diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Routing.java')
| -rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Routing.java | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Routing.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Routing.java deleted file mode 100644 index d7d204a9..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Routing.java +++ /dev/null @@ -1,291 +0,0 @@ -/* - * Copyright 2014-2015 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.ipv6; - -import org.onlab.packet.BasePacket; -import org.onlab.packet.Data; -import org.onlab.packet.DeserializationException; -import org.onlab.packet.Deserializer; -import org.onlab.packet.IPacket; -import org.onlab.packet.IPv6; - -import java.nio.ByteBuffer; -import java.util.Arrays; - -import static org.onlab.packet.PacketUtils.checkHeaderLength; -import static org.onlab.packet.PacketUtils.checkInput; - -/** - * Implements IPv6 routing extension header format. (RFC 2460) - */ -public class Routing extends BasePacket implements IExtensionHeader { - public static final byte FIXED_HEADER_LENGTH = 4; // bytes - public static final byte FIXED_ROUTING_DATA_LENGTH = 4; // bytes - public static final byte LENGTH_UNIT = 8; // bytes per unit - - protected byte nextHeader; - protected byte headerExtLength; - protected byte routingType; - protected byte segmentsLeft; - protected byte[] routingData; - - @Override - public byte getNextHeader() { - return this.nextHeader; - } - - @Override - public Routing setNextHeader(final byte nextHeader) { - this.nextHeader = nextHeader; - return this; - } - - /** - * Gets the extension length of this header. - * - * @return header length - */ - public byte getHeaderExtLength() { - return this.headerExtLength; - } - - /** - * Sets the extension length of this header. - * - * @param headerExtLength the header length to set - * @return this - */ - public Routing setHeaderExtLength(final byte headerExtLength) { - this.headerExtLength = headerExtLength; - return this; - } - - /** - * Gets the routing type of this header. - * - * @return routing type - */ - public byte getRoutingType() { - return this.routingType; - } - - /** - * Sets the routing type of this header. - * - * @param routingType the routing type to set - * @return this - */ - public Routing setRoutingType(final byte routingType) { - this.routingType = routingType; - return this; - } - - /** - * Gets the number of remaining route segments of this header. - * - * @return number of remaining route segments - */ - public byte getSegmentsLeft() { - return this.segmentsLeft; - } - - /** - * Sets the number of remaining route segments of this header. - * - * @param segmentsLeft the number of remaining route segments to set - * @return this - */ - public Routing setSegmntsLeft(final byte segmentsLeft) { - this.segmentsLeft = segmentsLeft; - return this; - } - - /** - * Gets the routing data. - * - * @return the routing data - */ - public byte[] getRoutingData() { - return this.routingData; - } - - /** - * Sets the routing data. - * - * @param routingData the routing data to set - * @return this - */ - public Routing setRoutingData(final byte[] routingData) { - this.routingData = - Arrays.copyOfRange(routingData, 0, routingData.length); - return this; - } - - @Override - public byte[] serialize() { - byte[] payloadData = null; - if (this.payload != null) { - this.payload.setParent(this); - payloadData = this.payload.serialize(); - } - - int headerLength = FIXED_HEADER_LENGTH + routingData.length; - int payloadLength = 0; - if (payloadData != null) { - payloadLength = payloadData.length; - } - - final byte[] data = new byte[headerLength + payloadLength]; - final ByteBuffer bb = ByteBuffer.wrap(data); - - bb.put(this.nextHeader); - bb.put(this.headerExtLength); - bb.put(this.routingType); - bb.put(this.segmentsLeft); - bb.put(this.routingData, 0, routingData.length); - - if (payloadData != null) { - bb.put(payloadData); - } - - if (this.parent != null && this.parent instanceof IExtensionHeader) { - ((IExtensionHeader) this.parent).setNextHeader(IPv6.PROTOCOL_ROUTING); - } - return data; - } - - @Override - public IPacket deserialize(byte[] data, int offset, int length) { - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - this.nextHeader = bb.get(); - this.headerExtLength = bb.get(); - this.routingType = bb.get(); - this.segmentsLeft = bb.get(); - int dataLength = - FIXED_ROUTING_DATA_LENGTH + LENGTH_UNIT * this.headerExtLength; - this.routingData = new byte[dataLength]; - bb.get(this.routingData, 0, dataLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(this.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(this.nextHeader); - } else { - deserializer = new Data().deserializer(); - } - try { - this.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - this.payload.setParent(this); - } catch (DeserializationException e) { - return this; - } - - return this; - } - - /* - * (non-Javadoc) - * - * @see java.lang.Object#hashCode() - */ - @Override - public int hashCode() { - final int prime = 5807; - int result = super.hashCode(); - result = prime * result + this.nextHeader; - result = prime * result + this.headerExtLength; - result = prime * result + this.routingType; - result = prime * result + this.segmentsLeft; - for (byte b : this.routingData) { - result = prime * result + b; - } - 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 Routing)) { - return false; - } - final Routing other = (Routing) obj; - if (this.nextHeader != other.nextHeader) { - return false; - } - if (this.headerExtLength != other.headerExtLength) { - return false; - } - if (this.routingType != other.routingType) { - return false; - } - if (this.segmentsLeft != other.segmentsLeft) { - return false; - } - if (!Arrays.equals(this.routingData, other.routingData)) { - return false; - } - return true; - } - - /** - * Deserializer function for routing headers. - * - * @return deserializer function - */ - public static Deserializer<Routing> deserializer() { - return (data, offset, length) -> { - checkInput(data, offset, length, FIXED_HEADER_LENGTH); - - Routing routing = new Routing(); - - ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - routing.nextHeader = bb.get(); - routing.headerExtLength = bb.get(); - routing.routingType = bb.get(); - routing.segmentsLeft = bb.get(); - int dataLength = - FIXED_ROUTING_DATA_LENGTH + LENGTH_UNIT * routing.headerExtLength; - - checkHeaderLength(bb.remaining(), dataLength); - - routing.routingData = new byte[dataLength]; - bb.get(routing.routingData, 0, dataLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(routing.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(routing.nextHeader); - } else { - deserializer = new Data().deserializer(); - } - routing.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - routing.payload.setParent(routing); - - return routing; - }; - } -} |