samuel | 3b2743d | 2015-07-29 10:44:30 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.onosproject.driver.pipeline; |
| 17 | |
| 18 | import static org.slf4j.LoggerFactory.getLogger; |
| 19 | |
| 20 | import java.util.Collection; |
| 21 | import java.util.Collections; |
| 22 | |
| 23 | import org.onlab.osgi.ServiceDirectory; |
| 24 | import org.onosproject.core.CoreService; |
| 25 | import org.onosproject.net.DeviceId; |
| 26 | import org.onosproject.net.behaviour.Pipeliner; |
| 27 | import org.onosproject.net.behaviour.PipelinerContext; |
| 28 | import org.onosproject.net.device.DeviceService; |
| 29 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 30 | import org.onosproject.net.flow.DefaultFlowRule; |
| 31 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 32 | import org.onosproject.net.flow.FlowRule; |
| 33 | import org.onosproject.net.flow.FlowRuleOperations; |
| 34 | import org.onosproject.net.flow.FlowRuleOperationsContext; |
| 35 | import org.onosproject.net.flow.FlowRuleService; |
| 36 | import org.onosproject.net.flow.TrafficSelector; |
| 37 | import org.onosproject.net.flow.TrafficTreatment; |
| 38 | import org.onosproject.net.flow.criteria.Criterion.Type; |
| 39 | import org.onosproject.net.flow.instructions.Instructions; |
| 40 | import org.onosproject.net.flowobjective.FilteringObjective; |
| 41 | import org.onosproject.net.flowobjective.FlowObjectiveStore; |
| 42 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 43 | import org.onosproject.net.flowobjective.NextObjective; |
| 44 | import org.onosproject.net.flowobjective.Objective; |
| 45 | import org.onosproject.net.flowobjective.ObjectiveError; |
| 46 | import org.slf4j.Logger; |
| 47 | |
| 48 | /** |
| 49 | * Driver for standard OpenVSwitch. |
| 50 | */ |
| 51 | public class OpenVSwitchPipeline extends AbstractHandlerBehaviour |
| 52 | implements Pipeliner { |
| 53 | |
| 54 | private final Logger log = getLogger(getClass()); |
| 55 | private CoreService coreService; |
| 56 | private ServiceDirectory serviceDirectory; |
| 57 | protected FlowObjectiveStore flowObjectiveStore; |
| 58 | protected DeviceId deviceId; |
| 59 | protected FlowRuleService flowRuleService; |
| 60 | protected DeviceService deviceService; |
| 61 | private static final int MAC_TABLE_PRIORITY = 0xffff; |
| 62 | private static final int PORT_TABLE_PRIORITY = 0xffff; |
| 63 | private static final int TIME_OUT = 0; |
| 64 | private static final int MAC_TABLE = 40; |
| 65 | private static final int PORT_TABLE = 0; |
| 66 | |
| 67 | @Override |
| 68 | public void init(DeviceId deviceId, PipelinerContext context) { |
| 69 | this.serviceDirectory = context.directory(); |
| 70 | this.deviceId = deviceId; |
| 71 | |
| 72 | coreService = serviceDirectory.get(CoreService.class); |
| 73 | flowRuleService = serviceDirectory.get(FlowRuleService.class); |
| 74 | flowObjectiveStore = context.store(); |
| 75 | coreService |
| 76 | .registerApplication("org.onosproject.driver.OpenVSwitchPipeline"); |
| 77 | |
| 78 | } |
| 79 | |
| 80 | @Override |
| 81 | public void filter(FilteringObjective filteringObjective) { |
| 82 | // TODO Auto-generated method stub |
| 83 | } |
| 84 | |
| 85 | @Override |
| 86 | public void forward(ForwardingObjective fwd) { |
| 87 | Collection<FlowRule> rules; |
| 88 | FlowRuleOperations.Builder flowOpsBuilder = FlowRuleOperations |
| 89 | .builder(); |
| 90 | |
| 91 | rules = processForward(fwd); |
| 92 | switch (fwd.op()) { |
| 93 | case ADD: |
| 94 | rules.stream().filter(rule -> rule != null) |
| 95 | .forEach(flowOpsBuilder::add); |
| 96 | break; |
| 97 | case REMOVE: |
| 98 | rules.stream().filter(rule -> rule != null) |
| 99 | .forEach(flowOpsBuilder::remove); |
| 100 | break; |
| 101 | default: |
| 102 | fail(fwd, ObjectiveError.UNKNOWN); |
| 103 | log.warn("Unknown forwarding type {}", fwd.op()); |
| 104 | } |
| 105 | |
| 106 | flowRuleService.apply(flowOpsBuilder |
| 107 | .build(new FlowRuleOperationsContext() { |
| 108 | @Override |
| 109 | public void onSuccess(FlowRuleOperations ops) { |
| 110 | pass(fwd); |
| 111 | } |
| 112 | |
| 113 | @Override |
| 114 | public void onError(FlowRuleOperations ops) { |
| 115 | fail(fwd, ObjectiveError.FLOWINSTALLATIONFAILED); |
| 116 | } |
| 117 | })); |
| 118 | } |
| 119 | |
| 120 | @Override |
| 121 | public void next(NextObjective nextObjective) { |
| 122 | // TODO Auto-generated method stub |
| 123 | |
| 124 | } |
| 125 | |
| 126 | private Collection<FlowRule> processForward(ForwardingObjective fwd) { |
| 127 | switch (fwd.flag()) { |
| 128 | case SPECIFIC: |
| 129 | return processSpecific(fwd); |
| 130 | case VERSATILE: |
| 131 | return processVersatile(fwd); |
| 132 | default: |
| 133 | fail(fwd, ObjectiveError.UNKNOWN); |
| 134 | log.warn("Unknown forwarding flag {}", fwd.flag()); |
| 135 | } |
| 136 | return Collections.emptySet(); |
| 137 | } |
| 138 | |
| 139 | private Collection<FlowRule> processVersatile(ForwardingObjective fwd) { |
| 140 | log.debug("Processing versatile forwarding objective"); |
| 141 | return Collections.emptyList(); |
| 142 | } |
| 143 | |
| 144 | private Collection<FlowRule> processSpecific(ForwardingObjective fwd) { |
| 145 | log.debug("Processing specific forwarding objective"); |
| 146 | TrafficSelector selector = fwd.selector(); |
| 147 | TrafficTreatment tb = fwd.treatment(); |
| 148 | FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| 149 | .fromApp(fwd.appId()).withPriority(fwd.priority()) |
| 150 | .forDevice(deviceId).withSelector(selector) |
| 151 | .makeTemporary(TIME_OUT); |
| 152 | |
| 153 | if (fwd.permanent()) { |
| 154 | ruleBuilder.makePermanent(); |
| 155 | } |
| 156 | if (selector.getCriterion(Type.ETH_DST) != null |
| 157 | || tb.allInstructions().contains(Instructions.createDrop())) { |
| 158 | ruleBuilder.withPriority(MAC_TABLE_PRIORITY); |
| 159 | ruleBuilder.withTreatment(tb); |
| 160 | ruleBuilder.forTable(MAC_TABLE); |
| 161 | } else { |
| 162 | ruleBuilder.withPriority(PORT_TABLE_PRIORITY); |
| 163 | TrafficTreatment.Builder newTraffic = DefaultTrafficTreatment.builder(); |
| 164 | tb.allInstructions().forEach(t -> newTraffic.add(t)); |
| 165 | newTraffic.transition(MAC_TABLE); |
| 166 | ruleBuilder.withTreatment(newTraffic.build()); |
| 167 | ruleBuilder.forTable(PORT_TABLE); |
| 168 | } |
| 169 | return Collections.singletonList(ruleBuilder.build()); |
| 170 | } |
| 171 | |
| 172 | private void fail(Objective obj, ObjectiveError error) { |
| 173 | if (obj.context().isPresent()) { |
| 174 | obj.context().get().onError(obj, error); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | private void pass(Objective obj) { |
| 179 | if (obj.context().isPresent()) { |
| 180 | obj.context().get().onSuccess(obj); |
| 181 | } |
| 182 | } |
| 183 | } |