SNMP::Info::Layer2::Airespace - SNMP Interface to Cisco (Airespace) Wireless

    #Let SNMP::Info determine the correct subclass for you.

    my $airespace = new SNMP::Info(
                          AutoSpecify => 1,
                          Debug       => 1,
                          DestHost    => 'myswitch',
                          Community   => 'public',
                          Version     => 2
                        ) 

    or die "Can't connect to DestHost.\n";

    my $class = $airespace->class();
    print " Using device sub class : $class\n";

# SNMP::Info::Layer2::Airespace
# $Id$
#
# Copyright (c) 2008 Eric Miller
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright notice,
#       this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the University of California, Santa Cruz nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

package SNMP::Info::Layer2::Airespace;

use strict;
use Exporter;
use SNMP::Info::Bridge;
use SNMP::Info::CDP;
use SNMP::Info::Airespace;

@SNMP::Info::Layer2::Airespace::ISA
    = qw/SNMP::Info::Airespace SNMP::Info::CDP SNMP::Info::Bridge Exporter/;
@SNMP::Info::Layer2::Airespace::EXPORT_OK = qw//;

use vars qw/$VERSION %FUNCS %GLOBALS %MIBS %MUNGE/;

$VERSION = '2.05';

%MIBS = (
    %SNMP::Info::MIBS,      %SNMP::Info::Bridge::MIBS,
    %SNMP::Info::CDP::MIBS, %SNMP::Info::Airespace::MIBS,
    'AIRESPACE-SWITCHING-MIB' => 'agentInterfaceVlanId',
    'CISCO-LWAPP-DOT11-CLIENT-MIB' => 'cldcClientCurrentTxRateSet',
);

%GLOBALS = (
    %SNMP::Info::GLOBALS,      %SNMP::Info::Bridge::GLOBALS,
    %SNMP::Info::CDP::GLOBALS, %SNMP::Info::Airespace::GLOBALS,
);

%FUNCS = (
    %SNMP::Info::FUNCS,      %SNMP::Info::Bridge::FUNCS,
    %SNMP::Info::CDP::FUNCS, %SNMP::Info::Airespace::FUNCS,

    # This needs to be cleaned up, but for now we pretend to
    # have the CISCO-DOT11-MIB for signal strengths, etc.
    'cd11_sigstrength' => 'bsnMobileStationRSSI',	# kinda
    'cd11_sigqual'     => 'bsnMobileStationSnr',	# kinda
    'cd11_rxbyte'      => 'bsnMobileStationBytesReceived',
    'cd11_txbyte'      => 'bsnMobileStationBytesSent',
    'cd11_rxpkt'       => 'bsnMobileStationPacketsReceived',
    'cd11_txpkt'       => 'bsnMobileStationPacketsSent',
    'cd11_txrate'      => 'cldcClientCurrentTxRateSet',
    'cd11_rateset'     => 'cldcClientDataRateSet',
);

%MUNGE = (
    %SNMP::Info::MUNGE,      %SNMP::Info::Bridge::MUNGE,
    %SNMP::Info::CDP::MUNGE, %SNMP::Info::Airespace::MUNGE,
    'cd11_rxpkt'	=> \&munge_64bits,
    'cd11_txpkt'	=> \&munge_64bits,
    'cd11_txrate'       => \&munge_cd11_txrate,
    'cd11_rateset'      => \&munge_cd11_rateset,
);

sub os {
    return 'cisco';
}

sub vendor {
    return 'cisco';
}

sub model {
    my $airespace = shift;
    my $model     = $airespace->airespace_model();
    return unless defined $model;

    return $model;
}

# vlan:
# AIRESPACE-SWITCHING-MIB::agentInterfaceVlanId

sub cd11_mac {
    my $airespace = shift;
    my $cd11_sigstrength = $airespace->cd11_sigstrength();

    my $ret = {};
    foreach my $idx ( keys %$cd11_sigstrength ) {
	my $mac = join( ":", map { sprintf "%02x", $_ } split /\./, $idx );
	$ret->{$idx} = $mac
    }
    return $ret;
}

sub munge_cd11_txrate {
    my $rate = shift;
    if ( $rate ) {
        return [ $rate * 1.0 ];
    } else {
        return [ 0.0 ];
    }
}

sub munge_cd11_rateset {
    my $rates = shift;
    return [ map { $_ * 1.0 } split /,/, $rates ];
}

sub munge_64bits {
    # The controller sometimes hands off a ridiculous value for packets.
    # Just truncate it to 32 bits.
    my $value = shift;
    return $value & 0xffffffff;
}

1;
__END__