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#!@@PERL@@ -w
#
# Copyright (C) 2004 Jimmy Olsen
#
# 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 sensor data from Windows boxes running Motherboard
# Monitor <http://mbm.livewiredev.com/> and SNMP-Informant - MBM agent
# <http://www.snmp-informant.com/>.
#
# Variables:
#
# host - SNMP host
# port - SNMP port
# community - SNMP community
#
# $Log$
# Revision 1.3 2004/11/16 20:08:26 jimmyo
# License cleanups.
#
# Revision 1.2 2004/09/12 10:15:07 jimmyo
# Added some documentation.
#
# Revision 1.1 2004/09/12 00:26:52 jimmyo
# Added new SNMP plugins for sensors, reading info from System-Informant on Windows boxes.
#
#
#%# family=snmpauto
#%# capabilities=snmpconf
use strict;
use Net::SNMP;
my $DEBUG = 0;
my $MAXLABEL = 20;
my $host = $ENV{host} || undef;
my $port = $ENV{port} || 161;
my $community = $ENV{community} || "public";
my $iface = $ENV{interface} || undef;
my $response;
if (defined $ARGV[0] and $ARGV[0] eq "snmpconf")
{
print "index 1.3.6.1.4.1.9600.1.10.6.1.1.\n";
print "require 1.3.6.1.4.1.9600.1.10.6.1.3. 1\n"; # Type=temperature
print "require 1.3.6.1.4.1.9600.1.10.6.1.7. [1-9]\n"; # Low value != 0
print "require 1.3.6.1.4.1.9600.1.10.6.1.9. [1-9]\n"; # High value != 0
exit 0;
}
if ($0 =~ /^(?:|.*\/)snmp_([^_]+)_sensors_mbm_temp$/)
{
$host = $1;
if ($host =~ /^([^:]+):(\d+)$/)
{
$host = $1;
$port = $2;
}
}
elsif (!defined($host))
{
print "# Debug: $0 -- $1\n" if $DEBUG;
die "# Error: couldn't understand what I'm supposed to monitor.";
}
# The OIDs we're after
my $mbmDeviceType = "1.3.6.1.4.1.9600.1.10.6.1.3."; # Should be 1 (temp)
my $mbmHighWatermark = "1.3.6.1.4.1.9600.1.10.6.1.7."; # Should be non-zero
my $mbmLowWatermark = "1.3.6.1.4.1.9600.1.10.6.1.9."; # Should be non-zero
my $mbmName = "1.3.6.1.4.1.9600.1.10.6.1.2."; # Name of sensor
my $mbmValue = "1.3.6.1.4.1.9600.1.10.6.1.6."; # Data point
my ($session, $error) = Net::SNMP->session(
-hostname => $host,
-community => $community,
-port => $port
);
if (!defined ($session))
{
die "Croaking: $error";
}
# First we want to find the harddisks...
my $correct_type = get_by_regex ($session, $mbmDeviceType, "^1\$");
my $correct_high = get_by_regex ($session, $mbmHighWatermark, "[1-9]");
my $correct_low = get_by_regex ($session, $mbmLowWatermark, "[1-9]");
my @keep = ();
foreach my $id (keys %$correct_type)
{
if (exists $correct_high->{$id} and
exists $correct_low->{$id})
{
push (@keep, $id);
}
}
my %sensors;
foreach my $kept (@keep) # For each temp sensor...
{
$sensors{$kept}{name} = get_single ($session, $mbmName . "$kept");
}
if (defined $ARGV[0] and $ARGV[0] eq "config")
{
print "host_name $host\n";
print "graph_title Temperatures\n";
print "graph_args --upper-limit 100 -l 0\n";
print "graph_vlabel Celcius\n";
print "graph_category sensors\n";
print "graph_info This graph shows temperatures in the system.\n";
foreach my $sensor (keys %sensors)
{
print (&get_name_by_sensor ($sensors{$sensor}{name}), ".label ");
print (length($sensors{$sensor}{name})<=$MAXLABEL ? $sensors{$sensor}{name} : "...".substr($sensors{$sensor}{name},-($MAXLABEL-3)));
print ("\n");
print (&get_name_by_sensor ($sensors{$sensor}{name}), ".info Temperature readout from the motherboard sensor \"$sensors{$sensor}{name}\".\n");
}
exit 0;
}
foreach my $sensor (keys %sensors)
{
my $val = get_single ($session, $mbmValue . $sensor);
print (&get_name_by_sensor ($sensors{$sensor}{name}), ".value $val\n");
}
sub get_single
{
my $handle = shift;
my $oid = shift;
print "# Getting single \"$oid\"..." if $DEBUG;
$response = $handle->get_request ($oid);
if (!defined $response->{$oid})
{
print "undef\n" if $DEBUG;
return undef;
}
else
{
print "\"$response->{$oid}\"\n" if $DEBUG;
return $response->{$oid};
}
}
sub get_by_regex
{
my $handle = shift;
my $oid = shift;
my $regex = shift;
my $result = {};
my $num = 0;
my $ret = $oid . "0";
my $response;
print "# Starting browse of $oid...\n" if $DEBUG;
while (1)
{
if ($num == 0)
{
print "# Checking for $ret...\n" if $DEBUG;
$response = $handle->get_request ($ret);
}
if ($num or !defined $response)
{
print "# Checking for sibling of $ret...\n" if $DEBUG;
$response = $handle->get_next_request ($ret);
}
if (!$response)
{
return undef;
}
my @keys = keys %$response;
$ret = $keys[0];
print "# Analyzing $ret (compared to $oid)...\n" if $DEBUG;
last unless ($ret =~ /^$oid/);
$num++;
next unless ($response->{$ret} =~ /$regex/);
@keys = split (/\./, $ret);
$result->{$keys[-1]} = $response->{$ret};;
print "# Index $num: ", $keys[-1], " (", $response->{$ret}, ")\n" if $DEBUG;
};
return $result;
}
sub get_name_by_sensor
{
my $mp = shift;
$mp =~ s/[^a-z0-9_]/_/gi;
$mp =~ tr/A-Z/a-z/;
return "p" . $mp;
}
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