src/scripts/vpn-watch

   1 #!/usr/bin/perl
   2 ##################################################
   3 #####     VPN-Watch.pl     Version 0.3       #####
   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 my $debug = 0;
  13
  14 if ( -e $file ){logger("There my be another vpn-watch runnning $file exists, vpn-watch will not start.");exit 1;}
  15 if ($debug){logger("Call of vpn-watch pid not is not existing.");}
  16
  17 system("echo $$ > $file");
  18
  19 while ( $i == 0){
  20  sleep(300);
  21   if ($debug){logger("We will wait 300 seconds before next action.");}
  22
  23   if (open(FILE, "${General::swroot}/vpn/config")) {
  24     @vpnsettings = <FILE>;
  25     close(FILE);
  26     unless(@vpnsettings) {exit 1;}
  27   }
  28
  29 foreach (@vpnsettings){
  30  my @settings = split(/,/,$_);
  31
  32   if ($settings[27] ne 'RED'){next;}
  33   if ($settings[4] ne 'net'){next;}
  34   if ($settings[1] ne 'on'){next;}chomp($settings[29]);
  35   if ($settings[29] ne 'on'){next;}
  36
  37   my $remotehostname = $settings[11];
  38
  39   if ($debug){logger("Checking connection to $remotehostname.");}
  40
  41   my $remoteip = `/usr/bin/ping -c 1 $remotehostname 2>/dev/null | head -n1 | awk '{print \$3}' | tr -d '()' | tr -d ':'`;chomp($remoteip);
  42   if ($remoteip eq ""){next;}
  43   if (system("ipsec whack --status | grep $remoteip >/dev/null")){
  44     logger("Remote IP for host $remotehostname has changed or is not connected, restarting connection to $remoteip.");
  45     system("/usr/local/bin/ipsecctrl S $settings[0]");
  46     next;
  47   }
  48  if ($debug){logger("All connections may be fine nothing was done.");}
  49  }
  50 }
  51
  52 sub logger {
  53         my $log = shift;
  54         system("logger -t vpnwatch \"$log\"");
  55 }