| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.pipelines.basic; |
| |
| import org.onosproject.net.DeviceId; |
| 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.FlowRule; |
| import org.onosproject.net.flow.FlowRuleService; |
| 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.slf4j.Logger; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static org.onosproject.pipelines.basic.BasicConstants.INGRESS_TABLE0_CONTROL_TABLE0; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Pipeliner implementation for basic.p4 that maps all forwarding objectives to |
| * table0. All other types of objectives are not supported. |
| */ |
| public class BasicPipelinerImpl extends AbstractHandlerBehaviour implements Pipeliner { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private FlowRuleService flowRuleService; |
| private DeviceId deviceId; |
| |
| |
| @Override |
| public void init(DeviceId deviceId, PipelinerContext context) { |
| this.deviceId = deviceId; |
| this.flowRuleService = context.directory().get(FlowRuleService.class); |
| |
| } |
| |
| @Override |
| public void filter(FilteringObjective obj) { |
| obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED)); |
| } |
| |
| @Override |
| public void forward(ForwardingObjective obj) { |
| if (obj.treatment() == null) { |
| obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED)); |
| } |
| |
| // Simply create an equivalent FlowRule for table 0. |
| final FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| .forTable(INGRESS_TABLE0_CONTROL_TABLE0) |
| .forDevice(deviceId) |
| .withSelector(obj.selector()) |
| .fromApp(obj.appId()) |
| .withPriority(obj.priority()) |
| .withTreatment(obj.treatment()); |
| |
| if (obj.permanent()) { |
| ruleBuilder.makePermanent(); |
| } else { |
| ruleBuilder.makeTemporary(obj.timeout()); |
| } |
| |
| switch (obj.op()) { |
| case ADD: |
| flowRuleService.applyFlowRules(ruleBuilder.build()); |
| break; |
| case REMOVE: |
| flowRuleService.removeFlowRules(ruleBuilder.build()); |
| break; |
| default: |
| log.warn("Unknown operation {}", obj.op()); |
| } |
| |
| obj.context().ifPresent(c -> c.onSuccess(obj)); |
| } |
| |
| @Override |
| public void next(NextObjective obj) { |
| obj.context().ifPresent(c -> c.onError(obj, ObjectiveError.UNSUPPORTED)); |
| } |
| |
| @Override |
| public List<String> getNextMappings(NextGroup nextGroup) { |
| // We do not use nextObjectives or groups. |
| return Collections.emptyList(); |
| } |
| } |