tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 1 | package org.onlab.onos.provider.of.link.impl; |
| 2 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 5 | import java.util.Map; |
| 6 | import java.util.concurrent.ConcurrentHashMap; |
| 7 | |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 8 | import org.apache.felix.scr.annotations.Activate; |
| 9 | import org.apache.felix.scr.annotations.Component; |
| 10 | import org.apache.felix.scr.annotations.Deactivate; |
| 11 | import org.apache.felix.scr.annotations.Reference; |
| 12 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 13 | import org.onlab.onos.net.ConnectPoint; |
| 14 | import org.onlab.onos.net.DeviceId; |
| 15 | import org.onlab.onos.net.PortNumber; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 16 | import org.onlab.onos.net.link.LinkProvider; |
tom | 96dfcab | 2014-08-28 09:26:03 -0700 | [diff] [blame] | 17 | import org.onlab.onos.net.link.LinkProviderRegistry; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 18 | import org.onlab.onos.net.link.LinkProviderService; |
| 19 | import org.onlab.onos.net.provider.AbstractProvider; |
| 20 | import org.onlab.onos.net.provider.ProviderId; |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 21 | import org.onlab.onos.of.controller.Dpid; |
tom | 5f38b3a | 2014-08-27 23:50:54 -0700 | [diff] [blame] | 22 | import org.onlab.onos.of.controller.OpenFlowController; |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 23 | import org.onlab.onos.of.controller.OpenFlowSwitchListener; |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 24 | import org.onlab.onos.of.controller.PacketContext; |
| 25 | import org.onlab.onos.of.controller.PacketListener; |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 26 | import org.onlab.timer.Timer; |
| 27 | import org.projectfloodlight.openflow.protocol.OFPortConfig; |
| 28 | import org.projectfloodlight.openflow.protocol.OFPortDesc; |
| 29 | import org.projectfloodlight.openflow.protocol.OFPortState; |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 30 | import org.projectfloodlight.openflow.protocol.OFPortStatus; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 31 | import org.slf4j.Logger; |
tom | 5f38b3a | 2014-08-27 23:50:54 -0700 | [diff] [blame] | 32 | |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 33 | /** |
tom | b1260e4 | 2014-08-26 18:39:57 -0700 | [diff] [blame] | 34 | * Provider which uses an OpenFlow controller to detect network |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 35 | * infrastructure links. |
| 36 | */ |
tom | b1260e4 | 2014-08-26 18:39:57 -0700 | [diff] [blame] | 37 | @Component(immediate = true) |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 38 | public class OpenFlowLinkProvider extends AbstractProvider implements LinkProvider { |
| 39 | |
tom | 5f38b3a | 2014-08-27 23:50:54 -0700 | [diff] [blame] | 40 | private final Logger log = getLogger(getClass()); |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 41 | |
| 42 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
tom | 96dfcab | 2014-08-28 09:26:03 -0700 | [diff] [blame] | 43 | protected LinkProviderRegistry providerRegistry; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 44 | |
tom | 5f38b3a | 2014-08-27 23:50:54 -0700 | [diff] [blame] | 45 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 46 | protected OpenFlowController controller; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 47 | |
tom | 5f38b3a | 2014-08-27 23:50:54 -0700 | [diff] [blame] | 48 | private LinkProviderService providerService; |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 49 | |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 50 | private final boolean useBDDP = true; |
| 51 | |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 52 | private final InternalLinkProvider listener = new InternalLinkProvider(); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 53 | |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 54 | /** |
| 55 | * Creates an OpenFlow link provider. |
| 56 | */ |
| 57 | public OpenFlowLinkProvider() { |
| 58 | super(new ProviderId("org.onlab.onos.provider.of.link")); |
| 59 | } |
| 60 | |
| 61 | @Activate |
| 62 | public void activate() { |
tom | 96dfcab | 2014-08-28 09:26:03 -0700 | [diff] [blame] | 63 | providerService = providerRegistry.register(this); |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 64 | controller.addListener(listener); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 65 | controller.addPacketListener(0, listener); |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 66 | log.info("Started"); |
| 67 | } |
| 68 | |
| 69 | @Deactivate |
| 70 | public void deactivate() { |
tom | 96dfcab | 2014-08-28 09:26:03 -0700 | [diff] [blame] | 71 | providerRegistry.unregister(this); |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 72 | controller.removeListener(listener); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 73 | controller.removePacketListener(listener); |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 74 | providerService = null; |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 75 | Timer.getTimer().stop(); |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 76 | log.info("Stopped"); |
| 77 | } |
| 78 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 79 | |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 80 | private class InternalLinkProvider implements PacketListener, OpenFlowSwitchListener { |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 81 | |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 82 | private final Map<Dpid, LinkDiscovery> discoverers = new ConcurrentHashMap<>(); |
| 83 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 84 | @Override |
| 85 | public void handlePacket(PacketContext pktCtx) { |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 86 | LinkDiscovery ld = discoverers.get(pktCtx.dpid()); |
| 87 | if (ld == null) { |
| 88 | return; |
| 89 | } |
alshabib | 9ee6817 | 2014-09-09 14:45:14 -0700 | [diff] [blame] | 90 | ld.handleLLDP(pktCtx.unparsed(), |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 91 | pktCtx.inPort()); |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 92 | |
| 93 | } |
| 94 | |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 95 | @Override |
| 96 | public void switchAdded(Dpid dpid) { |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 97 | discoverers.put(dpid, new LinkDiscovery(controller.getSwitch(dpid), |
| 98 | controller, providerService, useBDDP)); |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 99 | |
| 100 | } |
| 101 | |
| 102 | @Override |
| 103 | public void switchRemoved(Dpid dpid) { |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 104 | LinkDiscovery ld = this.discoverers.remove(dpid); |
| 105 | if (ld != null) { |
| 106 | ld.removeAllPorts(); |
| 107 | } |
| 108 | providerService.linksVanished( |
| 109 | DeviceId.deviceId("of:" + Long.toHexString(dpid.value()))); |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 110 | } |
| 111 | |
| 112 | @Override |
| 113 | public void portChanged(Dpid dpid, OFPortStatus status) { |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 114 | LinkDiscovery ld = discoverers.get(dpid); |
| 115 | if (ld == null) { |
| 116 | return; |
| 117 | } |
| 118 | final OFPortDesc port = status.getDesc(); |
| 119 | final boolean enabled = !port.getState().contains(OFPortState.LINK_DOWN) && |
| 120 | !port.getConfig().contains(OFPortConfig.PORT_DOWN); |
| 121 | if (enabled) { |
| 122 | ld.addPort(port); |
| 123 | } else { |
| 124 | ConnectPoint cp = new ConnectPoint( |
| 125 | DeviceId.deviceId("of:" + Long.toHexString(dpid.value())), |
| 126 | PortNumber.portNumber(port.getPortNo().getPortNumber())); |
| 127 | providerService.linksVanished(cp); |
alshabib | a159a32 | 2014-09-09 14:50:51 -0700 | [diff] [blame] | 128 | ld.removePort(port); |
alshabib | df652ad | 2014-09-09 11:53:19 -0700 | [diff] [blame] | 129 | } |
alshabib | 289652c | 2014-09-07 19:09:28 -0700 | [diff] [blame] | 130 | |
| 131 | } |
| 132 | |
alshabib | c4901cd | 2014-09-05 16:50:40 -0700 | [diff] [blame] | 133 | } |
| 134 | |
tom | e06f855 | 2014-08-26 16:58:42 -0700 | [diff] [blame] | 135 | } |