mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd synced 2024-11-10 00:00:29 +03:00
Code Issues Packages Projects Releases Wiki Activity

SSU payload types

Browse Source
This commit is contained in:
orignal 2014-01-24 16:30:07 -05:00
parent 3cf3e69aef
commit 9e91be671d
2 changed files with 63 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
SSU.cpp
View File

@ -7,11 +7,26 @@ namespace i2p
{
namespace ssu
{
SSUSession::SSUSession (): m_State (eSessionStateUnknown)
{
}
void SSUSession::ProcessNextMessage (uint8_t * buf, std::size_t len)
{
}
SSUServer::SSUServer (boost::asio::io_service& service, int port):
m_Socket (service, boost::asio::ip::udp::v4 (), port)
{
}
SSUServer::~SSUServer ()
{
for (auto it: m_Sessions)
delete it.second;
}
void SSUServer::Start ()
{
Receive ();
@ -33,7 +48,17 @@ namespace ssu
if (!ecode)
{
LogPrint ("SSU received ", bytes_transferred, " bytes");
// Handle
SSUSession * session = nullptr;
auto it = m_Sessions.find (m_SenderEndpoint);
if (it != m_Sessions.end ())
session = it->second;
if (session)
{
session = new SSUSession ();
m_Sessions[m_SenderEndpoint] = session;
LogPrint ("New SSU session from ", m_SenderEndpoint.address ().to_string (), ":", m_SenderEndpoint.port (), " created");
}
session->ProcessNextMessage (m_ReceiveBuffer, bytes_transferred);
Receive ();
}
else

37
SSU.h
View File

@ -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;
};
}
}