ONOS-2739 - OSPF Basic Packet Structures , which includes encoding and decoding
Change-Id: Ifaaa4d3640c6a4fec4931db54a1f03100cc9d9e6
diff --git a/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageReader.java b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageReader.java
new file mode 100644
index 0000000..4f26617
--- /dev/null
+++ b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageReader.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2016 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.ospf.protocol.ospfpacket;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.ospf.exceptions.OspfErrorType;
+import org.onosproject.ospf.exceptions.OspfParseException;
+import org.onosproject.ospf.protocol.ospfpacket.types.DdPacket;
+import org.onosproject.ospf.protocol.ospfpacket.types.HelloPacket;
+import org.onosproject.ospf.protocol.ospfpacket.types.LsAcknowledge;
+import org.onosproject.ospf.protocol.ospfpacket.types.LsRequest;
+import org.onosproject.ospf.protocol.ospfpacket.types.LsUpdate;
+import org.onosproject.ospf.protocol.util.OspfParameters;
+import org.onosproject.ospf.protocol.util.OspfUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A message reader which reads OSPF messages from ChannelBuffer and converts to OspfMessage instances.
+ */
+public class OspfMessageReader {
+ private static final Logger log = LoggerFactory.getLogger(OspfMessageReader.class);
+
+ /**
+ * Reads and Converts the channel buffer to OspfMessage instance.
+ *
+ * @param channelBuffer channel buffer instance.
+ * @return OSPF message instance.
+ * @throws Exception might throws exception while parsing buffer
+ */
+ public OspfMessage readFromBuffer(ChannelBuffer channelBuffer)
+ throws Exception {
+
+ if (channelBuffer.readableBytes() < OspfUtil.PACKET_MINIMUM_LENGTH) {
+ log.error("Packet should have minimum length...");
+ throw new OspfParseException(OspfErrorType.MESSAGE_HEADER_ERROR, OspfErrorType.BAD_MESSAGE_LENGTH);
+ }
+
+ try {
+ OspfPacketHeader ospfHeader = getOspfHeader(channelBuffer);
+ int len = ospfHeader.ospfPacLength() - OspfUtil.OSPF_HEADER_LENGTH;
+
+ OspfMessage ospfMessage = null;
+ switch (ospfHeader.ospfType()) {
+ case OspfParameters.HELLO:
+ ospfMessage = new HelloPacket(ospfHeader);
+ break;
+ case OspfParameters.DD:
+ ospfMessage = new DdPacket(ospfHeader);
+ break;
+ case OspfParameters.LSREQUEST:
+ ospfMessage = new LsRequest(ospfHeader);
+ break;
+ case OspfParameters.LSUPDATE:
+ ospfMessage = new LsUpdate(ospfHeader);
+ break;
+ case OspfParameters.LSACK:
+ ospfMessage = new LsAcknowledge(ospfHeader);
+ break;
+ default:
+ log.debug("Message Reader[Decoder] - Unknown LSA type..!!!");
+ break;
+ }
+
+ if (ospfMessage != null) {
+ try {
+ log.debug("{} Received::Message Length :: {} ", ospfMessage.ospfMessageType(),
+ ospfHeader.ospfPacLength());
+ ospfMessage.readFrom(channelBuffer.readBytes(len));
+ } catch (Exception e) {
+ throw new OspfParseException(OspfErrorType.OSPF_MESSAGE_ERROR,
+ OspfErrorType.BAD_MESSAGE);
+ }
+
+ }
+
+ return ospfMessage;
+ } catch (Exception e) {
+ throw new OspfParseException(OspfErrorType.OSPF_MESSAGE_ERROR,
+ OspfErrorType.BAD_MESSAGE);
+ }
+ }
+
+ /**
+ * Gets the OSPF packet Header.
+ *
+ * @param channelBuffer channel buffer instance.
+ * @return Ospf Header instance.
+ */
+ private OspfPacketHeader getOspfHeader(ChannelBuffer channelBuffer) throws Exception {
+ OspfPacketHeader ospfPacketHeader = new OspfPacketHeader();
+
+ byte[] sourceIpBytes = new byte[OspfUtil.FOUR_BYTES];
+ channelBuffer.readBytes(sourceIpBytes, 0, OspfUtil.FOUR_BYTES);
+ Ip4Address sourceIP = Ip4Address.valueOf(sourceIpBytes);
+
+ // Determine ospf version & Packet Type
+ int version = channelBuffer.readByte(); //byte 1 is ospf version
+ int packetType = channelBuffer.readByte(); //byte 2 is ospf packet type
+
+ // byte 3 & 4 combine is packet length.
+ int packetLength = channelBuffer.readShort();
+
+ if (packetLength > channelBuffer.readableBytes() + OspfUtil.FOUR_BYTES) {
+ log.error("Packet should have minimum length...");
+ throw new OspfParseException(OspfErrorType.MESSAGE_HEADER_ERROR, OspfErrorType.BAD_MESSAGE_LENGTH);
+ }
+
+ byte[] tempByteArray = new byte[OspfUtil.FOUR_BYTES];
+ channelBuffer.readBytes(tempByteArray, 0, OspfUtil.FOUR_BYTES);
+ Ip4Address routerId = Ip4Address.valueOf(tempByteArray);
+
+ tempByteArray = new byte[OspfUtil.FOUR_BYTES];
+ channelBuffer.readBytes(tempByteArray, 0, OspfUtil.FOUR_BYTES);
+ Ip4Address areaId = Ip4Address.valueOf(tempByteArray);
+
+ int checkSum = channelBuffer.readUnsignedShort();
+ int auType = channelBuffer.readUnsignedShort();
+ int authentication = (int) channelBuffer.readLong();
+
+ ospfPacketHeader.setSourceIp(sourceIP);
+ ospfPacketHeader.setOspfVer(version);
+ ospfPacketHeader.setOspftype(packetType);
+ ospfPacketHeader.setOspfPacLength(packetLength);
+ ospfPacketHeader.setRouterId(routerId);
+ ospfPacketHeader.setAreaId(areaId);
+ ospfPacketHeader.setChecksum(checkSum);
+ ospfPacketHeader.setAuthType(auType);
+ ospfPacketHeader.setAuthentication(authentication);
+
+ return ospfPacketHeader;
+ }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageWriter.java b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageWriter.java
new file mode 100644
index 0000000..9782194
--- /dev/null
+++ b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/OspfMessageWriter.java
@@ -0,0 +1,91 @@
+/*
+* Copyright 2016 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.ospf.protocol.ospfpacket;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.onosproject.ospf.protocol.util.OspfParameters;
+import org.onosproject.ospf.protocol.util.OspfUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * A message writer which writes an OspfMessage to ChannelBuffer.
+ */
+public class OspfMessageWriter {
+ private static final Logger log = LoggerFactory.getLogger(OspfMessageWriter.class);
+
+ /**
+ * Writes OSPF message to ChannelBuffer.
+ *
+ * @param ospfMessage OSPF message
+ * @param interfaceState interface state
+ * @param interfaceType interface type
+ * @return channelBuffer channel buffer instance
+ * @throws Exception might throws exception while parsing message
+ */
+ public ChannelBuffer writeToBuffer(OspfMessage ospfMessage, int interfaceState,
+ int interfaceType) throws Exception {
+
+ ChannelBuffer buf = null;
+ switch (ospfMessage.ospfMessageType().value()) {
+ case OspfParameters.HELLO:
+ case OspfParameters.LSACK:
+ buf = writeMessageToBuffer(ospfMessage, interfaceState);
+ break;
+ case OspfParameters.DD:
+ case OspfParameters.LSREQUEST:
+ case OspfParameters.LSUPDATE:
+ buf = writeMessageToBuffer(ospfMessage, interfaceState);
+ break;
+ default:
+ log.debug("Message Writer[Encoder] - Unknown Message to encode..!!!");
+ break;
+ }
+
+ return buf;
+ }
+
+ /**
+ * Writes an OSPF Message to channel buffer.
+ *
+ * @param ospfMessage OSPF Message instance
+ * @param interfaceState interface state
+ * @return channelBuffer instance
+ */
+ private ChannelBuffer writeMessageToBuffer(OspfMessage ospfMessage, int interfaceState) throws Exception {
+ ChannelBuffer channelBuffer = null;
+ byte[] ospfMessageAsByte = ospfMessage.asBytes();
+ //Add the length and checksum in byte array at length position 2 & 3 and Checksum position
+ ospfMessageAsByte = OspfUtil.addLengthAndCheckSum(ospfMessageAsByte, OspfUtil.OSPFPACKET_LENGTH_POS1,
+ OspfUtil.OSPFPACKET_LENGTH_POS2,
+ OspfUtil.OSPFPACKET_CHECKSUM_POS1,
+ OspfUtil.OSPFPACKET_CHECKSUM_POS2);
+ //Add Interface State Info and destination IP as metadata
+ if (interfaceState == OspfParameters.DR || interfaceState == OspfParameters.BDR) {
+ ospfMessageAsByte = OspfUtil.addMetadata(ospfMessageAsByte, OspfUtil.JOIN_ALL_DROUTERS,
+ ospfMessage.destinationIp());
+ } else {
+ ospfMessageAsByte = OspfUtil.addMetadata(ospfMessageAsByte, OspfUtil.ONLY_ALL_SPF_ROUTERS,
+ ospfMessage.destinationIp());
+ }
+
+ channelBuffer = ChannelBuffers.buffer(ospfMessageAsByte.length);
+ channelBuffer.writeBytes(ospfMessageAsByte);
+
+ return channelBuffer;
+ }
+}
\ No newline at end of file
diff --git a/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdate.java b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdate.java
new file mode 100644
index 0000000..e9c80e2
--- /dev/null
+++ b/protocols/ospf/protocol/src/main/java/org/onosproject/ospf/protocol/ospfpacket/types/LsUpdate.java
@@ -0,0 +1,310 @@
+/*
+ * Copyright 2016 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.ospf.protocol.ospfpacket.types;
+
+import com.google.common.base.MoreObjects;
+import com.google.common.primitives.Bytes;
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.onosproject.ospf.controller.OspfLsa;
+import org.onosproject.ospf.exceptions.OspfErrorType;
+import org.onosproject.ospf.exceptions.OspfParseException;
+import org.onosproject.ospf.protocol.lsa.LsaHeader;
+import org.onosproject.ospf.protocol.lsa.OpaqueLsaHeader;
+import org.onosproject.ospf.protocol.lsa.types.AsbrSummaryLsa;
+import org.onosproject.ospf.protocol.lsa.types.ExternalLsa;
+import org.onosproject.ospf.protocol.lsa.types.NetworkLsa;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa10;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa11;
+import org.onosproject.ospf.protocol.lsa.types.OpaqueLsa9;
+import org.onosproject.ospf.protocol.lsa.types.RouterLsa;
+import org.onosproject.ospf.protocol.lsa.types.SummaryLsa;
+import org.onosproject.ospf.protocol.ospfpacket.OspfPacketHeader;
+import org.onosproject.ospf.protocol.util.OspfPacketType;
+import org.onosproject.ospf.protocol.util.OspfParameters;
+import org.onosproject.ospf.protocol.util.OspfUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+/**
+ * Representation of an OSPF Link State Update packet.
+ * Link State Update packets are OSPF packet type 4. These packets
+ * implement the flooding of LSAs. Each Link State Update packet
+ * carries a collection of LSAs one hop further from their origin.
+ * Several LSAs may be included in a single packet.
+ */
+public class LsUpdate extends OspfPacketHeader {
+ /*
+ 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
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Version # | 4 | Packet length |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Router ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Area ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Checksum | AuType |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Authentication |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Authentication |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | # LSAs |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ +- +-+
+ | LSAs |
+ +- +-+
+ | ... |
+ */
+ private static final Logger log = LoggerFactory.getLogger(LsUpdate.class);
+ private int numberOfLsa;
+ private List<OspfLsa> lsaList = new LinkedList<>();
+
+ /**
+ * Creates an instance of Link State Update packet.
+ */
+ public LsUpdate() {
+ }
+
+ /**
+ * Creates an instance of Link State Update packet.
+ *
+ * @param ospfHeader ospf header instance.
+ */
+ public LsUpdate(OspfPacketHeader ospfHeader) {
+ populateHeader(ospfHeader);
+ }
+
+ /**
+ * Gets the LSA list.
+ *
+ * @return list of LSA
+ */
+ public List getLsaList() {
+ return lsaList;
+ }
+
+ /**
+ * Adds the LSA to list.
+ *
+ * @param lsa LSA
+ */
+ public void addLsa(OspfLsa lsa) {
+ if (!lsaList.contains(lsa)) {
+ lsaList.add(lsa);
+ }
+ }
+
+ /**
+ * Gets the number of LSA.
+ *
+ * @return number of LSA
+ */
+ public int noLsa() {
+ return numberOfLsa;
+ }
+
+ /**
+ * Sets number of LSA.
+ *
+ * @param numberOfLsa number of LSA
+ */
+ public void setNumberOfLsa(int numberOfLsa) {
+ this.numberOfLsa = numberOfLsa;
+ }
+
+
+ @Override
+ public OspfPacketType ospfMessageType() {
+ return OspfPacketType.LSUPDATE;
+ }
+
+ @Override
+ public void readFrom(ChannelBuffer channelBuffer) throws OspfParseException {
+ try {
+ //From header 4 bytes is number of lsa's
+ this.setNumberOfLsa(channelBuffer.readInt());
+ //get the remaining bytes represents Number of LSA's present. Add all the LSA's
+ while (channelBuffer.readableBytes() > OspfUtil.LSA_HEADER_LENGTH) {
+
+ LsaHeader header = OspfUtil.readLsaHeader(channelBuffer.readBytes(OspfUtil.LSA_HEADER_LENGTH));
+ int lsaLength = header.lsPacketLen();
+ int lsType = header.lsType();
+
+ switch (lsType) {
+ case OspfParameters.LINK_LOCAL_OPAQUE_LSA:
+ OpaqueLsa9 opaqueLsa9 = new OpaqueLsa9((OpaqueLsaHeader) header);
+ opaqueLsa9.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(opaqueLsa9);
+ break;
+ case OspfParameters.AREA_LOCAL_OPAQUE_LSA:
+ OpaqueLsa10 opaqueLsa10 = new OpaqueLsa10((OpaqueLsaHeader) header);
+ opaqueLsa10.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(opaqueLsa10);
+ break;
+ case OspfParameters.AS_OPAQUE_LSA:
+ OpaqueLsa11 opaqueLsa11 = new OpaqueLsa11((OpaqueLsaHeader) header);
+ opaqueLsa11.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(opaqueLsa11);
+ break;
+ case OspfParameters.ROUTER:
+ RouterLsa routerLsa = new RouterLsa(header);
+ routerLsa.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(routerLsa);
+ break;
+ case OspfParameters.NETWORK:
+ NetworkLsa networkLsa = new NetworkLsa(header);
+ networkLsa.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(networkLsa);
+ break;
+ case OspfParameters.ASBR_SUMMARY:
+ AsbrSummaryLsa asbrSummaryLsa = new AsbrSummaryLsa(header);
+ asbrSummaryLsa.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(asbrSummaryLsa);
+ break;
+ case OspfParameters.SUMMARY:
+ SummaryLsa summaryLSA = new SummaryLsa(header);
+ summaryLSA.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(summaryLSA);
+ break;
+ case OspfParameters.EXTERNAL_LSA:
+ ExternalLsa externalLsa = new ExternalLsa(header);
+ externalLsa.readFrom(channelBuffer.readBytes(lsaLength - OspfUtil.LSA_HEADER_LENGTH));
+ addLsa(externalLsa);
+ break;
+ default:
+ log.debug("LSUpdate::readLsUpdateBody::UnKnown LS Type: {}", lsType);
+ break;
+ }
+ }
+ } catch (Exception e) {
+ log.debug("Error::LsUpdate:: {}", e.getMessage());
+ throw new OspfParseException(OspfErrorType.MESSAGE_HEADER_ERROR, OspfErrorType.BAD_MESSAGE_LENGTH);
+ }
+ }
+
+ @Override
+ public byte[] asBytes() {
+ byte[] lsuMessage = null;
+
+ byte[] ospfHeader = getLsuHeaderAsByteArray();
+ byte[] lsuBody = getLsuBodyAsByteArray();
+ lsuMessage = Bytes.concat(ospfHeader, lsuBody);
+
+ return lsuMessage;
+ }
+
+ /**
+ * Gets lsu header.
+ *
+ * @return lsu header as byte array
+ */
+ public byte[] getLsuHeaderAsByteArray() {
+ List<Byte> headerLst = new ArrayList<>();
+ try {
+ headerLst.add((byte) this.ospfVersion());
+ headerLst.add((byte) this.ospfType());
+ headerLst.addAll(Bytes.asList(OspfUtil.convertToTwoBytes(this.ospfPacLength())));
+ headerLst.addAll(Bytes.asList(this.routerId().toOctets()));
+ headerLst.addAll(Bytes.asList(this.areaId().toOctets()));
+ headerLst.addAll(Bytes.asList(OspfUtil.convertToTwoBytes(this.checksum())));
+ headerLst.addAll(Bytes.asList(OspfUtil.convertToTwoBytes(this.authType())));
+ //Authentication is 0 always. Total 8 bytes consist of zero
+ byte[] auth = new byte[OspfUtil.EIGHT_BYTES];
+ headerLst.addAll(Bytes.asList(auth));
+ } catch (Exception e) {
+ log.debug("Error::LSUpdate::getLsuHeaderAsByteArray:: {}", e.getMessage());
+ return Bytes.toArray(headerLst);
+ }
+
+ return Bytes.toArray(headerLst);
+ }
+
+ /**
+ * Get lsu body as byte array.
+ *
+ * @return lsu body as byte array
+ */
+ public byte[] getLsuBodyAsByteArray() {
+ List<Byte> bodyLst = new ArrayList<>();
+
+ try {
+ //add number of LSA's
+ bodyLst.addAll(Bytes.asList(OspfUtil.convertToFourBytes(this.noLsa())));
+ //for each type of LSA's from the list get lsa bytes
+ for (OspfLsa ospfLsa : lsaList) {
+ //Check the type of lsa and build bytes accordingly
+ switch (ospfLsa.getOspfLsaType().value()) {
+ case OspfParameters.LINK_LOCAL_OPAQUE_LSA:
+ OpaqueLsa9 opaqueLsa9 = (OpaqueLsa9) ospfLsa;
+ bodyLst.addAll(Bytes.asList(opaqueLsa9.asBytes()));
+ break;
+ case OspfParameters.AREA_LOCAL_OPAQUE_LSA:
+ OpaqueLsa10 opaqueLsa10 = (OpaqueLsa10) ospfLsa;
+ bodyLst.addAll(Bytes.asList(opaqueLsa10.asBytes()));
+ break;
+ case OspfParameters.AS_OPAQUE_LSA:
+ OpaqueLsa11 opaqueLsa11 = (OpaqueLsa11) ospfLsa;
+ bodyLst.addAll(Bytes.asList(opaqueLsa11.asBytes()));
+ break;
+ case OspfParameters.ROUTER:
+ RouterLsa routerLsa = (RouterLsa) ospfLsa;
+ bodyLst.addAll(Bytes.asList(routerLsa.asBytes()));
+ break;
+ case OspfParameters.NETWORK:
+ NetworkLsa networkLsa = (NetworkLsa) ospfLsa;
+ bodyLst.addAll(Bytes.asList(networkLsa.asBytes()));
+ break;
+ case OspfParameters.ASBR_SUMMARY:
+ AsbrSummaryLsa asbrSummaryLsa = (AsbrSummaryLsa) ospfLsa;
+ bodyLst.addAll(Bytes.asList(asbrSummaryLsa.asBytes()));
+ break;
+ case OspfParameters.SUMMARY:
+ SummaryLsa summaryLsa = (SummaryLsa) ospfLsa;
+ bodyLst.addAll(Bytes.asList(summaryLsa.asBytes()));
+ break;
+ case OspfParameters.EXTERNAL_LSA:
+ ExternalLsa externalLsa = (ExternalLsa) ospfLsa;
+ bodyLst.addAll(Bytes.asList(externalLsa.asBytes()));
+ break;
+ default:
+ log.debug("LSUpdate::getLsuBodyAsByteArray::UnKnown ospfLsa: {}", ospfLsa);
+ break;
+ }
+ }
+
+ } catch (Exception e) {
+ log.debug("Error::getLsuBodyAsByteArray {}", e.getMessage());
+ return Bytes.toArray(bodyLst);
+ }
+
+ return Bytes.toArray(bodyLst);
+ }
+
+ @Override
+ public String toString() {
+ return MoreObjects.toStringHelper(getClass())
+ .omitNullValues()
+ .add("noLsa", numberOfLsa)
+ .add("lsaList", lsaList)
+ .toString();
+ }
+}
\ No newline at end of file