pd/Streaming.h +++ b/libi2pd/Streaming.h @@ -1,9 +1,17 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef STREAMING_H__ #define STREAMING_H__ #include #include -#include +#include #include #include #include @@ -11,6 +19,7 @@ #include #include #include "Base.h" +#include "Gzip.h" #include "I2PEndian.h" #include "Identity.h" #include "LeaseSet.h" @@ -41,28 +50,48 @@ namespace stream const uint16_t PACKET_FLAG_OFFLINE_SIGNATURE = 0x0800; const size_t STREAMING_MTU = 1730; + const size_t STREAMING_MTU_RATCHETS = 1812; +#if OPENSSL_PQ + const size_t MAX_PACKET_SIZE = 8192; +#else const size_t MAX_PACKET_SIZE = 4096; +#endif const size_t COMPRESSION_THRESHOLD_SIZE = 66; - const int MAX_NUM_RESEND_ATTEMPTS = 6; - const int WINDOW_SIZE = 6; // in messages - const int MIN_WINDOW_SIZE = 1; - const int MAX_WINDOW_SIZE = 128; - const int INITIAL_RTT = 8000; // in milliseconds + const int MAX_NUM_RESEND_ATTEMPTS = 10; + const int INITIAL_WINDOW_SIZE = 10; + const int MIN_WINDOW_SIZE = 3; + const int MAX_WINDOW_SIZE = 512; + const int MAX_WINDOW_SIZE_INC_PER_RTT = 16; + const double RTT_EWMA_ALPHA = 0.25; + const double SLOWRTT_EWMA_ALPHA = 0.05; + const double PREV_SPEED_KEEP_TIME_COEFF = 0.35; // 0.1 - 1 // how long will the window size stay around the previous drop level, less is longer + const int MIN_RTO = 20; // in milliseconds + const int INITIAL_RTT = 1500; // in milliseconds const int INITIAL_RTO = 9000; // in milliseconds + const int INITIAL_PACING_TIME = 1000 * INITIAL_RTT / INITIAL_WINDOW_SIZE; // in microseconds + const int MIN_SEND_ACK_TIMEOUT = 2; // in milliseconds const int SYN_TIMEOUT = 200; // how long we wait for SYN after follow-on, in milliseconds - const size_t MAX_PENDING_INCOMING_BACKLOG = 128; + const size_t MAX_PENDING_INCOMING_BACKLOG = 1024; const int PENDING_INCOMING_TIMEOUT = 10; // in seconds - const int MAX_RECEIVE_TIMEOUT = 30; // in seconds - + const int MAX_RECEIVE_TIMEOUT = 20; // in seconds + const uint16_t DELAY_CHOKING = 60000; // in milliseconds + const uint64_t SEND_INTERVAL = 10000; // in microseconds + const uint64_t SEND_INTERVAL_VARIANCE = 2000; // in microseconds + const uint64_t REQUEST_IMMEDIATE_ACK_INTERVAL = 7500; // in milliseconds + const uint64_t REQUEST_IMMEDIATE_ACK_INTERVAL_VARIANCE = 3200; // in milliseconds + const bool LOSS_BASED_CONTROL_ENABLED = 1; // 0/1 + const uint64_t STREAMING_DESTINATION_POOLS_CLEANUP_INTERVAL = 646; // in seconds + struct Packet { size_t len, offset; uint8_t buf[MAX_PACKET_SIZE]; uint64_t sendTime; + bool resent; - Packet (): len (0), offset (0), sendTime (0) {}; + Packet (): len (0), offset (0), sendTime (0), resent (false) {}; uint8_t * GetBuffer () { return buf + offset; }; - size_t GetLength () const { return len - offset; }; + size_t GetLength () const { return len > offset ? len - offset : 0; }; uint32_t GetSendStreamID () const { return bufbe32toh (buf); }; uint32_t GetReceiveStreamID () const { return bufbe32toh (buf + 4); }; @@ -70,6 +99,7 @@ namespace stream uint32_t GetAckThrough () const { return bufbe32toh (buf + 12); }; uint8_t GetNACKCount () const { return buf[16]; }; uint32_t GetNACK (int i) const { return bufbe32toh (buf + 17 + 4 * i); }; + const uint8_t * GetNACKs () const { return buf + 17; }; const uint8_t * GetOption () const { return buf + 17 + GetNACKCount ()*4 + 3; }; // 3 = resendDelay + flags uint16_t GetFlags () const { return bufbe16toh (GetOption () - 2); }; uint16_t GetOptionSize () const { return bufbe16toh (GetOption ()); }; @@ -78,6 +108,7 @@ namespace stream bool IsSYN () const { return GetFlags () & PACKET_FLAG_SYNCHRONIZE; }; bool IsNoAck () const { return GetFlags () & PACKET_FLAG_NO_ACK; }; + bool IsEcho () const { return GetFlags () & PACKET_FLAG_ECHO; }; }; struct PacketCmp @@ -101,6 +132,11 @@ namespace stream buf = new uint8_t[len]; memcpy (buf, b, len); } + SendBuffer (size_t l): // create empty buffer + len(l), offset (0) + { + buf = new uint8_t[len]; + } ~SendBuffer () { delete[] buf; @@ -118,7 +154,7 @@ namespace stream SendBufferQueue (): m_Size (0) {}; ~SendBufferQueue () { CleanUp (); }; - void Add (const uint8_t * buf, size_t len, SendHandler handler); + void Add (std::shared_ptr&& buf); size_t Get (uint8_t * buf, size_t len); size_t GetSize () const { return m_Size; }; bool IsEmpty () const { return m_Buffers.empty (); }; @@ -136,7 +172,8 @@ namespace stream eStreamStatusOpen, eStreamStatusReset, eStreamStatusClosing, - eStreamStatusClosed + eStreamStatusClosed, + eStreamStatusTerminated }; class StreamingDestination; @@ -144,9 +181,9 @@ namespace stream { public: - Stream (boost::asio::io_service& service, StreamingDestination& local, + Stream (boost::asio::io_context& service, StreamingDestination& local, std::shared_ptr remote, int port = 0); // outgoing - Stream (boost::asio::io_service& service, StreamingDestination& local); // incoming + Stream (boost::asio::io_context& service, StreamingDestination& local); // incoming ~Stream (); uint32_t GetSendStreamID () const { return m_SendStreamID; }; @@ -155,18 +192,23 @@ namespace stream std::shared_ptr GetRemoteIdentity () const { return m_RemoteIdentity; }; bool IsOpen () const { return m_Status == eStreamStatusOpen; }; bool IsEstablished () const { return m_SendStreamID; }; + bool IsIncoming () const { return m_IsIncoming; }; StreamStatus GetStatus () const { return m_Status; }; StreamingDestination& GetLocalDestination () { return m_LocalDestination; }; + void ResetRoutingPath (); void HandleNextPacket (Packet * packet); + void HandlePing (Packet * packet); size_t Send (const uint8_t * buf, size_t len); void AsyncSend (const uint8_t * buf, size_t len, SendHandler handler); + void SendPing (); template void AsyncReceive (const Buffer& buffer, ReceiveHandler handler, int timeout = 0); size_t ReadSome (uint8_t * buf, size_t len) { return ConcatenatePackets (buf, len); }; + size_t Receive (uint8_t * buf, size_t len, int timeout); - void AsyncClose() { m_Service.post(std::bind(&Stream::Close, shared_from_this())); }; + void AsyncClose() { boost::asio::post(m_Service, std::bind(&Stream::Close, shared_from_this())); }; /** only call close from destination thread, use Stream::AsyncClose for other threads */ void Close (); @@ -180,8 +222,7 @@ namespace stream int GetWindowSize () const { return m_WindowSize; }; int GetRTT () const { return m_RTT; }; - /** don't call me */ - void Terminate (); + void Terminate (bool deleteFromDestination = true); private: @@ -203,38 +244,70 @@ namespace stream void UpdateCurrentRemoteLease (bool expired = false); template - void HandleReceiveTimer (const boost::system::error_code& ecode, const Buffer& buffer, ReceiveHandler handler, int remainingTimeout); + void HandleReceiveTimer (const boost::system::error_code& ecode, Buffer& buffer, ReceiveHandler handler, int remainingTimeout); + void ScheduleSend (); + void HandleSendTimer (const boost::system::error_code& ecode); void ScheduleResend (); void HandleResendTimer (const boost::system::error_code& ecode); + void ResendPacket (); + void ScheduleAck (int timeout); void HandleAckSendTimer (const boost::system::error_code& ecode); + void UpdatePacingTime (); + void ProcessWindowDrop (); + void ResetWindowSize (); + void CancelRemoteLeaseChange (); + private: - boost::asio::io_service& m_Service; + boost::asio::io_context& m_Service; uint32_t m_SendStreamID, m_RecvStreamID, m_SequenceNumber; + uint32_t m_DropWindowDelaySequenceNumber; + uint32_t m_TunnelsChangeSequenceNumber; int32_t m_LastReceivedSequenceNumber; + int32_t m_PreviousReceivedSequenceNumber; + int32_t m_LastConfirmedReceivedSequenceNumber; // for limit inbound speed StreamStatus m_Status; + bool m_IsIncoming; bool m_IsAckSendScheduled; + bool m_IsNAcked; + bool m_IsFirstACK; + bool m_IsResendNeeded; + bool m_IsFirstRttSample; + bool m_IsSendTime; + bool m_IsWinDropped; + bool m_IsClientChoked; + bool m_IsTimeOutResend; + bool m_IsImmediateAckRequested; + bool m_IsRemoteLeaseChangeInProgress; + bool m_DoubleWinIncCounter; StreamingDestination& m_LocalDestination; std::shared_ptr m_RemoteIdentity; std::shared_ptr m_TransientVerifier; // in case of offline key std::shared_ptr m_RemoteLeaseSet; std::shared_ptr m_RoutingSession; std::shared_ptr m_CurrentRemoteLease; + std::shared_ptr m_NextRemoteLease; std::shared_ptr m_CurrentOutboundTunnel; std::queue m_ReceiveQueue; std::set m_SavedPackets; std::set m_SentPackets; - boost::asio::deadline_timer m_ReceiveTimer, m_ResendTimer, m_AckSendTimer; + std::set m_NACKedPackets; + boost::asio::deadline_timer m_ReceiveTimer, m_SendTimer, m_ResendTimer, m_AckSendTimer; size_t m_NumSentBytes, m_NumReceivedBytes; uint16_t m_Port; - std::mutex m_SendBufferMutex; SendBufferQueue m_SendBuffer; - int m_WindowSize, m_RTT, m_RTO, m_AckDelay; - uint64_t m_LastWindowSizeIncreaseTime; - int m_NumResendAttempts; + double m_RTT, m_SlowRTT, m_SlowRTT2; + float m_WindowSize, m_LastWindowDropSize, m_WindowDropTargetSize; + int m_WindowIncCounter, m_RTO, m_AckDelay, m_PrevRTTSample, m_WindowSizeTail; + double m_Jitter; + uint64_t m_MinPacingTime, m_PacingTime, m_PacingTimeRem, // microseconds + m_LastSendTime, m_LastACKRecieveTime, m_ACKRecieveInterval, m_RemoteLeaseChangeTime, m_LastWindowIncTime; // milliseconds + uint64_t m_LastACKSendTime, m_PacketACKInterval, m_PacketACKIntervalRem; // for limit inbound speed + int m_NumResendAttempts, m_NumPacketsToSend; + size_t m_MTU; }; class StreamingDestination: public std::enable_shared_from_this @@ -243,34 +316,39 @@ namespace stream typedef std::function)> Acceptor; - StreamingDestination (std::shared_ptr owner, uint16_t localPort = 0, bool gzip = true); + StreamingDestination (std::shared_ptr owner, uint16_t localPort = 0, bool gzip = false); ~StreamingDestination (); void Start (); void Stop (); std::shared_ptr CreateNewOutgoingStream (std::shared_ptr remote, int port = 0); + void SendPing (std::shared_ptr remote); void DeleteStream (std::shared_ptr stream); + bool DeleteStream (uint32_t recvStreamID); + size_t GetNumStreams () const { return m_Streams.size (); }; void SetAcceptor (const Acceptor& acceptor); void ResetAcceptor (); bool IsAcceptorSet () const { return m_Acceptor != nullptr; }; void AcceptOnce (const Acceptor& acceptor); + void AcceptOnceAcceptor (std::shared_ptr stream, Acceptor acceptor, Acceptor prev); + std::shared_ptr AcceptStream (int timeout = 0); // sync std::shared_ptr GetOwner () const { return m_Owner; }; void SetOwner (std::shared_ptr owner) { m_Owner = owner; }; uint16_t GetLocalPort () const { return m_LocalPort; }; void HandleDataMessagePayload (const uint8_t * buf, size_t len); - std::shared_ptr CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort); + std::shared_ptr CreateDataMessage (const uint8_t * payload, size_t len, uint16_t toPort, bool checksum = true, bool gzip = false); Packet * NewPacket () { return m_PacketsPool.Acquire(); } void DeletePacket (Packet * p) { return m_PacketsPool.Release(p); } + uint32_t GetRandom (); - - void AcceptOnceAcceptor (std::shared_ptr stream, Acceptor acceptor, Acceptor prev); + private: void HandleNextPacket (Packet * packet); - std::shared_ptr CreateNewIncomingStream (); + std::shared_ptr CreateNewIncomingStream (uint32_t receiveStreamID); void HandlePendingIncomingTimer (const boost::system::error_code& ecode); private: @@ -279,15 +357,18 @@ namespace stream uint16_t m_LocalPort; bool m_Gzip; // gzip compression of data messages std::mutex m_StreamsMutex; - std::map > m_Streams; // sendStreamID->stream + std::unordered_map > m_Streams; // sendStreamID->stream + std::unordered_map > m_IncomingStreams; // receiveStreamID->stream + std::shared_ptr m_LastStream; Acceptor m_Acceptor; - uint32_t m_LastIncomingReceiveStreamID; std::list > m_PendingIncomingStreams; boost::asio::deadline_timer m_PendingIncomingTimer; - std::map > m_SavedPackets; // receiveStreamID->packets, arrived before SYN + std::unordered_map > m_SavedPackets; // receiveStreamID->packets, arrived before SYN i2p::util::MemoryPool m_PacketsPool; - + i2p::util::MemoryPool > m_I2NPMsgsPool; + uint64_t m_LastCleanupTime; // in seconds + public: i2p::data::GzipInflator m_Inflator; @@ -303,7 +384,7 @@ namespace stream void Stream::AsyncReceive (const Buffer& buffer, ReceiveHandler handler, int timeout) { auto s = shared_from_this(); - m_Service.post ([s, buffer, handler, timeout](void) + boost::asio::post (m_Service, [s, buffer, handler, timeout](void) { if (!s->m_ReceiveQueue.empty () || s->m_Status == eStreamStatusReset) s->HandleReceiveTimer (boost::asio::error::make_error_code (boost::asio::error::operation_aborted), buffer, handler, 0); @@ -312,20 +393,19 @@ namespace stream int t = (timeout > MAX_RECEIVE_TIMEOUT) ? MAX_RECEIVE_TIMEOUT : timeout; s->m_ReceiveTimer.expires_from_now (boost::posix_time::seconds(t)); int left = timeout - t; - auto self = s->shared_from_this(); - self->m_ReceiveTimer.async_wait ( - [self, buffer, handler, left](const boost::system::error_code & ec) + s->m_ReceiveTimer.async_wait ( + [s, buffer, handler, left](const boost::system::error_code & ec) { - self->HandleReceiveTimer(ec, buffer, handler, left); + s->HandleReceiveTimer(ec, buffer, handler, left); }); } }); } template - void Stream::HandleReceiveTimer (const boost::system::error_code& ecode, const Buffer& buffer, ReceiveHandler handler, int remainingTimeout) + void Stream::HandleReceiveTimer (const boost::system::error_code& ecode, Buffer& buffer, ReceiveHandler handler, int remainingTimeout) { - size_t received = ConcatenatePackets (boost::asio::buffer_cast(buffer), boost::asio::buffer_size(buffer)); + size_t received = ConcatenatePackets ((uint8_t *)buffer.data (), buffer.size ()); if (received > 0) handler (boost::system::error_code (), received); else if (ecode == boost::asio::error::operation_aborted) @@ -343,7 +423,7 @@ namespace stream handler (boost::asio::error::make_error_code (boost::asio::error::timed_out), received); else { - // itermediate iterrupt + // itermediate interrupt SendUpdatedLeaseSet (); // send our leaseset if applicable AsyncReceive (buffer, handler, remainingTimeout); } diff --git a/libi2pd/Tag.h b/libi2pd/Tag.h index 03e3bc06..30b7708d 100644 --- a/libi2pd/Tag.h +++ b/libi2pd/Tag.h @@ -1,96 +1,113 @@ -#ifndef TAG_H__ -#define TAG_H__ - /* -* Copyright (c) 2013-2017, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * * See full license text in LICENSE file at top of project tree */ +#ifndef TAG_H__ +#define TAG_H__ + #include #include #include +#include +#include #include "Base.h" -namespace i2p { -namespace data { - -template -class Tag +namespace i2p { - BOOST_STATIC_ASSERT_MSG(sz % 8 == 0, "Tag size must be multiple of 8 bytes"); - -public: - - Tag () = default; - Tag (const uint8_t * buf) { memcpy (m_Buf, buf, sz); } - - bool operator== (const Tag& other) const { return !memcmp (m_Buf, other.m_Buf, sz); } - bool operator!= (const Tag& other) const { return !(*this == other); } - bool operator< (const Tag& other) const { return memcmp (m_Buf, other.m_Buf, sz) < 0; } - - uint8_t * operator()() { return m_Buf; } - const uint8_t * operator()() const { return m_Buf; } - - operator uint8_t * () { return m_Buf; } - operator const uint8_t * () const { return m_Buf; } - - const uint8_t * data() const { return m_Buf; } - const uint64_t * GetLL () const { return ll; } - - bool IsZero () const +namespace data +{ + template + class Tag { - for (size_t i = 0; i < sz/8; ++i) - if (ll[i]) return false; - return true; - } + BOOST_STATIC_ASSERT_MSG(sz % 8 == 0, "Tag size must be multiple of 8 bytes"); - void Fill(uint8_t c) - { - memset(m_Buf, c, sz); - } + public: - void Randomize() - { - RAND_bytes(m_Buf, sz); - } + Tag () = default; + Tag (const uint8_t * buf) { memcpy (m_Buf, buf, sz); } - std::string ToBase64 () const - { - char str[sz*2]; - size_t l = i2p::data::ByteStreamToBase64 (m_Buf, sz, str, sz*2); - return std::string (str, str + l); - } + bool operator== (const Tag& other) const { return !memcmp (m_Buf, other.m_Buf, sz); } + bool operator!= (const Tag& other) const { return !(*this == other); } + bool operator< (const Tag& other) const { return memcmp (m_Buf, other.m_Buf, sz) < 0; } - std::string ToBase32 () const - { - char str[sz*2]; - size_t l = i2p::data::ByteStreamToBase32 (m_Buf, sz, str, sz*2); - return std::string (str, str + l); - } + uint8_t * operator()() { return m_Buf; } + const uint8_t * operator()() const { return m_Buf; } - void FromBase32 (const std::string& s) - { - i2p::data::Base32ToByteStream (s.c_str (), s.length (), m_Buf, sz); - } + operator uint8_t * () { return m_Buf; } + operator const uint8_t * () const { return m_Buf; } - void FromBase64 (const std::string& s) - { - i2p::data::Base64ToByteStream (s.c_str (), s.length (), m_Buf, sz); - } + const uint8_t * data() const { return m_Buf; } + const uint64_t * GetLL () const { return ll; } -private: + bool IsZero () const + { + for (size_t i = 0; i < sz/8; ++i) + if (ll[i]) return false; + return true; + } - union // 8 bytes aligned - { - uint8_t m_Buf[sz]; - uint64_t ll[sz/8]; + void Fill(uint8_t c) + { + memset(m_Buf, c, sz); + } + + void Randomize() + { + RAND_bytes(m_Buf, sz); + } + + std::string ToBase64 (size_t len = sz) const + { + return i2p::data::ByteStreamToBase64 (m_Buf, len); + } + + std::string ToBase32 (size_t len = sz) const + { + return i2p::data::ByteStreamToBase32 (m_Buf, len); + } + + size_t FromBase32 (std::string_view s) + { + return i2p::data::Base32ToByteStream (s, m_Buf, sz); + } + + size_t FromBase64 (std::string_view s) + { + return i2p::data::Base64ToByteStream (s, m_Buf, sz); + } + + uint8_t GetBit (int i) const + { + int pos = i >> 3; // /8 + if (pos >= (int)sz) return 0; + return m_Buf[pos] & (0x80 >> (i & 0x07)); + } + + private: + + union // 8 bytes aligned + { + uint8_t m_Buf[sz]; + uint64_t ll[sz/8]; + }; }; -}; - } // data } // i2p +namespace std +{ + // hash for std::unordered_map + template struct hash > + { + size_t operator()(const i2p::data::Tag& s) const + { + return s.GetLL ()[0]; + } + }; +} + #endif /* TAG_H__ */ diff --git a/libi2pd/Timestamp.cpp b/libi2pd/Timestamp.cpp index acc9cb10..a22e9bde 100644 --- a/libi2pd/Timestamp.cpp +++ b/libi2pd/Timestamp.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -8,10 +16,12 @@ #include #include "Config.h" #include "Log.h" +#include "RouterContext.h" #include "I2PEndian.h" #include "Timestamp.h" +#include "util.h" -#ifdef WIN32 +#ifdef _WIN32 #ifndef _WIN64 #define _USE_32BIT_TIME_T #endif @@ -24,35 +34,67 @@ namespace util static uint64_t GetLocalMillisecondsSinceEpoch () { return std::chrono::duration_cast( - std::chrono::system_clock::now().time_since_epoch()).count (); - } - - static uint32_t GetLocalHoursSinceEpoch () - { - return std::chrono::duration_cast( - std::chrono::system_clock::now().time_since_epoch()).count (); + std::chrono::system_clock::now().time_since_epoch()).count (); } static uint64_t GetLocalSecondsSinceEpoch () { return std::chrono::duration_cast( - std::chrono::system_clock::now().time_since_epoch()).count (); + std::chrono::system_clock::now().time_since_epoch()).count (); + } + + static uint32_t GetLocalMinutesSinceEpoch () + { + return std::chrono::duration_cast( + std::chrono::system_clock::now().time_since_epoch()).count (); + } + + static uint32_t GetLocalHoursSinceEpoch () + { + return std::chrono::duration_cast( + std::chrono::system_clock::now().time_since_epoch()).count (); } static int64_t g_TimeOffset = 0; // in seconds static void SyncTimeWithNTP (const std::string& address) { - LogPrint (eLogInfo, "Timestamp: NTP request to ", address); - boost::asio::io_service service; - boost::asio::ip::udp::resolver::query query (boost::asio::ip::udp::v4 (), address, "ntp"); + LogPrint (eLogInfo, "Timestamp: NTP request to ", address); + boost::asio::io_context service; boost::system::error_code ec; - auto it = boost::asio::ip::udp::resolver (service).resolve (query, ec); - if (!ec && it != boost::asio::ip::udp::resolver::iterator()) + auto endpoints = boost::asio::ip::udp::resolver (service).resolve (address, "ntp", ec); + if (!ec) { - auto ep = (*it).endpoint (); // take first one + bool found = false; + boost::asio::ip::udp::endpoint ep; + for (const auto& it: endpoints) + { + ep = it; + if (!ep.address ().is_unspecified ()) + { + if (ep.address ().is_v4 ()) + { + if (i2p::context.SupportsV4 ()) found = true; + } + else if (ep.address ().is_v6 ()) + { + if (i2p::util::net::IsYggdrasilAddress (ep.address ())) + { + if (i2p::context.SupportsMesh ()) found = true; + } + else if (i2p::context.SupportsV6 ()) found = true; + } + } + if (found) break; + } + if (!found) + { + LogPrint (eLogError, "Timestamp: can't find compatible address for ", address); + return; + } + boost::asio::ip::udp::socket socket (service); - socket.open (boost::asio::ip::udp::v4 (), ec); + socket.open (ep.protocol (), ec); if (!ec) { uint8_t buf[48];// 48 bytes NTP request/response @@ -88,7 +130,7 @@ namespace util LogPrint (eLogError, "Timestamp: Couldn't open UDP socket"); } else - LogPrint (eLogError, "Timestamp: Couldn't resove address ", address); + LogPrint (eLogError, "Timestamp: Couldn't resolve address ", address); } NTPTimeSync::NTPTimeSync (): m_IsRunning (false), m_Timer (m_Service) @@ -109,7 +151,7 @@ namespace util { m_IsRunning = true; LogPrint(eLogInfo, "Timestamp: NTP time sync starting"); - m_Service.post (std::bind (&NTPTimeSync::Sync, this)); + boost::asio::post (m_Service, std::bind (&NTPTimeSync::Sync, this)); m_Thread.reset (new std::thread (std::bind (&NTPTimeSync::Run, this))); } else @@ -134,6 +176,8 @@ namespace util void NTPTimeSync::Run () { + i2p::util::SetThreadName("Timesync"); + while (m_IsRunning) { try @@ -148,11 +192,11 @@ namespace util } void NTPTimeSync::Sync () - { + { if (m_NTPServersList.size () > 0) SyncTimeWithNTP (m_NTPServersList[rand () % m_NTPServersList.size ()]); else - m_IsRunning = false; + m_IsRunning = false; if (m_IsRunning) { @@ -170,21 +214,49 @@ namespace util return GetLocalMillisecondsSinceEpoch () + g_TimeOffset*1000; } - uint32_t GetHoursSinceEpoch () - { - return GetLocalHoursSinceEpoch () + g_TimeOffset/3600; - } - uint64_t GetSecondsSinceEpoch () { return GetLocalSecondsSinceEpoch () + g_TimeOffset; } + uint32_t GetMinutesSinceEpoch () + { + return GetLocalMinutesSinceEpoch () + g_TimeOffset/60; + } + + uint32_t GetHoursSinceEpoch () + { + return GetLocalHoursSinceEpoch () + g_TimeOffset/3600; + } + + uint64_t GetMonotonicMicroseconds() + { + return std::chrono::duration_cast( + std::chrono::steady_clock::now().time_since_epoch()).count(); + } + + uint64_t GetMonotonicMilliseconds() + { + return std::chrono::duration_cast( + std::chrono::steady_clock::now().time_since_epoch()).count(); + } + + uint64_t GetMonotonicSeconds () + { + return std::chrono::duration_cast( + std::chrono::steady_clock::now().time_since_epoch()).count(); + } + void GetCurrentDate (char * date) { GetDateString (GetSecondsSinceEpoch (), date); } + void GetNextDayDate (char * date) + { + GetDateString (GetSecondsSinceEpoch () + 24*60*60, date); + } + void GetDateString (uint64_t timestamp, char * date) { using clock = std::chrono::system_clock; @@ -198,6 +270,10 @@ namespace util sprintf(date, "%04i%02i%02i", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday); #endif } -} -} + void AdjustTimeOffset (int64_t offset) + { + g_TimeOffset += offset; + } +} +} diff --git a/libi2pd/Timestamp.h b/libi2pd/Timestamp.h index 31dc86aa..00c60433 100644 --- a/libi2pd/Timestamp.h +++ b/libi2pd/Timestamp.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TIMESTAMP_H__ #define TIMESTAMP_H__ @@ -12,11 +20,18 @@ namespace i2p namespace util { uint64_t GetMillisecondsSinceEpoch (); - uint32_t GetHoursSinceEpoch (); uint64_t GetSecondsSinceEpoch (); + uint32_t GetMinutesSinceEpoch (); + uint32_t GetHoursSinceEpoch (); - void GetCurrentDate (char * date); // returns date as YYYYMMDD string, 9 bytes - void GetDateString (uint64_t timestamp, char * date); // timestap is seconds since epoch, returns date as YYYYMMDD string, 9 bytes + uint64_t GetMonotonicMicroseconds (); + uint64_t GetMonotonicMilliseconds (); + uint64_t GetMonotonicSeconds (); + + void GetCurrentDate (char * date); // returns UTC date as YYYYMMDD string, 9 bytes + void GetNextDayDate (char * date); // returns next UTC day as YYYYMMDD string, 9 bytes + void GetDateString (uint64_t timestamp, char * date); // timestamp is seconds since epoch, returns date as YYYYMMDD string, 9 bytes + void AdjustTimeOffset (int64_t offset); // in seconds from current class NTPTimeSync { @@ -26,18 +41,18 @@ namespace util ~NTPTimeSync (); void Start (); - void Stop (); + void Stop (); private: - + void Run (); - void Sync (); + void Sync (); private: bool m_IsRunning; - std::unique_ptr m_Thread; - boost::asio::io_service m_Service; + std::unique_ptr m_Thread; + boost::asio::io_context m_Service; boost::asio::deadline_timer m_Timer; int m_SyncInterval; std::vector m_NTPServersList; @@ -46,4 +61,3 @@ namespace util } #endif - diff --git a/libi2pd/TransitTunnel.cpp b/libi2pd/TransitTunnel.cpp index 1adc4178..b24c8ac5 100644 --- a/libi2pd/TransitTunnel.cpp +++ b/libi2pd/TransitTunnel.cpp @@ -1,8 +1,21 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "I2PEndian.h" +#include "Crypto.h" #include "Log.h" +#include "Identity.h" +#include "RouterInfo.h" #include "RouterContext.h" #include "I2NPProtocol.h" +#include "Garlic.h" +#include "ECIESX25519AEADRatchetSession.h" #include "Tunnel.h" #include "Transports.h" #include "TransitTunnel.h" @@ -12,32 +25,51 @@ namespace i2p namespace tunnel { TransitTunnel::TransitTunnel (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey): - TunnelBase (receiveTunnelID, nextTunnelID, nextIdent) + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey): + TunnelBase (receiveTunnelID, nextTunnelID, nextIdent), + m_LayerKey (layerKey), m_IVKey (ivKey) { - m_Encryption.SetKeys (layerKey, ivKey); } void TransitTunnel::EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out) { - m_Encryption.Encrypt (in->GetPayload () + 4, out->GetPayload () + 4); + if (!m_Encryption) + { + m_Encryption.reset (new i2p::crypto::TunnelEncryption); + m_Encryption->SetKeys (m_LayerKey, m_IVKey); + } + m_Encryption->Encrypt (in->GetPayload () + 4, out->GetPayload () + 4); i2p::transport::transports.UpdateTotalTransitTransmittedBytes (TUNNEL_DATA_MSG_SIZE); } + std::string TransitTunnel::GetNextPeerName () const + { + return i2p::data::GetIdentHashAbbreviation (GetNextIdentHash ()); + } + + void TransitTunnel::SendTunnelDataMsg (std::shared_ptr msg) + { + LogPrint (eLogError, "TransitTunnel: We are not a gateway for ", GetTunnelID ()); + } + + void TransitTunnel::HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) + { + LogPrint (eLogError, "TransitTunnel: Incoming tunnel message is not supported ", GetTunnelID ()); + } + TransitTunnelParticipant::~TransitTunnelParticipant () { } - void TransitTunnelParticipant::HandleTunnelDataMsg (std::shared_ptr tunnelMsg) + void TransitTunnelParticipant::HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) { - auto newMsg = CreateEmptyTunnelDataMsg (); - EncryptTunnelMsg (tunnelMsg, newMsg); + EncryptTunnelMsg (tunnelMsg, tunnelMsg); m_NumTransmittedBytes += tunnelMsg->GetLength (); - htobe32buf (newMsg->GetPayload (), GetNextTunnelID ()); - newMsg->FillI2NPMessageHeader (eI2NPTunnelData); - m_TunnelDataMsgs.push_back (newMsg); + htobe32buf (tunnelMsg->GetPayload (), GetNextTunnelID ()); + tunnelMsg->FillI2NPMessageHeader (eI2NPTunnelData); + m_TunnelDataMsgs.push_back (tunnelMsg); } void TransitTunnelParticipant::FlushTunnelDataMsgs () @@ -47,48 +79,103 @@ namespace tunnel auto num = m_TunnelDataMsgs.size (); if (num > 1) LogPrint (eLogDebug, "TransitTunnel: ", GetTunnelID (), "->", GetNextTunnelID (), " ", num); - i2p::transport::transports.SendMessages (GetNextIdentHash (), m_TunnelDataMsgs); - m_TunnelDataMsgs.clear (); + if (!m_Sender) m_Sender = std::make_unique(); + m_Sender->SendMessagesTo (GetNextIdentHash (), m_TunnelDataMsgs); // send and clear } } - void TransitTunnel::SendTunnelDataMsg (std::shared_ptr msg) + std::string TransitTunnelParticipant::GetNextPeerName () const { - LogPrint (eLogError, "TransitTunnel: We are not a gateway for ", GetTunnelID ()); - } - - void TransitTunnel::HandleTunnelDataMsg (std::shared_ptr tunnelMsg) - { - LogPrint (eLogError, "TransitTunnel: Incoming tunnel message is not supported ", GetTunnelID ()); - } - + if (m_Sender) + { + auto transport = m_Sender->GetCurrentTransport (); + if (transport) + return TransitTunnel::GetNextPeerName () + "-" + + i2p::data::RouterInfo::GetTransportName (transport->GetTransportType ()); + } + return TransitTunnel::GetNextPeerName (); + } + void TransitTunnelGateway::SendTunnelDataMsg (std::shared_ptr msg) { TunnelMessageBlock block; block.deliveryType = eDeliveryTypeLocal; block.data = msg; - std::unique_lock l(m_SendMutex); + std::lock_guard l(m_SendMutex); m_Gateway.PutTunnelDataMsg (block); } void TransitTunnelGateway::FlushTunnelDataMsgs () { - std::unique_lock l(m_SendMutex); + std::lock_guard l(m_SendMutex); m_Gateway.SendBuffer (); } - void TransitTunnelEndpoint::HandleTunnelDataMsg (std::shared_ptr tunnelMsg) + std::string TransitTunnelGateway::GetNextPeerName () const { - auto newMsg = CreateEmptyTunnelDataMsg (); + const auto& sender = m_Gateway.GetSender (); + if (sender) + { + auto transport = sender->GetCurrentTransport (); + if (transport) + return TransitTunnel::GetNextPeerName () + "-" + + i2p::data::RouterInfo::GetTransportName (transport->GetTransportType ()); + } + return TransitTunnel::GetNextPeerName (); + } + + void TransitTunnelEndpoint::HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) + { + auto newMsg = CreateEmptyTunnelDataMsg (true); EncryptTunnelMsg (tunnelMsg, newMsg); LogPrint (eLogDebug, "TransitTunnel: handle msg for endpoint ", GetTunnelID ()); - m_Endpoint.HandleDecryptedTunnelDataMsg (newMsg); + std::lock_guard l(m_HandleMutex); + if (!m_Endpoint) m_Endpoint = std::make_unique(false); // transit endpoint is always outbound + m_Endpoint->HandleDecryptedTunnelDataMsg (newMsg); } + void TransitTunnelEndpoint::FlushTunnelDataMsgs () + { + if (m_Endpoint) + { + std::lock_guard l(m_HandleMutex); + m_Endpoint->FlushI2NPMsgs (); + } + } + + void TransitTunnelEndpoint::Cleanup () + { + if (m_Endpoint) + { + std::lock_guard l(m_HandleMutex); + m_Endpoint->Cleanup (); + } + } + + std::string TransitTunnelEndpoint::GetNextPeerName () const + { + if (!m_Endpoint) return ""; + auto hash = m_Endpoint->GetCurrentHash (); + if (hash) + { + const auto& sender = m_Endpoint->GetSender (); + if (sender) + { + auto transport = sender->GetCurrentTransport (); + if (transport) + return i2p::data::GetIdentHashAbbreviation (*hash) + "-" + + i2p::data::RouterInfo::GetTransportName (transport->GetTransportType ()); + else + return i2p::data::GetIdentHashAbbreviation (*hash); + } + } + return ""; + } + std::shared_ptr CreateTransitTunnel (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey, + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey, bool isGateway, bool isEndpoint) { if (isEndpoint) @@ -107,5 +194,440 @@ namespace tunnel return std::make_shared (receiveTunnelID, nextIdent, nextTunnelID, layerKey, ivKey); } } + + TransitTunnels::TransitTunnels (): + m_IsRunning (false), m_Rng(i2p::util::GetMonotonicMicroseconds ()%1000000LL) + { + } + + TransitTunnels::~TransitTunnels () + { + Stop (); + } + + void TransitTunnels::Start () + { + m_IsRunning = true; + m_Thread.reset (new std::thread (std::bind (&TransitTunnels::Run, this))); + } + + void TransitTunnels::Stop () + { + m_IsRunning = false; + m_TunnelBuildMsgQueue.WakeUp (); + if (m_Thread) + { + m_Thread->join (); + m_Thread = nullptr; + } + m_TransitTunnels.clear (); + } + + void TransitTunnels::Run () + { + i2p::util::SetThreadName("TBM"); + uint64_t lastTs = 0; + std::list > msgs; + while (m_IsRunning) + { + try + { + if (m_TunnelBuildMsgQueue.Wait (TRANSIT_TUNNELS_QUEUE_WAIT_INTERVAL, 0)) + { + m_TunnelBuildMsgQueue.GetWholeQueue (msgs); + while (!msgs.empty ()) + { + auto msg = msgs.front (); msgs.pop_front (); + if (!msg) continue; + uint8_t typeID = msg->GetTypeID (); + switch (typeID) + { + case eI2NPShortTunnelBuild: + HandleShortTransitTunnelBuildMsg (std::move (msg)); + break; + case eI2NPVariableTunnelBuild: + HandleVariableTransitTunnelBuildMsg (std::move (msg)); + break; + default: + LogPrint (eLogWarning, "TransitTunnel: Unexpected message type ", (int) typeID); + } + if (!m_IsRunning) break; + } + } + if (m_IsRunning) + { + uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + if (ts >= lastTs + TUNNEL_MANAGE_INTERVAL || ts + TUNNEL_MANAGE_INTERVAL < lastTs) + { + ManageTransitTunnels (ts); + lastTs = ts; + } + } + } + catch (std::exception& ex) + { + LogPrint (eLogError, "TransitTunnel: Runtime exception: ", ex.what ()); + } + } + } + + void TransitTunnels::PostTransitTunnelBuildMsg (std::shared_ptr&& msg) + { + if (msg) m_TunnelBuildMsgQueue.Put (msg); + } + + void TransitTunnels::HandleShortTransitTunnelBuildMsg (std::shared_ptr&& msg) + { + if (!msg) return; + uint8_t * buf = msg->GetPayload(); + size_t len = msg->GetPayloadLength(); + int num = buf[0]; + LogPrint (eLogDebug, "TransitTunnel: ShortTunnelBuild ", num, " records"); + if (num > i2p::tunnel::MAX_NUM_RECORDS) + { + LogPrint (eLogError, "TransitTunnel: Too many records in ShortTunnelBuild message ", num); + return; + } + if (len < num*SHORT_TUNNEL_BUILD_RECORD_SIZE + 1) + { + LogPrint (eLogError, "TransitTunnel: ShortTunnelBuild message of ", num, " records is too short ", len); + return; + } + const uint8_t * record = buf + 1; + for (int i = 0; i < num; i++) + { + if (!memcmp (record, (const uint8_t *)i2p::context.GetRouterInfo ().GetIdentHash (), 16)) + { + LogPrint (eLogDebug, "TransitTunnel: Short request record ", i, " is ours"); + uint8_t clearText[SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE]; + if (!i2p::context.DecryptTunnelShortRequestRecord (record + SHORT_REQUEST_RECORD_ENCRYPTED_OFFSET, clearText)) + { + LogPrint (eLogWarning, "TransitTunnel: Can't decrypt short request record ", i); + return; + } + if (clearText[SHORT_REQUEST_RECORD_LAYER_ENCRYPTION_TYPE]) // not AES + { + LogPrint (eLogWarning, "TransitTunnel: Unknown layer encryption type ", clearText[SHORT_REQUEST_RECORD_LAYER_ENCRYPTION_TYPE], " in short request record"); + return; + } + auto& noiseState = i2p::context.GetCurrentNoiseState (); + uint8_t replyKey[32]; // AEAD/Chacha20/Poly1305 + i2p::crypto::AESKey layerKey, ivKey; // AES + i2p::crypto::HKDF (noiseState.m_CK, nullptr, 0, "SMTunnelReplyKey", noiseState.m_CK); + memcpy (replyKey, noiseState.m_CK + 32, 32); + i2p::crypto::HKDF (noiseState.m_CK, nullptr, 0, "SMTunnelLayerKey", noiseState.m_CK); + memcpy (layerKey, noiseState.m_CK + 32, 32); + bool isEndpoint = clearText[SHORT_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_ENDPOINT_FLAG; + if (isEndpoint) + { + i2p::crypto::HKDF (noiseState.m_CK, nullptr, 0, "TunnelLayerIVKey", noiseState.m_CK); + memcpy (ivKey, noiseState.m_CK + 32, 32); + } + else + { + if (!memcmp ((const uint8_t *)i2p::context.GetIdentHash (), clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, 32)) // if next ident is now ours + { + LogPrint (eLogWarning, "TransitTunnel: Next ident is ours in short request record"); + return; + } + memcpy (ivKey, noiseState.m_CK , 32); + } + + // check if we accept this tunnel + std::shared_ptr transitTunnel; + uint8_t retCode = 0; + if (i2p::context.AcceptsTunnels ()) + { + auto congestionLevel = i2p::context.GetCongestionLevel (false); + if (congestionLevel < CONGESTION_LEVEL_FULL) + { + if (congestionLevel >= CONGESTION_LEVEL_MEDIUM) + { + // random reject depending on congestion level + int level = m_Rng () % (CONGESTION_LEVEL_FULL - CONGESTION_LEVEL_MEDIUM) + CONGESTION_LEVEL_MEDIUM; + if (congestionLevel > level) + retCode = 30; + } + } + else + retCode = 30; + } + else + retCode = 30; + + if (!retCode) + { + i2p::data::IdentHash nextIdent(clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET); + bool isEndpoint = clearText[SHORT_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_ENDPOINT_FLAG; + if (isEndpoint || !i2p::data::IsRouterDuplicated (nextIdent)) + { + // create new transit tunnel + transitTunnel = CreateTransitTunnel ( + bufbe32toh (clearText + SHORT_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET), + nextIdent, + bufbe32toh (clearText + SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), + layerKey, ivKey, + clearText[SHORT_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_GATEWAY_FLAG, + isEndpoint); + if (!AddTransitTunnel (transitTunnel)) + retCode = 30; + } + else + // decline tunnel going to duplicated router + retCode = 30; + } + + // encrypt reply + uint8_t nonce[12]; + memset (nonce, 0, 12); + uint8_t * reply = buf + 1; + for (int j = 0; j < num; j++) + { + nonce[4] = j; // nonce is record # + if (j == i) + { + memset (reply + SHORT_RESPONSE_RECORD_OPTIONS_OFFSET, 0, 2); // no options + reply[SHORT_RESPONSE_RECORD_RET_OFFSET] = retCode; + if (!i2p::crypto::AEADChaCha20Poly1305 (reply, SHORT_TUNNEL_BUILD_RECORD_SIZE - 16, + noiseState.m_H, 32, replyKey, nonce, reply, SHORT_TUNNEL_BUILD_RECORD_SIZE, true)) // encrypt + { + LogPrint (eLogWarning, "TransitTunnel: Short reply AEAD encryption failed"); + return; + } + } + else + i2p::crypto::ChaCha20 (reply, SHORT_TUNNEL_BUILD_RECORD_SIZE, replyKey, nonce, reply); + reply += SHORT_TUNNEL_BUILD_RECORD_SIZE; + } + // send reply + auto onDrop = [transitTunnel]() + { + if (transitTunnel) + { + LogPrint (eLogDebug, "TransitTunnel: Failed to send reply for transit tunnel ", transitTunnel->GetTunnelID ()); + auto t = transitTunnel->GetCreationTime (); + if (t > i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT) + // make transit tunnel expired + transitTunnel->SetCreationTime (t - i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT); + } + }; + if (isEndpoint) + { + auto replyMsg = NewI2NPShortMessage (); + replyMsg->Concat (buf, len); + replyMsg->FillI2NPMessageHeader (eI2NPShortTunnelBuildReply, bufbe32toh (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET)); + if (transitTunnel) replyMsg->onDrop = onDrop; + if (memcmp ((const uint8_t *)i2p::context.GetIdentHash (), + clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, 32)) // reply IBGW is not local? + { + i2p::crypto::HKDF (noiseState.m_CK, nullptr, 0, "RGarlicKeyAndTag", noiseState.m_CK); + uint64_t tag; + memcpy (&tag, noiseState.m_CK, 8); + // we send it to reply tunnel + i2p::transport::transports.SendMessage (clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, + CreateTunnelGatewayMsg (bufbe32toh (clearText + SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), + i2p::garlic::WrapECIESX25519Message (replyMsg, noiseState.m_CK + 32, tag))); + } + else + { + // IBGW is local + uint32_t tunnelID = bufbe32toh (clearText + SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET); + auto tunnel = i2p::tunnel::tunnels.GetTunnel (tunnelID); + if (tunnel) + { + tunnel->SendTunnelDataMsg (replyMsg); + tunnel->FlushTunnelDataMsgs (); + } + else + LogPrint (eLogWarning, "I2NP: Tunnel ", tunnelID, " not found for short tunnel build reply"); + } + } + else + { + auto msg = CreateI2NPMessage (eI2NPShortTunnelBuild, buf, len, + bufbe32toh (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET)); + if (transitTunnel) msg->onDrop = onDrop; + i2p::transport::transports.SendMessage (clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, msg); + } + return; + } + record += SHORT_TUNNEL_BUILD_RECORD_SIZE; + } + } + + bool TransitTunnels::HandleBuildRequestRecords (int num, uint8_t * records, uint8_t * clearText) + { + for (int i = 0; i < num; i++) + { + uint8_t * record = records + i*TUNNEL_BUILD_RECORD_SIZE; + if (!memcmp (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)i2p::context.GetRouterInfo ().GetIdentHash (), 16)) + { + LogPrint (eLogDebug, "TransitTunnel: Build request record ", i, " is ours"); + if (!i2p::context.DecryptTunnelBuildRecord (record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, clearText)) + { + LogPrint (eLogWarning, "TransitTunnel: Failed to decrypt tunnel build record"); + return false; + } + if (!memcmp ((const uint8_t *)i2p::context.GetIdentHash (), clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, 32) && // if next ident is now ours + !(clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_ENDPOINT_FLAG)) // and not endpoint + { + LogPrint (eLogWarning, "TransitTunnel: Next ident is ours in tunnel build record"); + return false; + } + uint8_t retCode = 0; + // decide if we should accept tunnel + bool accept = i2p::context.AcceptsTunnels (); + if (accept) + { + auto congestionLevel = i2p::context.GetCongestionLevel (false); + if (congestionLevel >= CONGESTION_LEVEL_MEDIUM) + { + if (congestionLevel < CONGESTION_LEVEL_FULL) + { + // random reject depending on congestion level + int level = m_Rng () % (CONGESTION_LEVEL_FULL - CONGESTION_LEVEL_MEDIUM) + CONGESTION_LEVEL_MEDIUM; + if (congestionLevel > level) + accept = false; + } + else + accept = false; + } + } + + if (accept) + { + i2p::data::IdentHash nextIdent(clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET); + bool isEndpoint = clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_ENDPOINT_FLAG; + if (isEndpoint || !i2p::data::IsRouterDuplicated (nextIdent)) + { + auto transitTunnel = CreateTransitTunnel ( + bufbe32toh (clearText + ECIES_BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET), + nextIdent, + bufbe32toh (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), + clearText + ECIES_BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET, + clearText + ECIES_BUILD_REQUEST_RECORD_IV_KEY_OFFSET, + clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_GATEWAY_FLAG, + isEndpoint); + if (!AddTransitTunnel (transitTunnel)) + retCode = 30; + } + else + // decline tunnel going to duplicated router + retCode = 30; + } + else + retCode = 30; // always reject with bandwidth reason (30) + + // replace record to reply + memset (record + ECIES_BUILD_RESPONSE_RECORD_OPTIONS_OFFSET, 0, 2); // no options + record[ECIES_BUILD_RESPONSE_RECORD_RET_OFFSET] = retCode; + // encrypt reply + i2p::crypto::CBCEncryption encryption; + for (int j = 0; j < num; j++) + { + uint8_t * reply = records + j*TUNNEL_BUILD_RECORD_SIZE; + if (j == i) + { + uint8_t nonce[12]; + memset (nonce, 0, 12); + auto& noiseState = i2p::context.GetCurrentNoiseState (); + if (!i2p::crypto::AEADChaCha20Poly1305 (reply, TUNNEL_BUILD_RECORD_SIZE - 16, + noiseState.m_H, 32, noiseState.m_CK, nonce, reply, TUNNEL_BUILD_RECORD_SIZE, true)) // encrypt + { + LogPrint (eLogWarning, "TransitTunnel: Reply AEAD encryption failed"); + return false; + } + } + else + { + encryption.SetKey (clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET); + encryption.Encrypt(reply, TUNNEL_BUILD_RECORD_SIZE, clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_IV_OFFSET, reply); + } + } + return true; + } + } + return false; + } + + void TransitTunnels::HandleVariableTransitTunnelBuildMsg (std::shared_ptr&& msg) + { + if (!msg) return; + uint8_t * buf = msg->GetPayload(); + size_t len = msg->GetPayloadLength(); + int num = buf[0]; + LogPrint (eLogDebug, "TransitTunnel: VariableTunnelBuild ", num, " records"); + if (num > i2p::tunnel::MAX_NUM_RECORDS) + { + LogPrint (eLogError, "TransitTunnle: Too many records in VaribleTunnelBuild message ", num); + return; + } + if (len < num*TUNNEL_BUILD_RECORD_SIZE + 1) + { + LogPrint (eLogError, "TransitTunnel: VaribleTunnelBuild message of ", num, " records is too short ", len); + return; + } + uint8_t clearText[ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE]; + if (HandleBuildRequestRecords (num, buf + 1, clearText)) + { + if (clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] & TUNNEL_BUILD_RECORD_ENDPOINT_FLAG) // we are endpoint of outboud tunnel + { + // so we send it to reply tunnel + i2p::transport::transports.SendMessage (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, + CreateTunnelGatewayMsg (bufbe32toh (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET), + eI2NPVariableTunnelBuildReply, buf, len, + bufbe32toh (clearText + ECIES_BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); + } + else + i2p::transport::transports.SendMessage (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, + CreateI2NPMessage (eI2NPVariableTunnelBuild, buf, len, + bufbe32toh (clearText + ECIES_BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET))); + } + } + + bool TransitTunnels::AddTransitTunnel (std::shared_ptr tunnel) + { + if (tunnels.AddTunnel (tunnel)) + m_TransitTunnels.push_back (tunnel); + else + { + LogPrint (eLogError, "TransitTunnel: Tunnel with id ", tunnel->GetTunnelID (), " already exists"); + return false; + } + return true; + } + + void TransitTunnels::ManageTransitTunnels (uint64_t ts) + { + for (auto it = m_TransitTunnels.begin (); it != m_TransitTunnels.end ();) + { + auto tunnel = *it; + if (ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT || + ts + TUNNEL_EXPIRATION_TIMEOUT < tunnel->GetCreationTime ()) + { + LogPrint (eLogDebug, "TransitTunnel: Transit tunnel with id ", tunnel->GetTunnelID (), " expired"); + tunnels.RemoveTunnel (tunnel->GetTunnelID ()); + it = m_TransitTunnels.erase (it); + } + else + { + tunnel->Cleanup (); + it++; + } + } + } + + int TransitTunnels::GetTransitTunnelsExpirationTimeout () + { + int timeout = 0; + uint32_t ts = i2p::util::GetSecondsSinceEpoch (); + // TODO: possible race condition with I2PControl + for (const auto& it : m_TransitTunnels) + { + int t = it->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT - ts; + if (t > timeout) timeout = t; + } + return timeout; + } } } diff --git a/libi2pd/TransitTunnel.h b/libi2pd/TransitTunnel.h index 5b891dc3..34bcc79f 100644 --- a/libi2pd/TransitTunnel.h +++ b/libi2pd/TransitTunnel.h @@ -1,11 +1,20 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TRANSIT_TUNNEL_H__ #define TRANSIT_TUNNEL_H__ #include -#include +#include #include #include #include "Crypto.h" +#include "Queue.h" #include "I2NPProtocol.h" #include "TunnelEndpoint.h" #include "TunnelGateway.h" @@ -20,18 +29,21 @@ namespace tunnel public: TransitTunnel (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey); + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey); virtual size_t GetNumTransmittedBytes () const { return 0; }; + virtual std::string GetNextPeerName () const; // implements TunnelBase - void SendTunnelDataMsg (std::shared_ptr msg); - void HandleTunnelDataMsg (std::shared_ptr tunnelMsg); - void EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out); + void SendTunnelDataMsg (std::shared_ptr msg) override; + void HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) override; + void EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out) override; + private: - i2p::crypto::TunnelEncryption m_Encryption; + i2p::crypto::AESKey m_LayerKey, m_IVKey; + std::unique_ptr m_Encryption; }; class TransitTunnelParticipant: public TransitTunnel @@ -39,20 +51,22 @@ namespace tunnel public: TransitTunnelParticipant (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey): + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey): TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID, layerKey, ivKey), m_NumTransmittedBytes (0) {}; ~TransitTunnelParticipant (); - size_t GetNumTransmittedBytes () const { return m_NumTransmittedBytes; }; - void HandleTunnelDataMsg (std::shared_ptr tunnelMsg); - void FlushTunnelDataMsgs (); + size_t GetNumTransmittedBytes () const override { return m_NumTransmittedBytes; }; + std::string GetNextPeerName () const override; + void HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) override; + void FlushTunnelDataMsgs () override; private: size_t m_NumTransmittedBytes; - std::vector > m_TunnelDataMsgs; + std::list > m_TunnelDataMsgs; + std::unique_ptr m_Sender; }; class TransitTunnelGateway: public TransitTunnel @@ -60,15 +74,16 @@ namespace tunnel public: TransitTunnelGateway (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey): + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey): TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID, - layerKey, ivKey), m_Gateway(this) {}; - - void SendTunnelDataMsg (std::shared_ptr msg); - void FlushTunnelDataMsgs (); - size_t GetNumTransmittedBytes () const { return m_Gateway.GetNumSentBytes (); }; + layerKey, ivKey), m_Gateway(*this) {}; + void SendTunnelDataMsg (std::shared_ptr msg) override; + void FlushTunnelDataMsgs () override; + size_t GetNumTransmittedBytes () const override { return m_Gateway.GetNumSentBytes (); }; + std::string GetNextPeerName () const override; + private: std::mutex m_SendMutex; @@ -80,25 +95,70 @@ namespace tunnel public: TransitTunnelEndpoint (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey): - TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID, layerKey, ivKey), - m_Endpoint (false) {}; // transit endpoint is always outbound - - void Cleanup () { m_Endpoint.Cleanup (); } - - void HandleTunnelDataMsg (std::shared_ptr tunnelMsg); - size_t GetNumTransmittedBytes () const { return m_Endpoint.GetNumReceivedBytes (); } + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey): + TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID, layerKey, ivKey) {}; + void Cleanup () override; + + void HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) override; + void FlushTunnelDataMsgs () override; + size_t GetNumTransmittedBytes () const override { return m_Endpoint ? m_Endpoint->GetNumReceivedBytes () : 0; } + std::string GetNextPeerName () const override; + private: - TunnelEndpoint m_Endpoint; + std::mutex m_HandleMutex; + std::unique_ptr m_Endpoint; }; std::shared_ptr CreateTransitTunnel (uint32_t receiveTunnelID, - const uint8_t * nextIdent, uint32_t nextTunnelID, - const uint8_t * layerKey,const uint8_t * ivKey, + const i2p::data::IdentHash& nextIdent, uint32_t nextTunnelID, + const i2p::crypto::AESKey& layerKey, const i2p::crypto::AESKey& ivKey, bool isGateway, bool isEndpoint); + + + const int TRANSIT_TUNNELS_QUEUE_WAIT_INTERVAL = 10; // in seconds + + class TransitTunnels + { + public: + + TransitTunnels (); + ~TransitTunnels (); + + void Start (); + void Stop (); + void PostTransitTunnelBuildMsg (std::shared_ptr&& msg); + + size_t GetNumTransitTunnels () const { return m_TransitTunnels.size (); } + int GetTransitTunnelsExpirationTimeout (); + + private: + + bool AddTransitTunnel (std::shared_ptr tunnel); + void ManageTransitTunnels (uint64_t ts); + + void HandleShortTransitTunnelBuildMsg (std::shared_ptr&& msg); + void HandleVariableTransitTunnelBuildMsg (std::shared_ptr&& msg); + bool HandleBuildRequestRecords (int num, uint8_t * records, uint8_t * clearText); + + void Run (); + + private: + + volatile bool m_IsRunning; + std::unique_ptr m_Thread; + std::list > m_TransitTunnels; + i2p::util::Queue > m_TunnelBuildMsgQueue; + std::mt19937 m_Rng; + + public: + + // for HTTP only + const auto& GetTransitTunnels () const { return m_TransitTunnels; }; + size_t GetTunnelBuildMsgQueueSize () const { return m_TunnelBuildMsgQueue.GetSize (); }; + }; } } diff --git a/libi2pd/TransportSession.h b/libi2pd/TransportSession.h index 49067ce2..2cff0b1f 100644 --- a/libi2pd/TransportSession.h +++ b/libi2pd/TransportSession.h @@ -1,10 +1,19 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TRANSPORT_SESSION_H__ #define TRANSPORT_SESSION_H__ #include -#include +#include #include #include +#include #include "Identity.h" #include "Crypto.h" #include "RouterInfo.h" @@ -15,51 +24,74 @@ namespace i2p { namespace transport { + const size_t IPV4_HEADER_SIZE = 20; + const size_t IPV6_HEADER_SIZE = 40; + const size_t UDP_HEADER_SIZE = 8; + + template class SignedData { public: - SignedData () {} + SignedData (): m_Size(0) {} SignedData (const SignedData& other) { - m_Stream << other.m_Stream.rdbuf (); + m_Size = other.m_Size; + memcpy (m_Buf, other.m_Buf, m_Size); } - void Insert (const uint8_t * buf, size_t len) + + void Reset () { - m_Stream.write ((char *)buf, len); + m_Size = 0; + } + + size_t Insert (const uint8_t * buf, size_t len) + { + if (m_Size + len > sz) len = sz - m_Size; + memcpy (m_Buf + m_Size, buf, len); + m_Size += len; + return len; } template void Insert (T t) { - m_Stream.write ((char *)&t, sizeof (T)); + Insert ((const uint8_t *)&t, sizeof (T)); } bool Verify (std::shared_ptr ident, const uint8_t * signature) const { - return ident->Verify ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature); + return ident->Verify (m_Buf, m_Size, signature); } void Sign (const i2p::data::PrivateKeys& keys, uint8_t * signature) const { - keys.Sign ((const uint8_t *)m_Stream.str ().c_str (), m_Stream.str ().size (), signature); + keys.Sign (m_Buf, m_Size, signature); } private: - std::stringstream m_Stream; + uint8_t m_Buf[sz]; + size_t m_Size; }; + const int64_t TRANSPORT_SESSION_SLOWNESS_THRESHOLD = 500; // in milliseconds + const int64_t TRANSPORT_SESSION_MAX_HANDSHAKE_INTERVAL = 10000; // in milliseconds + const uint64_t TRANSPORT_SESSION_BANDWIDTH_UPDATE_MIN_INTERVAL = 5; // in seconds class TransportSession { public: TransportSession (std::shared_ptr router, int terminationTimeout): - m_DHKeysPair (nullptr), m_NumSentBytes (0), m_NumReceivedBytes (0), m_IsOutgoing (router), m_TerminationTimeout (terminationTimeout), - m_LastActivityTimestamp (i2p::util::GetSecondsSinceEpoch ()) + m_IsOutgoing (router), m_TerminationTimeout (terminationTimeout), m_HandshakeInterval (0), + m_SendQueueSize (0), m_NumSentBytes (0), m_NumReceivedBytes (0), + m_LastBandWidthUpdateNumSentBytes (0), m_LastBandWidthUpdateNumReceivedBytes (0), + m_LastActivityTimestamp (i2p::util::GetSecondsSinceEpoch ()), + m_LastBandwidthUpdateTimestamp (m_LastActivityTimestamp), m_InBandwidth (0), m_OutBandwidth (0) { if (router) m_RemoteIdentity = router->GetRouterIdentity (); + m_CreationTime = m_LastActivityTimestamp; } virtual ~TransportSession () {}; @@ -67,29 +99,104 @@ namespace transport std::string GetIdentHashBase64() const { return m_RemoteIdentity ? m_RemoteIdentity->GetIdentHash().ToBase64() : ""; } - std::shared_ptr GetRemoteIdentity () { return m_RemoteIdentity; }; - void SetRemoteIdentity (std::shared_ptr ident) { m_RemoteIdentity = ident; }; + std::shared_ptr GetRemoteIdentity () + { + std::lock_guard l(m_RemoteIdentityMutex); + return m_RemoteIdentity; + } + void SetRemoteIdentity (std::shared_ptr ident) + { + std::lock_guard l(m_RemoteIdentityMutex); + m_RemoteIdentity = ident; + } size_t GetNumSentBytes () const { return m_NumSentBytes; }; + void UpdateNumSentBytes (size_t len) + { + m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); + m_NumSentBytes += len; + UpdateBandwidth (); + } size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; }; + void UpdateNumReceivedBytes (size_t len) + { + m_LastActivityTimestamp = i2p::util::GetSecondsSinceEpoch (); + m_NumReceivedBytes += len; + UpdateBandwidth (); + } + size_t GetSendQueueSize () const { return m_SendQueueSize; }; + void SetSendQueueSize (size_t s) { m_SendQueueSize = s; }; bool IsOutgoing () const { return m_IsOutgoing; }; - + bool IsSlow () const { return m_HandshakeInterval > TRANSPORT_SESSION_SLOWNESS_THRESHOLD && + m_HandshakeInterval < TRANSPORT_SESSION_MAX_HANDSHAKE_INTERVAL; }; + bool IsBandwidthExceeded (bool isHighBandwidth) const + { + auto limit = isHighBandwidth ? i2p::data::HIGH_BANDWIDTH_LIMIT*1024 : i2p::data::LOW_BANDWIDTH_LIMIT*1024; // convert to bytes + return std::max (m_InBandwidth, m_OutBandwidth) > limit; + } + int GetTerminationTimeout () const { return m_TerminationTimeout; }; void SetTerminationTimeout (int terminationTimeout) { m_TerminationTimeout = terminationTimeout; }; bool IsTerminationTimeoutExpired (uint64_t ts) const - { return ts >= m_LastActivityTimestamp + GetTerminationTimeout (); }; + { + return ts >= m_LastActivityTimestamp + GetTerminationTimeout () || + ts + GetTerminationTimeout () < m_LastActivityTimestamp; + }; - virtual void SendLocalRouterInfo () { SendI2NPMessages ({ CreateDatabaseStoreMsg () }); }; - virtual void SendI2NPMessages (const std::vector >& msgs) = 0; + uint32_t GetCreationTime () const { return m_CreationTime; }; + void SetCreationTime (uint32_t ts) { m_CreationTime = ts; }; // for introducers + uint64_t GetLastActivityTimestamp () const { return m_LastActivityTimestamp; }; + void SetLastActivityTimestamp (uint64_t ts) { m_LastActivityTimestamp = ts; }; + + virtual uint32_t GetRelayTag () const { return 0; }; + virtual void SendLocalRouterInfo (bool update = false) + { + std::list > msgs{ CreateDatabaseStoreMsg () }; + SendI2NPMessages (msgs); + }; + virtual void SendI2NPMessages (std::list >& msgs) = 0; + virtual bool IsEstablished () const = 0; + virtual i2p::data::RouterInfo::SupportedTransports GetTransportType () const = 0; + + private: + + void UpdateBandwidth () + { + int64_t interval = m_LastActivityTimestamp - m_LastBandwidthUpdateTimestamp; + if (interval < 0 || interval > 60*10) // 10 minutes + { + // clock was adjusted, copy new values + m_LastBandWidthUpdateNumSentBytes = m_NumSentBytes; + m_LastBandWidthUpdateNumReceivedBytes = m_NumReceivedBytes; + m_LastBandwidthUpdateTimestamp = m_LastActivityTimestamp; + return; + } + if ((uint64_t)interval > TRANSPORT_SESSION_BANDWIDTH_UPDATE_MIN_INTERVAL) + { + m_OutBandwidth = (m_NumSentBytes - m_LastBandWidthUpdateNumSentBytes)/interval; + m_LastBandWidthUpdateNumSentBytes = m_NumSentBytes; + m_InBandwidth = (m_NumReceivedBytes - m_LastBandWidthUpdateNumReceivedBytes)/interval; + m_LastBandWidthUpdateNumReceivedBytes = m_NumReceivedBytes; + m_LastBandwidthUpdateTimestamp = m_LastActivityTimestamp; + } + } + protected: std::shared_ptr m_RemoteIdentity; - std::shared_ptr m_DHKeysPair; // X - for client and Y - for server - size_t m_NumSentBytes, m_NumReceivedBytes; + mutable std::mutex m_RemoteIdentityMutex; bool m_IsOutgoing; int m_TerminationTimeout; - uint64_t m_LastActivityTimestamp; + uint32_t m_CreationTime; // seconds since epoch + int64_t m_HandshakeInterval; // in milliseconds between SessionRequest->SessionCreated or SessionCreated->SessionConfirmed + + private: + + size_t m_SendQueueSize, m_NumSentBytes, m_NumReceivedBytes, + m_LastBandWidthUpdateNumSentBytes, m_LastBandWidthUpdateNumReceivedBytes; + uint64_t m_LastActivityTimestamp, m_LastBandwidthUpdateTimestamp; + uint32_t m_InBandwidth, m_OutBandwidth; }; } } diff --git a/libi2pd/Transports.cpp b/libi2pd/Transports.cpp index c00e5d52..98dbcd94 100644 --- a/libi2pd/Transports.cpp +++ b/libi2pd/Transports.cpp @@ -1,3 +1,12 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include // for boost::to_lower #include "Log.h" #include "Crypto.h" #include "RouterContext.h" @@ -6,10 +15,7 @@ #include "Transports.h" #include "Config.h" #include "HTTP.h" -#ifdef WITH_EVENTS -#include "Event.h" #include "util.h" -#endif using namespace i2p::data; @@ -17,23 +23,27 @@ namespace i2p { namespace transport { - DHKeysPairSupplier::DHKeysPairSupplier (int size): - m_QueueSize (size), m_IsRunning (false), m_Thread (nullptr) + template + EphemeralKeysSupplier::EphemeralKeysSupplier (int size): + m_QueueSize (size), m_IsRunning (false) { } - DHKeysPairSupplier::~DHKeysPairSupplier () + template + EphemeralKeysSupplier::~EphemeralKeysSupplier () { Stop (); } - void DHKeysPairSupplier::Start () + template + void EphemeralKeysSupplier::Start () { m_IsRunning = true; - m_Thread = new std::thread (std::bind (&DHKeysPairSupplier::Run, this)); + m_Thread.reset (new std::thread (std::bind (&EphemeralKeysSupplier::Run, this))); } - void DHKeysPairSupplier::Stop () + template + void EphemeralKeysSupplier::Stop () { { std::unique_lock l(m_AcquiredMutex); @@ -43,28 +53,38 @@ namespace transport if (m_Thread) { m_Thread->join (); - delete m_Thread; - m_Thread = 0; + m_Thread = nullptr; } + if (!m_Queue.empty ()) + { + // clean up queue + std::queue > tmp; + std::swap (m_Queue, tmp); + } + m_KeysPool.CleanUpMt (); } - void DHKeysPairSupplier::Run () + template + void EphemeralKeysSupplier::Run () { + i2p::util::SetThreadName("Ephemerals"); + while (m_IsRunning) { int num, total = 0; - while ((num = m_QueueSize - (int)m_Queue.size ()) > 0 && total < 10) + while ((num = m_QueueSize - (int)m_Queue.size ()) > 0 && total < m_QueueSize) { - CreateDHKeysPairs (num); + CreateEphemeralKeys (num); total += num; } - if (total >= 10) + if (total > m_QueueSize) { - LogPrint (eLogWarning, "Transports: ", total, " DH keys generated at the time"); + LogPrint (eLogWarning, "Transports: ", total, " ephemeral keys generated at the time"); std::this_thread::sleep_for (std::chrono::seconds(1)); // take a break } else { + m_KeysPool.CleanUpMt (); std::unique_lock l(m_AcquiredMutex); if (!m_IsRunning) break; m_Acquired.wait (l); // wait for element gets acquired @@ -72,24 +92,26 @@ namespace transport } } - void DHKeysPairSupplier::CreateDHKeysPairs (int num) + template + void EphemeralKeysSupplier::CreateEphemeralKeys (int num) { if (num > 0) { for (int i = 0; i < num; i++) { - auto pair = std::make_shared (); + auto pair = m_KeysPool.AcquireSharedMt (); pair->GenerateKeys (); - std::unique_lock l(m_AcquiredMutex); + std::unique_lock l(m_AcquiredMutex); m_Queue.push (pair); } } } - std::shared_ptr DHKeysPairSupplier::Acquire () + template + std::shared_ptr EphemeralKeysSupplier::Acquire () { { - std::unique_lock l(m_AcquiredMutex); + std::unique_lock l(m_AcquiredMutex); if (!m_Queue.empty ()) { auto pair = m_Queue.front (); @@ -99,34 +121,47 @@ namespace transport } } // queue is empty, create new - auto pair = std::make_shared (); + auto pair = m_KeysPool.AcquireSharedMt (); pair->GenerateKeys (); return pair; } - void DHKeysPairSupplier::Return (std::shared_ptr pair) + template + void EphemeralKeysSupplier::Return (std::shared_ptr pair) { if (pair) { - std::unique_lockl(m_AcquiredMutex); + std::unique_lock l(m_AcquiredMutex); if ((int)m_Queue.size () < 2*m_QueueSize) m_Queue.push (pair); } else - LogPrint(eLogError, "Transports: return null DHKeys"); + LogPrint(eLogError, "Transports: Return null keys"); } + void Peer::UpdateParams (std::shared_ptr router) + { + if (router) + { + isHighBandwidth = router->IsHighBandwidth (); + isEligible =(bool)router->GetCompatibleTransports (true) && // reachable + router->GetCongestion () != i2p::data::RouterInfo::eRejectAll && // accepts tunnel + router->IsECIES () && router->GetVersion () >= NETDB_MIN_HIGHBANDWIDTH_VERSION; // not too old + } + } + Transports transports; Transports::Transports (): - m_IsOnline (true), m_IsRunning (false), m_IsNAT (true), m_Thread (nullptr), m_Service (nullptr), - m_Work (nullptr), m_PeerCleanupTimer (nullptr), m_PeerTestTimer (nullptr), - m_NTCPServer (nullptr), m_SSUServer (nullptr), m_NTCP2Server (nullptr), - m_DHKeysPairSupplier (5), // 5 pre-generated keys - m_TotalSentBytes(0), m_TotalReceivedBytes(0), m_TotalTransitTransmittedBytes (0), - m_InBandwidth (0), m_OutBandwidth (0), m_TransitBandwidth(0), - m_LastInBandwidthUpdateBytes (0), m_LastOutBandwidthUpdateBytes (0), - m_LastTransitBandwidthUpdateBytes (0), m_LastBandwidthUpdateTime (0) + m_IsOnline (true), m_IsRunning (false), m_IsNAT (true), m_CheckReserved(true), m_Thread (nullptr), + m_Service (nullptr), m_Work (nullptr), m_PeerCleanupTimer (nullptr), m_PeerTestTimer (nullptr), + m_UpdateBandwidthTimer (nullptr), m_SSU2Server (nullptr), m_NTCP2Server (nullptr), + m_X25519KeysPairSupplier (NUM_X25519_PRE_GENERATED_KEYS), + m_TotalSentBytes (0), m_TotalReceivedBytes (0), m_TotalTransitTransmittedBytes (0), + m_InBandwidth (0), m_OutBandwidth (0), m_TransitBandwidth (0), + m_InBandwidth15s (0), m_OutBandwidth15s (0), m_TransitBandwidth15s (0), + m_InBandwidth5m (0), m_OutBandwidth5m (0), m_TransitBandwidth5m (0), + m_Rng(i2p::util::GetMonotonicMicroseconds () % 1000000LL) { } @@ -137,141 +172,188 @@ namespace transport { delete m_PeerCleanupTimer; m_PeerCleanupTimer = nullptr; delete m_PeerTestTimer; m_PeerTestTimer = nullptr; + delete m_UpdateBandwidthTimer; m_UpdateBandwidthTimer = nullptr; delete m_Work; m_Work = nullptr; delete m_Service; m_Service = nullptr; } } - void Transports::Start (bool enableNTCP, bool enableSSU) + void Transports::Start (bool enableNTCP2, bool enableSSU2) { if (!m_Service) { - m_Service = new boost::asio::io_service (); - m_Work = new boost::asio::io_service::work (*m_Service); + m_Service = new boost::asio::io_context (); + m_Work = new boost::asio::executor_work_guard (m_Service->get_executor ()); m_PeerCleanupTimer = new boost::asio::deadline_timer (*m_Service); m_PeerTestTimer = new boost::asio::deadline_timer (*m_Service); + m_UpdateBandwidthTimer = new boost::asio::deadline_timer (*m_Service); } + bool ipv4; i2p::config::GetOption("ipv4", ipv4); + bool ipv6; i2p::config::GetOption("ipv6", ipv6); i2p::config::GetOption("nat", m_IsNAT); - m_DHKeysPairSupplier.Start (); + m_X25519KeysPairSupplier.Start (); m_IsRunning = true; m_Thread = new std::thread (std::bind (&Transports::Run, this)); - std::string ntcpproxy; i2p::config::GetOption("ntcpproxy", ntcpproxy); + std::string ntcp2proxy; i2p::config::GetOption("ntcp2.proxy", ntcp2proxy); i2p::http::URL proxyurl; - uint16_t softLimit, hardLimit, threads; - i2p::config::GetOption("limits.ntcpsoft", softLimit); - i2p::config::GetOption("limits.ntcphard", hardLimit); - i2p::config::GetOption("limits.ntcpthreads", threads); - if(softLimit > 0 && hardLimit > 0 && softLimit >= hardLimit) + // create NTCP2. TODO: move to acceptor + if (enableNTCP2 || i2p::context.SupportsMesh ()) { - LogPrint(eLogError, "ntcp soft limit must be less than ntcp hard limit"); - return; - } - if(ntcpproxy.size() && enableNTCP) - { - if(proxyurl.parse(ntcpproxy)) + if(!ntcp2proxy.empty() && enableNTCP2) { - if(proxyurl.schema == "socks" || proxyurl.schema == "http") + if(proxyurl.parse(ntcp2proxy)) { - m_NTCPServer = new NTCPServer(threads); - m_NTCPServer->SetSessionLimits(softLimit, hardLimit); - NTCPServer::ProxyType proxytype = NTCPServer::eSocksProxy; - - if (proxyurl.schema == "http") - proxytype = NTCPServer::eHTTPProxy; - m_NTCPServer->UseProxy(proxytype, proxyurl.host, proxyurl.port) ; - m_NTCPServer->Start(); - if(!m_NTCPServer->NetworkIsReady()) + if(proxyurl.schema == "socks" || proxyurl.schema == "http") { - LogPrint(eLogError, "Transports: NTCP failed to start with proxy"); - m_NTCPServer->Stop(); - delete m_NTCPServer; - m_NTCPServer = nullptr; + m_NTCP2Server = new NTCP2Server (); + NTCP2Server::ProxyType proxytype = NTCP2Server::eSocksProxy; + + if (proxyurl.schema == "http") + proxytype = NTCP2Server::eHTTPProxy; + + m_NTCP2Server->UseProxy(proxytype, proxyurl.host, proxyurl.port, proxyurl.user, proxyurl.pass); + i2p::context.SetStatus (eRouterStatusProxy); + if (ipv6) + i2p::context.SetStatusV6 (eRouterStatusProxy); } + else + LogPrint(eLogCritical, "Transports: Unsupported NTCP2 proxy URL ", ntcp2proxy); } else - LogPrint(eLogError, "Transports: unsupported NTCP proxy URL ", ntcpproxy); + LogPrint(eLogCritical, "Transports: Invalid NTCP2 proxy URL ", ntcp2proxy); } else - LogPrint(eLogError, "Transports: invalid NTCP proxy url ", ntcpproxy); - return; + m_NTCP2Server = new NTCP2Server (); } - // create NTCP2. TODO: move to acceptor - bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); - if (ntcp2) - { - m_NTCP2Server = new NTCP2Server (); - m_NTCP2Server->Start (); - } - // create acceptors - auto& addresses = context.GetRouterInfo ().GetAddresses (); - for (const auto& address : addresses) + // create SSU2 server + if (enableSSU2) { - if (!address) continue; - if (m_NTCPServer == nullptr && enableNTCP) + m_SSU2Server = new SSU2Server (); + std::string ssu2proxy; i2p::config::GetOption("ssu2.proxy", ssu2proxy); + if (!ssu2proxy.empty()) { - m_NTCPServer = new NTCPServer (threads); - m_NTCPServer->SetSessionLimits(softLimit, hardLimit); - m_NTCPServer->Start (); - if (!(m_NTCPServer->IsBoundV6() || m_NTCPServer->IsBoundV4())) { - /** failed to bind to NTCP */ - LogPrint(eLogError, "Transports: failed to bind to TCP"); - m_NTCPServer->Stop(); - delete m_NTCPServer; - m_NTCPServer = nullptr; - } - } - - if (address->transportStyle == RouterInfo::eTransportSSU) - { - if (m_SSUServer == nullptr && enableSSU) + if (proxyurl.parse (ssu2proxy) && proxyurl.schema == "socks") { - if (address->host.is_v4()) - m_SSUServer = new SSUServer (address->port); - else - m_SSUServer = new SSUServer (address->host, address->port); - LogPrint (eLogInfo, "Transports: Start listening UDP port ", address->port); - try { - m_SSUServer->Start (); - } catch ( std::exception & ex ) { - LogPrint(eLogError, "Transports: Failed to bind to UDP port", address->port); - delete m_SSUServer; - m_SSUServer = nullptr; - continue; + if (m_SSU2Server->SetProxy (proxyurl.host, proxyurl.port)) + { + i2p::context.SetStatus (eRouterStatusProxy); + if (ipv6) + i2p::context.SetStatusV6 (eRouterStatusProxy); } - DetectExternalIP (); + else + LogPrint(eLogCritical, "Transports: Can't set SSU2 proxy ", ssu2proxy); } else - LogPrint (eLogError, "Transports: SSU server already exists"); + LogPrint(eLogCritical, "Transports: Invalid SSU2 proxy URL ", ssu2proxy); } } - m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5*SESSION_CREATION_TIMEOUT)); + + // bind to interfaces + if (ipv4) + { + std::string address; i2p::config::GetOption("address4", address); + if (!address.empty ()) + { + boost::system::error_code ec; + auto addr = boost::asio::ip::make_address (address, ec); + if (!ec) + { + if (m_NTCP2Server) m_NTCP2Server->SetLocalAddress (addr); + if (m_SSU2Server) m_SSU2Server->SetLocalAddress (addr); + } + } + + if (enableSSU2) + { + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu4", mtu); + if (mtu) + { + if (mtu < (int)SSU2_MIN_PACKET_SIZE) mtu = SSU2_MIN_PACKET_SIZE; + if (mtu > (int)SSU2_MAX_PACKET_SIZE) mtu = SSU2_MAX_PACKET_SIZE; + i2p::context.SetMTU (mtu, true); + } + } + } + + if (ipv6) + { + std::string address; i2p::config::GetOption("address6", address); + if (!address.empty ()) + { + boost::system::error_code ec; + auto addr = boost::asio::ip::make_address (address, ec); + if (!ec) + { + if (m_NTCP2Server) m_NTCP2Server->SetLocalAddress (addr); + if (m_SSU2Server) m_SSU2Server->SetLocalAddress (addr); + } + } + + if (enableSSU2) + { + uint16_t mtu; i2p::config::GetOption ("ssu2.mtu6", mtu); + if (mtu) + { + if (mtu < (int)SSU2_MIN_PACKET_SIZE) mtu = SSU2_MIN_PACKET_SIZE; + if (mtu > (int)SSU2_MAX_PACKET_SIZE) mtu = SSU2_MAX_PACKET_SIZE; + i2p::context.SetMTU (mtu, false); + } + } + } + + bool ygg; i2p::config::GetOption("meshnets.yggdrasil", ygg); + if (ygg) + { + std::string address; i2p::config::GetOption("meshnets.yggaddress", address); + if (!address.empty ()) + { + boost::system::error_code ec; + auto addr = boost::asio::ip::make_address (address, ec); + if (!ec && m_NTCP2Server && i2p::util::net::IsYggdrasilAddress (addr)) + m_NTCP2Server->SetLocalAddress (addr); + } + } + + // start servers + if (m_NTCP2Server) m_NTCP2Server->Start (); + if (m_SSU2Server) m_SSU2Server->Start (); + if (m_SSU2Server) DetectExternalIP (); + + m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5 * SESSION_CREATION_TIMEOUT)); m_PeerCleanupTimer->async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1)); - if (m_IsNAT) - { - m_PeerTestTimer->expires_from_now (boost::posix_time::minutes(PEER_TEST_INTERVAL)); - m_PeerTestTimer->async_wait (std::bind (&Transports::HandlePeerTestTimer, this, std::placeholders::_1)); - } + uint64_t ts = i2p::util::GetMillisecondsSinceEpoch(); + for (int i = 0; i < TRAFFIC_SAMPLE_COUNT; i++) + { + m_TrafficSamples[i].Timestamp = ts - (TRAFFIC_SAMPLE_COUNT - i - 1) * 1000; + m_TrafficSamples[i].TotalReceivedBytes = 0; + m_TrafficSamples[i].TotalSentBytes = 0; + m_TrafficSamples[i].TotalTransitTransmittedBytes = 0; + } + m_TrafficSamplePtr = TRAFFIC_SAMPLE_COUNT - 1; + + m_UpdateBandwidthTimer->expires_from_now (boost::posix_time::seconds(1)); + m_UpdateBandwidthTimer->async_wait (std::bind (&Transports::HandleUpdateBandwidthTimer, this, std::placeholders::_1)); + + if (m_IsNAT) + { + m_PeerTestTimer->expires_from_now (boost::posix_time::seconds(PEER_TEST_INTERVAL + m_Rng() % PEER_TEST_INTERVAL_VARIANCE)); + m_PeerTestTimer->async_wait (std::bind (&Transports::HandlePeerTestTimer, this, std::placeholders::_1)); + } } void Transports::Stop () { if (m_PeerCleanupTimer) m_PeerCleanupTimer->cancel (); if (m_PeerTestTimer) m_PeerTestTimer->cancel (); - m_Peers.clear (); - if (m_SSUServer) + + if (m_SSU2Server) { - m_SSUServer->Stop (); - delete m_SSUServer; - m_SSUServer = nullptr; - } - if (m_NTCPServer) - { - m_NTCPServer->Stop (); - delete m_NTCPServer; - m_NTCPServer = nullptr; + m_SSU2Server->Stop (); + delete m_SSU2Server; + m_SSU2Server = nullptr; } if (m_NTCP2Server) @@ -281,7 +363,7 @@ namespace transport m_NTCP2Server = nullptr; } - m_DHKeysPairSupplier.Stop (); + m_X25519KeysPairSupplier.Stop (); m_IsRunning = false; if (m_Service) m_Service->stop (); if (m_Thread) @@ -290,10 +372,13 @@ namespace transport delete m_Thread; m_Thread = nullptr; } + m_Peers.clear (); } void Transports::Run () { + i2p::util::SetThreadName("Transports"); + while (m_IsRunning && m_Service) { try @@ -302,171 +387,262 @@ namespace transport } catch (std::exception& ex) { - LogPrint (eLogError, "Transports: runtime exception: ", ex.what ()); + LogPrint (eLogError, "Transports: Runtime exception: ", ex.what ()); } } } - void Transports::UpdateBandwidth () + void Transports::UpdateBandwidthValues(int interval, uint32_t& in, uint32_t& out, uint32_t& transit) { - uint64_t ts = i2p::util::GetMillisecondsSinceEpoch (); - if (m_LastBandwidthUpdateTime > 0) + TrafficSample& sample1 = m_TrafficSamples[m_TrafficSamplePtr]; + TrafficSample& sample2 = m_TrafficSamples[(TRAFFIC_SAMPLE_COUNT + m_TrafficSamplePtr - interval) % TRAFFIC_SAMPLE_COUNT]; + auto delta = (int64_t)sample1.Timestamp - (int64_t)sample2.Timestamp; + if (delta <= 0) { - auto delta = ts - m_LastBandwidthUpdateTime; - if (delta > 0) - { - m_InBandwidth = (m_TotalReceivedBytes - m_LastInBandwidthUpdateBytes)*1000/delta; // per second - m_OutBandwidth = (m_TotalSentBytes - m_LastOutBandwidthUpdateBytes)*1000/delta; // per second - m_TransitBandwidth = (m_TotalTransitTransmittedBytes - m_LastTransitBandwidthUpdateBytes)*1000/delta; - } + LogPrint (eLogError, "Transports: Backward clock jump detected, got ", delta, " instead of ", interval * 1000); + return; } - m_LastBandwidthUpdateTime = ts; - m_LastInBandwidthUpdateBytes = m_TotalReceivedBytes; - m_LastOutBandwidthUpdateBytes = m_TotalSentBytes; - m_LastTransitBandwidthUpdateBytes = m_TotalTransitTransmittedBytes; + in = (sample1.TotalReceivedBytes - sample2.TotalReceivedBytes) * 1000 / delta; + out = (sample1.TotalSentBytes - sample2.TotalSentBytes) * 1000 / delta; + transit = (sample1.TotalTransitTransmittedBytes - sample2.TotalTransitTransmittedBytes) * 1000 / delta; } - bool Transports::IsBandwidthExceeded () const + void Transports::HandleUpdateBandwidthTimer (const boost::system::error_code& ecode) { - auto limit = i2p::context.GetBandwidthLimit() * 1024; // convert to bytes - auto bw = std::max (m_InBandwidth, m_OutBandwidth); - return bw > limit; + if (ecode != boost::asio::error::operation_aborted) + { + m_TrafficSamplePtr++; + if (m_TrafficSamplePtr == TRAFFIC_SAMPLE_COUNT) + m_TrafficSamplePtr = 0; + + TrafficSample& sample = m_TrafficSamples[m_TrafficSamplePtr]; + sample.Timestamp = i2p::util::GetMillisecondsSinceEpoch(); + sample.TotalReceivedBytes = m_TotalReceivedBytes; + sample.TotalSentBytes = m_TotalSentBytes; + sample.TotalTransitTransmittedBytes = m_TotalTransitTransmittedBytes; + + UpdateBandwidthValues (1, m_InBandwidth, m_OutBandwidth, m_TransitBandwidth); + UpdateBandwidthValues (15, m_InBandwidth15s, m_OutBandwidth15s, m_TransitBandwidth15s); + UpdateBandwidthValues (300, m_InBandwidth5m, m_OutBandwidth5m, m_TransitBandwidth5m); + + m_UpdateBandwidthTimer->expires_from_now (boost::posix_time::seconds(1)); + m_UpdateBandwidthTimer->async_wait (std::bind (&Transports::HandleUpdateBandwidthTimer, this, std::placeholders::_1)); + } } - bool Transports::IsTransitBandwidthExceeded () const + int Transports::GetCongestionLevel (bool longTerm) const { - auto limit = i2p::context.GetTransitBandwidthLimit() * 1024; // convert to bytes - return m_TransitBandwidth > limit; + auto bwLimit = i2p::context.GetBandwidthLimit () * 1024; // convert to bytes + auto tbwLimit = i2p::context.GetTransitBandwidthLimit () * 1024; // convert to bytes + + if (tbwLimit == 0 || bwLimit == 0) + return CONGESTION_LEVEL_FULL; + + uint32_t bw; + uint32_t tbw; + if (longTerm) + { + bw = std::max (m_InBandwidth5m, m_OutBandwidth5m); + tbw = m_TransitBandwidth5m; + } + else + { + bw = std::max (m_InBandwidth15s, m_OutBandwidth15s); + tbw = m_TransitBandwidth; + } + auto bwCongestionLevel = CONGESTION_LEVEL_FULL * bw / bwLimit; + auto tbwCongestionLevel = CONGESTION_LEVEL_FULL * tbw / tbwLimit; + return std::max (bwCongestionLevel, tbwCongestionLevel); } - void Transports::SendMessage (const i2p::data::IdentHash& ident, std::shared_ptr msg) + std::future > Transports::SendMessage (const i2p::data::IdentHash& ident, std::shared_ptr msg) { - SendMessages (ident, std::vector > {msg }); + if (m_IsOnline) + return SendMessages (ident, { msg }); + return {}; // invalid future } - void Transports::SendMessages (const i2p::data::IdentHash& ident, const std::vector >& msgs) + std::future > Transports::SendMessages (const i2p::data::IdentHash& ident, std::list >&& msgs) { -#ifdef WITH_EVENTS - QueueIntEvent("transport.send", ident.ToBase64(), msgs.size()); -#endif - m_Service->post (std::bind (&Transports::PostMessages, this, ident, msgs)); - } - - void Transports::PostMessages (i2p::data::IdentHash ident, std::vector > msgs) + return boost::asio::post (*m_Service, boost::asio::use_future ([this, ident, msgs = std::move(msgs)] () mutable + { + return PostMessages (ident, msgs); + })); + } + + std::shared_ptr Transports::PostMessages (const i2p::data::IdentHash& ident, std::list >& msgs) { if (ident == i2p::context.GetRouterInfo ().GetIdentHash ()) { // we send it to ourself for (auto& it: msgs) - m_LoopbackHandler.PutNextMessage (it); + m_LoopbackHandler.PutNextMessage (std::move (it)); m_LoopbackHandler.Flush (); - return; + return nullptr; } - if(RoutesRestricted() && ! IsRestrictedPeer(ident)) return; - auto it = m_Peers.find (ident); - if (it == m_Peers.end ()) + if(RoutesRestricted() && !IsRestrictedPeer(ident)) return nullptr; + std::shared_ptr peer; { + std::lock_guard l(m_PeersMutex); + auto it = m_Peers.find (ident); + if (it != m_Peers.end ()) + peer = it->second; + } + if (!peer) + { + // check if not banned + if (i2p::data::IsRouterBanned (ident)) return nullptr; // don't create peer to unreachable router + // try to connect bool connected = false; try { auto r = netdb.FindRouter (ident); - { - std::unique_lock l(m_PeersMutex); - it = m_Peers.insert (std::pair(ident, { 0, r, {}, - i2p::util::GetSecondsSinceEpoch (), {} })).first; + if (r && (r->IsUnreachable () || !r->IsReachableFrom (i2p::context.GetRouterInfo ()))) return nullptr; // router found but non-reachable + + peer = std::make_shared(r, i2p::util::GetSecondsSinceEpoch ()); + { + std::lock_guard l(m_PeersMutex); + peer = m_Peers.emplace (ident, peer).first->second; } - connected = ConnectToPeer (ident, it->second); + if (peer) + connected = ConnectToPeer (ident, peer); } catch (std::exception& ex) { LogPrint (eLogError, "Transports: PostMessages exception:", ex.what ()); } - if (!connected) return; + if (!connected) return nullptr; } - if (!it->second.sessions.empty ()) - it->second.sessions.front ()->SendI2NPMessages (msgs); + + if (!peer) return nullptr; + if (peer->IsConnected ()) + { + auto session = peer->sessions.front (); + if (session) session->SendI2NPMessages (msgs); + return session; + } else { - if (it->second.delayedMessages.size () < MAX_NUM_DELAYED_MESSAGES) + auto sz = peer->delayedMessages.size (); + if (sz < MAX_NUM_DELAYED_MESSAGES) { - for (auto& it1: msgs) - it->second.delayedMessages.push_back (it1); + if (sz < CHECK_PROFILE_NUM_DELAYED_MESSAGES && sz + msgs.size () >= CHECK_PROFILE_NUM_DELAYED_MESSAGES) + { + if (i2p::data::IsRouterBanned (ident)) + { + LogPrint (eLogWarning, "Transports: Router ", ident.ToBase64 (), " is banned. Peer dropped"); + std::lock_guard l(m_PeersMutex); + m_Peers.erase (ident); + return nullptr; + } + } + if (sz > MAX_NUM_DELAYED_MESSAGES/2) + { + for (auto& it1: msgs) + if (it1->onDrop) + it1->Drop (); // drop earlier because we can handle it + else + peer->delayedMessages.push_back (it1); + } + else + peer->delayedMessages.splice (peer->delayedMessages.end (), msgs); } else { - LogPrint (eLogWarning, "Transports: delayed messages queue size exceeds ", MAX_NUM_DELAYED_MESSAGES); - std::unique_lock l(m_PeersMutex); - m_Peers.erase (it); + LogPrint (eLogWarning, "Transports: Delayed messages queue size to ", + ident.ToBase64 (), " exceeds ", MAX_NUM_DELAYED_MESSAGES); + std::lock_guard l(m_PeersMutex); + m_Peers.erase (ident); } } + return nullptr; } - bool Transports::ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer) + bool Transports::ConnectToPeer (const i2p::data::IdentHash& ident, std::shared_ptr peer) { - if (peer.router) // we have RI already + if (!peer->router) // reconnect + { + auto r = netdb.FindRouter (ident); // try to get new one from netdb + if (r) + { + peer->SetRouter (r); + r->CancelBufferToDelete (); + } + } + if (peer->router) // we have RI already { - if (!peer.numAttempts) // NTCP2 + if (peer->priority.empty ()) + SetPriority (peer); + while (peer->numAttempts < (int)peer->priority.size ()) { - peer.numAttempts++; - if (m_NTCP2Server) // we support NTCP2 + auto tr = peer->priority[peer->numAttempts]; + peer->numAttempts++; + switch (tr) { - // NTCP2 have priority over NTCP - auto address = peer.router->GetNTCP2Address (true, !context.SupportsV6 ()); // published only - if (address) + case i2p::data::RouterInfo::eNTCP2V4: + case i2p::data::RouterInfo::eNTCP2V6: { - auto s = std::make_shared (*m_NTCP2Server, peer.router); - m_NTCP2Server->Connect (address->host, address->port, s); - return true; - } - } - } - if (peer.numAttempts == 1) // NTCP1 - { - peer.numAttempts++; - auto address = peer.router->GetNTCPAddress (!context.SupportsV6 ()); - if (address && m_NTCPServer) - { - if (!peer.router->UsesIntroducer () && !peer.router->IsUnreachable ()) - { - if(!m_NTCPServer->ShouldLimit()) + if (!m_NTCP2Server) continue; + std::shared_ptr address = (tr == i2p::data::RouterInfo::eNTCP2V6) ? + peer->router->GetPublishedNTCP2V6Address () : peer->router->GetPublishedNTCP2V4Address (); + if (address && IsInReservedRange(address->host)) + address = nullptr; + if (address) { - auto s = std::make_shared (*m_NTCPServer, peer.router); - if(m_NTCPServer->UsingProxy()) - { - NTCPServer::RemoteAddressType remote = NTCPServer::eIP4Address; - std::string addr = address->host.to_string(); - - if(address->host.is_v6()) - remote = NTCPServer::eIP6Address; - - m_NTCPServer->ConnectWithProxy(addr, address->port, remote, s); - } + auto s = std::make_shared (*m_NTCP2Server, peer->router, address); + if( m_NTCP2Server->UsingProxy()) + m_NTCP2Server->ConnectWithProxy(s); else - m_NTCPServer->Connect (address->host, address->port, s); + m_NTCP2Server->Connect (s); return true; } - else - { - LogPrint(eLogWarning, "Transports: NTCP Limit hit falling back to SSU"); - } + break; } - } - else - LogPrint (eLogDebug, "Transports: NTCP address is not present for ", i2p::data::GetIdentHashAbbreviation (ident), ", trying SSU"); - } - if (peer.numAttempts == 2)// SSU - { - peer.numAttempts++; - if (m_SSUServer && peer.router->IsSSU (!context.SupportsV6 ())) - { - auto address = peer.router->GetSSUAddress (!context.SupportsV6 ()); - m_SSUServer->CreateSession (peer.router, address->host, address->port); - return true; + case i2p::data::RouterInfo::eSSU2V4: + case i2p::data::RouterInfo::eSSU2V6: + { + if (!m_SSU2Server) continue; + std::shared_ptr address = (tr == i2p::data::RouterInfo::eSSU2V6) ? + peer->router->GetSSU2V6Address () : peer->router->GetSSU2V4Address (); + if (address && IsInReservedRange(address->host)) + address = nullptr; + if (address && address->IsReachableSSU ()) + { + if (m_SSU2Server->CreateSession (peer->router, address)) + return true; + } + break; + } + case i2p::data::RouterInfo::eNTCP2V6Mesh: + { + if (!m_NTCP2Server) continue; + auto address = peer->router->GetYggdrasilAddress (); + if (address) + { + auto s = std::make_shared (*m_NTCP2Server, peer->router, address); + m_NTCP2Server->Connect (s); + return true; + } + break; + } + default: + LogPrint (eLogError, "Transports: Unknown transport ", (int)tr); } } - LogPrint (eLogInfo, "Transports: No NTCP or SSU addresses available"); - peer.Done (); - std::unique_lock l(m_PeersMutex); + + LogPrint (eLogInfo, "Transports: No compatible addresses available"); + if (!i2p::context.IsLimitedConnectivity () && peer->router->IsReachableFrom (i2p::context.GetRouterInfo ())) + i2p::data::netdb.SetUnreachable (ident, true); // we are here because all connection attempts failed but router claimed them + peer->Done (); + std::lock_guard l(m_PeersMutex); + m_Peers.erase (ident); + return false; + } + else if (i2p::data::IsRouterBanned (ident)) + { + LogPrint (eLogWarning, "Transports: Router ", ident.ToBase64 (), " is banned. Peer dropped"); + peer->Done (); + std::lock_guard l(m_PeersMutex); m_Peers.erase (ident); return false; } @@ -479,121 +655,236 @@ namespace transport return true; } + void Transports::SetPriority (std::shared_ptr peer) + { + static const std::vector + ntcp2Priority = + { + i2p::data::RouterInfo::eNTCP2V6, + i2p::data::RouterInfo::eNTCP2V4, + i2p::data::RouterInfo::eSSU2V6, + i2p::data::RouterInfo::eSSU2V4, + i2p::data::RouterInfo::eNTCP2V6Mesh + }, + ssu2Priority = + { + i2p::data::RouterInfo::eSSU2V6, + i2p::data::RouterInfo::eSSU2V4, + i2p::data::RouterInfo::eNTCP2V6, + i2p::data::RouterInfo::eNTCP2V4, + i2p::data::RouterInfo::eNTCP2V6Mesh + }; + if (!peer || !peer->router) return; + auto compatibleTransports = context.GetRouterInfo ().GetCompatibleTransports (false) & + peer->router->GetCompatibleTransports (true); + auto directTransports = compatibleTransports & peer->router->GetPublishedTransports (); + peer->numAttempts = 0; + peer->priority.clear (); + + std::shared_ptr profile; + if (peer->router->HasProfile ()) profile = peer->router->GetProfile (); // only if in memory + bool ssu2 = false; // NTCP2 by default + bool isReal = profile ? profile->IsReal () : true; + if (isReal) + { + ssu2 = m_Rng () & 1; // 1/2 + if (ssu2 && !profile) + { + profile = peer->router->GetProfile (); // load profile if necessary + isReal = profile->IsReal (); + if (!isReal) ssu2 = false; // try NTCP2 if router is not confirmed real + } + } + const auto& priority = ssu2 ? ssu2Priority : ntcp2Priority; + if (directTransports) + { + // direct connections have higher priority + if (!isReal && (directTransports & (i2p::data::RouterInfo::eNTCP2V4 | i2p::data::RouterInfo::eNTCP2V6))) + { + // Non-confirmed router and a NTCP2 direct connection is presented + compatibleTransports &= ~directTransports; // exclude SSU2 direct connections + directTransports &= ~(i2p::data::RouterInfo::eSSU2V4 | i2p::data::RouterInfo::eSSU2V6); + } + for (auto transport: priority) + if (transport & directTransports) + peer->priority.push_back (transport); + compatibleTransports &= ~directTransports; + } + if (compatibleTransports) + { + // then remaining + for (auto transport: priority) + if (transport & compatibleTransports) + peer->priority.push_back (transport); + } + if (peer->priority.empty ()) + { + // try recently connected SSU2 if any + auto supportedTransports = context.GetRouterInfo ().GetCompatibleTransports (false) & + peer->router->GetCompatibleTransports (false); + if ((supportedTransports & (i2p::data::RouterInfo::eSSU2V4 | i2p::data::RouterInfo::eSSU2V6)) && + peer->router->HasProfile ()) + { + auto ep = peer->router->GetProfile ()->GetLastEndpoint (); + if (!ep.address ().is_unspecified () && ep.port ()) + { + if (ep.address ().is_v4 ()) + { + if ((supportedTransports & i2p::data::RouterInfo::eSSU2V4) && + m_SSU2Server->IsConnectedRecently (ep, false)) + peer->priority.push_back (i2p::data::RouterInfo::eSSU2V4); + } + else if (ep.address ().is_v6 ()) + { + if ((supportedTransports & i2p::data::RouterInfo::eSSU2V6) && + m_SSU2Server->IsConnectedRecently (ep)) + peer->priority.push_back (i2p::data::RouterInfo::eSSU2V6); + } + } + } + } + } + void Transports::RequestComplete (std::shared_ptr r, const i2p::data::IdentHash& ident) { - m_Service->post (std::bind (&Transports::HandleRequestComplete, this, r, ident)); + boost::asio::post (*m_Service, std::bind (&Transports::HandleRequestComplete, this, r, ident)); } void Transports::HandleRequestComplete (std::shared_ptr r, i2p::data::IdentHash ident) { - auto it = m_Peers.find (ident); - if (it != m_Peers.end ()) + std::shared_ptr peer; { - if (r) + std::lock_guard l(m_PeersMutex); + auto it = m_Peers.find (ident); + if (it != m_Peers.end ()) { - LogPrint (eLogDebug, "Transports: RouterInfo for ", ident.ToBase64 (), " found, Trying to connect"); - it->second.router = r; - ConnectToPeer (ident, it->second); - } - else - { - LogPrint (eLogWarning, "Transports: RouterInfo not found, Failed to send messages"); - std::unique_lock l(m_PeersMutex); - m_Peers.erase (it); - } + if (r) + peer = it->second; + else + m_Peers.erase (it); + } } - } - - void Transports::CloseSession (std::shared_ptr router) - { - if (!router) return; - m_Service->post (std::bind (&Transports::PostCloseSession, this, router)); - } + + if (peer && !peer->router && r) + { + LogPrint (eLogDebug, "Transports: RouterInfo for ", ident.ToBase64 (), " found, trying to connect"); + peer->SetRouter (r); + if (!peer->IsConnected ()) + ConnectToPeer (ident, peer); + } + else if (!r) + LogPrint (eLogInfo, "Transports: RouterInfo not found, failed to send messages"); - void Transports::PostCloseSession (std::shared_ptr router) - { - auto ssuSession = m_SSUServer ? m_SSUServer->FindSession (router) : nullptr; - if (ssuSession) // try SSU first - { - m_SSUServer->DeleteSession (ssuSession); - LogPrint (eLogDebug, "Transports: SSU session closed"); - } - auto ntcpSession = m_NTCPServer ? m_NTCPServer->FindNTCPSession(router->GetIdentHash()) : nullptr; - if (ntcpSession) // try deleting ntcp session too - { - ntcpSession->Terminate (); - LogPrint(eLogDebug, "Transports: NTCP session closed"); - } } void Transports::DetectExternalIP () { if (RoutesRestricted()) { - LogPrint(eLogInfo, "Transports: restricted routes enabled, not detecting ip"); + LogPrint(eLogInfo, "Transports: Restricted routes enabled, not detecting IP"); i2p::context.SetStatus (eRouterStatusOK); return; } - if (m_SSUServer) - { - bool isv4 = i2p::context.SupportsV4 (); - if (m_IsNAT && isv4) - i2p::context.SetStatus (eRouterStatusTesting); - for (int i = 0; i < 5; i++) - { - auto router = i2p::data::netdb.GetRandomPeerTestRouter (isv4); // v4 only if v4 - if (router) - m_SSUServer->CreateSession (router, true, isv4); // peer test - else - { - // if not peer test capable routers found pick any - router = i2p::data::netdb.GetRandomRouter (); - if (router && router->IsSSU ()) - m_SSUServer->CreateSession (router); // no peer test - } - } - } + if (m_SSU2Server) + PeerTest (); else - LogPrint (eLogError, "Transports: Can't detect external IP. SSU is not available"); + LogPrint (eLogWarning, "Transports: Can't detect external IP. SSU or SSU2 is not available"); } - void Transports::PeerTest () + void Transports::PeerTest (bool ipv4, bool ipv6) { - if (RoutesRestricted() || !i2p::context.SupportsV4 ()) return; - if (m_SSUServer) + if (RoutesRestricted() || !m_SSU2Server || m_SSU2Server->UsesProxy ()) return; + if (ipv4 && i2p::context.SupportsV4 ()) { - bool statusChanged = false; + LogPrint (eLogInfo, "Transports: Started peer test IPv4"); + std::unordered_set excluded; + excluded.insert (i2p::context.GetIdentHash ()); // don't pick own router + int testDelay = 0; for (int i = 0; i < 5; i++) { - auto router = i2p::data::netdb.GetRandomPeerTestRouter (true); // v4 only + auto router = i2p::data::netdb.GetRandomSSU2PeerTestRouter (true, excluded); // v4 if (router) { - if (!statusChanged) + if (!i2p::context.GetTesting ()) + { + i2p::context.SetTesting (true); + // send first peer test immediately + m_SSU2Server->StartPeerTest (router, true); + } + else { - statusChanged = true; - i2p::context.SetStatus (eRouterStatusTesting); // first time only - } - m_SSUServer->CreateSession (router, true, true); // peer test v4 + testDelay += PEER_TEST_DELAY_INTERVAL + m_Rng() % PEER_TEST_DELAY_INTERVAL_VARIANCE; + if (m_Service) + { + auto delayTimer = std::make_shared(*m_Service); + delayTimer->expires_from_now (boost::posix_time::milliseconds (testDelay)); + delayTimer->async_wait ( + [this, router, delayTimer](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + m_SSU2Server->StartPeerTest (router, true); + }); + } + } + excluded.insert (router->GetIdentHash ()); } } - if (!statusChanged) - LogPrint (eLogWarning, "Can't find routers for peer test"); + if (excluded.size () <= 1) + LogPrint (eLogWarning, "Transports: Can't find routers for peer test IPv4"); + } + if (ipv6 && i2p::context.SupportsV6 ()) + { + LogPrint (eLogInfo, "Transports: Started peer test IPv6"); + std::unordered_set excluded; + excluded.insert (i2p::context.GetIdentHash ()); // don't pick own router + int testDelay = 0; + for (int i = 0; i < 5; i++) + { + auto router = i2p::data::netdb.GetRandomSSU2PeerTestRouter (false, excluded); // v6 + if (router) + { + if (!i2p::context.GetTestingV6 ()) + { + i2p::context.SetTestingV6 (true); + // send first peer test immediately + m_SSU2Server->StartPeerTest (router, false); + } + else + { + testDelay += PEER_TEST_DELAY_INTERVAL + m_Rng() % PEER_TEST_DELAY_INTERVAL_VARIANCE; + if (m_Service) + { + auto delayTimer = std::make_shared(*m_Service); + delayTimer->expires_from_now (boost::posix_time::milliseconds (testDelay)); + delayTimer->async_wait ( + [this, router, delayTimer](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + m_SSU2Server->StartPeerTest (router, false); + }); + } + } + excluded.insert (router->GetIdentHash ()); + } + } + if (excluded.size () <= 1) + LogPrint (eLogWarning, "Transports: Can't find routers for peer test IPv6"); } } - std::shared_ptr Transports::GetNextDHKeysPair () + std::shared_ptr Transports::GetNextX25519KeysPair () { - return m_DHKeysPairSupplier.Acquire (); + return m_X25519KeysPairSupplier.Acquire (); } - void Transports::ReuseDHKeysPair (std::shared_ptr pair) + void Transports::ReuseX25519KeysPair (std::shared_ptr pair) { - m_DHKeysPairSupplier.Return (pair); + m_X25519KeysPairSupplier.Return (pair); } void Transports::PeerConnected (std::shared_ptr session) { - m_Service->post([session, this]() + boost::asio::post (*m_Service, [session, this]() { auto remoteIdentity = session->GetRemoteIdentity (); if (!remoteIdentity) return; @@ -601,14 +892,36 @@ namespace transport auto it = m_Peers.find (ident); if (it != m_Peers.end ()) { -#ifdef WITH_EVENTS - EmitEvent({{"type" , "transport.connected"}, {"ident", ident.ToBase64()}, {"inbound", "false"}}); -#endif + auto peer = it->second; + if (peer->numAttempts > 1) + { + // exclude failed transports + i2p::data::RouterInfo::CompatibleTransports transports = 0; + int numExcluded = peer->numAttempts - 1; + if (numExcluded > (int)peer->priority.size ()) numExcluded = peer->priority.size (); + for (int i = 0; i < numExcluded; i++) + transports |= peer->priority[i]; + i2p::data::netdb.ExcludeReachableTransports (ident, transports); + } + if (peer->router && peer->numAttempts) + { + auto transport = peer->priority[peer->numAttempts-1]; + if (transport == i2p::data::RouterInfo::eNTCP2V4 || + transport == i2p::data::RouterInfo::eNTCP2V6 || transport == i2p::data::RouterInfo::eNTCP2V6Mesh) + i2p::data::UpdateRouterProfile (ident, + [](std::shared_ptr profile) + { + if (profile) profile->Connected (); // outgoing NTCP2 connection if always real + }); + i2p::data::netdb.SetUnreachable (ident, false); // clear unreachable + } + peer->numAttempts = 0; + peer->router = nullptr; // we don't need RouterInfo after successive connect bool sendDatabaseStore = true; - if (it->second.delayedMessages.size () > 0) + if (it->second->delayedMessages.size () > 0) { // check if first message is our DatabaseStore (publishing) - auto firstMsg = it->second.delayedMessages[0]; + auto firstMsg = peer->delayedMessages.front (); if (firstMsg && firstMsg->GetTypeID () == eI2NPDatabaseStore && i2p::data::IdentHash(firstMsg->GetPayload () + DATABASE_STORE_KEY_OFFSET) == i2p::context.GetIdentHash ()) sendDatabaseStore = false; // we have it in the list already @@ -617,50 +930,68 @@ namespace transport session->SendLocalRouterInfo (); else session->SetTerminationTimeout (10); // most likely it's publishing, no follow-up messages expected, set timeout to 10 seconds - it->second.sessions.push_back (session); - session->SendI2NPMessages (it->second.delayedMessages); - it->second.delayedMessages.clear (); + peer->sessions.push_back (session); + session->SendI2NPMessages (peer->delayedMessages); // send and clear } - else // incoming connection + else // incoming connection or peer test { if(RoutesRestricted() && ! IsRestrictedPeer(ident)) { // not trusted - LogPrint(eLogWarning, "Transports: closing untrusted inbound connection from ", ident.ToBase64()); + LogPrint(eLogWarning, "Transports: Closing untrusted inbound connection from ", ident.ToBase64()); session->Done(); return; } -#ifdef WITH_EVENTS - EmitEvent({{"type" , "transport.connected"}, {"ident", ident.ToBase64()}, {"inbound", "true"}}); -#endif - session->SendI2NPMessages ({ CreateDatabaseStoreMsg () }); // send DatabaseStore - std::unique_lock l(m_PeersMutex); - m_Peers.insert (std::make_pair (ident, Peer{ 0, nullptr, { session }, i2p::util::GetSecondsSinceEpoch (), {} })); + if (!session->IsOutgoing ()) // incoming + { + std::list > msgs{ CreateDatabaseStoreMsg () }; + session->SendI2NPMessages (msgs); // send DatabaseStore + } + auto r = i2p::data::netdb.FindRouter (ident); // router should be in netdb after SessionConfirmed + i2p::data::UpdateRouterProfile (ident, + [](std::shared_ptr profile) + { + if (profile) profile->Connected (); + }); + auto ts = i2p::util::GetSecondsSinceEpoch (); + auto peer = std::make_shared(r, ts); + peer->sessions.push_back (session); + peer->router = nullptr; + std::lock_guard l(m_PeersMutex); + m_Peers.emplace (ident, peer); } }); } void Transports::PeerDisconnected (std::shared_ptr session) { - m_Service->post([session, this]() + boost::asio::post (*m_Service, [session, this]() { auto remoteIdentity = session->GetRemoteIdentity (); if (!remoteIdentity) return; auto ident = remoteIdentity->GetIdentHash (); -#ifdef WITH_EVENTS - EmitEvent({{"type" , "transport.disconnected"}, {"ident", ident.ToBase64()}}); -#endif auto it = m_Peers.find (ident); if (it != m_Peers.end ()) { - it->second.sessions.remove (session); - if (it->second.sessions.empty ()) // TODO: why? + auto peer = it->second; + bool wasConnected = peer->IsConnected (); + peer->sessions.remove (session); + if (!peer->IsConnected ()) { - if (it->second.delayedMessages.size () > 0) - ConnectToPeer (ident, it->second); + if (peer->delayedMessages.size () > 0) + { + if (wasConnected) // we had an active session before + peer->numAttempts = 0; // start over + ConnectToPeer (ident, peer); + } else { - std::unique_lock l(m_PeersMutex); - m_Peers.erase (it); + { + std::lock_guard l(m_PeersMutex); + m_Peers.erase (it); + } + // delete buffer of just disconnected router + auto r = i2p::data::netdb.FindRouter (ident); + if (r && !r->IsUpdated ()) r->ScheduleBufferToDelete (); } } } @@ -669,9 +1000,13 @@ namespace transport bool Transports::IsConnected (const i2p::data::IdentHash& ident) const { - std::unique_lock l(m_PeersMutex); + std::lock_guard l(m_PeersMutex); +#if __cplusplus >= 202002L // C++20 + return m_Peers.contains (ident); +#else auto it = m_Peers.find (ident); return it != m_Peers.end (); +#endif } void Transports::HandlePeerCleanupTimer (const boost::system::error_code& ecode) @@ -681,24 +1016,46 @@ namespace transport auto ts = i2p::util::GetSecondsSinceEpoch (); for (auto it = m_Peers.begin (); it != m_Peers.end (); ) { - if (it->second.sessions.empty () && ts > it->second.creationTime + SESSION_CREATION_TIMEOUT) + it->second->sessions.remove_if ( + [](std::shared_ptr session)->bool + { + return !session || !session->IsEstablished (); + }); + if (!it->second->IsConnected () && ts > it->second->creationTime + SESSION_CREATION_TIMEOUT) { LogPrint (eLogWarning, "Transports: Session to peer ", it->first.ToBase64 (), " has not been created in ", SESSION_CREATION_TIMEOUT, " seconds"); - auto profile = i2p::data::GetRouterProfile(it->first); - if (profile) - { - profile->TunnelNonReplied(); - } - std::unique_lock l(m_PeersMutex); + /* if (!it->second.router) + { + // if router for ident not found mark it unreachable + auto profile = i2p::data::GetRouterProfile (it->first); + if (profile) profile->Unreachable (); + } */ + std::lock_guard l(m_PeersMutex); it = m_Peers.erase (it); } else + { + if (ts > it->second->nextRouterInfoUpdateTime) + { + auto session = it->second->sessions.front (); + if (session) + session->SendLocalRouterInfo (true); + it->second->nextRouterInfoUpdateTime = ts + PEER_ROUTER_INFO_UPDATE_INTERVAL + + m_Rng() % PEER_ROUTER_INFO_UPDATE_INTERVAL_VARIANCE; + } ++it; + } } - UpdateBandwidth (); // TODO: use separate timer(s) for it - if (i2p::context.GetStatus () == eRouterStatusTesting) // if still testing, repeat peer test - DetectExternalIP (); - m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(5*SESSION_CREATION_TIMEOUT)); + bool ipv4Testing = i2p::context.GetTesting (); + if (!ipv4Testing) + ipv4Testing = i2p::context.GetRouterInfo ().IsSSU2V4 () && (i2p::context.GetStatus() == eRouterStatusUnknown); + bool ipv6Testing = i2p::context.GetTestingV6 (); + if (!ipv6Testing) + ipv6Testing = i2p::context.GetRouterInfo ().IsSSU2V6 () && (i2p::context.GetStatusV6() == eRouterStatusUnknown); + // if still testing or unknown, repeat peer test + if (ipv4Testing || ipv6Testing) + PeerTest (ipv4Testing, ipv6Testing); + m_PeerCleanupTimer->expires_from_now (boost::posix_time::seconds(2 * SESSION_CREATION_TIMEOUT + m_Rng() % SESSION_CREATION_TIMEOUT)); m_PeerCleanupTimer->async_wait (std::bind (&Transports::HandlePeerCleanupTimer, this, std::placeholders::_1)); } } @@ -708,91 +1065,340 @@ namespace transport if (ecode != boost::asio::error::operation_aborted) { PeerTest (); - m_PeerTestTimer->expires_from_now (boost::posix_time::minutes(PEER_TEST_INTERVAL)); + m_PeerTestTimer->expires_from_now (boost::posix_time::seconds(PEER_TEST_INTERVAL + m_Rng() % PEER_TEST_INTERVAL_VARIANCE)); m_PeerTestTimer->async_wait (std::bind (&Transports::HandlePeerTestTimer, this, std::placeholders::_1)); } } - std::shared_ptr Transports::GetRandomPeer () const + template + std::shared_ptr Transports::GetRandomPeer (Filter filter) const { - if (m_Peers.empty ()) return nullptr; - std::unique_lock l(m_PeersMutex); - auto it = m_Peers.begin (); - std::advance (it, rand () % m_Peers.size ()); - return it != m_Peers.end () ? it->second.router : nullptr; + if (m_Peers.empty()) return nullptr; + auto ts = i2p::util::GetSecondsSinceEpoch (); + bool found = false; + i2p::data::IdentHash ident; + { + uint16_t inds[3]; + RAND_bytes ((uint8_t *)inds, sizeof (inds)); + std::lock_guard l(m_PeersMutex); + auto count = m_Peers.size (); + if(count == 0) return nullptr; + inds[0] %= count; + auto it = m_Peers.begin (); + std::advance (it, inds[0]); + // try random peer + if (it != m_Peers.end () && filter (it->second)) + { + ident = it->first; + found = true; + } + else + { + // try some peers around + auto it1 = m_Peers.begin (); + if (inds[0]) + { + // before + inds[1] %= inds[0]; + std::advance (it1, (inds[1] + inds[0])/2); + } + else + it1 = it; + auto it2 = it; + if (inds[0] < m_Peers.size () - 1) + { + // after + inds[2] %= (m_Peers.size () - 1 - inds[0]); inds[2] /= 2; + std::advance (it2, inds[2]); + } + // it1 - from, it2 - to + it = it1; + while (it != it2 && it != m_Peers.end ()) + { + if (ts > it->second->lastSelectionTime + PEER_SELECTION_MIN_INTERVAL && + filter (it->second)) + { + ident = it->first; + it->second->lastSelectionTime = ts; + found = true; + break; + } + it++; + } + if (!found) + { + // still not found, try from the beginning + it = m_Peers.begin (); + while (it != it1 && it != m_Peers.end ()) + { + if (ts > it->second->lastSelectionTime + PEER_SELECTION_MIN_INTERVAL && + filter (it->second)) + { + ident = it->first; + it->second->lastSelectionTime = ts; + found = true; + break; + } + it++; + } + if (!found) + { + // still not found, try to the beginning + it = it2; + while (it != m_Peers.end ()) + { + if (ts > it->second->lastSelectionTime + PEER_SELECTION_MIN_INTERVAL && + filter (it->second)) + { + ident = it->first; + it->second->lastSelectionTime = ts; + found = true; + break; + } + it++; + } + } + } + } + } + return found ? i2p::data::netdb.FindRouter (ident) : nullptr; } - void Transports::RestrictRoutesToFamilies(std::set families) + + std::shared_ptr Transports::GetRandomPeer (bool isHighBandwidth) const + { + return GetRandomPeer ( + [isHighBandwidth](std::shared_ptr peer)->bool + { + // connected, not overloaded and not slow + return !peer->router && peer->IsConnected () && peer->isEligible && + peer->sessions.front ()->GetSendQueueSize () <= PEER_ROUTER_INFO_OVERLOAD_QUEUE_SIZE && + !peer->sessions.front ()->IsSlow () && !peer->sessions.front ()->IsBandwidthExceeded (peer->isHighBandwidth) && + (!isHighBandwidth || peer->isHighBandwidth); + }); + } + + void Transports::RestrictRoutesToFamilies(const std::set& families) { std::lock_guard lock(m_FamilyMutex); m_TrustedFamilies.clear(); - for ( const auto& fam : families ) - m_TrustedFamilies.push_back(fam); + for (auto fam : families) + { + boost::to_lower (fam); + auto id = i2p::data::netdb.GetFamilies ().GetFamilyID (fam); + if (id) + m_TrustedFamilies.push_back (id); + } } - void Transports::RestrictRoutesToRouters(std::set routers) + void Transports::RestrictRoutesToRouters(const std::set& routers) { - std::unique_lock lock(m_TrustedRoutersMutex); + std::lock_guard lock(m_TrustedRoutersMutex); m_TrustedRouters.clear(); for (const auto & ri : routers ) - m_TrustedRouters.push_back(ri); + m_TrustedRouters.insert(ri); } - bool Transports::RoutesRestricted() const { - std::unique_lock famlock(m_FamilyMutex); - std::unique_lock routerslock(m_TrustedRoutersMutex); - return m_TrustedFamilies.size() > 0 || m_TrustedRouters.size() > 0; + bool Transports::RoutesRestricted() const + { + { + std::lock_guard routerslock(m_TrustedRoutersMutex); + if (!m_TrustedRouters.empty ()) return true; + } + { + std::lock_guard famlock(m_FamilyMutex); + if (!m_TrustedFamilies.empty ()) return true; + } + return false; } /** XXX: if routes are not restricted this dies */ - std::shared_ptr Transports::GetRestrictedPeer() const + std::shared_ptr Transports::GetRestrictedPeer() { { std::lock_guard l(m_FamilyMutex); - std::string fam; + i2p::data::FamilyID fam = 0; auto sz = m_TrustedFamilies.size(); if(sz > 1) { auto it = m_TrustedFamilies.begin (); - std::advance(it, rand() % sz); + std::advance(it, m_Rng() % sz); fam = *it; - boost::to_lower(fam); } else if (sz == 1) { fam = m_TrustedFamilies[0]; } - if (fam.size()) + if (fam) return i2p::data::netdb.GetRandomRouterInFamily(fam); } { - std::unique_lock l(m_TrustedRoutersMutex); + std::lock_guard l(m_TrustedRoutersMutex); auto sz = m_TrustedRouters.size(); if (sz) { - if(sz == 1) - return i2p::data::netdb.FindRouter(m_TrustedRouters[0]); auto it = m_TrustedRouters.begin(); - std::advance(it, rand() % sz); + if(sz > 1) + std::advance(it, m_Rng() % sz); return i2p::data::netdb.FindRouter(*it); } } return nullptr; } - bool Transports::IsRestrictedPeer(const i2p::data::IdentHash & ih) const + bool Transports::IsTrustedRouter (const i2p::data::IdentHash& ih) const { + if (m_TrustedRouters.empty ()) return false; + std::lock_guard l(m_TrustedRoutersMutex); +#if __cplusplus >= 202002L // C++20 + if (m_TrustedRouters.contains (ih)) +#else + if (m_TrustedRouters.count (ih) > 0) +#endif + return true; + return false; + } + + bool Transports::IsRestrictedPeer(const i2p::data::IdentHash& ih) const + { + if (IsTrustedRouter (ih)) return true; + { - std::unique_lock l(m_TrustedRoutersMutex); - for (const auto & r : m_TrustedRouters ) - if ( r == ih ) return true; - } - { - std::unique_lock l(m_FamilyMutex); + std::lock_guard l(m_FamilyMutex); auto ri = i2p::data::netdb.FindRouter(ih); for (const auto & fam : m_TrustedFamilies) if(ri->IsFamily(fam)) return true; } return false; } + + void Transports::SetOnline (bool online) + { + if (m_IsOnline != online) + { + m_IsOnline = online; + if (online) + PeerTest (); + else + i2p::context.SetError (eRouterErrorOffline); + } + } + + bool Transports::IsInReservedRange (const boost::asio::ip::address& host) const + { + return IsCheckReserved () && i2p::util::net::IsInReservedRange (host); + } + + void InitAddressFromIface () + { + bool ipv6; i2p::config::GetOption("ipv6", ipv6); + bool ipv4; i2p::config::GetOption("ipv4", ipv4); + + // ifname -> address + std::string ifname; i2p::config::GetOption("ifname", ifname); + if (ipv4 && i2p::config::IsDefault ("address4")) + { + std::string ifname4; i2p::config::GetOption("ifname4", ifname4); + if (!ifname4.empty ()) + i2p::config::SetOption ("address4", i2p::util::net::GetInterfaceAddress(ifname4, false).to_string ()); // v4 + else if (!ifname.empty ()) + i2p::config::SetOption ("address4", i2p::util::net::GetInterfaceAddress(ifname, false).to_string ()); // v4 + } + if (ipv6 && i2p::config::IsDefault ("address6")) + { + std::string ifname6; i2p::config::GetOption("ifname6", ifname6); + if (!ifname6.empty ()) + i2p::config::SetOption ("address6", i2p::util::net::GetInterfaceAddress(ifname6, true).to_string ()); // v6 + else if (!ifname.empty ()) + i2p::config::SetOption ("address6", i2p::util::net::GetInterfaceAddress(ifname, true).to_string ()); // v6 + } + } + + void InitTransports () + { + bool ipv6; i2p::config::GetOption("ipv6", ipv6); + bool ipv4; i2p::config::GetOption("ipv4", ipv4); + bool ygg; i2p::config::GetOption("meshnets.yggdrasil", ygg); + uint16_t port; i2p::config::GetOption("port", port); + + boost::asio::ip::address_v6 yggaddr; + if (ygg) + { + std::string yggaddress; i2p::config::GetOption ("meshnets.yggaddress", yggaddress); + if (!yggaddress.empty ()) + { + yggaddr = boost::asio::ip::make_address (yggaddress).to_v6 (); + if (yggaddr.is_unspecified () || !i2p::util::net::IsYggdrasilAddress (yggaddr) || + !i2p::util::net::IsLocalAddress (yggaddr)) + { + LogPrint(eLogWarning, "Transports: Can't find Yggdrasil address ", yggaddress); + ygg = false; + } + } + else + { + yggaddr = i2p::util::net::GetYggdrasilAddress (); + if (yggaddr.is_unspecified ()) + { + LogPrint(eLogWarning, "Transports: Yggdrasil is not running. Disabled"); + ygg = false; + } + } + } + + if (!i2p::config::IsDefault("port")) + { + LogPrint(eLogInfo, "Transports: Accepting incoming connections at port ", port); + i2p::context.UpdatePort (port); + } + i2p::context.SetSupportsV6 (ipv6); + i2p::context.SetSupportsV4 (ipv4); + i2p::context.SetSupportsMesh (ygg, yggaddr); + + bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2); + if (ntcp2) + { + bool published; i2p::config::GetOption("ntcp2.published", published); + if (published) + { + std::string ntcp2proxy; i2p::config::GetOption("ntcp2.proxy", ntcp2proxy); + if (!ntcp2proxy.empty ()) published = false; + } + if (published) + { + uint16_t ntcp2port; i2p::config::GetOption("ntcp2.port", ntcp2port); + if (!ntcp2port) ntcp2port = port; // use standard port + i2p::context.PublishNTCP2Address (ntcp2port, true, ipv4, ipv6, false); // publish + if (ipv6) + { + std::string ipv6Addr; i2p::config::GetOption("ntcp2.addressv6", ipv6Addr); + auto addr = boost::asio::ip::make_address (ipv6Addr).to_v6 (); + if (!addr.is_unspecified () && addr != boost::asio::ip::address_v6::any ()) + i2p::context.UpdateNTCP2V6Address (addr); // set ipv6 address if configured + } + } + else + i2p::context.PublishNTCP2Address (port, false, ipv4, ipv6, false); // unpublish + } + if (ygg) + { + i2p::context.PublishNTCP2Address (port, true, false, false, true); + i2p::context.UpdateNTCP2V6Address (yggaddr); + if (!ipv4 && !ipv6) + i2p::context.SetStatus (eRouterStatusMesh); + } + bool ssu2; i2p::config::GetOption("ssu2.enabled", ssu2); + if (ssu2 && i2p::config::IsDefault ("ssu2.enabled") && !ipv4 && !ipv6) + ssu2 = false; // don't enable ssu2 for yggdrasil only router + if (ssu2) + { + uint16_t ssu2port; i2p::config::GetOption("ssu2.port", ssu2port); + if (!ssu2port && port) ssu2port = port; + bool published; i2p::config::GetOption("ssu2.published", published); + if (published) + i2p::context.PublishSSU2Address (ssu2port, true, ipv4, ipv6); // publish + else + i2p::context.PublishSSU2Address (ssu2port, false, ipv4, ipv6); // unpublish + } + } } } diff --git a/libi2pd/Transports.h b/libi2pd/Transports.h index 798c90a9..fcd2cfc6 100644 --- a/libi2pd/Transports.h +++ b/libi2pd/Transports.h @@ -1,74 +1,131 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TRANSPORTS_H__ #define TRANSPORTS_H__ #include #include +#include #include #include -#include +#include +#include #include #include #include #include #include +#include #include #include "TransportSession.h" -#include "NTCPSession.h" -#include "SSU.h" +#include "SSU2.h" #include "NTCP2.h" #include "RouterInfo.h" #include "I2NPProtocol.h" #include "Identity.h" +#include "util.h" namespace i2p { namespace transport { - class DHKeysPairSupplier + template + class EphemeralKeysSupplier { + // called from this file only, so implementation is in Transports.cpp public: - DHKeysPairSupplier (int size); - ~DHKeysPairSupplier (); + EphemeralKeysSupplier (int size); + ~EphemeralKeysSupplier (); void Start (); void Stop (); - std::shared_ptr Acquire (); - void Return (std::shared_ptr pair); + std::shared_ptr Acquire (); + void Return (std::shared_ptr pair); private: void Run (); - void CreateDHKeysPairs (int num); + void CreateEphemeralKeys (int num); private: const int m_QueueSize; - std::queue > m_Queue; + i2p::util::MemoryPoolMt m_KeysPool; + std::queue > m_Queue; bool m_IsRunning; - std::thread * m_Thread; + std::unique_ptr m_Thread; std::condition_variable m_Acquired; std::mutex m_AcquiredMutex; }; + typedef EphemeralKeysSupplier X25519KeysPairSupplier; + const int PEER_ROUTER_INFO_UPDATE_INTERVAL = 31*60; // in seconds + const int PEER_ROUTER_INFO_UPDATE_INTERVAL_VARIANCE = 7*60; // in seconds + const size_t PEER_ROUTER_INFO_OVERLOAD_QUEUE_SIZE = 25; + const int PEER_SELECTION_MIN_INTERVAL = 20; // in seconds struct Peer { int numAttempts; std::shared_ptr router; std::list > sessions; - uint64_t creationTime; - std::vector > delayedMessages; + uint64_t creationTime, nextRouterInfoUpdateTime, lastSelectionTime; + std::list > delayedMessages; + std::vector priority; + bool isHighBandwidth, isEligible; + Peer (std::shared_ptr r, uint64_t ts): + numAttempts (0), router (r), creationTime (ts), + nextRouterInfoUpdateTime (ts + PEER_ROUTER_INFO_UPDATE_INTERVAL), + lastSelectionTime (0), isHighBandwidth (false), isEligible (false) + { + UpdateParams (router); + } + void Done () { for (auto& it: sessions) it->Done (); + // drop not sent delayed messages + for (auto& it: delayedMessages) + it->Drop (); } + + void SetRouter (std::shared_ptr r) + { + router = r; + UpdateParams (router); + } + + bool IsConnected () const { return !sessions.empty (); } + void UpdateParams (std::shared_ptr router); + }; + + const uint64_t SESSION_CREATION_TIMEOUT = 15; // in seconds + const int PEER_TEST_INTERVAL = 68*60; // in seconds + const int PEER_TEST_INTERVAL_VARIANCE = 3*60; // in seconds + const int PEER_TEST_DELAY_INTERVAL = 20; // in milliseconds + const int PEER_TEST_DELAY_INTERVAL_VARIANCE = 30; // in milliseconds + const int MAX_NUM_DELAYED_MESSAGES = 150; + const int CHECK_PROFILE_NUM_DELAYED_MESSAGES = 15; // check profile after + const int NUM_X25519_PRE_GENERATED_KEYS = 25; // pre-generated x25519 keys pairs + + const int TRAFFIC_SAMPLE_COUNT = 301; // seconds + + struct TrafficSample + { + uint64_t Timestamp; + uint64_t TotalReceivedBytes; + uint64_t TotalSentBytes; + uint64_t TotalTransitTransmittedBytes; }; - const size_t SESSION_CREATION_TIMEOUT = 10; // in seconds - const int PEER_TEST_INTERVAL = 71; // in minutes - const int MAX_NUM_DELAYED_MESSAGES = 50; class Transports { public: @@ -76,23 +133,22 @@ namespace transport Transports (); ~Transports (); - void Start (bool enableNTCP=true, bool enableSSU=true); + void Start (bool enableNTCP2=true, bool enableSSU2=true); void Stop (); + bool IsRunning () const { return m_IsRunning; } - bool IsBoundNTCP() const { return m_NTCPServer != nullptr; } - bool IsBoundSSU() const { return m_SSUServer != nullptr; } + bool IsBoundSSU2() const { return m_SSU2Server != nullptr; } bool IsBoundNTCP2() const { return m_NTCP2Server != nullptr; } bool IsOnline() const { return m_IsOnline; }; - void SetOnline (bool online) { m_IsOnline = online; }; + void SetOnline (bool online); - boost::asio::io_service& GetService () { return *m_Service; }; - std::shared_ptr GetNextDHKeysPair (); - void ReuseDHKeysPair (std::shared_ptr pair); + auto& GetService () { return *m_Service; }; + std::shared_ptr GetNextX25519KeysPair (); + void ReuseX25519KeysPair (std::shared_ptr pair); - void SendMessage (const i2p::data::IdentHash& ident, std::shared_ptr msg); - void SendMessages (const i2p::data::IdentHash& ident, const std::vector >& msgs); - void CloseSession (std::shared_ptr router); + std::future > SendMessage (const i2p::data::IdentHash& ident, std::shared_ptr msg); + std::future > SendMessages (const i2p::data::IdentHash& ident, std::list >&& msgs); void PeerConnected (std::shared_ptr session); void PeerDisconnected (std::shared_ptr session); @@ -104,82 +160,103 @@ namespace transport uint64_t GetTotalReceivedBytes () const { return m_TotalReceivedBytes; }; uint64_t GetTotalTransitTransmittedBytes () const { return m_TotalTransitTransmittedBytes; } void UpdateTotalTransitTransmittedBytes (uint32_t add) { m_TotalTransitTransmittedBytes += add; }; - uint32_t GetInBandwidth () const { return m_InBandwidth; }; + uint32_t GetInBandwidth () const { return m_InBandwidth; }; uint32_t GetOutBandwidth () const { return m_OutBandwidth; }; uint32_t GetTransitBandwidth () const { return m_TransitBandwidth; }; - bool IsBandwidthExceeded () const; - bool IsTransitBandwidthExceeded () const; + uint32_t GetInBandwidth15s () const { return m_InBandwidth15s; }; + uint32_t GetOutBandwidth15s () const { return m_OutBandwidth15s; }; + uint32_t GetTransitBandwidth15s () const { return m_TransitBandwidth15s; }; + int GetCongestionLevel (bool longTerm) const; size_t GetNumPeers () const { return m_Peers.size (); }; - std::shared_ptr GetRandomPeer () const; + std::shared_ptr GetRandomPeer (bool isHighBandwidth) const; - /** get a trusted first hop for restricted routes */ - std::shared_ptr GetRestrictedPeer() const; - /** do we want to use restricted routes? */ - bool RoutesRestricted() const; - /** restrict routes to use only these router families for first hops */ - void RestrictRoutesToFamilies(std::set families); - /** restrict routes to use only these routers for first hops */ - void RestrictRoutesToRouters(std::set routers); + /** get a trusted first hop for restricted routes */ + std::shared_ptr GetRestrictedPeer(); + /** do we want to use restricted routes? */ + bool RoutesRestricted() const; + /** restrict routes to use only these router families for first hops */ + void RestrictRoutesToFamilies(const std::set& families); + /** restrict routes to use only these routers for first hops */ + void RestrictRoutesToRouters(const std::set& routers); - bool IsRestrictedPeer(const i2p::data::IdentHash & ident) const; + bool IsTrustedRouter (const i2p::data::IdentHash& ih) const; + bool IsRestrictedPeer(const i2p::data::IdentHash& ih) const; - void PeerTest (); + void PeerTest (bool ipv4 = true, bool ipv6 = true); + + void SetCheckReserved (bool check) { m_CheckReserved = check; }; + bool IsCheckReserved () const { return m_CheckReserved; }; + bool IsInReservedRange (const boost::asio::ip::address& host) const; private: void Run (); void RequestComplete (std::shared_ptr r, const i2p::data::IdentHash& ident); void HandleRequestComplete (std::shared_ptr r, i2p::data::IdentHash ident); - void PostMessages (i2p::data::IdentHash ident, std::vector > msgs); - void PostCloseSession (std::shared_ptr router); - bool ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer); + std::shared_ptr PostMessages (const i2p::data::IdentHash& ident, std::list >& msgs); + bool ConnectToPeer (const i2p::data::IdentHash& ident, std::shared_ptr peer); + void SetPriority (std::shared_ptr peer); void HandlePeerCleanupTimer (const boost::system::error_code& ecode); void HandlePeerTestTimer (const boost::system::error_code& ecode); + void HandleUpdateBandwidthTimer (const boost::system::error_code& ecode); + void UpdateBandwidthValues (int interval, uint32_t& in, uint32_t& out, uint32_t& transit); - void UpdateBandwidth (); void DetectExternalIP (); + template + std::shared_ptr GetRandomPeer (Filter filter) const; + private: - bool m_IsOnline, m_IsRunning, m_IsNAT; + volatile bool m_IsOnline; + bool m_IsRunning, m_IsNAT, m_CheckReserved; std::thread * m_Thread; - boost::asio::io_service * m_Service; - boost::asio::io_service::work * m_Work; - boost::asio::deadline_timer * m_PeerCleanupTimer, * m_PeerTestTimer; + boost::asio::io_context * m_Service; + boost::asio::executor_work_guard * m_Work; + boost::asio::deadline_timer * m_PeerCleanupTimer, * m_PeerTestTimer, * m_UpdateBandwidthTimer; - NTCPServer * m_NTCPServer; - SSUServer * m_SSUServer; + SSU2Server * m_SSU2Server; NTCP2Server * m_NTCP2Server; mutable std::mutex m_PeersMutex; - std::map m_Peers; + std::unordered_map > m_Peers; - DHKeysPairSupplier m_DHKeysPairSupplier; + X25519KeysPairSupplier m_X25519KeysPairSupplier; std::atomic m_TotalSentBytes, m_TotalReceivedBytes, m_TotalTransitTransmittedBytes; - uint32_t m_InBandwidth, m_OutBandwidth, m_TransitBandwidth; // bytes per second - uint64_t m_LastInBandwidthUpdateBytes, m_LastOutBandwidthUpdateBytes, m_LastTransitBandwidthUpdateBytes; - uint64_t m_LastBandwidthUpdateTime; + + TrafficSample m_TrafficSamples[TRAFFIC_SAMPLE_COUNT]; + int m_TrafficSamplePtr; + + // Bandwidth per second + uint32_t m_InBandwidth, m_OutBandwidth, m_TransitBandwidth; + // Bandwidth during last 15 seconds + uint32_t m_InBandwidth15s, m_OutBandwidth15s, m_TransitBandwidth15s; + // Bandwidth during last 5 minutes + uint32_t m_InBandwidth5m, m_OutBandwidth5m, m_TransitBandwidth5m; /** which router families to trust for first hops */ - std::vector m_TrustedFamilies; + std::vector m_TrustedFamilies; mutable std::mutex m_FamilyMutex; /** which routers for first hop to trust */ - std::vector m_TrustedRouters; + std::unordered_set m_TrustedRouters; mutable std::mutex m_TrustedRoutersMutex; i2p::I2NPMessagesHandler m_LoopbackHandler; + std::mt19937 m_Rng; public: // for HTTP only - const NTCPServer * GetNTCPServer () const { return m_NTCPServer; }; - const SSUServer * GetSSUServer () const { return m_SSUServer; }; const NTCP2Server * GetNTCP2Server () const { return m_NTCP2Server; }; + const SSU2Server * GetSSU2Server () const { return m_SSU2Server; }; const decltype(m_Peers)& GetPeers () const { return m_Peers; }; }; extern Transports transports; + + void InitAddressFromIface (); + void InitTransports (); } } diff --git a/libi2pd/Tunnel.cpp b/libi2pd/Tunnel.cpp index 66620717..1b317121 100644 --- a/libi2pd/Tunnel.cpp +++ b/libi2pd/Tunnel.cpp @@ -1,5 +1,14 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "I2PEndian.h" +#include #include #include #include @@ -13,9 +22,8 @@ #include "Config.h" #include "Tunnel.h" #include "TunnelPool.h" -#ifdef WITH_EVENTS -#include "Event.h" -#endif +#include "util.h" +#include "ECIESX25519AEADRatchetSession.h" namespace i2p { @@ -23,8 +31,9 @@ namespace tunnel { Tunnel::Tunnel (std::shared_ptr config): TunnelBase (config->GetTunnelID (), config->GetNextTunnelID (), config->GetNextIdentHash ()), - m_Config (config), m_Pool (nullptr), m_State (eTunnelStatePending), m_IsRecreated (false), - m_Latency (0) + m_Config (config), m_IsShortBuildMessage (false), m_Pool (nullptr), + m_State (eTunnelStatePending), m_FarEndTransports (i2p::data::RouterInfo::eAllTransports), + m_IsRecreated (false), m_Latency (UNKNOWN_LATENCY) { } @@ -34,24 +43,21 @@ namespace tunnel void Tunnel::Build (uint32_t replyMsgID, std::shared_ptr outboundTunnel) { -#ifdef WITH_EVENTS - std::string peers = i2p::context.GetIdentity()->GetIdentHash().ToBase64(); -#endif auto numHops = m_Config->GetNumHops (); - int numRecords = numHops <= STANDARD_NUM_RECORDS ? STANDARD_NUM_RECORDS : numHops; - auto msg = NewI2NPShortMessage (); + const int numRecords = numHops <= STANDARD_NUM_RECORDS ? STANDARD_NUM_RECORDS : MAX_NUM_RECORDS; + auto msg = numRecords <= STANDARD_NUM_RECORDS ? NewI2NPShortMessage () : NewI2NPMessage (); *msg->GetPayload () = numRecords; - msg->len += numRecords*TUNNEL_BUILD_RECORD_SIZE + 1; + const size_t recordSize = m_Config->IsShort () ? SHORT_TUNNEL_BUILD_RECORD_SIZE : TUNNEL_BUILD_RECORD_SIZE; + msg->len += numRecords*recordSize + 1; // shuffle records std::vector recordIndicies; for (int i = 0; i < numRecords; i++) recordIndicies.push_back(i); - std::random_shuffle (recordIndicies.begin(), recordIndicies.end()); + std::shuffle (recordIndicies.begin(), recordIndicies.end(), m_Pool ? m_Pool->GetRng () : std::mt19937(std::random_device()())); // create real records uint8_t * records = msg->GetPayload () + 1; TunnelHopConfig * hop = m_Config->GetFirstHop (); int i = 0; - BN_CTX * ctx = BN_CTX_new (); while (hop) { uint32_t msgID; @@ -59,116 +65,157 @@ namespace tunnel RAND_bytes ((uint8_t *)&msgID, 4); else msgID = replyMsgID; - int idx = recordIndicies[i]; - hop->CreateBuildRequestRecord (records + idx*TUNNEL_BUILD_RECORD_SIZE, msgID, ctx); - hop->recordIndex = idx; - i++; -#ifdef WITH_EVENTS - peers += ":" + hop->ident->GetIdentHash().ToBase64(); -#endif + hop->recordIndex = recordIndicies[i]; i++; + hop->CreateBuildRequestRecord (records, msgID); hop = hop->next; } - BN_CTX_free (ctx); -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnel.build", this, peers); -#endif // fill up fake records with random data for (int i = numHops; i < numRecords; i++) { int idx = recordIndicies[i]; - RAND_bytes (records + idx*TUNNEL_BUILD_RECORD_SIZE, TUNNEL_BUILD_RECORD_SIZE); + RAND_bytes (records + idx*recordSize, recordSize); } // decrypt real records - i2p::crypto::CBCDecryption decryption; hop = m_Config->GetLastHop ()->prev; while (hop) { - decryption.SetKey (hop->replyKey); // decrypt records after current hop TunnelHopConfig * hop1 = hop->next; while (hop1) { - decryption.SetIV (hop->replyIV); - uint8_t * record = records + hop1->recordIndex*TUNNEL_BUILD_RECORD_SIZE; - decryption.Decrypt(record, TUNNEL_BUILD_RECORD_SIZE, record); + hop->DecryptRecord (records, hop1->recordIndex); hop1 = hop1->next; } hop = hop->prev; } - msg->FillI2NPMessageHeader (eI2NPVariableTunnelBuild); - + msg->FillI2NPMessageHeader (m_Config->IsShort () ? eI2NPShortTunnelBuild : eI2NPVariableTunnelBuild); + auto s = shared_from_this (); + msg->onDrop = [s]() + { + LogPrint (eLogInfo, "I2NP: Tunnel ", s->GetTunnelID (), " request was not sent"); + s->SetState (i2p::tunnel::eTunnelStateBuildFailed); + }; + // send message if (outboundTunnel) - outboundTunnel->SendTunnelDataMsg (GetNextIdentHash (), 0, msg); + { + if (m_Config->IsShort ()) + { + auto ident = m_Config->GetFirstHop () ? m_Config->GetFirstHop ()->ident : nullptr; + if (ident && ident->GetIdentHash () != outboundTunnel->GetEndpointIdentHash ()) // don't encrypt if IBGW = OBEP + { + auto msg1 = i2p::garlic::WrapECIESX25519MessageForRouter (msg, ident->GetEncryptionPublicKey ()); + if (msg1) msg = msg1; + } + } + outboundTunnel->SendTunnelDataMsgTo (GetNextIdentHash (), 0, msg); + } else + { + if (m_Config->IsShort () && m_Config->GetLastHop () && + m_Config->GetLastHop ()->ident->GetIdentHash () != m_Config->GetLastHop ()->nextIdent) + { + // add garlic key/tag for reply + uint8_t key[32]; + uint64_t tag = m_Config->GetLastHop ()->GetGarlicKey (key); + if (m_Pool && m_Pool->GetLocalDestination ()) + m_Pool->GetLocalDestination ()->SubmitECIESx25519Key (key, tag); + else + i2p::context.SubmitECIESx25519Key (key, tag); + } i2p::transport::transports.SendMessage (GetNextIdentHash (), msg); + } } bool Tunnel::HandleTunnelBuildResponse (uint8_t * msg, size_t len) { - LogPrint (eLogDebug, "Tunnel: TunnelBuildResponse ", (int)msg[0], " records."); - - i2p::crypto::CBCDecryption decryption; + int num = msg[0]; + LogPrint (eLogDebug, "Tunnel: TunnelBuildResponse ", num, " records."); + if (num > MAX_NUM_RECORDS) + { + LogPrint (eLogError, "Tunnel: Too many records in TunnelBuildResponse", num); + return false; + } + if (len < num*m_Config->GetRecordSize () + 1) + { + LogPrint (eLogError, "Tunnel: TunnelBuildResponse of ", num, " records is too short ", len); + return false; + } + TunnelHopConfig * hop = m_Config->GetLastHop (); while (hop) { - decryption.SetKey (hop->replyKey); - // decrypt records before and including current hop - TunnelHopConfig * hop1 = hop; + // decrypt current hop + if (hop->recordIndex >= 0 && hop->recordIndex < msg[0]) + { + if (!hop->DecryptBuildResponseRecord (msg + 1)) + return false; + } + else + { + LogPrint (eLogWarning, "Tunnel: Hop index ", hop->recordIndex, " is out of range"); + return false; + } + + // decrypt records before current hop + TunnelHopConfig * hop1 = hop->prev; while (hop1) { auto idx = hop1->recordIndex; - if (idx >= 0 && idx < msg[0]) - { - uint8_t * record = msg + 1 + idx*TUNNEL_BUILD_RECORD_SIZE; - decryption.SetIV (hop->replyIV); - decryption.Decrypt(record, TUNNEL_BUILD_RECORD_SIZE, record); - } + if (idx >= 0 && idx < num) + hop->DecryptRecord (msg + 1, idx); else - LogPrint (eLogWarning, "Tunnel: hop index ", idx, " is out of range"); + LogPrint (eLogWarning, "Tunnel: Hop index ", idx, " is out of range"); hop1 = hop1->prev; } hop = hop->prev; } bool established = true; + size_t numHops = 0; hop = m_Config->GetFirstHop (); while (hop) { - const uint8_t * record = msg + 1 + hop->recordIndex*TUNNEL_BUILD_RECORD_SIZE; - uint8_t ret = record[BUILD_RESPONSE_RECORD_RET_OFFSET]; + uint8_t ret = hop->GetRetCode (msg + 1); LogPrint (eLogDebug, "Tunnel: Build response ret code=", (int)ret); - auto profile = i2p::data::netdb.FindRouterProfile (hop->ident->GetIdentHash ()); - if (profile) - profile->TunnelBuildResponse (ret); + if (hop->ident) + i2p::data::UpdateRouterProfile (hop->ident->GetIdentHash (), + [ret](std::shared_ptr profile) + { + if (profile) profile->TunnelBuildResponse (ret); + }); if (ret) // if any of participants declined the tunnel is not established established = false; hop = hop->next; + numHops++; } if (established) { // create tunnel decryptions from layer and iv keys in reverse order + m_Hops.resize (numHops); hop = m_Config->GetLastHop (); + int i = 0; while (hop) { - auto tunnelHop = new TunnelHop; - tunnelHop->ident = hop->ident; - tunnelHop->decryption.SetKeys (hop->layerKey, hop->ivKey); - m_Hops.push_back (std::unique_ptr(tunnelHop)); + m_Hops[i].ident = hop->ident; + m_Hops[i].decryption.SetKeys (hop->layerKey, hop->ivKey); hop = hop->prev; + i++; } + m_IsShortBuildMessage = m_Config->IsShort (); + m_FarEndTransports = m_Config->GetFarEndTransports (); m_Config = nullptr; } if (established) m_State = eTunnelStateEstablished; return established; } - bool Tunnel::LatencyFitsRange(uint64_t lower, uint64_t upper) const + bool Tunnel::LatencyFitsRange(int lowerbound, int upperbound) const { auto latency = GetMeanLatency(); - return latency >= lower && latency <= upper; + return latency >= lowerbound && latency <= upperbound; } void Tunnel::EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out) @@ -177,7 +224,7 @@ namespace tunnel uint8_t * outPayload = out->GetPayload () + 4; for (auto& it: m_Hops) { - it->decryption.Decrypt (inPayload, outPayload); + it.decryption.Decrypt (inPayload, outPayload); inPayload = outPayload; } } @@ -198,45 +245,57 @@ namespace tunnel { // hops are in inverted order std::vector > ret; - for (auto& it: m_Hops) - ret.push_back (it->ident); + for (const auto& it: m_Hops) + ret.push_back (it.ident); return ret; } void Tunnel::SetState(TunnelState state) { m_State = state; -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnel.state", this, state); -#endif } - - void Tunnel::PrintHops (std::stringstream& s) const + void Tunnel::VisitTunnelHops(TunnelHopVisitor v) { - // hops are in inverted order, we must print in direct order + // hops are in inverted order, we must return in direct order for (auto it = m_Hops.rbegin (); it != m_Hops.rend (); it++) + v((*it).ident); + } + + void InboundTunnel::HandleTunnelDataMsg (std::shared_ptr&& msg) + { + if (!IsEstablished () && GetState () != eTunnelStateExpiring) + { + // incoming messages means a tunnel is alive + SetState (eTunnelStateEstablished); + auto pool = GetTunnelPool (); + if (pool) + { + // update LeaseSet + auto dest = pool->GetLocalDestination (); + if (dest) dest->SetLeaseSetUpdated (true); + } + } + EncryptTunnelMsg (msg, msg); + msg->from = GetSharedFromThis (); + m_Endpoint.HandleDecryptedTunnelDataMsg (msg); + } + + bool InboundTunnel::Recreate () + { + if (!IsRecreated ()) { - s << " ⇒ "; - s << i2p::data::GetIdentHashAbbreviation ((*it)->ident->GetIdentHash ()); + auto pool = GetTunnelPool (); + if (pool) + { + SetRecreated (true); + pool->RecreateInboundTunnel (std::static_pointer_cast(shared_from_this ())); + return true; + } } - } - - void InboundTunnel::HandleTunnelDataMsg (std::shared_ptr msg) - { - if (IsFailed ()) SetState (eTunnelStateEstablished); // incoming messages means a tunnel is alive - auto newMsg = CreateEmptyTunnelDataMsg (); - EncryptTunnelMsg (msg, newMsg); - newMsg->from = shared_from_this (); - m_Endpoint.HandleDecryptedTunnelDataMsg (newMsg); - } - - void InboundTunnel::Print (std::stringstream& s) const - { - PrintHops (s); - s << " ⇒ " << GetTunnelID () << ":me"; - } - + return false; + } + ZeroHopsInboundTunnel::ZeroHopsInboundTunnel (): InboundTunnel (std::make_shared ()), m_NumReceivedBytes (0) @@ -248,38 +307,39 @@ namespace tunnel if (msg) { m_NumReceivedBytes += msg->GetLength (); - msg->from = shared_from_this (); + msg->from = GetSharedFromThis (); HandleI2NPMessage (msg); } } - void ZeroHopsInboundTunnel::Print (std::stringstream& s) const - { - s << " ⇒ " << GetTunnelID () << ":me"; - } - - void OutboundTunnel::SendTunnelDataMsg (const uint8_t * gwHash, uint32_t gwTunnel, std::shared_ptr msg) + void OutboundTunnel::SendTunnelDataMsgTo (const uint8_t * gwHash, uint32_t gwTunnel, std::shared_ptr msg) { TunnelMessageBlock block; + block.tunnelID = 0; // Initialize tunnelID to a default value + if (gwHash) { block.hash = gwHash; if (gwTunnel) { block.deliveryType = eDeliveryTypeTunnel; - block.tunnelID = gwTunnel; + block.tunnelID = gwTunnel; // Set tunnelID only if gwTunnel is non-zero } else + { block.deliveryType = eDeliveryTypeRouter; + } } else + { block.deliveryType = eDeliveryTypeLocal; + } + block.data = msg; - - SendTunnelDataMsg ({block}); + SendTunnelDataMsgs({block}); } - void OutboundTunnel::SendTunnelDataMsg (const std::vector& msgs) + void OutboundTunnel::SendTunnelDataMsgs (const std::vector& msgs) { std::unique_lock l(m_SendMutex); for (auto& it : msgs) @@ -287,32 +347,42 @@ namespace tunnel m_Gateway.SendBuffer (); } - void OutboundTunnel::HandleTunnelDataMsg (std::shared_ptr tunnelMsg) + void OutboundTunnel::HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) { - LogPrint (eLogError, "Tunnel: incoming message for outbound tunnel ", GetTunnelID ()); + LogPrint (eLogError, "Tunnel: Incoming message for outbound tunnel ", GetTunnelID ()); } - void OutboundTunnel::Print (std::stringstream& s) const + bool OutboundTunnel::Recreate () { - s << GetTunnelID () << ":me"; - PrintHops (s); - s << " ⇒ "; + if (!IsRecreated ()) + { + auto pool = GetTunnelPool (); + if (pool) + { + SetRecreated (true); + pool->RecreateOutboundTunnel (std::static_pointer_cast(shared_from_this ())); + return true; + } + } + return false; } - + ZeroHopsOutboundTunnel::ZeroHopsOutboundTunnel (): OutboundTunnel (std::make_shared ()), m_NumSentBytes (0) { } - void ZeroHopsOutboundTunnel::SendTunnelDataMsg (const std::vector& msgs) + void ZeroHopsOutboundTunnel::SendTunnelDataMsgs (const std::vector& msgs) { for (auto& msg : msgs) { + if (!msg.data) continue; + m_NumSentBytes += msg.data->GetLength (); switch (msg.deliveryType) { case eDeliveryTypeLocal: - i2p::HandleI2NPMessage (msg.data); + HandleI2NPMessage (msg.data); break; case eDeliveryTypeTunnel: i2p::transport::transports.SendMessage (msg.hash, i2p::CreateTunnelGatewayMsg (msg.tunnelID, msg.data)); @@ -326,30 +396,42 @@ namespace tunnel } } - void ZeroHopsOutboundTunnel::Print (std::stringstream& s) const - { - s << GetTunnelID () << ":me ⇒ "; - } - Tunnels tunnels; - Tunnels::Tunnels (): m_IsRunning (false), m_Thread (nullptr), - m_NumSuccesiveTunnelCreations (0), m_NumFailedTunnelCreations (0) + Tunnels::Tunnels (): m_IsRunning (false), m_Thread (nullptr), m_MaxNumTransitTunnels (DEFAULT_MAX_NUM_TRANSIT_TUNNELS), + m_TotalNumSuccesiveTunnelCreations (0), m_TotalNumFailedTunnelCreations (0), // for normal average + m_TunnelCreationSuccessRate (TCSR_START_VALUE), m_TunnelCreationAttemptsNum(0), + m_Rng(i2p::util::GetMonotonicMicroseconds ()%1000000LL) { } Tunnels::~Tunnels () { + DeleteTunnelPool(m_ExploratoryPool); } std::shared_ptr Tunnels::GetTunnel (uint32_t tunnelID) { + std::lock_guard l(m_TunnelsMutex); auto it = m_Tunnels.find(tunnelID); if (it != m_Tunnels.end ()) return it->second; return nullptr; } + bool Tunnels::AddTunnel (std::shared_ptr tunnel) + { + if (!tunnel) return false; + std::lock_guard l(m_TunnelsMutex); + return m_Tunnels.emplace (tunnel->GetTunnelID (), tunnel).second; + } + + void Tunnels::RemoveTunnel (uint32_t tunnelID) + { + std::lock_guard l(m_TunnelsMutex); + m_Tunnels.erase (tunnelID); + } + std::shared_ptr Tunnels::GetPendingInboundTunnel (uint32_t replyMsgID) { return GetPendingTunnel (replyMsgID, m_PendingInboundTunnels); @@ -391,7 +473,7 @@ namespace tunnel std::shared_ptr Tunnels::GetNextOutboundTunnel () { if (m_OutboundTunnels.empty ()) return nullptr; - uint32_t ind = rand () % m_OutboundTunnels.size (), i = 0; + uint32_t ind = m_Rng () % m_OutboundTunnels.size (), i = 0; std::shared_ptr tunnel; for (const auto& it: m_OutboundTunnels) { @@ -405,10 +487,12 @@ namespace tunnel return tunnel; } - std::shared_ptr Tunnels::CreateTunnelPool (int numInboundHops, - int numOutboundHops, int numInboundTunnels, int numOutboundTunnels) + std::shared_ptr Tunnels::CreateTunnelPool (int numInboundHops, + int numOutboundHops, int numInboundTunnels, int numOutboundTunnels, + int inboundVariance, int outboundVariance, bool isHighBandwidth) { - auto pool = std::make_shared (numInboundHops, numOutboundHops, numInboundTunnels, numOutboundTunnels); + auto pool = std::make_shared (numInboundHops, numOutboundHops, + numInboundTunnels, numOutboundTunnels, inboundVariance, outboundVariance, isHighBandwidth); std::unique_lock l(m_PoolsMutex); m_Pools.push_back (pool); return pool; @@ -435,22 +519,16 @@ namespace tunnel } } - void Tunnels::AddTransitTunnel (std::shared_ptr tunnel) - { - if (m_Tunnels.emplace (tunnel->GetTunnelID (), tunnel).second) - m_TransitTunnels.push_back (tunnel); - else - LogPrint (eLogError, "Tunnel: tunnel with id ", tunnel->GetTunnelID (), " already exists"); - } - void Tunnels::Start () { m_IsRunning = true; m_Thread = new std::thread (std::bind (&Tunnels::Run, this)); + m_TransitTunnels.Start (); } void Tunnels::Stop () { + m_TransitTunnels.Stop (); m_IsRunning = false; m_Queue.WakeUp (); if (m_Thread) @@ -463,20 +541,25 @@ namespace tunnel void Tunnels::Run () { + i2p::util::SetThreadName("Tunnels"); std::this_thread::sleep_for (std::chrono::seconds(1)); // wait for other parts are ready - uint64_t lastTs = 0; + uint64_t lastTs = 0, lastPoolsTs = 0, lastMemoryPoolTs = 0; + std::list > msgs; while (m_IsRunning) { try { - auto msg = m_Queue.GetNextWithTimeout (1000); // 1 sec - if (msg) + if (m_Queue.Wait (1,0)) // 1 sec { + m_Queue.GetWholeQueue (msgs); + int numMsgs = 0; uint32_t prevTunnelID = 0, tunnelID = 0; std::shared_ptr prevTunnel; - do + while (!msgs.empty ()) { + auto msg = msgs.front (); msgs.pop_front (); + if (!msg) continue; std::shared_ptr tunnel; uint8_t typeID = msg->GetTypeID (); switch (typeID) @@ -495,47 +578,76 @@ namespace tunnel if (tunnel) { if (typeID == eI2NPTunnelData) - tunnel->HandleTunnelDataMsg (msg); + tunnel->HandleTunnelDataMsg (std::move (msg)); else // tunnel gateway assumed HandleTunnelGatewayMsg (tunnel, msg); } else - LogPrint (eLogWarning, "Tunnel: tunnel not found, tunnelID=", tunnelID, " previousTunnelID=", prevTunnelID, " type=", (int)typeID); + LogPrint (eLogWarning, "Tunnel: Tunnel not found, tunnelID=", tunnelID, " previousTunnelID=", prevTunnelID, " type=", (int)typeID); break; } + case eI2NPShortTunnelBuild: + HandleShortTunnelBuildMsg (msg); + break; case eI2NPVariableTunnelBuild: + HandleVariableTunnelBuildMsg (msg); + break; + case eI2NPShortTunnelBuildReply: + HandleTunnelBuildReplyMsg (msg, true); + break; case eI2NPVariableTunnelBuildReply: + HandleTunnelBuildReplyMsg (msg, false); + break; case eI2NPTunnelBuild: case eI2NPTunnelBuildReply: - HandleI2NPMessage (msg->GetBuffer (), msg->GetLength ()); - break; + LogPrint (eLogWarning, "Tunnel: TunnelBuild is too old for ECIES router"); + break; default: - LogPrint (eLogWarning, "Tunnel: unexpected message type ", (int) typeID); + LogPrint (eLogWarning, "Tunnel: Unexpected message type ", (int) typeID); } - msg = m_Queue.Get (); - if (msg) - { - prevTunnelID = tunnelID; - prevTunnel = tunnel; - } - else if (tunnel) - tunnel->FlushTunnelDataMsgs (); + prevTunnelID = tunnelID; + prevTunnel = tunnel; + numMsgs++; + + if (msgs.empty ()) + { + if (numMsgs < MAX_TUNNEL_MSGS_BATCH_SIZE && !m_Queue.IsEmpty ()) + m_Queue.GetWholeQueue (msgs); // try more + else if (tunnel) + tunnel->FlushTunnelDataMsgs (); // otherwise flush last + } } - while (msg); } - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); - if (ts - lastTs >= 15) // manage tunnels every 15 seconds + if (i2p::transport::transports.IsOnline()) { - ManageTunnels (); - lastTs = ts; + uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + if (ts - lastTs >= TUNNEL_MANAGE_INTERVAL || // manage tunnels every 15 seconds + ts + TUNNEL_MANAGE_INTERVAL < lastTs) + { + ManageTunnels (ts); + lastTs = ts; + } + if (ts - lastPoolsTs >= TUNNEL_POOLS_MANAGE_INTERVAL || // manage pools every 5 seconds + ts + TUNNEL_POOLS_MANAGE_INTERVAL < lastPoolsTs) + { + ManageTunnelPools (ts); + lastPoolsTs = ts; + } + if (ts - lastMemoryPoolTs >= TUNNEL_MEMORY_POOL_MANAGE_INTERVAL || + ts + TUNNEL_MEMORY_POOL_MANAGE_INTERVAL < lastMemoryPoolTs) // manage memory pool every 2 minutes + { + m_I2NPTunnelEndpointMessagesMemoryPool.CleanUpMt (); + m_I2NPTunnelMessagesMemoryPool.CleanUpMt (); + lastMemoryPoolTs = ts; + } } } catch (std::exception& ex) { - LogPrint (eLogError, "Tunnel: runtime exception: ", ex.what ()); + LogPrint (eLogError, "Tunnel: Runtime exception: ", ex.what ()); } } } @@ -544,7 +656,7 @@ namespace tunnel { if (!tunnel) { - LogPrint (eLogError, "Tunnel: missing tunnel for gateway"); + LogPrint (eLogError, "Tunnel: Missing tunnel for gateway"); return; } const uint8_t * payload = msg->GetPayload (); @@ -553,50 +665,124 @@ namespace tunnel msg->offset += I2NP_HEADER_SIZE + TUNNEL_GATEWAY_HEADER_SIZE; if (msg->offset + len > msg->len) { - LogPrint (eLogError, "Tunnel: gateway payload ", (int)len, " exceeds message length ", (int)msg->len); + LogPrint (eLogError, "Tunnel: Gateway payload ", (int)len, " exceeds message length ", (int)msg->len); return; } msg->len = msg->offset + len; auto typeID = msg->GetTypeID (); - LogPrint (eLogDebug, "Tunnel: gateway of ", (int) len, " bytes for tunnel ", tunnel->GetTunnelID (), ", msg type ", (int)typeID); + LogPrint (eLogDebug, "Tunnel: Gateway of ", (int) len, " bytes for tunnel ", tunnel->GetTunnelID (), ", msg type ", (int)typeID); - if (IsRouterInfoMsg (msg) || typeID == eI2NPDatabaseSearchReply) - // transit DatabaseStore my contain new/updated RI - // or DatabaseSearchReply with new routers - i2p::data::netdb.PostI2NPMsg (CopyI2NPMessage (msg)); tunnel->SendTunnelDataMsg (msg); } - void Tunnels::ManageTunnels () + void Tunnels::HandleShortTunnelBuildMsg (std::shared_ptr msg) { - ManagePendingTunnels (); - ManageInboundTunnels (); - ManageOutboundTunnels (); - ManageTransitTunnels (); - ManageTunnelPools (); + if (!msg) return; + auto tunnel = GetPendingInboundTunnel (msg->GetMsgID()); // replyMsgID + if (tunnel) + { + // endpoint of inbound tunnel + LogPrint (eLogDebug, "Tunnel: ShortTunnelBuild reply for tunnel ", tunnel->GetTunnelID ()); + if (tunnel->HandleTunnelBuildResponse (msg->GetPayload(), msg->GetPayloadLength())) + { + LogPrint (eLogInfo, "Tunnel: Inbound tunnel ", tunnel->GetTunnelID (), " has been created"); + tunnel->SetState (eTunnelStateEstablished); + AddInboundTunnel (tunnel); + } + else + { + LogPrint (eLogInfo, "Tunnel: Inbound tunnel ", tunnel->GetTunnelID (), " has been declined"); + tunnel->SetState (eTunnelStateBuildFailed); + } + return; + } + else + m_TransitTunnels.PostTransitTunnelBuildMsg (std::move (msg)); + } + + void Tunnels::HandleVariableTunnelBuildMsg (std::shared_ptr msg) + { + auto tunnel = GetPendingInboundTunnel (msg->GetMsgID()); // replyMsgID + if (tunnel) + { + // endpoint of inbound tunnel + LogPrint (eLogDebug, "Tunnel: VariableTunnelBuild reply for tunnel ", tunnel->GetTunnelID ()); + if (tunnel->HandleTunnelBuildResponse (msg->GetPayload(), msg->GetPayloadLength())) + { + LogPrint (eLogInfo, "Tunnel: Inbound tunnel ", tunnel->GetTunnelID (), " has been created"); + tunnel->SetState (eTunnelStateEstablished); + AddInboundTunnel (tunnel); + } + else + { + LogPrint (eLogInfo, "Tunnel: Inbound tunnel ", tunnel->GetTunnelID (), " has been declined"); + tunnel->SetState (eTunnelStateBuildFailed); + } + } + else + m_TransitTunnels.PostTransitTunnelBuildMsg (std::move (msg)); + } + + void Tunnels::HandleTunnelBuildReplyMsg (std::shared_ptr msg, bool isShort) + { + auto tunnel = GetPendingOutboundTunnel (msg->GetMsgID()); // replyMsgID + if (tunnel) + { + // reply for outbound tunnel + LogPrint (eLogDebug, "Tunnel: TunnelBuildReply for tunnel ", tunnel->GetTunnelID ()); + if (tunnel->HandleTunnelBuildResponse (msg->GetPayload(), msg->GetPayloadLength())) + { + LogPrint (eLogInfo, "Tunnel: Outbound tunnel ", tunnel->GetTunnelID (), " has been created"); + tunnel->SetState (eTunnelStateEstablished); + AddOutboundTunnel (tunnel); + } + else + { + LogPrint (eLogInfo, "Tunnel: Outbound tunnel ", tunnel->GetTunnelID (), " has been declined"); + tunnel->SetState (eTunnelStateBuildFailed); + } + } + else + LogPrint (eLogWarning, "Tunnel: Pending tunnel for message ", msg->GetMsgID(), " not found"); + + } + + void Tunnels::ManageTunnels (uint64_t ts) + { + ManagePendingTunnels (ts); + std::vector > tunnelsToRecreate; + ManageInboundTunnels (ts, tunnelsToRecreate); + ManageOutboundTunnels (ts, tunnelsToRecreate); + // rec-create in random order + if (!tunnelsToRecreate.empty ()) + { + if (tunnelsToRecreate.size () > 1) + std::shuffle (tunnelsToRecreate.begin(), tunnelsToRecreate.end(), m_Rng); + for (auto& it: tunnelsToRecreate) + it->Recreate (); + } } - void Tunnels::ManagePendingTunnels () + void Tunnels::ManagePendingTunnels (uint64_t ts) { - ManagePendingTunnels (m_PendingInboundTunnels); - ManagePendingTunnels (m_PendingOutboundTunnels); + ManagePendingTunnels (m_PendingInboundTunnels, ts); + ManagePendingTunnels (m_PendingOutboundTunnels, ts); } template - void Tunnels::ManagePendingTunnels (PendingTunnels& pendingTunnels) + void Tunnels::ManagePendingTunnels (PendingTunnels& pendingTunnels, uint64_t ts) { // check pending tunnel. delete failed or timeout - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); for (auto it = pendingTunnels.begin (); it != pendingTunnels.end ();) { auto tunnel = it->second; - auto pool = tunnel->GetTunnelPool(); switch (tunnel->GetState ()) { case eTunnelStatePending: - if (ts > tunnel->GetCreationTime () + TUNNEL_CREATION_TIMEOUT) + if (ts > tunnel->GetCreationTime () + TUNNEL_CREATION_TIMEOUT || + ts + TUNNEL_CREATION_TIMEOUT < tunnel->GetCreationTime ()) { - LogPrint (eLogDebug, "Tunnel: pending build request ", it->first, " timeout, deleted"); + LogPrint (eLogDebug, "Tunnel: Pending build request ", it->first, " timeout, deleted"); // update stats auto config = tunnel->GetTunnelConfig (); if (config) @@ -605,36 +791,25 @@ namespace tunnel while (hop) { if (hop->ident) - { - auto profile = i2p::data::netdb.FindRouterProfile (hop->ident->GetIdentHash ()); - if (profile) - profile->TunnelNonReplied (); - } + i2p::data::UpdateRouterProfile (hop->ident->GetIdentHash (), + [](std::shared_ptr profile) + { + if (profile) profile->TunnelNonReplied (); + }); hop = hop->next; } } -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnel.state", tunnel.get(), eTunnelStateBuildFailed); -#endif - // for i2lua - if(pool) pool->OnTunnelBuildResult(tunnel, eBuildResultTimeout); // delete it = pendingTunnels.erase (it); - m_NumFailedTunnelCreations++; + FailedTunnelCreation(); } else ++it; break; case eTunnelStateBuildFailed: - LogPrint (eLogDebug, "Tunnel: pending build request ", it->first, " failed, deleted"); -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnel.state", tunnel.get(), eTunnelStateBuildFailed); -#endif - // for i2lua - if(pool) pool->OnTunnelBuildResult(tunnel, eBuildResultRejected); - + LogPrint (eLogDebug, "Tunnel: Pending build request ", it->first, " failed, deleted"); it = pendingTunnels.erase (it); - m_NumFailedTunnelCreations++; + FailedTunnelCreation(); break; case eTunnelStateBuildReplyReceived: // intermediate state, will be either established of build failed @@ -643,118 +818,108 @@ namespace tunnel default: // success it = pendingTunnels.erase (it); - m_NumSuccesiveTunnelCreations++; + SuccesiveTunnelCreation(); } } } - void Tunnels::ManageOutboundTunnels () + void Tunnels::ManageOutboundTunnels (uint64_t ts, std::vector >& toRecreate) { - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + for (auto it = m_OutboundTunnels.begin (); it != m_OutboundTunnels.end ();) { - for (auto it = m_OutboundTunnels.begin (); it != m_OutboundTunnels.end ();) + auto tunnel = *it; + if (tunnel->IsFailed () || ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT || + ts + TUNNEL_EXPIRATION_TIMEOUT < tunnel->GetCreationTime ()) { - auto tunnel = *it; - if (ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) + LogPrint (eLogDebug, "Tunnel: Tunnel with id ", tunnel->GetTunnelID (), " expired or failed"); + auto pool = tunnel->GetTunnelPool (); + if (pool) + pool->TunnelExpired (tunnel); + // we don't have outbound tunnels in m_Tunnels + it = m_OutboundTunnels.erase (it); + } + else + { + if (tunnel->IsEstablished ()) { - LogPrint (eLogDebug, "Tunnel: tunnel with id ", tunnel->GetTunnelID (), " expired"); - auto pool = tunnel->GetTunnelPool (); - if (pool) - pool->TunnelExpired (tunnel); - // we don't have outbound tunnels in m_Tunnels - it = m_OutboundTunnels.erase (it); - } - else - { - if (tunnel->IsEstablished ()) + if (!tunnel->IsRecreated () && ts + TUNNEL_RECREATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) { - if (!tunnel->IsRecreated () && ts + TUNNEL_RECREATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) - { - auto pool = tunnel->GetTunnelPool (); - // let it die if the tunnel pool has been reconfigured and this is old - if (pool && tunnel->GetNumHops() == pool->GetNumOutboundHops()) - { - tunnel->SetIsRecreated (); - pool->RecreateOutboundTunnel (tunnel); - } - } - if (ts + TUNNEL_EXPIRATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) - tunnel->SetState (eTunnelStateExpiring); + auto pool = tunnel->GetTunnelPool (); + // let it die if the tunnel pool has been reconfigured and this is old + if (pool && tunnel->GetNumHops() == pool->GetNumOutboundHops()) + toRecreate.push_back (tunnel); } - ++it; + if (ts + TUNNEL_EXPIRATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) + tunnel->SetState (eTunnelStateExpiring); } + ++it; } } if (m_OutboundTunnels.size () < 3) { - // trying to create one more oubound tunnel + // trying to create one more outbound tunnel auto inboundTunnel = GetNextInboundTunnel (); auto router = i2p::transport::transports.RoutesRestricted() ? i2p::transport::transports.GetRestrictedPeer() : - i2p::data::netdb.GetRandomRouter (); + i2p::data::netdb.GetRandomRouter (i2p::context.GetSharedRouterInfo (), false, true, false); // reachable by us if (!inboundTunnel || !router) return; - LogPrint (eLogDebug, "Tunnel: creating one hop outbound tunnel"); + LogPrint (eLogDebug, "Tunnel: Creating one hop outbound tunnel"); CreateTunnel ( std::make_shared (std::vector > { router->GetRouterIdentity () }, - inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()) + inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash (), false), nullptr ); } } - void Tunnels::ManageInboundTunnels () + void Tunnels::ManageInboundTunnels (uint64_t ts, std::vector >& toRecreate) { - uint64_t ts = i2p::util::GetSecondsSinceEpoch (); + for (auto it = m_InboundTunnels.begin (); it != m_InboundTunnels.end ();) { - for (auto it = m_InboundTunnels.begin (); it != m_InboundTunnels.end ();) + auto tunnel = *it; + if (tunnel->IsFailed () || ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT || + ts + TUNNEL_EXPIRATION_TIMEOUT < tunnel->GetCreationTime ()) { - auto tunnel = *it; - if (ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) + LogPrint (eLogDebug, "Tunnel: Tunnel with id ", tunnel->GetTunnelID (), " expired or failed"); + auto pool = tunnel->GetTunnelPool (); + if (pool) + pool->TunnelExpired (tunnel); + RemoveTunnel (tunnel->GetTunnelID ()); + it = m_InboundTunnels.erase (it); + } + else + { + if (tunnel->IsEstablished ()) { - LogPrint (eLogDebug, "Tunnel: tunnel with id ", tunnel->GetTunnelID (), " expired"); - auto pool = tunnel->GetTunnelPool (); - if (pool) - pool->TunnelExpired (tunnel); - m_Tunnels.erase (tunnel->GetTunnelID ()); - it = m_InboundTunnels.erase (it); - } - else - { - if (tunnel->IsEstablished ()) + if (!tunnel->IsRecreated () && ts + TUNNEL_RECREATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) { - if (!tunnel->IsRecreated () && ts + TUNNEL_RECREATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) - { - auto pool = tunnel->GetTunnelPool (); - // let it die if the tunnel pool was reconfigured and has different number of hops - if (pool && tunnel->GetNumHops() == pool->GetNumInboundHops()) - { - tunnel->SetIsRecreated (); - pool->RecreateInboundTunnel (tunnel); - } - } - - if (ts + TUNNEL_EXPIRATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) - tunnel->SetState (eTunnelStateExpiring); - else // we don't need to cleanup expiring tunnels - tunnel->Cleanup (); + auto pool = tunnel->GetTunnelPool (); + // let it die if the tunnel pool was reconfigured and has different number of hops + if (pool && tunnel->GetNumHops() == pool->GetNumInboundHops()) + toRecreate.push_back (tunnel); } - it++; + + if (ts + TUNNEL_EXPIRATION_THRESHOLD > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) + tunnel->SetState (eTunnelStateExpiring); + else // we don't need to cleanup expiring tunnels + tunnel->Cleanup (); } + it++; } } if (m_InboundTunnels.empty ()) { LogPrint (eLogDebug, "Tunnel: Creating zero hops inbound tunnel"); - CreateZeroHopsInboundTunnel (); - CreateZeroHopsOutboundTunnel (); + CreateZeroHopsInboundTunnel (nullptr); + CreateZeroHopsOutboundTunnel (nullptr); if (!m_ExploratoryPool) { int ibLen; i2p::config::GetOption("exploratory.inbound.length", ibLen); int obLen; i2p::config::GetOption("exploratory.outbound.length", obLen); int ibNum; i2p::config::GetOption("exploratory.inbound.quantity", ibNum); int obNum; i2p::config::GetOption("exploratory.outbound.quantity", obNum); - m_ExploratoryPool = CreateTunnelPool (ibLen, obLen, ibNum, obNum); + m_ExploratoryPool = CreateTunnelPool (ibLen, obLen, ibNum, obNum, 0, 0, false); m_ExploratoryPool->SetLocalDestination (i2p::context.GetSharedDestination ()); } return; @@ -765,48 +930,26 @@ namespace tunnel // trying to create one more inbound tunnel auto router = i2p::transport::transports.RoutesRestricted() ? i2p::transport::transports.GetRestrictedPeer() : - i2p::data::netdb.GetRandomRouter (); + // should be reachable by us because we send build request directly + i2p::data::netdb.GetRandomRouter (i2p::context.GetSharedRouterInfo (), false, true, false); if (!router) { - LogPrint (eLogWarning, "Tunnel: can't find any router, skip creating tunnel"); + LogPrint (eLogWarning, "Tunnel: Can't find any router, skip creating tunnel"); return; } - LogPrint (eLogDebug, "Tunnel: creating one hop inbound tunnel"); + LogPrint (eLogDebug, "Tunnel: Creating one hop inbound tunnel"); CreateTunnel ( - std::make_shared (std::vector > { router->GetRouterIdentity () }) + std::make_shared (std::vector > { router->GetRouterIdentity () }, false), nullptr ); } } - void Tunnels::ManageTransitTunnels () - { - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - for (auto it = m_TransitTunnels.begin (); it != m_TransitTunnels.end ();) - { - auto tunnel = *it; - if (ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT) - { - LogPrint (eLogDebug, "Tunnel: Transit tunnel with id ", tunnel->GetTunnelID (), " expired"); - m_Tunnels.erase (tunnel->GetTunnelID ()); - it = m_TransitTunnels.erase (it); - } - else - { - tunnel->Cleanup (); - it++; - } - } - } - - void Tunnels::ManageTunnelPools () + void Tunnels::ManageTunnelPools (uint64_t ts) { std::unique_lock l(m_PoolsMutex); for (auto& pool : m_Pools) { if (pool && pool->IsActive ()) - { - pool->CreateTunnels (); - pool->TestTunnels (); - } + pool->ManageTunnels (ts); } } @@ -815,15 +958,17 @@ namespace tunnel if (msg) m_Queue.Put (msg); } - void Tunnels::PostTunnelData (const std::vector >& msgs) + void Tunnels::PostTunnelData (std::list >& msgs) { m_Queue.Put (msgs); } template - std::shared_ptr Tunnels::CreateTunnel (std::shared_ptr config, std::shared_ptr outboundTunnel) + std::shared_ptr Tunnels::CreateTunnel (std::shared_ptr config, + std::shared_ptr pool, std::shared_ptr outboundTunnel) { auto newTunnel = std::make_shared (config); + newTunnel->SetTunnelPool (pool); uint32_t replyMsgID; RAND_bytes ((uint8_t *)&replyMsgID, 4); AddPendingTunnel (replyMsgID, newTunnel); @@ -831,20 +976,21 @@ namespace tunnel return newTunnel; } - std::shared_ptr Tunnels::CreateInboundTunnel (std::shared_ptr config, std::shared_ptr outboundTunnel) + std::shared_ptr Tunnels::CreateInboundTunnel (std::shared_ptr config, + std::shared_ptr pool, std::shared_ptr outboundTunnel) { if (config) - return CreateTunnel(config, outboundTunnel); + return CreateTunnel(config, pool, outboundTunnel); else - return CreateZeroHopsInboundTunnel (); + return CreateZeroHopsInboundTunnel (pool); } - std::shared_ptr Tunnels::CreateOutboundTunnel (std::shared_ptr config) + std::shared_ptr Tunnels::CreateOutboundTunnel (std::shared_ptr config, std::shared_ptr pool) { if (config) - return CreateTunnel(config); + return CreateTunnel(config, pool); else - return CreateZeroHopsOutboundTunnel (); + return CreateZeroHopsOutboundTunnel (pool); } void Tunnels::AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr tunnel) @@ -870,7 +1016,7 @@ namespace tunnel void Tunnels::AddInboundTunnel (std::shared_ptr newTunnel) { - if (m_Tunnels.emplace (newTunnel->GetTunnelID (), newTunnel).second) + if (AddTunnel (newTunnel)) { m_InboundTunnels.push_back (newTunnel); auto pool = newTunnel->GetTunnelPool (); @@ -878,7 +1024,7 @@ namespace tunnel { // build symmetric outbound tunnel CreateTunnel (std::make_shared(newTunnel->GetInvertedPeers (), - newTunnel->GetNextTunnelID (), newTunnel->GetNextIdentHash ()), + newTunnel->GetNextTunnelID (), newTunnel->GetNextIdentHash (), false), nullptr, GetNextOutboundTunnel ()); } else @@ -890,45 +1036,56 @@ namespace tunnel } } else - LogPrint (eLogError, "Tunnel: tunnel with id ", newTunnel->GetTunnelID (), " already exists"); + LogPrint (eLogError, "Tunnel: Tunnel with id ", newTunnel->GetTunnelID (), " already exists"); } - std::shared_ptr Tunnels::CreateZeroHopsInboundTunnel () + std::shared_ptr Tunnels::CreateZeroHopsInboundTunnel (std::shared_ptr pool) { auto inboundTunnel = std::make_shared (); + inboundTunnel->SetTunnelPool (pool); inboundTunnel->SetState (eTunnelStateEstablished); m_InboundTunnels.push_back (inboundTunnel); - m_Tunnels[inboundTunnel->GetTunnelID ()] = inboundTunnel; + AddTunnel (inboundTunnel); return inboundTunnel; } - std::shared_ptr Tunnels::CreateZeroHopsOutboundTunnel () + std::shared_ptr Tunnels::CreateZeroHopsOutboundTunnel (std::shared_ptr pool) { auto outboundTunnel = std::make_shared (); + outboundTunnel->SetTunnelPool (pool); outboundTunnel->SetState (eTunnelStateEstablished); m_OutboundTunnels.push_back (outboundTunnel); // we don't insert into m_Tunnels return outboundTunnel; } + std::shared_ptr Tunnels::NewI2NPTunnelMessage (bool endpoint) + { + if (endpoint) + { + // should fit two tunnel message + tunnel gateway header, enough for one garlic encrypted streaming packet + auto msg = m_I2NPTunnelEndpointMessagesMemoryPool.AcquireSharedMt (); + msg->Align (6); + msg->offset += TUNNEL_GATEWAY_HEADER_SIZE; // reserve room for TunnelGateway header + return msg; + } + else + { + auto msg = m_I2NPTunnelMessagesMemoryPool.AcquireSharedMt (); + msg->Align (12); + return msg; + } + } + int Tunnels::GetTransitTunnelsExpirationTimeout () { - int timeout = 0; - uint32_t ts = i2p::util::GetSecondsSinceEpoch (); - // TODO: possible race condition with I2PControl - for (const auto& it : m_TransitTunnels) - { - int t = it->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT - ts; - if (t > timeout) timeout = t; - } - return timeout; + return m_TransitTunnels.GetTransitTunnelsExpirationTimeout (); } size_t Tunnels::CountTransitTunnels() const { - // TODO: locking - return m_TransitTunnels.size(); + return m_TransitTunnels.GetNumTransitTunnels (); } size_t Tunnels::CountInboundTunnels() const @@ -942,5 +1099,14 @@ namespace tunnel // TODO: locking return m_OutboundTunnels.size(); } + + void Tunnels::SetMaxNumTransitTunnels (uint32_t maxNumTransitTunnels) + { + if (maxNumTransitTunnels > 0 && m_MaxNumTransitTunnels != maxNumTransitTunnels) + { + LogPrint (eLogDebug, "Tunnel: Max number of transit tunnels set to ", maxNumTransitTunnels); + m_MaxNumTransitTunnels = maxNumTransitTunnels; + } + } } } diff --git a/libi2pd/Tunnel.h b/libi2pd/Tunnel.h index 3244faad..5d21cd8b 100644 --- a/libi2pd/Tunnel.h +++ b/libi2pd/Tunnel.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_H__ #define TUNNEL_H__ @@ -10,6 +18,8 @@ #include #include #include +#include +#include "util.h" #include "Queue.h" #include "Crypto.h" #include "TunnelConfig.h" @@ -19,54 +29,30 @@ #include "TunnelGateway.h" #include "TunnelBase.h" #include "I2NPProtocol.h" -#include "Event.h" namespace i2p { namespace tunnel { - - template - static void EmitTunnelEvent(const std::string & ev, const TunnelT & t) - { -#ifdef WITH_EVENTS - EmitEvent({{"type", ev}, {"tid", std::to_string(t->GetTunnelID())}}); -#else - (void) ev; - (void) t; -#endif - } - - template - static void EmitTunnelEvent(const std::string & ev, TunnelT * t, const T & val) - { -#ifdef WITH_EVENTS - EmitEvent({{"type", ev}, {"tid", std::to_string(t->GetTunnelID())}, {"value", std::to_string(val)}, {"inbound", std::to_string(t->IsInbound())}}); -#else - (void) ev; - (void) t; - (void) val; -#endif - } - - template - static void EmitTunnelEvent(const std::string & ev, TunnelT * t, const std::string & val) - { -#ifdef WITH_EVENTS - EmitEvent({{"type", ev}, {"tid", std::to_string(t->GetTunnelID())}, {"value", val}, {"inbound", std::to_string(t->IsInbound())}}); -#else - (void) ev; - (void) t; - (void) val; -#endif - } - - const int TUNNEL_EXPIRATION_TIMEOUT = 660; // 11 minutes const int TUNNEL_EXPIRATION_THRESHOLD = 60; // 1 minute const int TUNNEL_RECREATION_THRESHOLD = 90; // 1.5 minutes const int TUNNEL_CREATION_TIMEOUT = 30; // 30 seconds - const int STANDARD_NUM_RECORDS = 5; // in VariableTunnelBuild message + const int STANDARD_NUM_RECORDS = 4; // in VariableTunnelBuild message + const int MAX_NUM_RECORDS = 8; + const int UNKNOWN_LATENCY = -1; + const int HIGH_LATENCY_PER_HOP = 250000; // in microseconds + const int MAX_TUNNEL_MSGS_BATCH_SIZE = 100; // handle messages without interrupt + const uint16_t DEFAULT_MAX_NUM_TRANSIT_TUNNELS = 5000; + const int TUNNEL_MANAGE_INTERVAL = 15; // in seconds + const int TUNNEL_POOLS_MANAGE_INTERVAL = 5; // in seconds + const int TUNNEL_MEMORY_POOL_MANAGE_INTERVAL = 120; // in seconds + + const size_t I2NP_TUNNEL_MESSAGE_SIZE = TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE + 34; // reserved for alignment and NTCP 16 + 6 + 12 + const size_t I2NP_TUNNEL_ENPOINT_MESSAGE_SIZE = 2*TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE + TUNNEL_GATEWAY_HEADER_SIZE + 28; // reserved for alignment and NTCP 16 + 6 + 6 + + const double TCSR_SMOOTHING_CONSTANT = 0.0005; // smoothing constant in exponentially weighted moving average + const double TCSR_START_VALUE = 0.1; // start value of tunnel creation success rate enum TunnelState { @@ -81,7 +67,8 @@ namespace tunnel class OutboundTunnel; class InboundTunnel; - class Tunnel: public TunnelBase + class Tunnel: public TunnelBase, + public std::enable_shared_from_this { struct TunnelHop { @@ -91,6 +78,9 @@ namespace tunnel public: + /** function for visiting a hops stored in a tunnel */ + typedef std::function)> TunnelHopVisitor; + Tunnel (std::shared_ptr config); ~Tunnel (); @@ -99,46 +89,50 @@ namespace tunnel std::shared_ptr GetTunnelConfig () const { return m_Config; } std::vector > GetPeers () const; std::vector > GetInvertedPeers () const; + bool IsShortBuildMessage () const { return m_IsShortBuildMessage; }; + i2p::data::RouterInfo::CompatibleTransports GetFarEndTransports () const { return m_FarEndTransports; }; TunnelState GetState () const { return m_State; }; void SetState (TunnelState state); - bool IsEstablished () const { return m_State == eTunnelStateEstablished; }; + bool IsEstablished () const { return m_State == eTunnelStateEstablished || m_State == eTunnelStateTestFailed; }; bool IsFailed () const { return m_State == eTunnelStateFailed; }; bool IsRecreated () const { return m_IsRecreated; }; - void SetIsRecreated () { m_IsRecreated = true; }; + void SetRecreated (bool recreated) { m_IsRecreated = recreated; }; int GetNumHops () const { return m_Hops.size (); }; virtual bool IsInbound() const = 0; + virtual bool Recreate () = 0; std::shared_ptr GetTunnelPool () const { return m_Pool; }; void SetTunnelPool (std::shared_ptr pool) { m_Pool = pool; }; bool HandleTunnelBuildResponse (uint8_t * msg, size_t len); - virtual void Print (std::stringstream&) const {}; - // implements TunnelBase - void SendTunnelDataMsg (std::shared_ptr msg); - void EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out); + void SendTunnelDataMsg (std::shared_ptr msg) override; + void EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out) override; /** @brief add latency sample */ - void AddLatencySample(const uint64_t ms) { m_Latency = (m_Latency + ms) >> 1; } + void AddLatencySample(const int us) { m_Latency = LatencyIsKnown() ? (m_Latency + us) >> 1 : us; } /** @brief get this tunnel's estimated latency */ - uint64_t GetMeanLatency() const { return m_Latency; } + int GetMeanLatency() const { return (m_Latency + 500) / 1000; } /** @brief return true if this tunnel's latency fits in range [lowerbound, upperbound] */ - bool LatencyFitsRange(uint64_t lowerbound, uint64_t upperbound) const; + bool LatencyFitsRange(int lowerbound, int upperbound) const; - bool LatencyIsKnown() const { return m_Latency > 0; } - protected: + bool LatencyIsKnown() const { return m_Latency != UNKNOWN_LATENCY; } + bool IsSlow () const { return LatencyIsKnown() && m_Latency > HIGH_LATENCY_PER_HOP*GetNumHops (); } - void PrintHops (std::stringstream& s) const; + /** visit all hops we currently store */ + void VisitTunnelHops(TunnelHopVisitor v); private: std::shared_ptr m_Config; - std::vector > m_Hops; + std::vector m_Hops; + bool m_IsShortBuildMessage; std::shared_ptr m_Pool; // pool, tunnel belongs to, or null TunnelState m_State; - bool m_IsRecreated; - uint64_t m_Latency; // in milliseconds + i2p::data::RouterInfo::CompatibleTransports m_FarEndTransports; + bool m_IsRecreated; // if tunnel is replaced by new, or new tunnel requested to replace + int m_Latency; // in microseconds }; class OutboundTunnel: public Tunnel @@ -146,18 +140,18 @@ namespace tunnel public: OutboundTunnel (std::shared_ptr config): - Tunnel (config), m_Gateway (this), m_EndpointIdentHash (config->GetLastIdentHash ()) {}; + Tunnel (config), m_Gateway (*this), m_EndpointIdentHash (config->GetLastIdentHash ()) {}; - void SendTunnelDataMsg (const uint8_t * gwHash, uint32_t gwTunnel, std::shared_ptr msg); - virtual void SendTunnelDataMsg (const std::vector& msgs); // multiple messages + void SendTunnelDataMsgTo (const uint8_t * gwHash, uint32_t gwTunnel, std::shared_ptr msg); + virtual void SendTunnelDataMsgs (const std::vector& msgs); // multiple messages const i2p::data::IdentHash& GetEndpointIdentHash () const { return m_EndpointIdentHash; }; virtual size_t GetNumSentBytes () const { return m_Gateway.GetNumSentBytes (); }; - void Print (std::stringstream& s) const; // implements TunnelBase - void HandleTunnelDataMsg (std::shared_ptr tunnelMsg); + void HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) override; - bool IsInbound() const { return false; } + bool IsInbound() const override { return false; } + bool Recreate () override; private: @@ -166,19 +160,26 @@ namespace tunnel i2p::data::IdentHash m_EndpointIdentHash; }; - class InboundTunnel: public Tunnel, public std::enable_shared_from_this + class InboundTunnel: public Tunnel { public: InboundTunnel (std::shared_ptr config): Tunnel (config), m_Endpoint (true) {}; - void HandleTunnelDataMsg (std::shared_ptr msg); + void HandleTunnelDataMsg (std::shared_ptr&& msg) override; virtual size_t GetNumReceivedBytes () const { return m_Endpoint.GetNumReceivedBytes (); }; - void Print (std::stringstream& s) const; - bool IsInbound() const { return true; } + bool IsInbound() const override { return true; } + bool Recreate () override; // override TunnelBase - void Cleanup () { m_Endpoint.Cleanup (); }; + void Cleanup () override { m_Endpoint.Cleanup (); }; + protected: + + std::shared_ptr GetSharedFromThis () + { + return std::static_pointer_cast(shared_from_this ()); + } + private: TunnelEndpoint m_Endpoint; @@ -189,9 +190,8 @@ namespace tunnel public: ZeroHopsInboundTunnel (); - void SendTunnelDataMsg (std::shared_ptr msg); - void Print (std::stringstream& s) const; - size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; }; + void SendTunnelDataMsg (std::shared_ptr msg) override; + size_t GetNumReceivedBytes () const override { return m_NumReceivedBytes; }; private: @@ -203,9 +203,8 @@ namespace tunnel public: ZeroHopsOutboundTunnel (); - void SendTunnelDataMsg (const std::vector& msgs); - void Print (std::stringstream& s) const; - size_t GetNumSentBytes () const { return m_NumSentBytes; }; + void SendTunnelDataMsgs (const std::vector& msgs) override; + size_t GetNumSentBytes () const override { return m_NumSentBytes; }; private: @@ -227,78 +226,116 @@ namespace tunnel std::shared_ptr GetNextOutboundTunnel (); std::shared_ptr GetExploratoryPool () const { return m_ExploratoryPool; }; std::shared_ptr GetTunnel (uint32_t tunnelID); + bool AddTunnel (std::shared_ptr tunnel); + void RemoveTunnel (uint32_t tunnelID); int GetTransitTunnelsExpirationTimeout (); - void AddTransitTunnel (std::shared_ptr tunnel); void AddOutboundTunnel (std::shared_ptr newTunnel); void AddInboundTunnel (std::shared_ptr newTunnel); - std::shared_ptr CreateInboundTunnel (std::shared_ptr config, std::shared_ptr outboundTunnel); - std::shared_ptr CreateOutboundTunnel (std::shared_ptr config); + std::shared_ptr CreateInboundTunnel (std::shared_ptr config, std::shared_ptr pool, std::shared_ptr outboundTunnel); + std::shared_ptr CreateOutboundTunnel (std::shared_ptr config, std::shared_ptr pool); void PostTunnelData (std::shared_ptr msg); - void PostTunnelData (const std::vector >& msgs); + void PostTunnelData (std::list >& msgs); // and cleanup msgs void AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr tunnel); void AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr tunnel); - std::shared_ptr CreateTunnelPool (int numInboundHops, - int numOuboundHops, int numInboundTunnels, int numOutboundTunnels); + std::shared_ptr CreateTunnelPool (int numInboundHops, + int numOuboundHops, int numInboundTunnels, int numOutboundTunnels, + int inboundVariance, int outboundVariance, bool isHighBandwidth); void DeleteTunnelPool (std::shared_ptr pool); void StopTunnelPool (std::shared_ptr pool); + std::shared_ptr NewI2NPTunnelMessage (bool endpoint); + + void SetMaxNumTransitTunnels (uint32_t maxNumTransitTunnels); + uint32_t GetMaxNumTransitTunnels () const { return m_MaxNumTransitTunnels; }; + int GetCongestionLevel() const { return m_MaxNumTransitTunnels ? CONGESTION_LEVEL_FULL * m_TransitTunnels.GetNumTransitTunnels () / m_MaxNumTransitTunnels : CONGESTION_LEVEL_FULL; } + private: template - std::shared_ptr CreateTunnel (std::shared_ptr config, std::shared_ptr outboundTunnel = nullptr); + std::shared_ptr CreateTunnel (std::shared_ptr config, + std::shared_ptr pool, std::shared_ptr outboundTunnel = nullptr); template std::shared_ptr GetPendingTunnel (uint32_t replyMsgID, const std::map >& pendingTunnels); void HandleTunnelGatewayMsg (std::shared_ptr tunnel, std::shared_ptr msg); - + void HandleShortTunnelBuildMsg (std::shared_ptr msg); + void HandleVariableTunnelBuildMsg (std::shared_ptr msg); + void HandleTunnelBuildReplyMsg (std::shared_ptr msg, bool isShort); + void Run (); - void ManageTunnels (); - void ManageOutboundTunnels (); - void ManageInboundTunnels (); - void ManageTransitTunnels (); - void ManagePendingTunnels (); + void ManageTunnels (uint64_t ts); + void ManageOutboundTunnels (uint64_t ts, std::vector >& toRecreate); + void ManageInboundTunnels (uint64_t ts, std::vector >& toRecreate); + void ManagePendingTunnels (uint64_t ts); template - void ManagePendingTunnels (PendingTunnels& pendingTunnels); - void ManageTunnelPools (); + void ManagePendingTunnels (PendingTunnels& pendingTunnels, uint64_t ts); + void ManageTunnelPools (uint64_t ts); - std::shared_ptr CreateZeroHopsInboundTunnel (); - std::shared_ptr CreateZeroHopsOutboundTunnel (); + std::shared_ptr CreateZeroHopsInboundTunnel (std::shared_ptr pool); + std::shared_ptr CreateZeroHopsOutboundTunnel (std::shared_ptr pool); + + // Calculating of tunnel creation success rate + void SuccesiveTunnelCreation() + { + // total TCSR + m_TotalNumSuccesiveTunnelCreations++; + // A modified version of the EWMA algorithm, where alpha is increased at the beginning to accelerate similarity + double alpha = TCSR_SMOOTHING_CONSTANT + (1 - TCSR_SMOOTHING_CONSTANT)/++m_TunnelCreationAttemptsNum; + m_TunnelCreationSuccessRate = alpha * 1 + (1 - alpha) * m_TunnelCreationSuccessRate; + + } + void FailedTunnelCreation() + { + m_TotalNumFailedTunnelCreations++; + + double alpha = TCSR_SMOOTHING_CONSTANT + (1 - TCSR_SMOOTHING_CONSTANT)/++m_TunnelCreationAttemptsNum; + m_TunnelCreationSuccessRate = alpha * 0 + (1 - alpha) * m_TunnelCreationSuccessRate; + } private: bool m_IsRunning; std::thread * m_Thread; + i2p::util::MemoryPoolMt > m_I2NPTunnelEndpointMessagesMemoryPool; + i2p::util::MemoryPoolMt > m_I2NPTunnelMessagesMemoryPool; std::map > m_PendingInboundTunnels; // by replyMsgID std::map > m_PendingOutboundTunnels; // by replyMsgID std::list > m_InboundTunnels; std::list > m_OutboundTunnels; - std::list > m_TransitTunnels; + mutable std::mutex m_TunnelsMutex; std::unordered_map > m_Tunnels; // tunnelID->tunnel known by this id - std::mutex m_PoolsMutex; + mutable std::mutex m_PoolsMutex; std::list> m_Pools; std::shared_ptr m_ExploratoryPool; i2p::util::Queue > m_Queue; - - // some stats - int m_NumSuccesiveTunnelCreations, m_NumFailedTunnelCreations; - + uint32_t m_MaxNumTransitTunnels; + // count of tunnels for total TCSR algorithm + int m_TotalNumSuccesiveTunnelCreations, m_TotalNumFailedTunnelCreations; + double m_TunnelCreationSuccessRate; + int m_TunnelCreationAttemptsNum; + std::mt19937 m_Rng; + TransitTunnels m_TransitTunnels; + public: // for HTTP only const decltype(m_OutboundTunnels)& GetOutboundTunnels () const { return m_OutboundTunnels; }; const decltype(m_InboundTunnels)& GetInboundTunnels () const { return m_InboundTunnels; }; - const decltype(m_TransitTunnels)& GetTransitTunnels () const { return m_TransitTunnels; }; + const auto& GetTransitTunnels () const { return m_TransitTunnels.GetTransitTunnels (); }; size_t CountTransitTunnels() const; size_t CountInboundTunnels() const; size_t CountOutboundTunnels() const; - int GetQueueSize () { return m_Queue.GetSize (); }; - int GetTunnelCreationSuccessRate () const // in percents + size_t GetQueueSize () const { return m_Queue.GetSize (); }; + size_t GetTBMQueueSize () const { return m_TransitTunnels.GetTunnelBuildMsgQueueSize (); }; + int GetTunnelCreationSuccessRate () const { return std::round(m_TunnelCreationSuccessRate * 100); } // in percents + double GetPreciseTunnelCreationSuccessRate () const { return m_TunnelCreationSuccessRate * 100; } // in percents + int GetTotalTunnelCreationSuccessRate () const // in percents { - int totalNum = m_NumSuccesiveTunnelCreations + m_NumFailedTunnelCreations; - return totalNum ? m_NumSuccesiveTunnelCreations*100/totalNum : 0; + int totalNum = m_TotalNumSuccesiveTunnelCreations + m_TotalNumFailedTunnelCreations; + return totalNum ? m_TotalNumSuccesiveTunnelCreations*100/totalNum : 0; } }; diff --git a/libi2pd/TunnelBase.cpp b/libi2pd/TunnelBase.cpp new file mode 100644 index 00000000..b5a4a0b3 --- /dev/null +++ b/libi2pd/TunnelBase.cpp @@ -0,0 +1,71 @@ +/* +* Copyright (c) 2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +* +*/ + +#include "Transports.h" +#include "TunnelBase.h" + +namespace i2p +{ +namespace tunnel +{ + void TunnelTransportSender::SendMessagesTo (const i2p::data::IdentHash& to, + std::list >&& msgs) + { + if (msgs.empty ()) return; + auto currentTransport = m_CurrentTransport.lock (); + if (!currentTransport) + { + // try to obtain transport from pending request or send thought transport is not complete + if (m_PendingTransport.valid ()) // pending request? + { + if (m_PendingTransport.wait_for(std::chrono::seconds(0)) == std::future_status::ready) + { + // pending request complete + currentTransport = m_PendingTransport.get (); // take transports used in pending request + if (currentTransport) + { + if (currentTransport->IsEstablished ()) + m_CurrentTransport = currentTransport; + else + currentTransport = nullptr; + } + } + else // still pending + { + // send through transports, but don't update pending transport + i2p::transport::transports.SendMessages (to, std::move (msgs)); + return; + } + } + } + if (currentTransport) // session is good + // send to session directly + currentTransport->SendI2NPMessages (msgs); + else // no session yet + // send through transports + m_PendingTransport = i2p::transport::transports.SendMessages (to, std::move (msgs)); + + } + + void TunnelTransportSender::SendMessagesTo (const i2p::data::IdentHash& to, + std::list >& msgs) + { + std::list > msgs1; + msgs.swap (msgs1); + SendMessagesTo (to, std::move (msgs1)); + } + + void TunnelTransportSender::Reset () + { + m_CurrentTransport.reset (); + if (m_PendingTransport.valid ()) + m_PendingTransport = std::future >(); + } +} +} diff --git a/libi2pd/TunnelBase.h b/libi2pd/TunnelBase.h index 53782ae3..39d6e780 100644 --- a/libi2pd/TunnelBase.h +++ b/libi2pd/TunnelBase.h @@ -1,14 +1,29 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_BASE_H__ #define TUNNEL_BASE_H__ #include #include +#include +#include #include "Timestamp.h" #include "I2NPProtocol.h" #include "Identity.h" namespace i2p { +namespace transport +{ + class TransportSession; +} + namespace tunnel { const size_t TUNNEL_DATA_MSG_SIZE = 1028; @@ -33,13 +48,13 @@ namespace tunnel { public: - TunnelBase (uint32_t tunnelID, uint32_t nextTunnelID, i2p::data::IdentHash nextIdent): + TunnelBase (uint32_t tunnelID, uint32_t nextTunnelID, const i2p::data::IdentHash& nextIdent): m_TunnelID (tunnelID), m_NextTunnelID (nextTunnelID), m_NextIdent (nextIdent), m_CreationTime (i2p::util::GetSecondsSinceEpoch ()) {}; virtual ~TunnelBase () {}; virtual void Cleanup () {}; - virtual void HandleTunnelDataMsg (std::shared_ptr tunnelMsg) = 0; + virtual void HandleTunnelDataMsg (std::shared_ptr&& tunnelMsg) = 0; virtual void SendTunnelDataMsg (std::shared_ptr msg) = 0; virtual void FlushTunnelDataMsgs () {}; virtual void EncryptTunnelMsg (std::shared_ptr in, std::shared_ptr out) = 0; @@ -68,6 +83,25 @@ namespace tunnel return t1 < t2; } }; + + class TunnelTransportSender final + { + public: + + TunnelTransportSender () = default; + ~TunnelTransportSender () = default; + + void SendMessagesTo (const i2p::data::IdentHash& to, std::list >&& msgs); + void SendMessagesTo (const i2p::data::IdentHash& to, std::list >& msgs); // send and clear + + std::shared_ptr GetCurrentTransport () const { return m_CurrentTransport.lock (); } + void Reset (); + + private: + + std::weak_ptr m_CurrentTransport; + std::future > m_PendingTransport; + }; } } diff --git a/libi2pd/TunnelConfig.cpp b/libi2pd/TunnelConfig.cpp new file mode 100644 index 00000000..fe0e8573 --- /dev/null +++ b/libi2pd/TunnelConfig.cpp @@ -0,0 +1,249 @@ +/* +* Copyright (c) 2013-2021, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +* +*/ + +#include +#include +#include +#include "Log.h" +#include "Transports.h" +#include "Timestamp.h" +#include "I2PEndian.h" +#include "I2NPProtocol.h" +#include "TunnelConfig.h" + +namespace i2p +{ +namespace tunnel +{ + TunnelHopConfig::TunnelHopConfig (std::shared_ptr r) + { + RAND_bytes ((uint8_t *)&tunnelID, 4); + if (!tunnelID) tunnelID = 1; // tunnelID can't be zero + isGateway = true; + isEndpoint = true; + ident = r; + //nextRouter = nullptr; + nextTunnelID = 0; + + next = nullptr; + prev = nullptr; + } + + void TunnelHopConfig::SetNextIdent (const i2p::data::IdentHash& ident) + { + nextIdent = ident; + isEndpoint = false; + RAND_bytes ((uint8_t *)&nextTunnelID, 4); + if (!nextTunnelID) nextTunnelID = 1; // tunnelID can't be zero + } + + void TunnelHopConfig::SetReplyHop (uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent) + { + nextIdent = replyIdent; + nextTunnelID = replyTunnelID; + isEndpoint = true; + } + + void TunnelHopConfig::SetNext (TunnelHopConfig * n) + { + next = n; + if (next) + { + next->prev = this; + next->isGateway = false; + isEndpoint = false; + nextIdent = next->ident->GetIdentHash (); + nextTunnelID = next->tunnelID; + } + } + + void TunnelHopConfig::SetPrev (TunnelHopConfig * p) + { + prev = p; + if (prev) + { + prev->next = this; + prev->isEndpoint = false; + isGateway = false; + } + } + + void TunnelHopConfig::DecryptRecord (uint8_t * records, int index) const + { + uint8_t * record = records + index*TUNNEL_BUILD_RECORD_SIZE; + i2p::crypto::CBCDecryption decryption; + decryption.SetKey (replyKey); + decryption.Decrypt(record, TUNNEL_BUILD_RECORD_SIZE, replyIV, record); + } + + void ECIESTunnelHopConfig::EncryptECIES (const uint8_t * plainText, size_t len, uint8_t * encrypted) + { + if (!ident) return; + i2p::crypto::InitNoiseNState (*this, ident->GetEncryptionPublicKey ()); + auto ephemeralKeys = i2p::transport::transports.GetNextX25519KeysPair (); + memcpy (encrypted, ephemeralKeys->GetPublicKey (), 32); + MixHash (encrypted, 32); // h = SHA256(h || sepk) + encrypted += 32; + uint8_t sharedSecret[32]; + ephemeralKeys->Agree (ident->GetEncryptionPublicKey (), sharedSecret); // x25519(sesk, hepk) + MixKey (sharedSecret); + uint8_t nonce[12]; + memset (nonce, 0, 12); + if (!i2p::crypto::AEADChaCha20Poly1305 (plainText, len, m_H, 32, m_CK + 32, nonce, encrypted, len + 16, true)) // encrypt + { + LogPrint (eLogWarning, "Tunnel: Plaintext AEAD encryption failed"); + return; + } + MixHash (encrypted, len + 16); // h = SHA256(h || ciphertext) + } + + bool ECIESTunnelHopConfig::DecryptECIES (const uint8_t * key, const uint8_t * nonce, const uint8_t * encrypted, size_t len, uint8_t * clearText) const + { + return i2p::crypto::AEADChaCha20Poly1305 (encrypted, len - 16, m_H, 32, key, nonce, clearText, len - 16, false); // decrypt + } + + void LongECIESTunnelHopConfig::CreateBuildRequestRecord (uint8_t * records, uint32_t replyMsgID) + { + // generate keys + RAND_bytes (layerKey, 32); + RAND_bytes (ivKey, 32); + RAND_bytes (replyKey, 32); + RAND_bytes (replyIV, 16); + // fill clear text + uint8_t flag = 0; + if (isGateway) flag |= TUNNEL_BUILD_RECORD_GATEWAY_FLAG; + if (isEndpoint) flag |= TUNNEL_BUILD_RECORD_ENDPOINT_FLAG; + uint8_t clearText[ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE]; + htobe32buf (clearText + ECIES_BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET, tunnelID); + htobe32buf (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET, nextTunnelID); + memcpy (clearText + ECIES_BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, nextIdent, 32); + memcpy (clearText + ECIES_BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET, layerKey, 32); + memcpy (clearText + ECIES_BUILD_REQUEST_RECORD_IV_KEY_OFFSET, ivKey, 32); + memcpy (clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET, replyKey, 32); + memcpy (clearText + ECIES_BUILD_REQUEST_RECORD_REPLY_IV_OFFSET, replyIV, 16); + clearText[ECIES_BUILD_REQUEST_RECORD_FLAG_OFFSET] = flag; + memset (clearText + ECIES_BUILD_REQUEST_RECORD_MORE_FLAGS_OFFSET, 0, 3); // set to 0 for compatibility + htobe32buf (clearText + ECIES_BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET, i2p::util::GetMinutesSinceEpoch ()); + htobe32buf (clearText + ECIES_BUILD_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET, 600); // +10 minutes + htobe32buf (clearText + ECIES_BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET, replyMsgID); + memset (clearText + ECIES_BUILD_REQUEST_RECORD_PADDING_OFFSET, 0, ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE - ECIES_BUILD_REQUEST_RECORD_PADDING_OFFSET); + // encrypt + uint8_t * record = records + recordIndex*TUNNEL_BUILD_RECORD_SIZE; + EncryptECIES (clearText, ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE, record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET); + memcpy (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)ident->GetIdentHash (), 16); + } + + bool LongECIESTunnelHopConfig::DecryptBuildResponseRecord (uint8_t * records) const + { + uint8_t * record = records + recordIndex*TUNNEL_BUILD_RECORD_SIZE; + uint8_t nonce[12]; + memset (nonce, 0, 12); + if (!DecryptECIES (m_CK, nonce, record, TUNNEL_BUILD_RECORD_SIZE, record)) + { + LogPrint (eLogWarning, "Tunnel: Response AEAD decryption failed"); + return false; + } + return true; + } + + void ShortECIESTunnelHopConfig::CreateBuildRequestRecord (uint8_t * records, uint32_t replyMsgID) + { + // fill clear text + uint8_t flag = 0; + if (isGateway) flag |= TUNNEL_BUILD_RECORD_GATEWAY_FLAG; + if (isEndpoint) flag |= TUNNEL_BUILD_RECORD_ENDPOINT_FLAG; + uint8_t clearText[SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE ]; + htobe32buf (clearText + SHORT_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET, tunnelID); + htobe32buf (clearText + SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET, nextTunnelID); + memcpy (clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, nextIdent, 32); + clearText[SHORT_REQUEST_RECORD_FLAG_OFFSET] = flag; + memset (clearText + SHORT_REQUEST_RECORD_MORE_FLAGS_OFFSET, 0, 2); + clearText[SHORT_REQUEST_RECORD_LAYER_ENCRYPTION_TYPE] = 0; // AES + htobe32buf (clearText + SHORT_REQUEST_RECORD_REQUEST_TIME_OFFSET, i2p::util::GetMinutesSinceEpoch ()); + htobe32buf (clearText + SHORT_REQUEST_RECORD_REQUEST_EXPIRATION_OFFSET , 600); // +10 minutes + htobe32buf (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET, replyMsgID); + memset (clearText + SHORT_REQUEST_RECORD_PADDING_OFFSET, 0, SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE - SHORT_REQUEST_RECORD_PADDING_OFFSET); + // encrypt + uint8_t * record = records + recordIndex*SHORT_TUNNEL_BUILD_RECORD_SIZE; + EncryptECIES (clearText, SHORT_REQUEST_RECORD_CLEAR_TEXT_SIZE, record + SHORT_REQUEST_RECORD_ENCRYPTED_OFFSET); + // derive keys + i2p::crypto::HKDF (m_CK, nullptr, 0, "SMTunnelReplyKey", m_CK); + memcpy (replyKey, m_CK + 32, 32); + i2p::crypto::HKDF (m_CK, nullptr, 0, "SMTunnelLayerKey", m_CK); + memcpy (layerKey, m_CK + 32, 32); + if (isEndpoint) + { + i2p::crypto::HKDF (m_CK, nullptr, 0, "TunnelLayerIVKey", m_CK); + memcpy (ivKey, m_CK + 32, 32); + i2p::crypto::HKDF (m_CK, nullptr, 0, "RGarlicKeyAndTag", m_CK); // OTBRM garlic key m_CK + 32, tag first 8 bytes of m_CK + } + else + memcpy (ivKey, m_CK, 32); // last HKDF + memcpy (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)ident->GetIdentHash (), 16); + } + + bool ShortECIESTunnelHopConfig::DecryptBuildResponseRecord (uint8_t * records) const + { + uint8_t * record = records + recordIndex*SHORT_TUNNEL_BUILD_RECORD_SIZE; + uint8_t nonce[12]; + memset (nonce, 0, 12); + nonce[4] = recordIndex; // nonce is record index + if (!DecryptECIES (replyKey, nonce, record, SHORT_TUNNEL_BUILD_RECORD_SIZE, record)) + { + LogPrint (eLogWarning, "Tunnel: Response AEAD decryption failed"); + return false; + } + return true; + } + + void ShortECIESTunnelHopConfig::DecryptRecord (uint8_t * records, int index) const + { + uint8_t * record = records + index*SHORT_TUNNEL_BUILD_RECORD_SIZE; + uint8_t nonce[12]; + memset (nonce, 0, 12); + nonce[4] = index; // nonce is index + i2p::crypto::ChaCha20 (record, SHORT_TUNNEL_BUILD_RECORD_SIZE, replyKey, nonce, record); + } + + uint64_t ShortECIESTunnelHopConfig::GetGarlicKey (uint8_t * key) const + { + uint64_t tag; + memcpy (&tag, m_CK, 8); + memcpy (key, m_CK + 32, 32); + return tag; + } + + void TunnelConfig::CreatePeers (const std::vector >& peers) + { + TunnelHopConfig * prev = nullptr; + for (const auto& it: peers) + { + TunnelHopConfig * hop = nullptr; + if (m_IsShort) + hop = new ShortECIESTunnelHopConfig (it); + else + { + if (it->GetCryptoKeyType () == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + hop = new LongECIESTunnelHopConfig (it); + else + LogPrint (eLogError, "Tunnel: ElGamal router is not supported"); + } + if (hop) + { + if (prev) + prev->SetNext (hop); + else + m_FirstHop = hop; + prev = hop; + } + } + m_LastHop = prev; + } +} +} \ No newline at end of file diff --git a/libi2pd/TunnelConfig.h b/libi2pd/TunnelConfig.h index 48e66f2e..718a6fdb 100644 --- a/libi2pd/TunnelConfig.h +++ b/libi2pd/TunnelConfig.h @@ -1,13 +1,18 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_CONFIG_H__ #define TUNNEL_CONFIG_H__ -#include -#include #include -#include #include "Identity.h" #include "RouterContext.h" -#include "Timestamp.h" +#include "Crypto.h" namespace i2p { @@ -27,107 +32,74 @@ namespace tunnel TunnelHopConfig * next, * prev; int recordIndex; // record # in tunnel build message - TunnelHopConfig (std::shared_ptr r) - { - RAND_bytes (layerKey, 32); - RAND_bytes (ivKey, 32); - RAND_bytes (replyKey, 32); - RAND_bytes (replyIV, 16); - RAND_bytes ((uint8_t *)&tunnelID, 4); - if (!tunnelID) tunnelID = 1; // tunnelID can't be zero - isGateway = true; - isEndpoint = true; - ident = r; - //nextRouter = nullptr; - nextTunnelID = 0; + TunnelHopConfig (std::shared_ptr r); + virtual ~TunnelHopConfig () {}; - next = nullptr; - prev = nullptr; - } + void SetNextIdent (const i2p::data::IdentHash& ident); + void SetReplyHop (uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent); + void SetNext (TunnelHopConfig * n); + void SetPrev (TunnelHopConfig * p); - void SetNextIdent (const i2p::data::IdentHash& ident) - { - nextIdent = ident; - isEndpoint = false; - RAND_bytes ((uint8_t *)&nextTunnelID, 4); - if (!nextTunnelID) nextTunnelID = 1; // tunnelID can't be zero - } + virtual uint8_t GetRetCode (const uint8_t * records) const = 0; + virtual void CreateBuildRequestRecord (uint8_t * records, uint32_t replyMsgID) = 0; + virtual bool DecryptBuildResponseRecord (uint8_t * records) const = 0; + virtual void DecryptRecord (uint8_t * records, int index) const; // AES + virtual uint64_t GetGarlicKey (uint8_t * key) const { return 0; }; // return tag + }; - void SetReplyHop (uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent) - { - nextIdent = replyIdent; - nextTunnelID = replyTunnelID; - isEndpoint = true; - } + struct ECIESTunnelHopConfig: public TunnelHopConfig, public i2p::crypto::NoiseSymmetricState + { + ECIESTunnelHopConfig (std::shared_ptr r): + TunnelHopConfig (r) {}; + void EncryptECIES (const uint8_t * clearText, size_t len, uint8_t * encrypted); + bool DecryptECIES (const uint8_t * key, const uint8_t * nonce, const uint8_t * encrypted, size_t len, uint8_t * clearText) const; + }; - void SetNext (TunnelHopConfig * n) - { - next = n; - if (next) - { - next->prev = this; - next->isGateway = false; - isEndpoint = false; - nextIdent = next->ident->GetIdentHash (); - nextTunnelID = next->tunnelID; - } - } + struct LongECIESTunnelHopConfig: public ECIESTunnelHopConfig + { + LongECIESTunnelHopConfig (std::shared_ptr r): + ECIESTunnelHopConfig (r) {}; + uint8_t GetRetCode (const uint8_t * records) const override + { return (records + recordIndex*TUNNEL_BUILD_RECORD_SIZE)[ECIES_BUILD_RESPONSE_RECORD_RET_OFFSET]; }; + void CreateBuildRequestRecord (uint8_t * records, uint32_t replyMsgID) override; + bool DecryptBuildResponseRecord (uint8_t * records) const override; + }; - void SetPrev (TunnelHopConfig * p) - { - prev = p; - if (prev) - { - prev->next = this; - prev->isEndpoint = false; - isGateway = false; - } - } - - void CreateBuildRequestRecord (uint8_t * record, uint32_t replyMsgID, BN_CTX * ctx) const - { - uint8_t clearText[BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE]; - htobe32buf (clearText + BUILD_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET, tunnelID); - memcpy (clearText + BUILD_REQUEST_RECORD_OUR_IDENT_OFFSET, ident->GetIdentHash (), 32); - htobe32buf (clearText + BUILD_REQUEST_RECORD_NEXT_TUNNEL_OFFSET, nextTunnelID); - memcpy (clearText + BUILD_REQUEST_RECORD_NEXT_IDENT_OFFSET, nextIdent, 32); - memcpy (clearText + BUILD_REQUEST_RECORD_LAYER_KEY_OFFSET, layerKey, 32); - memcpy (clearText + BUILD_REQUEST_RECORD_IV_KEY_OFFSET, ivKey, 32); - memcpy (clearText + BUILD_REQUEST_RECORD_REPLY_KEY_OFFSET, replyKey, 32); - memcpy (clearText + BUILD_REQUEST_RECORD_REPLY_IV_OFFSET, replyIV, 16); - uint8_t flag = 0; - if (isGateway) flag |= 0x80; - if (isEndpoint) flag |= 0x40; - clearText[BUILD_REQUEST_RECORD_FLAG_OFFSET] = flag; - htobe32buf (clearText + BUILD_REQUEST_RECORD_REQUEST_TIME_OFFSET, i2p::util::GetHoursSinceEpoch ()); - htobe32buf (clearText + BUILD_REQUEST_RECORD_SEND_MSG_ID_OFFSET, replyMsgID); - RAND_bytes (clearText + BUILD_REQUEST_RECORD_PADDING_OFFSET, BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE - BUILD_REQUEST_RECORD_PADDING_OFFSET); - auto encryptor = ident->CreateEncryptor (nullptr); - if (encryptor) - encryptor->Encrypt (clearText, record + BUILD_REQUEST_RECORD_ENCRYPTED_OFFSET, ctx, false); - memcpy (record + BUILD_REQUEST_RECORD_TO_PEER_OFFSET, (const uint8_t *)ident->GetIdentHash (), 16); - } + struct ShortECIESTunnelHopConfig: public ECIESTunnelHopConfig + { + ShortECIESTunnelHopConfig (std::shared_ptr r): + ECIESTunnelHopConfig (r) {}; + uint8_t GetRetCode (const uint8_t * records) const override + { return (records + recordIndex*SHORT_TUNNEL_BUILD_RECORD_SIZE)[SHORT_RESPONSE_RECORD_RET_OFFSET]; }; + void CreateBuildRequestRecord (uint8_t * records, uint32_t replyMsgID) override; + bool DecryptBuildResponseRecord (uint8_t * records) const override; + void DecryptRecord (uint8_t * records, int index) const override; // Chacha20 + uint64_t GetGarlicKey (uint8_t * key) const override; }; class TunnelConfig { public: - TunnelConfig (std::vector > peers) // inbound + TunnelConfig (const std::vector >& peers, + bool isShort, i2p::data::RouterInfo::CompatibleTransports farEndTransports = i2p::data::RouterInfo::eAllTransports): // inbound + m_IsShort (isShort), m_FarEndTransports (farEndTransports) { CreatePeers (peers); m_LastHop->SetNextIdent (i2p::context.GetIdentHash ()); } - TunnelConfig (std::vector > peers, - uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent) // outbound + TunnelConfig (const std::vector >& peers, + uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent, bool isShort, + i2p::data::RouterInfo::CompatibleTransports farEndTransports = i2p::data::RouterInfo::eAllTransports): // outbound + m_IsShort (isShort), m_FarEndTransports (farEndTransports) { CreatePeers (peers); m_FirstHop->isGateway = false; m_LastHop->SetReplyHop (replyTunnelID, replyIdent); } - ~TunnelConfig () + virtual ~TunnelConfig () { TunnelHopConfig * hop = m_FirstHop; @@ -139,6 +111,13 @@ namespace tunnel } } + bool IsShort () const { return m_IsShort; } + + i2p::data::RouterInfo::CompatibleTransports GetFarEndTransports () const + { + return m_FarEndTransports; + } + TunnelHopConfig * GetFirstHop () const { return m_FirstHop; @@ -202,34 +181,25 @@ namespace tunnel return peers; } + size_t GetRecordSize () const { return m_IsShort ? SHORT_TUNNEL_BUILD_RECORD_SIZE : TUNNEL_BUILD_RECORD_SIZE; }; + protected: // this constructor can't be called from outside - TunnelConfig (): m_FirstHop (nullptr), m_LastHop (nullptr) + TunnelConfig (): m_FirstHop (nullptr), m_LastHop (nullptr), m_IsShort (false), + m_FarEndTransports (i2p::data::RouterInfo::eAllTransports) { } private: - template - void CreatePeers (const Peers& peers) - { - TunnelHopConfig * prev = nullptr; - for (const auto& it: peers) - { - auto hop = new TunnelHopConfig (it); - if (prev) - prev->SetNext (hop); - else - m_FirstHop = hop; - prev = hop; - } - m_LastHop = prev; - } + void CreatePeers (const std::vector >& peers); private: TunnelHopConfig * m_FirstHop, * m_LastHop; + bool m_IsShort; + i2p::data::RouterInfo::CompatibleTransports m_FarEndTransports; }; class ZeroHopsTunnelConfig: public TunnelConfig diff --git a/libi2pd/TunnelEndpoint.cpp b/libi2pd/TunnelEndpoint.cpp index 324d5315..66b7effa 100644 --- a/libi2pd/TunnelEndpoint.cpp +++ b/libi2pd/TunnelEndpoint.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "I2PEndian.h" #include #include "Crypto.h" @@ -13,16 +21,13 @@ namespace i2p { namespace tunnel { - TunnelEndpoint::~TunnelEndpoint () - { - } - + void TunnelEndpoint::HandleDecryptedTunnelDataMsg (std::shared_ptr msg) { m_NumReceivedBytes += TUNNEL_DATA_MSG_SIZE; uint8_t * decrypted = msg->GetPayload () + 20; // 4 + 16 - uint8_t * zero = (uint8_t *)memchr (decrypted + 4, 0, TUNNEL_DATA_ENCRYPTED_SIZE - 4); // witout 4-byte checksum + uint8_t * zero = (uint8_t *)memchr (decrypted + 4, 0, TUNNEL_DATA_ENCRYPTED_SIZE - 4); // without 4-byte checksum if (zero) { uint8_t * fragment = zero + 1; @@ -32,7 +37,7 @@ namespace tunnel SHA256(fragment, TUNNEL_DATA_MSG_SIZE -(fragment - msg->GetPayload ()) + 16, hash); // payload + iv if (memcmp (hash, decrypted, 4)) { - LogPrint (eLogError, "TunnelMessage: checksum verification failed"); + LogPrint (eLogError, "TunnelMessage: Checksum verification failed"); return; } // process fragments @@ -44,28 +49,28 @@ namespace tunnel bool isFollowOnFragment = flag & 0x80, isLastFragment = true; uint32_t msgID = 0; int fragmentNum = 0; - TunnelMessageBlockEx m; if (!isFollowOnFragment) { // first fragment + if (m_CurrentMsgID) + AddIncompleteCurrentMessage (); // we have got a new message while previous is not complete - m.deliveryType = (TunnelDeliveryType)((flag >> 5) & 0x03); - switch (m.deliveryType) + m_CurrentMessage.deliveryType = (TunnelDeliveryType)((flag >> 5) & 0x03); + switch (m_CurrentMessage.deliveryType) { case eDeliveryTypeLocal: // 0 break; case eDeliveryTypeTunnel: // 1 - m.tunnelID = bufbe32toh (fragment); + m_CurrentMessage.tunnelID = bufbe32toh (fragment); fragment += 4; // tunnelID - m.hash = i2p::data::IdentHash (fragment); + m_CurrentMessage.hash = i2p::data::IdentHash (fragment); fragment += 32; // hash break; case eDeliveryTypeRouter: // 2 - m.hash = i2p::data::IdentHash (fragment); + m_CurrentMessage.hash = i2p::data::IdentHash (fragment); fragment += 32; // to hash break; - default: - ; + default: ; } bool isFragmented = flag & 0x08; @@ -74,6 +79,7 @@ namespace tunnel // Message ID msgID = bufbe32toh (fragment); fragment += 4; + m_CurrentMsgID = msgID; isLastFragment = false; } } @@ -89,78 +95,78 @@ namespace tunnel uint16_t size = bufbe16toh (fragment); fragment += 2; - msg->offset = fragment - msg->buf; - msg->len = msg->offset + size; - if (msg->len > msg->maxLen) + // handle fragment + if (isFollowOnFragment) { - LogPrint (eLogError, "TunnelMessage: fragment is too long ", (int)size); - return; - } - if (fragment + size < decrypted + TUNNEL_DATA_ENCRYPTED_SIZE) - { - // this is not last message. we have to copy it - m.data = NewI2NPTunnelMessage (); - m.data->offset += TUNNEL_GATEWAY_HEADER_SIZE; // reserve room for TunnelGateway header - m.data->len += TUNNEL_GATEWAY_HEADER_SIZE; - *(m.data) = *msg; - } - else - m.data = msg; - - if (!isFollowOnFragment && isLastFragment) - HandleNextMessage (m); - else - { - if (msgID) // msgID is presented, assume message is fragmented + // existing message + if (m_CurrentMsgID && m_CurrentMsgID == msgID && m_CurrentMessage.nextFragmentNum == fragmentNum) + HandleCurrenMessageFollowOnFragment (fragment, size, isLastFragment); // previous + else { - if (!isFollowOnFragment) // create new incomlete message - { - m.nextFragmentNum = 1; - m.receiveTime = i2p::util::GetMillisecondsSinceEpoch (); - auto ret = m_IncompleteMessages.insert (std::pair(msgID, m)); - if (ret.second) - HandleOutOfSequenceFragments (msgID, ret.first->second); - else - LogPrint (eLogError, "TunnelMessage: Incomplete message ", msgID, " already exists"); - } - else - { - m.nextFragmentNum = fragmentNum; - HandleFollowOnFragment (msgID, isLastFragment, m); - } + HandleFollowOnFragment (msgID, isLastFragment, fragmentNum, fragment, size); // another + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + } + } + else + { + // new message + msg->offset = fragment - msg->buf; + msg->len = msg->offset + size; + // check message size + if (msg->len > msg->maxLen) + { + LogPrint (eLogError, "TunnelMessage: Fragment is too long ", (int)size); + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + return; + } + // create new or assign I2NP message + if (fragment + size < decrypted + TUNNEL_DATA_ENCRYPTED_SIZE) + { + // this is not last message. we have to copy it + m_CurrentMessage.data = NewI2NPTunnelMessage (true); + *(m_CurrentMessage.data) = *msg; } else + m_CurrentMessage.data = msg; + + if (isLastFragment) + { + // single message + HandleNextMessage (m_CurrentMessage); + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + } + else if (msgID) + { + // first fragment of a new message + m_CurrentMessage.nextFragmentNum = 1; + m_CurrentMessage.receiveTime = i2p::util::GetMillisecondsSinceEpoch (); + HandleOutOfSequenceFragments (msgID, m_CurrentMessage); + } + else + { LogPrint (eLogError, "TunnelMessage: Message is fragmented, but msgID is not presented"); + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + } } fragment += size; } } else - LogPrint (eLogError, "TunnelMessage: zero not found"); + LogPrint (eLogError, "TunnelMessage: Zero not found"); } - void TunnelEndpoint::HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, const TunnelMessageBlockEx& m) + void TunnelEndpoint::HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, + uint8_t fragmentNum, const uint8_t * fragment, size_t size) { - auto fragment = m.data->GetBuffer (); - auto size = m.data->GetLength (); auto it = m_IncompleteMessages.find (msgID); if (it != m_IncompleteMessages.end()) { auto& msg = it->second; - if (m.nextFragmentNum == msg.nextFragmentNum) + if (fragmentNum == msg.nextFragmentNum) { - if (msg.data->len + size < I2NP_MAX_MESSAGE_SIZE) // check if message is not too long + if (ConcatFollowOnFragment (msg, fragment, size)) { - if (msg.data->len + size > msg.data->maxLen) - { - // LogPrint (eLogWarning, "TunnelMessage: I2NP message size ", msg.data->maxLen, " is not enough"); - auto newMsg = NewI2NPMessage (); - *newMsg = *(msg.data); - msg.data = newMsg; - } - if (msg.data->Concat (fragment, size) < size) // concatenate fragment - LogPrint (eLogError, "TunnelMessage: I2NP buffer overflow ", msg.data->maxLen); if (isLastFragment) { // message complete @@ -175,27 +181,86 @@ namespace tunnel } else { - LogPrint (eLogError, "TunnelMessage: Fragment ", m.nextFragmentNum, " of message ", msgID, "exceeds max I2NP message size, message dropped"); + LogPrint (eLogError, "TunnelMessage: Fragment ", fragmentNum, " of message ", msgID, "exceeds max I2NP message size, message dropped"); m_IncompleteMessages.erase (it); } } else { - LogPrint (eLogWarning, "TunnelMessage: Unexpected fragment ", (int)m.nextFragmentNum, " instead ", (int)msg.nextFragmentNum, " of message ", msgID, ", saved"); - AddOutOfSequenceFragment (msgID, m.nextFragmentNum, isLastFragment, m.data); + LogPrint (eLogWarning, "TunnelMessage: Unexpected fragment ", (int)fragmentNum, " instead ", (int)msg.nextFragmentNum, " of message ", msgID, ", saved"); + AddOutOfSequenceFragment (msgID, fragmentNum, isLastFragment, fragment, size); } } else { - LogPrint (eLogWarning, "TunnelMessage: First fragment of message ", msgID, " not found, saved"); - AddOutOfSequenceFragment (msgID, m.nextFragmentNum, isLastFragment, m.data); + LogPrint (eLogDebug, "TunnelMessage: First fragment of message ", msgID, " not found, saved"); + AddOutOfSequenceFragment (msgID, fragmentNum, isLastFragment, fragment, size); } } - void TunnelEndpoint::AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, bool isLastFragment, std::shared_ptr data) + bool TunnelEndpoint::ConcatFollowOnFragment (TunnelMessageBlockEx& msg, const uint8_t * fragment, size_t size) const { - if (!m_OutOfSequenceFragments.insert ({{msgID, fragmentNum}, {isLastFragment, data, i2p::util::GetMillisecondsSinceEpoch () }}).second) - LogPrint (eLogInfo, "TunnelMessage: duplicate out-of-sequence fragment ", fragmentNum, " of message ", msgID); + if (msg.data->len + size < I2NP_MAX_MESSAGE_SIZE) // check if message is not too long + { + if (msg.data->len + size > msg.data->maxLen) + { + // LogPrint (eLogWarning, "TunnelMessage: I2NP message size ", msg.data->maxLen, " is not enough"); + auto newMsg = NewI2NPMessage (msg.data->len + size); + *newMsg = *(msg.data); + msg.data = newMsg; + } + if (msg.data->Concat (fragment, size) < size) // concatenate fragment + { + LogPrint (eLogError, "TunnelMessage: I2NP buffer overflow ", msg.data->maxLen); + return false; + } + } + else + return false; + return true; + } + + void TunnelEndpoint::HandleCurrenMessageFollowOnFragment (const uint8_t * fragment, size_t size, bool isLastFragment) + { + if (ConcatFollowOnFragment (m_CurrentMessage, fragment, size)) + { + if (isLastFragment) + { + // message complete + HandleNextMessage (m_CurrentMessage); + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + } + else + { + m_CurrentMessage.nextFragmentNum++; + HandleOutOfSequenceFragments (m_CurrentMsgID, m_CurrentMessage); + } + } + else + { + LogPrint (eLogError, "TunnelMessage: Fragment ", m_CurrentMessage.nextFragmentNum, " of message ", m_CurrentMsgID, " exceeds max I2NP message size, message dropped"); + m_CurrentMsgID = 0; m_CurrentMessage.data = nullptr; + } + } + + void TunnelEndpoint::AddIncompleteCurrentMessage () + { + if (m_CurrentMsgID) + { + auto ret = m_IncompleteMessages.emplace (m_CurrentMsgID, m_CurrentMessage); + if (!ret.second) + LogPrint (eLogError, "TunnelMessage: Incomplete message ", m_CurrentMsgID, " already exists"); + m_CurrentMessage.data = nullptr; + m_CurrentMsgID = 0; + } + } + + void TunnelEndpoint::AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, + bool isLastFragment, const uint8_t * fragment, size_t size) + { + if (!m_OutOfSequenceFragments.try_emplace ((uint64_t)msgID << 32 | fragmentNum, + isLastFragment, i2p::util::GetMillisecondsSinceEpoch (), fragment, size).second) + LogPrint (eLogInfo, "TunnelMessage: Duplicate out-of-sequence fragment ", fragmentNum, " of message ", msgID); } void TunnelEndpoint::HandleOutOfSequenceFragments (uint32_t msgID, TunnelMessageBlockEx& msg) @@ -205,7 +270,14 @@ namespace tunnel if (!msg.nextFragmentNum) // message complete { HandleNextMessage (msg); - m_IncompleteMessages.erase (msgID); + if (&msg == &m_CurrentMessage) + { + m_CurrentMsgID = 0; + m_CurrentMessage.data = nullptr; + } + else + m_IncompleteMessages.erase (msgID); + LogPrint (eLogDebug, "TunnelMessage: All fragments of message ", msgID, " found"); break; } } @@ -213,19 +285,19 @@ namespace tunnel bool TunnelEndpoint::ConcatNextOutOfSequenceFragment (uint32_t msgID, TunnelMessageBlockEx& msg) { - auto it = m_OutOfSequenceFragments.find ({msgID, msg.nextFragmentNum}); + auto it = m_OutOfSequenceFragments.find ((uint64_t)msgID << 32 | msg.nextFragmentNum); if (it != m_OutOfSequenceFragments.end ()) { LogPrint (eLogDebug, "TunnelMessage: Out-of-sequence fragment ", (int)msg.nextFragmentNum, " of message ", msgID, " found"); - size_t size = it->second.data->GetLength (); + size_t size = it->second.data.size (); if (msg.data->len + size > msg.data->maxLen) { LogPrint (eLogWarning, "TunnelMessage: Tunnel endpoint I2NP message size ", msg.data->maxLen, " is not enough"); - auto newMsg = NewI2NPMessage (); + auto newMsg = NewI2NPMessage (msg.data->len + size); *newMsg = *(msg.data); msg.data = newMsg; } - if (msg.data->Concat (it->second.data->GetBuffer (), size) < size) // concatenate out-of-sync fragment + if (msg.data->Concat (it->second.data.data (), size) < size) // concatenate out-of-sync fragment LogPrint (eLogError, "TunnelMessage: Tunnel endpoint I2NP buffer overflow ", msg.data->maxLen); if (it->second.isLastFragment) // message complete @@ -242,16 +314,12 @@ namespace tunnel { if (!m_IsInbound && msg.data->IsExpired ()) { - LogPrint (eLogInfo, "TunnelMessage: message expired"); + LogPrint (eLogInfo, "TunnelMessage: Message expired"); return; } uint8_t typeID = msg.data->GetTypeID (); - LogPrint (eLogDebug, "TunnelMessage: handle fragment of ", msg.data->GetLength (), " bytes, msg type ", (int)typeID); - // catch RI or reply with new list of routers - if ((IsRouterInfoMsg (msg.data) || typeID == eI2NPDatabaseSearchReply) && - !m_IsInbound && msg.deliveryType != eDeliveryTypeLocal) - i2p::data::netdb.PostI2NPMsg (CopyI2NPMessage (msg.data)); - + LogPrint (eLogDebug, "TunnelMessage: Handle fragment of ", msg.data->GetLength (), " bytes, msg type ", (int)typeID); + switch (msg.deliveryType) { case eDeliveryTypeLocal: @@ -259,13 +327,13 @@ namespace tunnel break; case eDeliveryTypeTunnel: if (!m_IsInbound) // outbound transit tunnel - i2p::transport::transports.SendMessage (msg.hash, i2p::CreateTunnelGatewayMsg (msg.tunnelID, msg.data)); + SendMessageTo (msg.hash, i2p::CreateTunnelGatewayMsg (msg.tunnelID, msg.data)); else LogPrint (eLogError, "TunnelMessage: Delivery type 'tunnel' arrived from an inbound tunnel, dropped"); break; case eDeliveryTypeRouter: if (!m_IsInbound) // outbound transit tunnel - i2p::transport::transports.SendMessage (msg.hash, msg.data); + i2p::transport::transports.SendMessage (msg.hash, msg.data); // send right away, because most likely it's single message else // we shouldn't send this message. possible leakage LogPrint (eLogError, "TunnelMessage: Delivery type 'router' arrived from an inbound tunnel, dropped"); break; @@ -294,5 +362,35 @@ namespace tunnel ++it; } } + + void TunnelEndpoint::SendMessageTo (const i2p::data::IdentHash& to, std::shared_ptr msg) + { + if (msg) + { + if (!m_Sender && m_I2NPMsgs.empty ()) // first message + m_CurrentHash = to; + else if (m_CurrentHash != to) // new target router + { + FlushI2NPMsgs (); // flush message to previous + if (m_Sender) m_Sender->Reset (); // reset sender + m_CurrentHash = to; // set new target router + } // otherwise add msg to the list for current target router + m_I2NPMsgs.push_back (msg); + } + } + + void TunnelEndpoint::FlushI2NPMsgs () + { + if (!m_I2NPMsgs.empty ()) + { + if (!m_Sender) m_Sender = std::make_unique(); + m_Sender->SendMessagesTo (m_CurrentHash, m_I2NPMsgs); // send and clear + } + } + + const i2p::data::IdentHash * TunnelEndpoint::GetCurrentHash () const + { + return (m_Sender || !m_I2NPMsgs.empty ()) ? &m_CurrentHash : nullptr; + } } } diff --git a/libi2pd/TunnelEndpoint.h b/libi2pd/TunnelEndpoint.h index c2ffe53d..1e81c445 100644 --- a/libi2pd/TunnelEndpoint.h +++ b/libi2pd/TunnelEndpoint.h @@ -1,9 +1,20 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_ENDPOINT_H__ #define TUNNEL_ENDPOINT_H__ #include -#include +#include +#include #include +#include +#include #include "I2NPProtocol.h" #include "TunnelBase.h" @@ -11,7 +22,7 @@ namespace i2p { namespace tunnel { - class TunnelEndpoint + class TunnelEndpoint final { struct TunnelMessageBlockEx: public TunnelMessageBlock { @@ -21,35 +32,51 @@ namespace tunnel struct Fragment { + Fragment (bool last, uint64_t t, const uint8_t * buf, size_t size): + isLastFragment (last), receiveTime (t), data (size) { memcpy (data.data(), buf, size); }; bool isLastFragment; - std::shared_ptr data; uint64_t receiveTime; // milliseconds since epoch + std::vector data; }; public: - TunnelEndpoint (bool isInbound): m_IsInbound (isInbound), m_NumReceivedBytes (0) {}; - ~TunnelEndpoint (); + TunnelEndpoint (bool isInbound): m_IsInbound (isInbound), m_NumReceivedBytes (0), m_CurrentMsgID (0) {}; + ~TunnelEndpoint () = default; size_t GetNumReceivedBytes () const { return m_NumReceivedBytes; }; void Cleanup (); void HandleDecryptedTunnelDataMsg (std::shared_ptr msg); + void FlushI2NPMsgs (); + const i2p::data::IdentHash * GetCurrentHash () const; // return null if not available + const std::unique_ptr& GetSender () const { return m_Sender; }; + private: - void HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, const TunnelMessageBlockEx& m); + void HandleFollowOnFragment (uint32_t msgID, bool isLastFragment, uint8_t fragmentNum, const uint8_t * fragment, size_t size); + bool ConcatFollowOnFragment (TunnelMessageBlockEx& msg, const uint8_t * fragment, size_t size) const; // true if success + void HandleCurrenMessageFollowOnFragment (const uint8_t * fragment, size_t size, bool isLastFragment); void HandleNextMessage (const TunnelMessageBlock& msg); + void SendMessageTo (const i2p::data::IdentHash& to, std::shared_ptr msg); - void AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, bool isLastFragment, std::shared_ptr data); + void AddOutOfSequenceFragment (uint32_t msgID, uint8_t fragmentNum, bool isLastFragment, const uint8_t * fragment, size_t size); bool ConcatNextOutOfSequenceFragment (uint32_t msgID, TunnelMessageBlockEx& msg); // true if something added void HandleOutOfSequenceFragments (uint32_t msgID, TunnelMessageBlockEx& msg); + void AddIncompleteCurrentMessage (); private: - std::map m_IncompleteMessages; - std::map, Fragment> m_OutOfSequenceFragments; // (msgID, fragment#)->fragment + std::unordered_map m_IncompleteMessages; + std::unordered_map m_OutOfSequenceFragments; // ((msgID << 8) + fragment#)->fragment bool m_IsInbound; size_t m_NumReceivedBytes; + TunnelMessageBlockEx m_CurrentMessage; + uint32_t m_CurrentMsgID; + // I2NP messages to send + std::list > m_I2NPMsgs; // to send + i2p::data::IdentHash m_CurrentHash; // send msgs to + std::unique_ptr m_Sender; }; } } diff --git a/libi2pd/TunnelGateway.cpp b/libi2pd/TunnelGateway.cpp index 7d0069a9..9e27d207 100644 --- a/libi2pd/TunnelGateway.cpp +++ b/libi2pd/TunnelGateway.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "Crypto.h" #include "I2PEndian.h" @@ -11,16 +19,14 @@ namespace i2p namespace tunnel { TunnelGatewayBuffer::TunnelGatewayBuffer (): - m_CurrentTunnelDataMsg (nullptr), m_RemainingSize (0) + m_CurrentTunnelDataMsg (nullptr), m_RemainingSize (0), m_NonZeroRandomBuffer (nullptr) { - RAND_bytes (m_NonZeroRandomBuffer, TUNNEL_DATA_MAX_PAYLOAD_SIZE); - for (size_t i = 0; i < TUNNEL_DATA_MAX_PAYLOAD_SIZE; i++) - if (!m_NonZeroRandomBuffer[i]) m_NonZeroRandomBuffer[i] = 1; } TunnelGatewayBuffer::~TunnelGatewayBuffer () { ClearTunnelDataMsgs (); + if (m_NonZeroRandomBuffer) delete[] m_NonZeroRandomBuffer; } void TunnelGatewayBuffer::PutI2NPMsg (const TunnelMessageBlock& block) @@ -29,6 +35,13 @@ namespace tunnel if (!m_CurrentTunnelDataMsg) { CreateCurrentTunnelDataMessage (); + if (block.data && block.data->onDrop) + { + // onDrop is called for the first fragment in tunnel message + // that's usually true for short TBMs or lookups + m_CurrentTunnelDataMsg->onDrop = block.data->onDrop; + block.data->onDrop = nullptr; + } messageCreated = true; } @@ -51,14 +64,14 @@ namespace tunnel // create fragments const std::shared_ptr & msg = block.data; size_t fullMsgLen = diLen + msg->GetLength () + 2; // delivery instructions + payload + 2 bytes length - + if (!messageCreated && fullMsgLen > m_RemainingSize) // check if we should complete previous message { size_t numFollowOnFragments = fullMsgLen / TUNNEL_DATA_MAX_PAYLOAD_SIZE; // length of bytes doesn't fit full tunnel message // every follow-on fragment adds 7 bytes size_t nonFit = (fullMsgLen + numFollowOnFragments*7) % TUNNEL_DATA_MAX_PAYLOAD_SIZE; - if (!nonFit || nonFit > m_RemainingSize) + if (!nonFit || nonFit > m_RemainingSize || m_RemainingSize < fullMsgLen/5) { CompleteCurrentTunnelDataMessage (); CreateCurrentTunnelDataMessage (); @@ -149,9 +162,7 @@ namespace tunnel void TunnelGatewayBuffer::CreateCurrentTunnelDataMessage () { - m_CurrentTunnelDataMsg = nullptr; - m_CurrentTunnelDataMsg = NewI2NPShortMessage (); - m_CurrentTunnelDataMsg->Align (12); + m_CurrentTunnelDataMsg = NewI2NPTunnelMessage (true); // tunnel endpoint is at least of two tunnel messages size // we reserve space for padding m_CurrentTunnelDataMsg->offset += TUNNEL_DATA_MSG_SIZE + I2NP_HEADER_SIZE; m_CurrentTunnelDataMsg->len = m_CurrentTunnelDataMsg->offset; @@ -172,10 +183,17 @@ namespace tunnel SHA256(payload, size+16, hash); memcpy (buf+20, hash, 4); // checksum payload[-1] = 0; // zero - ptrdiff_t paddingSize = payload - buf - 25; // 25 = 24 + 1 + ptrdiff_t paddingSize = payload - buf - 25; // 25 = 24 + 1 if (paddingSize > 0) { // non-zero padding + if (!m_NonZeroRandomBuffer) // first time? + { + m_NonZeroRandomBuffer = new uint8_t[TUNNEL_DATA_MAX_PAYLOAD_SIZE]; + RAND_bytes (m_NonZeroRandomBuffer, TUNNEL_DATA_MAX_PAYLOAD_SIZE); + for (size_t i = 0; i < TUNNEL_DATA_MAX_PAYLOAD_SIZE; i++) + if (!m_NonZeroRandomBuffer[i]) m_NonZeroRandomBuffer[i] = 1; + } auto randomOffset = rand () % (TUNNEL_DATA_MAX_PAYLOAD_SIZE - paddingSize + 1); memcpy (buf + 24, m_NonZeroRandomBuffer + randomOffset, paddingSize); } @@ -202,21 +220,24 @@ namespace tunnel void TunnelGateway::SendBuffer () { + // create list or tunnel messages m_Buffer.CompleteCurrentTunnelDataMessage (); - std::vector > newTunnelMsgs; + std::list > newTunnelMsgs; const auto& tunnelDataMsgs = m_Buffer.GetTunnelDataMsgs (); for (auto& tunnelMsg : tunnelDataMsgs) { - auto newMsg = CreateEmptyTunnelDataMsg (); - m_Tunnel->EncryptTunnelMsg (tunnelMsg, newMsg); - htobe32buf (newMsg->GetPayload (), m_Tunnel->GetNextTunnelID ()); + auto newMsg = CreateEmptyTunnelDataMsg (false); + m_Tunnel.EncryptTunnelMsg (tunnelMsg, newMsg); + htobe32buf (newMsg->GetPayload (), m_Tunnel.GetNextTunnelID ()); newMsg->FillI2NPMessageHeader (eI2NPTunnelData); + if (tunnelMsg->onDrop) newMsg->onDrop = tunnelMsg->onDrop; newTunnelMsgs.push_back (newMsg); m_NumSentBytes += TUNNEL_DATA_MSG_SIZE; } m_Buffer.ClearTunnelDataMsgs (); - i2p::transport::transports.SendMessages (m_Tunnel->GetNextIdentHash (), newTunnelMsgs); + // send + if (!m_Sender) m_Sender = std::make_unique(); + m_Sender->SendMessagesTo (m_Tunnel.GetNextIdentHash (), std::move (newTunnelMsgs)); } } } - diff --git a/libi2pd/TunnelGateway.h b/libi2pd/TunnelGateway.h index 7959b57b..75f27581 100644 --- a/libi2pd/TunnelGateway.h +++ b/libi2pd/TunnelGateway.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_GATEWAY_H__ #define TUNNEL_GATEWAY_H__ @@ -30,25 +38,27 @@ namespace tunnel std::vector > m_TunnelDataMsgs; std::shared_ptr m_CurrentTunnelDataMsg; size_t m_RemainingSize; - uint8_t m_NonZeroRandomBuffer[TUNNEL_DATA_MAX_PAYLOAD_SIZE]; + uint8_t * m_NonZeroRandomBuffer; }; class TunnelGateway { public: - TunnelGateway (TunnelBase * tunnel): + TunnelGateway (TunnelBase& tunnel): m_Tunnel (tunnel), m_NumSentBytes (0) {}; void SendTunnelDataMsg (const TunnelMessageBlock& block); void PutTunnelDataMsg (const TunnelMessageBlock& block); void SendBuffer (); size_t GetNumSentBytes () const { return m_NumSentBytes; }; + const std::unique_ptr& GetSender () const { return m_Sender; }; private: - TunnelBase * m_Tunnel; + TunnelBase& m_Tunnel; TunnelGatewayBuffer m_Buffer; size_t m_NumSentBytes; + std::unique_ptr m_Sender; }; } } diff --git a/libi2pd/TunnelPool.cpp b/libi2pd/TunnelPool.cpp index 4f740a09..26367aa6 100644 --- a/libi2pd/TunnelPool.cpp +++ b/libi2pd/TunnelPool.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "I2PEndian.h" #include "Crypto.h" @@ -5,25 +13,54 @@ #include "NetDb.hpp" #include "Timestamp.h" #include "Garlic.h" +#include "ECIESX25519AEADRatchetSession.h" #include "Transports.h" #include "Log.h" #include "Tunnel.h" #include "TunnelPool.h" #include "Destination.h" -#ifdef WITH_EVENTS -#include "Event.h" -#endif namespace i2p { namespace tunnel { - - TunnelPool::TunnelPool (int numInboundHops, int numOutboundHops, int numInboundTunnels, int numOutboundTunnels): - m_NumInboundHops (numInboundHops), m_NumOutboundHops (numOutboundHops), - m_NumInboundTunnels (numInboundTunnels), m_NumOutboundTunnels (numOutboundTunnels), m_IsActive (true), - m_CustomPeerSelector(nullptr) + void Path::Add (std::shared_ptr r) { + if (r) + { + peers.push_back (r->GetRouterIdentity ()); + if (r->GetVersion () < i2p::data::NETDB_MIN_SHORT_TUNNEL_BUILD_VERSION || + r->GetRouterIdentity ()->GetCryptoKeyType () != i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + isShort = false; + } + } + + void Path::Reverse () + { + std::reverse (peers.begin (), peers.end ()); + } + + TunnelPool::TunnelPool (int numInboundHops, int numOutboundHops, int numInboundTunnels, + int numOutboundTunnels, int inboundVariance, int outboundVariance, bool isHighBandwidth): + m_NumInboundHops (numInboundHops), m_NumOutboundHops (numOutboundHops), + m_NumInboundTunnels (numInboundTunnels), m_NumOutboundTunnels (numOutboundTunnels), + m_InboundVariance (inboundVariance), m_OutboundVariance (outboundVariance), + m_IsActive (true), m_IsHighBandwidth (isHighBandwidth), m_CustomPeerSelector(nullptr), + m_Rng(i2p::util::GetMonotonicMicroseconds ()%1000000LL) + { + if (m_NumInboundTunnels > TUNNEL_POOL_MAX_INBOUND_TUNNELS_QUANTITY) + m_NumInboundTunnels = TUNNEL_POOL_MAX_INBOUND_TUNNELS_QUANTITY; + if (m_NumOutboundTunnels > TUNNEL_POOL_MAX_OUTBOUND_TUNNELS_QUANTITY) + m_NumOutboundTunnels = TUNNEL_POOL_MAX_OUTBOUND_TUNNELS_QUANTITY; + if (m_InboundVariance < 0 && m_NumInboundHops + m_InboundVariance <= 0) + m_InboundVariance = m_NumInboundHops ? -m_NumInboundHops + 1 : 0; + if (m_OutboundVariance < 0 && m_NumOutboundHops + m_OutboundVariance <= 0) + m_OutboundVariance = m_NumOutboundHops ? -m_NumOutboundHops + 1 : 0; + if (m_InboundVariance > 0 && m_NumInboundHops + m_InboundVariance > STANDARD_NUM_RECORDS) + m_InboundVariance = (m_NumInboundHops < STANDARD_NUM_RECORDS) ? STANDARD_NUM_RECORDS - m_NumInboundHops : 0; + if (m_OutboundVariance > 0 && m_NumOutboundHops + m_OutboundVariance > STANDARD_NUM_RECORDS) + m_OutboundVariance = (m_NumOutboundHops < STANDARD_NUM_RECORDS) ? STANDARD_NUM_RECORDS - m_NumOutboundHops : 0; + m_NextManageTime = i2p::util::GetSecondsSinceEpoch () + m_Rng () % TUNNEL_POOL_MANAGE_INTERVAL; } TunnelPool::~TunnelPool () @@ -40,12 +77,12 @@ namespace tunnel if (m_NumInboundHops > size) { m_NumInboundHops = size; - LogPrint (eLogInfo, "Tunnels: Inbound tunnel length has beed adjusted to ", size, " for explicit peers"); + LogPrint (eLogInfo, "Tunnels: Inbound tunnel length has been adjusted to ", size, " for explicit peers"); } if (m_NumOutboundHops > size) { m_NumOutboundHops = size; - LogPrint (eLogInfo, "Tunnels: Outbound tunnel length has beed adjusted to ", size, " for explicit peers"); + LogPrint (eLogInfo, "Tunnels: Outbound tunnel length has been adjusted to ", size, " for explicit peers"); } m_NumInboundTunnels = 1; m_NumOutboundTunnels = 1; @@ -66,10 +103,14 @@ namespace tunnel it->SetTunnelPool (nullptr); m_OutboundTunnels.clear (); } - m_Tests.clear (); + { + std::unique_lock l(m_TestsMutex); + m_Tests.clear (); + } } - bool TunnelPool::Reconfigure(int inHops, int outHops, int inQuant, int outQuant) { + bool TunnelPool::Reconfigure(int inHops, int outHops, int inQuant, int outQuant) + { if( inHops >= 0 && outHops >= 0 && inQuant > 0 && outQuant > 0) { m_NumInboundHops = inHops; @@ -80,33 +121,39 @@ namespace tunnel } return false; } - + void TunnelPool::TunnelCreated (std::shared_ptr createdTunnel) { if (!m_IsActive) return; { -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnels.created", createdTunnel); -#endif std::unique_lock l(m_InboundTunnelsMutex); + if (createdTunnel->IsRecreated ()) + { + // find and mark old tunnel as expired + createdTunnel->SetRecreated (false); + for (auto& it: m_InboundTunnels) + if (it->IsRecreated () && it->GetNextIdentHash () == createdTunnel->GetNextIdentHash ()) + { + it->SetState (eTunnelStateExpiring); + break; + } + } m_InboundTunnels.insert (createdTunnel); } if (m_LocalDestination) - m_LocalDestination->SetLeaseSetUpdated (); - - OnTunnelBuildResult(createdTunnel, eBuildResultOkay); + m_LocalDestination->SetLeaseSetUpdated (true); } void TunnelPool::TunnelExpired (std::shared_ptr expiredTunnel) { if (expiredTunnel) { -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnels.expired", expiredTunnel); -#endif expiredTunnel->SetTunnelPool (nullptr); - for (auto& it: m_Tests) - if (it.second.second == expiredTunnel) it.second.second = nullptr; + { + std::unique_lock l(m_TestsMutex); + for (auto& it: m_Tests) + if (it.second.second == expiredTunnel) it.second.second = nullptr; + } std::unique_lock l(m_InboundTunnelsMutex); m_InboundTunnels.erase (expiredTunnel); @@ -117,27 +164,21 @@ namespace tunnel { if (!m_IsActive) return; { -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnels.created", createdTunnel); -#endif std::unique_lock l(m_OutboundTunnelsMutex); m_OutboundTunnels.insert (createdTunnel); } - OnTunnelBuildResult(createdTunnel, eBuildResultOkay); - - //CreatePairedInboundTunnel (createdTunnel); } void TunnelPool::TunnelExpired (std::shared_ptr expiredTunnel) { if (expiredTunnel) { -#ifdef WITH_EVENTS - EmitTunnelEvent("tunnels.expired", expiredTunnel); -#endif expiredTunnel->SetTunnelPool (nullptr); - for (auto& it: m_Tests) - if (it.second.first == expiredTunnel) it.second.first = nullptr; + { + std::unique_lock l(m_TestsMutex); + for (auto& it: m_Tests) + if (it.second.first == expiredTunnel) it.second.first = nullptr; + } std::unique_lock l(m_OutboundTunnelsMutex); m_OutboundTunnels.erase (expiredTunnel); @@ -148,43 +189,57 @@ namespace tunnel { std::vector > v; int i = 0; + std::shared_ptr slowTunnel; std::unique_lock l(m_InboundTunnelsMutex); for (const auto& it : m_InboundTunnels) { if (i >= num) break; if (it->IsEstablished ()) { - v.push_back (it); - i++; + if (it->IsSlow () && !slowTunnel) + slowTunnel = it; + else + { + v.push_back (it); + i++; + } } } + if (slowTunnel && (int)v.size () < (num/2+1)) + v.push_back (slowTunnel); return v; } - std::shared_ptr TunnelPool::GetNextOutboundTunnel (std::shared_ptr excluded) const + std::shared_ptr TunnelPool::GetNextOutboundTunnel (std::shared_ptr excluded, + i2p::data::RouterInfo::CompatibleTransports compatible) { std::unique_lock l(m_OutboundTunnelsMutex); - return GetNextTunnel (m_OutboundTunnels, excluded); + return GetNextTunnel (m_OutboundTunnels, excluded, compatible); } - std::shared_ptr TunnelPool::GetNextInboundTunnel (std::shared_ptr excluded) const + std::shared_ptr TunnelPool::GetNextInboundTunnel (std::shared_ptr excluded, + i2p::data::RouterInfo::CompatibleTransports compatible) { std::unique_lock l(m_InboundTunnelsMutex); - return GetNextTunnel (m_InboundTunnels, excluded); + return GetNextTunnel (m_InboundTunnels, excluded, compatible); } template - typename TTunnels::value_type TunnelPool::GetNextTunnel (TTunnels& tunnels, typename TTunnels::value_type excluded) const + typename TTunnels::value_type TunnelPool::GetNextTunnel (TTunnels& tunnels, + typename TTunnels::value_type excluded, i2p::data::RouterInfo::CompatibleTransports compatible) { if (tunnels.empty ()) return nullptr; - uint32_t ind = rand () % (tunnels.size ()/2 + 1), i = 0; + uint32_t ind = m_Rng () % (tunnels.size ()/2 + 1), i = 0; + bool skipped = false; typename TTunnels::value_type tunnel = nullptr; for (const auto& it: tunnels) { - if (it->IsEstablished () && it != excluded) + if (it->IsEstablished () && it != excluded && (compatible & it->GetFarEndTransports ())) { - if(HasLatencyRequirement() && it->LatencyIsKnown() && !it->LatencyFitsRange(m_MinLatency, m_MaxLatency)) { - i ++; + if (it->IsSlow () || (HasLatencyRequirement() && it->LatencyIsKnown() && + !it->LatencyFitsRange(m_MinLatency, m_MaxLatency))) + { + i++; skipped = true; continue; } tunnel = it; @@ -192,14 +247,15 @@ namespace tunnel } if (i > ind && tunnel) break; } - if(HasLatencyRequirement() && !tunnel) { - ind = rand () % (tunnels.size ()/2 + 1), i = 0; + if (!tunnel && skipped) + { + ind = m_Rng () % (tunnels.size ()/2 + 1), i = 0; for (const auto& it: tunnels) { if (it->IsEstablished () && it != excluded) { - tunnel = it; - i++; + tunnel = it; + i++; } if (i > ind && tunnel) break; } @@ -208,10 +264,11 @@ namespace tunnel return tunnel; } - std::shared_ptr TunnelPool::GetNewOutboundTunnel (std::shared_ptr old) const + std::pair, bool> TunnelPool::GetNewOutboundTunnel (std::shared_ptr old) { - if (old && old->IsEstablished ()) return old; + if (old && old->IsEstablished ()) return std::make_pair(old, false); std::shared_ptr tunnel; + bool freshTunnel = false; if (old) { std::unique_lock l(m_OutboundTunnelsMutex); @@ -224,8 +281,11 @@ namespace tunnel } if (!tunnel) + { tunnel = GetNextOutboundTunnel (); - return tunnel; + freshTunnel = true; + } + return std::make_pair(tunnel, freshTunnel); } void TunnelPool::CreateTunnels () @@ -236,8 +296,13 @@ namespace tunnel for (const auto& it : m_OutboundTunnels) if (it->IsEstablished ()) num++; } - for (int i = num; i < m_NumOutboundTunnels; i++) - CreateOutboundTunnel (); + num = m_NumOutboundTunnels - num; + if (num > 0) + { + if (num > TUNNEL_POOL_MAX_NUM_BUILD_REQUESTS) num = TUNNEL_POOL_MAX_NUM_BUILD_REQUESTS; + for (int i = 0; i < num; i++) + CreateOutboundTunnel (); + } num = 0; { @@ -245,11 +310,27 @@ namespace tunnel for (const auto& it : m_InboundTunnels) if (it->IsEstablished ()) num++; } - for (int i = num; i < m_NumInboundTunnels; i++) - CreateInboundTunnel (); + if (!num && !m_OutboundTunnels.empty () && m_NumOutboundHops > 0 && + m_NumInboundHops == m_NumOutboundHops) + { + for (auto it: m_OutboundTunnels) + { + // try to create inbound tunnel through the same path as successive outbound + CreatePairedInboundTunnel (it); + num++; + if (num >= m_NumInboundTunnels) break; + } + } + num = m_NumInboundTunnels - num; + if (num > 0) + { + if (num > TUNNEL_POOL_MAX_NUM_BUILD_REQUESTS) num = TUNNEL_POOL_MAX_NUM_BUILD_REQUESTS; + for (int i = 0; i < num; i++) + CreateInboundTunnel (); + } if (num < m_NumInboundTunnels && m_NumInboundHops <= 0 && m_LocalDestination) // zero hops IB - m_LocalDestination->SetLeaseSetUpdated (); // update LeaseSet immediately + m_LocalDestination->SetLeaseSetUpdated (true); // update LeaseSet immediately } void TunnelPool::TestTunnels () @@ -262,7 +343,7 @@ namespace tunnel for (auto& it: tests) { - LogPrint (eLogWarning, "Tunnels: test of tunnel ", it.first, " failed"); + LogPrint (eLogWarning, "Tunnels: Test of tunnel ", it.first, " failed"); // if test failed again with another tunnel we consider it failed if (it.second.first) { @@ -270,9 +351,15 @@ namespace tunnel { it.second.first->SetState (eTunnelStateFailed); std::unique_lock l(m_OutboundTunnelsMutex); - m_OutboundTunnels.erase (it.second.first); + if (m_OutboundTunnels.size () > 1) // don't fail last tunnel + m_OutboundTunnels.erase (it.second.first); + else + { + it.second.first->SetState (eTunnelStateTestFailed); + CreateOutboundTunnel (); // create new tunnel immediately because last one failed + } } - else + else if (it.second.first->GetState () != eTunnelStateExpiring) it.second.first->SetState (eTunnelStateTestFailed); } if (it.second.second) @@ -281,45 +368,109 @@ namespace tunnel { it.second.second->SetState (eTunnelStateFailed); { - std::unique_lock l(m_InboundTunnelsMutex); - m_InboundTunnels.erase (it.second.second); + bool failed = false; + { + std::unique_lock l(m_InboundTunnelsMutex); + if (m_InboundTunnels.size () > 1) // don't fail last tunnel + { + m_InboundTunnels.erase (it.second.second); + failed = true; + } + else + { + it.second.second->SetState (eTunnelStateTestFailed); + CreateInboundTunnel (); // create new tunnel immediately because last one failed + } + } + if (failed && m_LocalDestination) + m_LocalDestination->SetLeaseSetUpdated (true); } if (m_LocalDestination) - m_LocalDestination->SetLeaseSetUpdated (); + m_LocalDestination->SetLeaseSetUpdated (true); } - else + else if (it.second.second->GetState () != eTunnelStateExpiring) it.second.second->SetState (eTunnelStateTestFailed); } } // new tests - auto it1 = m_OutboundTunnels.begin (); - auto it2 = m_InboundTunnels.begin (); - while (it1 != m_OutboundTunnels.end () && it2 != m_InboundTunnels.end ()) + if (!m_LocalDestination) return; + std::vector, std::shared_ptr > > newTests; + std::vector > outboundTunnels; { - bool failed = false; - if ((*it1)->IsFailed ()) + std::unique_lock l(m_OutboundTunnelsMutex); + for (auto& it: m_OutboundTunnels) + if (it->IsEstablished ()) + outboundTunnels.push_back (it); + } + std::shuffle (outboundTunnels.begin(), outboundTunnels.end(), m_Rng); + std::vector > inboundTunnels; + { + std::unique_lock l(m_InboundTunnelsMutex); + for (auto& it: m_InboundTunnels) + if (it->IsEstablished ()) + inboundTunnels.push_back (it); + } + std::shuffle (inboundTunnels.begin(), inboundTunnels.end(), m_Rng); + auto it1 = outboundTunnels.begin (); + auto it2 = inboundTunnels.begin (); + while (it1 != outboundTunnels.end () && it2 != inboundTunnels.end ()) + { + newTests.push_back(std::make_pair (*it1, *it2)); + ++it1; ++it2; + } + bool isECIES = m_LocalDestination->SupportsEncryptionType (i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD); + for (auto& it: newTests) + { + uint32_t msgID; + RAND_bytes ((uint8_t *)&msgID, 4); { - failed = true; - ++it1; + std::unique_lock l(m_TestsMutex); + m_Tests[msgID] = it; } - if ((*it2)->IsFailed ()) - { - failed = true; - ++it2; - } - if (!failed) - { - uint32_t msgID; - RAND_bytes ((uint8_t *)&msgID, 4); + auto msg = CreateTunnelTestMsg (msgID); + auto outbound = it.first; + auto s = shared_from_this (); + msg->onDrop = [msgID, outbound, s]() { - std::unique_lock l(m_TestsMutex); - m_Tests[msgID] = std::make_pair (*it1, *it2); - } - (*it1)->SendTunnelDataMsg ((*it2)->GetNextIdentHash (), (*it2)->GetNextTunnelID (), - CreateDeliveryStatusMsg (msgID)); - ++it1; ++it2; + // if test msg dropped locally it's outbound tunnel to blame + outbound->SetState (eTunnelStateFailed); + { + std::unique_lock l(s->m_TestsMutex); + s->m_Tests.erase (msgID); + } + { + std::unique_lock l(s->m_OutboundTunnelsMutex); + s->m_OutboundTunnels.erase (outbound); + } + }; + // encrypt + if (isECIES) + { + uint8_t key[32]; RAND_bytes (key, 32); + uint64_t tag; RAND_bytes ((uint8_t *)&tag, 8); + m_LocalDestination->SubmitECIESx25519Key (key, tag); + msg = i2p::garlic::WrapECIESX25519Message (msg, key, tag); } + else + { + uint8_t key[32], tag[32]; + RAND_bytes (key, 32); RAND_bytes (tag, 32); + m_LocalDestination->SubmitSessionKey (key, tag); + i2p::garlic::ElGamalAESSession garlic (key, tag); + msg = garlic.WrapSingleMessage (msg); + } + outbound->SendTunnelDataMsgTo (it.second->GetNextIdentHash (), it.second->GetNextTunnelID (), msg); + } + } + + void TunnelPool::ManageTunnels (uint64_t ts) + { + if (ts > m_NextManageTime || ts + 2*TUNNEL_POOL_MANAGE_INTERVAL < m_NextManageTime) // in case if clock was adjusted + { + CreateTunnels (); + TestTunnels (); + m_NextManageTime = ts + TUNNEL_POOL_MANAGE_INTERVAL + (m_Rng () % TUNNEL_POOL_MANAGE_INTERVAL)/2; } } @@ -328,16 +479,29 @@ namespace tunnel if (m_LocalDestination) m_LocalDestination->ProcessGarlicMessage (msg); else - LogPrint (eLogWarning, "Tunnels: local destination doesn't exist, dropped"); + LogPrint (eLogWarning, "Tunnels: Local destination doesn't exist, dropped"); } void TunnelPool::ProcessDeliveryStatus (std::shared_ptr msg) + { + if (m_LocalDestination) + m_LocalDestination->ProcessDeliveryStatusMessage (msg); + else + LogPrint (eLogWarning, "Tunnels: Local destination doesn't exist, dropped"); + } + + void TunnelPool::ProcessTunnelTest (std::shared_ptr msg) { const uint8_t * buf = msg->GetPayload (); uint32_t msgID = bufbe32toh (buf); buf += 4; uint64_t timestamp = bufbe64toh (buf); + ProcessTunnelTest (msgID, timestamp); + } + + bool TunnelPool::ProcessTunnelTest (uint32_t msgID, uint64_t timestamp) + { decltype(m_Tests)::mapped_type test; bool found = false; { @@ -352,104 +516,175 @@ namespace tunnel } if (found) { + int dlt = (uint64_t)i2p::util::GetMonotonicMicroseconds () - (int64_t)timestamp; + LogPrint (eLogDebug, "Tunnels: Test of ", msgID, " successful. ", dlt, " microseconds"); + if (dlt < 0) dlt = 0; // should not happen + int numHops = 0; + if (test.first) numHops += test.first->GetNumHops (); + if (test.second) numHops += test.second->GetNumHops (); // restore from test failed state if any - if (test.first->GetState () == eTunnelStateTestFailed) - test.first->SetState (eTunnelStateEstablished); - if (test.second->GetState () == eTunnelStateTestFailed) - test.second->SetState (eTunnelStateEstablished); - uint64_t dlt = i2p::util::GetMillisecondsSinceEpoch () - timestamp; - LogPrint (eLogDebug, "Tunnels: test of ", msgID, " successful. ", dlt, " milliseconds"); - // update latency - uint64_t latency = dlt / 2; - test.first->AddLatencySample(latency); - test.second->AddLatencySample(latency); - } - else - { - if (m_LocalDestination) - m_LocalDestination->ProcessDeliveryStatusMessage (msg); - else - LogPrint (eLogWarning, "Tunnels: Local destination doesn't exist, dropped"); + if (test.first) + { + if (test.first->GetState () != eTunnelStateExpiring) + test.first->SetState (eTunnelStateEstablished); + // update latency + int latency = 0; + if (numHops) latency = dlt*test.first->GetNumHops ()/numHops; + if (!latency) latency = dlt/2; + test.first->AddLatencySample (latency); + } + if (test.second) + { + if (test.second->GetState () != eTunnelStateExpiring) + test.second->SetState (eTunnelStateEstablished); + // update latency + int latency = 0; + if (numHops) latency = dlt*test.second->GetNumHops ()/numHops; + if (!latency) latency = dlt/2; + test.second->AddLatencySample (latency); + } } + return found; + } + + bool TunnelPool::IsExploratory () const + { + return i2p::tunnel::tunnels.GetExploratoryPool () == shared_from_this (); } - std::shared_ptr TunnelPool::SelectNextHop (std::shared_ptr prevHop) const + std::shared_ptr TunnelPool::SelectNextHop (std::shared_ptr prevHop, + bool reverse, bool endpoint) const { - bool isExploratory = (i2p::tunnel::tunnels.GetExploratoryPool () == shared_from_this ()); - auto hop = isExploratory ? i2p::data::netdb.GetRandomRouter (prevHop): - i2p::data::netdb.GetHighBandwidthRandomRouter (prevHop); - - if (!hop || hop->GetProfile ()->IsBad ()) - hop = i2p::data::netdb.GetRandomRouter (prevHop); + bool tryClient = !IsExploratory () && !i2p::context.IsLimitedConnectivity (); + std::shared_ptr hop; + for (int i = 0; i < TUNNEL_POOL_MAX_HOP_SELECTION_ATTEMPTS; i++) + { + hop = tryClient ? + (m_IsHighBandwidth ? + i2p::data::netdb.GetHighBandwidthRandomRouter (prevHop, reverse, endpoint) : + i2p::data::netdb.GetRandomRouter (prevHop, reverse, endpoint, true)): + i2p::data::netdb.GetRandomRouter (prevHop, reverse, endpoint, false); + if (hop) + { + if (!hop->HasProfile () || !hop->GetProfile ()->IsBad ()) + break; + } + else if (tryClient) + tryClient = false; + else + return nullptr; + } return hop; } - bool StandardSelectPeers(Path & peers, int numHops, bool inbound, SelectHopFunc nextHop) + bool TunnelPool::StandardSelectPeers(Path & path, int numHops, bool inbound, SelectHopFunc nextHop) { - auto prevHop = i2p::context.GetSharedRouterInfo (); + int start = 0; + std::shared_ptr prevHop = i2p::context.GetSharedRouterInfo (); if(i2p::transport::transports.RoutesRestricted()) { /** if routes are restricted prepend trusted first hop */ auto hop = i2p::transport::transports.GetRestrictedPeer(); if(!hop) return false; - peers.push_back(hop->GetRouterIdentity()); + path.Add (hop); prevHop = hop; + start++; } - else if (i2p::transport::transports.GetNumPeers () > 25) + else if (i2p::transport::transports.GetNumPeers () > 100 || + (inbound && i2p::transport::transports.GetNumPeers () > 25)) { - auto r = i2p::transport::transports.GetRandomPeer (); - if (r && !r->GetProfile ()->IsBad ()) + auto r = i2p::transport::transports.GetRandomPeer (m_IsHighBandwidth && !i2p::context.IsLimitedConnectivity ()); + if (r && r->IsECIES () && (!r->HasProfile () || !r->GetProfile ()->IsBad ()) && + (numHops > 1 || (r->IsV4 () && (!inbound || r->IsPublished (true))))) // first inbound must be published ipv4 { prevHop = r; - peers.push_back (r->GetRouterIdentity ()); - numHops--; + path.Add (r); + start++; } } - for(int i = 0; i < numHops; i++ ) + for(int i = start; i < numHops; i++ ) { - auto hop = nextHop (prevHop); + auto hop = nextHop (prevHop, inbound, i == numHops - 1); + if (!hop && !i) // if no suitable peer found for first hop, try already connected + { + LogPrint (eLogInfo, "Tunnels: Can't select first hop for a tunnel. Trying already connected"); + hop = i2p::transport::transports.GetRandomPeer (false); + if (hop && !hop->IsECIES ()) hop = nullptr; + } if (!hop) { LogPrint (eLogError, "Tunnels: Can't select next hop for ", prevHop->GetIdentHashBase64 ()); return false; } prevHop = hop; - peers.push_back (hop->GetRouterIdentity ()); + path.Add (hop); } + path.farEndTransports = prevHop->GetCompatibleTransports (inbound); // last hop return true; } - bool TunnelPool::SelectPeers (std::vector >& peers, bool isInbound) + bool TunnelPool::SelectPeers (Path& path, bool isInbound) { - int numHops = isInbound ? m_NumInboundHops : m_NumOutboundHops; + // explicit peers in use + if (m_ExplicitPeers) return SelectExplicitPeers (path, isInbound); + // calculate num hops + int numHops; + if (isInbound) + { + numHops = m_NumInboundHops; + if (m_InboundVariance) + { + int offset = m_Rng () % (std::abs (m_InboundVariance) + 1); + if (m_InboundVariance < 0) offset = -offset; + numHops += offset; + } + } + else + { + numHops = m_NumOutboundHops; + if (m_OutboundVariance) + { + int offset = m_Rng () % (std::abs (m_OutboundVariance) + 1); + if (m_OutboundVariance < 0) offset = -offset; + numHops += offset; + } + } // peers is empty if (numHops <= 0) return true; // custom peer selector in use ? { std::lock_guard lock(m_CustomPeerSelectorMutex); if (m_CustomPeerSelector) - return m_CustomPeerSelector->SelectPeers(peers, numHops, isInbound); + return m_CustomPeerSelector->SelectPeers(path, numHops, isInbound); } - // explicit peers in use - if (m_ExplicitPeers) return SelectExplicitPeers (peers, isInbound); - return StandardSelectPeers(peers, numHops, isInbound, std::bind(&TunnelPool::SelectNextHop, this, std::placeholders::_1)); + return StandardSelectPeers(path, numHops, isInbound, std::bind(&TunnelPool::SelectNextHop, this, + std::placeholders::_1, std::placeholders::_2, std::placeholders::_3)); } - bool TunnelPool::SelectExplicitPeers (std::vector >& peers, bool isInbound) + bool TunnelPool::SelectExplicitPeers (Path& path, bool isInbound) { - int size = m_ExplicitPeers->size (); - std::vector peerIndicies; - for (int i = 0; i < size; i++) peerIndicies.push_back(i); - std::random_shuffle (peerIndicies.begin(), peerIndicies.end()); - + if (!m_ExplicitPeers->size ()) return false; int numHops = isInbound ? m_NumInboundHops : m_NumOutboundHops; + if (numHops > (int)m_ExplicitPeers->size ()) numHops = m_ExplicitPeers->size (); for (int i = 0; i < numHops; i++) { - auto& ident = (*m_ExplicitPeers)[peerIndicies[i]]; + auto& ident = (*m_ExplicitPeers)[i]; auto r = i2p::data::netdb.FindRouter (ident); if (r) - peers.push_back (r->GetRouterIdentity ()); + { + if (r->IsECIES ()) + { + path.Add (r); + if (i == numHops - 1) + path.farEndTransports = r->GetCompatibleTransports (isInbound); + } + else + { + LogPrint (eLogError, "Tunnels: ElGamal router ", ident.ToBase64 (), " is not supported"); + return false; + } + } else { LogPrint (eLogInfo, "Tunnels: Can't find router for ", ident.ToBase64 ()); @@ -462,21 +697,20 @@ namespace tunnel void TunnelPool::CreateInboundTunnel () { - auto outboundTunnel = GetNextOutboundTunnel (); - if (!outboundTunnel) - outboundTunnel = tunnels.GetNextOutboundTunnel (); LogPrint (eLogDebug, "Tunnels: Creating destination inbound tunnel..."); - std::vector > peers; - if (SelectPeers (peers, true)) + Path path; + if (SelectPeers (path, true)) { + auto outboundTunnel = GetNextOutboundTunnel (nullptr, path.farEndTransports); + if (!outboundTunnel) + outboundTunnel = tunnels.GetNextOutboundTunnel (); std::shared_ptr config; if (m_NumInboundHops > 0) { - std::reverse (peers.begin (), peers.end ()); - config = std::make_shared (peers); + path.Reverse (); + config = std::make_shared (path.peers, path.isShort, path.farEndTransports); } - auto tunnel = tunnels.CreateInboundTunnel (config, outboundTunnel); - tunnel->SetTunnelPool (shared_from_this ()); + auto tunnel = tunnels.CreateInboundTunnel (config, shared_from_this (), outboundTunnel); if (tunnel->IsEstablished ()) // zero hops TunnelCreated (tunnel); } @@ -486,67 +720,96 @@ namespace tunnel void TunnelPool::RecreateInboundTunnel (std::shared_ptr tunnel) { - auto outboundTunnel = GetNextOutboundTunnel (); + if (IsExploratory () || tunnel->IsSlow ()) // always create new exploratory tunnel or if slow + { + CreateInboundTunnel (); + return; + } + auto outboundTunnel = GetNextOutboundTunnel (nullptr, tunnel->GetFarEndTransports ()); if (!outboundTunnel) outboundTunnel = tunnels.GetNextOutboundTunnel (); LogPrint (eLogDebug, "Tunnels: Re-creating destination inbound tunnel..."); std::shared_ptr config; - if (m_NumInboundHops > 0 && tunnel->GetPeers().size()) + if (m_NumInboundHops > 0) { - config = std::make_shared(tunnel->GetPeers ()); - } - if (m_NumInboundHops == 0 || config) + auto peers = tunnel->GetPeers(); + if (peers.size ()&& ValidatePeers (peers)) + config = std::make_shared(tunnel->GetPeers (), + tunnel->IsShortBuildMessage (), tunnel->GetFarEndTransports ()); + } + if (!m_NumInboundHops || config) { - auto newTunnel = tunnels.CreateInboundTunnel (config, outboundTunnel); - newTunnel->SetTunnelPool (shared_from_this()); + auto newTunnel = tunnels.CreateInboundTunnel (config, shared_from_this(), outboundTunnel); if (newTunnel->IsEstablished ()) // zero hops TunnelCreated (newTunnel); + else + newTunnel->SetRecreated (true); } } void TunnelPool::CreateOutboundTunnel () { - auto inboundTunnel = GetNextInboundTunnel (); - if (!inboundTunnel) - inboundTunnel = tunnels.GetNextInboundTunnel (); - if (inboundTunnel) + LogPrint (eLogDebug, "Tunnels: Creating destination outbound tunnel..."); + Path path; + if (SelectPeers (path, false)) { - LogPrint (eLogDebug, "Tunnels: Creating destination outbound tunnel..."); - std::vector > peers; - if (SelectPeers (peers, false)) + auto inboundTunnel = GetNextInboundTunnel (nullptr, path.farEndTransports); + if (!inboundTunnel) + inboundTunnel = tunnels.GetNextInboundTunnel (); + if (!inboundTunnel) { - std::shared_ptr config; - if (m_NumOutboundHops > 0) - config = std::make_shared(peers, inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()); - auto tunnel = tunnels.CreateOutboundTunnel (config); + LogPrint (eLogError, "Tunnels: Can't create outbound tunnel, no inbound tunnels found"); + return; + } + + if (m_LocalDestination && !m_LocalDestination->SupportsEncryptionType (i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD)) + path.isShort = false; // because can't handle ECIES encrypted reply + + std::shared_ptr config; + if (m_NumOutboundHops > 0) + config = std::make_shared(path.peers, inboundTunnel->GetNextTunnelID (), + inboundTunnel->GetNextIdentHash (), path.isShort, path.farEndTransports); + + std::shared_ptr tunnel; + if (path.isShort) + { + // TODO: implement it better + tunnel = tunnels.CreateOutboundTunnel (config, inboundTunnel->GetTunnelPool ()); tunnel->SetTunnelPool (shared_from_this ()); - if (tunnel->IsEstablished ()) // zero hops - TunnelCreated (tunnel); } else - LogPrint (eLogError, "Tunnels: Can't create outbound tunnel, no peers available"); + tunnel = tunnels.CreateOutboundTunnel (config, shared_from_this ()); + if (tunnel && tunnel->IsEstablished ()) // zero hops + TunnelCreated (tunnel); } else - LogPrint (eLogError, "Tunnels: Can't create outbound tunnel, no inbound tunnels found"); + LogPrint (eLogError, "Tunnels: Can't create outbound tunnel, no peers available"); } void TunnelPool::RecreateOutboundTunnel (std::shared_ptr tunnel) { - auto inboundTunnel = GetNextInboundTunnel (); + if (IsExploratory () || tunnel->IsSlow ()) // always create new exploratory tunnel or if slow + { + CreateOutboundTunnel (); + return; + } + auto inboundTunnel = GetNextInboundTunnel (nullptr, tunnel->GetFarEndTransports ()); if (!inboundTunnel) inboundTunnel = tunnels.GetNextInboundTunnel (); if (inboundTunnel) { LogPrint (eLogDebug, "Tunnels: Re-creating destination outbound tunnel..."); std::shared_ptr config; - if (m_NumOutboundHops > 0 && tunnel->GetPeers().size()) + if (m_NumOutboundHops > 0) { - config = std::make_shared(tunnel->GetPeers (), inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()); + auto peers = tunnel->GetPeers(); + if (peers.size () && ValidatePeers (peers)) + config = std::make_shared(peers, inboundTunnel->GetNextTunnelID (), + inboundTunnel->GetNextIdentHash (), inboundTunnel->IsShortBuildMessage (), tunnel->GetFarEndTransports ()); } - if(m_NumOutboundHops == 0 || config) + if (!m_NumOutboundHops || config) { - auto newTunnel = tunnels.CreateOutboundTunnel (config); - newTunnel->SetTunnelPool (shared_from_this ()); + auto newTunnel = tunnels.CreateOutboundTunnel (config, shared_from_this ()); if (newTunnel->IsEstablished ()) // zero hops TunnelCreated (newTunnel); } @@ -558,8 +821,12 @@ namespace tunnel void TunnelPool::CreatePairedInboundTunnel (std::shared_ptr outboundTunnel) { LogPrint (eLogDebug, "Tunnels: Creating paired inbound tunnel..."); - auto tunnel = tunnels.CreateInboundTunnel (std::make_shared(outboundTunnel->GetInvertedPeers ()), outboundTunnel); - tunnel->SetTunnelPool (shared_from_this ()); + auto tunnel = tunnels.CreateInboundTunnel ( + m_NumOutboundHops > 0 ? std::make_shared(outboundTunnel->GetInvertedPeers (), + outboundTunnel->IsShortBuildMessage ()) : nullptr, + shared_from_this (), outboundTunnel); + if (tunnel->IsEstablished ()) // zero hops + TunnelCreated (tunnel); } void TunnelPool::SetCustomPeerSelector(ITunnelPeerSelector * selector) @@ -579,11 +846,26 @@ namespace tunnel return m_CustomPeerSelector != nullptr; } + bool TunnelPool::ValidatePeers (std::vector >& peers) const + { + bool highBandwidth = !IsExploratory (); + for (auto it: peers) + { + auto r = i2p::data::netdb.FindRouter (it->GetIdentHash ()); + if (r) + { + if (r->IsHighCongestion (highBandwidth)) return false; + it = r->GetIdentity (); // use identity from updated RouterInfo + } + } + return true; + } + std::shared_ptr TunnelPool::GetLowestLatencyInboundTunnel(std::shared_ptr exclude) const { std::shared_ptr tun = nullptr; std::unique_lock lock(m_InboundTunnelsMutex); - uint64_t min = 1000000; + int min = 1000000; for (const auto & itr : m_InboundTunnels) { if(!itr->LatencyIsKnown()) continue; auto l = itr->GetMeanLatency(); @@ -599,7 +881,7 @@ namespace tunnel { std::shared_ptr tun = nullptr; std::unique_lock lock(m_OutboundTunnelsMutex); - uint64_t min = 1000000; + int min = 1000000; for (const auto & itr : m_OutboundTunnels) { if(!itr->LatencyIsKnown()) continue; auto l = itr->GetMeanLatency(); @@ -610,11 +892,5 @@ namespace tunnel } return tun; } - - void TunnelPool::OnTunnelBuildResult(std::shared_ptr tunnel, TunnelBuildResult result) - { - auto peers = tunnel->GetPeers(); - if(m_CustomPeerSelector) m_CustomPeerSelector->OnBuildResult(peers, tunnel->IsInbound(), result); - } } } diff --git a/libi2pd/TunnelPool.h b/libi2pd/TunnelPool.h index fc46930c..0ebfd1ac 100644 --- a/libi2pd/TunnelPool.h +++ b/libi2pd/TunnelPool.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef TUNNEL_POOL__ #define TUNNEL_POOL__ @@ -7,6 +15,7 @@ #include #include #include +#include #include "Identity.h" #include "LeaseSet.h" #include "RouterInfo.h" @@ -19,38 +28,41 @@ namespace i2p { namespace tunnel { + const int TUNNEL_POOL_MANAGE_INTERVAL = 10; // in seconds + const int TUNNEL_POOL_MAX_INBOUND_TUNNELS_QUANTITY = 16; + const int TUNNEL_POOL_MAX_OUTBOUND_TUNNELS_QUANTITY = 16; + const int TUNNEL_POOL_MAX_NUM_BUILD_REQUESTS = 3; + const int TUNNEL_POOL_MAX_HOP_SELECTION_ATTEMPTS = 3; + class Tunnel; class InboundTunnel; class OutboundTunnel; - - enum TunnelBuildResult { - eBuildResultOkay, // tunnel was built okay - eBuildResultRejected, // tunnel build was explicitly rejected - eBuildResultTimeout // tunnel build timed out - }; - typedef std::shared_ptr Peer; - typedef std::vector Path; + struct Path + { + std::vector peers; + bool isShort = true; + i2p::data::RouterInfo::CompatibleTransports farEndTransports = i2p::data::RouterInfo::eAllTransports; + + void Add (std::shared_ptr r); + void Reverse (); + }; /** interface for custom tunnel peer selection algorithm */ struct ITunnelPeerSelector { virtual ~ITunnelPeerSelector() {}; virtual bool SelectPeers(Path & peers, int hops, bool isInbound) = 0; - virtual bool OnBuildResult(const Path & peers, bool isInbound, TunnelBuildResult result) = 0; }; - - typedef std::function(std::shared_ptr)> SelectHopFunc; - // standard peer selection algorithm - bool StandardSelectPeers(Path & path, int hops, bool inbound, SelectHopFunc nextHop); - class TunnelPool: public std::enable_shared_from_this // per local destination { + typedef std::function(std::shared_ptr, bool, bool)> SelectHopFunc; public: - TunnelPool (int numInboundHops, int numOutboundHops, int numInboundTunnels, int numOutboundTunnels); + TunnelPool (int numInboundHops, int numOutboundHops, int numInboundTunnels, + int numOutboundTunnels, int inboundVariance, int outboundVariance, bool isHighBandwidth); ~TunnelPool (); std::shared_ptr GetLocalDestination () const { return m_LocalDestination; }; @@ -65,13 +77,18 @@ namespace tunnel void RecreateInboundTunnel (std::shared_ptr tunnel); void RecreateOutboundTunnel (std::shared_ptr tunnel); std::vector > GetInboundTunnels (int num) const; - std::shared_ptr GetNextOutboundTunnel (std::shared_ptr excluded = nullptr) const; - std::shared_ptr GetNextInboundTunnel (std::shared_ptr excluded = nullptr) const; - std::shared_ptr GetNewOutboundTunnel (std::shared_ptr old) const; - void TestTunnels (); + std::shared_ptr GetNextOutboundTunnel (std::shared_ptr excluded = nullptr, + i2p::data::RouterInfo::CompatibleTransports compatible = i2p::data::RouterInfo::eAllTransports); + std::shared_ptr GetNextInboundTunnel (std::shared_ptr excluded = nullptr, + i2p::data::RouterInfo::CompatibleTransports compatible = i2p::data::RouterInfo::eAllTransports); + std::pair, bool> GetNewOutboundTunnel (std::shared_ptr old); + void ManageTunnels (uint64_t ts); void ProcessGarlicMessage (std::shared_ptr msg); void ProcessDeliveryStatus (std::shared_ptr msg); + void ProcessTunnelTest (std::shared_ptr msg); + bool ProcessTunnelTest (uint32_t msgID, uint64_t timestamp); + bool IsExploratory () const; bool IsActive () const { return m_IsActive; }; void SetActive (bool isActive) { m_IsActive = isActive; }; void DetachTunnels (); @@ -83,40 +100,45 @@ namespace tunnel /** i2cp reconfigure */ bool Reconfigure(int inboundHops, int outboundHops, int inboundQuant, int outboundQuant); - + void SetCustomPeerSelector(ITunnelPeerSelector * selector); void UnsetCustomPeerSelector(); bool HasCustomPeerSelector(); - /** @brief make this tunnel pool yield tunnels that fit latency range [min, max] */ - void RequireLatency(uint64_t min, uint64_t max) { m_MinLatency = min; m_MaxLatency = max; } + /** @brief make this tunnel pool yield tunnels that fit latency range [min, max] */ + void RequireLatency(int min, int max) { m_MinLatency = min; m_MaxLatency = max; } - /** @brief return true if this tunnel pool has a latency requirement */ - bool HasLatencyRequirement() const { return m_MinLatency > 0 && m_MaxLatency > 0; } + /** @brief return true if this tunnel pool has a latency requirement */ + bool HasLatencyRequirement() const { return m_MinLatency > 0 && m_MaxLatency > 0; } - /** @brief get the lowest latency tunnel in this tunnel pool regardless of latency requirements */ - std::shared_ptr GetLowestLatencyInboundTunnel(std::shared_ptr exclude=nullptr) const; - std::shared_ptr GetLowestLatencyOutboundTunnel(std::shared_ptr exclude=nullptr) const; + /** @brief get the lowest latency tunnel in this tunnel pool regardless of latency requirements */ + std::shared_ptr GetLowestLatencyInboundTunnel(std::shared_ptr exclude = nullptr) const; + std::shared_ptr GetLowestLatencyOutboundTunnel(std::shared_ptr exclude = nullptr) const; - void OnTunnelBuildResult(std::shared_ptr tunnel, TunnelBuildResult result); - - // for overriding tunnel peer selection - std::shared_ptr SelectNextHop (std::shared_ptr prevHop) const; + // for overriding tunnel peer selection + std::shared_ptr SelectNextHop (std::shared_ptr prevHop, bool reverse, bool endpoint) const; + bool StandardSelectPeers(Path & path, int numHops, bool inbound, SelectHopFunc nextHop); + std::mt19937& GetRng () { return m_Rng; } + private: + void TestTunnels (); void CreateInboundTunnel (); void CreateOutboundTunnel (); void CreatePairedInboundTunnel (std::shared_ptr outboundTunnel); template - typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels, typename TTunnels::value_type excluded) const; - bool SelectPeers (std::vector >& hops, bool isInbound); - bool SelectExplicitPeers (std::vector >& hops, bool isInbound); + typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels, + typename TTunnels::value_type excluded, i2p::data::RouterInfo::CompatibleTransports compatible); + bool SelectPeers (Path& path, bool isInbound); + bool SelectExplicitPeers (Path& path, bool isInbound); + bool ValidatePeers (std::vector >& peers) const; private: std::shared_ptr m_LocalDestination; - int m_NumInboundHops, m_NumOutboundHops, m_NumInboundTunnels, m_NumOutboundTunnels; + int m_NumInboundHops, m_NumOutboundHops, m_NumInboundTunnels, m_NumOutboundTunnels, + m_InboundVariance, m_OutboundVariance; std::shared_ptr > m_ExplicitPeers; mutable std::mutex m_InboundTunnelsMutex; std::set, TunnelCreationTimeCmp> m_InboundTunnels; // recent tunnel appears first @@ -124,13 +146,16 @@ namespace tunnel std::set, TunnelCreationTimeCmp> m_OutboundTunnels; mutable std::mutex m_TestsMutex; std::map, std::shared_ptr > > m_Tests; - bool m_IsActive; + bool m_IsActive, m_IsHighBandwidth; + uint64_t m_NextManageTime; // in seconds std::mutex m_CustomPeerSelectorMutex; ITunnelPeerSelector * m_CustomPeerSelector; - uint64_t m_MinLatency=0; // if > 0 this tunnel pool will try building tunnels with minimum latency by ms - uint64_t m_MaxLatency=0; // if > 0 this tunnel pool will try building tunnels with maximum latency by ms + int m_MinLatency = 0; // if > 0 this tunnel pool will try building tunnels with minimum latency by ms + int m_MaxLatency = 0; // if > 0 this tunnel pool will try building tunnels with maximum latency by ms + std::mt19937 m_Rng; + public: // for HTTP only diff --git a/libi2pd/api.cpp b/libi2pd/api.cpp index ca72ae49..7dc11157 100644 --- a/libi2pd/api.cpp +++ b/libi2pd/api.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include "Config.h" @@ -31,8 +39,11 @@ namespace api bool precomputation; i2p::config::GetOption("precomputation.elgamal", precomputation); i2p::crypto::InitCrypto (precomputation); - int netID; i2p::config::GetOption("netid", netID); - i2p::context.SetNetID (netID); + int netID; i2p::config::GetOption("netid", netID); + i2p::context.SetNetID (netID); + + bool checkReserved; i2p::config::GetOption("reservedrange", checkReserved); + i2p::transport::transports.SetCheckReserved(checkReserved); i2p::context.Init (); } @@ -49,22 +60,27 @@ namespace api else i2p::log::Logger().SendTo (i2p::fs::DataDirPath (i2p::fs::GetAppName () + ".log")); i2p::log::Logger().Start (); - LogPrint(eLogInfo, "API: starting NetDB"); + i2p::transport::InitTransports (); + LogPrint(eLogInfo, "API: Starting NetDB"); i2p::data::netdb.Start(); - LogPrint(eLogInfo, "API: starting Transports"); + LogPrint(eLogInfo, "API: Starting Transports"); i2p::transport::transports.Start(); - LogPrint(eLogInfo, "API: starting Tunnels"); + LogPrint(eLogInfo, "API: Starting Tunnels"); i2p::tunnel::tunnels.Start(); + LogPrint(eLogInfo, "API: Starting Router context"); + i2p::context.Start(); } void StopI2P () { - LogPrint(eLogInfo, "API: shutting down"); - LogPrint(eLogInfo, "API: stopping Tunnels"); + LogPrint(eLogInfo, "API: Shutting down"); + LogPrint(eLogInfo, "API: Stopping Router context"); + i2p::context.Stop(); + LogPrint(eLogInfo, "API: Stopping Tunnels"); i2p::tunnel::tunnels.Stop(); - LogPrint(eLogInfo, "API: stopping Transports"); + LogPrint(eLogInfo, "API: Stopping Transports"); i2p::transport::transports.Stop(); - LogPrint(eLogInfo, "API: stopping NetDB"); + LogPrint(eLogInfo, "API: Stopping NetDB"); i2p::data::netdb.Stop(); i2p::log::Logger().Stop (); } @@ -77,7 +93,7 @@ namespace api std::shared_ptr CreateLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params) { - auto localDestination = std::make_shared (keys, isPublic, params); + auto localDestination = std::make_shared (keys, isPublic, params); localDestination->Start (); return localDestination; } @@ -86,7 +102,7 @@ namespace api const std::map * params) { i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType); - auto localDestination = std::make_shared (keys, isPublic, params); + auto localDestination = std::make_shared (keys, isPublic, params); localDestination->Start (); return localDestination; } @@ -133,4 +149,3 @@ namespace api } } } - diff --git a/libi2pd/api.h b/libi2pd/api.h index f64590d1..9b0256d8 100644 --- a/libi2pd/api.h +++ b/libi2pd/api.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef API_H__ #define API_H__ @@ -35,4 +43,3 @@ namespace api } #endif - diff --git a/libi2pd/util.cpp b/libi2pd/util.cpp index 96e8ad4c..925cf629 100644 --- a/libi2pd/util.cpp +++ b/libi2pd/util.cpp @@ -1,11 +1,45 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include +#include +#include #include #include "util.h" #include "Log.h" +#include "I2PEndian.h" -#ifdef WIN32 +#if !defined (__FreeBSD__) && !defined(_MSC_VER) +#include +#endif + +#if defined(__OpenBSD__) || defined(__FreeBSD__) +#include +#endif + +#if defined(__APPLE__) +# include +#endif + +#if defined(__HAIKU__) +#include +#include +#include +#include +#ifndef _DEFAULT_SOURCE +#define _DEFAULT_SOURCE +#include +#endif +#endif + +#ifdef _WIN32 #include #include #include @@ -15,16 +49,25 @@ #include #include -#ifdef _MSC_VER -#pragma comment(lib, "IPHLPAPI.lib") -#endif // _MSC_VER +#if defined(_MSC_VER) +const DWORD MS_VC_EXCEPTION = 0x406D1388; +#pragma pack(push,8) +typedef struct tagTHREADNAME_INFO +{ + DWORD dwType; + LPCSTR szName; + DWORD dwThreadID; + DWORD dwFlags; +} THREADNAME_INFO; +#pragma pack(pop) +#endif #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) #define FREE(x) HeapFree(GetProcessHeap(), 0, (x)) -// inet_pton exists Windows since Vista, but XP haven't that function! +// inet_pton and inet_ntop have been in Windows since Vista, but XP doesn't have these functions! // This function was written by Petar Korponai?. See http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found -int inet_pton_xp(int af, const char *src, void *dst) +int inet_pton_xp (int af, const char *src, void *dst) { struct sockaddr_storage ss; int size = sizeof (ss); @@ -48,40 +91,145 @@ int inet_pton_xp(int af, const char *src, void *dst) } return 0; } -#else /* !WIN32 => UNIX */ + +const char *inet_ntop_xp(int af, const void *src, char *dst, socklen_t size) +{ + struct sockaddr_storage ss; + unsigned long s = size; + + ZeroMemory(&ss, sizeof(ss)); + ss.ss_family = af; + + switch (af) + { + case AF_INET: + ((struct sockaddr_in *)&ss)->sin_addr = *(struct in_addr *)src; + break; + case AF_INET6: + ((struct sockaddr_in6 *)&ss)->sin6_addr = *(struct in6_addr *)src; + break; + default: + return NULL; + } + /* cannot directly use &size because of strict aliasing rules */ + return (WSAAddressToString((struct sockaddr *)&ss, sizeof(ss), NULL, dst, &s) == 0)? dst : NULL; +} + +#else /* !_WIN32 => UNIX */ #include +#ifdef ANDROID +#include "ifaddrs.h" +#else #include #endif +#endif + +#define address_pair_v4(a,b) std::pair{ boost::asio::ip::make_address (a).to_v4 ().to_uint (), boost::asio::ip::make_address(b).to_v4 ().to_uint () } +#define address_pair_v6(a,b) std::pair{ boost::asio::ip::make_address (a).to_v6 ().to_bytes (), boost::asio::ip::make_address(b).to_v6 ().to_bytes () } namespace i2p { namespace util { -namespace net -{ -#ifdef WIN32 - bool IsWindowsXPorLater() + + void RunnableService::StartIOService () { - OSVERSIONINFO osvi; - - ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); - osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&osvi); - - if (osvi.dwMajorVersion <= 5) - return true; - else - return false; + if (!m_IsRunning) + { + m_IsRunning = true; + m_Thread.reset (new std::thread (std::bind (& RunnableService::Run, this))); + } } - int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback) + void RunnableService::StopIOService () { + if (m_IsRunning) + { + m_IsRunning = false; + m_Service.stop (); + if (m_Thread) + { + m_Thread->join (); + m_Thread = nullptr; + } + } + } + + void RunnableService::Run () + { + SetThreadName(m_Name.c_str()); + + while (m_IsRunning) + { + try + { + m_Service.run (); + } + catch (std::exception& ex) + { + LogPrint (eLogError, m_Name, ": Runtime exception: ", ex.what ()); + } + } + } + + void RunnableService::SetName (std::string_view name) + { + if (name.length() < 16) + m_Name = name; + else + m_Name = name.substr(0,15); + } + + void SetThreadName (const char *name) { +#if defined(__APPLE__) +# if (!defined(MAC_OS_X_VERSION_10_6) || \ + (MAC_OS_X_VERSION_MAX_ALLOWED < 1060) || \ + defined(__POWERPC__)) + /* pthread_setname_np is not there on <10.6 and all PPC. + So do nothing. */ +# else + pthread_setname_np((char*)name); +# endif +#elif defined(__FreeBSD__) || defined(__OpenBSD__) + pthread_set_name_np(pthread_self(), name); +#elif defined(__NetBSD__) + pthread_setname_np(pthread_self(), "%s", (void *)name); +#elif !defined(__gnu_hurd__) + #if defined(_MSC_VER) + THREADNAME_INFO info; + info.dwType = 0x1000; + info.szName = name; + info.dwThreadID = -1; + info.dwFlags = 0; + #pragma warning(push) + #pragma warning(disable: 6320 6322) + __try { + RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info); + } + __except (EXCEPTION_EXECUTE_HANDLER) { + } + #pragma warning(pop) + #else + pthread_setname_np(pthread_self(), name); + #endif +#endif + } + +namespace net +{ +#ifdef _WIN32 + int GetMTUWindowsIpv4 (sockaddr_in inputAddress, int fallback) + { + typedef const char *(* IPN)(int af, const void *src, char *dst, socklen_t size); + IPN inetntop = (IPN)(void*)GetProcAddress (GetModuleHandle ("ws2_32.dll"), "InetNtop"); + if (!inetntop) inetntop = inet_ntop_xp; // use own implementation if not found + ULONG outBufLen = 0; PIP_ADAPTER_ADDRESSES pAddresses = nullptr; PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; - if(GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) + if (GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) == ERROR_BUFFER_OVERFLOW) { FREE(pAddresses); @@ -92,30 +240,33 @@ namespace net AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen ); - if(dwRetVal != NO_ERROR) + if (dwRetVal != NO_ERROR) { - LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); + LogPrint(eLogError, "NetIface: GetMTU: Enclosed GetAdaptersAddresses() call has failed"); FREE(pAddresses); return fallback; } pCurrAddresses = pAddresses; - while(pCurrAddresses) + while (pCurrAddresses) { - PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; - pUnicast = pCurrAddresses->FirstUnicastAddress; - if(pUnicast == nullptr) - LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv4 address, this is not supported"); + if (pUnicast == nullptr) + LogPrint(eLogError, "NetIface: GetMTU: Not a unicast IPv4 address, this is not supported"); - for(int i = 0; pUnicast != nullptr; ++i) + while (pUnicast != nullptr) { LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; sockaddr_in* localInterfaceAddress = (sockaddr_in*) lpAddr; - if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) + if (localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) { - auto result = pAddresses->Mtu; + char addr[INET_ADDRSTRLEN]; + inetntop(AF_INET, &(((struct sockaddr_in *)localInterfaceAddress)->sin_addr), addr, INET_ADDRSTRLEN); + + auto result = pCurrAddresses->Mtu; FREE(pAddresses); + pAddresses = nullptr; + LogPrint(eLogInfo, "NetIface: GetMTU: Using ", result, " bytes for IPv4 address ", addr); return result; } pUnicast = pUnicast->Next; @@ -123,19 +274,23 @@ namespace net pCurrAddresses = pCurrAddresses->Next; } - LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv4 addresses found"); + LogPrint(eLogError, "NetIface: GetMTU: No usable unicast IPv4 addresses found"); FREE(pAddresses); return fallback; } - int GetMTUWindowsIpv6(sockaddr_in6 inputAddress, int fallback) + int GetMTUWindowsIpv6 (sockaddr_in6 inputAddress, int fallback) { + typedef const char *(* IPN)(int af, const void *src, char *dst, socklen_t size); + IPN inetntop = (IPN)(void*)GetProcAddress (GetModuleHandle ("ws2_32.dll"), "InetNtop"); + if (!inetntop) inetntop = inet_ntop_xp; // use own implementation if not found + ULONG outBufLen = 0; PIP_ADAPTER_ADDRESSES pAddresses = nullptr; PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; - if(GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) + if (GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) == ERROR_BUFFER_OVERFLOW) { FREE(pAddresses); @@ -146,23 +301,22 @@ namespace net AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen ); - if(dwRetVal != NO_ERROR) + if (dwRetVal != NO_ERROR) { - LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed"); + LogPrint(eLogError, "NetIface: GetMTU: Enclosed GetAdaptersAddresses() call has failed"); FREE(pAddresses); return fallback; } bool found_address = false; pCurrAddresses = pAddresses; - while(pCurrAddresses) + while (pCurrAddresses) { - PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress; pUnicast = pCurrAddresses->FirstUnicastAddress; - if(pUnicast == nullptr) - LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv6 address, this is not supported"); + if (pUnicast == nullptr) + LogPrint(eLogError, "NetIface: GetMTU: Not a unicast IPv6 address, this is not supported"); - for(int i = 0; pUnicast != nullptr; ++i) + while (pUnicast != nullptr) { LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr; @@ -177,9 +331,13 @@ namespace net if (found_address) { - auto result = pAddresses->Mtu; + char addr[INET6_ADDRSTRLEN]; + inetntop(AF_INET6, &(((struct sockaddr_in6 *)localInterfaceAddress)->sin6_addr), addr, INET6_ADDRSTRLEN); + + auto result = pCurrAddresses->Mtu; FREE(pAddresses); pAddresses = nullptr; + LogPrint(eLogInfo, "NetIface: GetMTU: Using ", result, " bytes for IPv6 address ", addr); return result; } pUnicast = pUnicast->Next; @@ -188,12 +346,12 @@ namespace net pCurrAddresses = pCurrAddresses->Next; } - LogPrint(eLogError, "NetIface: GetMTU(): no usable unicast ipv6 addresses found"); + LogPrint(eLogError, "NetIface: GetMTU: No usable unicast IPv6 addresses found"); FREE(pAddresses); return fallback; } - int GetMTUWindows(const boost::asio::ip::address& localAddress, int fallback) + int GetMTUWindows (const boost::asio::ip::address& localAddress, int fallback) { #ifdef UNICODE string localAddress_temporary = localAddress.to_string(); @@ -202,32 +360,33 @@ namespace net std::string localAddressUniversal = localAddress.to_string(); #endif - if (IsWindowsXPorLater()) - { - #define inet_pton inet_pton_xp - } + typedef int (* IPN)(int af, const char *src, void *dst); + IPN inetpton = (IPN)(void*)GetProcAddress (GetModuleHandle ("ws2_32.dll"), "InetPton"); + if (!inetpton) inetpton = inet_pton_xp; // use own implementation if not found - if(localAddress.is_v4()) + if (localAddress.is_v4()) { sockaddr_in inputAddress; - inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr)); + inetpton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr)); return GetMTUWindowsIpv4(inputAddress, fallback); } - else if(localAddress.is_v6()) + else if (localAddress.is_v6()) { sockaddr_in6 inputAddress; - inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr)); + inetpton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr)); return GetMTUWindowsIpv6(inputAddress, fallback); - } else { - LogPrint(eLogError, "NetIface: GetMTU(): address family is not supported"); + } + else + { + LogPrint(eLogError, "NetIface: GetMTU: Address family is not supported"); return fallback; } } #else // assume unix - int GetMTUUnix(const boost::asio::ip::address& localAddress, int fallback) + int GetMTUUnix (const boost::asio::ip::address& localAddress, int fallback) { ifaddrs* ifaddr, *ifa = nullptr; - if(getifaddrs(&ifaddr) == -1) + if (getifaddrs(&ifaddr) == -1) { LogPrint(eLogError, "NetIface: Can't call getifaddrs(): ", strerror(errno)); return fallback; @@ -235,34 +394,34 @@ namespace net int family = 0; // look for interface matching local address - for(ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) + for (ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) { - if(!ifa->ifa_addr) + if (!ifa->ifa_addr) continue; family = ifa->ifa_addr->sa_family; - if(family == AF_INET && localAddress.is_v4()) + if (family == AF_INET && localAddress.is_v4()) { sockaddr_in* sa = (sockaddr_in*) ifa->ifa_addr; - if(!memcmp(&sa->sin_addr, localAddress.to_v4().to_bytes().data(), 4)) + if (!memcmp(&sa->sin_addr, localAddress.to_v4().to_bytes().data(), 4)) break; // address matches } - else if(family == AF_INET6 && localAddress.is_v6()) + else if (family == AF_INET6 && localAddress.is_v6()) { sockaddr_in6* sa = (sockaddr_in6*) ifa->ifa_addr; - if(!memcmp(&sa->sin6_addr, localAddress.to_v6().to_bytes().data(), 16)) + if (!memcmp(&sa->sin6_addr, localAddress.to_v6().to_bytes().data(), 16)) break; // address matches } } int mtu = fallback; - if(ifa && family) + if (ifa && family) { // interface found? int fd = socket(family, SOCK_DGRAM, 0); - if(fd > 0) + if (fd > 0) { ifreq ifr; - strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ); // set interface for query - if(ioctl(fd, SIOCGIFMTU, &ifr) >= 0) + strncpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ-1); // set interface for query + if (ioctl(fd, SIOCGIFMTU, &ifr) >= 0) mtu = ifr.ifr_mtu; // MTU else LogPrint (eLogError, "NetIface: Failed to run ioctl: ", strerror(errno)); @@ -272,18 +431,18 @@ namespace net LogPrint(eLogError, "NetIface: Failed to create datagram socket"); } else - LogPrint(eLogWarning, "NetIface: interface for local address", localAddress.to_string(), " not found"); + LogPrint(eLogWarning, "NetIface: Interface for local address", localAddress.to_string(), " not found"); freeifaddrs(ifaddr); return mtu; } -#endif // WIN32 +#endif // _WIN32 - int GetMTU(const boost::asio::ip::address& localAddress) + int GetMTU (const boost::asio::ip::address& localAddress) { - const int fallback = 576; // fallback MTU + int fallback = localAddress.is_v6 () ? 1280 : 620; // fallback MTU -#ifdef WIN32 +#ifdef _WIN32 return GetMTUWindows(localAddress, fallback); #else return GetMTUUnix(localAddress, fallback); @@ -291,55 +450,251 @@ namespace net return fallback; } - const boost::asio::ip::address GetInterfaceAddress(const std::string & ifname, bool ipv6) + const boost::asio::ip::address GetInterfaceAddress (const std::string & ifname, bool ipv6) { -#ifdef WIN32 - LogPrint(eLogError, "NetIface: cannot get address by interface name, not implemented on WIN32"); - if(ipv6) - return boost::asio::ip::address::from_string("::1"); +#ifdef _WIN32 + LogPrint(eLogError, "NetIface: Cannot get address by interface name, not implemented on WIN32"); + if (ipv6) + return boost::asio::ip::make_address("::1"); else - return boost::asio::ip::address::from_string("127.0.0.1"); + return boost::asio::ip::make_address("127.0.0.1"); #else int af = (ipv6 ? AF_INET6 : AF_INET); - ifaddrs * addrs = nullptr; - if(getifaddrs(&addrs) == 0) + ifaddrs *addrs; + try { - // got ifaddrs - ifaddrs * cur = addrs; - while(cur) + if (!getifaddrs(&addrs)) { - std::string cur_ifname(cur->ifa_name); - if (cur_ifname == ifname && cur->ifa_addr && cur->ifa_addr->sa_family == af) + for (auto cur = addrs; cur; cur = cur->ifa_next) { - // match - char * addr = new char[INET6_ADDRSTRLEN]; - bzero(addr, INET6_ADDRSTRLEN); - if(af == AF_INET) - inet_ntop(af, &((sockaddr_in *)cur->ifa_addr)->sin_addr, addr, INET6_ADDRSTRLEN); - else - inet_ntop(af, &((sockaddr_in6 *)cur->ifa_addr)->sin6_addr, addr, INET6_ADDRSTRLEN); - freeifaddrs(addrs); - std::string cur_ifaddr(addr); - delete[] addr; - return boost::asio::ip::address::from_string(cur_ifaddr); + std::string cur_ifname(cur->ifa_name); + if (cur_ifname == ifname && cur->ifa_addr && cur->ifa_addr->sa_family == af) + { + // match + char addr[INET6_ADDRSTRLEN]; + memset (addr, 0, INET6_ADDRSTRLEN); + if (af == AF_INET) + inet_ntop(af, &((sockaddr_in *)cur->ifa_addr)->sin_addr, addr, INET6_ADDRSTRLEN); + else + inet_ntop(af, &((sockaddr_in6 *)cur->ifa_addr)->sin6_addr, addr, INET6_ADDRSTRLEN); + freeifaddrs(addrs); + std::string cur_ifaddr(addr); + return boost::asio::ip::make_address(cur_ifaddr); + } } - cur = cur->ifa_next; } } - if(addrs) freeifaddrs(addrs); + catch (std::exception& ex) + { + LogPrint(eLogError, "NetIface: Exception while searching address using ifaddr: ", ex.what()); + } + + if (addrs) freeifaddrs(addrs); std::string fallback; - if(ipv6) + if (ipv6) { fallback = "::1"; - LogPrint(eLogWarning, "NetIface: cannot find ipv6 address for interface ", ifname); + LogPrint(eLogWarning, "NetIface: Cannot find IPv6 address for interface ", ifname); } else { fallback = "127.0.0.1"; - LogPrint(eLogWarning, "NetIface: cannot find ipv4 address for interface ", ifname); + LogPrint(eLogWarning, "NetIface: Cannot find IPv4 address for interface ", ifname); } - return boost::asio::ip::address::from_string(fallback); - + return boost::asio::ip::make_address(fallback); #endif } -} + + int GetMaxMTU (const boost::asio::ip::address_v6& localAddress) + { + uint32_t prefix = bufbe32toh (localAddress.to_bytes ().data ()); + switch (prefix) + { + case 0x20010470: + case 0x260070ff: + // Hurricane Electric + return 1480; + break; + case 0x2a06a003: + case 0x2a06a004: + case 0x2a06a005: + // route48 + return 1420; + break; + default: ; + } + return 1500; + } + + static bool IsYggdrasilAddress (const uint8_t addr[16]) + { + return addr[0] == 0x02 || addr[0] == 0x03; + } + + bool IsYggdrasilAddress (const boost::asio::ip::address& addr) + { + if (!addr.is_v6 ()) return false; + return IsYggdrasilAddress (addr.to_v6 ().to_bytes ().data ()); + } + + bool IsPortInReservedRange (const uint16_t port) noexcept + { + // https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers (Feb. 3, 2023) + Tor browser (9150) + static const std::unordered_set reservedPorts{ + 9119,9150,9306,9312,9389,9418,9535,9536,9695, + 9800,9899,10000,10050,10051,10110,10212, + 10933,11001,11112,11235,11371,12222,12223, + 13075,13400,13720,13721,13724,13782,13783, + 13785,13786,15345,17224,17225,17500,18104, + 19788,19812,19813,19814,19999,20000,24465, + 24554,26000,27000,27001,27002,27003,27004, + 27005,27006,27007,27008,27009,28000}; + + return (reservedPorts.find(port) != reservedPorts.end()); + } + + boost::asio::ip::address_v6 GetYggdrasilAddress () + { +#if defined(_WIN32) + ULONG outBufLen = 0; + PIP_ADAPTER_ADDRESSES pAddresses = nullptr; + PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr; + PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr; + + if (GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen) + == ERROR_BUFFER_OVERFLOW) + { + FREE(pAddresses); + pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen); + } + + DWORD dwRetVal = GetAdaptersAddresses( + AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen + ); + + if (dwRetVal != NO_ERROR) + { + LogPrint(eLogError, "NetIface: GetYggdrasilAddress(): enclosed GetAdaptersAddresses() call has failed"); + FREE(pAddresses); + return boost::asio::ip::address_v6 (); + } + + pCurrAddresses = pAddresses; + while (pCurrAddresses) + { + pUnicast = pCurrAddresses->FirstUnicastAddress; + + while (pUnicast != nullptr) + { + LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr; + sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr; + if (IsYggdrasilAddress(localInterfaceAddress->sin6_addr.u.Byte)) { + boost::asio::ip::address_v6::bytes_type bytes; + memcpy (bytes.data (), &localInterfaceAddress->sin6_addr.u.Byte, 16); + FREE(pAddresses); + return boost::asio::ip::address_v6 (bytes); + } + pUnicast = pUnicast->Next; + } + pCurrAddresses = pCurrAddresses->Next; + } + LogPrint(eLogWarning, "NetIface: Interface with Yggdrasil network address not found"); + FREE(pAddresses); + return boost::asio::ip::address_v6 (); +#else + ifaddrs *addrs; + try + { + if (!getifaddrs(&addrs)) + { + for (auto cur = addrs; cur; cur = cur->ifa_next) + { + if (cur->ifa_addr && cur->ifa_addr->sa_family == AF_INET6) + { + sockaddr_in6* sa = (sockaddr_in6*)cur->ifa_addr; + if (IsYggdrasilAddress(sa->sin6_addr.s6_addr)) + { + boost::asio::ip::address_v6::bytes_type bytes; + memcpy (bytes.data (), &sa->sin6_addr, 16); + freeifaddrs(addrs); + return boost::asio::ip::address_v6 (bytes); + } + } + } + } + } + catch (std::exception& ex) + { + LogPrint(eLogError, "NetIface: Exception while searching Yggdrasill address using ifaddr: ", ex.what()); + } + LogPrint(eLogWarning, "NetIface: Interface with Yggdrasil network address not found"); + if (addrs) freeifaddrs(addrs); + return boost::asio::ip::address_v6 (); +#endif + } + + bool IsLocalAddress (const boost::asio::ip::address& addr) + { + auto mtu = // TODO: implement better +#ifdef _WIN32 + GetMTUWindows(addr, 0); +#else + GetMTUUnix(addr, 0); +#endif + return mtu > 0; + } + + bool IsInReservedRange (const boost::asio::ip::address& host) + { + // https://en.wikipedia.org/wiki/Reserved_IP_addresses + if (host.is_unspecified ()) return false; + if (host.is_v4()) + { + static const std::array, 14> reservedIPv4Ranges + { + address_pair_v4("0.0.0.0", "0.255.255.255"), + address_pair_v4("10.0.0.0", "10.255.255.255"), + address_pair_v4("100.64.0.0", "100.127.255.255"), + address_pair_v4("127.0.0.0", "127.255.255.255"), + address_pair_v4("169.254.0.0", "169.254.255.255"), + address_pair_v4("172.16.0.0", "172.31.255.255"), + address_pair_v4("192.0.0.0", "192.0.0.255"), + address_pair_v4("192.0.2.0", "192.0.2.255"), + address_pair_v4("192.88.99.0", "192.88.99.255"), + address_pair_v4("192.168.0.0", "192.168.255.255"), + address_pair_v4("198.18.0.0", "192.19.255.255"), + address_pair_v4("198.51.100.0", "198.51.100.255"), + address_pair_v4("203.0.113.0", "203.0.113.255"), + address_pair_v4("224.0.0.0", "255.255.255.255") + }; + + uint32_t ipv4_address = host.to_v4 ().to_uint (); + for (const auto& it : reservedIPv4Ranges) { + if (ipv4_address >= it.first && ipv4_address <= it.second) + return true; + } + } + if (host.is_v6()) + { + static const std::array, 7> reservedIPv6Ranges + { + address_pair_v6("64:ff9b::", "64:ff9b:ffff:ffff:ffff:ffff:ffff:ffff"), // NAT64 + address_pair_v6("2001:db8::", "2001:db8:ffff:ffff:ffff:ffff:ffff:ffff"), + address_pair_v6("fc00::", "fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"), + address_pair_v6("fe80::", "febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff"), + address_pair_v6("ff00::", "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"), + address_pair_v6("::", "::"), + address_pair_v6("::1", "::1") + }; + + boost::asio::ip::address_v6::bytes_type ipv6_address = host.to_v6 ().to_bytes (); + for (const auto& it : reservedIPv6Ranges) { + if (ipv6_address >= it.first && ipv6_address <= it.second) + return true; + } + if (IsYggdrasilAddress (ipv6_address.data ())) // yggdrasil? + return true; + } + return false; + } +} // net } // util } // i2p diff --git a/libi2pd/util.h b/libi2pd/util.h index 6da20ad6..7bd35e67 100644 --- a/libi2pd/util.h +++ b/libi2pd/util.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef UTIL_H #define UTIL_H @@ -5,6 +13,7 @@ #include #include #include +#include #include #include @@ -42,12 +51,13 @@ namespace util MemoryPool (): m_Head (nullptr) {} ~MemoryPool () { - while (m_Head) - { - auto tmp = m_Head; - m_Head = static_cast(*(void * *)m_Head); // next - delete tmp; - } + CleanUp (); + } + + void CleanUp () + { + CleanUp (m_Head); + m_Head = nullptr; } template @@ -84,13 +94,25 @@ namespace util std::bind (&MemoryPool::Release, this, std::placeholders::_1)); } + protected: + + void CleanUp (T * head) + { + while (head) + { + auto tmp = head; + head = static_cast(*(void * *)head); // next + ::operator delete ((void *)tmp); + } + } + protected: T * m_Head; }; template - class MemoryPoolMt: public MemoryPool + class MemoryPoolMt: private MemoryPool { public: @@ -109,6 +131,14 @@ namespace util this->Release (t); } + void ReleaseMt (T * * arr, size_t num) + { + if (!arr || !num) return; + std::lock_guard l(m_Mutex); + for (size_t i = 0; i < num; i++) + this->Release (arr[i]); + } + templateclass C, typename... R> void ReleaseMt(const C& c) { @@ -117,15 +147,94 @@ namespace util this->Release (it); } + template + std::shared_ptr AcquireSharedMt (TArgs&&... args) + { + return std::shared_ptr(AcquireMt (std::forward(args)...), + std::bind::*)(T *)> (&MemoryPoolMt::ReleaseMt, this, std::placeholders::_1)); + } + + void CleanUpMt () + { + T * head; + { + std::lock_guard l(m_Mutex); + head = this->m_Head; + this->m_Head = nullptr; + } + if (head) this->CleanUp (head); + } + private: std::mutex m_Mutex; }; + class RunnableService + { + protected: + + RunnableService (const std::string& name): m_Name (name), m_IsRunning (false) {} + virtual ~RunnableService () {} + + auto& GetIOService () { return m_Service; } + bool IsRunning () const { return m_IsRunning; }; + + void StartIOService (); + void StopIOService (); + + void SetName (std::string_view name); + + private: + + void Run (); + + private: + + std::string m_Name; + volatile bool m_IsRunning; + std::unique_ptr m_Thread; + boost::asio::io_context m_Service; + }; + + class RunnableServiceWithWork: public RunnableService + { + protected: + + RunnableServiceWithWork (const std::string& name): + RunnableService (name), m_Work (GetIOService ().get_executor ()) {} + + private: + + boost::asio::executor_work_guard m_Work; + }; + + void SetThreadName (const char *name); + + template + class SaveStateHelper + { + public: + + SaveStateHelper (T& orig): m_Original (orig), m_Copy (orig) {}; + ~SaveStateHelper () { m_Original = m_Copy; }; + + private: + + T& m_Original; + T m_Copy; + }; + namespace net { int GetMTU (const boost::asio::ip::address& localAddress); - const boost::asio::ip::address GetInterfaceAddress(const std::string & ifname, bool ipv6=false); + int GetMaxMTU (const boost::asio::ip::address_v6& localAddress); // check tunnel broker for ipv6 address + const boost::asio::ip::address GetInterfaceAddress (const std::string & ifname, bool ipv6=false); + boost::asio::ip::address_v6 GetYggdrasilAddress (); + bool IsLocalAddress (const boost::asio::ip::address& addr); + bool IsInReservedRange (const boost::asio::ip::address& host); + bool IsYggdrasilAddress (const boost::asio::ip::address& addr); + bool IsPortInReservedRange (const uint16_t port) noexcept; } } } diff --git a/libi2pd/version.h b/libi2pd/version.h index 4fdb5f27..1e63ae08 100644 --- a/libi2pd/version.h +++ b/libi2pd/version.h @@ -1,28 +1,41 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef _VERSION_H_ #define _VERSION_H_ #define CODENAME "Purple" +#define XSTRINGIZE(x) STRINGIZE(x) #define STRINGIZE(x) #x + #define MAKE_VERSION(a,b,c) STRINGIZE(a) "." STRINGIZE(b) "." STRINGIZE(c) +#define MAKE_VERSION_NUMBER(a,b,c) ((a*100+b)*100+c) #define I2PD_VERSION_MAJOR 2 -#define I2PD_VERSION_MINOR 25 +#define I2PD_VERSION_MINOR 56 #define I2PD_VERSION_MICRO 0 #define I2PD_VERSION_PATCH 0 -#define I2PD_VERSION MAKE_VERSION(I2PD_VERSION_MAJOR, I2PD_VERSION_MINOR, I2PD_VERSION_MICRO) +#ifdef GITVER + #define I2PD_VERSION XSTRINGIZE(GITVER) +#else + #define I2PD_VERSION MAKE_VERSION(I2PD_VERSION_MAJOR, I2PD_VERSION_MINOR, I2PD_VERSION_MICRO) +#endif + #define VERSION I2PD_VERSION -#ifdef MESHNET -#define I2PD_NET_ID 3 -#else #define I2PD_NET_ID 2 -#endif #define I2P_VERSION_MAJOR 0 #define I2P_VERSION_MINOR 9 -#define I2P_VERSION_MICRO 40 +#define I2P_VERSION_MICRO 65 #define I2P_VERSION_PATCH 0 #define I2P_VERSION MAKE_VERSION(I2P_VERSION_MAJOR, I2P_VERSION_MINOR, I2P_VERSION_MICRO) +#define I2P_VERSION_NUMBER MAKE_VERSION_NUMBER(I2P_VERSION_MAJOR, I2P_VERSION_MINOR, I2P_VERSION_MICRO) #endif diff --git a/libi2pd_client/AddressBook.cpp b/libi2pd_client/AddressBook.cpp index 75d95da1..8333e87d 100644 --- a/libi2pd_client/AddressBook.cpp +++ b/libi2pd_client/AddressBook.cpp @@ -1,15 +1,23 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include -#include +#include #include #include #include #include #include -#include #include "Base.h" #include "util.h" +#include "Timestamp.h" #include "Identity.h" #include "FS.h" #include "Log.h" @@ -19,6 +27,14 @@ #include "AddressBook.h" #include "Config.h" +#if STD_FILESYSTEM +#include +namespace fs_lib = std::filesystem; +#else +#include +namespace fs_lib = boost::filesystem; +#endif + namespace i2p { namespace client @@ -26,35 +42,40 @@ namespace client // TODO: this is actually proxy class class AddressBookFilesystemStorage: public AddressBookStorage { - private: - i2p::fs::HashedStorage storage; - std::string etagsPath, indexPath, localPath; - public: - AddressBookFilesystemStorage (): storage("addressbook", "b", "", "b32") + + AddressBookFilesystemStorage (): storage("addressbook", "b", "", "b32") { i2p::config::GetOption("persist.addressbook", m_IsPersist); + if (m_IsPersist) + i2p::config::GetOption("addressbook.hostsfile", m_HostsFile); } - std::shared_ptr GetAddress (const i2p::data::IdentHash& ident) const; - void AddAddress (std::shared_ptr address); - void RemoveAddress (const i2p::data::IdentHash& ident); + std::shared_ptr GetAddress (const i2p::data::IdentHash& ident) override; + void AddAddress (std::shared_ptr address) override; + void RemoveAddress (const i2p::data::IdentHash& ident) override; + void CleanUpCache () override; - bool Init (); - int Load (std::map > & addresses); - int LoadLocal (std::map >& addresses); - int Save (const std::map >& addresses); + bool Init () override; + int Load (Addresses& addresses) override; + int LoadLocal (Addresses& addresses) override; + int Save (const Addresses& addresses) override; - void SaveEtag (const i2p::data::IdentHash& subsciption, const std::string& etag, const std::string& lastModified); - bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified); - void ResetEtags (); - - private: - - int LoadFromFile (const std::string& filename, std::map >& addresses); // returns -1 if can't open file, otherwise number of records + void SaveEtag (const i2p::data::IdentHash& subsciption, const std::string& etag, const std::string& lastModified) override; + bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified) override; + void ResetEtags () override; + + private: + + int LoadFromFile (const std::string& filename, Addresses& addresses); // returns -1 if can't open file, otherwise number of records private: + i2p::fs::HashedStorage storage; + std::string etagsPath, indexPath, localPath; bool m_IsPersist; + std::string m_HostsFile; // file to dump hosts.txt, empty if not used + std::unordered_map, uint64_t> > m_FullAddressCache; // ident hash -> (full ident buffer, last access timestamp) + std::mutex m_FullAddressCacheMutex; }; bool AddressBookFilesystemStorage::Init() @@ -75,57 +96,92 @@ namespace client return false; } - std::shared_ptr AddressBookFilesystemStorage::GetAddress (const i2p::data::IdentHash& ident) const + std::shared_ptr AddressBookFilesystemStorage::GetAddress (const i2p::data::IdentHash& ident) { - if (!m_IsPersist) + auto ts = i2p::util::GetMonotonicSeconds (); + { + std::lock_guard l(m_FullAddressCacheMutex); + auto it = m_FullAddressCache.find (ident); + if (it != m_FullAddressCache.end ()) + { + it->second.second = ts; + return std::make_shared(it->second.first.data (), it->second.first.size ()); + } + } + + if (!m_IsPersist) { LogPrint(eLogDebug, "Addressbook: Persistence is disabled"); - return nullptr; + return nullptr; } std::string filename = storage.Path(ident.ToBase32()); std::ifstream f(filename, std::ifstream::binary); - if (!f.is_open ()) { + if (!f.is_open ()) + { LogPrint(eLogDebug, "Addressbook: Requested, but not found: ", filename); return nullptr; } f.seekg (0,std::ios::end); size_t len = f.tellg (); - if (len < i2p::data::DEFAULT_IDENTITY_SIZE) { + if (len < i2p::data::DEFAULT_IDENTITY_SIZE) + { LogPrint (eLogError, "Addressbook: File ", filename, " is too short: ", len); return nullptr; } f.seekg(0, std::ios::beg); - uint8_t * buf = new uint8_t[len]; - f.read((char *)buf, len); - auto address = std::make_shared(buf, len); - delete[] buf; - return address; + std::vector buf(len); + f.read((char *)buf.data (), len); + if (!f) + { + LogPrint (eLogError, "Addressbook: Couldn't read ", filename); + return nullptr; + } + { + std::lock_guard l(m_FullAddressCacheMutex); + m_FullAddressCache.try_emplace (ident, buf, ts); + } + return std::make_shared(buf.data (), len); } void AddressBookFilesystemStorage::AddAddress (std::shared_ptr address) { - if (!m_IsPersist) return; - std::string path = storage.Path( address->GetIdentHash().ToBase32() ); - std::ofstream f (path, std::ofstream::binary | std::ofstream::out); - if (!f.is_open ()) { - LogPrint (eLogError, "Addressbook: can't open file ", path); - return; - } + if (!address) return; size_t len = address->GetFullLen (); - uint8_t * buf = new uint8_t[len]; - address->ToBuffer (buf, len); - f.write ((char *)buf, len); - delete[] buf; + std::vector buf; + if (!len) return; // invalid address + { + std::lock_guard l(m_FullAddressCacheMutex); + auto [it, inserted] = m_FullAddressCache.try_emplace (address->GetIdentHash(), len, i2p::util::GetMonotonicSeconds ()); + if (inserted) + address->ToBuffer (it->second.first.data (), len); + if (m_IsPersist) + buf = it->second.first; + } + if (m_IsPersist && !buf.empty ()) + { + std::string path = storage.Path(address->GetIdentHash().ToBase32()); + std::ofstream f (path, std::ofstream::binary | std::ofstream::out); + if (!f.is_open ()) + { + LogPrint (eLogError, "Addressbook: Can't open file ", path); + return; + } + f.write ((const char *)buf.data (), len); + } } void AddressBookFilesystemStorage::RemoveAddress (const i2p::data::IdentHash& ident) { - if (!m_IsPersist) return; + { + std::lock_guard l(m_FullAddressCacheMutex); + m_FullAddressCache.erase (ident); + } + if (!m_IsPersist) return; storage.Remove( ident.ToBase32() ); } - int AddressBookFilesystemStorage::LoadFromFile (const std::string& filename, std::map >& addresses) + int AddressBookFilesystemStorage::LoadFromFile (const std::string& filename, Addresses& addresses) { int num = 0; std::ifstream f (filename, std::ifstream::in); // in text mode @@ -151,7 +207,7 @@ namespace client return num; } - int AddressBookFilesystemStorage::Load (std::map >& addresses) + int AddressBookFilesystemStorage::Load (Addresses& addresses) { int num = LoadFromFile (indexPath, addresses); if (num < 0) @@ -159,13 +215,13 @@ namespace client LogPrint(eLogWarning, "Addressbook: Can't open ", indexPath); return 0; } - LogPrint(eLogInfo, "Addressbook: using index file ", indexPath); + LogPrint(eLogInfo, "Addressbook: Using index file ", indexPath); LogPrint (eLogInfo, "Addressbook: ", num, " addresses loaded from storage"); return num; } - int AddressBookFilesystemStorage::LoadLocal (std::map >& addresses) + int AddressBookFilesystemStorage::LoadLocal (Addresses& addresses) { int num = LoadFromFile (localPath, addresses); if (num < 0) return 0; @@ -173,32 +229,61 @@ namespace client return num; } - int AddressBookFilesystemStorage::Save (const std::map >& addresses) + int AddressBookFilesystemStorage::Save (const Addresses& addresses) { - if (addresses.empty()) { - LogPrint(eLogWarning, "Addressbook: not saving empty addressbook"); + if (addresses.empty()) + { + LogPrint(eLogWarning, "Addressbook: Not saving empty addressbook"); return 0; } int num = 0; - std::ofstream f (indexPath, std::ofstream::out); // in text mode - - if (!f.is_open ()) { - LogPrint (eLogWarning, "Addressbook: Can't open ", indexPath); - return 0; - } - - for (const auto& it: addresses) - { - f << it.first << ","; - if (it.second->IsIdentHash ()) - f << it.second->identHash.ToBase32 (); + { + // save index file + std::ofstream f (indexPath, std::ofstream::out); // in text mode + if (f.is_open ()) + { + for (const auto& it: addresses) + { + if (it.second->IsValid ()) + { + f << it.first << ","; + if (it.second->IsIdentHash ()) + f << it.second->identHash.ToBase32 (); + else + f << it.second->blindedPublicKey->ToB33 (); + f << std::endl; + num++; + } + else + LogPrint (eLogWarning, "Addressbook: Invalid address ", it.first); + } + LogPrint (eLogInfo, "Addressbook: ", num, " addresses saved"); + } else - f << it.second->blindedPublicKey->ToB33 (); - f << std::endl; - num++; + LogPrint (eLogWarning, "Addressbook: Can't open ", indexPath); } - LogPrint (eLogInfo, "Addressbook: ", num, " addresses saved"); + if (!m_HostsFile.empty ()) + { + // dump full hosts.txt + std::ofstream f (m_HostsFile, std::ofstream::out); // in text mode + if (f.is_open ()) + { + for (const auto& it: addresses) + { + std::shared_ptr addr; + if (it.second->IsIdentHash ()) + { + addr = GetAddress (it.second->identHash); + if (addr) + f << it.first << "=" << addr->ToBase64 () << std::endl; + } + } + } + else + LogPrint (eLogWarning, "Addressbook: Can't open ", m_HostsFile); + } + return num; } @@ -226,39 +311,55 @@ namespace client void AddressBookFilesystemStorage::ResetEtags () { - LogPrint (eLogError, "Addressbook: resetting eTags"); - for (boost::filesystem::directory_iterator it (etagsPath); it != boost::filesystem::directory_iterator (); ++it) + LogPrint (eLogError, "Addressbook: Resetting eTags"); + for (fs_lib::directory_iterator it (etagsPath); it != fs_lib::directory_iterator (); ++it) { - if (!boost::filesystem::is_regular_file (it->status ())) + if (!fs_lib::is_regular_file (it->status ())) continue; - boost::filesystem::remove (it->path ()); + fs_lib::remove (it->path ()); } } + void AddressBookFilesystemStorage::CleanUpCache () + { + auto ts = i2p::util::GetMonotonicSeconds (); + std::lock_guard l(m_FullAddressCacheMutex); + for (auto it = m_FullAddressCache.begin (); it != m_FullAddressCache.end ();) + { + if (ts > it->second.second + ADDRESS_CACHE_EXPIRATION_TIMEOUT) + it = m_FullAddressCache.erase (it); + else + it++; + } + } + //--------------------------------------------------------------------- - Address::Address (const std::string& b32) + Address::Address (std::string_view b32): + addressType (eAddressInvalid) { if (b32.length () <= B33_ADDRESS_THRESHOLD) { - addressType = eAddressIndentHash; - identHash.FromBase32 (b32); + if (identHash.FromBase32 (b32) > 0) + addressType = eAddressIndentHash; } else { - addressType = eAddressBlindedPublicKey; blindedPublicKey = std::make_shared(b32); + if (blindedPublicKey->IsValid ()) + addressType = eAddressBlindedPublicKey; } - } + } Address::Address (const i2p::data::IdentHash& hash) { addressType = eAddressIndentHash; - identHash = hash; + identHash = hash; } - AddressBook::AddressBook (): m_Storage(nullptr), m_IsLoaded (false), m_IsDownloading (false), - m_NumRetries (0), m_DefaultSubscription (nullptr), m_SubscriptionsUpdateTimer (nullptr) + AddressBook::AddressBook (): m_Storage(nullptr), m_IsLoaded (false), + m_NumRetries (0), m_DefaultSubscription (nullptr), m_SubscriptionsUpdateTimer (nullptr), + m_IsEnabled (true) { } @@ -269,12 +370,17 @@ namespace client void AddressBook::Start () { - if (!m_Storage) - m_Storage = new AddressBookFilesystemStorage; - m_Storage->Init(); - LoadHosts (); /* try storage, then hosts.txt, then download */ - StartSubscriptions (); - StartLookups (); + i2p::config::GetOption("addressbook.enabled", m_IsEnabled); + if (m_IsEnabled) + { + if (!m_Storage) + m_Storage = new AddressBookFilesystemStorage; + m_Storage->Init(); + LoadHosts (); /* try storage, then hosts.txt, then download */ + StartSubscriptions (); + StartLookups (); + ScheduleCacheUpdate (); + } } void AddressBook::StartResolvers () @@ -288,23 +394,36 @@ namespace client StopSubscriptions (); if (m_SubscriptionsUpdateTimer) { - delete m_SubscriptionsUpdateTimer; + m_SubscriptionsUpdateTimer->cancel (); m_SubscriptionsUpdateTimer = nullptr; } - if (m_IsDownloading) + if (m_AddressCacheUpdateTimer) { - LogPrint (eLogInfo, "Addressbook: subscriptions are downloading, abort"); - for (int i = 0; i < 30; i++) - { - if (!m_IsDownloading) + m_AddressCacheUpdateTimer->cancel (); + m_AddressCacheUpdateTimer = nullptr; + } + bool isDownloading = m_Downloading.valid (); + if (isDownloading) + { + if (m_Downloading.wait_for(std::chrono::seconds(0)) == std::future_status::ready) + isDownloading = false; + else + { + LogPrint (eLogInfo, "Addressbook: Subscriptions are downloading, abort"); + for (int i = 0; i < 30; i++) { - LogPrint (eLogInfo, "Addressbook: subscriptions download complete"); - break; + if (m_Downloading.wait_for(std::chrono::seconds(1)) == std::future_status::ready) // wait for 1 seconds + { + isDownloading = false; + LogPrint (eLogInfo, "Addressbook: Subscriptions download complete"); + break; + } } - std::this_thread::sleep_for (std::chrono::seconds (1)); // wait for 1 seconds - } - LogPrint (eLogError, "Addressbook: subscription download timeout"); - m_IsDownloading = false; + } + if (!isDownloading) + m_Downloading.get (); + else + LogPrint (eLogError, "Addressbook: Subscription download timeout"); } if (m_Storage) { @@ -316,22 +435,27 @@ namespace client m_Subscriptions.clear (); } - std::shared_ptr AddressBook::GetAddress (const std::string& address) + std::shared_ptr AddressBook::GetAddress (std::string_view address) { auto pos = address.find(".b32.i2p"); if (pos != std::string::npos) - return std::make_shared(address.substr (0, pos)); - else { - pos = address.find (".i2p"); - if (pos != std::string::npos) - { - auto addr = FindAddress (address); - if (!addr) - LookupAddress (address); // TODO: - return addr; - } - } + auto addr = std::make_shared(address.substr (0, pos)); + return addr->IsValid () ? addr : nullptr; + } + else +#if __cplusplus >= 202002L // C++20 + if (address.ends_with (".i2p")) +#else + if (address.find (".i2p") != std::string::npos) +#endif + { + if (!m_IsEnabled) return nullptr; + auto addr = FindAddress (address); + if (!addr) + LookupAddress (address); // TODO: + return addr; + } // if not .b32 we assume full base64 address i2p::data::IdentityEx dest; if (!dest.FromBase64 (address)) @@ -339,7 +463,7 @@ namespace client return std::make_shared(dest.GetIdentHash ()); } - std::shared_ptr AddressBook::FindAddress (const std::string& address) + std::shared_ptr AddressBook::FindAddress (std::string_view address) { auto it = m_Addresses.find (address); if (it != m_Addresses.end ()) @@ -347,43 +471,67 @@ namespace client return nullptr; } + bool AddressBook::RecordExists (const std::string& address, const std::string& jump) + { + auto addr = FindAddress(address); + if (!addr) + return false; + + auto pos = jump.find(".b32.i2p"); + if (pos != std::string::npos) + { + i2p::data::IdentHash identHash; + if (identHash.FromBase32(jump.substr (0, pos)) && identHash == addr->identHash) + return true; + } + else + { + i2p::data::IdentityEx ident; + if (ident.FromBase64 (jump) && ident.GetIdentHash () == addr->identHash) + return true; + } + + return false; + } + void AddressBook::InsertAddress (const std::string& address, const std::string& jump) { auto pos = jump.find(".b32.i2p"); if (pos != std::string::npos) { m_Addresses[address] = std::make_shared
(jump.substr (0, pos)); - LogPrint (eLogInfo, "Addressbook: added ", address," -> ", jump); - } + LogPrint (eLogInfo, "Addressbook: Added ", address," -> ", jump); + } else - { - // assume base64 + { + // assume base64 auto ident = std::make_shared(); if (ident->FromBase64 (jump)) { - m_Storage->AddAddress (ident); + if (m_Storage) m_Storage->AddAddress (ident); m_Addresses[address] = std::make_shared
(ident->GetIdentHash ()); - LogPrint (eLogInfo, "Addressbook: added ", address," -> ", ToAddress(ident->GetIdentHash ())); + LogPrint (eLogInfo, "Addressbook: Added ", address," -> ", ToAddress(ident->GetIdentHash ())); } else - LogPrint (eLogError, "Addressbook: malformed address ", jump); + LogPrint (eLogError, "Addressbook: Malformed address ", jump); } } void AddressBook::InsertFullAddress (std::shared_ptr address) { - m_Storage->AddAddress (address); + if (m_Storage) m_Storage->AddAddress (address); } std::shared_ptr AddressBook::GetFullAddress (const std::string& address) { auto addr = GetAddress (address); if (!addr || !addr->IsIdentHash ()) return nullptr; - return m_Storage->GetAddress (addr->identHash); + return m_Storage ? m_Storage->GetAddress (addr->identHash) : nullptr; } void AddressBook::LoadHosts () { + if (!m_Storage) return; if (m_Storage->Load (m_Addresses) > 0) { m_IsLoaded = true; @@ -419,16 +567,36 @@ namespace client if (pos != std::string::npos) { - std::string name = s.substr(0, pos++); - std::string addr = s.substr(pos); + std::string_view name = std::string_view(s).substr(0, pos++); + std::string_view addr = std::string_view(s).substr(pos); - size_t pos = s.find('#'); - if (pos != std::string::npos) - addr = addr.substr(pos); // remove comments + size_t pos = addr.find('#'); + if (pos != addr.npos) + addr = addr.substr(0, pos); // remove comments +#if __cplusplus >= 202002L // C++20 + if (name.ends_with (".b32.i2p")) +#else + if (name.find(".b32.i2p") != name.npos) +#endif + { + LogPrint (eLogError, "Addressbook: Skipped adding of b32 address: ", name); + continue; + } + +#if __cplusplus >= 202002L // C++20 + if (!name.ends_with (".i2p")) +#else + if (name.find(".i2p") == name.npos) +#endif + { + LogPrint (eLogError, "Addressbook: Malformed domain: ", name); + continue; + } auto ident = std::make_shared (); - if (!ident->FromBase64(addr)) { - LogPrint (eLogError, "Addressbook: malformed address ", addr, " for ", name); + if (!ident->FromBase64(addr)) + { + LogPrint (eLogError, "Addressbook: Malformed address ", addr, " for ", name); incomplete = f.eof (); continue; } @@ -436,20 +604,24 @@ namespace client auto it = m_Addresses.find (name); if (it != m_Addresses.end ()) // already exists ? { - if (it->second->IsIdentHash () && it->second->identHash != ident->GetIdentHash ()) // address changed? + if (it->second->IsIdentHash () && it->second->identHash != ident->GetIdentHash () && // address changed? + ident->GetSigningKeyType () != i2p::data::SIGNING_KEY_TYPE_DSA_SHA1) // don't replace by DSA { it->second->identHash = ident->GetIdentHash (); - m_Storage->AddAddress (ident); - LogPrint (eLogInfo, "Addressbook: updated host: ", name); + if (m_Storage) + { + m_Storage->AddAddress (ident); + m_Storage->RemoveAddress (it->second->identHash); + } + LogPrint (eLogInfo, "Addressbook: Updated host: ", name); } } else { - //m_Addresses.emplace (name, std::make_shared
(ident->GetIdentHash ())); - m_Addresses[name] = std::make_shared
(ident->GetIdentHash ()); // for gcc 4.7 - m_Storage->AddAddress (ident); + m_Addresses.emplace (name, std::make_shared
(ident->GetIdentHash ())); + if (m_Storage) m_Storage->AddAddress (ident); if (is_update) - LogPrint (eLogInfo, "Addressbook: added new host: ", name); + LogPrint (eLogInfo, "Addressbook: Added new host: ", name); } } else @@ -459,7 +631,7 @@ namespace client if (numAddresses > 0) { if (!incomplete) m_IsLoaded = true; - m_Storage->Save (m_Addresses); + if (m_Storage) m_Storage->Save (m_Addresses); } return !incomplete; } @@ -475,33 +647,34 @@ namespace client while (!f.eof ()) { getline(f, s); - if (!s.length()) continue; // skip empty line + if (s.empty () || s[0] == '#') continue; // skip empty line or comment m_Subscriptions.push_back (std::make_shared (*this, s)); } LogPrint (eLogInfo, "Addressbook: ", m_Subscriptions.size (), " subscriptions urls loaded"); LogPrint (eLogWarning, "Addressbook: subscriptions.txt usage is deprecated, use config file instead"); } - else if (!i2p::config::IsDefault("addressbook.subscriptions")) - { - // using config file items - std::string subscriptionURLs; i2p::config::GetOption("addressbook.subscriptions", subscriptionURLs); - std::vector subsList; - boost::split(subsList, subscriptionURLs, boost::is_any_of(","), boost::token_compress_on); + else + { + LogPrint (eLogInfo, "Addressbook: Loading subscriptions from config"); + // using config file items + std::string subscriptionURLs; i2p::config::GetOption("addressbook.subscriptions", subscriptionURLs); + std::vector subsList; + boost::split(subsList, subscriptionURLs, boost::is_any_of(","), boost::token_compress_on); - for (size_t i = 0; i < subsList.size (); i++) - { - m_Subscriptions.push_back (std::make_shared (*this, subsList[i])); - } - LogPrint (eLogInfo, "Addressbook: ", m_Subscriptions.size (), " subscriptions urls loaded"); - } + for (const auto& s: subsList) + if (!s.empty ()) + m_Subscriptions.push_back (std::make_shared (*this, s)); + LogPrint (eLogInfo, "Addressbook: ", m_Subscriptions.size (), " subscriptions urls loaded"); + } } else - LogPrint (eLogError, "Addressbook: subscriptions already loaded"); + LogPrint (eLogError, "Addressbook: Subscriptions already loaded"); } void AddressBook::LoadLocal () { - std::map> localAddresses; + if (!m_Storage) return; + AddressBookStorage::Addresses localAddresses; m_Storage->LoadLocal (localAddresses); for (const auto& it: localAddresses) { @@ -510,7 +683,7 @@ namespace client if (dot != std::string::npos) { auto domain = it.first.substr (dot + 1); - auto it1 = m_Addresses.find (domain); // find domain in our addressbook + auto it1 = m_Addresses.find (domain); // find domain in our addressbook if (it1 != m_Addresses.end () && it1->second->IsIdentHash ()) { auto dest = context.FindLocalDestination (it1->second->identHash); @@ -544,7 +717,6 @@ namespace client void AddressBook::DownloadComplete (bool success, const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified) { - m_IsDownloading = false; m_NumRetries++; int nextUpdateTimeout = m_NumRetries*CONTINIOUS_SUBSCRIPTION_RETRY_TIMEOUT; if (m_NumRetries > CONTINIOUS_SUBSCRIPTION_MAX_NUM_RETRIES || nextUpdateTimeout > CONTINIOUS_SUBSCRIPTION_UPDATE_TIMEOUT) @@ -575,13 +747,13 @@ namespace client auto dest = i2p::client::context.GetSharedLocalDestination (); if (dest) { - m_SubscriptionsUpdateTimer = new boost::asio::deadline_timer (dest->GetService ()); + m_SubscriptionsUpdateTimer = std::make_unique(dest->GetService ()); m_SubscriptionsUpdateTimer->expires_from_now (boost::posix_time::minutes(INITIAL_SUBSCRIPTION_UPDATE_TIMEOUT)); m_SubscriptionsUpdateTimer->async_wait (std::bind (&AddressBook::HandleSubscriptionsUpdateTimer, this, std::placeholders::_1)); } else - LogPrint (eLogError, "Addressbook: can't start subscriptions: missing shared local destination"); + LogPrint (eLogCritical, "Addressbook: Can't start subscriptions: missing shared local destination"); } void AddressBook::StopSubscriptions () @@ -596,29 +768,33 @@ namespace client { auto dest = i2p::client::context.GetSharedLocalDestination (); if (!dest) { - LogPrint(eLogWarning, "Addressbook: missing local destination, skip subscription update"); + LogPrint(eLogWarning, "Addressbook: Missing local destination, skip subscription update"); return; } - if (!m_IsDownloading && dest->IsReady ()) + bool isDownloading = m_Downloading.valid (); + if (isDownloading && m_Downloading.wait_for(std::chrono::seconds(0)) == std::future_status::ready) // still active? + { + m_Downloading.get (); + isDownloading = false; + } + if (!isDownloading && dest->IsReady ()) { if (!m_IsLoaded) { // download it from default subscription - LogPrint (eLogInfo, "Addressbook: trying to download it from default subscription."); - std::string defaultSubURL; i2p::config::GetOption("addressbook.defaulturl", defaultSubURL); + LogPrint (eLogInfo, "Addressbook: Trying to download it from default subscription."); + std::string defaultSubURL; i2p::config::GetOption("addressbook.defaulturl", defaultSubURL); if (!m_DefaultSubscription) m_DefaultSubscription = std::make_shared(*this, defaultSubURL); - m_IsDownloading = true; - std::thread load_hosts(std::bind (&AddressBookSubscription::CheckUpdates, m_DefaultSubscription)); - load_hosts.detach(); // TODO: use join + m_Downloading = std::async (std::launch::async, + std::bind (&AddressBookSubscription::CheckUpdates, m_DefaultSubscription)); } else if (!m_Subscriptions.empty ()) { // pick random subscription auto ind = rand () % m_Subscriptions.size(); - m_IsDownloading = true; - std::thread load_hosts(std::bind (&AddressBookSubscription::CheckUpdates, m_Subscriptions[ind])); - load_hosts.detach(); // TODO: use join + m_Downloading = std::async (std::launch::async, + std::bind (&AddressBookSubscription::CheckUpdates, m_Subscriptions[ind])); } } else @@ -655,7 +831,7 @@ namespace client } } - void AddressBook::LookupAddress (const std::string& address) + void AddressBook::LookupAddress (std::string_view address) { std::shared_ptr addr; auto dot = address.find ('.'); @@ -685,7 +861,7 @@ namespace client memset (buf, 0, 4); htobe32buf (buf + 4, nonce); buf[8] = address.length (); - memcpy (buf + 9, address.c_str (), address.length ()); + memcpy (buf + 9, address.data (), address.length ()); datagram->SendDatagramTo (buf, len, addr->identHash, ADDRESS_RESPONSE_DATAGRAM_PORT, ADDRESS_RESOLVER_DATAGRAM_PORT); delete[] buf; } @@ -722,13 +898,38 @@ namespace client } } - AddressBookSubscription::AddressBookSubscription (AddressBook& book, const std::string& link): + void AddressBook::ScheduleCacheUpdate () + { + if (!m_AddressCacheUpdateTimer) + { + auto dest = i2p::client::context.GetSharedLocalDestination (); + if(dest) + m_AddressCacheUpdateTimer = std::make_unique(dest->GetService ()); + } + if (m_AddressCacheUpdateTimer) + { + m_AddressCacheUpdateTimer->expires_from_now (boost::posix_time::seconds(ADDRESS_CACHE_UPDATE_INTERVAL )); + m_AddressCacheUpdateTimer->async_wait ( + [this](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + if (m_Storage) m_Storage->CleanUpCache (); + ScheduleCacheUpdate (); + } + }); + } + } + + AddressBookSubscription::AddressBookSubscription (AddressBook& book, std::string_view link): m_Book (book), m_Link (link) { } void AddressBookSubscription::CheckUpdates () { + i2p::util::SetThreadName("Addressbook"); + bool result = MakeRequest (); m_Book.DownloadComplete (result, m_Ident, m_Etag, m_LastModified); } @@ -738,91 +939,70 @@ namespace client i2p::http::URL url; // must be run in separate thread LogPrint (eLogInfo, "Addressbook: Downloading hosts database from ", m_Link); - if (!url.parse(m_Link)) + if (!url.parse(m_Link)) { - LogPrint(eLogError, "Addressbook: failed to parse url: ", m_Link); + LogPrint(eLogError, "Addressbook: Failed to parse url: ", m_Link); return false; } auto addr = m_Book.GetAddress (url.host); - if (!addr || !addr->IsIdentHash ()) + if (!addr || !addr->IsIdentHash ()) { LogPrint (eLogError, "Addressbook: Can't resolve ", url.host); return false; } else m_Ident = addr->identHash; - /* this code block still needs some love */ - std::condition_variable newDataReceived; - std::mutex newDataReceivedMutex; - auto leaseSet = i2p::client::context.GetSharedLocalDestination ()->FindLeaseSet (m_Ident); - if (!leaseSet) + // save url parts for later use + std::string dest_host = url.host; + int dest_port = url.port ? url.port : 80; + // try to create stream to addressbook site + auto stream = i2p::client::context.GetSharedLocalDestination ()->CreateStream (m_Ident, dest_port); + if (!stream) { - std::unique_lock l(newDataReceivedMutex); - i2p::client::context.GetSharedLocalDestination ()->RequestDestination (m_Ident, - [&newDataReceived, &leaseSet, &newDataReceivedMutex](std::shared_ptr ls) - { - leaseSet = ls; - std::unique_lock l1(newDataReceivedMutex); - newDataReceived.notify_all (); - }); - if (newDataReceived.wait_for (l, std::chrono::seconds (SUBSCRIPTION_REQUEST_TIMEOUT)) == std::cv_status::timeout) - { - LogPrint (eLogError, "Addressbook: Subscription LeaseSet request timeout expired"); - i2p::client::context.GetSharedLocalDestination ()->CancelDestinationRequest (m_Ident, false); // don't notify, because we know it already - return false; - } - } - if (!leaseSet) { - /* still no leaseset found */ LogPrint (eLogError, "Addressbook: LeaseSet for address ", url.host, " not found"); return false; } - if (m_Etag.empty() && m_LastModified.empty()) { + if (m_Etag.empty() && m_LastModified.empty()) + { m_Book.GetEtag (m_Ident, m_Etag, m_LastModified); - LogPrint (eLogDebug, "Addressbook: loaded for ", url.host, ": ETag: ", m_Etag, ", Last-Modified: ", m_LastModified); + LogPrint (eLogDebug, "Addressbook: Loaded for ", url.host, ": ETag: ", m_Etag, ", Last-Modified: ", m_LastModified); } - /* save url parts for later use */ - std::string dest_host = url.host; - int dest_port = url.port ? url.port : 80; - /* create http request & send it */ + // create http request & send it i2p::http::HTTPReq req; req.AddHeader("Host", dest_host); req.AddHeader("User-Agent", "Wget/1.11.4"); + req.AddHeader("Accept-Encoding", "gzip"); req.AddHeader("X-Accept-Encoding", "x-i2p-gzip;q=1.0, identity;q=0.5, deflate;q=0, gzip;q=0, *;q=0"); req.AddHeader("Connection", "close"); if (!m_Etag.empty()) req.AddHeader("If-None-Match", m_Etag); if (!m_LastModified.empty()) req.AddHeader("If-Modified-Since", m_LastModified); - /* convert url to relative */ - url.schema = ""; - url.host = ""; - req.uri = url.to_string(); - auto stream = i2p::client::context.GetSharedLocalDestination ()->CreateStream (leaseSet, dest_port); + // convert url to relative + url.schema = ""; + url.host = ""; + req.uri = url.to_string(); + req.version = "HTTP/1.1"; std::string request = req.to_string(); stream->Send ((const uint8_t *) request.data(), request.length()); - /* read response */ + // read response std::string response; uint8_t recv_buf[4096]; bool end = false; int numAttempts = 0; while (!end) { - stream->AsyncReceive (boost::asio::buffer (recv_buf, 4096), - [&](const boost::system::error_code& ecode, std::size_t bytes_transferred) - { - if (bytes_transferred) - response.append ((char *)recv_buf, bytes_transferred); - if (ecode == boost::asio::error::timed_out || !stream->IsOpen ()) - end = true; - newDataReceived.notify_all (); - }, - SUBSCRIPTION_REQUEST_TIMEOUT); - std::unique_lock l(newDataReceivedMutex); - // wait 1 more second - if (newDataReceived.wait_for (l, std::chrono::seconds (SUBSCRIPTION_REQUEST_TIMEOUT + 1)) == std::cv_status::timeout) + size_t received = stream->Receive (recv_buf, 4096, SUBSCRIPTION_REQUEST_TIMEOUT); + if (received) { - LogPrint (eLogError, "Addressbook: subscriptions request timeout expired"); + response.append ((char *)recv_buf, received); + if (!stream->IsOpen ()) end = true; + } + else if (!stream->IsOpen ()) + end = true; + else + { + LogPrint (eLogError, "Addressbook: Subscriptions request timeout expired"); numAttempts++; if (numAttempts > 5) end = true; } @@ -830,46 +1010,46 @@ namespace client // process remaining buffer while (size_t len = stream->ReadSome (recv_buf, sizeof(recv_buf))) response.append ((char *)recv_buf, len); - /* parse response */ + // parse response i2p::http::HTTPRes res; int res_head_len = res.parse(response); if (res_head_len < 0) { - LogPrint(eLogError, "Addressbook: can't parse http response from ", dest_host); + LogPrint(eLogError, "Addressbook: Can't parse http response from ", dest_host); return false; } if (res_head_len == 0) { - LogPrint(eLogError, "Addressbook: incomplete http response from ", dest_host, ", interrupted by timeout"); + LogPrint(eLogError, "Addressbook: Incomplete http response from ", dest_host, ", interrupted by timeout"); return false; } - /* assert: res_head_len > 0 */ + // assert: res_head_len > 0 response.erase(0, res_head_len); if (res.code == 304) { - LogPrint (eLogInfo, "Addressbook: no updates from ", dest_host, ", code 304"); + LogPrint (eLogInfo, "Addressbook: No updates from ", dest_host, ", code 304"); return false; } if (res.code != 200) { - LogPrint (eLogWarning, "Adressbook: can't get updates from ", dest_host, ", response code ", res.code); + LogPrint (eLogWarning, "Adressbook: Can't get updates from ", dest_host, ", response code ", res.code); return false; } int len = res.content_length(); if (response.empty()) { - LogPrint(eLogError, "Addressbook: empty response from ", dest_host, ", expected ", len, " bytes"); + LogPrint(eLogError, "Addressbook: Empty response from ", dest_host, ", expected ", len, " bytes"); return false; } if (!res.is_gzipped () && len > 0 && len != (int) response.length()) { - LogPrint(eLogError, "Addressbook: response size mismatch, expected: ", len, ", got: ", response.length(), "bytes"); + LogPrint(eLogError, "Addressbook: Response size mismatch, expected: ", len, ", got: ", response.length(), "bytes"); return false; } - /* assert: res.code == 200 */ + // assert: res.code == 200 auto it = res.headers.find("ETag"); if (it != res.headers.end()) m_Etag = it->second; - it = res.headers.find("If-Modified-Since"); + it = res.headers.find("Last-Modified"); if (it != res.headers.end()) m_LastModified = it->second; if (res.is_chunked()) { @@ -877,20 +1057,20 @@ namespace client i2p::http::MergeChunkedResponse (in, out); response = out.str(); } - else if (res.is_gzipped()) + if (res.is_gzipped()) { std::stringstream out; i2p::data::GzipInflator inflator; inflator.Inflate ((const uint8_t *) response.data(), response.length(), out); if (out.fail()) { - LogPrint(eLogError, "Addressbook: can't gunzip http response"); + LogPrint(eLogError, "Addressbook: Can't gunzip http response"); return false; } response = out.str(); } std::stringstream ss(response); - LogPrint (eLogInfo, "Addressbook: got update from ", dest_host); + LogPrint (eLogInfo, "Addressbook: Got update from ", dest_host); m_Book.LoadHostsFromStream (ss, true); return true; } @@ -915,7 +1095,7 @@ namespace client { auto datagram = m_LocalDestination->GetDatagramDestination (); if (datagram) - datagram->ResetReceiver (ADDRESS_RESOLVER_DATAGRAM_PORT); + datagram->ResetReceiver (ADDRESS_RESOLVER_DATAGRAM_PORT); } } diff --git a/libi2pd_client/AddressBook.h b/libi2pd_client/AddressBook.h index 47ad9993..8b32aa93 100644 --- a/libi2pd_client/AddressBook.h +++ b/libi2pd_client/AddressBook.h @@ -1,12 +1,22 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef ADDRESS_BOOK_H__ #define ADDRESS_BOOK_H__ #include #include +#include #include #include #include #include +#include #include #include #include "Base.h" @@ -24,7 +34,9 @@ namespace client const int CONTINIOUS_SUBSCRIPTION_UPDATE_TIMEOUT = 720; // in minutes (12 hours) const int CONTINIOUS_SUBSCRIPTION_RETRY_TIMEOUT = 5; // in minutes const int CONTINIOUS_SUBSCRIPTION_MAX_NUM_RETRIES = 10; // then update timeout - const int SUBSCRIPTION_REQUEST_TIMEOUT = 120; //in second + const int SUBSCRIPTION_REQUEST_TIMEOUT = 120; //in seconds + const int ADDRESS_CACHE_EXPIRATION_TIMEOUT = 710; // in seconds + const int ADDRESS_CACHE_UPDATE_INTERVAL = 76; // in seconds const uint16_t ADDRESS_RESOLVER_DATAGRAM_PORT = 53; const uint16_t ADDRESS_RESPONSE_DATAGRAM_PORT = 54; @@ -33,13 +45,14 @@ namespace client struct Address { - enum { eAddressIndentHash, eAddressBlindedPublicKey } addressType; + enum { eAddressIndentHash, eAddressBlindedPublicKey, eAddressInvalid } addressType; i2p::data::IdentHash identHash; std::shared_ptr blindedPublicKey; - Address (const std::string& b32); - Address (const i2p::data::IdentHash& hash); + Address (std::string_view b32); + Address (const i2p::data::IdentHash& hash); bool IsIdentHash () const { return addressType == eAddressIndentHash; }; + bool IsValid () const { return addressType != eAddressInvalid; }; }; inline std::string GetB32Address(const i2p::data::IdentHash& ident) { return ident.ToBase32().append(".b32.i2p"); } @@ -48,15 +61,18 @@ namespace client { public: + typedef std::map, std::less<> > Addresses; + virtual ~AddressBookStorage () {}; - virtual std::shared_ptr GetAddress (const i2p::data::IdentHash& ident) const = 0; + virtual std::shared_ptr GetAddress (const i2p::data::IdentHash& ident) = 0; virtual void AddAddress (std::shared_ptr address) = 0; virtual void RemoveAddress (const i2p::data::IdentHash& ident) = 0; + virtual void CleanUpCache () = 0; virtual bool Init () = 0; - virtual int Load (std::map >& addresses) = 0; - virtual int LoadLocal (std::map >& addresses) = 0; - virtual int Save (const std::map >& addresses) = 0; + virtual int Load (Addresses& addresses) = 0; + virtual int LoadLocal (Addresses& addresses) = 0; + virtual int Save (const Addresses& addresses) = 0; virtual void SaveEtag (const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified) = 0; virtual bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified) = 0; @@ -68,19 +84,21 @@ namespace client class AddressBook { public: - + AddressBook (); ~AddressBook (); void Start (); void StartResolvers (); void Stop (); - std::shared_ptr GetAddress (const std::string& address); + std::shared_ptr GetAddress (std::string_view address); std::shared_ptr GetFullAddress (const std::string& address); - std::shared_ptr FindAddress (const std::string& address); - void LookupAddress (const std::string& address); + std::shared_ptr FindAddress (std::string_view address); + void LookupAddress (std::string_view address); void InsertAddress (const std::string& address, const std::string& jump); // for jump links void InsertFullAddress (std::shared_ptr address); + bool RecordExists (const std::string& address, const std::string& jump); + bool LoadHostsFromStream (std::istream& f, bool is_update); void DownloadComplete (bool success, const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified); //This method returns the ".b32.i2p" address @@ -88,7 +106,8 @@ namespace client std::string ToAddress(std::shared_ptr ident) { return ToAddress(ident->GetIdentHash ()); } bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified); - + bool IsEnabled () const { return m_IsEnabled; } + private: void StartSubscriptions (); @@ -104,26 +123,30 @@ namespace client void StopLookups (); void HandleLookupResponse (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void ScheduleCacheUpdate (); + private: std::mutex m_AddressBookMutex; - std::map > m_Addresses; + AddressBookStorage::Addresses m_Addresses; std::map > m_Resolvers; // local destination->resolver std::mutex m_LookupsMutex; std::map m_Lookups; // nonce -> address AddressBookStorage * m_Storage; - volatile bool m_IsLoaded, m_IsDownloading; + volatile bool m_IsLoaded; + std::future m_Downloading; int m_NumRetries; std::vector > m_Subscriptions; std::shared_ptr m_DefaultSubscription; // in case if we don't know any addresses yet - boost::asio::deadline_timer * m_SubscriptionsUpdateTimer; + std::unique_ptr m_SubscriptionsUpdateTimer, m_AddressCacheUpdateTimer; + bool m_IsEnabled; }; class AddressBookSubscription { public: - AddressBookSubscription (AddressBook& book, const std::string& link); + AddressBookSubscription (AddressBook& book, std::string_view link); void CheckUpdates (); private: @@ -153,11 +176,9 @@ namespace client private: std::shared_ptr m_LocalDestination; - std::map m_LocalAddresses; + std::map m_LocalAddresses; }; } } #endif - - diff --git a/libi2pd_client/BOB.cpp b/libi2pd_client/BOB.cpp index 94d74726..8d94e94b 100644 --- a/libi2pd_client/BOB.cpp +++ b/libi2pd_client/BOB.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include "Log.h" #include "ClientContext.h" @@ -8,6 +16,24 @@ namespace i2p { namespace client { + void BOBI2PTunnelIncomingConnection::Established () + { + if (m_IsQuiet) + StreamReceive (); + else + { + // send destination first like received from I2P + std::string dest = GetStream ()->GetRemoteIdentity ()->ToBase64 (); + dest += "\n"; + if (dest.size() <= I2P_TUNNEL_CONNECTION_BUFFER_SIZE) + memcpy (GetStreamBuffer (), dest.c_str (), dest.size ()); + else + memset (GetStreamBuffer (), 0, I2P_TUNNEL_CONNECTION_BUFFER_SIZE); + HandleStreamReceive (boost::system::error_code (), dest.size ()); + } + Receive (); + } + BOBI2PInboundTunnel::BOBI2PInboundTunnel (const boost::asio::ip::tcp::endpoint& ep, std::shared_ptr localDestination): BOBI2PTunnel (localDestination), m_Acceptor (localDestination->GetService (), ep) { @@ -50,17 +76,17 @@ namespace client void BOBI2PInboundTunnel::ReceiveAddress (std::shared_ptr receiver) { receiver->socket->async_read_some (boost::asio::buffer( - receiver->buffer + receiver->bufferOffset, - BOB_COMMAND_BUFFER_SIZE - receiver->bufferOffset), + receiver->buffer + receiver->bufferOffset, + BOB_COMMAND_BUFFER_SIZE - receiver->bufferOffset), std::bind(&BOBI2PInboundTunnel::HandleReceivedAddress, this, - std::placeholders::_1, std::placeholders::_2, receiver)); + std::placeholders::_1, std::placeholders::_2, receiver)); } void BOBI2PInboundTunnel::HandleReceivedAddress (const boost::system::error_code& ecode, std::size_t bytes_transferred, std::shared_ptr receiver) { if (ecode) - LogPrint (eLogError, "BOB: inbound tunnel read error: ", ecode.message ()); + LogPrint (eLogError, "BOB: Inbound tunnel read error: ", ecode.message ()); else { receiver->bufferOffset += bytes_transferred; @@ -75,7 +101,7 @@ namespace client auto addr = context.GetAddressBook ().GetAddress (receiver->buffer); if (!addr) { - LogPrint (eLogError, "BOB: address ", receiver->buffer, " not found"); + LogPrint (eLogError, "BOB: Address ", receiver->buffer, " not found"); return; } if (addr->IsIdentHash ()) @@ -98,7 +124,7 @@ namespace client if (receiver->bufferOffset < BOB_COMMAND_BUFFER_SIZE) ReceiveAddress (receiver); else - LogPrint (eLogError, "BOB: missing inbound address"); + LogPrint (eLogError, "BOB: Missing inbound address"); } } } @@ -119,9 +145,9 @@ namespace client connection->I2PConnect (receiver->data, receiver->dataLen); } - BOBI2POutboundTunnel::BOBI2POutboundTunnel (const std::string& address, int port, + BOBI2POutboundTunnel::BOBI2POutboundTunnel (const std::string& outhost, uint16_t port, std::shared_ptr localDestination, bool quiet): BOBI2PTunnel (localDestination), - m_Endpoint (boost::asio::ip::address::from_string (address), port), m_IsQuiet (quiet) + m_Endpoint (boost::asio::ip::make_address (outhost), port), m_IsQuiet (quiet) { } @@ -148,15 +174,19 @@ namespace client { if (stream) { - auto conn = std::make_shared (this, stream, std::make_shared (GetService ()), m_Endpoint, m_IsQuiet); + auto conn = std::make_shared (this, stream, m_Endpoint, m_IsQuiet); AddHandler (conn); conn->Connect (); } } - BOBDestination::BOBDestination (std::shared_ptr localDestination): + BOBDestination::BOBDestination (std::shared_ptr localDestination, + const std::string &nickname, const std::string &inhost, const std::string &outhost, + const uint16_t inport, const uint16_t outport, const bool quiet): m_LocalDestination (localDestination), - m_OutboundTunnel (nullptr), m_InboundTunnel (nullptr) + m_OutboundTunnel (nullptr), m_InboundTunnel (nullptr), + m_Nickname(nickname), m_InHost(inhost), m_OutHost(outhost), + m_InPort(inport), m_OutPort(outport), m_Quiet(quiet), m_IsRunning(false) { } @@ -171,6 +201,7 @@ namespace client { if (m_OutboundTunnel) m_OutboundTunnel->Start (); if (m_InboundTunnel) m_InboundTunnel->Start (); + m_IsRunning = true; } void BOBDestination::Stop () @@ -181,6 +212,7 @@ namespace client void BOBDestination::StopTunnels () { + m_IsRunning = false; if (m_OutboundTunnel) { m_OutboundTunnel->Stop (); @@ -195,15 +227,18 @@ namespace client } } - void BOBDestination::CreateInboundTunnel (int port, const std::string& address) + void BOBDestination::CreateInboundTunnel (uint16_t port, const std::string& inhost) { if (!m_InboundTunnel) { + // update inport and inhost (user can stop tunnel and change) + m_InPort = port; + m_InHost = inhost; boost::asio::ip::tcp::endpoint ep(boost::asio::ip::tcp::v4(), port); - if (!address.empty ()) + if (!inhost.empty ()) { boost::system::error_code ec; - auto addr = boost::asio::ip::address::from_string (address, ec); + auto addr = boost::asio::ip::make_address (inhost, ec); if (!ec) ep.address (addr); else @@ -213,15 +248,21 @@ namespace client } } - void BOBDestination::CreateOutboundTunnel (const std::string& address, int port, bool quiet) + void BOBDestination::CreateOutboundTunnel (const std::string& outhost, uint16_t port, bool quiet) { if (!m_OutboundTunnel) - m_OutboundTunnel = new BOBI2POutboundTunnel (address, port, m_LocalDestination, quiet); + { + // update outport and outhost (user can stop tunnel and change) + m_OutPort = port; + m_OutHost = outhost; + m_OutboundTunnel = new BOBI2POutboundTunnel (outhost, port, m_LocalDestination, quiet); + } } BOBCommandSession::BOBCommandSession (BOBCommandChannel& owner): m_Owner (owner), m_Socket (m_Owner.GetService ()), - m_ReceiveBufferOffset (0), m_IsOpen (true), m_IsQuiet (false), m_IsActive (false), + m_ReceiveBuffer(BOB_COMMAND_BUFFER_SIZE + 1), m_SendBuffer(BOB_COMMAND_BUFFER_SIZE + 1), + m_IsOpen (true), m_IsQuiet (false), m_IsActive (false), m_InPort (0), m_OutPort (0), m_CurrentDestination (nullptr) { } @@ -238,65 +279,48 @@ namespace client void BOBCommandSession::Receive () { - m_Socket.async_read_some (boost::asio::buffer(m_ReceiveBuffer + m_ReceiveBufferOffset, BOB_COMMAND_BUFFER_SIZE - m_ReceiveBufferOffset), - std::bind(&BOBCommandSession::HandleReceived, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); + boost::asio::async_read_until(m_Socket, m_ReceiveBuffer, '\n', + std::bind(&BOBCommandSession::HandleReceivedLine, shared_from_this(), + std::placeholders::_1, std::placeholders::_2)); } - void BOBCommandSession::HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) + void BOBCommandSession::HandleReceivedLine(const boost::system::error_code& ecode, std::size_t bytes_transferred) { - if (ecode) + if(ecode) { - LogPrint (eLogError, "BOB: command channel read error: ", ecode.message ()); + LogPrint (eLogError, "BOB: Command channel read error: ", ecode.message()); if (ecode != boost::asio::error::operation_aborted) Terminate (); } else { - size_t size = m_ReceiveBufferOffset + bytes_transferred; - m_ReceiveBuffer[size] = 0; - char * eol = strchr (m_ReceiveBuffer, '\n'); - if (eol) - { - *eol = 0; - char * operand = strchr (m_ReceiveBuffer, ' '); - if (operand) - { - *operand = 0; - operand++; - } - else - operand = eol; - // process command - auto& handlers = m_Owner.GetCommandHandlers (); - auto it = handlers.find (m_ReceiveBuffer); - if (it != handlers.end ()) - (this->*(it->second))(operand, eol - operand); - else - { - LogPrint (eLogError, "BOB: unknown command ", m_ReceiveBuffer); - SendReplyError ("unknown command"); - } + std::string line; - m_ReceiveBufferOffset = size - (eol - m_ReceiveBuffer) - 1; - memmove (m_ReceiveBuffer, eol + 1, m_ReceiveBufferOffset); + std::istream is(&m_ReceiveBuffer); + std::getline(is, line); + + std::string command, operand; + std::istringstream iss(line); + iss >> command >> operand; + + // process command + auto& handlers = m_Owner.GetCommandHandlers(); + auto it = handlers.find(command); + if(it != handlers.end()) + { + (this->*(it->second))(operand.c_str(), operand.length()); } else { - if (size < BOB_COMMAND_BUFFER_SIZE) - m_ReceiveBufferOffset = size; - else - { - LogPrint (eLogError, "BOB: Malformed input of the command channel"); - Terminate (); - } + LogPrint (eLogError, "BOB: Unknown command ", command.c_str()); + SendReplyError ("unknown command"); } } } - void BOBCommandSession::Send (size_t len) + void BOBCommandSession::Send () { - boost::asio::async_write (m_Socket, boost::asio::buffer (m_SendBuffer, len), + boost::asio::async_write (m_Socket, m_SendBuffer, boost::asio::transfer_all (), std::bind(&BOBCommandSession::HandleSent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -305,8 +329,8 @@ namespace client void BOBCommandSession::HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) - { - LogPrint (eLogError, "BOB: command channel send error: ", ecode.message ()); + { + LogPrint (eLogError, "BOB: Command channel send error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate (); } @@ -321,39 +345,66 @@ namespace client void BOBCommandSession::SendReplyOK (const char * msg) { -#ifdef _MSC_VER - size_t len = sprintf_s (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_REPLY_OK, msg); -#else - size_t len = snprintf (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_REPLY_OK, msg); -#endif - Send (len); + std::ostream os(&m_SendBuffer); + os << "OK"; + if(msg) + { + os << " " << msg; + } + os << std::endl; + Send (); } void BOBCommandSession::SendReplyError (const char * msg) { -#ifdef _MSC_VER - size_t len = sprintf_s (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_REPLY_ERROR, msg); -#else - size_t len = snprintf (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_REPLY_ERROR, msg); -#endif - Send (len); + std::ostream os(&m_SendBuffer); + os << "ERROR " << msg << std::endl; + Send (); } void BOBCommandSession::SendVersion () { - size_t len = strlen (BOB_VERSION); - memcpy (m_SendBuffer, BOB_VERSION, len); - Send (len); + std::ostream os(&m_SendBuffer); + os << "BOB 00.00.10" << std::endl; + SendReplyOK(); } - void BOBCommandSession::SendData (const char * nickname) + void BOBCommandSession::SendRaw (const char * data) { -#ifdef _MSC_VER - size_t len = sprintf_s (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_DATA, nickname); -#else - size_t len = snprintf (m_SendBuffer, BOB_COMMAND_BUFFER_SIZE, BOB_DATA, nickname); -#endif - Send (len); + std::ostream os(&m_SendBuffer); + os << data << std::endl; + } + + void BOBCommandSession::BuildStatusLine(bool currentTunnel, std::shared_ptr dest, std::string &out) + { + // helper lambdas + const auto issetStr = [](const std::string &str) { return str.empty() ? "not_set" : str; }; // for inhost, outhost + const auto issetNum = [&issetStr](const int p) { return issetStr(p == 0 ? "" : std::to_string(p)); }; // for inport, outport + const auto destExists = [](const BOBDestination * const dest) { return dest != nullptr; }; + const auto destReady = [](const BOBDestination * const dest) { return dest && dest->IsRunning(); }; + const auto bool_str = [](const bool v) { return v ? "true" : "false"; }; // bool -> str + + // tunnel info + const std::string nickname = currentTunnel ? m_Nickname : dest->GetNickname(); + const bool quiet = currentTunnel ? m_IsQuiet : dest->GetQuiet(); + const std::string inhost = issetStr(currentTunnel ? m_InHost : dest->GetInHost()); + const std::string outhost = issetStr(currentTunnel ? m_OutHost : dest->GetOutHost()); + const std::string inport = issetNum(currentTunnel ? m_InPort : dest->GetInPort()); + const std::string outport = issetNum(currentTunnel ? m_OutPort : dest->GetOutPort()); + const bool keys = destExists(dest.get ()); // key must exist when destination is created + const bool starting = destExists(dest.get ()) && !destReady(dest.get ()); + const bool running = destExists(dest.get ()) && destReady(dest.get ()); + const bool stopping = false; + + // build line + std::stringstream ss; + ss << "DATA " + << "NICKNAME: " << nickname << " " << "STARTING: " << bool_str(starting) << " " + << "RUNNING: " << bool_str(running) << " " << "STOPPING: " << bool_str(stopping) << " " + << "KEYS: " << bool_str(keys) << " " << "QUIET: " << bool_str(quiet) << " " + << "INPORT: " << inport << " " << "INHOST: " << inhost << " " + << "OUTPORT: " << outport << " " << "OUTHOST: " << outhost; + out = ss.str(); } void BOBCommandSession::ZapCommandHandler (const char * operand, size_t len) @@ -377,15 +428,50 @@ namespace client SendReplyError ("tunnel is active"); return; } + if (!m_Keys.GetPublic ()) // keys are set ? + { + SendReplyError("Keys must be set."); + return; + } + if (m_InPort == 0 + && m_OutHost.empty() && m_OutPort == 0) + { + SendReplyError("(inhost):inport or outhost:outport must be set."); + return; + } + if(!m_InHost.empty()) + { + // TODO: FIXME: temporary validation, until hostname support is added + boost::system::error_code ec; + boost::asio::ip::make_address(m_InHost, ec); + if (ec) + { + SendReplyError("inhost must be a valid IPv4 address."); + return; + } + } + if(!m_OutHost.empty()) + { + // TODO: FIXME: temporary validation, until hostname support is added + boost::system::error_code ec; + boost::asio::ip::make_address(m_OutHost, ec); + if (ec) + { + SendReplyError("outhost must be a IPv4 address."); + return; + } + } + if (!m_CurrentDestination) { - m_CurrentDestination = new BOBDestination (i2p::client::context.CreateNewLocalDestination (m_Keys, true, &m_Options)); + m_CurrentDestination = std::make_shared (i2p::client::context.CreateNewLocalDestination (m_Keys, true, &m_Options), // deleted in clear command + m_Nickname, m_InHost, m_OutHost, m_InPort, m_OutPort, m_IsQuiet); m_Owner.AddDestination (m_Nickname, m_CurrentDestination); } if (m_InPort) - m_CurrentDestination->CreateInboundTunnel (m_InPort, m_Address); - if (m_OutPort && !m_Address.empty ()) - m_CurrentDestination->CreateOutboundTunnel (m_Address, m_OutPort, m_IsQuiet); + m_CurrentDestination->CreateInboundTunnel (m_InPort, m_InHost); + if (m_OutPort && !m_OutHost.empty ()) + m_CurrentDestination->CreateOutboundTunnel (m_OutHost, m_OutPort, m_IsQuiet); m_CurrentDestination->Start (); SendReplyOK ("Tunnel starting"); m_IsActive = true; @@ -413,26 +499,43 @@ namespace client void BOBCommandSession::SetNickCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: setnick ", operand); - m_Nickname = operand; - std::string msg ("Nickname set to "); - msg += m_Nickname; - SendReplyOK (msg.c_str ()); + if(*operand) + { + auto dest = m_Owner.FindDestination (operand); + if (!dest) + { + m_Nickname = operand; + std::string msg ("Nickname set to "); + msg += m_Nickname; + SendReplyOK (msg.c_str ()); + } + else + SendReplyError ("tunnel is active"); + } + else + SendReplyError ("no nickname has been set"); } void BOBCommandSession::GetNickCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: getnick ", operand); - m_CurrentDestination = m_Owner.FindDestination (operand); - if (m_CurrentDestination) + if(*operand) { - m_Keys = m_CurrentDestination->GetKeys (); - m_Nickname = operand; - } - if (m_Nickname == operand) - { - std::string msg ("Nickname set to "); - msg += m_Nickname; - SendReplyOK (msg.c_str ()); + m_CurrentDestination = m_Owner.FindDestination (operand); + if (m_CurrentDestination) + { + m_Keys = m_CurrentDestination->GetKeys (); + m_IsActive = m_CurrentDestination->IsRunning (); + m_Nickname = operand; + } + if (m_Nickname == operand) + { + std::string msg ("Nickname set to "); + msg += m_Nickname; + SendReplyOK (msg.c_str ()); + } + else + SendReplyError ("no nickname has been set"); } else SendReplyError ("no nickname has been set"); @@ -457,19 +560,19 @@ namespace client } catch (std::invalid_argument& ex) { - LogPrint (eLogWarning, "BOB: newkeys ", ex.what ()); + LogPrint (eLogWarning, "BOB: Error on newkeys: ", ex.what ()); } } - m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType); + m_Keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType, true); SendReplyOK (m_Keys.GetPublic ()->ToBase64 ().c_str ()); } void BOBCommandSession::SetkeysCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: setkeys ", operand); - if (m_Keys.FromBase64 (operand)) + if (*operand && m_Keys.FromBase64 (operand)) SendReplyOK (m_Keys.GetPublic ()->ToBase64 ().c_str ()); else SendReplyError ("invalid keys"); @@ -496,35 +599,61 @@ namespace client void BOBCommandSession::OuthostCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: outhost ", operand); - m_Address = operand; - SendReplyOK ("outhost set"); + if (*operand) + { + m_OutHost = operand; + SendReplyOK ("outhost set"); + } + else + SendReplyError ("empty outhost"); } void BOBCommandSession::OutportCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: outport ", operand); - m_OutPort = std::stoi(operand); - if (m_OutPort >= 0) - SendReplyOK ("outbound port set"); + if (*operand) + { + int port = std::stoi(operand); + if (port >= 0 && port < 65536) + { + m_OutPort = port; + SendReplyOK ("outbound port set"); + } + else + SendReplyError ("port out of range"); + } else - SendReplyError ("port out of range"); + SendReplyError ("empty outport"); } void BOBCommandSession::InhostCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: inhost ", operand); - m_Address = operand; - SendReplyOK ("inhost set"); + if (*operand) + { + m_InHost = operand; + SendReplyOK ("inhost set"); + } + else + SendReplyError ("empty inhost"); } void BOBCommandSession::InportCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: inport ", operand); - m_InPort = std::stoi(operand); - if (m_InPort >= 0) - SendReplyOK ("inbound port set"); + if (*operand) + { + int port = std::stoi(operand); + if (port >= 0 && port < 65536) + { + m_InPort = port; + SendReplyOK ("inbound port set"); + } + else + SendReplyError ("port out of range"); + } else - SendReplyError ("port out of range"); + SendReplyError ("empty inport"); } void BOBCommandSession::QuietCommandHandler (const char * operand, size_t len) @@ -547,37 +676,68 @@ namespace client void BOBCommandSession::LookupCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: lookup ", operand); - auto addr = context.GetAddressBook ().GetAddress (operand); - if (!addr) + if (*operand) { - SendReplyError ("Address Not found"); - return; - } - auto localDestination = m_CurrentDestination ? m_CurrentDestination->GetLocalDestination () : i2p::client::context.GetSharedLocalDestination (); - if (addr->IsIdentHash ()) - { - // we might have leaseset already - auto leaseSet = localDestination->FindLeaseSet (addr->identHash); - if (leaseSet) - { - SendReplyOK (leaseSet->GetIdentity ()->ToBase64 ().c_str ()); + auto addr = context.GetAddressBook ().GetAddress (operand); + if (!addr) + { + SendReplyError ("Address Not found"); return; } - } - // trying to request - auto s = shared_from_this (); - auto requstCallback = - [s](std::shared_ptr ls) + auto localDestination = (m_CurrentDestination && m_CurrentDestination->IsRunning ()) ? + m_CurrentDestination->GetLocalDestination () : i2p::client::context.GetSharedLocalDestination (); + if (!localDestination) + { + SendReplyError ("No local destination"); + return; + } + if (addr->IsIdentHash ()) + { + // we might have leaseset already + auto leaseSet = localDestination->FindLeaseSet (addr->identHash); + if (leaseSet) + { + SendReplyOK (leaseSet->GetIdentity ()->ToBase64 ().c_str ()); + return; + } + } + // trying to request + auto s = shared_from_this (); + auto requstCallback = [s](std::shared_ptr ls) { if (ls) s->SendReplyOK (ls->GetIdentity ()->ToBase64 ().c_str ()); else s->SendReplyError ("LeaseSet Not found"); }; - if (addr->IsIdentHash ()) - localDestination->RequestDestination (addr->identHash, requstCallback); + if (addr->IsIdentHash ()) + localDestination->RequestDestination (addr->identHash, requstCallback); + else + localDestination->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, requstCallback); + } else - localDestination->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, requstCallback); + SendReplyError ("empty lookup address"); + } + + void BOBCommandSession::LookupLocalCommandHandler (const char * operand, size_t len) + { + LogPrint (eLogDebug, "BOB: lookup local ", operand); + if (*operand) + { + auto addr = context.GetAddressBook ().GetAddress (operand); + if (!addr) + { + SendReplyError ("Address Not found"); + return; + } + auto ls = i2p::data::netdb.FindLeaseSet (addr->identHash); + if (ls) + SendReplyOK (ls->GetIdentity ()->ToBase64 ().c_str ()); + else + SendReplyError ("Local LeaseSet Not found"); + } + else + SendReplyError ("empty lookup address"); } void BOBCommandSession::ClearCommandHandler (const char * operand, size_t len) @@ -591,9 +751,23 @@ namespace client void BOBCommandSession::ListCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: list"); + std::string statusLine; + bool sentCurrent = false; const auto& destinations = m_Owner.GetDestinations (); for (const auto& it: destinations) - SendData (it.first.c_str ()); + { + BuildStatusLine(false, it.second, statusLine); + SendRaw(statusLine.c_str()); + if(m_Nickname.compare(it.second->GetNickname()) == 0) + sentCurrent = true; + } + if(!sentCurrent && !m_Nickname.empty()) + { + // add the current tunnel to the list. + // this is for the incomplete tunnel which has not been started yet. + BuildStatusLine(true, m_CurrentDestination, statusLine); + SendRaw(statusLine.c_str()); + } SendReplyOK ("Listing done"); } @@ -609,7 +783,7 @@ namespace client msg += operand; *(const_cast(value)) = '='; msg += " set to "; - msg += value; + msg += value + 1; SendReplyOK (msg.c_str ()); } else @@ -619,39 +793,60 @@ namespace client void BOBCommandSession::StatusCommandHandler (const char * operand, size_t len) { LogPrint (eLogDebug, "BOB: status ", operand); - if (m_Nickname == operand) + const std::string name = operand; + std::string statusLine; + + // always prefer destination + auto dest = m_Owner.FindDestination(name); + if(dest) { - std::stringstream s; - s << "DATA"; s << " NICKNAME: "; s << m_Nickname; - if (m_CurrentDestination) - { - if (m_CurrentDestination->GetLocalDestination ()->IsReady ()) - s << " STARTING: false RUNNING: true STOPPING: false"; - else - s << " STARTING: true RUNNING: false STOPPING: false"; - } - else - s << " STARTING: false RUNNING: false STOPPING: false"; - s << " KEYS: true"; s << " QUIET: "; s << (m_IsQuiet ? "true":"false"); - if (m_InPort) - { - s << " INPORT: " << m_InPort; - s << " INHOST: " << (m_Address.length () > 0 ? m_Address : "127.0.0.1"); - } - if (m_OutPort) - { - s << " OUTPORT: " << m_OutPort; - s << " OUTHOST: " << (m_Address.length () > 0 ? m_Address : "127.0.0.1"); - } - SendReplyOK (s.str().c_str()); + // tunnel destination exists + BuildStatusLine(false, dest, statusLine); + SendReplyOK(statusLine.c_str()); } else - SendReplyError ("no nickname has been set"); + { + if(m_Nickname == name && !name.empty()) + { + // tunnel is incomplete / has not been started yet + BuildStatusLine(true, nullptr, statusLine); + SendReplyOK(statusLine.c_str()); + } + else + { + SendReplyError("no nickname has been set"); + } + } + } + void BOBCommandSession::HelpCommandHandler (const char * operand, size_t len) + { + auto helpStrings = m_Owner.GetHelpStrings(); + if(!*operand) + { + std::stringstream ss; + ss << "COMMANDS:"; + for (auto const& x : helpStrings) + { + ss << " " << x.first; + } + const std::string &str = ss.str(); + SendReplyOK(str.c_str()); + } + else + { + auto it = helpStrings.find(operand); + if (it != helpStrings.end ()) + { + SendReplyOK(it->second.c_str()); + return; + } + SendReplyError("No such command"); + } } - BOBCommandChannel::BOBCommandChannel (const std::string& address, int port): - m_IsRunning (false), m_Thread (nullptr), - m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)) + BOBCommandChannel::BOBCommandChannel (const std::string& address, uint16_t port): + RunnableService ("BOB"), + m_Acceptor (GetIOService (), boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(address), port)) { // command -> handler m_CommandHandlers[BOB_COMMAND_ZAP] = &BOBCommandSession::ZapCommandHandler; @@ -670,59 +865,59 @@ namespace client m_CommandHandlers[BOB_COMMAND_INPORT] = &BOBCommandSession::InportCommandHandler; m_CommandHandlers[BOB_COMMAND_QUIET] = &BOBCommandSession::QuietCommandHandler; m_CommandHandlers[BOB_COMMAND_LOOKUP] = &BOBCommandSession::LookupCommandHandler; + m_CommandHandlers[BOB_COMMAND_LOOKUP_LOCAL] = &BOBCommandSession::LookupLocalCommandHandler; m_CommandHandlers[BOB_COMMAND_CLEAR] = &BOBCommandSession::ClearCommandHandler; m_CommandHandlers[BOB_COMMAND_LIST] = &BOBCommandSession::ListCommandHandler; m_CommandHandlers[BOB_COMMAND_OPTION] = &BOBCommandSession::OptionCommandHandler; m_CommandHandlers[BOB_COMMAND_STATUS] = &BOBCommandSession::StatusCommandHandler; + m_CommandHandlers[BOB_COMMAND_HELP] = &BOBCommandSession::HelpCommandHandler; + // command -> help string + m_HelpStrings[BOB_COMMAND_ZAP] = BOB_HELP_ZAP; + m_HelpStrings[BOB_COMMAND_QUIT] = BOB_HELP_QUIT; + m_HelpStrings[BOB_COMMAND_START] = BOB_HELP_START; + m_HelpStrings[BOB_COMMAND_STOP] = BOB_HELP_STOP; + m_HelpStrings[BOB_COMMAND_SETNICK] = BOB_HELP_SETNICK; + m_HelpStrings[BOB_COMMAND_GETNICK] = BOB_HELP_GETNICK; + m_HelpStrings[BOB_COMMAND_NEWKEYS] = BOB_HELP_NEWKEYS; + m_HelpStrings[BOB_COMMAND_GETKEYS] = BOB_HELP_GETKEYS; + m_HelpStrings[BOB_COMMAND_SETKEYS] = BOB_HELP_SETKEYS; + m_HelpStrings[BOB_COMMAND_GETDEST] = BOB_HELP_GETDEST; + m_HelpStrings[BOB_COMMAND_OUTHOST] = BOB_HELP_OUTHOST; + m_HelpStrings[BOB_COMMAND_OUTPORT] = BOB_HELP_OUTPORT; + m_HelpStrings[BOB_COMMAND_INHOST] = BOB_HELP_INHOST; + m_HelpStrings[BOB_COMMAND_INPORT] = BOB_HELP_INPORT; + m_HelpStrings[BOB_COMMAND_QUIET] = BOB_HELP_QUIET; + m_HelpStrings[BOB_COMMAND_LOOKUP] = BOB_HELP_LOOKUP; + m_HelpStrings[BOB_COMMAND_CLEAR] = BOB_HELP_CLEAR; + m_HelpStrings[BOB_COMMAND_LIST] = BOB_HELP_LIST; + m_HelpStrings[BOB_COMMAND_OPTION] = BOB_HELP_OPTION; + m_HelpStrings[BOB_COMMAND_STATUS] = BOB_HELP_STATUS; + m_HelpStrings[BOB_COMMAND_HELP] = BOB_HELP_HELP; } BOBCommandChannel::~BOBCommandChannel () { - Stop (); - for (const auto& it: m_Destinations) - delete it.second; + if (IsRunning ()) + Stop (); } void BOBCommandChannel::Start () { Accept (); - m_IsRunning = true; - m_Thread = new std::thread (std::bind (&BOBCommandChannel::Run, this)); + StartIOService (); } void BOBCommandChannel::Stop () { - m_IsRunning = false; for (auto& it: m_Destinations) it.second->Stop (); m_Acceptor.cancel (); - m_Service.stop (); - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } + StopIOService (); } - void BOBCommandChannel::Run () + void BOBCommandChannel::AddDestination (const std::string& name, std::shared_ptr dest) { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "BOB: runtime exception: ", ex.what ()); - } - } - } - - void BOBCommandChannel::AddDestination (const std::string& name, BOBDestination * dest) - { - m_Destinations[name] = dest; + m_Destinations.emplace (name, dest); } void BOBCommandChannel::DeleteDestination (const std::string& name) @@ -731,12 +926,11 @@ namespace client if (it != m_Destinations.end ()) { it->second->Stop (); - delete it->second; m_Destinations.erase (it); } } - BOBDestination * BOBCommandChannel::FindDestination (const std::string& name) + std::shared_ptr BOBCommandChannel::FindDestination (const std::string& name) { auto it = m_Destinations.find (name); if (it != m_Destinations.end ()) @@ -762,8 +956,7 @@ namespace client session->SendVersion (); } else - LogPrint (eLogError, "BOB: accept error: ", ecode.message ()); + LogPrint (eLogError, "BOB: Accept error: ", ecode.message ()); } } } - diff --git a/libi2pd_client/BOB.h b/libi2pd_client/BOB.h index a2a24164..f5aefd0a 100644 --- a/libi2pd_client/BOB.h +++ b/libi2pd_client/BOB.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef BOB_H__ #define BOB_H__ @@ -7,6 +15,7 @@ #include #include #include +#include "util.h" #include "I2PTunnel.h" #include "I2PService.h" #include "Identity.h" @@ -33,16 +42,52 @@ namespace client const char BOB_COMMAND_INPORT[] = "inport"; const char BOB_COMMAND_QUIET[] = "quiet"; const char BOB_COMMAND_LOOKUP[] = "lookup"; + const char BOB_COMMAND_LOOKUP_LOCAL[] = "lookuplocal"; const char BOB_COMMAND_CLEAR[] = "clear"; const char BOB_COMMAND_LIST[] = "list"; const char BOB_COMMAND_OPTION[] = "option"; const char BOB_COMMAND_STATUS[] = "status"; + const char BOB_COMMAND_HELP[] = "help"; - const char BOB_VERSION[] = "BOB 00.00.10\nOK\n"; - const char BOB_REPLY_OK[] = "OK %s\n"; - const char BOB_REPLY_ERROR[] = "ERROR %s\n"; - const char BOB_DATA[] = "NICKNAME %s\n"; + const char BOB_HELP_ZAP[] = "zap - Shuts down BOB."; + const char BOB_HELP_QUIT[] = "quit - Quits this session with BOB."; + const char BOB_HELP_START[] = "start - Starts the current nicknamed tunnel."; + const char BOB_HELP_STOP[] = "stop - Stops the current nicknamed tunnel."; + const char BOB_HELP_SETNICK[] = "setnick - Creates a new nickname."; + const char BOB_HELP_GETNICK[] = "getnick - Sets the nickname from the database."; + const char BOB_HELP_NEWKEYS[] = "newkeys - Generate a new keypair for the current nickname."; + const char BOB_HELP_GETKEYS[] = "getkeys - Return the keypair for the current nickname."; + const char BOB_HELP_SETKEYS[] = "setkeys - Sets the keypair for the current nickname."; + const char BOB_HELP_GETDEST[] = "getdest - Return the destination for the current nickname."; + const char BOB_HELP_OUTHOST[] = "outhost - Set the outhound hostname or IP."; + const char BOB_HELP_OUTPORT[] = "outport - Set the outbound port that nickname contacts."; + const char BOB_HELP_INHOST[] = "inhost - Set the inbound hostname or IP."; + const char BOB_HELP_INPORT[] = "inport - Set the inbound port number nickname listens on."; + const char BOB_HELP_QUIET[] = "quiet - Whether to send the incoming destination."; + const char BOB_HELP_LOOKUP[] = "lookup - Look up an I2P hostname."; + const char BOB_HELP_CLEAR[] = "clear - Clear the current nickname out of the list."; + const char BOB_HELP_LIST[] = "list - List all tunnels."; + const char BOB_HELP_OPTION[] = "option = - Set an option. NOTE: Don't use any spaces."; + const char BOB_HELP_STATUS[] = "status - Display status of a nicknamed tunnel."; + const char BOB_HELP_HELP [] = "help - Get help on a command."; + class BOBI2PTunnelIncomingConnection: public I2PTunnelConnection + { + public: + + BOBI2PTunnelIncomingConnection (I2PService * owner, std::shared_ptr stream, + const boost::asio::ip::tcp::endpoint& target, bool quiet): + I2PTunnelConnection (owner, stream, target), m_IsQuiet (quiet) {}; + + protected: + + void Established () override; + + private: + + bool m_IsQuiet; // don't send destination + }; + class BOBI2PTunnel: public I2PService { public: @@ -56,15 +101,15 @@ namespace client class BOBI2PInboundTunnel: public BOBI2PTunnel { - struct AddressReceiver - { - std::shared_ptr socket; - char buffer[BOB_COMMAND_BUFFER_SIZE + 1]; // for destination base64 address - uint8_t * data; // pointer to buffer - size_t dataLen, bufferOffset; + struct AddressReceiver + { + std::shared_ptr socket; + char buffer[BOB_COMMAND_BUFFER_SIZE + 1]; // for destination base64 address + uint8_t * data; // pointer to buffer + size_t dataLen, bufferOffset; - AddressReceiver (): data (nullptr), dataLen (0), bufferOffset (0) {}; - }; + AddressReceiver (): data (nullptr), dataLen (0), bufferOffset (0) {}; + }; public: @@ -96,7 +141,7 @@ namespace client { public: - BOBI2POutboundTunnel (const std::string& address, int port, std::shared_ptr localDestination, bool quiet); + BOBI2POutboundTunnel (const std::string& outhost, uint16_t port, std::shared_ptr localDestination, bool quiet); void Start (); void Stop (); @@ -119,14 +164,23 @@ namespace client { public: - BOBDestination (std::shared_ptr localDestination); + BOBDestination (std::shared_ptr localDestination, + const std::string &nickname, const std::string &inhost, const std::string &outhost, + const uint16_t inport, const uint16_t outport, const bool quiet); ~BOBDestination (); void Start (); void Stop (); void StopTunnels (); - void CreateInboundTunnel (int port, const std::string& address); - void CreateOutboundTunnel (const std::string& address, int port, bool quiet); + void CreateInboundTunnel (uint16_t port, const std::string& inhost); + void CreateOutboundTunnel (const std::string& outhost, uint16_t port, bool quiet); + const std::string& GetNickname() const { return m_Nickname; } + const std::string& GetInHost() const { return m_InHost; } + const std::string& GetOutHost() const { return m_OutHost; } + uint16_t GetInPort() const { return m_InPort; } + uint16_t GetOutPort() const { return m_OutPort; } + bool GetQuiet() const { return m_Quiet; } + bool IsRunning() const { return m_IsRunning; } const i2p::data::PrivateKeys& GetKeys () const { return m_LocalDestination->GetPrivateKeys (); }; std::shared_ptr GetLocalDestination () const { return m_LocalDestination; }; @@ -135,6 +189,12 @@ namespace client std::shared_ptr m_LocalDestination; BOBI2POutboundTunnel * m_OutboundTunnel; BOBI2PInboundTunnel * m_InboundTunnel; + + std::string m_Nickname; + std::string m_InHost, m_OutHost; + uint16_t m_InPort, m_OutPort; + bool m_Quiet; + bool m_IsRunning; }; class BOBCommandChannel; @@ -166,74 +226,75 @@ namespace client void InportCommandHandler (const char * operand, size_t len); void QuietCommandHandler (const char * operand, size_t len); void LookupCommandHandler (const char * operand, size_t len); + void LookupLocalCommandHandler (const char * operand, size_t len); void ClearCommandHandler (const char * operand, size_t len); void ListCommandHandler (const char * operand, size_t len); void OptionCommandHandler (const char * operand, size_t len); void StatusCommandHandler (const char * operand, size_t len); + void HelpCommandHandler (const char * operand, size_t len); private: void Receive (); + void HandleReceivedLine(const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void Send (size_t len); + void Send (); void HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void SendReplyOK (const char * msg); + void SendReplyOK (const char * msg = nullptr); void SendReplyError (const char * msg); - void SendData (const char * nickname); + void SendRaw (const char * data); + + void BuildStatusLine(bool currentTunnel, std::shared_ptr destination, std::string &out); private: BOBCommandChannel& m_Owner; boost::asio::ip::tcp::socket m_Socket; - char m_ReceiveBuffer[BOB_COMMAND_BUFFER_SIZE + 1], m_SendBuffer[BOB_COMMAND_BUFFER_SIZE + 1]; - size_t m_ReceiveBufferOffset; + boost::asio::streambuf m_ReceiveBuffer, m_SendBuffer; bool m_IsOpen, m_IsQuiet, m_IsActive; - std::string m_Nickname, m_Address; - int m_InPort, m_OutPort; + std::string m_Nickname, m_InHost, m_OutHost; + uint16_t m_InPort, m_OutPort; i2p::data::PrivateKeys m_Keys; std::map m_Options; - BOBDestination * m_CurrentDestination; + std::shared_ptr m_CurrentDestination; }; typedef void (BOBCommandSession::*BOBCommandHandler)(const char * operand, size_t len); - class BOBCommandChannel + class BOBCommandChannel: private i2p::util::RunnableService { public: - BOBCommandChannel (const std::string& address, int port); + BOBCommandChannel (const std::string& address, uint16_t port); ~BOBCommandChannel (); void Start (); void Stop (); - boost::asio::io_service& GetService () { return m_Service; }; - void AddDestination (const std::string& name, BOBDestination * dest); + auto& GetService () { return GetIOService (); }; + void AddDestination (const std::string& name, std::shared_ptr dest); void DeleteDestination (const std::string& name); - BOBDestination * FindDestination (const std::string& name); + std::shared_ptr FindDestination (const std::string& name); private: - void Run (); void Accept (); void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr session); private: - bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; boost::asio::ip::tcp::acceptor m_Acceptor; - std::map m_Destinations; + std::map > m_Destinations; std::map m_CommandHandlers; + std::map m_HelpStrings; public: const decltype(m_CommandHandlers)& GetCommandHandlers () const { return m_CommandHandlers; }; + const decltype(m_HelpStrings)& GetHelpStrings () const { return m_HelpStrings; }; const decltype(m_Destinations)& GetDestinations () const { return m_Destinations; }; }; } } #endif - diff --git a/libi2pd_client/ClientContext.cpp b/libi2pd_client/ClientContext.cpp index 3292419a..d26e33ab 100644 --- a/libi2pd_client/ClientContext.cpp +++ b/libi2pd_client/ClientContext.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -8,8 +16,8 @@ #include "Identity.h" #include "util.h" #include "ClientContext.h" +#include "HTTPProxy.h" #include "SOCKS.h" -#include "WebSocks.h" #include "MatchedDestination.h" namespace i2p @@ -53,15 +61,22 @@ namespace client // SAM bool sam; i2p::config::GetOption("sam.enabled", sam); - if (sam) { + if (sam) + { std::string samAddr; i2p::config::GetOption("sam.address", samAddr); - uint16_t samPort; i2p::config::GetOption("sam.port", samPort); - LogPrint(eLogInfo, "Clients: starting SAM bridge at ", samAddr, ":", samPort); - try { - m_SamBridge = new SAMBridge (samAddr, samPort); - m_SamBridge->Start (); - } catch (std::exception& e) { - LogPrint(eLogError, "Clients: Exception in SAM bridge: ", e.what()); + uint16_t samPortTCP; i2p::config::GetOption("sam.port", samPortTCP); + uint16_t samPortUDP; i2p::config::GetOption("sam.portudp", samPortUDP); + bool singleThread; i2p::config::GetOption("sam.singlethread", singleThread); + LogPrint(eLogInfo, "Clients: Starting SAM bridge at ", samAddr, ":[", samPortTCP, "|", samPortUDP, "]"); + try + { + m_SamBridge = new SAMBridge (samAddr, samPortTCP, samPortUDP, singleThread); + m_SamBridge->Start (); + } + catch (std::exception& e) + { + LogPrint(eLogCritical, "Clients: Exception in SAM bridge: ", e.what()); + ThrowFatal ("Unable to start SAM bridge at ", samAddr, ":[", samPortTCP, "|", samPortUDP,"]: ", e.what ()); } } @@ -70,12 +85,16 @@ namespace client if (bob) { std::string bobAddr; i2p::config::GetOption("bob.address", bobAddr); uint16_t bobPort; i2p::config::GetOption("bob.port", bobPort); - LogPrint(eLogInfo, "Clients: starting BOB command channel at ", bobAddr, ":", bobPort); - try { - m_BOBCommandChannel = new BOBCommandChannel (bobAddr, bobPort); - m_BOBCommandChannel->Start (); - } catch (std::exception& e) { - LogPrint(eLogError, "Clients: Exception in BOB bridge: ", e.what()); + LogPrint(eLogInfo, "Clients: Starting BOB command channel at ", bobAddr, ":", bobPort); + try + { + m_BOBCommandChannel = new BOBCommandChannel (bobAddr, bobPort); + m_BOBCommandChannel->Start (); + } + catch (std::exception& e) + { + LogPrint(eLogCritical, "Clients: Exception in BOB bridge: ", e.what()); + ThrowFatal ("Unable to start BOB bridge at ", bobAddr, ":", bobPort, ": ", e.what ()); } } @@ -85,15 +104,17 @@ namespace client { std::string i2cpAddr; i2p::config::GetOption("i2cp.address", i2cpAddr); uint16_t i2cpPort; i2p::config::GetOption("i2cp.port", i2cpPort); - LogPrint(eLogInfo, "Clients: starting I2CP at ", i2cpAddr, ":", i2cpPort); + bool singleThread; i2p::config::GetOption("i2cp.singlethread", singleThread); + LogPrint(eLogInfo, "Clients: Starting I2CP at ", i2cpAddr, ":", i2cpPort); try { - m_I2CPServer = new I2CPServer (i2cpAddr, i2cpPort); + m_I2CPServer = new I2CPServer (i2cpAddr, i2cpPort, singleThread); m_I2CPServer->Start (); } catch (std::exception& e) { - LogPrint(eLogError, "Clients: Exception in I2CP: ", e.what()); + LogPrint(eLogCritical, "Clients: Exception in I2CP: ", e.what()); + ThrowFatal ("Unable to start I2CP at ", i2cpAddr, ":", i2cpPort, ": ", e.what ()); } } @@ -111,7 +132,7 @@ namespace client { if (m_HttpProxy) { - LogPrint(eLogInfo, "Clients: stopping HTTP Proxy"); + LogPrint(eLogInfo, "Clients: Stopping HTTP Proxy"); m_HttpProxy->Stop(); delete m_HttpProxy; m_HttpProxy = nullptr; @@ -119,7 +140,7 @@ namespace client if (m_SocksProxy) { - LogPrint(eLogInfo, "Clients: stopping SOCKS Proxy"); + LogPrint(eLogInfo, "Clients: Stopping SOCKS Proxy"); m_SocksProxy->Stop(); delete m_SocksProxy; m_SocksProxy = nullptr; @@ -127,21 +148,21 @@ namespace client for (auto& it: m_ClientTunnels) { - LogPrint(eLogInfo, "Clients: stopping I2P client tunnel on port ", it.first); + LogPrint(eLogInfo, "Clients: Stopping I2P client tunnel on port ", it.first); it.second->Stop (); } m_ClientTunnels.clear (); for (auto& it: m_ServerTunnels) { - LogPrint(eLogInfo, "Clients: stopping I2P server tunnel"); + LogPrint(eLogInfo, "Clients: Stopping I2P server tunnel"); it.second->Stop (); } m_ServerTunnels.clear (); if (m_SamBridge) { - LogPrint(eLogInfo, "Clients: stopping SAM bridge"); + LogPrint(eLogInfo, "Clients: Stopping SAM bridge"); m_SamBridge->Stop (); delete m_SamBridge; m_SamBridge = nullptr; @@ -149,7 +170,7 @@ namespace client if (m_BOBCommandChannel) { - LogPrint(eLogInfo, "Clients: stopping BOB command channel"); + LogPrint(eLogInfo, "Clients: Stopping BOB command channel"); m_BOBCommandChannel->Stop (); delete m_BOBCommandChannel; m_BOBCommandChannel = nullptr; @@ -157,30 +178,40 @@ namespace client if (m_I2CPServer) { - LogPrint(eLogInfo, "Clients: stopping I2CP"); + LogPrint(eLogInfo, "Clients: Stopping I2CP"); m_I2CPServer->Stop (); delete m_I2CPServer; m_I2CPServer = nullptr; } - LogPrint(eLogInfo, "Clients: stopping AddressBook"); + LogPrint(eLogInfo, "Clients: Stopping AddressBook"); m_AddressBook.Stop (); - { + LogPrint(eLogInfo, "Clients: Stopping UDP Tunnels"); + { std::lock_guard lock(m_ForwardsMutex); m_ServerForwards.clear(); m_ClientForwards.clear(); } + LogPrint(eLogInfo, "Clients: Stopping UDP Tunnels timers"); if (m_CleanupUDPTimer) { m_CleanupUDPTimer->cancel (); m_CleanupUDPTimer = nullptr; } - for (auto& it: m_Destinations) - it.second->Stop (); - m_Destinations.clear (); + { + LogPrint(eLogInfo, "Clients: Stopping Destinations"); + std::lock_guard lock(m_DestinationsMutex); + for (auto& it: m_Destinations) + it.second->Stop (); + LogPrint(eLogInfo, "Clients: Stopping Destinations - Clear"); + m_Destinations.clear (); + } + + LogPrint(eLogInfo, "Clients: Stopping SharedLocalDestination"); + m_SharedLocalDestination->Release (); m_SharedLocalDestination = nullptr; } @@ -190,14 +221,6 @@ namespace client /*std::string config; i2p::config::GetOption("conf", config); i2p::config::ParseConfig(config);*/ - // handle tunnels - // reset isUpdated for each tunnel - VisitTunnels ([](I2PService * s)->bool { s->isUpdated = false; return true; }); - // reload tunnels - ReadTunnels(); - // delete not updated tunnels (not in config anymore) - VisitTunnels ([](I2PService * s)->bool { return s->isUpdated; }); - // change shared local destination m_SharedLocalDestination->Release (); CreateNewSharedLocalDestination (); @@ -206,6 +229,7 @@ namespace client if (m_HttpProxy) { m_HttpProxy->Stop (); + delete m_HttpProxy; m_HttpProxy = nullptr; } ReadHttpProxy (); @@ -214,10 +238,19 @@ namespace client if (m_SocksProxy) { m_SocksProxy->Stop (); + delete m_SocksProxy; m_SocksProxy = nullptr; } ReadSocksProxy (); + // handle tunnels + // reset isUpdated for each tunnel + VisitTunnels (false); + // reload tunnels + ReadTunnels(); + // delete not updated tunnels (not in config anymore) + VisitTunnels (true); + // delete unused destinations std::unique_lock l(m_DestinationsMutex); for (auto it = m_Destinations.begin (); it != m_Destinations.end ();) @@ -232,12 +265,17 @@ namespace client } } - bool ClientContext::LoadPrivateKeys (i2p::data::PrivateKeys& keys, const std::string& filename, + bool ClientContext::LoadPrivateKeys (i2p::data::PrivateKeys& keys, std::string_view filename, i2p::data::SigningKeyType sigType, i2p::data::CryptoKeyType cryptoType) { - if (filename == "transient") +#if __cplusplus >= 202002L // C++20 + if (filename.starts_with ("transient")) +#else + std::string_view transient("transient"); + if (!filename.compare (0, transient.length (), transient)) // starts with transient +#endif { - keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType); + keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType, true); LogPrint (eLogInfo, "Clients: New transient keys address ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " created"); return true; } @@ -254,7 +292,7 @@ namespace client s.read ((char *)buf, len); if(!keys.FromBuffer (buf, len)) { - LogPrint (eLogError, "Clients: failed to load keyfile ", filename); + LogPrint (eLogCritical, "Clients: Failed to load keyfile ", filename); success = false; } else @@ -263,8 +301,8 @@ namespace client } else { - LogPrint (eLogError, "Clients: can't open file ", fullPath, " Creating new one with signature type ", sigType, " crypto type ", cryptoType); - keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType); + LogPrint (eLogInfo, "Clients: Can't open file ", fullPath, " Creating new one with signature type ", sigType, " crypto type ", cryptoType); + keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType, true); std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out); size_t len = keys.GetFullLen (); uint8_t * buf = new uint8_t[len]; @@ -304,22 +342,35 @@ namespace client i2p::data::SigningKeyType sigType, i2p::data::CryptoKeyType cryptoType, const std::map * params) { - i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType); - auto localDestination = std::make_shared (keys, isPublic, params); - std::unique_lock l(m_DestinationsMutex); - m_Destinations[localDestination->GetIdentHash ()] = localDestination; - localDestination->Start (); + i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType, true); + auto localDestination = std::make_shared (keys, isPublic, params); + AddLocalDestination (localDestination); + return localDestination; + } + + std::shared_ptr ClientContext::CreateNewLocalDestination ( + boost::asio::io_context& service, bool isPublic, + i2p::data::SigningKeyType sigType, i2p::data::CryptoKeyType cryptoType, + const std::map * params) + { + i2p::data::PrivateKeys keys = i2p::data::PrivateKeys::CreateRandomKeys (sigType, cryptoType, true); + auto localDestination = std::make_shared (service, keys, isPublic, params); + AddLocalDestination (localDestination); return localDestination; } std::shared_ptr ClientContext::CreateNewMatchedTunnelDestination(const i2p::data::PrivateKeys &keys, const std::string & name, const std::map * params) { - MatchedTunnelDestination * cl = new MatchedTunnelDestination(keys, name, params); - auto localDestination = std::shared_ptr(cl); + auto localDestination = std::make_shared(keys, name, params); + AddLocalDestination (localDestination); + return localDestination; + } + + void ClientContext::AddLocalDestination (std::shared_ptr localDestination) + { std::unique_lock l(m_DestinationsMutex); m_Destinations[localDestination->GetIdentHash ()] = localDestination; localDestination->Start (); - return localDestination; } void ClientContext::DeleteLocalDestination (std::shared_ptr destination) @@ -344,20 +395,37 @@ namespace client if (it != m_Destinations.end ()) { LogPrint (eLogWarning, "Clients: Local destination ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " exists"); - if (!it->second->IsRunning ()) - it->second->Start (); + it->second->Start (); // make sure to start return it->second; } - auto localDestination = std::make_shared (keys, isPublic, params); - std::unique_lock l(m_DestinationsMutex); - m_Destinations[keys.GetPublic ()->GetIdentHash ()] = localDestination; - localDestination->Start (); + auto localDestination = std::make_shared (keys, isPublic, params); + AddLocalDestination (localDestination); + return localDestination; + } + + std::shared_ptr ClientContext::CreateNewLocalDestination (boost::asio::io_context& service, + const i2p::data::PrivateKeys& keys, bool isPublic, const std::map * params) + { + auto it = m_Destinations.find (keys.GetPublic ()->GetIdentHash ()); + if (it != m_Destinations.end ()) + { + LogPrint (eLogWarning, "Clients: Local destination ", m_AddressBook.ToAddress(keys.GetPublic ()->GetIdentHash ()), " exists"); + it->second->Start (); // make sure to start + return it->second; + } + auto localDestination = std::make_shared (service, keys, isPublic, params); + AddLocalDestination (localDestination); return localDestination; } void ClientContext::CreateNewSharedLocalDestination () { - m_SharedLocalDestination = CreateNewLocalDestination (); // non-public, EDDSA + std::map params; + ReadI2CPOptionsFromConfig ("shareddest.", params); + params[I2CP_PARAM_OUTBOUND_NICKNAME] = "SharedDest"; + + m_SharedLocalDestination = CreateNewLocalDestination (false, i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, + i2p::data::CRYPTO_KEY_TYPE_ELGAMAL, ¶ms); // non-public, EDDSA m_SharedLocalDestination->Acquire (); } @@ -372,29 +440,61 @@ namespace client template std::string ClientContext::GetI2CPOption (const Section& section, const std::string& name, const Type& value) const { - return section.second.get (boost::property_tree::ptree::path_type (name, '/'), std::to_string (value)); + return section.second.get (boost::property_tree::ptree::path_type (name, '/'), std::to_string (value)); } template std::string ClientContext::GetI2CPStringOption (const Section& section, const std::string& name, const std::string& value) const { - return section.second.get (boost::property_tree::ptree::path_type (name, '/'), value); + return section.second.get (boost::property_tree::ptree::path_type (name, '/'), value); } template - void ClientContext::ReadI2CPOptions (const Section& section, std::map& options) const + void ClientContext::ReadI2CPOptionsGroup (const Section& section, const std::string& group, std::map& options) const { - options[I2CP_PARAM_INBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNEL_LENGTH, DEFAULT_INBOUND_TUNNEL_LENGTH); + for (auto it: section.second) + { + if (it.first.length () >= group.length () && !it.first.compare (0, group.length (), group)) + options[it.first] = it.second.get_value (""); + } + } + + template + void ClientContext::ReadI2CPOptions (const Section& section, bool isServer, std::map& options) const + { + options[I2CP_PARAM_INBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNEL_LENGTH, DEFAULT_INBOUND_TUNNEL_LENGTH); options[I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH, DEFAULT_OUTBOUND_TUNNEL_LENGTH); options[I2CP_PARAM_INBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNELS_QUANTITY, DEFAULT_INBOUND_TUNNELS_QUANTITY); options[I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY, DEFAULT_OUTBOUND_TUNNELS_QUANTITY); + options[I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE, DEFAULT_INBOUND_TUNNELS_LENGTH_VARIANCE); + options[I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE, DEFAULT_OUTBOUND_TUNNELS_LENGTH_VARIANCE); options[I2CP_PARAM_TAGS_TO_SEND] = GetI2CPOption (section, I2CP_PARAM_TAGS_TO_SEND, DEFAULT_TAGS_TO_SEND); options[I2CP_PARAM_MIN_TUNNEL_LATENCY] = GetI2CPOption(section, I2CP_PARAM_MIN_TUNNEL_LATENCY, DEFAULT_MIN_TUNNEL_LATENCY); options[I2CP_PARAM_MAX_TUNNEL_LATENCY] = GetI2CPOption(section, I2CP_PARAM_MAX_TUNNEL_LATENCY, DEFAULT_MAX_TUNNEL_LATENCY); options[I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY] = GetI2CPOption(section, I2CP_PARAM_STREAMING_INITIAL_ACK_DELAY, DEFAULT_INITIAL_ACK_DELAY); + options[I2CP_PARAM_STREAMING_MAX_OUTBOUND_SPEED] = GetI2CPOption(section, I2CP_PARAM_STREAMING_MAX_OUTBOUND_SPEED, DEFAULT_MAX_OUTBOUND_SPEED); + options[I2CP_PARAM_STREAMING_MAX_INBOUND_SPEED] = GetI2CPOption(section, I2CP_PARAM_STREAMING_MAX_INBOUND_SPEED, DEFAULT_MAX_INBOUND_SPEED); + options[I2CP_PARAM_STREAMING_MAX_CONCURRENT_STREAMS] = GetI2CPOption(section, I2CP_PARAM_STREAMING_MAX_CONCURRENT_STREAMS, DEFAULT_MAX_CONCURRENT_STREAMS); + options[I2CP_PARAM_STREAMING_ANSWER_PINGS] = GetI2CPOption(section, I2CP_PARAM_STREAMING_ANSWER_PINGS, isServer ? DEFAULT_ANSWER_PINGS : false); + options[I2CP_PARAM_STREAMING_PROFILE] = GetI2CPOption(section, I2CP_PARAM_STREAMING_PROFILE, DEFAULT_STREAMING_PROFILE); options[I2CP_PARAM_LEASESET_TYPE] = GetI2CPOption(section, I2CP_PARAM_LEASESET_TYPE, DEFAULT_LEASESET_TYPE); - std::string encType = GetI2CPStringOption(section, I2CP_PARAM_LEASESET_ENCRYPTION_TYPE, ""); + std::string encType = GetI2CPStringOption(section, I2CP_PARAM_LEASESET_ENCRYPTION_TYPE, isServer ? "4" : "0,4"); if (encType.length () > 0) options[I2CP_PARAM_LEASESET_ENCRYPTION_TYPE] = encType; + std::string privKey = GetI2CPStringOption(section, I2CP_PARAM_LEASESET_PRIV_KEY, ""); + if (privKey.length () > 0) options[I2CP_PARAM_LEASESET_PRIV_KEY] = privKey; + auto authType = GetI2CPOption(section, I2CP_PARAM_LEASESET_AUTH_TYPE, 0); + if (authType != "0") // auth is set + { + options[I2CP_PARAM_LEASESET_AUTH_TYPE] = authType; + if (authType == "1") // DH + ReadI2CPOptionsGroup (section, I2CP_PARAM_LEASESET_CLIENT_DH, options); + else if (authType == "2") // PSK + ReadI2CPOptionsGroup (section, I2CP_PARAM_LEASESET_CLIENT_PSK, options); + } + std::string explicitPeers = GetI2CPStringOption(section, I2CP_PARAM_EXPLICIT_PEERS, ""); + if (explicitPeers.length () > 0) options[I2CP_PARAM_EXPLICIT_PEERS] = explicitPeers; + std::string ratchetInboundTags = GetI2CPStringOption(section, I2CP_PARAM_RATCHET_INBOUND_TAGS, ""); + if (ratchetInboundTags.length () > 0) options[I2CP_PARAM_RATCHET_INBOUND_TAGS] = ratchetInboundTags; } void ClientContext::ReadI2CPOptionsFromConfig (const std::string& prefix, std::map& options) const @@ -404,14 +504,26 @@ namespace client options[I2CP_PARAM_INBOUND_TUNNEL_LENGTH] = value; if (i2p::config::GetOption(prefix + I2CP_PARAM_INBOUND_TUNNELS_QUANTITY, value)) options[I2CP_PARAM_INBOUND_TUNNELS_QUANTITY] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE, value)) + options[I2CP_PARAM_INBOUND_TUNNELS_LENGTH_VARIANCE] = value; if (i2p::config::GetOption(prefix + I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH, value)) options[I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH] = value; if (i2p::config::GetOption(prefix + I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY, value)) options[I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE, value)) + options[I2CP_PARAM_OUTBOUND_TUNNELS_LENGTH_VARIANCE] = value; if (i2p::config::GetOption(prefix + I2CP_PARAM_MIN_TUNNEL_LATENCY, value)) options[I2CP_PARAM_MIN_TUNNEL_LATENCY] = value; if (i2p::config::GetOption(prefix + I2CP_PARAM_MAX_TUNNEL_LATENCY, value)) options[I2CP_PARAM_MAX_TUNNEL_LATENCY] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_LEASESET_TYPE, value)) + options[I2CP_PARAM_LEASESET_TYPE] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_LEASESET_ENCRYPTION_TYPE, value)) + options[I2CP_PARAM_LEASESET_ENCRYPTION_TYPE] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_LEASESET_PRIV_KEY, value) && !value.empty ()) + options[I2CP_PARAM_LEASESET_PRIV_KEY] = value; + if (i2p::config::GetOption(prefix + I2CP_PARAM_STREAMING_PROFILE, value)) + options[I2CP_PARAM_STREAMING_PROFILE] = value; } void ClientContext::ReadTunnels () @@ -419,20 +531,15 @@ namespace client int numClientTunnels = 0, numServerTunnels = 0; std::string tunConf; i2p::config::GetOption("tunconf", tunConf); if (tunConf.empty ()) - { - // TODO: cleanup this in 2.8.0 - tunConf = i2p::fs::DataDirPath ("tunnels.cfg"); - if (i2p::fs::Exists(tunConf)) - LogPrint(eLogWarning, "Clients: please rename tunnels.cfg -> tunnels.conf here: ", tunConf); - else - tunConf = i2p::fs::DataDirPath ("tunnels.conf"); - } - LogPrint(eLogDebug, "Clients: tunnels config file: ", tunConf); + tunConf = i2p::fs::DataDirPath ("tunnels.conf"); + + LogPrint(eLogDebug, "Clients: Tunnels config file: ", tunConf); ReadTunnels (tunConf, numClientTunnels, numServerTunnels); std::string tunDir; i2p::config::GetOption("tunnelsdir", tunDir); if (tunDir.empty ()) tunDir = i2p::fs::DataDirPath ("tunnels.d"); + if (i2p::fs::Exists (tunDir)) { std::vector files; @@ -440,7 +547,12 @@ namespace client { for (auto& it: files) { - LogPrint(eLogDebug, "Clients: tunnels extra config file: ", it); +#if __cplusplus >= 202002L // C++20 + if (!it.ends_with (".conf")) continue; +#else + if (it.substr(it.size() - 5) != ".conf") continue; // skip files which not ends with ".conf" +#endif + LogPrint(eLogDebug, "Clients: Tunnels extra config file: ", it); ReadTunnels (it, numClientTunnels, numServerTunnels); } } @@ -450,20 +562,17 @@ namespace client LogPrint (eLogInfo, "Clients: ", numServerTunnels, " I2P server tunnels created"); } - void ClientContext::ReadTunnels (const std::string& tunConf, int& numClientTunnels, int& numServerTunnels) { boost::property_tree::ptree pt; - try - { + try { boost::property_tree::read_ini (tunConf, pt); - } - catch (std::exception& ex) - { + } catch (std::exception& ex) { LogPrint (eLogWarning, "Clients: Can't read ", tunConf, ": ", ex.what ()); return; } + std::map > destinations; // keys -> destination for (auto& section: pt) { std::string name = section.first; @@ -471,40 +580,55 @@ namespace client { std::string type = section.second.get (I2P_TUNNELS_SECTION_TYPE); if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT - || type == I2P_TUNNELS_SECTION_TYPE_SOCKS - || type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS - || type == I2P_TUNNELS_SECTION_TYPE_HTTPPROXY - || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) + || type == I2P_TUNNELS_SECTION_TYPE_SOCKS + || type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS + || type == I2P_TUNNELS_SECTION_TYPE_HTTPPROXY + || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) { // mandatory params std::string dest; if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) dest = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION); - int port = section.second.get (I2P_CLIENT_TUNNEL_PORT); + uint16_t port = section.second.get (I2P_CLIENT_TUNNEL_PORT); // optional params - bool matchTunnels = section.second.get(I2P_CLIENT_TUNNEL_MATCH_TUNNELS, false); - std::string keys = section.second.get (I2P_CLIENT_TUNNEL_KEYS, "transient"); - std::string address = section.second.get (I2P_CLIENT_TUNNEL_ADDRESS, "127.0.0.1"); - int destinationPort = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION_PORT, 0); + bool matchTunnels = section.second.get (I2P_CLIENT_TUNNEL_MATCH_TUNNELS, false); + std::string keys = section.second.get (I2P_CLIENT_TUNNEL_KEYS, "transient"); + std::string address = section.second.get (I2P_CLIENT_TUNNEL_ADDRESS, "127.0.0.1"); + uint16_t destinationPort = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION_PORT, 0); i2p::data::SigningKeyType sigType = section.second.get (I2P_CLIENT_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519); i2p::data::CryptoKeyType cryptoType = section.second.get (I2P_CLIENT_TUNNEL_CRYPTO_TYPE, i2p::data::CRYPTO_KEY_TYPE_ELGAMAL); // I2CP std::map options; - ReadI2CPOptions (section, options); + ReadI2CPOptions (section, false, options); + + // Set I2CP name if not set + auto itopt = options.find (I2CP_PARAM_OUTBOUND_NICKNAME); + if (itopt == options.end ()) + options[I2CP_PARAM_OUTBOUND_NICKNAME] = name; std::shared_ptr localDestination = nullptr; - if (keys.length () > 0) + if (keys == "shareddest") + localDestination = m_SharedLocalDestination; + else if (keys.length () > 0) { - i2p::data::PrivateKeys k; - if(LoadPrivateKeys (k, keys, sigType, cryptoType)) + auto it = destinations.find (keys); + if (it != destinations.end ()) + localDestination = it->second; + else { - localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ()); - if (!localDestination) + i2p::data::PrivateKeys k; + if(LoadPrivateKeys (k, keys, sigType, cryptoType)) { - if(matchTunnels) - localDestination = CreateNewMatchedTunnelDestination(k, dest, &options); - else - localDestination = CreateNewLocalDestination (k, type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT, &options); + localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ()); + if (!localDestination) + { + if(matchTunnels) + localDestination = CreateNewMatchedTunnelDestination(k, dest, &options); + else + localDestination = CreateNewLocalDestination (k, type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT, &options); + if (keys != "transient") + destinations[keys] = localDestination; + } } } } @@ -512,18 +636,32 @@ namespace client if (type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) { // udp client // TODO: hostnames - boost::asio::ip::udp::endpoint end(boost::asio::ip::address::from_string(address), port); + boost::asio::ip::udp::endpoint end (boost::asio::ip::make_address(address), port); if (!localDestination) - { localDestination = m_SharedLocalDestination; - } - auto clientTunnel = std::make_shared(name, dest, end, localDestination, destinationPort); - if(m_ClientForwards.insert(std::make_pair(end, clientTunnel)).second) + + bool gzip = section.second.get (I2P_CLIENT_TUNNEL_GZIP, true); + auto clientTunnel = std::make_shared (name, dest, end, localDestination, destinationPort, gzip); + + auto ins = m_ClientForwards.insert (std::make_pair (end, clientTunnel)); + if (ins.second) { - clientTunnel->Start(); + clientTunnel->Start (); + numClientTunnels++; } else + { + // TODO: update + if (ins.first->second->GetLocalDestination () != clientTunnel->GetLocalDestination ()) + { + LogPrint (eLogInfo, "Clients: I2P UDP client tunnel destination updated"); + ins.first->second->Stop (); + ins.first->second->SetLocalDestination (clientTunnel->GetLocalDestination ()); + ins.first->second->Start (); + } + ins.first->second->isUpdated = true; LogPrint(eLogError, "Clients: I2P Client forward for endpoint ", end, " already exists"); + } } else { boost::asio::ip::tcp::endpoint clientEndpoint; @@ -541,16 +679,16 @@ namespace client // http proxy std::string outproxy = section.second.get("outproxy", ""); bool addresshelper = section.second.get("addresshelper", true); - auto tun = std::make_shared(name, address, port, outproxy, addresshelper, localDestination); + bool senduseragent = section.second.get("senduseragent", false); + auto tun = std::make_shared(name, address, port, + outproxy, addresshelper, senduseragent, localDestination); clientTunnel = tun; clientEndpoint = tun->GetLocalEndpoint (); } else if (type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS) { - // websocks proxy - auto tun = std::make_shared(address, port, localDestination); - clientTunnel = tun; - clientEndpoint = tun->GetLocalEndpoint(); + LogPrint(eLogWarning, "Clients: I2P Client tunnel websocks is deprecated, not starting ", name, " tunnel"); + continue; } else { @@ -558,7 +696,15 @@ namespace client auto tun = std::make_shared (name, dest, address, port, localDestination, destinationPort); clientTunnel = tun; clientEndpoint = tun->GetLocalEndpoint (); + + uint32_t keepAlive = section.second.get(I2P_CLIENT_TUNNEL_KEEP_ALIVE_INTERVAL, 0); + if (keepAlive) + { + tun->SetKeepAliveInterval (keepAlive); + LogPrint(eLogInfo, "Clients: I2P Client tunnel keep alive interval set to ", keepAlive); + } } + uint32_t timeout = section.second.get(I2P_CLIENT_TUNNEL_CONNECT_TIMEOUT, 0); if(timeout) { @@ -578,74 +724,113 @@ namespace client if (ins.first->second->GetLocalDestination () != clientTunnel->GetLocalDestination ()) { LogPrint (eLogInfo, "Clients: I2P client tunnel destination updated"); + ins.first->second->Stop (); ins.first->second->SetLocalDestination (clientTunnel->GetLocalDestination ()); + ins.first->second->Start (); } ins.first->second->isUpdated = true; LogPrint (eLogInfo, "Clients: I2P client tunnel for endpoint ", clientEndpoint, " already exists"); } } } + else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER - || type == I2P_TUNNELS_SECTION_TYPE_HTTP - || type == I2P_TUNNELS_SECTION_TYPE_IRC - || type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER) + || type == I2P_TUNNELS_SECTION_TYPE_HTTP + || type == I2P_TUNNELS_SECTION_TYPE_IRC + || type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER) { // mandatory params std::string host = section.second.get (I2P_SERVER_TUNNEL_HOST); - int port = section.second.get (I2P_SERVER_TUNNEL_PORT); + uint16_t port = section.second.get (I2P_SERVER_TUNNEL_PORT); std::string keys = section.second.get (I2P_SERVER_TUNNEL_KEYS); // optional params - int inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, 0); - std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, ""); - std::string hostOverride = section.second.get (I2P_SERVER_TUNNEL_HOST_OVERRIDE, ""); + uint16_t inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, port); + std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, ""); + if(accessList == "") + accessList = section.second.get (I2P_SERVER_TUNNEL_WHITE_LIST, ""); + std::string hostOverride = section.second.get (I2P_SERVER_TUNNEL_HOST_OVERRIDE, ""); std::string webircpass = section.second.get (I2P_SERVER_TUNNEL_WEBIRC_PASSWORD, ""); - bool gzip = section.second.get (I2P_SERVER_TUNNEL_GZIP, true); + bool gzip = section.second.get (I2P_SERVER_TUNNEL_GZIP, false); i2p::data::SigningKeyType sigType = section.second.get (I2P_SERVER_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519); i2p::data::CryptoKeyType cryptoType = section.second.get (I2P_CLIENT_TUNNEL_CRYPTO_TYPE, i2p::data::CRYPTO_KEY_TYPE_ELGAMAL); - std::string address = section.second.get (I2P_SERVER_TUNNEL_ADDRESS, "127.0.0.1"); - bool isUniqueLocal = section.second.get(I2P_SERVER_TUNNEL_ENABLE_UNIQUE_LOCAL, true); + std::string address = section.second.get (I2P_SERVER_TUNNEL_ADDRESS, ""); + bool isUniqueLocal = section.second.get (I2P_SERVER_TUNNEL_ENABLE_UNIQUE_LOCAL, true); + bool ssl = section.second.get (I2P_SERVER_TUNNEL_SSL, false); // I2CP std::map options; - ReadI2CPOptions (section, options); + ReadI2CPOptions (section, true, options); + + // Set I2CP name if not set + auto itopt = options.find (I2CP_PARAM_INBOUND_NICKNAME); + if (itopt == options.end ()) + options[I2CP_PARAM_INBOUND_NICKNAME] = name; std::shared_ptr localDestination = nullptr; - i2p::data::PrivateKeys k; - if(!LoadPrivateKeys (k, keys, sigType, cryptoType)) - continue; - localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ()); - if (!localDestination) - localDestination = CreateNewLocalDestination (k, true, &options); + if (keys == "shareddest") + localDestination = m_SharedLocalDestination; + else + { + auto it = destinations.find (keys); + if (it != destinations.end ()) + { + localDestination = it->second; + localDestination->SetPublic (true); + } + else + { + i2p::data::PrivateKeys k; + if(!LoadPrivateKeys (k, keys, sigType, cryptoType)) + continue; + localDestination = FindLocalDestination (k.GetPublic ()->GetIdentHash ()); + if (!localDestination) + { + localDestination = CreateNewLocalDestination (k, true, &options); + destinations[keys] = localDestination; + } + else + localDestination->SetPublic (true); + } + } if (type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER) { // udp server tunnel // TODO: hostnames - auto localAddress = boost::asio::ip::address::from_string(address); - boost::asio::ip::udp::endpoint endpoint(boost::asio::ip::address::from_string(host), port); - auto serverTunnel = std::make_shared(name, localDestination, localAddress, endpoint, port); + boost::asio::ip::udp::endpoint endpoint(boost::asio::ip::make_address(host), port); + if (address.empty ()) + { + if (!endpoint.address ().is_unspecified () && endpoint.address ().is_v6 ()) + address = "::1"; + else + address = "127.0.0.1"; + } + auto localAddress = boost::asio::ip::make_address(address); + auto serverTunnel = std::make_shared(name, localDestination, localAddress, endpoint, inPort, gzip); if(!isUniqueLocal) { - LogPrint(eLogInfo, "Clients: disabling loopback address mapping"); + LogPrint(eLogInfo, "Clients: Disabling loopback address mapping"); serverTunnel->SetUniqueLocal(isUniqueLocal); } std::lock_guard lock(m_ForwardsMutex); - if(m_ServerForwards.insert( - std::make_pair( - std::make_pair( - localDestination->GetIdentHash(), port), - serverTunnel)).second) + auto ins = m_ServerForwards.insert(std::make_pair( + std::make_pair(localDestination->GetIdentHash(), port), + serverTunnel)); + if (ins.second) { serverTunnel->Start(); LogPrint(eLogInfo, "Clients: I2P Server Forward created for UDP Endpoint ", host, ":", port, " bound on ", address, " for ",localDestination->GetIdentHash().ToBase32()); } else - LogPrint(eLogError, "Clients: I2P Server Forward for destination/port ", m_AddressBook.ToAddress(localDestination->GetIdentHash()), "/", port, "already exists"); + { + ins.first->second->isUpdated = true; + LogPrint(eLogError, "Clients: I2P Server Forward for destination/port ", m_AddressBook.ToAddress(localDestination->GetIdentHash()), "/", port, " already exists"); + } continue; } - std::shared_ptr serverTunnel; + std::shared_ptr serverTunnel; if (type == I2P_TUNNELS_SECTION_TYPE_HTTP) serverTunnel = std::make_shared (name, host, port, localDestination, hostOverride, inPort, gzip); else if (type == I2P_TUNNELS_SECTION_TYPE_IRC) @@ -653,12 +838,15 @@ namespace client else // regular server tunnel by default serverTunnel = std::make_shared (name, host, port, localDestination, inPort, gzip); - if(!isUniqueLocal) + if (!address.empty ()) + serverTunnel->SetLocalAddress (address); + if (!isUniqueLocal) { - LogPrint(eLogInfo, "Clients: disabling loopback address mapping"); + LogPrint(eLogInfo, "Clients: Disabling loopback address mapping"); serverTunnel->SetUniqueLocal(isUniqueLocal); } - + if (ssl) + serverTunnel->SetSSL (true); if (accessList.length () > 0) { std::set idents; @@ -688,20 +876,22 @@ namespace client if (ins.first->second->GetLocalDestination () != serverTunnel->GetLocalDestination ()) { LogPrint (eLogInfo, "Clients: I2P server tunnel destination updated"); + ins.first->second->Stop (); ins.first->second->SetLocalDestination (serverTunnel->GetLocalDestination ()); + ins.first->second->Start (); } ins.first->second->isUpdated = true; - LogPrint (eLogInfo, "Clients: I2P server tunnel for destination/port ", m_AddressBook.ToAddress(localDestination->GetIdentHash ()), "/", inPort, " already exists"); + LogPrint (eLogInfo, "Clients: I2P server tunnel for destination/port ", m_AddressBook.ToAddress(localDestination->GetIdentHash ()), "/", inPort, " already exists"); } } else - LogPrint (eLogWarning, "Clients: Unknown section type=", type, " of ", name, " in ", tunConf); - + LogPrint (eLogError, "Clients: Unknown section type = ", type, " of ", name, " in ", tunConf); } catch (std::exception& ex) { - LogPrint (eLogError, "Clients: Can't read tunnel ", name, " params: ", ex.what ()); + LogPrint (eLogCritical, "Clients: Can't read tunnel ", name, " params: ", ex.what ()); + ThrowFatal ("Unable to start tunnel ", name, ": ", ex.what ()); } } } @@ -712,34 +902,45 @@ namespace client bool httproxy; i2p::config::GetOption("httpproxy.enabled", httproxy); if (httproxy) { - std::string httpProxyKeys; i2p::config::GetOption("httpproxy.keys", httpProxyKeys); - std::string httpProxyAddr; i2p::config::GetOption("httpproxy.address", httpProxyAddr); - uint16_t httpProxyPort; i2p::config::GetOption("httpproxy.port", httpProxyPort); - i2p::data::SigningKeyType sigType; i2p::config::GetOption("httpproxy.signaturetype", sigType); - std::string httpOutProxyURL; i2p::config::GetOption("httpproxy.outproxy", httpOutProxyURL); - bool httpAddresshelper; i2p::config::GetOption("httpproxy.addresshelper", httpAddresshelper); - LogPrint(eLogInfo, "Clients: starting HTTP Proxy at ", httpProxyAddr, ":", httpProxyPort); - if (httpProxyKeys.length () > 0) + std::string httpProxyKeys; i2p::config::GetOption("httpproxy.keys", httpProxyKeys); + std::string httpProxyAddr; i2p::config::GetOption("httpproxy.address", httpProxyAddr); + uint16_t httpProxyPort; i2p::config::GetOption("httpproxy.port", httpProxyPort); + std::string httpOutProxyURL; i2p::config::GetOption("httpproxy.outproxy", httpOutProxyURL); + bool httpAddresshelper; i2p::config::GetOption("httpproxy.addresshelper", httpAddresshelper); + bool httpSendUserAgent; i2p::config::GetOption("httpproxy.senduseragent", httpSendUserAgent); + if (httpAddresshelper) + i2p::config::GetOption("addressbook.enabled", httpAddresshelper); // addresshelper is not supported without address book + i2p::data::SigningKeyType sigType; i2p::config::GetOption("httpproxy.signaturetype", sigType); + LogPrint(eLogInfo, "Clients: Starting HTTP Proxy at ", httpProxyAddr, ":", httpProxyPort); + if (httpProxyKeys == "shareddest") + { + localDestination = m_SharedLocalDestination; + localDestination->Acquire (); + } + else if (httpProxyKeys.length () > 0) { i2p::data::PrivateKeys keys; if(LoadPrivateKeys (keys, httpProxyKeys, sigType)) { std::map params; ReadI2CPOptionsFromConfig ("httpproxy.", params); + params[I2CP_PARAM_OUTBOUND_NICKNAME] = "HTTPProxy"; localDestination = CreateNewLocalDestination (keys, false, ¶ms); if (localDestination) localDestination->Acquire (); } else - LogPrint(eLogError, "Clients: failed to load HTTP Proxy key"); + LogPrint(eLogCritical, "Clients: Failed to load HTTP Proxy key"); } try { - m_HttpProxy = new i2p::proxy::HTTPProxy("HTTP Proxy", httpProxyAddr, httpProxyPort, httpOutProxyURL, httpAddresshelper, localDestination); + m_HttpProxy = new i2p::proxy::HTTPProxy("HTTP Proxy", httpProxyAddr, httpProxyPort, + httpOutProxyURL, httpAddresshelper, httpSendUserAgent, localDestination); m_HttpProxy->Start(); } catch (std::exception& e) { - LogPrint(eLogError, "Clients: Exception in HTTP Proxy: ", e.what()); + LogPrint(eLogCritical, "Clients: Exception in HTTP Proxy: ", e.what()); + ThrowFatal ("Unable to start HTTP Proxy at ", httpProxyAddr, ":", httpProxyPort, ": ", e.what ()); } } } @@ -750,26 +951,39 @@ namespace client bool socksproxy; i2p::config::GetOption("socksproxy.enabled", socksproxy); if (socksproxy) { - std::string socksProxyKeys; i2p::config::GetOption("socksproxy.keys", socksProxyKeys); - std::string socksProxyAddr; i2p::config::GetOption("socksproxy.address", socksProxyAddr); - uint16_t socksProxyPort; i2p::config::GetOption("socksproxy.port", socksProxyPort); - bool socksOutProxy; i2p::config::GetOption("socksproxy.outproxy.enabled", socksOutProxy); - std::string socksOutProxyAddr; i2p::config::GetOption("socksproxy.outproxy", socksOutProxyAddr); - uint16_t socksOutProxyPort; i2p::config::GetOption("socksproxy.outproxyport", socksOutProxyPort); - i2p::data::SigningKeyType sigType; i2p::config::GetOption("socksproxy.signaturetype", sigType); - LogPrint(eLogInfo, "Clients: starting SOCKS Proxy at ", socksProxyAddr, ":", socksProxyPort); - if (socksProxyKeys.length () > 0) + std::string httpProxyKeys; i2p::config::GetOption("httpproxy.keys", httpProxyKeys); + // we still need httpProxyKeys to compare with sockProxyKeys + std::string socksProxyKeys; i2p::config::GetOption("socksproxy.keys", socksProxyKeys); + std::string socksProxyAddr; i2p::config::GetOption("socksproxy.address", socksProxyAddr); + uint16_t socksProxyPort; i2p::config::GetOption("socksproxy.port", socksProxyPort); + bool socksOutProxy; i2p::config::GetOption("socksproxy.outproxy.enabled", socksOutProxy); + std::string socksOutProxyAddr; i2p::config::GetOption("socksproxy.outproxy", socksOutProxyAddr); + uint16_t socksOutProxyPort; i2p::config::GetOption("socksproxy.outproxyport", socksOutProxyPort); + i2p::data::SigningKeyType sigType; i2p::config::GetOption("socksproxy.signaturetype", sigType); + LogPrint(eLogInfo, "Clients: Starting SOCKS Proxy at ", socksProxyAddr, ":", socksProxyPort); + if (socksProxyKeys == "shareddest") + { + localDestination = m_SharedLocalDestination; + localDestination->Acquire (); + } + else if (httpProxyKeys == socksProxyKeys && m_HttpProxy) + { + localDestination = m_HttpProxy->GetLocalDestination (); + localDestination->Acquire (); + } + else if (socksProxyKeys.length () > 0) { i2p::data::PrivateKeys keys; if (LoadPrivateKeys (keys, socksProxyKeys, sigType)) { std::map params; ReadI2CPOptionsFromConfig ("socksproxy.", params); + params[I2CP_PARAM_OUTBOUND_NICKNAME] = "SOCKSProxy"; localDestination = CreateNewLocalDestination (keys, false, ¶ms); if (localDestination) localDestination->Acquire (); } else - LogPrint(eLogError, "Clients: failed to load SOCKS Proxy key"); + LogPrint(eLogCritical, "Clients: Failed to load SOCKS Proxy key"); } try { @@ -779,7 +993,8 @@ namespace client } catch (std::exception& e) { - LogPrint(eLogError, "Clients: Exception in SOCKS Proxy: ", e.what()); + LogPrint(eLogCritical, "Clients: Exception in SOCKS Proxy: ", e.what()); + ThrowFatal ("Unable to start SOCKS Proxy at ", socksProxyAddr, ":", socksProxyPort, ": ", e.what ()); } } } @@ -804,27 +1019,52 @@ namespace client } } - template - void VisitTunnelsContainer (Container& c, Visitor v) + void ClientContext::VisitTunnels (bool clean) { - for (auto it = c.begin (); it != c.end ();) + for (auto it = m_ClientTunnels.begin (); it != m_ClientTunnels.end ();) { - if (!v (it->second.get ())) - { + if(clean && !it->second->isUpdated) { it->second->Stop (); - it = c.erase (it); - } - else + it = m_ClientTunnels.erase(it); + } else { + it->second->isUpdated = false; it++; + } + } + + for (auto it = m_ServerTunnels.begin (); it != m_ServerTunnels.end ();) + { + if(clean && !it->second->isUpdated) { + it->second->Stop (); + it = m_ServerTunnels.erase(it); + } else { + it->second->isUpdated = false; + it++; + } + } + + // TODO: Write correct UDP tunnels stop + for (auto it = m_ClientForwards.begin (); it != m_ClientForwards.end ();) + { + if(clean && !it->second->isUpdated) { + it->second->Stop (); + it = m_ClientForwards.erase(it); + } else { + it->second->isUpdated = false; + it++; + } + } + + for (auto it = m_ServerForwards.begin (); it != m_ServerForwards.end ();) + { + if(clean && !it->second->isUpdated) { + it->second->Stop (); + it = m_ServerForwards.erase(it); + } else { + it->second->isUpdated = false; + it++; + } } } - - template - void ClientContext::VisitTunnels (Visitor v) - { - VisitTunnelsContainer (m_ClientTunnels, v); - VisitTunnelsContainer (m_ServerTunnels, v); - // TODO: implement UDP forwards - } } } diff --git a/libi2pd_client/ClientContext.h b/libi2pd_client/ClientContext.h index 71e052c3..3f7eaf9a 100644 --- a/libi2pd_client/ClientContext.h +++ b/libi2pd_client/ClientContext.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef CLIENT_CONTEXT_H__ #define CLIENT_CONTEXT_H__ @@ -7,13 +15,13 @@ #include #include "Destination.h" #include "I2PService.h" -#include "HTTPProxy.h" -#include "SOCKS.h" #include "I2PTunnel.h" +#include "UDPTunnel.h" #include "SAM.h" #include "BOB.h" #include "I2CP.h" #include "AddressBook.h" +#include "I18N_langs.h" namespace i2p { @@ -33,11 +41,13 @@ namespace client const char I2P_CLIENT_TUNNEL_ADDRESS[] = "address"; const char I2P_CLIENT_TUNNEL_DESTINATION[] = "destination"; const char I2P_CLIENT_TUNNEL_KEYS[] = "keys"; + const char I2P_CLIENT_TUNNEL_GZIP[] = "gzip"; const char I2P_CLIENT_TUNNEL_SIGNATURE_TYPE[] = "signaturetype"; const char I2P_CLIENT_TUNNEL_CRYPTO_TYPE[] = "cryptotype"; const char I2P_CLIENT_TUNNEL_DESTINATION_PORT[] = "destinationport"; const char I2P_CLIENT_TUNNEL_MATCH_TUNNELS[] = "matchtunnels"; - const char I2P_CLIENT_TUNNEL_CONNECT_TIMEOUT[] = "connecttimeout"; + const char I2P_CLIENT_TUNNEL_CONNECT_TIMEOUT[] = "connecttimeout"; + const char I2P_CLIENT_TUNNEL_KEEP_ALIVE_INTERVAL[] = "keepaliveinterval"; const char I2P_SERVER_TUNNEL_HOST[] = "host"; const char I2P_SERVER_TUNNEL_HOST_OVERRIDE[] = "hostoverride"; const char I2P_SERVER_TUNNEL_PORT[] = "port"; @@ -45,11 +55,12 @@ namespace client const char I2P_SERVER_TUNNEL_SIGNATURE_TYPE[] = "signaturetype"; const char I2P_SERVER_TUNNEL_INPORT[] = "inport"; const char I2P_SERVER_TUNNEL_ACCESS_LIST[] = "accesslist"; + const char I2P_SERVER_TUNNEL_WHITE_LIST[] = "whitelist"; const char I2P_SERVER_TUNNEL_GZIP[] = "gzip"; const char I2P_SERVER_TUNNEL_WEBIRC_PASSWORD[] = "webircpassword"; const char I2P_SERVER_TUNNEL_ADDRESS[] = "address"; const char I2P_SERVER_TUNNEL_ENABLE_UNIQUE_LOCAL[] = "enableuniquelocal"; - + const char I2P_SERVER_TUNNEL_SSL[] = "ssl"; class ClientContext { @@ -68,12 +79,20 @@ namespace client i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, i2p::data::CryptoKeyType cryptoType = i2p::data::CRYPTO_KEY_TYPE_ELGAMAL, const std::map * params = nullptr); // used by SAM only + std::shared_ptr CreateNewLocalDestination (boost::asio::io_context& service, + bool isPublic = false, i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, + i2p::data::CryptoKeyType cryptoType = i2p::data::CRYPTO_KEY_TYPE_ELGAMAL, + const std::map * params = nullptr); // same as previous but on external io_service std::shared_ptr CreateNewLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic = true, const std::map * params = nullptr); - std::shared_ptr CreateNewMatchedTunnelDestination(const i2p::data::PrivateKeys &keys, const std::string & name, const std::map * params = nullptr); + std::shared_ptr CreateNewLocalDestination (boost::asio::io_context& service, + const i2p::data::PrivateKeys& keys, bool isPublic = true, + const std::map * params = nullptr); // same as previous but on external io_service + std::shared_ptr CreateNewMatchedTunnelDestination(const i2p::data::PrivateKeys &keys, + const std::string & name, const std::map * params = nullptr); void DeleteLocalDestination (std::shared_ptr destination); std::shared_ptr FindLocalDestination (const i2p::data::IdentHash& destination) const; - bool LoadPrivateKeys (i2p::data::PrivateKeys& keys, const std::string& filename, + bool LoadPrivateKeys (i2p::data::PrivateKeys& keys, std::string_view filename, i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519, i2p::data::CryptoKeyType cryptoType = i2p::data::CRYPTO_KEY_TYPE_ELGAMAL); @@ -84,6 +103,10 @@ namespace client std::vector > GetForwardInfosFor(const i2p::data::IdentHash & destination); + // i18n + std::shared_ptr GetLanguage () { return m_Language; }; + void SetLanguage (const std::shared_ptr language) { m_Language = language; }; + private: void ReadTunnels (); @@ -95,16 +118,18 @@ namespace client template std::string GetI2CPStringOption (const Section& section, const std::string& name, const std::string& value) const; // GetI2CPOption with string default value template - void ReadI2CPOptions (const Section& section, std::map& options) const; // for tunnels + void ReadI2CPOptionsGroup (const Section& section, const std::string& group, std::map& options) const; + template + void ReadI2CPOptions (const Section& section, bool isServer, std::map& options) const; // for tunnels void ReadI2CPOptionsFromConfig (const std::string& prefix, std::map& options) const; // for HTTP and SOCKS proxy void CleanupUDP(const boost::system::error_code & ecode); void ScheduleCleanupUDP(); - template - void VisitTunnels (Visitor v); // Visitor: (I2PService *) -> bool, true means retain + void VisitTunnels (bool clean); - void CreateNewSharedLocalDestination (); + void CreateNewSharedLocalDestination (); + void AddLocalDestination (std::shared_ptr localDestination); private: @@ -114,10 +139,9 @@ namespace client AddressBook m_AddressBook; - i2p::proxy::HTTPProxy * m_HttpProxy; - i2p::proxy::SOCKSProxy * m_SocksProxy; - std::map > m_ClientTunnels; // local endpoint->tunnel - std::map, std::shared_ptr > m_ServerTunnels; // ->tunnel + I2PService * m_HttpProxy, * m_SocksProxy; + std::map > m_ClientTunnels; // local endpoint -> tunnel + std::map, std::shared_ptr > m_ServerTunnels; // -> tunnel std::mutex m_ForwardsMutex; std::map > m_ClientForwards; // local endpoint -> udp tunnel @@ -129,15 +153,19 @@ namespace client std::unique_ptr m_CleanupUDPTimer; + // i18n + std::shared_ptr m_Language; + public: + // for HTTP const decltype(m_Destinations)& GetDestinations () const { return m_Destinations; }; const decltype(m_ClientTunnels)& GetClientTunnels () const { return m_ClientTunnels; }; const decltype(m_ServerTunnels)& GetServerTunnels () const { return m_ServerTunnels; }; const decltype(m_ClientForwards)& GetClientForwards () const { return m_ClientForwards; } const decltype(m_ServerForwards)& GetServerForwards () const { return m_ServerForwards; } - const i2p::proxy::HTTPProxy * GetHttpProxy () const { return m_HttpProxy; } - const i2p::proxy::SOCKSProxy * GetSocksProxy () const { return m_SocksProxy; } + const I2PService * GetHttpProxy () const { return m_HttpProxy; } + const I2PService * GetSocksProxy () const { return m_SocksProxy; } }; extern ClientContext context; diff --git a/libi2pd_client/HTTPProxy.cpp b/libi2pd_client/HTTPProxy.cpp index df4895a4..4c2771b5 100644 --- a/libi2pd_client/HTTPProxy.cpp +++ b/libi2pd_client/HTTPProxy.cpp @@ -1,10 +1,20 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include +#include #include #include #include #include +#include #include #include "I2PService.h" @@ -19,25 +29,39 @@ #include "I2PTunnel.h" #include "Config.h" #include "HTTP.h" +#include "I18N.h" +#include "Socks5.h" namespace i2p { namespace proxy { - std::map jumpservices = { - { "inr.i2p", "http://joajgazyztfssty4w2on5oaqksz6tqoxbduy553y34mf4byv6gpq.b32.i2p/search/?q=" }, - { "stats.i2p", "http://7tbay5p4kzeekxvyvbf6v7eauazemsnnl2aoyqhg5jzpr5eke7tq.b32.i2p/cgi-bin/jump.cgi?a=" }, + static const std::vector jumporder = { + "reg.i2p", + "stats.i2p", + "identiguy.i2p", + "notbob.i2p" + }; + + static const std::map jumpservices = { + { "reg.i2p", "http://shx5vqsw7usdaunyzr2qmes2fq37oumybpudrd4jjj4e4vk4uusa.b32.i2p/jump/" }, + { "identiguy.i2p", "http://3mzmrus2oron5fxptw7hw2puho3bnqmw2hqy7nw64dsrrjwdilva.b32.i2p/cgi-bin/query?hostname=" }, + { "stats.i2p", "http://7tbay5p4kzeekxvyvbf6v7eauazemsnnl2aoyqhg5jzpr5eke7tq.b32.i2p/cgi-bin/jump.cgi?a=" }, + { "notbob.i2p", "http://nytzrhrjjfsutowojvxi7hphesskpqqr65wpistz6wa7cpajhp7a.b32.i2p/cgi-bin/jump.cgi?q=" } }; static const char *pageHead = "\r\n" + " \r\n" " I2Pd HTTP proxy\r\n" " \r\n" "\r\n" ; - bool str_rmatch(std::string & str, const char *suffix) { + static bool str_rmatch(std::string_view str, const char *suffix) + { auto pos = str.rfind (suffix); if (pos == std::string::npos) return false; /* not found */ @@ -54,28 +78,27 @@ namespace proxy { void HandleSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered); void Terminate(); void AsyncSockRead(); - bool ExtractAddressHelper(i2p::http::URL & url, std::string & b64, bool & confirm); - void SanitizeHTTPRequest(i2p::http::HTTPReq & req); + static bool ExtractAddressHelper(i2p::http::URL& url, std::string& jump, bool& confirm); + static bool VerifyAddressHelper (std::string_view jump); + void SanitizeHTTPRequest(i2p::http::HTTPReq& req); void SentHTTPFailed(const boost::system::error_code & ecode); void HandleStreamRequestComplete (std::shared_ptr stream); /* error helpers */ - void GenericProxyError(const char *title, const char *description); - void GenericProxyInfo(const char *title, const char *description); - void HostNotFound(std::string & host); - void SendProxyError(std::string & content); + void GenericProxyError(std::string_view title, std::string_view description); + void GenericProxyInfo(std::string_view title, std::string_view description); + void HostNotFound(std::string_view host); + void SendProxyError(std::string_view content); + void SendRedirect(const std::string& address); void ForwardToUpstreamProxy(); void HandleUpstreamHTTPProxyConnect(const boost::system::error_code & ec); void HandleUpstreamSocksProxyConnect(const boost::system::error_code & ec); - void HTTPConnect(const std::string & host, uint16_t port); + void HTTPConnect(std::string_view host, uint16_t port); void HandleHTTPConnectStreamRequestComplete(std::shared_ptr stream); - void HandleSocksProxySendHandshake(const boost::system::error_code & ec, std::size_t bytes_transfered); - void HandleSocksProxyReply(const boost::system::error_code & ec, std::size_t bytes_transfered); - typedef std::function ProxyResolvedHandler; - void HandleUpstreamProxyResolved(const boost::system::error_code & ecode, boost::asio::ip::tcp::resolver::iterator itr, ProxyResolvedHandler handler); + void HandleUpstreamProxyResolved(const boost::system::error_code & ecode, boost::asio::ip::tcp::resolver::results_type endpoints, ProxyResolvedHandler handler); void SocksProxySuccess(); void HandoverToUpstreamProxy(); @@ -86,12 +109,11 @@ namespace proxy { std::shared_ptr m_sock; std::shared_ptr m_proxysock; boost::asio::ip::tcp::resolver m_proxy_resolver; - std::string m_OutproxyUrl; - bool m_Addresshelper; + std::string m_OutproxyUrl, m_Response; + bool m_Addresshelper, m_SendUserAgent; i2p::http::URL m_ProxyURL; i2p::http::URL m_RequestURL; - uint8_t m_socks_buf[255+8]; // for socks request/response - ssize_t m_req_len; + int m_req_len; i2p::http::URL m_ClientRequestURL; i2p::http::HTTPReq m_ClientRequest; i2p::http::HTTPRes m_ClientResponse; @@ -104,16 +126,17 @@ namespace proxy { m_proxysock(std::make_shared(parent->GetService())), m_proxy_resolver(parent->GetService()), m_OutproxyUrl(parent->GetOutproxyURL()), - m_Addresshelper(parent->GetHelperSupport()) {} + m_Addresshelper(parent->GetHelperSupport()), + m_SendUserAgent (parent->GetSendUserAgent ()) {} ~HTTPReqHandler() { Terminate(); } void Handle () { AsyncSockRead(); } /* overload */ }; void HTTPReqHandler::AsyncSockRead() { - LogPrint(eLogDebug, "HTTPProxy: async sock read"); + LogPrint(eLogDebug, "HTTPProxy: Async sock read"); if (!m_sock) { - LogPrint(eLogError, "HTTPProxy: no socket for read"); + LogPrint(eLogError, "HTTPProxy: No socket for read"); return; } m_sock->async_read_some(boost::asio::buffer(m_recv_chunk, sizeof(m_recv_chunk)), @@ -125,13 +148,13 @@ namespace proxy { if (Kill()) return; if (m_sock) { - LogPrint(eLogDebug, "HTTPProxy: close sock"); + LogPrint(eLogDebug, "HTTPProxy: Close sock"); m_sock->close(); m_sock = nullptr; } if(m_proxysock) { - LogPrint(eLogDebug, "HTTPProxy: close proxysock"); + LogPrint(eLogDebug, "HTTPProxy: Close proxysock"); if(m_proxysock->is_open()) m_proxysock->close(); m_proxysock = nullptr; @@ -139,37 +162,40 @@ namespace proxy { Done(shared_from_this()); } - void HTTPReqHandler::GenericProxyError(const char *title, const char *description) { + void HTTPReqHandler::GenericProxyError(std::string_view title, std::string_view description) + { std::stringstream ss; - ss << "

Proxy error: " << title << "

\r\n"; + ss << "

" << tr("Proxy error") << ": " << title << "

\r\n"; ss << "

" << description << "

\r\n"; - std::string content = ss.str(); - SendProxyError(content); + SendProxyError(ss.str ()); } - void HTTPReqHandler::GenericProxyInfo(const char *title, const char *description) { + void HTTPReqHandler::GenericProxyInfo(std::string_view title, std::string_view description) + { std::stringstream ss; - ss << "

Proxy info: " << title << "

\r\n"; + ss << "

" << tr("Proxy info") << ": " << title << "

\r\n"; ss << "

" << description << "

\r\n"; - std::string content = ss.str(); - SendProxyError(content); + SendProxyError(ss.str ()); } - void HTTPReqHandler::HostNotFound(std::string & host) { + void HTTPReqHandler::HostNotFound(std::string_view host) + { std::stringstream ss; - ss << "

Proxy error: Host not found

\r\n" - << "

Remote host not found in router's addressbook

\r\n" - << "

You may try to find this host on jump services below:

\r\n" + ss << "

" << tr("Proxy error: Host not found") << "

\r\n" + << "

" << tr("Remote host not found in router's addressbook") << "

\r\n" + << "

" << tr("You may try to find this host on jump services below") << ":

\r\n" << "\r\n"; - std::string content = ss.str(); - SendProxyError(content); + SendProxyError(ss.str ()); } - void HTTPReqHandler::SendProxyError(std::string & content) + void HTTPReqHandler::SendProxyError(std::string_view content) { i2p::http::HTTPRes res; res.code = 500; @@ -180,12 +206,23 @@ namespace proxy { << "" << content << "\r\n" << "\r\n"; res.body = ss.str(); - std::string response = res.to_string(); - boost::asio::async_write(*m_sock, boost::asio::buffer(response), boost::asio::transfer_all(), - std::bind(&HTTPReqHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); + m_Response = res.to_string(); + boost::asio::async_write(*m_sock, boost::asio::buffer(m_Response), boost::asio::transfer_all(), + std::bind(&HTTPReqHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); } - bool HTTPReqHandler::ExtractAddressHelper(i2p::http::URL & url, std::string & b64, bool & confirm) + void HTTPReqHandler::SendRedirect(const std::string& address) + { + i2p::http::HTTPRes res; + res.code = 302; + res.add_header("Location", address); + res.add_header("Connection", "close"); + m_Response = res.to_string(); + boost::asio::async_write(*m_sock, boost::asio::buffer(m_Response), boost::asio::transfer_all(), + std::bind(&HTTPReqHandler::SentHTTPFailed, shared_from_this(), std::placeholders::_1)); + } + + bool HTTPReqHandler::ExtractAddressHelper(i2p::http::URL& url, std::string& jump, bool& confirm) { confirm = false; const char *param = "i2paddresshelper="; @@ -201,26 +238,110 @@ namespace proxy { std::string value = params["i2paddresshelper"]; len += value.length(); - b64 = i2p::http::UrlDecode(value); + jump = i2p::http::UrlDecode(value); + if (!VerifyAddressHelper (jump)) + { + LogPrint (eLogError, "HTTPProxy: Malformed jump link ", jump); + return false; + } + // if we need update exists, request formed with update param - if (params["update"] == "true") { len += std::strlen("&update=true"); confirm = true; } + if (params["update"] == "true") + { + len += std::strlen("&update=true"); + confirm = true; + } + + // if helper is not only one query option and it placed after user's query + if (pos != 0 && url.query[pos-1] == '&') + { + pos--; + len++; + } + // if helper is not only one query option and it placed before user's query + else if (pos == 0 && url.query.length () > len && url.query[len] == '&') + { + // we don't touch the '?' but remove the trailing '&' + len++; + } + else + { + // there is no more query options, resetting hasquery flag + url.hasquery = false; + } + + // reset hasquery flag and remove addresshelper from URL url.query.replace(pos, len, ""); return true; } - void HTTPReqHandler::SanitizeHTTPRequest(i2p::http::HTTPReq & req) + bool HTTPReqHandler::VerifyAddressHelper (std::string_view jump) + { + auto pos = jump.find(".b32.i2p"); + if (pos != std::string::npos) + { + auto b32 = jump.substr (0, pos); + for (auto& ch: b32) + if (!i2p::data::IsBase32(ch)) return false; + return true; + } + else + { + bool padding = false; + for (auto& ch: jump) + { + if (ch == '=') + padding = true; + else + { + if (padding) return false; // other chars after padding + if (!i2p::data::IsBase64(ch)) return false; + } + } + return true; + } + return false; + } + + void HTTPReqHandler::SanitizeHTTPRequest(i2p::http::HTTPReq& req) { /* drop common headers */ - req.RemoveHeader("Referrer"); req.RemoveHeader("Via"); req.RemoveHeader("From"); req.RemoveHeader("Forwarded"); + req.RemoveHeader("DNT"); // Useless DoNotTrack flag req.RemoveHeader("Accept", "Accept-Encoding"); // Accept*, but Accept-Encoding /* drop proxy-disclosing headers */ req.RemoveHeader("X-Forwarded"); - req.RemoveHeader("Proxy-"); // Proxy-* + req.RemoveHeader("Proxy-"); // Proxy-* /* replace headers */ - req.UpdateHeader("User-Agent", "MYOB/6.66 (AN/ON)"); + if (!m_SendUserAgent) + req.UpdateHeader("User-Agent", "MYOB/6.66 (AN/ON)"); + + /** + * i2pd PR #1816: + * Android Webview send this with the value set to the application ID, so we drop it, + * but only if it does not belong to an AJAX request (*HttpRequest, like XMLHttpRequest). + */ + if(req.GetHeader("X-Requested-With") != "") { + auto h = req.GetHeader ("X-Requested-With"); + auto x = h.find("HttpRequest"); + if (x == std::string::npos) // not found + req.RemoveHeader("X-Requested-With"); + } + + /** + * according to i2p ticket #1862: + * leave Referer if requested URL with same schema, host and port, + * otherwise, drop it. + */ + if(req.GetHeader("Referer") != "") { + i2p::http::URL reqURL; reqURL.parse(req.uri); + i2p::http::URL refURL; refURL.parse(req.GetHeader("Referer")); + if(!boost::iequals(reqURL.schema, refURL.schema) || !boost::iequals(reqURL.host, refURL.host) || reqURL.port != refURL.port) + req.RemoveHeader("Referer"); + } + /* add headers */ /* close connection, if not Connection: (U|u)pgrade (for websocket) */ auto h = req.GetHeader ("Connection"); @@ -243,42 +364,79 @@ namespace proxy { return false; /* need more data */ if (m_req_len < 0) { - LogPrint(eLogError, "HTTPProxy: unable to parse request"); - GenericProxyError("Invalid request", "Proxy unable to parse your request"); + LogPrint(eLogError, "HTTPProxy: Unable to parse request"); + GenericProxyError(tr("Invalid request"), tr("Proxy unable to parse your request")); return true; /* parse error */ } /* parsing success, now let's look inside request */ - LogPrint(eLogDebug, "HTTPProxy: requested: ", m_ClientRequest.uri); + LogPrint(eLogDebug, "HTTPProxy: Requested: ", m_ClientRequest.uri); m_RequestURL.parse(m_ClientRequest.uri); bool m_Confirm; std::string jump; if (ExtractAddressHelper(m_RequestURL, jump, m_Confirm)) { - if (!m_Addresshelper) + if (!m_Addresshelper || !i2p::client::context.GetAddressBook ().IsEnabled ()) { - LogPrint(eLogWarning, "HTTPProxy: addresshelper request rejected"); - GenericProxyError("Invalid request", "addresshelper is not supported"); + LogPrint(eLogWarning, "HTTPProxy: Addresshelper request rejected"); + GenericProxyError(tr("Invalid request"), tr("Addresshelper is not supported")); return true; } - if (!i2p::client::context.GetAddressBook ().FindAddress (m_RequestURL.host) || m_Confirm) + + if (i2p::client::context.GetAddressBook ().RecordExists (m_RequestURL.host, jump)) { + std::string full_url = m_RequestURL.to_string(); + SendRedirect(full_url); + return true; + } + else if (!i2p::client::context.GetAddressBook ().FindAddress (m_RequestURL.host) || m_Confirm) + { + const std::string referer_raw = m_ClientRequest.GetHeader("Referer"); + i2p::http::URL referer_url; + if (!referer_raw.empty ()) + { + referer_url.parse (referer_raw); + } + if (m_RequestURL.host != referer_url.host) + { + if (m_Confirm) // Attempt to forced overwriting by link with "&update=true" from harmful URL + { + LogPrint (eLogWarning, "HTTPProxy: Address update from addresshelper rejected for ", m_RequestURL.host, " (referer is ", m_RequestURL.host.empty() ? "empty" : "harmful", ")"); + std::string full_url = m_RequestURL.to_string(); + std::stringstream ss; + ss << tr("Host %s is already in router's addressbook. Be careful: source of this URL may be harmful! Click here to update record: Continue.", + m_RequestURL.host.c_str(), full_url.c_str(), (full_url.find('?') != std::string::npos ? "&i2paddresshelper=" : "?i2paddresshelper="), jump.c_str()); + GenericProxyInfo(tr("Addresshelper forced update rejected"), ss.str()); + } + else // Preventing unauthorized additions to the address book + { + LogPrint (eLogDebug, "HTTPProxy: Adding address from addresshelper for ", m_RequestURL.host, " (generate refer-base page)"); + std::string full_url = m_RequestURL.to_string(); + std::stringstream ss; + ss << tr("To add host %s in router's addressbook, click here: Continue.", + m_RequestURL.host.c_str(), full_url.c_str(), (full_url.find('?') != std::string::npos ? "&i2paddresshelper=" : "?i2paddresshelper="), jump.c_str()); + GenericProxyInfo(tr("Addresshelper request"), ss.str()); + } + return true; /* request processed */ + } + i2p::client::context.GetAddressBook ().InsertAddress (m_RequestURL.host, jump); - LogPrint (eLogInfo, "HTTPProxy: added address from addresshelper for ", m_RequestURL.host); + LogPrint (eLogInfo, "HTTPProxy: Added address from addresshelper for ", m_RequestURL.host); std::string full_url = m_RequestURL.to_string(); std::stringstream ss; - ss << "Host " << m_RequestURL.host << " added to router's addressbook from helper. " - << "Click here to proceed."; - GenericProxyInfo("Addresshelper found", ss.str().c_str()); + ss << tr("Host %s added to router's addressbook from helper. Click here to proceed: Continue.", + m_RequestURL.host.c_str(), full_url.c_str()); + GenericProxyInfo(tr("Addresshelper adding"), ss.str()); return true; /* request processed */ } else { + std::string full_url = m_RequestURL.to_string(); std::stringstream ss; - ss << "Host " << m_RequestURL.host << " already in router's addressbook. " - << "Click here to update record."; - GenericProxyInfo("Addresshelper found", ss.str().c_str()); + ss << tr("Host %s is already in router's addressbook. Click here to update record: Continue.", + m_RequestURL.host.c_str(), full_url.c_str(), (full_url.find('?') != std::string::npos ? "&i2paddresshelper=" : "?i2paddresshelper="), jump.c_str()); + GenericProxyInfo(tr("Addresshelper update"), ss.str()); return true; /* request processed */ } } @@ -287,11 +445,11 @@ namespace proxy { bool useConnect = false; if(m_ClientRequest.method == "CONNECT") { - std::string uri(m_ClientRequest.uri); + const std::string& uri = m_ClientRequest.uri; auto pos = uri.find(":"); if(pos == std::string::npos || pos == uri.size() - 1) { - GenericProxyError("Invalid Request", "invalid request uri"); + GenericProxyError(tr("Invalid request"), tr("Invalid request URI")); return true; } else @@ -314,7 +472,7 @@ namespace proxy { if (dest_host != "") { /* absolute url, replace 'Host' header */ - std::string h = dest_host; + std::string h (dest_host); if (dest_port != 0 && dest_port != 80) h += ":" + std::to_string(dest_port); m_ClientRequest.UpdateHeader("Host", h); @@ -334,7 +492,7 @@ namespace proxy { else { /* relative url and missing 'Host' header */ - GenericProxyError("Invalid request", "Can't detect destination host from request"); + GenericProxyError(tr("Invalid request"), tr("Can't detect destination host from request")); return true; } } @@ -347,15 +505,15 @@ namespace proxy { } } else { if(m_OutproxyUrl.size()) { - LogPrint (eLogDebug, "HTTPProxy: use outproxy ", m_OutproxyUrl); + LogPrint (eLogDebug, "HTTPProxy: Using outproxy ", m_OutproxyUrl); if(m_ProxyURL.parse(m_OutproxyUrl)) ForwardToUpstreamProxy(); else - GenericProxyError("Outproxy failure", "bad outproxy settings"); + GenericProxyError(tr("Outproxy failure"), tr("Bad outproxy settings")); } else { - LogPrint (eLogWarning, "HTTPProxy: outproxy failure for ", dest_host, ": no outproxy enabled"); - std::string message = "Host " + dest_host + " not inside I2P network, but outproxy is not enabled"; - GenericProxyError("Outproxy failure", message.c_str()); + LogPrint (eLogWarning, "HTTPProxy: Outproxy failure for ", dest_host, ": no outproxy enabled"); + std::stringstream ss; ss << tr("Host %s is not inside I2P network, but outproxy is not enabled", dest_host.c_str ()); + GenericProxyError(tr("Outproxy failure"), ss.str()); } return true; } @@ -376,7 +534,7 @@ namespace proxy { m_send_buf = m_ClientRequest.to_string(); m_send_buf.append(m_recv_buf); /* connect to destination */ - LogPrint(eLogDebug, "HTTPProxy: connecting to host ", dest_host, ":", dest_port); + LogPrint(eLogDebug, "HTTPProxy: Connecting to host ", dest_host, ":", dest_port); GetOwner()->CreateStream (std::bind (&HTTPReqHandler::HandleStreamRequestComplete, shared_from_this(), std::placeholders::_1), dest_host, dest_port); return true; @@ -384,9 +542,9 @@ namespace proxy { void HTTPReqHandler::ForwardToUpstreamProxy() { - LogPrint(eLogDebug, "HTTPProxy: forward to upstream"); - // build http requset + LogPrint(eLogDebug, "HTTPProxy: Forwarded to upstream"); + /* build http request */ m_ClientRequestURL = m_RequestURL; LogPrint(eLogDebug, "HTTPProxy: ", m_ClientRequestURL.host); m_ClientRequestURL.schema = ""; @@ -394,28 +552,28 @@ namespace proxy { std::string origURI = m_ClientRequest.uri; // TODO: what do we need to change uri for? m_ClientRequest.uri = m_ClientRequestURL.to_string(); - // update User-Agent to ESR version of Firefox, same as Tor Browser below version 8, for non-HTTPS connections - if(m_ClientRequest.method != "CONNECT") - m_ClientRequest.UpdateHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0"); + /* update User-Agent to ESR version of Firefox, same as Tor Browser below version 13, for non-HTTPS connections */ + if(m_ClientRequest.method != "CONNECT" && !m_SendUserAgent) + m_ClientRequest.UpdateHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0"); m_ClientRequest.write(m_ClientRequestBuffer); m_ClientRequestBuffer << m_recv_buf.substr(m_req_len); - // assume http if empty schema + /* assume http if empty schema */ if (m_ProxyURL.schema == "" || m_ProxyURL.schema == "http") { - // handle upstream http proxy + /* handle upstream http proxy */ if (!m_ProxyURL.port) m_ProxyURL.port = 80; if (m_ProxyURL.is_i2p()) { m_ClientRequest.uri = origURI; - if (!m_ProxyURL.user.empty () || !m_ProxyURL.pass.empty ()) + auto auth = i2p::http::CreateBasicAuthorizationString (m_ProxyURL.user, m_ProxyURL.pass); + if (!auth.empty ()) { - // remove existing authorization if any + /* remove existing authorization if any */ m_ClientRequest.RemoveHeader("Proxy-"); - // add own http proxy authorization - std::string s = "Basic " + i2p::data::ToBase64Standard (m_ProxyURL.user + ":" + m_ProxyURL.pass); - m_ClientRequest.AddHeader("Proxy-Authorization", s); + /* add own http proxy authorization */ + m_ClientRequest.AddHeader("Proxy-Authorization", auth); } m_send_buf = m_ClientRequest.to_string(); m_recv_buf.erase(0, m_req_len); @@ -425,79 +583,68 @@ namespace proxy { } else { - boost::asio::ip::tcp::resolver::query q(m_ProxyURL.host, std::to_string(m_ProxyURL.port)); - m_proxy_resolver.async_resolve(q, std::bind(&HTTPReqHandler::HandleUpstreamProxyResolved, this, std::placeholders::_1, std::placeholders::_2, [&](boost::asio::ip::tcp::endpoint ep) { - m_proxysock->async_connect(ep, std::bind(&HTTPReqHandler::HandleUpstreamHTTPProxyConnect, this, std::placeholders::_1)); - })); + m_proxy_resolver.async_resolve(m_ProxyURL.host, std::to_string(m_ProxyURL.port), std::bind(&HTTPReqHandler::HandleUpstreamProxyResolved, this, + std::placeholders::_1, std::placeholders::_2, [&](boost::asio::ip::tcp::endpoint ep) + { + m_proxysock->async_connect(ep, std::bind(&HTTPReqHandler::HandleUpstreamHTTPProxyConnect, this, std::placeholders::_1)); + })); } } else if (m_ProxyURL.schema == "socks") { - // handle upstream socks proxy + /* handle upstream socks proxy */ if (!m_ProxyURL.port) m_ProxyURL.port = 9050; // default to tor default if not specified - boost::asio::ip::tcp::resolver::query q(m_ProxyURL.host, std::to_string(m_ProxyURL.port)); - m_proxy_resolver.async_resolve(q, std::bind(&HTTPReqHandler::HandleUpstreamProxyResolved, this, std::placeholders::_1, std::placeholders::_2, [&](boost::asio::ip::tcp::endpoint ep) { - m_proxysock->async_connect(ep, std::bind(&HTTPReqHandler::HandleUpstreamSocksProxyConnect, this, std::placeholders::_1)); - })); + m_proxy_resolver.async_resolve(m_ProxyURL.host, std::to_string(m_ProxyURL.port), std::bind(&HTTPReqHandler::HandleUpstreamProxyResolved, this, + std::placeholders::_1, std::placeholders::_2, [&](boost::asio::ip::tcp::endpoint ep) + { + m_proxysock->async_connect(ep, std::bind(&HTTPReqHandler::HandleUpstreamSocksProxyConnect, this, std::placeholders::_1)); + })); } else { - // unknown type, complain - GenericProxyError("unknown outproxy url", m_ProxyURL.to_string().c_str()); + /* unknown type, complain */ + GenericProxyError(tr("Unknown outproxy URL"), m_ProxyURL.to_string()); } } - void HTTPReqHandler::HandleUpstreamProxyResolved(const boost::system::error_code & ec, boost::asio::ip::tcp::resolver::iterator it, ProxyResolvedHandler handler) + void HTTPReqHandler::HandleUpstreamProxyResolved(const boost::system::error_code & ec, boost::asio::ip::tcp::resolver::results_type endpoints, ProxyResolvedHandler handler) { - if(ec) GenericProxyError("cannot resolve upstream proxy", ec.message().c_str()); - else handler(*it); + if(ec) GenericProxyError(tr("Cannot resolve upstream proxy"), ec.message()); + else handler(*endpoints.begin ()); } void HTTPReqHandler::HandleUpstreamSocksProxyConnect(const boost::system::error_code & ec) { - if(!ec) { - if(m_RequestURL.host.size() > 255) { - GenericProxyError("hostname too long", m_RequestURL.host.c_str()); + if(!ec) + { + if(m_RequestURL.host.size() > 255) + { + GenericProxyError(tr("Hostname is too long"), m_RequestURL.host); return; } uint16_t port = m_RequestURL.port; if(!port) port = 80; - LogPrint(eLogDebug, "HTTPProxy: connected to socks upstream"); - + LogPrint(eLogDebug, "HTTPProxy: Connected to SOCKS upstream"); std::string host = m_RequestURL.host; - std::size_t reqsize = 0; - m_socks_buf[0] = '\x04'; - m_socks_buf[1] = 1; - htobe16buf(m_socks_buf+2, port); - m_socks_buf[4] = 0; - m_socks_buf[5] = 0; - m_socks_buf[6] = 0; - m_socks_buf[7] = 1; - // user id - m_socks_buf[8] = 'i'; - m_socks_buf[9] = '2'; - m_socks_buf[10] = 'p'; - m_socks_buf[11] = 'd'; - m_socks_buf[12] = 0; - reqsize += 13; - memcpy(m_socks_buf+ reqsize, host.c_str(), host.size()); - reqsize += host.size(); - m_socks_buf[++reqsize] = 0; - boost::asio::async_write(*m_proxysock, boost::asio::buffer(m_socks_buf, reqsize), boost::asio::transfer_all(), std::bind(&HTTPReqHandler::HandleSocksProxySendHandshake, this, std::placeholders::_1, std::placeholders::_2)); - } else GenericProxyError("cannot connect to upstream socks proxy", ec.message().c_str()); - } - - void HTTPReqHandler::HandleSocksProxySendHandshake(const boost::system::error_code & ec, std::size_t bytes_transferred) - { - LogPrint(eLogDebug, "HTTPProxy: upstream socks handshake sent"); - if(ec) GenericProxyError("Cannot negotiate with socks proxy", ec.message().c_str()); - else m_proxysock->async_read_some(boost::asio::buffer(m_socks_buf, 8), std::bind(&HTTPReqHandler::HandleSocksProxyReply, this, std::placeholders::_1, std::placeholders::_2)); + auto s = shared_from_this (); + i2p::transport::Socks5Handshake (*m_proxysock, std::make_pair(host, port), + [s](const boost::system::error_code& ec) + { + if (!ec) + s->SocksProxySuccess(); + else + s->GenericProxyError(tr("SOCKS proxy error"), ec.message ()); + }); + + } + else + GenericProxyError(tr("Cannot connect to upstream SOCKS proxy"), ec.message()); } void HTTPReqHandler::HandoverToUpstreamProxy() { - LogPrint(eLogDebug, "HTTPProxy: handover to socks proxy"); - auto connection = std::make_shared(GetOwner(), m_proxysock, m_sock); + LogPrint(eLogDebug, "HTTPProxy: Handover to SOCKS proxy"); + auto connection = CreateSocketsPipe (GetOwner(), m_proxysock, m_sock); m_sock = nullptr; m_proxysock = nullptr; GetOwner()->AddHandler(connection); @@ -505,11 +652,10 @@ namespace proxy { Terminate(); } - void HTTPReqHandler::HTTPConnect(const std::string & host, uint16_t port) + void HTTPReqHandler::HTTPConnect(std::string_view host, uint16_t port) { LogPrint(eLogDebug, "HTTPProxy: CONNECT ",host, ":", port); - std::string hostname(host); - if(str_rmatch(hostname, ".i2p")) + if(str_rmatch(host, ".i2p")) GetOwner()->CreateStream (std::bind (&HTTPReqHandler::HandleHTTPConnectStreamRequestComplete, shared_from_this(), std::placeholders::_1), host, port); else @@ -532,7 +678,7 @@ namespace proxy { } else { - GenericProxyError("CONNECT error", "Failed to Connect"); + GenericProxyError(tr("CONNECT error"), tr("Failed to connect")); } } @@ -541,53 +687,37 @@ namespace proxy { if(m_ClientRequest.method == "CONNECT") { m_ClientResponse.code = 200; m_send_buf = m_ClientResponse.to_string(); - boost::asio::async_write(*m_sock, boost::asio::buffer(m_send_buf), boost::asio::transfer_all(), [&] (const boost::system::error_code & ec, std::size_t transferred) { - if(ec) GenericProxyError("socks proxy error", ec.message().c_str()); + boost::asio::async_write(*m_sock, boost::asio::buffer(m_send_buf), boost::asio::transfer_all(), [&] (const boost::system::error_code & ec, std::size_t transferred) + { + if(ec) GenericProxyError(tr("SOCKS proxy error"), ec.message()); else HandoverToUpstreamProxy(); }); } else { m_send_buf = m_ClientRequestBuffer.str(); - LogPrint(eLogDebug, "HTTPProxy: send ", m_send_buf.size(), " bytes"); - boost::asio::async_write(*m_proxysock, boost::asio::buffer(m_send_buf), boost::asio::transfer_all(), [&](const boost::system::error_code & ec, std::size_t transferred) { - if(ec) GenericProxyError("failed to send request to upstream", ec.message().c_str()); + LogPrint(eLogDebug, "HTTPProxy: Send ", m_send_buf.size(), " bytes"); + boost::asio::async_write(*m_proxysock, boost::asio::buffer(m_send_buf), boost::asio::transfer_all(), [&](const boost::system::error_code & ec, std::size_t transferred) + { + if(ec) GenericProxyError(tr("Failed to send request to upstream"), ec.message()); else HandoverToUpstreamProxy(); }); } } - void HTTPReqHandler::HandleSocksProxyReply(const boost::system::error_code & ec, std::size_t bytes_transferred) - { - if(!ec) - { - if(m_socks_buf[1] == 90) { - // success - SocksProxySuccess(); - } else { - std::stringstream ss; - ss << "error code: "; - ss << (int) m_socks_buf[1]; - std::string msg = ss.str(); - GenericProxyError("Socks Proxy error", msg.c_str()); - } - } - else GenericProxyError("No Reply From socks proxy", ec.message().c_str()); - } - void HTTPReqHandler::HandleUpstreamHTTPProxyConnect(const boost::system::error_code & ec) { if(!ec) { - LogPrint(eLogDebug, "HTTPProxy: connected to http upstream"); - GenericProxyError("cannot connect", "http out proxy not implemented"); - } else GenericProxyError("cannot connect to upstream http proxy", ec.message().c_str()); + LogPrint(eLogDebug, "HTTPProxy: Connected to http upstream"); + GenericProxyError(tr("Cannot connect"), tr("HTTP out proxy not implemented")); + } else GenericProxyError(tr("Cannot connect to upstream HTTP proxy"), ec.message()); } /* will be called after some data received from client */ void HTTPReqHandler::HandleSockRecv(const boost::system::error_code & ecode, std::size_t len) { - LogPrint(eLogDebug, "HTTPProxy: sock recv: ", len, " bytes, recv buf: ", m_recv_buf.length(), ", send buf: ", m_send_buf.length()); + LogPrint(eLogDebug, "HTTPProxy: Sock recv: ", len, " bytes, recv buf: ", m_recv_buf.length(), ", send buf: ", m_send_buf.length()); if(ecode) { - LogPrint(eLogWarning, "HTTPProxy: sock recv got error: ", ecode); + LogPrint(eLogWarning, "HTTPProxy: Sock recv got error: ", ecode); Terminate(); return; } @@ -610,8 +740,8 @@ namespace proxy { void HTTPReqHandler::HandleStreamRequestComplete (std::shared_ptr stream) { if (!stream) { - LogPrint (eLogError, "HTTPProxy: error when creating the stream, check the previous warnings for more info"); - GenericProxyError("Host is down", "Can't create connection to requested host, it may be down. Please try again later."); + LogPrint (eLogError, "HTTPProxy: Error when creating the stream, check the previous warnings for more info"); + GenericProxyError(tr("Host is down"), tr("Can't create connection to requested host, it may be down. Please try again later.")); return; } if (Kill()) @@ -623,9 +753,10 @@ namespace proxy { Done (shared_from_this()); } - HTTPProxy::HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, bool addresshelper, std::shared_ptr localDestination): + HTTPProxy::HTTPProxy(const std::string& name, const std::string& address, uint16_t port, + const std::string & outproxy, bool addresshelper, bool senduseragent, std::shared_ptr localDestination): TCPIPAcceptor (address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()), - m_Name (name), m_OutproxyUrl (outproxy), m_Addresshelper (addresshelper) + m_Name (name), m_OutproxyUrl (outproxy), m_Addresshelper (addresshelper), m_SendUserAgent (senduseragent) { } diff --git a/libi2pd_client/HTTPProxy.h b/libi2pd_client/HTTPProxy.h index 590166e3..507a87e2 100644 --- a/libi2pd_client/HTTPProxy.h +++ b/libi2pd_client/HTTPProxy.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef HTTP_PROXY_H__ #define HTTP_PROXY_H__ @@ -6,23 +14,28 @@ namespace proxy { class HTTPProxy: public i2p::client::TCPIPAcceptor { public: - HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, bool addresshelper, std::shared_ptr localDestination); - HTTPProxy(const std::string& name, const std::string& address, int port, std::shared_ptr localDestination = nullptr) : - HTTPProxy(name, address, port, "", true, localDestination) {} ; + + HTTPProxy(const std::string& name, const std::string& address, uint16_t port, const std::string & outproxy, + bool addresshelper, bool senduseragent, std::shared_ptr localDestination); + HTTPProxy(const std::string& name, const std::string& address, uint16_t port, std::shared_ptr localDestination = nullptr) : + HTTPProxy(name, address, port, "", true, false, localDestination) {} ; ~HTTPProxy() {}; std::string GetOutproxyURL() const { return m_OutproxyUrl; } - bool GetHelperSupport() { return m_Addresshelper; } + bool GetHelperSupport() const { return m_Addresshelper; } + bool GetSendUserAgent () const { return m_SendUserAgent; } protected: + // Implements TCPIPAcceptor std::shared_ptr CreateHandler(std::shared_ptr socket); const char* GetName() { return m_Name.c_str (); } private: + std::string m_Name; std::string m_OutproxyUrl; - bool m_Addresshelper; + bool m_Addresshelper, m_SendUserAgent; }; } // http } // i2p diff --git a/libi2pd_client/I2CP.cpp b/libi2pd_client/I2CP.cpp index 78190c89..11278e7a 100644 --- a/libi2pd_client/I2CP.cpp +++ b/libi2pd_client/I2CP.cpp @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2019, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -16,6 +16,7 @@ #include "ClientContext.h" #include "Transports.h" #include "Signature.h" +#include "Config.h" #include "I2CP.h" namespace i2p @@ -23,46 +24,136 @@ namespace i2p namespace client { - I2CPDestination::I2CPDestination (std::shared_ptr owner, std::shared_ptr identity, bool isPublic, const std::map& params): - LeaseSetDestination (isPublic, ¶ms), m_Owner (owner), m_Identity (identity) + I2CPDestination::I2CPDestination (boost::asio::io_context& service, std::shared_ptr owner, + std::shared_ptr identity, bool isPublic, bool isSameThread, + const std::map& params): + LeaseSetDestination (service, isPublic, ¶ms), + m_Owner (owner), m_Identity (identity), m_EncryptionKeyType (m_Identity->GetCryptoKeyType ()), + m_IsCreatingLeaseSet (false), m_IsSameThread (isSameThread), + m_LeaseSetCreationTimer (service), m_ReadinessCheckTimer (service) { } + void I2CPDestination::Stop () + { + m_LeaseSetCreationTimer.cancel (); + m_ReadinessCheckTimer.cancel (); + LeaseSetDestination::Stop (); + m_Owner = nullptr; + } + void I2CPDestination::SetEncryptionPrivateKey (const uint8_t * key) { - memcpy (m_EncryptionPrivateKey, key, 256); - m_Decryptor = i2p::data::PrivateKeys::CreateDecryptor (m_Identity->GetCryptoKeyType (), m_EncryptionPrivateKey); + m_Decryptor = i2p::data::PrivateKeys::CreateDecryptor (m_Identity->GetCryptoKeyType (), key); } - bool I2CPDestination::Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const + void I2CPDestination::SetECIESx25519EncryptionPrivateKey (const uint8_t * key) { + if (!m_ECIESx25519Decryptor || memcmp (m_ECIESx25519PrivateKey, key, 32)) // new key? + { + m_ECIESx25519Decryptor = std::make_shared(key, true); // calculate public + memcpy (m_ECIESx25519PrivateKey, key, 32); + } + } + + bool I2CPDestination::Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const + { + if (preferredCrypto == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD && m_ECIESx25519Decryptor) + return m_ECIESx25519Decryptor->Decrypt (encrypted, data); if (m_Decryptor) - return m_Decryptor->Decrypt (encrypted, data, ctx, true); + return m_Decryptor->Decrypt (encrypted, data); else - LogPrint (eLogError, "I2CP: decryptor is not set"); + LogPrint (eLogError, "I2CP: Decryptor is not set"); return false; } + const uint8_t * I2CPDestination::GetEncryptionPublicKey (i2p::data::CryptoKeyType keyType) const + { + if (keyType == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD && m_ECIESx25519Decryptor) + return m_ECIESx25519Decryptor->GetPubicKey (); + return nullptr; + } + + bool I2CPDestination::SupportsEncryptionType (i2p::data::CryptoKeyType keyType) const + { + return keyType == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD ? (bool)m_ECIESx25519Decryptor : m_EncryptionKeyType == keyType; + } + + i2p::data::CryptoKeyType I2CPDestination::GetPreferredCryptoType () const + { + if (m_ECIESx25519Decryptor) + return i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD; + return i2p::data::CRYPTO_KEY_TYPE_ELGAMAL; + } + void I2CPDestination::HandleDataMessage (const uint8_t * buf, size_t len) { uint32_t length = bufbe32toh (buf); if (length > len - 4) length = len - 4; - m_Owner->SendMessagePayloadMessage (buf + 4, length); + if (m_Owner) + m_Owner->SendMessagePayloadMessage (buf + 4, length); } - void I2CPDestination::CreateNewLeaseSet (std::vector > tunnels) + void I2CPDestination::CreateNewLeaseSet (const std::vector >& tunnels) { - i2p::data::LocalLeaseSet ls (m_Identity, m_EncryptionPrivateKey, tunnels); // we don't care about encryption key + boost::asio::post (GetService (), std::bind (&I2CPDestination::PostCreateNewLeaseSet, GetSharedFromThis (), tunnels)); + } + + void I2CPDestination::PostCreateNewLeaseSet (std::vector > tunnels) + { + if (m_IsCreatingLeaseSet) + { + LogPrint (eLogInfo, "I2CP: LeaseSet is being created"); + return; + } + m_ReadinessCheckTimer.cancel (); + auto pool = GetTunnelPool (); + if (!pool || pool->GetOutboundTunnels ().empty ()) + { + // try again later + m_ReadinessCheckTimer.expires_from_now (boost::posix_time::seconds(I2CP_DESTINATION_READINESS_CHECK_INTERVAL)); + m_ReadinessCheckTimer.async_wait( + [s=GetSharedFromThis (), tunnels=std::move(tunnels)](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + s->PostCreateNewLeaseSet (tunnels); + }); + return; + } + uint8_t priv[256] = {0}; + i2p::data::LocalLeaseSet ls (m_Identity, priv, tunnels); // we don't care about encryption key, we need leases only m_LeaseSetExpirationTime = ls.GetExpirationTime (); uint8_t * leases = ls.GetLeases (); - leases[-1] = tunnels.size (); - htobe16buf (leases - 3, m_Owner->GetSessionID ()); - size_t l = 2/*sessionID*/ + 1/*num leases*/ + i2p::data::LEASE_SIZE*tunnels.size (); - m_Owner->SendI2CPMessage (I2CP_REQUEST_VARIABLE_LEASESET_MESSAGE, leases - 3, l); + int numLeases = leases[-1]; + if (m_Owner && numLeases) + { + uint16_t sessionID = m_Owner->GetSessionID (); + if (sessionID != 0xFFFF) + { + m_IsCreatingLeaseSet = true; + htobe16buf (leases - 3, sessionID); + size_t l = 2/*sessionID*/ + 1/*num leases*/ + i2p::data::LEASE_SIZE*numLeases; + m_Owner->SendI2CPMessage (I2CP_REQUEST_VARIABLE_LEASESET_MESSAGE, leases - 3, l); + m_LeaseSetCreationTimer.expires_from_now (boost::posix_time::seconds (I2CP_LEASESET_CREATION_TIMEOUT)); + auto s = GetSharedFromThis (); + m_LeaseSetCreationTimer.async_wait ([s](const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + LogPrint (eLogInfo, "I2CP: LeaseSet creation timeout expired. Terminate"); + if (s->m_Owner) s->m_Owner->Stop (); + } + }); + } + } + else + LogPrint (eLogError, "I2CP: Can't request LeaseSet"); } void I2CPDestination::LeaseSetCreated (const uint8_t * buf, size_t len) { + m_IsCreatingLeaseSet = false; + m_LeaseSetCreationTimer.cancel (); auto ls = std::make_shared (m_Identity, buf, len); ls->SetExpirationTime (m_LeaseSetExpirationTime); SetLeaseSet (ls); @@ -70,43 +161,59 @@ namespace client void I2CPDestination::LeaseSet2Created (uint8_t storeType, const uint8_t * buf, size_t len) { + m_IsCreatingLeaseSet = false; + m_LeaseSetCreationTimer.cancel (); auto ls = (storeType == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) ? std::make_shared (m_Identity, buf, len): std::make_shared (storeType, m_Identity, buf, len); - ls->SetExpirationTime (m_LeaseSetExpirationTime); + ls->SetExpirationTime (m_LeaseSetExpirationTime); SetLeaseSet (ls); } void I2CPDestination::SendMsgTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash& ident, uint32_t nonce) { - auto msg = NewI2NPMessage (); + auto msg = m_I2NPMsgsPool.AcquireSharedMt (); uint8_t * buf = msg->GetPayload (); htobe32buf (buf, len); memcpy (buf + 4, payload, len); msg->len += len + 4; msg->FillI2NPMessageHeader (eI2NPData); - auto s = GetSharedFromThis (); auto remote = FindLeaseSet (ident); if (remote) { - GetService ().post ( - [s, msg, remote, nonce]() - { - bool sent = s->SendMsg (msg, remote); - s->m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); - }); + if (m_IsSameThread) + { + // send right a way + bool sent = SendMsg (msg, remote); + if (m_Owner) + m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); + } + else + { + // send in destination's thread + auto s = GetSharedFromThis (); + boost::asio::post (GetService (), + [s, msg, remote, nonce]() + { + bool sent = s->SendMsg (msg, remote); + if (s->m_Owner) + s->m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); + }); + } } else { + auto s = GetSharedFromThis (); RequestDestination (ident, [s, msg, nonce](std::shared_ptr ls) { if (ls) { bool sent = s->SendMsg (msg, ls); - s->m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); + if (s->m_Owner) + s->m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); } - else + else if (s->m_Owner) s->m_Owner->SendMessageStatusMessage (nonce, eI2CPMessageStatusNoLeaseSet); }); } @@ -120,6 +227,7 @@ namespace client LogPrint (eLogError, "I2CP: Failed to create remote session"); return false; } + auto garlic = remoteSession->WrapSingleMessage (msg); // shared routing path mitgh be dropped here auto path = remoteSession->GetSharedRoutingPath (); std::shared_ptr outboundTunnel; std::shared_ptr remoteLease; @@ -133,29 +241,43 @@ namespace client else remoteSession->SetSharedRoutingPath (nullptr); } - else + if (!outboundTunnel || !remoteLease) { - outboundTunnel = GetTunnelPool ()->GetNextOutboundTunnel (); - auto leases = remote->GetNonExpiredLeases (); + auto leases = remote->GetNonExpiredLeases (false); // without threshold + if (leases.empty ()) + leases = remote->GetNonExpiredLeases (true); // with threshold if (!leases.empty ()) - remoteLease = leases[rand () % leases.size ()]; + { + auto pool = GetTunnelPool (); + remoteLease = leases[(pool ? pool->GetRng ()() : rand ()) % leases.size ()]; + auto leaseRouter = i2p::data::netdb.FindRouter (remoteLease->tunnelGateway); + outboundTunnel = GetTunnelPool ()->GetNextOutboundTunnel (nullptr, + leaseRouter ? leaseRouter->GetCompatibleTransports (false) : (i2p::data::RouterInfo::CompatibleTransports)i2p::data::RouterInfo::eAllTransports); + } if (remoteLease && outboundTunnel) remoteSession->SetSharedRoutingPath (std::make_shared ( - i2p::garlic::GarlicRoutingPath{outboundTunnel, remoteLease, 10000, 0, 0})); // 10 secs RTT + i2p::garlic::GarlicRoutingPath{outboundTunnel, remoteLease, 10000, 0})); // 10 secs RTT else remoteSession->SetSharedRoutingPath (nullptr); } + m_Owner->AddRoutingSession (remote->GetIdentity ()->GetStandardIdentity ().signingKey + 96, remoteSession); // last 32 bytes + return SendMsg (garlic, outboundTunnel, remoteLease); + } + + bool I2CPDestination::SendMsg (std::shared_ptr garlic, + std::shared_ptr outboundTunnel, std::shared_ptr remoteLease) + { if (remoteLease && outboundTunnel) { - std::vector msgs; - auto garlic = remoteSession->WrapSingleMessage (msg); - msgs.push_back (i2p::tunnel::TunnelMessageBlock - { - i2p::tunnel::eDeliveryTypeTunnel, - remoteLease->tunnelGateway, remoteLease->tunnelID, - garlic + outboundTunnel->SendTunnelDataMsgs ( + { + i2p::tunnel::TunnelMessageBlock + { + i2p::tunnel::eDeliveryTypeTunnel, + remoteLease->tunnelGateway, remoteLease->tunnelID, + garlic + } }); - outboundTunnel->SendTunnelDataMsg (msgs); return true; } else @@ -165,22 +287,100 @@ namespace client else LogPrint (eLogWarning, "I2CP: Failed to send message. No outbound tunnels"); return false; + } + } + + bool I2CPDestination::SendMsg (const uint8_t * payload, size_t len, + std::shared_ptr remoteSession, uint32_t nonce) + { + if (!remoteSession) return false; + auto path = remoteSession->GetSharedRoutingPath (); + if (!path) return false; + // get tunnels + std::shared_ptr outboundTunnel; + std::shared_ptr remoteLease; + if (!remoteSession->CleanupUnconfirmedTags ()) // no stuck tags + { + outboundTunnel = path->outboundTunnel; + remoteLease = path->remoteLease; + } + else + { + remoteSession->SetSharedRoutingPath (nullptr); + return false; + } + // create Data message + auto msg = m_I2NPMsgsPool.AcquireSharedMt (); + uint8_t * buf = msg->GetPayload (); + htobe32buf (buf, len); + memcpy (buf + 4, payload, len); + msg->len += len + 4; + msg->FillI2NPMessageHeader (eI2NPData); + // wrap in gralic + auto garlic = remoteSession->WrapSingleMessage (msg); + // send + bool sent = SendMsg (garlic, outboundTunnel, remoteLease); + m_Owner->SendMessageStatusMessage (nonce, sent ? eI2CPMessageStatusGuaranteedSuccess : eI2CPMessageStatusGuaranteedFailure); + if (!sent) + remoteSession->SetSharedRoutingPath (nullptr); + return sent; + } + + void I2CPDestination::CleanupDestination () + { + m_I2NPMsgsPool.CleanUpMt (); + if (m_Owner) m_Owner->CleanupRoutingSessions (); + } + + RunnableI2CPDestination::RunnableI2CPDestination (std::shared_ptr owner, + std::shared_ptr identity, bool isPublic, const std::map& params): + RunnableService ("I2CP"), + I2CPDestination (GetIOService (), owner, identity, isPublic, false, params) + { + } + + RunnableI2CPDestination::~RunnableI2CPDestination () + { + if (IsRunning ()) + Stop (); + } + + void RunnableI2CPDestination::Start () + { + if (!IsRunning ()) + { + I2CPDestination::Start (); + StartIOService (); } } - I2CPSession::I2CPSession (I2CPServer& owner, std::shared_ptr socket): - m_Owner (owner), m_Socket (socket), m_Payload (nullptr), - m_SessionID (0xFFFF), m_MessageID (0), m_IsSendAccepted (true) + void RunnableI2CPDestination::Stop () + { + if (IsRunning ()) + { + I2CPDestination::Stop (); + StopIOService (); + } + } + + I2CPSession::I2CPSession (I2CPServer& owner, std::shared_ptr socket): + m_Owner (owner), m_Socket (socket), m_SessionID (0xFFFF), m_MessageID (0), + m_IsSendAccepted (true), m_IsSending (false) { } I2CPSession::~I2CPSession () { - delete[] m_Payload; + Terminate (); } void I2CPSession::Start () { + if (m_Socket) + { + m_Socket->set_option (boost::asio::socket_base::receive_buffer_size (I2CP_MAX_MESSAGE_LENGTH)); + m_Socket->set_option (boost::asio::socket_base::send_buffer_size (I2CP_MAX_MESSAGE_LENGTH)); + } ReadProtocolByte (); } @@ -196,7 +396,7 @@ namespace client auto s = shared_from_this (); m_Socket->async_read_some (boost::asio::buffer (m_Header, 1), [s](const boost::system::error_code& ecode, std::size_t bytes_transferred) - { + { if (!ecode && bytes_transferred > 0 && s->m_Header[0] == I2CP_PROTOCOL_BYTE) s->ReceiveHeader (); else @@ -207,6 +407,11 @@ namespace client void I2CPSession::ReceiveHeader () { + if (!m_Socket) + { + LogPrint (eLogError, "I2CP: Can't receive header"); + return; + } boost::asio::async_read (*m_Socket, boost::asio::buffer (m_Header, I2CP_HEADER_SIZE), boost::asio::transfer_all (), std::bind (&I2CPSession::HandleReceivedHeader, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -221,8 +426,33 @@ namespace client m_PayloadLen = bufbe32toh (m_Header + I2CP_HEADER_LENGTH_OFFSET); if (m_PayloadLen > 0) { - m_Payload = new uint8_t[m_PayloadLen]; - ReceivePayload (); + if (m_PayloadLen <= I2CP_MAX_MESSAGE_LENGTH) + { + if (!m_Socket) return; + boost::system::error_code ec; + size_t moreBytes = m_Socket->available(ec); + if (!ec) + { + if (moreBytes >= m_PayloadLen) + { + // read and process payload immediately if available + moreBytes = boost::asio::read (*m_Socket, boost::asio::buffer(m_Payload, m_PayloadLen), boost::asio::transfer_all (), ec); + HandleReceivedPayload (ec, moreBytes); + } + else + ReceivePayload (); + } + else + { + LogPrint (eLogWarning, "I2CP: Socket error: ", ec.message ()); + Terminate (); + } + } + else + { + LogPrint (eLogError, "I2CP: Unexpected payload length ", m_PayloadLen); + Terminate (); + } } else // no following payload { @@ -234,6 +464,11 @@ namespace client void I2CPSession::ReceivePayload () { + if (!m_Socket) + { + LogPrint (eLogError, "I2CP: Can't receive payload"); + return; + } boost::asio::async_read (*m_Socket, boost::asio::buffer (m_Payload, m_PayloadLen), boost::asio::transfer_all (), std::bind (&I2CPSession::HandleReceivedPayload, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -246,8 +481,6 @@ namespace client else { HandleMessage (); - delete[] m_Payload; - m_Payload = nullptr; m_PayloadLen = 0; ReceiveHeader (); // next message } @@ -274,59 +507,100 @@ namespace client m_Socket->close (); m_Socket = nullptr; } - m_Owner.RemoveSession (GetSessionID ()); - LogPrint (eLogDebug, "I2CP: session ", m_SessionID, " terminated"); + if (!m_SendQueue.IsEmpty ()) + m_SendQueue.CleanUp (); + if (m_SessionID != 0xFFFF) + { + m_Owner.RemoveSession (GetSessionID ()); + LogPrint (eLogDebug, "I2CP: Session ", m_SessionID, " terminated"); + m_SessionID = 0xFFFF; + } } void I2CPSession::SendI2CPMessage (uint8_t type, const uint8_t * payload, size_t len) { - auto socket = m_Socket; - if (socket) + auto l = len + I2CP_HEADER_SIZE; + if (l > I2CP_MAX_MESSAGE_LENGTH) { - auto l = len + I2CP_HEADER_SIZE; - uint8_t * buf = new uint8_t[l]; - htobe32buf (buf + I2CP_HEADER_LENGTH_OFFSET, len); - buf[I2CP_HEADER_TYPE_OFFSET] = type; - memcpy (buf + I2CP_HEADER_SIZE, payload, len); - boost::asio::async_write (*socket, boost::asio::buffer (buf, l), boost::asio::transfer_all (), - std::bind(&I2CPSession::HandleI2CPMessageSent, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, buf)); + LogPrint (eLogError, "I2CP: Message to send is too long ", l); + return; + } + auto sendBuf = m_IsSending ? std::make_shared (l) : nullptr; + uint8_t * buf = sendBuf ? sendBuf->buf : m_SendBuffer; + htobe32buf (buf + I2CP_HEADER_LENGTH_OFFSET, len); + buf[I2CP_HEADER_TYPE_OFFSET] = type; + memcpy (buf + I2CP_HEADER_SIZE, payload, len); + if (sendBuf) + { + if (m_SendQueue.GetSize () < I2CP_MAX_SEND_QUEUE_SIZE) + m_SendQueue.Add (std::move(sendBuf)); + else + { + LogPrint (eLogWarning, "I2CP: Send queue size exceeds ", I2CP_MAX_SEND_QUEUE_SIZE); + return; + } } else - LogPrint (eLogError, "I2CP: Can't write to the socket"); + { + auto socket = m_Socket; + if (socket) + { + m_IsSending = true; + boost::asio::async_write (*socket, boost::asio::buffer (m_SendBuffer, l), + boost::asio::transfer_all (), std::bind(&I2CPSession::HandleI2CPMessageSent, + shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } + } } - void I2CPSession::HandleI2CPMessageSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, const uint8_t * buf) + void I2CPSession::HandleI2CPMessageSent (const boost::system::error_code& ecode, std::size_t bytes_transferred) { - delete[] buf; - if (ecode && ecode != boost::asio::error::operation_aborted) - Terminate (); + if (ecode) + { + if (ecode != boost::asio::error::operation_aborted) + Terminate (); + } + else if (!m_SendQueue.IsEmpty ()) + { + auto socket = m_Socket; + if (socket) + { + auto len = m_SendQueue.Get (m_SendBuffer, I2CP_MAX_MESSAGE_LENGTH); + boost::asio::async_write (*socket, boost::asio::buffer (m_SendBuffer, len), + boost::asio::transfer_all (),std::bind(&I2CPSession::HandleI2CPMessageSent, + shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } + else + m_IsSending = false; + } + else + m_IsSending = false; } - std::string I2CPSession::ExtractString (const uint8_t * buf, size_t len) + std::string_view I2CPSession::ExtractString (const uint8_t * buf, size_t len) const { uint8_t l = buf[0]; if (l > len) l = len; - return std::string ((const char *)(buf + 1), l); + return { (const char *)(buf + 1), l }; } - size_t I2CPSession::PutString (uint8_t * buf, size_t len, const std::string& str) + size_t I2CPSession::PutString (uint8_t * buf, size_t len, std::string_view str) { auto l = str.length (); if (l + 1 >= len) l = len - 1; if (l > 255) l = 255; // 1 byte max buf[0] = l; - memcpy (buf + 1, str.c_str (), l); + memcpy (buf + 1, str.data (), l); return l + 1; } - void I2CPSession::ExtractMapping (const uint8_t * buf, size_t len, std::map& mapping) + void I2CPSession::ExtractMapping (const uint8_t * buf, size_t len, std::map& mapping) const // TODO: move to Base.cpp { size_t offset = 0; while (offset < len) { - std::string param = ExtractString (buf + offset, len - offset); + auto param = ExtractString (buf + offset, len - offset); offset += param.length () + 1; if (buf[offset] != '=') { @@ -335,7 +609,7 @@ namespace client } offset++; - std::string value = ExtractString (buf + offset, len - offset); + auto value = ExtractString (buf + offset, len - offset); offset += value.length () + 1; if (buf[offset] != ';') { @@ -343,7 +617,7 @@ namespace client break; } offset++; - mapping.insert (std::make_pair (param, value)); + mapping.emplace (param, value); } } @@ -365,21 +639,26 @@ namespace client void I2CPSession::CreateSessionMessageHandler (const uint8_t * buf, size_t len) { RAND_bytes ((uint8_t *)&m_SessionID, 2); - m_Owner.InsertSession (shared_from_this ()); auto identity = std::make_shared(); size_t offset = identity->FromBuffer (buf, len); if (!offset) { - LogPrint (eLogError, "I2CP: create session malformed identity"); - SendSessionStatusMessage (3); // invalid + LogPrint (eLogError, "I2CP: Create session malformed identity"); + SendSessionStatusMessage (eI2CPSessionStatusInvalid); // invalid + return; + } + if (m_Owner.FindSessionByIdentHash (identity->GetIdentHash ())) + { + LogPrint (eLogError, "I2CP: Create session duplicate address ", identity->GetIdentHash ().ToBase32 ()); + SendSessionStatusMessage (eI2CPSessionStatusInvalid); // invalid return; } uint16_t optionsSize = bufbe16toh (buf + offset); offset += 2; if (optionsSize > len - offset) { - LogPrint (eLogError, "I2CP: options size ", optionsSize, "exceeds message size"); - SendSessionStatusMessage (3); // invalid + LogPrint (eLogError, "I2CP: Options size ", optionsSize, "exceeds message size"); + SendSessionStatusMessage (eI2CPSessionStatusInvalid); // invalid return; } std::map params; @@ -390,42 +669,46 @@ namespace client offset += 8; // date if (identity->Verify (buf, offset, buf + offset)) // signature { - bool isPublic = true; - if (params[I2CP_PARAM_DONT_PUBLISH_LEASESET] == "true") isPublic = false; if (!m_Destination) { - m_Destination = std::make_shared(shared_from_this (), identity, isPublic, params); - SendSessionStatusMessage (1); // created - LogPrint (eLogDebug, "I2CP: session ", m_SessionID, " created"); - m_Destination->Start (); + m_Destination = m_Owner.IsSingleThread () ? + std::make_shared(m_Owner.GetService (), shared_from_this (), identity, true, true, params): + std::make_shared(shared_from_this (), identity, true, params); + if (m_Owner.InsertSession (shared_from_this ())) + { + LogPrint (eLogDebug, "I2CP: Session ", m_SessionID, " created"); + m_Destination->Start (); + SendSessionStatusMessage (eI2CPSessionStatusCreated); // created + } + else + { + LogPrint (eLogError, "I2CP: Session already exists"); + SendSessionStatusMessage (eI2CPSessionStatusRefused); + } } else { - LogPrint (eLogError, "I2CP: session already exists"); - SendSessionStatusMessage (4); // refused + LogPrint (eLogError, "I2CP: Session already exists"); + SendSessionStatusMessage (eI2CPSessionStatusRefused); // refused } } else { - LogPrint (eLogError, "I2CP: create session signature verification failed"); - SendSessionStatusMessage (3); // invalid + LogPrint (eLogError, "I2CP: Create session signature verification failed"); + SendSessionStatusMessage (eI2CPSessionStatusInvalid); // invalid } } - + void I2CPSession::DestroySessionMessageHandler (const uint8_t * buf, size_t len) { - SendSessionStatusMessage (0); // destroy - LogPrint (eLogDebug, "I2CP: session ", m_SessionID, " destroyed"); - if (m_Destination) - { - m_Destination->Stop (); - m_Destination = 0; - } + SendSessionStatusMessage (eI2CPSessionStatusDestroyed); // destroy + LogPrint (eLogDebug, "I2CP: Session ", m_SessionID, " destroyed"); + Terminate (); } void I2CPSession::ReconfigureSessionMessageHandler (const uint8_t * buf, size_t len) { - uint8_t status = 3; // rejected + I2CPSessionStatus status = eI2CPSessionStatusInvalid; // rejected if(len > sizeof(uint16_t)) { uint16_t sessionID = bufbe16toh(buf); @@ -454,37 +737,37 @@ namespace client { if(m_Destination->Reconfigure(opts)) { - LogPrint(eLogInfo, "I2CP: reconfigured destination"); - status = 2; // updated + LogPrint(eLogInfo, "I2CP: Reconfigured destination"); + status = eI2CPSessionStatusUpdated; // updated } else - LogPrint(eLogWarning, "I2CP: failed to reconfigure destination"); + LogPrint(eLogWarning, "I2CP: Failed to reconfigure destination"); } else - LogPrint(eLogError, "I2CP: invalid reconfigure message signature"); + LogPrint(eLogError, "I2CP: Invalid reconfigure message signature"); } else - LogPrint(eLogError, "I2CP: mapping size mismatch"); + LogPrint(eLogError, "I2CP: Mapping size mismatch"); } else - LogPrint(eLogError, "I2CP: destination mismatch"); + LogPrint(eLogError, "I2CP: Destination mismatch"); } else - LogPrint(eLogError, "I2CP: malfromed destination"); + LogPrint(eLogError, "I2CP: Malfromed destination"); } else - LogPrint(eLogError, "I2CP: session mismatch"); + LogPrint(eLogError, "I2CP: Session mismatch"); } else - LogPrint(eLogError, "I2CP: short message"); - SendSessionStatusMessage (status); - } + LogPrint(eLogError, "I2CP: Short message"); + SendSessionStatusMessage (status); + } - void I2CPSession::SendSessionStatusMessage (uint8_t status) + void I2CPSession::SendSessionStatusMessage (I2CPSessionStatus status) { uint8_t buf[3]; htobe16buf (buf, m_SessionID); - buf[2] = status; + buf[2] = (uint8_t)status; SendI2CPMessage (I2CP_SESSION_STATUS_MESSAGE, buf, 3); } @@ -500,6 +783,26 @@ namespace client SendI2CPMessage (I2CP_MESSAGE_STATUS_MESSAGE, buf, 15); } + void I2CPSession::AddRoutingSession (const i2p::data::IdentHash& signingKey, std::shared_ptr remoteSession) + { + if (!remoteSession) return; + remoteSession->SetAckRequestInterval (I2CP_SESSION_ACK_REQUEST_INTERVAL); + std::lock_guard l(m_RoutingSessionsMutex); + m_RoutingSessions[signingKey] = remoteSession; + } + + void I2CPSession::CleanupRoutingSessions () + { + std::lock_guard l(m_RoutingSessionsMutex); + for (auto it = m_RoutingSessions.begin (); it != m_RoutingSessions.end ();) + { + if (it->second->IsTerminated ()) + it = m_RoutingSessions.erase (it); + else + it++; + } + } + void I2CPSession::CreateLeaseSetMessageHandler (const uint8_t * buf, size_t len) { uint16_t sessionID = bufbe16toh (buf); @@ -518,7 +821,7 @@ namespace client } } else - LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID); + LogPrint (eLogError, "I2CP: Unexpected sessionID ", sessionID); } void I2CPSession::CreateLeaseSet2MessageHandler (const uint8_t * buf, size_t len) @@ -533,36 +836,33 @@ namespace client i2p::data::LeaseSet2 ls (storeType, buf + offset, len - offset); // outer layer only for encrypted if (!ls.IsValid ()) { - LogPrint (eLogError, "I2CP: invalid LeaseSet2 of type ", storeType); + LogPrint (eLogError, "I2CP: Invalid LeaseSet2 of type ", storeType); return; - } + } offset += ls.GetBufferLen (); // private keys int numPrivateKeys = buf[offset]; offset++; - uint16_t currentKeyType = 0; - const uint8_t * currentKey = nullptr; for (int i = 0; i < numPrivateKeys; i++) { if (offset + 4 > len) return; uint16_t keyType = bufbe16toh (buf + offset); offset += 2; // encryption type - uint16_t keyLen = bufbe16toh (buf + offset); offset += 2; // private key length + uint16_t keyLen = bufbe16toh (buf + offset); offset += 2; // private key length if (offset + keyLen > len) return; - if (keyType > currentKeyType) + if (keyType == i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD) + m_Destination->SetECIESx25519EncryptionPrivateKey (buf + offset); + else { - currentKeyType = keyType; - currentKey = buf + offset; + m_Destination->SetEncryptionType (keyType); + m_Destination->SetEncryptionPrivateKey (buf + offset); } offset += keyLen; - } - // TODO: support multiple keys - if (currentKey) - m_Destination->SetEncryptionPrivateKey (currentKey); + } - m_Destination->LeaseSet2Created (storeType, ls.GetBuffer (), ls.GetBufferLen ()); + m_Destination->LeaseSet2Created (storeType, ls.GetBuffer (), ls.GetBufferLen ()); } } else - LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID); + LogPrint (eLogError, "I2CP: Unexpected sessionID ", sessionID); } void I2CPSession::SendMessageMessageHandler (const uint8_t * buf, size_t len) @@ -573,29 +873,54 @@ namespace client size_t offset = 2; if (m_Destination) { - i2p::data::IdentityEx identity; - size_t identsize = identity.FromBuffer (buf + offset, len - offset); - if (identsize) + const uint8_t * ident = buf + offset; + size_t identSize = i2p::data::GetIdentityBufferLen (ident, len - offset); + if (identSize) { - offset += identsize; + offset += identSize; uint32_t payloadLen = bufbe32toh (buf + offset); if (payloadLen + offset <= len) { offset += 4; uint32_t nonce = bufbe32toh (buf + offset + payloadLen); - if (m_IsSendAccepted) - SendMessageStatusMessage (nonce, eI2CPMessageStatusAccepted); // accepted - m_Destination->SendMsgTo (buf + offset, payloadLen, identity.GetIdentHash (), nonce); + if (m_Destination->IsReady ()) + { + if (m_IsSendAccepted) + SendMessageStatusMessage (nonce, eI2CPMessageStatusAccepted); // accepted + std::shared_ptr remoteSession; + { + std::lock_guard l(m_RoutingSessionsMutex); + auto it = m_RoutingSessions.find (ident + i2p::data::DEFAULT_IDENTITY_SIZE - 35); // 32 bytes signing key + if (it != m_RoutingSessions.end ()) + { + if (!it->second->IsTerminated ()) + remoteSession = it->second; + else + m_RoutingSessions.erase (it); + } + } + if (!remoteSession || !m_Destination->SendMsg (buf + offset, payloadLen, remoteSession, nonce)) + { + i2p::data::IdentHash identHash; + SHA256(ident, identSize, identHash); // calculate ident hash, because we don't need full identity + m_Destination->SendMsgTo (buf + offset, payloadLen, identHash, nonce); + } + } + else + { + LogPrint(eLogInfo, "I2CP: Destination is not ready"); + SendMessageStatusMessage (nonce, eI2CPMessageStatusNoLocalTunnels); + } } else - LogPrint(eLogError, "I2CP: cannot send message, too big"); + LogPrint(eLogError, "I2CP: Cannot send message, too big"); } else - LogPrint(eLogError, "I2CP: invalid identity"); + LogPrint(eLogError, "I2CP: Invalid identity"); } } else - LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID); + LogPrint (eLogError, "I2CP: Unexpected sessionID ", sessionID); } void I2CPSession::SendMessageExpiresMessageHandler (const uint8_t * buf, size_t len) @@ -623,7 +948,7 @@ namespace client if (!addr || !addr->IsIdentHash ()) { // TODO: handle blinded addresses - LogPrint (eLogError, "I2CP: address ", name, " not found"); + LogPrint (eLogError, "I2CP: Address ", name, " not found"); SendHostReplyMessage (requestID, nullptr); return; } @@ -632,7 +957,7 @@ namespace client break; } default: - LogPrint (eLogError, "I2CP: request type ", (int)buf[10], " is not supported"); + LogPrint (eLogError, "I2CP: Request type ", (int)buf[10], " is not supported"); SendHostReplyMessage (requestID, nullptr); return; } @@ -658,7 +983,7 @@ namespace client SendHostReplyMessage (requestID, nullptr); } else - LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID); + LogPrint (eLogError, "I2CP: Unexpected sessionID ", sessionID); } void I2CPSession::SendHostReplyMessage (uint32_t requestID, std::shared_ptr identity) @@ -725,8 +1050,12 @@ namespace client { uint8_t limits[64]; memset (limits, 0, 64); - htobe32buf (limits, i2p::transport::transports.GetInBandwidth ()); // inbound - htobe32buf (limits + 4, i2p::transport::transports.GetOutBandwidth ()); // outbound + uint32_t limit; i2p::config::GetOption("i2cp.inboundlimit", limit); + if (!limit) limit = i2p::context.GetBandwidthLimit (); + htobe32buf (limits, limit); // inbound + i2p::config::GetOption("i2cp.outboundlimit", limit); + if (!limit) limit = i2p::context.GetBandwidthLimit (); + htobe32buf (limits + 4, limit); // outbound SendI2CPMessage (I2CP_BANDWIDTH_LIMITS_MESSAGE, limits, 64); } @@ -734,26 +1063,46 @@ namespace client { // we don't use SendI2CPMessage to eliminate additional copy auto l = len + 10 + I2CP_HEADER_SIZE; - uint8_t * buf = new uint8_t[l]; + if (l > I2CP_MAX_MESSAGE_LENGTH) + { + LogPrint (eLogError, "I2CP: Message to send is too long ", l); + return; + } + auto sendBuf = m_IsSending ? std::make_shared (l) : nullptr; + uint8_t * buf = sendBuf ? sendBuf->buf : m_SendBuffer; htobe32buf (buf + I2CP_HEADER_LENGTH_OFFSET, len + 10); buf[I2CP_HEADER_TYPE_OFFSET] = I2CP_MESSAGE_PAYLOAD_MESSAGE; htobe16buf (buf + I2CP_HEADER_SIZE, m_SessionID); htobe32buf (buf + I2CP_HEADER_SIZE + 2, m_MessageID++); htobe32buf (buf + I2CP_HEADER_SIZE + 6, len); memcpy (buf + I2CP_HEADER_SIZE + 10, payload, len); - boost::asio::async_write (*m_Socket, boost::asio::buffer (buf, l), boost::asio::transfer_all (), - std::bind(&I2CPSession::HandleI2CPMessageSent, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, buf)); + if (sendBuf) + { + if (m_SendQueue.GetSize () < I2CP_MAX_SEND_QUEUE_SIZE) + m_SendQueue.Add (std::move(sendBuf)); + else + { + LogPrint (eLogWarning, "I2CP: Send queue size exceeds ", I2CP_MAX_SEND_QUEUE_SIZE); + return; + } + } + else + { + auto socket = m_Socket; + if (socket) + { + m_IsSending = true; + boost::asio::async_write (*socket, boost::asio::buffer (m_SendBuffer, l), + boost::asio::transfer_all (), std::bind(&I2CPSession::HandleI2CPMessageSent, + shared_from_this (), std::placeholders::_1, std::placeholders::_2)); + } + } } - I2CPServer::I2CPServer (const std::string& interface, int port): - m_IsRunning (false), m_Thread (nullptr), - m_Acceptor (m_Service, -#ifdef ANDROID - I2CPSession::proto::endpoint(std::string (1, '\0') + interface)) // leading 0 for abstract address -#else - I2CPSession::proto::endpoint(boost::asio::ip::address::from_string(interface), port)) -#endif + I2CPServer::I2CPServer (const std::string& interface, uint16_t port, bool isSingleThread): + RunnableService ("I2CP"), m_IsSingleThread (isSingleThread), + m_Acceptor (GetIOService (), + boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(interface), port)) { memset (m_MessagesHandlers, 0, sizeof (m_MessagesHandlers)); m_MessagesHandlers[I2CP_GET_DATE_MESSAGE] = &I2CPSession::GetDateMessageHandler; @@ -771,57 +1120,37 @@ namespace client I2CPServer::~I2CPServer () { - if (m_IsRunning) + if (IsRunning ()) Stop (); } void I2CPServer::Start () { Accept (); - m_IsRunning = true; - m_Thread = new std::thread (std::bind (&I2CPServer::Run, this)); + StartIOService (); } void I2CPServer::Stop () { - m_IsRunning = false; m_Acceptor.cancel (); - for (auto& it: m_Sessions) + + decltype(m_Sessions) sessions; + m_Sessions.swap (sessions); + for (auto& it: sessions) it.second->Stop (); - m_Sessions.clear (); - m_Service.stop (); - if (m_Thread) - { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } - } - - void I2CPServer::Run () - { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "I2CP: runtime exception: ", ex.what ()); - } - } + + StopIOService (); } void I2CPServer::Accept () { - auto newSocket = std::make_shared (m_Service); + auto newSocket = std::make_shared (GetIOService ()); m_Acceptor.async_accept (*newSocket, std::bind (&I2CPServer::HandleAccept, this, std::placeholders::_1, newSocket)); } void I2CPServer::HandleAccept(const boost::system::error_code& ecode, - std::shared_ptr socket) + std::shared_ptr socket) { if (!ecode && socket) { @@ -829,15 +1158,15 @@ namespace client auto ep = socket->remote_endpoint (ec); if (!ec) { - LogPrint (eLogDebug, "I2CP: new connection from ", ep); + LogPrint (eLogDebug, "I2CP: New connection from ", ep); auto session = std::make_shared(*this, socket); session->Start (); } else - LogPrint (eLogError, "I2CP: incoming connection error ", ec.message ()); + LogPrint (eLogError, "I2CP: Incoming connection error ", ec.message ()); } else - LogPrint (eLogError, "I2CP: accept error: ", ecode.message ()); + LogPrint (eLogError, "I2CP: Accept error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Accept (); @@ -848,7 +1177,7 @@ namespace client if (!session) return false; if (!m_Sessions.insert({session->GetSessionID (), session}).second) { - LogPrint (eLogError, "I2CP: duplicate session id ", session->GetSessionID ()); + LogPrint (eLogError, "I2CP: Duplicate session id ", session->GetSessionID ()); return false; } return true; @@ -858,6 +1187,19 @@ namespace client { m_Sessions.erase (sessionID); } -} -} + std::shared_ptr I2CPServer::FindSessionByIdentHash (const i2p::data::IdentHash& ident) const + { + for (const auto& it: m_Sessions) + { + if (it.second) + { + auto dest = it.second->GetDestination (); + if (dest && dest->GetIdentHash () == ident) + return it.second; + } + } + return nullptr; + } +} +} diff --git a/libi2pd_client/I2CP.h b/libi2pd_client/I2CP.h index 0d235161..37c14dbb 100644 --- a/libi2pd_client/I2CP.h +++ b/libi2pd_client/I2CP.h @@ -1,5 +1,5 @@ /* -* Copyright (c) 2013-2019, The PurpleI2P Project +* Copyright (c) 2013-2025, The PurpleI2P Project * * This file is part of Purple i2pd project and licensed under BSD3 * @@ -11,11 +11,17 @@ #include #include +#include #include +#include #include #include +#include #include +#include "util.h" #include "Destination.h" +#include "Streaming.h" +#include "CryptoKey.h" namespace i2p { @@ -23,6 +29,11 @@ namespace client { const uint8_t I2CP_PROTOCOL_BYTE = 0x2A; const size_t I2CP_SESSION_BUFFER_SIZE = 4096; + const size_t I2CP_MAX_MESSAGE_LENGTH = 65535; + const size_t I2CP_MAX_SEND_QUEUE_SIZE = 1024*1024; // in bytes, 1M + const int I2CP_LEASESET_CREATION_TIMEOUT = 10; // in seconds + const int I2CP_DESTINATION_READINESS_CHECK_INTERVAL = 5; // in seconds + const int I2CP_SESSION_ACK_REQUEST_INTERVAL = 12100; // in milliseconds const size_t I2CP_HEADER_LENGTH_OFFSET = 0; const size_t I2CP_HEADER_TYPE_OFFSET = I2CP_HEADER_LENGTH_OFFSET + 4; @@ -53,11 +64,20 @@ namespace client eI2CPMessageStatusAccepted = 1, eI2CPMessageStatusGuaranteedSuccess = 4, eI2CPMessageStatusGuaranteedFailure = 5, + eI2CPMessageStatusNoLocalTunnels = 16, eI2CPMessageStatusNoLeaseSet = 21 }; + enum I2CPSessionStatus + { + eI2CPSessionStatusDestroyed = 0, + eI2CPSessionStatusCreated = 1, + eI2CPSessionStatusUpdated = 2, + eI2CPSessionStatusInvalid = 3, + eI2CPSessionStatusRefused = 4 + }; + // params - const char I2CP_PARAM_DONT_PUBLISH_LEASESET[] = "i2cp.dontPublishLeaseSet"; const char I2CP_PARAM_MESSAGE_RELIABILITY[] = "i2cp.messageReliability"; class I2CPSession; @@ -65,36 +85,75 @@ namespace client { public: - I2CPDestination (std::shared_ptr owner, std::shared_ptr identity, bool isPublic, const std::map& params); + I2CPDestination (boost::asio::io_context& service, std::shared_ptr owner, + std::shared_ptr identity, bool isPublic, bool isSameThread, + const std::map& params); + ~I2CPDestination () {}; + + void Stop () override; void SetEncryptionPrivateKey (const uint8_t * key); + void SetEncryptionType (i2p::data::CryptoKeyType keyType) { m_EncryptionKeyType = keyType; }; + void SetECIESx25519EncryptionPrivateKey (const uint8_t * key); void LeaseSetCreated (const uint8_t * buf, size_t len); // called from I2CPSession void LeaseSet2Created (uint8_t storeType, const uint8_t * buf, size_t len); // called from I2CPSession void SendMsgTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash& ident, uint32_t nonce); // called from I2CPSession - + bool SendMsg (const uint8_t * payload, size_t len, std::shared_ptr remoteSession, uint32_t nonce); + // implements LocalDestination - bool Decrypt (const uint8_t * encrypted, uint8_t * data, BN_CTX * ctx) const; - std::shared_ptr GetIdentity () const { return m_Identity; }; + bool Decrypt (const uint8_t * encrypted, uint8_t * data, i2p::data::CryptoKeyType preferredCrypto) const override; + bool SupportsEncryptionType (i2p::data::CryptoKeyType keyType) const override; + const uint8_t * GetEncryptionPublicKey (i2p::data::CryptoKeyType keyType) const override; // for 4 only + std::shared_ptr GetIdentity () const override { return m_Identity; }; protected: + // GarlicDestination + i2p::data::CryptoKeyType GetRatchetsHighestCryptoType () const override + { + return m_ECIESx25519Decryptor ? i2p::data::CRYPTO_KEY_TYPE_ECIES_X25519_AEAD : 0; + } + // LeaseSetDestination + void CleanupDestination () override; + i2p::data::CryptoKeyType GetPreferredCryptoType () const override; // I2CP - void HandleDataMessage (const uint8_t * buf, size_t len); - void CreateNewLeaseSet (std::vector > tunnels); - + void HandleDataMessage (const uint8_t * buf, size_t len) override; + void CreateNewLeaseSet (const std::vector >& tunnels) override; + private: std::shared_ptr GetSharedFromThis () { return std::static_pointer_cast(shared_from_this ()); } bool SendMsg (std::shared_ptr msg, std::shared_ptr remote); + bool SendMsg (std::shared_ptr garlic, + std::shared_ptr outboundTunnel, std::shared_ptr remoteLease); + + void PostCreateNewLeaseSet (std::vector > tunnels); private: std::shared_ptr m_Owner; std::shared_ptr m_Identity; - uint8_t m_EncryptionPrivateKey[256]; - std::shared_ptr m_Decryptor; + i2p::data::CryptoKeyType m_EncryptionKeyType; + std::shared_ptr m_Decryptor; // standard + std::shared_ptr m_ECIESx25519Decryptor; + uint8_t m_ECIESx25519PrivateKey[32]; uint64_t m_LeaseSetExpirationTime; + bool m_IsCreatingLeaseSet, m_IsSameThread; + boost::asio::deadline_timer m_LeaseSetCreationTimer, m_ReadinessCheckTimer; + i2p::util::MemoryPoolMt > m_I2NPMsgsPool; + }; + + class RunnableI2CPDestination: private i2p::util::RunnableService, public I2CPDestination + { + public: + + RunnableI2CPDestination (std::shared_ptr owner, std::shared_ptr identity, + bool isPublic, const std::map& params); + ~RunnableI2CPDestination (); + + void Start (); + void Stop (); }; class I2CPServer; @@ -102,13 +161,7 @@ namespace client { public: -#ifdef ANDROID - typedef boost::asio::local::stream_protocol proto; -#else - typedef boost::asio::ip::tcp proto; -#endif - - I2CPSession (I2CPServer& owner, std::shared_ptr socket); + I2CPSession (I2CPServer& owner, std::shared_ptr socket); ~I2CPSession (); @@ -121,6 +174,8 @@ namespace client void SendI2CPMessage (uint8_t type, const uint8_t * payload, size_t len); void SendMessagePayloadMessage (const uint8_t * payload, size_t len); void SendMessageStatusMessage (uint32_t nonce, I2CPMessageStatus status); + void AddRoutingSession (const i2p::data::IdentHash& signingKey, std::shared_ptr remoteSession); + void CleanupRoutingSessions (); // message handlers void GetDateMessageHandler (const uint8_t * buf, size_t len); @@ -145,59 +200,64 @@ namespace client void HandleMessage (); void Terminate (); - void HandleI2CPMessageSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, const uint8_t * buf); - std::string ExtractString (const uint8_t * buf, size_t len); - size_t PutString (uint8_t * buf, size_t len, const std::string& str); - void ExtractMapping (const uint8_t * buf, size_t len, std::map& mapping); + void HandleI2CPMessageSent (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void SendSessionStatusMessage (uint8_t status); + std::string_view ExtractString (const uint8_t * buf, size_t len) const; + size_t PutString (uint8_t * buf, size_t len, std::string_view str); + void ExtractMapping (const uint8_t * buf, size_t len, std::map& mapping) const; + void SendSessionStatusMessage (I2CPSessionStatus status); void SendHostReplyMessage (uint32_t requestID, std::shared_ptr identity); - + private: I2CPServer& m_Owner; - std::shared_ptr m_Socket; - uint8_t m_Header[I2CP_HEADER_SIZE], * m_Payload; + std::shared_ptr m_Socket; + uint8_t m_Header[I2CP_HEADER_SIZE], m_Payload[I2CP_MAX_MESSAGE_LENGTH]; size_t m_PayloadLen; std::shared_ptr m_Destination; + std::mutex m_RoutingSessionsMutex; + std::unordered_map > m_RoutingSessions; // signing key->session uint16_t m_SessionID; uint32_t m_MessageID; bool m_IsSendAccepted; + + // to client + bool m_IsSending; + uint8_t m_SendBuffer[I2CP_MAX_MESSAGE_LENGTH]; + i2p::stream::SendBufferQueue m_SendQueue; }; typedef void (I2CPSession::*I2CPMessageHandler)(const uint8_t * buf, size_t len); - class I2CPServer + class I2CPServer: private i2p::util::RunnableService { public: - I2CPServer (const std::string& interface, int port); + I2CPServer (const std::string& interface, uint16_t port, bool isSingleThread); ~I2CPServer (); void Start (); void Stop (); - boost::asio::io_service& GetService () { return m_Service; }; + auto& GetService () { return GetIOService (); }; + bool IsSingleThread () const { return m_IsSingleThread; }; bool InsertSession (std::shared_ptr session); void RemoveSession (uint16_t sessionID); + std::shared_ptr FindSessionByIdentHash (const i2p::data::IdentHash& ident) const; private: - void Run (); - void Accept (); - void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket); + void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket); private: + bool m_IsSingleThread; I2CPMessageHandler m_MessagesHandlers[256]; std::map > m_Sessions; - bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; - I2CPSession::proto::acceptor m_Acceptor; + boost::asio::ip::tcp::acceptor m_Acceptor; public: @@ -210,4 +270,3 @@ namespace client } #endif - diff --git a/libi2pd_client/I2PService.cpp b/libi2pd_client/I2PService.cpp index 7157020f..4ec2648a 100644 --- a/libi2pd_client/I2PService.cpp +++ b/libi2pd_client/I2PService.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "Destination.h" #include "Identity.h" #include "ClientContext.h" @@ -84,7 +92,7 @@ namespace client auto itr = m_ReadyCallbacks.begin(); while(itr != m_ReadyCallbacks.end()) { - if(itr->second != NEVER_TIMES_OUT && now >= itr->second) + if(itr->second != NEVER_TIMES_OUT && now >= itr->second) { itr->first(boost::asio::error::timed_out); itr = m_ReadyCallbacks.erase(itr); @@ -94,12 +102,12 @@ namespace client } } if(!ec && m_ReadyCallbacks.size()) - TriggerReadyCheckTimer(); + TriggerReadyCheckTimer(); else - m_ReadyTimerTriggered = false; + m_ReadyTimerTriggered = false; } - void I2PService::CreateStream (StreamRequestComplete streamRequestComplete, const std::string& dest, int port) { + void I2PService::CreateStream (StreamRequestComplete streamRequestComplete, std::string_view dest, uint16_t port) { assert(streamRequestComplete); auto address = i2p::client::context.GetAddressBook ().GetAddress (dest); if (address) @@ -111,222 +119,33 @@ namespace client } } - void I2PService::CreateStream(StreamRequestComplete streamRequestComplete, std::shared_ptr address, int port) + void I2PService::CreateStream(StreamRequestComplete streamRequestComplete, std::shared_ptr address, uint16_t port) { if(m_ConnectTimeout && !m_LocalDestination->IsReady()) { - AddReadyCallback([this, streamRequestComplete, address, port] (const boost::system::error_code & ec) { + AddReadyCallback([this, streamRequestComplete, address, port] (const boost::system::error_code & ec) + { if(ec) { - LogPrint(eLogWarning, "I2PService::CeateStream() ", ec.message()); + LogPrint(eLogWarning, "I2PService::CreateStream() ", ec.message()); streamRequestComplete(nullptr); } else - { if (address->IsIdentHash ()) + { + if (address->IsIdentHash ()) this->m_LocalDestination->CreateStream(streamRequestComplete, address->identHash, port); else - this->m_LocalDestination->CreateStream (streamRequestComplete, address->blindedPublicKey, port); + this->m_LocalDestination->CreateStream (streamRequestComplete, address->blindedPublicKey, port); } }); } else - { + { if (address->IsIdentHash ()) m_LocalDestination->CreateStream (streamRequestComplete, address->identHash, port); else m_LocalDestination->CreateStream (streamRequestComplete, address->blindedPublicKey, port); } } - - TCPIPPipe::TCPIPPipe(I2PService * owner, std::shared_ptr upstream, std::shared_ptr downstream) : I2PServiceHandler(owner), m_up(upstream), m_down(downstream) - { - boost::asio::socket_base::receive_buffer_size option(TCP_IP_PIPE_BUFFER_SIZE); - upstream->set_option(option); - downstream->set_option(option); - } - - TCPIPPipe::~TCPIPPipe() - { - Terminate(); - } - - void TCPIPPipe::Start() - { - AsyncReceiveUpstream(); - AsyncReceiveDownstream(); - } - - void TCPIPPipe::Terminate() - { - if(Kill()) return; - if (m_up) - { - if (m_up->is_open()) - m_up->close(); - m_up = nullptr; - } - if (m_down) - { - if (m_down->is_open()) - m_down->close(); - m_down = nullptr; - } - Done(shared_from_this()); - } - - void TCPIPPipe::AsyncReceiveUpstream() - { - if (m_up) - { - m_up->async_read_some(boost::asio::buffer(m_upstream_to_down_buf, TCP_IP_PIPE_BUFFER_SIZE), - std::bind(&TCPIPPipe::HandleUpstreamReceived, shared_from_this(), - std::placeholders::_1, std::placeholders::_2)); - } - else - LogPrint(eLogError, "TCPIPPipe: upstream receive: no socket"); - } - - void TCPIPPipe::AsyncReceiveDownstream() - { - if (m_down) { - m_down->async_read_some(boost::asio::buffer(m_downstream_to_up_buf, TCP_IP_PIPE_BUFFER_SIZE), - std::bind(&TCPIPPipe::HandleDownstreamReceived, shared_from_this(), - std::placeholders::_1, std::placeholders::_2)); - } - else - LogPrint(eLogError, "TCPIPPipe: downstream receive: no socket"); - } - - void TCPIPPipe::UpstreamWrite(size_t len) - { - if (m_up) - { - LogPrint(eLogDebug, "TCPIPPipe: upstream: ", (int) len, " bytes written"); - boost::asio::async_write(*m_up, boost::asio::buffer(m_upstream_buf, len), - boost::asio::transfer_all(), - std::bind(&TCPIPPipe::HandleUpstreamWrite, - shared_from_this(), - std::placeholders::_1)); - } - else - LogPrint(eLogError, "TCPIPPipe: upstream write: no socket"); - } - - void TCPIPPipe::DownstreamWrite(size_t len) - { - if (m_down) - { - LogPrint(eLogDebug, "TCPIPPipe: downstream: ", (int) len, " bytes written"); - boost::asio::async_write(*m_down, boost::asio::buffer(m_downstream_buf, len), - boost::asio::transfer_all(), - std::bind(&TCPIPPipe::HandleDownstreamWrite, - shared_from_this(), - std::placeholders::_1)); - } - else - LogPrint(eLogError, "TCPIPPipe: downstream write: no socket"); - } - - - void TCPIPPipe::HandleDownstreamReceived(const boost::system::error_code & ecode, std::size_t bytes_transfered) - { - LogPrint(eLogDebug, "TCPIPPipe: downstream: ", (int) bytes_transfered, " bytes received"); - if (ecode) - { - LogPrint(eLogError, "TCPIPPipe: downstream read error:" , ecode.message()); - if (ecode != boost::asio::error::operation_aborted) - Terminate(); - } else { - if (bytes_transfered > 0 ) - memcpy(m_upstream_buf, m_downstream_to_up_buf, bytes_transfered); - UpstreamWrite(bytes_transfered); - } - } - - void TCPIPPipe::HandleDownstreamWrite(const boost::system::error_code & ecode) { - if (ecode) - { - LogPrint(eLogError, "TCPIPPipe: downstream write error:" , ecode.message()); - if (ecode != boost::asio::error::operation_aborted) - Terminate(); - } - else - AsyncReceiveUpstream(); - } - - void TCPIPPipe::HandleUpstreamWrite(const boost::system::error_code & ecode) { - if (ecode) - { - LogPrint(eLogError, "TCPIPPipe: upstream write error:" , ecode.message()); - if (ecode != boost::asio::error::operation_aborted) - Terminate(); - } - else - AsyncReceiveDownstream(); - } - - void TCPIPPipe::HandleUpstreamReceived(const boost::system::error_code & ecode, std::size_t bytes_transfered) - { - LogPrint(eLogDebug, "TCPIPPipe: upstream ", (int)bytes_transfered, " bytes received"); - if (ecode) - { - LogPrint(eLogError, "TCPIPPipe: upstream read error:" , ecode.message()); - if (ecode != boost::asio::error::operation_aborted) - Terminate(); - } else { - if (bytes_transfered > 0 ) - memcpy(m_downstream_buf, m_upstream_to_down_buf, bytes_transfered); - DownstreamWrite(bytes_transfered); - } - } - - void TCPIPAcceptor::Start () - { - m_Acceptor.reset (new boost::asio::ip::tcp::acceptor (GetService (), m_LocalEndpoint)); - //update the local end point in case port has been set zero and got updated now - m_LocalEndpoint = m_Acceptor->local_endpoint(); - m_Acceptor->listen (); - Accept (); - } - - void TCPIPAcceptor::Stop () - { - if (m_Acceptor) - { - m_Acceptor->close(); - m_Acceptor.reset (nullptr); - } - m_Timer.cancel (); - ClearHandlers(); - } - - void TCPIPAcceptor::Accept () - { - auto newSocket = std::make_shared (GetService ()); - m_Acceptor->async_accept (*newSocket, std::bind (&TCPIPAcceptor::HandleAccept, this, - std::placeholders::_1, newSocket)); - } - - void TCPIPAcceptor::HandleAccept (const boost::system::error_code& ecode, std::shared_ptr socket) - { - if (!ecode) - { - LogPrint(eLogDebug, "I2PService: ", GetName(), " accepted"); - auto handler = CreateHandler(socket); - if (handler) - { - AddHandler(handler); - handler->Handle(); - } - else - socket->close(); - Accept(); - } - else - { - if (ecode != boost::asio::error::operation_aborted) - LogPrint (eLogError, "I2PService: ", GetName(), " closing socket on accept because: ", ecode.message ()); - } - } } } diff --git a/libi2pd_client/I2PService.h b/libi2pd_client/I2PService.h index e0dfd2da..d19c28e2 100644 --- a/libi2pd_client/I2PService.h +++ b/libi2pd_client/I2PService.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef I2PSERVICE_H__ #define I2PSERVICE_H__ @@ -18,10 +26,12 @@ namespace client class I2PService : public std::enable_shared_from_this { public: + typedef std::function ReadyCallback; public: - I2PService (std::shared_ptr localDestination = nullptr); + + I2PService (std::shared_ptr localDestination = nullptr); I2PService (i2p::data::SigningKeyType kt); virtual ~I2PService (); @@ -42,16 +52,16 @@ namespace client void AddReadyCallback(ReadyCallback cb); inline std::shared_ptr GetLocalDestination () { return m_LocalDestination; } - inline std::shared_ptr GetLocalDestination () const { return m_LocalDestination; } + inline std::shared_ptr GetLocalDestination () const { return m_LocalDestination; } inline void SetLocalDestination (std::shared_ptr dest) { if (m_LocalDestination) m_LocalDestination->Release (); if (dest) dest->Acquire (); m_LocalDestination = dest; } - void CreateStream (StreamRequestComplete streamRequestComplete, const std::string& dest, int port = 0); - void CreateStream(StreamRequestComplete complete, std::shared_ptr address, int port); - inline boost::asio::io_service& GetService () { return m_LocalDestination->GetService (); } + void CreateStream (StreamRequestComplete streamRequestComplete, std::string_view dest, uint16_t port = 0); + void CreateStream(StreamRequestComplete complete, std::shared_ptr address, uint16_t port); + auto& GetService () { return m_LocalDestination->GetService (); } virtual void Start () = 0; virtual void Stop () = 0; @@ -59,21 +69,24 @@ namespace client virtual const char* GetName() { return "Generic I2P Service"; } private: + void TriggerReadyCheckTimer(); void HandleReadyCheckTimer(const boost::system::error_code & ec); private: + std::shared_ptr m_LocalDestination; std::unordered_set > m_Handlers; std::mutex m_HandlersMutex; std::vector > m_ReadyCallbacks; boost::asio::deadline_timer m_ReadyTimer; - bool m_ReadyTimerTriggered; + bool m_ReadyTimerTriggered; uint32_t m_ConnectTimeout; - const size_t NEVER_TIMES_OUT = 0; - + const size_t NEVER_TIMES_OUT = 0; + public: + bool isUpdated; // transient, used during reload only }; @@ -81,14 +94,17 @@ namespace client class I2PServiceHandler { public: + I2PServiceHandler(I2PService * parent) : m_Service(parent), m_Dead(false) { } virtual ~I2PServiceHandler() { } //If you override this make sure you call it from the children virtual void Handle() {}; //Start handling the socket + virtual void Start () {}; void Terminate () { Kill (); }; protected: + // Call when terminating or handing over to avoid race conditions inline bool Kill () { return m_Dead.exchange(true); } // Call to know if the handler is dead @@ -99,70 +115,176 @@ namespace client inline I2PService * GetOwner() { return m_Service; } private: + I2PService *m_Service; std::atomic m_Dead; //To avoid cleaning up multiple times }; - const size_t TCP_IP_PIPE_BUFFER_SIZE = 8192 * 8; + const size_t SOCKETS_PIPE_BUFFER_SIZE = 8192 * 8; - // bidirectional pipe for 2 tcp/ip sockets - class TCPIPPipe: public I2PServiceHandler, public std::enable_shared_from_this + // bidirectional pipe for 2 stream sockets + template + class SocketsPipe: public I2PServiceHandler, + public std::enable_shared_from_this > { public: - TCPIPPipe(I2PService * owner, std::shared_ptr upstream, std::shared_ptr downstream); - ~TCPIPPipe(); - void Start(); - protected: - void Terminate(); - void AsyncReceiveUpstream(); - void AsyncReceiveDownstream(); - void HandleUpstreamReceived(const boost::system::error_code & ecode, std::size_t bytes_transferred); - void HandleDownstreamReceived(const boost::system::error_code & ecode, std::size_t bytes_transferred); - void HandleUpstreamWrite(const boost::system::error_code & ecode); - void HandleDownstreamWrite(const boost::system::error_code & ecode); - void UpstreamWrite(size_t len); - void DownstreamWrite(size_t len); + SocketsPipe(I2PService * owner, std::shared_ptr upstream, std::shared_ptr downstream): + I2PServiceHandler(owner), m_up(upstream), m_down(downstream) + { + boost::asio::socket_base::receive_buffer_size option(SOCKETS_PIPE_BUFFER_SIZE); + upstream->set_option(option); + downstream->set_option(option); + } + ~SocketsPipe() { Terminate(); } + + void Start() override + { + Transfer (m_up, m_down, m_upstream_to_down_buf, SOCKETS_PIPE_BUFFER_SIZE); // receive from upstream + Transfer (m_down, m_up, m_downstream_to_up_buf, SOCKETS_PIPE_BUFFER_SIZE); // receive from upstream + } private: - uint8_t m_upstream_to_down_buf[TCP_IP_PIPE_BUFFER_SIZE], m_downstream_to_up_buf[TCP_IP_PIPE_BUFFER_SIZE]; - uint8_t m_upstream_buf[TCP_IP_PIPE_BUFFER_SIZE], m_downstream_buf[TCP_IP_PIPE_BUFFER_SIZE]; - std::shared_ptr m_up, m_down; + + void Terminate() + { + if(Kill()) return; + if (m_up) + { + if (m_up->is_open()) + m_up->close(); + m_up = nullptr; + } + if (m_down) + { + if (m_down->is_open()) + m_down->close(); + m_down = nullptr; + } + Done(SocketsPipe::shared_from_this()); + } + + template + void Transfer (std::shared_ptr from, std::shared_ptr to, uint8_t * buf, size_t len) + { + if (!from || !to || !buf) return; + auto s = SocketsPipe::shared_from_this (); + from->async_read_some(boost::asio::buffer(buf, len), + [from, to, s, buf, len](const boost::system::error_code& ecode, std::size_t transferred) + { + if (ecode == boost::asio::error::operation_aborted) return; + if (!ecode) + { + boost::asio::async_write(*to, boost::asio::buffer(buf, transferred), boost::asio::transfer_all(), + [from, to, s, buf, len](const boost::system::error_code& ecode, std::size_t transferred) + { + (void) transferred; + if (ecode == boost::asio::error::operation_aborted) return; + if (!ecode) + s->Transfer (from, to, buf, len); + else + { + LogPrint(eLogWarning, "SocketsPipe: Write error:" , ecode.message()); + s->Terminate(); + } + }); + } + else + { + LogPrint(eLogWarning, "SocketsPipe: Read error:" , ecode.message()); + s->Terminate(); + } + }); + } + + private: + + uint8_t m_upstream_to_down_buf[SOCKETS_PIPE_BUFFER_SIZE], m_downstream_to_up_buf[SOCKETS_PIPE_BUFFER_SIZE]; + std::shared_ptr m_up; + std::shared_ptr m_down; }; - /* TODO: support IPv6 too */ - //This is a service that listens for connections on the IP network and interacts with I2P - class TCPIPAcceptor: public I2PService + template + std::shared_ptr CreateSocketsPipe (I2PService * owner, std::shared_ptr upstream, std::shared_ptr downstream) + { + return std::make_shared >(owner, upstream, downstream); + } + + //This is a service that listens for connections on the IP network or local socket and interacts with I2P + template + class ServiceAcceptor: public I2PService { public: - TCPIPAcceptor (const std::string& address, int port, std::shared_ptr localDestination = nullptr) : - I2PService(localDestination), - m_LocalEndpoint (boost::asio::ip::address::from_string(address), port), - m_Timer (GetService ()) {} - TCPIPAcceptor (const std::string& address, int port, i2p::data::SigningKeyType kt) : - I2PService(kt), - m_LocalEndpoint (boost::asio::ip::address::from_string(address), port), - m_Timer (GetService ()) {} - virtual ~TCPIPAcceptor () { TCPIPAcceptor::Stop(); } - //If you override this make sure you call it from the children - void Start (); - //If you override this make sure you call it from the children - void Stop (); - const boost::asio::ip::tcp::endpoint& GetLocalEndpoint () const { return m_LocalEndpoint; }; + ServiceAcceptor (const typename Protocol::endpoint& localEndpoint, std::shared_ptr localDestination = nullptr) : + I2PService(localDestination), m_LocalEndpoint (localEndpoint) {} + + virtual ~ServiceAcceptor () { Stop(); } + void Start () override + { + m_Acceptor.reset (new typename Protocol::acceptor (GetService (), m_LocalEndpoint)); + // update the local end point in case port has been set zero and got updated now + m_LocalEndpoint = m_Acceptor->local_endpoint(); + m_Acceptor->listen (); + Accept (); + } + void Stop () override + { + if (m_Acceptor) + { + m_Acceptor->close(); + m_Acceptor.reset (nullptr); + } + ClearHandlers(); + } + const typename Protocol::endpoint& GetLocalEndpoint () const { return m_LocalEndpoint; }; - virtual const char* GetName() { return "Generic TCP/IP accepting daemon"; } + const char* GetName() override { return "Generic TCP/IP accepting daemon"; } protected: - virtual std::shared_ptr CreateHandler(std::shared_ptr socket) = 0; + + virtual std::shared_ptr CreateHandler(std::shared_ptr socket) = 0; private: - void Accept(); - void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket); - boost::asio::ip::tcp::endpoint m_LocalEndpoint; - std::unique_ptr m_Acceptor; - boost::asio::deadline_timer m_Timer; + + void Accept() + { + auto newSocket = std::make_shared (GetService ()); + m_Acceptor->async_accept (*newSocket, + [newSocket, this](const boost::system::error_code& ecode) + { + if (ecode == boost::asio::error::operation_aborted) return; + if (!ecode) + { + LogPrint(eLogDebug, "ServiceAcceptor: ", GetName(), " accepted"); + auto handler = CreateHandler(newSocket); + if (handler) + { + AddHandler(handler); + handler->Handle(); + } + else + newSocket->close(); + Accept(); + } + else + LogPrint (eLogError, "ServiceAcceptor: ", GetName(), " closing socket on accept because: ", ecode.message ()); + }); + } + + private: + + typename Protocol::endpoint m_LocalEndpoint; + std::unique_ptr m_Acceptor; }; + + class TCPIPAcceptor: public ServiceAcceptor + { + public: + + TCPIPAcceptor (const std::string& address, uint16_t port, std::shared_ptr localDestination = nullptr) : + ServiceAcceptor (boost::asio::ip::tcp::endpoint (boost::asio::ip::make_address(address), port), localDestination) {} + }; } } diff --git a/libi2pd_client/I2PTunnel.cpp b/libi2pd_client/I2PTunnel.cpp index 290ce11e..d6436c78 100644 --- a/libi2pd_client/I2PTunnel.cpp +++ b/libi2pd_client/I2PTunnel.cpp @@ -1,9 +1,19 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include +#include #include "Base.h" #include "Log.h" #include "Destination.h" #include "ClientContext.h" #include "I2PTunnel.h" +#include "util.h" namespace i2p { @@ -11,7 +21,7 @@ namespace client { /** set standard socket options */ - static void I2PTunnelSetSocketOptions(std::shared_ptr socket) + static void I2PTunnelSetSocketOptions (std::shared_ptr socket) { if (socket && socket->is_open()) { @@ -21,9 +31,8 @@ namespace client } I2PTunnelConnection::I2PTunnelConnection (I2PService * owner, std::shared_ptr socket, - std::shared_ptr leaseSet, int port): - I2PServiceHandler(owner), m_Socket (socket), m_RemoteEndpoint (socket->remote_endpoint ()), - m_IsQuiet (true) + std::shared_ptr leaseSet, uint16_t port): + I2PServiceHandler(owner), m_Socket (socket), m_RemoteEndpoint (socket->remote_endpoint ()) { m_Stream = GetOwner()->GetLocalDestination ()->CreateStream (leaseSet, port); } @@ -31,15 +40,17 @@ namespace client I2PTunnelConnection::I2PTunnelConnection (I2PService * owner, std::shared_ptr socket, std::shared_ptr stream): I2PServiceHandler(owner), m_Socket (socket), m_Stream (stream), - m_RemoteEndpoint (socket->remote_endpoint ()), m_IsQuiet (true) + m_RemoteEndpoint (socket->remote_endpoint ()) { } I2PTunnelConnection::I2PTunnelConnection (I2PService * owner, std::shared_ptr stream, - std::shared_ptr socket, const boost::asio::ip::tcp::endpoint& target, bool quiet): - I2PServiceHandler(owner), m_Socket (socket), m_Stream (stream), - m_RemoteEndpoint (target), m_IsQuiet (quiet) + const boost::asio::ip::tcp::endpoint& target,std::shared_ptr sslCtx): + I2PServiceHandler(owner), m_Stream (stream), m_RemoteEndpoint (target) { + m_Socket = std::make_shared (owner->GetService ()); + if (sslCtx) + m_SSL = std::make_shared > (*m_Socket, *sslCtx); } I2PTunnelConnection::~I2PTunnelConnection () @@ -59,7 +70,7 @@ namespace client Receive (); } - static boost::asio::ip::address GetLoopbackAddressFor(const i2p::data::IdentHash & addr) + boost::asio::ip::address GetLoopbackAddressFor(const i2p::data::IdentHash & addr) { boost::asio::ip::address_v4::bytes_type bytes; const uint8_t * ident = addr; @@ -69,21 +80,27 @@ namespace client return ourIP; } - static void MapToLoopback(const std::shared_ptr & sock, const i2p::data::IdentHash & addr) +#ifdef __linux__ + static void MapToLoopback(std::shared_ptr sock, const i2p::data::IdentHash & addr) { - - // bind to 127.x.x.x address - // where x.x.x are first three bytes from ident - auto ourIP = GetLoopbackAddressFor(addr); - sock->bind (boost::asio::ip::tcp::endpoint (ourIP, 0)); - + if (sock) + { + // bind to 127.x.x.x address + // where x.x.x are first three bytes from ident + auto ourIP = GetLoopbackAddressFor(addr); + boost::system::error_code ec; + sock->bind (boost::asio::ip::tcp::endpoint (ourIP, 0), ec); + if (ec) + LogPrint (eLogError, "I2PTunnel: Can't bind ourIP to ", ourIP.to_string (), ": ", ec.message ()); + } } +#endif void I2PTunnelConnection::Connect (bool isUniqueLocal) { - I2PTunnelSetSocketOptions(m_Socket); if (m_Socket) { + I2PTunnelSetSocketOptions (m_Socket); #ifdef __linux__ if (isUniqueLocal && m_RemoteEndpoint.address ().is_v4 () && m_RemoteEndpoint.address ().to_v4 ().to_bytes ()[0] == 127) @@ -98,9 +115,26 @@ namespace client } } + void I2PTunnelConnection::Connect (const boost::asio::ip::address& localAddress) + { + if (m_Socket) + { + if (m_RemoteEndpoint.address().is_v6 ()) + m_Socket->open (boost::asio::ip::tcp::v6 ()); + else + m_Socket->open (boost::asio::ip::tcp::v4 ()); + boost::system::error_code ec; + m_Socket->bind (boost::asio::ip::tcp::endpoint (localAddress, 0), ec); + if (ec) + LogPrint (eLogError, "I2PTunnel: Can't bind to ", localAddress.to_string (), ": ", ec.message ()); + } + Connect (false); + } + void I2PTunnelConnection::Terminate () { if (Kill()) return; + if (m_SSL) m_SSL = nullptr; if (m_Stream) { m_Stream->Close (); @@ -115,43 +149,51 @@ namespace client void I2PTunnelConnection::Receive () { - m_Socket->async_read_some (boost::asio::buffer(m_Buffer, I2P_TUNNEL_CONNECTION_BUFFER_SIZE), - std::bind(&I2PTunnelConnection::HandleReceived, shared_from_this (), - std::placeholders::_1, std::placeholders::_2)); + if (m_SSL) + m_SSL->async_read_some (boost::asio::buffer(m_Buffer, I2P_TUNNEL_CONNECTION_BUFFER_SIZE), + std::bind(&I2PTunnelConnection::HandleReceive, shared_from_this (), + std::placeholders::_1, std::placeholders::_2)); + else + m_Socket->async_read_some (boost::asio::buffer(m_Buffer, I2P_TUNNEL_CONNECTION_BUFFER_SIZE), + std::bind(&I2PTunnelConnection::HandleReceive, shared_from_this (), + std::placeholders::_1, std::placeholders::_2)); } - void I2PTunnelConnection::HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred) + void I2PTunnelConnection::HandleReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) { if (ecode != boost::asio::error::operation_aborted) { - LogPrint (eLogError, "I2PTunnel: read error: ", ecode.message ()); + LogPrint (eLogError, "I2PTunnel: Read error: ", ecode.message ()); Terminate (); } } else + WriteToStream (m_Buffer, bytes_transferred); + } + + void I2PTunnelConnection::WriteToStream (const uint8_t * buf, size_t len) + { + if (m_Stream) { - if (m_Stream) - { - auto s = shared_from_this (); - m_Stream->AsyncSend (m_Buffer, bytes_transferred, - [s](const boost::system::error_code& ecode) - { - if (!ecode) - s->Receive (); - else - s->Terminate (); - }); + auto s = shared_from_this (); + m_Stream->AsyncSend (buf, len, + [s](const boost::system::error_code& ecode) + { + if (!ecode) + s->Receive (); + else + s->Terminate (); + }); } - } } void I2PTunnelConnection::HandleWrite (const boost::system::error_code& ecode) { if (ecode) { - LogPrint (eLogError, "I2PTunnel: write error: ", ecode.message ()); + LogPrint (eLogError, "I2PTunnel: Write error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate (); } @@ -168,12 +210,12 @@ namespace client { m_Stream->AsyncReceive (boost::asio::buffer (m_StreamBuffer, I2P_TUNNEL_CONNECTION_BUFFER_SIZE), std::bind (&I2PTunnelConnection::HandleStreamReceive, shared_from_this (), - std::placeholders::_1, std::placeholders::_2), + std::placeholders::_1, std::placeholders::_2), I2P_TUNNEL_CONNECTION_MAX_IDLE); } else // closed by peer { - // get remaning data + // get remaining data auto len = m_Stream->ReadSome (m_StreamBuffer, I2P_TUNNEL_CONNECTION_BUFFER_SIZE); if (len > 0) // still some data Write (m_StreamBuffer, len); @@ -189,7 +231,7 @@ namespace client { if (ecode != boost::asio::error::operation_aborted) { - LogPrint (eLogError, "I2PTunnel: stream read error: ", ecode.message ()); + LogPrint (eLogError, "I2PTunnel: Stream read error: ", ecode.message ()); if (bytes_transferred > 0) Write (m_StreamBuffer, bytes_transferred); // postpone termination else if (ecode == boost::asio::error::timed_out && m_Stream && m_Stream->IsOpen ()) @@ -206,36 +248,52 @@ namespace client void I2PTunnelConnection::Write (const uint8_t * buf, size_t len) { - boost::asio::async_write (*m_Socket, boost::asio::buffer (buf, len), boost::asio::transfer_all (), - std::bind (&I2PTunnelConnection::HandleWrite, shared_from_this (), std::placeholders::_1)); + if (m_SSL) + boost::asio::async_write (*m_SSL, boost::asio::buffer (buf, len), boost::asio::transfer_all (), + std::bind (&I2PTunnelConnection::HandleWrite, shared_from_this (), std::placeholders::_1)); + else + boost::asio::async_write (*m_Socket, boost::asio::buffer (buf, len), boost::asio::transfer_all (), + std::bind (&I2PTunnelConnection::HandleWrite, shared_from_this (), std::placeholders::_1)); } void I2PTunnelConnection::HandleConnect (const boost::system::error_code& ecode) { if (ecode) { - LogPrint (eLogError, "I2PTunnel: connect error: ", ecode.message ()); + LogPrint (eLogError, "I2PTunnel: Connect error: ", ecode.message ()); Terminate (); } else { - LogPrint (eLogDebug, "I2PTunnel: connected"); - if (m_IsQuiet) - StreamReceive (); + LogPrint (eLogDebug, "I2PTunnel: Connected"); + if (m_SSL) + m_SSL->async_handshake (boost::asio::ssl::stream_base::client, + std::bind (&I2PTunnelConnection::HandleHandshake, shared_from_this (), std::placeholders::_1)); else - { - // send destination first like received from I2P - std::string dest = m_Stream->GetRemoteIdentity ()->ToBase64 (); - dest += "\n"; - if(sizeof(m_StreamBuffer) >= dest.size()) { - memcpy (m_StreamBuffer, dest.c_str (), dest.size ()); - } - HandleStreamReceive (boost::system::error_code (), dest.size ()); - } - Receive (); + Established (); } } + void I2PTunnelConnection::HandleHandshake (const boost::system::error_code& ecode) + { + if (ecode) + { + LogPrint (eLogError, "I2PTunnel: Handshake error: ", ecode.message ()); + Terminate (); + } + else + { + LogPrint (eLogDebug, "I2PTunnel: SSL connected"); + Established (); + } + } + + void I2PTunnelConnection::Established () + { + StreamReceive (); + Receive (); + } + void I2PClientTunnelConnectionHTTP::Write (const uint8_t * buf, size_t len) { if (m_HeaderSent) @@ -257,7 +315,7 @@ namespace client if (!m_ConnectionSent && !line.compare(0, 10, "Connection")) { /* close connection, if not Connection: (U|u)pgrade (for websocket) */ - auto x = line.find("pgrade"); + auto x = line.find("pgrade"); if (x != std::string::npos && std::tolower(line[x - 1]) == 'u') m_OutHeader << line << "\r\n"; else @@ -271,31 +329,46 @@ namespace client m_ProxyConnectionSent = true; } else - m_OutHeader << line << "\n"; + m_OutHeader << line << "\n"; } } else + { + // insert incomplete line back + m_InHeader.clear (); + m_InHeader << line; break; + } } if (endOfHeader) { if (!m_ConnectionSent) m_OutHeader << "Connection: close\r\n"; - if (!m_ProxyConnectionSent) m_OutHeader << "Proxy-Connection: close\r\n"; + if (!m_ProxyConnectionSent) m_OutHeader << "Proxy-Connection: close\r\n"; m_OutHeader << "\r\n"; // end of header m_OutHeader << m_InHeader.str ().substr (m_InHeader.tellg ()); // data right after header m_InHeader.str (""); m_HeaderSent = true; I2PTunnelConnection::Write ((uint8_t *)m_OutHeader.str ().c_str (), m_OutHeader.str ().length ()); } + else if (m_OutHeader.tellp () < I2P_TUNNEL_HTTP_MAX_HEADER_SIZE) + StreamReceive (); // read more header + else + { + LogPrint (eLogError, "I2PTunnel: HTTP header exceeds max size ", I2P_TUNNEL_HTTP_MAX_HEADER_SIZE); + Terminate (); + } } } I2PServerTunnelConnectionHTTP::I2PServerTunnelConnectionHTTP (I2PService * owner, std::shared_ptr stream, - std::shared_ptr socket, - const boost::asio::ip::tcp::endpoint& target, const std::string& host): - I2PTunnelConnection (owner, stream, socket, target), m_Host (host), m_HeaderSent (false), m_From (stream->GetRemoteIdentity ()) + const boost::asio::ip::tcp::endpoint& target, const std::string& host, const std::string& XI2P, + std::shared_ptr sslCtx): + I2PTunnelConnection (owner, stream, target, sslCtx), m_Host (host), m_XI2P (XI2P), + m_HeaderSent (false), m_ResponseHeaderSent (false) { + if (sslCtx) + SSL_set_tlsext_host_name(GetSSL ()->native_handle(), host.c_str ()); } void I2PServerTunnelConnectionHTTP::Write (const uint8_t * buf, size_t len) @@ -307,30 +380,122 @@ namespace client m_InHeader.clear (); m_InHeader.write ((const char *)buf, len); std::string line; - bool endOfHeader = false; + bool endOfHeader = false, connection = false; while (!endOfHeader) { std::getline(m_InHeader, line); - if (!m_InHeader.fail ()) + if (m_InHeader.fail ()) break; + if (!m_InHeader.eof ()) { if (line == "\r") endOfHeader = true; else { - if (m_Host.length () > 0 && line.find ("Host:") != std::string::npos) + // strip up some headers + static const std::array excluded // list of excluded headers + { + "Keep-Alive:", "X-I2P" + }; + bool matched = false; + for (const auto& it: excluded) + if (boost::iequals (line.substr (0, it.length ()), it)) + { + matched = true; + break; + } + if (matched) continue; + + // replace some headers + if (!m_Host.empty () && boost::iequals (line.substr (0, 5), "Host:")) m_OutHeader << "Host: " << m_Host << "\r\n"; // override host - else + else if (boost::iequals (line.substr (0, 11), "Connection:")) + { + auto x = line.find("pgrade"); + if (x != std::string::npos && x && std::tolower(line[x - 1]) != 'u') // upgrade or Upgrade + m_OutHeader << line << "\n"; + else + m_OutHeader << "Connection: close\r\n"; + connection = true; + } + else // forward as is m_OutHeader << line << "\n"; } } else + { + // insert incomplete line back + m_InHeader.clear (); + m_InHeader << line; break; + } } - // add X-I2P fields - if (m_From) + + if (endOfHeader) { - m_OutHeader << X_I2P_DEST_B32 << ": " << context.GetAddressBook ().ToAddress(m_From->GetIdentHash ()) << "\r\n"; - m_OutHeader << X_I2P_DEST_HASH << ": " << m_From->GetIdentHash ().ToBase64 () << "\r\n"; - m_OutHeader << X_I2P_DEST_B64 << ": " << m_From->ToBase64 () << "\r\n"; + // add Connection if not presented + if (!connection) + m_OutHeader << "Connection: close\r\n"; + // add X-I2P fields + m_OutHeader << m_XI2P; + // end of header + m_OutHeader << "\r\n"; + + m_OutHeader << m_InHeader.str ().substr (m_InHeader.tellg ()); // data right after header + m_InHeader.str (""); + m_HeaderSent = true; + I2PTunnelConnection::Write ((uint8_t *)m_OutHeader.str ().c_str (), m_OutHeader.str ().length ()); + } + else if (m_OutHeader.tellp () < I2P_TUNNEL_HTTP_MAX_HEADER_SIZE) + StreamReceive (); // read more header + else + { + LogPrint (eLogError, "I2PTunnel: HTTP header exceeds max size ", I2P_TUNNEL_HTTP_MAX_HEADER_SIZE); + Terminate (); + } + } + } + + void I2PServerTunnelConnectionHTTP::WriteToStream (const uint8_t * buf, size_t len) + { + if (m_ResponseHeaderSent) + I2PTunnelConnection::WriteToStream (buf, len); + else + { + m_InHeader.clear (); + if (m_InHeader.str ().empty ()) m_OutHeader.str (""); // start of response + m_InHeader.write ((const char *)buf, len); + std::string line; + bool endOfHeader = false; + while (!endOfHeader) + { + std::getline(m_InHeader, line); + if (m_InHeader.fail ()) break; + if (!m_InHeader.eof ()) + { + if (line == "\r") endOfHeader = true; + else + { + static const std::array excluded // list of excluded headers + { + "Server:", "Date:", "X-Runtime:", "X-Powered-By:", "Proxy" + }; + bool matched = false; + for (const auto& it: excluded) + if (!line.compare(0, it.length (), it)) + { + matched = true; + break; + } + if (!matched) + m_OutHeader << line << "\n"; + } + } + else + { + // insert incomplete line back + m_InHeader.clear (); + m_InHeader << line; + break; + } } if (endOfHeader) @@ -338,16 +503,19 @@ namespace client m_OutHeader << "\r\n"; // end of header m_OutHeader << m_InHeader.str ().substr (m_InHeader.tellg ()); // data right after header m_InHeader.str (""); - m_HeaderSent = true; - I2PTunnelConnection::Write ((uint8_t *)m_OutHeader.str ().c_str (), m_OutHeader.str ().length ()); + m_ResponseHeaderSent = true; + I2PTunnelConnection::WriteToStream ((uint8_t *)m_OutHeader.str ().c_str (), m_OutHeader.str ().length ()); + m_OutHeader.str (""); } + else + Receive (); } } I2PTunnelConnectionIRC::I2PTunnelConnectionIRC (I2PService * owner, std::shared_ptr stream, - std::shared_ptr socket, - const boost::asio::ip::tcp::endpoint& target, const std::string& webircpass): - I2PTunnelConnection (owner, stream, socket, target), m_From (stream->GetRemoteIdentity ()), + const boost::asio::ip::tcp::endpoint& target, const std::string& webircpass, + std::shared_ptr sslCtx): + I2PTunnelConnection (owner, stream, target, sslCtx), m_From (stream->GetRemoteIdentity ()), m_NeedsWebIrc (webircpass.length() ? true : false), m_WebircPass (webircpass) { } @@ -358,7 +526,8 @@ namespace client if (m_NeedsWebIrc) { m_NeedsWebIrc = false; - m_OutPacket << "WEBIRC " << m_WebircPass << " cgiirc " << context.GetAddressBook ().ToAddress (m_From->GetIdentHash ()) << " " << GetSocket ()->local_endpoint ().address () << std::endl; + m_OutPacket << "WEBIRC " << m_WebircPass << " cgiirc " << context.GetAddressBook ().ToAddress (m_From->GetIdentHash ()) + << " " << GetSocket ()->local_endpoint ().address () << std::endl; } m_InPacket.clear (); @@ -389,12 +558,12 @@ namespace client } - /* This handler tries to stablish a connection with the desired server and dies if it fails to do so */ + /* This handler tries to establish a connection with the desired server and dies if it fails to do so */ class I2PClientTunnelHandler: public I2PServiceHandler, public std::enable_shared_from_this { public: I2PClientTunnelHandler (I2PClientTunnel * parent, std::shared_ptr address, - int destinationPort, std::shared_ptr socket): + uint16_t destinationPort, std::shared_ptr socket): I2PServiceHandler(parent), m_Address(address), m_DestinationPort (destinationPort), m_Socket(socket) {}; void Handle(); @@ -402,7 +571,7 @@ namespace client private: void HandleStreamRequestComplete (std::shared_ptr stream); std::shared_ptr m_Address; - int m_DestinationPort; + uint16_t m_DestinationPort; std::shared_ptr m_Socket; }; @@ -418,7 +587,7 @@ namespace client if (stream) { if (Kill()) return; - LogPrint (eLogDebug, "I2PTunnel: new connection"); + LogPrint (eLogDebug, "I2PTunnel: New connection"); auto connection = std::make_shared(GetOwner(), m_Socket, stream); GetOwner()->AddHandler (connection); connection->I2PConnect (); @@ -443,9 +612,9 @@ namespace client } I2PClientTunnel::I2PClientTunnel (const std::string& name, const std::string& destination, - const std::string& address, int port, std::shared_ptr localDestination, int destinationPort): + const std::string& address, uint16_t port, std::shared_ptr localDestination, uint16_t destinationPort): TCPIPAcceptor (address, port, localDestination), m_Name (name), m_Destination (destination), - m_DestinationPort (destinationPort) + m_DestinationPort (destinationPort), m_KeepAliveInterval (0) { } @@ -453,16 +622,26 @@ namespace client { TCPIPAcceptor::Start (); GetAddress (); + if (m_KeepAliveInterval) + ScheduleKeepAliveTimer (); } void I2PClientTunnel::Stop () { TCPIPAcceptor::Stop(); m_Address = nullptr; + if (m_KeepAliveTimer) m_KeepAliveTimer->cancel (); + } + + void I2PClientTunnel::SetKeepAliveInterval (uint32_t keepAliveInterval) + { + m_KeepAliveInterval = keepAliveInterval; + if (m_KeepAliveInterval) + m_KeepAliveTimer.reset (new boost::asio::deadline_timer (GetLocalDestination ()->GetService ())); } /* HACK: maybe we should create a caching IdentHash provider in AddressBook */ - std::shared_ptr I2PClientTunnel::GetAddress () + std::shared_ptr I2PClientTunnel::GetAddress () { if (!m_Address) { @@ -477,23 +656,50 @@ namespace client { auto address = GetAddress (); if (address) - return std::make_shared(this, address, m_DestinationPort, socket); + return std::make_shared(this, address, m_DestinationPort, socket); else return nullptr; } + void I2PClientTunnel::ScheduleKeepAliveTimer () + { + if (m_KeepAliveTimer) + { + m_KeepAliveTimer->expires_from_now (boost::posix_time::seconds (m_KeepAliveInterval)); + m_KeepAliveTimer->async_wait (std::bind (&I2PClientTunnel::HandleKeepAliveTimer, + this, std::placeholders::_1)); + } + } + + void I2PClientTunnel::HandleKeepAliveTimer (const boost::system::error_code& ecode) + { + if (ecode != boost::asio::error::operation_aborted) + { + if (m_Address && m_Address->IsValid ()) + { + if (m_Address->IsIdentHash ()) + GetLocalDestination ()->SendPing (m_Address->identHash); + else + GetLocalDestination ()->SendPing (m_Address->blindedPublicKey); + } + ScheduleKeepAliveTimer (); + } + } + I2PServerTunnel::I2PServerTunnel (const std::string& name, const std::string& address, - int port, std::shared_ptr localDestination, int inport, bool gzip): + uint16_t port, std::shared_ptr localDestination, uint16_t inport, bool gzip): I2PService (localDestination), m_IsUniqueLocal(true), m_Name (name), m_Address (address), m_Port (port), m_IsAccessList (false) { - m_PortDestination = localDestination->CreateStreamingDestination (inport > 0 ? inport : port, gzip); + m_PortDestination = localDestination->GetStreamingDestination (inport); + if (!m_PortDestination) // default destination + m_PortDestination = localDestination->CreateStreamingDestination (inport, gzip); } void I2PServerTunnel::Start () { m_Endpoint.port (m_Port); boost::system::error_code ec; - auto addr = boost::asio::ip::address::from_string (m_Address, ec); + auto addr = boost::asio::ip::make_address (m_Address, ec); if (!ec) { m_Endpoint.address (addr); @@ -502,7 +708,7 @@ namespace client else { auto resolver = std::make_shared(GetService ()); - resolver->async_resolve (boost::asio::ip::tcp::resolver::query (m_Address, ""), + resolver->async_resolve (m_Address, "", std::bind (&I2PServerTunnel::HandleResolve, this, std::placeholders::_1, std::placeholders::_2, resolver)); } @@ -510,21 +716,65 @@ namespace client void I2PServerTunnel::Stop () { + if (m_PortDestination) + m_PortDestination->ResetAcceptor (); + auto localDestination = GetLocalDestination (); + if (localDestination) + localDestination->StopAcceptingStreams (); + ClearHandlers (); } - void I2PServerTunnel::HandleResolve (const boost::system::error_code& ecode, boost::asio::ip::tcp::resolver::iterator it, + void I2PServerTunnel::HandleResolve (const boost::system::error_code& ecode, boost::asio::ip::tcp::resolver::results_type endpoints, std::shared_ptr resolver) { if (!ecode) { - auto addr = (*it).endpoint ().address (); - LogPrint (eLogInfo, "I2PTunnel: server tunnel ", (*it).host_name (), " has been resolved to ", addr); + bool found = false; + boost::asio::ip::tcp::endpoint ep; + if (m_LocalAddress) + { + for (const auto& it: endpoints) + { + ep = it; + if (!ep.address ().is_unspecified ()) + { + if (ep.address ().is_v4 ()) + { + if (m_LocalAddress->is_v4 ()) found = true; + } + else if (ep.address ().is_v6 ()) + { + if (i2p::util::net::IsYggdrasilAddress (ep.address ())) + { + if (i2p::util::net::IsYggdrasilAddress (*m_LocalAddress)) + found = true; + } + else if (m_LocalAddress->is_v6 ()) + found = true; + } + } + if (found) break; + } + } + else + { + found = true; + ep = *endpoints.begin (); // first available + } + if (!found) + { + LogPrint (eLogError, "I2PTunnel: Unable to resolve ", m_Address, " to compatible address"); + return; + } + + auto addr = ep.address (); + LogPrint (eLogInfo, "I2PTunnel: Server tunnel ", (*endpoints.begin ()).host_name (), " has been resolved to ", addr); m_Endpoint.address (addr); Accept (); } else - LogPrint (eLogError, "I2PTunnel: Unable to resolve server tunnel address: ", ecode.message ()); + LogPrint (eLogError, "I2PTunnel: Unable to resolve server tunnel address ", m_Address, ": ", ecode.message ()); } void I2PServerTunnel::SetAccessList (const std::set& accessList) @@ -533,6 +783,27 @@ namespace client m_IsAccessList = true; } + void I2PServerTunnel::SetLocalAddress (const std::string& localAddress) + { + boost::system::error_code ec; + auto addr = boost::asio::ip::make_address(localAddress, ec); + if (!ec) + m_LocalAddress.reset (new boost::asio::ip::address (addr)); + else + LogPrint (eLogError, "I2PTunnel: Can't set local address ", localAddress); + } + + void I2PServerTunnel::SetSSL (bool ssl) + { + if (ssl) + { + m_SSLCtx = std::make_shared (boost::asio::ssl::context::sslv23); + m_SSLCtx->set_verify_mode(boost::asio::ssl::context::verify_none); + } + else + m_SSLCtx = nullptr; + } + void I2PServerTunnel::Accept () { if (m_PortDestination) @@ -564,19 +835,22 @@ namespace client // new connection auto conn = CreateI2PConnection (stream); AddHandler (conn); - conn->Connect (m_IsUniqueLocal); + if (m_LocalAddress) + conn->Connect (*m_LocalAddress); + else + conn->Connect (m_IsUniqueLocal); } } std::shared_ptr I2PServerTunnel::CreateI2PConnection (std::shared_ptr stream) { - return std::make_shared (this, stream, std::make_shared (GetService ()), GetEndpoint ()); + return std::make_shared (this, stream, GetEndpoint (), m_SSLCtx); } I2PServerTunnelHTTP::I2PServerTunnelHTTP (const std::string& name, const std::string& address, - int port, std::shared_ptr localDestination, - const std::string& host, int inport, bool gzip): + uint16_t port, std::shared_ptr localDestination, + const std::string& host, uint16_t inport, bool gzip): I2PServerTunnel (name, address, port, localDestination, inport, gzip), m_Host (host) { @@ -584,13 +858,22 @@ namespace client std::shared_ptr I2PServerTunnelHTTP::CreateI2PConnection (std::shared_ptr stream) { - return std::make_shared (this, stream, - std::make_shared (GetService ()), GetEndpoint (), m_Host); + if (m_XI2P.empty () || stream->GetRemoteIdentity () != m_From.lock ()) + { + auto from = stream->GetRemoteIdentity (); + m_From = from; + std::stringstream ss; + ss << X_I2P_DEST_B32 << ": " << context.GetAddressBook ().ToAddress(from->GetIdentHash ()) << "\r\n"; + ss << X_I2P_DEST_HASH << ": " << from->GetIdentHash ().ToBase64 () << "\r\n"; + ss << X_I2P_DEST_B64 << ": " << from->ToBase64 () << "\r\n"; + m_XI2P = ss.str (); + } + return std::make_shared (this, stream, GetEndpoint (), m_Host, m_XI2P, GetSSLCtx ()); } I2PServerTunnelIRC::I2PServerTunnelIRC (const std::string& name, const std::string& address, - int port, std::shared_ptr localDestination, - const std::string& webircpass, int inport, bool gzip): + uint16_t port, std::shared_ptr localDestination, + const std::string& webircpass, uint16_t inport, bool gzip): I2PServerTunnel (name, address, port, localDestination, inport, gzip), m_WebircPass (webircpass) { @@ -598,281 +881,8 @@ namespace client std::shared_ptr I2PServerTunnelIRC::CreateI2PConnection (std::shared_ptr stream) { - return std::make_shared (this, stream, std::make_shared (GetService ()), GetEndpoint (), this->m_WebircPass); - } - - void I2PUDPServerTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) - { - std::lock_guard lock(m_SessionsMutex); - auto session = ObtainUDPSession(from, toPort, fromPort); - session->IPSocket.send_to(boost::asio::buffer(buf, len), m_RemoteEndpoint); - session->LastActivity = i2p::util::GetMillisecondsSinceEpoch(); - } - - void I2PUDPServerTunnel::ExpireStale(const uint64_t delta) { - std::lock_guard lock(m_SessionsMutex); - uint64_t now = i2p::util::GetMillisecondsSinceEpoch(); - auto itr = m_Sessions.begin(); - while(itr != m_Sessions.end()) { - if(now - (*itr)->LastActivity >= delta ) - itr = m_Sessions.erase(itr); - else - ++itr; - } - } - - void I2PUDPClientTunnel::ExpireStale(const uint64_t delta) { - std::lock_guard lock(m_SessionsMutex); - uint64_t now = i2p::util::GetMillisecondsSinceEpoch(); - std::vector removePorts; - for (const auto & s : m_Sessions) { - if (now - s.second.second >= delta) - removePorts.push_back(s.first); - } - for(auto port : removePorts) { - m_Sessions.erase(port); - } - } - - UDPSessionPtr I2PUDPServerTunnel::ObtainUDPSession(const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort) - { - auto ih = from.GetIdentHash(); - for (auto & s : m_Sessions ) - { - if ( s->Identity == ih) - { - /** found existing session */ - LogPrint(eLogDebug, "UDPServer: found session ", s->IPSocket.local_endpoint(), " ", ih.ToBase32()); - return s; - } - } - boost::asio::ip::address addr; - /** create new udp session */ - if(m_IsUniqueLocal && m_LocalAddress.is_loopback()) - { - auto ident = from.GetIdentHash(); - addr = GetLoopbackAddressFor(ident); - } - else - addr = m_LocalAddress; - boost::asio::ip::udp::endpoint ep(addr, 0); - m_Sessions.push_back(std::make_shared(ep, m_LocalDest, m_RemoteEndpoint, &ih, localPort, remotePort)); - auto & back = m_Sessions.back(); - return back; - } - - UDPSession::UDPSession(boost::asio::ip::udp::endpoint localEndpoint, - const std::shared_ptr & localDestination, - boost::asio::ip::udp::endpoint endpoint, const i2p::data::IdentHash * to, - uint16_t ourPort, uint16_t theirPort) : - m_Destination(localDestination->GetDatagramDestination()), - IPSocket(localDestination->GetService(), localEndpoint), - SendEndpoint(endpoint), - LastActivity(i2p::util::GetMillisecondsSinceEpoch()), - LocalPort(ourPort), - RemotePort(theirPort) - { - memcpy(Identity, to->data(), 32); - Receive(); - } - - void UDPSession::Receive() { - LogPrint(eLogDebug, "UDPSession: Receive"); - IPSocket.async_receive_from(boost::asio::buffer(m_Buffer, I2P_UDP_MAX_MTU), - FromEndpoint, std::bind(&UDPSession::HandleReceived, this, std::placeholders::_1, std::placeholders::_2)); - } - - void UDPSession::HandleReceived(const boost::system::error_code & ecode, std::size_t len) - { - if(!ecode) - { - LogPrint(eLogDebug, "UDPSession: forward ", len, "B from ", FromEndpoint); - LastActivity = i2p::util::GetMillisecondsSinceEpoch(); - m_Destination->SendDatagramTo(m_Buffer, len, Identity, LocalPort, RemotePort); - Receive(); - } else { - LogPrint(eLogError, "UDPSession: ", ecode.message()); - } - } - - I2PUDPServerTunnel::I2PUDPServerTunnel(const std::string & name, std::shared_ptr localDestination, - boost::asio::ip::address localAddress, boost::asio::ip::udp::endpoint forwardTo, uint16_t port) : - m_IsUniqueLocal(true), - m_Name(name), - m_LocalAddress(localAddress), - m_RemoteEndpoint(forwardTo) - { - m_LocalDest = localDestination; - m_LocalDest->Start(); - auto dgram = m_LocalDest->CreateDatagramDestination(); - dgram->SetReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5)); - } - - I2PUDPServerTunnel::~I2PUDPServerTunnel() - { - auto dgram = m_LocalDest->GetDatagramDestination(); - if (dgram) dgram->ResetReceiver(); - - LogPrint(eLogInfo, "UDPServer: done"); - } - - void I2PUDPServerTunnel::Start() { - m_LocalDest->Start(); - } - - std::vector > I2PUDPServerTunnel::GetSessions() - { - std::vector > sessions; - std::lock_guard lock(m_SessionsMutex); - - for ( UDPSessionPtr s : m_Sessions ) - { - if (!s->m_Destination) continue; - auto info = s->m_Destination->GetInfoForRemote(s->Identity); - if(!info) continue; - - auto sinfo = std::make_shared(); - sinfo->Name = m_Name; - sinfo->LocalIdent = std::make_shared(m_LocalDest->GetIdentHash().data()); - sinfo->RemoteIdent = std::make_shared(s->Identity.data()); - sinfo->CurrentIBGW = info->IBGW; - sinfo->CurrentOBEP = info->OBEP; - sessions.push_back(sinfo); - } - return sessions; - } - - I2PUDPClientTunnel::I2PUDPClientTunnel(const std::string & name, const std::string &remoteDest, - boost::asio::ip::udp::endpoint localEndpoint, - std::shared_ptr localDestination, - uint16_t remotePort) : - m_Name(name), - m_RemoteDest(remoteDest), - m_LocalDest(localDestination), - m_LocalEndpoint(localEndpoint), - m_RemoteIdent(nullptr), - m_ResolveThread(nullptr), - m_LocalSocket(localDestination->GetService(), localEndpoint), - RemotePort(remotePort), - m_cancel_resolve(false) - { - auto dgram = m_LocalDest->CreateDatagramDestination(); - dgram->SetReceiver(std::bind(&I2PUDPClientTunnel::HandleRecvFromI2P, this, - std::placeholders::_1, std::placeholders::_2, - std::placeholders::_3, std::placeholders::_4, - std::placeholders::_5)); - } - - void I2PUDPClientTunnel::Start() { - m_LocalDest->Start(); - if (m_ResolveThread == nullptr) - m_ResolveThread = new std::thread(std::bind(&I2PUDPClientTunnel::TryResolving, this)); - RecvFromLocal(); - } - - void I2PUDPClientTunnel::RecvFromLocal() - { - m_LocalSocket.async_receive_from(boost::asio::buffer(m_RecvBuff, I2P_UDP_MAX_MTU), - m_RecvEndpoint, std::bind(&I2PUDPClientTunnel::HandleRecvFromLocal, this, std::placeholders::_1, std::placeholders::_2)); - } - - void I2PUDPClientTunnel::HandleRecvFromLocal(const boost::system::error_code & ec, std::size_t transferred) - { - if(ec) { - LogPrint(eLogError, "UDP Client: ", ec.message()); - return; - } - if(!m_RemoteIdent) { - LogPrint(eLogWarning, "UDP Client: remote endpoint not resolved yet"); - RecvFromLocal(); - return; // drop, remote not resolved - } - auto remotePort = m_RecvEndpoint.port(); - auto itr = m_Sessions.find(remotePort); - if (itr == m_Sessions.end()) { - // track new udp convo - m_Sessions[remotePort] = {boost::asio::ip::udp::endpoint(m_RecvEndpoint), 0}; - } - // send off to remote i2p destination - LogPrint(eLogDebug, "UDP Client: send ", transferred, " to ", m_RemoteIdent->ToBase32(), ":", RemotePort); - m_LocalDest->GetDatagramDestination()->SendDatagramTo(m_RecvBuff, transferred, *m_RemoteIdent, remotePort, RemotePort); - // mark convo as active - m_Sessions[remotePort].second = i2p::util::GetMillisecondsSinceEpoch(); - RecvFromLocal(); - } - - std::vector > I2PUDPClientTunnel::GetSessions() - { - // TODO: implement - std::vector > infos; - return infos; - } - - void I2PUDPClientTunnel::TryResolving() { - LogPrint(eLogInfo, "UDP Tunnel: Trying to resolve ", m_RemoteDest); - - std::shared_ptr addr; - while(!(addr = context.GetAddressBook().GetAddress(m_RemoteDest)) && !m_cancel_resolve) - { - LogPrint(eLogWarning, "UDP Tunnel: failed to lookup ", m_RemoteDest); - std::this_thread::sleep_for(std::chrono::seconds(1)); - } - if(m_cancel_resolve) - { - LogPrint(eLogError, "UDP Tunnel: lookup of ", m_RemoteDest, " was cancelled"); - return; - } - if (!addr || !addr->IsIdentHash ()) - { - LogPrint(eLogError, "UDP Tunnel: ", m_RemoteDest, " not found"); - return; - } - m_RemoteIdent = new i2p::data::IdentHash; - *m_RemoteIdent = addr->identHash; - LogPrint(eLogInfo, "UDP Tunnel: resolved ", m_RemoteDest, " to ", m_RemoteIdent->ToBase32()); - } - - void I2PUDPClientTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) - { - if(m_RemoteIdent && from.GetIdentHash() == *m_RemoteIdent) - { - auto itr = m_Sessions.find(toPort); - // found convo ? - if(itr != m_Sessions.end()) - { - // found convo - if (len > 0) { - LogPrint(eLogDebug, "UDP Client: got ", len, "B from ", from.GetIdentHash().ToBase32()); - m_LocalSocket.send_to(boost::asio::buffer(buf, len), itr->second.first); - // mark convo as active - itr->second.second = i2p::util::GetMillisecondsSinceEpoch(); - } - } - else - LogPrint(eLogWarning, "UDP Client: not tracking udp session using port ", (int) toPort); - } - else - LogPrint(eLogWarning, "UDP Client: unwarranted traffic from ", from.GetIdentHash().ToBase32()); - } - - I2PUDPClientTunnel::~I2PUDPClientTunnel() { - auto dgram = m_LocalDest->GetDatagramDestination(); - if (dgram) dgram->ResetReceiver(); - - m_Sessions.clear(); - - if(m_LocalSocket.is_open()) - m_LocalSocket.close(); - - m_cancel_resolve = true; - - if(m_ResolveThread) - { - m_ResolveThread->join(); - delete m_ResolveThread; - m_ResolveThread = nullptr; - } - if (m_RemoteIdent) delete m_RemoteIdent; + return std::make_shared (this, stream, GetEndpoint (), m_WebircPass, GetSSLCtx ()); } } } + diff --git a/libi2pd_client/I2PTunnel.h b/libi2pd_client/I2PTunnel.h index 0d1ac9a8..7d4c3400 100644 --- a/libi2pd_client/I2PTunnel.h +++ b/libi2pd_client/I2PTunnel.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef I2PTUNNEL_H__ #define I2PTUNNEL_H__ @@ -8,9 +16,9 @@ #include #include #include +#include #include "Identity.h" #include "Destination.h" -#include "Datagram.h" #include "Streaming.h" #include "I2PService.h" #include "AddressBook.h" @@ -19,61 +27,78 @@ namespace i2p { namespace client { - const size_t I2P_TUNNEL_CONNECTION_BUFFER_SIZE = 65536; + const size_t I2P_TUNNEL_CONNECTION_BUFFER_SIZE = 16384; const int I2P_TUNNEL_CONNECTION_MAX_IDLE = 3600; // in seconds const int I2P_TUNNEL_DESTINATION_REQUEST_TIMEOUT = 10; // in seconds // for HTTP tunnels - const char X_I2P_DEST_HASH[] = "X-I2P-DestHash"; // hash in base64 - const char X_I2P_DEST_B64[] = "X-I2P-DestB64"; // full address in base64 - const char X_I2P_DEST_B32[] = "X-I2P-DestB32"; // .b32.i2p address + constexpr char X_I2P_DEST_HASH[] = "X-I2P-DestHash"; // hash in base64 + constexpr char X_I2P_DEST_B64[] = "X-I2P-DestB64"; // full address in base64 + constexpr char X_I2P_DEST_B32[] = "X-I2P-DestB32"; // .b32.i2p address + const int I2P_TUNNEL_HTTP_MAX_HEADER_SIZE = 8192; class I2PTunnelConnection: public I2PServiceHandler, public std::enable_shared_from_this { public: + I2PTunnelConnection (I2PService * owner, std::shared_ptr socket, - std::shared_ptr leaseSet, int port = 0); // to I2P + std::shared_ptr leaseSet, uint16_t port = 0); // to I2P I2PTunnelConnection (I2PService * owner, std::shared_ptr socket, std::shared_ptr stream); // to I2P using simplified API - I2PTunnelConnection (I2PService * owner, std::shared_ptr stream, std::shared_ptr socket, - const boost::asio::ip::tcp::endpoint& target, bool quiet = true); // from I2P + I2PTunnelConnection (I2PService * owner, std::shared_ptr stream, + const boost::asio::ip::tcp::endpoint& target, + std::shared_ptr sslCtx = nullptr); // from I2P ~I2PTunnelConnection (); void I2PConnect (const uint8_t * msg = nullptr, size_t len = 0); void Connect (bool isUniqueLocal = true); + void Connect (const boost::asio::ip::address& localAddress); protected: + + virtual void Established (); void Terminate (); void Receive (); - void HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); - virtual void Write (const uint8_t * buf, size_t len); // can be overloaded - void HandleWrite (const boost::system::error_code& ecode); - void StreamReceive (); void HandleStreamReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred); - void HandleConnect (const boost::system::error_code& ecode); - - std::shared_ptr GetSocket () const { return m_Socket; }; + virtual void Write (const uint8_t * buf, size_t len); // can be overloaded + virtual void WriteToStream (const uint8_t * buf, size_t len); // can be overloaded + std::shared_ptr GetSocket () const { return m_Socket; }; + std::shared_ptr GetStream () const { return m_Stream; }; + std::shared_ptr > GetSSL () const { return m_SSL; }; + uint8_t * GetStreamBuffer () { return m_StreamBuffer; }; + private: + + void HandleConnect (const boost::system::error_code& ecode); + void HandleHandshake (const boost::system::error_code& ecode); + void HandleReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred); + void HandleWrite (const boost::system::error_code& ecode); + + private: + uint8_t m_Buffer[I2P_TUNNEL_CONNECTION_BUFFER_SIZE], m_StreamBuffer[I2P_TUNNEL_CONNECTION_BUFFER_SIZE]; std::shared_ptr m_Socket; + std::shared_ptr > m_SSL; std::shared_ptr m_Stream; boost::asio::ip::tcp::endpoint m_RemoteEndpoint; - bool m_IsQuiet; // don't send destination }; class I2PClientTunnelConnectionHTTP: public I2PTunnelConnection { public: + I2PClientTunnelConnectionHTTP (I2PService * owner, std::shared_ptr socket, std::shared_ptr stream): I2PTunnelConnection (owner, socket, stream), m_HeaderSent (false), m_ConnectionSent (false), m_ProxyConnectionSent (false) {}; protected: - void Write (const uint8_t * buf, size_t len); + + void Write (const uint8_t * buf, size_t len) override; private: + std::stringstream m_InHeader, m_OutHeader; bool m_HeaderSent, m_ConnectionSent, m_ProxyConnectionSent; }; @@ -81,31 +106,37 @@ namespace client class I2PServerTunnelConnectionHTTP: public I2PTunnelConnection { public: + I2PServerTunnelConnectionHTTP (I2PService * owner, std::shared_ptr stream, - std::shared_ptr socket, - const boost::asio::ip::tcp::endpoint& target, const std::string& host); + const boost::asio::ip::tcp::endpoint& target, const std::string& host, const std::string& XI2P, + std::shared_ptr sslCtx = nullptr); protected: - void Write (const uint8_t * buf, size_t len); + + void Write (const uint8_t * buf, size_t len) override; + void WriteToStream (const uint8_t * buf, size_t len) override; private: - std::string m_Host; + + std::string m_Host, m_XI2P; std::stringstream m_InHeader, m_OutHeader; - bool m_HeaderSent; - std::shared_ptr m_From; + bool m_HeaderSent, m_ResponseHeaderSent; }; class I2PTunnelConnectionIRC: public I2PTunnelConnection { public: + I2PTunnelConnectionIRC (I2PService * owner, std::shared_ptr stream, - std::shared_ptr socket, - const boost::asio::ip::tcp::endpoint& target, const std::string& m_WebircPass); + const boost::asio::ip::tcp::endpoint& target, const std::string& m_WebircPass, + std::shared_ptr sslCtx = nullptr); protected: - void Write (const uint8_t * buf, size_t len); + + void Write (const uint8_t * buf, size_t len) override; private: + std::shared_ptr m_From; std::stringstream m_OutPacket, m_InPacket; bool m_NeedsWebIrc; @@ -116,155 +147,44 @@ namespace client class I2PClientTunnel: public TCPIPAcceptor { protected: + // Implements TCPIPAcceptor std::shared_ptr CreateHandler(std::shared_ptr socket); public: + I2PClientTunnel (const std::string& name, const std::string& destination, - const std::string& address, int port, std::shared_ptr localDestination, int destinationPort = 0); + const std::string& address, uint16_t port, std::shared_ptr localDestination, uint16_t destinationPort = 0); ~I2PClientTunnel () {} void Start (); void Stop (); const char* GetName() { return m_Name.c_str (); } + void SetKeepAliveInterval (uint32_t keepAliveInterval); private: + std::shared_ptr GetAddress (); + void ScheduleKeepAliveTimer (); + void HandleKeepAliveTimer (const boost::system::error_code& ecode); + private: + std::string m_Name, m_Destination; std::shared_ptr m_Address; - int m_DestinationPort; - }; - - - /** 2 minute timeout for udp sessions */ - const uint64_t I2P_UDP_SESSION_TIMEOUT = 1000 * 60 * 2; - - /** max size for i2p udp */ - const size_t I2P_UDP_MAX_MTU = i2p::datagram::MAX_DATAGRAM_SIZE; - - struct UDPSession - { - i2p::datagram::DatagramDestination * m_Destination; - boost::asio::ip::udp::socket IPSocket; - i2p::data::IdentHash Identity; - boost::asio::ip::udp::endpoint FromEndpoint; - boost::asio::ip::udp::endpoint SendEndpoint; - uint64_t LastActivity; - - uint16_t LocalPort; - uint16_t RemotePort; - - uint8_t m_Buffer[I2P_UDP_MAX_MTU]; - - UDPSession(boost::asio::ip::udp::endpoint localEndpoint, - const std::shared_ptr & localDestination, - boost::asio::ip::udp::endpoint remote, const i2p::data::IdentHash * ident, - uint16_t ourPort, uint16_t theirPort); - void HandleReceived(const boost::system::error_code & ecode, std::size_t len); - void Receive(); - }; - - - /** read only info about a datagram session */ - struct DatagramSessionInfo - { - /** the name of this forward */ - std::string Name; - /** ident hash of local destination */ - std::shared_ptr LocalIdent; - /** ident hash of remote destination */ - std::shared_ptr RemoteIdent; - /** ident hash of IBGW in use currently in this session or nullptr if none is set */ - std::shared_ptr CurrentIBGW; - /** ident hash of OBEP in use for this session or nullptr if none is set */ - std::shared_ptr CurrentOBEP; - /** i2p router's udp endpoint */ - boost::asio::ip::udp::endpoint LocalEndpoint; - /** client's udp endpoint */ - boost::asio::ip::udp::endpoint RemoteEndpoint; - /** how long has this converstation been idle in ms */ - uint64_t idle; - }; - - typedef std::shared_ptr UDPSessionPtr; - - /** server side udp tunnel, many i2p inbound to 1 ip outbound */ - class I2PUDPServerTunnel - { - public: - I2PUDPServerTunnel(const std::string & name, - std::shared_ptr localDestination, - boost::asio::ip::address localAddress, - boost::asio::ip::udp::endpoint forwardTo, uint16_t port); - ~I2PUDPServerTunnel(); - /** expire stale udp conversations */ - void ExpireStale(const uint64_t delta=I2P_UDP_SESSION_TIMEOUT); - void Start(); - const char * GetName() const { return m_Name.c_str(); } - std::vector > GetSessions(); - std::shared_ptr GetLocalDestination () const { return m_LocalDest; } - - void SetUniqueLocal(bool isUniqueLocal = true) { m_IsUniqueLocal = isUniqueLocal; } - - private: - void HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); - UDPSessionPtr ObtainUDPSession(const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort); - - private: - bool m_IsUniqueLocal; - const std::string m_Name; - boost::asio::ip::address m_LocalAddress; - boost::asio::ip::udp::endpoint m_RemoteEndpoint; - std::mutex m_SessionsMutex; - std::vector m_Sessions; - std::shared_ptr m_LocalDest; - }; - - class I2PUDPClientTunnel - { - public: - I2PUDPClientTunnel(const std::string & name, const std::string &remoteDest, - boost::asio::ip::udp::endpoint localEndpoint, std::shared_ptr localDestination, - uint16_t remotePort); - ~I2PUDPClientTunnel(); - void Start(); - const char * GetName() const { return m_Name.c_str(); } - std::vector > GetSessions(); - - bool IsLocalDestination(const i2p::data::IdentHash & destination) const { return destination == m_LocalDest->GetIdentHash(); } - - std::shared_ptr GetLocalDestination () const { return m_LocalDest; } - void ExpireStale(const uint64_t delta=I2P_UDP_SESSION_TIMEOUT); - - private: - typedef std::pair UDPConvo; - void RecvFromLocal(); - void HandleRecvFromLocal(const boost::system::error_code & e, std::size_t transferred); - void HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); - void TryResolving(); - const std::string m_Name; - std::mutex m_SessionsMutex; - std::map m_Sessions; // maps i2p port -> local udp convo - const std::string m_RemoteDest; - std::shared_ptr m_LocalDest; - const boost::asio::ip::udp::endpoint m_LocalEndpoint; - i2p::data::IdentHash * m_RemoteIdent; - std::thread * m_ResolveThread; - boost::asio::ip::udp::socket m_LocalSocket; - boost::asio::ip::udp::endpoint m_RecvEndpoint; - uint8_t m_RecvBuff[I2P_UDP_MAX_MTU]; - uint16_t RemotePort; - bool m_cancel_resolve; + uint16_t m_DestinationPort; + uint32_t m_KeepAliveInterval; + std::unique_ptr m_KeepAliveTimer; }; class I2PServerTunnel: public I2PService { public: - I2PServerTunnel (const std::string& name, const std::string& address, int port, - std::shared_ptr localDestination, int inport = 0, bool gzip = true); + + I2PServerTunnel (const std::string& name, const std::string& address, uint16_t port, + std::shared_ptr localDestination, uint16_t inport = 0, bool gzip = true); void Start (); void Stop (); @@ -274,15 +194,21 @@ namespace client void SetUniqueLocal (bool isUniqueLocal) { m_IsUniqueLocal = isUniqueLocal; } bool IsUniqueLocal () const { return m_IsUniqueLocal; } + void SetSSL (bool ssl); + std::shared_ptr GetSSLCtx () const { return m_SSLCtx; }; + + void SetLocalAddress (const std::string& localAddress); + const std::string& GetAddress() const { return m_Address; } - int GetPort () const { return m_Port; }; + uint16_t GetPort () const { return m_Port; }; uint16_t GetLocalPort () const { return m_PortDestination->GetLocalPort (); }; const boost::asio::ip::tcp::endpoint& GetEndpoint () const { return m_Endpoint; } const char* GetName() { return m_Name.c_str (); } private: - void HandleResolve (const boost::system::error_code& ecode, boost::asio::ip::tcp::resolver::iterator it, + + void HandleResolve (const boost::system::error_code& ecode, boost::asio::ip::tcp::resolver::results_type endpoints, std::shared_ptr resolver); void Accept (); @@ -290,42 +216,54 @@ namespace client virtual std::shared_ptr CreateI2PConnection (std::shared_ptr stream); private: + bool m_IsUniqueLocal; std::string m_Name, m_Address; - int m_Port; + uint16_t m_Port; boost::asio::ip::tcp::endpoint m_Endpoint; std::shared_ptr m_PortDestination; std::set m_AccessList; bool m_IsAccessList; + std::unique_ptr m_LocalAddress; + std::shared_ptr m_SSLCtx; }; class I2PServerTunnelHTTP: public I2PServerTunnel { public: - I2PServerTunnelHTTP (const std::string& name, const std::string& address, int port, + + I2PServerTunnelHTTP (const std::string& name, const std::string& address, uint16_t port, std::shared_ptr localDestination, const std::string& host, - int inport = 0, bool gzip = true); + uint16_t inport = 0, bool gzip = true); private: + std::shared_ptr CreateI2PConnection (std::shared_ptr stream); private: - std::string m_Host; + + std::string m_Host, m_XI2P; + std::weak_ptr m_From; }; class I2PServerTunnelIRC: public I2PServerTunnel { public: - I2PServerTunnelIRC (const std::string& name, const std::string& address, int port, + + I2PServerTunnelIRC (const std::string& name, const std::string& address, uint16_t port, std::shared_ptr localDestination, const std::string& webircpass, - int inport = 0, bool gzip = true); + uint16_t inport = 0, bool gzip = true); private: + std::shared_ptr CreateI2PConnection (std::shared_ptr stream); private: + std::string m_WebircPass; }; + + boost::asio::ip::address GetLoopbackAddressFor(const i2p::data::IdentHash & addr); } } diff --git a/libi2pd_client/MatchedDestination.cpp b/libi2pd_client/MatchedDestination.cpp index fa08ec51..40752f5b 100644 --- a/libi2pd_client/MatchedDestination.cpp +++ b/libi2pd_client/MatchedDestination.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include "MatchedDestination.h" #include "Log.h" #include "ClientContext.h" @@ -8,16 +16,16 @@ namespace i2p namespace client { MatchedTunnelDestination::MatchedTunnelDestination(const i2p::data::PrivateKeys & keys, const std::string & remoteName, const std::map * params) - : ClientDestination(keys, false, params), + : RunnableClientDestination(keys, false, params), m_RemoteName(remoteName) {} void MatchedTunnelDestination::ResolveCurrentLeaseSet() { - auto addr = i2p::client::context.GetAddressBook().GetAddress (m_RemoteName); + auto addr = i2p::client::context.GetAddressBook().GetAddress (m_RemoteName); if(addr && addr->IsIdentHash ()) { - m_RemoteIdent = addr->identHash; + m_RemoteIdent = addr->identHash; auto ls = FindLeaseSet(m_RemoteIdent); if(ls) HandleFoundCurrentLeaseSet(ls); @@ -25,89 +33,76 @@ namespace client RequestDestination(m_RemoteIdent, std::bind(&MatchedTunnelDestination::HandleFoundCurrentLeaseSet, this, std::placeholders::_1)); } else - LogPrint(eLogWarning, "Destination: failed to resolve ", m_RemoteName); + LogPrint(eLogWarning, "Destination: Failed to resolve ", m_RemoteName); } void MatchedTunnelDestination::HandleFoundCurrentLeaseSet(std::shared_ptr ls) { if(ls) { - LogPrint(eLogDebug, "Destination: resolved remote lease set for ", m_RemoteName); + LogPrint(eLogDebug, "Destination: Resolved remote lease set for ", m_RemoteName); m_RemoteLeaseSet = ls; } else { m_ResolveTimer->expires_from_now(boost::posix_time::seconds(1)); m_ResolveTimer->async_wait([&](const boost::system::error_code & ec) { - if(!ec) ResolveCurrentLeaseSet(); + if(!ec) ResolveCurrentLeaseSet(); }); } } - bool MatchedTunnelDestination::Start() + void MatchedTunnelDestination::Start() { - if(ClientDestination::Start()) - { - m_ResolveTimer = std::make_shared(GetService()); - GetTunnelPool()->SetCustomPeerSelector(this); - ResolveCurrentLeaseSet(); - return true; - } - else - return false; + ClientDestination::Start(); + m_ResolveTimer = std::make_shared(GetService()); + GetTunnelPool()->SetCustomPeerSelector(this); + ResolveCurrentLeaseSet(); } - bool MatchedTunnelDestination::Stop() + void MatchedTunnelDestination::Stop() { - if(ClientDestination::Stop()) - { - if(m_ResolveTimer) - m_ResolveTimer->cancel(); - return true; - } - else - return false; + ClientDestination::Stop(); + if(m_ResolveTimer) + m_ResolveTimer->cancel(); } bool MatchedTunnelDestination::SelectPeers(i2p::tunnel::Path & path, int hops, bool inbound) { auto pool = GetTunnelPool(); - if(!i2p::tunnel::StandardSelectPeers(path, hops, inbound, std::bind(&i2p::tunnel::TunnelPool::SelectNextHop, pool, std::placeholders::_1))) + if(!pool || !pool->StandardSelectPeers(path, hops, inbound, + std::bind(&i2p::tunnel::TunnelPool::SelectNextHop, pool, std::placeholders::_1, + std::placeholders::_2, std::placeholders::_3))) return false; // more here for outbound tunnels if(!inbound && m_RemoteLeaseSet) { if(m_RemoteLeaseSet->IsExpired()) - { ResolveCurrentLeaseSet(); - } if(m_RemoteLeaseSet && !m_RemoteLeaseSet->IsExpired()) { // remote lease set is good auto leases = m_RemoteLeaseSet->GetNonExpiredLeases(); // pick lease std::shared_ptr obep; - while(!obep && leases.size() > 0) { + while(!obep && leases.size() > 0) + { auto idx = rand() % leases.size(); auto lease = leases[idx]; obep = i2p::data::netdb.FindRouter(lease->tunnelGateway); leases.erase(leases.begin()+idx); } - if(obep) { - path.push_back(obep->GetRouterIdentity()); - LogPrint(eLogDebug, "Destination: found OBEP matching IBGW"); + if(obep) + { + path.Add (obep); + LogPrint(eLogDebug, "Destination: Found OBEP matching IBGW"); } else - LogPrint(eLogWarning, "Destination: could not find proper IBGW for matched outbound tunnel"); + LogPrint(eLogWarning, "Destination: Could not find proper IBGW for matched outbound tunnel"); } } return true; } - - bool MatchedTunnelDestination::OnBuildResult(const i2p::tunnel::Path & path, bool inbound, i2p::tunnel::TunnelBuildResult result) - { - return true; - } } } diff --git a/libi2pd_client/MatchedDestination.h b/libi2pd_client/MatchedDestination.h index bbeeb503..30ad8942 100644 --- a/libi2pd_client/MatchedDestination.h +++ b/libi2pd_client/MatchedDestination.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2020, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef MATCHED_DESTINATION_H_ #define MATCHED_DESTINATION_H_ #include "Destination.h" @@ -8,27 +16,30 @@ namespace i2p namespace client { /** - client tunnel that uses same OBEP as IBGW of each remote lease for a remote destination + * client tunnel that uses same OBEP as IBGW of each remote lease for a remote destination */ - class MatchedTunnelDestination : public ClientDestination, public i2p::tunnel::ITunnelPeerSelector + class MatchedTunnelDestination : public RunnableClientDestination, public i2p::tunnel::ITunnelPeerSelector { - public: - MatchedTunnelDestination(const i2p::data::PrivateKeys& keys, const std::string & remoteName, const std::map * params = nullptr); - bool Start(); - bool Stop(); + public: - bool SelectPeers(i2p::tunnel::Path & peers, int hops, bool inbound); - bool OnBuildResult(const i2p::tunnel::Path & peers, bool inbound, i2p::tunnel::TunnelBuildResult result); + MatchedTunnelDestination(const i2p::data::PrivateKeys& keys, const std::string & remoteName, + const std::map * params = nullptr); + void Start(); + void Stop(); - private: - void ResolveCurrentLeaseSet(); - void HandleFoundCurrentLeaseSet(std::shared_ptr ls); + bool SelectPeers(i2p::tunnel::Path & peers, int hops, bool inbound); - private: - std::string m_RemoteName; - i2p::data::IdentHash m_RemoteIdent; - std::shared_ptr m_RemoteLeaseSet; - std::shared_ptr m_ResolveTimer; + private: + + void ResolveCurrentLeaseSet(); + void HandleFoundCurrentLeaseSet(std::shared_ptr ls); + + private: + + std::string m_RemoteName; + i2p::data::IdentHash m_RemoteIdent; + std::shared_ptr m_RemoteLeaseSet; + std::shared_ptr m_ResolveTimer; }; } } diff --git a/libi2pd_client/SAM.cpp b/libi2pd_client/SAM.cpp index acb9ea80..2c0f8d92 100644 --- a/libi2pd_client/SAM.cpp +++ b/libi2pd_client/SAM.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #ifdef _MSC_VER @@ -17,7 +25,7 @@ namespace client { SAMSocket::SAMSocket (SAMBridge& owner): m_Owner (owner), m_Socket(owner.GetService()), m_Timer (m_Owner.GetService ()), - m_BufferOffset (0), + m_BufferOffset (0), m_SocketType (eSAMSocketTypeUnknown), m_IsSilent (false), m_IsAccepting (false), m_Stream (nullptr) { @@ -26,7 +34,7 @@ namespace client SAMSocket::~SAMSocket () { m_Stream = nullptr; - } + } void SAMSocket::Terminate (const char* reason) { @@ -35,27 +43,25 @@ namespace client m_Stream->AsyncClose (); m_Stream = nullptr; } - auto Session = m_Owner.FindSession(m_ID); switch (m_SocketType) { case eSAMSocketTypeSession: m_Owner.CloseSession (m_ID); break; case eSAMSocketTypeStream: - { - break; - } + break; case eSAMSocketTypeAcceptor: + case eSAMSocketTypeForward: { - if (Session) + auto session = m_Owner.FindSession(m_ID); + if (session) { - if (m_IsAccepting && Session->localDestination) - Session->localDestination->StopAcceptingStreams (); + if (m_IsAccepting && session->GetLocalDestination ()) + session->GetLocalDestination ()->StopAcceptingStreams (); } break; } - default: - ; + default: ; } m_SocketType = eSAMSocketTypeTerminated; if (m_Socket.is_open ()) @@ -68,7 +74,7 @@ namespace client } void SAMSocket::ReceiveHandshake () - { + { m_Socket.async_read_some (boost::asio::buffer(m_Buffer, SAM_SOCKET_BUFFER_SIZE), std::bind(&SAMSocket::HandleHandshakeReceived, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); @@ -93,7 +99,7 @@ namespace client { if (ecode) { - LogPrint (eLogError, "SAM: handshake read error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Handshake read error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("SAM: handshake read error"); } @@ -103,7 +109,7 @@ namespace client char * eol = (char *)memchr (m_Buffer, '\n', bytes_transferred); if (eol) *eol = 0; - LogPrint (eLogDebug, "SAM: handshake ", m_Buffer); + LogPrint (eLogDebug, "SAM: Handshake ", m_Buffer); char * separator = strchr (m_Buffer, ' '); if (separator) { @@ -152,7 +158,7 @@ namespace client size_t l = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_HANDSHAKE_REPLY, version.c_str ()); #endif boost::asio::async_write (m_Socket, boost::asio::buffer (m_Buffer, l), boost::asio::transfer_all (), - std::bind(&SAMSocket::HandleHandshakeReplySent, shared_from_this (), + std::bind(&SAMSocket::HandleHandshakeReplySent, shared_from_this (), std::placeholders::_1, std::placeholders::_2)); } else @@ -160,7 +166,7 @@ namespace client } else { - LogPrint (eLogError, "SAM: handshake mismatch"); + LogPrint (eLogError, "SAM: Handshake mismatch"); Terminate ("SAM: handshake mismatch"); } } @@ -170,12 +176,12 @@ namespace client { return id == m_ID; } - + void SAMSocket::HandleHandshakeReplySent (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) { - LogPrint (eLogError, "SAM: handshake reply send error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Handshake reply send error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("SAM: handshake reply send error"); } @@ -191,7 +197,7 @@ namespace client { LogPrint (eLogDebug, "SAMSocket::SendMessageReply, close=",close?"true":"false", " reason: ", msg); - if (!m_IsSilent) + if (!m_IsSilent || m_SocketType == eSAMSocketTypeForward) boost::asio::async_write (m_Socket, boost::asio::buffer (msg, len), boost::asio::transfer_all (), std::bind(&SAMSocket::HandleMessageReplySent, shared_from_this (), std::placeholders::_1, std::placeholders::_2, close)); @@ -208,7 +214,7 @@ namespace client { if (ecode) { - LogPrint (eLogError, "SAM: reply send error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Reply send error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("SAM: reply send error"); } @@ -225,7 +231,7 @@ namespace client { if (ecode) { - LogPrint (eLogError, "SAM: read error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Read error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("SAM: read error"); } @@ -239,6 +245,7 @@ namespace client char * eol = (char *)memchr (m_Buffer, '\n', bytes_transferred); if (eol) { + if (eol > m_Buffer && eol[-1] == '\r') eol--; *eol = 0; char * separator = strchr (m_Buffer, ' '); if (separator) @@ -255,11 +262,17 @@ namespace client ProcessStreamConnect (separator + 1, bytes_transferred - (separator - m_Buffer) - 1, bytes_transferred - (eol - m_Buffer) - 1); else if (!strcmp (m_Buffer, SAM_STREAM_ACCEPT)) ProcessStreamAccept (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); + else if (!strcmp (m_Buffer, SAM_STREAM_FORWARD)) + ProcessStreamForward (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); else if (!strcmp (m_Buffer, SAM_DEST_GENERATE)) ProcessDestGenerate (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); else if (!strcmp (m_Buffer, SAM_NAMING_LOOKUP)) ProcessNamingLookup (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); - else if (!strcmp (m_Buffer, SAM_DATAGRAM_SEND)) + else if (!strcmp (m_Buffer, SAM_SESSION_ADD)) + ProcessSessionAdd (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); + else if (!strcmp (m_Buffer, SAM_SESSION_REMOVE)) + ProcessSessionRemove (separator + 1, bytes_transferred - (separator - m_Buffer) - 1); + else if (!strcmp (m_Buffer, SAM_DATAGRAM_SEND) || !strcmp (m_Buffer, SAM_RAW_SEND)) { size_t len = bytes_transferred - (separator - m_Buffer) - 1; size_t processed = ProcessDatagramSend (separator + 1, len, eol + 1); @@ -280,20 +293,20 @@ namespace client } else { - LogPrint (eLogError, "SAM: unexpected message ", m_Buffer); + LogPrint (eLogError, "SAM: Unexpected message ", m_Buffer); Terminate ("SAM: unexpected message"); } } else { - LogPrint (eLogError, "SAM: malformed message ", m_Buffer); + LogPrint (eLogError, "SAM: Malformed message ", m_Buffer); Terminate ("malformed message"); } } else { - LogPrint (eLogWarning, "SAM: incomplete message ", bytes_transferred); + LogPrint (eLogWarning, "SAM: Incomplete message ", bytes_transferred); m_BufferOffset = bytes_transferred; // try to receive remaining message Receive (); @@ -316,7 +329,7 @@ namespace client void SAMSocket::ProcessSessionCreate (char * buf, size_t len) { - LogPrint (eLogDebug, "SAM: session create: ", buf); + LogPrint (eLogDebug, "SAM: Session create: ", buf); std::map params; ExtractParams (buf, params); std::string& style = params[SAM_PARAM_STYLE]; @@ -337,29 +350,42 @@ namespace client return; } + SAMSessionType type = eSAMSessionTypeUnknown; + if (style == SAM_VALUE_STREAM) type = eSAMSessionTypeStream; + else if (style == SAM_VALUE_DATAGRAM) type = eSAMSessionTypeDatagram; + else if (style == SAM_VALUE_RAW) type = eSAMSessionTypeRaw; + else if (style == SAM_VALUE_MASTER) type = eSAMSessionTypeMaster; + if (type == eSAMSessionTypeUnknown) + { + // unknown style + SendSessionI2PError("Unknown STYLE"); + return; + } + std::shared_ptr forward = nullptr; - if (style == SAM_VALUE_DATAGRAM && params.find(SAM_VALUE_HOST) != params.end() && params.find(SAM_VALUE_PORT) != params.end()) + if ((type == eSAMSessionTypeDatagram || type == eSAMSessionTypeRaw) && + params.find(SAM_PARAM_HOST) != params.end() && params.find(SAM_PARAM_PORT) != params.end()) { // udp forward selected boost::system::error_code e; // TODO: support hostnames in udp forward - auto addr = boost::asio::ip::address::from_string(params[SAM_VALUE_HOST], e); + auto addr = boost::asio::ip::make_address(params[SAM_PARAM_HOST], e); if (e) { // not an ip address - SendI2PError("Invalid IP Address in HOST"); + SendSessionI2PError("Invalid IP Address in HOST"); return; } - auto port = std::stoi(params[SAM_VALUE_PORT]); + auto port = std::stoi(params[SAM_PARAM_PORT]); if (port == -1) { - SendI2PError("Invalid port"); + SendSessionI2PError("Invalid port"); return; } forward = std::make_shared(addr, port); } - + //ensure we actually received a destination if (destination.empty()) { @@ -368,7 +394,7 @@ namespace client } if (destination != SAM_VALUE_TRANSIENT) - { + { //ensure it's a base64 string i2p::data::PrivateKeys keys; if (!keys.FromBase64(destination)) @@ -376,22 +402,31 @@ namespace client SendMessageReply(SAM_SESSION_STATUS_INVALID_KEY, strlen(SAM_SESSION_STATUS_INVALID_KEY), true); return; } - } + } // create destination - auto session = m_Owner.CreateSession (id, destination == SAM_VALUE_TRANSIENT ? "" : destination, ¶ms); + auto session = m_Owner.CreateSession (id, type, destination == SAM_VALUE_TRANSIENT ? "" : destination, ¶ms); if (session) { m_SocketType = eSAMSocketTypeSession; - if (style == SAM_VALUE_DATAGRAM) + if (type == eSAMSessionTypeDatagram || type == eSAMSessionTypeRaw) { session->UDPEndpoint = forward; - auto dest = session->localDestination->CreateDatagramDestination (); - dest->SetReceiver (std::bind (&SAMSocket::HandleI2PDatagramReceive, shared_from_this (), - std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5)); + auto dest = session->GetLocalDestination ()->CreateDatagramDestination (); + auto port = forward ? std::stoi(params[SAM_PARAM_PORT]) : 0; + if (type == eSAMSessionTypeDatagram) + dest->SetReceiver (std::bind (&SAMSocket::HandleI2PDatagramReceive, shared_from_this (), + std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5), + port + ); + else // raw + dest->SetRawReceiver (std::bind (&SAMSocket::HandleI2PRawDatagramReceive, shared_from_this (), + std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4), + port + ); } - if (session->localDestination->IsReady ()) + if (session->GetLocalDestination ()->IsReady ()) SendSessionCreateReplyOk (); else { @@ -408,18 +443,23 @@ namespace client { if (ecode != boost::asio::error::operation_aborted) { - auto session = m_Owner.FindSession(m_ID); - if(session) + if (m_Socket.is_open ()) { - if (session->localDestination->IsReady ()) - SendSessionCreateReplyOk (); - else + auto session = m_Owner.FindSession(m_ID); + if(session) { - m_Timer.expires_from_now (boost::posix_time::seconds(SAM_SESSION_READINESS_CHECK_INTERVAL)); - m_Timer.async_wait (std::bind (&SAMSocket::HandleSessionReadinessCheckTimer, - shared_from_this (), std::placeholders::_1)); + if (session->GetLocalDestination ()->IsReady ()) + SendSessionCreateReplyOk (); + else + { + m_Timer.expires_from_now (boost::posix_time::seconds(SAM_SESSION_READINESS_CHECK_INTERVAL)); + m_Timer.async_wait (std::bind (&SAMSocket::HandleSessionReadinessCheckTimer, + shared_from_this (), std::placeholders::_1)); + } } } + else + Terminate ("SAM: session socket closed"); } } @@ -428,15 +468,11 @@ namespace client auto session = m_Owner.FindSession(m_ID); if (session) { - uint8_t buf[1024]; - char priv[1024]; - size_t l = session->localDestination->GetPrivateKeys ().ToBuffer (buf, 1024); - size_t l1 = i2p::data::ByteStreamToBase64 (buf, l, priv, 1024); - priv[l1] = 0; + std::string priv = session->GetLocalDestination ()->GetPrivateKeys ().ToBase64 (); #ifdef _MSC_VER - size_t l2 = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_CREATE_REPLY_OK, priv); + size_t l2 = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_CREATE_REPLY_OK, priv.c_str ()); #else - size_t l2 = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_CREATE_REPLY_OK, priv); + size_t l2 = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_CREATE_REPLY_OK, priv.c_str ()); #endif SendMessageReply (m_Buffer, l2, false); } @@ -444,7 +480,12 @@ namespace client void SAMSocket::ProcessStreamConnect (char * buf, size_t len, size_t rem) { - LogPrint (eLogDebug, "SAM: stream connect: ", buf); + LogPrint (eLogDebug, "SAM: Stream connect: ", buf); + if ( m_SocketType != eSAMSocketTypeUnknown) + { + SendSessionI2PError ("Socket already in use"); + return; + } std::map params; ExtractParams (buf, params); std::string& id = params[SAM_PARAM_ID]; @@ -463,20 +504,43 @@ namespace client else m_BufferOffset = 0; - auto dest = std::make_shared (); - size_t l = dest->FromBase64(destination); - if (l > 0) + std::shared_ptr addr; + if (destination.find(".i2p") != std::string::npos) + addr = context.GetAddressBook().GetAddress (destination); + else { - context.GetAddressBook().InsertFullAddress(dest); - auto leaseSet = session->localDestination->FindLeaseSet(dest->GetIdentHash()); - if (leaseSet) - Connect(leaseSet); - else + auto dest = std::make_shared (); + size_t l = dest->FromBase64(destination); + if (l > 0) { - session->localDestination->RequestDestination(dest->GetIdentHash(), + context.GetAddressBook().InsertFullAddress(dest); + addr = std::make_shared
(dest->GetIdentHash ()); + } + } + + if (addr && addr->IsValid ()) + { + if (addr->IsIdentHash ()) + { + if (session->GetLocalDestination ()->GetIdentHash () != addr->identHash) + { + auto leaseSet = session->GetLocalDestination ()->FindLeaseSet(addr->identHash); + if (leaseSet) + Connect(leaseSet, session); + else + { + session->GetLocalDestination ()->RequestDestination(addr->identHash, + std::bind(&SAMSocket::HandleConnectLeaseSetRequestComplete, + shared_from_this(), std::placeholders::_1)); + } + } + else + SendStreamCantReachPeer ("Can't connect to myself"); + } + else // B33 + session->GetLocalDestination ()->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, std::bind(&SAMSocket::HandleConnectLeaseSetRequestComplete, shared_from_this(), std::placeholders::_1)); - } } else SendMessageReply (SAM_STREAM_STATUS_INVALID_KEY, strlen(SAM_STREAM_STATUS_INVALID_KEY), true); @@ -485,18 +549,30 @@ namespace client SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true); } - void SAMSocket::Connect (std::shared_ptr remote) + void SAMSocket::Connect (std::shared_ptr remote, std::shared_ptr session) { - auto session = m_Owner.FindSession(m_ID); - if(session) + if (!session) session = m_Owner.FindSession(m_ID); + if (session) { - m_SocketType = eSAMSocketTypeStream; - m_Stream = session->localDestination->CreateStream (remote); - m_Stream->Send ((uint8_t *)m_Buffer, m_BufferOffset); // connect and send - m_BufferOffset = 0; - I2PReceive (); - SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); + if (session->GetLocalDestination ()->SupportsEncryptionType (remote->GetEncryptionType ())) + { + m_SocketType = eSAMSocketTypeStream; + m_Stream = session->GetLocalDestination ()->CreateStream (remote); + if (m_Stream) + { + m_Stream->Send ((uint8_t *)m_Buffer, m_BufferOffset); // connect and send + m_BufferOffset = 0; + I2PReceive (); + SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); + } + else + SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true); + } + else + SendStreamCantReachPeer ("Incompatible crypto"); } + else + SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true); } void SAMSocket::HandleConnectLeaseSetRequestComplete (std::shared_ptr leaseSet) @@ -505,14 +581,19 @@ namespace client Connect (leaseSet); else { - LogPrint (eLogError, "SAM: destination to connect not found"); - SendMessageReply (SAM_STREAM_STATUS_CANT_REACH_PEER, strlen(SAM_STREAM_STATUS_CANT_REACH_PEER), true); + LogPrint (eLogError, "SAM: Destination to connect not found"); + SendStreamCantReachPeer ("LeaseSet not found"); } } void SAMSocket::ProcessStreamAccept (char * buf, size_t len) { - LogPrint (eLogDebug, "SAM: stream accept: ", buf); + LogPrint (eLogDebug, "SAM: Stream accept: ", buf); + if ( m_SocketType != eSAMSocketTypeUnknown) + { + SendSessionI2PError ("Socket already in use"); + return; + } std::map params; ExtractParams (buf, params); std::string& id = params[SAM_PARAM_ID]; @@ -523,20 +604,89 @@ namespace client if (session) { m_SocketType = eSAMSocketTypeAcceptor; - if (!session->localDestination->IsAcceptingStreams ()) + if (!session->GetLocalDestination ()->IsAcceptingStreams ()) { - m_IsAccepting = true; - session->localDestination->AcceptOnce (std::bind (&SAMSocket::HandleI2PAccept, shared_from_this (), std::placeholders::_1)); + m_IsAccepting = true; + SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); + session->GetLocalDestination ()->AcceptOnce (std::bind (&SAMSocket::HandleI2PAccept, shared_from_this (), std::placeholders::_1)); + } + else + { + auto ts = i2p::util::GetSecondsSinceEpoch (); + while (!session->acceptQueue.empty () && session->acceptQueue.front ().second + SAM_SESSION_MAX_ACCEPT_INTERVAL > ts) + { + auto socket = session->acceptQueue.front ().first; + session->acceptQueue.pop_front (); + if (socket) + boost::asio::post (m_Owner.GetService (), std::bind(&SAMSocket::TerminateClose, socket)); + } + if (session->acceptQueue.size () < SAM_SESSION_MAX_ACCEPT_QUEUE_SIZE) + { + // already accepting, queue up + SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); + session->acceptQueue.push_back (std::make_pair(shared_from_this(), ts)); + } + else + { + LogPrint (eLogInfo, "SAM: Session ", m_ID, " accept queue is full ", session->acceptQueue.size ()); + SendStreamI2PError ("Already accepting"); + } } - SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); } else SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true); } + void SAMSocket::ProcessStreamForward (char * buf, size_t len) + { + LogPrint (eLogDebug, "SAM: Stream forward: ", buf); + std::map params; + ExtractParams (buf, params); + std::string& id = params[SAM_PARAM_ID]; + auto session = m_Owner.FindSession (id); + if (!session) + { + SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true); + return; + } + if (session->GetLocalDestination ()->IsAcceptingStreams ()) + { + SendSessionI2PError ("Already accepting"); + return; + } + auto it = params.find (SAM_PARAM_PORT); + if (it == params.end ()) + { + SendSessionI2PError ("PORT is missing"); + return; + } + auto port = std::stoi (it->second); + if (port <= 0 || port >= 0xFFFF) + { + SendSessionI2PError ("Invalid PORT"); + return; + } + boost::system::error_code ec; + auto ep = m_Socket.remote_endpoint (ec); + if (ec) + { + SendSessionI2PError ("Socket error"); + return; + } + ep.port (port); + m_SocketType = eSAMSocketTypeForward; + m_ID = id; + m_IsAccepting = true; + std::string& silent = params[SAM_PARAM_SILENT]; + if (silent == SAM_VALUE_TRUE) m_IsSilent = true; + session->GetLocalDestination ()->AcceptStreams (std::bind (&SAMSocket::HandleI2PForward, + shared_from_this (), std::placeholders::_1, ep)); + SendMessageReply (SAM_STREAM_STATUS_OK, strlen(SAM_STREAM_STATUS_OK), false); + } + size_t SAMSocket::ProcessDatagramSend (char * buf, size_t len, const char * data) { - LogPrint (eLogDebug, "SAM: datagram send: ", buf, " ", len); + LogPrint (eLogDebug, "SAM: Datagram send: ", buf, " ", len); std::map params; ExtractParams (buf, params); size_t size = std::stoi(params[SAM_PARAM_SIZE]), offset = data - buf; @@ -545,22 +695,25 @@ namespace client auto session = m_Owner.FindSession(m_ID); if (session) { - auto d = session->localDestination->GetDatagramDestination (); + auto d = session->GetLocalDestination ()->GetDatagramDestination (); if (d) { i2p::data::IdentityEx dest; dest.FromBase64 (params[SAM_PARAM_DESTINATION]); - d->SendDatagramTo ((const uint8_t *)data, size, dest.GetIdentHash ()); + if (session->Type == eSAMSessionTypeDatagram) + d->SendDatagramTo ((const uint8_t *)data, size, dest.GetIdentHash ()); + else // raw + d->SendRawDatagramTo ((const uint8_t *)data, size, dest.GetIdentHash ()); } else - LogPrint (eLogError, "SAM: missing datagram destination"); + LogPrint (eLogError, "SAM: Missing datagram destination"); } else - LogPrint (eLogError, "SAM: session is not created from DATAGRAM SEND"); + LogPrint (eLogError, "SAM: Session is not created from DATAGRAM SEND"); } else { - LogPrint (eLogWarning, "SAM: sent datagram size ", size, " exceeds buffer ", len - offset); + LogPrint (eLogWarning, "SAM: Sent datagram size ", size, " exceeds buffer ", len - offset); return 0; // try to receive more } return offset + size; @@ -568,7 +721,7 @@ namespace client void SAMSocket::ProcessDestGenerate (char * buf, size_t len) { - LogPrint (eLogDebug, "SAM: dest generate"); + LogPrint (eLogDebug, "SAM: Dest generate"); std::map params; ExtractParams (buf, params); // extract signature type @@ -578,21 +731,21 @@ namespace client if (it != params.end ()) { if (!m_Owner.ResolveSignatureType (it->second, signatureType)) - LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second); + LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second); } it = params.find (SAM_PARAM_CRYPTO_TYPE); if (it != params.end ()) { try - { + { cryptoType = std::stoi(it->second); } - catch (const std::exception& ex) + catch (const std::exception& ex) { - LogPrint (eLogWarning, "SAM: ", SAM_PARAM_CRYPTO_TYPE, "error: ", ex.what ()); - } - } - auto keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType); + LogPrint (eLogWarning, "SAM: ", SAM_PARAM_CRYPTO_TYPE, "error: ", ex.what ()); + } + } + auto keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType, true); #ifdef _MSC_VER size_t l = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_DEST_REPLY, keys.GetPublic ()->ToBase64 ().c_str (), keys.ToBase64 ().c_str ()); @@ -605,38 +758,38 @@ namespace client void SAMSocket::ProcessNamingLookup (char * buf, size_t len) { - LogPrint (eLogDebug, "SAM: naming lookup: ", buf); + LogPrint (eLogDebug, "SAM: Naming lookup: ", buf); std::map params; ExtractParams (buf, params); std::string& name = params[SAM_PARAM_NAME]; std::shared_ptr identity; std::shared_ptr addr; auto session = m_Owner.FindSession(m_ID); - auto dest = session == nullptr ? context.GetSharedLocalDestination() : session->localDestination; + auto dest = session == nullptr ? context.GetSharedLocalDestination() : session->GetLocalDestination (); if (name == "ME") - SendNamingLookupReply (dest->GetIdentity ()); + SendNamingLookupReply (name, dest->GetIdentity ()); else if ((identity = context.GetAddressBook ().GetFullAddress (name)) != nullptr) - SendNamingLookupReply (identity); + SendNamingLookupReply (name, identity); else if ((addr = context.GetAddressBook ().GetAddress (name))) { if (addr->IsIdentHash ()) { auto leaseSet = dest->FindLeaseSet (addr->identHash); if (leaseSet) - SendNamingLookupReply (leaseSet->GetIdentity ()); + SendNamingLookupReply (name, leaseSet->GetIdentity ()); else dest->RequestDestination (addr->identHash, std::bind (&SAMSocket::HandleNamingLookupLeaseSetRequestComplete, - shared_from_this (), std::placeholders::_1, name)); + shared_from_this (), std::placeholders::_1, name)); } else dest->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, std::bind (&SAMSocket::HandleNamingLookupLeaseSetRequestComplete, - shared_from_this (), std::placeholders::_1, name)); + shared_from_this (), std::placeholders::_1, name)); } else { - LogPrint (eLogError, "SAM: naming failed, unknown address ", name); + LogPrint (eLogError, "SAM: Naming failed, unknown address ", name); #ifdef _MSC_VER size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY, name.c_str()); #else @@ -646,27 +799,110 @@ namespace client } } - void SAMSocket::SendI2PError(const std::string & msg) + void SAMSocket::ProcessSessionAdd (char * buf, size_t len) + { + auto session = m_Owner.FindSession(m_ID); + if (session && session->Type == eSAMSessionTypeMaster) + { + LogPrint (eLogDebug, "SAM: Subsession add: ", buf); + auto masterSession = std::static_pointer_cast(session); + std::map params; + ExtractParams (buf, params); + std::string& id = params[SAM_PARAM_ID]; + if (masterSession->subsessions.count (id) > 1) + { + // session exists + SendMessageReply (SAM_SESSION_CREATE_DUPLICATED_ID, strlen(SAM_SESSION_CREATE_DUPLICATED_ID), false); + return; + } + std::string& style = params[SAM_PARAM_STYLE]; + SAMSessionType type = eSAMSessionTypeUnknown; + if (style == SAM_VALUE_STREAM) type = eSAMSessionTypeStream; + // TODO: implement other styles + if (type == eSAMSessionTypeUnknown) + { + // unknown style + SendSessionI2PError("Unsupported STYLE"); + return; + } + auto fromPort = std::stoi(params[SAM_PARAM_FROM_PORT]); + if (fromPort == -1) + { + SendSessionI2PError("Invalid from port"); + return; + } + auto subsession = std::make_shared(masterSession, id, type, fromPort); + if (m_Owner.AddSession (subsession)) + { + masterSession->subsessions.insert (id); + SendSessionCreateReplyOk (); + } + else + SendMessageReply (SAM_SESSION_CREATE_DUPLICATED_ID, strlen(SAM_SESSION_CREATE_DUPLICATED_ID), false); + } + else + SendSessionI2PError ("Wrong session type"); + } + + void SAMSocket::ProcessSessionRemove (char * buf, size_t len) + { + auto session = m_Owner.FindSession(m_ID); + if (session && session->Type == eSAMSessionTypeMaster) + { + LogPrint (eLogDebug, "SAM: Subsession remove: ", buf); + auto masterSession = std::static_pointer_cast(session); + std::map params; + ExtractParams (buf, params); + std::string& id = params[SAM_PARAM_ID]; + if (!masterSession->subsessions.erase (id)) + { + SendMessageReply (SAM_SESSION_STATUS_INVALID_KEY, strlen(SAM_SESSION_STATUS_INVALID_KEY), false); + return; + } + m_Owner.CloseSession (id); + SendSessionCreateReplyOk (); + } + else + SendSessionI2PError ("Wrong session type"); + } + + void SAMSocket::SendReplyWithMessage (const char * reply, const std::string & msg) { - LogPrint (eLogError, "SAM: i2p error ", msg); #ifdef _MSC_VER - size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_STATUS_I2P_ERROR, msg.c_str()); + size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, reply, msg.c_str()); #else - size_t len = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_SESSION_STATUS_I2P_ERROR, msg.c_str()); + size_t len = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, reply, msg.c_str()); #endif SendMessageReply (m_Buffer, len, true); } + void SAMSocket::SendSessionI2PError(const std::string & msg) + { + LogPrint (eLogError, "SAM: Session I2P error: ", msg); + SendReplyWithMessage (SAM_SESSION_STATUS_I2P_ERROR, msg); + } + + void SAMSocket::SendStreamI2PError(const std::string & msg) + { + LogPrint (eLogError, "SAM: Stream I2P error: ", msg); + SendReplyWithMessage (SAM_STREAM_STATUS_I2P_ERROR, msg); + } + + void SAMSocket::SendStreamCantReachPeer(const std::string & msg) + { + SendReplyWithMessage (SAM_STREAM_STATUS_CANT_REACH_PEER, msg); + } + void SAMSocket::HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr leaseSet, std::string name) { if (leaseSet) { context.GetAddressBook ().InsertFullAddress (leaseSet->GetIdentity ()); - SendNamingLookupReply (leaseSet->GetIdentity ()); + SendNamingLookupReply (name, leaseSet->GetIdentity ()); } else { - LogPrint (eLogError, "SAM: naming lookup failed. LeaseSet for ", name, " not found"); + LogPrint (eLogError, "SAM: Naming lookup failed. LeaseSet for ", name, " not found"); #ifdef _MSC_VER size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY, name.c_str()); #else @@ -676,13 +912,13 @@ namespace client } } - void SAMSocket::SendNamingLookupReply (std::shared_ptr identity) + void SAMSocket::SendNamingLookupReply (const std::string& name, std::shared_ptr identity) { auto base64 = identity->ToBase64 (); #ifdef _MSC_VER - size_t l = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY, base64.c_str ()); + size_t l = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY, name.c_str (), base64.c_str ()); #else - size_t l = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY, base64.c_str ()); + size_t l = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY, name.c_str (), base64.c_str ()); #endif SendMessageReply (m_Buffer, l, false); } @@ -717,7 +953,7 @@ namespace client { if (ecode) { - LogPrint (eLogError, "SAM: read error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Read error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("read error"); } @@ -742,7 +978,7 @@ namespace client if (m_Stream) { if (m_Stream->GetStatus () == i2p::stream::eStreamStatusNew || - m_Stream->GetStatus () == i2p::stream::eStreamStatusOpen) // regular + m_Stream->GetStatus () == i2p::stream::eStreamStatusOpen) // regular { m_Stream->AsyncReceive (boost::asio::buffer (m_StreamBuffer, SAM_SOCKET_BUFFER_SIZE), std::bind (&SAMSocket::HandleI2PReceive, shared_from_this(), @@ -752,7 +988,7 @@ namespace client else // closed by peer { uint8_t * buff = new uint8_t[SAM_SOCKET_BUFFER_SIZE]; - // get remaning data + // get remaining data auto len = m_Stream->ReadSome (buff, SAM_SOCKET_BUFFER_SIZE); if (len > 0) // still some data { @@ -780,7 +1016,7 @@ namespace client { delete [] buff; } - + void SAMSocket::WriteI2PData(size_t sz) { boost::asio::async_write ( @@ -789,12 +1025,12 @@ namespace client boost::asio::transfer_all(), std::bind(&SAMSocket::HandleWriteI2PData, shared_from_this(), std::placeholders::_1, std::placeholders::_2)); } - + void SAMSocket::HandleI2PReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred) { if (ecode) { - LogPrint (eLogError, "SAM: stream read error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Stream read error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) { if (bytes_transferred > 0) @@ -804,13 +1040,13 @@ namespace client else { auto s = shared_from_this (); - m_Owner.GetService ().post ([s] { s->Terminate ("stream read error"); }); + boost::asio::post (m_Owner.GetService (), [s] { s->Terminate ("stream read error"); }); } } else { auto s = shared_from_this (); - m_Owner.GetService ().post ([s] { s->Terminate ("stream read error (op aborted)"); }); + boost::asio::post (m_Owner.GetService (), [s] { s->Terminate ("stream read error (op aborted)"); }); } } else @@ -831,7 +1067,7 @@ namespace client { if (ecode) { - LogPrint (eLogError, "SAM: socket write error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Socket write error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Terminate ("socket write error at HandleWriteI2PData"); } @@ -845,36 +1081,48 @@ namespace client { if (stream) { - LogPrint (eLogDebug, "SAM: incoming I2P connection for session ", m_ID); + LogPrint (eLogDebug, "SAM: Incoming I2P connection for session ", m_ID); m_SocketType = eSAMSocketTypeStream; m_IsAccepting = false; m_Stream = stream; context.GetAddressBook ().InsertFullAddress (stream->GetRemoteIdentity ()); auto session = m_Owner.FindSession (m_ID); - if (session) + if (session && !session->acceptQueue.empty ()) { - // find more pending acceptors - for (auto & it: m_Owner.ListSockets (m_ID)) - if (it->m_SocketType == eSAMSocketTypeAcceptor) + // pending acceptors + auto ts = i2p::util::GetSecondsSinceEpoch (); + while (!session->acceptQueue.empty () && session->acceptQueue.front ().second + SAM_SESSION_MAX_ACCEPT_INTERVAL > ts) + { + auto socket = session->acceptQueue.front ().first; + session->acceptQueue.pop_front (); + if (socket) + boost::asio::post (m_Owner.GetService (), std::bind(&SAMSocket::TerminateClose, socket)); + } + if (!session->acceptQueue.empty ()) + { + auto socket = session->acceptQueue.front ().first; + session->acceptQueue.pop_front (); + if (socket && socket->GetSocketType () == eSAMSocketTypeAcceptor) { - it->m_IsAccepting = true; - session->localDestination->AcceptOnce (std::bind (&SAMSocket::HandleI2PAccept, it, std::placeholders::_1)); - break; + socket->m_IsAccepting = true; + session->GetLocalDestination ()->AcceptOnce (std::bind (&SAMSocket::HandleI2PAccept, socket, std::placeholders::_1)); } + } } if (!m_IsSilent) - { - // get remote peer address - auto ident_ptr = stream->GetRemoteIdentity(); - const size_t ident_len = ident_ptr->GetFullLen(); - uint8_t* ident = new uint8_t[ident_len]; - - // send remote peer address as base64 - const size_t l = ident_ptr->ToBuffer (ident, ident_len); - const size_t l1 = i2p::data::ByteStreamToBase64 (ident, l, (char *)m_StreamBuffer, SAM_SOCKET_BUFFER_SIZE); - delete[] ident; - m_StreamBuffer[l1] = '\n'; - HandleI2PReceive (boost::system::error_code (), l1 +1); // we send identity like it has been received from stream + { + if (m_SocketType != eSAMSocketTypeTerminated) + { + // get remote peer address + auto ident = std::make_shared(stream->GetRemoteIdentity()->ToBase64 ()); // we need to keep it until sent + ident->push_back ('\n'); + // send remote peer address back to client like received from stream + boost::asio::async_write (m_Socket, boost::asio::buffer (ident->data (), ident->size ()), boost::asio::transfer_all(), + [ident, s = shared_from_this ()](const boost::system::error_code& ecode, size_t bytes_transferred) + { + s->HandleWriteI2PData (ecode, bytes_transferred); + }); + } } else I2PReceive (); @@ -883,9 +1131,46 @@ namespace client LogPrint (eLogWarning, "SAM: I2P acceptor has been reset"); } + void SAMSocket::HandleI2PForward (std::shared_ptr stream, + boost::asio::ip::tcp::endpoint ep) + { + if (stream) + { + LogPrint (eLogDebug, "SAM: Incoming forward I2P connection for session ", m_ID); + auto newSocket = std::make_shared(m_Owner); + newSocket->SetSocketType (eSAMSocketTypeStream); + auto s = shared_from_this (); + newSocket->GetSocket ().async_connect (ep, + [s, newSocket, stream](const boost::system::error_code& ecode) + { + if (!ecode) + { + s->m_Owner.AddSocket (newSocket); + newSocket->Receive (); + newSocket->m_Stream = stream; + newSocket->m_ID = s->m_ID; + if (!s->m_IsSilent) + { + // get remote peer address + auto dest = stream->GetRemoteIdentity()->ToBase64 (); + memcpy (newSocket->m_StreamBuffer, dest.c_str (), dest.length ()); + newSocket->m_StreamBuffer[dest.length ()] = '\n'; + newSocket->HandleI2PReceive (boost::system::error_code (),dest.length () + 1); // we send identity like it has been received from stream + } + else + newSocket->I2PReceive (); + } + else + stream->AsyncClose (); + }); + } + else + LogPrint (eLogWarning, "SAM: I2P forward acceptor has been reset"); + } + void SAMSocket::HandleI2PDatagramReceive (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) { - LogPrint (eLogDebug, "SAM: datagram received ", len); + LogPrint (eLogDebug, "SAM: Datagram received ", len); auto base64 = from.ToBase64 (); auto session = m_Owner.FindSession(m_ID); if(session) @@ -894,19 +1179,9 @@ namespace client if (ep) { // udp forward enabled - size_t bsz = base64.size(); - size_t sz = bsz + 1 + len; - // build datagram body - uint8_t * data = new uint8_t[sz]; - // Destination - memcpy(data, base64.c_str(), bsz); - // linefeed - data[bsz] = '\n'; - // Payload - memcpy(data+bsz+1, buf, len); - // send to remote endpoint - m_Owner.SendTo(data, sz, ep); - delete [] data; + const char lf = '\n'; + // send to remote endpoint, { destination, linefeed, payload } + m_Owner.SendTo({ {(const uint8_t *)base64.c_str(), base64.size()}, {(const uint8_t *)&lf, 1}, {buf, len} }, *ep); } else { @@ -921,28 +1196,48 @@ namespace client WriteI2PData(len + l); } else - LogPrint (eLogWarning, "SAM: received datagram size ", len," exceeds buffer"); + LogPrint (eLogWarning, "SAM: Received datagram size ", len," exceeds buffer"); + } + } + } + + void SAMSocket::HandleI2PRawDatagramReceive (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + LogPrint (eLogDebug, "SAM: Raw datagram received ", len); + auto session = m_Owner.FindSession(m_ID); + if(session) + { + auto ep = session->UDPEndpoint; + if (ep) + // udp forward enabled + m_Owner.SendTo({ {buf, len} }, *ep); + else + { +#ifdef _MSC_VER + size_t l = sprintf_s ((char *)m_StreamBuffer, SAM_SOCKET_BUFFER_SIZE, SAM_RAW_RECEIVED, (long unsigned int)len); +#else + size_t l = snprintf ((char *)m_StreamBuffer, SAM_SOCKET_BUFFER_SIZE, SAM_RAW_RECEIVED, (long unsigned int)len); +#endif + if (len < SAM_SOCKET_BUFFER_SIZE - l) + { + memcpy (m_StreamBuffer + l, buf, len); + WriteI2PData(len + l); + } + else + LogPrint (eLogWarning, "SAM: Received raw datagram size ", len," exceeds buffer"); } } } void SAMSocket::HandleStreamSend(const boost::system::error_code & ec) { - m_Owner.GetService ().post (std::bind( !ec ? &SAMSocket::Receive : &SAMSocket::TerminateClose, shared_from_this())); + boost::asio::post (m_Owner.GetService (), std::bind( !ec ? &SAMSocket::Receive : &SAMSocket::TerminateClose, shared_from_this())); } - - SAMSession::SAMSession (SAMBridge & parent, const std::string & id, std::shared_ptr dest): - m_Bridge(parent), - localDestination (dest), - UDPEndpoint(nullptr), - Name(id) + + SAMSession::SAMSession (SAMBridge & parent, const std::string & id, SAMSessionType type): + m_Bridge(parent), Name(id), Type (type), UDPEndpoint(nullptr) { } - - SAMSession::~SAMSession () - { - i2p::client::context.DeleteLocalDestination (localDestination); - } void SAMSession::CloseStreams () { @@ -952,26 +1247,83 @@ namespace client } } - SAMBridge::SAMBridge (const std::string& address, int port): - m_IsRunning (false), m_Thread (nullptr), - m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)), - m_DatagramEndpoint (boost::asio::ip::address::from_string(address), port-1), m_DatagramSocket (m_Service, m_DatagramEndpoint), + SAMSingleSession::SAMSingleSession (SAMBridge & parent, const std::string & name, SAMSessionType type, std::shared_ptr dest): + SAMSession (parent, name, type), + localDestination (dest) + { + } + + SAMSingleSession::~SAMSingleSession () + { + i2p::client::context.DeleteLocalDestination (localDestination); + } + + void SAMSingleSession::StopLocalDestination () + { + localDestination->Release (); + // stop accepting new streams + localDestination->StopAcceptingStreams (); + // terminate existing streams + auto s = localDestination->GetStreamingDestination (); // TODO: take care about datagrams + if (s) s->Stop (); + } + + void SAMMasterSession::Close () + { + SAMSingleSession::Close (); + for (const auto& it: subsessions) + m_Bridge.CloseSession (it); + subsessions.clear (); + } + + SAMSubSession::SAMSubSession (std::shared_ptr master, const std::string& name, SAMSessionType type, uint16_t port): + SAMSession (master->m_Bridge, name, type), masterSession (master), inPort (port) + { + if (Type == eSAMSessionTypeStream) + { + auto d = masterSession->GetLocalDestination ()->CreateStreamingDestination (inPort); + if (d) d->Start (); + } + // TODO: implement datagrams + } + + std::shared_ptr SAMSubSession::GetLocalDestination () + { + return masterSession ? masterSession->GetLocalDestination () : nullptr; + } + + void SAMSubSession::StopLocalDestination () + { + auto dest = GetLocalDestination (); + if (dest && Type == eSAMSessionTypeStream) + { + auto d = dest->RemoveStreamingDestination (inPort); + if (d) d->Stop (); + } + // TODO: implement datagrams + } + + SAMBridge::SAMBridge (const std::string& address, uint16_t portTCP, uint16_t portUDP, bool singleThread): + RunnableService ("SAM"), m_IsSingleThread (singleThread), + m_Acceptor (GetIOService (), boost::asio::ip::tcp::endpoint(boost::asio::ip::make_address(address), portTCP)), + m_DatagramEndpoint (boost::asio::ip::make_address(address), (!portUDP) ? portTCP-1 : portUDP), m_DatagramSocket (GetIOService (), m_DatagramEndpoint), m_SignatureTypes { {"DSA_SHA1", i2p::data::SIGNING_KEY_TYPE_DSA_SHA1}, {"ECDSA_SHA256_P256", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256}, - {"ECDSA_SHA256_P384", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384}, - {"ECDSA_SHA256_P521", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521}, + {"ECDSA_SHA384_P384", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384}, + {"ECDSA_SHA512_P521", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521}, {"EdDSA_SHA512_Ed25519", i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519}, {"GOST_GOSTR3411256_GOSTR3410CRYPTOPROA", i2p::data::SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256}, - {"GOST_GOSTR3411512_GOSTR3410TC26A512", i2p::data::SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512} + {"GOST_GOSTR3411512_GOSTR3410TC26A512", i2p::data::SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512}, + {"RedDSA_SHA512_Ed25519", i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519}, } { } SAMBridge::~SAMBridge () { - if (m_IsRunning) + if (IsRunning ()) Stop (); } @@ -979,48 +1331,29 @@ namespace client { Accept (); ReceiveDatagram (); - m_IsRunning = true; - m_Thread = new std::thread (std::bind (&SAMBridge::Run, this)); + StartIOService (); } void SAMBridge::Stop () { - m_IsRunning = false; - try { m_Acceptor.cancel (); } catch (const std::exception& ex) { - LogPrint (eLogError, "SAM: runtime exception: ", ex.what ()); + LogPrint (eLogError, "SAM: Runtime exception: ", ex.what ()); } - for (auto& it: m_Sessions) - it.second->CloseStreams (); - m_Sessions.clear (); - m_Service.stop (); - if (m_Thread) + decltype(m_Sessions) sessions; { - m_Thread->join (); - delete m_Thread; - m_Thread = nullptr; - } - } - - void SAMBridge::Run () - { - while (m_IsRunning) - { - try - { - m_Service.run (); - } - catch (std::exception& ex) - { - LogPrint (eLogError, "SAM: runtime exception: ", ex.what ()); - } - } + std::unique_lock l(m_SessionsMutex); + m_Sessions.swap (sessions); + } + for (auto& it: sessions) + it.second->Close (); + + StopIOService (); } void SAMBridge::Accept () @@ -1030,12 +1363,18 @@ namespace client std::placeholders::_1, newSocket)); } + void SAMBridge::AddSocket(std::shared_ptr socket) + { + std::unique_lock lock(m_OpenSocketsMutex); + m_OpenSockets.push_back(socket); + } + void SAMBridge::RemoveSocket(const std::shared_ptr & socket) { std::unique_lock lock(m_OpenSocketsMutex); m_OpenSockets.remove_if([socket](const std::shared_ptr & item) -> bool { return item == socket; }); } - + void SAMBridge::HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket) { if (!ecode) @@ -1044,32 +1383,31 @@ namespace client auto ep = socket->GetSocket ().remote_endpoint (ec); if (!ec) { - LogPrint (eLogDebug, "SAM: new connection from ", ep); - { - std::unique_lock l(m_OpenSocketsMutex); - m_OpenSockets.push_back(socket); - } + LogPrint (eLogDebug, "SAM: New connection from ", ep); + AddSocket (socket); socket->ReceiveHandshake (); } else - LogPrint (eLogError, "SAM: incoming connection error ", ec.message ()); + LogPrint (eLogError, "SAM: Incoming connection error: ", ec.message ()); } else - LogPrint (eLogError, "SAM: accept error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Accept error: ", ecode.message ()); if (ecode != boost::asio::error::operation_aborted) Accept (); } - std::shared_ptr SAMBridge::CreateSession (const std::string& id, const std::string& destination, - const std::map * params) + std::shared_ptr SAMBridge::CreateSession (const std::string& id, SAMSessionType type, + const std::string& destination, const std::map * params) { std::shared_ptr localDestination = nullptr; if (destination != "") { i2p::data::PrivateKeys keys; if (!keys.FromBase64 (destination)) return nullptr; - localDestination = i2p::client::context.CreateNewLocalDestination (keys, true, params); + localDestination = m_IsSingleThread ? + i2p::client::context.CreateNewLocalDestination (GetIOService (), keys, true, params) : + i2p::client::context.CreateNewLocalDestination (keys, true, params); } else // transient { @@ -1080,29 +1418,32 @@ namespace client { auto it = params->find (SAM_PARAM_SIGNATURE_TYPE); if (it != params->end ()) - { + { if (!ResolveSignatureType (it->second, signatureType)) - LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second); - } + LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second); + } it = params->find (SAM_PARAM_CRYPTO_TYPE); if (it != params->end ()) - { + { try - { + { cryptoType = std::stoi(it->second); } - catch (const std::exception& ex) + catch (const std::exception& ex) { - LogPrint (eLogWarning, "SAM: ", SAM_PARAM_CRYPTO_TYPE, "error: ", ex.what ()); - } - } + LogPrint (eLogWarning, "SAM: ", SAM_PARAM_CRYPTO_TYPE, "error: ", ex.what ()); + } + } } - localDestination = i2p::client::context.CreateNewLocalDestination (true, signatureType, cryptoType, params); + localDestination = m_IsSingleThread ? + i2p::client::context.CreateNewLocalDestination (GetIOService (), true, signatureType, cryptoType, params) : + i2p::client::context.CreateNewLocalDestination (true, signatureType, cryptoType, params); } if (localDestination) { localDestination->Acquire (); - auto session = std::make_shared(*this, id, localDestination); + auto session = (type == eSAMSessionTypeMaster) ? std::make_shared(*this, id, localDestination) : + std::make_shared(*this, id, type, localDestination); std::unique_lock l(m_SessionsMutex); auto ret = m_Sessions.insert (std::make_pair(id, session)); if (!ret.second) @@ -1112,6 +1453,13 @@ namespace client return nullptr; } + bool SAMBridge::AddSession (std::shared_ptr session) + { + if (!session) return false; + auto ret = m_Sessions.emplace (session->Name, session); + return ret.second; + } + void SAMBridge::CloseSession (const std::string& id) { std::shared_ptr session; @@ -1126,12 +1474,42 @@ namespace client } if (session) { - session->localDestination->Release (); - session->localDestination->StopAcceptingStreams (); - session->CloseStreams (); + session->StopLocalDestination (); + session->Close (); + if (m_IsSingleThread) + ScheduleSessionCleanupTimer (session); // let all session's streams close } } + void SAMBridge::ScheduleSessionCleanupTimer (std::shared_ptr session) + { + auto timer = std::make_shared(GetService ()); + timer->expires_from_now (boost::posix_time::seconds(5)); // postpone destination clean for 5 seconds + timer->async_wait (std::bind (&SAMBridge::HandleSessionCleanupTimer, this, std::placeholders::_1, session, timer)); + } + + void SAMBridge::HandleSessionCleanupTimer (const boost::system::error_code& ecode, + std::shared_ptr session, std::shared_ptr timer) + { + if (ecode != boost::asio::error::operation_aborted && session) + { + auto dest = session->GetLocalDestination (); + if (dest) + { + auto streamingDest = dest->GetStreamingDestination (); + auto numStreams = streamingDest->GetNumStreams (); + if (numStreams > 0) + { + LogPrint (eLogInfo, "SAM: Session ", session->Name, " still has ", numStreams, " streams"); + ScheduleSessionCleanupTimer (session); + } + else + LogPrint (eLogDebug, "SAM: Session ", session->Name, " terminated"); + } + } + // session's destructor is called here unless rescheduled + } + std::shared_ptr SAMBridge::FindSession (const std::string& id) const { std::unique_lock l(m_SessionsMutex); @@ -1152,13 +1530,10 @@ namespace client } return list; } - - void SAMBridge::SendTo(const uint8_t * buf, size_t len, std::shared_ptr remote) + + void SAMBridge::SendTo (const std::vector& bufs, const boost::asio::ip::udp::endpoint& ep) { - if(remote) - { - m_DatagramSocket.send_to(boost::asio::buffer(buf, len), *remote); - } + m_DatagramSocket.send_to (bufs, ep); } void SAMBridge::ReceiveDatagram () @@ -1179,7 +1554,7 @@ namespace client { *eol = 0; eol++; size_t payloadLen = bytes_transferred - ((uint8_t *)eol - m_DatagramReceiveBuffer); - LogPrint (eLogDebug, "SAM: datagram received ", m_DatagramReceiveBuffer," size=", payloadLen); + LogPrint (eLogDebug, "SAM: Datagram received ", m_DatagramReceiveBuffer," size=", payloadLen); char * sessionID = strchr ((char *)m_DatagramReceiveBuffer, ' '); if (sessionID) { @@ -1191,10 +1566,21 @@ namespace client auto session = FindSession (sessionID); if (session) { - i2p::data::IdentityEx dest; - dest.FromBase64 (destination); - session->localDestination->GetDatagramDestination ()-> - SendDatagramTo ((uint8_t *)eol, payloadLen, dest.GetIdentHash ()); + auto localDest = session->GetLocalDestination (); + auto datagramDest = localDest ? localDest->GetDatagramDestination () : nullptr; + if (datagramDest) + { + i2p::data::IdentityEx dest; + dest.FromBase64 (destination); + if (session->Type == eSAMSessionTypeDatagram) + datagramDest->SendDatagramTo ((uint8_t *)eol, payloadLen, dest.GetIdentHash ()); + else if (session->Type == eSAMSessionTypeRaw) + datagramDest->SendRawDatagramTo ((uint8_t *)eol, payloadLen, dest.GetIdentHash ()); + else + LogPrint (eLogError, "SAM: Unexpected session type ", (int)session->Type, "for session ", sessionID); + } + else + LogPrint (eLogError, "SAM: Datagram destination is not set for session ", sessionID); } else LogPrint (eLogError, "SAM: Session ", sessionID, " not found"); @@ -1206,17 +1592,17 @@ namespace client LogPrint (eLogError, "SAM: Missing sessionID"); } else - LogPrint(eLogError, "SAM: invalid datagram"); + LogPrint(eLogError, "SAM: Invalid datagram"); ReceiveDatagram (); } else - LogPrint (eLogError, "SAM: datagram receive error: ", ecode.message ()); + LogPrint (eLogError, "SAM: Datagram receive error: ", ecode.message ()); } bool SAMBridge::ResolveSignatureType (const std::string& name, i2p::data::SigningKeyType& type) const { try - { + { type = std::stoi (name); } catch (const std::invalid_argument& ex) @@ -1228,12 +1614,12 @@ namespace client else return false; } - catch (const std::exception& ex) + catch (const std::exception& ex) { - return false; - } - // name has been resolved - return true; + return false; + } + // name has been resolved + return true; } } } diff --git a/libi2pd_client/SAM.h b/libi2pd_client/SAM.h index 7cd3fd4c..1886324a 100644 --- a/libi2pd_client/SAM.h +++ b/libi2pd_client/SAM.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2025, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef SAM_H__ #define SAM_H__ @@ -5,10 +13,12 @@ #include #include #include +#include #include #include #include #include +#include "util.h" #include "Identity.h" #include "LeaseSet.h" #include "Streaming.h" @@ -20,7 +30,10 @@ namespace client { const size_t SAM_SOCKET_BUFFER_SIZE = 8192; const int SAM_SOCKET_CONNECTION_MAX_IDLE = 3600; // in seconds - const int SAM_SESSION_READINESS_CHECK_INTERVAL = 20; // in seconds + const int SAM_SESSION_READINESS_CHECK_INTERVAL = 3; // in seconds + const size_t SAM_SESSION_MAX_ACCEPT_QUEUE_SIZE = 50; + const size_t SAM_SESSION_MAX_ACCEPT_INTERVAL = 3; // in seconds + const char SAM_HANDSHAKE[] = "HELLO VERSION"; const char SAM_HANDSHAKE_REPLY[] = "HELLO REPLY RESULT=OK VERSION=%s\n"; const char SAM_HANDSHAKE_NOVERSION[] = "HELLO REPLY RESULT=NOVERSION\n"; @@ -31,21 +44,26 @@ namespace client const char SAM_SESSION_CREATE_DUPLICATED_DEST[] = "SESSION STATUS RESULT=DUPLICATED_DEST\n"; const char SAM_SESSION_CREATE_INVALID_ID[] = "SESSION STATUS RESULT=INVALID_ID\n"; const char SAM_SESSION_STATUS_INVALID_KEY[] = "SESSION STATUS RESULT=INVALID_KEY\n"; - const char SAM_SESSION_STATUS_I2P_ERROR[] = "SESSION STATUS RESULT=I2P_ERROR MESSAGE=%s\n"; + const char SAM_SESSION_STATUS_I2P_ERROR[] = "SESSION STATUS RESULT=I2P_ERROR MESSAGE=\"%s\"\n"; + const char SAM_SESSION_ADD[] = "SESSION ADD"; + const char SAM_SESSION_REMOVE[] = "SESSION REMOVE"; const char SAM_STREAM_CONNECT[] = "STREAM CONNECT"; const char SAM_STREAM_STATUS_OK[] = "STREAM STATUS RESULT=OK\n"; const char SAM_STREAM_STATUS_INVALID_ID[] = "STREAM STATUS RESULT=INVALID_ID\n"; const char SAM_STREAM_STATUS_INVALID_KEY[] = "STREAM STATUS RESULT=INVALID_KEY\n"; - const char SAM_STREAM_STATUS_CANT_REACH_PEER[] = "STREAM STATUS RESULT=CANT_REACH_PEER\n"; - const char SAM_STREAM_STATUS_I2P_ERROR[] = "STREAM STATUS RESULT=I2P_ERROR\n"; + const char SAM_STREAM_STATUS_CANT_REACH_PEER[] = "STREAM STATUS RESULT=CANT_REACH_PEER MESSAGE=\"%s\"\n"; + const char SAM_STREAM_STATUS_I2P_ERROR[] = "STREAM STATUS RESULT=I2P_ERROR MESSAGE=\"%s\"\n"; const char SAM_STREAM_ACCEPT[] = "STREAM ACCEPT"; + const char SAM_STREAM_FORWARD[] = "STREAM FORWARD"; const char SAM_DATAGRAM_SEND[] = "DATAGRAM SEND"; + const char SAM_RAW_SEND[] = "RAW SEND"; const char SAM_DEST_GENERATE[] = "DEST GENERATE"; const char SAM_DEST_REPLY[] = "DEST REPLY PUB=%s PRIV=%s\n"; const char SAM_DEST_REPLY_I2P_ERROR[] = "DEST REPLY RESULT=I2P_ERROR\n"; const char SAM_NAMING_LOOKUP[] = "NAMING LOOKUP"; - const char SAM_NAMING_REPLY[] = "NAMING REPLY RESULT=OK NAME=ME VALUE=%s\n"; + const char SAM_NAMING_REPLY[] = "NAMING REPLY RESULT=OK NAME=%s VALUE=%s\n"; const char SAM_DATAGRAM_RECEIVED[] = "DATAGRAM RECEIVED DESTINATION=%s SIZE=%lu\n"; + const char SAM_RAW_RECEIVED[] = "RAW RECEIVED SIZE=%lu\n"; const char SAM_NAMING_REPLY_INVALID_KEY[] = "NAMING REPLY RESULT=INVALID_KEY NAME=%s\n"; const char SAM_NAMING_REPLY_KEY_NOT_FOUND[] = "NAMING REPLY RESULT=KEY_NOT_FOUND NAME=%s\n"; const char SAM_PARAM_MIN[] = "MIN"; @@ -58,14 +76,16 @@ namespace client const char SAM_PARAM_SIGNATURE_TYPE[] = "SIGNATURE_TYPE"; const char SAM_PARAM_CRYPTO_TYPE[] = "CRYPTO_TYPE"; const char SAM_PARAM_SIZE[] = "SIZE"; + const char SAM_PARAM_HOST[] = "HOST"; + const char SAM_PARAM_PORT[] = "PORT"; + const char SAM_PARAM_FROM_PORT[] = "FROM_PORT"; const char SAM_VALUE_TRANSIENT[] = "TRANSIENT"; const char SAM_VALUE_STREAM[] = "STREAM"; const char SAM_VALUE_DATAGRAM[] = "DATAGRAM"; const char SAM_VALUE_RAW[] = "RAW"; + const char SAM_VALUE_MASTER[] = "MASTER"; const char SAM_VALUE_TRUE[] = "true"; const char SAM_VALUE_FALSE[] = "false"; - const char SAM_VALUE_HOST[] = "HOST"; - const char SAM_VALUE_PORT[] = "PORT"; enum SAMSocketType { @@ -73,6 +93,7 @@ namespace client eSAMSocketTypeSession, eSAMSocketTypeStream, eSAMSocketTypeAcceptor, + eSAMSocketTypeForward, eSAMSocketTypeTerminated }; @@ -84,7 +105,7 @@ namespace client typedef boost::asio::ip::tcp::socket Socket_t; SAMSocket (SAMBridge& owner); - ~SAMSocket (); + ~SAMSocket (); Socket_t& GetSocket () { return m_Socket; }; void ReceiveHandshake (); @@ -94,10 +115,11 @@ namespace client void Terminate (const char* reason); bool IsSession(const std::string & id) const; - - private: + + private: + void TerminateClose() { Terminate(nullptr); } - + void HandleHandshakeReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleHandshakeReplySent (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleMessage (const boost::system::error_code& ecode, std::size_t bytes_transferred); @@ -109,21 +131,29 @@ namespace client void I2PReceive (); void HandleI2PReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred); void HandleI2PAccept (std::shared_ptr stream); + void HandleI2PForward (std::shared_ptr stream, boost::asio::ip::tcp::endpoint ep); void HandleWriteI2PData (const boost::system::error_code& ecode, size_t sz); void HandleI2PDatagramReceive (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void HandleI2PRawDatagramReceive (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); void ProcessSessionCreate (char * buf, size_t len); void ProcessStreamConnect (char * buf, size_t len, size_t rem); void ProcessStreamAccept (char * buf, size_t len); + void ProcessStreamForward (char * buf, size_t len); void ProcessDestGenerate (char * buf, size_t len); void ProcessNamingLookup (char * buf, size_t len); - void SendI2PError(const std::string & msg); + void ProcessSessionAdd (char * buf, size_t len); + void ProcessSessionRemove (char * buf, size_t len); + void SendReplyWithMessage (const char * reply, const std::string & msg); + void SendSessionI2PError(const std::string & msg); + void SendStreamI2PError(const std::string & msg); + void SendStreamCantReachPeer(const std::string & msg); size_t ProcessDatagramSend (char * buf, size_t len, const char * data); // from SAM 1.0 void ExtractParams (char * buf, std::map& params); - void Connect (std::shared_ptr remote); + void Connect (std::shared_ptr remote, std::shared_ptr session = nullptr); void HandleConnectLeaseSetRequestComplete (std::shared_ptr leaseSet); - void SendNamingLookupReply (std::shared_ptr identity); + void SendNamingLookupReply (const std::string& name, std::shared_ptr identity); void HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr leaseSet, std::string name); void HandleSessionReadinessCheckTimer (const boost::system::error_code& ecode); void SendSessionCreateReplyOk (); @@ -133,7 +163,7 @@ namespace client void HandleWriteI2PDataImmediate(const boost::system::error_code & ec, uint8_t * buff); void HandleStreamSend(const boost::system::error_code & ec); - + private: SAMBridge& m_Owner; @@ -149,59 +179,105 @@ namespace client std::shared_ptr m_Stream; }; + enum SAMSessionType + { + eSAMSessionTypeUnknown, + eSAMSessionTypeStream, + eSAMSessionTypeDatagram, + eSAMSessionTypeRaw, + eSAMSessionTypeMaster + }; + struct SAMSession { SAMBridge & m_Bridge; - std::shared_ptr localDestination; - std::shared_ptr UDPEndpoint; std::string Name; + SAMSessionType Type; + std::shared_ptr UDPEndpoint; // TODO: move + std::list, uint64_t> > acceptQueue; // socket, receive time in seconds + + SAMSession (SAMBridge & parent, const std::string & name, SAMSessionType type); + virtual ~SAMSession () {}; - SAMSession (SAMBridge & parent, const std::string & name, std::shared_ptr dest); - ~SAMSession (); + virtual std::shared_ptr GetLocalDestination () = 0; + virtual void StopLocalDestination () = 0; + virtual void Close () { CloseStreams (); }; void CloseStreams (); }; - class SAMBridge + struct SAMSingleSession: public SAMSession + { + std::shared_ptr localDestination; + + SAMSingleSession (SAMBridge & parent, const std::string & name, SAMSessionType type, std::shared_ptr dest); + ~SAMSingleSession (); + + std::shared_ptr GetLocalDestination () { return localDestination; }; + void StopLocalDestination (); + }; + + struct SAMMasterSession: public SAMSingleSession + { + std::set subsessions; + SAMMasterSession (SAMBridge & parent, const std::string & name, std::shared_ptr dest): + SAMSingleSession (parent, name, eSAMSessionTypeMaster, dest) {}; + void Close (); + }; + + struct SAMSubSession: public SAMSession + { + std::shared_ptr masterSession; + uint16_t inPort; + + SAMSubSession (std::shared_ptr master, const std::string& name, SAMSessionType type, uint16_t port); + // implements SAMSession + std::shared_ptr GetLocalDestination (); + void StopLocalDestination (); + }; + + class SAMBridge: private i2p::util::RunnableService { public: - SAMBridge (const std::string& address, int port); + SAMBridge (const std::string& address, uint16_t portTCP, uint16_t portUDP, bool singleThread); ~SAMBridge (); void Start (); void Stop (); - boost::asio::io_service& GetService () { return m_Service; }; - std::shared_ptr CreateSession (const std::string& id, const std::string& destination, // empty string means transient + auto& GetService () { return GetIOService (); }; + std::shared_ptr CreateSession (const std::string& id, SAMSessionType type, const std::string& destination, // empty string means transient const std::map * params); + bool AddSession (std::shared_ptr session); void CloseSession (const std::string& id); std::shared_ptr FindSession (const std::string& id) const; std::list > ListSockets(const std::string & id) const; /** send raw data to remote endpoint from our UDP Socket */ - void SendTo(const uint8_t * buf, size_t len, std::shared_ptr remote); + void SendTo (const std::vector& bufs, const boost::asio::ip::udp::endpoint& ep); + void AddSocket(std::shared_ptr socket); void RemoveSocket(const std::shared_ptr & socket); - - bool ResolveSignatureType (const std::string& name, i2p::data::SigningKeyType& type) const; + + bool ResolveSignatureType (const std::string& name, i2p::data::SigningKeyType& type) const; private: - void Run (); - void Accept (); void HandleAccept(const boost::system::error_code& ecode, std::shared_ptr socket); void ReceiveDatagram (); void HandleReceivedDatagram (const boost::system::error_code& ecode, std::size_t bytes_transferred); + void ScheduleSessionCleanupTimer (std::shared_ptr session); + void HandleSessionCleanupTimer (const boost::system::error_code& ecode, + std::shared_ptr session, std::shared_ptr timer); + private: - bool m_IsRunning; - std::thread * m_Thread; - boost::asio::io_service m_Service; + bool m_IsSingleThread; boost::asio::ip::tcp::acceptor m_Acceptor; boost::asio::ip::udp::endpoint m_DatagramEndpoint, m_SenderEndpoint; boost::asio::ip::udp::socket m_DatagramSocket; diff --git a/libi2pd_client/SOCKS.cpp b/libi2pd_client/SOCKS.cpp index 8a67901c..27df33c8 100644 --- a/libi2pd_client/SOCKS.cpp +++ b/libi2pd_client/SOCKS.cpp @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #include #include #include @@ -11,6 +19,7 @@ #include "I2PTunnel.h" #include "I2PService.h" #include "util.h" +#include "Socks5.h" namespace i2p { @@ -19,10 +28,6 @@ namespace proxy static const size_t socks_buffer_size = 8192; static const size_t max_socks_hostname_size = 255; // Limit for socks5 and bad idea to traverse - static const size_t SOCKS_FORWARDER_BUFFER_SIZE = 8192; - - static const size_t SOCKS_UPSTREAM_SOCKS4A_REPLY_SIZE = 8; - struct SOCKSDnsAddress { uint8_t size; @@ -41,6 +46,7 @@ namespace proxy class SOCKSHandler: public i2p::client::I2PServiceHandler, public std::enable_shared_from_this { private: + enum state { GET_SOCKSV, @@ -57,6 +63,11 @@ namespace proxy GET5_IPV6, GET5_HOST_SIZE, GET5_HOST, + GET5_USERPASSWD, + GET5_USER_SIZE, + GET5_USER, + GET5_PASSWD_SIZE, + GET5_PASSWD, READY, UPSTREAM_RESOLVE, UPSTREAM_CONNECT, @@ -115,11 +126,10 @@ namespace proxy void HandleSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered); void Terminate(); void AsyncSockRead(); - boost::asio::const_buffers_1 GenerateSOCKS5SelectAuth(authMethods method); - boost::asio::const_buffers_1 GenerateSOCKS4Response(errTypes error, uint32_t ip, uint16_t port); - boost::asio::const_buffers_1 GenerateSOCKS5Response(errTypes error, addrTypes type, const address &addr, uint16_t port); - boost::asio::const_buffers_1 GenerateUpstreamRequest(); + boost::asio::const_buffer GenerateSOCKS4Response(errTypes error, uint32_t ip, uint16_t port); + boost::asio::const_buffer GenerateSOCKS5Response(errTypes error, addrTypes type, const address &addr, uint16_t port); bool Socks5ChooseAuth(); + void Socks5UserPasswdResponse (); void SocksRequestFailed(errTypes error); void SocksRequestSuccess(); void SentSocksFailed(const boost::system::error_code & ecode); @@ -128,27 +138,26 @@ namespace proxy void HandleStreamRequestComplete (std::shared_ptr stream); void ForwardSOCKS(); - void SocksUpstreamSuccess(); - void AsyncUpstreamSockRead(); - void SendUpstreamRequest(); - void HandleUpstreamData(uint8_t * buff, std::size_t len); - void HandleUpstreamSockSend(const boost::system::error_code & ecode, std::size_t bytes_transfered); - void HandleUpstreamSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered); - void HandleUpstreamConnected(const boost::system::error_code & ecode, - boost::asio::ip::tcp::resolver::iterator itr); - void HandleUpstreamResolved(const boost::system::error_code & ecode, - boost::asio::ip::tcp::resolver::iterator itr); + template + void SocksUpstreamSuccess(std::shared_ptr& upstreamSock); + void AsyncUpstreamSockRead(); + template + void SendUpstreamRequest(std::shared_ptr& upstreamSock); + void HandleUpstreamConnected(const boost::system::error_code & ecode, + const boost::asio::ip::tcp::endpoint& ep); + void HandleUpstreamResolved(const boost::system::error_code & ecode, + boost::asio::ip::tcp::resolver::results_type endpoints); - boost::asio::ip::tcp::resolver m_proxy_resolver; - uint8_t m_sock_buff[socks_buffer_size]; - std::shared_ptr m_sock, m_upstreamSock; + boost::asio::ip::tcp::resolver m_proxy_resolver; + uint8_t m_sock_buff[socks_buffer_size]; + std::shared_ptr m_sock, m_upstreamSock; +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + std::shared_ptr m_upstreamLocalSock; +#endif std::shared_ptr m_stream; uint8_t *m_remaining_data; //Data left to be sent uint8_t *m_remaining_upstream_data; //upstream data left to be forwarded uint8_t m_response[7+max_socks_hostname_size]; - uint8_t m_upstream_response[SOCKS_UPSTREAM_SOCKS4A_REPLY_SIZE]; - uint8_t m_upstream_request[14+max_socks_hostname_size]; - std::size_t m_upstream_response_len; address m_address; //Address std::size_t m_remaining_data_len; //Size of the data left to be sent uint32_t m_4aip; //Used in 4a requests @@ -161,11 +170,12 @@ namespace proxy cmdTypes m_cmd; // Command requested state m_state; const bool m_UseUpstreamProxy; // do we want to use the upstream proxy for non i2p addresses? - const std::string m_UpstreamProxyAddress; - const uint16_t m_UpstreamProxyPort; + const std::string m_UpstreamProxyAddress; + const uint16_t m_UpstreamProxyPort; public: - SOCKSHandler(SOCKSServer * parent, std::shared_ptr sock, const std::string & upstreamAddr, const uint16_t upstreamPort, const bool useUpstream) : + + SOCKSHandler(SOCKSServer * parent, std::shared_ptr sock, const std::string & upstreamAddr, const uint16_t upstreamPort, const bool useUpstream) : I2PServiceHandler(parent), m_proxy_resolver(parent->GetService()), m_sock(sock), m_stream(nullptr), @@ -181,13 +191,13 @@ namespace proxy void SOCKSHandler::AsyncSockRead() { - LogPrint(eLogDebug, "SOCKS: async sock read"); + LogPrint(eLogDebug, "SOCKS: Async sock read"); if (m_sock) { m_sock->async_receive(boost::asio::buffer(m_sock_buff, socks_buffer_size), - std::bind(&SOCKSHandler::HandleSockRecv, shared_from_this(), - std::placeholders::_1, std::placeholders::_2)); + std::bind(&SOCKSHandler::HandleSockRecv, shared_from_this(), + std::placeholders::_1, std::placeholders::_2)); } else { - LogPrint(eLogError,"SOCKS: no socket for read"); + LogPrint(eLogError,"SOCKS: No socket for read"); } } @@ -196,124 +206,120 @@ namespace proxy if (Kill()) return; if (m_sock) { - LogPrint(eLogDebug, "SOCKS: closing socket"); + LogPrint(eLogDebug, "SOCKS: Closing socket"); m_sock->close(); m_sock = nullptr; } if (m_upstreamSock) { - LogPrint(eLogDebug, "SOCKS: closing upstream socket"); + LogPrint(eLogDebug, "SOCKS: Closing upstream socket"); m_upstreamSock->close(); m_upstreamSock = nullptr; } +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + if (m_upstreamLocalSock) + { + LogPrint(eLogDebug, "SOCKS: Closing upstream local socket"); + m_upstreamLocalSock->close(); + m_upstreamLocalSock = nullptr; + } +#endif if (m_stream) { - LogPrint(eLogDebug, "SOCKS: closing stream"); + LogPrint(eLogDebug, "SOCKS: Closing stream"); m_stream.reset (); } Done(shared_from_this()); } - boost::asio::const_buffers_1 SOCKSHandler::GenerateSOCKS4Response(SOCKSHandler::errTypes error, uint32_t ip, uint16_t port) + boost::asio::const_buffer SOCKSHandler::GenerateSOCKS4Response(SOCKSHandler::errTypes error, uint32_t ip, uint16_t port) { assert(error >= SOCKS4_OK); - m_response[0] = '\x00'; //Version - m_response[1] = error; //Response code - htobe16buf(m_response+2,port); //Port - htobe32buf(m_response+4,ip); //IP - return boost::asio::const_buffers_1(m_response,8); + m_response[0] = '\x00'; // version + m_response[1] = error; // response code + htobe16buf(m_response + 2, port); // port + htobe32buf(m_response + 4, ip); // IP + return boost::asio::const_buffer (m_response,8); } - boost::asio::const_buffers_1 SOCKSHandler::GenerateSOCKS5Response(SOCKSHandler::errTypes error, SOCKSHandler::addrTypes type, const SOCKSHandler::address &addr, uint16_t port) + boost::asio::const_buffer SOCKSHandler::GenerateSOCKS5Response(SOCKSHandler::errTypes error, SOCKSHandler::addrTypes type, const SOCKSHandler::address &addr, uint16_t port) { - size_t size = 6; + size_t size = 6; // header + port assert(error <= SOCKS5_ADDR_UNSUP); - m_response[0] = '\x05'; //Version - m_response[1] = error; //Response code - m_response[2] = '\x00'; //RSV - m_response[3] = type; //Address type + m_response[0] = '\x05'; // version + m_response[1] = error; // response code + m_response[2] = '\x00'; // reserved + m_response[3] = type; // address type switch (type) { case ADDR_IPV4: - size = 10; - htobe32buf(m_response+4,addr.ip); + size += 4; + htobe32buf(m_response + 4, addr.ip); + htobe16buf(m_response + size - 2, port); break; case ADDR_IPV6: - size = 22; - memcpy(m_response+4,addr.ipv6, 16); + size += 16; + memcpy(m_response + 4, addr.ipv6, 16); + htobe16buf(m_response + size - 2, port); break; case ADDR_DNS: - size = 7+addr.dns.size; - m_response[4] = addr.dns.size; - memcpy(m_response+5,addr.dns.value, addr.dns.size); + std::string address(addr.dns.value, addr.dns.size); + if(address.substr(addr.dns.size - 4, 4) == ".i2p") // overwrite if requested address inside I2P + { + m_response[3] = ADDR_IPV4; + size += 4; + memset(m_response + 4, 0, 6); // six HEX zeros + } + else + { + size += (1 + addr.dns.size); /* name length + resolved address */ + m_response[4] = addr.dns.size; + memcpy(m_response + 5, addr.dns.value, addr.dns.size); + htobe16buf(m_response + size - 2, port); + } break; } - htobe16buf(m_response+size-2,port); //Port - return boost::asio::const_buffers_1(m_response,size); - } - - boost::asio::const_buffers_1 SOCKSHandler::GenerateUpstreamRequest() - { - size_t upstreamRequestSize = 0; - // TODO: negotiate with upstream - // SOCKS 4a - m_upstream_request[0] = '\x04'; //version - m_upstream_request[1] = m_cmd; - htobe16buf(m_upstream_request+2, m_port); - m_upstream_request[4] = 0; - m_upstream_request[5] = 0; - m_upstream_request[6] = 0; - m_upstream_request[7] = 1; - // user id - m_upstream_request[8] = 'i'; - m_upstream_request[9] = '2'; - m_upstream_request[10] = 'p'; - m_upstream_request[11] = 'd'; - m_upstream_request[12] = 0; - upstreamRequestSize += 13; - if (m_address.dns.size <= max_socks_hostname_size - ( upstreamRequestSize + 1) ) { - // bounds check okay - memcpy(m_upstream_request + upstreamRequestSize, m_address.dns.value, m_address.dns.size); - upstreamRequestSize += m_address.dns.size; - // null terminate - m_upstream_request[++upstreamRequestSize] = 0; - } else { - LogPrint(eLogError, "SOCKS: BUG!!! m_addr.dns.sizs > max_socks_hostname - ( upstreamRequestSize + 1 ) )"); - } - return boost::asio::const_buffers_1(m_upstream_request, upstreamRequestSize); + return boost::asio::const_buffer (m_response, size); } bool SOCKSHandler::Socks5ChooseAuth() { - m_response[0] = '\x05'; //Version - m_response[1] = m_authchosen; //Response code - boost::asio::const_buffers_1 response(m_response,2); + m_response[0] = '\x05'; // Version + m_response[1] = m_authchosen; // Response code + boost::asio::const_buffer response(m_response, 2); if (m_authchosen == AUTH_UNACCEPTABLE) { LogPrint(eLogWarning, "SOCKS: v5 authentication negotiation failed"); - boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksFailed, - shared_from_this(), std::placeholders::_1)); + boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksFailed, shared_from_this(), std::placeholders::_1)); return false; } else { LogPrint(eLogDebug, "SOCKS: v5 choosing authentication method: ", m_authchosen); - boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksResponse, - shared_from_this(), std::placeholders::_1)); + boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksResponse, shared_from_this(), std::placeholders::_1)); return true; } } + void SOCKSHandler::Socks5UserPasswdResponse () + { + m_response[0] = 1; // Version of the subnegotiation + m_response[1] = 0; // Response code + LogPrint(eLogDebug, "SOCKS: v5 user/password response"); + boost::asio::async_write(*m_sock, boost::asio::const_buffer(m_response, 2), + std::bind(&SOCKSHandler::SentSocksResponse, shared_from_this(), std::placeholders::_1)); + } + /* All hope is lost beyond this point */ void SOCKSHandler::SocksRequestFailed(SOCKSHandler::errTypes error) { - boost::asio::const_buffers_1 response(nullptr,0); + boost::asio::const_buffer response(nullptr,0); assert(error != SOCKS4_OK && error != SOCKS5_OK); switch (m_socksv) { case SOCKS4: LogPrint(eLogWarning, "SOCKS: v4 request failed: ", error); - if (error < SOCKS4_OK) error = SOCKS4_FAIL; //Transparently map SOCKS5 errors + if (error < SOCKS4_OK) error = SOCKS4_FAIL; // Transparently map SOCKS5 errors response = GenerateSOCKS4Response(error, m_4aip, m_port); break; case SOCKS5: @@ -322,13 +328,13 @@ namespace proxy break; } boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksFailed, - shared_from_this(), std::placeholders::_1)); + shared_from_this(), std::placeholders::_1)); } void SOCKSHandler::SocksRequestSuccess() { - boost::asio::const_buffers_1 response(nullptr,0); - //TODO: this should depend on things like the command type and callbacks may change + boost::asio::const_buffer response(nullptr,0); + // TODO: this should depend on things like the command type and callbacks may change switch (m_socksv) { case SOCKS4: @@ -339,12 +345,11 @@ namespace proxy LogPrint(eLogInfo, "SOCKS: v5 connection success"); auto s = i2p::client::context.GetAddressBook().ToAddress(GetOwner()->GetLocalDestination()->GetIdentHash()); address ad; ad.dns.FromString(s); - //HACK only 16 bits passed in port as SOCKS5 doesn't allow for more + // HACK only 16 bits passed in port as SOCKS5 doesn't allow for more response = GenerateSOCKS5Response(SOCKS5_OK, ADDR_DNS, ad, m_stream->GetRecvStreamID()); break; } - boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksDone, - shared_from_this(), std::placeholders::_1)); + boost::asio::async_write(*m_sock, response, std::bind(&SOCKSHandler::SentSocksDone, shared_from_this(), std::placeholders::_1)); } void SOCKSHandler::EnterState(SOCKSHandler::state nstate, uint8_t parseleft) { @@ -366,12 +371,12 @@ namespace proxy { if ( m_cmd != CMD_CONNECT ) { - //TODO: we need to support binds and other shit! - LogPrint(eLogError, "SOCKS: unsupported command: ", m_cmd); + // TODO: we need to support binds and other shit! + LogPrint(eLogError, "SOCKS: Unsupported command: ", m_cmd); SocksRequestFailed(SOCKS5_CMD_UNSUP); return false; } - //TODO: we may want to support other address types! + // TODO: we may want to support other address types! if ( m_addrtype != ADDR_DNS ) { switch (m_socksv) @@ -380,7 +385,7 @@ namespace proxy LogPrint(eLogError, "SOCKS: v5 unsupported address type: ", m_addrtype); break; case SOCKS4: - LogPrint(eLogError, "SOCKS: request with v4a rejected because it's actually SOCKS4"); + LogPrint(eLogError, "SOCKS: Request with v4a rejected because it's actually SOCKS4"); break; } SocksRequestFailed(SOCKS5_ADDR_UNSUP); @@ -407,7 +412,7 @@ namespace proxy EnterState(GET5_AUTHNUM); //Initialize the parser at the right position break; default: - LogPrint(eLogError, "SOCKS: rejected invalid version: ", ((int)*sock_buff)); + LogPrint(eLogError, "SOCKS: Rejected invalid version: ", ((int)*sock_buff)); Terminate(); return false; } @@ -419,10 +424,15 @@ namespace proxy m_parseleft --; if (*sock_buff == AUTH_NONE) m_authchosen = AUTH_NONE; + else if (*sock_buff == AUTH_USERPASSWD) + m_authchosen = AUTH_USERPASSWD; if ( m_parseleft == 0 ) { if (!Socks5ChooseAuth()) return false; - EnterState(GET5_REQUESTV); + if (m_authchosen == AUTH_USERPASSWD) + EnterState(GET5_USERPASSWD); + else + EnterState(GET5_REQUESTV); } break; case GET_COMMAND: @@ -433,8 +443,9 @@ namespace proxy break; case CMD_UDP: if (m_socksv == SOCKS5) break; + [[fallthrough]]; default: - LogPrint(eLogError, "SOCKS: invalid command: ", ((int)*sock_buff)); + LogPrint(eLogError, "SOCKS: Invalid command: ", ((int)*sock_buff)); SocksRequestFailed(SOCKS5_GEN_FAIL); return false; } @@ -535,8 +546,46 @@ namespace proxy m_parseleft--; if (m_parseleft == 0) EnterState(GET_PORT); break; + case GET5_USERPASSWD: + if (*sock_buff != 1) + { + LogPrint(eLogError,"SOCKS: v5 rejected invalid username/password subnegotiation: ", ((int)*sock_buff)); + SocksRequestFailed(SOCKS5_GEN_FAIL); + return false; + } + EnterState(GET5_USER_SIZE); + break; + case GET5_USER_SIZE: + if (*sock_buff) + EnterState(GET5_USER, *sock_buff); + else // empty user + EnterState(GET5_PASSWD_SIZE); + break; + case GET5_USER: + // skip user for now + m_parseleft--; + if (m_parseleft == 0) EnterState(GET5_PASSWD_SIZE); + break; + case GET5_PASSWD_SIZE: + if (*sock_buff) + EnterState(GET5_PASSWD, *sock_buff); + else // empty password + { + Socks5UserPasswdResponse (); + EnterState(GET5_REQUESTV); + } + break; + case GET5_PASSWD: + // skip passwd for now + m_parseleft--; + if (m_parseleft == 0) + { + Socks5UserPasswdResponse (); + EnterState(GET5_REQUESTV); + } + break; default: - LogPrint(eLogError, "SOCKS: parse state?? ", m_state); + LogPrint(eLogError, "SOCKS: Parse state?? ", m_state); Terminate(); return false; } @@ -554,10 +603,10 @@ namespace proxy void SOCKSHandler::HandleSockRecv(const boost::system::error_code & ecode, std::size_t len) { - LogPrint(eLogDebug, "SOCKS: received ", len, " bytes"); + LogPrint(eLogDebug, "SOCKS: Received ", len, " bytes"); if(ecode) { - LogPrint(eLogWarning, "SOCKS: recv got error: ", ecode); + LogPrint(eLogWarning, "SOCKS: Recv got error: ", ecode); Terminate(); return; } @@ -567,7 +616,7 @@ namespace proxy if (m_state == READY) { const std::string addr = m_address.dns.ToString(); - LogPrint(eLogInfo, "SOCKS: requested ", addr, ":" , m_port); + LogPrint(eLogInfo, "SOCKS: Requested ", addr, ":" , m_port); const size_t addrlen = addr.size(); // does it end with .i2p? if ( addr.rfind(".i2p") == addrlen - 4) { @@ -590,7 +639,7 @@ namespace proxy void SOCKSHandler::SentSocksFailed(const boost::system::error_code & ecode) { if (ecode) - LogPrint (eLogError, "SOCKS: closing socket after sending failure because: ", ecode.message ()); + LogPrint (eLogError, "SOCKS: Closing socket after sending failure because: ", ecode.message ()); Terminate(); } @@ -599,7 +648,7 @@ namespace proxy if (!ecode) { if (Kill()) return; - LogPrint (eLogInfo, "SOCKS: new I2PTunnel connection"); + LogPrint (eLogInfo, "SOCKS: New I2PTunnel connection"); auto connection = std::make_shared(GetOwner(), m_sock, m_stream); GetOwner()->AddHandler (connection); connection->I2PConnect (m_remaining_data,m_remaining_data_len); @@ -607,7 +656,7 @@ namespace proxy } else { - LogPrint (eLogError, "SOCKS: closing socket after completion reply because: ", ecode.message ()); + LogPrint (eLogError, "SOCKS: Closing socket after completion reply because: ", ecode.message ()); Terminate(); } } @@ -616,7 +665,7 @@ namespace proxy { if (ecode) { - LogPrint (eLogError, "SOCKS: closing socket after sending reply because: ", ecode.message ()); + LogPrint (eLogError, "SOCKS: Closing socket after sending reply because: ", ecode.message ()); Terminate(); } } @@ -630,51 +679,55 @@ namespace proxy } else { - LogPrint (eLogError, "SOCKS: error when creating the stream, check the previous warnings for more info"); + LogPrint (eLogError, "SOCKS: Error when creating the stream, check the previous warnings for more info"); SocksRequestFailed(SOCKS5_HOST_UNREACH); } } void SOCKSHandler::ForwardSOCKS() { - LogPrint(eLogInfo, "SOCKS: forwarding to upstream"); - EnterState(UPSTREAM_RESOLVE); - boost::asio::ip::tcp::resolver::query q(m_UpstreamProxyAddress, std::to_string(m_UpstreamProxyPort)); - m_proxy_resolver.async_resolve(q, std::bind(&SOCKSHandler::HandleUpstreamResolved, shared_from_this(), - std::placeholders::_1, std::placeholders::_2)); - } - - void SOCKSHandler::AsyncUpstreamSockRead() - { - LogPrint(eLogDebug, "SOCKS: async upstream sock read"); - if (m_upstreamSock) { - m_upstreamSock->async_read_some(boost::asio::buffer(m_upstream_response, SOCKS_UPSTREAM_SOCKS4A_REPLY_SIZE), - std::bind(&SOCKSHandler::HandleUpstreamSockRecv, shared_from_this(), - std::placeholders::_1, std::placeholders::_2)); - } else { - LogPrint(eLogError, "SOCKS: no upstream socket for read"); - SocksRequestFailed(SOCKS5_GEN_FAIL); + LogPrint(eLogInfo, "SOCKS: Forwarding to upstream"); + if (m_UpstreamProxyPort) // TCP + { + EnterState(UPSTREAM_RESOLVE); + m_proxy_resolver.async_resolve(m_UpstreamProxyAddress, std::to_string(m_UpstreamProxyPort), + std::bind(&SOCKSHandler::HandleUpstreamResolved, shared_from_this(), std::placeholders::_1, std::placeholders::_2)); + } + else if (!m_UpstreamProxyAddress.empty ())// local + { +#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) + EnterState(UPSTREAM_CONNECT); + m_upstreamLocalSock = std::make_shared(GetOwner()->GetService()); + auto s = shared_from_this (); + m_upstreamLocalSock->async_connect(m_UpstreamProxyAddress, + [s](const boost::system::error_code& ecode) + { + if (ecode) + { + LogPrint(eLogWarning, "SOCKS: Could not connect to local upstream proxy: ", ecode.message()); + s->SocksRequestFailed(SOCKS5_NET_UNREACH); + return; + } + LogPrint(eLogInfo, "SOCKS: Connected to local upstream proxy"); + s->SendUpstreamRequest(s->m_upstreamLocalSock); + }); +#else + LogPrint(eLogError, "SOCKS: Local sockets for upstream proxy not supported"); + SocksRequestFailed(SOCKS5_ADDR_UNSUP); +#endif } + else + { + LogPrint(eLogError, "SOCKS: Incorrect upstream proxy address"); + SocksRequestFailed(SOCKS5_ADDR_UNSUP); + } } - void SOCKSHandler::HandleUpstreamSockRecv(const boost::system::error_code & ecode, std::size_t bytes_transfered) + template + void SOCKSHandler::SocksUpstreamSuccess(std::shared_ptr& upstreamSock) { - if (ecode) { - if (m_state == UPSTREAM_HANDSHAKE ) { - // we are trying to handshake but it failed - SocksRequestFailed(SOCKS5_NET_UNREACH); - } else { - LogPrint(eLogError, "SOCKS: bad state when reading from upstream: ", (int) m_state); - } - return; - } - HandleUpstreamData(m_upstream_response, bytes_transfered); - } - - void SOCKSHandler::SocksUpstreamSuccess() - { - LogPrint(eLogInfo, "SOCKS: upstream success"); - boost::asio::const_buffers_1 response(nullptr, 0); + LogPrint(eLogInfo, "SOCKS: Upstream success"); + boost::asio::const_buffer response(nullptr, 0); switch (m_socksv) { case SOCKS4: @@ -688,90 +741,72 @@ namespace proxy break; } m_sock->send(response); - auto forwarder = std::make_shared(GetOwner(), m_sock, m_upstreamSock); - m_upstreamSock = nullptr; + auto forwarder = CreateSocketsPipe (GetOwner(), m_sock, upstreamSock); + upstreamSock = nullptr; m_sock = nullptr; GetOwner()->AddHandler(forwarder); forwarder->Start(); Terminate(); - } - void SOCKSHandler::HandleUpstreamData(uint8_t * dataptr, std::size_t len) + template + void SOCKSHandler::SendUpstreamRequest(std::shared_ptr& upstreamSock) { - if (m_state == UPSTREAM_HANDSHAKE) { - m_upstream_response_len += len; - // handle handshake data - if (m_upstream_response_len < SOCKS_UPSTREAM_SOCKS4A_REPLY_SIZE) { - // too small, continue reading - AsyncUpstreamSockRead(); - } else if (len == SOCKS_UPSTREAM_SOCKS4A_REPLY_SIZE) { - // just right - uint8_t resp = m_upstream_response[1]; - if (resp == SOCKS4_OK) { - // we have connected ! - SocksUpstreamSuccess(); - } else { - // upstream failure - LogPrint(eLogError, "SOCKS: upstream proxy failure: ", (int) resp); - // TODO: runtime error? - SocksRequestFailed(SOCKS5_GEN_FAIL); - } - } else { - // too big - SocksRequestFailed(SOCKS5_GEN_FAIL); - } - } else { - // invalid state - LogPrint(eLogError, "SOCKS: invalid state reading from upstream: ", (int) m_state); - } - } - - void SOCKSHandler::SendUpstreamRequest() - { - LogPrint(eLogInfo, "SOCKS: negotiating with upstream proxy"); + LogPrint(eLogInfo, "SOCKS: Negotiating with upstream proxy"); EnterState(UPSTREAM_HANDSHAKE); - if (m_upstreamSock) { - boost::asio::write(*m_upstreamSock, - GenerateUpstreamRequest()); - AsyncUpstreamSockRead(); - } else { - LogPrint(eLogError, "SOCKS: no upstream socket to send handshake to"); - } + if (upstreamSock) + { + auto s = shared_from_this (); + i2p::transport::Socks5Handshake (*upstreamSock, std::make_pair(m_address.dns.ToString (), m_port), + [s, &upstreamSock](const boost::system::error_code& ec) + { + if (!ec) + s->SocksUpstreamSuccess(upstreamSock); + else + { + s->SocksRequestFailed(SOCKS5_NET_UNREACH); + LogPrint(eLogError, "SOCKS: Upstream proxy failure: ", ec.message ()); + } + }); + } + else + LogPrint(eLogError, "SOCKS: No upstream socket to send handshake to"); } - void SOCKSHandler::HandleUpstreamConnected(const boost::system::error_code & ecode, boost::asio::ip::tcp::resolver::iterator itr) + void SOCKSHandler::HandleUpstreamConnected(const boost::system::error_code & ecode, + const boost::asio::ip::tcp::endpoint& ep) { if (ecode) { - LogPrint(eLogWarning, "SOCKS: could not connect to upstream proxy: ", ecode.message()); + LogPrint(eLogWarning, "SOCKS: Could not connect to upstream proxy: ", ecode.message()); SocksRequestFailed(SOCKS5_NET_UNREACH); return; } - LogPrint(eLogInfo, "SOCKS: connected to upstream proxy"); - SendUpstreamRequest(); + LogPrint(eLogInfo, "SOCKS: Connected to upstream proxy"); + SendUpstreamRequest(m_upstreamSock); } - void SOCKSHandler::HandleUpstreamResolved(const boost::system::error_code & ecode, boost::asio::ip::tcp::resolver::iterator itr) + void SOCKSHandler::HandleUpstreamResolved(const boost::system::error_code & ecode, + boost::asio::ip::tcp::resolver::results_type endpoints) { if (ecode) { // error resolving - LogPrint(eLogWarning, "SOCKS: upstream proxy", m_UpstreamProxyAddress, " not resolved: ", ecode.message()); + LogPrint(eLogWarning, "SOCKS: Upstream proxy", m_UpstreamProxyAddress, " not resolved: ", ecode.message()); SocksRequestFailed(SOCKS5_NET_UNREACH); return; } - LogPrint(eLogInfo, "SOCKS: upstream proxy resolved"); + LogPrint(eLogInfo, "SOCKS: Upstream proxy resolved"); EnterState(UPSTREAM_CONNECT); auto & service = GetOwner()->GetService(); m_upstreamSock = std::make_shared(service); - boost::asio::async_connect(*m_upstreamSock, itr, + boost::asio::async_connect(*m_upstreamSock, endpoints, std::bind(&SOCKSHandler::HandleUpstreamConnected, shared_from_this(), std::placeholders::_1, std::placeholders::_2)); } - SOCKSServer::SOCKSServer(const std::string& name, const std::string& address, int port, + SOCKSServer::SOCKSServer(const std::string& name, const std::string& address, uint16_t port, bool outEnable, const std::string& outAddress, uint16_t outPort, std::shared_ptr localDestination) : - TCPIPAcceptor (address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()), m_Name (name) + TCPIPAcceptor (address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()), m_Name (name) { m_UseUpstreamProxy = false; if (outAddress.length() > 0 && outEnable) diff --git a/libi2pd_client/SOCKS.h b/libi2pd_client/SOCKS.h index 87f08de4..bd88d6e6 100644 --- a/libi2pd_client/SOCKS.h +++ b/libi2pd_client/SOCKS.h @@ -1,3 +1,11 @@ +/* +* Copyright (c) 2013-2023, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + #ifndef SOCKS_H__ #define SOCKS_H__ @@ -14,13 +22,15 @@ namespace proxy class SOCKSServer: public i2p::client::TCPIPAcceptor { public: - SOCKSServer(const std::string& name, const std::string& address, int port, bool outEnable, const std::string& outAddress, uint16_t outPort, + + SOCKSServer(const std::string& name, const std::string& address, uint16_t port, bool outEnable, const std::string& outAddress, uint16_t outPort, std::shared_ptr localDestination = nullptr); ~SOCKSServer() {}; void SetUpstreamProxy(const std::string & addr, const uint16_t port); protected: + // Implements TCPIPAcceptor std::shared_ptr CreateHandler(std::shared_ptr socket); const char* GetName() { return m_Name.c_str (); } diff --git a/libi2pd_client/UDPTunnel.cpp b/libi2pd_client/UDPTunnel.cpp new file mode 100644 index 00000000..b173fc0f --- /dev/null +++ b/libi2pd_client/UDPTunnel.cpp @@ -0,0 +1,413 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include "Log.h" +#include "util.h" +#include "ClientContext.h" +#include "I2PTunnel.h" // for GetLoopbackAddressFor +#include "UDPTunnel.h" + +namespace i2p +{ +namespace client +{ + void I2PUDPServerTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + if (!m_LastSession || m_LastSession->Identity.GetLL()[0] != from.GetIdentHash ().GetLL()[0] || fromPort != m_LastSession->RemotePort) + m_LastSession = ObtainUDPSession(from, toPort, fromPort); + m_LastSession->IPSocket.send_to(boost::asio::buffer(buf, len), m_RemoteEndpoint); + m_LastSession->LastActivity = i2p::util::GetMillisecondsSinceEpoch(); + } + + void I2PUDPServerTunnel::HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + if (m_LastSession && (fromPort != m_LastSession->RemotePort || toPort != m_LastSession->LocalPort)) + { + std::lock_guard lock(m_SessionsMutex); + auto it = m_Sessions.find (GetSessionIndex (fromPort, toPort)); + if (it != m_Sessions.end ()) + m_LastSession = it->second; + else + m_LastSession = nullptr; + } + if (m_LastSession) + { + m_LastSession->IPSocket.send_to(boost::asio::buffer(buf, len), m_RemoteEndpoint); + m_LastSession->LastActivity = i2p::util::GetMillisecondsSinceEpoch(); + } + } + + void I2PUDPServerTunnel::ExpireStale(const uint64_t delta) + { + std::lock_guard lock(m_SessionsMutex); + uint64_t now = i2p::util::GetMillisecondsSinceEpoch(); + auto itr = m_Sessions.begin(); + while(itr != m_Sessions.end()) + { + if(now - itr->second->LastActivity >= delta ) + itr = m_Sessions.erase(itr); + else + itr++; + } + } + + void I2PUDPClientTunnel::ExpireStale(const uint64_t delta) + { + std::lock_guard lock(m_SessionsMutex); + uint64_t now = i2p::util::GetMillisecondsSinceEpoch(); + std::vector removePorts; + for (const auto & s : m_Sessions) { + if (now - s.second->second >= delta) + removePorts.push_back(s.first); + } + for(auto port : removePorts) { + m_Sessions.erase(port); + } + } + + UDPSessionPtr I2PUDPServerTunnel::ObtainUDPSession(const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort) + { + auto ih = from.GetIdentHash(); + auto idx = GetSessionIndex (remotePort, localPort); + { + std::lock_guard lock(m_SessionsMutex); + auto it = m_Sessions.find (idx); + if (it != m_Sessions.end ()) + { + if (it->second->Identity.GetLL()[0] == ih.GetLL()[0]) + { + LogPrint(eLogDebug, "UDPServer: Found session ", it->second->IPSocket.local_endpoint(), " ", ih.ToBase32()); + return it->second; + } + else + { + LogPrint(eLogWarning, "UDPServer: Session with from ", remotePort, " and to ", localPort, " ports already exists. But from different address. Removed"); + m_Sessions.erase (it); + } + } + } + + boost::asio::ip::address addr; + /** create new udp session */ + if(m_IsUniqueLocal && m_LocalAddress.is_loopback()) + { + auto ident = from.GetIdentHash(); + addr = GetLoopbackAddressFor(ident); + } + else + addr = m_LocalAddress; + + auto s = std::make_shared(boost::asio::ip::udp::endpoint(addr, 0), + m_LocalDest, m_RemoteEndpoint, ih, localPort, remotePort); + std::lock_guard lock(m_SessionsMutex); + m_Sessions.emplace (idx, s); + return s; + } + + UDPSession::UDPSession(boost::asio::ip::udp::endpoint localEndpoint, + const std::shared_ptr & localDestination, + const boost::asio::ip::udp::endpoint& endpoint, const i2p::data::IdentHash& to, + uint16_t ourPort, uint16_t theirPort) : + m_Destination(localDestination->GetDatagramDestination()), + IPSocket(localDestination->GetService(), localEndpoint), + Identity (to), SendEndpoint(endpoint), + LastActivity(i2p::util::GetMillisecondsSinceEpoch()), + LocalPort(ourPort), + RemotePort(theirPort) + { + IPSocket.set_option (boost::asio::socket_base::receive_buffer_size (I2P_UDP_MAX_MTU )); + Receive(); + } + + void UDPSession::Receive() + { + LogPrint(eLogDebug, "UDPSession: Receive"); + IPSocket.async_receive_from(boost::asio::buffer(m_Buffer, I2P_UDP_MAX_MTU), + FromEndpoint, std::bind(&UDPSession::HandleReceived, this, std::placeholders::_1, std::placeholders::_2)); + } + + void UDPSession::HandleReceived(const boost::system::error_code & ecode, std::size_t len) + { + if(!ecode) + { + LogPrint(eLogDebug, "UDPSession: Forward ", len, "B from ", FromEndpoint); + auto ts = i2p::util::GetMillisecondsSinceEpoch(); + auto session = m_Destination->GetSession (Identity); + if (ts > LastActivity + I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL) + m_Destination->SendDatagram(session, m_Buffer, len, LocalPort, RemotePort); + else + m_Destination->SendRawDatagram(session, m_Buffer, len, LocalPort, RemotePort); + size_t numPackets = 0; + while (numPackets < i2p::datagram::DATAGRAM_SEND_QUEUE_MAX_SIZE) + { + boost::system::error_code ec; + size_t moreBytes = IPSocket.available(ec); + if (ec || !moreBytes) break; + len = IPSocket.receive_from (boost::asio::buffer (m_Buffer, I2P_UDP_MAX_MTU), FromEndpoint, 0, ec); + m_Destination->SendRawDatagram (session, m_Buffer, len, LocalPort, RemotePort); + numPackets++; + } + if (numPackets > 0) + LogPrint(eLogDebug, "UDPSession: Forward more ", numPackets, "packets B from ", FromEndpoint); + m_Destination->FlushSendQueue (session); + LastActivity = ts; + Receive(); + } + else + LogPrint(eLogError, "UDPSession: ", ecode.message()); + } + + I2PUDPServerTunnel::I2PUDPServerTunnel (const std::string & name, std::shared_ptr localDestination, + const boost::asio::ip::address& localAddress, const boost::asio::ip::udp::endpoint& forwardTo, uint16_t inPort, bool gzip) : + m_IsUniqueLocal (true), m_Name (name), m_LocalAddress (localAddress), + m_RemoteEndpoint (forwardTo), m_LocalDest (localDestination), m_inPort(inPort), m_Gzip (gzip) + { + } + + I2PUDPServerTunnel::~I2PUDPServerTunnel () + { + Stop (); + } + + void I2PUDPServerTunnel::Start () + { + m_LocalDest->Start (); + + auto dgram = m_LocalDest->CreateDatagramDestination (m_Gzip); + dgram->SetReceiver ( + std::bind (&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5), + m_inPort + ); + dgram->SetRawReceiver ( + std::bind (&I2PUDPServerTunnel::HandleRecvFromI2PRaw, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4), + m_inPort + ); + } + + void I2PUDPServerTunnel::Stop () + { + auto dgram = m_LocalDest->GetDatagramDestination (); + if (dgram) { + dgram->ResetReceiver (m_inPort); + dgram->ResetRawReceiver (m_inPort); + } + } + + std::vector > I2PUDPServerTunnel::GetSessions () + { + std::vector > sessions; + std::lock_guard lock (m_SessionsMutex); + + for (const auto &it: m_Sessions) + { + auto s = it.second; + if (!s->m_Destination) continue; + auto info = s->m_Destination->GetInfoForRemote (s->Identity); + if (!info) continue; + + auto sinfo = std::make_shared (); + sinfo->Name = m_Name; + sinfo->LocalIdent = std::make_shared (m_LocalDest->GetIdentHash ().data ()); + sinfo->RemoteIdent = std::make_shared (s->Identity.data ()); + sinfo->CurrentIBGW = info->IBGW; + sinfo->CurrentOBEP = info->OBEP; + sessions.push_back (sinfo); + } + return sessions; + } + + I2PUDPClientTunnel::I2PUDPClientTunnel (const std::string & name, const std::string &remoteDest, + const boost::asio::ip::udp::endpoint& localEndpoint, + std::shared_ptr localDestination, + uint16_t remotePort, bool gzip) : + m_Name (name), m_RemoteDest (remoteDest), m_LocalDest (localDestination), m_LocalEndpoint (localEndpoint), + m_ResolveThread (nullptr), m_LocalSocket (nullptr), RemotePort (remotePort), + m_LastPort (0), m_cancel_resolve (false), m_Gzip (gzip) + { + } + + I2PUDPClientTunnel::~I2PUDPClientTunnel () + { + Stop (); + } + + void I2PUDPClientTunnel::Start () + { + // Reset flag in case of tunnel reload + if (m_cancel_resolve) m_cancel_resolve = false; + + m_LocalSocket.reset (new boost::asio::ip::udp::socket (m_LocalDest->GetService (), m_LocalEndpoint)); + m_LocalSocket->set_option (boost::asio::socket_base::receive_buffer_size (I2P_UDP_MAX_MTU)); + m_LocalSocket->set_option (boost::asio::socket_base::reuse_address (true)); + + auto dgram = m_LocalDest->CreateDatagramDestination (m_Gzip); + dgram->SetReceiver (std::bind (&I2PUDPClientTunnel::HandleRecvFromI2P, this, + std::placeholders::_1, std::placeholders::_2, + std::placeholders::_3, std::placeholders::_4, + std::placeholders::_5), + RemotePort + ); + dgram->SetRawReceiver (std::bind (&I2PUDPClientTunnel::HandleRecvFromI2PRaw, this, + std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4), + RemotePort + ); + + m_LocalDest->Start (); + if (m_ResolveThread == nullptr) + m_ResolveThread = new std::thread (std::bind (&I2PUDPClientTunnel::TryResolving, this)); + RecvFromLocal (); + } + + void I2PUDPClientTunnel::Stop () + { + auto dgram = m_LocalDest->GetDatagramDestination (); + if (dgram) { + dgram->ResetReceiver (RemotePort); + dgram->ResetRawReceiver (RemotePort); + } + m_cancel_resolve = true; + + m_Sessions.clear(); + + if(m_LocalSocket && m_LocalSocket->is_open ()) + m_LocalSocket->close (); + + if(m_ResolveThread) + { + m_ResolveThread->join (); + delete m_ResolveThread; + m_ResolveThread = nullptr; + } + m_RemoteAddr = nullptr; + } + + void I2PUDPClientTunnel::RecvFromLocal () + { + m_LocalSocket->async_receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), + m_RecvEndpoint, std::bind (&I2PUDPClientTunnel::HandleRecvFromLocal, this, std::placeholders::_1, std::placeholders::_2)); + } + + void I2PUDPClientTunnel::HandleRecvFromLocal (const boost::system::error_code & ec, std::size_t transferred) + { + if (m_cancel_resolve) { + LogPrint (eLogDebug, "UDP Client: Ignoring incoming data: stopping"); + return; + } + if (ec) { + LogPrint (eLogError, "UDP Client: Reading from socket error: ", ec.message (), ". Restarting listener..."); + RecvFromLocal (); // Restart listener and continue work + return; + } + if (!m_RemoteAddr || !m_RemoteAddr->IsIdentHash ()) // TODO: handle B33 + { + LogPrint (eLogWarning, "UDP Client: Remote endpoint not resolved yet"); + RecvFromLocal (); + return; // drop, remote not resolved + } + auto remotePort = m_RecvEndpoint.port (); + if (!m_LastPort || m_LastPort != remotePort) + { + auto itr = m_Sessions.find (remotePort); + if (itr != m_Sessions.end ()) + m_LastSession = itr->second; + else + { + m_LastSession = std::make_shared (boost::asio::ip::udp::endpoint (m_RecvEndpoint), 0); + m_Sessions.emplace (remotePort, m_LastSession); + } + m_LastPort = remotePort; + } + // send off to remote i2p destination + auto ts = i2p::util::GetMillisecondsSinceEpoch (); + LogPrint (eLogDebug, "UDP Client: Send ", transferred, " to ", m_RemoteAddr->identHash.ToBase32 (), ":", RemotePort); + auto session = m_LocalDest->GetDatagramDestination ()->GetSession (m_RemoteAddr->identHash); + if (ts > m_LastSession->second + I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL) + m_LocalDest->GetDatagramDestination ()->SendDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort); + else + m_LocalDest->GetDatagramDestination ()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort); + size_t numPackets = 0; + while (numPackets < i2p::datagram::DATAGRAM_SEND_QUEUE_MAX_SIZE) + { + boost::system::error_code ec; + size_t moreBytes = m_LocalSocket->available (ec); + if (ec || !moreBytes) break; + transferred = m_LocalSocket->receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), m_RecvEndpoint, 0, ec); + remotePort = m_RecvEndpoint.port (); + // TODO: check remotePort + m_LocalDest->GetDatagramDestination ()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort); + numPackets++; + } + if (numPackets) + LogPrint (eLogDebug, "UDP Client: Sent ", numPackets, " more packets to ", m_RemoteAddr->identHash.ToBase32 ()); + m_LocalDest->GetDatagramDestination ()->FlushSendQueue (session); + + // mark convo as active + if (m_LastSession) + m_LastSession->second = ts; + RecvFromLocal (); + } + + std::vector > I2PUDPClientTunnel::GetSessions () + { + // TODO: implement + std::vector > infos; + return infos; + } + + void I2PUDPClientTunnel::TryResolving () + { + i2p::util::SetThreadName ("UDP Resolver"); + LogPrint (eLogInfo, "UDP Tunnel: Trying to resolve ", m_RemoteDest); + + while (!(m_RemoteAddr = context.GetAddressBook().GetAddress(m_RemoteDest)) && !m_cancel_resolve) + { + LogPrint (eLogWarning, "UDP Tunnel: Failed to lookup ", m_RemoteDest); + std::this_thread::sleep_for (std::chrono::seconds (1)); + } + if (m_cancel_resolve) + { + LogPrint(eLogError, "UDP Tunnel: Lookup of ", m_RemoteDest, " was cancelled"); + return; + } + if (!m_RemoteAddr) + { + LogPrint (eLogError, "UDP Tunnel: ", m_RemoteDest, " not found"); + return; + } + LogPrint(eLogInfo, "UDP Tunnel: Resolved ", m_RemoteDest, " to ", m_RemoteAddr->identHash.ToBase32 ()); + } + + void I2PUDPClientTunnel::HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + if (m_RemoteAddr && from.GetIdentHash() == m_RemoteAddr->identHash) + HandleRecvFromI2PRaw (fromPort, toPort, buf, len); + else + LogPrint(eLogWarning, "UDP Client: Unwarranted traffic from ", from.GetIdentHash().ToBase32 ()); + } + + void I2PUDPClientTunnel::HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) + { + auto itr = m_Sessions.find (toPort); + // found convo ? + if (itr != m_Sessions.end ()) + { + // found convo + if (len > 0) + { + LogPrint (eLogDebug, "UDP Client: Got ", len, "B from ", m_RemoteAddr ? m_RemoteAddr->identHash.ToBase32 () : ""); + m_LocalSocket->send_to (boost::asio::buffer (buf, len), itr->second->first); + // mark convo as active + itr->second->second = i2p::util::GetMillisecondsSinceEpoch (); + } + } + else + LogPrint (eLogWarning, "UDP Client: Not tracking udp session using port ", (int) toPort); + } + +} +} diff --git a/libi2pd_client/UDPTunnel.h b/libi2pd_client/UDPTunnel.h new file mode 100644 index 00000000..5650124c --- /dev/null +++ b/libi2pd_client/UDPTunnel.h @@ -0,0 +1,189 @@ +/* +* Copyright (c) 2013-2024, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef UDPTUNNEL_H__ +#define UDPTUNNEL_H__ + +#include +#include +#include +#include +#include +#include +#include +#include "Identity.h" +#include "Destination.h" +#include "Datagram.h" +#include "AddressBook.h" + +namespace i2p +{ +namespace client +{ + /** 2 minute timeout for udp sessions */ + const uint64_t I2P_UDP_SESSION_TIMEOUT = 1000 * 60 * 2; + const uint64_t I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL = 100; // in milliseconds + + /** max size for i2p udp */ + const size_t I2P_UDP_MAX_MTU = 64*1024; + + struct UDPSession + { + i2p::datagram::DatagramDestination * m_Destination; + boost::asio::ip::udp::socket IPSocket; + i2p::data::IdentHash Identity; + boost::asio::ip::udp::endpoint FromEndpoint; + boost::asio::ip::udp::endpoint SendEndpoint; + uint64_t LastActivity; + + uint16_t LocalPort; + uint16_t RemotePort; + + uint8_t m_Buffer[I2P_UDP_MAX_MTU]; + + UDPSession(boost::asio::ip::udp::endpoint localEndpoint, + const std::shared_ptr & localDestination, + const boost::asio::ip::udp::endpoint& remote, const i2p::data::IdentHash& ident, + uint16_t ourPort, uint16_t theirPort); + void HandleReceived(const boost::system::error_code & ecode, std::size_t len); + void Receive(); + }; + + + /** read only info about a datagram session */ + struct DatagramSessionInfo + { + /** the name of this forward */ + std::string Name; + /** ident hash of local destination */ + std::shared_ptr LocalIdent; + /** ident hash of remote destination */ + std::shared_ptr RemoteIdent; + /** ident hash of IBGW in use currently in this session or nullptr if none is set */ + std::shared_ptr CurrentIBGW; + /** ident hash of OBEP in use for this session or nullptr if none is set */ + std::shared_ptr CurrentOBEP; + /** i2p router's udp endpoint */ + boost::asio::ip::udp::endpoint LocalEndpoint; + /** client's udp endpoint */ + boost::asio::ip::udp::endpoint RemoteEndpoint; + /** how long has this conversation been idle in ms */ + uint64_t idle; + }; + + typedef std::shared_ptr UDPSessionPtr; + + /** server side udp tunnel, many i2p inbound to 1 ip outbound */ + class I2PUDPServerTunnel + { + public: + + I2PUDPServerTunnel (const std::string & name, + std::shared_ptr localDestination, + const boost::asio::ip::address& localAddress, + const boost::asio::ip::udp::endpoint& forwardTo, uint16_t port, bool gzip); + ~I2PUDPServerTunnel (); + + /** expire stale udp conversations */ + void ExpireStale (const uint64_t delta=I2P_UDP_SESSION_TIMEOUT); + void Start (); + void Stop (); + const char * GetName () const { return m_Name.c_str(); } + std::vector > GetSessions (); + std::shared_ptr GetLocalDestination () const { return m_LocalDest; } + + void SetUniqueLocal (bool isUniqueLocal = true) { m_IsUniqueLocal = isUniqueLocal; } + + private: + + void HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + UDPSessionPtr ObtainUDPSession (const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort); + uint32_t GetSessionIndex (uint16_t fromPort, uint16_t toPort) const { return ((uint32_t)fromPort << 16) + toPort; } + + private: + + bool m_IsUniqueLocal; + const std::string m_Name; + boost::asio::ip::address m_LocalAddress; + boost::asio::ip::udp::endpoint m_RemoteEndpoint; + std::mutex m_SessionsMutex; + std::unordered_map m_Sessions; // (from port, to port)->session + std::shared_ptr m_LocalDest; + UDPSessionPtr m_LastSession; + uint16_t m_inPort; + bool m_Gzip; + + public: + + bool isUpdated; // transient, used during reload only + }; + + class I2PUDPClientTunnel + { + public: + + I2PUDPClientTunnel (const std::string & name, const std::string &remoteDest, + const boost::asio::ip::udp::endpoint& localEndpoint, std::shared_ptr localDestination, + uint16_t remotePort, bool gzip); + ~I2PUDPClientTunnel (); + + void Start (); + void Stop (); + const char * GetName () const { return m_Name.c_str(); } + std::vector > GetSessions (); + + bool IsLocalDestination (const i2p::data::IdentHash & destination) const { return destination == m_LocalDest->GetIdentHash(); } + + std::shared_ptr GetLocalDestination () const { return m_LocalDest; } + inline void SetLocalDestination (std::shared_ptr dest) + { + if (m_LocalDest) m_LocalDest->Release (); + if (dest) dest->Acquire (); + m_LocalDest = dest; + } + + void ExpireStale (const uint64_t delta=I2P_UDP_SESSION_TIMEOUT); + + private: + + typedef std::pair UDPConvo; + void RecvFromLocal (); + void HandleRecvFromLocal (const boost::system::error_code & e, std::size_t transferred); + void HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); + void TryResolving (); + + private: + + const std::string m_Name; + std::mutex m_SessionsMutex; + std::unordered_map > m_Sessions; // maps i2p port -> local udp convo + const std::string m_RemoteDest; + std::shared_ptr m_LocalDest; + const boost::asio::ip::udp::endpoint m_LocalEndpoint; + std::shared_ptr m_RemoteAddr; + std::thread * m_ResolveThread; + std::unique_ptr m_LocalSocket; + boost::asio::ip::udp::endpoint m_RecvEndpoint; + uint8_t m_RecvBuff[I2P_UDP_MAX_MTU]; + uint16_t RemotePort, m_LastPort; + bool m_cancel_resolve; + bool m_Gzip; + std::shared_ptr m_LastSession; + + public: + + bool isUpdated; // transient, used during reload only + }; + + +} +} + +#endif diff --git a/libi2pd_client/WebSocks.cpp b/libi2pd_client/WebSocks.cpp deleted file mode 100644 index ee64001d..00000000 --- a/libi2pd_client/WebSocks.cpp +++ /dev/null @@ -1,556 +0,0 @@ -#include "WebSocks.h" -#include "Log.h" -#include - -#ifdef WITH_EVENTS -#include "ClientContext.h" -#include "Identity.h" -#include "Destination.h" -#include "Streaming.h" -#include - -#include -#include - -#include -#define GCC47_BOOST149 ((BOOST_VERSION == 104900) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) -#if !GCC47_BOOST149 -#include -#endif - -namespace i2p -{ -namespace client -{ - typedef websocketpp::server WebSocksServerImpl; - - typedef std::function)> StreamConnectFunc; - - - struct IWebSocksConn : public I2PServiceHandler - { - IWebSocksConn(I2PService * parent) : I2PServiceHandler(parent) {} - virtual void Close() = 0; - virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg) = 0; - }; - - typedef std::shared_ptr WebSocksConn_ptr; - - WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent); - - class WebSocksImpl - { - - typedef std::mutex mutex_t; - typedef std::unique_lock lock_t; - - typedef std::shared_ptr Destination_t; - public: - - typedef WebSocksServerImpl ServerImpl; - typedef ServerImpl::message_ptr MessagePtr; - - WebSocksImpl(const std::string & addr, int port) : - Parent(nullptr), - m_Run(false), - m_Addr(addr), - m_Port(port), - m_Thread(nullptr) - { - m_Server.init_asio(); - m_Server.set_open_handler(std::bind(&WebSocksImpl::ConnOpened, this, std::placeholders::_1)); - } - - void InitializeDestination(WebSocks * parent) - { - Parent = parent; - m_Dest = Parent->GetLocalDestination(); - } - - ServerImpl::connection_ptr GetConn(const websocketpp::connection_hdl & conn) - { - return m_Server.get_con_from_hdl(conn); - } - - void CloseConn(const websocketpp::connection_hdl & conn) - { - auto c = GetConn(conn); - if(c) c->close(websocketpp::close::status::normal, "closed"); - } - - void CreateStreamTo(const std::string & addr, int port, StreamConnectFunc complete) - { - auto & addressbook = i2p::client::context.GetAddressBook(); - i2p::data::IdentHash ident; - if(addressbook.GetIdentHash(addr, ident)) { - // address found - m_Dest->CreateStream(complete, ident, port); - } else { - // not found - complete(nullptr); - } - } - - void ConnOpened(websocketpp::connection_hdl conn) - { - auto ptr = CreateWebSocksConn(conn, this); - Parent->AddHandler(ptr); - m_Conns.push_back(ptr); - } - - void Start() - { - if(m_Run) return; // already started - m_Server.listen(boost::asio::ip::address::from_string(m_Addr), m_Port); - m_Server.start_accept(); - m_Run = true; - m_Thread = new std::thread([&] (){ - while(m_Run) { - try { - m_Server.run(); - } catch( std::exception & ex) { - LogPrint(eLogError, "Websocks runtime exception: ", ex.what()); - } - } - }); - m_Dest->Start(); - } - - void Stop() - { - for(const auto & conn : m_Conns) - conn->Close(); - - m_Dest->Stop(); - m_Run = false; - m_Server.stop(); - if(m_Thread) { - m_Thread->join(); - delete m_Thread; - } - m_Thread = nullptr; - } - - boost::asio::ip::tcp::endpoint GetLocalEndpoint() - { - return boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(m_Addr), m_Port); - } - - i2p::datagram::DatagramDestination * GetDatagramDest() const - { - auto dgram = m_Dest->GetDatagramDestination(); - if(!dgram) dgram = m_Dest->CreateDatagramDestination(); - return dgram; - } - - WebSocks * Parent; - - private: - std::vector m_Conns; - bool m_Run; - ServerImpl m_Server; - std::string m_Addr; - int m_Port; - std::thread * m_Thread; - Destination_t m_Dest; - }; - - struct WebSocksConn : public IWebSocksConn , public std::enable_shared_from_this - { - enum ConnState - { - eWSCInitial, - eWSCTryConnect, - eWSCFailConnect, - eWSCOkayConnect, - eWSCDatagram, - eWSCClose, - eWSCEnd - }; - - typedef WebSocksServerImpl ServerImpl; - typedef ServerImpl::message_ptr Message_t; - typedef websocketpp::connection_hdl ServerConn; - typedef std::shared_ptr Destination_t; - typedef std::shared_ptr StreamDest_t; - typedef std::shared_ptr Stream_t; - - ServerConn m_Conn; - Stream_t m_Stream; - ConnState m_State; - WebSocksImpl * m_Parent; - std::string m_RemoteAddr; - int m_RemotePort; - uint8_t m_RecvBuf[2048]; - bool m_IsDatagram; - i2p::datagram::DatagramDestination * m_Datagram; - - WebSocksConn(const ServerConn & conn, WebSocksImpl * parent) : - IWebSocksConn(parent->Parent), - m_Conn(conn), - m_Stream(nullptr), - m_State(eWSCInitial), - m_Parent(parent), - m_IsDatagram(false), - m_Datagram(nullptr) - { - - } - - ~WebSocksConn() - { - Close(); - } - - void HandleDatagram(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) - { - auto conn = m_Parent->GetConn(m_Conn); - if(conn) - { - std::stringstream ss; - ss << from.GetIdentHash().ToBase32(); - ss << ".b32.i2p:"; - ss << std::to_string(fromPort); - ss << "\n"; - ss.write((char *)buf, len); - conn->send(ss.str()); - } - } - - void BeginDatagram() - { - m_Datagram = m_Parent->GetDatagramDest(); - m_Datagram->SetReceiver( - std::bind( - &WebSocksConn::HandleDatagram, - this, - std::placeholders::_1, - std::placeholders::_2, - std::placeholders::_3, - std::placeholders::_4, - std::placeholders::_5), m_RemotePort); - } - - void EnterState(ConnState state) - { - LogPrint(eLogDebug, "websocks: state ", m_State, " -> ", state); - switch(m_State) - { - case eWSCInitial: - if (state == eWSCClose) { - m_State = eWSCClose; - // connection was opened but never used - LogPrint(eLogInfo, "websocks: connection closed but never used"); - Close(); - return; - } else if (state == eWSCTryConnect) { - // we will try to connect - m_State = eWSCTryConnect; - m_Parent->CreateStreamTo(m_RemoteAddr, m_RemotePort, std::bind(&WebSocksConn::ConnectResult, this, std::placeholders::_1)); - } else if (state == eWSCDatagram) { - if (m_RemotePort >= 0 && m_RemotePort <= 65535) - { - LogPrint(eLogDebug, "websocks: datagram mode initiated"); - m_State = eWSCDatagram; - BeginDatagram(); - SendResponse(""); - } - else - SendResponse("invalid port"); - } else { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - return; - case eWSCTryConnect: - if(state == eWSCOkayConnect) { - // we connected okay - LogPrint(eLogDebug, "websocks: connected to ", m_RemoteAddr, ":", m_RemotePort); - SendResponse(""); - m_State = eWSCOkayConnect; - } else if(state == eWSCFailConnect) { - // we did not connect okay - LogPrint(eLogDebug, "websocks: failed to connect to ", m_RemoteAddr, ":", m_RemotePort); - SendResponse("failed to connect"); - m_State = eWSCFailConnect; - EnterState(eWSCInitial); - } else if(state == eWSCClose) { - // premature close - LogPrint(eLogWarning, "websocks: websocket connection closed prematurely"); - m_State = eWSCClose; - } else { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - return; - case eWSCFailConnect: - if (state == eWSCInitial) { - // reset to initial state so we can try connecting again - m_RemoteAddr = ""; - m_RemotePort = 0; - LogPrint(eLogDebug, "websocks: reset websocket conn to initial state"); - m_State = eWSCInitial; - } else if (state == eWSCClose) { - // we are going to close the connection - m_State = eWSCClose; - Close(); - } else { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - return; - case eWSCDatagram: - if(state != eWSCClose) { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - m_State = eWSCClose; - Close(); - return; - case eWSCOkayConnect: - if(state == eWSCClose) { - // graceful close - m_State = eWSCClose; - Close(); - } else { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - return; - case eWSCClose: - if(state == eWSCEnd) { - LogPrint(eLogDebug, "websocks: socket ended"); - Kill(); - auto me = shared_from_this(); - Done(me); - } else { - LogPrint(eLogWarning, "websocks: invalid state change ", m_State, " -> ", state); - } - return; - default: - LogPrint(eLogError, "websocks: bad state ", m_State); - } - } - - void StartForwarding() - { - LogPrint(eLogDebug, "websocks: begin forwarding data"); - uint8_t b[1]; - m_Stream->Send(b, 0); - AsyncRecv(); - } - - void HandleAsyncRecv(const boost::system::error_code &ec, std::size_t n) - { - if(ec) { - // error - LogPrint(eLogWarning, "websocks: connection error ", ec.message()); - EnterState(eWSCClose); - } else { - // forward data - LogPrint(eLogDebug, "websocks recv ", n); - - std::string str((char*)m_RecvBuf, n); - auto conn = m_Parent->GetConn(m_Conn); - if(!conn) { - LogPrint(eLogWarning, "websocks: connection is gone"); - EnterState(eWSCClose); - return; - } - conn->send(str); - AsyncRecv(); - - } - } - - void AsyncRecv() - { - m_Stream->AsyncReceive( - boost::asio::buffer(m_RecvBuf, sizeof(m_RecvBuf)), - std::bind(&WebSocksConn::HandleAsyncRecv, this, std::placeholders::_1, std::placeholders::_2), 60); - } - - /** @brief send error message or empty string for success */ - void SendResponse(const std::string & errormsg) - { - boost::property_tree::ptree resp; - if(errormsg.size()) { - resp.put("error", errormsg); - resp.put("success", 0); - } else { - resp.put("success", 1); - } - std::ostringstream ss; - write_json(ss, resp); - auto conn = m_Parent->GetConn(m_Conn); - if(conn) conn->send(ss.str()); - } - - void ConnectResult(Stream_t stream) - { - m_Stream = stream; - if(m_State == eWSCClose) { - // premature close of websocket - Close(); - return; - } - if(m_Stream) { - // connect good - EnterState(eWSCOkayConnect); - StartForwarding(); - } else { - // connect failed - EnterState(eWSCFailConnect); - } - } - - virtual void GotMessage(const websocketpp::connection_hdl & conn, WebSocksServerImpl::message_ptr msg) - { - (void) conn; - std::string payload = msg->get_payload(); - if(m_State == eWSCOkayConnect) - { - // forward to server - LogPrint(eLogDebug, "websocks: forward ", payload.size()); - m_Stream->Send((uint8_t*)payload.c_str(), payload.size()); - } else if (m_State == eWSCInitial) { - // recv connect request - auto itr = payload.find(":"); - if(itr == std::string::npos) { - // no port - m_RemotePort = 0; - m_RemoteAddr = payload; - } else { - // includes port - m_RemotePort = std::stoi(payload.substr(itr+1)); - m_RemoteAddr = payload.substr(0, itr); - } - m_IsDatagram = m_RemoteAddr == "DATAGRAM"; - if(m_IsDatagram) - EnterState(eWSCDatagram); - else - EnterState(eWSCTryConnect); - } else if (m_State == eWSCDatagram) { - // send datagram - // format is "host:port\npayload" - auto idx = payload.find("\n"); - std::string line = payload.substr(0, idx); - auto itr = line.find(":"); - auto & addressbook = i2p::client::context.GetAddressBook(); - std::string addr; - int port = 0; - if (itr == std::string::npos) - { - addr = line; - } - else - { - addr = line.substr(0, itr); - port = std::atoi(line.substr(itr+1).c_str()); - } - i2p::data::IdentHash ident; - if(addressbook.GetIdentHash(addr, ident)) - { - const char * data = payload.c_str() + idx + 1; - size_t len = payload.size() - (1 + line.size()); - m_Datagram->SendDatagramTo((const uint8_t*)data, len, ident, m_RemotePort, port); - } - } else { - // wtf? - LogPrint(eLogWarning, "websocks: got message in invalid state ", m_State); - } - } - - virtual void Close() - { - if(m_State == eWSCClose) { - LogPrint(eLogDebug, "websocks: closing connection"); - if(m_Stream) m_Stream->Close(); - if(m_Datagram) m_Datagram->ResetReceiver(m_RemotePort); - m_Parent->CloseConn(m_Conn); - EnterState(eWSCEnd); - } else { - EnterState(eWSCClose); - } - } - }; - - WebSocksConn_ptr CreateWebSocksConn(const websocketpp::connection_hdl & conn, WebSocksImpl * parent) - { - auto ptr = std::make_shared(conn, parent); - auto c = parent->GetConn(conn); - c->set_message_handler(std::bind(&WebSocksConn::GotMessage, ptr.get(), std::placeholders::_1, std::placeholders::_2)); - return ptr; - } - -} -} -#else - -// no websocket support - -namespace i2p -{ -namespace client -{ - class WebSocksImpl - { - public: - WebSocksImpl(const std::string & addr, int port) : m_Addr(addr), m_Port(port) - { - } - - ~WebSocksImpl() - { - } - - void Start() - { - LogPrint(eLogInfo, "WebSockets not enabled on compile time"); - } - - void Stop() - { - } - - void InitializeDestination(WebSocks * parent) - { - } - - boost::asio::ip::tcp::endpoint GetLocalEndpoint() - { - return boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(m_Addr), m_Port); - } - - std::string m_Addr; - int m_Port; - - }; -} -} - -#endif -namespace i2p -{ -namespace client -{ - WebSocks::WebSocks(const std::string & addr, int port, std::shared_ptr localDestination) : m_Impl(new WebSocksImpl(addr, port)) - { - m_Impl->InitializeDestination(this); - } - WebSocks::~WebSocks() { delete m_Impl; } - - void WebSocks::Start() - { - m_Impl->Start(); - GetLocalDestination()->Start(); - } - - boost::asio::ip::tcp::endpoint WebSocks::GetLocalEndpoint() const - { - return m_Impl->GetLocalEndpoint(); - } - - void WebSocks::Stop() - { - m_Impl->Stop(); - GetLocalDestination()->Stop(); - } -} -} - diff --git a/libi2pd_client/WebSocks.h b/libi2pd_client/WebSocks.h deleted file mode 100644 index 2314659f..00000000 --- a/libi2pd_client/WebSocks.h +++ /dev/null @@ -1,34 +0,0 @@ -#ifndef WEBSOCKS_H_ -#define WEBSOCKS_H_ -#include -#include -#include "I2PService.h" -#include "Destination.h" - -namespace i2p -{ -namespace client -{ - - class WebSocksImpl; - - /** @brief websocket socks proxy server */ - class WebSocks : public i2p::client::I2PService - { - public: - WebSocks(const std::string & addr, int port, std::shared_ptr localDestination); - ~WebSocks(); - - void Start(); - void Stop(); - - boost::asio::ip::tcp::endpoint GetLocalEndpoint() const; - - const char * GetName() { return "WebSOCKS Proxy"; } - - private: - WebSocksImpl * m_Impl; - }; -} -} -#endif diff --git a/libi2pd_client/Websocket.cpp b/libi2pd_client/Websocket.cpp deleted file mode 100644 index 3d456655..00000000 --- a/libi2pd_client/Websocket.cpp +++ /dev/null @@ -1,195 +0,0 @@ -#ifdef WITH_EVENTS -#include "Websocket.h" -#include "Log.h" - -#include -#include - -#include -#include -#include -#define GCC47_BOOST149 ((BOOST_VERSION == 104900) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) -#if !GCC47_BOOST149 -#include -#endif - -#include - -namespace i2p -{ - namespace event - { - - typedef websocketpp::server ServerImpl; - typedef websocketpp::connection_hdl ServerConn; - - class WebsocketServerImpl : public EventListener - { - private: - typedef ServerImpl::message_ptr MessagePtr; - public: - - WebsocketServerImpl(const std::string & addr, int port) : - m_run(false), - m_ws_thread(nullptr), - m_ev_thread(nullptr), - m_WebsocketTicker(m_Service) - { - m_server.init_asio(); - m_server.set_open_handler(std::bind(&WebsocketServerImpl::ConnOpened, this, std::placeholders::_1)); - m_server.set_close_handler(std::bind(&WebsocketServerImpl::ConnClosed, this, std::placeholders::_1)); - m_server.set_message_handler(std::bind(&WebsocketServerImpl::OnConnMessage, this, std::placeholders::_1, std::placeholders::_2)); - - m_server.listen(boost::asio::ip::address::from_string(addr), port); - } - - ~WebsocketServerImpl() - { - } - - void Start() { - m_run = true; - m_server.start_accept(); - m_ws_thread = new std::thread([&] () { - while(m_run) { - try { - m_server.run(); - } catch (std::exception & e ) { - LogPrint(eLogError, "Websocket server: ", e.what()); - } - } - }); - m_ev_thread = new std::thread([&] () { - while(m_run) { - try { - m_Service.run(); - break; - } catch (std::exception & e ) { - LogPrint(eLogError, "Websocket service: ", e.what()); - } - } - }); - ScheduleTick(); - } - - void Stop() { - m_run = false; - m_Service.stop(); - m_server.stop(); - - if(m_ev_thread) { - m_ev_thread->join(); - delete m_ev_thread; - } - m_ev_thread = nullptr; - - if(m_ws_thread) { - m_ws_thread->join(); - delete m_ws_thread; - } - m_ws_thread = nullptr; - } - - void ConnOpened(ServerConn c) - { - std::lock_guard lock(m_connsMutex); - m_conns.insert(c); - } - - void ConnClosed(ServerConn c) - { - std::lock_guard lock(m_connsMutex); - m_conns.erase(c); - } - - void OnConnMessage(ServerConn conn, ServerImpl::message_ptr msg) - { - (void) conn; - (void) msg; - } - - void HandleTick(const boost::system::error_code & ec) - { - - if(ec != boost::asio::error::operation_aborted) - LogPrint(eLogError, "Websocket ticker: ", ec.message()); - // pump collected events to us - i2p::event::core.PumpCollected(this); - ScheduleTick(); - } - - void ScheduleTick() - { - LogPrint(eLogDebug, "Websocket schedule tick"); - boost::posix_time::seconds dlt(1); - m_WebsocketTicker.expires_from_now(dlt); - m_WebsocketTicker.async_wait(std::bind(&WebsocketServerImpl::HandleTick, this, std::placeholders::_1)); - } - - /** @brief called from m_ev_thread */ - void HandlePumpEvent(const EventType & ev, const uint64_t & val) - { - EventType e; - for (const auto & i : ev) - e[i.first] = i.second; - - e["number"] = std::to_string(val); - HandleEvent(e); - } - - /** @brief called from m_ws_thread */ - void HandleEvent(const EventType & ev) - { - std::lock_guard lock(m_connsMutex); - boost::property_tree::ptree event; - for (const auto & item : ev) { - event.put(item.first, item.second); - } - std::ostringstream ss; - write_json(ss, event); - std::string s = ss.str(); - - ConnList::iterator it; - for (it = m_conns.begin(); it != m_conns.end(); ++it) { - ServerImpl::connection_ptr con = m_server.get_con_from_hdl(*it); - con->send(s); - } - } - - private: - typedef std::set > ConnList; - bool m_run; - std::thread * m_ws_thread; - std::thread * m_ev_thread; - std::mutex m_connsMutex; - ConnList m_conns; - ServerImpl m_server; - boost::asio::io_service m_Service; - boost::asio::deadline_timer m_WebsocketTicker; - }; - - - WebsocketServer::WebsocketServer(const std::string & addr, int port) : m_impl(new WebsocketServerImpl(addr, port)) {} - WebsocketServer::~WebsocketServer() - { - delete m_impl; - } - - - void WebsocketServer::Start() - { - m_impl->Start(); - } - - void WebsocketServer::Stop() - { - m_impl->Stop(); - } - - EventListener * WebsocketServer::ToListener() - { - return m_impl; - } - } -} -#endif diff --git a/libi2pd_client/Websocket.h b/libi2pd_client/Websocket.h deleted file mode 100644 index 3a754e49..00000000 --- a/libi2pd_client/Websocket.h +++ /dev/null @@ -1,28 +0,0 @@ -#ifndef WEBSOCKET_H__ -#define WEBSOCKET_H__ -#include "Event.h" -namespace i2p -{ - namespace event - { - - class WebsocketServerImpl; - - class WebsocketServer - { - public: - WebsocketServer(const std::string & addr, int port); - ~WebsocketServer(); - - void Start(); - void Stop(); - - EventListener * ToListener(); - - private: - WebsocketServerImpl * m_impl; - }; - - } -} -#endif diff --git a/libi2pd_wrapper/api.go b/libi2pd_wrapper/api.go new file mode 100644 index 00000000..8c215f13 --- /dev/null +++ b/libi2pd_wrapper/api.go @@ -0,0 +1,15 @@ +package api + +/* +* Copyright (c) 2021-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree + */ + +/* +#cgo CXXFLAGS: -I${SRCDIR}/../i18n -I${SRCDIR}/../libi2pd_client -I${SRCDIR}/../libi2pd -g -Wall -Wextra -Wno-unused-parameter -pedantic -Wno-psabi -fPIC -D__AES__ -maes +#cgo LDFLAGS: -L${SRCDIR}/ -l:../libi2pdwrapper.a -l:../libi2pd.a -l:../libi2pdlang.a -latomic -lcrypto -lssl -lz -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread -lstdc++ +*/ +import "C" diff --git a/libi2pd_wrapper/api.swigcxx b/libi2pd_wrapper/api.swigcxx new file mode 100644 index 00000000..e1d18eef --- /dev/null +++ b/libi2pd_wrapper/api.swigcxx @@ -0,0 +1,8 @@ +// See swig.org for more interface options, +// e.g. map std::string to Go string + +%{ +#include "capi.h" +%} + +%include "capi.h" diff --git a/libi2pd_wrapper/capi.cpp b/libi2pd_wrapper/capi.cpp new file mode 100644 index 00000000..af4765da --- /dev/null +++ b/libi2pd_wrapper/capi.cpp @@ -0,0 +1,50 @@ +/* +* Copyright (c) 2021-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#include "../libi2pd/api.h" +#include "capi.h" +#include +#include +#include +#include + + +#ifdef __cplusplus +extern "C" { +#endif + +void C_InitI2P (int argc, char *argv[], const char * appName) +{ + std::cout << argv; + return i2p::api::InitI2P(argc, argv, appName); +} + +void C_TerminateI2P () +{ + return i2p::api::TerminateI2P(); +} + +void C_StartI2P () +{ + std::shared_ptr logStream; + return i2p::api::StartI2P(logStream); +} + +void C_StopI2P () +{ + return i2p::api::StopI2P(); +} + +void C_RunPeerTest () +{ + return i2p::api::RunPeerTest(); +} + +#ifdef __cplusplus +} +#endif diff --git a/libi2pd_wrapper/capi.h b/libi2pd_wrapper/capi.h new file mode 100644 index 00000000..aefd89f3 --- /dev/null +++ b/libi2pd_wrapper/capi.h @@ -0,0 +1,29 @@ +/* +* Copyright (c) 2021-2022, The PurpleI2P Project +* +* This file is part of Purple i2pd project and licensed under BSD3 +* +* See full license text in LICENSE file at top of project tree +*/ + +#ifndef CAPI_H__ +#define CAPI_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +// initialization start and stop +void C_InitI2P (int argc, char *argv[], const char * appName); +//void C_InitI2P (int argc, char** argv, const char * appName); +void C_TerminateI2P (); +void C_StartI2P (); +// write system log to logStream, if not specified to .log in application's folder +void C_StopI2P (); +void C_RunPeerTest (); // should be called after UPnP + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/qt/.gitignore b/qt/.gitignore deleted file mode 100644 index a0155cb2..00000000 --- a/qt/.gitignore +++ /dev/null @@ -1 +0,0 @@ -/build*/ diff --git a/qt/i2pd_qt/.gitignore b/qt/i2pd_qt/.gitignore deleted file mode 100644 index 3abca1bd..00000000 --- a/qt/i2pd_qt/.gitignore +++ /dev/null @@ -1,9 +0,0 @@ -i2pd_qt.pro.user* -moc_* -ui_* -qrc_* -i2pd_qt -Makefile* -*.stash -object_script.* -i2pd_qt_plugin_import.cpp \ No newline at end of file diff --git a/qt/i2pd_qt/ClientTunnelPane.cpp b/qt/i2pd_qt/ClientTunnelPane.cpp deleted file mode 100644 index 256d0510..00000000 --- a/qt/i2pd_qt/ClientTunnelPane.cpp +++ /dev/null @@ -1,203 +0,0 @@ -#include "ClientTunnelPane.h" -#include "ClientContext.h" -#include "SignatureTypeComboboxFactory.h" -#include "QVBoxLayout" - -ClientTunnelPane::ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow): - TunnelPane(tunnelsPageUpdateListener, tunconf, wrongInputPane_, wrongInputLabel_, mainWindow) {} - -void ClientTunnelPane::setGroupBoxTitle(const QString & title) { - clientTunnelNameGroupBox->setTitle(title); -} - -void ClientTunnelPane::deleteClientTunnelForm() { - TunnelPane::deleteTunnelForm(); - delete clientTunnelNameGroupBox; - clientTunnelNameGroupBox=nullptr; - - //gridLayoutWidget_2->deleteLater(); - //gridLayoutWidget_2=nullptr; -} - -int ClientTunnelPane::appendClientTunnelForm( - ClientTunnelConfig* tunnelConfig, QWidget *tunnelsFormGridLayoutWidget, int tunnelsRow, int height) { - - ClientTunnelPane& ui = *this; - - clientTunnelNameGroupBox = new QGroupBox(tunnelsFormGridLayoutWidget); - clientTunnelNameGroupBox->setObjectName(QStringLiteral("clientTunnelNameGroupBox")); - - //tunnel - gridLayoutWidget_2 = new QWidget(clientTunnelNameGroupBox); - - QComboBox *tunnelTypeComboBox = new QComboBox(gridLayoutWidget_2); - tunnelTypeComboBox->setObjectName(QStringLiteral("tunnelTypeComboBox")); - tunnelTypeComboBox->addItem("Client", i2p::client::I2P_TUNNELS_SECTION_TYPE_CLIENT); - tunnelTypeComboBox->addItem("Socks", i2p::client::I2P_TUNNELS_SECTION_TYPE_SOCKS); - tunnelTypeComboBox->addItem("Websocks", i2p::client::I2P_TUNNELS_SECTION_TYPE_WEBSOCKS); - tunnelTypeComboBox->addItem("HTTP Proxy", i2p::client::I2P_TUNNELS_SECTION_TYPE_HTTPPROXY); - tunnelTypeComboBox->addItem("UDP Client", i2p::client::I2P_TUNNELS_SECTION_TYPE_UDPCLIENT); - - int h=(7+4)*60; - gridLayoutWidget_2->setGeometry(QRect(0, 0, 561, h)); - clientTunnelNameGroupBox->setGeometry(QRect(0, 0, 561, h)); - - { - const QString& type = tunnelConfig->getType(); - int index=0; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_CLIENT)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_SOCKS)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_WEBSOCKS)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_HTTPPROXY)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_UDPCLIENT)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - } - - setupTunnelPane(tunnelConfig, - clientTunnelNameGroupBox, - gridLayoutWidget_2, tunnelTypeComboBox, - tunnelsFormGridLayoutWidget, tunnelsRow, height, h); - //this->tunnelGroupBox->setGeometry(QRect(0, tunnelsFormGridLayoutWidget->height()+10, 561, (7+5)*40+10)); - - /* - std::string destination; - */ - - //host - ui.horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.destinationLabel = new QLabel(gridLayoutWidget_2); - destinationLabel->setObjectName(QStringLiteral("destinationLabel")); - horizontalLayout_2->addWidget(destinationLabel); - ui.destinationLineEdit = new QLineEdit(gridLayoutWidget_2); - destinationLineEdit->setObjectName(QStringLiteral("destinationLineEdit")); - destinationLineEdit->setText(tunnelConfig->getdest().c_str()); - QObject::connect(destinationLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(destinationLineEdit); - ui.destinationHorizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(destinationHorizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - - /* - * int port; - */ - int gridIndex = 2; - { - int port = tunnelConfig->getport(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.portLabel = new QLabel(gridLayoutWidget_2); - portLabel->setObjectName(QStringLiteral("portLabel")); - horizontalLayout_2->addWidget(portLabel); - ui.portLineEdit = new QLineEdit(gridLayoutWidget_2); - portLineEdit->setObjectName(QStringLiteral("portLineEdit")); - portLineEdit->setText(QString::number(port)); - portLineEdit->setMaximumWidth(80); - QObject::connect(portLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(portLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - /* - * std::string keys; -*/ - { - std::string keys = tunnelConfig->getkeys(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.keysLabel = new QLabel(gridLayoutWidget_2); - keysLabel->setObjectName(QStringLiteral("keysLabel")); - horizontalLayout_2->addWidget(keysLabel); - ui.keysLineEdit = new QLineEdit(gridLayoutWidget_2); - keysLineEdit->setObjectName(QStringLiteral("keysLineEdit")); - keysLineEdit->setText(keys.c_str()); - QObject::connect(keysLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(keysLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - /* - * std::string address; - */ - { - std::string address = tunnelConfig->getaddress(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.addressLabel = new QLabel(gridLayoutWidget_2); - addressLabel->setObjectName(QStringLiteral("addressLabel")); - horizontalLayout_2->addWidget(addressLabel); - ui.addressLineEdit = new QLineEdit(gridLayoutWidget_2); - addressLineEdit->setObjectName(QStringLiteral("addressLineEdit")); - addressLineEdit->setText(address.c_str()); - QObject::connect(addressLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(addressLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - - /* - int destinationPort; - i2p::data::SigningKeyType sigType; -*/ - { - int destinationPort = tunnelConfig->getdestinationPort(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.destinationPortLabel = new QLabel(gridLayoutWidget_2); - destinationPortLabel->setObjectName(QStringLiteral("destinationPortLabel")); - horizontalLayout_2->addWidget(destinationPortLabel); - ui.destinationPortLineEdit = new QLineEdit(gridLayoutWidget_2); - destinationPortLineEdit->setObjectName(QStringLiteral("destinationPortLineEdit")); - destinationPortLineEdit->setText(QString::number(destinationPort)); - destinationPortLineEdit->setMaximumWidth(80); - QObject::connect(destinationPortLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(destinationPortLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - i2p::data::SigningKeyType sigType = tunnelConfig->getsigType(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.sigTypeLabel = new QLabel(gridLayoutWidget_2); - sigTypeLabel->setObjectName(QStringLiteral("sigTypeLabel")); - horizontalLayout_2->addWidget(sigTypeLabel); - ui.sigTypeComboBox = SignatureTypeComboBoxFactory::createSignatureTypeComboBox(gridLayoutWidget_2, sigType); - sigTypeComboBox->setObjectName(QStringLiteral("sigTypeComboBox")); - QObject::connect(sigTypeComboBox, SIGNAL(currentIndexChanged(int)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(sigTypeComboBox); - QPushButton * lockButton2 = new QPushButton(gridLayoutWidget_2); - horizontalLayout_2->addWidget(lockButton2); - widgetlocks.add(new widgetlock(sigTypeComboBox, lockButton2)); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - I2CPParameters& i2cpParameters = tunnelConfig->getI2cpParameters(); - appendControlsForI2CPParameters(i2cpParameters, gridIndex); - } - - retranslateClientTunnelForm(ui); - - tunnelGridLayout->invalidate(); - - return h; -} - -ServerTunnelPane* ClientTunnelPane::asServerTunnelPane(){return nullptr;} -ClientTunnelPane* ClientTunnelPane::asClientTunnelPane(){return this;} diff --git a/qt/i2pd_qt/ClientTunnelPane.h b/qt/i2pd_qt/ClientTunnelPane.h deleted file mode 100644 index c2e076b7..00000000 --- a/qt/i2pd_qt/ClientTunnelPane.h +++ /dev/null @@ -1,106 +0,0 @@ -#ifndef CLIENTTUNNELPANE_H -#define CLIENTTUNNELPANE_H - -#include "QGridLayout" -#include "QVBoxLayout" - -#include "TunnelPane.h" - -class ClientTunnelConfig; - -class ServerTunnelPane; -class TunnelPane; - -class ClientTunnelPane : public TunnelPane { - Q_OBJECT -public: - ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow); - virtual ~ClientTunnelPane(){} - virtual ServerTunnelPane* asServerTunnelPane(); - virtual ClientTunnelPane* asClientTunnelPane(); - int appendClientTunnelForm(ClientTunnelConfig* tunnelConfig, QWidget *tunnelsFormGridLayoutWidget, - int tunnelsRow, int height); - void deleteClientTunnelForm(); -private: - QGroupBox *clientTunnelNameGroupBox; - - //tunnel - QWidget *gridLayoutWidget_2; - - //destination - QHBoxLayout *horizontalLayout_2; - QLabel *destinationLabel; - QLineEdit *destinationLineEdit; - QSpacerItem *destinationHorizontalSpacer; - - //port - QLabel * portLabel; - QLineEdit * portLineEdit; - - //keys - QLabel * keysLabel; - QLineEdit * keysLineEdit; - - //address - QLabel * addressLabel; - QLineEdit * addressLineEdit; - - //destinationPort - QLabel * destinationPortLabel; - QLineEdit * destinationPortLineEdit; - - //sigType - QLabel * sigTypeLabel; - QComboBox * sigTypeComboBox; - -protected slots: - virtual void setGroupBoxTitle(const QString & title); - -private: - void retranslateClientTunnelForm(ClientTunnelPane& /*ui*/) { - typeLabel->setText(QApplication::translate("cltTunForm", "Client tunnel type:", 0)); - destinationLabel->setText(QApplication::translate("cltTunForm", "Destination:", 0)); - portLabel->setText(QApplication::translate("cltTunForm", "Port:", 0)); - keysLabel->setText(QApplication::translate("cltTunForm", "Keys:", 0)); - destinationPortLabel->setText(QApplication::translate("cltTunForm", "Destination port:", 0)); - addressLabel->setText(QApplication::translate("cltTunForm", "Address:", 0)); - sigTypeLabel->setText(QApplication::translate("cltTunForm", "Signature type:", 0)); - } -protected: - virtual bool applyDataFromUIToTunnelConfig() { - QString cannotSaveSettings = QApplication::tr("Cannot save settings."); - bool ok=TunnelPane::applyDataFromUIToTunnelConfig(); - if(!ok)return false; - ClientTunnelConfig* ctc=tunnelConfig->asClientTunnelConfig(); - assert(ctc!=nullptr); - - //destination - ctc->setdest(destinationLineEdit->text().toStdString()); - - auto portStr=portLineEdit->text(); - int portInt=portStr.toInt(&ok); - - if(!ok){ - highlightWrongInput(QApplication::tr("Bad port, must be int.")+" "+cannotSaveSettings,portLineEdit); - return false; - } - ctc->setport(portInt); - - ctc->setkeys(keysLineEdit->text().toStdString()); - - ctc->setaddress(addressLineEdit->text().toStdString()); - - auto dportStr=destinationPortLineEdit->text(); - int dportInt=dportStr.toInt(&ok); - if(!ok){ - highlightWrongInput(QApplication::tr("Bad destinationPort, must be int.")+" "+cannotSaveSettings,destinationPortLineEdit); - return false; - } - ctc->setdestinationPort(dportInt); - - ctc->setsigType(readSigTypeComboboxUI(sigTypeComboBox)); - return true; - } -}; - -#endif // CLIENTTUNNELPANE_H diff --git a/qt/i2pd_qt/DaemonQT.cpp b/qt/i2pd_qt/DaemonQT.cpp deleted file mode 100644 index f5e6d62b..00000000 --- a/qt/i2pd_qt/DaemonQT.cpp +++ /dev/null @@ -1,187 +0,0 @@ -#include - -#include "DaemonQT.h" -#include "Daemon.h" -#include "mainwindow.h" - -#include "Log.h" - -#include -#include -#include -#include - -namespace i2p -{ -namespace qt -{ - Worker::Worker (DaemonQTImpl& daemon): - m_Daemon (daemon) - { - } - - void Worker::startDaemon() - { - qDebug("Performing daemon start..."); - //try{ - m_Daemon.start(); - qDebug("Daemon started."); - emit resultReady(false, ""); - /*}catch(std::exception ex){ - emit resultReady(true, ex.what()); - }catch(...){ - emit resultReady(true, QObject::tr("Error: unknown exception")); - }*/ - } - void Worker::restartDaemon() - { - qDebug("Performing daemon restart..."); - //try{ - m_Daemon.restart(); - qDebug("Daemon restarted."); - emit resultReady(false, ""); - /*}catch(std::exception ex){ - emit resultReady(true, ex.what()); - }catch(...){ - emit resultReady(true, QObject::tr("Error: unknown exception")); - }*/ - } - void Worker::stopDaemon() { - qDebug("Performing daemon stop..."); - //try{ - m_Daemon.stop(); - qDebug("Daemon stopped."); - emit resultReady(false, ""); - /*}catch(std::exception ex){ - emit resultReady(true, ex.what()); - }catch(...){ - emit resultReady(true, QObject::tr("Error: unknown exception")); - }*/ - } - - Controller::Controller(DaemonQTImpl& daemon): - m_Daemon (daemon) - { - Worker *worker = new Worker (m_Daemon); - worker->moveToThread(&workerThread); - connect(&workerThread, &QThread::finished, worker, &QObject::deleteLater); - connect(this, &Controller::startDaemon, worker, &Worker::startDaemon); - connect(this, &Controller::stopDaemon, worker, &Worker::stopDaemon); - connect(this, &Controller::restartDaemon, worker, &Worker::restartDaemon); - connect(worker, &Worker::resultReady, this, &Controller::handleResults); - workerThread.start(); - } - Controller::~Controller() - { - qDebug("Closing and waiting for daemon worker thread..."); - workerThread.quit(); - workerThread.wait(); - qDebug("Waiting for daemon worker thread finished."); - if(m_Daemon.isRunning()) - { - qDebug("Stopping the daemon..."); - m_Daemon.stop(); - qDebug("Stopped the daemon."); - } - } - - DaemonQTImpl::DaemonQTImpl (): - mutex(nullptr), m_IsRunning(nullptr), m_RunningChangedCallback(nullptr) - { - } - - DaemonQTImpl::~DaemonQTImpl () - { - delete mutex; - } - - bool DaemonQTImpl::init(int argc, char* argv[], std::shared_ptr logstream) - { - mutex=new QMutex(QMutex::Recursive); - setRunningCallback(0); - m_IsRunning=false; - return Daemon.init(argc,argv,logstream); - } - - void DaemonQTImpl::start() - { - QMutexLocker locker(mutex); - setRunning(true); - Daemon.start(); - } - - void DaemonQTImpl::stop() - { - QMutexLocker locker(mutex); - Daemon.stop(); - setRunning(false); - } - - void DaemonQTImpl::restart() - { - QMutexLocker locker(mutex); - stop(); - start(); - } - - void DaemonQTImpl::setRunningCallback(runningChangedCallback cb) - { - m_RunningChangedCallback = cb; - } - - bool DaemonQTImpl::isRunning() - { - return m_IsRunning; - } - - void DaemonQTImpl::setRunning(bool newValue) - { - bool oldValue = m_IsRunning; - if(oldValue!=newValue) - { - m_IsRunning = newValue; - if(m_RunningChangedCallback) - m_RunningChangedCallback(); - } - } - - int RunQT (int argc, char* argv[]) - { - QApplication app(argc, argv); - int result; - - { - std::shared_ptr logstreamptr=std::make_shared(); - //TODO move daemon init deinit to a bg thread - DaemonQTImpl daemon; - (*logstreamptr) << "Initialising the daemon..." << std::endl; - bool daemonInitSuccess = daemon.init(argc, argv, logstreamptr); - if(!daemonInitSuccess) - { - QMessageBox::critical(0, "Error", "Daemon init failed"); - return 1; - } - LogPrint(eLogDebug, "Initialised, creating the main window..."); - MainWindow w(logstreamptr); - LogPrint(eLogDebug, "Before main window.show()..."); - w.show (); - - { - i2p::qt::Controller daemonQtController(daemon); - w.setI2PController(&daemonQtController); - LogPrint(eLogDebug, "Starting the daemon..."); - emit daemonQtController.startDaemon(); - //daemon.start (); - LogPrint(eLogDebug, "Starting GUI event loop..."); - result = app.exec(); - //daemon.stop (); - } - } - - //QMessageBox::information(&w, "Debug", "demon stopped"); - LogPrint(eLogDebug, "Exiting the application"); - return result; - } -} -} - diff --git a/qt/i2pd_qt/DaemonQT.h b/qt/i2pd_qt/DaemonQT.h deleted file mode 100644 index aa329f56..00000000 --- a/qt/i2pd_qt/DaemonQT.h +++ /dev/null @@ -1,88 +0,0 @@ -#ifndef DAEMONQT_H -#define DAEMONQT_H - -#include -#include -#include -#include -#include - -namespace i2p -{ -namespace qt -{ - class DaemonQTImpl - { - public: - - DaemonQTImpl (); - ~DaemonQTImpl (); - - typedef void (*runningChangedCallback)(); - - /** - * @brief init - * @param argc - * @param argv - * @return success - */ - bool init(int argc, char* argv[], std::shared_ptr logstream); - void start(); - void stop(); - void restart(); - void setRunningCallback(runningChangedCallback cb); - bool isRunning(); - private: - void setRunning(bool running); - void showError(std::string errorMsg); - private: - QMutex* mutex; - bool m_IsRunning; - runningChangedCallback m_RunningChangedCallback; - }; - - class Worker : public QObject - { - Q_OBJECT - public: - - Worker (DaemonQTImpl& daemon); - - private: - - DaemonQTImpl& m_Daemon; - - public slots: - void startDaemon(); - void restartDaemon(); - void stopDaemon(); - - signals: - void resultReady(bool failed, QString failureMessage); - }; - - class Controller : public QObject - { - Q_OBJECT - QThread workerThread; - public: - Controller(DaemonQTImpl& daemon); - ~Controller(); - private: - DaemonQTImpl& m_Daemon; - - public slots: - void handleResults(bool failed, QString failureMessage){ - if(failed){ - QMessageBox::critical(0, QObject::tr("Error"), failureMessage); - } - } - signals: - void startDaemon(); - void stopDaemon(); - void restartDaemon(); - }; -} -} - -#endif // DAEMONQT_H diff --git a/qt/i2pd_qt/MainWindowItems.cpp b/qt/i2pd_qt/MainWindowItems.cpp deleted file mode 100644 index c1e1ab0a..00000000 --- a/qt/i2pd_qt/MainWindowItems.cpp +++ /dev/null @@ -1,2 +0,0 @@ -#include "MainWindowItems.h" - diff --git a/qt/i2pd_qt/MainWindowItems.h b/qt/i2pd_qt/MainWindowItems.h deleted file mode 100644 index a4be5fe0..00000000 --- a/qt/i2pd_qt/MainWindowItems.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef MAINWINDOWITEMS_H -#define MAINWINDOWITEMS_H - -#include -#include -#include -#include -#include - -#include -#include - -#include "mainwindow.h" - -class MainWindow; - -#endif // MAINWINDOWITEMS_H diff --git a/qt/i2pd_qt/README.md b/qt/i2pd_qt/README.md deleted file mode 100644 index 94186ecf..00000000 --- a/qt/i2pd_qt/README.md +++ /dev/null @@ -1,3 +0,0 @@ -# Build Requirements - - * Qt 5 is necessary (because Qt4 lacks QtWidgets/ folder) diff --git a/qt/i2pd_qt/ServerTunnelPane.cpp b/qt/i2pd_qt/ServerTunnelPane.cpp deleted file mode 100644 index bc6389a9..00000000 --- a/qt/i2pd_qt/ServerTunnelPane.cpp +++ /dev/null @@ -1,261 +0,0 @@ -#include "ServerTunnelPane.h" -#include "ClientContext.h" -#include "SignatureTypeComboboxFactory.h" - -ServerTunnelPane::ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow): - TunnelPane(tunnelsPageUpdateListener, tunconf, wrongInputPane_, wrongInputLabel_, mainWindow) {} - -void ServerTunnelPane::setGroupBoxTitle(const QString & title) { - serverTunnelNameGroupBox->setTitle(title); -} - -int ServerTunnelPane::appendServerTunnelForm( - ServerTunnelConfig* tunnelConfig, QWidget *tunnelsFormGridLayoutWidget, int tunnelsRow, int height) { - - ServerTunnelPane& ui = *this; - - serverTunnelNameGroupBox = new QGroupBox(tunnelsFormGridLayoutWidget); - serverTunnelNameGroupBox->setObjectName(QStringLiteral("serverTunnelNameGroupBox")); - - //tunnel - gridLayoutWidget_2 = new QWidget(serverTunnelNameGroupBox); - - QComboBox *tunnelTypeComboBox = new QComboBox(gridLayoutWidget_2); - tunnelTypeComboBox->setObjectName(QStringLiteral("tunnelTypeComboBox")); - tunnelTypeComboBox->addItem("Server", i2p::client::I2P_TUNNELS_SECTION_TYPE_SERVER); - tunnelTypeComboBox->addItem("HTTP", i2p::client::I2P_TUNNELS_SECTION_TYPE_HTTP); - tunnelTypeComboBox->addItem("IRC", i2p::client::I2P_TUNNELS_SECTION_TYPE_IRC); - tunnelTypeComboBox->addItem("UDP Server", i2p::client::I2P_TUNNELS_SECTION_TYPE_UDPSERVER); - - int h=19*60; - gridLayoutWidget_2->setGeometry(QRect(0, 0, 561, h)); - serverTunnelNameGroupBox->setGeometry(QRect(0, 0, 561, h)); - - { - const QString& type = tunnelConfig->getType(); - int index=0; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_SERVER)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_HTTP)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_IRC)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - if(type==i2p::client::I2P_TUNNELS_SECTION_TYPE_UDPSERVER)tunnelTypeComboBox->setCurrentIndex(index); - ++index; - } - - setupTunnelPane(tunnelConfig, - serverTunnelNameGroupBox, - gridLayoutWidget_2, tunnelTypeComboBox, - tunnelsFormGridLayoutWidget, tunnelsRow, height, h); - //this->tunnelGroupBox->setGeometry(QRect(0, tunnelsFormGridLayoutWidget->height()+10, 561, 18*40+10)); - - //host - ui.horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.hostLabel = new QLabel(gridLayoutWidget_2); - hostLabel->setObjectName(QStringLiteral("hostLabel")); - horizontalLayout_2->addWidget(hostLabel); - ui.hostLineEdit = new QLineEdit(gridLayoutWidget_2); - hostLineEdit->setObjectName(QStringLiteral("hostLineEdit")); - hostLineEdit->setText(tunnelConfig->gethost().c_str()); - QObject::connect(hostLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(hostLineEdit); - ui.hostHorizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(hostHorizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - - int gridIndex = 2; - { - int port = tunnelConfig->getport(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.portLabel = new QLabel(gridLayoutWidget_2); - portLabel->setObjectName(QStringLiteral("portLabel")); - horizontalLayout_2->addWidget(portLabel); - ui.portLineEdit = new QLineEdit(gridLayoutWidget_2); - portLineEdit->setObjectName(QStringLiteral("portLineEdit")); - portLineEdit->setText(QString::number(port)); - portLineEdit->setMaximumWidth(80); - QObject::connect(portLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(portLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - std::string keys = tunnelConfig->getkeys(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.keysLabel = new QLabel(gridLayoutWidget_2); - keysLabel->setObjectName(QStringLiteral("keysLabel")); - horizontalLayout_2->addWidget(keysLabel); - ui.keysLineEdit = new QLineEdit(gridLayoutWidget_2); - keysLineEdit->setObjectName(QStringLiteral("keysLineEdit")); - keysLineEdit->setText(keys.c_str()); - QObject::connect(keysLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(keysLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - int inPort = tunnelConfig->getinPort(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.inPortLabel = new QLabel(gridLayoutWidget_2); - inPortLabel->setObjectName(QStringLiteral("inPortLabel")); - horizontalLayout_2->addWidget(inPortLabel); - ui.inPortLineEdit = new QLineEdit(gridLayoutWidget_2); - inPortLineEdit->setObjectName(QStringLiteral("inPortLineEdit")); - inPortLineEdit->setText(QString::number(inPort)); - inPortLineEdit->setMaximumWidth(80); - QObject::connect(inPortLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(inPortLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - std::string accessList = tunnelConfig->getaccessList(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.accessListLabel = new QLabel(gridLayoutWidget_2); - accessListLabel->setObjectName(QStringLiteral("accessListLabel")); - horizontalLayout_2->addWidget(accessListLabel); - ui.accessListLineEdit = new QLineEdit(gridLayoutWidget_2); - accessListLineEdit->setObjectName(QStringLiteral("accessListLineEdit")); - accessListLineEdit->setText(accessList.c_str()); - QObject::connect(accessListLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(accessListLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - std::string hostOverride = tunnelConfig->gethostOverride(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.hostOverrideLabel = new QLabel(gridLayoutWidget_2); - hostOverrideLabel->setObjectName(QStringLiteral("hostOverrideLabel")); - horizontalLayout_2->addWidget(hostOverrideLabel); - ui.hostOverrideLineEdit = new QLineEdit(gridLayoutWidget_2); - hostOverrideLineEdit->setObjectName(QStringLiteral("hostOverrideLineEdit")); - hostOverrideLineEdit->setText(hostOverride.c_str()); - QObject::connect(hostOverrideLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(hostOverrideLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - std::string webIRCPass = tunnelConfig->getwebircpass(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.webIRCPassLabel = new QLabel(gridLayoutWidget_2); - webIRCPassLabel->setObjectName(QStringLiteral("webIRCPassLabel")); - horizontalLayout_2->addWidget(webIRCPassLabel); - ui.webIRCPassLineEdit = new QLineEdit(gridLayoutWidget_2); - webIRCPassLineEdit->setObjectName(QStringLiteral("webIRCPassLineEdit")); - webIRCPassLineEdit->setText(webIRCPass.c_str()); - QObject::connect(webIRCPassLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(webIRCPassLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - bool gzip = tunnelConfig->getgzip(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.gzipCheckBox = new QCheckBox(gridLayoutWidget_2); - gzipCheckBox->setObjectName(QStringLiteral("gzipCheckBox")); - gzipCheckBox->setChecked(gzip); - QObject::connect(gzipCheckBox, SIGNAL(stateChanged(int)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(gzipCheckBox); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - i2p::data::SigningKeyType sigType = tunnelConfig->getsigType(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.sigTypeLabel = new QLabel(gridLayoutWidget_2); - sigTypeLabel->setObjectName(QStringLiteral("sigTypeLabel")); - horizontalLayout_2->addWidget(sigTypeLabel); - ui.sigTypeComboBox = SignatureTypeComboBoxFactory::createSignatureTypeComboBox(gridLayoutWidget_2, sigType); - sigTypeComboBox->setObjectName(QStringLiteral("sigTypeComboBox")); - QObject::connect(sigTypeComboBox, SIGNAL(currentIndexChanged(int)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(sigTypeComboBox); - QPushButton * lockButton2 = new QPushButton(gridLayoutWidget_2); - horizontalLayout_2->addWidget(lockButton2); - widgetlocks.add(new widgetlock(sigTypeComboBox, lockButton2)); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - std::string address = tunnelConfig->getaddress(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.addressLabel = new QLabel(gridLayoutWidget_2); - addressLabel->setObjectName(QStringLiteral("addressLabel")); - horizontalLayout_2->addWidget(addressLabel); - ui.addressLineEdit = new QLineEdit(gridLayoutWidget_2); - addressLineEdit->setObjectName(QStringLiteral("addressLineEdit")); - addressLineEdit->setText(address.c_str()); - QObject::connect(addressLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(addressLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - bool isUniqueLocal = tunnelConfig->getisUniqueLocal(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - ui.isUniqueLocalCheckBox = new QCheckBox(gridLayoutWidget_2); - isUniqueLocalCheckBox->setObjectName(QStringLiteral("isUniqueLocalCheckBox")); - isUniqueLocalCheckBox->setChecked(isUniqueLocal); - QObject::connect(gzipCheckBox, SIGNAL(stateChanged(int)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(isUniqueLocalCheckBox); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - I2CPParameters& i2cpParameters = tunnelConfig->getI2cpParameters(); - appendControlsForI2CPParameters(i2cpParameters, gridIndex); - } - - retranslateServerTunnelForm(ui); - - tunnelGridLayout->invalidate(); - - return h; -} - -void ServerTunnelPane::deleteServerTunnelForm() { - TunnelPane::deleteTunnelForm(); - delete serverTunnelNameGroupBox;//->deleteLater(); - serverTunnelNameGroupBox=nullptr; - - //gridLayoutWidget_2->deleteLater(); - //gridLayoutWidget_2=nullptr; -} - - -ServerTunnelPane* ServerTunnelPane::asServerTunnelPane(){return this;} -ClientTunnelPane* ServerTunnelPane::asClientTunnelPane(){return nullptr;} diff --git a/qt/i2pd_qt/ServerTunnelPane.h b/qt/i2pd_qt/ServerTunnelPane.h deleted file mode 100644 index 0a07267b..00000000 --- a/qt/i2pd_qt/ServerTunnelPane.h +++ /dev/null @@ -1,159 +0,0 @@ -#ifndef SERVERTUNNELPANE_H -#define SERVERTUNNELPANE_H - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "QVBoxLayout" -#include "QCheckBox" - -#include "assert.h" - -#include "TunnelPane.h" -#include "TunnelsPageUpdateListener.h" - -class ServerTunnelConfig; - -class ClientTunnelPane; - -class ServerTunnelPane : public TunnelPane { - Q_OBJECT - -public: - ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow); - virtual ~ServerTunnelPane(){} - - virtual ServerTunnelPane* asServerTunnelPane(); - virtual ClientTunnelPane* asClientTunnelPane(); - - int appendServerTunnelForm(ServerTunnelConfig* tunnelConfig, QWidget *tunnelsFormGridLayoutWidget, - int tunnelsRow, int height); - void deleteServerTunnelForm(); - -private: - QGroupBox *serverTunnelNameGroupBox; - - //tunnel - QWidget *gridLayoutWidget_2; - - //host - QHBoxLayout *horizontalLayout_2; - QLabel *hostLabel; - QLineEdit *hostLineEdit; - QSpacerItem *hostHorizontalSpacer; - - //port - QLabel * portLabel; - QLineEdit * portLineEdit; - - //keys - QLabel * keysLabel; - QLineEdit * keysLineEdit; - - //inPort - QLabel * inPortLabel; - QLineEdit * inPortLineEdit; - - //accessList - QLabel * accessListLabel; - QLineEdit * accessListLineEdit; - - //hostOverride - QLabel * hostOverrideLabel; - QLineEdit * hostOverrideLineEdit; - - //webIRCPass - QLabel * webIRCPassLabel; - QLineEdit * webIRCPassLineEdit; - - //address - QLabel * addressLabel; - QLineEdit * addressLineEdit; - - //gzip - QCheckBox * gzipCheckBox; - - //isUniqueLocal - QCheckBox * isUniqueLocalCheckBox; - - //sigType - QLabel * sigTypeLabel; - QComboBox * sigTypeComboBox; - -protected slots: - virtual void setGroupBoxTitle(const QString & title); - -private: - void retranslateServerTunnelForm(ServerTunnelPane& /*ui*/) { - typeLabel->setText(QApplication::translate("srvTunForm", "Server tunnel type:", 0)); - hostLabel->setText(QApplication::translate("srvTunForm", "Host:", 0)); - portLabel->setText(QApplication::translate("srvTunForm", "Port:", 0)); - keysLabel->setText(QApplication::translate("srvTunForm", "Keys:", 0)); - inPortLabel->setText(QApplication::translate("srvTunForm", "InPort:", 0)); - accessListLabel->setText(QApplication::translate("srvTunForm", "Access list:", 0)); - hostOverrideLabel->setText(QApplication::translate("srvTunForm", "Host override:", 0)); - webIRCPassLabel->setText(QApplication::translate("srvTunForm", "WebIRC password:", 0)); - addressLabel->setText(QApplication::translate("srvTunForm", "Address:", 0)); - - gzipCheckBox->setText(QApplication::translate("srvTunForm", "GZip", 0)); - isUniqueLocalCheckBox->setText(QApplication::translate("srvTunForm", "Is unique local", 0)); - - sigTypeLabel->setText(QApplication::translate("cltTunForm", "Signature type:", 0)); - } - -protected: - virtual bool applyDataFromUIToTunnelConfig() { - QString cannotSaveSettings = QApplication::tr("Cannot save settings."); - bool ok=TunnelPane::applyDataFromUIToTunnelConfig(); - if(!ok)return false; - ServerTunnelConfig* stc=tunnelConfig->asServerTunnelConfig(); - assert(stc!=nullptr); - stc->sethost(hostLineEdit->text().toStdString()); - - auto portStr=portLineEdit->text(); - int portInt=portStr.toInt(&ok); - if(!ok){ - highlightWrongInput(QApplication::tr("Bad port, must be int.")+" "+cannotSaveSettings,portLineEdit); - return false; - } - stc->setport(portInt); - - stc->setkeys(keysLineEdit->text().toStdString()); - - auto str=inPortLineEdit->text(); - int inPortInt=str.toInt(&ok); - if(!ok){ - highlightWrongInput(QApplication::tr("Bad inPort, must be int.")+" "+cannotSaveSettings,inPortLineEdit); - return false; - } - stc->setinPort(inPortInt); - - stc->setaccessList(accessListLineEdit->text().toStdString()); - - stc->sethostOverride(hostOverrideLineEdit->text().toStdString()); - - stc->setwebircpass(webIRCPassLineEdit->text().toStdString()); - - stc->setaddress(addressLineEdit->text().toStdString()); - - stc->setgzip(gzipCheckBox->isChecked()); - - stc->setisUniqueLocal(isUniqueLocalCheckBox->isChecked()); - - stc->setsigType(readSigTypeComboboxUI(sigTypeComboBox)); - return true; - } -}; - -#endif // SERVERTUNNELPANE_H diff --git a/qt/i2pd_qt/SignatureTypeComboboxFactory.cpp b/qt/i2pd_qt/SignatureTypeComboboxFactory.cpp deleted file mode 100644 index 9313741a..00000000 --- a/qt/i2pd_qt/SignatureTypeComboboxFactory.cpp +++ /dev/null @@ -1,2 +0,0 @@ -#include "SignatureTypeComboboxFactory.h" - diff --git a/qt/i2pd_qt/SignatureTypeComboboxFactory.h b/qt/i2pd_qt/SignatureTypeComboboxFactory.h deleted file mode 100644 index f7cac658..00000000 --- a/qt/i2pd_qt/SignatureTypeComboboxFactory.h +++ /dev/null @@ -1,86 +0,0 @@ -#ifndef SIGNATURETYPECOMBOBOXFACTORY_H -#define SIGNATURETYPECOMBOBOXFACTORY_H - -#include -#include -#include -#include "Identity.h" - -class SignatureTypeComboBoxFactory -{ - static const QVariant createUserData(const uint16_t sigType) { - return QVariant::fromValue((uint)sigType); - } - - static void addItem(QComboBox* signatureTypeCombobox, QString text, const uint16_t sigType) { - const QVariant userData = createUserData(sigType); - signatureTypeCombobox->addItem(text, userData); - } - -public: - static uint16_t getSigType(const QVariant& var) { - return (uint16_t)var.toInt(); - } - - static void fillComboBox(QComboBox* signatureTypeCombobox, uint16_t selectedSigType) { - /* - https://geti2p.net/spec/common-structures#certificate - все коды перечислены - это таблица "The defined Signing Public Key types are:" ? - да - - see also: Identity.h line 55 - */ - int index=0; - bool foundSelected=false; - - using namespace i2p::data; - - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "DSA_SHA1", 0), SIGNING_KEY_TYPE_DSA_SHA1); //0 - if(selectedSigType==SIGNING_KEY_TYPE_DSA_SHA1){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "ECDSA_SHA256_P256", 0), SIGNING_KEY_TYPE_ECDSA_SHA256_P256); //1 - if(selectedSigType==SIGNING_KEY_TYPE_ECDSA_SHA256_P256){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "ECDSA_SHA384_P384", 0), SIGNING_KEY_TYPE_ECDSA_SHA384_P384); //2 - if(selectedSigType==SIGNING_KEY_TYPE_ECDSA_SHA384_P384){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "ECDSA_SHA512_P521", 0), SIGNING_KEY_TYPE_ECDSA_SHA512_P521); //3 - if(selectedSigType==SIGNING_KEY_TYPE_ECDSA_SHA512_P521){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "RSA_SHA256_2048", 0), SIGNING_KEY_TYPE_RSA_SHA256_2048); //4 - if(selectedSigType==SIGNING_KEY_TYPE_RSA_SHA256_2048){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "RSA_SHA384_3072", 0), SIGNING_KEY_TYPE_RSA_SHA384_3072); //5 - if(selectedSigType==SIGNING_KEY_TYPE_RSA_SHA384_3072){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "RSA_SHA512_4096", 0), SIGNING_KEY_TYPE_RSA_SHA512_4096); //6 - if(selectedSigType==SIGNING_KEY_TYPE_RSA_SHA512_4096){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "EDDSA_SHA512_ED25519", 0), SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519); //7 - if(selectedSigType==SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "EDDSA_SHA512_ED25519PH", 0), SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph); //8 - if(selectedSigType==SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - // the following signature type should never appear in netid=2 - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256", 0), SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256); //9 - if(selectedSigType==SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - addItem(signatureTypeCombobox, QApplication::translate("signatureTypeCombobox", "GOSTR3410_TC26_A_512_GOSTR3411_512", 0), SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512); //10 - if(selectedSigType==SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512){signatureTypeCombobox->setCurrentIndex(index);foundSelected=true;} - ++index; - if(!foundSelected){ - addItem(signatureTypeCombobox, QString::number(selectedSigType), selectedSigType); //unknown sigtype - signatureTypeCombobox->setCurrentIndex(index); - } - } - - static QComboBox* createSignatureTypeComboBox(QWidget* parent, uint16_t selectedSigType) { - QComboBox* signatureTypeCombobox = new QComboBox(parent); - fillComboBox(signatureTypeCombobox, selectedSigType); - return signatureTypeCombobox; - } -}; - -#endif // SIGNATURETYPECOMBOBOXFACTORY_H diff --git a/qt/i2pd_qt/TunnelConfig.cpp b/qt/i2pd_qt/TunnelConfig.cpp deleted file mode 100644 index 8ed72930..00000000 --- a/qt/i2pd_qt/TunnelConfig.cpp +++ /dev/null @@ -1,53 +0,0 @@ -#include "TunnelConfig.h" - -void TunnelConfig::saveHeaderToStringStream(std::stringstream& out) { - out << "[" << name << "]\n" - << "type=" << type.toStdString() << "\n"; -} - -void TunnelConfig::saveI2CPParametersToStringStream(std::stringstream& out) { - if (i2cpParameters.getInbound_length().toUShort() != i2p::client::DEFAULT_INBOUND_TUNNEL_LENGTH) - out << i2p::client::I2CP_PARAM_INBOUND_TUNNEL_LENGTH << "=" - << i2cpParameters.getInbound_length().toStdString() << "\n"; - if (i2cpParameters.getOutbound_length().toUShort() != i2p::client::DEFAULT_OUTBOUND_TUNNEL_LENGTH) - out << i2p::client::I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH << "=" - << i2cpParameters.getOutbound_length().toStdString() << "\n"; - if (i2cpParameters.getInbound_quantity().toUShort() != i2p::client::DEFAULT_INBOUND_TUNNELS_QUANTITY) - out << i2p::client::I2CP_PARAM_INBOUND_TUNNELS_QUANTITY << "=" - << i2cpParameters.getInbound_quantity().toStdString() << "\n"; - if (i2cpParameters.getOutbound_quantity().toUShort() != i2p::client::DEFAULT_OUTBOUND_TUNNELS_QUANTITY) - out << i2p::client::I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY << "=" - << i2cpParameters.getOutbound_quantity().toStdString() << "\n"; - if (i2cpParameters.getCrypto_tagsToSend().toUShort() != i2p::client::DEFAULT_TAGS_TO_SEND) - out << i2p::client::I2CP_PARAM_TAGS_TO_SEND << "=" - << i2cpParameters.getCrypto_tagsToSend().toStdString() << "\n"; - if (!i2cpParameters.getExplicitPeers().isEmpty()) //todo #947 - out << i2p::client::I2CP_PARAM_EXPLICIT_PEERS << "=" - << i2cpParameters.getExplicitPeers().toStdString() << "\n"; - out << "\n"; -} - -void ClientTunnelConfig::saveToStringStream(std::stringstream& out) { - out << "address=" << address << "\n" - << "port=" << port << "\n" - << "destination=" << dest << "\n" - << "destinationport=" << destinationPort << "\n" - << "signaturetype=" << sigType << "\n"; - if(!keys.empty()) out << "keys=" << keys << "\n"; -} - - -void ServerTunnelConfig::saveToStringStream(std::stringstream& out) { - out << "host=" << host << "\n" - << "port=" << port << "\n" - << "signaturetype=" << sigType << "\n" - << "inport=" << inPort << "\n" - << "accesslist=" << accessList << "\n" - << "gzip=" << (gzip?"true":"false") << "\n" - << "enableuniquelocal=" << (isUniqueLocal?"true":"false") << "\n" - << "address=" << address << "\n" - << "hostoverride=" << hostOverride << "\n" - << "webircpassword=" << webircpass << "\n"; - if(!keys.empty()) out << "keys=" << keys << "\n"; -} - diff --git a/qt/i2pd_qt/TunnelConfig.h b/qt/i2pd_qt/TunnelConfig.h deleted file mode 100644 index 58a1fa0b..00000000 --- a/qt/i2pd_qt/TunnelConfig.h +++ /dev/null @@ -1,226 +0,0 @@ -#ifndef TUNNELCONFIG_H -#define TUNNELCONFIG_H - -#include "QString" -#include - -#include "../../libi2pd_client/ClientContext.h" -#include "../../libi2pd/Destination.h" -#include "TunnelsPageUpdateListener.h" - - -class I2CPParameters{ - QString inbound_length;//number of hops of an inbound tunnel. 3 by default; lower value is faster but dangerous - QString outbound_length;//number of hops of an outbound tunnel. 3 by default; lower value is faster but dangerous - QString inbound_quantity; //number of inbound tunnels. 5 by default - QString outbound_quantity; //number of outbound tunnels. 5 by default - QString crypto_tagsToSend; //number of ElGamal/AES tags to send. 40 by default; too low value may cause problems with tunnel building - QString explicitPeers; //list of comma-separated b64 addresses of peers to use, default: unset -public: - I2CPParameters(): inbound_length(), - outbound_length(), - inbound_quantity(), - outbound_quantity(), - crypto_tagsToSend(), - explicitPeers() {} - const QString& getInbound_length(){return inbound_length;} - const QString& getOutbound_length(){return outbound_length;} - const QString& getInbound_quantity(){return inbound_quantity;} - const QString& getOutbound_quantity(){return outbound_quantity;} - const QString& getCrypto_tagsToSend(){return crypto_tagsToSend;} - const QString& getExplicitPeers(){return explicitPeers;} - void setInbound_length(QString inbound_length_){inbound_length=inbound_length_;} - void setOutbound_length(QString outbound_length_){outbound_length=outbound_length_;} - void setInbound_quantity(QString inbound_quantity_){inbound_quantity=inbound_quantity_;} - void setOutbound_quantity(QString outbound_quantity_){outbound_quantity=outbound_quantity_;} - void setCrypto_tagsToSend(QString crypto_tagsToSend_){crypto_tagsToSend=crypto_tagsToSend_;} - void setExplicitPeers(QString explicitPeers_){explicitPeers=explicitPeers_;} -}; - - -class ClientTunnelConfig; -class ServerTunnelConfig; -class TunnelConfig { - /* - const char I2P_TUNNELS_SECTION_TYPE_CLIENT[] = "client"; - const char I2P_TUNNELS_SECTION_TYPE_SERVER[] = "server"; - const char I2P_TUNNELS_SECTION_TYPE_HTTP[] = "http"; - const char I2P_TUNNELS_SECTION_TYPE_IRC[] = "irc"; - const char I2P_TUNNELS_SECTION_TYPE_UDPCLIENT[] = "udpclient"; - const char I2P_TUNNELS_SECTION_TYPE_UDPSERVER[] = "udpserver"; - const char I2P_TUNNELS_SECTION_TYPE_SOCKS[] = "socks"; - const char I2P_TUNNELS_SECTION_TYPE_WEBSOCKS[] = "websocks"; - const char I2P_TUNNELS_SECTION_TYPE_HTTPPROXY[] = "httpproxy"; - */ - QString type; - std::string name; -public: - TunnelConfig(std::string name_, QString& type_, I2CPParameters& i2cpParameters_): - type(type_), name(name_), i2cpParameters(i2cpParameters_) {} - virtual ~TunnelConfig(){} - const QString& getType(){return type;} - const std::string& getName(){return name;} - void setType(const QString& type_){type=type_;} - void setName(const std::string& name_){name=name_;} - I2CPParameters& getI2cpParameters(){return i2cpParameters;} - void saveHeaderToStringStream(std::stringstream& out); - void saveI2CPParametersToStringStream(std::stringstream& out); - virtual void saveToStringStream(std::stringstream& out)=0; - virtual ClientTunnelConfig* asClientTunnelConfig()=0; - virtual ServerTunnelConfig* asServerTunnelConfig()=0; - -private: - I2CPParameters i2cpParameters; -}; - -/* -# mandatory parameters: - std::string dest; - if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) - dest = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION); - int port = section.second.get (I2P_CLIENT_TUNNEL_PORT); -# optional parameters (may be omitted) - std::string keys = section.second.get (I2P_CLIENT_TUNNEL_KEYS, ""); - std::string address = section.second.get (I2P_CLIENT_TUNNEL_ADDRESS, "127.0.0.1"); - int destinationPort = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION_PORT, 0); - i2p::data::SigningKeyType sigType = section.second.get (I2P_CLIENT_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256); -# * keys -- our identity, if unset, will be generated on every startup, -# if set and file missing, keys will be generated and placed to this file -# * address -- local interface to bind -# * signaturetype -- signature type for new destination. 0 (DSA/SHA1), 1 (EcDSA/SHA256) or 7 (EdDSA/SHA512) -[somelabel] -type = client -address = 127.0.0.1 -port = 6668 -destination = irc.postman.i2p -keys = irc-keys.dat -*/ -class ClientTunnelConfig : public TunnelConfig { - std::string dest; - int port; - std::string keys; - std::string address; - int destinationPort; - i2p::data::SigningKeyType sigType; -public: - ClientTunnelConfig(std::string name_, QString type_, I2CPParameters& i2cpParameters_, - std::string dest_, - int port_, - std::string keys_, - std::string address_, - int destinationPort_, - i2p::data::SigningKeyType sigType_): TunnelConfig(name_, type_, i2cpParameters_), - dest(dest_), - port(port_), - keys(keys_), - address(address_), - destinationPort(destinationPort_), - sigType(sigType_){} - std::string& getdest(){return dest;} - int getport(){return port;} - std::string & getkeys(){return keys;} - std::string & getaddress(){return address;} - int getdestinationPort(){return destinationPort;} - i2p::data::SigningKeyType getsigType(){return sigType;} - void setdest(const std::string& dest_){dest=dest_;} - void setport(int port_){port=port_;} - void setkeys(const std::string & keys_){keys=keys_;} - void setaddress(const std::string & address_){address=address_;} - void setdestinationPort(int destinationPort_){destinationPort=destinationPort_;} - void setsigType(i2p::data::SigningKeyType sigType_){sigType=sigType_;} - virtual void saveToStringStream(std::stringstream& out); - virtual ClientTunnelConfig* asClientTunnelConfig(){return this;} - virtual ServerTunnelConfig* asServerTunnelConfig(){return nullptr;} -}; - -/* -# mandatory parameters: -# * host -- ip address of our service -# * port -- port of our service -# * keys -- file with LeaseSet of address in i2p - std::string host = section.second.get (I2P_SERVER_TUNNEL_HOST); - int port = section.second.get (I2P_SERVER_TUNNEL_PORT); - std::string keys = section.second.get (I2P_SERVER_TUNNEL_KEYS); -# optional parameters (may be omitted) - int inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, 0); - std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, ""); - std::string hostOverride = section.second.get (I2P_SERVER_TUNNEL_HOST_OVERRIDE, ""); - std::string webircpass = section.second.get (I2P_SERVER_TUNNEL_WEBIRC_PASSWORD, ""); - bool gzip = section.second.get (I2P_SERVER_TUNNEL_GZIP, true); - i2p::data::SigningKeyType sigType = section.second.get (I2P_SERVER_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256); - std::string address = section.second.get (I2P_SERVER_TUNNEL_ADDRESS, "127.0.0.1"); - bool isUniqueLocal = section.second.get(I2P_SERVER_TUNNEL_ENABLE_UNIQUE_LOCAL, true); -# * inport -- optional, i2p service port, if unset - the same as 'port' -# * accesslist -- comma-separated list of i2p addresses, allowed to connect -# every address is b32 without '.b32.i2p' part -[somelabel] -type = server -host = 127.0.0.1 -port = 6667 -keys = irc.dat -*/ -class ServerTunnelConfig : public TunnelConfig { - std::string host; - int port; - std::string keys; - int inPort; - std::string accessList; - std::string hostOverride; - std::string webircpass; - bool gzip; - i2p::data::SigningKeyType sigType; - std::string address; - bool isUniqueLocal; -public: - ServerTunnelConfig(std::string name_, QString type_, I2CPParameters& i2cpParameters_, - std::string host_, - int port_, - std::string keys_, - int inPort_, - std::string accessList_, - std::string hostOverride_, - std::string webircpass_, - bool gzip_, - i2p::data::SigningKeyType sigType_, - std::string address_, - bool isUniqueLocal_): TunnelConfig(name_, type_, i2cpParameters_), - host(host_), - port(port_), - keys(keys_), - inPort(inPort_), - accessList(accessList_), - hostOverride(hostOverride_), - webircpass(webircpass_), - gzip(gzip_), - sigType(sigType_), - address(address_), - isUniqueLocal(isUniqueLocal_) {} - std::string& gethost(){return host;} - int getport(){return port;} - std::string& getkeys(){return keys;} - int getinPort(){return inPort;} - std::string& getaccessList(){return accessList;} - std::string& gethostOverride(){return hostOverride;} - std::string& getwebircpass(){return webircpass;} - bool getgzip(){return gzip;} - i2p::data::SigningKeyType getsigType(){return sigType;} - std::string& getaddress(){return address;} - bool getisUniqueLocal(){return isUniqueLocal;} - void sethost(const std::string& host_){host=host_;} - void setport(int port_){port=port_;} - void setkeys(const std::string& keys_){keys=keys_;} - void setinPort(int inPort_){inPort=inPort_;} - void setaccessList(const std::string& accessList_){accessList=accessList_;} - void sethostOverride(const std::string& hostOverride_){hostOverride=hostOverride_;} - void setwebircpass(const std::string& webircpass_){webircpass=webircpass_;} - void setgzip(bool gzip_){gzip=gzip_;} - void setsigType(i2p::data::SigningKeyType sigType_){sigType=sigType_;} - void setaddress(const std::string& address_){address=address_;} - void setisUniqueLocal(bool isUniqueLocal_){isUniqueLocal=isUniqueLocal_;} - virtual void saveToStringStream(std::stringstream& out); - virtual ClientTunnelConfig* asClientTunnelConfig(){return nullptr;} - virtual ServerTunnelConfig* asServerTunnelConfig(){return this;} -}; - - -#endif // TUNNELCONFIG_H diff --git a/qt/i2pd_qt/TunnelPane.cpp b/qt/i2pd_qt/TunnelPane.cpp deleted file mode 100644 index fb840276..00000000 --- a/qt/i2pd_qt/TunnelPane.cpp +++ /dev/null @@ -1,249 +0,0 @@ -#include "TunnelPane.h" - -#include "QMessageBox" -#include "mainwindow.h" -#include "ui_mainwindow.h" - -TunnelPane::TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunnelConfig_, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow_): - QObject(), - mainWindow(mainWindow_), - wrongInputPane(wrongInputPane_), - wrongInputLabel(wrongInputLabel_), - tunnelConfig(tunnelConfig_), - tunnelsPageUpdateListener(tunnelsPageUpdateListener_), - gridLayoutWidget_2(nullptr) {} - -void TunnelPane::setupTunnelPane( - TunnelConfig* tunnelConfig, - QGroupBox *tunnelGroupBox, - QWidget* gridLayoutWidget_2, QComboBox * tunnelTypeComboBox, - QWidget *tunnelsFormGridLayoutWidget, int tunnelsRow, int height, int h) { - tunnelGroupBox->setGeometry(0, tunnelsFormGridLayoutWidget->height(), gridLayoutWidget_2->width(), h); - tunnelsFormGridLayoutWidget->resize(527, tunnelsFormGridLayoutWidget->height()+h); - - QObject::connect(tunnelTypeComboBox, SIGNAL(currentIndexChanged(int)), - this, SLOT(updated())); - - - this->tunnelGroupBox=tunnelGroupBox; - - gridLayoutWidget_2->setObjectName(QStringLiteral("gridLayoutWidget_2")); - this->gridLayoutWidget_2=gridLayoutWidget_2; - tunnelGridLayout = new QVBoxLayout(gridLayoutWidget_2); - tunnelGridLayout->setObjectName(QStringLiteral("tunnelGridLayout")); - tunnelGridLayout->setContentsMargins(5, 5, 5, 5); - tunnelGridLayout->setSpacing(5); - - //header - QHBoxLayout *headerHorizontalLayout = new QHBoxLayout(); - headerHorizontalLayout->setObjectName(QStringLiteral("headerHorizontalLayout")); - - nameLabel = new QLabel(gridLayoutWidget_2); - nameLabel->setObjectName(QStringLiteral("nameLabel")); - headerHorizontalLayout->addWidget(nameLabel); - nameLineEdit = new QLineEdit(gridLayoutWidget_2); - nameLineEdit->setObjectName(QStringLiteral("nameLineEdit")); - const QString& tunnelName=tunnelConfig->getName().c_str(); - nameLineEdit->setText(tunnelName); - setGroupBoxTitle(tunnelName); - - QObject::connect(nameLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(setGroupBoxTitle(const QString &))); - QObject::connect(nameLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - - headerHorizontalLayout->addWidget(nameLineEdit); - headerHorizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - headerHorizontalLayout->addItem(headerHorizontalSpacer); - deletePushButton = new QPushButton(gridLayoutWidget_2); - deletePushButton->setObjectName(QStringLiteral("deletePushButton")); - QObject::connect(deletePushButton, SIGNAL(released()), - this, SLOT(deleteButtonReleased()));//MainWindow::DeleteTunnelNamed(std::string name) { - headerHorizontalLayout->addWidget(deletePushButton); - tunnelGridLayout->addLayout(headerHorizontalLayout); - - //type - { - const QString& type = tunnelConfig->getType(); - QHBoxLayout * horizontalLayout_ = new QHBoxLayout(); - horizontalLayout_->setObjectName(QStringLiteral("horizontalLayout_")); - typeLabel = new QLabel(gridLayoutWidget_2); - typeLabel->setObjectName(QStringLiteral("typeLabel")); - horizontalLayout_->addWidget(typeLabel); - horizontalLayout_->addWidget(tunnelTypeComboBox); - QPushButton * lockButton1 = new QPushButton(gridLayoutWidget_2); - horizontalLayout_->addWidget(lockButton1); - widgetlocks.add(new widgetlock(tunnelTypeComboBox, lockButton1)); - this->tunnelTypeComboBox=tunnelTypeComboBox; - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_); - } - - retranslateTunnelForm(*this); -} - -void TunnelPane::appendControlsForI2CPParameters(I2CPParameters& i2cpParameters, int& gridIndex) { - { - //number of hops of an inbound tunnel - const QString& inbound_length=i2cpParameters.getInbound_length(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - inbound_lengthLabel = new QLabel(gridLayoutWidget_2); - inbound_lengthLabel->setObjectName(QStringLiteral("inbound_lengthLabel")); - horizontalLayout_2->addWidget(inbound_lengthLabel); - inbound_lengthLineEdit = new QLineEdit(gridLayoutWidget_2); - inbound_lengthLineEdit->setObjectName(QStringLiteral("inbound_lengthLineEdit")); - inbound_lengthLineEdit->setText(inbound_length); - inbound_lengthLineEdit->setMaximumWidth(80); - QObject::connect(inbound_lengthLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(inbound_lengthLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - //number of hops of an outbound tunnel - const QString& outbound_length=i2cpParameters.getOutbound_length(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - outbound_lengthLabel = new QLabel(gridLayoutWidget_2); - outbound_lengthLabel->setObjectName(QStringLiteral("outbound_lengthLabel")); - horizontalLayout_2->addWidget(outbound_lengthLabel); - outbound_lengthLineEdit = new QLineEdit(gridLayoutWidget_2); - outbound_lengthLineEdit->setObjectName(QStringLiteral("outbound_lengthLineEdit")); - outbound_lengthLineEdit->setText(outbound_length); - outbound_lengthLineEdit->setMaximumWidth(80); - QObject::connect(outbound_lengthLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(outbound_lengthLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - //number of inbound tunnels - const QString& inbound_quantity=i2cpParameters.getInbound_quantity(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - inbound_quantityLabel = new QLabel(gridLayoutWidget_2); - inbound_quantityLabel->setObjectName(QStringLiteral("inbound_quantityLabel")); - horizontalLayout_2->addWidget(inbound_quantityLabel); - inbound_quantityLineEdit = new QLineEdit(gridLayoutWidget_2); - inbound_quantityLineEdit->setObjectName(QStringLiteral("inbound_quantityLineEdit")); - inbound_quantityLineEdit->setText(inbound_quantity); - inbound_quantityLineEdit->setMaximumWidth(80); - QObject::connect(inbound_quantityLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(inbound_quantityLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - //number of outbound tunnels - const QString& outbound_quantity=i2cpParameters.getOutbound_quantity(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - outbound_quantityLabel = new QLabel(gridLayoutWidget_2); - outbound_quantityLabel->setObjectName(QStringLiteral("outbound_quantityLabel")); - horizontalLayout_2->addWidget(outbound_quantityLabel); - outbound_quantityLineEdit = new QLineEdit(gridLayoutWidget_2); - outbound_quantityLineEdit->setObjectName(QStringLiteral("outbound_quantityLineEdit")); - outbound_quantityLineEdit->setText(outbound_quantity); - outbound_quantityLineEdit->setMaximumWidth(80); - QObject::connect(outbound_quantityLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(outbound_quantityLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - { - //number of ElGamal/AES tags to send - const QString& crypto_tagsToSend=i2cpParameters.getCrypto_tagsToSend(); - QHBoxLayout *horizontalLayout_2 = new QHBoxLayout(); - horizontalLayout_2->setObjectName(QStringLiteral("horizontalLayout_2")); - crypto_tagsToSendLabel = new QLabel(gridLayoutWidget_2); - crypto_tagsToSendLabel->setObjectName(QStringLiteral("crypto_tagsToSendLabel")); - horizontalLayout_2->addWidget(crypto_tagsToSendLabel); - crypto_tagsToSendLineEdit = new QLineEdit(gridLayoutWidget_2); - crypto_tagsToSendLineEdit->setObjectName(QStringLiteral("crypto_tagsToSendLineEdit")); - crypto_tagsToSendLineEdit->setText(crypto_tagsToSend); - crypto_tagsToSendLineEdit->setMaximumWidth(80); - QObject::connect(crypto_tagsToSendLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(updated())); - horizontalLayout_2->addWidget(crypto_tagsToSendLineEdit); - QSpacerItem * horizontalSpacer = new QSpacerItem(40, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); - horizontalLayout_2->addItem(horizontalSpacer); - tunnelGridLayout->addLayout(horizontalLayout_2); - } - - retranslateI2CPParameters(); -} - -void TunnelPane::updated() { - std::string oldName=tunnelConfig->getName(); - //validate and show red if invalid - hideWrongInputLabel(); - if(!mainWindow->applyTunnelsUiToConfigs())return; - tunnelsPageUpdateListener->updated(oldName, tunnelConfig); -} - -void TunnelPane::deleteButtonReleased() { - QMessageBox msgBox; - msgBox.setText(QApplication::tr("Are you sure to delete this tunnel?")); - msgBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Cancel); - msgBox.setDefaultButton(QMessageBox::Cancel); - int ret = msgBox.exec(); - switch (ret) { - case QMessageBox::Ok: - // OK was clicked - hideWrongInputLabel(); - tunnelsPageUpdateListener->needsDeleting(tunnelConfig->getName()); - break; - case QMessageBox::Cancel: - // Cancel was clicked - return; - } -} - -/* -const char I2P_TUNNELS_SECTION_TYPE_CLIENT[] = "client"; -const char I2P_TUNNELS_SECTION_TYPE_SERVER[] = "server"; -const char I2P_TUNNELS_SECTION_TYPE_HTTP[] = "http"; -const char I2P_TUNNELS_SECTION_TYPE_IRC[] = "irc"; -const char I2P_TUNNELS_SECTION_TYPE_UDPCLIENT[] = "udpclient"; -const char I2P_TUNNELS_SECTION_TYPE_UDPSERVER[] = "udpserver"; -const char I2P_TUNNELS_SECTION_TYPE_SOCKS[] = "socks"; -const char I2P_TUNNELS_SECTION_TYPE_WEBSOCKS[] = "websocks"; -const char I2P_TUNNELS_SECTION_TYPE_HTTPPROXY[] = "httpproxy"; -*/ -QString TunnelPane::readTunnelTypeComboboxData() { - return tunnelTypeComboBox->currentData().toString(); -} - -i2p::data::SigningKeyType TunnelPane::readSigTypeComboboxUI(QComboBox* sigTypeComboBox) { - return (i2p::data::SigningKeyType) sigTypeComboBox->currentData().toInt(); -} - -void TunnelPane::deleteTunnelForm() { - widgetlocks.deleteListeners(); -} - -void TunnelPane::highlightWrongInput(QString warningText, QWidget* controlWithWrongInput) { - wrongInputPane->setVisible(true); - wrongInputLabel->setText(warningText); - mainWindow->adjustSizesAccordingToWrongLabel(); - if(controlWithWrongInput){ - mainWindow->ui->tunnelsScrollArea->ensureWidgetVisible(controlWithWrongInput); - controlWithWrongInput->setFocus(); - } - mainWindow->showTunnelsPage(); -} - -void TunnelPane::hideWrongInputLabel() const { - wrongInputPane->setVisible(false); - mainWindow->adjustSizesAccordingToWrongLabel(); -} diff --git a/qt/i2pd_qt/TunnelPane.h b/qt/i2pd_qt/TunnelPane.h deleted file mode 100644 index a7012810..00000000 --- a/qt/i2pd_qt/TunnelPane.h +++ /dev/null @@ -1,137 +0,0 @@ -#ifndef TUNNELPANE_H -#define TUNNELPANE_H - -#include "QObject" -#include "QWidget" -#include "QComboBox" -#include "QGridLayout" -#include "QLabel" -#include "QPushButton" -#include "QApplication" -#include "QLineEdit" -#include "QGroupBox" -#include "QVBoxLayout" - -#include "TunnelConfig.h" - -#include -#include - -class ServerTunnelPane; -class ClientTunnelPane; - -class TunnelConfig; -class I2CPParameters; - -class MainWindow; - -class TunnelPane : public QObject { - - Q_OBJECT - -public: - TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow_); - virtual ~TunnelPane(){} - - void deleteTunnelForm(); - - void hideWrongInputLabel() const; - void highlightWrongInput(QString warningText, QWidget* controlWithWrongInput); - - virtual ServerTunnelPane* asServerTunnelPane()=0; - virtual ClientTunnelPane* asClientTunnelPane()=0; - -protected: - MainWindow* mainWindow; - QWidget * wrongInputPane; - QLabel* wrongInputLabel; - TunnelConfig* tunnelConfig; - widgetlockregistry widgetlocks; - TunnelsPageUpdateListener* tunnelsPageUpdateListener; - QVBoxLayout *tunnelGridLayout; - QGroupBox *tunnelGroupBox; - QWidget* gridLayoutWidget_2; - - //header - QLabel *nameLabel; - QLineEdit *nameLineEdit; -public: - QLineEdit * getNameLineEdit() { return nameLineEdit; } - -public slots: - void updated(); - void deleteButtonReleased(); - -protected: - QSpacerItem *headerHorizontalSpacer; - QPushButton *deletePushButton; - - //type - QComboBox *tunnelTypeComboBox; - QLabel *typeLabel; - - //i2cp - - QLabel * inbound_lengthLabel; - QLineEdit * inbound_lengthLineEdit; - - QLabel * outbound_lengthLabel; - QLineEdit * outbound_lengthLineEdit; - - QLabel * inbound_quantityLabel; - QLineEdit * inbound_quantityLineEdit; - - QLabel * outbound_quantityLabel; - QLineEdit * outbound_quantityLineEdit; - - QLabel * crypto_tagsToSendLabel; - QLineEdit * crypto_tagsToSendLineEdit; - - QString readTunnelTypeComboboxData(); - - //should be created by factory - i2p::data::SigningKeyType readSigTypeComboboxUI(QComboBox* sigTypeComboBox); - -public: - //returns false when invalid data at UI - virtual bool applyDataFromUIToTunnelConfig() { - tunnelConfig->setName(nameLineEdit->text().toStdString()); - tunnelConfig->setType(readTunnelTypeComboboxData()); - I2CPParameters& i2cpParams=tunnelConfig->getI2cpParameters(); - i2cpParams.setInbound_length(inbound_lengthLineEdit->text()); - i2cpParams.setInbound_quantity(inbound_quantityLineEdit->text()); - i2cpParams.setOutbound_length(outbound_lengthLineEdit->text()); - i2cpParams.setOutbound_quantity(outbound_quantityLineEdit->text()); - i2cpParams.setCrypto_tagsToSend(crypto_tagsToSendLineEdit->text()); - return true; - } -protected: - void setupTunnelPane( - TunnelConfig* tunnelConfig, - QGroupBox *tunnelGroupBox, - QWidget* gridLayoutWidget_2, QComboBox * tunnelTypeComboBox, - QWidget *tunnelsFormGridLayoutWidget, int tunnelsRow, int height, int h); - void appendControlsForI2CPParameters(I2CPParameters& i2cpParameters, int& gridIndex); -public: - int height() { - return gridLayoutWidget_2?gridLayoutWidget_2->height():0; - } - -protected slots: - virtual void setGroupBoxTitle(const QString & title)=0; -private: - void retranslateTunnelForm(TunnelPane& ui) { - ui.deletePushButton->setText(QApplication::translate("tunForm", "Delete Tunnel", 0)); - ui.nameLabel->setText(QApplication::translate("tunForm", "Tunnel name:", 0)); - } - - void retranslateI2CPParameters() { - inbound_lengthLabel->setText(QApplication::translate("tunForm", "Number of hops of an inbound tunnel:", 0));; - outbound_lengthLabel->setText(QApplication::translate("tunForm", "Number of hops of an outbound tunnel:", 0));; - inbound_quantityLabel->setText(QApplication::translate("tunForm", "Number of inbound tunnels:", 0));; - outbound_quantityLabel->setText(QApplication::translate("tunForm", "Number of outbound tunnels:", 0));; - crypto_tagsToSendLabel->setText(QApplication::translate("tunForm", "Number of ElGamal/AES tags to send:", 0));; - } -}; - -#endif // TUNNELPANE_H diff --git a/qt/i2pd_qt/TunnelsPageUpdateListener.h b/qt/i2pd_qt/TunnelsPageUpdateListener.h deleted file mode 100644 index 83b4e9fe..00000000 --- a/qt/i2pd_qt/TunnelsPageUpdateListener.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef TUNNELSPAGEUPDATELISTENER_H -#define TUNNELSPAGEUPDATELISTENER_H - -class TunnelConfig; - -class TunnelsPageUpdateListener { -public: - virtual void updated(std::string oldName, TunnelConfig* tunConf)=0; - virtual void needsDeleting(std::string oldName)=0; -}; - -#endif // TUNNELSPAGEUPDATELISTENER_H diff --git a/qt/i2pd_qt/data/icons/128x128/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/128x128/website.i2pd.i2pd.png deleted file mode 100644 index ee5400c4..00000000 Binary files a/qt/i2pd_qt/data/icons/128x128/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/16x16/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/16x16/website.i2pd.i2pd.png deleted file mode 100644 index bc020282..00000000 Binary files a/qt/i2pd_qt/data/icons/16x16/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/22x22/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/22x22/website.i2pd.i2pd.png deleted file mode 100644 index 5aed761e..00000000 Binary files a/qt/i2pd_qt/data/icons/22x22/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/24x24/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/24x24/website.i2pd.i2pd.png deleted file mode 100644 index 996e1296..00000000 Binary files a/qt/i2pd_qt/data/icons/24x24/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/256x256/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/256x256/website.i2pd.i2pd.png deleted file mode 100644 index 3ed9b518..00000000 Binary files a/qt/i2pd_qt/data/icons/256x256/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/32x32/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/32x32/website.i2pd.i2pd.png deleted file mode 100644 index 922846c6..00000000 Binary files a/qt/i2pd_qt/data/icons/32x32/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/48x48/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/48x48/website.i2pd.i2pd.png deleted file mode 100644 index 4b7c81ea..00000000 Binary files a/qt/i2pd_qt/data/icons/48x48/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/512x512/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/512x512/website.i2pd.i2pd.png deleted file mode 100644 index 6336627c..00000000 Binary files a/qt/i2pd_qt/data/icons/512x512/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/icons/64x64/website.i2pd.i2pd.png b/qt/i2pd_qt/data/icons/64x64/website.i2pd.i2pd.png deleted file mode 100644 index a291cab5..00000000 Binary files a/qt/i2pd_qt/data/icons/64x64/website.i2pd.i2pd.png and /dev/null differ diff --git a/qt/i2pd_qt/data/website.i2pd.i2pd.appdata.xml b/qt/i2pd_qt/data/website.i2pd.i2pd.appdata.xml deleted file mode 100644 index e9f35676..00000000 --- a/qt/i2pd_qt/data/website.i2pd.i2pd.appdata.xml +++ /dev/null @@ -1,46 +0,0 @@ - - - - website.i2pd.i2pd - website.i2pd.i2pd.desktop - CC0-1.0 - BSD-3-Clause - i2pd - Invisible Internet - -

i2pd (I2P Daemon) is a full-featured C++ implementation of I2P client.

-

I2P (Invisible Internet Protocol) is a universal anonymous network layer. - All communications over I2P are anonymous and end-to-end encrypted, participants - don't reveal their real IP addresses.

-

I2P allows people from all around the world to communicate and share information - without restrictions.

-

Features:

-
    -
  • Distributed anonymous networking framework
    • -
  • End-to-end encrypted communications
    • -
  • Small footprint, simple dependencies, fast performance
    • -
  • Rich set of APIs for developers of secure applications
    • -
- - - - https://i2pd.website/images/i2pd_qt.png - - - https://i2pd.website/ - https://github.com/PurpleI2P/i2pd/issues - https://i2pd.readthedocs.io/en/latest/ - supervillain@riseup.net - PurpleI2P Team - - - - - - - - - - - - diff --git a/qt/i2pd_qt/data/website.i2pd.i2pd.desktop b/qt/i2pd_qt/data/website.i2pd.i2pd.desktop deleted file mode 100644 index 33cb3214..00000000 --- a/qt/i2pd_qt/data/website.i2pd.i2pd.desktop +++ /dev/null @@ -1,11 +0,0 @@ -[Desktop Entry] -Categories=Network;P2P;Qt; -Exec=i2pd_qt -GenericName=Invisible Internet -Comment=A universal anonymous network layer -Icon=website.i2pd.i2pd -Name=i2pd -Terminal=false -Type=Application -StartupNotify=false -Keywords=i2p;i2pd;vpn;p2p; diff --git a/qt/i2pd_qt/generalsettingswidget.ui b/qt/i2pd_qt/generalsettingswidget.ui deleted file mode 100644 index a7f07e5d..00000000 --- a/qt/i2pd_qt/generalsettingswidget.ui +++ /dev/null @@ -1,2875 +0,0 @@ - - - GeneralSettingsContentsForm - - - - 0 - 0 - 679 - 3033 - - - - - 0 - 0 - - - - GeneralSettingsContentsForm - - - - - 0 - 0 - 679 - 3052 - - - - - QLayout::SetMinAndMaxSize - - - - - - 0 - 0 - - - - - 0 - 51 - - - - - 16777215 - 51 - - - - Configuration file: - - - - - 0 - 18 - 661 - 31 - - - - - QLayout::SetMaximumSize - - - - - - - - - 0 - 0 - - - - - 0 - 27 - - - - - 16777215 - 27 - - - - Browse… - - - - - - - - - - - - 0 - 0 - - - - - 0 - 51 - - - - - 16777215 - 51 - - - - Tunnels configuration file: - - - - - 0 - 18 - 661 - 31 - - - - - QLayout::SetMaximumSize - - - - - - - - - 0 - 0 - - - - - 0 - 27 - - - - - 16777215 - 27 - - - - Browse… - - - - - - - - - - - - 0 - 0 - - - - - 0 - 51 - - - - - 16777215 - 51 - - - - Pid file: - - - - - 0 - 18 - 661 - 31 - - - - - QLayout::SetMaximumSize - - - - - - - - - 0 - 0 - - - - - 0 - 27 - - - - - 16777215 - 27 - - - - Browse… - - - - - - - - - - - - 0 - 98 - - - - - 16777215 - 98 - - - - SAM interface - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 60 - - - - - 16777215 - 60 - - - - - 13 - - - - Windows-specific options - - - - - - - - 0 - 44 - - - - - 16777215 - 44 - - - - Cryptography - - - - - 0 - 20 - 661 - 22 - - - - Use ElGamal precomputed tables - - - - - - - - - 0 - 107 - - - - - 16777215 - 107 - - - - Logging - - - Qt::AlignJustify|Qt::AlignTop - - - - - -1 - 19 - 661 - 91 - - - - - QLayout::SetMinimumSize - - - - - QLayout::SetMaximumSize - - - - - Destination: - - - - - - - - - - Edit - - - - - - - Log file: - - - - - - - - - - Browse… - - - - - - - - - QLayout::SetMinimumSize - - - - - - 0 - 0 - - - - Log level: - - - - - - - - Error - - - - - Warn - - - - - Info - - - - - Debug - - - - - - - - Edit - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - - - 0 - 68 - - - - - 16777215 - 68 - - - - UPnP - - - - - 0 - 20 - 97 - 22 - - - - Enable - - - - - - 0 - 40 - 661 - 31 - - - - - - - Name i2pd appears in UPnP forwardings list: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 98 - - - - - 16777215 - 98 - - - - I2CP interface - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 98 - - - - - 16777215 - 98 - - - - BOB interface - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 60 - - - - - 16777215 - 60 - - - - - 13 - - - - General options - - - - - - - - 0 - 0 - - - - - 0 - 98 - - - - - 16777215 - 98 - - - - Router external address (for incoming connections) - - - Qt::AlignJustify|Qt::AlignTop - - - - - 0 - 20 - 661 - 81 - - - - - QLayout::SetMinAndMaxSize - - - - - QLayout::SetMinAndMaxSize - - - - - Host: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - QLayout::SetMinAndMaxSize - - - - - Port (leave 0 to auto-assign): - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - - - 0 - 78 - - - - - 16777215 - 78 - - - - Addressbook settings - - - - - 0 - 20 - 661 - 31 - - - - - - - Addressbook default subscription URL for initial setup: - - - - - - - - - - - - 0 - 50 - 661 - 31 - - - - - - - Addressbook subscriptions URLs, separated by comma: - - - - - - - - - - - - - - - 0 - 280 - - - - - 16777215 - 280 - - - - HTTP proxy - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 100 - 661 - 31 - - - - - - - Keys file: - - - - - - - - - - Browse… - - - - - - - - - 0 - 160 - 661 - 31 - - - - - - - Inbound tunnels length: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 190 - 661 - 31 - - - - - - - Inbound tunnels quantity: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 220 - 661 - 31 - - - - - - - Outbound tunnels length: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 250 - 661 - 31 - - - - - - - Outbound tunnels quantity: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 130 - 661 - 31 - - - - - - - Signature type: - - - - - - - - - - Edit - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 60 - - - - - 16777215 - 60 - - - - - 13 - - - - Various options - - - - - - - - 0 - 51 - - - - - 16777215 - 51 - - - - Data folder (for storage of i2pd data — RI, keys, peer profiles, …): - - - - - 0 - 20 - 661 - 31 - - - - - QLayout::SetMaximumSize - - - - - - - - Browse… - - - - - - - - - - - - 0 - 0 - - - - - 0 - 215 - - - - - 16777215 - 215 - - - - Router options - - - - - 0 - 20 - 661 - 188 - - - - - - - Enable communication through ipv6 - - - - - - - Router will not accept transit tunnels at startup - - - - - - - Router will be floodfill - - - - - - - - - Bandwidth limit (integer or a letter): - - - - - - - - - - KBps - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - Family (name of a family router belongs to): - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - QLayout::SetMaximumSize - - - - - NetID (network ID router belongs to. The main I2P ID is 2): - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - - - 0 - 108 - - - - - 16777215 - 108 - - - - Limits - - - - - 0 - 20 - 661 - 31 - - - - - - - Maximum number of transit tunnels: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 50 - 661 - 31 - - - - - - - Maximum number of open files (0 — use system limit): - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 80 - 661 - 31 - - - - - - - Maximum size of core file in Kb (0 — use system limit): - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 98 - - - - - 16777215 - 98 - - - - Reseeding - - - - - 0 - 20 - 661 - 22 - - - - Request SU3 signature verification - - - - - - 0 - 40 - 661 - 31 - - - - - - - SU3 file to reseed from: - - - - - - - - - - Browse… - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Reseed URLs, separated by comma: - - - - - - - - - - - - - - - 0 - 170 - - - - - 16777215 - 170 - - - - Trust options - - - - - 0 - 20 - 661 - 21 - - - - Enable explicit trust options - - - - - - 390 - 40 - 271 - 23 - - - - - - - 0 - 40 - 391 - 42 - - - - Make direct I2P connections only to -routers in specified Family: - - - - - - 0 - 82 - 661 - 42 - - - - Make direct I2P connections only to routers specified here. -Comma separated list of base64 identities: - - - - - - 0 - 124 - 661 - 23 - - - - - - - 0 - 147 - 661 - 21 - - - - Should we hide our router from other routers? - - - - - - - - - 0 - 60 - - - - - 16777215 - 60 - - - - - 13 - - - - Ports - - - - - - - - 0 - 22 - - - - - 16777215 - 22 - - - - Insomnia (prevent system from sleeping) - - - - - - - - 0 - 189 - - - - - 16777215 - 189 - - - - I2PControl interface - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 100 - 661 - 31 - - - - - - - Password: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 130 - 661 - 31 - - - - - - - Certificate file: - - - - - - - - - - Browse… - - - - - - - - - 0 - 160 - 661 - 31 - - - - - - - Key file: - - - - - - - - - - Browse… - - - - - - - - - - - - 0 - 0 - - - - - 0 - 105 - - - - - 16777215 - 105 - - - - Websockets server - - - - - 0 - 20 - 85 - 21 - - - - Enable - - - - - - 0 - 40 - 661 - 31 - - - - - - - Address to bind websocket server on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to bind websocket server on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 179 - - - - - 16777215 - 179 - - - - HTTP webconsole - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 100 - 321 - 22 - - - - Enable basic HTTP auth - - - - - - 60 - 120 - 601 - 31 - - - - - - - Username: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 60 - 150 - 601 - 31 - - - - - - - Password: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - 0 - 335 - - - - - 16777215 - 335 - - - - Socks proxy - - - - - 0 - 20 - 97 - 22 - - - - Enabled - - - - - - 0 - 40 - 661 - 31 - - - - - - - IP address to listen on: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 70 - 661 - 31 - - - - - - - Port to listen on: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 100 - 661 - 31 - - - - - - - Keys file: - - - - - - - - - - Browse… - - - - - - - - - 0 - 160 - 661 - 31 - - - - - - - Inbound tunnels length: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 190 - 661 - 31 - - - - - - - Inbound tunnels quantity: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 220 - 661 - 31 - - - - - - - Outbound tunnels length: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 250 - 661 - 31 - - - - - - - Outbound tunnels quantity: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 280 - 661 - 31 - - - - - - - Outproxy address: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 310 - 661 - 31 - - - - - - - Outproxy port: - - - - - - - - 80 - 16777215 - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - 0 - 130 - 661 - 31 - - - - - - - Signature type: - - - - - - - - - - Edit - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - - diff --git a/qt/i2pd_qt/i2pd.qrc b/qt/i2pd_qt/i2pd.qrc deleted file mode 100644 index 4e5523e9..00000000 --- a/qt/i2pd_qt/i2pd.qrc +++ /dev/null @@ -1,6 +0,0 @@ - - - resources/icons/mask.ico - resources/images/icon.png - - diff --git a/qt/i2pd_qt/i2pd.rc b/qt/i2pd_qt/i2pd.rc deleted file mode 100644 index bebdf1d6..00000000 --- a/qt/i2pd_qt/i2pd.rc +++ /dev/null @@ -1,32 +0,0 @@ -IDI_ICON1 ICON DISCARDABLE "resources/icons/mask.ico" - -#include // needed for VERSIONINFO -#include "../../libi2pd/version.h" - -VS_VERSION_INFO VERSIONINFO -FILEVERSION I2PD_VERSION_MAJOR,I2PD_VERSION_MINOR,I2PD_VERSION_MICRO,I2PD_VERSION_PATCH -PRODUCTVERSION I2P_VERSION_MAJOR,I2P_VERSION_MINOR,I2P_VERSION_MICRO,I2P_VERSION_PATCH -FILEOS VOS_NT_WINDOWS32 -FILETYPE VFT_APP -BEGIN - BLOCK "StringFileInfo" - BEGIN - BLOCK "040904E4" // U.S. English - multilingual (hex) - BEGIN - VALUE "CompanyName", "PurpleI2P" - VALUE "FileDescription", "I2Pd Qt" - VALUE "FileVersion", I2PD_VERSION - VALUE "InternalName", "i2pd-qt" - VALUE "LegalCopyright", "Copyright (C) 2013-2018, The PurpleI2P Project" - VALUE "LegalTrademarks1", "Distributed under the BSD 3-Clause software license, see the accompanying file COPYING or https://opensource.org/licenses/BSD-3-Clause." - VALUE "OriginalFilename", "i2pd_qt.exe" - VALUE "ProductName", "i2pd-qt" - VALUE "ProductVersion", I2P_VERSION - END - END - - BLOCK "VarFileInfo" - BEGIN - VALUE "Translation", 0x0, 1252 // language neutral - multilingual (decimal) - END -END diff --git a/qt/i2pd_qt/i2pd_qt.pro b/qt/i2pd_qt/i2pd_qt.pro deleted file mode 100644 index e24a3963..00000000 --- a/qt/i2pd_qt/i2pd_qt.pro +++ /dev/null @@ -1,245 +0,0 @@ -QT += core gui - -greaterThan(QT_MAJOR_VERSION, 4): QT += widgets - -TARGET = i2pd_qt -TEMPLATE = app -QMAKE_CXXFLAGS *= -std=c++11 -ggdb -DEFINES += USE_UPNP - -SOURCES += DaemonQT.cpp mainwindow.cpp \ - ../../libi2pd/api.cpp \ - ../../libi2pd/Base.cpp \ - ../../libi2pd/BloomFilter.cpp \ - ../../libi2pd/Config.cpp \ - ../../libi2pd/CPU.cpp \ - ../../libi2pd/Crypto.cpp \ - ../../libi2pd/CryptoKey.cpp \ - ../../libi2pd/Datagram.cpp \ - ../../libi2pd/Destination.cpp \ - ../../libi2pd/Event.cpp \ - ../../libi2pd/Family.cpp \ - ../../libi2pd/FS.cpp \ - ../../libi2pd/Garlic.cpp \ - ../../libi2pd/Gost.cpp \ - ../../libi2pd/Gzip.cpp \ - ../../libi2pd/HTTP.cpp \ - ../../libi2pd/I2NPProtocol.cpp \ - ../../libi2pd/I2PEndian.cpp \ - ../../libi2pd/Identity.cpp \ - ../../libi2pd/LeaseSet.cpp \ - ../../libi2pd/Log.cpp \ - ../../libi2pd/NetDb.cpp \ - ../../libi2pd/NetDbRequests.cpp \ - ../../libi2pd/NTCPSession.cpp \ - ../../libi2pd/Profiling.cpp \ - ../../libi2pd/Reseed.cpp \ - ../../libi2pd/RouterContext.cpp \ - ../../libi2pd/RouterInfo.cpp \ - ../../libi2pd/Signature.cpp \ - ../../libi2pd/SSU.cpp \ - ../../libi2pd/SSUData.cpp \ - ../../libi2pd/SSUSession.cpp \ - ../../libi2pd/Streaming.cpp \ - ../../libi2pd/Timestamp.cpp \ - ../../libi2pd/TransitTunnel.cpp \ - ../../libi2pd/Transports.cpp \ - ../../libi2pd/Tunnel.cpp \ - ../../libi2pd/TunnelEndpoint.cpp \ - ../../libi2pd/TunnelGateway.cpp \ - ../../libi2pd/TunnelPool.cpp \ - ../../libi2pd/util.cpp \ - ../../libi2pd/Ed25519.cpp \ - ../../libi2pd/Chacha20.cpp \ - ../../libi2pd/Poly1305.cpp \ - ../../libi2pd_client/AddressBook.cpp \ - ../../libi2pd_client/BOB.cpp \ - ../../libi2pd_client/ClientContext.cpp \ - ../../libi2pd_client/HTTPProxy.cpp \ - ../../libi2pd_client/I2CP.cpp \ - ../../libi2pd_client/I2PService.cpp \ - ../../libi2pd_client/I2PTunnel.cpp \ - ../../libi2pd_client/MatchedDestination.cpp \ - ../../libi2pd_client/SAM.cpp \ - ../../libi2pd_client/SOCKS.cpp \ - ../../libi2pd_client/Websocket.cpp \ - ../../libi2pd_client/WebSocks.cpp \ - ClientTunnelPane.cpp \ - MainWindowItems.cpp \ - ServerTunnelPane.cpp \ - SignatureTypeComboboxFactory.cpp \ - TunnelConfig.cpp \ - TunnelPane.cpp \ - ../../daemon/Daemon.cpp \ - ../../daemon/HTTPServer.cpp \ - ../../daemon/i2pd.cpp \ - ../../daemon/I2PControl.cpp \ - ../../daemon/UnixDaemon.cpp \ - ../../daemon/UPnP.cpp \ - textbrowsertweaked1.cpp \ - pagewithbackbutton.cpp \ - widgetlock.cpp \ - widgetlockregistry.cpp \ - logviewermanager.cpp \ - ../../libi2pd/NTCP2.cpp - -#qt creator does not handle this well -#SOURCES += $$files(../../libi2pd/*.cpp) -#SOURCES += $$files(../../libi2pd_client/*.cpp) -#SOURCES += $$files(../../daemon/*.cpp) -#SOURCES += $$files(./*.cpp) - -SOURCES -= ../../daemon/UnixDaemon.cpp - -HEADERS += DaemonQT.h mainwindow.h \ - ../../libi2pd/api.h \ - ../../libi2pd/Base.h \ - ../../libi2pd/BloomFilter.h \ - ../../libi2pd/Config.h \ - ../../libi2pd/Crypto.h \ - ../../libi2pd/CryptoKey.h \ - ../../libi2pd/Datagram.h \ - ../../libi2pd/Destination.h \ - ../../libi2pd/Event.h \ - ../../libi2pd/Family.h \ - ../../libi2pd/FS.h \ - ../../libi2pd/Garlic.h \ - ../../libi2pd/Gost.h \ - ../../libi2pd/Gzip.h \ - ../../libi2pd/HTTP.h \ - ../../libi2pd/I2NPProtocol.h \ - ../../libi2pd/I2PEndian.h \ - ../../libi2pd/Identity.h \ - ../../libi2pd/LeaseSet.h \ - ../../libi2pd/LittleBigEndian.h \ - ../../libi2pd/Log.h \ - ../../libi2pd/NetDb.hpp \ - ../../libi2pd/NetDbRequests.h \ - ../../libi2pd/NTCPSession.h \ - ../../libi2pd/Profiling.h \ - ../../libi2pd/Queue.h \ - ../../libi2pd/Reseed.h \ - ../../libi2pd/RouterContext.h \ - ../../libi2pd/RouterInfo.h \ - ../../libi2pd/Signature.h \ - ../../libi2pd/SSU.h \ - ../../libi2pd/SSUData.h \ - ../../libi2pd/SSUSession.h \ - ../../libi2pd/Streaming.h \ - ../../libi2pd/Tag.h \ - ../../libi2pd/Timestamp.h \ - ../../libi2pd/TransitTunnel.h \ - ../../libi2pd/Transports.h \ - ../../libi2pd/TransportSession.h \ - ../../libi2pd/Tunnel.h \ - ../../libi2pd/TunnelBase.h \ - ../../libi2pd/TunnelConfig.h \ - ../../libi2pd/TunnelEndpoint.h \ - ../../libi2pd/TunnelGateway.h \ - ../../libi2pd/TunnelPool.h \ - ../../libi2pd/util.h \ - ../../libi2pd/version.h \ - ../../libi2pd_client/AddressBook.h \ - ../../libi2pd_client/BOB.h \ - ../../libi2pd_client/ClientContext.h \ - ../../libi2pd_client/HTTPProxy.h \ - ../../libi2pd_client/I2CP.h \ - ../../libi2pd_client/I2PService.h \ - ../../libi2pd_client/I2PTunnel.h \ - ../../libi2pd_client/MatchedDestination.h \ - ../../libi2pd_client/SAM.h \ - ../../libi2pd_client/SOCKS.h \ - ../../libi2pd_client/Websocket.h \ - ../../libi2pd_client/WebSocks.h \ - ClientTunnelPane.h \ - MainWindowItems.h \ - ServerTunnelPane.h \ - SignatureTypeComboboxFactory.h \ - TunnelConfig.h \ - TunnelPane.h \ - TunnelsPageUpdateListener.h \ - ../../daemon/Daemon.h \ - ../../daemon/HTTPServer.h \ - ../../daemon/I2PControl.h \ - ../../daemon/UPnP.h \ - textbrowsertweaked1.h \ - pagewithbackbutton.h \ - widgetlock.h \ - widgetlockregistry.h \ - i2pd.rc \ - i2pd.rc \ - logviewermanager.h - -INCLUDEPATH += ../../libi2pd -INCLUDEPATH += ../../libi2pd_client -INCLUDEPATH += ../../daemon -INCLUDEPATH += . - -FORMS += mainwindow.ui \ - tunnelform.ui \ - statusbuttons.ui \ - routercommandswidget.ui \ - generalsettingswidget.ui - -LIBS += -lz - -macx { - message("using mac os x target") - BREWROOT=/usr/local - BOOSTROOT=$$BREWROOT/opt/boost - SSLROOT=$$BREWROOT/opt/libressl - UPNPROOT=$$BREWROOT/opt/miniupnpc - INCLUDEPATH += $$BOOSTROOT/include - INCLUDEPATH += $$SSLROOT/include - INCLUDEPATH += $$UPNPROOT/include - LIBS += $$SSLROOT/lib/libcrypto.a - LIBS += $$SSLROOT/lib/libssl.a - LIBS += $$BOOSTROOT/lib/libboost_system.a - LIBS += $$BOOSTROOT/lib/libboost_date_time.a - LIBS += $$BOOSTROOT/lib/libboost_filesystem.a - LIBS += $$BOOSTROOT/lib/libboost_program_options.a - LIBS += $$UPNPROOT/lib/libminiupnpc.a -} - -linux:!android { - message("Using Linux settings") - LIBS += -lcrypto -lssl -lboost_system -lboost_date_time -lboost_filesystem -lboost_program_options -lpthread -lminiupnpc -} - -windows { - message("Using Windows settings") - RC_FILE = i2pd.rc - DEFINES += BOOST_USE_WINDOWS_H WINDOWS _WINDOWS WIN32_LEAN_AND_MEAN MINIUPNP_STATICLIB - DEFINES -= UNICODE _UNICODE - BOOST_SUFFIX = -mt - QMAKE_CXXFLAGS_RELEASE = -Os - QMAKE_LFLAGS = -Wl,-Bstatic -static-libgcc -static-libstdc++ -mwindows - - #linker's -s means "strip" - QMAKE_LFLAGS_RELEASE += -s - - LIBS = -lminiupnpc \ - -lboost_system$$BOOST_SUFFIX \ - -lboost_date_time$$BOOST_SUFFIX \ - -lboost_filesystem$$BOOST_SUFFIX \ - -lboost_program_options$$BOOST_SUFFIX \ - -lssl \ - -lcrypto \ - -lz \ - -lwsock32 \ - -lws2_32 \ - -lgdi32 \ - -liphlpapi \ - -lstdc++ \ - -lpthread -} - -!android:!symbian:!maemo5:!simulator { - message("Build with a system tray icon") - # see also http://doc.qt.io/qt-4.8/qt-desktop-systray-systray-pro.html for example on wince* - #sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS i2pd_qt.pro resources images - RESOURCES = i2pd.qrc - QT += xml - #INSTALLS += sources -} - diff --git a/qt/i2pd_qt/logviewermanager.cpp b/qt/i2pd_qt/logviewermanager.cpp deleted file mode 100644 index 30fc904a..00000000 --- a/qt/i2pd_qt/logviewermanager.cpp +++ /dev/null @@ -1,45 +0,0 @@ -#include "logviewermanager.h" - -LogViewerManager::LogViewerManager(std::shared_ptr logStream_, - QPlainTextEdit* logTextEdit_, - QObject *parent) : - QObject(parent), - logStream(logStream_), - logTextEdit(logTextEdit_), - controllerForBgThread(nullptr) -{ - assert(logTextEdit!=nullptr); - controllerForBgThread=new i2pd::qt::logviewer::Controller(*this); -} - -namespace i2pd { -namespace qt { -namespace logviewer { - -QString Worker::pollAndShootATimerForInfiniteRetries() { - std::shared_ptr logStream=logViewerManager.getLogStream(); - assert(logStream!=nullptr); - std::streamsize MAX_SZ=64*1024; - char*buf=(char*)malloc(MAX_SZ*sizeof(char)); - if(buf==nullptr)return ""; - std::streamsize read=logStream->readsome(buf, MAX_SZ); - if(read<0)read=0; - QString ret=QString::fromUtf8(buf, read); - free(buf); - return ret; -} - -Controller::Controller(LogViewerManager ¶meter1):logViewerManager(parameter1) { - Worker *worker = new Worker(parameter1); - worker->moveToThread(&workerThread); - connect(&workerThread, &QThread::finished, worker, &QObject::deleteLater); - connect(this, &Controller::operate1, worker, &Worker::doWork1); - connect(worker, &Worker::resultReady, - ¶meter1, &LogViewerManager::appendPlainText_atGuiThread); - workerThread.start(); - timerId=startTimer(100/*millis*/); -} - -} -} -} diff --git a/qt/i2pd_qt/logviewermanager.h b/qt/i2pd_qt/logviewermanager.h deleted file mode 100644 index e9ede79f..00000000 --- a/qt/i2pd_qt/logviewermanager.h +++ /dev/null @@ -1,130 +0,0 @@ -#ifndef LOGVIEWERMANAGER_H -#define LOGVIEWERMANAGER_H - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "FS.h" -#include "Log.h" - -class LogViewerManager; - -namespace i2pd { -namespace qt { -namespace logviewer { - -class Worker : public QObject -{ - Q_OBJECT -private: - LogViewerManager &logViewerManager; -public: - Worker(LogViewerManager ¶meter1):logViewerManager(parameter1){} -private: - QString pollAndShootATimerForInfiniteRetries(); - -public slots: - void doWork1() { - /* ... here is the expensive or blocking operation ... */ - QString read=pollAndShootATimerForInfiniteRetries(); - emit resultReady(read); - } - -signals: - void resultReady(QString read); -}; - -class Controller : public QObject -{ - Q_OBJECT - QThread workerThread; - LogViewerManager& logViewerManager; - int timerId; -public: - Controller(LogViewerManager ¶meter1); - ~Controller() { - if(timerId!=0)killTimer(timerId); - workerThread.quit(); - workerThread.wait(); - } -signals: - void operate1(); -protected: - void timerEvent(QTimerEvent */*event*/) { - emit operate1(); - } -}; - -} -} -} - -class LogViewerManager : public QObject -{ - Q_OBJECT -private: - std::shared_ptr logStream; - QPlainTextEdit* logTextEdit; - i2pd::qt::logviewer::Controller* controllerForBgThread; -public: - //also starts a bg thread (QTimer) polling logStream->readsome(buf, n) - explicit LogViewerManager(std::shared_ptr logStream_, - QPlainTextEdit* logTextEdit_, - QObject *parent); - //also deallocs the bg thread (QTimer) - virtual ~LogViewerManager(){} - const i2pd::qt::logviewer::Controller& getControllerForBgThread() { - assert(controllerForBgThread!=nullptr); - return *controllerForBgThread; - } - const QPlainTextEdit* getLogTextEdit(){ return logTextEdit; } - const std::shared_ptr getLogStream(){ return logStream; } -signals: - -public slots: - //void appendFromNonGuiThread(std::string read) { - //} -public slots: - void appendPlainText_atGuiThread(QString plainText) { - if(plainText.length()==0)return; - assert(logTextEdit!=nullptr); - int scrollPosVert =logTextEdit->verticalScrollBar()->value(); - int scrollPosHoriz=logTextEdit->horizontalScrollBar()->value(); - int scrollPosVertMax =logTextEdit->verticalScrollBar()->maximum(); - const int MAX_LINES=10*1024; - logTextEdit->setMaximumBlockCount(MAX_LINES); - //logTextEdit->appendPlainText(plainText); - //navigate the window to the end - //QTextCursor cursor = logTextEdit->textCursor(); - //cursor.movePosition(QTextCursor::MoveOperation::End); - //logTextEdit->setTextCursor(cursor); - //QTextCursor prev_cursor = logTextEdit->textCursor(); - logTextEdit->moveCursor(QTextCursor::End); - logTextEdit->insertPlainText(plainText); - if(/*prev_cursor.atEnd()*/scrollPosVert==scrollPosVertMax){ - //logTextEdit->moveCursor(QTextCursor::End); - scrollPosVert =logTextEdit->verticalScrollBar()->maximum(); - scrollPosHoriz=logTextEdit->horizontalScrollBar()->minimum(); - } - //else - // logTextEdit->setTextCursor(prev_cursor); - logTextEdit->verticalScrollBar()->setValue(scrollPosVert); - logTextEdit->horizontalScrollBar()->setValue(scrollPosHoriz); - } - /* - void replaceText_atGuiThread() { - assert(logTextEdit!=nullptr); - logTextEdit->setText(QString::fromStdString(nav.getContent())); - } - */ -}; - -#endif // LOGVIEWERMANAGER_H diff --git a/qt/i2pd_qt/mainwindow.cpp b/qt/i2pd_qt/mainwindow.cpp deleted file mode 100644 index e4c9f2a7..00000000 --- a/qt/i2pd_qt/mainwindow.cpp +++ /dev/null @@ -1,923 +0,0 @@ -#include -#include -#include "mainwindow.h" -#include "ui_mainwindow.h" -#include "ui_statusbuttons.h" -#include "ui_routercommandswidget.h" -#include "ui_generalsettingswidget.h" -#include -#include -#include -#include -#include -#include -#include "RouterContext.h" -#include "Config.h" -#include "FS.h" -#include "Log.h" -#include "RouterContext.h" -#include "Transports.h" - -#include "HTTPServer.h" - -#ifndef ANDROID -# include -#endif - -#include "DaemonQT.h" -#include "SignatureTypeComboboxFactory.h" - -#include "logviewermanager.h" - -std::string programOptionsWriterCurrentSection; - -MainWindow::MainWindow(std::shared_ptr logStream_, QWidget *parent) : - QMainWindow(parent) - ,logStream(logStream_) -#ifndef ANDROID - ,quitting(false) -#endif - ,wasSelectingAtStatusMainPage(false) - ,showHiddenInfoStatusMainPage(false) - ,logViewerManagerPtr(nullptr) - ,ui(new Ui::MainWindow) - ,statusButtonsUI(new Ui::StatusButtonsForm) - ,routerCommandsUI(new Ui::routerCommandsWidget) - ,uiSettings(new Ui::GeneralSettingsContentsForm) - ,routerCommandsParent(new QWidget(this)) - ,widgetlocks() - ,i2pController(nullptr) - ,configItems() - ,datadir() - ,confpath() - ,tunconfpath() - ,tunnelsPageUpdateListener(this) - -{ - ui->setupUi(this); - statusButtonsUI->setupUi(ui->statusButtonsPane); - routerCommandsUI->setupUi(routerCommandsParent); - uiSettings->setupUi(ui->settingsContents); - routerCommandsParent->hide(); - ui->verticalLayout_2->addWidget(routerCommandsParent); - //,statusHtmlUI(new Ui::StatusHtmlPaneForm) - //statusHtmlUI->setupUi(lastStatusWidgetui->statusWidget); - ui->statusButtonsPane->setFixedSize(171,300); - ui->verticalLayout->setGeometry(QRect(0,0,171,ui->verticalLayout->geometry().height())); - //ui->statusButtonsPane->adjustSize(); - //ui->centralWidget->adjustSize(); - setWindowTitle(QApplication::translate("AppTitle","I2PD")); - - //TODO handle resizes and change the below into resize() call - setFixedHeight(550); - ui->centralWidget->setFixedHeight(550); - onResize(); - - ui->stackedWidget->setCurrentIndex(0); - ui->settingsScrollArea->resize(uiSettings->settingsContentsGridLayout->sizeHint().width()+10,380); - QScrollBar* const barSett = ui->settingsScrollArea->verticalScrollBar(); - int w = 683; - int h = 3060; - ui->settingsContents->setFixedSize(w, h); - ui->settingsContents->setGeometry(QRect(0,0,w,h)); - - /* - QPalette pal(palette()); - pal.setColor(QPalette::Background, Qt::red); - ui->settingsContents->setAutoFillBackground(true); - ui->settingsContents->setPalette(pal); - */ - QPalette pal(palette()); - pal.setColor(QPalette::Background, Qt::red); - ui->wrongInputLabel->setAutoFillBackground(true); - ui->wrongInputLabel->setPalette(pal); - ui->wrongInputLabel->setMaximumHeight(ui->wrongInputLabel->sizeHint().height()); - ui->wrongInputLabel->setVisible(false); - - settingsTitleLabelNominalHeight = ui->settingsTitleLabel->height(); -#ifndef ANDROID - createActions(); - createTrayIcon(); -#endif - - textBrowser = new TextBrowserTweaked1(this); - //textBrowser->setOpenExternalLinks(false); - textBrowser->setOpenLinks(false); - /*textBrowser->setTextInteractionFlags(textBrowser->textInteractionFlags()| - Qt::LinksAccessibleByMouse|Qt::LinksAccessibleByKeyboard| - Qt::TextSelectableByMouse|Qt::TextSelectableByKeyboard);*/ - ui->verticalLayout_2->addWidget(textBrowser); - childTextBrowser = new TextBrowserTweaked1(this); - //childTextBrowser->setOpenExternalLinks(false); - childTextBrowser->setOpenLinks(false); - connect(textBrowser, SIGNAL(anchorClicked(const QUrl&)), this, SLOT(anchorClickedHandler(const QUrl&))); - pageWithBackButton = new PageWithBackButton(this, childTextBrowser); - ui->verticalLayout_2->addWidget(pageWithBackButton); - pageWithBackButton->hide(); - connect(pageWithBackButton, SIGNAL(backReleased()), this, SLOT(backClickedFromChild())); - scheduleStatusPageUpdates(); - - QObject::connect(ui->statusPagePushButton, SIGNAL(released()), this, SLOT(showStatusMainPage())); - showStatusMainPage(); - QObject::connect(statusButtonsUI->mainPagePushButton, SIGNAL(released()), this, SLOT(showStatusMainPage())); - QObject::connect(statusButtonsUI->routerCommandsPushButton, SIGNAL(released()), this, SLOT(showStatus_commands_Page())); - QObject::connect(statusButtonsUI->localDestinationsPushButton, SIGNAL(released()), this, SLOT(showStatus_local_destinations_Page())); - QObject::connect(statusButtonsUI->leasesetsPushButton, SIGNAL(released()), this, SLOT(showStatus_leasesets_Page())); - QObject::connect(statusButtonsUI->tunnelsPushButton, SIGNAL(released()), this, SLOT(showStatus_tunnels_Page())); - QObject::connect(statusButtonsUI->transitTunnelsPushButton, SIGNAL(released()), this, SLOT(showStatus_transit_tunnels_Page())); - QObject::connect(statusButtonsUI->transportsPushButton, SIGNAL(released()), this, SLOT(showStatus_transports_Page())); - QObject::connect(statusButtonsUI->i2pTunnelsPushButton, SIGNAL(released()), this, SLOT(showStatus_i2p_tunnels_Page())); - QObject::connect(statusButtonsUI->samSessionsPushButton, SIGNAL(released()), this, SLOT(showStatus_sam_sessions_Page())); - - QObject::connect(textBrowser, SIGNAL(mouseReleased()), this, SLOT(statusHtmlPageMouseReleased())); - QObject::connect(textBrowser, SIGNAL(selectionChanged()), this, SLOT(statusHtmlPageSelectionChanged())); - - QObject::connect(routerCommandsUI->runPeerTestPushButton, SIGNAL(released()), this, SLOT(runPeerTest())); - QObject::connect(routerCommandsUI->acceptTransitTunnelsPushButton, SIGNAL(released()), this, SLOT(enableTransit())); - QObject::connect(routerCommandsUI->declineTransitTunnelsPushButton, SIGNAL(released()), this, SLOT(disableTransit())); - - QObject::connect(ui->logViewerPushButton, SIGNAL(released()), this, SLOT(showLogViewerPage())); - - QObject::connect(ui->settingsPagePushButton, SIGNAL(released()), this, SLOT(showSettingsPage())); - - QObject::connect(ui->tunnelsPagePushButton, SIGNAL(released()), this, SLOT(showTunnelsPage())); - QObject::connect(ui->restartPagePushButton, SIGNAL(released()), this, SLOT(showRestartPage())); - QObject::connect(ui->quitPagePushButton, SIGNAL(released()), this, SLOT(showQuitPage())); - - QObject::connect(ui->fastQuitPushButton, SIGNAL(released()), this, SLOT(handleQuitButton())); - QObject::connect(ui->gracefulQuitPushButton, SIGNAL(released()), this, SLOT(handleGracefulQuitButton())); - - QObject::connect(ui->doRestartI2PDPushButton, SIGNAL(released()), this, SLOT(handleDoRestartButton())); - -# define OPTION(section,option,defaultValueGetter) ConfigOption(QString(section),QString(option)) - - initFileChooser( OPTION("","conf",[](){return "";}), uiSettings->configFileLineEdit, uiSettings->configFileBrowsePushButton); - initFolderChooser( OPTION("","datadir",[]{return "";}), uiSettings->dataFolderLineEdit, uiSettings->dataFolderBrowsePushButton); - initFileChooser( OPTION("","tunconf",[](){return "";}), uiSettings->tunnelsConfigFileLineEdit, uiSettings->tunnelsConfigFileBrowsePushButton); - - initFileChooser( OPTION("","pidfile",[]{return "";}), uiSettings->pidFileLineEdit, uiSettings->pidFileBrowsePushButton); - daemonOption=initNonGUIOption( OPTION("","daemon",[]{return "";})); - serviceOption=initNonGUIOption( OPTION("","service",[]{return "";})); - - uiSettings->logDestinationComboBox->clear(); - uiSettings->logDestinationComboBox->insertItems(0, QStringList() - << QApplication::translate("MainWindow", "syslog", 0) - << QApplication::translate("MainWindow", "stdout", 0) - << QApplication::translate("MainWindow", "file", 0) - ); - initLogDestinationCombobox( OPTION("","log",[]{return "";}), uiSettings->logDestinationComboBox); - - logFileNameOption=initFileChooser( OPTION("","logfile",[]{return "";}), uiSettings->logFileLineEdit, uiSettings->logFileBrowsePushButton); - initLogLevelCombobox(OPTION("","loglevel",[]{return "";}), uiSettings->logLevelComboBox); - - initIPAddressBox( OPTION("","host",[]{return "";}), uiSettings->routerExternalHostLineEdit, tr("Router external address -> Host")); - initTCPPortBox( OPTION("","port",[]{return "";}), uiSettings->routerExternalPortLineEdit, tr("Router external address -> Port")); - - initCheckBox( OPTION("","ipv6",[]{return "false";}), uiSettings->ipv6CheckBox); - initCheckBox( OPTION("","notransit",[]{return "false";}), uiSettings->notransitCheckBox); - initCheckBox( OPTION("","floodfill",[]{return "false";}), uiSettings->floodfillCheckBox); - initStringBox( OPTION("","bandwidth",[]{return "";}), uiSettings->bandwidthLineEdit); - initStringBox( OPTION("","family",[]{return "";}), uiSettings->familyLineEdit); - initIntegerBox( OPTION("","netid",[]{return "2";}), uiSettings->netIdLineEdit, tr("NetID")); - -#ifdef Q_OS_WIN - initCheckBox( OPTION("","insomnia",[]{return "";}), uiSettings->insomniaCheckBox); - initNonGUIOption( OPTION("","svcctl",[]{return "";})); - initNonGUIOption( OPTION("","close",[]{return "";})); -#else - uiSettings->insomniaCheckBox->setEnabled(false); -#endif - - initCheckBox( OPTION("http","enabled",[]{return "true";}), uiSettings->webconsoleEnabledCheckBox); - initIPAddressBox( OPTION("http","address",[]{return "";}), uiSettings->webconsoleAddrLineEdit, tr("HTTP webconsole -> IP address")); - initTCPPortBox( OPTION("http","port",[]{return "7070";}), uiSettings->webconsolePortLineEdit, tr("HTTP webconsole -> Port")); - initCheckBox( OPTION("http","auth",[]{return "";}), uiSettings->webconsoleBasicAuthCheckBox); - initStringBox( OPTION("http","user",[]{return "i2pd";}), uiSettings->webconsoleUserNameLineEditBasicAuth); - initStringBox( OPTION("http","pass",[]{return "";}), uiSettings->webconsolePasswordLineEditBasicAuth); - - initCheckBox( OPTION("httpproxy","enabled",[]{return "";}), uiSettings->httpProxyEnabledCheckBox); - initIPAddressBox( OPTION("httpproxy","address",[]{return "";}), uiSettings->httpProxyAddressLineEdit, tr("HTTP proxy -> IP address")); - initTCPPortBox( OPTION("httpproxy","port",[]{return "4444";}), uiSettings->httpProxyPortLineEdit, tr("HTTP proxy -> Port")); - initFileChooser( OPTION("httpproxy","keys",[]{return "";}), uiSettings->httpProxyKeyFileLineEdit, uiSettings->httpProxyKeyFilePushButton); - - initSignatureTypeCombobox(OPTION("httpproxy","signaturetype",[]{return "7";}), uiSettings->comboBox_httpPorxySignatureType); - initStringBox( OPTION("httpproxy","inbound.length",[]{return "3";}), uiSettings->httpProxyInboundTunnelsLenLineEdit); - initStringBox( OPTION("httpproxy","inbound.quantity",[]{return "5";}), uiSettings->httpProxyInboundTunnQuantityLineEdit); - initStringBox( OPTION("httpproxy","outbound.length",[]{return "3";}), uiSettings->httpProxyOutBoundTunnLenLineEdit); - initStringBox( OPTION("httpproxy","outbound.quantity",[]{return "5";}), uiSettings->httpProxyOutboundTunnQuantityLineEdit); - - initCheckBox( OPTION("socksproxy","enabled",[]{return "";}), uiSettings->socksProxyEnabledCheckBox); - initIPAddressBox( OPTION("socksproxy","address",[]{return "";}), uiSettings->socksProxyAddressLineEdit, tr("Socks proxy -> IP address")); - initTCPPortBox( OPTION("socksproxy","port",[]{return "4447";}), uiSettings->socksProxyPortLineEdit, tr("Socks proxy -> Port")); - initFileChooser( OPTION("socksproxy","keys",[]{return "";}), uiSettings->socksProxyKeyFileLineEdit, uiSettings->socksProxyKeyFilePushButton); - initSignatureTypeCombobox(OPTION("socksproxy","signaturetype",[]{return "7";}), uiSettings->comboBox_socksProxySignatureType); - initStringBox( OPTION("socksproxy","inbound.length",[]{return "";}), uiSettings->socksProxyInboundTunnelsLenLineEdit); - initStringBox( OPTION("socksproxy","inbound.quantity",[]{return "";}), uiSettings->socksProxyInboundTunnQuantityLineEdit); - initStringBox( OPTION("socksproxy","outbound.length",[]{return "";}), uiSettings->socksProxyOutBoundTunnLenLineEdit); - initStringBox( OPTION("socksproxy","outbound.quantity",[]{return "";}), uiSettings->socksProxyOutboundTunnQuantityLineEdit); - initIPAddressBox( OPTION("socksproxy","outproxy",[]{return "";}), uiSettings->outproxyAddressLineEdit, tr("Socks proxy -> Outproxy address")); - initTCPPortBox( OPTION("socksproxy","outproxyport",[]{return "";}), uiSettings->outproxyPortLineEdit, tr("Socks proxy -> Outproxy port")); - - initCheckBox( OPTION("sam","enabled",[]{return "false";}), uiSettings->samEnabledCheckBox); - initIPAddressBox( OPTION("sam","address",[]{return "";}), uiSettings->samAddressLineEdit, tr("SAM -> IP address")); - initTCPPortBox( OPTION("sam","port",[]{return "7656";}), uiSettings->samPortLineEdit, tr("SAM -> Port")); - - initCheckBox( OPTION("bob","enabled",[]{return "false";}), uiSettings->bobEnabledCheckBox); - initIPAddressBox( OPTION("bob","address",[]{return "";}), uiSettings->bobAddressLineEdit, tr("BOB -> IP address")); - initTCPPortBox( OPTION("bob","port",[]{return "2827";}), uiSettings->bobPortLineEdit, tr("BOB -> Port")); - - initCheckBox( OPTION("i2cp","enabled",[]{return "false";}), uiSettings->i2cpEnabledCheckBox); - initIPAddressBox( OPTION("i2cp","address",[]{return "";}), uiSettings->i2cpAddressLineEdit, tr("I2CP -> IP address")); - initTCPPortBox( OPTION("i2cp","port",[]{return "7654";}), uiSettings->i2cpPortLineEdit, tr("I2CP -> Port")); - - initCheckBox( OPTION("i2pcontrol","enabled",[]{return "false";}), uiSettings->i2pControlEnabledCheckBox); - initIPAddressBox( OPTION("i2pcontrol","address",[]{return "";}), uiSettings->i2pControlAddressLineEdit, tr("I2PControl -> IP address")); - initTCPPortBox( OPTION("i2pcontrol","port",[]{return "7650";}), uiSettings->i2pControlPortLineEdit, tr("I2PControl -> Port")); - initStringBox( OPTION("i2pcontrol","password",[]{return "";}), uiSettings->i2pControlPasswordLineEdit); - initFileChooser( OPTION("i2pcontrol","cert",[]{return "i2pcontrol.crt.pem";}), uiSettings->i2pControlCertFileLineEdit, uiSettings->i2pControlCertFileBrowsePushButton); - initFileChooser( OPTION("i2pcontrol","key",[]{return "i2pcontrol.key.pem";}), uiSettings->i2pControlKeyFileLineEdit, uiSettings->i2pControlKeyFileBrowsePushButton); - - initCheckBox( OPTION("upnp","enabled",[]{return "true";}), uiSettings->enableUPnPCheckBox); - initStringBox( OPTION("upnp","name",[]{return "I2Pd";}), uiSettings->upnpNameLineEdit); - - initCheckBox( OPTION("precomputation","elgamal",[]{return "false";}), uiSettings->useElGamalPrecomputedTablesCheckBox); - - initCheckBox( OPTION("reseed","verify",[]{return "";}), uiSettings->reseedVerifyCheckBox); - initFileChooser( OPTION("reseed","file",[]{return "";}), uiSettings->reseedFileLineEdit, uiSettings->reseedFileBrowsePushButton); - initStringBox( OPTION("reseed","urls",[]{return "";}), uiSettings->reseedURLsLineEdit); - - initStringBox( OPTION("addressbook","defaulturl",[]{return "";}), uiSettings->addressbookDefaultURLLineEdit); - initStringBox( OPTION("addressbook","subscriptions",[]{return "";}), uiSettings->addressbookSubscriptionsURLslineEdit); - - initUInt16Box( OPTION("limits","transittunnels",[]{return "2500";}), uiSettings->maxNumOfTransitTunnelsLineEdit, tr("maxNumberOfTransitTunnels")); - initUInt16Box( OPTION("limits","openfiles",[]{return "0";}), uiSettings->maxNumOfOpenFilesLineEdit, tr("maxNumberOfOpenFiles")); - initUInt32Box( OPTION("limits","coresize",[]{return "0";}), uiSettings->coreFileMaxSizeNumberLineEdit, tr("coreFileMaxSize")); - - initCheckBox( OPTION("trust","enabled",[]{return "false";}), uiSettings->checkBoxTrustEnable); - initStringBox( OPTION("trust","family",[]{return "";}), uiSettings->lineEditTrustFamily); - initStringBox( OPTION("trust","routers",[]{return "";}), uiSettings->lineEditTrustRouters); - initCheckBox( OPTION("trust","hidden",[]{return "false";}), uiSettings->checkBoxTrustHidden); - - initCheckBox( OPTION("websockets","enabled",[]{return "false";}), uiSettings->checkBoxWebsocketsEnable); - initIPAddressBox( OPTION("websockets","address",[]{return "127.0.0.1";}), uiSettings->lineEdit_webSock_addr, tr("Websocket server -> IP address")); - initTCPPortBox( OPTION("websockets","port",[]{return "7666";}), uiSettings->lineEdit_webSock_port, tr("Websocket server -> Port")); - -# undef OPTION - - //widgetlocks.add(new widgetlock(widget,lockbtn)); - widgetlocks.add(new widgetlock(uiSettings->logDestinationComboBox,uiSettings->logDestComboEditPushButton)); - widgetlocks.add(new widgetlock(uiSettings->logLevelComboBox,uiSettings->logLevelComboEditPushButton)); - widgetlocks.add(new widgetlock(uiSettings->comboBox_httpPorxySignatureType,uiSettings->httpProxySignTypeComboEditPushButton)); - widgetlocks.add(new widgetlock(uiSettings->comboBox_socksProxySignatureType,uiSettings->socksProxySignTypeComboEditPushButton)); - - loadAllConfigs(); - - QObject::connect(uiSettings->logDestinationComboBox, SIGNAL(currentIndexChanged(const QString &)), - this, SLOT(logDestinationComboBoxValueChanged(const QString &))); - logDestinationComboBoxValueChanged(uiSettings->logDestinationComboBox->currentText()); - - ui->tunnelsScrollAreaWidgetContents->setGeometry(QRect(0, 0, 621, 451)); - - appendTunnelForms(""); - - uiSettings->configFileLineEdit->setEnabled(false); - uiSettings->configFileBrowsePushButton->setEnabled(false); - uiSettings->configFileLineEdit->setText(confpath); - uiSettings->tunnelsConfigFileLineEdit->setText(tunconfpath); - - for(QList::iterator it = configItems.begin(); it!= configItems.end(); ++it) { - MainWindowItem* item = *it; - item->installListeners(this); - } - - QObject::connect(uiSettings->tunnelsConfigFileLineEdit, SIGNAL(textChanged(const QString &)), - this, SLOT(reloadTunnelsConfigAndUI())); - - QObject::connect(ui->addServerTunnelPushButton, SIGNAL(released()), this, SLOT(addServerTunnelPushButtonReleased())); - QObject::connect(ui->addClientTunnelPushButton, SIGNAL(released()), this, SLOT(addClientTunnelPushButtonReleased())); - - -#ifndef ANDROID - QObject::connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), - this, SLOT(iconActivated(QSystemTrayIcon::ActivationReason))); - - setIcon(); - trayIcon->show(); -#endif - - logViewerManagerPtr=new LogViewerManager(logStream_,ui->logViewerTextEdit,this); - assert(logViewerManagerPtr!=nullptr); - onLoggingOptionsChange(); - //QMetaObject::connectSlotsByName(this); -} - -void MainWindow::logDestinationComboBoxValueChanged(const QString & text) { - bool fileEnabled = text==QString("file"); - uiSettings->logFileLineEdit->setEnabled(fileEnabled); - uiSettings->logFileBrowsePushButton->setEnabled(fileEnabled); -} - - -void MainWindow::updateRouterCommandsButtons() { - bool acceptsTunnels = i2p::context.AcceptsTunnels (); - routerCommandsUI->declineTransitTunnelsPushButton->setEnabled(acceptsTunnels); - routerCommandsUI->acceptTransitTunnelsPushButton->setEnabled(!acceptsTunnels); -} - -void MainWindow::showStatusPage(StatusPage newStatusPage){ - ui->stackedWidget->setCurrentIndex(0); - setStatusButtonsVisible(true); - statusPage=newStatusPage; - showHiddenInfoStatusMainPage=false; - if(newStatusPage!=StatusPage::commands){ - textBrowser->setHtml(getStatusPageHtml(false)); - textBrowser->show(); - routerCommandsParent->hide(); - pageWithBackButton->hide(); - }else{ - routerCommandsParent->show(); - textBrowser->hide(); - pageWithBackButton->hide(); - updateRouterCommandsButtons(); - } - wasSelectingAtStatusMainPage=false; -} -void MainWindow::showLogViewerPage(){ui->stackedWidget->setCurrentIndex(1);setStatusButtonsVisible(false);} -void MainWindow::showSettingsPage(){ui->stackedWidget->setCurrentIndex(2);setStatusButtonsVisible(false);} -void MainWindow::showTunnelsPage(){ui->stackedWidget->setCurrentIndex(3);setStatusButtonsVisible(false);} -void MainWindow::showRestartPage(){ui->stackedWidget->setCurrentIndex(4);setStatusButtonsVisible(false);} -void MainWindow::showQuitPage(){ui->stackedWidget->setCurrentIndex(5);setStatusButtonsVisible(false);} - -void MainWindow::setStatusButtonsVisible(bool visible) { - ui->statusButtonsPane->setVisible(visible); -} - -// see also: HTTPServer.cpp -QString MainWindow::getStatusPageHtml(bool showHiddenInfo) { - std::stringstream s; - - s << ""; - - switch (statusPage) { - case main_page: - i2p::http::ShowStatus(s, showHiddenInfo, i2p::http::OutputFormatEnum::forQtUi); - break; - case commands: break; - case local_destinations: i2p::http::ShowLocalDestinations(s);break; - case leasesets: i2p::http::ShowLeasesSets(s); break; - case tunnels: i2p::http::ShowTunnels(s); break; - case transit_tunnels: i2p::http::ShowTransitTunnels(s); break; - case transports: i2p::http::ShowTransports(s); break; - case i2p_tunnels: i2p::http::ShowI2PTunnels(s); break; - case sam_sessions: i2p::http::ShowSAMSessions(s); break; - default: assert(false); break; - } - - std::string str = s.str(); - return QString::fromStdString(str); -} - -void MainWindow::showStatusMainPage() { showStatusPage(StatusPage::main_page); } -void MainWindow::showStatus_commands_Page() { showStatusPage(StatusPage::commands); } -void MainWindow::showStatus_local_destinations_Page() { showStatusPage(StatusPage::local_destinations); } -void MainWindow::showStatus_leasesets_Page() { showStatusPage(StatusPage::leasesets); } -void MainWindow::showStatus_tunnels_Page() { showStatusPage(StatusPage::tunnels); } -void MainWindow::showStatus_transit_tunnels_Page() { showStatusPage(StatusPage::transit_tunnels); } -void MainWindow::showStatus_transports_Page() { showStatusPage(StatusPage::transports); } -void MainWindow::showStatus_i2p_tunnels_Page() { showStatusPage(StatusPage::i2p_tunnels); } -void MainWindow::showStatus_sam_sessions_Page() { showStatusPage(StatusPage::sam_sessions); } - - -void MainWindow::scheduleStatusPageUpdates() { - statusPageUpdateTimer = new QTimer(this); - connect(statusPageUpdateTimer, SIGNAL(timeout()), this, SLOT(updateStatusPage())); - statusPageUpdateTimer->start(10*1000/*millis*/); -} - -void MainWindow::statusHtmlPageMouseReleased() { - if(wasSelectingAtStatusMainPage){ - QString selection = textBrowser->textCursor().selectedText(); - if(!selection.isEmpty()&&!selection.isNull())return; - } - showHiddenInfoStatusMainPage=!showHiddenInfoStatusMainPage; - textBrowser->setHtml(getStatusPageHtml(showHiddenInfoStatusMainPage)); -} - -void MainWindow::statusHtmlPageSelectionChanged() { - wasSelectingAtStatusMainPage=true; -} - -void MainWindow::updateStatusPage() { - showHiddenInfoStatusMainPage=false; - textBrowser->setHtml(getStatusPageHtml(showHiddenInfoStatusMainPage)); -} - - -//TODO -void MainWindow::resizeEvent(QResizeEvent *event) -{ - QMainWindow::resizeEvent(event); - onResize(); -} - -//TODO -void MainWindow::onResize() -{ - if(isVisible()){ - ui->horizontalLayoutWidget->resize(ui->horizontalLayoutWidget->width(), height()); - - //status - ui->statusPage->resize(ui->statusPage->width(), height()); - - //tunnels - ui->tunnelsPage->resize(ui->tunnelsPage->width(), height()); - ui->verticalLayoutWidget_6->resize(ui->verticalLayoutWidget_6->width(), height()-20); - /*ui->tunnelsScrollArea->resize(ui->tunnelsScrollArea->width(), - ui->verticalLayoutWidget_6->height()-ui->label_5->height());*/ - } -} - -#ifndef ANDROID -void MainWindow::createActions() { - toggleWindowVisibleAction = new QAction(tr("&Toggle the window"), this); - connect(toggleWindowVisibleAction, SIGNAL(triggered()), this, SLOT(toggleVisibilitySlot())); - - //quitAction = new QAction(tr("&Quit"), this); - //connect(quitAction, SIGNAL(triggered()), QApplication::instance(), SLOT(quit())); -} - -void MainWindow::toggleVisibilitySlot() { - setVisible(!isVisible()); -} - -void MainWindow::createTrayIcon() { - trayIconMenu = new QMenu(this); - trayIconMenu->addAction(toggleWindowVisibleAction); - //trayIconMenu->addSeparator(); - //trayIconMenu->addAction(quitAction); - - trayIcon = new QSystemTrayIcon(this); - trayIcon->setContextMenu(trayIconMenu); -} - -void MainWindow::setIcon() { - QIcon icon(":icons/mask"); - trayIcon->setIcon(icon); - setWindowIcon(icon); - - trayIcon->setToolTip(QApplication::translate("MainWindow", "i2pd", 0)); -} - -void MainWindow::iconActivated(QSystemTrayIcon::ActivationReason reason) { - switch (reason) { - case QSystemTrayIcon::Trigger: - case QSystemTrayIcon::DoubleClick: - case QSystemTrayIcon::MiddleClick: - setVisible(!isVisible()); - break; - default: - qDebug() << "MainWindow::iconActivated(): unknown reason: " << reason << endl; - break; - } -} - -void MainWindow::closeEvent(QCloseEvent *event) { - if(quitting){ QMainWindow::closeEvent(event); return; } - if (trayIcon->isVisible()) { - QMessageBox::information(this, tr("i2pd"), - tr("The program will keep running in the " - "system tray. To gracefully terminate the program, " - "choose Graceful Quit at the main i2pd window.")); - hide(); - event->ignore(); - } -} -#endif - -void MainWindow::handleQuitButton() { - qDebug("Quit pressed. Hiding the main window"); -#ifndef ANDROID - quitting=true; -#endif - close(); - QApplication::instance()->quit(); -} - -void MainWindow::handleGracefulQuitButton() { - qDebug("Graceful Quit pressed."); - ui->gracefulQuitPushButton->setText(QApplication::translate("MainWindow", "Graceful quit is in progress", 0)); - ui->gracefulQuitPushButton->setEnabled(false); - ui->gracefulQuitPushButton->adjustSize(); - ui->quitPage->adjustSize(); - i2p::context.SetAcceptsTunnels (false); // stop accpting tunnels - QTimer::singleShot(10*60*1000//millis - , this, SLOT(handleGracefulQuitTimerEvent())); -} - -void MainWindow::handleDoRestartButton() { - qDebug()<<"Do Restart pressed."; - emit i2pController->restartDaemon(); -} - - -void MainWindow::handleGracefulQuitTimerEvent() { - qDebug("Hiding the main window"); -#ifndef ANDROID - quitting=true; -#endif - close(); - qDebug("Performing quit"); - QApplication::instance()->quit(); -} - -MainWindow::~MainWindow() -{ - qDebug("Destroying main window"); - delete statusPageUpdateTimer; - for(QList::iterator it = configItems.begin(); it!= configItems.end(); ++it) { - MainWindowItem* item = *it; - item->deleteLater(); - } - configItems.clear(); - //QMessageBox::information(0, "Debug", "mw destructor 1"); - //delete ui; - //QMessageBox::information(0, "Debug", "mw destructor 2"); -} - -FileChooserItem* MainWindow::initFileChooser(ConfigOption option, QLineEdit* fileNameLineEdit, QPushButton* fileBrowsePushButton){ - FileChooserItem* retVal; - retVal=new FileChooserItem(option, fileNameLineEdit, fileBrowsePushButton); - MainWindowItem* super=retVal; - configItems.append(super); - return retVal; -} -void MainWindow::initFolderChooser(ConfigOption option, QLineEdit* folderLineEdit, QPushButton* folderBrowsePushButton){ - configItems.append(new FolderChooserItem(option, folderLineEdit, folderBrowsePushButton)); -} -/*void MainWindow::initCombobox(ConfigOption option, QComboBox* comboBox){ - configItems.append(new ComboBoxItem(option, comboBox)); - QObject::connect(comboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(saveAllConfigs())); -}*/ -void MainWindow::initLogDestinationCombobox(ConfigOption option, QComboBox* comboBox){ - configItems.append(new LogDestinationComboBoxItem(option, comboBox)); -} -void MainWindow::initLogLevelCombobox(ConfigOption option, QComboBox* comboBox){ - configItems.append(new LogLevelComboBoxItem(option, comboBox)); -} -void MainWindow::initSignatureTypeCombobox(ConfigOption option, QComboBox* comboBox){ - configItems.append(new SignatureTypeComboBoxItem(option, comboBox)); -} -void MainWindow::initIPAddressBox(ConfigOption option, QLineEdit* addressLineEdit, QString fieldNameTranslated){ - configItems.append(new IPAddressStringItem(option, addressLineEdit, fieldNameTranslated)); -} -void MainWindow::initTCPPortBox(ConfigOption option, QLineEdit* portLineEdit, QString fieldNameTranslated){ - configItems.append(new TCPPortStringItem(option, portLineEdit, fieldNameTranslated)); -} -void MainWindow::initCheckBox(ConfigOption option, QCheckBox* checkBox) { - configItems.append(new CheckBoxItem(option, checkBox)); -} -void MainWindow::initIntegerBox(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated){ - configItems.append(new IntegerStringItem(option, numberLineEdit, fieldNameTranslated)); -} -void MainWindow::initUInt32Box(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated){ - configItems.append(new UInt32StringItem(option, numberLineEdit, fieldNameTranslated)); -} -void MainWindow::initUInt16Box(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated){ - configItems.append(new UInt16StringItem(option, numberLineEdit, fieldNameTranslated)); -} -void MainWindow::initStringBox(ConfigOption option, QLineEdit* lineEdit){ - configItems.append(new BaseStringItem(option, lineEdit, QString())); -} -NonGUIOptionItem* MainWindow::initNonGUIOption(ConfigOption option) { - NonGUIOptionItem * retValue; - configItems.append(retValue=new NonGUIOptionItem(option)); - return retValue; -} - -void MainWindow::loadAllConfigs(){ - - //BORROWED FROM ??? //TODO move this code into single location - std::string config; i2p::config::GetOption("conf", config); - std::string datadir; i2p::config::GetOption("datadir", datadir); - bool service = false; -#ifndef _WIN32 - i2p::config::GetOption("service", service); -#endif - i2p::fs::DetectDataDir(datadir, service); - i2p::fs::Init(); - - datadir = i2p::fs::GetDataDir(); - // TODO: drop old name detection in v2.8.0 - if (config == "") - { - config = i2p::fs::DataDirPath("i2p.conf"); - if (i2p::fs::Exists (config)) { - LogPrint(eLogWarning, "Daemon: please rename i2p.conf to i2pd.conf here: ", config); - } else { - config = i2p::fs::DataDirPath("i2pd.conf"); - /*if (!i2p::fs::Exists (config)) {}*/ - } - } - - //BORROWED FROM ClientContext.cpp //TODO move this code into single location - std::string tunConf; i2p::config::GetOption("tunconf", tunConf); - if (tunConf == "") { - // TODO: cleanup this in 2.8.0 - tunConf = i2p::fs::DataDirPath ("tunnels.cfg"); - if (i2p::fs::Exists(tunConf)) { - LogPrint(eLogWarning, "FS: please rename tunnels.cfg -> tunnels.conf here: ", tunConf); - } else { - tunConf = i2p::fs::DataDirPath ("tunnels.conf"); - } - } - - this->confpath = config.c_str(); - this->datadir = datadir.c_str(); - this->tunconfpath = tunConf.c_str(); - - for(QList::iterator it = configItems.begin(); it!= configItems.end(); ++it) { - MainWindowItem* item = *it; - item->loadFromConfigOption(); - } - - ReadTunnelsConfig(); - - onLoggingOptionsChange(); -} -/** returns false iff not valid items present and save was aborted */ -bool MainWindow::saveAllConfigs(){ - QString cannotSaveSettings = QApplication::tr("Cannot save settings."); - programOptionsWriterCurrentSection=""; - /*if(!logFileNameOption->lineEdit->text().trimmed().isEmpty())logOption->optionValue=boost::any(std::string("file")); - else logOption->optionValue=boost::any(std::string("stdout"));*/ - daemonOption->optionValue=boost::any(false); - serviceOption->optionValue=boost::any(false); - - std::stringstream out; - for(QList::iterator it = configItems.begin(); it!= configItems.end(); ++it) { - MainWindowItem* item = *it; - if(!item->isValid()){ - highlightWrongInput(QApplication::tr("Invalid value for")+" "+item->getConfigOption().section+"::"+item->getConfigOption().option+". "+item->getRequirementToBeValid()+" "+cannotSaveSettings, item->getWidgetToFocus()); - return false; - } - } - - for(QList::iterator it = configItems.begin(); it!= configItems.end(); ++it) { - MainWindowItem* item = *it; - item->saveToStringStream(out); - } - - using namespace std; - - - QString backup=confpath+"~"; - if(QFile::exists(backup)) QFile::remove(backup);//TODO handle errors - if(QFile::exists(confpath)) QFile::rename(confpath, backup);//TODO handle errors - ofstream outfile; - outfile.open(confpath.toStdString());//TODO handle errors - outfile << out.str().c_str(); - outfile.close(); - - SaveTunnelsConfig(); - - onLoggingOptionsChange(); - - return true; -} - -void FileChooserItem::pushButtonReleased() { - QString fileName = lineEdit->text().trimmed(); - fileName = QFileDialog::getOpenFileName(nullptr, tr("Open File"), fileName, tr("All Files (*.*)")); - if(fileName.length()>0)lineEdit->setText(fileName); -} -void FolderChooserItem::pushButtonReleased() { - QString fileName = lineEdit->text().trimmed(); - fileName = QFileDialog::getExistingDirectory(nullptr, tr("Open Folder"), fileName); - if(fileName.length()>0)lineEdit->setText(fileName); -} - -void BaseStringItem::installListeners(MainWindow *mainWindow) { - QObject::connect(lineEdit, SIGNAL(textChanged(const QString &)), mainWindow, SLOT(updated())); -} -void ComboBoxItem::installListeners(MainWindow *mainWindow) { - QObject::connect(comboBox, SIGNAL(currentIndexChanged(int)), mainWindow, SLOT(updated())); -} -void CheckBoxItem::installListeners(MainWindow *mainWindow) { - QObject::connect(checkBox, SIGNAL(stateChanged(int)), mainWindow, SLOT(updated())); -} - -void MainWindow::updated() { - ui->wrongInputLabel->setVisible(false); - adjustSizesAccordingToWrongLabel(); - - applyTunnelsUiToConfigs(); - saveAllConfigs(); -} - -void MainWindowItem::installListeners(MainWindow *mainWindow) {} - -void MainWindow::appendTunnelForms(std::string tunnelNameToFocus) { - int height=0; - ui->tunnelsScrollAreaWidgetContents->setGeometry(0,0,0,0); - for(std::map::iterator it = tunnelConfigs.begin(); it != tunnelConfigs.end(); ++it) { - const std::string& name=it->first; - TunnelConfig* tunconf = it->second; - ServerTunnelConfig* stc = tunconf->asServerTunnelConfig(); - if(stc){ - ServerTunnelPane * tunnelPane=new ServerTunnelPane(&tunnelsPageUpdateListener, stc, ui->wrongInputLabel, ui->wrongInputLabel, this); - int h=tunnelPane->appendServerTunnelForm(stc, ui->tunnelsScrollAreaWidgetContents, tunnelPanes.size(), height); - height+=h; - //qDebug() << "tun.height:" << height << "sz:" << tunnelPanes.size(); - tunnelPanes.push_back(tunnelPane); - if(name==tunnelNameToFocus){ - tunnelPane->getNameLineEdit()->setFocus(); - ui->tunnelsScrollArea->ensureWidgetVisible(tunnelPane->getNameLineEdit()); - } - continue; - } - ClientTunnelConfig* ctc = tunconf->asClientTunnelConfig(); - if(ctc){ - ClientTunnelPane * tunnelPane=new ClientTunnelPane(&tunnelsPageUpdateListener, ctc, ui->wrongInputLabel, ui->wrongInputLabel, this); - int h=tunnelPane->appendClientTunnelForm(ctc, ui->tunnelsScrollAreaWidgetContents, tunnelPanes.size(), height); - height+=h; - //qDebug() << "tun.height:" << height << "sz:" << tunnelPanes.size(); - tunnelPanes.push_back(tunnelPane); - if(name==tunnelNameToFocus){ - tunnelPane->getNameLineEdit()->setFocus(); - ui->tunnelsScrollArea->ensureWidgetVisible(tunnelPane->getNameLineEdit()); - } - continue; - } - throw "unknown TunnelConfig subtype"; - } - //qDebug() << "tun.setting height:" << height; - ui->tunnelsScrollAreaWidgetContents->setGeometry(QRect(0, 0, 621, height)); - QList childWidgets = ui->tunnelsScrollAreaWidgetContents->findChildren(); - foreach(QWidget* widget, childWidgets) - widget->show(); -} -void MainWindow::deleteTunnelForms() { - for(std::list::iterator it = tunnelPanes.begin(); it != tunnelPanes.end(); ++it) { - TunnelPane* tp = *it; - ServerTunnelPane* stp = tp->asServerTunnelPane(); - if(stp){ - stp->deleteServerTunnelForm(); - delete stp; - continue; - } - ClientTunnelPane* ctp = tp->asClientTunnelPane(); - if(ctp){ - ctp->deleteClientTunnelForm(); - delete ctp; - continue; - } - throw "unknown TunnelPane subtype"; - } - tunnelPanes.clear(); -} - -bool MainWindow::applyTunnelsUiToConfigs() { - for(std::list::iterator it = tunnelPanes.begin(); it != tunnelPanes.end(); ++it) { - TunnelPane* tp = *it; - if(!tp->applyDataFromUIToTunnelConfig())return false; - } - return true; -} - -void MainWindow::reloadTunnelsConfigAndUI(std::string tunnelNameToFocus) { - deleteTunnelForms(); - for (std::map::iterator it=tunnelConfigs.begin(); it!=tunnelConfigs.end(); ++it) { - TunnelConfig* tunconf = it->second; - delete tunconf; - } - tunnelConfigs.clear(); - ReadTunnelsConfig(); - appendTunnelForms(tunnelNameToFocus); -} - -void MainWindow::SaveTunnelsConfig() { - std::stringstream out; - - for (std::map::iterator it=tunnelConfigs.begin(); it!=tunnelConfigs.end(); ++it) { - const std::string& name = it->first; - TunnelConfig* tunconf = it->second; - tunconf->saveHeaderToStringStream(out); - tunconf->saveToStringStream(out); - tunconf->saveI2CPParametersToStringStream(out); - } - - using namespace std; - - QString backup=tunconfpath+"~"; - if(QFile::exists(backup)) QFile::remove(backup);//TODO handle errors - if(QFile::exists(tunconfpath)) QFile::rename(tunconfpath, backup);//TODO handle errors - ofstream outfile; - outfile.open(tunconfpath.toStdString());//TODO handle errors - outfile << out.str().c_str(); - outfile.close(); - - i2p::client::context.ReloadConfig(); - -} - -void MainWindow::TunnelsPageUpdateListenerMainWindowImpl::updated(std::string oldName, TunnelConfig* tunConf) { - if(oldName!=tunConf->getName()) { - //name has changed - std::map::const_iterator it=mainWindow->tunnelConfigs.find(oldName); - if(it!=mainWindow->tunnelConfigs.end())mainWindow->tunnelConfigs.erase(it); - mainWindow->tunnelConfigs[tunConf->getName()]=tunConf; - } - mainWindow->saveAllConfigs(); -} - -void MainWindow::TunnelsPageUpdateListenerMainWindowImpl::needsDeleting(std::string oldName){ - mainWindow->DeleteTunnelNamed(oldName); -} - -void MainWindow::addServerTunnelPushButtonReleased() { - CreateDefaultServerTunnel(); -} - -void MainWindow::addClientTunnelPushButtonReleased() { - CreateDefaultClientTunnel(); -} - -void MainWindow::setI2PController(i2p::qt::Controller* controller_) { - this->i2pController = controller_; -} - -void MainWindow::runPeerTest() { - i2p::transport::transports.PeerTest(); -} - -void MainWindow::enableTransit() { - i2p::context.SetAcceptsTunnels(true); - updateRouterCommandsButtons(); -} - -void MainWindow::disableTransit() { - i2p::context.SetAcceptsTunnels(false); - updateRouterCommandsButtons(); -} - -void MainWindow::anchorClickedHandler(const QUrl & link) { - QString debugStr=QString()+"anchorClicked: "+"\""+link.toString()+"\""; - qDebug()<show(); - textBrowser->hide(); - std::stringstream s; - i2p::http::ShowLocalDestination(s,str.toStdString()); - childTextBrowser->setHtml(QString::fromStdString(s.str())); - } -} - -void MainWindow::backClickedFromChild() { - showStatusPage(statusPage); -} - -void MainWindow::adjustSizesAccordingToWrongLabel() { - if(ui->wrongInputLabel->isVisible()) { - int dh = ui->wrongInputLabel->height()+ui->verticalLayout_7->layout()->spacing(); - ui->verticalLayout_7->invalidate(); - ui->wrongInputLabel->adjustSize(); - ui->stackedWidget->adjustSize(); - ui->stackedWidget->setFixedHeight(531-dh); - ui->settingsPage->setFixedHeight(531-dh); - ui->verticalLayoutWidget_4->setGeometry(QRect(0, 0, 711, 531-dh)); - ui->stackedWidget->setFixedHeight(531-dh); - ui->settingsScrollArea->setFixedHeight(531-dh-settingsTitleLabelNominalHeight-ui->verticalLayout_4->spacing()); - ui->settingsTitleLabel->setFixedHeight(settingsTitleLabelNominalHeight); - ui->tunnelsScrollArea->setFixedHeight(531-dh-settingsTitleLabelNominalHeight-ui->horizontalLayout_42->geometry().height()-2*ui->verticalLayout_4->spacing()); - ui->tunnelsTitleLabel->setFixedHeight(settingsTitleLabelNominalHeight); - }else{ - ui->verticalLayout_7->invalidate(); - ui->wrongInputLabel->adjustSize(); - ui->stackedWidget->adjustSize(); - ui->stackedWidget->setFixedHeight(531); - ui->settingsPage->setFixedHeight(531); - ui->verticalLayoutWidget_4->setGeometry(QRect(0, 0, 711, 531)); - ui->stackedWidget->setFixedHeight(531); - ui->settingsScrollArea->setFixedHeight(531-settingsTitleLabelNominalHeight-ui->verticalLayout_4->spacing()); - ui->settingsTitleLabel->setFixedHeight(settingsTitleLabelNominalHeight); - ui->tunnelsScrollArea->setFixedHeight(531-settingsTitleLabelNominalHeight-ui->horizontalLayout_42->geometry().height()-2*ui->verticalLayout_4->spacing()); - ui->tunnelsTitleLabel->setFixedHeight(settingsTitleLabelNominalHeight); - } -} - -void MainWindow::highlightWrongInput(QString warningText, QWidget* widgetToFocus) { - bool redVisible = ui->wrongInputLabel->isVisible(); - ui->wrongInputLabel->setVisible(true); - ui->wrongInputLabel->setText(warningText); - if(!redVisible)adjustSizesAccordingToWrongLabel(); - if(widgetToFocus){ui->settingsScrollArea->ensureWidgetVisible(widgetToFocus);widgetToFocus->setFocus();} - showSettingsPage(); -} diff --git a/qt/i2pd_qt/mainwindow.h b/qt/i2pd_qt/mainwindow.h deleted file mode 100644 index 048f44af..00000000 --- a/qt/i2pd_qt/mainwindow.h +++ /dev/null @@ -1,799 +0,0 @@ -#ifndef MAINWINDOW_H -#define MAINWINDOW_H - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "QVBoxLayout" -#include "QUrl" - -#ifndef ANDROID -# include -# include -# include -#endif - -#include - -#include - -#include "MainWindowItems.h" -#include "TunnelPane.h" -#include "ServerTunnelPane.h" -#include "ClientTunnelPane.h" -#include "TunnelConfig.h" -#include "textbrowsertweaked1.h" - -#include "Config.h" -#include "FS.h" - -#include - -#include -#include - -#include "TunnelsPageUpdateListener.h" - -#include "DaemonQT.h" -#include "SignatureTypeComboboxFactory.h" -#include "pagewithbackbutton.h" - -#include - -#include "widgetlockregistry.h" -#include "widgetlock.h" - -class LogViewerManager; - -template -bool isType(boost::any& a) { - return -#ifdef BOOST_AUX_ANY_TYPE_ID_NAME - std::strcmp(a.type().name(), typeid(ValueType).name()) == 0 -#else - a.type() == typeid(ValueType) -#endif - ; -} - -class ConfigOption { -public: - QString section; - QString option; - //MainWindow::DefaultValueGetter defaultValueGetter; - ConfigOption(QString section_, QString option_/*, DefaultValueGetter defaultValueGetter_*/): - section(section_) - , option(option_) - //, defaultValueGetter(defaultValueGetter_) - {} - -}; - -extern std::string programOptionsWriterCurrentSection; - -class MainWindow; - -class MainWindowItem : public QObject { - Q_OBJECT - ConfigOption option; - QWidget* widgetToFocus; - QString requirementToBeValid; -public: - MainWindowItem(ConfigOption option_, QWidget* widgetToFocus_, QString requirementToBeValid_) : option(option_), widgetToFocus(widgetToFocus_), requirementToBeValid(requirementToBeValid_) {} - QWidget* getWidgetToFocus(){return widgetToFocus;} - QString& getRequirementToBeValid() { return requirementToBeValid; } - ConfigOption& getConfigOption() { return option; } - boost::any optionValue; - virtual ~MainWindowItem(){} - virtual void installListeners(MainWindow *mainWindow); - virtual void loadFromConfigOption(){ - std::string optName=""; - if(!option.section.isEmpty())optName=option.section.toStdString()+std::string("."); - optName+=option.option.toStdString(); - //qDebug() << "loadFromConfigOption[" << optName.c_str() << "]"; - boost::any programOption; - i2p::config::GetOptionAsAny(optName, programOption); - optionValue=programOption.empty()?boost::any(std::string("")) - :boost::any_cast(programOption).value(); - } - virtual void saveToStringStream(std::stringstream& out){ - if(isType(optionValue)) { - std::string v = boost::any_cast(optionValue); - if(v.empty())return; - } - if(optionValue.empty())return; - std::string rtti = optionValue.type().name(); - std::string optName=""; - if(!option.section.isEmpty())optName=option.section.toStdString()+std::string("."); - optName+=option.option.toStdString(); - qDebug() << "Writing option" << optName.c_str() << "of type" << rtti.c_str(); - std::string sectionAsStdStr = option.section.toStdString(); - if(!option.section.isEmpty() && - sectionAsStdStr!=programOptionsWriterCurrentSection) { - out << "[" << sectionAsStdStr << "]\n"; - programOptionsWriterCurrentSection=sectionAsStdStr; - } - out << option.option.toStdString() << "="; - if(isType(optionValue)) { - out << boost::any_cast(optionValue); - }else if(isType(optionValue)) { - out << (boost::any_cast(optionValue) ? "true" : "false"); - }else if(isType(optionValue)) { - out << boost::any_cast(optionValue); - }else if(isType(optionValue)) { - out << boost::any_cast(optionValue); - }else if(isType(optionValue)) { - out << boost::any_cast(optionValue); - }else if(isType(optionValue)) { - out << boost::any_cast(optionValue); - }else out << boost::any_cast(optionValue); //let it throw - out << "\n\n"; - } - virtual bool isValid(){return true;} -}; -class NonGUIOptionItem : public MainWindowItem { -public: - NonGUIOptionItem(ConfigOption option_) : MainWindowItem(option_, nullptr, QString()) {}; - virtual ~NonGUIOptionItem(){} - virtual bool isValid() { return true; } -}; -class BaseStringItem : public MainWindowItem { - Q_OBJECT -public: - QLineEdit* lineEdit; - BaseStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString requirementToBeValid_) : MainWindowItem(option_, lineEdit_, requirementToBeValid_), lineEdit(lineEdit_){}; - virtual ~BaseStringItem(){} - virtual void installListeners(MainWindow *mainWindow); - virtual QString toString(){ - return boost::any_cast(optionValue).c_str(); - } - virtual boost::any fromString(QString s){return boost::any(s.toStdString());} - virtual void loadFromConfigOption(){ - MainWindowItem::loadFromConfigOption(); - lineEdit->setText(toString()); - } - - virtual void saveToStringStream(std::stringstream& out){ - optionValue=fromString(lineEdit->text()); - MainWindowItem::saveToStringStream(out); - } - virtual bool isValid() { return true; } -}; -class FileOrFolderChooserItem : public BaseStringItem { -public: - QPushButton* browsePushButton; - FileOrFolderChooserItem(ConfigOption option_, QLineEdit* lineEdit_, QPushButton* browsePushButton_) : - BaseStringItem(option_, lineEdit_, QString()), browsePushButton(browsePushButton_) {} - virtual ~FileOrFolderChooserItem(){} -}; -class FileChooserItem : public FileOrFolderChooserItem { - Q_OBJECT -private slots: - void pushButtonReleased(); -public: - FileChooserItem(ConfigOption option_, QLineEdit* lineEdit_, QPushButton* browsePushButton_) : - FileOrFolderChooserItem(option_, lineEdit_, browsePushButton_) { - QObject::connect(browsePushButton, SIGNAL(released()), this, SLOT(pushButtonReleased())); - } -}; -class FolderChooserItem : public FileOrFolderChooserItem{ - Q_OBJECT -private slots: - void pushButtonReleased(); -public: - FolderChooserItem(ConfigOption option_, QLineEdit* lineEdit_, QPushButton* browsePushButton_) : - FileOrFolderChooserItem(option_, lineEdit_, browsePushButton_) { - QObject::connect(browsePushButton, SIGNAL(released()), this, SLOT(pushButtonReleased())); - } -}; -class ComboBoxItem : public MainWindowItem { -public: - QComboBox* comboBox; - ComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : MainWindowItem(option_,comboBox_,QString()), comboBox(comboBox_){}; - virtual ~ComboBoxItem(){} - virtual void installListeners(MainWindow *mainWindow); - virtual void loadFromConfigOption()=0; - virtual void saveToStringStream(std::stringstream& out)=0; - virtual bool isValid() { return true; } -}; -class LogDestinationComboBoxItem : public ComboBoxItem { -public: - LogDestinationComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : - ComboBoxItem(option_, comboBox_) {} - virtual ~LogDestinationComboBoxItem(){} - virtual void loadFromConfigOption(){ - MainWindowItem::loadFromConfigOption(); - const char * ld = boost::any_cast(optionValue).c_str(); - comboBox->setCurrentText(QString(ld)); - } - virtual void saveToStringStream(std::stringstream& out){ - std::string logDest = comboBox->currentText().toStdString(); - optionValue=logDest; - MainWindowItem::saveToStringStream(out); - } - virtual bool isValid() { return true; } - - Q_OBJECT -}; -class LogLevelComboBoxItem : public ComboBoxItem { -public: - LogLevelComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : ComboBoxItem(option_, comboBox_) {}; - virtual ~LogLevelComboBoxItem(){} - virtual void loadFromConfigOption(){ - MainWindowItem::loadFromConfigOption(); - const char * ll = boost::any_cast(optionValue).c_str(); - comboBox->setCurrentText(QString(ll)); - } - virtual void saveToStringStream(std::stringstream& out){ - optionValue=comboBox->currentText().toStdString(); - MainWindowItem::saveToStringStream(out); - } - virtual bool isValid() { return true; } -}; -class SignatureTypeComboBoxItem : public ComboBoxItem { -public: - SignatureTypeComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : ComboBoxItem(option_, comboBox_) {}; - virtual ~SignatureTypeComboBoxItem(){} - virtual void loadFromConfigOption(){ - MainWindowItem::loadFromConfigOption(); - while(comboBox->count()>0)comboBox->removeItem(0); - uint16_t selected = (uint16_t) boost::any_cast(optionValue); - SignatureTypeComboBoxFactory::fillComboBox(comboBox, selected); - } - virtual void saveToStringStream(std::stringstream& out){ - uint16_t selected = SignatureTypeComboBoxFactory::getSigType(comboBox->currentData()); - optionValue=(unsigned short)selected; - MainWindowItem::saveToStringStream(out); - } - virtual bool isValid() { return true; } -}; -class CheckBoxItem : public MainWindowItem { -public: - QCheckBox* checkBox; - CheckBoxItem(ConfigOption option_, QCheckBox* checkBox_) : MainWindowItem(option_,checkBox_,QString()), checkBox(checkBox_){}; - virtual ~CheckBoxItem(){} - virtual void installListeners(MainWindow *mainWindow); - virtual void loadFromConfigOption(){ - MainWindowItem::loadFromConfigOption(); - checkBox->setChecked(boost::any_cast(optionValue)); - } - virtual void saveToStringStream(std::stringstream& out){ - optionValue=checkBox->isChecked(); - MainWindowItem::saveToStringStream(out); - } - virtual bool isValid() { return true; } -}; -class BaseFormattedStringItem : public BaseStringItem { -public: - QString fieldNameTranslated; - BaseFormattedStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_, QString requirementToBeValid_) : - BaseStringItem(option_, lineEdit_, requirementToBeValid_), fieldNameTranslated(fieldNameTranslated_) {}; - virtual ~BaseFormattedStringItem(){} - virtual bool isValid()=0; -}; -class IntegerStringItem : public BaseFormattedStringItem { -public: - IntegerStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be a valid integer.")) {}; - virtual ~IntegerStringItem(){} - virtual bool isValid(){ - auto str=lineEdit->text(); - bool ok; - str.toInt(&ok); - return ok; - } - virtual QString toString(){return QString::number(boost::any_cast(optionValue));} - virtual boost::any fromString(QString s){return boost::any(std::stoi(s.toStdString()));} -}; -class UShortStringItem : public BaseFormattedStringItem { -public: - UShortStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned short integer.")) {}; - virtual ~UShortStringItem(){} - virtual bool isValid(){ - auto str=lineEdit->text(); - bool ok; - str.toUShort(&ok); - return ok; - } - virtual QString toString(){return QString::number(boost::any_cast(optionValue));} - virtual boost::any fromString(QString s){return boost::any((unsigned short)std::stoi(s.toStdString()));} -}; -class UInt32StringItem : public BaseFormattedStringItem { -public: - UInt32StringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned 32-bit integer.")) {}; - virtual ~UInt32StringItem(){} - virtual bool isValid(){ - auto str=lineEdit->text(); - bool ok; - str.toUInt(&ok); - return ok; - } - virtual QString toString(){return QString::number(boost::any_cast(optionValue));} - virtual boost::any fromString(QString s){return boost::any((uint32_t)std::stoi(s.toStdString()));} -}; -class UInt16StringItem : public BaseFormattedStringItem { -public: - UInt16StringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned 16-bit integer.")) {}; - virtual ~UInt16StringItem(){} - virtual bool isValid(){ - auto str=lineEdit->text(); - bool ok; - str.toUShort(&ok); - return ok; - } - virtual QString toString(){return QString::number(boost::any_cast(optionValue));} - virtual boost::any fromString(QString s){return boost::any((uint16_t)std::stoi(s.toStdString()));} -}; -class IPAddressStringItem : public BaseFormattedStringItem { -public: - IPAddressStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be an IPv4 address")) {}; - virtual bool isValid(){return true;}//todo -}; -class TCPPortStringItem : public UShortStringItem { -public: - TCPPortStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) : - UShortStringItem(option_, lineEdit_, fieldNameTranslated_) {}; -}; - -namespace Ui { - class MainWindow; - class StatusButtonsForm; - class routerCommandsWidget; - class GeneralSettingsContentsForm; -} - -using namespace i2p::client; - -class TunnelPane; - -using namespace i2p::qt; - -class Controller; - -class MainWindow : public QMainWindow { - Q_OBJECT -private: - std::shared_ptr logStream; -public: - explicit MainWindow(std::shared_ptr logStream_, QWidget *parent=nullptr); - ~MainWindow(); - - void setI2PController(i2p::qt::Controller* controller_); - - void highlightWrongInput(QString warningText, QWidget* widgetToFocus); - - //typedef std::function DefaultValueGetter; - -//#ifndef ANDROID -// void setVisible(bool visible); -//#endif - -private: - enum StatusPage {main_page, commands, local_destinations, leasesets, tunnels, transit_tunnels, - transports, i2p_tunnels, sam_sessions}; -private slots: - void updated(); - - void handleQuitButton(); - void handleGracefulQuitButton(); - void handleDoRestartButton(); - void handleGracefulQuitTimerEvent(); -#ifndef ANDROID - void setIcon(); - void iconActivated(QSystemTrayIcon::ActivationReason reason); - void toggleVisibilitySlot(); -#endif - void scheduleStatusPageUpdates(); - void statusHtmlPageMouseReleased(); - void statusHtmlPageSelectionChanged(); - void updateStatusPage(); - - void showStatusMainPage(); - void showStatus_commands_Page(); - void runPeerTest(); - void enableTransit(); - void disableTransit(); -public slots: - void showStatus_local_destinations_Page(); - void showStatus_leasesets_Page(); - void showStatus_tunnels_Page(); - void showStatus_transit_tunnels_Page(); - void showStatus_transports_Page(); - void showStatus_i2p_tunnels_Page(); - void showStatus_sam_sessions_Page(); - - void showLogViewerPage(); - void showSettingsPage(); - void showTunnelsPage(); - void showRestartPage(); - void showQuitPage(); - -private: - StatusPage statusPage; - QTimer * statusPageUpdateTimer; - bool wasSelectingAtStatusMainPage; - bool showHiddenInfoStatusMainPage; - - LogViewerManager *logViewerManagerPtr; - - void showStatusPage(StatusPage newStatusPage); -#ifndef ANDROID - void createActions(); - void createTrayIcon(); - bool quitting; - QAction *toggleWindowVisibleAction; - QSystemTrayIcon *trayIcon; - QMenu *trayIconMenu; -#endif - -public: - Ui::MainWindow* ui; - Ui::StatusButtonsForm* statusButtonsUI; - Ui::routerCommandsWidget* routerCommandsUI; - Ui::GeneralSettingsContentsForm* uiSettings; - void adjustSizesAccordingToWrongLabel(); - bool applyTunnelsUiToConfigs(); -private: - int settingsTitleLabelNominalHeight; - TextBrowserTweaked1 * textBrowser; - QWidget * routerCommandsParent; - PageWithBackButton * pageWithBackButton; - TextBrowserTweaked1 * childTextBrowser; - - widgetlockregistry widgetlocks; - - i2p::qt::Controller* i2pController; - -protected: - - void updateRouterCommandsButtons(); - -#ifndef ANDROID - void closeEvent(QCloseEvent *event); -#endif - void resizeEvent(QResizeEvent* event); - void onResize(); - - void setStatusButtonsVisible(bool visible); - - QString getStatusPageHtml(bool showHiddenInfo); - - QList configItems; - NonGUIOptionItem* daemonOption; - NonGUIOptionItem* serviceOption; - //LogDestinationComboBoxItem* logOption; - FileChooserItem* logFileNameOption; - - FileChooserItem* initFileChooser(ConfigOption option, QLineEdit* fileNameLineEdit, QPushButton* fileBrowsePushButton); - void initFolderChooser(ConfigOption option, QLineEdit* folderLineEdit, QPushButton* folderBrowsePushButton); - //void initCombobox(ConfigOption option, QComboBox* comboBox); - void initLogDestinationCombobox(ConfigOption option, QComboBox* comboBox); - void initLogLevelCombobox(ConfigOption option, QComboBox* comboBox); - void initSignatureTypeCombobox(ConfigOption option, QComboBox* comboBox); - void initIPAddressBox(ConfigOption option, QLineEdit* addressLineEdit, QString fieldNameTranslated); - void initTCPPortBox(ConfigOption option, QLineEdit* portLineEdit, QString fieldNameTranslated); - void initCheckBox(ConfigOption option, QCheckBox* checkBox); - void initIntegerBox(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated); - void initUInt32Box(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated); - void initUInt16Box(ConfigOption option, QLineEdit* numberLineEdit, QString fieldNameTranslated); - void initStringBox(ConfigOption option, QLineEdit* lineEdit); - NonGUIOptionItem* initNonGUIOption(ConfigOption option); - - void loadAllConfigs(); - -public slots: - /** returns false iff not valid items present and save was aborted */ - bool saveAllConfigs(); - void SaveTunnelsConfig(); - void reloadTunnelsConfigAndUI(std::string tunnelNameToFocus); - - //focus none - void reloadTunnelsConfigAndUI() { reloadTunnelsConfigAndUI(""); } - void addServerTunnelPushButtonReleased(); - void addClientTunnelPushButtonReleased(); - - void anchorClickedHandler(const QUrl & link); - void backClickedFromChild(); - - void logDestinationComboBoxValueChanged(const QString & text); - -private: - QString datadir; - QString confpath; - QString tunconfpath; - - std::map tunnelConfigs; - std::list tunnelPanes; - - void appendTunnelForms(std::string tunnelNameToFocus); - void deleteTunnelForms(); - - template - std::string GetI2CPOption (const Section& section, const std::string& name, const Type& value) const - { - return section.second.get (boost::property_tree::ptree::path_type (name, '/'), std::to_string (value)); - } - - template - void ReadI2CPOptions (const Section& section, std::map& options, I2CPParameters& param - /*TODO fill param*/) const - { - std::string _INBOUND_TUNNEL_LENGTH = options[I2CP_PARAM_INBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNEL_LENGTH, DEFAULT_INBOUND_TUNNEL_LENGTH); - param.setInbound_length(QString(_INBOUND_TUNNEL_LENGTH.c_str())); - std::string _OUTBOUND_TUNNEL_LENGTH = options[I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNEL_LENGTH, DEFAULT_OUTBOUND_TUNNEL_LENGTH); - param.setOutbound_length(QString(_OUTBOUND_TUNNEL_LENGTH.c_str())); - std::string _INBOUND_TUNNELS_QUANTITY = options[I2CP_PARAM_INBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_INBOUND_TUNNELS_QUANTITY, DEFAULT_INBOUND_TUNNELS_QUANTITY); - param.setInbound_quantity( QString(_INBOUND_TUNNELS_QUANTITY.c_str())); - std::string _OUTBOUND_TUNNELS_QUANTITY = options[I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY] = GetI2CPOption (section, I2CP_PARAM_OUTBOUND_TUNNELS_QUANTITY, DEFAULT_OUTBOUND_TUNNELS_QUANTITY); - param.setOutbound_quantity(QString(_OUTBOUND_TUNNELS_QUANTITY.c_str())); - std::string _TAGS_TO_SEND = options[I2CP_PARAM_TAGS_TO_SEND] = GetI2CPOption (section, I2CP_PARAM_TAGS_TO_SEND, DEFAULT_TAGS_TO_SEND); - param.setCrypto_tagsToSend(QString(_TAGS_TO_SEND.c_str())); - options[I2CP_PARAM_MIN_TUNNEL_LATENCY] = GetI2CPOption(section, I2CP_PARAM_MIN_TUNNEL_LATENCY, DEFAULT_MIN_TUNNEL_LATENCY);//TODO include into param - options[I2CP_PARAM_MAX_TUNNEL_LATENCY] = GetI2CPOption(section, I2CP_PARAM_MAX_TUNNEL_LATENCY, DEFAULT_MAX_TUNNEL_LATENCY);//TODO include into param - } - - void CreateDefaultI2CPOptions (I2CPParameters& param - /*TODO fill param*/) const - { - const int _INBOUND_TUNNEL_LENGTH = DEFAULT_INBOUND_TUNNEL_LENGTH; - param.setInbound_length(QString::number(_INBOUND_TUNNEL_LENGTH)); - const int _OUTBOUND_TUNNEL_LENGTH = DEFAULT_OUTBOUND_TUNNEL_LENGTH; - param.setOutbound_length(QString::number(_OUTBOUND_TUNNEL_LENGTH)); - const int _INBOUND_TUNNELS_QUANTITY = DEFAULT_INBOUND_TUNNELS_QUANTITY; - param.setInbound_quantity( QString::number(_INBOUND_TUNNELS_QUANTITY)); - const int _OUTBOUND_TUNNELS_QUANTITY = DEFAULT_OUTBOUND_TUNNELS_QUANTITY; - param.setOutbound_quantity(QString::number(_OUTBOUND_TUNNELS_QUANTITY)); - const int _TAGS_TO_SEND = DEFAULT_TAGS_TO_SEND; - param.setCrypto_tagsToSend(QString::number(_TAGS_TO_SEND)); - } - - - void DeleteTunnelNamed(std::string name) { - std::map::const_iterator it=tunnelConfigs.find(name); - if(it!=tunnelConfigs.end()){ - TunnelConfig* tc=it->second; - tunnelConfigs.erase(it); - delete tc; - } - saveAllConfigs(); - reloadTunnelsConfigAndUI(""); - } - - std::string GenerateNewTunnelName() { - int i=1; - while(true){ - std::stringstream name; - name << "name" << i; - const std::string& str=name.str(); - if(tunnelConfigs.find(str)==tunnelConfigs.end())return str; - ++i; - } - } - - void CreateDefaultClientTunnel() {//TODO dedup default values with ReadTunnelsConfig() and with ClientContext.cpp::ReadTunnels () - std::string name=GenerateNewTunnelName(); - std::string type = I2P_TUNNELS_SECTION_TYPE_CLIENT; - std::string dest = "127.0.0.1"; - int port = 0; - std::string keys = ""; - std::string address = "127.0.0.1"; - int destinationPort = 0; - i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256; - // I2CP - I2CPParameters i2cpParameters; - CreateDefaultI2CPOptions (i2cpParameters); - - tunnelConfigs[name]=new ClientTunnelConfig(name, QString(type.c_str()), i2cpParameters, - dest, - port, - keys, - address, - destinationPort, - sigType); - - saveAllConfigs(); - reloadTunnelsConfigAndUI(name); - } - - void CreateDefaultServerTunnel() {//TODO dedup default values with ReadTunnelsConfig() and with ClientContext.cpp::ReadTunnels () - std::string name=GenerateNewTunnelName(); - std::string type=I2P_TUNNELS_SECTION_TYPE_SERVER; - std::string host = "127.0.0.1"; - int port = 0; - std::string keys = ""; - int inPort = 0; - std::string accessList = ""; - std::string hostOverride = ""; - std::string webircpass = ""; - bool gzip = true; - i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256; - std::string address = "127.0.0.1"; - bool isUniqueLocal = true; - - // I2CP - I2CPParameters i2cpParameters; - CreateDefaultI2CPOptions (i2cpParameters); - - tunnelConfigs[name]=new ServerTunnelConfig(name, QString(type.c_str()), i2cpParameters, - host, - port, - keys, - inPort, - accessList, - hostOverride, - webircpass, - gzip, - sigType, - address, - isUniqueLocal); - - - saveAllConfigs(); - reloadTunnelsConfigAndUI(name); - } - - void ReadTunnelsConfig() //TODO deduplicate the code with ClientContext.cpp::ReadTunnels () - { - boost::property_tree::ptree pt; - std::string tunConf=tunconfpath.toStdString(); - if (tunConf == "") { - // TODO: cleanup this in 2.8.0 - tunConf = i2p::fs::DataDirPath ("tunnels.cfg"); - if (i2p::fs::Exists(tunConf)) { - LogPrint(eLogWarning, "FS: please rename tunnels.cfg -> tunnels.conf here: ", tunConf); - } else { - tunConf = i2p::fs::DataDirPath ("tunnels.conf"); - } - } - LogPrint(eLogDebug, "tunnels config file: ", tunConf); - try - { - boost::property_tree::read_ini (tunConf, pt); - } - catch (std::exception& ex) - { - LogPrint (eLogWarning, "Clients: Can't read ", tunConf, ": ", ex.what ());//TODO show err box and disable tunn.page - return; - } - - for (auto& section: pt) - { - std::string name = section.first; - try - { - std::string type = section.second.get (I2P_TUNNELS_SECTION_TYPE); - if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT - || type == I2P_TUNNELS_SECTION_TYPE_SOCKS - || type == I2P_TUNNELS_SECTION_TYPE_WEBSOCKS - || type == I2P_TUNNELS_SECTION_TYPE_HTTPPROXY - || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) - { - // mandatory params - std::string dest; - if (type == I2P_TUNNELS_SECTION_TYPE_CLIENT || type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) { - dest = section.second.get (I2P_CLIENT_TUNNEL_DESTINATION); - std::cout << "had read tunnel dest: " << dest << std::endl; - } - int port = section.second.get (I2P_CLIENT_TUNNEL_PORT); - std::cout << "had read tunnel port: " << port << std::endl; - // optional params - std::string keys = section.second.get (I2P_CLIENT_TUNNEL_KEYS, ""); - std::string address = section.second.get (I2P_CLIENT_TUNNEL_ADDRESS, "127.0.0.1"); - int destinationPort = section.second.get(I2P_CLIENT_TUNNEL_DESTINATION_PORT, 0); - std::cout << "had read tunnel destinationPort: " << destinationPort << std::endl; - i2p::data::SigningKeyType sigType = section.second.get (I2P_CLIENT_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256); - // I2CP - std::map options; - I2CPParameters i2cpParameters; - ReadI2CPOptions (section, options, i2cpParameters); - - tunnelConfigs[name]=new ClientTunnelConfig(name, QString(type.c_str()), i2cpParameters, - dest, - port, - keys, - address, - destinationPort, - sigType); - } - else if (type == I2P_TUNNELS_SECTION_TYPE_SERVER - || type == I2P_TUNNELS_SECTION_TYPE_HTTP - || type == I2P_TUNNELS_SECTION_TYPE_IRC - || type == I2P_TUNNELS_SECTION_TYPE_UDPSERVER) - { - // mandatory params - std::string host = section.second.get (I2P_SERVER_TUNNEL_HOST); - int port = section.second.get (I2P_SERVER_TUNNEL_PORT); - // optional params - std::string keys = section.second.get (I2P_SERVER_TUNNEL_KEYS, ""); - int inPort = section.second.get (I2P_SERVER_TUNNEL_INPORT, 0); - std::string accessList = section.second.get (I2P_SERVER_TUNNEL_ACCESS_LIST, ""); - std::string hostOverride = section.second.get (I2P_SERVER_TUNNEL_HOST_OVERRIDE, ""); - std::string webircpass = section.second.get (I2P_SERVER_TUNNEL_WEBIRC_PASSWORD, ""); - bool gzip = section.second.get (I2P_SERVER_TUNNEL_GZIP, true); - i2p::data::SigningKeyType sigType = section.second.get (I2P_SERVER_TUNNEL_SIGNATURE_TYPE, i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256); - std::string address = section.second.get (I2P_SERVER_TUNNEL_ADDRESS, "127.0.0.1"); - bool isUniqueLocal = section.second.get(I2P_SERVER_TUNNEL_ENABLE_UNIQUE_LOCAL, true); - - // I2CP - std::map options; - I2CPParameters i2cpParameters; - ReadI2CPOptions (section, options, i2cpParameters); - - /* - std::set idents; - if (accessList.length () > 0) - { - size_t pos = 0, comma; - do - { - comma = accessList.find (',', pos); - i2p::data::IdentHash ident; - ident.FromBase32 (accessList.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos)); - idents.insert (ident); - pos = comma + 1; - } - while (comma != std::string::npos); - } - */ - tunnelConfigs[name]=new ServerTunnelConfig(name, QString(type.c_str()), i2cpParameters, - host, - port, - keys, - inPort, - accessList, - hostOverride, - webircpass, - gzip, - sigType, - address, - isUniqueLocal); - } - else - LogPrint (eLogWarning, "Clients: Unknown section type=", type, " of ", name, " in ", tunConf);//TODO show err box and disable the tunn gui - - } - catch (std::exception& ex) - { - LogPrint (eLogError, "Clients: Can't read tunnel ", name, " params: ", ex.what ());//TODO show err box and disable the tunn gui - } - } - } - -private: - class TunnelsPageUpdateListenerMainWindowImpl : public TunnelsPageUpdateListener { - MainWindow* mainWindow; - public: - TunnelsPageUpdateListenerMainWindowImpl(MainWindow* mainWindow_):mainWindow(mainWindow_){} - virtual void updated(std::string oldName, TunnelConfig* tunConf); - virtual void needsDeleting(std::string oldName); - }; - - TunnelsPageUpdateListenerMainWindowImpl tunnelsPageUpdateListener; - - void onLoggingOptionsChange() {} -}; - -#endif // MAINWINDOW_H diff --git a/qt/i2pd_qt/mainwindow.ui b/qt/i2pd_qt/mainwindow.ui deleted file mode 100644 index dcdf88bd..00000000 --- a/qt/i2pd_qt/mainwindow.ui +++ /dev/null @@ -1,1026 +0,0 @@ - - - MainWindow - - - - 0 - 0 - 908 - 554 - - - - - 908 - 0 - - - - - 908 - 16777215 - - - - MainWindow - - - - - 0 - 0 - - - - - 908 - 550 - - - - - 908 - 550 - - - - - - 10 - 10 - 888 - 531 - - - - - QLayout::SetMaximumSize - - - - - QLayout::SetMinimumSize - - - - 0 - 0 - 170 - 496 - - - - - - true - - - Status - - - - - - - - 0 - 0 - - - - - 172 - 0 - - - - - - - - Log - - - - - - - true - - - General settings - - - - - - - true - - - Tunnels settings - - - - - - - true - - - Restart - - - - - - - true - - - Quit - - - - - - - Qt::Horizontal - - - QSizePolicy::Fixed - - - - 171 - 0 - - - - - - - - Qt::Vertical - - - - 20 - 40 - - - - - - - - - - QLayout::SetMinAndMaxSize - - - - - - 0 - 30 - - - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 255 - 127 - 127 - - - - - - - 255 - 63 - 63 - - - - - - - 127 - 0 - 0 - - - - - - - 170 - 0 - 0 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 255 - 255 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 255 - 255 - - - - - - - 255 - 0 - 0 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 127 - 127 - - - - - - - 255 - 255 - 220 - - - - - - - 0 - 0 - 0 - - - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 255 - 127 - 127 - - - - - - - 255 - 63 - 63 - - - - - - - 127 - 0 - 0 - - - - - - - 170 - 0 - 0 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 255 - 255 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 255 - 255 - - - - - - - 255 - 0 - 0 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 127 - 127 - - - - - - - 255 - 255 - 220 - - - - - - - 0 - 0 - 0 - - - - - - - - - 127 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 255 - 127 - 127 - - - - - - - 255 - 63 - 63 - - - - - - - 127 - 0 - 0 - - - - - - - 170 - 0 - 0 - - - - - - - 127 - 0 - 0 - - - - - - - 255 - 255 - 255 - - - - - - - 127 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 0 - 0 - 0 - - - - - - - 255 - 0 - 0 - - - - - - - 255 - 255 - 220 - - - - - - - 0 - 0 - 0 - - - - - - - - wrongInputMessageLabel - - - true - - - 10 - - - - - - - - 0 - 0 - - - - - 0 - 0 - - - - - 713 - 713 - - - - 1 - - - - - 0 - 0 - - - - - - 0 - 0 - 713 - 531 - - - - - QLayout::SetMaximumSize - - - - - - 15 - - - - Status - - - - - - - QLayout::SetMaximumSize - - - - - - - - - - 0 - 0 - - - - - - 0 - 0 - 711 - 531 - - - - - QLayout::SetMinAndMaxSize - - - - - - 15 - - - - Log - - - - - - - - 0 - 0 - - - - Qt::ScrollBarAlwaysOn - - - Qt::ScrollBarAsNeeded - - - QAbstractScrollArea::AdjustIgnored - - - 10000 - - - false - - - true - - - - - - - - - - 0 - 0 - - - - - - 0 - 0 - 711 - 531 - - - - - QLayout::SetMinAndMaxSize - - - - - - 15 - - - - General settings - - - - - - - - 0 - 0 - - - - Qt::ScrollBarAlwaysOn - - - Qt::ScrollBarAsNeeded - - - QAbstractScrollArea::AdjustIgnored - - - true - - - - - 0 - 0 - 81 - 28 - - - - - 0 - 0 - - - - - - - - - - - - - 0 - 0 - 711 - 531 - - - - - QLayout::SetMinAndMaxSize - - - - - - 15 - - - - Tunnels settings - - - - - - - - - Add Client Tunnel - - - - - - - Add Server Tunnel - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - Qt::ScrollBarAlwaysOn - - - false - - - Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop - - - - - 0 - 0 - 699 - 425 - - - - - - - - - - - - - 0 - 0 - 711 - 531 - - - - - QLayout::SetMinAndMaxSize - - - - - - 15 - - - - Restart - - - - - - - Restart i2pd - - - - - - - Qt::Vertical - - - - 20 - 40 - - - - - - - - - - - 0 - 0 - - - - - - 0 - 0 - 711 - 531 - - - - - QLayout::SetMinAndMaxSize - - - - - - 15 - - - - Quit - - - - - - - Quit Now - - - - - - - Graceful Quit - - - - - - - Qt::Vertical - - - - 20 - 40 - - - - - - - - - - - - - - - - - - - - handleQuitButton() - handleGracefulQuitButton() - - diff --git a/qt/i2pd_qt/pagewithbackbutton.cpp b/qt/i2pd_qt/pagewithbackbutton.cpp deleted file mode 100644 index bc297ac2..00000000 --- a/qt/i2pd_qt/pagewithbackbutton.cpp +++ /dev/null @@ -1,24 +0,0 @@ -#include "pagewithbackbutton.h" -#include "QVBoxLayout" -#include "QHBoxLayout" -#include "QPushButton" - -PageWithBackButton::PageWithBackButton(QWidget *parent, QWidget* child) : QWidget(parent) -{ - QVBoxLayout * layout = new QVBoxLayout(); - setLayout(layout); - QWidget * topBar = new QWidget(); - QHBoxLayout * topBarLayout = new QHBoxLayout(); - topBar->setLayout(topBarLayout); - layout->addWidget(topBar); - layout->addWidget(child); - - QPushButton * backButton = new QPushButton(topBar); - backButton->setText("< Back"); - topBarLayout->addWidget(backButton); - connect(backButton, SIGNAL(released()), this, SLOT(backReleasedSlot())); -} - -void PageWithBackButton::backReleasedSlot() { - emit backReleased(); -} diff --git a/qt/i2pd_qt/pagewithbackbutton.h b/qt/i2pd_qt/pagewithbackbutton.h deleted file mode 100644 index 60779f80..00000000 --- a/qt/i2pd_qt/pagewithbackbutton.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef PAGEWITHBACKBUTTON_H -#define PAGEWITHBACKBUTTON_H - -#include - -class PageWithBackButton : public QWidget -{ - Q_OBJECT -public: - explicit PageWithBackButton(QWidget *parent, QWidget* child); - -signals: - - void backReleased(); - -private slots: - - void backReleasedSlot(); -}; - -#endif // PAGEWITHBACKBUTTON_H diff --git a/qt/i2pd_qt/resources/icons/mask.ico b/qt/i2pd_qt/resources/icons/mask.ico deleted file mode 100644 index f5807de5..00000000 Binary files a/qt/i2pd_qt/resources/icons/mask.ico and /dev/null differ diff --git a/qt/i2pd_qt/resources/images/icon.png b/qt/i2pd_qt/resources/images/icon.png deleted file mode 100644 index a5dc7b68..00000000 Binary files a/qt/i2pd_qt/resources/images/icon.png and /dev/null differ diff --git a/qt/i2pd_qt/routercommandswidget.ui b/qt/i2pd_qt/routercommandswidget.ui deleted file mode 100644 index c5098e8e..00000000 --- a/qt/i2pd_qt/routercommandswidget.ui +++ /dev/null @@ -1,127 +0,0 @@ - - - routerCommandsWidget - - - - 0 - 0 - 711 - 300 - - - - - 0 - 0 - - - - Form - - - - - 0 - 0 - 711 - 301 - - - - - QLayout::SetMaximumSize - - - - - - 0 - 0 - - - - - 75 - true - - - - Router Commands - - - - - - - - 0 - 0 - - - - Run peer test - - - - - - - - 0 - 0 - - - - Decline transit tunnels - - - - - - - - 0 - 0 - - - - Accept transit tunnels - - - - - - - false - - - - 0 - 0 - - - - Cancel graceful quit - - - - - - - Qt::Vertical - - - - 20 - 40 - - - - - - - - - - diff --git a/qt/i2pd_qt/statusbuttons.ui b/qt/i2pd_qt/statusbuttons.ui deleted file mode 100644 index edf5a90c..00000000 --- a/qt/i2pd_qt/statusbuttons.ui +++ /dev/null @@ -1,163 +0,0 @@ - - - StatusButtonsForm - - - - 0 - 0 - 171 - 295 - - - - - 0 - 0 - - - - - 171 - 295 - - - - Form - - - - - 21 - 0 - 171 - 300 - - - - - QLayout::SetDefaultConstraint - - - - - - 150 - 16777215 - - - - Main page - - - - - - - - 150 - 16777215 - - - - Router commands - - - - - - - - 150 - 16777215 - - - - Local destinations - - - - - - - - 150 - 16777215 - - - - Leasesets - - - - - - - - 150 - 16777215 - - - - Tunnels - - - - - - - - 150 - 16777215 - - - - Transit tunnels - - - - - - - - 150 - 16777215 - - - - Transports - - - - - - - - 150 - 16777215 - - - - I2P tunnels - - - - - - - - 150 - 16777215 - - - - SAM sessions - - - - - - - - - diff --git a/qt/i2pd_qt/textbrowsertweaked1.cpp b/qt/i2pd_qt/textbrowsertweaked1.cpp deleted file mode 100644 index f8802061..00000000 --- a/qt/i2pd_qt/textbrowsertweaked1.cpp +++ /dev/null @@ -1,9 +0,0 @@ -#include "textbrowsertweaked1.h" - -TextBrowserTweaked1::TextBrowserTweaked1(QWidget * parent): QTextBrowser(parent) -{ -} - -/*void TextBrowserTweaked1::setSource(const QUrl & url) { - emit navigatedTo(url); -}*/ diff --git a/qt/i2pd_qt/textbrowsertweaked1.h b/qt/i2pd_qt/textbrowsertweaked1.h deleted file mode 100644 index 288a3c32..00000000 --- a/qt/i2pd_qt/textbrowsertweaked1.h +++ /dev/null @@ -1,26 +0,0 @@ -#ifndef TEXTBROWSERTWEAKED1_H -#define TEXTBROWSERTWEAKED1_H - -#include -#include - -class TextBrowserTweaked1 : public QTextBrowser -{ - Q_OBJECT - -public: - TextBrowserTweaked1(QWidget * parent); - //virtual void setSource(const QUrl & url); - -signals: - void mouseReleased(); - //void navigatedTo(const QUrl & link); - -protected: - void mouseReleaseEvent(QMouseEvent *event) { - QTextBrowser::mouseReleaseEvent(event); - emit mouseReleased(); - } -}; - -#endif // TEXTBROWSERTWEAKED1_H diff --git a/qt/i2pd_qt/tunnelform.ui b/qt/i2pd_qt/tunnelform.ui deleted file mode 100644 index 61e54770..00000000 --- a/qt/i2pd_qt/tunnelform.ui +++ /dev/null @@ -1,104 +0,0 @@ - - - Form - - - - 0 - 0 - 527 - 452 - - - - Form - - - - - 0 - 0 - 521 - 451 - - - - - - - server_tunnel_name - - - - - 0 - 20 - 511 - 421 - - - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - Delete - - - - - - - - - - - Host: - - - - - - - - - - Qt::Horizontal - - - - 40 - 20 - - - - - - - - - - - - - - - - diff --git a/qt/i2pd_qt/widgetlock.cpp b/qt/i2pd_qt/widgetlock.cpp deleted file mode 100644 index a601fb36..00000000 --- a/qt/i2pd_qt/widgetlock.cpp +++ /dev/null @@ -1 +0,0 @@ -#include "widgetlock.h" diff --git a/qt/i2pd_qt/widgetlock.h b/qt/i2pd_qt/widgetlock.h deleted file mode 100644 index 5b21125c..00000000 --- a/qt/i2pd_qt/widgetlock.h +++ /dev/null @@ -1,35 +0,0 @@ -#ifndef WIDGETLOCK_H -#define WIDGETLOCK_H - -#include -#include -#include -#include - -class widgetlock : public QObject { - Q_OBJECT - -private: - QWidget* widget; - QPushButton* lockButton; - -public slots: - void lockButtonClicked(bool) { - bool wasEnabled = widget->isEnabled(); - widget->setEnabled(!wasEnabled); - lockButton->setText(widget->isEnabled()?lockButton->tr("Lock"):lockButton->tr("Edit")); - } - -public: - widgetlock(QWidget* widget_, QPushButton* lockButton_): widget(widget_),lockButton(lockButton_) { - widget->setEnabled(false); - lockButton->setText(lockButton->tr("Edit")); - QObject::connect(lockButton,SIGNAL(clicked(bool)), this, SLOT(lockButtonClicked(bool))); - } - virtual ~widgetlock() {} - void deleteListener() { - QObject::disconnect(lockButton,SIGNAL(clicked(bool)), this, SLOT(lockButtonClicked(bool))); - } -}; - -#endif // WIDGETLOCK_H diff --git a/qt/i2pd_qt/widgetlockregistry.cpp b/qt/i2pd_qt/widgetlockregistry.cpp deleted file mode 100644 index 0d66d327..00000000 --- a/qt/i2pd_qt/widgetlockregistry.cpp +++ /dev/null @@ -1,2 +0,0 @@ -#include "widgetlockregistry.h" - diff --git a/qt/i2pd_qt/widgetlockregistry.h b/qt/i2pd_qt/widgetlockregistry.h deleted file mode 100644 index 78ee142a..00000000 --- a/qt/i2pd_qt/widgetlockregistry.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef WIDGETLOCKREGISTRY_H -#define WIDGETLOCKREGISTRY_H - -#include -#include - -class widgetlockregistry { - std::vector locks; - -public: - widgetlockregistry() : locks() {} - virtual ~widgetlockregistry() {} - void add(widgetlock* lock) { - locks.push_back(lock); - } - - void deleteListeners() { - while(!locks.empty()) { - widgetlock* lock = locks.back(); - lock->deleteListener(); - delete lock; - locks.pop_back(); - } - } -}; - -#endif // WIDGETLOCKREGISTRY_H diff --git a/tests/.gitignore b/tests/.gitignore new file mode 100644 index 00000000..90457c23 --- /dev/null +++ b/tests/.gitignore @@ -0,0 +1,12 @@ +/test-http-merge_chunked +/test-http-req +/test-http-res +/test-http-url +/test-http-url_decode +/test-gost +/test-gost-sig +/test-base-64 +/test-x25519 +/test-aeadchacha20poly1305 +/test-blinding +/test-elligator diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt new file mode 100644 index 00000000..fb03d434 --- /dev/null +++ b/tests/CMakeLists.txt @@ -0,0 +1,123 @@ +enable_testing() +find_package(Check 0.9.10 REQUIRED) +include_directories(${CHECK_INCLUDE_DIRS}) + +# Compiler flags: +if(APPLE) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -g -Wl,-undefined,dynamic_lookup") +else() + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -g -Wl,--unresolved-symbols=ignore-in-object-files") +endif() + +set(TEST_PATH ${CMAKE_CURRENT_BINARY_DIR}) + +include_directories( + ../libi2pd + ${Boost_INCLUDE_DIRS} + ${OPENSSL_INCLUDE_DIR} +) + +set(test-http-merge_chunked_SRCS + test-http-merge_chunked.cpp +) + +set(test-http-req_SRCS + test-http-req.cpp +) + +set(test-http-res_SRCS + test-http-res.cpp +) + +set(test-http-url_decode_SRCS + test-http-url_decode.cpp +) + +set(test-http-url_SRCS + test-http-url.cpp +) + +set(test-base-64_SRCS + test-base-64.cpp +) + +set(test-gost_SRCS + test-gost.cpp +) + +set(test-gost-sig_SRCS + test-gost-sig.cpp +) + +set(test-aeadchacha20poly1305_SRCS + test-aeadchacha20poly1305.cpp +) + +set(test-blinding_SRCS + test-blinding.cpp +) + +SET(test-elligator_SRCS + test-elligator.cpp +) + +set(test-eddsa_SRCS + test-eddsa.cpp +) + +set(test-aes_SRCS + test-aes.cpp +) + +add_executable(test-http-merge_chunked ${test-http-merge_chunked_SRCS}) +add_executable(test-http-req ${test-http-req_SRCS}) +add_executable(test-http-res ${test-http-res_SRCS}) +add_executable(test-http-url_decode ${test-http-url_decode_SRCS}) +add_executable(test-http-url ${test-http-url_SRCS}) +add_executable(test-base-64 ${test-base-64_SRCS}) +add_executable(test-gost ${test-gost_SRCS}) +add_executable(test-gost-sig ${test-gost-sig_SRCS}) +add_executable(test-aeadchacha20poly1305 ${test-aeadchacha20poly1305_SRCS}) +add_executable(test-blinding ${test-blinding_SRCS}) +add_executable(test-elligator ${test-elligator_SRCS}) +add_executable(test-eddsa ${test-eddsa_SRCS}) +add_executable(test-aes ${test-aes_SRCS}) + +set(LIBS + libi2pd + ${Boost_LIBRARIES} + OpenSSL::SSL + OpenSSL::Crypto + ZLIB::ZLIB + Threads::Threads + ${CHECK_LDFLAGS} + ${CMAKE_REQUIRED_LIBRARIES} +) + +target_link_libraries(test-http-merge_chunked ${LIBS}) +target_link_libraries(test-http-req ${LIBS}) +target_link_libraries(test-http-res ${LIBS}) +target_link_libraries(test-http-url_decode ${LIBS}) +target_link_libraries(test-http-url ${LIBS}) +target_link_libraries(test-base-64 ${LIBS}) +target_link_libraries(test-gost ${LIBS}) +target_link_libraries(test-gost-sig ${LIBS}) +target_link_libraries(test-aeadchacha20poly1305 ${LIBS}) +target_link_libraries(test-blinding ${LIBS}) +target_link_libraries(test-elligator ${LIBS}) +target_link_libraries(test-eddsa ${LIBS}) +target_link_libraries(test-aes ${LIBS}) + +add_test(test-http-merge_chunked ${TEST_PATH}/test-http-merge_chunked) +add_test(test-http-req ${TEST_PATH}/test-http-req) +add_test(test-http-res ${TEST_PATH}/test-http-res) +add_test(test-http-url_decode ${TEST_PATH}/test-http-url_decode) +add_test(test-http-url ${TEST_PATH}/test-http-url) +add_test(test-base-64 ${TEST_PATH}/test-base-64) +add_test(test-gost ${TEST_PATH}/test-gost) +add_test(test-gost-sig ${TEST_PATH}/test-gost-sig) +add_test(test-aeadchacha20poly1305 ${TEST_PATH}/test-aeadchacha20poly1305) +add_test(test-blinding ${TEST_PATH}/test-blinding) +add_test(test-elligator ${TEST_PATH}/test-elligator) +add_test(test-eddsa ${TEST_PATH}/test-eddsa) +add_test(test-aes ${TEST_PATH}/test-aes) diff --git a/tests/Makefile b/tests/Makefile index 498cff17..b020427d 100644 --- a/tests/Makefile +++ b/tests/Makefile @@ -1,29 +1,66 @@ -CXXFLAGS += -Wall -Wextra -pedantic -O0 -g -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1 -I../libi2pd/ -pthread -Wl,--unresolved-symbols=ignore-in-object-files +SYS := $(shell $(CXX) -dumpmachine) + +CXXFLAGS += -Wall -Wno-unused-parameter -Wextra -pedantic -O0 -g -std=c++17 -D_GLIBCXX_USE_NANOSLEEP=1 -DOPENSSL_SUPPRESS_DEPRECATED -pthread -Wl,--unresolved-symbols=ignore-in-object-files +INCFLAGS += -I../libi2pd + +LIBI2PD = ../libi2pd.a + +TESTS = \ + test-http-merge_chunked test-http-req test-http-res test-http-url test-http-url_decode \ + test-gost test-gost-sig test-base-64 test-aeadchacha20poly1305 test-blinding \ + test-elligator test-eddsa test-aes + +ifneq (, $(findstring mingw, $(SYS))$(findstring windows-gnu, $(SYS))$(findstring cygwin, $(SYS))) + CXXFLAGS += -DWIN32_LEAN_AND_MEAN + LDFLAGS += -mwindows -static + BOOST_SUFFIX = -mt + NEEDED_LDLIBS = -lwsock32 -lws2_32 -lgdi32 -liphlpapi -lole32 +endif + +LDLIBS = \ + -lboost_system$(BOOST_SUFFIX) \ + -lboost_program_options$(BOOST_SUFFIX) \ + -lssl \ + -lcrypto \ + -lz \ + $(NEEDED_LDLIBS) \ + -lpthread -TESTS = test-gost test-gost-sig test-base-64 test-x25519 test-aeadchacha20poly1305 all: $(TESTS) run -test-http-%: ../libi2pd/HTTP.cpp test-http-%.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ +$(LIBI2PD): + @echo "Building libi2pd.a ..." && cd .. && $(MAKE) libi2pd.a -test-base-%: ../libi2pd/Base.cpp test-base-%.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ +test-http-%: test-http-%.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) -test-gost: ../libi2pd/Gost.cpp ../libi2pd/I2PEndian.cpp test-gost.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto +test-base-%: test-base-%.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) -test-gost-sig: ../libi2pd/Gost.cpp ../libi2pd/I2PEndian.cpp ../libi2pd/Crypto.cpp ../libi2pd/Log.cpp test-gost-sig.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto -lssl -lboost_system +test-gost: test-gost.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) -test-x25519: ../libi2pd/Ed25519.cpp ../libi2pd/I2PEndian.cpp ../libi2pd/Log.cpp ../libi2pd/Crypto.cpp test-x25519.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto -lssl -lboost_system +test-gost-sig: test-gost-sig.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) -test-aeadchacha20poly1305: ../libi2pd/Crypto.cpp ../libi2pd/ChaCha20.cpp ../libi2pd/Poly1305.cpp test-aeadchacha20poly1305.cpp - $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto -lssl -lboost_system +test-aeadchacha20poly1305: test-aeadchacha20poly1305.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) + +test-blinding: test-blinding.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) + +test-elligator: test-elligator.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) + +test-eddsa: test-eddsa.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) + +test-aes: test-aes.cpp $(LIBI2PD) + $(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS) run: $(TESTS) - @for TEST in $(TESTS); do ./$$TEST ; done + @for TEST in $(TESTS); do echo Running $$TEST; ./$$TEST ; done clean: rm -f $(TESTS) diff --git a/tests/test-aeadchacha20poly1305.cpp b/tests/test-aeadchacha20poly1305.cpp index de9f1db2..2ba6a253 100644 --- a/tests/test-aeadchacha20poly1305.cpp +++ b/tests/test-aeadchacha20poly1305.cpp @@ -7,28 +7,28 @@ char text[] = "Ladies and Gentlemen of the class of '99: If I could offer you " "only one tip for the future, sunscreen would be it."; // 114 bytes -uint8_t key[32] = +uint8_t key[32] = { 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f }; -uint8_t ad[12] = +uint8_t ad[12] = { 0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7 }; -uint8_t nonce[12] = +uint8_t nonce[12] = { 0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 }; -uint8_t tag[16] = +uint8_t tag[16] = { 0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09, 0xe2, 0x6a, 0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60, 0x06, 0x91 }; -uint8_t encrypted[114] = +uint8_t encrypted[114] = { 0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, 0x7b, 0x86, 0xaf, 0xbc, 0x53, 0xef, 0x7e, 0xc2, 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe, 0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, @@ -43,18 +43,20 @@ uint8_t encrypted[114] = int main () { uint8_t buf[114+16]; + i2p::crypto::AEADChaCha20Poly1305Encryptor encryptor; // test encryption - i2p::crypto::AEADChaCha20Poly1305 ((uint8_t *)text, 114, ad, 12, key, nonce, buf, 114 + 16, true); + encryptor.Encrypt ((uint8_t *)text, 114, ad, 12, key, nonce, buf, 114 + 16); assert (memcmp (buf, encrypted, 114) == 0); assert (memcmp (buf + 114, tag, 16) == 0); // test decryption uint8_t buf1[114]; - assert (i2p::crypto::AEADChaCha20Poly1305 (buf, 114, ad, 12, key, nonce, buf1, 114, false)); + i2p::crypto::AEADChaCha20Poly1305Decryptor decryptor; + assert (decryptor.Decrypt (buf, 114, ad, 12, key, nonce, buf1, 114)); assert (memcmp (buf1, text, 114) == 0); // test encryption of multiple buffers memcpy (buf, text, 114); - std::vector > bufs{ std::make_pair (buf, 20), std::make_pair (buf + 20, 10), std::make_pair (buf + 30, 70), std::make_pair (buf + 100, 14) }; - i2p::crypto::AEADChaCha20Poly1305Encrypt (bufs, key, nonce, buf + 114); - i2p::crypto::AEADChaCha20Poly1305 (buf, 114, nullptr, 0, key, nonce, buf1, 114, false); + std::vector > bufs{ std::make_pair (buf, 20), std::make_pair (buf + 20, 10), std::make_pair (buf + 30, 70), std::make_pair (buf + 100, 14) }; + encryptor.Encrypt (bufs, key, nonce, buf + 114); + decryptor.Decrypt (buf, 114, nullptr, 0, key, nonce, buf1, 114); assert (memcmp (buf1, text, 114) == 0); } diff --git a/tests/test-aes.cpp b/tests/test-aes.cpp new file mode 100644 index 00000000..15f4de1e --- /dev/null +++ b/tests/test-aes.cpp @@ -0,0 +1,69 @@ +#include +#include +#include + +#include "Crypto.h" + +uint8_t ecb_key1[32] = +{ + 0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, 0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81, + 0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, 0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 +}; + +uint8_t ecb_plain1[16] = +{ + 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a +}; + +uint8_t ecb_cipher1[16] = +{ + 0xf3, 0xee, 0xd1, 0xbd, 0xb5, 0xd2, 0xa0, 0x3c, 0x06, 0x4b, 0x5a, 0x7e, 0x3d, 0xb1, 0x81, 0xf8 +}; + +uint8_t cbc_key1[32] = +{ + 0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, 0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81, + 0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, 0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 +}; + +uint8_t cbc_iv1[16] = +{ + 0xF5, 0x8C, 0x4C, 0x04, 0xD6, 0xE5, 0xF1, 0xBA, 0x77, 0x9E, 0xAB, 0xFB, 0x5F, 0x7B, 0xFB, 0xD6 +}; + +uint8_t cbc_plain1[16] = +{ + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51 +}; + +uint8_t cbc_cipher1[16] = +{ + 0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d, 0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d +}; + +int main () +{ + // ECB encrypt test1 + i2p::crypto::ECBEncryption ecbencryption; + ecbencryption.SetKey (ecb_key1); + uint8_t out[16]; + ecbencryption.Encrypt (ecb_plain1, out); + assert (memcmp (ecb_cipher1, out, 16) == 0); + + // ECB decrypt test1 + i2p::crypto::ECBDecryption ecbdecryption; + ecbdecryption.SetKey (ecb_key1); + ecbdecryption.Decrypt (ecb_cipher1, out); + assert (memcmp (ecb_plain1, out, 16) == 0); + // CBC encrypt test + i2p::crypto::CBCEncryption cbcencryption; + cbcencryption.SetKey (cbc_key1); + cbcencryption.Encrypt (cbc_plain1, 16, cbc_iv1, out); + assert (memcmp (cbc_cipher1, out, 16) == 0); + // CBC decrypt test + i2p::crypto::CBCDecryption cbcdecryption; + cbcdecryption.SetKey (cbc_key1); + cbcdecryption.Decrypt (cbc_cipher1, 16, cbc_iv1, out); + assert (memcmp (cbc_plain1, out, 16) == 0); +} + diff --git a/tests/test-blinding.cpp b/tests/test-blinding.cpp new file mode 100644 index 00000000..10b72e4f --- /dev/null +++ b/tests/test-blinding.cpp @@ -0,0 +1,41 @@ +#include +#include +#include +#include "Blinding.h" +#include "Identity.h" +#include "Timestamp.h" + +using namespace i2p::data; +using namespace i2p::util; +using namespace i2p::crypto; + +void BlindTest (SigningKeyType sigType) +{ + auto keys = PrivateKeys::CreateRandomKeys (sigType); + BlindedPublicKey blindedKey (keys.GetPublic ()); + auto timestamp = GetSecondsSinceEpoch (); + char date[9]; + GetDateString (timestamp, date); + uint8_t blindedPriv[32], blindedPub[32]; + auto publicKeyLen = blindedKey.BlindPrivateKey (keys.GetSigningPrivateKey (), date, blindedPriv, blindedPub); + uint8_t blindedPub1[32]; + blindedKey.GetBlindedKey (date, blindedPub1); + // check if public key produced from private blinded key matches blided public key + assert (!memcmp (blindedPub, blindedPub1, publicKeyLen)); + // try to sign and verify + std::unique_ptr blindedSigner (PrivateKeys::CreateSigner (blindedKey.GetBlindedSigType (), blindedPriv)); + uint8_t buf[100], signature[64]; + memset (buf, 1, 100); + blindedSigner->Sign (buf, 100, signature); + std::unique_ptr blindedVerifier (IdentityEx::CreateVerifier (blindedKey.GetBlindedSigType ())); + blindedVerifier->SetPublicKey (blindedPub); + assert (blindedVerifier->Verify (buf, 100, signature)); +} + +int main () +{ + // EdDSA test + BlindTest (SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519); + // RedDSA test + BlindTest (SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519); +} diff --git a/tests/test-eddsa.cpp b/tests/test-eddsa.cpp new file mode 100644 index 00000000..b3895e2b --- /dev/null +++ b/tests/test-eddsa.cpp @@ -0,0 +1,68 @@ +#include +#include +#include + +#include "Signature.h" + +// TEST 1024 from RFC-8032 + +int main () +{ + uint8_t key[32], pub[32], msg[1024], sig[64]; + BIGNUM * input = BN_new(); + BN_hex2bn(&input, "f5e5767cf153319517630f226876b86c8160cc583bc013744c6bf255f5cc0ee5"); + BN_bn2bin(input, key); + BN_hex2bn(&input, + "08b8b2b733424243760fe426a4b54908632110a66c2f6591eabd3345e3e4eb98" + "fa6e264bf09efe12ee50f8f54e9f77b1e355f6c50544e23fb1433ddf73be84d8" + "79de7c0046dc4996d9e773f4bc9efe5738829adb26c81b37c93a1b270b20329d" + "658675fc6ea534e0810a4432826bf58c941efb65d57a338bbd2e26640f89ffbc" + "1a858efcb8550ee3a5e1998bd177e93a7363c344fe6b199ee5d02e82d522c4fe" + "ba15452f80288a821a579116ec6dad2b3b310da903401aa62100ab5d1a36553e" + "06203b33890cc9b832f79ef80560ccb9a39ce767967ed628c6ad573cb116dbef" + "efd75499da96bd68a8a97b928a8bbc103b6621fcde2beca1231d206be6cd9ec7" + "aff6f6c94fcd7204ed3455c68c83f4a41da4af2b74ef5c53f1d8ac70bdcb7ed1" + "85ce81bd84359d44254d95629e9855a94a7c1958d1f8ada5d0532ed8a5aa3fb2" + "d17ba70eb6248e594e1a2297acbbb39d502f1a8c6eb6f1ce22b3de1a1f40cc24" + "554119a831a9aad6079cad88425de6bde1a9187ebb6092cf67bf2b13fd65f270" + "88d78b7e883c8759d2c4f5c65adb7553878ad575f9fad878e80a0c9ba63bcbcc" + "2732e69485bbc9c90bfbd62481d9089beccf80cfe2df16a2cf65bd92dd597b07" + "07e0917af48bbb75fed413d238f5555a7a569d80c3414a8d0859dc65a46128ba" + "b27af87a71314f318c782b23ebfe808b82b0ce26401d2e22f04d83d1255dc51a" + "ddd3b75a2b1ae0784504df543af8969be3ea7082ff7fc9888c144da2af58429e" + "c96031dbcad3dad9af0dcbaaaf268cb8fcffead94f3c7ca495e056a9b47acdb7" + "51fb73e666c6c655ade8297297d07ad1ba5e43f1bca32301651339e22904cc8c" + "42f58c30c04aafdb038dda0847dd988dcda6f3bfd15c4b4c4525004aa06eeff8" + "ca61783aacec57fb3d1f92b0fe2fd1a85f6724517b65e614ad6808d6f6ee34df" + "f7310fdc82aebfd904b01e1dc54b2927094b2db68d6f903b68401adebf5a7e08" + "d78ff4ef5d63653a65040cf9bfd4aca7984a74d37145986780fc0b16ac451649" + "de6188a7dbdf191f64b5fc5e2ab47b57f7f7276cd419c17a3ca8e1b939ae49e4" + "88acba6b965610b5480109c8b17b80e1b7b750dfc7598d5d5011fd2dcc5600a3" + "2ef5b52a1ecc820e308aa342721aac0943bf6686b64b2579376504ccc493d97e" + "6aed3fb0f9cd71a43dd497f01f17c0e2cb3797aa2a2f256656168e6c496afc5f" + "b93246f6b1116398a346f1a641f3b041e989f7914f90cc2c7fff357876e506b5" + "0d334ba77c225bc307ba537152f3f1610e4eafe595f6d9d90d11faa933a15ef1" + "369546868a7f3a45a96768d40fd9d03412c091c6315cf4fde7cb68606937380d" + "b2eaaa707b4c4185c32eddcdd306705e4dc1ffc872eeee475a64dfac86aba41c" + "0618983f8741c5ef68d3a101e8a3b8cac60c905c15fc910840b94c00a0b9d0" + ); + BN_bn2bin(input, msg); + BN_hex2bn(&input, + "0aab4c900501b3e24d7cdf4663326a3a87df5e4843b2cbdb67cbf6e460fec350" + "aa5371b1508f9f4528ecea23c436d94b5e8fcd4f681e30a6ac00a9704a188a03"); + BN_bn2bin(input, sig); + BN_hex2bn(&input, + "278117fc144c72340f67d0f2316e8386ceffbf2b2428c9c51fef7c597f1d426e"); + BN_bn2bin(input, pub); + + uint8_t s[64]; + i2p::crypto::EDDSA25519Signer signer (key); + signer.Sign (msg, 1023, s); +#if OPENSSL_EDDSA + assert(memcmp (s, sig, 64) == 0); +#endif + + i2p::crypto::EDDSA25519Verifier verifier; + verifier.SetPublicKey (pub); + assert(verifier.Verify (msg, 1023, s)); +} diff --git a/tests/test-elligator.cpp b/tests/test-elligator.cpp new file mode 100644 index 00000000..359c71c5 --- /dev/null +++ b/tests/test-elligator.cpp @@ -0,0 +1,85 @@ +#include +#include +#include + +#include "Elligator.h" + +const uint8_t key[32] = +{ + 0x33, 0x95, 0x19, 0x64, 0x00, 0x3c, 0x94, 0x08, 0x78, 0x06, 0x3c, 0xcf, 0xd0, 0x34, 0x8a, 0xf4, + 0x21, 0x50, 0xca, 0x16, 0xd2, 0x64, 0x6f, 0x2c, 0x58, 0x56, 0xe8, 0x33, 0x83, 0x77, 0xd8, 0x80 +}; + +const uint8_t encoded_key[32] = +{ + 0x28, 0x20, 0xb6, 0xb2, 0x41, 0xe0, 0xf6, 0x8a, 0x6c, 0x4a, 0x7f, 0xee, 0x3d, 0x97, 0x82, 0x28, + 0xef, 0x3a, 0xe4, 0x55, 0x33, 0xcd, 0x41, 0x0a, 0xa9, 0x1a, 0x41, 0x53, 0x31, 0xd8, 0x61, 0x2d +}; + +const uint8_t encoded_key_high_y[32] = +{ + 0x3c, 0xfb, 0x87, 0xc4, 0x6c, 0x0b, 0x45, 0x75, 0xca, 0x81, 0x75, 0xe0, 0xed, 0x1c, 0x0a, 0xe9, + 0xda, 0xe7, 0x9d, 0xb7, 0x8d, 0xf8, 0x69, 0x97, 0xc4, 0x84, 0x7b, 0x9f, 0x20, 0xb2, 0x77, 0x18 +}; + +const uint8_t encoded1[32] = +{ + 0xe7, 0x35, 0x07, 0xd3, 0x8b, 0xae, 0x63, 0x99, 0x2b, 0x3f, 0x57, 0xaa, 0xc4, 0x8c, 0x0a, 0xbc, + 0x14, 0x50, 0x95, 0x89, 0x28, 0x84, 0x57, 0x99, 0x5a, 0x2b, 0x4c, 0xa3, 0x49, 0x0a, 0xa2, 0x07 +}; + +const uint8_t key1[32] = +{ + 0x1e, 0x8a, 0xff, 0xfe, 0xd6, 0xbf, 0x53, 0xfe, 0x27, 0x1a, 0xd5, 0x72, 0x47, 0x32, 0x62, 0xde, + 0xd8, 0xfa, 0xec, 0x68, 0xe5, 0xe6, 0x7e, 0xf4, 0x5e, 0xbb, 0x82, 0xee, 0xba, 0x52, 0x60, 0x4f +}; + +const uint8_t encoded2[32] = +{ + 0x95, 0xa1, 0x60, 0x19, 0x04, 0x1d, 0xbe, 0xfe, 0xd9, 0x83, 0x20, 0x48, 0xed, 0xe1, 0x19, 0x28, + 0xd9, 0x03, 0x65, 0xf2, 0x4a, 0x38, 0xaa, 0x7a, 0xef, 0x1b, 0x97, 0xe2, 0x39, 0x54, 0x10, 0x1b +}; + +const uint8_t key2[32] = +{ + 0x79, 0x4f, 0x05, 0xba, 0x3e, 0x3a, 0x72, 0x95, 0x80, 0x22, 0x46, 0x8c, 0x88, 0x98, 0x1e, 0x0b, + 0xe5, 0x78, 0x2b, 0xe1, 0xe1, 0x14, 0x5c, 0xe2, 0xc3, 0xc6, 0xfd, 0xe1, 0x6d, 0xed, 0x53, 0x63 +}; + +const uint8_t encoded3[32] = +{ + 0xf6, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f +}; + +const uint8_t key3[32] = +{ + 0x9c, 0xdb, 0x52, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, + 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55 +}; + +const uint8_t failed_key[32] = +{ + 0xe6, 0xf6, 0x6f, 0xdf, 0x6e, 0x23, 0x0c, 0x60, 0x3c, 0x5e, 0x6e, 0x59, 0xa2, 0x54, 0xea, 0x14, + 0x76, 0xa1, 0x3e, 0xb9, 0x51, 0x1b, 0x95, 0x49, 0x84, 0x67, 0x81, 0xe1, 0x2e, 0x52, 0x23, 0x0a +}; + +int main () +{ + uint8_t buf[32]; + i2p::crypto::Elligator2 el; + // encoding tests + el.Encode (key, buf, false, false); + assert(memcmp (buf, encoded_key, 32) == 0); + el.Encode (key, buf, true, false); // with highY + assert(memcmp (buf, encoded_key_high_y, 32) == 0); + // decoding tests + el.Decode (encoded1, buf); + assert(memcmp (buf, key1, 32) == 0); + el.Decode (encoded2, buf); + assert(memcmp (buf, key2, 32) == 0); + el.Decode (encoded3, buf); + assert(memcmp (buf, key3, 32) == 0); + // encoding fails + assert (!el.Encode (failed_key, buf)); +} diff --git a/tests/test-gost-sig.cpp b/tests/test-gost-sig.cpp index 55cc2d1b..1348af54 100644 --- a/tests/test-gost-sig.cpp +++ b/tests/test-gost-sig.cpp @@ -21,12 +21,14 @@ int main () i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410TC26A512, priv, pub); i2p::crypto::GOSTR3410_512_Signer signer (i2p::crypto::eGOSTR3410TC26A512, priv); signer.Sign (example2, 72, signature); - i2p::crypto::GOSTR3410_512_Verifier verifier (i2p::crypto::eGOSTR3410TC26A512, pub); + i2p::crypto::GOSTR3410_512_Verifier verifier (i2p::crypto::eGOSTR3410TC26A512); + verifier.SetPublicKey (pub); assert (verifier.Verify (example2, 72, signature)); i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410CryptoProA, priv, pub); i2p::crypto::GOSTR3410_256_Signer signer1 (i2p::crypto::eGOSTR3410CryptoProA, priv); signer1.Sign (example2, 72, signature); - i2p::crypto::GOSTR3410_256_Verifier verifier1 (i2p::crypto::eGOSTR3410CryptoProA, pub); + i2p::crypto::GOSTR3410_256_Verifier verifier1 (i2p::crypto::eGOSTR3410CryptoProA); + verifier1.SetPublicKey (pub); assert (verifier1.Verify (example2, 72, signature)); } diff --git a/tests/test-http-merge_chunked.cpp b/tests/test-http-merge_chunked.cpp index ba587a45..31b6a298 100644 --- a/tests/test-http-merge_chunked.cpp +++ b/tests/test-http-merge_chunked.cpp @@ -1,5 +1,5 @@ #include -#include "../HTTP.h" +#include "HTTP.h" using namespace i2p::http; diff --git a/tests/test-http-req.cpp b/tests/test-http-req.cpp index c857ca24..db973a2e 100644 --- a/tests/test-http-req.cpp +++ b/tests/test-http-req.cpp @@ -1,5 +1,5 @@ #include -#include "../HTTP.h" +#include "HTTP.h" using namespace i2p::http; @@ -22,13 +22,13 @@ int main() { assert(req->version == "HTTP/1.0"); assert(req->method == "GET"); assert(req->uri == "/"); - assert(req->headers.size() == 3); - assert(req->headers.count("Host") == 1); - assert(req->headers.count("Accept") == 1); - assert(req->headers.count("User-Agent") == 1); - assert(req->headers.find("Host")->second == "inr.i2p"); - assert(req->headers.find("Accept")->second == "*/*"); - assert(req->headers.find("User-Agent")->second == "curl/7.26.0"); + assert(req->GetNumHeaders () == 3); + assert(req->GetNumHeaders("Host") == 1); + assert(req->GetNumHeaders("Accept") == 1); + assert(req->GetNumHeaders("User-Agent") == 1); + assert(req->GetHeader("Host") == "inr.i2p"); + assert(req->GetHeader("Accept") == "*/*"); + assert(req->GetHeader("User-Agent") == "curl/7.26.0"); delete req; /* test: parsing request without body */ @@ -41,7 +41,7 @@ int main() { assert(req->version == "HTTP/1.0"); assert(req->method == "GET"); assert(req->uri == "/"); - assert(req->headers.size() == 0); + assert(req->GetNumHeaders () == 0); delete req; /* test: parsing request without body */ @@ -74,13 +74,13 @@ int main() { assert((ret = req->parse(buf, len)) == len); /* no host header */ assert(req->method == "GET"); assert(req->uri == "http://inr.i2p"); - assert(req->headers.size() == 3); - assert(req->headers.count("Host") == 1); - assert(req->headers.count("Accept") == 1); - assert(req->headers.count("Accept-Encoding") == 1); - assert(req->headers["Host"] == "stats.i2p"); - assert(req->headers["Accept"] == "*/*"); - assert(req->headers["Accept-Encoding"] == ""); + assert(req->GetNumHeaders () == 3); + assert(req->GetNumHeaders("Host") == 1); + assert(req->GetNumHeaders("Accept") == 1); + assert(req->GetNumHeaders("Accept-Encoding") == 1); + assert(req->GetHeader("Host") == "stats.i2p"); + assert(req->GetHeader("Accept") == "*/*"); + assert(req->GetHeader("Accept-Encoding") == ""); delete req; return 0; diff --git a/tests/test-http-res.cpp b/tests/test-http-res.cpp index 896a4403..270f32a3 100644 --- a/tests/test-http-res.cpp +++ b/tests/test-http-res.cpp @@ -1,5 +1,5 @@ #include -#include "../HTTP.h" +#include "HTTP.h" using namespace i2p::http; diff --git a/tests/test-http-url.cpp b/tests/test-http-url.cpp index 37e9c45e..a5021c43 100644 --- a/tests/test-http-url.cpp +++ b/tests/test-http-url.cpp @@ -1,5 +1,5 @@ #include -#include "../HTTP.h" +#include "HTTP.h" using namespace i2p::http; @@ -15,6 +15,7 @@ int main() { assert(url->host == "127.0.0.1"); assert(url->port == 7070); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == "12345"); assert(url->to_string() == "https://127.0.0.1:7070/asdasd?12345"); delete url; @@ -27,6 +28,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 8080); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == "123456"); delete url; @@ -38,6 +40,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 0); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == "name=value"); delete url; @@ -49,6 +52,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 0); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == "name=value1&name=value2"); delete url; @@ -60,6 +64,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 0); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == "name1=value1&name2&name3=value2"); assert(url->parse_query(params)); assert(params.size() == 3); @@ -79,6 +84,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 800); assert(url->path == "/asdasd"); + assert(url->hasquery == true); assert(url->query == ""); delete url; @@ -90,6 +96,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 17); assert(url->path == ""); + assert(url->hasquery == false); assert(url->query == ""); delete url; @@ -101,6 +108,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 0); assert(url->path == ""); + assert(url->hasquery == false); assert(url->query == ""); delete url; @@ -112,6 +120,7 @@ int main() { assert(url->host == "site.com"); assert(url->port == 84); assert(url->path == "/asdasd/@17"); + assert(url->hasquery == false); assert(url->query == ""); assert(url->frag == "frag"); delete url; diff --git a/tests/test-http-url_decode.cpp b/tests/test-http-url_decode.cpp index f72b2c50..7f08bbc6 100644 --- a/tests/test-http-url_decode.cpp +++ b/tests/test-http-url_decode.cpp @@ -1,5 +1,5 @@ #include -#include "../HTTP.h" +#include "HTTP.h" using namespace i2p::http; diff --git a/tests/test-x25519.cpp b/tests/test-x25519.cpp deleted file mode 100644 index 9f249dbd..00000000 --- a/tests/test-x25519.cpp +++ /dev/null @@ -1,36 +0,0 @@ -#include -#include -#include - -#include "Ed25519.h" - -const uint8_t k[32] = -{ - 0xa5, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d, 0x3b, 0x16, 0x15, - 0x4b, 0x82, 0x46, 0x5e, 0xdd, 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, - 0x5a, 0x18, 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0xc4 -}; - -const uint8_t u[32] = -{ - 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb, 0x35, 0x94, 0xc1, - 0xa4, 0x24, 0xb1, 0x5f, 0x7c, 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, - 0x35, 0x3b, 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c -}; - -uint8_t p[32] = -{ - 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90, 0x8e, 0x94, 0xea, - 0x4d, 0xf2, 0x8d, 0x08, 0x4f, 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, - 0x71, 0xf7, 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 -}; - -int main () -{ - uint8_t buf[32]; - BN_CTX * ctx = BN_CTX_new (); - i2p::crypto::GetEd25519 ()->ScalarMul (u, k, buf, ctx); - BN_CTX_free (ctx); - assert(memcmp (buf, p, 32) == 0); -} -