| /* |
| * Copyright 2016-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.driver.pipeline; |
| |
| import com.google.common.cache.Cache; |
| import com.google.common.cache.CacheBuilder; |
| import com.google.common.cache.RemovalCause; |
| import com.google.common.cache.RemovalNotification; |
| import com.google.common.collect.Lists; |
| import org.apache.commons.lang3.tuple.ImmutablePair; |
| import org.apache.commons.lang3.tuple.Pair; |
| import org.onlab.osgi.ServiceDirectory; |
| import org.onlab.packet.EthType; |
| import org.onlab.packet.IPv4; |
| import org.onlab.packet.VlanId; |
| import org.onlab.util.KryoNamespace; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| 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.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.criteria.Criteria; |
| import org.onosproject.net.flow.criteria.Criterion; |
| import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| import org.onosproject.net.flow.criteria.IPCriterion; |
| import org.onosproject.net.flow.criteria.IPProtocolCriterion; |
| import org.onosproject.net.flow.criteria.PortCriterion; |
| import org.onosproject.net.flow.criteria.UdpPortCriterion; |
| import org.onosproject.net.flow.criteria.VlanIdCriterion; |
| import org.onosproject.net.flow.instructions.Instruction; |
| import org.onosproject.net.flow.instructions.Instructions; |
| import org.onosproject.net.flow.instructions.L2ModificationInstruction; |
| import org.onosproject.net.flowobjective.FilteringObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveStore; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.NextObjective; |
| import org.onosproject.net.flowobjective.Objective; |
| import org.onosproject.net.flowobjective.ObjectiveError; |
| import org.onosproject.net.group.DefaultGroupBucket; |
| import org.onosproject.net.group.DefaultGroupDescription; |
| import org.onosproject.net.group.DefaultGroupKey; |
| import org.onosproject.net.group.Group; |
| import org.onosproject.net.group.GroupBucket; |
| import org.onosproject.net.group.GroupBuckets; |
| import org.onosproject.net.group.GroupDescription; |
| import org.onosproject.net.group.GroupEvent; |
| import org.onosproject.net.group.GroupKey; |
| import org.onosproject.net.group.GroupListener; |
| import org.onosproject.net.group.GroupService; |
| import org.onosproject.store.serializers.KryoNamespaces; |
| import org.onosproject.store.service.StorageService; |
| import org.slf4j.Logger; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Optional; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Collectors; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Pipeliner for OLT device. |
| */ |
| |
| public class OltPipeline extends AbstractHandlerBehaviour implements Pipeliner { |
| |
| private static final Integer QQ_TABLE = 1; |
| private static final short MCAST_VLAN = 4000; |
| private static final String OLTCOOKIES = "olt-cookies-must-be-unique"; |
| private final Logger log = getLogger(getClass()); |
| |
| private ServiceDirectory serviceDirectory; |
| private FlowRuleService flowRuleService; |
| private GroupService groupService; |
| private CoreService coreService; |
| private StorageService storageService; |
| |
| private DeviceId deviceId; |
| private ApplicationId appId; |
| |
| |
| protected FlowObjectiveStore flowObjectiveStore; |
| |
| private Cache<GroupKey, NextObjective> pendingGroups; |
| |
| protected static KryoNamespace appKryo = new KryoNamespace.Builder() |
| .register(KryoNamespaces.API) |
| .register(GroupKey.class) |
| .register(DefaultGroupKey.class) |
| .register(OLTPipelineGroup.class) |
| .build("OltPipeline"); |
| |
| @Override |
| public void init(DeviceId deviceId, PipelinerContext context) { |
| log.debug("Initiate OLT pipeline"); |
| this.serviceDirectory = context.directory(); |
| this.deviceId = deviceId; |
| |
| flowRuleService = serviceDirectory.get(FlowRuleService.class); |
| coreService = serviceDirectory.get(CoreService.class); |
| groupService = serviceDirectory.get(GroupService.class); |
| flowObjectiveStore = context.store(); |
| storageService = serviceDirectory.get(StorageService.class); |
| |
| appId = coreService.registerApplication( |
| "org.onosproject.driver.OLTPipeline"); |
| |
| |
| pendingGroups = CacheBuilder.newBuilder() |
| .expireAfterWrite(20, TimeUnit.SECONDS) |
| .removalListener((RemovalNotification<GroupKey, NextObjective> notification) -> { |
| if (notification.getCause() == RemovalCause.EXPIRED) { |
| fail(notification.getValue(), ObjectiveError.GROUPINSTALLATIONFAILED); |
| } |
| }).build(); |
| |
| groupService.addListener(new InnerGroupListener()); |
| |
| } |
| |
| @Override |
| public void filter(FilteringObjective filter) { |
| Instructions.OutputInstruction output; |
| |
| if (filter.meta() != null && !filter.meta().immediate().isEmpty()) { |
| output = (Instructions.OutputInstruction) filter.meta().immediate().stream() |
| .filter(t -> t.type().equals(Instruction.Type.OUTPUT)) |
| .limit(1) |
| .findFirst().get(); |
| |
| if (output == null || !output.port().equals(PortNumber.CONTROLLER)) { |
| log.warn("OLT can only filter packet to controller"); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| return; |
| } |
| } else { |
| fail(filter, ObjectiveError.BADPARAMS); |
| return; |
| } |
| |
| if (filter.key().type() != Criterion.Type.IN_PORT) { |
| fail(filter, ObjectiveError.BADPARAMS); |
| return; |
| } |
| |
| EthTypeCriterion ethType = (EthTypeCriterion) |
| filterForCriterion(filter.conditions(), Criterion.Type.ETH_TYPE); |
| |
| if (ethType == null) { |
| fail(filter, ObjectiveError.BADPARAMS); |
| return; |
| } |
| |
| if (ethType.ethType().equals(EthType.EtherType.EAPOL.ethType())) { |
| provisionEthTypeBasedFilter(filter, ethType, output); |
| } else if (ethType.ethType().equals(EthType.EtherType.LLDP.ethType())) { |
| provisionEthTypeBasedFilter(filter, ethType, output); |
| |
| } else if (ethType.ethType().equals(EthType.EtherType.IPV4.ethType())) { |
| IPProtocolCriterion ipProto = (IPProtocolCriterion) |
| filterForCriterion(filter.conditions(), Criterion.Type.IP_PROTO); |
| if (ipProto == null) { |
| log.warn("OLT can only filter IGMP and DHCP"); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| return; |
| } |
| if (ipProto.protocol() == IPv4.PROTOCOL_IGMP) { |
| provisionIgmp(filter, ethType, ipProto, output); |
| } else if (ipProto.protocol() == IPv4.PROTOCOL_UDP) { |
| UdpPortCriterion udpSrcPort = (UdpPortCriterion) |
| filterForCriterion(filter.conditions(), Criterion.Type.UDP_SRC); |
| |
| UdpPortCriterion udpDstPort = (UdpPortCriterion) |
| filterForCriterion(filter.conditions(), Criterion.Type.UDP_DST); |
| |
| if (udpSrcPort.udpPort().toInt() != 68 || udpDstPort.udpPort().toInt() != 67) { |
| log.warn("OLT can only filter DHCP, wrong UDP Src or Dst Port"); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| } |
| provisionDhcp(filter, ethType, ipProto, udpSrcPort, udpDstPort, output); |
| } else { |
| log.warn("OLT can only filter IGMP and DHCP"); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| } |
| } else { |
| log.warn("\nOnly the following are Supported in OLT for filter ->\n" |
| + "ETH TYPE : EAPOL, LLDP and IPV4\n" |
| + "IPV4 TYPE: IGMP and UDP (for DHCP)"); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| } |
| |
| } |
| |
| |
| @Override |
| public void forward(ForwardingObjective fwd) { |
| |
| if (checkForMulticast(fwd)) { |
| processMulticastRule(fwd); |
| return; |
| } |
| |
| TrafficTreatment treatment = fwd.treatment(); |
| |
| List<Instruction> instructions = treatment.allInstructions(); |
| |
| Optional<Instruction> vlanIntruction = instructions.stream() |
| .filter(i -> i.type() == Instruction.Type.L2MODIFICATION) |
| .filter(i -> ((L2ModificationInstruction) i).subtype() == |
| L2ModificationInstruction.L2SubType.VLAN_PUSH || |
| ((L2ModificationInstruction) i).subtype() == |
| L2ModificationInstruction.L2SubType.VLAN_POP) |
| .findAny(); |
| |
| if (!vlanIntruction.isPresent()) { |
| installNoModificationRules(fwd); |
| } else { |
| L2ModificationInstruction vlanIns = |
| (L2ModificationInstruction) vlanIntruction.get(); |
| |
| if (vlanIns.subtype() == L2ModificationInstruction.L2SubType.VLAN_PUSH) { |
| installUpstreamRules(fwd); |
| } else if (vlanIns.subtype() == L2ModificationInstruction.L2SubType.VLAN_POP) { |
| installDownstreamRules(fwd); |
| } else { |
| log.error("Unknown OLT operation: {}", fwd); |
| fail(fwd, ObjectiveError.UNSUPPORTED); |
| return; |
| } |
| } |
| |
| pass(fwd); |
| |
| } |
| |
| |
| @Override |
| public void next(NextObjective nextObjective) { |
| if (nextObjective.type() != NextObjective.Type.BROADCAST) { |
| log.error("OLT only supports broadcast groups."); |
| fail(nextObjective, ObjectiveError.BADPARAMS); |
| } |
| |
| if (nextObjective.next().size() != 1) { |
| log.error("OLT only supports singleton broadcast groups."); |
| fail(nextObjective, ObjectiveError.BADPARAMS); |
| } |
| |
| TrafficTreatment treatment = nextObjective.next().stream().findFirst().get(); |
| |
| |
| GroupBucket bucket = DefaultGroupBucket.createAllGroupBucket(treatment); |
| GroupKey key = new DefaultGroupKey(appKryo.serialize(nextObjective.id())); |
| |
| |
| pendingGroups.put(key, nextObjective); |
| |
| switch (nextObjective.op()) { |
| case ADD: |
| GroupDescription groupDesc = |
| new DefaultGroupDescription(deviceId, |
| GroupDescription.Type.ALL, |
| new GroupBuckets(Collections.singletonList(bucket)), |
| key, |
| null, |
| nextObjective.appId()); |
| groupService.addGroup(groupDesc); |
| break; |
| case REMOVE: |
| groupService.removeGroup(deviceId, key, nextObjective.appId()); |
| break; |
| case ADD_TO_EXISTING: |
| groupService.addBucketsToGroup(deviceId, key, |
| new GroupBuckets(Collections.singletonList(bucket)), |
| key, nextObjective.appId()); |
| break; |
| case REMOVE_FROM_EXISTING: |
| groupService.removeBucketsFromGroup(deviceId, key, |
| new GroupBuckets(Collections.singletonList(bucket)), |
| key, nextObjective.appId()); |
| break; |
| default: |
| log.warn("Unknown next objective operation: {}", nextObjective.op()); |
| } |
| |
| |
| } |
| |
| private void processMulticastRule(ForwardingObjective fwd) { |
| if (fwd.nextId() == null) { |
| log.error("Multicast objective does not have a next id"); |
| fail(fwd, ObjectiveError.BADPARAMS); |
| } |
| |
| GroupKey key = getGroupForNextObjective(fwd.nextId()); |
| |
| if (key == null) { |
| log.error("Group for forwarding objective missing: {}", fwd); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| } |
| |
| Group group = groupService.getGroup(deviceId, key); |
| TrafficTreatment treatment = |
| buildTreatment(Instructions.createGroup(group.id())); |
| |
| FlowRule rule = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .forTable(0) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(fwd.selector()) |
| .withTreatment(treatment) |
| .build(); |
| |
| FlowRuleOperations.Builder builder = FlowRuleOperations.builder(); |
| switch (fwd.op()) { |
| |
| case ADD: |
| builder.add(rule); |
| break; |
| case REMOVE: |
| builder.remove(rule); |
| break; |
| case ADD_TO_EXISTING: |
| case REMOVE_FROM_EXISTING: |
| break; |
| default: |
| log.warn("Unknown forwarding operation: {}", fwd.op()); |
| } |
| |
| applyFlowRules(builder, fwd); |
| |
| } |
| |
| private boolean checkForMulticast(ForwardingObjective fwd) { |
| |
| IPCriterion ip = (IPCriterion) filterForCriterion(fwd.selector().criteria(), |
| Criterion.Type.IPV4_DST); |
| |
| if (ip == null) { |
| return false; |
| } |
| |
| return ip.ip().isMulticast(); |
| |
| } |
| |
| private GroupKey getGroupForNextObjective(Integer nextId) { |
| NextGroup next = flowObjectiveStore.getNextGroup(nextId); |
| return appKryo.deserialize(next.data()); |
| |
| } |
| |
| private void installNoModificationRules(ForwardingObjective fwd) { |
| Instructions.OutputInstruction output = (Instructions.OutputInstruction) fetchOutput(fwd, "downstream"); |
| |
| TrafficSelector selector = fwd.selector(); |
| |
| Criterion inport = selector.getCriterion(Criterion.Type.IN_PORT); |
| Criterion outerVlan = selector.getCriterion(Criterion.Type.VLAN_VID); |
| Criterion innerVlan = selector.getCriterion(Criterion.Type.INNER_VLAN_VID); |
| Criterion metadata; |
| |
| if (inport == null || output == null || innerVlan == null || outerVlan == null) { |
| log.error("Forwarding objective is underspecified: {}", fwd); |
| fail(fwd, ObjectiveError.BADPARAMS); |
| return; |
| } |
| |
| metadata = Criteria.matchMetadata(((VlanIdCriterion) innerVlan).vlanId().toShort()); |
| |
| FlowRule.Builder outer = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(buildSelector(inport, outerVlan, metadata)) |
| .withTreatment(buildTreatment(output)); |
| |
| applyRules(fwd, outer); |
| } |
| |
| private void installDownstreamRules(ForwardingObjective fwd) { |
| List<Pair<Instruction, Instruction>> vlanOps = |
| vlanOps(fwd, |
| L2ModificationInstruction.L2SubType.VLAN_POP); |
| |
| if (vlanOps == null) { |
| return; |
| } |
| |
| Instructions.OutputInstruction output = (Instructions.OutputInstruction) fetchOutput(fwd, "downstream"); |
| |
| if (output == null) { |
| return; |
| } |
| |
| Pair<Instruction, Instruction> popAndRewrite = vlanOps.remove(0); |
| |
| TrafficSelector selector = fwd.selector(); |
| |
| Criterion outerVlan = selector.getCriterion(Criterion.Type.VLAN_VID); |
| Criterion innerVlan = selector.getCriterion(Criterion.Type.INNER_VLAN_VID); |
| Criterion inport = selector.getCriterion(Criterion.Type.IN_PORT); |
| |
| long cvid = ((VlanIdCriterion) innerVlan).vlanId().toShort(); |
| long outPort = output.port().toLong() & 0x0FFFFFFFFL; |
| |
| Criterion metadata = Criteria.matchMetadata((cvid << 32) | outPort); |
| |
| if (outerVlan == null || inport == null) { |
| log.error("Forwarding objective is underspecified: {}", fwd); |
| fail(fwd, ObjectiveError.BADPARAMS); |
| return; |
| } |
| |
| Criterion innerVid = Criteria.matchVlanId(((VlanIdCriterion) innerVlan).vlanId()); |
| |
| FlowRule.Builder outer = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(buildSelector(inport, outerVlan, metadata)) |
| .withTreatment(buildTreatment(popAndRewrite.getLeft(), |
| Instructions.transition(QQ_TABLE))); |
| |
| FlowRule.Builder inner = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .forTable(QQ_TABLE) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(buildSelector(inport, innerVid)) |
| .withTreatment(buildTreatment(popAndRewrite.getLeft(), |
| output)); |
| |
| applyRules(fwd, inner, outer); |
| |
| } |
| |
| private void installUpstreamRules(ForwardingObjective fwd) { |
| List<Pair<Instruction, Instruction>> vlanOps = |
| vlanOps(fwd, |
| L2ModificationInstruction.L2SubType.VLAN_PUSH); |
| |
| if (vlanOps == null) { |
| return; |
| } |
| |
| Instruction output = fetchOutput(fwd, "upstream"); |
| |
| if (output == null) { |
| return; |
| } |
| |
| Pair<Instruction, Instruction> innerPair = vlanOps.remove(0); |
| |
| Pair<Instruction, Instruction> outerPair = vlanOps.remove(0); |
| |
| // Add the VLAN_PUSH treatment if we're matching on VlanId.NONE |
| Criterion vlanMatchCriterion = filterForCriterion(fwd.selector().criteria(), Criterion.Type.VLAN_VID); |
| boolean push = false; |
| if (vlanMatchCriterion != null) { |
| push = ((VlanIdCriterion) vlanMatchCriterion).vlanId().equals(VlanId.NONE); |
| } |
| |
| TrafficTreatment treatment; |
| if (push) { |
| treatment = buildTreatment(innerPair.getLeft(), innerPair.getRight(), |
| Instructions.transition(QQ_TABLE)); |
| } else { |
| treatment = buildTreatment(innerPair.getRight(), Instructions.transition(QQ_TABLE)); |
| } |
| |
| FlowRule.Builder inner = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(fwd.selector()) |
| .withTreatment(treatment); |
| |
| PortCriterion inPort = (PortCriterion) |
| fwd.selector().getCriterion(Criterion.Type.IN_PORT); |
| |
| VlanId cVlanId = ((L2ModificationInstruction.ModVlanIdInstruction) |
| innerPair.getRight()).vlanId(); |
| |
| FlowRule.Builder outer = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()) |
| .forDevice(deviceId) |
| .forTable(QQ_TABLE) |
| .makePermanent() |
| .withPriority(fwd.priority()) |
| .withSelector(buildSelector(inPort, |
| Criteria.matchVlanId(cVlanId))) |
| .withTreatment(buildTreatment(outerPair.getLeft(), |
| outerPair.getRight(), |
| output)); |
| |
| applyRules(fwd, inner, outer); |
| |
| } |
| |
| private Instruction fetchOutput(ForwardingObjective fwd, String direction) { |
| Instruction output = fwd.treatment().allInstructions().stream() |
| .filter(i -> i.type() == Instruction.Type.OUTPUT) |
| .findFirst().orElse(null); |
| |
| if (output == null) { |
| log.error("OLT {} rule has no output", direction); |
| fail(fwd, ObjectiveError.BADPARAMS); |
| return null; |
| } |
| return output; |
| } |
| |
| private List<Pair<Instruction, Instruction>> vlanOps(ForwardingObjective fwd, |
| L2ModificationInstruction.L2SubType type) { |
| |
| List<Pair<Instruction, Instruction>> vlanOps = findVlanOps( |
| fwd.treatment().allInstructions(), type); |
| |
| if (vlanOps == null) { |
| String direction = type == L2ModificationInstruction.L2SubType.VLAN_POP |
| ? "downstream" : "upstream"; |
| log.error("Missing vlan operations in {} forwarding: {}", direction, fwd); |
| fail(fwd, ObjectiveError.BADPARAMS); |
| return null; |
| } |
| return vlanOps; |
| } |
| |
| |
| private List<Pair<Instruction, Instruction>> findVlanOps(List<Instruction> instructions, |
| L2ModificationInstruction.L2SubType type) { |
| |
| List<Instruction> vlanPushs = findL2Instructions( |
| type, |
| instructions); |
| List<Instruction> vlanSets = findL2Instructions( |
| L2ModificationInstruction.L2SubType.VLAN_ID, |
| instructions); |
| |
| if (vlanPushs.size() != vlanSets.size()) { |
| return null; |
| } |
| |
| List<Pair<Instruction, Instruction>> pairs = Lists.newArrayList(); |
| |
| for (int i = 0; i < vlanPushs.size(); i++) { |
| pairs.add(new ImmutablePair<>(vlanPushs.get(i), vlanSets.get(i))); |
| } |
| return pairs; |
| } |
| |
| private List<Instruction> findL2Instructions(L2ModificationInstruction.L2SubType subType, |
| List<Instruction> actions) { |
| return actions.stream() |
| .filter(i -> i.type() == Instruction.Type.L2MODIFICATION) |
| .filter(i -> ((L2ModificationInstruction) i).subtype() == subType) |
| .collect(Collectors.toList()); |
| } |
| |
| private void provisionEthTypeBasedFilter(FilteringObjective filter, |
| EthTypeCriterion ethType, |
| Instructions.OutputInstruction output) { |
| |
| TrafficSelector selector = buildSelector(filter.key(), ethType); |
| TrafficTreatment treatment = buildTreatment(output); |
| buildAndApplyRule(filter, selector, treatment); |
| |
| } |
| |
| private void provisionIgmp(FilteringObjective filter, EthTypeCriterion ethType, |
| IPProtocolCriterion ipProto, |
| Instructions.OutputInstruction output) { |
| TrafficSelector selector = buildSelector(filter.key(), ethType, ipProto); |
| TrafficTreatment treatment = buildTreatment(output); |
| buildAndApplyRule(filter, selector, treatment); |
| } |
| |
| private void provisionDhcp(FilteringObjective filter, EthTypeCriterion ethType, |
| IPProtocolCriterion ipProto, |
| UdpPortCriterion udpSrcPort, |
| UdpPortCriterion udpDstPort, |
| Instructions.OutputInstruction output) { |
| TrafficSelector selector = buildSelector(filter.key(), ethType, ipProto, udpSrcPort, udpDstPort); |
| TrafficTreatment treatment = buildTreatment(output); |
| buildAndApplyRule(filter, selector, treatment); |
| } |
| private void buildAndApplyRule(FilteringObjective filter, TrafficSelector selector, |
| TrafficTreatment treatment) { |
| FlowRule rule = DefaultFlowRule.builder() |
| .fromApp(filter.appId()) |
| .forDevice(deviceId) |
| .forTable(0) |
| .makePermanent() |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(filter.priority()) |
| .build(); |
| |
| FlowRuleOperations.Builder opsBuilder = FlowRuleOperations.builder(); |
| |
| switch (filter.type()) { |
| case PERMIT: |
| opsBuilder.add(rule); |
| break; |
| case DENY: |
| opsBuilder.remove(rule); |
| break; |
| default: |
| log.warn("Unknown filter type : {}", filter.type()); |
| fail(filter, ObjectiveError.UNSUPPORTED); |
| } |
| |
| applyFlowRules(opsBuilder, filter); |
| } |
| |
| private void applyRules(ForwardingObjective fwd, |
| FlowRule.Builder outer) { |
| FlowRuleOperations.Builder builder = FlowRuleOperations.builder(); |
| switch (fwd.op()) { |
| case ADD: |
| builder.add(outer.build()); |
| break; |
| case REMOVE: |
| builder.remove(outer.build()); |
| break; |
| case ADD_TO_EXISTING: |
| break; |
| case REMOVE_FROM_EXISTING: |
| break; |
| default: |
| log.warn("Unknown forwarding operation: {}", fwd.op()); |
| } |
| |
| applyFlowRules(builder, fwd); |
| } |
| |
| private void applyRules(ForwardingObjective fwd, |
| FlowRule.Builder inner, FlowRule.Builder outer) { |
| FlowRuleOperations.Builder builder = FlowRuleOperations.builder(); |
| switch (fwd.op()) { |
| case ADD: |
| builder.add(inner.build()).add(outer.build()); |
| break; |
| case REMOVE: |
| builder.remove(inner.build()).remove(outer.build()); |
| break; |
| case ADD_TO_EXISTING: |
| break; |
| case REMOVE_FROM_EXISTING: |
| break; |
| default: |
| log.warn("Unknown forwarding operation: {}", fwd.op()); |
| } |
| |
| applyFlowRules(builder, fwd); |
| } |
| |
| private void applyFlowRules(FlowRuleOperations.Builder builder, |
| Objective objective) { |
| flowRuleService.apply(builder.build(new FlowRuleOperationsContext() { |
| @Override |
| public void onSuccess(FlowRuleOperations ops) { |
| pass(objective); |
| } |
| |
| @Override |
| public void onError(FlowRuleOperations ops) { |
| fail(objective, ObjectiveError.FLOWINSTALLATIONFAILED); |
| } |
| })); |
| } |
| |
| private Criterion filterForCriterion(Collection<Criterion> criteria, Criterion.Type type) { |
| return criteria.stream() |
| .filter(c -> c.type().equals(type)) |
| .limit(1) |
| .findFirst().orElse(null); |
| } |
| |
| private TrafficSelector buildSelector(Criterion... criteria) { |
| |
| |
| TrafficSelector.Builder sBuilder = DefaultTrafficSelector.builder(); |
| |
| for (Criterion c : criteria) { |
| sBuilder.add(c); |
| } |
| |
| return sBuilder.build(); |
| } |
| |
| private TrafficTreatment buildTreatment(Instruction... instructions) { |
| |
| |
| TrafficTreatment.Builder tBuilder = DefaultTrafficTreatment.builder(); |
| |
| for (Instruction i : instructions) { |
| tBuilder.add(i); |
| } |
| |
| return tBuilder.build(); |
| } |
| |
| |
| private void fail(Objective obj, ObjectiveError error) { |
| obj.context().ifPresent(context -> context.onError(obj, error)); |
| } |
| |
| private void pass(Objective obj) { |
| obj.context().ifPresent(context -> context.onSuccess(obj)); |
| } |
| |
| |
| private class InnerGroupListener implements GroupListener { |
| @Override |
| public void event(GroupEvent event) { |
| if (event.type() == GroupEvent.Type.GROUP_ADDED || |
| event.type() == GroupEvent.Type.GROUP_UPDATED) { |
| GroupKey key = event.subject().appCookie(); |
| |
| NextObjective obj = pendingGroups.getIfPresent(key); |
| if (obj != null) { |
| flowObjectiveStore.putNextGroup(obj.id(), new OLTPipelineGroup(key)); |
| pass(obj); |
| pendingGroups.invalidate(key); |
| } |
| } |
| } |
| } |
| |
| private static class OLTPipelineGroup implements NextGroup { |
| |
| private final GroupKey key; |
| |
| public OLTPipelineGroup(GroupKey key) { |
| this.key = key; |
| } |
| |
| public GroupKey key() { |
| return key; |
| } |
| |
| @Override |
| public byte[] data() { |
| return appKryo.serialize(key); |
| } |
| |
| } |
| |
| @Override |
| public List<String> getNextMappings(NextGroup nextGroup) { |
| // TODO Implementation deferred to vendor |
| return null; |
| } |
| } |