anymux.cpp

   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 #include <iostream>
  32 #include <fstream>
  33 #include <poll.h>
  34
  35 #include "datatypes.h"
  36
  37 #include "log.h"
  38 #include "signalController.h"
  39 #include "anymuxOptions.h"
  40
  41 #include "muxSocket.h"
  42 #include "Sockets/ListenSocket.h"
  43 #include "Sockets/SocketHandler.h"
  44
  45
  46 class ThreadParam
  47 {
  48 public:
  49   ThreadParam() : port(0) {};
  50   u_int16_t port;
  51 };
  52
  53
  54 void* syncListener(void* p )
  55 {
  56   ThreadParam* param = reinterpret_cast<ThreadParam*>(p);
  57         SOCKETS_NAMESPACE::SocketHandler h;
  58         SOCKETS_NAMESPACE::ListenSocket<MuxSocket> l(h,true);
  59
  60         if( l.Bind(param->port) )
  61                 pthread_exit(NULL);
  62
  63         Utility::ResolveLocal(); // resolve local hostname
  64         h.Add(&l);
  65         h.Select(1,0);
  66         while (1) {
  67                 h.Select(1,0);
  68         }
  69 }
  70 int main(int argc, char* argv[])
  71 {
  72   if(!gOpt.parse(argc, argv))
  73   {
  74     gOpt.printUsage();
  75     exit(-1);
  76   }
  77
  78   std::ifstream file( gOpt.getFileName().c_str() );
  79   if( file.is_open() )
  80     file.close();
  81   else
  82   {
  83     std::cout << "ERROR: unable to open file!" << std::endl;
  84     exit(-1);
  85   }
  86
  87   SignalController sig;
  88   sig.init();
  89
  90   ThreadParam p;
  91   p.port = gOpt.getLocalPort();
  92         pthread_t syncListenerThread;
  93         pthread_create(&syncListenerThread, NULL, syncListener, &p);
  94
  95         int ret = sig.run();
  96
  97         pthread_cancel(syncListenerThread);
  98
  99         pthread_join(syncListenerThread, NULL);
 100
 101   return ret;
 102 }
 103