Michele Santuari | 9a8d16d | 2016-03-24 10:37:58 -0700 | [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.drivers.corsa; |
| 18 | |
| 19 | import com.google.common.cache.Cache; |
| 20 | import com.google.common.cache.CacheBuilder; |
| 21 | import com.google.common.cache.RemovalCause; |
| 22 | import com.google.common.cache.RemovalNotification; |
| 23 | import org.onlab.osgi.ServiceDirectory; |
| 24 | import org.onlab.packet.Ethernet; |
| 25 | import org.onlab.util.KryoNamespace; |
| 26 | import org.onosproject.core.ApplicationId; |
| 27 | import org.onosproject.core.CoreService; |
| 28 | import org.onosproject.net.DeviceId; |
| 29 | import org.onosproject.net.behaviour.NextGroup; |
| 30 | import org.onosproject.net.behaviour.Pipeliner; |
| 31 | import org.onosproject.net.behaviour.PipelinerContext; |
| 32 | import org.onosproject.net.device.DeviceService; |
| 33 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 34 | import org.onosproject.net.flow.DefaultFlowRule; |
| 35 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 36 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 37 | import org.onosproject.net.flow.FlowRule; |
| 38 | import org.onosproject.net.flow.FlowRuleOperations; |
| 39 | import org.onosproject.net.flow.FlowRuleOperationsContext; |
| 40 | import org.onosproject.net.flow.FlowRuleService; |
| 41 | import org.onosproject.net.flow.TrafficSelector; |
| 42 | import org.onosproject.net.flow.TrafficTreatment; |
| 43 | import org.onosproject.net.flow.criteria.Criteria; |
| 44 | import org.onosproject.net.flow.criteria.Criterion; |
| 45 | import org.onosproject.net.flow.criteria.EthCriterion; |
| 46 | import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| 47 | import org.onosproject.net.flow.criteria.IPCriterion; |
| 48 | import org.onosproject.net.flow.criteria.PortCriterion; |
| 49 | import org.onosproject.net.flow.criteria.VlanIdCriterion; |
| 50 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 51 | import org.onosproject.net.flowobjective.FlowObjectiveStore; |
| 52 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 53 | import org.onosproject.net.flowobjective.NextObjective; |
| 54 | import org.onosproject.net.flowobjective.Objective; |
| 55 | import org.onosproject.net.flowobjective.ObjectiveError; |
| 56 | import org.onosproject.net.group.DefaultGroupBucket; |
| 57 | import org.onosproject.net.group.DefaultGroupDescription; |
| 58 | import org.onosproject.net.group.DefaultGroupKey; |
| 59 | import org.onosproject.net.group.Group; |
| 60 | import org.onosproject.net.group.GroupBucket; |
| 61 | import org.onosproject.net.group.GroupBuckets; |
| 62 | import org.onosproject.net.group.GroupDescription; |
| 63 | import org.onosproject.net.group.GroupEvent; |
| 64 | import org.onosproject.net.group.GroupKey; |
| 65 | import org.onosproject.net.group.GroupListener; |
| 66 | import org.onosproject.net.group.GroupService; |
| 67 | import org.onosproject.net.meter.MeterService; |
| 68 | import org.slf4j.Logger; |
| 69 | |
| 70 | import java.util.Collection; |
| 71 | import java.util.Collections; |
| 72 | import java.util.List; |
| 73 | import java.util.Objects; |
| 74 | import java.util.Set; |
| 75 | import java.util.concurrent.Executors; |
| 76 | import java.util.concurrent.ScheduledExecutorService; |
| 77 | import java.util.concurrent.TimeUnit; |
| 78 | import java.util.stream.Collectors; |
| 79 | |
| 80 | import static org.onlab.util.Tools.groupedThreads; |
| 81 | import static org.onosproject.net.flow.FlowRule.Builder; |
| 82 | import static org.slf4j.LoggerFactory.getLogger; |
| 83 | |
| 84 | /** |
| 85 | * Abstraction of the Corsa pipeline handler. |
| 86 | */ |
| 87 | public abstract class AbstractCorsaPipeline extends AbstractHandlerBehaviour implements Pipeliner { |
| 88 | |
| 89 | |
| 90 | private final Logger log = getLogger(getClass()); |
| 91 | |
| 92 | private ServiceDirectory serviceDirectory; |
| 93 | protected FlowRuleService flowRuleService; |
| 94 | private CoreService coreService; |
| 95 | private GroupService groupService; |
| 96 | protected MeterService meterService; |
| 97 | private FlowObjectiveStore flowObjectiveStore; |
| 98 | protected DeviceId deviceId; |
| 99 | protected ApplicationId appId; |
| 100 | protected DeviceService deviceService; |
| 101 | |
| 102 | private KryoNamespace appKryo = new KryoNamespace.Builder() |
| 103 | .register(GroupKey.class) |
| 104 | .register(DefaultGroupKey.class) |
| 105 | .register(CorsaGroup.class) |
| 106 | .register(byte[].class) |
| 107 | .build(); |
| 108 | |
| 109 | private Cache<GroupKey, NextObjective> pendingGroups; |
| 110 | |
| 111 | private ScheduledExecutorService groupChecker = |
| 112 | Executors.newScheduledThreadPool(2, groupedThreads("onos/pipeliner", |
| 113 | "ovs-corsa-%d")); |
| 114 | |
| 115 | protected static final int CONTROLLER_PRIORITY = 255; |
| 116 | protected static final int DROP_PRIORITY = 0; |
| 117 | protected static final int HIGHEST_PRIORITY = 0xffff; |
| 118 | protected static final String APPID = "org.onosproject.drivers.corsa.CorsaPipeline"; |
| 119 | |
| 120 | @Override |
| 121 | public void init(DeviceId deviceId, PipelinerContext context) { |
| 122 | this.serviceDirectory = context.directory(); |
| 123 | this.deviceId = deviceId; |
| 124 | |
| 125 | pendingGroups = CacheBuilder.newBuilder() |
| 126 | .expireAfterWrite(20, TimeUnit.SECONDS) |
| 127 | .removalListener((RemovalNotification<GroupKey, NextObjective> notification) -> { |
| 128 | if (notification.getCause() == RemovalCause.EXPIRED) { |
| 129 | fail(notification.getValue(), ObjectiveError.GROUPINSTALLATIONFAILED); |
| 130 | } |
| 131 | }).build(); |
| 132 | |
| 133 | groupChecker.scheduleAtFixedRate(new GroupChecker(), 0, 500, TimeUnit.MILLISECONDS); |
| 134 | |
| 135 | coreService = serviceDirectory.get(CoreService.class); |
| 136 | flowRuleService = serviceDirectory.get(FlowRuleService.class); |
| 137 | groupService = serviceDirectory.get(GroupService.class); |
| 138 | meterService = serviceDirectory.get(MeterService.class); |
| 139 | deviceService = serviceDirectory.get(DeviceService.class); |
| 140 | flowObjectiveStore = context.store(); |
| 141 | |
| 142 | groupService.addListener(new InnerGroupListener()); |
| 143 | |
| 144 | appId = coreService.registerApplication(APPID); |
| 145 | |
| 146 | initializePipeline(); |
| 147 | } |
| 148 | |
| 149 | protected abstract void initializePipeline(); |
| 150 | |
| 151 | protected void pass(Objective obj) { |
| 152 | obj.context().ifPresent(context -> context.onSuccess(obj)); |
| 153 | } |
| 154 | |
| 155 | protected void fail(Objective obj, ObjectiveError error) { |
| 156 | obj.context().ifPresent(context -> context.onError(obj, error)); |
| 157 | } |
| 158 | |
| 159 | private class GroupChecker implements Runnable { |
| 160 | |
| 161 | @Override |
| 162 | public void run() { |
| 163 | Set<GroupKey> keys = pendingGroups.asMap().keySet().stream() |
| 164 | .filter(key -> groupService.getGroup(deviceId, key) != null) |
| 165 | .collect(Collectors.toSet()); |
| 166 | |
| 167 | keys.stream().forEach(key -> { |
| 168 | NextObjective obj = pendingGroups.getIfPresent(key); |
| 169 | if (obj == null) { |
| 170 | return; |
| 171 | } |
| 172 | pass(obj); |
| 173 | pendingGroups.invalidate(key); |
| 174 | log.info("Heard back from group service for group {}. " |
| 175 | + "Applying pending forwarding objectives", obj.id()); |
| 176 | flowObjectiveStore.putNextGroup(obj.id(), new CorsaGroup(key)); |
| 177 | }); |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | private class CorsaGroup implements NextGroup { |
| 182 | |
| 183 | private final GroupKey key; |
| 184 | |
| 185 | public CorsaGroup(GroupKey key) { |
| 186 | this.key = key; |
| 187 | } |
| 188 | |
| 189 | public GroupKey key() { |
| 190 | return key; |
| 191 | } |
| 192 | |
| 193 | @Override |
| 194 | public byte[] data() { |
| 195 | return appKryo.serialize(key); |
| 196 | } |
| 197 | |
| 198 | } |
| 199 | |
| 200 | @Override |
| 201 | public List<String> getNextMappings(NextGroup nextGroup) { |
| 202 | //TODO: to be implemented |
| 203 | return Collections.emptyList(); |
| 204 | } |
| 205 | |
| 206 | private class InnerGroupListener implements GroupListener { |
| 207 | @Override |
| 208 | public void event(GroupEvent event) { |
| 209 | if (event.type() == GroupEvent.Type.GROUP_ADDED) { |
| 210 | GroupKey key = event.subject().appCookie(); |
| 211 | |
| 212 | NextObjective obj = pendingGroups.getIfPresent(key); |
| 213 | if (obj != null) { |
| 214 | flowObjectiveStore.putNextGroup(obj.id(), new CorsaGroup(key)); |
| 215 | pass(obj); |
| 216 | pendingGroups.invalidate(key); |
| 217 | } |
| 218 | } |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | |
| 223 | @Override |
| 224 | public void filter(FilteringObjective filteringObjective) { |
| 225 | if (filteringObjective.type() == FilteringObjective.Type.PERMIT) { |
| 226 | processFilter(filteringObjective, |
| 227 | filteringObjective.op() == Objective.Operation.ADD, |
| 228 | filteringObjective.appId()); |
| 229 | } else { |
| 230 | fail(filteringObjective, ObjectiveError.UNSUPPORTED); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | private void processFilter(FilteringObjective filt, boolean install, |
| 235 | ApplicationId applicationId) { |
| 236 | // This driver only processes filtering criteria defined with switch |
| 237 | // ports as the key |
| 238 | PortCriterion port; |
| 239 | if (!filt.key().equals(Criteria.dummy()) && |
| 240 | filt.key().type() == Criterion.Type.IN_PORT) { |
| 241 | port = (PortCriterion) filt.key(); |
| 242 | } else { |
| 243 | log.warn("No key defined in filtering objective from app: {}. Not" |
| 244 | + "processing filtering objective", applicationId); |
| 245 | fail(filt, ObjectiveError.UNKNOWN); |
| 246 | return; |
| 247 | } |
| 248 | // convert filtering conditions for switch-intfs into flowrules |
| 249 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 250 | for (Criterion c : filt.conditions()) { |
| 251 | if (c.type() == Criterion.Type.ETH_DST) { |
| 252 | EthCriterion eth = (EthCriterion) c; |
| 253 | FlowRule.Builder rule = processEthFiler(filt, eth, port); |
| 254 | rule.forDevice(deviceId) |
| 255 | .fromApp(applicationId); |
| 256 | ops = install ? ops.add(rule.build()) : ops.remove(rule.build()); |
| 257 | |
| 258 | } else if (c.type() == Criterion.Type.VLAN_VID) { |
| 259 | VlanIdCriterion vlan = (VlanIdCriterion) c; |
| 260 | FlowRule.Builder rule = processVlanFiler(filt, vlan, port); |
| 261 | rule.forDevice(deviceId) |
| 262 | .fromApp(applicationId); |
| 263 | ops = install ? ops.add(rule.build()) : ops.remove(rule.build()); |
| 264 | |
| 265 | } else if (c.type() == Criterion.Type.IPV4_DST) { |
| 266 | IPCriterion ip = (IPCriterion) c; |
| 267 | FlowRule.Builder rule = processIpFilter(filt, ip, port); |
| 268 | rule.forDevice(deviceId) |
| 269 | .fromApp(applicationId); |
| 270 | ops = install ? ops.add(rule.build()) : ops.remove(rule.build()); |
| 271 | |
| 272 | } else { |
| 273 | log.warn("Driver does not currently process filtering condition" |
| 274 | + " of type: {}", c.type()); |
| 275 | fail(filt, ObjectiveError.UNSUPPORTED); |
| 276 | } |
| 277 | } |
| 278 | // apply filtering flow rules |
| 279 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 280 | @Override |
| 281 | public void onSuccess(FlowRuleOperations ops) { |
| 282 | pass(filt); |
| 283 | log.info("Applied filtering rules"); |
| 284 | } |
| 285 | |
| 286 | @Override |
| 287 | public void onError(FlowRuleOperations ops) { |
| 288 | fail(filt, ObjectiveError.FLOWINSTALLATIONFAILED); |
| 289 | log.info("Failed to apply filtering rules"); |
| 290 | } |
| 291 | })); |
| 292 | } |
| 293 | |
| 294 | protected abstract Builder processEthFiler(FilteringObjective filt, |
| 295 | EthCriterion eth, PortCriterion port); |
| 296 | |
| 297 | protected abstract Builder processVlanFiler(FilteringObjective filt, |
| 298 | VlanIdCriterion vlan, PortCriterion port); |
| 299 | |
| 300 | protected abstract Builder processIpFilter(FilteringObjective filt, |
| 301 | IPCriterion ip, PortCriterion port); |
| 302 | |
| 303 | |
| 304 | @Override |
| 305 | public void forward(ForwardingObjective fwd) { |
| 306 | Collection<FlowRule> rules; |
| 307 | FlowRuleOperations.Builder flowBuilder = FlowRuleOperations.builder(); |
| 308 | |
| 309 | rules = processForward(fwd); |
| 310 | switch (fwd.op()) { |
| 311 | case ADD: |
| 312 | rules.stream() |
| 313 | .filter(Objects::nonNull) |
| 314 | .forEach(flowBuilder::add); |
| 315 | break; |
| 316 | case REMOVE: |
| 317 | rules.stream() |
| 318 | .filter(Objects::nonNull) |
| 319 | .forEach(flowBuilder::remove); |
| 320 | break; |
| 321 | default: |
| 322 | fail(fwd, ObjectiveError.UNKNOWN); |
| 323 | log.warn("Unknown forwarding type {}", fwd.op()); |
| 324 | } |
| 325 | |
| 326 | flowRuleService.apply(flowBuilder.build(new FlowRuleOperationsContext() { |
| 327 | @Override |
| 328 | public void onSuccess(FlowRuleOperations ops) { |
| 329 | pass(fwd); |
| 330 | } |
| 331 | |
| 332 | @Override |
| 333 | public void onError(FlowRuleOperations ops) { |
| 334 | fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED); |
| 335 | } |
| 336 | })); |
| 337 | |
| 338 | } |
| 339 | |
| 340 | private Collection<FlowRule> processForward(ForwardingObjective fwd) { |
| 341 | switch (fwd.flag()) { |
| 342 | case SPECIFIC: |
| 343 | return processSpecific(fwd); |
| 344 | case VERSATILE: |
| 345 | return processVersatile(fwd); |
| 346 | default: |
| 347 | fail(fwd, ObjectiveError.UNKNOWN); |
| 348 | log.warn("Unknown forwarding flag {}", fwd.flag()); |
| 349 | } |
| 350 | return Collections.emptySet(); |
| 351 | } |
| 352 | |
| 353 | private Collection<FlowRule> processSpecific(ForwardingObjective fwd) { |
| 354 | log.debug("Processing specific forwarding objective"); |
| 355 | TrafficSelector selector = fwd.selector(); |
| 356 | EthTypeCriterion ethType = |
| 357 | (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE); |
| 358 | if (ethType != null) { |
| 359 | short et = ethType.ethType().toShort(); |
| 360 | if (et == Ethernet.TYPE_IPV4) { |
| 361 | return processSpecificRoute(fwd); |
| 362 | } else if (et == Ethernet.TYPE_VLAN) { |
| 363 | /* The ForwardingObjective must specify VLAN ethtype in order to use the Transit Circuit */ |
| 364 | return processSpecificSwitch(fwd); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | fail(fwd, ObjectiveError.UNSUPPORTED); |
| 369 | return Collections.emptySet(); |
| 370 | } |
| 371 | |
| 372 | protected Collection<FlowRule> processSpecificSwitch(ForwardingObjective fwd) { |
| 373 | /* Not supported by until CorsaPipelineV3 */ |
| 374 | log.warn("Vlan switching not supported in ovs-corsa driver"); |
| 375 | fail(fwd, ObjectiveError.UNSUPPORTED); |
| 376 | return Collections.emptySet(); |
| 377 | } |
| 378 | |
| 379 | private Collection<FlowRule> processVersatile(ForwardingObjective fwd) { |
| 380 | log.debug("Processing vesatile forwarding objective"); |
| 381 | TrafficSelector selector = fwd.selector(); |
| 382 | |
| 383 | EthTypeCriterion ethType = |
| 384 | (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE); |
| 385 | if (ethType == null) { |
| 386 | log.error("Versatile forwarding objective must include ethType"); |
| 387 | fail(fwd, ObjectiveError.UNKNOWN); |
| 388 | return Collections.emptySet(); |
| 389 | } |
| 390 | Builder rule = DefaultFlowRule.builder() |
| 391 | .forDevice(deviceId) |
| 392 | .withSelector(fwd.selector()) |
| 393 | .withTreatment(fwd.treatment()) |
| 394 | .withPriority(fwd.priority()) |
| 395 | .fromApp(fwd.appId()) |
| 396 | .makePermanent(); |
| 397 | if (ethType.ethType().toShort() == Ethernet.TYPE_ARP) { |
| 398 | return processArpTraffic(fwd, rule); |
| 399 | } else if (ethType.ethType().toShort() == Ethernet.TYPE_LLDP || |
| 400 | ethType.ethType().toShort() == Ethernet.TYPE_BSN) { |
| 401 | return processLinkDiscovery(fwd, rule); |
| 402 | } else if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) { |
| 403 | return processIpTraffic(fwd, rule); |
| 404 | } |
| 405 | log.warn("Driver does not support given versatile forwarding objective"); |
| 406 | fail(fwd, ObjectiveError.UNSUPPORTED); |
| 407 | return Collections.emptySet(); |
| 408 | } |
| 409 | |
| 410 | protected abstract Collection<FlowRule> processArpTraffic(ForwardingObjective fwd, Builder rule); |
| 411 | |
| 412 | protected abstract Collection<FlowRule> processLinkDiscovery(ForwardingObjective fwd, Builder rule); |
| 413 | |
| 414 | protected abstract Collection<FlowRule> processIpTraffic(ForwardingObjective fwd, Builder rule); |
| 415 | |
| 416 | private Collection<FlowRule> processSpecificRoute(ForwardingObjective fwd) { |
| 417 | TrafficSelector filteredSelector = |
| 418 | DefaultTrafficSelector.builder() |
| 419 | .matchEthType(Ethernet.TYPE_IPV4) |
| 420 | .matchIPDst( |
| 421 | ((IPCriterion) fwd.selector().getCriterion(Criterion.Type.IPV4_DST)).ip()) |
| 422 | .build(); |
| 423 | |
| 424 | TrafficTreatment.Builder tb = processSpecificRoutingTreatment(); |
| 425 | |
| 426 | if (fwd.nextId() != null) { |
| 427 | NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| 428 | GroupKey key = appKryo.deserialize(next.data()); |
| 429 | Group group = groupService.getGroup(deviceId, key); |
| 430 | if (group == null) { |
| 431 | log.warn("The group left!"); |
| 432 | fail(fwd, ObjectiveError.GROUPMISSING); |
| 433 | return Collections.emptySet(); |
| 434 | } |
| 435 | tb.group(group.id()); |
| 436 | } |
| 437 | Builder ruleBuilder = DefaultFlowRule.builder() |
| 438 | .fromApp(fwd.appId()) |
| 439 | .withPriority(fwd.priority()) |
| 440 | .forDevice(deviceId) |
| 441 | .withSelector(filteredSelector) |
| 442 | .withTreatment(tb.build()); |
| 443 | |
| 444 | ruleBuilder = processSpecificRoutingRule(ruleBuilder); |
| 445 | |
| 446 | if (fwd.permanent()) { |
| 447 | ruleBuilder.makePermanent(); |
| 448 | } else { |
| 449 | ruleBuilder.makeTemporary(fwd.timeout()); |
| 450 | } |
| 451 | return Collections.singletonList(ruleBuilder.build()); |
| 452 | } |
| 453 | |
| 454 | //Hook for modifying Route traffic treatment |
| 455 | protected TrafficTreatment.Builder processSpecificRoutingTreatment() { |
| 456 | return DefaultTrafficTreatment.builder(); |
| 457 | } |
| 458 | |
| 459 | //Hook for modifying Route flow rule |
| 460 | protected abstract Builder processSpecificRoutingRule(Builder rb); |
| 461 | |
| 462 | @Override |
| 463 | public void next(NextObjective nextObjective) { |
| 464 | switch (nextObjective.type()) { |
| 465 | case SIMPLE: |
| 466 | Collection<TrafficTreatment> treatments = nextObjective.next(); |
| 467 | if (treatments.size() == 1) { |
| 468 | TrafficTreatment treatment = treatments.iterator().next(); |
| 469 | treatment = processNextTreatment(treatment); |
| 470 | GroupBucket bucket = |
| 471 | DefaultGroupBucket.createIndirectGroupBucket(treatment); |
| 472 | final GroupKey key = new DefaultGroupKey(appKryo.serialize(nextObjective.id())); |
| 473 | GroupDescription groupDescription |
| 474 | = new DefaultGroupDescription(deviceId, |
| 475 | GroupDescription.Type.INDIRECT, |
| 476 | new GroupBuckets(Collections |
| 477 | .singletonList(bucket)), |
| 478 | key, |
| 479 | null, // let group service determine group id |
| 480 | nextObjective.appId()); |
| 481 | groupService.addGroup(groupDescription); |
| 482 | pendingGroups.put(key, nextObjective); |
| 483 | } |
| 484 | break; |
| 485 | case HASHED: |
| 486 | case BROADCAST: |
| 487 | case FAILOVER: |
| 488 | fail(nextObjective, ObjectiveError.UNSUPPORTED); |
| 489 | log.warn("Unsupported next objective type {}", nextObjective.type()); |
| 490 | break; |
| 491 | default: |
| 492 | fail(nextObjective, ObjectiveError.UNKNOWN); |
| 493 | log.warn("Unknown next objective type {}", nextObjective.type()); |
| 494 | } |
| 495 | |
| 496 | } |
| 497 | |
| 498 | //Hook for altering the NextObjective treatment |
| 499 | protected TrafficTreatment processNextTreatment(TrafficTreatment treatment) { |
| 500 | return treatment; |
| 501 | } |
| 502 | |
| 503 | //Init helper: Table Miss = Drop |
| 504 | protected void processTableMissDrop(boolean install, int table, String description) { |
| 505 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 506 | |
| 507 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 508 | treatment.drop(); |
| 509 | |
| 510 | FlowRule rule = DefaultFlowRule.builder() |
| 511 | .forDevice(deviceId) |
| 512 | .withSelector(selector.build()) |
| 513 | .withTreatment(treatment.build()) |
| 514 | .withPriority(DROP_PRIORITY) |
| 515 | .fromApp(appId) |
| 516 | .makePermanent() |
| 517 | .forTable(table).build(); |
| 518 | |
| 519 | processFlowRule(install, rule, description); |
| 520 | } |
| 521 | |
| 522 | //Init helper: Table Miss = GoTo |
| 523 | protected void processTableMissGoTo(boolean install, int table, int goTo, String description) { |
| 524 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 525 | |
| 526 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 527 | treatment.transition(goTo); |
| 528 | |
| 529 | FlowRule rule = DefaultFlowRule.builder() |
| 530 | .forDevice(deviceId) |
| 531 | .withSelector(selector.build()) |
| 532 | .withTreatment(treatment.build()) |
| 533 | .withPriority(DROP_PRIORITY) |
| 534 | .fromApp(appId) |
| 535 | .makePermanent() |
| 536 | .forTable(table).build(); |
| 537 | |
| 538 | processFlowRule(install, rule, description); |
| 539 | } |
| 540 | |
| 541 | //Init helper: Apply flow rule |
| 542 | protected void processFlowRule(boolean install, FlowRule rule, String description) { |
| 543 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 544 | ops = install ? ops.add(rule) : ops.remove(rule); |
| 545 | |
| 546 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 547 | @Override |
| 548 | public void onSuccess(FlowRuleOperations ops) { |
| 549 | log.info(description + " success: " + ops.toString() + ", " + rule.toString()); |
| 550 | } |
| 551 | |
| 552 | @Override |
| 553 | public void onError(FlowRuleOperations ops) { |
| 554 | log.info(description + " error: " + ops.toString() + ", " + rule.toString()); |
| 555 | } |
| 556 | })); |
| 557 | } |
| 558 | } |