+++ /dev/null
-
-/*
- * Copyright (c) 2013-2014 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.HashMap;
-import java.util.LinkedHashMap;
-import java.util.Map;
-
-import org.apache.commons.lang3.tuple.ImmutablePair;
-import org.apache.commons.lang3.tuple.Pair;
-import org.opendaylight.controller.sal.utils.NetUtils;
-
-/**
- * Class that represents the ICMP packet objects
- */
-@Deprecated
-public class ICMP extends Packet {
- private static final String TYPE = "Type";
- private static final String CODE = "Code";
- private static final String CHECKSUM = "Checksum";
- private static final String IDENTIFIER = "Identifier";
- private static final String SEQNUMBER = "SequenceNumber";
-
- private static Map<String, Pair<Integer, Integer>> fieldCoordinates = new LinkedHashMap<String, Pair<Integer, Integer>>() {
- private static final long serialVersionUID = 1L;
- {
- put(TYPE, new ImmutablePair<Integer, Integer>(0, 8));
- put(CODE, new ImmutablePair<Integer, Integer>(8, 8));
- put(CHECKSUM, new ImmutablePair<Integer, Integer>(16, 16));
- put(IDENTIFIER, new ImmutablePair<Integer, Integer>(32, 16));
- put(SEQNUMBER, new ImmutablePair<Integer, Integer>(48, 16));
- }
- };
-
- /**
- * Default constructor that creates and sets the hash map values
- */
- public ICMP() {
- super();
- fieldValues = new HashMap<String, byte[]>();
- hdrFieldCoordMap = fieldCoordinates;
- hdrFieldsMap = fieldValues;
- }
-
- /**
- * Constructor that sets the access level for the packet
- */
- public ICMP(boolean writeAccess) {
- super(writeAccess);
- fieldValues = new HashMap<String, byte[]>();
- hdrFieldCoordMap = fieldCoordinates;
- hdrFieldsMap = fieldValues;
- }
-
- private final Map<String, byte[]> fieldValues;
-
- @Override
- public void setHeaderField(String headerField, byte[] readValue) {
- hdrFieldsMap.put(headerField, readValue);
- }
-
- /**
- * Sets the type for the current ICMP message
- *
- * @param type
- * The ICMP message type
- * @return This ICMP object
- */
- public ICMP setType(byte type) {
- byte[] icmpType = BitBufferHelper.toByteArray(type);
- fieldValues.put(TYPE, icmpType);
- return this;
- }
-
- /**
- * Returns the type field of the current ICMP packet
- *
- * @return The type code of the current ICMP packet
- */
- public byte getType() {
- return BitBufferHelper.getByte(fieldValues.get(TYPE));
- }
-
- /**
- * Sets the ICMP code (type subtype) for the current ICMP object instance
- *
- * @param code
- * The ICMP message type subtype
- * @return This ICMP object
- */
- public ICMP setCode(byte code) {
- byte[] icmpCode = BitBufferHelper.toByteArray(code);
- fieldValues.put(CODE, icmpCode);
- return this;
- }
-
- /**
- * Gets the ICMP code (type subtype) for the current ICMP object instance
- *
- * @return The ICMP message type subtype
- */
- public byte getCode() {
- return BitBufferHelper.getByte(fieldValues.get(CODE));
- }
-
- /**
- * Sets the ICMP checksum for the current ICMP object instance
- * @param short - checksum
- * @return ICMP
- */
- public ICMP setChecksum(short checksum) {
- byte[] icmpChecksum = BitBufferHelper.toByteArray(checksum);
- fieldValues.put(CHECKSUM, icmpChecksum);
- return this;
- }
-
- /**
- * Sets the ICMP identifier for the current ICMP object instance
- * @param short - identifier
- * @return ICMP
- */
- public ICMP setIdentifier(short identifier) {
- byte[] icmpIdentifier = BitBufferHelper.toByteArray(identifier);
- fieldValues.put(IDENTIFIER, icmpIdentifier);
- return this;
- }
-
- /**
- * Gets the ICMP identifier of the current ICMP object instance
- *
- * @return short - identifier
- */
-
- public short getIdentifier() {
- return BitBufferHelper.getShort(fieldValues.get(IDENTIFIER));
- }
-
- /**
- * Sets the ICMP sequence number for the current ICMP object instance
- * @param short - seqNumber
- * @return ICMP
- */
- public ICMP setSequenceNumber(short seqNumber) {
- byte[] icmpSeqNumber = BitBufferHelper.toByteArray(seqNumber);
- fieldValues.put(SEQNUMBER, icmpSeqNumber);
- return this;
- }
-
- /**
- * Gets the ICMP sequence number of the current ICMP object instance
- *
- * @return short - seqNumber
- */
-
- public short getSequenceNumber() {
- return BitBufferHelper.getShort(fieldValues.get(SEQNUMBER));
- }
-
- /**
- * Gets the header size in bits
- * @return The ICMP header size in bits
- */
- @Override
- public int getHeaderSize() {
- return 64;
- }
-
- /**
- * Computes the ICMP checksum on the serialized ICMP message
- *
- * @param serialized
- * The data stream
- * @param start
- * The byte index on the data stream from which the ICMP packet
- * starts
- * @return The checksum
- */
- short computeChecksum(byte[] data, int start) {
- int sum = 0, carry = 0, finalSum = 0;
- int wordData;
- int end = start + this.getHeaderSize() / NetUtils.NumBitsInAByte;
- if (rawPayload != null) {
- end += rawPayload.length;
- }
- int checksumStartByte = start + getfieldOffset(CHECKSUM) / NetUtils.NumBitsInAByte;
- int even = end & ~1;
-
- for (int i = start; i < even; i = i + 2) {
- // Skip, if the current bytes are checkSum bytes
- if (i == checksumStartByte) {
- continue;
- }
- wordData = ((data[i] << 8) & 0xFF00) + (data[i + 1] & 0xFF);
- sum = sum + wordData;
- }
- if (even < end) {
- // Add the last octet with zero padding.
- wordData = (data[even] << 8) & 0xFF00;
- sum = sum + wordData;
- }
-
- carry = sum >>> 16;
- finalSum = (sum & 0xFFFF) + carry;
- return (short) ~((short) finalSum & 0xFFFF);
- }
-
- @Override
- protected void postSerializeCustomOperation(byte[] serializedBytes)
- throws PacketException {
- byte[] checkSum = BitBufferHelper
- .toByteArray(computeChecksum(serializedBytes, 0));
- try {
- BitBufferHelper.setBytes(serializedBytes, checkSum,
- getfieldOffset(CHECKSUM), getfieldnumBits(CHECKSUM));
- } catch (BufferException e) {
- throw new PacketException(e.getMessage());
- }
- }
-
- @Override
- protected void postDeserializeCustomOperation(byte[] data, int endBitOffset) {
- short computedChecksum = computeChecksum(data, endBitOffset / NetUtils.NumBitsInAByte);
- short actualChecksum = BitBufferHelper.getShort(fieldValues.get(CHECKSUM));
-
- if (computedChecksum != actualChecksum) {
- corrupted = true;
- }
- }
-
- /**
- * Gets the checksum value stored
- * @return the checksum
- */
- public short getChecksum() {
- return (BitBufferHelper.getShort(fieldValues.get(CHECKSUM)));
- }
-}
Code Review / controller.git / blobdiff