Implement NDP-related classes
* Resolve ONOS-511
* Refactor: Move NDP-related classes into org.onlab.packet.ndp package
* Bugfix: payload is not properly set in testSerialize
Change-Id: Idb2dbfbd0297152c0e26ac2d5d5f8dba62824660
diff --git a/utils/misc/src/main/java/org/onlab/packet/ndp/Redirect.java b/utils/misc/src/main/java/org/onlab/packet/ndp/Redirect.java
new file mode 100644
index 0000000..2c9450b
--- /dev/null
+++ b/utils/misc/src/main/java/org/onlab/packet/ndp/Redirect.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2014 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.onlab.packet.ndp;
+
+import org.onlab.packet.BasePacket;
+import org.onlab.packet.Data;
+import org.onlab.packet.IPacket;
+import org.onlab.packet.Ip6Address;
+
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+/**
+ * Implements ICMPv6 Redirect packet format. (RFC 4861)
+ */
+public class Redirect extends BasePacket {
+ public static final byte HEADER_LENGTH = 36; // bytes
+
+ protected byte[] targetAddress = new byte[Ip6Address.BYTE_LENGTH];
+ protected byte[] destinationAddress = new byte[Ip6Address.BYTE_LENGTH];
+
+ /**
+ * Gets target address.
+ *
+ * @return the target IPv6 address
+ */
+ public byte[] getTargetAddress() {
+ return this.targetAddress;
+ }
+
+ /**
+ * Sets target address.
+ *
+ * @param targetAddress the target IPv6 address to set
+ * @return this
+ */
+ public Redirect setTargetAddress(final byte[] targetAddress) {
+ this.targetAddress = Arrays.copyOfRange(targetAddress, 0, Ip6Address.BYTE_LENGTH);
+ return this;
+ }
+
+ /**
+ * Gets destination address.
+ *
+ * @return the destination IPv6 address
+ */
+ public byte[] getDestinationAddress() {
+ return this.destinationAddress;
+ }
+
+ /**
+ * Sets destination address.
+ *
+ * @param destinationAddress the destination IPv6 address to set
+ * @return this
+ */
+ public Redirect setDestinationAddress(final byte[] destinationAddress) {
+ this.destinationAddress = Arrays.copyOfRange(destinationAddress, 0, Ip6Address.BYTE_LENGTH);
+ return this;
+ }
+
+ @Override
+ public byte[] serialize() {
+ byte[] payloadData = null;
+ if (this.payload != null) {
+ this.payload.setParent(this);
+ payloadData = this.payload.serialize();
+ }
+
+ int payloadLength = payloadData == null ? 0 : (short) payloadData.length;
+
+ final byte[] data = new byte[HEADER_LENGTH + payloadLength];
+ final ByteBuffer bb = ByteBuffer.wrap(data);
+
+ bb.putInt(0);
+ bb.put(this.targetAddress, 0, Ip6Address.BYTE_LENGTH);
+ bb.put(this.destinationAddress, 0, Ip6Address.BYTE_LENGTH);
+
+ if (payloadData != null) {
+ bb.put(payloadData);
+ }
+
+ return data;
+ }
+
+ @Override
+ public IPacket deserialize(byte[] data, int offset, int length) {
+ final ByteBuffer bb = ByteBuffer.wrap(data, offset, length);
+
+ bb.getInt();
+ bb.get(this.targetAddress, 0, Ip6Address.BYTE_LENGTH);
+ bb.get(this.destinationAddress, 0, Ip6Address.BYTE_LENGTH);
+
+ this.payload = new Data();
+ this.payload = this.payload.deserialize(data, bb.position(), bb.limit()
+ - bb.position());
+ this.payload.setParent(this);
+
+ return this;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.lang.Object#hashCode()
+ */
+ @Override
+ public int hashCode() {
+ final int prime = 5807;
+ int result = super.hashCode();
+ ByteBuffer bb;
+ bb = ByteBuffer.wrap(this.targetAddress);
+ for (int i = 0; i < 4; i++) {
+ result = prime * result + bb.getInt();
+ }
+ bb = ByteBuffer.wrap(this.destinationAddress);
+ for (int i = 0; i < 4; i++) {
+ result = prime * result + bb.getInt();
+ }
+ return result;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.lang.Object#equals(java.lang.Object)
+ */
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!super.equals(obj)) {
+ return false;
+ }
+ if (!(obj instanceof Redirect)) {
+ return false;
+ }
+ final Redirect other = (Redirect) obj;
+ if (!Arrays.equals(this.targetAddress, other.targetAddress)) {
+ return false;
+ }
+ if (!Arrays.equals(this.destinationAddress, other.destinationAddress)) {
+ return false;
+ }
+ return true;
+ }
+}