diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Fragment.java')
| -rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Fragment.java | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Fragment.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Fragment.java deleted file mode 100644 index 68015d31..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ipv6/Fragment.java +++ /dev/null @@ -1,253 +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 static org.onlab.packet.PacketUtils.checkInput; - -/** - * Implements IPv6 fragment extension header format. (RFC 2460) - */ -public class Fragment extends BasePacket implements IExtensionHeader { - public static final byte HEADER_LENGTH = 8; // bytes - - protected byte nextHeader; - protected short fragmentOffset; - protected byte moreFragment; - protected int identification; - - @Override - public byte getNextHeader() { - return this.nextHeader; - } - - @Override - public Fragment setNextHeader(final byte nextHeader) { - this.nextHeader = nextHeader; - return this; - } - - /** - * Gets the fragment offset of this header. - * - * @return fragment offset - */ - public short getFragmentOffset() { - return this.fragmentOffset; - } - - /** - * Sets the fragment offset of this header. - * - * @param fragmentOffset the fragment offset to set - * @return this - */ - public Fragment setFragmentOffset(final short fragmentOffset) { - this.fragmentOffset = fragmentOffset; - return this; - } - - /** - * Gets the more fragment flag of this header. - * - * @return more fragment flag - */ - public byte getMoreFragment() { - return this.moreFragment; - } - - /** - * Sets the more fragment flag of this header. - * - * @param moreFragment the more fragment flag to set - * @return this - */ - public Fragment setMoreFragment(final byte moreFragment) { - this.moreFragment = moreFragment; - return this; - } - - /** - * Gets the identification of this header. - * - * @return identification - */ - public int getIdentification() { - return this.identification; - } - - /** - * Sets the identification of this header. - * - * @param identification the identification to set - * @return this - */ - public Fragment setIdentification(final int identification) { - this.identification = identification; - return this; - } - - @Override - public byte[] serialize() { - byte[] payloadData = null; - if (this.payload != null) { - this.payload.setParent(this); - payloadData = this.payload.serialize(); - } - - int payloadLength = 0; - if (payloadData != null) { - payloadLength = payloadData.length; - } - - final byte[] data = new byte[HEADER_LENGTH + payloadLength]; - final ByteBuffer bb = ByteBuffer.wrap(data); - - bb.put(this.nextHeader); - bb.put((byte) 0); - bb.putShort((short) ( - (this.fragmentOffset & 0x1fff) << 3 | - this.moreFragment & 0x1 - )); - bb.putInt(this.identification); - - if (payloadData != null) { - bb.put(payloadData); - } - - if (this.parent != null && this.parent instanceof IExtensionHeader) { - ((IExtensionHeader) this.parent).setNextHeader(IPv6.PROTOCOL_FRAG); - } - return data; - } - - @Override - public IPacket deserialize(byte[] data, int offset, int length) { - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - this.nextHeader = bb.get(); - bb.get(); - short sscratch = bb.getShort(); - this.fragmentOffset = (short) (sscratch >> 3 & 0x1fff); - this.moreFragment = (byte) (sscratch & 0x1); - this.identification = bb.getInt(); - - 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.fragmentOffset; - result = prime * result + this.moreFragment; - result = prime * result + this.identification; - 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 Fragment)) { - return false; - } - final Fragment other = (Fragment) obj; - if (this.nextHeader != other.nextHeader) { - return false; - } - if (this.fragmentOffset != other.fragmentOffset) { - return false; - } - if (this.moreFragment != other.moreFragment) { - return false; - } - if (this.identification != other.identification) { - return false; - } - return true; - } - - /** - * Deserializer function for fragment headers. - * - * @return deserializer function - */ - public static Deserializer<Fragment> deserializer() { - return (data, offset, length) -> { - checkInput(data, offset, length, HEADER_LENGTH); - - Fragment fragment = new Fragment(); - - ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - fragment.nextHeader = bb.get(); - bb.get(); - short sscratch = bb.getShort(); - fragment.fragmentOffset = (short) (sscratch >> 3 & 0x1fff); - fragment.moreFragment = (byte) (sscratch & 0x1); - fragment.identification = bb.getInt(); - - Deserializer<? extends IPacket> deserializer; - if (IPv6.PROTOCOL_DESERIALIZER_MAP.containsKey(fragment.nextHeader)) { - deserializer = IPv6.PROTOCOL_DESERIALIZER_MAP.get(fragment.nextHeader); - } else { - deserializer = Data.deserializer(); - } - fragment.payload = deserializer.deserialize(data, bb.position(), - bb.limit() - bb.position()); - fragment.payload.setParent(fragment); - - return fragment; - }; - } -} |