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create relay tag and relay request block

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orignal 2022-04-21 15:47:36 -04:00
parent 3e0f5d231d
commit c5d9d71a8a
2 changed files with 92 additions and 1 deletions
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8
libi2pd/SSU2.h
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@ -185,6 +185,7 @@ namespace transport
void HandleFirstFragment (const uint8_t * buf, size_t len);
void HandleFollowOnFragment (const uint8_t * buf, size_t len);
bool ConcatOutOfSequenceFragments (std::shared_ptr<SSU2IncompleteMessage> m); // true if message complete
void HandleRelayRequest (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);
@ -192,6 +193,7 @@ namespace transport
size_t CreateI2NPBlock (uint8_t * buf, size_t len, std::shared_ptr<I2NPMessage>&& msg);
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);
private:
@ -212,6 +214,7 @@ namespace transport
i2p::I2NPMessagesHandler m_Handler;
bool m_IsDataReceived;
size_t m_WindowSize;
uint32_t m_RelayTag;
};
class SSU2Server: private i2p::util::RunnableServiceWithWork
@ -246,6 +249,10 @@ namespace transport
void RemoveSession (uint64_t connID);
void AddPendingOutgoingSession (std::shared_ptr<SSU2Session> session);
void AddRelay (uint32_t tag, std::shared_ptr<SSU2Session> relay);
void RemoveRelay (uint32_t tag);
std::shared_ptr<SSU2Session> FindRelaySession (uint32_t tag);
void Send (const uint8_t * header, size_t headerLen, const uint8_t * payload, size_t payloadLen,
const boost::asio::ip::udp::endpoint& to);
void Send (const uint8_t * header, size_t headerLen, const uint8_t * headerX, size_t headerXLen,
@ -281,6 +288,7 @@ namespace transport
std::unordered_map<uint64_t, std::shared_ptr<SSU2Session> > m_Sessions;
std::map<boost::asio::ip::udp::endpoint, std::shared_ptr<SSU2Session> > m_PendingOutgoingSessions;
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
i2p::util::MemoryPoolMt<Packet> m_PacketsPool;
boost::asio::deadline_timer m_TerminationTimer, m_ResendTimer;
std::shared_ptr<SSU2Session> m_LastSession;