[ONOS-2602]Implement Link NLRI
Change-Id: Ia17868c0a2f701a88d82171943c52fe7b7880fba
diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java
index 1445c76..dab7a3d 100644
--- a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/BgpLinkLsNlri.java
@@ -29,19 +29,19 @@
*
* @return local node descriptors
*/
- NodeDescriptors getLocalNodeDescriptors();
+ NodeDescriptors localNodeDescriptors();
/**
* Returns remote node descriptors.
*
* @return remote node descriptors
*/
- NodeDescriptors getRemoteNodeDescriptors();
+ NodeDescriptors remoteNodeDescriptors();
/**
* Returns link descriptors.
*
* @return link descriptors
*/
- List<BGPValueType> getLinkDescriptors();
+ List<BGPValueType> linkDescriptors();
}
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diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java
new file mode 100755
index 0000000..6455945
--- /dev/null
+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/protocol/linkstate/BgpLinkLsNlriVer4.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.bgpio.protocol.linkstate;
+
+import java.util.List;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.onosproject.bgpio.protocol.BgpLinkLsNlri;
+import org.onosproject.bgpio.protocol.NlriType;
+import org.onosproject.bgpio.protocol.linkstate.BGPNodeLSNlriVer4.PROTOCOLTYPE;
+import org.onosproject.bgpio.types.BGPErrorType;
+import org.onosproject.bgpio.types.BGPValueType;
+import org.onosproject.bgpio.types.RouteDistinguisher;
+import org.onosproject.bgpio.util.Constants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Implementation of Link LS NLRI.
+ */
+public class BgpLinkLsNlriVer4 implements BgpLinkLsNlri {
+
+ /*
+ * REFERENCE : draft-ietf-idr-ls-distribution-11
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+
+ | Protocol-ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Identifier |
+ | (64 bits) |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Local Node Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Remote Node Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ // Link Descriptors (variable) //
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Figure : The Link NLRI format
+ */
+ private static final Logger log = LoggerFactory.getLogger(BgpLinkLsNlriVer4.class);
+ public static final int LINK_NLRITYPE = 2;
+
+ private BGPLinkLSIdentifier linkLSIdentifier;
+ private byte protocolId;
+ private long identifier;
+ private RouteDistinguisher routeDistinguisher;
+ private boolean isVpn;
+
+ /**
+ * Initialize fields.
+ */
+ public BgpLinkLsNlriVer4() {
+ this.protocolId = 0;
+ this.identifier = 0;
+ this.linkLSIdentifier = null;
+ this.routeDistinguisher = null;
+ this.isVpn = false;
+ }
+
+ /**
+ * Constructor to initialize parameters for BGP LinkLSNlri.
+ *
+ * @param protocolId protocol Id
+ * @param identifier field in BGP LinkLSNlri
+ * @param linkLSIdentifier link LS identifier
+ * @param routeDistinguisher route distinguisher from message
+ * @param isVpn vpn info availability in message
+ */
+ public BgpLinkLsNlriVer4(byte protocolId, long identifier, BGPLinkLSIdentifier linkLSIdentifier,
+ RouteDistinguisher routeDistinguisher, boolean isVpn) {
+ this.protocolId = protocolId;
+ this.identifier = identifier;
+ this.linkLSIdentifier = linkLSIdentifier;
+ this.routeDistinguisher = routeDistinguisher;
+ this.isVpn = isVpn;
+ }
+
+ /**
+ * Reads from channelBuffer and parses Link LS Nlri.
+ *
+ * @param cb ChannelBuffer
+ * @param afi Address Family Identifier
+ * @param safi Subsequent Address Family Identifier
+ * @return object of this class
+ * @throws BGPParseException while parsing Link LS NLRI
+ */
+ public static BgpLinkLsNlriVer4 read(ChannelBuffer cb, short afi, byte safi) throws BGPParseException {
+ boolean isVpn = false;
+ RouteDistinguisher routeDistinguisher = null;
+ if ((afi == Constants.AFI_VALUE) && (safi == Constants.VPN_SAFI_VALUE)) {
+ routeDistinguisher = new RouteDistinguisher();
+ routeDistinguisher = RouteDistinguisher.read(cb);
+ isVpn = true;
+ } else {
+ isVpn = false;
+ }
+ byte protocolId = cb.readByte();
+ long identifier = cb.readLong();
+
+ BGPLinkLSIdentifier linkLSIdentifier = new BGPLinkLSIdentifier();
+ linkLSIdentifier = BGPLinkLSIdentifier.parseLinkIdendifier(cb, protocolId);
+ return new BgpLinkLsNlriVer4(protocolId, identifier, linkLSIdentifier, routeDistinguisher, isVpn);
+ }
+
+ @Override
+ public NlriType getNlriType() {
+ return NlriType.LINK;
+ }
+
+ @Override
+ public long getIdentifier() {
+ return this.identifier;
+ }
+
+ /**
+ * Set the link LS identifier.
+ *
+ * @param linkLSIdentifier link LS identifier to set
+ */
+ public void setLinkLSIdentifier(BGPLinkLSIdentifier linkLSIdentifier) {
+ this.linkLSIdentifier = linkLSIdentifier;
+ }
+
+ @Override
+ public PROTOCOLTYPE getProtocolId() throws BGPParseException {
+ switch (protocolId) {
+ case Constants.ISIS_LEVELONE:
+ return PROTOCOLTYPE.ISIS_LevelOne;
+ case Constants.ISIS_LEVELTWO:
+ return PROTOCOLTYPE.ISIS_LevelTwo;
+ case Constants.OSPFV2:
+ return PROTOCOLTYPE.OSPFv2;
+ case Constants.DIRECT:
+ return PROTOCOLTYPE.Direct;
+ case Constants.STATIC_CONFIGURATION:
+ return PROTOCOLTYPE.Static_Configuration;
+ case Constants.OSPFV3:
+ return PROTOCOLTYPE.OSPFv3;
+ default:
+ throw new BGPParseException(BGPErrorType.UPDATE_MESSAGE_ERROR, (byte) 0, null);
+ }
+ }
+
+ @Override
+ public NodeDescriptors localNodeDescriptors() {
+ return this.linkLSIdentifier.localNodeDescriptors();
+ }
+
+ @Override
+ public NodeDescriptors remoteNodeDescriptors() {
+ return this.linkLSIdentifier.remoteNodeDescriptors();
+ }
+
+ /**
+ * Returns whether VPN is present or not.
+ *
+ * @return whether VPN is present or not
+ */
+ public boolean isVpnPresent() {
+ return this.isVpn;
+ }
+
+ @Override
+ public RouteDistinguisher getRouteDistinguisher() {
+ return this.routeDistinguisher;
+ }
+
+ /**
+ * Returns link identifier.
+ *
+ * @return link identifier
+ */
+ public BGPLinkLSIdentifier getLinkIdentifier() {
+ return this.linkLSIdentifier;
+ }
+
+ @Override
+ public List<BGPValueType> linkDescriptors() {
+ return this.linkLSIdentifier.linkDescriptors();
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .omitNullValues()
+ .add("protocolId", protocolId)
+ .add("identifier", identifier)
+ .add("RouteDistinguisher ", routeDistinguisher)
+ .add("linkLSIdentifier", linkLSIdentifier)
+ .toString();
+ }
+}
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