src/scripts/vpn-watch

   1 #!/usr/bin/perl
   2 ##################################################
   3 #####     VPN-Watch.pl     Version 0.1       #####
   4 ##################################################
   5
   6 use strict;
   7
   8 require '/var/ipfire/general-functions.pl';
   9 my @vpnsettings;
  10 my $i = 0;
  11 my $file = "/var/run/vpn-watch.pid";
  12
  13 system("echo $$ > $file");
  14
  15 while ( $i == 0){
  16   if (open(FILE, "${General::swroot}/vpn/config")) {
  17     @vpnsettings = <FILE>;
  18     close(FILE);
  19     unless(@vpnsettings) {exit 1;}
  20   }
  21
  22 foreach (@vpnsettings){
  23  my @settings = split(/,/,$_);
  24
  25   if ($settings[27] ne 'RED'){next;}
  26   if ($settings[4] ne 'net'){next;}
  27   if ($settings[1] ne 'on'){next;}chomp($settings[29]);
  28   if ($settings[29] ne 'on'){next;}
  29
  30   my $remotehostname = $settings[11];
  31   my $remoteip = `/usr/bin/ping -c 1 $remotehostname 2>/dev/null | head -n1 | awk '{print \$3}' | tr -d '()' | tr -d ':'`;chomp($remoteip);
  32   if ($remoteip eq ""){next;}
  33   if (system("ipsec whack --status | grep $remoteip >/dev/null")){
  34     logger("Remote IP for host $remotehostname has changed or is not connected, restarting connection to $remoteip.");
  35     system("/usr/local/bin/ipsecctrl S $settings[0]");
  36     next;
  37   }
  38   my $hostip = `cat /var/ipfire/red/local-ipaddress 2>/dev/null`;
  39   chomp($hostip);
  40   if (system("ipsec whack --status | grep $hostip >/dev/null")){
  41     logger("Our own IP has changed to $hostip restarting connection.");
  42     system("/usr/local/bin/ipsecctrl S $settings[1]");
  43     next;}
  44   }
  45   logger("Nothing was done.");
  46   sleep(300);
  47 }
  48
  49 sub logger {
  50         my $log = shift;
  51         system("logger -t vpnwatch \"$log\"");
  52 }