net.sourceforge.jpcap.net
Class LinkLayer

java.lang.Object
  net.sourceforge.jpcap.net.LinkLayer

All Implemented Interfaces:

LinkLayers

public class LinkLayer

extends java.lang.Object

implements LinkLayers

Information about network link layers.

Field Summary

Fields inherited from interface net.sourceforge.jpcap.net.LinkLayers

ARCNET, ATM_CLIP, ATM_RFC1483, AX25, CHAOS, CHDLC, EN10MB, EN3MB, FDDI, IEEE802, IEEE802_11, LINUX_SLL, LOOP, NULL, PPP, PPP_BSDOS, PPP_SERIAL, PRONET, RAW, SLIP, SLIP_BSDOS, UNKNOWN

Constructor Summary

LinkLayer()

Method Summary

static java.lang.String	getDescription(int code) Fetch a link-layer type description.
static int	getLinkLayerLength(int layerType) Fetch the header length associated with various link-layer types.
static int	getProtoOffset(int layerType) Fetch the offset into the link-layer header where the protocol code can be found.

Methods inherited from class java.lang.Object

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

Constructor Detail

LinkLayer

public LinkLayer()

Method Detail

getLinkLayerLength

public static int getLinkLayerLength(int layerType)

Fetch the header length associated with various link-layer types.

Parameters:

layerType - the link-layer code

Returns:

the length of the header for the specified link-layer

getProtoOffset

public static int getProtoOffset(int layerType)

Fetch the offset into the link-layer header where the protocol code can be found. Returns -1 if there is no embedded protocol code.

Parameters:

layerType - the link-layer code

Returns:

the offset in bytes

getDescription

public static java.lang.String getDescription(int code)

Fetch a link-layer type description.

Parameters:

code - the code associated with the description.

Returns:

a description of the link-layer type.