549 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
			
		
		
	
	
			549 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Perl
		
	
	
	
	
	
# SNMP::Info::Layer1::S3000
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# $Id$
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#
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# Copyright (c) 2008 Eric Miller
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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::Layer1::S3000;
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use strict;
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use Exporter;
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use SNMP::Info::Layer2;
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@SNMP::Info::Layer1::S3000::ISA       = qw/SNMP::Info::Layer2 Exporter/;
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@SNMP::Info::Layer1::S3000::EXPORT_OK = qw//;
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use vars qw/$VERSION %FUNCS %GLOBALS %MIBS %MUNGE/;
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$VERSION = '2.06';
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%MIBS = (
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    %SNMP::Info::Layer2::MIBS,
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    'SYNOPTICS-ETHERNET-MIB' => 's3EnetPortTable',
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    'SYNOPTICS-COMMON-MIB'   => 's3AgentType',
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);
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%GLOBALS = (
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    %SNMP::Info::Layer2::GLOBALS,
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    # From SYNOPTICS-COMMON-MIB
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    'os_bin'          => 's3AgentFwVer',
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    's3000_major_ver' => 's3AgentSwMajorVer',
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    's3000_minor_ver' => 's3AgentSwMinorVer',
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    's3000_maint_ver' => 's3AgentSwMaintVer',
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);
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%FUNCS = (
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    %SNMP::Info::Layer2::FUNCS,
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    # SYNOPTICS-ETHERNET-MIB::s3EnetPortTable
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    's3000_pb_index' => 's3EnetPortBoardIndex',
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    's3000_pp_index' => 's3EnetPortIndex',
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    's3000_up_admin' => 's3EnetPortPartStatus',
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    's3000_up'       => 's3EnetPortLinkStatus',
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    # SYNOPTICS-ETHERNET-MIB::s3EnetShowNodesTable
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    's3000_nb_index' => 's3EnetShowNodesSlotIndex',
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    's3000_np_index' => 's3EnetShowNodesPortIndex',
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    'fw_mac'         => 's3EnetShowNodesMacAddress',
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    # SYNOPTICS-ETHERNET-MIB::s3EnetTopNmmTable
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    's3000_topo_port' => 's3EnetTopNmmPort',
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    's3000_topo_mac'  => 's3EnetTopNmmMacAddr',
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);
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%MUNGE = (
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    %SNMP::Info::Layer2::MUNGE, 's3000_topo_mac' => \&SNMP::Info::munge_mac
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);
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sub layers {
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    return '00000011';
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}
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sub os {
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    return 'synoptics';
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}
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sub vendor {
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    return 'nortel';
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}
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sub model {
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    my $s3000 = shift;
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    my $id    = $s3000->id();
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    return unless defined $id;
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    my $model = &SNMP::translateObj($id);
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    return $id unless defined $model;
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    $model =~ s/^s3reg-//i;
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    return $1 if ( $model =~ /((\d+){3}[\dX])/ );
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    return $model;
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}
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sub os_ver {
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    my $s3000     = shift;
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    my $major_ver = $s3000->s3000_major_ver() || 0;
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    my $minor_ver = $s3000->s3000_minor_ver() || 0;
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    my $maint_ver = $s3000->s3000_maint_ver() || 0;
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    my $ver = "$major_ver.$minor_ver.$maint_ver";
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    return $ver;
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}
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sub mac {
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    my $s3000     = shift;
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    my $topo_port = $s3000->s3000_topo_port();
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    my $topo_mac  = $s3000->s3000_topo_mac();
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    foreach my $entry ( keys %$topo_port ) {
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        my $port = $topo_port->{$entry};
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        next unless $port == 0;
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        my $mac = $topo_mac->{$entry};
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        return $mac;
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    }
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    # Topology turned off, not supported.
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    return;
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}
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# Hubs do not support ifMIB requirements for get MAC
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# and port status
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sub i_index {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $b_index = $s3000->s3000_pb_index($partial) || {};
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    my $p_index = $s3000->s3000_pp_index($partial) || {};
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    my %i_index;
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    foreach my $iid ( keys %$b_index ) {
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        my $board = $b_index->{$iid};
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        next unless defined $board;
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        my $port = $p_index->{$iid} || 0;
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        # We need to make up an index for multiple board instances.
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        my $index = ( $board * 256 ) + $port;
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        $i_index{$iid} = $index;
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    }
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    return \%i_index;
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}
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# Partials don't really help in this class, but implemented
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# for consistency
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sub interfaces {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $i_index = $s3000->i_index() || {};
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    my %if;
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    foreach my $iid ( keys %$i_index ) {
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        my $index = $i_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        # Index numbers are deterministic slot * 256 + port - see i_index()
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        my $port = $index % 256;
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        my $slot = int( $index / 256 );
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        my $slotport = "$slot.$port";
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        $if{$index} = $slotport;
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    }
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    return \%if;
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}
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sub i_duplex {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $port_index = $s3000->i_index() || {};
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    my %i_duplex;
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    foreach my $iid ( keys %$port_index ) {
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        my $index = $port_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        # Hubs only function half duplex
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        my $duplex = 'half';
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        $i_duplex{$index} = $duplex;
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    }
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    return \%i_duplex;
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}
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sub i_duplex_admin {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $port_index = $s3000->i_index() || {};
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    my %i_duplex_admin;
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    foreach my $iid ( keys %$port_index ) {
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        my $index = $port_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        # Hubs only function half duplex
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        my $duplex = 'half';
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        $i_duplex_admin{$index} = $duplex;
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    }
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    return \%i_duplex_admin;
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}
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sub i_speed {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $port_index = $s3000->i_index() || {};
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    my %i_speed;
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    foreach my $iid ( keys %$port_index ) {
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        my $index = $port_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        # These hubs only support 10 Mbs
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        my $speed = '10000000';
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        $i_speed{$index} = $speed;
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    }
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    return \%i_speed;
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}
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sub i_up {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $port_index = $s3000->i_index()  || {};
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    my $link_stat  = $s3000->s3000_up() || {};
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    my %i_up;
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    foreach my $iid ( keys %$port_index ) {
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        my $index = $port_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        my $link_stat = $link_stat->{$iid};
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        next unless defined $link_stat;
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        $link_stat = 'up'   if $link_stat =~ /on/i;
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        $link_stat = 'down' if $link_stat =~ /off/i;
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        $i_up{$index} = $link_stat;
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    }
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    return \%i_up;
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}
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sub i_up_admin {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $i_index   = $s3000->i_index()        || {};
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    my $link_stat = $s3000->s3000_up_admin() || {};
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    my %i_up_admin;
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    foreach my $iid ( keys %$i_index ) {
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        my $index = $i_index->{$iid};
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        next unless defined $index;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        my $link_stat = $link_stat->{$iid};
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        next unless defined $link_stat;
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        $i_up_admin{$index} = $link_stat;
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    }
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    return \%i_up_admin;
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}
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sub set_i_up_admin {
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    # map setting to those the hub will understand
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    my %setting = qw/up 2 down 3/;
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    my $s3000 = shift;
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    my ( $setting, $iid ) = @_;
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    my $i_index = $s3000->i_index() || {};
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    my %reverse_i_index = reverse %$i_index;
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    $setting = lc($setting);
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    return 0 unless defined $setting{$setting};
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    $iid = $reverse_i_index{$iid};
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    return $s3000->set_s3000_up_admin( $setting{$setting}, $iid );
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}
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# Hubs do not support the standard Bridge MIB
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sub bp_index {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $b_index = $s3000->s3000_nb_index() || {};
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    my $p_index = $s3000->s3000_np_index() || {};
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    my $model   = $s3000->model();
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    my %bp_index;
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    foreach my $iid ( keys %$b_index ) {
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        my $board = $b_index->{$iid};
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        next unless defined $board;
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        my $port = $p_index->{$iid} || 0;
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        my $index = ( $board * 256 ) + $port;
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        next if ( defined $partial and $index !~ /^$partial$/ );
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        $bp_index{$index} = $index;
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    }
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    return \%bp_index;
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}
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sub fw_port {
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    my $s3000   = shift;
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    my $partial = shift;
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    my $b_index = $s3000->s3000_nb_index($partial) || {};
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    my $p_index = $s3000->s3000_np_index($partial) || {};
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    my $model   = $s3000->model();
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    my %fw_port;
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    foreach my $iid ( keys %$b_index ) {
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        my $board = $b_index->{$iid};
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        next unless defined $board;
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        my $port = $p_index->{$iid} || 0;
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        my $index = ( $board * 256 ) + $port;
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        $fw_port{$iid} = $index;
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    }
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    return \%fw_port;
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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::S3000 - SNMP Interface to Synoptics / Nortel Hubs
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=head1 AUTHOR
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Eric Miller
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=head1 SYNOPSIS
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    #Let SNMP::Info determine the correct subclass for you.
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    my $s3000 = 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 = $s3000->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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Bay hub device through SNMP.  Also provides device MAC to port mapping through
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the proprietary MIB.
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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 $s3000 = new SNMP::Info::Layer1::S3000(...);
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=head2 Inherited Classes
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=over
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=item SNMP::Info::Layer2
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=back
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=head2 Required MIBs
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=over
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=item F<SYNOPTICS-COMMON-MIB>
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=item F<SYNOPTICS-ETHERNET-MIB>
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=back
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=head2 Inherited MIBs
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See L<SNMP::Info::Layer2/"Required MIBs"> for its MIB requirements.
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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 $s3000->vendor()
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Returns 'nortel'
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=item $s3000->os()
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Returns 'synoptics'
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=item $s3000->model()
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Cross references $s3000->id() to the F<SYNOPTICS-MIB> and returns
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the results.
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Removes C<sreg-> from the model name and returns only the numeric model
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identifier.
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=item $stack->os_ver()
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Returns the software version specified as major.minor.maint.
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(C<s3AgentSwMajorVer>).(C<s3AgentSwMinorVer>).(C<s3AgentSwMaintVer>)
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=item $stack->os_bin()
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Returns the firmware version. (C<s3AgentFwVer>)
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=item $s3000->mac()
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Returns MAC of the advertised IP address of the device. 
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=back
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=head2 Overrides
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=over
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=item $s3000->layers()
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Returns 00000011.  Class emulates Layer 2 functionality through proprietary
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MIBs.
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=back
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=head2 Globals imported from SNMP::Info::Layer2
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See L<SNMP::Info::Layer2/"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 $s3000->i_index()
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Returns reference to map of IIDs to Interface index. 
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Since hubs do not support C<ifIndex>, the interface index is created using the
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formula (board * 256 + port).  This is required to support devices with more
 | 
						|
than one module.
 | 
						|
 | 
						|
=item $s3000->interfaces()
 | 
						|
 | 
						|
Returns reference to map of IIDs to physical ports. 
 | 
						|
 | 
						|
=item $s3000->i_duplex()
 | 
						|
 | 
						|
Returns half, hubs do not support full duplex. 
 | 
						|
 | 
						|
=item $s3000->i_duplex_admin()
 | 
						|
 | 
						|
Returns half, hubs do not support full duplex.
 | 
						|
 | 
						|
=item $s3000->i_speed()
 | 
						|
 | 
						|
Returns 10000000.  The hubs only support 10 Mbs Ethernet.
 | 
						|
 | 
						|
=item $s3000->i_up()
 | 
						|
 | 
						|
Returns (C<s3EnetPortLinkStatus>) for each port.  Translates on/off to
 | 
						|
up/down.
 | 
						|
 | 
						|
=item $s3000->i_up_admin()
 | 
						|
 | 
						|
Returns (C<s3EnetPortPartStatus>) for each port.
 | 
						|
 | 
						|
=item $s3000->set_i_up_admin(state, ifIndex)
 | 
						|
 | 
						|
Sets port state, must be supplied with state and port C<ifIndex>
 | 
						|
 | 
						|
State choices are 'up' or 'down'
 | 
						|
 | 
						|
Example:
 | 
						|
  my %if_map = reverse %{$s3000->interfaces()};
 | 
						|
  $s3000->set_i_up_admin('down', $if_map{'1.1'}) 
 | 
						|
      or die "Couldn't change port state. ",$s3000->error(1);
 | 
						|
 | 
						|
=item $s3000->bp_index()
 | 
						|
 | 
						|
Simulates bridge MIB by returning reference to a hash containing the index for
 | 
						|
both the keys and values.
 | 
						|
 | 
						|
=item $s3000->fw_port()
 | 
						|
 | 
						|
Returns reference to map of IIDs of the
 | 
						|
C<SYNOPTICS-ETHERNET-MIB::s3EnetShowNodesTable> to the Interface index.
 | 
						|
 | 
						|
=item $s3000->fw_mac()
 | 
						|
 | 
						|
(C<s3EnetShowNodesMacAddress>)
 | 
						|
 | 
						|
=item $s3000->s3000_topo_port()
 | 
						|
 | 
						|
Returns reference to hash.  Key: Table entry, Value:Port Number
 | 
						|
(interface iid)
 | 
						|
 | 
						|
(C<s3EnetTopNmmPort>)
 | 
						|
 | 
						|
=item $s3000->s3000_topo_mac()
 | 
						|
 | 
						|
(C<s3EnetTopNmmMacAddr>)
 | 
						|
 | 
						|
Returns reference to hash.  Key: Table entry, Value:Remote MAC address
 | 
						|
 | 
						|
=back
 | 
						|
 | 
						|
=head2 Table Methods imported from SNMP::Info::Layer2
 | 
						|
 | 
						|
See L<SNMP::Info::Layer2/"TABLE METHODS"> for details.
 | 
						|
 | 
						|
=cut
 |