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J.M.Roth 2008-08-05 09:13:09 +02:00 committed by Steve Schnepp
parent 07d4c7992b
commit bf481e2612
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plugins/other/snmp__memory_openwrt Executable file
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#!/usr/bin/perl -w
#
# Copyright (C) 2008 J.M.Roth
#
# 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.
#
#
# $Log$
#
# Inspired by snmp__processes
#
#%# 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 $iface = $ENV{interface} || undef;
my $response;
if (defined $ARGV[0] and $ARGV[0] eq "snmpconf")
{
print "require 1.3.6.1.2.1.25.2.3.1.5.2\n"; # Number
print "require 1.3.6.1.2.1.25.2.3.1.6.2\n"; # Number
exit 0;
}
my @split_result = split(/_/, $0);
$host = $split_result[1];
if ($host =~ /^([^:]+):(\d+)$/)
{
$host = $1;
$port = $2;
}
if ($host eq '' || !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")
{
print "host_name $host\n";
print "graph_title Memory usage
graph_args --base 1000 -l 0
graph_vlabel kB
graph_category system
graph_info This graph shows total and used memory on the host.
memsize.label total
memused.label used
memsize.info The total memory.
memused.info The memory in use.
memsize.draw LINE1
memused.draw LINE2
";
exit 0;
}
print "memsize.value ", &get_single ($session, "1.3.6.1.2.1.25.2.3.1.5.2"), "\n";
print "memused.value ", &get_single ($session, "1.3.6.1.2.1.25.2.3.1.6.2"), "\n";
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};
}
}