I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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#ifndef I2PTUNNEL_H__
#define I2PTUNNEL_H__
#include <inttypes.h>
#include <string>
#include <set>
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#include <boost/asio.hpp>
#include "Identity.h"
#include "Streaming.h"
namespace i2p
{
namespace stream
{
const size_t I2P_TUNNEL_CONNECTION_BUFFER_SIZE = 8192;
const int I2P_TUNNEL_CONNECTION_MAX_IDLE = 3600; // in seconds
class I2PTunnel;
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class I2PTunnelConnection
{
public:
I2PTunnelConnection (I2PTunnel * owner, boost::asio::ip::tcp::socket * socket,
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const i2p::data::LeaseSet * leaseSet);
I2PTunnelConnection (I2PTunnel * owner, Stream * stream, boost::asio::ip::tcp::socket * socket,
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const boost::asio::ip::tcp::endpoint& target);
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~I2PTunnelConnection ();
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private:
void Terminate ();
void Receive ();
void HandleReceived (const boost::system::error_code& ecode, std::size_t bytes_transferred);
void HandleWrite (const boost::system::error_code& ecode);
void StreamReceive ();
void HandleStreamReceive (const boost::system::error_code& ecode, std::size_t bytes_transferred);
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void HandleConnect (const boost::system::error_code& ecode);
private:
uint8_t m_Buffer[I2P_TUNNEL_CONNECTION_BUFFER_SIZE], m_StreamBuffer[I2P_TUNNEL_CONNECTION_BUFFER_SIZE];
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boost::asio::ip::tcp::socket * m_Socket;
Stream * m_Stream;
I2PTunnel * m_Owner;
};
class I2PTunnel
{
public:
I2PTunnel (boost::asio::io_service& service): m_Service (service) {};
virtual ~I2PTunnel () { ClearConnections (); };
void AddConnection (I2PTunnelConnection * conn);
void RemoveConnection (I2PTunnelConnection * conn);
void ClearConnections ();
boost::asio::io_service& GetService () { return m_Service; };
private:
boost::asio::io_service& m_Service;
std::set<I2PTunnelConnection *> m_Connections;
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};
class I2PClientTunnel: public I2PTunnel
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{
public:
I2PClientTunnel (boost::asio::io_service& service, const std::string& destination, int port);
~I2PClientTunnel ();
void Start ();
void Stop ();
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private:
void Accept ();
void HandleAccept (const boost::system::error_code& ecode, boost::asio::ip::tcp::socket * socket);
private:
boost::asio::ip::tcp::acceptor m_Acceptor;
std::string m_Destination;
const i2p::data::IdentHash * m_DestinationIdentHash;
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const i2p::data::LeaseSet * m_RemoteLeaseSet;
};
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class I2PServerTunnel: public I2PTunnel
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{
public:
I2PServerTunnel (boost::asio::io_service& service, const std::string& address, int port,
const i2p::data::IdentHash& localDestination);
void Start ();
void Stop ();
private:
void Accept ();
void HandleAccept (Stream * stream);
private:
StreamingDestination * m_LocalDestination;
boost::asio::ip::tcp::endpoint m_Endpoint;
};
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}
}
#endif