mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv6PrefixBinarySerializer.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.lispflowmapping.lisp.serializer.address;
   9
  10 import com.google.common.net.InetAddresses;
  11 import java.net.InetAddress;
  12 import java.net.UnknownHostException;
  13 import java.nio.ByteBuffer;
  14 import org.opendaylight.lispflowmapping.lisp.serializer.address.Ipv6Serializer.Length;
  15 import org.opendaylight.lispflowmapping.lisp.serializer.exception.LispSerializationException;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.inet.binary.types.rev160303.Ipv6AddressBinary;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv6PrefixBinaryAfi;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6PrefixBinary;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv6PrefixBinaryBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * Class to (de)serialize IPv6 prefixes from/to byte[] representation.
  33  *
  34  * @author Lorand Jakab
  35  *
  36  */
  37 public final class Ipv6PrefixBinarySerializer extends LispAddressSerializer {
  38
  39     protected static final Logger LOG = LoggerFactory.getLogger(Ipv6PrefixBinarySerializer.class);
  40
  41     private static final Ipv6PrefixBinarySerializer INSTANCE = new Ipv6PrefixBinarySerializer();
  42
  43     // Private constructor prevents instantiation from other classes
  44     private Ipv6PrefixBinarySerializer() {
  45     }
  46
  47     public static Ipv6PrefixBinarySerializer getInstance() {
  48         return INSTANCE;
  49     }
  50
  51     @Override
  52     public int getAddressSize(LispAddress lispAddress) {
  53         // XXX does this need to worry about the mask too?
  54         return Length.IPV6;
  55     }
  56
  57     @Override
  58     public int getAddressSize(SimpleAddress simpleAddress) {
  59         // XXX does this need to worry about the mask too?
  60         return Length.IPV6;
  61     }
  62
  63     @Override
  64     protected short getAfi() {
  65         return (short) AddressFamily.IpV6.getIntValue();
  66     }
  67
  68     @Override
  69     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  70         Ipv6PrefixBinary prefix = (Ipv6PrefixBinary) lispAddress.getAddress();
  71         buffer.put(prefix.getIpv6AddressBinary().getValue());
  72     }
  73
  74     @Override
  75     protected void serializeData(ByteBuffer buffer, IpPrefix prefix) {
  76         buffer.put(InetAddresses.forString(prefix.getIpv6Prefix().getValue()).getAddress());
  77     }
  78
  79     @Override
  80     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  81         byte[] ipBuffer = new byte[16];
  82         buffer.get(ipBuffer);
  83         Ipv6PrefixBinary prefix = new Ipv6PrefixBinaryBuilder()
  84                 .setIpv6AddressBinary(new Ipv6AddressBinary(ipBuffer)).setIpv6MaskLength(ctx.getMaskLen()).build();
  85         EidBuilder eb = new EidBuilder();
  86         eb.setAddressType(Ipv6PrefixBinaryAfi.class);
  87         eb.setVirtualNetworkId(getVni(ctx));
  88         eb.setAddress(prefix);
  89         return eb.build();
  90     }
  91
  92     @Override
  93     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  94         throw new LispSerializationException("RLOCs should not be deserialized into prefixes!");
  95     }
  96
  97     @Override
  98     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  99         byte[] ipBuffer = new byte[16];
 100         InetAddress address = null;
 101         buffer.get(ipBuffer);
 102         try {
 103             address = InetAddress.getByAddress(ipBuffer);
 104         } catch (UnknownHostException e) {
 105             LOG.debug("Unknown host {}", ipBuffer, e);
 106         }
 107         return new SimpleAddress(new IpPrefix(new Ipv6Prefix(address.getHostAddress() + "/" + ctx.getMaskLen())));
 108     }
 109 }