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lib/Net/Frame/Layer/RIPng/v1.pm  view on Meta::CPAN

#
# $Id: v1.pm 49 2009-05-31 13:15:34Z VinsWorldcom $
#
package Net::Frame::Layer::RIPng::v1;
use strict; use warnings;

use Net::Frame::Layer qw(:consts :subs);
our @ISA = qw(Net::Frame::Layer Exporter);

our %EXPORT_TAGS = (
   consts => [qw(
      NF_RIPNG_METRIC_INFINITY
   )],
);
our @EXPORT_OK = (
   @{$EXPORT_TAGS{consts}},
);

use constant NF_RIPNG_METRIC_INFINITY    => 16;

our @AS = qw(
   prefix
   routeTag
   prefixLength
   metric
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);

sub new {
   shift->SUPER::new(
      prefix       => '::',
      routeTag     => 0,
      prefixLength => 64,
      metric       => 1,
      @_,
   );
}

sub full {
   shift->SUPER::new(
      prefix       => '::',
      routeTag     => 0,
      prefixLength => 0,
      metric        => NF_RIPNG_METRIC_INFINITY,
      @_,
   );
}

sub getLength { 20 }

sub pack {
   my $self = shift;

   $self->raw($self->SUPER::pack('a16nCC',
      inet6Aton($self->prefix),
      $self->routeTag,
      $self->prefixLength,
      $self->metric
   )) or return;

   return $self->raw;
}

sub unpack {
   my $self = shift;

   my ($prefix, $routeTag, $prefixLength, $metric, $payload) =
      $self->SUPER::unpack('a16nCC a*', $self->raw)
         or return;

   $self->prefix(inet6Ntoa($prefix));
   $self->routeTag($routeTag);
   $self->prefixLength($prefixLength);
   $self->metric($metric);

   $self->payload($payload);

   return $self;
}

sub encapsulate {
   my $self = shift;

   return $self->nextLayer if $self->nextLayer;

   if ($self->payload) {
      return "RIPng::v1";
   }

   NF_LAYER_NONE;
}

sub print {
   my $self = shift;

   my $l = $self->layer;
   my $buf = sprintf
      "$l: prefix:%s\n".
      "$l: routeTag:%d  prefixLength:%d  metric:%d",
         $self->prefix,
         $self->routeTag, $self->prefixLength, $self->metric;

   return $buf;
}

1;

__END__

=head1 NAME

Net::Frame::Layer::RIPng::v1 - Routing Information Protocol ng v1 layer object

=head1 SYNOPSIS

   use Net::Frame::Layer::RIP::v1 qw(:consts);

   my $ripngv1 = Net::Frame::Layer::RIPng::v1->new(
      prefix       => '::',
      routeTag     => 0,
      prefixLength => 64,
      metric       => 1,
   );
   $ripngv1->pack;

   print 'RAW: '.$ripngv1->dump."\n";

   # Read a raw layer
   my $layer = Net::Frame::Layer::RIPng::v1->new(raw => $raw);

   print $layer->print."\n";