2 * Copyright (c) 2015 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.bmp.spi.parser;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static java.util.Objects.requireNonNull;
13 import io.netty.buffer.ByteBuf;
14 import org.opendaylight.bgp.concepts.RouteDistinguisherUtil;
15 import org.opendaylight.protocol.bgp.parser.spi.MessageRegistry;
16 import org.opendaylight.protocol.util.BitArray;
17 import org.opendaylight.protocol.util.ByteArray;
18 import org.opendaylight.protocol.util.Ipv4Util;
19 import org.opendaylight.protocol.util.Ipv6Util;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.AsNumber;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressNoZone;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Timestamp;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.AdjRibInType;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.Peer.PeerDistinguisher;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.PeerType;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.peer.header.PeerHeader;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.peer.header.PeerHeaderBuilder;
28 import org.opendaylight.yangtools.concepts.Builder;
29 import org.opendaylight.yangtools.yang.binding.Notification;
30 import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
32 public abstract class AbstractBmpPerPeerMessageParser<T extends Builder<?>> extends AbstractBmpMessageWithTlvParser<T> {
33 private static final int L_FLAG_POS = 1;
34 private static final int V_FLAG_POS = 0;
35 private static final int FLAGS_SIZE = 8;
36 private static final int PEER_DISTINGUISHER_SIZE = 8;
37 private static final int PER_PEER_HEADER_SIZE = 32;
39 private final MessageRegistry bgpMssageRegistry;
41 public AbstractBmpPerPeerMessageParser(final MessageRegistry bgpMssageRegistry) {
42 this(bgpMssageRegistry, null);
45 public AbstractBmpPerPeerMessageParser(final MessageRegistry bgpMssageRegistry, final BmpTlvRegistry tlvRegistry) {
47 this.bgpMssageRegistry = requireNonNull(bgpMssageRegistry);
51 public void serializeMessageBody(final Notification message, final ByteBuf buffer) {
53 instanceof org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329
55 final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp.message.rev180329.PeerHeader
56 messageWithPerPeerHeader = (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bmp
57 .message.rev180329.PeerHeader) message;
58 serializePerPeerHeader(messageWithPerPeerHeader.getPeerHeader(), buffer);
62 protected static PeerHeader parsePerPeerHeader(final ByteBuf bytes) {
63 checkArgument(bytes.readableBytes() >= PER_PEER_HEADER_SIZE);
64 final PeerHeaderBuilder phBuilder = new PeerHeaderBuilder();
65 final PeerType peerType = PeerType.forValue(bytes.readByte());
66 phBuilder.setType(peerType);
67 final BitArray flags = BitArray.valueOf(bytes, FLAGS_SIZE);
68 phBuilder.setAdjRibInType(AdjRibInType.forValue(flags.get(L_FLAG_POS) ? 1 : 0));
69 phBuilder.setIpv4(!flags.get(V_FLAG_POS));
72 phBuilder.setPeerDistinguisher(
73 new PeerDistinguisher(RouteDistinguisherUtil.parseRouteDistinguisher(bytes)));
76 phBuilder.setPeerDistinguisher(
77 new PeerDistinguisher(ByteArray.readBytes(bytes, PEER_DISTINGUISHER_SIZE)));
81 bytes.skipBytes(PEER_DISTINGUISHER_SIZE);
84 if (phBuilder.isIpv4()) {
85 bytes.skipBytes(Ipv6Util.IPV6_LENGTH - Ipv4Util.IP4_LENGTH);
86 phBuilder.setAddress(new IpAddressNoZone(Ipv4Util.addressForByteBuf(bytes)));
88 phBuilder.setAddress(new IpAddressNoZone(Ipv6Util.addressForByteBuf(bytes)));
90 phBuilder.setAs(new AsNumber(ByteBufUtils.readUint32(bytes)));
91 phBuilder.setBgpId(Ipv4Util.addressForByteBuf(bytes));
92 phBuilder.setTimestampSec(new Timestamp(ByteBufUtils.readUint32(bytes)));
93 phBuilder.setTimestampMicro(new Timestamp(ByteBufUtils.readUint32(bytes)));
94 return phBuilder.build();
97 protected void serializePerPeerHeader(final PeerHeader peerHeader, final ByteBuf output) {
98 checkArgument(peerHeader != null, "Per-peer header cannot be null.");
99 final PeerType peerType = peerHeader.getType();
100 output.writeByte(peerType.getIntValue());
101 final BitArray flags = new BitArray(FLAGS_SIZE);
102 flags.set(L_FLAG_POS, peerHeader.getAdjRibInType().getIntValue() != 0);
103 flags.set(V_FLAG_POS, !peerHeader.isIpv4());
104 flags.toByteBuf(output);
105 final PeerDistinguisher peerDistinguisher = peerHeader.getPeerDistinguisher();
108 RouteDistinguisherUtil.serializeRouteDistinquisher(peerDistinguisher.getRouteDistinguisher(), output);
111 output.writeBytes(peerDistinguisher.getBinary());
115 output.writeZero(PEER_DISTINGUISHER_SIZE);
118 if (peerHeader.isIpv4()) {
119 output.writeZero(Ipv6Util.IPV6_LENGTH - Ipv4Util.IP4_LENGTH);
120 Ipv4Util.writeIpv4Address(peerHeader.getAddress().getIpv4AddressNoZone(), output);
122 Ipv6Util.writeIpv6Address(peerHeader.getAddress().getIpv6AddressNoZone(), output);
124 ByteBufUtils.write(output, peerHeader.getAs().getValue());
125 Ipv4Util.writeIpv4Address(peerHeader.getBgpId(), output);
127 final Timestamp stampSec = peerHeader.getTimestampSec();
128 if (stampSec != null) {
129 ByteBufUtils.write(output, stampSec.getValue());
133 final Timestamp stampMicro = peerHeader.getTimestampMicro();
134 if (stampMicro != null) {
135 ByteBufUtils.write(output, stampMicro.getValue());
141 protected final MessageRegistry getBgpMessageRegistry() {
142 return this.bgpMssageRegistry;