ONOS-508: Implement IPv6, ICMP6 and NeighborAdvertisement class
Create ICMP6 class, which is mostly like ICMP
Change-Id: I11d7abec4a8f1fd202e5dfb0a500f621773c2c3a
Create IPv6 class, which is mostly like IPv4
Change-Id: I7a301a0f94263df5d6d30f73050332ec7acfe611
Register handler class of IPv6 to Ethernet
Change-Id: Iccdef1680664520f9d66360a289809710982ce54
Fix FIXED_HEADER_LENGTH
Change-Id: Iff4fb22638416595f2865ff46b682a0579ba33d5
Fix payloadLength
Change-Id: I8dea4dd52f0bb5926fbff0d9e74fdd19404cabff
Add unittest for serialize
Change-Id: If194aa2530ce517a33b36b97b8478b0a4c463954
Add unittest for deserialize. Fix assertArrayEquals. Refine test structure.
Change-Id: I94f2a348b2be2f5907d8bac6b9029b37eb31456d
Payload length should be handled during serializing/deserializing procedure
Change-Id: Ib079bf939a01a38356c824ed972793293ed8ca1e
Add unittest for comparator
Change-Id: I937dd9330d7c23a81ecd8434ac0fcf7345cc5c00
Fix typo. Fix checkstyle error
Change-Id: I2fe1af81c65416b0fddaa0fb9ae206b87b889628
Add implementation and unittest for NeighborAdvertisement
Change-Id: I7610462a5712f9fee5be0416c08e1de302e0780d
Register handler class of NeighborAdvertisement to ICMP6
Change-Id: I3a7a9cf044cfdcd8908579942c159c2f0aad198d
diff --git a/utils/misc/src/main/java/org/onlab/packet/ICMP6.java b/utils/misc/src/main/java/org/onlab/packet/ICMP6.java
new file mode 100644
index 0000000..6d2455a
--- /dev/null
+++ b/utils/misc/src/main/java/org/onlab/packet/ICMP6.java
@@ -0,0 +1,219 @@
+/*
+ * 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;
+
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Implements ICMPv6 packet format.
+ *
+ */
+public class ICMP6 extends BasePacket {
+ public static final byte HEADER_LENGTH = 4; // bytes
+
+ public static final byte ROUTER_SOLICITATION = (byte) 0x85;
+ public static final byte ROUTER_ADVERTISEMENT = (byte) 0x86;
+ public static final byte NEIGHBOR_SOLICITATION = (byte) 0x87;
+ public static final byte NEIGHBOR_ADVERTISEMENT = (byte) 0x88;
+ public static final Map<Byte, Class<? extends IPacket>> PROTOCOL_CLASS_MAP =
+ new HashMap<>();
+
+ static {
+ ICMP6.PROTOCOL_CLASS_MAP.put(ICMP6.NEIGHBOR_ADVERTISEMENT, NeighborAdvertisement.class);
+ }
+
+ protected byte icmpType;
+ protected byte icmpCode;
+ protected short checksum;
+
+ /**
+ * @return the icmpType
+ */
+ public byte getIcmpType() {
+ return this.icmpType;
+ }
+
+ /**
+ * @param icmpType
+ * to set
+ * @return this
+ */
+ public ICMP6 setIcmpType(final byte icmpType) {
+ this.icmpType = icmpType;
+ return this;
+ }
+
+ /**
+ * @return the icmp code
+ */
+ public byte getIcmpCode() {
+ return this.icmpCode;
+ }
+
+ /**
+ * @param icmpCode
+ * code to set
+ * @return this
+ */
+ public ICMP6 setIcmpCode(final byte icmpCode) {
+ this.icmpCode = icmpCode;
+ return this;
+ }
+
+ /**
+ * @return the checksum
+ */
+ public short getChecksum() {
+ return this.checksum;
+ }
+
+ /**
+ * @param checksum
+ * the checksum to set
+ * @return this
+ */
+ public ICMP6 setChecksum(final short checksum) {
+ this.checksum = checksum;
+ return this;
+ }
+
+ /**
+ * Serializes the packet. Will compute and set the following fields if they
+ * are set to specific values at the time serialize is called: -checksum : 0
+ * -length : 0
+ */
+ @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.put(this.icmpType);
+ bb.put(this.icmpCode);
+ bb.putShort(this.checksum);
+ if (payloadData != null) {
+ bb.put(payloadData);
+ }
+
+ if (this.parent != null && this.parent instanceof IPv6) {
+ ((IPv6) this.parent).setNextHeader(IPv6.PROTOCOL_ICMP6);
+ }
+
+ // compute checksum if needed
+ if (this.checksum == 0) {
+ bb.rewind();
+ int accumulation = 0;
+
+ for (int i = 0; i < data.length / 2; ++i) {
+ accumulation += 0xffff & bb.getShort();
+ }
+ // pad to an even number of shorts
+ if (data.length % 2 > 0) {
+ accumulation += (bb.get() & 0xff) << 8;
+ }
+
+ accumulation = (accumulation >> 16 & 0xffff)
+ + (accumulation & 0xffff);
+ this.checksum = (short) (~accumulation & 0xffff);
+ bb.putShort(2, this.checksum);
+ }
+ return data;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see java.lang.Object#hashCode()
+ */
+ @Override
+ public int hashCode() {
+ final int prime = 5807;
+ int result = super.hashCode();
+ result = prime * result + this.icmpType;
+ result = prime * result + this.icmpCode;
+ result = prime * result + this.checksum;
+ 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 ICMP6)) {
+ return false;
+ }
+ final ICMP6 other = (ICMP6) obj;
+ if (this.icmpType != other.icmpType) {
+ return false;
+ }
+ if (this.icmpCode != other.icmpCode) {
+ return false;
+ }
+ if (this.checksum != other.checksum) {
+ return false;
+ }
+ return true;
+ }
+
+ @Override
+ public IPacket deserialize(final byte[] data, final int offset,
+ final int length) {
+ final ByteBuffer bb = ByteBuffer.wrap(data, offset, length);
+ this.icmpType = bb.get();
+ this.icmpCode = bb.get();
+ this.checksum = bb.getShort();
+
+ IPacket payload;
+ if (ICMP6.PROTOCOL_CLASS_MAP.containsKey(this.icmpType)) {
+ final Class<? extends IPacket> clazz = ICMP6.PROTOCOL_CLASS_MAP
+ .get(this.icmpType);
+ try {
+ payload = clazz.newInstance();
+ } catch (final Exception e) {
+ throw new RuntimeException(
+ "Error parsing payload for ICMP6 packet", e);
+ }
+ } else {
+ payload = new Data();
+ }
+ this.payload = payload.deserialize(data, bb.position(),
+ bb.limit() - bb.position());
+ this.payload.setParent(this);
+
+ return this;
+ }
+}