/*
 *  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 TUN_H
#define TUN_H

#include "tun_dev.h"

#include <string>
#include <stdint.h>

class Tun
{
public:
	Tun(const char *device, int mtu);
	~Tun();

	int getFd() { return fd; }

	int read(char *buffer);
	int read(char *buffer, uint32_t &sourceIp, uint32_t &destIp);

	void write(const char *buffer, int length);

	void setIp(uint32_t ip, uint32_t destIp, bool includeSubnet);
protected:
	char device[VTUN_DEV_LEN];

	int mtu;
	int fd;
};

#endif