contrib/check_maxwanstate.pl

   1 #!/usr/bin/perl -w
   2 #
   3 # check_maxwanstate.pl - nagios plugin
   4 #
   5 #
   6 # Copyright (C) 2000 Christoph Kron
   7 #
   8 # This program is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU General Public License
  10 # as published by the Free Software Foundation; either version 2
  11 # of the License, or (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 #
  22 #
  23 # Report bugs to: ck@zet.net
  24 #
  25 # 11.01.2000 Version 1.0
  26
  27 use strict;
  28
  29 use Net::SNMP;
  30 use Getopt::Long;
  31 &Getopt::Long::config('auto_abbrev');
  32
  33
  34 my $status;
  35 my $TIMEOUT = 1500;
  36
  37 my %ERRORS = ('UNKNOWN' , '-1',
  38               'OK' , '0',
  39               'WARNING', '1',
  40               'CRITICAL', '2');
  41
  42 my %wanLineState = (
  43             1,'ls-unknown',
  44             2,'ls-does-not-exist',
  45             3,'ls-disabled',
  46             4,'ls-no-physical',
  47             5,'ls-no-logical',
  48             6,'ls-point-to-point',
  49             7,'ls-multipoint-1',
  50             8,'ls-multipoint-2',
  51             9,'ls-loss-of-sync',
  52             10,'ls-yellow-alarm',
  53             11,'ls-ais-receive',
  54             12,'ls-no-d-channel',
  55             13,'ls-active',
  56             14,'ls-maintenance');
  57
  58 my %wanLineType = (
  59         '1.3.6.1.4.1.529.4.1','Any',
  60         '1.3.6.1.4.1.529.4.2','T1',
  61         '1.3.6.1.4.1.529.4.3','E1',
  62         '1.3.6.1.4.1.529.4.4','Dpnss',
  63         '1.3.6.1.4.1.529.4.5','Bri',
  64         '1.3.6.1.4.1.529.4.6','S562',
  65         '1.3.6.1.4.1.529.4.7','S564',
  66         '1.3.6.1.4.1.529.4.8','Sdsl',
  67         '1.3.6.1.4.1.529.4.9','AdslCap');
  68
  69 my $state = "UNKNOWN";
  70 my $answer = "";
  71 my $snmpkey;
  72 my $snmpoid;
  73 my $key;
  74 my $community = "public";
  75 my $port = 161;
  76 my @snmpoids;
  77 my $snmpWanLineName = '1.3.6.1.4.1.529.4.21.1.2';
  78 my $snmpWanLineType = '1.3.6.1.4.1.529.4.21.1.3';
  79 my $snmpWanLineState = '1.3.6.1.4.1.529.4.21.1.5';
  80 my $snmpWanLineUsage = '1.3.6.1.4.1.529.4.21.1.8';
  81
  82 my $hostname;
  83 my $session;
  84 my $error;
  85 my $response;
  86 my %wanStatus;
  87 my $ifup =0 ;
  88 my $ifdown =0;
  89 my $ifdormant = 0;
  90 my $ifmessage;
  91
  92 sub usage {
  93   printf "\nMissing arguments!\n";
  94   printf "\n";
  95   printf "Perl Check maxwanstate plugin for Nagios\n";
  96   printf "monitors E1/T1 interface status\n";
  97   printf "usage: \n";
  98   printf "check_maxwanstate.pl -c <READCOMMUNITY> -p <PORT> <HOSTNAME>";
  99   printf "Copyright (C) 2000 Christoph Kron\n";
 100   printf "check_maxwanstate.pl comes with ABSOLUTELY NO WARRANTY\n";
 101   printf "This programm is licensed under the terms of the ";
 102   printf "GNU General Public License\n(check source code for details)\n";
 103   printf "\n\n";
 104   exit $ERRORS{"UNKNOWN"};
 105 }
 106
 107 # Just in case of problems, let's not hang Nagios
 108 $SIG{'ALRM'} = sub {
 109      print ("ERROR: No snmp response from $hostname (alarm)\n");
 110      exit $ERRORS{"UNKNOWN"};
 111 };
 112 alarm($TIMEOUT);
 113
 114
 115 $status = GetOptions("community=s",\$community,
 116                      "port=i",\$port);
 117 if ($status == 0)
 118 {
 119         &usage;
 120 }
 121
 122    #shift;
 123    $hostname  = shift || &usage;
 124
 125
 126
 127 push(@snmpoids,$snmpWanLineUsage);
 128 push(@snmpoids,$snmpWanLineState);
 129 push(@snmpoids,$snmpWanLineName);
 130 push(@snmpoids,$snmpWanLineType);
 131
 132 foreach $snmpoid (@snmpoids) {
 133
 134    ($session, $error) = Net::SNMP->session(
 135       -hostname  => $hostname,
 136       -community => $community,
 137       -port      => $port
 138    );
 139
 140    if (!defined($session)) {
 141       $state='UNKNOWN';
 142       $answer=$error;
 143       print ("$state: $answer");
 144       exit $ERRORS{$state};
 145    }
 146
 147    if (!defined($response = $session->get_table($snmpoid))) {
 148       $answer=$session->error;
 149       $session->close;
 150       $state = 'CRITICAL';
 151       print ("$state: $answer,$community,$snmpkey");
 152       exit $ERRORS{$state};
 153    }
 154
 155    foreach $snmpkey (keys %{$response}) {
 156       $snmpkey =~ /.*\.(\d+)$/;
 157       $key = $1;
 158       $wanStatus{$key}{$snmpoid} = $response->{$snmpkey};
 159    }
 160    $session->close;
 161 }
 162
 163    foreach $key (keys %wanStatus) {
 164       # look only at active Interfaces lu-trunk(5)
 165       if ($wanStatus{$key}{$snmpWanLineUsage} == 5 ) {
 166
 167          # 13 -> active
 168          if ($wanStatus{$key}{$snmpWanLineState} == 13 ) {
 169              $ifup++;
 170          }
 171          else {
 172              $ifdown++ ;
 173              $ifmessage .= sprintf("%s interface status : %s (%s)<BR>",
 174                          $wanLineType{$wanStatus{$key}{$snmpWanLineType}},
 175                          $wanLineState{$wanStatus{$key}{$snmpWanLineState}},
 176                          $wanStatus{$key}{$snmpWanLineName});
 177
 178          }
 179       }
 180    }
 181
 182
 183    if ($ifdown > 0) {
 184       $state = 'CRITICAL';
 185       $answer = sprintf("host '%s', interfaces up: %d, down: %d<BR>",
 186                         $hostname,
 187                         $ifup,
 188                         $ifdown);
 189       $answer = $answer . $ifmessage . "\n";
 190    }
 191    else {
 192       $state = 'OK';
 193       $answer = sprintf("host '%s', interfaces up: %d, down: %d\n",
 194                         $hostname,
 195                         $ifup,
 196                         $ifdown);
 197    }
 198
 199 print ("$state: $answer");
 200 exit $ERRORS{$state};
 201