Daniel Park | e7e3d6a | 2021-03-10 07:49:11 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2021-present Open Networking Foundation |
| 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.kubevirtnetworking.impl; |
| 17 | |
| 18 | import org.onlab.packet.ARP; |
| 19 | import org.onlab.packet.EthType; |
| 20 | import org.onlab.packet.Ethernet; |
| 21 | import org.onlab.packet.IpPrefix; |
| 22 | import org.onlab.packet.MacAddress; |
| 23 | import org.onosproject.cluster.ClusterService; |
| 24 | import org.onosproject.cluster.LeadershipService; |
| 25 | import org.onosproject.cluster.NodeId; |
| 26 | import org.onosproject.core.ApplicationId; |
| 27 | import org.onosproject.core.CoreService; |
| 28 | import org.onosproject.kubevirtnetworking.api.KubevirtFloatingIp; |
| 29 | import org.onosproject.kubevirtnetworking.api.KubevirtFlowRuleService; |
| 30 | import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
| 31 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService; |
| 32 | import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| 33 | import org.onosproject.kubevirtnetworking.api.KubevirtPortService; |
| 34 | import org.onosproject.kubevirtnetworking.api.KubevirtRouter; |
| 35 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent; |
| 36 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterListener; |
| 37 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterService; |
| 38 | import org.onosproject.kubevirtnetworking.util.RulePopulatorUtil; |
| 39 | import org.onosproject.kubevirtnode.api.KubevirtNode; |
| 40 | import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| 41 | import org.onosproject.net.Device; |
| 42 | import org.onosproject.net.PortNumber; |
| 43 | import org.onosproject.net.device.DeviceAdminService; |
| 44 | import org.onosproject.net.driver.DriverService; |
| 45 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 46 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 47 | import org.onosproject.net.flow.TrafficSelector; |
| 48 | import org.onosproject.net.flow.TrafficTreatment; |
| 49 | import org.osgi.service.component.annotations.Activate; |
| 50 | import org.osgi.service.component.annotations.Component; |
| 51 | import org.osgi.service.component.annotations.Deactivate; |
| 52 | import org.osgi.service.component.annotations.Reference; |
| 53 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 54 | import org.slf4j.Logger; |
| 55 | |
| 56 | import java.util.Objects; |
| 57 | import java.util.concurrent.ExecutorService; |
| 58 | |
| 59 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 60 | import static org.onlab.util.Tools.groupedThreads; |
| 61 | import static org.onosproject.kubevirtnetworking.api.Constants.FORWARDING_TABLE; |
| 62 | import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
| 63 | import static org.onosproject.kubevirtnetworking.api.Constants.PRE_FLAT_TABLE; |
| 64 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE; |
| 65 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_FLOATING_IP_RULE; |
| 66 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_FORWARDING_RULE; |
| 67 | import static org.onosproject.kubevirtnetworking.api.Constants.TUNNEL_DEFAULT_TABLE; |
| 68 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.GENEVE; |
| 69 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.GRE; |
| 70 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.VXLAN; |
| 71 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.externalPatchPortNum; |
| 72 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.gatewayNodeForSpecifiedRouter; |
| 73 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterMacAddress; |
| 74 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.tunnelPort; |
| 75 | import static org.onosproject.kubevirtnetworking.util.RulePopulatorUtil.buildExtension; |
| 76 | import static org.slf4j.LoggerFactory.getLogger; |
| 77 | |
| 78 | /** |
| 79 | * Handles kubevirt floating ip. |
| 80 | */ |
| 81 | @Component(immediate = true) |
| 82 | public class KubevirtFloatingIpHandler { |
| 83 | protected final Logger log = getLogger(getClass()); |
| 84 | |
| 85 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 86 | protected CoreService coreService; |
| 87 | |
| 88 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 89 | protected ClusterService clusterService; |
| 90 | |
| 91 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 92 | protected LeadershipService leadershipService; |
| 93 | |
| 94 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 95 | protected DeviceAdminService deviceService; |
| 96 | |
| 97 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 98 | protected KubevirtPortService kubevirtPortService; |
| 99 | |
| 100 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 101 | protected KubevirtNodeService kubevirtNodeService; |
| 102 | |
| 103 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 104 | protected KubevirtNetworkService kubevirtNetworkService; |
| 105 | |
| 106 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 107 | protected KubevirtFlowRuleService flowService; |
| 108 | |
| 109 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 110 | protected DriverService driverService; |
| 111 | |
| 112 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 113 | protected KubevirtRouterService kubevirtRouterService; |
| 114 | |
| 115 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 116 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 117 | |
| 118 | private ApplicationId appId; |
| 119 | private NodeId localNodeId; |
| 120 | |
| 121 | private final InternalRouterEventListener kubevirtRouterlistener = |
| 122 | new InternalRouterEventListener(); |
| 123 | |
| 124 | @Activate |
| 125 | protected void activate() { |
| 126 | appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| 127 | localNodeId = clusterService.getLocalNode().id(); |
| 128 | leadershipService.runForLeadership(appId.name()); |
| 129 | kubevirtRouterService.addListener(kubevirtRouterlistener); |
| 130 | |
| 131 | log.info("Started"); |
| 132 | } |
| 133 | |
| 134 | @Deactivate |
| 135 | protected void deactivate() { |
| 136 | leadershipService.withdraw(appId.name()); |
| 137 | kubevirtRouterService.removeListener(kubevirtRouterlistener); |
| 138 | |
| 139 | eventExecutor.shutdown(); |
| 140 | |
| 141 | log.info("Stopped"); |
| 142 | } |
| 143 | |
| 144 | private void setFloatingIpRules(KubevirtRouter router, |
| 145 | KubevirtFloatingIp floatingIp, |
| 146 | boolean install) { |
| 147 | |
| 148 | KubevirtPort kubevirtPort = getKubevirtPort(floatingIp); |
| 149 | if (kubevirtPort == null) { |
| 150 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 151 | "because there's no kubevirt port associated to it", floatingIp.floatingIp()); |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | KubevirtNetwork kubevirtNetwork = kubevirtNetworkService.network(kubevirtPort.networkId()); |
| 156 | if (kubevirtNetwork.type() == VXLAN || kubevirtNetwork.type() == GENEVE || kubevirtNetwork.type() == GRE) { |
| 157 | setFloatingIpDownstreamRulesToGatewayTunBridge(router, floatingIp, kubevirtNetwork, kubevirtPort, install); |
| 158 | } |
| 159 | |
| 160 | setFloatingIpArpResponseRules(router, floatingIp, kubevirtPort, install); |
| 161 | setFloatingIpUpstreamRules(router, floatingIp, kubevirtPort, install); |
| 162 | setFloatingIpDownstreamRules(router, floatingIp, kubevirtPort, install); |
| 163 | } |
| 164 | |
| 165 | private void setFloatingIpArpResponseRules(KubevirtRouter router, |
| 166 | KubevirtFloatingIp floatingIp, |
| 167 | KubevirtPort port, |
| 168 | boolean install) { |
| 169 | |
| 170 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 171 | |
| 172 | if (electedGw == null) { |
| 173 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 174 | "because there's no gateway assigned to it", floatingIp.floatingIp()); |
| 175 | return; |
| 176 | } |
| 177 | |
| 178 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 179 | .matchInPort(externalPatchPortNum(deviceService, electedGw)) |
| 180 | .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| 181 | .matchArpOp(ARP.OP_REQUEST) |
| 182 | .matchArpTpa(floatingIp.floatingIp().getIp4Address()) |
| 183 | .build(); |
| 184 | |
| 185 | Device device = deviceService.getDevice(electedGw.intgBridge()); |
| 186 | |
| 187 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 188 | .extension(RulePopulatorUtil.buildMoveEthSrcToDstExtension(device), device.id()) |
| 189 | .extension(RulePopulatorUtil.buildMoveArpShaToThaExtension(device), device.id()) |
| 190 | .extension(RulePopulatorUtil.buildMoveArpSpaToTpaExtension(device), device.id()) |
| 191 | .setArpOp(ARP.OP_REPLY) |
| 192 | .setEthSrc(port.macAddress()) |
| 193 | .setArpSha(port.macAddress()) |
| 194 | .setArpSpa(floatingIp.floatingIp().getIp4Address()) |
| 195 | .setOutput(PortNumber.IN_PORT) |
| 196 | .build(); |
| 197 | |
| 198 | flowService.setRule( |
| 199 | appId, |
| 200 | electedGw.intgBridge(), |
| 201 | selector, |
| 202 | treatment, |
| 203 | PRIORITY_ARP_GATEWAY_RULE, |
| 204 | PRE_FLAT_TABLE, |
| 205 | install); |
| 206 | } |
| 207 | private KubevirtPort getKubevirtPort(KubevirtFloatingIp floatingIp) { |
| 208 | |
| 209 | return kubevirtPortService.ports().stream() |
| 210 | .filter(port -> port.ipAddress().equals(floatingIp.fixedIp())) |
| 211 | .findAny().orElse(null); |
| 212 | } |
| 213 | |
| 214 | private void setFloatingIpUpstreamRules(KubevirtRouter router, |
| 215 | KubevirtFloatingIp floatingIp, |
| 216 | KubevirtPort port, |
| 217 | boolean install) { |
| 218 | |
| 219 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 220 | |
| 221 | if (electedGw == null) { |
| 222 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 223 | "because there's no gateway assigned to it", floatingIp.floatingIp()); |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | MacAddress peerMacAddress = router.peerRouter().macAddress(); |
| 228 | |
| 229 | if (peerMacAddress == null) { |
| 230 | log.warn("Failed to install floating Ip rules for floating ip {} and router {}" + |
| 231 | "because there's no peer router mac address", floatingIp.floatingIp(), |
| 232 | router.name()); |
| 233 | return; |
| 234 | } |
| 235 | |
| 236 | MacAddress routerMacAddress = getRouterMacAddress(router); |
| 237 | |
| 238 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 239 | .matchEthType(Ethernet.TYPE_IPV4) |
| 240 | .matchEthSrc(port.macAddress()) |
| 241 | .matchEthDst(routerMacAddress) |
| 242 | .matchIPSrc(IpPrefix.valueOf(floatingIp.fixedIp(), 32)) |
| 243 | .build(); |
| 244 | |
| 245 | |
| 246 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 247 | .setEthDst(peerMacAddress) |
| 248 | .setEthSrc(port.macAddress()) |
| 249 | .setIpSrc(floatingIp.floatingIp()) |
| 250 | .setOutput(externalPatchPortNum(deviceService, electedGw)) |
| 251 | .build(); |
| 252 | |
| 253 | flowService.setRule( |
| 254 | appId, |
| 255 | electedGw.intgBridge(), |
| 256 | selector, |
| 257 | treatment, |
| 258 | PRIORITY_FLOATING_IP_RULE, |
| 259 | PRE_FLAT_TABLE, |
| 260 | install); |
| 261 | } |
| 262 | |
| 263 | private void setFloatingIpDownstreamRules(KubevirtRouter router, |
| 264 | KubevirtFloatingIp floatingIp, |
| 265 | KubevirtPort port, |
| 266 | boolean install) { |
| 267 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 268 | |
| 269 | if (electedGw == null) { |
| 270 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 271 | "because there's no gateway assigned to it", floatingIp.floatingIp()); |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | MacAddress routerMacAddress = getRouterMacAddress(router); |
| 276 | |
| 277 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 278 | .matchEthType(Ethernet.TYPE_IPV4) |
| 279 | .matchEthDst(port.macAddress()) |
| 280 | .matchIPDst(IpPrefix.valueOf(floatingIp.floatingIp(), 32)) |
| 281 | .build(); |
| 282 | |
| 283 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 284 | .setEthSrc(routerMacAddress) |
| 285 | .setEthDst(port.macAddress()) |
| 286 | .setIpDst(floatingIp.fixedIp()) |
| 287 | .transition(FORWARDING_TABLE) |
| 288 | .build(); |
| 289 | |
| 290 | flowService.setRule( |
| 291 | appId, |
| 292 | electedGw.intgBridge(), |
| 293 | selector, |
| 294 | treatment, |
| 295 | PRIORITY_FLOATING_IP_RULE, |
| 296 | PRE_FLAT_TABLE, |
| 297 | install); |
| 298 | } |
| 299 | |
| 300 | |
| 301 | private void setFloatingIpDownstreamRulesToGatewayTunBridge(KubevirtRouter router, |
| 302 | KubevirtFloatingIp floatingIp, |
| 303 | KubevirtNetwork network, |
| 304 | KubevirtPort port, |
| 305 | boolean install) { |
| 306 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 307 | |
| 308 | if (electedGw == null) { |
| 309 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 310 | "because there's no gateway assigned to it", floatingIp.floatingIp()); |
| 311 | return; |
| 312 | } |
| 313 | |
| 314 | KubevirtNode workerNode = kubevirtNodeService.node(port.deviceId()); |
| 315 | if (workerNode == null) { |
| 316 | log.warn("Failed to install floating Ip rules for floating ip {} " + |
| 317 | "because fail to fine the worker node that the associated port is running on", |
| 318 | floatingIp.floatingIp()); |
| 319 | } |
| 320 | |
| 321 | PortNumber tunnelPortNumber = tunnelPort(electedGw, network); |
| 322 | if (tunnelPortNumber == null) { |
| 323 | return; |
| 324 | } |
| 325 | |
| 326 | |
| 327 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 328 | .matchEthType(Ethernet.TYPE_IPV4) |
| 329 | .matchIPDst(IpPrefix.valueOf(port.ipAddress(), 32)) |
| 330 | .matchEthDst(port.macAddress()); |
| 331 | |
| 332 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 333 | .setTunnelId(Long.parseLong(network.segmentId())) |
| 334 | .extension(buildExtension( |
| 335 | deviceService, |
| 336 | electedGw.tunBridge(), |
| 337 | workerNode.dataIp().getIp4Address()), |
| 338 | electedGw.tunBridge()) |
| 339 | .setOutput(tunnelPortNumber); |
| 340 | |
| 341 | flowService.setRule( |
| 342 | appId, |
| 343 | electedGw.tunBridge(), |
| 344 | sBuilder.build(), |
| 345 | tBuilder.build(), |
| 346 | PRIORITY_FORWARDING_RULE, |
| 347 | TUNNEL_DEFAULT_TABLE, |
| 348 | install); |
| 349 | } |
| 350 | |
| 351 | private class InternalRouterEventListener implements KubevirtRouterListener { |
| 352 | private boolean isRelevantHelper() { |
| 353 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 354 | } |
| 355 | |
| 356 | |
| 357 | @Override |
| 358 | public void event(KubevirtRouterEvent event) { |
| 359 | switch (event.type()) { |
| 360 | case KUBEVIRT_ROUTER_CREATED: |
| 361 | eventExecutor.execute(() -> processRouterCreation(event.subject())); |
| 362 | break; |
| 363 | case KUBEVIRT_ROUTER_UPDATED: |
| 364 | eventExecutor.execute(() -> processRouterUpdate(event.subject())); |
| 365 | break; |
| 366 | case KUBEVIRT_ROUTER_REMOVED: |
| 367 | eventExecutor.execute(() -> processRouterDeletion(event.subject())); |
| 368 | break; |
| 369 | case KUBEVIRT_FLOATING_IP_ASSOCIATED: |
| 370 | eventExecutor.execute(() -> processFloatingIpAssociation(event.subject(), |
| 371 | event.floatingIp())); |
| 372 | break; |
| 373 | case KUBEVIRT_FLOATING_IP_DISASSOCIATED: |
| 374 | eventExecutor.execute(() -> processFloatingIpDisassociation(event.subject(), |
| 375 | event.floatingIp())); |
| 376 | break; |
| 377 | |
| 378 | default: |
| 379 | //do nothing |
| 380 | break; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | private void processRouterCreation(KubevirtRouter router) { |
| 385 | if (!isRelevantHelper()) { |
| 386 | return; |
| 387 | } |
| 388 | kubevirtRouterService.floatingIpsByRouter(router.name()) |
| 389 | .stream() |
| 390 | .filter(fip -> fip.fixedIp() != null) |
| 391 | .forEach(fip -> { |
| 392 | processFloatingIpAssociation(router, fip); |
| 393 | }); |
| 394 | } |
| 395 | |
| 396 | private void processRouterDeletion(KubevirtRouter router) { |
| 397 | if (!isRelevantHelper()) { |
| 398 | return; |
| 399 | } |
| 400 | kubevirtRouterService.floatingIpsByRouter(router.name()) |
| 401 | .stream() |
| 402 | .filter(fip -> fip.fixedIp() != null) |
| 403 | .forEach(fip -> { |
| 404 | processFloatingIpDisassociation(router, fip); |
| 405 | }); |
| 406 | } |
| 407 | |
| 408 | private void processRouterUpdate(KubevirtRouter router) { |
| 409 | if (!isRelevantHelper()) { |
| 410 | return; |
| 411 | } |
| 412 | kubevirtRouterService.floatingIpsByRouter(router.name()) |
| 413 | .stream() |
| 414 | .filter(fip -> fip.fixedIp() != null) |
| 415 | .forEach(fip -> { |
| 416 | processFloatingIpAssociation(router, fip); |
| 417 | }); |
| 418 | } |
| 419 | |
| 420 | private void processFloatingIpAssociation(KubevirtRouter router, KubevirtFloatingIp floatingIp) { |
| 421 | if (!isRelevantHelper()) { |
| 422 | return; |
| 423 | } |
| 424 | setFloatingIpRules(router, floatingIp, true); |
| 425 | } |
| 426 | |
| 427 | private void processFloatingIpDisassociation(KubevirtRouter router, KubevirtFloatingIp floatingIp) { |
| 428 | if (!isRelevantHelper()) { |
| 429 | return; |
| 430 | } |
| 431 | setFloatingIpRules(router, floatingIp, false); |
| 432 | } |
| 433 | } |
| 434 | } |