Munin contributed plugins

#!/usr/bin/perl -w

#

# File: snmp__gwia_bytes__

# Copyright (C) 2007 Gabriele Pohl

#

# Derived from plugin snmp__load

# Copyright (C) 2004 Jimmy Olsen, Dagfinn Ilmari Mannsaaker

#

# 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; version 2 dated June,

# 1991.

#

# 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.

#

# ------------------------------------------------------------

# Plugin to monitor Novell Groupwise Internet Agent (GWIA)

# ------------------------------------------------------------

# 

# Management Information Base (MIB) GWIAMIB 

#

# Naming Tree: 1.3.6.1.4.1.23

#      iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) novell(23)

#

# To see all values available for your GWIA, type

# snmpwalk -v1 -c public -m GWIAMIB <HOST> gwia

#

# This plugin fetches:  

#

# * gwiaGatewayName - 1.3.6.1.4.1.23.2.70.1.1.

# * gwiaStatBytesIn - 1.3.6.1.4.1.23.2.70.1.6.

# * gwiaStatBytesOut - 1.3.6.1.4.1.23.2.70.1.5.

#

# Usage:

# --------------

# Link this file snmp__gwia_bytes_ to your nodes servicedir [/etc/munin/plugins] 

#

# as: 

#   snmp_<host>_gwia_bytes_<pos>  

#

# with:

#   <host> = Name or IP-Number of host 

#   <pos> = table index of the GWIA Object

# 

# E.g.

#    ln -s /usr/share/munin/plugins/snmp__gwia_bytes_ \

#    /etc/munin/plugins/snmp_foo.example.com_gwia_bytes_0

# ...will monitor a single GWIA object on host foo.example.com. 

#

# Parameters

#	community - Specify wich community string to use (Default: public)

# 	port - Specify which port to read from (Default: 161)

#	host - Specify which host to monitor (Default: Read from link in servicedir)

#	pos - Specify which table Object to read (Default: Read from link in servicedir, 

# 

# You may adjust settings to your need via configuration in plugin-conf.d/munin-node:

#   [snmp_*_gwia_bytes_*]

#   env.port <your_port_number>

#   env.community <your SNMP community string>

#   env.pos <your objects table position. Values: 0,1,2,..> 

#   env.host <name or IP of your host>

#

# Parameters can also be specified on a per GWIA basis, eg:

#   [snmp_example.com_gwia_bytes_1]

#   env.port 166

#   env.community example

#

# $Log$

# Revision 1.0	2007/09/06 16:49	gap

# Created by gap

#

#%# family=snmpauto

#%# capabilities=snmpconf

use strict;

use Net::SNMP;

my $DEBUG = 0;

my $host      = $ENV{host}      || undef;

my $port      = $ENV{port}      || 161;

my $community = $ENV{community} || "public";

my $pos       = $ENV{pos} || 0;

my $response;

my $GRAPH_CATEGORY = "Groupwise";

my $GRAPH_PERIOD = "minute";

my $GRAPH_VLABEL = "bytes per $GRAPH_PERIOD in(-) / out(+)";

my $BYTES_LABEL='Bytes';

if (defined $ARGV[0] and $ARGV[0] eq "snmpconf")

{	

	print "require 1.3.6.1.4.1.23.2.70.1.1. [.*]\n"; # gwiaGatewayName 

	print "require 1.3.6.1.4.1.23.2.70.1.6. [\\d*]\n"; # gwiaStatBytesIn

	print "require 1.3.6.1.4.1.23.2.70.1.5. [\\d*]\n"; # gwiaStatBytesOut

	exit 0;

}

if ($0 =~ /^(?:|.*\/)snmp_([^_]+)_gwia_bytes_(\d+)*$/)

{

	$host  = $1;

	$pos   = $2;

}

elsif (!defined($host))

{

	print "# Debug: $0 -- $1\n" if $DEBUG;

	die "# Error: couldn't understand what I'm supposed to monitor.";

}

my ($session, $error) = Net::SNMP->session(

		-hostname  => $host,

		-community => $community,

		-port      => $port

	);

if (!defined ($session))

{

	die "Croaking: $error";

}

if (defined $ARGV[0] and $ARGV[0] eq "config")

{

	# get name of Internet Agent 

	my $gwname = &get_single ($session, "1.3.6.1.4.1.23.2.70.1.1.$pos"); # gwiaGatewayName 

        # output to munin

	print "host_name $host

graph_category $GRAPH_CATEGORY

graph_args --base 1000

graph_period $GRAPH_PERIOD

graph_title GWIA byte load ($gwname)

graph_info Shows per minute activity of the Groupwise Internet Agent (GWIA), here: $gwname.<br />Outgoing data will be reported as positive value, incoming as negative value.<br />The plugin fetches the following values (GWIAMIB):<br />gwiaStatBytesOut - Size of outgoing messages in bytes.<br />gwiaStatBytesIn - Size of incoming messages in bytes.

graph_vlabel $GRAPH_VLABEL

bytes_in.label $BYTES_LABEL

bytes_in.info gwiaStatBytesIn (1.3.6.1.4.1.23.2.70.1.6.)

bytes_in.type DERIVE

bytes_in.min 0

bytes_in.draw AREA

bytes_in.graph no

bytes_out.label $BYTES_LABEL

bytes_out.info gwiaStatBytesOut (1.3.1.4.1.23.2.70.1.5.)

bytes_out.type DERIVE

bytes_out.min 0

bytes_out.draw AREA

bytes_out.negative bytes_in";

	exit 0;

}

	# fetch the data and print

	print "bytes_in.value ", &get_single ($session, "1.3.6.1.4.1.23.2.70.1.6.$pos"), "\n"; # gwiaStatBytesIn

	print "bytes_out.value ", &get_single ($session, "1.3.6.1.4.1.23.2.70.1.5.$pos"), "\n"; # gwiaStatBytesOut

sub get_single

{

	my $handle = shift;

	my $oid    = shift;

	print "# Getting single $oid...\n" if $DEBUG;

	$response = $handle->get_request ($oid);

	if (!defined $response->{$oid})

	{

	    return undef;

	}

	else

	{

	    return $response->{$oid};

	}

}