| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.segmentrouting; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Multimap; |
| 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.ICMP6; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.IPv6; |
| import org.onlab.packet.IpPrefix; |
| import org.onlab.packet.VlanId; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.event.Event; |
| import org.onosproject.incubator.net.config.basics.InterfaceConfig; |
| import org.onosproject.incubator.net.config.basics.McastConfig; |
| import org.onosproject.incubator.net.intf.Interface; |
| import org.onosproject.incubator.net.intf.InterfaceService; |
| import org.onosproject.incubator.net.routing.RouteEvent; |
| import org.onosproject.incubator.net.routing.RouteListener; |
| import org.onosproject.incubator.net.routing.RouteService; |
| import org.onosproject.incubator.net.neighbour.NeighbourResolutionService; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Link; |
| import org.onosproject.net.Port; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.basics.SubjectFactories; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.host.HostEvent; |
| import org.onosproject.net.host.HostListener; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.net.link.LinkEvent; |
| import org.onosproject.net.link.LinkListener; |
| import org.onosproject.net.link.LinkService; |
| import org.onosproject.net.mcast.McastEvent; |
| import org.onosproject.net.mcast.McastListener; |
| import org.onosproject.net.mcast.MulticastRouteService; |
| import org.onosproject.net.packet.InboundPacket; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketProcessor; |
| import org.onosproject.net.packet.PacketService; |
| import org.onosproject.net.topology.PathService; |
| import org.onosproject.net.topology.TopologyService; |
| import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException; |
| import org.onosproject.segmentrouting.config.DeviceConfiguration; |
| import org.onosproject.segmentrouting.config.PwaasConfig; |
| import org.onosproject.segmentrouting.config.SegmentRoutingDeviceConfig; |
| import org.onosproject.segmentrouting.config.SegmentRoutingAppConfig; |
| import org.onosproject.segmentrouting.config.XConnectConfig; |
| import org.onosproject.segmentrouting.grouphandler.DefaultGroupHandler; |
| import org.onosproject.segmentrouting.grouphandler.DestinationSet; |
| import org.onosproject.segmentrouting.grouphandler.NextNeighbors; |
| import org.onosproject.segmentrouting.storekey.DestinationSetNextObjectiveStoreKey; |
| import org.onosproject.segmentrouting.storekey.PortNextObjectiveStoreKey; |
| import org.onosproject.segmentrouting.storekey.VlanNextObjectiveStoreKey; |
| import org.onosproject.segmentrouting.storekey.XConnectStoreKey; |
| import org.onosproject.segmentrouting.pwaas.L2TunnelHandler; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.EventuallyConsistentMap; |
| import org.onosproject.store.service.EventuallyConsistentMapBuilder; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.store.service.WallClockTimestamp; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.ScheduledFuture; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.stream.Collectors; |
| |
| import static com.google.common.base.Preconditions.checkState; |
| import static org.onlab.packet.Ethernet.TYPE_ARP; |
| import static org.onlab.util.Tools.groupedThreads; |
| |
| /** |
| * Segment routing manager. |
| */ |
| @Service |
| @Component(immediate = true) |
| public class SegmentRoutingManager implements SegmentRoutingService { |
| |
| private static Logger log = LoggerFactory.getLogger(SegmentRoutingManager.class); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private ComponentConfigService compCfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| private NeighbourResolutionService neighbourResolutionService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public PathService pathService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| PacketService packetService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public FlowObjectiveService flowObjectiveService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| LinkService linkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| MulticastRouteService multicastRouteService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| TopologyService topologyService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| RouteService routeService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public NetworkConfigRegistry cfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| public InterfaceService interfaceService; |
| |
| ArpHandler arpHandler = null; |
| IcmpHandler icmpHandler = null; |
| IpHandler ipHandler = null; |
| RoutingRulePopulator routingRulePopulator = null; |
| ApplicationId appId; |
| DeviceConfiguration deviceConfiguration = null; |
| |
| DefaultRoutingHandler defaultRoutingHandler = null; |
| private TunnelHandler tunnelHandler = null; |
| private PolicyHandler policyHandler = null; |
| private InternalPacketProcessor processor = null; |
| private InternalLinkListener linkListener = null; |
| private InternalDeviceListener deviceListener = null; |
| private AppConfigHandler appCfgHandler = null; |
| XConnectHandler xConnectHandler = null; |
| private McastHandler mcastHandler = null; |
| private HostHandler hostHandler = null; |
| private RouteHandler routeHandler = null; |
| private SegmentRoutingNeighbourDispatcher neighbourHandler = null; |
| private L2TunnelHandler l2TunnelHandler = null; |
| private InternalEventHandler eventHandler = new InternalEventHandler(); |
| private final InternalHostListener hostListener = new InternalHostListener(); |
| private final InternalConfigListener cfgListener = new InternalConfigListener(this); |
| private final InternalMcastListener mcastListener = new InternalMcastListener(); |
| private final InternalRouteEventListener routeListener = new InternalRouteEventListener(); |
| |
| private ScheduledExecutorService executorService = Executors |
| .newScheduledThreadPool(1, groupedThreads("SegmentRoutingManager", "event-%d", log)); |
| |
| @SuppressWarnings("unused") |
| private static ScheduledFuture<?> eventHandlerFuture = null; |
| @SuppressWarnings("rawtypes") |
| private ConcurrentLinkedQueue<Event> eventQueue = new ConcurrentLinkedQueue<>(); |
| private Map<DeviceId, DefaultGroupHandler> groupHandlerMap = |
| new ConcurrentHashMap<>(); |
| /** |
| * Per device next objective ID store with (device id + destination set) as key. |
| */ |
| EventuallyConsistentMap<DestinationSetNextObjectiveStoreKey, NextNeighbors> |
| dsNextObjStore = null; |
| /** |
| * Per device next objective ID store with (device id + subnet) as key. |
| */ |
| EventuallyConsistentMap<VlanNextObjectiveStoreKey, Integer> |
| vlanNextObjStore = null; |
| /** |
| * Per device next objective ID store with (device id + port) as key. |
| */ |
| EventuallyConsistentMap<PortNextObjectiveStoreKey, Integer> |
| portNextObjStore = null; |
| |
| // Local store for all links seen and their present status, used for |
| // optimized routing. The existence of the link in the keys is enough to know |
| // if the link has been "seen-before" by this instance of the controller. |
| // The boolean value indicates if the link is currently up or not. |
| // XXX Currently the optimized routing logic depends on "forgetting" a link |
| // when a switch goes down, but "remembering" it when only the link goes down. |
| // Consider changing this logic so we can use the Link Service instead of |
| // a local cache. |
| private Map<Link, Boolean> seenLinks = new ConcurrentHashMap<>(); |
| |
| private EventuallyConsistentMap<String, Tunnel> tunnelStore = null; |
| private EventuallyConsistentMap<String, Policy> policyStore = null; |
| |
| private AtomicBoolean programmingScheduled = new AtomicBoolean(); |
| |
| private final ConfigFactory<DeviceId, SegmentRoutingDeviceConfig> deviceConfigFactory = |
| new ConfigFactory<DeviceId, SegmentRoutingDeviceConfig>( |
| SubjectFactories.DEVICE_SUBJECT_FACTORY, |
| SegmentRoutingDeviceConfig.class, "segmentrouting") { |
| @Override |
| public SegmentRoutingDeviceConfig createConfig() { |
| return new SegmentRoutingDeviceConfig(); |
| } |
| }; |
| |
| private final ConfigFactory<ApplicationId, SegmentRoutingAppConfig> appConfigFactory = |
| new ConfigFactory<ApplicationId, SegmentRoutingAppConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, |
| SegmentRoutingAppConfig.class, "segmentrouting") { |
| @Override |
| public SegmentRoutingAppConfig createConfig() { |
| return new SegmentRoutingAppConfig(); |
| } |
| }; |
| |
| private final ConfigFactory<ApplicationId, XConnectConfig> xConnectConfigFactory = |
| new ConfigFactory<ApplicationId, XConnectConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, |
| XConnectConfig.class, "xconnect") { |
| @Override |
| public XConnectConfig createConfig() { |
| return new XConnectConfig(); |
| } |
| }; |
| |
| private ConfigFactory<ApplicationId, McastConfig> mcastConfigFactory = |
| new ConfigFactory<ApplicationId, McastConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, |
| McastConfig.class, "multicast") { |
| @Override |
| public McastConfig createConfig() { |
| return new McastConfig(); |
| } |
| }; |
| |
| private final ConfigFactory<ApplicationId, PwaasConfig> pwaasConfigFactory = |
| new ConfigFactory<ApplicationId, PwaasConfig>( |
| SubjectFactories.APP_SUBJECT_FACTORY, |
| PwaasConfig.class, "pwaas") { |
| @Override |
| public PwaasConfig createConfig() { |
| return new PwaasConfig(); |
| } |
| }; |
| |
| private static final Object THREAD_SCHED_LOCK = new Object(); |
| private static int numOfEventsQueued = 0; |
| private static int numOfEventsExecuted = 0; |
| private static int numOfHandlerExecution = 0; |
| private static int numOfHandlerScheduled = 0; |
| |
| /** |
| * Segment Routing App ID. |
| */ |
| public static final String APP_NAME = "org.onosproject.segmentrouting"; |
| |
| /** |
| * The default VLAN ID assigned to the interfaces without subnet config. |
| */ |
| public static final VlanId INTERNAL_VLAN = VlanId.vlanId((short) 4094); |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(APP_NAME); |
| |
| log.debug("Creating EC map nsnextobjectivestore"); |
| EventuallyConsistentMapBuilder<DestinationSetNextObjectiveStoreKey, NextNeighbors> |
| nsNextObjMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| dsNextObjStore = nsNextObjMapBuilder |
| .withName("nsnextobjectivestore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| log.trace("Current size {}", dsNextObjStore.size()); |
| |
| log.debug("Creating EC map vlannextobjectivestore"); |
| EventuallyConsistentMapBuilder<VlanNextObjectiveStoreKey, Integer> |
| vlanNextObjMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| vlanNextObjStore = vlanNextObjMapBuilder |
| .withName("vlannextobjectivestore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| |
| log.debug("Creating EC map subnetnextobjectivestore"); |
| EventuallyConsistentMapBuilder<PortNextObjectiveStoreKey, Integer> |
| portNextObjMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| portNextObjStore = portNextObjMapBuilder |
| .withName("portnextobjectivestore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| |
| EventuallyConsistentMapBuilder<String, Tunnel> tunnelMapBuilder = |
| storageService.eventuallyConsistentMapBuilder(); |
| tunnelStore = tunnelMapBuilder |
| .withName("tunnelstore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| |
| EventuallyConsistentMapBuilder<String, Policy> policyMapBuilder = |
| storageService.eventuallyConsistentMapBuilder(); |
| policyStore = policyMapBuilder |
| .withName("policystore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| |
| compCfgService.preSetProperty("org.onosproject.net.group.impl.GroupManager", |
| "purgeOnDisconnection", "true"); |
| compCfgService.preSetProperty("org.onosproject.net.flow.impl.FlowRuleManager", |
| "purgeOnDisconnection", "true"); |
| compCfgService.preSetProperty("org.onosproject.provider.host.impl.HostLocationProvider", |
| "requestInterceptsEnabled", "false"); |
| compCfgService.preSetProperty("org.onosproject.incubator.net.neighbour.impl.NeighbourResolutionManager", |
| "requestInterceptsEnabled", "false"); |
| compCfgService.preSetProperty("org.onosproject.dhcprelay.DhcpRelayManager", |
| "arpEnabled", "false"); |
| compCfgService.preSetProperty("org.onosproject.net.host.impl.HostManager", |
| "greedyLearningIpv6", "true"); |
| compCfgService.preSetProperty("org.onosproject.routing.cpr.ControlPlaneRedirectManager", |
| "forceUnprovision", "true"); |
| compCfgService.preSetProperty("org.onosproject.incubator.store.routing.impl.RouteStoreImpl", |
| "distributed", "true"); |
| |
| processor = new InternalPacketProcessor(); |
| linkListener = new InternalLinkListener(); |
| deviceListener = new InternalDeviceListener(); |
| appCfgHandler = new AppConfigHandler(this); |
| xConnectHandler = new XConnectHandler(this); |
| mcastHandler = new McastHandler(this); |
| hostHandler = new HostHandler(this); |
| routeHandler = new RouteHandler(this); |
| neighbourHandler = new SegmentRoutingNeighbourDispatcher(this); |
| l2TunnelHandler = new L2TunnelHandler(this); |
| |
| cfgService.addListener(cfgListener); |
| cfgService.registerConfigFactory(deviceConfigFactory); |
| cfgService.registerConfigFactory(appConfigFactory); |
| cfgService.registerConfigFactory(xConnectConfigFactory); |
| cfgService.registerConfigFactory(mcastConfigFactory); |
| cfgService.registerConfigFactory(pwaasConfigFactory); |
| hostService.addListener(hostListener); |
| packetService.addProcessor(processor, PacketProcessor.director(2)); |
| linkService.addListener(linkListener); |
| deviceService.addListener(deviceListener); |
| multicastRouteService.addListener(mcastListener); |
| routeService.addListener(routeListener); |
| |
| cfgListener.configureNetwork(); |
| |
| log.info("Started"); |
| } |
| |
| private KryoNamespace.Builder createSerializer() { |
| return new KryoNamespace.Builder() |
| .register(KryoNamespaces.API) |
| .register(DestinationSetNextObjectiveStoreKey.class, |
| VlanNextObjectiveStoreKey.class, |
| DestinationSet.class, |
| NextNeighbors.class, |
| Tunnel.class, |
| DefaultTunnel.class, |
| Policy.class, |
| TunnelPolicy.class, |
| Policy.Type.class, |
| PortNextObjectiveStoreKey.class, |
| XConnectStoreKey.class |
| ); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| cfgService.removeListener(cfgListener); |
| cfgService.unregisterConfigFactory(deviceConfigFactory); |
| cfgService.unregisterConfigFactory(appConfigFactory); |
| cfgService.unregisterConfigFactory(xConnectConfigFactory); |
| cfgService.unregisterConfigFactory(mcastConfigFactory); |
| cfgService.unregisterConfigFactory(pwaasConfigFactory); |
| |
| hostService.removeListener(hostListener); |
| packetService.removeProcessor(processor); |
| linkService.removeListener(linkListener); |
| deviceService.removeListener(deviceListener); |
| multicastRouteService.removeListener(mcastListener); |
| routeService.removeListener(routeListener); |
| |
| neighbourResolutionService.unregisterNeighbourHandlers(appId); |
| |
| processor = null; |
| linkListener = null; |
| deviceListener = null; |
| groupHandlerMap.clear(); |
| |
| dsNextObjStore.destroy(); |
| vlanNextObjStore.destroy(); |
| portNextObjStore.destroy(); |
| tunnelStore.destroy(); |
| policyStore.destroy(); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public List<Tunnel> getTunnels() { |
| return tunnelHandler.getTunnels(); |
| } |
| |
| @Override |
| public TunnelHandler.Result createTunnel(Tunnel tunnel) { |
| return tunnelHandler.createTunnel(tunnel); |
| } |
| |
| @Override |
| public TunnelHandler.Result removeTunnel(Tunnel tunnel) { |
| for (Policy policy: policyHandler.getPolicies()) { |
| if (policy.type() == Policy.Type.TUNNEL_FLOW) { |
| TunnelPolicy tunnelPolicy = (TunnelPolicy) policy; |
| if (tunnelPolicy.tunnelId().equals(tunnel.id())) { |
| log.warn("Cannot remove the tunnel used by a policy"); |
| return TunnelHandler.Result.TUNNEL_IN_USE; |
| } |
| } |
| } |
| return tunnelHandler.removeTunnel(tunnel); |
| } |
| |
| @Override |
| public PolicyHandler.Result removePolicy(Policy policy) { |
| return policyHandler.removePolicy(policy); |
| } |
| |
| @Override |
| public PolicyHandler.Result createPolicy(Policy policy) { |
| return policyHandler.createPolicy(policy); |
| } |
| |
| @Override |
| public List<Policy> getPolicies() { |
| return policyHandler.getPolicies(); |
| } |
| |
| @Override |
| public void rerouteNetwork() { |
| cfgListener.configureNetwork(); |
| } |
| |
| @Override |
| public Map<DeviceId, Set<IpPrefix>> getDeviceSubnetMap() { |
| Map<DeviceId, Set<IpPrefix>> deviceSubnetMap = Maps.newHashMap(); |
| deviceService.getAvailableDevices().forEach(device -> { |
| deviceSubnetMap.put(device.id(), deviceConfiguration.getSubnets(device.id())); |
| }); |
| return deviceSubnetMap; |
| } |
| |
| |
| @Override |
| public ImmutableMap<DeviceId, EcmpShortestPathGraph> getCurrentEcmpSpg() { |
| if (defaultRoutingHandler != null) { |
| return defaultRoutingHandler.getCurrentEmcpSpgMap(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public ImmutableMap<DestinationSetNextObjectiveStoreKey, NextNeighbors> getDestinationSet() { |
| if (dsNextObjStore != null) { |
| return ImmutableMap.copyOf(dsNextObjStore.entrySet()); |
| } else { |
| return ImmutableMap.of(); |
| } |
| } |
| |
| /** |
| * Extracts the application ID from the manager. |
| * |
| * @return application ID |
| */ |
| public ApplicationId appId() { |
| return appId; |
| } |
| |
| /** |
| * Returns the device configuration. |
| * |
| * @return device configuration |
| */ |
| public DeviceConfiguration deviceConfiguration() { |
| return deviceConfiguration; |
| } |
| |
| /** |
| * Per device next objective ID store with (device id + destination set) as key. |
| * |
| * @return next objective ID store |
| */ |
| public EventuallyConsistentMap<DestinationSetNextObjectiveStoreKey, NextNeighbors> |
| dsNextObjStore() { |
| return dsNextObjStore; |
| } |
| |
| /** |
| * Per device next objective ID store with (device id + subnet) as key. |
| * |
| * @return vlan next object store |
| */ |
| public EventuallyConsistentMap<VlanNextObjectiveStoreKey, Integer> vlanNextObjStore() { |
| return vlanNextObjStore; |
| } |
| |
| /** |
| * Per device next objective ID store with (device id + port) as key. |
| * |
| * @return port next object store. |
| */ |
| public EventuallyConsistentMap<PortNextObjectiveStoreKey, Integer> portNextObjStore() { |
| return portNextObjStore; |
| } |
| |
| /** |
| * Returns the MPLS-ECMP configuration which indicates whether ECMP on |
| * labeled packets should be programmed or not. |
| * |
| * @return MPLS-ECMP value |
| */ |
| public boolean getMplsEcmp() { |
| SegmentRoutingAppConfig segmentRoutingAppConfig = cfgService |
| .getConfig(this.appId, SegmentRoutingAppConfig.class); |
| return segmentRoutingAppConfig != null && segmentRoutingAppConfig.mplsEcmp(); |
| } |
| |
| /** |
| * Returns the tunnel object with the tunnel ID. |
| * |
| * @param tunnelId Tunnel ID |
| * @return Tunnel reference |
| */ |
| public Tunnel getTunnel(String tunnelId) { |
| return tunnelHandler.getTunnel(tunnelId); |
| } |
| |
| // TODO Consider moving these to InterfaceService |
| /** |
| * Returns untagged VLAN configured on given connect point. |
| * <p> |
| * Only returns the first match if there are multiple untagged VLAN configured |
| * on the connect point. |
| * |
| * @param connectPoint connect point |
| * @return untagged VLAN or null if not configured |
| */ |
| VlanId getUntaggedVlanId(ConnectPoint connectPoint) { |
| return interfaceService.getInterfacesByPort(connectPoint).stream() |
| .filter(intf -> !intf.vlanUntagged().equals(VlanId.NONE)) |
| .map(Interface::vlanUntagged) |
| .findFirst().orElse(null); |
| } |
| |
| /** |
| * Returns tagged VLAN configured on given connect point. |
| * <p> |
| * Returns all matches if there are multiple tagged VLAN configured |
| * on the connect point. |
| * |
| * @param connectPoint connect point |
| * @return tagged VLAN or empty set if not configured |
| */ |
| Set<VlanId> getTaggedVlanId(ConnectPoint connectPoint) { |
| Set<Interface> interfaces = interfaceService.getInterfacesByPort(connectPoint); |
| return interfaces.stream() |
| .map(Interface::vlanTagged) |
| .flatMap(Set::stream) |
| .collect(Collectors.toSet()); |
| } |
| |
| /** |
| * Returns native VLAN configured on given connect point. |
| * <p> |
| * Only returns the first match if there are multiple native VLAN configured |
| * on the connect point. |
| * |
| * @param connectPoint connect point |
| * @return native VLAN or null if not configured |
| */ |
| VlanId getNativeVlanId(ConnectPoint connectPoint) { |
| Set<Interface> interfaces = interfaceService.getInterfacesByPort(connectPoint); |
| return interfaces.stream() |
| .filter(intf -> !intf.vlanNative().equals(VlanId.NONE)) |
| .map(Interface::vlanNative) |
| .findFirst() |
| .orElse(null); |
| } |
| |
| /** |
| * Returns internal VLAN for untagged hosts on given connect point. |
| * <p> |
| * The internal VLAN is either vlan-untagged for an access port, |
| * or vlan-native for a trunk port. |
| * |
| * @param connectPoint connect point |
| * @return internal VLAN or null if both vlan-untagged and vlan-native are undefined |
| */ |
| VlanId getInternalVlanId(ConnectPoint connectPoint) { |
| VlanId untaggedVlanId = getUntaggedVlanId(connectPoint); |
| VlanId nativeVlanId = getNativeVlanId(connectPoint); |
| return untaggedVlanId != null ? untaggedVlanId : nativeVlanId; |
| } |
| |
| /** |
| * Returns optional pair device ID of given device. |
| * |
| * @param deviceId device ID |
| * @return optional pair device ID. Might be empty if pair device is not configured |
| */ |
| Optional<DeviceId> getPairDeviceId(DeviceId deviceId) { |
| SegmentRoutingDeviceConfig deviceConfig = |
| cfgService.getConfig(deviceId, SegmentRoutingDeviceConfig.class); |
| return Optional.ofNullable(deviceConfig).map(SegmentRoutingDeviceConfig::pairDeviceId); |
| } |
| /** |
| * Returns optional pair device local port of given device. |
| * |
| * @param deviceId device ID |
| * @return optional pair device ID. Might be empty if pair device is not configured |
| */ |
| Optional<PortNumber> getPairLocalPorts(DeviceId deviceId) { |
| SegmentRoutingDeviceConfig deviceConfig = |
| cfgService.getConfig(deviceId, SegmentRoutingDeviceConfig.class); |
| return Optional.ofNullable(deviceConfig).map(SegmentRoutingDeviceConfig::pairLocalPort); |
| } |
| |
| /** |
| * Returns vlan port map of given device. |
| * |
| * @param deviceId device id |
| * @return vlan-port multimap |
| */ |
| public Multimap<VlanId, PortNumber> getVlanPortMap(DeviceId deviceId) { |
| HashMultimap<VlanId, PortNumber> vlanPortMap = HashMultimap.create(); |
| |
| interfaceService.getInterfaces().stream() |
| .filter(intf -> intf.connectPoint().deviceId().equals(deviceId)) |
| .forEach(intf -> { |
| vlanPortMap.put(intf.vlanUntagged(), intf.connectPoint().port()); |
| intf.vlanTagged().forEach(vlanTagged -> |
| vlanPortMap.put(vlanTagged, intf.connectPoint().port()) |
| ); |
| vlanPortMap.put(intf.vlanNative(), intf.connectPoint().port()); |
| }); |
| vlanPortMap.removeAll(VlanId.NONE); |
| |
| return vlanPortMap; |
| } |
| |
| /** |
| * Returns the next objective ID for the given subnet prefix. It is expected |
| * Returns the next objective ID for the given vlan id. It is expected |
| * that the next-objective has been pre-created from configuration. |
| * |
| * @param deviceId Device ID |
| * @param vlanId VLAN ID |
| * @return next objective ID or -1 if it was not found |
| */ |
| int getVlanNextObjectiveId(DeviceId deviceId, VlanId vlanId) { |
| if (groupHandlerMap.get(deviceId) != null) { |
| log.trace("getVlanNextObjectiveId query in device {}", deviceId); |
| return groupHandlerMap.get(deviceId).getVlanNextObjectiveId(vlanId); |
| } else { |
| log.warn("getVlanNextObjectiveId query - groupHandler for " |
| + "device {} not found", deviceId); |
| return -1; |
| } |
| } |
| |
| /** |
| * Returns the next objective ID for the given portNumber, given the treatment. |
| * There could be multiple different treatments to the same outport, which |
| * would result in different objectives. If the next object does not exist, |
| * and should be created, a new one is created and its id is returned. |
| * |
| * @param deviceId Device ID |
| * @param portNum port number on device for which NextObjective is queried |
| * @param treatment the actions to apply on the packets (should include outport) |
| * @param meta metadata passed into the creation of a Next Objective if necessary |
| * @param createIfMissing true if a next object should be created if not found |
| * @return next objective ID or -1 if an error occurred during retrieval or creation |
| */ |
| public int getPortNextObjectiveId(DeviceId deviceId, PortNumber portNum, |
| TrafficTreatment treatment, |
| TrafficSelector meta, |
| boolean createIfMissing) { |
| DefaultGroupHandler ghdlr = groupHandlerMap.get(deviceId); |
| if (ghdlr != null) { |
| return ghdlr.getPortNextObjectiveId(portNum, treatment, meta, createIfMissing); |
| } else { |
| log.warn("getPortNextObjectiveId query - groupHandler for device {}" |
| + " not found", deviceId); |
| return -1; |
| } |
| } |
| |
| /** |
| * Returns the group handler object for the specified device id. |
| * |
| * @param devId the device identifier |
| * @return the groupHandler object for the device id, or null if not found |
| */ |
| DefaultGroupHandler getGroupHandler(DeviceId devId) { |
| return groupHandlerMap.get(devId); |
| } |
| |
| /** |
| * Returns true if this controller instance has seen this link before. The |
| * link may not be currently up, but as long as the link had been seen before |
| * this method will return true. The one exception is when the link was |
| * indeed seen before, but this controller instance was forced to forget it |
| * by a call to purgeSeenLink method. |
| * |
| * @param link the infrastructure link being queried |
| * @return true if this controller instance has seen this link before |
| */ |
| boolean isSeenLink(Link link) { |
| return seenLinks.containsKey(link); |
| } |
| |
| /** |
| * Updates the seen link store. Updates can be for links that are currently |
| * available or not. |
| * |
| * @param link the link to update in the seen-link local store |
| * @param up the status of the link, true if up, false if down |
| */ |
| void updateSeenLink(Link link, boolean up) { |
| seenLinks.put(link, up); |
| } |
| |
| /** |
| * Returns the status of a seen-link (up or down). If the link has not |
| * been seen-before, a null object is returned. |
| * |
| * @param link the infrastructure link being queried |
| * @return null if the link was not seen-before; |
| * true if the seen-link is up; |
| * false if the seen-link is down |
| */ |
| Boolean isSeenLinkUp(Link link) { |
| return seenLinks.get(link); |
| } |
| |
| /** |
| * Makes this controller instance forget a previously seen before link. |
| * |
| * @param link the infrastructure link to purge |
| */ |
| private void purgeSeenLink(Link link) { |
| seenLinks.remove(link); |
| } |
| |
| /** |
| * Returns the status of a link as parallel link. A parallel link |
| * is defined as a link which has common src and dst switches as another |
| * seen-link that is currently enabled. It is not necessary for the link being |
| * queried to be a seen-link. |
| * |
| * @param link the infrastructure link being queried |
| * @return true if a seen-link exists that is up, and shares the |
| * same src and dst switches as the link being queried |
| */ |
| private boolean isParallelLink(Link link) { |
| for (Entry<Link, Boolean> seen : seenLinks.entrySet()) { |
| Link seenLink = seen.getKey(); |
| if (seenLink.equals(link)) { |
| continue; |
| } |
| if (seenLink.src().deviceId().equals(link.src().deviceId()) && |
| seenLink.dst().deviceId().equals(link.dst().deviceId()) && |
| seen.getValue()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns true if the link being queried is a bidirectional link. A bidi |
| * link is defined as a link, whose reverse link - ie. the link in the reverse |
| * direction - has been seen-before and is up. It is not necessary for the link |
| * being queried to be a seen-link. |
| * |
| * @param link the infrastructure link being queried |
| * @return true if another unidirectional link exists in the reverse direction, |
| * has been seen-before and is up |
| */ |
| public boolean isBidirectional(Link link) { |
| Link reverseLink = linkService.getLink(link.dst(), link.src()); |
| if (reverseLink == null) { |
| return false; |
| } |
| Boolean result = isSeenLinkUp(reverseLink); |
| if (result == null) { |
| return false; |
| } |
| return result.booleanValue(); |
| } |
| |
| /** |
| * Determines if the given link should be avoided in routing calculations |
| * by policy or design. |
| * |
| * @param link the infrastructure link being queried |
| * @return true if link should be avoided |
| */ |
| public boolean avoidLink(Link link) { |
| // XXX currently only avoids all pair-links. In the future can be |
| // extended to avoid any generic link |
| DeviceId src = link.src().deviceId(); |
| PortNumber srcPort = link.src().port(); |
| if (deviceConfiguration == null || !deviceConfiguration.isConfigured(src)) { |
| log.warn("Device {} not configured..cannot avoid link {}", src, link); |
| return false; |
| } |
| DeviceId pairDev; |
| PortNumber pairLocalPort, pairRemotePort = null; |
| try { |
| pairDev = deviceConfiguration.getPairDeviceId(src); |
| pairLocalPort = deviceConfiguration.getPairLocalPort(src); |
| if (pairDev != null) { |
| pairRemotePort = deviceConfiguration.getPairLocalPort(pairDev); |
| } |
| } catch (DeviceConfigNotFoundException e) { |
| log.warn("Pair dev for dev {} not configured..cannot avoid link {}", |
| src, link); |
| return false; |
| } |
| |
| if (srcPort.equals(pairLocalPort) && |
| link.dst().deviceId().equals(pairDev) && |
| link.dst().port().equals(pairRemotePort)) { |
| return true; |
| } |
| return false; |
| } |
| |
| private class InternalPacketProcessor implements PacketProcessor { |
| @Override |
| public void process(PacketContext context) { |
| |
| if (context.isHandled()) { |
| return; |
| } |
| |
| InboundPacket pkt = context.inPacket(); |
| Ethernet ethernet = pkt.parsed(); |
| |
| if (ethernet == null) { |
| return; |
| } |
| |
| log.trace("Rcvd pktin from {}: {}", context.inPacket().receivedFrom(), |
| ethernet); |
| if (ethernet.getEtherType() == TYPE_ARP) { |
| log.warn("Received unexpected ARP packet on {}", |
| context.inPacket().receivedFrom()); |
| log.trace("{}", ethernet); |
| return; |
| } else if (ethernet.getEtherType() == Ethernet.TYPE_IPV4) { |
| IPv4 ipv4Packet = (IPv4) ethernet.getPayload(); |
| //ipHandler.addToPacketBuffer(ipv4Packet); |
| if (ipv4Packet.getProtocol() == IPv4.PROTOCOL_ICMP) { |
| icmpHandler.processIcmp(ethernet, pkt.receivedFrom()); |
| } else { |
| // NOTE: We don't support IP learning at this moment so this |
| // is not necessary. Also it causes duplication of DHCP packets. |
| // ipHandler.processPacketIn(ipv4Packet, pkt.receivedFrom()); |
| } |
| } else if (ethernet.getEtherType() == Ethernet.TYPE_IPV6) { |
| IPv6 ipv6Packet = (IPv6) ethernet.getPayload(); |
| //ipHandler.addToPacketBuffer(ipv6Packet); |
| // We deal with the packet only if the packet is a ICMP6 ECHO/REPLY |
| if (ipv6Packet.getNextHeader() == IPv6.PROTOCOL_ICMP6) { |
| ICMP6 icmp6Packet = (ICMP6) ipv6Packet.getPayload(); |
| if (icmp6Packet.getIcmpType() == ICMP6.ECHO_REQUEST || |
| icmp6Packet.getIcmpType() == ICMP6.ECHO_REPLY) { |
| icmpHandler.processIcmpv6(ethernet, pkt.receivedFrom()); |
| } else { |
| log.trace("Received ICMPv6 0x{} - not handled", |
| Integer.toHexString(icmp6Packet.getIcmpType() & 0xff)); |
| } |
| } else { |
| // NOTE: We don't support IP learning at this moment so this |
| // is not necessary. Also it causes duplication of DHCPv6 packets. |
| // ipHandler.processPacketIn(ipv6Packet, pkt.receivedFrom()); |
| } |
| } |
| } |
| } |
| |
| private class InternalLinkListener implements LinkListener { |
| @Override |
| public void event(LinkEvent event) { |
| if (event.type() == LinkEvent.Type.LINK_ADDED || |
| event.type() == LinkEvent.Type.LINK_UPDATED || |
| event.type() == LinkEvent.Type.LINK_REMOVED) { |
| log.debug("Event {} received from Link Service", event.type()); |
| scheduleEventHandlerIfNotScheduled(event); |
| } |
| } |
| } |
| |
| private class InternalDeviceListener implements DeviceListener { |
| @Override |
| public void event(DeviceEvent event) { |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| case PORT_UPDATED: |
| case PORT_ADDED: |
| case DEVICE_UPDATED: |
| case DEVICE_AVAILABILITY_CHANGED: |
| log.trace("Event {} received from Device Service", event.type()); |
| scheduleEventHandlerIfNotScheduled(event); |
| break; |
| default: |
| } |
| } |
| } |
| |
| @SuppressWarnings("rawtypes") |
| private void scheduleEventHandlerIfNotScheduled(Event event) { |
| synchronized (THREAD_SCHED_LOCK) { |
| eventQueue.add(event); |
| numOfEventsQueued++; |
| |
| if ((numOfHandlerScheduled - numOfHandlerExecution) == 0) { |
| //No pending scheduled event handling threads. So start a new one. |
| eventHandlerFuture = executorService |
| .schedule(eventHandler, 100, TimeUnit.MILLISECONDS); |
| numOfHandlerScheduled++; |
| } |
| log.trace("numOfEventsQueued {}, numOfEventHandlerScheduled {}", |
| numOfEventsQueued, |
| numOfHandlerScheduled); |
| } |
| } |
| |
| private class InternalEventHandler implements Runnable { |
| @Override |
| public void run() { |
| try { |
| while (true) { |
| @SuppressWarnings("rawtypes") |
| Event event; |
| synchronized (THREAD_SCHED_LOCK) { |
| if (!eventQueue.isEmpty()) { |
| event = eventQueue.poll(); |
| numOfEventsExecuted++; |
| } else { |
| numOfHandlerExecution++; |
| log.debug("numOfHandlerExecution {} numOfEventsExecuted {}", |
| numOfHandlerExecution, numOfEventsExecuted); |
| break; |
| } |
| } |
| if (event.type() == LinkEvent.Type.LINK_ADDED || |
| event.type() == LinkEvent.Type.LINK_UPDATED) { |
| // Note: do not update seenLinks here, otherwise every |
| // link, even one seen for the first time, will be appear |
| // to be a previously seen link |
| processLinkAdded((Link) event.subject()); |
| } else if (event.type() == LinkEvent.Type.LINK_REMOVED) { |
| Link linkRemoved = (Link) event.subject(); |
| if (linkRemoved.type() == Link.Type.DIRECT) { |
| updateSeenLink(linkRemoved, false); |
| } |
| // device availability check helps to ensure that |
| // multiple link-removed events are actually treated as a |
| // single switch removed event. purgeSeenLink is necessary |
| // so we do rerouting (instead of rehashing) when switch |
| // comes back. |
| if (linkRemoved.src().elementId() instanceof DeviceId && |
| !deviceService.isAvailable(linkRemoved.src().deviceId())) { |
| purgeSeenLink(linkRemoved); |
| continue; |
| } |
| if (linkRemoved.dst().elementId() instanceof DeviceId && |
| !deviceService.isAvailable(linkRemoved.dst().deviceId())) { |
| purgeSeenLink(linkRemoved); |
| continue; |
| } |
| processLinkRemoved((Link) event.subject()); |
| } else if (event.type() == DeviceEvent.Type.DEVICE_ADDED || |
| event.type() == DeviceEvent.Type.DEVICE_AVAILABILITY_CHANGED || |
| event.type() == DeviceEvent.Type.DEVICE_UPDATED) { |
| DeviceId deviceId = ((Device) event.subject()).id(); |
| if (deviceService.isAvailable(deviceId)) { |
| log.info("Processing device event {} for available device {}", |
| event.type(), ((Device) event.subject()).id()); |
| processDeviceAdded((Device) event.subject()); |
| } else { |
| log.info("Processing device event {} for unavailable device {}", |
| event.type(), ((Device) event.subject()).id()); |
| processDeviceRemoved((Device) event.subject()); |
| } |
| } else if (event.type() == DeviceEvent.Type.PORT_ADDED) { |
| // typically these calls come when device is added first time |
| // so port filtering rules are handled at the device_added event. |
| // port added calls represent all ports on the device, |
| // enabled or not. |
| log.trace("** PORT ADDED {}/{} -> {}", |
| ((DeviceEvent) event).subject().id(), |
| ((DeviceEvent) event).port().number(), |
| event.type()); |
| } else if (event.type() == DeviceEvent.Type.PORT_UPDATED) { |
| // these calls happen for every subsequent event |
| // ports enabled, disabled, switch goes away, comes back |
| log.info("** PORT UPDATED {}/{} -> {}", |
| event.subject(), |
| ((DeviceEvent) event).port(), |
| event.type()); |
| processPortUpdated(((Device) event.subject()), |
| ((DeviceEvent) event).port()); |
| } else { |
| log.warn("Unhandled event type: {}", event.type()); |
| } |
| } |
| } catch (Exception e) { |
| log.error("SegmentRouting event handler " |
| + "thread thrown an exception: {}", e); |
| } |
| } |
| } |
| |
| private void processLinkAdded(Link link) { |
| log.info("** LINK ADDED {}", link.toString()); |
| if (!deviceConfiguration.isConfigured(link.src().deviceId())) { |
| log.warn("Source device of this link is not configured..not processing"); |
| return; |
| } |
| if (link.type() != Link.Type.DIRECT) { |
| // NOTE: A DIRECT link might be transiently marked as INDIRECT |
| // if BDDP is received before LLDP. We can safely ignore that |
| // until the LLDP is received and the link is marked as DIRECT. |
| log.info("Ignore link {}->{}. Link type is {} instead of DIRECT.", |
| link.src(), link.dst(), link.type()); |
| return; |
| } |
| |
| //Irrespective of whether the local is a MASTER or not for this device, |
| //create group handler instance and push default TTP flow rules if needed, |
| //as in a multi-instance setup, instances can initiate groups for any device. |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(link.src() |
| .deviceId()); |
| if (groupHandler != null) { |
| groupHandler.portUpForLink(link); |
| } else { |
| Device device = deviceService.getDevice(link.src().deviceId()); |
| if (device != null) { |
| log.warn("processLinkAdded: Link Added " |
| + "Notification without Device Added " |
| + "event, still handling it"); |
| processDeviceAdded(device); |
| groupHandler = groupHandlerMap.get(link.src() |
| .deviceId()); |
| groupHandler.portUpForLink(link); |
| } |
| } |
| |
| /*// process link only if it is bidirectional |
| if (!isBidirectional(link)) { |
| log.debug("Link not bidirectional.. waiting for other direction " |
| + "src {} --> dst {} ", link.dst(), link.src()); |
| // note that if we are not processing for routing, it should at least |
| // be considered a seen-link |
| updateSeenLink(link, true); |
| return; |
| } |
| TO DO this ensure that rehash is still done correctly even if link is |
| not processed for rerouting - perhaps rehash in both directions when |
| it ultimately becomes bidi? |
| */ |
| |
| log.debug("Starting optimized route population process for link " |
| + "{} --> {}", link.src(), link.dst()); |
| boolean seenBefore = isSeenLink(link); |
| defaultRoutingHandler.populateRoutingRulesForLinkStatusChange(null, link, null); |
| |
| // It's possible that linkUp causes no route-path change as ECMP graph does |
| // not change if the link is a parallel link (same src-dst as another link. |
| // However we still need to update ECMP hash groups to include new buckets |
| // for the link that has come up. |
| if (mastershipService.isLocalMaster(link.src().deviceId())) { |
| if (!seenBefore && isParallelLink(link)) { |
| // if link seen first time, we need to ensure hash-groups have all ports |
| log.debug("Attempting retryHash for paralled first-time link {}", link); |
| groupHandler.retryHash(link, false, true); |
| } else { |
| //seen before-link |
| if (isParallelLink(link)) { |
| log.debug("Attempting retryHash for paralled seen-before " |
| + "link {}", link); |
| groupHandler.retryHash(link, false, false); |
| } |
| } |
| } |
| |
| mcastHandler.init(); |
| } |
| |
| private void processLinkRemoved(Link link) { |
| log.info("** LINK REMOVED {}", link.toString()); |
| defaultRoutingHandler.populateRoutingRulesForLinkStatusChange(link, null, null); |
| |
| // update local groupHandler stores |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(link.src().deviceId()); |
| if (groupHandler != null) { |
| if (mastershipService.isLocalMaster(link.src().deviceId()) && |
| isParallelLink(link)) { |
| groupHandler.retryHash(link, true, false); |
| } |
| // ensure local stores are updated |
| groupHandler.portDown(link.src().port()); |
| } else { |
| log.warn("group handler not found for dev:{} when removing link: {}", |
| link.src().deviceId(), link); |
| } |
| |
| mcastHandler.processLinkDown(link); |
| } |
| |
| private void processDeviceAdded(Device device) { |
| log.info("** DEVICE ADDED with ID {}", device.id()); |
| |
| // NOTE: Punt ARP/NDP even when the device is not configured. |
| // Host learning without network config is required for CORD config generator. |
| routingRulePopulator.populateIpPunts(device.id()); |
| routingRulePopulator.populateArpNdpPunts(device.id()); |
| |
| if (deviceConfiguration == null || !deviceConfiguration.isConfigured(device.id())) { |
| log.warn("Device configuration unavailable. Device {} will be " |
| + "processed after configuration.", device.id()); |
| return; |
| } |
| processDeviceAddedInternal(device.id()); |
| } |
| |
| private void processDeviceAddedInternal(DeviceId deviceId) { |
| // Irrespective of whether the local is a MASTER or not for this device, |
| // we need to create a SR-group-handler instance. This is because in a |
| // multi-instance setup, any instance can initiate forwarding/next-objectives |
| // for any switch (even if this instance is a SLAVE or not even connected |
| // to the switch). To handle this, a default-group-handler instance is necessary |
| // per switch. |
| log.debug("Current groupHandlerMap devs: {}", groupHandlerMap.keySet()); |
| if (groupHandlerMap.get(deviceId) == null) { |
| DefaultGroupHandler groupHandler; |
| try { |
| groupHandler = DefaultGroupHandler. |
| createGroupHandler(deviceId, |
| appId, |
| deviceConfiguration, |
| linkService, |
| flowObjectiveService, |
| this); |
| } catch (DeviceConfigNotFoundException e) { |
| log.warn(e.getMessage() + " Aborting processDeviceAdded."); |
| return; |
| } |
| log.debug("updating groupHandlerMap with new config for device: {}", |
| deviceId); |
| groupHandlerMap.put(deviceId, groupHandler); |
| } |
| |
| if (mastershipService.isLocalMaster(deviceId)) { |
| defaultRoutingHandler.populatePortAddressingRules(deviceId); |
| hostHandler.init(deviceId); |
| xConnectHandler.init(deviceId); |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(deviceId); |
| groupHandler.createGroupsFromVlanConfig(); |
| routingRulePopulator.populateSubnetBroadcastRule(deviceId); |
| } |
| |
| appCfgHandler.init(deviceId); |
| routeHandler.init(deviceId); |
| } |
| |
| private void processDeviceRemoved(Device device) { |
| dsNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| dsNextObjStore.remove(entry.getKey()); |
| }); |
| vlanNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> vlanNextObjStore.remove(entry.getKey())); |
| portNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> portNextObjStore.remove(entry.getKey())); |
| |
| seenLinks.keySet().removeIf(key -> key.src().deviceId().equals(device.id()) || |
| key.dst().deviceId().equals(device.id())); |
| |
| groupHandlerMap.remove(device.id()); |
| defaultRoutingHandler.purgeEcmpGraph(device.id()); |
| // Note that a switch going down is associated with all of its links |
| // going down as well, but it is treated as a single switch down event |
| // while the link-downs are ignored. |
| defaultRoutingHandler |
| .populateRoutingRulesForLinkStatusChange(null, null, device.id()); |
| mcastHandler.removeDevice(device.id()); |
| xConnectHandler.removeDevice(device.id()); |
| } |
| |
| private void processPortUpdated(Device device, Port port) { |
| if (deviceConfiguration == null || !deviceConfiguration.isConfigured(device.id())) { |
| log.warn("Device configuration uploading. Not handling port event for" |
| + "dev: {} port: {}", device.id(), port.number()); |
| return; |
| } |
| |
| if (!mastershipService.isLocalMaster(device.id())) { |
| log.debug("Not master for dev:{} .. not handling port updated event" |
| + "for port {}", device.id(), port.number()); |
| return; |
| } |
| |
| // first we handle filtering rules associated with the port |
| if (port.isEnabled()) { |
| log.info("Switchport {}/{} enabled..programming filters", |
| device.id(), port.number()); |
| routingRulePopulator.processSinglePortFilters(device.id(), port.number(), true); |
| } else { |
| log.info("Switchport {}/{} disabled..removing filters", |
| device.id(), port.number()); |
| routingRulePopulator.processSinglePortFilters(device.id(), port.number(), false); |
| } |
| |
| // portUpdated calls are for ports that have gone down or up. For switch |
| // to switch ports, link-events should take care of any re-routing or |
| // group editing necessary for port up/down. Here we only process edge ports |
| // that are already configured. |
| ConnectPoint cp = new ConnectPoint(device.id(), port.number()); |
| VlanId untaggedVlan = getUntaggedVlanId(cp); |
| VlanId nativeVlan = getNativeVlanId(cp); |
| Set<VlanId> taggedVlans = getTaggedVlanId(cp); |
| |
| if (untaggedVlan == null && nativeVlan == null && taggedVlans.isEmpty()) { |
| log.debug("Not handling port updated event for non-edge port (unconfigured) " |
| + "dev/port: {}/{}", device.id(), port.number()); |
| return; |
| } |
| if (untaggedVlan != null) { |
| processEdgePort(device, port, untaggedVlan, true); |
| } |
| if (nativeVlan != null) { |
| processEdgePort(device, port, nativeVlan, true); |
| } |
| if (!taggedVlans.isEmpty()) { |
| taggedVlans.forEach(tag -> processEdgePort(device, port, tag, false)); |
| } |
| } |
| |
| private void processEdgePort(Device device, Port port, VlanId vlanId, |
| boolean popVlan) { |
| boolean portUp = port.isEnabled(); |
| if (portUp) { |
| log.info("Device:EdgePort {}:{} is enabled in vlan: {}", device.id(), |
| port.number(), vlanId); |
| } else { |
| log.info("Device:EdgePort {}:{} is disabled in vlan: {}", device.id(), |
| port.number(), vlanId); |
| } |
| |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(device.id()); |
| if (groupHandler != null) { |
| groupHandler.processEdgePort(port.number(), vlanId, popVlan, portUp); |
| } else { |
| log.warn("Group handler not found for dev:{}. Not handling edge port" |
| + " {} event for port:{}", device.id(), |
| (portUp) ? "UP" : "DOWN", port.number()); |
| } |
| } |
| |
| /** |
| * Registers the given connect point with the NRS, this is necessary |
| * to receive the NDP and ARP packets from the NRS. |
| * |
| * @param portToRegister connect point to register |
| */ |
| public void registerConnectPoint(ConnectPoint portToRegister) { |
| neighbourResolutionService.registerNeighbourHandler( |
| portToRegister, |
| neighbourHandler, |
| appId |
| ); |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| private static final long PROGRAM_DELAY = 2; |
| SegmentRoutingManager srManager; |
| |
| /** |
| * Constructs the internal network config listener. |
| * |
| * @param srManager segment routing manager |
| */ |
| InternalConfigListener(SegmentRoutingManager srManager) { |
| this.srManager = srManager; |
| } |
| |
| /** |
| * Reads network config and initializes related data structure accordingly. |
| */ |
| public void configureNetwork() { |
| if (deviceConfiguration == null) { |
| deviceConfiguration = new DeviceConfiguration(srManager); |
| } else { |
| deviceConfiguration.updateConfig(); |
| } |
| |
| arpHandler = new ArpHandler(srManager); |
| icmpHandler = new IcmpHandler(srManager); |
| ipHandler = new IpHandler(srManager); |
| routingRulePopulator = new RoutingRulePopulator(srManager); |
| defaultRoutingHandler = new DefaultRoutingHandler(srManager); |
| |
| tunnelHandler = new TunnelHandler(linkService, deviceConfiguration, |
| groupHandlerMap, tunnelStore); |
| policyHandler = new PolicyHandler(appId, deviceConfiguration, |
| flowObjectiveService, |
| tunnelHandler, policyStore); |
| // add a small delay to absorb multiple network config added notifications |
| if (!programmingScheduled.get()) { |
| programmingScheduled.set(true); |
| executorService.schedule(new ConfigChange(), PROGRAM_DELAY, |
| TimeUnit.SECONDS); |
| } |
| mcastHandler.init(); |
| } |
| |
| @Override |
| public void event(NetworkConfigEvent event) { |
| // TODO move this part to NetworkConfigEventHandler |
| if (event.configClass().equals(SegmentRoutingDeviceConfig.class)) { |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| log.info("Segment Routing Device Config added for {}", event.subject()); |
| configureNetwork(); |
| break; |
| case CONFIG_UPDATED: |
| log.info("Segment Routing Config updated for {}", event.subject()); |
| // TODO support dynamic configuration |
| break; |
| default: |
| break; |
| } |
| } else if (event.configClass().equals(InterfaceConfig.class)) { |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| log.info("Interface Config added for {}", event.subject()); |
| configureNetwork(); |
| break; |
| case CONFIG_UPDATED: |
| log.info("Interface Config updated for {}", event.subject()); |
| // TODO support dynamic configuration |
| break; |
| default: |
| break; |
| } |
| } else if (event.configClass().equals(SegmentRoutingAppConfig.class)) { |
| checkState(appCfgHandler != null, "NetworkConfigEventHandler is not initialized"); |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| appCfgHandler.processAppConfigAdded(event); |
| break; |
| case CONFIG_UPDATED: |
| appCfgHandler.processAppConfigUpdated(event); |
| break; |
| case CONFIG_REMOVED: |
| appCfgHandler.processAppConfigRemoved(event); |
| break; |
| default: |
| break; |
| } |
| configureNetwork(); |
| } else if (event.configClass().equals(XConnectConfig.class)) { |
| checkState(xConnectHandler != null, "XConnectHandler is not initialized"); |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| xConnectHandler.processXConnectConfigAdded(event); |
| break; |
| case CONFIG_UPDATED: |
| xConnectHandler.processXConnectConfigUpdated(event); |
| break; |
| case CONFIG_REMOVED: |
| xConnectHandler.processXConnectConfigRemoved(event); |
| break; |
| default: |
| break; |
| } |
| } else if (event.configClass().equals(PwaasConfig.class)) { |
| checkState(l2TunnelHandler != null, "L2TunnelHandler is not initialized"); |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| l2TunnelHandler.processPwaasConfigAdded(event); |
| break; |
| case CONFIG_UPDATED: |
| l2TunnelHandler.processPwaasConfigUpdated(event); |
| break; |
| case CONFIG_REMOVED: |
| l2TunnelHandler.processPwaasConfigRemoved(event); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private final class ConfigChange implements Runnable { |
| @Override |
| public void run() { |
| programmingScheduled.set(false); |
| for (Device device : deviceService.getDevices()) { |
| processDeviceAdded(device); |
| } |
| defaultRoutingHandler.startPopulationProcess(); |
| } |
| } |
| } |
| |
| private class InternalHostListener implements HostListener { |
| @Override |
| public void event(HostEvent event) { |
| // Do not proceed without mastership |
| DeviceId deviceId = event.subject().location().deviceId(); |
| if (!mastershipService.isLocalMaster(deviceId)) { |
| return; |
| } |
| |
| switch (event.type()) { |
| case HOST_ADDED: |
| hostHandler.processHostAddedEvent(event); |
| break; |
| case HOST_MOVED: |
| hostHandler.processHostMovedEvent(event); |
| break; |
| case HOST_REMOVED: |
| hostHandler.processHostRemovedEvent(event); |
| break; |
| case HOST_UPDATED: |
| hostHandler.processHostUpdatedEvent(event); |
| break; |
| default: |
| log.warn("Unsupported host event type: {}", event.type()); |
| break; |
| } |
| } |
| } |
| |
| private class InternalMcastListener implements McastListener { |
| @Override |
| public void event(McastEvent event) { |
| switch (event.type()) { |
| case SOURCE_ADDED: |
| mcastHandler.processSourceAdded(event); |
| break; |
| case SINK_ADDED: |
| mcastHandler.processSinkAdded(event); |
| break; |
| case SINK_REMOVED: |
| mcastHandler.processSinkRemoved(event); |
| break; |
| case ROUTE_ADDED: |
| case ROUTE_REMOVED: |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class InternalRouteEventListener implements RouteListener { |
| @Override |
| public void event(RouteEvent event) { |
| switch (event.type()) { |
| case ROUTE_ADDED: |
| routeHandler.processRouteAdded(event); |
| break; |
| case ROUTE_UPDATED: |
| routeHandler.processRouteUpdated(event); |
| break; |
| case ROUTE_REMOVED: |
| routeHandler.processRouteRemoved(event); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| } |