nl.sidnlabs.pcap.util

Class UDPUtil

java.lang.Object

nl.sidnlabs.pcap.util.UDPUtil

public class UDPUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	UDP_HEADER_LEN_OFFSET
static int	UDP_HEADER_SIZE

Method Summary

Modifier and Type	Method and Description
static byte[]	extractPayload(byte[] packetData)
static int	getUdpChecksum(byte[] packetData, int ipStart, int ipHeaderLen)
static int	getUdpLen(byte[] packetData, int ipStart, int ipHeaderLen) Get size of udp packet payload

Methods inherited from class java.lang.Object

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

Field Detail

UDP_HEADER_SIZE

public static final int UDP_HEADER_SIZE

See Also:

Constant Field Values

UDP_HEADER_LEN_OFFSET

public static final int UDP_HEADER_LEN_OFFSET

See Also:

Constant Field Values

Method Detail

extractPayload

public static byte[] extractPayload(byte[] packetData)

getUdpLen

public static int getUdpLen(byte[] packetData,
                            int ipStart,
                            int ipHeaderLen)

Get size of udp packet payload

Parameters:

packetData -

ipStart -

ipHeaderLen -

Returns:

getUdpChecksum

public static int getUdpChecksum(byte[] packetData,
                                 int ipStart,
                                 int ipHeaderLen)