322 lines
7.5 KiB
Perl
322 lines
7.5 KiB
Perl
# SNMP::Info::Layer1 - SNMP Interface to Layer1 Devices
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# Max Baker
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#
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# Copyright (c) 2004 Max Baker changes from version 0.8 and beyond.
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#
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# Copyright (c) 2002,2003 Regents of the University of California
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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 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::Layer1;
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$VERSION = '1.01';
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# $Id$
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use strict;
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use Exporter;
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use SNMP::Info;
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use vars qw/$VERSION $DEBUG %GLOBALS %MIBS %FUNCS %PORTSTAT %MUNGE $INIT/;
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@SNMP::Info::Layer1::ISA = qw/SNMP::Info Exporter/;
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@SNMP::Info::Layer1::EXPORT_OK = qw//;
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%MIBS = ( %SNMP::Info::MIBS,
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'SNMP-REPEATER-MIB' => 'rptrPortGroupIndex'
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);
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%GLOBALS = (
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%SNMP::Info::GLOBALS,
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'ports_managed' => 'ifNumber',
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'rptr_slots' => 'rptrGroupCapacity',
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'slots' => 'rptrGroupCapacity'
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);
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%FUNCS = (
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%SNMP::Info::FUNCS,
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'i_up2' => 'ifOperStatus',
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'i_up_admin2' => 'ifAdminStatus',
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'rptr_ports' => 'rptrGroupPortCapacity',
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'rptr_port' => 'rptrPortIndex',
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'rptr_slot' => 'rptrPortGroupIndex',
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'rptr_up_admin' => 'rptrPortAdminStatus',
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'rptr_up' => 'rptrPortOperStatus',
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);
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%MUNGE = (
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# Inherit all the built in munging
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%SNMP::Info::MUNGE,
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);
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# Method OverRides
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# assuming managed ports aren't in repeater ports?
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sub ports {
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my $l1 = shift;
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my $ports = $l1->ports_managed();
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my $rptr_ports = $l1->rptr_ports();
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foreach my $group (keys %$rptr_ports){
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$ports += $rptr_ports->{$group};
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}
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return $ports;
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}
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# $l1->model() - Looks at sysObjectID which gives the oid of the system
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# name, contained in a propriatry MIB.
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sub model {
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my $l1 = shift;
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my $id = $l1->id();
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my $model = &SNMP::translateObj($id);
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# HP
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$model =~ s/^hpswitch//i;
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# Cisco
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$model =~ s/sysid$//i;
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return $model;
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}
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sub vendor {
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my $l1 = shift;
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my $descr = $l1->description();
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return 'hp' if ($descr =~ /hp/i);
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return 'cisco' if ($descr =~ /(catalyst|cisco|ios)/i);
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return 'allied' if ($descr =~ /allied/i);
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return 'asante' if ($descr =~ /asante/i);
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}
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# By Default we'll use the description field
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sub interfaces {
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my $l1 = shift;
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my $interfaces = $l1->i_index();
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my $rptr_port = $l1->rptr_port();
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foreach my $port (keys %$rptr_port){
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$interfaces->{$port} = $port;
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}
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return $interfaces;
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}
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sub i_up_admin {
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my $l1 = shift;
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my $i_up_admin = $l1->i_up_admin2();
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my $rptr_up_admin = $l1->rptr_up_admin();
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foreach my $key (keys %$rptr_up_admin){
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my $up = $rptr_up_admin->{$key};
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$i_up_admin->{$key} = 'up' if $up =~ /enabled/;
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$i_up_admin->{$key} = 'down' if $up =~ /disabled/;
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}
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return $i_up_admin;
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}
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sub i_up {
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my $l1 = shift;
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my $i_up = $l1->i_up2();
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my $rptr_up = $l1->rptr_up();
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foreach my $key (keys %$rptr_up){
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my $up = $rptr_up->{$key};
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$i_up->{$key} = 'up' if $up =~ /operational/;
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}
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return $i_up;
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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::Layer1 - Perl5 Interface to network devices serving Layer1 only.
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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 $l1 = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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# These arguments are passed directly on to SNMP::Session
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DestHost => 'myswitch',
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Community => 'public',
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Version => 1
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)
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or die "Can't connect to DestHost.\n";
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my $class = $l1->class();
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print "SNMP::Info determined this device to fall under subclass : $class\n";
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# Let's get some basic Port information
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my $interfaces = $l1->interfaces();
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my $i_up = $l1->i_up();
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my $i_speed = $l1->i_speed();
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foreach my $iid (keys %$interfaces) {
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my $port = $interfaces->{$iid};
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my $up = $i_up->{$iid};
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my $speed = $i_speed->{$iid}
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print "Port $port is $up. Port runs at $speed.\n";
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}
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=head1 DESCRIPTION
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This class is usually used as a superclass for more specific device classes listed under
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SNMP::Info::Layer1::* Please read all docs under SNMP::Info first.
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Provides abstraction to the configuration information obtainable from a
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Layer1 device through SNMP. Information is stored in a number of MIBs.
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For speed or debugging purposes you can call the subclass directly, but not after determining
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a more specific class using the method above.
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my $l1 = new SNMP::Info::Layer1(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info
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=back
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=head2 Required MIBs
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=over
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=item SNMP-REPEATER-MIB
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=item Inherited Classes
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MIBs required for SNMP::Info
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=back
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SNMP-REPEATER-MIB needs to be extracted from ftp://ftp.cisco.com/pub/mibs/v1/v1.tar.gz
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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 $l1->ports_managed()
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Gets the number of ports under the interface mib
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(B<ifNumber>)
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=back
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=head2 Overrides
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=over
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=item $l1->vendor()
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Trys to discover the vendor from $l1->model() and $l1->vendor()
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=item $l1->ports()
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Adds the values from rptr_ports() and ports_managed()
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=item $l1->slots()
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Number of 'groups' in the Repeater MIB
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(B<rptrGroupCapacity>)
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=back
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=head2 Globals imported from SNMP::Info
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See documentation in SNMP::Info for details.
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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 $l1->interfaces()
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=item $l1->i_up()
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=item $l1->i_up_admin()
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=back
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=head2 Repeater MIB
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=over
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=item $l1->rptr_ports()
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Number of ports in each group.
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(B<rptrGroupPortCapacity>)
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=item $l1->rptr_port()
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Port number in Group
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(B<rptrPortIndex>)
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=item $l1->rptr_slot()
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Group (slot) Number for given port.
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(B<rptrPortGroupIndex>)
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=item $l1->rptr_up_admin()
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(B<rptrPortAdminStatus>)
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=item $l1->rptr_up()
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(B<rptrPortOperStatus>)
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=back
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=head2 Table Methods imported from SNMP::Info
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See documentation in SNMP::Info for details.
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=cut
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