/usr/share/perl5/Net/Frame/Layer/ICMPv6/DestUnreach.pm is in libnet-frame-layer-icmpv6-perl 1.10-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Contributed by Vince http://www.vinsworld.com/
#
# $Id: DestUnreach.pm,v b9194b248a66 2017/10/06 16:26:50 gomor $
#
package Net::Frame::Layer::ICMPv6::DestUnreach;
use strict; use warnings;
use Net::Frame::Layer qw(:consts);
our @ISA = qw(Net::Frame::Layer);
our @AS = qw(
unused
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);
sub new {
my $self = shift->SUPER::new(
unused => 0,
@_,
);
return $self;
}
sub getLength { 4 }
sub pack {
my $self = shift;
$self->raw($self->SUPER::pack('N', $self->unused))
or return;
return $self->raw;
}
sub unpack {
my $self = shift;
my ($unused, $payload) = $self->SUPER::unpack('N a*', $self->raw)
or return undef;
$self->unused($unused);
$self->payload($payload);
return $self;
}
sub encapsulate {
my $self = shift;
return $self->nextLayer if $self->nextLayer;
if ($self->payload) {
my $pLen = length($self->payload);
if ($pLen < 40) {
$self->payload($self->payload.("\x00" x (40 - $pLen)));
} elsif ($pLen > 1240) {
$self->payload(substr $self->payload, 0, 1240);
}
return 'IPv6';
}
return NF_LAYER_NONE;
}
sub print {
my $self = shift;
my $l = $self->layer;
return sprintf "$l: unused:%d", $self->unused;
}
1;
__END__
=head1 NAME
Net::Frame::Layer::ICMPv6::DestUnreach - ICMPv6 DestUnreach type object
=head1 SYNOPSIS
use Net::Frame::Layer::ICMPv6::DestUnreach;
my $layer = Net::Frame::Layer::ICMPv6::DestUnreach->new(
unused => 0,
payload => '',
);
$layer->pack;
print 'RAW: '.$layer->dump."\n";
# Read a raw layer
my $layer = Net::Frame::Layer::ICMPv6::DestUnreach->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 ICMPv6 DestUnreach object.
See also B<Net::Frame::Layer> for other attributes and methods.
=head1 ATTRIBUTES
=over 4
=item B<unused>
Zero value field.
=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 overridden 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::ICMPv6>, L<Net::Frame::Layer>
=head1 AUTHOR
Patrice E<lt>GomoRE<gt> Auffret
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2006-2017, 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
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