Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.cordvtn.impl; |
| 17 | |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 18 | import com.google.common.collect.Sets; |
| 19 | import org.apache.felix.scr.annotations.Activate; |
| 20 | import org.apache.felix.scr.annotations.Component; |
| 21 | import org.apache.felix.scr.annotations.Deactivate; |
| 22 | import org.apache.felix.scr.annotations.Reference; |
| 23 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 24 | import org.apache.felix.scr.annotations.Service; |
| 25 | import org.onlab.packet.Ethernet; |
| 26 | import org.onlab.packet.Ip4Address; |
| 27 | import org.onlab.packet.IpAddress; |
| 28 | import org.onlab.packet.MacAddress; |
| 29 | import org.onlab.packet.VlanId; |
| 30 | import org.onosproject.cordvtn.api.CordVtnConfig; |
| 31 | import org.onosproject.cordvtn.api.CordVtnService; |
| 32 | import org.onosproject.cordvtn.api.Instance; |
| 33 | import org.onosproject.core.ApplicationId; |
| 34 | import org.onosproject.core.CoreService; |
| 35 | import org.onosproject.dhcp.DhcpService; |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 36 | import org.onosproject.dhcp.IpAssignment; |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 37 | import org.onosproject.mastership.MastershipService; |
| 38 | import org.onosproject.net.ConnectPoint; |
| 39 | import org.onosproject.net.DefaultAnnotations; |
| 40 | import org.onosproject.net.Host; |
| 41 | import org.onosproject.net.HostId; |
| 42 | import org.onosproject.net.HostLocation; |
| 43 | import org.onosproject.net.Port; |
| 44 | import org.onosproject.net.config.ConfigFactory; |
| 45 | import org.onosproject.net.config.NetworkConfigEvent; |
| 46 | import org.onosproject.net.config.NetworkConfigListener; |
| 47 | import org.onosproject.net.config.NetworkConfigRegistry; |
| 48 | import org.onosproject.net.config.basics.SubjectFactories; |
| 49 | import org.onosproject.net.device.DeviceService; |
| 50 | import org.onosproject.net.host.DefaultHostDescription; |
| 51 | import org.onosproject.net.host.HostDescription; |
| 52 | import org.onosproject.net.host.HostEvent; |
| 53 | import org.onosproject.net.host.HostListener; |
| 54 | import org.onosproject.net.host.HostProvider; |
| 55 | import org.onosproject.net.host.HostProviderRegistry; |
| 56 | import org.onosproject.net.host.HostProviderService; |
| 57 | import org.onosproject.net.host.HostService; |
| 58 | import org.onosproject.net.packet.PacketContext; |
| 59 | import org.onosproject.net.packet.PacketProcessor; |
| 60 | import org.onosproject.net.packet.PacketService; |
| 61 | import org.onosproject.net.provider.AbstractProvider; |
| 62 | import org.onosproject.net.provider.ProviderId; |
| 63 | import org.onosproject.xosclient.api.OpenStackAccess; |
| 64 | import org.onosproject.xosclient.api.VtnPort; |
| 65 | import org.onosproject.xosclient.api.VtnPortApi; |
| 66 | import org.onosproject.xosclient.api.VtnService; |
| 67 | import org.onosproject.xosclient.api.VtnServiceApi; |
| 68 | import org.onosproject.xosclient.api.VtnServiceId; |
| 69 | import org.onosproject.xosclient.api.XosAccess; |
| 70 | import org.onosproject.xosclient.api.XosClientService; |
| 71 | import org.slf4j.Logger; |
| 72 | |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 73 | import java.util.Date; |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 74 | import java.util.Map; |
| 75 | import java.util.Objects; |
| 76 | import java.util.Set; |
| 77 | import java.util.concurrent.ExecutorService; |
| 78 | import java.util.stream.Collectors; |
| 79 | import java.util.stream.StreamSupport; |
| 80 | |
| 81 | import static com.google.common.base.Preconditions.checkNotNull; |
| 82 | import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor; |
| 83 | import static org.onlab.util.Tools.groupedThreads; |
| 84 | import static org.onosproject.cordvtn.api.Instance.*; |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 85 | import static org.onosproject.dhcp.IpAssignment.AssignmentStatus.Option_RangeNotEnforced; |
| 86 | import static org.onosproject.xosclient.api.VtnService.NetworkType.MANAGEMENT; |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 87 | import static org.onosproject.xosclient.api.VtnService.NetworkType.PRIVATE; |
| 88 | import static org.slf4j.LoggerFactory.getLogger; |
| 89 | |
| 90 | /** |
| 91 | * Adds or removes instances to network services. |
| 92 | */ |
| 93 | @Component(immediate = true) |
| 94 | @Service(value = CordVtnInstanceManager.class) |
| 95 | public class CordVtnInstanceManager extends AbstractProvider implements HostProvider { |
| 96 | |
| 97 | protected final Logger log = getLogger(getClass()); |
| 98 | |
| 99 | private static final String XOS_ACCESS_ERROR = "XOS access is not configured"; |
| 100 | private static final String OPENSTACK_ACCESS_ERROR = "OpenStack access is not configured"; |
| 101 | private static final Ip4Address DEFAULT_DNS = Ip4Address.valueOf("8.8.8.8"); |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 102 | private static final int DHCP_INFINITE_LEASE = -1; |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 103 | |
| 104 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 105 | protected CoreService coreService; |
| 106 | |
| 107 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 108 | protected NetworkConfigRegistry configRegistry; |
| 109 | |
| 110 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 111 | protected HostProviderRegistry hostProviderRegistry; |
| 112 | |
| 113 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 114 | protected DeviceService deviceService; |
| 115 | |
| 116 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 117 | protected HostService hostService; |
| 118 | |
| 119 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 120 | protected PacketService packetService; |
| 121 | |
| 122 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 123 | protected DhcpService dhcpService; |
| 124 | |
| 125 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 126 | protected MastershipService mastershipService; |
| 127 | |
| 128 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 129 | protected XosClientService xosClient; |
| 130 | |
| 131 | private final ConfigFactory configFactory = |
| 132 | new ConfigFactory(SubjectFactories.APP_SUBJECT_FACTORY, CordVtnConfig.class, "cordvtn") { |
| 133 | @Override |
| 134 | public CordVtnConfig createConfig() { |
| 135 | return new CordVtnConfig(); |
| 136 | } |
| 137 | }; |
| 138 | |
| 139 | private final ExecutorService eventExecutor = |
| 140 | newSingleThreadScheduledExecutor(groupedThreads("onos/cordvtn-instance", "event-handler")); |
| 141 | private final PacketProcessor packetProcessor = new InternalPacketProcessor(); |
| 142 | private final HostListener hostListener = new InternalHostListener(); |
| 143 | private final NetworkConfigListener configListener = new InternalConfigListener(); |
| 144 | |
| 145 | private ApplicationId appId; |
| 146 | private HostProviderService hostProvider; |
| 147 | private CordVtnArpProxy arpProxy; // TODO make it a component service |
| 148 | private MacAddress privateGatewayMac = MacAddress.NONE; |
| 149 | private XosAccess xosAccess = null; |
| 150 | private OpenStackAccess osAccess = null; |
| 151 | |
| 152 | /** |
| 153 | * Creates an cordvtn host location provider. |
| 154 | */ |
| 155 | public CordVtnInstanceManager() { |
| 156 | super(new ProviderId("host", CordVtnService.CORDVTN_APP_ID)); |
| 157 | } |
| 158 | |
| 159 | @Activate |
| 160 | protected void activate() { |
| 161 | appId = coreService.registerApplication(CordVtnService.CORDVTN_APP_ID); |
| 162 | |
| 163 | arpProxy = new CordVtnArpProxy(appId, packetService, hostService); |
| 164 | packetService.addProcessor(packetProcessor, PacketProcessor.director(0)); |
| 165 | arpProxy.requestPacket(); |
| 166 | |
| 167 | hostService.addListener(hostListener); |
| 168 | hostProvider = hostProviderRegistry.register(this); |
| 169 | |
| 170 | configRegistry.registerConfigFactory(configFactory); |
| 171 | configRegistry.addListener(configListener); |
| 172 | |
| 173 | log.info("Started"); |
| 174 | } |
| 175 | |
| 176 | @Deactivate |
| 177 | protected void deactivate() { |
| 178 | hostProviderRegistry.unregister(this); |
| 179 | hostService.removeListener(hostListener); |
| 180 | |
| 181 | packetService.removeProcessor(packetProcessor); |
| 182 | |
| 183 | configRegistry.unregisterConfigFactory(configFactory); |
| 184 | configRegistry.removeListener(configListener); |
| 185 | |
| 186 | eventExecutor.shutdown(); |
| 187 | log.info("Stopped"); |
| 188 | } |
| 189 | |
| 190 | @Override |
| 191 | public void triggerProbe(Host host) { |
| 192 | /* |
| 193 | * Note: In CORD deployment, we assume that all hosts are configured. |
| 194 | * Therefore no probe is required. |
| 195 | */ |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Adds a service instance at a given connect point. |
| 200 | * |
| 201 | * @param connectPoint connect point of the instance |
| 202 | */ |
| 203 | public void addInstance(ConnectPoint connectPoint) { |
| 204 | Port port = deviceService.getPort(connectPoint.deviceId(), connectPoint.port()); |
| 205 | if (port == null) { |
| 206 | log.debug("No port found from {}", connectPoint); |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | VtnPort vtnPort = getVtnPort(port.annotations().value("portName")); |
| 211 | if (vtnPort == null) { |
| 212 | return; |
| 213 | } |
| 214 | |
| 215 | VtnService vtnService = getVtnService(vtnPort.serviceId()); |
| 216 | if (vtnService == null) { |
| 217 | return; |
| 218 | } |
| 219 | |
| 220 | // Added CREATE_TIME intentionally to trigger HOST_UPDATED event for the |
| 221 | // existing instances. |
| 222 | DefaultAnnotations.Builder annotations = DefaultAnnotations.builder() |
| 223 | .set(SERVICE_TYPE, vtnService.serviceType().toString()) |
| 224 | .set(SERVICE_ID, vtnPort.serviceId().id()) |
| 225 | .set(PORT_ID, vtnPort.id().id()) |
| 226 | .set(CREATE_TIME, String.valueOf(System.currentTimeMillis())); |
| 227 | |
| 228 | HostDescription hostDesc = new DefaultHostDescription( |
| 229 | vtnPort.mac(), |
| 230 | VlanId.NONE, |
| 231 | new HostLocation(connectPoint, System.currentTimeMillis()), |
| 232 | Sets.newHashSet(vtnPort.ip()), |
| 233 | annotations.build()); |
| 234 | |
| 235 | HostId hostId = HostId.hostId(vtnPort.mac()); |
| 236 | hostProvider.hostDetected(hostId, hostDesc, false); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Adds a service instance with given host ID and host description. |
| 241 | * |
| 242 | * @param hostId host id |
| 243 | * @param description host description |
| 244 | */ |
| 245 | public void addInstance(HostId hostId, HostDescription description) { |
| 246 | hostProvider.hostDetected(hostId, description, false); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Removes a service instance from a given connect point. |
| 251 | * |
| 252 | * @param connectPoint connect point |
| 253 | */ |
| 254 | public void removeInstance(ConnectPoint connectPoint) { |
| 255 | hostService.getConnectedHosts(connectPoint) |
| 256 | .stream() |
| 257 | .forEach(host -> hostProvider.hostVanished(host.id())); |
| 258 | } |
| 259 | |
| 260 | /** |
| 261 | * Removes service instance with given host ID. |
| 262 | * |
| 263 | * @param hostId host id |
| 264 | */ |
| 265 | public void removeInstance(HostId hostId) { |
| 266 | hostProvider.hostVanished(hostId); |
| 267 | } |
| 268 | |
| 269 | private void instanceDetected(Instance instance) { |
| 270 | VtnService service = getVtnService(instance.serviceId()); |
| 271 | if (service == null) { |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | if (service.networkType().equals(PRIVATE)) { |
| 276 | arpProxy.addGateway(service.serviceIp(), privateGatewayMac); |
| 277 | arpProxy.sendGratuitousArpForGateway(service.serviceIp(), Sets.newHashSet(instance)); |
| 278 | } |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 279 | if (!instance.isNestedInstance()) { |
| 280 | registerDhcpLease(instance, service); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | private void instanceRemoved(Instance instance) { |
| 285 | VtnService service = getVtnService(instance.serviceId()); |
| 286 | if (service == null) { |
| 287 | return; |
| 288 | } |
| 289 | |
| 290 | if (service.networkType().equals(PRIVATE) && getInstances(service.id()).isEmpty()) { |
| 291 | arpProxy.removeGateway(service.serviceIp()); |
| 292 | } |
| 293 | |
| 294 | if (!instance.isNestedInstance()) { |
| 295 | dhcpService.removeStaticMapping(instance.mac()); |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | private void registerDhcpLease(Instance instance, VtnService service) { |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 300 | Ip4Address broadcast = Ip4Address.makeMaskedAddress( |
| 301 | instance.ipAddress(), |
| 302 | service.subnet().prefixLength()); |
| 303 | |
| 304 | IpAssignment.Builder ipBuilder = IpAssignment.builder() |
| 305 | .ipAddress(instance.ipAddress()) |
| 306 | .leasePeriod(DHCP_INFINITE_LEASE) |
| 307 | .timestamp(new Date()) |
| 308 | .subnetMask(Ip4Address.makeMaskPrefix(service.subnet().prefixLength())) |
| 309 | .broadcast(broadcast) |
| 310 | .domainServer(DEFAULT_DNS) |
| 311 | .assignmentStatus(Option_RangeNotEnforced); |
| 312 | |
| 313 | if (service.networkType() != MANAGEMENT) { |
| 314 | ipBuilder = ipBuilder.routerAddress(service.serviceIp().getIp4Address()); |
| 315 | } |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 316 | |
| 317 | log.debug("Set static DHCP mapping for {} {}", instance.mac(), instance.ipAddress()); |
Hyunsun Moon | 04b1fe9 | 2016-05-18 21:28:06 -0700 | [diff] [blame^] | 318 | dhcpService.setStaticMapping(instance.mac(), ipBuilder.build()); |
Hyunsun Moon | 17f0cf8 | 2016-05-16 04:32:45 -0700 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | private VtnService getVtnService(VtnServiceId serviceId) { |
| 322 | checkNotNull(osAccess, OPENSTACK_ACCESS_ERROR); |
| 323 | checkNotNull(xosAccess, XOS_ACCESS_ERROR); |
| 324 | |
| 325 | // TODO remove openstack access when XOS provides all information |
| 326 | VtnServiceApi serviceApi = xosClient.getClient(xosAccess).vtnService(); |
| 327 | VtnService service = serviceApi.service(serviceId, osAccess); |
| 328 | if (service == null) { |
| 329 | log.warn("Failed to get VtnService for {}", serviceId); |
| 330 | } |
| 331 | return service; |
| 332 | } |
| 333 | |
| 334 | private VtnPort getVtnPort(String portName) { |
| 335 | checkNotNull(osAccess, OPENSTACK_ACCESS_ERROR); |
| 336 | checkNotNull(xosAccess, XOS_ACCESS_ERROR); |
| 337 | |
| 338 | // TODO remove openstack access when XOS provides all information |
| 339 | VtnPortApi portApi = xosClient.getClient(xosAccess).vtnPort(); |
| 340 | VtnPort vtnPort = portApi.vtnPort(portName, osAccess); |
| 341 | if (vtnPort == null) { |
| 342 | log.warn("Failed to get port information of {}", portName); |
| 343 | } |
| 344 | return vtnPort; |
| 345 | } |
| 346 | |
| 347 | private Set<Instance> getInstances(VtnServiceId serviceId) { |
| 348 | return StreamSupport.stream(hostService.getHosts().spliterator(), false) |
| 349 | .filter(host -> Objects.equals( |
| 350 | serviceId.id(), |
| 351 | host.annotations().value(Instance.SERVICE_ID))) |
| 352 | .map(Instance::of) |
| 353 | .collect(Collectors.toSet()); |
| 354 | } |
| 355 | |
| 356 | private void readConfiguration() { |
| 357 | CordVtnConfig config = configRegistry.getConfig(appId, CordVtnConfig.class); |
| 358 | if (config == null) { |
| 359 | log.debug("No configuration found"); |
| 360 | return; |
| 361 | } |
| 362 | |
| 363 | log.info("Load CORD-VTN configurations"); |
| 364 | |
| 365 | xosAccess = config.xosAccess(); |
| 366 | osAccess = config.openstackAccess(); |
| 367 | privateGatewayMac = config.privateGatewayMac(); |
| 368 | |
| 369 | Map<IpAddress, MacAddress> publicGateways = config.publicGateways(); |
| 370 | publicGateways.entrySet() |
| 371 | .stream() |
| 372 | .forEach(entry -> { |
| 373 | arpProxy.addGateway(entry.getKey(), entry.getValue()); |
| 374 | log.debug("Added public gateway IP {}, MAC {}", |
| 375 | entry.getKey(), entry.getValue()); |
| 376 | }); |
| 377 | // TODO notice gateway MAC change to VMs holds this gateway IP |
| 378 | } |
| 379 | |
| 380 | private class InternalHostListener implements HostListener { |
| 381 | |
| 382 | @Override |
| 383 | public void event(HostEvent event) { |
| 384 | Host host = event.subject(); |
| 385 | if (!mastershipService.isLocalMaster(host.location().deviceId())) { |
| 386 | // do not allow to proceed without mastership |
| 387 | return; |
| 388 | } |
| 389 | |
| 390 | Instance instance = Instance.of(host); |
| 391 | switch (event.type()) { |
| 392 | case HOST_UPDATED: |
| 393 | case HOST_ADDED: |
| 394 | eventExecutor.execute(() -> instanceDetected(instance)); |
| 395 | break; |
| 396 | case HOST_REMOVED: |
| 397 | eventExecutor.execute(() -> instanceRemoved(instance)); |
| 398 | break; |
| 399 | default: |
| 400 | break; |
| 401 | } |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | private class InternalPacketProcessor implements PacketProcessor { |
| 406 | |
| 407 | @Override |
| 408 | public void process(PacketContext context) { |
| 409 | if (context.isHandled()) { |
| 410 | return; |
| 411 | } |
| 412 | Ethernet ethPacket = context.inPacket().parsed(); |
| 413 | if (ethPacket == null || ethPacket.getEtherType() != Ethernet.TYPE_ARP) { |
| 414 | return; |
| 415 | } |
| 416 | arpProxy.processArpPacket(context, ethPacket); |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | private class InternalConfigListener implements NetworkConfigListener { |
| 421 | |
| 422 | @Override |
| 423 | public void event(NetworkConfigEvent event) { |
| 424 | if (!event.configClass().equals(CordVtnConfig.class)) { |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | switch (event.type()) { |
| 429 | case CONFIG_ADDED: |
| 430 | case CONFIG_UPDATED: |
| 431 | readConfiguration(); |
| 432 | break; |
| 433 | default: |
| 434 | break; |
| 435 | } |
| 436 | } |
| 437 | } |
| 438 | } |