Daniel Park | 2884b23 | 2021-03-04 18:58:47 +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.Ip4Address; |
| 22 | import org.onlab.packet.IpAddress; |
| 23 | import org.onlab.packet.IpPrefix; |
| 24 | import org.onlab.packet.MacAddress; |
| 25 | import org.onlab.packet.TpPort; |
| 26 | import org.onosproject.cluster.ClusterService; |
| 27 | import org.onosproject.cluster.LeadershipService; |
| 28 | import org.onosproject.cluster.NodeId; |
| 29 | import org.onosproject.core.ApplicationId; |
| 30 | import org.onosproject.core.CoreService; |
| 31 | import org.onosproject.kubevirtnetworking.api.KubevirtFlowRuleService; |
| 32 | import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
| 33 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkEvent; |
| 34 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkListener; |
| 35 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService; |
| 36 | import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| 37 | import org.onosproject.kubevirtnetworking.api.KubevirtPortEvent; |
| 38 | import org.onosproject.kubevirtnetworking.api.KubevirtPortListener; |
| 39 | import org.onosproject.kubevirtnetworking.api.KubevirtPortService; |
| 40 | import org.onosproject.kubevirtnetworking.api.KubevirtRouter; |
| 41 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent; |
| 42 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterListener; |
| 43 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterService; |
| 44 | import org.onosproject.kubevirtnetworking.util.RulePopulatorUtil; |
| 45 | import org.onosproject.kubevirtnode.api.KubevirtNode; |
| 46 | import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| 47 | import org.onosproject.net.Device; |
| 48 | import org.onosproject.net.Port; |
| 49 | import org.onosproject.net.PortNumber; |
| 50 | import org.onosproject.net.device.DeviceAdminService; |
| 51 | import org.onosproject.net.driver.DriverService; |
| 52 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 53 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 54 | import org.onosproject.net.flow.TrafficSelector; |
| 55 | import org.onosproject.net.flow.TrafficTreatment; |
| 56 | import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| 57 | import org.osgi.service.component.annotations.Activate; |
| 58 | import org.osgi.service.component.annotations.Component; |
| 59 | import org.osgi.service.component.annotations.Deactivate; |
| 60 | import org.osgi.service.component.annotations.Reference; |
| 61 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 62 | import org.slf4j.Logger; |
| 63 | |
| 64 | import java.util.Objects; |
| 65 | import java.util.Set; |
| 66 | import java.util.concurrent.ExecutorService; |
| 67 | |
| 68 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 69 | import static org.onlab.util.Tools.groupedThreads; |
| 70 | import static org.onosproject.kubevirtnetworking.api.Constants.DEFAULT_GATEWAY_MAC; |
| 71 | import static org.onosproject.kubevirtnetworking.api.Constants.FLAT_TABLE; |
| 72 | import static org.onosproject.kubevirtnetworking.api.Constants.FORWARDING_TABLE; |
| 73 | import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
| 74 | import static org.onosproject.kubevirtnetworking.api.Constants.PRE_FLAT_TABLE; |
| 75 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE; |
| 76 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_STATEFUL_SNAT_RULE; |
| 77 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.gatewayNodeForSpecifiedRouter; |
| 78 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterSnatIpAddress; |
| 79 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getbrIntMacAddress; |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 80 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterForKubevirtPort; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 81 | import static org.onosproject.kubevirtnetworking.util.RulePopulatorUtil.CT_NAT_SRC_FLAG; |
| 82 | import static org.onosproject.net.AnnotationKeys.PORT_NAME; |
| 83 | import static org.slf4j.LoggerFactory.getLogger; |
| 84 | |
| 85 | /** |
| 86 | * Handles kubevirt routing snat. |
| 87 | */ |
| 88 | |
| 89 | @Component(immediate = true) |
| 90 | public class KubevirtRoutingSnatHandler { |
| 91 | protected final Logger log = getLogger(getClass()); |
| 92 | private static final int DEFAULT_TTL = 0xff; |
| 93 | |
| 94 | private static final int TP_PORT_MINIMUM_NUM = 1025; |
| 95 | private static final int TP_PORT_MAXIMUM_NUM = 65535; |
| 96 | |
| 97 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 98 | protected CoreService coreService; |
| 99 | |
| 100 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 101 | protected ClusterService clusterService; |
| 102 | |
| 103 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 104 | protected LeadershipService leadershipService; |
| 105 | |
| 106 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 107 | protected DeviceAdminService deviceService; |
| 108 | |
| 109 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 110 | protected KubevirtPortService kubevirtPortService; |
| 111 | |
| 112 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 113 | protected KubevirtNodeService kubevirtNodeService; |
| 114 | |
| 115 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 116 | protected KubevirtNetworkService kubevirtNetworkService; |
| 117 | |
| 118 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 119 | protected KubevirtFlowRuleService flowService; |
| 120 | |
| 121 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 122 | protected DriverService driverService; |
| 123 | |
| 124 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 125 | protected KubevirtRouterService kubevirtRouterService; |
| 126 | |
| 127 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 128 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 129 | |
| 130 | private final InternalKubevirtPortListener kubevirtPortListener = |
| 131 | new InternalKubevirtPortListener(); |
| 132 | |
| 133 | private final InternalRouterEventListener kubevirtRouterlistener = |
| 134 | new InternalRouterEventListener(); |
| 135 | |
| 136 | private final InternalNetworkEventListener kubevirtNetworkEventListener = |
| 137 | new InternalNetworkEventListener(); |
| 138 | |
| 139 | private ApplicationId appId; |
| 140 | private NodeId localNodeId; |
| 141 | |
| 142 | @Activate |
| 143 | protected void activate() { |
| 144 | appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| 145 | localNodeId = clusterService.getLocalNode().id(); |
| 146 | leadershipService.runForLeadership(appId.name()); |
| 147 | |
| 148 | kubevirtPortService.addListener(kubevirtPortListener); |
| 149 | kubevirtRouterService.addListener(kubevirtRouterlistener); |
| 150 | kubevirtNetworkService.addListener(kubevirtNetworkEventListener); |
| 151 | |
| 152 | log.info("Started"); |
| 153 | } |
| 154 | |
| 155 | @Deactivate |
| 156 | protected void deactivate() { |
| 157 | leadershipService.withdraw(appId.name()); |
| 158 | kubevirtPortService.removeListener(kubevirtPortListener); |
| 159 | kubevirtRouterService.removeListener(kubevirtRouterlistener); |
| 160 | kubevirtNetworkService.removeListener(kubevirtNetworkEventListener); |
| 161 | |
| 162 | eventExecutor.shutdown(); |
| 163 | |
| 164 | log.info("Stopped"); |
| 165 | } |
| 166 | |
| 167 | private void initGatewayNodeSnatForRouter(KubevirtRouter router, boolean install) { |
| 168 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 169 | |
| 170 | if (electedGw == null) { |
| 171 | log.warn("Fail to initialize gateway node snat for router {} " + |
| 172 | "there's no gateway assigned to it", router.name()); |
| 173 | return; |
| 174 | } |
| 175 | |
| 176 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 177 | |
| 178 | if (routerSnatIp == null) { |
| 179 | log.warn("Fail to initialize gateway node snat for router {} " + |
| 180 | "there's no gateway snat ip assigned to it", router.name()); |
| 181 | return; |
| 182 | } |
| 183 | |
| 184 | setArpResponseToPeerRouter(electedGw, Ip4Address.valueOf(routerSnatIp), install); |
| 185 | setStatefulSnatUpstreamRules(electedGw, router, Ip4Address.valueOf(routerSnatIp), install); |
| 186 | setStatefulSnatDownstreamRuleForRouter(router, electedGw, Ip4Address.valueOf(routerSnatIp), install); |
| 187 | } |
| 188 | |
| 189 | private void setArpResponseToPeerRouter(KubevirtNode gatewayNode, Ip4Address ip4Address, boolean install) { |
| 190 | |
| 191 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 192 | .matchInPort(externalPatchPortNum(gatewayNode)) |
| 193 | .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| 194 | .matchArpOp(ARP.OP_REQUEST) |
| 195 | .matchArpTpa(ip4Address) |
| 196 | .build(); |
| 197 | |
| 198 | Device device = deviceService.getDevice(gatewayNode.intgBridge()); |
| 199 | |
| 200 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 201 | .extension(RulePopulatorUtil.buildMoveEthSrcToDstExtension(device), device.id()) |
| 202 | .extension(RulePopulatorUtil.buildMoveArpShaToThaExtension(device), device.id()) |
| 203 | .extension(RulePopulatorUtil.buildMoveArpSpaToTpaExtension(device), device.id()) |
| 204 | .setArpOp(ARP.OP_REPLY) |
| 205 | .setEthSrc(DEFAULT_GATEWAY_MAC) |
| 206 | .setArpSha(DEFAULT_GATEWAY_MAC) |
| 207 | .setArpSpa(ip4Address) |
| 208 | .setOutput(PortNumber.IN_PORT) |
| 209 | .build(); |
| 210 | |
| 211 | flowService.setRule( |
| 212 | appId, |
| 213 | gatewayNode.intgBridge(), |
| 214 | selector, |
| 215 | treatment, |
| 216 | PRIORITY_ARP_GATEWAY_RULE, |
| 217 | PRE_FLAT_TABLE, |
| 218 | install); |
| 219 | } |
| 220 | |
| 221 | private void setStatefulSnatUpstreamRules(KubevirtNode gatewayNode, KubevirtRouter router, |
| 222 | Ip4Address ip4Address, boolean install) { |
| 223 | |
| 224 | MacAddress brIntMacAddress = getbrIntMacAddress(deviceService, gatewayNode.intgBridge()); |
| 225 | |
| 226 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 227 | .matchEthType(Ethernet.TYPE_IPV4) |
| 228 | .matchEthDst(brIntMacAddress) |
| 229 | .build(); |
| 230 | |
| 231 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 232 | |
| 233 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 234 | .niciraConnTrackTreatmentBuilder(driverService, gatewayNode.intgBridge()) |
| 235 | .commit(true) |
| 236 | .natFlag(CT_NAT_SRC_FLAG) |
| 237 | .natAction(true) |
| 238 | .natIp(ip4Address) |
| 239 | .natPortMin(TpPort.tpPort(TP_PORT_MINIMUM_NUM)) |
| 240 | .natPortMax(TpPort.tpPort(TP_PORT_MAXIMUM_NUM)) |
| 241 | .build(); |
| 242 | |
| 243 | tBuilder.extension(natTreatment, gatewayNode.intgBridge()) |
| 244 | .setEthDst(router.peerRouter().macAddress()) |
| 245 | .setEthSrc(DEFAULT_GATEWAY_MAC) |
| 246 | .setOutput(externalPatchPortNum(gatewayNode)); |
| 247 | |
| 248 | flowService.setRule( |
| 249 | appId, |
| 250 | gatewayNode.intgBridge(), |
| 251 | selector, |
| 252 | tBuilder.build(), |
| 253 | PRIORITY_STATEFUL_SNAT_RULE, |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 254 | FLAT_TABLE, |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 255 | install); |
| 256 | } |
| 257 | |
| 258 | private void setStatefulSnatDownStreamRuleForNetwork(KubevirtNode gatewayNode, |
| 259 | KubevirtRouter router, |
| 260 | KubevirtNetwork network, |
| 261 | boolean install) { |
| 262 | kubevirtPortService.ports(network.networkId()).forEach(kubevirtPort -> { |
| 263 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 264 | if (routerSnatIp == null) { |
| 265 | return; |
| 266 | } |
| 267 | setStatefulSnatDownStreamRuleForKubevirtPort(gatewayNode, IpAddress.valueOf(routerSnatIp), |
| 268 | kubevirtPort, install); |
| 269 | }); |
| 270 | } |
| 271 | |
| 272 | private void setStatefulSnatDownStreamRuleForKubevirtPort(KubevirtNode gatewayNode, |
| 273 | IpAddress gatewaySnatIp, |
| 274 | KubevirtPort kubevirtPort, |
| 275 | boolean install) { |
| 276 | MacAddress brIntMacAddress = getbrIntMacAddress(deviceService, gatewayNode.intgBridge()); |
| 277 | |
| 278 | if (brIntMacAddress == null) { |
| 279 | log.error("Failed to set stateful snat downstream rule because " + |
| 280 | "there's no br-int port for device {}", gatewayNode.intgBridge()); |
| 281 | return; |
| 282 | } |
| 283 | |
| 284 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 285 | .matchEthType(Ethernet.TYPE_IPV4) |
| 286 | .matchIPDst(IpPrefix.valueOf(kubevirtPort.ipAddress(), 32)); |
| 287 | |
| 288 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 289 | .setEthDst(kubevirtPort.macAddress()) |
| 290 | .transition(FORWARDING_TABLE) |
| 291 | .build(); |
| 292 | |
| 293 | flowService.setRule( |
| 294 | appId, |
| 295 | gatewayNode.intgBridge(), |
| 296 | sBuilder.build(), |
| 297 | treatment, |
| 298 | PRIORITY_STATEFUL_SNAT_RULE, |
| 299 | FLAT_TABLE, |
| 300 | install); |
| 301 | } |
| 302 | |
| 303 | private void setStatefulSnatDownstreamRuleForRouter(KubevirtRouter router, |
| 304 | KubevirtNode gatewayNode, |
| 305 | IpAddress gatewaySnatIp, |
| 306 | boolean install) { |
| 307 | |
| 308 | MacAddress brIntMacAddress = getbrIntMacAddress(deviceService, gatewayNode.intgBridge()); |
| 309 | |
| 310 | if (brIntMacAddress == null) { |
| 311 | log.error("Failed to set stateful snat downstream rule because " + |
| 312 | "there's no br-int port for device {}", gatewayNode.intgBridge()); |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 317 | .matchEthType(Ethernet.TYPE_IPV4) |
| 318 | .matchIPDst(IpPrefix.valueOf(gatewaySnatIp, 32)); |
| 319 | |
| 320 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 321 | .niciraConnTrackTreatmentBuilder(driverService, gatewayNode.intgBridge()) |
| 322 | .commit(false) |
| 323 | .natAction(true) |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 324 | .table((short) FLAT_TABLE) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 325 | .build(); |
| 326 | |
| 327 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 328 | .setEthSrc(brIntMacAddress) |
| 329 | .extension(natTreatment, gatewayNode.intgBridge()) |
| 330 | .build(); |
| 331 | |
| 332 | flowService.setRule( |
| 333 | appId, |
| 334 | gatewayNode.intgBridge(), |
| 335 | sBuilder.build(), |
| 336 | treatment, |
| 337 | PRIORITY_STATEFUL_SNAT_RULE, |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 338 | FLAT_TABLE, |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 339 | install); |
| 340 | |
| 341 | router.internal().forEach(networkName -> { |
| 342 | KubevirtNetwork network = kubevirtNetworkService.network(networkName); |
| 343 | |
| 344 | if (network != null) { |
| 345 | setStatefulSnatDownStreamRuleForNetwork(gatewayNode, router, network, install); |
| 346 | } |
| 347 | }); |
| 348 | } |
| 349 | |
| 350 | private PortNumber externalPatchPortNum(KubevirtNode gatewayNode) { |
| 351 | Port port = deviceService.getPorts(gatewayNode.intgBridge()).stream() |
| 352 | .filter(p -> p.isEnabled() && |
| 353 | Objects.equals(p.annotations().value(PORT_NAME), "int-to-gateway")) |
| 354 | .findAny().orElse(null); |
| 355 | |
| 356 | return port != null ? port.number() : null; |
| 357 | } |
| 358 | |
| 359 | private class InternalRouterEventListener implements KubevirtRouterListener { |
| 360 | private boolean isRelevantHelper() { |
| 361 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 362 | } |
| 363 | |
| 364 | @Override |
| 365 | public void event(KubevirtRouterEvent event) { |
| 366 | switch (event.type()) { |
| 367 | case KUBEVIRT_ROUTER_CREATED: |
| 368 | eventExecutor.execute(() -> processRouterCreation(event.subject())); |
| 369 | break; |
| 370 | case KUBEVIRT_ROUTER_REMOVED: |
| 371 | eventExecutor.execute(() -> processRouterDeletion(event.subject())); |
| 372 | break; |
| 373 | case KUBEVIRT_ROUTER_UPDATED: |
| 374 | eventExecutor.execute(() -> processRouterUpdate(event.subject())); |
| 375 | break; |
| 376 | case KUBEVIRT_ROUTER_INTERNAL_NETWORKS_ATTACHED: |
| 377 | eventExecutor.execute(() -> processRouterInternalNetworksAttached(event.subject(), |
| 378 | event.internal())); |
| 379 | break; |
| 380 | case KUBEVIRT_ROUTER_INTERNAL_NETWORKS_DETACHED: |
| 381 | eventExecutor.execute(() -> processRouterInternalNetworksDetached(event.subject(), |
| 382 | event.internal())); |
| 383 | break; |
| 384 | default: |
| 385 | //do nothing |
| 386 | break; |
| 387 | } |
| 388 | } |
| 389 | private void processRouterInternalNetworksAttached(KubevirtRouter router, |
| 390 | Set<String> attachedInternalNetworks) { |
| 391 | if (!isRelevantHelper()) { |
| 392 | return; |
| 393 | } |
| 394 | |
| 395 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 396 | if (gwNode == null) { |
| 397 | return; |
| 398 | } |
| 399 | |
| 400 | attachedInternalNetworks.forEach(networkId -> { |
| 401 | kubevirtPortService.ports(networkId).forEach(kubevirtPort -> { |
| 402 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 403 | if (routerSnatIp == null) { |
| 404 | return; |
| 405 | } |
| 406 | setStatefulSnatDownStreamRuleForKubevirtPort(gwNode, IpAddress.valueOf(routerSnatIp), |
| 407 | kubevirtPort, true); |
| 408 | }); |
| 409 | }); |
| 410 | } |
| 411 | |
| 412 | private void processRouterInternalNetworksDetached(KubevirtRouter router, |
| 413 | Set<String> detachedInternalNetworks) { |
| 414 | if (!isRelevantHelper()) { |
| 415 | return; |
| 416 | } |
| 417 | |
| 418 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 419 | if (gwNode == null) { |
| 420 | return; |
| 421 | } |
| 422 | |
| 423 | detachedInternalNetworks.forEach(networkId -> { |
| 424 | kubevirtPortService.ports(networkId).forEach(kubevirtPort -> { |
| 425 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 426 | if (routerSnatIp == null) { |
| 427 | log.info("snatIp is null"); |
| 428 | return; |
| 429 | } |
| 430 | setStatefulSnatDownStreamRuleForKubevirtPort(gwNode, IpAddress.valueOf(routerSnatIp), |
| 431 | kubevirtPort, false); |
| 432 | }); |
| 433 | }); |
| 434 | } |
| 435 | private void processRouterCreation(KubevirtRouter router) { |
| 436 | if (!isRelevantHelper()) { |
| 437 | return; |
| 438 | } |
| 439 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
| 440 | initGatewayNodeSnatForRouter(router, true); |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | private void processRouterDeletion(KubevirtRouter router) { |
| 445 | if (!isRelevantHelper()) { |
| 446 | return; |
| 447 | } |
| 448 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
| 449 | initGatewayNodeSnatForRouter(router, false); |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | private void processRouterUpdate(KubevirtRouter router) { |
| 454 | if (!isRelevantHelper()) { |
| 455 | return; |
| 456 | } |
| 457 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
| 458 | initGatewayNodeSnatForRouter(router, true); |
| 459 | } |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | private class InternalNetworkEventListener implements KubevirtNetworkListener { |
| 464 | |
| 465 | private boolean isRelevantHelper() { |
| 466 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 467 | } |
| 468 | |
| 469 | @Override |
| 470 | public void event(KubevirtNetworkEvent event) { |
| 471 | switch (event.type()) { |
| 472 | case KUBEVIRT_NETWORK_CREATED: |
| 473 | eventExecutor.execute(() -> processNetworkCreation(event.subject())); |
| 474 | break; |
| 475 | case KUBEVIRT_NETWORK_REMOVED: |
| 476 | eventExecutor.execute(() -> processNetworkRemoval(event.subject())); |
| 477 | break; |
| 478 | case KUBEVIRT_NETWORK_UPDATED: |
| 479 | default: |
| 480 | // do nothing |
| 481 | break; |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | private void processNetworkCreation(KubevirtNetwork network) { |
| 486 | if (!isRelevantHelper()) { |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | switch (network.type()) { |
| 491 | case VXLAN: |
| 492 | case GRE: |
| 493 | case GENEVE: |
| 494 | break; |
| 495 | case FLAT: |
| 496 | case VLAN: |
| 497 | break; |
| 498 | default: |
| 499 | // do nothing |
| 500 | break; |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | private void processNetworkRemoval(KubevirtNetwork network) { |
| 505 | if (!isRelevantHelper()) { |
| 506 | return; |
| 507 | } |
| 508 | |
| 509 | switch (network.type()) { |
| 510 | case VXLAN: |
| 511 | case GRE: |
| 512 | case GENEVE: |
| 513 | break; |
| 514 | case FLAT: |
| 515 | case VLAN: |
| 516 | break; |
| 517 | default: |
| 518 | // do nothing |
| 519 | break; |
| 520 | } |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | private class InternalKubevirtPortListener implements KubevirtPortListener { |
| 525 | |
| 526 | private boolean isRelevantHelper() { |
| 527 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 528 | } |
| 529 | |
| 530 | @Override |
| 531 | public void event(KubevirtPortEvent event) { |
| 532 | switch (event.type()) { |
| 533 | case KUBEVIRT_PORT_CREATED: |
| 534 | eventExecutor.execute(() -> processPortCreation(event.subject())); |
| 535 | break; |
| 536 | case KUBEVIRT_PORT_UPDATED: |
| 537 | eventExecutor.execute(() -> processPortUpdate(event.subject())); |
| 538 | break; |
| 539 | case KUBEVIRT_PORT_REMOVED: |
| 540 | eventExecutor.execute(() -> processPortDeletion(event.subject())); |
| 541 | break; |
| 542 | default: |
| 543 | //do nothing |
| 544 | break; |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | private void processPortCreation(KubevirtPort kubevirtPort) { |
| 549 | if (!isRelevantHelper()) { |
| 550 | return; |
| 551 | } |
| 552 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 553 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 554 | if (router == null) { |
| 555 | return; |
| 556 | } |
| 557 | |
| 558 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 559 | |
| 560 | if (gwNode != null) { |
| 561 | IpAddress gatewaySnatIp = getRouterSnatIpAddress(kubevirtRouterService, kubevirtPort.networkId()); |
| 562 | if (gatewaySnatIp == null) { |
| 563 | return; |
| 564 | } |
| 565 | setStatefulSnatDownStreamRuleForKubevirtPort(gwNode, gatewaySnatIp, kubevirtPort, true); |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | private void processPortUpdate(KubevirtPort kubevirtPort) { |
| 570 | if (!isRelevantHelper()) { |
| 571 | return; |
| 572 | } |
| 573 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 574 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 575 | if (router == null) { |
| 576 | return; |
| 577 | } |
| 578 | |
| 579 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 580 | |
| 581 | if (gwNode != null) { |
| 582 | IpAddress gatewaySnatIp = getRouterSnatIpAddress(kubevirtRouterService, kubevirtPort.networkId()); |
| 583 | if (gatewaySnatIp == null) { |
| 584 | return; |
| 585 | } |
| 586 | setStatefulSnatDownStreamRuleForKubevirtPort(gwNode, gatewaySnatIp, kubevirtPort, true); |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | private void processPortDeletion(KubevirtPort kubevirtPort) { |
| 591 | if (!isRelevantHelper()) { |
| 592 | return; |
| 593 | } |
| 594 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 595 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 596 | if (router == null) { |
| 597 | return; |
| 598 | } |
| 599 | |
| 600 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 601 | |
| 602 | if (gwNode != null) { |
| 603 | IpAddress gatewaySnatIp = getRouterSnatIpAddress(kubevirtRouterService, kubevirtPort.networkId()); |
| 604 | if (gatewaySnatIp == null) { |
| 605 | return; |
| 606 | } |
| 607 | setStatefulSnatDownStreamRuleForKubevirtPort(gwNode, gatewaySnatIp, kubevirtPort, false); |
| 608 | } |
| 609 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 610 | } |
| 611 | } |