WifiStateMachine.java revision 240671db659a4f7ca7e217d41c7aee9d85e22c33
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.IWificond; 63import android.net.wifi.RssiPacketCountInfo; 64import android.net.wifi.ScanResult; 65import android.net.wifi.ScanSettings; 66import android.net.wifi.SupplicantState; 67import android.net.wifi.WifiChannel; 68import android.net.wifi.WifiConfiguration; 69import android.net.wifi.WifiConnectionStatistics; 70import android.net.wifi.WifiEnterpriseConfig; 71import android.net.wifi.WifiInfo; 72import android.net.wifi.WifiLinkLayerStats; 73import android.net.wifi.WifiManager; 74import android.net.wifi.WifiScanner; 75import android.net.wifi.WifiSsid; 76import android.net.wifi.WpsInfo; 77import android.net.wifi.WpsResult; 78import android.net.wifi.WpsResult.Status; 79import android.net.wifi.aware.WifiAwareManager; 80import android.net.wifi.p2p.IWifiP2pManager; 81import android.os.BatteryStats; 82import android.os.Binder; 83import android.os.Bundle; 84import android.os.IBinder; 85import android.os.INetworkManagementService; 86import android.os.Looper; 87import android.os.Message; 88import android.os.Messenger; 89import android.os.PowerManager; 90import android.os.Process; 91import android.os.RemoteException; 92import android.os.UserHandle; 93import android.os.UserManager; 94import android.os.WorkSource; 95import android.provider.Settings; 96import android.telephony.TelephonyManager; 97import android.text.TextUtils; 98import android.util.Log; 99import android.util.SparseArray; 100 101import com.android.internal.R; 102import com.android.internal.annotations.GuardedBy; 103import com.android.internal.annotations.VisibleForTesting; 104import com.android.internal.app.IBatteryStats; 105import com.android.internal.util.AsyncChannel; 106import com.android.internal.util.MessageUtils; 107import com.android.internal.util.Protocol; 108import com.android.internal.util.State; 109import com.android.internal.util.StateMachine; 110import com.android.server.connectivity.KeepalivePacketData; 111import com.android.server.wifi.hotspot2.IconEvent; 112import com.android.server.wifi.hotspot2.PasspointManager; 113import com.android.server.wifi.hotspot2.Utils; 114import com.android.server.wifi.hotspot2.WnmData; 115import com.android.server.wifi.p2p.WifiP2pServiceImpl; 116import com.android.server.wifi.util.TelephonyUtil; 117import com.android.server.wifi.util.TelephonyUtil.SimAuthRequestData; 118import com.android.server.wifi.util.TelephonyUtil.SimAuthResponseData; 119 120import java.io.BufferedReader; 121import java.io.FileDescriptor; 122import java.io.FileNotFoundException; 123import java.io.FileReader; 124import java.io.IOException; 125import java.io.PrintWriter; 126import java.net.Inet4Address; 127import java.net.InetAddress; 128import java.util.ArrayList; 129import java.util.Arrays; 130import java.util.HashSet; 131import java.util.LinkedList; 132import java.util.List; 133import java.util.Queue; 134import java.util.Set; 135import java.util.concurrent.atomic.AtomicBoolean; 136import java.util.concurrent.atomic.AtomicInteger; 137 138/** 139 * TODO: 140 * Deprecate WIFI_STATE_UNKNOWN 141 */ 142 143/** 144 * Track the state of Wifi connectivity. All event handling is done here, 145 * and all changes in connectivity state are initiated here. 146 * 147 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 148 * In the current implementation, we support concurrent wifi p2p and wifi operation. 149 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 150 * handles p2p operation. 151 * 152 * @hide 153 */ 154public class WifiStateMachine extends StateMachine implements WifiNative.WifiRssiEventHandler, 155 WifiMulticastLockManager.FilterController { 156 157 private static final String NETWORKTYPE = "WIFI"; 158 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 159 @VisibleForTesting public static final short NUM_LOG_RECS_NORMAL = 100; 160 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE_LOW_MEMORY = 200; 161 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE = 3000; 162 private static final String TAG = "WifiStateMachine"; 163 164 private static final int ONE_HOUR_MILLI = 1000 * 60 * 60; 165 166 private static final String GOOGLE_OUI = "DA-A1-19"; 167 168 private static final String EXTRA_OSU_ICON_QUERY_BSSID = "BSSID"; 169 private static final String EXTRA_OSU_ICON_QUERY_FILENAME = "FILENAME"; 170 171 private boolean mVerboseLoggingEnabled = false; 172 173 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 174 * the corresponding BSSID. 175 */ 176 private boolean didBlackListBSSID = false; 177 178 /** 179 * Log with error attribute 180 * 181 * @param s is string log 182 */ 183 @Override 184 protected void loge(String s) { 185 Log.e(getName(), s); 186 } 187 @Override 188 protected void logd(String s) { 189 Log.d(getName(), s); 190 } 191 @Override 192 protected void log(String s) { 193 Log.d(getName(), s); 194 } 195 private WifiMetrics mWifiMetrics; 196 private WifiInjector mWifiInjector; 197 private WifiMonitor mWifiMonitor; 198 private WifiNative mWifiNative; 199 private WifiConfigManager mWifiConfigManager; 200 private WifiSupplicantControl mWifiSupplicantControl; 201 private WifiConnectivityManager mWifiConnectivityManager; 202 private WifiNetworkSelector mWifiNetworkSelector; 203 private INetworkManagementService mNwService; 204 private IWificond mWificond; 205 private IClientInterface mClientInterface; 206 private ConnectivityManager mCm; 207 private BaseWifiDiagnostics mWifiDiagnostics; 208 private WifiApConfigStore mWifiApConfigStore; 209 private final boolean mP2pSupported; 210 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 211 private final boolean mAwareSupported; 212 private boolean mTemporarilyDisconnectWifi = false; 213 private final String mPrimaryDeviceType; 214 private final Clock mClock; 215 private final PropertyService mPropertyService; 216 private final BuildProperties mBuildProperties; 217 private final WifiCountryCode mCountryCode; 218 // Object holding most recent wifi score report and bad Linkspeed count 219 private final WifiScoreReport mWifiScoreReport; 220 private final PasspointManager mPasspointManager; 221 222 /* Scan results handling */ 223 private List<ScanDetail> mScanResults = new ArrayList<>(); 224 private final Object mScanResultsLock = new Object(); 225 226 // For debug, number of known scan results that were found as part of last scan result event, 227 // as well the number of scans results returned by the supplicant with that message 228 private int mNumScanResultsKnown; 229 private int mNumScanResultsReturned; 230 231 private boolean mScreenOn = false; 232 233 private final String mInterfaceName; 234 235 private int mLastSignalLevel = -1; 236 private String mLastBssid; 237 private int mLastNetworkId; // The network Id we successfully joined 238 private boolean mIsLinkDebouncing = false; 239 private final StateMachineDeathRecipient mDeathRecipient = 240 new StateMachineDeathRecipient(this, CMD_CLIENT_INTERFACE_BINDER_DEATH); 241 private boolean mIpReachabilityDisconnectEnabled = true; 242 243 @Override 244 public void onRssiThresholdBreached(byte curRssi) { 245 if (mVerboseLoggingEnabled) { 246 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 247 } 248 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 249 } 250 251 public void processRssiThreshold(byte curRssi, int reason) { 252 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 253 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 254 return; 255 } 256 for (int i = 0; i < mRssiRanges.length; i++) { 257 if (curRssi < mRssiRanges[i]) { 258 // Assume sorted values(ascending order) for rssi, 259 // bounded by high(127) and low(-128) at extremeties 260 byte maxRssi = mRssiRanges[i]; 261 byte minRssi = mRssiRanges[i-1]; 262 // This value of hw has to be believed as this value is averaged and has breached 263 // the rssi thresholds and raised event to host. This would be eggregious if this 264 // value is invalid 265 mWifiInfo.setRssi(curRssi); 266 updateCapabilities(getCurrentWifiConfiguration()); 267 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 268 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 269 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 270 break; 271 } 272 } 273 } 274 275 // Testing various network disconnect cases by sending lots of spurious 276 // disconnect to supplicant 277 private boolean testNetworkDisconnect = false; 278 279 private boolean mEnableRssiPolling = false; 280 private int mRssiPollToken = 0; 281 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 282 * In CONNECT_MODE, the STA can scan and connect to an access point 283 * In SCAN_ONLY_MODE, the STA can only scan for access points 284 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 285 */ 286 private int mOperationalMode = CONNECT_MODE; 287 private boolean mIsScanOngoing = false; 288 private boolean mIsFullScanOngoing = false; 289 290 private final Queue<Message> mBufferedScanMsg = new LinkedList<>(); 291 private static final int UNKNOWN_SCAN_SOURCE = -1; 292 private static final int ADD_OR_UPDATE_SOURCE = -3; 293 294 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 295 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 296 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 297 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 298 299 private boolean mBluetoothConnectionActive = false; 300 301 private PowerManager.WakeLock mSuspendWakeLock; 302 303 /** 304 * Interval in milliseconds between polling for RSSI 305 * and linkspeed information 306 */ 307 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 308 309 /** 310 * Interval in milliseconds between receiving a disconnect event 311 * while connected to a good AP, and handling the disconnect proper 312 */ 313 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 4000; 314 315 /** 316 * Delay between supplicant restarts upon failure to establish connection 317 */ 318 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 319 320 /** 321 * Number of times we attempt to restart supplicant 322 */ 323 private static final int SUPPLICANT_RESTART_TRIES = 5; 324 325 /** 326 * Value to set in wpa_supplicant "bssid" field when we don't want to restrict connection to 327 * a specific AP. 328 */ 329 private static final String SUPPLICANT_BSSID_ANY = "any"; 330 331 private int mSupplicantRestartCount = 0; 332 /* Tracks sequence number on stop failure message */ 333 private int mSupplicantStopFailureToken = 0; 334 335 /** 336 * The link properties of the wifi interface. 337 * Do not modify this directly; use updateLinkProperties instead. 338 */ 339 private LinkProperties mLinkProperties; 340 341 /* Tracks sequence number on a periodic scan message */ 342 private int mPeriodicScanToken = 0; 343 344 // Wakelock held during wifi start/stop and driver load/unload 345 private PowerManager.WakeLock mWakeLock; 346 347 private Context mContext; 348 349 private final Object mDhcpResultsLock = new Object(); 350 private DhcpResults mDhcpResults; 351 352 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 353 private final WifiInfo mWifiInfo; 354 private NetworkInfo mNetworkInfo; 355 private final NetworkCapabilities mDfltNetworkCapabilities; 356 private SupplicantStateTracker mSupplicantStateTracker; 357 358 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 359 360 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 361 private boolean mAutoRoaming = false; 362 363 // Roaming failure count 364 private int mRoamFailCount = 0; 365 366 // This is the BSSID we are trying to associate to, it can be set to SUPPLICANT_BSSID_ANY 367 // if we havent selected a BSSID for joining. 368 private String mTargetRoamBSSID = SUPPLICANT_BSSID_ANY; 369 // This one is used to track whta is the current target network ID. This is used for error 370 // handling during connection setup since many error message from supplicant does not report 371 // SSID Once connected, it will be set to invalid 372 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 373 private long mLastDriverRoamAttempt = 0; 374 private WifiConfiguration targetWificonfiguration = null; 375 376 boolean isRoaming() { 377 return mAutoRoaming; 378 } 379 380 /** 381 * Method to clear {@link #mTargetRoamBSSID} and reset the the current connected network's 382 * bssid in wpa_supplicant after a roam/connect attempt. 383 */ 384 public boolean clearTargetBssid(String dbg) { 385 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 386 if (config == null) { 387 return false; 388 } 389 String bssid = SUPPLICANT_BSSID_ANY; 390 if (config.BSSID != null) { 391 bssid = config.BSSID; 392 if (mVerboseLoggingEnabled) { 393 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 394 } 395 } 396 if (mVerboseLoggingEnabled) { 397 logd(dbg + " clearTargetBssid " + bssid + " key=" + config.configKey()); 398 } 399 mTargetRoamBSSID = bssid; 400 return mWifiSupplicantControl.setConfiguredNetworkBSSID(bssid); 401 } 402 403 /** 404 * Set Config's default BSSID (for association purpose) and {@link #mTargetRoamBSSID} 405 * @param config config need set BSSID 406 * @param bssid default BSSID to assocaite with when connect to this network 407 * @return false -- does not change the current default BSSID of the configure 408 * true -- change the current default BSSID of the configur 409 */ 410 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 411 if (config == null || bssid == null) { 412 return false; 413 } 414 if (config.BSSID != null) { 415 bssid = config.BSSID; 416 if (mVerboseLoggingEnabled) { 417 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 418 } 419 } 420 if (mVerboseLoggingEnabled) { 421 Log.d(TAG, "setTargetBssid set to " + bssid + " key=" + config.configKey()); 422 } 423 mTargetRoamBSSID = bssid; 424 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 425 return true; 426 } 427 428 private final IpManager mIpManager; 429 430 // Channel for sending replies. 431 private AsyncChannel mReplyChannel = new AsyncChannel(); 432 433 private WifiAwareManager mWifiAwareManager; 434 435 // Used to initiate a connection with WifiP2pService 436 private AsyncChannel mWifiP2pChannel; 437 438 private WifiScanner mWifiScanner; 439 440 @GuardedBy("mWifiReqCountLock") 441 private int mConnectionReqCount = 0; 442 private WifiNetworkFactory mNetworkFactory; 443 @GuardedBy("mWifiReqCountLock") 444 private int mUntrustedReqCount = 0; 445 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 446 private WifiNetworkAgent mNetworkAgent; 447 private final Object mWifiReqCountLock = new Object(); 448 449 private byte[] mRssiRanges; 450 451 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 452 // We should really persist that into the networkHistory.txt file, and read it back when 453 // WifiStateMachine starts up 454 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 455 456 // Used to filter out requests we couldn't possibly satisfy. 457 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 458 459 // Provide packet filter capabilities to ConnectivityService. 460 private final NetworkMisc mNetworkMisc = new NetworkMisc(); 461 462 /* The base for wifi message types */ 463 static final int BASE = Protocol.BASE_WIFI; 464 /* Start the supplicant */ 465 static final int CMD_START_SUPPLICANT = BASE + 11; 466 /* Stop the supplicant */ 467 static final int CMD_STOP_SUPPLICANT = BASE + 12; 468 /* Indicates Static IP succeeded */ 469 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 470 /* Indicates Static IP failed */ 471 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 472 /* Indicates supplicant stop failed */ 473 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 474 /* A delayed message sent to start driver when it fail to come up */ 475 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 476 477 /* Start the soft access point */ 478 static final int CMD_START_AP = BASE + 21; 479 /* Indicates soft ap start failed */ 480 static final int CMD_START_AP_FAILURE = BASE + 22; 481 /* Stop the soft access point */ 482 static final int CMD_STOP_AP = BASE + 23; 483 /* Soft access point teardown is completed. */ 484 static final int CMD_AP_STOPPED = BASE + 24; 485 486 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 487 488 /* Supplicant commands */ 489 /* Is supplicant alive ? */ 490 static final int CMD_PING_SUPPLICANT = BASE + 51; 491 /* Add/update a network configuration */ 492 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 493 /* Delete a network */ 494 static final int CMD_REMOVE_NETWORK = BASE + 53; 495 /* Enable a network. The device will attempt a connection to the given network. */ 496 static final int CMD_ENABLE_NETWORK = BASE + 54; 497 /* Save configuration */ 498 static final int CMD_SAVE_CONFIG = BASE + 58; 499 /* Get configured networks */ 500 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 501 /* Get adaptors */ 502 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 503 /* Get configured networks with real preSharedKey */ 504 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 505 /* Get Link Layer Stats thru HAL */ 506 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 507 /* Supplicant commands after driver start*/ 508 /* Initiate a scan */ 509 static final int CMD_START_SCAN = BASE + 71; 510 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 511 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 512 /* Disconnect from a network */ 513 static final int CMD_DISCONNECT = BASE + 73; 514 /* Reconnect to a network */ 515 static final int CMD_RECONNECT = BASE + 74; 516 /* Reassociate to a network */ 517 static final int CMD_REASSOCIATE = BASE + 75; 518 /* Get Connection Statistis */ 519 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 520 521 /* Controls suspend mode optimizations 522 * 523 * When high perf mode is enabled, suspend mode optimizations are disabled 524 * 525 * When high perf mode is disabled, suspend mode optimizations are enabled 526 * 527 * Suspend mode optimizations include: 528 * - packet filtering 529 * - turn off roaming 530 * - DTIM wake up settings 531 */ 532 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 533 /* Enables RSSI poll */ 534 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 535 /* RSSI poll */ 536 static final int CMD_RSSI_POLL = BASE + 83; 537 /* Enable suspend mode optimizations in the driver */ 538 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 539 /* Delayed NETWORK_DISCONNECT */ 540 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 541 /* When there are no saved networks, we do a periodic scan to notify user of 542 * an open network */ 543 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 544 /* Test network Disconnection NETWORK_DISCONNECT */ 545 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 546 547 private int testNetworkDisconnectCounter = 0; 548 549 /* Enable TDLS on a specific MAC address */ 550 static final int CMD_ENABLE_TDLS = BASE + 92; 551 552 /** 553 * Watchdog for protecting against b/16823537 554 * Leave time for 4-way handshake to succeed 555 */ 556 static final int ROAM_GUARD_TIMER_MSEC = 15000; 557 558 int roamWatchdogCount = 0; 559 /* Roam state watchdog */ 560 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 561 /* Screen change intent handling */ 562 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 563 564 /* Disconnecting state watchdog */ 565 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 566 567 /* Remove a packages associated configrations */ 568 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 569 570 /* Disable an ephemeral network */ 571 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 572 573 /* Get matching network */ 574 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 575 576 /* alert from firmware */ 577 static final int CMD_FIRMWARE_ALERT = BASE + 100; 578 579 /* SIM is removed; reset any cached data for it */ 580 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 581 582 /* OSU APIs */ 583 static final int CMD_QUERY_OSU_ICON = BASE + 104; 584 585 /* try to match a provider with current network */ 586 static final int CMD_MATCH_PROVIDER_NETWORK = BASE + 105; 587 588 /* Commands from/to the SupplicantStateTracker */ 589 /* Reset the supplicant state tracker */ 590 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 591 592 int disconnectingWatchdogCount = 0; 593 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 594 595 /* P2p commands */ 596 /* We are ok with no response here since we wont do much with it anyway */ 597 public static final int CMD_ENABLE_P2P = BASE + 131; 598 /* In order to shut down supplicant cleanly, we wait till p2p has 599 * been disabled */ 600 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 601 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 602 603 public static final int CMD_BOOT_COMPLETED = BASE + 134; 604 605 /* We now have a valid IP configuration. */ 606 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 607 /* We no longer have a valid IP configuration. */ 608 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 609 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 610 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 611 612 /* Supplicant is trying to associate to a given BSSID */ 613 static final int CMD_TARGET_BSSID = BASE + 141; 614 615 /* Reload all networks and reconnect */ 616 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 617 618 static final int CMD_START_CONNECT = BASE + 143; 619 620 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 621 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 622 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 623 624 static final int CMD_UNWANTED_NETWORK = BASE + 144; 625 626 static final int CMD_START_ROAM = BASE + 145; 627 628 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 629 630 static final int CMD_NETWORK_STATUS = BASE + 148; 631 632 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 633 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 634 635 /* Remove a packages associated configrations */ 636 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 637 638 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 639 640 /* used to offload sending IP packet */ 641 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 642 643 /* used to stop offload sending IP packet */ 644 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 645 646 /* used to start rssi monitoring in hw */ 647 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 648 649 /* used to stop rssi moniroting in hw */ 650 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 651 652 /* used to indicated RSSI threshold breach in hw */ 653 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 654 655 /* Enable/Disable WifiConnectivityManager */ 656 static final int CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER = BASE + 166; 657 658 /* Enable/Disable AutoJoin when associated */ 659 static final int CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED = BASE + 167; 660 661 /** 662 * Used to handle messages bounced between WifiStateMachine and IpManager. 663 */ 664 static final int CMD_IPV4_PROVISIONING_SUCCESS = BASE + 200; 665 static final int CMD_IPV4_PROVISIONING_FAILURE = BASE + 201; 666 667 /* Push a new APF program to the HAL */ 668 static final int CMD_INSTALL_PACKET_FILTER = BASE + 202; 669 670 /* Enable/disable fallback packet filtering */ 671 static final int CMD_SET_FALLBACK_PACKET_FILTERING = BASE + 203; 672 673 /* Enable/disable Neighbor Discovery offload functionality. */ 674 static final int CMD_CONFIG_ND_OFFLOAD = BASE + 204; 675 676 /* used to indicate that the foreground user was switched */ 677 static final int CMD_USER_SWITCH = BASE + 205; 678 679 /* used to indicate that the foreground user was switched */ 680 static final int CMD_USER_UNLOCK = BASE + 206; 681 682 /* used to indicate that the foreground user was switched */ 683 static final int CMD_USER_STOP = BASE + 207; 684 685 /** 686 * Signals that IClientInterface instance underpinning our state is dead. 687 */ 688 private static final int CMD_CLIENT_INTERFACE_BINDER_DEATH = BASE + 250; 689 690 // For message logging. 691 private static final Class[] sMessageClasses = { 692 AsyncChannel.class, WifiStateMachine.class, DhcpClient.class }; 693 private static final SparseArray<String> sSmToString = 694 MessageUtils.findMessageNames(sMessageClasses); 695 696 697 /* Wifi state machine modes of operation */ 698 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 699 public static final int CONNECT_MODE = 1; 700 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 701 public static final int SCAN_ONLY_MODE = 2; 702 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 703 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 704 /* DISABLED_MODE - Don't connect, don't scan, don't be an AP */ 705 public static final int DISABLED_MODE = 4; 706 707 private static final int SUCCESS = 1; 708 private static final int FAILURE = -1; 709 710 /* Tracks if suspend optimizations need to be disabled by DHCP, 711 * screen or due to high perf mode. 712 * When any of them needs to disable it, we keep the suspend optimizations 713 * disabled 714 */ 715 private int mSuspendOptNeedsDisabled = 0; 716 717 private static final int SUSPEND_DUE_TO_DHCP = 1; 718 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 719 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 720 721 /* Tracks if user has enabled suspend optimizations through settings */ 722 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 723 724 /** 725 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 726 */ 727 private final int mNoNetworksPeriodicScan; 728 729 /** 730 * Supplicant scan interval in milliseconds. 731 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 732 * from the default config if the setting is not set 733 */ 734 private long mSupplicantScanIntervalMs; 735 736 private boolean mEnableAutoJoinWhenAssociated; 737 private int mAlwaysEnableScansWhileAssociated; 738 private final int mThresholdQualifiedRssi24; 739 private final int mThresholdQualifiedRssi5; 740 private final int mThresholdSaturatedRssi24; 741 private final int mThresholdSaturatedRssi5; 742 private final int mThresholdMinimumRssi5; 743 private final int mThresholdMinimumRssi24; 744 private final boolean mEnableLinkDebouncing; 745 private final boolean mEnableChipWakeUpWhenAssociated; 746 private final boolean mEnableRssiPollWhenAssociated; 747 748 int mRunningBeaconCount = 0; 749 750 /* Default parent state */ 751 private State mDefaultState = new DefaultState(); 752 /* Temporary initial state */ 753 private State mInitialState = new InitialState(); 754 /* Driver loaded, waiting for supplicant to start */ 755 private State mSupplicantStartingState = new SupplicantStartingState(); 756 /* Driver loaded and supplicant ready */ 757 private State mSupplicantStartedState = new SupplicantStartedState(); 758 /* Waiting for supplicant to stop and monitor to exit */ 759 private State mSupplicantStoppingState = new SupplicantStoppingState(); 760 /* Wait until p2p is disabled 761 * This is a special state which is entered right after we exit out of DriverStartedState 762 * before transitioning to another state. 763 */ 764 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 765 /* Scan for networks, no connection will be established */ 766 private State mScanModeState = new ScanModeState(); 767 /* Connecting to an access point */ 768 private State mConnectModeState = new ConnectModeState(); 769 /* Connected at 802.11 (L2) level */ 770 private State mL2ConnectedState = new L2ConnectedState(); 771 /* fetching IP after connection to access point (assoc+auth complete) */ 772 private State mObtainingIpState = new ObtainingIpState(); 773 /* Connected with IP addr */ 774 private State mConnectedState = new ConnectedState(); 775 /* Roaming */ 776 private State mRoamingState = new RoamingState(); 777 /* disconnect issued, waiting for network disconnect confirmation */ 778 private State mDisconnectingState = new DisconnectingState(); 779 /* Network is not connected, supplicant assoc+auth is not complete */ 780 private State mDisconnectedState = new DisconnectedState(); 781 /* Waiting for WPS to be completed*/ 782 private State mWpsRunningState = new WpsRunningState(); 783 /* Soft ap state */ 784 private State mSoftApState = new SoftApState(); 785 786 /** 787 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 788 * {@link WifiManager#WIFI_STATE_DISABLING}, 789 * {@link WifiManager#WIFI_STATE_ENABLED}, 790 * {@link WifiManager#WIFI_STATE_ENABLING}, 791 * {@link WifiManager#WIFI_STATE_UNKNOWN} 792 */ 793 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 794 795 /** 796 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 797 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 798 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 799 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 800 * {@link WifiManager#WIFI_AP_STATE_FAILED} 801 */ 802 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 803 804 /** 805 * Work source to use to blame usage on the WiFi service 806 */ 807 public static final WorkSource WIFI_WORK_SOURCE = new WorkSource(Process.WIFI_UID); 808 809 /** 810 * Keep track of whether WIFI is running. 811 */ 812 private boolean mIsRunning = false; 813 814 /** 815 * Keep track of whether we last told the battery stats we had started. 816 */ 817 private boolean mReportedRunning = false; 818 819 /** 820 * Most recently set source of starting WIFI. 821 */ 822 private final WorkSource mRunningWifiUids = new WorkSource(); 823 824 /** 825 * The last reported UIDs that were responsible for starting WIFI. 826 */ 827 private final WorkSource mLastRunningWifiUids = new WorkSource(); 828 829 private TelephonyManager mTelephonyManager; 830 private TelephonyManager getTelephonyManager() { 831 if (mTelephonyManager == null) { 832 mTelephonyManager = mWifiInjector.makeTelephonyManager(); 833 } 834 return mTelephonyManager; 835 } 836 837 private final IBatteryStats mBatteryStats; 838 839 private final String mTcpBufferSizes; 840 841 // Used for debug and stats gathering 842 private static int sScanAlarmIntentCount = 0; 843 844 private FrameworkFacade mFacade; 845 846 private final BackupManagerProxy mBackupManagerProxy; 847 848 public WifiStateMachine(Context context, FrameworkFacade facade, Looper looper, 849 UserManager userManager, WifiInjector wifiInjector, 850 BackupManagerProxy backupManagerProxy, WifiCountryCode countryCode, 851 WifiNative wifiNative) { 852 super("WifiStateMachine", looper); 853 mWifiInjector = wifiInjector; 854 mWifiMetrics = mWifiInjector.getWifiMetrics(); 855 mClock = wifiInjector.getClock(); 856 mPropertyService = wifiInjector.getPropertyService(); 857 mBuildProperties = wifiInjector.getBuildProperties(); 858 mContext = context; 859 mFacade = facade; 860 mWifiNative = wifiNative; 861 mBackupManagerProxy = backupManagerProxy; 862 863 // TODO refactor WifiNative use of context out into it's own class 864 mWifiNative.initContext(mContext); 865 mInterfaceName = mWifiNative.getInterfaceName(); 866 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 867 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 868 BatteryStats.SERVICE_NAME)); 869 870 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 871 mNwService = INetworkManagementService.Stub.asInterface(b); 872 873 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 874 PackageManager.FEATURE_WIFI_DIRECT); 875 mAwareSupported = mContext.getPackageManager() 876 .hasSystemFeature(PackageManager.FEATURE_WIFI_AWARE); 877 878 mWifiConfigManager = mWifiInjector.getWifiConfigManager(); 879 mWifiApConfigStore = mWifiInjector.getWifiApConfigStore(); 880 mWifiSupplicantControl = mWifiInjector.getWifiSupplicantControl(); 881 mWifiSupplicantControl.setSystemSupportsFastBssTransition( 882 mContext.getResources().getBoolean(R.bool.config_wifi_fast_bss_transition_enabled)); 883 884 mPasspointManager = mWifiInjector.getPasspointManager(); 885 886 mWifiMonitor = WifiMonitor.getInstance(); 887 mWifiDiagnostics = mWifiInjector.makeWifiDiagnostics(mWifiNative); 888 889 mWifiInfo = new WifiInfo(); 890 mWifiNetworkSelector = mWifiInjector.getWifiNetworkSelector(); 891 mSupplicantStateTracker = 892 mFacade.makeSupplicantStateTracker(context, mWifiConfigManager, getHandler()); 893 894 mLinkProperties = new LinkProperties(); 895 896 mNetworkInfo.setIsAvailable(false); 897 mLastBssid = null; 898 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 899 mLastSignalLevel = -1; 900 901 mIpManager = mFacade.makeIpManager(mContext, mInterfaceName, new IpManagerCallback()); 902 mIpManager.setMulticastFilter(true); 903 904 mNoNetworksPeriodicScan = mContext.getResources().getInteger( 905 R.integer.config_wifi_no_network_periodic_scan_interval); 906 907 // TODO: remove these settings from the config file since we no longer obey them 908 // mContext.getResources().getInteger(R.integer.config_wifi_framework_scan_interval); 909 // mContext.getResources().getBoolean(R.bool.config_wifi_background_scan_support); 910 911 mPrimaryDeviceType = mContext.getResources().getString( 912 R.string.config_wifi_p2p_device_type); 913 914 mCountryCode = countryCode; 915 916 mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager); 917 918 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 919 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 920 921 mNetworkCapabilitiesFilter.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 922 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 923 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 924 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 925 mNetworkCapabilitiesFilter.setLinkUpstreamBandwidthKbps(1024 * 1024); 926 mNetworkCapabilitiesFilter.setLinkDownstreamBandwidthKbps(1024 * 1024); 927 // TODO - needs to be a bit more dynamic 928 mDfltNetworkCapabilities = new NetworkCapabilities(mNetworkCapabilitiesFilter); 929 930 IntentFilter filter = new IntentFilter(); 931 filter.addAction(Intent.ACTION_SCREEN_ON); 932 filter.addAction(Intent.ACTION_SCREEN_OFF); 933 mContext.registerReceiver( 934 new BroadcastReceiver() { 935 @Override 936 public void onReceive(Context context, Intent intent) { 937 String action = intent.getAction(); 938 939 if (action.equals(Intent.ACTION_SCREEN_ON)) { 940 sendMessage(CMD_SCREEN_STATE_CHANGED, 1); 941 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 942 sendMessage(CMD_SCREEN_STATE_CHANGED, 0); 943 } 944 } 945 }, filter); 946 947 mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor( 948 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, 949 new ContentObserver(getHandler()) { 950 @Override 951 public void onChange(boolean selfChange) { 952 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 953 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 954 } 955 }); 956 957 mContext.registerReceiver( 958 new BroadcastReceiver() { 959 @Override 960 public void onReceive(Context context, Intent intent) { 961 sendMessage(CMD_BOOT_COMPLETED); 962 } 963 }, 964 new IntentFilter(Intent.ACTION_LOCKED_BOOT_COMPLETED)); 965 966 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 967 mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getName()); 968 969 mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); 970 mSuspendWakeLock.setReferenceCounted(false); 971 972 mTcpBufferSizes = mContext.getResources().getString( 973 com.android.internal.R.string.config_wifi_tcp_buffers); 974 975 // Load Device configs 976 mEnableAutoJoinWhenAssociated = context.getResources().getBoolean( 977 R.bool.config_wifi_framework_enable_associated_network_selection); 978 mThresholdQualifiedRssi24 = context.getResources().getInteger( 979 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz); 980 mThresholdQualifiedRssi5 = context.getResources().getInteger( 981 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz); 982 mThresholdSaturatedRssi24 = context.getResources().getInteger( 983 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz); 984 mThresholdSaturatedRssi5 = context.getResources().getInteger( 985 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz); 986 mThresholdMinimumRssi5 = context.getResources().getInteger( 987 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz); 988 mThresholdMinimumRssi24 = context.getResources().getInteger( 989 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz); 990 mEnableLinkDebouncing = mContext.getResources().getBoolean( 991 R.bool.config_wifi_enable_disconnection_debounce); 992 mEnableChipWakeUpWhenAssociated = true; 993 mEnableRssiPollWhenAssociated = true; 994 995 // CHECKSTYLE:OFF IndentationCheck 996 addState(mDefaultState); 997 addState(mInitialState, mDefaultState); 998 addState(mSupplicantStartingState, mDefaultState); 999 addState(mSupplicantStartedState, mDefaultState); 1000 addState(mScanModeState, mSupplicantStartedState); 1001 addState(mConnectModeState, mSupplicantStartedState); 1002 addState(mL2ConnectedState, mConnectModeState); 1003 addState(mObtainingIpState, mL2ConnectedState); 1004 addState(mConnectedState, mL2ConnectedState); 1005 addState(mRoamingState, mL2ConnectedState); 1006 addState(mDisconnectingState, mConnectModeState); 1007 addState(mDisconnectedState, mConnectModeState); 1008 addState(mWpsRunningState, mConnectModeState); 1009 addState(mWaitForP2pDisableState, mSupplicantStartedState); 1010 addState(mSupplicantStoppingState, mDefaultState); 1011 addState(mSoftApState, mDefaultState); 1012 // CHECKSTYLE:ON IndentationCheck 1013 1014 setInitialState(mInitialState); 1015 1016 setLogRecSize(NUM_LOG_RECS_NORMAL); 1017 setLogOnlyTransitions(false); 1018 1019 // Clean up existing interfaces in wificond. 1020 // This ensures that wificond continue to work if java framework restarts. 1021 try { 1022 mWificond = mWifiInjector.makeWificond(); 1023 if (mWificond != null) { 1024 mWificond.tearDownInterfaces(); 1025 } 1026 } catch (RemoteException e) { 1027 // There is very little we can do here 1028 Log.e(TAG, "Failed to tear down interfaces via wificond"); 1029 } 1030 1031 //start the state machine 1032 start(); 1033 1034 // Learn the initial state of whether the screen is on. 1035 // We update this field when we receive broadcasts from the system. 1036 handleScreenStateChanged(powerManager.isInteractive()); 1037 1038 mWifiMonitor.registerHandler(mInterfaceName, CMD_TARGET_BSSID, getHandler()); 1039 mWifiMonitor.registerHandler(mInterfaceName, CMD_ASSOCIATED_BSSID, getHandler()); 1040 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ANQP_DONE_EVENT, getHandler()); 1041 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ASSOCIATION_REJECTION_EVENT, 1042 getHandler()); 1043 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.AUTHENTICATION_FAILURE_EVENT, 1044 getHandler()); 1045 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.DRIVER_HUNG_EVENT, getHandler()); 1046 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_DONE_EVENT, getHandler()); 1047 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_START_EVENT, 1048 getHandler()); 1049 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_REMEDIATION_EVENT, 1050 getHandler()); 1051 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT, 1052 getHandler()); 1053 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT, 1054 getHandler()); 1055 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT, 1056 getHandler()); 1057 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_FAILED_EVENT, getHandler()); 1058 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_RESULTS_EVENT, getHandler()); 1059 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_REENABLED, getHandler()); 1060 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_TEMP_DISABLED, getHandler()); 1061 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_CONNECTION_EVENT, getHandler()); 1062 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_DISCONNECTION_EVENT, 1063 getHandler()); 1064 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 1065 getHandler()); 1066 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_IDENTITY, getHandler()); 1067 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_SIM_AUTH, getHandler()); 1068 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_FAIL_EVENT, getHandler()); 1069 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_OVERLAP_EVENT, getHandler()); 1070 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_SUCCESS_EVENT, getHandler()); 1071 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_TIMEOUT_EVENT, getHandler()); 1072 1073 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 1074 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1075 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 1076 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1077 } 1078 1079 class IpManagerCallback extends IpManager.Callback { 1080 @Override 1081 public void onPreDhcpAction() { 1082 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION); 1083 } 1084 1085 @Override 1086 public void onPostDhcpAction() { 1087 sendMessage(DhcpClient.CMD_POST_DHCP_ACTION); 1088 } 1089 1090 @Override 1091 public void onNewDhcpResults(DhcpResults dhcpResults) { 1092 if (dhcpResults != null) { 1093 sendMessage(CMD_IPV4_PROVISIONING_SUCCESS, dhcpResults); 1094 } else { 1095 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 1096 mWifiInjector.getWifiLastResortWatchdog().noteConnectionFailureAndTriggerIfNeeded( 1097 getTargetSsid(), mTargetRoamBSSID, 1098 WifiLastResortWatchdog.FAILURE_CODE_DHCP); 1099 } 1100 } 1101 1102 @Override 1103 public void onProvisioningSuccess(LinkProperties newLp) { 1104 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1105 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 1106 } 1107 1108 @Override 1109 public void onProvisioningFailure(LinkProperties newLp) { 1110 sendMessage(CMD_IP_CONFIGURATION_LOST); 1111 } 1112 1113 @Override 1114 public void onLinkPropertiesChange(LinkProperties newLp) { 1115 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1116 } 1117 1118 @Override 1119 public void onReachabilityLost(String logMsg) { 1120 sendMessage(CMD_IP_REACHABILITY_LOST, logMsg); 1121 } 1122 1123 @Override 1124 public void installPacketFilter(byte[] filter) { 1125 sendMessage(CMD_INSTALL_PACKET_FILTER, filter); 1126 } 1127 1128 @Override 1129 public void setFallbackMulticastFilter(boolean enabled) { 1130 sendMessage(CMD_SET_FALLBACK_PACKET_FILTERING, enabled); 1131 } 1132 1133 @Override 1134 public void setNeighborDiscoveryOffload(boolean enabled) { 1135 sendMessage(CMD_CONFIG_ND_OFFLOAD, (enabled ? 1 : 0)); 1136 } 1137 } 1138 1139 private void stopIpManager() { 1140 /* Restore power save and suspend optimizations */ 1141 handlePostDhcpSetup(); 1142 mIpManager.stop(); 1143 } 1144 1145 PendingIntent getPrivateBroadcast(String action, int requestCode) { 1146 Intent intent = new Intent(action, null); 1147 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1148 intent.setPackage("android"); 1149 return mFacade.getBroadcast(mContext, requestCode, intent, 0); 1150 } 1151 1152 /** 1153 * Set wpa_supplicant log level using |mVerboseLoggingLevel| flag. 1154 */ 1155 void setSupplicantLogLevel() { 1156 if (mVerboseLoggingEnabled) { 1157 mWifiNative.setSupplicantLogLevel("DEBUG"); 1158 } else { 1159 mWifiNative.setSupplicantLogLevel("INFO"); 1160 } 1161 } 1162 1163 /** 1164 * Method to update logging level in wifi service related classes. 1165 * 1166 * @param verbose int logging level to use 1167 */ 1168 public void enableVerboseLogging(int verbose) { 1169 if (verbose > 0) { 1170 mVerboseLoggingEnabled = true; 1171 setLogRecSize(ActivityManager.isLowRamDeviceStatic() 1172 ? NUM_LOG_RECS_VERBOSE_LOW_MEMORY : NUM_LOG_RECS_VERBOSE); 1173 } else { 1174 mVerboseLoggingEnabled = false; 1175 setLogRecSize(NUM_LOG_RECS_NORMAL); 1176 } 1177 configureVerboseHalLogging(mVerboseLoggingEnabled); 1178 setSupplicantLogLevel(); 1179 mCountryCode.enableVerboseLogging(verbose); 1180 mWifiScoreReport.enableVerboseLogging(mVerboseLoggingEnabled); 1181 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 1182 mWifiMonitor.enableVerboseLogging(verbose); 1183 mWifiNative.enableVerboseLogging(verbose); 1184 mWifiConfigManager.enableVerboseLogging(verbose); 1185 mSupplicantStateTracker.enableVerboseLogging(verbose); 1186 } 1187 1188 private static final String SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL = "log.tag.WifiHAL"; 1189 private static final String LOGD_LEVEL_DEBUG = "D"; 1190 private static final String LOGD_LEVEL_VERBOSE = "V"; 1191 private void configureVerboseHalLogging(boolean enableVerbose) { 1192 if (mBuildProperties.isUserBuild()) { // Verbose HAL logging not supported on user builds. 1193 return; 1194 } 1195 mPropertyService.set(SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL, 1196 enableVerbose ? LOGD_LEVEL_VERBOSE : LOGD_LEVEL_DEBUG); 1197 } 1198 1199 private int mAggressiveHandover = 0; 1200 1201 int getAggressiveHandover() { 1202 return mAggressiveHandover; 1203 } 1204 1205 void enableAggressiveHandover(int enabled) { 1206 mAggressiveHandover = enabled; 1207 } 1208 1209 public void clearANQPCache() { 1210 // TODO(b/31065385) 1211 // mWifiConfigManager.trimANQPCache(true); 1212 } 1213 1214 public void setAllowScansWithTraffic(int enabled) { 1215 mAlwaysEnableScansWhileAssociated = enabled; 1216 } 1217 1218 public int getAllowScansWithTraffic() { 1219 return mAlwaysEnableScansWhileAssociated; 1220 } 1221 1222 /* 1223 * Dynamically turn on/off if switching networks while connected is allowd. 1224 */ 1225 public boolean setEnableAutoJoinWhenAssociated(boolean enabled) { 1226 sendMessage(CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED, enabled ? 1 : 0); 1227 return true; 1228 } 1229 1230 public boolean getEnableAutoJoinWhenAssociated() { 1231 return mEnableAutoJoinWhenAssociated; 1232 } 1233 1234 private boolean setRandomMacOui() { 1235 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1236 if (TextUtils.isEmpty(oui)) { 1237 oui = GOOGLE_OUI; 1238 } 1239 String[] ouiParts = oui.split("-"); 1240 byte[] ouiBytes = new byte[3]; 1241 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1242 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1243 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1244 1245 logd("Setting OUI to " + oui); 1246 return mWifiNative.setScanningMacOui(ouiBytes); 1247 } 1248 1249 /** 1250 * Helper method to lookup the framework network ID of the network currently configured in 1251 * wpa_supplicant using the provided supplicant network ID. This is needed for translating the 1252 * networkID received from all {@link WifiMonitor} events. 1253 * 1254 * @param supplicantNetworkId Network ID of network in wpa_supplicant. 1255 * @return Corresponding Internal configured network ID 1256 * TODO(b/31080843): This is ugly! We need to hide this translation of networkId's. This will 1257 * be handled once we move all of this connection logic to wificond. 1258 */ 1259 private int lookupFrameworkNetworkId(int supplicantNetworkId) { 1260 return mWifiSupplicantControl.getFrameworkNetworkId(supplicantNetworkId); 1261 } 1262 1263 /** 1264 * Initiates connection to a network specified by the user/app. This method checks if the 1265 * requesting app holds the WIFI_CONFIG_OVERRIDE permission. 1266 */ 1267 private boolean connectToUserSelectNetwork(int netId, int uid) { 1268 if (!mWifiConfigManager.enableNetwork(netId, true, uid)) { 1269 loge("connectToUserSelectNetwork uid " + uid 1270 + " did not have the permissions to enable=" + netId); 1271 return false; 1272 } 1273 if (!mWifiConfigManager.checkAndUpdateLastConnectUid(netId, uid)) { 1274 logi("connectToUserSelectNetwork Allowing uid " + uid 1275 + " with insufficient permissions to connect=" + netId); 1276 } 1277 // Trigger an immediate connection to the specified network. We're also noting the user 1278 // connect choice here, so that it will be considered in the next network selection. 1279 mWifiConnectivityManager.setUserConnectChoice(netId); 1280 if (mWifiInfo.getNetworkId() == netId) { 1281 // We're already connected to the user specified network, don't trigger a 1282 // reconnection. 1283 logi("connectToUserSelectNetwork already connecting/connected=" + netId); 1284 } else { 1285 startConnectToNetwork(netId, SUPPLICANT_BSSID_ANY); 1286 } 1287 return true; 1288 } 1289 1290 /** 1291 * ****************************************************** 1292 * Methods exposed for public use 1293 * ****************************************************** 1294 */ 1295 1296 public Messenger getMessenger() { 1297 return new Messenger(getHandler()); 1298 } 1299 1300 /** 1301 * TODO: doc 1302 */ 1303 public boolean syncPingSupplicant(AsyncChannel channel) { 1304 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1305 boolean result = (resultMsg.arg1 != FAILURE); 1306 resultMsg.recycle(); 1307 return result; 1308 } 1309 1310 /** 1311 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1312 * given to callingUid. 1313 * 1314 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1315 * workSource is specified. 1316 * @param workSource If not null, blame is given to workSource. 1317 * @param settings Scan settings, see {@link ScanSettings}. 1318 */ 1319 public void startScan(int callingUid, int scanCounter, 1320 ScanSettings settings, WorkSource workSource) { 1321 Bundle bundle = new Bundle(); 1322 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1323 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1324 bundle.putLong(SCAN_REQUEST_TIME, mClock.getWallClockMillis()); 1325 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1326 } 1327 1328 private long mDisconnectedTimeStamp = 0; 1329 1330 public long getDisconnectedTimeMilli() { 1331 if (getCurrentState() == mDisconnectedState 1332 && mDisconnectedTimeStamp != 0) { 1333 long now_ms = mClock.getWallClockMillis(); 1334 return now_ms - mDisconnectedTimeStamp; 1335 } 1336 return 0; 1337 } 1338 1339 // Last connect attempt is used to prevent scan requests: 1340 // - for a period of 10 seconds after attempting to connect 1341 private long lastConnectAttemptTimestamp = 0; 1342 private Set<Integer> lastScanFreqs = null; 1343 1344 // For debugging, keep track of last message status handling 1345 // TODO, find an equivalent mechanism as part of parent class 1346 private static final int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1347 private static final int MESSAGE_HANDLING_STATUS_OK = 1; 1348 private static final int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1349 private static final int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1350 private static final int MESSAGE_HANDLING_STATUS_FAIL = -2; 1351 private static final int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1352 private static final int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1353 private static final int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1354 private static final int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1355 private static final int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1356 1357 private int messageHandlingStatus = 0; 1358 1359 //TODO: this is used only to track connection attempts, however the link state and packet per 1360 //TODO: second logic should be folded into that 1361 private boolean checkOrDeferScanAllowed(Message msg) { 1362 long now = mClock.getWallClockMillis(); 1363 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1364 Message dmsg = Message.obtain(msg); 1365 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1366 return false; 1367 } 1368 return true; 1369 } 1370 1371 private int mOnTime = 0; 1372 private int mTxTime = 0; 1373 private int mRxTime = 0; 1374 1375 private int mOnTimeScreenStateChange = 0; 1376 private long lastOntimeReportTimeStamp = 0; 1377 private long lastScreenStateChangeTimeStamp = 0; 1378 private int mOnTimeLastReport = 0; 1379 private int mTxTimeLastReport = 0; 1380 private int mRxTimeLastReport = 0; 1381 1382 private long lastLinkLayerStatsUpdate = 0; 1383 1384 String reportOnTime() { 1385 long now = mClock.getWallClockMillis(); 1386 StringBuilder sb = new StringBuilder(); 1387 // Report stats since last report 1388 int on = mOnTime - mOnTimeLastReport; 1389 mOnTimeLastReport = mOnTime; 1390 int tx = mTxTime - mTxTimeLastReport; 1391 mTxTimeLastReport = mTxTime; 1392 int rx = mRxTime - mRxTimeLastReport; 1393 mRxTimeLastReport = mRxTime; 1394 int period = (int) (now - lastOntimeReportTimeStamp); 1395 lastOntimeReportTimeStamp = now; 1396 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1397 // Report stats since Screen State Changed 1398 on = mOnTime - mOnTimeScreenStateChange; 1399 period = (int) (now - lastScreenStateChangeTimeStamp); 1400 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1401 return sb.toString(); 1402 } 1403 1404 WifiLinkLayerStats getWifiLinkLayerStats() { 1405 WifiLinkLayerStats stats = null; 1406 if (mWifiLinkLayerStatsSupported > 0) { 1407 String name = "wlan0"; 1408 stats = mWifiNative.getWifiLinkLayerStats(name); 1409 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1410 mWifiLinkLayerStatsSupported -= 1; 1411 } else if (stats != null) { 1412 lastLinkLayerStatsUpdate = mClock.getWallClockMillis(); 1413 mOnTime = stats.on_time; 1414 mTxTime = stats.tx_time; 1415 mRxTime = stats.rx_time; 1416 mRunningBeaconCount = stats.beacon_rx; 1417 } 1418 } 1419 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1420 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1421 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1422 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1423 } else { 1424 mWifiInfo.updatePacketRates(stats, lastLinkLayerStatsUpdate); 1425 } 1426 return stats; 1427 } 1428 1429 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1430 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1431 if (ret != 0) { 1432 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1433 "): hardware error " + ret); 1434 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1435 } else { 1436 return ConnectivityManager.PacketKeepalive.SUCCESS; 1437 } 1438 } 1439 1440 int stopWifiIPPacketOffload(int slot) { 1441 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1442 if (ret != 0) { 1443 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1444 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1445 } else { 1446 return ConnectivityManager.PacketKeepalive.SUCCESS; 1447 } 1448 } 1449 1450 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1451 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1452 } 1453 1454 int stopRssiMonitoringOffload() { 1455 return mWifiNative.stopRssiMonitoring(); 1456 } 1457 1458 private void handleScanRequest(Message message) { 1459 ScanSettings settings = null; 1460 WorkSource workSource = null; 1461 1462 // unbundle parameters 1463 Bundle bundle = (Bundle) message.obj; 1464 1465 if (bundle != null) { 1466 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 1467 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 1468 } 1469 1470 Set<Integer> freqs = null; 1471 if (settings != null && settings.channelSet != null) { 1472 freqs = new HashSet<>(); 1473 for (WifiChannel channel : settings.channelSet) { 1474 freqs.add(channel.freqMHz); 1475 } 1476 } 1477 1478 // Retrieve the list of hidden network SSIDs to scan for. 1479 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = 1480 mWifiConfigManager.retrieveHiddenNetworkList(); 1481 1482 // call wifi native to start the scan 1483 if (startScanNative(freqs, hiddenNetworks, workSource)) { 1484 // a full scan covers everything, clearing scan request buffer 1485 if (freqs == null) 1486 mBufferedScanMsg.clear(); 1487 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 1488 return; 1489 } 1490 1491 // if reach here, scan request is rejected 1492 1493 if (!mIsScanOngoing) { 1494 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 1495 1496 // discard this request and pop up the next one 1497 if (mBufferedScanMsg.size() > 0) { 1498 sendMessage(mBufferedScanMsg.remove()); 1499 } 1500 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 1501 } else if (!mIsFullScanOngoing) { 1502 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 1503 // buffer the scan request to make sure specified channels will be scanned eventually 1504 if (freqs == null) 1505 mBufferedScanMsg.clear(); 1506 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 1507 Message msg = obtainMessage(CMD_START_SCAN, 1508 message.arg1, message.arg2, bundle); 1509 mBufferedScanMsg.add(msg); 1510 } else { 1511 // if too many requests in buffer, combine them into a single full scan 1512 bundle = new Bundle(); 1513 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 1514 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1515 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 1516 mBufferedScanMsg.clear(); 1517 mBufferedScanMsg.add(msg); 1518 } 1519 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 1520 } else { 1521 // mIsScanOngoing and mIsFullScanOngoing 1522 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 1523 } 1524 } 1525 1526 1527 // TODO this is a temporary measure to bridge between WifiScanner and WifiStateMachine until 1528 // scan functionality is refactored out of WifiStateMachine. 1529 /** 1530 * return true iff scan request is accepted 1531 */ 1532 private boolean startScanNative(final Set<Integer> freqs, 1533 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworkList, 1534 WorkSource workSource) { 1535 WifiScanner.ScanSettings settings = new WifiScanner.ScanSettings(); 1536 if (freqs == null) { 1537 settings.band = WifiScanner.WIFI_BAND_BOTH_WITH_DFS; 1538 } else { 1539 settings.band = WifiScanner.WIFI_BAND_UNSPECIFIED; 1540 int index = 0; 1541 settings.channels = new WifiScanner.ChannelSpec[freqs.size()]; 1542 for (Integer freq : freqs) { 1543 settings.channels[index++] = new WifiScanner.ChannelSpec(freq); 1544 } 1545 } 1546 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN 1547 | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT; 1548 1549 settings.hiddenNetworks = 1550 hiddenNetworkList.toArray( 1551 new WifiScanner.ScanSettings.HiddenNetwork[hiddenNetworkList.size()]); 1552 1553 WifiScanner.ScanListener nativeScanListener = new WifiScanner.ScanListener() { 1554 // ignore all events since WifiStateMachine is registered for the supplicant events 1555 @Override 1556 public void onSuccess() { 1557 } 1558 @Override 1559 public void onFailure(int reason, String description) { 1560 mIsScanOngoing = false; 1561 mIsFullScanOngoing = false; 1562 } 1563 @Override 1564 public void onResults(WifiScanner.ScanData[] results) { 1565 } 1566 @Override 1567 public void onFullResult(ScanResult fullScanResult) { 1568 } 1569 @Override 1570 public void onPeriodChanged(int periodInMs) { 1571 } 1572 }; 1573 mWifiScanner.startScan(settings, nativeScanListener, workSource); 1574 mIsScanOngoing = true; 1575 mIsFullScanOngoing = (freqs == null); 1576 lastScanFreqs = freqs; 1577 return true; 1578 } 1579 1580 /** 1581 * TODO: doc 1582 */ 1583 public void setSupplicantRunning(boolean enable) { 1584 if (enable) { 1585 sendMessage(CMD_START_SUPPLICANT); 1586 } else { 1587 sendMessage(CMD_STOP_SUPPLICANT); 1588 } 1589 } 1590 1591 /** 1592 * TODO: doc 1593 */ 1594 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 1595 if (enable) { 1596 sendMessage(CMD_START_AP, wifiConfig); 1597 } else { 1598 sendMessage(CMD_STOP_AP); 1599 } 1600 } 1601 1602 public void setWifiApConfiguration(WifiConfiguration config) { 1603 mWifiApConfigStore.setApConfiguration(config); 1604 } 1605 1606 public WifiConfiguration syncGetWifiApConfiguration() { 1607 return mWifiApConfigStore.getApConfiguration(); 1608 } 1609 1610 /** 1611 * TODO: doc 1612 */ 1613 public int syncGetWifiState() { 1614 return mWifiState.get(); 1615 } 1616 1617 /** 1618 * TODO: doc 1619 */ 1620 public String syncGetWifiStateByName() { 1621 switch (mWifiState.get()) { 1622 case WIFI_STATE_DISABLING: 1623 return "disabling"; 1624 case WIFI_STATE_DISABLED: 1625 return "disabled"; 1626 case WIFI_STATE_ENABLING: 1627 return "enabling"; 1628 case WIFI_STATE_ENABLED: 1629 return "enabled"; 1630 case WIFI_STATE_UNKNOWN: 1631 return "unknown state"; 1632 default: 1633 return "[invalid state]"; 1634 } 1635 } 1636 1637 /** 1638 * TODO: doc 1639 */ 1640 public int syncGetWifiApState() { 1641 return mWifiApState.get(); 1642 } 1643 1644 /** 1645 * TODO: doc 1646 */ 1647 public String syncGetWifiApStateByName() { 1648 switch (mWifiApState.get()) { 1649 case WIFI_AP_STATE_DISABLING: 1650 return "disabling"; 1651 case WIFI_AP_STATE_DISABLED: 1652 return "disabled"; 1653 case WIFI_AP_STATE_ENABLING: 1654 return "enabling"; 1655 case WIFI_AP_STATE_ENABLED: 1656 return "enabled"; 1657 case WIFI_AP_STATE_FAILED: 1658 return "failed"; 1659 default: 1660 return "[invalid state]"; 1661 } 1662 } 1663 1664 public boolean isConnected() { 1665 return getCurrentState() == mConnectedState; 1666 } 1667 1668 public boolean isDisconnected() { 1669 return getCurrentState() == mDisconnectedState; 1670 } 1671 1672 public boolean isSupplicantTransientState() { 1673 SupplicantState supplicantState = mWifiInfo.getSupplicantState(); 1674 if (supplicantState == SupplicantState.ASSOCIATING 1675 || supplicantState == SupplicantState.AUTHENTICATING 1676 || supplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 1677 || supplicantState == SupplicantState.GROUP_HANDSHAKE) { 1678 1679 if (mVerboseLoggingEnabled) { 1680 Log.d(TAG, "Supplicant is under transient state: " + supplicantState); 1681 } 1682 return true; 1683 } else { 1684 if (mVerboseLoggingEnabled) { 1685 Log.d(TAG, "Supplicant is under steady state: " + supplicantState); 1686 } 1687 } 1688 1689 return false; 1690 } 1691 1692 public boolean isLinkDebouncing() { 1693 return mIsLinkDebouncing; 1694 } 1695 1696 /** 1697 * Get status information for the current connection, if any. 1698 * 1699 * @return a {@link WifiInfo} object containing information about the current connection 1700 */ 1701 public WifiInfo syncRequestConnectionInfo() { 1702 return getWiFiInfoForUid(Binder.getCallingUid()); 1703 } 1704 1705 public WifiInfo getWifiInfo() { 1706 return mWifiInfo; 1707 } 1708 1709 public DhcpResults syncGetDhcpResults() { 1710 synchronized (mDhcpResultsLock) { 1711 return new DhcpResults(mDhcpResults); 1712 } 1713 } 1714 1715 /** 1716 * TODO: doc 1717 */ 1718 public void setOperationalMode(int mode) { 1719 if (mVerboseLoggingEnabled) log("setting operational mode to " + String.valueOf(mode)); 1720 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 1721 } 1722 1723 /** 1724 * Allow tests to confirm the operational mode for WSM. 1725 */ 1726 @VisibleForTesting 1727 protected int getOperationalModeForTest() { 1728 return mOperationalMode; 1729 } 1730 1731 /** 1732 * TODO: doc 1733 */ 1734 public List<ScanResult> syncGetScanResultsList() { 1735 synchronized (mScanResultsLock) { 1736 List<ScanResult> scanList = new ArrayList<>(); 1737 for (ScanDetail result : mScanResults) { 1738 scanList.add(new ScanResult(result.getScanResult())); 1739 } 1740 return scanList; 1741 } 1742 } 1743 1744 public boolean syncQueryPasspointIcon(AsyncChannel channel, long bssid, String fileName) { 1745 Bundle bundle = new Bundle(); 1746 bundle.putLong(EXTRA_OSU_ICON_QUERY_BSSID, bssid); 1747 bundle.putString(EXTRA_OSU_ICON_QUERY_FILENAME, fileName); 1748 Message resultMsg = channel.sendMessageSynchronously(CMD_QUERY_OSU_ICON, bundle); 1749 int result = resultMsg.arg1; 1750 resultMsg.recycle(); 1751 return result == 1; 1752 } 1753 1754 public int matchProviderWithCurrentNetwork(AsyncChannel channel, String fqdn) { 1755 Message resultMsg = channel.sendMessageSynchronously(CMD_MATCH_PROVIDER_NETWORK, fqdn); 1756 int result = resultMsg.arg1; 1757 resultMsg.recycle(); 1758 return result; 1759 } 1760 1761 /** 1762 * Deauthenticate and set the re-authentication hold off time for the current network 1763 * @param holdoff hold off time in milliseconds 1764 * @param ess set if the hold off pertains to an ESS rather than a BSS 1765 */ 1766 public void deauthenticateNetwork(AsyncChannel channel, long holdoff, boolean ess) { 1767 // TODO: This needs an implementation 1768 } 1769 1770 public void disableEphemeralNetwork(String SSID) { 1771 if (SSID != null) { 1772 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 1773 } 1774 } 1775 1776 /** 1777 * Disconnect from Access Point 1778 */ 1779 public void disconnectCommand() { 1780 sendMessage(CMD_DISCONNECT); 1781 } 1782 1783 public void disconnectCommand(int uid, int reason) { 1784 sendMessage(CMD_DISCONNECT, uid, reason); 1785 } 1786 1787 /** 1788 * Initiate a reconnection to AP 1789 */ 1790 public void reconnectCommand() { 1791 sendMessage(CMD_RECONNECT); 1792 } 1793 1794 /** 1795 * Initiate a re-association to AP 1796 */ 1797 public void reassociateCommand() { 1798 sendMessage(CMD_REASSOCIATE); 1799 } 1800 1801 /** 1802 * Reload networks and then reconnect; helps load correct data for TLS networks 1803 */ 1804 1805 public void reloadTlsNetworksAndReconnect() { 1806 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 1807 } 1808 1809 /** 1810 * Add a network synchronously 1811 * 1812 * @return network id of the new network 1813 */ 1814 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 1815 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 1816 int result = resultMsg.arg1; 1817 resultMsg.recycle(); 1818 return result; 1819 } 1820 1821 /** 1822 * Get configured networks synchronously 1823 * 1824 * @param channel 1825 * @return 1826 */ 1827 1828 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 1829 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 1830 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1831 resultMsg.recycle(); 1832 return result; 1833 } 1834 1835 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 1836 Message resultMsg = channel.sendMessageSynchronously( 1837 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 1838 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1839 resultMsg.recycle(); 1840 return result; 1841 } 1842 1843 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 1844 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 1845 return (WifiConfiguration) resultMsg.obj; 1846 } 1847 1848 /** 1849 * Get connection statistics synchronously 1850 * 1851 * @param channel 1852 * @return 1853 */ 1854 1855 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 1856 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 1857 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 1858 resultMsg.recycle(); 1859 return result; 1860 } 1861 1862 /** 1863 * Get adaptors synchronously 1864 */ 1865 1866 public int syncGetSupportedFeatures(AsyncChannel channel) { 1867 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 1868 int supportedFeatureSet = resultMsg.arg1; 1869 resultMsg.recycle(); 1870 1871 // Mask the feature set against system properties. 1872 boolean disableRtt = mPropertyService.getBoolean("config.disable_rtt", false); 1873 if (disableRtt) { 1874 supportedFeatureSet &= 1875 ~(WifiManager.WIFI_FEATURE_D2D_RTT | WifiManager.WIFI_FEATURE_D2AP_RTT); 1876 } 1877 1878 return supportedFeatureSet; 1879 } 1880 1881 /** 1882 * Get link layers stats for adapter synchronously 1883 */ 1884 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 1885 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 1886 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 1887 resultMsg.recycle(); 1888 return result; 1889 } 1890 1891 /** 1892 * Delete a network 1893 * 1894 * @param networkId id of the network to be removed 1895 */ 1896 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 1897 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 1898 boolean result = (resultMsg.arg1 != FAILURE); 1899 resultMsg.recycle(); 1900 return result; 1901 } 1902 1903 /** 1904 * Enable a network 1905 * 1906 * @param netId network id of the network 1907 * @param disableOthers true, if all other networks have to be disabled 1908 * @return {@code true} if the operation succeeds, {@code false} otherwise 1909 */ 1910 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 1911 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 1912 disableOthers ? 1 : 0); 1913 boolean result = (resultMsg.arg1 != FAILURE); 1914 resultMsg.recycle(); 1915 return result; 1916 } 1917 1918 /** 1919 * Disable a network 1920 * 1921 * @param netId network id of the network 1922 * @return {@code true} if the operation succeeds, {@code false} otherwise 1923 */ 1924 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 1925 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 1926 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 1927 resultMsg.recycle(); 1928 return result; 1929 } 1930 1931 /** 1932 * Retrieves a WPS-NFC configuration token for the specified network 1933 * 1934 * @return a hex string representation of the WPS-NFC configuration token 1935 */ 1936 public String syncGetWpsNfcConfigurationToken(int netId) { 1937 return mWifiNative.getNfcWpsConfigurationToken(netId); 1938 } 1939 1940 public void enableRssiPolling(boolean enabled) { 1941 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 1942 } 1943 1944 /** 1945 * Start filtering Multicast v4 packets 1946 */ 1947 public void startFilteringMulticastPackets() { 1948 mIpManager.setMulticastFilter(true); 1949 } 1950 1951 /** 1952 * Stop filtering Multicast v4 packets 1953 */ 1954 public void stopFilteringMulticastPackets() { 1955 mIpManager.setMulticastFilter(false); 1956 } 1957 1958 /** 1959 * Set high performance mode of operation. 1960 * Enabling would set active power mode and disable suspend optimizations; 1961 * disabling would set auto power mode and enable suspend optimizations 1962 * 1963 * @param enable true if enable, false otherwise 1964 */ 1965 public void setHighPerfModeEnabled(boolean enable) { 1966 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 1967 } 1968 1969 1970 /** 1971 * reset cached SIM credential data 1972 */ 1973 public synchronized void resetSimAuthNetworks(boolean simPresent) { 1974 sendMessage(CMD_RESET_SIM_NETWORKS, simPresent ? 1 : 0); 1975 } 1976 1977 /** 1978 * Get Network object of current wifi network 1979 * @return Network object of current wifi network 1980 */ 1981 public Network getCurrentNetwork() { 1982 if (mNetworkAgent != null) { 1983 return new Network(mNetworkAgent.netId); 1984 } else { 1985 return null; 1986 } 1987 } 1988 1989 /** 1990 * Enable TDLS for a specific MAC address 1991 */ 1992 public void enableTdls(String remoteMacAddress, boolean enable) { 1993 int enabler = enable ? 1 : 0; 1994 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 1995 } 1996 1997 /** 1998 * Send a message indicating bluetooth adapter connection state changed 1999 */ 2000 public void sendBluetoothAdapterStateChange(int state) { 2001 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 2002 } 2003 2004 /** 2005 * Send a message indicating a package has been uninstalled. 2006 */ 2007 public void removeAppConfigs(String packageName, int uid) { 2008 // Build partial AppInfo manually - package may not exist in database any more 2009 ApplicationInfo ai = new ApplicationInfo(); 2010 ai.packageName = packageName; 2011 ai.uid = uid; 2012 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2013 } 2014 2015 /** 2016 * Send a message indicating a user has been removed. 2017 */ 2018 public void removeUserConfigs(int userId) { 2019 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2020 } 2021 2022 /** 2023 * Save configuration on supplicant 2024 * 2025 * @return {@code true} if the operation succeeds, {@code false} otherwise 2026 * <p/> 2027 * TODO: deprecate this 2028 */ 2029 public boolean syncSaveConfig(AsyncChannel channel) { 2030 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2031 boolean result = (resultMsg.arg1 != FAILURE); 2032 resultMsg.recycle(); 2033 return result; 2034 } 2035 2036 public void updateBatteryWorkSource(WorkSource newSource) { 2037 synchronized (mRunningWifiUids) { 2038 try { 2039 if (newSource != null) { 2040 mRunningWifiUids.set(newSource); 2041 } 2042 if (mIsRunning) { 2043 if (mReportedRunning) { 2044 // If the work source has changed since last time, need 2045 // to remove old work from battery stats. 2046 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2047 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2048 mRunningWifiUids); 2049 mLastRunningWifiUids.set(mRunningWifiUids); 2050 } 2051 } else { 2052 // Now being started, report it. 2053 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2054 mLastRunningWifiUids.set(mRunningWifiUids); 2055 mReportedRunning = true; 2056 } 2057 } else { 2058 if (mReportedRunning) { 2059 // Last reported we were running, time to stop. 2060 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2061 mLastRunningWifiUids.clear(); 2062 mReportedRunning = false; 2063 } 2064 } 2065 mWakeLock.setWorkSource(newSource); 2066 } catch (RemoteException ignore) { 2067 } 2068 } 2069 } 2070 2071 public void dumpIpManager(FileDescriptor fd, PrintWriter pw, String[] args) { 2072 mIpManager.dump(fd, pw, args); 2073 } 2074 2075 @Override 2076 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2077 if (args.length > 1 && WifiMetrics.PROTO_DUMP_ARG.equals(args[0]) 2078 && WifiMetrics.CLEAN_DUMP_ARG.equals(args[1])) { 2079 // Dump only wifi metrics serialized proto bytes (base64) 2080 updateWifiMetrics(); 2081 mWifiMetrics.dump(fd, pw, args); 2082 return; 2083 } 2084 super.dump(fd, pw, args); 2085 mSupplicantStateTracker.dump(fd, pw, args); 2086 pw.println("mLinkProperties " + mLinkProperties); 2087 pw.println("mWifiInfo " + mWifiInfo); 2088 pw.println("mDhcpResults " + mDhcpResults); 2089 pw.println("mNetworkInfo " + mNetworkInfo); 2090 pw.println("mLastSignalLevel " + mLastSignalLevel); 2091 pw.println("mLastBssid " + mLastBssid); 2092 pw.println("mLastNetworkId " + mLastNetworkId); 2093 pw.println("mOperationalMode " + mOperationalMode); 2094 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2095 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2096 pw.println("Supplicant status " + mWifiNative.status(true)); 2097 pw.println("mSystemSupportsFastBssTransition " 2098 + mWifiSupplicantControl.getSystemSupportsFastBssTransition()); 2099 if (mCountryCode.getCountryCodeSentToDriver() != null) { 2100 pw.println("CountryCode sent to driver " + mCountryCode.getCountryCodeSentToDriver()); 2101 } else { 2102 if (mCountryCode.getCountryCode() != null) { 2103 pw.println("CountryCode: " + 2104 mCountryCode.getCountryCode() + " was not sent to driver"); 2105 } else { 2106 pw.println("CountryCode was not initialized"); 2107 } 2108 } 2109 if (mNetworkFactory != null) { 2110 mNetworkFactory.dump(fd, pw, args); 2111 } else { 2112 pw.println("mNetworkFactory is not initialized"); 2113 } 2114 2115 if (mUntrustedNetworkFactory != null) { 2116 mUntrustedNetworkFactory.dump(fd, pw, args); 2117 } else { 2118 pw.println("mUntrustedNetworkFactory is not initialized"); 2119 } 2120 pw.println("Wlan Wake Reasons:" + mWifiNative.getWlanWakeReasonCount()); 2121 pw.println(); 2122 updateWifiMetrics(); 2123 mWifiMetrics.dump(fd, pw, args); 2124 pw.println(); 2125 2126 mWifiConfigManager.dump(fd, pw, args); 2127 pw.println(); 2128 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_USER_ACTION); 2129 mWifiDiagnostics.dump(fd, pw, args); 2130 dumpIpManager(fd, pw, args); 2131 mWifiNetworkSelector.dump(fd, pw, args); 2132 } 2133 2134 public void handleUserSwitch(int userId) { 2135 sendMessage(CMD_USER_SWITCH, userId); 2136 } 2137 2138 public void handleUserUnlock(int userId) { 2139 sendMessage(CMD_USER_UNLOCK, userId); 2140 } 2141 2142 public void handleUserStop(int userId) { 2143 sendMessage(CMD_USER_STOP, userId); 2144 } 2145 2146 /** 2147 * ****************************************************** 2148 * Internal private functions 2149 * ****************************************************** 2150 */ 2151 2152 private void logStateAndMessage(Message message, State state) { 2153 messageHandlingStatus = 0; 2154 if (mVerboseLoggingEnabled) { 2155 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2156 } 2157 } 2158 2159 /** 2160 * helper, prints the milli time since boot wi and w/o suspended time 2161 */ 2162 String printTime() { 2163 StringBuilder sb = new StringBuilder(); 2164 sb.append(" rt=").append(mClock.getUptimeSinceBootMillis()); 2165 sb.append("/").append(mClock.getElapsedSinceBootMillis()); 2166 return sb.toString(); 2167 } 2168 2169 /** 2170 * Return the additional string to be logged by LogRec, default 2171 * 2172 * @param msg that was processed 2173 * @return information to be logged as a String 2174 */ 2175 @Override 2176 protected String getLogRecString(Message msg) { 2177 WifiConfiguration config; 2178 Long now; 2179 String report; 2180 String key; 2181 StringBuilder sb = new StringBuilder(); 2182 if (mScreenOn) { 2183 sb.append("!"); 2184 } 2185 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2186 sb.append("(").append(messageHandlingStatus).append(")"); 2187 } 2188 sb.append(smToString(msg)); 2189 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2190 sb.append(" uid=" + msg.sendingUid); 2191 } 2192 sb.append(" ").append(printTime()); 2193 switch (msg.what) { 2194 case CMD_START_SCAN: 2195 now = mClock.getWallClockMillis(); 2196 sb.append(" "); 2197 sb.append(Integer.toString(msg.arg1)); 2198 sb.append(" "); 2199 sb.append(Integer.toString(msg.arg2)); 2200 sb.append(" ic="); 2201 sb.append(Integer.toString(sScanAlarmIntentCount)); 2202 if (msg.obj != null) { 2203 Bundle bundle = (Bundle) msg.obj; 2204 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2205 if (request != 0) { 2206 sb.append(" proc(ms):").append(now - request); 2207 } 2208 } 2209 if (mIsScanOngoing) sb.append(" onGoing"); 2210 if (mIsFullScanOngoing) sb.append(" full"); 2211 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2212 sb.append(" f=").append(mWifiInfo.getFrequency()); 2213 sb.append(" sc=").append(mWifiInfo.score); 2214 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2215 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2216 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2217 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2218 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2219 if (lastScanFreqs != null) { 2220 sb.append(" list="); 2221 for(int freq : lastScanFreqs) { 2222 sb.append(freq).append(","); 2223 } 2224 } 2225 report = reportOnTime(); 2226 if (report != null) { 2227 sb.append(" ").append(report); 2228 } 2229 break; 2230 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2231 sb.append(" "); 2232 sb.append(Integer.toString(msg.arg1)); 2233 sb.append(" "); 2234 sb.append(Integer.toString(msg.arg2)); 2235 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2236 if (stateChangeResult != null) { 2237 sb.append(stateChangeResult.toString()); 2238 } 2239 break; 2240 case WifiManager.SAVE_NETWORK: 2241 sb.append(" "); 2242 sb.append(Integer.toString(msg.arg1)); 2243 sb.append(" "); 2244 sb.append(Integer.toString(msg.arg2)); 2245 config = (WifiConfiguration) msg.obj; 2246 if (config != null) { 2247 sb.append(" ").append(config.configKey()); 2248 sb.append(" nid=").append(config.networkId); 2249 if (config.hiddenSSID) { 2250 sb.append(" hidden"); 2251 } 2252 if (config.preSharedKey != null 2253 && !config.preSharedKey.equals("*")) { 2254 sb.append(" hasPSK"); 2255 } 2256 if (config.ephemeral) { 2257 sb.append(" ephemeral"); 2258 } 2259 if (config.selfAdded) { 2260 sb.append(" selfAdded"); 2261 } 2262 sb.append(" cuid=").append(config.creatorUid); 2263 sb.append(" suid=").append(config.lastUpdateUid); 2264 } 2265 break; 2266 case WifiManager.FORGET_NETWORK: 2267 sb.append(" "); 2268 sb.append(Integer.toString(msg.arg1)); 2269 sb.append(" "); 2270 sb.append(Integer.toString(msg.arg2)); 2271 config = (WifiConfiguration) msg.obj; 2272 if (config != null) { 2273 sb.append(" ").append(config.configKey()); 2274 sb.append(" nid=").append(config.networkId); 2275 if (config.hiddenSSID) { 2276 sb.append(" hidden"); 2277 } 2278 if (config.preSharedKey != null) { 2279 sb.append(" hasPSK"); 2280 } 2281 if (config.ephemeral) { 2282 sb.append(" ephemeral"); 2283 } 2284 if (config.selfAdded) { 2285 sb.append(" selfAdded"); 2286 } 2287 sb.append(" cuid=").append(config.creatorUid); 2288 sb.append(" suid=").append(config.lastUpdateUid); 2289 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2290 config.getNetworkSelectionStatus(); 2291 sb.append(" ajst=").append( 2292 netWorkSelectionStatus.getNetworkStatusString()); 2293 } 2294 break; 2295 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2296 sb.append(" "); 2297 sb.append(Integer.toString(msg.arg1)); 2298 sb.append(" "); 2299 sb.append(Integer.toString(msg.arg2)); 2300 String bssid = (String) msg.obj; 2301 if (bssid != null && bssid.length() > 0) { 2302 sb.append(" "); 2303 sb.append(bssid); 2304 } 2305 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2306 break; 2307 case WifiMonitor.SCAN_RESULTS_EVENT: 2308 sb.append(" "); 2309 sb.append(Integer.toString(msg.arg1)); 2310 sb.append(" "); 2311 sb.append(Integer.toString(msg.arg2)); 2312 if (mScanResults != null) { 2313 sb.append(" found="); 2314 sb.append(mScanResults.size()); 2315 } 2316 sb.append(" known=").append(mNumScanResultsKnown); 2317 sb.append(" got=").append(mNumScanResultsReturned); 2318 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2319 sb.append(String.format(" con=%d", mConnectionReqCount)); 2320 sb.append(String.format(" untrustedcn=%d", mUntrustedReqCount)); 2321 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2322 if (key != null) { 2323 sb.append(" last=").append(key); 2324 } 2325 break; 2326 case WifiMonitor.SCAN_FAILED_EVENT: 2327 break; 2328 case WifiMonitor.NETWORK_CONNECTION_EVENT: 2329 sb.append(" "); 2330 sb.append(Integer.toString(msg.arg1)); 2331 sb.append(" "); 2332 sb.append(Integer.toString(msg.arg2)); 2333 sb.append(" ").append(mLastBssid); 2334 sb.append(" nid=").append(mLastNetworkId); 2335 config = getCurrentWifiConfiguration(); 2336 if (config != null) { 2337 sb.append(" ").append(config.configKey()); 2338 } 2339 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2340 if (key != null) { 2341 sb.append(" last=").append(key); 2342 } 2343 break; 2344 case CMD_TARGET_BSSID: 2345 case CMD_ASSOCIATED_BSSID: 2346 sb.append(" "); 2347 sb.append(Integer.toString(msg.arg1)); 2348 sb.append(" "); 2349 sb.append(Integer.toString(msg.arg2)); 2350 if (msg.obj != null) { 2351 sb.append(" BSSID=").append((String) msg.obj); 2352 } 2353 if (mTargetRoamBSSID != null) { 2354 sb.append(" Target=").append(mTargetRoamBSSID); 2355 } 2356 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2357 break; 2358 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 2359 if (msg.obj != null) { 2360 sb.append(" ").append((String) msg.obj); 2361 } 2362 sb.append(" nid=").append(msg.arg1); 2363 sb.append(" reason=").append(msg.arg2); 2364 if (mLastBssid != null) { 2365 sb.append(" lastbssid=").append(mLastBssid); 2366 } 2367 if (mWifiInfo.getFrequency() != -1) { 2368 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2369 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2370 } 2371 if (isLinkDebouncing()) { 2372 sb.append(" debounce"); 2373 } 2374 break; 2375 case WifiMonitor.SSID_TEMP_DISABLED: 2376 case WifiMonitor.SSID_REENABLED: 2377 sb.append(" nid=").append(msg.arg1); 2378 if (msg.obj != null) { 2379 sb.append(" ").append((String) msg.obj); 2380 } 2381 config = getCurrentWifiConfiguration(); 2382 if (config != null) { 2383 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2384 config.getNetworkSelectionStatus(); 2385 sb.append(" cur=").append(config.configKey()); 2386 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 2387 if (config.selfAdded) { 2388 sb.append(" selfAdded"); 2389 } 2390 if (config.status != 0) { 2391 sb.append(" st=").append(config.status); 2392 sb.append(" rs=").append( 2393 netWorkSelectionStatus.getNetworkDisableReasonString()); 2394 } 2395 if (config.lastConnected != 0) { 2396 now = mClock.getWallClockMillis(); 2397 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 2398 } 2399 if (mLastBssid != null) { 2400 sb.append(" lastbssid=").append(mLastBssid); 2401 } 2402 if (mWifiInfo.getFrequency() != -1) { 2403 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2404 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2405 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 2406 } 2407 } 2408 break; 2409 case CMD_RSSI_POLL: 2410 case CMD_UNWANTED_NETWORK: 2411 case WifiManager.RSSI_PKTCNT_FETCH: 2412 sb.append(" "); 2413 sb.append(Integer.toString(msg.arg1)); 2414 sb.append(" "); 2415 sb.append(Integer.toString(msg.arg2)); 2416 if (mWifiInfo.getSSID() != null) 2417 if (mWifiInfo.getSSID() != null) 2418 sb.append(" ").append(mWifiInfo.getSSID()); 2419 if (mWifiInfo.getBSSID() != null) 2420 sb.append(" ").append(mWifiInfo.getBSSID()); 2421 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2422 sb.append(" f=").append(mWifiInfo.getFrequency()); 2423 sb.append(" sc=").append(mWifiInfo.score); 2424 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2425 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2426 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2427 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2428 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2429 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2430 report = reportOnTime(); 2431 if (report != null) { 2432 sb.append(" ").append(report); 2433 } 2434 if (mWifiScoreReport.isLastReportValid()) { 2435 sb.append(mWifiScoreReport.getLastReport()); 2436 } 2437 break; 2438 case CMD_START_CONNECT: 2439 case WifiManager.CONNECT_NETWORK: 2440 sb.append(" "); 2441 sb.append(Integer.toString(msg.arg1)); 2442 sb.append(" "); 2443 sb.append(Integer.toString(msg.arg2)); 2444 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2445 if (config != null) { 2446 sb.append(" ").append(config.configKey()); 2447 if (config.visibility != null) { 2448 sb.append(" ").append(config.visibility.toString()); 2449 } 2450 } 2451 if (mTargetRoamBSSID != null) { 2452 sb.append(" ").append(mTargetRoamBSSID); 2453 } 2454 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2455 config = getCurrentWifiConfiguration(); 2456 if (config != null) { 2457 sb.append(config.configKey()); 2458 if (config.visibility != null) { 2459 sb.append(" ").append(config.visibility.toString()); 2460 } 2461 } 2462 break; 2463 case CMD_START_ROAM: 2464 sb.append(" "); 2465 sb.append(Integer.toString(msg.arg1)); 2466 sb.append(" "); 2467 sb.append(Integer.toString(msg.arg2)); 2468 ScanResult result = (ScanResult) msg.obj; 2469 if (result != null) { 2470 now = mClock.getWallClockMillis(); 2471 sb.append(" bssid=").append(result.BSSID); 2472 sb.append(" rssi=").append(result.level); 2473 sb.append(" freq=").append(result.frequency); 2474 if (result.seen > 0 && result.seen < now) { 2475 sb.append(" seen=").append(now - result.seen); 2476 } else { 2477 // Somehow the timestamp for this scan result is inconsistent 2478 sb.append(" !seen=").append(result.seen); 2479 } 2480 } 2481 if (mTargetRoamBSSID != null) { 2482 sb.append(" ").append(mTargetRoamBSSID); 2483 } 2484 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2485 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 2486 break; 2487 case CMD_ADD_OR_UPDATE_NETWORK: 2488 sb.append(" "); 2489 sb.append(Integer.toString(msg.arg1)); 2490 sb.append(" "); 2491 sb.append(Integer.toString(msg.arg2)); 2492 if (msg.obj != null) { 2493 config = (WifiConfiguration) msg.obj; 2494 sb.append(" ").append(config.configKey()); 2495 sb.append(" prio=").append(config.priority); 2496 sb.append(" status=").append(config.status); 2497 if (config.BSSID != null) { 2498 sb.append(" ").append(config.BSSID); 2499 } 2500 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 2501 if (curConfig != null) { 2502 if (curConfig.configKey().equals(config.configKey())) { 2503 sb.append(" is current"); 2504 } else { 2505 sb.append(" current=").append(curConfig.configKey()); 2506 sb.append(" prio=").append(curConfig.priority); 2507 sb.append(" status=").append(curConfig.status); 2508 } 2509 } 2510 } 2511 break; 2512 case WifiManager.DISABLE_NETWORK: 2513 case CMD_ENABLE_NETWORK: 2514 sb.append(" "); 2515 sb.append(Integer.toString(msg.arg1)); 2516 sb.append(" "); 2517 sb.append(Integer.toString(msg.arg2)); 2518 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2519 if (key != null) { 2520 sb.append(" last=").append(key); 2521 } 2522 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2523 if (config != null && (key == null || !config.configKey().equals(key))) { 2524 sb.append(" target=").append(key); 2525 } 2526 break; 2527 case CMD_GET_CONFIGURED_NETWORKS: 2528 sb.append(" "); 2529 sb.append(Integer.toString(msg.arg1)); 2530 sb.append(" "); 2531 sb.append(Integer.toString(msg.arg2)); 2532 sb.append(" num=").append(mWifiConfigManager.getConfiguredNetworks().size()); 2533 break; 2534 case DhcpClient.CMD_PRE_DHCP_ACTION: 2535 sb.append(" "); 2536 sb.append(Integer.toString(msg.arg1)); 2537 sb.append(" "); 2538 sb.append(Integer.toString(msg.arg2)); 2539 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 2540 sb.append(",").append(mWifiInfo.txBad); 2541 sb.append(",").append(mWifiInfo.txRetries); 2542 break; 2543 case DhcpClient.CMD_POST_DHCP_ACTION: 2544 sb.append(" "); 2545 sb.append(Integer.toString(msg.arg1)); 2546 sb.append(" "); 2547 sb.append(Integer.toString(msg.arg2)); 2548 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2549 sb.append(" OK "); 2550 } else if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2551 sb.append(" FAIL "); 2552 } 2553 if (mLinkProperties != null) { 2554 sb.append(" "); 2555 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2556 } 2557 break; 2558 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 2559 sb.append(" "); 2560 sb.append(Integer.toString(msg.arg1)); 2561 sb.append(" "); 2562 sb.append(Integer.toString(msg.arg2)); 2563 if (msg.obj != null) { 2564 NetworkInfo info = (NetworkInfo) msg.obj; 2565 NetworkInfo.State state = info.getState(); 2566 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 2567 if (state != null) { 2568 sb.append(" st=").append(state); 2569 } 2570 if (detailedState != null) { 2571 sb.append("/").append(detailedState); 2572 } 2573 } 2574 break; 2575 case CMD_IP_CONFIGURATION_LOST: 2576 int count = -1; 2577 WifiConfiguration c = getCurrentWifiConfiguration(); 2578 if (c != null) { 2579 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 2580 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 2581 } 2582 sb.append(" "); 2583 sb.append(Integer.toString(msg.arg1)); 2584 sb.append(" "); 2585 sb.append(Integer.toString(msg.arg2)); 2586 sb.append(" failures: "); 2587 sb.append(Integer.toString(count)); 2588 sb.append("/"); 2589 sb.append(Integer.toString(mFacade.getIntegerSetting( 2590 mContext, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, 0))); 2591 if (mWifiInfo.getBSSID() != null) { 2592 sb.append(" ").append(mWifiInfo.getBSSID()); 2593 } 2594 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2595 break; 2596 case CMD_UPDATE_LINKPROPERTIES: 2597 sb.append(" "); 2598 sb.append(Integer.toString(msg.arg1)); 2599 sb.append(" "); 2600 sb.append(Integer.toString(msg.arg2)); 2601 if (mLinkProperties != null) { 2602 sb.append(" "); 2603 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2604 } 2605 break; 2606 case CMD_IP_REACHABILITY_LOST: 2607 if (msg.obj != null) { 2608 sb.append(" ").append((String) msg.obj); 2609 } 2610 break; 2611 case CMD_INSTALL_PACKET_FILTER: 2612 sb.append(" len=" + ((byte[])msg.obj).length); 2613 break; 2614 case CMD_SET_FALLBACK_PACKET_FILTERING: 2615 sb.append(" enabled=" + (boolean)msg.obj); 2616 break; 2617 case CMD_ROAM_WATCHDOG_TIMER: 2618 sb.append(" "); 2619 sb.append(Integer.toString(msg.arg1)); 2620 sb.append(" "); 2621 sb.append(Integer.toString(msg.arg2)); 2622 sb.append(" cur=").append(roamWatchdogCount); 2623 break; 2624 case CMD_DISCONNECTING_WATCHDOG_TIMER: 2625 sb.append(" "); 2626 sb.append(Integer.toString(msg.arg1)); 2627 sb.append(" "); 2628 sb.append(Integer.toString(msg.arg2)); 2629 sb.append(" cur=").append(disconnectingWatchdogCount); 2630 break; 2631 case CMD_START_RSSI_MONITORING_OFFLOAD: 2632 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 2633 case CMD_RSSI_THRESHOLD_BREACH: 2634 sb.append(" rssi="); 2635 sb.append(Integer.toString(msg.arg1)); 2636 sb.append(" thresholds="); 2637 sb.append(Arrays.toString(mRssiRanges)); 2638 break; 2639 case CMD_USER_SWITCH: 2640 sb.append(" userId="); 2641 sb.append(Integer.toString(msg.arg1)); 2642 break; 2643 case CMD_IPV4_PROVISIONING_SUCCESS: 2644 sb.append(" "); 2645 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2646 sb.append("DHCP_OK"); 2647 } else if (msg.arg1 == CMD_STATIC_IP_SUCCESS) { 2648 sb.append("STATIC_OK"); 2649 } else { 2650 sb.append(Integer.toString(msg.arg1)); 2651 } 2652 break; 2653 case CMD_IPV4_PROVISIONING_FAILURE: 2654 sb.append(" "); 2655 if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2656 sb.append("DHCP_FAIL"); 2657 } else if (msg.arg1 == CMD_STATIC_IP_FAILURE) { 2658 sb.append("STATIC_FAIL"); 2659 } else { 2660 sb.append(Integer.toString(msg.arg1)); 2661 } 2662 break; 2663 default: 2664 sb.append(" "); 2665 sb.append(Integer.toString(msg.arg1)); 2666 sb.append(" "); 2667 sb.append(Integer.toString(msg.arg2)); 2668 break; 2669 } 2670 2671 return sb.toString(); 2672 } 2673 2674 private void handleScreenStateChanged(boolean screenOn) { 2675 mScreenOn = screenOn; 2676 if (mVerboseLoggingEnabled) { 2677 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 2678 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 2679 + " state " + getCurrentState().getName() 2680 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 2681 } 2682 enableRssiPolling(screenOn); 2683 if (mUserWantsSuspendOpt.get()) { 2684 int shouldReleaseWakeLock = 0; 2685 if (screenOn) { 2686 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, shouldReleaseWakeLock); 2687 } else { 2688 if (isConnected()) { 2689 // Allow 2s for suspend optimizations to be set 2690 mSuspendWakeLock.acquire(2000); 2691 shouldReleaseWakeLock = 1; 2692 } 2693 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, shouldReleaseWakeLock); 2694 } 2695 } 2696 2697 getWifiLinkLayerStats(); 2698 mOnTimeScreenStateChange = mOnTime; 2699 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 2700 2701 mWifiMetrics.setScreenState(screenOn); 2702 2703 if (mWifiConnectivityManager != null) { 2704 mWifiConnectivityManager.handleScreenStateChanged(screenOn); 2705 } 2706 2707 if (mVerboseLoggingEnabled) log("handleScreenStateChanged Exit: " + screenOn); 2708 } 2709 2710 private void checkAndSetConnectivityInstance() { 2711 if (mCm == null) { 2712 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2713 } 2714 } 2715 2716 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 2717 if (mVerboseLoggingEnabled) { 2718 log("setSuspendOptimizationsNative: " + reason + " " + enabled 2719 + " -want " + mUserWantsSuspendOpt.get() 2720 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2721 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2722 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2723 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2724 } 2725 //mWifiNative.setSuspendOptimizations(enabled); 2726 2727 if (enabled) { 2728 mSuspendOptNeedsDisabled &= ~reason; 2729 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 2730 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 2731 if (mVerboseLoggingEnabled) { 2732 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 2733 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2734 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2735 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2736 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2737 } 2738 mWifiNative.setSuspendOptimizations(true); 2739 } 2740 } else { 2741 mSuspendOptNeedsDisabled |= reason; 2742 mWifiNative.setSuspendOptimizations(false); 2743 } 2744 } 2745 2746 private void setSuspendOptimizations(int reason, boolean enabled) { 2747 if (mVerboseLoggingEnabled) log("setSuspendOptimizations: " + reason + " " + enabled); 2748 if (enabled) { 2749 mSuspendOptNeedsDisabled &= ~reason; 2750 } else { 2751 mSuspendOptNeedsDisabled |= reason; 2752 } 2753 if (mVerboseLoggingEnabled) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2754 } 2755 2756 private void setWifiState(int wifiState) { 2757 final int previousWifiState = mWifiState.get(); 2758 2759 try { 2760 if (wifiState == WIFI_STATE_ENABLED) { 2761 mBatteryStats.noteWifiOn(); 2762 } else if (wifiState == WIFI_STATE_DISABLED) { 2763 mBatteryStats.noteWifiOff(); 2764 } 2765 } catch (RemoteException e) { 2766 loge("Failed to note battery stats in wifi"); 2767 } 2768 2769 mWifiState.set(wifiState); 2770 2771 if (mVerboseLoggingEnabled) log("setWifiState: " + syncGetWifiStateByName()); 2772 2773 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 2774 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2775 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 2776 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 2777 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2778 } 2779 2780 private void setWifiApState(int wifiApState, int reason) { 2781 final int previousWifiApState = mWifiApState.get(); 2782 2783 try { 2784 if (wifiApState == WIFI_AP_STATE_ENABLED) { 2785 mBatteryStats.noteWifiOn(); 2786 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 2787 mBatteryStats.noteWifiOff(); 2788 } 2789 } catch (RemoteException e) { 2790 loge("Failed to note battery stats in wifi"); 2791 } 2792 2793 // Update state 2794 mWifiApState.set(wifiApState); 2795 2796 if (mVerboseLoggingEnabled) log("setWifiApState: " + syncGetWifiApStateByName()); 2797 2798 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 2799 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2800 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 2801 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 2802 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 2803 //only set reason number when softAP start failed 2804 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 2805 } 2806 2807 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2808 } 2809 2810 private void setScanResults() { 2811 mNumScanResultsKnown = 0; 2812 mNumScanResultsReturned = 0; 2813 2814 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 2815 2816 if (scanResults.isEmpty()) { 2817 mScanResults = new ArrayList<>(); 2818 return; 2819 } 2820 2821 // TODO(b/31065385): mWifiConfigManager.trimANQPCache(false); 2822 2823 boolean connected = mLastBssid != null; 2824 long activeBssid = 0L; 2825 if (connected) { 2826 try { 2827 activeBssid = Utils.parseMac(mLastBssid); 2828 } catch (IllegalArgumentException iae) { 2829 connected = false; 2830 } 2831 } 2832 2833 synchronized (mScanResultsLock) { 2834 mScanResults = scanResults; 2835 mNumScanResultsReturned = mScanResults.size(); 2836 } 2837 2838 if (isLinkDebouncing()) { 2839 // If debouncing, we dont re-select a SSID or BSSID hence 2840 // there is no need to call the network selection code 2841 // in WifiAutoJoinController, instead, 2842 // just try to reconnect to the same SSID by triggering a roam 2843 // The third parameter 1 means roam not from network selection but debouncing 2844 sendMessage(CMD_START_ROAM, mLastNetworkId, 1, null); 2845 } 2846 } 2847 2848 /* 2849 * Fetch RSSI, linkspeed, and frequency on current connection 2850 */ 2851 private void fetchRssiLinkSpeedAndFrequencyNative() { 2852 Integer newRssi = null; 2853 Integer newLinkSpeed = null; 2854 Integer newFrequency = null; 2855 int[] poll_result = null; 2856 try { 2857 poll_result = mClientInterface.signalPoll(); 2858 if (poll_result == null || poll_result.length != 3) { 2859 return; 2860 } 2861 } catch (RemoteException e1) { } 2862 2863 newRssi = poll_result[0]; 2864 newLinkSpeed = poll_result[1]; 2865 newFrequency = poll_result[2]; 2866 2867 if (mVerboseLoggingEnabled) { 2868 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 2869 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 2870 } 2871 2872 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 2873 // screen out invalid values 2874 /* some implementations avoid negative values by adding 256 2875 * so we need to adjust for that here. 2876 */ 2877 if (newRssi > 0) newRssi -= 256; 2878 mWifiInfo.setRssi(newRssi); 2879 /* 2880 * Log the rssi poll value in metrics 2881 */ 2882 mWifiMetrics.incrementRssiPollRssiCount(newRssi); 2883 /* 2884 * Rather then sending the raw RSSI out every time it 2885 * changes, we precalculate the signal level that would 2886 * be displayed in the status bar, and only send the 2887 * broadcast if that much more coarse-grained number 2888 * changes. This cuts down greatly on the number of 2889 * broadcasts, at the cost of not informing others 2890 * interested in RSSI of all the changes in signal 2891 * level. 2892 */ 2893 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 2894 if (newSignalLevel != mLastSignalLevel) { 2895 updateCapabilities(getCurrentWifiConfiguration()); 2896 sendRssiChangeBroadcast(newRssi); 2897 } 2898 mLastSignalLevel = newSignalLevel; 2899 } else { 2900 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 2901 updateCapabilities(getCurrentWifiConfiguration()); 2902 } 2903 2904 if (newLinkSpeed != null) { 2905 mWifiInfo.setLinkSpeed(newLinkSpeed); 2906 } 2907 if (newFrequency != null && newFrequency > 0) { 2908 if (ScanResult.is5GHz(newFrequency)) { 2909 mWifiConnectionStatistics.num5GhzConnected++; 2910 } 2911 if (ScanResult.is24GHz(newFrequency)) { 2912 mWifiConnectionStatistics.num24GhzConnected++; 2913 } 2914 mWifiInfo.setFrequency(newFrequency); 2915 } 2916 mWifiConfigManager.updateScanDetailCacheFromWifiInfo(mWifiInfo); 2917 } 2918 2919 // Polling has completed, hence we wont have a score anymore 2920 private void cleanWifiScore() { 2921 mWifiInfo.txBadRate = 0; 2922 mWifiInfo.txSuccessRate = 0; 2923 mWifiInfo.txRetriesRate = 0; 2924 mWifiInfo.rxSuccessRate = 0; 2925 mWifiScoreReport.reset(); 2926 } 2927 2928 /** 2929 * Fetch TX packet counters on current connection 2930 */ 2931 private void fetchPktcntNative(RssiPacketCountInfo info) { 2932 int[] counters = null; 2933 try { 2934 counters = mClientInterface.getPacketCounters(); 2935 if (counters == null || counters.length != 2) { 2936 return; 2937 } 2938 } catch (RemoteException e1) {} 2939 info.txgood = counters[0]; 2940 info.txbad = counters[1]; 2941 } 2942 2943 private void updateLinkProperties(LinkProperties newLp) { 2944 if (mVerboseLoggingEnabled) { 2945 log("Link configuration changed for netId: " + mLastNetworkId 2946 + " old: " + mLinkProperties + " new: " + newLp); 2947 } 2948 // We own this instance of LinkProperties because IpManager passes us a copy. 2949 mLinkProperties = newLp; 2950 if (mNetworkAgent != null) { 2951 mNetworkAgent.sendLinkProperties(mLinkProperties); 2952 } 2953 2954 if (getNetworkDetailedState() == DetailedState.CONNECTED) { 2955 // If anything has changed and we're already connected, send out a notification. 2956 // TODO: Update all callers to use NetworkCallbacks and delete this. 2957 sendLinkConfigurationChangedBroadcast(); 2958 } 2959 2960 if (mVerboseLoggingEnabled) { 2961 StringBuilder sb = new StringBuilder(); 2962 sb.append("updateLinkProperties nid: " + mLastNetworkId); 2963 sb.append(" state: " + getNetworkDetailedState()); 2964 2965 if (mLinkProperties != null) { 2966 sb.append(" "); 2967 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2968 } 2969 logd(sb.toString()); 2970 } 2971 } 2972 2973 /** 2974 * Clears all our link properties. 2975 */ 2976 private void clearLinkProperties() { 2977 // Clear the link properties obtained from DHCP. The only caller of this 2978 // function has already called IpManager#stop(), which clears its state. 2979 synchronized (mDhcpResultsLock) { 2980 if (mDhcpResults != null) { 2981 mDhcpResults.clear(); 2982 } 2983 } 2984 2985 // Now clear the merged link properties. 2986 mLinkProperties.clear(); 2987 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 2988 } 2989 2990 /** 2991 * try to update default route MAC address. 2992 */ 2993 private String updateDefaultRouteMacAddress(int timeout) { 2994 String address = null; 2995 for (RouteInfo route : mLinkProperties.getRoutes()) { 2996 if (route.isDefaultRoute() && route.hasGateway()) { 2997 InetAddress gateway = route.getGateway(); 2998 if (gateway instanceof Inet4Address) { 2999 if (mVerboseLoggingEnabled) { 3000 logd("updateDefaultRouteMacAddress found Ipv4 default :" 3001 + gateway.getHostAddress()); 3002 } 3003 address = macAddressFromRoute(gateway.getHostAddress()); 3004 /* The gateway's MAC address is known */ 3005 if ((address == null) && (timeout > 0)) { 3006 boolean reachable = false; 3007 TrafficStats.setThreadStatsTag(TrafficStats.TAG_SYSTEM_PROBE); 3008 try { 3009 reachable = gateway.isReachable(timeout); 3010 } catch (Exception e) { 3011 loge("updateDefaultRouteMacAddress exception reaching :" 3012 + gateway.getHostAddress()); 3013 3014 } finally { 3015 TrafficStats.clearThreadStatsTag(); 3016 if (reachable == true) { 3017 3018 address = macAddressFromRoute(gateway.getHostAddress()); 3019 if (mVerboseLoggingEnabled) { 3020 logd("updateDefaultRouteMacAddress reachable (tried again) :" 3021 + gateway.getHostAddress() + " found " + address); 3022 } 3023 } 3024 } 3025 } 3026 if (address != null) { 3027 mWifiConfigManager.setNetworkDefaultGwMacAddress(mLastNetworkId, address); 3028 } 3029 } 3030 } 3031 } 3032 return address; 3033 } 3034 3035 private void sendRssiChangeBroadcast(final int newRssi) { 3036 try { 3037 mBatteryStats.noteWifiRssiChanged(newRssi); 3038 } catch (RemoteException e) { 3039 // Won't happen. 3040 } 3041 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 3042 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3043 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 3044 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3045 } 3046 3047 private void sendNetworkStateChangeBroadcast(String bssid) { 3048 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 3049 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3050 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 3051 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3052 if (bssid != null) 3053 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 3054 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 3055 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 3056 // We no longer report MAC address to third-parties and our code does 3057 // not rely on this broadcast, so just send the default MAC address. 3058 fetchRssiLinkSpeedAndFrequencyNative(); 3059 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 3060 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3061 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 3062 } 3063 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3064 } 3065 3066 private WifiInfo getWiFiInfoForUid(int uid) { 3067 if (Binder.getCallingUid() == Process.myUid()) { 3068 return mWifiInfo; 3069 } 3070 3071 WifiInfo result = new WifiInfo(mWifiInfo); 3072 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3073 3074 IBinder binder = mFacade.getService("package"); 3075 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 3076 3077 try { 3078 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 3079 uid) == PackageManager.PERMISSION_GRANTED) { 3080 result.setMacAddress(mWifiInfo.getMacAddress()); 3081 } 3082 } catch (RemoteException e) { 3083 Log.e(TAG, "Error checking receiver permission", e); 3084 } 3085 3086 return result; 3087 } 3088 3089 private void sendLinkConfigurationChangedBroadcast() { 3090 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 3091 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3092 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3093 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3094 } 3095 3096 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 3097 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 3098 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3099 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 3100 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3101 } 3102 3103 /** 3104 * Record the detailed state of a network. 3105 * 3106 * @param state the new {@code DetailedState} 3107 */ 3108 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 3109 boolean hidden = false; 3110 3111 if (isLinkDebouncing() || isRoaming()) { 3112 // There is generally a confusion in the system about colluding 3113 // WiFi Layer 2 state (as reported by supplicant) and the Network state 3114 // which leads to multiple confusion. 3115 // 3116 // If link is de-bouncing or roaming, we already have an IP address 3117 // as well we were connected and are doing L2 cycles of 3118 // reconnecting or renewing IP address to check that we still have it 3119 // This L2 link flapping should ne be reflected into the Network state 3120 // which is the state of the WiFi Network visible to Layer 3 and applications 3121 // Note that once debouncing and roaming are completed, we will 3122 // set the Network state to where it should be, or leave it as unchanged 3123 // 3124 hidden = true; 3125 } 3126 if (mVerboseLoggingEnabled) { 3127 log("setDetailed state, old =" 3128 + mNetworkInfo.getDetailedState() + " and new state=" + state 3129 + " hidden=" + hidden); 3130 } 3131 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 3132 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 3133 // Always indicate that SSID has changed 3134 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 3135 if (mVerboseLoggingEnabled) { 3136 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 3137 } 3138 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 3139 sendNetworkStateChangeBroadcast(null); 3140 } 3141 } 3142 if (hidden == true) { 3143 return false; 3144 } 3145 3146 if (state != mNetworkInfo.getDetailedState()) { 3147 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 3148 if (mNetworkAgent != null) { 3149 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3150 } 3151 sendNetworkStateChangeBroadcast(null); 3152 return true; 3153 } 3154 return false; 3155 } 3156 3157 private DetailedState getNetworkDetailedState() { 3158 return mNetworkInfo.getDetailedState(); 3159 } 3160 3161 private SupplicantState handleSupplicantStateChange(Message message) { 3162 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 3163 SupplicantState state = stateChangeResult.state; 3164 // Supplicant state change 3165 // [31-13] Reserved for future use 3166 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 3167 // 50023 supplicant_state_changed (custom|1|5) 3168 mWifiInfo.setSupplicantState(state); 3169 // If we receive a supplicant state change with an empty SSID, 3170 // this implies that wpa_supplicant is already disconnected. 3171 // We should pretend we are still connected when linkDebouncing is on. 3172 if ((stateChangeResult.wifiSsid == null 3173 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) { 3174 return state; 3175 } 3176 // Network id is only valid when we start connecting 3177 if (SupplicantState.isConnecting(state)) { 3178 mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId)); 3179 } else { 3180 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 3181 } 3182 3183 mWifiInfo.setBSSID(stateChangeResult.BSSID); 3184 3185 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 3186 WifiConfiguration config = getCurrentWifiConfiguration(); 3187 if (config != null) { 3188 mWifiInfo.setEphemeral(config.ephemeral); 3189 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3190 mWifiInfo.setMeteredHint(config.meteredHint); 3191 } 3192 } 3193 3194 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 3195 3196 return state; 3197 } 3198 3199 /** 3200 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 3201 * using the interface, stopping DHCP & disabling interface 3202 */ 3203 private void handleNetworkDisconnect() { 3204 if (mVerboseLoggingEnabled) { 3205 log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 3206 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3207 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3208 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3209 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3210 } 3211 3212 stopRssiMonitoringOffload(); 3213 3214 clearTargetBssid("handleNetworkDisconnect"); 3215 3216 stopIpManager(); 3217 3218 /* Reset data structures */ 3219 mWifiScoreReport.reset(); 3220 mWifiInfo.reset(); 3221 mIsLinkDebouncing = false; 3222 /* Reset roaming parameters */ 3223 mAutoRoaming = false; 3224 3225 setNetworkDetailedState(DetailedState.DISCONNECTED); 3226 if (mNetworkAgent != null) { 3227 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3228 mNetworkAgent = null; 3229 } 3230 3231 /* Clear network properties */ 3232 clearLinkProperties(); 3233 3234 /* Cend event to CM & network change broadcast */ 3235 sendNetworkStateChangeBroadcast(mLastBssid); 3236 3237 mLastBssid = null; 3238 registerDisconnected(); 3239 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 3240 } 3241 3242 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 3243 /* Socket connection can be lost when we do a graceful shutdown 3244 * or when the driver is hung. Ensure supplicant is stopped here. 3245 */ 3246 if (killSupplicant) { 3247 mWifiMonitor.stopAllMonitoring(); 3248 try { 3249 if (!mClientInterface.disableSupplicant()) { 3250 loge("Failed to disable supplicant after connection loss"); 3251 } 3252 } catch (RemoteException e) { 3253 // Remote interface has died, there is no cleanup we can do. 3254 } 3255 } 3256 mWifiNative.closeSupplicantConnection(); 3257 sendSupplicantConnectionChangedBroadcast(false); 3258 setWifiState(WIFI_STATE_DISABLED); 3259 } 3260 3261 void handlePreDhcpSetup() { 3262 if (!mBluetoothConnectionActive) { 3263 /* 3264 * There are problems setting the Wi-Fi driver's power 3265 * mode to active when bluetooth coexistence mode is 3266 * enabled or sense. 3267 * <p> 3268 * We set Wi-Fi to active mode when 3269 * obtaining an IP address because we've found 3270 * compatibility issues with some routers with low power 3271 * mode. 3272 * <p> 3273 * In order for this active power mode to properly be set, 3274 * we disable coexistence mode until we're done with 3275 * obtaining an IP address. One exception is if we 3276 * are currently connected to a headset, since disabling 3277 * coexistence would interrupt that connection. 3278 */ 3279 // Disable the coexistence mode 3280 mWifiNative.setBluetoothCoexistenceMode( 3281 WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 3282 } 3283 3284 // Disable power save and suspend optimizations during DHCP 3285 // Note: The order here is important for now. Brcm driver changes 3286 // power settings when we control suspend mode optimizations. 3287 // TODO: Remove this comment when the driver is fixed. 3288 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 3289 mWifiNative.setPowerSave(false); 3290 3291 // Update link layer stats 3292 getWifiLinkLayerStats(); 3293 3294 if (mWifiP2pChannel != null) { 3295 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 3296 Message msg = new Message(); 3297 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 3298 msg.arg1 = WifiP2pServiceImpl.ENABLED; 3299 msg.arg2 = DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE; 3300 msg.obj = WifiStateMachine.this; 3301 mWifiP2pChannel.sendMessage(msg); 3302 } else { 3303 // If the p2p service is not running, we can proceed directly. 3304 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE); 3305 } 3306 } 3307 3308 void handlePostDhcpSetup() { 3309 /* Restore power save and suspend optimizations */ 3310 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 3311 mWifiNative.setPowerSave(true); 3312 3313 p2pSendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, WifiP2pServiceImpl.DISABLED); 3314 3315 // Set the coexistence mode back to its default value 3316 mWifiNative.setBluetoothCoexistenceMode( 3317 WifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 3318 } 3319 3320 /** 3321 * Inform other components that a new connection attempt is starting. 3322 */ 3323 private void reportConnectionAttemptStart( 3324 WifiConfiguration config, String targetBSSID, int roamType) { 3325 mWifiMetrics.startConnectionEvent(config, targetBSSID, roamType); 3326 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_STARTED); 3327 } 3328 3329 /** 3330 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3331 * has concluded. 3332 */ 3333 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3334 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3335 switch (level2FailureCode) { 3336 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3337 // Ideally, we'd wait until IP reachability has been confirmed. this code falls 3338 // short in two ways: 3339 // - at the time of the CMD_IP_CONFIGURATION_SUCCESSFUL event, we don't know if we 3340 // actually have ARP reachability. it might be better to wait until the wifi 3341 // network has been validated by IpManager. 3342 // - in the case of a roaming event (intra-SSID), we probably trigger when L2 is 3343 // complete. 3344 // 3345 // TODO(b/34181219): Fix the above. 3346 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_SUCCEEDED); 3347 break; 3348 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3349 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3350 // WifiDiagnostics doesn't care about pre-empted connections, or cases 3351 // where we failed to initiate a connection attempt with supplicant. 3352 break; 3353 default: 3354 mWifiDiagnostics.reportConnectionEvent(WifiDiagnostics.CONNECTION_EVENT_FAILED); 3355 } 3356 } 3357 3358 private void handleIPv4Success(DhcpResults dhcpResults) { 3359 if (mVerboseLoggingEnabled) { 3360 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3361 logd("link address " + dhcpResults.ipAddress); 3362 } 3363 3364 Inet4Address addr; 3365 synchronized (mDhcpResultsLock) { 3366 mDhcpResults = dhcpResults; 3367 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3368 } 3369 3370 if (isRoaming()) { 3371 int previousAddress = mWifiInfo.getIpAddress(); 3372 int newAddress = NetworkUtils.inetAddressToInt(addr); 3373 if (previousAddress != newAddress) { 3374 logd("handleIPv4Success, roaming and address changed" + 3375 mWifiInfo + " got: " + addr); 3376 } 3377 } 3378 mWifiInfo.setInetAddress(addr); 3379 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3380 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3381 updateCapabilities(getCurrentWifiConfiguration()); 3382 } 3383 } 3384 3385 private void handleSuccessfulIpConfiguration() { 3386 mLastSignalLevel = -1; // Force update of signal strength 3387 WifiConfiguration c = getCurrentWifiConfiguration(); 3388 if (c != null) { 3389 // Reset IP failure tracking 3390 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3391 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3392 3393 // Tell the framework whether the newly connected network is trusted or untrusted. 3394 updateCapabilities(c); 3395 } 3396 if (c != null) { 3397 ScanResult result = getCurrentScanResult(); 3398 if (result == null) { 3399 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3400 c.configKey()); 3401 } else { 3402 // Clear the per BSSID failure count 3403 result.numIpConfigFailures = 0; 3404 } 3405 } 3406 } 3407 3408 private void handleIPv4Failure() { 3409 // TODO: Move this to provisioning failure, not DHCP failure. 3410 // DHCPv4 failure is expected on an IPv6-only network. 3411 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3412 if (mVerboseLoggingEnabled) { 3413 int count = -1; 3414 WifiConfiguration config = getCurrentWifiConfiguration(); 3415 if (config != null) { 3416 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3417 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3418 } 3419 log("DHCP failure count=" + count); 3420 } 3421 reportConnectionAttemptEnd( 3422 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3423 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3424 synchronized(mDhcpResultsLock) { 3425 if (mDhcpResults != null) { 3426 mDhcpResults.clear(); 3427 } 3428 } 3429 if (mVerboseLoggingEnabled) { 3430 logd("handleIPv4Failure"); 3431 } 3432 } 3433 3434 private void handleIpConfigurationLost() { 3435 mWifiInfo.setInetAddress(null); 3436 mWifiInfo.setMeteredHint(false); 3437 3438 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3439 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3440 3441 /* DHCP times out after about 30 seconds, we do a 3442 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3443 */ 3444 mWifiNative.disconnect(); 3445 } 3446 3447 // TODO: De-duplicated this and handleIpConfigurationLost(). 3448 private void handleIpReachabilityLost() { 3449 mWifiInfo.setInetAddress(null); 3450 mWifiInfo.setMeteredHint(false); 3451 3452 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3453 3454 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3455 mWifiNative.disconnect(); 3456 } 3457 3458 private static IClientInterface setupDriverForClientMode(IWificond wificond) { 3459 if (wificond == null) { 3460 Log.e(TAG, "Failed to get reference to wificond"); 3461 return null; 3462 } 3463 3464 IClientInterface clientInterface = null; 3465 try { 3466 clientInterface = wificond.createClientInterface(); 3467 } catch (RemoteException e1) { } 3468 3469 if (clientInterface == null) { 3470 Log.e(TAG, "Could not get IClientInterface instance from wificond"); 3471 return null; 3472 } else { 3473 Binder.allowBlocking(clientInterface.asBinder()); 3474 } 3475 3476 return clientInterface; 3477 } 3478 3479 private IApInterface setupDriverForSoftAp() { 3480 if (mWificond == null) { 3481 Log.e(TAG, "Failed to get reference to wificond"); 3482 return null; 3483 } 3484 3485 IApInterface apInterface = null; 3486 try { 3487 apInterface = mWificond.createApInterface(); 3488 } catch (RemoteException e1) { } 3489 3490 if (apInterface == null) { 3491 Log.e(TAG, "Could not get IApInterface instance from wificond"); 3492 return null; 3493 } else { 3494 Binder.allowBlocking(apInterface.asBinder()); 3495 } 3496 3497 if (!mWifiNative.startHal()) { 3498 // starting HAL is optional 3499 Log.e(TAG, "Failed to start HAL for AP mode"); 3500 } 3501 return apInterface; 3502 } 3503 3504 private byte[] macAddressFromString(String macString) { 3505 String[] macBytes = macString.split(":"); 3506 if (macBytes.length != 6) { 3507 throw new IllegalArgumentException("MAC address should be 6 bytes long!"); 3508 } 3509 byte[] mac = new byte[6]; 3510 for (int i = 0; i < macBytes.length; i++) { 3511 Integer hexVal = Integer.parseInt(macBytes[i], 16); 3512 mac[i] = hexVal.byteValue(); 3513 } 3514 return mac; 3515 } 3516 3517 /* 3518 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3519 * so as to record MAC address of default gateway. 3520 **/ 3521 private String macAddressFromRoute(String ipAddress) { 3522 String macAddress = null; 3523 BufferedReader reader = null; 3524 try { 3525 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3526 3527 // Skip over the line bearing colum titles 3528 String line = reader.readLine(); 3529 3530 while ((line = reader.readLine()) != null) { 3531 String[] tokens = line.split("[ ]+"); 3532 if (tokens.length < 6) { 3533 continue; 3534 } 3535 3536 // ARP column format is 3537 // Address HWType HWAddress Flags Mask IFace 3538 String ip = tokens[0]; 3539 String mac = tokens[3]; 3540 3541 if (ipAddress.equals(ip)) { 3542 macAddress = mac; 3543 break; 3544 } 3545 } 3546 3547 if (macAddress == null) { 3548 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3549 "/proc/net/arp"); 3550 } 3551 3552 } catch (FileNotFoundException e) { 3553 loge("Could not open /proc/net/arp to lookup mac address"); 3554 } catch (IOException e) { 3555 loge("Could not read /proc/net/arp to lookup mac address"); 3556 } finally { 3557 try { 3558 if (reader != null) { 3559 reader.close(); 3560 } 3561 } catch (IOException e) { 3562 // Do nothing 3563 } 3564 } 3565 return macAddress; 3566 3567 } 3568 3569 private class WifiNetworkFactory extends NetworkFactory { 3570 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 3571 super(l, c, TAG, f); 3572 } 3573 3574 @Override 3575 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3576 synchronized (mWifiReqCountLock) { 3577 if (++mConnectionReqCount == 1) { 3578 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3579 mWifiConnectivityManager.enable(true); 3580 } 3581 } 3582 } 3583 } 3584 3585 @Override 3586 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3587 synchronized (mWifiReqCountLock) { 3588 if (--mConnectionReqCount == 0) { 3589 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3590 mWifiConnectivityManager.enable(false); 3591 } 3592 } 3593 } 3594 } 3595 3596 @Override 3597 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3598 pw.println("mConnectionReqCount " + mConnectionReqCount); 3599 } 3600 3601 } 3602 3603 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3604 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3605 super(l, c, tag, f); 3606 } 3607 3608 @Override 3609 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3610 if (!networkRequest.networkCapabilities.hasCapability( 3611 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3612 synchronized (mWifiReqCountLock) { 3613 if (++mUntrustedReqCount == 1) { 3614 if (mWifiConnectivityManager != null) { 3615 if (mConnectionReqCount == 0) { 3616 mWifiConnectivityManager.enable(true); 3617 } 3618 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3619 } 3620 } 3621 } 3622 } 3623 } 3624 3625 @Override 3626 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3627 if (!networkRequest.networkCapabilities.hasCapability( 3628 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3629 synchronized (mWifiReqCountLock) { 3630 if (--mUntrustedReqCount == 0) { 3631 if (mWifiConnectivityManager != null) { 3632 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3633 if (mConnectionReqCount == 0) { 3634 mWifiConnectivityManager.enable(false); 3635 } 3636 } 3637 } 3638 } 3639 } 3640 } 3641 3642 @Override 3643 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3644 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3645 } 3646 } 3647 3648 void maybeRegisterNetworkFactory() { 3649 if (mNetworkFactory == null) { 3650 checkAndSetConnectivityInstance(); 3651 if (mCm != null) { 3652 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3653 NETWORKTYPE, mNetworkCapabilitiesFilter); 3654 mNetworkFactory.setScoreFilter(60); 3655 mNetworkFactory.register(); 3656 3657 // We can't filter untrusted network in the capabilities filter because a trusted 3658 // network would still satisfy a request that accepts untrusted ones. 3659 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3660 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3661 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3662 mUntrustedNetworkFactory.register(); 3663 } 3664 } 3665 } 3666 3667 /** 3668 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3669 * method allows WifiStateMachine to get these additional system services. 3670 * 3671 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3672 */ 3673 private void getAdditionalWifiServiceInterfaces() { 3674 // First set up Wifi Direct 3675 if (mP2pSupported) { 3676 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3677 WifiP2pServiceImpl wifiP2pServiceImpl = 3678 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3679 3680 if (wifiP2pServiceImpl != null) { 3681 mWifiP2pChannel = new AsyncChannel(); 3682 mWifiP2pChannel.connect(mContext, getHandler(), 3683 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3684 } 3685 } 3686 } 3687 3688 /******************************************************** 3689 * HSM states 3690 *******************************************************/ 3691 3692 class DefaultState extends State { 3693 3694 @Override 3695 public boolean processMessage(Message message) { 3696 logStateAndMessage(message, this); 3697 3698 switch (message.what) { 3699 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3700 AsyncChannel ac = (AsyncChannel) message.obj; 3701 if (ac == mWifiP2pChannel) { 3702 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3703 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3704 } else { 3705 loge("WifiP2pService connection failure, error=" + message.arg1); 3706 } 3707 } else { 3708 loge("got HALF_CONNECTED for unknown channel"); 3709 } 3710 break; 3711 } 3712 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3713 AsyncChannel ac = (AsyncChannel) message.obj; 3714 if (ac == mWifiP2pChannel) { 3715 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3716 //TODO: Re-establish connection to state machine after a delay 3717 // mWifiP2pChannel.connect(mContext, getHandler(), 3718 // mWifiP2pManager.getMessenger()); 3719 } 3720 break; 3721 } 3722 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3723 mBluetoothConnectionActive = (message.arg1 != 3724 BluetoothAdapter.STATE_DISCONNECTED); 3725 break; 3726 /* Synchronous call returns */ 3727 case CMD_PING_SUPPLICANT: 3728 case CMD_ENABLE_NETWORK: 3729 case CMD_ADD_OR_UPDATE_NETWORK: 3730 case CMD_REMOVE_NETWORK: 3731 case CMD_SAVE_CONFIG: 3732 replyToMessage(message, message.what, FAILURE); 3733 break; 3734 case CMD_GET_CONFIGURED_NETWORKS: 3735 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3736 break; 3737 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3738 replyToMessage(message, message.what, (List<WifiConfiguration>) null); 3739 break; 3740 case CMD_ENABLE_RSSI_POLL: 3741 mEnableRssiPolling = (message.arg1 == 1); 3742 break; 3743 case CMD_SET_HIGH_PERF_MODE: 3744 if (message.arg1 == 1) { 3745 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3746 } else { 3747 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3748 } 3749 break; 3750 case CMD_BOOT_COMPLETED: 3751 // get other services that we need to manage 3752 getAdditionalWifiServiceInterfaces(); 3753 if (!mWifiConfigManager.loadFromStore()) { 3754 Log.e(TAG, "Failed to load from config store"); 3755 } 3756 maybeRegisterNetworkFactory(); 3757 break; 3758 case CMD_SCREEN_STATE_CHANGED: 3759 handleScreenStateChanged(message.arg1 != 0); 3760 break; 3761 /* Discard */ 3762 case CMD_START_SCAN: 3763 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3764 break; 3765 case CMD_START_SUPPLICANT: 3766 case CMD_STOP_SUPPLICANT: 3767 case CMD_STOP_SUPPLICANT_FAILED: 3768 case CMD_DRIVER_START_TIMED_OUT: 3769 case CMD_START_AP: 3770 case CMD_START_AP_FAILURE: 3771 case CMD_STOP_AP: 3772 case CMD_AP_STOPPED: 3773 case CMD_DISCONNECT: 3774 case CMD_RECONNECT: 3775 case CMD_REASSOCIATE: 3776 case CMD_RELOAD_TLS_AND_RECONNECT: 3777 case WifiMonitor.SUP_CONNECTION_EVENT: 3778 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3779 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3780 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3781 case WifiMonitor.SCAN_RESULTS_EVENT: 3782 case WifiMonitor.SCAN_FAILED_EVENT: 3783 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3784 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3785 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3786 case WifiMonitor.WPS_OVERLAP_EVENT: 3787 case CMD_SET_OPERATIONAL_MODE: 3788 case CMD_RSSI_POLL: 3789 case DhcpClient.CMD_PRE_DHCP_ACTION: 3790 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3791 case DhcpClient.CMD_POST_DHCP_ACTION: 3792 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3793 case CMD_DISABLE_P2P_RSP: 3794 case WifiMonitor.SUP_REQUEST_IDENTITY: 3795 case CMD_TEST_NETWORK_DISCONNECT: 3796 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3797 case CMD_TARGET_BSSID: 3798 case CMD_START_CONNECT: 3799 case CMD_START_ROAM: 3800 case CMD_ASSOCIATED_BSSID: 3801 case CMD_UNWANTED_NETWORK: 3802 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3803 case CMD_ROAM_WATCHDOG_TIMER: 3804 case CMD_DISABLE_EPHEMERAL_NETWORK: 3805 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3806 break; 3807 case CMD_SET_SUSPEND_OPT_ENABLED: 3808 if (message.arg1 == 1) { 3809 if (message.arg2 == 1) { 3810 mSuspendWakeLock.release(); 3811 } 3812 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3813 } else { 3814 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3815 } 3816 break; 3817 case WifiMonitor.DRIVER_HUNG_EVENT: 3818 setSupplicantRunning(false); 3819 setSupplicantRunning(true); 3820 break; 3821 case WifiManager.CONNECT_NETWORK: 3822 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3823 WifiManager.BUSY); 3824 break; 3825 case WifiManager.FORGET_NETWORK: 3826 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 3827 WifiManager.BUSY); 3828 break; 3829 case WifiManager.SAVE_NETWORK: 3830 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3831 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3832 WifiManager.BUSY); 3833 break; 3834 case WifiManager.START_WPS: 3835 replyToMessage(message, WifiManager.WPS_FAILED, 3836 WifiManager.BUSY); 3837 break; 3838 case WifiManager.CANCEL_WPS: 3839 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3840 WifiManager.BUSY); 3841 break; 3842 case WifiManager.DISABLE_NETWORK: 3843 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3844 WifiManager.BUSY); 3845 break; 3846 case WifiManager.RSSI_PKTCNT_FETCH: 3847 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3848 WifiManager.BUSY); 3849 break; 3850 case CMD_GET_SUPPORTED_FEATURES: 3851 int featureSet = mWifiNative.getSupportedFeatureSet(); 3852 replyToMessage(message, message.what, featureSet); 3853 break; 3854 case CMD_FIRMWARE_ALERT: 3855 if (mWifiDiagnostics != null) { 3856 byte[] buffer = (byte[])message.obj; 3857 int alertReason = message.arg1; 3858 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3859 mWifiMetrics.incrementAlertReasonCount(alertReason); 3860 } 3861 break; 3862 case CMD_GET_LINK_LAYER_STATS: 3863 // Not supported hence reply with error message 3864 replyToMessage(message, message.what, null); 3865 break; 3866 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3867 NetworkInfo info = (NetworkInfo) message.obj; 3868 mP2pConnected.set(info.isConnected()); 3869 break; 3870 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3871 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3872 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3873 break; 3874 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3875 case CMD_UPDATE_LINKPROPERTIES: 3876 updateLinkProperties((LinkProperties) message.obj); 3877 break; 3878 case CMD_GET_MATCHING_CONFIG: 3879 replyToMessage(message, message.what); 3880 break; 3881 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3882 case CMD_IP_CONFIGURATION_LOST: 3883 case CMD_IP_REACHABILITY_LOST: 3884 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3885 break; 3886 case CMD_GET_CONNECTION_STATISTICS: 3887 replyToMessage(message, message.what, mWifiConnectionStatistics); 3888 break; 3889 case CMD_REMOVE_APP_CONFIGURATIONS: 3890 deferMessage(message); 3891 break; 3892 case CMD_REMOVE_USER_CONFIGURATIONS: 3893 deferMessage(message); 3894 break; 3895 case CMD_START_IP_PACKET_OFFLOAD: 3896 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3897 message.arg1, 3898 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3899 break; 3900 case CMD_STOP_IP_PACKET_OFFLOAD: 3901 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3902 message.arg1, 3903 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3904 break; 3905 case CMD_START_RSSI_MONITORING_OFFLOAD: 3906 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3907 break; 3908 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3909 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3910 break; 3911 case CMD_USER_SWITCH: 3912 Set<Integer> removedNetworkIds = 3913 mWifiConfigManager.handleUserSwitch(message.arg1); 3914 if (removedNetworkIds.contains(mTargetNetworkId) || 3915 removedNetworkIds.contains(mLastNetworkId)) { 3916 // Disconnect and let autojoin reselect a new network 3917 sendMessage(CMD_DISCONNECT); 3918 } 3919 break; 3920 case CMD_USER_UNLOCK: 3921 mWifiConfigManager.handleUserUnlock(message.arg1); 3922 break; 3923 case CMD_USER_STOP: 3924 mWifiConfigManager.handleUserStop(message.arg1); 3925 break; 3926 case CMD_QUERY_OSU_ICON: 3927 case CMD_MATCH_PROVIDER_NETWORK: 3928 /* reply with arg1 = 0 - it returns API failure to the calling app 3929 * (message.what is not looked at) 3930 */ 3931 replyToMessage(message, message.what); 3932 break; 3933 case CMD_RESET_SIM_NETWORKS: 3934 /* Defer this message until supplicant is started. */ 3935 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3936 deferMessage(message); 3937 break; 3938 case CMD_INSTALL_PACKET_FILTER: 3939 mWifiNative.installPacketFilter((byte[]) message.obj); 3940 break; 3941 case CMD_SET_FALLBACK_PACKET_FILTERING: 3942 if ((boolean) message.obj) { 3943 mWifiNative.startFilteringMulticastV4Packets(); 3944 } else { 3945 mWifiNative.stopFilteringMulticastV4Packets(); 3946 } 3947 break; 3948 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3949 // We have lost contact with a client interface, which means that we cannot 3950 // trust that the driver is up or that the interface is ready. We are fit 3951 // for no WiFi related work. 3952 transitionTo(mInitialState); 3953 break; 3954 default: 3955 loge("Error! unhandled message" + message); 3956 break; 3957 } 3958 return HANDLED; 3959 } 3960 } 3961 3962 class InitialState extends State { 3963 3964 private void cleanup() { 3965 // Tearing down the client interfaces below is going to stop our supplicant. 3966 mWifiMonitor.stopAllMonitoring(); 3967 3968 mDeathRecipient.unlinkToDeath(); 3969 if (mWificond != null) { 3970 try { 3971 mWificond.tearDownInterfaces(); 3972 } catch (RemoteException e) { 3973 // There is very little we can do here 3974 Log.e(TAG, "Failed to tear down interfaces via wificond"); 3975 } 3976 mWificond = null; 3977 } 3978 mWifiNative.stopHal(); 3979 } 3980 3981 @Override 3982 public void enter() { 3983 cleanup(); 3984 } 3985 3986 @Override 3987 public boolean processMessage(Message message) { 3988 logStateAndMessage(message, this); 3989 switch (message.what) { 3990 case CMD_START_SUPPLICANT: 3991 // Refresh our reference to wificond. This allows us to tolerate restarts. 3992 mWificond = mWifiInjector.makeWificond(); 3993 mClientInterface = setupDriverForClientMode(mWificond); 3994 if (mClientInterface == null || 3995 !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3996 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3997 cleanup(); 3998 break; 3999 } 4000 4001 try { 4002 // A runtime crash or shutting down AP mode can leave 4003 // IP addresses configured, and this affects 4004 // connectivity when supplicant starts up. 4005 // Ensure we have no IP addresses before a supplicant start. 4006 mNwService.clearInterfaceAddresses(mInterfaceName); 4007 4008 // Set privacy extensions 4009 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 4010 4011 // IPv6 is enabled only as long as access point is connected since: 4012 // - IPv6 addresses and routes stick around after disconnection 4013 // - kernel is unaware when connected and fails to start IPv6 negotiation 4014 // - kernel can start autoconfiguration when 802.1x is not complete 4015 mNwService.disableIpv6(mInterfaceName); 4016 } catch (RemoteException re) { 4017 loge("Unable to change interface settings: " + re); 4018 } catch (IllegalStateException ie) { 4019 loge("Unable to change interface settings: " + ie); 4020 } 4021 4022 if (!mWifiNative.startHal()) { 4023 // starting HAL is optional 4024 Log.e(TAG, "Failed to start HAL for client mode"); 4025 } 4026 4027 try { 4028 if (!mClientInterface.enableSupplicant()) { 4029 loge("Failed to start supplicant!"); 4030 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 4031 cleanup(); 4032 break; 4033 } 4034 } catch (RemoteException e) { 4035 cleanup(); 4036 break; 4037 } 4038 if (!mWifiNative.initializeSupplicantHal()) { 4039 Log.e(TAG, "Failed to start supplicant Hal"); 4040 } 4041 setSupplicantLogLevel(); 4042 setWifiState(WIFI_STATE_ENABLING); 4043 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 4044 mWifiMonitor.startMonitoring(mInterfaceName); 4045 transitionTo(mSupplicantStartingState); 4046 break; 4047 case CMD_START_AP: 4048 // Refresh our reference to wificond. This allows us to tolerate restarts. 4049 mWificond = mWifiInjector.makeWificond(); 4050 transitionTo(mSoftApState); 4051 break; 4052 case CMD_SET_OPERATIONAL_MODE: 4053 mOperationalMode = message.arg1; 4054 if (mOperationalMode != DISABLED_MODE) { 4055 sendMessage(CMD_START_SUPPLICANT); 4056 } 4057 break; 4058 default: 4059 return NOT_HANDLED; 4060 } 4061 return HANDLED; 4062 } 4063 } 4064 4065 class SupplicantStartingState extends State { 4066 private void initializeWpsDetails() { 4067 String detail; 4068 detail = mPropertyService.get("ro.product.name", ""); 4069 if (!mWifiNative.setDeviceName(detail)) { 4070 loge("Failed to set device name " + detail); 4071 } 4072 detail = mPropertyService.get("ro.product.manufacturer", ""); 4073 if (!mWifiNative.setManufacturer(detail)) { 4074 loge("Failed to set manufacturer " + detail); 4075 } 4076 detail = mPropertyService.get("ro.product.model", ""); 4077 if (!mWifiNative.setModelName(detail)) { 4078 loge("Failed to set model name " + detail); 4079 } 4080 detail = mPropertyService.get("ro.product.model", ""); 4081 if (!mWifiNative.setModelNumber(detail)) { 4082 loge("Failed to set model number " + detail); 4083 } 4084 detail = mPropertyService.get("ro.serialno", ""); 4085 if (!mWifiNative.setSerialNumber(detail)) { 4086 loge("Failed to set serial number " + detail); 4087 } 4088 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4089 loge("Failed to set WPS config methods"); 4090 } 4091 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4092 loge("Failed to set primary device type " + mPrimaryDeviceType); 4093 } 4094 } 4095 4096 @Override 4097 public boolean processMessage(Message message) { 4098 logStateAndMessage(message, this); 4099 4100 switch(message.what) { 4101 case WifiMonitor.SUP_CONNECTION_EVENT: 4102 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4103 4104 mSupplicantRestartCount = 0; 4105 /* Reset the supplicant state to indicate the supplicant 4106 * state is not known at this time */ 4107 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4108 /* Initialize data structures */ 4109 mLastBssid = null; 4110 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4111 mLastSignalLevel = -1; 4112 4113 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4114 // Attempt to migrate data out of legacy store. 4115 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4116 Log.e(TAG, "Failed to migrate from legacy config store"); 4117 } 4118 initializeWpsDetails(); 4119 sendSupplicantConnectionChangedBroadcast(true); 4120 transitionTo(mSupplicantStartedState); 4121 break; 4122 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4123 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4124 loge("Failed to setup control channel, restart supplicant"); 4125 mWifiMonitor.stopAllMonitoring(); 4126 try { 4127 mClientInterface.disableSupplicant(); 4128 } catch (RemoteException e) { 4129 // The client interface is dead, there is nothing more we can do. 4130 } 4131 transitionTo(mInitialState); 4132 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4133 } else { 4134 loge("Failed " + mSupplicantRestartCount + 4135 " times to start supplicant, unload driver"); 4136 mSupplicantRestartCount = 0; 4137 setWifiState(WIFI_STATE_UNKNOWN); 4138 transitionTo(mInitialState); 4139 } 4140 break; 4141 case CMD_START_SUPPLICANT: 4142 case CMD_STOP_SUPPLICANT: 4143 case CMD_START_AP: 4144 case CMD_STOP_AP: 4145 case CMD_SET_OPERATIONAL_MODE: 4146 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4147 deferMessage(message); 4148 break; 4149 default: 4150 return NOT_HANDLED; 4151 } 4152 return HANDLED; 4153 } 4154 } 4155 4156 class SupplicantStartedState extends State { 4157 @Override 4158 public void enter() { 4159 if (mVerboseLoggingEnabled) { 4160 logd("SupplicantStartedState enter"); 4161 } 4162 4163 int defaultInterval = mContext.getResources().getInteger( 4164 R.integer.config_wifi_supplicant_scan_interval); 4165 4166 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 4167 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 4168 defaultInterval); 4169 4170 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 4171 mWifiNative.setExternalSim(true); 4172 4173 /* turn on use of DFS channels */ 4174 mWifiNative.setDfsFlag(true); 4175 4176 setRandomMacOui(); 4177 mWifiNative.enableAutoConnect(false); 4178 mCountryCode.setReadyForChange(true); 4179 4180 // We can't do this in the constructor because WifiStateMachine is created before the 4181 // wifi scanning service is initialized 4182 if (mWifiScanner == null) { 4183 mWifiScanner = mWifiInjector.getWifiScanner(); 4184 4185 synchronized (mWifiReqCountLock) { 4186 mWifiConnectivityManager = 4187 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4188 hasConnectionRequests()); 4189 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4190 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4191 } 4192 } 4193 4194 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4195 mIsRunning = true; 4196 updateBatteryWorkSource(null); 4197 /** 4198 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4199 * When this mode is on, some of the low-level scan parameters used by the 4200 * driver are changed to reduce interference with bluetooth 4201 */ 4202 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4203 // initialize network state 4204 setNetworkDetailedState(DetailedState.DISCONNECTED); 4205 4206 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4207 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4208 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4209 // IpManager.Callback.setFallbackMulticastFilter() 4210 mWifiNative.stopFilteringMulticastV4Packets(); 4211 mWifiNative.stopFilteringMulticastV6Packets(); 4212 4213 if (mOperationalMode == SCAN_ONLY_MODE || 4214 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4215 mWifiNative.disconnect(); 4216 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4217 setWifiState(WIFI_STATE_DISABLED); 4218 } 4219 transitionTo(mScanModeState); 4220 } else if (mOperationalMode == CONNECT_MODE){ 4221 4222 // Status pulls in the current supplicant state and network connection state 4223 // events over the monitor connection. This helps framework sync up with 4224 // current supplicant state 4225 // TODO: actually check the supplicant status string and make sure the supplicant 4226 // is in disconnecte4d state. 4227 mWifiNative.status(); 4228 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4229 transitionTo(mDisconnectedState); 4230 } else if (mOperationalMode == DISABLED_MODE) { 4231 transitionTo(mSupplicantStoppingState); 4232 } 4233 4234 // Set the right suspend mode settings 4235 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4236 && mUserWantsSuspendOpt.get()); 4237 4238 mWifiNative.setPowerSave(true); 4239 4240 if (mP2pSupported) { 4241 if (mOperationalMode == CONNECT_MODE) { 4242 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4243 } else { 4244 // P2P state machine starts in disabled state, and is not enabled until 4245 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4246 // keep it disabled. 4247 } 4248 } 4249 4250 if (mAwareSupported) { 4251 if (mWifiAwareManager == null) { 4252 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4253 } 4254 if (mWifiAwareManager == null) { 4255 Log.e(TAG, "Can't get WifiAwareManager to enable usage!"); 4256 } else { 4257 if (mOperationalMode == CONNECT_MODE) { 4258 mWifiAwareManager.enableUsage(); 4259 } else { 4260 /* 4261 * Aware state machine starts in disabled state. Nothing 4262 * needed to keep it disabled. 4263 */ 4264 } 4265 } 4266 } 4267 4268 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4269 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4270 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4271 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4272 4273 // Enable link layer stats gathering 4274 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4275 } 4276 4277 @Override 4278 public boolean processMessage(Message message) { 4279 logStateAndMessage(message, this); 4280 4281 switch(message.what) { 4282 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4283 if (mP2pSupported) { 4284 transitionTo(mWaitForP2pDisableState); 4285 } else { 4286 transitionTo(mSupplicantStoppingState); 4287 } 4288 break; 4289 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4290 loge("Connection lost, restart supplicant"); 4291 handleSupplicantConnectionLoss(true); 4292 handleNetworkDisconnect(); 4293 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4294 if (mP2pSupported) { 4295 transitionTo(mWaitForP2pDisableState); 4296 } else { 4297 transitionTo(mInitialState); 4298 } 4299 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4300 break; 4301 case CMD_START_SCAN: 4302 // TODO: remove scan request path (b/31445200) 4303 handleScanRequest(message); 4304 break; 4305 case WifiMonitor.SCAN_RESULTS_EVENT: 4306 case WifiMonitor.SCAN_FAILED_EVENT: 4307 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4308 // results are retrieved from WifiScanner (b/31444878) 4309 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4310 setScanResults(); 4311 mIsScanOngoing = false; 4312 mIsFullScanOngoing = false; 4313 if (mBufferedScanMsg.size() > 0) 4314 sendMessage(mBufferedScanMsg.remove()); 4315 break; 4316 case CMD_PING_SUPPLICANT: 4317 boolean ok = mWifiNative.ping(); 4318 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4319 break; 4320 case CMD_START_AP: 4321 /* Cannot start soft AP while in client mode */ 4322 loge("Failed to start soft AP with a running supplicant"); 4323 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4324 break; 4325 case CMD_SET_OPERATIONAL_MODE: 4326 mOperationalMode = message.arg1; 4327 if (mOperationalMode == DISABLED_MODE) { 4328 transitionTo(mSupplicantStoppingState); 4329 } 4330 break; 4331 case CMD_TARGET_BSSID: 4332 // Trying to associate to this BSSID 4333 if (message.obj != null) { 4334 mTargetRoamBSSID = (String) message.obj; 4335 } 4336 break; 4337 case CMD_GET_LINK_LAYER_STATS: 4338 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4339 replyToMessage(message, message.what, stats); 4340 break; 4341 case CMD_RESET_SIM_NETWORKS: 4342 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4343 mWifiConfigManager.resetSimNetworks(); 4344 break; 4345 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4346 mBluetoothConnectionActive = (message.arg1 != 4347 BluetoothAdapter.STATE_DISCONNECTED); 4348 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4349 break; 4350 case CMD_SET_SUSPEND_OPT_ENABLED: 4351 if (message.arg1 == 1) { 4352 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4353 if (message.arg2 == 1) { 4354 mSuspendWakeLock.release(); 4355 } 4356 } else { 4357 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4358 } 4359 break; 4360 case CMD_SET_HIGH_PERF_MODE: 4361 if (message.arg1 == 1) { 4362 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4363 } else { 4364 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4365 } 4366 break; 4367 case CMD_ENABLE_TDLS: 4368 if (message.obj != null) { 4369 String remoteAddress = (String) message.obj; 4370 boolean enable = (message.arg1 == 1); 4371 mWifiNative.startTdls(remoteAddress, enable); 4372 } 4373 break; 4374 case WifiMonitor.ANQP_DONE_EVENT: 4375 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4376 mPasspointManager.notifyANQPDone((long) message.obj, message.arg1 != 0); 4377 break; 4378 case CMD_STOP_IP_PACKET_OFFLOAD: { 4379 int slot = message.arg1; 4380 int ret = stopWifiIPPacketOffload(slot); 4381 if (mNetworkAgent != null) { 4382 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4383 } 4384 break; 4385 } 4386 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4387 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4388 IconEvent event = (IconEvent) message.obj; 4389 mPasspointManager.notifyIconDone(event.getBSSID(), event); 4390 break; 4391 case WifiMonitor.HS20_REMEDIATION_EVENT: 4392 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4393 // monitoring. 4394 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4395 break; 4396 case CMD_CONFIG_ND_OFFLOAD: 4397 final boolean enabled = (message.arg1 > 0); 4398 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4399 break; 4400 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4401 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4402 break; 4403 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4404 final boolean allowed = (message.arg1 > 0); 4405 boolean old_state = mEnableAutoJoinWhenAssociated; 4406 mEnableAutoJoinWhenAssociated = allowed; 4407 if (!old_state && allowed && mScreenOn 4408 && getCurrentState() == mConnectedState) { 4409 mWifiConnectivityManager.forceConnectivityScan(); 4410 } 4411 break; 4412 default: 4413 return NOT_HANDLED; 4414 } 4415 return HANDLED; 4416 } 4417 4418 @Override 4419 public void exit() { 4420 mWifiDiagnostics.stopLogging(); 4421 4422 mIsRunning = false; 4423 updateBatteryWorkSource(null); 4424 mScanResults = new ArrayList<>(); 4425 4426 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4427 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4428 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4429 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4430 mBufferedScanMsg.clear(); 4431 4432 if (mAwareSupported) { 4433 if (mWifiAwareManager == null) { 4434 mWifiAwareManager = mContext.getSystemService(WifiAwareManager.class); 4435 } 4436 if (mWifiAwareManager == null) { 4437 Log.e(TAG, "Can't get WifiAwareManager (to disable usage)!"); 4438 } else { 4439 mWifiAwareManager.disableUsage(); 4440 } 4441 } 4442 4443 mNetworkInfo.setIsAvailable(false); 4444 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4445 mCountryCode.setReadyForChange(false); 4446 } 4447 } 4448 4449 class SupplicantStoppingState extends State { 4450 @Override 4451 public void enter() { 4452 /* Send any reset commands to supplicant before shutting it down */ 4453 handleNetworkDisconnect(); 4454 4455 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4456 if (suppState == null) suppState = "unknown"; 4457 4458 logd("SupplicantStoppingState: stopSupplicant " 4459 + " init.svc.wpa_supplicant=" + suppState); 4460 mWifiMonitor.stopSupplicant(); 4461 4462 /* Send ourselves a delayed message to indicate failure after a wait time */ 4463 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4464 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4465 setWifiState(WIFI_STATE_DISABLING); 4466 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4467 } 4468 @Override 4469 public boolean processMessage(Message message) { 4470 logStateAndMessage(message, this); 4471 4472 switch(message.what) { 4473 case WifiMonitor.SUP_CONNECTION_EVENT: 4474 loge("Supplicant connection received while stopping"); 4475 break; 4476 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4477 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4478 handleSupplicantConnectionLoss(false); 4479 transitionTo(mInitialState); 4480 break; 4481 case CMD_STOP_SUPPLICANT_FAILED: 4482 if (message.arg1 == mSupplicantStopFailureToken) { 4483 loge("Timed out on a supplicant stop, kill and proceed"); 4484 handleSupplicantConnectionLoss(true); 4485 transitionTo(mInitialState); 4486 } 4487 break; 4488 case CMD_START_SUPPLICANT: 4489 case CMD_STOP_SUPPLICANT: 4490 case CMD_START_AP: 4491 case CMD_STOP_AP: 4492 case CMD_SET_OPERATIONAL_MODE: 4493 deferMessage(message); 4494 break; 4495 default: 4496 return NOT_HANDLED; 4497 } 4498 return HANDLED; 4499 } 4500 } 4501 4502 class WaitForP2pDisableState extends State { 4503 private State mTransitionToState; 4504 @Override 4505 public void enter() { 4506 switch (getCurrentMessage().what) { 4507 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4508 mTransitionToState = mInitialState; 4509 break; 4510 case CMD_STOP_SUPPLICANT: 4511 default: 4512 mTransitionToState = mSupplicantStoppingState; 4513 break; 4514 } 4515 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4516 } 4517 @Override 4518 public boolean processMessage(Message message) { 4519 logStateAndMessage(message, this); 4520 4521 switch(message.what) { 4522 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4523 transitionTo(mTransitionToState); 4524 break; 4525 /* Defer wifi start/shut and driver commands */ 4526 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4527 case CMD_START_SUPPLICANT: 4528 case CMD_STOP_SUPPLICANT: 4529 case CMD_START_AP: 4530 case CMD_STOP_AP: 4531 case CMD_SET_OPERATIONAL_MODE: 4532 case CMD_START_SCAN: 4533 case CMD_DISCONNECT: 4534 case CMD_REASSOCIATE: 4535 case CMD_RECONNECT: 4536 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4537 deferMessage(message); 4538 break; 4539 default: 4540 return NOT_HANDLED; 4541 } 4542 return HANDLED; 4543 } 4544 } 4545 4546 class ScanModeState extends State { 4547 private int mLastOperationMode; 4548 @Override 4549 public void enter() { 4550 mLastOperationMode = mOperationalMode; 4551 } 4552 @Override 4553 public boolean processMessage(Message message) { 4554 logStateAndMessage(message, this); 4555 4556 switch(message.what) { 4557 case CMD_SET_OPERATIONAL_MODE: 4558 if (message.arg1 == CONNECT_MODE) { 4559 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4560 setWifiState(WIFI_STATE_ENABLED); 4561 // Load and re-enable networks when going back to enabled state 4562 // This is essential for networks to show up after restore 4563 mWifiConfigManager.loadFromStore(); 4564 p2pSendMessage(CMD_ENABLE_P2P); 4565 } 4566 mOperationalMode = CONNECT_MODE; 4567 transitionTo(mDisconnectedState); 4568 } else if (message.arg1 == DISABLED_MODE) { 4569 transitionTo(mSupplicantStoppingState); 4570 } 4571 // Nothing to do 4572 break; 4573 // Handle scan. All the connection related commands are 4574 // handled only in ConnectModeState 4575 case CMD_START_SCAN: 4576 handleScanRequest(message); 4577 break; 4578 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4579 SupplicantState state = handleSupplicantStateChange(message); 4580 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4581 break; 4582 default: 4583 return NOT_HANDLED; 4584 } 4585 return HANDLED; 4586 } 4587 } 4588 4589 4590 String smToString(Message message) { 4591 return smToString(message.what); 4592 } 4593 4594 String smToString(int what) { 4595 String s = sSmToString.get(what); 4596 if (s != null) { 4597 return s; 4598 } 4599 switch (what) { 4600 case WifiMonitor.DRIVER_HUNG_EVENT: 4601 s = "DRIVER_HUNG_EVENT"; 4602 break; 4603 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4604 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4605 break; 4606 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4607 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4608 break; 4609 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4610 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4611 break; 4612 case WifiManager.DISABLE_NETWORK: 4613 s = "WifiManager.DISABLE_NETWORK"; 4614 break; 4615 case WifiManager.CONNECT_NETWORK: 4616 s = "CONNECT_NETWORK"; 4617 break; 4618 case WifiManager.SAVE_NETWORK: 4619 s = "SAVE_NETWORK"; 4620 break; 4621 case WifiManager.FORGET_NETWORK: 4622 s = "FORGET_NETWORK"; 4623 break; 4624 case WifiMonitor.SUP_CONNECTION_EVENT: 4625 s = "SUP_CONNECTION_EVENT"; 4626 break; 4627 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4628 s = "SUP_DISCONNECTION_EVENT"; 4629 break; 4630 case WifiMonitor.SCAN_RESULTS_EVENT: 4631 s = "SCAN_RESULTS_EVENT"; 4632 break; 4633 case WifiMonitor.SCAN_FAILED_EVENT: 4634 s = "SCAN_FAILED_EVENT"; 4635 break; 4636 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4637 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4638 break; 4639 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4640 s = "AUTHENTICATION_FAILURE_EVENT"; 4641 break; 4642 case WifiMonitor.SSID_TEMP_DISABLED: 4643 s = "SSID_TEMP_DISABLED"; 4644 break; 4645 case WifiMonitor.SSID_REENABLED: 4646 s = "SSID_REENABLED"; 4647 break; 4648 case WifiMonitor.WPS_SUCCESS_EVENT: 4649 s = "WPS_SUCCESS_EVENT"; 4650 break; 4651 case WifiMonitor.WPS_FAIL_EVENT: 4652 s = "WPS_FAIL_EVENT"; 4653 break; 4654 case WifiMonitor.SUP_REQUEST_IDENTITY: 4655 s = "SUP_REQUEST_IDENTITY"; 4656 break; 4657 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4658 s = "NETWORK_CONNECTION_EVENT"; 4659 break; 4660 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4661 s = "NETWORK_DISCONNECTION_EVENT"; 4662 break; 4663 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4664 s = "ASSOCIATION_REJECTION_EVENT"; 4665 break; 4666 case WifiMonitor.ANQP_DONE_EVENT: 4667 s = "WifiMonitor.ANQP_DONE_EVENT"; 4668 break; 4669 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4670 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4671 break; 4672 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4673 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4674 break; 4675 case WifiMonitor.HS20_REMEDIATION_EVENT: 4676 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4677 break; 4678 case WifiMonitor.GAS_QUERY_START_EVENT: 4679 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4680 break; 4681 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4682 s = "GROUP_CREATING_TIMED_OUT"; 4683 break; 4684 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4685 s = "P2P_CONNECTION_CHANGED"; 4686 break; 4687 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4688 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4689 break; 4690 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4691 s = "P2P.SET_MIRACAST_MODE"; 4692 break; 4693 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4694 s = "P2P.BLOCK_DISCOVERY"; 4695 break; 4696 case WifiManager.CANCEL_WPS: 4697 s = "CANCEL_WPS"; 4698 break; 4699 case WifiManager.CANCEL_WPS_FAILED: 4700 s = "CANCEL_WPS_FAILED"; 4701 break; 4702 case WifiManager.CANCEL_WPS_SUCCEDED: 4703 s = "CANCEL_WPS_SUCCEDED"; 4704 break; 4705 case WifiManager.START_WPS: 4706 s = "START_WPS"; 4707 break; 4708 case WifiManager.START_WPS_SUCCEEDED: 4709 s = "START_WPS_SUCCEEDED"; 4710 break; 4711 case WifiManager.WPS_FAILED: 4712 s = "WPS_FAILED"; 4713 break; 4714 case WifiManager.WPS_COMPLETED: 4715 s = "WPS_COMPLETED"; 4716 break; 4717 case WifiManager.RSSI_PKTCNT_FETCH: 4718 s = "RSSI_PKTCNT_FETCH"; 4719 break; 4720 default: 4721 s = "what:" + Integer.toString(what); 4722 break; 4723 } 4724 return s; 4725 } 4726 4727 void registerConnected() { 4728 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4729 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4730 // On connect, reset wifiScoreReport 4731 mWifiScoreReport.reset(); 4732 } 4733 } 4734 4735 void registerDisconnected() { 4736 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4737 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4738 // We are switching away from this configuration, 4739 // hence record the time we were connected last 4740 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4741 if (config != null) { 4742 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4743 // temporary networks. 4744 if (config.ephemeral || config.isPasspoint()) { 4745 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4746 } 4747 } 4748 } 4749 } 4750 4751 /** 4752 * Returns Wificonfiguration object correponding to the currently connected network, null if 4753 * not connected. 4754 */ 4755 public WifiConfiguration getCurrentWifiConfiguration() { 4756 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4757 return null; 4758 } 4759 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4760 } 4761 4762 ScanResult getCurrentScanResult() { 4763 WifiConfiguration config = getCurrentWifiConfiguration(); 4764 if (config == null) { 4765 return null; 4766 } 4767 String BSSID = mWifiInfo.getBSSID(); 4768 if (BSSID == null) { 4769 BSSID = mTargetRoamBSSID; 4770 } 4771 ScanDetailCache scanDetailCache = 4772 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4773 4774 if (scanDetailCache == null) { 4775 return null; 4776 } 4777 4778 return scanDetailCache.get(BSSID); 4779 } 4780 4781 String getCurrentBSSID() { 4782 if (isLinkDebouncing()) { 4783 return null; 4784 } 4785 return mLastBssid; 4786 } 4787 4788 class ConnectModeState extends State { 4789 4790 @Override 4791 public void enter() { 4792 // Let the system know that wifi is available in client mode. 4793 setWifiState(WIFI_STATE_ENABLED); 4794 4795 mNetworkInfo.setIsAvailable(true); 4796 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4797 4798 // initialize network state 4799 setNetworkDetailedState(DetailedState.DISCONNECTED); 4800 4801 4802 // Inform WifiConnectivityManager that Wifi is enabled 4803 mWifiConnectivityManager.setWifiEnabled(true); 4804 // Inform metrics that Wifi is Enabled (but not yet connected) 4805 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4806 } 4807 4808 @Override 4809 public void exit() { 4810 // Let the system know that wifi is not available since we are exiting client mode. 4811 mNetworkInfo.setIsAvailable(false); 4812 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4813 // Inform WifiConnectivityManager that Wifi is disabled 4814 mWifiConnectivityManager.setWifiEnabled(false); 4815 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4816 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4817 } 4818 4819 @Override 4820 public boolean processMessage(Message message) { 4821 WifiConfiguration config; 4822 int netId; 4823 boolean ok; 4824 boolean didDisconnect; 4825 String bssid; 4826 String ssid; 4827 NetworkUpdateResult result; 4828 Set<Integer> removedNetworkIds; 4829 int reasonCode; 4830 logStateAndMessage(message, this); 4831 4832 switch (message.what) { 4833 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4834 mWifiDiagnostics.captureBugReportData( 4835 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4836 didBlackListBSSID = false; 4837 bssid = (String) message.obj; 4838 reasonCode = message.arg2; 4839 if (bssid == null || TextUtils.isEmpty(bssid)) { 4840 // If BSSID is null, use the target roam BSSID 4841 bssid = mTargetRoamBSSID; 4842 } 4843 if (bssid != null) { 4844 // If we have a BSSID, tell configStore to black list it 4845 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4846 reasonCode); 4847 } 4848 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4849 WifiConfiguration.NetworkSelectionStatus 4850 .DISABLED_ASSOCIATION_REJECTION); 4851 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4852 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4853 reportConnectionAttemptEnd( 4854 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4855 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4856 mWifiInjector.getWifiLastResortWatchdog() 4857 .noteConnectionFailureAndTriggerIfNeeded( 4858 getTargetSsid(), bssid, 4859 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4860 break; 4861 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4862 mWifiDiagnostics.captureBugReportData( 4863 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4864 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4865 if (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4866 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4867 WifiConfiguration.NetworkSelectionStatus 4868 .DISABLED_AUTHENTICATION_FAILURE); 4869 } 4870 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4871 reportConnectionAttemptEnd( 4872 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4873 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4874 mWifiInjector.getWifiLastResortWatchdog() 4875 .noteConnectionFailureAndTriggerIfNeeded( 4876 getTargetSsid(), mTargetRoamBSSID, 4877 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4878 break; 4879 case WifiMonitor.SSID_TEMP_DISABLED: 4880 netId = lookupFrameworkNetworkId(message.arg1); 4881 Log.e(TAG, "Supplicant SSID temporary disabled:" 4882 + mWifiConfigManager.getConfiguredNetwork(netId)); 4883 mWifiConfigManager.updateNetworkSelectionStatus( 4884 netId, 4885 WifiConfiguration.NetworkSelectionStatus 4886 .DISABLED_AUTHENTICATION_FAILURE); 4887 reportConnectionAttemptEnd( 4888 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4889 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4890 mWifiInjector.getWifiLastResortWatchdog() 4891 .noteConnectionFailureAndTriggerIfNeeded( 4892 getTargetSsid(), mTargetRoamBSSID, 4893 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4894 break; 4895 case WifiMonitor.SSID_REENABLED: 4896 netId = lookupFrameworkNetworkId(message.arg1); 4897 Log.d(TAG, "Supplicant SSID reenable:" 4898 + mWifiConfigManager.getConfiguredNetwork(netId)); 4899 // Do not re-enable it in Quality Network Selection since framework has its own 4900 // Algorithm of disable/enable 4901 break; 4902 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4903 SupplicantState state = handleSupplicantStateChange(message); 4904 // A driver/firmware hang can now put the interface in a down state. 4905 // We detect the interface going down and recover from it 4906 if (!SupplicantState.isDriverActive(state)) { 4907 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4908 handleNetworkDisconnect(); 4909 } 4910 log("Detected an interface down, restart driver"); 4911 // Rely on the fact that this will force us into killing supplicant and then 4912 // restart supplicant from a clean state. 4913 transitionTo(mSupplicantStoppingState); 4914 sendMessage(CMD_START_SUPPLICANT); 4915 break; 4916 } 4917 4918 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4919 // when authentication times out after a successful connection, 4920 // we can figure this from the supplicant state. If supplicant 4921 // state is DISCONNECTED, but the mNetworkInfo says we are not 4922 // disconnected, we need to handle a disconnection 4923 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4924 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4925 if (mVerboseLoggingEnabled) { 4926 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4927 } 4928 handleNetworkDisconnect(); 4929 transitionTo(mDisconnectedState); 4930 } 4931 4932 // If we have COMPLETED a connection to a BSSID, start doing 4933 // DNAv4/DNAv6 -style probing for on-link neighbors of 4934 // interest (e.g. routers); harmless if none are configured. 4935 if (state == SupplicantState.COMPLETED) { 4936 mIpManager.confirmConfiguration(); 4937 } 4938 break; 4939 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4940 if (message.arg1 == 1) { 4941 mWifiNative.disconnect(); 4942 mTemporarilyDisconnectWifi = true; 4943 } else { 4944 mWifiNative.reconnect(); 4945 mTemporarilyDisconnectWifi = false; 4946 } 4947 break; 4948 case CMD_ADD_OR_UPDATE_NETWORK: 4949 config = (WifiConfiguration) message.obj; 4950 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4951 if (!result.isSuccess()) { 4952 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4953 } 4954 replyToMessage(message, message.what, result.getNetworkId()); 4955 break; 4956 case CMD_REMOVE_NETWORK: 4957 netId = message.arg1; 4958 ok = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 4959 if (!ok) { 4960 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4961 } else if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4962 // Disconnect and let autojoin reselect a new network 4963 sendMessage(CMD_DISCONNECT); 4964 } 4965 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4966 break; 4967 case CMD_ENABLE_NETWORK: 4968 boolean disableOthers = message.arg2 == 1; 4969 netId = message.arg1; 4970 if (disableOthers) { 4971 // If the app has all the necessary permissions, this will trigger a connect 4972 // attempt. 4973 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4974 } else { 4975 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4976 } 4977 if (!ok) { 4978 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4979 } 4980 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4981 break; 4982 case WifiManager.DISABLE_NETWORK: 4983 netId = message.arg1; 4984 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4985 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4986 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4987 // Disconnect and let autojoin reselect a new network 4988 sendMessage(CMD_DISCONNECT); 4989 } 4990 } else { 4991 loge("Failed to remove network"); 4992 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4993 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4994 WifiManager.ERROR); 4995 } 4996 break; 4997 case CMD_DISABLE_EPHEMERAL_NETWORK: 4998 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4999 if (config != null) { 5000 if (config.networkId == mTargetNetworkId 5001 || config.networkId == mLastNetworkId) { 5002 // Disconnect and let autojoin reselect a new network 5003 sendMessage(CMD_DISCONNECT); 5004 } 5005 } 5006 break; 5007 case CMD_SAVE_CONFIG: 5008 ok = mWifiConfigManager.saveToStore(true); 5009 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 5010 // Inform the backup manager about a data change 5011 mBackupManagerProxy.notifyDataChanged(); 5012 break; 5013 case CMD_GET_CONFIGURED_NETWORKS: 5014 replyToMessage(message, message.what, 5015 mWifiConfigManager.getSavedNetworks()); 5016 break; 5017 case WifiMonitor.SUP_REQUEST_IDENTITY: 5018 int supplicantNetworkId = message.arg2; 5019 netId = lookupFrameworkNetworkId(supplicantNetworkId); 5020 boolean identitySent = false; 5021 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 5022 if (targetWificonfiguration != null 5023 && targetWificonfiguration.enterpriseConfig != null) { 5024 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 5025 } 5026 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 5027 if (targetWificonfiguration != null 5028 && targetWificonfiguration.networkId == netId 5029 && (targetWificonfiguration.allowedKeyManagement 5030 .get(WifiConfiguration.KeyMgmt.WPA_EAP) 5031 || targetWificonfiguration.allowedKeyManagement 5032 .get(WifiConfiguration.KeyMgmt.IEEE8021X)) 5033 && TelephonyUtil.isSimEapMethod(eapMethod)) { 5034 String identity = 5035 TelephonyUtil.getSimIdentity(getTelephonyManager(), eapMethod); 5036 if (identity != null) { 5037 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 5038 identitySent = true; 5039 } 5040 } 5041 if (!identitySent) { 5042 // Supplicant lacks credentials to connect to that network, hence black list 5043 ssid = (String) message.obj; 5044 if (targetWificonfiguration != null && ssid != null 5045 && targetWificonfiguration.SSID != null 5046 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 5047 mWifiConfigManager.updateNetworkSelectionStatus( 5048 targetWificonfiguration.networkId, 5049 WifiConfiguration.NetworkSelectionStatus 5050 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 5051 } 5052 mWifiNative.disconnect(); 5053 } 5054 break; 5055 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 5056 logd("Received SUP_REQUEST_SIM_AUTH"); 5057 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 5058 if (requestData != null) { 5059 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 5060 handleGsmAuthRequest(requestData); 5061 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 5062 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 5063 handle3GAuthRequest(requestData); 5064 } 5065 } else { 5066 loge("Invalid sim auth request"); 5067 } 5068 break; 5069 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 5070 replyToMessage(message, message.what, 5071 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 5072 break; 5073 case CMD_GET_MATCHING_CONFIG: 5074 // TODO(b/31065385) 5075 replyToMessage(message, message.what, null); 5076 break; 5077 case CMD_RECONNECT: 5078 mWifiConnectivityManager.forceConnectivityScan(); 5079 break; 5080 case CMD_REASSOCIATE: 5081 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5082 mWifiNative.reassociate(); 5083 break; 5084 case CMD_RELOAD_TLS_AND_RECONNECT: 5085 if (mWifiConfigManager.needsUnlockedKeyStore()) { 5086 logd("Reconnecting to give a chance to un-connected TLS networks"); 5087 mWifiNative.disconnect(); 5088 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5089 mWifiNative.reconnect(); 5090 } 5091 break; 5092 case CMD_START_ROAM: 5093 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5094 return HANDLED; 5095 case CMD_START_CONNECT: 5096 /* connect command coming from auto-join */ 5097 netId = message.arg1; 5098 bssid = (String) message.obj; 5099 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 5100 logd("CMD_START_CONNECT sup state " 5101 + mSupplicantStateTracker.getSupplicantStateName() 5102 + " my state " + getCurrentState().getName() 5103 + " nid=" + Integer.toString(netId) 5104 + " roam=" + Boolean.toString(mAutoRoaming)); 5105 if (config == null) { 5106 loge("CMD_START_CONNECT and no config, bail out..."); 5107 break; 5108 } 5109 mTargetNetworkId = netId; 5110 setTargetBssid(config, bssid); 5111 5112 reportConnectionAttemptStart(config, mTargetRoamBSSID, 5113 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 5114 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 5115 if (mWifiSupplicantControl.connectToNetwork(config, shouldDisconnect)) { 5116 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5117 targetWificonfiguration = config; 5118 mAutoRoaming = false; 5119 if (isRoaming() || isLinkDebouncing()) { 5120 transitionTo(mRoamingState); 5121 } else if (shouldDisconnect) { 5122 transitionTo(mDisconnectingState); 5123 } else { 5124 transitionTo(mDisconnectedState); 5125 } 5126 } else { 5127 loge("CMD_START_CONNECT Failed to start connection to network " + config); 5128 reportConnectionAttemptEnd( 5129 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 5130 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5131 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5132 WifiManager.ERROR); 5133 break; 5134 } 5135 break; 5136 case CMD_REMOVE_APP_CONFIGURATIONS: 5137 removedNetworkIds = 5138 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 5139 if (removedNetworkIds.contains(mTargetNetworkId) || 5140 removedNetworkIds.contains(mLastNetworkId)) { 5141 // Disconnect and let autojoin reselect a new network. 5142 sendMessage(CMD_DISCONNECT); 5143 } 5144 break; 5145 case CMD_REMOVE_USER_CONFIGURATIONS: 5146 removedNetworkIds = 5147 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5148 if (removedNetworkIds.contains(mTargetNetworkId) || 5149 removedNetworkIds.contains(mLastNetworkId)) { 5150 // Disconnect and let autojoin reselect a new network. 5151 sendMessage(CMD_DISCONNECT); 5152 } 5153 break; 5154 case WifiManager.CONNECT_NETWORK: 5155 /** 5156 * The connect message can contain a network id passed as arg1 on message or 5157 * or a config passed as obj on message. 5158 * For a new network, a config is passed to create and connect. 5159 * For an existing network, a network id is passed 5160 */ 5161 netId = message.arg1; 5162 config = (WifiConfiguration) message.obj; 5163 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5164 // New network addition. 5165 if (config != null) { 5166 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5167 if (!result.isSuccess()) { 5168 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5169 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5170 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5171 WifiManager.ERROR); 5172 break; 5173 } 5174 netId = result.getNetworkId(); 5175 } 5176 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5177 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5178 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5179 WifiManager.NOT_AUTHORIZED); 5180 break; 5181 } 5182 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5183 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5184 break; 5185 case WifiManager.SAVE_NETWORK: 5186 config = (WifiConfiguration) message.obj; 5187 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5188 if (config == null) { 5189 loge("SAVE_NETWORK with null configuration" 5190 + mSupplicantStateTracker.getSupplicantStateName() 5191 + " my state " + getCurrentState().getName()); 5192 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5193 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5194 WifiManager.ERROR); 5195 break; 5196 } 5197 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5198 if (!result.isSuccess()) { 5199 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5200 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5201 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5202 WifiManager.ERROR); 5203 break; 5204 } 5205 netId = result.getNetworkId(); 5206 if (mWifiInfo.getNetworkId() == netId) { 5207 if (result.hasIpChanged()) { 5208 // The currently connection configuration was changed 5209 // We switched from DHCP to static or from static to DHCP, or the 5210 // static IP address has changed. 5211 log("Reconfiguring IP on connection"); 5212 // TODO: clear addresses and disable IPv6 5213 // to simplify obtainingIpState. 5214 transitionTo(mObtainingIpState); 5215 } 5216 if (result.hasProxyChanged()) { 5217 log("Reconfiguring proxy on connection"); 5218 mIpManager.setHttpProxy( 5219 getCurrentWifiConfiguration().getHttpProxy()); 5220 } 5221 } else { 5222 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5223 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5224 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5225 WifiManager.NOT_AUTHORIZED); 5226 break; 5227 } 5228 } 5229 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5230 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5231 break; 5232 case WifiManager.FORGET_NETWORK: 5233 netId = message.arg1; 5234 if (mWifiConfigManager.removeNetwork(netId, message.sendingUid)) { 5235 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 5236 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 5237 (WifiConfiguration) message.obj); 5238 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5239 // Disconnect and let autojoin reselect a new network 5240 sendMessage(CMD_DISCONNECT); 5241 } 5242 } else { 5243 loge("Failed to forget network"); 5244 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, 5245 WifiManager.ERROR); 5246 } 5247 break; 5248 case WifiManager.START_WPS: 5249 WpsInfo wpsInfo = (WpsInfo) message.obj; 5250 WpsResult wpsResult; 5251 switch (wpsInfo.setup) { 5252 case WpsInfo.PBC: 5253 wpsResult = mWifiSupplicantControl.startWpsPbc(wpsInfo); 5254 break; 5255 case WpsInfo.KEYPAD: 5256 wpsResult = 5257 mWifiSupplicantControl.startWpsWithPinFromAccessPoint(wpsInfo); 5258 break; 5259 case WpsInfo.DISPLAY: 5260 wpsResult = mWifiSupplicantControl.startWpsWithPinFromDevice(wpsInfo); 5261 break; 5262 default: 5263 wpsResult = new WpsResult(Status.FAILURE); 5264 loge("Invalid setup for WPS"); 5265 break; 5266 } 5267 if (wpsResult.status == Status.SUCCESS) { 5268 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5269 transitionTo(mWpsRunningState); 5270 } else { 5271 loge("Failed to start WPS with config " + wpsInfo.toString()); 5272 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5273 } 5274 break; 5275 case CMD_ASSOCIATED_BSSID: 5276 // This is where we can confirm the connection BSSID. Use it to find the 5277 // right ScanDetail to populate metrics. 5278 String someBssid = (String) message.obj; 5279 if (someBssid != null) { 5280 // Get the ScanDetail associated with this BSSID. 5281 ScanDetailCache scanDetailCache = 5282 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5283 if (scanDetailCache != null) { 5284 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5285 someBssid)); 5286 } 5287 } 5288 return NOT_HANDLED; 5289 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5290 if (mVerboseLoggingEnabled) log("Network connection established"); 5291 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5292 mLastBssid = (String) message.obj; 5293 reasonCode = message.arg2; 5294 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5295 // Currently, the last connected network configuration is left in 5296 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5297 // to it after a config store reload. Hence the old network Id lookups may not 5298 // work, so disconnect the network and let network selector reselect a new 5299 // network. 5300 if (getCurrentWifiConfiguration() != null) { 5301 mWifiInfo.setBSSID(mLastBssid); 5302 mWifiInfo.setNetworkId(mLastNetworkId); 5303 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5304 sendNetworkStateChangeBroadcast(mLastBssid); 5305 transitionTo(mObtainingIpState); 5306 } else { 5307 logw("Connected to unknown networkId " + mLastNetworkId 5308 + ", disconnecting..."); 5309 sendMessage(CMD_DISCONNECT); 5310 } 5311 break; 5312 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5313 // Calling handleNetworkDisconnect here is redundant because we might already 5314 // have called it when leaving L2ConnectedState to go to disconnecting state 5315 // or thru other path 5316 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5317 // if they are valid, and only in this case call handleNEtworkDisconnect, 5318 // TODO: this should be fixed for a L MR release 5319 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5320 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5321 // at the chip etc... 5322 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5323 handleNetworkDisconnect(); 5324 transitionTo(mDisconnectedState); 5325 break; 5326 case CMD_QUERY_OSU_ICON: 5327 mPasspointManager.queryPasspointIcon( 5328 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5329 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5330 break; 5331 case CMD_MATCH_PROVIDER_NETWORK: 5332 // TODO(b/31065385): Passpoint config management. 5333 replyToMessage(message, message.what, 0); 5334 break; 5335 default: 5336 return NOT_HANDLED; 5337 } 5338 return HANDLED; 5339 } 5340 } 5341 5342 private void updateCapabilities(WifiConfiguration config) { 5343 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5344 if (config != null) { 5345 if (config.ephemeral) { 5346 networkCapabilities.removeCapability( 5347 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5348 } else { 5349 networkCapabilities.addCapability( 5350 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5351 } 5352 5353 networkCapabilities.setSignalStrength( 5354 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5355 ? mWifiInfo.getRssi() 5356 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5357 } 5358 5359 if (mWifiInfo.getMeteredHint()) { 5360 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5361 } 5362 5363 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5364 } 5365 5366 private class WifiNetworkAgent extends NetworkAgent { 5367 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5368 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5369 super(l, c, TAG, ni, nc, lp, score, misc); 5370 } 5371 5372 @Override 5373 protected void unwanted() { 5374 // Ignore if we're not the current networkAgent. 5375 if (this != mNetworkAgent) return; 5376 if (mVerboseLoggingEnabled) { 5377 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5378 } 5379 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5380 } 5381 5382 @Override 5383 protected void networkStatus(int status, String redirectUrl) { 5384 if (this != mNetworkAgent) return; 5385 if (status == NetworkAgent.INVALID_NETWORK) { 5386 if (mVerboseLoggingEnabled) { 5387 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5388 + Integer.toString(mWifiInfo.score)); 5389 } 5390 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5391 } else if (status == NetworkAgent.VALID_NETWORK) { 5392 if (mVerboseLoggingEnabled) { 5393 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5394 + Integer.toString(mWifiInfo.score)); 5395 } 5396 doNetworkStatus(status); 5397 } 5398 } 5399 5400 @Override 5401 protected void saveAcceptUnvalidated(boolean accept) { 5402 if (this != mNetworkAgent) return; 5403 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5404 } 5405 5406 @Override 5407 protected void startPacketKeepalive(Message msg) { 5408 WifiStateMachine.this.sendMessage( 5409 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5410 } 5411 5412 @Override 5413 protected void stopPacketKeepalive(Message msg) { 5414 WifiStateMachine.this.sendMessage( 5415 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5416 } 5417 5418 @Override 5419 protected void setSignalStrengthThresholds(int[] thresholds) { 5420 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5421 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5422 // MAX_VALUE at the start/end of the thresholds array if necessary. 5423 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5424 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5425 // re-arm the hardware event. This needs to be done on the state machine thread to 5426 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5427 // sent in the NetworkCapabilities) must be the one received from the hardware event 5428 // received, or we might skip callbacks. 5429 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5430 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5431 if (thresholds.length == 0) { 5432 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5433 mWifiInfo.getRssi()); 5434 return; 5435 } 5436 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5437 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5438 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5439 Arrays.sort(rssiVals); 5440 byte[] rssiRange = new byte[rssiVals.length]; 5441 for (int i = 0; i < rssiVals.length; i++) { 5442 int val = rssiVals[i]; 5443 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5444 rssiRange[i] = (byte) val; 5445 } else { 5446 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5447 + Arrays.toString(rssiVals)); 5448 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5449 mWifiInfo.getRssi()); 5450 return; 5451 } 5452 } 5453 // TODO: Do we quash rssi values in this sorted array which are very close? 5454 mRssiRanges = rssiRange; 5455 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5456 mWifiInfo.getRssi()); 5457 } 5458 5459 @Override 5460 protected void preventAutomaticReconnect() { 5461 if (this != mNetworkAgent) return; 5462 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5463 } 5464 } 5465 5466 void unwantedNetwork(int reason) { 5467 sendMessage(CMD_UNWANTED_NETWORK, reason); 5468 } 5469 5470 void doNetworkStatus(int status) { 5471 sendMessage(CMD_NETWORK_STATUS, status); 5472 } 5473 5474 // rfc4186 & rfc4187: 5475 // create Permanent Identity base on IMSI, 5476 // identity = usernam@realm 5477 // with username = prefix | IMSI 5478 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5479 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5480 String mcc; 5481 String mnc; 5482 String prefix; 5483 5484 if (imsi == null || imsi.isEmpty()) 5485 return ""; 5486 5487 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5488 prefix = "1"; 5489 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5490 prefix = "0"; 5491 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5492 prefix = "6"; 5493 else // not a valide EapMethod 5494 return ""; 5495 5496 /* extract mcc & mnc from mccMnc */ 5497 if (mccMnc != null && !mccMnc.isEmpty()) { 5498 mcc = mccMnc.substring(0, 3); 5499 mnc = mccMnc.substring(3); 5500 if (mnc.length() == 2) 5501 mnc = "0" + mnc; 5502 } else { 5503 // extract mcc & mnc from IMSI, assume mnc size is 3 5504 mcc = imsi.substring(0, 3); 5505 mnc = imsi.substring(3, 6); 5506 } 5507 5508 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5509 } 5510 5511 boolean startScanForConfiguration(WifiConfiguration config) { 5512 if (config == null) 5513 return false; 5514 5515 // We are still seeing a fairly high power consumption triggered by autojoin scans 5516 // Hence do partial scans only for PSK configuration that are roamable since the 5517 // primary purpose of the partial scans is roaming. 5518 // Full badn scans with exponential backoff for the purpose or extended roaming and 5519 // network switching are performed unconditionally. 5520 ScanDetailCache scanDetailCache = 5521 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5522 if (scanDetailCache == null 5523 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5524 || scanDetailCache.size() > 6) { 5525 //return true but to not trigger the scan 5526 return true; 5527 } 5528 Set<Integer> freqs = 5529 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5530 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5531 if (freqs != null && freqs.size() != 0) { 5532 //if (mVerboseLoggingEnabled) { 5533 logd("starting scan for " + config.configKey() + " with " + freqs); 5534 //} 5535 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5536 if (config.hiddenSSID) { 5537 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5538 } 5539 // Call wifi native to start the scan 5540 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5541 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5542 } else { 5543 // used for debug only, mark scan as failed 5544 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5545 } 5546 return true; 5547 } else { 5548 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5549 return false; 5550 } 5551 } 5552 5553 class L2ConnectedState extends State { 5554 @Override 5555 public void enter() { 5556 mRssiPollToken++; 5557 if (mEnableRssiPolling) { 5558 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5559 } 5560 if (mNetworkAgent != null) { 5561 loge("Have NetworkAgent when entering L2Connected"); 5562 setNetworkDetailedState(DetailedState.DISCONNECTED); 5563 } 5564 setNetworkDetailedState(DetailedState.CONNECTING); 5565 5566 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5567 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5568 mLinkProperties, 60, mNetworkMisc); 5569 5570 // We must clear the config BSSID, as the wifi chipset may decide to roam 5571 // from this point on and having the BSSID specified in the network block would 5572 // cause the roam to faile and the device to disconnect 5573 clearTargetBssid("L2ConnectedState"); 5574 mCountryCode.setReadyForChange(false); 5575 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5576 } 5577 5578 @Override 5579 public void exit() { 5580 mIpManager.stop(); 5581 5582 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5583 // Bug: 15347363 5584 // For paranoia's sake, call handleNetworkDisconnect 5585 // only if BSSID is null or last networkId 5586 // is not invalid. 5587 if (mVerboseLoggingEnabled) { 5588 StringBuilder sb = new StringBuilder(); 5589 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5590 if (mLastBssid !=null) { 5591 sb.append(" ").append(mLastBssid); 5592 } 5593 } 5594 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5595 handleNetworkDisconnect(); 5596 } 5597 mCountryCode.setReadyForChange(true); 5598 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5599 } 5600 5601 @Override 5602 public boolean processMessage(Message message) { 5603 logStateAndMessage(message, this); 5604 5605 switch (message.what) { 5606 case DhcpClient.CMD_PRE_DHCP_ACTION: 5607 handlePreDhcpSetup(); 5608 break; 5609 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5610 mIpManager.completedPreDhcpAction(); 5611 break; 5612 case DhcpClient.CMD_POST_DHCP_ACTION: 5613 handlePostDhcpSetup(); 5614 // We advance to mConnectedState because IpManager will also send a 5615 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5616 // which calls updateLinkProperties, which then sends 5617 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5618 // 5619 // In the event of failure, we transition to mDisconnectingState 5620 // similarly--via messages sent back from IpManager. 5621 break; 5622 case CMD_IPV4_PROVISIONING_SUCCESS: { 5623 handleIPv4Success((DhcpResults) message.obj); 5624 sendNetworkStateChangeBroadcast(mLastBssid); 5625 break; 5626 } 5627 case CMD_IPV4_PROVISIONING_FAILURE: { 5628 handleIPv4Failure(); 5629 break; 5630 } 5631 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5632 handleSuccessfulIpConfiguration(); 5633 reportConnectionAttemptEnd( 5634 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5635 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5636 sendConnectedState(); 5637 transitionTo(mConnectedState); 5638 break; 5639 case CMD_IP_CONFIGURATION_LOST: 5640 // Get Link layer stats so that we get fresh tx packet counters. 5641 getWifiLinkLayerStats(); 5642 handleIpConfigurationLost(); 5643 reportConnectionAttemptEnd( 5644 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5645 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5646 transitionTo(mDisconnectingState); 5647 break; 5648 case CMD_IP_REACHABILITY_LOST: 5649 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5650 if (mIpReachabilityDisconnectEnabled) { 5651 handleIpReachabilityLost(); 5652 transitionTo(mDisconnectingState); 5653 } else { 5654 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5655 } 5656 break; 5657 case CMD_DISCONNECT: 5658 mWifiNative.disconnect(); 5659 transitionTo(mDisconnectingState); 5660 break; 5661 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5662 if (message.arg1 == 1) { 5663 mWifiNative.disconnect(); 5664 mTemporarilyDisconnectWifi = true; 5665 transitionTo(mDisconnectingState); 5666 } 5667 break; 5668 case CMD_SET_OPERATIONAL_MODE: 5669 if (message.arg1 != CONNECT_MODE) { 5670 sendMessage(CMD_DISCONNECT); 5671 deferMessage(message); 5672 } 5673 break; 5674 /* Ignore connection to same network */ 5675 case WifiManager.CONNECT_NETWORK: 5676 int netId = message.arg1; 5677 if (mWifiInfo.getNetworkId() == netId) { 5678 break; 5679 } 5680 return NOT_HANDLED; 5681 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5682 mWifiInfo.setBSSID((String) message.obj); 5683 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5684 mWifiInfo.setNetworkId(mLastNetworkId); 5685 if(!mLastBssid.equals(message.obj)) { 5686 mLastBssid = (String) message.obj; 5687 sendNetworkStateChangeBroadcast(mLastBssid); 5688 } 5689 break; 5690 case CMD_RSSI_POLL: 5691 if (message.arg1 == mRssiPollToken) { 5692 if (mEnableChipWakeUpWhenAssociated) { 5693 if (mVerboseLoggingEnabled) { 5694 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5695 } 5696 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5697 if (stats != null) { 5698 // Sanity check the results provided by driver 5699 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5700 && (stats.rssi_mgmt == 0 5701 || stats.beacon_rx == 0)) { 5702 stats = null; 5703 } 5704 } 5705 // Get Info and continue polling 5706 fetchRssiLinkSpeedAndFrequencyNative(); 5707 // Send the update score to network agent. 5708 mWifiScoreReport.calculateAndReportScore( 5709 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5710 mWifiMetrics); 5711 } 5712 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5713 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5714 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5715 } else { 5716 // Polling has completed 5717 } 5718 break; 5719 case CMD_ENABLE_RSSI_POLL: 5720 cleanWifiScore(); 5721 if (mEnableRssiPollWhenAssociated) { 5722 mEnableRssiPolling = (message.arg1 == 1); 5723 } else { 5724 mEnableRssiPolling = false; 5725 } 5726 mRssiPollToken++; 5727 if (mEnableRssiPolling) { 5728 // First poll 5729 fetchRssiLinkSpeedAndFrequencyNative(); 5730 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5731 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5732 } 5733 break; 5734 case WifiManager.RSSI_PKTCNT_FETCH: 5735 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5736 fetchRssiLinkSpeedAndFrequencyNative(); 5737 info.rssi = mWifiInfo.getRssi(); 5738 fetchPktcntNative(info); 5739 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5740 break; 5741 case CMD_DELAYED_NETWORK_DISCONNECT: 5742 if (!isLinkDebouncing()) { 5743 5744 // Ignore if we are not debouncing 5745 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5746 + message.arg1); 5747 return HANDLED; 5748 } else { 5749 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5750 + message.arg1); 5751 5752 mIsLinkDebouncing = false; 5753 // If we are still debouncing while this message comes, 5754 // it means we were not able to reconnect within the alloted time 5755 // = LINK_FLAPPING_DEBOUNCE_MSEC 5756 // and thus, trigger a real disconnect 5757 handleNetworkDisconnect(); 5758 transitionTo(mDisconnectedState); 5759 } 5760 break; 5761 case CMD_ASSOCIATED_BSSID: 5762 if ((String) message.obj == null) { 5763 logw("Associated command w/o BSSID"); 5764 break; 5765 } 5766 mLastBssid = (String) message.obj; 5767 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5768 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5769 mWifiInfo.setBSSID((String) message.obj); 5770 sendNetworkStateChangeBroadcast(mLastBssid); 5771 } 5772 break; 5773 case CMD_START_RSSI_MONITORING_OFFLOAD: 5774 case CMD_RSSI_THRESHOLD_BREACH: 5775 byte currRssi = (byte) message.arg1; 5776 processRssiThreshold(currRssi, message.what); 5777 break; 5778 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5779 stopRssiMonitoringOffload(); 5780 break; 5781 case CMD_RESET_SIM_NETWORKS: 5782 if (message.arg1 == 0 // sim was removed 5783 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5784 WifiConfiguration config = 5785 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5786 if (TelephonyUtil.isSimConfig(config)) { 5787 mWifiNative.disconnect(); 5788 transitionTo(mDisconnectingState); 5789 } 5790 } 5791 /* allow parent state to reset data for other networks */ 5792 return NOT_HANDLED; 5793 default: 5794 return NOT_HANDLED; 5795 } 5796 5797 return HANDLED; 5798 } 5799 } 5800 5801 class ObtainingIpState extends State { 5802 @Override 5803 public void enter() { 5804 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5805 boolean isUsingStaticIp = 5806 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5807 if (mVerboseLoggingEnabled) { 5808 String key = ""; 5809 if (getCurrentWifiConfiguration() != null) { 5810 key = getCurrentWifiConfiguration().configKey(); 5811 } 5812 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5813 + " " + key + " " 5814 + " roam=" + mAutoRoaming 5815 + " static=" + isUsingStaticIp); 5816 } 5817 5818 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5819 // We might still be roaming 5820 mIsLinkDebouncing = false; 5821 5822 // Send event to CM & network change broadcast 5823 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5824 5825 // We must clear the config BSSID, as the wifi chipset may decide to roam 5826 // from this point on and having the BSSID specified in the network block would 5827 // cause the roam to fail and the device to disconnect. 5828 clearTargetBssid("ObtainingIpAddress"); 5829 5830 // Stop IpManager in case we're switching from DHCP to static 5831 // configuration or vice versa. 5832 // 5833 // TODO: Only ever enter this state the first time we connect to a 5834 // network, never on switching between static configuration and 5835 // DHCP. When we transition from static configuration to DHCP in 5836 // particular, we must tell ConnectivityService that we're 5837 // disconnected, because DHCP might take a long time during which 5838 // connectivity APIs such as getActiveNetworkInfo should not return 5839 // CONNECTED. 5840 stopIpManager(); 5841 5842 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5843 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5844 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5845 } 5846 5847 if (!isUsingStaticIp) { 5848 final IpManager.ProvisioningConfiguration prov = 5849 IpManager.buildProvisioningConfiguration() 5850 .withPreDhcpAction() 5851 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5852 .build(); 5853 mIpManager.startProvisioning(prov); 5854 // Get Link layer stats so as we get fresh tx packet counters 5855 getWifiLinkLayerStats(); 5856 } else { 5857 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5858 if (config.ipAddress == null) { 5859 logd("Static IP lacks address"); 5860 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5861 } else { 5862 final IpManager.ProvisioningConfiguration prov = 5863 IpManager.buildProvisioningConfiguration() 5864 .withStaticConfiguration(config) 5865 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5866 .build(); 5867 mIpManager.startProvisioning(prov); 5868 } 5869 } 5870 } 5871 5872 @Override 5873 public boolean processMessage(Message message) { 5874 logStateAndMessage(message, this); 5875 5876 switch(message.what) { 5877 case CMD_START_CONNECT: 5878 case CMD_START_ROAM: 5879 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5880 break; 5881 case WifiManager.SAVE_NETWORK: 5882 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5883 deferMessage(message); 5884 break; 5885 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5886 reportConnectionAttemptEnd( 5887 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5888 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5889 return NOT_HANDLED; 5890 case CMD_SET_HIGH_PERF_MODE: 5891 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5892 deferMessage(message); 5893 break; 5894 /* Defer scan request since we should not switch to other channels at DHCP */ 5895 case CMD_START_SCAN: 5896 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5897 deferMessage(message); 5898 break; 5899 default: 5900 return NOT_HANDLED; 5901 } 5902 return HANDLED; 5903 } 5904 } 5905 5906 private void sendConnectedState() { 5907 // If this network was explicitly selected by the user, evaluate whether to call 5908 // explicitlySelected() so the system can treat it appropriately. 5909 WifiConfiguration config = getCurrentWifiConfiguration(); 5910 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5911 boolean prompt = 5912 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5913 if (mVerboseLoggingEnabled) { 5914 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5915 } 5916 if (prompt) { 5917 // Selected by the user via Settings or QuickSettings. If this network has Internet 5918 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5919 // really want to switch, or has already confirmed and selected "Don't ask again". 5920 if (mVerboseLoggingEnabled) { 5921 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5922 } 5923 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5924 } 5925 } 5926 5927 setNetworkDetailedState(DetailedState.CONNECTED); 5928 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5929 sendNetworkStateChangeBroadcast(mLastBssid); 5930 } 5931 5932 class RoamingState extends State { 5933 boolean mAssociated; 5934 @Override 5935 public void enter() { 5936 if (mVerboseLoggingEnabled) { 5937 log("RoamingState Enter" 5938 + " mScreenOn=" + mScreenOn ); 5939 } 5940 5941 // Make sure we disconnect if roaming fails 5942 roamWatchdogCount++; 5943 logd("Start Roam Watchdog " + roamWatchdogCount); 5944 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5945 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5946 mAssociated = false; 5947 } 5948 @Override 5949 public boolean processMessage(Message message) { 5950 logStateAndMessage(message, this); 5951 WifiConfiguration config; 5952 switch (message.what) { 5953 case CMD_IP_CONFIGURATION_LOST: 5954 config = getCurrentWifiConfiguration(); 5955 if (config != null) { 5956 mWifiDiagnostics.captureBugReportData( 5957 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5958 } 5959 return NOT_HANDLED; 5960 case CMD_UNWANTED_NETWORK: 5961 if (mVerboseLoggingEnabled) { 5962 log("Roaming and CS doesnt want the network -> ignore"); 5963 } 5964 return HANDLED; 5965 case CMD_SET_OPERATIONAL_MODE: 5966 if (message.arg1 != CONNECT_MODE) { 5967 deferMessage(message); 5968 } 5969 break; 5970 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5971 /** 5972 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5973 * before NETWORK_DISCONNECTION_EVENT 5974 * And there is an associated BSSID corresponding to our target BSSID, then 5975 * we have missed the network disconnection, transition to mDisconnectedState 5976 * and handle the rest of the events there. 5977 */ 5978 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5979 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5980 || stateChangeResult.state == SupplicantState.INACTIVE 5981 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5982 if (mVerboseLoggingEnabled) { 5983 log("STATE_CHANGE_EVENT in roaming state " 5984 + stateChangeResult.toString() ); 5985 } 5986 if (stateChangeResult.BSSID != null 5987 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5988 handleNetworkDisconnect(); 5989 transitionTo(mDisconnectedState); 5990 } 5991 } 5992 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5993 // We completed the layer2 roaming part 5994 mAssociated = true; 5995 if (stateChangeResult.BSSID != null) { 5996 mTargetRoamBSSID = stateChangeResult.BSSID; 5997 } 5998 } 5999 break; 6000 case CMD_ROAM_WATCHDOG_TIMER: 6001 if (roamWatchdogCount == message.arg1) { 6002 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 6003 mWifiMetrics.endConnectionEvent( 6004 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 6005 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6006 mRoamFailCount++; 6007 handleNetworkDisconnect(); 6008 mWifiNative.disconnect(); 6009 transitionTo(mDisconnectedState); 6010 } 6011 break; 6012 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6013 if (mAssociated) { 6014 if (mVerboseLoggingEnabled) { 6015 log("roaming and Network connection established"); 6016 } 6017 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 6018 mLastBssid = (String) message.obj; 6019 mWifiInfo.setBSSID(mLastBssid); 6020 mWifiInfo.setNetworkId(mLastNetworkId); 6021 int reasonCode = message.arg2; 6022 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 6023 sendNetworkStateChangeBroadcast(mLastBssid); 6024 6025 // Successful framework roam! (probably) 6026 reportConnectionAttemptEnd( 6027 WifiMetrics.ConnectionEvent.FAILURE_NONE, 6028 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6029 6030 // We must clear the config BSSID, as the wifi chipset may decide to roam 6031 // from this point on and having the BSSID specified by QNS would cause 6032 // the roam to fail and the device to disconnect. 6033 // When transition from RoamingState to DisconnectingState or 6034 // DisconnectedState, the config BSSID is cleared by 6035 // handleNetworkDisconnect(). 6036 clearTargetBssid("RoamingCompleted"); 6037 6038 // We used to transition to ObtainingIpState in an 6039 // attempt to do DHCPv4 RENEWs on framework roams. 6040 // DHCP can take too long to time out, and we now rely 6041 // upon IpManager's use of IpReachabilityMonitor to 6042 // confirm our current network configuration. 6043 // 6044 // mIpManager.confirmConfiguration() is called within 6045 // the handling of SupplicantState.COMPLETED. 6046 transitionTo(mConnectedState); 6047 } else { 6048 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6049 } 6050 break; 6051 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6052 // Throw away but only if it corresponds to the network we're roaming to 6053 String bssid = (String) message.obj; 6054 if (true) { 6055 String target = ""; 6056 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 6057 log("NETWORK_DISCONNECTION_EVENT in roaming state" 6058 + " BSSID=" + bssid 6059 + " target=" + target); 6060 } 6061 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 6062 handleNetworkDisconnect(); 6063 transitionTo(mDisconnectedState); 6064 } 6065 break; 6066 case WifiMonitor.SSID_TEMP_DISABLED: 6067 // Auth error while roaming 6068 int netId = lookupFrameworkNetworkId(message.arg1); 6069 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 6070 + " id=" + netId 6071 + " isRoaming=" + isRoaming() 6072 + " roam=" + mAutoRoaming); 6073 if (netId == mLastNetworkId) { 6074 config = getCurrentWifiConfiguration(); 6075 if (config != null) { 6076 mWifiDiagnostics.captureBugReportData( 6077 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 6078 } 6079 handleNetworkDisconnect(); 6080 transitionTo(mDisconnectingState); 6081 } 6082 return NOT_HANDLED; 6083 case CMD_START_SCAN: 6084 deferMessage(message); 6085 break; 6086 default: 6087 return NOT_HANDLED; 6088 } 6089 return HANDLED; 6090 } 6091 6092 @Override 6093 public void exit() { 6094 logd("WifiStateMachine: Leaving Roaming state"); 6095 } 6096 } 6097 6098 class ConnectedState extends State { 6099 @Override 6100 public void enter() { 6101 updateDefaultRouteMacAddress(1000); 6102 if (mVerboseLoggingEnabled) { 6103 log("Enter ConnectedState " 6104 + " mScreenOn=" + mScreenOn); 6105 } 6106 6107 mWifiConnectivityManager.handleConnectionStateChanged( 6108 WifiConnectivityManager.WIFI_STATE_CONNECTED); 6109 registerConnected(); 6110 lastConnectAttemptTimestamp = 0; 6111 targetWificonfiguration = null; 6112 // Paranoia 6113 mIsLinkDebouncing = false; 6114 6115 // Not roaming anymore 6116 mAutoRoaming = false; 6117 6118 if (testNetworkDisconnect) { 6119 testNetworkDisconnectCounter++; 6120 logd("ConnectedState Enter start disconnect test " + 6121 testNetworkDisconnectCounter); 6122 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 6123 testNetworkDisconnectCounter, 0), 15000); 6124 } 6125 6126 mLastDriverRoamAttempt = 0; 6127 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6128 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6129 } 6130 @Override 6131 public boolean processMessage(Message message) { 6132 WifiConfiguration config = null; 6133 logStateAndMessage(message, this); 6134 6135 switch (message.what) { 6136 case CMD_UNWANTED_NETWORK: 6137 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6138 mWifiNative.disconnect(); 6139 transitionTo(mDisconnectingState); 6140 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6141 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6142 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6143 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6144 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6145 config = getCurrentWifiConfiguration(); 6146 if (config != null) { 6147 // Disable autojoin 6148 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6149 mWifiConfigManager.setNetworkValidatedInternetAccess( 6150 config.networkId, false); 6151 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6152 WifiConfiguration.NetworkSelectionStatus 6153 .DISABLED_NO_INTERNET); 6154 } 6155 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6156 config.networkId); 6157 } 6158 } 6159 return HANDLED; 6160 case CMD_NETWORK_STATUS: 6161 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6162 config = getCurrentWifiConfiguration(); 6163 if (config != null) { 6164 // re-enable autojoin 6165 mWifiConfigManager.setNetworkValidatedInternetAccess( 6166 config.networkId, true); 6167 } 6168 } 6169 return HANDLED; 6170 case CMD_ACCEPT_UNVALIDATED: 6171 boolean accept = (message.arg1 != 0); 6172 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6173 return HANDLED; 6174 case CMD_TEST_NETWORK_DISCONNECT: 6175 // Force a disconnect 6176 if (message.arg1 == testNetworkDisconnectCounter) { 6177 mWifiNative.disconnect(); 6178 } 6179 break; 6180 case CMD_ASSOCIATED_BSSID: 6181 // ASSOCIATING to a new BSSID while already connected, indicates 6182 // that driver is roaming 6183 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6184 return NOT_HANDLED; 6185 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6186 long lastRoam = 0; 6187 reportConnectionAttemptEnd( 6188 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6189 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6190 if (mLastDriverRoamAttempt != 0) { 6191 // Calculate time since last driver roam attempt 6192 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6193 mLastDriverRoamAttempt = 0; 6194 } 6195 if (unexpectedDisconnectedReason(message.arg2)) { 6196 mWifiDiagnostics.captureBugReportData( 6197 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6198 } 6199 config = getCurrentWifiConfiguration(); 6200 if (mEnableLinkDebouncing 6201 && mScreenOn 6202 && !isLinkDebouncing() 6203 && config != null 6204 && config.getNetworkSelectionStatus().isNetworkEnabled() 6205 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6206 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6207 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6208 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6209 && mWifiInfo.getRssi() > 6210 mThresholdQualifiedRssi5) 6211 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6212 && mWifiInfo.getRssi() > 6213 mThresholdQualifiedRssi5))) { 6214 // Start de-bouncing the L2 disconnection: 6215 // this L2 disconnection might be spurious. 6216 // Hence we allow 4 seconds for the state machine to try 6217 // to reconnect, go thru the 6218 // roaming cycle and enter Obtaining IP address 6219 // before signalling the disconnect to ConnectivityService and L3 6220 startScanForConfiguration(getCurrentWifiConfiguration()); 6221 mIsLinkDebouncing = true; 6222 6223 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6224 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6225 if (mVerboseLoggingEnabled) { 6226 log("NETWORK_DISCONNECTION_EVENT in connected state" 6227 + " BSSID=" + mWifiInfo.getBSSID() 6228 + " RSSI=" + mWifiInfo.getRssi() 6229 + " freq=" + mWifiInfo.getFrequency() 6230 + " reason=" + message.arg2 6231 + " -> debounce"); 6232 } 6233 return HANDLED; 6234 } else { 6235 if (mVerboseLoggingEnabled) { 6236 log("NETWORK_DISCONNECTION_EVENT in connected state" 6237 + " BSSID=" + mWifiInfo.getBSSID() 6238 + " RSSI=" + mWifiInfo.getRssi() 6239 + " freq=" + mWifiInfo.getFrequency() 6240 + " was debouncing=" + isLinkDebouncing() 6241 + " reason=" + message.arg2 6242 + " Network Selection Status=" + (config == null ? "Unavailable" 6243 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6244 } 6245 } 6246 break; 6247 case CMD_START_ROAM: 6248 // Clear the driver roam indication since we are attempting a framework roam 6249 mLastDriverRoamAttempt = 0; 6250 6251 /* Connect command coming from auto-join */ 6252 int netId = message.arg1; 6253 ScanResult candidate = (ScanResult)message.obj; 6254 String bssid = SUPPLICANT_BSSID_ANY; 6255 if (candidate != null) { 6256 bssid = candidate.BSSID; 6257 } 6258 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6259 if (config == null) { 6260 loge("CMD_START_ROAM and no config, bail out..."); 6261 break; 6262 } 6263 6264 setTargetBssid(config, bssid); 6265 mTargetNetworkId = netId; 6266 6267 logd("CMD_START_ROAM sup state " 6268 + mSupplicantStateTracker.getSupplicantStateName() 6269 + " my state " + getCurrentState().getName() 6270 + " nid=" + Integer.toString(netId) 6271 + " config " + config.configKey() 6272 + " targetRoamBSSID " + mTargetRoamBSSID); 6273 6274 reportConnectionAttemptStart(config, mTargetRoamBSSID, 6275 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6276 if (mWifiSupplicantControl.roamToNetwork(config)) { 6277 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6278 targetWificonfiguration = config; 6279 mAutoRoaming = true; 6280 transitionTo(mRoamingState); 6281 } else { 6282 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6283 reportConnectionAttemptEnd( 6284 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6285 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6286 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6287 WifiManager.ERROR); 6288 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6289 break; 6290 } 6291 break; 6292 case CMD_START_IP_PACKET_OFFLOAD: { 6293 int slot = message.arg1; 6294 int intervalSeconds = message.arg2; 6295 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6296 byte[] dstMac; 6297 try { 6298 InetAddress gateway = RouteInfo.selectBestRoute( 6299 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6300 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6301 dstMac = macAddressFromString(dstMacStr); 6302 } catch (NullPointerException|IllegalArgumentException e) { 6303 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6304 mNetworkAgent.onPacketKeepaliveEvent(slot, 6305 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6306 break; 6307 } 6308 pkt.dstMac = dstMac; 6309 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6310 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6311 break; 6312 } 6313 default: 6314 return NOT_HANDLED; 6315 } 6316 return HANDLED; 6317 } 6318 6319 @Override 6320 public void exit() { 6321 logd("WifiStateMachine: Leaving Connected state"); 6322 mWifiConnectivityManager.handleConnectionStateChanged( 6323 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6324 6325 mLastDriverRoamAttempt = 0; 6326 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6327 } 6328 } 6329 6330 class DisconnectingState extends State { 6331 6332 @Override 6333 public void enter() { 6334 6335 if (mVerboseLoggingEnabled) { 6336 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6337 } 6338 6339 // Make sure we disconnect: we enter this state prior to connecting to a new 6340 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6341 // event which in this case will be indicating that supplicant started to associate. 6342 // In some cases supplicant doesn't ignore the connect requests (it might not 6343 // find the target SSID in its cache), 6344 // Therefore we end up stuck that state, hence the need for the watchdog. 6345 disconnectingWatchdogCount++; 6346 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6347 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6348 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6349 } 6350 6351 @Override 6352 public boolean processMessage(Message message) { 6353 logStateAndMessage(message, this); 6354 switch (message.what) { 6355 case CMD_SET_OPERATIONAL_MODE: 6356 if (message.arg1 != CONNECT_MODE) { 6357 deferMessage(message); 6358 } 6359 break; 6360 case CMD_START_SCAN: 6361 deferMessage(message); 6362 return HANDLED; 6363 case CMD_DISCONNECT: 6364 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6365 break; 6366 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6367 if (disconnectingWatchdogCount == message.arg1) { 6368 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6369 handleNetworkDisconnect(); 6370 transitionTo(mDisconnectedState); 6371 } 6372 break; 6373 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6374 /** 6375 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6376 * we have missed the network disconnection, transition to mDisconnectedState 6377 * and handle the rest of the events there 6378 */ 6379 deferMessage(message); 6380 handleNetworkDisconnect(); 6381 transitionTo(mDisconnectedState); 6382 break; 6383 default: 6384 return NOT_HANDLED; 6385 } 6386 return HANDLED; 6387 } 6388 } 6389 6390 class DisconnectedState extends State { 6391 @Override 6392 public void enter() { 6393 // We dont scan frequently if this is a temporary disconnect 6394 // due to p2p 6395 if (mTemporarilyDisconnectWifi) { 6396 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6397 return; 6398 } 6399 6400 if (mVerboseLoggingEnabled) { 6401 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6402 } 6403 6404 /** clear the roaming state, if we were roaming, we failed */ 6405 mAutoRoaming = false; 6406 6407 mWifiConnectivityManager.handleConnectionStateChanged( 6408 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6409 6410 /** 6411 * If we have no networks saved, the supplicant stops doing the periodic scan. 6412 * The scans are useful to notify the user of the presence of an open network. 6413 * Note that these are not wake up scans. 6414 */ 6415 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6416 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6417 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6418 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6419 } 6420 6421 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6422 } 6423 @Override 6424 public boolean processMessage(Message message) { 6425 boolean ret = HANDLED; 6426 6427 logStateAndMessage(message, this); 6428 6429 switch (message.what) { 6430 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6431 if (mP2pConnected.get()) break; 6432 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6433 mWifiConfigManager.getSavedNetworks().size() == 0) { 6434 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6435 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6436 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6437 } 6438 break; 6439 case WifiManager.FORGET_NETWORK: 6440 case CMD_REMOVE_NETWORK: 6441 case CMD_REMOVE_APP_CONFIGURATIONS: 6442 case CMD_REMOVE_USER_CONFIGURATIONS: 6443 // Set up a delayed message here. After the forget/remove is handled 6444 // the handled delayed message will determine if there is a need to 6445 // scan and continue 6446 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6447 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6448 ret = NOT_HANDLED; 6449 break; 6450 case CMD_SET_OPERATIONAL_MODE: 6451 if (message.arg1 != CONNECT_MODE) { 6452 mOperationalMode = message.arg1; 6453 if (mOperationalMode == DISABLED_MODE) { 6454 transitionTo(mSupplicantStoppingState); 6455 } else if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6456 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6457 setWifiState(WIFI_STATE_DISABLED); 6458 transitionTo(mScanModeState); 6459 } else if (mOperationalMode == SCAN_ONLY_MODE) { 6460 transitionTo(mScanModeState); 6461 } 6462 } 6463 break; 6464 case CMD_DISCONNECT: 6465 mWifiNative.disconnect(); 6466 break; 6467 /* Ignore network disconnect */ 6468 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6469 // Interpret this as an L2 connection failure 6470 break; 6471 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6472 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6473 if (mVerboseLoggingEnabled) { 6474 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6475 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6476 + " debouncing=" + isLinkDebouncing()); 6477 } 6478 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6479 /* ConnectModeState does the rest of the handling */ 6480 ret = NOT_HANDLED; 6481 break; 6482 case CMD_START_SCAN: 6483 if (!checkOrDeferScanAllowed(message)) { 6484 // The scan request was rescheduled 6485 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6486 return HANDLED; 6487 } 6488 6489 ret = NOT_HANDLED; 6490 break; 6491 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6492 NetworkInfo info = (NetworkInfo) message.obj; 6493 mP2pConnected.set(info.isConnected()); 6494 if (mP2pConnected.get()) { 6495 int defaultInterval = mContext.getResources().getInteger( 6496 R.integer.config_wifi_scan_interval_p2p_connected); 6497 long scanIntervalMs = mFacade.getLongSetting(mContext, 6498 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 6499 defaultInterval); 6500 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 6501 } else if (mWifiConfigManager.getSavedNetworks().size() == 0) { 6502 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6503 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6504 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6505 } 6506 break; 6507 case CMD_RECONNECT: 6508 case CMD_REASSOCIATE: 6509 if (mTemporarilyDisconnectWifi) { 6510 // Drop a third party reconnect/reassociate if STA is 6511 // temporarily disconnected for p2p 6512 break; 6513 } else { 6514 // ConnectModeState handles it 6515 ret = NOT_HANDLED; 6516 } 6517 break; 6518 case CMD_SCREEN_STATE_CHANGED: 6519 handleScreenStateChanged(message.arg1 != 0); 6520 break; 6521 default: 6522 ret = NOT_HANDLED; 6523 } 6524 return ret; 6525 } 6526 6527 @Override 6528 public void exit() { 6529 mWifiConnectivityManager.handleConnectionStateChanged( 6530 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6531 } 6532 } 6533 6534 class WpsRunningState extends State { 6535 // Tracks the source to provide a reply 6536 private Message mSourceMessage; 6537 @Override 6538 public void enter() { 6539 mSourceMessage = Message.obtain(getCurrentMessage()); 6540 } 6541 @Override 6542 public boolean processMessage(Message message) { 6543 logStateAndMessage(message, this); 6544 6545 switch (message.what) { 6546 case WifiMonitor.WPS_SUCCESS_EVENT: 6547 // Ignore intermediate success, wait for full connection 6548 break; 6549 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6550 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6551 mSourceMessage.recycle(); 6552 mSourceMessage = null; 6553 deferMessage(message); 6554 transitionTo(mDisconnectedState); 6555 break; 6556 case WifiMonitor.WPS_OVERLAP_EVENT: 6557 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6558 WifiManager.WPS_OVERLAP_ERROR); 6559 mSourceMessage.recycle(); 6560 mSourceMessage = null; 6561 transitionTo(mDisconnectedState); 6562 break; 6563 case WifiMonitor.WPS_FAIL_EVENT: 6564 // Arg1 has the reason for the failure 6565 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6566 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6567 mSourceMessage.recycle(); 6568 mSourceMessage = null; 6569 transitionTo(mDisconnectedState); 6570 } else { 6571 if (mVerboseLoggingEnabled) { 6572 log("Ignore unspecified fail event during WPS connection"); 6573 } 6574 } 6575 break; 6576 case WifiMonitor.WPS_TIMEOUT_EVENT: 6577 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6578 WifiManager.WPS_TIMED_OUT); 6579 mSourceMessage.recycle(); 6580 mSourceMessage = null; 6581 transitionTo(mDisconnectedState); 6582 break; 6583 case WifiManager.START_WPS: 6584 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6585 break; 6586 case WifiManager.CANCEL_WPS: 6587 if (mWifiNative.cancelWps()) { 6588 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6589 } else { 6590 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6591 } 6592 transitionTo(mDisconnectedState); 6593 break; 6594 /** 6595 * Defer all commands that can cause connections to a different network 6596 * or put the state machine out of connect mode 6597 */ 6598 case CMD_SET_OPERATIONAL_MODE: 6599 case WifiManager.CONNECT_NETWORK: 6600 case CMD_ENABLE_NETWORK: 6601 case CMD_RECONNECT: 6602 case CMD_REASSOCIATE: 6603 deferMessage(message); 6604 break; 6605 case CMD_START_CONNECT: 6606 case CMD_START_ROAM: 6607 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6608 return HANDLED; 6609 case CMD_START_SCAN: 6610 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6611 return HANDLED; 6612 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6613 if (mVerboseLoggingEnabled) log("Network connection lost"); 6614 handleNetworkDisconnect(); 6615 break; 6616 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6617 if (mVerboseLoggingEnabled) { 6618 log("Ignore Assoc reject event during WPS Connection"); 6619 } 6620 break; 6621 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6622 // Disregard auth failure events during WPS connection. The 6623 // EAP sequence is retried several times, and there might be 6624 // failures (especially for wps pin). We will get a WPS_XXX 6625 // event at the end of the sequence anyway. 6626 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6627 break; 6628 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6629 // Throw away supplicant state changes when WPS is running. 6630 // We will start getting supplicant state changes once we get 6631 // a WPS success or failure 6632 break; 6633 default: 6634 return NOT_HANDLED; 6635 } 6636 return HANDLED; 6637 } 6638 6639 @Override 6640 public void exit() { 6641 mWifiConfigManager.loadFromStore(); 6642 } 6643 } 6644 6645 class SoftApState extends State { 6646 private SoftApManager mSoftApManager; 6647 6648 private class SoftApListener implements SoftApManager.Listener { 6649 @Override 6650 public void onStateChanged(int state, int reason) { 6651 if (state == WIFI_AP_STATE_DISABLED) { 6652 sendMessage(CMD_AP_STOPPED); 6653 } else if (state == WIFI_AP_STATE_FAILED) { 6654 sendMessage(CMD_START_AP_FAILURE); 6655 } 6656 6657 setWifiApState(state, reason); 6658 } 6659 } 6660 6661 @Override 6662 public void enter() { 6663 final Message message = getCurrentMessage(); 6664 if (message.what != CMD_START_AP) { 6665 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6666 } 6667 6668 IApInterface apInterface = setupDriverForSoftAp(); 6669 if (apInterface == null) { 6670 setWifiApState(WIFI_AP_STATE_FAILED, 6671 WifiManager.SAP_START_FAILURE_GENERAL); 6672 /** 6673 * Transition to InitialState to reset the 6674 * driver/HAL back to the initial state. 6675 */ 6676 transitionTo(mInitialState); 6677 return; 6678 } 6679 6680 WifiConfiguration config = (WifiConfiguration) message.obj; 6681 6682 checkAndSetConnectivityInstance(); 6683 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6684 new SoftApListener(), 6685 apInterface, 6686 config); 6687 mSoftApManager.start(); 6688 } 6689 6690 @Override 6691 public void exit() { 6692 mSoftApManager = null; 6693 } 6694 6695 @Override 6696 public boolean processMessage(Message message) { 6697 logStateAndMessage(message, this); 6698 6699 switch(message.what) { 6700 case CMD_START_AP: 6701 /* Ignore start command when it is starting/started. */ 6702 break; 6703 case CMD_STOP_AP: 6704 mSoftApManager.stop(); 6705 break; 6706 case CMD_START_AP_FAILURE: 6707 transitionTo(mInitialState); 6708 break; 6709 case CMD_AP_STOPPED: 6710 transitionTo(mInitialState); 6711 break; 6712 default: 6713 return NOT_HANDLED; 6714 } 6715 return HANDLED; 6716 } 6717 } 6718 6719 /** 6720 * State machine initiated requests can have replyTo set to null indicating 6721 * there are no recepients, we ignore those reply actions. 6722 */ 6723 private void replyToMessage(Message msg, int what) { 6724 if (msg.replyTo == null) return; 6725 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6726 mReplyChannel.replyToMessage(msg, dstMsg); 6727 } 6728 6729 private void replyToMessage(Message msg, int what, int arg1) { 6730 if (msg.replyTo == null) return; 6731 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6732 dstMsg.arg1 = arg1; 6733 mReplyChannel.replyToMessage(msg, dstMsg); 6734 } 6735 6736 private void replyToMessage(Message msg, int what, Object obj) { 6737 if (msg.replyTo == null) return; 6738 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6739 dstMsg.obj = obj; 6740 mReplyChannel.replyToMessage(msg, dstMsg); 6741 } 6742 6743 /** 6744 * arg2 on the source message has a unique id that needs to be retained in replies 6745 * to match the request 6746 * <p>see WifiManager for details 6747 */ 6748 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6749 Message msg = Message.obtain(); 6750 msg.what = what; 6751 msg.arg2 = srcMsg.arg2; 6752 return msg; 6753 } 6754 6755 /** 6756 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6757 * @param config Must have a WifiConfiguration object to succeed 6758 */ 6759 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6760 WifiConfiguration config) { 6761 if (config != null && config.preSharedKey != null) { 6762 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6763 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6764 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6765 wifiCredentialEventType); 6766 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6767 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6768 } 6769 } 6770 6771 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6772 if (targetWificonfiguration == null 6773 || targetWificonfiguration.networkId 6774 == lookupFrameworkNetworkId(requestData.networkId)) { 6775 logd("id matches targetWifiConfiguration"); 6776 } else { 6777 logd("id does not match targetWifiConfiguration"); 6778 return; 6779 } 6780 6781 String response = 6782 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6783 if (response == null) { 6784 mWifiNative.simAuthFailedResponse(requestData.networkId); 6785 } else { 6786 logv("Supplicant Response -" + response); 6787 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6788 } 6789 } 6790 6791 void handle3GAuthRequest(SimAuthRequestData requestData) { 6792 if (targetWificonfiguration == null 6793 || targetWificonfiguration.networkId 6794 == lookupFrameworkNetworkId(requestData.networkId)) { 6795 logd("id matches targetWifiConfiguration"); 6796 } else { 6797 logd("id does not match targetWifiConfiguration"); 6798 return; 6799 } 6800 6801 SimAuthResponseData response = 6802 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6803 if (response != null) { 6804 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6805 } else { 6806 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6807 } 6808 } 6809 6810 /** 6811 * Automatically connect to the network specified 6812 * 6813 * @param networkId ID of the network to connect to 6814 * @param bssid BSSID of the network 6815 */ 6816 public void startConnectToNetwork(int networkId, String bssid) { 6817 synchronized (mWifiReqCountLock) { 6818 if (hasConnectionRequests()) { 6819 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6820 } 6821 } 6822 } 6823 6824 /** 6825 * Automatically roam to the network specified 6826 * 6827 * @param networkId ID of the network to roam to 6828 * @param scanResult scan result which identifies the network to roam to 6829 */ 6830 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6831 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6832 } 6833 6834 /** 6835 * Dynamically turn on/off WifiConnectivityManager 6836 * 6837 * @param enabled true-enable; false-disable 6838 */ 6839 public void enableWifiConnectivityManager(boolean enabled) { 6840 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6841 } 6842 6843 /** 6844 * @param reason reason code from supplicant on network disconnected event 6845 * @return true if this is a suspicious disconnect 6846 */ 6847 static boolean unexpectedDisconnectedReason(int reason) { 6848 return reason == 2 // PREV_AUTH_NOT_VALID 6849 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6850 || reason == 7 // FRAME_FROM_NONASSOC_STA 6851 || reason == 8 // STA_HAS_LEFT 6852 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6853 || reason == 14 // MICHAEL_MIC_FAILURE 6854 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6855 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6856 || reason == 18 // GROUP_CIPHER_NOT_VALID 6857 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6858 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6859 || reason == 34; // DISASSOC_LOW_ACK 6860 } 6861 6862 /** 6863 * Update WifiMetrics before dumping 6864 */ 6865 void updateWifiMetrics() { 6866 int numSavedNetworks = mWifiConfigManager.getConfiguredNetworks().size(); 6867 int numOpenNetworks = 0; 6868 int numPersonalNetworks = 0; 6869 int numEnterpriseNetworks = 0; 6870 int numNetworksAddedByUser = 0; 6871 int numNetworksAddedByApps = 0; 6872 int numHiddenNetworks = 0; 6873 int numPasspoint = 0; 6874 for (WifiConfiguration config : mWifiConfigManager.getSavedNetworks()) { 6875 if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE)) { 6876 numOpenNetworks++; 6877 } else if (config.isEnterprise()) { 6878 numEnterpriseNetworks++; 6879 } else { 6880 numPersonalNetworks++; 6881 } 6882 if (config.selfAdded) { 6883 numNetworksAddedByUser++; 6884 } else { 6885 numNetworksAddedByApps++; 6886 } 6887 if (config.hiddenSSID) { 6888 numHiddenNetworks++; 6889 } 6890 if (config.isPasspoint()) { 6891 numPasspoint++; 6892 } 6893 } 6894 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 6895 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 6896 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 6897 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 6898 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 6899 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 6900 mWifiMetrics.setNumHiddenNetworks(numHiddenNetworks); 6901 mWifiMetrics.setNumPasspointNetworks(numPasspoint); 6902 } 6903 6904 private static String getLinkPropertiesSummary(LinkProperties lp) { 6905 List<String> attributes = new ArrayList<>(6); 6906 if (lp.hasIPv4Address()) { 6907 attributes.add("v4"); 6908 } 6909 if (lp.hasIPv4DefaultRoute()) { 6910 attributes.add("v4r"); 6911 } 6912 if (lp.hasIPv4DnsServer()) { 6913 attributes.add("v4dns"); 6914 } 6915 if (lp.hasGlobalIPv6Address()) { 6916 attributes.add("v6"); 6917 } 6918 if (lp.hasIPv6DefaultRoute()) { 6919 attributes.add("v6r"); 6920 } 6921 if (lp.hasIPv6DnsServer()) { 6922 attributes.add("v6dns"); 6923 } 6924 6925 return TextUtils.join(" ", attributes); 6926 } 6927 6928 /** 6929 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6930 * This should match the network config framework is attempting to connect to. 6931 */ 6932 private String getTargetSsid() { 6933 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6934 if (currentConfig != null) { 6935 return currentConfig.SSID; 6936 } 6937 return null; 6938 } 6939 6940 private void p2pSendMessage(int what) { 6941 if (mWifiP2pChannel != null) { 6942 mWifiP2pChannel.sendMessage(what); 6943 } 6944 } 6945 6946 private void p2pSendMessage(int what, int arg1) { 6947 if (mWifiP2pChannel != null) { 6948 mWifiP2pChannel.sendMessage(what, arg1); 6949 } 6950 } 6951 6952 /** 6953 * Check if there is any connection request for WiFi network. 6954 * Note, caller of this helper function must acquire mWifiReqCountLock. 6955 */ 6956 private boolean hasConnectionRequests() { 6957 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6958 } 6959 6960 /** 6961 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6962 */ 6963 public boolean getIpReachabilityDisconnectEnabled() { 6964 return mIpReachabilityDisconnectEnabled; 6965 } 6966 6967 /** 6968 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6969 */ 6970 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6971 mIpReachabilityDisconnectEnabled = enabled; 6972 } 6973} 6974