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send datetime block after approximately every 250 packets

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orignal 2023-02-11 20:11:34 -05:00
parent 48a3c767e5
commit d79bdc9f66
2 changed files with 15 additions and 5 deletions
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17
libi2pd/SSU2Session.cpp
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@ -83,9 +83,9 @@ namespace transport
TransportSession (in_RemoteRouter, SSU2_CONNECT_TIMEOUT),
m_Server (server), m_Address (addr), m_RemoteTransports (0),
m_DestConnID (0), m_SourceConnID (0), m_State (eSSU2SessionStateUnknown),
m_SendPacketNum (0), m_ReceivePacketNum (0), m_IsDataReceived (false),
m_WindowSize (SSU2_MIN_WINDOW_SIZE), m_RTT (SSU2_RESEND_INTERVAL),
m_RTO (SSU2_RESEND_INTERVAL*SSU2_kAPPA), m_RelayTag (0),
m_SendPacketNum (0), m_ReceivePacketNum (0), m_LastDatetimeSentPacketNum (0),
m_IsDataReceived (false), m_WindowSize (SSU2_MIN_WINDOW_SIZE),
m_RTT (SSU2_RESEND_INTERVAL), m_RTO (SSU2_RESEND_INTERVAL*SSU2_kAPPA), m_RelayTag (0),
m_ConnectTimer (server.GetService ()), m_TerminationReason (eSSU2TerminationReasonNormalClose),
m_MaxPayloadSize (SSU2_MIN_PACKET_SIZE - IPV6_HEADER_SIZE - UDP_HEADER_SIZE - 32) // min size
{
@ -2806,7 +2806,16 @@ namespace transport
void SSU2Session::SendQuickAck ()
{
uint8_t payload[SSU2_MAX_PACKET_SIZE];
size_t payloadSize = CreateAckBlock (payload, m_MaxPayloadSize);
size_t payloadSize = 0;
if (m_SendPacketNum > m_LastDatetimeSentPacketNum + SSU2_SEND_DATETIME_NUM_PACKETS)
{
payload[0] = eSSU2BlkDateTime;
htobe16buf (payload + 1, 4);
htobe32buf (payload + 3, (i2p::util::GetMillisecondsSinceEpoch () + 500)/1000);
payloadSize += 7;
m_LastDatetimeSentPacketNum = m_SendPacketNum;
}
payloadSize += CreateAckBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize);
payloadSize += CreatePaddingBlock (payload + payloadSize, m_MaxPayloadSize - payloadSize);
SendData (payload, payloadSize);
}