| package org.onlab.onos.provider.of.packet.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.onos.net.ConnectPoint; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.PortNumber; |
| import org.onlab.onos.net.packet.DefaultInboundPacket; |
| import org.onlab.onos.net.packet.OutboundPacket; |
| import org.onlab.onos.net.packet.PacketProvider; |
| import org.onlab.onos.net.packet.PacketProviderRegistry; |
| import org.onlab.onos.net.packet.PacketProviderService; |
| import org.onlab.onos.net.provider.AbstractProvider; |
| import org.onlab.onos.net.provider.ProviderId; |
| import org.onlab.onos.of.controller.Dpid; |
| import org.onlab.onos.of.controller.OpenFlowController; |
| import org.onlab.onos.of.controller.OpenFlowPacketContext; |
| import org.onlab.onos.of.controller.PacketListener; |
| import org.slf4j.Logger; |
| |
| /** |
| * Provider which uses an OpenFlow controller to detect network |
| * infrastructure links. |
| */ |
| @Component(immediate = true) |
| public class OpenFlowPacketProvider extends AbstractProvider implements PacketProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PacketProviderRegistry providerRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenFlowController controller; |
| |
| private PacketProviderService providerService; |
| |
| private final InternalPacketProvider listener = new InternalPacketProvider(); |
| |
| /** |
| * Creates an OpenFlow link provider. |
| */ |
| public OpenFlowPacketProvider() { |
| super(new ProviderId("org.onlab.onos.provider.openflow")); |
| } |
| |
| @Activate |
| public void activate() { |
| providerService = providerRegistry.register(this); |
| controller.addPacketListener(1, listener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| providerRegistry.unregister(this); |
| controller.removePacketListener(listener); |
| providerService = null; |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void emit(OutboundPacket packet) { |
| |
| } |
| |
| |
| /** |
| * Internal Packet Provider implementation. |
| * |
| */ |
| private class InternalPacketProvider implements PacketListener { |
| |
| @Override |
| public void handlePacket(OpenFlowPacketContext pktCtx) { |
| DeviceId id = DeviceId.deviceId(Dpid.uri(pktCtx.dpid().value())); |
| |
| DefaultInboundPacket inPkt = new DefaultInboundPacket( |
| new ConnectPoint(id, PortNumber.portNumber(pktCtx.inPort())), |
| pktCtx.parsed(), ByteBuffer.wrap(pktCtx.unparsed())); |
| |
| OpenFlowCorePacketContext corePktCtx = |
| new OpenFlowCorePacketContext(0, inPkt, null, false, pktCtx); |
| providerService.processPacket(corePktCtx); |
| } |
| |
| } |
| |
| |
| } |