Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 1 | /* |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 2 | * Copyright 2017-present Open Networking Foundation |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 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 | */ |
alshabib | 6d52745 | 2016-06-01 18:00:47 -0700 | [diff] [blame] | 16 | package org.opencord.aaa; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 17 | |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 18 | import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY; |
| 19 | import static org.slf4j.LoggerFactory.getLogger; |
| 20 | |
| 21 | import java.net.InetAddress; |
| 22 | import java.nio.ByteBuffer; |
| 23 | import java.util.Map; |
| 24 | |
Jonathan Hart | 932bedc | 2018-07-12 13:46:09 -0700 | [diff] [blame] | 25 | import org.apache.commons.lang3.builder.ToStringBuilder; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 26 | import org.apache.felix.scr.annotations.Component; |
| 27 | import org.apache.felix.scr.annotations.Deactivate; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 28 | import org.apache.felix.scr.annotations.Reference; |
| 29 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 30 | import org.apache.felix.scr.annotations.Service; |
Jonathan Hart | 4731dd9 | 2018-05-02 17:30:05 -0700 | [diff] [blame] | 31 | import org.onlab.packet.DeserializationException; |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 32 | import org.onlab.packet.EAP; |
| 33 | import org.onlab.packet.EAPOL; |
| 34 | import org.onlab.packet.EthType; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 35 | import org.onlab.packet.Ethernet; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 36 | import org.onlab.packet.MacAddress; |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 37 | import org.onlab.packet.RADIUS; |
| 38 | import org.onlab.packet.RADIUSAttribute; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 39 | import org.onosproject.core.ApplicationId; |
| 40 | import org.onosproject.core.CoreService; |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 41 | import org.onosproject.event.AbstractListenerManager; |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 42 | import org.onosproject.mastership.MastershipService; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 43 | import org.onosproject.net.ConnectPoint; |
| 44 | import org.onosproject.net.DeviceId; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 45 | import org.onosproject.net.PortNumber; |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 46 | import org.onosproject.net.config.ConfigFactory; |
| 47 | import org.onosproject.net.config.NetworkConfigEvent; |
| 48 | import org.onosproject.net.config.NetworkConfigListener; |
| 49 | import org.onosproject.net.config.NetworkConfigRegistry; |
Amit Ghosh | f739be5 | 2017-09-21 15:49:37 +0100 | [diff] [blame] | 50 | import org.onosproject.net.device.DeviceEvent; |
| 51 | import org.onosproject.net.device.DeviceListener; |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 52 | import org.onosproject.net.device.DeviceService; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 53 | import org.onosproject.net.flow.DefaultTrafficTreatment; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 54 | import org.onosproject.net.flow.TrafficTreatment; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 55 | import org.onosproject.net.packet.DefaultOutboundPacket; |
| 56 | import org.onosproject.net.packet.InboundPacket; |
| 57 | import org.onosproject.net.packet.OutboundPacket; |
| 58 | import org.onosproject.net.packet.PacketContext; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 59 | import org.onosproject.net.packet.PacketProcessor; |
| 60 | import org.onosproject.net.packet.PacketService; |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 61 | import org.opencord.sadis.SubscriberAndDeviceInformationService; |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 62 | import org.osgi.service.component.annotations.Activate; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 63 | import org.slf4j.Logger; |
| 64 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 65 | /** |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 66 | * AAA application for ONOS. |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 67 | */ |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 68 | @Service |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 69 | @Component(immediate = true) |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 70 | public class AaaManager |
| 71 | extends AbstractListenerManager<AuthenticationEvent, AuthenticationEventListener> |
| 72 | implements AuthenticationService { |
| 73 | |
Charles Chan | df7ff86 | 2017-01-20 11:22:05 -0800 | [diff] [blame] | 74 | private static final String APP_NAME = "org.opencord.aaa"; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 75 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 76 | private final Logger log = getLogger(getClass()); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 77 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | protected CoreService coreService; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 80 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected PacketService packetService; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 83 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 85 | protected NetworkConfigRegistry netCfgService; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 86 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 87 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 88 | protected DeviceService deviceService; |
| 89 | |
| 90 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 91 | protected SubscriberAndDeviceInformationService subsService; |
| 92 | |
| 93 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 94 | protected MastershipService mastershipService; |
| 95 | |
Amit Ghosh | f739be5 | 2017-09-21 15:49:37 +0100 | [diff] [blame] | 96 | private final DeviceListener deviceListener = new InternalDeviceListener(); |
| 97 | |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 98 | // NAS IP address |
| 99 | protected InetAddress nasIpAddress; |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 100 | |
| 101 | // self MAC address |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 102 | protected String nasMacAddress; |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 103 | |
| 104 | // Parsed RADIUS server addresses |
| 105 | protected InetAddress radiusIpAddress; |
| 106 | |
| 107 | // MAC address of RADIUS server or net hop router |
| 108 | protected String radiusMacAddress; |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 109 | |
| 110 | // RADIUS server secret |
| 111 | protected String radiusSecret; |
| 112 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 113 | // bindings |
| 114 | protected CustomizationInfo customInfo; |
Ray Milkey | 5d99bd1 | 2015-10-06 15:41:30 -0700 | [diff] [blame] | 115 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 116 | // our application-specific event handler |
| 117 | private ReactivePacketProcessor processor = new ReactivePacketProcessor(); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 118 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 119 | // our unique identifier |
| 120 | private ApplicationId appId; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 121 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 122 | // Setup specific customization/attributes on the RADIUS packets |
| 123 | PacketCustomizer pktCustomizer; |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 124 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 125 | // packet customizer to use |
| 126 | private String customizer; |
| 127 | |
| 128 | // Type of connection to use to communicate with Radius server, options are |
| 129 | // "socket" or "packet_out" |
| 130 | private String radiusConnectionType; |
| 131 | |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 132 | // Object for the specific type of communication with the RADIUS |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 133 | // server, socket based or packet_out based |
| 134 | RadiusCommunicator impl = null; |
| 135 | |
| 136 | // latest configuration |
| 137 | AaaConfig newCfg; |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 138 | |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 139 | // Configuration properties factory |
| 140 | private final ConfigFactory factory = |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 141 | new ConfigFactory<ApplicationId, AaaConfig>(APP_SUBJECT_FACTORY, |
| 142 | AaaConfig.class, |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 143 | "AAA") { |
| 144 | @Override |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 145 | public AaaConfig createConfig() { |
| 146 | return new AaaConfig(); |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 147 | } |
| 148 | }; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 149 | |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 150 | // Listener for config changes |
| 151 | private final InternalConfigListener cfgListener = new InternalConfigListener(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 152 | |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 153 | private StateMachineDelegate delegate = new InternalStateMachineDelegate(); |
| 154 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 155 | /** |
| 156 | * Builds an EAPOL packet based on the given parameters. |
| 157 | * |
| 158 | * @param dstMac destination MAC address |
| 159 | * @param srcMac source MAC address |
| 160 | * @param vlan vlan identifier |
| 161 | * @param eapolType EAPOL type |
| 162 | * @param eap EAP payload |
| 163 | * @return Ethernet frame |
| 164 | */ |
| 165 | private static Ethernet buildEapolResponse(MacAddress dstMac, MacAddress srcMac, |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 166 | short vlan, byte eapolType, EAP eap, byte priorityCode) { |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 167 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 168 | Ethernet eth = new Ethernet(); |
| 169 | eth.setDestinationMACAddress(dstMac.toBytes()); |
| 170 | eth.setSourceMACAddress(srcMac.toBytes()); |
| 171 | eth.setEtherType(EthType.EtherType.EAPOL.ethType().toShort()); |
| 172 | if (vlan != Ethernet.VLAN_UNTAGGED) { |
| 173 | eth.setVlanID(vlan); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 174 | eth.setPriorityCode(priorityCode); |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 175 | } |
| 176 | //eapol header |
| 177 | EAPOL eapol = new EAPOL(); |
| 178 | eapol.setEapolType(eapolType); |
| 179 | eapol.setPacketLength(eap.getLength()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 180 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 181 | //eap part |
| 182 | eapol.setPayload(eap); |
| 183 | |
| 184 | eth.setPayload(eapol); |
| 185 | eth.setPad(true); |
| 186 | return eth; |
| 187 | } |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 188 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 189 | @Activate |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 190 | public void activate() { |
Charles Chan | df7ff86 | 2017-01-20 11:22:05 -0800 | [diff] [blame] | 191 | appId = coreService.registerApplication(APP_NAME); |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 192 | eventDispatcher.addSink(AuthenticationEvent.class, listenerRegistry); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 193 | netCfgService.addListener(cfgListener); |
| 194 | netCfgService.registerConfigFactory(factory); |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 195 | customInfo = new CustomizationInfo(subsService, deviceService); |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 196 | cfgListener.reconfigureNetwork(netCfgService.getConfig(appId, AaaConfig.class)); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 197 | log.info("Starting with config {} {}", this, newCfg); |
| 198 | |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 199 | configureRadiusCommunication(); |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 200 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 201 | // register our event handler |
Brian O'Connor | d9c7da0 | 2015-07-29 17:49:24 -0700 | [diff] [blame] | 202 | packetService.addProcessor(processor, PacketProcessor.director(2)); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 203 | |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 204 | |
| 205 | StateMachine.initializeMaps(); |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 206 | StateMachine.setDelegate(delegate); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 207 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 208 | impl.initializeLocalState(newCfg); |
alshabib | 27afc1d | 2016-12-23 00:33:58 -0800 | [diff] [blame] | 209 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 210 | impl.requestIntercepts(); |
| 211 | |
Amit Ghosh | f739be5 | 2017-09-21 15:49:37 +0100 | [diff] [blame] | 212 | deviceService.addListener(deviceListener); |
| 213 | |
Jian Li | 13c6716 | 2015-12-09 13:20:34 -0800 | [diff] [blame] | 214 | log.info("Started"); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 215 | } |
| 216 | |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 217 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 218 | @Deactivate |
| 219 | public void deactivate() { |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 220 | impl.withdrawIntercepts(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 221 | packetService.removeProcessor(processor); |
Deepa Vaddireddy | b9c24c6 | 2017-09-21 13:45:30 +0530 | [diff] [blame] | 222 | netCfgService.removeListener(cfgListener); |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 223 | StateMachine.unsetDelegate(delegate); |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 224 | StateMachine.destroyMaps(); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 225 | impl.deactivate(); |
Amit Ghosh | f739be5 | 2017-09-21 15:49:37 +0100 | [diff] [blame] | 226 | deviceService.removeListener(deviceListener); |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 227 | eventDispatcher.removeSink(AuthenticationEvent.class); |
Jian Li | 13c6716 | 2015-12-09 13:20:34 -0800 | [diff] [blame] | 228 | log.info("Stopped"); |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 229 | } |
| 230 | |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 231 | private void configureRadiusCommunication() { |
| 232 | if (radiusConnectionType.toLowerCase().equals("socket")) { |
| 233 | impl = new SocketBasedRadiusCommunicator(appId, packetService, this); |
| 234 | } else { |
| 235 | impl = new PortBasedRadiusCommunicator(appId, packetService, mastershipService, |
| 236 | deviceService, subsService, pktCustomizer, this); |
| 237 | } |
| 238 | } |
| 239 | |
| 240 | private void configurePacketCustomizer() { |
| 241 | switch (customizer.toLowerCase()) { |
| 242 | case "sample": |
| 243 | pktCustomizer = new SamplePacketCustomizer(customInfo); |
| 244 | log.info("Created SamplePacketCustomizer"); |
| 245 | break; |
| 246 | default: |
| 247 | pktCustomizer = new PacketCustomizer(customInfo); |
| 248 | log.info("Created default PacketCustomizer"); |
| 249 | break; |
| 250 | } |
| 251 | } |
| 252 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 253 | /** |
| 254 | * Send RADIUS packet to the RADIUS server. |
| 255 | * |
| 256 | * @param radiusPacket RADIUS packet to be sent to server. |
| 257 | * @param inPkt Incoming EAPOL packet |
| 258 | */ |
| 259 | protected void sendRadiusPacket(RADIUS radiusPacket, InboundPacket inPkt) { |
| 260 | impl.sendRadiusPacket(radiusPacket, inPkt); |
| 261 | } |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 262 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 263 | /** |
| 264 | * Handles RADIUS packets. |
| 265 | * |
| 266 | * @param radiusPacket RADIUS packet coming from the RADIUS server. |
| 267 | * @throws StateMachineException if an illegal state transition is triggered |
Jonathan Hart | 4731dd9 | 2018-05-02 17:30:05 -0700 | [diff] [blame] | 268 | * @throws DeserializationException if packet deserialization fails |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 269 | */ |
Jonathan Hart | 4731dd9 | 2018-05-02 17:30:05 -0700 | [diff] [blame] | 270 | public void handleRadiusPacket(RADIUS radiusPacket) |
| 271 | throws StateMachineException, DeserializationException { |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 272 | if (log.isTraceEnabled()) { |
| 273 | log.trace("Received RADIUS packet {}", radiusPacket); |
| 274 | } |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 275 | StateMachine stateMachine = StateMachine.lookupStateMachineById(radiusPacket.getIdentifier()); |
| 276 | if (stateMachine == null) { |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 277 | log.error("Invalid packet identifier {}, could not find corresponding " |
| 278 | + "state machine ... exiting", radiusPacket.getIdentifier()); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 279 | return; |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 280 | } |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 281 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 282 | EAP eapPayload; |
| 283 | Ethernet eth; |
Aaron Kruglikov | d39d99e | 2015-07-03 13:30:57 -0700 | [diff] [blame] | 284 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 285 | switch (radiusPacket.getCode()) { |
| 286 | case RADIUS.RADIUS_CODE_ACCESS_CHALLENGE: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 287 | log.debug("RADIUS packet: RADIUS_CODE_ACCESS_CHALLENGE"); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 288 | RADIUSAttribute radiusAttrState = radiusPacket.getAttribute(RADIUSAttribute.RADIUS_ATTR_STATE); |
| 289 | byte[] challengeState = null; |
| 290 | if (radiusAttrState != null) { |
| 291 | challengeState = radiusAttrState.getValue(); |
| 292 | } |
| 293 | eapPayload = radiusPacket.decapsulateMessage(); |
| 294 | stateMachine.setChallengeInfo(eapPayload.getIdentifier(), challengeState); |
| 295 | eth = buildEapolResponse(stateMachine.supplicantAddress(), |
| 296 | MacAddress.valueOf(nasMacAddress), |
| 297 | stateMachine.vlanId(), |
| 298 | EAPOL.EAPOL_PACKET, |
| 299 | eapPayload, stateMachine.priorityCode()); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 300 | log.debug("Send EAP challenge response to supplicant {}", stateMachine.supplicantAddress().toString()); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 301 | sendPacketToSupplicant(eth, stateMachine.supplicantConnectpoint()); |
| 302 | break; |
| 303 | case RADIUS.RADIUS_CODE_ACCESS_ACCEPT: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 304 | log.debug("RADIUS packet: RADIUS_CODE_ACCESS_ACCEPT"); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 305 | //send an EAPOL - Success to the supplicant. |
| 306 | byte[] eapMessageSuccess = |
| 307 | radiusPacket.getAttribute(RADIUSAttribute.RADIUS_ATTR_EAP_MESSAGE).getValue(); |
Jonathan Hart | 4731dd9 | 2018-05-02 17:30:05 -0700 | [diff] [blame] | 308 | eapPayload = EAP.deserializer().deserialize( |
| 309 | eapMessageSuccess, 0, eapMessageSuccess.length); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 310 | eth = buildEapolResponse(stateMachine.supplicantAddress(), |
| 311 | MacAddress.valueOf(nasMacAddress), |
| 312 | stateMachine.vlanId(), |
| 313 | EAPOL.EAPOL_PACKET, |
| 314 | eapPayload, stateMachine.priorityCode()); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 315 | log.info("Send EAP success message to supplicant {}", stateMachine.supplicantAddress().toString()); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 316 | sendPacketToSupplicant(eth, stateMachine.supplicantConnectpoint()); |
| 317 | |
| 318 | stateMachine.authorizeAccess(); |
| 319 | |
| 320 | break; |
| 321 | case RADIUS.RADIUS_CODE_ACCESS_REJECT: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 322 | log.debug("RADIUS packet: RADIUS_CODE_ACCESS_REJECT"); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 323 | //send an EAPOL - Failure to the supplicant. |
| 324 | byte[] eapMessageFailure; |
| 325 | eapPayload = new EAP(); |
| 326 | RADIUSAttribute radiusAttrEap = radiusPacket.getAttribute(RADIUSAttribute.RADIUS_ATTR_EAP_MESSAGE); |
| 327 | if (radiusAttrEap == null) { |
| 328 | eapPayload.setCode(EAP.FAILURE); |
| 329 | eapPayload.setIdentifier(stateMachine.challengeIdentifier()); |
| 330 | eapPayload.setLength(EAP.EAP_HDR_LEN_SUC_FAIL); |
| 331 | } else { |
| 332 | eapMessageFailure = radiusAttrEap.getValue(); |
Jonathan Hart | 4731dd9 | 2018-05-02 17:30:05 -0700 | [diff] [blame] | 333 | eapPayload = EAP.deserializer().deserialize( |
| 334 | eapMessageFailure, 0, eapMessageFailure.length); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 335 | } |
| 336 | eth = buildEapolResponse(stateMachine.supplicantAddress(), |
| 337 | MacAddress.valueOf(nasMacAddress), |
| 338 | stateMachine.vlanId(), |
| 339 | EAPOL.EAPOL_PACKET, |
| 340 | eapPayload, stateMachine.priorityCode()); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 341 | log.warn("Send EAP failure message to supplicant {}", stateMachine.supplicantAddress().toString()); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 342 | sendPacketToSupplicant(eth, stateMachine.supplicantConnectpoint()); |
| 343 | stateMachine.denyAccess(); |
| 344 | |
| 345 | break; |
| 346 | default: |
| 347 | log.warn("Unknown RADIUS message received with code: {}", radiusPacket.getCode()); |
| 348 | } |
Aaron Kruglikov | d39d99e | 2015-07-03 13:30:57 -0700 | [diff] [blame] | 349 | } |
| 350 | |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 351 | /** |
| 352 | * Send the ethernet packet to the supplicant. |
| 353 | * |
| 354 | * @param ethernetPkt the ethernet packet |
| 355 | * @param connectPoint the connect point to send out |
| 356 | */ |
| 357 | private void sendPacketToSupplicant(Ethernet ethernetPkt, ConnectPoint connectPoint) { |
| 358 | TrafficTreatment treatment = DefaultTrafficTreatment.builder().setOutput(connectPoint.port()).build(); |
| 359 | OutboundPacket packet = new DefaultOutboundPacket(connectPoint.deviceId(), |
| 360 | treatment, ByteBuffer.wrap(ethernetPkt.serialize())); |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 361 | if (log.isTraceEnabled()) { |
| 362 | EAPOL eap = ((EAPOL) ethernetPkt.getPayload()); |
| 363 | log.trace("Sending eapol payload {} enclosed in {} to supplicant at {}", |
| 364 | eap, ethernetPkt, connectPoint); |
| 365 | } |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 366 | packetService.emit(packet); |
| 367 | } |
| 368 | |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 369 | @Override |
| 370 | public String toString() { |
| 371 | return ToStringBuilder.reflectionToString(this); |
| 372 | } |
| 373 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 374 | // our handler defined as a private inner class |
| 375 | |
| 376 | /** |
| 377 | * Packet processor responsible for forwarding packets along their paths. |
| 378 | */ |
| 379 | private class ReactivePacketProcessor implements PacketProcessor { |
| 380 | @Override |
| 381 | public void process(PacketContext context) { |
| 382 | |
| 383 | // Extract the original Ethernet frame from the packet information |
| 384 | InboundPacket pkt = context.inPacket(); |
| 385 | Ethernet ethPkt = pkt.parsed(); |
| 386 | if (ethPkt == null) { |
| 387 | return; |
| 388 | } |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 389 | |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 390 | try { |
| 391 | // identify if incoming packet comes from supplicant (EAP) or RADIUS |
| 392 | switch (EthType.EtherType.lookup(ethPkt.getEtherType())) { |
| 393 | case EAPOL: |
| 394 | handleSupplicantPacket(context.inPacket()); |
| 395 | break; |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 396 | default: |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 397 | // any other packets let the specific implementation handle |
| 398 | impl.handlePacketFromServer(context); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 399 | } |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 400 | } catch (StateMachineException e) { |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 401 | log.warn("Unable to process packet:", e); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 402 | } |
| 403 | } |
| 404 | |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 405 | /** |
| 406 | * Creates and initializes common fields of a RADIUS packet. |
| 407 | * |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 408 | * @param stateMachine state machine for the request |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 409 | * @param eapPacket EAP packet |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 410 | * @return RADIUS packet |
| 411 | */ |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 412 | private RADIUS getRadiusPayload(StateMachine stateMachine, byte identifier, EAP eapPacket) { |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 413 | RADIUS radiusPayload = |
| 414 | new RADIUS(RADIUS.RADIUS_CODE_ACCESS_REQUEST, |
| 415 | eapPacket.getIdentifier()); |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 416 | |
| 417 | // set Request Authenticator in StateMachine |
| 418 | stateMachine.setRequestAuthenticator(radiusPayload.generateAuthCode()); |
| 419 | |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 420 | radiusPayload.setIdentifier(identifier); |
| 421 | radiusPayload.setAttribute(RADIUSAttribute.RADIUS_ATTR_USERNAME, |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 422 | stateMachine.username()); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 423 | |
| 424 | radiusPayload.setAttribute(RADIUSAttribute.RADIUS_ATTR_NAS_IP, |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 425 | AaaManager.this.nasIpAddress.getAddress()); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 426 | |
| 427 | radiusPayload.encapsulateMessage(eapPacket); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 428 | |
| 429 | return radiusPayload; |
| 430 | } |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 431 | |
| 432 | /** |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 433 | * Handles PAE packets (supplicant). |
| 434 | * |
| 435 | * @param inPacket Ethernet packet coming from the supplicant |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 436 | */ |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 437 | private void handleSupplicantPacket(InboundPacket inPacket) throws StateMachineException { |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 438 | Ethernet ethPkt = inPacket.parsed(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 439 | // Where does it come from? |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 440 | MacAddress srcMac = ethPkt.getSourceMAC(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 441 | |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 442 | DeviceId deviceId = inPacket.receivedFrom().deviceId(); |
| 443 | PortNumber portNumber = inPacket.receivedFrom().port(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 444 | String sessionId = deviceId.toString() + portNumber.toString(); |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 445 | EAPOL eapol = (EAPOL) ethPkt.getPayload(); |
| 446 | if (log.isTraceEnabled()) { |
| 447 | log.trace("Received EAPOL packet {} in enclosing packet {} from " |
| 448 | + "dev/port: {}/{}", eapol, ethPkt, deviceId, |
| 449 | portNumber); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 450 | } |
Jonathan Hart | a46dddf | 2015-06-30 15:31:20 -0700 | [diff] [blame] | 451 | |
Saurav Das | 987441a | 2018-09-18 16:33:47 -0700 | [diff] [blame^] | 452 | StateMachine stateMachine = StateMachine.lookupStateMachineBySessionId(sessionId); |
| 453 | if (stateMachine == null) { |
| 454 | log.debug("Creating new state machine for sessionId: {} for " |
| 455 | + "dev/port: {}/{}", sessionId, deviceId, portNumber); |
| 456 | stateMachine = new StateMachine(sessionId); |
| 457 | } else { |
| 458 | log.debug("Using existing state-machine for sessionId: {}", sessionId); |
| 459 | } |
| 460 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 461 | |
| 462 | switch (eapol.getEapolType()) { |
| 463 | case EAPOL.EAPOL_START: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 464 | log.debug("EAP packet: EAPOL_START"); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 465 | stateMachine.setSupplicantConnectpoint(inPacket.receivedFrom()); |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 466 | stateMachine.start(); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 467 | |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 468 | //send an EAP Request/Identify to the supplicant |
| 469 | EAP eapPayload = new EAP(EAP.REQUEST, stateMachine.identifier(), EAP.ATTR_IDENTITY, null); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 470 | if (ethPkt.getVlanID() != Ethernet.VLAN_UNTAGGED) { |
| 471 | stateMachine.setPriorityCode(ethPkt.getPriorityCode()); |
| 472 | } |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 473 | Ethernet eth = buildEapolResponse(srcMac, MacAddress.valueOf(nasMacAddress), |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 474 | ethPkt.getVlanID(), EAPOL.EAPOL_PACKET, |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 475 | eapPayload, stateMachine.priorityCode()); |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 476 | |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 477 | stateMachine.setSupplicantAddress(srcMac); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 478 | stateMachine.setVlanId(ethPkt.getVlanID()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 479 | |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 480 | log.debug("Getting EAP identity from supplicant {}", stateMachine.supplicantAddress().toString()); |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 481 | sendPacketToSupplicant(eth, stateMachine.supplicantConnectpoint()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 482 | |
| 483 | break; |
Qianqian Hu | b55a1ac | 2015-12-23 20:44:48 +0800 | [diff] [blame] | 484 | case EAPOL.EAPOL_LOGOFF: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 485 | log.debug("EAP packet: EAPOL_LOGOFF"); |
Ray Milkey | b34b496 | 2016-01-04 10:24:43 -0800 | [diff] [blame] | 486 | if (stateMachine.state() == StateMachine.STATE_AUTHORIZED) { |
| 487 | stateMachine.logoff(); |
Qianqian Hu | b55a1ac | 2015-12-23 20:44:48 +0800 | [diff] [blame] | 488 | } |
| 489 | |
| 490 | break; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 491 | case EAPOL.EAPOL_PACKET: |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 492 | RADIUS radiusPayload; |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 493 | // check if this is a Response/Identify or a Response/TLS |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 494 | EAP eapPacket = (EAP) eapol.getPayload(); |
| 495 | |
| 496 | byte dataType = eapPacket.getDataType(); |
| 497 | switch (dataType) { |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 498 | |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 499 | case EAP.ATTR_IDENTITY: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 500 | log.debug("EAP packet: EAPOL_PACKET ATTR_IDENTITY"); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 501 | // request id access to RADIUS |
| 502 | stateMachine.setUsername(eapPacket.getData()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 503 | |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 504 | radiusPayload = getRadiusPayload(stateMachine, stateMachine.identifier(), eapPacket); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 505 | radiusPayload = pktCustomizer.customizePacket(radiusPayload, inPacket); |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 506 | radiusPayload.addMessageAuthenticator(AaaManager.this.radiusSecret); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 507 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 508 | sendRadiusPacket(radiusPayload, inPacket); |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 509 | |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 510 | // change the state to "PENDING" |
| 511 | stateMachine.requestAccess(); |
| 512 | break; |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 513 | case EAP.ATTR_MD5: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 514 | log.debug("EAP packet: EAPOL_PACKET ATTR_MD5"); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 515 | // verify if the EAP identifier corresponds to the |
| 516 | // challenge identifier from the client state |
| 517 | // machine. |
Ray Milkey | f61a24e | 2015-09-24 16:34:02 -0700 | [diff] [blame] | 518 | if (eapPacket.getIdentifier() == stateMachine.challengeIdentifier()) { |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 519 | //send the RADIUS challenge response |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 520 | radiusPayload = |
| 521 | getRadiusPayload(stateMachine, |
| 522 | stateMachine.identifier(), |
| 523 | eapPacket); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 524 | radiusPayload = pktCustomizer.customizePacket(radiusPayload, inPacket); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 525 | |
Qianqian Hu | b55a1ac | 2015-12-23 20:44:48 +0800 | [diff] [blame] | 526 | if (stateMachine.challengeState() != null) { |
| 527 | radiusPayload.setAttribute(RADIUSAttribute.RADIUS_ATTR_STATE, |
| 528 | stateMachine.challengeState()); |
| 529 | } |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 530 | radiusPayload.addMessageAuthenticator(AaaManager.this.radiusSecret); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 531 | sendRadiusPacket(radiusPayload, inPacket); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 532 | } |
| 533 | break; |
| 534 | case EAP.ATTR_TLS: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 535 | log.debug("EAP packet: EAPOL_PACKET ATTR_TLS"); |
Ray Milkey | 9eb293f | 2015-09-30 15:09:17 -0700 | [diff] [blame] | 536 | // request id access to RADIUS |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 537 | radiusPayload = getRadiusPayload(stateMachine, stateMachine.identifier(), eapPacket); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 538 | radiusPayload = pktCustomizer.customizePacket(radiusPayload, inPacket); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 539 | |
Qianqian Hu | b55a1ac | 2015-12-23 20:44:48 +0800 | [diff] [blame] | 540 | if (stateMachine.challengeState() != null) { |
| 541 | radiusPayload.setAttribute(RADIUSAttribute.RADIUS_ATTR_STATE, |
| 542 | stateMachine.challengeState()); |
| 543 | } |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 544 | stateMachine.setRequestAuthenticator(radiusPayload.generateAuthCode()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 545 | |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 546 | radiusPayload.addMessageAuthenticator(AaaManager.this.radiusSecret); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 547 | sendRadiusPacket(radiusPayload, inPacket); |
Ray Milkey | 5493b51 | 2015-10-21 12:13:49 -0700 | [diff] [blame] | 548 | |
Ray Milkey | f3790b8 | 2015-10-21 16:28:08 -0700 | [diff] [blame] | 549 | if (stateMachine.state() != StateMachine.STATE_PENDING) { |
| 550 | stateMachine.requestAccess(); |
| 551 | } |
Ray Milkey | f51eba2 | 2015-09-25 10:24:23 -0700 | [diff] [blame] | 552 | |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 553 | break; |
| 554 | default: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 555 | log.warn("Unknown EAP packet type"); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 556 | return; |
| 557 | } |
| 558 | break; |
| 559 | default: |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 560 | log.debug("Skipping EAPOL message {}", eapol.getEapolType()); |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 561 | } |
| 562 | } |
Ray Milkey | 967776a | 2015-10-07 14:37:17 -0700 | [diff] [blame] | 563 | } |
| 564 | |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 565 | /** |
Jonathan Hart | 5db4453 | 2018-07-12 18:13:54 -0700 | [diff] [blame] | 566 | * Delegate allowing the StateMachine to notify us of events. |
| 567 | */ |
| 568 | private class InternalStateMachineDelegate implements StateMachineDelegate { |
| 569 | |
| 570 | @Override |
| 571 | public void notify(AuthenticationEvent authenticationEvent) { |
| 572 | log.info("Auth event {} for {}", |
| 573 | authenticationEvent.type(), authenticationEvent.subject()); |
| 574 | post(authenticationEvent); |
| 575 | } |
| 576 | } |
| 577 | |
| 578 | /** |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 579 | * Configuration Listener, handles change in configuration. |
| 580 | */ |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 581 | private class InternalConfigListener implements NetworkConfigListener { |
| 582 | |
| 583 | /** |
Ray Milkey | c9e8dcc | 2015-12-30 10:31:32 -0800 | [diff] [blame] | 584 | * Reconfigures the AAA application according to the |
| 585 | * configuration parameters passed. |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 586 | * |
| 587 | * @param cfg configuration object |
| 588 | */ |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 589 | private void reconfigureNetwork(AaaConfig cfg) { |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 590 | log.info("Reconfiguring AaaConfig from config: {}", cfg); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 591 | |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 592 | if (cfg == null) { |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 593 | newCfg = new AaaConfig(); |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 594 | } else { |
| 595 | newCfg = cfg; |
| 596 | } |
| 597 | if (newCfg.nasIp() != null) { |
| 598 | nasIpAddress = newCfg.nasIp(); |
| 599 | } |
| 600 | if (newCfg.radiusIp() != null) { |
| 601 | radiusIpAddress = newCfg.radiusIp(); |
| 602 | } |
| 603 | if (newCfg.radiusMac() != null) { |
| 604 | radiusMacAddress = newCfg.radiusMac(); |
| 605 | } |
| 606 | if (newCfg.nasMac() != null) { |
| 607 | nasMacAddress = newCfg.nasMac(); |
| 608 | } |
| 609 | if (newCfg.radiusSecret() != null) { |
| 610 | radiusSecret = newCfg.radiusSecret(); |
| 611 | } |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 612 | |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 613 | boolean reconfigureCustomizer = false; |
| 614 | if (customizer == null || !customizer.equals(newCfg.radiusPktCustomizer())) { |
| 615 | customizer = newCfg.radiusPktCustomizer(); |
| 616 | configurePacketCustomizer(); |
| 617 | reconfigureCustomizer = true; |
| 618 | } |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 619 | |
Deepa Vaddireddy | e0e1072 | 2017-09-27 05:00:10 +0530 | [diff] [blame] | 620 | if (radiusConnectionType == null |
| 621 | || reconfigureCustomizer |
| 622 | || !radiusConnectionType.equals(newCfg.radiusConnectionType())) { |
| 623 | radiusConnectionType = newCfg.radiusConnectionType(); |
| 624 | if (impl != null) { |
| 625 | impl.withdrawIntercepts(); |
| 626 | impl.clearLocalState(); |
| 627 | } |
| 628 | configureRadiusCommunication(); |
| 629 | impl.initializeLocalState(newCfg); |
| 630 | impl.requestIntercepts(); |
| 631 | } else if (impl != null) { |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 632 | impl.clearLocalState(); |
| 633 | impl.initializeLocalState(newCfg); |
Ray Milkey | 5d99bd1 | 2015-10-06 15:41:30 -0700 | [diff] [blame] | 634 | } |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | @Override |
| 638 | public void event(NetworkConfigEvent event) { |
| 639 | |
| 640 | if ((event.type() == NetworkConfigEvent.Type.CONFIG_ADDED || |
| 641 | event.type() == NetworkConfigEvent.Type.CONFIG_UPDATED) && |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 642 | event.configClass().equals(AaaConfig.class)) { |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 643 | |
Jonathan Hart | 092dfb2 | 2015-11-16 23:05:21 -0800 | [diff] [blame] | 644 | AaaConfig cfg = netCfgService.getConfig(appId, AaaConfig.class); |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 645 | reconfigureNetwork(cfg); |
Amit Ghosh | c9ac1e5 | 2017-07-28 12:31:18 +0100 | [diff] [blame] | 646 | |
Matt Jeanneret | 2ff1a78 | 2018-06-13 15:24:25 -0400 | [diff] [blame] | 647 | log.info("Reconfigured: {}", cfg.toString()); |
Ray Milkey | fcb623d | 2015-10-01 16:48:18 -0700 | [diff] [blame] | 648 | } |
| 649 | } |
| 650 | } |
Amit Ghosh | f739be5 | 2017-09-21 15:49:37 +0100 | [diff] [blame] | 651 | |
| 652 | private class InternalDeviceListener implements DeviceListener { |
| 653 | @Override |
| 654 | public void event(DeviceEvent event) { |
| 655 | |
| 656 | switch (event.type()) { |
| 657 | case PORT_REMOVED: |
| 658 | DeviceId devId = event.subject().id(); |
| 659 | PortNumber portNumber = event.port().number(); |
| 660 | String sessionId = devId.toString() + portNumber.toString(); |
| 661 | |
| 662 | Map<String, StateMachine> sessionIdMap = StateMachine.sessionIdMap(); |
| 663 | StateMachine removed = sessionIdMap.remove(sessionId); |
| 664 | if (removed != null) { |
| 665 | StateMachine.deleteStateMachineMapping(removed); |
| 666 | } |
| 667 | |
| 668 | break; |
| 669 | default: |
| 670 | return; |
| 671 | } |
| 672 | } |
| 673 | } |
Ari Saha | 8983174 | 2015-06-26 10:31:48 -0700 | [diff] [blame] | 674 | } |