1 files changed, 215 insertions, 0 deletions

diff --git a/contrib/check_bgpstate.pl b/contrib/check_bgpstate.pl
new file mode 100644
index 0000000..6658a0b
--- /dev/null
+++ b/contrib/check_bgpstate.pl
@@ -0,0 +1,215 @@
+#!/usr/bin/perl -w
+#
+# check_bgpstate.pl - nagios plugin 
+#
+# Copyright (C) 2000 Christoph Kron
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+#
+# Report bugs to: ck@zet.net
+#
+# 11.01.2000 Version 1.0
+
+
+
+use strict;
+
+use Net::SNMP;
+use Getopt::Long;
+&Getopt::Long::config('auto_abbrev');
+
+
+# whois programm for RIPE database queries
+my $whois = '/usr/bin/whois';
+my $status;
+my $TIMEOUT = 30;
+
+# critical bgp sessions
+my %uplinks = ( 1273, 'Uplink ECRC',
+                1755, 'Uplink EBONE',
+                3300, 'Uplink AUCS'
+              );
+
+my %ERRORS = ('UNKNOWN' , '-1',
+              'OK' , '0',
+              'WARNING', '1',
+              'CRITICAL', '2');
+
+
+my %bgpPeerState = (  
+           '1',"idle",
+           '2',"connect",
+           '3',"active",
+           '4',"opensent",
+           '5',"openconfirm",
+           '6',"established"
+        );
+my $state = "UNKNOWN";
+my $answer = "";
+my $snmpkey;
+my $snmpoid;
+my $key;
+my $community = "public";
+my $port = 161;
+my @snmpoids;
+my $snmpbgpPeerState = '1.3.6.1.2.1.15.3.1.2';
+my $snmpbgpPeerLocalAddr = '1.3.6.1.2.1.15.3.1.5';
+my $snmpbgpPeerRemoteAddr = '1.3.6.1.2.1.15.3.1.7';
+my $snmpbgpPeerRemoteAs = '1.3.6.1.2.1.15.3.1.9';
+my $hostname;
+my $session;
+my $error;
+my $response;
+my %bgpStatus;
+my $bgpestablished =0 ;
+my $bgpcritical =0;
+my $bgpdown =0;
+my $bgpidle =0;
+my $bgpmessage;
+my $asname;
+my $remoteas;
+my @output;
+
+sub usage {
+  printf "\nMissing arguments!\n";
+  printf "\n";
+  printf "Perl bgpstate plugin for Nagios\n";
+  printf "monitors all BGP sessions\n";
+  printf "usage: \n";
+  printf "check_bgpstate.pl -c <READCOMMUNITY> -p <PORT> <HOSTNAME>\n";
+  printf "Copyright (C) 2000 Christoph Kron\n";
+  printf "check_bgpstate.pl comes with ABSOLUTELY NO WARRANTY\n";
+  printf "This programm is licensed under the terms of the ";
+  printf "GNU General Public License\n(check source code for details)\n";
+  printf "\n\n";
+  exit $ERRORS{"UNKNOWN"};
+}
+
+# Just in case of problems, let's not hang Nagios
+$SIG{'ALRM'} = sub {
+     print ("ERROR: No snmp response from $hostname (alarm)\n");
+     exit $ERRORS{"UNKNOWN"};
+};
+alarm($TIMEOUT);
+
+
+$status = GetOptions("community=s",\$community,
+                     "port=i",\$port);
+if ($status == 0)
+{
+        &usage;
+}
+  
+   #shift;
+   $hostname  = shift || &usage;
+
+
+push(@snmpoids, $snmpbgpPeerState);
+push(@snmpoids, $snmpbgpPeerLocalAddr);
+push(@snmpoids, $snmpbgpPeerRemoteAddr);
+push(@snmpoids, $snmpbgpPeerRemoteAs);
+
+foreach $snmpoid (@snmpoids) {
+
+   ($session, $error) = Net::SNMP->session(
+      -hostname  => $hostname,
+      -community => $community,
+      -port      => $port
+   );
+
+   if (!defined($session)) {
+      $state='UNKNOWN';
+      $answer=$error;
+      print ("$state: $answer");
+      exit $ERRORS{$state};
+   }
+
+   if (!defined($response = $session->get_table($snmpoid))) {
+      $answer=$session->error;
+      $session->close;
+      $state = 'CRITICAL';
+      print ("$state: $answer,$community,$snmpkey");
+      exit $ERRORS{$state};
+   }
+
+   foreach $snmpkey (keys %{$response}) {
+      $snmpkey =~ m/.*\.(\d+\.\d+\.\d+\.\d+$)/;
+      $key =  $1;
+#      printf "debug: $snmpkey: $key -> $response->{$snmpkey}\n";
+      $bgpStatus{$key}{$snmpoid} = $response->{$snmpkey};
+   }
+   $session->close;
+}
+
+foreach $key (keys %bgpStatus) {
+   if ($bgpStatus{$key}{$snmpbgpPeerState} == 6 ) { 
+      $bgpestablished++;
+   }
+   elsif ($bgpStatus{$key}{$snmpbgpPeerState} == 1 ) {
+      $bgpidle++;
+   }
+   else { 
+       $bgpdown++ ;
+       if (exists($uplinks{$bgpStatus{$key}{$snmpbgpPeerRemoteAs}}) ) {
+          $bgpcritical++;
+       }
+       @output = `$whois -T aut-num AS$bgpStatus{$key}{$snmpbgpPeerRemoteAs}`;
+
+   $asname = "";
+   foreach (@output) {
+     if (m/as-name/) {
+        $asname = $_;
+        $asname =~ s/as-name://;
+        last;
+     }
+     if ( $asname =~ "" && m/descr/ ) {
+        $asname = $_;
+        $asname =~ s/descr://;
+     }
+   }
+   $asname =~ s/^\s*//;
+   $asname =~ s/\s*$//;
+       $bgpmessage .= sprintf("Peering with AS%s not established -> %s<BR>",
+                           $bgpStatus{$key}{$snmpbgpPeerRemoteAs},
+                           $asname);
+   }
+}
+   
+
+   if ($bgpdown > 0) {
+      if ($bgpcritical > 0) {
+         $state = 'CRITICAL';
+      }
+      else {
+         $state = 'WARNING';
+      }
+      $answer = sprintf("host '%s', sessions up: %d, down: %d, shutdown: %d<BR>",
+                        $hostname,
+                        $bgpestablished,
+                        $bgpdown, $bgpidle);
+      $answer = $answer . $bgpmessage . "\n";
+   }
+   else {
+      $state = 'OK';
+      $answer = sprintf("host '%s', sessions up: %d, down: %d, shutdown: %d\n",
+                        $hostname,
+                        $bgpestablished,
+                        $bgpdown,$bgpidle);
+   }
+
+print ("$state: $answer");
+exit $ERRORS{$state};
+