| /* |
| * Copyright 2015-present 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.vtn.table.impl; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import org.onlab.osgi.DefaultServiceDirectory; |
| import org.onlab.osgi.ServiceDirectory; |
| import org.onlab.packet.EthType.EtherType; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.IpAddress; |
| import org.onlab.packet.MacAddress; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.behaviour.ExtensionTreatmentResolver; |
| import org.onosproject.net.driver.DriverHandler; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.flow.TrafficSelector; |
| import org.onosproject.net.flow.TrafficTreatment; |
| import org.onosproject.net.flow.instructions.ExtensionTreatment; |
| import org.onosproject.net.flow.instructions.ExtensionTreatmentType; |
| import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.ForwardingObjective.Flag; |
| import org.onosproject.net.flowobjective.Objective; |
| import org.onosproject.net.flowobjective.Objective.Operation; |
| import org.onosproject.vtn.table.ArpService; |
| import org.onosproject.vtnrsc.SegmentationId; |
| import org.slf4j.Logger; |
| |
| /** |
| * ArpTable class providing the rules in ARP table. |
| */ |
| public class ArpServiceImpl implements ArpService { |
| private final Logger log = getLogger(getClass()); |
| |
| private static final int ARP_PRIORITY = 0xffff; |
| private static final short ARP_RESPONSE = 0x2; |
| private static final EtherType ARP_TYPE = EtherType.ARP; |
| |
| private final FlowObjectiveService flowObjectiveService; |
| private final ApplicationId appId; |
| |
| /** |
| * Construct a ArpServiceImpl object. |
| * |
| * @param appId the application id of vtn |
| */ |
| public ArpServiceImpl(ApplicationId appId) { |
| this.appId = checkNotNull(appId, "ApplicationId can not be null"); |
| ServiceDirectory serviceDirectory = new DefaultServiceDirectory(); |
| this.flowObjectiveService = serviceDirectory.get(FlowObjectiveService.class); |
| } |
| |
| @Override |
| public void programArpRules(DriverHandler hander, DeviceId deviceId, |
| IpAddress dstIP, SegmentationId srcVni, |
| MacAddress dstMac, Operation type) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(ARP_TYPE.ethType().toShort()) |
| .matchArpTpa(Ip4Address.valueOf(dstIP.toString())) |
| .matchTunnelId(Long.parseLong(srcVni.segmentationId())).build(); |
| |
| ExtensionTreatmentResolver resolver = hander |
| .behaviour(ExtensionTreatmentResolver.class); |
| ExtensionTreatment ethSrcToDst = resolver |
| .getExtensionInstruction(ExtensionTreatmentType.ExtensionTreatmentTypes |
| .NICIRA_MOV_ETH_SRC_TO_DST.type()); |
| ExtensionTreatment arpShaToTha = resolver |
| .getExtensionInstruction(ExtensionTreatmentType.ExtensionTreatmentTypes |
| .NICIRA_MOV_ARP_SHA_TO_THA.type()); |
| ExtensionTreatment arpSpaToTpa = resolver |
| .getExtensionInstruction(ExtensionTreatmentType.ExtensionTreatmentTypes |
| .NICIRA_MOV_ARP_SPA_TO_TPA.type()); |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .extension(ethSrcToDst, deviceId) |
| .setEthSrc(dstMac).setArpOp(ARP_RESPONSE) |
| .extension(arpShaToTha, deviceId) |
| .extension(arpSpaToTpa, deviceId) |
| .setArpSha(dstMac).setArpSpa(dstIP) |
| .setOutput(PortNumber.IN_PORT).build(); |
| |
| ForwardingObjective.Builder objective = DefaultForwardingObjective |
| .builder().withTreatment(treatment).withSelector(selector) |
| .fromApp(appId).withFlag(Flag.SPECIFIC) |
| .withPriority(ARP_PRIORITY); |
| |
| if (type.equals(Objective.Operation.ADD)) { |
| log.debug("PrivateArpRules-->ADD"); |
| flowObjectiveService.forward(deviceId, objective.add()); |
| } else { |
| log.debug("PrivateArpRules-->REMOVE"); |
| flowObjectiveService.forward(deviceId, objective.remove()); |
| } |
| } |
| } |