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.pcep.ietf.stateful07;
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.pcep.spi.PCEPDeserializerException;
15 import org.opendaylight.protocol.pcep.spi.TlvParser;
16 import org.opendaylight.protocol.pcep.spi.TlvSerializer;
17 import org.opendaylight.protocol.pcep.spi.TlvUtil;
18 import org.opendaylight.protocol.util.Ipv4Util;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiers;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.LspIdentifiersBuilder;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.AddressFamily;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4Case;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv4CaseBuilder;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.Ipv6Case;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.ietf.stateful.rev181109.lsp.identifiers.tlv.lsp.identifiers.address.family.ipv4._case.Ipv4Builder;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev181109.Tlv;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.Ipv4ExtendedTunnelId;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.LspId;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev150820.TunnelId;
31 import org.opendaylight.yangtools.yang.common.Uint32;
32 import org.opendaylight.yangtools.yang.common.netty.ByteBufUtils;
35 * Parser for {@link LspIdentifiers}.
37 public final class Stateful07LSPIdentifierIpv4TlvParser implements TlvParser, TlvSerializer {
38 public static final int TYPE = 18;
40 private static final int V4_LENGTH = 16;
43 public LspIdentifiers parseTlv(final ByteBuf buffer) throws PCEPDeserializerException {
47 checkArgument(buffer.readableBytes() == V4_LENGTH, "Length %s does not match LSP Identifiers Ipv4 tlv length.",
48 buffer.readableBytes());
49 final Ipv4Builder builder = new Ipv4Builder()
50 .setIpv4TunnelSenderAddress(Ipv4Util.addressForByteBuf(buffer));
51 final LspId lspId = new LspId(Uint32.valueOf(buffer.readUnsignedShort()));
52 final TunnelId tunnelId = new TunnelId(ByteBufUtils.readUint16(buffer));
53 builder.setIpv4ExtendedTunnelId(new Ipv4ExtendedTunnelId(Ipv4Util.addressForByteBuf(buffer)));
54 builder.setIpv4TunnelEndpointAddress(Ipv4Util.addressForByteBuf(buffer));
55 final AddressFamily afi = new Ipv4CaseBuilder().setIpv4(builder.build()).build();
56 return new LspIdentifiersBuilder()
57 .setAddressFamily(afi)
59 .setTunnelId(tunnelId)
64 public void serializeTlv(final Tlv tlv, final ByteBuf buffer) {
65 checkArgument(tlv instanceof LspIdentifiers, "LspIdentifiersTlv is mandatory.");
66 final LspIdentifiers lsp = (LspIdentifiers) tlv;
67 final AddressFamily afi = lsp.getAddressFamily();
68 final ByteBuf body = Unpooled.buffer();
69 if (afi.implementedInterface().equals(Ipv6Case.class)) {
70 new Stateful07LSPIdentifierIpv6TlvParser().serializeTlv(tlv, buffer);
72 final Ipv4 ipv4 = ((Ipv4Case) afi).getIpv4();
73 checkArgument(ipv4.getIpv4TunnelSenderAddress() != null, "Ipv4TunnelSenderAddress is mandatory.");
74 Ipv4Util.writeIpv4Address(ipv4.getIpv4TunnelSenderAddress(), body);
75 checkArgument(lsp.getLspId() != null, "LspId is mandatory.");
76 body.writeShort(lsp.getLspId().getValue().shortValue());
77 final TunnelId tunnelId = lsp.getTunnelId();
78 checkArgument(tunnelId != null, "TunnelId is mandatory.");
79 ByteBufUtils.write(body, tunnelId.getValue());
80 checkArgument(ipv4.getIpv4ExtendedTunnelId() != null, "Ipv4ExtendedTunnelId is mandatory.");
81 Ipv4Util.writeIpv4Address(ipv4.getIpv4ExtendedTunnelId(), body);
82 checkArgument(ipv4.getIpv4TunnelEndpointAddress() != null, "Ipv4TunnelEndpointAddress is mandatory.");
83 Ipv4Util.writeIpv4Address(ipv4.getIpv4TunnelEndpointAddress(), body);
84 TlvUtil.formatTlv(TYPE, body, buffer);