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expire transit tunnel is not sent further

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orignal 2024-02-05 15:44:17 -05:00
parent ce35637866
commit be815804e6
1 changed files with 24 additions and 5 deletions
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29
libi2pd/I2NPProtocol.cpp
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@ -584,13 +584,14 @@ namespace i2p
memcpy (ivKey, noiseState.m_CK , 32);
// check if we accept this tunnel
std::shared_ptr<i2p::tunnel::TransitTunnel> transitTunnel;
uint8_t retCode = 0;
if (!i2p::context.AcceptsTunnels () || i2p::context.IsHighCongestion ())
retCode = 30;
if (!retCode)
{
// create new transit tunnel
auto transitTunnel = i2p::tunnel::CreateTransitTunnel (
transitTunnel = i2p::tunnel::CreateTransitTunnel (
bufbe32toh (clearText + SHORT_REQUEST_RECORD_RECEIVE_TUNNEL_OFFSET),
clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET,
bufbe32toh (clearText + SHORT_REQUEST_RECORD_NEXT_TUNNEL_OFFSET),
@ -624,11 +625,22 @@ namespace i2p
reply += SHORT_TUNNEL_BUILD_RECORD_SIZE;
}
// send reply
auto onDrop = [transitTunnel]()
{
if (transitTunnel)
{
auto t = transitTunnel->GetCreationTime ();
if (t > i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT)
// make transit tunnel expired
transitTunnel->SetCreationTime (t - i2p::tunnel::TUNNEL_EXPIRATION_TIMEOUT);
}
};
if (isEndpoint)
{
auto replyMsg = NewI2NPShortMessage ();
replyMsg->Concat (buf, len);
replyMsg->FillI2NPMessageHeader (eI2NPShortTunnelBuildReply, bufbe32toh (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET));
if (transitTunnel) replyMsg->onDrop = onDrop;
if (memcmp ((const uint8_t *)i2p::context.GetIdentHash (),
clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, 32)) // reply IBGW is not local?
{
@ -652,9 +664,12 @@ namespace i2p
}
}
else
transports.SendMessage (clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET,
CreateI2NPMessage (eI2NPShortTunnelBuild, buf, len,
bufbe32toh (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET)));
{
auto msg = CreateI2NPMessage (eI2NPShortTunnelBuild, buf, len,
bufbe32toh (clearText + SHORT_REQUEST_RECORD_SEND_MSG_ID_OFFSET));
if (transitTunnel) msg->onDrop = onDrop;
transports.SendMessage (clearText + SHORT_REQUEST_RECORD_NEXT_IDENT_OFFSET, msg);
}
return;
}
record += SHORT_TUNNEL_BUILD_RECORD_SIZE;
@ -714,7 +729,11 @@ namespace i2p
return msg;
}
else
return CreateTunnelGatewayMsg (tunnelID, msg->GetBuffer (), msg->GetLength ());
{
auto newMsg = CreateTunnelGatewayMsg (tunnelID, msg->GetBuffer (), msg->GetLength ());
if (msg->onDrop) newMsg->onDrop = msg->onDrop;
return newMsg;
}
}
std::shared_ptr<I2NPMessage> CreateTunnelGatewayMsg (uint32_t tunnelID, I2NPMessageType msgType,