diff options
Diffstat (limited to 'framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ICMP.java')
| -rw-r--r-- | framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ICMP.java | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ICMP.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ICMP.java deleted file mode 100644 index d07a9ba4..00000000 --- a/framework/src/onos/utils/misc/src/main/java/org/onlab/packet/ICMP.java +++ /dev/null @@ -1,223 +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; - -import java.nio.ByteBuffer; - -import static org.onlab.packet.PacketUtils.*; - -/** - * Implements ICMP packet format. - * - */ -public class ICMP extends BasePacket { - protected byte icmpType; - protected byte icmpCode; - protected short checksum; - - public static final byte TYPE_ECHO_REQUEST = 0x08; - public static final byte TYPE_ECHO_REPLY = 0x00; - public static final byte SUBTYPE_ECHO_REPLY = 0x00; - - public static final short ICMP_HEADER_LENGTH = 4; - - /** - * @return the icmpType - */ - public byte getIcmpType() { - return this.icmpType; - } - - /** - * @param icmpType - * to set - * @return this - */ - public ICMP 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 ICMP 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 ICMP 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() { - int length = 4; - byte[] payloadData = null; - if (this.payload != null) { - this.payload.setParent(this); - payloadData = this.payload.serialize(); - length += payloadData.length; - } - - final byte[] data = new byte[length]; - 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 IPv4) { - ((IPv4) this.parent).setProtocol(IPv4.PROTOCOL_ICMP); - } - - // compute checksum if needed - if (this.checksum == 0) { - bb.rewind(); - int accumulation = 0; - - for (int i = 0; i < length / 2; ++i) { - accumulation += 0xffff & bb.getShort(); - } - // pad to an even number of shorts - if (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; - } - - @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(); - - 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(); - 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 ICMP)) { - return false; - } - final ICMP other = (ICMP) obj; - if (this.icmpType != other.icmpType) { - return false; - } - if (this.icmpCode != other.icmpCode) { - return false; - } - if (this.checksum != other.checksum) { - return false; - } - return true; - } - - /** - * Deserializer function for ICMP packets. - * - * @return deserializer function - */ - public static Deserializer<ICMP> deserializer() { - return (data, offset, length) -> { - checkInput(data, offset, length, ICMP_HEADER_LENGTH); - - ICMP icmp = new ICMP(); - - final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); - icmp.icmpType = bb.get(); - icmp.icmpCode = bb.get(); - icmp.checksum = bb.getShort(); - - icmp.payload = Data.deserializer() - .deserialize(data, bb.position(), bb.limit() - - bb.position()); - icmp.payload.setParent(icmp); - return icmp; - }; - } -} |