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#!@@PERL@@ -w
#
# Copyright (C) 2004 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 fetch temperature data from the ServerView SNMP agent on
# Fujitsu Simens servers
#
# $Log$
# Revision 1.5 2004/11/23 16:59:38 jimmyo
# Include SNMP.pm in the files. We don't want any perl modules in the node for the 1.2 series.
#
# Revision 1.4 2004/11/16 20:08:26 jimmyo
# License cleanups.
#
# Revision 1.3 2004/11/12 20:28:03 ilmari
# No debugging info by default
#
# Revision 1.2 2004/11/12 20:23:57 ilmari
# Rename Munin::Node::SNMP to Munin::Plugin::SNMP
#
# Revision 1.1 2004/10/27 18:58:26 ilmari
# Added SNMP plugins for Fujitsu Siemens ServerView temperature and fan sensors
#
#
#%# family=snmpauto
#%# capabilities=snmpconf
package Munin::Plugin::SNMP;
use Net::SNMP;
@ISA = qw(Net::SNMP);
sub session {
my $class = shift;
my $host = $ENV{host} || undef;
my $port = $ENV{port} || 161;
my $community = $ENV{community} || 'public';
my $version = $ENV{version} || undef;
if ($0 =~ /^(?:.*\/)?snmp_([^_]+)_/) {
$host = $1;
if ($host =~ /^([^:]+):(\d+)$/) {
$host = $1;
$port = $2;
}
} elsif (!defined($host)) {
return unless wantarray; # Scalar or void context
return (undef, 'Couldn not find monitoring target.'); # Array context
}
return $class->SUPER::session(-hostname => $host,
-community => $community,
-port => $port,
($version ? (-version => $version) : ()));
}
sub get_hash {
my $self = shift;
my %args = @_;
my %ret;
my $base = $args{'-baseoid'};
my $cols = delete $args{'-cols'} or return;
my $table = $self->get_table(%args)
or return;
my $subtabs = join '|', keys %$cols;
my $re = qr/^\Q$base.\E($subtabs)\.(.*)/;
for my $key (keys %$table) {
$key =~ $re;
next unless defined($1 && $2);
$ret{$2}{$cols->{$1}} = $table->{$key};
}
return \%ret;
}
package main;
use strict;
use Net::SNMP qw(oid_lex_sort);
# The OIDs we're after
my $tempBase = '1.3.6.1.4.1.231.2.10.2.2.5.2.1.1';
# Subtables
my $tempCabinetId = 1;
my $tempSensorNumber = 2;
my $tempSensorStatus = 3;
my $tempSensorPurpose = 4;
my $tempUpperWarningLevel = 6;
my $tempUpperCriticalLevel = 8;
my $tempCurrentValue = 11;
my $tempSensorDesignation = 13;
# Magic values
my $tempSensorUnknown = 1;
my $tempSensorDisabled = 2;
my $tempSensorUnavailable = 99;
if (defined $ARGV[0] and $ARGV[0] eq 'snmpconf') {
print "index $tempBase.\n";
# Require known, enabled and available sensors
print "require $tempBase.$tempSensorStatus. ^[3-9]|[1-8][0-9]|9[0-8]\$\n";
exit 0;
}
my $DEBUG = 0;
my ($session, $error) = Munin::Plugin::SNMP->session();
if ($error) {
die "# Error: $error\n";
}
my $temps = $session->get_hash(-baseoid => $tempBase,
-cols => { $tempCabinetId => 'cabinet',
$tempSensorNumber => 'number',
$tempSensorStatus => 'status',
$tempSensorPurpose => 'purpose',
$tempUpperWarningLevel => 'warning',
$tempUpperCriticalLevel => 'critical',
$tempCurrentValue => 'value',
$tempSensorDesignation => 'label',
},
) or die $session->error();
for my $key (keys %$temps) {
my $temp = $temps->{$key};
$temp->{info} = "Cabinet $temp->{cabinet} sensor $temp->{number}";
# Delete sensors with status unknown, disabled or unavailable
delete $temps->{$key}
if $temp->{status} == $tempSensorUnknown ||
$temp->{status} == $tempSensorDisabled ||
$temp->{status} == $tempSensorUnavailable;
}
if (defined $ARGV[0] and $ARGV[0] eq 'config') {
print <<EOM;
graph_title Temperatures
graph_args -l 0
graph_vlabel degrees Celcius
graph_category sensors
EOM
print 'graph_order ', join(' ', map { get_id($_) } oid_lex_sort keys %$temps), "\n";
print 'host_name ', $session->hostname(), "\n";
for my $sensor (keys %$temps) {
my $id = get_id($sensor);
for my $key (qw(label warning critical info)) {
print "$id.$key $temps->{$sensor}->{$key}\n";
}
print "$id.type GAUGE\n";
}
} else {
print get_id($_), '.value ', $temps->{$_}{value}, "\n"
for keys %$temps;
}
sub get_id {
(my $id = shift) =~ tr/\./_/;
return 'temp'.$id;
}
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