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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* Anytun 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 anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TUNDEVICE_H_
#define _TUNDEVICE_H_
#include "buffer.h"
#include "deviceConfig.hpp"
#include "threadUtils.hpp"
#ifdef _MSC_VER
#include <windows.h>
#endif
class TunDevice
{
public:
TunDevice(std::string dev,std::string dev_type, std::string ifcfg_addr, u_int16_t ifcfg_prefix);
~TunDevice();
int read(u_int8_t* buf, u_int32_t len);
int write(u_int8_t* buf, u_int32_t len);
std::string getActualName() { return actual_name_; }
std::string getActualNode() { return actual_node_; }
device_type_t getType() { return conf_.type_; }
std::string getTypeString()
{
#ifndef _MSC_VER
if(fd_ < 0)
#else
if(handle_ == INVALID_HANDLE_VALUE)
#endif
return "";
switch(conf_.type_)
{
case TYPE_UNDEF: return "undef"; break;
case TYPE_TUN: return "tun"; break;
case TYPE_TAP: return "tap"; break;
}
return "";
}
private:
void operator=(const TunDevice &src);
TunDevice(const TunDevice &src);
void init_post();
void do_ifconfig();
int fix_return(int ret, size_t pi_length);
#ifndef _MSC_VER
int fd_;
#else
bool getAdapter(std::string const& dev_name);
DWORD performIoControl(DWORD controlCode, LPVOID inBuffer, DWORD inBufferSize,
LPVOID outBuffer, DWORD outBufferSize);
HANDLE handle_;
OVERLAPPED roverlapped_, woverlapped_;
#endif
DeviceConfig conf_;
bool with_pi_;
std::string actual_name_;
std::string actual_node_;
};
#endif
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