| /* |
| * 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.onosproject.patchpanel.impl; |
| |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.Service; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.onosproject.cli.net.ConnectPointCompleter; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.flow.DefaultFlowRule; |
| import org.onosproject.net.flow.FlowRuleService; |
| import org.onosproject.net.flow.FlowRule; |
| import org.onosproject.net.flow.DefaultTrafficSelector; |
| import org.onosproject.net.flow.DefaultTrafficTreatment; |
| import org.onosproject.net.packet.PacketPriority; |
| import org.onosproject.net.ConnectPoint; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * This class acts as a software patch panel application. |
| * The user specifies 2 connectpoint on the same device that he/she would like to patch. |
| * Using a flow rule, the 2 connectpoints are patched. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class PatchPanel implements PatchPanelService { |
| |
| // OSGI: help bundle plugin discover runtime package dependency. |
| @SuppressWarnings("unused") |
| private ConnectPointCompleter connectPointCompleter; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowRuleService flowRuleService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| private List<ConnectPoint> previous = new ArrayList<>(); |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| private ApplicationId appId; |
| private ConnectPoint cp1, cp2; |
| |
| |
| @Activate |
| protected void activate() throws NullPointerException { |
| appId = coreService.registerApplication("org.onosproject.patchpanel"); |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| protected void deactivate() { |
| log.info("Stopped"); |
| } |
| |
| @Override |
| public boolean addPatch(ConnectPoint num, ConnectPoint num2) { |
| cp1 = num; |
| cp2 = num2; |
| if ((cp1.port().equals(cp2.port())) || (previous.contains(cp1) || previous.contains(cp2))) { |
| log.info("One or both of these ports are already in use, NO FLOW"); |
| return false; |
| } else { |
| previous.add(cp1); |
| previous.add(cp2); |
| setFlowRuleService(); |
| return true; |
| } |
| } |
| |
| public void setFlowRuleService() { |
| PortNumber outPort = cp2.port(); |
| PortNumber inPort = cp1.port(); |
| FlowRule fr = DefaultFlowRule.builder() |
| .forDevice(cp1.deviceId()) |
| .withSelector(DefaultTrafficSelector.builder().matchInPort(inPort).build()) |
| .withTreatment(DefaultTrafficTreatment.builder().setOutput(outPort).build()) |
| .withPriority(PacketPriority.REACTIVE.priorityValue()) |
| .makePermanent() |
| .fromApp(appId).build(); |
| |
| FlowRule fr2 = DefaultFlowRule.builder() |
| .forDevice(cp1.deviceId()) |
| .withSelector(DefaultTrafficSelector.builder().matchInPort(outPort).build()) |
| .withTreatment(DefaultTrafficTreatment.builder().setOutput(inPort).build()) |
| .withPriority(PacketPriority.REACTIVE.priorityValue()) |
| .makePermanent() |
| .fromApp(appId).build(); |
| |
| flowRuleService.applyFlowRules(fr, fr2); |
| |
| } |
| |
| } |