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106 lines
3.0 KiB
106 lines
3.0 KiB
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11 years ago
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#ifndef TRANSIT_TUNNEL_H__
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#define TRANSIT_TUNNEL_H__
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#include <inttypes.h>
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#include <vector>
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#include <mutex>
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#include <memory>
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#include "Crypto.h"
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#include "I2NPProtocol.h"
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#include "TunnelEndpoint.h"
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#include "TunnelGateway.h"
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#include "TunnelBase.h"
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namespace i2p
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{
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namespace tunnel
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{
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class TransitTunnel: public TunnelBase
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{
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public:
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TransitTunnel (uint32_t receiveTunnelID,
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const uint8_t * nextIdent, uint32_t nextTunnelID,
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const uint8_t * layerKey,const uint8_t * ivKey);
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virtual size_t GetNumTransmittedBytes () const { return 0; };
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// implements TunnelBase
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void SendTunnelDataMsg (std::shared_ptr<i2p::I2NPMessage> msg);
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void HandleTunnelDataMsg (std::shared_ptr<const i2p::I2NPMessage> tunnelMsg);
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void EncryptTunnelMsg (std::shared_ptr<const I2NPMessage> in, std::shared_ptr<I2NPMessage> out);
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private:
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i2p::crypto::TunnelEncryption m_Encryption;
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};
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class TransitTunnelParticipant: public TransitTunnel
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{
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public:
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TransitTunnelParticipant (uint32_t receiveTunnelID,
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const uint8_t * nextIdent, uint32_t nextTunnelID,
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const uint8_t * layerKey,const uint8_t * ivKey):
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TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID,
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layerKey, ivKey), m_NumTransmittedBytes (0) {};
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~TransitTunnelParticipant ();
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size_t GetNumTransmittedBytes () const { return m_NumTransmittedBytes; };
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void HandleTunnelDataMsg (std::shared_ptr<const i2p::I2NPMessage> tunnelMsg);
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void FlushTunnelDataMsgs ();
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private:
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size_t m_NumTransmittedBytes;
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std::vector<std::shared_ptr<i2p::I2NPMessage> > m_TunnelDataMsgs;
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};
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class TransitTunnelGateway: public TransitTunnel
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{
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public:
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TransitTunnelGateway (uint32_t receiveTunnelID,
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const uint8_t * nextIdent, uint32_t nextTunnelID,
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const uint8_t * layerKey,const uint8_t * ivKey):
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TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID,
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layerKey, ivKey), m_Gateway(this) {};
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void SendTunnelDataMsg (std::shared_ptr<i2p::I2NPMessage> msg);
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void FlushTunnelDataMsgs ();
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size_t GetNumTransmittedBytes () const { return m_Gateway.GetNumSentBytes (); };
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private:
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std::mutex m_SendMutex;
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TunnelGateway m_Gateway;
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};
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class TransitTunnelEndpoint: public TransitTunnel
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{
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public:
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TransitTunnelEndpoint (uint32_t receiveTunnelID,
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const uint8_t * nextIdent, uint32_t nextTunnelID,
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const uint8_t * layerKey,const uint8_t * ivKey):
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TransitTunnel (receiveTunnelID, nextIdent, nextTunnelID, layerKey, ivKey),
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m_Endpoint (false) {}; // transit endpoint is always outbound
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void Cleanup () { m_Endpoint.Cleanup (); }
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void HandleTunnelDataMsg (std::shared_ptr<const i2p::I2NPMessage> tunnelMsg);
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size_t GetNumTransmittedBytes () const { return m_Endpoint.GetNumReceivedBytes (); }
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private:
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TunnelEndpoint m_Endpoint;
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};
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std::shared_ptr<TransitTunnel> CreateTransitTunnel (uint32_t receiveTunnelID,
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const uint8_t * nextIdent, uint32_t nextTunnelID,
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const uint8_t * layerKey,const uint8_t * ivKey,
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bool isGateway, bool isEndpoint);
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}
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}
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#endif
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