| /* |
| * Copyright 2015 Open Networking Laboratory |
| * |
| * 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 java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.behaviour.NextGroup; |
| 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.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.criteria.Criterion; |
| import org.onosproject.net.flow.criteria.EthCriterion; |
| import org.onosproject.net.flow.criteria.EthTypeCriterion; |
| import org.onosproject.net.flow.criteria.IPCriterion; |
| import org.onosproject.net.flow.criteria.MplsCriterion; |
| import org.onosproject.net.flow.instructions.Instruction; |
| import org.onosproject.net.flowobjective.FilteringObjective; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.ObjectiveError; |
| import org.onosproject.net.group.Group; |
| import org.onosproject.net.group.GroupKey; |
| |
| /** |
| * Spring-open driver implementation for Dell hardware switches. |
| */ |
| public class SpringOpenTTPDell extends SpringOpenTTP { |
| |
| /* Table IDs to be used for Dell Open Segment Routers*/ |
| private static final int DELL_TABLE_VLAN = 17; |
| private static final int DELL_TABLE_TMAC = 18; |
| private static final int DELL_TABLE_IPV4_UNICAST = 30; |
| private static final int DELL_TABLE_MPLS = 25; |
| private static final int DELL_TABLE_ACL = 40; |
| |
| //TODO: Store this info in the distributed store. |
| private MacAddress deviceTMac = null; |
| |
| public SpringOpenTTPDell() { |
| super(); |
| vlanTableId = DELL_TABLE_VLAN; |
| tmacTableId = DELL_TABLE_TMAC; |
| ipv4UnicastTableId = DELL_TABLE_IPV4_UNICAST; |
| mplsTableId = DELL_TABLE_MPLS; |
| aclTableId = DELL_TABLE_ACL; |
| } |
| |
| @Override |
| protected void setTableMissEntries() { |
| // No need to set table-miss-entries in Dell switches |
| return; |
| } |
| |
| @Override |
| //Dell switches need ETH_DST based match condition in all IP table entries. |
| //So this method overrides the default spring-open behavior and adds |
| //ETH_DST match condition while pushing IP table flow rules |
| protected Collection<FlowRule> processSpecific(ForwardingObjective fwd) { |
| log.debug("Processing specific"); |
| TrafficSelector selector = fwd.selector(); |
| EthTypeCriterion ethType = (EthTypeCriterion) selector |
| .getCriterion(Criterion.Type.ETH_TYPE); |
| if ((ethType == null) || |
| ((((short) ethType.ethType()) != Ethernet.TYPE_IPV4) && |
| (((short) ethType.ethType()) != Ethernet.MPLS_UNICAST))) { |
| log.debug("processSpecific: Unsupported " |
| + "forwarding objective criteraia"); |
| fail(fwd, ObjectiveError.UNSUPPORTED); |
| return Collections.emptySet(); |
| } |
| |
| TrafficSelector.Builder filteredSelectorBuilder = |
| DefaultTrafficSelector.builder(); |
| int forTableId = -1; |
| if (((short) ethType.ethType()) == Ethernet.TYPE_IPV4) { |
| if (deviceTMac == null) { |
| log.debug("processSpecific: ETH_DST filtering " |
| + "objective is not set which is required " |
| + "before sending a IPv4 forwarding objective"); |
| //TODO: Map the error to more appropriate error code. |
| fail(fwd, ObjectiveError.DEVICEMISSING); |
| return Collections.emptySet(); |
| } |
| filteredSelectorBuilder = filteredSelectorBuilder |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchEthDst(deviceTMac) |
| .matchIPDst(((IPCriterion) selector |
| .getCriterion(Criterion.Type.IPV4_DST)) |
| .ip()); |
| forTableId = ipv4UnicastTableId; |
| log.debug("processing IPv4 specific forwarding objective"); |
| } else { |
| filteredSelectorBuilder = filteredSelectorBuilder |
| .matchEthType(Ethernet.MPLS_UNICAST) |
| .matchMplsLabel(((MplsCriterion) |
| selector.getCriterion(Criterion.Type.MPLS_LABEL)).label()); |
| //TODO: Add Match for BoS |
| //if (selector.getCriterion(Criterion.Type.MPLS_BOS) != null) { |
| //} |
| forTableId = mplsTableId; |
| log.debug("processing MPLS specific forwarding objective"); |
| } |
| |
| TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment |
| .builder(); |
| if (fwd.treatment() != null) { |
| for (Instruction i : fwd.treatment().allInstructions()) { |
| treatmentBuilder.add(i); |
| } |
| } |
| |
| if (fwd.nextId() != null) { |
| NextGroup next = flowObjectiveStore.getNextGroup(fwd.nextId()); |
| |
| if (next != null) { |
| GroupKey key = appKryo.deserialize(next.data()); |
| |
| Group group = groupService.getGroup(deviceId, key); |
| |
| if (group == null) { |
| log.warn("The group left!"); |
| fail(fwd, ObjectiveError.GROUPMISSING); |
| return Collections.emptySet(); |
| } |
| treatmentBuilder.group(group.id()); |
| log.debug("Adding OUTGROUP action"); |
| } |
| } |
| |
| TrafficSelector filteredSelector = filteredSelectorBuilder.build(); |
| TrafficTreatment treatment = treatmentBuilder.transition(aclTableId) |
| .build(); |
| |
| FlowRule.Builder ruleBuilder = DefaultFlowRule.builder() |
| .fromApp(fwd.appId()).withPriority(fwd.priority()) |
| .forDevice(deviceId).withSelector(filteredSelector) |
| .withTreatment(treatment); |
| |
| if (fwd.permanent()) { |
| ruleBuilder.makePermanent(); |
| } else { |
| ruleBuilder.makeTemporary(fwd.timeout()); |
| } |
| |
| ruleBuilder.forTable(forTableId); |
| return Collections.singletonList(ruleBuilder.build()); |
| |
| } |
| |
| @Override |
| //Dell switches need ETH_DST based match condition in all IP table entries. |
| //So while processing the ETH_DST based filtering objective, store |
| //the device MAC to be used locally to use it while pushing the IP rules. |
| protected List<FlowRule> processEthDstFilter(Criterion c, |
| FilteringObjective filt, |
| ApplicationId applicationId) { |
| List<FlowRule> rules = new ArrayList<FlowRule>(); |
| EthCriterion e = (EthCriterion) c; |
| TrafficSelector.Builder selectorIp = DefaultTrafficSelector |
| .builder(); |
| TrafficTreatment.Builder treatmentIp = DefaultTrafficTreatment |
| .builder(); |
| |
| // Store device termination Mac to be used in IP flow entries |
| deviceTMac = e.mac(); |
| |
| selectorIp.matchEthDst(e.mac()); |
| selectorIp.matchEthType(Ethernet.TYPE_IPV4); |
| treatmentIp.transition(ipv4UnicastTableId); |
| FlowRule ruleIp = DefaultFlowRule.builder().forDevice(deviceId) |
| .withSelector(selectorIp.build()) |
| .withTreatment(treatmentIp.build()) |
| .withPriority(filt.priority()).fromApp(applicationId) |
| .makePermanent().forTable(tmacTableId).build(); |
| log.debug("adding IP ETH rule for MAC: {}", e.mac()); |
| rules.add(ruleIp); |
| |
| TrafficSelector.Builder selectorMpls = DefaultTrafficSelector |
| .builder(); |
| TrafficTreatment.Builder treatmentMpls = DefaultTrafficTreatment |
| .builder(); |
| selectorMpls.matchEthDst(e.mac()); |
| selectorMpls.matchEthType(Ethernet.MPLS_UNICAST); |
| treatmentMpls.transition(mplsTableId); |
| FlowRule ruleMpls = DefaultFlowRule.builder() |
| .forDevice(deviceId).withSelector(selectorMpls.build()) |
| .withTreatment(treatmentMpls.build()) |
| .withPriority(filt.priority()).fromApp(applicationId) |
| .makePermanent().forTable(tmacTableId).build(); |
| log.debug("adding MPLS ETH rule for MAC: {}", e.mac()); |
| rules.add(ruleMpls); |
| |
| return rules; |
| } |
| |
| } |