WifiStateMachine.java revision f91a96259d1fbdfb9af907dd20cf905a8da3a119
1/* 2 * Copyright (C) 2010 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 static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLED; 20import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLING; 21import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED; 22import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLING; 23import static android.net.wifi.WifiManager.WIFI_AP_STATE_FAILED; 24import static android.net.wifi.WifiManager.WIFI_STATE_DISABLED; 25import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING; 26import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED; 27import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING; 28import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN; 29 30import android.Manifest; 31import android.app.ActivityManager; 32import android.app.PendingIntent; 33import android.bluetooth.BluetoothAdapter; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.pm.ApplicationInfo; 39import android.content.pm.IPackageManager; 40import android.content.pm.PackageManager; 41import android.database.ContentObserver; 42import android.net.ConnectivityManager; 43import android.net.DhcpResults; 44import android.net.IpConfiguration; 45import android.net.LinkProperties; 46import android.net.Network; 47import android.net.NetworkAgent; 48import android.net.NetworkCapabilities; 49import android.net.NetworkFactory; 50import android.net.NetworkInfo; 51import android.net.NetworkInfo.DetailedState; 52import android.net.NetworkMisc; 53import android.net.NetworkRequest; 54import android.net.NetworkUtils; 55import android.net.RouteInfo; 56import android.net.StaticIpConfiguration; 57import android.net.TrafficStats; 58import android.net.dhcp.DhcpClient; 59import android.net.ip.IpManager; 60import android.net.wifi.IApInterface; 61import android.net.wifi.IClientInterface; 62import android.net.wifi.RssiPacketCountInfo; 63import android.net.wifi.ScanResult; 64import android.net.wifi.ScanSettings; 65import android.net.wifi.SupplicantState; 66import android.net.wifi.WifiChannel; 67import android.net.wifi.WifiConfiguration; 68import android.net.wifi.WifiConnectionStatistics; 69import android.net.wifi.WifiEnterpriseConfig; 70import android.net.wifi.WifiInfo; 71import android.net.wifi.WifiLinkLayerStats; 72import android.net.wifi.WifiManager; 73import android.net.wifi.WifiScanner; 74import android.net.wifi.WifiSsid; 75import android.net.wifi.WpsInfo; 76import android.net.wifi.WpsResult; 77import android.net.wifi.WpsResult.Status; 78import android.net.wifi.p2p.IWifiP2pManager; 79import android.os.BatteryStats; 80import android.os.Binder; 81import android.os.Bundle; 82import android.os.IBinder; 83import android.os.INetworkManagementService; 84import android.os.Looper; 85import android.os.Message; 86import android.os.Messenger; 87import android.os.PowerManager; 88import android.os.Process; 89import android.os.RemoteException; 90import android.os.UserHandle; 91import android.os.UserManager; 92import android.os.WorkSource; 93import android.provider.Settings; 94import android.telephony.TelephonyManager; 95import android.text.TextUtils; 96import android.util.Log; 97import android.util.SparseArray; 98 99import com.android.internal.R; 100import com.android.internal.annotations.GuardedBy; 101import com.android.internal.annotations.VisibleForTesting; 102import com.android.internal.app.IBatteryStats; 103import com.android.internal.util.AsyncChannel; 104import com.android.internal.util.MessageUtils; 105import com.android.internal.util.Protocol; 106import com.android.internal.util.State; 107import com.android.internal.util.StateMachine; 108import com.android.server.connectivity.KeepalivePacketData; 109import com.android.server.wifi.hotspot2.AnqpEvent; 110import com.android.server.wifi.hotspot2.IconEvent; 111import com.android.server.wifi.hotspot2.NetworkDetail; 112import com.android.server.wifi.hotspot2.PasspointManager; 113import com.android.server.wifi.hotspot2.Utils; 114import com.android.server.wifi.hotspot2.WnmData; 115import com.android.server.wifi.p2p.WifiP2pServiceImpl; 116import com.android.server.wifi.util.NativeUtil; 117import com.android.server.wifi.util.TelephonyUtil; 118import com.android.server.wifi.util.TelephonyUtil.SimAuthRequestData; 119import com.android.server.wifi.util.TelephonyUtil.SimAuthResponseData; 120 121import java.io.BufferedReader; 122import java.io.FileDescriptor; 123import java.io.FileNotFoundException; 124import java.io.FileReader; 125import java.io.IOException; 126import java.io.PrintWriter; 127import java.net.Inet4Address; 128import java.net.InetAddress; 129import java.util.ArrayList; 130import java.util.Arrays; 131import java.util.HashSet; 132import java.util.LinkedList; 133import java.util.List; 134import java.util.Queue; 135import java.util.Set; 136import java.util.concurrent.atomic.AtomicBoolean; 137import java.util.concurrent.atomic.AtomicInteger; 138 139/** 140 * TODO: 141 * Deprecate WIFI_STATE_UNKNOWN 142 */ 143 144/** 145 * Track the state of Wifi connectivity. All event handling is done here, 146 * and all changes in connectivity state are initiated here. 147 * 148 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 149 * In the current implementation, we support concurrent wifi p2p and wifi operation. 150 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 151 * handles p2p operation. 152 * 153 * @hide 154 */ 155public class WifiStateMachine extends StateMachine implements WifiNative.WifiRssiEventHandler, 156 WifiMulticastLockManager.FilterController { 157 158 private static final String NETWORKTYPE = "WIFI"; 159 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 160 @VisibleForTesting public static final short NUM_LOG_RECS_NORMAL = 100; 161 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE_LOW_MEMORY = 200; 162 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE = 3000; 163 private static final String TAG = "WifiStateMachine"; 164 165 private static final int ONE_HOUR_MILLI = 1000 * 60 * 60; 166 167 private static final String GOOGLE_OUI = "DA-A1-19"; 168 169 private static final String EXTRA_OSU_ICON_QUERY_BSSID = "BSSID"; 170 private static final String EXTRA_OSU_ICON_QUERY_FILENAME = "FILENAME"; 171 172 private boolean mVerboseLoggingEnabled = false; 173 174 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 175 * the corresponding BSSID. 176 */ 177 private boolean didBlackListBSSID = false; 178 179 /** 180 * Log with error attribute 181 * 182 * @param s is string log 183 */ 184 @Override 185 protected void loge(String s) { 186 Log.e(getName(), s); 187 } 188 @Override 189 protected void logd(String s) { 190 Log.d(getName(), s); 191 } 192 @Override 193 protected void log(String s) { 194 Log.d(getName(), s); 195 } 196 private WifiMetrics mWifiMetrics; 197 private WifiInjector mWifiInjector; 198 private WifiMonitor mWifiMonitor; 199 private WifiNative mWifiNative; 200 private WifiConfigManager mWifiConfigManager; 201 private WifiConnectivityManager mWifiConnectivityManager; 202 private WifiNetworkSelector mWifiNetworkSelector; 203 private INetworkManagementService mNwService; 204 private IClientInterface mClientInterface; 205 private ConnectivityManager mCm; 206 private BaseWifiDiagnostics mWifiDiagnostics; 207 private WifiApConfigStore mWifiApConfigStore; 208 private final boolean mP2pSupported; 209 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 210 private boolean mTemporarilyDisconnectWifi = false; 211 private final String mPrimaryDeviceType; 212 private final Clock mClock; 213 private final PropertyService mPropertyService; 214 private final BuildProperties mBuildProperties; 215 private final WifiCountryCode mCountryCode; 216 // Object holding most recent wifi score report and bad Linkspeed count 217 private final WifiScoreReport mWifiScoreReport; 218 private final PasspointManager mPasspointManager; 219 220 /* Scan results handling */ 221 private List<ScanDetail> mScanResults = new ArrayList<>(); 222 private final Object mScanResultsLock = new Object(); 223 224 // For debug, number of known scan results that were found as part of last scan result event, 225 // as well the number of scans results returned by the supplicant with that message 226 private int mNumScanResultsKnown; 227 private int mNumScanResultsReturned; 228 229 private boolean mScreenOn = false; 230 231 private final String mInterfaceName; 232 233 private int mLastSignalLevel = -1; 234 private String mLastBssid; 235 private int mLastNetworkId; // The network Id we successfully joined 236 private boolean mIsLinkDebouncing = false; 237 private final StateMachineDeathRecipient mDeathRecipient = 238 new StateMachineDeathRecipient(this, CMD_CLIENT_INTERFACE_BINDER_DEATH); 239 private boolean mIpReachabilityDisconnectEnabled = true; 240 241 @Override 242 public void onRssiThresholdBreached(byte curRssi) { 243 if (mVerboseLoggingEnabled) { 244 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 245 } 246 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 247 } 248 249 public void processRssiThreshold(byte curRssi, int reason) { 250 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 251 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 252 return; 253 } 254 for (int i = 0; i < mRssiRanges.length; i++) { 255 if (curRssi < mRssiRanges[i]) { 256 // Assume sorted values(ascending order) for rssi, 257 // bounded by high(127) and low(-128) at extremeties 258 byte maxRssi = mRssiRanges[i]; 259 byte minRssi = mRssiRanges[i-1]; 260 // This value of hw has to be believed as this value is averaged and has breached 261 // the rssi thresholds and raised event to host. This would be eggregious if this 262 // value is invalid 263 mWifiInfo.setRssi(curRssi); 264 updateCapabilities(getCurrentWifiConfiguration()); 265 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 266 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 267 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 268 break; 269 } 270 } 271 } 272 273 // Testing various network disconnect cases by sending lots of spurious 274 // disconnect to supplicant 275 private boolean testNetworkDisconnect = false; 276 277 private boolean mEnableRssiPolling = false; 278 private int mRssiPollToken = 0; 279 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 280 * In CONNECT_MODE, the STA can scan and connect to an access point 281 * In SCAN_ONLY_MODE, the STA can only scan for access points 282 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 283 */ 284 private int mOperationalMode = CONNECT_MODE; 285 private boolean mIsScanOngoing = false; 286 private boolean mIsFullScanOngoing = false; 287 288 private final Queue<Message> mBufferedScanMsg = new LinkedList<>(); 289 private static final int UNKNOWN_SCAN_SOURCE = -1; 290 private static final int ADD_OR_UPDATE_SOURCE = -3; 291 292 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 293 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 294 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 295 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 296 297 private boolean mBluetoothConnectionActive = false; 298 299 private PowerManager.WakeLock mSuspendWakeLock; 300 301 /** 302 * Interval in milliseconds between polling for RSSI 303 * and linkspeed information 304 */ 305 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 306 307 /** 308 * Interval in milliseconds between receiving a disconnect event 309 * while connected to a good AP, and handling the disconnect proper 310 */ 311 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 4000; 312 313 /** 314 * Delay between supplicant restarts upon failure to establish connection 315 */ 316 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 317 318 /** 319 * Number of times we attempt to restart supplicant 320 */ 321 private static final int SUPPLICANT_RESTART_TRIES = 5; 322 323 /** 324 * Value to set in wpa_supplicant "bssid" field when we don't want to restrict connection to 325 * a specific AP. 326 */ 327 private static final String SUPPLICANT_BSSID_ANY = "any"; 328 329 private int mSupplicantRestartCount = 0; 330 /* Tracks sequence number on stop failure message */ 331 private int mSupplicantStopFailureToken = 0; 332 333 /** 334 * The link properties of the wifi interface. 335 * Do not modify this directly; use updateLinkProperties instead. 336 */ 337 private LinkProperties mLinkProperties; 338 339 /* Tracks sequence number on a periodic scan message */ 340 private int mPeriodicScanToken = 0; 341 342 // Wakelock held during wifi start/stop and driver load/unload 343 private PowerManager.WakeLock mWakeLock; 344 345 private Context mContext; 346 347 private final Object mDhcpResultsLock = new Object(); 348 private DhcpResults mDhcpResults; 349 350 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 351 private final WifiInfo mWifiInfo; 352 private NetworkInfo mNetworkInfo; 353 private final NetworkCapabilities mDfltNetworkCapabilities; 354 private SupplicantStateTracker mSupplicantStateTracker; 355 356 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 357 358 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 359 private boolean mAutoRoaming = false; 360 361 // Roaming failure count 362 private int mRoamFailCount = 0; 363 364 // This is the BSSID we are trying to associate to, it can be set to SUPPLICANT_BSSID_ANY 365 // if we havent selected a BSSID for joining. 366 private String mTargetRoamBSSID = SUPPLICANT_BSSID_ANY; 367 // This one is used to track whta is the current target network ID. This is used for error 368 // handling during connection setup since many error message from supplicant does not report 369 // SSID Once connected, it will be set to invalid 370 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 371 private long mLastDriverRoamAttempt = 0; 372 private WifiConfiguration targetWificonfiguration = null; 373 374 boolean isRoaming() { 375 return mAutoRoaming; 376 } 377 378 /** 379 * Method to clear {@link #mTargetRoamBSSID} and reset the the current connected network's 380 * bssid in wpa_supplicant after a roam/connect attempt. 381 */ 382 public boolean clearTargetBssid(String dbg) { 383 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 384 if (config == null) { 385 return false; 386 } 387 String bssid = SUPPLICANT_BSSID_ANY; 388 if (config.BSSID != null) { 389 bssid = config.BSSID; 390 if (mVerboseLoggingEnabled) { 391 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 392 } 393 } 394 if (mVerboseLoggingEnabled) { 395 logd(dbg + " clearTargetBssid " + bssid + " key=" + config.configKey()); 396 } 397 mTargetRoamBSSID = bssid; 398 return mWifiNative.setConfiguredNetworkBSSID(bssid); 399 } 400 401 /** 402 * Set Config's default BSSID (for association purpose) and {@link #mTargetRoamBSSID} 403 * @param config config need set BSSID 404 * @param bssid default BSSID to assocaite with when connect to this network 405 * @return false -- does not change the current default BSSID of the configure 406 * true -- change the current default BSSID of the configur 407 */ 408 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 409 if (config == null || bssid == null) { 410 return false; 411 } 412 if (config.BSSID != null) { 413 bssid = config.BSSID; 414 if (mVerboseLoggingEnabled) { 415 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 416 } 417 } 418 if (mVerboseLoggingEnabled) { 419 Log.d(TAG, "setTargetBssid set to " + bssid + " key=" + config.configKey()); 420 } 421 mTargetRoamBSSID = bssid; 422 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 423 return true; 424 } 425 426 private final IpManager mIpManager; 427 428 // Channel for sending replies. 429 private AsyncChannel mReplyChannel = new AsyncChannel(); 430 431 // Used to initiate a connection with WifiP2pService 432 private AsyncChannel mWifiP2pChannel; 433 434 private WifiScanner mWifiScanner; 435 436 @GuardedBy("mWifiReqCountLock") 437 private int mConnectionReqCount = 0; 438 private WifiNetworkFactory mNetworkFactory; 439 @GuardedBy("mWifiReqCountLock") 440 private int mUntrustedReqCount = 0; 441 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 442 private WifiNetworkAgent mNetworkAgent; 443 private final Object mWifiReqCountLock = new Object(); 444 445 private byte[] mRssiRanges; 446 447 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 448 // We should really persist that into the networkHistory.txt file, and read it back when 449 // WifiStateMachine starts up 450 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 451 452 // Used to filter out requests we couldn't possibly satisfy. 453 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 454 455 // Provide packet filter capabilities to ConnectivityService. 456 private final NetworkMisc mNetworkMisc = new NetworkMisc(); 457 458 /* The base for wifi message types */ 459 static final int BASE = Protocol.BASE_WIFI; 460 /* Start the supplicant */ 461 static final int CMD_START_SUPPLICANT = BASE + 11; 462 /* Stop the supplicant */ 463 static final int CMD_STOP_SUPPLICANT = BASE + 12; 464 /* Indicates Static IP succeeded */ 465 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 466 /* Indicates Static IP failed */ 467 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 468 /* Indicates supplicant stop failed */ 469 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 470 /* A delayed message sent to start driver when it fail to come up */ 471 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 472 473 /* Start the soft access point */ 474 static final int CMD_START_AP = BASE + 21; 475 /* Indicates soft ap start failed */ 476 static final int CMD_START_AP_FAILURE = BASE + 22; 477 /* Stop the soft access point */ 478 static final int CMD_STOP_AP = BASE + 23; 479 /* Soft access point teardown is completed. */ 480 static final int CMD_AP_STOPPED = BASE + 24; 481 482 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 483 484 /* Supplicant commands */ 485 /* Is supplicant alive ? */ 486 static final int CMD_PING_SUPPLICANT = BASE + 51; 487 /* Add/update a network configuration */ 488 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 489 /* Delete a network */ 490 static final int CMD_REMOVE_NETWORK = BASE + 53; 491 /* Enable a network. The device will attempt a connection to the given network. */ 492 static final int CMD_ENABLE_NETWORK = BASE + 54; 493 /* Save configuration */ 494 static final int CMD_SAVE_CONFIG = BASE + 58; 495 /* Get configured networks */ 496 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 497 /* Get adaptors */ 498 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 499 /* Get configured networks with real preSharedKey */ 500 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 501 /* Get Link Layer Stats thru HAL */ 502 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 503 /* Supplicant commands after driver start*/ 504 /* Initiate a scan */ 505 static final int CMD_START_SCAN = BASE + 71; 506 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 507 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 508 /* Disconnect from a network */ 509 static final int CMD_DISCONNECT = BASE + 73; 510 /* Reconnect to a network */ 511 static final int CMD_RECONNECT = BASE + 74; 512 /* Reassociate to a network */ 513 static final int CMD_REASSOCIATE = BASE + 75; 514 /* Get Connection Statistis */ 515 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 516 517 /* Controls suspend mode optimizations 518 * 519 * When high perf mode is enabled, suspend mode optimizations are disabled 520 * 521 * When high perf mode is disabled, suspend mode optimizations are enabled 522 * 523 * Suspend mode optimizations include: 524 * - packet filtering 525 * - turn off roaming 526 * - DTIM wake up settings 527 */ 528 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 529 /* Enables RSSI poll */ 530 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 531 /* RSSI poll */ 532 static final int CMD_RSSI_POLL = BASE + 83; 533 /* Enable suspend mode optimizations in the driver */ 534 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 535 /* Delayed NETWORK_DISCONNECT */ 536 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 537 /* When there are no saved networks, we do a periodic scan to notify user of 538 * an open network */ 539 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 540 /* Test network Disconnection NETWORK_DISCONNECT */ 541 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 542 543 private int testNetworkDisconnectCounter = 0; 544 545 /* Enable TDLS on a specific MAC address */ 546 static final int CMD_ENABLE_TDLS = BASE + 92; 547 548 /** 549 * Watchdog for protecting against b/16823537 550 * Leave time for 4-way handshake to succeed 551 */ 552 static final int ROAM_GUARD_TIMER_MSEC = 15000; 553 554 int roamWatchdogCount = 0; 555 /* Roam state watchdog */ 556 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 557 /* Screen change intent handling */ 558 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 559 560 /* Disconnecting state watchdog */ 561 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 562 563 /* Remove a packages associated configrations */ 564 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 565 566 /* Disable an ephemeral network */ 567 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 568 569 /* Get matching network */ 570 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 571 572 /* alert from firmware */ 573 static final int CMD_FIRMWARE_ALERT = BASE + 100; 574 575 /* SIM is removed; reset any cached data for it */ 576 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 577 578 /* OSU APIs */ 579 static final int CMD_QUERY_OSU_ICON = BASE + 104; 580 581 /* try to match a provider with current network */ 582 static final int CMD_MATCH_PROVIDER_NETWORK = BASE + 105; 583 584 /* Commands from/to the SupplicantStateTracker */ 585 /* Reset the supplicant state tracker */ 586 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 587 588 int disconnectingWatchdogCount = 0; 589 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 590 591 /* P2p commands */ 592 /* We are ok with no response here since we wont do much with it anyway */ 593 public static final int CMD_ENABLE_P2P = BASE + 131; 594 /* In order to shut down supplicant cleanly, we wait till p2p has 595 * been disabled */ 596 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 597 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 598 599 /** 600 * Indicates the end of boot process, should be used to trigger load from config store, 601 * initiate connection attempt, etc. 602 * */ 603 static final int CMD_BOOT_COMPLETED = BASE + 134; 604 /** 605 * Initialize the WifiStateMachine. This is currently used to initialize the 606 * {@link HalDeviceManager} module. 607 */ 608 static final int CMD_INITIALIZE = BASE + 135; 609 610 /* We now have a valid IP configuration. */ 611 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 612 /* We no longer have a valid IP configuration. */ 613 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 614 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 615 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 616 617 /* Supplicant is trying to associate to a given BSSID */ 618 static final int CMD_TARGET_BSSID = BASE + 141; 619 620 /* Reload all networks and reconnect */ 621 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 622 623 static final int CMD_START_CONNECT = BASE + 143; 624 625 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 626 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 627 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 628 629 static final int CMD_UNWANTED_NETWORK = BASE + 144; 630 631 static final int CMD_START_ROAM = BASE + 145; 632 633 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 634 635 static final int CMD_NETWORK_STATUS = BASE + 148; 636 637 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 638 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 639 640 /* Remove a packages associated configrations */ 641 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 642 643 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 644 645 /* used to offload sending IP packet */ 646 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 647 648 /* used to stop offload sending IP packet */ 649 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 650 651 /* used to start rssi monitoring in hw */ 652 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 653 654 /* used to stop rssi moniroting in hw */ 655 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 656 657 /* used to indicated RSSI threshold breach in hw */ 658 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 659 660 /* Enable/Disable WifiConnectivityManager */ 661 static final int CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER = BASE + 166; 662 663 /* Enable/Disable AutoJoin when associated */ 664 static final int CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED = BASE + 167; 665 666 /** 667 * Used to handle messages bounced between WifiStateMachine and IpManager. 668 */ 669 static final int CMD_IPV4_PROVISIONING_SUCCESS = BASE + 200; 670 static final int CMD_IPV4_PROVISIONING_FAILURE = BASE + 201; 671 672 /* Push a new APF program to the HAL */ 673 static final int CMD_INSTALL_PACKET_FILTER = BASE + 202; 674 675 /* Enable/disable fallback packet filtering */ 676 static final int CMD_SET_FALLBACK_PACKET_FILTERING = BASE + 203; 677 678 /* Enable/disable Neighbor Discovery offload functionality. */ 679 static final int CMD_CONFIG_ND_OFFLOAD = BASE + 204; 680 681 /* used to indicate that the foreground user was switched */ 682 static final int CMD_USER_SWITCH = BASE + 205; 683 684 /* used to indicate that the foreground user was switched */ 685 static final int CMD_USER_UNLOCK = BASE + 206; 686 687 /* used to indicate that the foreground user was switched */ 688 static final int CMD_USER_STOP = BASE + 207; 689 690 /* Signals that IClientInterface instance underpinning our state is dead. */ 691 private static final int CMD_CLIENT_INTERFACE_BINDER_DEATH = BASE + 250; 692 693 /* Indicates that diagnostics should time out a connection start event. */ 694 private static final int CMD_DIAGS_CONNECT_TIMEOUT = BASE + 251; 695 696 // For message logging. 697 private static final Class[] sMessageClasses = { 698 AsyncChannel.class, WifiStateMachine.class, DhcpClient.class }; 699 private static final SparseArray<String> sSmToString = 700 MessageUtils.findMessageNames(sMessageClasses); 701 702 703 /* Wifi state machine modes of operation */ 704 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 705 public static final int CONNECT_MODE = 1; 706 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 707 public static final int SCAN_ONLY_MODE = 2; 708 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 709 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 710 /* DISABLED_MODE - Don't connect, don't scan, don't be an AP */ 711 public static final int DISABLED_MODE = 4; 712 713 private static final int SUCCESS = 1; 714 private static final int FAILURE = -1; 715 716 /* Tracks if suspend optimizations need to be disabled by DHCP, 717 * screen or due to high perf mode. 718 * When any of them needs to disable it, we keep the suspend optimizations 719 * disabled 720 */ 721 private int mSuspendOptNeedsDisabled = 0; 722 723 private static final int SUSPEND_DUE_TO_DHCP = 1; 724 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 725 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 726 727 /* Tracks if user has enabled suspend optimizations through settings */ 728 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 729 730 /** 731 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 732 */ 733 private final int mNoNetworksPeriodicScan; 734 735 /** 736 * Supplicant scan interval in milliseconds. 737 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 738 * from the default config if the setting is not set 739 */ 740 private long mSupplicantScanIntervalMs; 741 742 private boolean mEnableAutoJoinWhenAssociated; 743 private int mAlwaysEnableScansWhileAssociated; 744 private final int mThresholdQualifiedRssi24; 745 private final int mThresholdQualifiedRssi5; 746 private final int mThresholdSaturatedRssi24; 747 private final int mThresholdSaturatedRssi5; 748 private final int mThresholdMinimumRssi5; 749 private final int mThresholdMinimumRssi24; 750 private final boolean mEnableLinkDebouncing; 751 private final boolean mEnableChipWakeUpWhenAssociated; 752 private final boolean mEnableRssiPollWhenAssociated; 753 754 int mRunningBeaconCount = 0; 755 756 /* Default parent state */ 757 private State mDefaultState = new DefaultState(); 758 /* Temporary initial state */ 759 private State mInitialState = new InitialState(); 760 /* Driver loaded, waiting for supplicant to start */ 761 private State mSupplicantStartingState = new SupplicantStartingState(); 762 /* Driver loaded and supplicant ready */ 763 private State mSupplicantStartedState = new SupplicantStartedState(); 764 /* Waiting for supplicant to stop and monitor to exit */ 765 private State mSupplicantStoppingState = new SupplicantStoppingState(); 766 /* Wait until p2p is disabled 767 * This is a special state which is entered right after we exit out of DriverStartedState 768 * before transitioning to another state. 769 */ 770 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 771 /* Scan for networks, no connection will be established */ 772 private State mScanModeState = new ScanModeState(); 773 /* Connecting to an access point */ 774 private State mConnectModeState = new ConnectModeState(); 775 /* Connected at 802.11 (L2) level */ 776 private State mL2ConnectedState = new L2ConnectedState(); 777 /* fetching IP after connection to access point (assoc+auth complete) */ 778 private State mObtainingIpState = new ObtainingIpState(); 779 /* Connected with IP addr */ 780 private State mConnectedState = new ConnectedState(); 781 /* Roaming */ 782 private State mRoamingState = new RoamingState(); 783 /* disconnect issued, waiting for network disconnect confirmation */ 784 private State mDisconnectingState = new DisconnectingState(); 785 /* Network is not connected, supplicant assoc+auth is not complete */ 786 private State mDisconnectedState = new DisconnectedState(); 787 /* Waiting for WPS to be completed*/ 788 private State mWpsRunningState = new WpsRunningState(); 789 /* Soft ap state */ 790 private State mSoftApState = new SoftApState(); 791 792 /** 793 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 794 * {@link WifiManager#WIFI_STATE_DISABLING}, 795 * {@link WifiManager#WIFI_STATE_ENABLED}, 796 * {@link WifiManager#WIFI_STATE_ENABLING}, 797 * {@link WifiManager#WIFI_STATE_UNKNOWN} 798 */ 799 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 800 801 /** 802 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 803 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 804 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 805 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 806 * {@link WifiManager#WIFI_AP_STATE_FAILED} 807 */ 808 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 809 810 /** 811 * Work source to use to blame usage on the WiFi service 812 */ 813 public static final WorkSource WIFI_WORK_SOURCE = new WorkSource(Process.WIFI_UID); 814 815 /** 816 * Keep track of whether WIFI is running. 817 */ 818 private boolean mIsRunning = false; 819 820 /** 821 * Keep track of whether we last told the battery stats we had started. 822 */ 823 private boolean mReportedRunning = false; 824 825 /** 826 * Most recently set source of starting WIFI. 827 */ 828 private final WorkSource mRunningWifiUids = new WorkSource(); 829 830 /** 831 * The last reported UIDs that were responsible for starting WIFI. 832 */ 833 private final WorkSource mLastRunningWifiUids = new WorkSource(); 834 835 private TelephonyManager mTelephonyManager; 836 private TelephonyManager getTelephonyManager() { 837 if (mTelephonyManager == null) { 838 mTelephonyManager = mWifiInjector.makeTelephonyManager(); 839 } 840 return mTelephonyManager; 841 } 842 843 private final IBatteryStats mBatteryStats; 844 845 private final String mTcpBufferSizes; 846 847 // Used for debug and stats gathering 848 private static int sScanAlarmIntentCount = 0; 849 850 private FrameworkFacade mFacade; 851 private WifiStateTracker mWifiStateTracker; 852 private final BackupManagerProxy mBackupManagerProxy; 853 854 public WifiStateMachine(Context context, FrameworkFacade facade, Looper looper, 855 UserManager userManager, WifiInjector wifiInjector, 856 BackupManagerProxy backupManagerProxy, WifiCountryCode countryCode, 857 WifiNative wifiNative) { 858 super("WifiStateMachine", looper); 859 mWifiInjector = wifiInjector; 860 mWifiMetrics = mWifiInjector.getWifiMetrics(); 861 mClock = wifiInjector.getClock(); 862 mPropertyService = wifiInjector.getPropertyService(); 863 mBuildProperties = wifiInjector.getBuildProperties(); 864 mContext = context; 865 mFacade = facade; 866 mWifiNative = wifiNative; 867 mBackupManagerProxy = backupManagerProxy; 868 869 // TODO refactor WifiNative use of context out into it's own class 870 mWifiNative.initContext(mContext); 871 mInterfaceName = mWifiNative.getInterfaceName(); 872 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 873 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 874 BatteryStats.SERVICE_NAME)); 875 mWifiStateTracker = wifiInjector.getWifiStateTracker(); 876 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 877 mNwService = INetworkManagementService.Stub.asInterface(b); 878 879 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 880 PackageManager.FEATURE_WIFI_DIRECT); 881 882 mWifiConfigManager = mWifiInjector.getWifiConfigManager(); 883 mWifiApConfigStore = mWifiInjector.getWifiApConfigStore(); 884 mWifiNative.setSystemSupportsFastBssTransition( 885 mContext.getResources().getBoolean(R.bool.config_wifi_fast_bss_transition_enabled)); 886 887 mPasspointManager = mWifiInjector.getPasspointManager(); 888 889 mWifiMonitor = WifiMonitor.getInstance(); 890 mWifiDiagnostics = mWifiInjector.makeWifiDiagnostics(mWifiNative); 891 892 mWifiInfo = new WifiInfo(); 893 mWifiNetworkSelector = mWifiInjector.getWifiNetworkSelector(); 894 mSupplicantStateTracker = 895 mFacade.makeSupplicantStateTracker(context, mWifiConfigManager, getHandler()); 896 897 mLinkProperties = new LinkProperties(); 898 899 mNetworkInfo.setIsAvailable(false); 900 mLastBssid = null; 901 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 902 mLastSignalLevel = -1; 903 904 mIpManager = mFacade.makeIpManager(mContext, mInterfaceName, new IpManagerCallback()); 905 mIpManager.setMulticastFilter(true); 906 907 mNoNetworksPeriodicScan = mContext.getResources().getInteger( 908 R.integer.config_wifi_no_network_periodic_scan_interval); 909 910 // TODO: remove these settings from the config file since we no longer obey them 911 // mContext.getResources().getInteger(R.integer.config_wifi_framework_scan_interval); 912 // mContext.getResources().getBoolean(R.bool.config_wifi_background_scan_support); 913 914 mPrimaryDeviceType = mContext.getResources().getString( 915 R.string.config_wifi_p2p_device_type); 916 917 mCountryCode = countryCode; 918 919 mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager); 920 921 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 922 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 923 924 mNetworkCapabilitiesFilter.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 925 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 926 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 927 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 928 mNetworkCapabilitiesFilter.setLinkUpstreamBandwidthKbps(1024 * 1024); 929 mNetworkCapabilitiesFilter.setLinkDownstreamBandwidthKbps(1024 * 1024); 930 // TODO - needs to be a bit more dynamic 931 mDfltNetworkCapabilities = new NetworkCapabilities(mNetworkCapabilitiesFilter); 932 933 IntentFilter filter = new IntentFilter(); 934 filter.addAction(Intent.ACTION_SCREEN_ON); 935 filter.addAction(Intent.ACTION_SCREEN_OFF); 936 mContext.registerReceiver( 937 new BroadcastReceiver() { 938 @Override 939 public void onReceive(Context context, Intent intent) { 940 String action = intent.getAction(); 941 942 if (action.equals(Intent.ACTION_SCREEN_ON)) { 943 sendMessage(CMD_SCREEN_STATE_CHANGED, 1); 944 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 945 sendMessage(CMD_SCREEN_STATE_CHANGED, 0); 946 } 947 } 948 }, filter); 949 950 mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor( 951 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, 952 new ContentObserver(getHandler()) { 953 @Override 954 public void onChange(boolean selfChange) { 955 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 956 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 957 } 958 }); 959 960 mContext.registerReceiver( 961 new BroadcastReceiver() { 962 @Override 963 public void onReceive(Context context, Intent intent) { 964 sendMessage(CMD_BOOT_COMPLETED); 965 } 966 }, 967 new IntentFilter(Intent.ACTION_LOCKED_BOOT_COMPLETED)); 968 969 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 970 mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getName()); 971 972 mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); 973 mSuspendWakeLock.setReferenceCounted(false); 974 975 mTcpBufferSizes = mContext.getResources().getString( 976 com.android.internal.R.string.config_wifi_tcp_buffers); 977 978 // Load Device configs 979 mEnableAutoJoinWhenAssociated = context.getResources().getBoolean( 980 R.bool.config_wifi_framework_enable_associated_network_selection); 981 mThresholdQualifiedRssi24 = context.getResources().getInteger( 982 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz); 983 mThresholdQualifiedRssi5 = context.getResources().getInteger( 984 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz); 985 mThresholdSaturatedRssi24 = context.getResources().getInteger( 986 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz); 987 mThresholdSaturatedRssi5 = context.getResources().getInteger( 988 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz); 989 mThresholdMinimumRssi5 = context.getResources().getInteger( 990 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz); 991 mThresholdMinimumRssi24 = context.getResources().getInteger( 992 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz); 993 mEnableLinkDebouncing = mContext.getResources().getBoolean( 994 R.bool.config_wifi_enable_disconnection_debounce); 995 mEnableChipWakeUpWhenAssociated = true; 996 mEnableRssiPollWhenAssociated = true; 997 998 // CHECKSTYLE:OFF IndentationCheck 999 addState(mDefaultState); 1000 addState(mInitialState, mDefaultState); 1001 addState(mSupplicantStartingState, mDefaultState); 1002 addState(mSupplicantStartedState, mDefaultState); 1003 addState(mScanModeState, mSupplicantStartedState); 1004 addState(mConnectModeState, mSupplicantStartedState); 1005 addState(mL2ConnectedState, mConnectModeState); 1006 addState(mObtainingIpState, mL2ConnectedState); 1007 addState(mConnectedState, mL2ConnectedState); 1008 addState(mRoamingState, mL2ConnectedState); 1009 addState(mDisconnectingState, mConnectModeState); 1010 addState(mDisconnectedState, mConnectModeState); 1011 addState(mWpsRunningState, mConnectModeState); 1012 addState(mWaitForP2pDisableState, mSupplicantStartedState); 1013 addState(mSupplicantStoppingState, mDefaultState); 1014 addState(mSoftApState, mDefaultState); 1015 // CHECKSTYLE:ON IndentationCheck 1016 1017 setInitialState(mInitialState); 1018 1019 setLogRecSize(NUM_LOG_RECS_NORMAL); 1020 setLogOnlyTransitions(false); 1021 1022 //start the state machine 1023 start(); 1024 1025 // Learn the initial state of whether the screen is on. 1026 // We update this field when we receive broadcasts from the system. 1027 handleScreenStateChanged(powerManager.isInteractive()); 1028 1029 mWifiMonitor.registerHandler(mInterfaceName, CMD_TARGET_BSSID, getHandler()); 1030 mWifiMonitor.registerHandler(mInterfaceName, CMD_ASSOCIATED_BSSID, getHandler()); 1031 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ANQP_DONE_EVENT, getHandler()); 1032 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ASSOCIATION_REJECTION_EVENT, 1033 getHandler()); 1034 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.AUTHENTICATION_FAILURE_EVENT, 1035 getHandler()); 1036 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.DRIVER_HUNG_EVENT, getHandler()); 1037 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_DONE_EVENT, getHandler()); 1038 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_START_EVENT, 1039 getHandler()); 1040 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_REMEDIATION_EVENT, 1041 getHandler()); 1042 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT, 1043 getHandler()); 1044 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT, 1045 getHandler()); 1046 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT, 1047 getHandler()); 1048 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_FAILED_EVENT, getHandler()); 1049 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_RESULTS_EVENT, getHandler()); 1050 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_REENABLED, getHandler()); 1051 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_TEMP_DISABLED, getHandler()); 1052 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_CONNECTION_EVENT, getHandler()); 1053 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_DISCONNECTION_EVENT, 1054 getHandler()); 1055 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 1056 getHandler()); 1057 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_IDENTITY, getHandler()); 1058 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_SIM_AUTH, getHandler()); 1059 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_FAIL_EVENT, getHandler()); 1060 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_OVERLAP_EVENT, getHandler()); 1061 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_SUCCESS_EVENT, getHandler()); 1062 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_TIMEOUT_EVENT, getHandler()); 1063 1064 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 1065 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1066 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 1067 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1068 } 1069 1070 class IpManagerCallback extends IpManager.Callback { 1071 @Override 1072 public void onPreDhcpAction() { 1073 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION); 1074 } 1075 1076 @Override 1077 public void onPostDhcpAction() { 1078 sendMessage(DhcpClient.CMD_POST_DHCP_ACTION); 1079 } 1080 1081 @Override 1082 public void onNewDhcpResults(DhcpResults dhcpResults) { 1083 if (dhcpResults != null) { 1084 sendMessage(CMD_IPV4_PROVISIONING_SUCCESS, dhcpResults); 1085 } else { 1086 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 1087 mWifiInjector.getWifiLastResortWatchdog().noteConnectionFailureAndTriggerIfNeeded( 1088 getTargetSsid(), mTargetRoamBSSID, 1089 WifiLastResortWatchdog.FAILURE_CODE_DHCP); 1090 } 1091 } 1092 1093 @Override 1094 public void onProvisioningSuccess(LinkProperties newLp) { 1095 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1096 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 1097 } 1098 1099 @Override 1100 public void onProvisioningFailure(LinkProperties newLp) { 1101 sendMessage(CMD_IP_CONFIGURATION_LOST); 1102 } 1103 1104 @Override 1105 public void onLinkPropertiesChange(LinkProperties newLp) { 1106 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1107 } 1108 1109 @Override 1110 public void onReachabilityLost(String logMsg) { 1111 sendMessage(CMD_IP_REACHABILITY_LOST, logMsg); 1112 } 1113 1114 @Override 1115 public void installPacketFilter(byte[] filter) { 1116 sendMessage(CMD_INSTALL_PACKET_FILTER, filter); 1117 } 1118 1119 @Override 1120 public void setFallbackMulticastFilter(boolean enabled) { 1121 sendMessage(CMD_SET_FALLBACK_PACKET_FILTERING, enabled); 1122 } 1123 1124 @Override 1125 public void setNeighborDiscoveryOffload(boolean enabled) { 1126 sendMessage(CMD_CONFIG_ND_OFFLOAD, (enabled ? 1 : 0)); 1127 } 1128 } 1129 1130 private void stopIpManager() { 1131 /* Restore power save and suspend optimizations */ 1132 handlePostDhcpSetup(); 1133 mIpManager.stop(); 1134 } 1135 1136 PendingIntent getPrivateBroadcast(String action, int requestCode) { 1137 Intent intent = new Intent(action, null); 1138 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1139 intent.setPackage("android"); 1140 return mFacade.getBroadcast(mContext, requestCode, intent, 0); 1141 } 1142 1143 /** 1144 * Set wpa_supplicant log level using |mVerboseLoggingLevel| flag. 1145 */ 1146 void setSupplicantLogLevel() { 1147 mWifiNative.setSupplicantLogLevel(mVerboseLoggingEnabled); 1148 } 1149 1150 /** 1151 * Method to update logging level in wifi service related classes. 1152 * 1153 * @param verbose int logging level to use 1154 */ 1155 public void enableVerboseLogging(int verbose) { 1156 if (verbose > 0) { 1157 mVerboseLoggingEnabled = true; 1158 setLogRecSize(ActivityManager.isLowRamDeviceStatic() 1159 ? NUM_LOG_RECS_VERBOSE_LOW_MEMORY : NUM_LOG_RECS_VERBOSE); 1160 } else { 1161 mVerboseLoggingEnabled = false; 1162 setLogRecSize(NUM_LOG_RECS_NORMAL); 1163 } 1164 configureVerboseHalLogging(mVerboseLoggingEnabled); 1165 setSupplicantLogLevel(); 1166 mCountryCode.enableVerboseLogging(verbose); 1167 mWifiScoreReport.enableVerboseLogging(mVerboseLoggingEnabled); 1168 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 1169 mWifiMonitor.enableVerboseLogging(verbose); 1170 mWifiNative.enableVerboseLogging(verbose); 1171 mWifiConfigManager.enableVerboseLogging(verbose); 1172 mSupplicantStateTracker.enableVerboseLogging(verbose); 1173 } 1174 1175 private static final String SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL = "log.tag.WifiHAL"; 1176 private static final String LOGD_LEVEL_DEBUG = "D"; 1177 private static final String LOGD_LEVEL_VERBOSE = "V"; 1178 private void configureVerboseHalLogging(boolean enableVerbose) { 1179 if (mBuildProperties.isUserBuild()) { // Verbose HAL logging not supported on user builds. 1180 return; 1181 } 1182 mPropertyService.set(SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL, 1183 enableVerbose ? LOGD_LEVEL_VERBOSE : LOGD_LEVEL_DEBUG); 1184 } 1185 1186 private int mAggressiveHandover = 0; 1187 1188 int getAggressiveHandover() { 1189 return mAggressiveHandover; 1190 } 1191 1192 void enableAggressiveHandover(int enabled) { 1193 mAggressiveHandover = enabled; 1194 } 1195 1196 public void clearANQPCache() { 1197 // TODO(b/31065385) 1198 // mWifiConfigManager.trimANQPCache(true); 1199 } 1200 1201 public void setAllowScansWithTraffic(int enabled) { 1202 mAlwaysEnableScansWhileAssociated = enabled; 1203 } 1204 1205 public int getAllowScansWithTraffic() { 1206 return mAlwaysEnableScansWhileAssociated; 1207 } 1208 1209 /* 1210 * Dynamically turn on/off if switching networks while connected is allowd. 1211 */ 1212 public boolean setEnableAutoJoinWhenAssociated(boolean enabled) { 1213 sendMessage(CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED, enabled ? 1 : 0); 1214 return true; 1215 } 1216 1217 public boolean getEnableAutoJoinWhenAssociated() { 1218 return mEnableAutoJoinWhenAssociated; 1219 } 1220 1221 private boolean setRandomMacOui() { 1222 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1223 if (TextUtils.isEmpty(oui)) { 1224 oui = GOOGLE_OUI; 1225 } 1226 String[] ouiParts = oui.split("-"); 1227 byte[] ouiBytes = new byte[3]; 1228 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1229 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1230 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1231 1232 logd("Setting OUI to " + oui); 1233 return mWifiNative.setScanningMacOui(ouiBytes); 1234 } 1235 1236 /** 1237 * Helper method to lookup the framework network ID of the network currently configured in 1238 * wpa_supplicant using the provided supplicant network ID. This is needed for translating the 1239 * networkID received from all {@link WifiMonitor} events. 1240 * 1241 * @param supplicantNetworkId Network ID of network in wpa_supplicant. 1242 * @return Corresponding Internal configured network ID 1243 * TODO(b/31080843): This is ugly! We need to hide this translation of networkId's. This will 1244 * be handled once we move all of this connection logic to wificond. 1245 */ 1246 private int lookupFrameworkNetworkId(int supplicantNetworkId) { 1247 return mWifiNative.getFrameworkNetworkId(supplicantNetworkId); 1248 } 1249 1250 /** 1251 * Initiates connection to a network specified by the user/app. This method checks if the 1252 * requesting app holds the WIFI_CONFIG_OVERRIDE permission. 1253 */ 1254 private boolean connectToUserSelectNetwork(int netId, int uid) { 1255 if (!mWifiConfigManager.enableNetwork(netId, true, uid)) { 1256 loge("connectToUserSelectNetwork uid " + uid 1257 + " did not have the permissions to enable=" + netId); 1258 return false; 1259 } 1260 if (!mWifiConfigManager.checkAndUpdateLastConnectUid(netId, uid)) { 1261 logi("connectToUserSelectNetwork Allowing uid " + uid 1262 + " with insufficient permissions to connect=" + netId); 1263 } 1264 // Trigger an immediate connection to the specified network. We're also noting the user 1265 // connect choice here, so that it will be considered in the next network selection. 1266 mWifiConnectivityManager.setUserConnectChoice(netId); 1267 if (mWifiInfo.getNetworkId() == netId) { 1268 // We're already connected to the user specified network, don't trigger a 1269 // reconnection. 1270 logi("connectToUserSelectNetwork already connecting/connected=" + netId); 1271 } else { 1272 startConnectToNetwork(netId, SUPPLICANT_BSSID_ANY); 1273 } 1274 return true; 1275 } 1276 1277 /** 1278 * ****************************************************** 1279 * Methods exposed for public use 1280 * ****************************************************** 1281 */ 1282 1283 public Messenger getMessenger() { 1284 return new Messenger(getHandler()); 1285 } 1286 1287 /** 1288 * TODO: doc 1289 */ 1290 public boolean syncPingSupplicant(AsyncChannel channel) { 1291 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1292 boolean result = (resultMsg.arg1 != FAILURE); 1293 resultMsg.recycle(); 1294 return result; 1295 } 1296 1297 /** 1298 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1299 * given to callingUid. 1300 * 1301 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1302 * workSource is specified. 1303 * @param workSource If not null, blame is given to workSource. 1304 * @param settings Scan settings, see {@link ScanSettings}. 1305 */ 1306 public void startScan(int callingUid, int scanCounter, 1307 ScanSettings settings, WorkSource workSource) { 1308 Bundle bundle = new Bundle(); 1309 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1310 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1311 bundle.putLong(SCAN_REQUEST_TIME, mClock.getWallClockMillis()); 1312 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1313 } 1314 1315 private long mDisconnectedTimeStamp = 0; 1316 1317 public long getDisconnectedTimeMilli() { 1318 if (getCurrentState() == mDisconnectedState 1319 && mDisconnectedTimeStamp != 0) { 1320 long now_ms = mClock.getWallClockMillis(); 1321 return now_ms - mDisconnectedTimeStamp; 1322 } 1323 return 0; 1324 } 1325 1326 // Last connect attempt is used to prevent scan requests: 1327 // - for a period of 10 seconds after attempting to connect 1328 private long lastConnectAttemptTimestamp = 0; 1329 private Set<Integer> lastScanFreqs = null; 1330 1331 // For debugging, keep track of last message status handling 1332 // TODO, find an equivalent mechanism as part of parent class 1333 private static final int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1334 private static final int MESSAGE_HANDLING_STATUS_OK = 1; 1335 private static final int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1336 private static final int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1337 private static final int MESSAGE_HANDLING_STATUS_FAIL = -2; 1338 private static final int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1339 private static final int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1340 private static final int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1341 private static final int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1342 private static final int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1343 1344 private int messageHandlingStatus = 0; 1345 1346 //TODO: this is used only to track connection attempts, however the link state and packet per 1347 //TODO: second logic should be folded into that 1348 private boolean checkOrDeferScanAllowed(Message msg) { 1349 long now = mClock.getWallClockMillis(); 1350 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1351 Message dmsg = Message.obtain(msg); 1352 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1353 return false; 1354 } 1355 return true; 1356 } 1357 1358 private int mOnTime = 0; 1359 private int mTxTime = 0; 1360 private int mRxTime = 0; 1361 1362 private int mOnTimeScreenStateChange = 0; 1363 private long lastOntimeReportTimeStamp = 0; 1364 private long lastScreenStateChangeTimeStamp = 0; 1365 private int mOnTimeLastReport = 0; 1366 private int mTxTimeLastReport = 0; 1367 private int mRxTimeLastReport = 0; 1368 1369 private long lastLinkLayerStatsUpdate = 0; 1370 1371 String reportOnTime() { 1372 long now = mClock.getWallClockMillis(); 1373 StringBuilder sb = new StringBuilder(); 1374 // Report stats since last report 1375 int on = mOnTime - mOnTimeLastReport; 1376 mOnTimeLastReport = mOnTime; 1377 int tx = mTxTime - mTxTimeLastReport; 1378 mTxTimeLastReport = mTxTime; 1379 int rx = mRxTime - mRxTimeLastReport; 1380 mRxTimeLastReport = mRxTime; 1381 int period = (int) (now - lastOntimeReportTimeStamp); 1382 lastOntimeReportTimeStamp = now; 1383 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1384 // Report stats since Screen State Changed 1385 on = mOnTime - mOnTimeScreenStateChange; 1386 period = (int) (now - lastScreenStateChangeTimeStamp); 1387 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1388 return sb.toString(); 1389 } 1390 1391 WifiLinkLayerStats getWifiLinkLayerStats() { 1392 WifiLinkLayerStats stats = null; 1393 if (mWifiLinkLayerStatsSupported > 0) { 1394 String name = "wlan0"; 1395 stats = mWifiNative.getWifiLinkLayerStats(name); 1396 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1397 mWifiLinkLayerStatsSupported -= 1; 1398 } else if (stats != null) { 1399 lastLinkLayerStatsUpdate = mClock.getWallClockMillis(); 1400 mOnTime = stats.on_time; 1401 mTxTime = stats.tx_time; 1402 mRxTime = stats.rx_time; 1403 mRunningBeaconCount = stats.beacon_rx; 1404 } 1405 } 1406 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1407 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1408 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1409 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1410 } else { 1411 mWifiInfo.updatePacketRates(stats, lastLinkLayerStatsUpdate); 1412 } 1413 return stats; 1414 } 1415 1416 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1417 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1418 if (ret != 0) { 1419 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1420 "): hardware error " + ret); 1421 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1422 } else { 1423 return ConnectivityManager.PacketKeepalive.SUCCESS; 1424 } 1425 } 1426 1427 int stopWifiIPPacketOffload(int slot) { 1428 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1429 if (ret != 0) { 1430 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1431 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1432 } else { 1433 return ConnectivityManager.PacketKeepalive.SUCCESS; 1434 } 1435 } 1436 1437 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1438 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1439 } 1440 1441 int stopRssiMonitoringOffload() { 1442 return mWifiNative.stopRssiMonitoring(); 1443 } 1444 1445 private void handleScanRequest(Message message) { 1446 ScanSettings settings = null; 1447 WorkSource workSource = null; 1448 1449 // unbundle parameters 1450 Bundle bundle = (Bundle) message.obj; 1451 1452 if (bundle != null) { 1453 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 1454 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 1455 } 1456 1457 Set<Integer> freqs = null; 1458 if (settings != null && settings.channelSet != null) { 1459 freqs = new HashSet<>(); 1460 for (WifiChannel channel : settings.channelSet) { 1461 freqs.add(channel.freqMHz); 1462 } 1463 } 1464 1465 // Retrieve the list of hidden network SSIDs to scan for. 1466 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = 1467 mWifiConfigManager.retrieveHiddenNetworkList(); 1468 1469 // call wifi native to start the scan 1470 if (startScanNative(freqs, hiddenNetworks, workSource)) { 1471 // a full scan covers everything, clearing scan request buffer 1472 if (freqs == null) 1473 mBufferedScanMsg.clear(); 1474 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 1475 return; 1476 } 1477 1478 // if reach here, scan request is rejected 1479 1480 if (!mIsScanOngoing) { 1481 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 1482 1483 // discard this request and pop up the next one 1484 if (mBufferedScanMsg.size() > 0) { 1485 sendMessage(mBufferedScanMsg.remove()); 1486 } 1487 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 1488 } else if (!mIsFullScanOngoing) { 1489 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 1490 // buffer the scan request to make sure specified channels will be scanned eventually 1491 if (freqs == null) 1492 mBufferedScanMsg.clear(); 1493 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 1494 Message msg = obtainMessage(CMD_START_SCAN, 1495 message.arg1, message.arg2, bundle); 1496 mBufferedScanMsg.add(msg); 1497 } else { 1498 // if too many requests in buffer, combine them into a single full scan 1499 bundle = new Bundle(); 1500 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 1501 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1502 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 1503 mBufferedScanMsg.clear(); 1504 mBufferedScanMsg.add(msg); 1505 } 1506 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 1507 } else { 1508 // mIsScanOngoing and mIsFullScanOngoing 1509 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 1510 } 1511 } 1512 1513 1514 // TODO this is a temporary measure to bridge between WifiScanner and WifiStateMachine until 1515 // scan functionality is refactored out of WifiStateMachine. 1516 /** 1517 * return true iff scan request is accepted 1518 */ 1519 private boolean startScanNative(final Set<Integer> freqs, 1520 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworkList, 1521 WorkSource workSource) { 1522 WifiScanner.ScanSettings settings = new WifiScanner.ScanSettings(); 1523 if (freqs == null) { 1524 settings.band = WifiScanner.WIFI_BAND_BOTH_WITH_DFS; 1525 } else { 1526 settings.band = WifiScanner.WIFI_BAND_UNSPECIFIED; 1527 int index = 0; 1528 settings.channels = new WifiScanner.ChannelSpec[freqs.size()]; 1529 for (Integer freq : freqs) { 1530 settings.channels[index++] = new WifiScanner.ChannelSpec(freq); 1531 } 1532 } 1533 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN 1534 | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT; 1535 1536 settings.hiddenNetworks = 1537 hiddenNetworkList.toArray( 1538 new WifiScanner.ScanSettings.HiddenNetwork[hiddenNetworkList.size()]); 1539 1540 WifiScanner.ScanListener nativeScanListener = new WifiScanner.ScanListener() { 1541 // ignore all events since WifiStateMachine is registered for the supplicant events 1542 @Override 1543 public void onSuccess() { 1544 } 1545 @Override 1546 public void onFailure(int reason, String description) { 1547 mIsScanOngoing = false; 1548 mIsFullScanOngoing = false; 1549 } 1550 @Override 1551 public void onResults(WifiScanner.ScanData[] results) { 1552 } 1553 @Override 1554 public void onFullResult(ScanResult fullScanResult) { 1555 } 1556 @Override 1557 public void onPeriodChanged(int periodInMs) { 1558 } 1559 }; 1560 mWifiScanner.startScan(settings, nativeScanListener, workSource); 1561 mIsScanOngoing = true; 1562 mIsFullScanOngoing = (freqs == null); 1563 lastScanFreqs = freqs; 1564 return true; 1565 } 1566 1567 /** 1568 * TODO: doc 1569 */ 1570 public void setSupplicantRunning(boolean enable) { 1571 if (enable) { 1572 sendMessage(CMD_START_SUPPLICANT); 1573 } else { 1574 sendMessage(CMD_STOP_SUPPLICANT); 1575 } 1576 } 1577 1578 /** 1579 * TODO: doc 1580 */ 1581 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 1582 if (enable) { 1583 sendMessage(CMD_START_AP, wifiConfig); 1584 } else { 1585 sendMessage(CMD_STOP_AP); 1586 } 1587 } 1588 1589 public void setWifiApConfiguration(WifiConfiguration config) { 1590 mWifiApConfigStore.setApConfiguration(config); 1591 } 1592 1593 public WifiConfiguration syncGetWifiApConfiguration() { 1594 return mWifiApConfigStore.getApConfiguration(); 1595 } 1596 1597 /** 1598 * TODO: doc 1599 */ 1600 public int syncGetWifiState() { 1601 return mWifiState.get(); 1602 } 1603 1604 /** 1605 * TODO: doc 1606 */ 1607 public String syncGetWifiStateByName() { 1608 switch (mWifiState.get()) { 1609 case WIFI_STATE_DISABLING: 1610 return "disabling"; 1611 case WIFI_STATE_DISABLED: 1612 return "disabled"; 1613 case WIFI_STATE_ENABLING: 1614 return "enabling"; 1615 case WIFI_STATE_ENABLED: 1616 return "enabled"; 1617 case WIFI_STATE_UNKNOWN: 1618 return "unknown state"; 1619 default: 1620 return "[invalid state]"; 1621 } 1622 } 1623 1624 /** 1625 * TODO: doc 1626 */ 1627 public int syncGetWifiApState() { 1628 return mWifiApState.get(); 1629 } 1630 1631 /** 1632 * TODO: doc 1633 */ 1634 public String syncGetWifiApStateByName() { 1635 switch (mWifiApState.get()) { 1636 case WIFI_AP_STATE_DISABLING: 1637 return "disabling"; 1638 case WIFI_AP_STATE_DISABLED: 1639 return "disabled"; 1640 case WIFI_AP_STATE_ENABLING: 1641 return "enabling"; 1642 case WIFI_AP_STATE_ENABLED: 1643 return "enabled"; 1644 case WIFI_AP_STATE_FAILED: 1645 return "failed"; 1646 default: 1647 return "[invalid state]"; 1648 } 1649 } 1650 1651 public boolean isConnected() { 1652 return getCurrentState() == mConnectedState; 1653 } 1654 1655 public boolean isDisconnected() { 1656 return getCurrentState() == mDisconnectedState; 1657 } 1658 1659 public boolean isSupplicantTransientState() { 1660 SupplicantState supplicantState = mWifiInfo.getSupplicantState(); 1661 if (supplicantState == SupplicantState.ASSOCIATING 1662 || supplicantState == SupplicantState.AUTHENTICATING 1663 || supplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 1664 || supplicantState == SupplicantState.GROUP_HANDSHAKE) { 1665 1666 if (mVerboseLoggingEnabled) { 1667 Log.d(TAG, "Supplicant is under transient state: " + supplicantState); 1668 } 1669 return true; 1670 } else { 1671 if (mVerboseLoggingEnabled) { 1672 Log.d(TAG, "Supplicant is under steady state: " + supplicantState); 1673 } 1674 } 1675 1676 return false; 1677 } 1678 1679 public boolean isLinkDebouncing() { 1680 return mIsLinkDebouncing; 1681 } 1682 1683 /** 1684 * Get status information for the current connection, if any. 1685 * 1686 * @return a {@link WifiInfo} object containing information about the current connection 1687 */ 1688 public WifiInfo syncRequestConnectionInfo() { 1689 return getWiFiInfoForUid(Binder.getCallingUid()); 1690 } 1691 1692 public WifiInfo getWifiInfo() { 1693 return mWifiInfo; 1694 } 1695 1696 public DhcpResults syncGetDhcpResults() { 1697 synchronized (mDhcpResultsLock) { 1698 return new DhcpResults(mDhcpResults); 1699 } 1700 } 1701 1702 /** 1703 * TODO: doc 1704 */ 1705 public void setOperationalMode(int mode) { 1706 if (mVerboseLoggingEnabled) log("setting operational mode to " + String.valueOf(mode)); 1707 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 1708 } 1709 1710 /** 1711 * Allow tests to confirm the operational mode for WSM. 1712 */ 1713 @VisibleForTesting 1714 protected int getOperationalModeForTest() { 1715 return mOperationalMode; 1716 } 1717 1718 /** 1719 * TODO: doc 1720 */ 1721 public List<ScanResult> syncGetScanResultsList() { 1722 synchronized (mScanResultsLock) { 1723 List<ScanResult> scanList = new ArrayList<>(); 1724 for (ScanDetail result : mScanResults) { 1725 scanList.add(new ScanResult(result.getScanResult())); 1726 } 1727 return scanList; 1728 } 1729 } 1730 1731 public boolean syncQueryPasspointIcon(AsyncChannel channel, long bssid, String fileName) { 1732 Bundle bundle = new Bundle(); 1733 bundle.putLong(EXTRA_OSU_ICON_QUERY_BSSID, bssid); 1734 bundle.putString(EXTRA_OSU_ICON_QUERY_FILENAME, fileName); 1735 Message resultMsg = channel.sendMessageSynchronously(CMD_QUERY_OSU_ICON, bundle); 1736 int result = resultMsg.arg1; 1737 resultMsg.recycle(); 1738 return result == 1; 1739 } 1740 1741 public int matchProviderWithCurrentNetwork(AsyncChannel channel, String fqdn) { 1742 Message resultMsg = channel.sendMessageSynchronously(CMD_MATCH_PROVIDER_NETWORK, fqdn); 1743 int result = resultMsg.arg1; 1744 resultMsg.recycle(); 1745 return result; 1746 } 1747 1748 /** 1749 * Deauthenticate and set the re-authentication hold off time for the current network 1750 * @param holdoff hold off time in milliseconds 1751 * @param ess set if the hold off pertains to an ESS rather than a BSS 1752 */ 1753 public void deauthenticateNetwork(AsyncChannel channel, long holdoff, boolean ess) { 1754 // TODO: This needs an implementation 1755 } 1756 1757 public void disableEphemeralNetwork(String SSID) { 1758 if (SSID != null) { 1759 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 1760 } 1761 } 1762 1763 /** 1764 * Disconnect from Access Point 1765 */ 1766 public void disconnectCommand() { 1767 sendMessage(CMD_DISCONNECT); 1768 } 1769 1770 public void disconnectCommand(int uid, int reason) { 1771 sendMessage(CMD_DISCONNECT, uid, reason); 1772 } 1773 1774 /** 1775 * Initiate a reconnection to AP 1776 */ 1777 public void reconnectCommand() { 1778 sendMessage(CMD_RECONNECT); 1779 } 1780 1781 /** 1782 * Initiate a re-association to AP 1783 */ 1784 public void reassociateCommand() { 1785 sendMessage(CMD_REASSOCIATE); 1786 } 1787 1788 /** 1789 * Reload networks and then reconnect; helps load correct data for TLS networks 1790 */ 1791 1792 public void reloadTlsNetworksAndReconnect() { 1793 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 1794 } 1795 1796 /** 1797 * Add a network synchronously 1798 * 1799 * @return network id of the new network 1800 */ 1801 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 1802 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 1803 int result = resultMsg.arg1; 1804 resultMsg.recycle(); 1805 return result; 1806 } 1807 1808 /** 1809 * Get configured networks synchronously 1810 * 1811 * @param channel 1812 * @return 1813 */ 1814 1815 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 1816 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 1817 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1818 resultMsg.recycle(); 1819 return result; 1820 } 1821 1822 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 1823 Message resultMsg = channel.sendMessageSynchronously( 1824 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 1825 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1826 resultMsg.recycle(); 1827 return result; 1828 } 1829 1830 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 1831 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 1832 return (WifiConfiguration) resultMsg.obj; 1833 } 1834 1835 /** 1836 * Get connection statistics synchronously 1837 * 1838 * @param channel 1839 * @return 1840 */ 1841 1842 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 1843 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 1844 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 1845 resultMsg.recycle(); 1846 return result; 1847 } 1848 1849 /** 1850 * Get adaptors synchronously 1851 */ 1852 1853 public int syncGetSupportedFeatures(AsyncChannel channel) { 1854 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 1855 int supportedFeatureSet = resultMsg.arg1; 1856 resultMsg.recycle(); 1857 1858 // Mask the feature set against system properties. 1859 boolean disableRtt = mPropertyService.getBoolean("config.disable_rtt", false); 1860 if (disableRtt) { 1861 supportedFeatureSet &= 1862 ~(WifiManager.WIFI_FEATURE_D2D_RTT | WifiManager.WIFI_FEATURE_D2AP_RTT); 1863 } 1864 1865 return supportedFeatureSet; 1866 } 1867 1868 /** 1869 * Get link layers stats for adapter synchronously 1870 */ 1871 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 1872 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 1873 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 1874 resultMsg.recycle(); 1875 return result; 1876 } 1877 1878 /** 1879 * Delete a network 1880 * 1881 * @param networkId id of the network to be removed 1882 */ 1883 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 1884 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 1885 boolean result = (resultMsg.arg1 != FAILURE); 1886 resultMsg.recycle(); 1887 return result; 1888 } 1889 1890 /** 1891 * Enable a network 1892 * 1893 * @param netId network id of the network 1894 * @param disableOthers true, if all other networks have to be disabled 1895 * @return {@code true} if the operation succeeds, {@code false} otherwise 1896 */ 1897 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 1898 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 1899 disableOthers ? 1 : 0); 1900 boolean result = (resultMsg.arg1 != FAILURE); 1901 resultMsg.recycle(); 1902 return result; 1903 } 1904 1905 /** 1906 * Disable a network 1907 * 1908 * @param netId network id of the network 1909 * @return {@code true} if the operation succeeds, {@code false} otherwise 1910 */ 1911 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 1912 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 1913 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 1914 resultMsg.recycle(); 1915 return result; 1916 } 1917 1918 /** 1919 * Retrieves a WPS-NFC configuration token for the specified network 1920 * 1921 * @return a hex string representation of the WPS-NFC configuration token 1922 */ 1923 public String syncGetWpsNfcConfigurationToken(int netId) { 1924 return mWifiNative.getNfcWpsConfigurationToken(netId); 1925 } 1926 1927 public void enableRssiPolling(boolean enabled) { 1928 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 1929 } 1930 1931 /** 1932 * Start filtering Multicast v4 packets 1933 */ 1934 public void startFilteringMulticastPackets() { 1935 mIpManager.setMulticastFilter(true); 1936 } 1937 1938 /** 1939 * Stop filtering Multicast v4 packets 1940 */ 1941 public void stopFilteringMulticastPackets() { 1942 mIpManager.setMulticastFilter(false); 1943 } 1944 1945 /** 1946 * Set high performance mode of operation. 1947 * Enabling would set active power mode and disable suspend optimizations; 1948 * disabling would set auto power mode and enable suspend optimizations 1949 * 1950 * @param enable true if enable, false otherwise 1951 */ 1952 public void setHighPerfModeEnabled(boolean enable) { 1953 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 1954 } 1955 1956 1957 /** 1958 * reset cached SIM credential data 1959 */ 1960 public synchronized void resetSimAuthNetworks(boolean simPresent) { 1961 sendMessage(CMD_RESET_SIM_NETWORKS, simPresent ? 1 : 0); 1962 } 1963 1964 /** 1965 * Get Network object of current wifi network 1966 * @return Network object of current wifi network 1967 */ 1968 public Network getCurrentNetwork() { 1969 if (mNetworkAgent != null) { 1970 return new Network(mNetworkAgent.netId); 1971 } else { 1972 return null; 1973 } 1974 } 1975 1976 /** 1977 * Enable TDLS for a specific MAC address 1978 */ 1979 public void enableTdls(String remoteMacAddress, boolean enable) { 1980 int enabler = enable ? 1 : 0; 1981 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 1982 } 1983 1984 /** 1985 * Send a message indicating bluetooth adapter connection state changed 1986 */ 1987 public void sendBluetoothAdapterStateChange(int state) { 1988 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 1989 } 1990 1991 /** 1992 * Send a message indicating a package has been uninstalled. 1993 */ 1994 public void removeAppConfigs(String packageName, int uid) { 1995 // Build partial AppInfo manually - package may not exist in database any more 1996 ApplicationInfo ai = new ApplicationInfo(); 1997 ai.packageName = packageName; 1998 ai.uid = uid; 1999 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2000 } 2001 2002 /** 2003 * Send a message indicating a user has been removed. 2004 */ 2005 public void removeUserConfigs(int userId) { 2006 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2007 } 2008 2009 /** 2010 * Save configuration on supplicant 2011 * 2012 * @return {@code true} if the operation succeeds, {@code false} otherwise 2013 * <p/> 2014 * TODO: deprecate this 2015 */ 2016 public boolean syncSaveConfig(AsyncChannel channel) { 2017 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2018 boolean result = (resultMsg.arg1 != FAILURE); 2019 resultMsg.recycle(); 2020 return result; 2021 } 2022 2023 public void updateBatteryWorkSource(WorkSource newSource) { 2024 synchronized (mRunningWifiUids) { 2025 try { 2026 if (newSource != null) { 2027 mRunningWifiUids.set(newSource); 2028 } 2029 if (mIsRunning) { 2030 if (mReportedRunning) { 2031 // If the work source has changed since last time, need 2032 // to remove old work from battery stats. 2033 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2034 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2035 mRunningWifiUids); 2036 mLastRunningWifiUids.set(mRunningWifiUids); 2037 } 2038 } else { 2039 // Now being started, report it. 2040 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2041 mLastRunningWifiUids.set(mRunningWifiUids); 2042 mReportedRunning = true; 2043 } 2044 } else { 2045 if (mReportedRunning) { 2046 // Last reported we were running, time to stop. 2047 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2048 mLastRunningWifiUids.clear(); 2049 mReportedRunning = false; 2050 } 2051 } 2052 mWakeLock.setWorkSource(newSource); 2053 } catch (RemoteException ignore) { 2054 } 2055 } 2056 } 2057 2058 public void dumpIpManager(FileDescriptor fd, PrintWriter pw, String[] args) { 2059 mIpManager.dump(fd, pw, args); 2060 } 2061 2062 @Override 2063 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2064 super.dump(fd, pw, args); 2065 mSupplicantStateTracker.dump(fd, pw, args); 2066 pw.println("mLinkProperties " + mLinkProperties); 2067 pw.println("mWifiInfo " + mWifiInfo); 2068 pw.println("mDhcpResults " + mDhcpResults); 2069 pw.println("mNetworkInfo " + mNetworkInfo); 2070 pw.println("mLastSignalLevel " + mLastSignalLevel); 2071 pw.println("mLastBssid " + mLastBssid); 2072 pw.println("mLastNetworkId " + mLastNetworkId); 2073 pw.println("mOperationalMode " + mOperationalMode); 2074 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2075 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2076 pw.println("mSystemSupportsFastBssTransition " 2077 + mWifiNative.getSystemSupportsFastBssTransition()); 2078 if (mCountryCode.getCountryCodeSentToDriver() != null) { 2079 pw.println("CountryCode sent to driver " + mCountryCode.getCountryCodeSentToDriver()); 2080 } else { 2081 if (mCountryCode.getCountryCode() != null) { 2082 pw.println("CountryCode: " + 2083 mCountryCode.getCountryCode() + " was not sent to driver"); 2084 } else { 2085 pw.println("CountryCode was not initialized"); 2086 } 2087 } 2088 if (mNetworkFactory != null) { 2089 mNetworkFactory.dump(fd, pw, args); 2090 } else { 2091 pw.println("mNetworkFactory is not initialized"); 2092 } 2093 2094 if (mUntrustedNetworkFactory != null) { 2095 mUntrustedNetworkFactory.dump(fd, pw, args); 2096 } else { 2097 pw.println("mUntrustedNetworkFactory is not initialized"); 2098 } 2099 pw.println("Wlan Wake Reasons:" + mWifiNative.getWlanWakeReasonCount()); 2100 pw.println(); 2101 2102 mWifiConfigManager.dump(fd, pw, args); 2103 pw.println(); 2104 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_USER_ACTION); 2105 mWifiDiagnostics.dump(fd, pw, args); 2106 dumpIpManager(fd, pw, args); 2107 mWifiNetworkSelector.dump(fd, pw, args); 2108 } 2109 2110 public void handleUserSwitch(int userId) { 2111 sendMessage(CMD_USER_SWITCH, userId); 2112 } 2113 2114 public void handleUserUnlock(int userId) { 2115 sendMessage(CMD_USER_UNLOCK, userId); 2116 } 2117 2118 public void handleUserStop(int userId) { 2119 sendMessage(CMD_USER_STOP, userId); 2120 } 2121 2122 /** 2123 * ****************************************************** 2124 * Internal private functions 2125 * ****************************************************** 2126 */ 2127 2128 private void logStateAndMessage(Message message, State state) { 2129 messageHandlingStatus = 0; 2130 if (mVerboseLoggingEnabled) { 2131 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2132 } 2133 } 2134 2135 /** 2136 * Return the additional string to be logged by LogRec, default 2137 * 2138 * @param msg that was processed 2139 * @return information to be logged as a String 2140 */ 2141 @Override 2142 protected String getLogRecString(Message msg) { 2143 WifiConfiguration config; 2144 Long now; 2145 String report; 2146 String key; 2147 StringBuilder sb = new StringBuilder(); 2148 if (mScreenOn) { 2149 sb.append("!"); 2150 } 2151 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2152 sb.append("(").append(messageHandlingStatus).append(")"); 2153 } 2154 sb.append(smToString(msg)); 2155 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2156 sb.append(" uid=" + msg.sendingUid); 2157 } 2158 sb.append(" rt=").append(mClock.getUptimeSinceBootMillis()); 2159 sb.append("/").append(mClock.getElapsedSinceBootMillis()); 2160 switch (msg.what) { 2161 case CMD_START_SCAN: 2162 now = mClock.getWallClockMillis(); 2163 sb.append(" "); 2164 sb.append(Integer.toString(msg.arg1)); 2165 sb.append(" "); 2166 sb.append(Integer.toString(msg.arg2)); 2167 sb.append(" ic="); 2168 sb.append(Integer.toString(sScanAlarmIntentCount)); 2169 if (msg.obj != null) { 2170 Bundle bundle = (Bundle) msg.obj; 2171 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2172 if (request != 0) { 2173 sb.append(" proc(ms):").append(now - request); 2174 } 2175 } 2176 if (mIsScanOngoing) sb.append(" onGoing"); 2177 if (mIsFullScanOngoing) sb.append(" full"); 2178 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2179 sb.append(" f=").append(mWifiInfo.getFrequency()); 2180 sb.append(" sc=").append(mWifiInfo.score); 2181 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2182 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2183 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2184 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2185 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2186 if (lastScanFreqs != null) { 2187 sb.append(" list="); 2188 for(int freq : lastScanFreqs) { 2189 sb.append(freq).append(","); 2190 } 2191 } 2192 report = reportOnTime(); 2193 if (report != null) { 2194 sb.append(" ").append(report); 2195 } 2196 break; 2197 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2198 sb.append(" "); 2199 sb.append(Integer.toString(msg.arg1)); 2200 sb.append(" "); 2201 sb.append(Integer.toString(msg.arg2)); 2202 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2203 if (stateChangeResult != null) { 2204 sb.append(stateChangeResult.toString()); 2205 } 2206 break; 2207 case WifiManager.SAVE_NETWORK: 2208 sb.append(" "); 2209 sb.append(Integer.toString(msg.arg1)); 2210 sb.append(" "); 2211 sb.append(Integer.toString(msg.arg2)); 2212 config = (WifiConfiguration) msg.obj; 2213 if (config != null) { 2214 sb.append(" ").append(config.configKey()); 2215 sb.append(" nid=").append(config.networkId); 2216 if (config.hiddenSSID) { 2217 sb.append(" hidden"); 2218 } 2219 if (config.preSharedKey != null 2220 && !config.preSharedKey.equals("*")) { 2221 sb.append(" hasPSK"); 2222 } 2223 if (config.ephemeral) { 2224 sb.append(" ephemeral"); 2225 } 2226 if (config.selfAdded) { 2227 sb.append(" selfAdded"); 2228 } 2229 sb.append(" cuid=").append(config.creatorUid); 2230 sb.append(" suid=").append(config.lastUpdateUid); 2231 } 2232 break; 2233 case WifiManager.FORGET_NETWORK: 2234 sb.append(" "); 2235 sb.append(Integer.toString(msg.arg1)); 2236 sb.append(" "); 2237 sb.append(Integer.toString(msg.arg2)); 2238 config = (WifiConfiguration) msg.obj; 2239 if (config != null) { 2240 sb.append(" ").append(config.configKey()); 2241 sb.append(" nid=").append(config.networkId); 2242 if (config.hiddenSSID) { 2243 sb.append(" hidden"); 2244 } 2245 if (config.preSharedKey != null) { 2246 sb.append(" hasPSK"); 2247 } 2248 if (config.ephemeral) { 2249 sb.append(" ephemeral"); 2250 } 2251 if (config.selfAdded) { 2252 sb.append(" selfAdded"); 2253 } 2254 sb.append(" cuid=").append(config.creatorUid); 2255 sb.append(" suid=").append(config.lastUpdateUid); 2256 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2257 config.getNetworkSelectionStatus(); 2258 sb.append(" ajst=").append( 2259 netWorkSelectionStatus.getNetworkStatusString()); 2260 } 2261 break; 2262 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2263 sb.append(" "); 2264 sb.append(Integer.toString(msg.arg1)); 2265 sb.append(" "); 2266 sb.append(Integer.toString(msg.arg2)); 2267 String bssid = (String) msg.obj; 2268 if (bssid != null && bssid.length() > 0) { 2269 sb.append(" "); 2270 sb.append(bssid); 2271 } 2272 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2273 break; 2274 case WifiMonitor.SCAN_RESULTS_EVENT: 2275 sb.append(" "); 2276 sb.append(Integer.toString(msg.arg1)); 2277 sb.append(" "); 2278 sb.append(Integer.toString(msg.arg2)); 2279 if (mScanResults != null) { 2280 sb.append(" found="); 2281 sb.append(mScanResults.size()); 2282 } 2283 sb.append(" known=").append(mNumScanResultsKnown); 2284 sb.append(" got=").append(mNumScanResultsReturned); 2285 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2286 sb.append(String.format(" con=%d", mConnectionReqCount)); 2287 sb.append(String.format(" untrustedcn=%d", mUntrustedReqCount)); 2288 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2289 if (key != null) { 2290 sb.append(" last=").append(key); 2291 } 2292 break; 2293 case WifiMonitor.SCAN_FAILED_EVENT: 2294 break; 2295 case WifiMonitor.NETWORK_CONNECTION_EVENT: 2296 sb.append(" "); 2297 sb.append(Integer.toString(msg.arg1)); 2298 sb.append(" "); 2299 sb.append(Integer.toString(msg.arg2)); 2300 sb.append(" ").append(mLastBssid); 2301 sb.append(" nid=").append(mLastNetworkId); 2302 config = getCurrentWifiConfiguration(); 2303 if (config != null) { 2304 sb.append(" ").append(config.configKey()); 2305 } 2306 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2307 if (key != null) { 2308 sb.append(" last=").append(key); 2309 } 2310 break; 2311 case CMD_TARGET_BSSID: 2312 case CMD_ASSOCIATED_BSSID: 2313 sb.append(" "); 2314 sb.append(Integer.toString(msg.arg1)); 2315 sb.append(" "); 2316 sb.append(Integer.toString(msg.arg2)); 2317 if (msg.obj != null) { 2318 sb.append(" BSSID=").append((String) msg.obj); 2319 } 2320 if (mTargetRoamBSSID != null) { 2321 sb.append(" Target=").append(mTargetRoamBSSID); 2322 } 2323 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2324 break; 2325 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 2326 if (msg.obj != null) { 2327 sb.append(" ").append((String) msg.obj); 2328 } 2329 sb.append(" nid=").append(msg.arg1); 2330 sb.append(" reason=").append(msg.arg2); 2331 if (mLastBssid != null) { 2332 sb.append(" lastbssid=").append(mLastBssid); 2333 } 2334 if (mWifiInfo.getFrequency() != -1) { 2335 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2336 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2337 } 2338 if (isLinkDebouncing()) { 2339 sb.append(" debounce"); 2340 } 2341 break; 2342 case WifiMonitor.SSID_TEMP_DISABLED: 2343 case WifiMonitor.SSID_REENABLED: 2344 sb.append(" nid=").append(msg.arg1); 2345 if (msg.obj != null) { 2346 sb.append(" ").append((String) msg.obj); 2347 } 2348 config = getCurrentWifiConfiguration(); 2349 if (config != null) { 2350 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2351 config.getNetworkSelectionStatus(); 2352 sb.append(" cur=").append(config.configKey()); 2353 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 2354 if (config.selfAdded) { 2355 sb.append(" selfAdded"); 2356 } 2357 if (config.status != 0) { 2358 sb.append(" st=").append(config.status); 2359 sb.append(" rs=").append( 2360 netWorkSelectionStatus.getNetworkDisableReasonString()); 2361 } 2362 if (config.lastConnected != 0) { 2363 now = mClock.getWallClockMillis(); 2364 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 2365 } 2366 if (mLastBssid != null) { 2367 sb.append(" lastbssid=").append(mLastBssid); 2368 } 2369 if (mWifiInfo.getFrequency() != -1) { 2370 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2371 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2372 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 2373 } 2374 } 2375 break; 2376 case CMD_RSSI_POLL: 2377 case CMD_UNWANTED_NETWORK: 2378 case WifiManager.RSSI_PKTCNT_FETCH: 2379 sb.append(" "); 2380 sb.append(Integer.toString(msg.arg1)); 2381 sb.append(" "); 2382 sb.append(Integer.toString(msg.arg2)); 2383 if (mWifiInfo.getSSID() != null) 2384 if (mWifiInfo.getSSID() != null) 2385 sb.append(" ").append(mWifiInfo.getSSID()); 2386 if (mWifiInfo.getBSSID() != null) 2387 sb.append(" ").append(mWifiInfo.getBSSID()); 2388 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2389 sb.append(" f=").append(mWifiInfo.getFrequency()); 2390 sb.append(" sc=").append(mWifiInfo.score); 2391 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2392 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2393 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2394 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2395 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2396 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2397 report = reportOnTime(); 2398 if (report != null) { 2399 sb.append(" ").append(report); 2400 } 2401 if (mWifiScoreReport.isLastReportValid()) { 2402 sb.append(mWifiScoreReport.getLastReport()); 2403 } 2404 break; 2405 case CMD_START_CONNECT: 2406 case WifiManager.CONNECT_NETWORK: 2407 sb.append(" "); 2408 sb.append(Integer.toString(msg.arg1)); 2409 sb.append(" "); 2410 sb.append(Integer.toString(msg.arg2)); 2411 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2412 if (config != null) { 2413 sb.append(" ").append(config.configKey()); 2414 if (config.visibility != null) { 2415 sb.append(" ").append(config.visibility.toString()); 2416 } 2417 } 2418 if (mTargetRoamBSSID != null) { 2419 sb.append(" ").append(mTargetRoamBSSID); 2420 } 2421 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2422 config = getCurrentWifiConfiguration(); 2423 if (config != null) { 2424 sb.append(config.configKey()); 2425 if (config.visibility != null) { 2426 sb.append(" ").append(config.visibility.toString()); 2427 } 2428 } 2429 break; 2430 case CMD_START_ROAM: 2431 sb.append(" "); 2432 sb.append(Integer.toString(msg.arg1)); 2433 sb.append(" "); 2434 sb.append(Integer.toString(msg.arg2)); 2435 ScanResult result = (ScanResult) msg.obj; 2436 if (result != null) { 2437 now = mClock.getWallClockMillis(); 2438 sb.append(" bssid=").append(result.BSSID); 2439 sb.append(" rssi=").append(result.level); 2440 sb.append(" freq=").append(result.frequency); 2441 if (result.seen > 0 && result.seen < now) { 2442 sb.append(" seen=").append(now - result.seen); 2443 } else { 2444 // Somehow the timestamp for this scan result is inconsistent 2445 sb.append(" !seen=").append(result.seen); 2446 } 2447 } 2448 if (mTargetRoamBSSID != null) { 2449 sb.append(" ").append(mTargetRoamBSSID); 2450 } 2451 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2452 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 2453 break; 2454 case CMD_ADD_OR_UPDATE_NETWORK: 2455 sb.append(" "); 2456 sb.append(Integer.toString(msg.arg1)); 2457 sb.append(" "); 2458 sb.append(Integer.toString(msg.arg2)); 2459 if (msg.obj != null) { 2460 config = (WifiConfiguration) msg.obj; 2461 sb.append(" ").append(config.configKey()); 2462 sb.append(" prio=").append(config.priority); 2463 sb.append(" status=").append(config.status); 2464 if (config.BSSID != null) { 2465 sb.append(" ").append(config.BSSID); 2466 } 2467 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 2468 if (curConfig != null) { 2469 if (curConfig.configKey().equals(config.configKey())) { 2470 sb.append(" is current"); 2471 } else { 2472 sb.append(" current=").append(curConfig.configKey()); 2473 sb.append(" prio=").append(curConfig.priority); 2474 sb.append(" status=").append(curConfig.status); 2475 } 2476 } 2477 } 2478 break; 2479 case WifiManager.DISABLE_NETWORK: 2480 case CMD_ENABLE_NETWORK: 2481 sb.append(" "); 2482 sb.append(Integer.toString(msg.arg1)); 2483 sb.append(" "); 2484 sb.append(Integer.toString(msg.arg2)); 2485 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2486 if (key != null) { 2487 sb.append(" last=").append(key); 2488 } 2489 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2490 if (config != null && (key == null || !config.configKey().equals(key))) { 2491 sb.append(" target=").append(key); 2492 } 2493 break; 2494 case CMD_GET_CONFIGURED_NETWORKS: 2495 sb.append(" "); 2496 sb.append(Integer.toString(msg.arg1)); 2497 sb.append(" "); 2498 sb.append(Integer.toString(msg.arg2)); 2499 sb.append(" num=").append(mWifiConfigManager.getConfiguredNetworks().size()); 2500 break; 2501 case DhcpClient.CMD_PRE_DHCP_ACTION: 2502 sb.append(" "); 2503 sb.append(Integer.toString(msg.arg1)); 2504 sb.append(" "); 2505 sb.append(Integer.toString(msg.arg2)); 2506 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 2507 sb.append(",").append(mWifiInfo.txBad); 2508 sb.append(",").append(mWifiInfo.txRetries); 2509 break; 2510 case DhcpClient.CMD_POST_DHCP_ACTION: 2511 sb.append(" "); 2512 sb.append(Integer.toString(msg.arg1)); 2513 sb.append(" "); 2514 sb.append(Integer.toString(msg.arg2)); 2515 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2516 sb.append(" OK "); 2517 } else if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2518 sb.append(" FAIL "); 2519 } 2520 if (mLinkProperties != null) { 2521 sb.append(" "); 2522 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2523 } 2524 break; 2525 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 2526 sb.append(" "); 2527 sb.append(Integer.toString(msg.arg1)); 2528 sb.append(" "); 2529 sb.append(Integer.toString(msg.arg2)); 2530 if (msg.obj != null) { 2531 NetworkInfo info = (NetworkInfo) msg.obj; 2532 NetworkInfo.State state = info.getState(); 2533 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 2534 if (state != null) { 2535 sb.append(" st=").append(state); 2536 } 2537 if (detailedState != null) { 2538 sb.append("/").append(detailedState); 2539 } 2540 } 2541 break; 2542 case CMD_IP_CONFIGURATION_LOST: 2543 int count = -1; 2544 WifiConfiguration c = getCurrentWifiConfiguration(); 2545 if (c != null) { 2546 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 2547 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 2548 } 2549 sb.append(" "); 2550 sb.append(Integer.toString(msg.arg1)); 2551 sb.append(" "); 2552 sb.append(Integer.toString(msg.arg2)); 2553 sb.append(" failures: "); 2554 sb.append(Integer.toString(count)); 2555 sb.append("/"); 2556 sb.append(Integer.toString(mFacade.getIntegerSetting( 2557 mContext, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, 0))); 2558 if (mWifiInfo.getBSSID() != null) { 2559 sb.append(" ").append(mWifiInfo.getBSSID()); 2560 } 2561 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2562 break; 2563 case CMD_UPDATE_LINKPROPERTIES: 2564 sb.append(" "); 2565 sb.append(Integer.toString(msg.arg1)); 2566 sb.append(" "); 2567 sb.append(Integer.toString(msg.arg2)); 2568 if (mLinkProperties != null) { 2569 sb.append(" "); 2570 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2571 } 2572 break; 2573 case CMD_IP_REACHABILITY_LOST: 2574 if (msg.obj != null) { 2575 sb.append(" ").append((String) msg.obj); 2576 } 2577 break; 2578 case CMD_INSTALL_PACKET_FILTER: 2579 sb.append(" len=" + ((byte[])msg.obj).length); 2580 break; 2581 case CMD_SET_FALLBACK_PACKET_FILTERING: 2582 sb.append(" enabled=" + (boolean)msg.obj); 2583 break; 2584 case CMD_ROAM_WATCHDOG_TIMER: 2585 sb.append(" "); 2586 sb.append(Integer.toString(msg.arg1)); 2587 sb.append(" "); 2588 sb.append(Integer.toString(msg.arg2)); 2589 sb.append(" cur=").append(roamWatchdogCount); 2590 break; 2591 case CMD_DISCONNECTING_WATCHDOG_TIMER: 2592 sb.append(" "); 2593 sb.append(Integer.toString(msg.arg1)); 2594 sb.append(" "); 2595 sb.append(Integer.toString(msg.arg2)); 2596 sb.append(" cur=").append(disconnectingWatchdogCount); 2597 break; 2598 case CMD_START_RSSI_MONITORING_OFFLOAD: 2599 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 2600 case CMD_RSSI_THRESHOLD_BREACH: 2601 sb.append(" rssi="); 2602 sb.append(Integer.toString(msg.arg1)); 2603 sb.append(" thresholds="); 2604 sb.append(Arrays.toString(mRssiRanges)); 2605 break; 2606 case CMD_USER_SWITCH: 2607 sb.append(" userId="); 2608 sb.append(Integer.toString(msg.arg1)); 2609 break; 2610 case CMD_IPV4_PROVISIONING_SUCCESS: 2611 sb.append(" "); 2612 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2613 sb.append("DHCP_OK"); 2614 } else if (msg.arg1 == CMD_STATIC_IP_SUCCESS) { 2615 sb.append("STATIC_OK"); 2616 } else { 2617 sb.append(Integer.toString(msg.arg1)); 2618 } 2619 break; 2620 case CMD_IPV4_PROVISIONING_FAILURE: 2621 sb.append(" "); 2622 if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2623 sb.append("DHCP_FAIL"); 2624 } else if (msg.arg1 == CMD_STATIC_IP_FAILURE) { 2625 sb.append("STATIC_FAIL"); 2626 } else { 2627 sb.append(Integer.toString(msg.arg1)); 2628 } 2629 break; 2630 default: 2631 sb.append(" "); 2632 sb.append(Integer.toString(msg.arg1)); 2633 sb.append(" "); 2634 sb.append(Integer.toString(msg.arg2)); 2635 break; 2636 } 2637 2638 return sb.toString(); 2639 } 2640 2641 private void handleScreenStateChanged(boolean screenOn) { 2642 mScreenOn = screenOn; 2643 if (mVerboseLoggingEnabled) { 2644 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 2645 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 2646 + " state " + getCurrentState().getName() 2647 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 2648 } 2649 enableRssiPolling(screenOn); 2650 if (mUserWantsSuspendOpt.get()) { 2651 int shouldReleaseWakeLock = 0; 2652 if (screenOn) { 2653 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, shouldReleaseWakeLock); 2654 } else { 2655 if (isConnected()) { 2656 // Allow 2s for suspend optimizations to be set 2657 mSuspendWakeLock.acquire(2000); 2658 shouldReleaseWakeLock = 1; 2659 } 2660 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, shouldReleaseWakeLock); 2661 } 2662 } 2663 2664 getWifiLinkLayerStats(); 2665 mOnTimeScreenStateChange = mOnTime; 2666 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 2667 2668 mWifiMetrics.setScreenState(screenOn); 2669 2670 if (mWifiConnectivityManager != null) { 2671 mWifiConnectivityManager.handleScreenStateChanged(screenOn); 2672 } 2673 2674 if (mVerboseLoggingEnabled) log("handleScreenStateChanged Exit: " + screenOn); 2675 } 2676 2677 private void checkAndSetConnectivityInstance() { 2678 if (mCm == null) { 2679 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2680 } 2681 } 2682 2683 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 2684 if (mVerboseLoggingEnabled) { 2685 log("setSuspendOptimizationsNative: " + reason + " " + enabled 2686 + " -want " + mUserWantsSuspendOpt.get() 2687 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2688 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2689 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2690 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2691 } 2692 //mWifiNative.setSuspendOptimizations(enabled); 2693 2694 if (enabled) { 2695 mSuspendOptNeedsDisabled &= ~reason; 2696 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 2697 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 2698 if (mVerboseLoggingEnabled) { 2699 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 2700 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2701 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2702 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2703 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2704 } 2705 mWifiNative.setSuspendOptimizations(true); 2706 } 2707 } else { 2708 mSuspendOptNeedsDisabled |= reason; 2709 mWifiNative.setSuspendOptimizations(false); 2710 } 2711 } 2712 2713 private void setSuspendOptimizations(int reason, boolean enabled) { 2714 if (mVerboseLoggingEnabled) log("setSuspendOptimizations: " + reason + " " + enabled); 2715 if (enabled) { 2716 mSuspendOptNeedsDisabled &= ~reason; 2717 } else { 2718 mSuspendOptNeedsDisabled |= reason; 2719 } 2720 if (mVerboseLoggingEnabled) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2721 } 2722 2723 private void setWifiState(int wifiState) { 2724 final int previousWifiState = mWifiState.get(); 2725 2726 try { 2727 if (wifiState == WIFI_STATE_ENABLED) { 2728 mBatteryStats.noteWifiOn(); 2729 } else if (wifiState == WIFI_STATE_DISABLED) { 2730 mBatteryStats.noteWifiOff(); 2731 } 2732 } catch (RemoteException e) { 2733 loge("Failed to note battery stats in wifi"); 2734 } 2735 2736 mWifiState.set(wifiState); 2737 2738 if (mVerboseLoggingEnabled) log("setWifiState: " + syncGetWifiStateByName()); 2739 2740 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 2741 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2742 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 2743 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 2744 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2745 } 2746 2747 private void setWifiApState(int wifiApState, int reason) { 2748 final int previousWifiApState = mWifiApState.get(); 2749 2750 try { 2751 if (wifiApState == WIFI_AP_STATE_ENABLED) { 2752 mBatteryStats.noteWifiOn(); 2753 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 2754 mBatteryStats.noteWifiOff(); 2755 } 2756 } catch (RemoteException e) { 2757 loge("Failed to note battery stats in wifi"); 2758 } 2759 2760 // Update state 2761 mWifiApState.set(wifiApState); 2762 2763 if (mVerboseLoggingEnabled) log("setWifiApState: " + syncGetWifiApStateByName()); 2764 2765 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 2766 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2767 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 2768 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 2769 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 2770 //only set reason number when softAP start failed 2771 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 2772 } 2773 2774 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2775 } 2776 2777 private void setScanResults() { 2778 mNumScanResultsKnown = 0; 2779 mNumScanResultsReturned = 0; 2780 2781 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 2782 2783 if (scanResults.isEmpty()) { 2784 mScanResults = new ArrayList<>(); 2785 return; 2786 } 2787 2788 // TODO(b/31065385): mWifiConfigManager.trimANQPCache(false); 2789 2790 boolean connected = mLastBssid != null; 2791 long activeBssid = 0L; 2792 if (connected) { 2793 try { 2794 activeBssid = Utils.parseMac(mLastBssid); 2795 } catch (IllegalArgumentException iae) { 2796 connected = false; 2797 } 2798 } 2799 2800 synchronized (mScanResultsLock) { 2801 mScanResults = scanResults; 2802 mNumScanResultsReturned = mScanResults.size(); 2803 } 2804 2805 if (isLinkDebouncing()) { 2806 // If debouncing, we dont re-select a SSID or BSSID hence 2807 // there is no need to call the network selection code 2808 // in WifiAutoJoinController, instead, 2809 // just try to reconnect to the same SSID by triggering a roam 2810 // The third parameter 1 means roam not from network selection but debouncing 2811 sendMessage(CMD_START_ROAM, mLastNetworkId, 1, null); 2812 } 2813 } 2814 2815 /* 2816 * Fetch RSSI, linkspeed, and frequency on current connection 2817 */ 2818 private void fetchRssiLinkSpeedAndFrequencyNative() { 2819 Integer newRssi = null; 2820 Integer newLinkSpeed = null; 2821 Integer newFrequency = null; 2822 WifiNative.SignalPollResult pollResult = mWifiNative.signalPoll(); 2823 if (pollResult == null) { 2824 return; 2825 } 2826 2827 newRssi = pollResult.currentRssi; 2828 newLinkSpeed = pollResult.txBitrate; 2829 newFrequency = pollResult.associationFrequency; 2830 2831 if (mVerboseLoggingEnabled) { 2832 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 2833 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 2834 } 2835 2836 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 2837 // screen out invalid values 2838 /* some implementations avoid negative values by adding 256 2839 * so we need to adjust for that here. 2840 */ 2841 if (newRssi > 0) newRssi -= 256; 2842 mWifiInfo.setRssi(newRssi); 2843 /* 2844 * Log the rssi poll value in metrics 2845 */ 2846 mWifiMetrics.incrementRssiPollRssiCount(newRssi); 2847 /* 2848 * Rather then sending the raw RSSI out every time it 2849 * changes, we precalculate the signal level that would 2850 * be displayed in the status bar, and only send the 2851 * broadcast if that much more coarse-grained number 2852 * changes. This cuts down greatly on the number of 2853 * broadcasts, at the cost of not informing others 2854 * interested in RSSI of all the changes in signal 2855 * level. 2856 */ 2857 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 2858 if (newSignalLevel != mLastSignalLevel) { 2859 updateCapabilities(getCurrentWifiConfiguration()); 2860 sendRssiChangeBroadcast(newRssi); 2861 } 2862 mLastSignalLevel = newSignalLevel; 2863 } else { 2864 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 2865 updateCapabilities(getCurrentWifiConfiguration()); 2866 } 2867 2868 if (newLinkSpeed != null) { 2869 mWifiInfo.setLinkSpeed(newLinkSpeed); 2870 } 2871 if (newFrequency != null && newFrequency > 0) { 2872 if (ScanResult.is5GHz(newFrequency)) { 2873 mWifiConnectionStatistics.num5GhzConnected++; 2874 } 2875 if (ScanResult.is24GHz(newFrequency)) { 2876 mWifiConnectionStatistics.num24GhzConnected++; 2877 } 2878 mWifiInfo.setFrequency(newFrequency); 2879 } 2880 mWifiConfigManager.updateScanDetailCacheFromWifiInfo(mWifiInfo); 2881 } 2882 2883 // Polling has completed, hence we wont have a score anymore 2884 private void cleanWifiScore() { 2885 mWifiInfo.txBadRate = 0; 2886 mWifiInfo.txSuccessRate = 0; 2887 mWifiInfo.txRetriesRate = 0; 2888 mWifiInfo.rxSuccessRate = 0; 2889 mWifiScoreReport.reset(); 2890 } 2891 2892 private void updateLinkProperties(LinkProperties newLp) { 2893 if (mVerboseLoggingEnabled) { 2894 log("Link configuration changed for netId: " + mLastNetworkId 2895 + " old: " + mLinkProperties + " new: " + newLp); 2896 } 2897 // We own this instance of LinkProperties because IpManager passes us a copy. 2898 mLinkProperties = newLp; 2899 if (mNetworkAgent != null) { 2900 mNetworkAgent.sendLinkProperties(mLinkProperties); 2901 } 2902 2903 if (getNetworkDetailedState() == DetailedState.CONNECTED) { 2904 // If anything has changed and we're already connected, send out a notification. 2905 // TODO: Update all callers to use NetworkCallbacks and delete this. 2906 sendLinkConfigurationChangedBroadcast(); 2907 } 2908 2909 if (mVerboseLoggingEnabled) { 2910 StringBuilder sb = new StringBuilder(); 2911 sb.append("updateLinkProperties nid: " + mLastNetworkId); 2912 sb.append(" state: " + getNetworkDetailedState()); 2913 2914 if (mLinkProperties != null) { 2915 sb.append(" "); 2916 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2917 } 2918 logd(sb.toString()); 2919 } 2920 } 2921 2922 /** 2923 * Clears all our link properties. 2924 */ 2925 private void clearLinkProperties() { 2926 // Clear the link properties obtained from DHCP. The only caller of this 2927 // function has already called IpManager#stop(), which clears its state. 2928 synchronized (mDhcpResultsLock) { 2929 if (mDhcpResults != null) { 2930 mDhcpResults.clear(); 2931 } 2932 } 2933 2934 // Now clear the merged link properties. 2935 mLinkProperties.clear(); 2936 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 2937 } 2938 2939 /** 2940 * try to update default route MAC address. 2941 */ 2942 private String updateDefaultRouteMacAddress(int timeout) { 2943 String address = null; 2944 for (RouteInfo route : mLinkProperties.getRoutes()) { 2945 if (route.isDefaultRoute() && route.hasGateway()) { 2946 InetAddress gateway = route.getGateway(); 2947 if (gateway instanceof Inet4Address) { 2948 if (mVerboseLoggingEnabled) { 2949 logd("updateDefaultRouteMacAddress found Ipv4 default :" 2950 + gateway.getHostAddress()); 2951 } 2952 address = macAddressFromRoute(gateway.getHostAddress()); 2953 /* The gateway's MAC address is known */ 2954 if ((address == null) && (timeout > 0)) { 2955 boolean reachable = false; 2956 TrafficStats.setThreadStatsTag(TrafficStats.TAG_SYSTEM_PROBE); 2957 try { 2958 reachable = gateway.isReachable(timeout); 2959 } catch (Exception e) { 2960 loge("updateDefaultRouteMacAddress exception reaching :" 2961 + gateway.getHostAddress()); 2962 2963 } finally { 2964 TrafficStats.clearThreadStatsTag(); 2965 if (reachable == true) { 2966 2967 address = macAddressFromRoute(gateway.getHostAddress()); 2968 if (mVerboseLoggingEnabled) { 2969 logd("updateDefaultRouteMacAddress reachable (tried again) :" 2970 + gateway.getHostAddress() + " found " + address); 2971 } 2972 } 2973 } 2974 } 2975 if (address != null) { 2976 mWifiConfigManager.setNetworkDefaultGwMacAddress(mLastNetworkId, address); 2977 } 2978 } 2979 } 2980 } 2981 return address; 2982 } 2983 2984 private void sendRssiChangeBroadcast(final int newRssi) { 2985 try { 2986 mBatteryStats.noteWifiRssiChanged(newRssi); 2987 } catch (RemoteException e) { 2988 // Won't happen. 2989 } 2990 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 2991 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2992 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 2993 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2994 } 2995 2996 private void sendNetworkStateChangeBroadcast(String bssid) { 2997 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 2998 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2999 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 3000 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3001 if (bssid != null) 3002 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 3003 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 3004 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 3005 // We no longer report MAC address to third-parties and our code does 3006 // not rely on this broadcast, so just send the default MAC address. 3007 fetchRssiLinkSpeedAndFrequencyNative(); 3008 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 3009 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3010 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 3011 } 3012 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3013 } 3014 3015 private WifiInfo getWiFiInfoForUid(int uid) { 3016 if (Binder.getCallingUid() == Process.myUid()) { 3017 return mWifiInfo; 3018 } 3019 3020 WifiInfo result = new WifiInfo(mWifiInfo); 3021 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3022 3023 IBinder binder = mFacade.getService("package"); 3024 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 3025 3026 try { 3027 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 3028 uid) == PackageManager.PERMISSION_GRANTED) { 3029 result.setMacAddress(mWifiInfo.getMacAddress()); 3030 } 3031 } catch (RemoteException e) { 3032 Log.e(TAG, "Error checking receiver permission", e); 3033 } 3034 3035 return result; 3036 } 3037 3038 private void sendLinkConfigurationChangedBroadcast() { 3039 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 3040 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3041 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3042 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3043 } 3044 3045 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 3046 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 3047 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3048 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 3049 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3050 } 3051 3052 /** 3053 * Record the detailed state of a network. 3054 * 3055 * @param state the new {@code DetailedState} 3056 */ 3057 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 3058 boolean hidden = false; 3059 3060 if (isLinkDebouncing() || isRoaming()) { 3061 // There is generally a confusion in the system about colluding 3062 // WiFi Layer 2 state (as reported by supplicant) and the Network state 3063 // which leads to multiple confusion. 3064 // 3065 // If link is de-bouncing or roaming, we already have an IP address 3066 // as well we were connected and are doing L2 cycles of 3067 // reconnecting or renewing IP address to check that we still have it 3068 // This L2 link flapping should ne be reflected into the Network state 3069 // which is the state of the WiFi Network visible to Layer 3 and applications 3070 // Note that once debouncing and roaming are completed, we will 3071 // set the Network state to where it should be, or leave it as unchanged 3072 // 3073 hidden = true; 3074 } 3075 if (mVerboseLoggingEnabled) { 3076 log("setDetailed state, old =" 3077 + mNetworkInfo.getDetailedState() + " and new state=" + state 3078 + " hidden=" + hidden); 3079 } 3080 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 3081 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 3082 // Always indicate that SSID has changed 3083 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 3084 if (mVerboseLoggingEnabled) { 3085 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 3086 } 3087 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 3088 sendNetworkStateChangeBroadcast(null); 3089 } 3090 } 3091 if (hidden == true) { 3092 return false; 3093 } 3094 3095 if (state != mNetworkInfo.getDetailedState()) { 3096 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 3097 if (mNetworkAgent != null) { 3098 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3099 } 3100 sendNetworkStateChangeBroadcast(null); 3101 return true; 3102 } 3103 return false; 3104 } 3105 3106 private DetailedState getNetworkDetailedState() { 3107 return mNetworkInfo.getDetailedState(); 3108 } 3109 3110 private SupplicantState handleSupplicantStateChange(Message message) { 3111 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 3112 SupplicantState state = stateChangeResult.state; 3113 // Supplicant state change 3114 // [31-13] Reserved for future use 3115 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 3116 // 50023 supplicant_state_changed (custom|1|5) 3117 mWifiInfo.setSupplicantState(state); 3118 // If we receive a supplicant state change with an empty SSID, 3119 // this implies that wpa_supplicant is already disconnected. 3120 // We should pretend we are still connected when linkDebouncing is on. 3121 if ((stateChangeResult.wifiSsid == null 3122 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) { 3123 return state; 3124 } 3125 // Network id is only valid when we start connecting 3126 if (SupplicantState.isConnecting(state)) { 3127 mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId)); 3128 } else { 3129 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 3130 } 3131 3132 mWifiInfo.setBSSID(stateChangeResult.BSSID); 3133 3134 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 3135 WifiConfiguration config = getCurrentWifiConfiguration(); 3136 if (config != null) { 3137 // Set meteredHint to true if the access network type of the connecting/connected AP 3138 // is a chargeable public network. 3139 ScanDetailCache scanDetailCache = mWifiConfigManager.getScanDetailCacheForNetwork( 3140 config.networkId); 3141 if (scanDetailCache != null) { 3142 ScanDetail scanDetail = scanDetailCache.getScanDetail(stateChangeResult.BSSID); 3143 if (scanDetail != null) { 3144 NetworkDetail networkDetail = scanDetail.getNetworkDetail(); 3145 if (networkDetail != null 3146 && networkDetail.getAnt() == NetworkDetail.Ant.ChargeablePublic) { 3147 mWifiInfo.setMeteredHint(true); 3148 } 3149 } 3150 } 3151 3152 mWifiInfo.setEphemeral(config.ephemeral); 3153 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3154 mWifiInfo.setMeteredHint(config.meteredHint); 3155 } 3156 } 3157 3158 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 3159 3160 return state; 3161 } 3162 3163 /** 3164 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 3165 * using the interface, stopping DHCP & disabling interface 3166 */ 3167 private void handleNetworkDisconnect() { 3168 if (mVerboseLoggingEnabled) { 3169 log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 3170 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3171 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3172 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3173 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3174 } 3175 3176 stopRssiMonitoringOffload(); 3177 3178 clearTargetBssid("handleNetworkDisconnect"); 3179 3180 stopIpManager(); 3181 3182 /* Reset data structures */ 3183 mWifiScoreReport.reset(); 3184 mWifiInfo.reset(); 3185 mIsLinkDebouncing = false; 3186 /* Reset roaming parameters */ 3187 mAutoRoaming = false; 3188 3189 setNetworkDetailedState(DetailedState.DISCONNECTED); 3190 if (mNetworkAgent != null) { 3191 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3192 mNetworkAgent = null; 3193 } 3194 3195 /* Clear network properties */ 3196 clearLinkProperties(); 3197 3198 /* Cend event to CM & network change broadcast */ 3199 sendNetworkStateChangeBroadcast(mLastBssid); 3200 3201 mLastBssid = null; 3202 registerDisconnected(); 3203 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 3204 } 3205 3206 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 3207 /* Socket connection can be lost when we do a graceful shutdown 3208 * or when the driver is hung. Ensure supplicant is stopped here. 3209 */ 3210 if (killSupplicant) { 3211 mWifiMonitor.stopAllMonitoring(); 3212 if (!mWifiNative.disableSupplicant()) { 3213 loge("Failed to disable supplicant after connection loss"); 3214 } 3215 } 3216 mWifiNative.closeSupplicantConnection(); 3217 sendSupplicantConnectionChangedBroadcast(false); 3218 setWifiState(WIFI_STATE_DISABLED); 3219 } 3220 3221 void handlePreDhcpSetup() { 3222 if (!mBluetoothConnectionActive) { 3223 /* 3224 * There are problems setting the Wi-Fi driver's power 3225 * mode to active when bluetooth coexistence mode is 3226 * enabled or sense. 3227 * <p> 3228 * We set Wi-Fi to active mode when 3229 * obtaining an IP address because we've found 3230 * compatibility issues with some routers with low power 3231 * mode. 3232 * <p> 3233 * In order for this active power mode to properly be set, 3234 * we disable coexistence mode until we're done with 3235 * obtaining an IP address. One exception is if we 3236 * are currently connected to a headset, since disabling 3237 * coexistence would interrupt that connection. 3238 */ 3239 // Disable the coexistence mode 3240 mWifiNative.setBluetoothCoexistenceMode( 3241 WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 3242 } 3243 3244 // Disable power save and suspend optimizations during DHCP 3245 // Note: The order here is important for now. Brcm driver changes 3246 // power settings when we control suspend mode optimizations. 3247 // TODO: Remove this comment when the driver is fixed. 3248 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 3249 mWifiNative.setPowerSave(false); 3250 3251 // Update link layer stats 3252 getWifiLinkLayerStats(); 3253 3254 if (mWifiP2pChannel != null) { 3255 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 3256 Message msg = new Message(); 3257 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 3258 msg.arg1 = WifiP2pServiceImpl.ENABLED; 3259 msg.arg2 = DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE; 3260 msg.obj = WifiStateMachine.this; 3261 mWifiP2pChannel.sendMessage(msg); 3262 } else { 3263 // If the p2p service is not running, we can proceed directly. 3264 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE); 3265 } 3266 } 3267 3268 void handlePostDhcpSetup() { 3269 /* Restore power save and suspend optimizations */ 3270 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 3271 mWifiNative.setPowerSave(true); 3272 3273 p2pSendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, WifiP2pServiceImpl.DISABLED); 3274 3275 // Set the coexistence mode back to its default value 3276 mWifiNative.setBluetoothCoexistenceMode( 3277 WifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 3278 } 3279 3280 private static final long DIAGS_CONNECT_TIMEOUT_MILLIS = 60 * 1000; 3281 private long mDiagsConnectionStartMillis = -1; 3282 /** 3283 * Inform other components that a new connection attempt is starting. 3284 */ 3285 private void reportConnectionAttemptStart( 3286 WifiConfiguration config, String targetBSSID, int roamType) { 3287 mWifiMetrics.startConnectionEvent(config, targetBSSID, roamType); 3288 mDiagsConnectionStartMillis = mClock.getElapsedSinceBootMillis(); 3289 mWifiDiagnostics.reportConnectionEvent( 3290 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_STARTED); 3291 // TODO(b/35329124): Remove CMD_DIAGS_CONNECT_TIMEOUT, once WifiStateMachine 3292 // grows a proper CONNECTING state. 3293 sendMessageDelayed(CMD_DIAGS_CONNECT_TIMEOUT, 3294 mDiagsConnectionStartMillis, DIAGS_CONNECT_TIMEOUT_MILLIS); 3295 } 3296 3297 /** 3298 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3299 * has concluded. 3300 */ 3301 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3302 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3303 switch (level2FailureCode) { 3304 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3305 // Ideally, we'd wait until IP reachability has been confirmed. this code falls 3306 // short in two ways: 3307 // - at the time of the CMD_IP_CONFIGURATION_SUCCESSFUL event, we don't know if we 3308 // actually have ARP reachability. it might be better to wait until the wifi 3309 // network has been validated by IpManager. 3310 // - in the case of a roaming event (intra-SSID), we probably trigger when L2 is 3311 // complete. 3312 // 3313 // TODO(b/34181219): Fix the above. 3314 mWifiDiagnostics.reportConnectionEvent( 3315 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_SUCCEEDED); 3316 break; 3317 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3318 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3319 // WifiDiagnostics doesn't care about pre-empted connections, or cases 3320 // where we failed to initiate a connection attempt with supplicant. 3321 break; 3322 default: 3323 mWifiDiagnostics.reportConnectionEvent( 3324 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_FAILED); 3325 } 3326 mDiagsConnectionStartMillis = -1; 3327 } 3328 3329 private void handleIPv4Success(DhcpResults dhcpResults) { 3330 if (mVerboseLoggingEnabled) { 3331 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3332 logd("link address " + dhcpResults.ipAddress); 3333 } 3334 3335 Inet4Address addr; 3336 synchronized (mDhcpResultsLock) { 3337 mDhcpResults = dhcpResults; 3338 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3339 } 3340 3341 if (isRoaming()) { 3342 int previousAddress = mWifiInfo.getIpAddress(); 3343 int newAddress = NetworkUtils.inetAddressToInt(addr); 3344 if (previousAddress != newAddress) { 3345 logd("handleIPv4Success, roaming and address changed" + 3346 mWifiInfo + " got: " + addr); 3347 } 3348 } 3349 mWifiInfo.setInetAddress(addr); 3350 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3351 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3352 updateCapabilities(getCurrentWifiConfiguration()); 3353 } 3354 } 3355 3356 private void handleSuccessfulIpConfiguration() { 3357 mLastSignalLevel = -1; // Force update of signal strength 3358 WifiConfiguration c = getCurrentWifiConfiguration(); 3359 if (c != null) { 3360 // Reset IP failure tracking 3361 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3362 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3363 3364 // Tell the framework whether the newly connected network is trusted or untrusted. 3365 updateCapabilities(c); 3366 } 3367 if (c != null) { 3368 ScanResult result = getCurrentScanResult(); 3369 if (result == null) { 3370 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3371 c.configKey()); 3372 } else { 3373 // Clear the per BSSID failure count 3374 result.numIpConfigFailures = 0; 3375 } 3376 } 3377 } 3378 3379 private void handleIPv4Failure() { 3380 // TODO: Move this to provisioning failure, not DHCP failure. 3381 // DHCPv4 failure is expected on an IPv6-only network. 3382 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3383 if (mVerboseLoggingEnabled) { 3384 int count = -1; 3385 WifiConfiguration config = getCurrentWifiConfiguration(); 3386 if (config != null) { 3387 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3388 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3389 } 3390 log("DHCP failure count=" + count); 3391 } 3392 reportConnectionAttemptEnd( 3393 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3394 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3395 synchronized(mDhcpResultsLock) { 3396 if (mDhcpResults != null) { 3397 mDhcpResults.clear(); 3398 } 3399 } 3400 if (mVerboseLoggingEnabled) { 3401 logd("handleIPv4Failure"); 3402 } 3403 } 3404 3405 private void handleIpConfigurationLost() { 3406 mWifiInfo.setInetAddress(null); 3407 mWifiInfo.setMeteredHint(false); 3408 3409 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3410 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3411 3412 /* DHCP times out after about 30 seconds, we do a 3413 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3414 */ 3415 mWifiNative.disconnect(); 3416 } 3417 3418 // TODO: De-duplicated this and handleIpConfigurationLost(). 3419 private void handleIpReachabilityLost() { 3420 mWifiInfo.setInetAddress(null); 3421 mWifiInfo.setMeteredHint(false); 3422 3423 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3424 3425 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3426 mWifiNative.disconnect(); 3427 } 3428 3429 /* 3430 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3431 * so as to record MAC address of default gateway. 3432 **/ 3433 private String macAddressFromRoute(String ipAddress) { 3434 String macAddress = null; 3435 BufferedReader reader = null; 3436 try { 3437 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3438 3439 // Skip over the line bearing colum titles 3440 String line = reader.readLine(); 3441 3442 while ((line = reader.readLine()) != null) { 3443 String[] tokens = line.split("[ ]+"); 3444 if (tokens.length < 6) { 3445 continue; 3446 } 3447 3448 // ARP column format is 3449 // Address HWType HWAddress Flags Mask IFace 3450 String ip = tokens[0]; 3451 String mac = tokens[3]; 3452 3453 if (ipAddress.equals(ip)) { 3454 macAddress = mac; 3455 break; 3456 } 3457 } 3458 3459 if (macAddress == null) { 3460 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3461 "/proc/net/arp"); 3462 } 3463 3464 } catch (FileNotFoundException e) { 3465 loge("Could not open /proc/net/arp to lookup mac address"); 3466 } catch (IOException e) { 3467 loge("Could not read /proc/net/arp to lookup mac address"); 3468 } finally { 3469 try { 3470 if (reader != null) { 3471 reader.close(); 3472 } 3473 } catch (IOException e) { 3474 // Do nothing 3475 } 3476 } 3477 return macAddress; 3478 3479 } 3480 3481 private class WifiNetworkFactory extends NetworkFactory { 3482 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 3483 super(l, c, TAG, f); 3484 } 3485 3486 @Override 3487 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3488 synchronized (mWifiReqCountLock) { 3489 if (++mConnectionReqCount == 1) { 3490 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3491 mWifiConnectivityManager.enable(true); 3492 } 3493 } 3494 } 3495 } 3496 3497 @Override 3498 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3499 synchronized (mWifiReqCountLock) { 3500 if (--mConnectionReqCount == 0) { 3501 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3502 mWifiConnectivityManager.enable(false); 3503 } 3504 } 3505 } 3506 } 3507 3508 @Override 3509 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3510 pw.println("mConnectionReqCount " + mConnectionReqCount); 3511 } 3512 3513 } 3514 3515 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3516 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3517 super(l, c, tag, f); 3518 } 3519 3520 @Override 3521 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3522 if (!networkRequest.networkCapabilities.hasCapability( 3523 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3524 synchronized (mWifiReqCountLock) { 3525 if (++mUntrustedReqCount == 1) { 3526 if (mWifiConnectivityManager != null) { 3527 if (mConnectionReqCount == 0) { 3528 mWifiConnectivityManager.enable(true); 3529 } 3530 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3531 } 3532 } 3533 } 3534 } 3535 } 3536 3537 @Override 3538 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3539 if (!networkRequest.networkCapabilities.hasCapability( 3540 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3541 synchronized (mWifiReqCountLock) { 3542 if (--mUntrustedReqCount == 0) { 3543 if (mWifiConnectivityManager != null) { 3544 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3545 if (mConnectionReqCount == 0) { 3546 mWifiConnectivityManager.enable(false); 3547 } 3548 } 3549 } 3550 } 3551 } 3552 } 3553 3554 @Override 3555 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3556 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3557 } 3558 } 3559 3560 void maybeRegisterNetworkFactory() { 3561 if (mNetworkFactory == null) { 3562 checkAndSetConnectivityInstance(); 3563 if (mCm != null) { 3564 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3565 NETWORKTYPE, mNetworkCapabilitiesFilter); 3566 mNetworkFactory.setScoreFilter(60); 3567 mNetworkFactory.register(); 3568 3569 // We can't filter untrusted network in the capabilities filter because a trusted 3570 // network would still satisfy a request that accepts untrusted ones. 3571 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3572 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3573 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3574 mUntrustedNetworkFactory.register(); 3575 } 3576 } 3577 } 3578 3579 /** 3580 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3581 * method allows WifiStateMachine to get these additional system services. 3582 * 3583 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3584 */ 3585 private void getAdditionalWifiServiceInterfaces() { 3586 // First set up Wifi Direct 3587 if (mP2pSupported) { 3588 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3589 WifiP2pServiceImpl wifiP2pServiceImpl = 3590 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3591 3592 if (wifiP2pServiceImpl != null) { 3593 mWifiP2pChannel = new AsyncChannel(); 3594 mWifiP2pChannel.connect(mContext, getHandler(), 3595 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3596 } 3597 } 3598 } 3599 3600 /******************************************************** 3601 * HSM states 3602 *******************************************************/ 3603 3604 class DefaultState extends State { 3605 3606 @Override 3607 public boolean processMessage(Message message) { 3608 logStateAndMessage(message, this); 3609 3610 switch (message.what) { 3611 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3612 AsyncChannel ac = (AsyncChannel) message.obj; 3613 if (ac == mWifiP2pChannel) { 3614 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3615 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3616 // since the p2p channel is connected, we should enable p2p if we are in 3617 // connect mode. We may not be in connect mode yet, we may have just 3618 // set the operational mode and started to set up for connect mode. 3619 if (mOperationalMode == CONNECT_MODE) { 3620 // This message will only be handled if we are in Connect mode. 3621 // If we are not in connect mode yet, this will be dropped and the 3622 // ConnectMode.enter method will call to enable p2p. 3623 sendMessage(CMD_ENABLE_P2P); 3624 } 3625 } else { 3626 // TODO: We should probably do some cleanup or attempt a retry 3627 // b/34283611 3628 loge("WifiP2pService connection failure, error=" + message.arg1); 3629 } 3630 } else { 3631 loge("got HALF_CONNECTED for unknown channel"); 3632 } 3633 break; 3634 } 3635 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3636 AsyncChannel ac = (AsyncChannel) message.obj; 3637 if (ac == mWifiP2pChannel) { 3638 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3639 //TODO: Re-establish connection to state machine after a delay (b/34283611) 3640 // mWifiP2pChannel.connect(mContext, getHandler(), 3641 // mWifiP2pManager.getMessenger()); 3642 } 3643 break; 3644 } 3645 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3646 mBluetoothConnectionActive = (message.arg1 != 3647 BluetoothAdapter.STATE_DISCONNECTED); 3648 break; 3649 /* Synchronous call returns */ 3650 case CMD_PING_SUPPLICANT: 3651 case CMD_ENABLE_NETWORK: 3652 case CMD_ADD_OR_UPDATE_NETWORK: 3653 case CMD_SAVE_CONFIG: 3654 replyToMessage(message, message.what, FAILURE); 3655 break; 3656 case CMD_REMOVE_NETWORK: 3657 deleteNetworkConfigAndSendReply(message, false); 3658 break; 3659 case CMD_GET_CONFIGURED_NETWORKS: 3660 replyToMessage(message, message.what, mWifiConfigManager.getSavedNetworks()); 3661 break; 3662 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3663 replyToMessage(message, message.what, 3664 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 3665 break; 3666 case CMD_ENABLE_RSSI_POLL: 3667 mEnableRssiPolling = (message.arg1 == 1); 3668 break; 3669 case CMD_SET_HIGH_PERF_MODE: 3670 if (message.arg1 == 1) { 3671 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3672 } else { 3673 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3674 } 3675 break; 3676 case CMD_INITIALIZE: 3677 boolean ok = mWifiNative.initializeVendorHal(); 3678 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 3679 break; 3680 case CMD_BOOT_COMPLETED: 3681 // get other services that we need to manage 3682 getAdditionalWifiServiceInterfaces(); 3683 if (!mWifiConfigManager.loadFromStore()) { 3684 Log.e(TAG, "Failed to load from config store"); 3685 } 3686 maybeRegisterNetworkFactory(); 3687 break; 3688 case CMD_SCREEN_STATE_CHANGED: 3689 handleScreenStateChanged(message.arg1 != 0); 3690 break; 3691 /* Discard */ 3692 case CMD_START_SCAN: 3693 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3694 break; 3695 case CMD_START_SUPPLICANT: 3696 case CMD_STOP_SUPPLICANT: 3697 case CMD_STOP_SUPPLICANT_FAILED: 3698 case CMD_DRIVER_START_TIMED_OUT: 3699 case CMD_START_AP: 3700 case CMD_START_AP_FAILURE: 3701 case CMD_STOP_AP: 3702 case CMD_AP_STOPPED: 3703 case CMD_DISCONNECT: 3704 case CMD_RECONNECT: 3705 case CMD_REASSOCIATE: 3706 case CMD_RELOAD_TLS_AND_RECONNECT: 3707 case WifiMonitor.SUP_CONNECTION_EVENT: 3708 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3709 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3710 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3711 case WifiMonitor.SCAN_RESULTS_EVENT: 3712 case WifiMonitor.SCAN_FAILED_EVENT: 3713 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3714 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3715 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3716 case WifiMonitor.WPS_OVERLAP_EVENT: 3717 case CMD_SET_OPERATIONAL_MODE: 3718 case CMD_RSSI_POLL: 3719 case DhcpClient.CMD_PRE_DHCP_ACTION: 3720 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3721 case DhcpClient.CMD_POST_DHCP_ACTION: 3722 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3723 case CMD_ENABLE_P2P: 3724 case CMD_DISABLE_P2P_RSP: 3725 case WifiMonitor.SUP_REQUEST_IDENTITY: 3726 case CMD_TEST_NETWORK_DISCONNECT: 3727 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3728 case CMD_TARGET_BSSID: 3729 case CMD_START_CONNECT: 3730 case CMD_START_ROAM: 3731 case CMD_ASSOCIATED_BSSID: 3732 case CMD_UNWANTED_NETWORK: 3733 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3734 case CMD_ROAM_WATCHDOG_TIMER: 3735 case CMD_DISABLE_EPHEMERAL_NETWORK: 3736 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3737 break; 3738 case CMD_SET_SUSPEND_OPT_ENABLED: 3739 if (message.arg1 == 1) { 3740 if (message.arg2 == 1) { 3741 mSuspendWakeLock.release(); 3742 } 3743 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3744 } else { 3745 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3746 } 3747 break; 3748 case WifiMonitor.DRIVER_HUNG_EVENT: 3749 setSupplicantRunning(false); 3750 setSupplicantRunning(true); 3751 break; 3752 case WifiManager.CONNECT_NETWORK: 3753 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3754 WifiManager.BUSY); 3755 break; 3756 case WifiManager.FORGET_NETWORK: 3757 deleteNetworkConfigAndSendReply(message, true); 3758 break; 3759 case WifiManager.SAVE_NETWORK: 3760 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3761 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3762 WifiManager.BUSY); 3763 break; 3764 case WifiManager.START_WPS: 3765 replyToMessage(message, WifiManager.WPS_FAILED, 3766 WifiManager.BUSY); 3767 break; 3768 case WifiManager.CANCEL_WPS: 3769 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3770 WifiManager.BUSY); 3771 break; 3772 case WifiManager.DISABLE_NETWORK: 3773 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3774 WifiManager.BUSY); 3775 break; 3776 case WifiManager.RSSI_PKTCNT_FETCH: 3777 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3778 WifiManager.BUSY); 3779 break; 3780 case CMD_GET_SUPPORTED_FEATURES: 3781 int featureSet = mWifiNative.getSupportedFeatureSet(); 3782 replyToMessage(message, message.what, featureSet); 3783 break; 3784 case CMD_FIRMWARE_ALERT: 3785 if (mWifiDiagnostics != null) { 3786 byte[] buffer = (byte[])message.obj; 3787 int alertReason = message.arg1; 3788 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3789 mWifiMetrics.incrementAlertReasonCount(alertReason); 3790 } 3791 break; 3792 case CMD_GET_LINK_LAYER_STATS: 3793 // Not supported hence reply with error message 3794 replyToMessage(message, message.what, null); 3795 break; 3796 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3797 NetworkInfo info = (NetworkInfo) message.obj; 3798 mP2pConnected.set(info.isConnected()); 3799 break; 3800 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3801 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3802 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3803 break; 3804 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3805 case CMD_UPDATE_LINKPROPERTIES: 3806 updateLinkProperties((LinkProperties) message.obj); 3807 break; 3808 case CMD_GET_MATCHING_CONFIG: 3809 replyToMessage(message, message.what); 3810 break; 3811 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3812 case CMD_IP_CONFIGURATION_LOST: 3813 case CMD_IP_REACHABILITY_LOST: 3814 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3815 break; 3816 case CMD_GET_CONNECTION_STATISTICS: 3817 replyToMessage(message, message.what, mWifiConnectionStatistics); 3818 break; 3819 case CMD_REMOVE_APP_CONFIGURATIONS: 3820 deferMessage(message); 3821 break; 3822 case CMD_REMOVE_USER_CONFIGURATIONS: 3823 deferMessage(message); 3824 break; 3825 case CMD_START_IP_PACKET_OFFLOAD: 3826 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3827 message.arg1, 3828 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3829 break; 3830 case CMD_STOP_IP_PACKET_OFFLOAD: 3831 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3832 message.arg1, 3833 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3834 break; 3835 case CMD_START_RSSI_MONITORING_OFFLOAD: 3836 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3837 break; 3838 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3839 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3840 break; 3841 case CMD_USER_SWITCH: 3842 Set<Integer> removedNetworkIds = 3843 mWifiConfigManager.handleUserSwitch(message.arg1); 3844 if (removedNetworkIds.contains(mTargetNetworkId) || 3845 removedNetworkIds.contains(mLastNetworkId)) { 3846 // Disconnect and let autojoin reselect a new network 3847 sendMessage(CMD_DISCONNECT); 3848 } 3849 break; 3850 case CMD_USER_UNLOCK: 3851 mWifiConfigManager.handleUserUnlock(message.arg1); 3852 break; 3853 case CMD_USER_STOP: 3854 mWifiConfigManager.handleUserStop(message.arg1); 3855 break; 3856 case CMD_QUERY_OSU_ICON: 3857 case CMD_MATCH_PROVIDER_NETWORK: 3858 /* reply with arg1 = 0 - it returns API failure to the calling app 3859 * (message.what is not looked at) 3860 */ 3861 replyToMessage(message, message.what); 3862 break; 3863 case CMD_RESET_SIM_NETWORKS: 3864 /* Defer this message until supplicant is started. */ 3865 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3866 deferMessage(message); 3867 break; 3868 case CMD_INSTALL_PACKET_FILTER: 3869 mWifiNative.installPacketFilter((byte[]) message.obj); 3870 break; 3871 case CMD_SET_FALLBACK_PACKET_FILTERING: 3872 if ((boolean) message.obj) { 3873 mWifiNative.startFilteringMulticastV4Packets(); 3874 } else { 3875 mWifiNative.stopFilteringMulticastV4Packets(); 3876 } 3877 break; 3878 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3879 // We have lost contact with a client interface, which means that we cannot 3880 // trust that the driver is up or that the interface is ready. We are fit 3881 // for no WiFi related work. 3882 transitionTo(mInitialState); 3883 break; 3884 case CMD_DIAGS_CONNECT_TIMEOUT: 3885 mWifiDiagnostics.reportConnectionEvent( 3886 (Long) message.obj, BaseWifiDiagnostics.CONNECTION_EVENT_FAILED); 3887 break; 3888 default: 3889 loge("Error! unhandled message" + message); 3890 break; 3891 } 3892 return HANDLED; 3893 } 3894 } 3895 3896 class InitialState extends State { 3897 3898 private void cleanup() { 3899 // Tearing down the client interfaces below is going to stop our supplicant. 3900 mWifiMonitor.stopAllMonitoring(); 3901 3902 mDeathRecipient.unlinkToDeath(); 3903 mWifiNative.tearDownInterfaces(); 3904 3905 mWifiNative.stopHal(); 3906 } 3907 3908 @Override 3909 public void enter() { 3910 mWifiStateTracker.updateState(WifiStateTracker.INVALID); 3911 cleanup(); 3912 } 3913 3914 @Override 3915 public boolean processMessage(Message message) { 3916 logStateAndMessage(message, this); 3917 switch (message.what) { 3918 case CMD_START_SUPPLICANT: 3919 mClientInterface = mWifiNative.setupDriverForClientMode(); 3920 if (mClientInterface == null 3921 || !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3922 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3923 cleanup(); 3924 break; 3925 } 3926 3927 try { 3928 // A runtime crash or shutting down AP mode can leave 3929 // IP addresses configured, and this affects 3930 // connectivity when supplicant starts up. 3931 // Ensure we have no IP addresses before a supplicant start. 3932 mNwService.clearInterfaceAddresses(mInterfaceName); 3933 3934 // Set privacy extensions 3935 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 3936 3937 // IPv6 is enabled only as long as access point is connected since: 3938 // - IPv6 addresses and routes stick around after disconnection 3939 // - kernel is unaware when connected and fails to start IPv6 negotiation 3940 // - kernel can start autoconfiguration when 802.1x is not complete 3941 mNwService.disableIpv6(mInterfaceName); 3942 } catch (RemoteException re) { 3943 loge("Unable to change interface settings: " + re); 3944 } catch (IllegalStateException ie) { 3945 loge("Unable to change interface settings: " + ie); 3946 } 3947 3948 if (!mWifiNative.enableSupplicant()) { 3949 loge("Failed to start supplicant!"); 3950 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3951 cleanup(); 3952 break; 3953 } 3954 setSupplicantLogLevel(); 3955 setWifiState(WIFI_STATE_ENABLING); 3956 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 3957 mWifiMonitor.startMonitoring(mInterfaceName); 3958 transitionTo(mSupplicantStartingState); 3959 break; 3960 case CMD_START_AP: 3961 transitionTo(mSoftApState); 3962 break; 3963 case CMD_SET_OPERATIONAL_MODE: 3964 mOperationalMode = message.arg1; 3965 if (mOperationalMode != DISABLED_MODE) { 3966 sendMessage(CMD_START_SUPPLICANT); 3967 } 3968 break; 3969 default: 3970 return NOT_HANDLED; 3971 } 3972 return HANDLED; 3973 } 3974 } 3975 3976 class SupplicantStartingState extends State { 3977 private void initializeWpsDetails() { 3978 String detail; 3979 detail = mPropertyService.get("ro.product.name", ""); 3980 if (!mWifiNative.setDeviceName(detail)) { 3981 loge("Failed to set device name " + detail); 3982 } 3983 detail = mPropertyService.get("ro.product.manufacturer", ""); 3984 if (!mWifiNative.setManufacturer(detail)) { 3985 loge("Failed to set manufacturer " + detail); 3986 } 3987 detail = mPropertyService.get("ro.product.model", ""); 3988 if (!mWifiNative.setModelName(detail)) { 3989 loge("Failed to set model name " + detail); 3990 } 3991 detail = mPropertyService.get("ro.product.model", ""); 3992 if (!mWifiNative.setModelNumber(detail)) { 3993 loge("Failed to set model number " + detail); 3994 } 3995 detail = mPropertyService.get("ro.serialno", ""); 3996 if (!mWifiNative.setSerialNumber(detail)) { 3997 loge("Failed to set serial number " + detail); 3998 } 3999 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4000 loge("Failed to set WPS config methods"); 4001 } 4002 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4003 loge("Failed to set primary device type " + mPrimaryDeviceType); 4004 } 4005 } 4006 4007 @Override 4008 public boolean processMessage(Message message) { 4009 logStateAndMessage(message, this); 4010 4011 switch(message.what) { 4012 case WifiMonitor.SUP_CONNECTION_EVENT: 4013 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4014 4015 mSupplicantRestartCount = 0; 4016 /* Reset the supplicant state to indicate the supplicant 4017 * state is not known at this time */ 4018 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4019 /* Initialize data structures */ 4020 mLastBssid = null; 4021 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4022 mLastSignalLevel = -1; 4023 4024 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4025 // Attempt to migrate data out of legacy store. 4026 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4027 Log.e(TAG, "Failed to migrate from legacy config store"); 4028 } 4029 initializeWpsDetails(); 4030 sendSupplicantConnectionChangedBroadcast(true); 4031 transitionTo(mSupplicantStartedState); 4032 break; 4033 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4034 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4035 loge("Failed to setup control channel, restart supplicant"); 4036 mWifiMonitor.stopAllMonitoring(); 4037 mWifiNative.disableSupplicant(); 4038 transitionTo(mInitialState); 4039 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4040 } else { 4041 loge("Failed " + mSupplicantRestartCount + 4042 " times to start supplicant, unload driver"); 4043 mSupplicantRestartCount = 0; 4044 setWifiState(WIFI_STATE_UNKNOWN); 4045 transitionTo(mInitialState); 4046 } 4047 break; 4048 case CMD_START_SUPPLICANT: 4049 case CMD_STOP_SUPPLICANT: 4050 case CMD_START_AP: 4051 case CMD_STOP_AP: 4052 case CMD_SET_OPERATIONAL_MODE: 4053 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4054 deferMessage(message); 4055 break; 4056 default: 4057 return NOT_HANDLED; 4058 } 4059 return HANDLED; 4060 } 4061 } 4062 4063 class SupplicantStartedState extends State { 4064 @Override 4065 public void enter() { 4066 if (mVerboseLoggingEnabled) { 4067 logd("SupplicantStartedState enter"); 4068 } 4069 4070 mWifiNative.setExternalSim(true); 4071 4072 /* turn on use of DFS channels */ 4073 mWifiNative.setDfsFlag(true); 4074 4075 setRandomMacOui(); 4076 mCountryCode.setReadyForChange(true); 4077 4078 // We can't do this in the constructor because WifiStateMachine is created before the 4079 // wifi scanning service is initialized 4080 if (mWifiScanner == null) { 4081 mWifiScanner = mWifiInjector.getWifiScanner(); 4082 4083 synchronized (mWifiReqCountLock) { 4084 mWifiConnectivityManager = 4085 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4086 hasConnectionRequests()); 4087 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4088 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4089 } 4090 } 4091 4092 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4093 mIsRunning = true; 4094 updateBatteryWorkSource(null); 4095 /** 4096 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4097 * When this mode is on, some of the low-level scan parameters used by the 4098 * driver are changed to reduce interference with bluetooth 4099 */ 4100 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4101 // initialize network state 4102 setNetworkDetailedState(DetailedState.DISCONNECTED); 4103 4104 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4105 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4106 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4107 // IpManager.Callback.setFallbackMulticastFilter() 4108 mWifiNative.stopFilteringMulticastV4Packets(); 4109 mWifiNative.stopFilteringMulticastV6Packets(); 4110 4111 if (mOperationalMode == SCAN_ONLY_MODE || 4112 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4113 mWifiNative.disconnect(); 4114 setWifiState(WIFI_STATE_DISABLED); 4115 transitionTo(mScanModeState); 4116 } else if (mOperationalMode == CONNECT_MODE) { 4117 4118 // Status pulls in the current supplicant state and network connection state 4119 // events over the monitor connection. This helps framework sync up with 4120 // current supplicant state 4121 // TODO: actually check the supplicant status string and make sure the supplicant 4122 // is in disconnecte4d state. 4123 mWifiNative.status(); 4124 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4125 transitionTo(mDisconnectedState); 4126 } else if (mOperationalMode == DISABLED_MODE) { 4127 transitionTo(mSupplicantStoppingState); 4128 } 4129 4130 // Set the right suspend mode settings 4131 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4132 && mUserWantsSuspendOpt.get()); 4133 4134 mWifiNative.setPowerSave(true); 4135 4136 if (mP2pSupported) { 4137 if (mOperationalMode == CONNECT_MODE) { 4138 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4139 } else { 4140 // P2P state machine starts in disabled state, and is not enabled until 4141 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4142 // keep it disabled. 4143 } 4144 } 4145 4146 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4147 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4148 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4149 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4150 4151 // Enable link layer stats gathering 4152 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4153 } 4154 4155 @Override 4156 public boolean processMessage(Message message) { 4157 logStateAndMessage(message, this); 4158 4159 switch(message.what) { 4160 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4161 if (mP2pSupported) { 4162 transitionTo(mWaitForP2pDisableState); 4163 } else { 4164 transitionTo(mSupplicantStoppingState); 4165 } 4166 break; 4167 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4168 loge("Connection lost, restart supplicant"); 4169 handleSupplicantConnectionLoss(true); 4170 handleNetworkDisconnect(); 4171 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4172 if (mP2pSupported) { 4173 transitionTo(mWaitForP2pDisableState); 4174 } else { 4175 transitionTo(mInitialState); 4176 } 4177 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4178 break; 4179 case CMD_START_SCAN: 4180 // TODO: remove scan request path (b/31445200) 4181 handleScanRequest(message); 4182 break; 4183 case WifiMonitor.SCAN_RESULTS_EVENT: 4184 case WifiMonitor.SCAN_FAILED_EVENT: 4185 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4186 // results are retrieved from WifiScanner (b/31444878) 4187 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4188 setScanResults(); 4189 mIsScanOngoing = false; 4190 mIsFullScanOngoing = false; 4191 if (mBufferedScanMsg.size() > 0) 4192 sendMessage(mBufferedScanMsg.remove()); 4193 break; 4194 case CMD_PING_SUPPLICANT: 4195 // TODO (b/35620640): Remove this command since the API is deprecated. 4196 replyToMessage(message, message.what, FAILURE); 4197 break; 4198 case CMD_START_AP: 4199 /* Cannot start soft AP while in client mode */ 4200 loge("Failed to start soft AP with a running supplicant"); 4201 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4202 break; 4203 case CMD_SET_OPERATIONAL_MODE: 4204 mOperationalMode = message.arg1; 4205 if (mOperationalMode == DISABLED_MODE) { 4206 transitionTo(mSupplicantStoppingState); 4207 } 4208 break; 4209 case CMD_TARGET_BSSID: 4210 // Trying to associate to this BSSID 4211 if (message.obj != null) { 4212 mTargetRoamBSSID = (String) message.obj; 4213 } 4214 break; 4215 case CMD_GET_LINK_LAYER_STATS: 4216 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4217 replyToMessage(message, message.what, stats); 4218 break; 4219 case CMD_RESET_SIM_NETWORKS: 4220 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4221 mWifiConfigManager.resetSimNetworks(); 4222 break; 4223 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4224 mBluetoothConnectionActive = (message.arg1 != 4225 BluetoothAdapter.STATE_DISCONNECTED); 4226 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4227 break; 4228 case CMD_SET_SUSPEND_OPT_ENABLED: 4229 if (message.arg1 == 1) { 4230 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4231 if (message.arg2 == 1) { 4232 mSuspendWakeLock.release(); 4233 } 4234 } else { 4235 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4236 } 4237 break; 4238 case CMD_SET_HIGH_PERF_MODE: 4239 if (message.arg1 == 1) { 4240 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4241 } else { 4242 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4243 } 4244 break; 4245 case CMD_ENABLE_TDLS: 4246 if (message.obj != null) { 4247 String remoteAddress = (String) message.obj; 4248 boolean enable = (message.arg1 == 1); 4249 mWifiNative.startTdls(remoteAddress, enable); 4250 } 4251 break; 4252 case WifiMonitor.ANQP_DONE_EVENT: 4253 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4254 mPasspointManager.notifyANQPDone((AnqpEvent) message.obj); 4255 break; 4256 case CMD_STOP_IP_PACKET_OFFLOAD: { 4257 int slot = message.arg1; 4258 int ret = stopWifiIPPacketOffload(slot); 4259 if (mNetworkAgent != null) { 4260 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4261 } 4262 break; 4263 } 4264 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4265 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4266 mPasspointManager.notifyIconDone((IconEvent) message.obj); 4267 break; 4268 case WifiMonitor.HS20_REMEDIATION_EVENT: 4269 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4270 // monitoring. 4271 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4272 break; 4273 case CMD_CONFIG_ND_OFFLOAD: 4274 final boolean enabled = (message.arg1 > 0); 4275 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4276 break; 4277 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4278 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4279 break; 4280 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4281 final boolean allowed = (message.arg1 > 0); 4282 boolean old_state = mEnableAutoJoinWhenAssociated; 4283 mEnableAutoJoinWhenAssociated = allowed; 4284 if (!old_state && allowed && mScreenOn 4285 && getCurrentState() == mConnectedState) { 4286 mWifiConnectivityManager.forceConnectivityScan(); 4287 } 4288 break; 4289 default: 4290 return NOT_HANDLED; 4291 } 4292 return HANDLED; 4293 } 4294 4295 @Override 4296 public void exit() { 4297 mWifiDiagnostics.stopLogging(); 4298 4299 mIsRunning = false; 4300 updateBatteryWorkSource(null); 4301 mScanResults = new ArrayList<>(); 4302 4303 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4304 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4305 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4306 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4307 mBufferedScanMsg.clear(); 4308 4309 mNetworkInfo.setIsAvailable(false); 4310 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4311 mCountryCode.setReadyForChange(false); 4312 } 4313 } 4314 4315 class SupplicantStoppingState extends State { 4316 @Override 4317 public void enter() { 4318 /* Send any reset commands to supplicant before shutting it down */ 4319 handleNetworkDisconnect(); 4320 4321 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4322 if (suppState == null) suppState = "unknown"; 4323 4324 logd("SupplicantStoppingState: stopSupplicant " 4325 + " init.svc.wpa_supplicant=" + suppState); 4326 mWifiMonitor.stopSupplicant(); 4327 4328 /* Send ourselves a delayed message to indicate failure after a wait time */ 4329 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4330 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4331 setWifiState(WIFI_STATE_DISABLING); 4332 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4333 } 4334 @Override 4335 public boolean processMessage(Message message) { 4336 logStateAndMessage(message, this); 4337 4338 switch(message.what) { 4339 case WifiMonitor.SUP_CONNECTION_EVENT: 4340 loge("Supplicant connection received while stopping"); 4341 break; 4342 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4343 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4344 handleSupplicantConnectionLoss(false); 4345 transitionTo(mInitialState); 4346 break; 4347 case CMD_STOP_SUPPLICANT_FAILED: 4348 if (message.arg1 == mSupplicantStopFailureToken) { 4349 loge("Timed out on a supplicant stop, kill and proceed"); 4350 handleSupplicantConnectionLoss(true); 4351 transitionTo(mInitialState); 4352 } 4353 break; 4354 case CMD_START_SUPPLICANT: 4355 case CMD_STOP_SUPPLICANT: 4356 case CMD_START_AP: 4357 case CMD_STOP_AP: 4358 case CMD_SET_OPERATIONAL_MODE: 4359 deferMessage(message); 4360 break; 4361 default: 4362 return NOT_HANDLED; 4363 } 4364 return HANDLED; 4365 } 4366 } 4367 4368 class WaitForP2pDisableState extends State { 4369 private State mTransitionToState; 4370 @Override 4371 public void enter() { 4372 switch (getCurrentMessage().what) { 4373 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4374 mTransitionToState = mInitialState; 4375 break; 4376 case CMD_STOP_SUPPLICANT: 4377 default: 4378 mTransitionToState = mSupplicantStoppingState; 4379 break; 4380 } 4381 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4382 } 4383 @Override 4384 public boolean processMessage(Message message) { 4385 logStateAndMessage(message, this); 4386 4387 switch(message.what) { 4388 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4389 transitionTo(mTransitionToState); 4390 break; 4391 /* Defer wifi start/shut and driver commands */ 4392 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4393 case CMD_START_SUPPLICANT: 4394 case CMD_STOP_SUPPLICANT: 4395 case CMD_START_AP: 4396 case CMD_STOP_AP: 4397 case CMD_SET_OPERATIONAL_MODE: 4398 case CMD_START_SCAN: 4399 case CMD_DISCONNECT: 4400 case CMD_REASSOCIATE: 4401 case CMD_RECONNECT: 4402 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4403 deferMessage(message); 4404 break; 4405 default: 4406 return NOT_HANDLED; 4407 } 4408 return HANDLED; 4409 } 4410 } 4411 4412 class ScanModeState extends State { 4413 private int mLastOperationMode; 4414 @Override 4415 public void enter() { 4416 mLastOperationMode = mOperationalMode; 4417 mWifiStateTracker.updateState(WifiStateTracker.SCAN_MODE); 4418 } 4419 @Override 4420 public boolean processMessage(Message message) { 4421 logStateAndMessage(message, this); 4422 4423 switch(message.what) { 4424 case CMD_SET_OPERATIONAL_MODE: 4425 if (message.arg1 == CONNECT_MODE) { 4426 mOperationalMode = CONNECT_MODE; 4427 transitionTo(mDisconnectedState); 4428 } else if (message.arg1 == DISABLED_MODE) { 4429 transitionTo(mSupplicantStoppingState); 4430 } 4431 // Nothing to do 4432 break; 4433 // Handle scan. All the connection related commands are 4434 // handled only in ConnectModeState 4435 case CMD_START_SCAN: 4436 handleScanRequest(message); 4437 break; 4438 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4439 SupplicantState state = handleSupplicantStateChange(message); 4440 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4441 break; 4442 default: 4443 return NOT_HANDLED; 4444 } 4445 return HANDLED; 4446 } 4447 } 4448 4449 4450 String smToString(Message message) { 4451 return smToString(message.what); 4452 } 4453 4454 String smToString(int what) { 4455 String s = sSmToString.get(what); 4456 if (s != null) { 4457 return s; 4458 } 4459 switch (what) { 4460 case WifiMonitor.DRIVER_HUNG_EVENT: 4461 s = "DRIVER_HUNG_EVENT"; 4462 break; 4463 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4464 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4465 break; 4466 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4467 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4468 break; 4469 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4470 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4471 break; 4472 case WifiManager.DISABLE_NETWORK: 4473 s = "WifiManager.DISABLE_NETWORK"; 4474 break; 4475 case WifiManager.CONNECT_NETWORK: 4476 s = "CONNECT_NETWORK"; 4477 break; 4478 case WifiManager.SAVE_NETWORK: 4479 s = "SAVE_NETWORK"; 4480 break; 4481 case WifiManager.FORGET_NETWORK: 4482 s = "FORGET_NETWORK"; 4483 break; 4484 case WifiMonitor.SUP_CONNECTION_EVENT: 4485 s = "SUP_CONNECTION_EVENT"; 4486 break; 4487 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4488 s = "SUP_DISCONNECTION_EVENT"; 4489 break; 4490 case WifiMonitor.SCAN_RESULTS_EVENT: 4491 s = "SCAN_RESULTS_EVENT"; 4492 break; 4493 case WifiMonitor.SCAN_FAILED_EVENT: 4494 s = "SCAN_FAILED_EVENT"; 4495 break; 4496 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4497 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4498 break; 4499 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4500 s = "AUTHENTICATION_FAILURE_EVENT"; 4501 break; 4502 case WifiMonitor.SSID_TEMP_DISABLED: 4503 s = "SSID_TEMP_DISABLED"; 4504 break; 4505 case WifiMonitor.SSID_REENABLED: 4506 s = "SSID_REENABLED"; 4507 break; 4508 case WifiMonitor.WPS_SUCCESS_EVENT: 4509 s = "WPS_SUCCESS_EVENT"; 4510 break; 4511 case WifiMonitor.WPS_FAIL_EVENT: 4512 s = "WPS_FAIL_EVENT"; 4513 break; 4514 case WifiMonitor.SUP_REQUEST_IDENTITY: 4515 s = "SUP_REQUEST_IDENTITY"; 4516 break; 4517 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4518 s = "NETWORK_CONNECTION_EVENT"; 4519 break; 4520 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4521 s = "NETWORK_DISCONNECTION_EVENT"; 4522 break; 4523 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4524 s = "ASSOCIATION_REJECTION_EVENT"; 4525 break; 4526 case WifiMonitor.ANQP_DONE_EVENT: 4527 s = "WifiMonitor.ANQP_DONE_EVENT"; 4528 break; 4529 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4530 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4531 break; 4532 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4533 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4534 break; 4535 case WifiMonitor.HS20_REMEDIATION_EVENT: 4536 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4537 break; 4538 case WifiMonitor.GAS_QUERY_START_EVENT: 4539 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4540 break; 4541 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4542 s = "GROUP_CREATING_TIMED_OUT"; 4543 break; 4544 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4545 s = "P2P_CONNECTION_CHANGED"; 4546 break; 4547 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4548 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4549 break; 4550 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4551 s = "P2P.SET_MIRACAST_MODE"; 4552 break; 4553 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4554 s = "P2P.BLOCK_DISCOVERY"; 4555 break; 4556 case WifiManager.CANCEL_WPS: 4557 s = "CANCEL_WPS"; 4558 break; 4559 case WifiManager.CANCEL_WPS_FAILED: 4560 s = "CANCEL_WPS_FAILED"; 4561 break; 4562 case WifiManager.CANCEL_WPS_SUCCEDED: 4563 s = "CANCEL_WPS_SUCCEDED"; 4564 break; 4565 case WifiManager.START_WPS: 4566 s = "START_WPS"; 4567 break; 4568 case WifiManager.START_WPS_SUCCEEDED: 4569 s = "START_WPS_SUCCEEDED"; 4570 break; 4571 case WifiManager.WPS_FAILED: 4572 s = "WPS_FAILED"; 4573 break; 4574 case WifiManager.WPS_COMPLETED: 4575 s = "WPS_COMPLETED"; 4576 break; 4577 case WifiManager.RSSI_PKTCNT_FETCH: 4578 s = "RSSI_PKTCNT_FETCH"; 4579 break; 4580 default: 4581 s = "what:" + Integer.toString(what); 4582 break; 4583 } 4584 return s; 4585 } 4586 4587 void registerConnected() { 4588 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4589 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4590 // On connect, reset wifiScoreReport 4591 mWifiScoreReport.reset(); 4592 } 4593 } 4594 4595 void registerDisconnected() { 4596 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4597 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4598 // We are switching away from this configuration, 4599 // hence record the time we were connected last 4600 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4601 if (config != null) { 4602 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4603 // temporary networks. 4604 if (config.ephemeral || config.isPasspoint()) { 4605 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4606 } 4607 } 4608 } 4609 } 4610 4611 /** 4612 * Returns Wificonfiguration object correponding to the currently connected network, null if 4613 * not connected. 4614 */ 4615 public WifiConfiguration getCurrentWifiConfiguration() { 4616 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4617 return null; 4618 } 4619 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4620 } 4621 4622 ScanResult getCurrentScanResult() { 4623 WifiConfiguration config = getCurrentWifiConfiguration(); 4624 if (config == null) { 4625 return null; 4626 } 4627 String BSSID = mWifiInfo.getBSSID(); 4628 if (BSSID == null) { 4629 BSSID = mTargetRoamBSSID; 4630 } 4631 ScanDetailCache scanDetailCache = 4632 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4633 4634 if (scanDetailCache == null) { 4635 return null; 4636 } 4637 4638 return scanDetailCache.get(BSSID); 4639 } 4640 4641 String getCurrentBSSID() { 4642 if (isLinkDebouncing()) { 4643 return null; 4644 } 4645 return mLastBssid; 4646 } 4647 4648 class ConnectModeState extends State { 4649 4650 @Override 4651 public void enter() { 4652 // Let the system know that wifi is available in client mode. 4653 setWifiState(WIFI_STATE_ENABLED); 4654 4655 mNetworkInfo.setIsAvailable(true); 4656 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4657 4658 // initialize network state 4659 setNetworkDetailedState(DetailedState.DISCONNECTED); 4660 4661 4662 // Inform WifiConnectivityManager that Wifi is enabled 4663 mWifiConnectivityManager.setWifiEnabled(true); 4664 // Inform metrics that Wifi is Enabled (but not yet connected) 4665 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4666 // Inform p2p service that wifi is up and ready when applicable 4667 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4668 } 4669 4670 @Override 4671 public void exit() { 4672 // Let the system know that wifi is not available since we are exiting client mode. 4673 mNetworkInfo.setIsAvailable(false); 4674 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4675 // Inform WifiConnectivityManager that Wifi is disabled 4676 mWifiConnectivityManager.setWifiEnabled(false); 4677 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4678 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4679 } 4680 4681 @Override 4682 public boolean processMessage(Message message) { 4683 WifiConfiguration config; 4684 int netId; 4685 boolean ok; 4686 boolean didDisconnect; 4687 String bssid; 4688 String ssid; 4689 NetworkUpdateResult result; 4690 Set<Integer> removedNetworkIds; 4691 int reasonCode; 4692 logStateAndMessage(message, this); 4693 4694 switch (message.what) { 4695 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4696 mWifiDiagnostics.captureBugReportData( 4697 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4698 didBlackListBSSID = false; 4699 bssid = (String) message.obj; 4700 reasonCode = message.arg2; 4701 if (bssid == null || TextUtils.isEmpty(bssid)) { 4702 // If BSSID is null, use the target roam BSSID 4703 bssid = mTargetRoamBSSID; 4704 } 4705 if (bssid != null) { 4706 // If we have a BSSID, tell configStore to black list it 4707 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4708 reasonCode); 4709 } 4710 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4711 WifiConfiguration.NetworkSelectionStatus 4712 .DISABLED_ASSOCIATION_REJECTION); 4713 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4714 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4715 reportConnectionAttemptEnd( 4716 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4717 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4718 mWifiInjector.getWifiLastResortWatchdog() 4719 .noteConnectionFailureAndTriggerIfNeeded( 4720 getTargetSsid(), bssid, 4721 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4722 break; 4723 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4724 mWifiDiagnostics.captureBugReportData( 4725 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4726 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4727 // In case of wrong password, rely on SSID_TEMP_DISABLE event to update 4728 // the WifiConfigManager 4729 if ((message.arg2 != WifiMonitor.AUTHENTICATION_FAILURE_REASON_WRONG_PSWD) 4730 && (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID)) { 4731 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4732 WifiConfiguration.NetworkSelectionStatus 4733 .DISABLED_AUTHENTICATION_FAILURE); 4734 } 4735 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4736 reportConnectionAttemptEnd( 4737 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4738 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4739 mWifiInjector.getWifiLastResortWatchdog() 4740 .noteConnectionFailureAndTriggerIfNeeded( 4741 getTargetSsid(), mTargetRoamBSSID, 4742 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4743 break; 4744 case WifiMonitor.SSID_TEMP_DISABLED: 4745 netId = lookupFrameworkNetworkId(message.arg1); 4746 Log.e(TAG, "Supplicant SSID temporary disabled:" 4747 + mWifiConfigManager.getConfiguredNetwork(netId)); 4748 mWifiConfigManager.updateNetworkSelectionStatus( 4749 netId, 4750 WifiConfiguration.NetworkSelectionStatus 4751 .DISABLED_AUTHENTICATION_FAILURE); 4752 reportConnectionAttemptEnd( 4753 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4754 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4755 mWifiInjector.getWifiLastResortWatchdog() 4756 .noteConnectionFailureAndTriggerIfNeeded( 4757 getTargetSsid(), mTargetRoamBSSID, 4758 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4759 break; 4760 case WifiMonitor.SSID_REENABLED: 4761 netId = lookupFrameworkNetworkId(message.arg1); 4762 Log.d(TAG, "Supplicant SSID reenable:" 4763 + mWifiConfigManager.getConfiguredNetwork(netId)); 4764 // Do not re-enable it in Quality Network Selection since framework has its own 4765 // Algorithm of disable/enable 4766 break; 4767 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4768 SupplicantState state = handleSupplicantStateChange(message); 4769 // A driver/firmware hang can now put the interface in a down state. 4770 // We detect the interface going down and recover from it 4771 if (!SupplicantState.isDriverActive(state)) { 4772 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4773 handleNetworkDisconnect(); 4774 } 4775 log("Detected an interface down, restart driver"); 4776 // Rely on the fact that this will force us into killing supplicant and then 4777 // restart supplicant from a clean state. 4778 transitionTo(mSupplicantStoppingState); 4779 sendMessage(CMD_START_SUPPLICANT); 4780 break; 4781 } 4782 4783 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4784 // when authentication times out after a successful connection, 4785 // we can figure this from the supplicant state. If supplicant 4786 // state is DISCONNECTED, but the mNetworkInfo says we are not 4787 // disconnected, we need to handle a disconnection 4788 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4789 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4790 if (mVerboseLoggingEnabled) { 4791 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4792 } 4793 handleNetworkDisconnect(); 4794 transitionTo(mDisconnectedState); 4795 } 4796 4797 // If we have COMPLETED a connection to a BSSID, start doing 4798 // DNAv4/DNAv6 -style probing for on-link neighbors of 4799 // interest (e.g. routers); harmless if none are configured. 4800 if (state == SupplicantState.COMPLETED) { 4801 mIpManager.confirmConfiguration(); 4802 } 4803 break; 4804 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4805 if (message.arg1 == 1) { 4806 mWifiNative.disconnect(); 4807 mTemporarilyDisconnectWifi = true; 4808 } else { 4809 mWifiNative.reconnect(); 4810 mTemporarilyDisconnectWifi = false; 4811 } 4812 break; 4813 case CMD_ADD_OR_UPDATE_NETWORK: 4814 config = (WifiConfiguration) message.obj; 4815 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4816 if (!result.isSuccess()) { 4817 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4818 } 4819 replyToMessage(message, message.what, result.getNetworkId()); 4820 break; 4821 case CMD_REMOVE_NETWORK: 4822 if (!deleteNetworkConfigAndSendReply(message, false)) { 4823 // failed to remove the config and caller was notified 4824 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4825 break; 4826 } 4827 // we successfully deleted the network config 4828 netId = message.arg1; 4829 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4830 // Disconnect and let autojoin reselect a new network 4831 sendMessage(CMD_DISCONNECT); 4832 } 4833 break; 4834 case CMD_ENABLE_NETWORK: 4835 boolean disableOthers = message.arg2 == 1; 4836 netId = message.arg1; 4837 if (disableOthers) { 4838 // If the app has all the necessary permissions, this will trigger a connect 4839 // attempt. 4840 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4841 } else { 4842 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4843 } 4844 if (!ok) { 4845 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4846 } 4847 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4848 break; 4849 case WifiManager.DISABLE_NETWORK: 4850 netId = message.arg1; 4851 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4852 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4853 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4854 // Disconnect and let autojoin reselect a new network 4855 sendMessage(CMD_DISCONNECT); 4856 } 4857 } else { 4858 loge("Failed to remove network"); 4859 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4860 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4861 WifiManager.ERROR); 4862 } 4863 break; 4864 case CMD_DISABLE_EPHEMERAL_NETWORK: 4865 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4866 if (config != null) { 4867 if (config.networkId == mTargetNetworkId 4868 || config.networkId == mLastNetworkId) { 4869 // Disconnect and let autojoin reselect a new network 4870 sendMessage(CMD_DISCONNECT); 4871 } 4872 } 4873 break; 4874 case CMD_SAVE_CONFIG: 4875 ok = mWifiConfigManager.saveToStore(true); 4876 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 4877 // Inform the backup manager about a data change 4878 mBackupManagerProxy.notifyDataChanged(); 4879 break; 4880 case WifiMonitor.SUP_REQUEST_IDENTITY: 4881 int supplicantNetworkId = message.arg2; 4882 netId = lookupFrameworkNetworkId(supplicantNetworkId); 4883 boolean identitySent = false; 4884 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 4885 if (targetWificonfiguration != null 4886 && targetWificonfiguration.networkId == netId 4887 && TelephonyUtil.isSimConfig(targetWificonfiguration)) { 4888 String identity = 4889 TelephonyUtil.getSimIdentity(getTelephonyManager(), 4890 targetWificonfiguration); 4891 if (identity != null) { 4892 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 4893 identitySent = true; 4894 } else { 4895 Log.e(TAG, "Unable to retrieve identity from Telephony"); 4896 } 4897 } 4898 if (!identitySent) { 4899 // Supplicant lacks credentials to connect to that network, hence black list 4900 ssid = (String) message.obj; 4901 if (targetWificonfiguration != null && ssid != null 4902 && targetWificonfiguration.SSID != null 4903 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 4904 mWifiConfigManager.updateNetworkSelectionStatus( 4905 targetWificonfiguration.networkId, 4906 WifiConfiguration.NetworkSelectionStatus 4907 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 4908 } 4909 mWifiNative.disconnect(); 4910 } 4911 break; 4912 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 4913 logd("Received SUP_REQUEST_SIM_AUTH"); 4914 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 4915 if (requestData != null) { 4916 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 4917 handleGsmAuthRequest(requestData); 4918 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 4919 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 4920 handle3GAuthRequest(requestData); 4921 } 4922 } else { 4923 loge("Invalid sim auth request"); 4924 } 4925 break; 4926 case CMD_GET_MATCHING_CONFIG: 4927 // TODO(b/31065385) 4928 replyToMessage(message, message.what, null); 4929 break; 4930 case CMD_RECONNECT: 4931 mWifiConnectivityManager.forceConnectivityScan(); 4932 break; 4933 case CMD_REASSOCIATE: 4934 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4935 mWifiNative.reassociate(); 4936 break; 4937 case CMD_RELOAD_TLS_AND_RECONNECT: 4938 if (mWifiConfigManager.needsUnlockedKeyStore()) { 4939 logd("Reconnecting to give a chance to un-connected TLS networks"); 4940 mWifiNative.disconnect(); 4941 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4942 mWifiNative.reconnect(); 4943 } 4944 break; 4945 case CMD_START_ROAM: 4946 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 4947 return HANDLED; 4948 case CMD_START_CONNECT: 4949 /* connect command coming from auto-join */ 4950 netId = message.arg1; 4951 bssid = (String) message.obj; 4952 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 4953 logd("CMD_START_CONNECT sup state " 4954 + mSupplicantStateTracker.getSupplicantStateName() 4955 + " my state " + getCurrentState().getName() 4956 + " nid=" + Integer.toString(netId) 4957 + " roam=" + Boolean.toString(mAutoRoaming)); 4958 if (config == null) { 4959 loge("CMD_START_CONNECT and no config, bail out..."); 4960 break; 4961 } 4962 mTargetNetworkId = netId; 4963 setTargetBssid(config, bssid); 4964 4965 reportConnectionAttemptStart(config, mTargetRoamBSSID, 4966 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 4967 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 4968 if (mWifiNative.connectToNetwork(config, shouldDisconnect)) { 4969 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4970 targetWificonfiguration = config; 4971 mAutoRoaming = false; 4972 if (isRoaming() || isLinkDebouncing()) { 4973 transitionTo(mRoamingState); 4974 } else if (shouldDisconnect) { 4975 transitionTo(mDisconnectingState); 4976 } else { 4977 transitionTo(mDisconnectedState); 4978 } 4979 } else { 4980 loge("CMD_START_CONNECT Failed to start connection to network " + config); 4981 reportConnectionAttemptEnd( 4982 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 4983 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4984 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 4985 WifiManager.ERROR); 4986 break; 4987 } 4988 break; 4989 case CMD_REMOVE_APP_CONFIGURATIONS: 4990 removedNetworkIds = 4991 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 4992 if (removedNetworkIds.contains(mTargetNetworkId) || 4993 removedNetworkIds.contains(mLastNetworkId)) { 4994 // Disconnect and let autojoin reselect a new network. 4995 sendMessage(CMD_DISCONNECT); 4996 } 4997 break; 4998 case CMD_REMOVE_USER_CONFIGURATIONS: 4999 removedNetworkIds = 5000 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5001 if (removedNetworkIds.contains(mTargetNetworkId) || 5002 removedNetworkIds.contains(mLastNetworkId)) { 5003 // Disconnect and let autojoin reselect a new network. 5004 sendMessage(CMD_DISCONNECT); 5005 } 5006 break; 5007 case WifiManager.CONNECT_NETWORK: 5008 /** 5009 * The connect message can contain a network id passed as arg1 on message or 5010 * or a config passed as obj on message. 5011 * For a new network, a config is passed to create and connect. 5012 * For an existing network, a network id is passed 5013 */ 5014 netId = message.arg1; 5015 config = (WifiConfiguration) message.obj; 5016 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5017 // New network addition. 5018 if (config != null) { 5019 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5020 if (!result.isSuccess()) { 5021 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5022 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5023 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5024 WifiManager.ERROR); 5025 break; 5026 } 5027 netId = result.getNetworkId(); 5028 } 5029 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5030 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5031 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5032 WifiManager.NOT_AUTHORIZED); 5033 break; 5034 } 5035 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5036 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5037 break; 5038 case WifiManager.SAVE_NETWORK: 5039 config = (WifiConfiguration) message.obj; 5040 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5041 if (config == null) { 5042 loge("SAVE_NETWORK with null configuration" 5043 + mSupplicantStateTracker.getSupplicantStateName() 5044 + " my state " + getCurrentState().getName()); 5045 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5046 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5047 WifiManager.ERROR); 5048 break; 5049 } 5050 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5051 if (!result.isSuccess()) { 5052 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5053 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5054 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5055 WifiManager.ERROR); 5056 break; 5057 } 5058 netId = result.getNetworkId(); 5059 if (mWifiInfo.getNetworkId() == netId) { 5060 if (result.hasIpChanged()) { 5061 // The currently connection configuration was changed 5062 // We switched from DHCP to static or from static to DHCP, or the 5063 // static IP address has changed. 5064 log("Reconfiguring IP on connection"); 5065 // TODO: clear addresses and disable IPv6 5066 // to simplify obtainingIpState. 5067 transitionTo(mObtainingIpState); 5068 } 5069 if (result.hasProxyChanged()) { 5070 log("Reconfiguring proxy on connection"); 5071 mIpManager.setHttpProxy( 5072 getCurrentWifiConfiguration().getHttpProxy()); 5073 } 5074 } else { 5075 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5076 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5077 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5078 WifiManager.NOT_AUTHORIZED); 5079 break; 5080 } 5081 } 5082 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5083 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5084 break; 5085 case WifiManager.FORGET_NETWORK: 5086 if (!deleteNetworkConfigAndSendReply(message, true)) { 5087 // Caller was notified of failure, nothing else to do 5088 break; 5089 } 5090 // the network was deleted 5091 netId = message.arg1; 5092 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5093 // Disconnect and let autojoin reselect a new network 5094 sendMessage(CMD_DISCONNECT); 5095 } 5096 break; 5097 case WifiManager.START_WPS: 5098 WpsInfo wpsInfo = (WpsInfo) message.obj; 5099 WpsResult wpsResult = new WpsResult(); 5100 switch (wpsInfo.setup) { 5101 case WpsInfo.PBC: 5102 if (mWifiNative.startWpsPbc(wpsInfo.BSSID)) { 5103 wpsResult.status = WpsResult.Status.SUCCESS; 5104 } else { 5105 Log.e(TAG, "Failed to start WPS push button configuration"); 5106 wpsResult.status = WpsResult.Status.FAILURE; 5107 } 5108 break; 5109 case WpsInfo.KEYPAD: 5110 if (mWifiNative.startWpsRegistrar(wpsInfo.BSSID, wpsInfo.pin)) { 5111 wpsResult.status = WpsResult.Status.SUCCESS; 5112 } else { 5113 Log.e(TAG, "Failed to start WPS push button configuration"); 5114 wpsResult.status = WpsResult.Status.FAILURE; 5115 } 5116 break; 5117 case WpsInfo.DISPLAY: 5118 wpsResult.pin = mWifiNative.startWpsPinDisplay(wpsInfo.BSSID); 5119 if (!TextUtils.isEmpty(wpsResult.pin)) { 5120 wpsResult.status = WpsResult.Status.SUCCESS; 5121 } else { 5122 Log.e(TAG, "Failed to start WPS pin method configuration"); 5123 wpsResult.status = WpsResult.Status.FAILURE; 5124 } 5125 break; 5126 default: 5127 wpsResult = new WpsResult(Status.FAILURE); 5128 loge("Invalid setup for WPS"); 5129 break; 5130 } 5131 if (wpsResult.status == Status.SUCCESS) { 5132 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5133 transitionTo(mWpsRunningState); 5134 } else { 5135 loge("Failed to start WPS with config " + wpsInfo.toString()); 5136 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5137 } 5138 break; 5139 case CMD_ASSOCIATED_BSSID: 5140 // This is where we can confirm the connection BSSID. Use it to find the 5141 // right ScanDetail to populate metrics. 5142 String someBssid = (String) message.obj; 5143 if (someBssid != null) { 5144 // Get the ScanDetail associated with this BSSID. 5145 ScanDetailCache scanDetailCache = 5146 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5147 if (scanDetailCache != null) { 5148 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5149 someBssid)); 5150 } 5151 } 5152 return NOT_HANDLED; 5153 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5154 if (mVerboseLoggingEnabled) log("Network connection established"); 5155 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5156 mLastBssid = (String) message.obj; 5157 reasonCode = message.arg2; 5158 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5159 // Currently, the last connected network configuration is left in 5160 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5161 // to it after a config store reload. Hence the old network Id lookups may not 5162 // work, so disconnect the network and let network selector reselect a new 5163 // network. 5164 if (getCurrentWifiConfiguration() != null) { 5165 mWifiInfo.setBSSID(mLastBssid); 5166 mWifiInfo.setNetworkId(mLastNetworkId); 5167 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5168 sendNetworkStateChangeBroadcast(mLastBssid); 5169 transitionTo(mObtainingIpState); 5170 } else { 5171 logw("Connected to unknown networkId " + mLastNetworkId 5172 + ", disconnecting..."); 5173 sendMessage(CMD_DISCONNECT); 5174 } 5175 break; 5176 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5177 // Calling handleNetworkDisconnect here is redundant because we might already 5178 // have called it when leaving L2ConnectedState to go to disconnecting state 5179 // or thru other path 5180 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5181 // if they are valid, and only in this case call handleNEtworkDisconnect, 5182 // TODO: this should be fixed for a L MR release 5183 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5184 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5185 // at the chip etc... 5186 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5187 handleNetworkDisconnect(); 5188 transitionTo(mDisconnectedState); 5189 break; 5190 case CMD_QUERY_OSU_ICON: 5191 mPasspointManager.queryPasspointIcon( 5192 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5193 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5194 break; 5195 case CMD_MATCH_PROVIDER_NETWORK: 5196 // TODO(b/31065385): Passpoint config management. 5197 replyToMessage(message, message.what, 0); 5198 break; 5199 case CMD_ENABLE_P2P: 5200 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 5201 break; 5202 default: 5203 return NOT_HANDLED; 5204 } 5205 return HANDLED; 5206 } 5207 } 5208 5209 private void updateCapabilities(WifiConfiguration config) { 5210 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5211 if (config != null) { 5212 if (config.ephemeral) { 5213 networkCapabilities.removeCapability( 5214 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5215 } else { 5216 networkCapabilities.addCapability( 5217 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5218 } 5219 5220 networkCapabilities.setSignalStrength( 5221 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5222 ? mWifiInfo.getRssi() 5223 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5224 } 5225 5226 if (mWifiInfo.getMeteredHint()) { 5227 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5228 } 5229 5230 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5231 } 5232 5233 private class WifiNetworkAgent extends NetworkAgent { 5234 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5235 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5236 super(l, c, TAG, ni, nc, lp, score, misc); 5237 } 5238 5239 @Override 5240 protected void unwanted() { 5241 // Ignore if we're not the current networkAgent. 5242 if (this != mNetworkAgent) return; 5243 if (mVerboseLoggingEnabled) { 5244 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5245 } 5246 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5247 } 5248 5249 @Override 5250 protected void networkStatus(int status, String redirectUrl) { 5251 if (this != mNetworkAgent) return; 5252 if (status == NetworkAgent.INVALID_NETWORK) { 5253 if (mVerboseLoggingEnabled) { 5254 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5255 + Integer.toString(mWifiInfo.score)); 5256 } 5257 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5258 } else if (status == NetworkAgent.VALID_NETWORK) { 5259 if (mVerboseLoggingEnabled) { 5260 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5261 + Integer.toString(mWifiInfo.score)); 5262 } 5263 doNetworkStatus(status); 5264 } 5265 } 5266 5267 @Override 5268 protected void saveAcceptUnvalidated(boolean accept) { 5269 if (this != mNetworkAgent) return; 5270 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5271 } 5272 5273 @Override 5274 protected void startPacketKeepalive(Message msg) { 5275 WifiStateMachine.this.sendMessage( 5276 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5277 } 5278 5279 @Override 5280 protected void stopPacketKeepalive(Message msg) { 5281 WifiStateMachine.this.sendMessage( 5282 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5283 } 5284 5285 @Override 5286 protected void setSignalStrengthThresholds(int[] thresholds) { 5287 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5288 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5289 // MAX_VALUE at the start/end of the thresholds array if necessary. 5290 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5291 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5292 // re-arm the hardware event. This needs to be done on the state machine thread to 5293 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5294 // sent in the NetworkCapabilities) must be the one received from the hardware event 5295 // received, or we might skip callbacks. 5296 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5297 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5298 if (thresholds.length == 0) { 5299 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5300 mWifiInfo.getRssi()); 5301 return; 5302 } 5303 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5304 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5305 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5306 Arrays.sort(rssiVals); 5307 byte[] rssiRange = new byte[rssiVals.length]; 5308 for (int i = 0; i < rssiVals.length; i++) { 5309 int val = rssiVals[i]; 5310 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5311 rssiRange[i] = (byte) val; 5312 } else { 5313 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5314 + Arrays.toString(rssiVals)); 5315 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5316 mWifiInfo.getRssi()); 5317 return; 5318 } 5319 } 5320 // TODO: Do we quash rssi values in this sorted array which are very close? 5321 mRssiRanges = rssiRange; 5322 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5323 mWifiInfo.getRssi()); 5324 } 5325 5326 @Override 5327 protected void preventAutomaticReconnect() { 5328 if (this != mNetworkAgent) return; 5329 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5330 } 5331 } 5332 5333 void unwantedNetwork(int reason) { 5334 sendMessage(CMD_UNWANTED_NETWORK, reason); 5335 } 5336 5337 void doNetworkStatus(int status) { 5338 sendMessage(CMD_NETWORK_STATUS, status); 5339 } 5340 5341 // rfc4186 & rfc4187: 5342 // create Permanent Identity base on IMSI, 5343 // identity = usernam@realm 5344 // with username = prefix | IMSI 5345 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5346 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5347 String mcc; 5348 String mnc; 5349 String prefix; 5350 5351 if (imsi == null || imsi.isEmpty()) 5352 return ""; 5353 5354 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5355 prefix = "1"; 5356 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5357 prefix = "0"; 5358 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5359 prefix = "6"; 5360 else // not a valide EapMethod 5361 return ""; 5362 5363 /* extract mcc & mnc from mccMnc */ 5364 if (mccMnc != null && !mccMnc.isEmpty()) { 5365 mcc = mccMnc.substring(0, 3); 5366 mnc = mccMnc.substring(3); 5367 if (mnc.length() == 2) 5368 mnc = "0" + mnc; 5369 } else { 5370 // extract mcc & mnc from IMSI, assume mnc size is 3 5371 mcc = imsi.substring(0, 3); 5372 mnc = imsi.substring(3, 6); 5373 } 5374 5375 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5376 } 5377 5378 boolean startScanForConfiguration(WifiConfiguration config) { 5379 if (config == null) 5380 return false; 5381 5382 // We are still seeing a fairly high power consumption triggered by autojoin scans 5383 // Hence do partial scans only for PSK configuration that are roamable since the 5384 // primary purpose of the partial scans is roaming. 5385 // Full badn scans with exponential backoff for the purpose or extended roaming and 5386 // network switching are performed unconditionally. 5387 ScanDetailCache scanDetailCache = 5388 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5389 if (scanDetailCache == null 5390 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5391 || scanDetailCache.size() > 6) { 5392 //return true but to not trigger the scan 5393 return true; 5394 } 5395 Set<Integer> freqs = 5396 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5397 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5398 if (freqs != null && freqs.size() != 0) { 5399 //if (mVerboseLoggingEnabled) { 5400 logd("starting scan for " + config.configKey() + " with " + freqs); 5401 //} 5402 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5403 if (config.hiddenSSID) { 5404 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5405 } 5406 // Call wifi native to start the scan 5407 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5408 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5409 } else { 5410 // used for debug only, mark scan as failed 5411 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5412 } 5413 return true; 5414 } else { 5415 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5416 return false; 5417 } 5418 } 5419 5420 class L2ConnectedState extends State { 5421 @Override 5422 public void enter() { 5423 mRssiPollToken++; 5424 if (mEnableRssiPolling) { 5425 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5426 } 5427 if (mNetworkAgent != null) { 5428 loge("Have NetworkAgent when entering L2Connected"); 5429 setNetworkDetailedState(DetailedState.DISCONNECTED); 5430 } 5431 setNetworkDetailedState(DetailedState.CONNECTING); 5432 5433 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5434 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5435 mLinkProperties, 60, mNetworkMisc); 5436 5437 // We must clear the config BSSID, as the wifi chipset may decide to roam 5438 // from this point on and having the BSSID specified in the network block would 5439 // cause the roam to faile and the device to disconnect 5440 clearTargetBssid("L2ConnectedState"); 5441 mCountryCode.setReadyForChange(false); 5442 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5443 } 5444 5445 @Override 5446 public void exit() { 5447 mIpManager.stop(); 5448 5449 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5450 // Bug: 15347363 5451 // For paranoia's sake, call handleNetworkDisconnect 5452 // only if BSSID is null or last networkId 5453 // is not invalid. 5454 if (mVerboseLoggingEnabled) { 5455 StringBuilder sb = new StringBuilder(); 5456 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5457 if (mLastBssid !=null) { 5458 sb.append(" ").append(mLastBssid); 5459 } 5460 } 5461 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5462 handleNetworkDisconnect(); 5463 } 5464 mCountryCode.setReadyForChange(true); 5465 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5466 } 5467 5468 @Override 5469 public boolean processMessage(Message message) { 5470 logStateAndMessage(message, this); 5471 5472 switch (message.what) { 5473 case DhcpClient.CMD_PRE_DHCP_ACTION: 5474 handlePreDhcpSetup(); 5475 break; 5476 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5477 mIpManager.completedPreDhcpAction(); 5478 break; 5479 case DhcpClient.CMD_POST_DHCP_ACTION: 5480 handlePostDhcpSetup(); 5481 // We advance to mConnectedState because IpManager will also send a 5482 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5483 // which calls updateLinkProperties, which then sends 5484 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5485 // 5486 // In the event of failure, we transition to mDisconnectingState 5487 // similarly--via messages sent back from IpManager. 5488 break; 5489 case CMD_IPV4_PROVISIONING_SUCCESS: { 5490 handleIPv4Success((DhcpResults) message.obj); 5491 sendNetworkStateChangeBroadcast(mLastBssid); 5492 break; 5493 } 5494 case CMD_IPV4_PROVISIONING_FAILURE: { 5495 handleIPv4Failure(); 5496 break; 5497 } 5498 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5499 handleSuccessfulIpConfiguration(); 5500 reportConnectionAttemptEnd( 5501 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5502 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5503 sendConnectedState(); 5504 transitionTo(mConnectedState); 5505 break; 5506 case CMD_IP_CONFIGURATION_LOST: 5507 // Get Link layer stats so that we get fresh tx packet counters. 5508 getWifiLinkLayerStats(); 5509 handleIpConfigurationLost(); 5510 reportConnectionAttemptEnd( 5511 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5512 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5513 transitionTo(mDisconnectingState); 5514 break; 5515 case CMD_IP_REACHABILITY_LOST: 5516 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5517 if (mIpReachabilityDisconnectEnabled) { 5518 handleIpReachabilityLost(); 5519 transitionTo(mDisconnectingState); 5520 } else { 5521 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5522 } 5523 break; 5524 case CMD_DISCONNECT: 5525 mWifiNative.disconnect(); 5526 transitionTo(mDisconnectingState); 5527 break; 5528 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5529 if (message.arg1 == 1) { 5530 mWifiNative.disconnect(); 5531 mTemporarilyDisconnectWifi = true; 5532 transitionTo(mDisconnectingState); 5533 } 5534 break; 5535 case CMD_SET_OPERATIONAL_MODE: 5536 if (message.arg1 != CONNECT_MODE) { 5537 sendMessage(CMD_DISCONNECT); 5538 deferMessage(message); 5539 } 5540 break; 5541 /* Ignore connection to same network */ 5542 case WifiManager.CONNECT_NETWORK: 5543 int netId = message.arg1; 5544 if (mWifiInfo.getNetworkId() == netId) { 5545 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5546 break; 5547 } 5548 return NOT_HANDLED; 5549 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5550 mWifiInfo.setBSSID((String) message.obj); 5551 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5552 mWifiInfo.setNetworkId(mLastNetworkId); 5553 if(!mLastBssid.equals(message.obj)) { 5554 mLastBssid = (String) message.obj; 5555 sendNetworkStateChangeBroadcast(mLastBssid); 5556 } 5557 break; 5558 case CMD_RSSI_POLL: 5559 if (message.arg1 == mRssiPollToken) { 5560 if (mEnableChipWakeUpWhenAssociated) { 5561 if (mVerboseLoggingEnabled) { 5562 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5563 } 5564 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5565 if (stats != null) { 5566 // Sanity check the results provided by driver 5567 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5568 && (stats.rssi_mgmt == 0 5569 || stats.beacon_rx == 0)) { 5570 stats = null; 5571 } 5572 } 5573 // Get Info and continue polling 5574 fetchRssiLinkSpeedAndFrequencyNative(); 5575 // Send the update score to network agent. 5576 mWifiScoreReport.calculateAndReportScore( 5577 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5578 mWifiMetrics); 5579 } 5580 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5581 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5582 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5583 } else { 5584 // Polling has completed 5585 } 5586 break; 5587 case CMD_ENABLE_RSSI_POLL: 5588 cleanWifiScore(); 5589 if (mEnableRssiPollWhenAssociated) { 5590 mEnableRssiPolling = (message.arg1 == 1); 5591 } else { 5592 mEnableRssiPolling = false; 5593 } 5594 mRssiPollToken++; 5595 if (mEnableRssiPolling) { 5596 // First poll 5597 fetchRssiLinkSpeedAndFrequencyNative(); 5598 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5599 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5600 } 5601 break; 5602 case WifiManager.RSSI_PKTCNT_FETCH: 5603 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5604 fetchRssiLinkSpeedAndFrequencyNative(); 5605 info.rssi = mWifiInfo.getRssi(); 5606 WifiNative.TxPacketCounters counters = mWifiNative.getTxPacketCounters(); 5607 if (counters != null) { 5608 info.txgood = counters.txSucceeded; 5609 info.txbad = counters.txFailed; 5610 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5611 } else { 5612 replyToMessage(message, 5613 WifiManager.RSSI_PKTCNT_FETCH_FAILED, WifiManager.ERROR); 5614 } 5615 break; 5616 case CMD_DELAYED_NETWORK_DISCONNECT: 5617 if (!isLinkDebouncing()) { 5618 5619 // Ignore if we are not debouncing 5620 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5621 + message.arg1); 5622 return HANDLED; 5623 } else { 5624 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5625 + message.arg1); 5626 5627 mIsLinkDebouncing = false; 5628 // If we are still debouncing while this message comes, 5629 // it means we were not able to reconnect within the alloted time 5630 // = LINK_FLAPPING_DEBOUNCE_MSEC 5631 // and thus, trigger a real disconnect 5632 handleNetworkDisconnect(); 5633 transitionTo(mDisconnectedState); 5634 } 5635 break; 5636 case CMD_ASSOCIATED_BSSID: 5637 if ((String) message.obj == null) { 5638 logw("Associated command w/o BSSID"); 5639 break; 5640 } 5641 mLastBssid = (String) message.obj; 5642 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5643 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5644 mWifiInfo.setBSSID((String) message.obj); 5645 sendNetworkStateChangeBroadcast(mLastBssid); 5646 } 5647 break; 5648 case CMD_START_RSSI_MONITORING_OFFLOAD: 5649 case CMD_RSSI_THRESHOLD_BREACH: 5650 byte currRssi = (byte) message.arg1; 5651 processRssiThreshold(currRssi, message.what); 5652 break; 5653 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5654 stopRssiMonitoringOffload(); 5655 break; 5656 case CMD_RESET_SIM_NETWORKS: 5657 if (message.arg1 == 0 // sim was removed 5658 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5659 WifiConfiguration config = 5660 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5661 if (TelephonyUtil.isSimConfig(config)) { 5662 mWifiNative.disconnect(); 5663 transitionTo(mDisconnectingState); 5664 } 5665 } 5666 /* allow parent state to reset data for other networks */ 5667 return NOT_HANDLED; 5668 default: 5669 return NOT_HANDLED; 5670 } 5671 5672 return HANDLED; 5673 } 5674 } 5675 5676 class ObtainingIpState extends State { 5677 @Override 5678 public void enter() { 5679 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5680 boolean isUsingStaticIp = 5681 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5682 if (mVerboseLoggingEnabled) { 5683 String key = ""; 5684 if (getCurrentWifiConfiguration() != null) { 5685 key = getCurrentWifiConfiguration().configKey(); 5686 } 5687 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5688 + " " + key + " " 5689 + " roam=" + mAutoRoaming 5690 + " static=" + isUsingStaticIp); 5691 } 5692 5693 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5694 // We might still be roaming 5695 mIsLinkDebouncing = false; 5696 5697 // Send event to CM & network change broadcast 5698 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5699 5700 // We must clear the config BSSID, as the wifi chipset may decide to roam 5701 // from this point on and having the BSSID specified in the network block would 5702 // cause the roam to fail and the device to disconnect. 5703 clearTargetBssid("ObtainingIpAddress"); 5704 5705 // Stop IpManager in case we're switching from DHCP to static 5706 // configuration or vice versa. 5707 // 5708 // TODO: Only ever enter this state the first time we connect to a 5709 // network, never on switching between static configuration and 5710 // DHCP. When we transition from static configuration to DHCP in 5711 // particular, we must tell ConnectivityService that we're 5712 // disconnected, because DHCP might take a long time during which 5713 // connectivity APIs such as getActiveNetworkInfo should not return 5714 // CONNECTED. 5715 stopIpManager(); 5716 5717 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5718 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5719 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5720 } 5721 5722 if (!isUsingStaticIp) { 5723 final IpManager.ProvisioningConfiguration prov = 5724 IpManager.buildProvisioningConfiguration() 5725 .withPreDhcpAction() 5726 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5727 .build(); 5728 mIpManager.startProvisioning(prov); 5729 // Get Link layer stats so as we get fresh tx packet counters 5730 getWifiLinkLayerStats(); 5731 } else { 5732 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5733 if (config.ipAddress == null) { 5734 logd("Static IP lacks address"); 5735 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5736 } else { 5737 final IpManager.ProvisioningConfiguration prov = 5738 IpManager.buildProvisioningConfiguration() 5739 .withStaticConfiguration(config) 5740 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5741 .build(); 5742 mIpManager.startProvisioning(prov); 5743 } 5744 } 5745 } 5746 5747 @Override 5748 public boolean processMessage(Message message) { 5749 logStateAndMessage(message, this); 5750 5751 switch(message.what) { 5752 case CMD_START_CONNECT: 5753 case CMD_START_ROAM: 5754 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5755 break; 5756 case WifiManager.SAVE_NETWORK: 5757 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5758 deferMessage(message); 5759 break; 5760 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5761 reportConnectionAttemptEnd( 5762 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5763 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5764 return NOT_HANDLED; 5765 case CMD_SET_HIGH_PERF_MODE: 5766 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5767 deferMessage(message); 5768 break; 5769 /* Defer scan request since we should not switch to other channels at DHCP */ 5770 case CMD_START_SCAN: 5771 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5772 deferMessage(message); 5773 break; 5774 default: 5775 return NOT_HANDLED; 5776 } 5777 return HANDLED; 5778 } 5779 } 5780 5781 private void sendConnectedState() { 5782 // If this network was explicitly selected by the user, evaluate whether to call 5783 // explicitlySelected() so the system can treat it appropriately. 5784 WifiConfiguration config = getCurrentWifiConfiguration(); 5785 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5786 boolean prompt = 5787 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5788 if (mVerboseLoggingEnabled) { 5789 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5790 } 5791 if (prompt) { 5792 // Selected by the user via Settings or QuickSettings. If this network has Internet 5793 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5794 // really want to switch, or has already confirmed and selected "Don't ask again". 5795 if (mVerboseLoggingEnabled) { 5796 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5797 } 5798 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5799 } 5800 } 5801 5802 setNetworkDetailedState(DetailedState.CONNECTED); 5803 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5804 sendNetworkStateChangeBroadcast(mLastBssid); 5805 } 5806 5807 class RoamingState extends State { 5808 boolean mAssociated; 5809 @Override 5810 public void enter() { 5811 if (mVerboseLoggingEnabled) { 5812 log("RoamingState Enter" 5813 + " mScreenOn=" + mScreenOn ); 5814 } 5815 5816 // Make sure we disconnect if roaming fails 5817 roamWatchdogCount++; 5818 logd("Start Roam Watchdog " + roamWatchdogCount); 5819 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5820 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5821 mAssociated = false; 5822 } 5823 @Override 5824 public boolean processMessage(Message message) { 5825 logStateAndMessage(message, this); 5826 WifiConfiguration config; 5827 switch (message.what) { 5828 case CMD_IP_CONFIGURATION_LOST: 5829 config = getCurrentWifiConfiguration(); 5830 if (config != null) { 5831 mWifiDiagnostics.captureBugReportData( 5832 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5833 } 5834 return NOT_HANDLED; 5835 case CMD_UNWANTED_NETWORK: 5836 if (mVerboseLoggingEnabled) { 5837 log("Roaming and CS doesnt want the network -> ignore"); 5838 } 5839 return HANDLED; 5840 case CMD_SET_OPERATIONAL_MODE: 5841 if (message.arg1 != CONNECT_MODE) { 5842 deferMessage(message); 5843 } 5844 break; 5845 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5846 /** 5847 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5848 * before NETWORK_DISCONNECTION_EVENT 5849 * And there is an associated BSSID corresponding to our target BSSID, then 5850 * we have missed the network disconnection, transition to mDisconnectedState 5851 * and handle the rest of the events there. 5852 */ 5853 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5854 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5855 || stateChangeResult.state == SupplicantState.INACTIVE 5856 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5857 if (mVerboseLoggingEnabled) { 5858 log("STATE_CHANGE_EVENT in roaming state " 5859 + stateChangeResult.toString() ); 5860 } 5861 if (stateChangeResult.BSSID != null 5862 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5863 handleNetworkDisconnect(); 5864 transitionTo(mDisconnectedState); 5865 } 5866 } 5867 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5868 // We completed the layer2 roaming part 5869 mAssociated = true; 5870 if (stateChangeResult.BSSID != null) { 5871 mTargetRoamBSSID = stateChangeResult.BSSID; 5872 } 5873 } 5874 break; 5875 case CMD_ROAM_WATCHDOG_TIMER: 5876 if (roamWatchdogCount == message.arg1) { 5877 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 5878 mWifiMetrics.endConnectionEvent( 5879 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 5880 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5881 mRoamFailCount++; 5882 handleNetworkDisconnect(); 5883 mWifiNative.disconnect(); 5884 transitionTo(mDisconnectedState); 5885 } 5886 break; 5887 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5888 if (mAssociated) { 5889 if (mVerboseLoggingEnabled) { 5890 log("roaming and Network connection established"); 5891 } 5892 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5893 mLastBssid = (String) message.obj; 5894 mWifiInfo.setBSSID(mLastBssid); 5895 mWifiInfo.setNetworkId(mLastNetworkId); 5896 int reasonCode = message.arg2; 5897 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5898 sendNetworkStateChangeBroadcast(mLastBssid); 5899 5900 // Successful framework roam! (probably) 5901 reportConnectionAttemptEnd( 5902 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5903 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5904 5905 // We must clear the config BSSID, as the wifi chipset may decide to roam 5906 // from this point on and having the BSSID specified by QNS would cause 5907 // the roam to fail and the device to disconnect. 5908 // When transition from RoamingState to DisconnectingState or 5909 // DisconnectedState, the config BSSID is cleared by 5910 // handleNetworkDisconnect(). 5911 clearTargetBssid("RoamingCompleted"); 5912 5913 // We used to transition to ObtainingIpState in an 5914 // attempt to do DHCPv4 RENEWs on framework roams. 5915 // DHCP can take too long to time out, and we now rely 5916 // upon IpManager's use of IpReachabilityMonitor to 5917 // confirm our current network configuration. 5918 // 5919 // mIpManager.confirmConfiguration() is called within 5920 // the handling of SupplicantState.COMPLETED. 5921 transitionTo(mConnectedState); 5922 } else { 5923 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5924 } 5925 break; 5926 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5927 // Throw away but only if it corresponds to the network we're roaming to 5928 String bssid = (String) message.obj; 5929 if (true) { 5930 String target = ""; 5931 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 5932 log("NETWORK_DISCONNECTION_EVENT in roaming state" 5933 + " BSSID=" + bssid 5934 + " target=" + target); 5935 } 5936 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 5937 handleNetworkDisconnect(); 5938 transitionTo(mDisconnectedState); 5939 } 5940 break; 5941 case WifiMonitor.SSID_TEMP_DISABLED: 5942 // Auth error while roaming 5943 int netId = lookupFrameworkNetworkId(message.arg1); 5944 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 5945 + " id=" + netId 5946 + " isRoaming=" + isRoaming() 5947 + " roam=" + mAutoRoaming); 5948 if (netId == mLastNetworkId) { 5949 config = getCurrentWifiConfiguration(); 5950 if (config != null) { 5951 mWifiDiagnostics.captureBugReportData( 5952 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5953 } 5954 handleNetworkDisconnect(); 5955 transitionTo(mDisconnectingState); 5956 } 5957 return NOT_HANDLED; 5958 case CMD_START_SCAN: 5959 deferMessage(message); 5960 break; 5961 default: 5962 return NOT_HANDLED; 5963 } 5964 return HANDLED; 5965 } 5966 5967 @Override 5968 public void exit() { 5969 logd("WifiStateMachine: Leaving Roaming state"); 5970 } 5971 } 5972 5973 class ConnectedState extends State { 5974 @Override 5975 public void enter() { 5976 updateDefaultRouteMacAddress(1000); 5977 if (mVerboseLoggingEnabled) { 5978 log("Enter ConnectedState " 5979 + " mScreenOn=" + mScreenOn); 5980 } 5981 5982 mWifiConnectivityManager.handleConnectionStateChanged( 5983 WifiConnectivityManager.WIFI_STATE_CONNECTED); 5984 registerConnected(); 5985 lastConnectAttemptTimestamp = 0; 5986 targetWificonfiguration = null; 5987 // Paranoia 5988 mIsLinkDebouncing = false; 5989 5990 // Not roaming anymore 5991 mAutoRoaming = false; 5992 5993 if (testNetworkDisconnect) { 5994 testNetworkDisconnectCounter++; 5995 logd("ConnectedState Enter start disconnect test " + 5996 testNetworkDisconnectCounter); 5997 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 5998 testNetworkDisconnectCounter, 0), 15000); 5999 } 6000 6001 mLastDriverRoamAttempt = 0; 6002 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6003 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6004 mWifiStateTracker.updateState(WifiStateTracker.CONNECTED); 6005 } 6006 @Override 6007 public boolean processMessage(Message message) { 6008 WifiConfiguration config = null; 6009 logStateAndMessage(message, this); 6010 6011 switch (message.what) { 6012 case CMD_UNWANTED_NETWORK: 6013 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6014 mWifiNative.disconnect(); 6015 transitionTo(mDisconnectingState); 6016 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6017 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6018 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6019 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6020 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6021 config = getCurrentWifiConfiguration(); 6022 if (config != null) { 6023 // Disable autojoin 6024 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6025 mWifiConfigManager.setNetworkValidatedInternetAccess( 6026 config.networkId, false); 6027 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6028 WifiConfiguration.NetworkSelectionStatus 6029 .DISABLED_NO_INTERNET); 6030 } 6031 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6032 config.networkId); 6033 } 6034 } 6035 return HANDLED; 6036 case CMD_NETWORK_STATUS: 6037 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6038 config = getCurrentWifiConfiguration(); 6039 if (config != null) { 6040 // re-enable autojoin 6041 mWifiConfigManager.setNetworkValidatedInternetAccess( 6042 config.networkId, true); 6043 } 6044 } 6045 return HANDLED; 6046 case CMD_ACCEPT_UNVALIDATED: 6047 boolean accept = (message.arg1 != 0); 6048 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6049 return HANDLED; 6050 case CMD_TEST_NETWORK_DISCONNECT: 6051 // Force a disconnect 6052 if (message.arg1 == testNetworkDisconnectCounter) { 6053 mWifiNative.disconnect(); 6054 } 6055 break; 6056 case CMD_ASSOCIATED_BSSID: 6057 // ASSOCIATING to a new BSSID while already connected, indicates 6058 // that driver is roaming 6059 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6060 return NOT_HANDLED; 6061 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6062 long lastRoam = 0; 6063 reportConnectionAttemptEnd( 6064 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6065 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6066 if (mLastDriverRoamAttempt != 0) { 6067 // Calculate time since last driver roam attempt 6068 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6069 mLastDriverRoamAttempt = 0; 6070 } 6071 if (unexpectedDisconnectedReason(message.arg2)) { 6072 mWifiDiagnostics.captureBugReportData( 6073 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6074 } 6075 config = getCurrentWifiConfiguration(); 6076 if (mEnableLinkDebouncing 6077 && mScreenOn 6078 && !isLinkDebouncing() 6079 && config != null 6080 && config.getNetworkSelectionStatus().isNetworkEnabled() 6081 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6082 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6083 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6084 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6085 && mWifiInfo.getRssi() > 6086 mThresholdQualifiedRssi5) 6087 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6088 && mWifiInfo.getRssi() > 6089 mThresholdQualifiedRssi5))) { 6090 // Start de-bouncing the L2 disconnection: 6091 // this L2 disconnection might be spurious. 6092 // Hence we allow 4 seconds for the state machine to try 6093 // to reconnect, go thru the 6094 // roaming cycle and enter Obtaining IP address 6095 // before signalling the disconnect to ConnectivityService and L3 6096 startScanForConfiguration(getCurrentWifiConfiguration()); 6097 mIsLinkDebouncing = true; 6098 6099 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6100 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6101 if (mVerboseLoggingEnabled) { 6102 log("NETWORK_DISCONNECTION_EVENT in connected state" 6103 + " BSSID=" + mWifiInfo.getBSSID() 6104 + " RSSI=" + mWifiInfo.getRssi() 6105 + " freq=" + mWifiInfo.getFrequency() 6106 + " reason=" + message.arg2 6107 + " -> debounce"); 6108 } 6109 return HANDLED; 6110 } else { 6111 if (mVerboseLoggingEnabled) { 6112 log("NETWORK_DISCONNECTION_EVENT in connected state" 6113 + " BSSID=" + mWifiInfo.getBSSID() 6114 + " RSSI=" + mWifiInfo.getRssi() 6115 + " freq=" + mWifiInfo.getFrequency() 6116 + " was debouncing=" + isLinkDebouncing() 6117 + " reason=" + message.arg2 6118 + " Network Selection Status=" + (config == null ? "Unavailable" 6119 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6120 } 6121 } 6122 break; 6123 case CMD_START_ROAM: 6124 // Clear the driver roam indication since we are attempting a framework roam 6125 mLastDriverRoamAttempt = 0; 6126 6127 /* Connect command coming from auto-join */ 6128 int netId = message.arg1; 6129 ScanResult candidate = (ScanResult)message.obj; 6130 String bssid = SUPPLICANT_BSSID_ANY; 6131 if (candidate != null) { 6132 bssid = candidate.BSSID; 6133 } 6134 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6135 if (config == null) { 6136 loge("CMD_START_ROAM and no config, bail out..."); 6137 break; 6138 } 6139 6140 setTargetBssid(config, bssid); 6141 mTargetNetworkId = netId; 6142 6143 logd("CMD_START_ROAM sup state " 6144 + mSupplicantStateTracker.getSupplicantStateName() 6145 + " my state " + getCurrentState().getName() 6146 + " nid=" + Integer.toString(netId) 6147 + " config " + config.configKey() 6148 + " targetRoamBSSID " + mTargetRoamBSSID); 6149 6150 reportConnectionAttemptStart(config, mTargetRoamBSSID, 6151 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6152 if (mWifiNative.roamToNetwork(config)) { 6153 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6154 targetWificonfiguration = config; 6155 mAutoRoaming = true; 6156 transitionTo(mRoamingState); 6157 } else { 6158 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6159 reportConnectionAttemptEnd( 6160 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6161 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6162 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6163 WifiManager.ERROR); 6164 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6165 break; 6166 } 6167 break; 6168 case CMD_START_IP_PACKET_OFFLOAD: { 6169 int slot = message.arg1; 6170 int intervalSeconds = message.arg2; 6171 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6172 byte[] dstMac; 6173 try { 6174 InetAddress gateway = RouteInfo.selectBestRoute( 6175 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6176 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6177 dstMac = NativeUtil.macAddressToByteArray(dstMacStr); 6178 } catch (NullPointerException | IllegalArgumentException e) { 6179 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6180 mNetworkAgent.onPacketKeepaliveEvent(slot, 6181 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6182 break; 6183 } 6184 pkt.dstMac = dstMac; 6185 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6186 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6187 break; 6188 } 6189 default: 6190 return NOT_HANDLED; 6191 } 6192 return HANDLED; 6193 } 6194 6195 @Override 6196 public void exit() { 6197 logd("WifiStateMachine: Leaving Connected state"); 6198 mWifiConnectivityManager.handleConnectionStateChanged( 6199 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6200 6201 mLastDriverRoamAttempt = 0; 6202 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6203 } 6204 } 6205 6206 class DisconnectingState extends State { 6207 6208 @Override 6209 public void enter() { 6210 6211 if (mVerboseLoggingEnabled) { 6212 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6213 } 6214 6215 // Make sure we disconnect: we enter this state prior to connecting to a new 6216 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6217 // event which in this case will be indicating that supplicant started to associate. 6218 // In some cases supplicant doesn't ignore the connect requests (it might not 6219 // find the target SSID in its cache), 6220 // Therefore we end up stuck that state, hence the need for the watchdog. 6221 disconnectingWatchdogCount++; 6222 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6223 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6224 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6225 } 6226 6227 @Override 6228 public boolean processMessage(Message message) { 6229 logStateAndMessage(message, this); 6230 switch (message.what) { 6231 case CMD_SET_OPERATIONAL_MODE: 6232 if (message.arg1 != CONNECT_MODE) { 6233 deferMessage(message); 6234 } 6235 break; 6236 case CMD_START_SCAN: 6237 deferMessage(message); 6238 return HANDLED; 6239 case CMD_DISCONNECT: 6240 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6241 break; 6242 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6243 if (disconnectingWatchdogCount == message.arg1) { 6244 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6245 handleNetworkDisconnect(); 6246 transitionTo(mDisconnectedState); 6247 } 6248 break; 6249 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6250 /** 6251 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6252 * we have missed the network disconnection, transition to mDisconnectedState 6253 * and handle the rest of the events there 6254 */ 6255 deferMessage(message); 6256 handleNetworkDisconnect(); 6257 transitionTo(mDisconnectedState); 6258 break; 6259 default: 6260 return NOT_HANDLED; 6261 } 6262 return HANDLED; 6263 } 6264 } 6265 6266 class DisconnectedState extends State { 6267 @Override 6268 public void enter() { 6269 // We dont scan frequently if this is a temporary disconnect 6270 // due to p2p 6271 if (mTemporarilyDisconnectWifi) { 6272 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6273 return; 6274 } 6275 6276 if (mVerboseLoggingEnabled) { 6277 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6278 } 6279 6280 /** clear the roaming state, if we were roaming, we failed */ 6281 mAutoRoaming = false; 6282 6283 mWifiConnectivityManager.handleConnectionStateChanged( 6284 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6285 6286 /** 6287 * If we have no networks saved, the supplicant stops doing the periodic scan. 6288 * The scans are useful to notify the user of the presence of an open network. 6289 * Note that these are not wake up scans. 6290 */ 6291 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6292 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6293 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6294 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6295 } 6296 6297 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6298 mWifiStateTracker.updateState(WifiStateTracker.DISCONNECTED); 6299 } 6300 @Override 6301 public boolean processMessage(Message message) { 6302 boolean ret = HANDLED; 6303 6304 logStateAndMessage(message, this); 6305 6306 switch (message.what) { 6307 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6308 if (mP2pConnected.get()) break; 6309 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6310 mWifiConfigManager.getSavedNetworks().size() == 0) { 6311 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6312 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6313 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6314 } 6315 break; 6316 case WifiManager.FORGET_NETWORK: 6317 case CMD_REMOVE_NETWORK: 6318 case CMD_REMOVE_APP_CONFIGURATIONS: 6319 case CMD_REMOVE_USER_CONFIGURATIONS: 6320 // Set up a delayed message here. After the forget/remove is handled 6321 // the handled delayed message will determine if there is a need to 6322 // scan and continue 6323 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6324 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6325 ret = NOT_HANDLED; 6326 break; 6327 case CMD_SET_OPERATIONAL_MODE: 6328 if (message.arg1 != CONNECT_MODE) { 6329 mOperationalMode = message.arg1; 6330 if (mOperationalMode == DISABLED_MODE) { 6331 transitionTo(mSupplicantStoppingState); 6332 } else if (mOperationalMode == SCAN_ONLY_MODE 6333 || mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6334 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6335 setWifiState(WIFI_STATE_DISABLED); 6336 transitionTo(mScanModeState); 6337 } 6338 } 6339 break; 6340 case CMD_DISCONNECT: 6341 mWifiNative.disconnect(); 6342 break; 6343 /* Ignore network disconnect */ 6344 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6345 // Interpret this as an L2 connection failure 6346 break; 6347 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6348 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6349 if (mVerboseLoggingEnabled) { 6350 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6351 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6352 + " debouncing=" + isLinkDebouncing()); 6353 } 6354 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6355 /* ConnectModeState does the rest of the handling */ 6356 ret = NOT_HANDLED; 6357 break; 6358 case CMD_START_SCAN: 6359 if (!checkOrDeferScanAllowed(message)) { 6360 // The scan request was rescheduled 6361 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6362 return HANDLED; 6363 } 6364 6365 ret = NOT_HANDLED; 6366 break; 6367 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6368 NetworkInfo info = (NetworkInfo) message.obj; 6369 mP2pConnected.set(info.isConnected()); 6370 if (!mP2pConnected.get() && mWifiConfigManager.getSavedNetworks().size() == 0) { 6371 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6372 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6373 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6374 } 6375 break; 6376 case CMD_RECONNECT: 6377 case CMD_REASSOCIATE: 6378 if (mTemporarilyDisconnectWifi) { 6379 // Drop a third party reconnect/reassociate if STA is 6380 // temporarily disconnected for p2p 6381 break; 6382 } else { 6383 // ConnectModeState handles it 6384 ret = NOT_HANDLED; 6385 } 6386 break; 6387 case CMD_SCREEN_STATE_CHANGED: 6388 handleScreenStateChanged(message.arg1 != 0); 6389 break; 6390 default: 6391 ret = NOT_HANDLED; 6392 } 6393 return ret; 6394 } 6395 6396 @Override 6397 public void exit() { 6398 mWifiConnectivityManager.handleConnectionStateChanged( 6399 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6400 } 6401 } 6402 6403 class WpsRunningState extends State { 6404 // Tracks the source to provide a reply 6405 private Message mSourceMessage; 6406 @Override 6407 public void enter() { 6408 mSourceMessage = Message.obtain(getCurrentMessage()); 6409 } 6410 @Override 6411 public boolean processMessage(Message message) { 6412 logStateAndMessage(message, this); 6413 6414 switch (message.what) { 6415 case WifiMonitor.WPS_SUCCESS_EVENT: 6416 // Ignore intermediate success, wait for full connection 6417 break; 6418 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6419 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6420 mSourceMessage.recycle(); 6421 mSourceMessage = null; 6422 deferMessage(message); 6423 transitionTo(mDisconnectedState); 6424 break; 6425 case WifiMonitor.WPS_OVERLAP_EVENT: 6426 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6427 WifiManager.WPS_OVERLAP_ERROR); 6428 mSourceMessage.recycle(); 6429 mSourceMessage = null; 6430 transitionTo(mDisconnectedState); 6431 break; 6432 case WifiMonitor.WPS_FAIL_EVENT: 6433 // Arg1 has the reason for the failure 6434 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6435 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6436 mSourceMessage.recycle(); 6437 mSourceMessage = null; 6438 transitionTo(mDisconnectedState); 6439 } else { 6440 if (mVerboseLoggingEnabled) { 6441 log("Ignore unspecified fail event during WPS connection"); 6442 } 6443 } 6444 break; 6445 case WifiMonitor.WPS_TIMEOUT_EVENT: 6446 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6447 WifiManager.WPS_TIMED_OUT); 6448 mSourceMessage.recycle(); 6449 mSourceMessage = null; 6450 transitionTo(mDisconnectedState); 6451 break; 6452 case WifiManager.START_WPS: 6453 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6454 break; 6455 case WifiManager.CANCEL_WPS: 6456 if (mWifiNative.cancelWps()) { 6457 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6458 } else { 6459 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6460 } 6461 transitionTo(mDisconnectedState); 6462 break; 6463 /** 6464 * Defer all commands that can cause connections to a different network 6465 * or put the state machine out of connect mode 6466 */ 6467 case CMD_SET_OPERATIONAL_MODE: 6468 case WifiManager.CONNECT_NETWORK: 6469 case CMD_ENABLE_NETWORK: 6470 case CMD_RECONNECT: 6471 case CMD_REASSOCIATE: 6472 deferMessage(message); 6473 break; 6474 case CMD_START_CONNECT: 6475 case CMD_START_ROAM: 6476 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6477 return HANDLED; 6478 case CMD_START_SCAN: 6479 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6480 return HANDLED; 6481 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6482 if (mVerboseLoggingEnabled) log("Network connection lost"); 6483 handleNetworkDisconnect(); 6484 break; 6485 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6486 if (mVerboseLoggingEnabled) { 6487 log("Ignore Assoc reject event during WPS Connection"); 6488 } 6489 break; 6490 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6491 // Disregard auth failure events during WPS connection. The 6492 // EAP sequence is retried several times, and there might be 6493 // failures (especially for wps pin). We will get a WPS_XXX 6494 // event at the end of the sequence anyway. 6495 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6496 break; 6497 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6498 // Throw away supplicant state changes when WPS is running. 6499 // We will start getting supplicant state changes once we get 6500 // a WPS success or failure 6501 break; 6502 default: 6503 return NOT_HANDLED; 6504 } 6505 return HANDLED; 6506 } 6507 6508 @Override 6509 public void exit() { 6510 mWifiConfigManager.loadFromStore(); 6511 } 6512 } 6513 6514 class SoftApState extends State { 6515 private SoftApManager mSoftApManager; 6516 6517 private class SoftApListener implements SoftApManager.Listener { 6518 @Override 6519 public void onStateChanged(int state, int reason) { 6520 if (state == WIFI_AP_STATE_DISABLED) { 6521 sendMessage(CMD_AP_STOPPED); 6522 } else if (state == WIFI_AP_STATE_FAILED) { 6523 sendMessage(CMD_START_AP_FAILURE); 6524 } 6525 6526 setWifiApState(state, reason); 6527 } 6528 } 6529 6530 @Override 6531 public void enter() { 6532 final Message message = getCurrentMessage(); 6533 if (message.what != CMD_START_AP) { 6534 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6535 } 6536 6537 IApInterface apInterface = mWifiNative.setupDriverForSoftApMode(); 6538 if (apInterface == null) { 6539 setWifiApState(WIFI_AP_STATE_FAILED, 6540 WifiManager.SAP_START_FAILURE_GENERAL); 6541 /** 6542 * Transition to InitialState to reset the 6543 * driver/HAL back to the initial state. 6544 */ 6545 transitionTo(mInitialState); 6546 return; 6547 } 6548 6549 WifiConfiguration config = (WifiConfiguration) message.obj; 6550 6551 checkAndSetConnectivityInstance(); 6552 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6553 new SoftApListener(), 6554 apInterface, 6555 config); 6556 mSoftApManager.start(); 6557 mWifiStateTracker.updateState(WifiStateTracker.SOFT_AP); 6558 } 6559 6560 @Override 6561 public void exit() { 6562 mSoftApManager = null; 6563 } 6564 6565 @Override 6566 public boolean processMessage(Message message) { 6567 logStateAndMessage(message, this); 6568 6569 switch(message.what) { 6570 case CMD_START_AP: 6571 /* Ignore start command when it is starting/started. */ 6572 break; 6573 case CMD_STOP_AP: 6574 mSoftApManager.stop(); 6575 break; 6576 case CMD_START_AP_FAILURE: 6577 transitionTo(mInitialState); 6578 break; 6579 case CMD_AP_STOPPED: 6580 transitionTo(mInitialState); 6581 break; 6582 default: 6583 return NOT_HANDLED; 6584 } 6585 return HANDLED; 6586 } 6587 } 6588 6589 /** 6590 * State machine initiated requests can have replyTo set to null indicating 6591 * there are no recepients, we ignore those reply actions. 6592 */ 6593 private void replyToMessage(Message msg, int what) { 6594 if (msg.replyTo == null) return; 6595 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6596 mReplyChannel.replyToMessage(msg, dstMsg); 6597 } 6598 6599 private void replyToMessage(Message msg, int what, int arg1) { 6600 if (msg.replyTo == null) return; 6601 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6602 dstMsg.arg1 = arg1; 6603 mReplyChannel.replyToMessage(msg, dstMsg); 6604 } 6605 6606 private void replyToMessage(Message msg, int what, Object obj) { 6607 if (msg.replyTo == null) return; 6608 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6609 dstMsg.obj = obj; 6610 mReplyChannel.replyToMessage(msg, dstMsg); 6611 } 6612 6613 /** 6614 * arg2 on the source message has a unique id that needs to be retained in replies 6615 * to match the request 6616 * <p>see WifiManager for details 6617 */ 6618 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6619 Message msg = Message.obtain(); 6620 msg.what = what; 6621 msg.arg2 = srcMsg.arg2; 6622 return msg; 6623 } 6624 6625 /** 6626 * Notify interested parties if a wifi config has been changed. 6627 * 6628 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6629 * @param config Must have a WifiConfiguration object to succeed 6630 * TODO: b/35258354 investigate if this can be removed. Is the broadcast sent by 6631 * WifiConfigManager sufficient? 6632 */ 6633 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6634 WifiConfiguration config) { 6635 if (config != null && config.preSharedKey != null) { 6636 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6637 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6638 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6639 wifiCredentialEventType); 6640 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6641 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6642 } 6643 } 6644 6645 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6646 if (targetWificonfiguration == null 6647 || targetWificonfiguration.networkId 6648 == lookupFrameworkNetworkId(requestData.networkId)) { 6649 logd("id matches targetWifiConfiguration"); 6650 } else { 6651 logd("id does not match targetWifiConfiguration"); 6652 return; 6653 } 6654 6655 String response = 6656 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6657 if (response == null) { 6658 mWifiNative.simAuthFailedResponse(requestData.networkId); 6659 } else { 6660 logv("Supplicant Response -" + response); 6661 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6662 } 6663 } 6664 6665 void handle3GAuthRequest(SimAuthRequestData requestData) { 6666 if (targetWificonfiguration == null 6667 || targetWificonfiguration.networkId 6668 == lookupFrameworkNetworkId(requestData.networkId)) { 6669 logd("id matches targetWifiConfiguration"); 6670 } else { 6671 logd("id does not match targetWifiConfiguration"); 6672 return; 6673 } 6674 6675 SimAuthResponseData response = 6676 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6677 if (response != null) { 6678 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6679 } else { 6680 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6681 } 6682 } 6683 6684 /** 6685 * Automatically connect to the network specified 6686 * 6687 * @param networkId ID of the network to connect to 6688 * @param bssid BSSID of the network 6689 */ 6690 public void startConnectToNetwork(int networkId, String bssid) { 6691 synchronized (mWifiReqCountLock) { 6692 if (hasConnectionRequests()) { 6693 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6694 } 6695 } 6696 } 6697 6698 /** 6699 * Automatically roam to the network specified 6700 * 6701 * @param networkId ID of the network to roam to 6702 * @param scanResult scan result which identifies the network to roam to 6703 */ 6704 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6705 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6706 } 6707 6708 /** 6709 * Dynamically turn on/off WifiConnectivityManager 6710 * 6711 * @param enabled true-enable; false-disable 6712 */ 6713 public void enableWifiConnectivityManager(boolean enabled) { 6714 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6715 } 6716 6717 /** 6718 * @param reason reason code from supplicant on network disconnected event 6719 * @return true if this is a suspicious disconnect 6720 */ 6721 static boolean unexpectedDisconnectedReason(int reason) { 6722 return reason == 2 // PREV_AUTH_NOT_VALID 6723 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6724 || reason == 7 // FRAME_FROM_NONASSOC_STA 6725 || reason == 8 // STA_HAS_LEFT 6726 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6727 || reason == 14 // MICHAEL_MIC_FAILURE 6728 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6729 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6730 || reason == 18 // GROUP_CIPHER_NOT_VALID 6731 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6732 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6733 || reason == 34; // DISASSOC_LOW_ACK 6734 } 6735 6736 /** 6737 * Update WifiMetrics before dumping 6738 */ 6739 public void updateWifiMetrics() { 6740 mWifiMetrics.updateSavedNetworks(mWifiConfigManager.getSavedNetworks()); 6741 } 6742 6743 /** 6744 * Private method to handle calling WifiConfigManager to forget/remove network configs and reply 6745 * to the message from the sender of the outcome. 6746 * 6747 * The current implementation requires that forget and remove be handled in different ways 6748 * (responses are handled differently). In the interests of organization, the handling is all 6749 * now in this helper method. TODO: b/35257965 is filed to track the possibility of merging 6750 * the two call paths. 6751 */ 6752 private boolean deleteNetworkConfigAndSendReply(Message message, boolean calledFromForget) { 6753 boolean success = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 6754 if (!success) { 6755 loge("Failed to remove network"); 6756 } 6757 6758 if (calledFromForget) { 6759 if (success) { 6760 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 6761 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 6762 (WifiConfiguration) message.obj); 6763 return true; 6764 } 6765 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, WifiManager.ERROR); 6766 return false; 6767 } else { 6768 // Remaining calls are from the removeNetwork path 6769 if (success) { 6770 replyToMessage(message, message.what, SUCCESS); 6771 return true; 6772 } 6773 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6774 replyToMessage(message, message.what, FAILURE); 6775 return false; 6776 } 6777 } 6778 6779 private static String getLinkPropertiesSummary(LinkProperties lp) { 6780 List<String> attributes = new ArrayList<>(6); 6781 if (lp.hasIPv4Address()) { 6782 attributes.add("v4"); 6783 } 6784 if (lp.hasIPv4DefaultRoute()) { 6785 attributes.add("v4r"); 6786 } 6787 if (lp.hasIPv4DnsServer()) { 6788 attributes.add("v4dns"); 6789 } 6790 if (lp.hasGlobalIPv6Address()) { 6791 attributes.add("v6"); 6792 } 6793 if (lp.hasIPv6DefaultRoute()) { 6794 attributes.add("v6r"); 6795 } 6796 if (lp.hasIPv6DnsServer()) { 6797 attributes.add("v6dns"); 6798 } 6799 6800 return TextUtils.join(" ", attributes); 6801 } 6802 6803 /** 6804 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6805 * This should match the network config framework is attempting to connect to. 6806 */ 6807 private String getTargetSsid() { 6808 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6809 if (currentConfig != null) { 6810 return currentConfig.SSID; 6811 } 6812 return null; 6813 } 6814 6815 private void p2pSendMessage(int what) { 6816 if (mWifiP2pChannel != null) { 6817 mWifiP2pChannel.sendMessage(what); 6818 } 6819 } 6820 6821 private void p2pSendMessage(int what, int arg1) { 6822 if (mWifiP2pChannel != null) { 6823 mWifiP2pChannel.sendMessage(what, arg1); 6824 } 6825 } 6826 6827 /** 6828 * Check if there is any connection request for WiFi network. 6829 * Note, caller of this helper function must acquire mWifiReqCountLock. 6830 */ 6831 private boolean hasConnectionRequests() { 6832 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6833 } 6834 6835 /** 6836 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6837 */ 6838 public boolean getIpReachabilityDisconnectEnabled() { 6839 return mIpReachabilityDisconnectEnabled; 6840 } 6841 6842 /** 6843 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6844 */ 6845 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6846 mIpReachabilityDisconnectEnabled = enabled; 6847 } 6848 6849 /** 6850 * Sends a message to initialize the WifiStateMachine. 6851 * 6852 * @return true if succeeded, false otherwise. 6853 */ 6854 public boolean syncInitialize(AsyncChannel channel) { 6855 Message resultMsg = channel.sendMessageSynchronously(CMD_INITIALIZE); 6856 boolean result = (resultMsg.arg1 != FAILURE); 6857 resultMsg.recycle(); 6858 return result; 6859 } 6860} 6861