197 lines
5.5 KiB
Perl
197 lines
5.5 KiB
Perl
# SNMP::Info::CiscoPower
|
|
#
|
|
# Copyright (c) 2008 Bill Fenner
|
|
# All rights reserved.
|
|
#
|
|
# 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::CiscoPower;
|
|
|
|
use strict;
|
|
use warnings;
|
|
use Exporter;
|
|
use SNMP::Info;
|
|
|
|
@SNMP::Info::CiscoPower::ISA = qw/SNMP::Info Exporter/;
|
|
@SNMP::Info::CiscoPower::EXPORT_OK = qw//;
|
|
|
|
our ($VERSION, %MIBS, %FUNCS, %GLOBALS, %MUNGE);
|
|
|
|
$VERSION = '3.71';
|
|
|
|
%MIBS = ( 'CISCO-POWER-ETHERNET-EXT-MIB' => 'cpeExtPsePortEntPhyIndex',
|
|
'CISCO-CDP-MIB' => 'cdpCachePowerConsumption',
|
|
);
|
|
|
|
%GLOBALS = ();
|
|
|
|
%FUNCS = (
|
|
'cpeth_ent_phy' => 'cpeExtPsePortEntPhyIndex',
|
|
'peth_port_power' => 'cpeExtPsePortPwrConsumption',
|
|
);
|
|
|
|
%MUNGE = ();
|
|
|
|
# Cisco overcame the limitation of the module.port index of the
|
|
# pethPsePortTable by adding another mapping table, which maps
|
|
# a pethPsePortTable row to an entPhysicalTable index, which can
|
|
# then be mapped to ifIndex.
|
|
sub peth_port_ifindex {
|
|
my $cpeth = shift;
|
|
my $partial = shift;
|
|
|
|
my $ent_phy = $cpeth->cpeth_ent_phy($partial);
|
|
my $e_port = $cpeth->e_port();
|
|
|
|
my $peth_port_ifindex = {};
|
|
foreach my $i ( keys %$ent_phy ) {
|
|
if ( $e_port->{ $ent_phy->{$i} } ) {
|
|
$peth_port_ifindex->{$i} = $e_port->{ $ent_phy->{$i} };
|
|
}
|
|
}
|
|
return $peth_port_ifindex;
|
|
}
|
|
|
|
# peth_port_neg_power uses the same index as the other peth_port_* tables.
|
|
# However, cdpCachePowerConsumption uses <ifIndex>.<neighbor>.
|
|
# Therefore, we have to invert peth_port_ifindex, to get to
|
|
# the index that is expected and the rest of the code can re-invert it.
|
|
sub peth_port_neg_power {
|
|
my $cpeth = shift;
|
|
my $partial = shift;
|
|
|
|
# Ignoring partial, since it's not easy to implement properly.
|
|
my $index = $cpeth->peth_port_ifindex();
|
|
my %inverse_index;
|
|
foreach my $i ( keys %$index ) {
|
|
$inverse_index{ $index->{$i} } = $i;
|
|
}
|
|
my $neg_power = $cpeth->cdpCachePowerConsumption();
|
|
my $peth_port_neg_power = {};
|
|
foreach my $i ( keys %$neg_power ) {
|
|
my( $ifIndex, $nbrIndex ) = split( /\./, $i );
|
|
if ( defined( $inverse_index{ $ifIndex } ) ) {
|
|
$peth_port_neg_power->{ $inverse_index{ $ifIndex } } = $neg_power->{ $i };
|
|
}
|
|
}
|
|
return $peth_port_neg_power;
|
|
}
|
|
|
|
1;
|
|
|
|
__END__
|
|
|
|
=head1 NAME
|
|
|
|
SNMP::Info::CiscoPower - SNMP Interface to data stored in
|
|
F<CISCO-POWER-ETHERNET-EXT-MIB>.
|
|
|
|
=head1 AUTHOR
|
|
|
|
Bill Fenner
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
# Let SNMP::Info determine the correct subclass for you.
|
|
my $poe = new SNMP::Info(
|
|
AutoSpecify => 1,
|
|
Debug => 1,
|
|
DestHost => 'myswitch',
|
|
Community => 'public',
|
|
Version => 2
|
|
)
|
|
or die "Can't connect to DestHost.\n";
|
|
|
|
my $class = $poe->class();
|
|
print "SNMP::Info determined this device to fall under subclass : $class\n";
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
The Info::PowerEthernet class needs a per-device helper function to
|
|
properly map the C<pethPsePortTable> to C<ifIndex> values. This class
|
|
provides that helper, using F<CISCO-POWER-ETHERNET-EXT-MIB>.
|
|
It does not define any helpers for the extra values that this MIB
|
|
contains.
|
|
|
|
Create or use a device subclass that inherit this class. Do not use directly.
|
|
|
|
For debugging purposes you can call this class directly as you would
|
|
SNMP::Info
|
|
|
|
my $poe = new SNMP::Info::CiscoPower (...);
|
|
|
|
=head2 Inherited Classes
|
|
|
|
none.
|
|
|
|
Note that it requires that the device inherits from Info::Entity.
|
|
|
|
=head2 Required MIBs
|
|
|
|
=over
|
|
|
|
=item F<CISCO-POWER-ETHERNET-EXT-MIB>
|
|
|
|
=item F<CISCO-CDP-MIB>
|
|
|
|
=back
|
|
|
|
=head1 GLOBALS
|
|
|
|
none.
|
|
|
|
=head1 TABLE METHODS
|
|
|
|
These are methods that return tables of information in the form of a reference
|
|
to a hash.
|
|
|
|
=head2 Power Port Table
|
|
|
|
=over
|
|
|
|
=item $poe->peth_port_ifindex()
|
|
|
|
Maps the C<pethPsePortTable> to C<ifIndex> by way of the F<ENTITY-MIB>.
|
|
|
|
=item $poe->peth_port_power()
|
|
|
|
Power supplied by PoE ports, in milliwatts
|
|
(C<cpeExtPsePortPwrConsumption>)
|
|
|
|
=back
|
|
|
|
=head2 CDP Port table
|
|
|
|
=over
|
|
|
|
=item $poe->peth_port_neg_power()
|
|
|
|
Power negotiated using CDP, in milliwatts
|
|
(C<cdpCachePowerConsumption>)
|
|
|
|
=back
|
|
|
|
=cut
|