Jian Li | 6211694 | 2019-09-03 23:10:20 +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.openstacknetworking.impl; |
| 17 | |
| 18 | import org.onlab.packet.Ethernet; |
| 19 | import org.onosproject.cluster.ClusterService; |
| 20 | import org.onosproject.cluster.LeadershipService; |
| 21 | import org.onosproject.core.ApplicationId; |
| 22 | import org.onosproject.core.CoreService; |
| 23 | import org.onosproject.mastership.MastershipService; |
| 24 | import org.onosproject.net.DeviceId; |
| 25 | import org.onosproject.net.Port; |
| 26 | import org.onosproject.net.PortNumber; |
| 27 | import org.onosproject.net.device.DeviceEvent; |
| 28 | import org.onosproject.net.device.DeviceListener; |
| 29 | import org.onosproject.net.device.DeviceService; |
| 30 | import org.onosproject.net.driver.DriverService; |
| 31 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 32 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 33 | import org.onosproject.net.flow.TrafficSelector; |
| 34 | import org.onosproject.net.flow.TrafficTreatment; |
| 35 | import org.onosproject.openstacknetworking.api.OpenstackFlowRuleService; |
| 36 | import org.onosproject.openstacknode.api.OpenstackNode; |
| 37 | import org.onosproject.openstacknode.api.OpenstackNodeService; |
| 38 | import org.osgi.service.component.annotations.Activate; |
| 39 | import org.osgi.service.component.annotations.Component; |
| 40 | import org.osgi.service.component.annotations.Deactivate; |
| 41 | import org.osgi.service.component.annotations.Reference; |
| 42 | import org.osgi.service.component.annotations.ReferenceCardinality; |
| 43 | import org.slf4j.Logger; |
| 44 | |
| 45 | import java.util.Set; |
| 46 | import java.util.concurrent.ExecutorService; |
| 47 | import java.util.stream.Collectors; |
| 48 | |
| 49 | import static java.util.concurrent.Executors.newSingleThreadExecutor; |
| 50 | import static org.onlab.util.Tools.groupedThreads; |
| 51 | import static org.onosproject.net.AnnotationKeys.PORT_NAME; |
| 52 | import static org.onosproject.openstacknetworking.api.Constants.DHCP_TABLE; |
| 53 | import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID; |
| 54 | import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_FLAT_JUMP_UPSTREAM_RULE; |
| 55 | import static org.onosproject.openstacknetworking.api.Constants.STAT_FLAT_OUTBOUND_TABLE; |
| 56 | import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.structurePortName; |
| 57 | import static org.onosproject.openstacknode.api.Constants.INTEGRATION_TO_PHYSICAL_PREFIX; |
| 58 | import static org.slf4j.LoggerFactory.getLogger; |
| 59 | |
| 60 | /** |
| 61 | * Populates switching flow rules on OVS for the physical interfaces. |
| 62 | */ |
| 63 | @Component(immediate = true) |
| 64 | public class OpenstackSwitchingPhysicalHandler { |
| 65 | |
| 66 | private final Logger log = getLogger(getClass()); |
| 67 | |
| 68 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 69 | protected CoreService coreService; |
| 70 | |
| 71 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 72 | protected MastershipService mastershipService; |
| 73 | |
| 74 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 75 | protected DeviceService deviceService; |
| 76 | |
| 77 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 78 | protected DriverService driverService; |
| 79 | |
| 80 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 81 | protected ClusterService clusterService; |
| 82 | |
| 83 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 84 | protected LeadershipService leadershipService; |
| 85 | |
| 86 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 87 | protected OpenstackFlowRuleService osFlowRuleService; |
| 88 | |
| 89 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| 90 | protected OpenstackNodeService osNodeService; |
| 91 | |
| 92 | private final ExecutorService eventExecutor = newSingleThreadExecutor( |
| 93 | groupedThreads(this.getClass().getSimpleName(), "event-handler")); |
| 94 | private final InternalDeviceListener internalDeviceListener = new InternalDeviceListener(); |
| 95 | |
| 96 | private ApplicationId appId; |
| 97 | |
| 98 | @Activate |
| 99 | protected void activate() { |
| 100 | appId = coreService.registerApplication(OPENSTACK_NETWORKING_APP_ID); |
| 101 | deviceService.addListener(internalDeviceListener); |
| 102 | |
| 103 | log.info("Started"); |
| 104 | } |
| 105 | |
| 106 | @Deactivate |
| 107 | protected void deactivate() { |
| 108 | eventExecutor.shutdown(); |
| 109 | deviceService.removeListener(internalDeviceListener); |
| 110 | |
| 111 | log.info("Stopped"); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * An internal device listener which listens the port events generated from |
| 116 | * OVS integration bridge. |
| 117 | */ |
| 118 | private class InternalDeviceListener implements DeviceListener { |
| 119 | |
| 120 | @Override |
| 121 | public boolean isRelevant(DeviceEvent event) { |
| 122 | Port port = event.port(); |
| 123 | if (port == null) { |
| 124 | return false; |
| 125 | } |
| 126 | |
| 127 | OpenstackNode osNode = osNodeService.node(event.subject().id()); |
| 128 | if (osNode == null) { |
| 129 | return false; |
| 130 | } |
| 131 | |
| 132 | Set<String> intPatchPorts = osNode.phyIntfs().stream() |
| 133 | .map(pi -> structurePortName(INTEGRATION_TO_PHYSICAL_PREFIX |
| 134 | + pi.network())).collect(Collectors.toSet()); |
| 135 | String portName = port.annotations().value(PORT_NAME); |
| 136 | |
| 137 | return intPatchPorts.contains(portName); |
| 138 | } |
| 139 | |
| 140 | private boolean isRelevantHelper(DeviceEvent event) { |
| 141 | return mastershipService.isLocalMaster(event.subject().id()); |
| 142 | } |
| 143 | |
| 144 | @Override |
| 145 | public void event(DeviceEvent event) { |
| 146 | log.info("Device event occurred with type {}", event.type()); |
| 147 | |
| 148 | switch (event.type()) { |
| 149 | case PORT_ADDED: |
| 150 | case PORT_UPDATED: |
| 151 | eventExecutor.execute(() -> processPortAddition(event)); |
| 152 | break; |
| 153 | case PORT_REMOVED: |
| 154 | eventExecutor.execute(() -> processPortRemoval(event)); |
| 155 | break; |
| 156 | default: |
| 157 | break; |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | private void processPortAddition(DeviceEvent event) { |
| 162 | if (!isRelevantHelper(event)) { |
| 163 | return; |
| 164 | } |
| 165 | |
| 166 | setFlatJumpRulesForPatchPort(event.subject().id(), |
| 167 | event.port().number(), true); |
| 168 | } |
| 169 | |
| 170 | private void processPortRemoval(DeviceEvent event) { |
| 171 | if (!isRelevantHelper(event)) { |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | setFlatJumpRulesForPatchPort(event.subject().id(), |
| 176 | event.port().number(), false); |
| 177 | } |
| 178 | |
| 179 | private void setFlatJumpRulesForPatchPort(DeviceId deviceId, |
| 180 | PortNumber portNumber, |
| 181 | boolean install) { |
| 182 | setFlatJumpRuleForPatchPort(deviceId, portNumber, |
| 183 | Ethernet.TYPE_IPV4, install); |
| 184 | setFlatJumpRuleForPatchPort(deviceId, portNumber, |
| 185 | Ethernet.TYPE_ARP, install); |
| 186 | } |
| 187 | |
| 188 | private void setFlatJumpRuleForPatchPort(DeviceId deviceId, |
| 189 | PortNumber portNumber, |
| 190 | short ethType, boolean install) { |
| 191 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 192 | selector.matchInPort(portNumber) |
| 193 | .matchEthType(ethType); |
| 194 | |
| 195 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 196 | treatment.transition(STAT_FLAT_OUTBOUND_TABLE); |
| 197 | |
| 198 | osFlowRuleService.setRule( |
| 199 | appId, |
| 200 | deviceId, |
| 201 | selector.build(), |
| 202 | treatment.build(), |
| 203 | PRIORITY_FLAT_JUMP_UPSTREAM_RULE, |
| 204 | DHCP_TABLE, |
| 205 | install); |
| 206 | } |
| 207 | } |
| 208 | } |