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/*
* Copyright 2015 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 org.onlab.osgi.ServiceDirectory;
import org.onlab.packet.EthType;
import org.onosproject.core.ApplicationId;
import org.onosproject.core.CoreService;
import org.onosproject.net.DefaultAnnotations;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.MastershipRole;
import org.onosproject.net.PortNumber;
import org.onosproject.net.behaviour.Pipeliner;
import org.onosproject.net.behaviour.PipelinerContext;
import org.onosproject.net.device.DefaultDeviceDescription;
import org.onosproject.net.device.DeviceDescription;
import org.onosproject.net.device.DeviceProvider;
import org.onosproject.net.device.DeviceProviderRegistry;
import org.onosproject.net.device.DeviceService;
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.instructions.Instructions;
import org.onosproject.net.flowobjective.FilteringObjective;
import org.onosproject.net.flowobjective.ForwardingObjective;
import org.onosproject.net.flowobjective.NextObjective;
import org.onosproject.net.flowobjective.ObjectiveError;
import org.onosproject.net.packet.PacketPriority;
import org.onosproject.net.provider.AbstractProvider;
import org.onosproject.net.provider.ProviderId;
import org.slf4j.Logger;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Pipeliner for OLT device.
*/
public class OltPipeline extends AbstractHandlerBehaviour implements Pipeliner {
private final Logger log = getLogger(getClass());
static final ProviderId PID = new ProviderId("olt", "org.onosproject.olt", true);
static final String DEVICE = "isAccess";
static final String OLT = "true";
private ServiceDirectory serviceDirectory;
private FlowRuleService flowRuleService;
private DeviceId deviceId;
private CoreService coreService;
private ApplicationId appId;
private DeviceProvider provider = new AnnotationProvider();
@Override
public void init(DeviceId deviceId, PipelinerContext context) {
this.serviceDirectory = context.directory();
this.deviceId = deviceId;
DeviceProviderRegistry registry =
serviceDirectory.get(DeviceProviderRegistry.class);
flowRuleService = serviceDirectory.get(FlowRuleService.class);
coreService = serviceDirectory.get(CoreService.class);
/*try {
DeviceProviderService providerService = registry.register(provider);
providerService.deviceConnected(deviceId,
description(deviceId, DEVICE, OLT));
} finally {
registry.unregister(provider);
}*/
appId = coreService.registerApplication(
"org.onosproject.driver.OLTPipeline");
TrafficSelector selector = DefaultTrafficSelector.builder()
.matchEthType(EthType.EtherType.EAPOL.ethType().toShort())
.build();
TrafficTreatment treatment = DefaultTrafficTreatment.builder()
.punt()
.build();
FlowRule flowRule = new DefaultFlowRule(deviceId, selector, treatment,
PacketPriority.CONTROL.priorityValue(),
appId, 0, true, null);
//flowRuleService.applyFlowRules(flowRule);
}
@Override
public void filter(FilteringObjective filter) {
throw new UnsupportedOperationException("OLT does not filter.");
}
@Override
public void forward(ForwardingObjective fwd) {
FlowRuleOperations.Builder flowBuilder = FlowRuleOperations.builder();
if (fwd.flag() != ForwardingObjective.Flag.VERSATILE) {
throw new UnsupportedOperationException(
"Only VERSATILE is supported.");
}
boolean isPunt = fwd.treatment().immediate().stream().anyMatch(i -> {
if (i instanceof Instructions.OutputInstruction) {
Instructions.OutputInstruction out = (Instructions.OutputInstruction) i;
return out.port().equals(PortNumber.CONTROLLER);
}
return false;
});
if (isPunt) {
return;
}
TrafficSelector selector = fwd.selector();
TrafficTreatment treatment = fwd.treatment();
FlowRule.Builder ruleBuilder = DefaultFlowRule.builder()
.forDevice(deviceId)
.withSelector(selector)
.withTreatment(treatment)
.fromApp(fwd.appId())
.withPriority(fwd.priority());
if (fwd.permanent()) {
ruleBuilder.makePermanent();
} else {
ruleBuilder.makeTemporary(fwd.timeout());
}
switch (fwd.op()) {
case ADD:
flowBuilder.add(ruleBuilder.build());
break;
case REMOVE:
flowBuilder.remove(ruleBuilder.build());
break;
default:
log.warn("Unknown operation {}", fwd.op());
}
flowRuleService.apply(flowBuilder.build(new FlowRuleOperationsContext() {
@Override
public void onSuccess(FlowRuleOperations ops) {
if (fwd.context().isPresent()) {
fwd.context().get().onSuccess(fwd);
}
}
@Override
public void onError(FlowRuleOperations ops) {
if (fwd.context().isPresent()) {
fwd.context().get().onError(fwd, ObjectiveError.FLOWINSTALLATIONFAILED);
}
}
}));
}
@Override
public void next(NextObjective nextObjective) {
throw new UnsupportedOperationException("OLT does not next hop.");
}
/**
* Build a device description.
*
* @param deviceId a deviceId
* @param key the key of the annotation
* @param value the value for the annotation
* @return a device description
*/
private DeviceDescription description(DeviceId deviceId, String key, String value) {
DeviceService deviceService = serviceDirectory.get(DeviceService.class);
Device device = deviceService.getDevice(deviceId);
checkNotNull(device, "Device not found in device service.");
DefaultAnnotations.Builder builder = DefaultAnnotations.builder();
if (value != null) {
builder.set(key, value);
} else {
builder.remove(key);
}
return new DefaultDeviceDescription(device.id().uri(), device.type(),
device.manufacturer(), device.hwVersion(),
device.swVersion(), device.serialNumber(),
device.chassisId(), builder.build());
}
/**
* Simple ancillary provider used to annotate device.
*/
private static final class AnnotationProvider
extends AbstractProvider implements DeviceProvider {
private AnnotationProvider() {
super(PID);
}
@Override
public void triggerProbe(DeviceId deviceId) {
}
@Override
public void roleChanged(DeviceId deviceId, MastershipRole newRole) {
}
@Override
public boolean isReachable(DeviceId deviceId) {
return false;
}
}
}
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