465 lines
10 KiB
Perl
465 lines
10 KiB
Perl
# SNMP::Info::Layer3::Juniper
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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::Layer3::Juniper;
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use strict;
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use Exporter;
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use SNMP::Info::Layer3;
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use SNMP::Info::LLDP;
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@SNMP::Info::Layer3::Juniper::ISA = qw/SNMP::Info::Layer3 SNMP::Info::LLDP Exporter/;
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@SNMP::Info::Layer3::Juniper::EXPORT_OK = qw//;
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use vars qw/$VERSION $DEBUG %GLOBALS %MIBS %FUNCS %MUNGE/;
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$VERSION = '2.07';
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%MIBS = (
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%SNMP::Info::Layer3::MIBS,
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%SNMP::Info::LLDP::MIBS,
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'JUNIPER-CHASSIS-DEFINES-MIB' => 'jnxChassisDefines',
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'JUNIPER-MIB' => 'jnxBoxAnatomy',
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'JUNIPER-VLAN-MIB' => 'jnxVlanMIBObjects',
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);
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%GLOBALS = ( %SNMP::Info::Layer3::GLOBALS,
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%SNMP::Info::LLDP::GLOBALS,
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'serial' => 'jnxBoxSerialNo.0', );
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%FUNCS = ( %SNMP::Info::Layer3::FUNCS,
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%SNMP::Info::LLDP::FUNCS,
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# JUNIPER-VLAN-MIB::jnxExVlanTable
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'v_index' => 'jnxExVlanTag',
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'v_type' => 'jnxExVlanType',
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'v_name' => 'jnxExVlanName',
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# JUNIPER-VLAN-MIB::jnxExVlanPortGroupTable
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'i_trunk' => 'jnxExVlanPortAccessMode',
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);
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%MUNGE = ( %SNMP::Info::Layer3::MUNGE,
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%SNMP::Info::LLDP::MUNGE,
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);
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sub vendor {
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return 'juniper';
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}
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sub os {
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return 'junos';
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}
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sub os_ver {
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my $juniper = shift;
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my $descr = $juniper->description();
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return unless defined $descr;
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if ( $descr =~ m/kernel JUNOS (\S+)/ ) {
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return $1;
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}
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return;
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}
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sub model {
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my $l3 = shift;
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my $id = $l3->id();
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unless ( defined $id ) {
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print
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" SNMP::Info::Layer3::Juniper::model() - Device does not support sysObjectID\n"
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if $l3->debug();
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return;
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}
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my $model = &SNMP::translateObj($id);
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return $id unless defined $model;
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$model =~ s/^jnxProductName//i;
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return $model;
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}
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# Override the fancy Layer3.pm serial function
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sub serial {
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my $juniper = shift;
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return $juniper->orig_serial();
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}
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# 'i_trunk' => 'jnxExVlanPortAccessMode',
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sub i_trunk {
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my $juniper = shift;
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my $partial = shift;
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my $access = $juniper->jnxExVlanPortAccessMode($partial);
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my %i_trunk;
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foreach (keys %$access)
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{
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my $old_key = $_;
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m/^\d+\.(\d+)$/o;
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my $new_key = $1;
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$i_trunk{$new_key} = $access->{$old_key};
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}
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return \%i_trunk;
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}
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# 'v_type' => 'jnxExVlanType',
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sub v_type {
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my $juniper = shift;
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my $partial = shift;
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my $v_type = $juniper->jnxExVlanType($partial);
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return $v_type;
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}
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# 'v_index' => 'jnxExVlanTag',
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sub v_index {
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my ($juniper) = shift;
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my ($partial) = shift;
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my ($v_index) = $juniper->jnxExVlanTag($partial);
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return $v_index;
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}
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sub i_vlan {
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my $juniper = shift;
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my $partial = shift;
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my $index = $juniper->bp_index();
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# If given a partial it will be an ifIndex, we need to use dot1dBasePort
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if ($partial) {
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my %r_index = reverse %$index;
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$partial = $r_index{$partial};
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}
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my $v_index = $juniper->jnxExVlanTag();
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my $i_pvid = $juniper->qb_i_vlan($partial) || {};
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my $i_vlan = {};
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foreach my $bport ( keys %$i_pvid ) {
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my $q_vlan = $i_pvid->{$bport};
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my $vlan = $v_index->{$q_vlan};
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my $ifindex = $index->{$bport};
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unless ( defined $ifindex ) {
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print " Port $bport has no bp_index mapping. Skipping.\n"
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if $DEBUG;
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next;
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}
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$i_vlan->{$ifindex} = $vlan;
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}
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return $i_vlan;
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}
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sub i_vlan_membership {
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my $juniper = shift;
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my $partial = shift;
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my $index = $juniper->bp_index();
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my ($v_index) = $juniper->jnxExVlanTag($partial);
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my $v_ports = $juniper->qb_v_egress() || {};
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my $i_vlan_membership = {};
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foreach my $idx ( sort keys %$v_ports ) {
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next unless ( defined $v_ports->{$idx} );
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my $portlist = $v_ports->{$idx}; # is an array reference
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my $ret = [];
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my $vlan_ndx = $idx;
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# Convert portlist bit array to bp_index array
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for ( my $i = 0; $i <= $#$portlist; $i++ ) {
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push( @{$ret}, $i + 1 ) if ( @$portlist[$i] );
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}
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#Create HoA ifIndex -> VLAN array
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foreach my $port ( @{$ret} ) {
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my $ifindex = $index->{$port};
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next unless ( defined($ifindex) ); # shouldn't happen
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next if ( defined $partial and $ifindex !~ /^$partial$/ );
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push ( @{ $i_vlan_membership->{$ifindex} }, $v_index->{$vlan_ndx} );
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}
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}
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return $i_vlan_membership;
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}
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# Use Q-BRIDGE-MIB for bridge forwarding tables
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sub fw_mac {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->qb_fw_mac($partial);
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}
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sub fw_port {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->qb_fw_port($partial);
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}
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# Use LLDP
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sub hasCDP {
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my $juniper = shift;
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return $juniper->hasLLDP();
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}
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sub c_ip {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->lldp_ip($partial);
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}
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sub c_if {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->lldp_if($partial);
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}
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sub c_port {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->lldp_port($partial);
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}
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sub c_id {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->lldp_id($partial);
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}
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sub c_platform {
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my $juniper = shift;
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my $partial = shift;
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return $juniper->lldp_rem_sysdesc($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::Layer3::Juniper - SNMP Interface to L3 Juniper Devices
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=head1 AUTHOR
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Bill Fenner
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $juniper = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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DestHost => 'myrouter',
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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 = $juniper->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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Subclass for Generic Juniper Routers running JUNOS
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer3
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=item SNMP::Info::LLDP
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=back
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=head2 Required MIBs
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JUNIPER-VLAN-MIB dated "200901090000Z" -- Fri Jan 09 00:00:00 2009 UTC or later.
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=over
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=item Inherited Classes' MIBs
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See L<SNMP::Info::Layer3/"Required MIBs"> for its own MIB requirements.
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See L<SNMP::Info::LLDP/"Required MIBs"> for its own 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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=over
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=item $juniper->vendor()
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Returns C<'juniper'>
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=item $juniper->os()
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Returns C<'junos'>
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=item $juniper->os_ver()
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Returns the software version extracted from C<sysDescr>.
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=item $juniper->model()
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Returns the model from C<sysObjectID>, with C<jnxProductName> removed from the
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beginning.
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=item $juniper->serial()
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Returns serial number
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(C<jnxBoxSerialNo.0>)
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=item $juniper->hasCDP()
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Returns whether LLDP is enabled.
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=back
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=head2 Globals imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3/"GLOBALS"> for details.
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=head2 Global Methods 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 a reference
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to a hash.
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=over
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=item $juniper->v_index()
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(C<jnxExVlanTag>)
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=item $juniper->v_name()
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(C<jnxExVlanName>)
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=item $juniper->v_type()
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(C<jnxExVlanType>)
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=item $juniper->i_vlan()
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Returns a mapping between C<ifIndex> and the VLAN tag on interfaces
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whose C<ifType> is propVirtual (53).
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=item $juniper->i_trunk()
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(C<jnxExVlanPortAccessMode>)
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=item $bridge->i_vlan()
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Returns a mapping between C<ifIndex> and the PVID or default VLAN.
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=item $bridge->i_vlan_membership()
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Returns reference to hash of arrays: key = C<ifIndex>, value = array of VLAN
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IDs. These are the VLANs which are members of the egress list for the port.
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=item $juniper->c_id()
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Returns LLDP information.
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=item $juniper->c_if()
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Returns LLDP information.
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=item $juniper->c_ip()
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Returns LLDP information.
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=item $juniper->c_platform()
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Returns LLDP information.
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=item $juniper->c_port()
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Returns LLDP information.
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=back
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=head2 Forwarding Table (C<dot1dTpFdbEntry>)
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=over
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=item $juniper->fw_mac()
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Returns reference to hash of forwarding table MAC Addresses
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(C<dot1dTpFdbAddress>)
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=item $juniper->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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(C<dot1dTpFdbPort>)
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=back
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=head2 Table Methods imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3/"TABLE METHODS"> for details.
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=head2 Table Methods imported from SNMP::Info::LLDP
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See documentation in L<SNMP::Info::LLDP/"TABLE METHODS"> for details.
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=cut
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