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send raw follow-on datagrams

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orignal 2020-06-09 21:48:47 -04:00
parent f077836bf5
commit a8f227f759
2 changed files with 19 additions and 5 deletions
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22
libi2pd_client/I2PTunnel.cpp
View file

@ -611,12 +611,23 @@ namespace client
void I2PUDPServerTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len) void I2PUDPServerTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)
{ {
std::lock_guard<std::mutex> lock(m_SessionsMutex); {
auto session = ObtainUDPSession(from, toPort, fromPort); std::lock_guard<std::mutex> lock(m_SessionsMutex);
session->IPSocket.send_to(boost::asio::buffer(buf, len), m_RemoteEndpoint); m_LastSession = ObtainUDPSession(from, toPort, fromPort);
session->LastActivity = i2p::util::GetMillisecondsSinceEpoch(); }
m_LastSession->IPSocket.send_to(boost::asio::buffer(buf, len), m_RemoteEndpoint);
m_LastSession->LastActivity = i2p::util::GetMillisecondsSinceEpoch();
} }
void I2PUDPServerTunnel::HandleRecvFromI2PRaw (uint16_t, uint16_t, const uint8_t * buf, size_t len)
{
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) { void I2PUDPServerTunnel::ExpireStale(const uint64_t delta) {
std::lock_guard<std::mutex> lock(m_SessionsMutex); std::lock_guard<std::mutex> lock(m_SessionsMutex);
uint64_t now = i2p::util::GetMillisecondsSinceEpoch(); uint64_t now = i2p::util::GetMillisecondsSinceEpoch();
@ -714,6 +725,7 @@ namespace client
m_LocalDest->Start(); m_LocalDest->Start();
auto dgram = m_LocalDest->CreateDatagramDestination(gzip); auto dgram = m_LocalDest->CreateDatagramDestination(gzip);
dgram->SetReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5)); dgram->SetReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
dgram->SetRawReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2PRaw, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
} }
I2PUDPServerTunnel::~I2PUDPServerTunnel() I2PUDPServerTunnel::~I2PUDPServerTunnel()
@ -821,7 +833,7 @@ namespace client
transferred = m_LocalSocket.receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), m_RecvEndpoint, 0, ec); transferred = m_LocalSocket.receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), m_RecvEndpoint, 0, ec);
remotePort = m_RecvEndpoint.port(); remotePort = m_RecvEndpoint.port();
// TODO: check remotePort // TODO: check remotePort
m_LocalDest->GetDatagramDestination()->SendDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort); m_LocalDest->GetDatagramDestination()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
numPackets++; numPackets++;
} }
if (numPackets) if (numPackets)

2
libi2pd_client/I2PTunnel.h
View file

@ -237,6 +237,7 @@ namespace client
private: private:
void HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len); 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); UDPSessionPtr ObtainUDPSession(const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort);
private: private:
@ -248,6 +249,7 @@ namespace client
std::mutex m_SessionsMutex; std::mutex m_SessionsMutex;
std::vector<UDPSessionPtr> m_Sessions; std::vector<UDPSessionPtr> m_Sessions;
std::shared_ptr<i2p::client::ClientDestination> m_LocalDest; std::shared_ptr<i2p::client::ClientDestination> m_LocalDest;
UDPSessionPtr m_LastSession;
}; };
class I2PUDPClientTunnel class I2PUDPClientTunnel