trunk/protocol-dns/src/main/java/org/apache/directory/server/dns/io/encoder/A6RecordEncoder.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *  
 *    http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License. 
 *  
 */

package org.apache.directory.server.dns.io.encoder;


/**
 * 3.1.1.  Format
 * 
 *    The RDATA portion of the A6 record contains two or three fields.
 * 
 *            +-----------+------------------+-------------------+
 *            |Prefix len.|  Address suffix  |    Prefix name    |
 *            | (1 octet) |  (0..16 octets)  |  (0..255 octets)  |
 *            +-----------+------------------+-------------------+
 * 
 *    o  A prefix length, encoded as an eight-bit unsigned integer with
 *       value between 0 and 128 inclusive.
 * 
 *    o  An IPv6 address suffix, encoded in network order (high-order octet
 *       first).  There MUST be exactly enough octets in this field to
 *       contain a number of bits equal to 128 minus prefix length, with 0
 *       to 7 leading pad bits to make this field an integral number of
 *       octets.  Pad bits, if present, MUST be set to zero when loading a
 *       zone file and ignored (other than for SIG [DNSSEC] verification)
 *       on reception.
 * 
 *    o  The name of the prefix, encoded as a domain name.  By the rules of
 *       [DNSIS], this name MUST NOT be compressed.
 * 
 *    The domain name component SHALL NOT be present if the prefix length
 *    is zero.  The address suffix component SHALL NOT be present if the
 *    prefix length is 128.
 * 
 *    It is SUGGESTED that an A6 record intended for use as a prefix for
 *    other A6 records have all the insignificant trailing bits in its
 *    address suffix field set to zero.
 * 
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
public class A6RecordEncoder
{
}