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@ -352,7 +352,7 @@ namespace transport
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}
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SSU2Server::SSU2Server ():
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RunnableServiceWithWork ("SSU2"), m_Socket (GetService ())
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RunnableServiceWithWork ("SSU2"), m_Socket (GetService ()), m_SocketV6 (GetService ())
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{
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}
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@ -367,7 +367,7 @@ namespace transport
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if (!address) continue;
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if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2)
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{
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auto port = address->port;
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auto port = address->port;
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if (!port)
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{
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uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port);
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@ -380,12 +380,13 @@ namespace transport
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}
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if (port)
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{
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OpenSocket (port);
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Receive ();
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if (address->IsV4 ())
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Receive (OpenSocket (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v4(), port)));
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if (address->IsV6 ())
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Receive (OpenSocket (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v6(), port)));
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}
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else
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LogPrint (eLogError, "SSU2: Can't start server because port not specified ");
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break;
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LogPrint (eLogError, "SSU2: Can't start server because port not specified");
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}
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}
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}
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@ -396,38 +397,43 @@ namespace transport
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StopIOService ();
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}
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void SSU2Server::OpenSocket (int port)
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boost::asio::ip::udp::socket& SSU2Server::OpenSocket (const boost::asio::ip::udp::endpoint& localEndpoint)
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{
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boost::asio::ip::udp::socket& socket = localEndpoint.address ().is_v6 () ? m_SocketV6 : m_Socket;
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try
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{
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m_Socket.open (boost::asio::ip::udp::v6());
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m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU2_SOCKET_RECEIVE_BUFFER_SIZE));
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m_Socket.set_option (boost::asio::socket_base::send_buffer_size (SSU2_SOCKET_SEND_BUFFER_SIZE));
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m_Socket.bind (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v6(), port));
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LogPrint (eLogInfo, "SSU2: Start listening port ", port);
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socket.open (localEndpoint.protocol ());
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if (localEndpoint.address ().is_v6 ())
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socket.set_option (boost::asio::ip::v6_only (true));
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socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU2_SOCKET_RECEIVE_BUFFER_SIZE));
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socket.set_option (boost::asio::socket_base::send_buffer_size (SSU2_SOCKET_SEND_BUFFER_SIZE));
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socket.bind (localEndpoint);
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LogPrint (eLogInfo, "SSU2: Start listening on ", localEndpoint);
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}
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catch (std::exception& ex )
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{
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LogPrint (eLogError, "SSU2: Failed to bind to port ", port, ": ", ex.what());
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ThrowFatal ("Unable to start SSU2 transport at port ", port, ": ", ex.what ());
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LogPrint (eLogError, "SSU2: Failed to bind to ", localEndpoint, ": ", ex.what());
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ThrowFatal ("Unable to start SSU2 transport on ", localEndpoint, ": ", ex.what ());
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}
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return socket;
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}
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void SSU2Server::Receive ()
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void SSU2Server::Receive (boost::asio::ip::udp::socket& socket)
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{
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Packet * packet = m_PacketsPool.AcquireMt ();
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m_Socket.async_receive_from (boost::asio::buffer (packet->buf, SSU2_MTU), packet->from,
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std::bind (&SSU2Server::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet));
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socket.async_receive_from (boost::asio::buffer (packet->buf, SSU2_MTU), packet->from,
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std::bind (&SSU2Server::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet, std::ref (socket)));
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}
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void SSU2Server::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred, Packet * packet)
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void SSU2Server::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred,
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Packet * packet, boost::asio::ip::udp::socket& socket)
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{
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if (!ecode)
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{
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packet->len = bytes_transferred;
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ProcessNextPacket (packet->buf, packet->len, packet->from);
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m_PacketsPool.ReleaseMt (packet);
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Receive ();
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Receive (socket);
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}
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else
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{
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@ -435,10 +441,10 @@ namespace transport
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if (ecode != boost::asio::error::operation_aborted)
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{
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LogPrint (eLogError, "SSU2: Receive error: code ", ecode.value(), ": ", ecode.message ());
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auto port = m_Socket.local_endpoint ().port ();
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m_Socket.close ();
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OpenSocket (port);
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Receive ();
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auto ep = socket.local_endpoint ();
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socket.close ();
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OpenSocket (ep);
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Receive (socket);
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}
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}
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}
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