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Code Issues Releases Activity

manage transit tunnels

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This commit is contained in:
orignal 2014-01-03 22:56:28 -05:00
parent 5997cb80bd
commit e1716bc05e
3 changed files with 37 additions and 11 deletions
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24
Tunnel.cpp
View File

@ -13,8 +13,7 @@ namespace i2p
namespace tunnel
{
Tunnel::Tunnel (TunnelConfig * config): m_Config (config),
m_CreationTime (i2p::util::GetSecondsSinceEpoch ()), m_IsEstablished (false)
Tunnel::Tunnel (TunnelConfig * config): m_Config (config), m_IsEstablished (false)
{
}
@ -320,6 +319,7 @@ namespace tunnel
ManageInboundTunnels ();
ManageOutboundTunnels ();
ManageTransitTunnels ();
/* if (!m_IsTunnelCreated)
{
@ -407,13 +407,29 @@ namespace tunnel
{
OutboundTunnel * outboundTunnel = GetNextOutboundTunnel ();
LogPrint ("Creating two hops inbound tunnel...");
auto router = outboundTunnel->GetTunnelConfig ()->GetFirstHop ()->router;
CreateTunnel<InboundTunnel> (
new TunnelConfig (i2p::data::netdb.GetRandomNTCPRouter (),
outboundTunnel->GetTunnelConfig ()->GetFirstHop ()->router),
new TunnelConfig (i2p::data::netdb.GetRandomNTCPRouter (),
router != &i2p::context.GetRouterInfo () ? router : i2p::data::netdb.GetRandomNTCPRouter ()),
outboundTunnel);
}
}
}
void Tunnels::ManageTransitTunnels ()
{
uint32_t ts = i2p::util::GetSecondsSinceEpoch ();
for (auto it = m_TransitTunnels.begin (); it != m_TransitTunnels.end ();)
{
if (ts > it->second->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT)
{
LogPrint ("Transit tunnel ", it->second->GetTunnelID (), " expired");
it = m_TransitTunnels.erase (it);
}
else
it++;
}
}
void Tunnels::PostTunnelData (I2NPMessage * msg)
{

14
Tunnel.h
View File

@ -33,9 +33,7 @@ namespace tunnel
void Build (uint32_t replyMsgID, OutboundTunnel * outboundTunnel = 0);
virtual uint32_t GetTunnelID () const = 0; // as known at our side
TunnelConfig * GetTunnelConfig () const { return m_Config; }
uint32_t GetCreationTime () const { return m_CreationTime; };
bool IsEstablished () const { return m_IsEstablished; };
bool HandleTunnelBuildResponse (uint8_t * msg, size_t len);
@ -54,7 +52,6 @@ namespace tunnel
private:
TunnelConfig * m_Config;
uint32_t m_CreationTime; // seconds since epoch
bool m_IsEstablished;
CryptoPP::ECB_Mode<CryptoPP::AES>::Decryption m_ECBDecryption;
@ -70,9 +67,11 @@ namespace tunnel
void SendTunnelDataMsg (i2p::I2NPMessage * msg); //local
void SendTunnelDataMsg (const uint8_t * gwHash, uint32_t gwTunnel, i2p::I2NPMessage * msg);
uint32_t GetTunnelID () const { return GetNextTunnelID (); };
TunnelGateway& GetTunnelGateway () { return m_Gateway; };
size_t GetNumSentBytes () const { return m_Gateway.GetNumSentBytes (); };
// implements TunnelBase
uint32_t GetTunnelID () const { return GetNextTunnelID (); };
private:
@ -85,10 +84,10 @@ namespace tunnel
InboundTunnel (TunnelConfig * config): Tunnel (config) {};
void HandleTunnelDataMsg (I2NPMessage * msg);
uint32_t GetTunnelID () const { return GetTunnelConfig ()->GetLastHop ()->nextTunnelID; };
size_t GetNumReceivedBytes () const { return m_Endpoint.GetNumReceivedBytes (); };
// implements TunnelBase
uint32_t GetTunnelID () const { return GetTunnelConfig ()->GetLastHop ()->nextTunnelID; };
private:
TunnelEndpoint m_Endpoint;
@ -128,6 +127,7 @@ namespace tunnel
void ManageTunnels ();
void ManageOutboundTunnels ();
void ManageInboundTunnels ();
void ManageTransitTunnels ();
void CreateZeroHopsInboundTunnel ();

10
TunnelBase.h
View File

@ -2,6 +2,7 @@
#define TUNNEL_BASE_H__
#include <inttypes.h>
#include "Timestamp.h"
#include "I2NPProtocol.h"
namespace i2p
@ -30,11 +31,20 @@ namespace tunnel
{
public:
TunnelBase (): m_CreationTime (i2p::util::GetSecondsSinceEpoch ()) {};
virtual ~TunnelBase () {};
virtual void EncryptTunnelMsg (I2NPMessage * tunnelMsg) = 0;
virtual uint32_t GetNextTunnelID () const = 0;
virtual const i2p::data::IdentHash& GetNextIdentHash () const = 0;
virtual uint32_t GetTunnelID () const = 0; // as known at our side
uint32_t GetCreationTime () const { return m_CreationTime; };
void SetCreationTime (uint32_t t) { m_CreationTime = t; };
private:
uint32_t m_CreationTime; // seconds since epoch
};
}
}