I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef TUNNEL_POOL__
#define TUNNEL_POOL__
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#include <inttypes.h>
#include <set>
#include <vector>
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#include <utility>
#include "Identity.h"
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#include "LeaseSet.h"
#include "RouterInfo.h"
#include "I2NPProtocol.h"
#include "TunnelBase.h"
#include "RouterContext.h"
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namespace i2p
{
namespace tunnel
{
class Tunnel;
class InboundTunnel;
class OutboundTunnel;
class TunnelPool // per local destination
{
public:
TunnelPool (i2p::data::LocalDestination& localDestination, int numHops, int numTunnels = 5);
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~TunnelPool ();
const uint8_t * GetEncryptionPrivateKey () const { return m_LocalDestination.GetEncryptionPrivateKey (); };
const uint8_t * GetEncryptionPublicKey () const { return m_LocalDestination.GetEncryptionPublicKey (); };
const i2p::data::LocalDestination& GetLocalDestination () const { return m_LocalDestination; };
bool IsExploratory () const { return GetIdentHash () == i2p::context.GetRouterIdentHash (); };
void CreateTunnels ();
void TunnelCreated (InboundTunnel * createdTunnel);
void TunnelExpired (InboundTunnel * expiredTunnel);
void TunnelCreated (OutboundTunnel * createdTunnel);
void TunnelExpired (OutboundTunnel * expiredTunnel);
std::vector<InboundTunnel *> GetInboundTunnels (int num) const;
OutboundTunnel * GetNextOutboundTunnel (OutboundTunnel * suggested = nullptr);
InboundTunnel * GetNextInboundTunnel (InboundTunnel * suggested = nullptr);
const i2p::data::IdentHash& GetIdentHash () const { return m_LocalDestination.GetIdentHash (); };
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void TestTunnels ();
void ProcessDeliveryStatus (I2NPMessage * msg);
private:
void CreateInboundTunnel ();
void CreateOutboundTunnel ();
void RecreateInboundTunnel (InboundTunnel * tunnel);
void RecreateOutboundTunnel (OutboundTunnel * tunnel);
template<class TTunnels>
typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels,
typename TTunnels::value_type suggested = nullptr);
const i2p::data::RouterInfo * SelectNextHop (const i2p::data::RouterInfo * prevHop) const;
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private:
i2p::data::LocalDestination& m_LocalDestination;
int m_NumHops, m_NumTunnels;
std::set<InboundTunnel *, TunnelCreationTimeCmp> m_InboundTunnels; // recent tunnel appears first
std::set<OutboundTunnel *, TunnelCreationTimeCmp> m_OutboundTunnels;
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std::map<uint32_t, std::pair<OutboundTunnel *, InboundTunnel *> > m_Tests;
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};
}
}
#endif