SSU added

SSU.cpp

@@ -0,0 +1,44 @@
+#include <boost/bind.hpp>
+#include "Log.h"
+#include "hmac.h"
+#include "SSU.h"
+
+namespace i2p
+{
+namespace ssu
+{
+	SSUServer::SSUServer (boost::asio::io_service& service, int port):
+		m_Socket (service, boost::asio::ip::udp::v4 (), port)
+	{
+	}
+	
+	void SSUServer::Start ()
+	{
+		Receive ();
+	}
+
+	void SSUServer::Stop ()
+	{
+		m_Socket.close ();
+	}
+
+	void SSUServer::Receive ()
+	{
+		m_Socket.async_receive_from (boost::asio::buffer (m_ReceiveBuffer, SSU_MTU), m_SenderEndpoint,
+			boost::bind (&SSUServer::HandleReceivedFrom, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); 
+	}
+
+	void SSUServer::HandleReceivedFrom (const boost::system::error_code& ecode, std::size_t bytes_transferred)
+	{
+		if (!ecode)
+		{
+			LogPrint ("SSU received ", bytes_transferred, " bytes");
+			// Handle
+			Receive ();
+		}
+		else
+			LogPrint ("SSU receive error: ", ecode.message ());
+	}
+}
+}
+