jist.swans.mac
Class MacMessage.Data

java.lang.Object
  jist.swans.mac.MacMessage
      jist.swans.mac.MacMessage.Data

All Implemented Interfaces:

JistAPI.Timeless, Message

Enclosing class:

MacMessage

public static class MacMessage.Data
extends MacMessage

An 802_11 Data packet.

Since:

SWANS1.0

Author:

Rimon Barr <barr+jist@cs.cornell.edu>

Nested Class Summary

Nested classes/interfaces inherited from class jist.swans.mac.MacMessage

MacMessage.Ack, MacMessage.Cts, MacMessage.Data, MacMessage.Rts

Field Summary

private Message	body Packet data payload.
private MacAddress	dst Packet destination address.
private int	duration Packet transmission duration.
private short	frag Packet fragment number.
static short	HEADER_SIZE Packet header size.
static short	MAX_SEQ Packet sequence number limit.
private boolean	moreFrag Packet moreFlag bit.
private short	seq Packet sequence number.
private MacAddress	src Packet source address.

Fields inherited from class jist.swans.mac.MacMessage

TYPE_ACK, TYPE_CTS, TYPE_DATA, TYPE_RTS

Fields inherited from interface jist.swans.misc.Message

NULL

Constructor Summary

MacMessage.Data(MacAddress dst, MacAddress src, int duration, Message body)
Create 802_11 data packet.

MacMessage.Data(MacAddress dst, MacAddress src, int duration, short seq, short frag, boolean moreFrag, boolean retry, Message body)
Create 802_11 data packet.

Method Summary

Message	getBody() Return packet data payload.
void	getBytes(byte[] msg, int offset) Store packet into byte array.
MacAddress	getDst() Return packet destination address.
int	getDuration() Return packet transmission time.
short	getFrag() Return packet fragment number.
short	getSeq() Return packet sequence number.
int	getSize() Return packet size or Constants.ZERO_WIRE_SIZE.
MacAddress	getSrc() Return packet source address.

Methods inherited from class jist.swans.mac.MacMessage

getRetry, getType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HEADER_SIZE

public static final short HEADER_SIZE

Packet header size.

See Also:

Constant Field Values

MAX_SEQ

public static final short MAX_SEQ

Packet sequence number limit.

See Also:

Constant Field Values

dst

private MacAddress dst

Packet destination address.

src

private MacAddress src

Packet source address.

duration

private int duration

Packet transmission duration.

seq

private short seq

Packet sequence number.

frag

private short frag

Packet fragment number.

moreFrag

private boolean moreFrag

Packet moreFlag bit.

body

private Message body

Packet data payload.

Constructor Detail

MacMessage.Data

public MacMessage.Data(MacAddress dst,
                       MacAddress src,
                       int duration,
                       short seq,
                       short frag,
                       boolean moreFrag,
                       boolean retry,
                       Message body)

Create 802_11 data packet.

Parameters:

dst - packet destination address

src - packet source address

duration - packet transmission duration

seq - packet sequence number

frag - packet fragment number

moreFrag - packet moreFrag flag

retry - packet retry bit

body - packet data payload

MacMessage.Data

public MacMessage.Data(MacAddress dst,
                       MacAddress src,
                       int duration,
                       Message body)

Create 802_11 data packet.

Parameters:

dst - packet destination address

src - packet source address

duration - packet transmission duration

body - packet data payload

Method Detail

getDst

public MacAddress getDst()

Return packet destination address.

Specified by:

getDst in class MacMessage

Returns:

packet destination address

getSrc

public MacAddress getSrc()

Return packet source address.

Returns:

packet source address

getDuration

public int getDuration()

Return packet transmission time.

Specified by:

getDuration in class MacMessage

Returns:

packet transmission time

getSeq

public short getSeq()

Return packet sequence number.

Returns:

packet sequence number

getFrag

public short getFrag()

Return packet fragment number.

Returns:

packet fragment number

getBody

public Message getBody()

Return packet data payload.

Returns:

packet data payload

getSize

public int getSize()

Return packet size or Constants.ZERO_WIRE_SIZE.

Returns:

packet size

getBytes

public void getBytes(byte[] msg,
                     int offset)

Store packet into byte array.

Parameters:

msg - destination byte array

offset - byte array starting offset