| /* |
| * Copyright 2016 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.routing.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.packet.EthType; |
| import org.onlab.packet.VlanId; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.onosproject.incubator.net.intf.Interface; |
| import org.onosproject.incubator.net.intf.InterfaceService; |
| import org.onosproject.net.ConnectPoint; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.PortNumber; |
| import org.onosproject.net.config.NetworkConfigEvent; |
| import org.onosproject.net.config.NetworkConfigListener; |
| import org.onosproject.net.config.NetworkConfigService; |
| import org.onosproject.net.device.DeviceEvent; |
| import org.onosproject.net.device.DeviceListener; |
| import org.onosproject.net.device.DeviceService; |
| 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.flowobjective.DefaultForwardingObjective; |
| import org.onosproject.net.flowobjective.DefaultNextObjective; |
| import org.onosproject.net.flowobjective.FlowObjectiveService; |
| import org.onosproject.net.flowobjective.ForwardingObjective; |
| import org.onosproject.net.flowobjective.NextObjective; |
| import org.onosproject.net.host.InterfaceIpAddress; |
| import org.onosproject.routing.RoutingService; |
| import org.onosproject.routing.config.RouterConfig; |
| import org.slf4j.Logger; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Manages connectivity between peers redirecting control traffic to a routing |
| * control plane available on the dataplane. |
| */ |
| @Component(immediate = true, enabled = false) |
| public class ControlPlaneRedirectManager { |
| |
| private final Logger log = getLogger(getClass()); |
| |
| private static final int PRIORITY = 40001; |
| private static final int OSPF_IP_PROTO = 0x59; |
| |
| private static final String APP_NAME = "org.onosproject.cpredirect"; |
| private ApplicationId appId; |
| |
| private ConnectPoint controlPlaneConnectPoint; |
| private boolean ospfEnabled = false; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected DeviceService deviceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected InterfaceService interfaceService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected FlowObjectiveService flowObjectiveService; |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected NetworkConfigService networkConfigService; |
| |
| private final InternalDeviceListener deviceListener = new InternalDeviceListener(); |
| private final InternalNetworkConfigListener networkConfigListener = |
| new InternalNetworkConfigListener(); |
| |
| @Activate |
| public void activate() { |
| this.appId = coreService.registerApplication(APP_NAME); |
| |
| deviceService.addListener(deviceListener); |
| networkConfigService.addListener(networkConfigListener); |
| |
| updateConfig(); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| deviceService.removeListener(deviceListener); |
| networkConfigService.removeListener(networkConfigListener); |
| } |
| |
| private void updateConfig() { |
| ApplicationId routingAppId = |
| coreService.registerApplication(RoutingService.ROUTER_APP_ID); |
| |
| RouterConfig config = networkConfigService.getConfig( |
| routingAppId, RoutingService.ROUTER_CONFIG_CLASS); |
| |
| if (config == null) { |
| log.warn("Router config not available"); |
| return; |
| } |
| |
| controlPlaneConnectPoint = config.getControlPlaneConnectPoint(); |
| ospfEnabled = config.getOspfEnabled(); |
| |
| updateDevice(); |
| } |
| |
| private void updateDevice() { |
| if (controlPlaneConnectPoint != null && |
| deviceService.isAvailable(controlPlaneConnectPoint.deviceId())) { |
| DeviceId deviceId = controlPlaneConnectPoint.deviceId(); |
| |
| interfaceService.getInterfaces().stream() |
| .filter(intf -> intf.connectPoint().deviceId().equals(deviceId)) |
| .forEach(this::provisionInterface); |
| |
| log.info("Set up interfaces on {}", controlPlaneConnectPoint.deviceId()); |
| } |
| } |
| |
| private void provisionInterface(Interface intf) { |
| addBasicInterfaceForwarding(intf); |
| updateOspfForwarding(intf); |
| } |
| |
| private void addBasicInterfaceForwarding(Interface intf) { |
| log.debug("Adding interface objectives for {}", intf); |
| |
| DeviceId deviceId = controlPlaneConnectPoint.deviceId(); |
| PortNumber controlPlanePort = controlPlaneConnectPoint.port(); |
| |
| for (InterfaceIpAddress ip : intf.ipAddresses()) { |
| // create nextObjectives for forwarding to this interface and the |
| // controlPlaneConnectPoint |
| int cpNextId, intfNextId; |
| if (intf.vlan() == VlanId.NONE) { |
| cpNextId = createNextObjective(deviceId, controlPlanePort, |
| VlanId.vlanId(SingleSwitchFibInstaller.ASSIGNED_VLAN), |
| true); |
| intfNextId = createNextObjective(deviceId, intf.connectPoint().port(), |
| VlanId.vlanId(SingleSwitchFibInstaller.ASSIGNED_VLAN), |
| true); |
| } else { |
| cpNextId = createNextObjective(deviceId, controlPlanePort, |
| intf.vlan(), false); |
| intfNextId = createNextObjective(deviceId, intf.connectPoint().port(), |
| intf.vlan(), false); |
| } |
| |
| // IPv4 to router |
| TrafficSelector toSelector = DefaultTrafficSelector.builder() |
| .matchInPort(intf.connectPoint().port()) |
| .matchEthDst(intf.mac()) |
| .matchEthType(EthType.EtherType.IPV4.ethType().toShort()) |
| .matchVlanId(intf.vlan()) |
| .matchIPDst(ip.ipAddress().toIpPrefix()) |
| .build(); |
| |
| flowObjectiveService.forward(deviceId, |
| buildForwardingObjective(toSelector, null, cpNextId, true)); |
| |
| // IPv4 from router |
| TrafficSelector fromSelector = DefaultTrafficSelector.builder() |
| .matchInPort(controlPlanePort) |
| .matchEthSrc(intf.mac()) |
| .matchVlanId(intf.vlan()) |
| .matchEthType(EthType.EtherType.IPV4.ethType().toShort()) |
| .matchIPSrc(ip.ipAddress().toIpPrefix()) |
| .build(); |
| |
| flowObjectiveService.forward(deviceId, |
| buildForwardingObjective(fromSelector, null, intfNextId, true)); |
| |
| // ARP to router |
| toSelector = DefaultTrafficSelector.builder() |
| .matchInPort(intf.connectPoint().port()) |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchVlanId(intf.vlan()) |
| .build(); |
| |
| TrafficTreatment puntTreatment = DefaultTrafficTreatment.builder() |
| .punt() |
| .build(); |
| |
| flowObjectiveService.forward(deviceId, |
| buildForwardingObjective(toSelector, puntTreatment, cpNextId, true)); |
| |
| // ARP from router |
| fromSelector = DefaultTrafficSelector.builder() |
| .matchInPort(controlPlanePort) |
| .matchEthSrc(intf.mac()) |
| .matchVlanId(intf.vlan()) |
| .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| .matchArpSpa(ip.ipAddress().getIp4Address()) |
| .build(); |
| |
| flowObjectiveService.forward(deviceId, |
| buildForwardingObjective(fromSelector, puntTreatment, intfNextId, true)); |
| } |
| } |
| |
| private void updateOspfForwarding(Interface intf) { |
| // OSPF to router |
| TrafficSelector toSelector = DefaultTrafficSelector.builder() |
| .matchInPort(intf.connectPoint().port()) |
| .matchEthType(EthType.EtherType.IPV4.ethType().toShort()) |
| .matchVlanId(intf.vlan()) |
| .matchIPProtocol((byte) OSPF_IP_PROTO) |
| .build(); |
| |
| // create nextObjectives for forwarding to the controlPlaneConnectPoint |
| DeviceId deviceId = controlPlaneConnectPoint.deviceId(); |
| PortNumber controlPlanePort = controlPlaneConnectPoint.port(); |
| int cpNextId; |
| if (intf.vlan() == VlanId.NONE) { |
| cpNextId = createNextObjective(deviceId, controlPlanePort, |
| VlanId.vlanId(SingleSwitchFibInstaller.ASSIGNED_VLAN), |
| true); |
| } else { |
| cpNextId = createNextObjective(deviceId, controlPlanePort, |
| intf.vlan(), false); |
| } |
| log.debug("ospf flows intf:{} nextid:{}", intf, cpNextId); |
| flowObjectiveService.forward(controlPlaneConnectPoint.deviceId(), |
| buildForwardingObjective(toSelector, null, cpNextId, ospfEnabled)); |
| } |
| |
| /** |
| * Creates a next objective for forwarding to a port. Handles metadata for |
| * some pipelines that require vlan information for egress port. |
| * |
| * @param deviceId the device on which the next objective is being created |
| * @param portNumber the egress port |
| * @param vlanId vlan information for egress port |
| * @param popVlan if vlan tag should be popped or not |
| * @return nextId of the next objective created |
| */ |
| private int createNextObjective(DeviceId deviceId, PortNumber portNumber, |
| VlanId vlanId, boolean popVlan) { |
| int nextId = flowObjectiveService.allocateNextId(); |
| NextObjective.Builder nextObjBuilder = DefaultNextObjective |
| .builder().withId(nextId) |
| .withType(NextObjective.Type.SIMPLE) |
| .fromApp(appId); |
| |
| TrafficTreatment.Builder ttBuilder = DefaultTrafficTreatment.builder(); |
| if (popVlan) { |
| ttBuilder.popVlan(); |
| } |
| ttBuilder.setOutput(portNumber); |
| |
| // setup metadata to pass to nextObjective - indicate the vlan on egress |
| // if needed by the switch pipeline. |
| TrafficSelector.Builder metabuilder = DefaultTrafficSelector.builder(); |
| metabuilder.matchVlanId(vlanId); |
| |
| nextObjBuilder.withMeta(metabuilder.build()); |
| nextObjBuilder.addTreatment(ttBuilder.build()); |
| log.debug("Submited next objective {} in device {} for port/vlan {}/{}", |
| nextId, deviceId, portNumber, vlanId); |
| flowObjectiveService.next(deviceId, nextObjBuilder.add()); |
| return nextId; |
| } |
| |
| /** |
| * Builds a forwarding objective from the given selector, treatment and nextId. |
| * |
| * @param selector selector |
| * @param treatment treatment to apply to packet, can be null |
| * @param nextId next objective to point to for forwarding packet |
| * @param add true to create an add objective, false to create a remove |
| * objective |
| * @return forwarding objective |
| */ |
| private ForwardingObjective buildForwardingObjective(TrafficSelector selector, |
| TrafficTreatment treatment, |
| int nextId, |
| boolean add) { |
| DefaultForwardingObjective.Builder fobBuilder = DefaultForwardingObjective.builder(); |
| fobBuilder.withSelector(selector); |
| if (treatment != null) { |
| fobBuilder.withTreatment(treatment); |
| } |
| if (nextId != -1) { |
| fobBuilder.nextStep(nextId); |
| } |
| fobBuilder.fromApp(appId) |
| .withPriority(PRIORITY) |
| .withFlag(ForwardingObjective.Flag.VERSATILE); |
| |
| return add ? fobBuilder.add() : fobBuilder.remove(); |
| } |
| |
| /** |
| * Listener for device events. |
| */ |
| private class InternalDeviceListener implements DeviceListener { |
| @Override |
| public void event(DeviceEvent event) { |
| if (controlPlaneConnectPoint != null && |
| event.subject().id().equals(controlPlaneConnectPoint.deviceId())) { |
| switch (event.type()) { |
| case DEVICE_ADDED: |
| case DEVICE_AVAILABILITY_CHANGED: |
| if (deviceService.isAvailable(event.subject().id())) { |
| log.info("Device connected {}", event.subject().id()); |
| updateDevice(); |
| } |
| |
| break; |
| case DEVICE_UPDATED: |
| case DEVICE_REMOVED: |
| case DEVICE_SUSPENDED: |
| case PORT_ADDED: |
| case PORT_UPDATED: |
| case PORT_REMOVED: |
| default: |
| break; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Listener for network config events. |
| */ |
| private class InternalNetworkConfigListener implements NetworkConfigListener { |
| @Override |
| public void event(NetworkConfigEvent event) { |
| if (event.configClass().equals(RoutingService.ROUTER_CONFIG_CLASS)) { |
| switch (event.type()) { |
| case CONFIG_ADDED: |
| case CONFIG_UPDATED: |
| updateConfig(); |
| break; |
| case CONFIG_REGISTERED: |
| case CONFIG_UNREGISTERED: |
| case CONFIG_REMOVED: |
| default: |
| break; |
| } |
| } |
| } |
| } |
| } |