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[people/pmueller/ipfire-2.x.git] / 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 }