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#!/usr/bin/perl -w
#
# check_ifoperstatus.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');
my $status;
my $TIMEOUT = 15;
my %ERRORS = ('UNKNOWN' , '-1',
'OK' , '0',
'WARNING', '1',
'CRITICAL', '2');
my %ifOperStatus = ('1','up',
'2','down',
'3','testing',
'4','unknown',
'5','dormant',
'6','notPresent');
my $state = "UNKNOWN";
my $answer = "";
my $snmpkey = 1;
my $community = "public";
my $port = 161;
my @snmpoids;
my $snmpIfOperStatus;
my $snmpLocIfDescr;
my $hostname;
my $session;
my $error;
my $response;
sub usage {
printf "\nMissing arguments!\n";
printf "\n";
printf "Perl Check IfOperStatus plugin for Nagios\n";
printf "checks operational status of specified interface\n";
printf "usage: \n";
printf "ifoperstatus.pl -k <IF_KEY> -c <READCOMMUNITY> -p <PORT> <HOSTNAME>";
printf "\nCopyright (C) 2000 Christoph Kron\n";
printf "check_ifoperstatus.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);
$status = GetOptions("key=i",\$snmpkey,
"community=s",\$community,
"port=i",\$port);
if ($status == 0)
{
&usage;
}
#shift;
$hostname = shift || &usage;
($session, $error) = Net::SNMP->session(
-hostname => $hostname,
-community => $community,
-port => $port
);
if (!defined($session)) {
$state='UNKNOWN';
$answer=$error;
print ("$state: $answer");
exit $ERRORS{$state};
}
$snmpIfOperStatus = '1.3.6.1.2.1.2.2.1.8' . "." . $snmpkey;
$snmpLocIfDescr = '1.3.6.1.4.1.9.2.2.1.1.28' . "." . $snmpkey;
push(@snmpoids,$snmpIfOperStatus);
push(@snmpoids,$snmpLocIfDescr);
if (!defined($response = $session->get_request(@snmpoids))) {
$answer=$session->error;
$session->close;
$state = 'CRITICAL';
print ("$state: $answer,$community,$snmpkey");
exit $ERRORS{$state};
}
$answer = sprintf("host '%s',%s(%s) is %s\n",
$hostname,
$response->{$snmpLocIfDescr},
$snmpkey,
$ifOperStatus{$response->{$snmpIfOperStatus}}
);
$session->close;
if ( $response->{$snmpIfOperStatus} == 1 ) {
$state = 'OK';
}
else {
$state = 'CRITICAL';
}
print ("$state: $answer");
exit $ERRORS{$state};
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