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select first hop for inbound tunnel from connected peers

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orignal 2015-06-07 08:37:34 -04:00
parent 9a9b38a8c3
commit c896f6d0d7
2 changed files with 45 additions and 53 deletions
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93
TunnelPool.cpp
View file

@ -70,7 +70,7 @@ namespace tunnel
std::unique_lock<std::mutex> l(m_OutboundTunnelsMutex); std::unique_lock<std::mutex> l(m_OutboundTunnelsMutex);
m_OutboundTunnels.insert (createdTunnel); m_OutboundTunnels.insert (createdTunnel);
} }
CreatePairedInboundTunnel (createdTunnel); //CreatePairedInboundTunnel (createdTunnel);
} }
void TunnelPool::TunnelExpired (std::shared_ptr<OutboundTunnel> expiredTunnel) void TunnelPool::TunnelExpired (std::shared_ptr<OutboundTunnel> expiredTunnel)
@ -291,40 +291,50 @@ namespace tunnel
return hop; return hop;
} }
bool TunnelPool::SelectPeers (std::vector<std::shared_ptr<const i2p::data::RouterInfo> >& hops)
{
auto prevHop = i2p::context.GetSharedRouterInfo ();
int numHops = m_NumInboundHops;
if (i2p::transport::transports.GetNumPeers () > 25)
{
auto r = i2p::transport::transports.GetRandomPeer ();
if (r && !r->GetProfile ()->IsBad ())
{
prevHop = r;
hops.push_back (r);
numHops--;
}
}
for (int i = 0; i < numHops; i++)
{
auto hop = SelectNextHop (prevHop);
if (!hop)
{
LogPrint (eLogError, "Can't select next hop");
return false;
}
prevHop = hop;
hops.push_back (hop);
}
return true;
}
void TunnelPool::CreateInboundTunnel () void TunnelPool::CreateInboundTunnel ()
{ {
auto outboundTunnel = GetNextOutboundTunnel (); auto outboundTunnel = GetNextOutboundTunnel ();
if (!outboundTunnel) if (!outboundTunnel)
outboundTunnel = tunnels.GetNextOutboundTunnel (); outboundTunnel = tunnels.GetNextOutboundTunnel ();
LogPrint ("Creating destination inbound tunnel..."); LogPrint ("Creating destination inbound tunnel...");
auto prevHop = i2p::context.GetSharedRouterInfo ();
std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops; std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops;
int numHops = m_NumInboundHops; if (SelectPeers (hops))
if (outboundTunnel)
{ {
// last hop std::reverse (hops.begin (), hops.end ());
auto hop = outboundTunnel->GetTunnelConfig ()->GetFirstHop ()->router; auto tunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig> (hops), outboundTunnel);
if (hop->GetIdentHash () != i2p::context.GetIdentHash ()) // outbound shouldn't be zero-hop tunnel tunnel->SetTunnelPool (shared_from_this ());
{
prevHop = hop;
hops.push_back (prevHop);
numHops--;
}
} }
for (int i = 0; i < numHops; i++) else
{ LogPrint (eLogError, "Can't create inbound tunnel. No peers available");
auto hop = SelectNextHop (prevHop);
if (!hop)
{
LogPrint (eLogError, "Can't select next hop for inbound tunnel");
return;
}
prevHop = hop;
hops.push_back (hop);
}
std::reverse (hops.begin (), hops.end ());
auto tunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig> (hops), outboundTunnel);
tunnel->SetTunnelPool (shared_from_this ());
} }
void TunnelPool::RecreateInboundTunnel (std::shared_ptr<InboundTunnel> tunnel) void TunnelPool::RecreateInboundTunnel (std::shared_ptr<InboundTunnel> tunnel)
@ -345,34 +355,15 @@ namespace tunnel
if (inboundTunnel) if (inboundTunnel)
{ {
LogPrint ("Creating destination outbound tunnel..."); LogPrint ("Creating destination outbound tunnel...");
int numHops = m_NumOutboundHops;
auto prevHop = i2p::context.GetSharedRouterInfo ();
std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops; std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops;
if (i2p::transport::transports.GetNumPeers () > 25) if (SelectPeers (hops))
{ {
auto r = i2p::transport::transports.GetRandomPeer (); auto tunnel = tunnels.CreateTunnel<OutboundTunnel> (
if (r) std::make_shared<TunnelConfig> (hops, inboundTunnel->GetTunnelConfig ()));
{ tunnel->SetTunnelPool (shared_from_this ());
prevHop = r;
hops.push_back (r);
numHops--;
}
} }
for (int i = 0; i < numHops; i++) else
{ LogPrint (eLogError, "Can't create outbound tunnel. No peers available");
auto hop = SelectNextHop (prevHop);
if (!hop)
{
LogPrint (eLogError, "Can't select next hop for outbound tunnel");
return;
}
prevHop = hop;
hops.push_back (hop);
}
auto tunnel = tunnels.CreateTunnel<OutboundTunnel> (
std::make_shared<TunnelConfig> (hops, inboundTunnel->GetTunnelConfig ()));
tunnel->SetTunnelPool (shared_from_this ());
} }
else else
LogPrint (eLogError, "Can't create outbound tunnel. No inbound tunnels found"); LogPrint (eLogError, "Can't create outbound tunnel. No inbound tunnels found");

1
TunnelPool.h
View file

@ -61,6 +61,7 @@ namespace tunnel
template<class TTunnels> template<class TTunnels>
typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels, typename TTunnels::value_type excluded) const; typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels, typename TTunnels::value_type excluded) const;
std::shared_ptr<const i2p::data::RouterInfo> SelectNextHop (std::shared_ptr<const i2p::data::RouterInfo> prevHop) const; std::shared_ptr<const i2p::data::RouterInfo> SelectNextHop (std::shared_ptr<const i2p::data::RouterInfo> prevHop) const;
bool SelectPeers (std::vector<std::shared_ptr<const i2p::data::RouterInfo> >& hops);
private: private: