Examples with Nlri org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri used on opensource projects

Example 1 with Nlri

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri in project bgpcep by opendaylight.

the class AbstractFlowspecNlriParser method parseNlri.

@Override
public final void parseNlri(@Nonnull final ByteBuf nlri, @Nonnull final MpUnreachNlriBuilder builder, @Nullable final PeerSpecificParserConstraint constraint) throws BGPParsingException {
    if (!nlri.isReadable()) {
        return;
    }
    final PathId pathId = readPathId(nlri, builder.getAfi(), builder.getSafi(), constraint);
    final Object[] nlriFields = parseNlri(nlri);
    builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(createWithdrawnDestinationType(nlriFields, pathId)).build());
}

Example 2 with Nlri

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri in project bgpcep by opendaylight.

the class AbstractFlowspecNlriParser method parseNlriFlowspecList.

/**
 * Parses Flowspec NLRI into list of Flowspec.
 *
 * @param nlri byte representation of NLRI which will be parsed
 * @return list of Flowspec
 */
protected final List<Flowspec> parseNlriFlowspecList(@Nonnull final ByteBuf nlri) throws BGPParsingException {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<Flowspec> fss = new ArrayList<>();
    while (nlri.isReadable()) {
        int nlriLength = readNlriLength(nlri);
        Preconditions.checkState(nlriLength > 0 && nlriLength <= nlri.readableBytes(), "Invalid flowspec NLRI length %s", nlriLength);
        LOG.trace("Flowspec NLRI length is {}", nlriLength);
        while (nlriLength > 0) {
            final int readableLength = nlri.readableBytes();
            final FlowspecBuilder builder = new FlowspecBuilder();
            builder.setFlowspecType(this.flowspecTypeRegistry.parseFlowspecType(nlri));
            fss.add(builder.build());
            final int flowspecTypeLength = readableLength - nlri.readableBytes();
            nlriLength -= flowspecTypeLength;
        }
        Preconditions.checkState(nlriLength == 0, "Remain NLRI length should be 0 instead of %s", nlriLength);
    }
    return fss;
}

Example 3 with Nlri

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri in project bgpcep by opendaylight.

the class EvpnNlriParser method extractDestination.

private static EvpnDestination extractDestination(final DataContainerNode<? extends PathArgument> evpnChoice, final ExtractionInterface extract) {
    final EvpnRegistry reg = SimpleEvpnNlriRegistry.getInstance();
    final ChoiceNode cont = (ChoiceNode) evpnChoice.getChild(EVPN_CHOICE_NID).get();
    final EvpnChoice evpnValue = extract.check(reg, cont);
    if (evpnValue == null) {
        LOG.warn("Unrecognized Nlri {}", cont);
        return null;
    }
    return new EvpnDestinationBuilder().setRouteDistinguisher(extractRouteDistinguisher(evpnChoice)).setEvpnChoice(evpnValue).build();
}

Example 4 with Nlri

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri in project bgpcep by opendaylight.

the class EvpnNlriParser method parseNlri.

@Nullable
private static List<EvpnDestination> parseNlri(final ByteBuf nlri) {
    if (!nlri.isReadable()) {
        return null;
    }
    final List<EvpnDestination> dests = new ArrayList<>();
    while (nlri.isReadable()) {
        final EvpnDestinationBuilder builder = new EvpnDestinationBuilder();
        final NlriType type = NlriType.forValue(nlri.readUnsignedByte());
        final int length = nlri.readUnsignedByte();
        final ByteBuf nlriBuf = nlri.readSlice(length);
        builder.setRouteDistinguisher(parseRouteDistinguisher(nlriBuf));
        builder.setEvpnChoice(SimpleEvpnNlriRegistry.getInstance().parseEvpn(type, nlriBuf));
        dests.add(builder.build());
    }
    return dests;
}

Example 5 with Nlri

use of org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev171207.update.message.Nlri in project bgpcep by opendaylight.

the class BGPParserTest method testGetUpdateMessage4.

/*
     * Tests empty AS_PATH, ORIGIN.EGP, LOCAL_PREF, EXTENDED_COMMUNITIES (Ipv4 Addr specific)
     *
     * ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff <- marker
     * 00 4A <- length (73) - including header
     * 02 <- message type
     * 00 00 <- withdrawn routes length
     * 00 27 <- total path attribute length (39)
     * 40 <- attribute flags
     * 01 <- attribute type code (Origin)
     * 01 <- attribute length
     * 01 <- Origin value (EGP)
     * 40 <- attribute flags
     * 02 <- attribute type code (As path)
     * 00 <- attribute length
     * 40 <- attribute flags
     * 03 <- attribute type (Next hop)
     * 04 <- attribute length
     * 03 03 03 03 <- value (3.3.3.3)
     * 80 <- attribute flags
     * 04 <- attribute type code (Multi exit disc)
     * 04 <- attribute length
     * 00 00 00 00 <- value
     * 40 <- attribute flags
     * 05 <- attribute type (Local Pref)
     * 04 <- attribute length
     * 00 00 00 64 <- value (100)
     * c0 <- attribute flags
     * 10 <- attribute type (extended community)
     * 08 <- attribute length
     * 01 04 <- value (type - Ipv4 Address Specific Extended Community)
     * c0 a8 01 00 <- value (global adm. 198.162.1.0)
     * 12 34 <- value (local adm. 4660)
     *
     * //NLRI
     * 18 0a 1e 03 <- IPv4 Prefix (10.30.3.0 / 24)
     * 18 0a 1e 02 <- IPv4 Prefix (10.30.2.0 / 24)
     * 18 0a 1e 01 <- IPv4 Prefix (10.30.1.0 / 24)
     */
@Test
public void testGetUpdateMessage4() throws Exception {
    final byte[] body = ByteArray.cutBytes(inputBytes.get(3), MessageUtil.COMMON_HEADER_LENGTH);
    final int messageLength = ByteArray.bytesToInt(ByteArray.subByte(inputBytes.get(3), MessageUtil.MARKER_LENGTH, LENGTH_FIELD_LENGTH));
    final Update message = BGPParserTest.updateParser.parseMessageBody(Unpooled.copiedBuffer(body), messageLength);
    final UpdateBuilder builder = new UpdateBuilder();
    // check fields
    assertNull(message.getWithdrawnRoutes());
    // check nlri
    final List<Nlri> nlris = Lists.newArrayList();
    nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.3.0/24")).build());
    nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.2.0/24")).build());
    nlris.add(new NlriBuilder().setPrefix(new Ipv4Prefix("10.30.1.0/24")).build());
    assertEquals(nlris, message.getNlri());
    builder.setNlri(nlris);
    // attributes
    final Ipv4NextHopCase nextHop = new Ipv4NextHopCaseBuilder().setIpv4NextHop(new Ipv4NextHopBuilder().setGlobal(new Ipv4Address("3.3.3.3")).build()).build();
    final List<ExtendedCommunities> comms = Lists.newArrayList();
    comms.add(new ExtendedCommunitiesBuilder().setTransitive(true).setExtendedCommunity(new RouteTargetIpv4CaseBuilder().setRouteTargetIpv4(new RouteTargetIpv4Builder().setGlobalAdministrator(new Ipv4Address("192.168.1.0")).setLocalAdministrator(4660).build()).build()).build());
    // check path attributes
    final Attributes attrs = message.getAttributes();
    final AttributesBuilder paBuilder = new AttributesBuilder();
    paBuilder.setOrigin(new OriginBuilder().setValue(BgpOrigin.Egp).build());
    assertEquals(paBuilder.getOrigin(), attrs.getOrigin());
    paBuilder.setAsPath(new AsPathBuilder().setSegments(Collections.emptyList()).build());
    assertEquals(paBuilder.getAsPath(), attrs.getAsPath());
    paBuilder.setCNextHop(nextHop);
    assertEquals(paBuilder.getCNextHop(), attrs.getCNextHop());
    paBuilder.setMultiExitDisc(new MultiExitDiscBuilder().setMed((long) 0).build());
    assertEquals(paBuilder.getMultiExitDisc(), attrs.getMultiExitDisc());
    paBuilder.setLocalPref(new LocalPrefBuilder().setPref(100L).build());
    assertEquals(paBuilder.getLocalPref(), attrs.getLocalPref());
    paBuilder.setExtendedCommunities(comms);
    assertEquals(paBuilder.getExtendedCommunities(), attrs.getExtendedCommunities());
    paBuilder.setUnrecognizedAttributes(Collections.emptyList());
    // check API message
    builder.setAttributes(paBuilder.build());
    assertEquals(builder.build(), message);
    final ByteBuf buffer = Unpooled.buffer();
    BGPParserTest.updateParser.serializeMessage(message, buffer);
    assertArrayEquals(inputBytes.get(3), ByteArray.readAllBytes(buffer));
}