org.pcap4j.packet.IpV6ExtDestinationOptionsPacket Maven / Gradle / Ivy
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The core module of Pcap4J.
/*_##########################################################################
_##
_## Copyright (C) 2012-2014 Pcap4J.org
_##
_##########################################################################
*/
package org.pcap4j.packet;
import java.util.List;
import org.pcap4j.packet.namednumber.IpNumber;
import org.pcap4j.util.ByteArrays;
/**
* @author Kaito Yamada
* @since pcap4j 0.9.10
*/
public final class IpV6ExtDestinationOptionsPacket extends IpV6ExtOptionsPacket {
/** */
private static final long serialVersionUID = -3293888276359687328L;
private final IpV6ExtDestinationOptionsHeader 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 IpV6ExtDestinationOptionsPacket object.
* @throws IllegalRawDataException if parsing the raw data fails.
*/
public static IpV6ExtDestinationOptionsPacket newPacket(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
ByteArrays.validateBounds(rawData, offset, length);
IpV6ExtDestinationOptionsHeader optHeader =
new IpV6ExtDestinationOptionsHeader(rawData, offset, length);
int payloadLength = length - optHeader.length();
if (payloadLength > 0) {
return new IpV6ExtDestinationOptionsPacket(
rawData, offset + optHeader.length(), payloadLength, optHeader);
} else {
return new IpV6ExtDestinationOptionsPacket(optHeader);
}
}
private IpV6ExtDestinationOptionsPacket(IpV6ExtDestinationOptionsHeader optHeader) {
this.header = optHeader;
}
private IpV6ExtDestinationOptionsPacket(
byte[] rawData,
int payloadOffset,
int payloadLength,
IpV6ExtDestinationOptionsHeader optHeader) {
super(rawData, payloadOffset, payloadLength, optHeader.getNextHeader());
this.header = optHeader;
}
private IpV6ExtDestinationOptionsPacket(Builder builder) {
super(builder);
this.header = new IpV6ExtDestinationOptionsHeader(builder);
}
@Override
public IpV6ExtDestinationOptionsHeader getHeader() {
return header;
}
@Override
public Builder getBuilder() {
return new Builder(this);
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.10
*/
public static final class Builder extends org.pcap4j.packet.IpV6ExtOptionsPacket.Builder {
/** */
public Builder() {}
private Builder(IpV6ExtDestinationOptionsPacket packet) {
super(packet);
}
@Override
public Builder nextHeader(IpNumber nextHeader) {
super.nextHeader(nextHeader);
return this;
}
@Override
public Builder hdrExtLen(byte hdrExtLen) {
super.hdrExtLen(hdrExtLen);
return this;
}
@Override
public Builder options(List options) {
super.options(options);
return this;
}
@Override
public Builder payloadBuilder(Packet.Builder payloadBuilder) {
super.payloadBuilder(payloadBuilder);
return this;
}
@Override
public IpV6ExtDestinationOptionsPacket build() {
return new IpV6ExtDestinationOptionsPacket(this);
}
}
/**
* @author Kaito Yamada
* @since pcap4j 0.9.10
*/
public static final class IpV6ExtDestinationOptionsHeader extends IpV6ExtOptionsHeader {
/*
* 0 16 31
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Next Header | Hdr Ext Len | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
* | |
* . .
* . Options .
* . .
* | |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
*/
/** */
private static final long serialVersionUID = 4686702407537705400L;
private IpV6ExtDestinationOptionsHeader(byte[] rawData, int offset, int length)
throws IllegalRawDataException {
super(rawData, offset, length);
}
private IpV6ExtDestinationOptionsHeader(Builder builder) {
super(builder);
}
@Override
protected String getHeaderName() {
return "IPv6 Destination Options Header";
}
}
}
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