*/
package org.opendaylight.protocol.bgp.linkstate.nlri;
+import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.opendaylight.protocol.bgp.parser.spi.NlriSerializer;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.Identifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NlriType;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NodeIdentifier;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.ProtocolId;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.RouteDistinguisher;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.ObjectType;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.NodeCaseBuilder;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.PrefixCase;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.PrefixCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.link._case.LinkDescriptors;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.link._case.LocalNodeDescriptors;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.link._case.RemoteNodeDescriptors;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.node._case.NodeDescriptors;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.prefix._case.AdvertisingNodeDescriptors;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCaseBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.update.PathAttributes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes1;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.PathAttributes2;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpReachNlriBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlri;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.MpUnreachNlriBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutes;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.path.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.linkstate.object.type.prefix._case.PrefixDescriptors;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCaseBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCase;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.path.attributes.Attributes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes1;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.Attributes2;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpReachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.MpUnreachNlriBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.reach.nlri.AdvertizedRoutesBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.update.attributes.mp.unreach.nlri.WithdrawnRoutesBuilder;
import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
+import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
* Parser and serializer for Linkstate NLRI.
*/
public final class LinkstateNlriParser implements NlriParser, NlriSerializer {
+
private static final Logger LOG = LoggerFactory.getLogger(LinkstateNlriParser.class);
+
private static final int ROUTE_DISTINGUISHER_LENGTH = 8;
private static final int PROTOCOL_ID_LENGTH = 1;
private static final int IDENTIFIER_LENGTH = 8;
private static final int TYPE_LENGTH = 2;
private static final int LENGTH_SIZE = 2;
+ private static final int LOCAL_NODE_DESCRIPTORS_TYPE = 256;
+ private static final int REMOTE_NODE_DESCRIPTORS_TYPE = 257;
- private static final int LOCAL_NODE_DESCRIPTORS = 256;
- private static final int REMOTE_NODE_DESCRIPTORS = 257;
+ private static final NodeIdentifier OBJECT_TYPE_NID = new NodeIdentifier(ObjectType.QNAME);
+ private static final NodeIdentifier NODE_DESCRIPTORS_NID = new NodeIdentifier(NodeDescriptors.QNAME);
+ private static final NodeIdentifier LOCAL_NODE_DESCRIPTORS_NID = new NodeIdentifier(LocalNodeDescriptors.QNAME);
+ private static final NodeIdentifier REMOTE_NODE_DESCRIPTORS_NID = new NodeIdentifier(RemoteNodeDescriptors.QNAME);
+ private static final NodeIdentifier ADVERTISING_NODE_DESCRIPTORS_NID = new NodeIdentifier(AdvertisingNodeDescriptors.QNAME);
+
+ private static final NodeIdentifier DISTINGUISHER_NID = new NodeIdentifier(QName.cachedReference(QName.create(CLinkstateDestination.QNAME, "route-distinguisher")));
+ private static final NodeIdentifier PROTOCOL_ID_NID = new NodeIdentifier(QName.cachedReference(QName.create(CLinkstateDestination.QNAME, "protocol-id")));
+ private static final NodeIdentifier IDENTIFIER_NID = new NodeIdentifier(QName.cachedReference(QName.create(CLinkstateDestination.QNAME, "identifier")));
private final boolean isVpn;
this.isVpn = isVpn;
}
- private static NodeIdentifier parseLink(final CLinkstateDestinationBuilder builder, final ByteBuf buffer, final LocalNodeDescriptors localDescriptors)
+ private static org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NodeIdentifier parseLink(final CLinkstateDestinationBuilder builder, final ByteBuf buffer, final LocalNodeDescriptors localDescriptors)
throws BGPParsingException {
final int type = buffer.readUnsignedShort();
final int length = buffer.readUnsignedShort();
- final NodeIdentifier remote = null;
+ final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NodeIdentifier remote = null;
RemoteNodeDescriptors remoteDescriptors = null;
- if (type == REMOTE_NODE_DESCRIPTORS) {
+ if (type == REMOTE_NODE_DESCRIPTORS_TYPE) {
remoteDescriptors = (RemoteNodeDescriptors)NodeNlriParser.parseNodeDescriptors(buffer.readSlice(length), NlriType.Link, false);
}
builder.setObjectType(new LinkCaseBuilder()
builder.setIdentifier(identifier);
// if we are dealing with linkstate nodes/links, parse local node descriptor
- NodeIdentifier localDescriptor = null;
+ org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.NodeIdentifier localDescriptor = null;
final int localtype = nlri.readUnsignedShort();
final int locallength = nlri.readUnsignedShort();
- if (localtype == LOCAL_NODE_DESCRIPTORS) {
+ if (localtype == LOCAL_NODE_DESCRIPTORS_TYPE) {
localDescriptor = NodeNlriParser.parseNodeDescriptors(nlri.readSlice(locallength), type, true);
}
final int restLength = length - (isVpn ? ROUTE_DISTINGUISHER_LENGTH : 0) - PROTOCOL_ID_LENGTH - IDENTIFIER_LENGTH
final List<CLinkstateDestination> dst = parseNlri(nlri, this.isVpn);
builder.setWithdrawnRoutes(new WithdrawnRoutesBuilder().setDestinationType(
- new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder().setDestinationLinkstate(
- new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder().setCLinkstateDestination(
+ new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.DestinationLinkstateCaseBuilder().setDestinationLinkstate(
+ new org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.unreach.nlri.withdrawn.routes.destination.type.destination.linkstate._case.DestinationLinkstateBuilder().setCLinkstateDestination(
dst).build()).build()).build());
}
if (ot instanceof PrefixCase) {
final PrefixCase pCase = (PrefixCase)destination.getObjectType();
NodeNlriParser.serializeNodeDescriptors(pCase.getAdvertisingNodeDescriptors(), ldescs);
- TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS, ldescs, nlriByteBuf);
+ TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
if (pCase.getPrefixDescriptors() != null) {
PrefixNlriParser.serializePrefixDescriptors(pCase.getPrefixDescriptors(), nlriByteBuf);
if (pCase.getPrefixDescriptors().getIpReachabilityInformation().getIpv4Prefix() != null) {
} else if (ot instanceof LinkCase) {
final LinkCase lCase = (LinkCase)destination.getObjectType();
NodeNlriParser.serializeNodeDescriptors(lCase.getLocalNodeDescriptors(), ldescs);
- TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS, ldescs, nlriByteBuf);
+ TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
final ByteBuf rdescs = Unpooled.buffer();
NodeNlriParser.serializeNodeDescriptors(lCase.getRemoteNodeDescriptors(), rdescs);
- TlvUtil.writeTLV(REMOTE_NODE_DESCRIPTORS, rdescs, nlriByteBuf);
+ TlvUtil.writeTLV(REMOTE_NODE_DESCRIPTORS_TYPE, rdescs, nlriByteBuf);
if (lCase.getLinkDescriptors() != null) {
LinkNlriParser.serializeLinkDescriptors(lCase.getLinkDescriptors(), nlriByteBuf);
}
} else if (ot instanceof NodeCase) {
final NodeCase nCase = (NodeCase)destination.getObjectType();
NodeNlriParser.serializeNodeDescriptors(nCase.getNodeDescriptors(), ldescs);
- TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS, ldescs, nlriByteBuf);
+ TlvUtil.writeTLV(LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
nlriType = NlriType.Node;
} else {
LOG.warn("Unknown NLRI Type.");
@Override
public void serializeAttribute(final DataObject attribute, final ByteBuf byteAggregator) {
- Preconditions.checkArgument(attribute instanceof PathAttributes, "Attribute parameter is not a PathAttribute object.");
- final PathAttributes pathAttributes = (PathAttributes) attribute;
- final PathAttributes1 pathAttributes1 = pathAttributes.getAugmentation(PathAttributes1.class);
- final PathAttributes2 pathAttributes2 = pathAttributes.getAugmentation(PathAttributes2.class);
+ Preconditions.checkArgument(attribute instanceof Attributes, "Attribute parameter is not a PathAttribute object.");
+ final Attributes pathAttributes = (Attributes) attribute;
+ final Attributes1 pathAttributes1 = pathAttributes.getAugmentation(Attributes1.class);
+ final Attributes2 pathAttributes2 = pathAttributes.getAugmentation(Attributes2.class);
if (pathAttributes1 != null) {
final AdvertizedRoutes routes = (pathAttributes1.getMpReachNlri()).getAdvertizedRoutes();
if (routes != null &&
routes.getDestinationType()
instanceof
- org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase) {
- final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase
- linkstateCase = (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.path.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase) routes.getDestinationType();
+ org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase) {
+ final org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase
+ linkstateCase = (org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.linkstate.rev150210.update.attributes.mp.reach.nlri.advertized.routes.destination.type.DestinationLinkstateCase) routes.getDestinationType();
for (final CLinkstateDestination cLinkstateDestination : linkstateCase.getDestinationLinkstate().getCLinkstateDestination()) {
serializeNlri(cLinkstateDestination, byteAggregator);
}
}
}
+
+ private static int domProtocolIdValue(final String protocolId) {
+ switch(protocolId) {
+ case "unknown":
+ return 0;
+ case "isis-level1":
+ return 1;
+ case "isis-level2":
+ return 2;
+ case "ospf":
+ return 3;
+ case "direct":
+ return 4;
+ case "static":
+ return 5;
+ default:
+ return 0;
+ }
+ }
+
+ /**
+ * Serializes DOM interpretation of Linkstate NLRI to ByteBuf. Used to create linkstate route key.
+ *
+ * @param linkstate UnkeyedListEntryNode basically CLinkstateDestination in DOM
+ * @param buffer ByteBuf where the key will be serialized
+ */
+ public static void serializeNlri(final UnkeyedListEntryNode linkstate, final ByteBuf buffer) {
+ final ByteBuf nlriByteBuf = Unpooled.buffer();
+
+ // serialize common parts
+ final Optional<DataContainerChild<? extends PathArgument, ?>> distinguisher = linkstate.getChild(DISTINGUISHER_NID);
+ if (distinguisher.isPresent()) {
+ nlriByteBuf.writeBytes(((String)distinguisher.get().getValue()).getBytes());
+ }
+ final Optional<DataContainerChild<? extends PathArgument, ?>> protocolId = linkstate.getChild(PROTOCOL_ID_NID);
+ // DOM representation contains values as are in the model, not as are in generated enum
+ nlriByteBuf.writeLong(domProtocolIdValue((String) protocolId.get().getValue()));
+ final Optional<DataContainerChild<? extends PathArgument, ?>> identifier = linkstate.getChild(IDENTIFIER_NID);
+ nlriByteBuf.writeLong(((BigInteger)identifier.get().getValue()).longValue());
+
+ // serialize node
+ final ByteBuf ldescs = Unpooled.buffer();
+ NlriType nlriType = null;
+ final ChoiceNode objectType = (ChoiceNode) linkstate.getChild(OBJECT_TYPE_NID).get();
+ if (objectType.getChild(ADVERTISING_NODE_DESCRIPTORS_NID).isPresent()) {
+
+ // prefix node descriptors
+ NodeNlriParser.serializeNodeDescriptors((ContainerNode)objectType.getChild(ADVERTISING_NODE_DESCRIPTORS_NID).get(), ldescs);
+ TlvUtil.writeTLV(LinkstateNlriParser.LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
+ final Optional<DataContainerChild<? extends PathArgument, ?>> prefixDescriptors = objectType.getChild(new NodeIdentifier(PrefixDescriptors.QNAME));
+
+ // prefix descriptors
+ if (prefixDescriptors.isPresent()) {
+ nlriType = PrefixNlriParser.serializePrefixDescriptors((ContainerNode)prefixDescriptors.get(), nlriByteBuf);
+ }
+ } else if (objectType.getChild(LOCAL_NODE_DESCRIPTORS_NID).isPresent()) {
+
+ // link local node descriptors
+ NodeNlriParser.serializeNodeDescriptors((ContainerNode)objectType.getChild(LOCAL_NODE_DESCRIPTORS_NID).get(), ldescs);
+ TlvUtil.writeTLV(LinkstateNlriParser.LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
+
+ // link remote node descriptors
+ final ByteBuf rdescs = Unpooled.buffer();
+ if (objectType.getChild(REMOTE_NODE_DESCRIPTORS_NID).isPresent()) {
+ NodeNlriParser.serializeNodeDescriptors((ContainerNode)objectType.getChild(REMOTE_NODE_DESCRIPTORS_NID).get(), rdescs);
+ TlvUtil.writeTLV(LinkstateNlriParser.REMOTE_NODE_DESCRIPTORS_TYPE, rdescs, nlriByteBuf);
+ }
+
+ // link descriptors
+ final Optional<DataContainerChild<? extends PathArgument, ?>> linkDescriptors = objectType.getChild(new NodeIdentifier(LinkDescriptors.QNAME));
+ if (linkDescriptors.isPresent()) {
+ LinkNlriParser.serializeLinkDescriptors((ContainerNode)linkDescriptors.get(), nlriByteBuf);
+ }
+ nlriType = NlriType.Link;
+ } else if (objectType.getChild(NODE_DESCRIPTORS_NID).isPresent()) {
+
+ // node descriptors
+ NodeNlriParser.serializeNodeDescriptors((ContainerNode)objectType.getChild(NODE_DESCRIPTORS_NID).get(), ldescs);
+ TlvUtil.writeTLV(LinkstateNlriParser.LOCAL_NODE_DESCRIPTORS_TYPE, ldescs, nlriByteBuf);
+ nlriType = NlriType.Node;
+ } else {
+ LOG.warn("Unknown Object Type.");
+ }
+ TlvUtil.writeTLV(nlriType.getIntValue(), nlriByteBuf, buffer);
+ }
}
Code Review / bgpcep.git / blobdiff