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Merge pull request #1825 from PurpleI2P/openssl

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orignal 2022-12-11 18:20:33 -05:00 committed by GitHub
parent 6e3aef0b9b 3458665df8
commit 4540d22de8
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 290 additions and 147 deletions
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12
daemon/HTTPServer.cpp
View file

@ -248,6 +248,9 @@ namespace http {
case eRouterErrorSymmetricNAT:
s << " - " << tr("Symmetric NAT");
break;
case eRouterErrorNoDescriptors:
s << " - " << tr("No Descriptors");
break;
default: ;
}
}
@ -299,14 +302,18 @@ namespace http {
if ((outputFormat == OutputFormatEnum::forWebConsole) || !includeHiddenContent) {
s << "<label for=\"slide-info\">" << tr("Hidden content. Press on text to see.") << "</label>\r\n<input type=\"checkbox\" id=\"slide-info\" />\r\n<div class=\"slidecontent\">\r\n";
}
if (includeHiddenContent) {
if (includeHiddenContent)
{
s << "<b>" << tr("Router Ident") << ":</b> " << i2p::context.GetRouterInfo().GetIdentHashBase64() << "<br>\r\n";
if (!i2p::context.GetRouterInfo().GetProperty("family").empty())
s << "<b>" << tr("Router Family") << ":</b> " << i2p::context.GetRouterInfo().GetProperty("family") << "<br>\r\n";
s << "<b>" << tr("Router Caps") << ":</b> " << i2p::context.GetRouterInfo().GetProperty("caps") << "<br>\r\n";
s << "<b>" << tr("Version") << ":</b> " VERSION "<br>\r\n";
s << "<b>"<< tr("Our external address") << ":</b>" << "<br>\r\n<table class=\"extaddr\"><tbody>\r\n";
for (const auto& address : i2p::context.GetRouterInfo().GetAddresses())
auto addresses = i2p::context.GetRouterInfo().GetAddresses ();
if (addresses)
{
for (const auto& address : *addresses)
{
s << "<tr>\r\n<td>";
switch (address->transportStyle)
@ -337,6 +344,7 @@ namespace http {
}
s << "</tr>\r\n";
}
}
s << "</tbody></table>\r\n";
}
s << "</div>\r\n</div>\r\n";

10
daemon/UPnP.cpp
View file

@ -159,8 +159,9 @@ namespace transport
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)
TryPortMapping (address);
@ -210,8 +211,9 @@ namespace transport
void UPnP::CloseMapping ()
{
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)
CloseMapping (address);

5
libi2pd/Gzip.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2020, The PurpleI2P Project
* Copyright (c) 2013-2022, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
@ -57,6 +57,7 @@ namespace data
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;
}
@ -128,6 +129,7 @@ namespace data
return outLen - m_Deflator.avail_out;
}
// else
if (err)
LogPrint (eLogError, "Gzip: Deflate error ", err);
return 0;
}
@ -158,6 +160,7 @@ namespace data
offset = outLen - m_Deflator.avail_out;
}
// else
if (err)
LogPrint (eLogError, "Gzip: Deflate error ", err);
return 0;
}

39
libi2pd/NTCP2.cpp
View file

@ -1210,8 +1210,9 @@ namespace transport
else
LogPrint(eLogInfo, "NTCP2: Proxy is not used");
// start acceptors
auto& addresses = context.GetRouterInfo ().GetAddresses ();
for (const auto& address: addresses)
auto addresses = context.GetRouterInfo ().GetAddresses ();
if (!addresses) return;
for (const auto& address: *addresses)
{
if (!address) continue;
if (address->IsPublishedNTCP2 () && address->port)
@ -1424,7 +1425,14 @@ namespace transport
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)
{
@ -1456,6 +1464,15 @@ namespace transport
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)
{
@ -1500,8 +1517,24 @@ namespace transport
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<NTCP2Session> (*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<NTCP2Session> (*this);
m_NTCP2V6Acceptor->async_accept(conn->GetSocket (), std::bind (&NTCP2Server::HandleAcceptV6, this,
conn, std::placeholders::_1));
}
}
}

4
libi2pd/NetDb.cpp
View file

@ -603,6 +603,7 @@ namespace data
uint64_t expirationTimeout = NETDB_MAX_EXPIRATION_TIMEOUT*1000LL;
uint64_t ts = i2p::util::GetMillisecondsSinceEpoch();
auto uptime = i2p::context.GetUptime ();
bool isLowRate = i2p::tunnel::tunnels.GetTunnelCreationSuccessRate () < NETDB_MIN_TUNNEL_CREATION_SUCCESS_RATE;
// routers don't expire if less than 90 or uptime is less than 1 hour
bool checkForExpiration = total > NETDB_MIN_ROUTERS && uptime > 600; // 10 minutes
if (checkForExpiration && uptime > 3600) // 1 hour
@ -624,7 +625,7 @@ namespace data
continue;
}
// make router reachable back if too few routers or floodfills
if (it.second->IsUnreachable () && (total - deletedCount < NETDB_MIN_ROUTERS ||
if (it.second->IsUnreachable () && (total - deletedCount < NETDB_MIN_ROUTERS || isLowRate ||
(it.second->IsFloodfill () && totalFloodfills - deletedFloodfillsCount < NETDB_MIN_FLOODFILLS)))
it.second->SetUnreachable (false);
// find & mark expired routers
@ -650,6 +651,7 @@ namespace data
m_RouterInfoBuffersPool.CleanUpMt ();
m_RouterInfoAddressesPool.CleanUpMt ();
m_RouterInfoAddressVectorsPool.CleanUpMt ();
if (updatedCount > 0)
LogPrint (eLogInfo, "NetDb: Saved ", updatedCount, " new/updated routers");

9
libi2pd/NetDb.hpp
View file

@ -38,6 +38,7 @@ namespace data
{
const int NETDB_MIN_ROUTERS = 90;
const int NETDB_MIN_FLOODFILLS = 5;
const int NETDB_MIN_TUNNEL_CREATION_SUCCESS_RATE = 8; // in percents
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
@ -124,6 +125,13 @@ namespace data
std::shared_ptr<RouterInfo::Buffer> NewRouterInfoBuffer () { return m_RouterInfoBuffersPool.AcquireSharedMt (); };
void PopulateRouterInfoBuffer (std::shared_ptr<RouterInfo> r);
std::shared_ptr<RouterInfo::Address> NewRouterInfoAddress () { return m_RouterInfoAddressesPool.AcquireSharedMt (); };
boost::shared_ptr<RouterInfo::Addresses> NewRouterInfoAddresses ()
{
return boost::shared_ptr<RouterInfo::Addresses>(m_RouterInfoAddressVectorsPool.AcquireMt (),
std::bind <void (i2p::util::MemoryPoolMt<RouterInfo::Addresses>::*)(RouterInfo::Addresses *)>
(&i2p::util::MemoryPoolMt<RouterInfo::Addresses>::ReleaseMt,
&m_RouterInfoAddressVectorsPool, std::placeholders::_1));
};
std::shared_ptr<Lease> NewLease (const Lease& lease) { return m_LeasesPool.AcquireSharedMt (lease); };
uint32_t GetPublishReplyToken () const { return m_PublishReplyToken; };
@ -182,6 +190,7 @@ namespace data
i2p::util::MemoryPoolMt<RouterInfo::Buffer> m_RouterInfoBuffersPool;
i2p::util::MemoryPoolMt<RouterInfo::Address> m_RouterInfoAddressesPool;
i2p::util::MemoryPoolMt<RouterInfo::Addresses> m_RouterInfoAddressVectorsPool;
i2p::util::MemoryPoolMt<Lease> m_LeasesPool;
};

82
libi2pd/RouterContext.cpp
View file

@ -267,8 +267,10 @@ 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->port != port && address->transportStyle == i2p::data::RouterInfo::eTransportSSU2)
{
@ -283,8 +285,10 @@ namespace i2p
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;
for (auto& address : m_RouterInfo.GetAddresses ())
for (auto& address : *addresses)
{
if (address->IsNTCP2 () && (address->port != port || address->published != publish))
{
@ -312,9 +316,10 @@ namespace i2p
void RouterContext::UpdateNTCP2Address (bool enable)
{
auto& addresses = m_RouterInfo.GetAddresses ();
auto addresses = m_RouterInfo.GetAddresses ();
if (!addresses) return;
bool found = false, updated = false;
for (auto it = addresses.begin (); it != addresses.end ();)
for (auto it = addresses->begin (); it != addresses->end ();)
{
if ((*it)->IsNTCP2 ())
{
@ -326,7 +331,7 @@ namespace i2p
it++;
}
else
it = addresses.erase (it);
it = addresses->erase (it);
updated = true;
}
else
@ -344,10 +349,12 @@ namespace i2p
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)
{
for (const auto& address : m_RouterInfo.GetAddresses ())
for (const auto& address : *addresses)
if (address->port)
{
newPort = address->port;
@ -356,7 +363,7 @@ namespace i2p
if (!newPort) newPort = SelectRandomPort ();
}
bool updated = false;
for (auto& address : m_RouterInfo.GetAddresses ())
for (auto& address : *addresses)
{
if (address->IsSSU2 () && (!address->port || address->port != port || address->published != publish) &&
((v4 && address->IsV4 ()) || (v6 && address->IsV6 ())))
@ -377,9 +384,10 @@ namespace i2p
void RouterContext::UpdateSSU2Address (bool enable)
{
auto& addresses = m_RouterInfo.GetAddresses ();
auto addresses = m_RouterInfo.GetAddresses ();
if (!addresses) return;
bool found = false, updated = false;
for (auto it = addresses.begin (); it != addresses.end ();)
for (auto it = addresses->begin (); it != addresses->end ();)
{
if ((*it)->IsSSU2 ())
{
@ -391,7 +399,7 @@ namespace i2p
it++;
}
else
it = addresses.erase (it);
it = addresses->erase (it);
updated = true;
}
else
@ -422,8 +430,10 @@ namespace i2p
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 ())
for (auto& address : *addresses)
{
if (address->host != host && address->IsCompatible (host) &&
!i2p::util::net::IsYggdrasilAddress (address->host))
@ -472,9 +482,10 @@ namespace i2p
void RouterContext::ClearSSU2Introducers (bool v4)
{
auto addresses = m_RouterInfo.GetAddresses ();
if (!addresses) return;
bool updated = false;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr : addresses)
for (auto& addr : *addresses)
if (addr->IsSSU2 () && ((v4 && addr->IsV4 ()) || (!v4 && addr->IsV6 ())) &&
addr->ssu && !addr->ssu->introducers.empty ())
{
@ -597,8 +608,10 @@ namespace i2p
}
uint16_t port = 0;
// delete previous introducers
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr : addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (addresses)
{
for (auto& addr : *addresses)
if (addr->ssu && ((v4 && addr->IsV4 ()) || (v6 && addr->IsV6 ())))
{
addr->published = false;
@ -606,6 +619,7 @@ namespace i2p
addr->ssu->introducers.clear ();
port = addr->port;
}
}
// unpublish NTCP2 addreeses
bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
if (ntcp2)
@ -630,8 +644,10 @@ namespace i2p
uint16_t port = 0;
// delete previous introducers
bool isSSU2Published; i2p::config::GetOption ("ssu2.published", isSSU2Published);
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr : addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (addresses)
{
for (auto& addr : *addresses)
if (addr->ssu && isSSU2Published && ((v4 && addr->IsV4 ()) || (v6 && addr->IsV6 ())))
{
addr->published = true;
@ -639,6 +655,7 @@ namespace i2p
addr->ssu->introducers.clear ();
if (addr->port) port = addr->port;
}
}
// publish NTCP2
bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
if (ntcp2)
@ -663,8 +680,10 @@ namespace i2p
// insert v6 addresses if necessary
bool foundNTCP2 = false, foundSSU2 = false;
uint16_t port = 0;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr: addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (addresses)
{
for (auto& addr: *addresses)
{
if (addr->IsV6 () && !i2p::util::net::IsYggdrasilAddress (addr->host))
{
@ -681,6 +700,7 @@ namespace i2p
}
port = addr->port;
}
}
if (!port)
{
i2p::config::GetOption("port", port);
@ -743,8 +763,10 @@ namespace i2p
bool foundNTCP2 = false, foundSSU2 = false;
std::string host = "127.0.0.1";
uint16_t port = 0;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr: addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (addresses)
{
for (auto& addr: *addresses)
{
if (addr->IsV4 ())
{
@ -761,6 +783,7 @@ namespace i2p
}
if (addr->port) port = addr->port;
}
}
if (!port)
{
i2p::config::GetOption("port", port);
@ -816,8 +839,10 @@ namespace i2p
i2p::config::GetOption ("ntcp2.port", port);
if (!port) i2p::config::GetOption("port", port);
bool foundMesh = false;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr: addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (addresses)
{
for (auto& addr: *addresses)
{
if (!port) port = addr->port;
if (i2p::util::net::IsYggdrasilAddress (addr->host))
@ -826,6 +851,7 @@ namespace i2p
break;
}
}
}
if (!foundMesh)
m_RouterInfo.AddNTCP2Address (m_NTCP2Keys->staticPublicKey, m_NTCP2Keys->iv, host, port);
}
@ -837,8 +863,9 @@ namespace i2p
void RouterContext::SetMTU (int mtu, bool v4)
{
if (mtu < 1280 || mtu > 1500) return;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr: addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (!addresses) return;
for (auto& addr: *addresses)
{
if (addr->ssu && ((v4 && addr->IsV4 ()) || (!v4 && addr->IsV6 ())))
{
@ -852,8 +879,9 @@ namespace i2p
{
bool isYgg = i2p::util::net::IsYggdrasilAddress (host);
bool updated = false;
auto& addresses = m_RouterInfo.GetAddresses ();
for (auto& addr: addresses)
auto addresses = m_RouterInfo.GetAddresses ();
if (!addresses) return;
for (auto& addr: *addresses)
{
if (addr->IsPublishedNTCP2 ())
{

3
libi2pd/RouterContext.h
View file

@ -47,7 +47,8 @@ namespace garlic
eRouterErrorNone = 0,
eRouterErrorClockSkew = 1,
eRouterErrorOffline = 2,
eRouterErrorSymmetricNAT = 3
eRouterErrorSymmetricNAT = 3,
eRouterErrorNoDescriptors = 4
};
class RouterContext: public i2p::garlic::GarlicDestination

38
libi2pd/RouterInfo.cpp
View file

@ -206,9 +206,10 @@ namespace data
s.read ((char *)&m_Timestamp, sizeof (m_Timestamp));
m_Timestamp = be64toh (m_Timestamp);
// read addresses
if (!m_NewAddresses) m_NewAddresses = boost::make_shared<Addresses>();
auto addresses = netdb.NewRouterInfoAddresses ();
uint8_t numAddresses;
s.read ((char *)&numAddresses, sizeof (numAddresses));
addresses->reserve (numAddresses);
for (int i = 0; i < numAddresses; i++)
{
uint8_t supportedTransports = 0;
@ -417,19 +418,16 @@ namespace data
if (supportedTransports)
{
if (!(m_SupportedTransports & supportedTransports)) // avoid duplicates
m_NewAddresses->push_back(address);
addresses->push_back(address);
m_SupportedTransports |= supportedTransports;
}
}
// update addresses
auto prev = m_Addresses;
#if (BOOST_VERSION >= 105300)
boost::atomic_store (&m_Addresses, m_NewAddresses);
boost::atomic_store (&m_Addresses, addresses);
#else
m_Addresses = m_NewAddresses; // race condition
m_Addresses = addresses; // race condition
#endif
if (prev) prev->clear ();
m_NewAddresses = prev;
// read peers
uint8_t numPeers;
s.read ((char *)&numPeers, sizeof (numPeers)); if (!s) return;
@ -826,6 +824,15 @@ namespace data
return nullptr;
}
boost::shared_ptr<RouterInfo::Addresses> RouterInfo::GetAddresses () const
{
#if (BOOST_VERSION >= 105300)
return boost::atomic_load (&m_Addresses);
#else
return m_Addresses;
#endif
}
template<typename Filter>
std::shared_ptr<const RouterInfo::Address> RouterInfo::GetAddress (Filter filter) const
{
@ -1048,14 +1055,15 @@ namespace data
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
const Addresses& addresses = GetAddresses ();
uint8_t numAddresses = addresses.size ();
uint8_t numAddresses = addresses->size ();
s.write ((char *)&numAddresses, sizeof (numAddresses));
for (const auto& addr_ptr : addresses)
for (const auto& addr_ptr : *addresses)
{
const Address& address = *addr_ptr;
// calculate cost
@ -1257,7 +1265,9 @@ namespace data
bool LocalRouterInfo::AddSSU2Introducer (const Introducer& introducer, bool v4)
{
for (auto& addr : GetAddresses ())
auto addresses = GetAddresses ();
if (!addresses) return false;
for (auto& addr : *addresses)
{
if (addr->IsSSU2 () && ((v4 && addr->IsV4 ()) || (!v4 && addr->IsV6 ())))
{
@ -1273,7 +1283,9 @@ namespace data
bool LocalRouterInfo::RemoveSSU2Introducer (const IdentHash& h, bool v4)
{
for (auto& addr: GetAddresses ())
auto addresses = GetAddresses ();
if (!addresses) return false;
for (auto& addr: *addresses)
{
if (addr->IsSSU2 () && ((v4 && addr->IsV4 ()) || (!v4 && addr->IsV6 ())))
{

5
libi2pd/RouterInfo.h
View file

@ -176,7 +176,7 @@ namespace data
int GetVersion () const { return m_Version; };
virtual void SetProperty (const std::string& key, const std::string& value) {};
virtual void ClearProperties () {};
Addresses& GetAddresses () { return *m_Addresses; }; // should be called for local RI only, otherwise must return shared_ptr
boost::shared_ptr<Addresses> GetAddresses () const; // should be called for local RI only, otherwise must return shared_ptr
std::shared_ptr<const Address> GetNTCP2AddressWithStaticKey (const uint8_t * key) const;
std::shared_ptr<const Address> GetSSU2AddressWithStaticKey (const uint8_t * key, bool isV6) const;
std::shared_ptr<const Address> GetPublishedNTCP2V4Address () const;
@ -258,7 +258,6 @@ namespace data
void UpdateBuffer (const uint8_t * buf, size_t len);
void SetBufferLen (size_t len) { m_BufferLen = len; };
void RefreshTimestamp ();
const Addresses& GetAddresses () const { return *m_Addresses; };
CompatibleTransports GetReachableTransports () const { return m_ReachableTransports; };
void SetReachableTransports (CompatibleTransports transports) { m_ReachableTransports = transports; };
@ -282,7 +281,7 @@ namespace data
std::shared_ptr<Buffer> m_Buffer;
size_t m_BufferLen;
uint64_t m_Timestamp;
boost::shared_ptr<Addresses> m_Addresses, m_NewAddresses; // TODO: use std::shared_ptr and std::atomic_store for gcc >= 4.9
boost::shared_ptr<Addresses> m_Addresses; // TODO: use std::shared_ptr and std::atomic_store for gcc >= 4.9
bool m_IsUpdated, m_IsUnreachable;
CompatibleTransports m_SupportedTransports, m_ReachableTransports;
uint8_t m_Caps;

31
libi2pd/SSU2.cpp
View file

@ -36,8 +36,9 @@ namespace transport
i2p::config::GetOption ("ssu2.published", m_IsPublished);
i2p::config::GetOption("nettime.frompeers", m_IsSyncClockFromPeers);
bool found = false;
auto& addresses = i2p::context.GetRouterInfo ().GetAddresses ();
for (const auto& address: addresses)
auto addresses = i2p::context.GetRouterInfo ().GetAddresses ();
if (!addresses) return;
for (const auto& address: *addresses)
{
if (!address) continue;
if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2)
@ -368,6 +369,7 @@ namespace transport
bool SSU2Server::AddPendingOutgoingSession (std::shared_ptr<SSU2Session> session)
{
if (!session) return false;
std::unique_lock<std::mutex> l(m_PendingOutgoingSessionsMutex);
return m_PendingOutgoingSessions.emplace (session->GetRemoteEndpoint (), session).second;
}
@ -381,6 +383,7 @@ namespace transport
std::shared_ptr<SSU2Session> SSU2Server::FindPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep) const
{
std::unique_lock<std::mutex> l(m_PendingOutgoingSessionsMutex);
auto it = m_PendingOutgoingSessions.find (ep);
if (it != m_PendingOutgoingSessions.end ())
return it->second;
@ -389,6 +392,7 @@ namespace transport
void SSU2Server::RemovePendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep)
{
std::unique_lock<std::mutex> l(m_PendingOutgoingSessionsMutex);
m_PendingOutgoingSessions.erase (ep);
}
@ -492,9 +496,10 @@ namespace transport
break;
case eSSU2SessionStateClosing:
m_LastSession->ProcessData (buf, len, senderEndpoint); // we might receive termintaion block
if (m_LastSession && m_LastSession->GetState () != eSSU2SessionStateTerminated)
if (m_LastSession && m_LastSession->GetState () == eSSU2SessionStateClosing)
m_LastSession->RequestTermination (eSSU2TerminationReasonIdleTimeout); // send termination again
break;
case eSSU2SessionStateClosingConfirmed:
case eSSU2SessionStateTerminated:
m_LastSession = nullptr;
break;
@ -510,7 +515,10 @@ namespace transport
{
if (it1->second->GetState () == eSSU2SessionStateSessionRequestSent &&
it1->second->ProcessSessionCreated (buf, len))
{
std::unique_lock<std::mutex> l(m_PendingOutgoingSessionsMutex);
m_PendingOutgoingSessions.erase (it1); // we are done with that endpoint
}
else
it1->second->ProcessRetry (buf, len);
}
@ -754,6 +762,7 @@ namespace transport
if (it->second->IsTerminationTimeoutExpired (ts))
{
//it->second->Terminate ();
std::unique_lock<std::mutex> l(m_PendingOutgoingSessionsMutex);
it = m_PendingOutgoingSessions.erase (it);
}
else
@ -844,13 +853,17 @@ namespace transport
m_OutgoingTokens[ep] = {token, exp};
}
uint64_t SSU2Server::FindOutgoingToken (const boost::asio::ip::udp::endpoint& ep) const
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)
return 0; // token expired
{
// token expired
m_OutgoingTokens.erase (it);
return 0;
}
return it->second.first;
}
return 0;
@ -858,12 +871,18 @@ namespace transport
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);
m_IncomingTokens.emplace (ep, std::make_pair (token, i2p::util::GetSecondsSinceEpoch () + SSU2_TOKEN_EXPIRATION_TIMEOUT));
m_IncomingTokens.emplace (ep, std::make_pair (token, ts + SSU2_TOKEN_EXPIRATION_TIMEOUT));
return token;
}

4
libi2pd/SSU2.h
View file

@ -10,6 +10,7 @@
#define SSU2_H__
#include <unordered_map>
#include <mutex>
#include "util.h"
#include "SSU2Session.h"
@ -88,7 +89,7 @@ namespace transport
bool StartPeerTest (std::shared_ptr<const i2p::data::RouterInfo> 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) const;
uint64_t FindOutgoingToken (const boost::asio::ip::udp::endpoint& ep);
uint64_t GetIncomingToken (const boost::asio::ip::udp::endpoint& ep);
std::pair<uint64_t, uint32_t> NewIncomingToken (const boost::asio::ip::udp::endpoint& ep);
@ -140,6 +141,7 @@ namespace transport
std::unordered_map<uint64_t, std::shared_ptr<SSU2Session> > m_Sessions;
std::unordered_map<i2p::data::IdentHash, std::shared_ptr<SSU2Session> > m_SessionsByRouterHash;
std::map<boost::asio::ip::udp::endpoint, std::shared_ptr<SSU2Session> > m_PendingOutgoingSessions;
mutable std::mutex m_PendingOutgoingSessionsMutex;
std::map<boost::asio::ip::udp::endpoint, std::pair<uint64_t, uint32_t> > m_IncomingTokens, m_OutgoingTokens; // remote endpoint -> (token, expires in seconds)
std::map<uint32_t, std::shared_ptr<SSU2Session> > m_Relays; // we are introducer, relay tag -> session
std::list<i2p::data::IdentHash> m_Introducers, m_IntroducersV6; // introducers we are connected to

31
libi2pd/SSU2Session.cpp
View file

@ -878,7 +878,7 @@ namespace transport
// fragmented
if (numFragments > 2)
{
LogPrint (eLogError, "SSU2: Too many fragments ", numFragments, " in SessionConfirmed");
LogPrint (eLogError, "SSU2: Too many fragments ", (int)numFragments, " in SessionConfirmed from ", m_RemoteEndpoint);
return false;
}
if (len < 32)
@ -1462,12 +1462,19 @@ namespace transport
m_IsDataReceived = true;
break;
case eSSU2BlkTermination:
LogPrint (eLogDebug, "SSU2: Termination reason=", (int)buf[11]);
if (IsEstablished () && buf[11] != eSSU2TerminationReasonTerminationReceived)
{
uint8_t rsn = buf[11]; // reason
LogPrint (eLogDebug, "SSU2: Termination reason=", (int)rsn);
if (IsEstablished () && rsn != eSSU2TerminationReasonTerminationReceived)
RequestTermination (eSSU2TerminationReasonTerminationReceived);
else
else if (m_State != eSSU2SessionStateTerminated)
{
if (m_State == eSSU2SessionStateClosing && rsn == eSSU2TerminationReasonTerminationReceived)
m_State = eSSU2SessionStateClosingConfirmed;
Done ();
}
break;
}
case eSSU2BlkRelayRequest:
LogPrint (eLogDebug, "SSU2: RelayRequest");
HandleRelayRequest (buf + offset, size);
@ -1623,7 +1630,7 @@ namespace transport
if (ts > it1->second->sendTime)
{
auto rtt = ts - it1->second->sendTime;
m_RTT = (m_RTT*m_SendPacketNum + rtt)/(m_SendPacketNum + 1);
m_RTT = std::round ((m_RTT*m_SendPacketNum + rtt)/(m_SendPacketNum + 1.0));
m_RTO = m_RTT*SSU2_kAPPA;
if (m_RTO < SSU2_MIN_RTO) m_RTO = SSU2_MIN_RTO;
if (m_RTO > SSU2_MAX_RTO) m_RTO = SSU2_MAX_RTO;
@ -1656,13 +1663,23 @@ namespace transport
{
if (isV4)
{
if (i2p::context.GetStatus () == eRouterStatusTesting)
if (i2p::context.GetStatus () == eRouterStatusTesting ||
m_State == eSSU2SessionStatePeerTest)
{
i2p::context.SetError (eRouterErrorSymmetricNAT);
i2p::context.SetStatus (eRouterStatusFirewalled);
m_Server.RescheduleIntroducersUpdateTimer ();
}
}
else
{
if (i2p::context.GetStatusV6 () == eRouterStatusTesting)
if (i2p::context.GetStatusV6 () == eRouterStatusTesting ||
m_State == eSSU2SessionStatePeerTest)
{
i2p::context.SetErrorV6 (eRouterErrorSymmetricNAT);
i2p::context.SetStatusV6 (eRouterStatusFirewalled);
m_Server.RescheduleIntroducersUpdateTimerV6 ();
}
}
}
else

1
libi2pd/SSU2Session.h
View file

@ -100,6 +100,7 @@ namespace transport
eSSU2SessionStateSessionConfirmedSent,
eSSU2SessionStateEstablished,
eSSU2SessionStateClosing,
eSSU2SessionStateClosingConfirmed,
eSSU2SessionStateTerminated,
eSSU2SessionStateFailed,
eSSU2SessionStateIntroduced,

2
libi2pd/Streaming.cpp
View file

@ -435,7 +435,7 @@ namespace stream
LogPrint(eLogError, "Streaming: Packet ", seqn, "sent from the future, sendTime=", sentPacket->sendTime);
rtt = 1;
}
m_RTT = (m_RTT*seqn + rtt)/(seqn + 1);
m_RTT = std::round ((m_RTT*seqn + rtt)/(seqn + 1.0));
m_RTO = m_RTT*1.5; // TODO: implement it better
LogPrint (eLogDebug, "Streaming: Packet ", seqn, " acknowledged rtt=", rtt, " sentTime=", sentPacket->sendTime);
m_SentPackets.erase (it++);

1
libi2pd/TransportSession.h
View file

@ -113,6 +113,7 @@ namespace transport
virtual uint32_t GetRelayTag () const { return 0; };
virtual void SendLocalRouterInfo (bool update = false) { SendI2NPMessages ({ CreateDatabaseStoreMsg () }); };
virtual void SendI2NPMessages (const std::vector<std::shared_ptr<I2NPMessage> >& msgs) = 0;
virtual bool IsEstablished () const = 0;
protected:

5
libi2pd/Transports.cpp
View file

@ -743,6 +743,11 @@ namespace transport
auto ts = i2p::util::GetSecondsSinceEpoch ();
for (auto it = m_Peers.begin (); it != m_Peers.end (); )
{
it->second.sessions.remove_if (
[](std::shared_ptr<TransportSession> session)->bool
{
return !session || !session->IsEstablished ();
});
if (it->second.sessions.empty () && 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");

2
libi2pd/util.h
View file

@ -112,7 +112,7 @@ namespace util
};
template<class T>
class MemoryPoolMt: public MemoryPool<T>
class MemoryPoolMt: private MemoryPool<T>
{
public:

1
libi2pd_client/HTTPProxy.cpp
View file

@ -252,6 +252,7 @@ namespace proxy {
req.RemoveHeader("From");
req.RemoveHeader("Forwarded");
req.RemoveHeader("DNT"); // Useless DoNotTrack flag
req.RemoveHeader("X-Requested-With"); // Android Webview send this with the value set to the application ID
req.RemoveHeader("Accept", "Accept-Encoding"); // Accept*, but Accept-Encoding
/* drop proxy-disclosing headers */
req.RemoveHeader("X-Forwarded");