| /* |
| * Copyright 2014-2015 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.cordvtn; |
| |
| 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.IpAddress; |
| import org.onlab.packet.TpPort; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.cluster.LeadershipEvent; |
| import org.onosproject.cluster.LeadershipEventListener; |
| import org.onosproject.cluster.LeadershipService; |
| import org.onosproject.cluster.NodeId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.mastership.MastershipService; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.config.ConfigFactory; |
| import org.onosproject.net.config.NetworkConfigRegistry; |
| import org.onosproject.net.config.NetworkConfigService; |
| 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.host.HostEvent; |
| import org.onosproject.net.host.HostListener; |
| import org.onosproject.net.host.HostService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.EventuallyConsistentMap; |
| import org.onosproject.store.service.LogicalClockService; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.stream.Collectors; |
| |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.cordvtn.OvsdbNode.State.INIT; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * CORD VTN Application that provisions overlay virtual tenant networks. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class CordVtn implements CordVtnService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LogicalClockService clockService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LeadershipService leadershipService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigService configService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigRegistry configRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected MastershipService mastershipService; |
| |
| private static final int DEFAULT_NUM_THREADS = 1; |
| private static final KryoNamespace.Builder NODE_SERIALIZER = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(OvsdbNode.class); |
| |
| private final ExecutorService eventExecutor = Executors.newFixedThreadPool( |
| DEFAULT_NUM_THREADS, groupedThreads("onos/cordvtn", "event-handler")); |
| |
| private final LeadershipEventListener leadershipListener = new InternalLeadershipListener(); |
| private final DeviceListener deviceListener = new InternalDeviceListener(); |
| private final HostListener hostListener = new InternalHostListener(); |
| private final NodeHandler nodeHandler = new NodeHandler(); |
| private final BridgeHandler bridgeHandler = new BridgeHandler(); |
| private final VirtualMachineHandler vmHandler = new VirtualMachineHandler(); |
| |
| private final ConfigFactory configFactory = |
| new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY, CordVtnConfig.class, "cordvtn") { |
| @Override |
| public CordVtnConfig createConfig() { |
| return new CordVtnConfig(); |
| } |
| }; |
| |
| private ApplicationId appId; |
| private NodeId local; |
| private EventuallyConsistentMap<DeviceId, OvsdbNode> nodeStore; |
| private NodeConnectionManager nodeConnectionManager; |
| |
| @Activate |
| protected void activate() { |
| appId = coreService.registerApplication("org.onosproject.cordvtn"); |
| |
| local = clusterService.getLocalNode().id(); |
| nodeStore = storageService.<DeviceId, OvsdbNode>eventuallyConsistentMapBuilder() |
| .withName("cordvtn-nodestore") |
| .withSerializer(NODE_SERIALIZER) |
| .withTimestampProvider((k, v) -> clockService.getTimestamp()) |
| .build(); |
| configRegistry.registerConfigFactory(configFactory); |
| |
| deviceService.addListener(deviceListener); |
| hostService.addListener(hostListener); |
| leadershipService.addListener(leadershipListener); |
| leadershipService.runForLeadership(appId.name()); |
| nodeConnectionManager = new NodeConnectionManager(appId, local, nodeStore, |
| mastershipService, leadershipService); |
| nodeConnectionManager.start(); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| nodeConnectionManager.stop(); |
| leadershipService.removeListener(leadershipListener); |
| leadershipService.withdraw(appId.name()); |
| deviceService.removeListener(deviceListener); |
| hostService.removeListener(hostListener); |
| eventExecutor.shutdown(); |
| nodeStore.destroy(); |
| configRegistry.unregisterConfigFactory(configFactory); |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void addNode(String hostname, IpAddress ip, TpPort port) { |
| DefaultOvsdbNode node = new DefaultOvsdbNode(hostname, ip, port, DeviceId.NONE, INIT); |
| |
| if (nodeStore.containsKey(node.deviceId())) { |
| log.warn("Node {} with ovsdb-server {}:{} already exists", hostname, ip, port); |
| return; |
| } |
| nodeStore.put(node.deviceId(), node); |
| log.info("New node {} with ovsdb-server {}:{} has been added", hostname, ip, port); |
| } |
| |
| @Override |
| public void deleteNode(IpAddress ip, TpPort port) { |
| DeviceId deviceId = DeviceId.deviceId("ovsdb:" + ip + ":" + port); |
| OvsdbNode node = nodeStore.get(deviceId); |
| |
| if (node == null) { |
| log.warn("Node with ovsdb-server on {}:{} does not exist", ip, port); |
| return; |
| } |
| nodeConnectionManager.disconnectNode(node); |
| nodeStore.remove(node.deviceId()); |
| } |
| |
| @Override |
| public int getNodeCount() { |
| return nodeStore.size(); |
| } |
| |
| @Override |
| public List<OvsdbNode> getNodes() { |
| return nodeStore.values() |
| .stream() |
| .collect(Collectors.toList()); |
| } |
| |
| private void initialSetup() { |
| // Read ovsdb nodes from network config |
| CordVtnConfig config = configService.getConfig(appId, CordVtnConfig.class); |
| if (config == null) { |
| log.warn("No configuration found"); |
| return; |
| } |
| config.ovsdbNodes().forEach( |
| node -> addNode(node.hostname(), node.ip(), node.port())); |
| } |
| |
| private synchronized void processLeadershipChange(NodeId leader) { |
| // Only the leader performs the initial setup |
| if (leader == null || !leader.equals(local)) { |
| return; |
| } |
| initialSetup(); |
| } |
| |
| private class InternalLeadershipListener implements LeadershipEventListener { |
| |
| @Override |
| public void event(LeadershipEvent event) { |
| if (event.subject().topic().equals(appId.name())) { |
| processLeadershipChange(event.subject().leader()); |
| } |
| } |
| } |
| |
| private class InternalDeviceListener implements DeviceListener { |
| |
| @Override |
| public void event(DeviceEvent event) { |
| Device device = event.subject(); |
| ConnectionHandler handler = |
| (device.type() == Device.Type.CONTROLLER ? nodeHandler : bridgeHandler); |
| |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| eventExecutor.submit(() -> handler.connected(device)); |
| break; |
| case DEVICE_AVAILABILITY_CHANGED: |
| eventExecutor.submit(() -> handler.disconnected(device)); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class InternalHostListener implements HostListener { |
| |
| @Override |
| public void event(HostEvent event) { |
| Host vm = event.subject(); |
| |
| switch (event.type()) { |
| case HOST_ADDED: |
| eventExecutor.submit(() -> vmHandler.connected(vm)); |
| break; |
| case HOST_REMOVED: |
| eventExecutor.submit(() -> vmHandler.disconnected(vm)); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| private class NodeHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| // create bridge and set bridgeId |
| // set node state connected |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| // set node state disconnected if the node exists |
| // which means that the node is not deleted explicitly |
| } |
| } |
| |
| private class BridgeHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| // create vxlan port |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| |
| } |
| } |
| |
| private class VirtualMachineHandler implements ConnectionHandler<Host> { |
| |
| @Override |
| public void connected(Host host) { |
| // install flow rules for this vm |
| } |
| |
| @Override |
| public void disconnected(Host host) { |
| // uninstall flow rules associated with this vm |
| } |
| } |
| } |