mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv6PrefixSerializer.java

   1 /*
   2  * Copyright (c) 2015 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.lispflowmapping.lisp.util.MaskUtil;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.Ipv6PrefixAfi;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6Prefix;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.lisp.address.address.Ipv6PrefixBuilder;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * Class to (de)serialize IPv6 prefixes from/to String representation.
  32  *
  33  * @author Lorand Jakab
  34  */
  35 public final class Ipv6PrefixSerializer extends LispAddressSerializer {
  36
  37     protected static final Logger LOG = LoggerFactory.getLogger(Ipv6PrefixSerializer.class);
  38
  39     private static final Ipv6PrefixSerializer INSTANCE = new Ipv6PrefixSerializer();
  40
  41     // Private constructor prevents instantiation from other classes
  42     private Ipv6PrefixSerializer() {
  43     }
  44
  45     public static Ipv6PrefixSerializer getInstance() {
  46         return INSTANCE;
  47     }
  48
  49     @Override
  50     public int getAddressSize(LispAddress lispAddress) {
  51         // XXX does this need to worry about the mask too?
  52         return Length.IPV6;
  53     }
  54
  55     @Override
  56     public int getAddressSize(SimpleAddress simpleAddress) {
  57         // XXX does this need to worry about the mask too?
  58         return Length.IPV6;
  59     }
  60
  61     @Override
  62     protected short getAfi() {
  63         return (short) AddressFamily.IpV6.getIntValue();
  64     }
  65
  66     @Override
  67     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  68         Ipv6Prefix prefix = (Ipv6Prefix) lispAddress.getAddress();
  69         String address = MaskUtil.getAddressStringForIpv6Prefix(prefix);
  70         buffer.put(InetAddresses.forString(address).getAddress());
  71     }
  72
  73     @Override
  74     protected void serializeData(ByteBuffer buffer, IpPrefix prefix) {
  75         buffer.put(InetAddresses.forString(prefix.getIpv6Prefix().getValue()).getAddress());
  76     }
  77
  78     @Override
  79     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  80         buffer.put(InetAddresses.forString(MaskUtil.getAddressStringForIpPrefix(address.getIpPrefix())).getAddress());
  81     }
  82
  83     @Override
  84     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  85         EidBuilder eb = new EidBuilder();
  86         eb.setAddressType(Ipv6PrefixAfi.class);
  87         eb.setVirtualNetworkId(getVni(ctx));
  88         eb.setAddress(new Ipv6PrefixBuilder().setIpv6Prefix(deserializeData(buffer, ctx)).build());
  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         return new SimpleAddress(new IpPrefix(deserializeData(buffer, ctx)));
 100     }
 101
 102     private static org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix
 103             deserializeData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
 104         byte[] ipBuffer = new byte[16];
 105         InetAddress address = null;
 106         buffer.get(ipBuffer);
 107         try {
 108             address = InetAddress.getByAddress(ipBuffer);
 109         } catch (UnknownHostException e) {
 110             LOG.debug("Unknown host {}", ipBuffer, e);
 111         }
 112         return new org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix(
 113                 address.getHostAddress() + "/" + ctx.getMaskLen());
 114     }
 115 }