mirror of
https://github.com/norohind/hans.git
synced 2025-04-16 06:30:33 +03:00
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
/*
|
|
* Hans - IP over ICMP
|
|
* Copyright (C) 2009 Friedrich Schöller <friedrich.schoeller@gmail.com>
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef CLIENT_H
|
|
#define CLIENT_H
|
|
|
|
#include "worker.h"
|
|
#include "auth.h"
|
|
|
|
#include <vector>
|
|
|
|
class Client : public Worker
|
|
{
|
|
public:
|
|
Client(int tunnelMtu, const char *deviceName, uint32_t serverIp, int maxPolls,
|
|
const char *passphrase, uid_t uid, gid_t gid, bool changeEchoId, bool changeEchoSeq);
|
|
virtual ~Client();
|
|
|
|
virtual void run();
|
|
|
|
static const Worker::TunnelHeader::Magic magic;
|
|
protected:
|
|
enum State
|
|
{
|
|
STATE_CLOSED,
|
|
STATE_CONNECTION_REQUEST_SENT,
|
|
STATE_CHALLENGE_RESPONSE_SENT,
|
|
STATE_ESTABLISHED
|
|
};
|
|
|
|
virtual bool handleEchoData(const TunnelHeader &header, int dataLength, uint32_t realIp, bool reply, uint16_t id, uint16_t seq);
|
|
virtual void handleTunData(int dataLength, uint32_t sourceIp, uint32_t destIp);
|
|
virtual void handleTimeout();
|
|
|
|
void handleDataFromServer(int length);
|
|
|
|
void startPolling();
|
|
|
|
void sendEchoToServer(int type, int dataLength);
|
|
void sendChallengeResponse(int dataLength);
|
|
void sendConnectionRequest();
|
|
|
|
Auth auth;
|
|
|
|
uint32_t serverIp;
|
|
|
|
int maxPolls;
|
|
int pollTimeoutNr;
|
|
|
|
bool changeEchoId, changeEchoSeq;
|
|
|
|
uint16_t nextEchoId;
|
|
uint16_t nextEchoSequence;
|
|
|
|
State state;
|
|
};
|
|
|
|
#endif
|