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 <mutex>
#include <memory>
#include "Identity.h"
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#include "LeaseSet.h"
#include "RouterInfo.h"
#include "I2NPProtocol.h"
#include "TunnelBase.h"
#include "RouterContext.h"
#include "Garlic.h"
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namespace i2p
{
namespace tunnel
{
class Tunnel;
class InboundTunnel;
class OutboundTunnel;
class TunnelPool: public std::enable_shared_from_this<TunnelPool> // per local destination
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{
public:
TunnelPool (i2p::garlic::GarlicDestination * localDestination, int numInboundHops, int numOutboundHops, int numTunnels = 5);
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~TunnelPool ();
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i2p::garlic::GarlicDestination * GetLocalDestination () const { return m_LocalDestination; };
void SetLocalDestination (i2p::garlic::GarlicDestination * destination) { m_LocalDestination = destination; };
void CreateTunnels ();
void TunnelCreated (std::shared_ptr<InboundTunnel> createdTunnel);
void TunnelExpired (std::shared_ptr<InboundTunnel> expiredTunnel);
void TunnelCreated (std::shared_ptr<OutboundTunnel> createdTunnel);
void TunnelExpired (std::shared_ptr<OutboundTunnel> expiredTunnel);
std::vector<std::shared_ptr<InboundTunnel> > GetInboundTunnels (int num) const;
std::shared_ptr<OutboundTunnel> GetNextOutboundTunnel () const;
std::shared_ptr<InboundTunnel> GetNextInboundTunnel () const;
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void TestTunnels ();
void ProcessGarlicMessage (I2NPMessage * msg);
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void ProcessDeliveryStatus (I2NPMessage * msg);
bool IsActive () const { return m_IsActive; };
void SetActive (bool isActive) { m_IsActive = isActive; };
void DetachTunnels ();
private:
void CreateInboundTunnel ();
void CreateOutboundTunnel ();
void RecreateInboundTunnel (std::shared_ptr<InboundTunnel> tunnel);
void RecreateOutboundTunnel (std::shared_ptr<OutboundTunnel> tunnel);
template<class TTunnels>
typename TTunnels::value_type GetNextTunnel (TTunnels& tunnels) const;
std::shared_ptr<const i2p::data::RouterInfo> SelectNextHop (std::shared_ptr<const i2p::data::RouterInfo> prevHop) const;
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private:
i2p::garlic::GarlicDestination * m_LocalDestination;
int m_NumInboundHops, m_NumOutboundHops, m_NumTunnels;
mutable std::mutex m_InboundTunnelsMutex;
std::set<std::shared_ptr<InboundTunnel>, TunnelCreationTimeCmp> m_InboundTunnels; // recent tunnel appears first
mutable std::mutex m_OutboundTunnelsMutex;
std::set<std::shared_ptr<OutboundTunnel>, TunnelCreationTimeCmp> m_OutboundTunnels;
std::map<uint32_t, std::pair<std::shared_ptr<OutboundTunnel>, std::shared_ptr<InboundTunnel> > > m_Tests;
bool m_IsActive;
public:
// for HTTP only
const decltype(m_OutboundTunnels)& GetOutboundTunnels () const { return m_OutboundTunnels; };
const decltype(m_InboundTunnels)& GetInboundTunnels () const { return m_InboundTunnels; };
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};
}
}
#endif