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short build message for re-created tunnels and far end transports

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orignal 2021-10-05 19:38:33 -04:00
parent af133f4968
commit e6bcd04a36
6 changed files with 47 additions and 20 deletions
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7
libi2pd/RouterInfo.h
View file

@ -67,6 +67,7 @@ namespace data
eSSUV6 = 0x08,
eNTCP2V6Mesh = 0x10
};
typedef uint8_t CompatibleTransports;
enum Caps
{
@ -207,7 +208,8 @@ namespace data
void DisableMesh ();
bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };
bool IsReachableFrom (const RouterInfo& other) const { return m_ReachableTransports & other.m_SupportedTransports; };
bool IsReachableBy (uint8_t transports) const { return m_ReachableTransports & transports; };
bool IsReachableBy (CompatibleTransports transports) const { return m_ReachableTransports & transports; };
CompatibleTransports GetCompatibleTransports (bool incoming) const { return incoming ? m_ReachableTransports : m_SupportedTransports; };
bool HasValidAddresses () const { return m_SupportedTransports; };
bool IsHidden () const { return m_Caps & eHidden; };
bool IsHighBandwidth () const { return m_Caps & RouterInfo::eHighBandwidth; };
@ -273,7 +275,8 @@ namespace data
boost::shared_ptr<Addresses> m_Addresses; // TODO: use std::shared_ptr and std::atomic_store for gcc >= 4.9
std::map<std::string, std::string> m_Properties;
bool m_IsUpdated, m_IsUnreachable;
uint8_t m_SupportedTransports, m_ReachableTransports, m_Caps;
CompatibleTransports m_SupportedTransports, m_ReachableTransports;
uint8_t m_Caps;
int m_Version;
mutable std::shared_ptr<RouterProfile> m_Profile;
};

13
libi2pd/Tunnel.cpp
View file

@ -31,8 +31,9 @@ namespace tunnel
{
Tunnel::Tunnel (std::shared_ptr<const TunnelConfig> config):
TunnelBase (config->GetTunnelID (), config->GetNextTunnelID (), config->GetNextIdentHash ()),
m_Config (config), m_Pool (nullptr), m_State (eTunnelStatePending), m_IsRecreated (false),
m_Latency (0)
m_Config (config), m_IsShortBuildMessage (false), m_Pool (nullptr),
m_State (eTunnelStatePending), m_FarEndTransports (0),
m_IsRecreated (false), m_Latency (0)
{
}
@ -180,6 +181,8 @@ namespace tunnel
m_Hops.push_back (std::unique_ptr<TunnelHop>(tunnelHop));
hop = hop->prev;
}
m_IsShortBuildMessage = m_Config->IsShort ();
m_FarEndTransports = m_Config->GetFarEndTransports ();
m_Config = nullptr;
}
if (established) m_State = eTunnelStateEstablished;
@ -715,7 +718,7 @@ namespace tunnel
LogPrint (eLogDebug, "Tunnel: creating one hop outbound tunnel");
CreateTunnel<OutboundTunnel> (
std::make_shared<TunnelConfig> (std::vector<std::shared_ptr<const i2p::data::IdentityEx> > { router->GetRouterIdentity () },
inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ()), nullptr
inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash (), false), nullptr
);
}
}
@ -791,7 +794,7 @@ namespace tunnel
}
LogPrint (eLogDebug, "Tunnel: creating one hop inbound tunnel");
CreateTunnel<InboundTunnel> (
std::make_shared<TunnelConfig> (std::vector<std::shared_ptr<const i2p::data::IdentityEx> > { router->GetRouterIdentity () }), nullptr
std::make_shared<TunnelConfig> (std::vector<std::shared_ptr<const i2p::data::IdentityEx> > { router->GetRouterIdentity () }, false), nullptr
);
}
}
@ -897,7 +900,7 @@ namespace tunnel
{
// build symmetric outbound tunnel
CreateTunnel<OutboundTunnel> (std::make_shared<TunnelConfig>(newTunnel->GetInvertedPeers (),
newTunnel->GetNextTunnelID (), newTunnel->GetNextIdentHash ()), nullptr,
newTunnel->GetNextTunnelID (), newTunnel->GetNextIdentHash (), false), nullptr,
GetNextOutboundTunnel ());
}
else

3
libi2pd/Tunnel.h
View file

@ -71,6 +71,7 @@ namespace tunnel
std::shared_ptr<const TunnelConfig> GetTunnelConfig () const { return m_Config; }
std::vector<std::shared_ptr<const i2p::data::IdentityEx> > GetPeers () const;
std::vector<std::shared_ptr<const i2p::data::IdentityEx> > GetInvertedPeers () const;
bool IsShortBuildMessage () const { return m_IsShortBuildMessage; };
TunnelState GetState () const { return m_State; };
void SetState (TunnelState state);
bool IsEstablished () const { return m_State == eTunnelStateEstablished; };
@ -109,8 +110,10 @@ namespace tunnel
std::shared_ptr<const TunnelConfig> m_Config;
std::vector<std::unique_ptr<TunnelHop> > m_Hops;
bool m_IsShortBuildMessage;
std::shared_ptr<TunnelPool> m_Pool; // pool, tunnel belongs to, or null
TunnelState m_State;
i2p::data::RouterInfo::CompatibleTransports m_FarEndTransports;
bool m_IsRecreated; // if tunnel is replaced by new, or new tunnel requested to replace
uint64_t m_Latency; // in milliseconds
};

18
libi2pd/TunnelConfig.h
View file

@ -82,16 +82,17 @@ namespace tunnel
public:
TunnelConfig (const std::vector<std::shared_ptr<const i2p::data::IdentityEx> >& peers,
bool isShort = false): // inbound
m_IsShort (isShort)
bool isShort, i2p::data::RouterInfo::CompatibleTransports farEndTransports = 0): // inbound
m_IsShort (isShort), m_FarEndTransports (farEndTransports)
{
CreatePeers (peers);
m_LastHop->SetNextIdent (i2p::context.GetIdentHash ());
}
TunnelConfig (const std::vector<std::shared_ptr<const i2p::data::IdentityEx> >& peers,
uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent, bool isShort = false): // outbound
m_IsShort (isShort)
uint32_t replyTunnelID, const i2p::data::IdentHash& replyIdent, bool isShort,
i2p::data::RouterInfo::CompatibleTransports farEndTransports = 0): // outbound
m_IsShort (isShort), m_FarEndTransports (farEndTransports)
{
CreatePeers (peers);
m_FirstHop->isGateway = false;
@ -112,6 +113,11 @@ namespace tunnel
bool IsShort () const { return m_IsShort; }
i2p::data::RouterInfo::CompatibleTransports GetFarEndTransports () const
{
return m_FarEndTransports;
}
TunnelHopConfig * GetFirstHop () const
{
return m_FirstHop;
@ -178,7 +184,8 @@ namespace tunnel
protected:
// this constructor can't be called from outside
TunnelConfig (): m_FirstHop (nullptr), m_LastHop (nullptr), m_IsShort (false)
TunnelConfig (): m_FirstHop (nullptr), m_LastHop (nullptr), m_IsShort (false),
m_FarEndTransports (0)
{
}
@ -190,6 +197,7 @@ namespace tunnel
TunnelHopConfig * m_FirstHop, * m_LastHop;
bool m_IsShort;
i2p::data::RouterInfo::CompatibleTransports m_FarEndTransports;
};
class ZeroHopsTunnelConfig: public TunnelConfig

19
libi2pd/TunnelPool.cpp
View file

@ -495,6 +495,8 @@ namespace tunnel
}
prevHop = hop;
path.Add (hop);
if (i == numHops - 1)
path.farEndTransports = hop->GetCompatibleTransports (inbound);
}
return true;
}
@ -527,7 +529,11 @@ namespace tunnel
if (r)
{
if (r->IsECIES ())
{
path.Add (r);
if (i == numHops - 1)
path.farEndTransports = r->GetCompatibleTransports (isInbound);
}
else
{
LogPrint (eLogError, "Tunnels: ElGamal router ", ident.ToBase64 (), " is not supported");
@ -557,7 +563,7 @@ namespace tunnel
if (m_NumInboundHops > 0)
{
path.Reverse ();
config = std::make_shared<TunnelConfig> (path.peers, path.isShort);
config = std::make_shared<TunnelConfig> (path.peers, path.isShort, path.farEndTransports);
}
auto tunnel = tunnels.CreateInboundTunnel (config, shared_from_this (), outboundTunnel);
if (tunnel->IsEstablished ()) // zero hops
@ -581,7 +587,7 @@ namespace tunnel
std::shared_ptr<TunnelConfig> config;
if (m_NumInboundHops > 0 && tunnel->GetPeers().size())
{
config = std::make_shared<TunnelConfig>(tunnel->GetPeers ());
config = std::make_shared<TunnelConfig>(tunnel->GetPeers (), tunnel->IsShortBuildMessage ());
}
if (!m_NumInboundHops || config)
{
@ -606,7 +612,8 @@ namespace tunnel
{
std::shared_ptr<TunnelConfig> config;
if (m_NumOutboundHops > 0)
config = std::make_shared<TunnelConfig>(path.peers, inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash (), path.isShort);
config = std::make_shared<TunnelConfig>(path.peers, inboundTunnel->GetNextTunnelID (),
inboundTunnel->GetNextIdentHash (), path.isShort, path.farEndTransports);
std::shared_ptr<OutboundTunnel> tunnel;
if (path.isShort)
@ -643,7 +650,8 @@ namespace tunnel
std::shared_ptr<TunnelConfig> config;
if (m_NumOutboundHops > 0 && tunnel->GetPeers().size())
{
config = std::make_shared<TunnelConfig>(tunnel->GetPeers (), inboundTunnel->GetNextTunnelID (), inboundTunnel->GetNextIdentHash ());
config = std::make_shared<TunnelConfig>(tunnel->GetPeers (), inboundTunnel->GetNextTunnelID (),
inboundTunnel->GetNextIdentHash (), inboundTunnel->IsShortBuildMessage ());
}
if (!m_NumOutboundHops || config)
{
@ -660,7 +668,8 @@ namespace tunnel
{
LogPrint (eLogDebug, "Tunnels: Creating paired inbound tunnel...");
auto tunnel = tunnels.CreateInboundTunnel (
m_NumOutboundHops > 0 ? std::make_shared<TunnelConfig>(outboundTunnel->GetInvertedPeers ()) : nullptr,
m_NumOutboundHops > 0 ? std::make_shared<TunnelConfig>(outboundTunnel->GetInvertedPeers (),
outboundTunnel->IsShortBuildMessage ()) : nullptr,
shared_from_this (), outboundTunnel);
if (tunnel->IsEstablished ()) // zero hops
TunnelCreated (tunnel);

1
libi2pd/TunnelPool.h
View file

@ -40,6 +40,7 @@ namespace tunnel
{
std::vector<Peer> peers;
bool isShort = true;
i2p::data::RouterInfo::CompatibleTransports farEndTransports = 0;
void Add (std::shared_ptr<const i2p::data::RouterInfo> r);
void Reverse ();