2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.protocol.bgp.linkstate.impl.attribute.sr.binding.sid.sub.tlvs;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import io.netty.buffer.ByteBuf;
13 import io.netty.buffer.Unpooled;
14 import org.opendaylight.protocol.bgp.linkstate.spi.BindingSubTlvsParser;
15 import org.opendaylight.protocol.bgp.linkstate.spi.BindingSubTlvsSerializer;
16 import org.opendaylight.protocol.bgp.linkstate.spi.TlvUtil;
17 import org.opendaylight.protocol.util.BitArray;
18 import org.opendaylight.protocol.util.Ipv6Util;
19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6AddressNoZone;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev180329.ProtocolId;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.BindingSubTlv;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroBackupCase;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroBackupCaseBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroCase;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.Ipv6EroCaseBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv6.ero._case.Ipv6Ero;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv6.ero._case.Ipv6EroBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.segment.routing.ext.rev151014.binding.sub.tlvs.binding.sub.tlv.ipv6.ero.backup._case.Ipv6EroBackupBuilder;
30 public final class Ipv6EroParser implements BindingSubTlvsParser, BindingSubTlvsSerializer {
31 private static final int ERO_IPV6 = 1164;
34 public BindingSubTlv parseSubTlv(final ByteBuf slice, final ProtocolId protocolId) {
35 return parseIpv6EroCase(slice);
39 public int getType() {
44 public void serializeSubTlv(final BindingSubTlv bindingSubTlv, final ByteBuf aggregator) {
45 checkArgument(bindingSubTlv instanceof Ipv6EroCase, "Wrong BindingSubTlv instance expected",
47 final Ipv6Ero ipv6Ero = ((Ipv6EroCase) bindingSubTlv).getIpv6Ero();
48 TlvUtil.writeTLV(getType(), serializeIpv6EroCase(ipv6Ero.isLoose(), ipv6Ero.getAddress()), aggregator);
51 public static Ipv6EroCase parseIpv6EroCase(final ByteBuf buffer) {
52 final Ipv6EroBuilder builder = new Ipv6EroBuilder();
53 final BitArray flags = BitArray.valueOf(buffer, Ipv4EroParser.FLAGS_SIZE);
54 builder.setLoose(flags.get(Ipv4EroParser.LOOSE));
55 buffer.skipBytes(Ipv4EroParser.RESERVED_ERO);
56 builder.setAddress(Ipv6Util.addressForByteBuf(buffer));
57 return new Ipv6EroCaseBuilder().setIpv6Ero(builder.build()).build();
60 public static Ipv6EroBackupCase parseIpv6EroBackupCase(final ByteBuf buffer) {
61 final Ipv6EroBackupBuilder builder = new Ipv6EroBackupBuilder();
62 final BitArray flags = BitArray.valueOf(buffer, Ipv4EroParser.FLAGS_SIZE);
63 builder.setLoose(flags.get(Ipv4EroParser.LOOSE));
64 buffer.skipBytes(Ipv4EroParser.RESERVED_ERO);
65 builder.setAddress(Ipv6Util.addressForByteBuf(buffer));
66 return new Ipv6EroBackupCaseBuilder().setIpv6EroBackup(builder.build()).build();
69 static ByteBuf serializeIpv6EroCase(final Boolean loose, final Ipv6AddressNoZone address) {
70 final ByteBuf buffer = Unpooled.buffer();
71 Ipv4EroParser.serializeEroFlags(buffer, loose);
72 buffer.writeBytes(Ipv6Util.byteBufForAddress(address));