Module org.pcap4j.core

Package org.pcap4j.packet

Class LinuxSllPacket.LinuxSllHeader

java.lang.Object

org.pcap4j.packet.AbstractPacket.AbstractHeader

org.pcap4j.packet.LinuxSllPacket.LinuxSllHeader

All Implemented Interfaces:

Serializable, Packet.Header

Enclosing class:

LinuxSllPacket

public static final class LinuxSllPacket.LinuxSllHeader
extends AbstractPacket.AbstractHeader

Since:

pcap4j 0.9.11

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	ADDR_OFFSET
private static final int	ADDR_SIZE
private final LinkLayerAddress	address
private final byte[]	addressField
private final short	addressLength
private final ArpHardwareType	addressType
private static final int	HALEN_OFFSET
private static final int	HALEN_SIZE
private static final int	LINUX_SLL_HEADER_SIZE
private final LinuxSllPacketType	packetType
private static final int	PHATYPE_OFFSET
private static final int	PHATYPE_SIZE
private static final int	PPKTTYPE_OFFSET
private static final int	PPKTTYPE_SIZE
private final EtherType	protocol
private static final int	PROTOCOL_OFFSET
private static final int	PROTOCOL_SIZE
private static final long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
private	LinuxSllHeader(byte[] rawData, int offset, int length)
private	LinuxSllHeader(LinuxSllPacket.Builder builder)

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().
LinkLayerAddress	getAddress()
byte[]	getAddressField()
short	getAddressLength()
int	getAddressLengthAsInt()
ArpHardwareType	getAddressType()
LinuxSllPacketType	getPacketType()
EtherType	getProtocol()
protected List<byte[]>	getRawFields()	Returns a list of byte arrays which represents this header's fields.
int	length()	Returns the header length in bytes.

Methods inherited from class org.pcap4j.packet.AbstractPacket.AbstractHeader

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

Methods inherited from class java.lang.Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

PPKTTYPE_OFFSET

private static final int PPKTTYPE_OFFSET

See Also:

• Constant Field Values

PPKTTYPE_SIZE

private static final int PPKTTYPE_SIZE

See Also:

• Constant Field Values

PHATYPE_OFFSET

private static final int PHATYPE_OFFSET

See Also:

• Constant Field Values

PHATYPE_SIZE

private static final int PHATYPE_SIZE

See Also:

• Constant Field Values

HALEN_OFFSET

private static final int HALEN_OFFSET

See Also:

• Constant Field Values

HALEN_SIZE

private static final int HALEN_SIZE

See Also:

• Constant Field Values

ADDR_OFFSET

private static final int ADDR_OFFSET

See Also:

• Constant Field Values

ADDR_SIZE

private static final int ADDR_SIZE

See Also:

• Constant Field Values

PROTOCOL_OFFSET

private static final int PROTOCOL_OFFSET

See Also:

• Constant Field Values

PROTOCOL_SIZE

private static final int PROTOCOL_SIZE

See Also:

• Constant Field Values

LINUX_SLL_HEADER_SIZE

private static final int LINUX_SLL_HEADER_SIZE

See Also:

• Constant Field Values

packetType

private final LinuxSllPacketType packetType

addressType

private final ArpHardwareType addressType

addressLength

private final short addressLength

addressField

private final byte[] addressField

address

private final LinkLayerAddress address

protocol

private final EtherType protocol

Constructor Details

LinuxSllHeader

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

Throws:

IllegalRawDataException

LinuxSllHeader

private LinuxSllHeader(LinuxSllPacket.Builder builder)

Method Details

getPacketType

public LinuxSllPacketType getPacketType()

Returns:

packetType

getAddressType

public ArpHardwareType getAddressType()

Returns:

addressType

getAddressLength

public short getAddressLength()

Returns:

addressLength

getAddressLengthAsInt

public int getAddressLengthAsInt()

Returns:

addressLength

getAddress

public LinkLayerAddress getAddress()

Returns:

address, or null if the addressLength is 0.

getAddressField

public byte[] getAddressField()

Returns:

address field

getProtocol

public EtherType getProtocol()

Returns:

protocol

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