org.opendaylight.sfc.ofrenderer.openflow

Class SfcIpv4PacketInHandler

java.lang.Object

org.opendaylight.sfc.ofrenderer.openflow.SfcIpv4PacketInHandler

All Implemented Interfaces:

AutoCloseable, EventListener, org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener, org.opendaylight.yangtools.yang.binding.NotificationListener

public class SfcIpv4PacketInHandler
extends Object
implements org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener, AutoCloseable

The PacketIn rule will be triggered by the TransportEgress table when a TCP Proxy SF is being used. This class listens for IPv4 packets and will populate the PathMapperAcl table with 2 rules using the Packet's source/dest IP addresses: Rule 1: if(IpSrc == PacketInIpSrc AND IpDst == PacketInIpDst) then (set metadata to uplink RSP pathId and goto TransportEgress table) Rule 2: if(IpSrc == PacketInIpDst AND IpDst == PacketInIpSrc) then (set metadata to downlink RSP pathId and goto TransportEgress table)

Since a TCP Proxy SF will generate packets, the SFF wont know what to do with them unless we add the above rules. Upon receiving a TCP Syn from the client, the SF will establish a connection with the client (send TCP SynAck to client), and then establish a separate connection with the server (send TCP Syn to server).

Field Summary

Fields

Modifier and Type	Field and Description
static int	ETHERTYPE_IPV4

Constructor Summary

Constructors

Constructor and Description
SfcIpv4PacketInHandler(SfcOfFlowProgrammerImpl flowProgrammer)

Method Summary

Modifier and Type	Method and Description
void	close()
int	getBufferSize()
int	getMaxBufferTime()
int	getPacketCountPurge()
void	onPacketReceived(org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived packetIn) The handler function for IPv4 PktIn packets.
void	setMaxBufferTime(int maxBufferTime)
void	setPacketCountPurge(int packetCountPurge)

Methods inherited from class java.lang.Object

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

Field Detail

ETHERTYPE_IPV4

public static final int ETHERTYPE_IPV4

See Also:

Constant Field Values

Constructor Detail

SfcIpv4PacketInHandler

public SfcIpv4PacketInHandler(SfcOfFlowProgrammerImpl flowProgrammer)

Method Detail

getMaxBufferTime

public int getMaxBufferTime()

setMaxBufferTime

public void setMaxBufferTime(int maxBufferTime)

getPacketCountPurge

public int getPacketCountPurge()

setPacketCountPurge

public void setPacketCountPurge(int packetCountPurge)

getBufferSize

public int getBufferSize()

onPacketReceived

public void onPacketReceived(org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketReceived packetIn)

The handler function for IPv4 PktIn packets.

Specified by:

onPacketReceived in interface org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingListener

Parameters:

packetIn - The incoming packet.

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception