src/bsd/tunDevice.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
  15  *                          Christian Pointner <satp@wirdorange.org>
  16  *
  17  *  This file is part of Anytun.
  18  *
  19  *  Anytun is free software: you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License version 3 as
  21  *  published by the Free Software Foundation.
  22  *
  23  *  Anytun is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 #ifndef _TUNDEVICE_H_
  33 #define _TUNDEVICE_H_
  34
  35 #include "buffer.h"
  36 #include "deviceConfig.hpp"
  37 #include "threadUtils.hpp"
  38
  39 class TunDevice
  40 {
  41 public:
  42   TunDevice(const char* dev,const char* dev_type, const char* ifcfg_lp, const char* ifcfg_rnmp);
  43   ~TunDevice();
  44
  45   short read(u_int8_t* buf, u_int32_t len);
  46   int write(u_int8_t* buf, u_int32_t len);
  47
  48   const char* getActualName();
  49   device_type_t getType();
  50   const char* getTypeString();
  51
  52 private:
  53   void operator=(const TunDevice &src);
  54   TunDevice(const TunDevice &src);
  55
  56   void init_post();
  57   void do_ifconfig();
  58   int fix_return(int ret, size_t type_length);
  59
  60   int fd_;
  61   DeviceConfig conf_;
  62   bool with_type_;
  63   std::string actual_name_;
  64 };
  65
  66 #endif