| /* |
| * Copyright 2016-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.opencord.cordvtn.impl.handler; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.onlab.packet.Ethernet; |
| import org.onlab.packet.Ip4Address; |
| import org.onlab.packet.Ip4Prefix; |
| 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.instructions.ExtensionTreatment; |
| import org.opencord.cordvtn.impl.AbstractInstanceHandler; |
| import org.opencord.cordvtn.api.CordVtnNode; |
| import org.opencord.cordvtn.api.Instance; |
| import org.opencord.cordvtn.api.InstanceHandler; |
| import org.onosproject.xosclient.api.VtnService; |
| import org.opencord.cordvtn.impl.CordVtnNodeManager; |
| import org.opencord.cordvtn.impl.CordVtnPipeline; |
| |
| import java.util.Optional; |
| |
| import static org.onosproject.xosclient.api.VtnServiceApi.ServiceType.DEFAULT; |
| |
| /** |
| * Provides network connectivity for default service instances. |
| */ |
| @Component(immediate = true) |
| public class DefaultInstanceHandler extends AbstractInstanceHandler implements InstanceHandler { |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CordVtnPipeline pipeline; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CordVtnNodeManager nodeManager; |
| |
| @Activate |
| protected void activate() { |
| serviceType = Optional.of(DEFAULT); |
| super.activate(); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| super.deactivate(); |
| } |
| |
| @Override |
| public void instanceDetected(Instance instance) { |
| log.info("Instance is detected {}", instance); |
| |
| VtnService service = getVtnService(instance.serviceId()); |
| if (service == null) { |
| log.warn("Failed to get VtnService for {}", instance); |
| return; |
| } |
| defaultConnectionRules(instance, service, true); |
| } |
| |
| @Override |
| public void instanceRemoved(Instance instance) { |
| log.info("Instance is removed {}", instance); |
| |
| VtnService service = getVtnService(instance.serviceId()); |
| if (service == null) { |
| log.warn("Failed to get VtnService for {}", instance); |
| return; |
| } |
| defaultConnectionRules(instance, service, false); |
| } |
| |
| private void defaultConnectionRules(Instance instance, VtnService service, boolean install) { |
| long vni = service.vni(); |
| Ip4Prefix serviceIpRange = service.subnet().getIp4Prefix(); |
| |
| inPortRule(instance, install); |
| dstIpRule(instance, vni, install); |
| tunnelInRule(instance, vni, install); |
| |
| if (install) { |
| directAccessRule(serviceIpRange, serviceIpRange, true); |
| serviceIsolationRule(serviceIpRange, true); |
| } else if (getInstances(service.id()).isEmpty()) { |
| directAccessRule(serviceIpRange, serviceIpRange, false); |
| serviceIsolationRule(serviceIpRange, false); |
| } |
| } |
| |
| private void inPortRule(Instance instance, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchInPort(instance.portNumber()) |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPSrc(instance.ipAddress().toIpPrefix()) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .transition(CordVtnPipeline.TABLE_ACCESS) |
| .build(); |
| |
| FlowRule flowRule = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_DEFAULT) |
| .forDevice(instance.deviceId()) |
| .forTable(CordVtnPipeline.TABLE_IN_PORT) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRule); |
| |
| selector = DefaultTrafficSelector.builder() |
| .matchInPort(instance.portNumber()) |
| .build(); |
| |
| treatment = DefaultTrafficTreatment.builder() |
| .transition(CordVtnPipeline.TABLE_IN_SERVICE) |
| .build(); |
| |
| flowRule = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_LOW) |
| .forDevice(instance.deviceId()) |
| .forTable(CordVtnPipeline.TABLE_IN_PORT) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRule); |
| } |
| |
| private void dstIpRule(Instance instance, long vni, boolean install) { |
| Ip4Address tunnelIp = nodeManager.dataIp(instance.deviceId()).getIp4Address(); |
| |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(instance.ipAddress().toIpPrefix()) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setEthDst(instance.mac()) |
| .setOutput(instance.portNumber()) |
| .build(); |
| |
| FlowRule flowRule = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_DEFAULT) |
| .forDevice(instance.deviceId()) |
| .forTable(CordVtnPipeline.TABLE_DST) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRule); |
| |
| for (CordVtnNode node : nodeManager.completeNodes()) { |
| if (node.integrationBridgeId().equals(instance.deviceId())) { |
| continue; |
| } |
| |
| ExtensionTreatment tunnelDst = |
| pipeline.tunnelDstTreatment(node.integrationBridgeId(), tunnelIp); |
| if (tunnelDst == null) { |
| continue; |
| } |
| |
| treatment = DefaultTrafficTreatment.builder() |
| .setEthDst(instance.mac()) |
| .setTunnelId(vni) |
| .extension(tunnelDst, node.integrationBridgeId()) |
| .setOutput(nodeManager.tunnelPort(node.integrationBridgeId())) |
| .build(); |
| |
| flowRule = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_DEFAULT) |
| .forDevice(node.integrationBridgeId()) |
| .forTable(CordVtnPipeline.TABLE_DST) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRule); |
| } |
| } |
| |
| private void tunnelInRule(Instance instance, long vni, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchTunnelId(vni) |
| .matchEthDst(instance.mac()) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .setOutput(instance.portNumber()) |
| .build(); |
| |
| FlowRule flowRule = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_DEFAULT) |
| .forDevice(instance.deviceId()) |
| .forTable(CordVtnPipeline.TABLE_TUNNEL_IN) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRule); |
| } |
| |
| private void directAccessRule(Ip4Prefix srcRange, Ip4Prefix dstRange, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPSrc(srcRange) |
| .matchIPDst(dstRange) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .transition(CordVtnPipeline.TABLE_DST) |
| .build(); |
| |
| |
| nodeManager.completeNodes().stream().forEach(node -> { |
| FlowRule flowRuleDirect = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_DEFAULT) |
| .forDevice(node.integrationBridgeId()) |
| .forTable(CordVtnPipeline.TABLE_ACCESS) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRuleDirect); |
| }); |
| } |
| |
| private void serviceIsolationRule(Ip4Prefix dstRange, boolean install) { |
| TrafficSelector selector = DefaultTrafficSelector.builder() |
| .matchEthType(Ethernet.TYPE_IPV4) |
| .matchIPDst(dstRange) |
| .build(); |
| |
| TrafficTreatment treatment = DefaultTrafficTreatment.builder() |
| .drop() |
| .build(); |
| |
| nodeManager.completeNodes().stream().forEach(node -> { |
| FlowRule flowRuleDirect = DefaultFlowRule.builder() |
| .fromApp(appId) |
| .withSelector(selector) |
| .withTreatment(treatment) |
| .withPriority(CordVtnPipeline.PRIORITY_LOW) |
| .forDevice(node.integrationBridgeId()) |
| .forTable(CordVtnPipeline.TABLE_ACCESS) |
| .makePermanent() |
| .build(); |
| |
| pipeline.processFlowRule(install, flowRuleDirect); |
| }); |
| } |
| } |