322 lines
7.9 KiB
Perl
322 lines
7.9 KiB
Perl
# SNMP::Info::Layer2::Netgear
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# $Id$
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#
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# Copyright (c) 2008 Bill Fenner
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# All rights reserved.
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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
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# notice, this list of conditions and the following disclaimer in the
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# documentation 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"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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package SNMP::Info::Layer2::Netgear;
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use strict;
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use Exporter;
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use SNMP::Info::Layer2;
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use SNMP::Info::LLDP;
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@SNMP::Info::Layer2::Netgear::ISA = qw/SNMP::Info::LLDP SNMP::Info::Layer2 Exporter/;
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@SNMP::Info::Layer2::Netgear::EXPORT_OK = qw//;
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use vars qw/$VERSION %GLOBALS %MIBS %FUNCS %MUNGE/;
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$VERSION = '2.07_001';
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%MIBS = ( %SNMP::Info::Layer2::MIBS, %SNMP::Info::LLDP::MIBS, );
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%GLOBALS = (
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%SNMP::Info::Layer2::GLOBALS, %SNMP::Info::LLDP::GLOBALS,
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ng_serial => '.1.3.6.1.4.1.4526.10.1.1.1.4.0',
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ng_osver => '.1.3.6.1.4.1.4526.10.1.1.1.13.0',
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);
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%FUNCS = ( %SNMP::Info::Layer2::FUNCS, %SNMP::Info::LLDP::FUNCS, );
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%MUNGE = ( %SNMP::Info::Layer2::MUNGE, %SNMP::Info::LLDP::MUNGE, );
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sub vendor {
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return 'netgear';
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}
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sub os {
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return 'netgear';
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}
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# Wish the OID-based method worked, but netgear scatters
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# the sysObjectID values across all the device MIBs, and
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# makes the device MIBs state secrets.
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# They seem to set sysDescr to the model number, though,
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# so we'll use that.
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sub model {
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my $netgear = shift;
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return $netgear->description();
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}
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#
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# This is model-dependent. Some netgear brand devices don't implement
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# the bridge MIB forwarding table, so we use the Q-BRIDGE-MIB forwarding
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# table. Fall back to the orig functions if the qb versions don't
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# return anything.
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sub fw_mac {
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my $netgear = shift;
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my $ret = $netgear->qb_fw_mac();
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$ret = $netgear->orig_fw_mac() if ( !defined($ret) );
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return $ret;
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}
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sub fw_port {
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my $netgear = shift;
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my $ret = $netgear->qb_fw_port();
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$ret = $netgear->orig_fw_port() if ( !defined($ret) );
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return $ret;
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}
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# these seem to work for GSM models but not GS
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# https://sourceforge.net/tracker/?func=detail&aid=3085413&group_id=70362&atid=527529
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sub os_ver {
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my $self = shift;
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return if $self->model and $self->model =~ m/GS\d/i;
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return $self->ng_osver();
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}
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sub serial {
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my $self = shift;
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return if $self->model and $self->model =~ m/GS\d/i;
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return $self->ng_serial();
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}
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# Use LLDP
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sub hasCDP {
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my $netgear = shift;
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return $netgear->hasLLDP();
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}
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sub c_ip {
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my $netgear = shift;
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my $partial = shift;
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return $netgear->lldp_ip($partial);
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}
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sub c_if {
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my $netgear = shift;
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my $partial = shift;
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return $netgear->lldp_if($partial);
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}
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sub c_port {
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my $netgear = shift;
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my $partial = shift;
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return $netgear->lldp_port($partial);
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}
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sub c_id {
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my $netgear = shift;
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my $partial = shift;
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return $netgear->lldp_id($partial);
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}
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sub c_platform {
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my $netgear = shift;
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my $partial = shift;
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return $netgear->lldp_rem_sysdesc($partial);
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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::Netgear - SNMP Interface to Netgear switches
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=head1 AUTHOR
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Bill Fenner and Zoltan Erszenyi,
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Hacked in LLDP support from Baystack.pm by
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Nic Bernstein <nic@onlight.com>
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $netgear = 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 = $netgear->class();
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print "SNMP::Info determined this device to fall under subclass : $class\n";
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=head1 DESCRIPTION
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Provides abstraction to the configuration information obtainable from a
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Netgear device through SNMP. See inherited classes' documentation for
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inherited methods.
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer2
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=item SNMP::Info::LLDP
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=back
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=head2 Required MIBs
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=over
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=item Inherited Classes' MIBs
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MIBs listed in L<SNMP::Info::Layer2/"Required MIBs"> and its inherited
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classes.
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See L<SNMP::Info::LLDP/"Required MIBs"> for its 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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=head2 Overrides
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=over
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=item $netgear->vendor()
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Returns 'netgear'
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=item $netgear->os()
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Returns 'netgear'
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=item $netgear->model()
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Returns description()
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=item $netgear->os_ver()
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Returns OS Version.
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=item $netgear->serial()
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Returns Serial Number.
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=back
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=head2 Global Methods imported from SNMP::Info::Layer2
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See documentation in L<SNMP::Info::Layer2/"GLOBALS"> for details.
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=head2 Globals imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP/"GLOBALS"> for details.
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=head1 TABLE METHODS
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These are methods that return tables of information in the form of
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a reference to a hash.
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=head2 Overrides
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=over
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=item $netgear->fw_mac()
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Returns reference to hash of forwarding table MAC Addresses.
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Some devices don't implement the C<BRIDGE-MIB> forwarding table, so we use
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the C<Q-BRIDGE-MIB> forwarding table. Fall back to the C<BRIDGE-MIB> if
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C<Q-BRIDGE-MIB> doesn't return anything.
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=item $netgear->fw_port()
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Returns reference to hash of forwarding table entries port interface
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identifier (iid)
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Some devices don't implement the C<BRIDGE-MIB> forwarding table, so we use
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the C<Q-BRIDGE-MIB> forwarding table. Fall back to the C<BRIDGE-MIB> if
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C<Q-BRIDGE-MIB> doesn't return anything.
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=back
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=head2 Topology information
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Based upon the software version devices may support Link Layer Discovery
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Protocol (LLDP).
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=over
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=item $netgear->hasCDP()
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Returns true if the device is running LLDP.
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=item $netgear->c_if()
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Returns reference to hash. Key: iid Value: local device port (interfaces)
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=item $netgear->c_ip()
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Returns reference to hash. Key: iid Value: remote IPv4 address
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If multiple entries exist with the same local port, c_if(), with the same IPv4
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address, c_ip(), it may be a duplicate entry.
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If multiple entries exist with the same local port, c_if(), with different
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IPv4 addresses, c_ip(), there is either a non-LLDP device in between two or
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more devices or multiple devices which are not directly connected.
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Use the data from the Layer2 Topology Table below to dig deeper.
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=item $netgear->c_port()
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Returns reference to hash. Key: iid Value: remote port (interfaces)
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=item $netgear->c_id()
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Returns reference to hash. Key: iid Value: string value used to identify the
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chassis component associated with the remote system.
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=item $netgear->c_platform()
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Returns reference to hash. Key: iid Value: Remote Device Type
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=back
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=head2 Table Methods imported from SNMP::Info::Layer2
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See documentation in L<SNMP::Info::Layer2/"TABLE METHODS"> for details.
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=cut
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