Hyunsun Moon | 44aac66 | 2017-02-18 02:07:01 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.openstacknetworking.impl; |
| 18 | |
| 19 | import com.google.common.base.Strings; |
| 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
| 23 | import org.apache.felix.scr.annotations.Reference; |
| 24 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 25 | import org.onlab.packet.Ethernet; |
| 26 | import org.onosproject.core.ApplicationId; |
| 27 | import org.onosproject.core.CoreService; |
| 28 | import org.onosproject.mastership.MastershipService; |
| 29 | import org.onosproject.net.device.DeviceService; |
| 30 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 31 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 32 | import org.onosproject.net.flow.TrafficSelector; |
| 33 | import org.onosproject.net.flow.TrafficTreatment; |
| 34 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 35 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 36 | import org.onosproject.openstacknetworking.api.InstancePort; |
| 37 | import org.onosproject.openstacknetworking.api.InstancePortEvent; |
| 38 | import org.onosproject.openstacknetworking.api.InstancePortListener; |
| 39 | import org.onosproject.openstacknetworking.api.InstancePortService; |
| 40 | import org.onosproject.openstacknetworking.api.OpenstackNetworkService; |
| 41 | import org.onosproject.openstacknode.OpenstackNode; |
| 42 | import org.onosproject.openstacknode.OpenstackNodeService; |
| 43 | import org.openstack4j.model.network.Network; |
| 44 | import org.slf4j.Logger; |
| 45 | |
| 46 | import java.util.concurrent.ExecutorService; |
| 47 | |
| 48 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 49 | import static org.onlab.util.Tools.groupedThreads; |
| 50 | import static org.onosproject.openstacknetworking.api.Constants.*; |
| 51 | import static org.onosproject.openstacknetworking.impl.RulePopulatorUtil.buildExtension; |
| 52 | import static org.slf4j.LoggerFactory.getLogger; |
| 53 | |
| 54 | |
| 55 | /** |
| 56 | * Populates switching flow rules on OVS for the basic connectivity among the |
| 57 | * virtual instances in the same network. |
| 58 | */ |
| 59 | @Component(immediate = true) |
| 60 | public final class OpenstackSwitchingHandler { |
| 61 | |
| 62 | private final Logger log = getLogger(getClass()); |
| 63 | |
| 64 | private static final String ERR_SET_FLOWS = "Failed to set flows for %s: "; |
| 65 | |
| 66 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 67 | protected CoreService coreService; |
| 68 | |
| 69 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 70 | protected MastershipService mastershipService; |
| 71 | |
| 72 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 73 | protected DeviceService deviceService; |
| 74 | |
| 75 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 76 | protected FlowObjectiveService flowObjectiveService; |
| 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | protected InstancePortService instancePortService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected OpenstackNetworkService osNetworkService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 85 | protected OpenstackNodeService osNodeService; |
| 86 | |
| 87 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 88 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 89 | private final InstancePortListener instancePortListener = new InternalInstancePortListener(); |
| 90 | private ApplicationId appId; |
| 91 | |
| 92 | @Activate |
| 93 | protected void activate() { |
| 94 | appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| 95 | instancePortService.addListener(instancePortListener); |
| 96 | |
| 97 | log.info("Started"); |
| 98 | } |
| 99 | |
| 100 | @Deactivate |
| 101 | protected void deactivate() { |
| 102 | instancePortService.removeListener(instancePortListener); |
| 103 | eventExecutor.shutdown(); |
| 104 | |
| 105 | log.info("Stopped"); |
| 106 | } |
| 107 | |
| 108 | private void setNetworkRules(InstancePort instPort, boolean install) { |
| 109 | setTunnelTagFlowRules(instPort, install); |
| 110 | setForwardingRules(instPort, install); |
| 111 | } |
| 112 | |
| 113 | private void setForwardingRules(InstancePort instPort, boolean install) { |
| 114 | // switching rules for the instPorts in the same node |
| 115 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 116 | .matchEthType(Ethernet.TYPE_IPV4) |
| 117 | .matchIPDst(instPort.ipAddress().toIpPrefix()) |
| 118 | .matchTunnelId(getVni(instPort)) |
| 119 | .build(); |
| 120 | |
| 121 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 122 | .setEthDst(instPort.macAddress()) |
| 123 | .setOutput(instPort.portNumber()) |
| 124 | .build(); |
| 125 | |
| 126 | RulePopulatorUtil.setRule( |
| 127 | flowObjectiveService, |
| 128 | appId, |
| 129 | instPort.deviceId(), |
| 130 | selector, |
| 131 | treatment, |
| 132 | ForwardingObjective.Flag.SPECIFIC, |
| 133 | PRIORITY_SWITCHING_RULE, |
| 134 | install); |
| 135 | |
| 136 | // switching rules for the instPorts in the remote node |
| 137 | for (OpenstackNode osNode : osNodeService.completeNodes()) { |
| 138 | if (osNode.intBridge().equals(instPort.deviceId())) { |
| 139 | continue; |
| 140 | } |
| 141 | |
| 142 | TrafficTreatment treatmentToRemote = DefaultTrafficTreatment.builder() |
| 143 | .extension(buildExtension( |
| 144 | deviceService, |
| 145 | osNode.intBridge(), |
| 146 | osNodeService.dataIp(instPort.deviceId()).get().getIp4Address()), |
| 147 | osNode.intBridge()) |
| 148 | .setOutput(osNodeService.tunnelPort(osNode.intBridge()).get()) |
| 149 | .build(); |
| 150 | |
| 151 | RulePopulatorUtil.setRule( |
| 152 | flowObjectiveService, |
| 153 | appId, |
| 154 | osNode.intBridge(), |
| 155 | selector, |
| 156 | treatmentToRemote, |
| 157 | ForwardingObjective.Flag.SPECIFIC, |
| 158 | PRIORITY_SWITCHING_RULE, |
| 159 | install); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | private void setTunnelTagFlowRules(InstancePort instPort, boolean install) { |
| 164 | TrafficSelector selector = DefaultTrafficSelector.builder() |
| 165 | .matchEthType(Ethernet.TYPE_IPV4) |
| 166 | .matchInPort(instPort.portNumber()) |
| 167 | .build(); |
| 168 | |
| 169 | TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 170 | .setTunnelId(getVni(instPort)) |
| 171 | .build(); |
| 172 | |
| 173 | RulePopulatorUtil.setRule( |
| 174 | flowObjectiveService, |
| 175 | appId, |
| 176 | instPort.deviceId(), |
| 177 | selector, |
| 178 | treatment, |
| 179 | ForwardingObjective.Flag.SPECIFIC, |
| 180 | PRIORITY_TUNNEL_TAG_RULE, |
| 181 | install); |
| 182 | } |
| 183 | |
| 184 | private Long getVni(InstancePort instPort) { |
| 185 | Network osNet = osNetworkService.network(instPort.networkId()); |
| 186 | if (osNet == null || Strings.isNullOrEmpty(osNet.getProviderSegID())) { |
| 187 | final String error = String.format( |
| 188 | ERR_SET_FLOWS + "Failed to get VNI for %s", |
| 189 | instPort, osNet.getName()); |
| 190 | throw new IllegalStateException(error); |
| 191 | } |
| 192 | return Long.valueOf(osNet.getProviderSegID()); |
| 193 | } |
| 194 | |
| 195 | private class InternalInstancePortListener implements InstancePortListener { |
| 196 | |
| 197 | @Override |
| 198 | public boolean isRelevant(InstancePortEvent event) { |
| 199 | InstancePort instPort = event.subject(); |
| 200 | return mastershipService.isLocalMaster(instPort.deviceId()); |
| 201 | } |
| 202 | |
| 203 | @Override |
| 204 | public void event(InstancePortEvent event) { |
| 205 | InstancePort instPort = event.subject(); |
| 206 | switch (event.type()) { |
| 207 | case OPENSTACK_INSTANCE_PORT_UPDATED: |
| 208 | case OPENSTACK_INSTANCE_PORT_DETECTED: |
| 209 | eventExecutor.execute(() -> { |
| 210 | log.info("Instance port detected MAC:{} IP:{}", |
| 211 | instPort.macAddress(), |
| 212 | instPort.ipAddress()); |
| 213 | instPortDetected(event.subject()); |
| 214 | }); |
| 215 | break; |
| 216 | case OPENSTACK_INSTANCE_PORT_VANISHED: |
| 217 | eventExecutor.execute(() -> { |
| 218 | log.info("Instance port vanished MAC:{} IP:{}", |
| 219 | instPort.macAddress(), |
| 220 | instPort.ipAddress()); |
| 221 | instPortRemoved(event.subject()); |
| 222 | }); |
| 223 | break; |
| 224 | default: |
| 225 | break; |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | private void instPortDetected(InstancePort instPort) { |
| 230 | setNetworkRules(instPort, true); |
| 231 | // TODO add something else if needed |
| 232 | } |
| 233 | |
| 234 | private void instPortRemoved(InstancePort instPort) { |
| 235 | setNetworkRules(instPort, false); |
| 236 | // TODO add something else if needed |
| 237 | } |
| 238 | } |
| 239 | } |