| /* |
| * 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.onlab.onos.provider.of.device.impl; |
| |
| 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.onos.net.Device; |
| import org.onlab.onos.net.DeviceId; |
| import org.onlab.onos.net.MastershipRole; |
| import org.onlab.onos.net.Port; |
| import org.onlab.onos.net.PortNumber; |
| import org.onlab.onos.net.device.DefaultDeviceDescription; |
| import org.onlab.onos.net.device.DefaultPortDescription; |
| import org.onlab.onos.net.device.DeviceDescription; |
| import org.onlab.onos.net.device.DeviceProvider; |
| import org.onlab.onos.net.device.DeviceProviderRegistry; |
| import org.onlab.onos.net.device.DeviceProviderService; |
| import org.onlab.onos.net.device.PortDescription; |
| import org.onlab.onos.net.provider.AbstractProvider; |
| import org.onlab.onos.net.provider.ProviderId; |
| import org.onlab.onos.openflow.controller.Dpid; |
| import org.onlab.onos.openflow.controller.OpenFlowController; |
| import org.onlab.onos.openflow.controller.OpenFlowSwitch; |
| import org.onlab.onos.openflow.controller.OpenFlowSwitchListener; |
| import org.onlab.onos.openflow.controller.RoleState; |
| import org.onlab.onos.openflow.controller.driver.OpenFlowSwitchDriver; |
| import org.onlab.packet.ChassisId; |
| import org.projectfloodlight.openflow.protocol.OFFactory; |
| import org.projectfloodlight.openflow.protocol.OFPortConfig; |
| import org.projectfloodlight.openflow.protocol.OFPortDesc; |
| import org.projectfloodlight.openflow.protocol.OFPortFeatures; |
| import org.projectfloodlight.openflow.protocol.OFPortState; |
| import org.projectfloodlight.openflow.protocol.OFPortStatus; |
| import org.projectfloodlight.openflow.protocol.OFVersion; |
| import org.projectfloodlight.openflow.types.PortSpeed; |
| import org.slf4j.Logger; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import static org.onlab.onos.net.DeviceId.deviceId; |
| import static org.onlab.onos.net.Port.Type.COPPER; |
| import static org.onlab.onos.net.Port.Type.FIBER; |
| import static org.onlab.onos.openflow.controller.Dpid.dpid; |
| import static org.onlab.onos.openflow.controller.Dpid.uri; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Provider which uses an OpenFlow controller to detect network |
| * infrastructure devices. |
| */ |
| @Component(immediate = true) |
| public class OpenFlowDeviceProvider extends AbstractProvider implements DeviceProvider { |
| |
| private static final Logger LOG = getLogger(OpenFlowDeviceProvider.class); |
| private static final long MBPS = 1_000 * 1_000; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceProviderRegistry providerRegistry; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected OpenFlowController controller; |
| |
| private DeviceProviderService providerService; |
| |
| private final OpenFlowSwitchListener listener = new InternalDeviceProvider(); |
| |
| /** |
| * Creates an OpenFlow device provider. |
| */ |
| public OpenFlowDeviceProvider() { |
| super(new ProviderId("of", "org.onlab.onos.provider.openflow")); |
| } |
| |
| @Activate |
| public void activate() { |
| providerService = providerRegistry.register(this); |
| controller.addListener(listener); |
| for (OpenFlowSwitch sw : controller.getSwitches()) { |
| listener.switchAdded(new Dpid(sw.getId())); |
| } |
| LOG.info("Started"); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| for (OpenFlowSwitch sw : controller.getSwitches()) { |
| providerService.deviceDisconnected(DeviceId.deviceId(uri(sw.getId()))); |
| } |
| providerRegistry.unregister(this); |
| controller.removeListener(listener); |
| providerService = null; |
| |
| LOG.info("Stopped"); |
| } |
| |
| |
| @Override |
| public boolean isReachable(Device device) { |
| // FIXME if possible, we might want this to be part of |
| // OpenFlowSwitch interface so the driver interface isn't misused. |
| OpenFlowSwitch sw = controller.getSwitch(dpid(device.id().uri())); |
| if (sw == null || !((OpenFlowSwitchDriver) sw).isConnected()) { |
| return false; |
| } |
| return true; |
| //return checkChannel(device, sw); |
| } |
| |
| @Override |
| public void triggerProbe(Device device) { |
| LOG.info("Triggering probe on device {}", device.id()); |
| |
| OpenFlowSwitch sw = controller.getSwitch(dpid(device.id().uri())); |
| //if (!checkChannel(device, sw)) { |
| // LOG.error("Failed to probe device {} on sw={}", device, sw); |
| // providerService.deviceDisconnected(device.id()); |
| //return; |
| //} |
| |
| // Prompt an update of port information. We can use any XID for this. |
| OFFactory fact = sw.factory(); |
| switch (fact.getVersion()) { |
| case OF_10: |
| sw.sendMsg(fact.buildFeaturesRequest().setXid(0).build()); |
| break; |
| case OF_13: |
| sw.sendMsg(fact.buildPortDescStatsRequest().setXid(0).build()); |
| break; |
| default: |
| LOG.warn("Unhandled protocol version"); |
| } |
| } |
| |
| // Checks if the OF channel is connected. |
| //private boolean checkChannel(Device device, OpenFlowSwitch sw) { |
| // FIXME if possible, we might want this to be part of |
| // OpenFlowSwitch interface so the driver interface isn't misused. |
| // if (sw == null || !((OpenFlowSwitchDriver) sw).isConnected()) { |
| // return false; |
| // } |
| // return true; |
| // } |
| |
| @Override |
| public void roleChanged(Device device, MastershipRole newRole) { |
| switch (newRole) { |
| case MASTER: |
| controller.setRole(dpid(device.id().uri()), RoleState.MASTER); |
| break; |
| case STANDBY: |
| controller.setRole(dpid(device.id().uri()), RoleState.EQUAL); |
| break; |
| case NONE: |
| controller.setRole(dpid(device.id().uri()), RoleState.SLAVE); |
| break; |
| default: |
| LOG.error("Unknown Mastership state : {}", newRole); |
| |
| } |
| LOG.info("Accepting mastership role change for device {}", device.id()); |
| } |
| |
| private class InternalDeviceProvider implements OpenFlowSwitchListener { |
| @Override |
| public void switchAdded(Dpid dpid) { |
| if (providerService == null) { |
| return; |
| } |
| DeviceId did = deviceId(uri(dpid)); |
| OpenFlowSwitch sw = controller.getSwitch(dpid); |
| |
| Device.Type deviceType = sw.isOptical() ? Device.Type.ROADM : |
| Device.Type.SWITCH; |
| ChassisId cId = new ChassisId(dpid.value()); |
| DeviceDescription description = |
| new DefaultDeviceDescription(did.uri(), deviceType, |
| sw.manfacturerDescription(), |
| sw.hardwareDescription(), |
| sw.softwareDescription(), |
| sw.serialNumber(), |
| cId); |
| providerService.deviceConnected(did, description); |
| providerService.updatePorts(did, buildPortDescriptions(sw.getPorts())); |
| } |
| |
| @Override |
| public void switchRemoved(Dpid dpid) { |
| if (providerService == null) { |
| return; |
| } |
| providerService.deviceDisconnected(deviceId(uri(dpid))); |
| } |
| |
| |
| @Override |
| public void switchChanged(Dpid dpid) { |
| if (providerService == null) { |
| return; |
| } |
| DeviceId did = deviceId(uri(dpid)); |
| OpenFlowSwitch sw = controller.getSwitch(dpid); |
| providerService.updatePorts(did, buildPortDescriptions(sw.getPorts())); |
| } |
| |
| @Override |
| public void portChanged(Dpid dpid, OFPortStatus status) { |
| PortDescription portDescription = buildPortDescription(status.getDesc()); |
| providerService.portStatusChanged(deviceId(uri(dpid)), portDescription); |
| } |
| |
| @Override |
| public void roleAssertFailed(Dpid dpid, RoleState role) { |
| MastershipRole failed; |
| switch (role) { |
| case MASTER: |
| failed = MastershipRole.MASTER; |
| break; |
| case EQUAL: |
| failed = MastershipRole.STANDBY; |
| break; |
| case SLAVE: |
| failed = MastershipRole.NONE; |
| break; |
| default: |
| LOG.warn("unknown role {}", role); |
| return; |
| } |
| providerService.unableToAssertRole(deviceId(uri(dpid)), failed); |
| } |
| |
| /** |
| * Builds a list of port descriptions for a given list of ports. |
| * |
| * @param ports the list of ports |
| * @return list of portdescriptions |
| */ |
| private List<PortDescription> buildPortDescriptions(List<OFPortDesc> ports) { |
| final List<PortDescription> portDescs = new ArrayList<>(ports.size()); |
| for (OFPortDesc port : ports) { |
| portDescs.add(buildPortDescription(port)); |
| } |
| return portDescs; |
| } |
| |
| /** |
| * Build a portDescription from a given port. |
| * |
| * @param port the port to build from. |
| * @return portDescription for the port. |
| */ |
| private PortDescription buildPortDescription(OFPortDesc port) { |
| PortNumber portNo = PortNumber.portNumber(port.getPortNo().getPortNumber()); |
| boolean enabled = |
| !port.getState().contains(OFPortState.LINK_DOWN) && |
| !port.getConfig().contains(OFPortConfig.PORT_DOWN); |
| Port.Type type = port.getCurr().contains(OFPortFeatures.PF_FIBER) ? FIBER : COPPER; |
| return new DefaultPortDescription(portNo, enabled, type, portSpeed(port)); |
| } |
| |
| private long portSpeed(OFPortDesc port) { |
| if (port.getVersion() == OFVersion.OF_13) { |
| return port.getCurrSpeed() / MBPS; |
| } |
| |
| PortSpeed portSpeed = PortSpeed.SPEED_NONE; |
| for (OFPortFeatures feat : port.getCurr()) { |
| portSpeed = PortSpeed.max(portSpeed, feat.getPortSpeed()); |
| } |
| return portSpeed.getSpeedBps() / MBPS; |
| } |
| } |
| |
| } |