| /* |
| * Copyright 2014 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.provider.of.link.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| 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.onosproject.net.DeviceId; |
| import org.onosproject.net.link.LinkProvider; |
| import org.onosproject.net.link.LinkProviderRegistry; |
| import org.onosproject.net.link.LinkProviderService; |
| import org.onosproject.net.provider.AbstractProvider; |
| import org.onosproject.net.provider.ProviderId; |
| import org.onosproject.openflow.controller.Dpid; |
| import org.onosproject.openflow.controller.OpenFlowController; |
| import org.onosproject.openflow.controller.OpenFlowPacketContext; |
| import org.onosproject.openflow.controller.OpenFlowSwitch; |
| import org.onosproject.openflow.controller.OpenFlowSwitchListener; |
| import org.onosproject.openflow.controller.PacketListener; |
| import org.onosproject.openflow.controller.RoleState; |
| import org.projectfloodlight.openflow.protocol.OFPortConfig; |
| import org.projectfloodlight.openflow.protocol.OFPortDesc; |
| import org.projectfloodlight.openflow.protocol.OFPortState; |
| import org.projectfloodlight.openflow.protocol.OFPortStatus; |
| import org.slf4j.Logger; |
| |
| |
| /** |
| * Provider which uses an OpenFlow controller to detect network |
| * infrastructure links. |
| */ |
| @Component(immediate = true) |
| @Deprecated |
| public class OpenFlowLinkProvider extends AbstractProvider implements LinkProvider { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected LinkProviderRegistry providerRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenFlowController controller; |
| |
| private LinkProviderService providerService; |
| |
| private final boolean useBDDP = true; |
| |
| private final InternalLinkProvider listener = new InternalLinkProvider(); |
| |
| protected final Map<Dpid, LinkDiscovery> discoverers = new ConcurrentHashMap<>(); |
| |
| /** |
| * Creates an OpenFlow link provider. |
| */ |
| public OpenFlowLinkProvider() { |
| super(new ProviderId("of", "org.onosproject.provider.openflow")); |
| } |
| |
| @Activate |
| public void activate() { |
| providerService = providerRegistry.register(this); |
| controller.addListener(listener); |
| controller.addPacketListener(0, listener); |
| for (OpenFlowSwitch sw : controller.getSwitches()) { |
| listener.switchAdded(new Dpid(sw.getId())); |
| } |
| log.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| for (LinkDiscovery ld : discoverers.values()) { |
| ld.stop(); |
| } |
| providerRegistry.unregister(this); |
| controller.removeListener(listener); |
| controller.removePacketListener(listener); |
| providerService = null; |
| |
| log.info("Stopped"); |
| } |
| |
| |
| private class InternalLinkProvider implements PacketListener, OpenFlowSwitchListener { |
| |
| |
| @Override |
| public void handlePacket(OpenFlowPacketContext pktCtx) { |
| LinkDiscovery ld = discoverers.get(pktCtx.dpid()); |
| if (ld == null) { |
| return; |
| } |
| if (ld.handleLLDP(pktCtx.unparsed(), pktCtx.inPort())) { |
| pktCtx.block(); |
| } |
| |
| } |
| |
| @Override |
| public void switchAdded(Dpid dpid) { |
| discoverers.put(dpid, new LinkDiscovery(controller.getSwitch(dpid), |
| controller, providerService, useBDDP)); |
| |
| } |
| |
| @Override |
| public void switchRemoved(Dpid dpid) { |
| LinkDiscovery ld = discoverers.remove(dpid); |
| if (ld != null) { |
| ld.removeAllPorts(); |
| } |
| providerService.linksVanished( |
| DeviceId.deviceId("of:" + Long.toHexString(dpid.value()))); |
| } |
| |
| |
| @Override |
| public void switchChanged(Dpid dpid) { |
| //might not need to do anything since DeviceManager is notified |
| } |
| |
| @Override |
| public void portChanged(Dpid dpid, OFPortStatus status) { |
| LinkDiscovery ld = discoverers.get(dpid); |
| if (ld == null) { |
| return; |
| } |
| final OFPortDesc port = status.getDesc(); |
| final boolean enabled = !port.getState().contains(OFPortState.LINK_DOWN) && |
| !port.getConfig().contains(OFPortConfig.PORT_DOWN); |
| if (enabled) { |
| ld.addPort(port); |
| } else { |
| /* |
| * remove port calls linkVanished |
| */ |
| ld.removePort(port); |
| } |
| |
| } |
| |
| @Override |
| public void receivedRoleReply(Dpid dpid, RoleState requested, |
| RoleState response) { |
| // do nothing for this. |
| } |
| |
| } |
| |
| } |