org.pcap4j.packet.IcmpV6EchoRequestPacket Maven / Gradle / Ivy
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The core module of Pcap4J.
/*_##########################################################################
_##
_## Copyright (C) 2013-2014 Pcap4J.org
_##
_##########################################################################
*/
package org.pcap4j.packet;
import org.pcap4j.packet.factory.PacketFactories;
import org.pcap4j.packet.namednumber.NotApplicable;
import org.pcap4j.util.ByteArrays;
/**
* @author Kaito Yamada
* @since pcap4j 0.9.15
*/
public final class IcmpV6EchoRequestPacket extends IcmpIdentifiablePacket {
/** */
private static final long serialVersionUID = 1447480467515593011L;
private final IcmpV6EchoRequestHeader header;
private final Packet payload;
/**
* 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 IcmpV6EchoRequestPacket object.
* @throws IllegalRawDataException if parsing the raw data fails.
*/
public static IcmpV6EchoRequestPacket newPacket(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
ByteArrays.validateBounds(rawData, offset, length);
return new IcmpV6EchoRequestPacket(rawData, offset, length);
}
private IcmpV6EchoRequestPacket(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
this.header = new IcmpV6EchoRequestHeader(rawData, offset, length);
int payloadLength = length - header.length();
if (payloadLength > 0) {
this.payload =
PacketFactories.getFactory(Packet.class, NotApplicable.class)
.newInstance(rawData, offset + header.length(), payloadLength, NotApplicable.UNKNOWN);
} else {
this.payload = null;
}
}
private IcmpV6EchoRequestPacket(Builder builder) {
super(builder);
this.payload = builder.payloadBuilder != null ? builder.payloadBuilder.build() : null;
this.header = new IcmpV6EchoRequestHeader(builder);
}
@Override
public IcmpV6EchoRequestHeader getHeader() {
return header;
}
@Override
public Packet getPayload() {
return payload;
}
@Override
public Builder getBuilder() {
return new Builder(this);
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.15
*/
public static final class Builder extends org.pcap4j.packet.IcmpIdentifiablePacket.Builder {
private Packet.Builder payloadBuilder;
/** */
public Builder() {}
private Builder(IcmpV6EchoRequestPacket packet) {
super(packet);
this.payloadBuilder = packet.payload != null ? packet.payload.getBuilder() : null;
}
@Override
public Builder identifier(short identifier) {
super.identifier(identifier);
return this;
}
@Override
public Builder sequenceNumber(short sequenceNumber) {
super.sequenceNumber(sequenceNumber);
return this;
}
@Override
public Builder payloadBuilder(Packet.Builder payloadBuilder) {
this.payloadBuilder = payloadBuilder;
return this;
}
@Override
public Packet.Builder getPayloadBuilder() {
return payloadBuilder;
}
@Override
public IcmpV6EchoRequestPacket build() {
return new IcmpV6EchoRequestPacket(this);
}
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.15
*/
public static final class IcmpV6EchoRequestHeader extends IcmpIdentifiableHeader {
/*
* 0 15
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Identifier |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Sequence Number |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
/** */
private static final long serialVersionUID = -6510139039546388892L;
private IcmpV6EchoRequestHeader(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
super(rawData, offset, length);
}
private IcmpV6EchoRequestHeader(Builder builder) {
super(builder);
}
@Override
protected String getHeaderName() {
return "ICMPv6 Echo Request Header";
}
}
}
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