contrib/checkciscotemp.pl

   1 #!/usr/bin/perl -wT
   2 # check_ciscotemp.pl
   3 #
   4 # Copyright (C) 2000  Leland E. Vandervort <leland@mmania.com>
   5 #
   6 # This program is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU General Public License
   8 # as published by the Free Software Foundation; either version 2
   9 # of the License, or (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty
  13 # of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # you should have received a copy of the GNU General Public License
  17 # along with this program (or with Nagios);  if not, write to the
  18 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 # Boston, MA 02111-1307, USA
  20 ####################################
  21 # Nagios pluging to check inlet and outlet temperatures on
  22 # Cisco router platforms which support environmental monitoring
  23 # (7200, 7500, GSR12000...)
  24 ####################################
  25 # default temperature thresholds are 30C for inlet, 40C outlet.
  26 # if input or output is less than thresholds, returns OK
  27 # if equal to (the temps don't change that rapidly) returns WARNING
  28 # if greater than threshold, returns CRITICAL
  29 # if undetermined, or cannot access environmental, returns UNKNOWN
  30 # (in accordance with the plugin coding guidelines)
  31 ####################################
  32
  33 use Net::SNMP;
  34 use Getopt::Long;
  35 &Getopt::Long::config('auto_abbrev');
  36
  37 my $status;
  38 my $response = "";
  39 my $timeout = 10;
  40 my $community = "public";
  41 my $port = 161;
  42 my $INTAKE_TEMP = "1.3.6.1.4.1.9.9.13.1.3.1.3.1";
  43 my $OUTLET_TEMP = "1.3.6.1.4.1.9.9.13.1.3.1.3.3";
  44 my $in_temp;
  45 my $out_temp;
  46 my $inlet_thresh = 30;
  47 my $outlet_thresh = 40;
  48
  49 my %STATUSCODE = (  'UNKNOWN' => '-1',
  50                     'OK' => '0',
  51                     'WARNING' => '1',
  52                     'CRITICAL' => '2');
  53
  54 my $state = "UNKNOWN";
  55
  56
  57 $SIG{'ALRM'} = sub {
  58     print "ERROR: No snmp response from $hostname (sigALRM)\n";
  59     exit($STATUSCODE{"UNKNOWN"});
  60 };
  61
  62 Getopt::Long::Configure('bundling');
  63 $status = GetOptions
  64         ("community=s", \$community,
  65          "C=s",         \$community,
  66          "H=s",         \$hostname,
  67          "hostname=s",  \$hostname,
  68          "port=i",      \$port,
  69          "timeout=i",   \$timeout,
  70          "c=s",         \$critical_vals,
  71          "w=s",         \$warning_vals,
  72          "ithresh=i",   \$inlet_thresh,
  73          "othresh=i",   \$outlet_thresh);
  74
  75 if($status == 0) {
  76     &show_help;
  77 }
  78
  79 unless (defined($hostname)) {
  80     $hostname = shift || &show_help;
  81 }
  82
  83 if (defined($critical_vals)) {
  84     if ($critical_vals =~ m/^([0-9]+)[,:]([0-9]+)$/) {
  85         ($inlet_thresh,$outlet_thresh) = ($1, $2);
  86     } else {
  87         die "Cannot Parse Critical Thresholds\n";
  88     }
  89 }
  90
  91 if (defined($warning_vals)) {
  92     if ($warning_vals =~ m/^([0-9]+)[:,]([0-9]+)$/) {
  93         ($inlet_warn,$outlet_warn) = ($1, $2);
  94     } else {
  95         die "Cannot Parse Warning Thresholds\n";
  96     }
  97 }else{
  98     $inlet_warn=$inlet_thresh;
  99     $outlet_warn=$outlet_thresh;
 100 }
 101
 102 alarm($timeout);
 103
 104 $in_temp = &SNMPGET($INTAKE_TEMP);
 105 $out_temp = &SNMPGET($OUTLET_TEMP);
 106
 107 if (($in_temp < $inlet_thresh) && ($out_temp < $outlet_thresh)) {
 108     $state = "OK";
 109 }
 110 elsif (($in_temp == $inlet_thresh) || ($out_temp == $outlet_thresh)) {
 111     if(($in_temp > $inlet_thresh) || ($out_temp > $outlet_thresh)) {
 112         $state = "CRITICAL";
 113     }
 114     else {
 115         $state = "WARNING";
 116     }
 117 }
 118 elsif (($in_temp > $inlet_thresh) || ($out_temp > $outlet_thresh)) {
 119     $state = "CRITICAL";
 120 }
 121 else {
 122     $state = "WARNING";
 123 }
 124
 125 print "$state Inlet Temp: $in_temp Outlet Temp: $out_temp\n";
 126 exit($STATUSCODE{$state});
 127
 128 sub show_help {
 129     printf("\nPerl envmon temperature plugin for Nagios\n");
 130     printf("Usage:\n");
 131     printf("
 132   check_ciscotemp [options] <hostname>
 133   Options:
 134     -C snmp-community
 135     -p snmp-port
 136     -i input temperature threshold
 137     -o output temperature threshold
 138
 139 ");
 140     printf("Copyright (C)2000 Leland E. Vandervort\n");
 141     printf("check_ciscotemp comes with absolutely NO WARRANTY either implied or explicit\n");
 142     printf("This program is licensed under the terms of the\n");
 143     printf("GNU General Public License\n(check source code for details)\n\n\n");
 144     exit($STATUSCODE{"UNKNOWN"});
 145 }
 146
 147 sub SNMPGET {
 148     $OID = shift;
 149     ($session,$error) = Net::SNMP->session(
 150         Hostname        =>      $hostname,
 151         Community       =>      $community,
 152         Port            =>      $port
 153         );
 154     if(!defined($session)) {
 155         printf("$state %s\n", $error);
 156         exit($STATUSCODE{$state});
 157     }
 158     if(!defined($response = $session->get_request($OID))) {
 159         printf("$state %s\n", $session->error());
 160         $session->close();
 161         exit($STATUSCODE{$state});
 162     }
 163     $session->close();
 164     return($response->{$OID});
 165 }
 166