| /* |
| * Copyright 2015-present Open Networking Laboratory |
| * |
| * 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 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.Ip4Prefix; |
| 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.McastConfig; |
| import org.onosproject.mastership.MastershipService; |
| 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.DefaultTrafficSelector; |
| 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.mcast.McastEvent; |
| import org.onosproject.net.mcast.McastListener; |
| import org.onosproject.net.mcast.MulticastRouteService; |
| import org.onosproject.net.packet.PacketPriority; |
| import org.onosproject.net.topology.TopologyService; |
| import org.onosproject.segmentrouting.config.DeviceConfigNotFoundException; |
| import org.onosproject.segmentrouting.config.DeviceConfiguration; |
| import org.onosproject.segmentrouting.config.SegmentRoutingDeviceConfig; |
| import org.onosproject.segmentrouting.config.SegmentRoutingAppConfig; |
| import org.onosproject.segmentrouting.grouphandler.DefaultGroupHandler; |
| import org.onosproject.segmentrouting.grouphandler.NeighborSet; |
| import org.onosproject.segmentrouting.storekey.NeighborSetNextObjectiveStoreKey; |
| import org.onosproject.segmentrouting.storekey.PortNextObjectiveStoreKey; |
| 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.packet.InboundPacket; |
| import org.onosproject.net.packet.PacketContext; |
| import org.onosproject.net.packet.PacketProcessor; |
| import org.onosproject.net.packet.PacketService; |
| import org.onosproject.segmentrouting.storekey.SubnetAssignedVidStoreKey; |
| import org.onosproject.segmentrouting.storekey.SubnetNextObjectiveStoreKey; |
| import org.onosproject.segmentrouting.storekey.XConnectNextObjectiveStoreKey; |
| 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.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| 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 static com.google.common.base.Preconditions.checkState; |
| |
| |
| /** |
| * 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) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected PacketService packetService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowObjectiveService flowObjectiveService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LinkService linkService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected MastershipService mastershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry cfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ComponentConfigService compCfgService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected MulticastRouteService multicastRouteService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected TopologyService topologyService; |
| |
| protected ArpHandler arpHandler = null; |
| protected IcmpHandler icmpHandler = null; |
| protected IpHandler ipHandler = null; |
| protected RoutingRulePopulator routingRulePopulator = null; |
| protected ApplicationId appId; |
| protected DeviceConfiguration deviceConfiguration = null; |
| |
| private DefaultRoutingHandler defaultRoutingHandler = null; |
| private TunnelHandler tunnelHandler = null; |
| private PolicyHandler policyHandler = null; |
| private InternalPacketProcessor processor = null; |
| private InternalLinkListener linkListener = null; |
| private InternalDeviceListener deviceListener = null; |
| private NetworkConfigEventHandler netcfgHandler = null; |
| private McastHandler mcastHandler = null; |
| private HostHandler hostHandler = 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 ScheduledExecutorService executorService = Executors |
| .newScheduledThreadPool(1); |
| |
| @SuppressWarnings("unused") |
| private static ScheduledFuture<?> eventHandlerFuture = null; |
| @SuppressWarnings("rawtypes") |
| private ConcurrentLinkedQueue<Event> eventQueue = new ConcurrentLinkedQueue<Event>(); |
| private Map<DeviceId, DefaultGroupHandler> groupHandlerMap = |
| new ConcurrentHashMap<>(); |
| /** |
| * Per device next objective ID store with (device id + neighbor set) as key. |
| */ |
| public EventuallyConsistentMap<NeighborSetNextObjectiveStoreKey, Integer> |
| nsNextObjStore = null; |
| /** |
| * Per device next objective ID store with (device id + subnet) as key. |
| */ |
| public EventuallyConsistentMap<SubnetNextObjectiveStoreKey, Integer> |
| subnetNextObjStore = null; |
| /** |
| * Per device next objective ID store with (device id + port) as key. |
| */ |
| public EventuallyConsistentMap<PortNextObjectiveStoreKey, Integer> |
| portNextObjStore = null; |
| /** |
| * Per cross-connect objective ID store with VLAN ID as key. |
| */ |
| public EventuallyConsistentMap<XConnectNextObjectiveStoreKey, Integer> |
| xConnectNextObjStore = null; |
| // Per device, per-subnet assigned-vlans store, with (device id + subnet |
| // IPv4 prefix) as key |
| private EventuallyConsistentMap<SubnetAssignedVidStoreKey, VlanId> |
| subnetVidStore = null; |
| private EventuallyConsistentMap<String, Tunnel> tunnelStore = null; |
| private EventuallyConsistentMap<String, Policy> policyStore = null; |
| |
| 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 ConfigFactory<ApplicationId, McastConfig> mcastConfigFactory = |
| new ConfigFactory<ApplicationId, McastConfig>(SubjectFactories.APP_SUBJECT_FACTORY, |
| McastConfig.class, "multicast") { |
| @Override |
| public McastConfig createConfig() { |
| return new McastConfig(); |
| } |
| }; |
| |
| private Object threadSchedulerLock = 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 SR_APP_ID = "org.onosproject.segmentrouting"; |
| /** |
| * The starting value of per-subnet VLAN ID assignment. |
| */ |
| private static final short ASSIGNED_VLAN_START = 4093; |
| /** |
| * The default VLAN ID assigned to the interfaces without subnet config. |
| */ |
| public static final short ASSIGNED_VLAN_NO_SUBNET = 4094; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication(SR_APP_ID); |
| |
| log.debug("Creating EC map nsnextobjectivestore"); |
| EventuallyConsistentMapBuilder<NeighborSetNextObjectiveStoreKey, Integer> |
| nsNextObjMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| nsNextObjStore = nsNextObjMapBuilder |
| .withName("nsnextobjectivestore") |
| .withSerializer(createSerializer()) |
| .withTimestampProvider((k, v) -> new WallClockTimestamp()) |
| .build(); |
| log.trace("Current size {}", nsNextObjStore.size()); |
| |
| log.debug("Creating EC map subnetnextobjectivestore"); |
| EventuallyConsistentMapBuilder<SubnetNextObjectiveStoreKey, Integer> |
| subnetNextObjMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| subnetNextObjStore = subnetNextObjMapBuilder |
| .withName("subnetnextobjectivestore") |
| .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(); |
| |
| log.debug("Creating EC map xconnectnextobjectivestore"); |
| EventuallyConsistentMapBuilder<XConnectNextObjectiveStoreKey, Integer> |
| xConnectNextObjStoreBuilder = storageService.eventuallyConsistentMapBuilder(); |
| xConnectNextObjStore = xConnectNextObjStoreBuilder |
| .withName("xconnectnextobjectivestore") |
| .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(); |
| |
| EventuallyConsistentMapBuilder<SubnetAssignedVidStoreKey, VlanId> |
| subnetVidStoreMapBuilder = storageService.eventuallyConsistentMapBuilder(); |
| subnetVidStore = subnetVidStoreMapBuilder |
| .withName("subnetvidstore") |
| .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"); |
| |
| processor = new InternalPacketProcessor(); |
| linkListener = new InternalLinkListener(); |
| deviceListener = new InternalDeviceListener(); |
| netcfgHandler = new NetworkConfigEventHandler(this); |
| mcastHandler = new McastHandler(this); |
| hostHandler = new HostHandler(this); |
| |
| cfgService.addListener(cfgListener); |
| cfgService.registerConfigFactory(deviceConfigFactory); |
| cfgService.registerConfigFactory(appConfigFactory); |
| cfgService.registerConfigFactory(mcastConfigFactory); |
| hostService.addListener(hostListener); |
| packetService.addProcessor(processor, PacketProcessor.director(2)); |
| linkService.addListener(linkListener); |
| deviceService.addListener(deviceListener); |
| multicastRouteService.addListener(mcastListener); |
| |
| // Request ARP packet-in |
| TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| selector.matchEthType(Ethernet.TYPE_ARP); |
| packetService.requestPackets(selector.build(), PacketPriority.CONTROL, appId, Optional.empty()); |
| |
| cfgListener.configureNetwork(); |
| |
| log.info("Started"); |
| } |
| |
| private KryoNamespace.Builder createSerializer() { |
| return new KryoNamespace.Builder() |
| .register(KryoNamespaces.API) |
| .register(NeighborSetNextObjectiveStoreKey.class, |
| SubnetNextObjectiveStoreKey.class, |
| SubnetAssignedVidStoreKey.class, |
| NeighborSet.class, |
| Tunnel.class, |
| DefaultTunnel.class, |
| Policy.class, |
| TunnelPolicy.class, |
| Policy.Type.class, |
| PortNextObjectiveStoreKey.class, |
| XConnectNextObjectiveStoreKey.class |
| ); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| cfgService.removeListener(cfgListener); |
| cfgService.unregisterConfigFactory(deviceConfigFactory); |
| cfgService.unregisterConfigFactory(appConfigFactory); |
| cfgService.unregisterConfigFactory(mcastConfigFactory); |
| |
| // Withdraw ARP packet-in |
| TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| selector.matchEthType(Ethernet.TYPE_ARP); |
| packetService.cancelPackets(selector.build(), PacketPriority.CONTROL, appId, Optional.empty()); |
| |
| packetService.removeProcessor(processor); |
| linkService.removeListener(linkListener); |
| deviceService.removeListener(deviceListener); |
| multicastRouteService.removeListener(mcastListener); |
| |
| processor = null; |
| linkListener = null; |
| deviceListener = null; |
| groupHandlerMap.clear(); |
| |
| nsNextObjStore.destroy(); |
| subnetNextObjStore.destroy(); |
| portNextObjStore.destroy(); |
| xConnectNextObjStore.destroy(); |
| tunnelStore.destroy(); |
| policyStore.destroy(); |
| subnetVidStore.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(); |
| } |
| |
| /** |
| * Returns the tunnel object with the tunnel ID. |
| * |
| * @param tunnelId Tunnel ID |
| * @return Tunnel reference |
| */ |
| public Tunnel getTunnel(String tunnelId) { |
| return tunnelHandler.getTunnel(tunnelId); |
| } |
| |
| /** |
| * Returns the vlan-id assigned to the subnet configured for a device. |
| * If no vlan-id has been assigned, a new one is assigned out of a pool of ids, |
| * if and only if this controller instance is the master for the device. |
| * <p> |
| * USAGE: The assigned vlans are meant to be applied to untagged packets on those |
| * switches/pipelines that need this functionality. These vids are meant |
| * to be used internally within a switch, and thus need to be unique only |
| * on a switch level. Note that packets never go out on the wire with these |
| * vlans. Currently, vlan ids are assigned from value 4093 down. |
| * Vlan id 4094 expected to be used for all ports that are not assigned subnets. |
| * Vlan id 4095 is reserved and unused. Only a single vlan id is assigned |
| * per subnet. |
| * |
| * @param deviceId switch dpid |
| * @param subnet IPv4 prefix for which assigned vlan is desired |
| * @return VlanId assigned for the subnet on the device, or |
| * null if no vlan assignment was found and this instance is not |
| * the master for the device. |
| */ |
| // TODO: We should avoid assigning VLAN IDs that are used by VLAN cross-connection. |
| public VlanId getSubnetAssignedVlanId(DeviceId deviceId, Ip4Prefix subnet) { |
| VlanId assignedVid = subnetVidStore.get(new SubnetAssignedVidStoreKey( |
| deviceId, subnet)); |
| if (assignedVid != null) { |
| log.debug("Query for subnet:{} on device:{} returned assigned-vlan " |
| + "{}", subnet, deviceId, assignedVid); |
| return assignedVid; |
| } |
| //check mastership for the right to assign a vlan |
| if (!mastershipService.isLocalMaster(deviceId)) { |
| log.warn("This controller instance is not the master for device {}. " |
| + "Cannot assign vlan-id for subnet {}", deviceId, subnet); |
| return null; |
| } |
| // vlan assignment is expensive but done only once |
| Set<Ip4Prefix> configuredSubnets = deviceConfiguration.getSubnets(deviceId); |
| Set<Short> assignedVlans = new HashSet<>(); |
| Set<Ip4Prefix> unassignedSubnets = new HashSet<>(); |
| for (Ip4Prefix sub : configuredSubnets) { |
| VlanId v = subnetVidStore.get(new SubnetAssignedVidStoreKey(deviceId, |
| sub)); |
| if (v != null) { |
| assignedVlans.add(v.toShort()); |
| } else { |
| unassignedSubnets.add(sub); |
| } |
| } |
| short nextAssignedVlan = ASSIGNED_VLAN_START; |
| if (!assignedVlans.isEmpty()) { |
| nextAssignedVlan = (short) (Collections.min(assignedVlans) - 1); |
| } |
| for (Ip4Prefix unsub : unassignedSubnets) { |
| // Special case for default route. Assign default VLAN ID to /32 and /0 subnets |
| if (unsub.prefixLength() == IpPrefix.MAX_INET_MASK_LENGTH || |
| unsub.prefixLength() == 0) { |
| subnetVidStore.put(new SubnetAssignedVidStoreKey(deviceId, unsub), |
| VlanId.vlanId(ASSIGNED_VLAN_NO_SUBNET)); |
| } else { |
| subnetVidStore.put(new SubnetAssignedVidStoreKey(deviceId, unsub), |
| VlanId.vlanId(nextAssignedVlan--)); |
| log.info("Assigned vlan: {} to subnet: {} on device: {}", |
| nextAssignedVlan + 1, unsub, deviceId); |
| } |
| } |
| |
| return subnetVidStore.get(new SubnetAssignedVidStoreKey(deviceId, subnet)); |
| } |
| |
| /** |
| * Returns the next objective ID for the given NeighborSet. |
| * If the nextObjective does not exist, a new one is created and |
| * its id is returned. |
| * |
| * @param deviceId Device ID |
| * @param ns NegighborSet |
| * @param meta metadata passed into the creation of a Next Objective |
| * @return next objective ID or -1 if an error was encountered during the |
| * creation of the nextObjective |
| */ |
| public int getNextObjectiveId(DeviceId deviceId, NeighborSet ns, |
| TrafficSelector meta) { |
| if (groupHandlerMap.get(deviceId) != null) { |
| log.trace("getNextObjectiveId query in device {}", deviceId); |
| return groupHandlerMap |
| .get(deviceId).getNextObjectiveId(ns, meta); |
| } else { |
| log.warn("getNextObjectiveId query - groupHandler for device {} " |
| + "not found", deviceId); |
| return -1; |
| } |
| } |
| |
| /** |
| * Returns the next objective ID for the given subnet prefix. It is expected |
| * that the next-objective has been pre-created from configuration. |
| * |
| * @param deviceId Device ID |
| * @param prefix Subnet |
| * @return next objective ID or -1 if it was not found |
| */ |
| public int getSubnetNextObjectiveId(DeviceId deviceId, IpPrefix prefix) { |
| if (groupHandlerMap.get(deviceId) != null) { |
| log.trace("getSubnetNextObjectiveId query in device {}", deviceId); |
| return groupHandlerMap |
| .get(deviceId).getSubnetNextObjectiveId(prefix); |
| } else { |
| log.warn("getSubnetNextObjectiveId 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, 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 |
| * @return next objective ID or -1 if it was not found |
| */ |
| public int getPortNextObjectiveId(DeviceId deviceId, PortNumber portNum, |
| TrafficTreatment treatment, |
| TrafficSelector meta) { |
| DefaultGroupHandler ghdlr = groupHandlerMap.get(deviceId); |
| if (ghdlr != null) { |
| return ghdlr.getPortNextObjectiveId(portNum, treatment, meta); |
| } else { |
| log.warn("getPortNextObjectiveId query - groupHandler for device {}" |
| + " not found", deviceId); |
| return -1; |
| } |
| } |
| |
| /** |
| * Returns the next objective ID of type broadcast associated with the VLAN |
| * cross-connection. |
| * |
| * @param deviceId Device ID for the cross-connection |
| * @param vlanId VLAN ID for the cross-connection |
| * @return next objective ID or -1 if it was not found |
| */ |
| public int getXConnectNextObjectiveId(DeviceId deviceId, VlanId vlanId) { |
| DefaultGroupHandler ghdlr = groupHandlerMap.get(deviceId); |
| if (ghdlr != null) { |
| return ghdlr.getXConnectNextObjectiveId(vlanId); |
| } else { |
| log.warn("getPortNextObjectiveId query - groupHandler for device {}" |
| + " not found", deviceId); |
| return -1; |
| } |
| } |
| |
| private class InternalPacketProcessor implements PacketProcessor { |
| @Override |
| public void process(PacketContext context) { |
| |
| if (context.isHandled()) { |
| return; |
| } |
| |
| InboundPacket pkt = context.inPacket(); |
| Ethernet ethernet = pkt.parsed(); |
| log.trace("Rcvd pktin: {}", ethernet); |
| if (ethernet.getEtherType() == Ethernet.TYPE_ARP) { |
| arpHandler.processPacketIn(pkt); |
| } else if (ethernet.getEtherType() == Ethernet.TYPE_IPV4) { |
| IPv4 ipPacket = (IPv4) ethernet.getPayload(); |
| ipHandler.addToPacketBuffer(ipPacket); |
| if (ipPacket.getProtocol() == IPv4.PROTOCOL_ICMP) { |
| icmpHandler.processPacketIn(pkt); |
| } else { |
| ipHandler.processPacketIn(pkt); |
| } |
| } |
| } |
| } |
| |
| private class InternalLinkListener implements LinkListener { |
| @Override |
| public void event(LinkEvent event) { |
| if (event.type() == LinkEvent.Type.LINK_ADDED |
| || 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_REMOVED: |
| case DEVICE_UPDATED: |
| case DEVICE_AVAILABILITY_CHANGED: |
| log.debug("Event {} received from Device Service", event.type()); |
| scheduleEventHandlerIfNotScheduled(event); |
| break; |
| default: |
| } |
| } |
| } |
| |
| @SuppressWarnings("rawtypes") |
| private void scheduleEventHandlerIfNotScheduled(Event event) { |
| synchronized (threadSchedulerLock) { |
| 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 = null; |
| synchronized (threadSchedulerLock) { |
| if (!eventQueue.isEmpty()) { |
| event = eventQueue.poll(); |
| numOfEventsExecuted++; |
| } else { |
| numOfHandlerExecution++; |
| log.debug("numOfHandlerExecution {} numOfEventsExecuted {}", |
| numOfHandlerExecution, numOfEventsExecuted); |
| break; |
| } |
| } |
| if (event.type() == LinkEvent.Type.LINK_ADDED) { |
| processLinkAdded((Link) event.subject()); |
| } else if (event.type() == LinkEvent.Type.LINK_REMOVED) { |
| 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_REMOVED) { |
| processPortRemoved((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.debug("A new link {} was added", link.toString()); |
| if (!deviceConfiguration.isConfigured(link.src().deviceId())) { |
| log.warn("Source device of this link is not configured."); |
| return; |
| } |
| //Irrespective whether the local is a MASTER or not for this device, |
| //create group handler instance and push default TTP flow rules. |
| //Because in a multi-instance setup, instances can initiate |
| //groups for any devices. Also the default TTP rules are needed |
| //to be pushed before inserting any IP table entries for any device |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(link.src() |
| .deviceId()); |
| if (groupHandler != null) { |
| groupHandler.linkUp(link, mastershipService.isLocalMaster( |
| link.src().deviceId())); |
| } 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.linkUp(link, mastershipService.isLocalMaster(device.id())); |
| } |
| } |
| |
| log.trace("Starting optimized route population process"); |
| defaultRoutingHandler.populateRoutingRulesForLinkStatusChange(null); |
| //log.trace("processLinkAdded: re-starting route population process"); |
| //defaultRoutingHandler.startPopulationProcess(); |
| } |
| |
| private void processLinkRemoved(Link link) { |
| log.debug("A link {} was removed", link.toString()); |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(link.src().deviceId()); |
| if (groupHandler != null) { |
| groupHandler.portDown(link.src().port(), |
| mastershipService.isLocalMaster(link.src().deviceId())); |
| } |
| log.trace("Starting optimized route population process"); |
| defaultRoutingHandler.populateRoutingRulesForLinkStatusChange(link); |
| //log.trace("processLinkRemoved: re-starting route population process"); |
| //defaultRoutingHandler.startPopulationProcess(); |
| } |
| |
| private void processDeviceAdded(Device device) { |
| log.debug("A new device with ID {} was added", device.id()); |
| if (deviceConfiguration == null || !deviceConfiguration.isConfigured(device.id())) { |
| log.warn("Device configuration uploading. Device {} will be " |
| + "processed after config completes.", device.id()); |
| return; |
| } |
| // 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. |
| if (groupHandlerMap.get(device.id()) == null) { |
| DefaultGroupHandler groupHandler; |
| try { |
| groupHandler = DefaultGroupHandler. |
| createGroupHandler(device.id(), |
| appId, |
| deviceConfiguration, |
| linkService, |
| flowObjectiveService, |
| this); |
| } catch (DeviceConfigNotFoundException e) { |
| log.warn(e.getMessage() + " Aborting processDeviceAdded."); |
| return; |
| } |
| groupHandlerMap.put(device.id(), groupHandler); |
| // Also, in some cases, drivers may need extra |
| // information to process rules (eg. Router IP/MAC); and so, we send |
| // port addressing rules to the driver as well irrespective of whether |
| // this instance is the master or not. |
| defaultRoutingHandler.populatePortAddressingRules(device.id()); |
| hostHandler.readInitialHosts(); |
| } |
| if (mastershipService.isLocalMaster(device.id())) { |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(device.id()); |
| groupHandler.createGroupsFromSubnetConfig(); |
| routingRulePopulator.populateSubnetBroadcastRule(device.id()); |
| groupHandler.createGroupsForXConnect(device.id()); |
| routingRulePopulator.populateXConnectBroadcastRule(device.id()); |
| } |
| |
| netcfgHandler.initVRouters(device.id()); |
| } |
| |
| private void processDeviceRemoved(Device device) { |
| nsNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| nsNextObjStore.remove(entry.getKey()); |
| }); |
| |
| subnetNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| subnetNextObjStore.remove(entry.getKey()); |
| }); |
| |
| portNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| portNextObjStore.remove(entry.getKey()); |
| }); |
| |
| xConnectNextObjStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| xConnectNextObjStore.remove(entry.getKey()); |
| }); |
| |
| subnetVidStore.entrySet().stream() |
| .filter(entry -> entry.getKey().deviceId().equals(device.id())) |
| .forEach(entry -> { |
| subnetVidStore.remove(entry.getKey()); |
| }); |
| |
| groupHandlerMap.remove(device.id()); |
| |
| defaultRoutingHandler.purgeEcmpGraph(device.id()); |
| } |
| |
| private void processPortRemoved(Device device, Port port) { |
| log.debug("Port {} was removed", port.toString()); |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(device.id()); |
| if (groupHandler != null) { |
| groupHandler.portDown(port.number(), |
| mastershipService.isLocalMaster(device.id())); |
| } |
| } |
| |
| private class InternalConfigListener implements NetworkConfigListener { |
| SegmentRoutingManager segmentRoutingManager; |
| |
| /** |
| * Constructs the internal network config listener. |
| * |
| * @param srMgr segment routing manager |
| */ |
| public InternalConfigListener(SegmentRoutingManager srMgr) { |
| this.segmentRoutingManager = srMgr; |
| } |
| |
| /** |
| * Reads network config and initializes related data structure accordingly. |
| */ |
| public void configureNetwork() { |
| deviceConfiguration = new DeviceConfiguration(appId, |
| segmentRoutingManager.cfgService); |
| |
| arpHandler = new ArpHandler(segmentRoutingManager); |
| icmpHandler = new IcmpHandler(segmentRoutingManager); |
| ipHandler = new IpHandler(segmentRoutingManager); |
| routingRulePopulator = new RoutingRulePopulator(segmentRoutingManager); |
| defaultRoutingHandler = new DefaultRoutingHandler(segmentRoutingManager); |
| |
| tunnelHandler = new TunnelHandler(linkService, deviceConfiguration, |
| groupHandlerMap, tunnelStore); |
| policyHandler = new PolicyHandler(appId, deviceConfiguration, |
| flowObjectiveService, |
| tunnelHandler, policyStore); |
| |
| for (Device device : deviceService.getDevices()) { |
| // 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. |
| if (groupHandlerMap.get(device.id()) == null) { |
| DefaultGroupHandler groupHandler; |
| try { |
| groupHandler = DefaultGroupHandler. |
| createGroupHandler(device.id(), |
| appId, |
| deviceConfiguration, |
| linkService, |
| flowObjectiveService, |
| segmentRoutingManager); |
| } catch (DeviceConfigNotFoundException e) { |
| log.warn(e.getMessage() + " Aborting configureNetwork."); |
| return; |
| } |
| groupHandlerMap.put(device.id(), groupHandler); |
| |
| // Also, in some cases, drivers may need extra |
| // information to process rules (eg. Router IP/MAC); and so, we send |
| // port addressing rules to the driver as well, irrespective of whether |
| // this instance is the master or not. |
| defaultRoutingHandler.populatePortAddressingRules(device.id()); |
| hostHandler.readInitialHosts(); |
| } |
| if (mastershipService.isLocalMaster(device.id())) { |
| DefaultGroupHandler groupHandler = groupHandlerMap.get(device.id()); |
| groupHandler.createGroupsFromSubnetConfig(); |
| routingRulePopulator.populateSubnetBroadcastRule(device.id()); |
| groupHandler.createGroupsForXConnect(device.id()); |
| routingRulePopulator.populateXConnectBroadcastRule(device.id()); |
| } |
| } |
| |
| defaultRoutingHandler.startPopulationProcess(); |
| } |
| |
| @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 Config added."); |
| configureNetwork(); |
| break; |
| case CONFIG_UPDATED: |
| log.info("Segment Routing Config updated."); |
| // TODO support dynamic configuration |
| break; |
| default: |
| break; |
| } |
| } else if (event.configClass().equals(SegmentRoutingAppConfig.class)) { |
| checkState(netcfgHandler != null, "NetworkConfigEventHandler is not initialized"); |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| netcfgHandler.processVRouterConfigAdded(event); |
| break; |
| case CONFIG_UPDATED: |
| netcfgHandler.processVRouterConfigUpdated(event); |
| break; |
| case CONFIG_REMOVED: |
| netcfgHandler.processVRouterConfigRemoved(event); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |
| |
| 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.processHostRemoveEvent(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; |
| } |
| } |
| } |
| } |