com.sun.tv.net

Class Packet

java.lang.Object

com.sun.tv.net.Packet

Direct Known Subclasses:

GenericPacket

public abstract class Packet
extends Object

Packet.java This is an abstract representing the top level of the network packet framework. By subclassing this class, you can provide a packet implementation with your own behaviour that may suit your protocol or device in a more efficient manner than GenericPacket. sritchie -- Apr 96 notes

Field Summary

Fields

Modifier and Type	Field and Description
int	dst_ip
protected int	hdr_offset
protected int	length
Packet	next
Packet	prev
int	src_ip
int	src_port

Constructor Summary

Constructors

Constructor and Description
Packet()

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	cksum(int offset, int len)
abstract Packet	copy()
int	dataLength()
abstract int	getByte(int off)
abstract void	getBytes(int src_offset, byte[] dst, int dst_offset, int len)
abstract long	getEthAddr(int off)
int	getHeaderOffset()
abstract int	getInt(int off)
abstract int	getShort(int off)
int	length()
abstract void	putByte(int x, int off)
abstract void	putBytes(byte[] src, int src_offset, int dst_offset, int len)
abstract void	putBytes(Packet pkt, int src_offset, int dst_offset, int len)
abstract void	putEthAddr(long x, int off)
abstract void	putInt(int x, int off)
abstract void	putShort(int x, int off)
abstract void	recycle()
void	setDataLength(int len)
void	setHeaderOffset(int off)
void	setLength(int len)
void	shiftHeader(int bytes)

Methods inherited from class java.lang.Object

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

Field Detail

next

public Packet next

prev

public Packet prev

src_port

public int src_port

src_ip

public int src_ip

dst_ip

public int dst_ip

length

protected int length

hdr_offset

protected int hdr_offset

Constructor Detail

Packet

public Packet()

Method Detail

recycle

public abstract void recycle()

copy

public abstract Packet copy()

cksum

public abstract int cksum(int offset,
        int len)

shiftHeader

public void shiftHeader(int bytes)

getHeaderOffset

public int getHeaderOffset()

setHeaderOffset

public void setHeaderOffset(int off)

length

public int length()

dataLength

public int dataLength()

setDataLength

public void setDataLength(int len)

setLength

public void setLength(int len)

getEthAddr

public abstract long getEthAddr(int off)

getInt

public abstract int getInt(int off)

getShort

public abstract int getShort(int off)

getByte

public abstract int getByte(int off)

getBytes

public abstract void getBytes(int src_offset,
            byte[] dst,
            int dst_offset,
            int len)

putEthAddr

public abstract void putEthAddr(long x,
              int off)

putInt

public abstract void putInt(int x,
          int off)

putShort

public abstract void putShort(int x,
            int off)

putByte

public abstract void putByte(int x,
           int off)

putBytes

public abstract void putBytes(byte[] src,
            int src_offset,
            int dst_offset,
            int len)

putBytes

public abstract void putBytes(Packet pkt,
            int src_offset,
            int dst_offset,
            int len)