WifiMonitor.java revision 82b91fd1a87ae9000bac54fb44981d5003958de1
1/* 2 * Copyright (C) 2008 The Android Open Source Project 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 17package com.android.server.wifi; 18 19import android.net.NetworkInfo; 20import android.net.wifi.SupplicantState; 21import android.net.wifi.WifiManager; 22import android.net.wifi.WifiSsid; 23import android.net.wifi.p2p.WifiP2pConfig; 24import android.net.wifi.p2p.WifiP2pDevice; 25import android.net.wifi.p2p.WifiP2pGroup; 26import android.net.wifi.p2p.WifiP2pProvDiscEvent; 27import android.net.wifi.p2p.nsd.WifiP2pServiceResponse; 28import android.os.Message; 29import android.os.SystemClock; 30import android.util.Log; 31 32import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus; 33 34import com.android.internal.util.Protocol; 35import com.android.internal.util.StateMachine; 36 37import java.util.HashMap; 38import java.util.List; 39import java.util.regex.Matcher; 40import java.util.regex.Pattern; 41 42/** 43 * Listens for events from the wpa_supplicant server, and passes them on 44 * to the {@link StateMachine} for handling. Runs in its own thread. 45 * 46 * @hide 47 */ 48public class WifiMonitor { 49 50 private static final boolean DBG = false; 51 private static final String TAG = "WifiMonitor"; 52 53 /** Events we receive from the supplicant daemon */ 54 55 private static final int CONNECTED = 1; 56 private static final int DISCONNECTED = 2; 57 private static final int STATE_CHANGE = 3; 58 private static final int SCAN_RESULTS = 4; 59 private static final int LINK_SPEED = 5; 60 private static final int TERMINATING = 6; 61 private static final int DRIVER_STATE = 7; 62 private static final int EAP_FAILURE = 8; 63 private static final int ASSOC_REJECT = 9; 64 private static final int SSID_TEMP_DISABLE = 10; 65 private static final int SSID_REENABLE = 11; 66 private static final int UNKNOWN = 12; 67 68 /** All events coming from the supplicant start with this prefix */ 69 private static final String EVENT_PREFIX_STR = "CTRL-EVENT-"; 70 private static final int EVENT_PREFIX_LEN_STR = EVENT_PREFIX_STR.length(); 71 72 /** All WPA events coming from the supplicant start with this prefix */ 73 private static final String WPA_EVENT_PREFIX_STR = "WPA:"; 74 private static final String PASSWORD_MAY_BE_INCORRECT_STR = 75 "pre-shared key may be incorrect"; 76 77 /* WPS events */ 78 private static final String WPS_SUCCESS_STR = "WPS-SUCCESS"; 79 80 /* Format: WPS-FAIL msg=%d [config_error=%d] [reason=%d (%s)] */ 81 private static final String WPS_FAIL_STR = "WPS-FAIL"; 82 private static final String WPS_FAIL_PATTERN = 83 "WPS-FAIL msg=\\d+(?: config_error=(\\d+))?(?: reason=(\\d+))?"; 84 85 /* config error code values for config_error=%d */ 86 private static final int CONFIG_MULTIPLE_PBC_DETECTED = 12; 87 private static final int CONFIG_AUTH_FAILURE = 18; 88 89 /* reason code values for reason=%d */ 90 private static final int REASON_TKIP_ONLY_PROHIBITED = 1; 91 private static final int REASON_WEP_PROHIBITED = 2; 92 93 private static final String WPS_OVERLAP_STR = "WPS-OVERLAP-DETECTED"; 94 private static final String WPS_TIMEOUT_STR = "WPS-TIMEOUT"; 95 96 /* Hotspot 2.0 ANQP query events */ 97 private static final String GAS_QUERY_PREFIX_STR = "GAS-QUERY-"; 98 private static final String GAS_QUERY_START_STR = "GAS-QUERY-START"; 99 private static final String GAS_QUERY_DONE_STR = "GAS-QUERY-DONE"; 100 private static final String RX_HS20_ANQP_ICON_STR = "RX-HS20-ANQP-ICON"; 101 private static final int RX_HS20_ANQP_ICON_STR_LEN = RX_HS20_ANQP_ICON_STR.length(); 102 103 /* Hotspot 2.0 events */ 104 private static final String HS20_PREFIX_STR = "HS20-"; 105 private static final String HS20_SUB_REM_STR = "HS20-SUBSCRIPTION-REMEDIATION"; 106 private static final String HS20_DEAUTH_STR = "HS20-DEAUTH-IMMINENT-NOTICE"; 107 108 /** 109 * Names of events from wpa_supplicant (minus the prefix). In the 110 * format descriptions, * "<code>x</code>" 111 * designates a dynamic value that needs to be parsed out from the event 112 * string 113 */ 114 /** 115 * <pre> 116 * CTRL-EVENT-CONNECTED - Connection to xx:xx:xx:xx:xx:xx completed 117 * </pre> 118 * <code>xx:xx:xx:xx:xx:xx</code> is the BSSID of the associated access point 119 */ 120 private static final String CONNECTED_STR = "CONNECTED"; 121 /** 122 * <pre> 123 * CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys 124 * </pre> 125 */ 126 private static final String DISCONNECTED_STR = "DISCONNECTED"; 127 /** 128 * <pre> 129 * CTRL-EVENT-STATE-CHANGE x 130 * </pre> 131 * <code>x</code> is the numerical value of the new state. 132 */ 133 private static final String STATE_CHANGE_STR = "STATE-CHANGE"; 134 /** 135 * <pre> 136 * CTRL-EVENT-SCAN-RESULTS ready 137 * </pre> 138 */ 139 private static final String SCAN_RESULTS_STR = "SCAN-RESULTS"; 140 141 /** 142 * <pre> 143 * CTRL-EVENT-LINK-SPEED x Mb/s 144 * </pre> 145 * {@code x} is the link speed in Mb/sec. 146 */ 147 private static final String LINK_SPEED_STR = "LINK-SPEED"; 148 /** 149 * <pre> 150 * CTRL-EVENT-TERMINATING - signal x 151 * </pre> 152 * <code>x</code> is the signal that caused termination. 153 */ 154 private static final String TERMINATING_STR = "TERMINATING"; 155 /** 156 * <pre> 157 * CTRL-EVENT-DRIVER-STATE state 158 * </pre> 159 * <code>state</code> can be HANGED 160 */ 161 private static final String DRIVER_STATE_STR = "DRIVER-STATE"; 162 /** 163 * <pre> 164 * CTRL-EVENT-EAP-FAILURE EAP authentication failed 165 * </pre> 166 */ 167 private static final String EAP_FAILURE_STR = "EAP-FAILURE"; 168 169 /** 170 * This indicates an authentication failure on EAP FAILURE event 171 */ 172 private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed"; 173 174 /** 175 * This indicates an assoc reject event 176 */ 177 private static final String ASSOC_REJECT_STR = "ASSOC-REJECT"; 178 179 /** 180 * This indicates auth or association failure bad enough so as network got disabled 181 * - WPA_PSK auth failure suspecting shared key mismatch 182 * - failed multiple Associations 183 */ 184 private static final String TEMP_DISABLED_STR = "SSID-TEMP-DISABLED"; 185 186 /** 187 * This indicates a previously disabled SSID was reenabled by supplicant 188 */ 189 private static final String REENABLED_STR = "SSID-REENABLED"; 190 191 192 /** 193 * Regex pattern for extracting an Ethernet-style MAC address from a string. 194 * Matches a strings like the following:<pre> 195 * CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre> 196 */ 197 private static Pattern mConnectedEventPattern = 198 Pattern.compile("((?:[0-9a-f]{2}:){5}[0-9a-f]{2}) .* \\[id=([0-9]+) "); 199 200 /** P2P events */ 201 private static final String P2P_EVENT_PREFIX_STR = "P2P"; 202 203 /* P2P-DEVICE-FOUND fa:7b:7a:42:02:13 p2p_dev_addr=fa:7b:7a:42:02:13 pri_dev_type=1-0050F204-1 204 name='p2p-TEST1' config_methods=0x188 dev_capab=0x27 group_capab=0x0 */ 205 private static final String P2P_DEVICE_FOUND_STR = "P2P-DEVICE-FOUND"; 206 207 /* P2P-DEVICE-LOST p2p_dev_addr=42:fc:89:e1:e2:27 */ 208 private static final String P2P_DEVICE_LOST_STR = "P2P-DEVICE-LOST"; 209 210 /* P2P-FIND-STOPPED */ 211 private static final String P2P_FIND_STOPPED_STR = "P2P-FIND-STOPPED"; 212 213 /* P2P-GO-NEG-REQUEST 42:fc:89:a8:96:09 dev_passwd_id=4 */ 214 private static final String P2P_GO_NEG_REQUEST_STR = "P2P-GO-NEG-REQUEST"; 215 216 private static final String P2P_GO_NEG_SUCCESS_STR = "P2P-GO-NEG-SUCCESS"; 217 218 /* P2P-GO-NEG-FAILURE status=x */ 219 private static final String P2P_GO_NEG_FAILURE_STR = "P2P-GO-NEG-FAILURE"; 220 221 private static final String P2P_GROUP_FORMATION_SUCCESS_STR = 222 "P2P-GROUP-FORMATION-SUCCESS"; 223 224 private static final String P2P_GROUP_FORMATION_FAILURE_STR = 225 "P2P-GROUP-FORMATION-FAILURE"; 226 227 /* P2P-GROUP-STARTED p2p-wlan0-0 [client|GO] ssid="DIRECT-W8" freq=2437 228 [psk=2182b2e50e53f260d04f3c7b25ef33c965a3291b9b36b455a82d77fd82ca15bc|passphrase="fKG4jMe3"] 229 go_dev_addr=fa:7b:7a:42:02:13 [PERSISTENT] */ 230 private static final String P2P_GROUP_STARTED_STR = "P2P-GROUP-STARTED"; 231 232 /* P2P-GROUP-REMOVED p2p-wlan0-0 [client|GO] reason=REQUESTED */ 233 private static final String P2P_GROUP_REMOVED_STR = "P2P-GROUP-REMOVED"; 234 235 /* P2P-INVITATION-RECEIVED sa=fa:7b:7a:42:02:13 go_dev_addr=f8:7b:7a:42:02:13 236 bssid=fa:7b:7a:42:82:13 unknown-network */ 237 private static final String P2P_INVITATION_RECEIVED_STR = "P2P-INVITATION-RECEIVED"; 238 239 /* P2P-INVITATION-RESULT status=1 */ 240 private static final String P2P_INVITATION_RESULT_STR = "P2P-INVITATION-RESULT"; 241 242 /* P2P-PROV-DISC-PBC-REQ 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 243 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 244 group_capab=0x0 */ 245 private static final String P2P_PROV_DISC_PBC_REQ_STR = "P2P-PROV-DISC-PBC-REQ"; 246 247 /* P2P-PROV-DISC-PBC-RESP 02:12:47:f2:5a:36 */ 248 private static final String P2P_PROV_DISC_PBC_RSP_STR = "P2P-PROV-DISC-PBC-RESP"; 249 250 /* P2P-PROV-DISC-ENTER-PIN 42:fc:89:e1:e2:27 p2p_dev_addr=42:fc:89:e1:e2:27 251 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 252 group_capab=0x0 */ 253 private static final String P2P_PROV_DISC_ENTER_PIN_STR = "P2P-PROV-DISC-ENTER-PIN"; 254 /* P2P-PROV-DISC-SHOW-PIN 42:fc:89:e1:e2:27 44490607 p2p_dev_addr=42:fc:89:e1:e2:27 255 pri_dev_type=1-0050F204-1 name='p2p-TEST2' config_methods=0x188 dev_capab=0x27 256 group_capab=0x0 */ 257 private static final String P2P_PROV_DISC_SHOW_PIN_STR = "P2P-PROV-DISC-SHOW-PIN"; 258 /* P2P-PROV-DISC-FAILURE p2p_dev_addr=42:fc:89:e1:e2:27 */ 259 private static final String P2P_PROV_DISC_FAILURE_STR = "P2P-PROV-DISC-FAILURE"; 260 261 /* 262 * Protocol format is as follows.<br> 263 * See the Table.62 in the WiFi Direct specification for the detail. 264 * ______________________________________________________________ 265 * | Length(2byte) | Type(1byte) | TransId(1byte)}| 266 * ______________________________________________________________ 267 * | status(1byte) | vendor specific(variable) | 268 * 269 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300000101 270 * length=3, service type=0(ALL Service), transaction id=1, 271 * status=1(service protocol type not available)<br> 272 * 273 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 0300020201 274 * length=3, service type=2(UPnP), transaction id=2, 275 * status=1(service protocol type not available) 276 * 277 * P2P-SERV-DISC-RESP 42:fc:89:e1:e2:27 1 990002030010757569643a3131323 278 * 2646534652d383537342d353961622d393332322d3333333435363738393034343a3 279 * a75726e3a736368656d61732d75706e702d6f72673a736572766963653a436f6e746 280 * 56e744469726563746f72793a322c757569643a36383539646564652d383537342d3 281 * 53961622d393333322d3132333435363738393031323a3a75706e703a726f6f74646 282 * 576696365 283 * length=153,type=2(UPnP),transaction id=3,status=0 284 * 285 * UPnP Protocol format is as follows. 286 * ______________________________________________________ 287 * | Version (1) | USN (Variable) | 288 * 289 * version=0x10(UPnP1.0) data=usn:uuid:1122de4e-8574-59ab-9322-33345678 290 * 9044::urn:schemas-upnp-org:service:ContentDirectory:2,usn:uuid:6859d 291 * ede-8574-59ab-9332-123456789012::upnp:rootdevice 292 * 293 * P2P-SERV-DISC-RESP 58:17:0c:bc:dd:ca 21 1900010200045f6970 294 * 70c00c000c01094d795072696e746572c027 295 * length=25, type=1(Bonjour),transaction id=2,status=0 296 * 297 * Bonjour Protocol format is as follows. 298 * __________________________________________________________ 299 * |DNS Name(Variable)|DNS Type(1)|Version(1)|RDATA(Variable)| 300 * 301 * DNS Name=_ipp._tcp.local.,DNS type=12(PTR), Version=1, 302 * RDATA=MyPrinter._ipp._tcp.local. 303 * 304 */ 305 private static final String P2P_SERV_DISC_RESP_STR = "P2P-SERV-DISC-RESP"; 306 307 private static final String HOST_AP_EVENT_PREFIX_STR = "AP"; 308 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 dev_addr=02:90:4c:a0:92:54 */ 309 private static final String AP_STA_CONNECTED_STR = "AP-STA-CONNECTED"; 310 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 */ 311 private static final String AP_STA_DISCONNECTED_STR = "AP-STA-DISCONNECTED"; 312 313 /* Supplicant events reported to a state machine */ 314 private static final int BASE = Protocol.BASE_WIFI_MONITOR; 315 316 /* Connection to supplicant established */ 317 public static final int SUP_CONNECTION_EVENT = BASE + 1; 318 /* Connection to supplicant lost */ 319 public static final int SUP_DISCONNECTION_EVENT = BASE + 2; 320 /* Network connection completed */ 321 public static final int NETWORK_CONNECTION_EVENT = BASE + 3; 322 /* Network disconnection completed */ 323 public static final int NETWORK_DISCONNECTION_EVENT = BASE + 4; 324 /* Scan results are available */ 325 public static final int SCAN_RESULTS_EVENT = BASE + 5; 326 /* Supplicate state changed */ 327 public static final int SUPPLICANT_STATE_CHANGE_EVENT = BASE + 6; 328 /* Password failure and EAP authentication failure */ 329 public static final int AUTHENTICATION_FAILURE_EVENT = BASE + 7; 330 /* WPS success detected */ 331 public static final int WPS_SUCCESS_EVENT = BASE + 8; 332 /* WPS failure detected */ 333 public static final int WPS_FAIL_EVENT = BASE + 9; 334 /* WPS overlap detected */ 335 public static final int WPS_OVERLAP_EVENT = BASE + 10; 336 /* WPS timeout detected */ 337 public static final int WPS_TIMEOUT_EVENT = BASE + 11; 338 /* Driver was hung */ 339 public static final int DRIVER_HUNG_EVENT = BASE + 12; 340 /* SSID was disabled due to auth failure or excessive 341 * connection failures */ 342 public static final int SSID_TEMP_DISABLED = BASE + 13; 343 /* SSID was reenabled */ 344 public static final int SSID_REENABLED = BASE + 14; 345 346 /* P2P events */ 347 public static final int P2P_DEVICE_FOUND_EVENT = BASE + 21; 348 public static final int P2P_DEVICE_LOST_EVENT = BASE + 22; 349 public static final int P2P_GO_NEGOTIATION_REQUEST_EVENT = BASE + 23; 350 public static final int P2P_GO_NEGOTIATION_SUCCESS_EVENT = BASE + 25; 351 public static final int P2P_GO_NEGOTIATION_FAILURE_EVENT = BASE + 26; 352 public static final int P2P_GROUP_FORMATION_SUCCESS_EVENT = BASE + 27; 353 public static final int P2P_GROUP_FORMATION_FAILURE_EVENT = BASE + 28; 354 public static final int P2P_GROUP_STARTED_EVENT = BASE + 29; 355 public static final int P2P_GROUP_REMOVED_EVENT = BASE + 30; 356 public static final int P2P_INVITATION_RECEIVED_EVENT = BASE + 31; 357 public static final int P2P_INVITATION_RESULT_EVENT = BASE + 32; 358 public static final int P2P_PROV_DISC_PBC_REQ_EVENT = BASE + 33; 359 public static final int P2P_PROV_DISC_PBC_RSP_EVENT = BASE + 34; 360 public static final int P2P_PROV_DISC_ENTER_PIN_EVENT = BASE + 35; 361 public static final int P2P_PROV_DISC_SHOW_PIN_EVENT = BASE + 36; 362 public static final int P2P_FIND_STOPPED_EVENT = BASE + 37; 363 public static final int P2P_SERV_DISC_RESP_EVENT = BASE + 38; 364 public static final int P2P_PROV_DISC_FAILURE_EVENT = BASE + 39; 365 366 /* hostap events */ 367 public static final int AP_STA_DISCONNECTED_EVENT = BASE + 41; 368 public static final int AP_STA_CONNECTED_EVENT = BASE + 42; 369 370 /* Indicates assoc reject event */ 371 public static final int ASSOCIATION_REJECTION_EVENT = BASE + 43; 372 373 /* hotspot 2.0 ANQP events */ 374 public static final int GAS_QUERY_START_EVENT = BASE + 51; 375 public static final int GAS_QUERY_DONE_EVENT = BASE + 52; 376 public static final int RX_HS20_ANQP_ICON_EVENT = BASE + 53; 377 378 /* hotspot 2.0 events */ 379 public static final int HS20_REMEDIATION_EVENT = BASE + 61; 380 public static final int HS20_DEAUTH_EVENT = BASE + 62; 381 382 /** 383 * This indicates a read error on the monitor socket conenction 384 */ 385 private static final String WPA_RECV_ERROR_STR = "recv error"; 386 387 /** 388 * Max errors before we close supplicant connection 389 */ 390 private static final int MAX_RECV_ERRORS = 10; 391 392 private final String mInterfaceName; 393 private final WifiNative mWifiNative; 394 private final StateMachine mStateMachine; 395 private StateMachine mStateMachine2; 396 private boolean mMonitoring; 397 398 // This is a global counter, since it's not monitor specific. However, the existing 399 // implementation forwards all "global" control events like CTRL-EVENT-TERMINATING 400 // to the p2p0 monitor. Is that expected ? It seems a bit surprising. 401 // 402 // TODO: If the p2p0 monitor isn't registered, the behaviour is even more surprising. 403 // The event will be dispatched to all monitors, and each of them will end up incrementing 404 // it in their dispatchXXX method. If we have 5 registered monitors (say), 2 consecutive 405 // recv errors will cause us to disconnect from the supplicant (instead of the intended 10). 406 // 407 // This variable is always accessed and modified under a WifiMonitorSingleton lock. 408 private static int sRecvErrors; 409 410 public WifiMonitor(StateMachine stateMachine, WifiNative wifiNative) { 411 if (DBG) Log.d(TAG, "Creating WifiMonitor"); 412 mWifiNative = wifiNative; 413 mInterfaceName = wifiNative.mInterfaceName; 414 mStateMachine = stateMachine; 415 mStateMachine2 = null; 416 mMonitoring = false; 417 418 WifiMonitorSingleton.sInstance.registerInterfaceMonitor(mInterfaceName, this); 419 } 420 421 // TODO: temporary hack, should be handle by supplicant manager (new component in future) 422 public void setStateMachine2(StateMachine stateMachine) { 423 mStateMachine2 = stateMachine; 424 } 425 426 public void startMonitoring() { 427 WifiMonitorSingleton.sInstance.startMonitoring(mInterfaceName); 428 } 429 430 public void stopMonitoring() { 431 WifiMonitorSingleton.sInstance.stopMonitoring(mInterfaceName); 432 } 433 434 public void stopSupplicant() { 435 WifiMonitorSingleton.sInstance.stopSupplicant(); 436 } 437 438 public void killSupplicant(boolean p2pSupported) { 439 WifiMonitorSingleton.sInstance.killSupplicant(p2pSupported); 440 } 441 442 private static class WifiMonitorSingleton { 443 private static final WifiMonitorSingleton sInstance = new WifiMonitorSingleton(); 444 445 private final HashMap<String, WifiMonitor> mIfaceMap = new HashMap<String, WifiMonitor>(); 446 private boolean mConnected = false; 447 private WifiNative mWifiNative; 448 449 private WifiMonitorSingleton() { 450 } 451 452 public synchronized void startMonitoring(String iface) { 453 WifiMonitor m = mIfaceMap.get(iface); 454 if (m == null) { 455 Log.e(TAG, "startMonitor called with unknown iface=" + iface); 456 return; 457 } 458 459 Log.d(TAG, "startMonitoring(" + iface + ") with mConnected = " + mConnected); 460 461 if (mConnected) { 462 m.mMonitoring = true; 463 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 464 } else { 465 if (DBG) Log.d(TAG, "connecting to supplicant"); 466 int connectTries = 0; 467 while (true) { 468 if (mWifiNative.connectToSupplicant()) { 469 m.mMonitoring = true; 470 m.mStateMachine.sendMessage(SUP_CONNECTION_EVENT); 471 new MonitorThread(mWifiNative, this).start(); 472 mConnected = true; 473 break; 474 } 475 if (connectTries++ < 5) { 476 try { 477 Thread.sleep(1000); 478 } catch (InterruptedException ignore) { 479 } 480 } else { 481 mIfaceMap.remove(iface); 482 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 483 Log.e(TAG, "startMonitoring(" + iface + ") failed!"); 484 break; 485 } 486 } 487 } 488 } 489 490 public synchronized void stopMonitoring(String iface) { 491 WifiMonitor m = mIfaceMap.get(iface); 492 if (DBG) Log.d(TAG, "stopMonitoring(" + iface + ") = " + m.mStateMachine); 493 m.mMonitoring = false; 494 m.mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 495 } 496 497 public synchronized void registerInterfaceMonitor(String iface, WifiMonitor m) { 498 if (DBG) Log.d(TAG, "registerInterface(" + iface + "+" + m.mStateMachine + ")"); 499 mIfaceMap.put(iface, m); 500 if (mWifiNative == null) { 501 mWifiNative = m.mWifiNative; 502 } 503 } 504 505 public synchronized void unregisterInterfaceMonitor(String iface) { 506 // REVIEW: When should we call this? If this isn't called, then WifiMonitor 507 // objects will remain in the mIfaceMap; and won't ever get deleted 508 509 WifiMonitor m = mIfaceMap.remove(iface); 510 if (DBG) Log.d(TAG, "unregisterInterface(" + iface + "+" + m.mStateMachine + ")"); 511 } 512 513 public synchronized void stopSupplicant() { 514 mWifiNative.stopSupplicant(); 515 } 516 517 public synchronized void killSupplicant(boolean p2pSupported) { 518 WifiNative.killSupplicant(p2pSupported); 519 mConnected = false; 520 for (WifiMonitor m : mIfaceMap.values()) { 521 m.mMonitoring = false; 522 } 523 } 524 525 private synchronized boolean dispatchEvent(String eventStr) { 526 String iface; 527 if (eventStr.startsWith("IFNAME=")) { 528 int space = eventStr.indexOf(' '); 529 if (space != -1) { 530 iface = eventStr.substring(7, space); 531 if (!mIfaceMap.containsKey(iface) && iface.startsWith("p2p-")) { 532 // p2p interfaces are created dynamically, but we have 533 // only one P2p state machine monitoring all of them; look 534 // for it explicitly, and send messages there .. 535 iface = "p2p0"; 536 } 537 eventStr = eventStr.substring(space + 1); 538 } else { 539 // No point dispatching this event to any interface, the dispatched 540 // event string will begin with "IFNAME=" which dispatchEvent can't really 541 // do anything about. 542 Log.e(TAG, "Dropping malformed event (unparsable iface): " + eventStr); 543 return false; 544 } 545 } else { 546 // events without prefix belong to p2p0 monitor 547 iface = "p2p0"; 548 } 549 550 if (DBG) Log.d(TAG, "Dispatching event to interface: " + iface); 551 552 WifiMonitor m = mIfaceMap.get(iface); 553 if (m != null) { 554 if (m.mMonitoring) { 555 if (m.dispatchEvent(eventStr)) { 556 mConnected = false; 557 return true; 558 } 559 560 return false; 561 } else { 562 if (DBG) Log.d(TAG, "Dropping event because (" + iface + ") is stopped"); 563 return false; 564 } 565 } else { 566 if (DBG) Log.d(TAG, "Sending to all monitors because there's no matching iface"); 567 boolean done = false; 568 for (WifiMonitor monitor : mIfaceMap.values()) { 569 if (monitor.mMonitoring && monitor.dispatchEvent(eventStr)) { 570 done = true; 571 } 572 } 573 574 if (done) { 575 mConnected = false; 576 } 577 578 return done; 579 } 580 } 581 } 582 583 private static class MonitorThread extends Thread { 584 private final WifiNative mWifiNative; 585 private final WifiMonitorSingleton mWifiMonitorSingleton; 586 587 public MonitorThread(WifiNative wifiNative, WifiMonitorSingleton wifiMonitorSingleton) { 588 super("WifiMonitor"); 589 mWifiNative = wifiNative; 590 mWifiMonitorSingleton = wifiMonitorSingleton; 591 } 592 593 public void run() { 594 //noinspection InfiniteLoopStatement 595 for (;;) { 596 String eventStr = mWifiNative.waitForEvent(); 597 598 // Skip logging the common but mostly uninteresting scan-results event 599 if (DBG && eventStr.indexOf(SCAN_RESULTS_STR) == -1) { 600 Log.d(TAG, "Event [" + eventStr + "]"); 601 } 602 603 if (mWifiMonitorSingleton.dispatchEvent(eventStr)) { 604 if (DBG) Log.d(TAG, "Disconnecting from the supplicant, no more events"); 605 break; 606 } 607 } 608 } 609 } 610 611 private void logDbg(String debug) { 612 long now = SystemClock.elapsedRealtimeNanos(); 613 String ts = String.format("[%,d us] ", now/1000); 614 Log.e(TAG, ts+debug+ " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 615 +" - "+ Thread.currentThread().getStackTrace()[3].getMethodName() 616 +" - "+ Thread.currentThread().getStackTrace()[4].getMethodName() 617 +" - "+ Thread.currentThread().getStackTrace()[5].getMethodName()); 618 619 } 620 621 /* @return true if the event was supplicant disconnection */ 622 private boolean dispatchEvent(String eventStr) { 623 624 if (DBG) logDbg("WifiMonitor dispatchEvent " + eventStr); 625 626 if (!eventStr.startsWith(EVENT_PREFIX_STR)) { 627 if (eventStr.startsWith(WPA_EVENT_PREFIX_STR) && 628 0 < eventStr.indexOf(PASSWORD_MAY_BE_INCORRECT_STR)) { 629 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT); 630 } else if (eventStr.startsWith(WPS_SUCCESS_STR)) { 631 mStateMachine.sendMessage(WPS_SUCCESS_EVENT); 632 } else if (eventStr.startsWith(WPS_FAIL_STR)) { 633 handleWpsFailEvent(eventStr); 634 } else if (eventStr.startsWith(WPS_OVERLAP_STR)) { 635 mStateMachine.sendMessage(WPS_OVERLAP_EVENT); 636 } else if (eventStr.startsWith(WPS_TIMEOUT_STR)) { 637 mStateMachine.sendMessage(WPS_TIMEOUT_EVENT); 638 } else if (eventStr.startsWith(P2P_EVENT_PREFIX_STR)) { 639 handleP2pEvents(eventStr); 640 } else if (eventStr.startsWith(HOST_AP_EVENT_PREFIX_STR)) { 641 handleHostApEvents(eventStr); 642 } else if (eventStr.startsWith(GAS_QUERY_PREFIX_STR)) { 643 handleGasQueryEvents(eventStr); 644 } else if (eventStr.startsWith(RX_HS20_ANQP_ICON_STR)) { 645 if (mStateMachine2 != null) 646 mStateMachine2.sendMessage(RX_HS20_ANQP_ICON_EVENT, 647 eventStr.substring(RX_HS20_ANQP_ICON_STR_LEN + 1)); 648 } else if (eventStr.startsWith(HS20_PREFIX_STR)) { 649 handleHs20Events(eventStr); 650 } else { 651 if (DBG) Log.w(TAG, "couldn't identify event type - " + eventStr); 652 } 653 return false; 654 } 655 656 String eventName = eventStr.substring(EVENT_PREFIX_LEN_STR); 657 int nameEnd = eventName.indexOf(' '); 658 if (nameEnd != -1) 659 eventName = eventName.substring(0, nameEnd); 660 if (eventName.length() == 0) { 661 if (DBG) Log.i(TAG, "Received wpa_supplicant event with empty event name"); 662 return false; 663 } 664 /* 665 * Map event name into event enum 666 */ 667 int event; 668 if (eventName.equals(CONNECTED_STR)) 669 event = CONNECTED; 670 else if (eventName.equals(DISCONNECTED_STR)) 671 event = DISCONNECTED; 672 else if (eventName.equals(STATE_CHANGE_STR)) 673 event = STATE_CHANGE; 674 else if (eventName.equals(SCAN_RESULTS_STR)) 675 event = SCAN_RESULTS; 676 else if (eventName.equals(LINK_SPEED_STR)) 677 event = LINK_SPEED; 678 else if (eventName.equals(TERMINATING_STR)) 679 event = TERMINATING; 680 else if (eventName.equals(DRIVER_STATE_STR)) 681 event = DRIVER_STATE; 682 else if (eventName.equals(EAP_FAILURE_STR)) 683 event = EAP_FAILURE; 684 else if (eventName.equals(ASSOC_REJECT_STR)) 685 event = ASSOC_REJECT; 686 else if (eventName.equals(TEMP_DISABLED_STR)) { 687 event = SSID_TEMP_DISABLE; 688 } else if (eventName.equals(REENABLED_STR)) { 689 event = SSID_REENABLE; 690 } 691 else 692 event = UNKNOWN; 693 694 String eventData = eventStr; 695 if (event == DRIVER_STATE || event == LINK_SPEED) 696 eventData = eventData.split(" ")[1]; 697 else if (event == STATE_CHANGE || event == EAP_FAILURE) { 698 int ind = eventStr.indexOf(" "); 699 if (ind != -1) { 700 eventData = eventStr.substring(ind + 1); 701 } 702 } else { 703 int ind = eventStr.indexOf(" - "); 704 if (ind != -1) { 705 eventData = eventStr.substring(ind + 3); 706 } 707 } 708 709 if ((event == SSID_TEMP_DISABLE)||(event == SSID_REENABLE)) { 710 String substr = null; 711 int netId = -1; 712 int ind = eventStr.indexOf(" "); 713 if (ind != -1) { 714 substr = eventStr.substring(ind + 1); 715 } 716 if (substr != null) { 717 String status[] = substr.split(" "); 718 for (String key : status) { 719 if (key.regionMatches(0, "id=", 0, 3)) { 720 int idx = 3; 721 netId = 0; 722 while (idx < key.length()) { 723 char c = key.charAt(idx); 724 if ((c >= 0x30) && (c <= 0x39)) { 725 netId *= 10; 726 netId += c - 0x30; 727 idx++; 728 } else { 729 break; 730 } 731 } 732 } 733 } 734 } 735 mStateMachine.sendMessage((event == SSID_TEMP_DISABLE)? 736 SSID_TEMP_DISABLED:SSID_REENABLED, netId, 0, substr); 737 } else if (event == STATE_CHANGE) { 738 handleSupplicantStateChange(eventData); 739 } else if (event == DRIVER_STATE) { 740 handleDriverEvent(eventData); 741 } else if (event == TERMINATING) { 742 /** 743 * Close the supplicant connection if we see 744 * too many recv errors 745 */ 746 if (eventData.startsWith(WPA_RECV_ERROR_STR)) { 747 if (++sRecvErrors > MAX_RECV_ERRORS) { 748 if (DBG) { 749 Log.d(TAG, "too many recv errors, closing connection"); 750 } 751 } else { 752 return false; 753 } 754 } 755 756 // notify and exit 757 mStateMachine.sendMessage(SUP_DISCONNECTION_EVENT); 758 return true; 759 } else if (event == EAP_FAILURE) { 760 if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) { 761 logDbg("WifiMonitor send auth failure (EAP_AUTH_FAILURE) "); 762 mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT); 763 } 764 } else if (event == ASSOC_REJECT) { 765 mStateMachine.sendMessage(ASSOCIATION_REJECTION_EVENT); 766 } else { 767 handleEvent(event, eventData); 768 } 769 sRecvErrors = 0; 770 return false; 771 } 772 773 private void handleDriverEvent(String state) { 774 if (state == null) { 775 return; 776 } 777 if (state.equals("HANGED")) { 778 mStateMachine.sendMessage(DRIVER_HUNG_EVENT); 779 } 780 } 781 782 /** 783 * Handle all supplicant events except STATE-CHANGE 784 * @param event the event type 785 * @param remainder the rest of the string following the 786 * event name and " — " 787 */ 788 void handleEvent(int event, String remainder) { 789 switch (event) { 790 case DISCONNECTED: 791 handleNetworkStateChange(NetworkInfo.DetailedState.DISCONNECTED, remainder); 792 break; 793 794 case CONNECTED: 795 handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED, remainder); 796 break; 797 798 case SCAN_RESULTS: 799 mStateMachine.sendMessage(SCAN_RESULTS_EVENT); 800 break; 801 802 case UNKNOWN: 803 break; 804 } 805 } 806 807 private void handleWpsFailEvent(String dataString) { 808 final Pattern p = Pattern.compile(WPS_FAIL_PATTERN); 809 Matcher match = p.matcher(dataString); 810 int reason = 0; 811 if (match.find()) { 812 String cfgErrStr = match.group(1); 813 String reasonStr = match.group(2); 814 815 if (reasonStr != null) { 816 int reasonInt = Integer.parseInt(reasonStr); 817 switch(reasonInt) { 818 case REASON_TKIP_ONLY_PROHIBITED: 819 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 820 WifiManager.WPS_TKIP_ONLY_PROHIBITED, 0)); 821 return; 822 case REASON_WEP_PROHIBITED: 823 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 824 WifiManager.WPS_WEP_PROHIBITED, 0)); 825 return; 826 default: 827 reason = reasonInt; 828 break; 829 } 830 } 831 if (cfgErrStr != null) { 832 int cfgErrInt = Integer.parseInt(cfgErrStr); 833 switch(cfgErrInt) { 834 case CONFIG_AUTH_FAILURE: 835 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 836 WifiManager.WPS_AUTH_FAILURE, 0)); 837 return; 838 case CONFIG_MULTIPLE_PBC_DETECTED: 839 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 840 WifiManager.WPS_OVERLAP_ERROR, 0)); 841 return; 842 default: 843 if (reason == 0) reason = cfgErrInt; 844 break; 845 } 846 } 847 } 848 //For all other errors, return a generic internal error 849 mStateMachine.sendMessage(mStateMachine.obtainMessage(WPS_FAIL_EVENT, 850 WifiManager.ERROR, reason)); 851 } 852 853 /* <event> status=<err> and the special case of <event> reason=FREQ_CONFLICT */ 854 private P2pStatus p2pError(String dataString) { 855 P2pStatus err = P2pStatus.UNKNOWN; 856 String[] tokens = dataString.split(" "); 857 if (tokens.length < 2) return err; 858 String[] nameValue = tokens[1].split("="); 859 if (nameValue.length != 2) return err; 860 861 /* Handle the special case of reason=FREQ+CONFLICT */ 862 if (nameValue[1].equals("FREQ_CONFLICT")) { 863 return P2pStatus.NO_COMMON_CHANNEL; 864 } 865 try { 866 err = P2pStatus.valueOf(Integer.parseInt(nameValue[1])); 867 } catch (NumberFormatException e) { 868 e.printStackTrace(); 869 } 870 return err; 871 } 872 873 /** 874 * Handle p2p events 875 */ 876 private void handleP2pEvents(String dataString) { 877 if (dataString.startsWith(P2P_DEVICE_FOUND_STR)) { 878 mStateMachine.sendMessage(P2P_DEVICE_FOUND_EVENT, new WifiP2pDevice(dataString)); 879 } else if (dataString.startsWith(P2P_DEVICE_LOST_STR)) { 880 mStateMachine.sendMessage(P2P_DEVICE_LOST_EVENT, new WifiP2pDevice(dataString)); 881 } else if (dataString.startsWith(P2P_FIND_STOPPED_STR)) { 882 mStateMachine.sendMessage(P2P_FIND_STOPPED_EVENT); 883 } else if (dataString.startsWith(P2P_GO_NEG_REQUEST_STR)) { 884 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_REQUEST_EVENT, 885 new WifiP2pConfig(dataString)); 886 } else if (dataString.startsWith(P2P_GO_NEG_SUCCESS_STR)) { 887 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_SUCCESS_EVENT); 888 } else if (dataString.startsWith(P2P_GO_NEG_FAILURE_STR)) { 889 mStateMachine.sendMessage(P2P_GO_NEGOTIATION_FAILURE_EVENT, p2pError(dataString)); 890 } else if (dataString.startsWith(P2P_GROUP_FORMATION_SUCCESS_STR)) { 891 mStateMachine.sendMessage(P2P_GROUP_FORMATION_SUCCESS_EVENT); 892 } else if (dataString.startsWith(P2P_GROUP_FORMATION_FAILURE_STR)) { 893 mStateMachine.sendMessage(P2P_GROUP_FORMATION_FAILURE_EVENT, p2pError(dataString)); 894 } else if (dataString.startsWith(P2P_GROUP_STARTED_STR)) { 895 mStateMachine.sendMessage(P2P_GROUP_STARTED_EVENT, new WifiP2pGroup(dataString)); 896 } else if (dataString.startsWith(P2P_GROUP_REMOVED_STR)) { 897 mStateMachine.sendMessage(P2P_GROUP_REMOVED_EVENT, new WifiP2pGroup(dataString)); 898 } else if (dataString.startsWith(P2P_INVITATION_RECEIVED_STR)) { 899 mStateMachine.sendMessage(P2P_INVITATION_RECEIVED_EVENT, 900 new WifiP2pGroup(dataString)); 901 } else if (dataString.startsWith(P2P_INVITATION_RESULT_STR)) { 902 mStateMachine.sendMessage(P2P_INVITATION_RESULT_EVENT, p2pError(dataString)); 903 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_REQ_STR)) { 904 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_REQ_EVENT, 905 new WifiP2pProvDiscEvent(dataString)); 906 } else if (dataString.startsWith(P2P_PROV_DISC_PBC_RSP_STR)) { 907 mStateMachine.sendMessage(P2P_PROV_DISC_PBC_RSP_EVENT, 908 new WifiP2pProvDiscEvent(dataString)); 909 } else if (dataString.startsWith(P2P_PROV_DISC_ENTER_PIN_STR)) { 910 mStateMachine.sendMessage(P2P_PROV_DISC_ENTER_PIN_EVENT, 911 new WifiP2pProvDiscEvent(dataString)); 912 } else if (dataString.startsWith(P2P_PROV_DISC_SHOW_PIN_STR)) { 913 mStateMachine.sendMessage(P2P_PROV_DISC_SHOW_PIN_EVENT, 914 new WifiP2pProvDiscEvent(dataString)); 915 } else if (dataString.startsWith(P2P_PROV_DISC_FAILURE_STR)) { 916 mStateMachine.sendMessage(P2P_PROV_DISC_FAILURE_EVENT); 917 } else if (dataString.startsWith(P2P_SERV_DISC_RESP_STR)) { 918 List<WifiP2pServiceResponse> list = WifiP2pServiceResponse.newInstance(dataString); 919 if (list != null) { 920 mStateMachine.sendMessage(P2P_SERV_DISC_RESP_EVENT, list); 921 } else { 922 Log.e(TAG, "Null service resp " + dataString); 923 } 924 } 925 } 926 927 /** 928 * Handle hostap events 929 */ 930 private void handleHostApEvents(String dataString) { 931 String[] tokens = dataString.split(" "); 932 /* AP-STA-CONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 933 if (tokens[0].equals(AP_STA_CONNECTED_STR)) { 934 mStateMachine.sendMessage(AP_STA_CONNECTED_EVENT, new WifiP2pDevice(dataString)); 935 /* AP-STA-DISCONNECTED 42:fc:89:a8:96:09 p2p_dev_addr=02:90:4c:a0:92:54 */ 936 } else if (tokens[0].equals(AP_STA_DISCONNECTED_STR)) { 937 mStateMachine.sendMessage(AP_STA_DISCONNECTED_EVENT, new WifiP2pDevice(dataString)); 938 } 939 } 940 941 /** 942 * Handle ANQP events 943 */ 944 private void handleGasQueryEvents(String dataString) { 945 // hs20 946 if (mStateMachine2 == null) return; 947 if (dataString.startsWith(GAS_QUERY_START_STR)) { 948 mStateMachine2.sendMessage(GAS_QUERY_START_EVENT); 949 } else if (dataString.startsWith(GAS_QUERY_DONE_STR)) { 950 String[] dataTokens = dataString.split(" "); 951 String bssid = null; 952 int success = 0; 953 for (String token : dataTokens) { 954 String[] nameValue = token.split("="); 955 if (nameValue.length != 2) { 956 continue; 957 } 958 if (nameValue[0].equals("addr")) { 959 bssid = nameValue[1]; 960 continue; 961 } 962 if (nameValue[0].equals("result")) { 963 success = nameValue[1].equals("SUCCESS") ? 1 : 0; 964 continue; 965 } 966 } 967 mStateMachine2.sendMessage(GAS_QUERY_DONE_EVENT, success, 0, bssid); 968 } else { 969 if (DBG) Log.d(TAG, "Unknown GAS query event: " + dataString); 970 } 971 } 972 973 /** 974 * Handle HS20 events 975 */ 976 private void handleHs20Events(String dataString) { 977 if (mStateMachine2 == null) return; 978 if (dataString.startsWith(HS20_SUB_REM_STR)) { 979 // format: HS20-SUBSCRIPTION-REMEDIATION osu_method, url 980 String[] dataTokens = dataString.split(" "); 981 int method = -1; 982 String url = null; 983 if (dataTokens.length >= 3) { 984 method = Integer.parseInt(dataTokens[1]); 985 url = dataTokens[2]; 986 } 987 mStateMachine2.sendMessage(HS20_REMEDIATION_EVENT, method, 0, url); 988 } else if (dataString.startsWith(HS20_DEAUTH_STR)) { 989 // format: HS20-DEAUTH-IMMINENT-NOTICE code, delay, url 990 int code = -1; 991 int delay = -1; 992 String url = null; 993 String[] dataTokens = dataString.split(" "); 994 if (dataTokens.length >= 4) { 995 code = Integer.parseInt(dataTokens[1]); 996 delay = Integer.parseInt(dataTokens[2]); 997 url = dataTokens[3]; 998 } 999 mStateMachine2.sendMessage(HS20_DEAUTH_EVENT, code, delay, url); 1000 } else { 1001 if (DBG) Log.d(TAG, "Unknown HS20 event: " + dataString); 1002 } 1003 } 1004 1005 /** 1006 * Handle the supplicant STATE-CHANGE event 1007 * @param dataString New supplicant state string in the format: 1008 * id=network-id state=new-state 1009 */ 1010 private void handleSupplicantStateChange(String dataString) { 1011 WifiSsid wifiSsid = null; 1012 int index = dataString.lastIndexOf("SSID="); 1013 if (index != -1) { 1014 wifiSsid = WifiSsid.createFromAsciiEncoded( 1015 dataString.substring(index + 5)); 1016 } 1017 String[] dataTokens = dataString.split(" "); 1018 1019 String BSSID = null; 1020 int networkId = -1; 1021 int newState = -1; 1022 for (String token : dataTokens) { 1023 String[] nameValue = token.split("="); 1024 if (nameValue.length != 2) { 1025 continue; 1026 } 1027 1028 if (nameValue[0].equals("BSSID")) { 1029 BSSID = nameValue[1]; 1030 continue; 1031 } 1032 1033 int value; 1034 try { 1035 value = Integer.parseInt(nameValue[1]); 1036 } catch (NumberFormatException e) { 1037 continue; 1038 } 1039 1040 if (nameValue[0].equals("id")) { 1041 networkId = value; 1042 } else if (nameValue[0].equals("state")) { 1043 newState = value; 1044 } 1045 } 1046 1047 if (newState == -1) return; 1048 1049 SupplicantState newSupplicantState = SupplicantState.INVALID; 1050 for (SupplicantState state : SupplicantState.values()) { 1051 if (state.ordinal() == newState) { 1052 newSupplicantState = state; 1053 break; 1054 } 1055 } 1056 if (newSupplicantState == SupplicantState.INVALID) { 1057 Log.w(TAG, "Invalid supplicant state: " + newState); 1058 } 1059 notifySupplicantStateChange(networkId, wifiSsid, BSSID, newSupplicantState); 1060 } 1061 1062 private void handleNetworkStateChange(NetworkInfo.DetailedState newState, String data) { 1063 String BSSID = null; 1064 int networkId = -1; 1065 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1066 Matcher match = mConnectedEventPattern.matcher(data); 1067 if (!match.find()) { 1068 if (DBG) Log.d(TAG, "Could not find BSSID in CONNECTED event string"); 1069 } else { 1070 BSSID = match.group(1); 1071 try { 1072 networkId = Integer.parseInt(match.group(2)); 1073 } catch (NumberFormatException e) { 1074 networkId = -1; 1075 } 1076 } 1077 notifyNetworkStateChange(newState, BSSID, networkId); 1078 } 1079 } 1080 1081 /** 1082 * Send the state machine a notification that the state of Wifi connectivity 1083 * has changed. 1084 * @param newState the new network state 1085 * @param BSSID when the new state is {@link NetworkInfo.DetailedState#CONNECTED}, 1086 * this is the MAC address of the access point. Otherwise, it 1087 * is {@code null}. 1088 * @param netId the configured network on which the state change occurred 1089 */ 1090 void notifyNetworkStateChange(NetworkInfo.DetailedState newState, String BSSID, int netId) { 1091 if (newState == NetworkInfo.DetailedState.CONNECTED) { 1092 Message m = mStateMachine.obtainMessage(NETWORK_CONNECTION_EVENT, 1093 netId, 0, BSSID); 1094 mStateMachine.sendMessage(m); 1095 } else { 1096 Message m = mStateMachine.obtainMessage(NETWORK_DISCONNECTION_EVENT, 1097 netId, 0, BSSID); 1098 mStateMachine.sendMessage(m); 1099 } 1100 } 1101 1102 /** 1103 * Send the state machine a notification that the state of the supplicant 1104 * has changed. 1105 * @param networkId the configured network on which the state change occurred 1106 * @param wifiSsid network name 1107 * @param BSSID network address 1108 * @param newState the new {@code SupplicantState} 1109 */ 1110 void notifySupplicantStateChange(int networkId, WifiSsid wifiSsid, String BSSID, 1111 SupplicantState newState) { 1112 mStateMachine.sendMessage(mStateMachine.obtainMessage(SUPPLICANT_STATE_CHANGE_EVENT, 1113 new StateChangeResult(networkId, wifiSsid, BSSID, newState))); 1114 } 1115} 1116