Examples with NextGroup org.onosproject.net.behaviour.NextGroup used on opensource projects

Example 11 with NextGroup

use of org.onosproject.net.behaviour.NextGroup in project onos by opennetworkinglab.

the class CentecV350Pipeline method processSpecific.

private Collection<FlowRule> processSpecific(ForwardingObjective fwd) {
    log.debug("Processing specific forwarding objective");
    TrafficSelector selector = fwd.selector();
    EthTypeCriterion ethType = (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE);
    if (ethType == null || ethType.ethType().toShort() != Ethernet.TYPE_IPV4) {
        fail(fwd, ObjectiveError.UNSUPPORTED);
        return Collections.emptySet();
    }
    // Must have metadata as key.
    TrafficSelector filteredSelector = DefaultTrafficSelector.builder().matchEthType(Ethernet.TYPE_IPV4).matchMetadata(DEFAULT_METADATA).matchIPDst(((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip()).build();
    TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder();
    if (fwd.nextId() != null) {
        NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId());
        GroupKey key = appKryo.deserialize(next.data());
        Group group = groupService.getGroup(deviceId, key);
        if (group == null) {
            log.warn("The group left!");
            fail(fwd, ObjectiveError.GROUPMISSING);
            return Collections.emptySet();
        }
        tb.group(group.id());
    }
    FlowRule.Builder ruleBuilder = DefaultFlowRule.builder().fromApp(fwd.appId()).withPriority(ROUTE_TABLE_PRIORITY).forDevice(deviceId).withSelector(filteredSelector).withTreatment(tb.build());
    if (fwd.permanent()) {
        ruleBuilder.makePermanent();
    } else {
        ruleBuilder.makeTemporary(fwd.timeout());
    }
    ruleBuilder.forTable(ROUTE_TABLE);
    return Collections.singletonList(ruleBuilder.build());
}

Example 12 with NextGroup

use of org.onosproject.net.behaviour.NextGroup in project onos by opennetworkinglab.

the class DefaultSingleTablePipeline method next.

@Override
public void next(NextObjective nextObjective) {
    switch(nextObjective.op()) {
        case ADD:
            // Check next objective
            TrafficTreatment treatment = getTreatment(nextObjective);
            if (treatment == null) {
                // unsupported next objective
                nextObjective.context().ifPresent(context -> context.onError(nextObjective, ObjectiveError.UNSUPPORTED));
                return;
            }
            // We insert the value in the cache
            pendingAddNext.put(nextObjective.id(), nextObjective);
            // Then in the store, this will unblock the queued fwd obj
            flowObjectiveStore.putNextGroup(nextObjective.id(), new SingleGroup(treatment));
            break;
        case REMOVE:
            NextGroup next = flowObjectiveStore.removeNextGroup(nextObjective.id());
            if (next == null) {
                nextObjective.context().ifPresent(context -> context.onError(nextObjective, ObjectiveError.GROUPMISSING));
                return;
            }
            break;
        default:
            log.warn("Unsupported operation {}", nextObjective.op());
    }
    nextObjective.context().ifPresent(context -> context.onSuccess(nextObjective));
}

Example 13 with NextGroup

use of org.onosproject.net.behaviour.NextGroup in project onos by opennetworkinglab.

the class SoftRouterPipeline method processVersatile.

/**
 * SoftRouter has a single versatile table - the filter table.
 * This table can be used to filter entries that reach the next table (FIB table).
 * It can also be used to punt packets to the controller and/or bypass
 * the FIB table to forward out of a port.
 *
 * @param fwd The forwarding objective of type versatile
 * @return  A collection of flow rules meant to be delivered to the flowrule
 *          subsystem. May return empty collection in case of failures.
 */
private Collection<FlowRule> processVersatile(ForwardingObjective fwd) {
    log.debug("Received versatile fwd: to next:{}", fwd.nextId());
    Collection<FlowRule> flowrules = new ArrayList<>();
    if (fwd.nextId() == null && fwd.treatment() == null) {
        log.error("Forwarding objective {} from {} must contain " + "nextId or Treatment", fwd.selector(), fwd.appId());
        return Collections.emptySet();
    }
    int tableId = FILTER_TABLE;
    // so that it only takes effect if the packet misses the FIB rules
    if (fwd.treatment() != null && containsPunt(fwd.treatment()) && fwd.selector() != null && matchesIp(fwd.selector()) && !matchesControlTraffic(fwd.selector())) {
        tableId = FIB_TABLE;
    }
    TrafficTreatment.Builder ttBuilder = DefaultTrafficTreatment.builder();
    if (fwd.treatment() != null) {
        fwd.treatment().immediate().forEach(ins -> ttBuilder.add(ins));
    }
    // convert nextId to flow actions
    if (fwd.nextId() != null) {
        // only acceptable value is output to port
        NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId());
        if (next == null) {
            log.error("next-id {} does not exist in store", fwd.nextId());
            return Collections.emptySet();
        }
        TrafficTreatment nt = appKryo.deserialize(next.data());
        if (nt == null) {
            log.error("Error in deserializing next-id {}", fwd.nextId());
            return Collections.emptySet();
        }
        for (Instruction ins : nt.allInstructions()) {
            if (ins instanceof OutputInstruction) {
                ttBuilder.add(ins);
            }
        }
    }
    FlowRule rule = DefaultFlowRule.builder().withSelector(fwd.selector()).withTreatment(ttBuilder.build()).forTable(tableId).makePermanent().forDevice(deviceId).fromApp(fwd.appId()).withPriority(fwd.priority()).build();
    flowrules.add(rule);
    return flowrules;
}

Example 14 with NextGroup

use of org.onosproject.net.behaviour.NextGroup in project onos by opennetworkinglab.

the class SpringOpenTTPDell method processSpecific.

@Override
protected // ETH_DST match condition while pushing IP table flow rules
Collection<FlowRule> processSpecific(ForwardingObjective fwd) {
    log.debug("Processing specific");
    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)) {
        log.debug("processSpecific: Unsupported " + "forwarding objective criteraia");
        fail(fwd, ObjectiveError.UNSUPPORTED);
        return Collections.emptySet();
    }
    TrafficSelector.Builder filteredSelectorBuilder = DefaultTrafficSelector.builder();
    int forTableId = -1;
    if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) {
        if (deviceTMac == null) {
            log.debug("processSpecific: ETH_DST filtering " + "objective is not set which is required " + "before sending a IPv4 forwarding objective");
            // TODO: Map the error to more appropriate error code.
            fail(fwd, ObjectiveError.DEVICEMISSING);
            return Collections.emptySet();
        }
        filteredSelectorBuilder = filteredSelectorBuilder.matchEthType(Ethernet.TYPE_IPV4).matchEthDst(deviceTMac).matchIPDst(((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip());
        forTableId = ipv4UnicastTableId;
        log.debug("processing IPv4 specific forwarding objective");
    } 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(Criterion.Type.MPLS_BOS)).mplsBos());
        }
        forTableId = mplsTableId;
        log.debug("processing MPLS specific forwarding objective");
    }
    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 {
                Group group = groupService.getGroup(deviceId, soGroup.key());
                if (group == null) {
                    log.warn("The group left!");
                    fail(fwd, ObjectiveError.GROUPMISSING);
                    return Collections.emptySet();
                }
                treatmentBuilder.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());
}

Example 15 with NextGroup

use of org.onosproject.net.behaviour.NextGroup in project onos by opennetworkinglab.

the class Ofdpa2GroupHandler method removeBucket.

/**
 * Removes top-level buckets from a group that represents the given next objective.
 *
 * @param chainsToRemove a list of group bucket chains to remove
 * @param nextObjective the next objective that contains information for the
 *                  buckets to be removed from the group
 */
protected void removeBucket(List<Deque<GroupKey>> chainsToRemove, NextObjective nextObjective) {
    List<GroupBucket> bucketsToRemove = Lists.newArrayList();
    // first group key is the one we want to modify
    GroupKey modGroupKey = chainsToRemove.get(0).peekFirst();
    Group modGroup = groupService.getGroup(deviceId, modGroupKey);
    if (modGroup == null) {
        log.warn("removeBucket(): Attempt to modify non-existent group {} for device {}", modGroupKey, deviceId);
        return;
    }
    for (Deque<GroupKey> foundChain : chainsToRemove) {
        // second group key is the one we wish to remove the reference to
        if (foundChain.size() < 2) {
            // additional check to make sure second group key exists in
            // the chain.
            log.warn("Can't find second group key from chain {}", foundChain);
            continue;
        }
        GroupKey pointedGroupKey = foundChain.stream().collect(Collectors.toList()).get(1);
        Group pointedGroup = groupService.getGroup(deviceId, pointedGroupKey);
        if (pointedGroup == null) {
            continue;
        }
        GroupBucket bucket;
        if (nextObjective.type() == NextObjective.Type.HASHED) {
            bucket = DefaultGroupBucket.createSelectGroupBucket(DefaultTrafficTreatment.builder().group(pointedGroup.id()).build());
        } else {
            bucket = DefaultGroupBucket.createAllGroupBucket(DefaultTrafficTreatment.builder().group(pointedGroup.id()).build());
        }
        bucketsToRemove.add(bucket);
    }
    GroupBuckets removeBuckets = new GroupBuckets(bucketsToRemove);
    // for debug log
    List<String> pointedGroupIds;
    pointedGroupIds = bucketsToRemove.stream().map(GroupBucket::treatment).map(TrafficTreatment::allInstructions).flatMap(List::stream).filter(inst -> inst instanceof Instructions.GroupInstruction).map(inst -> (Instructions.GroupInstruction) inst).map(Instructions.GroupInstruction::groupId).map(GroupId::id).map(Integer::toHexString).map(id -> HEX_PREFIX + id).collect(Collectors.toList());
    log.debug("Removing buckets from group id 0x{} pointing to group id(s) {} " + "for next id {} in device {}", Integer.toHexString(modGroup.id().id()), pointedGroupIds, nextObjective.id(), deviceId);
    addPendingUpdateNextObjective(modGroupKey, nextObjective);
    groupService.removeBucketsFromGroup(deviceId, modGroupKey, removeBuckets, modGroupKey, nextObjective.appId());
    // potentially stale copy of allActiveKeys
    synchronized (flowObjectiveStore) {
        // get a fresh copy of what the store holds
        NextGroup next = flowObjectiveStore.getNextGroup(nextObjective.id());
        List<Deque<GroupKey>> allActiveKeys = appKryo.deserialize(next.data());
        allActiveKeys = Lists.newArrayList(allActiveKeys);
        // Note that since we got a new object, and ArrayDeque does not implement
        // Object.equals(), we have to check the deque elems one by one
        allActiveKeys.removeIf(active -> chainsToRemove.stream().anyMatch(remove -> Arrays.equals(remove.toArray(new GroupKey[0]), active.toArray(new GroupKey[0]))));
        // top level group which still exists.
        if (allActiveKeys.isEmpty()) {
            ArrayDeque<GroupKey> top = new ArrayDeque<>();
            top.add(modGroupKey);
            allActiveKeys.add(top);
        }
        flowObjectiveStore.putNextGroup(nextObjective.id(), new OfdpaNextGroup(allActiveKeys, nextObjective));
    }
}