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