| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.driver.pipeline; |
| |
| import static java.util.concurrent.Executors.newScheduledThreadPool; |
| import static org.onlab.util.Tools.groupedThreads; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import com.google.common.cache.Cache; |
| import com.google.common.cache.CacheBuilder; |
| import com.google.common.cache.RemovalCause; |
| import com.google.common.cache.RemovalNotification; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.onlab.osgi.ServiceDirectory; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.MacAddress; |
| import org.onlab.packet.VlanId; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.NextGroup; |
| import org.onosproject.net.behaviour.Pipeliner; |
| import org.onosproject.net.behaviour.PipelinerContext; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.FlowRuleOperations; |
| import org.onosproject.net.flow.FlowRuleOperationsContext; |
| import org.onosproject.net.flow.FlowRuleService; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.criteria.Criteria; |
| import org.onosproject.net.flow.criteria.Criterion; |
| import org.onosproject.net.flow.criteria.Criterion.Type; |
| import org.onosproject.net.flow.criteria.EthCriterion; |
| import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| import org.onosproject.net.flow.criteria.IPCriterion; |
| import org.onosproject.net.flow.criteria.MplsBosCriterion; |
| import org.onosproject.net.flow.criteria.MplsCriterion; |
| import org.onosproject.net.flow.criteria.PortCriterion; |
| import org.onosproject.net.flow.criteria.VlanIdCriterion; |
| import org.onosproject.net.flow.instructions.Instruction; |
| import org.onosproject.net.flow.instructions.Instructions.OutputInstruction; |
| import org.onosproject.net.flow.instructions.L2ModificationInstruction; |
| import org.onosproject.net.flow.instructions.L2ModificationInstruction.ModVlanIdInstruction; |
| import org.onosproject.net.flowobjective.FilteringObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveStore; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.NextObjective; |
| import org.onosproject.net.flowobjective.Objective; |
| import org.onosproject.net.flowobjective.ObjectiveError; |
| import org.onosproject.net.group.DefaultGroupBucket; |
| import org.onosproject.net.group.DefaultGroupDescription; |
| import org.onosproject.net.group.DefaultGroupKey; |
| import org.onosproject.net.group.Group; |
| import org.onosproject.net.group.GroupBucket; |
| import org.onosproject.net.group.GroupBuckets; |
| import org.onosproject.net.group.GroupDescription; |
| import org.onosproject.net.group.GroupEvent; |
| import org.onosproject.net.group.GroupKey; |
| import org.onosproject.net.group.GroupListener; |
| import org.onosproject.net.group.GroupService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.ScheduledThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Driver for SPRING-OPEN pipeline. |
| */ |
| public class SpringOpenTTP extends AbstractHandlerBehaviour |
| implements Pipeliner { |
| |
| /** |
| * GroupCheck delay. |
| */ |
| private static final int CHECK_DELAY = 500; |
| |
| // Default table ID - compatible with CpqD switch |
| private static final int TABLE_VLAN = 0; |
| private static final int TABLE_TMAC = 1; |
| private static final int TABLE_IPV4_UNICAST = 2; |
| private static final int TABLE_MPLS = 3; |
| private static final int TABLE_DMAC = 4; |
| private static final int TABLE_ACL = 5; |
| private static final int TABLE_SMAC = 6; |
| |
| /** |
| * Set the default values. These variables will get overwritten based on the |
| * switch vendor type |
| */ |
| protected int vlanTableId = TABLE_VLAN; |
| protected int tmacTableId = TABLE_TMAC; |
| protected int ipv4UnicastTableId = TABLE_IPV4_UNICAST; |
| protected int mplsTableId = TABLE_MPLS; |
| protected int dstMacTableId = TABLE_DMAC; |
| protected int aclTableId = TABLE_ACL; |
| protected int srcMacTableId = TABLE_SMAC; |
| |
| private static final Logger log = getLogger(SpringOpenTTP.class); |
| |
| private ServiceDirectory serviceDirectory; |
| private FlowRuleService flowRuleService; |
| private CoreService coreService; |
| protected GroupService groupService; |
| protected FlowObjectiveStore flowObjectiveStore; |
| protected DeviceId deviceId; |
| private ApplicationId appId; |
| |
| private Cache<GroupKey, NextObjective> pendingGroups; |
| |
| private static final ScheduledExecutorService GROUP_CHECKER |
| = newScheduledThreadPool(2, |
| groupedThreads("onos/pipeliner", |
| "spring-open-%d", log)); |
| static { |
| // ONOS-3579 workaround, let core threads die out on idle |
| if (GROUP_CHECKER instanceof ScheduledThreadPoolExecutor) { |
| ScheduledThreadPoolExecutor executor = (ScheduledThreadPoolExecutor) GROUP_CHECKER; |
| executor.setKeepAliveTime(CHECK_DELAY * 2, TimeUnit.MILLISECONDS); |
| executor.allowCoreThreadTimeOut(true); |
| } |
| } |
| |
| protected KryoNamespace appKryo = new KryoNamespace.Builder() |
| .register(KryoNamespaces.API) |
| .register(GroupKey.class) |
| .register(DefaultGroupKey.class) |
| .register(TrafficTreatment.class) |
| .register(SpringOpenGroup.class) |
| .build("SpringOpenTTP"); |
| |
| @Override |
| public void init(DeviceId deviceId, PipelinerContext context) { |
| this.serviceDirectory = context.directory(); |
| this.deviceId = deviceId; |
| |
| pendingGroups = CacheBuilder |
| .newBuilder() |
| .expireAfterWrite(20, TimeUnit.SECONDS) |
| .removalListener((RemovalNotification<GroupKey, NextObjective> notification) -> { |
| if (notification.getCause() == RemovalCause.EXPIRED) { |
| fail(notification.getValue(), |
| ObjectiveError.GROUPINSTALLATIONFAILED); |
| } |
| }).build(); |
| |
| coreService = serviceDirectory.get(CoreService.class); |
| flowRuleService = serviceDirectory.get(FlowRuleService.class); |
| groupService = serviceDirectory.get(GroupService.class); |
| flowObjectiveStore = context.store(); |
| |
| groupService.addListener(new InnerGroupListener()); |
| |
| appId = coreService |
| .registerApplication("org.onosproject.driver.SpringOpenTTP"); |
| |
| setTableMissEntries(); |
| log.info("Spring Open TTP driver initialized"); |
| } |
| |
| @Override |
| public void filter(FilteringObjective filteringObjective) { |
| if (filteringObjective.type() == FilteringObjective.Type.PERMIT) { |
| log.debug("processing PERMIT filter objective"); |
| processFilter(filteringObjective, |
| filteringObjective.op() == Objective.Operation.ADD, |
| filteringObjective.appId()); |
| } else { |
| log.debug("filter objective other than PERMIT not supported"); |
| fail(filteringObjective, ObjectiveError.UNSUPPORTED); |
| } |
| } |
| |
| @Override |
| public void forward(ForwardingObjective fwd) { |
| Collection<FlowRule> rules; |
| FlowRuleOperations.Builder flowBuilder = FlowRuleOperations.builder(); |
| |
| rules = processForward(fwd); |
| switch (fwd.op()) { |
| case ADD: |
| rules.stream().filter(Objects::nonNull) |
| .forEach(flowBuilder::add); |
| break; |
| case REMOVE: |
| rules.stream().filter(Objects::nonNull) |
| .forEach(flowBuilder::remove); |
| break; |
| default: |
| fail(fwd, ObjectiveError.UNKNOWN); |
| log.warn("Unknown forwarding type {}", fwd.op()); |
| } |
| |
| flowRuleService.apply(flowBuilder |
| .build(new FlowRuleOperationsContext() { |
| @Override |
| public void onSuccess(FlowRuleOperations ops) { |
| pass(fwd); |
| log.debug("Provisioned tables in {} successfully with " |
| + "forwarding rules", deviceId); |
| } |
| |
| @Override |
| public void onError(FlowRuleOperations ops) { |
| fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED); |
| log.warn("Failed to provision tables in {} with " |
| + "forwarding rules", deviceId); |
| } |
| })); |
| |
| } |
| |
| @Override |
| public void next(NextObjective nextObjective) { |
| NextGroup nextGroup = flowObjectiveStore.getNextGroup(nextObjective.id()); |
| switch (nextObjective.op()) { |
| case ADD: |
| if (nextGroup != null) { |
| log.warn("Cannot add next {} that already exists in device {}", |
| nextObjective.id(), deviceId); |
| return; |
| } |
| log.debug("Processing NextObjective id{} in dev{} - add group", |
| nextObjective.id(), deviceId); |
| addGroup(nextObjective); |
| break; |
| case ADD_TO_EXISTING: |
| if (nextGroup != null) { |
| log.debug("Processing NextObjective id{} in dev{} - add bucket", |
| nextObjective.id(), deviceId); |
| addBucketToGroup(nextObjective); |
| } else { |
| log.warn("Cannot add to group that does not exist"); |
| } |
| break; |
| case REMOVE: |
| if (nextGroup == null) { |
| log.warn("Cannot remove next {} that does not exist in device {}", |
| nextObjective.id(), deviceId); |
| return; |
| } |
| log.debug("Processing NextObjective id{} in dev{} - remove group", |
| nextObjective.id(), deviceId); |
| removeGroup(nextObjective); |
| break; |
| case REMOVE_FROM_EXISTING: |
| if (nextGroup == null) { |
| log.warn("Cannot remove from next {} that does not exist in device {}", |
| nextObjective.id(), deviceId); |
| return; |
| } |
| log.debug("Processing NextObjective id{} in dev{} - remove bucket", |
| nextObjective.id(), deviceId); |
| removeBucketFromGroup(nextObjective); |
| break; |
| default: |
| log.warn("Unsupported operation {}", nextObjective.op()); |
| } |
| } |
| |
| private void removeGroup(NextObjective nextObjective) { |
| log.debug("removeGroup in {}: for next objective id {}", |
| deviceId, nextObjective.id()); |
| final GroupKey key = new DefaultGroupKey( |
| appKryo.serialize(nextObjective.id())); |
| groupService.removeGroup(deviceId, key, appId); |
| } |
| |
| private void addGroup(NextObjective nextObjective) { |
| log.debug("addGroup with type{} for nextObjective id {}", |
| nextObjective.type(), nextObjective.id()); |
| List<GroupBucket> buckets; |
| switch (nextObjective.type()) { |
| case SIMPLE: |
| Collection<TrafficTreatment> treatments = nextObjective.next(); |
| if (treatments.size() == 1) { |
| // Spring Open TTP converts simple nextObjective to flow-actions |
| // in a dummy group |
| TrafficTreatment treatment = nextObjective.next().iterator().next(); |
| log.debug("Converting SIMPLE group for next objective id {} " + |
| "to {} flow-actions in device:{}", nextObjective.id(), |
| treatment.allInstructions().size(), deviceId); |
| flowObjectiveStore.putNextGroup(nextObjective.id(), |
| new SpringOpenGroup(null, treatment)); |
| } |
| break; |
| case HASHED: |
| // we convert MPLS ECMP groups to flow-actions for a single |
| // bucket(output port). |
| boolean mplsEcmp = false; |
| if (nextObjective.meta() != null) { |
| for (Criterion c : nextObjective.meta().criteria()) { |
| if (c.type() == Type.MPLS_LABEL) { |
| mplsEcmp = true; |
| } |
| } |
| } |
| if (mplsEcmp) { |
| // covert to flow-actions in a dummy group by choosing the first bucket |
| log.debug("Converting HASHED group for next objective id {} " + |
| "to flow-actions in device:{}", nextObjective.id(), |
| deviceId); |
| TrafficTreatment treatment = nextObjective.next().iterator().next(); |
| flowObjectiveStore.putNextGroup(nextObjective.id(), |
| new SpringOpenGroup(null, treatment)); |
| } else { |
| // process as ECMP group |
| buckets = nextObjective |
| .next() |
| .stream() |
| .map(DefaultGroupBucket::createSelectGroupBucket) |
| .collect(Collectors.toList()); |
| if (!buckets.isEmpty()) { |
| final GroupKey key = new DefaultGroupKey( |
| appKryo.serialize(nextObjective.id())); |
| GroupDescription groupDescription = new DefaultGroupDescription( |
| deviceId, |
| GroupDescription.Type.SELECT, |
| new GroupBuckets(buckets), |
| key, |
| null, |
| nextObjective.appId()); |
| log.debug("Creating HASHED group for next objective id {}" |
| + " in dev:{}", nextObjective.id(), deviceId); |
| pendingGroups.put(key, nextObjective); |
| groupService.addGroup(groupDescription); |
| verifyPendingGroupLater(); |
| } |
| } |
| break; |
| case BROADCAST: |
| buckets = nextObjective |
| .next() |
| .stream() |
| .map(DefaultGroupBucket::createAllGroupBucket) |
| .collect(Collectors.toList()); |
| if (!buckets.isEmpty()) { |
| final GroupKey key = new DefaultGroupKey( |
| appKryo.serialize(nextObjective |
| .id())); |
| GroupDescription groupDescription = new DefaultGroupDescription( |
| deviceId, |
| GroupDescription.Type.ALL, |
| new GroupBuckets(buckets), |
| key, |
| null, |
| nextObjective.appId()); |
| log.debug("Creating BROADCAST group for next objective id {} " |
| + "in device {}", nextObjective.id(), deviceId); |
| pendingGroups.put(key, nextObjective); |
| groupService.addGroup(groupDescription); |
| verifyPendingGroupLater(); |
| } |
| break; |
| case FAILOVER: |
| log.debug("FAILOVER next objectives not supported"); |
| fail(nextObjective, ObjectiveError.UNSUPPORTED); |
| log.warn("Unsupported next objective type {}", nextObjective.type()); |
| break; |
| default: |
| fail(nextObjective, ObjectiveError.UNKNOWN); |
| log.warn("Unknown next objective type {}", nextObjective.type()); |
| } |
| } |
| |
| private void addBucketToGroup(NextObjective nextObjective) { |
| log.debug("addBucketToGroup in {}: for next objective id {}", |
| deviceId, nextObjective.id()); |
| Collection<TrafficTreatment> treatments = nextObjective.next(); |
| TrafficTreatment treatment = treatments.iterator().next(); |
| final GroupKey key = new DefaultGroupKey( |
| appKryo.serialize(nextObjective |
| .id())); |
| Group group = groupService.getGroup(deviceId, key); |
| if (group == null) { |
| log.warn("Group is not found in {} for {}", deviceId, key); |
| return; |
| } |
| GroupBucket bucket; |
| if (group.type() == GroupDescription.Type.INDIRECT) { |
| bucket = DefaultGroupBucket.createIndirectGroupBucket(treatment); |
| } else if (group.type() == GroupDescription.Type.SELECT) { |
| bucket = DefaultGroupBucket.createSelectGroupBucket(treatment); |
| } else if (group.type() == GroupDescription.Type.ALL) { |
| bucket = DefaultGroupBucket.createAllGroupBucket(treatment); |
| } else { |
| log.warn("Unsupported Group type {}", group.type()); |
| return; |
| } |
| GroupBuckets bucketsToAdd = new GroupBuckets(Collections.singletonList(bucket)); |
| log.debug("Adding buckets to group id {} of next objective id {} in device {}", |
| group.id(), nextObjective.id(), deviceId); |
| groupService.addBucketsToGroup(deviceId, key, bucketsToAdd, key, appId); |
| } |
| |
| private void removeBucketFromGroup(NextObjective nextObjective) { |
| log.debug("removeBucketFromGroup in {}: for next objective id {}", |
| deviceId, nextObjective.id()); |
| NextGroup nextGroup = flowObjectiveStore.getNextGroup(nextObjective.id()); |
| if (nextGroup != null) { |
| Collection<TrafficTreatment> treatments = nextObjective.next(); |
| TrafficTreatment treatment = treatments.iterator().next(); |
| final GroupKey key = new DefaultGroupKey( |
| appKryo.serialize(nextObjective |
| .id())); |
| Group group = groupService.getGroup(deviceId, key); |
| if (group == null) { |
| log.warn("Group is not found in {} for {}", deviceId, key); |
| return; |
| } |
| GroupBucket bucket; |
| if (group.type() == GroupDescription.Type.INDIRECT) { |
| bucket = DefaultGroupBucket.createIndirectGroupBucket(treatment); |
| } else if (group.type() == GroupDescription.Type.SELECT) { |
| bucket = DefaultGroupBucket.createSelectGroupBucket(treatment); |
| } else if (group.type() == GroupDescription.Type.ALL) { |
| bucket = DefaultGroupBucket.createAllGroupBucket(treatment); |
| } else { |
| log.warn("Unsupported Group type {}", group.type()); |
| return; |
| } |
| GroupBuckets removeBuckets = new GroupBuckets(Collections.singletonList(bucket)); |
| log.debug("Removing buckets from group id {} of next objective id {} in device {}", |
| group.id(), nextObjective.id(), deviceId); |
| groupService.removeBucketsFromGroup(deviceId, key, removeBuckets, key, appId); |
| } |
| } |
| |
| private Collection<FlowRule> processForward(ForwardingObjective fwd) { |
| switch (fwd.flag()) { |
| case SPECIFIC: |
| return processSpecific(fwd); |
| case VERSATILE: |
| return processVersatile(fwd); |
| default: |
| fail(fwd, ObjectiveError.UNKNOWN); |
| log.warn("Unknown forwarding flag {}", fwd.flag()); |
| } |
| return Collections.emptySet(); |
| } |
| |
| private Collection<FlowRule> processVersatile(ForwardingObjective fwd) { |
| log.debug("Processing versatile forwarding objective in dev:{}", deviceId); |
| TrafficSelector selector = fwd.selector(); |
| EthTypeCriterion ethType = |
| (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE); |
| if (ethType == null) { |
| log.error("Versatile forwarding objective must include ethType"); |
| fail(fwd, ObjectiveError.UNKNOWN); |
| return Collections.emptySet(); |
| } |
| |
| if (fwd.treatment() == null && fwd.nextId() == null) { |
| log.error("VERSATILE forwarding objective needs next objective ID " |
| + "or treatment."); |
| return Collections.emptySet(); |
| } |
| // emulation of ACL table (for versatile fwd objective) requires |
| // overriding any previous instructions |
| TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment |
| .builder(); |
| treatmentBuilder.wipeDeferred(); |
| |
| if (fwd.nextId() != null) { |
| NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| if (next != null) { |
| SpringOpenGroup soGroup = appKryo.deserialize(next.data()); |
| if (soGroup.dummy) { |
| // need to convert to flow-actions |
| for (Instruction ins : soGroup.treatment.allInstructions()) { |
| treatmentBuilder.add(ins); |
| } |
| } else { |
| GroupKey key = soGroup.key; |
| Group group = groupService.getGroup(deviceId, key); |
| if (group == null) { |
| log.warn("The group left!"); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| return Collections.emptySet(); |
| } |
| treatmentBuilder.deferred().group(group.id()); |
| log.debug("Adding OUTGROUP action"); |
| } |
| } |
| } |
| |
| if (fwd.treatment() != null) { |
| if (fwd.treatment().allInstructions().size() == 1 && |
| fwd.treatment().allInstructions().get(0).type() == Instruction.Type.OUTPUT) { |
| OutputInstruction o = (OutputInstruction) fwd.treatment().allInstructions().get(0); |
| if (o.port() == PortNumber.CONTROLLER) { |
| treatmentBuilder.popVlan(); |
| treatmentBuilder.punt(); |
| } else { |
| treatmentBuilder.add(o); |
| } |
| } else { |
| for (Instruction ins : fwd.treatment().allInstructions()) { |
| treatmentBuilder.add(ins); |
| } |
| } |
| } |
| |
| FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()).withPriority(fwd.priority()) |
| .forDevice(deviceId).withSelector(fwd.selector()) |
| .withTreatment(treatmentBuilder.build()); |
| |
| if (fwd.permanent()) { |
| ruleBuilder.makePermanent(); |
| } else { |
| ruleBuilder.makeTemporary(fwd.timeout()); |
| } |
| |
| ruleBuilder.forTable(aclTableId); |
| return Collections.singletonList(ruleBuilder.build()); |
| } |
| |
| private boolean isSupportedEthTypeObjective(ForwardingObjective fwd) { |
| TrafficSelector selector = fwd.selector(); |
| EthTypeCriterion ethType = (EthTypeCriterion) selector |
| .getCriterion(Criterion.Type.ETH_TYPE); |
| if ((ethType == null) || |
| ((ethType.ethType().toShort() != Ethernet.TYPE_IPV4) && |
| (ethType.ethType().toShort() != Ethernet.MPLS_UNICAST))) { |
| return false; |
| } |
| return true; |
| } |
| |
| private boolean isSupportedEthDstObjective(ForwardingObjective fwd) { |
| TrafficSelector selector = fwd.selector(); |
| EthCriterion ethDst = (EthCriterion) selector |
| .getCriterion(Criterion.Type.ETH_DST); |
| VlanIdCriterion vlanId = (VlanIdCriterion) selector |
| .getCriterion(Criterion.Type.VLAN_VID); |
| if (ethDst == null && vlanId == null) { |
| return false; |
| } |
| return true; |
| } |
| |
| protected Collection<FlowRule> processSpecific(ForwardingObjective fwd) { |
| log.debug("Processing specific fwd objective:{} in dev:{} with next:{}", |
| fwd.id(), deviceId, fwd.nextId()); |
| boolean isEthTypeObj = isSupportedEthTypeObjective(fwd); |
| boolean isEthDstObj = isSupportedEthDstObjective(fwd); |
| |
| if (isEthTypeObj) { |
| return processEthTypeSpecificObjective(fwd); |
| } else if (isEthDstObj) { |
| return processEthDstSpecificObjective(fwd); |
| } else { |
| log.warn("processSpecific: Unsupported " |
| + "forwarding objective criteria"); |
| fail(fwd, ObjectiveError.UNSUPPORTED); |
| return Collections.emptySet(); |
| } |
| } |
| |
| protected Collection<FlowRule> |
| processEthTypeSpecificObjective(ForwardingObjective fwd) { |
| TrafficSelector selector = fwd.selector(); |
| EthTypeCriterion ethType = (EthTypeCriterion) selector |
| .getCriterion(Criterion.Type.ETH_TYPE); |
| |
| TrafficSelector.Builder filteredSelectorBuilder = |
| DefaultTrafficSelector.builder(); |
| int forTableId = -1; |
| if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) { |
| filteredSelectorBuilder = filteredSelectorBuilder |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(((IPCriterion) selector |
| .getCriterion(Criterion.Type.IPV4_DST)) |
| .ip()); |
| forTableId = ipv4UnicastTableId; |
| log.debug("processing IPv4 specific forwarding objective:{} in dev:{}", |
| fwd.id(), deviceId); |
| } else { |
| filteredSelectorBuilder = filteredSelectorBuilder |
| .matchEthType(Ethernet.MPLS_UNICAST) |
| .matchMplsLabel(((MplsCriterion) |
| selector.getCriterion(Criterion.Type.MPLS_LABEL)).label()); |
| if (selector.getCriterion(Criterion.Type.MPLS_BOS) != null) { |
| filteredSelectorBuilder.matchMplsBos(((MplsBosCriterion) |
| selector.getCriterion(Type.MPLS_BOS)).mplsBos()); |
| } |
| forTableId = mplsTableId; |
| log.debug("processing MPLS specific forwarding objective:{} in dev:{}", |
| fwd.id(), deviceId); |
| } |
| |
| TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment |
| .builder(); |
| if (fwd.treatment() != null) { |
| for (Instruction i : fwd.treatment().allInstructions()) { |
| treatmentBuilder.add(i); |
| } |
| } |
| |
| if (fwd.nextId() != null) { |
| NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| if (next != null) { |
| SpringOpenGroup soGroup = appKryo.deserialize(next.data()); |
| if (soGroup.dummy) { |
| log.debug("Adding {} flow-actions for fwd. obj. {} -> next:{} " |
| + "in dev: {}", soGroup.treatment.allInstructions().size(), |
| fwd.id(), fwd.nextId(), deviceId); |
| for (Instruction ins : soGroup.treatment.allInstructions()) { |
| treatmentBuilder.add(ins); |
| } |
| } else { |
| GroupKey key = soGroup.key; |
| Group group = groupService.getGroup(deviceId, key); |
| if (group == null) { |
| log.warn("The group left!"); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| return Collections.emptySet(); |
| } |
| treatmentBuilder.deferred().group(group.id()); |
| log.debug("Adding OUTGROUP action to group:{} for fwd. obj. {} " |
| + "for next:{} in dev: {}", group.id(), fwd.id(), |
| fwd.nextId(), deviceId); |
| } |
| } else { |
| log.warn("processSpecific: No associated next objective object"); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| return Collections.emptySet(); |
| } |
| } |
| |
| TrafficSelector filteredSelector = filteredSelectorBuilder.build(); |
| TrafficTreatment treatment = treatmentBuilder.transition(aclTableId) |
| .build(); |
| |
| FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()).withPriority(fwd.priority()) |
| .forDevice(deviceId).withSelector(filteredSelector) |
| .withTreatment(treatment); |
| |
| if (fwd.permanent()) { |
| ruleBuilder.makePermanent(); |
| } else { |
| ruleBuilder.makeTemporary(fwd.timeout()); |
| } |
| |
| ruleBuilder.forTable(forTableId); |
| return Collections.singletonList(ruleBuilder.build()); |
| |
| } |
| |
| protected Collection<FlowRule> |
| processEthDstSpecificObjective(ForwardingObjective fwd) { |
| List<FlowRule> rules = new ArrayList<>(); |
| |
| // Build filtered selector |
| TrafficSelector selector = fwd.selector(); |
| EthCriterion ethCriterion = (EthCriterion) selector |
| .getCriterion(Criterion.Type.ETH_DST); |
| VlanIdCriterion vlanIdCriterion = (VlanIdCriterion) selector |
| .getCriterion(Criterion.Type.VLAN_VID); |
| TrafficSelector.Builder filteredSelectorBuilder = |
| DefaultTrafficSelector.builder(); |
| // Do not match MacAddress for subnet broadcast entry |
| if (!ethCriterion.mac().equals(MacAddress.NONE)) { |
| filteredSelectorBuilder.matchEthDst(ethCriterion.mac()); |
| log.debug("processing L2 forwarding objective:{} in dev:{}", |
| fwd.id(), deviceId); |
| } else { |
| log.debug("processing L2 Broadcast forwarding objective:{} " |
| + "in dev:{} for vlan:{}", |
| fwd.id(), deviceId, vlanIdCriterion.vlanId()); |
| } |
| filteredSelectorBuilder.matchVlanId(vlanIdCriterion.vlanId()); |
| TrafficSelector filteredSelector = filteredSelectorBuilder.build(); |
| |
| // Build filtered treatment |
| TrafficTreatment.Builder treatmentBuilder = |
| DefaultTrafficTreatment.builder(); |
| if (fwd.treatment() != null) { |
| treatmentBuilder.deferred(); |
| fwd.treatment().allInstructions().forEach(treatmentBuilder::add); |
| } |
| if (fwd.nextId() != null) { |
| NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| if (next != null) { |
| SpringOpenGroup soGrp = appKryo.deserialize(next.data()); |
| if (soGrp.dummy) { |
| log.debug("Adding {} flow-actions for fwd. obj. {} " |
| + "in dev: {}", soGrp.treatment.allInstructions().size(), |
| fwd.id(), deviceId); |
| for (Instruction ins : soGrp.treatment.allInstructions()) { |
| treatmentBuilder.deferred().add(ins); |
| } |
| } else { |
| GroupKey key = soGrp.key; |
| Group group = groupService.getGroup(deviceId, key); |
| if (group == null) { |
| log.warn("The group left!"); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| return Collections.emptySet(); |
| } |
| treatmentBuilder.deferred().group(group.id()); |
| log.debug("Adding OUTGROUP action to group:{} for fwd. obj. {} " |
| + "in dev: {}", group.id(), fwd.id(), deviceId); |
| } |
| } |
| } |
| treatmentBuilder.immediate().transition(aclTableId); |
| TrafficTreatment filteredTreatment = treatmentBuilder.build(); |
| |
| // Build bridging table entries |
| FlowRule.Builder flowRuleBuilder = DefaultFlowRule.builder(); |
| flowRuleBuilder.fromApp(fwd.appId()) |
| .withPriority(fwd.priority()) |
| .forDevice(deviceId) |
| .withSelector(filteredSelector) |
| .withTreatment(filteredTreatment) |
| .forTable(dstMacTableId); |
| if (fwd.permanent()) { |
| flowRuleBuilder.makePermanent(); |
| } else { |
| flowRuleBuilder.makeTemporary(fwd.timeout()); |
| } |
| rules.add(flowRuleBuilder.build()); |
| |
| /* |
| // TODO Emulate source MAC table behavior |
| // Do not install source MAC table entry for subnet broadcast |
| if (!ethCriterion.mac().equals(MacAddress.NONE)) { |
| // Build filtered selector |
| selector = fwd.selector(); |
| ethCriterion = (EthCriterion) selector.getCriterion(Criterion.Type.ETH_DST); |
| filteredSelectorBuilder = DefaultTrafficSelector.builder(); |
| filteredSelectorBuilder.matchEthSrc(ethCriterion.mac()); |
| filteredSelector = filteredSelectorBuilder.build(); |
| |
| // Build empty treatment. Apply existing instruction if match. |
| treatmentBuilder = DefaultTrafficTreatment.builder(); |
| filteredTreatment = treatmentBuilder.build(); |
| |
| // Build bridging table entries |
| flowRuleBuilder = DefaultFlowRule.builder(); |
| flowRuleBuilder.fromApp(fwd.appId()) |
| .withPriority(fwd.priority()) |
| .forDevice(deviceId) |
| .withSelector(filteredSelector) |
| .withTreatment(filteredTreatment) |
| .forTable(srcMacTableId) |
| .makePermanent(); |
| rules.add(flowRuleBuilder.build()); |
| } |
| */ |
| |
| return rules; |
| } |
| |
| /* |
| * Note: CpqD switches do not handle MPLS-related operation properly |
| * for a packet with VLAN tag. We pop VLAN here as a workaround. |
| * Side effect: HostService learns redundant hosts with same MAC but |
| * different VLAN. No known side effect on the network reachability. |
| */ |
| protected List<FlowRule> processEthDstFilter(EthCriterion ethCriterion, |
| VlanIdCriterion vlanIdCriterion, |
| FilteringObjective filt, |
| VlanId assignedVlan, |
| ApplicationId applicationId) { |
| if (vlanIdCriterion == null) { |
| return processEthDstOnlyFilter(ethCriterion, applicationId, filt.priority()); |
| } |
| |
| //handling untagged packets via assigned VLAN |
| if (vlanIdCriterion.vlanId() == VlanId.NONE) { |
| vlanIdCriterion = (VlanIdCriterion) Criteria.matchVlanId(assignedVlan); |
| } |
| |
| List<FlowRule> rules = new ArrayList<>(); |
| TrafficSelector.Builder selectorIp = DefaultTrafficSelector |
| .builder(); |
| TrafficTreatment.Builder treatmentIp = DefaultTrafficTreatment |
| .builder(); |
| selectorIp.matchEthDst(ethCriterion.mac()); |
| selectorIp.matchEthType(Ethernet.TYPE_IPV4); |
| selectorIp.matchVlanId(vlanIdCriterion.vlanId()); |
| treatmentIp.popVlan(); |
| treatmentIp.transition(ipv4UnicastTableId); |
| FlowRule ruleIp = DefaultFlowRule.builder().forDevice(deviceId) |
| .withSelector(selectorIp.build()) |
| .withTreatment(treatmentIp.build()) |
| .withPriority(filt.priority()).fromApp(applicationId) |
| .makePermanent().forTable(tmacTableId).build(); |
| log.debug("adding IP ETH rule for MAC: {}", ethCriterion.mac()); |
| rules.add(ruleIp); |
| |
| TrafficSelector.Builder selectorMpls = DefaultTrafficSelector |
| .builder(); |
| TrafficTreatment.Builder treatmentMpls = DefaultTrafficTreatment |
| .builder(); |
| selectorMpls.matchEthDst(ethCriterion.mac()); |
| selectorMpls.matchEthType(Ethernet.MPLS_UNICAST); |
| selectorMpls.matchVlanId(vlanIdCriterion.vlanId()); |
| treatmentMpls.popVlan(); |
| treatmentMpls.transition(mplsTableId); |
| FlowRule ruleMpls = DefaultFlowRule.builder() |
| .forDevice(deviceId).withSelector(selectorMpls.build()) |
| .withTreatment(treatmentMpls.build()) |
| .withPriority(filt.priority()).fromApp(applicationId) |
| .makePermanent().forTable(tmacTableId).build(); |
| log.debug("adding MPLS ETH rule for MAC: {}", ethCriterion.mac()); |
| rules.add(ruleMpls); |
| |
| return rules; |
| } |
| |
| protected List<FlowRule> processEthDstOnlyFilter(EthCriterion ethCriterion, |
| ApplicationId applicationId, int priority) { |
| TrafficSelector.Builder selector = DefaultTrafficSelector.builder(); |
| TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder(); |
| selector.matchEthType(Ethernet.TYPE_IPV4); |
| selector.matchEthDst(ethCriterion.mac()); |
| treatment.transition(TABLE_IPV4_UNICAST); |
| FlowRule rule = DefaultFlowRule.builder() |
| .forDevice(deviceId) |
| .withSelector(selector.build()) |
| .withTreatment(treatment.build()) |
| .withPriority(priority) |
| .fromApp(applicationId) |
| .makePermanent() |
| .forTable(TABLE_TMAC).build(); |
| return ImmutableList.<FlowRule>builder().add(rule).build(); |
| } |
| |
| protected List<FlowRule> processVlanIdFilter(VlanIdCriterion vlanIdCriterion, |
| FilteringObjective filt, |
| VlanId assignedVlan, VlanId explicitlyAssignedVlan, VlanId pushedVlan, |
| boolean pushVlan, boolean popVlan, |
| ApplicationId applicationId) { |
| List<FlowRule> rules = new ArrayList<>(); |
| log.debug("adding rule for VLAN: {}", vlanIdCriterion.vlanId()); |
| TrafficSelector.Builder selector = DefaultTrafficSelector |
| .builder(); |
| TrafficTreatment.Builder treatment = DefaultTrafficTreatment |
| .builder(); |
| PortCriterion p = (PortCriterion) filt.key(); |
| if (vlanIdCriterion.vlanId() != VlanId.NONE) { |
| selector.matchVlanId(vlanIdCriterion.vlanId()); |
| selector.matchInPort(p.port()); |
| if (popVlan) { |
| // Pop outer tag |
| treatment.immediate().popVlan(); |
| } |
| if (explicitlyAssignedVlan != null && (!popVlan || !vlanIdCriterion.vlanId().equals(assignedVlan))) { |
| // Modify VLAN ID on single tagged packet or modify remaining tag after popping |
| // In the first case, do not set VLAN ID again to the already existing value |
| treatment.immediate().setVlanId(explicitlyAssignedVlan); |
| } |
| if (pushVlan) { |
| // Push new tag |
| treatment.immediate().pushVlan().setVlanId(pushedVlan); |
| } |
| } else { |
| selector.matchInPort(p.port()); |
| treatment.immediate().pushVlan().setVlanId(assignedVlan); |
| } |
| treatment.transition(tmacTableId); |
| FlowRule rule = DefaultFlowRule.builder().forDevice(deviceId) |
| .withSelector(selector.build()) |
| .withTreatment(treatment.build()) |
| .withPriority(filt.priority()).fromApp(applicationId) |
| .makePermanent().forTable(vlanTableId).build(); |
| rules.add(rule); |
| |
| return rules; |
| } |
| |
| private void processFilter(FilteringObjective filt, boolean install, |
| ApplicationId applicationId) { |
| // This driver only processes filtering criteria defined with switch |
| // ports as the key |
| if (filt.key().equals(Criteria.dummy()) |
| || filt.key().type() != Criterion.Type.IN_PORT) { |
| log.warn("No key defined in filtering objective from app: {}. Not" |
| + "processing filtering objective", applicationId); |
| fail(filt, ObjectiveError.UNKNOWN); |
| return; |
| } |
| |
| EthCriterion ethCriterion = null; |
| VlanIdCriterion vlanIdCriterion = null; |
| |
| // convert filtering conditions for switch-intfs into flowrules |
| FlowRuleOperations.Builder ops = FlowRuleOperations.builder(); |
| |
| for (Criterion criterion : filt.conditions()) { |
| if (criterion.type() == Criterion.Type.ETH_DST) { |
| ethCriterion = (EthCriterion) criterion; |
| } else if (criterion.type() == Criterion.Type.VLAN_VID) { |
| vlanIdCriterion = (VlanIdCriterion) criterion; |
| } else if (criterion.type() == Criterion.Type.IPV4_DST) { |
| log.debug("driver does not process IP filtering rules as it " + |
| "sends all misses in the IP table to the controller"); |
| } else { |
| log.warn("Driver does not currently process filtering condition" |
| + " of type: {}", criterion.type()); |
| fail(filt, ObjectiveError.UNSUPPORTED); |
| } |
| } |
| |
| VlanId assignedVlan = null; |
| VlanId modifiedVlan = null; |
| VlanId pushedVlan = null; |
| boolean pushVlan = false; |
| boolean popVlan = false; |
| if (vlanIdCriterion != null) { |
| if (filt.meta() != null) { |
| for (Instruction i : filt.meta().allInstructions()) { |
| if (i instanceof L2ModificationInstruction) { |
| if (((L2ModificationInstruction) i).subtype() |
| .equals(L2ModificationInstruction.L2SubType.VLAN_PUSH)) { |
| pushVlan = true; |
| } else if (((L2ModificationInstruction) i).subtype() |
| .equals(L2ModificationInstruction.L2SubType.VLAN_POP)) { |
| if (modifiedVlan != null) { |
| log.error("Pop tag is not allowed after modify VLAN operation " + |
| "in filtering objective", deviceId); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| popVlan = true; |
| } |
| } |
| if (i instanceof ModVlanIdInstruction) { |
| if (pushVlan && vlanIdCriterion.vlanId() != VlanId.NONE) { |
| // Modify VLAN should not appear after pushing a new tag |
| if (pushedVlan != null) { |
| log.error("Modify VLAN not allowed after push tag operation " + |
| "in filtering objective", deviceId); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| pushedVlan = ((ModVlanIdInstruction) i).vlanId(); |
| } else if (vlanIdCriterion.vlanId() == VlanId.NONE) { |
| // For untagged packets the pushed VLAN ID will be saved in assignedVlan |
| // just to ensure the driver works as designed for the fabric use case |
| assignedVlan = ((ModVlanIdInstruction) i).vlanId(); |
| } else { |
| // For tagged packets modifiedVlan will contain the modified value of existing tag |
| if (modifiedVlan != null) { |
| log.error("Driver does not allow multiple modify VLAN operations " + |
| "in the same filtering objective", deviceId); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| modifiedVlan = ((ModVlanIdInstruction) i).vlanId(); |
| } |
| } |
| } |
| } |
| |
| // For VLAN cross-connect packets, use the configured VLAN unless there is an explicitly provided VLAN ID |
| if (vlanIdCriterion.vlanId() != VlanId.NONE) { |
| if (assignedVlan == null) { |
| assignedVlan = vlanIdCriterion.vlanId(); |
| } |
| // For untagged packets, assign a VLAN ID |
| } else { |
| if (filt.meta() == null) { |
| log.error("Missing metadata in filtering objective required " + |
| "for vlan assignment in dev {}", deviceId); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| if (assignedVlan == null) { |
| log.error("Driver requires an assigned vlan-id to tag incoming " |
| + "untagged packets. Not processing vlan filters on " |
| + "device {}", deviceId); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| } |
| if (pushVlan && popVlan) { |
| log.error("Cannot push and pop vlan in the same filtering objective"); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| if (popVlan && vlanIdCriterion.vlanId() == VlanId.NONE) { |
| log.error("Cannot pop vlan for untagged packets"); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| if ((pushVlan && pushedVlan == null) && vlanIdCriterion.vlanId() != VlanId.NONE) { |
| log.error("No VLAN ID provided for push tag operation"); |
| fail(filt, ObjectiveError.BADPARAMS); |
| return; |
| } |
| } |
| |
| if (ethCriterion == null) { |
| log.debug("filtering objective missing dstMac, cannot program TMAC table"); |
| } else { |
| for (FlowRule tmacRule : processEthDstFilter(ethCriterion, |
| vlanIdCriterion, |
| filt, |
| assignedVlan, |
| applicationId)) { |
| log.debug("adding MAC filtering rules in TMAC table: {} for dev: {}", |
| tmacRule, deviceId); |
| ops = install ? ops.add(tmacRule) : ops.remove(tmacRule); |
| } |
| } |
| |
| if (vlanIdCriterion == null) { |
| log.debug("filtering objective missing VLAN ID criterion, " |
| + "cannot program VLAN Table"); |
| } else { |
| for (FlowRule vlanRule : processVlanIdFilter(vlanIdCriterion, |
| filt, |
| assignedVlan, modifiedVlan, pushedVlan, |
| pushVlan, popVlan, |
| applicationId)) { |
| log.debug("adding VLAN filtering rule in VLAN table: {} for dev: {}", |
| vlanRule, deviceId); |
| ops = install ? ops.add(vlanRule) : ops.remove(vlanRule); |
| } |
| } |
| |
| // apply filtering flow rules |
| flowRuleService.apply(ops.build(new FlowRuleOperationsContext() { |
| @Override |
| public void onSuccess(FlowRuleOperations ops) { |
| pass(filt); |
| log.debug("Provisioned tables in {} with fitering " |
| + "rules", deviceId); |
| } |
| |
| @Override |
| public void onError(FlowRuleOperations ops) { |
| fail(filt, ObjectiveError.FLOWINSTALLATIONFAILED); |
| log.warn("Failed to provision tables in {} with " |
| + "fitering rules", deviceId); |
| } |
| })); |
| } |
| |
| protected void setTableMissEntries() { |
| // set all table-miss-entries |
| populateTableMissEntry(vlanTableId, true, false, false, -1); |
| populateTableMissEntry(tmacTableId, false, false, true, dstMacTableId); |
| populateTableMissEntry(ipv4UnicastTableId, false, true, true, aclTableId); |
| populateTableMissEntry(mplsTableId, false, true, true, aclTableId); |
| populateTableMissEntry(dstMacTableId, false, false, true, aclTableId); |
| populateTableMissEntry(aclTableId, false, false, false, -1); |
| } |
| |
| protected void populateTableMissEntry(int tableToAdd, |
| boolean toControllerNow, |
| boolean toControllerWrite, |
| boolean toTable, int tableToSend) { |
| TrafficSelector selector = DefaultTrafficSelector.builder().build(); |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| |
| if (toControllerNow) { |
| tBuilder.setOutput(PortNumber.CONTROLLER); |
| } |
| |
| if (toControllerWrite) { |
| tBuilder.deferred().setOutput(PortNumber.CONTROLLER); |
| } |
| |
| if (toTable) { |
| tBuilder.transition(tableToSend); |
| } |
| |
| FlowRule flow = DefaultFlowRule.builder().forDevice(deviceId) |
| .withSelector(selector).withTreatment(tBuilder.build()) |
| .withPriority(0).fromApp(appId).makePermanent() |
| .forTable(tableToAdd).build(); |
| |
| flowRuleService.applyFlowRules(flow); |
| } |
| |
| private void pass(Objective obj) { |
| obj.context().ifPresent(context -> context.onSuccess(obj)); |
| } |
| |
| protected void fail(Objective obj, ObjectiveError error) { |
| obj.context().ifPresent(context -> context.onError(obj, error)); |
| } |
| |
| private class InnerGroupListener implements GroupListener { |
| @Override |
| public void event(GroupEvent event) { |
| if (event.type() == GroupEvent.Type.GROUP_ADDED) { |
| log.trace("InnerGroupListener: Group ADDED " |
| + "event received in device {}", deviceId); |
| GroupKey key = event.subject().appCookie(); |
| |
| NextObjective obj = pendingGroups.getIfPresent(key); |
| if (obj != null) { |
| log.debug("Group verified: dev:{} gid:{} <<->> nextId:{}", |
| deviceId, event.subject().id(), obj.id()); |
| flowObjectiveStore |
| .putNextGroup(obj.id(), |
| new SpringOpenGroup(key, null)); |
| pass(obj); |
| pendingGroups.invalidate(key); |
| } |
| } else if (event.type() == GroupEvent.Type.GROUP_ADD_FAILED) { |
| log.warn("InnerGroupListener: Group ADD " |
| + "failed event received in device {}", deviceId); |
| } |
| } |
| } |
| |
| private void verifyPendingGroupLater() { |
| GROUP_CHECKER.schedule(new GroupChecker(), CHECK_DELAY, TimeUnit.MILLISECONDS); |
| } |
| |
| private class GroupChecker implements Runnable { |
| |
| @Override |
| public void run() { |
| Set<GroupKey> keys = pendingGroups |
| .asMap() |
| .keySet() |
| .stream() |
| .filter(key -> groupService.getGroup(deviceId, key) != null) |
| .collect(Collectors.toSet()); |
| |
| keys.forEach(key -> { |
| NextObjective obj = pendingGroups |
| .getIfPresent(key); |
| if (obj == null) { |
| return; |
| } |
| log.debug("Group verified: dev:{} gid:{} <<->> nextId:{}", |
| deviceId, |
| groupService.getGroup(deviceId, key).id(), |
| obj.id()); |
| pass(obj); |
| pendingGroups.invalidate(key); |
| flowObjectiveStore.putNextGroup( |
| obj.id(), |
| new SpringOpenGroup(key, null)); |
| }); |
| |
| if (!pendingGroups.asMap().isEmpty()) { |
| // Periodically execute only if entry remains in pendingGroups. |
| // Iterating pendingGroups trigger cleanUp and expiration, |
| // which will eventually empty the pendingGroups. |
| verifyPendingGroupLater(); |
| } |
| } |
| } |
| |
| /** |
| * SpringOpenGroup can either serve as storage for a GroupKey which can be |
| * used to fetch the group from the Group Service, or it can be serve as storage |
| * for Traffic Treatments which can be used as flow actions. In the latter |
| * case, we refer to this as a dummy group. |
| * |
| */ |
| protected class SpringOpenGroup implements NextGroup { |
| private final boolean dummy; |
| private final GroupKey key; |
| private final TrafficTreatment treatment; |
| |
| /** |
| * Storage for a GroupKey or a TrafficTreatment. One of the params |
| * to this constructor must be null. |
| * @param key represents a GroupKey |
| * @param treatment represents flow actions in a dummy group |
| */ |
| public SpringOpenGroup(GroupKey key, TrafficTreatment treatment) { |
| if (key == null) { |
| this.key = new DefaultGroupKey(new byte[]{0}); |
| this.treatment = treatment; |
| this.dummy = true; |
| } else { |
| this.key = key; |
| this.treatment = DefaultTrafficTreatment.builder().build(); |
| this.dummy = false; |
| } |
| } |
| |
| public GroupKey key() { |
| return key; |
| } |
| |
| public boolean dummy() { |
| return dummy; |
| } |
| |
| public TrafficTreatment treatment() { |
| return treatment; |
| } |
| |
| @Override |
| public byte[] data() { |
| return appKryo.serialize(this); |
| } |
| |
| } |
| |
| @Override |
| public List<String> getNextMappings(NextGroup nextGroup) { |
| // TODO Implementation deferred to vendor |
| return null; |
| } |
| } |