Class HdlcPppPacket.HdlcPppHeader

java.lang.Object

org.pcap4j.packet.AbstractPacket.AbstractHeader

org.pcap4j.packet.AbstractPppPacket.AbstractPppHeader

org.pcap4j.packet.HdlcPppPacket.HdlcPppHeader

All Implemented Interfaces:

Serializable, Packet.Header

Enclosing class:

HdlcPppPacket

public static class HdlcPppPacket.HdlcPppHeader
extends AbstractPppPacket.AbstractPppHeader

Since:

pcap4j 1.4.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final byte	address
private static final int	ADDRESS_OFFSET
private static final int	ADDRESS_SIZE
private final byte	control
private static final int	CONTROL_OFFSET
private static final int	CONTROL_SIZE
private static final int	HDLC_PPP_HEADER_SIZE
private static final int	PPP_HEADER_OFFSET
private static final long	serialVersionUID

Fields inherited from class AbstractPppPacket.AbstractPppHeader

PPP_HEADER_SIZE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	HdlcPppHeader(byte[] rawData, int offset, int length)
private	HdlcPppHeader(HdlcPppPacket.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().
byte	getAddress()
byte	getControl()
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 AbstractPppPacket.AbstractPppHeader

getProtocol

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

ADDRESS_OFFSET

private static final int ADDRESS_OFFSET

See Also:

• Constant Field Values

ADDRESS_SIZE

private static final int ADDRESS_SIZE

See Also:

• Constant Field Values

CONTROL_OFFSET

private static final int CONTROL_OFFSET

See Also:

• Constant Field Values

CONTROL_SIZE

private static final int CONTROL_SIZE

See Also:

• Constant Field Values

PPP_HEADER_OFFSET

private static final int PPP_HEADER_OFFSET

See Also:

• Constant Field Values

HDLC_PPP_HEADER_SIZE

private static final int HDLC_PPP_HEADER_SIZE

See Also:

• Constant Field Values

address

private final byte address

control

private final byte control

Constructor Details

HdlcPppHeader

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

Throws:

IllegalRawDataException

HdlcPppHeader

private HdlcPppHeader(HdlcPppPacket.Builder builder)

Method Details

getAddress

public byte getAddress()

Returns:

address

getControl

public byte getControl()

Returns:

control

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().

Overrides:

getRawFields in class AbstractPppPacket.AbstractPppHeader

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 AbstractPppPacket.AbstractPppHeader

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 AbstractPppPacket.AbstractPppHeader

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 AbstractPppPacket.AbstractPppHeader

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 AbstractPppPacket.AbstractPppHeader

Returns:

a calculated hash code value for the object