#
# $Id: Lls.pm,v 1.2 2007/03/13 18:19:39 gomor Exp $
#
package Net::Frame::Layer::OSPF::Lls;
use strict;
use warnings;
use Net::Frame::Layer qw(:consts :subs);
our @ISA = qw(Net::Frame::Layer);
our @AS = qw(
checksum
dataLength
rawTlv
);
our @AA = qw(
tlvList
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);
__PACKAGE__->cgBuildAccessorsScalar(\@AA);
use Net::Frame::Layer::OSPF qw(:consts);
sub new {
shift->SUPER::new(
checksum => 0,
dataLength => 0,
tlvList => [],
@_,
);
}
sub getLength {
#my $self = shift;
#my $len = 4;
#if ($self->rawTlv) {
#$len += length($self->rawTlv);
#}
#print "TLV LEN: $len\n";
#$len;
0;
}
sub pack {
my $self = shift;
my $raw = $self->SUPER::pack('nn', $self->checksum, $self->dataLength)
or return undef;
if ($self->rawTlv) {
$raw .= $self->SUPER::pack('a*', $self->rawTlv)
or return undef;
}
$self->raw($raw);
}
sub unpack {
my $self = shift;
my ($checksum, $dataLength, $payload) =
$self->SUPER::unpack('nn a*', $self->raw)
or return undef;
$self->checksum($checksum);
$self->dataLength($dataLength);
# XXX: handle TLV
$self->rawTlv($payload);
#$self->payload($payload);
$self;
}
sub print {
my $self = shift;
my $l = $self->layer;
sprintf
"$l: checksum:0x%04x dataLength:%d\n".
"$l: rawTlv:%s",
$self->checksum,
$self->dataLength,
CORE::unpack('H*', $self->rawTlv),
;
}
1;
__END__
=head1 NAME
Net::Frame::Layer::OSPF::Lls - OSPF Lls type object
=head1 SYNOPSIS
use Net::Frame::Layer::OSPF::Lls;
my $layer = Net::Frame::Layer::OSPF::Lls->new(
identifier => getRandom16bitsInt(),
sequenceNumber => getRandom16bitsInt(),
payload => '',
);
$layer->pack;
print 'RAW: '.$layer->dump."\n";
# Read a raw layer
my $layer = Net::Frame::Layer::OSPF::Lls->new(raw => $raw);
print $layer->print."\n";
print 'PAYLOAD: '.unpack('H*', $layer->payload)."\n"
if $layer->payload;
=head1 DESCRIPTION
This modules implements the encoding and decoding of the OSPF Lls object.
See also B<Net::Frame::Layer> for other attributes and methods.
=head1 ATTRIBUTES
=over 4
=item B<identifier>
Identification number.
=item B<sequenceNumber>
Sequence number.
=back
The following are inherited attributes. See B<Net::Frame::Layer> for more information.
=over 4
=item B<raw>
=item B<payload>
=item B<nextLayer>
=back
=head1 METHODS
=over 4
=item B<new>
=item B<new> (hash)
Object constructor. You can pass attributes that will overwrite default ones. See B<SYNOPSIS> for default values.
=back
The following are inherited methods. Some of them may be overriden in this layer, and some others may not be meaningful in this layer. See B<Net::Frame::Layer> for more information.
=over 4
=item B<layer>
=item B<computeLengths>
=item B<computeChecksums>
=item B<pack>
=item B<unpack>
=item B<encapsulate>
=item B<getLength>
=item B<getPayloadLength>
=item B<print>
=item B<dump>
=back
=head1 CONSTANTS
No constants here.
=head1 SEE ALSO
L<Net::Frame::Layer::OSPF>, L<Net::Frame::Layer>
=head1 AUTHOR
Patrice E<lt>GomoRE<gt> Auffret
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2006-2007, Patrice E<lt>GomoRE<gt> Auffret
You may distribute this module under the terms of the Artistic license.
See LICENSE.Artistic file in the source distribution archive.
=cut