WifiStateMachine.java revision a26a8b33616c94859ba33f33403794cf636baa54
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.wifi; 18 19import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLED; 20import static android.net.wifi.WifiManager.WIFI_AP_STATE_DISABLING; 21import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED; 22import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLING; 23import static android.net.wifi.WifiManager.WIFI_AP_STATE_FAILED; 24import static android.net.wifi.WifiManager.WIFI_STATE_DISABLED; 25import static android.net.wifi.WifiManager.WIFI_STATE_DISABLING; 26import static android.net.wifi.WifiManager.WIFI_STATE_ENABLED; 27import static android.net.wifi.WifiManager.WIFI_STATE_ENABLING; 28import static android.net.wifi.WifiManager.WIFI_STATE_UNKNOWN; 29 30import android.Manifest; 31import android.app.ActivityManager; 32import android.app.PendingIntent; 33import android.bluetooth.BluetoothAdapter; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.pm.ApplicationInfo; 39import android.content.pm.IPackageManager; 40import android.content.pm.PackageManager; 41import android.database.ContentObserver; 42import android.net.ConnectivityManager; 43import android.net.DhcpResults; 44import android.net.IpConfiguration; 45import android.net.LinkProperties; 46import android.net.Network; 47import android.net.NetworkAgent; 48import android.net.NetworkCapabilities; 49import android.net.NetworkFactory; 50import android.net.NetworkInfo; 51import android.net.NetworkInfo.DetailedState; 52import android.net.NetworkMisc; 53import android.net.NetworkRequest; 54import android.net.NetworkUtils; 55import android.net.RouteInfo; 56import android.net.StaticIpConfiguration; 57import android.net.TrafficStats; 58import android.net.dhcp.DhcpClient; 59import android.net.ip.IpManager; 60import android.net.wifi.IApInterface; 61import android.net.wifi.IClientInterface; 62import android.net.wifi.RssiPacketCountInfo; 63import android.net.wifi.ScanResult; 64import android.net.wifi.ScanSettings; 65import android.net.wifi.SupplicantState; 66import android.net.wifi.WifiChannel; 67import android.net.wifi.WifiConfiguration; 68import android.net.wifi.WifiConnectionStatistics; 69import android.net.wifi.WifiEnterpriseConfig; 70import android.net.wifi.WifiInfo; 71import android.net.wifi.WifiLinkLayerStats; 72import android.net.wifi.WifiManager; 73import android.net.wifi.WifiScanner; 74import android.net.wifi.WifiSsid; 75import android.net.wifi.WpsInfo; 76import android.net.wifi.WpsResult; 77import android.net.wifi.WpsResult.Status; 78import android.net.wifi.p2p.IWifiP2pManager; 79import android.os.BatteryStats; 80import android.os.Binder; 81import android.os.Bundle; 82import android.os.IBinder; 83import android.os.INetworkManagementService; 84import android.os.Looper; 85import android.os.Message; 86import android.os.Messenger; 87import android.os.PowerManager; 88import android.os.Process; 89import android.os.RemoteException; 90import android.os.UserHandle; 91import android.os.UserManager; 92import android.os.WorkSource; 93import android.provider.Settings; 94import android.telephony.TelephonyManager; 95import android.text.TextUtils; 96import android.util.Log; 97import android.util.SparseArray; 98 99import com.android.internal.R; 100import com.android.internal.annotations.GuardedBy; 101import com.android.internal.annotations.VisibleForTesting; 102import com.android.internal.app.IBatteryStats; 103import com.android.internal.util.AsyncChannel; 104import com.android.internal.util.MessageUtils; 105import com.android.internal.util.Protocol; 106import com.android.internal.util.State; 107import com.android.internal.util.StateMachine; 108import com.android.server.connectivity.KeepalivePacketData; 109import com.android.server.wifi.hotspot2.AnqpEvent; 110import com.android.server.wifi.hotspot2.IconEvent; 111import com.android.server.wifi.hotspot2.NetworkDetail; 112import com.android.server.wifi.hotspot2.PasspointManager; 113import com.android.server.wifi.hotspot2.Utils; 114import com.android.server.wifi.hotspot2.WnmData; 115import com.android.server.wifi.p2p.WifiP2pServiceImpl; 116import com.android.server.wifi.util.NativeUtil; 117import com.android.server.wifi.util.TelephonyUtil; 118import com.android.server.wifi.util.TelephonyUtil.SimAuthRequestData; 119import com.android.server.wifi.util.TelephonyUtil.SimAuthResponseData; 120 121import java.io.BufferedReader; 122import java.io.FileDescriptor; 123import java.io.FileNotFoundException; 124import java.io.FileReader; 125import java.io.IOException; 126import java.io.PrintWriter; 127import java.net.Inet4Address; 128import java.net.InetAddress; 129import java.util.ArrayList; 130import java.util.Arrays; 131import java.util.HashSet; 132import java.util.LinkedList; 133import java.util.List; 134import java.util.Queue; 135import java.util.Set; 136import java.util.concurrent.atomic.AtomicBoolean; 137import java.util.concurrent.atomic.AtomicInteger; 138 139/** 140 * TODO: 141 * Deprecate WIFI_STATE_UNKNOWN 142 */ 143 144/** 145 * Track the state of Wifi connectivity. All event handling is done here, 146 * and all changes in connectivity state are initiated here. 147 * 148 * Wi-Fi now supports three modes of operation: Client, SoftAp and p2p 149 * In the current implementation, we support concurrent wifi p2p and wifi operation. 150 * The WifiStateMachine handles SoftAp and Client operations while WifiP2pService 151 * handles p2p operation. 152 * 153 * @hide 154 */ 155public class WifiStateMachine extends StateMachine implements WifiNative.WifiRssiEventHandler, 156 WifiMulticastLockManager.FilterController { 157 158 private static final String NETWORKTYPE = "WIFI"; 159 private static final String NETWORKTYPE_UNTRUSTED = "WIFI_UT"; 160 @VisibleForTesting public static final short NUM_LOG_RECS_NORMAL = 100; 161 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE_LOW_MEMORY = 200; 162 @VisibleForTesting public static final short NUM_LOG_RECS_VERBOSE = 3000; 163 private static final String TAG = "WifiStateMachine"; 164 165 private static final int ONE_HOUR_MILLI = 1000 * 60 * 60; 166 167 private static final String GOOGLE_OUI = "DA-A1-19"; 168 169 private static final String EXTRA_OSU_ICON_QUERY_BSSID = "BSSID"; 170 private static final String EXTRA_OSU_ICON_QUERY_FILENAME = "FILENAME"; 171 172 private boolean mVerboseLoggingEnabled = false; 173 174 /* debug flag, indicating if handling of ASSOCIATION_REJECT ended up blacklisting 175 * the corresponding BSSID. 176 */ 177 private boolean didBlackListBSSID = false; 178 179 /** 180 * Log with error attribute 181 * 182 * @param s is string log 183 */ 184 @Override 185 protected void loge(String s) { 186 Log.e(getName(), s); 187 } 188 @Override 189 protected void logd(String s) { 190 Log.d(getName(), s); 191 } 192 @Override 193 protected void log(String s) { 194 Log.d(getName(), s); 195 } 196 private WifiMetrics mWifiMetrics; 197 private WifiInjector mWifiInjector; 198 private WifiMonitor mWifiMonitor; 199 private WifiNative mWifiNative; 200 private WifiConfigManager mWifiConfigManager; 201 private WifiConnectivityManager mWifiConnectivityManager; 202 private WifiNetworkSelector mWifiNetworkSelector; 203 private INetworkManagementService mNwService; 204 private IClientInterface mClientInterface; 205 private ConnectivityManager mCm; 206 private BaseWifiDiagnostics mWifiDiagnostics; 207 private WifiApConfigStore mWifiApConfigStore; 208 private final boolean mP2pSupported; 209 private final AtomicBoolean mP2pConnected = new AtomicBoolean(false); 210 private boolean mTemporarilyDisconnectWifi = false; 211 private final String mPrimaryDeviceType; 212 private final Clock mClock; 213 private final PropertyService mPropertyService; 214 private final BuildProperties mBuildProperties; 215 private final WifiCountryCode mCountryCode; 216 // Object holding most recent wifi score report and bad Linkspeed count 217 private final WifiScoreReport mWifiScoreReport; 218 private final PasspointManager mPasspointManager; 219 220 /* Scan results handling */ 221 private List<ScanDetail> mScanResults = new ArrayList<>(); 222 private final Object mScanResultsLock = new Object(); 223 224 // For debug, number of known scan results that were found as part of last scan result event, 225 // as well the number of scans results returned by the supplicant with that message 226 private int mNumScanResultsKnown; 227 private int mNumScanResultsReturned; 228 229 private boolean mScreenOn = false; 230 231 private final String mInterfaceName; 232 233 private int mLastSignalLevel = -1; 234 private String mLastBssid; 235 private int mLastNetworkId; // The network Id we successfully joined 236 private boolean mIsLinkDebouncing = false; 237 private final StateMachineDeathRecipient mDeathRecipient = 238 new StateMachineDeathRecipient(this, CMD_CLIENT_INTERFACE_BINDER_DEATH); 239 private boolean mIpReachabilityDisconnectEnabled = true; 240 241 @Override 242 public void onRssiThresholdBreached(byte curRssi) { 243 if (mVerboseLoggingEnabled) { 244 Log.e(TAG, "onRssiThresholdBreach event. Cur Rssi = " + curRssi); 245 } 246 sendMessage(CMD_RSSI_THRESHOLD_BREACH, curRssi); 247 } 248 249 public void processRssiThreshold(byte curRssi, int reason) { 250 if (curRssi == Byte.MAX_VALUE || curRssi == Byte.MIN_VALUE) { 251 Log.wtf(TAG, "processRssiThreshold: Invalid rssi " + curRssi); 252 return; 253 } 254 for (int i = 0; i < mRssiRanges.length; i++) { 255 if (curRssi < mRssiRanges[i]) { 256 // Assume sorted values(ascending order) for rssi, 257 // bounded by high(127) and low(-128) at extremeties 258 byte maxRssi = mRssiRanges[i]; 259 byte minRssi = mRssiRanges[i-1]; 260 // This value of hw has to be believed as this value is averaged and has breached 261 // the rssi thresholds and raised event to host. This would be eggregious if this 262 // value is invalid 263 mWifiInfo.setRssi(curRssi); 264 updateCapabilities(getCurrentWifiConfiguration()); 265 int ret = startRssiMonitoringOffload(maxRssi, minRssi); 266 Log.d(TAG, "Re-program RSSI thresholds for " + smToString(reason) + 267 ": [" + minRssi + ", " + maxRssi + "], curRssi=" + curRssi + " ret=" + ret); 268 break; 269 } 270 } 271 } 272 273 // Testing various network disconnect cases by sending lots of spurious 274 // disconnect to supplicant 275 private boolean testNetworkDisconnect = false; 276 277 private boolean mEnableRssiPolling = false; 278 private int mRssiPollToken = 0; 279 /* 3 operational states for STA operation: CONNECT_MODE, SCAN_ONLY_MODE, SCAN_ONLY_WIFI_OFF_MODE 280 * In CONNECT_MODE, the STA can scan and connect to an access point 281 * In SCAN_ONLY_MODE, the STA can only scan for access points 282 * In SCAN_ONLY_WIFI_OFF_MODE, the STA can only scan for access points with wifi toggle being off 283 */ 284 private int mOperationalMode = CONNECT_MODE; 285 private boolean mIsScanOngoing = false; 286 private boolean mIsFullScanOngoing = false; 287 288 private final Queue<Message> mBufferedScanMsg = new LinkedList<>(); 289 private static final int UNKNOWN_SCAN_SOURCE = -1; 290 private static final int ADD_OR_UPDATE_SOURCE = -3; 291 292 private static final int SCAN_REQUEST_BUFFER_MAX_SIZE = 10; 293 private static final String CUSTOMIZED_SCAN_SETTING = "customized_scan_settings"; 294 private static final String CUSTOMIZED_SCAN_WORKSOURCE = "customized_scan_worksource"; 295 private static final String SCAN_REQUEST_TIME = "scan_request_time"; 296 297 private boolean mBluetoothConnectionActive = false; 298 299 private PowerManager.WakeLock mSuspendWakeLock; 300 301 /** 302 * Interval in milliseconds between polling for RSSI 303 * and linkspeed information 304 */ 305 private static final int POLL_RSSI_INTERVAL_MSECS = 3000; 306 307 /** 308 * Interval in milliseconds between receiving a disconnect event 309 * while connected to a good AP, and handling the disconnect proper 310 */ 311 private static final int LINK_FLAPPING_DEBOUNCE_MSEC = 4000; 312 313 /** 314 * Delay between supplicant restarts upon failure to establish connection 315 */ 316 private static final int SUPPLICANT_RESTART_INTERVAL_MSECS = 5000; 317 318 /** 319 * Number of times we attempt to restart supplicant 320 */ 321 private static final int SUPPLICANT_RESTART_TRIES = 5; 322 323 /** 324 * Value to set in wpa_supplicant "bssid" field when we don't want to restrict connection to 325 * a specific AP. 326 */ 327 private static final String SUPPLICANT_BSSID_ANY = "any"; 328 329 private int mSupplicantRestartCount = 0; 330 /* Tracks sequence number on stop failure message */ 331 private int mSupplicantStopFailureToken = 0; 332 333 /** 334 * The link properties of the wifi interface. 335 * Do not modify this directly; use updateLinkProperties instead. 336 */ 337 private LinkProperties mLinkProperties; 338 339 /* Tracks sequence number on a periodic scan message */ 340 private int mPeriodicScanToken = 0; 341 342 // Wakelock held during wifi start/stop and driver load/unload 343 private PowerManager.WakeLock mWakeLock; 344 345 private Context mContext; 346 347 private final Object mDhcpResultsLock = new Object(); 348 private DhcpResults mDhcpResults; 349 350 // NOTE: Do not return to clients - use #getWiFiInfoForUid(int) 351 private final WifiInfo mWifiInfo; 352 private NetworkInfo mNetworkInfo; 353 private final NetworkCapabilities mDfltNetworkCapabilities; 354 private SupplicantStateTracker mSupplicantStateTracker; 355 356 private int mWifiLinkLayerStatsSupported = 4; // Temporary disable 357 358 // Whether the state machine goes thru the Disconnecting->Disconnected->ObtainingIpAddress 359 private boolean mAutoRoaming = false; 360 361 // Roaming failure count 362 private int mRoamFailCount = 0; 363 364 // This is the BSSID we are trying to associate to, it can be set to SUPPLICANT_BSSID_ANY 365 // if we havent selected a BSSID for joining. 366 private String mTargetRoamBSSID = SUPPLICANT_BSSID_ANY; 367 // This one is used to track whta is the current target network ID. This is used for error 368 // handling during connection setup since many error message from supplicant does not report 369 // SSID Once connected, it will be set to invalid 370 private int mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 371 private long mLastDriverRoamAttempt = 0; 372 private WifiConfiguration targetWificonfiguration = null; 373 374 boolean isRoaming() { 375 return mAutoRoaming; 376 } 377 378 /** 379 * Method to clear {@link #mTargetRoamBSSID} and reset the the current connected network's 380 * bssid in wpa_supplicant after a roam/connect attempt. 381 */ 382 public boolean clearTargetBssid(String dbg) { 383 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 384 if (config == null) { 385 return false; 386 } 387 String bssid = SUPPLICANT_BSSID_ANY; 388 if (config.BSSID != null) { 389 bssid = config.BSSID; 390 if (mVerboseLoggingEnabled) { 391 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 392 } 393 } 394 if (mVerboseLoggingEnabled) { 395 logd(dbg + " clearTargetBssid " + bssid + " key=" + config.configKey()); 396 } 397 mTargetRoamBSSID = bssid; 398 return mWifiNative.setConfiguredNetworkBSSID(bssid); 399 } 400 401 /** 402 * Set Config's default BSSID (for association purpose) and {@link #mTargetRoamBSSID} 403 * @param config config need set BSSID 404 * @param bssid default BSSID to assocaite with when connect to this network 405 * @return false -- does not change the current default BSSID of the configure 406 * true -- change the current default BSSID of the configur 407 */ 408 private boolean setTargetBssid(WifiConfiguration config, String bssid) { 409 if (config == null || bssid == null) { 410 return false; 411 } 412 if (config.BSSID != null) { 413 bssid = config.BSSID; 414 if (mVerboseLoggingEnabled) { 415 Log.d(TAG, "force BSSID to " + bssid + "due to config"); 416 } 417 } 418 if (mVerboseLoggingEnabled) { 419 Log.d(TAG, "setTargetBssid set to " + bssid + " key=" + config.configKey()); 420 } 421 mTargetRoamBSSID = bssid; 422 config.getNetworkSelectionStatus().setNetworkSelectionBSSID(bssid); 423 return true; 424 } 425 426 private final IpManager mIpManager; 427 428 // Channel for sending replies. 429 private AsyncChannel mReplyChannel = new AsyncChannel(); 430 431 // Used to initiate a connection with WifiP2pService 432 private AsyncChannel mWifiP2pChannel; 433 434 private WifiScanner mWifiScanner; 435 436 @GuardedBy("mWifiReqCountLock") 437 private int mConnectionReqCount = 0; 438 private WifiNetworkFactory mNetworkFactory; 439 @GuardedBy("mWifiReqCountLock") 440 private int mUntrustedReqCount = 0; 441 private UntrustedWifiNetworkFactory mUntrustedNetworkFactory; 442 private WifiNetworkAgent mNetworkAgent; 443 private final Object mWifiReqCountLock = new Object(); 444 445 private byte[] mRssiRanges; 446 447 // Keep track of various statistics, for retrieval by System Apps, i.e. under @SystemApi 448 // We should really persist that into the networkHistory.txt file, and read it back when 449 // WifiStateMachine starts up 450 private WifiConnectionStatistics mWifiConnectionStatistics = new WifiConnectionStatistics(); 451 452 // Used to filter out requests we couldn't possibly satisfy. 453 private final NetworkCapabilities mNetworkCapabilitiesFilter = new NetworkCapabilities(); 454 455 // Provide packet filter capabilities to ConnectivityService. 456 private final NetworkMisc mNetworkMisc = new NetworkMisc(); 457 458 /* The base for wifi message types */ 459 static final int BASE = Protocol.BASE_WIFI; 460 /* Start the supplicant */ 461 static final int CMD_START_SUPPLICANT = BASE + 11; 462 /* Stop the supplicant */ 463 static final int CMD_STOP_SUPPLICANT = BASE + 12; 464 /* Indicates Static IP succeeded */ 465 static final int CMD_STATIC_IP_SUCCESS = BASE + 15; 466 /* Indicates Static IP failed */ 467 static final int CMD_STATIC_IP_FAILURE = BASE + 16; 468 /* Indicates supplicant stop failed */ 469 static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17; 470 /* A delayed message sent to start driver when it fail to come up */ 471 static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19; 472 473 /* Start the soft access point */ 474 static final int CMD_START_AP = BASE + 21; 475 /* Indicates soft ap start failed */ 476 static final int CMD_START_AP_FAILURE = BASE + 22; 477 /* Stop the soft access point */ 478 static final int CMD_STOP_AP = BASE + 23; 479 /* Soft access point teardown is completed. */ 480 static final int CMD_AP_STOPPED = BASE + 24; 481 482 static final int CMD_BLUETOOTH_ADAPTER_STATE_CHANGE = BASE + 31; 483 484 /* Supplicant commands */ 485 /* Is supplicant alive ? */ 486 static final int CMD_PING_SUPPLICANT = BASE + 51; 487 /* Add/update a network configuration */ 488 static final int CMD_ADD_OR_UPDATE_NETWORK = BASE + 52; 489 /* Delete a network */ 490 static final int CMD_REMOVE_NETWORK = BASE + 53; 491 /* Enable a network. The device will attempt a connection to the given network. */ 492 static final int CMD_ENABLE_NETWORK = BASE + 54; 493 /* Save configuration */ 494 static final int CMD_SAVE_CONFIG = BASE + 58; 495 /* Get configured networks */ 496 static final int CMD_GET_CONFIGURED_NETWORKS = BASE + 59; 497 /* Get adaptors */ 498 static final int CMD_GET_SUPPORTED_FEATURES = BASE + 61; 499 /* Get configured networks with real preSharedKey */ 500 static final int CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS = BASE + 62; 501 /* Get Link Layer Stats thru HAL */ 502 static final int CMD_GET_LINK_LAYER_STATS = BASE + 63; 503 /* Supplicant commands after driver start*/ 504 /* Initiate a scan */ 505 static final int CMD_START_SCAN = BASE + 71; 506 /* Set operational mode. CONNECT, SCAN ONLY, SCAN_ONLY with Wi-Fi off mode */ 507 static final int CMD_SET_OPERATIONAL_MODE = BASE + 72; 508 /* Disconnect from a network */ 509 static final int CMD_DISCONNECT = BASE + 73; 510 /* Reconnect to a network */ 511 static final int CMD_RECONNECT = BASE + 74; 512 /* Reassociate to a network */ 513 static final int CMD_REASSOCIATE = BASE + 75; 514 /* Get Connection Statistis */ 515 static final int CMD_GET_CONNECTION_STATISTICS = BASE + 76; 516 517 /* Controls suspend mode optimizations 518 * 519 * When high perf mode is enabled, suspend mode optimizations are disabled 520 * 521 * When high perf mode is disabled, suspend mode optimizations are enabled 522 * 523 * Suspend mode optimizations include: 524 * - packet filtering 525 * - turn off roaming 526 * - DTIM wake up settings 527 */ 528 static final int CMD_SET_HIGH_PERF_MODE = BASE + 77; 529 /* Enables RSSI poll */ 530 static final int CMD_ENABLE_RSSI_POLL = BASE + 82; 531 /* RSSI poll */ 532 static final int CMD_RSSI_POLL = BASE + 83; 533 /* Enable suspend mode optimizations in the driver */ 534 static final int CMD_SET_SUSPEND_OPT_ENABLED = BASE + 86; 535 /* Delayed NETWORK_DISCONNECT */ 536 static final int CMD_DELAYED_NETWORK_DISCONNECT = BASE + 87; 537 /* When there are no saved networks, we do a periodic scan to notify user of 538 * an open network */ 539 static final int CMD_NO_NETWORKS_PERIODIC_SCAN = BASE + 88; 540 /* Test network Disconnection NETWORK_DISCONNECT */ 541 static final int CMD_TEST_NETWORK_DISCONNECT = BASE + 89; 542 543 private int testNetworkDisconnectCounter = 0; 544 545 /* Enable TDLS on a specific MAC address */ 546 static final int CMD_ENABLE_TDLS = BASE + 92; 547 548 /** 549 * Watchdog for protecting against b/16823537 550 * Leave time for 4-way handshake to succeed 551 */ 552 static final int ROAM_GUARD_TIMER_MSEC = 15000; 553 554 int roamWatchdogCount = 0; 555 /* Roam state watchdog */ 556 static final int CMD_ROAM_WATCHDOG_TIMER = BASE + 94; 557 /* Screen change intent handling */ 558 static final int CMD_SCREEN_STATE_CHANGED = BASE + 95; 559 560 /* Disconnecting state watchdog */ 561 static final int CMD_DISCONNECTING_WATCHDOG_TIMER = BASE + 96; 562 563 /* Remove a packages associated configrations */ 564 static final int CMD_REMOVE_APP_CONFIGURATIONS = BASE + 97; 565 566 /* Disable an ephemeral network */ 567 static final int CMD_DISABLE_EPHEMERAL_NETWORK = BASE + 98; 568 569 /* Get matching network */ 570 static final int CMD_GET_MATCHING_CONFIG = BASE + 99; 571 572 /* alert from firmware */ 573 static final int CMD_FIRMWARE_ALERT = BASE + 100; 574 575 /* SIM is removed; reset any cached data for it */ 576 static final int CMD_RESET_SIM_NETWORKS = BASE + 101; 577 578 /* OSU APIs */ 579 static final int CMD_QUERY_OSU_ICON = BASE + 104; 580 581 /* try to match a provider with current network */ 582 static final int CMD_MATCH_PROVIDER_NETWORK = BASE + 105; 583 584 /* Commands from/to the SupplicantStateTracker */ 585 /* Reset the supplicant state tracker */ 586 static final int CMD_RESET_SUPPLICANT_STATE = BASE + 111; 587 588 int disconnectingWatchdogCount = 0; 589 static final int DISCONNECTING_GUARD_TIMER_MSEC = 5000; 590 591 /* P2p commands */ 592 /* We are ok with no response here since we wont do much with it anyway */ 593 public static final int CMD_ENABLE_P2P = BASE + 131; 594 /* In order to shut down supplicant cleanly, we wait till p2p has 595 * been disabled */ 596 public static final int CMD_DISABLE_P2P_REQ = BASE + 132; 597 public static final int CMD_DISABLE_P2P_RSP = BASE + 133; 598 599 /** 600 * Indicates the end of boot process, should be used to trigger load from config store, 601 * initiate connection attempt, etc. 602 * */ 603 static final int CMD_BOOT_COMPLETED = BASE + 134; 604 /** 605 * Initialize the WifiStateMachine. This is currently used to initialize the 606 * {@link HalDeviceManager} module. 607 */ 608 static final int CMD_INITIALIZE = BASE + 135; 609 610 /* We now have a valid IP configuration. */ 611 static final int CMD_IP_CONFIGURATION_SUCCESSFUL = BASE + 138; 612 /* We no longer have a valid IP configuration. */ 613 static final int CMD_IP_CONFIGURATION_LOST = BASE + 139; 614 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 615 static final int CMD_UPDATE_LINKPROPERTIES = BASE + 140; 616 617 /* Supplicant is trying to associate to a given BSSID */ 618 static final int CMD_TARGET_BSSID = BASE + 141; 619 620 /* Reload all networks and reconnect */ 621 static final int CMD_RELOAD_TLS_AND_RECONNECT = BASE + 142; 622 623 static final int CMD_START_CONNECT = BASE + 143; 624 625 private static final int NETWORK_STATUS_UNWANTED_DISCONNECT = 0; 626 private static final int NETWORK_STATUS_UNWANTED_VALIDATION_FAILED = 1; 627 private static final int NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN = 2; 628 629 static final int CMD_UNWANTED_NETWORK = BASE + 144; 630 631 static final int CMD_START_ROAM = BASE + 145; 632 633 static final int CMD_ASSOCIATED_BSSID = BASE + 147; 634 635 static final int CMD_NETWORK_STATUS = BASE + 148; 636 637 /* A layer 3 neighbor on the Wi-Fi link became unreachable. */ 638 static final int CMD_IP_REACHABILITY_LOST = BASE + 149; 639 640 /* Remove a packages associated configrations */ 641 static final int CMD_REMOVE_USER_CONFIGURATIONS = BASE + 152; 642 643 static final int CMD_ACCEPT_UNVALIDATED = BASE + 153; 644 645 /* used to offload sending IP packet */ 646 static final int CMD_START_IP_PACKET_OFFLOAD = BASE + 160; 647 648 /* used to stop offload sending IP packet */ 649 static final int CMD_STOP_IP_PACKET_OFFLOAD = BASE + 161; 650 651 /* used to start rssi monitoring in hw */ 652 static final int CMD_START_RSSI_MONITORING_OFFLOAD = BASE + 162; 653 654 /* used to stop rssi moniroting in hw */ 655 static final int CMD_STOP_RSSI_MONITORING_OFFLOAD = BASE + 163; 656 657 /* used to indicated RSSI threshold breach in hw */ 658 static final int CMD_RSSI_THRESHOLD_BREACH = BASE + 164; 659 660 /* Enable/Disable WifiConnectivityManager */ 661 static final int CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER = BASE + 166; 662 663 /* Enable/Disable AutoJoin when associated */ 664 static final int CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED = BASE + 167; 665 666 /** 667 * Used to handle messages bounced between WifiStateMachine and IpManager. 668 */ 669 static final int CMD_IPV4_PROVISIONING_SUCCESS = BASE + 200; 670 static final int CMD_IPV4_PROVISIONING_FAILURE = BASE + 201; 671 672 /* Push a new APF program to the HAL */ 673 static final int CMD_INSTALL_PACKET_FILTER = BASE + 202; 674 675 /* Enable/disable fallback packet filtering */ 676 static final int CMD_SET_FALLBACK_PACKET_FILTERING = BASE + 203; 677 678 /* Enable/disable Neighbor Discovery offload functionality. */ 679 static final int CMD_CONFIG_ND_OFFLOAD = BASE + 204; 680 681 /* used to indicate that the foreground user was switched */ 682 static final int CMD_USER_SWITCH = BASE + 205; 683 684 /* used to indicate that the foreground user was switched */ 685 static final int CMD_USER_UNLOCK = BASE + 206; 686 687 /* used to indicate that the foreground user was switched */ 688 static final int CMD_USER_STOP = BASE + 207; 689 690 /* Signals that IClientInterface instance underpinning our state is dead. */ 691 private static final int CMD_CLIENT_INTERFACE_BINDER_DEATH = BASE + 250; 692 693 /* Indicates that diagnostics should time out a connection start event. */ 694 private static final int CMD_DIAGS_CONNECT_TIMEOUT = BASE + 251; 695 696 // For message logging. 697 private static final Class[] sMessageClasses = { 698 AsyncChannel.class, WifiStateMachine.class, DhcpClient.class }; 699 private static final SparseArray<String> sSmToString = 700 MessageUtils.findMessageNames(sMessageClasses); 701 702 703 /* Wifi state machine modes of operation */ 704 /* CONNECT_MODE - connect to any 'known' AP when it becomes available */ 705 public static final int CONNECT_MODE = 1; 706 /* SCAN_ONLY_MODE - don't connect to any APs; scan, but only while apps hold lock */ 707 public static final int SCAN_ONLY_MODE = 2; 708 /* SCAN_ONLY_WITH_WIFI_OFF - scan, but don't connect to any APs */ 709 public static final int SCAN_ONLY_WITH_WIFI_OFF_MODE = 3; 710 /* DISABLED_MODE - Don't connect, don't scan, don't be an AP */ 711 public static final int DISABLED_MODE = 4; 712 713 private static final int SUCCESS = 1; 714 private static final int FAILURE = -1; 715 716 /* Tracks if suspend optimizations need to be disabled by DHCP, 717 * screen or due to high perf mode. 718 * When any of them needs to disable it, we keep the suspend optimizations 719 * disabled 720 */ 721 private int mSuspendOptNeedsDisabled = 0; 722 723 private static final int SUSPEND_DUE_TO_DHCP = 1; 724 private static final int SUSPEND_DUE_TO_HIGH_PERF = 1 << 1; 725 private static final int SUSPEND_DUE_TO_SCREEN = 1 << 2; 726 727 /* Tracks if user has enabled suspend optimizations through settings */ 728 private AtomicBoolean mUserWantsSuspendOpt = new AtomicBoolean(true); 729 730 /** 731 * Scan period for the NO_NETWORKS_PERIIDOC_SCAN_FEATURE 732 */ 733 private final int mNoNetworksPeriodicScan; 734 735 /** 736 * Supplicant scan interval in milliseconds. 737 * Comes from {@link Settings.Global#WIFI_SUPPLICANT_SCAN_INTERVAL_MS} or 738 * from the default config if the setting is not set 739 */ 740 private long mSupplicantScanIntervalMs; 741 742 private boolean mEnableAutoJoinWhenAssociated; 743 private int mAlwaysEnableScansWhileAssociated; 744 private final int mThresholdQualifiedRssi24; 745 private final int mThresholdQualifiedRssi5; 746 private final int mThresholdSaturatedRssi24; 747 private final int mThresholdSaturatedRssi5; 748 private final int mThresholdMinimumRssi5; 749 private final int mThresholdMinimumRssi24; 750 private final boolean mEnableLinkDebouncing; 751 private final boolean mEnableChipWakeUpWhenAssociated; 752 private final boolean mEnableRssiPollWhenAssociated; 753 754 int mRunningBeaconCount = 0; 755 756 /* Default parent state */ 757 private State mDefaultState = new DefaultState(); 758 /* Temporary initial state */ 759 private State mInitialState = new InitialState(); 760 /* Driver loaded, waiting for supplicant to start */ 761 private State mSupplicantStartingState = new SupplicantStartingState(); 762 /* Driver loaded and supplicant ready */ 763 private State mSupplicantStartedState = new SupplicantStartedState(); 764 /* Waiting for supplicant to stop and monitor to exit */ 765 private State mSupplicantStoppingState = new SupplicantStoppingState(); 766 /* Wait until p2p is disabled 767 * This is a special state which is entered right after we exit out of DriverStartedState 768 * before transitioning to another state. 769 */ 770 private State mWaitForP2pDisableState = new WaitForP2pDisableState(); 771 /* Scan for networks, no connection will be established */ 772 private State mScanModeState = new ScanModeState(); 773 /* Connecting to an access point */ 774 private State mConnectModeState = new ConnectModeState(); 775 /* Connected at 802.11 (L2) level */ 776 private State mL2ConnectedState = new L2ConnectedState(); 777 /* fetching IP after connection to access point (assoc+auth complete) */ 778 private State mObtainingIpState = new ObtainingIpState(); 779 /* Connected with IP addr */ 780 private State mConnectedState = new ConnectedState(); 781 /* Roaming */ 782 private State mRoamingState = new RoamingState(); 783 /* disconnect issued, waiting for network disconnect confirmation */ 784 private State mDisconnectingState = new DisconnectingState(); 785 /* Network is not connected, supplicant assoc+auth is not complete */ 786 private State mDisconnectedState = new DisconnectedState(); 787 /* Waiting for WPS to be completed*/ 788 private State mWpsRunningState = new WpsRunningState(); 789 /* Soft ap state */ 790 private State mSoftApState = new SoftApState(); 791 792 /** 793 * One of {@link WifiManager#WIFI_STATE_DISABLED}, 794 * {@link WifiManager#WIFI_STATE_DISABLING}, 795 * {@link WifiManager#WIFI_STATE_ENABLED}, 796 * {@link WifiManager#WIFI_STATE_ENABLING}, 797 * {@link WifiManager#WIFI_STATE_UNKNOWN} 798 */ 799 private final AtomicInteger mWifiState = new AtomicInteger(WIFI_STATE_DISABLED); 800 801 /** 802 * One of {@link WifiManager#WIFI_AP_STATE_DISABLED}, 803 * {@link WifiManager#WIFI_AP_STATE_DISABLING}, 804 * {@link WifiManager#WIFI_AP_STATE_ENABLED}, 805 * {@link WifiManager#WIFI_AP_STATE_ENABLING}, 806 * {@link WifiManager#WIFI_AP_STATE_FAILED} 807 */ 808 private final AtomicInteger mWifiApState = new AtomicInteger(WIFI_AP_STATE_DISABLED); 809 810 /** 811 * Work source to use to blame usage on the WiFi service 812 */ 813 public static final WorkSource WIFI_WORK_SOURCE = new WorkSource(Process.WIFI_UID); 814 815 /** 816 * Keep track of whether WIFI is running. 817 */ 818 private boolean mIsRunning = false; 819 820 /** 821 * Keep track of whether we last told the battery stats we had started. 822 */ 823 private boolean mReportedRunning = false; 824 825 /** 826 * Most recently set source of starting WIFI. 827 */ 828 private final WorkSource mRunningWifiUids = new WorkSource(); 829 830 /** 831 * The last reported UIDs that were responsible for starting WIFI. 832 */ 833 private final WorkSource mLastRunningWifiUids = new WorkSource(); 834 835 private TelephonyManager mTelephonyManager; 836 private TelephonyManager getTelephonyManager() { 837 if (mTelephonyManager == null) { 838 mTelephonyManager = mWifiInjector.makeTelephonyManager(); 839 } 840 return mTelephonyManager; 841 } 842 843 private final IBatteryStats mBatteryStats; 844 845 private final String mTcpBufferSizes; 846 847 // Used for debug and stats gathering 848 private static int sScanAlarmIntentCount = 0; 849 850 private FrameworkFacade mFacade; 851 852 private final BackupManagerProxy mBackupManagerProxy; 853 854 public WifiStateMachine(Context context, FrameworkFacade facade, Looper looper, 855 UserManager userManager, WifiInjector wifiInjector, 856 BackupManagerProxy backupManagerProxy, WifiCountryCode countryCode, 857 WifiNative wifiNative) { 858 super("WifiStateMachine", looper); 859 mWifiInjector = wifiInjector; 860 mWifiMetrics = mWifiInjector.getWifiMetrics(); 861 mClock = wifiInjector.getClock(); 862 mPropertyService = wifiInjector.getPropertyService(); 863 mBuildProperties = wifiInjector.getBuildProperties(); 864 mContext = context; 865 mFacade = facade; 866 mWifiNative = wifiNative; 867 mBackupManagerProxy = backupManagerProxy; 868 869 // TODO refactor WifiNative use of context out into it's own class 870 mWifiNative.initContext(mContext); 871 mInterfaceName = mWifiNative.getInterfaceName(); 872 mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_WIFI, 0, NETWORKTYPE, ""); 873 mBatteryStats = IBatteryStats.Stub.asInterface(mFacade.getService( 874 BatteryStats.SERVICE_NAME)); 875 876 IBinder b = mFacade.getService(Context.NETWORKMANAGEMENT_SERVICE); 877 mNwService = INetworkManagementService.Stub.asInterface(b); 878 879 mP2pSupported = mContext.getPackageManager().hasSystemFeature( 880 PackageManager.FEATURE_WIFI_DIRECT); 881 882 mWifiConfigManager = mWifiInjector.getWifiConfigManager(); 883 mWifiApConfigStore = mWifiInjector.getWifiApConfigStore(); 884 mWifiNative.setSystemSupportsFastBssTransition( 885 mContext.getResources().getBoolean(R.bool.config_wifi_fast_bss_transition_enabled)); 886 887 mPasspointManager = mWifiInjector.getPasspointManager(); 888 889 mWifiMonitor = WifiMonitor.getInstance(); 890 mWifiDiagnostics = mWifiInjector.makeWifiDiagnostics(mWifiNative); 891 892 mWifiInfo = new WifiInfo(); 893 mWifiNetworkSelector = mWifiInjector.getWifiNetworkSelector(); 894 mSupplicantStateTracker = 895 mFacade.makeSupplicantStateTracker(context, mWifiConfigManager, getHandler()); 896 897 mLinkProperties = new LinkProperties(); 898 899 mNetworkInfo.setIsAvailable(false); 900 mLastBssid = null; 901 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 902 mLastSignalLevel = -1; 903 904 mIpManager = mFacade.makeIpManager(mContext, mInterfaceName, new IpManagerCallback()); 905 mIpManager.setMulticastFilter(true); 906 907 mNoNetworksPeriodicScan = mContext.getResources().getInteger( 908 R.integer.config_wifi_no_network_periodic_scan_interval); 909 910 // TODO: remove these settings from the config file since we no longer obey them 911 // mContext.getResources().getInteger(R.integer.config_wifi_framework_scan_interval); 912 // mContext.getResources().getBoolean(R.bool.config_wifi_background_scan_support); 913 914 mPrimaryDeviceType = mContext.getResources().getString( 915 R.string.config_wifi_p2p_device_type); 916 917 mCountryCode = countryCode; 918 919 mWifiScoreReport = new WifiScoreReport(mContext, mWifiConfigManager); 920 921 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 922 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 923 924 mNetworkCapabilitiesFilter.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); 925 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); 926 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 927 mNetworkCapabilitiesFilter.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); 928 mNetworkCapabilitiesFilter.setLinkUpstreamBandwidthKbps(1024 * 1024); 929 mNetworkCapabilitiesFilter.setLinkDownstreamBandwidthKbps(1024 * 1024); 930 // TODO - needs to be a bit more dynamic 931 mDfltNetworkCapabilities = new NetworkCapabilities(mNetworkCapabilitiesFilter); 932 933 IntentFilter filter = new IntentFilter(); 934 filter.addAction(Intent.ACTION_SCREEN_ON); 935 filter.addAction(Intent.ACTION_SCREEN_OFF); 936 mContext.registerReceiver( 937 new BroadcastReceiver() { 938 @Override 939 public void onReceive(Context context, Intent intent) { 940 String action = intent.getAction(); 941 942 if (action.equals(Intent.ACTION_SCREEN_ON)) { 943 sendMessage(CMD_SCREEN_STATE_CHANGED, 1); 944 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 945 sendMessage(CMD_SCREEN_STATE_CHANGED, 0); 946 } 947 } 948 }, filter); 949 950 mContext.getContentResolver().registerContentObserver(Settings.Global.getUriFor( 951 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED), false, 952 new ContentObserver(getHandler()) { 953 @Override 954 public void onChange(boolean selfChange) { 955 mUserWantsSuspendOpt.set(mFacade.getIntegerSetting(mContext, 956 Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED, 1) == 1); 957 } 958 }); 959 960 mContext.registerReceiver( 961 new BroadcastReceiver() { 962 @Override 963 public void onReceive(Context context, Intent intent) { 964 sendMessage(CMD_BOOT_COMPLETED); 965 } 966 }, 967 new IntentFilter(Intent.ACTION_LOCKED_BOOT_COMPLETED)); 968 969 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 970 mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getName()); 971 972 mSuspendWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WifiSuspend"); 973 mSuspendWakeLock.setReferenceCounted(false); 974 975 mTcpBufferSizes = mContext.getResources().getString( 976 com.android.internal.R.string.config_wifi_tcp_buffers); 977 978 // Load Device configs 979 mEnableAutoJoinWhenAssociated = context.getResources().getBoolean( 980 R.bool.config_wifi_framework_enable_associated_network_selection); 981 mThresholdQualifiedRssi24 = context.getResources().getInteger( 982 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_24GHz); 983 mThresholdQualifiedRssi5 = context.getResources().getInteger( 984 R.integer.config_wifi_framework_wifi_score_low_rssi_threshold_5GHz); 985 mThresholdSaturatedRssi24 = context.getResources().getInteger( 986 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_24GHz); 987 mThresholdSaturatedRssi5 = context.getResources().getInteger( 988 R.integer.config_wifi_framework_wifi_score_good_rssi_threshold_5GHz); 989 mThresholdMinimumRssi5 = context.getResources().getInteger( 990 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_5GHz); 991 mThresholdMinimumRssi24 = context.getResources().getInteger( 992 R.integer.config_wifi_framework_wifi_score_bad_rssi_threshold_24GHz); 993 mEnableLinkDebouncing = mContext.getResources().getBoolean( 994 R.bool.config_wifi_enable_disconnection_debounce); 995 mEnableChipWakeUpWhenAssociated = true; 996 mEnableRssiPollWhenAssociated = true; 997 998 // CHECKSTYLE:OFF IndentationCheck 999 addState(mDefaultState); 1000 addState(mInitialState, mDefaultState); 1001 addState(mSupplicantStartingState, mDefaultState); 1002 addState(mSupplicantStartedState, mDefaultState); 1003 addState(mScanModeState, mSupplicantStartedState); 1004 addState(mConnectModeState, mSupplicantStartedState); 1005 addState(mL2ConnectedState, mConnectModeState); 1006 addState(mObtainingIpState, mL2ConnectedState); 1007 addState(mConnectedState, mL2ConnectedState); 1008 addState(mRoamingState, mL2ConnectedState); 1009 addState(mDisconnectingState, mConnectModeState); 1010 addState(mDisconnectedState, mConnectModeState); 1011 addState(mWpsRunningState, mConnectModeState); 1012 addState(mWaitForP2pDisableState, mSupplicantStartedState); 1013 addState(mSupplicantStoppingState, mDefaultState); 1014 addState(mSoftApState, mDefaultState); 1015 // CHECKSTYLE:ON IndentationCheck 1016 1017 setInitialState(mInitialState); 1018 1019 setLogRecSize(NUM_LOG_RECS_NORMAL); 1020 setLogOnlyTransitions(false); 1021 1022 //start the state machine 1023 start(); 1024 1025 // Learn the initial state of whether the screen is on. 1026 // We update this field when we receive broadcasts from the system. 1027 handleScreenStateChanged(powerManager.isInteractive()); 1028 1029 mWifiMonitor.registerHandler(mInterfaceName, CMD_TARGET_BSSID, getHandler()); 1030 mWifiMonitor.registerHandler(mInterfaceName, CMD_ASSOCIATED_BSSID, getHandler()); 1031 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ANQP_DONE_EVENT, getHandler()); 1032 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.ASSOCIATION_REJECTION_EVENT, 1033 getHandler()); 1034 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.AUTHENTICATION_FAILURE_EVENT, 1035 getHandler()); 1036 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.DRIVER_HUNG_EVENT, getHandler()); 1037 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_DONE_EVENT, getHandler()); 1038 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.GAS_QUERY_START_EVENT, 1039 getHandler()); 1040 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.HS20_REMEDIATION_EVENT, 1041 getHandler()); 1042 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_CONNECTION_EVENT, 1043 getHandler()); 1044 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.NETWORK_DISCONNECTION_EVENT, 1045 getHandler()); 1046 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.RX_HS20_ANQP_ICON_EVENT, 1047 getHandler()); 1048 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_FAILED_EVENT, getHandler()); 1049 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SCAN_RESULTS_EVENT, getHandler()); 1050 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_REENABLED, getHandler()); 1051 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SSID_TEMP_DISABLED, getHandler()); 1052 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_CONNECTION_EVENT, getHandler()); 1053 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_DISCONNECTION_EVENT, 1054 getHandler()); 1055 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 1056 getHandler()); 1057 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_IDENTITY, getHandler()); 1058 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.SUP_REQUEST_SIM_AUTH, getHandler()); 1059 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_FAIL_EVENT, getHandler()); 1060 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_OVERLAP_EVENT, getHandler()); 1061 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_SUCCESS_EVENT, getHandler()); 1062 mWifiMonitor.registerHandler(mInterfaceName, WifiMonitor.WPS_TIMEOUT_EVENT, getHandler()); 1063 1064 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 1065 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1066 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 1067 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 1068 } 1069 1070 class IpManagerCallback extends IpManager.Callback { 1071 @Override 1072 public void onPreDhcpAction() { 1073 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION); 1074 } 1075 1076 @Override 1077 public void onPostDhcpAction() { 1078 sendMessage(DhcpClient.CMD_POST_DHCP_ACTION); 1079 } 1080 1081 @Override 1082 public void onNewDhcpResults(DhcpResults dhcpResults) { 1083 if (dhcpResults != null) { 1084 sendMessage(CMD_IPV4_PROVISIONING_SUCCESS, dhcpResults); 1085 } else { 1086 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 1087 mWifiInjector.getWifiLastResortWatchdog().noteConnectionFailureAndTriggerIfNeeded( 1088 getTargetSsid(), mTargetRoamBSSID, 1089 WifiLastResortWatchdog.FAILURE_CODE_DHCP); 1090 } 1091 } 1092 1093 @Override 1094 public void onProvisioningSuccess(LinkProperties newLp) { 1095 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1096 sendMessage(CMD_IP_CONFIGURATION_SUCCESSFUL); 1097 } 1098 1099 @Override 1100 public void onProvisioningFailure(LinkProperties newLp) { 1101 sendMessage(CMD_IP_CONFIGURATION_LOST); 1102 } 1103 1104 @Override 1105 public void onLinkPropertiesChange(LinkProperties newLp) { 1106 sendMessage(CMD_UPDATE_LINKPROPERTIES, newLp); 1107 } 1108 1109 @Override 1110 public void onReachabilityLost(String logMsg) { 1111 sendMessage(CMD_IP_REACHABILITY_LOST, logMsg); 1112 } 1113 1114 @Override 1115 public void installPacketFilter(byte[] filter) { 1116 sendMessage(CMD_INSTALL_PACKET_FILTER, filter); 1117 } 1118 1119 @Override 1120 public void setFallbackMulticastFilter(boolean enabled) { 1121 sendMessage(CMD_SET_FALLBACK_PACKET_FILTERING, enabled); 1122 } 1123 1124 @Override 1125 public void setNeighborDiscoveryOffload(boolean enabled) { 1126 sendMessage(CMD_CONFIG_ND_OFFLOAD, (enabled ? 1 : 0)); 1127 } 1128 } 1129 1130 private void stopIpManager() { 1131 /* Restore power save and suspend optimizations */ 1132 handlePostDhcpSetup(); 1133 mIpManager.stop(); 1134 } 1135 1136 PendingIntent getPrivateBroadcast(String action, int requestCode) { 1137 Intent intent = new Intent(action, null); 1138 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 1139 intent.setPackage("android"); 1140 return mFacade.getBroadcast(mContext, requestCode, intent, 0); 1141 } 1142 1143 /** 1144 * Set wpa_supplicant log level using |mVerboseLoggingLevel| flag. 1145 */ 1146 void setSupplicantLogLevel() { 1147 if (mVerboseLoggingEnabled) { 1148 mWifiNative.setSupplicantLogLevel("DEBUG"); 1149 } else { 1150 mWifiNative.setSupplicantLogLevel("INFO"); 1151 } 1152 } 1153 1154 /** 1155 * Method to update logging level in wifi service related classes. 1156 * 1157 * @param verbose int logging level to use 1158 */ 1159 public void enableVerboseLogging(int verbose) { 1160 if (verbose > 0) { 1161 mVerboseLoggingEnabled = true; 1162 setLogRecSize(ActivityManager.isLowRamDeviceStatic() 1163 ? NUM_LOG_RECS_VERBOSE_LOW_MEMORY : NUM_LOG_RECS_VERBOSE); 1164 } else { 1165 mVerboseLoggingEnabled = false; 1166 setLogRecSize(NUM_LOG_RECS_NORMAL); 1167 } 1168 configureVerboseHalLogging(mVerboseLoggingEnabled); 1169 setSupplicantLogLevel(); 1170 mCountryCode.enableVerboseLogging(verbose); 1171 mWifiScoreReport.enableVerboseLogging(mVerboseLoggingEnabled); 1172 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 1173 mWifiMonitor.enableVerboseLogging(verbose); 1174 mWifiNative.enableVerboseLogging(verbose); 1175 mWifiConfigManager.enableVerboseLogging(verbose); 1176 mSupplicantStateTracker.enableVerboseLogging(verbose); 1177 } 1178 1179 private static final String SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL = "log.tag.WifiHAL"; 1180 private static final String LOGD_LEVEL_DEBUG = "D"; 1181 private static final String LOGD_LEVEL_VERBOSE = "V"; 1182 private void configureVerboseHalLogging(boolean enableVerbose) { 1183 if (mBuildProperties.isUserBuild()) { // Verbose HAL logging not supported on user builds. 1184 return; 1185 } 1186 mPropertyService.set(SYSTEM_PROPERTY_LOG_CONTROL_WIFIHAL, 1187 enableVerbose ? LOGD_LEVEL_VERBOSE : LOGD_LEVEL_DEBUG); 1188 } 1189 1190 private int mAggressiveHandover = 0; 1191 1192 int getAggressiveHandover() { 1193 return mAggressiveHandover; 1194 } 1195 1196 void enableAggressiveHandover(int enabled) { 1197 mAggressiveHandover = enabled; 1198 } 1199 1200 public void clearANQPCache() { 1201 // TODO(b/31065385) 1202 // mWifiConfigManager.trimANQPCache(true); 1203 } 1204 1205 public void setAllowScansWithTraffic(int enabled) { 1206 mAlwaysEnableScansWhileAssociated = enabled; 1207 } 1208 1209 public int getAllowScansWithTraffic() { 1210 return mAlwaysEnableScansWhileAssociated; 1211 } 1212 1213 /* 1214 * Dynamically turn on/off if switching networks while connected is allowd. 1215 */ 1216 public boolean setEnableAutoJoinWhenAssociated(boolean enabled) { 1217 sendMessage(CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED, enabled ? 1 : 0); 1218 return true; 1219 } 1220 1221 public boolean getEnableAutoJoinWhenAssociated() { 1222 return mEnableAutoJoinWhenAssociated; 1223 } 1224 1225 private boolean setRandomMacOui() { 1226 String oui = mContext.getResources().getString(R.string.config_wifi_random_mac_oui); 1227 if (TextUtils.isEmpty(oui)) { 1228 oui = GOOGLE_OUI; 1229 } 1230 String[] ouiParts = oui.split("-"); 1231 byte[] ouiBytes = new byte[3]; 1232 ouiBytes[0] = (byte) (Integer.parseInt(ouiParts[0], 16) & 0xFF); 1233 ouiBytes[1] = (byte) (Integer.parseInt(ouiParts[1], 16) & 0xFF); 1234 ouiBytes[2] = (byte) (Integer.parseInt(ouiParts[2], 16) & 0xFF); 1235 1236 logd("Setting OUI to " + oui); 1237 return mWifiNative.setScanningMacOui(ouiBytes); 1238 } 1239 1240 /** 1241 * Helper method to lookup the framework network ID of the network currently configured in 1242 * wpa_supplicant using the provided supplicant network ID. This is needed for translating the 1243 * networkID received from all {@link WifiMonitor} events. 1244 * 1245 * @param supplicantNetworkId Network ID of network in wpa_supplicant. 1246 * @return Corresponding Internal configured network ID 1247 * TODO(b/31080843): This is ugly! We need to hide this translation of networkId's. This will 1248 * be handled once we move all of this connection logic to wificond. 1249 */ 1250 private int lookupFrameworkNetworkId(int supplicantNetworkId) { 1251 return mWifiNative.getFrameworkNetworkId(supplicantNetworkId); 1252 } 1253 1254 /** 1255 * Initiates connection to a network specified by the user/app. This method checks if the 1256 * requesting app holds the WIFI_CONFIG_OVERRIDE permission. 1257 */ 1258 private boolean connectToUserSelectNetwork(int netId, int uid) { 1259 if (!mWifiConfigManager.enableNetwork(netId, true, uid)) { 1260 loge("connectToUserSelectNetwork uid " + uid 1261 + " did not have the permissions to enable=" + netId); 1262 return false; 1263 } 1264 if (!mWifiConfigManager.checkAndUpdateLastConnectUid(netId, uid)) { 1265 logi("connectToUserSelectNetwork Allowing uid " + uid 1266 + " with insufficient permissions to connect=" + netId); 1267 } 1268 // Trigger an immediate connection to the specified network. We're also noting the user 1269 // connect choice here, so that it will be considered in the next network selection. 1270 mWifiConnectivityManager.setUserConnectChoice(netId); 1271 if (mWifiInfo.getNetworkId() == netId) { 1272 // We're already connected to the user specified network, don't trigger a 1273 // reconnection. 1274 logi("connectToUserSelectNetwork already connecting/connected=" + netId); 1275 } else { 1276 startConnectToNetwork(netId, SUPPLICANT_BSSID_ANY); 1277 } 1278 return true; 1279 } 1280 1281 /** 1282 * ****************************************************** 1283 * Methods exposed for public use 1284 * ****************************************************** 1285 */ 1286 1287 public Messenger getMessenger() { 1288 return new Messenger(getHandler()); 1289 } 1290 1291 /** 1292 * TODO: doc 1293 */ 1294 public boolean syncPingSupplicant(AsyncChannel channel) { 1295 Message resultMsg = channel.sendMessageSynchronously(CMD_PING_SUPPLICANT); 1296 boolean result = (resultMsg.arg1 != FAILURE); 1297 resultMsg.recycle(); 1298 return result; 1299 } 1300 1301 /** 1302 * Initiate a wifi scan. If workSource is not null, blame is given to it, otherwise blame is 1303 * given to callingUid. 1304 * 1305 * @param callingUid The uid initiating the wifi scan. Blame will be given here unless 1306 * workSource is specified. 1307 * @param workSource If not null, blame is given to workSource. 1308 * @param settings Scan settings, see {@link ScanSettings}. 1309 */ 1310 public void startScan(int callingUid, int scanCounter, 1311 ScanSettings settings, WorkSource workSource) { 1312 Bundle bundle = new Bundle(); 1313 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, settings); 1314 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1315 bundle.putLong(SCAN_REQUEST_TIME, mClock.getWallClockMillis()); 1316 sendMessage(CMD_START_SCAN, callingUid, scanCounter, bundle); 1317 } 1318 1319 private long mDisconnectedTimeStamp = 0; 1320 1321 public long getDisconnectedTimeMilli() { 1322 if (getCurrentState() == mDisconnectedState 1323 && mDisconnectedTimeStamp != 0) { 1324 long now_ms = mClock.getWallClockMillis(); 1325 return now_ms - mDisconnectedTimeStamp; 1326 } 1327 return 0; 1328 } 1329 1330 // Last connect attempt is used to prevent scan requests: 1331 // - for a period of 10 seconds after attempting to connect 1332 private long lastConnectAttemptTimestamp = 0; 1333 private Set<Integer> lastScanFreqs = null; 1334 1335 // For debugging, keep track of last message status handling 1336 // TODO, find an equivalent mechanism as part of parent class 1337 private static final int MESSAGE_HANDLING_STATUS_PROCESSED = 2; 1338 private static final int MESSAGE_HANDLING_STATUS_OK = 1; 1339 private static final int MESSAGE_HANDLING_STATUS_UNKNOWN = 0; 1340 private static final int MESSAGE_HANDLING_STATUS_REFUSED = -1; 1341 private static final int MESSAGE_HANDLING_STATUS_FAIL = -2; 1342 private static final int MESSAGE_HANDLING_STATUS_OBSOLETE = -3; 1343 private static final int MESSAGE_HANDLING_STATUS_DEFERRED = -4; 1344 private static final int MESSAGE_HANDLING_STATUS_DISCARD = -5; 1345 private static final int MESSAGE_HANDLING_STATUS_LOOPED = -6; 1346 private static final int MESSAGE_HANDLING_STATUS_HANDLING_ERROR = -7; 1347 1348 private int messageHandlingStatus = 0; 1349 1350 //TODO: this is used only to track connection attempts, however the link state and packet per 1351 //TODO: second logic should be folded into that 1352 private boolean checkOrDeferScanAllowed(Message msg) { 1353 long now = mClock.getWallClockMillis(); 1354 if (lastConnectAttemptTimestamp != 0 && (now - lastConnectAttemptTimestamp) < 10000) { 1355 Message dmsg = Message.obtain(msg); 1356 sendMessageDelayed(dmsg, 11000 - (now - lastConnectAttemptTimestamp)); 1357 return false; 1358 } 1359 return true; 1360 } 1361 1362 private int mOnTime = 0; 1363 private int mTxTime = 0; 1364 private int mRxTime = 0; 1365 1366 private int mOnTimeScreenStateChange = 0; 1367 private long lastOntimeReportTimeStamp = 0; 1368 private long lastScreenStateChangeTimeStamp = 0; 1369 private int mOnTimeLastReport = 0; 1370 private int mTxTimeLastReport = 0; 1371 private int mRxTimeLastReport = 0; 1372 1373 private long lastLinkLayerStatsUpdate = 0; 1374 1375 String reportOnTime() { 1376 long now = mClock.getWallClockMillis(); 1377 StringBuilder sb = new StringBuilder(); 1378 // Report stats since last report 1379 int on = mOnTime - mOnTimeLastReport; 1380 mOnTimeLastReport = mOnTime; 1381 int tx = mTxTime - mTxTimeLastReport; 1382 mTxTimeLastReport = mTxTime; 1383 int rx = mRxTime - mRxTimeLastReport; 1384 mRxTimeLastReport = mRxTime; 1385 int period = (int) (now - lastOntimeReportTimeStamp); 1386 lastOntimeReportTimeStamp = now; 1387 sb.append(String.format("[on:%d tx:%d rx:%d period:%d]", on, tx, rx, period)); 1388 // Report stats since Screen State Changed 1389 on = mOnTime - mOnTimeScreenStateChange; 1390 period = (int) (now - lastScreenStateChangeTimeStamp); 1391 sb.append(String.format(" from screen [on:%d period:%d]", on, period)); 1392 return sb.toString(); 1393 } 1394 1395 WifiLinkLayerStats getWifiLinkLayerStats() { 1396 WifiLinkLayerStats stats = null; 1397 if (mWifiLinkLayerStatsSupported > 0) { 1398 String name = "wlan0"; 1399 stats = mWifiNative.getWifiLinkLayerStats(name); 1400 if (name != null && stats == null && mWifiLinkLayerStatsSupported > 0) { 1401 mWifiLinkLayerStatsSupported -= 1; 1402 } else if (stats != null) { 1403 lastLinkLayerStatsUpdate = mClock.getWallClockMillis(); 1404 mOnTime = stats.on_time; 1405 mTxTime = stats.tx_time; 1406 mRxTime = stats.rx_time; 1407 mRunningBeaconCount = stats.beacon_rx; 1408 } 1409 } 1410 if (stats == null || mWifiLinkLayerStatsSupported <= 0) { 1411 long mTxPkts = mFacade.getTxPackets(mInterfaceName); 1412 long mRxPkts = mFacade.getRxPackets(mInterfaceName); 1413 mWifiInfo.updatePacketRates(mTxPkts, mRxPkts); 1414 } else { 1415 mWifiInfo.updatePacketRates(stats, lastLinkLayerStatsUpdate); 1416 } 1417 return stats; 1418 } 1419 1420 int startWifiIPPacketOffload(int slot, KeepalivePacketData packetData, int intervalSeconds) { 1421 int ret = mWifiNative.startSendingOffloadedPacket(slot, packetData, intervalSeconds * 1000); 1422 if (ret != 0) { 1423 loge("startWifiIPPacketOffload(" + slot + ", " + intervalSeconds + 1424 "): hardware error " + ret); 1425 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1426 } else { 1427 return ConnectivityManager.PacketKeepalive.SUCCESS; 1428 } 1429 } 1430 1431 int stopWifiIPPacketOffload(int slot) { 1432 int ret = mWifiNative.stopSendingOffloadedPacket(slot); 1433 if (ret != 0) { 1434 loge("stopWifiIPPacketOffload(" + slot + "): hardware error " + ret); 1435 return ConnectivityManager.PacketKeepalive.ERROR_HARDWARE_ERROR; 1436 } else { 1437 return ConnectivityManager.PacketKeepalive.SUCCESS; 1438 } 1439 } 1440 1441 int startRssiMonitoringOffload(byte maxRssi, byte minRssi) { 1442 return mWifiNative.startRssiMonitoring(maxRssi, minRssi, WifiStateMachine.this); 1443 } 1444 1445 int stopRssiMonitoringOffload() { 1446 return mWifiNative.stopRssiMonitoring(); 1447 } 1448 1449 private void handleScanRequest(Message message) { 1450 ScanSettings settings = null; 1451 WorkSource workSource = null; 1452 1453 // unbundle parameters 1454 Bundle bundle = (Bundle) message.obj; 1455 1456 if (bundle != null) { 1457 settings = bundle.getParcelable(CUSTOMIZED_SCAN_SETTING); 1458 workSource = bundle.getParcelable(CUSTOMIZED_SCAN_WORKSOURCE); 1459 } 1460 1461 Set<Integer> freqs = null; 1462 if (settings != null && settings.channelSet != null) { 1463 freqs = new HashSet<>(); 1464 for (WifiChannel channel : settings.channelSet) { 1465 freqs.add(channel.freqMHz); 1466 } 1467 } 1468 1469 // Retrieve the list of hidden network SSIDs to scan for. 1470 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = 1471 mWifiConfigManager.retrieveHiddenNetworkList(); 1472 1473 // call wifi native to start the scan 1474 if (startScanNative(freqs, hiddenNetworks, workSource)) { 1475 // a full scan covers everything, clearing scan request buffer 1476 if (freqs == null) 1477 mBufferedScanMsg.clear(); 1478 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 1479 return; 1480 } 1481 1482 // if reach here, scan request is rejected 1483 1484 if (!mIsScanOngoing) { 1485 // if rejection is NOT due to ongoing scan (e.g. bad scan parameters), 1486 1487 // discard this request and pop up the next one 1488 if (mBufferedScanMsg.size() > 0) { 1489 sendMessage(mBufferedScanMsg.remove()); 1490 } 1491 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 1492 } else if (!mIsFullScanOngoing) { 1493 // if rejection is due to an ongoing scan, and the ongoing one is NOT a full scan, 1494 // buffer the scan request to make sure specified channels will be scanned eventually 1495 if (freqs == null) 1496 mBufferedScanMsg.clear(); 1497 if (mBufferedScanMsg.size() < SCAN_REQUEST_BUFFER_MAX_SIZE) { 1498 Message msg = obtainMessage(CMD_START_SCAN, 1499 message.arg1, message.arg2, bundle); 1500 mBufferedScanMsg.add(msg); 1501 } else { 1502 // if too many requests in buffer, combine them into a single full scan 1503 bundle = new Bundle(); 1504 bundle.putParcelable(CUSTOMIZED_SCAN_SETTING, null); 1505 bundle.putParcelable(CUSTOMIZED_SCAN_WORKSOURCE, workSource); 1506 Message msg = obtainMessage(CMD_START_SCAN, message.arg1, message.arg2, bundle); 1507 mBufferedScanMsg.clear(); 1508 mBufferedScanMsg.add(msg); 1509 } 1510 messageHandlingStatus = MESSAGE_HANDLING_STATUS_LOOPED; 1511 } else { 1512 // mIsScanOngoing and mIsFullScanOngoing 1513 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 1514 } 1515 } 1516 1517 1518 // TODO this is a temporary measure to bridge between WifiScanner and WifiStateMachine until 1519 // scan functionality is refactored out of WifiStateMachine. 1520 /** 1521 * return true iff scan request is accepted 1522 */ 1523 private boolean startScanNative(final Set<Integer> freqs, 1524 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworkList, 1525 WorkSource workSource) { 1526 WifiScanner.ScanSettings settings = new WifiScanner.ScanSettings(); 1527 if (freqs == null) { 1528 settings.band = WifiScanner.WIFI_BAND_BOTH_WITH_DFS; 1529 } else { 1530 settings.band = WifiScanner.WIFI_BAND_UNSPECIFIED; 1531 int index = 0; 1532 settings.channels = new WifiScanner.ChannelSpec[freqs.size()]; 1533 for (Integer freq : freqs) { 1534 settings.channels[index++] = new WifiScanner.ChannelSpec(freq); 1535 } 1536 } 1537 settings.reportEvents = WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN 1538 | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT; 1539 1540 settings.hiddenNetworks = 1541 hiddenNetworkList.toArray( 1542 new WifiScanner.ScanSettings.HiddenNetwork[hiddenNetworkList.size()]); 1543 1544 WifiScanner.ScanListener nativeScanListener = new WifiScanner.ScanListener() { 1545 // ignore all events since WifiStateMachine is registered for the supplicant events 1546 @Override 1547 public void onSuccess() { 1548 } 1549 @Override 1550 public void onFailure(int reason, String description) { 1551 mIsScanOngoing = false; 1552 mIsFullScanOngoing = false; 1553 } 1554 @Override 1555 public void onResults(WifiScanner.ScanData[] results) { 1556 } 1557 @Override 1558 public void onFullResult(ScanResult fullScanResult) { 1559 } 1560 @Override 1561 public void onPeriodChanged(int periodInMs) { 1562 } 1563 }; 1564 mWifiScanner.startScan(settings, nativeScanListener, workSource); 1565 mIsScanOngoing = true; 1566 mIsFullScanOngoing = (freqs == null); 1567 lastScanFreqs = freqs; 1568 return true; 1569 } 1570 1571 /** 1572 * TODO: doc 1573 */ 1574 public void setSupplicantRunning(boolean enable) { 1575 if (enable) { 1576 sendMessage(CMD_START_SUPPLICANT); 1577 } else { 1578 sendMessage(CMD_STOP_SUPPLICANT); 1579 } 1580 } 1581 1582 /** 1583 * TODO: doc 1584 */ 1585 public void setHostApRunning(WifiConfiguration wifiConfig, boolean enable) { 1586 if (enable) { 1587 sendMessage(CMD_START_AP, wifiConfig); 1588 } else { 1589 sendMessage(CMD_STOP_AP); 1590 } 1591 } 1592 1593 public void setWifiApConfiguration(WifiConfiguration config) { 1594 mWifiApConfigStore.setApConfiguration(config); 1595 } 1596 1597 public WifiConfiguration syncGetWifiApConfiguration() { 1598 return mWifiApConfigStore.getApConfiguration(); 1599 } 1600 1601 /** 1602 * TODO: doc 1603 */ 1604 public int syncGetWifiState() { 1605 return mWifiState.get(); 1606 } 1607 1608 /** 1609 * TODO: doc 1610 */ 1611 public String syncGetWifiStateByName() { 1612 switch (mWifiState.get()) { 1613 case WIFI_STATE_DISABLING: 1614 return "disabling"; 1615 case WIFI_STATE_DISABLED: 1616 return "disabled"; 1617 case WIFI_STATE_ENABLING: 1618 return "enabling"; 1619 case WIFI_STATE_ENABLED: 1620 return "enabled"; 1621 case WIFI_STATE_UNKNOWN: 1622 return "unknown state"; 1623 default: 1624 return "[invalid state]"; 1625 } 1626 } 1627 1628 /** 1629 * TODO: doc 1630 */ 1631 public int syncGetWifiApState() { 1632 return mWifiApState.get(); 1633 } 1634 1635 /** 1636 * TODO: doc 1637 */ 1638 public String syncGetWifiApStateByName() { 1639 switch (mWifiApState.get()) { 1640 case WIFI_AP_STATE_DISABLING: 1641 return "disabling"; 1642 case WIFI_AP_STATE_DISABLED: 1643 return "disabled"; 1644 case WIFI_AP_STATE_ENABLING: 1645 return "enabling"; 1646 case WIFI_AP_STATE_ENABLED: 1647 return "enabled"; 1648 case WIFI_AP_STATE_FAILED: 1649 return "failed"; 1650 default: 1651 return "[invalid state]"; 1652 } 1653 } 1654 1655 public boolean isConnected() { 1656 return getCurrentState() == mConnectedState; 1657 } 1658 1659 public boolean isDisconnected() { 1660 return getCurrentState() == mDisconnectedState; 1661 } 1662 1663 public boolean isSupplicantTransientState() { 1664 SupplicantState supplicantState = mWifiInfo.getSupplicantState(); 1665 if (supplicantState == SupplicantState.ASSOCIATING 1666 || supplicantState == SupplicantState.AUTHENTICATING 1667 || supplicantState == SupplicantState.FOUR_WAY_HANDSHAKE 1668 || supplicantState == SupplicantState.GROUP_HANDSHAKE) { 1669 1670 if (mVerboseLoggingEnabled) { 1671 Log.d(TAG, "Supplicant is under transient state: " + supplicantState); 1672 } 1673 return true; 1674 } else { 1675 if (mVerboseLoggingEnabled) { 1676 Log.d(TAG, "Supplicant is under steady state: " + supplicantState); 1677 } 1678 } 1679 1680 return false; 1681 } 1682 1683 public boolean isLinkDebouncing() { 1684 return mIsLinkDebouncing; 1685 } 1686 1687 /** 1688 * Get status information for the current connection, if any. 1689 * 1690 * @return a {@link WifiInfo} object containing information about the current connection 1691 */ 1692 public WifiInfo syncRequestConnectionInfo() { 1693 return getWiFiInfoForUid(Binder.getCallingUid()); 1694 } 1695 1696 public WifiInfo getWifiInfo() { 1697 return mWifiInfo; 1698 } 1699 1700 public DhcpResults syncGetDhcpResults() { 1701 synchronized (mDhcpResultsLock) { 1702 return new DhcpResults(mDhcpResults); 1703 } 1704 } 1705 1706 /** 1707 * TODO: doc 1708 */ 1709 public void setOperationalMode(int mode) { 1710 if (mVerboseLoggingEnabled) log("setting operational mode to " + String.valueOf(mode)); 1711 sendMessage(CMD_SET_OPERATIONAL_MODE, mode, 0); 1712 } 1713 1714 /** 1715 * Allow tests to confirm the operational mode for WSM. 1716 */ 1717 @VisibleForTesting 1718 protected int getOperationalModeForTest() { 1719 return mOperationalMode; 1720 } 1721 1722 /** 1723 * TODO: doc 1724 */ 1725 public List<ScanResult> syncGetScanResultsList() { 1726 synchronized (mScanResultsLock) { 1727 List<ScanResult> scanList = new ArrayList<>(); 1728 for (ScanDetail result : mScanResults) { 1729 scanList.add(new ScanResult(result.getScanResult())); 1730 } 1731 return scanList; 1732 } 1733 } 1734 1735 public boolean syncQueryPasspointIcon(AsyncChannel channel, long bssid, String fileName) { 1736 Bundle bundle = new Bundle(); 1737 bundle.putLong(EXTRA_OSU_ICON_QUERY_BSSID, bssid); 1738 bundle.putString(EXTRA_OSU_ICON_QUERY_FILENAME, fileName); 1739 Message resultMsg = channel.sendMessageSynchronously(CMD_QUERY_OSU_ICON, bundle); 1740 int result = resultMsg.arg1; 1741 resultMsg.recycle(); 1742 return result == 1; 1743 } 1744 1745 public int matchProviderWithCurrentNetwork(AsyncChannel channel, String fqdn) { 1746 Message resultMsg = channel.sendMessageSynchronously(CMD_MATCH_PROVIDER_NETWORK, fqdn); 1747 int result = resultMsg.arg1; 1748 resultMsg.recycle(); 1749 return result; 1750 } 1751 1752 /** 1753 * Deauthenticate and set the re-authentication hold off time for the current network 1754 * @param holdoff hold off time in milliseconds 1755 * @param ess set if the hold off pertains to an ESS rather than a BSS 1756 */ 1757 public void deauthenticateNetwork(AsyncChannel channel, long holdoff, boolean ess) { 1758 // TODO: This needs an implementation 1759 } 1760 1761 public void disableEphemeralNetwork(String SSID) { 1762 if (SSID != null) { 1763 sendMessage(CMD_DISABLE_EPHEMERAL_NETWORK, SSID); 1764 } 1765 } 1766 1767 /** 1768 * Disconnect from Access Point 1769 */ 1770 public void disconnectCommand() { 1771 sendMessage(CMD_DISCONNECT); 1772 } 1773 1774 public void disconnectCommand(int uid, int reason) { 1775 sendMessage(CMD_DISCONNECT, uid, reason); 1776 } 1777 1778 /** 1779 * Initiate a reconnection to AP 1780 */ 1781 public void reconnectCommand() { 1782 sendMessage(CMD_RECONNECT); 1783 } 1784 1785 /** 1786 * Initiate a re-association to AP 1787 */ 1788 public void reassociateCommand() { 1789 sendMessage(CMD_REASSOCIATE); 1790 } 1791 1792 /** 1793 * Reload networks and then reconnect; helps load correct data for TLS networks 1794 */ 1795 1796 public void reloadTlsNetworksAndReconnect() { 1797 sendMessage(CMD_RELOAD_TLS_AND_RECONNECT); 1798 } 1799 1800 /** 1801 * Add a network synchronously 1802 * 1803 * @return network id of the new network 1804 */ 1805 public int syncAddOrUpdateNetwork(AsyncChannel channel, WifiConfiguration config) { 1806 Message resultMsg = channel.sendMessageSynchronously(CMD_ADD_OR_UPDATE_NETWORK, config); 1807 int result = resultMsg.arg1; 1808 resultMsg.recycle(); 1809 return result; 1810 } 1811 1812 /** 1813 * Get configured networks synchronously 1814 * 1815 * @param channel 1816 * @return 1817 */ 1818 1819 public List<WifiConfiguration> syncGetConfiguredNetworks(int uuid, AsyncChannel channel) { 1820 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONFIGURED_NETWORKS, uuid); 1821 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1822 resultMsg.recycle(); 1823 return result; 1824 } 1825 1826 public List<WifiConfiguration> syncGetPrivilegedConfiguredNetwork(AsyncChannel channel) { 1827 Message resultMsg = channel.sendMessageSynchronously( 1828 CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS); 1829 List<WifiConfiguration> result = (List<WifiConfiguration>) resultMsg.obj; 1830 resultMsg.recycle(); 1831 return result; 1832 } 1833 1834 public WifiConfiguration syncGetMatchingWifiConfig(ScanResult scanResult, AsyncChannel channel) { 1835 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_MATCHING_CONFIG, scanResult); 1836 return (WifiConfiguration) resultMsg.obj; 1837 } 1838 1839 /** 1840 * Get connection statistics synchronously 1841 * 1842 * @param channel 1843 * @return 1844 */ 1845 1846 public WifiConnectionStatistics syncGetConnectionStatistics(AsyncChannel channel) { 1847 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_CONNECTION_STATISTICS); 1848 WifiConnectionStatistics result = (WifiConnectionStatistics) resultMsg.obj; 1849 resultMsg.recycle(); 1850 return result; 1851 } 1852 1853 /** 1854 * Get adaptors synchronously 1855 */ 1856 1857 public int syncGetSupportedFeatures(AsyncChannel channel) { 1858 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_SUPPORTED_FEATURES); 1859 int supportedFeatureSet = resultMsg.arg1; 1860 resultMsg.recycle(); 1861 1862 // Mask the feature set against system properties. 1863 boolean disableRtt = mPropertyService.getBoolean("config.disable_rtt", false); 1864 if (disableRtt) { 1865 supportedFeatureSet &= 1866 ~(WifiManager.WIFI_FEATURE_D2D_RTT | WifiManager.WIFI_FEATURE_D2AP_RTT); 1867 } 1868 1869 return supportedFeatureSet; 1870 } 1871 1872 /** 1873 * Get link layers stats for adapter synchronously 1874 */ 1875 public WifiLinkLayerStats syncGetLinkLayerStats(AsyncChannel channel) { 1876 Message resultMsg = channel.sendMessageSynchronously(CMD_GET_LINK_LAYER_STATS); 1877 WifiLinkLayerStats result = (WifiLinkLayerStats) resultMsg.obj; 1878 resultMsg.recycle(); 1879 return result; 1880 } 1881 1882 /** 1883 * Delete a network 1884 * 1885 * @param networkId id of the network to be removed 1886 */ 1887 public boolean syncRemoveNetwork(AsyncChannel channel, int networkId) { 1888 Message resultMsg = channel.sendMessageSynchronously(CMD_REMOVE_NETWORK, networkId); 1889 boolean result = (resultMsg.arg1 != FAILURE); 1890 resultMsg.recycle(); 1891 return result; 1892 } 1893 1894 /** 1895 * Enable a network 1896 * 1897 * @param netId network id of the network 1898 * @param disableOthers true, if all other networks have to be disabled 1899 * @return {@code true} if the operation succeeds, {@code false} otherwise 1900 */ 1901 public boolean syncEnableNetwork(AsyncChannel channel, int netId, boolean disableOthers) { 1902 Message resultMsg = channel.sendMessageSynchronously(CMD_ENABLE_NETWORK, netId, 1903 disableOthers ? 1 : 0); 1904 boolean result = (resultMsg.arg1 != FAILURE); 1905 resultMsg.recycle(); 1906 return result; 1907 } 1908 1909 /** 1910 * Disable a network 1911 * 1912 * @param netId network id of the network 1913 * @return {@code true} if the operation succeeds, {@code false} otherwise 1914 */ 1915 public boolean syncDisableNetwork(AsyncChannel channel, int netId) { 1916 Message resultMsg = channel.sendMessageSynchronously(WifiManager.DISABLE_NETWORK, netId); 1917 boolean result = (resultMsg.arg1 != WifiManager.DISABLE_NETWORK_FAILED); 1918 resultMsg.recycle(); 1919 return result; 1920 } 1921 1922 /** 1923 * Retrieves a WPS-NFC configuration token for the specified network 1924 * 1925 * @return a hex string representation of the WPS-NFC configuration token 1926 */ 1927 public String syncGetWpsNfcConfigurationToken(int netId) { 1928 return mWifiNative.getNfcWpsConfigurationToken(netId); 1929 } 1930 1931 public void enableRssiPolling(boolean enabled) { 1932 sendMessage(CMD_ENABLE_RSSI_POLL, enabled ? 1 : 0, 0); 1933 } 1934 1935 /** 1936 * Start filtering Multicast v4 packets 1937 */ 1938 public void startFilteringMulticastPackets() { 1939 mIpManager.setMulticastFilter(true); 1940 } 1941 1942 /** 1943 * Stop filtering Multicast v4 packets 1944 */ 1945 public void stopFilteringMulticastPackets() { 1946 mIpManager.setMulticastFilter(false); 1947 } 1948 1949 /** 1950 * Set high performance mode of operation. 1951 * Enabling would set active power mode and disable suspend optimizations; 1952 * disabling would set auto power mode and enable suspend optimizations 1953 * 1954 * @param enable true if enable, false otherwise 1955 */ 1956 public void setHighPerfModeEnabled(boolean enable) { 1957 sendMessage(CMD_SET_HIGH_PERF_MODE, enable ? 1 : 0, 0); 1958 } 1959 1960 1961 /** 1962 * reset cached SIM credential data 1963 */ 1964 public synchronized void resetSimAuthNetworks(boolean simPresent) { 1965 sendMessage(CMD_RESET_SIM_NETWORKS, simPresent ? 1 : 0); 1966 } 1967 1968 /** 1969 * Get Network object of current wifi network 1970 * @return Network object of current wifi network 1971 */ 1972 public Network getCurrentNetwork() { 1973 if (mNetworkAgent != null) { 1974 return new Network(mNetworkAgent.netId); 1975 } else { 1976 return null; 1977 } 1978 } 1979 1980 /** 1981 * Enable TDLS for a specific MAC address 1982 */ 1983 public void enableTdls(String remoteMacAddress, boolean enable) { 1984 int enabler = enable ? 1 : 0; 1985 sendMessage(CMD_ENABLE_TDLS, enabler, 0, remoteMacAddress); 1986 } 1987 1988 /** 1989 * Send a message indicating bluetooth adapter connection state changed 1990 */ 1991 public void sendBluetoothAdapterStateChange(int state) { 1992 sendMessage(CMD_BLUETOOTH_ADAPTER_STATE_CHANGE, state, 0); 1993 } 1994 1995 /** 1996 * Send a message indicating a package has been uninstalled. 1997 */ 1998 public void removeAppConfigs(String packageName, int uid) { 1999 // Build partial AppInfo manually - package may not exist in database any more 2000 ApplicationInfo ai = new ApplicationInfo(); 2001 ai.packageName = packageName; 2002 ai.uid = uid; 2003 sendMessage(CMD_REMOVE_APP_CONFIGURATIONS, ai); 2004 } 2005 2006 /** 2007 * Send a message indicating a user has been removed. 2008 */ 2009 public void removeUserConfigs(int userId) { 2010 sendMessage(CMD_REMOVE_USER_CONFIGURATIONS, userId); 2011 } 2012 2013 /** 2014 * Save configuration on supplicant 2015 * 2016 * @return {@code true} if the operation succeeds, {@code false} otherwise 2017 * <p/> 2018 * TODO: deprecate this 2019 */ 2020 public boolean syncSaveConfig(AsyncChannel channel) { 2021 Message resultMsg = channel.sendMessageSynchronously(CMD_SAVE_CONFIG); 2022 boolean result = (resultMsg.arg1 != FAILURE); 2023 resultMsg.recycle(); 2024 return result; 2025 } 2026 2027 public void updateBatteryWorkSource(WorkSource newSource) { 2028 synchronized (mRunningWifiUids) { 2029 try { 2030 if (newSource != null) { 2031 mRunningWifiUids.set(newSource); 2032 } 2033 if (mIsRunning) { 2034 if (mReportedRunning) { 2035 // If the work source has changed since last time, need 2036 // to remove old work from battery stats. 2037 if (mLastRunningWifiUids.diff(mRunningWifiUids)) { 2038 mBatteryStats.noteWifiRunningChanged(mLastRunningWifiUids, 2039 mRunningWifiUids); 2040 mLastRunningWifiUids.set(mRunningWifiUids); 2041 } 2042 } else { 2043 // Now being started, report it. 2044 mBatteryStats.noteWifiRunning(mRunningWifiUids); 2045 mLastRunningWifiUids.set(mRunningWifiUids); 2046 mReportedRunning = true; 2047 } 2048 } else { 2049 if (mReportedRunning) { 2050 // Last reported we were running, time to stop. 2051 mBatteryStats.noteWifiStopped(mLastRunningWifiUids); 2052 mLastRunningWifiUids.clear(); 2053 mReportedRunning = false; 2054 } 2055 } 2056 mWakeLock.setWorkSource(newSource); 2057 } catch (RemoteException ignore) { 2058 } 2059 } 2060 } 2061 2062 public void dumpIpManager(FileDescriptor fd, PrintWriter pw, String[] args) { 2063 mIpManager.dump(fd, pw, args); 2064 } 2065 2066 @Override 2067 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2068 if (args.length > 1 && WifiMetrics.PROTO_DUMP_ARG.equals(args[0]) 2069 && WifiMetrics.CLEAN_DUMP_ARG.equals(args[1])) { 2070 // Dump only wifi metrics serialized proto bytes (base64) 2071 updateWifiMetrics(); 2072 mWifiMetrics.dump(fd, pw, args); 2073 return; 2074 } 2075 super.dump(fd, pw, args); 2076 mSupplicantStateTracker.dump(fd, pw, args); 2077 pw.println("mLinkProperties " + mLinkProperties); 2078 pw.println("mWifiInfo " + mWifiInfo); 2079 pw.println("mDhcpResults " + mDhcpResults); 2080 pw.println("mNetworkInfo " + mNetworkInfo); 2081 pw.println("mLastSignalLevel " + mLastSignalLevel); 2082 pw.println("mLastBssid " + mLastBssid); 2083 pw.println("mLastNetworkId " + mLastNetworkId); 2084 pw.println("mOperationalMode " + mOperationalMode); 2085 pw.println("mUserWantsSuspendOpt " + mUserWantsSuspendOpt); 2086 pw.println("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2087 pw.println("mSystemSupportsFastBssTransition " 2088 + mWifiNative.getSystemSupportsFastBssTransition()); 2089 if (mCountryCode.getCountryCodeSentToDriver() != null) { 2090 pw.println("CountryCode sent to driver " + mCountryCode.getCountryCodeSentToDriver()); 2091 } else { 2092 if (mCountryCode.getCountryCode() != null) { 2093 pw.println("CountryCode: " + 2094 mCountryCode.getCountryCode() + " was not sent to driver"); 2095 } else { 2096 pw.println("CountryCode was not initialized"); 2097 } 2098 } 2099 if (mNetworkFactory != null) { 2100 mNetworkFactory.dump(fd, pw, args); 2101 } else { 2102 pw.println("mNetworkFactory is not initialized"); 2103 } 2104 2105 if (mUntrustedNetworkFactory != null) { 2106 mUntrustedNetworkFactory.dump(fd, pw, args); 2107 } else { 2108 pw.println("mUntrustedNetworkFactory is not initialized"); 2109 } 2110 pw.println("Wlan Wake Reasons:" + mWifiNative.getWlanWakeReasonCount()); 2111 pw.println(); 2112 updateWifiMetrics(); 2113 mWifiMetrics.dump(fd, pw, args); 2114 pw.println(); 2115 2116 mWifiConfigManager.dump(fd, pw, args); 2117 pw.println(); 2118 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_USER_ACTION); 2119 mWifiDiagnostics.dump(fd, pw, args); 2120 dumpIpManager(fd, pw, args); 2121 mWifiNetworkSelector.dump(fd, pw, args); 2122 } 2123 2124 public void handleUserSwitch(int userId) { 2125 sendMessage(CMD_USER_SWITCH, userId); 2126 } 2127 2128 public void handleUserUnlock(int userId) { 2129 sendMessage(CMD_USER_UNLOCK, userId); 2130 } 2131 2132 public void handleUserStop(int userId) { 2133 sendMessage(CMD_USER_STOP, userId); 2134 } 2135 2136 /** 2137 * ****************************************************** 2138 * Internal private functions 2139 * ****************************************************** 2140 */ 2141 2142 private void logStateAndMessage(Message message, State state) { 2143 messageHandlingStatus = 0; 2144 if (mVerboseLoggingEnabled) { 2145 logd(" " + state.getClass().getSimpleName() + " " + getLogRecString(message)); 2146 } 2147 } 2148 2149 /** 2150 * helper, prints the milli time since boot wi and w/o suspended time 2151 */ 2152 String printTime() { 2153 StringBuilder sb = new StringBuilder(); 2154 sb.append(" rt=").append(mClock.getUptimeSinceBootMillis()); 2155 sb.append("/").append(mClock.getElapsedSinceBootMillis()); 2156 return sb.toString(); 2157 } 2158 2159 /** 2160 * Return the additional string to be logged by LogRec, default 2161 * 2162 * @param msg that was processed 2163 * @return information to be logged as a String 2164 */ 2165 @Override 2166 protected String getLogRecString(Message msg) { 2167 WifiConfiguration config; 2168 Long now; 2169 String report; 2170 String key; 2171 StringBuilder sb = new StringBuilder(); 2172 if (mScreenOn) { 2173 sb.append("!"); 2174 } 2175 if (messageHandlingStatus != MESSAGE_HANDLING_STATUS_UNKNOWN) { 2176 sb.append("(").append(messageHandlingStatus).append(")"); 2177 } 2178 sb.append(smToString(msg)); 2179 if (msg.sendingUid > 0 && msg.sendingUid != Process.WIFI_UID) { 2180 sb.append(" uid=" + msg.sendingUid); 2181 } 2182 sb.append(" ").append(printTime()); 2183 switch (msg.what) { 2184 case CMD_START_SCAN: 2185 now = mClock.getWallClockMillis(); 2186 sb.append(" "); 2187 sb.append(Integer.toString(msg.arg1)); 2188 sb.append(" "); 2189 sb.append(Integer.toString(msg.arg2)); 2190 sb.append(" ic="); 2191 sb.append(Integer.toString(sScanAlarmIntentCount)); 2192 if (msg.obj != null) { 2193 Bundle bundle = (Bundle) msg.obj; 2194 Long request = bundle.getLong(SCAN_REQUEST_TIME, 0); 2195 if (request != 0) { 2196 sb.append(" proc(ms):").append(now - request); 2197 } 2198 } 2199 if (mIsScanOngoing) sb.append(" onGoing"); 2200 if (mIsFullScanOngoing) sb.append(" full"); 2201 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2202 sb.append(" f=").append(mWifiInfo.getFrequency()); 2203 sb.append(" sc=").append(mWifiInfo.score); 2204 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2205 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2206 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2207 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2208 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2209 if (lastScanFreqs != null) { 2210 sb.append(" list="); 2211 for(int freq : lastScanFreqs) { 2212 sb.append(freq).append(","); 2213 } 2214 } 2215 report = reportOnTime(); 2216 if (report != null) { 2217 sb.append(" ").append(report); 2218 } 2219 break; 2220 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 2221 sb.append(" "); 2222 sb.append(Integer.toString(msg.arg1)); 2223 sb.append(" "); 2224 sb.append(Integer.toString(msg.arg2)); 2225 StateChangeResult stateChangeResult = (StateChangeResult) msg.obj; 2226 if (stateChangeResult != null) { 2227 sb.append(stateChangeResult.toString()); 2228 } 2229 break; 2230 case WifiManager.SAVE_NETWORK: 2231 sb.append(" "); 2232 sb.append(Integer.toString(msg.arg1)); 2233 sb.append(" "); 2234 sb.append(Integer.toString(msg.arg2)); 2235 config = (WifiConfiguration) msg.obj; 2236 if (config != null) { 2237 sb.append(" ").append(config.configKey()); 2238 sb.append(" nid=").append(config.networkId); 2239 if (config.hiddenSSID) { 2240 sb.append(" hidden"); 2241 } 2242 if (config.preSharedKey != null 2243 && !config.preSharedKey.equals("*")) { 2244 sb.append(" hasPSK"); 2245 } 2246 if (config.ephemeral) { 2247 sb.append(" ephemeral"); 2248 } 2249 if (config.selfAdded) { 2250 sb.append(" selfAdded"); 2251 } 2252 sb.append(" cuid=").append(config.creatorUid); 2253 sb.append(" suid=").append(config.lastUpdateUid); 2254 } 2255 break; 2256 case WifiManager.FORGET_NETWORK: 2257 sb.append(" "); 2258 sb.append(Integer.toString(msg.arg1)); 2259 sb.append(" "); 2260 sb.append(Integer.toString(msg.arg2)); 2261 config = (WifiConfiguration) msg.obj; 2262 if (config != null) { 2263 sb.append(" ").append(config.configKey()); 2264 sb.append(" nid=").append(config.networkId); 2265 if (config.hiddenSSID) { 2266 sb.append(" hidden"); 2267 } 2268 if (config.preSharedKey != null) { 2269 sb.append(" hasPSK"); 2270 } 2271 if (config.ephemeral) { 2272 sb.append(" ephemeral"); 2273 } 2274 if (config.selfAdded) { 2275 sb.append(" selfAdded"); 2276 } 2277 sb.append(" cuid=").append(config.creatorUid); 2278 sb.append(" suid=").append(config.lastUpdateUid); 2279 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2280 config.getNetworkSelectionStatus(); 2281 sb.append(" ajst=").append( 2282 netWorkSelectionStatus.getNetworkStatusString()); 2283 } 2284 break; 2285 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 2286 sb.append(" "); 2287 sb.append(Integer.toString(msg.arg1)); 2288 sb.append(" "); 2289 sb.append(Integer.toString(msg.arg2)); 2290 String bssid = (String) msg.obj; 2291 if (bssid != null && bssid.length() > 0) { 2292 sb.append(" "); 2293 sb.append(bssid); 2294 } 2295 sb.append(" blacklist=" + Boolean.toString(didBlackListBSSID)); 2296 break; 2297 case WifiMonitor.SCAN_RESULTS_EVENT: 2298 sb.append(" "); 2299 sb.append(Integer.toString(msg.arg1)); 2300 sb.append(" "); 2301 sb.append(Integer.toString(msg.arg2)); 2302 if (mScanResults != null) { 2303 sb.append(" found="); 2304 sb.append(mScanResults.size()); 2305 } 2306 sb.append(" known=").append(mNumScanResultsKnown); 2307 sb.append(" got=").append(mNumScanResultsReturned); 2308 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2309 sb.append(String.format(" con=%d", mConnectionReqCount)); 2310 sb.append(String.format(" untrustedcn=%d", mUntrustedReqCount)); 2311 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2312 if (key != null) { 2313 sb.append(" last=").append(key); 2314 } 2315 break; 2316 case WifiMonitor.SCAN_FAILED_EVENT: 2317 break; 2318 case WifiMonitor.NETWORK_CONNECTION_EVENT: 2319 sb.append(" "); 2320 sb.append(Integer.toString(msg.arg1)); 2321 sb.append(" "); 2322 sb.append(Integer.toString(msg.arg2)); 2323 sb.append(" ").append(mLastBssid); 2324 sb.append(" nid=").append(mLastNetworkId); 2325 config = getCurrentWifiConfiguration(); 2326 if (config != null) { 2327 sb.append(" ").append(config.configKey()); 2328 } 2329 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2330 if (key != null) { 2331 sb.append(" last=").append(key); 2332 } 2333 break; 2334 case CMD_TARGET_BSSID: 2335 case CMD_ASSOCIATED_BSSID: 2336 sb.append(" "); 2337 sb.append(Integer.toString(msg.arg1)); 2338 sb.append(" "); 2339 sb.append(Integer.toString(msg.arg2)); 2340 if (msg.obj != null) { 2341 sb.append(" BSSID=").append((String) msg.obj); 2342 } 2343 if (mTargetRoamBSSID != null) { 2344 sb.append(" Target=").append(mTargetRoamBSSID); 2345 } 2346 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2347 break; 2348 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 2349 if (msg.obj != null) { 2350 sb.append(" ").append((String) msg.obj); 2351 } 2352 sb.append(" nid=").append(msg.arg1); 2353 sb.append(" reason=").append(msg.arg2); 2354 if (mLastBssid != null) { 2355 sb.append(" lastbssid=").append(mLastBssid); 2356 } 2357 if (mWifiInfo.getFrequency() != -1) { 2358 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2359 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2360 } 2361 if (isLinkDebouncing()) { 2362 sb.append(" debounce"); 2363 } 2364 break; 2365 case WifiMonitor.SSID_TEMP_DISABLED: 2366 case WifiMonitor.SSID_REENABLED: 2367 sb.append(" nid=").append(msg.arg1); 2368 if (msg.obj != null) { 2369 sb.append(" ").append((String) msg.obj); 2370 } 2371 config = getCurrentWifiConfiguration(); 2372 if (config != null) { 2373 WifiConfiguration.NetworkSelectionStatus netWorkSelectionStatus = 2374 config.getNetworkSelectionStatus(); 2375 sb.append(" cur=").append(config.configKey()); 2376 sb.append(" ajst=").append(netWorkSelectionStatus.getNetworkStatusString()); 2377 if (config.selfAdded) { 2378 sb.append(" selfAdded"); 2379 } 2380 if (config.status != 0) { 2381 sb.append(" st=").append(config.status); 2382 sb.append(" rs=").append( 2383 netWorkSelectionStatus.getNetworkDisableReasonString()); 2384 } 2385 if (config.lastConnected != 0) { 2386 now = mClock.getWallClockMillis(); 2387 sb.append(" lastconn=").append(now - config.lastConnected).append("(ms)"); 2388 } 2389 if (mLastBssid != null) { 2390 sb.append(" lastbssid=").append(mLastBssid); 2391 } 2392 if (mWifiInfo.getFrequency() != -1) { 2393 sb.append(" freq=").append(mWifiInfo.getFrequency()); 2394 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2395 sb.append(" bssid=").append(mWifiInfo.getBSSID()); 2396 } 2397 } 2398 break; 2399 case CMD_RSSI_POLL: 2400 case CMD_UNWANTED_NETWORK: 2401 case WifiManager.RSSI_PKTCNT_FETCH: 2402 sb.append(" "); 2403 sb.append(Integer.toString(msg.arg1)); 2404 sb.append(" "); 2405 sb.append(Integer.toString(msg.arg2)); 2406 if (mWifiInfo.getSSID() != null) 2407 if (mWifiInfo.getSSID() != null) 2408 sb.append(" ").append(mWifiInfo.getSSID()); 2409 if (mWifiInfo.getBSSID() != null) 2410 sb.append(" ").append(mWifiInfo.getBSSID()); 2411 sb.append(" rssi=").append(mWifiInfo.getRssi()); 2412 sb.append(" f=").append(mWifiInfo.getFrequency()); 2413 sb.append(" sc=").append(mWifiInfo.score); 2414 sb.append(" link=").append(mWifiInfo.getLinkSpeed()); 2415 sb.append(String.format(" tx=%.1f,", mWifiInfo.txSuccessRate)); 2416 sb.append(String.format(" %.1f,", mWifiInfo.txRetriesRate)); 2417 sb.append(String.format(" %.1f ", mWifiInfo.txBadRate)); 2418 sb.append(String.format(" rx=%.1f", mWifiInfo.rxSuccessRate)); 2419 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2420 report = reportOnTime(); 2421 if (report != null) { 2422 sb.append(" ").append(report); 2423 } 2424 if (mWifiScoreReport.isLastReportValid()) { 2425 sb.append(mWifiScoreReport.getLastReport()); 2426 } 2427 break; 2428 case CMD_START_CONNECT: 2429 case WifiManager.CONNECT_NETWORK: 2430 sb.append(" "); 2431 sb.append(Integer.toString(msg.arg1)); 2432 sb.append(" "); 2433 sb.append(Integer.toString(msg.arg2)); 2434 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2435 if (config != null) { 2436 sb.append(" ").append(config.configKey()); 2437 if (config.visibility != null) { 2438 sb.append(" ").append(config.visibility.toString()); 2439 } 2440 } 2441 if (mTargetRoamBSSID != null) { 2442 sb.append(" ").append(mTargetRoamBSSID); 2443 } 2444 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2445 config = getCurrentWifiConfiguration(); 2446 if (config != null) { 2447 sb.append(config.configKey()); 2448 if (config.visibility != null) { 2449 sb.append(" ").append(config.visibility.toString()); 2450 } 2451 } 2452 break; 2453 case CMD_START_ROAM: 2454 sb.append(" "); 2455 sb.append(Integer.toString(msg.arg1)); 2456 sb.append(" "); 2457 sb.append(Integer.toString(msg.arg2)); 2458 ScanResult result = (ScanResult) msg.obj; 2459 if (result != null) { 2460 now = mClock.getWallClockMillis(); 2461 sb.append(" bssid=").append(result.BSSID); 2462 sb.append(" rssi=").append(result.level); 2463 sb.append(" freq=").append(result.frequency); 2464 if (result.seen > 0 && result.seen < now) { 2465 sb.append(" seen=").append(now - result.seen); 2466 } else { 2467 // Somehow the timestamp for this scan result is inconsistent 2468 sb.append(" !seen=").append(result.seen); 2469 } 2470 } 2471 if (mTargetRoamBSSID != null) { 2472 sb.append(" ").append(mTargetRoamBSSID); 2473 } 2474 sb.append(" roam=").append(Boolean.toString(mAutoRoaming)); 2475 sb.append(" fail count=").append(Integer.toString(mRoamFailCount)); 2476 break; 2477 case CMD_ADD_OR_UPDATE_NETWORK: 2478 sb.append(" "); 2479 sb.append(Integer.toString(msg.arg1)); 2480 sb.append(" "); 2481 sb.append(Integer.toString(msg.arg2)); 2482 if (msg.obj != null) { 2483 config = (WifiConfiguration) msg.obj; 2484 sb.append(" ").append(config.configKey()); 2485 sb.append(" prio=").append(config.priority); 2486 sb.append(" status=").append(config.status); 2487 if (config.BSSID != null) { 2488 sb.append(" ").append(config.BSSID); 2489 } 2490 WifiConfiguration curConfig = getCurrentWifiConfiguration(); 2491 if (curConfig != null) { 2492 if (curConfig.configKey().equals(config.configKey())) { 2493 sb.append(" is current"); 2494 } else { 2495 sb.append(" current=").append(curConfig.configKey()); 2496 sb.append(" prio=").append(curConfig.priority); 2497 sb.append(" status=").append(curConfig.status); 2498 } 2499 } 2500 } 2501 break; 2502 case WifiManager.DISABLE_NETWORK: 2503 case CMD_ENABLE_NETWORK: 2504 sb.append(" "); 2505 sb.append(Integer.toString(msg.arg1)); 2506 sb.append(" "); 2507 sb.append(Integer.toString(msg.arg2)); 2508 key = mWifiConfigManager.getLastSelectedNetworkConfigKey(); 2509 if (key != null) { 2510 sb.append(" last=").append(key); 2511 } 2512 config = mWifiConfigManager.getConfiguredNetwork(msg.arg1); 2513 if (config != null && (key == null || !config.configKey().equals(key))) { 2514 sb.append(" target=").append(key); 2515 } 2516 break; 2517 case CMD_GET_CONFIGURED_NETWORKS: 2518 sb.append(" "); 2519 sb.append(Integer.toString(msg.arg1)); 2520 sb.append(" "); 2521 sb.append(Integer.toString(msg.arg2)); 2522 sb.append(" num=").append(mWifiConfigManager.getConfiguredNetworks().size()); 2523 break; 2524 case DhcpClient.CMD_PRE_DHCP_ACTION: 2525 sb.append(" "); 2526 sb.append(Integer.toString(msg.arg1)); 2527 sb.append(" "); 2528 sb.append(Integer.toString(msg.arg2)); 2529 sb.append(" txpkts=").append(mWifiInfo.txSuccess); 2530 sb.append(",").append(mWifiInfo.txBad); 2531 sb.append(",").append(mWifiInfo.txRetries); 2532 break; 2533 case DhcpClient.CMD_POST_DHCP_ACTION: 2534 sb.append(" "); 2535 sb.append(Integer.toString(msg.arg1)); 2536 sb.append(" "); 2537 sb.append(Integer.toString(msg.arg2)); 2538 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2539 sb.append(" OK "); 2540 } else if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2541 sb.append(" FAIL "); 2542 } 2543 if (mLinkProperties != null) { 2544 sb.append(" "); 2545 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2546 } 2547 break; 2548 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 2549 sb.append(" "); 2550 sb.append(Integer.toString(msg.arg1)); 2551 sb.append(" "); 2552 sb.append(Integer.toString(msg.arg2)); 2553 if (msg.obj != null) { 2554 NetworkInfo info = (NetworkInfo) msg.obj; 2555 NetworkInfo.State state = info.getState(); 2556 NetworkInfo.DetailedState detailedState = info.getDetailedState(); 2557 if (state != null) { 2558 sb.append(" st=").append(state); 2559 } 2560 if (detailedState != null) { 2561 sb.append("/").append(detailedState); 2562 } 2563 } 2564 break; 2565 case CMD_IP_CONFIGURATION_LOST: 2566 int count = -1; 2567 WifiConfiguration c = getCurrentWifiConfiguration(); 2568 if (c != null) { 2569 count = c.getNetworkSelectionStatus().getDisableReasonCounter( 2570 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 2571 } 2572 sb.append(" "); 2573 sb.append(Integer.toString(msg.arg1)); 2574 sb.append(" "); 2575 sb.append(Integer.toString(msg.arg2)); 2576 sb.append(" failures: "); 2577 sb.append(Integer.toString(count)); 2578 sb.append("/"); 2579 sb.append(Integer.toString(mFacade.getIntegerSetting( 2580 mContext, Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT, 0))); 2581 if (mWifiInfo.getBSSID() != null) { 2582 sb.append(" ").append(mWifiInfo.getBSSID()); 2583 } 2584 sb.append(String.format(" bcn=%d", mRunningBeaconCount)); 2585 break; 2586 case CMD_UPDATE_LINKPROPERTIES: 2587 sb.append(" "); 2588 sb.append(Integer.toString(msg.arg1)); 2589 sb.append(" "); 2590 sb.append(Integer.toString(msg.arg2)); 2591 if (mLinkProperties != null) { 2592 sb.append(" "); 2593 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2594 } 2595 break; 2596 case CMD_IP_REACHABILITY_LOST: 2597 if (msg.obj != null) { 2598 sb.append(" ").append((String) msg.obj); 2599 } 2600 break; 2601 case CMD_INSTALL_PACKET_FILTER: 2602 sb.append(" len=" + ((byte[])msg.obj).length); 2603 break; 2604 case CMD_SET_FALLBACK_PACKET_FILTERING: 2605 sb.append(" enabled=" + (boolean)msg.obj); 2606 break; 2607 case CMD_ROAM_WATCHDOG_TIMER: 2608 sb.append(" "); 2609 sb.append(Integer.toString(msg.arg1)); 2610 sb.append(" "); 2611 sb.append(Integer.toString(msg.arg2)); 2612 sb.append(" cur=").append(roamWatchdogCount); 2613 break; 2614 case CMD_DISCONNECTING_WATCHDOG_TIMER: 2615 sb.append(" "); 2616 sb.append(Integer.toString(msg.arg1)); 2617 sb.append(" "); 2618 sb.append(Integer.toString(msg.arg2)); 2619 sb.append(" cur=").append(disconnectingWatchdogCount); 2620 break; 2621 case CMD_START_RSSI_MONITORING_OFFLOAD: 2622 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 2623 case CMD_RSSI_THRESHOLD_BREACH: 2624 sb.append(" rssi="); 2625 sb.append(Integer.toString(msg.arg1)); 2626 sb.append(" thresholds="); 2627 sb.append(Arrays.toString(mRssiRanges)); 2628 break; 2629 case CMD_USER_SWITCH: 2630 sb.append(" userId="); 2631 sb.append(Integer.toString(msg.arg1)); 2632 break; 2633 case CMD_IPV4_PROVISIONING_SUCCESS: 2634 sb.append(" "); 2635 if (msg.arg1 == DhcpClient.DHCP_SUCCESS) { 2636 sb.append("DHCP_OK"); 2637 } else if (msg.arg1 == CMD_STATIC_IP_SUCCESS) { 2638 sb.append("STATIC_OK"); 2639 } else { 2640 sb.append(Integer.toString(msg.arg1)); 2641 } 2642 break; 2643 case CMD_IPV4_PROVISIONING_FAILURE: 2644 sb.append(" "); 2645 if (msg.arg1 == DhcpClient.DHCP_FAILURE) { 2646 sb.append("DHCP_FAIL"); 2647 } else if (msg.arg1 == CMD_STATIC_IP_FAILURE) { 2648 sb.append("STATIC_FAIL"); 2649 } else { 2650 sb.append(Integer.toString(msg.arg1)); 2651 } 2652 break; 2653 default: 2654 sb.append(" "); 2655 sb.append(Integer.toString(msg.arg1)); 2656 sb.append(" "); 2657 sb.append(Integer.toString(msg.arg2)); 2658 break; 2659 } 2660 2661 return sb.toString(); 2662 } 2663 2664 private void handleScreenStateChanged(boolean screenOn) { 2665 mScreenOn = screenOn; 2666 if (mVerboseLoggingEnabled) { 2667 logd(" handleScreenStateChanged Enter: screenOn=" + screenOn 2668 + " mUserWantsSuspendOpt=" + mUserWantsSuspendOpt 2669 + " state " + getCurrentState().getName() 2670 + " suppState:" + mSupplicantStateTracker.getSupplicantStateName()); 2671 } 2672 enableRssiPolling(screenOn); 2673 if (mUserWantsSuspendOpt.get()) { 2674 int shouldReleaseWakeLock = 0; 2675 if (screenOn) { 2676 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 0, shouldReleaseWakeLock); 2677 } else { 2678 if (isConnected()) { 2679 // Allow 2s for suspend optimizations to be set 2680 mSuspendWakeLock.acquire(2000); 2681 shouldReleaseWakeLock = 1; 2682 } 2683 sendMessage(CMD_SET_SUSPEND_OPT_ENABLED, 1, shouldReleaseWakeLock); 2684 } 2685 } 2686 2687 getWifiLinkLayerStats(); 2688 mOnTimeScreenStateChange = mOnTime; 2689 lastScreenStateChangeTimeStamp = lastLinkLayerStatsUpdate; 2690 2691 mWifiMetrics.setScreenState(screenOn); 2692 2693 if (mWifiConnectivityManager != null) { 2694 mWifiConnectivityManager.handleScreenStateChanged(screenOn); 2695 } 2696 2697 if (mVerboseLoggingEnabled) log("handleScreenStateChanged Exit: " + screenOn); 2698 } 2699 2700 private void checkAndSetConnectivityInstance() { 2701 if (mCm == null) { 2702 mCm = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 2703 } 2704 } 2705 2706 private void setSuspendOptimizationsNative(int reason, boolean enabled) { 2707 if (mVerboseLoggingEnabled) { 2708 log("setSuspendOptimizationsNative: " + reason + " " + enabled 2709 + " -want " + mUserWantsSuspendOpt.get() 2710 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2711 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2712 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2713 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2714 } 2715 //mWifiNative.setSuspendOptimizations(enabled); 2716 2717 if (enabled) { 2718 mSuspendOptNeedsDisabled &= ~reason; 2719 /* None of dhcp, screen or highperf need it disabled and user wants it enabled */ 2720 if (mSuspendOptNeedsDisabled == 0 && mUserWantsSuspendOpt.get()) { 2721 if (mVerboseLoggingEnabled) { 2722 log("setSuspendOptimizationsNative do it " + reason + " " + enabled 2723 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 2724 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 2725 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 2726 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 2727 } 2728 mWifiNative.setSuspendOptimizations(true); 2729 } 2730 } else { 2731 mSuspendOptNeedsDisabled |= reason; 2732 mWifiNative.setSuspendOptimizations(false); 2733 } 2734 } 2735 2736 private void setSuspendOptimizations(int reason, boolean enabled) { 2737 if (mVerboseLoggingEnabled) log("setSuspendOptimizations: " + reason + " " + enabled); 2738 if (enabled) { 2739 mSuspendOptNeedsDisabled &= ~reason; 2740 } else { 2741 mSuspendOptNeedsDisabled |= reason; 2742 } 2743 if (mVerboseLoggingEnabled) log("mSuspendOptNeedsDisabled " + mSuspendOptNeedsDisabled); 2744 } 2745 2746 private void setWifiState(int wifiState) { 2747 final int previousWifiState = mWifiState.get(); 2748 2749 try { 2750 if (wifiState == WIFI_STATE_ENABLED) { 2751 mBatteryStats.noteWifiOn(); 2752 } else if (wifiState == WIFI_STATE_DISABLED) { 2753 mBatteryStats.noteWifiOff(); 2754 } 2755 } catch (RemoteException e) { 2756 loge("Failed to note battery stats in wifi"); 2757 } 2758 2759 mWifiState.set(wifiState); 2760 2761 if (mVerboseLoggingEnabled) log("setWifiState: " + syncGetWifiStateByName()); 2762 2763 final Intent intent = new Intent(WifiManager.WIFI_STATE_CHANGED_ACTION); 2764 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2765 intent.putExtra(WifiManager.EXTRA_WIFI_STATE, wifiState); 2766 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_STATE, previousWifiState); 2767 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2768 } 2769 2770 private void setWifiApState(int wifiApState, int reason) { 2771 final int previousWifiApState = mWifiApState.get(); 2772 2773 try { 2774 if (wifiApState == WIFI_AP_STATE_ENABLED) { 2775 mBatteryStats.noteWifiOn(); 2776 } else if (wifiApState == WIFI_AP_STATE_DISABLED) { 2777 mBatteryStats.noteWifiOff(); 2778 } 2779 } catch (RemoteException e) { 2780 loge("Failed to note battery stats in wifi"); 2781 } 2782 2783 // Update state 2784 mWifiApState.set(wifiApState); 2785 2786 if (mVerboseLoggingEnabled) log("setWifiApState: " + syncGetWifiApStateByName()); 2787 2788 final Intent intent = new Intent(WifiManager.WIFI_AP_STATE_CHANGED_ACTION); 2789 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 2790 intent.putExtra(WifiManager.EXTRA_WIFI_AP_STATE, wifiApState); 2791 intent.putExtra(WifiManager.EXTRA_PREVIOUS_WIFI_AP_STATE, previousWifiApState); 2792 if (wifiApState == WifiManager.WIFI_AP_STATE_FAILED) { 2793 //only set reason number when softAP start failed 2794 intent.putExtra(WifiManager.EXTRA_WIFI_AP_FAILURE_REASON, reason); 2795 } 2796 2797 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 2798 } 2799 2800 private void setScanResults() { 2801 mNumScanResultsKnown = 0; 2802 mNumScanResultsReturned = 0; 2803 2804 ArrayList<ScanDetail> scanResults = mWifiNative.getScanResults(); 2805 2806 if (scanResults.isEmpty()) { 2807 mScanResults = new ArrayList<>(); 2808 return; 2809 } 2810 2811 // TODO(b/31065385): mWifiConfigManager.trimANQPCache(false); 2812 2813 boolean connected = mLastBssid != null; 2814 long activeBssid = 0L; 2815 if (connected) { 2816 try { 2817 activeBssid = Utils.parseMac(mLastBssid); 2818 } catch (IllegalArgumentException iae) { 2819 connected = false; 2820 } 2821 } 2822 2823 synchronized (mScanResultsLock) { 2824 mScanResults = scanResults; 2825 mNumScanResultsReturned = mScanResults.size(); 2826 } 2827 2828 if (isLinkDebouncing()) { 2829 // If debouncing, we dont re-select a SSID or BSSID hence 2830 // there is no need to call the network selection code 2831 // in WifiAutoJoinController, instead, 2832 // just try to reconnect to the same SSID by triggering a roam 2833 // The third parameter 1 means roam not from network selection but debouncing 2834 sendMessage(CMD_START_ROAM, mLastNetworkId, 1, null); 2835 } 2836 } 2837 2838 /* 2839 * Fetch RSSI, linkspeed, and frequency on current connection 2840 */ 2841 private void fetchRssiLinkSpeedAndFrequencyNative() { 2842 Integer newRssi = null; 2843 Integer newLinkSpeed = null; 2844 Integer newFrequency = null; 2845 WifiNative.SignalPollResult pollResult = mWifiNative.signalPoll(); 2846 if (pollResult == null) { 2847 return; 2848 } 2849 2850 newRssi = pollResult.currentRssi; 2851 newLinkSpeed = pollResult.txBitrate; 2852 newFrequency = pollResult.associationFrequency; 2853 2854 if (mVerboseLoggingEnabled) { 2855 logd("fetchRssiLinkSpeedAndFrequencyNative rssi=" + newRssi + 2856 " linkspeed=" + newLinkSpeed + " freq=" + newFrequency); 2857 } 2858 2859 if (newRssi != null && newRssi > WifiInfo.INVALID_RSSI && newRssi < WifiInfo.MAX_RSSI) { 2860 // screen out invalid values 2861 /* some implementations avoid negative values by adding 256 2862 * so we need to adjust for that here. 2863 */ 2864 if (newRssi > 0) newRssi -= 256; 2865 mWifiInfo.setRssi(newRssi); 2866 /* 2867 * Log the rssi poll value in metrics 2868 */ 2869 mWifiMetrics.incrementRssiPollRssiCount(newRssi); 2870 /* 2871 * Rather then sending the raw RSSI out every time it 2872 * changes, we precalculate the signal level that would 2873 * be displayed in the status bar, and only send the 2874 * broadcast if that much more coarse-grained number 2875 * changes. This cuts down greatly on the number of 2876 * broadcasts, at the cost of not informing others 2877 * interested in RSSI of all the changes in signal 2878 * level. 2879 */ 2880 int newSignalLevel = WifiManager.calculateSignalLevel(newRssi, WifiManager.RSSI_LEVELS); 2881 if (newSignalLevel != mLastSignalLevel) { 2882 updateCapabilities(getCurrentWifiConfiguration()); 2883 sendRssiChangeBroadcast(newRssi); 2884 } 2885 mLastSignalLevel = newSignalLevel; 2886 } else { 2887 mWifiInfo.setRssi(WifiInfo.INVALID_RSSI); 2888 updateCapabilities(getCurrentWifiConfiguration()); 2889 } 2890 2891 if (newLinkSpeed != null) { 2892 mWifiInfo.setLinkSpeed(newLinkSpeed); 2893 } 2894 if (newFrequency != null && newFrequency > 0) { 2895 if (ScanResult.is5GHz(newFrequency)) { 2896 mWifiConnectionStatistics.num5GhzConnected++; 2897 } 2898 if (ScanResult.is24GHz(newFrequency)) { 2899 mWifiConnectionStatistics.num24GhzConnected++; 2900 } 2901 mWifiInfo.setFrequency(newFrequency); 2902 } 2903 mWifiConfigManager.updateScanDetailCacheFromWifiInfo(mWifiInfo); 2904 } 2905 2906 // Polling has completed, hence we wont have a score anymore 2907 private void cleanWifiScore() { 2908 mWifiInfo.txBadRate = 0; 2909 mWifiInfo.txSuccessRate = 0; 2910 mWifiInfo.txRetriesRate = 0; 2911 mWifiInfo.rxSuccessRate = 0; 2912 mWifiScoreReport.reset(); 2913 } 2914 2915 private void updateLinkProperties(LinkProperties newLp) { 2916 if (mVerboseLoggingEnabled) { 2917 log("Link configuration changed for netId: " + mLastNetworkId 2918 + " old: " + mLinkProperties + " new: " + newLp); 2919 } 2920 // We own this instance of LinkProperties because IpManager passes us a copy. 2921 mLinkProperties = newLp; 2922 if (mNetworkAgent != null) { 2923 mNetworkAgent.sendLinkProperties(mLinkProperties); 2924 } 2925 2926 if (getNetworkDetailedState() == DetailedState.CONNECTED) { 2927 // If anything has changed and we're already connected, send out a notification. 2928 // TODO: Update all callers to use NetworkCallbacks and delete this. 2929 sendLinkConfigurationChangedBroadcast(); 2930 } 2931 2932 if (mVerboseLoggingEnabled) { 2933 StringBuilder sb = new StringBuilder(); 2934 sb.append("updateLinkProperties nid: " + mLastNetworkId); 2935 sb.append(" state: " + getNetworkDetailedState()); 2936 2937 if (mLinkProperties != null) { 2938 sb.append(" "); 2939 sb.append(getLinkPropertiesSummary(mLinkProperties)); 2940 } 2941 logd(sb.toString()); 2942 } 2943 } 2944 2945 /** 2946 * Clears all our link properties. 2947 */ 2948 private void clearLinkProperties() { 2949 // Clear the link properties obtained from DHCP. The only caller of this 2950 // function has already called IpManager#stop(), which clears its state. 2951 synchronized (mDhcpResultsLock) { 2952 if (mDhcpResults != null) { 2953 mDhcpResults.clear(); 2954 } 2955 } 2956 2957 // Now clear the merged link properties. 2958 mLinkProperties.clear(); 2959 if (mNetworkAgent != null) mNetworkAgent.sendLinkProperties(mLinkProperties); 2960 } 2961 2962 /** 2963 * try to update default route MAC address. 2964 */ 2965 private String updateDefaultRouteMacAddress(int timeout) { 2966 String address = null; 2967 for (RouteInfo route : mLinkProperties.getRoutes()) { 2968 if (route.isDefaultRoute() && route.hasGateway()) { 2969 InetAddress gateway = route.getGateway(); 2970 if (gateway instanceof Inet4Address) { 2971 if (mVerboseLoggingEnabled) { 2972 logd("updateDefaultRouteMacAddress found Ipv4 default :" 2973 + gateway.getHostAddress()); 2974 } 2975 address = macAddressFromRoute(gateway.getHostAddress()); 2976 /* The gateway's MAC address is known */ 2977 if ((address == null) && (timeout > 0)) { 2978 boolean reachable = false; 2979 TrafficStats.setThreadStatsTag(TrafficStats.TAG_SYSTEM_PROBE); 2980 try { 2981 reachable = gateway.isReachable(timeout); 2982 } catch (Exception e) { 2983 loge("updateDefaultRouteMacAddress exception reaching :" 2984 + gateway.getHostAddress()); 2985 2986 } finally { 2987 TrafficStats.clearThreadStatsTag(); 2988 if (reachable == true) { 2989 2990 address = macAddressFromRoute(gateway.getHostAddress()); 2991 if (mVerboseLoggingEnabled) { 2992 logd("updateDefaultRouteMacAddress reachable (tried again) :" 2993 + gateway.getHostAddress() + " found " + address); 2994 } 2995 } 2996 } 2997 } 2998 if (address != null) { 2999 mWifiConfigManager.setNetworkDefaultGwMacAddress(mLastNetworkId, address); 3000 } 3001 } 3002 } 3003 } 3004 return address; 3005 } 3006 3007 private void sendRssiChangeBroadcast(final int newRssi) { 3008 try { 3009 mBatteryStats.noteWifiRssiChanged(newRssi); 3010 } catch (RemoteException e) { 3011 // Won't happen. 3012 } 3013 Intent intent = new Intent(WifiManager.RSSI_CHANGED_ACTION); 3014 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3015 intent.putExtra(WifiManager.EXTRA_NEW_RSSI, newRssi); 3016 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3017 } 3018 3019 private void sendNetworkStateChangeBroadcast(String bssid) { 3020 Intent intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); 3021 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3022 intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, new NetworkInfo(mNetworkInfo)); 3023 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3024 if (bssid != null) 3025 intent.putExtra(WifiManager.EXTRA_BSSID, bssid); 3026 if (mNetworkInfo.getDetailedState() == DetailedState.VERIFYING_POOR_LINK || 3027 mNetworkInfo.getDetailedState() == DetailedState.CONNECTED) { 3028 // We no longer report MAC address to third-parties and our code does 3029 // not rely on this broadcast, so just send the default MAC address. 3030 fetchRssiLinkSpeedAndFrequencyNative(); 3031 WifiInfo sentWifiInfo = new WifiInfo(mWifiInfo); 3032 sentWifiInfo.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3033 intent.putExtra(WifiManager.EXTRA_WIFI_INFO, sentWifiInfo); 3034 } 3035 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 3036 } 3037 3038 private WifiInfo getWiFiInfoForUid(int uid) { 3039 if (Binder.getCallingUid() == Process.myUid()) { 3040 return mWifiInfo; 3041 } 3042 3043 WifiInfo result = new WifiInfo(mWifiInfo); 3044 result.setMacAddress(WifiInfo.DEFAULT_MAC_ADDRESS); 3045 3046 IBinder binder = mFacade.getService("package"); 3047 IPackageManager packageManager = IPackageManager.Stub.asInterface(binder); 3048 3049 try { 3050 if (packageManager.checkUidPermission(Manifest.permission.LOCAL_MAC_ADDRESS, 3051 uid) == PackageManager.PERMISSION_GRANTED) { 3052 result.setMacAddress(mWifiInfo.getMacAddress()); 3053 } 3054 } catch (RemoteException e) { 3055 Log.e(TAG, "Error checking receiver permission", e); 3056 } 3057 3058 return result; 3059 } 3060 3061 private void sendLinkConfigurationChangedBroadcast() { 3062 Intent intent = new Intent(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION); 3063 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3064 intent.putExtra(WifiManager.EXTRA_LINK_PROPERTIES, new LinkProperties(mLinkProperties)); 3065 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3066 } 3067 3068 private void sendSupplicantConnectionChangedBroadcast(boolean connected) { 3069 Intent intent = new Intent(WifiManager.SUPPLICANT_CONNECTION_CHANGE_ACTION); 3070 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 3071 intent.putExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, connected); 3072 mContext.sendBroadcastAsUser(intent, UserHandle.ALL); 3073 } 3074 3075 /** 3076 * Record the detailed state of a network. 3077 * 3078 * @param state the new {@code DetailedState} 3079 */ 3080 private boolean setNetworkDetailedState(NetworkInfo.DetailedState state) { 3081 boolean hidden = false; 3082 3083 if (isLinkDebouncing() || isRoaming()) { 3084 // There is generally a confusion in the system about colluding 3085 // WiFi Layer 2 state (as reported by supplicant) and the Network state 3086 // which leads to multiple confusion. 3087 // 3088 // If link is de-bouncing or roaming, we already have an IP address 3089 // as well we were connected and are doing L2 cycles of 3090 // reconnecting or renewing IP address to check that we still have it 3091 // This L2 link flapping should ne be reflected into the Network state 3092 // which is the state of the WiFi Network visible to Layer 3 and applications 3093 // Note that once debouncing and roaming are completed, we will 3094 // set the Network state to where it should be, or leave it as unchanged 3095 // 3096 hidden = true; 3097 } 3098 if (mVerboseLoggingEnabled) { 3099 log("setDetailed state, old =" 3100 + mNetworkInfo.getDetailedState() + " and new state=" + state 3101 + " hidden=" + hidden); 3102 } 3103 if (mNetworkInfo.getExtraInfo() != null && mWifiInfo.getSSID() != null 3104 && !mWifiInfo.getSSID().equals(WifiSsid.NONE)) { 3105 // Always indicate that SSID has changed 3106 if (!mNetworkInfo.getExtraInfo().equals(mWifiInfo.getSSID())) { 3107 if (mVerboseLoggingEnabled) { 3108 log("setDetailed state send new extra info" + mWifiInfo.getSSID()); 3109 } 3110 mNetworkInfo.setExtraInfo(mWifiInfo.getSSID()); 3111 sendNetworkStateChangeBroadcast(null); 3112 } 3113 } 3114 if (hidden == true) { 3115 return false; 3116 } 3117 3118 if (state != mNetworkInfo.getDetailedState()) { 3119 mNetworkInfo.setDetailedState(state, null, mWifiInfo.getSSID()); 3120 if (mNetworkAgent != null) { 3121 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3122 } 3123 sendNetworkStateChangeBroadcast(null); 3124 return true; 3125 } 3126 return false; 3127 } 3128 3129 private DetailedState getNetworkDetailedState() { 3130 return mNetworkInfo.getDetailedState(); 3131 } 3132 3133 private SupplicantState handleSupplicantStateChange(Message message) { 3134 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 3135 SupplicantState state = stateChangeResult.state; 3136 // Supplicant state change 3137 // [31-13] Reserved for future use 3138 // [8 - 0] Supplicant state (as defined in SupplicantState.java) 3139 // 50023 supplicant_state_changed (custom|1|5) 3140 mWifiInfo.setSupplicantState(state); 3141 // If we receive a supplicant state change with an empty SSID, 3142 // this implies that wpa_supplicant is already disconnected. 3143 // We should pretend we are still connected when linkDebouncing is on. 3144 if ((stateChangeResult.wifiSsid == null 3145 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) { 3146 return state; 3147 } 3148 // Network id is only valid when we start connecting 3149 if (SupplicantState.isConnecting(state)) { 3150 mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId)); 3151 } else { 3152 mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID); 3153 } 3154 3155 mWifiInfo.setBSSID(stateChangeResult.BSSID); 3156 3157 mWifiInfo.setSSID(stateChangeResult.wifiSsid); 3158 WifiConfiguration config = getCurrentWifiConfiguration(); 3159 if (config != null) { 3160 // Set meteredHint to true if the access network type of the connecting/connected AP 3161 // is a chargeable public network. 3162 ScanDetailCache scanDetailCache = mWifiConfigManager.getScanDetailCacheForNetwork( 3163 config.networkId); 3164 if (scanDetailCache != null) { 3165 ScanDetail scanDetail = scanDetailCache.getScanDetail(stateChangeResult.BSSID); 3166 if (scanDetail != null) { 3167 NetworkDetail networkDetail = scanDetail.getNetworkDetail(); 3168 if (networkDetail != null 3169 && networkDetail.getAnt() == NetworkDetail.Ant.ChargeablePublic) { 3170 mWifiInfo.setMeteredHint(true); 3171 } 3172 } 3173 } 3174 3175 mWifiInfo.setEphemeral(config.ephemeral); 3176 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3177 mWifiInfo.setMeteredHint(config.meteredHint); 3178 } 3179 } 3180 3181 mSupplicantStateTracker.sendMessage(Message.obtain(message)); 3182 3183 return state; 3184 } 3185 3186 /** 3187 * Resets the Wi-Fi Connections by clearing any state, resetting any sockets 3188 * using the interface, stopping DHCP & disabling interface 3189 */ 3190 private void handleNetworkDisconnect() { 3191 if (mVerboseLoggingEnabled) { 3192 log("handleNetworkDisconnect: Stopping DHCP and clearing IP" 3193 + " stack:" + Thread.currentThread().getStackTrace()[2].getMethodName() 3194 + " - " + Thread.currentThread().getStackTrace()[3].getMethodName() 3195 + " - " + Thread.currentThread().getStackTrace()[4].getMethodName() 3196 + " - " + Thread.currentThread().getStackTrace()[5].getMethodName()); 3197 } 3198 3199 stopRssiMonitoringOffload(); 3200 3201 clearTargetBssid("handleNetworkDisconnect"); 3202 3203 stopIpManager(); 3204 3205 /* Reset data structures */ 3206 mWifiScoreReport.reset(); 3207 mWifiInfo.reset(); 3208 mIsLinkDebouncing = false; 3209 /* Reset roaming parameters */ 3210 mAutoRoaming = false; 3211 3212 setNetworkDetailedState(DetailedState.DISCONNECTED); 3213 if (mNetworkAgent != null) { 3214 mNetworkAgent.sendNetworkInfo(mNetworkInfo); 3215 mNetworkAgent = null; 3216 } 3217 3218 /* Clear network properties */ 3219 clearLinkProperties(); 3220 3221 /* Cend event to CM & network change broadcast */ 3222 sendNetworkStateChangeBroadcast(mLastBssid); 3223 3224 mLastBssid = null; 3225 registerDisconnected(); 3226 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 3227 } 3228 3229 private void handleSupplicantConnectionLoss(boolean killSupplicant) { 3230 /* Socket connection can be lost when we do a graceful shutdown 3231 * or when the driver is hung. Ensure supplicant is stopped here. 3232 */ 3233 if (killSupplicant) { 3234 mWifiMonitor.stopAllMonitoring(); 3235 if (!mWifiNative.disableSupplicant()) { 3236 loge("Failed to disable supplicant after connection loss"); 3237 } 3238 } 3239 mWifiNative.closeSupplicantConnection(); 3240 sendSupplicantConnectionChangedBroadcast(false); 3241 setWifiState(WIFI_STATE_DISABLED); 3242 } 3243 3244 void handlePreDhcpSetup() { 3245 if (!mBluetoothConnectionActive) { 3246 /* 3247 * There are problems setting the Wi-Fi driver's power 3248 * mode to active when bluetooth coexistence mode is 3249 * enabled or sense. 3250 * <p> 3251 * We set Wi-Fi to active mode when 3252 * obtaining an IP address because we've found 3253 * compatibility issues with some routers with low power 3254 * mode. 3255 * <p> 3256 * In order for this active power mode to properly be set, 3257 * we disable coexistence mode until we're done with 3258 * obtaining an IP address. One exception is if we 3259 * are currently connected to a headset, since disabling 3260 * coexistence would interrupt that connection. 3261 */ 3262 // Disable the coexistence mode 3263 mWifiNative.setBluetoothCoexistenceMode( 3264 WifiNative.BLUETOOTH_COEXISTENCE_MODE_DISABLED); 3265 } 3266 3267 // Disable power save and suspend optimizations during DHCP 3268 // Note: The order here is important for now. Brcm driver changes 3269 // power settings when we control suspend mode optimizations. 3270 // TODO: Remove this comment when the driver is fixed. 3271 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, false); 3272 mWifiNative.setPowerSave(false); 3273 3274 // Update link layer stats 3275 getWifiLinkLayerStats(); 3276 3277 if (mWifiP2pChannel != null) { 3278 /* P2p discovery breaks dhcp, shut it down in order to get through this */ 3279 Message msg = new Message(); 3280 msg.what = WifiP2pServiceImpl.BLOCK_DISCOVERY; 3281 msg.arg1 = WifiP2pServiceImpl.ENABLED; 3282 msg.arg2 = DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE; 3283 msg.obj = WifiStateMachine.this; 3284 mWifiP2pChannel.sendMessage(msg); 3285 } else { 3286 // If the p2p service is not running, we can proceed directly. 3287 sendMessage(DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE); 3288 } 3289 } 3290 3291 void handlePostDhcpSetup() { 3292 /* Restore power save and suspend optimizations */ 3293 setSuspendOptimizationsNative(SUSPEND_DUE_TO_DHCP, true); 3294 mWifiNative.setPowerSave(true); 3295 3296 p2pSendMessage(WifiP2pServiceImpl.BLOCK_DISCOVERY, WifiP2pServiceImpl.DISABLED); 3297 3298 // Set the coexistence mode back to its default value 3299 mWifiNative.setBluetoothCoexistenceMode( 3300 WifiNative.BLUETOOTH_COEXISTENCE_MODE_SENSE); 3301 } 3302 3303 private static final long DIAGS_CONNECT_TIMEOUT_MILLIS = 60 * 1000; 3304 private long mDiagsConnectionStartMillis = -1; 3305 /** 3306 * Inform other components that a new connection attempt is starting. 3307 */ 3308 private void reportConnectionAttemptStart( 3309 WifiConfiguration config, String targetBSSID, int roamType) { 3310 mWifiMetrics.startConnectionEvent(config, targetBSSID, roamType); 3311 mDiagsConnectionStartMillis = mClock.getElapsedSinceBootMillis(); 3312 mWifiDiagnostics.reportConnectionEvent( 3313 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_STARTED); 3314 // TODO(b/35329124): Remove CMD_DIAGS_CONNECT_TIMEOUT, once WifiStateMachine 3315 // grows a proper CONNECTING state. 3316 sendMessageDelayed(CMD_DIAGS_CONNECT_TIMEOUT, 3317 mDiagsConnectionStartMillis, DIAGS_CONNECT_TIMEOUT_MILLIS); 3318 } 3319 3320 /** 3321 * Inform other components (WifiMetrics, WifiDiagnostics, etc.) that the current connection attempt 3322 * has concluded. 3323 */ 3324 private void reportConnectionAttemptEnd(int level2FailureCode, int connectivityFailureCode) { 3325 mWifiMetrics.endConnectionEvent(level2FailureCode, connectivityFailureCode); 3326 switch (level2FailureCode) { 3327 case WifiMetrics.ConnectionEvent.FAILURE_NONE: 3328 // Ideally, we'd wait until IP reachability has been confirmed. this code falls 3329 // short in two ways: 3330 // - at the time of the CMD_IP_CONFIGURATION_SUCCESSFUL event, we don't know if we 3331 // actually have ARP reachability. it might be better to wait until the wifi 3332 // network has been validated by IpManager. 3333 // - in the case of a roaming event (intra-SSID), we probably trigger when L2 is 3334 // complete. 3335 // 3336 // TODO(b/34181219): Fix the above. 3337 mWifiDiagnostics.reportConnectionEvent( 3338 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_SUCCEEDED); 3339 break; 3340 case WifiMetrics.ConnectionEvent.FAILURE_REDUNDANT_CONNECTION_ATTEMPT: 3341 case WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED: 3342 // WifiDiagnostics doesn't care about pre-empted connections, or cases 3343 // where we failed to initiate a connection attempt with supplicant. 3344 break; 3345 default: 3346 mWifiDiagnostics.reportConnectionEvent( 3347 mDiagsConnectionStartMillis, WifiDiagnostics.CONNECTION_EVENT_FAILED); 3348 } 3349 mDiagsConnectionStartMillis = -1; 3350 } 3351 3352 private void handleIPv4Success(DhcpResults dhcpResults) { 3353 if (mVerboseLoggingEnabled) { 3354 logd("handleIPv4Success <" + dhcpResults.toString() + ">"); 3355 logd("link address " + dhcpResults.ipAddress); 3356 } 3357 3358 Inet4Address addr; 3359 synchronized (mDhcpResultsLock) { 3360 mDhcpResults = dhcpResults; 3361 addr = (Inet4Address) dhcpResults.ipAddress.getAddress(); 3362 } 3363 3364 if (isRoaming()) { 3365 int previousAddress = mWifiInfo.getIpAddress(); 3366 int newAddress = NetworkUtils.inetAddressToInt(addr); 3367 if (previousAddress != newAddress) { 3368 logd("handleIPv4Success, roaming and address changed" + 3369 mWifiInfo + " got: " + addr); 3370 } 3371 } 3372 mWifiInfo.setInetAddress(addr); 3373 if (!mWifiInfo.getMeteredHint()) { // don't override the value if already set. 3374 mWifiInfo.setMeteredHint(dhcpResults.hasMeteredHint()); 3375 updateCapabilities(getCurrentWifiConfiguration()); 3376 } 3377 } 3378 3379 private void handleSuccessfulIpConfiguration() { 3380 mLastSignalLevel = -1; // Force update of signal strength 3381 WifiConfiguration c = getCurrentWifiConfiguration(); 3382 if (c != null) { 3383 // Reset IP failure tracking 3384 c.getNetworkSelectionStatus().clearDisableReasonCounter( 3385 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3386 3387 // Tell the framework whether the newly connected network is trusted or untrusted. 3388 updateCapabilities(c); 3389 } 3390 if (c != null) { 3391 ScanResult result = getCurrentScanResult(); 3392 if (result == null) { 3393 logd("WifiStateMachine: handleSuccessfulIpConfiguration and no scan results" + 3394 c.configKey()); 3395 } else { 3396 // Clear the per BSSID failure count 3397 result.numIpConfigFailures = 0; 3398 } 3399 } 3400 } 3401 3402 private void handleIPv4Failure() { 3403 // TODO: Move this to provisioning failure, not DHCP failure. 3404 // DHCPv4 failure is expected on an IPv6-only network. 3405 mWifiDiagnostics.captureBugReportData(WifiDiagnostics.REPORT_REASON_DHCP_FAILURE); 3406 if (mVerboseLoggingEnabled) { 3407 int count = -1; 3408 WifiConfiguration config = getCurrentWifiConfiguration(); 3409 if (config != null) { 3410 count = config.getNetworkSelectionStatus().getDisableReasonCounter( 3411 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3412 } 3413 log("DHCP failure count=" + count); 3414 } 3415 reportConnectionAttemptEnd( 3416 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 3417 WifiMetricsProto.ConnectionEvent.HLF_DHCP); 3418 synchronized(mDhcpResultsLock) { 3419 if (mDhcpResults != null) { 3420 mDhcpResults.clear(); 3421 } 3422 } 3423 if (mVerboseLoggingEnabled) { 3424 logd("handleIPv4Failure"); 3425 } 3426 } 3427 3428 private void handleIpConfigurationLost() { 3429 mWifiInfo.setInetAddress(null); 3430 mWifiInfo.setMeteredHint(false); 3431 3432 mWifiConfigManager.updateNetworkSelectionStatus(mLastNetworkId, 3433 WifiConfiguration.NetworkSelectionStatus.DISABLED_DHCP_FAILURE); 3434 3435 /* DHCP times out after about 30 seconds, we do a 3436 * disconnect thru supplicant, we will let autojoin retry connecting to the network 3437 */ 3438 mWifiNative.disconnect(); 3439 } 3440 3441 // TODO: De-duplicated this and handleIpConfigurationLost(). 3442 private void handleIpReachabilityLost() { 3443 mWifiInfo.setInetAddress(null); 3444 mWifiInfo.setMeteredHint(false); 3445 3446 // TODO: Determine whether to call some form of mWifiConfigManager.handleSSIDStateChange(). 3447 3448 // Disconnect via supplicant, and let autojoin retry connecting to the network. 3449 mWifiNative.disconnect(); 3450 } 3451 3452 /* 3453 * Read a MAC address in /proc/arp/table, used by WifistateMachine 3454 * so as to record MAC address of default gateway. 3455 **/ 3456 private String macAddressFromRoute(String ipAddress) { 3457 String macAddress = null; 3458 BufferedReader reader = null; 3459 try { 3460 reader = new BufferedReader(new FileReader("/proc/net/arp")); 3461 3462 // Skip over the line bearing colum titles 3463 String line = reader.readLine(); 3464 3465 while ((line = reader.readLine()) != null) { 3466 String[] tokens = line.split("[ ]+"); 3467 if (tokens.length < 6) { 3468 continue; 3469 } 3470 3471 // ARP column format is 3472 // Address HWType HWAddress Flags Mask IFace 3473 String ip = tokens[0]; 3474 String mac = tokens[3]; 3475 3476 if (ipAddress.equals(ip)) { 3477 macAddress = mac; 3478 break; 3479 } 3480 } 3481 3482 if (macAddress == null) { 3483 loge("Did not find remoteAddress {" + ipAddress + "} in " + 3484 "/proc/net/arp"); 3485 } 3486 3487 } catch (FileNotFoundException e) { 3488 loge("Could not open /proc/net/arp to lookup mac address"); 3489 } catch (IOException e) { 3490 loge("Could not read /proc/net/arp to lookup mac address"); 3491 } finally { 3492 try { 3493 if (reader != null) { 3494 reader.close(); 3495 } 3496 } catch (IOException e) { 3497 // Do nothing 3498 } 3499 } 3500 return macAddress; 3501 3502 } 3503 3504 private class WifiNetworkFactory extends NetworkFactory { 3505 public WifiNetworkFactory(Looper l, Context c, String TAG, NetworkCapabilities f) { 3506 super(l, c, TAG, f); 3507 } 3508 3509 @Override 3510 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3511 synchronized (mWifiReqCountLock) { 3512 if (++mConnectionReqCount == 1) { 3513 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3514 mWifiConnectivityManager.enable(true); 3515 } 3516 } 3517 } 3518 } 3519 3520 @Override 3521 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3522 synchronized (mWifiReqCountLock) { 3523 if (--mConnectionReqCount == 0) { 3524 if (mWifiConnectivityManager != null && mUntrustedReqCount == 0) { 3525 mWifiConnectivityManager.enable(false); 3526 } 3527 } 3528 } 3529 } 3530 3531 @Override 3532 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3533 pw.println("mConnectionReqCount " + mConnectionReqCount); 3534 } 3535 3536 } 3537 3538 private class UntrustedWifiNetworkFactory extends NetworkFactory { 3539 public UntrustedWifiNetworkFactory(Looper l, Context c, String tag, NetworkCapabilities f) { 3540 super(l, c, tag, f); 3541 } 3542 3543 @Override 3544 protected void needNetworkFor(NetworkRequest networkRequest, int score) { 3545 if (!networkRequest.networkCapabilities.hasCapability( 3546 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3547 synchronized (mWifiReqCountLock) { 3548 if (++mUntrustedReqCount == 1) { 3549 if (mWifiConnectivityManager != null) { 3550 if (mConnectionReqCount == 0) { 3551 mWifiConnectivityManager.enable(true); 3552 } 3553 mWifiConnectivityManager.setUntrustedConnectionAllowed(true); 3554 } 3555 } 3556 } 3557 } 3558 } 3559 3560 @Override 3561 protected void releaseNetworkFor(NetworkRequest networkRequest) { 3562 if (!networkRequest.networkCapabilities.hasCapability( 3563 NetworkCapabilities.NET_CAPABILITY_TRUSTED)) { 3564 synchronized (mWifiReqCountLock) { 3565 if (--mUntrustedReqCount == 0) { 3566 if (mWifiConnectivityManager != null) { 3567 mWifiConnectivityManager.setUntrustedConnectionAllowed(false); 3568 if (mConnectionReqCount == 0) { 3569 mWifiConnectivityManager.enable(false); 3570 } 3571 } 3572 } 3573 } 3574 } 3575 } 3576 3577 @Override 3578 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3579 pw.println("mUntrustedReqCount " + mUntrustedReqCount); 3580 } 3581 } 3582 3583 void maybeRegisterNetworkFactory() { 3584 if (mNetworkFactory == null) { 3585 checkAndSetConnectivityInstance(); 3586 if (mCm != null) { 3587 mNetworkFactory = new WifiNetworkFactory(getHandler().getLooper(), mContext, 3588 NETWORKTYPE, mNetworkCapabilitiesFilter); 3589 mNetworkFactory.setScoreFilter(60); 3590 mNetworkFactory.register(); 3591 3592 // We can't filter untrusted network in the capabilities filter because a trusted 3593 // network would still satisfy a request that accepts untrusted ones. 3594 mUntrustedNetworkFactory = new UntrustedWifiNetworkFactory(getHandler().getLooper(), 3595 mContext, NETWORKTYPE_UNTRUSTED, mNetworkCapabilitiesFilter); 3596 mUntrustedNetworkFactory.setScoreFilter(Integer.MAX_VALUE); 3597 mUntrustedNetworkFactory.register(); 3598 } 3599 } 3600 } 3601 3602 /** 3603 * WifiStateMachine needs to enable/disable other services when wifi is in client mode. This 3604 * method allows WifiStateMachine to get these additional system services. 3605 * 3606 * At this time, this method is used to setup variables for P2P service and Wifi Aware. 3607 */ 3608 private void getAdditionalWifiServiceInterfaces() { 3609 // First set up Wifi Direct 3610 if (mP2pSupported) { 3611 IBinder s1 = mFacade.getService(Context.WIFI_P2P_SERVICE); 3612 WifiP2pServiceImpl wifiP2pServiceImpl = 3613 (WifiP2pServiceImpl) IWifiP2pManager.Stub.asInterface(s1); 3614 3615 if (wifiP2pServiceImpl != null) { 3616 mWifiP2pChannel = new AsyncChannel(); 3617 mWifiP2pChannel.connect(mContext, getHandler(), 3618 wifiP2pServiceImpl.getP2pStateMachineMessenger()); 3619 } 3620 } 3621 } 3622 3623 /******************************************************** 3624 * HSM states 3625 *******************************************************/ 3626 3627 class DefaultState extends State { 3628 3629 @Override 3630 public boolean processMessage(Message message) { 3631 logStateAndMessage(message, this); 3632 3633 switch (message.what) { 3634 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { 3635 AsyncChannel ac = (AsyncChannel) message.obj; 3636 if (ac == mWifiP2pChannel) { 3637 if (message.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { 3638 p2pSendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); 3639 // since the p2p channel is connected, we should enable p2p if we are in 3640 // connect mode. We may not be in connect mode yet, we may have just 3641 // set the operational mode and started to set up for connect mode. 3642 if (mOperationalMode == CONNECT_MODE) { 3643 // This message will only be handled if we are in Connect mode. 3644 // If we are not in connect mode yet, this will be dropped and the 3645 // ConnectMode.enter method will call to enable p2p. 3646 sendMessage(CMD_ENABLE_P2P); 3647 } 3648 } else { 3649 // TODO: We should probably do some cleanup or attempt a retry 3650 // b/34283611 3651 loge("WifiP2pService connection failure, error=" + message.arg1); 3652 } 3653 } else { 3654 loge("got HALF_CONNECTED for unknown channel"); 3655 } 3656 break; 3657 } 3658 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { 3659 AsyncChannel ac = (AsyncChannel) message.obj; 3660 if (ac == mWifiP2pChannel) { 3661 loge("WifiP2pService channel lost, message.arg1 =" + message.arg1); 3662 //TODO: Re-establish connection to state machine after a delay (b/34283611) 3663 // mWifiP2pChannel.connect(mContext, getHandler(), 3664 // mWifiP2pManager.getMessenger()); 3665 } 3666 break; 3667 } 3668 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 3669 mBluetoothConnectionActive = (message.arg1 != 3670 BluetoothAdapter.STATE_DISCONNECTED); 3671 break; 3672 /* Synchronous call returns */ 3673 case CMD_PING_SUPPLICANT: 3674 case CMD_ENABLE_NETWORK: 3675 case CMD_ADD_OR_UPDATE_NETWORK: 3676 case CMD_SAVE_CONFIG: 3677 replyToMessage(message, message.what, FAILURE); 3678 break; 3679 case CMD_REMOVE_NETWORK: 3680 deleteNetworkConfigAndSendReply(message, false); 3681 break; 3682 case CMD_GET_CONFIGURED_NETWORKS: 3683 replyToMessage(message, message.what, mWifiConfigManager.getSavedNetworks()); 3684 break; 3685 case CMD_GET_PRIVILEGED_CONFIGURED_NETWORKS: 3686 replyToMessage(message, message.what, 3687 mWifiConfigManager.getConfiguredNetworksWithPasswords()); 3688 break; 3689 case CMD_ENABLE_RSSI_POLL: 3690 mEnableRssiPolling = (message.arg1 == 1); 3691 break; 3692 case CMD_SET_HIGH_PERF_MODE: 3693 if (message.arg1 == 1) { 3694 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, false); 3695 } else { 3696 setSuspendOptimizations(SUSPEND_DUE_TO_HIGH_PERF, true); 3697 } 3698 break; 3699 case CMD_INITIALIZE: 3700 boolean ok = mWifiNative.initializeVendorHal(); 3701 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 3702 break; 3703 case CMD_BOOT_COMPLETED: 3704 // get other services that we need to manage 3705 getAdditionalWifiServiceInterfaces(); 3706 if (!mWifiConfigManager.loadFromStore()) { 3707 Log.e(TAG, "Failed to load from config store"); 3708 } 3709 maybeRegisterNetworkFactory(); 3710 break; 3711 case CMD_SCREEN_STATE_CHANGED: 3712 handleScreenStateChanged(message.arg1 != 0); 3713 break; 3714 /* Discard */ 3715 case CMD_START_SCAN: 3716 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3717 break; 3718 case CMD_START_SUPPLICANT: 3719 case CMD_STOP_SUPPLICANT: 3720 case CMD_STOP_SUPPLICANT_FAILED: 3721 case CMD_DRIVER_START_TIMED_OUT: 3722 case CMD_START_AP: 3723 case CMD_START_AP_FAILURE: 3724 case CMD_STOP_AP: 3725 case CMD_AP_STOPPED: 3726 case CMD_DISCONNECT: 3727 case CMD_RECONNECT: 3728 case CMD_REASSOCIATE: 3729 case CMD_RELOAD_TLS_AND_RECONNECT: 3730 case WifiMonitor.SUP_CONNECTION_EVENT: 3731 case WifiMonitor.SUP_DISCONNECTION_EVENT: 3732 case WifiMonitor.NETWORK_CONNECTION_EVENT: 3733 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 3734 case WifiMonitor.SCAN_RESULTS_EVENT: 3735 case WifiMonitor.SCAN_FAILED_EVENT: 3736 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 3737 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 3738 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 3739 case WifiMonitor.WPS_OVERLAP_EVENT: 3740 case CMD_SET_OPERATIONAL_MODE: 3741 case CMD_RSSI_POLL: 3742 case DhcpClient.CMD_PRE_DHCP_ACTION: 3743 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 3744 case DhcpClient.CMD_POST_DHCP_ACTION: 3745 case CMD_NO_NETWORKS_PERIODIC_SCAN: 3746 case CMD_ENABLE_P2P: 3747 case CMD_DISABLE_P2P_RSP: 3748 case WifiMonitor.SUP_REQUEST_IDENTITY: 3749 case CMD_TEST_NETWORK_DISCONNECT: 3750 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 3751 case CMD_TARGET_BSSID: 3752 case CMD_START_CONNECT: 3753 case CMD_START_ROAM: 3754 case CMD_ASSOCIATED_BSSID: 3755 case CMD_UNWANTED_NETWORK: 3756 case CMD_DISCONNECTING_WATCHDOG_TIMER: 3757 case CMD_ROAM_WATCHDOG_TIMER: 3758 case CMD_DISABLE_EPHEMERAL_NETWORK: 3759 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3760 break; 3761 case CMD_SET_SUSPEND_OPT_ENABLED: 3762 if (message.arg1 == 1) { 3763 if (message.arg2 == 1) { 3764 mSuspendWakeLock.release(); 3765 } 3766 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, true); 3767 } else { 3768 setSuspendOptimizations(SUSPEND_DUE_TO_SCREEN, false); 3769 } 3770 break; 3771 case WifiMonitor.DRIVER_HUNG_EVENT: 3772 setSupplicantRunning(false); 3773 setSupplicantRunning(true); 3774 break; 3775 case WifiManager.CONNECT_NETWORK: 3776 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 3777 WifiManager.BUSY); 3778 break; 3779 case WifiManager.FORGET_NETWORK: 3780 deleteNetworkConfigAndSendReply(message, true); 3781 break; 3782 case WifiManager.SAVE_NETWORK: 3783 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 3784 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 3785 WifiManager.BUSY); 3786 break; 3787 case WifiManager.START_WPS: 3788 replyToMessage(message, WifiManager.WPS_FAILED, 3789 WifiManager.BUSY); 3790 break; 3791 case WifiManager.CANCEL_WPS: 3792 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, 3793 WifiManager.BUSY); 3794 break; 3795 case WifiManager.DISABLE_NETWORK: 3796 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 3797 WifiManager.BUSY); 3798 break; 3799 case WifiManager.RSSI_PKTCNT_FETCH: 3800 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_FAILED, 3801 WifiManager.BUSY); 3802 break; 3803 case CMD_GET_SUPPORTED_FEATURES: 3804 int featureSet = mWifiNative.getSupportedFeatureSet(); 3805 replyToMessage(message, message.what, featureSet); 3806 break; 3807 case CMD_FIRMWARE_ALERT: 3808 if (mWifiDiagnostics != null) { 3809 byte[] buffer = (byte[])message.obj; 3810 int alertReason = message.arg1; 3811 mWifiDiagnostics.captureAlertData(alertReason, buffer); 3812 mWifiMetrics.incrementAlertReasonCount(alertReason); 3813 } 3814 break; 3815 case CMD_GET_LINK_LAYER_STATS: 3816 // Not supported hence reply with error message 3817 replyToMessage(message, message.what, null); 3818 break; 3819 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 3820 NetworkInfo info = (NetworkInfo) message.obj; 3821 mP2pConnected.set(info.isConnected()); 3822 break; 3823 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 3824 mTemporarilyDisconnectWifi = (message.arg1 == 1); 3825 replyToMessage(message, WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 3826 break; 3827 /* Link configuration (IP address, DNS, ...) changes notified via netlink */ 3828 case CMD_UPDATE_LINKPROPERTIES: 3829 updateLinkProperties((LinkProperties) message.obj); 3830 break; 3831 case CMD_GET_MATCHING_CONFIG: 3832 replyToMessage(message, message.what); 3833 break; 3834 case CMD_IP_CONFIGURATION_SUCCESSFUL: 3835 case CMD_IP_CONFIGURATION_LOST: 3836 case CMD_IP_REACHABILITY_LOST: 3837 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3838 break; 3839 case CMD_GET_CONNECTION_STATISTICS: 3840 replyToMessage(message, message.what, mWifiConnectionStatistics); 3841 break; 3842 case CMD_REMOVE_APP_CONFIGURATIONS: 3843 deferMessage(message); 3844 break; 3845 case CMD_REMOVE_USER_CONFIGURATIONS: 3846 deferMessage(message); 3847 break; 3848 case CMD_START_IP_PACKET_OFFLOAD: 3849 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3850 message.arg1, 3851 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3852 break; 3853 case CMD_STOP_IP_PACKET_OFFLOAD: 3854 if (mNetworkAgent != null) mNetworkAgent.onPacketKeepaliveEvent( 3855 message.arg1, 3856 ConnectivityManager.PacketKeepalive.ERROR_INVALID_NETWORK); 3857 break; 3858 case CMD_START_RSSI_MONITORING_OFFLOAD: 3859 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3860 break; 3861 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 3862 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 3863 break; 3864 case CMD_USER_SWITCH: 3865 Set<Integer> removedNetworkIds = 3866 mWifiConfigManager.handleUserSwitch(message.arg1); 3867 if (removedNetworkIds.contains(mTargetNetworkId) || 3868 removedNetworkIds.contains(mLastNetworkId)) { 3869 // Disconnect and let autojoin reselect a new network 3870 sendMessage(CMD_DISCONNECT); 3871 } 3872 break; 3873 case CMD_USER_UNLOCK: 3874 mWifiConfigManager.handleUserUnlock(message.arg1); 3875 break; 3876 case CMD_USER_STOP: 3877 mWifiConfigManager.handleUserStop(message.arg1); 3878 break; 3879 case CMD_QUERY_OSU_ICON: 3880 case CMD_MATCH_PROVIDER_NETWORK: 3881 /* reply with arg1 = 0 - it returns API failure to the calling app 3882 * (message.what is not looked at) 3883 */ 3884 replyToMessage(message, message.what); 3885 break; 3886 case CMD_RESET_SIM_NETWORKS: 3887 /* Defer this message until supplicant is started. */ 3888 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 3889 deferMessage(message); 3890 break; 3891 case CMD_INSTALL_PACKET_FILTER: 3892 mWifiNative.installPacketFilter((byte[]) message.obj); 3893 break; 3894 case CMD_SET_FALLBACK_PACKET_FILTERING: 3895 if ((boolean) message.obj) { 3896 mWifiNative.startFilteringMulticastV4Packets(); 3897 } else { 3898 mWifiNative.stopFilteringMulticastV4Packets(); 3899 } 3900 break; 3901 case CMD_CLIENT_INTERFACE_BINDER_DEATH: 3902 // We have lost contact with a client interface, which means that we cannot 3903 // trust that the driver is up or that the interface is ready. We are fit 3904 // for no WiFi related work. 3905 transitionTo(mInitialState); 3906 break; 3907 case CMD_DIAGS_CONNECT_TIMEOUT: 3908 mWifiDiagnostics.reportConnectionEvent( 3909 (Long) message.obj, BaseWifiDiagnostics.CONNECTION_EVENT_FAILED); 3910 break; 3911 default: 3912 loge("Error! unhandled message" + message); 3913 break; 3914 } 3915 return HANDLED; 3916 } 3917 } 3918 3919 class InitialState extends State { 3920 3921 private void cleanup() { 3922 // Tearing down the client interfaces below is going to stop our supplicant. 3923 mWifiMonitor.stopAllMonitoring(); 3924 3925 mDeathRecipient.unlinkToDeath(); 3926 mWifiNative.tearDownInterfaces(); 3927 3928 mWifiNative.stopHal(); 3929 } 3930 3931 @Override 3932 public void enter() { 3933 cleanup(); 3934 } 3935 3936 @Override 3937 public boolean processMessage(Message message) { 3938 logStateAndMessage(message, this); 3939 switch (message.what) { 3940 case CMD_START_SUPPLICANT: 3941 mClientInterface = mWifiNative.setupDriverForClientMode(); 3942 if (mClientInterface == null 3943 || !mDeathRecipient.linkToDeath(mClientInterface.asBinder())) { 3944 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3945 cleanup(); 3946 break; 3947 } 3948 3949 try { 3950 // A runtime crash or shutting down AP mode can leave 3951 // IP addresses configured, and this affects 3952 // connectivity when supplicant starts up. 3953 // Ensure we have no IP addresses before a supplicant start. 3954 mNwService.clearInterfaceAddresses(mInterfaceName); 3955 3956 // Set privacy extensions 3957 mNwService.setInterfaceIpv6PrivacyExtensions(mInterfaceName, true); 3958 3959 // IPv6 is enabled only as long as access point is connected since: 3960 // - IPv6 addresses and routes stick around after disconnection 3961 // - kernel is unaware when connected and fails to start IPv6 negotiation 3962 // - kernel can start autoconfiguration when 802.1x is not complete 3963 mNwService.disableIpv6(mInterfaceName); 3964 } catch (RemoteException re) { 3965 loge("Unable to change interface settings: " + re); 3966 } catch (IllegalStateException ie) { 3967 loge("Unable to change interface settings: " + ie); 3968 } 3969 3970 if (!mWifiNative.enableSupplicant()) { 3971 loge("Failed to start supplicant!"); 3972 setWifiState(WifiManager.WIFI_STATE_UNKNOWN); 3973 cleanup(); 3974 break; 3975 } 3976 if (!mWifiNative.initializeSupplicantHal()) { 3977 Log.e(TAG, "Failed to start supplicant Hal"); 3978 } 3979 setSupplicantLogLevel(); 3980 setWifiState(WIFI_STATE_ENABLING); 3981 if (mVerboseLoggingEnabled) log("Supplicant start successful"); 3982 mWifiMonitor.startMonitoring(mInterfaceName); 3983 transitionTo(mSupplicantStartingState); 3984 break; 3985 case CMD_START_AP: 3986 transitionTo(mSoftApState); 3987 break; 3988 case CMD_SET_OPERATIONAL_MODE: 3989 mOperationalMode = message.arg1; 3990 if (mOperationalMode != DISABLED_MODE) { 3991 sendMessage(CMD_START_SUPPLICANT); 3992 } 3993 break; 3994 default: 3995 return NOT_HANDLED; 3996 } 3997 return HANDLED; 3998 } 3999 } 4000 4001 class SupplicantStartingState extends State { 4002 private void initializeWpsDetails() { 4003 String detail; 4004 detail = mPropertyService.get("ro.product.name", ""); 4005 if (!mWifiNative.setDeviceName(detail)) { 4006 loge("Failed to set device name " + detail); 4007 } 4008 detail = mPropertyService.get("ro.product.manufacturer", ""); 4009 if (!mWifiNative.setManufacturer(detail)) { 4010 loge("Failed to set manufacturer " + detail); 4011 } 4012 detail = mPropertyService.get("ro.product.model", ""); 4013 if (!mWifiNative.setModelName(detail)) { 4014 loge("Failed to set model name " + detail); 4015 } 4016 detail = mPropertyService.get("ro.product.model", ""); 4017 if (!mWifiNative.setModelNumber(detail)) { 4018 loge("Failed to set model number " + detail); 4019 } 4020 detail = mPropertyService.get("ro.serialno", ""); 4021 if (!mWifiNative.setSerialNumber(detail)) { 4022 loge("Failed to set serial number " + detail); 4023 } 4024 if (!mWifiNative.setConfigMethods("physical_display virtual_push_button")) { 4025 loge("Failed to set WPS config methods"); 4026 } 4027 if (!mWifiNative.setDeviceType(mPrimaryDeviceType)) { 4028 loge("Failed to set primary device type " + mPrimaryDeviceType); 4029 } 4030 } 4031 4032 @Override 4033 public boolean processMessage(Message message) { 4034 logStateAndMessage(message, this); 4035 4036 switch(message.what) { 4037 case WifiMonitor.SUP_CONNECTION_EVENT: 4038 if (mVerboseLoggingEnabled) log("Supplicant connection established"); 4039 4040 mSupplicantRestartCount = 0; 4041 /* Reset the supplicant state to indicate the supplicant 4042 * state is not known at this time */ 4043 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4044 /* Initialize data structures */ 4045 mLastBssid = null; 4046 mLastNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 4047 mLastSignalLevel = -1; 4048 4049 mWifiInfo.setMacAddress(mWifiNative.getMacAddress()); 4050 // Attempt to migrate data out of legacy store. 4051 if (!mWifiConfigManager.migrateFromLegacyStore()) { 4052 Log.e(TAG, "Failed to migrate from legacy config store"); 4053 } 4054 initializeWpsDetails(); 4055 sendSupplicantConnectionChangedBroadcast(true); 4056 transitionTo(mSupplicantStartedState); 4057 break; 4058 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4059 if (++mSupplicantRestartCount <= SUPPLICANT_RESTART_TRIES) { 4060 loge("Failed to setup control channel, restart supplicant"); 4061 mWifiMonitor.stopAllMonitoring(); 4062 mWifiNative.disableSupplicant(); 4063 transitionTo(mInitialState); 4064 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4065 } else { 4066 loge("Failed " + mSupplicantRestartCount + 4067 " times to start supplicant, unload driver"); 4068 mSupplicantRestartCount = 0; 4069 setWifiState(WIFI_STATE_UNKNOWN); 4070 transitionTo(mInitialState); 4071 } 4072 break; 4073 case CMD_START_SUPPLICANT: 4074 case CMD_STOP_SUPPLICANT: 4075 case CMD_START_AP: 4076 case CMD_STOP_AP: 4077 case CMD_SET_OPERATIONAL_MODE: 4078 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4079 deferMessage(message); 4080 break; 4081 default: 4082 return NOT_HANDLED; 4083 } 4084 return HANDLED; 4085 } 4086 } 4087 4088 class SupplicantStartedState extends State { 4089 @Override 4090 public void enter() { 4091 if (mVerboseLoggingEnabled) { 4092 logd("SupplicantStartedState enter"); 4093 } 4094 4095 int defaultInterval = mContext.getResources().getInteger( 4096 R.integer.config_wifi_supplicant_scan_interval); 4097 4098 mSupplicantScanIntervalMs = mFacade.getLongSetting(mContext, 4099 Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS, 4100 defaultInterval); 4101 4102 mWifiNative.setScanInterval((int)mSupplicantScanIntervalMs / 1000); 4103 mWifiNative.setExternalSim(true); 4104 4105 /* turn on use of DFS channels */ 4106 mWifiNative.setDfsFlag(true); 4107 4108 setRandomMacOui(); 4109 mWifiNative.enableAutoConnect(false); 4110 mCountryCode.setReadyForChange(true); 4111 4112 // We can't do this in the constructor because WifiStateMachine is created before the 4113 // wifi scanning service is initialized 4114 if (mWifiScanner == null) { 4115 mWifiScanner = mWifiInjector.getWifiScanner(); 4116 4117 synchronized (mWifiReqCountLock) { 4118 mWifiConnectivityManager = 4119 mWifiInjector.makeWifiConnectivityManager(mWifiInfo, 4120 hasConnectionRequests()); 4121 mWifiConnectivityManager.setUntrustedConnectionAllowed(mUntrustedReqCount > 0); 4122 mWifiConnectivityManager.handleScreenStateChanged(mScreenOn); 4123 } 4124 } 4125 4126 mWifiDiagnostics.startLogging(mVerboseLoggingEnabled); 4127 mIsRunning = true; 4128 updateBatteryWorkSource(null); 4129 /** 4130 * Enable bluetooth coexistence scan mode when bluetooth connection is active. 4131 * When this mode is on, some of the low-level scan parameters used by the 4132 * driver are changed to reduce interference with bluetooth 4133 */ 4134 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4135 // initialize network state 4136 setNetworkDetailedState(DetailedState.DISCONNECTED); 4137 4138 // Disable legacy multicast filtering, which on some chipsets defaults to enabled. 4139 // Legacy IPv6 multicast filtering blocks ICMPv6 router advertisements which breaks IPv6 4140 // provisioning. Legacy IPv4 multicast filtering may be re-enabled later via 4141 // IpManager.Callback.setFallbackMulticastFilter() 4142 mWifiNative.stopFilteringMulticastV4Packets(); 4143 mWifiNative.stopFilteringMulticastV6Packets(); 4144 4145 if (mOperationalMode == SCAN_ONLY_MODE || 4146 mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4147 mWifiNative.disconnect(); 4148 if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4149 setWifiState(WIFI_STATE_DISABLED); 4150 } 4151 transitionTo(mScanModeState); 4152 } else if (mOperationalMode == CONNECT_MODE){ 4153 4154 // Status pulls in the current supplicant state and network connection state 4155 // events over the monitor connection. This helps framework sync up with 4156 // current supplicant state 4157 // TODO: actually check the supplicant status string and make sure the supplicant 4158 // is in disconnecte4d state. 4159 mWifiNative.status(); 4160 // Transitioning to Disconnected state will trigger a scan and subsequently AutoJoin 4161 transitionTo(mDisconnectedState); 4162 } else if (mOperationalMode == DISABLED_MODE) { 4163 transitionTo(mSupplicantStoppingState); 4164 } 4165 4166 // Set the right suspend mode settings 4167 mWifiNative.setSuspendOptimizations(mSuspendOptNeedsDisabled == 0 4168 && mUserWantsSuspendOpt.get()); 4169 4170 mWifiNative.setPowerSave(true); 4171 4172 if (mP2pSupported) { 4173 if (mOperationalMode == CONNECT_MODE) { 4174 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4175 } else { 4176 // P2P state machine starts in disabled state, and is not enabled until 4177 // CMD_ENABLE_P2P is sent from here; so, nothing needs to be done to 4178 // keep it disabled. 4179 } 4180 } 4181 4182 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4183 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4184 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_ENABLED); 4185 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4186 4187 // Enable link layer stats gathering 4188 mWifiNative.setWifiLinkLayerStats("wlan0", 1); 4189 } 4190 4191 @Override 4192 public boolean processMessage(Message message) { 4193 logStateAndMessage(message, this); 4194 4195 switch(message.what) { 4196 case CMD_STOP_SUPPLICANT: /* Supplicant stopped by user */ 4197 if (mP2pSupported) { 4198 transitionTo(mWaitForP2pDisableState); 4199 } else { 4200 transitionTo(mSupplicantStoppingState); 4201 } 4202 break; 4203 case WifiMonitor.SUP_DISCONNECTION_EVENT: /* Supplicant connection lost */ 4204 loge("Connection lost, restart supplicant"); 4205 handleSupplicantConnectionLoss(true); 4206 handleNetworkDisconnect(); 4207 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4208 if (mP2pSupported) { 4209 transitionTo(mWaitForP2pDisableState); 4210 } else { 4211 transitionTo(mInitialState); 4212 } 4213 sendMessageDelayed(CMD_START_SUPPLICANT, SUPPLICANT_RESTART_INTERVAL_MSECS); 4214 break; 4215 case CMD_START_SCAN: 4216 // TODO: remove scan request path (b/31445200) 4217 handleScanRequest(message); 4218 break; 4219 case WifiMonitor.SCAN_RESULTS_EVENT: 4220 case WifiMonitor.SCAN_FAILED_EVENT: 4221 // TODO: remove handing of SCAN_RESULTS_EVENT and SCAN_FAILED_EVENT when scan 4222 // results are retrieved from WifiScanner (b/31444878) 4223 maybeRegisterNetworkFactory(); // Make sure our NetworkFactory is registered 4224 setScanResults(); 4225 mIsScanOngoing = false; 4226 mIsFullScanOngoing = false; 4227 if (mBufferedScanMsg.size() > 0) 4228 sendMessage(mBufferedScanMsg.remove()); 4229 break; 4230 case CMD_PING_SUPPLICANT: 4231 boolean ok = mWifiNative.ping(); 4232 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4233 break; 4234 case CMD_START_AP: 4235 /* Cannot start soft AP while in client mode */ 4236 loge("Failed to start soft AP with a running supplicant"); 4237 setWifiApState(WIFI_AP_STATE_FAILED, WifiManager.SAP_START_FAILURE_GENERAL); 4238 break; 4239 case CMD_SET_OPERATIONAL_MODE: 4240 mOperationalMode = message.arg1; 4241 if (mOperationalMode == DISABLED_MODE) { 4242 transitionTo(mSupplicantStoppingState); 4243 } 4244 break; 4245 case CMD_TARGET_BSSID: 4246 // Trying to associate to this BSSID 4247 if (message.obj != null) { 4248 mTargetRoamBSSID = (String) message.obj; 4249 } 4250 break; 4251 case CMD_GET_LINK_LAYER_STATS: 4252 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 4253 replyToMessage(message, message.what, stats); 4254 break; 4255 case CMD_RESET_SIM_NETWORKS: 4256 log("resetting EAP-SIM/AKA/AKA' networks since SIM was changed"); 4257 mWifiConfigManager.resetSimNetworks(); 4258 break; 4259 case CMD_BLUETOOTH_ADAPTER_STATE_CHANGE: 4260 mBluetoothConnectionActive = (message.arg1 != 4261 BluetoothAdapter.STATE_DISCONNECTED); 4262 mWifiNative.setBluetoothCoexistenceScanMode(mBluetoothConnectionActive); 4263 break; 4264 case CMD_SET_SUSPEND_OPT_ENABLED: 4265 if (message.arg1 == 1) { 4266 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, true); 4267 if (message.arg2 == 1) { 4268 mSuspendWakeLock.release(); 4269 } 4270 } else { 4271 setSuspendOptimizationsNative(SUSPEND_DUE_TO_SCREEN, false); 4272 } 4273 break; 4274 case CMD_SET_HIGH_PERF_MODE: 4275 if (message.arg1 == 1) { 4276 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, false); 4277 } else { 4278 setSuspendOptimizationsNative(SUSPEND_DUE_TO_HIGH_PERF, true); 4279 } 4280 break; 4281 case CMD_ENABLE_TDLS: 4282 if (message.obj != null) { 4283 String remoteAddress = (String) message.obj; 4284 boolean enable = (message.arg1 == 1); 4285 mWifiNative.startTdls(remoteAddress, enable); 4286 } 4287 break; 4288 case WifiMonitor.ANQP_DONE_EVENT: 4289 // TODO(zqiu): remove this when switch over to wificond for ANQP requests. 4290 mPasspointManager.notifyANQPDone((AnqpEvent) message.obj); 4291 break; 4292 case CMD_STOP_IP_PACKET_OFFLOAD: { 4293 int slot = message.arg1; 4294 int ret = stopWifiIPPacketOffload(slot); 4295 if (mNetworkAgent != null) { 4296 mNetworkAgent.onPacketKeepaliveEvent(slot, ret); 4297 } 4298 break; 4299 } 4300 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4301 // TODO(zqiu): remove this when switch over to wificond for icon requests. 4302 mPasspointManager.notifyIconDone((IconEvent) message.obj); 4303 break; 4304 case WifiMonitor.HS20_REMEDIATION_EVENT: 4305 // TODO(zqiu): remove this when switch over to wificond for WNM frames 4306 // monitoring. 4307 mPasspointManager.receivedWnmFrame((WnmData) message.obj); 4308 break; 4309 case CMD_CONFIG_ND_OFFLOAD: 4310 final boolean enabled = (message.arg1 > 0); 4311 mWifiNative.configureNeighborDiscoveryOffload(enabled); 4312 break; 4313 case CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER: 4314 mWifiConnectivityManager.enable(message.arg1 == 1 ? true : false); 4315 break; 4316 case CMD_ENABLE_AUTOJOIN_WHEN_ASSOCIATED: 4317 final boolean allowed = (message.arg1 > 0); 4318 boolean old_state = mEnableAutoJoinWhenAssociated; 4319 mEnableAutoJoinWhenAssociated = allowed; 4320 if (!old_state && allowed && mScreenOn 4321 && getCurrentState() == mConnectedState) { 4322 mWifiConnectivityManager.forceConnectivityScan(); 4323 } 4324 break; 4325 default: 4326 return NOT_HANDLED; 4327 } 4328 return HANDLED; 4329 } 4330 4331 @Override 4332 public void exit() { 4333 mWifiDiagnostics.stopLogging(); 4334 4335 mIsRunning = false; 4336 updateBatteryWorkSource(null); 4337 mScanResults = new ArrayList<>(); 4338 4339 final Intent intent = new Intent(WifiManager.WIFI_SCAN_AVAILABLE); 4340 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 4341 intent.putExtra(WifiManager.EXTRA_SCAN_AVAILABLE, WIFI_STATE_DISABLED); 4342 mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); 4343 mBufferedScanMsg.clear(); 4344 4345 mNetworkInfo.setIsAvailable(false); 4346 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4347 mCountryCode.setReadyForChange(false); 4348 } 4349 } 4350 4351 class SupplicantStoppingState extends State { 4352 @Override 4353 public void enter() { 4354 /* Send any reset commands to supplicant before shutting it down */ 4355 handleNetworkDisconnect(); 4356 4357 String suppState = System.getProperty("init.svc.wpa_supplicant"); 4358 if (suppState == null) suppState = "unknown"; 4359 4360 logd("SupplicantStoppingState: stopSupplicant " 4361 + " init.svc.wpa_supplicant=" + suppState); 4362 mWifiMonitor.stopSupplicant(); 4363 4364 /* Send ourselves a delayed message to indicate failure after a wait time */ 4365 sendMessageDelayed(obtainMessage(CMD_STOP_SUPPLICANT_FAILED, 4366 ++mSupplicantStopFailureToken, 0), SUPPLICANT_RESTART_INTERVAL_MSECS); 4367 setWifiState(WIFI_STATE_DISABLING); 4368 mSupplicantStateTracker.sendMessage(CMD_RESET_SUPPLICANT_STATE); 4369 } 4370 @Override 4371 public boolean processMessage(Message message) { 4372 logStateAndMessage(message, this); 4373 4374 switch(message.what) { 4375 case WifiMonitor.SUP_CONNECTION_EVENT: 4376 loge("Supplicant connection received while stopping"); 4377 break; 4378 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4379 if (mVerboseLoggingEnabled) log("Supplicant connection lost"); 4380 handleSupplicantConnectionLoss(false); 4381 transitionTo(mInitialState); 4382 break; 4383 case CMD_STOP_SUPPLICANT_FAILED: 4384 if (message.arg1 == mSupplicantStopFailureToken) { 4385 loge("Timed out on a supplicant stop, kill and proceed"); 4386 handleSupplicantConnectionLoss(true); 4387 transitionTo(mInitialState); 4388 } 4389 break; 4390 case CMD_START_SUPPLICANT: 4391 case CMD_STOP_SUPPLICANT: 4392 case CMD_START_AP: 4393 case CMD_STOP_AP: 4394 case CMD_SET_OPERATIONAL_MODE: 4395 deferMessage(message); 4396 break; 4397 default: 4398 return NOT_HANDLED; 4399 } 4400 return HANDLED; 4401 } 4402 } 4403 4404 class WaitForP2pDisableState extends State { 4405 private State mTransitionToState; 4406 @Override 4407 public void enter() { 4408 switch (getCurrentMessage().what) { 4409 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4410 mTransitionToState = mInitialState; 4411 break; 4412 case CMD_STOP_SUPPLICANT: 4413 default: 4414 mTransitionToState = mSupplicantStoppingState; 4415 break; 4416 } 4417 p2pSendMessage(WifiStateMachine.CMD_DISABLE_P2P_REQ); 4418 } 4419 @Override 4420 public boolean processMessage(Message message) { 4421 logStateAndMessage(message, this); 4422 4423 switch(message.what) { 4424 case WifiStateMachine.CMD_DISABLE_P2P_RSP: 4425 transitionTo(mTransitionToState); 4426 break; 4427 /* Defer wifi start/shut and driver commands */ 4428 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4429 case CMD_START_SUPPLICANT: 4430 case CMD_STOP_SUPPLICANT: 4431 case CMD_START_AP: 4432 case CMD_STOP_AP: 4433 case CMD_SET_OPERATIONAL_MODE: 4434 case CMD_START_SCAN: 4435 case CMD_DISCONNECT: 4436 case CMD_REASSOCIATE: 4437 case CMD_RECONNECT: 4438 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 4439 deferMessage(message); 4440 break; 4441 default: 4442 return NOT_HANDLED; 4443 } 4444 return HANDLED; 4445 } 4446 } 4447 4448 class ScanModeState extends State { 4449 private int mLastOperationMode; 4450 @Override 4451 public void enter() { 4452 mLastOperationMode = mOperationalMode; 4453 } 4454 @Override 4455 public boolean processMessage(Message message) { 4456 logStateAndMessage(message, this); 4457 4458 switch(message.what) { 4459 case CMD_SET_OPERATIONAL_MODE: 4460 if (message.arg1 == CONNECT_MODE) { 4461 if (mLastOperationMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 4462 setWifiState(WIFI_STATE_ENABLED); 4463 // Load and re-enable networks when going back to enabled state 4464 // This is essential for networks to show up after restore 4465 mWifiConfigManager.loadFromStore(); 4466 p2pSendMessage(CMD_ENABLE_P2P); 4467 } 4468 mOperationalMode = CONNECT_MODE; 4469 transitionTo(mDisconnectedState); 4470 } else if (message.arg1 == DISABLED_MODE) { 4471 transitionTo(mSupplicantStoppingState); 4472 } 4473 // Nothing to do 4474 break; 4475 // Handle scan. All the connection related commands are 4476 // handled only in ConnectModeState 4477 case CMD_START_SCAN: 4478 handleScanRequest(message); 4479 break; 4480 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4481 SupplicantState state = handleSupplicantStateChange(message); 4482 if (mVerboseLoggingEnabled) log("SupplicantState= " + state); 4483 break; 4484 default: 4485 return NOT_HANDLED; 4486 } 4487 return HANDLED; 4488 } 4489 } 4490 4491 4492 String smToString(Message message) { 4493 return smToString(message.what); 4494 } 4495 4496 String smToString(int what) { 4497 String s = sSmToString.get(what); 4498 if (s != null) { 4499 return s; 4500 } 4501 switch (what) { 4502 case WifiMonitor.DRIVER_HUNG_EVENT: 4503 s = "DRIVER_HUNG_EVENT"; 4504 break; 4505 case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: 4506 s = "AsyncChannel.CMD_CHANNEL_HALF_CONNECTED"; 4507 break; 4508 case AsyncChannel.CMD_CHANNEL_DISCONNECTED: 4509 s = "AsyncChannel.CMD_CHANNEL_DISCONNECTED"; 4510 break; 4511 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4512 s = "WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST"; 4513 break; 4514 case WifiManager.DISABLE_NETWORK: 4515 s = "WifiManager.DISABLE_NETWORK"; 4516 break; 4517 case WifiManager.CONNECT_NETWORK: 4518 s = "CONNECT_NETWORK"; 4519 break; 4520 case WifiManager.SAVE_NETWORK: 4521 s = "SAVE_NETWORK"; 4522 break; 4523 case WifiManager.FORGET_NETWORK: 4524 s = "FORGET_NETWORK"; 4525 break; 4526 case WifiMonitor.SUP_CONNECTION_EVENT: 4527 s = "SUP_CONNECTION_EVENT"; 4528 break; 4529 case WifiMonitor.SUP_DISCONNECTION_EVENT: 4530 s = "SUP_DISCONNECTION_EVENT"; 4531 break; 4532 case WifiMonitor.SCAN_RESULTS_EVENT: 4533 s = "SCAN_RESULTS_EVENT"; 4534 break; 4535 case WifiMonitor.SCAN_FAILED_EVENT: 4536 s = "SCAN_FAILED_EVENT"; 4537 break; 4538 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4539 s = "SUPPLICANT_STATE_CHANGE_EVENT"; 4540 break; 4541 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4542 s = "AUTHENTICATION_FAILURE_EVENT"; 4543 break; 4544 case WifiMonitor.SSID_TEMP_DISABLED: 4545 s = "SSID_TEMP_DISABLED"; 4546 break; 4547 case WifiMonitor.SSID_REENABLED: 4548 s = "SSID_REENABLED"; 4549 break; 4550 case WifiMonitor.WPS_SUCCESS_EVENT: 4551 s = "WPS_SUCCESS_EVENT"; 4552 break; 4553 case WifiMonitor.WPS_FAIL_EVENT: 4554 s = "WPS_FAIL_EVENT"; 4555 break; 4556 case WifiMonitor.SUP_REQUEST_IDENTITY: 4557 s = "SUP_REQUEST_IDENTITY"; 4558 break; 4559 case WifiMonitor.NETWORK_CONNECTION_EVENT: 4560 s = "NETWORK_CONNECTION_EVENT"; 4561 break; 4562 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 4563 s = "NETWORK_DISCONNECTION_EVENT"; 4564 break; 4565 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4566 s = "ASSOCIATION_REJECTION_EVENT"; 4567 break; 4568 case WifiMonitor.ANQP_DONE_EVENT: 4569 s = "WifiMonitor.ANQP_DONE_EVENT"; 4570 break; 4571 case WifiMonitor.RX_HS20_ANQP_ICON_EVENT: 4572 s = "WifiMonitor.RX_HS20_ANQP_ICON_EVENT"; 4573 break; 4574 case WifiMonitor.GAS_QUERY_DONE_EVENT: 4575 s = "WifiMonitor.GAS_QUERY_DONE_EVENT"; 4576 break; 4577 case WifiMonitor.HS20_REMEDIATION_EVENT: 4578 s = "WifiMonitor.HS20_REMEDIATION_EVENT"; 4579 break; 4580 case WifiMonitor.GAS_QUERY_START_EVENT: 4581 s = "WifiMonitor.GAS_QUERY_START_EVENT"; 4582 break; 4583 case WifiP2pServiceImpl.GROUP_CREATING_TIMED_OUT: 4584 s = "GROUP_CREATING_TIMED_OUT"; 4585 break; 4586 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 4587 s = "P2P_CONNECTION_CHANGED"; 4588 break; 4589 case WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE: 4590 s = "P2P.DISCONNECT_WIFI_RESPONSE"; 4591 break; 4592 case WifiP2pServiceImpl.SET_MIRACAST_MODE: 4593 s = "P2P.SET_MIRACAST_MODE"; 4594 break; 4595 case WifiP2pServiceImpl.BLOCK_DISCOVERY: 4596 s = "P2P.BLOCK_DISCOVERY"; 4597 break; 4598 case WifiManager.CANCEL_WPS: 4599 s = "CANCEL_WPS"; 4600 break; 4601 case WifiManager.CANCEL_WPS_FAILED: 4602 s = "CANCEL_WPS_FAILED"; 4603 break; 4604 case WifiManager.CANCEL_WPS_SUCCEDED: 4605 s = "CANCEL_WPS_SUCCEDED"; 4606 break; 4607 case WifiManager.START_WPS: 4608 s = "START_WPS"; 4609 break; 4610 case WifiManager.START_WPS_SUCCEEDED: 4611 s = "START_WPS_SUCCEEDED"; 4612 break; 4613 case WifiManager.WPS_FAILED: 4614 s = "WPS_FAILED"; 4615 break; 4616 case WifiManager.WPS_COMPLETED: 4617 s = "WPS_COMPLETED"; 4618 break; 4619 case WifiManager.RSSI_PKTCNT_FETCH: 4620 s = "RSSI_PKTCNT_FETCH"; 4621 break; 4622 default: 4623 s = "what:" + Integer.toString(what); 4624 break; 4625 } 4626 return s; 4627 } 4628 4629 void registerConnected() { 4630 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4631 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 4632 // On connect, reset wifiScoreReport 4633 mWifiScoreReport.reset(); 4634 } 4635 } 4636 4637 void registerDisconnected() { 4638 if (mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 4639 mWifiConfigManager.updateNetworkAfterDisconnect(mLastNetworkId); 4640 // We are switching away from this configuration, 4641 // hence record the time we were connected last 4642 WifiConfiguration config = mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4643 if (config != null) { 4644 // Remove WifiConfiguration for ephemeral or Passpoint networks, since they're 4645 // temporary networks. 4646 if (config.ephemeral || config.isPasspoint()) { 4647 mWifiConfigManager.removeNetwork(mLastNetworkId, Process.WIFI_UID); 4648 } 4649 } 4650 } 4651 } 4652 4653 /** 4654 * Returns Wificonfiguration object correponding to the currently connected network, null if 4655 * not connected. 4656 */ 4657 public WifiConfiguration getCurrentWifiConfiguration() { 4658 if (mLastNetworkId == WifiConfiguration.INVALID_NETWORK_ID) { 4659 return null; 4660 } 4661 return mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 4662 } 4663 4664 ScanResult getCurrentScanResult() { 4665 WifiConfiguration config = getCurrentWifiConfiguration(); 4666 if (config == null) { 4667 return null; 4668 } 4669 String BSSID = mWifiInfo.getBSSID(); 4670 if (BSSID == null) { 4671 BSSID = mTargetRoamBSSID; 4672 } 4673 ScanDetailCache scanDetailCache = 4674 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 4675 4676 if (scanDetailCache == null) { 4677 return null; 4678 } 4679 4680 return scanDetailCache.get(BSSID); 4681 } 4682 4683 String getCurrentBSSID() { 4684 if (isLinkDebouncing()) { 4685 return null; 4686 } 4687 return mLastBssid; 4688 } 4689 4690 class ConnectModeState extends State { 4691 4692 @Override 4693 public void enter() { 4694 // Let the system know that wifi is available in client mode. 4695 setWifiState(WIFI_STATE_ENABLED); 4696 4697 mNetworkInfo.setIsAvailable(true); 4698 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4699 4700 // initialize network state 4701 setNetworkDetailedState(DetailedState.DISCONNECTED); 4702 4703 4704 // Inform WifiConnectivityManager that Wifi is enabled 4705 mWifiConnectivityManager.setWifiEnabled(true); 4706 // Inform metrics that Wifi is Enabled (but not yet connected) 4707 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 4708 // Inform p2p service that wifi is up and ready when applicable 4709 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 4710 } 4711 4712 @Override 4713 public void exit() { 4714 // Let the system know that wifi is not available since we are exiting client mode. 4715 mNetworkInfo.setIsAvailable(false); 4716 if (mNetworkAgent != null) mNetworkAgent.sendNetworkInfo(mNetworkInfo); 4717 // Inform WifiConnectivityManager that Wifi is disabled 4718 mWifiConnectivityManager.setWifiEnabled(false); 4719 // Inform metrics that Wifi is being disabled (Toggled, airplane enabled, etc) 4720 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISABLED); 4721 } 4722 4723 @Override 4724 public boolean processMessage(Message message) { 4725 WifiConfiguration config; 4726 int netId; 4727 boolean ok; 4728 boolean didDisconnect; 4729 String bssid; 4730 String ssid; 4731 NetworkUpdateResult result; 4732 Set<Integer> removedNetworkIds; 4733 int reasonCode; 4734 logStateAndMessage(message, this); 4735 4736 switch (message.what) { 4737 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 4738 mWifiDiagnostics.captureBugReportData( 4739 WifiDiagnostics.REPORT_REASON_ASSOC_FAILURE); 4740 didBlackListBSSID = false; 4741 bssid = (String) message.obj; 4742 reasonCode = message.arg2; 4743 if (bssid == null || TextUtils.isEmpty(bssid)) { 4744 // If BSSID is null, use the target roam BSSID 4745 bssid = mTargetRoamBSSID; 4746 } 4747 if (bssid != null) { 4748 // If we have a BSSID, tell configStore to black list it 4749 didBlackListBSSID = mWifiConnectivityManager.trackBssid(bssid, false, 4750 reasonCode); 4751 } 4752 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4753 WifiConfiguration.NetworkSelectionStatus 4754 .DISABLED_ASSOCIATION_REJECTION); 4755 mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT); 4756 //If rejection occurred while Metrics is tracking a ConnnectionEvent, end it. 4757 reportConnectionAttemptEnd( 4758 WifiMetrics.ConnectionEvent.FAILURE_ASSOCIATION_REJECTION, 4759 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4760 mWifiInjector.getWifiLastResortWatchdog() 4761 .noteConnectionFailureAndTriggerIfNeeded( 4762 getTargetSsid(), bssid, 4763 WifiLastResortWatchdog.FAILURE_CODE_ASSOCIATION); 4764 break; 4765 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 4766 mWifiDiagnostics.captureBugReportData( 4767 WifiDiagnostics.REPORT_REASON_AUTH_FAILURE); 4768 mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT); 4769 // In case of wrong password, rely on SSID_TEMP_DISABLE event to update 4770 // the WifiConfigManager 4771 if ((message.arg2 != WifiMonitor.AUTHENTICATION_FAILURE_REASON_WRONG_PSWD) 4772 && (mTargetNetworkId != WifiConfiguration.INVALID_NETWORK_ID)) { 4773 mWifiConfigManager.updateNetworkSelectionStatus(mTargetNetworkId, 4774 WifiConfiguration.NetworkSelectionStatus 4775 .DISABLED_AUTHENTICATION_FAILURE); 4776 } 4777 //If failure occurred while Metrics is tracking a ConnnectionEvent, end it. 4778 reportConnectionAttemptEnd( 4779 WifiMetrics.ConnectionEvent.FAILURE_AUTHENTICATION_FAILURE, 4780 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4781 mWifiInjector.getWifiLastResortWatchdog() 4782 .noteConnectionFailureAndTriggerIfNeeded( 4783 getTargetSsid(), mTargetRoamBSSID, 4784 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4785 break; 4786 case WifiMonitor.SSID_TEMP_DISABLED: 4787 netId = lookupFrameworkNetworkId(message.arg1); 4788 Log.e(TAG, "Supplicant SSID temporary disabled:" 4789 + mWifiConfigManager.getConfiguredNetwork(netId)); 4790 mWifiConfigManager.updateNetworkSelectionStatus( 4791 netId, 4792 WifiConfiguration.NetworkSelectionStatus 4793 .DISABLED_AUTHENTICATION_FAILURE); 4794 reportConnectionAttemptEnd( 4795 WifiMetrics.ConnectionEvent.FAILURE_SSID_TEMP_DISABLED, 4796 WifiMetricsProto.ConnectionEvent.HLF_NONE); 4797 mWifiInjector.getWifiLastResortWatchdog() 4798 .noteConnectionFailureAndTriggerIfNeeded( 4799 getTargetSsid(), mTargetRoamBSSID, 4800 WifiLastResortWatchdog.FAILURE_CODE_AUTHENTICATION); 4801 break; 4802 case WifiMonitor.SSID_REENABLED: 4803 netId = lookupFrameworkNetworkId(message.arg1); 4804 Log.d(TAG, "Supplicant SSID reenable:" 4805 + mWifiConfigManager.getConfiguredNetwork(netId)); 4806 // Do not re-enable it in Quality Network Selection since framework has its own 4807 // Algorithm of disable/enable 4808 break; 4809 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 4810 SupplicantState state = handleSupplicantStateChange(message); 4811 // A driver/firmware hang can now put the interface in a down state. 4812 // We detect the interface going down and recover from it 4813 if (!SupplicantState.isDriverActive(state)) { 4814 if (mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4815 handleNetworkDisconnect(); 4816 } 4817 log("Detected an interface down, restart driver"); 4818 // Rely on the fact that this will force us into killing supplicant and then 4819 // restart supplicant from a clean state. 4820 transitionTo(mSupplicantStoppingState); 4821 sendMessage(CMD_START_SUPPLICANT); 4822 break; 4823 } 4824 4825 // Supplicant can fail to report a NETWORK_DISCONNECTION_EVENT 4826 // when authentication times out after a successful connection, 4827 // we can figure this from the supplicant state. If supplicant 4828 // state is DISCONNECTED, but the mNetworkInfo says we are not 4829 // disconnected, we need to handle a disconnection 4830 if (!isLinkDebouncing() && state == SupplicantState.DISCONNECTED && 4831 mNetworkInfo.getState() != NetworkInfo.State.DISCONNECTED) { 4832 if (mVerboseLoggingEnabled) { 4833 log("Missed CTRL-EVENT-DISCONNECTED, disconnect"); 4834 } 4835 handleNetworkDisconnect(); 4836 transitionTo(mDisconnectedState); 4837 } 4838 4839 // If we have COMPLETED a connection to a BSSID, start doing 4840 // DNAv4/DNAv6 -style probing for on-link neighbors of 4841 // interest (e.g. routers); harmless if none are configured. 4842 if (state == SupplicantState.COMPLETED) { 4843 mIpManager.confirmConfiguration(); 4844 } 4845 break; 4846 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 4847 if (message.arg1 == 1) { 4848 mWifiNative.disconnect(); 4849 mTemporarilyDisconnectWifi = true; 4850 } else { 4851 mWifiNative.reconnect(); 4852 mTemporarilyDisconnectWifi = false; 4853 } 4854 break; 4855 case CMD_ADD_OR_UPDATE_NETWORK: 4856 config = (WifiConfiguration) message.obj; 4857 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 4858 if (!result.isSuccess()) { 4859 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4860 } 4861 replyToMessage(message, message.what, result.getNetworkId()); 4862 break; 4863 case CMD_REMOVE_NETWORK: 4864 if (!deleteNetworkConfigAndSendReply(message, false)) { 4865 // failed to remove the config and caller was notified 4866 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4867 break; 4868 } 4869 // we successfully deleted the network config 4870 netId = message.arg1; 4871 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4872 // Disconnect and let autojoin reselect a new network 4873 sendMessage(CMD_DISCONNECT); 4874 } 4875 break; 4876 case CMD_ENABLE_NETWORK: 4877 boolean disableOthers = message.arg2 == 1; 4878 netId = message.arg1; 4879 if (disableOthers) { 4880 // If the app has all the necessary permissions, this will trigger a connect 4881 // attempt. 4882 ok = connectToUserSelectNetwork(netId, message.sendingUid); 4883 } else { 4884 ok = mWifiConfigManager.enableNetwork(netId, false, message.sendingUid); 4885 } 4886 if (!ok) { 4887 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4888 } 4889 replyToMessage(message, message.what, ok ? SUCCESS : FAILURE); 4890 break; 4891 case WifiManager.DISABLE_NETWORK: 4892 netId = message.arg1; 4893 if (mWifiConfigManager.disableNetwork(netId, message.sendingUid)) { 4894 replyToMessage(message, WifiManager.DISABLE_NETWORK_SUCCEEDED); 4895 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 4896 // Disconnect and let autojoin reselect a new network 4897 sendMessage(CMD_DISCONNECT); 4898 } 4899 } else { 4900 loge("Failed to remove network"); 4901 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 4902 replyToMessage(message, WifiManager.DISABLE_NETWORK_FAILED, 4903 WifiManager.ERROR); 4904 } 4905 break; 4906 case CMD_DISABLE_EPHEMERAL_NETWORK: 4907 config = mWifiConfigManager.disableEphemeralNetwork((String)message.obj); 4908 if (config != null) { 4909 if (config.networkId == mTargetNetworkId 4910 || config.networkId == mLastNetworkId) { 4911 // Disconnect and let autojoin reselect a new network 4912 sendMessage(CMD_DISCONNECT); 4913 } 4914 } 4915 break; 4916 case CMD_SAVE_CONFIG: 4917 ok = mWifiConfigManager.saveToStore(true); 4918 replyToMessage(message, CMD_SAVE_CONFIG, ok ? SUCCESS : FAILURE); 4919 // Inform the backup manager about a data change 4920 mBackupManagerProxy.notifyDataChanged(); 4921 break; 4922 case WifiMonitor.SUP_REQUEST_IDENTITY: 4923 int supplicantNetworkId = message.arg2; 4924 netId = lookupFrameworkNetworkId(supplicantNetworkId); 4925 boolean identitySent = false; 4926 int eapMethod = WifiEnterpriseConfig.Eap.NONE; 4927 if (targetWificonfiguration != null 4928 && targetWificonfiguration.enterpriseConfig != null) { 4929 eapMethod = targetWificonfiguration.enterpriseConfig.getEapMethod(); 4930 } 4931 // For SIM & AKA/AKA' EAP method Only, get identity from ICC 4932 if (targetWificonfiguration != null 4933 && targetWificonfiguration.networkId == netId 4934 && (targetWificonfiguration.allowedKeyManagement 4935 .get(WifiConfiguration.KeyMgmt.WPA_EAP) 4936 || targetWificonfiguration.allowedKeyManagement 4937 .get(WifiConfiguration.KeyMgmt.IEEE8021X)) 4938 && TelephonyUtil.isSimEapMethod(eapMethod)) { 4939 String identity = 4940 TelephonyUtil.getSimIdentity(getTelephonyManager(), eapMethod); 4941 if (identity != null) { 4942 mWifiNative.simIdentityResponse(supplicantNetworkId, identity); 4943 identitySent = true; 4944 } 4945 } 4946 if (!identitySent) { 4947 // Supplicant lacks credentials to connect to that network, hence black list 4948 ssid = (String) message.obj; 4949 if (targetWificonfiguration != null && ssid != null 4950 && targetWificonfiguration.SSID != null 4951 && targetWificonfiguration.SSID.equals("\"" + ssid + "\"")) { 4952 mWifiConfigManager.updateNetworkSelectionStatus( 4953 targetWificonfiguration.networkId, 4954 WifiConfiguration.NetworkSelectionStatus 4955 .DISABLED_AUTHENTICATION_NO_CREDENTIALS); 4956 } 4957 mWifiNative.disconnect(); 4958 } 4959 break; 4960 case WifiMonitor.SUP_REQUEST_SIM_AUTH: 4961 logd("Received SUP_REQUEST_SIM_AUTH"); 4962 SimAuthRequestData requestData = (SimAuthRequestData) message.obj; 4963 if (requestData != null) { 4964 if (requestData.protocol == WifiEnterpriseConfig.Eap.SIM) { 4965 handleGsmAuthRequest(requestData); 4966 } else if (requestData.protocol == WifiEnterpriseConfig.Eap.AKA 4967 || requestData.protocol == WifiEnterpriseConfig.Eap.AKA_PRIME) { 4968 handle3GAuthRequest(requestData); 4969 } 4970 } else { 4971 loge("Invalid sim auth request"); 4972 } 4973 break; 4974 case CMD_GET_MATCHING_CONFIG: 4975 // TODO(b/31065385) 4976 replyToMessage(message, message.what, null); 4977 break; 4978 case CMD_RECONNECT: 4979 mWifiConnectivityManager.forceConnectivityScan(); 4980 break; 4981 case CMD_REASSOCIATE: 4982 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4983 mWifiNative.reassociate(); 4984 break; 4985 case CMD_RELOAD_TLS_AND_RECONNECT: 4986 if (mWifiConfigManager.needsUnlockedKeyStore()) { 4987 logd("Reconnecting to give a chance to un-connected TLS networks"); 4988 mWifiNative.disconnect(); 4989 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 4990 mWifiNative.reconnect(); 4991 } 4992 break; 4993 case CMD_START_ROAM: 4994 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 4995 return HANDLED; 4996 case CMD_START_CONNECT: 4997 /* connect command coming from auto-join */ 4998 netId = message.arg1; 4999 bssid = (String) message.obj; 5000 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 5001 logd("CMD_START_CONNECT sup state " 5002 + mSupplicantStateTracker.getSupplicantStateName() 5003 + " my state " + getCurrentState().getName() 5004 + " nid=" + Integer.toString(netId) 5005 + " roam=" + Boolean.toString(mAutoRoaming)); 5006 if (config == null) { 5007 loge("CMD_START_CONNECT and no config, bail out..."); 5008 break; 5009 } 5010 mTargetNetworkId = netId; 5011 setTargetBssid(config, bssid); 5012 5013 reportConnectionAttemptStart(config, mTargetRoamBSSID, 5014 WifiMetricsProto.ConnectionEvent.ROAM_UNRELATED); 5015 boolean shouldDisconnect = (getCurrentState() != mDisconnectedState); 5016 if (mWifiNative.connectToNetwork(config, shouldDisconnect)) { 5017 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 5018 targetWificonfiguration = config; 5019 mAutoRoaming = false; 5020 if (isRoaming() || isLinkDebouncing()) { 5021 transitionTo(mRoamingState); 5022 } else if (shouldDisconnect) { 5023 transitionTo(mDisconnectingState); 5024 } else { 5025 transitionTo(mDisconnectedState); 5026 } 5027 } else { 5028 loge("CMD_START_CONNECT Failed to start connection to network " + config); 5029 reportConnectionAttemptEnd( 5030 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 5031 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5032 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5033 WifiManager.ERROR); 5034 break; 5035 } 5036 break; 5037 case CMD_REMOVE_APP_CONFIGURATIONS: 5038 removedNetworkIds = 5039 mWifiConfigManager.removeNetworksForApp((ApplicationInfo) message.obj); 5040 if (removedNetworkIds.contains(mTargetNetworkId) || 5041 removedNetworkIds.contains(mLastNetworkId)) { 5042 // Disconnect and let autojoin reselect a new network. 5043 sendMessage(CMD_DISCONNECT); 5044 } 5045 break; 5046 case CMD_REMOVE_USER_CONFIGURATIONS: 5047 removedNetworkIds = 5048 mWifiConfigManager.removeNetworksForUser((Integer) message.arg1); 5049 if (removedNetworkIds.contains(mTargetNetworkId) || 5050 removedNetworkIds.contains(mLastNetworkId)) { 5051 // Disconnect and let autojoin reselect a new network. 5052 sendMessage(CMD_DISCONNECT); 5053 } 5054 break; 5055 case WifiManager.CONNECT_NETWORK: 5056 /** 5057 * The connect message can contain a network id passed as arg1 on message or 5058 * or a config passed as obj on message. 5059 * For a new network, a config is passed to create and connect. 5060 * For an existing network, a network id is passed 5061 */ 5062 netId = message.arg1; 5063 config = (WifiConfiguration) message.obj; 5064 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5065 // New network addition. 5066 if (config != null) { 5067 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5068 if (!result.isSuccess()) { 5069 loge("CONNECT_NETWORK adding/updating config=" + config + " failed"); 5070 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5071 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5072 WifiManager.ERROR); 5073 break; 5074 } 5075 netId = result.getNetworkId(); 5076 } 5077 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5078 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5079 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 5080 WifiManager.NOT_AUTHORIZED); 5081 break; 5082 } 5083 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5084 replyToMessage(message, WifiManager.CONNECT_NETWORK_SUCCEEDED); 5085 break; 5086 case WifiManager.SAVE_NETWORK: 5087 config = (WifiConfiguration) message.obj; 5088 mWifiConnectionStatistics.numWifiManagerJoinAttempt++; 5089 if (config == null) { 5090 loge("SAVE_NETWORK with null configuration" 5091 + mSupplicantStateTracker.getSupplicantStateName() 5092 + " my state " + getCurrentState().getName()); 5093 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5094 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5095 WifiManager.ERROR); 5096 break; 5097 } 5098 result = mWifiConfigManager.addOrUpdateNetwork(config, message.sendingUid); 5099 if (!result.isSuccess()) { 5100 loge("SAVE_NETWORK adding/updating config=" + config + " failed"); 5101 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5102 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5103 WifiManager.ERROR); 5104 break; 5105 } 5106 netId = result.getNetworkId(); 5107 if (mWifiInfo.getNetworkId() == netId) { 5108 if (result.hasIpChanged()) { 5109 // The currently connection configuration was changed 5110 // We switched from DHCP to static or from static to DHCP, or the 5111 // static IP address has changed. 5112 log("Reconfiguring IP on connection"); 5113 // TODO: clear addresses and disable IPv6 5114 // to simplify obtainingIpState. 5115 transitionTo(mObtainingIpState); 5116 } 5117 if (result.hasProxyChanged()) { 5118 log("Reconfiguring proxy on connection"); 5119 mIpManager.setHttpProxy( 5120 getCurrentWifiConfiguration().getHttpProxy()); 5121 } 5122 } else { 5123 if (!connectToUserSelectNetwork(netId, message.sendingUid)) { 5124 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 5125 replyToMessage(message, WifiManager.SAVE_NETWORK_FAILED, 5126 WifiManager.NOT_AUTHORIZED); 5127 break; 5128 } 5129 } 5130 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_SAVED, config); 5131 replyToMessage(message, WifiManager.SAVE_NETWORK_SUCCEEDED); 5132 break; 5133 case WifiManager.FORGET_NETWORK: 5134 if (!deleteNetworkConfigAndSendReply(message, true)) { 5135 // Caller was notified of failure, nothing else to do 5136 break; 5137 } 5138 // the network was deleted 5139 netId = message.arg1; 5140 if (netId == mTargetNetworkId || netId == mLastNetworkId) { 5141 // Disconnect and let autojoin reselect a new network 5142 sendMessage(CMD_DISCONNECT); 5143 } 5144 break; 5145 case WifiManager.START_WPS: 5146 WpsInfo wpsInfo = (WpsInfo) message.obj; 5147 WpsResult wpsResult = new WpsResult(); 5148 switch (wpsInfo.setup) { 5149 case WpsInfo.PBC: 5150 if (mWifiNative.startWpsPbc(wpsInfo.BSSID)) { 5151 wpsResult.status = WpsResult.Status.SUCCESS; 5152 } else { 5153 Log.e(TAG, "Failed to start WPS push button configuration"); 5154 wpsResult.status = WpsResult.Status.FAILURE; 5155 } 5156 break; 5157 case WpsInfo.KEYPAD: 5158 if (mWifiNative.startWpsRegistrar(wpsInfo.BSSID, wpsInfo.pin)) { 5159 wpsResult.status = WpsResult.Status.SUCCESS; 5160 } else { 5161 Log.e(TAG, "Failed to start WPS push button configuration"); 5162 wpsResult.status = WpsResult.Status.FAILURE; 5163 } 5164 break; 5165 case WpsInfo.DISPLAY: 5166 wpsResult.pin = mWifiNative.startWpsPinDisplay(wpsInfo.BSSID); 5167 if (!TextUtils.isEmpty(wpsResult.pin)) { 5168 wpsResult.status = WpsResult.Status.SUCCESS; 5169 } else { 5170 Log.e(TAG, "Failed to start WPS pin method configuration"); 5171 wpsResult.status = WpsResult.Status.FAILURE; 5172 } 5173 break; 5174 default: 5175 wpsResult = new WpsResult(Status.FAILURE); 5176 loge("Invalid setup for WPS"); 5177 break; 5178 } 5179 if (wpsResult.status == Status.SUCCESS) { 5180 replyToMessage(message, WifiManager.START_WPS_SUCCEEDED, wpsResult); 5181 transitionTo(mWpsRunningState); 5182 } else { 5183 loge("Failed to start WPS with config " + wpsInfo.toString()); 5184 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.ERROR); 5185 } 5186 break; 5187 case CMD_ASSOCIATED_BSSID: 5188 // This is where we can confirm the connection BSSID. Use it to find the 5189 // right ScanDetail to populate metrics. 5190 String someBssid = (String) message.obj; 5191 if (someBssid != null) { 5192 // Get the ScanDetail associated with this BSSID. 5193 ScanDetailCache scanDetailCache = 5194 mWifiConfigManager.getScanDetailCacheForNetwork(mTargetNetworkId); 5195 if (scanDetailCache != null) { 5196 mWifiMetrics.setConnectionScanDetail(scanDetailCache.getScanDetail( 5197 someBssid)); 5198 } 5199 } 5200 return NOT_HANDLED; 5201 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5202 if (mVerboseLoggingEnabled) log("Network connection established"); 5203 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5204 mLastBssid = (String) message.obj; 5205 reasonCode = message.arg2; 5206 // TODO: This check should not be needed after WifiStateMachinePrime refactor. 5207 // Currently, the last connected network configuration is left in 5208 // wpa_supplicant, this may result in wpa_supplicant initiating connection 5209 // to it after a config store reload. Hence the old network Id lookups may not 5210 // work, so disconnect the network and let network selector reselect a new 5211 // network. 5212 if (getCurrentWifiConfiguration() != null) { 5213 mWifiInfo.setBSSID(mLastBssid); 5214 mWifiInfo.setNetworkId(mLastNetworkId); 5215 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5216 sendNetworkStateChangeBroadcast(mLastBssid); 5217 transitionTo(mObtainingIpState); 5218 } else { 5219 logw("Connected to unknown networkId " + mLastNetworkId 5220 + ", disconnecting..."); 5221 sendMessage(CMD_DISCONNECT); 5222 } 5223 break; 5224 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5225 // Calling handleNetworkDisconnect here is redundant because we might already 5226 // have called it when leaving L2ConnectedState to go to disconnecting state 5227 // or thru other path 5228 // We should normally check the mWifiInfo or mLastNetworkId so as to check 5229 // if they are valid, and only in this case call handleNEtworkDisconnect, 5230 // TODO: this should be fixed for a L MR release 5231 // The side effect of calling handleNetworkDisconnect twice is that a bunch of 5232 // idempotent commands are executed twice (stopping Dhcp, enabling the SPS mode 5233 // at the chip etc... 5234 if (mVerboseLoggingEnabled) log("ConnectModeState: Network connection lost "); 5235 handleNetworkDisconnect(); 5236 transitionTo(mDisconnectedState); 5237 break; 5238 case CMD_QUERY_OSU_ICON: 5239 mPasspointManager.queryPasspointIcon( 5240 ((Bundle) message.obj).getLong(EXTRA_OSU_ICON_QUERY_BSSID), 5241 ((Bundle) message.obj).getString(EXTRA_OSU_ICON_QUERY_FILENAME)); 5242 break; 5243 case CMD_MATCH_PROVIDER_NETWORK: 5244 // TODO(b/31065385): Passpoint config management. 5245 replyToMessage(message, message.what, 0); 5246 break; 5247 case CMD_ENABLE_P2P: 5248 p2pSendMessage(WifiStateMachine.CMD_ENABLE_P2P); 5249 break; 5250 default: 5251 return NOT_HANDLED; 5252 } 5253 return HANDLED; 5254 } 5255 } 5256 5257 private void updateCapabilities(WifiConfiguration config) { 5258 NetworkCapabilities networkCapabilities = new NetworkCapabilities(mDfltNetworkCapabilities); 5259 if (config != null) { 5260 if (config.ephemeral) { 5261 networkCapabilities.removeCapability( 5262 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5263 } else { 5264 networkCapabilities.addCapability( 5265 NetworkCapabilities.NET_CAPABILITY_TRUSTED); 5266 } 5267 5268 networkCapabilities.setSignalStrength( 5269 (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI) 5270 ? mWifiInfo.getRssi() 5271 : NetworkCapabilities.SIGNAL_STRENGTH_UNSPECIFIED); 5272 } 5273 5274 if (mWifiInfo.getMeteredHint()) { 5275 networkCapabilities.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); 5276 } 5277 5278 mNetworkAgent.sendNetworkCapabilities(networkCapabilities); 5279 } 5280 5281 private class WifiNetworkAgent extends NetworkAgent { 5282 public WifiNetworkAgent(Looper l, Context c, String TAG, NetworkInfo ni, 5283 NetworkCapabilities nc, LinkProperties lp, int score, NetworkMisc misc) { 5284 super(l, c, TAG, ni, nc, lp, score, misc); 5285 } 5286 5287 @Override 5288 protected void unwanted() { 5289 // Ignore if we're not the current networkAgent. 5290 if (this != mNetworkAgent) return; 5291 if (mVerboseLoggingEnabled) { 5292 log("WifiNetworkAgent -> Wifi unwanted score " + Integer.toString(mWifiInfo.score)); 5293 } 5294 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISCONNECT); 5295 } 5296 5297 @Override 5298 protected void networkStatus(int status, String redirectUrl) { 5299 if (this != mNetworkAgent) return; 5300 if (status == NetworkAgent.INVALID_NETWORK) { 5301 if (mVerboseLoggingEnabled) { 5302 log("WifiNetworkAgent -> Wifi networkStatus invalid, score=" 5303 + Integer.toString(mWifiInfo.score)); 5304 } 5305 unwantedNetwork(NETWORK_STATUS_UNWANTED_VALIDATION_FAILED); 5306 } else if (status == NetworkAgent.VALID_NETWORK) { 5307 if (mVerboseLoggingEnabled) { 5308 log("WifiNetworkAgent -> Wifi networkStatus valid, score= " 5309 + Integer.toString(mWifiInfo.score)); 5310 } 5311 doNetworkStatus(status); 5312 } 5313 } 5314 5315 @Override 5316 protected void saveAcceptUnvalidated(boolean accept) { 5317 if (this != mNetworkAgent) return; 5318 WifiStateMachine.this.sendMessage(CMD_ACCEPT_UNVALIDATED, accept ? 1 : 0); 5319 } 5320 5321 @Override 5322 protected void startPacketKeepalive(Message msg) { 5323 WifiStateMachine.this.sendMessage( 5324 CMD_START_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5325 } 5326 5327 @Override 5328 protected void stopPacketKeepalive(Message msg) { 5329 WifiStateMachine.this.sendMessage( 5330 CMD_STOP_IP_PACKET_OFFLOAD, msg.arg1, msg.arg2, msg.obj); 5331 } 5332 5333 @Override 5334 protected void setSignalStrengthThresholds(int[] thresholds) { 5335 // 0. If there are no thresholds, or if the thresholds are invalid, stop RSSI monitoring. 5336 // 1. Tell the hardware to start RSSI monitoring here, possibly adding MIN_VALUE and 5337 // MAX_VALUE at the start/end of the thresholds array if necessary. 5338 // 2. Ensure that when the hardware event fires, we fetch the RSSI from the hardware 5339 // event, call mWifiInfo.setRssi() with it, and call updateCapabilities(), and then 5340 // re-arm the hardware event. This needs to be done on the state machine thread to 5341 // avoid race conditions. The RSSI used to re-arm the event (and perhaps also the one 5342 // sent in the NetworkCapabilities) must be the one received from the hardware event 5343 // received, or we might skip callbacks. 5344 // 3. Ensure that when we disconnect, RSSI monitoring is stopped. 5345 log("Received signal strength thresholds: " + Arrays.toString(thresholds)); 5346 if (thresholds.length == 0) { 5347 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5348 mWifiInfo.getRssi()); 5349 return; 5350 } 5351 int [] rssiVals = Arrays.copyOf(thresholds, thresholds.length + 2); 5352 rssiVals[rssiVals.length - 2] = Byte.MIN_VALUE; 5353 rssiVals[rssiVals.length - 1] = Byte.MAX_VALUE; 5354 Arrays.sort(rssiVals); 5355 byte[] rssiRange = new byte[rssiVals.length]; 5356 for (int i = 0; i < rssiVals.length; i++) { 5357 int val = rssiVals[i]; 5358 if (val <= Byte.MAX_VALUE && val >= Byte.MIN_VALUE) { 5359 rssiRange[i] = (byte) val; 5360 } else { 5361 Log.e(TAG, "Illegal value " + val + " for RSSI thresholds: " 5362 + Arrays.toString(rssiVals)); 5363 WifiStateMachine.this.sendMessage(CMD_STOP_RSSI_MONITORING_OFFLOAD, 5364 mWifiInfo.getRssi()); 5365 return; 5366 } 5367 } 5368 // TODO: Do we quash rssi values in this sorted array which are very close? 5369 mRssiRanges = rssiRange; 5370 WifiStateMachine.this.sendMessage(CMD_START_RSSI_MONITORING_OFFLOAD, 5371 mWifiInfo.getRssi()); 5372 } 5373 5374 @Override 5375 protected void preventAutomaticReconnect() { 5376 if (this != mNetworkAgent) return; 5377 unwantedNetwork(NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN); 5378 } 5379 } 5380 5381 void unwantedNetwork(int reason) { 5382 sendMessage(CMD_UNWANTED_NETWORK, reason); 5383 } 5384 5385 void doNetworkStatus(int status) { 5386 sendMessage(CMD_NETWORK_STATUS, status); 5387 } 5388 5389 // rfc4186 & rfc4187: 5390 // create Permanent Identity base on IMSI, 5391 // identity = usernam@realm 5392 // with username = prefix | IMSI 5393 // and realm is derived MMC/MNC tuple according 3GGP spec(TS23.003) 5394 private String buildIdentity(int eapMethod, String imsi, String mccMnc) { 5395 String mcc; 5396 String mnc; 5397 String prefix; 5398 5399 if (imsi == null || imsi.isEmpty()) 5400 return ""; 5401 5402 if (eapMethod == WifiEnterpriseConfig.Eap.SIM) 5403 prefix = "1"; 5404 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA) 5405 prefix = "0"; 5406 else if (eapMethod == WifiEnterpriseConfig.Eap.AKA_PRIME) 5407 prefix = "6"; 5408 else // not a valide EapMethod 5409 return ""; 5410 5411 /* extract mcc & mnc from mccMnc */ 5412 if (mccMnc != null && !mccMnc.isEmpty()) { 5413 mcc = mccMnc.substring(0, 3); 5414 mnc = mccMnc.substring(3); 5415 if (mnc.length() == 2) 5416 mnc = "0" + mnc; 5417 } else { 5418 // extract mcc & mnc from IMSI, assume mnc size is 3 5419 mcc = imsi.substring(0, 3); 5420 mnc = imsi.substring(3, 6); 5421 } 5422 5423 return prefix + imsi + "@wlan.mnc" + mnc + ".mcc" + mcc + ".3gppnetwork.org"; 5424 } 5425 5426 boolean startScanForConfiguration(WifiConfiguration config) { 5427 if (config == null) 5428 return false; 5429 5430 // We are still seeing a fairly high power consumption triggered by autojoin scans 5431 // Hence do partial scans only for PSK configuration that are roamable since the 5432 // primary purpose of the partial scans is roaming. 5433 // Full badn scans with exponential backoff for the purpose or extended roaming and 5434 // network switching are performed unconditionally. 5435 ScanDetailCache scanDetailCache = 5436 mWifiConfigManager.getScanDetailCacheForNetwork(config.networkId); 5437 if (scanDetailCache == null 5438 || !config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK) 5439 || scanDetailCache.size() > 6) { 5440 //return true but to not trigger the scan 5441 return true; 5442 } 5443 Set<Integer> freqs = 5444 mWifiConfigManager.fetchChannelSetForNetworkForPartialScan( 5445 config.networkId, ONE_HOUR_MILLI, mWifiInfo.getFrequency()); 5446 if (freqs != null && freqs.size() != 0) { 5447 //if (mVerboseLoggingEnabled) { 5448 logd("starting scan for " + config.configKey() + " with " + freqs); 5449 //} 5450 List<WifiScanner.ScanSettings.HiddenNetwork> hiddenNetworks = new ArrayList<>(); 5451 if (config.hiddenSSID) { 5452 hiddenNetworks.add(new WifiScanner.ScanSettings.HiddenNetwork(config.SSID)); 5453 } 5454 // Call wifi native to start the scan 5455 if (startScanNative(freqs, hiddenNetworks, WIFI_WORK_SOURCE)) { 5456 messageHandlingStatus = MESSAGE_HANDLING_STATUS_OK; 5457 } else { 5458 // used for debug only, mark scan as failed 5459 messageHandlingStatus = MESSAGE_HANDLING_STATUS_HANDLING_ERROR; 5460 } 5461 return true; 5462 } else { 5463 if (mVerboseLoggingEnabled) logd("no channels for " + config.configKey()); 5464 return false; 5465 } 5466 } 5467 5468 class L2ConnectedState extends State { 5469 @Override 5470 public void enter() { 5471 mRssiPollToken++; 5472 if (mEnableRssiPolling) { 5473 sendMessage(CMD_RSSI_POLL, mRssiPollToken, 0); 5474 } 5475 if (mNetworkAgent != null) { 5476 loge("Have NetworkAgent when entering L2Connected"); 5477 setNetworkDetailedState(DetailedState.DISCONNECTED); 5478 } 5479 setNetworkDetailedState(DetailedState.CONNECTING); 5480 5481 mNetworkAgent = new WifiNetworkAgent(getHandler().getLooper(), mContext, 5482 "WifiNetworkAgent", mNetworkInfo, mNetworkCapabilitiesFilter, 5483 mLinkProperties, 60, mNetworkMisc); 5484 5485 // We must clear the config BSSID, as the wifi chipset may decide to roam 5486 // from this point on and having the BSSID specified in the network block would 5487 // cause the roam to faile and the device to disconnect 5488 clearTargetBssid("L2ConnectedState"); 5489 mCountryCode.setReadyForChange(false); 5490 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_ASSOCIATED); 5491 } 5492 5493 @Override 5494 public void exit() { 5495 mIpManager.stop(); 5496 5497 // This is handled by receiving a NETWORK_DISCONNECTION_EVENT in ConnectModeState 5498 // Bug: 15347363 5499 // For paranoia's sake, call handleNetworkDisconnect 5500 // only if BSSID is null or last networkId 5501 // is not invalid. 5502 if (mVerboseLoggingEnabled) { 5503 StringBuilder sb = new StringBuilder(); 5504 sb.append("leaving L2ConnectedState state nid=" + Integer.toString(mLastNetworkId)); 5505 if (mLastBssid !=null) { 5506 sb.append(" ").append(mLastBssid); 5507 } 5508 } 5509 if (mLastBssid != null || mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5510 handleNetworkDisconnect(); 5511 } 5512 mCountryCode.setReadyForChange(true); 5513 mWifiMetrics.setWifiState(WifiMetricsProto.WifiLog.WIFI_DISCONNECTED); 5514 } 5515 5516 @Override 5517 public boolean processMessage(Message message) { 5518 logStateAndMessage(message, this); 5519 5520 switch (message.what) { 5521 case DhcpClient.CMD_PRE_DHCP_ACTION: 5522 handlePreDhcpSetup(); 5523 break; 5524 case DhcpClient.CMD_PRE_DHCP_ACTION_COMPLETE: 5525 mIpManager.completedPreDhcpAction(); 5526 break; 5527 case DhcpClient.CMD_POST_DHCP_ACTION: 5528 handlePostDhcpSetup(); 5529 // We advance to mConnectedState because IpManager will also send a 5530 // CMD_IPV4_PROVISIONING_SUCCESS message, which calls handleIPv4Success(), 5531 // which calls updateLinkProperties, which then sends 5532 // CMD_IP_CONFIGURATION_SUCCESSFUL. 5533 // 5534 // In the event of failure, we transition to mDisconnectingState 5535 // similarly--via messages sent back from IpManager. 5536 break; 5537 case CMD_IPV4_PROVISIONING_SUCCESS: { 5538 handleIPv4Success((DhcpResults) message.obj); 5539 sendNetworkStateChangeBroadcast(mLastBssid); 5540 break; 5541 } 5542 case CMD_IPV4_PROVISIONING_FAILURE: { 5543 handleIPv4Failure(); 5544 break; 5545 } 5546 case CMD_IP_CONFIGURATION_SUCCESSFUL: 5547 handleSuccessfulIpConfiguration(); 5548 reportConnectionAttemptEnd( 5549 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5550 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5551 sendConnectedState(); 5552 transitionTo(mConnectedState); 5553 break; 5554 case CMD_IP_CONFIGURATION_LOST: 5555 // Get Link layer stats so that we get fresh tx packet counters. 5556 getWifiLinkLayerStats(); 5557 handleIpConfigurationLost(); 5558 reportConnectionAttemptEnd( 5559 WifiMetrics.ConnectionEvent.FAILURE_DHCP, 5560 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5561 transitionTo(mDisconnectingState); 5562 break; 5563 case CMD_IP_REACHABILITY_LOST: 5564 if (mVerboseLoggingEnabled && message.obj != null) log((String) message.obj); 5565 if (mIpReachabilityDisconnectEnabled) { 5566 handleIpReachabilityLost(); 5567 transitionTo(mDisconnectingState); 5568 } else { 5569 logd("CMD_IP_REACHABILITY_LOST but disconnect disabled -- ignore"); 5570 } 5571 break; 5572 case CMD_DISCONNECT: 5573 mWifiNative.disconnect(); 5574 transitionTo(mDisconnectingState); 5575 break; 5576 case WifiP2pServiceImpl.DISCONNECT_WIFI_REQUEST: 5577 if (message.arg1 == 1) { 5578 mWifiNative.disconnect(); 5579 mTemporarilyDisconnectWifi = true; 5580 transitionTo(mDisconnectingState); 5581 } 5582 break; 5583 case CMD_SET_OPERATIONAL_MODE: 5584 if (message.arg1 != CONNECT_MODE) { 5585 sendMessage(CMD_DISCONNECT); 5586 deferMessage(message); 5587 } 5588 break; 5589 /* Ignore connection to same network */ 5590 case WifiManager.CONNECT_NETWORK: 5591 int netId = message.arg1; 5592 if (mWifiInfo.getNetworkId() == netId) { 5593 break; 5594 } 5595 return NOT_HANDLED; 5596 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5597 mWifiInfo.setBSSID((String) message.obj); 5598 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5599 mWifiInfo.setNetworkId(mLastNetworkId); 5600 if(!mLastBssid.equals(message.obj)) { 5601 mLastBssid = (String) message.obj; 5602 sendNetworkStateChangeBroadcast(mLastBssid); 5603 } 5604 break; 5605 case CMD_RSSI_POLL: 5606 if (message.arg1 == mRssiPollToken) { 5607 if (mEnableChipWakeUpWhenAssociated) { 5608 if (mVerboseLoggingEnabled) { 5609 log(" get link layer stats " + mWifiLinkLayerStatsSupported); 5610 } 5611 WifiLinkLayerStats stats = getWifiLinkLayerStats(); 5612 if (stats != null) { 5613 // Sanity check the results provided by driver 5614 if (mWifiInfo.getRssi() != WifiInfo.INVALID_RSSI 5615 && (stats.rssi_mgmt == 0 5616 || stats.beacon_rx == 0)) { 5617 stats = null; 5618 } 5619 } 5620 // Get Info and continue polling 5621 fetchRssiLinkSpeedAndFrequencyNative(); 5622 // Send the update score to network agent. 5623 mWifiScoreReport.calculateAndReportScore( 5624 mWifiInfo, mNetworkAgent, mAggressiveHandover, 5625 mWifiMetrics); 5626 } 5627 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5628 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5629 if (mVerboseLoggingEnabled) sendRssiChangeBroadcast(mWifiInfo.getRssi()); 5630 } else { 5631 // Polling has completed 5632 } 5633 break; 5634 case CMD_ENABLE_RSSI_POLL: 5635 cleanWifiScore(); 5636 if (mEnableRssiPollWhenAssociated) { 5637 mEnableRssiPolling = (message.arg1 == 1); 5638 } else { 5639 mEnableRssiPolling = false; 5640 } 5641 mRssiPollToken++; 5642 if (mEnableRssiPolling) { 5643 // First poll 5644 fetchRssiLinkSpeedAndFrequencyNative(); 5645 sendMessageDelayed(obtainMessage(CMD_RSSI_POLL, 5646 mRssiPollToken, 0), POLL_RSSI_INTERVAL_MSECS); 5647 } 5648 break; 5649 case WifiManager.RSSI_PKTCNT_FETCH: 5650 RssiPacketCountInfo info = new RssiPacketCountInfo(); 5651 fetchRssiLinkSpeedAndFrequencyNative(); 5652 info.rssi = mWifiInfo.getRssi(); 5653 WifiNative.TxPacketCounters counters = mWifiNative.getTxPacketCounters(); 5654 if (counters != null) { 5655 info.txgood = counters.txSucceeded; 5656 info.txbad = counters.txFailed; 5657 replyToMessage(message, WifiManager.RSSI_PKTCNT_FETCH_SUCCEEDED, info); 5658 } else { 5659 replyToMessage(message, 5660 WifiManager.RSSI_PKTCNT_FETCH_FAILED, WifiManager.ERROR); 5661 } 5662 break; 5663 case CMD_DELAYED_NETWORK_DISCONNECT: 5664 if (!isLinkDebouncing()) { 5665 5666 // Ignore if we are not debouncing 5667 logd("CMD_DELAYED_NETWORK_DISCONNECT and not debouncing - ignore " 5668 + message.arg1); 5669 return HANDLED; 5670 } else { 5671 logd("CMD_DELAYED_NETWORK_DISCONNECT and debouncing - disconnect " 5672 + message.arg1); 5673 5674 mIsLinkDebouncing = false; 5675 // If we are still debouncing while this message comes, 5676 // it means we were not able to reconnect within the alloted time 5677 // = LINK_FLAPPING_DEBOUNCE_MSEC 5678 // and thus, trigger a real disconnect 5679 handleNetworkDisconnect(); 5680 transitionTo(mDisconnectedState); 5681 } 5682 break; 5683 case CMD_ASSOCIATED_BSSID: 5684 if ((String) message.obj == null) { 5685 logw("Associated command w/o BSSID"); 5686 break; 5687 } 5688 mLastBssid = (String) message.obj; 5689 if (mLastBssid != null && (mWifiInfo.getBSSID() == null 5690 || !mLastBssid.equals(mWifiInfo.getBSSID()))) { 5691 mWifiInfo.setBSSID((String) message.obj); 5692 sendNetworkStateChangeBroadcast(mLastBssid); 5693 } 5694 break; 5695 case CMD_START_RSSI_MONITORING_OFFLOAD: 5696 case CMD_RSSI_THRESHOLD_BREACH: 5697 byte currRssi = (byte) message.arg1; 5698 processRssiThreshold(currRssi, message.what); 5699 break; 5700 case CMD_STOP_RSSI_MONITORING_OFFLOAD: 5701 stopRssiMonitoringOffload(); 5702 break; 5703 case CMD_RESET_SIM_NETWORKS: 5704 if (message.arg1 == 0 // sim was removed 5705 && mLastNetworkId != WifiConfiguration.INVALID_NETWORK_ID) { 5706 WifiConfiguration config = 5707 mWifiConfigManager.getConfiguredNetwork(mLastNetworkId); 5708 if (TelephonyUtil.isSimConfig(config)) { 5709 mWifiNative.disconnect(); 5710 transitionTo(mDisconnectingState); 5711 } 5712 } 5713 /* allow parent state to reset data for other networks */ 5714 return NOT_HANDLED; 5715 default: 5716 return NOT_HANDLED; 5717 } 5718 5719 return HANDLED; 5720 } 5721 } 5722 5723 class ObtainingIpState extends State { 5724 @Override 5725 public void enter() { 5726 WifiConfiguration currentConfig = getCurrentWifiConfiguration(); 5727 boolean isUsingStaticIp = 5728 (currentConfig.getIpAssignment() == IpConfiguration.IpAssignment.STATIC); 5729 if (mVerboseLoggingEnabled) { 5730 String key = ""; 5731 if (getCurrentWifiConfiguration() != null) { 5732 key = getCurrentWifiConfiguration().configKey(); 5733 } 5734 log("enter ObtainingIpState netId=" + Integer.toString(mLastNetworkId) 5735 + " " + key + " " 5736 + " roam=" + mAutoRoaming 5737 + " static=" + isUsingStaticIp); 5738 } 5739 5740 // Reset link Debouncing, indicating we have successfully re-connected to the AP 5741 // We might still be roaming 5742 mIsLinkDebouncing = false; 5743 5744 // Send event to CM & network change broadcast 5745 setNetworkDetailedState(DetailedState.OBTAINING_IPADDR); 5746 5747 // We must clear the config BSSID, as the wifi chipset may decide to roam 5748 // from this point on and having the BSSID specified in the network block would 5749 // cause the roam to fail and the device to disconnect. 5750 clearTargetBssid("ObtainingIpAddress"); 5751 5752 // Stop IpManager in case we're switching from DHCP to static 5753 // configuration or vice versa. 5754 // 5755 // TODO: Only ever enter this state the first time we connect to a 5756 // network, never on switching between static configuration and 5757 // DHCP. When we transition from static configuration to DHCP in 5758 // particular, we must tell ConnectivityService that we're 5759 // disconnected, because DHCP might take a long time during which 5760 // connectivity APIs such as getActiveNetworkInfo should not return 5761 // CONNECTED. 5762 stopIpManager(); 5763 5764 mIpManager.setHttpProxy(currentConfig.getHttpProxy()); 5765 if (!TextUtils.isEmpty(mTcpBufferSizes)) { 5766 mIpManager.setTcpBufferSizes(mTcpBufferSizes); 5767 } 5768 5769 if (!isUsingStaticIp) { 5770 final IpManager.ProvisioningConfiguration prov = 5771 IpManager.buildProvisioningConfiguration() 5772 .withPreDhcpAction() 5773 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5774 .build(); 5775 mIpManager.startProvisioning(prov); 5776 // Get Link layer stats so as we get fresh tx packet counters 5777 getWifiLinkLayerStats(); 5778 } else { 5779 StaticIpConfiguration config = currentConfig.getStaticIpConfiguration(); 5780 if (config.ipAddress == null) { 5781 logd("Static IP lacks address"); 5782 sendMessage(CMD_IPV4_PROVISIONING_FAILURE); 5783 } else { 5784 final IpManager.ProvisioningConfiguration prov = 5785 IpManager.buildProvisioningConfiguration() 5786 .withStaticConfiguration(config) 5787 .withApfCapabilities(mWifiNative.getApfCapabilities()) 5788 .build(); 5789 mIpManager.startProvisioning(prov); 5790 } 5791 } 5792 } 5793 5794 @Override 5795 public boolean processMessage(Message message) { 5796 logStateAndMessage(message, this); 5797 5798 switch(message.what) { 5799 case CMD_START_CONNECT: 5800 case CMD_START_ROAM: 5801 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5802 break; 5803 case WifiManager.SAVE_NETWORK: 5804 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5805 deferMessage(message); 5806 break; 5807 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5808 reportConnectionAttemptEnd( 5809 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 5810 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5811 return NOT_HANDLED; 5812 case CMD_SET_HIGH_PERF_MODE: 5813 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5814 deferMessage(message); 5815 break; 5816 /* Defer scan request since we should not switch to other channels at DHCP */ 5817 case CMD_START_SCAN: 5818 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DEFERRED; 5819 deferMessage(message); 5820 break; 5821 default: 5822 return NOT_HANDLED; 5823 } 5824 return HANDLED; 5825 } 5826 } 5827 5828 private void sendConnectedState() { 5829 // If this network was explicitly selected by the user, evaluate whether to call 5830 // explicitlySelected() so the system can treat it appropriately. 5831 WifiConfiguration config = getCurrentWifiConfiguration(); 5832 if (mWifiConfigManager.getLastSelectedNetwork() == config.networkId) { 5833 boolean prompt = 5834 mWifiConfigManager.checkConfigOverridePermission(config.lastConnectUid); 5835 if (mVerboseLoggingEnabled) { 5836 log("Network selected by UID " + config.lastConnectUid + " prompt=" + prompt); 5837 } 5838 if (prompt) { 5839 // Selected by the user via Settings or QuickSettings. If this network has Internet 5840 // access, switch to it. Otherwise, switch to it only if the user confirms that they 5841 // really want to switch, or has already confirmed and selected "Don't ask again". 5842 if (mVerboseLoggingEnabled) { 5843 log("explictlySelected acceptUnvalidated=" + config.noInternetAccessExpected); 5844 } 5845 mNetworkAgent.explicitlySelected(config.noInternetAccessExpected); 5846 } 5847 } 5848 5849 setNetworkDetailedState(DetailedState.CONNECTED); 5850 mWifiConfigManager.updateNetworkAfterConnect(mLastNetworkId); 5851 sendNetworkStateChangeBroadcast(mLastBssid); 5852 } 5853 5854 class RoamingState extends State { 5855 boolean mAssociated; 5856 @Override 5857 public void enter() { 5858 if (mVerboseLoggingEnabled) { 5859 log("RoamingState Enter" 5860 + " mScreenOn=" + mScreenOn ); 5861 } 5862 5863 // Make sure we disconnect if roaming fails 5864 roamWatchdogCount++; 5865 logd("Start Roam Watchdog " + roamWatchdogCount); 5866 sendMessageDelayed(obtainMessage(CMD_ROAM_WATCHDOG_TIMER, 5867 roamWatchdogCount, 0), ROAM_GUARD_TIMER_MSEC); 5868 mAssociated = false; 5869 } 5870 @Override 5871 public boolean processMessage(Message message) { 5872 logStateAndMessage(message, this); 5873 WifiConfiguration config; 5874 switch (message.what) { 5875 case CMD_IP_CONFIGURATION_LOST: 5876 config = getCurrentWifiConfiguration(); 5877 if (config != null) { 5878 mWifiDiagnostics.captureBugReportData( 5879 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 5880 } 5881 return NOT_HANDLED; 5882 case CMD_UNWANTED_NETWORK: 5883 if (mVerboseLoggingEnabled) { 5884 log("Roaming and CS doesnt want the network -> ignore"); 5885 } 5886 return HANDLED; 5887 case CMD_SET_OPERATIONAL_MODE: 5888 if (message.arg1 != CONNECT_MODE) { 5889 deferMessage(message); 5890 } 5891 break; 5892 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 5893 /** 5894 * If we get a SUPPLICANT_STATE_CHANGE_EVENT indicating a DISCONNECT 5895 * before NETWORK_DISCONNECTION_EVENT 5896 * And there is an associated BSSID corresponding to our target BSSID, then 5897 * we have missed the network disconnection, transition to mDisconnectedState 5898 * and handle the rest of the events there. 5899 */ 5900 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 5901 if (stateChangeResult.state == SupplicantState.DISCONNECTED 5902 || stateChangeResult.state == SupplicantState.INACTIVE 5903 || stateChangeResult.state == SupplicantState.INTERFACE_DISABLED) { 5904 if (mVerboseLoggingEnabled) { 5905 log("STATE_CHANGE_EVENT in roaming state " 5906 + stateChangeResult.toString() ); 5907 } 5908 if (stateChangeResult.BSSID != null 5909 && stateChangeResult.BSSID.equals(mTargetRoamBSSID)) { 5910 handleNetworkDisconnect(); 5911 transitionTo(mDisconnectedState); 5912 } 5913 } 5914 if (stateChangeResult.state == SupplicantState.ASSOCIATED) { 5915 // We completed the layer2 roaming part 5916 mAssociated = true; 5917 if (stateChangeResult.BSSID != null) { 5918 mTargetRoamBSSID = stateChangeResult.BSSID; 5919 } 5920 } 5921 break; 5922 case CMD_ROAM_WATCHDOG_TIMER: 5923 if (roamWatchdogCount == message.arg1) { 5924 if (mVerboseLoggingEnabled) log("roaming watchdog! -> disconnect"); 5925 mWifiMetrics.endConnectionEvent( 5926 WifiMetrics.ConnectionEvent.FAILURE_ROAM_TIMEOUT, 5927 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5928 mRoamFailCount++; 5929 handleNetworkDisconnect(); 5930 mWifiNative.disconnect(); 5931 transitionTo(mDisconnectedState); 5932 } 5933 break; 5934 case WifiMonitor.NETWORK_CONNECTION_EVENT: 5935 if (mAssociated) { 5936 if (mVerboseLoggingEnabled) { 5937 log("roaming and Network connection established"); 5938 } 5939 mLastNetworkId = lookupFrameworkNetworkId(message.arg1); 5940 mLastBssid = (String) message.obj; 5941 mWifiInfo.setBSSID(mLastBssid); 5942 mWifiInfo.setNetworkId(mLastNetworkId); 5943 int reasonCode = message.arg2; 5944 mWifiConnectivityManager.trackBssid(mLastBssid, true, reasonCode); 5945 sendNetworkStateChangeBroadcast(mLastBssid); 5946 5947 // Successful framework roam! (probably) 5948 reportConnectionAttemptEnd( 5949 WifiMetrics.ConnectionEvent.FAILURE_NONE, 5950 WifiMetricsProto.ConnectionEvent.HLF_NONE); 5951 5952 // We must clear the config BSSID, as the wifi chipset may decide to roam 5953 // from this point on and having the BSSID specified by QNS would cause 5954 // the roam to fail and the device to disconnect. 5955 // When transition from RoamingState to DisconnectingState or 5956 // DisconnectedState, the config BSSID is cleared by 5957 // handleNetworkDisconnect(). 5958 clearTargetBssid("RoamingCompleted"); 5959 5960 // We used to transition to ObtainingIpState in an 5961 // attempt to do DHCPv4 RENEWs on framework roams. 5962 // DHCP can take too long to time out, and we now rely 5963 // upon IpManager's use of IpReachabilityMonitor to 5964 // confirm our current network configuration. 5965 // 5966 // mIpManager.confirmConfiguration() is called within 5967 // the handling of SupplicantState.COMPLETED. 5968 transitionTo(mConnectedState); 5969 } else { 5970 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 5971 } 5972 break; 5973 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 5974 // Throw away but only if it corresponds to the network we're roaming to 5975 String bssid = (String) message.obj; 5976 if (true) { 5977 String target = ""; 5978 if (mTargetRoamBSSID != null) target = mTargetRoamBSSID; 5979 log("NETWORK_DISCONNECTION_EVENT in roaming state" 5980 + " BSSID=" + bssid 5981 + " target=" + target); 5982 } 5983 if (bssid != null && bssid.equals(mTargetRoamBSSID)) { 5984 handleNetworkDisconnect(); 5985 transitionTo(mDisconnectedState); 5986 } 5987 break; 5988 case WifiMonitor.SSID_TEMP_DISABLED: 5989 // Auth error while roaming 5990 int netId = lookupFrameworkNetworkId(message.arg1); 5991 logd("SSID_TEMP_DISABLED nid=" + Integer.toString(mLastNetworkId) 5992 + " id=" + netId 5993 + " isRoaming=" + isRoaming() 5994 + " roam=" + mAutoRoaming); 5995 if (netId == mLastNetworkId) { 5996 config = getCurrentWifiConfiguration(); 5997 if (config != null) { 5998 mWifiDiagnostics.captureBugReportData( 5999 WifiDiagnostics.REPORT_REASON_AUTOROAM_FAILURE); 6000 } 6001 handleNetworkDisconnect(); 6002 transitionTo(mDisconnectingState); 6003 } 6004 return NOT_HANDLED; 6005 case CMD_START_SCAN: 6006 deferMessage(message); 6007 break; 6008 default: 6009 return NOT_HANDLED; 6010 } 6011 return HANDLED; 6012 } 6013 6014 @Override 6015 public void exit() { 6016 logd("WifiStateMachine: Leaving Roaming state"); 6017 } 6018 } 6019 6020 class ConnectedState extends State { 6021 @Override 6022 public void enter() { 6023 updateDefaultRouteMacAddress(1000); 6024 if (mVerboseLoggingEnabled) { 6025 log("Enter ConnectedState " 6026 + " mScreenOn=" + mScreenOn); 6027 } 6028 6029 mWifiConnectivityManager.handleConnectionStateChanged( 6030 WifiConnectivityManager.WIFI_STATE_CONNECTED); 6031 registerConnected(); 6032 lastConnectAttemptTimestamp = 0; 6033 targetWificonfiguration = null; 6034 // Paranoia 6035 mIsLinkDebouncing = false; 6036 6037 // Not roaming anymore 6038 mAutoRoaming = false; 6039 6040 if (testNetworkDisconnect) { 6041 testNetworkDisconnectCounter++; 6042 logd("ConnectedState Enter start disconnect test " + 6043 testNetworkDisconnectCounter); 6044 sendMessageDelayed(obtainMessage(CMD_TEST_NETWORK_DISCONNECT, 6045 testNetworkDisconnectCounter, 0), 15000); 6046 } 6047 6048 mLastDriverRoamAttempt = 0; 6049 mTargetNetworkId = WifiConfiguration.INVALID_NETWORK_ID; 6050 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(true); 6051 } 6052 @Override 6053 public boolean processMessage(Message message) { 6054 WifiConfiguration config = null; 6055 logStateAndMessage(message, this); 6056 6057 switch (message.what) { 6058 case CMD_UNWANTED_NETWORK: 6059 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISCONNECT) { 6060 mWifiNative.disconnect(); 6061 transitionTo(mDisconnectingState); 6062 } else if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN || 6063 message.arg1 == NETWORK_STATUS_UNWANTED_VALIDATION_FAILED) { 6064 Log.d(TAG, (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN 6065 ? "NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN" 6066 : "NETWORK_STATUS_UNWANTED_VALIDATION_FAILED")); 6067 config = getCurrentWifiConfiguration(); 6068 if (config != null) { 6069 // Disable autojoin 6070 if (message.arg1 == NETWORK_STATUS_UNWANTED_DISABLE_AUTOJOIN) { 6071 mWifiConfigManager.setNetworkValidatedInternetAccess( 6072 config.networkId, false); 6073 mWifiConfigManager.updateNetworkSelectionStatus(config.networkId, 6074 WifiConfiguration.NetworkSelectionStatus 6075 .DISABLED_NO_INTERNET); 6076 } 6077 mWifiConfigManager.incrementNetworkNoInternetAccessReports( 6078 config.networkId); 6079 } 6080 } 6081 return HANDLED; 6082 case CMD_NETWORK_STATUS: 6083 if (message.arg1 == NetworkAgent.VALID_NETWORK) { 6084 config = getCurrentWifiConfiguration(); 6085 if (config != null) { 6086 // re-enable autojoin 6087 mWifiConfigManager.setNetworkValidatedInternetAccess( 6088 config.networkId, true); 6089 } 6090 } 6091 return HANDLED; 6092 case CMD_ACCEPT_UNVALIDATED: 6093 boolean accept = (message.arg1 != 0); 6094 mWifiConfigManager.setNetworkNoInternetAccessExpected(mLastNetworkId, accept); 6095 return HANDLED; 6096 case CMD_TEST_NETWORK_DISCONNECT: 6097 // Force a disconnect 6098 if (message.arg1 == testNetworkDisconnectCounter) { 6099 mWifiNative.disconnect(); 6100 } 6101 break; 6102 case CMD_ASSOCIATED_BSSID: 6103 // ASSOCIATING to a new BSSID while already connected, indicates 6104 // that driver is roaming 6105 mLastDriverRoamAttempt = mClock.getWallClockMillis(); 6106 return NOT_HANDLED; 6107 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6108 long lastRoam = 0; 6109 reportConnectionAttemptEnd( 6110 WifiMetrics.ConnectionEvent.FAILURE_NETWORK_DISCONNECTION, 6111 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6112 if (mLastDriverRoamAttempt != 0) { 6113 // Calculate time since last driver roam attempt 6114 lastRoam = mClock.getWallClockMillis() - mLastDriverRoamAttempt; 6115 mLastDriverRoamAttempt = 0; 6116 } 6117 if (unexpectedDisconnectedReason(message.arg2)) { 6118 mWifiDiagnostics.captureBugReportData( 6119 WifiDiagnostics.REPORT_REASON_UNEXPECTED_DISCONNECT); 6120 } 6121 config = getCurrentWifiConfiguration(); 6122 if (mEnableLinkDebouncing 6123 && mScreenOn 6124 && !isLinkDebouncing() 6125 && config != null 6126 && config.getNetworkSelectionStatus().isNetworkEnabled() 6127 && config.networkId != mWifiConfigManager.getLastSelectedNetwork() 6128 && (message.arg2 != 3 /* reason cannot be 3, i.e. locally generated */ 6129 || (lastRoam > 0 && lastRoam < 2000) /* unless driver is roaming */) 6130 && ((ScanResult.is24GHz(mWifiInfo.getFrequency()) 6131 && mWifiInfo.getRssi() > 6132 mThresholdQualifiedRssi5) 6133 || (ScanResult.is5GHz(mWifiInfo.getFrequency()) 6134 && mWifiInfo.getRssi() > 6135 mThresholdQualifiedRssi5))) { 6136 // Start de-bouncing the L2 disconnection: 6137 // this L2 disconnection might be spurious. 6138 // Hence we allow 4 seconds for the state machine to try 6139 // to reconnect, go thru the 6140 // roaming cycle and enter Obtaining IP address 6141 // before signalling the disconnect to ConnectivityService and L3 6142 startScanForConfiguration(getCurrentWifiConfiguration()); 6143 mIsLinkDebouncing = true; 6144 6145 sendMessageDelayed(obtainMessage(CMD_DELAYED_NETWORK_DISCONNECT, 6146 0, mLastNetworkId), LINK_FLAPPING_DEBOUNCE_MSEC); 6147 if (mVerboseLoggingEnabled) { 6148 log("NETWORK_DISCONNECTION_EVENT in connected state" 6149 + " BSSID=" + mWifiInfo.getBSSID() 6150 + " RSSI=" + mWifiInfo.getRssi() 6151 + " freq=" + mWifiInfo.getFrequency() 6152 + " reason=" + message.arg2 6153 + " -> debounce"); 6154 } 6155 return HANDLED; 6156 } else { 6157 if (mVerboseLoggingEnabled) { 6158 log("NETWORK_DISCONNECTION_EVENT in connected state" 6159 + " BSSID=" + mWifiInfo.getBSSID() 6160 + " RSSI=" + mWifiInfo.getRssi() 6161 + " freq=" + mWifiInfo.getFrequency() 6162 + " was debouncing=" + isLinkDebouncing() 6163 + " reason=" + message.arg2 6164 + " Network Selection Status=" + (config == null ? "Unavailable" 6165 : config.getNetworkSelectionStatus().getNetworkStatusString())); 6166 } 6167 } 6168 break; 6169 case CMD_START_ROAM: 6170 // Clear the driver roam indication since we are attempting a framework roam 6171 mLastDriverRoamAttempt = 0; 6172 6173 /* Connect command coming from auto-join */ 6174 int netId = message.arg1; 6175 ScanResult candidate = (ScanResult)message.obj; 6176 String bssid = SUPPLICANT_BSSID_ANY; 6177 if (candidate != null) { 6178 bssid = candidate.BSSID; 6179 } 6180 config = mWifiConfigManager.getConfiguredNetworkWithPassword(netId); 6181 if (config == null) { 6182 loge("CMD_START_ROAM and no config, bail out..."); 6183 break; 6184 } 6185 6186 setTargetBssid(config, bssid); 6187 mTargetNetworkId = netId; 6188 6189 logd("CMD_START_ROAM sup state " 6190 + mSupplicantStateTracker.getSupplicantStateName() 6191 + " my state " + getCurrentState().getName() 6192 + " nid=" + Integer.toString(netId) 6193 + " config " + config.configKey() 6194 + " targetRoamBSSID " + mTargetRoamBSSID); 6195 6196 reportConnectionAttemptStart(config, mTargetRoamBSSID, 6197 WifiMetricsProto.ConnectionEvent.ROAM_ENTERPRISE); 6198 if (mWifiNative.roamToNetwork(config)) { 6199 lastConnectAttemptTimestamp = mClock.getWallClockMillis(); 6200 targetWificonfiguration = config; 6201 mAutoRoaming = true; 6202 transitionTo(mRoamingState); 6203 } else { 6204 loge("CMD_START_ROAM Failed to start roaming to network " + config); 6205 reportConnectionAttemptEnd( 6206 WifiMetrics.ConnectionEvent.FAILURE_CONNECT_NETWORK_FAILED, 6207 WifiMetricsProto.ConnectionEvent.HLF_NONE); 6208 replyToMessage(message, WifiManager.CONNECT_NETWORK_FAILED, 6209 WifiManager.ERROR); 6210 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6211 break; 6212 } 6213 break; 6214 case CMD_START_IP_PACKET_OFFLOAD: { 6215 int slot = message.arg1; 6216 int intervalSeconds = message.arg2; 6217 KeepalivePacketData pkt = (KeepalivePacketData) message.obj; 6218 byte[] dstMac; 6219 try { 6220 InetAddress gateway = RouteInfo.selectBestRoute( 6221 mLinkProperties.getRoutes(), pkt.dstAddress).getGateway(); 6222 String dstMacStr = macAddressFromRoute(gateway.getHostAddress()); 6223 dstMac = NativeUtil.macAddressToByteArray(dstMacStr); 6224 } catch (NullPointerException | IllegalArgumentException e) { 6225 loge("Can't find MAC address for next hop to " + pkt.dstAddress); 6226 mNetworkAgent.onPacketKeepaliveEvent(slot, 6227 ConnectivityManager.PacketKeepalive.ERROR_INVALID_IP_ADDRESS); 6228 break; 6229 } 6230 pkt.dstMac = dstMac; 6231 int result = startWifiIPPacketOffload(slot, pkt, intervalSeconds); 6232 mNetworkAgent.onPacketKeepaliveEvent(slot, result); 6233 break; 6234 } 6235 default: 6236 return NOT_HANDLED; 6237 } 6238 return HANDLED; 6239 } 6240 6241 @Override 6242 public void exit() { 6243 logd("WifiStateMachine: Leaving Connected state"); 6244 mWifiConnectivityManager.handleConnectionStateChanged( 6245 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6246 6247 mLastDriverRoamAttempt = 0; 6248 mWifiInjector.getWifiLastResortWatchdog().connectedStateTransition(false); 6249 } 6250 } 6251 6252 class DisconnectingState extends State { 6253 6254 @Override 6255 public void enter() { 6256 6257 if (mVerboseLoggingEnabled) { 6258 logd(" Enter DisconnectingState State screenOn=" + mScreenOn); 6259 } 6260 6261 // Make sure we disconnect: we enter this state prior to connecting to a new 6262 // network, waiting for either a DISCONNECT event or a SUPPLICANT_STATE_CHANGE 6263 // event which in this case will be indicating that supplicant started to associate. 6264 // In some cases supplicant doesn't ignore the connect requests (it might not 6265 // find the target SSID in its cache), 6266 // Therefore we end up stuck that state, hence the need for the watchdog. 6267 disconnectingWatchdogCount++; 6268 logd("Start Disconnecting Watchdog " + disconnectingWatchdogCount); 6269 sendMessageDelayed(obtainMessage(CMD_DISCONNECTING_WATCHDOG_TIMER, 6270 disconnectingWatchdogCount, 0), DISCONNECTING_GUARD_TIMER_MSEC); 6271 } 6272 6273 @Override 6274 public boolean processMessage(Message message) { 6275 logStateAndMessage(message, this); 6276 switch (message.what) { 6277 case CMD_SET_OPERATIONAL_MODE: 6278 if (message.arg1 != CONNECT_MODE) { 6279 deferMessage(message); 6280 } 6281 break; 6282 case CMD_START_SCAN: 6283 deferMessage(message); 6284 return HANDLED; 6285 case CMD_DISCONNECT: 6286 if (mVerboseLoggingEnabled) log("Ignore CMD_DISCONNECT when already disconnecting."); 6287 break; 6288 case CMD_DISCONNECTING_WATCHDOG_TIMER: 6289 if (disconnectingWatchdogCount == message.arg1) { 6290 if (mVerboseLoggingEnabled) log("disconnecting watchdog! -> disconnect"); 6291 handleNetworkDisconnect(); 6292 transitionTo(mDisconnectedState); 6293 } 6294 break; 6295 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6296 /** 6297 * If we get a SUPPLICANT_STATE_CHANGE_EVENT before NETWORK_DISCONNECTION_EVENT 6298 * we have missed the network disconnection, transition to mDisconnectedState 6299 * and handle the rest of the events there 6300 */ 6301 deferMessage(message); 6302 handleNetworkDisconnect(); 6303 transitionTo(mDisconnectedState); 6304 break; 6305 default: 6306 return NOT_HANDLED; 6307 } 6308 return HANDLED; 6309 } 6310 } 6311 6312 class DisconnectedState extends State { 6313 @Override 6314 public void enter() { 6315 // We dont scan frequently if this is a temporary disconnect 6316 // due to p2p 6317 if (mTemporarilyDisconnectWifi) { 6318 p2pSendMessage(WifiP2pServiceImpl.DISCONNECT_WIFI_RESPONSE); 6319 return; 6320 } 6321 6322 if (mVerboseLoggingEnabled) { 6323 logd(" Enter DisconnectedState screenOn=" + mScreenOn); 6324 } 6325 6326 /** clear the roaming state, if we were roaming, we failed */ 6327 mAutoRoaming = false; 6328 6329 mWifiConnectivityManager.handleConnectionStateChanged( 6330 WifiConnectivityManager.WIFI_STATE_DISCONNECTED); 6331 6332 /** 6333 * If we have no networks saved, the supplicant stops doing the periodic scan. 6334 * The scans are useful to notify the user of the presence of an open network. 6335 * Note that these are not wake up scans. 6336 */ 6337 if (mNoNetworksPeriodicScan != 0 && !mP2pConnected.get() 6338 && mWifiConfigManager.getSavedNetworks().size() == 0) { 6339 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6340 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6341 } 6342 6343 mDisconnectedTimeStamp = mClock.getWallClockMillis(); 6344 } 6345 @Override 6346 public boolean processMessage(Message message) { 6347 boolean ret = HANDLED; 6348 6349 logStateAndMessage(message, this); 6350 6351 switch (message.what) { 6352 case CMD_NO_NETWORKS_PERIODIC_SCAN: 6353 if (mP2pConnected.get()) break; 6354 if (mNoNetworksPeriodicScan != 0 && message.arg1 == mPeriodicScanToken && 6355 mWifiConfigManager.getSavedNetworks().size() == 0) { 6356 startScan(UNKNOWN_SCAN_SOURCE, -1, null, WIFI_WORK_SOURCE); 6357 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6358 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6359 } 6360 break; 6361 case WifiManager.FORGET_NETWORK: 6362 case CMD_REMOVE_NETWORK: 6363 case CMD_REMOVE_APP_CONFIGURATIONS: 6364 case CMD_REMOVE_USER_CONFIGURATIONS: 6365 // Set up a delayed message here. After the forget/remove is handled 6366 // the handled delayed message will determine if there is a need to 6367 // scan and continue 6368 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6369 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6370 ret = NOT_HANDLED; 6371 break; 6372 case CMD_SET_OPERATIONAL_MODE: 6373 if (message.arg1 != CONNECT_MODE) { 6374 mOperationalMode = message.arg1; 6375 if (mOperationalMode == DISABLED_MODE) { 6376 transitionTo(mSupplicantStoppingState); 6377 } else if (mOperationalMode == SCAN_ONLY_WITH_WIFI_OFF_MODE) { 6378 p2pSendMessage(CMD_DISABLE_P2P_REQ); 6379 setWifiState(WIFI_STATE_DISABLED); 6380 transitionTo(mScanModeState); 6381 } else if (mOperationalMode == SCAN_ONLY_MODE) { 6382 transitionTo(mScanModeState); 6383 } 6384 } 6385 break; 6386 case CMD_DISCONNECT: 6387 mWifiNative.disconnect(); 6388 break; 6389 /* Ignore network disconnect */ 6390 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6391 // Interpret this as an L2 connection failure 6392 break; 6393 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6394 StateChangeResult stateChangeResult = (StateChangeResult) message.obj; 6395 if (mVerboseLoggingEnabled) { 6396 logd("SUPPLICANT_STATE_CHANGE_EVENT state=" + stateChangeResult.state + 6397 " -> state= " + WifiInfo.getDetailedStateOf(stateChangeResult.state) 6398 + " debouncing=" + isLinkDebouncing()); 6399 } 6400 setNetworkDetailedState(WifiInfo.getDetailedStateOf(stateChangeResult.state)); 6401 /* ConnectModeState does the rest of the handling */ 6402 ret = NOT_HANDLED; 6403 break; 6404 case CMD_START_SCAN: 6405 if (!checkOrDeferScanAllowed(message)) { 6406 // The scan request was rescheduled 6407 messageHandlingStatus = MESSAGE_HANDLING_STATUS_REFUSED; 6408 return HANDLED; 6409 } 6410 6411 ret = NOT_HANDLED; 6412 break; 6413 case WifiP2pServiceImpl.P2P_CONNECTION_CHANGED: 6414 NetworkInfo info = (NetworkInfo) message.obj; 6415 mP2pConnected.set(info.isConnected()); 6416 if (mP2pConnected.get()) { 6417 int defaultInterval = mContext.getResources().getInteger( 6418 R.integer.config_wifi_scan_interval_p2p_connected); 6419 long scanIntervalMs = mFacade.getLongSetting(mContext, 6420 Settings.Global.WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS, 6421 defaultInterval); 6422 mWifiNative.setScanInterval((int) scanIntervalMs/1000); 6423 } else if (mWifiConfigManager.getSavedNetworks().size() == 0) { 6424 if (mVerboseLoggingEnabled) log("Turn on scanning after p2p disconnected"); 6425 sendMessageDelayed(obtainMessage(CMD_NO_NETWORKS_PERIODIC_SCAN, 6426 ++mPeriodicScanToken, 0), mNoNetworksPeriodicScan); 6427 } 6428 break; 6429 case CMD_RECONNECT: 6430 case CMD_REASSOCIATE: 6431 if (mTemporarilyDisconnectWifi) { 6432 // Drop a third party reconnect/reassociate if STA is 6433 // temporarily disconnected for p2p 6434 break; 6435 } else { 6436 // ConnectModeState handles it 6437 ret = NOT_HANDLED; 6438 } 6439 break; 6440 case CMD_SCREEN_STATE_CHANGED: 6441 handleScreenStateChanged(message.arg1 != 0); 6442 break; 6443 default: 6444 ret = NOT_HANDLED; 6445 } 6446 return ret; 6447 } 6448 6449 @Override 6450 public void exit() { 6451 mWifiConnectivityManager.handleConnectionStateChanged( 6452 WifiConnectivityManager.WIFI_STATE_TRANSITIONING); 6453 } 6454 } 6455 6456 class WpsRunningState extends State { 6457 // Tracks the source to provide a reply 6458 private Message mSourceMessage; 6459 @Override 6460 public void enter() { 6461 mSourceMessage = Message.obtain(getCurrentMessage()); 6462 } 6463 @Override 6464 public boolean processMessage(Message message) { 6465 logStateAndMessage(message, this); 6466 6467 switch (message.what) { 6468 case WifiMonitor.WPS_SUCCESS_EVENT: 6469 // Ignore intermediate success, wait for full connection 6470 break; 6471 case WifiMonitor.NETWORK_CONNECTION_EVENT: 6472 replyToMessage(mSourceMessage, WifiManager.WPS_COMPLETED); 6473 mSourceMessage.recycle(); 6474 mSourceMessage = null; 6475 deferMessage(message); 6476 transitionTo(mDisconnectedState); 6477 break; 6478 case WifiMonitor.WPS_OVERLAP_EVENT: 6479 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6480 WifiManager.WPS_OVERLAP_ERROR); 6481 mSourceMessage.recycle(); 6482 mSourceMessage = null; 6483 transitionTo(mDisconnectedState); 6484 break; 6485 case WifiMonitor.WPS_FAIL_EVENT: 6486 // Arg1 has the reason for the failure 6487 if ((message.arg1 != WifiManager.ERROR) || (message.arg2 != 0)) { 6488 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, message.arg1); 6489 mSourceMessage.recycle(); 6490 mSourceMessage = null; 6491 transitionTo(mDisconnectedState); 6492 } else { 6493 if (mVerboseLoggingEnabled) { 6494 log("Ignore unspecified fail event during WPS connection"); 6495 } 6496 } 6497 break; 6498 case WifiMonitor.WPS_TIMEOUT_EVENT: 6499 replyToMessage(mSourceMessage, WifiManager.WPS_FAILED, 6500 WifiManager.WPS_TIMED_OUT); 6501 mSourceMessage.recycle(); 6502 mSourceMessage = null; 6503 transitionTo(mDisconnectedState); 6504 break; 6505 case WifiManager.START_WPS: 6506 replyToMessage(message, WifiManager.WPS_FAILED, WifiManager.IN_PROGRESS); 6507 break; 6508 case WifiManager.CANCEL_WPS: 6509 if (mWifiNative.cancelWps()) { 6510 replyToMessage(message, WifiManager.CANCEL_WPS_SUCCEDED); 6511 } else { 6512 replyToMessage(message, WifiManager.CANCEL_WPS_FAILED, WifiManager.ERROR); 6513 } 6514 transitionTo(mDisconnectedState); 6515 break; 6516 /** 6517 * Defer all commands that can cause connections to a different network 6518 * or put the state machine out of connect mode 6519 */ 6520 case CMD_SET_OPERATIONAL_MODE: 6521 case WifiManager.CONNECT_NETWORK: 6522 case CMD_ENABLE_NETWORK: 6523 case CMD_RECONNECT: 6524 case CMD_REASSOCIATE: 6525 deferMessage(message); 6526 break; 6527 case CMD_START_CONNECT: 6528 case CMD_START_ROAM: 6529 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6530 return HANDLED; 6531 case CMD_START_SCAN: 6532 messageHandlingStatus = MESSAGE_HANDLING_STATUS_DISCARD; 6533 return HANDLED; 6534 case WifiMonitor.NETWORK_DISCONNECTION_EVENT: 6535 if (mVerboseLoggingEnabled) log("Network connection lost"); 6536 handleNetworkDisconnect(); 6537 break; 6538 case WifiMonitor.ASSOCIATION_REJECTION_EVENT: 6539 if (mVerboseLoggingEnabled) { 6540 log("Ignore Assoc reject event during WPS Connection"); 6541 } 6542 break; 6543 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT: 6544 // Disregard auth failure events during WPS connection. The 6545 // EAP sequence is retried several times, and there might be 6546 // failures (especially for wps pin). We will get a WPS_XXX 6547 // event at the end of the sequence anyway. 6548 if (mVerboseLoggingEnabled) log("Ignore auth failure during WPS connection"); 6549 break; 6550 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT: 6551 // Throw away supplicant state changes when WPS is running. 6552 // We will start getting supplicant state changes once we get 6553 // a WPS success or failure 6554 break; 6555 default: 6556 return NOT_HANDLED; 6557 } 6558 return HANDLED; 6559 } 6560 6561 @Override 6562 public void exit() { 6563 mWifiConfigManager.loadFromStore(); 6564 } 6565 } 6566 6567 class SoftApState extends State { 6568 private SoftApManager mSoftApManager; 6569 6570 private class SoftApListener implements SoftApManager.Listener { 6571 @Override 6572 public void onStateChanged(int state, int reason) { 6573 if (state == WIFI_AP_STATE_DISABLED) { 6574 sendMessage(CMD_AP_STOPPED); 6575 } else if (state == WIFI_AP_STATE_FAILED) { 6576 sendMessage(CMD_START_AP_FAILURE); 6577 } 6578 6579 setWifiApState(state, reason); 6580 } 6581 } 6582 6583 @Override 6584 public void enter() { 6585 final Message message = getCurrentMessage(); 6586 if (message.what != CMD_START_AP) { 6587 throw new RuntimeException("Illegal transition to SoftApState: " + message); 6588 } 6589 6590 IApInterface apInterface = mWifiNative.setupDriverForSoftApMode(); 6591 if (apInterface == null) { 6592 setWifiApState(WIFI_AP_STATE_FAILED, 6593 WifiManager.SAP_START_FAILURE_GENERAL); 6594 /** 6595 * Transition to InitialState to reset the 6596 * driver/HAL back to the initial state. 6597 */ 6598 transitionTo(mInitialState); 6599 return; 6600 } 6601 6602 WifiConfiguration config = (WifiConfiguration) message.obj; 6603 6604 checkAndSetConnectivityInstance(); 6605 mSoftApManager = mWifiInjector.makeSoftApManager(mNwService, 6606 new SoftApListener(), 6607 apInterface, 6608 config); 6609 mSoftApManager.start(); 6610 } 6611 6612 @Override 6613 public void exit() { 6614 mSoftApManager = null; 6615 } 6616 6617 @Override 6618 public boolean processMessage(Message message) { 6619 logStateAndMessage(message, this); 6620 6621 switch(message.what) { 6622 case CMD_START_AP: 6623 /* Ignore start command when it is starting/started. */ 6624 break; 6625 case CMD_STOP_AP: 6626 mSoftApManager.stop(); 6627 break; 6628 case CMD_START_AP_FAILURE: 6629 transitionTo(mInitialState); 6630 break; 6631 case CMD_AP_STOPPED: 6632 transitionTo(mInitialState); 6633 break; 6634 default: 6635 return NOT_HANDLED; 6636 } 6637 return HANDLED; 6638 } 6639 } 6640 6641 /** 6642 * State machine initiated requests can have replyTo set to null indicating 6643 * there are no recepients, we ignore those reply actions. 6644 */ 6645 private void replyToMessage(Message msg, int what) { 6646 if (msg.replyTo == null) return; 6647 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6648 mReplyChannel.replyToMessage(msg, dstMsg); 6649 } 6650 6651 private void replyToMessage(Message msg, int what, int arg1) { 6652 if (msg.replyTo == null) return; 6653 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6654 dstMsg.arg1 = arg1; 6655 mReplyChannel.replyToMessage(msg, dstMsg); 6656 } 6657 6658 private void replyToMessage(Message msg, int what, Object obj) { 6659 if (msg.replyTo == null) return; 6660 Message dstMsg = obtainMessageWithWhatAndArg2(msg, what); 6661 dstMsg.obj = obj; 6662 mReplyChannel.replyToMessage(msg, dstMsg); 6663 } 6664 6665 /** 6666 * arg2 on the source message has a unique id that needs to be retained in replies 6667 * to match the request 6668 * <p>see WifiManager for details 6669 */ 6670 private Message obtainMessageWithWhatAndArg2(Message srcMsg, int what) { 6671 Message msg = Message.obtain(); 6672 msg.what = what; 6673 msg.arg2 = srcMsg.arg2; 6674 return msg; 6675 } 6676 6677 /** 6678 * Notify interested parties if a wifi config has been changed. 6679 * 6680 * @param wifiCredentialEventType WIFI_CREDENTIAL_SAVED or WIFI_CREDENTIAL_FORGOT 6681 * @param config Must have a WifiConfiguration object to succeed 6682 * TODO: b/35258354 investigate if this can be removed. Is the broadcast sent by 6683 * WifiConfigManager sufficient? 6684 */ 6685 private void broadcastWifiCredentialChanged(int wifiCredentialEventType, 6686 WifiConfiguration config) { 6687 if (config != null && config.preSharedKey != null) { 6688 Intent intent = new Intent(WifiManager.WIFI_CREDENTIAL_CHANGED_ACTION); 6689 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_SSID, config.SSID); 6690 intent.putExtra(WifiManager.EXTRA_WIFI_CREDENTIAL_EVENT_TYPE, 6691 wifiCredentialEventType); 6692 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT, 6693 android.Manifest.permission.RECEIVE_WIFI_CREDENTIAL_CHANGE); 6694 } 6695 } 6696 6697 void handleGsmAuthRequest(SimAuthRequestData requestData) { 6698 if (targetWificonfiguration == null 6699 || targetWificonfiguration.networkId 6700 == lookupFrameworkNetworkId(requestData.networkId)) { 6701 logd("id matches targetWifiConfiguration"); 6702 } else { 6703 logd("id does not match targetWifiConfiguration"); 6704 return; 6705 } 6706 6707 String response = 6708 TelephonyUtil.getGsmSimAuthResponse(requestData.data, getTelephonyManager()); 6709 if (response == null) { 6710 mWifiNative.simAuthFailedResponse(requestData.networkId); 6711 } else { 6712 logv("Supplicant Response -" + response); 6713 mWifiNative.simAuthResponse(requestData.networkId, "GSM-AUTH", response); 6714 } 6715 } 6716 6717 void handle3GAuthRequest(SimAuthRequestData requestData) { 6718 if (targetWificonfiguration == null 6719 || targetWificonfiguration.networkId 6720 == lookupFrameworkNetworkId(requestData.networkId)) { 6721 logd("id matches targetWifiConfiguration"); 6722 } else { 6723 logd("id does not match targetWifiConfiguration"); 6724 return; 6725 } 6726 6727 SimAuthResponseData response = 6728 TelephonyUtil.get3GAuthResponse(requestData, getTelephonyManager()); 6729 if (response != null) { 6730 mWifiNative.simAuthResponse(requestData.networkId, response.type, response.response); 6731 } else { 6732 mWifiNative.umtsAuthFailedResponse(requestData.networkId); 6733 } 6734 } 6735 6736 /** 6737 * Automatically connect to the network specified 6738 * 6739 * @param networkId ID of the network to connect to 6740 * @param bssid BSSID of the network 6741 */ 6742 public void startConnectToNetwork(int networkId, String bssid) { 6743 synchronized (mWifiReqCountLock) { 6744 if (hasConnectionRequests()) { 6745 sendMessage(CMD_START_CONNECT, networkId, 0, bssid); 6746 } 6747 } 6748 } 6749 6750 /** 6751 * Automatically roam to the network specified 6752 * 6753 * @param networkId ID of the network to roam to 6754 * @param scanResult scan result which identifies the network to roam to 6755 */ 6756 public void startRoamToNetwork(int networkId, ScanResult scanResult) { 6757 sendMessage(CMD_START_ROAM, networkId, 0, scanResult); 6758 } 6759 6760 /** 6761 * Dynamically turn on/off WifiConnectivityManager 6762 * 6763 * @param enabled true-enable; false-disable 6764 */ 6765 public void enableWifiConnectivityManager(boolean enabled) { 6766 sendMessage(CMD_ENABLE_WIFI_CONNECTIVITY_MANAGER, enabled ? 1 : 0); 6767 } 6768 6769 /** 6770 * @param reason reason code from supplicant on network disconnected event 6771 * @return true if this is a suspicious disconnect 6772 */ 6773 static boolean unexpectedDisconnectedReason(int reason) { 6774 return reason == 2 // PREV_AUTH_NOT_VALID 6775 || reason == 6 // CLASS2_FRAME_FROM_NONAUTH_STA 6776 || reason == 7 // FRAME_FROM_NONASSOC_STA 6777 || reason == 8 // STA_HAS_LEFT 6778 || reason == 9 // STA_REQ_ASSOC_WITHOUT_AUTH 6779 || reason == 14 // MICHAEL_MIC_FAILURE 6780 || reason == 15 // 4WAY_HANDSHAKE_TIMEOUT 6781 || reason == 16 // GROUP_KEY_UPDATE_TIMEOUT 6782 || reason == 18 // GROUP_CIPHER_NOT_VALID 6783 || reason == 19 // PAIRWISE_CIPHER_NOT_VALID 6784 || reason == 23 // IEEE_802_1X_AUTH_FAILED 6785 || reason == 34; // DISASSOC_LOW_ACK 6786 } 6787 6788 /** 6789 * Update WifiMetrics before dumping 6790 */ 6791 void updateWifiMetrics() { 6792 int numSavedNetworks = mWifiConfigManager.getConfiguredNetworks().size(); 6793 int numOpenNetworks = 0; 6794 int numPersonalNetworks = 0; 6795 int numEnterpriseNetworks = 0; 6796 int numNetworksAddedByUser = 0; 6797 int numNetworksAddedByApps = 0; 6798 int numHiddenNetworks = 0; 6799 int numPasspoint = 0; 6800 for (WifiConfiguration config : mWifiConfigManager.getSavedNetworks()) { 6801 if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE)) { 6802 numOpenNetworks++; 6803 } else if (config.isEnterprise()) { 6804 numEnterpriseNetworks++; 6805 } else { 6806 numPersonalNetworks++; 6807 } 6808 if (config.selfAdded) { 6809 numNetworksAddedByUser++; 6810 } else { 6811 numNetworksAddedByApps++; 6812 } 6813 if (config.hiddenSSID) { 6814 numHiddenNetworks++; 6815 } 6816 if (config.isPasspoint()) { 6817 numPasspoint++; 6818 } 6819 } 6820 mWifiMetrics.setNumSavedNetworks(numSavedNetworks); 6821 mWifiMetrics.setNumOpenNetworks(numOpenNetworks); 6822 mWifiMetrics.setNumPersonalNetworks(numPersonalNetworks); 6823 mWifiMetrics.setNumEnterpriseNetworks(numEnterpriseNetworks); 6824 mWifiMetrics.setNumNetworksAddedByUser(numNetworksAddedByUser); 6825 mWifiMetrics.setNumNetworksAddedByApps(numNetworksAddedByApps); 6826 mWifiMetrics.setNumHiddenNetworks(numHiddenNetworks); 6827 mWifiMetrics.setNumPasspointNetworks(numPasspoint); 6828 } 6829 6830 /** 6831 * Private method to handle calling WifiConfigManager to forget/remove network configs and reply 6832 * to the message from the sender of the outcome. 6833 * 6834 * The current implementation requires that forget and remove be handled in different ways 6835 * (responses are handled differently). In the interests of organization, the handling is all 6836 * now in this helper method. TODO: b/35257965 is filed to track the possibility of merging 6837 * the two call paths. 6838 */ 6839 private boolean deleteNetworkConfigAndSendReply(Message message, boolean calledFromForget) { 6840 boolean success = mWifiConfigManager.removeNetwork(message.arg1, message.sendingUid); 6841 if (!success) { 6842 loge("Failed to remove network"); 6843 } 6844 6845 if (calledFromForget) { 6846 if (success) { 6847 replyToMessage(message, WifiManager.FORGET_NETWORK_SUCCEEDED); 6848 broadcastWifiCredentialChanged(WifiManager.WIFI_CREDENTIAL_FORGOT, 6849 (WifiConfiguration) message.obj); 6850 return true; 6851 } 6852 replyToMessage(message, WifiManager.FORGET_NETWORK_FAILED, WifiManager.ERROR); 6853 return false; 6854 } else { 6855 // Remaining calls are from the removeNetwork path 6856 if (success) { 6857 replyToMessage(message, message.what, SUCCESS); 6858 return true; 6859 } 6860 messageHandlingStatus = MESSAGE_HANDLING_STATUS_FAIL; 6861 replyToMessage(message, message.what, FAILURE); 6862 return false; 6863 } 6864 } 6865 6866 private static String getLinkPropertiesSummary(LinkProperties lp) { 6867 List<String> attributes = new ArrayList<>(6); 6868 if (lp.hasIPv4Address()) { 6869 attributes.add("v4"); 6870 } 6871 if (lp.hasIPv4DefaultRoute()) { 6872 attributes.add("v4r"); 6873 } 6874 if (lp.hasIPv4DnsServer()) { 6875 attributes.add("v4dns"); 6876 } 6877 if (lp.hasGlobalIPv6Address()) { 6878 attributes.add("v6"); 6879 } 6880 if (lp.hasIPv6DefaultRoute()) { 6881 attributes.add("v6r"); 6882 } 6883 if (lp.hasIPv6DnsServer()) { 6884 attributes.add("v6dns"); 6885 } 6886 6887 return TextUtils.join(" ", attributes); 6888 } 6889 6890 /** 6891 * Gets the SSID from the WifiConfiguration pointed at by 'mTargetNetworkId' 6892 * This should match the network config framework is attempting to connect to. 6893 */ 6894 private String getTargetSsid() { 6895 WifiConfiguration currentConfig = mWifiConfigManager.getConfiguredNetwork(mTargetNetworkId); 6896 if (currentConfig != null) { 6897 return currentConfig.SSID; 6898 } 6899 return null; 6900 } 6901 6902 private void p2pSendMessage(int what) { 6903 if (mWifiP2pChannel != null) { 6904 mWifiP2pChannel.sendMessage(what); 6905 } 6906 } 6907 6908 private void p2pSendMessage(int what, int arg1) { 6909 if (mWifiP2pChannel != null) { 6910 mWifiP2pChannel.sendMessage(what, arg1); 6911 } 6912 } 6913 6914 /** 6915 * Check if there is any connection request for WiFi network. 6916 * Note, caller of this helper function must acquire mWifiReqCountLock. 6917 */ 6918 private boolean hasConnectionRequests() { 6919 return mConnectionReqCount > 0 || mUntrustedReqCount > 0; 6920 } 6921 6922 /** 6923 * Returns whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6924 */ 6925 public boolean getIpReachabilityDisconnectEnabled() { 6926 return mIpReachabilityDisconnectEnabled; 6927 } 6928 6929 /** 6930 * Sets whether CMD_IP_REACHABILITY_LOST events should trigger disconnects. 6931 */ 6932 public void setIpReachabilityDisconnectEnabled(boolean enabled) { 6933 mIpReachabilityDisconnectEnabled = enabled; 6934 } 6935 6936 /** 6937 * Sends a message to initialize the WifiStateMachine. 6938 * 6939 * @return true if succeeded, false otherwise. 6940 */ 6941 public boolean syncInitialize(AsyncChannel channel) { 6942 Message resultMsg = channel.sendMessageSynchronously(CMD_INITIALIZE); 6943 boolean result = (resultMsg.arg1 != FAILURE); 6944 resultMsg.recycle(); 6945 return result; 6946 } 6947} 6948