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 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #ifndef _TUNDEVICE_H_
  32 #define _TUNDEVICE_H_
  33
  34 #include "buffer.h"
  35 #include "deviceConfig.hpp"
  36 #include "threadUtils.hpp"
  37
  38 class TunDevice
  39 {
  40 public:
  41   TunDevice(const char* dev,const char* dev_type, const char* ifcfg_lp, const char* ifcfg_rnmp);
  42   ~TunDevice();
  43
  44   short read(u_int8_t* buf, u_int32_t len);
  45   int write(u_int8_t* buf, u_int32_t len);
  46
  47   const char* getActualName();
  48   device_type_t getType();
  49   const char* getTypeString();
  50
  51 private:
  52   void operator=(const TunDevice &src);
  53   TunDevice(const TunDevice &src);
  54
  55   void init_post();
  56   void do_ifconfig();
  57   int fix_return(int ret, size_t type_length);
  58
  59   int fd_;
  60   DeviceConfig conf_;
  61   bool with_type_;
  62   std::string actual_name_;
  63 };
  64
  65 #endif