2 * Copyright (c) 2013 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.parser.impl.message.update;
10 import io.netty.buffer.ByteBuf;
11 import java.util.ArrayList;
12 import java.util.List;
13 import javax.annotation.Nonnull;
14 import javax.annotation.Nullable;
15 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
16 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
17 import org.opendaylight.protocol.bgp.parser.spi.MultiPathSupportUtil;
18 import org.opendaylight.protocol.bgp.parser.spi.NlriParser;
19 import org.opendaylight.protocol.bgp.parser.spi.PathIdUtil;
20 import org.opendaylight.protocol.bgp.parser.spi.PeerSpecificParserConstraint;
21 import org.opendaylight.protocol.util.Ipv6Util;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.DestinationIpv6;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.DestinationIpv6Builder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.destination.ipv6.Ipv6Prefixes;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.ipv6.prefixes.destination.ipv6.Ipv6PrefixesBuilder;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationIpv6CaseBuilder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
34 public final class Ipv6NlriParser implements NlriParser {
36 private static DestinationIpv6 prefixes(final ByteBuf nlri, final PeerSpecificParserConstraint constraint,
37 final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi) {
38 final List<Ipv6Prefixes> prefixes = new ArrayList<>();
39 final boolean supported = MultiPathSupportUtil.isTableTypeSupported(constraint, new BgpTableTypeImpl(afi, safi));
40 while (nlri.isReadable()) {
41 final Ipv6PrefixesBuilder prefixesBuilder = new Ipv6PrefixesBuilder();
43 prefixesBuilder.setPathId(PathIdUtil.readPathId(nlri));
45 prefixesBuilder.setPrefix(Ipv6Util.prefixForByteBuf(nlri));
46 prefixes.add(prefixesBuilder.build());
48 return new DestinationIpv6Builder().setIpv6Prefixes(prefixes).build();
52 public void parseNlri(final ByteBuf nlri, final MpUnreachNlriBuilder builder) throws BGPParsingException {
53 parseNlri(nlri, builder, null);
57 public void parseNlri(final ByteBuf nlri, final MpReachNlriBuilder builder) throws BGPParsingException {
58 parseNlri(nlri, builder, null);
62 public void parseNlri(@Nonnull final ByteBuf nlri, @Nonnull final MpReachNlriBuilder builder,
63 @Nullable final PeerSpecificParserConstraint constraint) throws BGPParsingException {
64 builder.setAdvertizedRoutes(new AdvertizedRoutesBuilder().setDestinationType(new DestinationIpv6CaseBuilder().
65 setDestinationIpv6(prefixes(nlri, constraint, builder.getAfi(), builder.getSafi())).build()).build());
69 public void parseNlri(@Nonnull final ByteBuf nlri, @Nonnull final MpUnreachNlriBuilder builder, @Nullable final PeerSpecificParserConstraint constraint) throws BGPParsingException {
70 builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.inet.rev150305.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationIpv6CaseBuilder().setDestinationIpv6(
71 prefixes(nlri, constraint, builder.getAfi(), builder.getSafi())).build()).build());