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save router's endpoint to profile and try to use it next time without requesting introducers

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orignal 2024-10-21 20:58:09 -04:00
parent a24e0eb2dc
commit ea14b00d63
4 changed files with 56 additions and 21 deletions
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59
libi2pd/SSU2.cpp
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@ -833,6 +833,29 @@ namespace transport
}
}
bool SSU2Server::CheckPendingOutgoingSession (const boost::asio::ip::udp::endpoint& ep, bool peerTest)
{
auto s = FindPendingOutgoingSession (ep);
if (s)
{
if (peerTest)
{
// if peer test requested add it to the list for pending session
auto onEstablished = s->GetOnEstablished ();
if (onEstablished)
s->SetOnEstablished ([s, onEstablished]()
{
onEstablished ();
s->SendPeerTest ();
});
else
s->SetOnEstablished ([s]() { s->SendPeerTest (); });
}
return true;
}
return false;
}
bool SSU2Server::CreateSession (std::shared_ptr<const i2p::data::RouterInfo> router,
std::shared_ptr<const i2p::data::RouterInfo::Address> address, bool peerTest)
{
@ -852,34 +875,28 @@ namespace transport
if (isValidEndpoint)
{
if (i2p::transport::transports.IsInReservedRange(address->host)) return false;
auto s = FindPendingOutgoingSession (boost::asio::ip::udp::endpoint (address->host, address->port));
if (s)
{
if (peerTest)
{
// if peer test requested add it to the list for pending session
auto onEstablished = s->GetOnEstablished ();
if (onEstablished)
s->SetOnEstablished ([s, onEstablished]()
{
onEstablished ();
s->SendPeerTest ();
});
else
s->SetOnEstablished ([s]() { s->SendPeerTest (); });
}
return false;
}
if (CheckPendingOutgoingSession (boost::asio::ip::udp::endpoint (address->host, address->port), peerTest)) return false;
}
auto session = std::make_shared<SSU2Session> (*this, router, address);
if (!isValidEndpoint && router->GetProfile ()->HasLastEndpoint (address->IsV4 ()))
{
// router doesn't publish endpoint, but we connected before and hole punch might be alive
const auto& ep = router->GetProfile ()->GetLastEndpoint ();
if (IsConnectedRecently (ep))
{
if (CheckPendingOutgoingSession (ep, peerTest)) return false;
session->SetRemoteEndpoint (ep);
isValidEndpoint = true;
}
}
if (peerTest)
session->SetOnEstablished ([session]() {session->SendPeerTest (); });
if (address->UsesIntroducer ())
GetService ().post (std::bind (&SSU2Server::ConnectThroughIntroducer, this, session));
else if (isValidEndpoint) // we can't connect without endpoint
if (isValidEndpoint) // we know endpoint
GetService ().post ([session]() { session->Connect (); });
else if (address->UsesIntroducer ()) // we don't know endpoint yet
GetService ().post (std::bind (&SSU2Server::ConnectThroughIntroducer, this, session));
else
return false;
}