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common termination timer for all NTCP sessions

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orignal 2016-08-17 10:58:57 -04:00
parent ac5394a1dc
commit 3d066ea1b8
2 changed files with 56 additions and 43 deletions
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21
NTCPSession.h
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@ -37,6 +37,7 @@ namespace transport
const size_t NTCP_MAX_MESSAGE_SIZE = 16384;
const size_t NTCP_BUFFER_SIZE = 4160; // fits 4 tunnel messages (4*1028)
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_BAN_EXPIRATION_TIMEOUT = 70; // in second
const int NTCP_CLOCK_SKEW = 60; // in seconds
@ -54,7 +55,9 @@ namespace transport
boost::asio::ip::tcp::socket& GetSocket () { return m_Socket; };
bool IsEstablished () const { return m_IsEstablished; };
bool IsTerminationTimeoutExpired (uint64_t ts) const
{ return ts >= m_LastActivityTimestamp + GetTerminationTimeout (); };
void ClientLogin ();
void ServerLogin ();
void SendI2NPMessages (const std::vector<std::shared_ptr<I2NPMessage> >& msgs);
@ -95,17 +98,12 @@ namespace transport
void Send (const std::vector<std::shared_ptr<I2NPMessage> >& msgs);
void HandleSent (const boost::system::error_code& ecode, std::size_t bytes_transferred, std::vector<std::shared_ptr<I2NPMessage> > msgs);
// timer
void ScheduleTermination ();
void HandleTerminationTimer (const boost::system::error_code& ecode);
private:
NTCPServer& m_Server;
boost::asio::ip::tcp::socket m_Socket;
boost::asio::deadline_timer m_TerminationTimer;
bool m_IsEstablished, m_IsTerminated;
uint64_t m_LastActivityTimestamp;
i2p::crypto::CBCDecryption m_Decryption;
i2p::crypto::CBCEncryption m_Encryption;
@ -146,8 +144,8 @@ namespace transport
std::shared_ptr<NTCPSession> FindNTCPSession (const i2p::data::IdentHash& ident);
void Connect (const boost::asio::ip::address& address, int port, std::shared_ptr<NTCPSession> conn);
bool IsBoundV4() const { return m_NTCPAcceptor != nullptr; };
bool IsBoundV6() const { return m_NTCPV6Acceptor != nullptr; };
bool IsBoundV4() const { return m_NTCPAcceptor != nullptr; };
bool IsBoundV6() const { return m_NTCPV6Acceptor != nullptr; };
boost::asio::io_service& GetService () { return m_Service; };
void Ban (const boost::asio::ip::address& addr);
@ -159,6 +157,10 @@ namespace transport
void HandleAcceptV6 (std::shared_ptr<NTCPSession> conn, const boost::system::error_code& error);
void HandleConnect (const boost::system::error_code& ecode, std::shared_ptr<NTCPSession> conn);
// timer
void ScheduleTermination ();
void HandleTerminationTimer (const boost::system::error_code& ecode);
private:
@ -166,6 +168,7 @@ namespace transport
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<i2p::data::IdentHash, std::shared_ptr<NTCPSession> > m_NTCPSessions; // access from m_Thread only
std::map<boost::asio::ip::address, uint32_t> m_BanList; // IP -> ban expiration time in seconds