Net-Frame-Layer-ICMPv6-MLD

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lib/Net/Frame/Layer/ICMPv6/MLD.pm  view on Meta::CPAN

}

sub getLength { 20 }

sub pack {
   my $self = shift;

   my $raw = $self->SUPER::pack('nna*',
         $self->maxResp,
         $self->reserved,
         inet6Aton($self->groupAddress)
      ) or return;

   return $self->raw($raw);
}

sub unpack {
   my $self = shift;

   my ($maxResp, $reserved, $group, $payload) =
      $self->SUPER::unpack('nna16 a*', $self->raw)
         or return;

   $self->maxResp($maxResp);
   $self->reserved($reserved);
   $self->groupAddress(inet6Ntoa($group));

   $self->payload($payload);

   return $self;
}

sub encapsulate {
   my $self = shift;

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

lib/Net/Frame/Layer/ICMPv6/MLD/Query.pm  view on Meta::CPAN

   my $qrv    = Bit::Vector->new_Dec(3, $self->qrv);
   my $bvlist = $resv->Concat_List($sFlag, $qrv);

   my $raw = $self->SUPER::pack('CCn',
      $bvlist->to_Dec,
      $self->qqic,
      $self->numSources
   ) or return;

   for ($self->sourceAddress) {
      $raw .= inet6Aton($_);
   }

   return $self->raw($raw);
}

sub unpack {
   my $self = shift;

   my ($bv, $qqic, $numSources, $payload) =
      $self->SUPER::unpack('CCn a*', $self->raw)

lib/Net/Frame/Layer/ICMPv6/MLD/Query.pm  view on Meta::CPAN

   $self->sFlag ($bvlist->Chunk_Read(1, 3));
   $self->qrv   ($bvlist->Chunk_Read(3, 0));

   $self->qqic($qqic);
   $self->numSources($numSources);

   my @sourceAddress = ();
   for my $num (0..$numSources-1) {
      if (defined($payload) && (length($payload) >= 16)) {
         my $addr = unpack 'a16', $payload;
         push @sourceAddress, inet6Ntoa($addr);
         $payload = substr $payload, 16;
      }
   }
   $self->sourceAddress(\@sourceAddress);

   $self->payload($payload);

   return $self;
}

lib/Net/Frame/Layer/ICMPv6/MLD/Report/Record.pm  view on Meta::CPAN

   return $len;
}

sub pack {
   my $self = shift;

   my $raw = $self->SUPER::pack('CCna16',
      $self->type,
      $self->auxDataLen,
      $self->numSources,
      inet6Aton($self->multicastAddress),
   ) or return;

   for ($self->sourceAddress) {
      $raw .= inet6Aton($_);
   }

   if ($self->auxData ne "") {
      $raw .= $self->SUPER::pack('a*',
         $self->auxData,
      ) or return;
   }

   return $self->raw($raw);
}

lib/Net/Frame/Layer/ICMPv6/MLD/Report/Record.pm  view on Meta::CPAN

sub unpack {
   my $self = shift;

   my ($type, $auxDataLen, $numSources, $multicastAddress, $payload) =
      $self->SUPER::unpack('CCna16 a*', $self->raw)
         or return;

   $self->type($type);
   $self->auxDataLen($auxDataLen);
   $self->numSources($numSources);
   $self->multicastAddress(inet6Ntoa($multicastAddress));

   my @sourceAddress = ();
   for my $num (0..$numSources-1) {
      if (defined($payload) && (length($payload) >= 16)) {
         my $addr = unpack 'a16', $payload;
         push @sourceAddress, inet6Ntoa($addr);
         $payload = substr $payload, 16;
      }
   }
   $self->sourceAddress(\@sourceAddress);
   $self->auxData("");

   # auxDataLen is length in 32-bit words so extra math (/4, *4)
   if (($self->auxDataLen > 0) && defined($payload) && ((length($payload)/4) >= $self->auxDataLen)) {
      my $auxData = substr $payload, 0, $self->auxDataLen*4;
      $self->auxData($auxData);