Class Dot11ManagementPacket.Dot11ManagementHeader

java.lang.Object

org.pcap4j.packet.AbstractPacket.AbstractHeader

org.pcap4j.packet.Dot11ManagementPacket.Dot11ManagementHeader

All Implemented Interfaces:

Serializable, Packet.Header

Direct Known Subclasses:

Dot11ProbeRequestPacket.Dot11ProbeRequestHeader

Enclosing class:

Dot11ManagementPacket

public abstract static class Dot11ManagementPacket.Dot11ManagementHeader
extends AbstractPacket.AbstractHeader

Header of IEEE802.11 management frame

 0                             15
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|         Frame Control         |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|         Duration              |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                               |
|          Address1             |
|                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                               |
|          Address2             |
|                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|                               |
|          Address3             |
|                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|       Sequence Control        |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|         HT Control            |
|                               |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Since:

pcap4j 1.7.0

See Also:

• IEEE802.11
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final MacAddress	address1
private static final int	ADDRESS1_OFFSET
private static final int	ADDRESS1_SIZE
private final MacAddress	address2
private static final int	ADDRESS2_OFFSET
private static final int	ADDRESS2_SIZE
private final MacAddress	address3
private static final int	ADDRESS3_OFFSET
private static final int	ADDRESS3_SIZE
private static final int	DOT11_HEADER_MIN_SIZE
private final short	duration
private static final int	DURATION_OFFSET
private static final int	DURATION_SIZE
private static final int	FRAME_CONTROL_OFFSET
private static final int	FRAME_CONTROL_SIZE
private final Dot11FrameControl	frameControl
private static final int	HT_CONTROL_OFFSET
private static final int	HT_CONTROL_SIZE
private final Dot11HtControl	htControl
private static final int	SEQUENCE_CONTROL_OFFSET
private static final int	SEQUENCE_CONTROL_SIZE
private final Dot11SequenceControl	sequenceControl
private static final long	serialVersionUID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Dot11ManagementHeader(byte[] rawData, int offset, int length)
protected	Dot11ManagementHeader(Dot11ManagementPacket.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.
int	calcLength()	This method calculates the value length() will return by adding up the lengths of byte arrays in the list getRawFields() returns.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one using return values of getRawData().
MacAddress	getAddress1()
MacAddress	getAddress2()
MacAddress	getAddress3()
short	getDuration()
int	getDurationAsInt()
Dot11FrameControl	getFrameControl()
protected abstract String	getHeaderName()
Dot11HtControl	getHtControl()
protected List<byte[]>	getRawFields()	Returns a list of byte arrays which represents this header's fields.
Dot11SequenceControl	getSequenceControl()

Methods inherited from class AbstractPacket.AbstractHeader

buildHexString, buildRawData, getRawData, hashCode, length, 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

FRAME_CONTROL_OFFSET

private static final int FRAME_CONTROL_OFFSET

See Also:

• Constant Field Values

FRAME_CONTROL_SIZE

private static final int FRAME_CONTROL_SIZE

See Also:

• Constant Field Values

DURATION_OFFSET

private static final int DURATION_OFFSET

See Also:

• Constant Field Values

DURATION_SIZE

private static final int DURATION_SIZE

See Also:

• Constant Field Values

ADDRESS1_OFFSET

private static final int ADDRESS1_OFFSET

See Also:

• Constant Field Values

ADDRESS1_SIZE

private static final int ADDRESS1_SIZE

See Also:

• Constant Field Values

ADDRESS2_OFFSET

private static final int ADDRESS2_OFFSET

See Also:

• Constant Field Values

ADDRESS2_SIZE

private static final int ADDRESS2_SIZE

See Also:

• Constant Field Values

ADDRESS3_OFFSET

private static final int ADDRESS3_OFFSET

See Also:

• Constant Field Values

ADDRESS3_SIZE

private static final int ADDRESS3_SIZE

See Also:

• Constant Field Values

SEQUENCE_CONTROL_OFFSET

private static final int SEQUENCE_CONTROL_OFFSET

See Also:

• Constant Field Values

SEQUENCE_CONTROL_SIZE

private static final int SEQUENCE_CONTROL_SIZE

See Also:

• Constant Field Values

HT_CONTROL_OFFSET

private static final int HT_CONTROL_OFFSET

See Also:

• Constant Field Values

HT_CONTROL_SIZE

private static final int HT_CONTROL_SIZE

See Also:

• Constant Field Values

DOT11_HEADER_MIN_SIZE

private static final int DOT11_HEADER_MIN_SIZE

See Also:

• Constant Field Values

frameControl

private final Dot11FrameControl frameControl

duration

private final short duration

address1

private final MacAddress address1

address2

private final MacAddress address2

address3

private final MacAddress address3

sequenceControl

private final Dot11SequenceControl sequenceControl

htControl

private final Dot11HtControl htControl

Constructor Details

Dot11ManagementHeader

protected Dot11ManagementHeader(byte[] rawData,
 int offset,
 int length)
                         throws IllegalRawDataException

Parameters:

rawData - rawData

offset - offset

length - length

Throws:

IllegalRawDataException - if parsing the raw data fails.

Dot11ManagementHeader

protected Dot11ManagementHeader(Dot11ManagementPacket.Builder builder)

Parameters:

builder - builder

Method Details

getFrameControl

public Dot11FrameControl getFrameControl()

Returns:

frameControl

getDuration

public short getDuration()

Returns:

duration

getDurationAsInt

public int getDurationAsInt()

Returns:

duration

getAddress1

public MacAddress getAddress1()

Returns:

address1

getAddress2

public MacAddress getAddress2()

Returns:

address2

getAddress3

public MacAddress getAddress3()

Returns:

address3

getSequenceControl

public Dot11SequenceControl getSequenceControl()

Returns:

sequenceControl

getHtControl

public Dot11HtControl getHtControl()

Returns:

htControl. May be null.

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

calcLength

public int calcLength()

Description copied from class: AbstractPacket.AbstractHeader

This method calculates the value length() will return by adding up the lengths of byte arrays in the list getRawFields() returns.

Overrides:

calcLength in class AbstractPacket.AbstractHeader

Returns:

a calculated length

getHeaderName

protected abstract String getHeaderName()

Returns:

the header name.

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

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

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