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; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 26 | import org.onlab.packet.VlanId; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 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.kubevirtnetworking.api.KubevirtFlowRuleService; |
| 33 | import org.onosproject.kubevirtnetworking.api.KubevirtNetwork; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 34 | import org.onosproject.kubevirtnetworking.api.KubevirtNetworkService; |
| 35 | import org.onosproject.kubevirtnetworking.api.KubevirtPort; |
| 36 | import org.onosproject.kubevirtnetworking.api.KubevirtPortEvent; |
| 37 | import org.onosproject.kubevirtnetworking.api.KubevirtPortListener; |
| 38 | import org.onosproject.kubevirtnetworking.api.KubevirtPortService; |
| 39 | import org.onosproject.kubevirtnetworking.api.KubevirtRouter; |
| 40 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterEvent; |
| 41 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterListener; |
| 42 | import org.onosproject.kubevirtnetworking.api.KubevirtRouterService; |
| 43 | import org.onosproject.kubevirtnetworking.util.RulePopulatorUtil; |
| 44 | import org.onosproject.kubevirtnode.api.KubevirtNode; |
Jian Li | 517597a | 2021-03-22 11:04:52 +0900 | [diff] [blame] | 45 | import org.onosproject.kubevirtnode.api.KubevirtNodeEvent; |
| 46 | import org.onosproject.kubevirtnode.api.KubevirtNodeListener; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 47 | import org.onosproject.kubevirtnode.api.KubevirtNodeService; |
| 48 | import org.onosproject.net.Device; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 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; |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 57 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 58 | import org.onosproject.net.packet.PacketService; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 59 | import org.osgi.service.component.annotations.Activate; |
| 60 | import org.osgi.service.component.annotations.Component; |
| 61 | import org.osgi.service.component.annotations.Deactivate; |
| 62 | import org.osgi.service.component.annotations.Reference; |
| 63 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 64 | import org.slf4j.Logger; |
| 65 | |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 66 | import java.nio.ByteBuffer; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 67 | import java.util.Objects; |
| 68 | import java.util.Set; |
| 69 | import java.util.concurrent.ExecutorService; |
| 70 | |
| 71 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 72 | import static org.onlab.util.Tools.groupedThreads; |
| 73 | import static org.onosproject.kubevirtnetworking.api.Constants.DEFAULT_GATEWAY_MAC; |
| 74 | import static org.onosproject.kubevirtnetworking.api.Constants.FLAT_TABLE; |
| 75 | import static org.onosproject.kubevirtnetworking.api.Constants.FORWARDING_TABLE; |
| 76 | import static org.onosproject.kubevirtnetworking.api.Constants.KUBEVIRT_NETWORKING_APP_ID; |
| 77 | import static org.onosproject.kubevirtnetworking.api.Constants.PRE_FLAT_TABLE; |
| 78 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_ARP_GATEWAY_RULE; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 79 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_FORWARDING_RULE; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 80 | import static org.onosproject.kubevirtnetworking.api.Constants.PRIORITY_STATEFUL_SNAT_RULE; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 81 | import static org.onosproject.kubevirtnetworking.api.Constants.TUNNEL_DEFAULT_TABLE; |
| 82 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.GENEVE; |
| 83 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.GRE; |
| 84 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.VLAN; |
| 85 | import static org.onosproject.kubevirtnetworking.api.KubevirtNetwork.Type.VXLAN; |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 86 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.buildGarpPacket; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 87 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.externalPatchPortNum; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 88 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.gatewayNodeForSpecifiedRouter; |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 89 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterForKubevirtPort; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 90 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterMacAddress; |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 91 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.getRouterSnatIpAddress; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 92 | import static org.onosproject.kubevirtnetworking.util.KubevirtNetworkingUtil.tunnelPort; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 93 | import static org.onosproject.kubevirtnetworking.util.RulePopulatorUtil.CT_NAT_SRC_FLAG; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 94 | import static org.onosproject.kubevirtnetworking.util.RulePopulatorUtil.buildExtension; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 95 | import static org.slf4j.LoggerFactory.getLogger; |
| 96 | |
| 97 | /** |
| 98 | * Handles kubevirt routing snat. |
| 99 | */ |
| 100 | |
| 101 | @Component(immediate = true) |
| 102 | public class KubevirtRoutingSnatHandler { |
| 103 | protected final Logger log = getLogger(getClass()); |
| 104 | private static final int DEFAULT_TTL = 0xff; |
| 105 | |
| 106 | private static final int TP_PORT_MINIMUM_NUM = 1025; |
| 107 | private static final int TP_PORT_MAXIMUM_NUM = 65535; |
| 108 | |
| 109 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 110 | protected CoreService coreService; |
| 111 | |
| 112 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 113 | protected ClusterService clusterService; |
| 114 | |
| 115 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 116 | protected LeadershipService leadershipService; |
| 117 | |
| 118 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 119 | protected DeviceAdminService deviceService; |
| 120 | |
| 121 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 122 | protected KubevirtPortService kubevirtPortService; |
| 123 | |
| 124 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 125 | protected KubevirtNodeService kubevirtNodeService; |
| 126 | |
| 127 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 128 | protected KubevirtNetworkService kubevirtNetworkService; |
| 129 | |
| 130 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 131 | protected KubevirtFlowRuleService flowService; |
| 132 | |
| 133 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 134 | protected DriverService driverService; |
| 135 | |
| 136 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 137 | protected PacketService packetService; |
| 138 | |
| 139 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 140 | protected KubevirtRouterService kubevirtRouterService; |
| 141 | |
| 142 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 143 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 144 | |
| 145 | private final InternalKubevirtPortListener kubevirtPortListener = |
| 146 | new InternalKubevirtPortListener(); |
| 147 | |
| 148 | private final InternalRouterEventListener kubevirtRouterlistener = |
| 149 | new InternalRouterEventListener(); |
| 150 | |
Jian Li | 517597a | 2021-03-22 11:04:52 +0900 | [diff] [blame] | 151 | private final InternalNodeEventListener kubevirtNodeListener = |
| 152 | new InternalNodeEventListener(); |
| 153 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 154 | private ApplicationId appId; |
| 155 | private NodeId localNodeId; |
| 156 | |
| 157 | @Activate |
| 158 | protected void activate() { |
| 159 | appId = coreService.registerApplication(KUBEVIRT_NETWORKING_APP_ID); |
| 160 | localNodeId = clusterService.getLocalNode().id(); |
| 161 | leadershipService.runForLeadership(appId.name()); |
| 162 | |
| 163 | kubevirtPortService.addListener(kubevirtPortListener); |
| 164 | kubevirtRouterService.addListener(kubevirtRouterlistener); |
Jian Li | 517597a | 2021-03-22 11:04:52 +0900 | [diff] [blame] | 165 | kubevirtNodeService.addListener(kubevirtNodeListener); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 166 | |
| 167 | log.info("Started"); |
| 168 | } |
| 169 | |
| 170 | @Deactivate |
| 171 | protected void deactivate() { |
| 172 | leadershipService.withdraw(appId.name()); |
Jian Li | 517597a | 2021-03-22 11:04:52 +0900 | [diff] [blame] | 173 | kubevirtNodeService.removeListener(kubevirtNodeListener); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 174 | kubevirtPortService.removeListener(kubevirtPortListener); |
| 175 | kubevirtRouterService.removeListener(kubevirtRouterlistener); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 176 | |
| 177 | eventExecutor.shutdown(); |
| 178 | |
| 179 | log.info("Stopped"); |
| 180 | } |
| 181 | |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 182 | private void initGatewayNodeSnatForRouter(KubevirtRouter router, String gateway, boolean install) { |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 183 | if (router.electedGateway() == null) { |
| 184 | log.warn("Fail to initialize gateway node snat for router {} " + |
| 185 | "because there's no gateway assigned to it", router.name()); |
| 186 | return; |
| 187 | } |
| 188 | |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 189 | KubevirtNode electedGw = kubevirtNodeService.node(gateway); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 190 | if (electedGw == null) { |
| 191 | log.warn("Fail to initialize gateway node snat for router {} " + |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 192 | "because there's no gateway assigned to it", router.name()); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 193 | return; |
| 194 | } |
| 195 | |
| 196 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 197 | |
| 198 | if (routerSnatIp == null) { |
| 199 | log.warn("Fail to initialize gateway node snat for router {} " + |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 200 | "because there's no gateway snat ip assigned to it", router.name()); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 201 | return; |
| 202 | } |
| 203 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 204 | String externalNet = router.external().values().stream().findAny().orElse(null); |
| 205 | if (externalNet == null) { |
| 206 | return; |
| 207 | } |
| 208 | |
| 209 | if (router.peerRouter() != null && |
| 210 | router.peerRouter().ipAddress() != null && router.peerRouter().macAddress() != null) { |
| 211 | setArpResponseToPeerRouter(electedGw, Ip4Address.valueOf(routerSnatIp), install); |
| 212 | setStatefulSnatUpstreamRules(electedGw, router, Ip4Address.valueOf(routerSnatIp), |
| 213 | router.peerRouter().macAddress(), install); |
| 214 | setStatefulSnatDownstreamRuleForRouter(electedGw, router, Ip4Address.valueOf(routerSnatIp), |
| 215 | kubevirtNetworkService.network(externalNet), install); |
| 216 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 217 | } |
| 218 | |
| 219 | private void setArpResponseToPeerRouter(KubevirtNode gatewayNode, Ip4Address ip4Address, boolean install) { |
| 220 | |
| 221 | TrafficSelector selector = DefaultTrafficSelector.builder() |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 222 | .matchInPort(externalPatchPortNum(deviceService, gatewayNode)) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 223 | .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| 224 | .matchArpOp(ARP.OP_REQUEST) |
| 225 | .matchArpTpa(ip4Address) |
| 226 | .build(); |
| 227 | |
| 228 | Device device = deviceService.getDevice(gatewayNode.intgBridge()); |
| 229 | |
| 230 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 231 | .extension(RulePopulatorUtil.buildMoveEthSrcToDstExtension(device), device.id()) |
| 232 | .extension(RulePopulatorUtil.buildMoveArpShaToThaExtension(device), device.id()) |
| 233 | .extension(RulePopulatorUtil.buildMoveArpSpaToTpaExtension(device), device.id()) |
| 234 | .setArpOp(ARP.OP_REPLY) |
| 235 | .setEthSrc(DEFAULT_GATEWAY_MAC) |
| 236 | .setArpSha(DEFAULT_GATEWAY_MAC) |
| 237 | .setArpSpa(ip4Address) |
| 238 | .setOutput(PortNumber.IN_PORT) |
| 239 | .build(); |
| 240 | |
| 241 | flowService.setRule( |
| 242 | appId, |
| 243 | gatewayNode.intgBridge(), |
| 244 | selector, |
| 245 | treatment, |
| 246 | PRIORITY_ARP_GATEWAY_RULE, |
| 247 | PRE_FLAT_TABLE, |
| 248 | install); |
| 249 | } |
| 250 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 251 | private void setStatefulSnatUpstreamRules(KubevirtNode gatewayNode, |
| 252 | KubevirtRouter router, |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 253 | Ip4Address routerSnatIp, |
| 254 | MacAddress peerRouterMacAddress, |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 255 | boolean install) { |
| 256 | MacAddress routerMacAddress = getRouterMacAddress(router); |
| 257 | if (routerMacAddress == null) { |
| 258 | return; |
| 259 | } |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 260 | |
| 261 | if (routerSnatIp == null || peerRouterMacAddress == null) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 262 | return; |
| 263 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 264 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 265 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder() |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 266 | .matchEthType(Ethernet.TYPE_IPV4) |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 267 | .matchEthDst(routerMacAddress); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 268 | |
| 269 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 270 | |
| 271 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 272 | .niciraConnTrackTreatmentBuilder(driverService, gatewayNode.intgBridge()) |
| 273 | .commit(true) |
| 274 | .natFlag(CT_NAT_SRC_FLAG) |
| 275 | .natAction(true) |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 276 | .natIp(routerSnatIp) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 277 | .natPortMin(TpPort.tpPort(TP_PORT_MINIMUM_NUM)) |
| 278 | .natPortMax(TpPort.tpPort(TP_PORT_MAXIMUM_NUM)) |
| 279 | .build(); |
| 280 | |
| 281 | tBuilder.extension(natTreatment, gatewayNode.intgBridge()) |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 282 | .setEthDst(peerRouterMacAddress) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 283 | .setEthSrc(DEFAULT_GATEWAY_MAC) |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 284 | .setOutput(externalPatchPortNum(deviceService, gatewayNode)); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 285 | |
| 286 | flowService.setRule( |
| 287 | appId, |
| 288 | gatewayNode.intgBridge(), |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 289 | selector.build(), |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 290 | tBuilder.build(), |
| 291 | PRIORITY_STATEFUL_SNAT_RULE, |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 292 | PRE_FLAT_TABLE, |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 293 | install); |
| 294 | } |
| 295 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 296 | private void setStatefulSnatDownStreamRuleForKubevirtPort(KubevirtRouter router, |
| 297 | KubevirtNode gatewayNode, |
| 298 | KubevirtPort kubevirtPort, |
| 299 | boolean install) { |
| 300 | MacAddress routerMacAddress = getRouterMacAddress(router); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 301 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 302 | if (routerMacAddress == null) { |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 303 | log.error("Failed to set stateful snat downstream rule because " + |
| 304 | "there's no br-int port for device {}", gatewayNode.intgBridge()); |
| 305 | return; |
| 306 | } |
| 307 | |
| 308 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 309 | .matchEthType(Ethernet.TYPE_IPV4) |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 310 | .matchEthSrc(routerMacAddress) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 311 | .matchIPDst(IpPrefix.valueOf(kubevirtPort.ipAddress(), 32)); |
| 312 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 313 | KubevirtNetwork network = kubevirtNetworkService.network(kubevirtPort.networkId()); |
| 314 | |
| 315 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 316 | .setEthDst(kubevirtPort.macAddress()) |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 317 | .transition(FORWARDING_TABLE); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 318 | |
| 319 | flowService.setRule( |
| 320 | appId, |
| 321 | gatewayNode.intgBridge(), |
| 322 | sBuilder.build(), |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 323 | tBuilder.build(), |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 324 | PRIORITY_STATEFUL_SNAT_RULE, |
| 325 | FLAT_TABLE, |
| 326 | install); |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 327 | |
| 328 | if (network.type() == VXLAN || network.type() == GENEVE || network.type() == GRE) { |
| 329 | setDownStreamRulesToGatewayTunBridge(router, network, kubevirtPort, install); |
| 330 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 331 | } |
| 332 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 333 | private void setDownStreamRulesToGatewayTunBridge(KubevirtRouter router, |
| 334 | KubevirtNetwork network, |
| 335 | KubevirtPort port, boolean install) { |
| 336 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 337 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 338 | if (electedGw == null) { |
| 339 | return; |
| 340 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 341 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 342 | KubevirtNode workerNode = kubevirtNodeService.node(port.deviceId()); |
| 343 | if (workerNode == null) { |
| 344 | return; |
| 345 | } |
| 346 | |
| 347 | PortNumber tunnelPortNumber = tunnelPort(electedGw, network); |
| 348 | if (tunnelPortNumber == null) { |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 349 | return; |
| 350 | } |
| 351 | |
| 352 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder() |
| 353 | .matchEthType(Ethernet.TYPE_IPV4) |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 354 | .matchIPDst(IpPrefix.valueOf(port.ipAddress(), 32)) |
| 355 | .matchEthDst(port.macAddress()); |
| 356 | |
| 357 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder() |
| 358 | .setTunnelId(Long.parseLong(network.segmentId())) |
| 359 | .extension(buildExtension( |
| 360 | deviceService, |
| 361 | electedGw.tunBridge(), |
| 362 | workerNode.dataIp().getIp4Address()), |
| 363 | electedGw.tunBridge()) |
| 364 | .setOutput(tunnelPortNumber); |
| 365 | |
| 366 | flowService.setRule( |
| 367 | appId, |
| 368 | electedGw.tunBridge(), |
| 369 | sBuilder.build(), |
| 370 | tBuilder.build(), |
| 371 | PRIORITY_FORWARDING_RULE, |
| 372 | TUNNEL_DEFAULT_TABLE, |
| 373 | install); |
| 374 | } |
| 375 | |
| 376 | private void setStatefulSnatDownstreamRuleForRouter(KubevirtNode gatewayNode, |
| 377 | KubevirtRouter router, |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 378 | IpAddress routerSnatIp, |
| 379 | KubevirtNetwork externalNetwork, |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 380 | boolean install) { |
| 381 | |
| 382 | MacAddress routerMacAddress = getRouterMacAddress(router); |
| 383 | |
| 384 | if (routerMacAddress == null) { |
| 385 | log.warn("Failed to set stateful snat downstream rule because " + |
| 386 | "there's no br-int port for device {}", gatewayNode.intgBridge()); |
| 387 | return; |
| 388 | } |
| 389 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 390 | if (externalNetwork == null) { |
| 391 | log.warn("Failed to set stateful snat downstream rule because " + |
| 392 | "there's no external network router {}", router.name()); |
| 393 | return; |
| 394 | } |
| 395 | |
| 396 | TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| 397 | TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| 398 | |
| 399 | if (externalNetwork.type() == VLAN) { |
| 400 | sBuilder.matchEthType(Ethernet.TYPE_VLAN) |
| 401 | .matchVlanId(VlanId.vlanId(externalNetwork.segmentId())); |
| 402 | tBuilder.popVlan(); |
| 403 | } else { |
| 404 | sBuilder.matchEthType(Ethernet.TYPE_IPV4); |
| 405 | } |
| 406 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 407 | sBuilder.matchIPDst(IpPrefix.valueOf(routerSnatIp, 32)); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 408 | |
| 409 | ExtensionTreatment natTreatment = RulePopulatorUtil |
| 410 | .niciraConnTrackTreatmentBuilder(driverService, gatewayNode.intgBridge()) |
| 411 | .commit(false) |
| 412 | .natAction(true) |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 413 | .table((short) FLAT_TABLE) |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 414 | .build(); |
| 415 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 416 | tBuilder.setEthSrc(routerMacAddress) |
| 417 | .extension(natTreatment, gatewayNode.intgBridge()); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 418 | |
| 419 | flowService.setRule( |
| 420 | appId, |
| 421 | gatewayNode.intgBridge(), |
| 422 | sBuilder.build(), |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 423 | tBuilder.build(), |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 424 | PRIORITY_STATEFUL_SNAT_RULE, |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 425 | PRE_FLAT_TABLE, |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 426 | install); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | private class InternalRouterEventListener implements KubevirtRouterListener { |
| 430 | private boolean isRelevantHelper() { |
| 431 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 432 | } |
| 433 | |
| 434 | @Override |
| 435 | public void event(KubevirtRouterEvent event) { |
| 436 | switch (event.type()) { |
| 437 | case KUBEVIRT_ROUTER_CREATED: |
| 438 | eventExecutor.execute(() -> processRouterCreation(event.subject())); |
| 439 | break; |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 440 | case KUBEVIRT_SNAT_STATUS_DISABLED: |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 441 | case KUBEVIRT_ROUTER_REMOVED: |
| 442 | eventExecutor.execute(() -> processRouterDeletion(event.subject())); |
| 443 | break; |
| 444 | case KUBEVIRT_ROUTER_UPDATED: |
| 445 | eventExecutor.execute(() -> processRouterUpdate(event.subject())); |
| 446 | break; |
| 447 | case KUBEVIRT_ROUTER_INTERNAL_NETWORKS_ATTACHED: |
| 448 | eventExecutor.execute(() -> processRouterInternalNetworksAttached(event.subject(), |
| 449 | event.internal())); |
| 450 | break; |
| 451 | case KUBEVIRT_ROUTER_INTERNAL_NETWORKS_DETACHED: |
| 452 | eventExecutor.execute(() -> processRouterInternalNetworksDetached(event.subject(), |
| 453 | event.internal())); |
| 454 | break; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 455 | case KUBEVIRT_GATEWAY_NODE_ATTACHED: |
| 456 | eventExecutor.execute(() -> processRouterGatewayNodeAttached(event.subject(), |
| 457 | event.gateway())); |
| 458 | break; |
| 459 | case KUBEVIRT_GATEWAY_NODE_DETACHED: |
| 460 | eventExecutor.execute(() -> processRouterGatewayNodeDetached(event.subject(), |
| 461 | event.gateway())); |
| 462 | break; |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 463 | case KUBEVIRT_GATEWAY_NODE_CHANGED: |
| 464 | eventExecutor.execute(() -> processRouterGatewayNodeChanged(event.subject(), |
| 465 | event.gateway())); |
| 466 | break; |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 467 | case KUBEVIRT_ROUTER_EXTERNAL_NETWORK_ATTACHED: |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 468 | eventExecutor.execute(() -> processRouterExternalNetAttached(event.subject(), |
| 469 | event.externalIp(), event.externalNet(), |
| 470 | event.externalPeerRouterIp(), event.peerRouterMac())); |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 471 | break; |
| 472 | case KUBEVIRT_ROUTER_EXTERNAL_NETWORK_DETACHED: |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 473 | eventExecutor.execute(() -> processRouterExternalNetDetached(event.subject(), |
| 474 | event.externalIp(), event.externalNet(), |
| 475 | event.externalPeerRouterIp(), event.peerRouterMac())); |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 476 | break; |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 477 | default: |
| 478 | //do nothing |
| 479 | break; |
| 480 | } |
| 481 | } |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 482 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 483 | private void processRouterExternalNetAttached(KubevirtRouter router, String externalIp, String externalNet, |
| 484 | String peerRouterIp, MacAddress peerRouterMac) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 485 | if (!isRelevantHelper()) { |
| 486 | return; |
| 487 | } |
| 488 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 489 | |
| 490 | if (electedGw == null) { |
| 491 | log.warn("Fail to process router external network attached gateway node snat for router {} " + |
| 492 | "there's no gateway assigned to it", router.name()); |
| 493 | return; |
| 494 | } |
| 495 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 496 | if (router.enableSnat() && |
| 497 | peerRouterIp != null && peerRouterMac != null && externalIp != null && externalNet != null) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 498 | setArpResponseToPeerRouter(electedGw, Ip4Address.valueOf(externalIp), true); |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 499 | setStatefulSnatUpstreamRules(electedGw, router, Ip4Address.valueOf(externalIp), |
| 500 | peerRouterMac, true); |
| 501 | setStatefulSnatDownstreamRuleForRouter(electedGw, router, Ip4Address.valueOf(externalIp), |
| 502 | kubevirtNetworkService.network(externalNet), true); |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | router.internal() |
| 506 | .stream() |
| 507 | .filter(networkId -> kubevirtNetworkService.network(networkId) != null) |
| 508 | .map(kubevirtNetworkService::network) |
| 509 | .forEach(network -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 510 | kubevirtPortService.ports(network.networkId()).forEach(kubevirtPort -> { |
| 511 | setStatefulSnatDownStreamRuleForKubevirtPort(router, |
| 512 | electedGw, kubevirtPort, true); |
| 513 | }); |
| 514 | }); |
| 515 | } |
| 516 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 517 | private void processRouterExternalNetDetached(KubevirtRouter router, String externalIp, String externalNet, |
| 518 | String peerRouterIp, MacAddress peerRouterMac) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 519 | if (!isRelevantHelper()) { |
| 520 | return; |
| 521 | } |
| 522 | if (!isRelevantHelper()) { |
| 523 | return; |
| 524 | } |
| 525 | KubevirtNode electedGw = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 526 | |
| 527 | if (electedGw == null) { |
| 528 | log.warn("Fail to process router external network attached gateway node snat for router {} " + |
| 529 | "there's no gateway assigned to it", router.name()); |
| 530 | return; |
| 531 | } |
| 532 | |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 533 | if (router.enableSnat() && |
| 534 | peerRouterIp != null && peerRouterMac != null && externalIp != null && externalNet != null) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 535 | setArpResponseToPeerRouter(electedGw, Ip4Address.valueOf(externalIp), false); |
Daniel Park | 5a3e939 | 2021-03-23 08:00:00 +0900 | [diff] [blame] | 536 | setStatefulSnatUpstreamRules(electedGw, router, |
| 537 | Ip4Address.valueOf(externalIp), peerRouterMac, false); |
| 538 | setStatefulSnatDownstreamRuleForRouter(electedGw, router, Ip4Address.valueOf(externalIp), |
| 539 | kubevirtNetworkService.network(externalNet), false); |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | router.internal() |
| 543 | .stream() |
| 544 | .filter(networkId -> kubevirtNetworkService.network(networkId) != null) |
| 545 | .map(kubevirtNetworkService::network) |
| 546 | .forEach(network -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 547 | kubevirtPortService.ports(network.networkId()).forEach(kubevirtPort -> { |
| 548 | setStatefulSnatDownStreamRuleForKubevirtPort(router, |
| 549 | electedGw, kubevirtPort, false); |
| 550 | }); |
| 551 | }); |
| 552 | } |
| 553 | |
| 554 | private void processRouterGatewayNodeAttached(KubevirtRouter router, String attachedGatewayId) { |
| 555 | if (!isRelevantHelper()) { |
| 556 | return; |
| 557 | } |
| 558 | |
| 559 | KubevirtNode attachedGateway = kubevirtNodeService.node(attachedGatewayId); |
| 560 | if (attachedGateway == null) { |
| 561 | return; |
| 562 | } |
| 563 | |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 564 | if (!router.enableSnat()) { |
| 565 | return; |
| 566 | } |
| 567 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 568 | router.internal() |
| 569 | .stream() |
| 570 | .filter(networkId -> kubevirtNetworkService.network(networkId) != null) |
| 571 | .map(kubevirtNetworkService::network) |
| 572 | .forEach(network -> { |
| 573 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 574 | if (routerSnatIp == null) { |
| 575 | return; |
| 576 | } |
| 577 | kubevirtPortService.ports(network.networkId()).forEach(kubevirtPort -> { |
| 578 | setStatefulSnatDownStreamRuleForKubevirtPort(router, |
| 579 | attachedGateway, kubevirtPort, true); |
| 580 | }); |
| 581 | }); |
| 582 | } |
| 583 | |
| 584 | private void processRouterGatewayNodeDetached(KubevirtRouter router, String detachedGatewayId) { |
| 585 | if (!isRelevantHelper()) { |
| 586 | return; |
| 587 | } |
| 588 | |
| 589 | KubevirtNode detachedGateway = kubevirtNodeService.node(detachedGatewayId); |
| 590 | if (detachedGateway == null) { |
| 591 | return; |
| 592 | } |
| 593 | |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 594 | if (!router.enableSnat()) { |
| 595 | return; |
| 596 | } |
| 597 | |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 598 | router.internal() |
| 599 | .stream() |
| 600 | .filter(networkId -> kubevirtNetworkService.network(networkId) != null) |
| 601 | .map(kubevirtNetworkService::network) |
| 602 | .forEach(network -> { |
| 603 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 604 | if (routerSnatIp == null) { |
| 605 | return; |
| 606 | } |
| 607 | |
| 608 | kubevirtPortService.ports(network.networkId()).forEach(kubevirtPort -> { |
| 609 | setStatefulSnatDownStreamRuleForKubevirtPort(router, |
| 610 | detachedGateway, kubevirtPort, false); |
| 611 | }); |
| 612 | }); |
| 613 | } |
| 614 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 615 | private void processRouterInternalNetworksAttached(KubevirtRouter router, |
| 616 | Set<String> attachedInternalNetworks) { |
| 617 | if (!isRelevantHelper()) { |
| 618 | return; |
| 619 | } |
| 620 | |
| 621 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 622 | if (gwNode == null) { |
| 623 | return; |
| 624 | } |
| 625 | |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 626 | if (!router.enableSnat()) { |
| 627 | return; |
| 628 | } |
| 629 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 630 | attachedInternalNetworks.forEach(networkId -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 631 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 632 | if (routerSnatIp == null) { |
| 633 | return; |
| 634 | } |
| 635 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 636 | kubevirtPortService.ports(networkId).forEach(kubevirtPort -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 637 | setStatefulSnatDownStreamRuleForKubevirtPort(router, gwNode, kubevirtPort, true); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 638 | }); |
| 639 | }); |
| 640 | } |
| 641 | |
| 642 | private void processRouterInternalNetworksDetached(KubevirtRouter router, |
| 643 | Set<String> detachedInternalNetworks) { |
| 644 | if (!isRelevantHelper()) { |
| 645 | return; |
| 646 | } |
| 647 | |
| 648 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 649 | if (gwNode == null) { |
| 650 | return; |
| 651 | } |
| 652 | |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 653 | if (!router.enableSnat()) { |
| 654 | return; |
| 655 | } |
| 656 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 657 | detachedInternalNetworks.forEach(networkId -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 658 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 659 | if (routerSnatIp == null) { |
| 660 | log.info("snatIp is null"); |
| 661 | return; |
| 662 | } |
| 663 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 664 | kubevirtPortService.ports(networkId).forEach(kubevirtPort -> { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 665 | setStatefulSnatDownStreamRuleForKubevirtPort(router, gwNode, kubevirtPort, false); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 666 | }); |
| 667 | }); |
| 668 | } |
| 669 | private void processRouterCreation(KubevirtRouter router) { |
| 670 | if (!isRelevantHelper()) { |
| 671 | return; |
| 672 | } |
| 673 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 674 | initGatewayNodeSnatForRouter(router, router.electedGateway(), true); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 675 | } |
| 676 | } |
| 677 | |
| 678 | private void processRouterDeletion(KubevirtRouter router) { |
| 679 | if (!isRelevantHelper()) { |
| 680 | return; |
| 681 | } |
Daniel Park | 8ad7c3b | 2021-04-09 15:45:59 +0900 | [diff] [blame] | 682 | if (!router.external().isEmpty() && router.peerRouter() != null) { |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 683 | initGatewayNodeSnatForRouter(router, router.electedGateway(), false); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 684 | } |
| 685 | } |
| 686 | |
| 687 | private void processRouterUpdate(KubevirtRouter router) { |
| 688 | if (!isRelevantHelper()) { |
| 689 | return; |
| 690 | } |
| 691 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 692 | initGatewayNodeSnatForRouter(router, router.electedGateway(), true); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 693 | } |
| 694 | } |
Daniel Park | 157947f | 2021-04-09 17:50:53 +0900 | [diff] [blame^] | 695 | |
| 696 | private void processRouterGatewayNodeChanged(KubevirtRouter router, |
| 697 | String disAssociatedGateway) { |
| 698 | if (!isRelevantHelper()) { |
| 699 | return; |
| 700 | } |
| 701 | |
| 702 | if (router.enableSnat() && !router.external().isEmpty() && router.peerRouter() != null) { |
| 703 | initGatewayNodeSnatForRouter(router, disAssociatedGateway, false); |
| 704 | initGatewayNodeSnatForRouter(router, router.electedGateway(), true); |
| 705 | |
| 706 | processRouterGatewayNodeDetached(router, disAssociatedGateway); |
| 707 | processRouterGatewayNodeAttached(router, router.electedGateway()); |
| 708 | |
| 709 | sendGarpPacketForSnatIp(router); |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | private void sendGarpPacketForSnatIp(KubevirtRouter router) { |
| 714 | if (router == null || router.electedGateway() == null) { |
| 715 | return; |
| 716 | } |
| 717 | |
| 718 | String routerSnatIp = router.external().keySet().stream().findAny().orElse(null); |
| 719 | |
| 720 | if (routerSnatIp == null) { |
| 721 | log.warn("Fail to initialize gateway node snat for router {} " + |
| 722 | "because there's no gateway snat ip assigned to it", router.name()); |
| 723 | return; |
| 724 | } |
| 725 | |
| 726 | Ethernet ethernet = buildGarpPacket(DEFAULT_GATEWAY_MAC, IpAddress.valueOf(routerSnatIp)); |
| 727 | |
| 728 | if (ethernet == null) { |
| 729 | return; |
| 730 | } |
| 731 | |
| 732 | KubevirtNode gatewayNode = kubevirtNodeService.node(router.electedGateway()); |
| 733 | |
| 734 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 735 | .setOutput(externalPatchPortNum(deviceService, gatewayNode)).build(); |
| 736 | |
| 737 | packetService.emit(new DefaultOutboundPacket(gatewayNode.intgBridge(), treatment, |
| 738 | ByteBuffer.wrap(ethernet.serialize()))); |
| 739 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 740 | } |
| 741 | |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 742 | private class InternalKubevirtPortListener implements KubevirtPortListener { |
| 743 | |
| 744 | private boolean isRelevantHelper() { |
| 745 | return Objects.equals(localNodeId, leadershipService.getLeader(appId.name())); |
| 746 | } |
| 747 | |
| 748 | @Override |
| 749 | public void event(KubevirtPortEvent event) { |
| 750 | switch (event.type()) { |
| 751 | case KUBEVIRT_PORT_CREATED: |
| 752 | eventExecutor.execute(() -> processPortCreation(event.subject())); |
| 753 | break; |
| 754 | case KUBEVIRT_PORT_UPDATED: |
| 755 | eventExecutor.execute(() -> processPortUpdate(event.subject())); |
| 756 | break; |
| 757 | case KUBEVIRT_PORT_REMOVED: |
| 758 | eventExecutor.execute(() -> processPortDeletion(event.subject())); |
| 759 | break; |
| 760 | default: |
| 761 | //do nothing |
| 762 | break; |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | private void processPortCreation(KubevirtPort kubevirtPort) { |
| 767 | if (!isRelevantHelper()) { |
| 768 | return; |
| 769 | } |
| 770 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 771 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 772 | if (router == null) { |
| 773 | return; |
| 774 | } |
| 775 | |
| 776 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 777 | |
| 778 | if (gwNode != null) { |
| 779 | IpAddress gatewaySnatIp = getRouterSnatIpAddress(kubevirtRouterService, kubevirtPort.networkId()); |
| 780 | if (gatewaySnatIp == null) { |
| 781 | return; |
| 782 | } |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 783 | setStatefulSnatDownStreamRuleForKubevirtPort(router, gwNode, kubevirtPort, true); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 784 | } |
| 785 | } |
| 786 | |
| 787 | private void processPortUpdate(KubevirtPort kubevirtPort) { |
| 788 | if (!isRelevantHelper()) { |
| 789 | return; |
| 790 | } |
| 791 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 792 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 793 | if (router == null) { |
| 794 | return; |
| 795 | } |
| 796 | |
| 797 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 798 | |
| 799 | if (gwNode != null) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 800 | setStatefulSnatDownStreamRuleForKubevirtPort(router, gwNode, kubevirtPort, true); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 801 | } |
| 802 | } |
| 803 | |
| 804 | private void processPortDeletion(KubevirtPort kubevirtPort) { |
| 805 | if (!isRelevantHelper()) { |
| 806 | return; |
| 807 | } |
| 808 | |
Daniel Park | babde9c | 2021-03-09 13:37:42 +0900 | [diff] [blame] | 809 | KubevirtRouter router = getRouterForKubevirtPort(kubevirtRouterService, kubevirtPort); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 810 | if (router == null) { |
| 811 | return; |
| 812 | } |
| 813 | |
| 814 | KubevirtNode gwNode = gatewayNodeForSpecifiedRouter(kubevirtNodeService, router); |
| 815 | |
| 816 | if (gwNode != null) { |
Daniel Park | f313604 | 2021-03-10 07:49:11 +0900 | [diff] [blame] | 817 | setStatefulSnatDownStreamRuleForKubevirtPort(router, gwNode, kubevirtPort, false); |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 818 | } |
| 819 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 820 | } |
Jian Li | 517597a | 2021-03-22 11:04:52 +0900 | [diff] [blame] | 821 | |
| 822 | private class InternalNodeEventListener implements KubevirtNodeListener { |
| 823 | |
| 824 | @Override |
| 825 | public void event(KubevirtNodeEvent event) { |
| 826 | |
| 827 | } |
| 828 | } |
Daniel Park | 2884b23 | 2021-03-04 18:58:47 +0900 | [diff] [blame] | 829 | } |