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check_extreme_powersupply.pl
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check_extreme_powersupply.pl
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#!/usr/bin/perl -w
#
# Copyright 2009-2017 Martin Scharm
#
# This file is part of bf-monitoring.
# <https://binfalse.de/software/nagios/>
# <https://github.com/binfalse/monitoring>
#
# bf-monitoring 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 3 of the License, or (at your option) any
# later version.
#
# bf-monitoring 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
# bf-monitoring If not, see <http://www.gnu.org/licenses/>.
#
#################################################
#
# Monitor POWER SUPPLY of an extreme networks device
# written by Martin Scharm
# see http://binfalse.de
#
#################################################
use strict;
use Net::SNMP;
use Getopt::Long;
use lib "/usr/lib/nagios/plugins/";
use utils qw($TIMEOUT %ERRORS);
my $POWER_OPERATIONAL = '1.3.6.1.4.1.1916.1.1.1.10.0';
my $POWER_VOLTAGE = '1.3.6.1.4.1.1916.1.1.1.20.0';
my $POWER_STATUS = '1.3.6.1.4.1.1916.1.1.1.21.0';
my $POWER_ALARM = '1.3.6.1.4.1.1916.1.1.1.22.0';
my $POWER_REDUNDANT_STATUS = '1.3.6.1.4.1.1916.1.1.1.11.0';
my $POWER_REDUNDANT_ALARM = '1.3.6.1.4.1.1916.1.1.1.12.0';
my $returnvalue = $ERRORS{"OK"};
my $returnstring = "";
my $returnsupp = "";
my $switch = undef;
my $community = undef;
my $help = undef;
Getopt::Long::Configure ("bundling");
GetOptions(
'h' => \$help,
'help' => \$help,
's:s' => \$switch,
'switch:s' => \$switch,
'C:s' => \$community,
'community:s' => \$community,
'T:s' => \$TIMEOUT,
'timeout:s' => \$TIMEOUT
);
sub print_usage
{
print "Usage: $0 -s <SWITCH> -C <COMMUNITY-STRING> [-T <TIMEOUT>]\n\n";
print " <SWITCH> the switch's hostname or ip address\n";
print " <COMMUNITY-STRING> the community string as configured on the switch\n";
print " <TIMEOUT> max time to wait for an answer, defaults to ".$TIMEOUT."\n"
}
# CHECKS
if ( defined($help) )
{
print_usage();
exit $ERRORS{"UNKNOWN"};
}
if ( !defined($switch) )
{
print "Need Switch-Address!\n";
print_usage();
exit $ERRORS{"UNKNOWN"};
}
if ( !defined($community) )
{
print "Need Community-String!\n";
print_usage();
exit $ERRORS{"UNKNOWN"};
}
my ($session, $error) = Net::SNMP->session( -hostname => $switch, -version => 2, -community => $community, -timeout => $TIMEOUT);
if (!defined($session)) {
printf("ERROR opening session: %s.\n", $error);
exit $ERRORS{"CRITICAL"};
}
# retrieving values
my $result = $session->get_request(-varbindlist => [$POWER_OPERATIONAL, $POWER_REDUNDANT_STATUS, $POWER_REDUNDANT_ALARM, $POWER_VOLTAGE, $POWER_STATUS, $POWER_ALARM] );
if (!defined($result))
{
printf("ERROR: couldn't retrieve power supply values : %s.\n", $session->error);
$session->close;
exit $ERRORS{"CRITICAL"};
}
my $power_op = $result->{$POWER_OPERATIONAL};
my $power_redundant_state = $result->{$POWER_REDUNDANT_STATUS};
my $power_redundant_alarm = $result->{$POWER_REDUNDANT_ALARM};
my $power_voltage = $result->{$POWER_VOLTAGE};
my $power_status = $result->{$POWER_STATUS};
my $power_alarm = $result->{$POWER_ALARM};
# generating the output
$returnvalue = $ERRORS{"WARNING"} if ($power_redundant_state == 3 || $power_redundant_alarm != 2);
$returnvalue = $ERRORS{"CRITICAL"} if ($power_op != 1 || $power_alarm != 2 || $power_status != 2);
print "power supply is " . ($returnvalue == $ERRORS{"OK"} ? "ok" : "ERR");
printf "|power is%s operational%s - status: %s; voltage input is %s; redundant power supply is %s; redundant power is %s",
($power_op != 1 ? " NOT" : ""), # NOT operational
($power_alarm != 2 ? " and ALARMING!!" : ""), #power alarming
($power_status == 1 ? "NOT PRESENT" : ($power_status == 2 ? "present and ok" : "PRESENT AND NOT OK")), #primary power present?
($power_voltage == 1 ? "v110" : ($power_voltage == 2 ? "v220" : ($power_voltage == 3 ? "v48DC" : "unknown"))), # what voltage? supplemental only
($power_redundant_state != 2 ? ($power_redundant_state != 1 ? "ERR" : "not existant") : "OK"), #what about the redundant supply
($power_redundant_alarm != 2 ? "ALARMING" : "OK"); # is redundant alarming?
exit $returnvalue;