diff --git a/plugins/other/snmp__memory_openwrt b/plugins/other/snmp__memory_openwrt new file mode 100755 index 00000000..736af06a --- /dev/null +++ b/plugins/other/snmp__memory_openwrt @@ -0,0 +1,109 @@ +#!/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}; + } +}