diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/BaseOptions.java')
| -rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/BaseOptions.java | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/BaseOptions.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/BaseOptions.java deleted file mode 100644 index f57b756e..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/BaseOptions.java +++ /dev/null @@ -1,260 +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; - -/** - * Base class for hop-by-hop options and destination options. - */ -public class BaseOptions extends BasePacket implements IExtensionHeader { - public static final byte FIXED_HEADER_LENGTH = 2; // bytes - public static final byte FIXED_OPTIONS_LENGTH = 6; // bytes - public static final byte LENGTH_UNIT = 8; // bytes per unit - - protected byte nextHeader; - protected byte headerExtLength; - protected byte[] options; - protected byte type; - - @Override - public byte getNextHeader() { - return this.nextHeader; - } - - @Override - public BaseOptions 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 BaseOptions setHeaderExtLength(final byte headerExtLength) { - this.headerExtLength = headerExtLength; - return this; - } - - /** - * Gets the options. - * - * @return the options - */ - public byte[] getOptions() { - return this.options; - } - - /** - * Sets the options. - * - * @param options the options to set - * @return this - */ - public BaseOptions setOptions(final byte[] options) { - this.options = - Arrays.copyOfRange(options, 0, options.length); - return this; - } - - /** - * Gets the type of this option. - * - * @return the type - */ - protected byte getType() { - return this.type; - } - - /** - * Sets the type of this option. - * Must be either IPv6.PROTOCOL_HOPOPT or IPv6.PROTOCOL_DSTOPT - * - * @param type the type to set - * @return this - */ - protected BaseOptions setType(final byte type) { - this.type = type; - 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 + options.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.options, 0, options.length); - - if (payloadData != null) { - bb.put(payloadData); - } - - if (this.parent != null && this.parent instanceof IExtensionHeader) { - ((IExtensionHeader) this.parent).setNextHeader(this.type); - } - 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(); - int optionLength = - FIXED_OPTIONS_LENGTH + LENGTH_UNIT * this.headerExtLength; - this.options = new byte[optionLength]; - bb.get(this.options, 0, optionLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(this.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(this.nextHeader); - } else { - deserializer = 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; - for (byte b : this.options) { - 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 BaseOptions)) { - return false; - } - final BaseOptions other = (BaseOptions) obj; - if (this.nextHeader != other.nextHeader) { - return false; - } - if (this.headerExtLength != other.headerExtLength) { - return false; - } - if (!Arrays.equals(this.options, other.options)) { - return false; - } - if (this.type != other.type) { - return false; - } - return true; - } - - /** - * Deserializer function for IPv6 base options. - * - * @return deserializer function - */ - public static Deserializer<BaseOptions> deserializer() { - return (data, offset, length) -> { - checkInput(data, offset, length, FIXED_HEADER_LENGTH); - - BaseOptions baseOptions = new BaseOptions(); - - ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - baseOptions.nextHeader = bb.get(); - baseOptions.headerExtLength = bb.get(); - int optionLength = - FIXED_OPTIONS_LENGTH + LENGTH_UNIT * baseOptions.headerExtLength; - - checkHeaderLength(bb.remaining(), optionLength); - - baseOptions.options = new byte[optionLength]; - bb.get(baseOptions.options, 0, optionLength); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(baseOptions.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(baseOptions.nextHeader); - } else { - deserializer = Data.deserializer(); - } - baseOptions.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - baseOptions.payload.setParent(baseOptions); - - return baseOptions; - }; - } -} |