Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019-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.k8snetworking.impl; |
| 17 | |
| 18 | import org.onlab.packet.ARP; |
| 19 | import org.onlab.packet.Ethernet; |
| 20 | import org.onlab.packet.Ip4Address; |
| 21 | import org.onlab.packet.IpPrefix; |
Jian Li | c2242bd | 2020-09-03 13:12:14 +0900 | [diff] [blame] | 22 | import org.onlab.packet.MacAddress; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 23 | import org.onlab.packet.TpPort; |
| 24 | import org.onosproject.cluster.ClusterService; |
| 25 | import org.onosproject.cluster.LeadershipService; |
| 26 | import org.onosproject.cluster.NodeId; |
| 27 | import org.onosproject.core.ApplicationId; |
| 28 | import org.onosproject.core.CoreService; |
| 29 | import org.onosproject.k8snetworking.api.K8sFlowRuleService; |
| 30 | import org.onosproject.k8snetworking.api.K8sNetwork; |
| 31 | import org.onosproject.k8snetworking.api.K8sNetworkEvent; |
| 32 | import org.onosproject.k8snetworking.api.K8sNetworkListener; |
| 33 | import org.onosproject.k8snetworking.api.K8sNetworkService; |
| 34 | import org.onosproject.k8snetworking.api.K8sPort; |
| 35 | import org.onosproject.k8snetworking.util.RulePopulatorUtil; |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 36 | import org.onosproject.k8snode.api.K8sHost; |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 37 | import org.onosproject.k8snode.api.K8sHostService; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 38 | import org.onosproject.k8snode.api.K8sNode; |
| 39 | import org.onosproject.k8snode.api.K8sNodeEvent; |
| 40 | import org.onosproject.k8snode.api.K8sNodeListener; |
| 41 | import org.onosproject.k8snode.api.K8sNodeService; |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 42 | import org.onosproject.k8snode.api.K8sRouterBridge; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 43 | import org.onosproject.mastership.MastershipService; |
| 44 | import org.onosproject.net.Device; |
| 45 | import org.onosproject.net.DeviceId; |
| 46 | import org.onosproject.net.PortNumber; |
| 47 | import org.onosproject.net.device.DeviceService; |
| 48 | import org.onosproject.net.driver.DriverService; |
| 49 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 50 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 51 | import org.onosproject.net.flow.TrafficSelector; |
| 52 | import org.onosproject.net.flow.TrafficTreatment; |
| 53 | import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| 54 | import org.osgi.service.component.annotations.Activate; |
| 55 | import org.osgi.service.component.annotations.Component; |
| 56 | import org.osgi.service.component.annotations.Deactivate; |
| 57 | import org.osgi.service.component.annotations.Reference; |
| 58 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 59 | import org.slf4j.Logger; |
| 60 | |
| 61 | import java.util.Objects; |
| 62 | import java.util.concurrent.ExecutorService; |
| 63 | |
| 64 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 65 | import static org.onlab.util.Tools.groupedThreads; |
| 66 | import static org.onosproject.k8snetworking.api.Constants.DEFAULT_GATEWAY_MAC; |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 67 | import static org.onosproject.k8snetworking.api.Constants.EXT_ENTRY_TABLE; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 68 | import static org.onosproject.k8snetworking.api.Constants.K8S_NETWORKING_APP_ID; |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 69 | import static org.onosproject.k8snetworking.api.Constants.POD_RESOLUTION_TABLE; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 70 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_EXTERNAL_ROUTING_RULE; |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 71 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_ROUTER_RULE; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 72 | import static org.onosproject.k8snetworking.api.Constants.PRIORITY_STATEFUL_SNAT_RULE; |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 73 | import static org.onosproject.k8snetworking.api.Constants.ROUTER_ENTRY_TABLE; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 74 | import static org.onosproject.k8snetworking.api.Constants.ROUTING_TABLE; |
| 75 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.CT_NAT_SRC_FLAG; |
| 76 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveArpShaToThaExtension; |
| 77 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveArpSpaToTpaExtension; |
| 78 | import static org.onosproject.k8snetworking.util.RulePopulatorUtil.buildMoveEthSrcToDstExtension; |
Jian Li | c2242bd | 2020-09-03 13:12:14 +0900 | [diff] [blame] | 79 | import static org.onosproject.k8snode.api.Constants.DEFAULT_EXTERNAL_GATEWAY_MAC; |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 80 | import static org.onosproject.k8snode.api.K8sApiConfig.Mode.PASSTHROUGH; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 81 | import static org.slf4j.LoggerFactory.getLogger; |
| 82 | |
| 83 | /** |
| 84 | * Provides POD's internal to external connectivity using source NAT (SNAT). |
| 85 | */ |
| 86 | @Component(immediate = true) |
| 87 | public class K8sRoutingSnatHandler { |
| 88 | |
| 89 | private final Logger log = getLogger(getClass()); |
| 90 | |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 91 | private static final int HOST_PREFIX = 32; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 92 | |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 93 | // we try to avoid port number overlapping with node port (30000 ~ 32767) |
| 94 | // in case the user has customized node port range, the following static |
| 95 | // value should be changed accordingly |
| 96 | private static final int TP_PORT_MINIMUM_NUM = 32768; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 97 | private static final int TP_PORT_MAXIMUM_NUM = 65535; |
| 98 | |
| 99 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 100 | protected CoreService coreService; |
| 101 | |
| 102 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 103 | protected DeviceService deviceService; |
| 104 | |
| 105 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 106 | protected DriverService driverService; |
| 107 | |
| 108 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 109 | protected LeadershipService leadershipService; |
| 110 | |
| 111 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 112 | protected MastershipService mastershipService; |
| 113 | |
| 114 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 115 | protected ClusterService clusterService; |
| 116 | |
| 117 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 118 | protected K8sNetworkService k8sNetworkService; |
| 119 | |
| 120 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 121 | protected K8sNodeService k8sNodeService; |
| 122 | |
| 123 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 124 | protected K8sHostService k8sHostService; |
| 125 | |
| 126 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 127 | protected K8sFlowRuleService k8sFlowRuleService; |
| 128 | |
| 129 | private final InternalK8sNetworkListener k8sNetworkListener = |
| 130 | new InternalK8sNetworkListener(); |
| 131 | private final InternalK8sNodeListener k8sNodeListener = |
| 132 | new InternalK8sNodeListener(); |
| 133 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 134 | groupedThreads(this.getClass().getSimpleName(), "event-handler", log)); |
| 135 | |
| 136 | private ApplicationId appId; |
| 137 | private NodeId localNodeId; |
| 138 | |
| 139 | @Activate |
| 140 | protected void activate() { |
| 141 | appId = coreService.registerApplication(K8S_NETWORKING_APP_ID); |
| 142 | |
| 143 | localNodeId = clusterService.getLocalNode().id(); |
| 144 | leadershipService.runForLeadership(appId.name()); |
| 145 | k8sNetworkService.addListener(k8sNetworkListener); |
| 146 | k8sNodeService.addListener(k8sNodeListener); |
| 147 | |
| 148 | log.info("Started"); |
| 149 | } |
| 150 | |
| 151 | @Deactivate |
| 152 | protected void deactivate() { |
| 153 | k8sNodeService.removeListener(k8sNodeListener); |
| 154 | k8sNetworkService.removeListener(k8sNetworkListener); |
| 155 | leadershipService.withdraw(appId.name()); |
| 156 | eventExecutor.shutdown(); |
| 157 | |
| 158 | log.info("Stopped"); |
| 159 | } |
| 160 | |
| 161 | private void setContainerToExtRule(K8sNode k8sNode, boolean install) { |
| 162 | |
| 163 | K8sNetwork net = k8sNetworkService.network(k8sNode.hostname()); |
| 164 | |
| 165 | if (net == null) { |
| 166 | return; |
| 167 | } |
| 168 | |
| 169 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 170 | .matchEthType(Ethernet.TYPE_IPV4) |
| 171 | .matchTunnelId(Long.valueOf(net.segmentId())) |
| 172 | .matchEthDst(DEFAULT_GATEWAY_MAC); |
| 173 | |
| 174 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 175 | .setOutput(k8sNode.intgToExtPatchPortNum()); |
| 176 | |
| 177 | k8sFlowRuleService.setRule( |
| 178 | appId, |
| 179 | k8sNode.intgBridge(), |
| 180 | sBuilder.build(), |
| 181 | tBuilder.build(), |
| 182 | PRIORITY_EXTERNAL_ROUTING_RULE, |
| 183 | ROUTING_TABLE, |
| 184 | install); |
| 185 | } |
| 186 | |
| 187 | private void setExtToContainerRule(K8sNode k8sNode, |
| 188 | K8sPort k8sPort, boolean install) { |
| 189 | |
| 190 | K8sNetwork net = k8sNetworkService.network(k8sPort.networkId()); |
| 191 | |
| 192 | if (net == null) { |
| 193 | return; |
| 194 | } |
| 195 | |
| 196 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 197 | .matchEthType(Ethernet.TYPE_IPV4) |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 198 | .matchIPDst(IpPrefix.valueOf(k8sPort.ipAddress(), HOST_PREFIX)); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 199 | |
| 200 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 201 | .setOutput(k8sNode.extToIntgPatchPortNum()); |
| 202 | |
| 203 | k8sFlowRuleService.setRule( |
| 204 | appId, |
| 205 | k8sNode.extBridge(), |
| 206 | sBuilder.build(), |
| 207 | tBuilder.build(), |
| 208 | PRIORITY_STATEFUL_SNAT_RULE, |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 209 | POD_RESOLUTION_TABLE, |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 210 | install); |
| 211 | } |
| 212 | |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 213 | private void setExtSnatDownstreamRule(K8sNode k8sNode, |
| 214 | boolean install) { |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 215 | DeviceId deviceId = k8sNode.extBridge(); |
| 216 | |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 217 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 218 | .matchEthType(Ethernet.TYPE_IPV4) |
| 219 | .matchIPDst(IpPrefix.valueOf(k8sNode.extBridgeIp(), HOST_PREFIX)); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 220 | |
| 221 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 222 | .niciraConnTrackTreatmentBuilder(driverService, deviceId) |
| 223 | .commit(false) |
| 224 | .natAction(true) |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 225 | .table((short) POD_RESOLUTION_TABLE) |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 226 | .build(); |
| 227 | |
| 228 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 229 | .setEthSrc(DEFAULT_GATEWAY_MAC) |
| 230 | .extension(natTreatment, deviceId) |
| 231 | .build(); |
| 232 | |
| 233 | k8sFlowRuleService.setRule( |
| 234 | appId, |
| 235 | deviceId, |
| 236 | sBuilder.build(), |
| 237 | treatment, |
| 238 | PRIORITY_STATEFUL_SNAT_RULE, |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 239 | EXT_ENTRY_TABLE, |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 240 | install); |
| 241 | } |
| 242 | |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 243 | private void setExtSnatUpstreamRule(K8sNode k8sNode, |
| 244 | boolean install) { |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 245 | |
| 246 | K8sNetwork net = k8sNetworkService.network(k8sNode.hostname()); |
| 247 | |
| 248 | if (net == null) { |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 253 | .matchEthType(Ethernet.TYPE_IPV4) |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 254 | .matchInPort(k8sNode.extToIntgPatchPortNum()) |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 255 | .matchEthDst(DEFAULT_GATEWAY_MAC) |
| 256 | .build(); |
| 257 | |
| 258 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 259 | |
| 260 | if (install) { |
| 261 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 262 | .niciraConnTrackTreatmentBuilder(driverService, k8sNode.extBridge()) |
| 263 | .commit(true) |
| 264 | .natFlag(CT_NAT_SRC_FLAG) |
| 265 | .natAction(true) |
| 266 | .natIp(k8sNode.extBridgeIp()) |
| 267 | .natPortMin(TpPort.tpPort(TP_PORT_MINIMUM_NUM)) |
| 268 | .natPortMax(TpPort.tpPort(TP_PORT_MAXIMUM_NUM)) |
| 269 | .build(); |
| 270 | |
| 271 | tBuilder.extension(natTreatment, k8sNode.extBridge()) |
| 272 | .setEthSrc(k8sNode.extBridgeMac()) |
Jian Li | c2242bd | 2020-09-03 13:12:14 +0900 | [diff] [blame] | 273 | .setEthDst(k8sNode.extGatewayMac()); |
| 274 | |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 275 | if (k8sNode.mode() == PASSTHROUGH) { |
| 276 | tBuilder.setOutput(k8sNode.extToRouterPortNum()); |
Jian Li | c2242bd | 2020-09-03 13:12:14 +0900 | [diff] [blame] | 277 | } else { |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 278 | if (MacAddress.valueOf(DEFAULT_EXTERNAL_GATEWAY_MAC).equals( |
| 279 | k8sNode.extGatewayMac())) { |
| 280 | tBuilder.setOutput(k8sNode.extIntfPortNum()); |
| 281 | } else { |
| 282 | tBuilder.setOutput(k8sNode.extBridgePortNum()); |
| 283 | } |
Jian Li | c2242bd | 2020-09-03 13:12:14 +0900 | [diff] [blame] | 284 | } |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | k8sFlowRuleService.setRule( |
| 288 | appId, |
| 289 | k8sNode.extBridge(), |
| 290 | selector, |
| 291 | tBuilder.build(), |
| 292 | PRIORITY_STATEFUL_SNAT_RULE, |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 293 | EXT_ENTRY_TABLE, |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 294 | install); |
| 295 | } |
| 296 | |
| 297 | private void setExtIntfArpRule(K8sNode k8sNode, boolean install) { |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 298 | k8sNodeService.completeNodes().forEach(n -> { |
| 299 | Device device = deviceService.getDevice(n.extBridge()); |
| 300 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 301 | .matchEthType(Ethernet.TYPE_ARP) |
| 302 | .matchArpOp(ARP.OP_REQUEST) |
| 303 | .matchArpTpa(Ip4Address.valueOf(k8sNode.extBridgeIp().toString())) |
| 304 | .build(); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 305 | |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 306 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 307 | .setArpOp(ARP.OP_REPLY) |
| 308 | .extension(buildMoveEthSrcToDstExtension(device), device.id()) |
| 309 | .extension(buildMoveArpShaToThaExtension(device), device.id()) |
| 310 | .extension(buildMoveArpSpaToTpaExtension(device), device.id()) |
Jian Li | 1efcb98 | 2020-02-04 00:32:21 +0900 | [diff] [blame] | 311 | .setEthSrc(k8sNode.extBridgeMac()) |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 312 | .setArpSha(k8sNode.extBridgeMac()) |
Jian Li | 1efcb98 | 2020-02-04 00:32:21 +0900 | [diff] [blame] | 313 | .setArpSpa(Ip4Address.valueOf(k8sNode.extBridgeIp().toString())) |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 314 | .setOutput(PortNumber.IN_PORT) |
| 315 | .build(); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 316 | |
Jian Li | 140d8a2 | 2019-04-24 23:41:44 +0900 | [diff] [blame] | 317 | k8sFlowRuleService.setRule( |
| 318 | appId, |
| 319 | n.extBridge(), |
| 320 | selector, |
| 321 | treatment, |
| 322 | PRIORITY_STATEFUL_SNAT_RULE, |
| 323 | EXT_ENTRY_TABLE, |
| 324 | install); |
| 325 | }); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 326 | } |
| 327 | |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 328 | private void setRouterSnatUpstreamRule(K8sNode k8sNode, |
| 329 | K8sRouterBridge bridge, |
| 330 | boolean install) { |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 331 | if (k8sNode.routerPortNum() == null) { |
| 332 | return; |
| 333 | } |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 334 | |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 335 | TrafficSelector ipSelector = DefaultTrafficSelector.builder() |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 336 | .matchEthType(Ethernet.TYPE_IPV4) |
| 337 | .matchInPort(k8sNode.routerToExtPortNum()) |
| 338 | .build(); |
| 339 | |
| 340 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 341 | .setOutput(k8sNode.routerPortNum()) |
| 342 | .build(); |
| 343 | |
| 344 | k8sFlowRuleService.setRule( |
| 345 | appId, |
| 346 | bridge.deviceId(), |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 347 | ipSelector, |
| 348 | treatment, |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 349 | PRIORITY_ROUTER_RULE, |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 350 | ROUTER_ENTRY_TABLE, |
| 351 | install); |
| 352 | |
| 353 | TrafficSelector arpSelector = DefaultTrafficSelector.builder() |
| 354 | .matchEthType(Ethernet.TYPE_ARP) |
| 355 | .matchInPort(k8sNode.routerToExtPortNum()) |
| 356 | .build(); |
| 357 | |
| 358 | k8sFlowRuleService.setRule( |
| 359 | appId, |
| 360 | bridge.deviceId(), |
| 361 | arpSelector, |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 362 | treatment, |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 363 | PRIORITY_ROUTER_RULE, |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 364 | ROUTER_ENTRY_TABLE, |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 365 | install); |
| 366 | } |
| 367 | |
| 368 | private void setRouterSnatDownstreamRule(K8sNode k8sNode, |
| 369 | K8sRouterBridge bridge, |
| 370 | boolean install) { |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 371 | if (k8sNode.routerPortNum() == null) { |
| 372 | return; |
| 373 | } |
| 374 | |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 375 | TrafficSelector ipSelector = DefaultTrafficSelector.builder() |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 376 | .matchEthType(Ethernet.TYPE_IPV4) |
| 377 | .matchInPort(k8sNode.routerPortNum()) |
| 378 | .matchIPDst(IpPrefix.valueOf(k8sNode.extBridgeIp(), 32)) |
| 379 | .build(); |
| 380 | |
| 381 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 382 | .setOutput(k8sNode.routerToExtPortNum()) |
| 383 | .build(); |
| 384 | |
| 385 | k8sFlowRuleService.setRule( |
| 386 | appId, |
| 387 | bridge.deviceId(), |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 388 | ipSelector, |
| 389 | treatment, |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 390 | PRIORITY_ROUTER_RULE, |
Jian Li | 2622d5a | 2020-10-12 02:07:30 +0900 | [diff] [blame] | 391 | ROUTER_ENTRY_TABLE, |
| 392 | install); |
| 393 | |
| 394 | TrafficSelector arpSelector = DefaultTrafficSelector.builder() |
| 395 | .matchEthType(Ethernet.TYPE_ARP) |
| 396 | .matchInPort(k8sNode.routerPortNum()) |
| 397 | .matchArpTpa(Ip4Address.valueOf(k8sNode.extBridgeIp().toString())) |
| 398 | .build(); |
| 399 | |
| 400 | k8sFlowRuleService.setRule( |
| 401 | appId, |
| 402 | bridge.deviceId(), |
| 403 | arpSelector, |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 404 | treatment, |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 405 | PRIORITY_ROUTER_RULE, |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 406 | ROUTER_ENTRY_TABLE, |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 407 | install); |
| 408 | } |
| 409 | |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 410 | private void setRouterSnatRules(K8sNode k8sNode, boolean install) { |
| 411 | for (K8sHost host : k8sHostService.completeHosts()) { |
| 412 | if (host.nodeNames().contains(k8sNode.hostname())) { |
| 413 | K8sRouterBridge bridge = host.routerBridges().stream() |
| 414 | .filter(b -> b.segmentId() == k8sNode.segmentId()) |
| 415 | .findAny().orElse(null); |
| 416 | if (bridge != null) { |
| 417 | setRouterSnatUpstreamRule(k8sNode, bridge, install); |
| 418 | setRouterSnatDownstreamRule(k8sNode, bridge, install); |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | } |
| 423 | |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 424 | private class InternalK8sNodeListener implements K8sNodeListener { |
| 425 | |
| 426 | private boolean isRelevantHelper() { |
| 427 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 428 | } |
| 429 | |
| 430 | @Override |
| 431 | public void event(K8sNodeEvent event) { |
| 432 | switch (event.type()) { |
| 433 | case K8S_NODE_COMPLETE: |
| 434 | eventExecutor.execute(() -> processNodeCompletion(event.subject())); |
| 435 | break; |
Jian Li | 1b08d65 | 2019-05-02 17:28:09 +0900 | [diff] [blame] | 436 | case K8S_NODE_UPDATED: |
| 437 | eventExecutor.execute(() -> processNodeUpdate(event.subject())); |
| 438 | break; |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 439 | case K8S_NODE_OFF_BOARDED: |
| 440 | eventExecutor.execute(() -> processNodeOffboard(event.subject())); |
| 441 | break; |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 442 | case K8S_NODE_INCOMPLETE: |
| 443 | default: |
| 444 | break; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | private void processNodeCompletion(K8sNode k8sNode) { |
| 449 | if (!isRelevantHelper()) { |
| 450 | return; |
| 451 | } |
| 452 | |
| 453 | setExtIntfArpRule(k8sNode, true); |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 454 | setExtSnatDownstreamRule(k8sNode, true); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 455 | setContainerToExtRule(k8sNode, true); |
Jian Li | 4b5048a | 2020-10-08 02:57:45 +0900 | [diff] [blame] | 456 | setRouterSnatRules(k8sNode, true); |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 457 | } |
Jian Li | 1b08d65 | 2019-05-02 17:28:09 +0900 | [diff] [blame] | 458 | |
Jian Li | dc1df64 | 2020-11-25 16:49:34 +0900 | [diff] [blame^] | 459 | private void processNodeOffboard(K8sNode k8sNode) { |
| 460 | if (!isRelevantHelper()) { |
| 461 | return; |
| 462 | } |
| 463 | |
| 464 | setExtIntfArpRule(k8sNode, false); |
| 465 | setExtSnatDownstreamRule(k8sNode, false); |
| 466 | setContainerToExtRule(k8sNode, false); |
| 467 | setRouterSnatRules(k8sNode, false); |
| 468 | } |
| 469 | |
Jian Li | 1b08d65 | 2019-05-02 17:28:09 +0900 | [diff] [blame] | 470 | private void processNodeUpdate(K8sNode k8sNode) { |
| 471 | if (k8sNode.extGatewayMac() != null) { |
Jian Li | 019ce6a | 2020-09-09 10:23:21 +0900 | [diff] [blame] | 472 | setExtSnatUpstreamRule(k8sNode, true); |
| 473 | } |
| 474 | } |
| 475 | } |
| 476 | |
Jian Li | eb488ea | 2019-04-16 01:50:02 +0900 | [diff] [blame] | 477 | private class InternalK8sNetworkListener implements K8sNetworkListener { |
| 478 | |
| 479 | private boolean isRelevantHelper() { |
| 480 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 481 | } |
| 482 | |
| 483 | @Override |
| 484 | public void event(K8sNetworkEvent event) { |
| 485 | switch (event.type()) { |
| 486 | case K8S_PORT_ACTIVATED: |
| 487 | eventExecutor.execute(() -> processPortActivation(event.port())); |
| 488 | break; |
| 489 | case K8S_PORT_REMOVED: |
| 490 | eventExecutor.execute(() -> processPortRemoval(event.port())); |
| 491 | break; |
| 492 | default: |
| 493 | break; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | private void processPortActivation(K8sPort port) { |
| 498 | if (!isRelevantHelper()) { |
| 499 | return; |
| 500 | } |
| 501 | |
| 502 | k8sNodeService.completeNodes().forEach(n -> |
| 503 | setExtToContainerRule(n, port, true)); |
| 504 | } |
| 505 | |
| 506 | private void processPortRemoval(K8sPort port) { |
| 507 | if (!isRelevantHelper()) { |
| 508 | return; |
| 509 | } |
| 510 | |
| 511 | k8sNodeService.completeNodes().forEach(n -> |
| 512 | setExtToContainerRule(n, port, false)); |
| 513 | } |
| 514 | } |
| 515 | } |