| /* |
| * 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 com.google.common.collect.Collections2; |
| import com.google.common.collect.Sets; |
| 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.util.KryoNamespace; |
| import org.onosproject.cluster.ClusterService; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.Device; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.Host; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| 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.ovsdb.controller.OvsdbClientService; |
| import org.onosproject.ovsdb.controller.OvsdbController; |
| import org.onosproject.ovsdb.controller.OvsdbNodeId; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.ConsistentMap; |
| import org.onosproject.store.service.Serializer; |
| import org.onosproject.store.service.StorageService; |
| import org.onosproject.store.service.Versioned; |
| import org.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.NoSuchElementException; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.onosproject.net.Device.Type.SWITCH; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provides initial setup or cleanup for provisioning virtual tenant networks |
| * on ovsdb, integration bridge and vm when they are added or deleted. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class CordVtn implements CordVtnService { |
| |
| protected final Logger log = getLogger(getClass()); |
| |
| private static final int NUM_THREADS = 1; |
| private static final KryoNamespace.Builder NODE_SERIALIZER = KryoNamespace.newBuilder() |
| .register(KryoNamespaces.API) |
| .register(DefaultOvsdbNode.class); |
| private static final String DEFAULT_BRIDGE_NAME = "br-int"; |
| private static final String DEFAULT_TUNNEL = "vxlan"; |
| private static final Map<String, String> DEFAULT_TUNNEL_OPTIONS = new HashMap<String, String>() { |
| { |
| put("key", "flow"); |
| put("local_ip", "flow"); |
| put("remote_ip", "flow"); |
| } |
| }; |
| private static final int DPID_BEGIN = 3; |
| private static final int OFPORT = 6653; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected StorageService storageService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected HostService hostService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OvsdbController controller; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ClusterService clusterService; |
| |
| private final ExecutorService eventExecutor = Executors |
| .newFixedThreadPool(NUM_THREADS, groupedThreads("onos/cordvtn", "event-handler")); |
| |
| private final DeviceListener deviceListener = new InternalDeviceListener(); |
| private final HostListener hostListener = new InternalHostListener(); |
| |
| private final OvsdbHandler ovsdbHandler = new OvsdbHandler(); |
| private final BridgeHandler bridgeHandler = new BridgeHandler(); |
| private final VmHandler vmHandler = new VmHandler(); |
| |
| private ConsistentMap<DeviceId, OvsdbNode> nodeStore; |
| |
| @Activate |
| protected void activate() { |
| ApplicationId appId = coreService.registerApplication("org.onosproject.cordvtn"); |
| nodeStore = storageService.<DeviceId, OvsdbNode>consistentMapBuilder() |
| .withSerializer(Serializer.using(NODE_SERIALIZER.build())) |
| .withName("cordvtn-nodestore") |
| .withApplicationId(appId) |
| .build(); |
| |
| deviceService.addListener(deviceListener); |
| hostService.addListener(hostListener); |
| |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| deviceService.removeListener(deviceListener); |
| hostService.removeListener(hostListener); |
| |
| eventExecutor.shutdown(); |
| nodeStore.clear(); |
| |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public void addNode(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| nodeStore.putIfAbsent(ovsdb.deviceId(), ovsdb); |
| |
| if (isNodeConnected(ovsdb)) { |
| init(ovsdb); |
| } else { |
| connect(ovsdb); |
| } |
| } |
| |
| @Override |
| public void deleteNode(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| if (deviceService.getDevice(ovsdb.deviceId()) != null) { |
| if (deviceService.isAvailable(ovsdb.deviceId())) { |
| log.warn("Cannot delete connected node {}", ovsdb.host()); |
| return; |
| } |
| } |
| nodeStore.remove(ovsdb.deviceId()); |
| } |
| |
| @Override |
| public void connect(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| if (!nodeStore.containsKey(ovsdb.deviceId())) { |
| log.warn("Node {} does not exist", ovsdb.host()); |
| return; |
| } |
| |
| if (!isNodeConnected(ovsdb)) { |
| controller.connect(ovsdb.ip(), ovsdb.port()); |
| } |
| } |
| |
| @Override |
| public void disconnect(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| if (!nodeStore.containsKey(ovsdb.deviceId())) { |
| log.warn("Node {} does not exist", ovsdb.host()); |
| return; |
| } |
| |
| if (isNodeConnected(ovsdb)) { |
| OvsdbClientService ovsdbClient = getOvsdbClient(ovsdb); |
| ovsdbClient.disconnect(); |
| } |
| } |
| |
| private void init(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| if (!nodeStore.containsKey(ovsdb.deviceId())) { |
| log.warn("Node {} does not exist", ovsdb.host()); |
| return; |
| } |
| |
| if (!isNodeConnected(ovsdb)) { |
| log.warn("Node {} is not connected", ovsdb.host()); |
| return; |
| } |
| |
| if (deviceService.getDevice(ovsdb.intBrId()) == null || |
| !deviceService.isAvailable(ovsdb.intBrId())) { |
| createIntegrationBridge(ovsdb); |
| } else if (!checkVxlanPort(ovsdb)) { |
| createVxlanPort(ovsdb); |
| } |
| } |
| |
| @Override |
| public int getNodeCount() { |
| return nodeStore.size(); |
| } |
| |
| @Override |
| public OvsdbNode getNode(DeviceId deviceId) { |
| Versioned<OvsdbNode> ovsdb = nodeStore.get(deviceId); |
| if (ovsdb != null) { |
| return ovsdb.value(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public List<OvsdbNode> getNodes() { |
| List<OvsdbNode> ovsdbs = new ArrayList<>(); |
| ovsdbs.addAll(Collections2.transform(nodeStore.values(), Versioned::value)); |
| return ovsdbs; |
| } |
| |
| @Override |
| public boolean isNodeConnected(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| OvsdbClientService ovsdbClient = getOvsdbClient(ovsdb); |
| if (ovsdbClient == null) { |
| return false; |
| } else { |
| return ovsdbClient.isConnected(); |
| } |
| } |
| |
| private OvsdbClientService getOvsdbClient(OvsdbNode ovsdb) { |
| checkNotNull(ovsdb); |
| |
| OvsdbClientService ovsdbClient = controller.getOvsdbClient( |
| new OvsdbNodeId(ovsdb.ip(), ovsdb.port().toInt())); |
| if (ovsdbClient == null) { |
| log.debug("Couldn't find ovsdb client for {}", ovsdb.host()); |
| } |
| return ovsdbClient; |
| } |
| |
| private void createIntegrationBridge(OvsdbNode ovsdb) { |
| List<ControllerInfo> controllers = new ArrayList<>(); |
| Sets.newHashSet(clusterService.getNodes()) |
| .forEach(controller -> { |
| ControllerInfo ctrlInfo = new ControllerInfo(controller.ip(), OFPORT, "tcp"); |
| controllers.add(ctrlInfo); |
| }); |
| String dpid = ovsdb.intBrId().toString().substring(DPID_BEGIN); |
| |
| // TODO change to use bridge config |
| OvsdbClientService ovsdbClient = getOvsdbClient(ovsdb); |
| ovsdbClient.createBridge(DEFAULT_BRIDGE_NAME, dpid, controllers); |
| } |
| |
| private void createVxlanPort(OvsdbNode ovsdb) { |
| // TODO change to use tunnel config and tunnel description |
| OvsdbClientService ovsdbClient = getOvsdbClient(ovsdb); |
| ovsdbClient.createTunnel(DEFAULT_BRIDGE_NAME, DEFAULT_TUNNEL, |
| DEFAULT_TUNNEL, DEFAULT_TUNNEL_OPTIONS); |
| } |
| |
| private boolean checkVxlanPort(OvsdbNode ovsdb) { |
| // TODO change to use tunnel config |
| OvsdbClientService ovsdbClient = getOvsdbClient(ovsdb); |
| try { |
| ovsdbClient.getPorts().stream() |
| .filter(p -> p.portName().value().equals(DEFAULT_TUNNEL)) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| return false; |
| } |
| return true; |
| } |
| |
| private class InternalDeviceListener implements DeviceListener { |
| |
| @Override |
| public void event(DeviceEvent event) { |
| Device device = event.subject(); |
| ConnectionHandler handler = (device.type() == SWITCH ? bridgeHandler : ovsdbHandler); |
| |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| eventExecutor.submit(() -> handler.connected(device)); |
| break; |
| case DEVICE_AVAILABILITY_CHANGED: |
| if (deviceService.isAvailable(device.id())) { |
| eventExecutor.submit(() -> handler.connected(device)); |
| } else { |
| 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 OvsdbHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| log.info("Ovsdb {} is connected", device.id()); |
| |
| OvsdbNode ovsdb = getNode(device.id()); |
| if (ovsdb != null) { |
| init(ovsdb); |
| } |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| log.warn("Ovsdb {} is disconnected", device.id()); |
| } |
| } |
| |
| private class BridgeHandler implements ConnectionHandler<Device> { |
| |
| @Override |
| public void connected(Device device) { |
| log.info("Integration Bridge {} is detected", device.id()); |
| |
| OvsdbNode ovsdb; |
| try { |
| ovsdb = getNodes().stream() |
| .filter(node -> node.intBrId().equals(device.id())) |
| .findFirst().get(); |
| } catch (NoSuchElementException e) { |
| log.warn("Couldn't find OVSDB associated with {}", device.id()); |
| return; |
| } |
| |
| if (!checkVxlanPort(ovsdb)) { |
| createVxlanPort(ovsdb); |
| } |
| } |
| |
| @Override |
| public void disconnected(Device device) { |
| log.info("Integration Bridge {} is vanished", device.id()); |
| } |
| } |
| |
| private class VmHandler implements ConnectionHandler<Host> { |
| |
| @Override |
| public void connected(Host host) { |
| log.info("VM {} is detected", host.id()); |
| } |
| |
| @Override |
| public void disconnected(Host host) { |
| log.info("VM {} is vanished", host.id()); |
| } |
| } |
| } |