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handle RelayResponse

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orignal 2022-04-26 13:59:59 -04:00
parent eb6437050f
commit 40340cf9c2
2 changed files with 48 additions and 25 deletions
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8
libi2pd/SSU2.h
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@ -25,7 +25,8 @@ namespace transport
const int SSU2_CONNECT_TIMEOUT = 5; // 5 seconds
const int SSU2_TERMINATION_TIMEOUT = 330; // 5.5 minutes
const int SSU2_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds
const int SSU2_TOKEN_EXPIRATION_TIMEOUT = 9; // in second
const int SSU2_TOKEN_EXPIRATION_TIMEOUT = 9; // in seconds
const int SSU2_RELAY_NONCE_EXPIRATION_TIMEOUT = 10; // in seconds
const size_t SSU2_SOCKET_RECEIVE_BUFFER_SIZE = 0x1FFFF; // 128K
const size_t SSU2_SOCKET_SEND_BUFFER_SIZE = 0x1FFFF; // 128K
const size_t SSU2_MTU = 1488;
@ -74,6 +75,7 @@ namespace transport
enum SSU2SessionState
{
eSSU2SessionStateUnknown,
eSSU2SessionStateIntroduced,
eSSU2SessionStateEstablished,
eSSU2SessionStateTerminated,
eSSU2SessionStateFailed
@ -188,6 +190,7 @@ namespace transport
bool ConcatOutOfSequenceFragments (std::shared_ptr<SSU2IncompleteMessage> m); // true if message complete
void HandleRelayRequest (const uint8_t * buf, size_t len);
void HandleRelayIntro (const uint8_t * buf, size_t len);
void HandleRelayResponse (const uint8_t * buf, size_t len);
size_t CreateAddressBlock (const boost::asio::ip::udp::endpoint& ep, uint8_t * buf, size_t len);
size_t CreateAckBlock (uint8_t * buf, size_t len);
@ -196,7 +199,7 @@ namespace transport
size_t CreateFirstFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr<I2NPMessage> msg);
size_t CreateFollowOnFragmentBlock (uint8_t * buf, size_t len, std::shared_ptr<I2NPMessage> 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, uint32_t nonce, uint32_t relayTag); // Charlie
size_t CreateRelayResponseBlock (uint8_t * buf, size_t len, uint32_t nonce); // Charlie
private:
@ -213,6 +216,7 @@ namespace transport
std::set<uint32_t> m_OutOfSequencePackets; // packet nums > receive packet num
std::map<uint32_t, std::shared_ptr<SentPacket> > m_SentPackets; // packetNum -> packet
std::map<uint32_t, std::shared_ptr<SSU2IncompleteMessage> > m_IncompleteMessages; // I2NP
std::map<uint32_t, std::pair <std::shared_ptr<SSU2Session>, uint64_t > > m_RelaySessions; // nonce->(Alice, timestamp) for Bob or nonce->(Charlie, timestamp) for Alice
std::list<std::shared_ptr<I2NPMessage> > m_SendQueue;
i2p::I2NPMessagesHandler m_Handler;
bool m_IsDataReceived;