Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-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.openstacknetworking.impl; |
| 17 | |
| 18 | import com.google.common.base.Strings; |
| 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.onlab.packet.Ethernet; |
| 25 | import org.onlab.packet.IpAddress; |
| 26 | import org.onlab.packet.MacAddress; |
| 27 | import org.onosproject.cluster.ClusterService; |
| 28 | import org.onosproject.cluster.LeadershipService; |
| 29 | import org.onosproject.cluster.NodeId; |
| 30 | import org.onosproject.core.ApplicationId; |
| 31 | import org.onosproject.core.CoreService; |
| 32 | import org.onosproject.net.PortNumber; |
| 33 | import org.onosproject.net.device.DeviceService; |
| 34 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 35 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 36 | import org.onosproject.net.flow.TrafficSelector; |
| 37 | import org.onosproject.net.flow.TrafficTreatment; |
| 38 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 39 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 40 | import org.onosproject.openstacknetworking.api.Constants; |
| 41 | import org.onosproject.openstacknetworking.api.InstancePort; |
| 42 | import org.onosproject.openstacknetworking.api.InstancePortService; |
| 43 | import org.onosproject.openstacknetworking.api.OpenstackRouterEvent; |
| 44 | import org.onosproject.openstacknetworking.api.OpenstackRouterListener; |
| 45 | import org.onosproject.openstacknetworking.api.OpenstackRouterService; |
| 46 | import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
| 47 | import org.onosproject.openstacknode.OpenstackNode; |
| 48 | import org.onosproject.openstacknode.OpenstackNodeEvent; |
| 49 | import org.onosproject.openstacknode.OpenstackNodeListener; |
| 50 | import org.onosproject.openstacknode.OpenstackNodeService; |
| 51 | import org.onosproject.scalablegateway.api.ScalableGatewayService; |
| 52 | import org.openstack4j.model.network.NetFloatingIP; |
| 53 | import org.openstack4j.model.network.Network; |
| 54 | import org.openstack4j.model.network.Port; |
| 55 | import org.slf4j.Logger; |
| 56 | import org.slf4j.LoggerFactory; |
| 57 | |
| 58 | import java.util.Objects; |
| 59 | import java.util.Optional; |
| 60 | import java.util.concurrent.ExecutorService; |
| 61 | |
| 62 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 63 | import static org.onlab.util.Tools.groupedThreads; |
| 64 | import static org.onosproject.openstacknetworking.api.Constants.*; |
| 65 | import static org.onosproject.openstacknetworking.impl.RulePopulatorUtil.buildExtension; |
| 66 | import static org.onosproject.openstacknode.OpenstackNodeService.NodeType.GATEWAY; |
| 67 | |
| 68 | /** |
| 69 | * Handles OpenStack floating IP events. |
| 70 | */ |
| 71 | @Component(immediate = true) |
| 72 | public class OpenstackRoutingFloatingIpHandler { |
| 73 | |
| 74 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 75 | |
| 76 | private static final String ERR_FLOW = "Failed set flows for floating IP %s: "; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | protected CoreService coreService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected DeviceService deviceService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 85 | protected FlowObjectiveService flowObjectiveService; |
| 86 | |
| 87 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 88 | protected LeadershipService leadershipService; |
| 89 | |
| 90 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 91 | protected ClusterService clusterService; |
| 92 | |
| 93 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 94 | protected OpenstackNodeService osNodeService; |
| 95 | |
| 96 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 97 | protected InstancePortService instancePortService; |
| 98 | |
| 99 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 100 | protected OpenstackRouterService osRouterService; |
| 101 | |
| 102 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 103 | protected OpenstackNetworkService osNetworkService; |
| 104 | |
| 105 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 106 | protected ScalableGatewayService gatewayService; |
| 107 | |
| 108 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 109 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 110 | private final OpenstackRouterListener floatingIpLisener = new InternalFloatingIpLisener(); |
| 111 | private final OpenstackNodeListener osNodeListener = new InternalNodeListener(); |
| 112 | |
| 113 | private ApplicationId appId; |
| 114 | private NodeId localNodeId; |
| 115 | |
| 116 | @Activate |
| 117 | protected void activate() { |
| 118 | appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| 119 | localNodeId = clusterService.getLocalNode().id(); |
| 120 | leadershipService.runForLeadership(appId.name()); |
| 121 | osRouterService.addListener(floatingIpLisener); |
| 122 | osNodeService.addListener(osNodeListener); |
| 123 | |
| 124 | log.info("Started"); |
| 125 | } |
| 126 | |
| 127 | @Deactivate |
| 128 | protected void deactivate() { |
| 129 | osNodeService.removeListener(osNodeListener); |
| 130 | osRouterService.removeListener(floatingIpLisener); |
| 131 | leadershipService.withdraw(appId.name()); |
| 132 | eventExecutor.shutdown(); |
| 133 | |
| 134 | log.info("Stopped"); |
| 135 | } |
| 136 | |
| 137 | private void floatingIpUpdated(NetFloatingIP floatingIp, String portId) { |
| 138 | Port osPort = osNetworkService.port(portId); |
| 139 | if (osPort == null) { |
| 140 | final String error = String.format(ERR_FLOW + "no port(%s) exists", |
| 141 | floatingIp.getFloatingIpAddress(), |
| 142 | floatingIp.getPortId()); |
| 143 | throw new IllegalStateException(error); |
| 144 | } |
| 145 | |
| 146 | if (Strings.isNullOrEmpty(floatingIp.getPortId())) { |
| 147 | setFloatingIpRules(floatingIp, osPort, false); |
| 148 | log.info("Disassociated floating IP:{} from fixed IP:{}", |
| 149 | floatingIp.getFloatingIpAddress(), |
| 150 | osPort.getFixedIps()); |
| 151 | } else { |
| 152 | setFloatingIpRules(floatingIp, osPort, true); |
| 153 | log.info("Associated floating IP:{} to fixed IP:{}", |
| 154 | floatingIp.getFloatingIpAddress(), |
| 155 | floatingIp.getFixedIpAddress()); |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | private void setFloatingIpRules(NetFloatingIP floatingIp, Port osPort, |
| 160 | boolean install) { |
| 161 | Network osNet = osNetworkService.network(osPort.getNetworkId()); |
| 162 | if (osNet == null) { |
| 163 | final String error = String.format(ERR_FLOW + "no network(%s) exists", |
| 164 | floatingIp.getFloatingIpAddress(), |
| 165 | osPort.getNetworkId()); |
| 166 | throw new IllegalStateException(error); |
| 167 | } |
| 168 | |
| 169 | MacAddress srcMac = MacAddress.valueOf(osPort.getMacAddress()); |
| 170 | InstancePort instPort = instancePortService.instancePort(srcMac); |
| 171 | if (instPort == null) { |
| 172 | final String error = String.format(ERR_FLOW + "no host(MAC:%s) found", |
| 173 | floatingIp.getFloatingIpAddress(), srcMac); |
| 174 | throw new IllegalStateException(error); |
| 175 | } |
| 176 | |
| 177 | setDownstreamRules(floatingIp, osNet, instPort, install); |
| 178 | setUpstreamRules(floatingIp, osNet, instPort, install); |
| 179 | } |
| 180 | |
| 181 | private void setDownstreamRules(NetFloatingIP floatingIp, Network osNet, |
| 182 | InstancePort instPort, boolean install) { |
| 183 | Optional<IpAddress> dataIp = osNodeService.dataIp(instPort.deviceId()); |
| 184 | if (!dataIp.isPresent()) { |
| 185 | log.warn(ERR_FLOW + "compute node {} is not ready", |
| 186 | floatingIp, instPort.deviceId()); |
| 187 | return; |
| 188 | } |
| 189 | |
| 190 | IpAddress floating = IpAddress.valueOf(floatingIp.getFloatingIpAddress()); |
| 191 | TrafficSelector externalSelector = DefaultTrafficSelector.builder() |
| 192 | .matchEthType(Ethernet.TYPE_IPV4) |
| 193 | .matchIPDst(floating.toIpPrefix()) |
| 194 | .build(); |
| 195 | |
| 196 | gatewayService.getGatewayDeviceIds().forEach(gnodeId -> { |
| 197 | TrafficTreatment externalTreatment = DefaultTrafficTreatment.builder() |
| 198 | .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| 199 | .setEthDst(instPort.macAddress()) |
| 200 | .setIpDst(instPort.ipAddress().getIp4Address()) |
| 201 | .setTunnelId(Long.valueOf(osNet.getProviderSegID())) |
| 202 | .extension(buildExtension( |
| 203 | deviceService, |
| 204 | gnodeId, |
| 205 | dataIp.get().getIp4Address()), |
| 206 | gnodeId) |
| 207 | .setOutput(osNodeService.tunnelPort(gnodeId).get()) |
| 208 | .build(); |
| 209 | |
| 210 | RulePopulatorUtil.setRule( |
| 211 | flowObjectiveService, |
| 212 | appId, |
| 213 | gnodeId, |
| 214 | externalSelector, |
| 215 | externalTreatment, |
| 216 | ForwardingObjective.Flag.VERSATILE, |
| 217 | PRIORITY_FLOATING_EXTERNAL, |
| 218 | install); |
| 219 | |
| 220 | // access from one VM to the other via floating IP |
| 221 | TrafficSelector internalSelector = DefaultTrafficSelector.builder() |
| 222 | .matchEthType(Ethernet.TYPE_IPV4) |
| 223 | .matchIPDst(floating.toIpPrefix()) |
| 224 | .matchInPort(osNodeService.tunnelPort(gnodeId).get()) |
| 225 | .build(); |
| 226 | |
| 227 | TrafficTreatment internalTreatment = DefaultTrafficTreatment.builder() |
| 228 | .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| 229 | .setEthDst(instPort.macAddress()) |
| 230 | .setIpDst(instPort.ipAddress().getIp4Address()) |
| 231 | .setTunnelId(Long.valueOf(osNet.getProviderSegID())) |
| 232 | .extension(buildExtension( |
| 233 | deviceService, |
| 234 | gnodeId, |
| 235 | dataIp.get().getIp4Address()), |
| 236 | gnodeId) |
| 237 | .setOutput(PortNumber.IN_PORT) |
| 238 | .build(); |
| 239 | |
| 240 | RulePopulatorUtil.setRule( |
| 241 | flowObjectiveService, |
| 242 | appId, |
| 243 | gnodeId, |
| 244 | internalSelector, |
| 245 | internalTreatment, |
| 246 | ForwardingObjective.Flag.VERSATILE, |
| 247 | PRIORITY_FLOATING_INTERNAL, |
| 248 | install); |
| 249 | }); |
| 250 | } |
| 251 | |
| 252 | private void setUpstreamRules(NetFloatingIP floatingIp, Network osNet, |
| 253 | InstancePort instPort, boolean install) { |
| 254 | IpAddress floating = IpAddress.valueOf(floatingIp.getFloatingIpAddress()); |
| 255 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 256 | .matchEthType(Ethernet.TYPE_IPV4) |
| 257 | .matchTunnelId(Long.valueOf(osNet.getProviderSegID())) |
| 258 | .matchIPSrc(instPort.ipAddress().toIpPrefix()) |
| 259 | .build(); |
| 260 | |
| 261 | gatewayService.getGatewayDeviceIds().forEach(gnodeId -> { |
| 262 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 263 | .setIpSrc(floating.getIp4Address()) |
| 264 | .setEthSrc(Constants.DEFAULT_GATEWAY_MAC) |
| 265 | .setEthDst(Constants.DEFAULT_EXTERNAL_ROUTER_MAC) |
| 266 | .setOutput(gatewayService.getUplinkPort(gnodeId)) |
| 267 | .build(); |
| 268 | |
| 269 | RulePopulatorUtil.setRule( |
| 270 | flowObjectiveService, |
| 271 | appId, |
| 272 | gnodeId, |
| 273 | selector, |
| 274 | treatment, |
| 275 | ForwardingObjective.Flag.VERSATILE, |
| 276 | PRIORITY_FLOATING_EXTERNAL, |
| 277 | install); |
| 278 | }); |
| 279 | } |
| 280 | |
| 281 | private class InternalFloatingIpLisener implements OpenstackRouterListener { |
| 282 | |
| 283 | @Override |
| 284 | public boolean isRelevant(OpenstackRouterEvent event) { |
| 285 | // do not allow to proceed without leadership |
| 286 | NodeId leader = leadershipService.getLeader(appId.name()); |
| 287 | if (!Objects.equals(localNodeId, leader)) { |
| 288 | return false; |
| 289 | } |
| 290 | return event.floatingIp() != null; |
| 291 | } |
| 292 | |
| 293 | @Override |
| 294 | public void event(OpenstackRouterEvent event) { |
| 295 | switch (event.type()) { |
| 296 | case OPENSTACK_FLOATING_IP_ASSOCIATED: |
| 297 | case OPENSTACK_FLOATING_IP_DISASSOCIATED: |
| 298 | eventExecutor.execute(() -> { |
| 299 | NetFloatingIP fip = event.floatingIp(); |
| 300 | log.debug("Floating IP {} is updated", fip.getFloatingIpAddress()); |
| 301 | floatingIpUpdated(fip, event.portId()); |
| 302 | }); |
| 303 | break; |
| 304 | case OPENSTACK_FLOATING_IP_CREATED: |
| 305 | log.debug("Floating IP {} is created", |
| 306 | event.floatingIp().getFloatingIpAddress()); |
| 307 | break; |
| 308 | case OPENSTACK_FLOATING_IP_UPDATED: |
| 309 | log.debug("Floating IP {} is updated", |
| 310 | event.floatingIp().getFloatingIpAddress()); |
| 311 | break; |
| 312 | case OPENSTACK_FLOATING_IP_REMOVED: |
| 313 | log.debug("Floating IP {} is removed", |
| 314 | event.floatingIp().getFloatingIpAddress()); |
| 315 | break; |
| 316 | case OPENSTACK_ROUTER_CREATED: |
| 317 | case OPENSTACK_ROUTER_UPDATED: |
| 318 | case OPENSTACK_ROUTER_REMOVED: |
| 319 | case OPENSTACK_ROUTER_INTERFACE_ADDED: |
| 320 | case OPENSTACK_ROUTER_INTERFACE_UPDATED: |
| 321 | case OPENSTACK_ROUTER_INTERFACE_REMOVED: |
| 322 | default: |
| 323 | // do nothing for the other events |
| 324 | break; |
| 325 | } |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | private class InternalNodeListener implements OpenstackNodeListener { |
| 330 | |
| 331 | @Override |
| 332 | public boolean isRelevant(OpenstackNodeEvent event) { |
| 333 | // do not allow to proceed without leadership |
| 334 | NodeId leader = leadershipService.getLeader(appId.name()); |
| 335 | if (!Objects.equals(localNodeId, leader)) { |
| 336 | return false; |
| 337 | } |
| 338 | return event.subject().type() == GATEWAY; |
| 339 | } |
| 340 | |
| 341 | @Override |
| 342 | public void event(OpenstackNodeEvent event) { |
| 343 | OpenstackNode osNode = event.subject(); |
| 344 | |
| 345 | switch (event.type()) { |
| 346 | case COMPLETE: |
| 347 | eventExecutor.execute(() -> { |
| 348 | log.info("GATEWAY node {} detected", osNode.hostname()); |
| 349 | osRouterService.floatingIps().stream() |
| 350 | .filter(fip -> !Strings.isNullOrEmpty(fip.getPortId())) |
| 351 | .forEach(fip -> { |
| 352 | floatingIpUpdated(fip, fip.getPortId()); |
| 353 | }); |
| 354 | }); |
| 355 | break; |
| 356 | case INIT: |
| 357 | case DEVICE_CREATED: |
| 358 | case INCOMPLETE: |
| 359 | default: |
| 360 | break; |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | } |