Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [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.incubator.net.virtual.impl; |
| 18 | |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 19 | import com.google.common.collect.ArrayListMultimap; |
| 20 | import com.google.common.collect.Iterables; |
| 21 | import com.google.common.collect.Lists; |
| 22 | import com.google.common.collect.Maps; |
| 23 | import com.google.common.collect.Multimap; |
| 24 | import com.google.common.collect.Sets; |
| 25 | import org.onlab.osgi.ServiceDirectory; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 26 | import org.onosproject.core.ApplicationId; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 27 | import org.onosproject.core.CoreService; |
| 28 | import org.onosproject.core.IdGenerator; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 29 | import org.onosproject.event.AbstractListenerManager; |
| 30 | import org.onosproject.incubator.net.virtual.VirtualNetwork; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 31 | import org.onosproject.incubator.net.virtual.VirtualNetworkAdminService; |
| 32 | import org.onosproject.incubator.net.virtual.VirtualNetworkFlowRuleStore; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 33 | import org.onosproject.incubator.net.virtual.VnetService; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 34 | import org.onosproject.incubator.net.virtual.provider.AbstractVirtualProviderService; |
| 35 | import org.onosproject.incubator.net.virtual.provider.VirtualFlowRuleProvider; |
| 36 | import org.onosproject.incubator.net.virtual.provider.VirtualFlowRuleProviderService; |
| 37 | import org.onosproject.incubator.net.virtual.provider.VirtualProviderRegistryService; |
| 38 | import org.onosproject.net.Device; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 39 | import org.onosproject.net.DeviceId; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 40 | import org.onosproject.net.device.DeviceService; |
| 41 | import org.onosproject.net.flow.CompletedBatchOperation; |
| 42 | import org.onosproject.net.flow.DefaultFlowEntry; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 43 | import org.onosproject.net.flow.FlowEntry; |
| 44 | import org.onosproject.net.flow.FlowRule; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 45 | import org.onosproject.net.flow.FlowRuleBatchEntry; |
| 46 | import org.onosproject.net.flow.FlowRuleBatchEvent; |
| 47 | import org.onosproject.net.flow.FlowRuleBatchOperation; |
| 48 | import org.onosproject.net.flow.FlowRuleBatchRequest; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 49 | import org.onosproject.net.flow.FlowRuleEvent; |
| 50 | import org.onosproject.net.flow.FlowRuleListener; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 51 | import org.onosproject.net.flow.FlowRuleOperation; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 52 | import org.onosproject.net.flow.FlowRuleOperations; |
| 53 | import org.onosproject.net.flow.FlowRuleService; |
| 54 | import org.onosproject.net.flow.TableStatisticsEntry; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 55 | import org.slf4j.Logger; |
| 56 | import org.slf4j.LoggerFactory; |
| 57 | |
| 58 | import java.util.Collections; |
| 59 | import java.util.HashSet; |
| 60 | import java.util.List; |
| 61 | import java.util.Map; |
| 62 | import java.util.Set; |
| 63 | import java.util.concurrent.ConcurrentHashMap; |
| 64 | import java.util.concurrent.ExecutorService; |
| 65 | import java.util.concurrent.Executors; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 66 | |
| 67 | import static com.google.common.base.Preconditions.checkNotNull; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 68 | import static org.onlab.util.Tools.groupedThreads; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 69 | |
| 70 | /** |
| 71 | * Flow rule service implementation built on the virtual network service. |
| 72 | */ |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 73 | public class VirtualNetworkFlowRuleManager |
| 74 | extends AbstractListenerManager<FlowRuleEvent, FlowRuleListener> |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 75 | implements FlowRuleService, VnetService { |
| 76 | |
| 77 | private static final String NETWORK_NULL = "Network ID cannot be null"; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 78 | private static final String VIRTUAL_FLOW_OP_TOPIC = "virtual-flow-ops-ids"; |
| 79 | private static final String THREAD_GROUP_NAME = "onos/virtual-flowservice"; |
| 80 | private static final String DEVICE_INSTALLER_PATTERN = "device-installer-%d"; |
| 81 | private static final String OPERATION_PATTERN = "operations-%d"; |
| 82 | public static final String FLOW_RULE_NULL = "FlowRule cannot be null"; |
| 83 | |
| 84 | private final Logger log = LoggerFactory.getLogger(getClass()); |
| 85 | |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 86 | private final VirtualNetwork network; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 87 | private final VirtualNetworkAdminService manager; |
| 88 | private final VirtualNetworkFlowRuleStore store; |
| 89 | private final DeviceService deviceService; |
| 90 | |
| 91 | protected ExecutorService deviceInstallers = |
| 92 | Executors.newFixedThreadPool(32, |
| 93 | groupedThreads(THREAD_GROUP_NAME, |
| 94 | DEVICE_INSTALLER_PATTERN, log)); |
| 95 | protected ExecutorService operationsService = |
| 96 | Executors.newFixedThreadPool(32, |
| 97 | groupedThreads(THREAD_GROUP_NAME, |
| 98 | OPERATION_PATTERN, log)); |
| 99 | private IdGenerator idGenerator; |
| 100 | |
| 101 | private final Map<Long, FlowOperationsProcessor> pendingFlowOperations = new ConcurrentHashMap<>(); |
| 102 | |
| 103 | private VirtualProviderRegistryService providerRegistryService = null; |
| 104 | private InternalFlowRuleProviderService innerProviderService = null; |
| 105 | |
| 106 | |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 107 | |
| 108 | /** |
| 109 | * Creates a new VirtualNetworkFlowRuleService object. |
| 110 | * |
| 111 | * @param virtualNetworkManager virtual network manager service |
| 112 | * @param network virtual network |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 113 | * @param serviceDirectory service directory |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 114 | */ |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 115 | public VirtualNetworkFlowRuleManager(VirtualNetworkAdminService virtualNetworkManager, |
| 116 | VirtualNetwork network, |
| 117 | ServiceDirectory serviceDirectory) { |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 118 | checkNotNull(network, NETWORK_NULL); |
| 119 | this.network = network; |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 120 | |
| 121 | manager = virtualNetworkManager; |
| 122 | store = serviceDirectory.get(VirtualNetworkFlowRuleStore.class); |
| 123 | idGenerator = serviceDirectory.get(CoreService.class) |
| 124 | .getIdGenerator(VIRTUAL_FLOW_OP_TOPIC + network.id().toString()); |
| 125 | |
| 126 | providerRegistryService = |
| 127 | serviceDirectory.get(VirtualProviderRegistryService.class); |
| 128 | innerProviderService = new InternalFlowRuleProviderService(); |
| 129 | providerRegistryService.registerProviderService(network.id(), innerProviderService); |
| 130 | |
| 131 | this.deviceService = manager.get(network.id(), DeviceService.class); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public int getFlowRuleCount() { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 136 | return store.getFlowRuleCount(network.id()); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public Iterable<FlowEntry> getFlowEntries(DeviceId deviceId) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 141 | return store.getFlowEntries(network.id(), deviceId); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | @Override |
| 145 | public void applyFlowRules(FlowRule... flowRules) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 146 | FlowRuleOperations.Builder builder = FlowRuleOperations.builder(); |
| 147 | for (FlowRule flowRule : flowRules) { |
| 148 | builder.add(flowRule); |
| 149 | } |
| 150 | apply(builder.build()); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | @Override |
| 154 | public void purgeFlowRules(DeviceId deviceId) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 155 | store.purgeFlowRule(network.id(), deviceId); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public void removeFlowRules(FlowRule... flowRules) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 160 | FlowRuleOperations.Builder builder = FlowRuleOperations.builder(); |
| 161 | for (FlowRule flowRule : flowRules) { |
| 162 | builder.remove(flowRule); |
| 163 | } |
| 164 | apply(builder.build()); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | @Override |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 168 | public void removeFlowRulesById(ApplicationId id) { |
| 169 | removeFlowRules(Iterables.toArray(getFlowRulesById(id), FlowRule.class)); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | @Override |
| 173 | public Iterable<FlowRule> getFlowRulesById(ApplicationId id) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 174 | DeviceService deviceService = manager.get(network.id(), DeviceService.class); |
| 175 | |
| 176 | Set<FlowRule> flowEntries = Sets.newHashSet(); |
| 177 | for (Device d : deviceService.getDevices()) { |
| 178 | for (FlowEntry flowEntry : store.getFlowEntries(network.id(), d.id())) { |
| 179 | if (flowEntry.appId() == id.id()) { |
| 180 | flowEntries.add(flowEntry); |
| 181 | } |
| 182 | } |
| 183 | } |
| 184 | return flowEntries; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | @Override |
| 188 | public Iterable<FlowEntry> getFlowEntriesById(ApplicationId id) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 189 | DeviceService deviceService = manager.get(network.id(), DeviceService.class); |
| 190 | |
| 191 | Set<FlowEntry> flowEntries = Sets.newHashSet(); |
| 192 | for (Device d : deviceService.getDevices()) { |
| 193 | for (FlowEntry flowEntry : store.getFlowEntries(network.id(), d.id())) { |
| 194 | if (flowEntry.appId() == id.id()) { |
| 195 | flowEntries.add(flowEntry); |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | return flowEntries; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 200 | } |
| 201 | |
| 202 | @Override |
| 203 | public Iterable<FlowRule> getFlowRulesByGroupId(ApplicationId appId, short groupId) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 204 | DeviceService deviceService = manager.get(network.id(), DeviceService.class); |
| 205 | |
| 206 | Set<FlowRule> matches = Sets.newHashSet(); |
| 207 | long toLookUp = ((long) appId.id() << 16) | groupId; |
| 208 | for (Device d : deviceService.getDevices()) { |
| 209 | for (FlowEntry flowEntry : store.getFlowEntries(network.id(), d.id())) { |
| 210 | if ((flowEntry.id().value() >>> 32) == toLookUp) { |
| 211 | matches.add(flowEntry); |
| 212 | } |
| 213 | } |
| 214 | } |
| 215 | return matches; |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | @Override |
| 219 | public void apply(FlowRuleOperations ops) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 220 | operationsService.execute(new FlowOperationsProcessor(ops)); |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | @Override |
| 224 | public Iterable<TableStatisticsEntry> getFlowTableStatistics(DeviceId deviceId) { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 225 | return store.getTableStatistics(network.id(), deviceId); |
| 226 | } |
| 227 | |
| 228 | private static FlowRuleBatchEntry.FlowRuleOperation mapOperationType(FlowRuleOperation.Type input) { |
| 229 | switch (input) { |
| 230 | case ADD: |
| 231 | return FlowRuleBatchEntry.FlowRuleOperation.ADD; |
| 232 | case MODIFY: |
| 233 | return FlowRuleBatchEntry.FlowRuleOperation.MODIFY; |
| 234 | case REMOVE: |
| 235 | return FlowRuleBatchEntry.FlowRuleOperation.REMOVE; |
| 236 | default: |
| 237 | throw new UnsupportedOperationException("Unknown flow rule type " + input); |
| 238 | } |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public VirtualNetwork network() { |
yoonseon | 6b972c3 | 2016-12-06 16:45:03 -0800 | [diff] [blame^] | 243 | return this.network; |
| 244 | } |
| 245 | |
| 246 | private class FlowOperationsProcessor implements Runnable { |
| 247 | // Immutable |
| 248 | private final FlowRuleOperations fops; |
| 249 | |
| 250 | // Mutable |
| 251 | private final List<Set<FlowRuleOperation>> stages; |
| 252 | private final Set<DeviceId> pendingDevices = new HashSet<>(); |
| 253 | private boolean hasFailed = false; |
| 254 | |
| 255 | FlowOperationsProcessor(FlowRuleOperations ops) { |
| 256 | this.stages = Lists.newArrayList(ops.stages()); |
| 257 | this.fops = ops; |
| 258 | } |
| 259 | |
| 260 | @Override |
| 261 | public synchronized void run() { |
| 262 | if (stages.size() > 0) { |
| 263 | process(stages.remove(0)); |
| 264 | } else if (!hasFailed) { |
| 265 | fops.callback().onSuccess(fops); |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | private void process(Set<FlowRuleOperation> ops) { |
| 270 | Multimap<DeviceId, FlowRuleBatchEntry> perDeviceBatches = ArrayListMultimap.create(); |
| 271 | |
| 272 | for (FlowRuleOperation op : ops) { |
| 273 | perDeviceBatches.put(op.rule().deviceId(), |
| 274 | new FlowRuleBatchEntry(mapOperationType(op.type()), op.rule())); |
| 275 | } |
| 276 | pendingDevices.addAll(perDeviceBatches.keySet()); |
| 277 | |
| 278 | for (DeviceId deviceId : perDeviceBatches.keySet()) { |
| 279 | long id = idGenerator.getNewId(); |
| 280 | final FlowRuleBatchOperation b = new FlowRuleBatchOperation(perDeviceBatches.get(deviceId), |
| 281 | deviceId, id); |
| 282 | pendingFlowOperations.put(id, this); |
| 283 | deviceInstallers.execute(() -> store.storeBatch(network.id(), b)); |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | synchronized void satisfy(DeviceId devId) { |
| 288 | pendingDevices.remove(devId); |
| 289 | if (pendingDevices.isEmpty()) { |
| 290 | operationsService.execute(this); |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | synchronized void fail(DeviceId devId, Set<? extends FlowRule> failures) { |
| 295 | hasFailed = true; |
| 296 | pendingDevices.remove(devId); |
| 297 | if (pendingDevices.isEmpty()) { |
| 298 | operationsService.execute(this); |
| 299 | } |
| 300 | |
| 301 | FlowRuleOperations.Builder failedOpsBuilder = FlowRuleOperations.builder(); |
| 302 | failures.forEach(failedOpsBuilder::add); |
| 303 | |
| 304 | fops.callback().onError(failedOpsBuilder.build()); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | private class InternalFlowRuleProviderService |
| 309 | extends AbstractVirtualProviderService<VirtualFlowRuleProvider> |
| 310 | implements VirtualFlowRuleProviderService { |
| 311 | |
| 312 | final Map<FlowEntry, Long> firstSeen = Maps.newConcurrentMap(); |
| 313 | final Map<FlowEntry, Long> lastSeen = Maps.newConcurrentMap(); |
| 314 | |
| 315 | @Override |
| 316 | public void flowRemoved(FlowEntry flowEntry) { |
| 317 | checkNotNull(flowEntry, FLOW_RULE_NULL); |
| 318 | checkValidity(); |
| 319 | |
| 320 | lastSeen.remove(flowEntry); |
| 321 | firstSeen.remove(flowEntry); |
| 322 | FlowEntry stored = store.getFlowEntry(network.id(), flowEntry); |
| 323 | if (stored == null) { |
| 324 | log.debug("Rule already evicted from store: {}", flowEntry); |
| 325 | return; |
| 326 | } |
| 327 | if (flowEntry.reason() == FlowEntry.FlowRemoveReason.HARD_TIMEOUT) { |
| 328 | ((DefaultFlowEntry) stored).setState(FlowEntry.FlowEntryState.REMOVED); |
| 329 | } |
| 330 | Device device = deviceService.getDevice(flowEntry.deviceId()); |
| 331 | |
| 332 | //FIXME: obtains provider from devices providerId() |
| 333 | FlowRuleEvent event = null; |
| 334 | switch (stored.state()) { |
| 335 | case ADDED: |
| 336 | case PENDING_ADD: |
| 337 | provider().applyFlowRule(network.id(), stored); |
| 338 | break; |
| 339 | case PENDING_REMOVE: |
| 340 | case REMOVED: |
| 341 | event = store.removeFlowRule(network.id(), stored); |
| 342 | break; |
| 343 | default: |
| 344 | break; |
| 345 | |
| 346 | } |
| 347 | if (event != null) { |
| 348 | log.debug("Flow {} removed", flowEntry); |
| 349 | post(event); |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | |
| 354 | private void flowMissing(FlowEntry flowRule) { |
| 355 | checkNotNull(flowRule, FLOW_RULE_NULL); |
| 356 | checkValidity(); |
| 357 | |
| 358 | FlowRuleEvent event = null; |
| 359 | switch (flowRule.state()) { |
| 360 | case PENDING_REMOVE: |
| 361 | case REMOVED: |
| 362 | event = store.removeFlowRule(network.id(), flowRule); |
| 363 | break; |
| 364 | case ADDED: |
| 365 | case PENDING_ADD: |
| 366 | event = store.pendingFlowRule(network.id(), flowRule); |
| 367 | try { |
| 368 | provider().applyFlowRule(network.id(), flowRule); |
| 369 | } catch (UnsupportedOperationException e) { |
| 370 | log.warn(e.getMessage()); |
| 371 | if (flowRule instanceof DefaultFlowEntry) { |
| 372 | //FIXME modification of "stored" flow entry outside of store |
| 373 | ((DefaultFlowEntry) flowRule).setState(FlowEntry.FlowEntryState.FAILED); |
| 374 | } |
| 375 | } |
| 376 | break; |
| 377 | default: |
| 378 | log.debug("Flow {} has not been installed.", flowRule); |
| 379 | } |
| 380 | |
| 381 | if (event != null) { |
| 382 | log.debug("Flow {} removed", flowRule); |
| 383 | post(event); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | private void extraneousFlow(FlowRule flowRule) { |
| 388 | checkNotNull(flowRule, FLOW_RULE_NULL); |
| 389 | checkValidity(); |
| 390 | |
| 391 | provider().removeFlowRule(network.id(), flowRule); |
| 392 | log.debug("Flow {} is on switch but not in store.", flowRule); |
| 393 | } |
| 394 | |
| 395 | private void flowAdded(FlowEntry flowEntry) { |
| 396 | checkNotNull(flowEntry, FLOW_RULE_NULL); |
| 397 | |
| 398 | if (checkRuleLiveness(flowEntry, store.getFlowEntry(network.id(), flowEntry))) { |
| 399 | FlowRuleEvent event = store.addOrUpdateFlowRule(network.id(), flowEntry); |
| 400 | if (event == null) { |
| 401 | log.debug("No flow store event generated."); |
| 402 | } else { |
| 403 | log.trace("Flow {} {}", flowEntry, event.type()); |
| 404 | post(event); |
| 405 | } |
| 406 | } else { |
| 407 | log.debug("Removing flow rules...."); |
| 408 | removeFlowRules(flowEntry); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | private boolean checkRuleLiveness(FlowEntry swRule, FlowEntry storedRule) { |
| 413 | if (storedRule == null) { |
| 414 | return false; |
| 415 | } |
| 416 | if (storedRule.isPermanent()) { |
| 417 | return true; |
| 418 | } |
| 419 | |
| 420 | final long timeout = storedRule.timeout() * 1000; |
| 421 | final long currentTime = System.currentTimeMillis(); |
| 422 | |
| 423 | // Checking flow with hardTimeout |
| 424 | if (storedRule.hardTimeout() != 0) { |
| 425 | if (!firstSeen.containsKey(storedRule)) { |
| 426 | // First time rule adding |
| 427 | firstSeen.put(storedRule, currentTime); |
| 428 | } else { |
| 429 | Long first = firstSeen.get(storedRule); |
| 430 | final long hardTimeout = storedRule.hardTimeout() * 1000; |
| 431 | if ((currentTime - first) > hardTimeout) { |
| 432 | return false; |
| 433 | } |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | if (storedRule.packets() != swRule.packets()) { |
| 438 | lastSeen.put(storedRule, currentTime); |
| 439 | return true; |
| 440 | } |
| 441 | if (!lastSeen.containsKey(storedRule)) { |
| 442 | // checking for the first time |
| 443 | lastSeen.put(storedRule, storedRule.lastSeen()); |
| 444 | // Use following if lastSeen attr. was removed. |
| 445 | //lastSeen.put(storedRule, currentTime); |
| 446 | } |
| 447 | Long last = lastSeen.get(storedRule); |
| 448 | |
| 449 | // concurrently removed? let the liveness check fail |
| 450 | return last != null && (currentTime - last) <= timeout; |
| 451 | } |
| 452 | |
| 453 | @Override |
| 454 | public void pushFlowMetrics(DeviceId deviceId, Iterable<FlowEntry> flowEntries) { |
| 455 | pushFlowMetricsInternal(deviceId, flowEntries, true); |
| 456 | } |
| 457 | |
| 458 | @Override |
| 459 | public void pushFlowMetricsWithoutFlowMissing(DeviceId deviceId, Iterable<FlowEntry> flowEntries) { |
| 460 | pushFlowMetricsInternal(deviceId, flowEntries, false); |
| 461 | } |
| 462 | |
| 463 | private void pushFlowMetricsInternal(DeviceId deviceId, Iterable<FlowEntry> flowEntries, |
| 464 | boolean useMissingFlow) { |
| 465 | Map<FlowEntry, FlowEntry> storedRules = Maps.newHashMap(); |
| 466 | store.getFlowEntries(network.id(), deviceId).forEach(f -> storedRules.put(f, f)); |
| 467 | |
| 468 | for (FlowEntry rule : flowEntries) { |
| 469 | try { |
| 470 | FlowEntry storedRule = storedRules.remove(rule); |
| 471 | if (storedRule != null) { |
| 472 | if (storedRule.exactMatch(rule)) { |
| 473 | // we both have the rule, let's update some info then. |
| 474 | flowAdded(rule); |
| 475 | } else { |
| 476 | // the two rules are not an exact match - remove the |
| 477 | // switch's rule and install our rule |
| 478 | extraneousFlow(rule); |
| 479 | flowMissing(storedRule); |
| 480 | } |
| 481 | } |
| 482 | } catch (Exception e) { |
| 483 | log.debug("Can't process added or extra rule {}", e.getMessage()); |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | // DO NOT reinstall |
| 488 | if (useMissingFlow) { |
| 489 | for (FlowEntry rule : storedRules.keySet()) { |
| 490 | try { |
| 491 | // there are rules in the store that aren't on the switch |
| 492 | log.debug("Adding rule in store, but not on switch {}", rule); |
| 493 | flowMissing(rule); |
| 494 | } catch (Exception e) { |
| 495 | log.debug("Can't add missing flow rule:", e); |
| 496 | } |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | public void batchOperationCompleted(long batchId, CompletedBatchOperation operation) { |
| 502 | store.batchOperationComplete(network.id(), FlowRuleBatchEvent.completed( |
| 503 | new FlowRuleBatchRequest(batchId, Collections.emptySet()), |
| 504 | operation |
| 505 | )); |
| 506 | } |
| 507 | |
| 508 | @Override |
| 509 | public void pushTableStatistics(DeviceId deviceId, |
| 510 | List<TableStatisticsEntry> tableStats) { |
| 511 | store.updateTableStatistics(network.id(), deviceId, tableStats); |
| 512 | } |
Claudine Chiu | 70222ad | 2016-11-17 22:29:20 -0500 | [diff] [blame] | 513 | } |
| 514 | } |