Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 1 | package org.onosproject.provider.pcep.packet.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
| 5 | import org.apache.felix.scr.annotations.Activate; |
| 6 | import org.apache.felix.scr.annotations.Component; |
| 7 | import org.apache.felix.scr.annotations.Deactivate; |
| 8 | import org.apache.felix.scr.annotations.Reference; |
| 9 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 10 | import org.apache.felix.scr.annotations.Service; |
| 11 | import org.onlab.packet.Ethernet; |
| 12 | import org.onlab.packet.IPv4; |
Avantika-Huawei | f849aab | 2016-06-21 22:29:15 +0530 | [diff] [blame] | 13 | import org.onlab.packet.MacAddress; |
Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 14 | import org.onlab.packet.TCP; |
Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 15 | import org.onosproject.net.ConnectPoint; |
Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 16 | import org.onosproject.net.DeviceId; |
| 17 | import org.onosproject.net.PortNumber; |
| 18 | import org.onosproject.net.device.DeviceService; |
| 19 | import org.onosproject.net.packet.DefaultInboundPacket; |
| 20 | import org.onosproject.net.packet.DefaultPacketContext; |
| 21 | import org.onosproject.net.packet.InboundPacket; |
| 22 | import org.onosproject.net.packet.OutboundPacket; |
| 23 | import org.onosproject.net.packet.PacketProvider; |
| 24 | import org.onosproject.net.packet.PacketProviderRegistry; |
| 25 | import org.onosproject.net.packet.PacketProviderService; |
| 26 | import org.onosproject.net.provider.AbstractProvider; |
| 27 | import org.onosproject.net.provider.ProviderId; |
| 28 | import org.onosproject.pcep.controller.PccId; |
| 29 | import org.onosproject.pcep.controller.PcepClientController; |
| 30 | import org.onosproject.pcep.controller.PcepPacketListener; |
| 31 | import org.slf4j.Logger; |
| 32 | |
| 33 | /** |
| 34 | * Provider which uses an PCEP controller to process packets. |
| 35 | */ |
| 36 | @Component(immediate = true) |
| 37 | @Service |
| 38 | public class PcepPacketProvider extends AbstractProvider implements PacketProvider { |
| 39 | |
| 40 | private static final Logger log = getLogger(PcepPacketProvider.class); |
| 41 | static final String PROVIDER_ID = "org.onosproject.provider.packet.pcep"; |
| 42 | |
| 43 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 44 | protected PacketProviderRegistry packetProviderRegistry; |
| 45 | |
| 46 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 47 | protected PcepClientController pcepClientController; |
| 48 | |
| 49 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 50 | protected DeviceService deviceService; |
| 51 | |
| 52 | PacketProviderService packetProviderService; |
| 53 | |
| 54 | private InnerPacketProvider listener = new InnerPacketProvider(); |
| 55 | public static final String LSRID = "lsrId"; |
| 56 | public static final int PCEP_PORT = 4189; |
| 57 | |
| 58 | /** |
| 59 | * Creates a Packet provider. |
| 60 | */ |
| 61 | public PcepPacketProvider() { |
| 62 | super(new ProviderId("pcep", PROVIDER_ID)); |
| 63 | } |
| 64 | |
| 65 | @Activate |
| 66 | public void activate() { |
| 67 | packetProviderService = packetProviderRegistry.register(this); |
| 68 | pcepClientController.addPacketListener(listener); |
| 69 | log.info("Started"); |
| 70 | } |
| 71 | |
| 72 | @Deactivate |
| 73 | public void deactivate() { |
| 74 | packetProviderRegistry.unregister(this); |
| 75 | pcepClientController.removePacketListener(listener); |
| 76 | log.info("Stopped"); |
| 77 | } |
| 78 | |
| 79 | private class InnerPacketProvider implements PcepPacketListener { |
| 80 | @Override |
| 81 | public void sendPacketIn(PccId pccId) { |
| 82 | TCP tcp = new TCP(); |
| 83 | // Set the well known PCEP port. To be used to decide to process/discard the packet while processing. |
| 84 | tcp.setDestinationPort(PCEP_PORT); |
| 85 | |
| 86 | IPv4 ipv4 = new IPv4(); |
| 87 | ipv4.setProtocol(IPv4.PROTOCOL_TCP); |
| 88 | ipv4.setPayload(tcp); |
| 89 | |
| 90 | Ethernet eth = new Ethernet(); |
| 91 | eth.setEtherType(Ethernet.TYPE_IPV4); |
Avantika-Huawei | f849aab | 2016-06-21 22:29:15 +0530 | [diff] [blame] | 92 | eth.setDestinationMACAddress(MacAddress.NONE); |
Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 93 | eth.setPayload(ipv4); |
| 94 | |
| 95 | // Get lsrId of the PCEP client from the PCC ID. Session info is based on lsrID. |
| 96 | String lsrId = String.valueOf(pccId.ipAddress()); |
Avantika-Huawei | 28b5375 | 2016-06-23 17:04:49 +0530 | [diff] [blame] | 97 | DeviceId pccDeviceId = DeviceId.deviceId(lsrId); |
Avantika-Huawei | d1e36bd | 2016-05-26 12:47:16 +0530 | [diff] [blame] | 98 | |
| 99 | InboundPacket inPkt = new DefaultInboundPacket(new ConnectPoint(pccDeviceId, |
| 100 | PortNumber.portNumber(PCEP_PORT)), |
| 101 | eth, null); |
| 102 | |
| 103 | packetProviderService.processPacket(new PcepPacketContext(inPkt, null)); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | // Minimal PacketContext to make core and applications happy. |
| 108 | private final class PcepPacketContext extends DefaultPacketContext { |
| 109 | private PcepPacketContext(InboundPacket inPkt, OutboundPacket outPkt) { |
| 110 | super(System.currentTimeMillis(), inPkt, outPkt, false); |
| 111 | } |
| 112 | |
| 113 | @Override |
| 114 | public void send() { |
| 115 | // We don't send anything out. |
| 116 | return; |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | @Override |
| 121 | public void emit(OutboundPacket packet) { |
| 122 | // Nothing to emit |
| 123 | return; |
| 124 | |
| 125 | } |
| 126 | } |