421 lines
10 KiB
Perl
421 lines
10 KiB
Perl
# SNMP::Info::Layer2::Aruba
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# Eric Miller
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# $Id$
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#
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# Copyright (c) 2005 Eric Miller
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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# * Neither the name of the University of California, Santa Cruz nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package SNMP::Info::Layer2::Aruba;
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$VERSION = 1.0;
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use strict;
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use Exporter;
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use SNMP::Info;
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use SNMP::Info::Bridge;
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@SNMP::Info::Layer2::Aruba::ISA = qw/SNMP::Info SNMP::Info::Bridge Exporter/;
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@SNMP::Info::Layer2::Aruba::EXPORT_OK = qw//;
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use vars qw/$VERSION %FUNCS %GLOBALS %MIBS %MUNGE $AUTOLOAD $INIT $DEBUG/;
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%MIBS = (
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%SNMP::Info::MIBS,
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%SNMP::Info::Bridge::MIBS,
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'WLSX-SWITCH-MIB' => 'wlsxHostname',
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);
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%GLOBALS = (
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%SNMP::Info::GLOBALS,
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%SNMP::Info::Bridge::GLOBALS,
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);
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%FUNCS = (
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%SNMP::Info::FUNCS,
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%SNMP::Info::Bridge::FUNCS,
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'i_index2' => 'ifIndex',
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'i_name2' => 'ifName',
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# WLSX-SWITCH-MIB::wlsxSwitchAccessPointTable
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# Table index leafs do not return information
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# therefore unable to use apESSID. We extract
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# the information from the IID instead.
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#'aruba_ap_essid' => 'apESSID',
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'aruba_ap_name' => 'apLocation',
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'aruba_ap_ip' => 'apIpAddress',
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# WLSX-SWITCH-MIB::wlsxSwitchStationMgmtTable
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# Table index leafs do not return information
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# therefore unable to use staAccessPointBSSID
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# or staPhyAddress. We extract the information from
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# the IID instead.
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#'fw_port' => 'staAccessPointBSSID',
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#'fw_mac' => 'staPhyAddress',
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'fw_user' => 'staUserName',
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);
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%MUNGE = (
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%SNMP::Info::MUNGE,
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%SNMP::Info::Bridge::MUNGE,
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);
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sub layers {
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return '00000011';
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}
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sub os {
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return 'airos';
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}
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sub vendor {
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return 'aruba';
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}
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sub os_ver {
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my $aruba = shift;
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my $descr = $aruba->description();
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return undef unless defined $descr;
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if ($descr =~ m/Version\s+(\d+\.\d+\.\d+\.\d+)/){
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return $1;
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}
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return undef;
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}
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sub model {
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my $aruba = shift;
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my $id = $aruba->id();
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return undef unless defined $id;
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my $model = &SNMP::translateObj($id);
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return $id unless defined $model;
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return $model;
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}
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# Thin APs do not support ifMIB requirement
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sub i_index {
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my $aruba = shift;
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my $i_index = $aruba->i_index2();
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my $ap_index = $aruba->aruba_ap_name();
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my %if_index;
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foreach my $iid (keys %$i_index){
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my $index = $i_index->{$iid};
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next unless defined $index;
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$if_index{$iid} = $index;
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}
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# Get Attached APs as Interfaces
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foreach my $ap_id (keys %$ap_index){
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# Convert the 0.254.123.456 index entry to a MAC address.
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my $mac = join(':',map {sprintf("%02x",$_)} split(/\./,$ap_id));
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$if_index{$ap_id} = $mac;
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}
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return \%if_index;
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}
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sub interfaces {
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my $aruba = shift;
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my $i_index = $aruba->i_index();
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my $i_descr = $aruba->i_description();
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my %if;
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foreach my $iid (keys %$i_index){
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my $index = $i_index->{$iid};
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next unless defined $index;
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if ($index =~ /^\d+$/ ) {
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# Replace the Index with the ifDescr field.
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my $port = $i_descr->{$iid};
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next unless defined $port;
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$if{$iid} = $port;
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}
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elsif ($index =~ /(?:[0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}/) {
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$if{$index} = $index;
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}
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else {
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next;
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}
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}
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return \%if;
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}
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sub i_name {
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my $aruba = shift;
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my $i_index = $aruba->i_index();
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my $i_name2 = $aruba->i_name2();
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my $ap_name = $aruba->aruba_ap_name();
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my %i_name;
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foreach my $iid (keys %$i_index){
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my $index = $i_index->{$iid};
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next unless defined $index;
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if ($index =~ /^\d+$/ ) {
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my $name = $i_name2->{$iid};
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next unless defined $name;
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$i_name{$index} = $name;
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}
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elsif ($index =~ /(?:[0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}/) {
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my $name = $ap_name->{$iid};
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next unless defined $name;
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$i_name{$index} = $name;
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}
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else {
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next;
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}
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}
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return \%i_name;
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}
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# Wireless switches do not support the standard Bridge MIB
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sub bp_index {
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my $aruba = shift;
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my $i_index = $aruba->i_index2();
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my $ap_index = $aruba->aruba_ap_name();
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my %bp_index;
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foreach my $iid (keys %$i_index){
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my $index = $i_index->{$iid};
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next unless defined $index;
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$bp_index{$iid} = $index;
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}
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# Get Attached APs as Interfaces
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foreach my $ap_id (keys %$ap_index){
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# Convert the 0.254.123.456 index entry to a MAC address.
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my $mac = join(':',map {sprintf("%02x",$_)} split(/\./,$ap_id));
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$bp_index{$mac} = $mac;
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}
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return \%bp_index;
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}
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sub fw_port {
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my $aruba = shift;
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my $fw_idx = $aruba->fw_user();
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my %fw_port;
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foreach my $iid (keys %$fw_idx){
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if ($iid =~ /(\d+\.\d+\.\d+\.\d+\.\d+\.\d+).(\d+\.\d+\.\d+\.\d+\.\d+\.\d+)/) {
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my $port = join(':',map {sprintf("%02x",$_)} split(/\./,$2));
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$fw_port{$iid} = $port;
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}
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else {
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next;
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}
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}
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return \%fw_port;
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}
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sub fw_mac {
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my $aruba = shift;
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my $fw_idx = $aruba->fw_user();
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my %fw_mac;
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foreach my $iid (keys %$fw_idx){
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if ($iid =~ /(\d+\.\d+\.\d+\.\d+\.\d+\.\d+).(\d+\.\d+\.\d+\.\d+\.\d+\.\d+)/) {
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my $mac = join(':',map {sprintf("%02x",$_)} split(/\./,$1));
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$fw_mac{$iid} = $mac;
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}
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else {
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next;
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}
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}
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return \%fw_mac;
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}
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1;
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__END__
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=head1 NAME
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SNMP::Info::Layer2::Aruba - SNMP Interface to Aruba wireless switches
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=head1 AUTHOR
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Eric Miller
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=head1 SYNOPSIS
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my $aruba = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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DestHost => 'myswitch',
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Community => 'public',
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Version => 2
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)
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or die "Can't connect to DestHost.\n";
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my $class = $aruba->class();
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print " Using device sub class : $class\n";
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=head1 DESCRIPTION
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SNMP::Info::Layer2::Aruba is a subclass of SNMP::Info that provides an interface
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to Aruba wireless switches. The Aruba platform utilizes intelligent wireless
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switches which control thin access points. The thin access points themselves
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are unable to be polled for end station information.
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This class emulates bridge functionality for the wireless switch. This enables
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end station MAC addresses collection and correlation to the thin access point
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the end station is using for communication.
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For speed or debugging purposes you can call the subclass directly, but not after
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determining a more specific class using the method above.
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my $aruba = new SNMP::Info::Layer2::Aruba(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info
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=item SNMP::Info::Bridge
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=back
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=head2 Required MIBs
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=over
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=item WLSX-SWITCH-MIB
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=item Inherited Classes' MIBs
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See SNMP::Info for its own MIB requirements.
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See SNMP::Info::Bridge for its own MIB requirements.
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=back
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=head1 GLOBALS
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These are methods that return scalar value from SNMP
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=over
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=item $aruba->model()
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Returns model type. Cross references $aruba->id() with product IDs in the
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Aruba MIB.
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=item $aruba->vendor()
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Returns 'aruba'
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=item $aruba->os()
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Returns 'airos'
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=item $aruba->os_ver()
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Returns the software version extracted from B<sysDescr>
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=back
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=head2 Overrides
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=over
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=item $aruba->layers()
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Returns 00000011. Class emulates Layer 2 functionality for Thin APs through
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proprietary MIBs.
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=back
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=head1 TABLE ENTRIES
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These are methods that return tables of information in the form of a reference
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to a hash.
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=head2 Overrides
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=over
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=item $aruba->i_index()
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Returns reference to map of IIDs to Interface index.
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Extends ifIndex to support thin APs as device interfaces.
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=item $aruba->interfaces()
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Returns reference to map of IIDs to ports. Thin APs are implemented as device
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interfaces. The thin AP MAC address is used as the port identifier.
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=item $aruba->i_name()
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Interface name. Returns (B<ifName>) for Ethernet interfaces and (B<apLocation>)
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for thin AP interfaces.
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=item $aruba->bp_index()
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Simulates bridge MIB by returning reference to a hash containing the index for
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both the keys and values.
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=item $aruba->fw_port()
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(B<staAccessPointBSSID>) as extracted from the IID.
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=item $aruba->fw_mac()
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(B<staPhyAddress>) as extracted from the IID.
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=back
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=head2 Aruba Switch AP Table (B<wlsxSwitchAccessPointTable>)
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=over
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=item $aruba->aruba_ap_name()
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(B<apLocation>)
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=item $aruba->aruba_ap_ip()
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(B<apIpAddress>)
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=back
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=head2 Aruba Switch Station Management Table (B<wlsxSwitchStationMgmtTable>)
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=over
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=item $aruba->fw_user()
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(B<staUserName>)
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=cut
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