Cem Türker | 3baff67 | 2017-10-12 15:09:01 +0300 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 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.provider.of.flow.impl; |
| 17 | |
| 18 | import com.google.common.collect.Lists; |
| 19 | import com.google.common.collect.Sets; |
| 20 | import org.onosproject.net.PortNumber; |
| 21 | import org.onosproject.net.driver.DriverService; |
| 22 | import org.onosproject.net.flow.FlowRule; |
| 23 | import org.onosproject.net.flow.StatTriggerField; |
| 24 | import org.onosproject.net.flow.StatTriggerFlag; |
| 25 | import org.onosproject.net.flow.instructions.Instruction; |
| 26 | import org.onosproject.net.flow.instructions.Instructions; |
| 27 | import org.projectfloodlight.openflow.protocol.OFFactory; |
| 28 | import org.projectfloodlight.openflow.protocol.OFFlowAdd; |
| 29 | import org.projectfloodlight.openflow.protocol.OFFlowMod; |
| 30 | import org.projectfloodlight.openflow.protocol.OFFlowModFlags; |
| 31 | import org.projectfloodlight.openflow.protocol.OFOxsList; |
| 32 | import org.projectfloodlight.openflow.protocol.OFStatTriggerFlags; |
| 33 | import org.projectfloodlight.openflow.protocol.action.OFAction; |
| 34 | import org.projectfloodlight.openflow.protocol.action.OFActionGroup; |
| 35 | import org.projectfloodlight.openflow.protocol.action.OFActionMeter; |
| 36 | import org.projectfloodlight.openflow.protocol.action.OFActionOutput; |
| 37 | import org.projectfloodlight.openflow.protocol.action.OFActionSetQueue; |
| 38 | import org.projectfloodlight.openflow.protocol.instruction.OFInstruction; |
| 39 | import org.projectfloodlight.openflow.protocol.match.Match; |
| 40 | import org.projectfloodlight.openflow.protocol.oxs.OFOxs; |
| 41 | import org.projectfloodlight.openflow.types.OFBufferId; |
| 42 | import org.projectfloodlight.openflow.types.OFGroup; |
| 43 | import org.projectfloodlight.openflow.types.OFPort; |
| 44 | import org.projectfloodlight.openflow.types.TableId; |
| 45 | import org.projectfloodlight.openflow.types.U32; |
| 46 | import org.projectfloodlight.openflow.types.U64; |
| 47 | |
| 48 | import java.util.Collections; |
| 49 | import java.util.LinkedList; |
| 50 | import java.util.List; |
| 51 | import java.util.Map; |
| 52 | import java.util.Optional; |
| 53 | import java.util.Set; |
| 54 | |
| 55 | import static org.projectfloodlight.openflow.protocol.OFStatTriggerFlags.ONLY_FIRST; |
| 56 | import static org.projectfloodlight.openflow.protocol.OFStatTriggerFlags.PERIODIC; |
| 57 | |
| 58 | /** |
| 59 | * Flow mod builder for OpenFlow 1.5+. |
| 60 | */ |
| 61 | public class FlowModBuilderVer15 extends FlowModBuilderVer13 { |
| 62 | |
| 63 | /** |
| 64 | * Constructor for a flow mod builder for OpenFlow 1.5. |
| 65 | * |
| 66 | * @param flowRule the flow rule to transform into a flow mod |
| 67 | * @param factory the OpenFlow factory to use to build the flow mod |
| 68 | * @param xid the transaction ID |
| 69 | * @param driverService the device driver service |
| 70 | */ |
| 71 | protected FlowModBuilderVer15(FlowRule flowRule, OFFactory factory, |
| 72 | Optional<Long> xid, |
| 73 | Optional<DriverService> driverService) { |
| 74 | super(flowRule, factory, xid, driverService); |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public OFFlowMod buildFlowAdd() { |
| 79 | Match match = buildMatch(); |
| 80 | List<OFAction> deferredActions = buildActions(treatment.deferred(), false); |
| 81 | List<OFAction> immediateActions = buildActions(treatment.immediate(), true); |
| 82 | List<OFInstruction> instructions = Lists.newLinkedList(); |
| 83 | |
| 84 | if (treatment.clearedDeferred()) { |
| 85 | instructions.add(factory().instructions().clearActions()); |
| 86 | } |
| 87 | if (!immediateActions.isEmpty()) { |
| 88 | instructions.add(factory().instructions().applyActions(immediateActions)); |
| 89 | } |
| 90 | if (!deferredActions.isEmpty()) { |
| 91 | instructions.add(factory().instructions().writeActions(deferredActions)); |
| 92 | } |
| 93 | if (treatment.tableTransition() != null) { |
| 94 | instructions.add(buildTableGoto(treatment.tableTransition())); |
| 95 | } |
| 96 | if (treatment.writeMetadata() != null) { |
| 97 | instructions.add(buildMetadata(treatment.writeMetadata())); |
| 98 | } |
| 99 | if (treatment.statTrigger() != null) { |
| 100 | instructions.add(buildStatTrigger(treatment.statTrigger())); |
| 101 | } |
| 102 | |
| 103 | |
| 104 | |
| 105 | long cookie = flowRule().id().value(); |
| 106 | |
| 107 | OFFlowAdd fm = factory().buildFlowAdd() |
| 108 | .setXid(xid) |
| 109 | .setCookie(U64.of(cookie)) |
| 110 | .setBufferId(OFBufferId.NO_BUFFER) |
| 111 | .setInstructions(instructions) |
| 112 | .setMatch(match) |
| 113 | .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| 114 | .setPriority(flowRule().priority()) |
| 115 | .setTableId(TableId.of(flowRule().tableId())) |
| 116 | .setHardTimeout(flowRule().hardTimeout()) |
| 117 | .build(); |
| 118 | |
| 119 | return fm; |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public OFFlowMod buildFlowMod() { |
| 124 | Match match = buildMatch(); |
| 125 | List<OFAction> deferredActions = buildActions(treatment.deferred(), false); |
| 126 | List<OFAction> immediateActions = buildActions(treatment.immediate(), true); |
| 127 | List<OFInstruction> instructions = Lists.newLinkedList(); |
| 128 | |
| 129 | |
| 130 | if (!immediateActions.isEmpty()) { |
| 131 | instructions.add(factory().instructions().applyActions(immediateActions)); |
| 132 | } |
| 133 | if (treatment.clearedDeferred()) { |
| 134 | instructions.add(factory().instructions().clearActions()); |
| 135 | } |
| 136 | if (!deferredActions.isEmpty()) { |
| 137 | instructions.add(factory().instructions().writeActions(deferredActions)); |
| 138 | } |
| 139 | if (treatment.tableTransition() != null) { |
| 140 | instructions.add(buildTableGoto(treatment.tableTransition())); |
| 141 | } |
| 142 | if (treatment.writeMetadata() != null) { |
| 143 | instructions.add(buildMetadata(treatment.writeMetadata())); |
| 144 | } |
| 145 | if (treatment.statTrigger() != null) { |
| 146 | instructions.add(buildStatTrigger(treatment.statTrigger())); |
| 147 | } |
| 148 | |
| 149 | long cookie = flowRule().id().value(); |
| 150 | |
| 151 | OFFlowMod fm = factory().buildFlowModify() |
| 152 | .setXid(xid) |
| 153 | .setCookie(U64.of(cookie)) |
| 154 | .setBufferId(OFBufferId.NO_BUFFER) |
| 155 | .setInstructions(instructions) |
| 156 | .setMatch(match) |
| 157 | .setFlags(Collections.singleton(OFFlowModFlags.SEND_FLOW_REM)) |
| 158 | .setPriority(flowRule().priority()) |
| 159 | .setTableId(TableId.of(flowRule().tableId())) |
| 160 | .setHardTimeout(flowRule().hardTimeout()) |
| 161 | .build(); |
| 162 | |
| 163 | return fm; |
| 164 | } |
| 165 | |
| 166 | private List<OFAction> buildActions(List<Instruction> treatments, Boolean immediateActions) { |
| 167 | if (treatment == null) { |
| 168 | return Collections.emptyList(); |
| 169 | } |
| 170 | |
| 171 | boolean tableFound = false; |
| 172 | List<OFAction> actions = new LinkedList<>(); |
| 173 | |
| 174 | //Meter action handling |
| 175 | if (null != treatment.metered() && immediateActions) { |
| 176 | OFAction meterAction = buildMultipleMeterAction(treatment.metered()); |
| 177 | actions.add(meterAction); |
| 178 | } |
| 179 | |
| 180 | for (Instruction i : treatments) { |
| 181 | switch (i.type()) { |
| 182 | case NOACTION: |
| 183 | return Collections.emptyList(); |
| 184 | case L0MODIFICATION: |
| 185 | actions.add(buildL0Modification(i)); |
| 186 | break; |
| 187 | case L1MODIFICATION: |
| 188 | actions.add(buildL1Modification(i)); |
| 189 | break; |
| 190 | case L2MODIFICATION: |
| 191 | actions.add(buildL2Modification(i)); |
| 192 | break; |
| 193 | case L3MODIFICATION: |
| 194 | actions.add(buildL3Modification(i)); |
| 195 | break; |
| 196 | case L4MODIFICATION: |
| 197 | actions.add(buildL4Modification(i)); |
| 198 | break; |
| 199 | case OUTPUT: |
| 200 | Instructions.OutputInstruction out = (Instructions.OutputInstruction) i; |
| 201 | OFActionOutput.Builder action = factory().actions().buildOutput() |
| 202 | .setPort(OFPort.of((int) out.port().toLong())); |
| 203 | if (out.port().equals(PortNumber.CONTROLLER)) { |
| 204 | action.setMaxLen(OFPCML_NO_BUFFER); |
| 205 | } |
| 206 | actions.add(action.build()); |
| 207 | break; |
| 208 | case GROUP: |
| 209 | Instructions.GroupInstruction group = (Instructions.GroupInstruction) i; |
| 210 | OFActionGroup.Builder groupBuilder = factory().actions().buildGroup() |
| 211 | .setGroup(OFGroup.of(group.groupId().id())); |
| 212 | actions.add(groupBuilder.build()); |
| 213 | break; |
| 214 | case QUEUE: |
| 215 | Instructions.SetQueueInstruction queue = (Instructions.SetQueueInstruction) i; |
| 216 | OFActionSetQueue.Builder queueBuilder = factory().actions().buildSetQueue() |
| 217 | .setQueueId(queue.queueId()); |
| 218 | actions.add(queueBuilder.build()); |
| 219 | break; |
| 220 | case TABLE: |
| 221 | //FIXME: should not occur here. |
| 222 | tableFound = true; |
| 223 | break; |
| 224 | case EXTENSION: |
| 225 | actions.add(buildExtensionAction(((Instructions.ExtensionInstructionWrapper) i) |
| 226 | .extensionInstruction())); |
| 227 | break; |
| 228 | default: |
| 229 | log.warn("Instruction type {} not yet implemented.", i.type()); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | if (tableFound && actions.isEmpty()) { |
| 234 | // handles the case where there are no actions, but there is |
| 235 | // a goto instruction for the next table |
| 236 | return Collections.emptyList(); |
| 237 | } |
| 238 | return actions; |
| 239 | } |
| 240 | |
| 241 | private OFOxsList getOFOxsList(Map<StatTriggerField, Long> statTriggerMap) { |
| 242 | OFFactory factory = factory(); |
| 243 | List<OFOxs<?>> ofOxsList = Lists.newArrayList(); |
| 244 | for (Map.Entry<StatTriggerField, Long> entry : statTriggerMap.entrySet()) { |
| 245 | switch (entry.getKey()) { |
| 246 | case DURATION: |
| 247 | ofOxsList.add(factory.oxss().buildDuration().setValue(U64.of(entry.getValue())).build()); |
| 248 | break; |
| 249 | case IDLE_TIME: |
| 250 | ofOxsList.add(factory.oxss().buildIdleTime().setValue(U64.of(entry.getValue())).build()); |
| 251 | break; |
| 252 | case BYTE_COUNT: |
| 253 | ofOxsList.add(factory.oxss().buildByteCount().setValue(U64.of(entry.getValue())).build()); |
| 254 | break; |
| 255 | case FLOW_COUNT: |
| 256 | ofOxsList.add(factory.oxss().buildFlowCount().setValue(U32.of(entry.getValue())).build()); |
| 257 | break; |
| 258 | case PACKET_COUNT: |
| 259 | ofOxsList.add(factory.oxss().buildPacketCount().setValue(U64.of(entry.getValue())).build()); |
| 260 | break; |
| 261 | default: |
| 262 | log.warn("Unsupported Stat Trigger field"); |
| 263 | break; |
| 264 | } |
| 265 | } |
| 266 | return OFOxsList.ofList(ofOxsList); |
| 267 | } |
| 268 | |
| 269 | private Set<OFStatTriggerFlags> getStatTriggerFlag(StatTriggerFlag flag) { |
| 270 | Set<OFStatTriggerFlags> statTriggerFlagsSet = Sets.newHashSet(); |
| 271 | switch (flag) { |
| 272 | case PERIODIC: |
| 273 | statTriggerFlagsSet.add(PERIODIC); |
| 274 | break; |
| 275 | case ONLY_FIRST: |
| 276 | statTriggerFlagsSet.add(ONLY_FIRST); |
| 277 | break; |
| 278 | default: |
| 279 | break; |
| 280 | } |
| 281 | return statTriggerFlagsSet; |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Meter action builder. |
| 286 | * |
| 287 | * @param meterInstruction meter instruction |
| 288 | * @return meter action |
| 289 | */ |
| 290 | protected OFAction buildMultipleMeterAction(Instructions.MeterInstruction meterInstruction) { |
| 291 | OFActionMeter.Builder meterBuilder = factory().actions().buildMeter() |
| 292 | .setMeterId(meterInstruction.meterId().id()); |
| 293 | return meterBuilder.build(); |
| 294 | } |
| 295 | |
| 296 | protected OFInstruction buildStatTrigger(Instructions.StatTriggerInstruction s) { |
| 297 | OFInstruction instruction = factory().instructions().statTrigger(getStatTriggerFlag(s.getStatTriggerFlag()), |
| 298 | getOFOxsList(s.getStatTriggerFieldMap())); |
| 299 | return instruction; |
| 300 | } |
| 301 | } |