mappingservice/lisp-proto/src/main/java/org/opendaylight/lispflowmapping/lisp/serializer/address/Ipv4PrefixBinarySerializer.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
  12 import java.net.InetAddress;
  13 import java.net.UnknownHostException;
  14 import java.nio.ByteBuffer;
  15
  16 import org.opendaylight.lispflowmapping.lisp.serializer.address.Ipv4Serializer.Length;
  17 import org.opendaylight.lispflowmapping.lisp.serializer.exception.LispSerializationException;
  18 import org.opendaylight.lispflowmapping.lisp.util.MaskUtil;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana.afn.safi.rev130704.AddressFamily;
  20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
  21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Prefix;
  22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.LispAddress;
  23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.lisp.address.types.rev151105.SimpleAddress;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.inet.binary.types.rev160303.Ipv4AddressBinary;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.Ipv4PrefixBinaryAfi;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4PrefixBinary;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.binary.address.types.rev160504.augmented.lisp.address.address.Ipv4PrefixBinaryBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.Eid;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.eid.container.EidBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.lfm.lisp.proto.rev151105.rloc.container.Rloc;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * @author Lorand Jakab
  36  *
  37  */
  38 public final class Ipv4PrefixBinarySerializer extends LispAddressSerializer {
  39
  40     protected static final Logger LOG = LoggerFactory.getLogger(Ipv4PrefixBinarySerializer.class);
  41
  42     private static final Ipv4PrefixBinarySerializer INSTANCE = new Ipv4PrefixBinarySerializer();
  43
  44     // Private constructor prevents instantiation from other classes
  45     private Ipv4PrefixBinarySerializer() {
  46     }
  47
  48     public static Ipv4PrefixBinarySerializer getInstance() {
  49         return INSTANCE;
  50     }
  51
  52     @Override
  53     public int getAddressSize(LispAddress lispAddress) {
  54         return Length.IPV4; // XXX does this need to worry about the mask too?
  55     }
  56
  57     @Override
  58     public int getAddressSize(SimpleAddress simpleAddress) {
  59         return Length.IPV4; // XXX does this need to worry about the mask too?
  60     }
  61
  62     @Override
  63     protected short getAfi() {
  64         return (short) AddressFamily.IpV4.getIntValue();
  65     }
  66
  67     @Override
  68     protected void serializeData(ByteBuffer buffer, LispAddress lispAddress) {
  69         Ipv4PrefixBinary prefix = (Ipv4PrefixBinary) lispAddress.getAddress();
  70         buffer.put(prefix.getIpv4AddressBinary().getValue());
  71     }
  72
  73     @Override
  74     protected void serializeData(ByteBuffer buffer, SimpleAddress address) {
  75         buffer.put(InetAddresses.forString(MaskUtil.getAddressStringForIpPrefix(address.getIpPrefix())).getAddress());
  76     }
  77
  78     @Override
  79     protected Eid deserializeEidData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  80         byte[] ipBuffer = new byte[4];
  81         buffer.get(ipBuffer);
  82         Ipv4PrefixBinary prefix = new Ipv4PrefixBinaryBuilder()
  83                 .setIpv4AddressBinary(new Ipv4AddressBinary(ipBuffer)).setIpv4MaskLength(ctx.getMaskLen()).build();
  84         EidBuilder eb = new EidBuilder();
  85         eb.setAddressType(Ipv4PrefixBinaryAfi.class);
  86         eb.setVirtualNetworkId(getVni(ctx));
  87         eb.setAddress(prefix);
  88         return eb.build();
  89     }
  90
  91     @Override
  92     protected Rloc deserializeRlocData(ByteBuffer buffer) {
  93         throw new LispSerializationException("RLOCs should not be deserialized into prefixes!");
  94     }
  95
  96     @Override
  97     protected SimpleAddress deserializeSimpleAddressData(ByteBuffer buffer, LispAddressSerializerContext ctx) {
  98         byte[] ipBuffer = new byte[4];
  99         InetAddress address = null;
 100         buffer.get(ipBuffer);
 101         try {
 102             address = InetAddress.getByAddress(ipBuffer);
 103         } catch (UnknownHostException e) {
 104             LOG.debug("Unknown host {}", ipBuffer, e);
 105         }
 106         return new SimpleAddress(new IpPrefix(new Ipv4Prefix(address.getHostAddress() + "/" + ctx.getMaskLen())));
 107     }
 108 }