Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [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 | |
Carmelo Cascone | 36d5e7a | 2019-09-25 01:02:53 -0700 | [diff] [blame^] | 17 | package org.onosproject.pipelines.fabric.impl.behaviour.pipeliner; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 18 | |
Carmelo Cascone | 36d5e7a | 2019-09-25 01:02:53 -0700 | [diff] [blame^] | 19 | import com.google.common.collect.ImmutableList; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 20 | import com.google.common.collect.ImmutableMap; |
| 21 | import com.google.common.collect.ImmutableSet; |
| 22 | import com.google.common.collect.Lists; |
| 23 | import com.google.common.collect.Sets; |
| 24 | import org.onlab.packet.IpPrefix; |
| 25 | import org.onlab.packet.MacAddress; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 26 | import org.onosproject.core.ApplicationId; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 27 | import org.onosproject.net.DeviceId; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 28 | import org.onosproject.net.PortNumber; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 29 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 30 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 31 | import org.onosproject.net.flow.FlowRule; |
| 32 | import org.onosproject.net.flow.TrafficSelector; |
| 33 | import org.onosproject.net.flow.TrafficTreatment; |
| 34 | import org.onosproject.net.flow.criteria.Criterion; |
| 35 | import org.onosproject.net.flow.criteria.EthCriterion; |
| 36 | import org.onosproject.net.flow.criteria.IPCriterion; |
| 37 | import org.onosproject.net.flow.criteria.MplsCriterion; |
| 38 | import org.onosproject.net.flow.criteria.VlanIdCriterion; |
| 39 | import org.onosproject.net.flowobjective.ForwardingObjective; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 40 | import org.onosproject.net.flowobjective.Objective; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 41 | import org.onosproject.net.flowobjective.ObjectiveError; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 42 | import org.onosproject.net.group.DefaultGroupDescription; |
Carmelo Cascone | 36d5e7a | 2019-09-25 01:02:53 -0700 | [diff] [blame^] | 43 | import org.onosproject.net.group.DefaultGroupKey; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 44 | import org.onosproject.net.group.GroupBucket; |
| 45 | import org.onosproject.net.group.GroupBuckets; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 46 | import org.onosproject.net.group.GroupDescription; |
| 47 | import org.onosproject.net.group.GroupKey; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 48 | import org.onosproject.net.pi.model.PiActionId; |
| 49 | import org.onosproject.net.pi.model.PiTableId; |
| 50 | import org.onosproject.net.pi.runtime.PiAction; |
| 51 | import org.onosproject.net.pi.runtime.PiActionParam; |
Carmelo Cascone | 36d5e7a | 2019-09-25 01:02:53 -0700 | [diff] [blame^] | 52 | import org.onosproject.pipelines.fabric.impl.behaviour.FabricCapabilities; |
| 53 | import org.onosproject.pipelines.fabric.impl.behaviour.FabricConstants; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 54 | |
| 55 | import java.util.List; |
| 56 | import java.util.Map; |
| 57 | import java.util.Set; |
| 58 | import java.util.stream.Collectors; |
| 59 | |
| 60 | import static java.lang.String.format; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 61 | import static org.onosproject.net.group.DefaultGroupBucket.createCloneGroupBucket; |
Carmelo Cascone | 36d5e7a | 2019-09-25 01:02:53 -0700 | [diff] [blame^] | 62 | import static org.onosproject.pipelines.fabric.impl.behaviour.FabricUtils.criterionNotNull; |
| 63 | import static org.onosproject.pipelines.fabric.impl.behaviour.FabricUtils.outputPort; |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 64 | |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 65 | |
| 66 | /** |
| 67 | * ObjectiveTranslator implementation ForwardingObjective. |
| 68 | */ |
| 69 | class ForwardingObjectiveTranslator |
| 70 | extends AbstractObjectiveTranslator<ForwardingObjective> { |
| 71 | |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 72 | //FIXME: Max number supported by PI |
| 73 | static final int CLONE_TO_CPU_ID = 511; |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 74 | private static final List<String> DEFAULT_ROUTE_PREFIXES = Lists.newArrayList( |
| 75 | "0.0.0.0/1", "128.0.0.0/1"); |
| 76 | |
| 77 | private static final Set<Criterion.Type> ACL_CRITERIA = ImmutableSet.of( |
| 78 | Criterion.Type.IN_PORT, |
| 79 | Criterion.Type.IN_PHY_PORT, |
| 80 | Criterion.Type.ETH_DST, |
| 81 | Criterion.Type.ETH_DST_MASKED, |
| 82 | Criterion.Type.ETH_SRC, |
| 83 | Criterion.Type.ETH_SRC_MASKED, |
| 84 | Criterion.Type.ETH_TYPE, |
| 85 | Criterion.Type.VLAN_VID, |
| 86 | Criterion.Type.IP_PROTO, |
| 87 | Criterion.Type.IPV4_SRC, |
| 88 | Criterion.Type.IPV4_DST, |
| 89 | Criterion.Type.TCP_SRC, |
| 90 | Criterion.Type.TCP_SRC_MASKED, |
| 91 | Criterion.Type.TCP_DST, |
| 92 | Criterion.Type.TCP_DST_MASKED, |
| 93 | Criterion.Type.UDP_SRC, |
| 94 | Criterion.Type.UDP_SRC_MASKED, |
| 95 | Criterion.Type.UDP_DST, |
| 96 | Criterion.Type.UDP_DST_MASKED, |
| 97 | Criterion.Type.ICMPV4_TYPE, |
| 98 | Criterion.Type.ICMPV4_CODE, |
| 99 | Criterion.Type.PROTOCOL_INDEPENDENT); |
| 100 | |
| 101 | private static final Map<PiTableId, PiActionId> NEXT_ID_ACTIONS = ImmutableMap.<PiTableId, PiActionId>builder() |
| 102 | .put(FabricConstants.FABRIC_INGRESS_FORWARDING_BRIDGING, |
| 103 | FabricConstants.FABRIC_INGRESS_FORWARDING_SET_NEXT_ID_BRIDGING) |
| 104 | .put(FabricConstants.FABRIC_INGRESS_FORWARDING_ROUTING_V4, |
| 105 | FabricConstants.FABRIC_INGRESS_FORWARDING_SET_NEXT_ID_ROUTING_V4) |
| 106 | .put(FabricConstants.FABRIC_INGRESS_FORWARDING_ROUTING_V6, |
| 107 | FabricConstants.FABRIC_INGRESS_FORWARDING_SET_NEXT_ID_ROUTING_V6) |
| 108 | .put(FabricConstants.FABRIC_INGRESS_FORWARDING_MPLS, |
| 109 | FabricConstants.FABRIC_INGRESS_FORWARDING_POP_MPLS_AND_NEXT) |
| 110 | .build(); |
| 111 | |
| 112 | ForwardingObjectiveTranslator(DeviceId deviceId, FabricCapabilities capabilities) { |
| 113 | super(deviceId, capabilities); |
| 114 | } |
| 115 | |
| 116 | @Override |
| 117 | public ObjectiveTranslation doTranslate(ForwardingObjective obj) |
| 118 | throws FabricPipelinerException { |
| 119 | final ObjectiveTranslation.Builder resultBuilder = |
| 120 | ObjectiveTranslation.builder(); |
| 121 | switch (obj.flag()) { |
| 122 | case SPECIFIC: |
| 123 | processSpecificFwd(obj, resultBuilder); |
| 124 | break; |
| 125 | case VERSATILE: |
| 126 | processVersatileFwd(obj, resultBuilder); |
| 127 | break; |
| 128 | case EGRESS: |
| 129 | default: |
| 130 | log.warn("Unsupported ForwardingObjective type '{}'", obj.flag()); |
| 131 | return ObjectiveTranslation.ofError(ObjectiveError.UNSUPPORTED); |
| 132 | } |
| 133 | return resultBuilder.build(); |
| 134 | } |
| 135 | |
| 136 | private void processVersatileFwd(ForwardingObjective obj, |
| 137 | ObjectiveTranslation.Builder resultBuilder) |
| 138 | throws FabricPipelinerException { |
| 139 | |
| 140 | final Set<Criterion.Type> unsupportedCriteria = obj.selector().criteria() |
| 141 | .stream() |
| 142 | .map(Criterion::type) |
| 143 | .filter(t -> !ACL_CRITERIA.contains(t)) |
| 144 | .collect(Collectors.toSet()); |
| 145 | |
| 146 | if (!unsupportedCriteria.isEmpty()) { |
| 147 | throw new FabricPipelinerException(format( |
| 148 | "unsupported ACL criteria %s", unsupportedCriteria.toString())); |
| 149 | } |
| 150 | |
| 151 | aclRule(obj, resultBuilder); |
| 152 | } |
| 153 | |
| 154 | private void processSpecificFwd(ForwardingObjective obj, |
| 155 | ObjectiveTranslation.Builder resultBuilder) |
| 156 | throws FabricPipelinerException { |
| 157 | |
| 158 | final Set<Criterion> criteriaWithMeta = Sets.newHashSet(obj.selector().criteria()); |
| 159 | |
| 160 | // FIXME: Is this really needed? Meta is such an ambiguous field... |
| 161 | // Why would we match on a META field? |
| 162 | if (obj.meta() != null) { |
| 163 | criteriaWithMeta.addAll(obj.meta().criteria()); |
| 164 | } |
| 165 | |
| 166 | final ForwardingFunctionType fft = ForwardingFunctionType.getForwardingFunctionType(obj); |
| 167 | |
| 168 | switch (fft) { |
| 169 | case UNKNOWN: |
| 170 | throw new FabricPipelinerException( |
| 171 | "unable to detect forwarding function type"); |
| 172 | case L2_UNICAST: |
| 173 | bridgingRule(obj, criteriaWithMeta, resultBuilder, false); |
| 174 | break; |
| 175 | case L2_BROADCAST: |
| 176 | bridgingRule(obj, criteriaWithMeta, resultBuilder, true); |
| 177 | break; |
| 178 | case IPV4_ROUTING: |
| 179 | case IPV4_ROUTING_MULTICAST: |
| 180 | ipv4RoutingRule(obj, criteriaWithMeta, resultBuilder); |
| 181 | break; |
| 182 | case MPLS_SEGMENT_ROUTING: |
| 183 | mplsRule(obj, criteriaWithMeta, resultBuilder); |
| 184 | break; |
| 185 | case IPV6_ROUTING: |
| 186 | case IPV6_ROUTING_MULTICAST: |
| 187 | default: |
| 188 | throw new FabricPipelinerException(format( |
| 189 | "unsupported forwarding function type '%s'", |
| 190 | fft)); |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | private void bridgingRule(ForwardingObjective obj, Set<Criterion> criteriaWithMeta, |
| 195 | ObjectiveTranslation.Builder resultBuilder, |
| 196 | boolean broadcast) |
| 197 | throws FabricPipelinerException { |
| 198 | |
| 199 | final VlanIdCriterion vlanIdCriterion = (VlanIdCriterion) criterionNotNull( |
| 200 | criteriaWithMeta, Criterion.Type.VLAN_VID); |
| 201 | final TrafficSelector.Builder selector = DefaultTrafficSelector.builder() |
| 202 | .add(vlanIdCriterion); |
| 203 | |
| 204 | if (!broadcast) { |
| 205 | final EthCriterion ethDstCriterion = (EthCriterion) criterionNotNull( |
| 206 | obj.selector(), Criterion.Type.ETH_DST); |
| 207 | selector.matchEthDstMasked(ethDstCriterion.mac(), MacAddress.EXACT_MASK); |
| 208 | } |
| 209 | |
| 210 | resultBuilder.addFlowRule(flowRule( |
| 211 | obj, FabricConstants.FABRIC_INGRESS_FORWARDING_BRIDGING, selector.build())); |
| 212 | } |
| 213 | |
| 214 | private void ipv4RoutingRule(ForwardingObjective obj, Set<Criterion> criteriaWithMeta, |
| 215 | ObjectiveTranslation.Builder resultBuilder) |
| 216 | throws FabricPipelinerException { |
| 217 | final IPCriterion ipDstCriterion = (IPCriterion) criterionNotNull( |
| 218 | criteriaWithMeta, Criterion.Type.IPV4_DST); |
| 219 | |
| 220 | if (ipDstCriterion.ip().prefixLength() == 0) { |
| 221 | defaultIpv4Route(obj, resultBuilder); |
| 222 | return; |
| 223 | } |
| 224 | |
| 225 | final TrafficSelector selector = DefaultTrafficSelector.builder() |
| 226 | .add(ipDstCriterion) |
| 227 | .build(); |
| 228 | |
| 229 | resultBuilder.addFlowRule(flowRule( |
| 230 | obj, FabricConstants.FABRIC_INGRESS_FORWARDING_ROUTING_V4, selector)); |
| 231 | } |
| 232 | |
| 233 | private void defaultIpv4Route(ForwardingObjective obj, |
| 234 | ObjectiveTranslation.Builder resultBuilder) |
| 235 | throws FabricPipelinerException { |
| 236 | |
| 237 | // Hack to work around the inability to program default rules. |
| 238 | for (String prefix : DEFAULT_ROUTE_PREFIXES) { |
| 239 | final TrafficSelector selector = DefaultTrafficSelector.builder() |
| 240 | .matchIPDst(IpPrefix.valueOf(prefix)).build(); |
| 241 | resultBuilder.addFlowRule(flowRule( |
| 242 | obj, FabricConstants.FABRIC_INGRESS_FORWARDING_ROUTING_V4, selector)); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | private void mplsRule(ForwardingObjective obj, Set<Criterion> criteriaWithMeta, |
| 247 | ObjectiveTranslation.Builder resultBuilder) |
| 248 | throws FabricPipelinerException { |
| 249 | |
| 250 | final MplsCriterion mplsCriterion = (MplsCriterion) criterionNotNull( |
| 251 | criteriaWithMeta, Criterion.Type.MPLS_LABEL); |
| 252 | final TrafficSelector selector = DefaultTrafficSelector.builder() |
| 253 | .add(mplsCriterion) |
| 254 | .build(); |
| 255 | |
| 256 | resultBuilder.addFlowRule(flowRule( |
| 257 | obj, FabricConstants.FABRIC_INGRESS_FORWARDING_MPLS, selector)); |
| 258 | } |
| 259 | |
| 260 | private void aclRule(ForwardingObjective obj, |
| 261 | ObjectiveTranslation.Builder resultBuilder) |
| 262 | throws FabricPipelinerException { |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 263 | if (obj.nextId() == null && obj.treatment() != null) { |
| 264 | final TrafficTreatment treatment = obj.treatment(); |
| 265 | final PortNumber outPort = outputPort(treatment); |
| 266 | if (outPort != null |
| 267 | && outPort.equals(PortNumber.CONTROLLER) |
| 268 | && treatment.allInstructions().size() == 1) { |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 269 | |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 270 | final PiAction aclAction; |
| 271 | if (treatment.clearedDeferred()) { |
| 272 | aclAction = PiAction.builder() |
| 273 | .withId(FabricConstants.FABRIC_INGRESS_ACL_PUNT_TO_CPU) |
| 274 | .build(); |
| 275 | } else { |
| 276 | // Action is SET_CLONE_SESSION_ID |
| 277 | if (obj.op() == Objective.Operation.ADD) { |
| 278 | // Action is ADD, create clone group |
| 279 | final DefaultGroupDescription cloneGroup = |
| 280 | createCloneGroup(obj.appId(), |
| 281 | CLONE_TO_CPU_ID, |
| 282 | outPort); |
| 283 | resultBuilder.addGroup(cloneGroup); |
| 284 | } |
| 285 | aclAction = PiAction.builder() |
| 286 | .withId(FabricConstants.FABRIC_INGRESS_ACL_SET_CLONE_SESSION_ID) |
| 287 | .withParameter(new PiActionParam( |
| 288 | FabricConstants.CLONE_ID, CLONE_TO_CPU_ID)) |
| 289 | .build(); |
| 290 | } |
| 291 | final TrafficTreatment piTreatment = DefaultTrafficTreatment.builder() |
| 292 | .piTableAction(aclAction) |
| 293 | .build(); |
| 294 | resultBuilder.addFlowRule(flowRule( |
| 295 | obj, FabricConstants.FABRIC_INGRESS_ACL_ACL, obj.selector(), piTreatment)); |
| 296 | return; |
| 297 | } |
| 298 | } |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 299 | resultBuilder.addFlowRule(flowRule( |
| 300 | obj, FabricConstants.FABRIC_INGRESS_ACL_ACL, obj.selector())); |
| 301 | } |
| 302 | |
Daniele Moro | 01ca2ab | 2019-06-25 11:48:48 -0700 | [diff] [blame] | 303 | private DefaultGroupDescription createCloneGroup( |
| 304 | ApplicationId appId, |
| 305 | int cloneSessionId, |
| 306 | PortNumber outPort) { |
| 307 | final GroupKey groupKey = new DefaultGroupKey( |
| 308 | FabricPipeliner.KRYO.serialize(cloneSessionId)); |
| 309 | |
| 310 | final List<GroupBucket> bucketList = ImmutableList.of( |
| 311 | createCloneGroupBucket(DefaultTrafficTreatment.builder() |
| 312 | .setOutput(outPort) |
| 313 | .build())); |
| 314 | final DefaultGroupDescription cloneGroup = new DefaultGroupDescription( |
| 315 | deviceId, GroupDescription.Type.CLONE, |
| 316 | new GroupBuckets(bucketList), |
| 317 | groupKey, cloneSessionId, appId); |
| 318 | return cloneGroup; |
| 319 | } |
| 320 | |
Carmelo Cascone | b5324e7 | 2018-11-25 02:26:32 -0800 | [diff] [blame] | 321 | private FlowRule flowRule( |
| 322 | ForwardingObjective obj, PiTableId tableId, TrafficSelector selector) |
| 323 | throws FabricPipelinerException { |
| 324 | return flowRule(obj, tableId, selector, nextIdOrTreatment(obj, tableId)); |
| 325 | } |
| 326 | |
| 327 | private static TrafficTreatment nextIdOrTreatment( |
| 328 | ForwardingObjective obj, PiTableId tableId) |
| 329 | throws FabricPipelinerException { |
| 330 | if (obj.nextId() == null) { |
| 331 | return obj.treatment(); |
| 332 | } else { |
| 333 | if (!NEXT_ID_ACTIONS.containsKey(tableId)) { |
| 334 | throw new FabricPipelinerException(format( |
| 335 | "BUG? no next_id action set for table %s", tableId)); |
| 336 | } |
| 337 | return DefaultTrafficTreatment.builder() |
| 338 | .piTableAction( |
| 339 | setNextIdAction(obj.nextId(), |
| 340 | NEXT_ID_ACTIONS.get(tableId))) |
| 341 | .build(); |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | private static PiAction setNextIdAction(Integer nextId, PiActionId actionId) { |
| 346 | final PiActionParam nextIdParam = new PiActionParam(FabricConstants.NEXT_ID, nextId); |
| 347 | return PiAction.builder() |
| 348 | .withId(actionId) |
| 349 | .withParameter(nextIdParam) |
| 350 | .build(); |
| 351 | } |
| 352 | } |