+++ /dev/null
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-
-package org.opendaylight.controller.sal.packet;
-
-import java.util.ArrayList;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-
-import org.opendaylight.controller.sal.utils.HexEncode;
-import org.opendaylight.controller.sal.utils.NetUtils;
-
-/**
- * Class that represents the LLDP frame objects
- */
-
-public class LLDP extends Packet {
- private static final String CHASSISID = "ChassisId";
- private static final String SYSTEMNAMEID = "SystemNameID";
- private static final String PORTID = "PortId";
- private static final String TTL = "TTL";
- private static final int LLDPDefaultTlvs = 4;
- private static LLDPTLV emptyTLV = new LLDPTLV().setLength((short) 0)
- .setType((byte) 0);
- public static final byte[] LLDPMulticastMac = { 1, (byte) 0x80,
- (byte) 0xc2, 0, 0, (byte) 0xe };
- private Map<Byte, LLDPTLV> tlvList;
-
- /**
- * Default constructor that creates the tlvList LinkedHashMap
- */
- public LLDP() {
- super();
- tlvList = new LinkedHashMap<Byte, LLDPTLV>(LLDPDefaultTlvs);
- }
-
- /**
- * Constructor that creates the tlvList LinkedHashMap and sets the write
- * access for the same
- */
- public LLDP(boolean writeAccess) {
- super(writeAccess);
- tlvList = new LinkedHashMap<Byte, LLDPTLV>(LLDPDefaultTlvs); // Mandatory
- // TLVs
- }
-
- /**
- * @param String
- * - description of the type of TLV
- * @return byte - type of TLV
- */
- private byte getType(String typeDesc) {
- if (typeDesc.equals(CHASSISID)) {
- return LLDPTLV.TLVType.ChassisID.getValue();
- } else if (typeDesc.equals(PORTID)) {
- return LLDPTLV.TLVType.PortID.getValue();
- } else if (typeDesc.equals(TTL)) {
- return LLDPTLV.TLVType.TTL.getValue();
- } else {
- return LLDPTLV.TLVType.Unknown.getValue();
- }
- }
-
- /**
- * @param String
- * - description of the type of TLV
- * @return LLDPTLV - full TLV
- */
- public LLDPTLV getTLV(String type) {
- return tlvList.get(getType(type));
- }
-
- /**
- * @param String
- * - description of the type of TLV
- * @param LLDPTLV
- * - tlv to set
- * @return void
- */
- public void setTLV(String type, LLDPTLV tlv) {
- tlvList.put(getType(type), tlv);
- }
-
- /**
- * @return the chassisId TLV
- */
- public LLDPTLV getChassisId() {
- return getTLV(CHASSISID);
- }
-
- /**
- * @param LLDPTLV
- * - the chassisId to set
- */
- public LLDP setChassisId(LLDPTLV chassisId) {
- tlvList.put(getType(CHASSISID), chassisId);
- return this;
- }
-
- /**
- * @return the SystemName TLV
- */
- public LLDPTLV getSystemNameId() {
- return getTLV(SYSTEMNAMEID);
- }
-
- /**
- * @param LLDPTLV
- * - the chassisId to set
- */
- public LLDP setSystemNameId(LLDPTLV systemNameId) {
- tlvList.put(getType(SYSTEMNAMEID), systemNameId);
- return this;
- }
-
- /**
- * @return LLDPTLV - the portId TLV
- */
- public LLDPTLV getPortId() {
- return tlvList.get(getType(PORTID));
- }
-
- /**
- * @param LLDPTLV
- * - the portId to set
- * @return LLDP
- */
- public LLDP setPortId(LLDPTLV portId) {
- tlvList.put(getType(PORTID), portId);
- return this;
- }
-
- /**
- * @return LLDPTLV - the ttl TLV
- */
- public LLDPTLV getTtl() {
- return tlvList.get(getType(TTL));
- }
-
- /**
- * @param LLDPTLV
- * - the ttl to set
- * @return LLDP
- */
- public LLDP setTtl(LLDPTLV ttl) {
- tlvList.put(getType(TTL), ttl);
- return this;
- }
-
- /**
- * @return the optionalTLVList
- */
- public List<LLDPTLV> getOptionalTLVList() {
- List<LLDPTLV> list = new ArrayList<LLDPTLV>();
- for (Map.Entry<Byte, LLDPTLV> entry : tlvList.entrySet()) {
- byte type = entry.getKey();
- if ((type == LLDPTLV.TLVType.ChassisID.getValue())
- || (type == LLDPTLV.TLVType.PortID.getValue())
- || (type == LLDPTLV.TLVType.TTL.getValue())) {
- continue;
- } else {
- list.add(entry.getValue());
- }
- }
- return list;
- }
-
- /**
- * @param optionalTLVList
- * the optionalTLVList to set
- * @return LLDP
- */
- public LLDP setOptionalTLVList(List<LLDPTLV> optionalTLVList) {
- for (LLDPTLV tlv : optionalTLVList) {
- tlvList.put(tlv.getType(), tlv);
- }
- return this;
- }
-
- @Override
- public Packet deserialize(byte[] data, int bitOffset, int size)
- throws PacketException {
- int lldpOffset = bitOffset; // LLDP start
- int lldpSize = size; // LLDP size
-
- if (logger.isTraceEnabled()) {
- logger.trace("LLDP: {} (offset {} bitsize {})", new Object[] {
- HexEncode.bytesToHexString(data), lldpOffset, lldpSize });
- }
- /*
- * Deserialize the TLVs until we reach the end of the packet
- */
- while (lldpSize > 0) {
- LLDPTLV tlv = new LLDPTLV();
- tlv.deserialize(data, lldpOffset, lldpSize);
- if (tlv.getType() == 0 && tlv.getLength() == 0) {
- break;
- }
- int tlvSize = tlv.getTLVSize(); // Size of current TLV in bits
- lldpOffset += tlvSize;
- lldpSize -= tlvSize;
- this.tlvList.put(tlv.getType(), tlv);
- }
- return this;
- }
-
- @Override
- public byte[] serialize() throws PacketException {
- int startOffset = 0;
- byte[] serializedBytes = new byte[getLLDPPacketLength()];
-
- for (Map.Entry<Byte, LLDPTLV> entry : tlvList.entrySet()) {
- LLDPTLV tlv = entry.getValue();
- int numBits = tlv.getTLVSize();
- try {
- BitBufferHelper.setBytes(serializedBytes, tlv.serialize(),
- startOffset, numBits);
- } catch (BufferException e) {
- throw new PacketException(e.getMessage());
- }
- startOffset += numBits;
- }
- // Now add the empty LLDPTLV at the end
- try {
- BitBufferHelper.setBytes(serializedBytes,
- LLDP.emptyTLV.serialize(), startOffset,
- LLDP.emptyTLV.getTLVSize());
- } catch (BufferException e) {
- throw new PacketException(e.getMessage());
- }
-
- if (logger.isTraceEnabled()) {
- logger.trace("LLDP: serialized: {}",
- HexEncode.bytesToHexString(serializedBytes));
- }
- return serializedBytes;
- }
-
- /**
- * Returns the size of LLDP packet in bytes
- *
- * @return int - LLDP Packet size in bytes
- */
- private int getLLDPPacketLength() {
- int len = 0;
- LLDPTLV tlv;
-
- for (Map.Entry<Byte, LLDPTLV> entry : this.tlvList.entrySet()) {
- tlv = entry.getValue();
- len += tlv.getTLVSize();
- }
- len += LLDP.emptyTLV.getTLVSize();
-
- return len / NetUtils.NumBitsInAByte;
- }
-}
Code Review / controller.git / blobdiff