Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-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 | |
| 17 | package org.onosproject.provider.general.device.impl; |
| 18 | |
| 19 | import com.google.common.annotations.Beta; |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 20 | import com.google.common.collect.Maps; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 21 | import com.google.common.util.concurrent.Striped; |
| 22 | import gnmi.Gnmi.Notification; |
| 23 | import gnmi.Gnmi.Path; |
| 24 | import gnmi.Gnmi.PathElem; |
| 25 | import gnmi.Gnmi.SubscribeRequest; |
| 26 | import gnmi.Gnmi.Subscription; |
| 27 | import gnmi.Gnmi.SubscriptionList; |
| 28 | import gnmi.Gnmi.SubscriptionMode; |
| 29 | import gnmi.Gnmi.Update; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 30 | import org.onosproject.gnmi.api.GnmiClient; |
| 31 | import org.onosproject.gnmi.api.GnmiController; |
| 32 | import org.onosproject.gnmi.api.GnmiEvent; |
| 33 | import org.onosproject.gnmi.api.GnmiEventListener; |
| 34 | import org.onosproject.gnmi.api.GnmiUpdate; |
| 35 | import org.onosproject.gnmi.api.GnmiUtils; |
| 36 | import org.onosproject.mastership.MastershipEvent; |
| 37 | import org.onosproject.mastership.MastershipListener; |
| 38 | import org.onosproject.mastership.MastershipService; |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 39 | import org.onosproject.net.DefaultAnnotations; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 40 | import org.onosproject.net.DeviceId; |
| 41 | import org.onosproject.net.Port; |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 42 | import org.onosproject.net.PortNumber; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 43 | import org.onosproject.net.device.DefaultPortDescription; |
| 44 | import org.onosproject.net.device.DeviceEvent; |
| 45 | import org.onosproject.net.device.DeviceListener; |
| 46 | import org.onosproject.net.device.DeviceProviderService; |
| 47 | import org.onosproject.net.device.DeviceService; |
| 48 | import org.onosproject.net.device.PortDescription; |
| 49 | import org.slf4j.Logger; |
| 50 | import org.slf4j.LoggerFactory; |
| 51 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 52 | import java.util.List; |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 53 | import java.util.Map; |
| 54 | import java.util.Objects; |
| 55 | import java.util.Set; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 56 | import java.util.concurrent.locks.Lock; |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 57 | import java.util.stream.Collectors; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 58 | |
| 59 | /** |
| 60 | * Entity that manages gNMI subscription for devices using OpenConfig models and |
| 61 | * that reports relevant events to the core. |
| 62 | */ |
| 63 | @Beta |
| 64 | class GnmiDeviceStateSubscriber { |
| 65 | |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 66 | private static final String LAST_CHANGE = "last-changed"; |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 67 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 68 | private static Logger log = LoggerFactory.getLogger(GnmiDeviceStateSubscriber.class); |
| 69 | |
| 70 | private final GnmiController gnmiController; |
| 71 | private final DeviceService deviceService; |
| 72 | private final DeviceProviderService providerService; |
| 73 | private final MastershipService mastershipService; |
| 74 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 75 | private final InternalGnmiEventListener gnmiEventListener = new InternalGnmiEventListener(); |
| 76 | private final InternalDeviceListener deviceEventListener = new InternalDeviceListener(); |
| 77 | private final InternalMastershipListener mastershipListener = new InternalMastershipListener(); |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 78 | private final Map<DeviceId, Set<PortNumber>> deviceSubscribed = Maps.newHashMap(); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 79 | |
| 80 | private final Striped<Lock> deviceLocks = Striped.lock(30); |
| 81 | |
| 82 | GnmiDeviceStateSubscriber(GnmiController gnmiController, DeviceService deviceService, |
| 83 | MastershipService mastershipService, |
| 84 | DeviceProviderService providerService) { |
| 85 | this.gnmiController = gnmiController; |
| 86 | this.deviceService = deviceService; |
| 87 | this.mastershipService = mastershipService; |
| 88 | this.providerService = providerService; |
| 89 | } |
| 90 | |
| 91 | public void activate() { |
| 92 | deviceService.addListener(deviceEventListener); |
| 93 | mastershipService.addListener(mastershipListener); |
| 94 | gnmiController.addListener(gnmiEventListener); |
| 95 | // Subscribe to existing devices. |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 96 | deviceService.getDevices().forEach(d -> checkSubscription(d.id())); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | public void deactivate() { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 100 | deviceSubscribed.keySet().forEach(this::unsubscribeIfNeeded); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 101 | deviceService.removeListener(deviceEventListener); |
| 102 | mastershipService.removeListener(mastershipListener); |
| 103 | gnmiController.removeListener(gnmiEventListener); |
| 104 | } |
| 105 | |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 106 | private void checkSubscription(DeviceId deviceId) { |
| 107 | if (gnmiController.getClient(deviceId) == null) { |
| 108 | // Ignore devices for which a gNMI client does not exist. |
| 109 | return; |
| 110 | } |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 111 | deviceLocks.get(deviceId).lock(); |
| 112 | try { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 113 | if (shouldHaveSubscription(deviceId)) { |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 114 | subscribeIfNeeded(deviceId); |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 115 | } else { |
| 116 | unsubscribeIfNeeded(deviceId); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 117 | } |
| 118 | } finally { |
| 119 | deviceLocks.get(deviceId).unlock(); |
| 120 | } |
| 121 | } |
| 122 | |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 123 | private boolean shouldHaveSubscription(DeviceId deviceId) { |
| 124 | return deviceService.getDevice(deviceId) != null |
| 125 | && deviceService.isAvailable(deviceId) |
| 126 | && mastershipService.isLocalMaster(deviceId) |
| 127 | && !deviceService.getPorts(deviceId).isEmpty(); |
| 128 | } |
| 129 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 130 | private Path interfaceOperStatusPath(String interfaceName) { |
| 131 | return Path.newBuilder() |
| 132 | .addElem(PathElem.newBuilder().setName("interfaces").build()) |
| 133 | .addElem(PathElem.newBuilder() |
| 134 | .setName("interface").putKey("name", interfaceName).build()) |
| 135 | .addElem(PathElem.newBuilder().setName("state").build()) |
| 136 | .addElem(PathElem.newBuilder().setName("oper-status").build()) |
| 137 | .build(); |
| 138 | } |
| 139 | |
| 140 | private void unsubscribeIfNeeded(DeviceId deviceId) { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 141 | gnmiController.getClient(deviceId).unsubscribe(); |
| 142 | if (deviceSubscribed.remove(deviceId) != null) { |
| 143 | log.info("Cancelled gNMI subscription for {}", deviceId); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 144 | } |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | private void subscribeIfNeeded(DeviceId deviceId) { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 148 | |
| 149 | Set<PortNumber> ports = deviceService.getPorts(deviceId).stream() |
| 150 | .map(Port::number) |
| 151 | .collect(Collectors.toSet()); |
| 152 | |
| 153 | if (Objects.equals(ports, deviceSubscribed.get(deviceId))) { |
| 154 | // Already subscribed for the same ports. |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 155 | return; |
| 156 | } |
| 157 | |
| 158 | GnmiClient client = gnmiController.getClient(deviceId); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 159 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 160 | SubscriptionList.Builder subscriptionList = SubscriptionList.newBuilder(); |
| 161 | subscriptionList.setMode(SubscriptionList.Mode.STREAM); |
| 162 | subscriptionList.setUpdatesOnly(true); |
| 163 | |
| 164 | ports.forEach(port -> { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 165 | String portName = port.name(); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 166 | // Subscribe /interface/interface[name=port-name]/state/oper-status |
| 167 | Path subscribePath = interfaceOperStatusPath(portName); |
| 168 | Subscription interfaceOperStatusSub = |
| 169 | Subscription.newBuilder() |
| 170 | .setPath(subscribePath) |
| 171 | .setMode(SubscriptionMode.ON_CHANGE) |
| 172 | .build(); |
| 173 | // TODO: more state subscription |
| 174 | subscriptionList.addSubscription(interfaceOperStatusSub); |
| 175 | }); |
| 176 | |
| 177 | SubscribeRequest subscribeRequest = SubscribeRequest.newBuilder() |
| 178 | .setSubscribe(subscriptionList.build()) |
| 179 | .build(); |
| 180 | |
| 181 | client.subscribe(subscribeRequest); |
| 182 | |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 183 | log.info("Started gNMI subscription for {} ports on {}", ports.size(), deviceId); |
| 184 | |
| 185 | deviceSubscribed.put(deviceId, ports); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | private void handleGnmiUpdate(GnmiUpdate eventSubject) { |
| 189 | Notification notification = eventSubject.update(); |
| 190 | if (notification == null) { |
| 191 | log.warn("Cannot handle gNMI event without update data, abort"); |
| 192 | log.debug("gNMI update:\n{}", eventSubject); |
| 193 | return; |
| 194 | } |
| 195 | |
| 196 | List<Update> updateList = notification.getUpdateList(); |
| 197 | updateList.forEach(update -> { |
| 198 | Path path = update.getPath(); |
| 199 | PathElem lastElem = path.getElem(path.getElemCount() - 1); |
| 200 | |
| 201 | // Use last element to identify which state updated |
| 202 | if ("oper-status".equals(lastElem.getName())) { |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 203 | handleOperStatusUpdate(eventSubject.deviceId(), update, |
| 204 | notification.getTimestamp()); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 205 | } else { |
| 206 | log.debug("Unrecognized update {}", GnmiUtils.pathToString(path)); |
| 207 | } |
| 208 | }); |
| 209 | } |
| 210 | |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 211 | private void handleOperStatusUpdate(DeviceId deviceId, Update update, long timestamp) { |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 212 | Path path = update.getPath(); |
| 213 | // first element should be "interface" |
| 214 | String interfaceName = path.getElem(1).getKeyOrDefault("name", null); |
| 215 | if (interfaceName == null) { |
| 216 | log.error("No interface present in gNMI update, abort"); |
| 217 | log.debug("gNMI update:\n{}", update); |
| 218 | return; |
| 219 | } |
| 220 | |
| 221 | List<Port> portsFromDevice = deviceService.getPorts(deviceId); |
| 222 | portsFromDevice.forEach(port -> { |
| 223 | if (!port.number().name().equals(interfaceName)) { |
| 224 | return; |
| 225 | } |
| 226 | |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 227 | DefaultAnnotations portAnnotations = DefaultAnnotations.builder() |
| 228 | .putAll(port.annotations()) |
| 229 | .set(LAST_CHANGE, String.valueOf(timestamp)) |
| 230 | .build(); |
| 231 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 232 | // Port/Interface name is identical in OpenConfig model, but not in ONOS |
| 233 | // This might cause some problem if we use one name to different port |
| 234 | PortDescription portDescription = DefaultPortDescription.builder() |
| 235 | .portSpeed(port.portSpeed()) |
| 236 | .withPortNumber(port.number()) |
| 237 | .isEnabled(update.getVal().getStringVal().equals("UP")) |
| 238 | .type(port.type()) |
Yi Tseng | 59d5f3e | 2018-11-27 23:09:41 -0800 | [diff] [blame] | 239 | .annotations(portAnnotations) |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 240 | .build(); |
| 241 | providerService.portStatusChanged(deviceId, portDescription); |
| 242 | }); |
| 243 | } |
| 244 | |
| 245 | class InternalGnmiEventListener implements GnmiEventListener { |
| 246 | |
| 247 | @Override |
| 248 | public void event(GnmiEvent event) { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 249 | if (!deviceSubscribed.containsKey(event.subject().deviceId())) { |
| 250 | log.warn("Received gNMI event from {}, but we did'nt expect to " + |
| 251 | "be subscribed to it! Discarding event...", |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 252 | event.subject().deviceId()); |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 253 | return; |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 254 | } |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 255 | |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 256 | log.debug("Received gNMI event {}", event.toString()); |
| 257 | if (event.type() == GnmiEvent.Type.UPDATE) { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 258 | handleGnmiUpdate((GnmiUpdate) event.subject()); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 259 | } else { |
| 260 | log.debug("Unsupported gNMI event type: {}", event.type()); |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | class InternalMastershipListener implements MastershipListener { |
| 266 | |
| 267 | @Override |
| 268 | public void event(MastershipEvent event) { |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 269 | checkSubscription(event.subject()); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 270 | } |
| 271 | } |
| 272 | |
| 273 | class InternalDeviceListener implements DeviceListener { |
| 274 | |
| 275 | @Override |
| 276 | public void event(DeviceEvent event) { |
| 277 | switch (event.type()) { |
| 278 | case DEVICE_ADDED: |
| 279 | case DEVICE_AVAILABILITY_CHANGED: |
| 280 | case DEVICE_UPDATED: |
| 281 | case DEVICE_REMOVED: |
Carmelo Cascone | ab5d41e | 2019-03-06 18:02:34 -0800 | [diff] [blame^] | 282 | case PORT_ADDED: |
| 283 | case PORT_REMOVED: |
| 284 | checkSubscription(event.subject().id()); |
Yi Tseng | e616d75 | 2018-11-27 10:53:27 -0800 | [diff] [blame] | 285 | break; |
| 286 | default: |
| 287 | break; |
| 288 | } |
| 289 | } |
| 290 | } |
| 291 | } |