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Transports priority for peer

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pull/1794/head
orignal 2 years ago
parent e338ce7da9
commit cef2263a7f
2 changed files with 96 additions and 114 deletions
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202
libi2pd/Transports.cpp
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@ -417,8 +417,7 @@ namespace transport
{
auto ts = i2p::util::GetSecondsSinceEpoch ();
std::unique_lock<std::mutex> l(m_PeersMutex);
it = m_Peers.insert (std::pair<i2p::data::IdentHash, Peer>(ident, { 0, r, {},
ts, ts + PEER_ROUTER_INFO_UPDATE_INTERVAL, {} })).first;
it = m_Peers.insert (std::pair<i2p::data::IdentHash, Peer>(ident, {r, ts})).first;
}
connected = ConnectToPeer (ident, it->second);
}
@ -453,127 +452,81 @@ namespace transport
peer.router = netdb.FindRouter (ident); // try to get new one from netdb
if (peer.router) // we have RI already
{
if (peer.numAttempts < 2) // NTCP2, 0 - ipv6, 1 - ipv4
if (peer.priority.empty ())
SetPriority (peer);
while (peer.numAttempts < (int)peer.priority.size ())
{
if (m_NTCP2Server) // we support NTCP2
auto tr = peer.priority[peer.numAttempts];
peer.numAttempts++;
switch (tr)
{
std::shared_ptr<const RouterInfo::Address> address;
if (!peer.numAttempts) // NTCP2 ipv6
{
if (context.GetRouterInfo ().IsNTCP2V6 () && peer.router->IsReachableBy (RouterInfo::eNTCP2V6))
case i2p::data::RouterInfo::eNTCP2V4:
case i2p::data::RouterInfo::eNTCP2V6:
{
if (!m_NTCP2Server) continue;
std::shared_ptr<const RouterInfo::Address> address = (tr == i2p::data::RouterInfo::eNTCP2V6) ?
peer.router->GetPublishedNTCP2V6Address () : peer.router->GetPublishedNTCP2V4Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
if (address)
{
address = peer.router->GetPublishedNTCP2V6Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
auto s = std::make_shared<NTCP2Session> (*m_NTCP2Server, peer.router, address);
if( m_NTCP2Server->UsingProxy())
m_NTCP2Server->ConnectWithProxy(s);
else
m_NTCP2Server->Connect (s);
return true;
}
peer.numAttempts++;
break;
}
if (!address && peer.numAttempts == 1) // NTCP2 ipv4
case i2p::data::RouterInfo::eSSU2V4:
case i2p::data::RouterInfo::eSSU2V6:
{
if (context.GetRouterInfo ().IsNTCP2 (true) && peer.router->IsReachableBy (RouterInfo::eNTCP2V4))
if (!m_SSU2Server) continue;
std::shared_ptr<const RouterInfo::Address> address = (tr == i2p::data::RouterInfo::eSSU2V6) ?
peer.router->GetSSU2V6Address () : peer.router->GetSSU2V4Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
if (address && address->IsReachableSSU ())
{
address = peer.router->GetPublishedNTCP2V4Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
if (m_SSU2Server->CreateSession (peer.router, address))
return true;
}
peer.numAttempts++;
}
if (address)
break;
}
case i2p::data::RouterInfo::eSSUV4:
case i2p::data::RouterInfo::eSSUV6:
{
auto s = std::make_shared<NTCP2Session> (*m_NTCP2Server, peer.router, address);
if( m_NTCP2Server->UsingProxy())
m_NTCP2Server->ConnectWithProxy(s);
else
m_NTCP2Server->Connect (s);
return true;
}
}
else
peer.numAttempts = 2; // switch to SSU
}
if (peer.numAttempts == 2 || peer.numAttempts == 3) // SSU2, 2 - ipv6, 3 - ipv4
{
if (m_SSU2Server)
{
std::shared_ptr<const RouterInfo::Address> address;
if (peer.numAttempts == 2) // SSU2 ipv6
{
if (context.GetRouterInfo ().IsSSU2V6 () && peer.router->IsReachableBy (RouterInfo::eSSU2V6))
if (!m_SSUServer) continue;
std::shared_ptr<const RouterInfo::Address> address = (tr == i2p::data::RouterInfo::eSSUV6) ?
peer.router->GetSSUV6Address () : peer.router->GetSSUAddress (true);
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
if (address && address->IsReachableSSU ())
{
address = peer.router->GetSSU2V6Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
if (m_SSUServer->CreateSession (peer.router, address))
return true;
}
peer.numAttempts++;
}
if (!address && peer.numAttempts == 3) // SSU2 ipv4
break;
}
case i2p::data::RouterInfo::eNTCP2V6Mesh:
{
if (context.GetRouterInfo ().IsSSU2V4 () && peer.router->IsReachableBy (RouterInfo::eSSU2V4))
if (!m_NTCP2Server) continue;
auto address = peer.router->GetYggdrasilAddress ();
if (address)
{
address = peer.router->GetSSU2V4Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
}
peer.numAttempts++;
}
if (address && address->IsReachableSSU ())
{
if (m_SSU2Server->CreateSession (peer.router, address))
return true;
}
}
else
peer.numAttempts += 2; // switch to mesh
}
if (peer.numAttempts == 4) // Mesh
{
peer.numAttempts++;
if (m_NTCP2Server && context.GetRouterInfo ().IsMesh () && peer.router->IsMesh ())
{
auto address = peer.router->GetYggdrasilAddress ();
if (address)
{
auto s = std::make_shared<NTCP2Session> (*m_NTCP2Server, peer.router, address);
m_NTCP2Server->Connect (s);
return true;
}
}
}
if (peer.numAttempts == 5 || peer.numAttempts == 6) // SSU, 5 - ipv6, 6 - ipv4
{
if (m_SSUServer)
{
std::shared_ptr<const RouterInfo::Address> address;
if (peer.numAttempts == 5) // SSU ipv6
{
if (context.GetRouterInfo ().IsSSUV6 () && peer.router->IsReachableBy (RouterInfo::eSSUV6))
{
address = peer.router->GetSSUV6Address ();
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
}
peer.numAttempts++;
}
if (!address && peer.numAttempts == 6) // SSU ipv4
{
if (context.GetRouterInfo ().IsSSU (true) && peer.router->IsReachableBy (RouterInfo::eSSUV4))
{
address = peer.router->GetSSUAddress (true);
if (address && m_CheckReserved && i2p::util::net::IsInReservedRange(address->host))
address = nullptr;
}
peer.numAttempts++;
}
if (address && address->IsReachableSSU ())
{
if (m_SSUServer->CreateSession (peer.router, address))
auto s = std::make_shared<NTCP2Session> (*m_NTCP2Server, peer.router, address);
m_NTCP2Server->Connect (s);
return true;
}
}
else
peer.numAttempts += 2;
}
LogPrint (eLogInfo, "Transports: No compatble NTCP2 or SSU addresses available");
}
break;
}
default:
LogPrint (eLogError, "Transports: Unknown transport ", (int)tr);
}
}
LogPrint (eLogInfo, "Transports: No compatible addresses available");
i2p::data::netdb.SetUnreachable (ident, true); // we are here because all connection attempts failed
peer.Done ();
std::unique_lock<std::mutex> l(m_PeersMutex);
@ -585,10 +538,32 @@ namespace transport
LogPrint (eLogInfo, "Transports: RouterInfo for ", ident.ToBase64 (), " not found, requested");
i2p::data::netdb.RequestDestination (ident, std::bind (
&Transports::RequestComplete, this, std::placeholders::_1, ident));
}
}
return true;
}
}
void Transports::SetPriority (Peer& peer) const
{
static const std::vector<i2p::data::RouterInfo::SupportedTransports> ntcp2Priority =
{
i2p::data::RouterInfo::eNTCP2V6,
i2p::data::RouterInfo::eNTCP2V4,
i2p::data::RouterInfo::eSSU2V6,
i2p::data::RouterInfo::eSSU2V4,
i2p::data::RouterInfo::eNTCP2V6Mesh,
i2p::data::RouterInfo::eSSUV6,
i2p::data::RouterInfo::eSSUV4
};
if (!peer.router) return;
auto compatibleTransports = context.GetRouterInfo ().GetCompatibleTransports (false) &
peer.router->GetCompatibleTransports (true);
peer.numAttempts = 0;
peer.priority.clear ();
for (auto transport: ntcp2Priority)
if (transport & compatibleTransports)
peer.priority.push_back (transport);
}
void Transports::RequestComplete (std::shared_ptr<const i2p::data::RouterInfo> r, const i2p::data::IdentHash& ident)
{
m_Service->post (std::bind (&Transports::HandleRequestComplete, this, r, ident));
@ -779,8 +754,7 @@ namespace transport
session->SendI2NPMessages ({ CreateDatabaseStoreMsg () }); // send DatabaseStore
auto ts = i2p::util::GetSecondsSinceEpoch ();
std::unique_lock<std::mutex> l(m_PeersMutex);
m_Peers.insert (std::make_pair (ident, Peer{ 0, nullptr, { session },
ts, ts + PEER_ROUTER_INFO_UPDATE_INTERVAL, {} }));
m_Peers.insert (std::make_pair (ident, Peer{ nullptr, ts }));
}
});
}

8
libi2pd/Transports.h
Unescape Escape View File

@ -71,7 +71,14 @@ namespace transport
std::list<std::shared_ptr<TransportSession> > sessions;
uint64_t creationTime, nextRouterInfoUpdateTime;
std::vector<std::shared_ptr<i2p::I2NPMessage> > delayedMessages;
std::vector<i2p::data::RouterInfo::SupportedTransports> priority;
Peer (std::shared_ptr<const i2p::data::RouterInfo> r, uint64_t ts):
numAttempts (0), router (r), creationTime (ts),
nextRouterInfoUpdateTime (ts + PEER_ROUTER_INFO_UPDATE_INTERVAL)
{
}
void Done ()
{
for (auto& it: sessions)
@ -147,6 +154,7 @@ namespace transport
void HandleRequestComplete (std::shared_ptr<const i2p::data::RouterInfo> r, i2p::data::IdentHash ident);
void PostMessages (i2p::data::IdentHash ident, std::vector<std::shared_ptr<i2p::I2NPMessage> > msgs);
bool ConnectToPeer (const i2p::data::IdentHash& ident, Peer& peer);
void SetPriority (Peer& peer) const;
void HandlePeerCleanupTimer (const boost::system::error_code& ecode);
void HandlePeerTestTimer (const boost::system::error_code& ecode);

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