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 ){
  15   logger("There my be another vpn-watch runnning because $file exists, vpn-watch will try kill the process.");
  16   open(FILE, "<$file");
  17     my $PID = <FILE>;
  18     close(FILE);
  19     system("kill -9 $PID");
  20   }
  21 if ($debug){logger("Call of vpn-watch pid not is not existing.");}
  22
  23 system("echo $$ > $file");
  24
  25 while ( $i == 0){
  26  sleep(300);
  27   if ($debug){logger("We will wait 300 seconds before next action.");}
  28
  29   if (open(FILE, "<${General::swroot}/vpn/config")) {
  30     @vpnsettings = <FILE>;
  31     close(FILE);
  32     unless(@vpnsettings) {exit 1;}
  33   }
  34
  35 foreach (@vpnsettings){
  36  my @settings = split(/,/,$_);
  37
  38   if ($settings[27] ne 'RED'){next;}
  39   if ($settings[4] ne 'net'){next;}
  40   if ($settings[1] ne 'on'){next;}chomp($settings[29]);
  41   if ($settings[29] ne 'on'){next;}
  42
  43   my $remotehostname = $settings[11];
  44
  45   if ($debug){logger("Checking connection to $remotehostname.");}
  46
  47   my $remoteip = `/usr/bin/ping -c 1 $remotehostname 2>/dev/null | head -n1 | awk '{print \$3}' | tr -d '()' | tr -d ':'`;chomp($remoteip);
  48   if ($remoteip eq ""){next;}
  49   if (system("ipsec whack --status | grep $remoteip >/dev/null")){
  50     logger("Remote IP for host $remotehostname has changed or is not connected, restarting connection to $remoteip.");
  51     system("/usr/local/bin/ipsecctrl S $settings[0]");
  52     next;
  53   }
  54  if ($debug){logger("All connections may be fine nothing was done.");}
  55  }
  56 }
  57
  58 sub logger {
  59         my $log = shift;
  60         system("logger -t vpnwatch \"$log\"");
  61 }