233 lines
6.0 KiB
Perl
233 lines
6.0 KiB
Perl
# SNMP::Info::Layer3::CiscoFWSM
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# $Id$
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#
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# Copyright (c) 2010 Brian De Wolf
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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::CiscoFWSM;
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use strict;
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use warnings;
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use Exporter;
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use SNMP::Info::CiscoStats;
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use SNMP::Info::Layer3;
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@SNMP::Info::Layer3::CiscoFWSM::ISA = qw/SNMP::Info::CiscoStats
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SNMP::Info::Layer3
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Exporter/;
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@SNMP::Info::Layer3::CiscoFWSM::EXPORT_OK = qw//;
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use vars qw/$VERSION %GLOBALS %MIBS %FUNCS %MUNGE/;
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$VERSION = '3.27';
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%MIBS = ( %SNMP::Info::Layer3::MIBS, %SNMP::Info::CiscoStats::MIBS, );
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%GLOBALS
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= ( %SNMP::Info::Layer3::GLOBALS, %SNMP::Info::CiscoStats::GLOBALS, );
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%FUNCS = (
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%SNMP::Info::Layer3::FUNCS,
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%SNMP::Info::CiscoStats::FUNCS,
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);
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%MUNGE = ( %SNMP::Info::Layer3::MUNGE, %SNMP::Info::CiscoStats::MUNGE, );
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# For FWSMs, the ipNetToPhysicalPhysAddress table appears to be of the form:
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# $ifindex.$inetaddresstype.$proto.$ip_address -> $mac_address
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#
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# Using the output of ipNetToPhysicalPhysAddress, we can emulate the other
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# functions.
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#
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# This doesn't really line up to what at_* return, so we munge it
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sub at_paddr {
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my ($fwsm) = shift;
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my ($partial) = shift;
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my $paddrs = $fwsm->n2p_paddr($partial);
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my $n_paddrs = {};
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foreach my $key ( keys %$paddrs ) {
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my $paddr = $paddrs->{$key};
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my @parts = split /\./, $key;
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my ( $ifindex, $addrtype, $proto ) = splice @parts, 0, 3;
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my $ip = join ".", @parts;
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next if ( $proto != 4 ); # at_paddr doesn't support non-IPv4
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$n_paddrs->{"$ifindex.$ip"} = $paddr;
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}
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return $n_paddrs;
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}
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sub at_netaddr {
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my ($fwsm) = shift;
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my ($partial) = shift;
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my $paddrs = $fwsm->n2p_paddr($partial);
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my $netaddrs = {};
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foreach my $key ( keys %$paddrs ) {
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my $paddr = $paddrs->{$key};
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my @parts = split /\./, $key;
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my ( $ifindex, $addrtype, $proto ) = splice @parts, 0, 3;
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my $ip = join ".", @parts;
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next if ( $proto != 4 ); # at_netaddr doesn't support non-IPv4
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$netaddrs->{"$ifindex.$ip"} = $ip;
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}
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return $netaddrs;
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}
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sub at_ifaddr {
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my ($fwsm) = shift;
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my ($partial) = shift;
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my $paddrs = $fwsm->n2p_paddr($partial);
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my $ifaddrs = {};
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foreach my $key ( keys %$paddrs ) {
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my $paddr = $paddrs->{$key};
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my @parts = split /\./, $key;
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my ( $ifindex, $addrtype, $proto ) = splice @parts, 0, 3;
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my $ip = join ".", @parts;
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next if ( $proto != 4 ); # at_ifaddr doesn't support non-IPv4
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$ifaddrs->{"$ifindex.$ip"} = $ip;
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}
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return $ifaddrs;
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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::CiscoFWSM - SNMP Interface to Firewall Services Modules
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for features not covered elsewhere.
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=head1 AUTHOR
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Brian De Wolf
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=head1 SYNOPSIS
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# Let SNMP::Info determine the correct subclass for you.
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my $fwsm = new SNMP::Info(
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AutoSpecify => 1,
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Debug => 1,
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# These arguments are passed directly to SNMP::Session
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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 = $fwsm->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 Cisco Firewall Services Modules
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=head2 Inherited Classes
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=over
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=item SNMP::Info::CiscoStats
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=item SNMP::Info::Layer3
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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::CiscoStats/"Required MIBs"> for its own MIB requirements.
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See L<SNMP::Info::Layer3/"Required MIBs"> for its own MIB requirements.
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=back
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=head1 GLOBALS
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=head2 Globals imported from SNMP::Info::CiscoStats
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See documentation in L<SNMP::Info::CiscoStats/"GLOBALS"> for details.
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=head2 Global Methods imported from SNMP::Info::Layer3
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See documentation in L<SNMP::Info::Layer3/"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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=back
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=head2 Overrides
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=over
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=item $fwsm->at_paddr()
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This function derives the at_paddr information from the n2p_paddr() table as
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the MIB to provide that information isn't supported on FWSM.
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=item $fwsm->at_netaddr()
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This function derives the at_netaddr information from the n2p_paddr() table as
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the MIB to provide that information isn't supported on FWSM.
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=item $fwsm->at_ifaddr()
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This function derives the at_ifaddr information from the n2p_paddr() table as
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the MIB to provide that information isn't supported on FWSM.
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=back
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=head2 Table Methods imported from SNMP::Info::CiscoStats
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See documentation in L<SNMP::Info::CiscoStats/"TABLE METHODS"> for details.
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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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=cut
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