Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | package org.onosproject.driver.pipeline; |
| 17 | |
| 18 | import static org.onlab.util.Tools.groupedThreads; |
| 19 | import static org.slf4j.LoggerFactory.getLogger; |
| 20 | |
| 21 | import java.util.ArrayList; |
| 22 | import java.util.Collection; |
| 23 | import java.util.Collections; |
| 24 | import java.util.List; |
| 25 | import java.util.Set; |
| 26 | import java.util.concurrent.ConcurrentHashMap; |
| 27 | import java.util.concurrent.Executors; |
| 28 | import java.util.concurrent.ScheduledExecutorService; |
| 29 | import java.util.concurrent.TimeUnit; |
| 30 | import java.util.stream.Collectors; |
| 31 | |
| 32 | import org.onlab.osgi.ServiceDirectory; |
| 33 | import org.onlab.packet.Ethernet; |
| 34 | import org.onlab.packet.VlanId; |
| 35 | import org.onlab.util.KryoNamespace; |
| 36 | import org.onosproject.core.ApplicationId; |
| 37 | import org.onosproject.core.CoreService; |
| 38 | import org.onosproject.core.DefaultGroupId; |
| 39 | import org.onosproject.net.DeviceId; |
| 40 | import org.onosproject.net.PortNumber; |
| 41 | import org.onosproject.net.behaviour.NextGroup; |
| 42 | import org.onosproject.net.behaviour.Pipeliner; |
| 43 | import org.onosproject.net.behaviour.PipelinerContext; |
| 44 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 45 | import org.onosproject.net.flow.DefaultFlowRule; |
| 46 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 47 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 48 | import org.onosproject.net.flow.FlowRule; |
| 49 | import org.onosproject.net.flow.FlowRuleOperations; |
| 50 | import org.onosproject.net.flow.FlowRuleOperationsContext; |
| 51 | import org.onosproject.net.flow.FlowRuleService; |
| 52 | import org.onosproject.net.flow.TrafficSelector; |
| 53 | import org.onosproject.net.flow.TrafficTreatment; |
| 54 | import org.onosproject.net.flow.criteria.Criteria; |
| 55 | import org.onosproject.net.flow.criteria.Criterion; |
| 56 | import org.onosproject.net.flow.criteria.EthCriterion; |
| 57 | import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| 58 | import org.onosproject.net.flow.criteria.IPCriterion; |
| 59 | import org.onosproject.net.flow.criteria.PortCriterion; |
| 60 | import org.onosproject.net.flow.criteria.VlanIdCriterion; |
| 61 | import org.onosproject.net.flow.instructions.Instruction; |
| 62 | import org.onosproject.net.flow.instructions.Instructions.OutputInstruction; |
| 63 | import org.onosproject.net.flow.instructions.L2ModificationInstruction; |
| 64 | import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModEtherInstruction; |
| 65 | import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModVlanIdInstruction; |
| 66 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 67 | import org.onosproject.net.flowobjective.FlowObjectiveStore; |
| 68 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 69 | import org.onosproject.net.flowobjective.NextObjective; |
| 70 | import org.onosproject.net.flowobjective.Objective; |
| 71 | import org.onosproject.net.flowobjective.ObjectiveError; |
| 72 | import org.onosproject.net.group.DefaultGroupBucket; |
| 73 | import org.onosproject.net.group.DefaultGroupDescription; |
| 74 | import org.onosproject.net.group.DefaultGroupKey; |
| 75 | import org.onosproject.net.group.Group; |
| 76 | import org.onosproject.net.group.GroupBucket; |
| 77 | import org.onosproject.net.group.GroupBuckets; |
| 78 | import org.onosproject.net.group.GroupDescription; |
| 79 | import org.onosproject.net.group.GroupEvent; |
| 80 | import org.onosproject.net.group.GroupKey; |
| 81 | import org.onosproject.net.group.GroupListener; |
| 82 | import org.onosproject.net.group.GroupService; |
| 83 | import org.slf4j.Logger; |
| 84 | |
| 85 | import com.google.common.cache.Cache; |
| 86 | import com.google.common.cache.CacheBuilder; |
| 87 | import com.google.common.cache.RemovalCause; |
| 88 | import com.google.common.cache.RemovalNotification; |
| 89 | |
| 90 | /** |
| 91 | * Driver for Broadcom's OF-DPA v1.0 TTP. |
| 92 | * |
| 93 | */ |
| 94 | public class OFDPA1Pipeline extends AbstractHandlerBehaviour implements Pipeliner { |
| 95 | |
| 96 | protected static final int PORT_TABLE = 0; |
| 97 | protected static final int VLAN_TABLE = 10; |
| 98 | protected static final int TMAC_TABLE = 20; |
| 99 | protected static final int UNICAST_ROUTING_TABLE = 30; |
| 100 | protected static final int MULTICAST_ROUTING_TABLE = 40; |
| 101 | protected static final int BRIDGING_TABLE = 50; |
| 102 | protected static final int ACL_TABLE = 60; |
| 103 | protected static final int MAC_LEARNING_TABLE = 254; |
| 104 | |
| 105 | @SuppressWarnings("unused") |
| 106 | private static final int HIGHEST_PRIORITY = 0xffff; |
| 107 | private static final int DEFAULT_PRIORITY = 0x8000; |
| 108 | private static final int LOWEST_PRIORITY = 0x0; |
| 109 | |
| 110 | /* |
| 111 | * Group keys are normally generated by using the next Objective id. In the |
| 112 | * case of a next objective resulting in a group chain, each group derives a |
| 113 | * group key from the next objective id in the following way: |
| 114 | * The upper 4 bits of the group-key are used to denote the position of the |
| 115 | * group in the group chain. For example, in the chain |
| 116 | * group0 --> group1 --> group2 --> port |
| 117 | * group0's group key would have the upper 4 bits as 0, group1's upper four |
| 118 | * bits would be 1, and so on |
| 119 | */ |
| 120 | private static final int GROUP0MASK = 0x0; |
| 121 | private static final int GROUP1MASK = 0x10000000; |
| 122 | |
| 123 | /* |
| 124 | * OFDPA requires group-id's to have a certain form. |
| 125 | * L2 Interface Groups have <4bits-0><12bits-vlanid><16bits-portid> |
| 126 | * L3 Unicast Groups have <4bits-2><28bits-index> |
| 127 | */ |
| 128 | private static final int L2INTERFACEMASK = 0x0; |
| 129 | private static final int L3UNICASTMASK = 0x20000000; |
| 130 | |
| 131 | private final Logger log = getLogger(getClass()); |
| 132 | private ServiceDirectory serviceDirectory; |
| 133 | private FlowRuleService flowRuleService; |
| 134 | private CoreService coreService; |
| 135 | private GroupService groupService; |
| 136 | private FlowObjectiveStore flowObjectiveStore; |
| 137 | private DeviceId deviceId; |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 138 | private ApplicationId driverId; |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 139 | |
| 140 | private KryoNamespace appKryo = new KryoNamespace.Builder() |
| 141 | .register(GroupKey.class) |
| 142 | .register(DefaultGroupKey.class) |
| 143 | .register(OfdpaGroupChain.class) |
| 144 | .register(byte[].class) |
| 145 | .build(); |
| 146 | |
| 147 | private Cache<GroupKey, OfdpaGroupChain> pendingNextObjectives; |
| 148 | private ConcurrentHashMap<GroupKey, GroupChainElem> pendingGroups; |
| 149 | |
| 150 | private ScheduledExecutorService groupChecker = |
| 151 | Executors.newScheduledThreadPool(2, groupedThreads("onos/pipeliner", |
| 152 | "ofdpa1-%d")); |
| 153 | |
| 154 | @Override |
| 155 | public void init(DeviceId deviceId, PipelinerContext context) { |
| 156 | this.serviceDirectory = context.directory(); |
| 157 | this.deviceId = deviceId; |
| 158 | |
| 159 | pendingNextObjectives = CacheBuilder.newBuilder() |
| 160 | .expireAfterWrite(20, TimeUnit.SECONDS) |
| 161 | .removalListener((RemovalNotification<GroupKey, OfdpaGroupChain> notification) -> { |
| 162 | if (notification.getCause() == RemovalCause.EXPIRED) { |
| 163 | fail(notification.getValue().nextObjective(), |
| 164 | ObjectiveError.GROUPINSTALLATIONFAILED); |
| 165 | } |
| 166 | }).build(); |
| 167 | |
| 168 | groupChecker.scheduleAtFixedRate(new GroupChecker(), 0, 500, TimeUnit.MILLISECONDS); |
| 169 | pendingGroups = new ConcurrentHashMap<GroupKey, GroupChainElem>(); |
| 170 | |
| 171 | coreService = serviceDirectory.get(CoreService.class); |
| 172 | flowRuleService = serviceDirectory.get(FlowRuleService.class); |
| 173 | groupService = serviceDirectory.get(GroupService.class); |
| 174 | flowObjectiveStore = context.store(); |
| 175 | |
| 176 | groupService.addListener(new InnerGroupListener()); |
| 177 | |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 178 | driverId = coreService.registerApplication( |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 179 | "org.onosproject.driver.OFDPA1Pipeline"); |
| 180 | |
| 181 | initializePipeline(); |
| 182 | |
| 183 | } |
| 184 | |
| 185 | @Override |
| 186 | public void filter(FilteringObjective filteringObjective) { |
| 187 | if (filteringObjective.type() == FilteringObjective.Type.PERMIT) { |
| 188 | processFilter(filteringObjective, |
| 189 | filteringObjective.op() == Objective.Operation.ADD, |
| 190 | filteringObjective.appId()); |
| 191 | } else { |
| 192 | fail(filteringObjective, ObjectiveError.UNSUPPORTED); |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | @Override |
| 197 | public void forward(ForwardingObjective fwd) { |
| 198 | Collection<FlowRule> rules; |
| 199 | FlowRuleOperations.Builder flowOpsBuilder = FlowRuleOperations.builder(); |
| 200 | |
| 201 | rules = processForward(fwd); |
| 202 | switch (fwd.op()) { |
| 203 | case ADD: |
| 204 | rules.stream() |
| 205 | .filter(rule -> rule != null) |
| 206 | .forEach(flowOpsBuilder::add); |
| 207 | break; |
| 208 | case REMOVE: |
| 209 | rules.stream() |
| 210 | .filter(rule -> rule != null) |
| 211 | .forEach(flowOpsBuilder::remove); |
| 212 | break; |
| 213 | default: |
| 214 | fail(fwd, ObjectiveError.UNKNOWN); |
| 215 | log.warn("Unknown forwarding type {}", fwd.op()); |
| 216 | } |
| 217 | |
| 218 | |
| 219 | flowRuleService.apply(flowOpsBuilder.build(new FlowRuleOperationsContext() { |
| 220 | @Override |
| 221 | public void onSuccess(FlowRuleOperations ops) { |
| 222 | pass(fwd); |
| 223 | } |
| 224 | |
| 225 | @Override |
| 226 | public void onError(FlowRuleOperations ops) { |
| 227 | fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED); |
| 228 | } |
| 229 | })); |
| 230 | |
| 231 | } |
| 232 | |
| 233 | @Override |
| 234 | public void next(NextObjective nextObjective) { |
| 235 | switch (nextObjective.type()) { |
| 236 | case SIMPLE: |
| 237 | Collection<TrafficTreatment> treatments = nextObjective.next(); |
| 238 | if (treatments.size() != 1) { |
| 239 | log.error("Next Objectives of type Simple should only have a " |
| 240 | + "single Traffic Treatment. Next Objective Id:{}", nextObjective.id()); |
| 241 | fail(nextObjective, ObjectiveError.BADPARAMS); |
| 242 | return; |
| 243 | } |
| 244 | processSimpleNextObjective(nextObjective); |
| 245 | break; |
| 246 | case HASHED: |
| 247 | case BROADCAST: |
| 248 | case FAILOVER: |
| 249 | fail(nextObjective, ObjectiveError.UNSUPPORTED); |
| 250 | log.warn("Unsupported next objective type {}", nextObjective.type()); |
| 251 | break; |
| 252 | default: |
| 253 | fail(nextObjective, ObjectiveError.UNKNOWN); |
| 254 | log.warn("Unknown next objective type {}", nextObjective.type()); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * As per OFDPA 1.0 TTP, filtering of VLAN ids, MAC addresses (for routing) |
| 260 | * and IP addresses configured on switch ports happen in different tables. |
| 261 | * Note that IP filtering rules need to be added to the ACL table, as there |
| 262 | * is no mechanism to send to controller via IP table. |
| 263 | * |
| 264 | * @param filt |
| 265 | * @param install |
| 266 | * @param applicationId |
| 267 | */ |
| 268 | private void processFilter(FilteringObjective filt, |
| 269 | boolean install, ApplicationId applicationId) { |
| 270 | // This driver only processes filtering criteria defined with switch |
| 271 | // ports as the key |
| 272 | PortCriterion p = null; EthCriterion e = null; VlanIdCriterion v = null; |
| 273 | Collection<IPCriterion> ips = new ArrayList<IPCriterion>(); |
| 274 | if (!filt.key().equals(Criteria.dummy()) && |
| 275 | filt.key().type() == Criterion.Type.IN_PORT) { |
| 276 | p = (PortCriterion) filt.key(); |
| 277 | } else { |
| 278 | log.warn("No key defined in filtering objective from app: {}. Not" |
| 279 | + "processing filtering objective", applicationId); |
| 280 | fail(filt, ObjectiveError.UNKNOWN); |
| 281 | return; |
| 282 | } |
| 283 | // convert filtering conditions for switch-intfs into flowrules |
| 284 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 285 | for (Criterion c : filt.conditions()) { |
| 286 | if (c.type() == Criterion.Type.ETH_DST) { |
| 287 | e = (EthCriterion) c; |
| 288 | } else if (c.type() == Criterion.Type.VLAN_VID) { |
| 289 | v = (VlanIdCriterion) c; |
| 290 | } else if (c.type() == Criterion.Type.IPV4_DST) { |
| 291 | ips.add((IPCriterion) c); |
| 292 | } else { |
| 293 | log.error("Unsupported filter {}", c); |
| 294 | fail(filt, ObjectiveError.UNSUPPORTED); |
| 295 | return; |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | log.debug("adding VLAN filtering rule in VLAN table: {}", e.mac()); |
| 300 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 301 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 302 | selector.matchInPort(p.port()); |
| 303 | selector.matchVlanId(v.vlanId()); |
| 304 | treatment.transition(TMAC_TABLE); |
| 305 | FlowRule rule = DefaultFlowRule.builder() |
| 306 | .forDevice(deviceId) |
| 307 | .withSelector(selector.build()) |
| 308 | .withTreatment(treatment.build()) |
| 309 | .withPriority(DEFAULT_PRIORITY) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 310 | .fromApp(applicationId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 311 | .makePermanent() |
| 312 | .forTable(VLAN_TABLE).build(); |
| 313 | ops = ops.add(rule); |
| 314 | |
| 315 | log.debug("adding MAC filtering rules in TMAC table: {}", e.mac()); |
| 316 | selector = DefaultTrafficSelector.builder(); |
| 317 | treatment = DefaultTrafficTreatment.builder(); |
| 318 | selector.matchInPort(p.port()); |
| 319 | selector.matchVlanId(v.vlanId()); |
| 320 | selector.matchEthType(Ethernet.TYPE_IPV4); |
| 321 | selector.matchEthDst(e.mac()); |
| 322 | treatment.transition(UNICAST_ROUTING_TABLE); |
| 323 | rule = DefaultFlowRule.builder() |
| 324 | .forDevice(deviceId) |
| 325 | .withSelector(selector.build()) |
| 326 | .withTreatment(treatment.build()) |
| 327 | .withPriority(DEFAULT_PRIORITY) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 328 | .fromApp(applicationId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 329 | .makePermanent() |
| 330 | .forTable(TMAC_TABLE).build(); |
| 331 | ops = ops.add(rule); |
| 332 | |
| 333 | log.debug("adding IP filtering rules in ACL table"); |
| 334 | for (IPCriterion ipaddr : ips) { |
| 335 | selector = DefaultTrafficSelector.builder(); |
| 336 | treatment = DefaultTrafficTreatment.builder(); |
| 337 | selector.matchEthType(Ethernet.TYPE_IPV4); |
| 338 | selector.matchIPDst(ipaddr.ip()); |
| 339 | treatment.setOutput(PortNumber.CONTROLLER); |
| 340 | rule = DefaultFlowRule.builder() |
| 341 | .forDevice(deviceId) |
| 342 | .withSelector(selector.build()) |
| 343 | .withTreatment(treatment.build()) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 344 | .withPriority(HIGHEST_PRIORITY) |
| 345 | .fromApp(applicationId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 346 | .makePermanent() |
| 347 | .forTable(ACL_TABLE).build(); |
| 348 | ops = ops.add(rule); |
| 349 | } |
| 350 | |
| 351 | ops = install ? ops.add(rule) : ops.remove(rule); |
| 352 | // apply filtering flow rules |
| 353 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 354 | @Override |
| 355 | public void onSuccess(FlowRuleOperations ops) { |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 356 | log.info("Applied filtering rules"); |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 357 | pass(filt); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | @Override |
| 361 | public void onError(FlowRuleOperations ops) { |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 362 | log.info("Failed to apply filtering rules"); |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 363 | fail(filt, ObjectiveError.FLOWINSTALLATIONFAILED); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 364 | } |
| 365 | })); |
| 366 | |
| 367 | } |
| 368 | |
| 369 | |
| 370 | /** |
| 371 | * As per the OFDPA 1.0 TTP, packets are sent out of ports by using |
| 372 | * a chain of groups, namely an L3 Unicast Group that points to an L2 Interface |
| 373 | * Group which in turns points to an output port. The Next Objective passed |
| 374 | * in by the application has to be broken up into a group chain |
| 375 | * to satisfy this TTP. |
| 376 | * |
| 377 | * @param nextObj the nextObjective of type SIMPLE |
| 378 | */ |
| 379 | private void processSimpleNextObjective(NextObjective nextObj) { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 380 | // break up simple next objective to GroupChain objects |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 381 | TrafficTreatment treatment = nextObj.next().iterator().next(); |
| 382 | // for the l2interface group, get vlan and port info |
| 383 | // for the l3unicast group, get the src/dst mac and vlan info |
| 384 | TrafficTreatment.Builder l3utt = DefaultTrafficTreatment.builder(); |
| 385 | TrafficTreatment.Builder l2itt = DefaultTrafficTreatment.builder(); |
| 386 | VlanId vlanid = null; |
| 387 | long portNum = 0; |
| 388 | for (Instruction ins : treatment.allInstructions()) { |
| 389 | if (ins.type() == Instruction.Type.L2MODIFICATION) { |
| 390 | L2ModificationInstruction l2ins = (L2ModificationInstruction) ins; |
| 391 | switch (l2ins.subtype()) { |
| 392 | case ETH_DST: |
| 393 | l3utt.setEthDst(((ModEtherInstruction) l2ins).mac()); |
| 394 | break; |
| 395 | case ETH_SRC: |
| 396 | l3utt.setEthSrc(((ModEtherInstruction) l2ins).mac()); |
| 397 | break; |
| 398 | case VLAN_ID: |
| 399 | vlanid = ((ModVlanIdInstruction) l2ins).vlanId(); |
| 400 | l3utt.setVlanId(vlanid); |
| 401 | break; |
| 402 | case DEC_MPLS_TTL: |
| 403 | case MPLS_LABEL: |
| 404 | case MPLS_POP: |
| 405 | case MPLS_PUSH: |
| 406 | case VLAN_PCP: |
| 407 | case VLAN_POP: |
| 408 | case VLAN_PUSH: |
| 409 | default: |
| 410 | break; |
| 411 | } |
| 412 | } else if (ins.type() == Instruction.Type.OUTPUT) { |
| 413 | portNum = ((OutputInstruction) ins).port().toLong(); |
| 414 | l2itt.add(ins); |
| 415 | } else { |
| 416 | log.warn("Driver does not handle this type of TrafficTreatment" |
| 417 | + " instruction in nextObjectives: {}", ins.type()); |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | // assemble information for ofdpa l2interface group |
| 422 | int l2gk = nextObj.id() | GROUP1MASK; |
| 423 | final GroupKey l2groupkey = new DefaultGroupKey(appKryo.serialize(l2gk)); |
| 424 | Integer l2groupId = L2INTERFACEMASK | (vlanid.toShort() << 16) | (int) portNum; |
| 425 | |
| 426 | // assemble information for ofdpa l3unicast group |
| 427 | int l3gk = nextObj.id() | GROUP0MASK; |
| 428 | final GroupKey l3groupkey = new DefaultGroupKey(appKryo.serialize(l3gk)); |
| 429 | Integer l3groupId = L3UNICASTMASK | (int) portNum; |
| 430 | l3utt.group(new DefaultGroupId(l2groupId)); |
| 431 | GroupChainElem gce = new GroupChainElem(l3groupkey, l3groupId, |
| 432 | l3utt.build(), nextObj.appId()); |
| 433 | |
| 434 | // create object for local and distributed storage |
| 435 | List<GroupKey> gkeys = new ArrayList<GroupKey>(); |
| 436 | gkeys.add(l3groupkey); // group0 in chain |
| 437 | gkeys.add(l2groupkey); // group1 in chain |
| 438 | OfdpaGroupChain ofdpaGrp = new OfdpaGroupChain(gkeys, nextObj); |
| 439 | |
| 440 | // store l2groupkey with the groupChainElem for the l3group that depends on it |
| 441 | pendingGroups.put(l2groupkey, gce); |
| 442 | |
| 443 | // store l3groupkey with the ofdpaGroupChain for the nextObjective that depends on it |
| 444 | pendingNextObjectives.put(l3groupkey, ofdpaGrp); |
| 445 | |
| 446 | // create group description for the ofdpa l2interfacegroup and send to groupservice |
| 447 | GroupBucket bucket = |
| 448 | DefaultGroupBucket.createIndirectGroupBucket(l2itt.build()); |
| 449 | GroupDescription groupDescription = new DefaultGroupDescription(deviceId, |
| 450 | GroupDescription.Type.INDIRECT, |
| 451 | new GroupBuckets(Collections.singletonList(bucket)), |
| 452 | l2groupkey, |
| 453 | l2groupId, |
| 454 | nextObj.appId()); |
| 455 | groupService.addGroup(groupDescription); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Processes next element of a group chain. Assumption is that if this |
| 460 | * group points to another group, the latter has already been created |
| 461 | * and this driver has received notification for it. A second assumption is |
| 462 | * that if there is another group waiting for this group then the appropriate |
| 463 | * stores already have the information to act upon the notification for the |
| 464 | * creating of this group. |
| 465 | * |
| 466 | * @param gce the group chain element to be processed next |
| 467 | */ |
| 468 | private void processGroupChain(GroupChainElem gce) { |
| 469 | GroupBucket bucket = DefaultGroupBucket |
| 470 | .createIndirectGroupBucket(gce.getBucketActions()); |
| 471 | GroupDescription groupDesc = new DefaultGroupDescription(deviceId, |
| 472 | GroupDescription.Type.INDIRECT, |
| 473 | new GroupBuckets(Collections.singletonList(bucket)), |
| 474 | gce.getGkey(), |
| 475 | gce.getGivenGroupId(), |
| 476 | gce.getAppId()); |
| 477 | groupService.addGroup(groupDesc); |
| 478 | } |
| 479 | |
| 480 | private Collection<FlowRule> processForward(ForwardingObjective fwd) { |
| 481 | switch (fwd.flag()) { |
| 482 | case SPECIFIC: |
| 483 | return processSpecific(fwd); |
| 484 | case VERSATILE: |
| 485 | return processVersatile(fwd); |
| 486 | default: |
| 487 | fail(fwd, ObjectiveError.UNKNOWN); |
| 488 | log.warn("Unknown forwarding flag {}", fwd.flag()); |
| 489 | } |
| 490 | return Collections.emptySet(); |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * In the OF-DPA 1.0 pipeline, versatile forwarding objectives go to the |
| 495 | * ACL table. |
| 496 | * @param fwd the forwarding objective of type 'versatile' |
| 497 | * @return a collection of flow rules to be sent to the switch. An empty |
| 498 | * collection may be returned if there is a problem in processing |
| 499 | * the flow rule |
| 500 | */ |
| 501 | private Collection<FlowRule> processVersatile(ForwardingObjective fwd) { |
| 502 | log.info("Processing versatile forwarding objective"); |
| 503 | TrafficSelector selector = fwd.selector(); |
| 504 | |
| 505 | EthTypeCriterion ethType = |
| 506 | (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE); |
| 507 | if (ethType == null) { |
| 508 | log.error("Versatile forwarding objective must include ethType"); |
| 509 | fail(fwd, ObjectiveError.UNKNOWN); |
| 510 | return Collections.emptySet(); |
| 511 | } |
| 512 | if (ethType.ethType() == Ethernet.TYPE_ARP) { |
| 513 | log.warn("Installing ARP rule to table 60"); |
| 514 | |
| 515 | // currently need to punt from ACL table should use: |
| 516 | // OF apply-actions-instruction |
| 517 | // To use OF write-actions-instruction |
| 518 | /*TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder(); |
| 519 | fwd.treatment().allInstructions().stream() |
| 520 | .forEach(ti -> tb.deferred().add(ti));*/ |
| 521 | |
| 522 | FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| 523 | .fromApp(fwd.appId()) |
| 524 | .withPriority(fwd.priority()) |
| 525 | .forDevice(deviceId) |
| 526 | .withSelector(fwd.selector()) |
| 527 | .withTreatment(fwd.treatment()) |
| 528 | .makePermanent() |
| 529 | .forTable(ACL_TABLE); |
| 530 | |
| 531 | // XXX bug in OFDPA |
| 532 | return Collections.singletonList(ruleBuilder.build()); |
| 533 | } |
| 534 | |
| 535 | // XXX not handling other versatile flows yet |
| 536 | return Collections.emptySet(); |
| 537 | } |
| 538 | |
| 539 | /** |
| 540 | * In the OF-DPA 1.0 pipeline, specific forwarding refers to the IP table |
| 541 | * (unicast or multicast) or the L2 table (mac + vlan). |
| 542 | * |
| 543 | * @param fwd the forwarding objective of type 'specific' |
| 544 | * @return a collection of flow rules. Typically there will be only one |
| 545 | * for this type of forwarding objective. An empty set may be |
| 546 | * returned if there is an issue in processing the objective. |
| 547 | */ |
| 548 | private Collection<FlowRule> processSpecific(ForwardingObjective fwd) { |
| 549 | log.debug("Processing specific forwarding objective"); |
| 550 | TrafficSelector selector = fwd.selector(); |
| 551 | EthTypeCriterion ethType = |
| 552 | (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE); |
| 553 | // XXX currently supporting only the L3 unicast table |
| 554 | if (ethType == null || ethType.ethType() != Ethernet.TYPE_IPV4) { |
| 555 | fail(fwd, ObjectiveError.UNSUPPORTED); |
| 556 | return Collections.emptySet(); |
| 557 | } |
| 558 | |
| 559 | TrafficSelector filteredSelector = |
| 560 | DefaultTrafficSelector.builder() |
| 561 | .matchEthType(Ethernet.TYPE_IPV4) |
| 562 | .matchIPDst( |
| 563 | ((IPCriterion) |
| 564 | selector.getCriterion(Criterion.Type.IPV4_DST)).ip()) |
| 565 | .build(); |
| 566 | |
| 567 | TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder(); |
| 568 | |
| 569 | if (fwd.nextId() != null) { |
| 570 | NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| 571 | List<GroupKey> gkeys = appKryo.deserialize(next.data()); |
| 572 | Group group = groupService.getGroup(deviceId, gkeys.get(0)); |
| 573 | if (group == null) { |
| 574 | log.warn("The group left!"); |
| 575 | fail(fwd, ObjectiveError.GROUPMISSING); |
| 576 | return Collections.emptySet(); |
| 577 | } |
| 578 | tb.group(group.id()); |
| 579 | } |
| 580 | |
| 581 | FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| 582 | .fromApp(fwd.appId()) |
| 583 | .withPriority(fwd.priority()) |
| 584 | .forDevice(deviceId) |
| 585 | .withSelector(filteredSelector) |
| 586 | .withTreatment(tb.build()); |
| 587 | |
| 588 | if (fwd.permanent()) { |
| 589 | ruleBuilder.makePermanent(); |
| 590 | } else { |
| 591 | ruleBuilder.makeTemporary(fwd.timeout()); |
| 592 | } |
| 593 | |
| 594 | ruleBuilder.forTable(UNICAST_ROUTING_TABLE); |
| 595 | return Collections.singletonList(ruleBuilder.build()); |
| 596 | } |
| 597 | |
| 598 | private void pass(Objective obj) { |
| 599 | if (obj.context().isPresent()) { |
| 600 | obj.context().get().onSuccess(obj); |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | |
| 605 | private void fail(Objective obj, ObjectiveError error) { |
| 606 | if (obj.context().isPresent()) { |
| 607 | obj.context().get().onError(obj, error); |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | |
| 612 | private void initializePipeline() { |
| 613 | processPortTable(); |
| 614 | processVlanTable(); |
| 615 | processTmacTable(); |
| 616 | processIpTable(); |
| 617 | //processMcastTable(); |
| 618 | //processBridgingTable(); |
| 619 | //processAclTable(); |
| 620 | //processGroupTable(); |
| 621 | } |
| 622 | |
| 623 | private void processPortTable() { |
| 624 | //XXX is table miss entry enough or do we need to do the maskable in-port 0? |
| 625 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 626 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 627 | selector.matchInPort(PortNumber.portNumber(0)); // should be maskable? |
| 628 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 629 | treatment.transition(VLAN_TABLE); |
| 630 | FlowRule tmisse = DefaultFlowRule.builder() |
| 631 | .forDevice(deviceId) |
| 632 | .withSelector(selector.build()) |
| 633 | .withTreatment(treatment.build()) |
| 634 | .withPriority(LOWEST_PRIORITY) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 635 | .fromApp(driverId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 636 | .makePermanent() |
| 637 | .forTable(PORT_TABLE).build(); |
| 638 | ops = ops.add(tmisse); |
| 639 | |
| 640 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 641 | @Override |
| 642 | public void onSuccess(FlowRuleOperations ops) { |
| 643 | log.info("Initialized port table"); |
| 644 | } |
| 645 | |
| 646 | @Override |
| 647 | public void onError(FlowRuleOperations ops) { |
| 648 | log.info("Failed to initialize port table"); |
| 649 | } |
| 650 | })); |
| 651 | |
| 652 | } |
| 653 | |
| 654 | private void processVlanTable() { |
| 655 | // make these up for now - should really be filtering rules |
| 656 | /*FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 657 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 658 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 659 | selector.matchInPort(PortNumber.portNumber(10)); |
| 660 | selector.matchVlanId(VlanId.vlanId((short) 100)); |
| 661 | treatment.transition(TMAC_TABLE); |
| 662 | FlowRule rule = DefaultFlowRule.builder() |
| 663 | .forDevice(deviceId) |
| 664 | .withSelector(selector.build()) |
| 665 | .withTreatment(treatment.build()) |
| 666 | .withPriority(DEFAULT_PRIORITY) |
| 667 | .fromApp(appId) |
| 668 | .makePermanent() |
| 669 | .forTable(VLAN_TABLE).build(); |
| 670 | ops = ops.add(rule); |
| 671 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 672 | @Override |
| 673 | public void onSuccess(FlowRuleOperations ops) { |
| 674 | log.info("Initialized vlan table"); |
| 675 | } |
| 676 | |
| 677 | @Override |
| 678 | public void onError(FlowRuleOperations ops) { |
| 679 | log.info("Failed to initialize vlan table"); |
| 680 | } |
| 681 | }));*/ |
| 682 | |
| 683 | // Table miss entry is not required as ofdpa default is to drop |
| 684 | // In OF terms, the absence of a t.m.e. also implies drop |
| 685 | } |
| 686 | |
| 687 | |
| 688 | private void processTmacTable() { |
| 689 | // this is made up as well -- should be a filtering rule |
| 690 | /*selector.matchInPort(PortNumber.portNumber(10)); |
| 691 | selector.matchVlanId(VlanId.vlanId((short) 100)); |
| 692 | selector.matchEthType(Ethernet.TYPE_IPV4); |
| 693 | selector.matchEthDst(MacAddress.valueOf("00:00:00:ba:ba:00")); |
| 694 | treatment.transition(UNICAST_ROUTING_TABLE); |
| 695 | FlowRule rule = DefaultFlowRule.builder() |
| 696 | .forDevice(deviceId) |
| 697 | .withSelector(selector.build()) |
| 698 | .withTreatment(treatment.build()) |
| 699 | .withPriority(DEFAULT_PRIORITY) |
| 700 | .fromApp(appId) |
| 701 | .makePermanent() |
| 702 | .forTable(TMAC_TABLE).build(); |
| 703 | ops = ops.add(rule);*/ |
| 704 | |
| 705 | //table miss entry |
| 706 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 707 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 708 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 709 | selector = DefaultTrafficSelector.builder(); |
| 710 | treatment = DefaultTrafficTreatment.builder(); |
| 711 | treatment.transition(BRIDGING_TABLE); |
| 712 | FlowRule rule = DefaultFlowRule.builder() |
| 713 | .forDevice(deviceId) |
| 714 | .withSelector(selector.build()) |
| 715 | .withTreatment(treatment.build()) |
| 716 | .withPriority(LOWEST_PRIORITY) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 717 | .fromApp(driverId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 718 | .makePermanent() |
| 719 | .forTable(TMAC_TABLE).build(); |
| 720 | ops = ops.add(rule); // XXX bug in ofdpa |
| 721 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 722 | @Override |
| 723 | public void onSuccess(FlowRuleOperations ops) { |
| 724 | log.info("Initialized tmac table"); |
| 725 | } |
| 726 | |
| 727 | @Override |
| 728 | public void onError(FlowRuleOperations ops) { |
| 729 | log.info("Failed to initialize tmac table"); |
| 730 | } |
| 731 | })); |
| 732 | } |
| 733 | |
| 734 | private void processIpTable() { |
| 735 | //table miss entry |
| 736 | FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| 737 | TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| 738 | TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| 739 | selector = DefaultTrafficSelector.builder(); |
| 740 | treatment = DefaultTrafficTreatment.builder(); |
| 741 | treatment.transition(ACL_TABLE); |
| 742 | FlowRule rule = DefaultFlowRule.builder() |
| 743 | .forDevice(deviceId) |
| 744 | .withSelector(selector.build()) |
| 745 | .withTreatment(treatment.build()) |
| 746 | .withPriority(LOWEST_PRIORITY) |
Saurav Das | c39f603 | 2015-05-14 17:12:47 -0700 | [diff] [blame^] | 747 | .fromApp(driverId) |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 748 | .makePermanent() |
| 749 | .forTable(UNICAST_ROUTING_TABLE).build(); |
| 750 | ops = ops.add(rule); |
| 751 | flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| 752 | @Override |
| 753 | public void onSuccess(FlowRuleOperations ops) { |
| 754 | log.info("Initialized IP table"); |
| 755 | } |
| 756 | |
| 757 | @Override |
| 758 | public void onError(FlowRuleOperations ops) { |
| 759 | log.info("Failed to initialize unicast IP table"); |
| 760 | } |
| 761 | })); |
| 762 | } |
| 763 | |
| 764 | @SuppressWarnings("unused") |
| 765 | private void processGroupTable() { |
| 766 | // Creating a dummy L2 group as per OFDPA requirements |
| 767 | /* TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| 768 | .setOutput(PortNumber.portNumber(10)) |
| 769 | .build(); |
| 770 | NextObjective nextObjective = DefaultNextObjective.builder() |
| 771 | .addTreatment(treatment) |
| 772 | .fromApp(appId) |
| 773 | .withId(678) // dummy next objective id |
| 774 | .withType(NextObjective.Type.SIMPLE) |
| 775 | .add(); |
| 776 | Integer l2groupId = 0x0064000a; |
| 777 | GroupBucket bucket = |
| 778 | DefaultGroupBucket.createIndirectGroupBucket(treatment); |
| 779 | final GroupKey key = new DefaultGroupKey(appKryo.serialize(678)); |
| 780 | GroupDescription groupDescriptionl2 |
| 781 | = new DefaultGroupDescription(deviceId, |
| 782 | GroupDescription.Type.INDIRECT, |
| 783 | new GroupBuckets(Collections |
| 784 | .singletonList(bucket)), |
| 785 | key, |
| 786 | l2groupId, |
| 787 | appId); |
| 788 | groupService.addGroup(groupDescriptionl2);*/ |
| 789 | //pendingNextObjectives.put(key, nextObjective); |
| 790 | |
| 791 | } |
| 792 | |
| 793 | @SuppressWarnings("unused") |
| 794 | private void tryGroupChain() { |
| 795 | //Create a dummy L3 group as per OFDPA requirements |
| 796 | /*TrafficTreatment treatment2 = DefaultTrafficTreatment.builder() |
| 797 | .setEthDst(MacAddress.valueOf("00:00:00:aa:aa:aa")) |
| 798 | .setEthSrc(MacAddress.valueOf("00:00:00:dd:dd:dd")) |
| 799 | .setVlanId(VlanId.vlanId((short) 100)) |
| 800 | .group(new DefaultGroupId(0x0064000a)) |
| 801 | .build(); |
| 802 | NextObjective nextObjective2 = DefaultNextObjective.builder() |
| 803 | .addTreatment(treatment2) |
| 804 | .fromApp(appId) |
| 805 | .withId(67800) // another dummy next objective id |
| 806 | .withType(NextObjective.Type.SIMPLE) |
| 807 | .add(); |
| 808 | Integer l3groupId = 0x2000000a; |
| 809 | GroupBucket bucket2 = DefaultGroupBucket.createIndirectGroupBucket(treatment2); |
| 810 | final GroupKey key2 = new DefaultGroupKey(appKryo.serialize(67800)); |
| 811 | GroupDescription groupDescriptionl3 |
| 812 | = new DefaultGroupDescription(deviceId, |
| 813 | GroupDescription.Type.INDIRECT, |
| 814 | new GroupBuckets(Collections |
| 815 | .singletonList(bucket2)), |
| 816 | key2, |
| 817 | l3groupId, |
| 818 | appId); |
| 819 | groupService.addGroup(groupDescriptionl3); |
| 820 | pendingNextObjectives.put(key2, nextObjective2); |
| 821 | */ |
| 822 | } |
| 823 | |
| 824 | private class GroupChecker implements Runnable { |
| 825 | @Override |
| 826 | public void run() { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 827 | Set<GroupKey> keys = pendingGroups.keySet().stream() |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 828 | .filter(key -> groupService.getGroup(deviceId, key) != null) |
| 829 | .collect(Collectors.toSet()); |
| 830 | |
| 831 | keys.stream().forEach(key -> { |
| 832 | //first check for group chain |
| 833 | GroupChainElem gce = pendingGroups.remove(key); |
| 834 | if (gce != null) { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 835 | log.info("Group service processed group key {}. Processing next " |
| 836 | + "group in group chain with group key {}", |
| 837 | appKryo.deserialize(key.key()), |
| 838 | appKryo.deserialize(gce.getGkey().key())); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 839 | processGroupChain(gce); |
| 840 | } else { |
| 841 | OfdpaGroupChain obj = pendingNextObjectives.getIfPresent(key); |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 842 | log.info("Group service processed group key {}. Done implementing " |
| 843 | + "next objective: {}", appKryo.deserialize(key.key()), |
| 844 | obj.nextObjective().id()); |
| 845 | if (obj != null) { |
| 846 | pass(obj.nextObjective()); |
| 847 | pendingNextObjectives.invalidate(key); |
| 848 | flowObjectiveStore.putNextGroup(obj.nextObjective().id(), obj); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 849 | } |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 850 | } |
| 851 | }); |
| 852 | } |
| 853 | } |
| 854 | |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 855 | private class InnerGroupListener implements GroupListener { |
| 856 | @Override |
| 857 | public void event(GroupEvent event) { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 858 | log.info("received group event of type {}", event.type()); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 859 | if (event.type() == GroupEvent.Type.GROUP_ADDED) { |
| 860 | GroupKey key = event.subject().appCookie(); |
| 861 | // first check for group chain |
| 862 | GroupChainElem gce = pendingGroups.remove(key); |
| 863 | if (gce != null) { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 864 | log.info("group ADDED with group key {} .. " |
| 865 | + "Processing next group in group chain with group key {}", |
| 866 | appKryo.deserialize(key.key()), |
| 867 | appKryo.deserialize(gce.getGkey().key())); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 868 | processGroupChain(gce); |
| 869 | } else { |
| 870 | OfdpaGroupChain obj = pendingNextObjectives.getIfPresent(key); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 871 | if (obj != null) { |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 872 | log.info("group ADDED with key {}.. Done implementing next " |
| 873 | + "objective: {}", |
| 874 | appKryo.deserialize(key.key()), obj.nextObjective().id()); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 875 | pass(obj.nextObjective()); |
| 876 | pendingNextObjectives.invalidate(key); |
Saurav Das | f9ba422 | 2015-05-07 17:13:59 -0700 | [diff] [blame] | 877 | flowObjectiveStore.putNextGroup(obj.nextObjective().id(), obj); |
Saurav Das | 100e3b8 | 2015-04-30 11:12:10 -0700 | [diff] [blame] | 878 | } |
| 879 | } |
| 880 | } |
| 881 | } |
| 882 | } |
| 883 | |
| 884 | /** |
| 885 | * Represents a group-chain that implements a Next-Objective from |
| 886 | * the application. Includes information about the next objective Id, and the |
| 887 | * group keys for the groups in the group chain. The chain is expected to |
| 888 | * look like group0 --> group 1 --> outPort. Information about the groups |
| 889 | * themselves can be fetched from the Group Service using the group keys from |
| 890 | * objects instantiating this class. |
| 891 | */ |
| 892 | private class OfdpaGroupChain implements NextGroup { |
| 893 | private final NextObjective nextObj; |
| 894 | private final List<GroupKey> gkeys; |
| 895 | |
| 896 | /** expected group chain: group0 --> group1 --> port. */ |
| 897 | public OfdpaGroupChain(List<GroupKey> gkeys, NextObjective nextObj) { |
| 898 | this.gkeys = gkeys; |
| 899 | this.nextObj = nextObj; |
| 900 | } |
| 901 | |
| 902 | @SuppressWarnings("unused") |
| 903 | public List<GroupKey> groupKeys() { |
| 904 | return gkeys; |
| 905 | } |
| 906 | |
| 907 | public NextObjective nextObjective() { |
| 908 | return nextObj; |
| 909 | } |
| 910 | |
| 911 | @Override |
| 912 | public byte[] data() { |
| 913 | return appKryo.serialize(gkeys); |
| 914 | } |
| 915 | |
| 916 | } |
| 917 | |
| 918 | /** |
| 919 | * Represents a group element that is part of a chain of groups. |
| 920 | * Stores enough information to create a Group Description to add the group |
| 921 | * to the switch by requesting the Group Service. Objects instantiating this |
| 922 | * class are meant to be temporary and live as long as it is needed to wait for |
| 923 | * preceding groups in the group chain to be created. |
| 924 | */ |
| 925 | private class GroupChainElem { |
| 926 | private TrafficTreatment bucketActions; |
| 927 | private Integer givenGroupId; |
| 928 | private GroupKey gkey; |
| 929 | private ApplicationId appId; |
| 930 | |
| 931 | public GroupChainElem(GroupKey gkey, Integer givenGroupId, |
| 932 | TrafficTreatment tr, ApplicationId appId) { |
| 933 | this.bucketActions = tr; |
| 934 | this.givenGroupId = givenGroupId; |
| 935 | this.gkey = gkey; |
| 936 | this.appId = appId; |
| 937 | } |
| 938 | |
| 939 | public TrafficTreatment getBucketActions() { |
| 940 | return bucketActions; |
| 941 | } |
| 942 | |
| 943 | public Integer getGivenGroupId() { |
| 944 | return givenGroupId; |
| 945 | } |
| 946 | |
| 947 | public GroupKey getGkey() { |
| 948 | return gkey; |
| 949 | } |
| 950 | |
| 951 | public ApplicationId getAppId() { |
| 952 | return appId; |
| 953 | } |
| 954 | |
| 955 | } |
| 956 | } |