org.opendaylight.vtn.manager.internal.packet.cache

Interface L4Packet

All Superinterfaces:

CachedPacket, Cloneable, Layer4Header, ProtocolHeader

All Known Implementing Classes:

IcmpPacket, PortProtoPacket, TcpPacket, UdpPacket

public interface L4Packet
extends CachedPacket, Layer4Header

L4Packet defines interfaces that implements cache for layer 4 protocol header.

Method Summary

Modifier and Type	Method and Description
L4Packet	clone() Return a deep copy of this instance.
VTNLayer4Match	createMatch(Set<FlowMatchType> fields) Construct match fields to test layer 4 protocol header in this packet.
boolean	updateChecksum(Inet4Packet ipv4) Calculate the checksum of the packet, and set the computed checksum into a Packet instance configured in this instance.

Methods inherited from interface org.opendaylight.vtn.manager.internal.packet.cache.CachedPacket

commit, getPacket

Methods inherited from interface org.opendaylight.vtn.manager.internal.util.packet.ProtocolHeader

setDescription

Method Detail

createMatch

VTNLayer4Match createMatch(Set<FlowMatchType> fields)
                    throws RpcException

Construct match fields to test layer 4 protocol header in this packet.

Note that this method creates match fields that matches the original packet. Any modification to the packet is ignored.

Parameters:

fields - A set of FlowMatchType instances corresponding to match fields to be tested.

Returns:

A VTNLayer4Match instance.

Throws:

RpcException - This packet is broken.

updateChecksum

boolean updateChecksum(Inet4Packet ipv4)
                throws VTNException

Calculate the checksum of the packet, and set the computed checksum into a Packet instance configured in this instance.

Parameters:

ipv4 - An Inet4Packet instance that contains this packet.

Returns:

true is returned if the checksum field was updated. false is returned if the packet was not modified.

Throws:

VTNException - An error occurred.

clone

L4Packet clone()

Return a deep copy of this instance.

Specified by:

clone in interface CachedPacket

Returns:

A deep copy of this instance.