Java Code Examples for org.onosproject.net.flow.DefaultFlowRule#builder()

private void addMoreFlows(int flowsPerDevice, Device device, DeviceId id,
                          int currentFlowCount) {
    int c = flowsPerDevice - currentFlowCount;
    log.info("Adding {} flows for device {}", c, id);
    List<PortNumber> ports = devicePorts(device);
    FlowRuleOperations.Builder ops = FlowRuleOperations.builder();
    for (int i = 0; i < c; i++) {
        FlowRule.Builder frb = DefaultFlowRule.builder();
        frb.fromApp(appId).makePermanent().withPriority((currentFlowCount + i) % FlowRule.MAX_PRIORITY);
        TrafficSelector.Builder tsb = DefaultTrafficSelector.builder();
        TrafficTreatment.Builder ttb = DefaultTrafficTreatment.builder();

        tsb.matchEthType(Ethernet.TYPE_IPV4);
        tsb.matchEthDst(randomMac());
        ttb.setEthDst(randomMac()).setEthSrc(randomMac());
        ttb.setOutput(randomPort(ports));
        frb.withSelector(tsb.build()).withTreatment(ttb.build());
        ops.add(frb.forDevice(id).build());
    }
    flowRuleService.apply(ops.build());
}
 

/**
 * Manufactures flow rule with treatment that is defined by failover
 * group and traffic selector determined by ingress port of the intent.
 *
 * @param intent intent which is being compiled (for appId)
 * @return       a list of a singular flow rule with fast failover
 *               outport traffic treatment
 */
private List<FlowRule> createFailoverFlowRules(PointToPointIntent intent) {
    List<FlowRule> flowRules = new ArrayList<>();

    ConnectPoint ingress = intent.filteredIngressPoint().connectPoint();
    DeviceId deviceId = ingress.deviceId();

    // flow rule with failover traffic treatment
    TrafficSelector trafficSelector = DefaultTrafficSelector.builder(intent.selector())
                                                  .matchInPort(ingress.port()).build();

    FlowRule.Builder flowRuleBuilder = DefaultFlowRule.builder();
    flowRules.add(flowRuleBuilder.withSelector(trafficSelector)
                          .withTreatment(buildFailoverTreatment(deviceId, makeGroupKey(intent.id())))
                          .fromApp(intent.appId())
                          .makePermanent()
                          .forDevice(deviceId)
                          .withPriority(PRIORITY)
                          .build());

    return flowRules;
}
 

@Override
protected Collection<FlowRule> processEthDstSpecific(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(VLAN_VID);

    if (vlanIdCriterion == null) {
        log.warn("Forwarding objective for bridging requires vlan. Not "
                + "installing fwd:{} in dev:{}", fwd.id(), deviceId);
        fail(fwd, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }

    TrafficSelector.Builder filteredSelectorBuilder =
            DefaultTrafficSelector.builder();
    // Do not match MacAddress for subnet broadcast entry
    if (!ethCriterion.mac().equals(NONE) && !ethCriterion.mac().equals(BROADCAST)) {
        filteredSelectorBuilder.matchEthDst(ethCriterion.mac());
        log.debug("processing L2 forwarding objective:{} -> next:{} in dev:{}",
                fwd.id(), fwd.nextId(), deviceId);
    } else {
        log.debug("processing L2 Broadcast forwarding objective:{} -> next:{} "
                        + "in dev:{} for vlan:{}",
                fwd.id(), fwd.nextId(), deviceId, vlanIdCriterion.vlanId());
    }
    filteredSelectorBuilder.matchVlanId(vlanIdCriterion.vlanId());
    TrafficSelector filteredSelector = filteredSelectorBuilder.build();

    if (fwd.treatment() != null) {
        log.warn("Ignoring traffic treatment in fwd rule {} meant for L2 table"
                + "for dev:{}. Expecting only nextId", fwd.id(), deviceId);
    }

    TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder();
    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) {
                treatmentBuilder.deferred().group(group.id());
            } else {
                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();
            }
        }
    }
    treatmentBuilder.immediate().transition(ACL_TABLE);
    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(BRIDGING_TABLE);
    if (fwd.permanent()) {
        flowRuleBuilder.makePermanent();
    } else {
        flowRuleBuilder.makeTemporary(fwd.timeout());
    }
    rules.add(flowRuleBuilder.build());
    return rules;
}
 

/**
 * Handles forwarding rules to the L2 bridging table. Flow actions are not
 * allowed in the bridging table - instead we use L2 Interface group or
 * L2 flood group
 *
 * @param fwd the forwarding objective
 * @return A collection of flow rules, or an empty set
 */
protected Collection<FlowRule> processEthDstSpecific(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);

    if (vlanIdCriterion == null) {
        log.warn("Forwarding objective for bridging requires vlan. Not "
                + "installing fwd:{} in dev:{}", fwd.id(), deviceId);
        fail(fwd, ObjectiveError.BADPARAMS);
        return Collections.emptySet();
    }

    TrafficSelector.Builder filteredSelectorBuilder =
            DefaultTrafficSelector.builder();

    if (!ethCriterion.mac().equals(NONE) &&
            !ethCriterion.mac().equals(BROADCAST)) {
        filteredSelectorBuilder.matchEthDst(ethCriterion.mac());
        log.debug("processing L2 forwarding objective:{} -> next:{} in dev:{}",
                  fwd.id(), fwd.nextId(), deviceId);
    } else {
        // Use wildcard DST_MAC if the MacAddress is None or Broadcast
        log.debug("processing L2 Broadcast forwarding objective:{} -> next:{} "
                + "in dev:{} for vlan:{}",
                  fwd.id(), fwd.nextId(), deviceId, vlanIdCriterion.vlanId());
    }
    if (requireVlanExtensions()) {
        OfdpaMatchVlanVid ofdpaMatchVlanVid = new OfdpaMatchVlanVid(vlanIdCriterion.vlanId());
        filteredSelectorBuilder.extension(ofdpaMatchVlanVid, deviceId);
    } else {
        filteredSelectorBuilder.matchVlanId(vlanIdCriterion.vlanId());
    }
    TrafficSelector filteredSelector = filteredSelectorBuilder.build();

    if (fwd.treatment() != null) {
        log.warn("Ignoring traffic treatment in fwd rule {} meant for L2 table"
                + "for dev:{}. Expecting only nextId", fwd.id(), deviceId);
    }

    TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder();
    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) {
                treatmentBuilder.deferred().group(group.id());
            } else {
                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();
            }
        }
    }
    treatmentBuilder.immediate().transition(ACL_TABLE);
    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(BRIDGING_TABLE);
    if (fwd.permanent()) {
        flowRuleBuilder.makePermanent();
    } else {
        flowRuleBuilder.makeTemporary(fwd.timeout());
    }
    rules.add(flowRuleBuilder.build());
    return rules;
}
 

@Override
protected void doExecute() throws Exception {
    if (operation.equals("edit-config")) {
        FlowRuleService flowService = get(FlowRuleService.class);
        DeviceService deviceService = get(DeviceService.class);
        CoreService coreService = get(CoreService.class);
        ConnectPoint cp = ConnectPoint.deviceConnectPoint(connectPointString);

        TrafficSelector.Builder trafficSelectorBuilder = DefaultTrafficSelector.builder();
        TrafficTreatment.Builder trafficTreatmentBuilder = DefaultTrafficTreatment.builder();
        FlowRule.Builder flowRuleBuilder = DefaultFlowRule.builder();


        // an empty traffic selector
        TrafficSelector trafficSelector = trafficSelectorBuilder.matchInPort(cp.port()).build();
        OchSignal ochSignal;
        if (parameter.contains("/")) {
            ochSignal = createOchSignal();
        } else if (parameter.matches("-?\\d+(\\.\\d+)?")) {
            ochSignal = createOchSignalFromWavelength(deviceService, cp);
        } else {
            print("Signal or wavelength %s are in uncorrect format");
            return;
        }
        if (ochSignal == null) {
            print("Error in creating OchSignal");
            return;
        }
        TrafficTreatment trafficTreatment = trafficTreatmentBuilder
                .add(Instructions.modL0Lambda(ochSignal))
                .add(Instructions.createOutput(deviceService.getPort(cp).number()))
                .build();

        Device device = deviceService.getDevice(cp.deviceId());
        int priority = 100;
        ApplicationId appId = coreService.registerApplication("org.onosproject.optical-model");
        log.info(appId.name());
        FlowRule addFlow = flowRuleBuilder
                .withPriority(priority)
                .fromApp(appId)
                .withTreatment(trafficTreatment)
                .withSelector(trafficSelector)
                .forDevice(device.id())
                .makePermanent()
                .build();
        flowService.applyFlowRules(addFlow);
        String msg = String.format("Setting wavelength %s", ochSignal.centralFrequency().asGHz());
        print(msg);
    } else {
        print("Operation %s are not supported now.", operation);
    }

}