New /contrib plugin

[nagiosplug.git] / contrib / check_pfstate

diff --git a/contrib/check_pfstate b/contrib/check_pfstate
new file mode 100644 (file)
index 0000000..6fe0d9b
--- /dev/null
+++ b/contrib/check_pfstate
@@ -0,0 +1,75 @@
+#!/usr/bin/perl
+
+use strict;
+use Getopt::Long;
+use vars qw($opt_V $opt_h $opt_P $opt_H $opt_w $opt_c $PROGNAME);
+use lib "/usr/local/nagios/libexec"  ;
+use utils qw(%ERRORS &print_revision &support &usage);
+
+my $remote_user = "root";
+my $path_to_ssh = "/usr/bin/ssh";
+my $path_to_grep = "/usr/bin/grep";
+my $path_to_awk = "/usr/bin/awk";
+my $warn = 50000;
+my $crit = 60000;
+
+$PROGNAME = "check_pfstate";
+$ENV{'PATH'}='';
+$ENV{'BASH_ENV'}='';
+$ENV{'ENV'}='';
+
+Getopt::Long::Configure('bundling');
+GetOptions
+        ("V"   => \$opt_V, "version"    => \$opt_V,
+         "h"   => \$opt_h, "help"       => \$opt_h,
+         "H=s" => \$opt_H, "hostname=s" => \$opt_H,
+        "w=s" => \$opt_w, "warning=s"  => \$opt_w,
+        "c=s" => \$opt_c, "critical=s" => \$opt_c);
+
+if ($opt_V) {
+        print_revision($PROGNAME,'$Revision$');
+        exit $ERRORS{'OK'};
+}
+if ($opt_h) {
+       print_help();
+       exit $ERRORS{'OK'};
+}
+if ($opt_w) {
+       if ($opt_w =~ /(\d+)/) {
+               $warn = $1;
+       } else {
+               usage("Invalid values: $opt_w\n");
+               exit $ERRORS{'OK'};
+       }
+}
+if ($opt_c) {
+       if ($opt_c =~ /(\d+)/) {
+               $crit = $1;
+       } else {
+               usage("Invalid values: $opt_c\n");
+               exit $ERRORS{'OK'};
+       }
+}
+($opt_H) || usage("Host name/address not specified\n");
+my $host = $1 if ($opt_H =~ /([-.A-Za-z0-9]+)/);
+($host) || usage("Invalid host: $opt_H\n");
+
+my $result = `$path_to_ssh -l $remote_user $host '/sbin/pfctl -s info' | $path_to_grep entries`;
+chomp $result;
+$result =~ /(\d+)/;
+$result = $1;
+
+print "$result PF state entries\n";
+
+exit $ERRORS{'CRITICAL'} if ($result >= $crit);
+exit $ERRORS{'WARNING'} if ($result >= $warn);
+exit $ERRORS{'OK'};
+
+
+sub print_help {
+        print_revision($PROGNAME,'$Revision$');
+        print "Copyright (c) 2002 Jason Dixon\n\nThis plugin checks the number of state table entries on a PF-enabled OpenBSD system.\n\n";
+        print "Usage:\t-H, --hostname=<HOST> [-w, --warning=<WARNING>] [-c, --critical=<CRITICAL>]\n\n\tDefault warning is 50000 and critical is 60000.\n\n";
+        support();
+}
+