PurpleI2P
/
i2pd
mirror of https://github.com/PurpleI2P/i2pd.git
1
0
Fork 0
Code Issues Releases Activity
Browse Source

generic SSU timer

pull/51/head
orignal 11 years ago
parent
c600be59b1
commit
4970b4d14e
2 changed files with 32 additions and 32 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 58
      SSU.cpp
  2. 6
      SSU.h

58
SSU.cpp
Unescape View File

@ -14,16 +14,14 @@ namespace i2p
namespace ssu namespace ssu
{ {
SSUSession::SSUSession (SSUServer * server, boost::asio::ip::udp::endpoint& remoteEndpoint, SSUSession::SSUSession (SSUServer& server, boost::asio::ip::udp::endpoint& remoteEndpoint,
const i2p::data::RouterInfo * router): m_Server (server), m_RemoteEndpoint (remoteEndpoint), const i2p::data::RouterInfo * router): m_Server (server), m_RemoteEndpoint (remoteEndpoint),
m_RemoteRouter (router), m_ConnectTimer (nullptr),m_State (eSessionStateUnknown) m_RemoteRouter (router), m_Timer (m_Server.GetService ()), m_State (eSessionStateUnknown)
{ {
} }
SSUSession::~SSUSession () SSUSession::~SSUSession ()
{ {
if (m_ConnectTimer)
delete m_ConnectTimer;
} }
void SSUSession::CreateAESandMacKey (uint8_t * pubKey, uint8_t * aesKey, uint8_t * macKey) void SSUSession::CreateAESandMacKey (uint8_t * pubKey, uint8_t * aesKey, uint8_t * macKey)
@ -110,8 +108,7 @@ namespace ssu
case PAYLOAD_TYPE_SESSION_DESTROYED: case PAYLOAD_TYPE_SESSION_DESTROYED:
{ {
LogPrint ("SSU session destroy received"); LogPrint ("SSU session destroy received");
if (m_Server) m_Server.DeleteSession (this); // delete this
m_Server->DeleteSession (this); // delete this
break; break;
} }
case PAYLOAD_TYPE_RELAY_INTRO: case PAYLOAD_TYPE_RELAY_INTRO:
@ -166,7 +163,7 @@ namespace ssu
{ {
m_State = eSessionStateCreatedReceived; m_State = eSessionStateCreatedReceived;
LogPrint ("Session created received"); LogPrint ("Session created received");
if (m_ConnectTimer) m_ConnectTimer->cancel (); m_Timer.cancel (); // connect timer
uint8_t signedData[532]; // x,y, our IP, our port, remote IP, remote port, relayTag, signed on time uint8_t signedData[532]; // x,y, our IP, our port, remote IP, remote port, relayTag, signed on time
uint8_t * payload = buf + sizeof (SSUHeader); uint8_t * payload = buf + sizeof (SSUHeader);
uint8_t * y = payload; uint8_t * y = payload;
@ -245,7 +242,7 @@ namespace ssu
FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_REQUEST, buf, 304, introKey, iv, introKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_REQUEST, buf, 304, introKey, iv, introKey);
m_State = eSessionStateRequestSent; m_State = eSessionStateRequestSent;
m_Server->Send (buf, 304, m_RemoteEndpoint); m_Server.Send (buf, 304, m_RemoteEndpoint);
} }
void SSUSession::SendRelayRequest (const i2p::data::RouterInfo::Introducer& introducer) void SSUSession::SendRelayRequest (const i2p::data::RouterInfo::Introducer& introducer)
@ -276,7 +273,7 @@ namespace ssu
rnd.GenerateBlock (iv, 16); // random iv rnd.GenerateBlock (iv, 16); // random iv
FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_REQUEST, buf, 96, introducer.iKey, iv, introducer.iKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_RELAY_REQUEST, buf, 96, introducer.iKey, iv, introducer.iKey);
m_State = eSessionRelayRequestSent; m_State = eSessionRelayRequestSent;
m_Server->Send (buf, 96, m_RemoteEndpoint); m_Server.Send (buf, 96, m_RemoteEndpoint);
} }
void SSUSession::SendSessionCreated (const uint8_t * x) void SSUSession::SendSessionCreated (const uint8_t * x)
@ -323,7 +320,7 @@ namespace ssu
// encrypt message with intro key // encrypt message with intro key
FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CREATED, buf, 368, introKey, iv, introKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CREATED, buf, 368, introKey, iv, introKey);
m_State = eSessionStateCreatedSent; m_State = eSessionStateCreatedSent;
m_Server->Send (buf, 368, m_RemoteEndpoint); m_Server.Send (buf, 368, m_RemoteEndpoint);
} }
void SSUSession::SendSessionConfirmed (const uint8_t * y, const uint8_t * ourAddress, uint32_t relayTag) void SSUSession::SendSessionConfirmed (const uint8_t * y, const uint8_t * ourAddress, uint32_t relayTag)
@ -362,7 +359,7 @@ namespace ssu
// encrypt message with session key // encrypt message with session key
FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CONFIRMED, buf, 480, m_SessionKey, iv, m_MacKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_SESSION_CONFIRMED, buf, 480, m_SessionKey, iv, m_MacKey);
m_State = eSessionStateConfirmedSent; m_State = eSessionStateConfirmedSent;
m_Server->Send (buf, 480, m_RemoteEndpoint); m_Server.Send (buf, 480, m_RemoteEndpoint);
} }
void SSUSession::ProcessRelayResponse (uint8_t * buf, size_t len) void SSUSession::ProcessRelayResponse (uint8_t * buf, size_t len)
@ -390,7 +387,7 @@ namespace ssu
uint16_t remotePort = be16toh (*(uint16_t *)(payload)); uint16_t remotePort = be16toh (*(uint16_t *)(payload));
payload += 2; payload += 2;
boost::asio::ip::udp::endpoint newRemoteEndpoint(remoteIP, remotePort); boost::asio::ip::udp::endpoint newRemoteEndpoint(remoteIP, remotePort);
m_Server->ReassignSession (m_RemoteEndpoint, newRemoteEndpoint); m_Server.ReassignSession (m_RemoteEndpoint, newRemoteEndpoint);
m_RemoteEndpoint = newRemoteEndpoint; m_RemoteEndpoint = newRemoteEndpoint;
payload++; payload++;
boost::asio::ip::address_v4 ourIP (be32toh (*(uint32_t* )(payload))); boost::asio::ip::address_v4 ourIP (be32toh (*(uint32_t* )(payload)));
@ -494,13 +491,10 @@ namespace ssu
{ {
if (m_State == eSessionStateUnknown) if (m_State == eSessionStateUnknown)
{ {
if (m_Server) // set connect timer
{ m_Timer.expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT));
m_ConnectTimer = new boost::asio::deadline_timer (m_Server->GetService ()); m_Timer.async_wait (boost::bind (&SSUSession::HandleConnectTimer,
m_ConnectTimer->expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT)); this, boost::asio::placeholders::error));
m_ConnectTimer->async_wait (boost::bind (&SSUSession::HandleConnectTimer,
this, boost::asio::placeholders::error));
}
SendSessionRequest (); SendSessionRequest ();
} }
} }
@ -516,8 +510,15 @@ namespace ssu
} }
void SSUSession::ConnectThroughIntroducer (const i2p::data::RouterInfo::Introducer& introducer) void SSUSession::ConnectThroughIntroducer (const i2p::data::RouterInfo::Introducer& introducer)
{ {
SendRelayRequest (introducer); if (m_State == eSessionStateUnknown)
{
// set connect timer
m_Timer.expires_from_now (boost::posix_time::seconds(SSU_CONNECT_TIMEOUT));
m_Timer.async_wait (boost::bind (&SSUSession::HandleConnectTimer,
this, boost::asio::placeholders::error));
SendRelayRequest (introducer);
}
} }
void SSUSession::Close () void SSUSession::Close ()
@ -548,8 +549,7 @@ namespace ssu
{ {
m_State = eSessionStateFailed; m_State = eSessionStateFailed;
Close (); Close ();
if (m_Server) m_Server.DeleteSession (this); // delete this
m_Server->DeleteSession (this); // delete this
} }
} }
@ -692,7 +692,7 @@ namespace ssu
rnd.GenerateBlock (iv, 16); // random iv rnd.GenerateBlock (iv, 16); // random iv
// encrypt message with session key // encrypt message with session key
FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, 48, m_SessionKey, iv, m_MacKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, 48, m_SessionKey, iv, m_MacKey);
m_Server->Send (buf, 48, m_RemoteEndpoint); m_Server.Send (buf, 48, m_RemoteEndpoint);
} }
void SSUSession::SendSesionDestroyed () void SSUSession::SendSesionDestroyed ()
@ -715,7 +715,7 @@ namespace ssu
return; return;
} }
} }
m_Server->Send (buf, 48, m_RemoteEndpoint); m_Server.Send (buf, 48, m_RemoteEndpoint);
} }
void SSUSession::Send (i2p::I2NPMessage * msg) void SSUSession::Send (i2p::I2NPMessage * msg)
@ -755,7 +755,7 @@ namespace ssu
rnd.GenerateBlock (iv, 16); // random iv rnd.GenerateBlock (iv, 16); // random iv
// encrypt message with session key // encrypt message with session key
FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, size, m_SessionKey, iv, m_MacKey); FillHeaderAndEncrypt (PAYLOAD_TYPE_DATA, buf, size, m_SessionKey, iv, m_MacKey);
m_Server->Send (buf, size, m_RemoteEndpoint); m_Server.Send (buf, size, m_RemoteEndpoint);
if (!isLast) if (!isLast)
{ {
@ -815,7 +815,7 @@ namespace ssu
session = it->second; session = it->second;
if (!session) if (!session)
{ {
session = new SSUSession (this, m_SenderEndpoint); session = new SSUSession (*this, m_SenderEndpoint);
m_Sessions[m_SenderEndpoint] = session; m_Sessions[m_SenderEndpoint] = session;
LogPrint ("New SSU session from ", m_SenderEndpoint.address ().to_string (), ":", m_SenderEndpoint.port (), " created"); LogPrint ("New SSU session from ", m_SenderEndpoint.address ().to_string (), ":", m_SenderEndpoint.port (), " created");
} }
@ -856,7 +856,7 @@ namespace ssu
if (!router->UsesIntroducer ()) if (!router->UsesIntroducer ())
{ {
// connect directly // connect directly
session = new SSUSession (this, remoteEndpoint, router); session = new SSUSession (*this, remoteEndpoint, router);
m_Sessions[remoteEndpoint] = session; m_Sessions[remoteEndpoint] = session;
LogPrint ("New SSU session to [", router->GetIdentHashAbbreviation (), "] ", LogPrint ("New SSU session to [", router->GetIdentHashAbbreviation (), "] ",
remoteEndpoint.address ().to_string (), ":", remoteEndpoint.port (), " created"); remoteEndpoint.address ().to_string (), ":", remoteEndpoint.port (), " created");
@ -869,7 +869,7 @@ namespace ssu
{ {
auto& introducer = address->introducers[0]; // TODO: auto& introducer = address->introducers[0]; // TODO:
boost::asio::ip::udp::endpoint introducerEndpoint (introducer.iHost, introducer.iPort); boost::asio::ip::udp::endpoint introducerEndpoint (introducer.iHost, introducer.iPort);
session = new SSUSession (this, introducerEndpoint, router); session = new SSUSession (*this, introducerEndpoint, router);
m_Sessions[introducerEndpoint] = session; m_Sessions[introducerEndpoint] = session;
LogPrint ("New SSU session to [", router->GetIdentHashAbbreviation (), LogPrint ("New SSU session to [", router->GetIdentHashAbbreviation (),
"] through introducer ", introducerEndpoint.address ().to_string (), ":", introducerEndpoint.port ()); "] through introducer ", introducerEndpoint.address ().to_string (), ":", introducerEndpoint.port ());

6
SSU.h
Unescape View File

@ -68,7 +68,7 @@ namespace ssu
{ {
public: public:
SSUSession (SSUServer * server, boost::asio::ip::udp::endpoint& remoteEndpoint, SSUSession (SSUServer& server, boost::asio::ip::udp::endpoint& remoteEndpoint,
const i2p::data::RouterInfo * router = nullptr); const i2p::data::RouterInfo * router = nullptr);
void ProcessNextMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); void ProcessNextMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint);
~SSUSession (); ~SSUSession ();
@ -109,10 +109,10 @@ namespace ssu
private: private:
SSUServer * m_Server; SSUServer& m_Server;
boost::asio::ip::udp::endpoint m_RemoteEndpoint; boost::asio::ip::udp::endpoint m_RemoteEndpoint;
const i2p::data::RouterInfo * m_RemoteRouter; const i2p::data::RouterInfo * m_RemoteRouter;
boost::asio::deadline_timer * m_ConnectTimer; boost::asio::deadline_timer m_Timer;
SessionState m_State; SessionState m_State;
CryptoPP::CBC_Mode<CryptoPP::AES>::Encryption m_Encryption; CryptoPP::CBC_Mode<CryptoPP::AES>::Encryption m_Encryption;
CryptoPP::CBC_Mode<CryptoPP::AES>::Decryption m_Decryption; CryptoPP::CBC_Mode<CryptoPP::AES>::Decryption m_Decryption;

Write Preview
Loading…
Cancel
Save