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.parser.spi;
10 import com.google.common.base.Preconditions;
11 import io.netty.buffer.ByteBuf;
12 import org.opendaylight.protocol.bgp.parser.BGPParsingException;
13 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParameters;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.bgp.parameters.optional.capabilities.CParametersBuilder;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1;
18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.CParameters1Builder;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.mp.capabilities.RouteRefreshCapabilityBuilder;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.AddressFamily;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.SubsequentAddressFamily;
23 public final class MultiprotocolCapabilitiesUtil {
25 public static final CParameters RR_CAPABILITY = new CParametersBuilder().addAugmentation(CParameters1.class,
26 new CParameters1Builder().setRouteRefreshCapability(new RouteRefreshCapabilityBuilder().build()).build()).build();
28 private static final int RESERVED = 1;
30 public static void serializeMPAfiSafi(final AddressFamilyRegistry afiReg, final SubsequentAddressFamilyRegistry safiReg,
31 final Class<? extends AddressFamily> afi, final Class<? extends SubsequentAddressFamily> safi, final ByteBuf capBuffer) {
32 final Integer afival = afiReg.numberForClass(afi);
33 Preconditions.checkArgument(afival != null, "Unhandled address family " + afi);
34 capBuffer.writeShort(afival);
36 capBuffer.writeZero(RESERVED);
38 final Integer safival = safiReg.numberForClass(safi);
39 Preconditions.checkArgument(safival != null, "Unhandled subsequent address family " + safi);
40 capBuffer.writeByte(safival);
43 public static BgpTableType parseMPAfiSafi(final ByteBuf buffer, final AddressFamilyRegistry afiReg, final SubsequentAddressFamilyRegistry safiReg) throws BGPParsingException {
44 final int afiVal = buffer.readUnsignedShort();
45 final Class<? extends AddressFamily> afi = afiReg.classForFamily(afiVal);
47 throw new BGPParsingException("Address Family Identifier: '" + afiVal + "' not supported.");
50 buffer.skipBytes(RESERVED);
51 final int safiVal = buffer.readUnsignedByte();
52 final Class<? extends SubsequentAddressFamily> safi = safiReg.classForFamily(safiVal);
54 throw new BGPParsingException("Subsequent Address Family Identifier: '" + safiVal + "' not supported.");
56 return new BgpTableTypeImpl(afi, safi);