tunDevice.h

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00001 /*
00002  *  anytun
00003  *
00004  *  The secure anycast tunneling protocol (satp) defines a protocol used
00005  *  for communication between any combination of unicast and anycast
00006  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
00007  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
00008  *  ethernet, ip, arp ...). satp directly includes cryptography and
00009  *  message authentication based on the methodes used by SRTP.  It is
00010  *  intended to deliver a generic, scaleable and secure solution for
00011  *  tunneling and relaying of packets of any protocol.
00012  *
00013  *
00014  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
00015  *
00016  *  This program is free software; you can redistribute it and/or modify
00017  *  it under the terms of the GNU General Public License version 2
00018  *  as published by the Free Software Foundation.
00019  *
00020  *  This program is distributed in the hope that it will be useful,
00021  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00022  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00023  *  GNU General Public License for more details.
00024  *
00025  *  You should have received a copy of the GNU General Public License
00026  *  along with this program (see the file COPYING included with this
00027  *  distribution); if not, write to the Free Software Foundation, Inc.,
00028  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00029  */
00030 
00031 #ifndef _TUNDEVICE_H_
00032 #define _TUNDEVICE_H_
00033 
00034 #include "buffer.h"
00035 #include "threadUtils.hpp"
00036 
00037 class TunDevice
00038 {
00039 public:
00040   static const u_int32_t TYPE_UNDEF = 0;
00041   static const u_int32_t TYPE_TUN = 1;
00042   static const u_int32_t TYPE_TAP = 2;
00043 
00044   TunDevice(const char* dev,const char* dev_type, const char* ifcfg_lp, const char* ifcfg_rnmp);
00045   ~TunDevice();
00046   
00047   void open();
00048   void close();
00049   bool isOpen();
00050 
00051   short read(Buffer& buf);
00052   int write(Buffer& buf);
00053 
00054   char* getActualName();
00055   u_int32_t getType();
00056   char* getTypeString();
00057 
00058 private:
00059   void operator=(const TunDevice &src);
00060   TunDevice(const TunDevice &src);
00061 
00062   Mutex io_mutex_;
00063   struct tuntap *dev_;
00064 };
00065 
00066 #endif

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