org.pcap4j.packet.IcmpV4TimestampReplyPacket Maven / Gradle / Ivy
/*_##########################################################################
_##
_## Copyright (C) 2012-2014 Pcap4J.org
_##
_##########################################################################
*/
package org.pcap4j.packet;
import static org.pcap4j.util.ByteArrays.*;
import java.util.List;
import org.pcap4j.util.ByteArrays;
/**
* @author Kaito Yamada
* @since pcap4j 0.9.11
*/
public final class IcmpV4TimestampReplyPacket extends IcmpIdentifiablePacket {
/** */
private static final long serialVersionUID = 7638323748561226108L;
private final IcmpV4TimestampReplyHeader header;
/**
* A static factory method. This method validates the arguments by {@link
* ByteArrays#validateBounds(byte[], int, int)}, which may throw exceptions undocumented here.
*
* @param rawData rawData
* @param offset offset
* @param length length
* @return a new IcmpV4TimestampReplyPacket object.
* @throws IllegalRawDataException if parsing the raw data fails.
*/
public static IcmpV4TimestampReplyPacket newPacket(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
ByteArrays.validateBounds(rawData, offset, length);
return new IcmpV4TimestampReplyPacket(rawData, offset, length);
}
private IcmpV4TimestampReplyPacket(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
this.header = new IcmpV4TimestampReplyHeader(rawData, offset, length);
}
private IcmpV4TimestampReplyPacket(Builder builder) {
super(builder);
this.header = new IcmpV4TimestampReplyHeader(builder);
}
@Override
public IcmpV4TimestampReplyHeader getHeader() {
return header;
}
@Override
public Builder getBuilder() {
return new Builder(this);
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.11
*/
public static final class Builder extends org.pcap4j.packet.IcmpIdentifiablePacket.Builder {
private int originateTimestamp;
private int receiveTimestamp;
private int transmitTimestamp;
/** */
public Builder() {}
private Builder(IcmpV4TimestampReplyPacket packet) {
super(packet);
this.originateTimestamp = packet.header.originateTimestamp;
this.receiveTimestamp = packet.header.receiveTimestamp;
this.transmitTimestamp = packet.header.transmitTimestamp;
}
@Override
public Builder identifier(short identifier) {
super.identifier(identifier);
return this;
}
@Override
public Builder sequenceNumber(short sequenceNumber) {
super.sequenceNumber(sequenceNumber);
return this;
}
/**
* @param originateTimestamp originateTimestamp
* @return this Builder object for method chaining.
*/
public Builder originateTimestamp(int originateTimestamp) {
this.originateTimestamp = originateTimestamp;
return this;
}
/**
* @param receiveTimestamp receiveTimestamp
* @return this Builder object for method chaining.
*/
public Builder receiveTimestamp(int receiveTimestamp) {
this.receiveTimestamp = receiveTimestamp;
return this;
}
/**
* @param transmitTimestamp transmitTimestamp
* @return this Builder object for method chaining.
*/
public Builder transmitTimestamp(int transmitTimestamp) {
this.transmitTimestamp = transmitTimestamp;
return this;
}
@Override
public IcmpV4TimestampReplyPacket build() {
return new IcmpV4TimestampReplyPacket(this);
}
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.11
*/
public static final class IcmpV4TimestampReplyHeader extends IcmpIdentifiableHeader {
/*
* 0 16 32
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Identifier | Sequence Number |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Originate Timestamp |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Receive Timestamp |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Transmit Timestamp |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
/** */
private static final long serialVersionUID = 8260989404858302787L;
private static final int ORIGINATE_TIMESTAMP_OFFSET = ICMP_IDENTIFIABLE_HEADER_SIZE;
private static final int ORIGINATE_TIMESTAMP_SIZE = INT_SIZE_IN_BYTES;
private static final int RECEIVE_TIMESTAMP_OFFSET =
ORIGINATE_TIMESTAMP_OFFSET + ORIGINATE_TIMESTAMP_SIZE;
private static final int RECEIVE_TIMESTAMP_SIZE = INT_SIZE_IN_BYTES;
private static final int TRANSMIT_TIMESTAMP_OFFSET =
RECEIVE_TIMESTAMP_OFFSET + RECEIVE_TIMESTAMP_SIZE;
private static final int TRANSMIT_TIMESTAMP_SIZE = INT_SIZE_IN_BYTES;
private static final int ICMPV4_TIMESTAMP_HEADER_SIZE =
TRANSMIT_TIMESTAMP_OFFSET + TRANSMIT_TIMESTAMP_SIZE;
private final int originateTimestamp;
private final int receiveTimestamp;
private final int transmitTimestamp;
private IcmpV4TimestampReplyHeader(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
super(rawData, offset, length);
if (length < ICMPV4_TIMESTAMP_HEADER_SIZE) {
StringBuilder sb = new StringBuilder(80);
sb.append("The data is too short to build an ")
.append(getHeaderName())
.append("(")
.append(ICMPV4_TIMESTAMP_HEADER_SIZE)
.append(" bytes). data: ")
.append(ByteArrays.toHexString(rawData, " "))
.append(", offset: ")
.append(offset)
.append(", length: ")
.append(length);
throw new IllegalRawDataException(sb.toString());
}
this.originateTimestamp = ByteArrays.getInt(rawData, ORIGINATE_TIMESTAMP_OFFSET + offset);
this.receiveTimestamp = ByteArrays.getInt(rawData, RECEIVE_TIMESTAMP_OFFSET + offset);
this.transmitTimestamp = ByteArrays.getInt(rawData, TRANSMIT_TIMESTAMP_OFFSET + offset);
}
private IcmpV4TimestampReplyHeader(Builder builder) {
super(builder);
this.originateTimestamp = builder.originateTimestamp;
this.receiveTimestamp = builder.receiveTimestamp;
this.transmitTimestamp = builder.transmitTimestamp;
}
/** @return originateTimestamp */
public int getOriginateTimestamp() {
return originateTimestamp;
}
/** @return receiveTimestamp */
public int getReceiveTimestamp() {
return receiveTimestamp;
}
/** @return transmitTimestamp */
public int getTransmitTimestamp() {
return transmitTimestamp;
}
@Override
protected List getRawFields() {
List rawFields = super.getRawFields();
rawFields.add(ByteArrays.toByteArray(originateTimestamp));
rawFields.add(ByteArrays.toByteArray(receiveTimestamp));
rawFields.add(ByteArrays.toByteArray(transmitTimestamp));
return rawFields;
}
@Override
public int length() {
return ICMPV4_TIMESTAMP_HEADER_SIZE;
}
@Override
protected String buildString() {
StringBuilder sb = new StringBuilder();
String ls = System.getProperty("line.separator");
sb.append(super.buildString());
sb.append(" Originate Timestamp: ").append(originateTimestamp).append(ls);
sb.append(" Receive Timestamp: ").append(receiveTimestamp).append(ls);
sb.append(" Transmit Timestamp: ").append(transmitTimestamp).append(ls);
return sb.toString();
}
@Override
public boolean equals(Object obj) {
if (!super.equals(obj)) {
return false;
}
IcmpV4TimestampReplyHeader other = (IcmpV4TimestampReplyHeader) obj;
return originateTimestamp == other.originateTimestamp
&& receiveTimestamp == other.receiveTimestamp
&& transmitTimestamp == other.transmitTimestamp;
}
@Override
protected int calcHashCode() {
int result = super.calcHashCode();
result = 31 * result + originateTimestamp;
result = 31 * result + receiveTimestamp;
result = 31 * result + transmitTimestamp;
return result;
}
@Override
protected String getHeaderName() {
return "ICMPv4 Timestamp Reply Header";
}
}
}
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