#
# $Id: AddressMask.pm 56 2015-01-20 18:55:33Z gomor $
#
package Net::Frame::Layer::ICMPv4::AddressMask;
use strict; use warnings;
use Net::Frame::Layer qw(:consts :subs);
our @ISA = qw(Net::Frame::Layer);
our @AS = qw(
identifier
sequenceNumber
addressMask
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);
sub new {
shift->SUPER::new(
identifier => getRandom16bitsInt(),
sequenceNumber => getRandom16bitsInt(),
addressMask => '0.0.0.0',
@_,
);
}
sub getLength { 8 }
sub pack {
my $self = shift;
$self->raw($self->SUPER::pack('nna4',
$self->identifier, $self->sequenceNumber, inetAton($self->addressMask),
)) or return;
return $self->raw;
}
sub unpack {
my $self = shift;
my ($identifier, $sequenceNumber, $addressMask, $payload) =
$self->SUPER::unpack('nna4 a*', $self->raw)
or return;
$self->identifier($identifier);
$self->sequenceNumber($sequenceNumber);
$self->addressMask(inetNtoa($addressMask));
$self->payload($payload);
return $self;
}
sub print {
my $self = shift;
my $l = $self->layer;
sprintf "$l: identifier:%d sequenceNumber:%d addressMask:%s",
$self->identifier, $self->sequenceNumber, $self->addressMask;
}
1;
__END__
=head1 NAME
Net::Frame::Layer::ICMPv4::AddressMask - ICMPv4 AddressMask type object
=head1 SYNOPSIS
use Net::Frame::Layer::ICMPv4::AddressMask;
my $layer = Net::Frame::Layer::ICMPv4::AddressMask->new(
identifier => getRandom16bitsInt(),
sequenceNumber => getRandom16bitsInt(),
addressMask => '0.0.0.0',
payload => '',
);
$layer->pack;
print 'RAW: '.$layer->dump."\n";
# Read a raw layer
my $layer = Net::Frame::Layer::ICMPv4::AddressMask->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 ICMPv4 AddressMask 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.
=item B<addressMask>
Address mask in dotted format (example: 255.255.255.0).
=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::ICMPv4>, L<Net::Frame::Layer>
=head1 AUTHOR
Patrice E<lt>GomoRE<gt> Auffret
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2006-2015, 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