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
9 package org.opendaylight.protocol.bgp.evpn.impl.nlri;
11 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.MPLS1_NID;
12 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.MPLS2_NID;
13 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.extractETI;
14 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.extractIp;
15 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.extractMAC;
16 import static org.opendaylight.protocol.bgp.evpn.impl.nlri.NlriModelUtil.extractMplsLabel;
17 import static org.opendaylight.protocol.util.MplsLabelUtil.byteBufForMplsLabel;
18 import static org.opendaylight.protocol.util.MplsLabelUtil.mplsLabelForByteBuf;
20 import com.google.common.base.Preconditions;
21 import io.netty.buffer.ByteBuf;
22 import io.netty.buffer.Unpooled;
23 import org.opendaylight.protocol.bgp.evpn.spi.pojo.SimpleEsiTypeRegistry;
24 import org.opendaylight.protocol.util.ByteArray;
25 import org.opendaylight.protocol.util.ByteBufWriteUtil;
26 import org.opendaylight.protocol.util.Ipv4Util;
27 import org.opendaylight.protocol.util.Ipv6Util;
28 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.IpAddress;
29 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.IetfYangUtil;
30 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev100924.MacAddress;
31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.NlriType;
32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.esi.Esi;
33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.ethernet.tag.id.EthernetTagId;
34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.ethernet.tag.id.EthernetTagIdBuilder;
35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.evpn.EvpnChoice;
36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.evpn.evpn.choice.MacIpAdvRouteCase;
37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.evpn.evpn.choice.MacIpAdvRouteCaseBuilder;
38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.mac.ip.adv.route.MacIpAdvRoute;
39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.evpn.rev160321.mac.ip.adv.route.MacIpAdvRouteBuilder;
40 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.network.concepts.rev131125.MplsLabel;
41 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
42 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
44 final class MACIpAdvRParser extends AbstractEvpnNlri {
45 static final NodeIdentifier MAC_IP_ADV_ROUTE_NID = new NodeIdentifier(MacIpAdvRoute.QNAME);
46 private static final int BITS_SIZE = 8;
49 public EvpnChoice parseEvpn(final ByteBuf buffer) {
50 final Esi esi = SimpleEsiTypeRegistry.getInstance().parseEsi(buffer.readSlice(ESI_SIZE));
51 final EthernetTagId eti = new EthernetTagIdBuilder().setVlanId(buffer.readUnsignedInt()).build();
53 final MacAddress mac = IetfYangUtil.INSTANCE.macAddressFor(ByteArray.readBytes(buffer, MAC_ADDRESS_LENGTH));
54 final IpAddress ip = parseIp(buffer);
55 final MplsLabel label1 = mplsLabelForByteBuf(buffer);
57 if (buffer.readableBytes() > 0) {
58 label2 = mplsLabelForByteBuf(buffer);
62 final MacIpAdvRouteBuilder builder = new MacIpAdvRouteBuilder().setEsi(esi).setEthernetTagId(eti).setMacAddress(mac).setIpAddress(ip)
63 .setMplsLabel1(label1).setMplsLabel2(label2);
64 return new MacIpAdvRouteCaseBuilder().setMacIpAdvRoute(builder.build()).build();
68 protected NlriType getType() {
69 return NlriType.MacIpAdv;
73 public ByteBuf serializeBody(final EvpnChoice evpn) {
74 Preconditions.checkArgument(evpn instanceof MacIpAdvRouteCase, "Unknown evpn instance. Passed %s. Needed MacIpAdvRouteCase.", evpn.getClass());
75 return serializeBody((MacIpAdvRouteCase) evpn);
79 public EvpnChoice serializeEvpnModel(final ContainerNode evpn) {
80 final MacIpAdvRouteBuilder builder = serializeKeyModel(evpn);
81 builder.setEsi(serializeEsi(evpn));
82 builder.setMplsLabel1(extractMplsLabel(evpn, MPLS1_NID));
83 builder.setMplsLabel2(extractMplsLabel(evpn, MPLS2_NID));
84 return new MacIpAdvRouteCaseBuilder().setMacIpAdvRoute(builder.build()).build();
88 public EvpnChoice createRouteKey(final ContainerNode evpn) {
89 return new MacIpAdvRouteCaseBuilder().setMacIpAdvRoute(serializeKeyModel(evpn).build()).build();
92 private static MacIpAdvRouteBuilder serializeKeyModel(final ContainerNode evpn) {
93 final MacIpAdvRouteBuilder builder = new MacIpAdvRouteBuilder();
94 builder.setEthernetTagId(extractETI(evpn));
95 builder.setMacAddress(extractMAC(evpn));
96 builder.setIpAddress(extractIp(evpn));
100 private static ByteBuf serializeBody(final MacIpAdvRouteCase evpnCase) {
101 final ByteBuf body = Unpooled.buffer();
102 final MacIpAdvRoute evpn = evpnCase.getMacIpAdvRoute();
103 final Esi esi = evpn.getEsi();
105 SimpleEsiTypeRegistry.getInstance().serializeEsi(evpn.getEsi(), body);
107 ByteBufWriteUtil.writeUnsignedInt(evpn.getEthernetTagId().getVlanId(), body);
109 final MacAddress mac = evpn.getMacAddress();
110 body.writeByte(MAC_ADDRESS_LENGTH * BITS_SIZE);
111 body.writeBytes(IetfYangUtil.INSTANCE.bytesFor(mac));
112 final ByteBuf ipAddress = serializeIp(evpn.getIpAddress());
113 Preconditions.checkArgument(ipAddress.readableBytes() > 0);
114 body.writeBytes(ipAddress);
115 final MplsLabel mpls1 = evpn.getMplsLabel1();
117 body.writeBytes(byteBufForMplsLabel(mpls1));
119 final MplsLabel mpls2 = evpn.getMplsLabel2();
121 body.writeBytes(byteBufForMplsLabel(mpls2));
126 private static ByteBuf serializeIp(final IpAddress ipAddress) {
127 final ByteBuf body = Unpooled.buffer();
128 if (ipAddress.getIpv4Address() != null) {
129 body.writeByte(Ipv4Util.IP4_LENGTH * BITS_SIZE);
130 body.writeBytes(Ipv4Util.bytesForAddress(ipAddress.getIpv4Address()));
131 } else if (ipAddress.getIpv6Address() != null) {
132 body.writeByte(Ipv6Util.IPV6_LENGTH * BITS_SIZE);
133 body.writeBytes(Ipv6Util.bytesForAddress(ipAddress.getIpv6Address()));
135 body.writeZero(ZERO_BYTE);
140 private static IpAddress parseIp(final ByteBuf buffer) {
141 final int ipLength = buffer.readUnsignedByte();
142 if (ipLength == Ipv6Util.IPV6_LENGTH * BITS_SIZE) {
143 return new IpAddress(Ipv6Util.addressForByteBuf(buffer));
144 } else if (ipLength == Ipv4Util.IP4_LENGTH * BITS_SIZE) {
145 return new IpAddress(Ipv4Util.addressForByteBuf(buffer));