Jonathan Hart | 6344f57 | 2015-12-15 08:26:25 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.routing.impl; |
| 18 | |
| 19 | import org.apache.felix.scr.annotations.Activate; |
| 20 | import org.apache.felix.scr.annotations.Component; |
| 21 | import org.apache.felix.scr.annotations.Deactivate; |
| 22 | import org.apache.felix.scr.annotations.Reference; |
| 23 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 24 | import org.onlab.packet.EthType; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.core.CoreService; |
| 27 | import org.onosproject.incubator.net.intf.Interface; |
| 28 | import org.onosproject.incubator.net.intf.InterfaceService; |
| 29 | import org.onosproject.net.ConnectPoint; |
| 30 | import org.onosproject.net.DeviceId; |
| 31 | import org.onosproject.net.PortNumber; |
| 32 | import org.onosproject.net.config.NetworkConfigEvent; |
| 33 | import org.onosproject.net.config.NetworkConfigListener; |
| 34 | import org.onosproject.net.config.NetworkConfigService; |
| 35 | import org.onosproject.net.device.DeviceEvent; |
| 36 | import org.onosproject.net.device.DeviceListener; |
| 37 | import org.onosproject.net.device.DeviceService; |
| 38 | import org.onosproject.net.flow.DefaultTrafficSelector; |
| 39 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
| 40 | import org.onosproject.net.flow.TrafficSelector; |
| 41 | import org.onosproject.net.flow.TrafficTreatment; |
| 42 | import org.onosproject.net.flowobjective.DefaultForwardingObjective; |
| 43 | import org.onosproject.net.flowobjective.FlowObjectiveService; |
| 44 | import org.onosproject.net.flowobjective.ForwardingObjective; |
| 45 | import org.onosproject.net.host.InterfaceIpAddress; |
| 46 | import org.onosproject.routing.RoutingService; |
| 47 | import org.onosproject.routing.config.RouterConfig; |
| 48 | import org.slf4j.Logger; |
| 49 | |
| 50 | import static org.slf4j.LoggerFactory.getLogger; |
| 51 | |
| 52 | /** |
| 53 | * Manages connectivity between peers redirecting control traffic to a routing |
| 54 | * control plane available on the dataplane. |
| 55 | */ |
| 56 | @Component(immediate = true, enabled = false) |
| 57 | public class ControlPlaneRedirectManager { |
| 58 | |
| 59 | private final Logger log = getLogger(getClass()); |
| 60 | |
| 61 | private static final int PRIORITY = 40001; |
| 62 | |
| 63 | private static final String APP_NAME = "org.onosproject.cpredirect"; |
| 64 | private ApplicationId appId; |
| 65 | |
| 66 | private ConnectPoint controlPlaneConnectPoint; |
| 67 | |
| 68 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 69 | protected CoreService coreService; |
| 70 | |
| 71 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 72 | protected DeviceService deviceService; |
| 73 | |
| 74 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 75 | protected InterfaceService interfaceService; |
| 76 | |
| 77 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 78 | protected FlowObjectiveService flowObjectiveService; |
| 79 | |
| 80 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 81 | protected NetworkConfigService networkConfigService; |
| 82 | |
| 83 | private final InternalDeviceListener deviceListener = new InternalDeviceListener(); |
| 84 | private final InternalNetworkConfigListener networkConfigListener = |
| 85 | new InternalNetworkConfigListener(); |
| 86 | |
| 87 | @Activate |
| 88 | public void activate() { |
| 89 | this.appId = coreService.registerApplication(APP_NAME); |
| 90 | |
| 91 | deviceService.addListener(deviceListener); |
| 92 | networkConfigService.addListener(networkConfigListener); |
| 93 | |
| 94 | updateConfig(); |
| 95 | } |
| 96 | |
| 97 | @Deactivate |
| 98 | public void deactivate() { |
| 99 | deviceService.removeListener(deviceListener); |
| 100 | networkConfigService.removeListener(networkConfigListener); |
| 101 | } |
| 102 | |
| 103 | private void updateConfig() { |
| 104 | ApplicationId routingAppId = |
| 105 | coreService.registerApplication(RoutingService.ROUTER_APP_ID); |
| 106 | |
| 107 | RouterConfig config = networkConfigService.getConfig( |
| 108 | routingAppId, RoutingService.ROUTER_CONFIG_CLASS); |
| 109 | |
| 110 | if (config == null) { |
| 111 | log.info("Router config not available"); |
| 112 | return; |
| 113 | } |
| 114 | |
| 115 | if (!config.getControlPlaneConnectPoint().equals(controlPlaneConnectPoint)) { |
| 116 | this.controlPlaneConnectPoint = config.getControlPlaneConnectPoint(); |
| 117 | } |
| 118 | |
| 119 | if (controlPlaneConnectPoint != null && |
| 120 | deviceService.isAvailable(controlPlaneConnectPoint.deviceId())) { |
| 121 | notifySwitchAvailable(); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | private void notifySwitchAvailable() { |
| 126 | DeviceId deviceId = controlPlaneConnectPoint.deviceId(); |
| 127 | |
| 128 | interfaceService.getInterfaces().stream() |
| 129 | .filter(intf -> intf.connectPoint().deviceId().equals(deviceId)) |
| 130 | .forEach(this::addInterfaceForwarding); |
| 131 | |
| 132 | log.info("Sent interface objectives to {}", controlPlaneConnectPoint.deviceId()); |
| 133 | } |
| 134 | |
| 135 | private void addInterfaceForwarding(Interface intf) { |
| 136 | log.debug("Adding interface objectives for {}", intf); |
| 137 | |
| 138 | DeviceId deviceId = controlPlaneConnectPoint.deviceId(); |
| 139 | PortNumber controlPlanePort = controlPlaneConnectPoint.port(); |
| 140 | |
| 141 | for (InterfaceIpAddress ip : intf.ipAddresses()) { |
| 142 | // IPv4 to router |
| 143 | TrafficSelector toSelector = DefaultTrafficSelector.builder() |
| 144 | .matchInPort(intf.connectPoint().port()) |
| 145 | .matchEthDst(intf.mac()) |
| 146 | .matchEthType(EthType.EtherType.IPV4.ethType().toShort()) |
| 147 | .matchVlanId(intf.vlan()) |
| 148 | .matchIPDst(ip.ipAddress().toIpPrefix()) |
| 149 | .build(); |
| 150 | |
| 151 | TrafficTreatment toTreatment = DefaultTrafficTreatment.builder() |
| 152 | .setOutput(controlPlanePort) |
| 153 | .build(); |
| 154 | |
| 155 | flowObjectiveService.forward(deviceId, |
| 156 | buildForwardingObjective(toSelector, toTreatment)); |
| 157 | |
| 158 | // IPv4 from router |
| 159 | TrafficSelector fromSelector = DefaultTrafficSelector.builder() |
| 160 | .matchInPort(controlPlanePort) |
| 161 | .matchEthSrc(intf.mac()) |
| 162 | .matchVlanId(intf.vlan()) |
| 163 | .matchEthType(EthType.EtherType.IPV4.ethType().toShort()) |
| 164 | .matchIPSrc(ip.ipAddress().toIpPrefix()) |
| 165 | .build(); |
| 166 | |
| 167 | TrafficTreatment intfTreatment = DefaultTrafficTreatment.builder() |
| 168 | .setOutput(intf.connectPoint().port()) |
| 169 | .build(); |
| 170 | |
| 171 | flowObjectiveService.forward(deviceId, |
| 172 | buildForwardingObjective(fromSelector, intfTreatment)); |
| 173 | |
| 174 | |
| 175 | // ARP to router |
| 176 | toSelector = DefaultTrafficSelector.builder() |
| 177 | .matchInPort(intf.connectPoint().port()) |
| 178 | .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| 179 | .matchVlanId(intf.vlan()) |
| 180 | .build(); |
| 181 | |
| 182 | toTreatment = DefaultTrafficTreatment.builder() |
| 183 | .setOutput(controlPlanePort) |
| 184 | .punt() |
| 185 | .build(); |
| 186 | |
| 187 | flowObjectiveService.forward(deviceId, |
| 188 | buildForwardingObjective(toSelector, toTreatment)); |
| 189 | |
| 190 | // ARP from router |
| 191 | fromSelector = DefaultTrafficSelector.builder() |
| 192 | .matchInPort(controlPlanePort) |
| 193 | .matchEthSrc(intf.mac()) |
| 194 | .matchVlanId(intf.vlan()) |
| 195 | .matchEthType(EthType.EtherType.ARP.ethType().toShort()) |
| 196 | .build(); |
| 197 | |
| 198 | intfTreatment = DefaultTrafficTreatment.builder() |
| 199 | .setOutput(intf.connectPoint().port()) |
| 200 | .punt() |
| 201 | .build(); |
| 202 | |
| 203 | flowObjectiveService.forward(deviceId, |
| 204 | buildForwardingObjective(fromSelector, intfTreatment)); |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | private ForwardingObjective buildForwardingObjective(TrafficSelector selector, |
| 209 | TrafficTreatment treatment) { |
| 210 | |
| 211 | return DefaultForwardingObjective.builder() |
| 212 | .withSelector(selector) |
| 213 | .withTreatment(treatment) |
| 214 | .fromApp(appId) |
| 215 | .withPriority(PRIORITY) |
| 216 | .withFlag(ForwardingObjective.Flag.VERSATILE) |
| 217 | .add(); |
| 218 | } |
| 219 | |
| 220 | private class InternalDeviceListener implements DeviceListener { |
| 221 | @Override |
| 222 | public void event(DeviceEvent event) { |
| 223 | if (controlPlaneConnectPoint != null && |
| 224 | event.subject().id().equals(controlPlaneConnectPoint.deviceId())) { |
| 225 | switch (event.type()) { |
| 226 | case DEVICE_ADDED: |
| 227 | case DEVICE_AVAILABILITY_CHANGED: |
| 228 | if (deviceService.isAvailable(event.subject().id())) { |
| 229 | log.info("Device connected {}", event.subject().id()); |
| 230 | notifySwitchAvailable(); |
| 231 | } |
| 232 | |
| 233 | break; |
| 234 | case DEVICE_UPDATED: |
| 235 | case DEVICE_REMOVED: |
| 236 | case DEVICE_SUSPENDED: |
| 237 | case PORT_ADDED: |
| 238 | case PORT_UPDATED: |
| 239 | case PORT_REMOVED: |
| 240 | default: |
| 241 | break; |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | private class InternalNetworkConfigListener implements NetworkConfigListener { |
| 248 | @Override |
| 249 | public void event(NetworkConfigEvent event) { |
| 250 | if (event.subject().equals(RoutingService.ROUTER_CONFIG_CLASS)) { |
| 251 | switch (event.type()) { |
| 252 | case CONFIG_ADDED: |
| 253 | case CONFIG_UPDATED: |
| 254 | updateConfig(); |
| 255 | break; |
| 256 | case CONFIG_REGISTERED: |
| 257 | case CONFIG_UNREGISTERED: |
| 258 | case CONFIG_REMOVED: |
| 259 | default: |
| 260 | break; |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | } |
| 265 | } |