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SSU payload types

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orignal 2014-01-24 16:30:07 -05:00
parent 3cf3e69aef
commit 9e91be671d
2 changed files with 63 additions and 1 deletions
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37
SSU.h
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@ -2,6 +2,7 @@
#define SSU_H__
#include <inttypes.h>
#include <map>
#include <boost/asio.hpp>
namespace i2p
@ -10,11 +11,46 @@ namespace ssu
{
const int SSU_MTU = 1484;
// payload types (4 bits)
const uint8_t PAYLOAD_TYPE_SESSION_REQUEST = 0;
const uint8_t PAYLOAD_TYPE_SESSION_CREATED = 1;
const uint8_t PAYLOAD_TYPE_SESSION_CONFIRMED = 2;
const uint8_t PAYLOAD_TYPE_RELAY_REQUEST = 3;
const uint8_t PAYLOAD_TYPE_RELAY_RESPONSE = 4;
const uint8_t PAYLOAD_TYPE_RELAY_INTRO = 5;
const uint8_t PAYLOAD_TYPE_DATA = 6;
const uint8_t PAYLOAD_TYPE_TEST = 7;
enum SessionState
{
eSessionStateUnknown,
eSessionStateRequestSent,
eSessionStateRequestReceived,
eSessionStateCreatedSent,
eSessionStateCreatedReceived,
eSessionStateConfirmedSent,
eSessionStateConfirmedReceived,
eSessionStateEstablised
};
class SSUSession
{
public:
SSUSession ();
void ProcessNextMessage (uint8_t * buf, std::size_t len);
private:
SessionState m_State;
};
class SSUServer
{
public:
SSUServer (boost::asio::io_service& service, int port);
~SSUServer ();
void Start ();
void Stop ();
@ -28,6 +64,7 @@ namespace ssu
boost::asio::ip::udp::socket m_Socket;
boost::asio::ip::udp::endpoint m_SenderEndpoint;
uint8_t m_ReceiveBuffer[SSU_MTU];
std::map<boost::asio::ip::udp::endpoint, SSUSession *> m_Sessions;
};
}
}