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#!/usr/bin/perl -w
#
# check_dlswcircuit.pl - nagios plugin
#
# Checks if a Cisco Dlsw circuit is connected.
#
#
# Copyright (C) 2000 Carsten Foss & Christoph Kron
#
# Basically this is an adapted version of Christoph Kron's (ck@zet.net) check_ifoperstatus.pl plugin.
# most of the thanks should go to him.
#
# 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.
#
# Arguments : -s <SourceMac> -d <DestMac> -c <READCOMMUNITY> -p <PORT> <HOSTNAME or IP-Addr>
# -
# Source & Dest Mac/Sap arguments must be given in Hex as this example : 40.00.01.37.45.01.ss (Where ss is the sap)
#
# Sample command line : check_dlswcircuit.pl -s 40.00.01.37.45.01.04 -d 40.00.02.37.45.02.04 -c secret 1.2.3.4
#
# Sample host.cfg entry :
#service[Dlsw-xx]=NCP1-NCP2;0;24x7;3;5;1;router-admins;240;24x7;1;1;0;;check_dlswcircuit!-s 40.00.01.37.45.01.04!-d 40.00..01.37.45.02.04!-c secret!1.2.3.4
# remember to add the service to commands.cfg , something like this:
# command[check_dlswcircuit]=$USER1$/check_dlswcircuit.pl $ARG1$ $ARG2$ $ARG3$ $ARG4$ $ARG5$
#
# Report bugs to: cfo@dmdata.dk
#
# 11.03.2000 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 %dlswCircuitStatus = (
'1','disconnected',
'2','circuitStart',
'3','resolvePending',
'4','circuitPending',
'5','circuitEstablished',
'6','connectPending',
'7','contactPending',
'8','connected',
'9','disconnectPending',
'10','haltPending',
'11','haltPendingNoack',
'13','circuitRestart',
'14','restartPending');
my $state = "UNKNOWN";
my $answer = "";
my $smac = "";
my $dmac = "";
my $community = "public";
my $port = 161;
#Dlsw Circuit Oid enterprises.9.10.9.1.5.2.1.17.6.0.96.148.47.230.166.4.6.64.0.1.55.69.2.4 = 8
my $enterpriseOid = "1.3.6.1.4.1";
my $ciscoDlswCircuitOid = ".9.10.9.1.5.2.1.17.";
my $unknownOid = "6.";
my $smacOid = "";
my $dmacOid = "";
my $tmpOid = "";
my @tmparg;
my $snmpoid;
my @snmpoids;
my $hostname;
my $session;
my $error;
my $response;
my $p = "";
my $q = "";
sub usage {
printf "\nMissing arguments!\n";
printf "\n";
printf "Perl Check Cisco Dlsw Circuit State plugin for Nagios\n";
printf "checks operational status of specified DLSW Circuit\n";
printf "usage: \n";
printf "check_dlswcircuit.pl -s <SourceMac> -d <DestMac> -c <READCOMMUNITY> -p <PORT> <HOSTNAME>";
printf "\nCopyright (C) 2000 Carsten Foss\n";
printf "check_dlswcircuit.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);
$status = GetOptions("sourcemac=s",\$smac,"destmac=s",\$dmac,
"community=s",\$community,
"port=i",\$port);
if ($status == 0)
{
&usage;
}
#
#Convert Source Mac & Sap
#
@tmparg = split(/\./,$smac);
#print "-$smac-\n";
#print "@tmparg\n";
#print "$#tmparg\n";
if($#tmparg != 6)
{
print "SourceMac/Sap format $smac not valid\n";
&usage;
}
while($p = shift @tmparg)
{
$q = hex($p);
$smacOid = $smacOid.$q;
$smacOid = $smacOid.'.';
}
#print "@tmparg1\n";
#print "$smacOid\n";
#
#Convert Dest Mac & Sap
#
@tmparg = split(/\./,$dmac);
#print "-$dmac-\n";
#print "@tmparg\n";
#print "$#tmparg\n";
if($#tmparg != 6)
{
print "DestMac/Sap format $dmac not valid\n";
&usage;
}
while($p = shift @tmparg)
{
$q = hex($p);
$dmacOid = $dmacOid.$q;
$dmacOid = $dmacOid.'.';
}
# Remove Trailing Dot
$dmacOid = substr($dmacOid,0,length($dmacOid)-1);
#print "@tmparg1\n";
#print "$dmacOid\n";
#Build the Dlsw Oic to use
$snmpoid = $enterpriseOid.$ciscoDlswCircuitOid.$unknownOid.$smacOid.$unknownOid.$dmacOid ;
#print "$snmpoid\n";
#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};
}
push(@snmpoids,$snmpoid);
#push(@snmpoids,$snmpLocIfDescr);
if (!defined($response = $session->get_request(@snmpoids))) {
$answer=$session->error;
$session->close;
$state = 'CRITICAL';
print ("$state: $answer,$community,$smac - $dmac");
exit $ERRORS{$state};
}
$answer = sprintf("dlsw circuit %s - %s at host '%s',is %s\n",
$smac,
$dmac,
$hostname,
$dlswCircuitStatus{$response->{$snmpoid}}
);
$session->close;
if ( $response->{$snmpoid} == 8 ) {
$state = 'OK';
}
else {
$state = 'CRITICAL';
}
print ("$state: $answer");
exit $ERRORS{$state};
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