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support zero-hops tunnels for destinations

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This commit is contained in:
orignal 2016-06-29 11:26:46 -04:00
parent 14cdb531c8
commit f6e988d6fd
4 changed files with 47 additions and 18 deletions
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28
Tunnel.cpp
View file

@ -768,6 +768,22 @@ namespace tunnel
return newTunnel;
}
std::shared_ptr<InboundTunnel> Tunnels::CreateInboundTunnel (std::shared_ptr<TunnelConfig> config, std::shared_ptr<OutboundTunnel> outboundTunnel)
{
if (config->IsEmpty ())
return CreateZeroHopsInboundTunnel ();
else
return CreateTunnel<InboundTunnel>(config, outboundTunnel);
}
std::shared_ptr<OutboundTunnel> Tunnels::CreateOutboundTunnel (std::shared_ptr<TunnelConfig> config)
{
if (config->IsEmpty ())
return CreateZeroHopsOutboundTunnel ();
else
return CreateTunnel<OutboundTunnel>(config);
}
void Tunnels::AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr<InboundTunnel> tunnel)
{
m_PendingInboundTunnels[replyMsgID] = tunnel;
@ -815,20 +831,22 @@ namespace tunnel
}
void Tunnels::CreateZeroHopsInboundTunnel ()
std::shared_ptr<ZeroHopsInboundTunnel> Tunnels::CreateZeroHopsInboundTunnel ()
{
auto inboundTunnel = std::make_shared<ZeroHopsInboundTunnel> ();
inboundTunnel->SetState (eTunnelStateEstablished);
m_InboundTunnels.push_back (inboundTunnel);
m_Tunnels[inboundTunnel->GetTunnelID ()] = inboundTunnel;
return inboundTunnel;
}
void Tunnels::CreateZeroHopsOutboundTunnel ()
std::shared_ptr<ZeroHopsOutboundTunnel> Tunnels::CreateZeroHopsOutboundTunnel ()
{
auto outboundTunnel = std::make_shared<ZeroHopsOutboundTunnel> ();
outboundTunnel->SetState (eTunnelStateEstablished);
m_OutboundTunnels.push_back (outboundTunnel);
// we don't insert into m_Tunnels
return outboundTunnel;
}
int Tunnels::GetTransitTunnelsExpirationTimeout ()
@ -861,12 +879,6 @@ namespace tunnel
// TODO: locking
return m_OutboundTunnels.size();
}
#ifdef ANDROID_ARM7A
template std::shared_ptr<InboundTunnel> Tunnels::CreateTunnel<InboundTunnel>(std::shared_ptr<TunnelConfig>, std::shared_ptr<OutboundTunnel>);
template std::shared_ptr<OutboundTunnel> Tunnels::CreateTunnel<OutboundTunnel>(std::shared_ptr<TunnelConfig>, std::shared_ptr<OutboundTunnel>);
#endif
}
}

11
Tunnel.h
View file

@ -176,10 +176,10 @@ namespace tunnel
void AddTransitTunnel (std::shared_ptr<TransitTunnel> tunnel);
void AddOutboundTunnel (std::shared_ptr<OutboundTunnel> newTunnel);
void AddInboundTunnel (std::shared_ptr<InboundTunnel> newTunnel);
std::shared_ptr<InboundTunnel> CreateInboundTunnel (std::shared_ptr<TunnelConfig> config, std::shared_ptr<OutboundTunnel> outboundTunnel);
std::shared_ptr<OutboundTunnel> CreateOutboundTunnel (std::shared_ptr<TunnelConfig> config);
void PostTunnelData (std::shared_ptr<I2NPMessage> msg);
void PostTunnelData (const std::vector<std::shared_ptr<I2NPMessage> >& msgs);
template<class TTunnel>
std::shared_ptr<TTunnel> CreateTunnel (std::shared_ptr<TunnelConfig> config, std::shared_ptr<OutboundTunnel> outboundTunnel = nullptr);
void AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr<InboundTunnel> tunnel);
void AddPendingTunnel (uint32_t replyMsgID, std::shared_ptr<OutboundTunnel> tunnel);
std::shared_ptr<TunnelPool> CreateTunnelPool (int numInboundHops,
@ -189,6 +189,9 @@ namespace tunnel
private:
template<class TTunnel>
std::shared_ptr<TTunnel> CreateTunnel (std::shared_ptr<TunnelConfig> config, std::shared_ptr<OutboundTunnel> outboundTunnel = nullptr);
template<class TTunnel>
std::shared_ptr<TTunnel> GetPendingTunnel (uint32_t replyMsgID, const std::map<uint32_t, std::shared_ptr<TTunnel> >& pendingTunnels);
@ -204,8 +207,8 @@ namespace tunnel
void ManagePendingTunnels (PendingTunnels& pendingTunnels);
void ManageTunnelPools ();
void CreateZeroHopsInboundTunnel ();
void CreateZeroHopsOutboundTunnel ();
std::shared_ptr<ZeroHopsInboundTunnel> CreateZeroHopsInboundTunnel ();
std::shared_ptr<ZeroHopsOutboundTunnel> CreateZeroHopsOutboundTunnel ();
private:

5
TunnelConfig.h
View file

@ -159,6 +159,11 @@ namespace tunnel
return num;
}
bool IsEmpty () const
{
return !m_FirstHop;
}
virtual bool IsInbound () const { return m_FirstHop->isGateway; }
virtual uint32_t GetTunnelID () const

21
TunnelPool.cpp
View file

@ -329,8 +329,9 @@ namespace tunnel
bool TunnelPool::SelectPeers (std::vector<std::shared_ptr<const i2p::data::IdentityEx> >& peers, bool isInbound)
{
if (m_ExplicitPeers) return SelectExplicitPeers (peers, isInbound);
auto prevHop = i2p::context.GetSharedRouterInfo ();
int numHops = isInbound ? m_NumInboundHops : m_NumOutboundHops;
if (numHops <= 0) return true; // peers is empty
auto prevHop = i2p::context.GetSharedRouterInfo ();
if (i2p::transport::transports.GetNumPeers () > 25)
{
auto r = i2p::transport::transports.GetRandomPeer ();
@ -390,8 +391,10 @@ namespace tunnel
if (SelectPeers (peers, true))
{
std::reverse (peers.begin (), peers.end ());
auto tunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig> (peers), outboundTunnel);
auto tunnel = tunnels.CreateInboundTunnel (std::make_shared<TunnelConfig> (peers), outboundTunnel);
tunnel->SetTunnelPool (shared_from_this ());
if (tunnel->IsEstablished ()) // zero hops
TunnelCreated (tunnel);
}
else
LogPrint (eLogError, "Tunnels: Can't create inbound tunnel, no peers available");
@ -403,8 +406,10 @@ namespace tunnel
if (!outboundTunnel)
outboundTunnel = tunnels.GetNextOutboundTunnel ();
LogPrint (eLogDebug, "Tunnels: Re-creating destination inbound tunnel...");
auto newTunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig>(tunnel->GetPeers ()), outboundTunnel);
auto newTunnel = tunnels.CreateInboundTunnel (std::make_shared<TunnelConfig>(tunnel->GetPeers ()), outboundTunnel);
newTunnel->SetTunnelPool (shared_from_this());
if (newTunnel->IsEstablished ()) // zero hops
TunnelCreated (newTunnel);
}
void TunnelPool::CreateOutboundTunnel ()
@ -418,9 +423,11 @@ namespace tunnel
std::vector<std::shared_ptr<const i2p::data::IdentityEx> > peers;
if (SelectPeers (peers, false))
{
auto tunnel = tunnels.CreateTunnel<OutboundTunnel> (
auto tunnel = tunnels.CreateOutboundTunnel (
std::make_shared<TunnelConfig> (peers, inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()));
tunnel->SetTunnelPool (shared_from_this ());
if (tunnel->IsEstablished ()) // zero hops
TunnelCreated (tunnel);
}
else
LogPrint (eLogError, "Tunnels: Can't create outbound tunnel, no peers available");
@ -437,10 +444,12 @@ namespace tunnel
if (inboundTunnel)
{
LogPrint (eLogDebug, "Tunnels: Re-creating destination outbound tunnel...");
auto newTunnel = tunnels.CreateTunnel<OutboundTunnel> (
auto newTunnel = tunnels.CreateOutboundTunnel (
std::make_shared<TunnelConfig> (tunnel->GetPeers (),
inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()));
newTunnel->SetTunnelPool (shared_from_this ());
if (newTunnel->IsEstablished ()) // zero hops
TunnelCreated (newTunnel);
}
else
LogPrint (eLogDebug, "Tunnels: Can't re-create outbound tunnel, no inbound tunnels found");
@ -449,7 +458,7 @@ namespace tunnel
void TunnelPool::CreatePairedInboundTunnel (std::shared_ptr<OutboundTunnel> outboundTunnel)
{
LogPrint (eLogDebug, "Tunnels: Creating paired inbound tunnel...");
auto tunnel = tunnels.CreateTunnel<InboundTunnel> (std::make_shared<TunnelConfig>(outboundTunnel->GetInvertedPeers ()), outboundTunnel);
auto tunnel = tunnels.CreateInboundTunnel (std::make_shared<TunnelConfig>(outboundTunnel->GetInvertedPeers ()), outboundTunnel);
tunnel->SetTunnelPool (shared_from_this ());
}
}