WifiStateMachine.java revision 3355eb4392aabfae9453e7d6f11d9f0620bf5dae
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.IconEvent; 110import com.android.server.wifi.hotspot2.NetworkDetail; 111import com.android.server.wifi.hotspot2.PasspointManager; 112import com.android.server.wifi.hotspot2.Utils; 113import com.android.server.wifi.hotspot2.WnmData; 114import com.android.server.wifi.p2p.WifiP2pServiceImpl; 115import com.android.server.wifi.util.TelephonyUtil; 116import com.android.server.wifi.util.TelephonyUtil.SimAuthRequestData; 117import com.android.server.wifi.util.TelephonyUtil.SimAuthResponseData; 118 119import java.io.BufferedReader; 120import java.io.FileDescriptor; 121import java.io.FileNotFoundException; 122import java.io.FileReader; 123import java.io.IOException; 124import java.io.PrintWriter; 125import java.net.Inet4Address; 126import java.net.InetAddress; 127import java.util.ArrayList; 128import java.util.Arrays; 129import java.util.HashSet; 130import java.util.LinkedList; 131import java.util.List; 132import java.util.Queue; 133import java.util.Set; 134import java.util.concurrent.atomic.AtomicBoolean; 135import java.util.concurrent.atomic.AtomicInteger; 136 137/** 138 * TODO: 139 * Deprecate WIFI_STATE_UNKNOWN 140 */ 141 142/** 143 * Track the state of Wifi connectivity. All event handling is done here, 144 * and all changes in connectivity state are initiated here. 145 * 146 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 147 * In the current implementation, we support concurrent wifi p2p and wifi operation. 148 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 149 * handles p2p operation. 150 * 151 * @hide 152 */ 153public class WifiStateMachine extends StateMachine implements WifiNative.WifiRssiEventHandler, 154 WifiMulticastLockManager.FilterController { 155 156 private static final String NETWORKTYPE = "WIFI"; 157 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 158 @VisibleForTesting public static final short NUM_LOG_RECS_NORMAL = 100; 159 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE_LOW_MEMORY = 200; 160 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE = 3000; 161 private static final String TAG = "WifiStateMachine"; 162 163 private static final int ONE_HOUR_MILLI = 1000 * 60 * 60; 164 165 private static final String GOOGLE_OUI = "DA-A1-19"; 166 167 private static final String EXTRA_OSU_ICON_QUERY_BSSID = "BSSID"; 168 private static final String EXTRA_OSU_ICON_QUERY_FILENAME = "FILENAME"; 169 170 private boolean mVerboseLoggingEnabled = false; 171 172 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 173 * the corresponding BSSID. 174 */ 175 private boolean didBlackListBSSID = false; 176 177 /** 178 * Log with error attribute 179 * 180 * @param s is string log 181 */ 182 @Override 183 protected void loge(String s) { 184 Log.e(getName(), s); 185 } 186 @Override 187 protected void logd(String s) { 188 Log.d(getName(), s); 189 } 190 @Override 191 protected void log(String s) { 192 Log.d(getName(), s); 193 } 194 private WifiMetrics mWifiMetrics; 195 private WifiInjector mWifiInjector; 196 private WifiMonitor mWifiMonitor; 197 private WifiNative mWifiNative; 198 private WifiConfigManager mWifiConfigManager; 199 private WifiSupplicantControl mWifiSupplicantControl; 200 private WifiConnectivityManager mWifiConnectivityManager; 201 private WifiNetworkSelector mWifiNetworkSelector; 202 private INetworkManagementService mNwService; 203 private IClientInterface mClientInterface; 204 private ConnectivityManager mCm; 205 private BaseWifiDiagnostics mWifiDiagnostics; 206 private WifiApConfigStore mWifiApConfigStore; 207 private final boolean mP2pSupported; 208 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 209 private boolean mTemporarilyDisconnectWifi = false; 210 private final String mPrimaryDeviceType; 211 private final Clock mClock; 212 private final PropertyService mPropertyService; 213 private final BuildProperties mBuildProperties; 214 private final WifiCountryCode mCountryCode; 215 // Object holding most recent wifi score report and bad Linkspeed count 216 private final WifiScoreReport mWifiScoreReport; 217 private final PasspointManager mPasspointManager; 218 219 /* Scan results handling */ 220 private List<ScanDetail> mScanResults = new ArrayList<>(); 221 private final Object mScanResultsLock = new Object(); 222 223 // For debug, number of known scan results that were found as part of last scan result event, 224 // as well the number of scans results returned by the supplicant with that message 225 private int mNumScanResultsKnown; 226 private int mNumScanResultsReturned; 227 228 private boolean mScreenOn = false; 229 230 private final String mInterfaceName; 231 232 private int mLastSignalLevel = -1; 233 private String mLastBssid; 234 private int mLastNetworkId; // The network Id we successfully joined 235 private boolean mIsLinkDebouncing = false; 236 private final StateMachineDeathRecipient mDeathRecipient = 237 new StateMachineDeathRecipient(this, CMD_CLIENT_INTERFACE_BINDER_DEATH); 238 private boolean mIpReachabilityDisconnectEnabled = true; 239 240 @Override 241 public void onRssiThresholdBreached(byte curRssi) { 242 if (mVerboseLoggingEnabled) { 243 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 244 } 245 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 246 } 247 248 public void processRssiThreshold(byte curRssi, int reason) { 249 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 250 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 251 return; 252 } 253 for (int i = 0; i < mRssiRanges.length; i++) { 254 if (curRssi < mRssiRanges[i]) { 255 // Assume sorted values(ascending order) for rssi, 256 // bounded by high(127) and low(-128) at extremeties 257 byte maxRssi = mRssiRanges[i]; 258 byte minRssi = mRssiRanges[i-1]; 259 // This value of hw has to be believed as this value is averaged and has breached 260 // the rssi thresholds and raised event to host. This would be eggregious if this 261 // value is invalid 262 mWifiInfo.setRssi(curRssi); 263 updateCapabilities(getCurrentWifiConfiguration()); 264 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 265 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 266 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 267 break; 268 } 269 } 270 } 271 272 // Testing various network disconnect cases by sending lots of spurious 273 // disconnect to supplicant 274 private boolean testNetworkDisconnect = false; 275 276 private boolean mEnableRssiPolling = false; 277 private int mRssiPollToken = 0; 278 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 279 * In CONNECT_MODE, the STA can scan and connect to an access point 280 * In SCAN_ONLY_MODE, the STA can only scan for access points 281 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 282 */ 283 private int mOperationalMode = CONNECT_MODE; 284 private boolean mIsScanOngoing = false; 285 private boolean mIsFullScanOngoing = false; 286 287 private final Queue<Message> mBufferedScanMsg = new LinkedList<>(); 288 private static final int UNKNOWN_SCAN_SOURCE = -1; 289 private static final int ADD_OR_UPDATE_SOURCE = -3; 290 291 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 292 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 293 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 294 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 295 296 private boolean mBluetoothConnectionActive = false; 297 298 private PowerManager.WakeLock mSuspendWakeLock; 299 300 /** 301 * Interval in milliseconds between polling for RSSI 302 * and linkspeed information 303 */ 304 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 305 306 /** 307 * Interval in milliseconds between receiving a disconnect event 308 * while connected to a good AP, and handling the disconnect proper 309 */ 310 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 4000; 311 312 /** 313 * Delay between supplicant restarts upon failure to establish connection 314 */ 315 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 316 317 /** 318 * Number of times we attempt to restart supplicant 319 */ 320 private static final int SUPPLICANT_RESTART_TRIES = 5; 321 322 /** 323 * Value to set in wpa_supplicant "bssid" field when we don't want to restrict connection to 324 * a specific AP. 325 */ 326 private static final String SUPPLICANT_BSSID_ANY = "any"; 327 328 private int mSupplicantRestartCount = 0; 329 /* Tracks sequence number on stop failure message */ 330 private int mSupplicantStopFailureToken = 0; 331 332 /** 333 * The link properties of the wifi interface. 334 * Do not modify this directly; use updateLinkProperties instead. 335 */ 336 private LinkProperties mLinkProperties; 337 338 /* Tracks sequence number on a periodic scan message */ 339 private int mPeriodicScanToken = 0; 340 341 // Wakelock held during wifi start/stop and driver load/unload 342 private PowerManager.WakeLock mWakeLock; 343 344 private Context mContext; 345 346 private final Object mDhcpResultsLock = new Object(); 347 private DhcpResults mDhcpResults; 348 349 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 350 private final WifiInfo mWifiInfo; 351 private NetworkInfo mNetworkInfo; 352 private final NetworkCapabilities mDfltNetworkCapabilities; 353 private SupplicantStateTracker mSupplicantStateTracker; 354 355 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 356 357 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 358 private boolean mAutoRoaming = false; 359 360 // Roaming failure count 361 private int mRoamFailCount = 0; 362 363 // This is the BSSID we are trying to associate to, it can be set to SUPPLICANT_BSSID_ANY 364 // if we havent selected a BSSID for joining. 365 private String mTargetRoamBSSID = SUPPLICANT_BSSID_ANY; 366 // This one is used to track whta is the current target network ID. This is used for error 367 // handling during connection setup since many error message from supplicant does not report 368 // SSID Once connected, it will be set to invalid 369 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 370 private long mLastDriverRoamAttempt = 0; 371 private WifiConfiguration targetWificonfiguration = null; 372 373 boolean isRoaming() { 374 return mAutoRoaming; 375 } 376 377 /** 378 * Method to clear {@link #mTargetRoamBSSID} and reset the the current connected network's 379 * bssid in wpa_supplicant after a roam/connect attempt. 380 */ 381 public boolean clearTargetBssid(String dbg) { 382 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 383 if (config == null) { 384 return false; 385 } 386 String bssid = SUPPLICANT_BSSID_ANY; 387 if (config.BSSID != null) { 388 bssid = config.BSSID; 389 if (mVerboseLoggingEnabled) { 390 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 391 } 392 } 393 if (mVerboseLoggingEnabled) { 394 logd(dbg + " clearTargetBssid " + bssid + " key=" + config.configKey()); 395 } 396 mTargetRoamBSSID = bssid; 397 return mWifiSupplicantControl.setConfiguredNetworkBSSID(bssid); 398 } 399 400 /** 401 * Set Config's default BSSID (for association purpose) and {@link #mTargetRoamBSSID} 402 * @param config config need set BSSID 403 * @param bssid default BSSID to assocaite with when connect to this network 404 * @return false -- does not change the current default BSSID of the configure 405 * true -- change the current default BSSID of the configur 406 */ 407 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 408 if (config == null || bssid == null) { 409 return false; 410 } 411 if (config.BSSID != null) { 412 bssid = config.BSSID; 413 if (mVerboseLoggingEnabled) { 414 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 415 } 416 } 417 if (mVerboseLoggingEnabled) { 418 Log.d(TAG, "setTargetBssid set to " + bssid + " key=" + config.configKey()); 419 } 420 mTargetRoamBSSID = bssid; 421 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 422 return true; 423 } 424 425 private final IpManager mIpManager; 426 427 // Channel for sending replies. 428 private AsyncChannel mReplyChannel = new AsyncChannel(); 429 430 // Used to initiate a connection with WifiP2pService 431 private AsyncChannel mWifiP2pChannel; 432 433 private WifiScanner mWifiScanner; 434 435 @GuardedBy("mWifiReqCountLock") 436 private int mConnectionReqCount = 0; 437 private WifiNetworkFactory mNetworkFactory; 438 @GuardedBy("mWifiReqCountLock") 439 private int mUntrustedReqCount = 0; 440 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 441 private WifiNetworkAgent mNetworkAgent; 442 private final Object mWifiReqCountLock = new Object(); 443 444 private byte[] mRssiRanges; 445 446 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 447 // We should really persist that into the networkHistory.txt file, and read it back when 448 // WifiStateMachine starts up 449 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 450 451 // Used to filter out requests we couldn't possibly satisfy. 452 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 453 454 // Provide packet filter capabilities to ConnectivityService. 455 private final NetworkMisc mNetworkMisc = new NetworkMisc(); 456 457 /* The base for wifi message types */ 458 static final int BASE = Protocol.BASE_WIFI; 459 /* Start the supplicant */ 460 static final int CMD_START_SUPPLICANT = BASE + 11; 461 /* Stop the supplicant */ 462 static final int CMD_STOP_SUPPLICANT = BASE + 12; 463 /* Indicates Static IP succeeded */ 464 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 465 /* Indicates Static IP failed */ 466 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 467 /* Indicates supplicant stop failed */ 468 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 469 /* A delayed message sent to start driver when it fail to come up */ 470 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 471 472 /* Start the soft access point */ 473 static final int CMD_START_AP = BASE + 21; 474 /* Indicates soft ap start failed */ 475 static final int CMD_START_AP_FAILURE = BASE + 22; 476 /* Stop the soft access point */ 477 static final int CMD_STOP_AP = BASE + 23; 478 /* Soft access point teardown is completed. */ 479 static final int CMD_AP_STOPPED = BASE + 24; 480 481 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 482 483 /* Supplicant commands */ 484 /* Is supplicant alive ? */ 485 static final int CMD_PING_SUPPLICANT = BASE + 51; 486 /* Add/update a network configuration */ 487 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 488 /* Delete a network */ 489 static final int CMD_REMOVE_NETWORK = BASE + 53; 490 /* Enable a network. The device will attempt a connection to the given network. */ 491 static final int CMD_ENABLE_NETWORK = BASE + 54; 492 /* Save configuration */ 493 static final int CMD_SAVE_CONFIG = BASE + 58; 494 /* Get configured networks */ 495 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 496 /* Get adaptors */ 497 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 498 /* Get configured networks with real preSharedKey */ 499 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 500 /* Get Link Layer Stats thru HAL */ 501 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 502 /* Supplicant commands after driver start*/ 503 /* Initiate a scan */ 504 static final int CMD_START_SCAN = BASE + 71; 505 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 506 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 507 /* Disconnect from a network */ 508 static final int CMD_DISCONNECT = BASE + 73; 509 /* Reconnect to a network */ 510 static final int CMD_RECONNECT = BASE + 74; 511 /* Reassociate to a network */ 512 static final int CMD_REASSOCIATE = BASE + 75; 513 /* Get Connection Statistis */ 514 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 515 516 /* Controls suspend mode optimizations 517 * 518 * When high perf mode is enabled, suspend mode optimizations are disabled 519 * 520 * When high perf mode is disabled, suspend mode optimizations are enabled 521 * 522 * Suspend mode optimizations include: 523 * - packet filtering 524 * - turn off roaming 525 * - DTIM wake up settings 526 */ 527 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 528 /* Enables RSSI poll */ 529 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 530 /* RSSI poll */ 531 static final int CMD_RSSI_POLL = BASE + 83; 532 /* Enable suspend mode optimizations in the driver */ 533 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 534 /* Delayed NETWORK_DISCONNECT */ 535 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 536 /* When there are no saved networks, we do a periodic scan to notify user of 537 * an open network */ 538 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 539 /* Test network Disconnection NETWORK_DISCONNECT */ 540 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 541 542 private int testNetworkDisconnectCounter = 0; 543 544 /* Enable TDLS on a specific MAC address */ 545 static final int CMD_ENABLE_TDLS = BASE + 92; 546 547 /** 548 * Watchdog for protecting against b/16823537 549 * Leave time for 4-way handshake to succeed 550 */ 551 static final int ROAM_GUARD_TIMER_MSEC = 15000; 552 553 int roamWatchdogCount = 0; 554 /* Roam state watchdog */ 555 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 556 /* Screen change intent handling */ 557 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 558 559 /* Disconnecting state watchdog */ 560 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 561 562 /* Remove a packages associated configrations */ 563 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 564 565 /* Disable an ephemeral network */ 566 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 567 568 /* Get matching network */ 569 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 570 571 /* alert from firmware */ 572 static final int CMD_FIRMWARE_ALERT = BASE + 100; 573 574 /* SIM is removed; reset any cached data for it */ 575 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 576 577 /* OSU APIs */ 578 static final int CMD_QUERY_OSU_ICON = BASE + 104; 579 580 /* try to match a provider with current network */ 581 static final int CMD_MATCH_PROVIDER_NETWORK = BASE + 105; 582 583 /* Commands from/to the SupplicantStateTracker */ 584 /* Reset the supplicant state tracker */ 585 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 586 587 int disconnectingWatchdogCount = 0; 588 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 589 590 /* P2p commands */ 591 /* We are ok with no response here since we wont do much with it anyway */ 592 public static final int CMD_ENABLE_P2P = BASE + 131; 593 /* In order to shut down supplicant cleanly, we wait till p2p has 594 * been disabled */ 595 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 596 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 597 598 /** 599 * Indicates the end of boot process, should be used to trigger load from config store, 600 * initiate connection attempt, etc. 601 * */ 602 static final int CMD_BOOT_COMPLETED = BASE + 134; 603 /** 604 * Initialize the WifiStateMachine. This is currently used to initialize the 605 * {@link HalDeviceManager} module. 606 */ 607 static final int CMD_INITIALIZE = BASE + 135; 608 609 /* We now have a valid IP configuration. */ 610 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 611 /* We no longer have a valid IP configuration. */ 612 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 613 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 614 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 615 616 /* Supplicant is trying to associate to a given BSSID */ 617 static final int CMD_TARGET_BSSID = BASE + 141; 618 619 /* Reload all networks and reconnect */ 620 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 621 622 static final int CMD_START_CONNECT = BASE + 143; 623 624 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 625 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 626 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 627 628 static final int CMD_UNWANTED_NETWORK = BASE + 144; 629 630 static final int CMD_START_ROAM = BASE + 145; 631 632 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 633 634 static final int CMD_NETWORK_STATUS = BASE + 148; 635 636 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 637 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 638 639 /* Remove a packages associated configrations */ 640 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 641 642 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 643 644 /* used to offload sending IP packet */ 645 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 646 647 /* used to stop offload sending IP packet */ 648 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 649 650 /* used to start rssi monitoring in hw */ 651 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 652 653 /* used to stop rssi moniroting in hw */ 654 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 655 656 /* used to indicated RSSI threshold breach in hw */ 657 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 658 659 /* Enable/Disable WifiConnectivityManager */ 660 static final int CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER = BASE + 166; 661 662 /* Enable/Disable AutoJoin when associated */ 663 static final int CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED = BASE + 167; 664 665 /** 666 * Used to handle messages bounced between WifiStateMachine and IpManager. 667 */ 668 static final int CMD_IPV4_PROVISIONING_SUCCESS = BASE + 200; 669 static final int CMD_IPV4_PROVISIONING_FAILURE = BASE + 201; 670 671 /* Push a new APF program to the HAL */ 672 static final int CMD_INSTALL_PACKET_FILTER = BASE + 202; 673 674 /* Enable/disable fallback packet filtering */ 675 static final int CMD_SET_FALLBACK_PACKET_FILTERING = BASE + 203; 676 677 /* Enable/disable Neighbor Discovery offload functionality. */ 678 static final int CMD_CONFIG_ND_OFFLOAD = BASE + 204; 679 680 /* used to indicate that the foreground user was switched */ 681 static final int CMD_USER_SWITCH = BASE + 205; 682 683 /* used to indicate that the foreground user was switched */ 684 static final int CMD_USER_UNLOCK = BASE + 206; 685 686 /* used to indicate that the foreground user was switched */ 687 static final int CMD_USER_STOP = BASE + 207; 688 689 /* Signals that IClientInterface instance underpinning our state is dead. */ 690 private static final int CMD_CLIENT_INTERFACE_BINDER_DEATH = BASE + 250; 691 692 /* Indicates that diagnostics should time out a connection start event. */ 693 private static final int CMD_DIAGS_CONNECT_TIMEOUT = BASE + 251; 694 695 // For message logging. 696 private static final Class[] sMessageClasses = { 697 AsyncChannel.class, WifiStateMachine.class, DhcpClient.class }; 698 private static final SparseArray<String> sSmToString = 699 MessageUtils.findMessageNames(sMessageClasses); 700 701 702 /* Wifi state machine modes of operation */ 703 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 704 public static final int CONNECT_MODE = 1; 705 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 706 public static final int SCAN_ONLY_MODE = 2; 707 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 708 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 709 /* DISABLED_MODE - Don't connect, don't scan, don't be an AP */ 710 public static final int DISABLED_MODE = 4; 711 712 private static final int SUCCESS = 1; 713 private static final int FAILURE = -1; 714 715 /* Tracks if suspend optimizations need to be disabled by DHCP, 716 * screen or due to high perf mode. 717 * When any of them needs to disable it, we keep the suspend optimizations 718 * disabled 719 */ 720 private int mSuspendOptNeedsDisabled = 0; 721 722 private static final int SUSPEND_DUE_TO_DHCP = 1; 723 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 724 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 725 726 /* Tracks if user has enabled suspend optimizations through settings */ 727 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 728 729 /** 730 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 731 */ 732 private final int mNoNetworksPeriodicScan; 733 734 /** 735 * Supplicant scan interval in milliseconds. 736 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 737 * from the default config if the setting is not set 738 */ 739 private long mSupplicantScanIntervalMs; 740 741 private boolean mEnableAutoJoinWhenAssociated; 742 private int mAlwaysEnableScansWhileAssociated; 743 private final int mThresholdQualifiedRssi24; 744 private final int mThresholdQualifiedRssi5; 745 private final int mThresholdSaturatedRssi24; 746 private final int mThresholdSaturatedRssi5; 747 private final int mThresholdMinimumRssi5; 748 private final int mThresholdMinimumRssi24; 749 private final boolean mEnableLinkDebouncing; 750 private final boolean mEnableChipWakeUpWhenAssociated; 751 private final boolean mEnableRssiPollWhenAssociated; 752 753 int mRunningBeaconCount = 0; 754 755 /* Default parent state */ 756 private State mDefaultState = new DefaultState(); 757 /* Temporary initial state */ 758 private State mInitialState = new InitialState(); 759 /* Driver loaded, waiting for supplicant to start */ 760 private State mSupplicantStartingState = new SupplicantStartingState(); 761 /* Driver loaded and supplicant ready */ 762 private State mSupplicantStartedState = new SupplicantStartedState(); 763 /* Waiting for supplicant to stop and monitor to exit */ 764 private State mSupplicantStoppingState = new SupplicantStoppingState(); 765 /* Wait until p2p is disabled 766 * This is a special state which is entered right after we exit out of DriverStartedState 767 * before transitioning to another state. 768 */ 769 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 770 /* Scan for networks, no connection will be established */ 771 private State mScanModeState = new ScanModeState(); 772 /* Connecting to an access point */ 773 private State mConnectModeState = new ConnectModeState(); 774 /* Connected at 802.11 (L2) level */ 775 private State mL2ConnectedState = new L2ConnectedState(); 776 /* fetching IP after connection to access point (assoc+auth complete) */ 777 private State mObtainingIpState = new ObtainingIpState(); 778 /* Connected with IP addr */ 779 private State mConnectedState = new ConnectedState(); 780 /* Roaming */ 781 private State mRoamingState = new RoamingState(); 782 /* disconnect issued, waiting for network disconnect confirmation */ 783 private State mDisconnectingState = new DisconnectingState(); 784 /* Network is not connected, supplicant assoc+auth is not complete */ 785 private State mDisconnectedState = new DisconnectedState(); 786 /* Waiting for WPS to be completed*/ 787 private State mWpsRunningState = new WpsRunningState(); 788 /* Soft ap state */ 789 private State mSoftApState = new SoftApState(); 790 791 /** 792 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 793 * {@link WifiManager#WIFI_STATE_DISABLING}, 794 * {@link WifiManager#WIFI_STATE_ENABLED}, 795 * {@link WifiManager#WIFI_STATE_ENABLING}, 796 * {@link WifiManager#WIFI_STATE_UNKNOWN} 797 */ 798 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 799 800 /** 801 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 802 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 803 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 804 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 805 * {@link WifiManager#WIFI_AP_STATE_FAILED} 806 */ 807 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 808 809 /** 810 * Work source to use to blame usage on the WiFi service 811 */ 812 public static final WorkSource WIFI_WORK_SOURCE = new WorkSource(Process.WIFI_UID); 813 814 /** 815 * Keep track of whether WIFI is running. 816 */ 817 private boolean mIsRunning = false; 818 819 /** 820 * Keep track of whether we last told the battery stats we had started. 821 */ 822 private boolean mReportedRunning = false; 823 824 /** 825 * Most recently set source of starting WIFI. 826 */ 827 private final WorkSource mRunningWifiUids = new WorkSource(); 828 829 /** 830 * The last reported UIDs that were responsible for starting WIFI. 831 */ 832 private final WorkSource mLastRunningWifiUids = new WorkSource(); 833 834 private TelephonyManager mTelephonyManager; 835 private TelephonyManager getTelephonyManager() { 836 if (mTelephonyManager == null) { 837 mTelephonyManager = mWifiInjector.makeTelephonyManager(); 838 } 839 return mTelephonyManager; 840 } 841 842 private final IBatteryStats mBatteryStats; 843 844 private final String mTcpBufferSizes; 845 846 // Used for debug and stats gathering 847 private static int sScanAlarmIntentCount = 0; 848 849 private FrameworkFacade mFacade; 850 851 private final BackupManagerProxy mBackupManagerProxy; 852 853 public WifiStateMachine(Context context, FrameworkFacade facade, Looper looper, 854 UserManager userManager, WifiInjector wifiInjector, 855 BackupManagerProxy backupManagerProxy, WifiCountryCode countryCode, 856 WifiNative wifiNative) { 857 super("WifiStateMachine", looper); 858 mWifiInjector = wifiInjector; 859 mWifiMetrics = mWifiInjector.getWifiMetrics(); 860 mClock = wifiInjector.getClock(); 861 mPropertyService = wifiInjector.getPropertyService(); 862 mBuildProperties = wifiInjector.getBuildProperties(); 863 mContext = context; 864 mFacade = facade; 865 mWifiNative = wifiNative; 866 mBackupManagerProxy = backupManagerProxy; 867 868 // TODO refactor WifiNative use of context out into it's own class 869 mWifiNative.initContext(mContext); 870 mInterfaceName = mWifiNative.getInterfaceName(); 871 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 872 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 873 BatteryStats.SERVICE_NAME)); 874 875 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 876 mNwService = INetworkManagementService.Stub.asInterface(b); 877 878 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 879 PackageManager.FEATURE_WIFI_DIRECT); 880 881 mWifiConfigManager = mWifiInjector.getWifiConfigManager(); 882 mWifiApConfigStore = mWifiInjector.getWifiApConfigStore(); 883 mWifiSupplicantControl = mWifiInjector.getWifiSupplicantControl(); 884 mWifiSupplicantControl.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 if (mVerboseLoggingEnabled) { 1148 mWifiNative.setSupplicantLogLevel("DEBUG"); 1149 } else { 1150 mWifiNative.setSupplicantLogLevel("INFO"); 1151 } 1152 } 1153 1154 /** 1155 * Method to update logging level in wifi service related classes. 1156 * 1157 * @param verbose int logging level to use 1158 */ 1159 public void enableVerboseLogging(int verbose) { 1160 if (verbose > 0) { 1161 mVerboseLoggingEnabled = true; 1162 setLogRecSize(ActivityManager.isLowRamDeviceStatic() 1163 ? NUM_LOG_RECS_VERBOSE_LOW_MEMORY : NUM_LOG_RECS_VERBOSE); 1164 } else { 1165 mVerboseLoggingEnabled = false; 1166 setLogRecSize(NUM_LOG_RECS_NORMAL); 1167 } 1168 configureVerboseHalLogging(mVerboseLoggingEnabled); 1169 setSupplicantLogLevel(); 1170 mCountryCode.enableVerboseLogging(verbose); 1171 mWifiScoreReport.enableVerboseLogging(mVerboseLoggingEnabled); 1172 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 1173 mWifiMonitor.enableVerboseLogging(verbose); 1174 mWifiNative.enableVerboseLogging(verbose); 1175 mWifiConfigManager.enableVerboseLogging(verbose); 1176 mSupplicantStateTracker.enableVerboseLogging(verbose); 1177 } 1178 1179 private static final String SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL = "log.tag.WifiHAL"; 1180 private static final String LOGD_LEVEL_DEBUG = "D"; 1181 private static final String LOGD_LEVEL_VERBOSE = "V"; 1182 private void configureVerboseHalLogging(boolean enableVerbose) { 1183 if (mBuildProperties.isUserBuild()) { // Verbose HAL logging not supported on user builds. 1184 return; 1185 } 1186 mPropertyService.set(SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL, 1187 enableVerbose ? LOGD_LEVEL_VERBOSE : LOGD_LEVEL_DEBUG); 1188 } 1189 1190 private int mAggressiveHandover = 0; 1191 1192 int getAggressiveHandover() { 1193 return mAggressiveHandover; 1194 } 1195 1196 void enableAggressiveHandover(int enabled) { 1197 mAggressiveHandover = enabled; 1198 } 1199 1200 public void clearANQPCache() { 1201 // TODO(b/31065385) 1202 // mWifiConfigManager.trimANQPCache(true); 1203 } 1204 1205 public void setAllowScansWithTraffic(int enabled) { 1206 mAlwaysEnableScansWhileAssociated = enabled; 1207 } 1208 1209 public int getAllowScansWithTraffic() { 1210 return mAlwaysEnableScansWhileAssociated; 1211 } 1212 1213 /* 1214 * Dynamically turn on/off if switching networks while connected is allowd. 1215 */ 1216 public boolean setEnableAutoJoinWhenAssociated(boolean enabled) { 1217 sendMessage(CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED, enabled ? 1 : 0); 1218 return true; 1219 } 1220 1221 public boolean getEnableAutoJoinWhenAssociated() { 1222 return mEnableAutoJoinWhenAssociated; 1223 } 1224 1225 private boolean setRandomMacOui() { 1226 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1227 if (TextUtils.isEmpty(oui)) { 1228 oui = GOOGLE_OUI; 1229 } 1230 String[] ouiParts = oui.split("-"); 1231 byte[] ouiBytes = new byte[3]; 1232 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1233 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1234 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1235 1236 logd("Setting OUI to " + oui); 1237 return mWifiNative.setScanningMacOui(ouiBytes); 1238 } 1239 1240 /** 1241 * Helper method to lookup the framework network ID of the network currently configured in 1242 * wpa_supplicant using the provided supplicant network ID. This is needed for translating the 1243 * networkID received from all {@link WifiMonitor} events. 1244 * 1245 * @param supplicantNetworkId Network ID of network in wpa_supplicant. 1246 * @return Corresponding Internal configured network ID 1247 * TODO(b/31080843): This is ugly! We need to hide this translation of networkId's. This will 1248 * be handled once we move all of this connection logic to wificond. 1249 */ 1250 private int lookupFrameworkNetworkId(int supplicantNetworkId) { 1251 return mWifiSupplicantControl.getFrameworkNetworkId(supplicantNetworkId); 1252 } 1253 1254 /** 1255 * Initiates connection to a network specified by the user/app. This method checks if the 1256 * requesting app holds the WIFI_CONFIG_OVERRIDE permission. 1257 */ 1258 private boolean connectToUserSelectNetwork(int netId, int uid) { 1259 if (!mWifiConfigManager.enableNetwork(netId, true, uid)) { 1260 loge("connectToUserSelectNetwork uid " + uid 1261 + " did not have the permissions to enable=" + netId); 1262 return false; 1263 } 1264 if (!mWifiConfigManager.checkAndUpdateLastConnectUid(netId, uid)) { 1265 logi("connectToUserSelectNetwork Allowing uid " + uid 1266 + " with insufficient permissions to connect=" + netId); 1267 } 1268 // Trigger an immediate connection to the specified network. We're also noting the user 1269 // connect choice here, so that it will be considered in the next network selection. 1270 mWifiConnectivityManager.setUserConnectChoice(netId); 1271 if (mWifiInfo.getNetworkId() == netId) { 1272 // We're already connected to the user specified network, don't trigger a 1273 // reconnection. 1274 logi("connectToUserSelectNetwork already connecting/connected=" + netId); 1275 } else { 1276 startConnectToNetwork(netId, SUPPLICANT_BSSID_ANY); 1277 } 1278 return true; 1279 } 1280 1281 /** 1282 * ****************************************************** 1283 * Methods exposed for public use 1284 * ****************************************************** 1285 */ 1286 1287 public Messenger getMessenger() { 1288 return new Messenger(getHandler()); 1289 } 1290 1291 /** 1292 * TODO: doc 1293 */ 1294 public boolean syncPingSupplicant(AsyncChannel channel) { 1295 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1296 boolean result = (resultMsg.arg1 != FAILURE); 1297 resultMsg.recycle(); 1298 return result; 1299 } 1300 1301 /** 1302 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1303 * given to callingUid. 1304 * 1305 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1306 * workSource is specified. 1307 * @param workSource If not null, blame is given to workSource. 1308 * @param settings Scan settings, see {@link ScanSettings}. 1309 */ 1310 public void startScan(int callingUid, int scanCounter, 1311 ScanSettings settings, WorkSource workSource) { 1312 Bundle bundle = new Bundle(); 1313 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1314 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1315 bundle.putLong(SCAN_REQUEST_TIME, mClock.getWallClockMillis()); 1316 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1317 } 1318 1319 private long mDisconnectedTimeStamp = 0; 1320 1321 public long getDisconnectedTimeMilli() { 1322 if (getCurrentState() == mDisconnectedState 1323 && mDisconnectedTimeStamp != 0) { 1324 long now_ms = mClock.getWallClockMillis(); 1325 return now_ms - mDisconnectedTimeStamp; 1326 } 1327 return 0; 1328 } 1329 1330 // Last connect attempt is used to prevent scan requests: 1331 // - for a period of 10 seconds after attempting to connect 1332 private long lastConnectAttemptTimestamp = 0; 1333 private Set<Integer> lastScanFreqs = null; 1334 1335 // For debugging, keep track of last message status handling 1336 // TODO, find an equivalent mechanism as part of parent class 1337 private static final int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1338 private static final int MESSAGE_HANDLING_STATUS_OK = 1; 1339 private static final int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1340 private static final int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1341 private static final int MESSAGE_HANDLING_STATUS_FAIL = -2; 1342 private static final int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1343 private static final int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1344 private static final int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1345 private static final int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1346 private static final int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1347 1348 private int messageHandlingStatus = 0; 1349 1350 //TODO: this is used only to track connection attempts, however the link state and packet per 1351 //TODO: second logic should be folded into that 1352 private boolean checkOrDeferScanAllowed(Message msg) { 1353 long now = mClock.getWallClockMillis(); 1354 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1355 Message dmsg = Message.obtain(msg); 1356 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1357 return false; 1358 } 1359 return true; 1360 } 1361 1362 private int mOnTime = 0; 1363 private int mTxTime = 0; 1364 private int mRxTime = 0; 1365 1366 private int mOnTimeScreenStateChange = 0; 1367 private long lastOntimeReportTimeStamp = 0; 1368 private long lastScreenStateChangeTimeStamp = 0; 1369 private int mOnTimeLastReport = 0; 1370 private int mTxTimeLastReport = 0; 1371 private int mRxTimeLastReport = 0; 1372 1373 private long lastLinkLayerStatsUpdate = 0; 1374 1375 String reportOnTime() { 1376 long now = mClock.getWallClockMillis(); 1377 StringBuilder sb = new StringBuilder(); 1378 // Report stats since last report 1379 int on = mOnTime - mOnTimeLastReport; 1380 mOnTimeLastReport = mOnTime; 1381 int tx = mTxTime - mTxTimeLastReport; 1382 mTxTimeLastReport = mTxTime; 1383 int rx = mRxTime - mRxTimeLastReport; 1384 mRxTimeLastReport = mRxTime; 1385 int period = (int) (now - lastOntimeReportTimeStamp); 1386 lastOntimeReportTimeStamp = now; 1387 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1388 // Report stats since Screen State Changed 1389 on = mOnTime - mOnTimeScreenStateChange; 1390 period = (int) (now - lastScreenStateChangeTimeStamp); 1391 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1392 return sb.toString(); 1393 } 1394 1395 WifiLinkLayerStats getWifiLinkLayerStats() { 1396 WifiLinkLayerStats stats = null; 1397 if (mWifiLinkLayerStatsSupported > 0) { 1398 String name = "wlan0"; 1399 stats = mWifiNative.getWifiLinkLayerStats(name); 1400 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1401 mWifiLinkLayerStatsSupported -= 1; 1402 } else if (stats != null) { 1403 lastLinkLayerStatsUpdate = mClock.getWallClockMillis(); 1404 mOnTime = stats.on_time; 1405 mTxTime = stats.tx_time; 1406 mRxTime = stats.rx_time; 1407 mRunningBeaconCount = stats.beacon_rx; 1408 } 1409 } 1410 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1411 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1412 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1413 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1414 } else { 1415 mWifiInfo.updatePacketRates(stats, lastLinkLayerStatsUpdate); 1416 } 1417 return stats; 1418 } 1419 1420 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1421 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1422 if (ret != 0) { 1423 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1424 "): hardware error " + ret); 1425 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1426 } else { 1427 return ConnectivityManager.PacketKeepalive.SUCCESS; 1428 } 1429 } 1430 1431 int stopWifiIPPacketOffload(int slot) { 1432 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1433 if (ret != 0) { 1434 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1435 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1436 } else { 1437 return ConnectivityManager.PacketKeepalive.SUCCESS; 1438 } 1439 } 1440 1441 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1442 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1443 } 1444 1445 int stopRssiMonitoringOffload() { 1446 return mWifiNative.stopRssiMonitoring(); 1447 } 1448 1449 private void handleScanRequest(Message message) { 1450 ScanSettings settings = null; 1451 WorkSource workSource = null; 1452 1453 // unbundle parameters 1454 Bundle bundle = (Bundle) message.obj; 1455 1456 if (bundle != null) { 1457 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 1458 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 1459 } 1460 1461 Set<Integer> freqs = null; 1462 if (settings != null && settings.channelSet != null) { 1463 freqs = new HashSet<>(); 1464 for (WifiChannel channel : settings.channelSet) { 1465 freqs.add(channel.freqMHz); 1466 } 1467 } 1468 1469 // Retrieve the list of hidden network SSIDs to scan for. 1470 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = 1471 mWifiConfigManager.retrieveHiddenNetworkList(); 1472 1473 // call wifi native to start the scan 1474 if (startScanNative(freqs, hiddenNetworks, workSource)) { 1475 // a full scan covers everything, clearing scan request buffer 1476 if (freqs == null) 1477 mBufferedScanMsg.clear(); 1478 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 1479 return; 1480 } 1481 1482 // if reach here, scan request is rejected 1483 1484 if (!mIsScanOngoing) { 1485 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 1486 1487 // discard this request and pop up the next one 1488 if (mBufferedScanMsg.size() > 0) { 1489 sendMessage(mBufferedScanMsg.remove()); 1490 } 1491 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 1492 } else if (!mIsFullScanOngoing) { 1493 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 1494 // buffer the scan request to make sure specified channels will be scanned eventually 1495 if (freqs == null) 1496 mBufferedScanMsg.clear(); 1497 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 1498 Message msg = obtainMessage(CMD_START_SCAN, 1499 message.arg1, message.arg2, bundle); 1500 mBufferedScanMsg.add(msg); 1501 } else { 1502 // if too many requests in buffer, combine them into a single full scan 1503 bundle = new Bundle(); 1504 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 1505 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1506 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 1507 mBufferedScanMsg.clear(); 1508 mBufferedScanMsg.add(msg); 1509 } 1510 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 1511 } else { 1512 // mIsScanOngoing and mIsFullScanOngoing 1513 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 1514 } 1515 } 1516 1517 1518 // TODO this is a temporary measure to bridge between WifiScanner and WifiStateMachine until 1519 // scan functionality is refactored out of WifiStateMachine. 1520 /** 1521 * return true iff scan request is accepted 1522 */ 1523 private boolean startScanNative(final Set<Integer> freqs, 1524 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworkList, 1525 WorkSource workSource) { 1526 WifiScanner.ScanSettings settings = new WifiScanner.ScanSettings(); 1527 if (freqs == null) { 1528 settings.band = WifiScanner.WIFI_BAND_BOTH_WITH_DFS; 1529 } else { 1530 settings.band = WifiScanner.WIFI_BAND_UNSPECIFIED; 1531 int index = 0; 1532 settings.channels = new WifiScanner.ChannelSpec[freqs.size()]; 1533 for (Integer freq : freqs) { 1534 settings.channels[index++] = new WifiScanner.ChannelSpec(freq); 1535 } 1536 } 1537 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN 1538 | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT; 1539 1540 settings.hiddenNetworks = 1541 hiddenNetworkList.toArray( 1542 new WifiScanner.ScanSettings.HiddenNetwork[hiddenNetworkList.size()]); 1543 1544 WifiScanner.ScanListener nativeScanListener = new WifiScanner.ScanListener() { 1545 // ignore all events since WifiStateMachine is registered for the supplicant events 1546 @Override 1547 public void onSuccess() { 1548 } 1549 @Override 1550 public void onFailure(int reason, String description) { 1551 mIsScanOngoing = false; 1552 mIsFullScanOngoing = false; 1553 } 1554 @Override 1555 public void onResults(WifiScanner.ScanData[] results) { 1556 } 1557 @Override 1558 public void onFullResult(ScanResult fullScanResult) { 1559 } 1560 @Override 1561 public void onPeriodChanged(int periodInMs) { 1562 } 1563 }; 1564 mWifiScanner.startScan(settings, nativeScanListener, workSource); 1565 mIsScanOngoing = true; 1566 mIsFullScanOngoing = (freqs == null); 1567 lastScanFreqs = freqs; 1568 return true; 1569 } 1570 1571 /** 1572 * TODO: doc 1573 */ 1574 public void setSupplicantRunning(boolean enable) { 1575 if (enable) { 1576 sendMessage(CMD_START_SUPPLICANT); 1577 } else { 1578 sendMessage(CMD_STOP_SUPPLICANT); 1579 } 1580 } 1581 1582 /** 1583 * TODO: doc 1584 */ 1585 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 1586 if (enable) { 1587 sendMessage(CMD_START_AP, wifiConfig); 1588 } else { 1589 sendMessage(CMD_STOP_AP); 1590 } 1591 } 1592 1593 public void setWifiApConfiguration(WifiConfiguration config) { 1594 mWifiApConfigStore.setApConfiguration(config); 1595 } 1596 1597 public WifiConfiguration syncGetWifiApConfiguration() { 1598 return mWifiApConfigStore.getApConfiguration(); 1599 } 1600 1601 /** 1602 * TODO: doc 1603 */ 1604 public int syncGetWifiState() { 1605 return mWifiState.get(); 1606 } 1607 1608 /** 1609 * TODO: doc 1610 */ 1611 public String syncGetWifiStateByName() { 1612 switch (mWifiState.get()) { 1613 case WIFI_STATE_DISABLING: 1614 return "disabling"; 1615 case WIFI_STATE_DISABLED: 1616 return "disabled"; 1617 case WIFI_STATE_ENABLING: 1618 return "enabling"; 1619 case WIFI_STATE_ENABLED: 1620 return "enabled"; 1621 case WIFI_STATE_UNKNOWN: 1622 return "unknown state"; 1623 default: 1624 return "[invalid state]"; 1625 } 1626 } 1627 1628 /** 1629 * TODO: doc 1630 */ 1631 public int syncGetWifiApState() { 1632 return mWifiApState.get(); 1633 } 1634 1635 /** 1636 * TODO: doc 1637 */ 1638 public String syncGetWifiApStateByName() { 1639 switch (mWifiApState.get()) { 1640 case WIFI_AP_STATE_DISABLING: 1641 return "disabling"; 1642 case WIFI_AP_STATE_DISABLED: 1643 return "disabled"; 1644 case WIFI_AP_STATE_ENABLING: 1645 return "enabling"; 1646 case WIFI_AP_STATE_ENABLED: 1647 return "enabled"; 1648 case WIFI_AP_STATE_FAILED: 1649 return "failed"; 1650 default: 1651 return "[invalid state]"; 1652 } 1653 } 1654 1655 public boolean isConnected() { 1656 return getCurrentState() == mConnectedState; 1657 } 1658 1659 public boolean isDisconnected() { 1660 return getCurrentState() == mDisconnectedState; 1661 } 1662 1663 public boolean isSupplicantTransientState() { 1664 SupplicantState supplicantState = mWifiInfo.getSupplicantState(); 1665 if (supplicantState == SupplicantState.ASSOCIATING 1666 || supplicantState == SupplicantState.AUTHENTICATING 1667 || supplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 1668 || supplicantState == SupplicantState.GROUP_HANDSHAKE) { 1669 1670 if (mVerboseLoggingEnabled) { 1671 Log.d(TAG, "Supplicant is under transient state: " + supplicantState); 1672 } 1673 return true; 1674 } else { 1675 if (mVerboseLoggingEnabled) { 1676 Log.d(TAG, "Supplicant is under steady state: " + supplicantState); 1677 } 1678 } 1679 1680 return false; 1681 } 1682 1683 public boolean isLinkDebouncing() { 1684 return mIsLinkDebouncing; 1685 } 1686 1687 /** 1688 * Get status information for the current connection, if any. 1689 * 1690 * @return a {@link WifiInfo} object containing information about the current connection 1691 */ 1692 public WifiInfo syncRequestConnectionInfo() { 1693 return getWiFiInfoForUid(Binder.getCallingUid()); 1694 } 1695 1696 public WifiInfo getWifiInfo() { 1697 return mWifiInfo; 1698 } 1699 1700 public DhcpResults syncGetDhcpResults() { 1701 synchronized (mDhcpResultsLock) { 1702 return new DhcpResults(mDhcpResults); 1703 } 1704 } 1705 1706 /** 1707 * TODO: doc 1708 */ 1709 public void setOperationalMode(int mode) { 1710 if (mVerboseLoggingEnabled) log("setting operational mode to " + String.valueOf(mode)); 1711 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 1712 } 1713 1714 /** 1715 * Allow tests to confirm the operational mode for WSM. 1716 */ 1717 @VisibleForTesting 1718 protected int getOperationalModeForTest() { 1719 return mOperationalMode; 1720 } 1721 1722 /** 1723 * TODO: doc 1724 */ 1725 public List<ScanResult> syncGetScanResultsList() { 1726 synchronized (mScanResultsLock) { 1727 List<ScanResult> scanList = new ArrayList<>(); 1728 for (ScanDetail result : mScanResults) { 1729 scanList.add(new ScanResult(result.getScanResult())); 1730 } 1731 return scanList; 1732 } 1733 } 1734 1735 public boolean syncQueryPasspointIcon(AsyncChannel channel, long bssid, String fileName) { 1736 Bundle bundle = new Bundle(); 1737 bundle.putLong(EXTRA_OSU_ICON_QUERY_BSSID, bssid); 1738 bundle.putString(EXTRA_OSU_ICON_QUERY_FILENAME, fileName); 1739 Message resultMsg = channel.sendMessageSynchronously(CMD_QUERY_OSU_ICON, bundle); 1740 int result = resultMsg.arg1; 1741 resultMsg.recycle(); 1742 return result == 1; 1743 } 1744 1745 public int matchProviderWithCurrentNetwork(AsyncChannel channel, String fqdn) { 1746 Message resultMsg = channel.sendMessageSynchronously(CMD_MATCH_PROVIDER_NETWORK, fqdn); 1747 int result = resultMsg.arg1; 1748 resultMsg.recycle(); 1749 return result; 1750 } 1751 1752 /** 1753 * Deauthenticate and set the re-authentication hold off time for the current network 1754 * @param holdoff hold off time in milliseconds 1755 * @param ess set if the hold off pertains to an ESS rather than a BSS 1756 */ 1757 public void deauthenticateNetwork(AsyncChannel channel, long holdoff, boolean ess) { 1758 // TODO: This needs an implementation 1759 } 1760 1761 public void disableEphemeralNetwork(String SSID) { 1762 if (SSID != null) { 1763 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 1764 } 1765 } 1766 1767 /** 1768 * Disconnect from Access Point 1769 */ 1770 public void disconnectCommand() { 1771 sendMessage(CMD_DISCONNECT); 1772 } 1773 1774 public void disconnectCommand(int uid, int reason) { 1775 sendMessage(CMD_DISCONNECT, uid, reason); 1776 } 1777 1778 /** 1779 * Initiate a reconnection to AP 1780 */ 1781 public void reconnectCommand() { 1782 sendMessage(CMD_RECONNECT); 1783 } 1784 1785 /** 1786 * Initiate a re-association to AP 1787 */ 1788 public void reassociateCommand() { 1789 sendMessage(CMD_REASSOCIATE); 1790 } 1791 1792 /** 1793 * Reload networks and then reconnect; helps load correct data for TLS networks 1794 */ 1795 1796 public void reloadTlsNetworksAndReconnect() { 1797 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 1798 } 1799 1800 /** 1801 * Add a network synchronously 1802 * 1803 * @return network id of the new network 1804 */ 1805 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 1806 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 1807 int result = resultMsg.arg1; 1808 resultMsg.recycle(); 1809 return result; 1810 } 1811 1812 /** 1813 * Get configured networks synchronously 1814 * 1815 * @param channel 1816 * @return 1817 */ 1818 1819 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 1820 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 1821 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1822 resultMsg.recycle(); 1823 return result; 1824 } 1825 1826 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 1827 Message resultMsg = channel.sendMessageSynchronously( 1828 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 1829 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1830 resultMsg.recycle(); 1831 return result; 1832 } 1833 1834 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 1835 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 1836 return (WifiConfiguration) resultMsg.obj; 1837 } 1838 1839 /** 1840 * Get connection statistics synchronously 1841 * 1842 * @param channel 1843 * @return 1844 */ 1845 1846 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 1847 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 1848 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 1849 resultMsg.recycle(); 1850 return result; 1851 } 1852 1853 /** 1854 * Get adaptors synchronously 1855 */ 1856 1857 public int syncGetSupportedFeatures(AsyncChannel channel) { 1858 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 1859 int supportedFeatureSet = resultMsg.arg1; 1860 resultMsg.recycle(); 1861 1862 // Mask the feature set against system properties. 1863 boolean disableRtt = mPropertyService.getBoolean("config.disable_rtt", false); 1864 if (disableRtt) { 1865 supportedFeatureSet &= 1866 ~(WifiManager.WIFI_FEATURE_D2D_RTT | WifiManager.WIFI_FEATURE_D2AP_RTT); 1867 } 1868 1869 return supportedFeatureSet; 1870 } 1871 1872 /** 1873 * Get link layers stats for adapter synchronously 1874 */ 1875 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 1876 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 1877 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 1878 resultMsg.recycle(); 1879 return result; 1880 } 1881 1882 /** 1883 * Delete a network 1884 * 1885 * @param networkId id of the network to be removed 1886 */ 1887 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 1888 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 1889 boolean result = (resultMsg.arg1 != FAILURE); 1890 resultMsg.recycle(); 1891 return result; 1892 } 1893 1894 /** 1895 * Enable a network 1896 * 1897 * @param netId network id of the network 1898 * @param disableOthers true, if all other networks have to be disabled 1899 * @return {@code true} if the operation succeeds, {@code false} otherwise 1900 */ 1901 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 1902 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 1903 disableOthers ? 1 : 0); 1904 boolean result = (resultMsg.arg1 != FAILURE); 1905 resultMsg.recycle(); 1906 return result; 1907 } 1908 1909 /** 1910 * Disable a network 1911 * 1912 * @param netId network id of the network 1913 * @return {@code true} if the operation succeeds, {@code false} otherwise 1914 */ 1915 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 1916 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 1917 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 1918 resultMsg.recycle(); 1919 return result; 1920 } 1921 1922 /** 1923 * Retrieves a WPS-NFC configuration token for the specified network 1924 * 1925 * @return a hex string representation of the WPS-NFC configuration token 1926 */ 1927 public String syncGetWpsNfcConfigurationToken(int netId) { 1928 return mWifiNative.getNfcWpsConfigurationToken(netId); 1929 } 1930 1931 public void enableRssiPolling(boolean enabled) { 1932 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 1933 } 1934 1935 /** 1936 * Start filtering Multicast v4 packets 1937 */ 1938 public void startFilteringMulticastPackets() { 1939 mIpManager.setMulticastFilter(true); 1940 } 1941 1942 /** 1943 * Stop filtering Multicast v4 packets 1944 */ 1945 public void stopFilteringMulticastPackets() { 1946 mIpManager.setMulticastFilter(false); 1947 } 1948 1949 /** 1950 * Set high performance mode of operation. 1951 * Enabling would set active power mode and disable suspend optimizations; 1952 * disabling would set auto power mode and enable suspend optimizations 1953 * 1954 * @param enable true if enable, false otherwise 1955 */ 1956 public void setHighPerfModeEnabled(boolean enable) { 1957 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 1958 } 1959 1960 1961 /** 1962 * reset cached SIM credential data 1963 */ 1964 public synchronized void resetSimAuthNetworks(boolean simPresent) { 1965 sendMessage(CMD_RESET_SIM_NETWORKS, simPresent ? 1 : 0); 1966 } 1967 1968 /** 1969 * Get Network object of current wifi network 1970 * @return Network object of current wifi network 1971 */ 1972 public Network getCurrentNetwork() { 1973 if (mNetworkAgent != null) { 1974 return new Network(mNetworkAgent.netId); 1975 } else { 1976 return null; 1977 } 1978 } 1979 1980 /** 1981 * Enable TDLS for a specific MAC address 1982 */ 1983 public void enableTdls(String remoteMacAddress, boolean enable) { 1984 int enabler = enable ? 1 : 0; 1985 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 1986 } 1987 1988 /** 1989 * Send a message indicating bluetooth adapter connection state changed 1990 */ 1991 public void sendBluetoothAdapterStateChange(int state) { 1992 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 1993 } 1994 1995 /** 1996 * Send a message indicating a package has been uninstalled. 1997 */ 1998 public void removeAppConfigs(String packageName, int uid) { 1999 // Build partial AppInfo manually - package may not exist in database any more 2000 ApplicationInfo ai = new ApplicationInfo(); 2001 ai.packageName = packageName; 2002 ai.uid = uid; 2003 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2004 } 2005 2006 /** 2007 * Send a message indicating a user has been removed. 2008 */ 2009 public void removeUserConfigs(int userId) { 2010 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2011 } 2012 2013 /** 2014 * Save configuration on supplicant 2015 * 2016 * @return {@code true} if the operation succeeds, {@code false} otherwise 2017 * <p/> 2018 * TODO: deprecate this 2019 */ 2020 public boolean syncSaveConfig(AsyncChannel channel) { 2021 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2022 boolean result = (resultMsg.arg1 != FAILURE); 2023 resultMsg.recycle(); 2024 return result; 2025 } 2026 2027 public void updateBatteryWorkSource(WorkSource newSource) { 2028 synchronized (mRunningWifiUids) { 2029 try { 2030 if (newSource != null) { 2031 mRunningWifiUids.set(newSource); 2032 } 2033 if (mIsRunning) { 2034 if (mReportedRunning) { 2035 // If the work source has changed since last time, need 2036 // to remove old work from battery stats. 2037 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2038 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2039 mRunningWifiUids); 2040 mLastRunningWifiUids.set(mRunningWifiUids); 2041 } 2042 } else { 2043 // Now being started, report it. 2044 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2045 mLastRunningWifiUids.set(mRunningWifiUids); 2046 mReportedRunning = true; 2047 } 2048 } else { 2049 if (mReportedRunning) { 2050 // Last reported we were running, time to stop. 2051 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2052 mLastRunningWifiUids.clear(); 2053 mReportedRunning = false; 2054 } 2055 } 2056 mWakeLock.setWorkSource(newSource); 2057 } catch (RemoteException ignore) { 2058 } 2059 } 2060 } 2061 2062 public void dumpIpManager(FileDescriptor fd, PrintWriter pw, String[] args) { 2063 mIpManager.dump(fd, pw, args); 2064 } 2065 2066 @Override 2067 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2068 if (args.length > 1 && WifiMetrics.PROTO_DUMP_ARG.equals(args[0]) 2069 && WifiMetrics.CLEAN_DUMP_ARG.equals(args[1])) { 2070 // Dump only wifi metrics serialized proto bytes (base64) 2071 updateWifiMetrics(); 2072 mWifiMetrics.dump(fd, pw, args); 2073 return; 2074 } 2075 super.dump(fd, pw, args); 2076 mSupplicantStateTracker.dump(fd, pw, args); 2077 pw.println("mLinkProperties " + mLinkProperties); 2078 pw.println("mWifiInfo " + mWifiInfo); 2079 pw.println("mDhcpResults " + mDhcpResults); 2080 pw.println("mNetworkInfo " + mNetworkInfo); 2081 pw.println("mLastSignalLevel " + mLastSignalLevel); 2082 pw.println("mLastBssid " + mLastBssid); 2083 pw.println("mLastNetworkId " + mLastNetworkId); 2084 pw.println("mOperationalMode " + mOperationalMode); 2085 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2086 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2087 pw.println("mSystemSupportsFastBssTransition " 2088 + mWifiSupplicantControl.getSystemSupportsFastBssTransition()); 2089 if (mCountryCode.getCountryCodeSentToDriver() != null) { 2090 pw.println("CountryCode sent to driver " + mCountryCode.getCountryCodeSentToDriver()); 2091 } else { 2092 if (mCountryCode.getCountryCode() != null) { 2093 pw.println("CountryCode: " + 2094 mCountryCode.getCountryCode() + " was not sent to driver"); 2095 } else { 2096 pw.println("CountryCode was not initialized"); 2097 } 2098 } 2099 if (mNetworkFactory != null) { 2100 mNetworkFactory.dump(fd, pw, args); 2101 } else { 2102 pw.println("mNetworkFactory is not initialized"); 2103 } 2104 2105 if (mUntrustedNetworkFactory != null) { 2106 mUntrustedNetworkFactory.dump(fd, pw, args); 2107 } else { 2108 pw.println("mUntrustedNetworkFactory is not initialized"); 2109 } 2110 pw.println("Wlan Wake Reasons:" + mWifiNative.getWlanWakeReasonCount()); 2111 pw.println(); 2112 updateWifiMetrics(); 2113 mWifiMetrics.dump(fd, pw, args); 2114 pw.println(); 2115 2116 mWifiConfigManager.dump(fd, pw, args); 2117 pw.println(); 2118 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_USER_ACTION); 2119 mWifiDiagnostics.dump(fd, pw, args); 2120 dumpIpManager(fd, pw, args); 2121 mWifiNetworkSelector.dump(fd, pw, args); 2122 } 2123 2124 public void handleUserSwitch(int userId) { 2125 sendMessage(CMD_USER_SWITCH, userId); 2126 } 2127 2128 public void handleUserUnlock(int userId) { 2129 sendMessage(CMD_USER_UNLOCK, userId); 2130 } 2131 2132 public void handleUserStop(int userId) { 2133 sendMessage(CMD_USER_STOP, userId); 2134 } 2135 2136 /** 2137 * ****************************************************** 2138 * Internal private functions 2139 * ****************************************************** 2140 */ 2141 2142 private void logStateAndMessage(Message message, State state) { 2143 messageHandlingStatus = 0; 2144 if (mVerboseLoggingEnabled) { 2145 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2146 } 2147 } 2148 2149 /** 2150 * helper, prints the milli time since boot wi and w/o suspended time 2151 */ 2152 String printTime() { 2153 StringBuilder sb = new StringBuilder(); 2154 sb.append(" rt=").append(mClock.getUptimeSinceBootMillis()); 2155 sb.append("/").append(mClock.getElapsedSinceBootMillis()); 2156 return sb.toString(); 2157 } 2158 2159 /** 2160 * Return the additional string to be logged by LogRec, default 2161 * 2162 * @param msg that was processed 2163 * @return information to be logged as a String 2164 */ 2165 @Override 2166 protected String getLogRecString(Message msg) { 2167 WifiConfiguration config; 2168 Long now; 2169 String report; 2170 String key; 2171 StringBuilder sb = new StringBuilder(); 2172 if (mScreenOn) { 2173 sb.append("!"); 2174 } 2175 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2176 sb.append("(").append(messageHandlingStatus).append(")"); 2177 } 2178 sb.append(smToString(msg)); 2179 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2180 sb.append(" uid=" + msg.sendingUid); 2181 } 2182 sb.append(" ").append(printTime()); 2183 switch (msg.what) { 2184 case CMD_START_SCAN: 2185 now = mClock.getWallClockMillis(); 2186 sb.append(" "); 2187 sb.append(Integer.toString(msg.arg1)); 2188 sb.append(" "); 2189 sb.append(Integer.toString(msg.arg2)); 2190 sb.append(" ic="); 2191 sb.append(Integer.toString(sScanAlarmIntentCount)); 2192 if (msg.obj != null) { 2193 Bundle bundle = (Bundle) msg.obj; 2194 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2195 if (request != 0) { 2196 sb.append(" proc(ms):").append(now - request); 2197 } 2198 } 2199 if (mIsScanOngoing) sb.append(" onGoing"); 2200 if (mIsFullScanOngoing) sb.append(" full"); 2201 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2202 sb.append(" f=").append(mWifiInfo.getFrequency()); 2203 sb.append(" sc=").append(mWifiInfo.score); 2204 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2205 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2206 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2207 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2208 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2209 if (lastScanFreqs != null) { 2210 sb.append(" list="); 2211 for(int freq : lastScanFreqs) { 2212 sb.append(freq).append(","); 2213 } 2214 } 2215 report = reportOnTime(); 2216 if (report != null) { 2217 sb.append(" ").append(report); 2218 } 2219 break; 2220 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2221 sb.append(" "); 2222 sb.append(Integer.toString(msg.arg1)); 2223 sb.append(" "); 2224 sb.append(Integer.toString(msg.arg2)); 2225 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2226 if (stateChangeResult != null) { 2227 sb.append(stateChangeResult.toString()); 2228 } 2229 break; 2230 case WifiManager.SAVE_NETWORK: 2231 sb.append(" "); 2232 sb.append(Integer.toString(msg.arg1)); 2233 sb.append(" "); 2234 sb.append(Integer.toString(msg.arg2)); 2235 config = (WifiConfiguration) msg.obj; 2236 if (config != null) { 2237 sb.append(" ").append(config.configKey()); 2238 sb.append(" nid=").append(config.networkId); 2239 if (config.hiddenSSID) { 2240 sb.append(" hidden"); 2241 } 2242 if (config.preSharedKey != null 2243 && !config.preSharedKey.equals("*")) { 2244 sb.append(" hasPSK"); 2245 } 2246 if (config.ephemeral) { 2247 sb.append(" ephemeral"); 2248 } 2249 if (config.selfAdded) { 2250 sb.append(" selfAdded"); 2251 } 2252 sb.append(" cuid=").append(config.creatorUid); 2253 sb.append(" suid=").append(config.lastUpdateUid); 2254 } 2255 break; 2256 case WifiManager.FORGET_NETWORK: 2257 sb.append(" "); 2258 sb.append(Integer.toString(msg.arg1)); 2259 sb.append(" "); 2260 sb.append(Integer.toString(msg.arg2)); 2261 config = (WifiConfiguration) msg.obj; 2262 if (config != null) { 2263 sb.append(" ").append(config.configKey()); 2264 sb.append(" nid=").append(config.networkId); 2265 if (config.hiddenSSID) { 2266 sb.append(" hidden"); 2267 } 2268 if (config.preSharedKey != null) { 2269 sb.append(" hasPSK"); 2270 } 2271 if (config.ephemeral) { 2272 sb.append(" ephemeral"); 2273 } 2274 if (config.selfAdded) { 2275 sb.append(" selfAdded"); 2276 } 2277 sb.append(" cuid=").append(config.creatorUid); 2278 sb.append(" suid=").append(config.lastUpdateUid); 2279 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2280 config.getNetworkSelectionStatus(); 2281 sb.append(" ajst=").append( 2282 netWorkSelectionStatus.getNetworkStatusString()); 2283 } 2284 break; 2285 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2286 sb.append(" "); 2287 sb.append(Integer.toString(msg.arg1)); 2288 sb.append(" "); 2289 sb.append(Integer.toString(msg.arg2)); 2290 String bssid = (String) msg.obj; 2291 if (bssid != null && bssid.length() > 0) { 2292 sb.append(" "); 2293 sb.append(bssid); 2294 } 2295 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2296 break; 2297 case WifiMonitor.SCAN_RESULTS_EVENT: 2298 sb.append(" "); 2299 sb.append(Integer.toString(msg.arg1)); 2300 sb.append(" "); 2301 sb.append(Integer.toString(msg.arg2)); 2302 if (mScanResults != null) { 2303 sb.append(" found="); 2304 sb.append(mScanResults.size()); 2305 } 2306 sb.append(" known=").append(mNumScanResultsKnown); 2307 sb.append(" got=").append(mNumScanResultsReturned); 2308 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2309 sb.append(String.format(" con=%d", mConnectionReqCount)); 2310 sb.append(String.format(" untrustedcn=%d", mUntrustedReqCount)); 2311 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2312 if (key != null) { 2313 sb.append(" last=").append(key); 2314 } 2315 break; 2316 case WifiMonitor.SCAN_FAILED_EVENT: 2317 break; 2318 case WifiMonitor.NETWORK_CONNECTION_EVENT: 2319 sb.append(" "); 2320 sb.append(Integer.toString(msg.arg1)); 2321 sb.append(" "); 2322 sb.append(Integer.toString(msg.arg2)); 2323 sb.append(" ").append(mLastBssid); 2324 sb.append(" nid=").append(mLastNetworkId); 2325 config = getCurrentWifiConfiguration(); 2326 if (config != null) { 2327 sb.append(" ").append(config.configKey()); 2328 } 2329 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2330 if (key != null) { 2331 sb.append(" last=").append(key); 2332 } 2333 break; 2334 case CMD_TARGET_BSSID: 2335 case CMD_ASSOCIATED_BSSID: 2336 sb.append(" "); 2337 sb.append(Integer.toString(msg.arg1)); 2338 sb.append(" "); 2339 sb.append(Integer.toString(msg.arg2)); 2340 if (msg.obj != null) { 2341 sb.append(" BSSID=").append((String) msg.obj); 2342 } 2343 if (mTargetRoamBSSID != null) { 2344 sb.append(" Target=").append(mTargetRoamBSSID); 2345 } 2346 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2347 break; 2348 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 2349 if (msg.obj != null) { 2350 sb.append(" ").append((String) msg.obj); 2351 } 2352 sb.append(" nid=").append(msg.arg1); 2353 sb.append(" reason=").append(msg.arg2); 2354 if (mLastBssid != null) { 2355 sb.append(" lastbssid=").append(mLastBssid); 2356 } 2357 if (mWifiInfo.getFrequency() != -1) { 2358 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2359 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2360 } 2361 if (isLinkDebouncing()) { 2362 sb.append(" debounce"); 2363 } 2364 break; 2365 case WifiMonitor.SSID_TEMP_DISABLED: 2366 case WifiMonitor.SSID_REENABLED: 2367 sb.append(" nid=").append(msg.arg1); 2368 if (msg.obj != null) { 2369 sb.append(" ").append((String) msg.obj); 2370 } 2371 config = getCurrentWifiConfiguration(); 2372 if (config != null) { 2373 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2374 config.getNetworkSelectionStatus(); 2375 sb.append(" cur=").append(config.configKey()); 2376 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 2377 if (config.selfAdded) { 2378 sb.append(" selfAdded"); 2379 } 2380 if (config.status != 0) { 2381 sb.append(" st=").append(config.status); 2382 sb.append(" rs=").append( 2383 netWorkSelectionStatus.getNetworkDisableReasonString()); 2384 } 2385 if (config.lastConnected != 0) { 2386 now = mClock.getWallClockMillis(); 2387 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 2388 } 2389 if (mLastBssid != null) { 2390 sb.append(" lastbssid=").append(mLastBssid); 2391 } 2392 if (mWifiInfo.getFrequency() != -1) { 2393 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2394 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2395 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 2396 } 2397 } 2398 break; 2399 case CMD_RSSI_POLL: 2400 case CMD_UNWANTED_NETWORK: 2401 case WifiManager.RSSI_PKTCNT_FETCH: 2402 sb.append(" "); 2403 sb.append(Integer.toString(msg.arg1)); 2404 sb.append(" "); 2405 sb.append(Integer.toString(msg.arg2)); 2406 if (mWifiInfo.getSSID() != null) 2407 if (mWifiInfo.getSSID() != null) 2408 sb.append(" ").append(mWifiInfo.getSSID()); 2409 if (mWifiInfo.getBSSID() != null) 2410 sb.append(" ").append(mWifiInfo.getBSSID()); 2411 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2412 sb.append(" f=").append(mWifiInfo.getFrequency()); 2413 sb.append(" sc=").append(mWifiInfo.score); 2414 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2415 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2416 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2417 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2418 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2419 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2420 report = reportOnTime(); 2421 if (report != null) { 2422 sb.append(" ").append(report); 2423 } 2424 if (mWifiScoreReport.isLastReportValid()) { 2425 sb.append(mWifiScoreReport.getLastReport()); 2426 } 2427 break; 2428 case CMD_START_CONNECT: 2429 case WifiManager.CONNECT_NETWORK: 2430 sb.append(" "); 2431 sb.append(Integer.toString(msg.arg1)); 2432 sb.append(" "); 2433 sb.append(Integer.toString(msg.arg2)); 2434 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2435 if (config != null) { 2436 sb.append(" ").append(config.configKey()); 2437 if (config.visibility != null) { 2438 sb.append(" ").append(config.visibility.toString()); 2439 } 2440 } 2441 if (mTargetRoamBSSID != null) { 2442 sb.append(" ").append(mTargetRoamBSSID); 2443 } 2444 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2445 config = getCurrentWifiConfiguration(); 2446 if (config != null) { 2447 sb.append(config.configKey()); 2448 if (config.visibility != null) { 2449 sb.append(" ").append(config.visibility.toString()); 2450 } 2451 } 2452 break; 2453 case CMD_START_ROAM: 2454 sb.append(" "); 2455 sb.append(Integer.toString(msg.arg1)); 2456 sb.append(" "); 2457 sb.append(Integer.toString(msg.arg2)); 2458 ScanResult result = (ScanResult) msg.obj; 2459 if (result != null) { 2460 now = mClock.getWallClockMillis(); 2461 sb.append(" bssid=").append(result.BSSID); 2462 sb.append(" rssi=").append(result.level); 2463 sb.append(" freq=").append(result.frequency); 2464 if (result.seen > 0 && result.seen < now) { 2465 sb.append(" seen=").append(now - result.seen); 2466 } else { 2467 // Somehow the timestamp for this scan result is inconsistent 2468 sb.append(" !seen=").append(result.seen); 2469 } 2470 } 2471 if (mTargetRoamBSSID != null) { 2472 sb.append(" ").append(mTargetRoamBSSID); 2473 } 2474 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2475 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 2476 break; 2477 case CMD_ADD_OR_UPDATE_NETWORK: 2478 sb.append(" "); 2479 sb.append(Integer.toString(msg.arg1)); 2480 sb.append(" "); 2481 sb.append(Integer.toString(msg.arg2)); 2482 if (msg.obj != null) { 2483 config = (WifiConfiguration) msg.obj; 2484 sb.append(" ").append(config.configKey()); 2485 sb.append(" prio=").append(config.priority); 2486 sb.append(" status=").append(config.status); 2487 if (config.BSSID != null) { 2488 sb.append(" ").append(config.BSSID); 2489 } 2490 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 2491 if (curConfig != null) { 2492 if (curConfig.configKey().equals(config.configKey())) { 2493 sb.append(" is current"); 2494 } else { 2495 sb.append(" current=").append(curConfig.configKey()); 2496 sb.append(" prio=").append(curConfig.priority); 2497 sb.append(" status=").append(curConfig.status); 2498 } 2499 } 2500 } 2501 break; 2502 case WifiManager.DISABLE_NETWORK: 2503 case CMD_ENABLE_NETWORK: 2504 sb.append(" "); 2505 sb.append(Integer.toString(msg.arg1)); 2506 sb.append(" "); 2507 sb.append(Integer.toString(msg.arg2)); 2508 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2509 if (key != null) { 2510 sb.append(" last=").append(key); 2511 } 2512 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2513 if (config != null && (key == null || !config.configKey().equals(key))) { 2514 sb.append(" target=").append(key); 2515 } 2516 break; 2517 case CMD_GET_CONFIGURED_NETWORKS: 2518 sb.append(" "); 2519 sb.append(Integer.toString(msg.arg1)); 2520 sb.append(" "); 2521 sb.append(Integer.toString(msg.arg2)); 2522 sb.append(" num=").append(mWifiConfigManager.getConfiguredNetworks().size()); 2523 break; 2524 case DhcpClient.CMD_PRE_DHCP_ACTION: 2525 sb.append(" "); 2526 sb.append(Integer.toString(msg.arg1)); 2527 sb.append(" "); 2528 sb.append(Integer.toString(msg.arg2)); 2529 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 2530 sb.append(",").append(mWifiInfo.txBad); 2531 sb.append(",").append(mWifiInfo.txRetries); 2532 break; 2533 case DhcpClient.CMD_POST_DHCP_ACTION: 2534 sb.append(" "); 2535 sb.append(Integer.toString(msg.arg1)); 2536 sb.append(" "); 2537 sb.append(Integer.toString(msg.arg2)); 2538 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2539 sb.append(" OK "); 2540 } else if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2541 sb.append(" FAIL "); 2542 } 2543 if (mLinkProperties != null) { 2544 sb.append(" "); 2545 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2546 } 2547 break; 2548 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 2549 sb.append(" "); 2550 sb.append(Integer.toString(msg.arg1)); 2551 sb.append(" "); 2552 sb.append(Integer.toString(msg.arg2)); 2553 if (msg.obj != null) { 2554 NetworkInfo info = (NetworkInfo) msg.obj; 2555 NetworkInfo.State state = info.getState(); 2556 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 2557 if (state != null) { 2558 sb.append(" st=").append(state); 2559 } 2560 if (detailedState != null) { 2561 sb.append("/").append(detailedState); 2562 } 2563 } 2564 break; 2565 case CMD_IP_CONFIGURATION_LOST: 2566 int count = -1; 2567 WifiConfiguration c = getCurrentWifiConfiguration(); 2568 if (c != null) { 2569 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 2570 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 2571 } 2572 sb.append(" "); 2573 sb.append(Integer.toString(msg.arg1)); 2574 sb.append(" "); 2575 sb.append(Integer.toString(msg.arg2)); 2576 sb.append(" failures: "); 2577 sb.append(Integer.toString(count)); 2578 sb.append("/"); 2579 sb.append(Integer.toString(mFacade.getIntegerSetting( 2580 mContext, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, 0))); 2581 if (mWifiInfo.getBSSID() != null) { 2582 sb.append(" ").append(mWifiInfo.getBSSID()); 2583 } 2584 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2585 break; 2586 case CMD_UPDATE_LINKPROPERTIES: 2587 sb.append(" "); 2588 sb.append(Integer.toString(msg.arg1)); 2589 sb.append(" "); 2590 sb.append(Integer.toString(msg.arg2)); 2591 if (mLinkProperties != null) { 2592 sb.append(" "); 2593 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2594 } 2595 break; 2596 case CMD_IP_REACHABILITY_LOST: 2597 if (msg.obj != null) { 2598 sb.append(" ").append((String) msg.obj); 2599 } 2600 break; 2601 case CMD_INSTALL_PACKET_FILTER: 2602 sb.append(" len=" + ((byte[])msg.obj).length); 2603 break; 2604 case CMD_SET_FALLBACK_PACKET_FILTERING: 2605 sb.append(" enabled=" + (boolean)msg.obj); 2606 break; 2607 case CMD_ROAM_WATCHDOG_TIMER: 2608 sb.append(" "); 2609 sb.append(Integer.toString(msg.arg1)); 2610 sb.append(" "); 2611 sb.append(Integer.toString(msg.arg2)); 2612 sb.append(" cur=").append(roamWatchdogCount); 2613 break; 2614 case CMD_DISCONNECTING_WATCHDOG_TIMER: 2615 sb.append(" "); 2616 sb.append(Integer.toString(msg.arg1)); 2617 sb.append(" "); 2618 sb.append(Integer.toString(msg.arg2)); 2619 sb.append(" cur=").append(disconnectingWatchdogCount); 2620 break; 2621 case CMD_START_RSSI_MONITORING_OFFLOAD: 2622 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 2623 case CMD_RSSI_THRESHOLD_BREACH: 2624 sb.append(" rssi="); 2625 sb.append(Integer.toString(msg.arg1)); 2626 sb.append(" thresholds="); 2627 sb.append(Arrays.toString(mRssiRanges)); 2628 break; 2629 case CMD_USER_SWITCH: 2630 sb.append(" userId="); 2631 sb.append(Integer.toString(msg.arg1)); 2632 break; 2633 case CMD_IPV4_PROVISIONING_SUCCESS: 2634 sb.append(" "); 2635 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2636 sb.append("DHCP_OK"); 2637 } else if (msg.arg1 == CMD_STATIC_IP_SUCCESS) { 2638 sb.append("STATIC_OK"); 2639 } else { 2640 sb.append(Integer.toString(msg.arg1)); 2641 } 2642 break; 2643 case CMD_IPV4_PROVISIONING_FAILURE: 2644 sb.append(" "); 2645 if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2646 sb.append("DHCP_FAIL"); 2647 } else if (msg.arg1 == CMD_STATIC_IP_FAILURE) { 2648 sb.append("STATIC_FAIL"); 2649 } else { 2650 sb.append(Integer.toString(msg.arg1)); 2651 } 2652 break; 2653 default: 2654 sb.append(" "); 2655 sb.append(Integer.toString(msg.arg1)); 2656 sb.append(" "); 2657 sb.append(Integer.toString(msg.arg2)); 2658 break; 2659 } 2660 2661 return sb.toString(); 2662 } 2663 2664 private void handleScreenStateChanged(boolean screenOn) { 2665 mScreenOn = screenOn; 2666 if (mVerboseLoggingEnabled) { 2667 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 2668 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 2669 + " state " + getCurrentState().getName() 2670 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 2671 } 2672 enableRssiPolling(screenOn); 2673 if (mUserWantsSuspendOpt.get()) { 2674 int shouldReleaseWakeLock = 0; 2675 if (screenOn) { 2676 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, shouldReleaseWakeLock); 2677 } else { 2678 if (isConnected()) { 2679 // Allow 2s for suspend optimizations to be set 2680 mSuspendWakeLock.acquire(2000); 2681 shouldReleaseWakeLock = 1; 2682 } 2683 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, shouldReleaseWakeLock); 2684 } 2685 } 2686 2687 getWifiLinkLayerStats(); 2688 mOnTimeScreenStateChange = mOnTime; 2689 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 2690 2691 mWifiMetrics.setScreenState(screenOn); 2692 2693 if (mWifiConnectivityManager != null) { 2694 mWifiConnectivityManager.handleScreenStateChanged(screenOn); 2695 } 2696 2697 if (mVerboseLoggingEnabled) log("handleScreenStateChanged Exit: " + screenOn); 2698 } 2699 2700 private void checkAndSetConnectivityInstance() { 2701 if (mCm == null) { 2702 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2703 } 2704 } 2705 2706 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 2707 if (mVerboseLoggingEnabled) { 2708 log("setSuspendOptimizationsNative: " + reason + " " + enabled 2709 + " -want " + mUserWantsSuspendOpt.get() 2710 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2711 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2712 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2713 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2714 } 2715 //mWifiNative.setSuspendOptimizations(enabled); 2716 2717 if (enabled) { 2718 mSuspendOptNeedsDisabled &= ~reason; 2719 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 2720 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 2721 if (mVerboseLoggingEnabled) { 2722 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 2723 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2724 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2725 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2726 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2727 } 2728 mWifiNative.setSuspendOptimizations(true); 2729 } 2730 } else { 2731 mSuspendOptNeedsDisabled |= reason; 2732 mWifiNative.setSuspendOptimizations(false); 2733 } 2734 } 2735 2736 private void setSuspendOptimizations(int reason, boolean enabled) { 2737 if (mVerboseLoggingEnabled) log("setSuspendOptimizations: " + reason + " " + enabled); 2738 if (enabled) { 2739 mSuspendOptNeedsDisabled &= ~reason; 2740 } else { 2741 mSuspendOptNeedsDisabled |= reason; 2742 } 2743 if (mVerboseLoggingEnabled) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2744 } 2745 2746 private void setWifiState(int wifiState) { 2747 final int previousWifiState = mWifiState.get(); 2748 2749 try { 2750 if (wifiState == WIFI_STATE_ENABLED) { 2751 mBatteryStats.noteWifiOn(); 2752 } else if (wifiState == WIFI_STATE_DISABLED) { 2753 mBatteryStats.noteWifiOff(); 2754 } 2755 } catch (RemoteException e) { 2756 loge("Failed to note battery stats in wifi"); 2757 } 2758 2759 mWifiState.set(wifiState); 2760 2761 if (mVerboseLoggingEnabled) log("setWifiState: " + syncGetWifiStateByName()); 2762 2763 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 2764 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2765 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 2766 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 2767 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2768 } 2769 2770 private void setWifiApState(int wifiApState, int reason) { 2771 final int previousWifiApState = mWifiApState.get(); 2772 2773 try { 2774 if (wifiApState == WIFI_AP_STATE_ENABLED) { 2775 mBatteryStats.noteWifiOn(); 2776 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 2777 mBatteryStats.noteWifiOff(); 2778 } 2779 } catch (RemoteException e) { 2780 loge("Failed to note battery stats in wifi"); 2781 } 2782 2783 // Update state 2784 mWifiApState.set(wifiApState); 2785 2786 if (mVerboseLoggingEnabled) log("setWifiApState: " + syncGetWifiApStateByName()); 2787 2788 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 2789 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2790 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 2791 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 2792 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 2793 //only set reason number when softAP start failed 2794 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 2795 } 2796 2797 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2798 } 2799 2800 private void setScanResults() { 2801 mNumScanResultsKnown = 0; 2802 mNumScanResultsReturned = 0; 2803 2804 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 2805 2806 if (scanResults.isEmpty()) { 2807 mScanResults = new ArrayList<>(); 2808 return; 2809 } 2810 2811 // TODO(b/31065385): mWifiConfigManager.trimANQPCache(false); 2812 2813 boolean connected = mLastBssid != null; 2814 long activeBssid = 0L; 2815 if (connected) { 2816 try { 2817 activeBssid = Utils.parseMac(mLastBssid); 2818 } catch (IllegalArgumentException iae) { 2819 connected = false; 2820 } 2821 } 2822 2823 synchronized (mScanResultsLock) { 2824 mScanResults = scanResults; 2825 mNumScanResultsReturned = mScanResults.size(); 2826 } 2827 2828 if (isLinkDebouncing()) { 2829 // If debouncing, we dont re-select a SSID or BSSID hence 2830 // there is no need to call the network selection code 2831 // in WifiAutoJoinController, instead, 2832 // just try to reconnect to the same SSID by triggering a roam 2833 // The third parameter 1 means roam not from network selection but debouncing 2834 sendMessage(CMD_START_ROAM, mLastNetworkId, 1, null); 2835 } 2836 } 2837 2838 /* 2839 * Fetch RSSI, linkspeed, and frequency on current connection 2840 */ 2841 private void fetchRssiLinkSpeedAndFrequencyNative() { 2842 Integer newRssi = null; 2843 Integer newLinkSpeed = null; 2844 Integer newFrequency = null; 2845 WifiNative.SignalPollResult pollResult = mWifiNative.signalPoll(); 2846 if (pollResult == null) { 2847 return; 2848 } 2849 2850 newRssi = pollResult.currentRssi; 2851 newLinkSpeed = pollResult.txBitrate; 2852 newFrequency = pollResult.associationFrequency; 2853 2854 if (mVerboseLoggingEnabled) { 2855 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 2856 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 2857 } 2858 2859 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 2860 // screen out invalid values 2861 /* some implementations avoid negative values by adding 256 2862 * so we need to adjust for that here. 2863 */ 2864 if (newRssi > 0) newRssi -= 256; 2865 mWifiInfo.setRssi(newRssi); 2866 /* 2867 * Log the rssi poll value in metrics 2868 */ 2869 mWifiMetrics.incrementRssiPollRssiCount(newRssi); 2870 /* 2871 * Rather then sending the raw RSSI out every time it 2872 * changes, we precalculate the signal level that would 2873 * be displayed in the status bar, and only send the 2874 * broadcast if that much more coarse-grained number 2875 * changes. This cuts down greatly on the number of 2876 * broadcasts, at the cost of not informing others 2877 * interested in RSSI of all the changes in signal 2878 * level. 2879 */ 2880 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 2881 if (newSignalLevel != mLastSignalLevel) { 2882 updateCapabilities(getCurrentWifiConfiguration()); 2883 sendRssiChangeBroadcast(newRssi); 2884 } 2885 mLastSignalLevel = newSignalLevel; 2886 } else { 2887 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 2888 updateCapabilities(getCurrentWifiConfiguration()); 2889 } 2890 2891 if (newLinkSpeed != null) { 2892 mWifiInfo.setLinkSpeed(newLinkSpeed); 2893 } 2894 if (newFrequency != null && newFrequency > 0) { 2895 if (ScanResult.is5GHz(newFrequency)) { 2896 mWifiConnectionStatistics.num5GhzConnected++; 2897 } 2898 if (ScanResult.is24GHz(newFrequency)) { 2899 mWifiConnectionStatistics.num24GhzConnected++; 2900 } 2901 mWifiInfo.setFrequency(newFrequency); 2902 } 2903 mWifiConfigManager.updateScanDetailCacheFromWifiInfo(mWifiInfo); 2904 } 2905 2906 // Polling has completed, hence we wont have a score anymore 2907 private void cleanWifiScore() { 2908 mWifiInfo.txBadRate = 0; 2909 mWifiInfo.txSuccessRate = 0; 2910 mWifiInfo.txRetriesRate = 0; 2911 mWifiInfo.rxSuccessRate = 0; 2912 mWifiScoreReport.reset(); 2913 } 2914 2915 private void updateLinkProperties(LinkProperties newLp) { 2916 if (mVerboseLoggingEnabled) { 2917 log("Link configuration changed for netId: " + mLastNetworkId 2918 + " old: " + mLinkProperties + " new: " + newLp); 2919 } 2920 // We own this instance of LinkProperties because IpManager passes us a copy. 2921 mLinkProperties = newLp; 2922 if (mNetworkAgent != null) { 2923 mNetworkAgent.sendLinkProperties(mLinkProperties); 2924 } 2925 2926 if (getNetworkDetailedState() == DetailedState.CONNECTED) { 2927 // If anything has changed and we're already connected, send out a notification. 2928 // TODO: Update all callers to use NetworkCallbacks and delete this. 2929 sendLinkConfigurationChangedBroadcast(); 2930 } 2931 2932 if (mVerboseLoggingEnabled) { 2933 StringBuilder sb = new StringBuilder(); 2934 sb.append("updateLinkProperties nid: " + mLastNetworkId); 2935 sb.append(" state: " + getNetworkDetailedState()); 2936 2937 if (mLinkProperties != null) { 2938 sb.append(" "); 2939 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2940 } 2941 logd(sb.toString()); 2942 } 2943 } 2944 2945 /** 2946 * Clears all our link properties. 2947 */ 2948 private void clearLinkProperties() { 2949 // Clear the link properties obtained from DHCP. The only caller of this 2950 // function has already called IpManager#stop(), which clears its state. 2951 synchronized (mDhcpResultsLock) { 2952 if (mDhcpResults != null) { 2953 mDhcpResults.clear(); 2954 } 2955 } 2956 2957 // Now clear the merged link properties. 2958 mLinkProperties.clear(); 2959 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 2960 } 2961 2962 /** 2963 * try to update default route MAC address. 2964 */ 2965 private String updateDefaultRouteMacAddress(int timeout) { 2966 String address = null; 2967 for (RouteInfo route : mLinkProperties.getRoutes()) { 2968 if (route.isDefaultRoute() && route.hasGateway()) { 2969 InetAddress gateway = route.getGateway(); 2970 if (gateway instanceof Inet4Address) { 2971 if (mVerboseLoggingEnabled) { 2972 logd("updateDefaultRouteMacAddress found Ipv4 default :" 2973 + gateway.getHostAddress()); 2974 } 2975 address = macAddressFromRoute(gateway.getHostAddress()); 2976 /* The gateway's MAC address is known */ 2977 if ((address == null) && (timeout > 0)) { 2978 boolean reachable = false; 2979 TrafficStats.setThreadStatsTag(TrafficStats.TAG_SYSTEM_PROBE); 2980 try { 2981 reachable = gateway.isReachable(timeout); 2982 } catch (Exception e) { 2983 loge("updateDefaultRouteMacAddress exception reaching :" 2984 + gateway.getHostAddress()); 2985 2986 } finally { 2987 TrafficStats.clearThreadStatsTag(); 2988 if (reachable == true) { 2989 2990 address = macAddressFromRoute(gateway.getHostAddress()); 2991 if (mVerboseLoggingEnabled) { 2992 logd("updateDefaultRouteMacAddress reachable (tried again) :" 2993 + gateway.getHostAddress() + " found " + address); 2994 } 2995 } 2996 } 2997 } 2998 if (address != null) { 2999 mWifiConfigManager.setNetworkDefaultGwMacAddress(mLastNetworkId, address); 3000 } 3001 } 3002 } 3003 } 3004 return address; 3005 } 3006 3007 private void sendRssiChangeBroadcast(final int newRssi) { 3008 try { 3009 mBatteryStats.noteWifiRssiChanged(newRssi); 3010 } catch (RemoteException e) { 3011 // Won't happen. 3012 } 3013 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 3014 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3015 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 3016 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3017 } 3018 3019 private void sendNetworkStateChangeBroadcast(String bssid) { 3020 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 3021 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3022 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 3023 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3024 if (bssid != null) 3025 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 3026 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 3027 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 3028 // We no longer report MAC address to third-parties and our code does 3029 // not rely on this broadcast, so just send the default MAC address. 3030 fetchRssiLinkSpeedAndFrequencyNative(); 3031 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 3032 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3033 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 3034 } 3035 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3036 } 3037 3038 private WifiInfo getWiFiInfoForUid(int uid) { 3039 if (Binder.getCallingUid() == Process.myUid()) { 3040 return mWifiInfo; 3041 } 3042 3043 WifiInfo result = new WifiInfo(mWifiInfo); 3044 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3045 3046 IBinder binder = mFacade.getService("package"); 3047 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 3048 3049 try { 3050 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 3051 uid) == PackageManager.PERMISSION_GRANTED) { 3052 result.setMacAddress(mWifiInfo.getMacAddress()); 3053 } 3054 } catch (RemoteException e) { 3055 Log.e(TAG, "Error checking receiver permission", e); 3056 } 3057 3058 return result; 3059 } 3060 3061 private void sendLinkConfigurationChangedBroadcast() { 3062 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 3063 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3064 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3065 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3066 } 3067 3068 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 3069 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 3070 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3071 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 3072 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3073 } 3074 3075 /** 3076 * Record the detailed state of a network. 3077 * 3078 * @param state the new {@code DetailedState} 3079 */ 3080 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 3081 boolean hidden = false; 3082 3083 if (isLinkDebouncing() || isRoaming()) { 3084 // There is generally a confusion in the system about colluding 3085 // WiFi Layer 2 state (as reported by supplicant) and the Network state 3086 // which leads to multiple confusion. 3087 // 3088 // If link is de-bouncing or roaming, we already have an IP address 3089 // as well we were connected and are doing L2 cycles of 3090 // reconnecting or renewing IP address to check that we still have it 3091 // This L2 link flapping should ne be reflected into the Network state 3092 // which is the state of the WiFi Network visible to Layer 3 and applications 3093 // Note that once debouncing and roaming are completed, we will 3094 // set the Network state to where it should be, or leave it as unchanged 3095 // 3096 hidden = true; 3097 } 3098 if (mVerboseLoggingEnabled) { 3099 log("setDetailed state, old =" 3100 + mNetworkInfo.getDetailedState() + " and new state=" + state 3101 + " hidden=" + hidden); 3102 } 3103 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 3104 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 3105 // Always indicate that SSID has changed 3106 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 3107 if (mVerboseLoggingEnabled) { 3108 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 3109 } 3110 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 3111 sendNetworkStateChangeBroadcast(null); 3112 } 3113 } 3114 if (hidden == true) { 3115 return false; 3116 } 3117 3118 if (state != mNetworkInfo.getDetailedState()) { 3119 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 3120 if (mNetworkAgent != null) { 3121 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3122 } 3123 sendNetworkStateChangeBroadcast(null); 3124 return true; 3125 } 3126 return false; 3127 } 3128 3129 private DetailedState getNetworkDetailedState() { 3130 return mNetworkInfo.getDetailedState(); 3131 } 3132 3133 private SupplicantState handleSupplicantStateChange(Message message) { 3134 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 3135 SupplicantState state = stateChangeResult.state; 3136 // Supplicant state change 3137 // [31-13] Reserved for future use 3138 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 3139 // 50023 supplicant_state_changed (custom|1|5) 3140 mWifiInfo.setSupplicantState(state); 3141 // If we receive a supplicant state change with an empty SSID, 3142 // this implies that wpa_supplicant is already disconnected. 3143 // We should pretend we are still connected when linkDebouncing is on. 3144 if ((stateChangeResult.wifiSsid == null 3145 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) { 3146 return state; 3147 } 3148 // Network id is only valid when we start connecting 3149 if (SupplicantState.isConnecting(state)) { 3150 mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId)); 3151 } else { 3152 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 3153 } 3154 3155 mWifiInfo.setBSSID(stateChangeResult.BSSID); 3156 3157 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 3158 WifiConfiguration config = getCurrentWifiConfiguration(); 3159 if (config != null) { 3160 // Set meteredHint to true if the access network type of the connecting/connected AP 3161 // is a chargeable public network. 3162 ScanDetailCache scanDetailCache = mWifiConfigManager.getScanDetailCacheForNetwork( 3163 config.networkId); 3164 if (scanDetailCache != null) { 3165 ScanDetail scanDetail = scanDetailCache.getScanDetail(stateChangeResult.BSSID); 3166 if (scanDetail != null) { 3167 NetworkDetail networkDetail = scanDetail.getNetworkDetail(); 3168 if (networkDetail != null 3169 && networkDetail.getAnt() == NetworkDetail.Ant.ChargeablePublic) { 3170 mWifiInfo.setMeteredHint(true); 3171 } 3172 } 3173 } 3174 3175 mWifiInfo.setEphemeral(config.ephemeral); 3176 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3177 mWifiInfo.setMeteredHint(config.meteredHint); 3178 } 3179 } 3180 3181 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 3182 3183 return state; 3184 } 3185 3186 /** 3187 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 3188 * using the interface, stopping DHCP & disabling interface 3189 */ 3190 private void handleNetworkDisconnect() { 3191 if (mVerboseLoggingEnabled) { 3192 log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 3193 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3194 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3195 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3196 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3197 } 3198 3199 stopRssiMonitoringOffload(); 3200 3201 clearTargetBssid("handleNetworkDisconnect"); 3202 3203 stopIpManager(); 3204 3205 /* Reset data structures */ 3206 mWifiScoreReport.reset(); 3207 mWifiInfo.reset(); 3208 mIsLinkDebouncing = false; 3209 /* Reset roaming parameters */ 3210 mAutoRoaming = false; 3211 3212 setNetworkDetailedState(DetailedState.DISCONNECTED); 3213 if (mNetworkAgent != null) { 3214 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3215 mNetworkAgent = null; 3216 } 3217 3218 /* Clear network properties */ 3219 clearLinkProperties(); 3220 3221 /* Cend event to CM & network change broadcast */ 3222 sendNetworkStateChangeBroadcast(mLastBssid); 3223 3224 mLastBssid = null; 3225 registerDisconnected(); 3226 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 3227 } 3228 3229 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 3230 /* Socket connection can be lost when we do a graceful shutdown 3231 * or when the driver is hung. Ensure supplicant is stopped here. 3232 */ 3233 if (killSupplicant) { 3234 mWifiMonitor.stopAllMonitoring(); 3235 if (!mWifiNative.disableSupplicant()) { 3236 loge("Failed to disable supplicant after connection loss"); 3237 } 3238 } 3239 mWifiNative.closeSupplicantConnection(); 3240 sendSupplicantConnectionChangedBroadcast(false); 3241 setWifiState(WIFI_STATE_DISABLED); 3242 } 3243 3244 void handlePreDhcpSetup() { 3245 if (!mBluetoothConnectionActive) { 3246 /* 3247 * There are problems setting the Wi-Fi driver's power 3248 * mode to active when bluetooth coexistence mode is 3249 * enabled or sense. 3250 * <p> 3251 * We set Wi-Fi to active mode when 3252 * obtaining an IP address because we've found 3253 * compatibility issues with some routers with low power 3254 * mode. 3255 * <p> 3256 * In order for this active power mode to properly be set, 3257 * we disable coexistence mode until we're done with 3258 * obtaining an IP address. One exception is if we 3259 * are currently connected to a headset, since disabling 3260 * coexistence would interrupt that connection. 3261 */ 3262 // Disable the coexistence mode 3263 mWifiNative.setBluetoothCoexistenceMode( 3264 WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 3265 } 3266 3267 // Disable power save and suspend optimizations during DHCP 3268 // Note: The order here is important for now. Brcm driver changes 3269 // power settings when we control suspend mode optimizations. 3270 // TODO: Remove this comment when the driver is fixed. 3271 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 3272 mWifiNative.setPowerSave(false); 3273 3274 // Update link layer stats 3275 getWifiLinkLayerStats(); 3276 3277 if (mWifiP2pChannel != null) { 3278 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 3279 Message msg = new Message(); 3280 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 3281 msg.arg1 = WifiP2pServiceImpl.ENABLED; 3282 msg.arg2 = DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE; 3283 msg.obj = WifiStateMachine.this; 3284 mWifiP2pChannel.sendMessage(msg); 3285 } else { 3286 // If the p2p service is not running, we can proceed directly. 3287 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE); 3288 } 3289 } 3290 3291 void handlePostDhcpSetup() { 3292 /* Restore power save and suspend optimizations */ 3293 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 3294 mWifiNative.setPowerSave(true); 3295 3296 p2pSendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, WifiP2pServiceImpl.DISABLED); 3297 3298 // Set the coexistence mode back to its default value 3299 mWifiNative.setBluetoothCoexistenceMode( 3300 WifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 3301 } 3302 3303 private static final long DIAGS_CONNECT_TIMEOUT_MILLIS = 60 * 1000; 3304 private long mDiagsConnectionStartMillis = -1; 3305 /** 3306 * Inform other components that a new connection attempt is starting. 3307 */ 3308 private void reportConnectionAttemptStart( 3309 WifiConfiguration config, String targetBSSID, int roamType) { 3310 mWifiMetrics.startConnectionEvent(config, targetBSSID, roamType); 3311 mDiagsConnectionStartMillis = mClock.getElapsedSinceBootMillis(); 3312 mWifiDiagnostics.reportConnectionEvent( 3313 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_STARTED); 3314 sendMessageDelayed(CMD_DIAGS_CONNECT_TIMEOUT, 3315 mDiagsConnectionStartMillis, DIAGS_CONNECT_TIMEOUT_MILLIS); 3316 } 3317 3318 /** 3319 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3320 * has concluded. 3321 */ 3322 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3323 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3324 switch (level2FailureCode) { 3325 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3326 // Ideally, we'd wait until IP reachability has been confirmed. this code falls 3327 // short in two ways: 3328 // - at the time of the CMD_IP_CONFIGURATION_SUCCESSFUL event, we don't know if we 3329 // actually have ARP reachability. it might be better to wait until the wifi 3330 // network has been validated by IpManager. 3331 // - in the case of a roaming event (intra-SSID), we probably trigger when L2 is 3332 // complete. 3333 // 3334 // TODO(b/34181219): Fix the above. 3335 mWifiDiagnostics.reportConnectionEvent( 3336 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_SUCCEEDED); 3337 break; 3338 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3339 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3340 // WifiDiagnostics doesn't care about pre-empted connections, or cases 3341 // where we failed to initiate a connection attempt with supplicant. 3342 break; 3343 default: 3344 mWifiDiagnostics.reportConnectionEvent( 3345 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_FAILED); 3346 } 3347 mDiagsConnectionStartMillis = -1; 3348 } 3349 3350 private void handleIPv4Success(DhcpResults dhcpResults) { 3351 if (mVerboseLoggingEnabled) { 3352 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3353 logd("link address " + dhcpResults.ipAddress); 3354 } 3355 3356 Inet4Address addr; 3357 synchronized (mDhcpResultsLock) { 3358 mDhcpResults = dhcpResults; 3359 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3360 } 3361 3362 if (isRoaming()) { 3363 int previousAddress = mWifiInfo.getIpAddress(); 3364 int newAddress = NetworkUtils.inetAddressToInt(addr); 3365 if (previousAddress != newAddress) { 3366 logd("handleIPv4Success, roaming and address changed" + 3367 mWifiInfo + " got: " + addr); 3368 } 3369 } 3370 mWifiInfo.setInetAddress(addr); 3371 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3372 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3373 updateCapabilities(getCurrentWifiConfiguration()); 3374 } 3375 } 3376 3377 private void handleSuccessfulIpConfiguration() { 3378 mLastSignalLevel = -1; // Force update of signal strength 3379 WifiConfiguration c = getCurrentWifiConfiguration(); 3380 if (c != null) { 3381 // Reset IP failure tracking 3382 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3383 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3384 3385 // Tell the framework whether the newly connected network is trusted or untrusted. 3386 updateCapabilities(c); 3387 } 3388 if (c != null) { 3389 ScanResult result = getCurrentScanResult(); 3390 if (result == null) { 3391 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3392 c.configKey()); 3393 } else { 3394 // Clear the per BSSID failure count 3395 result.numIpConfigFailures = 0; 3396 } 3397 } 3398 } 3399 3400 private void handleIPv4Failure() { 3401 // TODO: Move this to provisioning failure, not DHCP failure. 3402 // DHCPv4 failure is expected on an IPv6-only network. 3403 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3404 if (mVerboseLoggingEnabled) { 3405 int count = -1; 3406 WifiConfiguration config = getCurrentWifiConfiguration(); 3407 if (config != null) { 3408 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3409 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3410 } 3411 log("DHCP failure count=" + count); 3412 } 3413 reportConnectionAttemptEnd( 3414 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3415 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3416 synchronized(mDhcpResultsLock) { 3417 if (mDhcpResults != null) { 3418 mDhcpResults.clear(); 3419 } 3420 } 3421 if (mVerboseLoggingEnabled) { 3422 logd("handleIPv4Failure"); 3423 } 3424 } 3425 3426 private void handleIpConfigurationLost() { 3427 mWifiInfo.setInetAddress(null); 3428 mWifiInfo.setMeteredHint(false); 3429 3430 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3431 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3432 3433 /* DHCP times out after about 30 seconds, we do a 3434 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3435 */ 3436 mWifiNative.disconnect(); 3437 } 3438 3439 // TODO: De-duplicated this and handleIpConfigurationLost(). 3440 private void handleIpReachabilityLost() { 3441 mWifiInfo.setInetAddress(null); 3442 mWifiInfo.setMeteredHint(false); 3443 3444 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3445 3446 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3447 mWifiNative.disconnect(); 3448 } 3449 3450 private byte[] macAddressFromString(String macString) { 3451 String[] macBytes = macString.split(":"); 3452 if (macBytes.length != 6) { 3453 throw new IllegalArgumentException("MAC address should be 6 bytes long!"); 3454 } 3455 byte[] mac = new byte[6]; 3456 for (int i = 0; i < macBytes.length; i++) { 3457 Integer hexVal = Integer.parseInt(macBytes[i], 16); 3458 mac[i] = hexVal.byteValue(); 3459 } 3460 return mac; 3461 } 3462 3463 /* 3464 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3465 * so as to record MAC address of default gateway. 3466 **/ 3467 private String macAddressFromRoute(String ipAddress) { 3468 String macAddress = null; 3469 BufferedReader reader = null; 3470 try { 3471 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3472 3473 // Skip over the line bearing colum titles 3474 String line = reader.readLine(); 3475 3476 while ((line = reader.readLine()) != null) { 3477 String[] tokens = line.split("[ ]+"); 3478 if (tokens.length < 6) { 3479 continue; 3480 } 3481 3482 // ARP column format is 3483 // Address HWType HWAddress Flags Mask IFace 3484 String ip = tokens[0]; 3485 String mac = tokens[3]; 3486 3487 if (ipAddress.equals(ip)) { 3488 macAddress = mac; 3489 break; 3490 } 3491 } 3492 3493 if (macAddress == null) { 3494 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3495 "/proc/net/arp"); 3496 } 3497 3498 } catch (FileNotFoundException e) { 3499 loge("Could not open /proc/net/arp to lookup mac address"); 3500 } catch (IOException e) { 3501 loge("Could not read /proc/net/arp to lookup mac address"); 3502 } finally { 3503 try { 3504 if (reader != null) { 3505 reader.close(); 3506 } 3507 } catch (IOException e) { 3508 // Do nothing 3509 } 3510 } 3511 return macAddress; 3512 3513 } 3514 3515 private class WifiNetworkFactory extends NetworkFactory { 3516 public WifiNetworkFactory(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 synchronized (mWifiReqCountLock) { 3523 if (++mConnectionReqCount == 1) { 3524 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3525 mWifiConnectivityManager.enable(true); 3526 } 3527 } 3528 } 3529 } 3530 3531 @Override 3532 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3533 synchronized (mWifiReqCountLock) { 3534 if (--mConnectionReqCount == 0) { 3535 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3536 mWifiConnectivityManager.enable(false); 3537 } 3538 } 3539 } 3540 } 3541 3542 @Override 3543 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3544 pw.println("mConnectionReqCount " + mConnectionReqCount); 3545 } 3546 3547 } 3548 3549 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3550 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3551 super(l, c, tag, f); 3552 } 3553 3554 @Override 3555 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3556 if (!networkRequest.networkCapabilities.hasCapability( 3557 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3558 synchronized (mWifiReqCountLock) { 3559 if (++mUntrustedReqCount == 1) { 3560 if (mWifiConnectivityManager != null) { 3561 if (mConnectionReqCount == 0) { 3562 mWifiConnectivityManager.enable(true); 3563 } 3564 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3565 } 3566 } 3567 } 3568 } 3569 } 3570 3571 @Override 3572 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3573 if (!networkRequest.networkCapabilities.hasCapability( 3574 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3575 synchronized (mWifiReqCountLock) { 3576 if (--mUntrustedReqCount == 0) { 3577 if (mWifiConnectivityManager != null) { 3578 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3579 if (mConnectionReqCount == 0) { 3580 mWifiConnectivityManager.enable(false); 3581 } 3582 } 3583 } 3584 } 3585 } 3586 } 3587 3588 @Override 3589 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3590 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3591 } 3592 } 3593 3594 void maybeRegisterNetworkFactory() { 3595 if (mNetworkFactory == null) { 3596 checkAndSetConnectivityInstance(); 3597 if (mCm != null) { 3598 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3599 NETWORKTYPE, mNetworkCapabilitiesFilter); 3600 mNetworkFactory.setScoreFilter(60); 3601 mNetworkFactory.register(); 3602 3603 // We can't filter untrusted network in the capabilities filter because a trusted 3604 // network would still satisfy a request that accepts untrusted ones. 3605 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3606 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3607 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3608 mUntrustedNetworkFactory.register(); 3609 } 3610 } 3611 } 3612 3613 /** 3614 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3615 * method allows WifiStateMachine to get these additional system services. 3616 * 3617 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3618 */ 3619 private void getAdditionalWifiServiceInterfaces() { 3620 // First set up Wifi Direct 3621 if (mP2pSupported) { 3622 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3623 WifiP2pServiceImpl wifiP2pServiceImpl = 3624 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3625 3626 if (wifiP2pServiceImpl != null) { 3627 mWifiP2pChannel = new AsyncChannel(); 3628 mWifiP2pChannel.connect(mContext, getHandler(), 3629 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3630 } 3631 } 3632 } 3633 3634 /******************************************************** 3635 * HSM states 3636 *******************************************************/ 3637 3638 class DefaultState extends State { 3639 3640 @Override 3641 public boolean processMessage(Message message) { 3642 logStateAndMessage(message, this); 3643 3644 switch (message.what) { 3645 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3646 AsyncChannel ac = (AsyncChannel) message.obj; 3647 if (ac == mWifiP2pChannel) { 3648 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3649 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3650 // since the p2p channel is connected, we should enable p2p if we are in 3651 // connect mode. We may not be in connect mode yet, we may have just 3652 // set the operational mode and started to set up for connect mode. 3653 if (mOperationalMode == CONNECT_MODE) { 3654 // This message will only be handled if we are in Connect mode. 3655 // If we are not in connect mode yet, this will be dropped and the 3656 // ConnectMode.enter method will call to enable p2p. 3657 sendMessage(CMD_ENABLE_P2P); 3658 } 3659 } else { 3660 // TODO: We should probably do some cleanup or attempt a retry 3661 // b/34283611 3662 loge("WifiP2pService connection failure, error=" + message.arg1); 3663 } 3664 } else { 3665 loge("got HALF_CONNECTED for unknown channel"); 3666 } 3667 break; 3668 } 3669 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3670 AsyncChannel ac = (AsyncChannel) message.obj; 3671 if (ac == mWifiP2pChannel) { 3672 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3673 //TODO: Re-establish connection to state machine after a delay (b/34283611) 3674 // mWifiP2pChannel.connect(mContext, getHandler(), 3675 // mWifiP2pManager.getMessenger()); 3676 } 3677 break; 3678 } 3679 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3680 mBluetoothConnectionActive = (message.arg1 != 3681 BluetoothAdapter.STATE_DISCONNECTED); 3682 break; 3683 /* Synchronous call returns */ 3684 case CMD_PING_SUPPLICANT: 3685 case CMD_ENABLE_NETWORK: 3686 case CMD_ADD_OR_UPDATE_NETWORK: 3687 case CMD_REMOVE_NETWORK: 3688 case CMD_SAVE_CONFIG: 3689 replyToMessage(message, message.what, FAILURE); 3690 break; 3691 case CMD_GET_CONFIGURED_NETWORKS: 3692 replyToMessage(message, message.what, mWifiConfigManager.getSavedNetworks()); 3693 break; 3694 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3695 replyToMessage(message, message.what, 3696 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 3697 break; 3698 case CMD_ENABLE_RSSI_POLL: 3699 mEnableRssiPolling = (message.arg1 == 1); 3700 break; 3701 case CMD_SET_HIGH_PERF_MODE: 3702 if (message.arg1 == 1) { 3703 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3704 } else { 3705 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3706 } 3707 break; 3708 case CMD_INITIALIZE: 3709 boolean ok = mWifiNative.initializeVendorHal(); 3710 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 3711 break; 3712 case CMD_BOOT_COMPLETED: 3713 // get other services that we need to manage 3714 getAdditionalWifiServiceInterfaces(); 3715 if (!mWifiConfigManager.loadFromStore()) { 3716 Log.e(TAG, "Failed to load from config store"); 3717 } 3718 maybeRegisterNetworkFactory(); 3719 break; 3720 case CMD_SCREEN_STATE_CHANGED: 3721 handleScreenStateChanged(message.arg1 != 0); 3722 break; 3723 /* Discard */ 3724 case CMD_START_SCAN: 3725 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3726 break; 3727 case CMD_START_SUPPLICANT: 3728 case CMD_STOP_SUPPLICANT: 3729 case CMD_STOP_SUPPLICANT_FAILED: 3730 case CMD_DRIVER_START_TIMED_OUT: 3731 case CMD_START_AP: 3732 case CMD_START_AP_FAILURE: 3733 case CMD_STOP_AP: 3734 case CMD_AP_STOPPED: 3735 case CMD_DISCONNECT: 3736 case CMD_RECONNECT: 3737 case CMD_REASSOCIATE: 3738 case CMD_RELOAD_TLS_AND_RECONNECT: 3739 case WifiMonitor.SUP_CONNECTION_EVENT: 3740 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3741 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3742 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3743 case WifiMonitor.SCAN_RESULTS_EVENT: 3744 case WifiMonitor.SCAN_FAILED_EVENT: 3745 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3746 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3747 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3748 case WifiMonitor.WPS_OVERLAP_EVENT: 3749 case CMD_SET_OPERATIONAL_MODE: 3750 case CMD_RSSI_POLL: 3751 case DhcpClient.CMD_PRE_DHCP_ACTION: 3752 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3753 case DhcpClient.CMD_POST_DHCP_ACTION: 3754 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3755 case CMD_ENABLE_P2P: 3756 case CMD_DISABLE_P2P_RSP: 3757 case WifiMonitor.SUP_REQUEST_IDENTITY: 3758 case CMD_TEST_NETWORK_DISCONNECT: 3759 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3760 case CMD_TARGET_BSSID: 3761 case CMD_START_CONNECT: 3762 case CMD_START_ROAM: 3763 case CMD_ASSOCIATED_BSSID: 3764 case CMD_UNWANTED_NETWORK: 3765 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3766 case CMD_ROAM_WATCHDOG_TIMER: 3767 case CMD_DISABLE_EPHEMERAL_NETWORK: 3768 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3769 break; 3770 case CMD_SET_SUSPEND_OPT_ENABLED: 3771 if (message.arg1 == 1) { 3772 if (message.arg2 == 1) { 3773 mSuspendWakeLock.release(); 3774 } 3775 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3776 } else { 3777 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3778 } 3779 break; 3780 case WifiMonitor.DRIVER_HUNG_EVENT: 3781 setSupplicantRunning(false); 3782 setSupplicantRunning(true); 3783 break; 3784 case WifiManager.CONNECT_NETWORK: 3785 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3786 WifiManager.BUSY); 3787 break; 3788 case WifiManager.FORGET_NETWORK: 3789 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 3790 WifiManager.BUSY); 3791 break; 3792 case WifiManager.SAVE_NETWORK: 3793 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3794 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3795 WifiManager.BUSY); 3796 break; 3797 case WifiManager.START_WPS: 3798 replyToMessage(message, WifiManager.WPS_FAILED, 3799 WifiManager.BUSY); 3800 break; 3801 case WifiManager.CANCEL_WPS: 3802 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3803 WifiManager.BUSY); 3804 break; 3805 case WifiManager.DISABLE_NETWORK: 3806 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3807 WifiManager.BUSY); 3808 break; 3809 case WifiManager.RSSI_PKTCNT_FETCH: 3810 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3811 WifiManager.BUSY); 3812 break; 3813 case CMD_GET_SUPPORTED_FEATURES: 3814 int featureSet = mWifiNative.getSupportedFeatureSet(); 3815 replyToMessage(message, message.what, featureSet); 3816 break; 3817 case CMD_FIRMWARE_ALERT: 3818 if (mWifiDiagnostics != null) { 3819 byte[] buffer = (byte[])message.obj; 3820 int alertReason = message.arg1; 3821 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3822 mWifiMetrics.incrementAlertReasonCount(alertReason); 3823 } 3824 break; 3825 case CMD_GET_LINK_LAYER_STATS: 3826 // Not supported hence reply with error message 3827 replyToMessage(message, message.what, null); 3828 break; 3829 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3830 NetworkInfo info = (NetworkInfo) message.obj; 3831 mP2pConnected.set(info.isConnected()); 3832 break; 3833 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3834 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3835 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3836 break; 3837 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3838 case CMD_UPDATE_LINKPROPERTIES: 3839 updateLinkProperties((LinkProperties) message.obj); 3840 break; 3841 case CMD_GET_MATCHING_CONFIG: 3842 replyToMessage(message, message.what); 3843 break; 3844 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3845 case CMD_IP_CONFIGURATION_LOST: 3846 case CMD_IP_REACHABILITY_LOST: 3847 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3848 break; 3849 case CMD_GET_CONNECTION_STATISTICS: 3850 replyToMessage(message, message.what, mWifiConnectionStatistics); 3851 break; 3852 case CMD_REMOVE_APP_CONFIGURATIONS: 3853 deferMessage(message); 3854 break; 3855 case CMD_REMOVE_USER_CONFIGURATIONS: 3856 deferMessage(message); 3857 break; 3858 case CMD_START_IP_PACKET_OFFLOAD: 3859 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3860 message.arg1, 3861 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3862 break; 3863 case CMD_STOP_IP_PACKET_OFFLOAD: 3864 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3865 message.arg1, 3866 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3867 break; 3868 case CMD_START_RSSI_MONITORING_OFFLOAD: 3869 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3870 break; 3871 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3872 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3873 break; 3874 case CMD_USER_SWITCH: 3875 Set<Integer> removedNetworkIds = 3876 mWifiConfigManager.handleUserSwitch(message.arg1); 3877 if (removedNetworkIds.contains(mTargetNetworkId) || 3878 removedNetworkIds.contains(mLastNetworkId)) { 3879 // Disconnect and let autojoin reselect a new network 3880 sendMessage(CMD_DISCONNECT); 3881 } 3882 break; 3883 case CMD_USER_UNLOCK: 3884 mWifiConfigManager.handleUserUnlock(message.arg1); 3885 break; 3886 case CMD_USER_STOP: 3887 mWifiConfigManager.handleUserStop(message.arg1); 3888 break; 3889 case CMD_QUERY_OSU_ICON: 3890 case CMD_MATCH_PROVIDER_NETWORK: 3891 /* reply with arg1 = 0 - it returns API failure to the calling app 3892 * (message.what is not looked at) 3893 */ 3894 replyToMessage(message, message.what); 3895 break; 3896 case CMD_RESET_SIM_NETWORKS: 3897 /* Defer this message until supplicant is started. */ 3898 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3899 deferMessage(message); 3900 break; 3901 case CMD_INSTALL_PACKET_FILTER: 3902 mWifiNative.installPacketFilter((byte[]) message.obj); 3903 break; 3904 case CMD_SET_FALLBACK_PACKET_FILTERING: 3905 if ((boolean) message.obj) { 3906 mWifiNative.startFilteringMulticastV4Packets(); 3907 } else { 3908 mWifiNative.stopFilteringMulticastV4Packets(); 3909 } 3910 break; 3911 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3912 // We have lost contact with a client interface, which means that we cannot 3913 // trust that the driver is up or that the interface is ready. We are fit 3914 // for no WiFi related work. 3915 transitionTo(mInitialState); 3916 break; 3917 case CMD_DIAGS_CONNECT_TIMEOUT: 3918 mWifiDiagnostics.reportConnectionEvent( 3919 (Long) message.obj, BaseWifiDiagnostics.CONNECTION_EVENT_FAILED); 3920 break; 3921 default: 3922 loge("Error! unhandled message" + message); 3923 break; 3924 } 3925 return HANDLED; 3926 } 3927 } 3928 3929 class InitialState extends State { 3930 3931 private void cleanup() { 3932 // Tearing down the client interfaces below is going to stop our supplicant. 3933 mWifiMonitor.stopAllMonitoring(); 3934 3935 mDeathRecipient.unlinkToDeath(); 3936 mWifiNative.tearDownInterfaces(); 3937 3938 mWifiNative.stopHal(); 3939 } 3940 3941 @Override 3942 public void enter() { 3943 cleanup(); 3944 } 3945 3946 @Override 3947 public boolean processMessage(Message message) { 3948 logStateAndMessage(message, this); 3949 switch (message.what) { 3950 case CMD_START_SUPPLICANT: 3951 mClientInterface = mWifiNative.setupDriverForClientMode(); 3952 if (mClientInterface == null 3953 || !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3954 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3955 cleanup(); 3956 break; 3957 } 3958 3959 try { 3960 // A runtime crash or shutting down AP mode can leave 3961 // IP addresses configured, and this affects 3962 // connectivity when supplicant starts up. 3963 // Ensure we have no IP addresses before a supplicant start. 3964 mNwService.clearInterfaceAddresses(mInterfaceName); 3965 3966 // Set privacy extensions 3967 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 3968 3969 // IPv6 is enabled only as long as access point is connected since: 3970 // - IPv6 addresses and routes stick around after disconnection 3971 // - kernel is unaware when connected and fails to start IPv6 negotiation 3972 // - kernel can start autoconfiguration when 802.1x is not complete 3973 mNwService.disableIpv6(mInterfaceName); 3974 } catch (RemoteException re) { 3975 loge("Unable to change interface settings: " + re); 3976 } catch (IllegalStateException ie) { 3977 loge("Unable to change interface settings: " + ie); 3978 } 3979 3980 if (!mWifiNative.enableSupplicant()) { 3981 loge("Failed to start supplicant!"); 3982 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3983 cleanup(); 3984 break; 3985 } 3986 if (!mWifiNative.initializeSupplicantHal()) { 3987 Log.e(TAG, "Failed to start supplicant Hal"); 3988 } 3989 setSupplicantLogLevel(); 3990 setWifiState(WIFI_STATE_ENABLING); 3991 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 3992 mWifiMonitor.startMonitoring(mInterfaceName); 3993 transitionTo(mSupplicantStartingState); 3994 break; 3995 case CMD_START_AP: 3996 transitionTo(mSoftApState); 3997 break; 3998 case CMD_SET_OPERATIONAL_MODE: 3999 mOperationalMode = message.arg1; 4000 if (mOperationalMode != DISABLED_MODE) { 4001 sendMessage(CMD_START_SUPPLICANT); 4002 } 4003 break; 4004 default: 4005 return NOT_HANDLED; 4006 } 4007 return HANDLED; 4008 } 4009 } 4010 4011 class SupplicantStartingState extends State { 4012 private void initializeWpsDetails() { 4013 String detail; 4014 detail = mPropertyService.get("ro.product.name", ""); 4015 if (!mWifiNative.setDeviceName(detail)) { 4016 loge("Failed to set device name " + detail); 4017 } 4018 detail = mPropertyService.get("ro.product.manufacturer", ""); 4019 if (!mWifiNative.setManufacturer(detail)) { 4020 loge("Failed to set manufacturer " + detail); 4021 } 4022 detail = mPropertyService.get("ro.product.model", ""); 4023 if (!mWifiNative.setModelName(detail)) { 4024 loge("Failed to set model name " + detail); 4025 } 4026 detail = mPropertyService.get("ro.product.model", ""); 4027 if (!mWifiNative.setModelNumber(detail)) { 4028 loge("Failed to set model number " + detail); 4029 } 4030 detail = mPropertyService.get("ro.serialno", ""); 4031 if (!mWifiNative.setSerialNumber(detail)) { 4032 loge("Failed to set serial number " + detail); 4033 } 4034 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4035 loge("Failed to set WPS config methods"); 4036 } 4037 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4038 loge("Failed to set primary device type " + mPrimaryDeviceType); 4039 } 4040 } 4041 4042 @Override 4043 public boolean processMessage(Message message) { 4044 logStateAndMessage(message, this); 4045 4046 switch(message.what) { 4047 case WifiMonitor.SUP_CONNECTION_EVENT: 4048 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4049 4050 mSupplicantRestartCount = 0; 4051 /* Reset the supplicant state to indicate the supplicant 4052 * state is not known at this time */ 4053 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4054 /* Initialize data structures */ 4055 mLastBssid = null; 4056 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4057 mLastSignalLevel = -1; 4058 4059 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4060 // Attempt to migrate data out of legacy store. 4061 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4062 Log.e(TAG, "Failed to migrate from legacy config store"); 4063 } 4064 initializeWpsDetails(); 4065 sendSupplicantConnectionChangedBroadcast(true); 4066 transitionTo(mSupplicantStartedState); 4067 break; 4068 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4069 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4070 loge("Failed to setup control channel, restart supplicant"); 4071 mWifiMonitor.stopAllMonitoring(); 4072 mWifiNative.disableSupplicant(); 4073 transitionTo(mInitialState); 4074 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4075 } else { 4076 loge("Failed " + mSupplicantRestartCount + 4077 " times to start supplicant, unload driver"); 4078 mSupplicantRestartCount = 0; 4079 setWifiState(WIFI_STATE_UNKNOWN); 4080 transitionTo(mInitialState); 4081 } 4082 break; 4083 case CMD_START_SUPPLICANT: 4084 case CMD_STOP_SUPPLICANT: 4085 case CMD_START_AP: 4086 case CMD_STOP_AP: 4087 case CMD_SET_OPERATIONAL_MODE: 4088 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4089 deferMessage(message); 4090 break; 4091 default: 4092 return NOT_HANDLED; 4093 } 4094 return HANDLED; 4095 } 4096 } 4097 4098 class SupplicantStartedState extends State { 4099 @Override 4100 public void enter() { 4101 if (mVerboseLoggingEnabled) { 4102 logd("SupplicantStartedState enter"); 4103 } 4104 4105 int defaultInterval = mContext.getResources().getInteger( 4106 R.integer.config_wifi_supplicant_scan_interval); 4107 4108 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 4109 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 4110 defaultInterval); 4111 4112 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 4113 mWifiNative.setExternalSim(true); 4114 4115 /* turn on use of DFS channels */ 4116 mWifiNative.setDfsFlag(true); 4117 4118 setRandomMacOui(); 4119 mWifiNative.enableAutoConnect(false); 4120 mCountryCode.setReadyForChange(true); 4121 4122 // We can't do this in the constructor because WifiStateMachine is created before the 4123 // wifi scanning service is initialized 4124 if (mWifiScanner == null) { 4125 mWifiScanner = mWifiInjector.getWifiScanner(); 4126 4127 synchronized (mWifiReqCountLock) { 4128 mWifiConnectivityManager = 4129 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4130 hasConnectionRequests()); 4131 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4132 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4133 } 4134 } 4135 4136 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4137 mIsRunning = true; 4138 updateBatteryWorkSource(null); 4139 /** 4140 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4141 * When this mode is on, some of the low-level scan parameters used by the 4142 * driver are changed to reduce interference with bluetooth 4143 */ 4144 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4145 // initialize network state 4146 setNetworkDetailedState(DetailedState.DISCONNECTED); 4147 4148 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4149 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4150 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4151 // IpManager.Callback.setFallbackMulticastFilter() 4152 mWifiNative.stopFilteringMulticastV4Packets(); 4153 mWifiNative.stopFilteringMulticastV6Packets(); 4154 4155 if (mOperationalMode == SCAN_ONLY_MODE || 4156 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4157 mWifiNative.disconnect(); 4158 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4159 setWifiState(WIFI_STATE_DISABLED); 4160 } 4161 transitionTo(mScanModeState); 4162 } else if (mOperationalMode == CONNECT_MODE){ 4163 4164 // Status pulls in the current supplicant state and network connection state 4165 // events over the monitor connection. This helps framework sync up with 4166 // current supplicant state 4167 // TODO: actually check the supplicant status string and make sure the supplicant 4168 // is in disconnecte4d state. 4169 mWifiNative.status(); 4170 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4171 transitionTo(mDisconnectedState); 4172 } else if (mOperationalMode == DISABLED_MODE) { 4173 transitionTo(mSupplicantStoppingState); 4174 } 4175 4176 // Set the right suspend mode settings 4177 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4178 && mUserWantsSuspendOpt.get()); 4179 4180 mWifiNative.setPowerSave(true); 4181 4182 if (mP2pSupported) { 4183 if (mOperationalMode == CONNECT_MODE) { 4184 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4185 } else { 4186 // P2P state machine starts in disabled state, and is not enabled until 4187 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4188 // keep it disabled. 4189 } 4190 } 4191 4192 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4193 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4194 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4195 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4196 4197 // Enable link layer stats gathering 4198 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4199 } 4200 4201 @Override 4202 public boolean processMessage(Message message) { 4203 logStateAndMessage(message, this); 4204 4205 switch(message.what) { 4206 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4207 if (mP2pSupported) { 4208 transitionTo(mWaitForP2pDisableState); 4209 } else { 4210 transitionTo(mSupplicantStoppingState); 4211 } 4212 break; 4213 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4214 loge("Connection lost, restart supplicant"); 4215 handleSupplicantConnectionLoss(true); 4216 handleNetworkDisconnect(); 4217 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4218 if (mP2pSupported) { 4219 transitionTo(mWaitForP2pDisableState); 4220 } else { 4221 transitionTo(mInitialState); 4222 } 4223 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4224 break; 4225 case CMD_START_SCAN: 4226 // TODO: remove scan request path (b/31445200) 4227 handleScanRequest(message); 4228 break; 4229 case WifiMonitor.SCAN_RESULTS_EVENT: 4230 case WifiMonitor.SCAN_FAILED_EVENT: 4231 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4232 // results are retrieved from WifiScanner (b/31444878) 4233 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4234 setScanResults(); 4235 mIsScanOngoing = false; 4236 mIsFullScanOngoing = false; 4237 if (mBufferedScanMsg.size() > 0) 4238 sendMessage(mBufferedScanMsg.remove()); 4239 break; 4240 case CMD_PING_SUPPLICANT: 4241 boolean ok = mWifiNative.ping(); 4242 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4243 break; 4244 case CMD_START_AP: 4245 /* Cannot start soft AP while in client mode */ 4246 loge("Failed to start soft AP with a running supplicant"); 4247 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4248 break; 4249 case CMD_SET_OPERATIONAL_MODE: 4250 mOperationalMode = message.arg1; 4251 if (mOperationalMode == DISABLED_MODE) { 4252 transitionTo(mSupplicantStoppingState); 4253 } 4254 break; 4255 case CMD_TARGET_BSSID: 4256 // Trying to associate to this BSSID 4257 if (message.obj != null) { 4258 mTargetRoamBSSID = (String) message.obj; 4259 } 4260 break; 4261 case CMD_GET_LINK_LAYER_STATS: 4262 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4263 replyToMessage(message, message.what, stats); 4264 break; 4265 case CMD_RESET_SIM_NETWORKS: 4266 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4267 mWifiConfigManager.resetSimNetworks(); 4268 break; 4269 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4270 mBluetoothConnectionActive = (message.arg1 != 4271 BluetoothAdapter.STATE_DISCONNECTED); 4272 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4273 break; 4274 case CMD_SET_SUSPEND_OPT_ENABLED: 4275 if (message.arg1 == 1) { 4276 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4277 if (message.arg2 == 1) { 4278 mSuspendWakeLock.release(); 4279 } 4280 } else { 4281 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4282 } 4283 break; 4284 case CMD_SET_HIGH_PERF_MODE: 4285 if (message.arg1 == 1) { 4286 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4287 } else { 4288 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4289 } 4290 break; 4291 case CMD_ENABLE_TDLS: 4292 if (message.obj != null) { 4293 String remoteAddress = (String) message.obj; 4294 boolean enable = (message.arg1 == 1); 4295 mWifiNative.startTdls(remoteAddress, enable); 4296 } 4297 break; 4298 case WifiMonitor.ANQP_DONE_EVENT: 4299 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4300 mPasspointManager.notifyANQPDone((long) message.obj, message.arg1 != 0); 4301 break; 4302 case CMD_STOP_IP_PACKET_OFFLOAD: { 4303 int slot = message.arg1; 4304 int ret = stopWifiIPPacketOffload(slot); 4305 if (mNetworkAgent != null) { 4306 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4307 } 4308 break; 4309 } 4310 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4311 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4312 IconEvent event = (IconEvent) message.obj; 4313 mPasspointManager.notifyIconDone(event.getBSSID(), event); 4314 break; 4315 case WifiMonitor.HS20_REMEDIATION_EVENT: 4316 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4317 // monitoring. 4318 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4319 break; 4320 case CMD_CONFIG_ND_OFFLOAD: 4321 final boolean enabled = (message.arg1 > 0); 4322 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4323 break; 4324 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4325 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4326 break; 4327 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4328 final boolean allowed = (message.arg1 > 0); 4329 boolean old_state = mEnableAutoJoinWhenAssociated; 4330 mEnableAutoJoinWhenAssociated = allowed; 4331 if (!old_state && allowed && mScreenOn 4332 && getCurrentState() == mConnectedState) { 4333 mWifiConnectivityManager.forceConnectivityScan(); 4334 } 4335 break; 4336 default: 4337 return NOT_HANDLED; 4338 } 4339 return HANDLED; 4340 } 4341 4342 @Override 4343 public void exit() { 4344 mWifiDiagnostics.stopLogging(); 4345 4346 mIsRunning = false; 4347 updateBatteryWorkSource(null); 4348 mScanResults = new ArrayList<>(); 4349 4350 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4351 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4352 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4353 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4354 mBufferedScanMsg.clear(); 4355 4356 mNetworkInfo.setIsAvailable(false); 4357 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4358 mCountryCode.setReadyForChange(false); 4359 } 4360 } 4361 4362 class SupplicantStoppingState extends State { 4363 @Override 4364 public void enter() { 4365 /* Send any reset commands to supplicant before shutting it down */ 4366 handleNetworkDisconnect(); 4367 4368 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4369 if (suppState == null) suppState = "unknown"; 4370 4371 logd("SupplicantStoppingState: stopSupplicant " 4372 + " init.svc.wpa_supplicant=" + suppState); 4373 mWifiMonitor.stopSupplicant(); 4374 4375 /* Send ourselves a delayed message to indicate failure after a wait time */ 4376 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4377 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4378 setWifiState(WIFI_STATE_DISABLING); 4379 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4380 } 4381 @Override 4382 public boolean processMessage(Message message) { 4383 logStateAndMessage(message, this); 4384 4385 switch(message.what) { 4386 case WifiMonitor.SUP_CONNECTION_EVENT: 4387 loge("Supplicant connection received while stopping"); 4388 break; 4389 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4390 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4391 handleSupplicantConnectionLoss(false); 4392 transitionTo(mInitialState); 4393 break; 4394 case CMD_STOP_SUPPLICANT_FAILED: 4395 if (message.arg1 == mSupplicantStopFailureToken) { 4396 loge("Timed out on a supplicant stop, kill and proceed"); 4397 handleSupplicantConnectionLoss(true); 4398 transitionTo(mInitialState); 4399 } 4400 break; 4401 case CMD_START_SUPPLICANT: 4402 case CMD_STOP_SUPPLICANT: 4403 case CMD_START_AP: 4404 case CMD_STOP_AP: 4405 case CMD_SET_OPERATIONAL_MODE: 4406 deferMessage(message); 4407 break; 4408 default: 4409 return NOT_HANDLED; 4410 } 4411 return HANDLED; 4412 } 4413 } 4414 4415 class WaitForP2pDisableState extends State { 4416 private State mTransitionToState; 4417 @Override 4418 public void enter() { 4419 switch (getCurrentMessage().what) { 4420 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4421 mTransitionToState = mInitialState; 4422 break; 4423 case CMD_STOP_SUPPLICANT: 4424 default: 4425 mTransitionToState = mSupplicantStoppingState; 4426 break; 4427 } 4428 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4429 } 4430 @Override 4431 public boolean processMessage(Message message) { 4432 logStateAndMessage(message, this); 4433 4434 switch(message.what) { 4435 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4436 transitionTo(mTransitionToState); 4437 break; 4438 /* Defer wifi start/shut and driver commands */ 4439 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4440 case CMD_START_SUPPLICANT: 4441 case CMD_STOP_SUPPLICANT: 4442 case CMD_START_AP: 4443 case CMD_STOP_AP: 4444 case CMD_SET_OPERATIONAL_MODE: 4445 case CMD_START_SCAN: 4446 case CMD_DISCONNECT: 4447 case CMD_REASSOCIATE: 4448 case CMD_RECONNECT: 4449 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4450 deferMessage(message); 4451 break; 4452 default: 4453 return NOT_HANDLED; 4454 } 4455 return HANDLED; 4456 } 4457 } 4458 4459 class ScanModeState extends State { 4460 private int mLastOperationMode; 4461 @Override 4462 public void enter() { 4463 mLastOperationMode = mOperationalMode; 4464 } 4465 @Override 4466 public boolean processMessage(Message message) { 4467 logStateAndMessage(message, this); 4468 4469 switch(message.what) { 4470 case CMD_SET_OPERATIONAL_MODE: 4471 if (message.arg1 == CONNECT_MODE) { 4472 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4473 setWifiState(WIFI_STATE_ENABLED); 4474 // Load and re-enable networks when going back to enabled state 4475 // This is essential for networks to show up after restore 4476 mWifiConfigManager.loadFromStore(); 4477 p2pSendMessage(CMD_ENABLE_P2P); 4478 } 4479 mOperationalMode = CONNECT_MODE; 4480 transitionTo(mDisconnectedState); 4481 } else if (message.arg1 == DISABLED_MODE) { 4482 transitionTo(mSupplicantStoppingState); 4483 } 4484 // Nothing to do 4485 break; 4486 // Handle scan. All the connection related commands are 4487 // handled only in ConnectModeState 4488 case CMD_START_SCAN: 4489 handleScanRequest(message); 4490 break; 4491 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4492 SupplicantState state = handleSupplicantStateChange(message); 4493 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4494 break; 4495 default: 4496 return NOT_HANDLED; 4497 } 4498 return HANDLED; 4499 } 4500 } 4501 4502 4503 String smToString(Message message) { 4504 return smToString(message.what); 4505 } 4506 4507 String smToString(int what) { 4508 String s = sSmToString.get(what); 4509 if (s != null) { 4510 return s; 4511 } 4512 switch (what) { 4513 case WifiMonitor.DRIVER_HUNG_EVENT: 4514 s = "DRIVER_HUNG_EVENT"; 4515 break; 4516 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4517 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4518 break; 4519 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4520 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4521 break; 4522 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4523 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4524 break; 4525 case WifiManager.DISABLE_NETWORK: 4526 s = "WifiManager.DISABLE_NETWORK"; 4527 break; 4528 case WifiManager.CONNECT_NETWORK: 4529 s = "CONNECT_NETWORK"; 4530 break; 4531 case WifiManager.SAVE_NETWORK: 4532 s = "SAVE_NETWORK"; 4533 break; 4534 case WifiManager.FORGET_NETWORK: 4535 s = "FORGET_NETWORK"; 4536 break; 4537 case WifiMonitor.SUP_CONNECTION_EVENT: 4538 s = "SUP_CONNECTION_EVENT"; 4539 break; 4540 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4541 s = "SUP_DISCONNECTION_EVENT"; 4542 break; 4543 case WifiMonitor.SCAN_RESULTS_EVENT: 4544 s = "SCAN_RESULTS_EVENT"; 4545 break; 4546 case WifiMonitor.SCAN_FAILED_EVENT: 4547 s = "SCAN_FAILED_EVENT"; 4548 break; 4549 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4550 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4551 break; 4552 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4553 s = "AUTHENTICATION_FAILURE_EVENT"; 4554 break; 4555 case WifiMonitor.SSID_TEMP_DISABLED: 4556 s = "SSID_TEMP_DISABLED"; 4557 break; 4558 case WifiMonitor.SSID_REENABLED: 4559 s = "SSID_REENABLED"; 4560 break; 4561 case WifiMonitor.WPS_SUCCESS_EVENT: 4562 s = "WPS_SUCCESS_EVENT"; 4563 break; 4564 case WifiMonitor.WPS_FAIL_EVENT: 4565 s = "WPS_FAIL_EVENT"; 4566 break; 4567 case WifiMonitor.SUP_REQUEST_IDENTITY: 4568 s = "SUP_REQUEST_IDENTITY"; 4569 break; 4570 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4571 s = "NETWORK_CONNECTION_EVENT"; 4572 break; 4573 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4574 s = "NETWORK_DISCONNECTION_EVENT"; 4575 break; 4576 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4577 s = "ASSOCIATION_REJECTION_EVENT"; 4578 break; 4579 case WifiMonitor.ANQP_DONE_EVENT: 4580 s = "WifiMonitor.ANQP_DONE_EVENT"; 4581 break; 4582 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4583 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4584 break; 4585 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4586 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4587 break; 4588 case WifiMonitor.HS20_REMEDIATION_EVENT: 4589 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4590 break; 4591 case WifiMonitor.GAS_QUERY_START_EVENT: 4592 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4593 break; 4594 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4595 s = "GROUP_CREATING_TIMED_OUT"; 4596 break; 4597 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4598 s = "P2P_CONNECTION_CHANGED"; 4599 break; 4600 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4601 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4602 break; 4603 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4604 s = "P2P.SET_MIRACAST_MODE"; 4605 break; 4606 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4607 s = "P2P.BLOCK_DISCOVERY"; 4608 break; 4609 case WifiManager.CANCEL_WPS: 4610 s = "CANCEL_WPS"; 4611 break; 4612 case WifiManager.CANCEL_WPS_FAILED: 4613 s = "CANCEL_WPS_FAILED"; 4614 break; 4615 case WifiManager.CANCEL_WPS_SUCCEDED: 4616 s = "CANCEL_WPS_SUCCEDED"; 4617 break; 4618 case WifiManager.START_WPS: 4619 s = "START_WPS"; 4620 break; 4621 case WifiManager.START_WPS_SUCCEEDED: 4622 s = "START_WPS_SUCCEEDED"; 4623 break; 4624 case WifiManager.WPS_FAILED: 4625 s = "WPS_FAILED"; 4626 break; 4627 case WifiManager.WPS_COMPLETED: 4628 s = "WPS_COMPLETED"; 4629 break; 4630 case WifiManager.RSSI_PKTCNT_FETCH: 4631 s = "RSSI_PKTCNT_FETCH"; 4632 break; 4633 default: 4634 s = "what:" + Integer.toString(what); 4635 break; 4636 } 4637 return s; 4638 } 4639 4640 void registerConnected() { 4641 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4642 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4643 // On connect, reset wifiScoreReport 4644 mWifiScoreReport.reset(); 4645 } 4646 } 4647 4648 void registerDisconnected() { 4649 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4650 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4651 // We are switching away from this configuration, 4652 // hence record the time we were connected last 4653 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4654 if (config != null) { 4655 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4656 // temporary networks. 4657 if (config.ephemeral || config.isPasspoint()) { 4658 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4659 } 4660 } 4661 } 4662 } 4663 4664 /** 4665 * Returns Wificonfiguration object correponding to the currently connected network, null if 4666 * not connected. 4667 */ 4668 public WifiConfiguration getCurrentWifiConfiguration() { 4669 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4670 return null; 4671 } 4672 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4673 } 4674 4675 ScanResult getCurrentScanResult() { 4676 WifiConfiguration config = getCurrentWifiConfiguration(); 4677 if (config == null) { 4678 return null; 4679 } 4680 String BSSID = mWifiInfo.getBSSID(); 4681 if (BSSID == null) { 4682 BSSID = mTargetRoamBSSID; 4683 } 4684 ScanDetailCache scanDetailCache = 4685 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4686 4687 if (scanDetailCache == null) { 4688 return null; 4689 } 4690 4691 return scanDetailCache.get(BSSID); 4692 } 4693 4694 String getCurrentBSSID() { 4695 if (isLinkDebouncing()) { 4696 return null; 4697 } 4698 return mLastBssid; 4699 } 4700 4701 class ConnectModeState extends State { 4702 4703 @Override 4704 public void enter() { 4705 // Let the system know that wifi is available in client mode. 4706 setWifiState(WIFI_STATE_ENABLED); 4707 4708 mNetworkInfo.setIsAvailable(true); 4709 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4710 4711 // initialize network state 4712 setNetworkDetailedState(DetailedState.DISCONNECTED); 4713 4714 4715 // Inform WifiConnectivityManager that Wifi is enabled 4716 mWifiConnectivityManager.setWifiEnabled(true); 4717 // Inform metrics that Wifi is Enabled (but not yet connected) 4718 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4719 // Inform p2p service that wifi is up and ready when applicable 4720 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4721 } 4722 4723 @Override 4724 public void exit() { 4725 // Let the system know that wifi is not available since we are exiting client mode. 4726 mNetworkInfo.setIsAvailable(false); 4727 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4728 // Inform WifiConnectivityManager that Wifi is disabled 4729 mWifiConnectivityManager.setWifiEnabled(false); 4730 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4731 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4732 } 4733 4734 @Override 4735 public boolean processMessage(Message message) { 4736 WifiConfiguration config; 4737 int netId; 4738 boolean ok; 4739 boolean didDisconnect; 4740 String bssid; 4741 String ssid; 4742 NetworkUpdateResult result; 4743 Set<Integer> removedNetworkIds; 4744 int reasonCode; 4745 logStateAndMessage(message, this); 4746 4747 switch (message.what) { 4748 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4749 mWifiDiagnostics.captureBugReportData( 4750 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4751 didBlackListBSSID = false; 4752 bssid = (String) message.obj; 4753 reasonCode = message.arg2; 4754 if (bssid == null || TextUtils.isEmpty(bssid)) { 4755 // If BSSID is null, use the target roam BSSID 4756 bssid = mTargetRoamBSSID; 4757 } 4758 if (bssid != null) { 4759 // If we have a BSSID, tell configStore to black list it 4760 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4761 reasonCode); 4762 } 4763 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4764 WifiConfiguration.NetworkSelectionStatus 4765 .DISABLED_ASSOCIATION_REJECTION); 4766 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4767 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4768 reportConnectionAttemptEnd( 4769 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4770 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4771 mWifiInjector.getWifiLastResortWatchdog() 4772 .noteConnectionFailureAndTriggerIfNeeded( 4773 getTargetSsid(), bssid, 4774 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4775 break; 4776 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4777 mWifiDiagnostics.captureBugReportData( 4778 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4779 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4780 // In case of wrong password, rely on SSID_TEMP_DISABLE event to update 4781 // the WifiConfigManager 4782 if ((message.arg2 != WifiMonitor.AUTHENTICATION_FAILURE_REASON_WRONG_PSWD) 4783 && (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID)) { 4784 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4785 WifiConfiguration.NetworkSelectionStatus 4786 .DISABLED_AUTHENTICATION_FAILURE); 4787 } 4788 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4789 reportConnectionAttemptEnd( 4790 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4791 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4792 mWifiInjector.getWifiLastResortWatchdog() 4793 .noteConnectionFailureAndTriggerIfNeeded( 4794 getTargetSsid(), mTargetRoamBSSID, 4795 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4796 break; 4797 case WifiMonitor.SSID_TEMP_DISABLED: 4798 netId = lookupFrameworkNetworkId(message.arg1); 4799 Log.e(TAG, "Supplicant SSID temporary disabled:" 4800 + mWifiConfigManager.getConfiguredNetwork(netId)); 4801 mWifiConfigManager.updateNetworkSelectionStatus( 4802 netId, 4803 WifiConfiguration.NetworkSelectionStatus 4804 .DISABLED_AUTHENTICATION_FAILURE); 4805 reportConnectionAttemptEnd( 4806 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4807 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4808 mWifiInjector.getWifiLastResortWatchdog() 4809 .noteConnectionFailureAndTriggerIfNeeded( 4810 getTargetSsid(), mTargetRoamBSSID, 4811 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4812 break; 4813 case WifiMonitor.SSID_REENABLED: 4814 netId = lookupFrameworkNetworkId(message.arg1); 4815 Log.d(TAG, "Supplicant SSID reenable:" 4816 + mWifiConfigManager.getConfiguredNetwork(netId)); 4817 // Do not re-enable it in Quality Network Selection since framework has its own 4818 // Algorithm of disable/enable 4819 break; 4820 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4821 SupplicantState state = handleSupplicantStateChange(message); 4822 // A driver/firmware hang can now put the interface in a down state. 4823 // We detect the interface going down and recover from it 4824 if (!SupplicantState.isDriverActive(state)) { 4825 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4826 handleNetworkDisconnect(); 4827 } 4828 log("Detected an interface down, restart driver"); 4829 // Rely on the fact that this will force us into killing supplicant and then 4830 // restart supplicant from a clean state. 4831 transitionTo(mSupplicantStoppingState); 4832 sendMessage(CMD_START_SUPPLICANT); 4833 break; 4834 } 4835 4836 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4837 // when authentication times out after a successful connection, 4838 // we can figure this from the supplicant state. If supplicant 4839 // state is DISCONNECTED, but the mNetworkInfo says we are not 4840 // disconnected, we need to handle a disconnection 4841 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4842 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4843 if (mVerboseLoggingEnabled) { 4844 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4845 } 4846 handleNetworkDisconnect(); 4847 transitionTo(mDisconnectedState); 4848 } 4849 4850 // If we have COMPLETED a connection to a BSSID, start doing 4851 // DNAv4/DNAv6 -style probing for on-link neighbors of 4852 // interest (e.g. routers); harmless if none are configured. 4853 if (state == SupplicantState.COMPLETED) { 4854 mIpManager.confirmConfiguration(); 4855 } 4856 break; 4857 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4858 if (message.arg1 == 1) { 4859 mWifiNative.disconnect(); 4860 mTemporarilyDisconnectWifi = true; 4861 } else { 4862 mWifiNative.reconnect(); 4863 mTemporarilyDisconnectWifi = false; 4864 } 4865 break; 4866 case CMD_ADD_OR_UPDATE_NETWORK: 4867 config = (WifiConfiguration) message.obj; 4868 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4869 if (!result.isSuccess()) { 4870 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4871 } 4872 replyToMessage(message, message.what, result.getNetworkId()); 4873 break; 4874 case CMD_REMOVE_NETWORK: 4875 netId = message.arg1; 4876 ok = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 4877 if (!ok) { 4878 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4879 } else if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4880 // Disconnect and let autojoin reselect a new network 4881 sendMessage(CMD_DISCONNECT); 4882 } 4883 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4884 break; 4885 case CMD_ENABLE_NETWORK: 4886 boolean disableOthers = message.arg2 == 1; 4887 netId = message.arg1; 4888 if (disableOthers) { 4889 // If the app has all the necessary permissions, this will trigger a connect 4890 // attempt. 4891 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4892 } else { 4893 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4894 } 4895 if (!ok) { 4896 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4897 } 4898 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4899 break; 4900 case WifiManager.DISABLE_NETWORK: 4901 netId = message.arg1; 4902 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4903 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4904 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4905 // Disconnect and let autojoin reselect a new network 4906 sendMessage(CMD_DISCONNECT); 4907 } 4908 } else { 4909 loge("Failed to remove network"); 4910 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4911 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4912 WifiManager.ERROR); 4913 } 4914 break; 4915 case CMD_DISABLE_EPHEMERAL_NETWORK: 4916 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4917 if (config != null) { 4918 if (config.networkId == mTargetNetworkId 4919 || config.networkId == mLastNetworkId) { 4920 // Disconnect and let autojoin reselect a new network 4921 sendMessage(CMD_DISCONNECT); 4922 } 4923 } 4924 break; 4925 case CMD_SAVE_CONFIG: 4926 ok = mWifiConfigManager.saveToStore(true); 4927 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 4928 // Inform the backup manager about a data change 4929 mBackupManagerProxy.notifyDataChanged(); 4930 break; 4931 case WifiMonitor.SUP_REQUEST_IDENTITY: 4932 int supplicantNetworkId = message.arg2; 4933 netId = lookupFrameworkNetworkId(supplicantNetworkId); 4934 boolean identitySent = false; 4935 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 4936 if (targetWificonfiguration != null 4937 && targetWificonfiguration.enterpriseConfig != null) { 4938 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 4939 } 4940 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 4941 if (targetWificonfiguration != null 4942 && targetWificonfiguration.networkId == netId 4943 && (targetWificonfiguration.allowedKeyManagement 4944 .get(WifiConfiguration.KeyMgmt.WPA_EAP) 4945 || targetWificonfiguration.allowedKeyManagement 4946 .get(WifiConfiguration.KeyMgmt.IEEE8021X)) 4947 && TelephonyUtil.isSimEapMethod(eapMethod)) { 4948 String identity = 4949 TelephonyUtil.getSimIdentity(getTelephonyManager(), eapMethod); 4950 if (identity != null) { 4951 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 4952 identitySent = true; 4953 } 4954 } 4955 if (!identitySent) { 4956 // Supplicant lacks credentials to connect to that network, hence black list 4957 ssid = (String) message.obj; 4958 if (targetWificonfiguration != null && ssid != null 4959 && targetWificonfiguration.SSID != null 4960 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 4961 mWifiConfigManager.updateNetworkSelectionStatus( 4962 targetWificonfiguration.networkId, 4963 WifiConfiguration.NetworkSelectionStatus 4964 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 4965 } 4966 mWifiNative.disconnect(); 4967 } 4968 break; 4969 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 4970 logd("Received SUP_REQUEST_SIM_AUTH"); 4971 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 4972 if (requestData != null) { 4973 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 4974 handleGsmAuthRequest(requestData); 4975 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 4976 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 4977 handle3GAuthRequest(requestData); 4978 } 4979 } else { 4980 loge("Invalid sim auth request"); 4981 } 4982 break; 4983 case CMD_GET_MATCHING_CONFIG: 4984 // TODO(b/31065385) 4985 replyToMessage(message, message.what, null); 4986 break; 4987 case CMD_RECONNECT: 4988 mWifiConnectivityManager.forceConnectivityScan(); 4989 break; 4990 case CMD_REASSOCIATE: 4991 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4992 mWifiNative.reassociate(); 4993 break; 4994 case CMD_RELOAD_TLS_AND_RECONNECT: 4995 if (mWifiConfigManager.needsUnlockedKeyStore()) { 4996 logd("Reconnecting to give a chance to un-connected TLS networks"); 4997 mWifiNative.disconnect(); 4998 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4999 mWifiNative.reconnect(); 5000 } 5001 break; 5002 case CMD_START_ROAM: 5003 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5004 return HANDLED; 5005 case CMD_START_CONNECT: 5006 /* connect command coming from auto-join */ 5007 netId = message.arg1; 5008 bssid = (String) message.obj; 5009 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 5010 logd("CMD_START_CONNECT sup state " 5011 + mSupplicantStateTracker.getSupplicantStateName() 5012 + " my state " + getCurrentState().getName() 5013 + " nid=" + Integer.toString(netId) 5014 + " roam=" + Boolean.toString(mAutoRoaming)); 5015 if (config == null) { 5016 loge("CMD_START_CONNECT and no config, bail out..."); 5017 break; 5018 } 5019 mTargetNetworkId = netId; 5020 setTargetBssid(config, bssid); 5021 5022 reportConnectionAttemptStart(config, mTargetRoamBSSID, 5023 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 5024 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 5025 if (mWifiSupplicantControl.connectToNetwork(config, shouldDisconnect)) { 5026 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5027 targetWificonfiguration = config; 5028 mAutoRoaming = false; 5029 if (isRoaming() || isLinkDebouncing()) { 5030 transitionTo(mRoamingState); 5031 } else if (shouldDisconnect) { 5032 transitionTo(mDisconnectingState); 5033 } else { 5034 transitionTo(mDisconnectedState); 5035 } 5036 } else { 5037 loge("CMD_START_CONNECT Failed to start connection to network " + config); 5038 reportConnectionAttemptEnd( 5039 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 5040 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5041 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5042 WifiManager.ERROR); 5043 break; 5044 } 5045 break; 5046 case CMD_REMOVE_APP_CONFIGURATIONS: 5047 removedNetworkIds = 5048 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 5049 if (removedNetworkIds.contains(mTargetNetworkId) || 5050 removedNetworkIds.contains(mLastNetworkId)) { 5051 // Disconnect and let autojoin reselect a new network. 5052 sendMessage(CMD_DISCONNECT); 5053 } 5054 break; 5055 case CMD_REMOVE_USER_CONFIGURATIONS: 5056 removedNetworkIds = 5057 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5058 if (removedNetworkIds.contains(mTargetNetworkId) || 5059 removedNetworkIds.contains(mLastNetworkId)) { 5060 // Disconnect and let autojoin reselect a new network. 5061 sendMessage(CMD_DISCONNECT); 5062 } 5063 break; 5064 case WifiManager.CONNECT_NETWORK: 5065 /** 5066 * The connect message can contain a network id passed as arg1 on message or 5067 * or a config passed as obj on message. 5068 * For a new network, a config is passed to create and connect. 5069 * For an existing network, a network id is passed 5070 */ 5071 netId = message.arg1; 5072 config = (WifiConfiguration) message.obj; 5073 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5074 // New network addition. 5075 if (config != null) { 5076 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5077 if (!result.isSuccess()) { 5078 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5079 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5080 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5081 WifiManager.ERROR); 5082 break; 5083 } 5084 netId = result.getNetworkId(); 5085 } 5086 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5087 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5088 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5089 WifiManager.NOT_AUTHORIZED); 5090 break; 5091 } 5092 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5093 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5094 break; 5095 case WifiManager.SAVE_NETWORK: 5096 config = (WifiConfiguration) message.obj; 5097 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5098 if (config == null) { 5099 loge("SAVE_NETWORK with null configuration" 5100 + mSupplicantStateTracker.getSupplicantStateName() 5101 + " my state " + getCurrentState().getName()); 5102 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5103 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5104 WifiManager.ERROR); 5105 break; 5106 } 5107 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5108 if (!result.isSuccess()) { 5109 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5110 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5111 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5112 WifiManager.ERROR); 5113 break; 5114 } 5115 netId = result.getNetworkId(); 5116 if (mWifiInfo.getNetworkId() == netId) { 5117 if (result.hasIpChanged()) { 5118 // The currently connection configuration was changed 5119 // We switched from DHCP to static or from static to DHCP, or the 5120 // static IP address has changed. 5121 log("Reconfiguring IP on connection"); 5122 // TODO: clear addresses and disable IPv6 5123 // to simplify obtainingIpState. 5124 transitionTo(mObtainingIpState); 5125 } 5126 if (result.hasProxyChanged()) { 5127 log("Reconfiguring proxy on connection"); 5128 mIpManager.setHttpProxy( 5129 getCurrentWifiConfiguration().getHttpProxy()); 5130 } 5131 } else { 5132 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5133 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5134 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5135 WifiManager.NOT_AUTHORIZED); 5136 break; 5137 } 5138 } 5139 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5140 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5141 break; 5142 case WifiManager.FORGET_NETWORK: 5143 netId = message.arg1; 5144 if (mWifiConfigManager.removeNetwork(netId, message.sendingUid)) { 5145 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 5146 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 5147 (WifiConfiguration) message.obj); 5148 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5149 // Disconnect and let autojoin reselect a new network 5150 sendMessage(CMD_DISCONNECT); 5151 } 5152 } else { 5153 loge("Failed to forget network"); 5154 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 5155 WifiManager.ERROR); 5156 } 5157 break; 5158 case WifiManager.START_WPS: 5159 WpsInfo wpsInfo = (WpsInfo) message.obj; 5160 WpsResult wpsResult; 5161 switch (wpsInfo.setup) { 5162 case WpsInfo.PBC: 5163 wpsResult = mWifiSupplicantControl.startWpsPbc(wpsInfo); 5164 break; 5165 case WpsInfo.KEYPAD: 5166 wpsResult = 5167 mWifiSupplicantControl.startWpsWithPinFromAccessPoint(wpsInfo); 5168 break; 5169 case WpsInfo.DISPLAY: 5170 wpsResult = mWifiSupplicantControl.startWpsWithPinFromDevice(wpsInfo); 5171 break; 5172 default: 5173 wpsResult = new WpsResult(Status.FAILURE); 5174 loge("Invalid setup for WPS"); 5175 break; 5176 } 5177 if (wpsResult.status == Status.SUCCESS) { 5178 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5179 transitionTo(mWpsRunningState); 5180 } else { 5181 loge("Failed to start WPS with config " + wpsInfo.toString()); 5182 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5183 } 5184 break; 5185 case CMD_ASSOCIATED_BSSID: 5186 // This is where we can confirm the connection BSSID. Use it to find the 5187 // right ScanDetail to populate metrics. 5188 String someBssid = (String) message.obj; 5189 if (someBssid != null) { 5190 // Get the ScanDetail associated with this BSSID. 5191 ScanDetailCache scanDetailCache = 5192 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5193 if (scanDetailCache != null) { 5194 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5195 someBssid)); 5196 } 5197 } 5198 return NOT_HANDLED; 5199 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5200 if (mVerboseLoggingEnabled) log("Network connection established"); 5201 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5202 mLastBssid = (String) message.obj; 5203 reasonCode = message.arg2; 5204 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5205 // Currently, the last connected network configuration is left in 5206 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5207 // to it after a config store reload. Hence the old network Id lookups may not 5208 // work, so disconnect the network and let network selector reselect a new 5209 // network. 5210 if (getCurrentWifiConfiguration() != null) { 5211 mWifiInfo.setBSSID(mLastBssid); 5212 mWifiInfo.setNetworkId(mLastNetworkId); 5213 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5214 sendNetworkStateChangeBroadcast(mLastBssid); 5215 transitionTo(mObtainingIpState); 5216 } else { 5217 logw("Connected to unknown networkId " + mLastNetworkId 5218 + ", disconnecting..."); 5219 sendMessage(CMD_DISCONNECT); 5220 } 5221 break; 5222 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5223 // Calling handleNetworkDisconnect here is redundant because we might already 5224 // have called it when leaving L2ConnectedState to go to disconnecting state 5225 // or thru other path 5226 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5227 // if they are valid, and only in this case call handleNEtworkDisconnect, 5228 // TODO: this should be fixed for a L MR release 5229 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5230 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5231 // at the chip etc... 5232 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5233 handleNetworkDisconnect(); 5234 transitionTo(mDisconnectedState); 5235 break; 5236 case CMD_QUERY_OSU_ICON: 5237 mPasspointManager.queryPasspointIcon( 5238 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5239 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5240 break; 5241 case CMD_MATCH_PROVIDER_NETWORK: 5242 // TODO(b/31065385): Passpoint config management. 5243 replyToMessage(message, message.what, 0); 5244 break; 5245 case CMD_ENABLE_P2P: 5246 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 5247 break; 5248 default: 5249 return NOT_HANDLED; 5250 } 5251 return HANDLED; 5252 } 5253 } 5254 5255 private void updateCapabilities(WifiConfiguration config) { 5256 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5257 if (config != null) { 5258 if (config.ephemeral) { 5259 networkCapabilities.removeCapability( 5260 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5261 } else { 5262 networkCapabilities.addCapability( 5263 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5264 } 5265 5266 networkCapabilities.setSignalStrength( 5267 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5268 ? mWifiInfo.getRssi() 5269 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5270 } 5271 5272 if (mWifiInfo.getMeteredHint()) { 5273 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5274 } 5275 5276 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5277 } 5278 5279 private class WifiNetworkAgent extends NetworkAgent { 5280 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5281 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5282 super(l, c, TAG, ni, nc, lp, score, misc); 5283 } 5284 5285 @Override 5286 protected void unwanted() { 5287 // Ignore if we're not the current networkAgent. 5288 if (this != mNetworkAgent) return; 5289 if (mVerboseLoggingEnabled) { 5290 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5291 } 5292 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5293 } 5294 5295 @Override 5296 protected void networkStatus(int status, String redirectUrl) { 5297 if (this != mNetworkAgent) return; 5298 if (status == NetworkAgent.INVALID_NETWORK) { 5299 if (mVerboseLoggingEnabled) { 5300 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5301 + Integer.toString(mWifiInfo.score)); 5302 } 5303 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5304 } else if (status == NetworkAgent.VALID_NETWORK) { 5305 if (mVerboseLoggingEnabled) { 5306 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5307 + Integer.toString(mWifiInfo.score)); 5308 } 5309 doNetworkStatus(status); 5310 } 5311 } 5312 5313 @Override 5314 protected void saveAcceptUnvalidated(boolean accept) { 5315 if (this != mNetworkAgent) return; 5316 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5317 } 5318 5319 @Override 5320 protected void startPacketKeepalive(Message msg) { 5321 WifiStateMachine.this.sendMessage( 5322 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5323 } 5324 5325 @Override 5326 protected void stopPacketKeepalive(Message msg) { 5327 WifiStateMachine.this.sendMessage( 5328 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5329 } 5330 5331 @Override 5332 protected void setSignalStrengthThresholds(int[] thresholds) { 5333 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5334 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5335 // MAX_VALUE at the start/end of the thresholds array if necessary. 5336 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5337 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5338 // re-arm the hardware event. This needs to be done on the state machine thread to 5339 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5340 // sent in the NetworkCapabilities) must be the one received from the hardware event 5341 // received, or we might skip callbacks. 5342 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5343 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5344 if (thresholds.length == 0) { 5345 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5346 mWifiInfo.getRssi()); 5347 return; 5348 } 5349 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5350 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5351 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5352 Arrays.sort(rssiVals); 5353 byte[] rssiRange = new byte[rssiVals.length]; 5354 for (int i = 0; i < rssiVals.length; i++) { 5355 int val = rssiVals[i]; 5356 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5357 rssiRange[i] = (byte) val; 5358 } else { 5359 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5360 + Arrays.toString(rssiVals)); 5361 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5362 mWifiInfo.getRssi()); 5363 return; 5364 } 5365 } 5366 // TODO: Do we quash rssi values in this sorted array which are very close? 5367 mRssiRanges = rssiRange; 5368 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5369 mWifiInfo.getRssi()); 5370 } 5371 5372 @Override 5373 protected void preventAutomaticReconnect() { 5374 if (this != mNetworkAgent) return; 5375 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5376 } 5377 } 5378 5379 void unwantedNetwork(int reason) { 5380 sendMessage(CMD_UNWANTED_NETWORK, reason); 5381 } 5382 5383 void doNetworkStatus(int status) { 5384 sendMessage(CMD_NETWORK_STATUS, status); 5385 } 5386 5387 // rfc4186 & rfc4187: 5388 // create Permanent Identity base on IMSI, 5389 // identity = usernam@realm 5390 // with username = prefix | IMSI 5391 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5392 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5393 String mcc; 5394 String mnc; 5395 String prefix; 5396 5397 if (imsi == null || imsi.isEmpty()) 5398 return ""; 5399 5400 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5401 prefix = "1"; 5402 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5403 prefix = "0"; 5404 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5405 prefix = "6"; 5406 else // not a valide EapMethod 5407 return ""; 5408 5409 /* extract mcc & mnc from mccMnc */ 5410 if (mccMnc != null && !mccMnc.isEmpty()) { 5411 mcc = mccMnc.substring(0, 3); 5412 mnc = mccMnc.substring(3); 5413 if (mnc.length() == 2) 5414 mnc = "0" + mnc; 5415 } else { 5416 // extract mcc & mnc from IMSI, assume mnc size is 3 5417 mcc = imsi.substring(0, 3); 5418 mnc = imsi.substring(3, 6); 5419 } 5420 5421 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5422 } 5423 5424 boolean startScanForConfiguration(WifiConfiguration config) { 5425 if (config == null) 5426 return false; 5427 5428 // We are still seeing a fairly high power consumption triggered by autojoin scans 5429 // Hence do partial scans only for PSK configuration that are roamable since the 5430 // primary purpose of the partial scans is roaming. 5431 // Full badn scans with exponential backoff for the purpose or extended roaming and 5432 // network switching are performed unconditionally. 5433 ScanDetailCache scanDetailCache = 5434 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5435 if (scanDetailCache == null 5436 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5437 || scanDetailCache.size() > 6) { 5438 //return true but to not trigger the scan 5439 return true; 5440 } 5441 Set<Integer> freqs = 5442 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5443 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5444 if (freqs != null && freqs.size() != 0) { 5445 //if (mVerboseLoggingEnabled) { 5446 logd("starting scan for " + config.configKey() + " with " + freqs); 5447 //} 5448 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5449 if (config.hiddenSSID) { 5450 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5451 } 5452 // Call wifi native to start the scan 5453 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5454 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5455 } else { 5456 // used for debug only, mark scan as failed 5457 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5458 } 5459 return true; 5460 } else { 5461 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5462 return false; 5463 } 5464 } 5465 5466 class L2ConnectedState extends State { 5467 @Override 5468 public void enter() { 5469 mRssiPollToken++; 5470 if (mEnableRssiPolling) { 5471 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5472 } 5473 if (mNetworkAgent != null) { 5474 loge("Have NetworkAgent when entering L2Connected"); 5475 setNetworkDetailedState(DetailedState.DISCONNECTED); 5476 } 5477 setNetworkDetailedState(DetailedState.CONNECTING); 5478 5479 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5480 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5481 mLinkProperties, 60, mNetworkMisc); 5482 5483 // We must clear the config BSSID, as the wifi chipset may decide to roam 5484 // from this point on and having the BSSID specified in the network block would 5485 // cause the roam to faile and the device to disconnect 5486 clearTargetBssid("L2ConnectedState"); 5487 mCountryCode.setReadyForChange(false); 5488 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5489 } 5490 5491 @Override 5492 public void exit() { 5493 mIpManager.stop(); 5494 5495 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5496 // Bug: 15347363 5497 // For paranoia's sake, call handleNetworkDisconnect 5498 // only if BSSID is null or last networkId 5499 // is not invalid. 5500 if (mVerboseLoggingEnabled) { 5501 StringBuilder sb = new StringBuilder(); 5502 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5503 if (mLastBssid !=null) { 5504 sb.append(" ").append(mLastBssid); 5505 } 5506 } 5507 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5508 handleNetworkDisconnect(); 5509 } 5510 mCountryCode.setReadyForChange(true); 5511 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5512 } 5513 5514 @Override 5515 public boolean processMessage(Message message) { 5516 logStateAndMessage(message, this); 5517 5518 switch (message.what) { 5519 case DhcpClient.CMD_PRE_DHCP_ACTION: 5520 handlePreDhcpSetup(); 5521 break; 5522 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5523 mIpManager.completedPreDhcpAction(); 5524 break; 5525 case DhcpClient.CMD_POST_DHCP_ACTION: 5526 handlePostDhcpSetup(); 5527 // We advance to mConnectedState because IpManager will also send a 5528 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5529 // which calls updateLinkProperties, which then sends 5530 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5531 // 5532 // In the event of failure, we transition to mDisconnectingState 5533 // similarly--via messages sent back from IpManager. 5534 break; 5535 case CMD_IPV4_PROVISIONING_SUCCESS: { 5536 handleIPv4Success((DhcpResults) message.obj); 5537 sendNetworkStateChangeBroadcast(mLastBssid); 5538 break; 5539 } 5540 case CMD_IPV4_PROVISIONING_FAILURE: { 5541 handleIPv4Failure(); 5542 break; 5543 } 5544 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5545 handleSuccessfulIpConfiguration(); 5546 reportConnectionAttemptEnd( 5547 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5548 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5549 sendConnectedState(); 5550 transitionTo(mConnectedState); 5551 break; 5552 case CMD_IP_CONFIGURATION_LOST: 5553 // Get Link layer stats so that we get fresh tx packet counters. 5554 getWifiLinkLayerStats(); 5555 handleIpConfigurationLost(); 5556 reportConnectionAttemptEnd( 5557 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5558 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5559 transitionTo(mDisconnectingState); 5560 break; 5561 case CMD_IP_REACHABILITY_LOST: 5562 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5563 if (mIpReachabilityDisconnectEnabled) { 5564 handleIpReachabilityLost(); 5565 transitionTo(mDisconnectingState); 5566 } else { 5567 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5568 } 5569 break; 5570 case CMD_DISCONNECT: 5571 mWifiNative.disconnect(); 5572 transitionTo(mDisconnectingState); 5573 break; 5574 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5575 if (message.arg1 == 1) { 5576 mWifiNative.disconnect(); 5577 mTemporarilyDisconnectWifi = true; 5578 transitionTo(mDisconnectingState); 5579 } 5580 break; 5581 case CMD_SET_OPERATIONAL_MODE: 5582 if (message.arg1 != CONNECT_MODE) { 5583 sendMessage(CMD_DISCONNECT); 5584 deferMessage(message); 5585 } 5586 break; 5587 /* Ignore connection to same network */ 5588 case WifiManager.CONNECT_NETWORK: 5589 int netId = message.arg1; 5590 if (mWifiInfo.getNetworkId() == netId) { 5591 break; 5592 } 5593 return NOT_HANDLED; 5594 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5595 mWifiInfo.setBSSID((String) message.obj); 5596 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5597 mWifiInfo.setNetworkId(mLastNetworkId); 5598 if(!mLastBssid.equals(message.obj)) { 5599 mLastBssid = (String) message.obj; 5600 sendNetworkStateChangeBroadcast(mLastBssid); 5601 } 5602 break; 5603 case CMD_RSSI_POLL: 5604 if (message.arg1 == mRssiPollToken) { 5605 if (mEnableChipWakeUpWhenAssociated) { 5606 if (mVerboseLoggingEnabled) { 5607 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5608 } 5609 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5610 if (stats != null) { 5611 // Sanity check the results provided by driver 5612 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5613 && (stats.rssi_mgmt == 0 5614 || stats.beacon_rx == 0)) { 5615 stats = null; 5616 } 5617 } 5618 // Get Info and continue polling 5619 fetchRssiLinkSpeedAndFrequencyNative(); 5620 // Send the update score to network agent. 5621 mWifiScoreReport.calculateAndReportScore( 5622 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5623 mWifiMetrics); 5624 } 5625 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5626 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5627 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5628 } else { 5629 // Polling has completed 5630 } 5631 break; 5632 case CMD_ENABLE_RSSI_POLL: 5633 cleanWifiScore(); 5634 if (mEnableRssiPollWhenAssociated) { 5635 mEnableRssiPolling = (message.arg1 == 1); 5636 } else { 5637 mEnableRssiPolling = false; 5638 } 5639 mRssiPollToken++; 5640 if (mEnableRssiPolling) { 5641 // First poll 5642 fetchRssiLinkSpeedAndFrequencyNative(); 5643 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5644 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5645 } 5646 break; 5647 case WifiManager.RSSI_PKTCNT_FETCH: 5648 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5649 fetchRssiLinkSpeedAndFrequencyNative(); 5650 info.rssi = mWifiInfo.getRssi(); 5651 WifiNative.TxPacketCounters counters = mWifiNative.getTxPacketCounters(); 5652 if (counters != null) { 5653 info.txgood = counters.txSucceeded; 5654 info.txbad = counters.txFailed; 5655 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5656 } else { 5657 replyToMessage(message, 5658 WifiManager.RSSI_PKTCNT_FETCH_FAILED, WifiManager.ERROR); 5659 } 5660 break; 5661 case CMD_DELAYED_NETWORK_DISCONNECT: 5662 if (!isLinkDebouncing()) { 5663 5664 // Ignore if we are not debouncing 5665 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5666 + message.arg1); 5667 return HANDLED; 5668 } else { 5669 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5670 + message.arg1); 5671 5672 mIsLinkDebouncing = false; 5673 // If we are still debouncing while this message comes, 5674 // it means we were not able to reconnect within the alloted time 5675 // = LINK_FLAPPING_DEBOUNCE_MSEC 5676 // and thus, trigger a real disconnect 5677 handleNetworkDisconnect(); 5678 transitionTo(mDisconnectedState); 5679 } 5680 break; 5681 case CMD_ASSOCIATED_BSSID: 5682 if ((String) message.obj == null) { 5683 logw("Associated command w/o BSSID"); 5684 break; 5685 } 5686 mLastBssid = (String) message.obj; 5687 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5688 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5689 mWifiInfo.setBSSID((String) message.obj); 5690 sendNetworkStateChangeBroadcast(mLastBssid); 5691 } 5692 break; 5693 case CMD_START_RSSI_MONITORING_OFFLOAD: 5694 case CMD_RSSI_THRESHOLD_BREACH: 5695 byte currRssi = (byte) message.arg1; 5696 processRssiThreshold(currRssi, message.what); 5697 break; 5698 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5699 stopRssiMonitoringOffload(); 5700 break; 5701 case CMD_RESET_SIM_NETWORKS: 5702 if (message.arg1 == 0 // sim was removed 5703 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5704 WifiConfiguration config = 5705 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5706 if (TelephonyUtil.isSimConfig(config)) { 5707 mWifiNative.disconnect(); 5708 transitionTo(mDisconnectingState); 5709 } 5710 } 5711 /* allow parent state to reset data for other networks */ 5712 return NOT_HANDLED; 5713 default: 5714 return NOT_HANDLED; 5715 } 5716 5717 return HANDLED; 5718 } 5719 } 5720 5721 class ObtainingIpState extends State { 5722 @Override 5723 public void enter() { 5724 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5725 boolean isUsingStaticIp = 5726 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5727 if (mVerboseLoggingEnabled) { 5728 String key = ""; 5729 if (getCurrentWifiConfiguration() != null) { 5730 key = getCurrentWifiConfiguration().configKey(); 5731 } 5732 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5733 + " " + key + " " 5734 + " roam=" + mAutoRoaming 5735 + " static=" + isUsingStaticIp); 5736 } 5737 5738 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5739 // We might still be roaming 5740 mIsLinkDebouncing = false; 5741 5742 // Send event to CM & network change broadcast 5743 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5744 5745 // We must clear the config BSSID, as the wifi chipset may decide to roam 5746 // from this point on and having the BSSID specified in the network block would 5747 // cause the roam to fail and the device to disconnect. 5748 clearTargetBssid("ObtainingIpAddress"); 5749 5750 // Stop IpManager in case we're switching from DHCP to static 5751 // configuration or vice versa. 5752 // 5753 // TODO: Only ever enter this state the first time we connect to a 5754 // network, never on switching between static configuration and 5755 // DHCP. When we transition from static configuration to DHCP in 5756 // particular, we must tell ConnectivityService that we're 5757 // disconnected, because DHCP might take a long time during which 5758 // connectivity APIs such as getActiveNetworkInfo should not return 5759 // CONNECTED. 5760 stopIpManager(); 5761 5762 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5763 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5764 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5765 } 5766 5767 if (!isUsingStaticIp) { 5768 final IpManager.ProvisioningConfiguration prov = 5769 IpManager.buildProvisioningConfiguration() 5770 .withPreDhcpAction() 5771 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5772 .build(); 5773 mIpManager.startProvisioning(prov); 5774 // Get Link layer stats so as we get fresh tx packet counters 5775 getWifiLinkLayerStats(); 5776 } else { 5777 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5778 if (config.ipAddress == null) { 5779 logd("Static IP lacks address"); 5780 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5781 } else { 5782 final IpManager.ProvisioningConfiguration prov = 5783 IpManager.buildProvisioningConfiguration() 5784 .withStaticConfiguration(config) 5785 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5786 .build(); 5787 mIpManager.startProvisioning(prov); 5788 } 5789 } 5790 } 5791 5792 @Override 5793 public boolean processMessage(Message message) { 5794 logStateAndMessage(message, this); 5795 5796 switch(message.what) { 5797 case CMD_START_CONNECT: 5798 case CMD_START_ROAM: 5799 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5800 break; 5801 case WifiManager.SAVE_NETWORK: 5802 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5803 deferMessage(message); 5804 break; 5805 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5806 reportConnectionAttemptEnd( 5807 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5808 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5809 return NOT_HANDLED; 5810 case CMD_SET_HIGH_PERF_MODE: 5811 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5812 deferMessage(message); 5813 break; 5814 /* Defer scan request since we should not switch to other channels at DHCP */ 5815 case CMD_START_SCAN: 5816 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5817 deferMessage(message); 5818 break; 5819 default: 5820 return NOT_HANDLED; 5821 } 5822 return HANDLED; 5823 } 5824 } 5825 5826 private void sendConnectedState() { 5827 // If this network was explicitly selected by the user, evaluate whether to call 5828 // explicitlySelected() so the system can treat it appropriately. 5829 WifiConfiguration config = getCurrentWifiConfiguration(); 5830 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5831 boolean prompt = 5832 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5833 if (mVerboseLoggingEnabled) { 5834 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5835 } 5836 if (prompt) { 5837 // Selected by the user via Settings or QuickSettings. If this network has Internet 5838 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5839 // really want to switch, or has already confirmed and selected "Don't ask again". 5840 if (mVerboseLoggingEnabled) { 5841 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5842 } 5843 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5844 } 5845 } 5846 5847 setNetworkDetailedState(DetailedState.CONNECTED); 5848 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5849 sendNetworkStateChangeBroadcast(mLastBssid); 5850 } 5851 5852 class RoamingState extends State { 5853 boolean mAssociated; 5854 @Override 5855 public void enter() { 5856 if (mVerboseLoggingEnabled) { 5857 log("RoamingState Enter" 5858 + " mScreenOn=" + mScreenOn ); 5859 } 5860 5861 // Make sure we disconnect if roaming fails 5862 roamWatchdogCount++; 5863 logd("Start Roam Watchdog " + roamWatchdogCount); 5864 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5865 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5866 mAssociated = false; 5867 } 5868 @Override 5869 public boolean processMessage(Message message) { 5870 logStateAndMessage(message, this); 5871 WifiConfiguration config; 5872 switch (message.what) { 5873 case CMD_IP_CONFIGURATION_LOST: 5874 config = getCurrentWifiConfiguration(); 5875 if (config != null) { 5876 mWifiDiagnostics.captureBugReportData( 5877 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5878 } 5879 return NOT_HANDLED; 5880 case CMD_UNWANTED_NETWORK: 5881 if (mVerboseLoggingEnabled) { 5882 log("Roaming and CS doesnt want the network -> ignore"); 5883 } 5884 return HANDLED; 5885 case CMD_SET_OPERATIONAL_MODE: 5886 if (message.arg1 != CONNECT_MODE) { 5887 deferMessage(message); 5888 } 5889 break; 5890 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5891 /** 5892 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5893 * before NETWORK_DISCONNECTION_EVENT 5894 * And there is an associated BSSID corresponding to our target BSSID, then 5895 * we have missed the network disconnection, transition to mDisconnectedState 5896 * and handle the rest of the events there. 5897 */ 5898 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5899 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5900 || stateChangeResult.state == SupplicantState.INACTIVE 5901 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5902 if (mVerboseLoggingEnabled) { 5903 log("STATE_CHANGE_EVENT in roaming state " 5904 + stateChangeResult.toString() ); 5905 } 5906 if (stateChangeResult.BSSID != null 5907 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5908 handleNetworkDisconnect(); 5909 transitionTo(mDisconnectedState); 5910 } 5911 } 5912 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5913 // We completed the layer2 roaming part 5914 mAssociated = true; 5915 if (stateChangeResult.BSSID != null) { 5916 mTargetRoamBSSID = stateChangeResult.BSSID; 5917 } 5918 } 5919 break; 5920 case CMD_ROAM_WATCHDOG_TIMER: 5921 if (roamWatchdogCount == message.arg1) { 5922 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 5923 mWifiMetrics.endConnectionEvent( 5924 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 5925 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5926 mRoamFailCount++; 5927 handleNetworkDisconnect(); 5928 mWifiNative.disconnect(); 5929 transitionTo(mDisconnectedState); 5930 } 5931 break; 5932 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5933 if (mAssociated) { 5934 if (mVerboseLoggingEnabled) { 5935 log("roaming and Network connection established"); 5936 } 5937 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5938 mLastBssid = (String) message.obj; 5939 mWifiInfo.setBSSID(mLastBssid); 5940 mWifiInfo.setNetworkId(mLastNetworkId); 5941 int reasonCode = message.arg2; 5942 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5943 sendNetworkStateChangeBroadcast(mLastBssid); 5944 5945 // Successful framework roam! (probably) 5946 reportConnectionAttemptEnd( 5947 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5948 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5949 5950 // We must clear the config BSSID, as the wifi chipset may decide to roam 5951 // from this point on and having the BSSID specified by QNS would cause 5952 // the roam to fail and the device to disconnect. 5953 // When transition from RoamingState to DisconnectingState or 5954 // DisconnectedState, the config BSSID is cleared by 5955 // handleNetworkDisconnect(). 5956 clearTargetBssid("RoamingCompleted"); 5957 5958 // We used to transition to ObtainingIpState in an 5959 // attempt to do DHCPv4 RENEWs on framework roams. 5960 // DHCP can take too long to time out, and we now rely 5961 // upon IpManager's use of IpReachabilityMonitor to 5962 // confirm our current network configuration. 5963 // 5964 // mIpManager.confirmConfiguration() is called within 5965 // the handling of SupplicantState.COMPLETED. 5966 transitionTo(mConnectedState); 5967 } else { 5968 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5969 } 5970 break; 5971 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5972 // Throw away but only if it corresponds to the network we're roaming to 5973 String bssid = (String) message.obj; 5974 if (true) { 5975 String target = ""; 5976 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 5977 log("NETWORK_DISCONNECTION_EVENT in roaming state" 5978 + " BSSID=" + bssid 5979 + " target=" + target); 5980 } 5981 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 5982 handleNetworkDisconnect(); 5983 transitionTo(mDisconnectedState); 5984 } 5985 break; 5986 case WifiMonitor.SSID_TEMP_DISABLED: 5987 // Auth error while roaming 5988 int netId = lookupFrameworkNetworkId(message.arg1); 5989 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 5990 + " id=" + netId 5991 + " isRoaming=" + isRoaming() 5992 + " roam=" + mAutoRoaming); 5993 if (netId == mLastNetworkId) { 5994 config = getCurrentWifiConfiguration(); 5995 if (config != null) { 5996 mWifiDiagnostics.captureBugReportData( 5997 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5998 } 5999 handleNetworkDisconnect(); 6000 transitionTo(mDisconnectingState); 6001 } 6002 return NOT_HANDLED; 6003 case CMD_START_SCAN: 6004 deferMessage(message); 6005 break; 6006 default: 6007 return NOT_HANDLED; 6008 } 6009 return HANDLED; 6010 } 6011 6012 @Override 6013 public void exit() { 6014 logd("WifiStateMachine: Leaving Roaming state"); 6015 } 6016 } 6017 6018 class ConnectedState extends State { 6019 @Override 6020 public void enter() { 6021 updateDefaultRouteMacAddress(1000); 6022 if (mVerboseLoggingEnabled) { 6023 log("Enter ConnectedState " 6024 + " mScreenOn=" + mScreenOn); 6025 } 6026 6027 mWifiConnectivityManager.handleConnectionStateChanged( 6028 WifiConnectivityManager.WIFI_STATE_CONNECTED); 6029 registerConnected(); 6030 lastConnectAttemptTimestamp = 0; 6031 targetWificonfiguration = null; 6032 // Paranoia 6033 mIsLinkDebouncing = false; 6034 6035 // Not roaming anymore 6036 mAutoRoaming = false; 6037 6038 if (testNetworkDisconnect) { 6039 testNetworkDisconnectCounter++; 6040 logd("ConnectedState Enter start disconnect test " + 6041 testNetworkDisconnectCounter); 6042 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 6043 testNetworkDisconnectCounter, 0), 15000); 6044 } 6045 6046 mLastDriverRoamAttempt = 0; 6047 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6048 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6049 } 6050 @Override 6051 public boolean processMessage(Message message) { 6052 WifiConfiguration config = null; 6053 logStateAndMessage(message, this); 6054 6055 switch (message.what) { 6056 case CMD_UNWANTED_NETWORK: 6057 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6058 mWifiNative.disconnect(); 6059 transitionTo(mDisconnectingState); 6060 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6061 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6062 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6063 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6064 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6065 config = getCurrentWifiConfiguration(); 6066 if (config != null) { 6067 // Disable autojoin 6068 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6069 mWifiConfigManager.setNetworkValidatedInternetAccess( 6070 config.networkId, false); 6071 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6072 WifiConfiguration.NetworkSelectionStatus 6073 .DISABLED_NO_INTERNET); 6074 } 6075 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6076 config.networkId); 6077 } 6078 } 6079 return HANDLED; 6080 case CMD_NETWORK_STATUS: 6081 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6082 config = getCurrentWifiConfiguration(); 6083 if (config != null) { 6084 // re-enable autojoin 6085 mWifiConfigManager.setNetworkValidatedInternetAccess( 6086 config.networkId, true); 6087 } 6088 } 6089 return HANDLED; 6090 case CMD_ACCEPT_UNVALIDATED: 6091 boolean accept = (message.arg1 != 0); 6092 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6093 return HANDLED; 6094 case CMD_TEST_NETWORK_DISCONNECT: 6095 // Force a disconnect 6096 if (message.arg1 == testNetworkDisconnectCounter) { 6097 mWifiNative.disconnect(); 6098 } 6099 break; 6100 case CMD_ASSOCIATED_BSSID: 6101 // ASSOCIATING to a new BSSID while already connected, indicates 6102 // that driver is roaming 6103 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6104 return NOT_HANDLED; 6105 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6106 long lastRoam = 0; 6107 reportConnectionAttemptEnd( 6108 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6109 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6110 if (mLastDriverRoamAttempt != 0) { 6111 // Calculate time since last driver roam attempt 6112 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6113 mLastDriverRoamAttempt = 0; 6114 } 6115 if (unexpectedDisconnectedReason(message.arg2)) { 6116 mWifiDiagnostics.captureBugReportData( 6117 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6118 } 6119 config = getCurrentWifiConfiguration(); 6120 if (mEnableLinkDebouncing 6121 && mScreenOn 6122 && !isLinkDebouncing() 6123 && config != null 6124 && config.getNetworkSelectionStatus().isNetworkEnabled() 6125 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6126 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6127 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6128 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6129 && mWifiInfo.getRssi() > 6130 mThresholdQualifiedRssi5) 6131 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6132 && mWifiInfo.getRssi() > 6133 mThresholdQualifiedRssi5))) { 6134 // Start de-bouncing the L2 disconnection: 6135 // this L2 disconnection might be spurious. 6136 // Hence we allow 4 seconds for the state machine to try 6137 // to reconnect, go thru the 6138 // roaming cycle and enter Obtaining IP address 6139 // before signalling the disconnect to ConnectivityService and L3 6140 startScanForConfiguration(getCurrentWifiConfiguration()); 6141 mIsLinkDebouncing = true; 6142 6143 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6144 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6145 if (mVerboseLoggingEnabled) { 6146 log("NETWORK_DISCONNECTION_EVENT in connected state" 6147 + " BSSID=" + mWifiInfo.getBSSID() 6148 + " RSSI=" + mWifiInfo.getRssi() 6149 + " freq=" + mWifiInfo.getFrequency() 6150 + " reason=" + message.arg2 6151 + " -> debounce"); 6152 } 6153 return HANDLED; 6154 } else { 6155 if (mVerboseLoggingEnabled) { 6156 log("NETWORK_DISCONNECTION_EVENT in connected state" 6157 + " BSSID=" + mWifiInfo.getBSSID() 6158 + " RSSI=" + mWifiInfo.getRssi() 6159 + " freq=" + mWifiInfo.getFrequency() 6160 + " was debouncing=" + isLinkDebouncing() 6161 + " reason=" + message.arg2 6162 + " Network Selection Status=" + (config == null ? "Unavailable" 6163 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6164 } 6165 } 6166 break; 6167 case CMD_START_ROAM: 6168 // Clear the driver roam indication since we are attempting a framework roam 6169 mLastDriverRoamAttempt = 0; 6170 6171 /* Connect command coming from auto-join */ 6172 int netId = message.arg1; 6173 ScanResult candidate = (ScanResult)message.obj; 6174 String bssid = SUPPLICANT_BSSID_ANY; 6175 if (candidate != null) { 6176 bssid = candidate.BSSID; 6177 } 6178 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6179 if (config == null) { 6180 loge("CMD_START_ROAM and no config, bail out..."); 6181 break; 6182 } 6183 6184 setTargetBssid(config, bssid); 6185 mTargetNetworkId = netId; 6186 6187 logd("CMD_START_ROAM sup state " 6188 + mSupplicantStateTracker.getSupplicantStateName() 6189 + " my state " + getCurrentState().getName() 6190 + " nid=" + Integer.toString(netId) 6191 + " config " + config.configKey() 6192 + " targetRoamBSSID " + mTargetRoamBSSID); 6193 6194 reportConnectionAttemptStart(config, mTargetRoamBSSID, 6195 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6196 if (mWifiSupplicantControl.roamToNetwork(config)) { 6197 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6198 targetWificonfiguration = config; 6199 mAutoRoaming = true; 6200 transitionTo(mRoamingState); 6201 } else { 6202 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6203 reportConnectionAttemptEnd( 6204 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6205 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6206 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6207 WifiManager.ERROR); 6208 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6209 break; 6210 } 6211 break; 6212 case CMD_START_IP_PACKET_OFFLOAD: { 6213 int slot = message.arg1; 6214 int intervalSeconds = message.arg2; 6215 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6216 byte[] dstMac; 6217 try { 6218 InetAddress gateway = RouteInfo.selectBestRoute( 6219 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6220 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6221 dstMac = macAddressFromString(dstMacStr); 6222 } catch (NullPointerException|IllegalArgumentException e) { 6223 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6224 mNetworkAgent.onPacketKeepaliveEvent(slot, 6225 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6226 break; 6227 } 6228 pkt.dstMac = dstMac; 6229 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6230 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6231 break; 6232 } 6233 default: 6234 return NOT_HANDLED; 6235 } 6236 return HANDLED; 6237 } 6238 6239 @Override 6240 public void exit() { 6241 logd("WifiStateMachine: Leaving Connected state"); 6242 mWifiConnectivityManager.handleConnectionStateChanged( 6243 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6244 6245 mLastDriverRoamAttempt = 0; 6246 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6247 } 6248 } 6249 6250 class DisconnectingState extends State { 6251 6252 @Override 6253 public void enter() { 6254 6255 if (mVerboseLoggingEnabled) { 6256 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6257 } 6258 6259 // Make sure we disconnect: we enter this state prior to connecting to a new 6260 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6261 // event which in this case will be indicating that supplicant started to associate. 6262 // In some cases supplicant doesn't ignore the connect requests (it might not 6263 // find the target SSID in its cache), 6264 // Therefore we end up stuck that state, hence the need for the watchdog. 6265 disconnectingWatchdogCount++; 6266 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6267 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6268 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6269 } 6270 6271 @Override 6272 public boolean processMessage(Message message) { 6273 logStateAndMessage(message, this); 6274 switch (message.what) { 6275 case CMD_SET_OPERATIONAL_MODE: 6276 if (message.arg1 != CONNECT_MODE) { 6277 deferMessage(message); 6278 } 6279 break; 6280 case CMD_START_SCAN: 6281 deferMessage(message); 6282 return HANDLED; 6283 case CMD_DISCONNECT: 6284 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6285 break; 6286 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6287 if (disconnectingWatchdogCount == message.arg1) { 6288 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6289 handleNetworkDisconnect(); 6290 transitionTo(mDisconnectedState); 6291 } 6292 break; 6293 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6294 /** 6295 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6296 * we have missed the network disconnection, transition to mDisconnectedState 6297 * and handle the rest of the events there 6298 */ 6299 deferMessage(message); 6300 handleNetworkDisconnect(); 6301 transitionTo(mDisconnectedState); 6302 break; 6303 default: 6304 return NOT_HANDLED; 6305 } 6306 return HANDLED; 6307 } 6308 } 6309 6310 class DisconnectedState extends State { 6311 @Override 6312 public void enter() { 6313 // We dont scan frequently if this is a temporary disconnect 6314 // due to p2p 6315 if (mTemporarilyDisconnectWifi) { 6316 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6317 return; 6318 } 6319 6320 if (mVerboseLoggingEnabled) { 6321 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6322 } 6323 6324 /** clear the roaming state, if we were roaming, we failed */ 6325 mAutoRoaming = false; 6326 6327 mWifiConnectivityManager.handleConnectionStateChanged( 6328 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6329 6330 /** 6331 * If we have no networks saved, the supplicant stops doing the periodic scan. 6332 * The scans are useful to notify the user of the presence of an open network. 6333 * Note that these are not wake up scans. 6334 */ 6335 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6336 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6337 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6338 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6339 } 6340 6341 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6342 } 6343 @Override 6344 public boolean processMessage(Message message) { 6345 boolean ret = HANDLED; 6346 6347 logStateAndMessage(message, this); 6348 6349 switch (message.what) { 6350 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6351 if (mP2pConnected.get()) break; 6352 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6353 mWifiConfigManager.getSavedNetworks().size() == 0) { 6354 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6355 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6356 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6357 } 6358 break; 6359 case WifiManager.FORGET_NETWORK: 6360 case CMD_REMOVE_NETWORK: 6361 case CMD_REMOVE_APP_CONFIGURATIONS: 6362 case CMD_REMOVE_USER_CONFIGURATIONS: 6363 // Set up a delayed message here. After the forget/remove is handled 6364 // the handled delayed message will determine if there is a need to 6365 // scan and continue 6366 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6367 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6368 ret = NOT_HANDLED; 6369 break; 6370 case CMD_SET_OPERATIONAL_MODE: 6371 if (message.arg1 != CONNECT_MODE) { 6372 mOperationalMode = message.arg1; 6373 if (mOperationalMode == DISABLED_MODE) { 6374 transitionTo(mSupplicantStoppingState); 6375 } else if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6376 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6377 setWifiState(WIFI_STATE_DISABLED); 6378 transitionTo(mScanModeState); 6379 } else if (mOperationalMode == SCAN_ONLY_MODE) { 6380 transitionTo(mScanModeState); 6381 } 6382 } 6383 break; 6384 case CMD_DISCONNECT: 6385 mWifiNative.disconnect(); 6386 break; 6387 /* Ignore network disconnect */ 6388 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6389 // Interpret this as an L2 connection failure 6390 break; 6391 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6392 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6393 if (mVerboseLoggingEnabled) { 6394 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6395 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6396 + " debouncing=" + isLinkDebouncing()); 6397 } 6398 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6399 /* ConnectModeState does the rest of the handling */ 6400 ret = NOT_HANDLED; 6401 break; 6402 case CMD_START_SCAN: 6403 if (!checkOrDeferScanAllowed(message)) { 6404 // The scan request was rescheduled 6405 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6406 return HANDLED; 6407 } 6408 6409 ret = NOT_HANDLED; 6410 break; 6411 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6412 NetworkInfo info = (NetworkInfo) message.obj; 6413 mP2pConnected.set(info.isConnected()); 6414 if (mP2pConnected.get()) { 6415 int defaultInterval = mContext.getResources().getInteger( 6416 R.integer.config_wifi_scan_interval_p2p_connected); 6417 long scanIntervalMs = mFacade.getLongSetting(mContext, 6418 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 6419 defaultInterval); 6420 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 6421 } else if (mWifiConfigManager.getSavedNetworks().size() == 0) { 6422 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6423 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6424 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6425 } 6426 break; 6427 case CMD_RECONNECT: 6428 case CMD_REASSOCIATE: 6429 if (mTemporarilyDisconnectWifi) { 6430 // Drop a third party reconnect/reassociate if STA is 6431 // temporarily disconnected for p2p 6432 break; 6433 } else { 6434 // ConnectModeState handles it 6435 ret = NOT_HANDLED; 6436 } 6437 break; 6438 case CMD_SCREEN_STATE_CHANGED: 6439 handleScreenStateChanged(message.arg1 != 0); 6440 break; 6441 default: 6442 ret = NOT_HANDLED; 6443 } 6444 return ret; 6445 } 6446 6447 @Override 6448 public void exit() { 6449 mWifiConnectivityManager.handleConnectionStateChanged( 6450 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6451 } 6452 } 6453 6454 class WpsRunningState extends State { 6455 // Tracks the source to provide a reply 6456 private Message mSourceMessage; 6457 @Override 6458 public void enter() { 6459 mSourceMessage = Message.obtain(getCurrentMessage()); 6460 } 6461 @Override 6462 public boolean processMessage(Message message) { 6463 logStateAndMessage(message, this); 6464 6465 switch (message.what) { 6466 case WifiMonitor.WPS_SUCCESS_EVENT: 6467 // Ignore intermediate success, wait for full connection 6468 break; 6469 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6470 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6471 mSourceMessage.recycle(); 6472 mSourceMessage = null; 6473 deferMessage(message); 6474 transitionTo(mDisconnectedState); 6475 break; 6476 case WifiMonitor.WPS_OVERLAP_EVENT: 6477 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6478 WifiManager.WPS_OVERLAP_ERROR); 6479 mSourceMessage.recycle(); 6480 mSourceMessage = null; 6481 transitionTo(mDisconnectedState); 6482 break; 6483 case WifiMonitor.WPS_FAIL_EVENT: 6484 // Arg1 has the reason for the failure 6485 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6486 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6487 mSourceMessage.recycle(); 6488 mSourceMessage = null; 6489 transitionTo(mDisconnectedState); 6490 } else { 6491 if (mVerboseLoggingEnabled) { 6492 log("Ignore unspecified fail event during WPS connection"); 6493 } 6494 } 6495 break; 6496 case WifiMonitor.WPS_TIMEOUT_EVENT: 6497 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6498 WifiManager.WPS_TIMED_OUT); 6499 mSourceMessage.recycle(); 6500 mSourceMessage = null; 6501 transitionTo(mDisconnectedState); 6502 break; 6503 case WifiManager.START_WPS: 6504 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6505 break; 6506 case WifiManager.CANCEL_WPS: 6507 if (mWifiNative.cancelWps()) { 6508 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6509 } else { 6510 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6511 } 6512 transitionTo(mDisconnectedState); 6513 break; 6514 /** 6515 * Defer all commands that can cause connections to a different network 6516 * or put the state machine out of connect mode 6517 */ 6518 case CMD_SET_OPERATIONAL_MODE: 6519 case WifiManager.CONNECT_NETWORK: 6520 case CMD_ENABLE_NETWORK: 6521 case CMD_RECONNECT: 6522 case CMD_REASSOCIATE: 6523 deferMessage(message); 6524 break; 6525 case CMD_START_CONNECT: 6526 case CMD_START_ROAM: 6527 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6528 return HANDLED; 6529 case CMD_START_SCAN: 6530 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6531 return HANDLED; 6532 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6533 if (mVerboseLoggingEnabled) log("Network connection lost"); 6534 handleNetworkDisconnect(); 6535 break; 6536 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6537 if (mVerboseLoggingEnabled) { 6538 log("Ignore Assoc reject event during WPS Connection"); 6539 } 6540 break; 6541 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6542 // Disregard auth failure events during WPS connection. The 6543 // EAP sequence is retried several times, and there might be 6544 // failures (especially for wps pin). We will get a WPS_XXX 6545 // event at the end of the sequence anyway. 6546 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6547 break; 6548 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6549 // Throw away supplicant state changes when WPS is running. 6550 // We will start getting supplicant state changes once we get 6551 // a WPS success or failure 6552 break; 6553 default: 6554 return NOT_HANDLED; 6555 } 6556 return HANDLED; 6557 } 6558 6559 @Override 6560 public void exit() { 6561 mWifiConfigManager.loadFromStore(); 6562 } 6563 } 6564 6565 class SoftApState extends State { 6566 private SoftApManager mSoftApManager; 6567 6568 private class SoftApListener implements SoftApManager.Listener { 6569 @Override 6570 public void onStateChanged(int state, int reason) { 6571 if (state == WIFI_AP_STATE_DISABLED) { 6572 sendMessage(CMD_AP_STOPPED); 6573 } else if (state == WIFI_AP_STATE_FAILED) { 6574 sendMessage(CMD_START_AP_FAILURE); 6575 } 6576 6577 setWifiApState(state, reason); 6578 } 6579 } 6580 6581 @Override 6582 public void enter() { 6583 final Message message = getCurrentMessage(); 6584 if (message.what != CMD_START_AP) { 6585 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6586 } 6587 6588 IApInterface apInterface = mWifiNative.setupDriverForSoftApMode(); 6589 if (apInterface == null) { 6590 setWifiApState(WIFI_AP_STATE_FAILED, 6591 WifiManager.SAP_START_FAILURE_GENERAL); 6592 /** 6593 * Transition to InitialState to reset the 6594 * driver/HAL back to the initial state. 6595 */ 6596 transitionTo(mInitialState); 6597 return; 6598 } 6599 6600 WifiConfiguration config = (WifiConfiguration) message.obj; 6601 6602 checkAndSetConnectivityInstance(); 6603 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6604 new SoftApListener(), 6605 apInterface, 6606 config); 6607 mSoftApManager.start(); 6608 } 6609 6610 @Override 6611 public void exit() { 6612 mSoftApManager = null; 6613 } 6614 6615 @Override 6616 public boolean processMessage(Message message) { 6617 logStateAndMessage(message, this); 6618 6619 switch(message.what) { 6620 case CMD_START_AP: 6621 /* Ignore start command when it is starting/started. */ 6622 break; 6623 case CMD_STOP_AP: 6624 mSoftApManager.stop(); 6625 break; 6626 case CMD_START_AP_FAILURE: 6627 transitionTo(mInitialState); 6628 break; 6629 case CMD_AP_STOPPED: 6630 transitionTo(mInitialState); 6631 break; 6632 default: 6633 return NOT_HANDLED; 6634 } 6635 return HANDLED; 6636 } 6637 } 6638 6639 /** 6640 * State machine initiated requests can have replyTo set to null indicating 6641 * there are no recepients, we ignore those reply actions. 6642 */ 6643 private void replyToMessage(Message msg, int what) { 6644 if (msg.replyTo == null) return; 6645 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6646 mReplyChannel.replyToMessage(msg, dstMsg); 6647 } 6648 6649 private void replyToMessage(Message msg, int what, int arg1) { 6650 if (msg.replyTo == null) return; 6651 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6652 dstMsg.arg1 = arg1; 6653 mReplyChannel.replyToMessage(msg, dstMsg); 6654 } 6655 6656 private void replyToMessage(Message msg, int what, Object obj) { 6657 if (msg.replyTo == null) return; 6658 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6659 dstMsg.obj = obj; 6660 mReplyChannel.replyToMessage(msg, dstMsg); 6661 } 6662 6663 /** 6664 * arg2 on the source message has a unique id that needs to be retained in replies 6665 * to match the request 6666 * <p>see WifiManager for details 6667 */ 6668 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6669 Message msg = Message.obtain(); 6670 msg.what = what; 6671 msg.arg2 = srcMsg.arg2; 6672 return msg; 6673 } 6674 6675 /** 6676 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6677 * @param config Must have a WifiConfiguration object to succeed 6678 */ 6679 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6680 WifiConfiguration config) { 6681 if (config != null && config.preSharedKey != null) { 6682 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6683 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6684 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6685 wifiCredentialEventType); 6686 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6687 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6688 } 6689 } 6690 6691 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6692 if (targetWificonfiguration == null 6693 || targetWificonfiguration.networkId 6694 == lookupFrameworkNetworkId(requestData.networkId)) { 6695 logd("id matches targetWifiConfiguration"); 6696 } else { 6697 logd("id does not match targetWifiConfiguration"); 6698 return; 6699 } 6700 6701 String response = 6702 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6703 if (response == null) { 6704 mWifiNative.simAuthFailedResponse(requestData.networkId); 6705 } else { 6706 logv("Supplicant Response -" + response); 6707 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6708 } 6709 } 6710 6711 void handle3GAuthRequest(SimAuthRequestData requestData) { 6712 if (targetWificonfiguration == null 6713 || targetWificonfiguration.networkId 6714 == lookupFrameworkNetworkId(requestData.networkId)) { 6715 logd("id matches targetWifiConfiguration"); 6716 } else { 6717 logd("id does not match targetWifiConfiguration"); 6718 return; 6719 } 6720 6721 SimAuthResponseData response = 6722 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6723 if (response != null) { 6724 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6725 } else { 6726 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6727 } 6728 } 6729 6730 /** 6731 * Automatically connect to the network specified 6732 * 6733 * @param networkId ID of the network to connect to 6734 * @param bssid BSSID of the network 6735 */ 6736 public void startConnectToNetwork(int networkId, String bssid) { 6737 synchronized (mWifiReqCountLock) { 6738 if (hasConnectionRequests()) { 6739 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6740 } 6741 } 6742 } 6743 6744 /** 6745 * Automatically roam to the network specified 6746 * 6747 * @param networkId ID of the network to roam to 6748 * @param scanResult scan result which identifies the network to roam to 6749 */ 6750 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6751 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6752 } 6753 6754 /** 6755 * Dynamically turn on/off WifiConnectivityManager 6756 * 6757 * @param enabled true-enable; false-disable 6758 */ 6759 public void enableWifiConnectivityManager(boolean enabled) { 6760 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6761 } 6762 6763 /** 6764 * @param reason reason code from supplicant on network disconnected event 6765 * @return true if this is a suspicious disconnect 6766 */ 6767 static boolean unexpectedDisconnectedReason(int reason) { 6768 return reason == 2 // PREV_AUTH_NOT_VALID 6769 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6770 || reason == 7 // FRAME_FROM_NONASSOC_STA 6771 || reason == 8 // STA_HAS_LEFT 6772 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6773 || reason == 14 // MICHAEL_MIC_FAILURE 6774 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6775 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6776 || reason == 18 // GROUP_CIPHER_NOT_VALID 6777 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6778 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6779 || reason == 34; // DISASSOC_LOW_ACK 6780 } 6781 6782 /** 6783 * Update WifiMetrics before dumping 6784 */ 6785 void updateWifiMetrics() { 6786 int numSavedNetworks = mWifiConfigManager.getConfiguredNetworks().size(); 6787 int numOpenNetworks = 0; 6788 int numPersonalNetworks = 0; 6789 int numEnterpriseNetworks = 0; 6790 int numNetworksAddedByUser = 0; 6791 int numNetworksAddedByApps = 0; 6792 int numHiddenNetworks = 0; 6793 int numPasspoint = 0; 6794 for (WifiConfiguration config : mWifiConfigManager.getSavedNetworks()) { 6795 if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE)) { 6796 numOpenNetworks++; 6797 } else if (config.isEnterprise()) { 6798 numEnterpriseNetworks++; 6799 } else { 6800 numPersonalNetworks++; 6801 } 6802 if (config.selfAdded) { 6803 numNetworksAddedByUser++; 6804 } else { 6805 numNetworksAddedByApps++; 6806 } 6807 if (config.hiddenSSID) { 6808 numHiddenNetworks++; 6809 } 6810 if (config.isPasspoint()) { 6811 numPasspoint++; 6812 } 6813 } 6814 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 6815 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 6816 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 6817 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 6818 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 6819 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 6820 mWifiMetrics.setNumHiddenNetworks(numHiddenNetworks); 6821 mWifiMetrics.setNumPasspointNetworks(numPasspoint); 6822 } 6823 6824 private static String getLinkPropertiesSummary(LinkProperties lp) { 6825 List<String> attributes = new ArrayList<>(6); 6826 if (lp.hasIPv4Address()) { 6827 attributes.add("v4"); 6828 } 6829 if (lp.hasIPv4DefaultRoute()) { 6830 attributes.add("v4r"); 6831 } 6832 if (lp.hasIPv4DnsServer()) { 6833 attributes.add("v4dns"); 6834 } 6835 if (lp.hasGlobalIPv6Address()) { 6836 attributes.add("v6"); 6837 } 6838 if (lp.hasIPv6DefaultRoute()) { 6839 attributes.add("v6r"); 6840 } 6841 if (lp.hasIPv6DnsServer()) { 6842 attributes.add("v6dns"); 6843 } 6844 6845 return TextUtils.join(" ", attributes); 6846 } 6847 6848 /** 6849 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6850 * This should match the network config framework is attempting to connect to. 6851 */ 6852 private String getTargetSsid() { 6853 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6854 if (currentConfig != null) { 6855 return currentConfig.SSID; 6856 } 6857 return null; 6858 } 6859 6860 private void p2pSendMessage(int what) { 6861 if (mWifiP2pChannel != null) { 6862 mWifiP2pChannel.sendMessage(what); 6863 } 6864 } 6865 6866 private void p2pSendMessage(int what, int arg1) { 6867 if (mWifiP2pChannel != null) { 6868 mWifiP2pChannel.sendMessage(what, arg1); 6869 } 6870 } 6871 6872 /** 6873 * Check if there is any connection request for WiFi network. 6874 * Note, caller of this helper function must acquire mWifiReqCountLock. 6875 */ 6876 private boolean hasConnectionRequests() { 6877 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6878 } 6879 6880 /** 6881 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6882 */ 6883 public boolean getIpReachabilityDisconnectEnabled() { 6884 return mIpReachabilityDisconnectEnabled; 6885 } 6886 6887 /** 6888 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6889 */ 6890 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6891 mIpReachabilityDisconnectEnabled = enabled; 6892 } 6893 6894 /** 6895 * Sends a message to initialize the WifiStateMachine. 6896 * 6897 * @return true if succeeded, false otherwise. 6898 */ 6899 public boolean syncInitialize(AsyncChannel channel) { 6900 Message resultMsg = channel.sendMessageSynchronously(CMD_INITIALIZE); 6901 boolean result = (resultMsg.arg1 != FAILURE); 6902 resultMsg.recycle(); 6903 return result; 6904 } 6905} 6906