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#!/usr/bin/perl -wT
# check_ciscotemp.pl
#
# Copyright (C) 2000 Leland E. Vandervort <leland@mmania.com>
#
# 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 (or with Nagios); if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA
####################################
# Nagios pluging to check inlet and outlet temperatures on
# Cisco router platforms which support environmental monitoring
# (7200, 7500, GSR12000...)
####################################
# default temperature thresholds are 30C for inlet, 40C outlet.
# if input or output is less than thresholds, returns OK
# if equal to (the temps don't change that rapidly) returns WARNING
# if greater than threshold, returns CRITICAL
# if undetermined, or cannot access environmental, returns UNKNOWN
# (in accordance with the plugin coding guidelines)
####################################
use Net::SNMP;
use Getopt::Long;
&Getopt::Long::config('auto_abbrev');
my $status;
my $response = "";
my $timeout = 10;
my $community = "public";
my $port = 161;
my $INTAKE_TEMP = "1.3.6.1.4.1.9.9.13.1.3.1.3.1";
my $OUTLET_TEMP = "1.3.6.1.4.1.9.9.13.1.3.1.3.3";
my $in_temp;
my $out_temp;
my $inlet_thresh = 30;
my $outlet_thresh = 40;
my %STATUSCODE = ( 'UNKNOWN' => '-1',
'OK' => '0',
'WARNING' => '1',
'CRITICAL' => '2');
my $state = "UNKNOWN";
$SIG{'ALRM'} = sub {
print "ERROR: No snmp response from $hostname (sigALRM)\n";
exit($STATUSCODE{"UNKNOWN"});
};
Getopt::Long::Configure('bundling');
$status = GetOptions
("community=s", \$community,
"C=s", \$community,
"H=s", \$hostname,
"hostname=s", \$hostname,
"port=i", \$port,
"timeout=i", \$timeout,
"c=s", \$critical_vals,
"w=s", \$warning_vals,
"ithresh=i", \$inlet_thresh,
"othresh=i", \$outlet_thresh);
if($status == 0) {
&show_help;
}
unless (defined($hostname)) {
$hostname = shift || &show_help;
}
if (defined($critical_vals)) {
if ($critical_vals =~ m/^([0-9]+)[,:]([0-9]+)$/) {
($inlet_thresh,$outlet_thresh) = ($1, $2);
} else {
die "Cannot Parse Critical Thresholds\n";
}
}
if (defined($warning_vals)) {
if ($warning_vals =~ m/^([0-9]+)[:,]([0-9]+)$/) {
($inlet_warn,$outlet_warn) = ($1, $2);
} else {
die "Cannot Parse Warning Thresholds\n";
}
}else{
$inlet_warn=$inlet_thresh;
$outlet_warn=$outlet_thresh;
}
alarm($timeout);
$in_temp = &SNMPGET($INTAKE_TEMP);
$out_temp = &SNMPGET($OUTLET_TEMP);
if (($in_temp < $inlet_thresh) && ($out_temp < $outlet_thresh)) {
$state = "OK";
}
elsif (($in_temp == $inlet_thresh) || ($out_temp == $outlet_thresh)) {
if(($in_temp > $inlet_thresh) || ($out_temp > $outlet_thresh)) {
$state = "CRITICAL";
}
else {
$state = "WARNING";
}
}
elsif (($in_temp > $inlet_thresh) || ($out_temp > $outlet_thresh)) {
$state = "CRITICAL";
}
else {
$state = "WARNING";
}
print "$state Inlet Temp: $in_temp Outlet Temp: $out_temp\n";
exit($STATUSCODE{$state});
sub show_help {
printf("\nPerl envmon temperature plugin for Nagios\n");
printf("Usage:\n");
printf("
check_ciscotemp [options] <hostname>
Options:
-C snmp-community
-p snmp-port
-i input temperature threshold
-o output temperature threshold
");
printf("Copyright (C)2000 Leland E. Vandervort\n");
printf("check_ciscotemp comes with absolutely NO WARRANTY either implied or explicit\n");
printf("This program is licensed under the terms of the\n");
printf("GNU General Public License\n(check source code for details)\n\n\n");
exit($STATUSCODE{"UNKNOWN"});
}
sub SNMPGET {
$OID = shift;
($session,$error) = Net::SNMP->session(
Hostname => $hostname,
Community => $community,
Port => $port
);
if(!defined($session)) {
printf("$state %s\n", $error);
exit($STATUSCODE{$state});
}
if(!defined($response = $session->get_request($OID))) {
printf("$state %s\n", $session->error());
$session->close();
exit($STATUSCODE{$state});
}
$session->close();
return($response->{$OID});
}
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