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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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97
TunnelPool.cpp
View File

@ -70,7 +70,7 @@ namespace tunnel
std::unique_lock<std::mutex> l(m_OutboundTunnelsMutex);
m_OutboundTunnels.insert (createdTunnel);
}
CreatePairedInboundTunnel (createdTunnel);
//CreatePairedInboundTunnel (createdTunnel);
}
void TunnelPool::TunnelExpired (std::shared_ptr<OutboundTunnel> expiredTunnel)
@ -290,6 +290,35 @@ namespace tunnel
hop = i2p::data::netdb.GetRandomRouter ();
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 ()
{
@ -297,34 +326,15 @@ namespace tunnel
if (!outboundTunnel)
outboundTunnel = tunnels.GetNextOutboundTunnel ();
LogPrint ("Creating destination inbound tunnel...");
auto prevHop = i2p::context.GetSharedRouterInfo ();
std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops;
int numHops = m_NumInboundHops;
if (outboundTunnel)
{
// last hop
auto hop = outboundTunnel->GetTunnelConfig ()->GetFirstHop ()->router;
if (hop->GetIdentHash () != i2p::context.GetIdentHash ()) // outbound shouldn't be zero-hop tunnel
{
prevHop = hop;
hops.push_back (prevHop);
numHops--;
}
}
for (int i = 0; i < numHops; i++)
if (SelectPeers (hops))
{
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 ());
std::reverse (hops.begin (), hops.end ());
auto tunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig> (hops), outboundTunnel);
tunnel->SetTunnelPool (shared_from_this ());
}
else
LogPrint (eLogError, "Can't create inbound tunnel. No peers available");
}
void TunnelPool::RecreateInboundTunnel (std::shared_ptr<InboundTunnel> tunnel)
@ -345,34 +355,15 @@ namespace tunnel
if (inboundTunnel)
{
LogPrint ("Creating destination outbound tunnel...");
int numHops = m_NumOutboundHops;
auto prevHop = i2p::context.GetSharedRouterInfo ();
std::vector<std::shared_ptr<const i2p::data::RouterInfo> > hops;
if (i2p::transport::transports.GetNumPeers () > 25)
{
auto r = i2p::transport::transports.GetRandomPeer ();
if (r)
{
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 for outbound tunnel");
return;
}
prevHop = hop;
hops.push_back (hop);
if (SelectPeers (hops))
{
auto tunnel = tunnels.CreateTunnel<OutboundTunnel> (
std::make_shared<TunnelConfig> (hops, inboundTunnel->GetTunnelConfig ()));
tunnel->SetTunnelPool (shared_from_this ());
}
auto tunnel = tunnels.CreateTunnel<OutboundTunnel> (
std::make_shared<TunnelConfig> (hops, inboundTunnel->GetTunnelConfig ()));
tunnel->SetTunnelPool (shared_from_this ());
else
LogPrint (eLogError, "Can't create outbound tunnel. No peers available");
}
else
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>
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;
bool SelectPeers (std::vector<std::shared_ptr<const i2p::data::RouterInfo> >& hops);
private: