nagios plugins return code issue

Matthew J. Salerno vagabond_king at yahoo.com
Tue Aug 17 21:45:29 CEST 2010


What is your command line?  Are you calling the script directly or is it wrapped 
in a shell script?  I took a quick look at the script, and it needs quite a bit 
of improvement.  Not sure if it was a result of my copy and paste, but there is 
only so much I can blame on bad formatting.  I would recommend looking for a 
different script that does the same thing.




----- Original Message ----
From: "Huber, Melissa" <mhuber at ascentdata.com>
To: Matthew J. Salerno <Vagabond_king at yahoo.com>; Nagios Users List 
<nagios-users at lists.sourceforge.net>
Sent: Tue, August 17, 2010 3:20:42 PM
Subject: RE: [Nagios-users] nagios plugins return code issue

Umm... Not sure.  I just tried uncommenting and got the same results though.  
I'm taking over managing the nagios server that we have from another collegue 
who left the company.  I've actually migrated everything over to another server 
that is now running the latest nagios.  The previous server was 3.0.6 I 
believe.  I tried searching for an updated version of these plugins, but 
couldn't find any.  I'm not that great with perl scripting either.  :/

Missy

-----Original Message-----
From: Matthew J. Salerno [mailto:vagabond_king at yahoo.com] 
Sent: Tuesday, August 17, 2010 2:58 PM
To: Nagios Users List
Cc: Huber, Melissa
Subject: Re: [Nagios-users] nagios plugins return code issue

For starters, why is use strict commented out?


________________________________

From: "Huber, Melissa" <mhuber at ascentdata.com>
To: nagios-users at lists.sourceforge.net
Sent: Tue, August 17, 2010 2:41:23 PM
Subject: [Nagios-users] nagios plugins return code issue


Hello all,

I've googled around everywhere trying to find an answer here and came up 
unsuccessful, so if anyone has had experience in this situation, I'd appreciate 
help!  


Basically, the issue that I'm having is that I have a couple of temperature 
plugins that are reporting errors in Nagios and at the command line they're 
exiting in 0:

check7204temp.pl  - Return code of 255 is out of bounds and checkciscotemp.pl - 
Return code of 9 is out of bounds

If I run a "echo $?" at the command line after running the command successfully, 
I get 0.

Thanks for any help anyone can provide!!  My perms are 755 and nagios user owns 
the plugins and I've run successfully with nagios user and got 0 output.  I'm 
really stumped!!

Here's the code for the plugins:

*******************************************
check7204temp.pl:

#!/usr/bin/perl -w

# check_ciscotemp.pl

#

# Copyright (C) 2000 Leland E. Vandervort <leland at 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;

#use strict;

&Getopt::Long::config('auto_abbrev');

#my $critical_vals;

#my $warning_vals;

#my $inlet_warn;

#my $outlet_warn;

#my $status;

my $response = "";

my $timeout = 10;

my $community = "blah";

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 = 34; my $hostnm; #my $OID; #my $session; #my $state; #my 
$error;

my %STATUSCODE = ( 'UNKNOWN' => '-1',

'OK' => '0',

'WARNING' => '1',

'CRITICAL' => '2');

my $state = "UNKNOWN";

 

$SIG{'ALRM'} = sub {

print "ERROR: No snmp response from $hostnm (sigALRM)\n";

exit($STATUSCODE{"UNKNOWN"});

};

Getopt::Long::Configure('bundling');

$status = GetOptions

("community=s", \$community,

"C=s", \$community,

"H=s", \$hostnm,

"hostname=s", \$hostnm,

"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($hostnm)) {

$hostnm = 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 => $hostnm,

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});

}

*******************************************************
code for checkciscotemp.pl 

#!/usr/bin/perl -w

# check_ciscotemp.pl

#

# Copyright (C) 2000 Leland E. Vandervort <leland at 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;

#use strict;

&Getopt::Long::config('auto_abbrev');

#my $critical_vals;

#my $warning_vals;

#my $inlet_warn;

#my $outlet_warn;

#my $status;

my $response = "";

my $timeout = 10;

my $community = "blah";

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 = 
22; my $outlet_thresh = 32; my $hostnm; #my $OID; #my $session; #my $state; #my 
$error;

my %STATUSCODE = ( 'UNKNOWN' => '-1',

'OK' => '0',

'WARNING' => '1',

'CRITICAL' => '2');

my $state = "UNKNOWN";

 

$SIG{'ALRM'} = sub {

print "ERROR: No snmp response from $hostnm (sigALRM)\n";

exit($STATUSCODE{"UNKNOWN"});

};

Getopt::Long::Configure('bundling');

$status = GetOptions

("community=s", \$community,

"C=s", \$community,

"H=s", \$hostnm,

"hostname=s", \$hostnm,

"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($hostnm)) {

$hostnm = 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 => $hostnm,

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});

}

*********************************************

Thanks,

Missy


      

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