001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied. See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 *
019 */
020
021 package org.apache.directory.server.dns.io.encoder;
022
023
024 /**
025 * 3.1.1. Format
026 *
027 * The RDATA portion of the A6 record contains two or three fields.
028 *
029 * +-----------+------------------+-------------------+
030 * |Prefix len.| Address suffix | Prefix name |
031 * | (1 octet) | (0..16 octets) | (0..255 octets) |
032 * +-----------+------------------+-------------------+
033 *
034 * o A prefix length, encoded as an eight-bit unsigned integer with
035 * value between 0 and 128 inclusive.
036 *
037 * o An IPv6 address suffix, encoded in network order (high-order octet
038 * first). There MUST be exactly enough octets in this field to
039 * contain a number of bits equal to 128 minus prefix length, with 0
040 * to 7 leading pad bits to make this field an integral number of
041 * octets. Pad bits, if present, MUST be set to zero when loading a
042 * zone file and ignored (other than for SIG [DNSSEC] verification)
043 * on reception.
044 *
045 * o The name of the prefix, encoded as a domain name. By the rules of
046 * [DNSIS], this name MUST NOT be compressed.
047 *
048 * The domain name component SHALL NOT be present if the prefix length
049 * is zero. The address suffix component SHALL NOT be present if the
050 * prefix length is 128.
051 *
052 * It is SUGGESTED that an A6 record intended for use as a prefix for
053 * other A6 records have all the insignificant trailing bits in its
054 * address suffix field set to zero.
055 *
056 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
057 * @version $Rev: 501160 $, $Date: 2007-01-29 21:41:33 +0200 (Mon, 29 Jan 2007) $
058 */
059 public class A6RecordEncoder
060 {
061 }