Class IpV6Packet.IpV6Header

java.lang.Object

org.pcap4j.packet.AbstractPacket.AbstractHeader

org.pcap4j.packet.IpV6Packet.IpV6Header

All Implemented Interfaces:

Serializable, IpPacket.IpHeader, Packet.Header

Enclosing class:

IpV6Packet

public static final class IpV6Packet.IpV6Header
extends AbstractPacket.AbstractHeader
implements IpPacket.IpHeader

Since:

pcap4j 0.9.10

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	DST_ADDR_OFFSET
private static final int	DST_ADDR_SIZE
private final Inet6Address	dstAddr
private final IpV6Packet.IpV6FlowLabel	flowLabel
private static final int	HOP_LIMIT_OFFSET
private static final int	HOP_LIMIT_SIZE
private final byte	hopLimit
private static final int	IPV6_HEADER_SIZE
private static final int	NEXT_HEADER_OFFSET
private static final int	NEXT_HEADER_SIZE
private final IpNumber	nextHeader
private static final int	PAYLOAD_LENGTH_OFFSET
private static final int	PAYLOAD_LENGTH_SIZE
private final short	payloadLength
private static final long	serialVersionUID
private static final int	SRC_ADDR_OFFSET
private static final int	SRC_ADDR_SIZE
private final Inet6Address	srcAddr
private final IpV6Packet.IpV6TrafficClass	trafficClass
private final IpVersion	version
private static final int	VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_OFFSET
private static final int	VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_SIZE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	IpV6Header(byte[] rawData, int offset, int length)
private	IpV6Header(IpV6Packet.Builder builder, Packet payload)

Method Summary

Modifier and Type	Method	Description
protected String	buildString()	This method builds the value toString() will return.
protected int	calcHashCode()	This method builds the value hashCode() will return using the byte array getRawData() returns.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one using return values of getRawData().
Inet6Address	getDstAddr()
IpV6Packet.IpV6FlowLabel	getFlowLabel()
byte	getHopLimit()
int	getHopLimitAsInt()
IpNumber	getNextHeader()
short	getPayloadLength()
int	getPayloadLengthAsInt()
IpNumber	getProtocol()
protected List<byte[]>	getRawFields()	Returns a list of byte arrays which represents this header's fields.
Inet6Address	getSrcAddr()
IpV6Packet.IpV6TrafficClass	getTrafficClass()
IpVersion	getVersion()
int	length()	Returns the header length in bytes.

Methods inherited from class AbstractPacket.AbstractHeader

buildHexString, buildRawData, calcLength, getRawData, hashCode, toHexString, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Packet.Header

getRawData

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_OFFSET

private static final int VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_OFFSET

See Also:

• Constant Field Values

VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_SIZE

private static final int VERSION_AND_TRAFFIC_CLASS_AND_FLOW_LABEL_SIZE

See Also:

• Constant Field Values

PAYLOAD_LENGTH_OFFSET

private static final int PAYLOAD_LENGTH_OFFSET

See Also:

• Constant Field Values

PAYLOAD_LENGTH_SIZE

private static final int PAYLOAD_LENGTH_SIZE

See Also:

• Constant Field Values

NEXT_HEADER_OFFSET

private static final int NEXT_HEADER_OFFSET

See Also:

• Constant Field Values

NEXT_HEADER_SIZE

private static final int NEXT_HEADER_SIZE

See Also:

• Constant Field Values

HOP_LIMIT_OFFSET

private static final int HOP_LIMIT_OFFSET

See Also:

• Constant Field Values

HOP_LIMIT_SIZE

private static final int HOP_LIMIT_SIZE

See Also:

• Constant Field Values

SRC_ADDR_OFFSET

private static final int SRC_ADDR_OFFSET

See Also:

• Constant Field Values

SRC_ADDR_SIZE

private static final int SRC_ADDR_SIZE

See Also:

• Constant Field Values

DST_ADDR_OFFSET

private static final int DST_ADDR_OFFSET

See Also:

• Constant Field Values

DST_ADDR_SIZE

private static final int DST_ADDR_SIZE

See Also:

• Constant Field Values

IPV6_HEADER_SIZE

private static final int IPV6_HEADER_SIZE

See Also:

• Constant Field Values

version

private final IpVersion version

trafficClass

private final IpV6Packet.IpV6TrafficClass trafficClass

flowLabel

private final IpV6Packet.IpV6FlowLabel flowLabel

payloadLength

private final short payloadLength

nextHeader

private final IpNumber nextHeader

hopLimit

private final byte hopLimit

srcAddr

private final Inet6Address srcAddr

dstAddr

private final Inet6Address dstAddr

Constructor Details

IpV6Header

private IpV6Header(byte[] rawData,
 int offset,
 int length)
            throws IllegalRawDataException

Throws:

IllegalRawDataException

IpV6Header

private IpV6Header(IpV6Packet.Builder builder,
 Packet payload)

Method Details

getVersion

public IpVersion getVersion()

Specified by:

getVersion in interface IpPacket.IpHeader

Returns:

version

getTrafficClass

public IpV6Packet.IpV6TrafficClass getTrafficClass()

Returns:

trafficClass

getFlowLabel

public IpV6Packet.IpV6FlowLabel getFlowLabel()

Returns:

flowLabel

getPayloadLength

public short getPayloadLength()

Returns:

payloadLength

getPayloadLengthAsInt

public int getPayloadLengthAsInt()

Returns:

payloadLength

getNextHeader

public IpNumber getNextHeader()

Returns:

nextHeader

getProtocol

public IpNumber getProtocol()

Specified by:

getProtocol in interface IpPacket.IpHeader

Returns:

an IpNumber object which indicates the protocol of the following header.

getHopLimit

public byte getHopLimit()

Returns:

hopLimit

getHopLimitAsInt

public int getHopLimitAsInt()

Returns:

hopLimit

getSrcAddr

public Inet6Address getSrcAddr()

Specified by:

getSrcAddr in interface IpPacket.IpHeader

Returns:

srcAddr

getDstAddr

public Inet6Address getDstAddr()

Specified by:

getDstAddr in interface IpPacket.IpHeader

Returns:

dstAddr

getRawFields

protected List<byte[]> getRawFields()

Description copied from class: AbstractPacket.AbstractHeader

Returns a list of byte arrays which represents this header's fields. This method is called by calcLength() and buildRawData().

Specified by:

getRawFields in class AbstractPacket.AbstractHeader

Returns:

a list of byte arrays which represents this header's fields

length

public int length()

Description copied from class: AbstractPacket.AbstractHeader

Returns the header length in bytes. This method calls calcLength() and caches the return value when it is called for the first time, and then, this method returns the cached value from the second time.

Specified by:

length in interface Packet.Header

Overrides:

length in class AbstractPacket.AbstractHeader

Returns:

the length of the byte stream of the header represented by this object in bytes

buildString

protected String buildString()

Description copied from class: AbstractPacket.AbstractHeader

This method builds the value toString() will return.

Overrides:

buildString in class AbstractPacket.AbstractHeader

Returns:

a string representation of this object

equals

public boolean equals(Object obj)

Description copied from class: AbstractPacket.AbstractHeader

Indicates whether some other object is "equal to" this one using return values of getRawData(). This method should be overridden so that it does more strict comparisons more efficiently.

Overrides:

equals in class AbstractPacket.AbstractHeader

calcHashCode

protected int calcHashCode()

Description copied from class: AbstractPacket.AbstractHeader

This method builds the value hashCode() will return using the byte array getRawData() returns. This method may be better to be overridden for performance reason.

Overrides:

calcHashCode in class AbstractPacket.AbstractHeader

Returns:

a calculated hash code value for the object