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

Example 6 with NextGroup

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

the class Ofdpa2Pipeline method next.

@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);
            groupHandler.addGroup(nextObjective);
            break;
        case ADD_TO_EXISTING:
            if (nextGroup != null) {
                log.debug("Processing NextObjective id {} in dev {} - add bucket", nextObjective.id(), deviceId);
                groupHandler.addBucketToGroup(nextObjective, nextGroup);
            } else {
                // it is possible that group-chain has not been fully created yet
                log.debug("Waiting to add bucket to group for next-id:{} in dev:{}", nextObjective.id(), deviceId);
                // by design multiple pending bucket is allowed for the group
                groupHandler.pendingBuckets.compute(nextObjective.id(), (nextId, pendBkts) -> {
                    if (pendBkts == null) {
                        pendBkts = Sets.newHashSet();
                    }
                    pendBkts.add(nextObjective);
                    return pendBkts;
                });
            }
            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);
            groupHandler.removeGroup(nextObjective, nextGroup);
            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);
            groupHandler.removeBucketFromGroup(nextObjective, nextGroup);
            break;
        case MODIFY:
            if (nextGroup == null) {
                log.warn("Cannot modify next {} that does not exist in device {}", nextObjective.id(), deviceId);
                return;
            }
            log.debug("Processing NextObjective id {} in dev {} group {} - modify bucket", nextObjective.id(), deviceId, nextGroup);
            groupHandler.modifyBucketFromGroup(nextObjective, nextGroup);
            break;
        case VERIFY:
            if (nextGroup == null) {
                log.warn("Cannot verify next {} that does not exist in device {}", nextObjective.id(), deviceId);
                return;
            }
            log.debug("Processing NextObjective id {} in dev {} - verify", nextObjective.id(), deviceId);
            groupHandler.verifyGroup(nextObjective, nextGroup);
            break;
        default:
            log.warn("Unsupported operation {}", nextObjective.op());
    }
}

Example 7 with NextGroup

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

the class Ofdpa2Pipeline method processEthTypeSpecificInternal.

/**
 * Internal implementation of processEthTypeSpecific.
 * <p>
 * Wildcarded IPv4_DST is not supported in OFDPA i12. Therefore, we break
 * the rule into 0.0.0.0/1 and 128.0.0.0/1.
 * The allowDefaultRoute must be set to false for OFDPA i12.
 * </p>
 *
 * @param fwd the forwarding objective
 * @param allowDefaultRoute allow wildcarded IPv4_DST or not
 * @param mplsNextTable next MPLS table
 * @return A collection of flow rules, or an empty set
 */
protected Collection<FlowRule> processEthTypeSpecificInternal(ForwardingObjective fwd, boolean allowDefaultRoute, int mplsNextTable) {
    TrafficSelector selector = fwd.selector();
    EthTypeCriterion ethType = (EthTypeCriterion) selector.getCriterion(Criterion.Type.ETH_TYPE);
    boolean emptyGroup = false;
    int forTableId;
    TrafficSelector.Builder filteredSelector = DefaultTrafficSelector.builder();
    TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder();
    TrafficSelector.Builder complementarySelector = DefaultTrafficSelector.builder();
    if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) {
        if (buildIpv4Selector(filteredSelector, complementarySelector, fwd, allowDefaultRoute) < 0) {
            return Collections.emptyList();
        }
        // We need to set properly the next table
        IpPrefix ipv4Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip();
        if (ipv4Dst.isMulticast()) {
            forTableId = MULTICAST_ROUTING_TABLE;
        } else {
            forTableId = UNICAST_ROUTING_TABLE;
        }
    // TODO decrementing IP ttl is done automatically for routing, this
    // action is ignored or rejected in ofdpa as it is not fully implemented
    // if (fwd.treatment() != null) {
    // for (Instruction instr : fwd.treatment().allInstructions()) {
    // if (instr instanceof L3ModificationInstruction &&
    // ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
    // tb.deferred().add(instr);
    // }
    // }
    // }
    } else if (ethType.ethType().toShort() == Ethernet.TYPE_IPV6) {
        if (buildIpv6Selector(filteredSelector, fwd) < 0) {
            return Collections.emptyList();
        }
        // We need to set the proper next table
        IpPrefix ipv6Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV6_DST)).ip();
        if (ipv6Dst.isMulticast()) {
            forTableId = MULTICAST_ROUTING_TABLE;
        } else {
            forTableId = UNICAST_ROUTING_TABLE;
        }
    // TODO decrementing IP ttl is done automatically for routing, this
    // action is ignored or rejected in ofdpa as it is not fully implemented
    // if (fwd.treatment() != null) {
    // for (Instruction instr : fwd.treatment().allInstructions()) {
    // if (instr instanceof L3ModificationInstruction &&
    // ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
    // tb.deferred().add(instr);
    // }
    // }
    // }
    } else {
        filteredSelector.matchEthType(Ethernet.MPLS_UNICAST).matchMplsLabel(((MplsCriterion) selector.getCriterion(Criterion.Type.MPLS_LABEL)).label());
        MplsBosCriterion bos = (MplsBosCriterion) selector.getCriterion(MPLS_BOS);
        if (bos != null && requireMplsBosMatch()) {
            filteredSelector.matchMplsBos(bos.mplsBos());
        }
        forTableId = MPLS_TABLE_1;
        log.debug("processing MPLS specific forwarding objective {} -> next:{}" + " in dev {}", fwd.id(), fwd.nextId(), deviceId);
        if (fwd.treatment() != null) {
            for (Instruction instr : fwd.treatment().allInstructions()) {
                if (instr instanceof L2ModificationInstruction && ((L2ModificationInstruction) instr).subtype() == L2SubType.MPLS_POP) {
                    // setting the MPLS_TYPE so pop can happen down the pipeline
                    if (requireMplsPop()) {
                        if (mplsNextTable == MPLS_TYPE_TABLE && isNotMplsBos(selector)) {
                            tb.immediate().popMpls();
                        }
                    } else {
                        // Skip mpls pop action for mpls_unicast label
                        if (instr instanceof ModMplsHeaderInstruction && !((ModMplsHeaderInstruction) instr).ethernetType().equals(EtherType.MPLS_UNICAST.ethType())) {
                            tb.immediate().add(instr);
                        }
                    }
                }
                if (requireMplsTtlModification()) {
                    if (instr instanceof L3ModificationInstruction && ((L3ModificationInstruction) instr).subtype() == L3SubType.DEC_TTL) {
                        // FIXME Should modify the app to send the correct DEC_MPLS_TTL instruction
                        tb.immediate().decMplsTtl();
                    }
                    if (instr instanceof L3ModificationInstruction && ((L3ModificationInstruction) instr).subtype() == L3SubType.TTL_IN) {
                        tb.immediate().add(instr);
                    }
                }
            }
        }
    }
    if (fwd.nextId() != null) {
        NextGroup next = getGroupForNextObjective(fwd.nextId());
        if (next != null) {
            List<Deque<GroupKey>> gkeys = appKryo.deserialize(next.data());
            // we only need the top level group's key to point the flow to it
            Group group = groupService.getGroup(deviceId, gkeys.get(0).peekFirst());
            if (group == null) {
                log.warn("Group with key:{} for next-id:{} not found in dev:{}", gkeys.get(0).peekFirst(), fwd.nextId(), deviceId);
                fail(fwd, ObjectiveError.GROUPMISSING);
                return Collections.emptySet();
            }
            if (isNotMplsBos(selector) && group.type().equals(SELECT)) {
                log.warn("SR CONTINUE case cannot be handled as MPLS ECMP " + "is not implemented in OF-DPA yet. Aborting flow {} -> next:{} " + "in this device {}", fwd.id(), fwd.nextId(), deviceId);
                fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
                return Collections.emptySet();
            }
            tb.deferred().group(group.id());
            // retrying flows may be necessary due to bug CORD-554
            if (gkeys.size() == 1 && gkeys.get(0).size() == 1) {
                if (shouldRetry()) {
                    log.warn("Found empty group 0x{} in dev:{} .. will retry fwd:{}", Integer.toHexString(group.id().id()), deviceId, fwd.id());
                    emptyGroup = true;
                }
            }
        } else {
            log.warn("Cannot find group for nextId:{} in dev:{}. Aborting fwd:{}", fwd.nextId(), deviceId, fwd.id());
            fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
            return Collections.emptySet();
        }
    }
    if (forTableId == MPLS_TABLE_1) {
        if (mplsNextTable == MPLS_L3_TYPE_TABLE) {
            Ofdpa3SetMplsType setMplsType = new Ofdpa3SetMplsType(Ofdpa3MplsType.L3_PHP);
            // set mpls type as apply_action
            tb.immediate().extension(setMplsType, deviceId);
        }
        tb.transition(mplsNextTable);
    } else {
        tb.transition(ACL_TABLE);
    }
    if (fwd.treatment() != null && fwd.treatment().clearedDeferred()) {
        if (supportsUnicastBlackHole()) {
            tb.wipeDeferred();
        } else {
            log.warn("Clear Deferred is not supported Unicast Routing Table on device {}", deviceId);
            return Collections.emptySet();
        }
    }
    FlowRule.Builder ruleBuilder = DefaultFlowRule.builder().fromApp(fwd.appId()).withPriority(fwd.priority()).forDevice(deviceId).withSelector(filteredSelector.build()).withTreatment(tb.build()).forTable(forTableId);
    if (fwd.permanent()) {
        ruleBuilder.makePermanent();
    } else {
        ruleBuilder.makeTemporary(fwd.timeout());
    }
    Collection<FlowRule> flowRuleCollection = new ArrayList<>();
    flowRuleCollection.add(ruleBuilder.build());
    if (!allowDefaultRoute) {
        flowRuleCollection.add(defaultRoute(fwd, complementarySelector, forTableId, tb));
        log.debug("Default rule 0.0.0.0/0 is being installed two rules");
    }
    if (emptyGroup) {
        retryExecutorService.schedule(new RetryFlows(fwd, flowRuleCollection), RETRY_MS, TimeUnit.MILLISECONDS);
    }
    return flowRuleCollection;
}

Example 8 with NextGroup

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

the class Ofdpa3Pipeline method processInitPwVersatile.

/**
 * Helper method to process the pw forwarding objectives.
 *
 * @param forwardingObjective the fw objective to process
 * @return a singleton list of flow rule
 */
private Collection<FlowRule> processInitPwVersatile(ForwardingObjective forwardingObjective) {
    // We retrieve the matching criteria for mpls l2 port.
    TunnelIdCriterion tunnelIdCriterion = (TunnelIdCriterion) forwardingObjective.selector().getCriterion(TUNNEL_ID);
    PortCriterion portCriterion = (PortCriterion) forwardingObjective.selector().getCriterion(IN_PORT);
    TrafficSelector.Builder selector = DefaultTrafficSelector.builder();
    TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder();
    int mplsLogicalPort;
    long tunnelId;
    // Mpls tunnel ids according to the OFDPA manual have to be
    // in the range [2^17-1, 2^16].
    tunnelId = MPLS_TUNNEL_ID_BASE | tunnelIdCriterion.tunnelId();
    if (tunnelId > MPLS_TUNNEL_ID_MAX) {
        log.error("Pw Versatile Forwarding Objective must include tunnel id < {}", MPLS_TUNNEL_ID_MAX);
        fail(forwardingObjective, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }
    // Port has not been null.
    if (portCriterion == null) {
        log.error("Pw Versatile Forwarding Objective must include port");
        fail(forwardingObjective, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }
    // 0x0000XXXX is UNI interface.
    if (portCriterion.port().toLong() > MPLS_UNI_PORT_MAX) {
        log.error("Pw Versatile Forwarding Objective invalid logical port {}", portCriterion.port().toLong());
        fail(forwardingObjective, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }
    mplsLogicalPort = ((int) portCriterion.port().toLong());
    if (forwardingObjective.nextId() == null) {
        log.error("Pw Versatile Forwarding Objective must contain nextId ", forwardingObjective.nextId());
        fail(forwardingObjective, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }
    // We don't expect a treatment.
    if (forwardingObjective.treatment() != null && !forwardingObjective.treatment().equals(DefaultTrafficTreatment.emptyTreatment())) {
        log.error("Pw Versatile Forwarding Objective cannot contain a treatment ", forwardingObjective.nextId());
        fail(forwardingObjective, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }
    // We retrieve the l2 vpn group and point the mpls
    // l2 port to this.
    NextGroup next = getGroupForNextObjective(forwardingObjective.nextId());
    if (next == null) {
        log.warn("next-id:{} not found in dev:{}", forwardingObjective.nextId(), deviceId);
        fail(forwardingObjective, ObjectiveError.GROUPMISSING);
        return Collections.emptySet();
    }
    List<Deque<GroupKey>> gkeys = appKryo.deserialize(next.data());
    Group group = groupService.getGroup(deviceId, gkeys.get(0).peekFirst());
    if (group == null) {
        log.warn("Group with key:{} for next-id:{} not found in dev:{}", gkeys.get(0).peekFirst(), forwardingObjective.nextId(), deviceId);
        fail(forwardingObjective, ObjectiveError.GROUPMISSING);
        return Collections.emptySet();
    }
    // We prepare the flow rule for the mpls l2 port table.
    selector.matchTunnelId(tunnelId);
    selector.extension(new Ofdpa3MatchMplsL2Port(mplsLogicalPort), deviceId);
    // This should not be necessary but without we receive an error
    treatment.extension(new Ofdpa3SetQosIndex(0), deviceId);
    treatment.transition(MPLS_L2_PORT_PCP_TRUST_FLOW_TABLE);
    treatment.deferred().group(group.id());
    FlowRule.Builder ruleBuilder = DefaultFlowRule.builder().fromApp(forwardingObjective.appId()).withPriority(MPLS_L2_PORT_PRIORITY).forDevice(deviceId).withSelector(selector.build()).withTreatment(treatment.build()).makePermanent().forTable(MPLS_L2_PORT_FLOW_TABLE);
    return Collections.singletonList(ruleBuilder.build());
}

Example 9 with NextGroup

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

the class OvsOfdpaPipeline method processEthTypeSpecific.

/*
     * Open vSwitch emulation allows MPLS ECMP.
     *
     * (non-Javadoc)
     * @see org.onosproject.driver.pipeline.OFDPA2Pipeline#processEthTypeSpecific
     */
@Override
protected Collection<FlowRule> processEthTypeSpecific(ForwardingObjective fwd) {
    if (isDoubleTagged(fwd)) {
        return processDoubleTaggedFwd(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) && (ethType.ethType().toShort() != Ethernet.TYPE_IPV6)) {
        log.warn("processSpecific: Unsupported forwarding objective criteria" + "ethType:{} in dev:{}", ethType, deviceId);
        fail(fwd, ObjectiveError.UNSUPPORTED);
        return Collections.emptySet();
    }
    boolean defaultRule = false;
    int forTableId;
    TrafficSelector.Builder filteredSelector = DefaultTrafficSelector.builder();
    TrafficSelector.Builder complementarySelector = DefaultTrafficSelector.builder();
    if (ethType.ethType().toShort() == Ethernet.TYPE_IPV4) {
        IpPrefix ipv4Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV4_DST)).ip();
        if (ipv4Dst.isMulticast()) {
            if (ipv4Dst.prefixLength() != 32) {
                log.warn("Multicast specific forwarding objective can only be /32");
                fail(fwd, ObjectiveError.BADPARAMS);
                return ImmutableSet.of();
            }
            VlanId assignedVlan = readVlanFromSelector(fwd.meta());
            if (assignedVlan == null) {
                log.warn("VLAN ID required by multicast specific fwd obj is missing. Abort.");
                fail(fwd, ObjectiveError.BADPARAMS);
                return ImmutableSet.of();
            }
            filteredSelector.matchVlanId(assignedVlan);
            filteredSelector.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(ipv4Dst);
            forTableId = MULTICAST_ROUTING_TABLE;
            log.debug("processing IPv4 multicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
        } else {
            if (ipv4Dst.prefixLength() == 0) {
                // The entire IPV4_DST field is wildcarded intentionally
                filteredSelector.matchEthType(Ethernet.TYPE_IPV4);
            } else {
                filteredSelector.matchEthType(Ethernet.TYPE_IPV4).matchIPDst(ipv4Dst);
            }
            forTableId = UNICAST_ROUTING_TABLE;
            log.debug("processing IPv4 unicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
        }
    } else if (ethType.ethType().toShort() == Ethernet.TYPE_IPV6) {
        IpPrefix ipv6Dst = ((IPCriterion) selector.getCriterion(Criterion.Type.IPV6_DST)).ip();
        if (ipv6Dst.isMulticast()) {
            if (ipv6Dst.prefixLength() != IpAddress.INET6_BIT_LENGTH) {
                log.debug("Multicast specific IPv6 forwarding objective can only be /128");
                fail(fwd, ObjectiveError.BADPARAMS);
                return ImmutableSet.of();
            }
            VlanId assignedVlan = readVlanFromSelector(fwd.meta());
            if (assignedVlan == null) {
                log.debug("VLAN ID required by multicast specific fwd obj is missing. Abort.");
                fail(fwd, ObjectiveError.BADPARAMS);
                return ImmutableSet.of();
            }
            filteredSelector.matchVlanId(assignedVlan);
            filteredSelector.matchEthType(Ethernet.TYPE_IPV6).matchIPv6Dst(ipv6Dst);
            forTableId = MULTICAST_ROUTING_TABLE;
            log.debug("processing IPv6 multicast specific forwarding objective {} -> next:{}" + " in dev:{}", fwd.id(), fwd.nextId(), deviceId);
        } else {
            if (buildIpv6Selector(filteredSelector, fwd) < 0) {
                return Collections.emptyList();
            }
            forTableId = UNICAST_ROUTING_TABLE;
        }
    } else {
        filteredSelector.matchEthType(Ethernet.MPLS_UNICAST).matchMplsLabel(((MplsCriterion) selector.getCriterion(Criterion.Type.MPLS_LABEL)).label());
        MplsBosCriterion bos = (MplsBosCriterion) selector.getCriterion(Criterion.Type.MPLS_BOS);
        if (bos != null) {
            filteredSelector.matchMplsBos(bos.mplsBos());
        }
        forTableId = MPLS_TABLE_1;
        log.debug("processing MPLS specific forwarding objective {} -> next:{}" + " in dev {}", fwd.id(), fwd.nextId(), deviceId);
    }
    TrafficTreatment.Builder tb = DefaultTrafficTreatment.builder();
    if (fwd.treatment() != null) {
        for (Instruction i : fwd.treatment().allInstructions()) {
            if (i instanceof L3ModificationInstruction) {
                L3ModificationInstruction l3instr = (L3ModificationInstruction) i;
                if (l3instr.subtype().equals(L3ModificationInstruction.L3SubType.TTL_IN) || l3instr.subtype().equals(L3ModificationInstruction.L3SubType.TTL_OUT)) {
                    continue;
                }
            }
            /*
                 * NOTE: OF-DPA does not support immediate instruction in
                 * L3 unicast and MPLS table.
                 */
            tb.deferred().add(i);
        }
    }
    if (fwd.nextId() != null) {
        NextGroup next = getGroupForNextObjective(fwd.nextId());
        if (next != null) {
            List<Deque<GroupKey>> gkeys = appKryo.deserialize(next.data());
            // we only need the top level group's key to point the flow to it
            Group group = groupService.getGroup(deviceId, gkeys.get(0).peekFirst());
            if (group == null) {
                log.warn("Group with key:{} for next-id:{} not found in dev:{}", gkeys.get(0).peekFirst(), fwd.nextId(), deviceId);
                fail(fwd, ObjectiveError.GROUPMISSING);
                return Collections.emptySet();
            }
            tb.deferred().group(group.id());
        }
    }
    tb.transition(ACL_TABLE);
    FlowRule.Builder ruleBuilder = DefaultFlowRule.builder().fromApp(fwd.appId()).withPriority(fwd.priority()).forDevice(deviceId).withSelector(filteredSelector.build()).withTreatment(tb.build()).forTable(forTableId);
    if (fwd.permanent()) {
        ruleBuilder.makePermanent();
    } else {
        ruleBuilder.makeTemporary(fwd.timeout());
    }
    Collection<FlowRule> flowRuleCollection = new ArrayList<>();
    flowRuleCollection.add(ruleBuilder.build());
    if (defaultRule) {
        flowRuleCollection.add(defaultRoute(fwd, complementarySelector, forTableId, tb));
        log.debug("Default rule 0.0.0.0/0 is being installed two rules");
    }
    return flowRuleCollection;
}

Example 10 with NextGroup

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

the class AbstractHPPipeline method next.

@Override
public void next(NextObjective nextObjective) {
    switch(nextObjective.op()) {
        case ADD:
            log.debug("HP driver: NextObjective ADDED");
            // 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(nextObjective.next().iterator().next()));
            break;
        case REMOVE:
            log.debug("HP driver: NextObjective REMOVED");
            NextGroup next = flowObjectiveStore.removeNextGroup(nextObjective.id());
            if (next == null) {
                nextObjective.context().ifPresent(context -> context.onError(nextObjective, ObjectiveError.GROUPMISSING));
                return;
            }
            break;
        default:
            log.debug("Unsupported operation {}", nextObjective.op());
    }
    nextObjective.context().ifPresent(context -> context.onSuccess(nextObjective));
}