| package org.onosproject.provider.pcep.packet.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| 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.apache.felix.scr.annotations.Service; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.TCP; |
| import org.onosproject.net.AnnotationKeys; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.packet.DefaultInboundPacket; |
| import org.onosproject.net.packet.DefaultPacketContext; |
| import org.onosproject.net.packet.InboundPacket; |
| import org.onosproject.net.packet.OutboundPacket; |
| import org.onosproject.net.packet.PacketProvider; |
| import org.onosproject.net.packet.PacketProviderRegistry; |
| import org.onosproject.net.packet.PacketProviderService; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.pcep.controller.PccId; |
| import org.onosproject.pcep.controller.PcepClientController; |
| import org.onosproject.pcep.controller.PcepPacketListener; |
| import org.slf4j.Logger; |
| |
| /** |
| * Provider which uses an PCEP controller to process packets. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class PcepPacketProvider extends AbstractProvider implements PacketProvider { |
| |
| private static final Logger log = getLogger(PcepPacketProvider.class); |
| static final String PROVIDER_ID = "org.onosproject.provider.packet.pcep"; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PacketProviderRegistry packetProviderRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PcepClientController pcepClientController; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| PacketProviderService packetProviderService; |
| |
| private InnerPacketProvider listener = new InnerPacketProvider(); |
| public static final String LSRID = "lsrId"; |
| public static final int PCEP_PORT = 4189; |
| |
| /** |
| * Creates a Packet provider. |
| */ |
| public PcepPacketProvider() { |
| super(new ProviderId("pcep", PROVIDER_ID)); |
| } |
| |
| @Activate |
| public void activate() { |
| packetProviderService = packetProviderRegistry.register(this); |
| pcepClientController.addPacketListener(listener); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| packetProviderRegistry.unregister(this); |
| pcepClientController.removePacketListener(listener); |
| log.info("Stopped"); |
| } |
| |
| private class InnerPacketProvider implements PcepPacketListener { |
| @Override |
| public void sendPacketIn(PccId pccId) { |
| TCP tcp = new TCP(); |
| // Set the well known PCEP port. To be used to decide to process/discard the packet while processing. |
| tcp.setDestinationPort(PCEP_PORT); |
| |
| IPv4 ipv4 = new IPv4(); |
| ipv4.setProtocol(IPv4.PROTOCOL_TCP); |
| ipv4.setPayload(tcp); |
| |
| Ethernet eth = new Ethernet(); |
| eth.setEtherType(Ethernet.TYPE_IPV4); |
| eth.setPayload(ipv4); |
| |
| // Get lsrId of the PCEP client from the PCC ID. Session info is based on lsrID. |
| String lsrId = String.valueOf(pccId.ipAddress()); |
| DeviceId pccDeviceId = null; |
| |
| // Find PCC deviceID from lsrId stored as annotations |
| Iterable<Device> devices = deviceService.getAvailableDevices(); |
| for (Device dev : devices) { |
| if ("L3".equals(dev.annotations().value(AnnotationKeys.TYPE)) |
| && lsrId.equals(dev.annotations().value(LSRID))) { |
| pccDeviceId = dev.id(); |
| break; |
| } |
| } |
| |
| if (pccDeviceId == null) { |
| return; |
| } |
| |
| InboundPacket inPkt = new DefaultInboundPacket(new ConnectPoint(pccDeviceId, |
| PortNumber.portNumber(PCEP_PORT)), |
| eth, null); |
| |
| packetProviderService.processPacket(new PcepPacketContext(inPkt, null)); |
| } |
| } |
| |
| // Minimal PacketContext to make core and applications happy. |
| private final class PcepPacketContext extends DefaultPacketContext { |
| private PcepPacketContext(InboundPacket inPkt, OutboundPacket outPkt) { |
| super(System.currentTimeMillis(), inPkt, outPkt, false); |
| } |
| |
| @Override |
| public void send() { |
| // We don't send anything out. |
| return; |
| } |
| } |
| |
| @Override |
| public void emit(OutboundPacket packet) { |
| // Nothing to emit |
| return; |
| |
| } |
| } |