test/forward.c

   1 /*
   2  * lxc: linux Container library
   3  *
   4  * (C) Copyright IBM Corp. 2007, 2008
   5  *
   6  * Authors:
   7  * Daniel Lezcano <dlezcano at fr.ibm.com>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22  */
  23 #include <unistd.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <errno.h>
  27 #include <sys/types.h>
  28 #include <sys/socket.h>
  29
  30 #include <network.h>
  31
  32 void usage(const char *cmd)
  33 {
  34         fprintf(stderr, "%s -i <ifname> -f <on|off>\n", cmd);
  35 }
  36
  37 int main(int argc, char *argv[])
  38 {
  39         char *ifname = NULL, *flag = NULL;
  40         int opt, ret, family = AF_INET;
  41
  42         while ((opt = getopt(argc, argv, "6i:f:")) != -1) {
  43                 switch (opt) {
  44                 case 'i':
  45                         ifname = optarg;
  46                         break;
  47                 case 'f':
  48                         flag = optarg;
  49                         break;
  50                 case '6':
  51                         family = AF_INET6;
  52                         break;
  53                 }
  54         }
  55
  56         if (!ifname || !flag) {
  57                 usage(argv[0]);
  58                 return 1;
  59         }
  60
  61         if (!strcmp(flag, "on"))
  62                 ret = ip_forward_on(ifname, family);
  63         else if (!strcmp(flag, "off"))
  64                 ret = ip_forward_off(ifname, family);
  65         else {
  66                 usage(argv[0]);
  67                 return 1;
  68         }
  69
  70         if (ret) {
  71                 fprintf(stderr, "failed for  %s: %s\n",
  72                         ifname, strerror(-ret));
  73                 return 1;
  74         }
  75
  76         return 0;
  77 }