/**
* parses the rdata of the Net_DNS2_Packet object
*
* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
*
* @return boolean
* @access protected
*
*/
protected function rrSet(Net_DNS2_Packet &$packet)
{
if ($this->rdlength > 0) {
//
// parse the
//
$offset = $packet->offset;
$this->mname = Net_DNS2_Packet::expand($packet, $offset);
$this->rname = Net_DNS2_Packet::expand($packet, $offset);
//
// get the SOA values
//
$x = unpack('@' . $offset . '/Nserial/Nrefresh/Nretry/Nexpire/Nminimum/', $packet->rdata);
$this->serial = Net_DNS2::expandUint32($x['serial']);
$this->refresh = Net_DNS2::expandUint32($x['refresh']);
$this->retry = Net_DNS2::expandUint32($x['retry']);
$this->expire = Net_DNS2::expandUint32($x['expire']);
$this->minimum = Net_DNS2::expandUint32($x['minimum']);
return true;
}
return false;
}
/**
* parses the rdata of the Net_DNS2_Packet object
*
* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
*
* @return boolean
* @access protected
*
*/
protected function rrSet(Net_DNS2_Packet &$packet)
{
if ($this->rdlength > 0) {
//
// unpack
//
$x = unpack('ntc/Calgorithm/Clabels/Norigttl/Nsigexp/Nsigincep/nkeytag', $this->rdata);
$this->typecovered = Net_DNS2_Lookups::$rr_types_by_id[$x['tc']];
$this->algorithm = $x['algorithm'];
$this->labels = $x['labels'];
$this->origttl = Net_DNS2::expandUint32($x['origttl']);
//
// the dates are in GM time
//
$this->sigexp = gmdate('YmdHis', $x['sigexp']);
$this->sigincep = gmdate('YmdHis', $x['sigincep']);
//
// get the keytag
//
$this->keytag = $x['keytag'];
//
// get teh signers name and signature
//
$offset = $packet->offset + 18;
$sigoffset = $offset;
$this->signname = strtolower(Net_DNS2_Packet::expand($packet, $sigoffset));
$this->signature = base64_encode(substr($this->rdata, 18 + ($sigoffset - $offset)));
return true;
}
return false;
}
/**
* parses the rdata of the Net_DNS2_Packet object
*
* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
*
* @return boolean
* @access protected
*
*/
protected function rrSet(Net_DNS2_Packet &$packet)
{
if ($this->rdlength > 0) {
//
// expand the algorithm
//
$newoffset = $packet->offset;
$this->algorithm = Net_DNS2_Packet::expand($packet, $newoffset);
$offset = $newoffset - $packet->offset;
//
// unpack time, fudge and mac_size
//
$x = unpack('@' . $offset . '/ntime_high/Ntime_low/nfudge/nmac_size', $this->rdata);
$this->time_signed = Net_DNS2::expandUint32($x['time_low']);
$this->fudge = $x['fudge'];
$this->mac_size = $x['mac_size'];
$offset += 10;
//
// copy out the mac
//
if ($this->mac_size > 0) {
$this->mac = substr($this->rdata, $offset, $this->mac_size);
$offset += $this->mac_size;
}
//
// unpack the original id, error, and other_length values
//
$x = unpack('@' . $offset . '/noriginal_id/nerror/nother_length', $this->rdata);
$this->original_id = $x['original_id'];
$this->error = $x['error'];
$this->other_length = $x['other_length'];
//
// the only time there is actually any "other data", is when there's
// a BADTIME error code.
//
// The other length should be 6, and the other data field includes the
// servers current time - per RFC 2845 section 4.5.2
//
if ($this->error == Net_DNS2_Lookups::RCODE_BADTIME) {
if ($this->other_length != 6) {
return false;
}
//
// other data is a 48bit timestamp
//
$x = unpack('nhigh/nlow', substr($this->rdata, $offset + 6, $this->other_length));
$this->other_data = $x['low'];
}
return true;
}
return false;
}
/**
* parses the rdata of the Net_DNS2_Packet object
*
* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
*
* @return boolean
* @access protected
*
*/
protected function rrSet(Net_DNS2_Packet &$packet)
{
if ($this->rdlength > 0) {
//
// expand the algorithm
//
$offset = $packet->offset;
$this->algorithm = Net_DNS2_Packet::expand($packet, $offset);
//
// unpack inception, expiration, mode, error and key size
//
$x = unpack(
'@' . $offset . '/Ninception/Nexpiration/nmode/nerror/nkey_size',
$packet->rdata
);
$this->inception = Net_DNS2::expandUint32($x['inception']);
$this->expiration = Net_DNS2::expandUint32($x['expiration']);
$this->mode = $x['mode'];
$this->error = $x['error'];
$this->key_size = $x['key_size'];
$offset += 14;
//
// if key_size > 0, then copy out the key
//
if ($this->key_size > 0) {
$this->key_data = substr($packet->rdata, $offset, $this->key_size);
$offset += $this->key_size;
}
//
// unpack the other length
//
$x = unpack('@' . $offset . '/nother_size', $packet->rdata);
$this->other_size = $x['other_size'];
$offset += 2;
//
// if other_size > 0, then copy out the data
//
if ($this->other_size > 0) {
$this->other_data = substr(
$packet->rdata, $offset, $this->other_size
);
}
return true;
}
return false;
}
/**
* parses the rdata of the Net_DNS2_Packet object
*
* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
*
* @return boolean
* @access protected
*
*/
protected function rrSet(Net_DNS2_Packet &$packet)
{
if ($this->rdlength > 0) {
//
// unpack the serial and flags values
//
$x = unpack('@' . $packet->offset . '/Nserial/nflags', $packet->rdata);
$this->serial = Net_DNS2::expandUint32($x['serial']);
$this->flags = $x['flags'];
//
// parse out the RR bitmap
//
$this->type_bit_maps = Net_DNS2_BitMap::bitMapToArray(substr($this->rdata, 6));
return true;
}
return false;
}
