313 lines
7.9 KiB
Perl
313 lines
7.9 KiB
Perl
# SNMP::Info::Layer2::Catalyst
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# $Id$
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#
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# Copyright (c) 2002,2003 Regents of the University of California
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# Copyright (c) 2008 Max Baker changes from version 0.8 and beyond
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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::Catalyst;
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use strict;
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use Exporter;
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use SNMP::Info::CiscoStack;
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use SNMP::Info::Layer2::Cisco;
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@SNMP::Info::Layer2::Catalyst::ISA
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= qw/SNMP::Info::CiscoStack SNMP::Info::Layer2::Cisco Exporter/;
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@SNMP::Info::Layer2::Catalyst::EXPORT_OK = qw//;
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use vars qw/$VERSION %GLOBALS %MIBS %FUNCS %MUNGE/;
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$VERSION = '3.41';
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%MIBS = (
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%SNMP::Info::Layer2::Cisco::MIBS,
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%SNMP::Info::CiscoStack::MIBS,
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);
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%GLOBALS = (
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%SNMP::Info::Layer2::Cisco::GLOBALS,
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%SNMP::Info::CiscoStack::GLOBALS,
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);
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%FUNCS = (
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%SNMP::Info::Layer2::Cisco::FUNCS,
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%SNMP::Info::CiscoStack::FUNCS,
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);
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%MUNGE = (
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%SNMP::Info::Layer2::Cisco::MUNGE,
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%SNMP::Info::CiscoStack::MUNGE,
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);
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# Overidden Methods
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# i_physical sets a hash entry as true if the iid is a physical port
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sub i_physical {
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my $cat = shift;
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my $p_port = $cat->p_port();
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my %i_physical;
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foreach my $port ( keys %$p_port ) {
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my $iid = $p_port->{$port};
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$i_physical{$iid} = 1;
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}
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return \%i_physical;
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}
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sub vendor {
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return 'cisco';
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}
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sub os {
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return 'catalyst';
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}
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sub os_ver {
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my $cat = shift;
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my $os_ver = $cat->SUPER::os_ver();
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return $os_ver if defined $os_ver;
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my $m_swver = $cat->m_swver();
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return unless defined $m_swver;
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# assume .1 entry is the chassis and the sw version we want.
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return $m_swver->{1} if defined $m_swver->{1};
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return;
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}
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# Workaround for incomplete bp_index
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sub bp_index {
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my $cat = shift;
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my $p_index = $cat->p_port();
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my $b_index = $cat->p_oidx();
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my %bp_index;
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foreach my $iid ( keys %$p_index ) {
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my $ifidx = $p_index->{$iid};
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next unless defined $ifidx;
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my $bpidx = $b_index->{$iid} || 0;
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$bp_index{$bpidx} = $ifidx;
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}
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return \%bp_index;
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}
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sub cisco_comm_indexing {
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return 1;
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}
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sub interfaces {
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my $cat = shift;
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my $partial = shift;
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my $i_index = $cat->i_index($partial);
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my $portnames = $cat->p_port() || {};
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my %portmap = reverse %$portnames;
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my %interfaces = ();
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foreach my $iid ( keys %$i_index ) {
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next unless defined $iid;
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my $if = $i_index->{$iid};
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$if =~ s/\./\// if $if;
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my $port = $portmap{$iid};
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$port =~ s/\./\// if $port;
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$interfaces{$iid} = $port || $if;
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}
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return \%interfaces;
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}
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sub i_name {
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my $cat = shift;
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my $partial = shift;
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my $p_port = $cat->p_port() || {};
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my $p_name = $cat->p_name() || {};
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my %i_name;
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foreach my $port ( keys %$p_name ) {
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my $iid = $p_port->{$port};
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next unless defined $iid;
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next if ( defined $partial and $iid !~ /^$partial$/ );
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$i_name{$iid} = $p_name->{$port};
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}
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return \%i_name;
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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::Catalyst - SNMP Interface to Cisco Catalyst devices
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running Catalyst OS.
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=head1 AUTHOR
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Max Baker
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $cat = 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 = $cat->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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SNMP::Info subclass to provide information for Cisco Catalyst series switches
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running CatOS.
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This class includes the Catalyst 2920, 4000, 5000, 6000 (hybrid mode)
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families.
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This subclass is not for all devices that have the name Catalyst. Note that
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some Catalyst switches run IOS, like the 2900 and 3550 families. Cisco
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Catalyst 1900 switches use their own MIB and have a separate subclass. Use
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the method above to have SNMP::Info determine the appropriate subclass before
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using this class directly.
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See SNMP::Info::device_type() for specifics.
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Note: Some older Catalyst switches will only talk SNMP version 1. Some
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newer ones will not return all their data if connected via Version 1.
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For speed or debugging purposes you can call the subclass directly, but not
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after determining a more specific class using the method above.
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my $cat = new SNMP::Info::Layer2::Catalyst(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer2::Cisco
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=item SNMP::Info::CiscoStack
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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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See L<SNMP::Info::Layer2::Cisco/"Required MIBs"> for its own MIB requirements.
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See L<SNMP::Info::CiscoStack/"Required MIBs"> for its own MIB requirements.
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=back
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These MIBs are found in the standard v2 MIBs from Cisco.
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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 $cat->os()
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Returns 'catalyst'
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=item $cat->os_ver()
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Tries to use the value from SNMP::Info::CiscoStats->os_ver() and if it fails
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it grabs $cat->m_swver()->{1} and uses that.
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=item $cat->vendor()
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Returns 'cisco'
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=item $cat->cisco_comm_indexing()
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Returns 1. Use vlan indexing.
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=back
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=head2 Global Methods imported from SNMP::Info::Layer2::Cisco
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See documentation in L<SNMP::Info::Layer2::Cisco/"GLOBALS"> for details.
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=head2 Global Methods imported from SNMP::Info::CiscoStack
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See documentation in L<SNMP::Info::CiscoStack/"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 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 $cat->interfaces()
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Returns the map between SNMP Interface Identifier (iid) and physical port
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name.
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=item $cat->i_name()
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Returns reference to hash of iid to human set name.
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C<portName>
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=item $cat->i_physical()
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Returns a map to IID for ports that are physical ports, not vlans, etc.
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=item $cat->bp_index()
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Returns reference to hash of bridge port table entries map back to interface
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identifier (iid)
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Crosses (C<portCrossIndex>) to (C<portIfIndex>) since some devices seem to
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have problems with F<BRIDGE-MIB>
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=back
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=head2 Table Methods imported from SNMP::Info::Layer2::Cisco
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See documentation in L<SNMP::Info::Layer2::Cisco/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::CiscoStack
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See documentation in L<SNMP::Info::CiscoStack/"TABLE METHODS"> for details.
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=cut
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