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hanlde Ack block

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orignal 2022-03-30 15:03:45 -04:00
parent dd774b8dfd
commit f9925c7374
2 changed files with 43 additions and 7 deletions
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15
libi2pd/SSU2.h
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@ -94,7 +94,16 @@ namespace transport
uint8_t flags[3];
} h;
};
struct SentPacket
{
Header h;
uint8_t payload[SSU2_MTU];
size_t payloadLen;
uint32_t nextResendTime; // in seconds
int numResends;
};
public:
SSU2Session (SSU2Server& server, std::shared_ptr<const i2p::data::RouterInfo> in_RemoteRouter = nullptr,
@ -136,10 +145,11 @@ namespace transport
void SendTermination ();
bool HandlePayload (const uint8_t * buf, size_t len); // returns true is contains data
void HandleAck (const uint8_t * buf, size_t len);
bool ExtractEndpoint (const uint8_t * buf, size_t size, boost::asio::ip::udp::endpoint& ep);
std::shared_ptr<const i2p::data::RouterInfo> ExtractRouterInfo (const uint8_t * buf, size_t size);
void CreateNonce (uint64_t seqn, uint8_t * nonce);
void UpdateReceivePacketNum (uint32_t packetNum); // for Ack
bool UpdateReceivePacketNum (uint32_t packetNum); // for Ack, returns false if duplicate
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);
@ -157,6 +167,7 @@ namespace transport
uint8_t m_KeyDataSend[64], m_KeyDataReceive[64];
uint32_t m_SendPacketNum, m_ReceivePacketNum;
std::set<uint32_t> m_OutOfSequencePackets; // packet nums > receive packet num
std::map<uint32_t, std::shared_ptr<SentPacket> > m_SentPackets; // packetNum -> packet
i2p::I2NPMessagesHandler m_Handler;
};