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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 methods 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) 2007-2014 Markus Grüneis, 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 as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* 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/>.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
#ifndef ANYTUN_tunDevice_h_INCLUDED
#define ANYTUN_tunDevice_h_INCLUDED
#include "buffer.h"
#include "deviceConfig.hpp"
#include "threadUtils.hpp"
#if !defined(_MSC_VER) && !defined(MINGW)
#include "sysExec.h"
#else
#include <windows.h>
#endif
class TunDevice
{
public:
TunDevice(std::string dev,std::string dev_type, std::string ifcfg_addr, uint16_t ifcfg_prefix);
~TunDevice();
int read(uint8_t* buf, uint32_t len);
int write(uint8_t* buf, uint32_t len);
const char* getActualName() const { return actual_name_.c_str(); }
const char* getActualNode() const { return actual_node_.c_str(); }
device_type_t getType() const { return conf_.type_; }
void waitUntilReady();
const char* getTypeString() const {
#if !defined(_MSC_VER) && !defined(MINGW)
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) const;
#if !defined(_MSC_VER) && !defined(MINGW)
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_;
#if !defined(_MSC_VER) && !defined(MINGW)
SysExec* sys_exec_;
#endif
bool with_pi_;
std::string actual_name_;
std::string actual_node_;
};
#endif
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