mirror of
https://github.com/vincentmli/bpfire.git
synced 2026-04-15 05:22:59 +02:00
87 lines
2.7 KiB
Perl
Executable File
87 lines
2.7 KiB
Perl
Executable File
#!/usr/bin/perl
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##################################################
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##### VPN-Watch.pl Version 0.6a #####
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##################################################
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# #
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# VPN-Watch is part of the IPFire Firewall #
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# #
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##################################################
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use strict;
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require '/var/ipfire/general-functions.pl';
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my @vpnsettings;
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my $i = 0;
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my $file = "/var/run/vpn-watch.pid";
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my $debug = 0;
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if ( -e $file ){
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logger("There my be another vpn-watch runnning because $file exists, vpn-watch will try kill the process.");
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open(FILE, "<$file");
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my $PID = <FILE>;
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close(FILE);
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system("kill -9 $PID");
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}
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system("echo $$ > $file");
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my $round=0;
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while ( $i == 0){
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if ($debug){logger("We will wait 60 seconds before next action.");}
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sleep(60);
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$round++;
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# Reset roundcounter after 60 min. To do established check.
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if ($round > 59) { $round=0; }
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if (open(FILE, "<${General::swroot}/vpn/config")) { @vpnsettings = <FILE>;
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close(FILE);
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unless(@vpnsettings) {exit 1;}
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}
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my $status = `ipsec whack --status`;
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foreach (@vpnsettings){
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my @settings = split(/,/,$_);
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if ($settings[27] ne 'RED'){next;}
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if ($settings[4] ne 'net'){next;}
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if ($settings[1] ne 'on'){next;}chomp($settings[29]);
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if ($settings[29] ne 'on'){next;}
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my $remotehostname = $settings[11];
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if ($debug){logger("Checking connection to $remotehostname.");}
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my $remoteip = `/usr/bin/ping -c 1 $remotehostname 2>/dev/null | head -n1 | awk '{print \$3}' | tr -d '()' | tr -d ':'`;chomp($remoteip);
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if ($remoteip eq ""){next;if ($debug){logger("Unable to resolve $remotehostname.");}}
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my $ipmatch= `echo "$status" | grep '$remoteip' | grep '$settings[2]'`;
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my $established= `echo "$status" | grep '$settings[2]' | grep 'erouted;'`;
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my $known= `echo "$status" | grep '$settings[2]'`;
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if ( $ipmatch eq '' && $known ne '' ){
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logger("Remote IP for host $remotehostname($remoteip) has changed, restarting ipsec.");
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system("/usr/local/bin/ipsecctrl S $settings[0]");
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$round=0;
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last; #all connections will reloaded
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#remove this if ipsecctrl can restart single con again
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}
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if ($debug){logger("Round=".$round." and established=".$established);}
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if ( ($round == 0) && ($established eq '')) {
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logger("Connection to $remotehostname($remoteip) not erouted, restarting ipsec.");
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system("/usr/local/bin/ipsecctrl S $settings[0]");
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$round=0;
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last; #all connections will reloaded
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#remove this if ipsecctrl can restart single con again
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}
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}
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if ($debug){logger("All connections may be fine nothing was done.");}
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}
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sub logger {
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my $log = shift;
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system("logger -t vpnwatch \"$log\"");
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}
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