Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-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.snmp.alarm.impl; |
| 18 | |
| 19 | import com.google.common.collect.ImmutableList; |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 20 | import org.osgi.service.component.annotations.Activate; |
| 21 | import org.osgi.service.component.annotations.Component; |
| 22 | import org.osgi.service.component.annotations.Deactivate; |
| 23 | import org.osgi.service.component.annotations.Modified; |
| 24 | import org.osgi.service.component.annotations.Reference; |
| 25 | import org.osgi.service.component.annotations.ReferenceCardinality; |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 26 | import org.onlab.packet.IpAddress; |
| 27 | import org.onosproject.cluster.ClusterService; |
| 28 | import org.onosproject.core.ApplicationId; |
| 29 | import org.onosproject.core.CoreService; |
Thomas Vachuska | 52f2cd1 | 2018-11-08 21:20:04 -0800 | [diff] [blame^] | 30 | import org.onosproject.alarm.Alarm; |
| 31 | import org.onosproject.alarm.AlarmProvider; |
| 32 | import org.onosproject.alarm.AlarmProviderRegistry; |
| 33 | import org.onosproject.alarm.AlarmProviderService; |
| 34 | import org.onosproject.alarm.DeviceAlarmConfig; |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 35 | import org.onosproject.mastership.MastershipEvent; |
| 36 | import org.onosproject.mastership.MastershipListener; |
| 37 | import org.onosproject.mastership.MastershipService; |
| 38 | import org.onosproject.net.DeviceId; |
| 39 | import org.onosproject.net.device.DeviceEvent; |
| 40 | import org.onosproject.net.device.DeviceListener; |
| 41 | import org.onosproject.net.device.DeviceService; |
| 42 | import org.onosproject.net.driver.DefaultDriverData; |
| 43 | import org.onosproject.net.driver.DefaultDriverHandler; |
| 44 | import org.onosproject.net.driver.Driver; |
| 45 | import org.onosproject.net.driver.DriverData; |
| 46 | import org.onosproject.net.driver.DriverService; |
| 47 | import org.onosproject.net.provider.AbstractProvider; |
| 48 | import org.onosproject.net.provider.ProviderId; |
| 49 | import org.onosproject.snmp.SnmpController; |
| 50 | import org.onosproject.snmp.SnmpDevice; |
| 51 | import org.osgi.service.component.ComponentContext; |
| 52 | import org.slf4j.Logger; |
| 53 | import org.snmp4j.CommandResponder; |
| 54 | import org.snmp4j.CommandResponderEvent; |
| 55 | import org.snmp4j.Snmp; |
| 56 | import org.snmp4j.TransportMapping; |
| 57 | import org.snmp4j.smi.Address; |
| 58 | import org.snmp4j.smi.GenericAddress; |
| 59 | import org.snmp4j.smi.TcpAddress; |
| 60 | import org.snmp4j.smi.UdpAddress; |
| 61 | import org.snmp4j.transport.DefaultTcpTransportMapping; |
| 62 | import org.snmp4j.transport.DefaultUdpTransportMapping; |
| 63 | |
| 64 | import java.io.IOException; |
| 65 | import java.net.URI; |
| 66 | import java.util.HashMap; |
| 67 | import java.util.Map; |
| 68 | import java.util.Set; |
| 69 | |
| 70 | import static org.slf4j.LoggerFactory.getLogger; |
| 71 | |
| 72 | /** |
| 73 | * Provider which will listen for traps generated SNMP devices and configure |
| 74 | * the devices with the Ip and Protocol fo the end point to send traps to. |
| 75 | */ |
| 76 | @Component(immediate = true) |
| 77 | public class SnmpAlarmProvider extends AbstractProvider |
| 78 | implements AlarmProvider { |
| 79 | |
| 80 | public static final String COLON = ":"; |
| 81 | private final Logger log = getLogger(SnmpAlarmProvider.class); |
| 82 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 83 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 84 | protected SnmpController controller; |
| 85 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 86 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 87 | protected AlarmProviderRegistry providerRegistry; |
| 88 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 89 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 90 | protected DriverService driverService; |
| 91 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 92 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 93 | protected MastershipService mastershipService; |
| 94 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 95 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 96 | protected DeviceService deviceService; |
| 97 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 98 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 99 | protected CoreService coreService; |
| 100 | |
Ray Milkey | d84f89b | 2018-08-17 14:54:17 -0700 | [diff] [blame] | 101 | @Reference(cardinality = ReferenceCardinality.MANDATORY) |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 102 | protected ClusterService clusterService; |
| 103 | |
| 104 | private static final String APP_NAME = "org.onosproject.snmp"; |
| 105 | private static final String SCHEME = "snmp"; |
| 106 | |
| 107 | protected AlarmProviderService providerService; |
| 108 | |
| 109 | protected ApplicationId appId; |
| 110 | |
| 111 | protected final DeviceListener deviceListener = new InternalDeviceListener(); |
| 112 | |
| 113 | protected final MastershipListener mastershipListener = new InternalMastershipListener(); |
| 114 | |
| 115 | protected final CommandResponder internalCommandResponder = new InternalCommandResponder(); |
| 116 | |
| 117 | private IpAddress localIp; |
| 118 | |
| 119 | private final Map<Integer, Snmp> portSessionMap = new HashMap<>(); |
| 120 | |
| 121 | private Snmp snmp; |
| 122 | |
| 123 | |
| 124 | /** |
| 125 | * Creates a provider with the supplier identifier. |
| 126 | */ |
| 127 | public SnmpAlarmProvider() { |
| 128 | super(new ProviderId("snmp", "org.onosproject.provider.alarm")); |
| 129 | } |
| 130 | |
| 131 | @Activate |
| 132 | public void activate(ComponentContext context) { |
| 133 | |
| 134 | providerService = providerRegistry.register(this); |
| 135 | appId = coreService.registerApplication(APP_NAME); |
| 136 | deviceService.addListener(deviceListener); |
| 137 | mastershipService.addListener(mastershipListener); |
| 138 | controller.getDevices().stream().forEach(d -> { |
| 139 | triggerProbe(d.deviceId()); |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 140 | }); |
| 141 | localIp = clusterService.getLocalNode().ip(); |
| 142 | log.info("Started"); |
| 143 | } |
| 144 | |
| 145 | @Deactivate |
| 146 | public void deactivate(ComponentContext context) { |
| 147 | for (Map.Entry<Integer, Snmp> entry : portSessionMap.entrySet()) { |
| 148 | try { |
| 149 | entry.getValue().close(); |
| 150 | } catch (IOException e) { |
| 151 | log.warn("Can't close SNMP notification session on Ip {} and Port {}", |
| 152 | localIp, entry.getKey(), e); |
| 153 | } |
| 154 | } |
| 155 | mastershipService.addListener(mastershipListener); |
| 156 | deviceService.removeListener(deviceListener); |
| 157 | providerRegistry.unregister(this); |
| 158 | providerService = null; |
| 159 | log.info("Stopped"); |
| 160 | } |
| 161 | |
| 162 | @Modified |
| 163 | public void modified() { |
| 164 | log.info("Modified"); |
| 165 | } |
| 166 | |
| 167 | @Override |
| 168 | public void triggerProbe(DeviceId deviceId) { |
| 169 | requestTraps(deviceId); |
Laszlo Papp | 10f0d51 | 2018-06-18 15:35:51 +0100 | [diff] [blame] | 170 | configureListeningConnection(controller.getDevice(deviceId)); |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | private void configureListeningConnection(SnmpDevice device) { |
| 174 | int notificationPort = device.getNotificationPort(); |
| 175 | if (notificationPort == 0 || portSessionMap.containsKey(notificationPort)) { |
| 176 | return; |
| 177 | } |
| 178 | String protocol = device.getProtocol(); |
| 179 | try { |
| 180 | Address listenAddress = GenericAddress.parse(protocol + |
| 181 | ":" + localIp.toString() + |
| 182 | "/" + notificationPort); |
| 183 | TransportMapping tm; |
| 184 | if (protocol == GenericAddress.TYPE_TCP) { |
| 185 | tm = new DefaultTcpTransportMapping((TcpAddress) listenAddress); |
| 186 | } else { |
| 187 | tm = new DefaultUdpTransportMapping((UdpAddress) listenAddress); |
| 188 | } |
| 189 | snmp = new Snmp(tm); |
| 190 | snmp.addCommandResponder(internalCommandResponder); |
| 191 | snmp.listen(); |
| 192 | log.info("Initiated SNMP notification connection on Ip {} and Port {}", |
| 193 | localIp.toString(), notificationPort); |
| 194 | } catch (IOException e) { |
| 195 | log.error("Can't initiate SNMP transport on Protocol {}, Ip {} and Port {}", |
| 196 | protocol, localIp, notificationPort, e); |
| 197 | return; |
| 198 | } |
| 199 | |
| 200 | portSessionMap.put(notificationPort, snmp); |
| 201 | } |
| 202 | |
| 203 | private boolean requestTraps(DeviceId deviceId) { |
| 204 | SnmpDevice device = controller.getDevice(deviceId); |
| 205 | DeviceAlarmConfig alarmTranslator = getAlarmTranslator(device); |
| 206 | if (alarmTranslator != null) { |
| 207 | return alarmTranslator.configureDevice(localIp, device.getNotificationPort(), |
| 208 | device.getNotificationProtocol()); |
| 209 | } else { |
| 210 | log.warn("Device {} does not support alarms.", deviceId); |
| 211 | return false; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | private DeviceAlarmConfig getAlarmTranslator(SnmpDevice device) { |
| 216 | Driver deviceDriver = driverService.getDriver(device.deviceId()); |
| 217 | if (deviceDriver != null && deviceDriver.hasBehaviour(DeviceAlarmConfig.class)) { |
| 218 | DriverData driverData = new DefaultDriverData(deviceDriver, device.deviceId()); |
| 219 | DeviceAlarmConfig alarmTranslator = deviceDriver |
| 220 | .createBehaviour(driverData, DeviceAlarmConfig.class); |
| 221 | alarmTranslator.setHandler(new DefaultDriverHandler(driverData)); |
| 222 | return alarmTranslator; |
| 223 | } else { |
| 224 | log.warn("Device does not support alarm {}", device.deviceId()); |
| 225 | } |
| 226 | return null; |
| 227 | } |
| 228 | |
| 229 | private class InternalCommandResponder implements CommandResponder { |
| 230 | @Override |
| 231 | public void processPdu(CommandResponderEvent event) { |
| 232 | try { |
| 233 | log.debug("received trap {}", event); |
| 234 | String[] deviceInfo = event.getPeerAddress().toString().split("/"); |
| 235 | |
| 236 | //TODO This should be done via device service. |
| 237 | //searching only for Ip since the port from which the trap is sent |
| 238 | // could be different from the one used for SNMP |
| 239 | SnmpDevice device = controller.getDevice(new URI(deviceInfo[0])); |
| 240 | if (device != null) { |
| 241 | DeviceId deviceId = DeviceId.deviceId(SCHEME + COLON + deviceInfo[0] |
| 242 | + COLON + device.getSnmpPort()); |
| 243 | DeviceAlarmConfig alarmTranslator = getAlarmTranslator(controller.getDevice(deviceId)); |
| 244 | if (alarmTranslator != null) { |
| 245 | Set<Alarm> alarms = alarmTranslator.translateAlarms(ImmutableList.of(event)); |
| 246 | providerService.updateAlarmList(deviceId, alarms); |
| 247 | } else { |
| 248 | log.warn("Device {} does not support alarm", device.deviceId()); |
| 249 | } |
| 250 | } else { |
| 251 | log.error("Device {} does not exist in ONOS SNMP subsystem", deviceInfo[0]); |
| 252 | } |
| 253 | //Catching generic exception due to otherwise hidden URISyntax |
| 254 | } catch (Exception e) { |
| 255 | log.error("Exception while processing PDU {}", e); |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | private class InternalDeviceListener implements DeviceListener { |
| 261 | |
| 262 | @Override |
| 263 | public void event(DeviceEvent event) { |
| 264 | DeviceId deviceId = event.subject().id(); |
| 265 | switch (event.type()) { |
| 266 | case DEVICE_ADDED: |
| 267 | triggerProbe(deviceId); |
Ray Milkey | 93a5d39 | 2018-06-05 11:29:12 -0700 | [diff] [blame] | 268 | break; |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 269 | case DEVICE_UPDATED: |
| 270 | triggerProbe(deviceId); |
Ray Milkey | 93a5d39 | 2018-06-05 11:29:12 -0700 | [diff] [blame] | 271 | break; |
Laszlo Papp | 9655b18 | 2017-01-31 13:01:45 -0800 | [diff] [blame] | 272 | default: |
| 273 | break; |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | @Override |
| 278 | public boolean isRelevant(DeviceEvent event) { |
| 279 | return event.subject().id().toString().startsWith(SCHEME) |
| 280 | && mastershipService.isLocalMaster(event.subject().id()); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | private class InternalMastershipListener implements MastershipListener { |
| 285 | |
| 286 | @Override |
| 287 | public void event(MastershipEvent event) { |
| 288 | triggerProbe(event.subject()); |
| 289 | } |
| 290 | |
| 291 | @Override |
| 292 | public boolean isRelevant(MastershipEvent event) { |
| 293 | return event.subject().toString().startsWith(SCHEME) |
| 294 | && mastershipService.isLocalMaster(event.subject()); |
| 295 | } |
| 296 | } |
| 297 | } |