server/src/main.c

   1 /*
   2  *  tunnel6
   3  *  Copyright (C) 2010  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22 #include "db.h"
  23 #include "poll.h"
  24 #include "sniff.h"
  25 #include "tunnel.h"
  26 #include "packet.h"
  27 #include "signal.h"
  28 #include "defaults.h"
  29 #include "heartbeat.h"
  30
  31 int cont;
  32
  33 int init (char *dev, unsigned short port)
  34 {
  35         if (heartbeat_init () == -1)
  36                 return -1;
  37
  38         if (db_init () == -1)
  39                 return -1;
  40
  41         if (packet_init () == -1)
  42                 return -1;
  43
  44         if (tunnel_init (port) == -1)
  45                 return -1;
  46
  47         if (sniff_init (dev) == -1)
  48                 return -1;
  49
  50         if (poll_init () == -1)
  51                 return -1;
  52
  53         if (signal_init () == -1)
  54                 return -1;
  55
  56         cont = 1;
  57
  58         return 0;
  59 }
  60
  61 int loop ()
  62 {
  63         for (; cont;) {
  64                 if (db_reload () == -1)
  65                         return -1;
  66
  67                 if (poll_loop () == -1)
  68                         return -1;
  69
  70                 if (heartbeat_loop () == -1)
  71                         return -1;
  72         }
  73
  74         return 0;
  75 }
  76
  77 int main (int argc, char **argv)
  78 {
  79         printf ("TUNNEL6 server v%s by ZeXx86\n", DEFAULT_VERSION);
  80
  81         /* ethernet device */
  82         char *dev = DEFAULT_ETHDEV;
  83         /* listen port */
  84         unsigned short port = DEFAULT_PORT;
  85
  86         if (argc > 1)
  87                 dev = argv[1];
  88         if (argc > 2)
  89                 port = (unsigned short) atoi (argv[2]);
  90
  91         printf ("Device: %s\n"
  92                 "Port: %u\n", dev, port);
  93
  94         if (init (dev, port) == -1)
  95                 return -1;
  96
  97         loop ();
  98
  99         printf ("> tunnel closed\n");
 100
 101         db_disconnect_all ();
 102
 103         return 0;
 104 }