BroadcastQueue.java revision 5869d1c5b67b8e8ee22696318ffb31316dcbb089
1/* 2 * Copyright (C) 2012 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.am; 18 19import java.io.FileDescriptor; 20import java.io.PrintWriter; 21import java.text.SimpleDateFormat; 22import java.util.ArrayList; 23import java.util.Date; 24import java.util.Set; 25 26import android.app.ActivityManager; 27import android.app.AppGlobals; 28import android.app.AppOpsManager; 29import android.app.BroadcastOptions; 30import android.app.PendingIntent; 31import android.content.ComponentName; 32import android.content.IIntentReceiver; 33import android.content.IIntentSender; 34import android.content.Intent; 35import android.content.IntentSender; 36import android.content.pm.ActivityInfo; 37import android.content.pm.PackageManager; 38import android.content.pm.ResolveInfo; 39import android.os.Build; 40import android.os.Bundle; 41import android.os.DeadObjectException; 42import android.os.Handler; 43import android.os.IBinder; 44import android.os.Looper; 45import android.os.Message; 46import android.os.Process; 47import android.os.RemoteException; 48import android.os.SystemClock; 49import android.os.UserHandle; 50import android.util.EventLog; 51import android.util.Slog; 52import android.util.TimeUtils; 53import com.android.server.DeviceIdleController; 54 55import static com.android.server.am.ActivityManagerDebugConfig.*; 56 57/** 58 * BROADCASTS 59 * 60 * We keep two broadcast queues and associated bookkeeping, one for those at 61 * foreground priority, and one for normal (background-priority) broadcasts. 62 */ 63public final class BroadcastQueue { 64 private static final String TAG = "BroadcastQueue"; 65 private static final String TAG_MU = TAG + POSTFIX_MU; 66 private static final String TAG_BROADCAST = TAG + POSTFIX_BROADCAST; 67 68 static final int MAX_BROADCAST_HISTORY = ActivityManager.isLowRamDeviceStatic() ? 10 : 50; 69 static final int MAX_BROADCAST_SUMMARY_HISTORY 70 = ActivityManager.isLowRamDeviceStatic() ? 25 : 300; 71 72 final ActivityManagerService mService; 73 74 /** 75 * Recognizable moniker for this queue 76 */ 77 final String mQueueName; 78 79 /** 80 * Timeout period for this queue's broadcasts 81 */ 82 final long mTimeoutPeriod; 83 84 /** 85 * If true, we can delay broadcasts while waiting services to finish in the previous 86 * receiver's process. 87 */ 88 final boolean mDelayBehindServices; 89 90 /** 91 * Lists of all active broadcasts that are to be executed immediately 92 * (without waiting for another broadcast to finish). Currently this only 93 * contains broadcasts to registered receivers, to avoid spinning up 94 * a bunch of processes to execute IntentReceiver components. Background- 95 * and foreground-priority broadcasts are queued separately. 96 */ 97 final ArrayList<BroadcastRecord> mParallelBroadcasts = new ArrayList<>(); 98 99 /** 100 * List of all active broadcasts that are to be executed one at a time. 101 * The object at the top of the list is the currently activity broadcasts; 102 * those after it are waiting for the top to finish. As with parallel 103 * broadcasts, separate background- and foreground-priority queues are 104 * maintained. 105 */ 106 final ArrayList<BroadcastRecord> mOrderedBroadcasts = new ArrayList<>(); 107 108 /** 109 * Historical data of past broadcasts, for debugging. This is a ring buffer 110 * whose last element is at mHistoryNext. 111 */ 112 final BroadcastRecord[] mBroadcastHistory = new BroadcastRecord[MAX_BROADCAST_HISTORY]; 113 int mHistoryNext = 0; 114 115 /** 116 * Summary of historical data of past broadcasts, for debugging. This is a 117 * ring buffer whose last element is at mSummaryHistoryNext. 118 */ 119 final Intent[] mBroadcastSummaryHistory = new Intent[MAX_BROADCAST_SUMMARY_HISTORY]; 120 int mSummaryHistoryNext = 0; 121 122 /** 123 * Various milestone timestamps of entries in the mBroadcastSummaryHistory ring 124 * buffer, also tracked via the mSummaryHistoryNext index. These are all in wall 125 * clock time, not elapsed. 126 */ 127 final long[] mSummaryHistoryEnqueueTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 128 final long[] mSummaryHistoryDispatchTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 129 final long[] mSummaryHistoryFinishTime = new long[MAX_BROADCAST_SUMMARY_HISTORY]; 130 131 /** 132 * Set when we current have a BROADCAST_INTENT_MSG in flight. 133 */ 134 boolean mBroadcastsScheduled = false; 135 136 /** 137 * True if we have a pending unexpired BROADCAST_TIMEOUT_MSG posted to our handler. 138 */ 139 boolean mPendingBroadcastTimeoutMessage; 140 141 /** 142 * Intent broadcasts that we have tried to start, but are 143 * waiting for the application's process to be created. We only 144 * need one per scheduling class (instead of a list) because we always 145 * process broadcasts one at a time, so no others can be started while 146 * waiting for this one. 147 */ 148 BroadcastRecord mPendingBroadcast = null; 149 150 /** 151 * The receiver index that is pending, to restart the broadcast if needed. 152 */ 153 int mPendingBroadcastRecvIndex; 154 155 static final int BROADCAST_INTENT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG; 156 static final int BROADCAST_TIMEOUT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 1; 157 static final int SCHEDULE_TEMP_WHITELIST_MSG 158 = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 2; 159 160 final BroadcastHandler mHandler; 161 162 private final class BroadcastHandler extends Handler { 163 public BroadcastHandler(Looper looper) { 164 super(looper, null, true); 165 } 166 167 @Override 168 public void handleMessage(Message msg) { 169 switch (msg.what) { 170 case BROADCAST_INTENT_MSG: { 171 if (DEBUG_BROADCAST) Slog.v( 172 TAG_BROADCAST, "Received BROADCAST_INTENT_MSG"); 173 processNextBroadcast(true); 174 } break; 175 case BROADCAST_TIMEOUT_MSG: { 176 synchronized (mService) { 177 broadcastTimeoutLocked(true); 178 } 179 } break; 180 case SCHEDULE_TEMP_WHITELIST_MSG: { 181 DeviceIdleController.LocalService dic = mService.mLocalDeviceIdleController; 182 if (dic != null) { 183 dic.addPowerSaveTempWhitelistAppDirect(UserHandle.getAppId(msg.arg1), 184 msg.arg2, true, (String)msg.obj); 185 } 186 } break; 187 } 188 } 189 } 190 191 private final class AppNotResponding implements Runnable { 192 private final ProcessRecord mApp; 193 private final String mAnnotation; 194 195 public AppNotResponding(ProcessRecord app, String annotation) { 196 mApp = app; 197 mAnnotation = annotation; 198 } 199 200 @Override 201 public void run() { 202 mService.mAppErrors.appNotResponding(mApp, null, null, false, mAnnotation); 203 } 204 } 205 206 BroadcastQueue(ActivityManagerService service, Handler handler, 207 String name, long timeoutPeriod, boolean allowDelayBehindServices) { 208 mService = service; 209 mHandler = new BroadcastHandler(handler.getLooper()); 210 mQueueName = name; 211 mTimeoutPeriod = timeoutPeriod; 212 mDelayBehindServices = allowDelayBehindServices; 213 } 214 215 public boolean isPendingBroadcastProcessLocked(int pid) { 216 return mPendingBroadcast != null && mPendingBroadcast.curApp.pid == pid; 217 } 218 219 public void enqueueParallelBroadcastLocked(BroadcastRecord r) { 220 mParallelBroadcasts.add(r); 221 r.enqueueClockTime = System.currentTimeMillis(); 222 } 223 224 public void enqueueOrderedBroadcastLocked(BroadcastRecord r) { 225 mOrderedBroadcasts.add(r); 226 r.enqueueClockTime = System.currentTimeMillis(); 227 } 228 229 public final boolean replaceParallelBroadcastLocked(BroadcastRecord r) { 230 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 231 if (r.intent.filterEquals(mParallelBroadcasts.get(i).intent)) { 232 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 233 "***** DROPPING PARALLEL [" 234 + mQueueName + "]: " + r.intent); 235 mParallelBroadcasts.set(i, r); 236 return true; 237 } 238 } 239 return false; 240 } 241 242 public final boolean replaceOrderedBroadcastLocked(BroadcastRecord r) { 243 for (int i = mOrderedBroadcasts.size() - 1; i > 0; i--) { 244 if (r.intent.filterEquals(mOrderedBroadcasts.get(i).intent)) { 245 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 246 "***** DROPPING ORDERED [" 247 + mQueueName + "]: " + r.intent); 248 mOrderedBroadcasts.set(i, r); 249 return true; 250 } 251 } 252 return false; 253 } 254 255 private final void processCurBroadcastLocked(BroadcastRecord r, 256 ProcessRecord app) throws RemoteException { 257 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 258 "Process cur broadcast " + r + " for app " + app); 259 if (app.thread == null) { 260 throw new RemoteException(); 261 } 262 r.receiver = app.thread.asBinder(); 263 r.curApp = app; 264 app.curReceiver = r; 265 app.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_RECEIVER); 266 mService.updateLruProcessLocked(app, false, null); 267 mService.updateOomAdjLocked(); 268 269 // Tell the application to launch this receiver. 270 r.intent.setComponent(r.curComponent); 271 272 boolean started = false; 273 try { 274 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 275 "Delivering to component " + r.curComponent 276 + ": " + r); 277 mService.notifyPackageUse(r.intent.getComponent().getPackageName()); 278 app.thread.scheduleReceiver(new Intent(r.intent), r.curReceiver, 279 mService.compatibilityInfoForPackageLocked(r.curReceiver.applicationInfo), 280 r.resultCode, r.resultData, r.resultExtras, r.ordered, r.userId, 281 app.repProcState); 282 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 283 "Process cur broadcast " + r + " DELIVERED for app " + app); 284 started = true; 285 } finally { 286 if (!started) { 287 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 288 "Process cur broadcast " + r + ": NOT STARTED!"); 289 r.receiver = null; 290 r.curApp = null; 291 app.curReceiver = null; 292 } 293 } 294 } 295 296 public boolean sendPendingBroadcastsLocked(ProcessRecord app) { 297 boolean didSomething = false; 298 final BroadcastRecord br = mPendingBroadcast; 299 if (br != null && br.curApp.pid == app.pid) { 300 try { 301 mPendingBroadcast = null; 302 processCurBroadcastLocked(br, app); 303 didSomething = true; 304 } catch (Exception e) { 305 Slog.w(TAG, "Exception in new application when starting receiver " 306 + br.curComponent.flattenToShortString(), e); 307 logBroadcastReceiverDiscardLocked(br); 308 finishReceiverLocked(br, br.resultCode, br.resultData, 309 br.resultExtras, br.resultAbort, false); 310 scheduleBroadcastsLocked(); 311 // We need to reset the state if we failed to start the receiver. 312 br.state = BroadcastRecord.IDLE; 313 throw new RuntimeException(e.getMessage()); 314 } 315 } 316 return didSomething; 317 } 318 319 public void skipPendingBroadcastLocked(int pid) { 320 final BroadcastRecord br = mPendingBroadcast; 321 if (br != null && br.curApp.pid == pid) { 322 br.state = BroadcastRecord.IDLE; 323 br.nextReceiver = mPendingBroadcastRecvIndex; 324 mPendingBroadcast = null; 325 scheduleBroadcastsLocked(); 326 } 327 } 328 329 public void skipCurrentReceiverLocked(ProcessRecord app) { 330 BroadcastRecord r = null; 331 if (mOrderedBroadcasts.size() > 0) { 332 BroadcastRecord br = mOrderedBroadcasts.get(0); 333 if (br.curApp == app) { 334 r = br; 335 } 336 } 337 if (r == null && mPendingBroadcast != null && mPendingBroadcast.curApp == app) { 338 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 339 "[" + mQueueName + "] skip & discard pending app " + r); 340 r = mPendingBroadcast; 341 } 342 343 if (r != null) { 344 logBroadcastReceiverDiscardLocked(r); 345 finishReceiverLocked(r, r.resultCode, r.resultData, 346 r.resultExtras, r.resultAbort, false); 347 scheduleBroadcastsLocked(); 348 } 349 } 350 351 public void scheduleBroadcastsLocked() { 352 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Schedule broadcasts [" 353 + mQueueName + "]: current=" 354 + mBroadcastsScheduled); 355 356 if (mBroadcastsScheduled) { 357 return; 358 } 359 mHandler.sendMessage(mHandler.obtainMessage(BROADCAST_INTENT_MSG, this)); 360 mBroadcastsScheduled = true; 361 } 362 363 public BroadcastRecord getMatchingOrderedReceiver(IBinder receiver) { 364 if (mOrderedBroadcasts.size() > 0) { 365 final BroadcastRecord r = mOrderedBroadcasts.get(0); 366 if (r != null && r.receiver == receiver) { 367 return r; 368 } 369 } 370 return null; 371 } 372 373 public boolean finishReceiverLocked(BroadcastRecord r, int resultCode, 374 String resultData, Bundle resultExtras, boolean resultAbort, boolean waitForServices) { 375 final int state = r.state; 376 final ActivityInfo receiver = r.curReceiver; 377 r.state = BroadcastRecord.IDLE; 378 if (state == BroadcastRecord.IDLE) { 379 Slog.w(TAG, "finishReceiver [" + mQueueName + "] called but state is IDLE"); 380 } 381 r.receiver = null; 382 r.intent.setComponent(null); 383 if (r.curApp != null && r.curApp.curReceiver == r) { 384 r.curApp.curReceiver = null; 385 } 386 if (r.curFilter != null) { 387 r.curFilter.receiverList.curBroadcast = null; 388 } 389 r.curFilter = null; 390 r.curReceiver = null; 391 r.curApp = null; 392 mPendingBroadcast = null; 393 394 r.resultCode = resultCode; 395 r.resultData = resultData; 396 r.resultExtras = resultExtras; 397 if (resultAbort && (r.intent.getFlags()&Intent.FLAG_RECEIVER_NO_ABORT) == 0) { 398 r.resultAbort = resultAbort; 399 } else { 400 r.resultAbort = false; 401 } 402 403 if (waitForServices && r.curComponent != null && r.queue.mDelayBehindServices 404 && r.queue.mOrderedBroadcasts.size() > 0 405 && r.queue.mOrderedBroadcasts.get(0) == r) { 406 ActivityInfo nextReceiver; 407 if (r.nextReceiver < r.receivers.size()) { 408 Object obj = r.receivers.get(r.nextReceiver); 409 nextReceiver = (obj instanceof ActivityInfo) ? (ActivityInfo)obj : null; 410 } else { 411 nextReceiver = null; 412 } 413 // Don't do this if the next receive is in the same process as the current one. 414 if (receiver == null || nextReceiver == null 415 || receiver.applicationInfo.uid != nextReceiver.applicationInfo.uid 416 || !receiver.processName.equals(nextReceiver.processName)) { 417 // In this case, we are ready to process the next receiver for the current broadcast, 418 // but are on a queue that would like to wait for services to finish before moving 419 // on. If there are background services currently starting, then we will go into a 420 // special state where we hold off on continuing this broadcast until they are done. 421 if (mService.mServices.hasBackgroundServices(r.userId)) { 422 Slog.i(TAG, "Delay finish: " + r.curComponent.flattenToShortString()); 423 r.state = BroadcastRecord.WAITING_SERVICES; 424 return false; 425 } 426 } 427 } 428 429 r.curComponent = null; 430 431 // We will process the next receiver right now if this is finishing 432 // an app receiver (which is always asynchronous) or after we have 433 // come back from calling a receiver. 434 return state == BroadcastRecord.APP_RECEIVE 435 || state == BroadcastRecord.CALL_DONE_RECEIVE; 436 } 437 438 public void backgroundServicesFinishedLocked(int userId) { 439 if (mOrderedBroadcasts.size() > 0) { 440 BroadcastRecord br = mOrderedBroadcasts.get(0); 441 if (br.userId == userId && br.state == BroadcastRecord.WAITING_SERVICES) { 442 Slog.i(TAG, "Resuming delayed broadcast"); 443 br.curComponent = null; 444 br.state = BroadcastRecord.IDLE; 445 processNextBroadcast(false); 446 } 447 } 448 } 449 450 private void performReceiveLocked(ProcessRecord app, IIntentReceiver receiver, 451 Intent intent, int resultCode, String data, Bundle extras, 452 boolean ordered, boolean sticky, int sendingUser) throws RemoteException { 453 // Send the intent to the receiver asynchronously using one-way binder calls. 454 if (app != null) { 455 if (app.thread != null) { 456 // If we have an app thread, do the call through that so it is 457 // correctly ordered with other one-way calls. 458 try { 459 app.thread.scheduleRegisteredReceiver(receiver, intent, resultCode, 460 data, extras, ordered, sticky, sendingUser, app.repProcState); 461 // TODO: Uncomment this when (b/28322359) is fixed and we aren't getting 462 // DeadObjectException when the process isn't actually dead. 463 //} catch (DeadObjectException ex) { 464 // Failed to call into the process. It's dying so just let it die and move on. 465 // throw ex; 466 } catch (RemoteException ex) { 467 // Failed to call into the process. It's either dying or wedged. Kill it gently. 468 synchronized (mService) { 469 Slog.w(TAG, "Can't deliver broadcast to " + app.processName 470 + " (pid " + app.pid + "). Crashing it."); 471 app.scheduleCrash("can't deliver broadcast"); 472 } 473 throw ex; 474 } 475 } else { 476 // Application has died. Receiver doesn't exist. 477 throw new RemoteException("app.thread must not be null"); 478 } 479 } else { 480 receiver.performReceive(intent, resultCode, data, extras, ordered, 481 sticky, sendingUser); 482 } 483 } 484 485 private void deliverToRegisteredReceiverLocked(BroadcastRecord r, 486 BroadcastFilter filter, boolean ordered, int index) { 487 boolean skip = false; 488 if (filter.requiredPermission != null) { 489 int perm = mService.checkComponentPermission(filter.requiredPermission, 490 r.callingPid, r.callingUid, -1, true); 491 if (perm != PackageManager.PERMISSION_GRANTED) { 492 Slog.w(TAG, "Permission Denial: broadcasting " 493 + r.intent.toString() 494 + " from " + r.callerPackage + " (pid=" 495 + r.callingPid + ", uid=" + r.callingUid + ")" 496 + " requires " + filter.requiredPermission 497 + " due to registered receiver " + filter); 498 skip = true; 499 } else { 500 final int opCode = AppOpsManager.permissionToOpCode(filter.requiredPermission); 501 if (opCode != AppOpsManager.OP_NONE 502 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 503 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 504 Slog.w(TAG, "Appop Denial: broadcasting " 505 + r.intent.toString() 506 + " from " + r.callerPackage + " (pid=" 507 + r.callingPid + ", uid=" + r.callingUid + ")" 508 + " requires appop " + AppOpsManager.permissionToOp( 509 filter.requiredPermission) 510 + " due to registered receiver " + filter); 511 skip = true; 512 } 513 } 514 } 515 if (!skip && r.requiredPermissions != null && r.requiredPermissions.length > 0) { 516 for (int i = 0; i < r.requiredPermissions.length; i++) { 517 String requiredPermission = r.requiredPermissions[i]; 518 int perm = mService.checkComponentPermission(requiredPermission, 519 filter.receiverList.pid, filter.receiverList.uid, -1, true); 520 if (perm != PackageManager.PERMISSION_GRANTED) { 521 Slog.w(TAG, "Permission Denial: receiving " 522 + r.intent.toString() 523 + " to " + filter.receiverList.app 524 + " (pid=" + filter.receiverList.pid 525 + ", uid=" + filter.receiverList.uid + ")" 526 + " requires " + requiredPermission 527 + " due to sender " + r.callerPackage 528 + " (uid " + r.callingUid + ")"); 529 skip = true; 530 break; 531 } 532 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 533 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 534 && mService.mAppOpsService.noteOperation(appOp, 535 filter.receiverList.uid, filter.packageName) 536 != AppOpsManager.MODE_ALLOWED) { 537 Slog.w(TAG, "Appop Denial: receiving " 538 + r.intent.toString() 539 + " to " + filter.receiverList.app 540 + " (pid=" + filter.receiverList.pid 541 + ", uid=" + filter.receiverList.uid + ")" 542 + " requires appop " + AppOpsManager.permissionToOp( 543 requiredPermission) 544 + " due to sender " + r.callerPackage 545 + " (uid " + r.callingUid + ")"); 546 skip = true; 547 break; 548 } 549 } 550 } 551 if (!skip && (r.requiredPermissions == null || r.requiredPermissions.length == 0)) { 552 int perm = mService.checkComponentPermission(null, 553 filter.receiverList.pid, filter.receiverList.uid, -1, true); 554 if (perm != PackageManager.PERMISSION_GRANTED) { 555 Slog.w(TAG, "Permission Denial: security check failed when receiving " 556 + r.intent.toString() 557 + " to " + filter.receiverList.app 558 + " (pid=" + filter.receiverList.pid 559 + ", uid=" + filter.receiverList.uid + ")" 560 + " due to sender " + r.callerPackage 561 + " (uid " + r.callingUid + ")"); 562 skip = true; 563 } 564 } 565 if (!skip && r.appOp != AppOpsManager.OP_NONE 566 && mService.mAppOpsService.noteOperation(r.appOp, 567 filter.receiverList.uid, filter.packageName) 568 != AppOpsManager.MODE_ALLOWED) { 569 Slog.w(TAG, "Appop Denial: receiving " 570 + r.intent.toString() 571 + " to " + filter.receiverList.app 572 + " (pid=" + filter.receiverList.pid 573 + ", uid=" + filter.receiverList.uid + ")" 574 + " requires appop " + AppOpsManager.opToName(r.appOp) 575 + " due to sender " + r.callerPackage 576 + " (uid " + r.callingUid + ")"); 577 skip = true; 578 } 579 if (!skip) { 580 final int allowed = mService.checkAllowBackgroundLocked(filter.receiverList.uid, 581 filter.packageName, -1, true); 582 if (allowed == ActivityManager.APP_START_MODE_DISABLED) { 583 Slog.w(TAG, "Background execution not allowed: receiving " 584 + r.intent 585 + " to " + filter.receiverList.app 586 + " (pid=" + filter.receiverList.pid 587 + ", uid=" + filter.receiverList.uid + ")"); 588 skip = true; 589 } 590 } 591 592 if (!mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 593 r.callingPid, r.resolvedType, filter.receiverList.uid)) { 594 skip = true; 595 } 596 597 if (!skip && (filter.receiverList.app == null || filter.receiverList.app.crashing)) { 598 Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r 599 + " to " + filter.receiverList + ": process crashing"); 600 skip = true; 601 } 602 603 if (skip) { 604 r.delivery[index] = BroadcastRecord.DELIVERY_SKIPPED; 605 return; 606 } 607 608 // If permissions need a review before any of the app components can run, we drop 609 // the broadcast and if the calling app is in the foreground and the broadcast is 610 // explicit we launch the review UI passing it a pending intent to send the skipped 611 // broadcast. 612 if (Build.PERMISSIONS_REVIEW_REQUIRED) { 613 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, filter.packageName, 614 filter.owningUserId)) { 615 r.delivery[index] = BroadcastRecord.DELIVERY_SKIPPED; 616 return; 617 } 618 } 619 620 r.delivery[index] = BroadcastRecord.DELIVERY_DELIVERED; 621 622 // If this is not being sent as an ordered broadcast, then we 623 // don't want to touch the fields that keep track of the current 624 // state of ordered broadcasts. 625 if (ordered) { 626 r.receiver = filter.receiverList.receiver.asBinder(); 627 r.curFilter = filter; 628 filter.receiverList.curBroadcast = r; 629 r.state = BroadcastRecord.CALL_IN_RECEIVE; 630 if (filter.receiverList.app != null) { 631 // Bump hosting application to no longer be in background 632 // scheduling class. Note that we can't do that if there 633 // isn't an app... but we can only be in that case for 634 // things that directly call the IActivityManager API, which 635 // are already core system stuff so don't matter for this. 636 r.curApp = filter.receiverList.app; 637 filter.receiverList.app.curReceiver = r; 638 mService.updateOomAdjLocked(r.curApp); 639 } 640 } 641 try { 642 if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST, 643 "Delivering to " + filter + " : " + r); 644 performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver, 645 new Intent(r.intent), r.resultCode, r.resultData, 646 r.resultExtras, r.ordered, r.initialSticky, r.userId); 647 if (ordered) { 648 r.state = BroadcastRecord.CALL_DONE_RECEIVE; 649 } 650 } catch (RemoteException e) { 651 Slog.w(TAG, "Failure sending broadcast " + r.intent, e); 652 if (ordered) { 653 r.receiver = null; 654 r.curFilter = null; 655 filter.receiverList.curBroadcast = null; 656 if (filter.receiverList.app != null) { 657 filter.receiverList.app.curReceiver = null; 658 } 659 } 660 } 661 } 662 663 private boolean requestStartTargetPermissionsReviewIfNeededLocked( 664 BroadcastRecord receiverRecord, String receivingPackageName, 665 final int receivingUserId) { 666 if (!mService.getPackageManagerInternalLocked().isPermissionsReviewRequired( 667 receivingPackageName, receivingUserId)) { 668 return true; 669 } 670 671 final boolean callerForeground = receiverRecord.callerApp != null 672 ? receiverRecord.callerApp.setSchedGroup != ProcessList.SCHED_GROUP_BACKGROUND 673 : true; 674 675 // Show a permission review UI only for explicit broadcast from a foreground app 676 if (callerForeground && receiverRecord.intent.getComponent() != null) { 677 IIntentSender target = mService.getIntentSenderLocked( 678 ActivityManager.INTENT_SENDER_BROADCAST, receiverRecord.callerPackage, 679 receiverRecord.callingUid, receiverRecord.userId, null, null, 0, 680 new Intent[]{receiverRecord.intent}, 681 new String[]{receiverRecord.intent.resolveType(mService.mContext 682 .getContentResolver())}, 683 PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT 684 | PendingIntent.FLAG_IMMUTABLE, null); 685 686 final Intent intent = new Intent(Intent.ACTION_REVIEW_PERMISSIONS); 687 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK 688 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 689 intent.putExtra(Intent.EXTRA_PACKAGE_NAME, receivingPackageName); 690 intent.putExtra(Intent.EXTRA_INTENT, new IntentSender(target)); 691 692 if (DEBUG_PERMISSIONS_REVIEW) { 693 Slog.i(TAG, "u" + receivingUserId + " Launching permission review for package " 694 + receivingPackageName); 695 } 696 697 mHandler.post(new Runnable() { 698 @Override 699 public void run() { 700 mService.mContext.startActivityAsUser(intent, new UserHandle(receivingUserId)); 701 } 702 }); 703 } else { 704 Slog.w(TAG, "u" + receivingUserId + " Receiving a broadcast in package" 705 + receivingPackageName + " requires a permissions review"); 706 } 707 708 return false; 709 } 710 711 final void scheduleTempWhitelistLocked(int uid, long duration, BroadcastRecord r) { 712 if (duration > Integer.MAX_VALUE) { 713 duration = Integer.MAX_VALUE; 714 } 715 // XXX ideally we should pause the broadcast until everything behind this is done, 716 // or else we will likely start dispatching the broadcast before we have opened 717 // access to the app (there is a lot of asynchronicity behind this). It is probably 718 // not that big a deal, however, because the main purpose here is to allow apps 719 // to hold wake locks, and they will be able to acquire their wake lock immediately 720 // it just won't be enabled until we get through this work. 721 StringBuilder b = new StringBuilder(); 722 b.append("broadcast:"); 723 UserHandle.formatUid(b, r.callingUid); 724 b.append(":"); 725 if (r.intent.getAction() != null) { 726 b.append(r.intent.getAction()); 727 } else if (r.intent.getComponent() != null) { 728 b.append(r.intent.getComponent().flattenToShortString()); 729 } else if (r.intent.getData() != null) { 730 b.append(r.intent.getData()); 731 } 732 mHandler.obtainMessage(SCHEDULE_TEMP_WHITELIST_MSG, uid, (int)duration, b.toString()) 733 .sendToTarget(); 734 } 735 736 final void processNextBroadcast(boolean fromMsg) { 737 synchronized(mService) { 738 BroadcastRecord r; 739 740 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast [" 741 + mQueueName + "]: " 742 + mParallelBroadcasts.size() + " broadcasts, " 743 + mOrderedBroadcasts.size() + " ordered broadcasts"); 744 745 mService.updateCpuStats(); 746 747 if (fromMsg) { 748 mBroadcastsScheduled = false; 749 } 750 751 // First, deliver any non-serialized broadcasts right away. 752 while (mParallelBroadcasts.size() > 0) { 753 r = mParallelBroadcasts.remove(0); 754 r.dispatchTime = SystemClock.uptimeMillis(); 755 r.dispatchClockTime = System.currentTimeMillis(); 756 final int N = r.receivers.size(); 757 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast [" 758 + mQueueName + "] " + r); 759 for (int i=0; i<N; i++) { 760 Object target = r.receivers.get(i); 761 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 762 "Delivering non-ordered on [" + mQueueName + "] to registered " 763 + target + ": " + r); 764 deliverToRegisteredReceiverLocked(r, (BroadcastFilter)target, false, i); 765 } 766 addBroadcastToHistoryLocked(r); 767 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast [" 768 + mQueueName + "] " + r); 769 } 770 771 // Now take care of the next serialized one... 772 773 // If we are waiting for a process to come up to handle the next 774 // broadcast, then do nothing at this point. Just in case, we 775 // check that the process we're waiting for still exists. 776 if (mPendingBroadcast != null) { 777 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 778 "processNextBroadcast [" + mQueueName + "]: waiting for " 779 + mPendingBroadcast.curApp); 780 781 boolean isDead; 782 synchronized (mService.mPidsSelfLocked) { 783 ProcessRecord proc = mService.mPidsSelfLocked.get(mPendingBroadcast.curApp.pid); 784 isDead = proc == null || proc.crashing; 785 } 786 if (!isDead) { 787 // It's still alive, so keep waiting 788 return; 789 } else { 790 Slog.w(TAG, "pending app [" 791 + mQueueName + "]" + mPendingBroadcast.curApp 792 + " died before responding to broadcast"); 793 mPendingBroadcast.state = BroadcastRecord.IDLE; 794 mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex; 795 mPendingBroadcast = null; 796 } 797 } 798 799 boolean looped = false; 800 801 do { 802 if (mOrderedBroadcasts.size() == 0) { 803 // No more broadcasts pending, so all done! 804 mService.scheduleAppGcsLocked(); 805 if (looped) { 806 // If we had finished the last ordered broadcast, then 807 // make sure all processes have correct oom and sched 808 // adjustments. 809 mService.updateOomAdjLocked(); 810 } 811 return; 812 } 813 r = mOrderedBroadcasts.get(0); 814 boolean forceReceive = false; 815 816 // Ensure that even if something goes awry with the timeout 817 // detection, we catch "hung" broadcasts here, discard them, 818 // and continue to make progress. 819 // 820 // This is only done if the system is ready so that PRE_BOOT_COMPLETED 821 // receivers don't get executed with timeouts. They're intended for 822 // one time heavy lifting after system upgrades and can take 823 // significant amounts of time. 824 int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; 825 if (mService.mProcessesReady && r.dispatchTime > 0) { 826 long now = SystemClock.uptimeMillis(); 827 if ((numReceivers > 0) && 828 (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { 829 Slog.w(TAG, "Hung broadcast [" 830 + mQueueName + "] discarded after timeout failure:" 831 + " now=" + now 832 + " dispatchTime=" + r.dispatchTime 833 + " startTime=" + r.receiverTime 834 + " intent=" + r.intent 835 + " numReceivers=" + numReceivers 836 + " nextReceiver=" + r.nextReceiver 837 + " state=" + r.state); 838 broadcastTimeoutLocked(false); // forcibly finish this broadcast 839 forceReceive = true; 840 r.state = BroadcastRecord.IDLE; 841 } 842 } 843 844 if (r.state != BroadcastRecord.IDLE) { 845 if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST, 846 "processNextBroadcast(" 847 + mQueueName + ") called when not idle (state=" 848 + r.state + ")"); 849 return; 850 } 851 852 if (r.receivers == null || r.nextReceiver >= numReceivers 853 || r.resultAbort || forceReceive) { 854 // No more receivers for this broadcast! Send the final 855 // result if requested... 856 if (r.resultTo != null) { 857 try { 858 if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST, 859 "Finishing broadcast [" + mQueueName + "] " 860 + r.intent.getAction() + " app=" + r.callerApp); 861 performReceiveLocked(r.callerApp, r.resultTo, 862 new Intent(r.intent), r.resultCode, 863 r.resultData, r.resultExtras, false, false, r.userId); 864 // Set this to null so that the reference 865 // (local and remote) isn't kept in the mBroadcastHistory. 866 r.resultTo = null; 867 } catch (RemoteException e) { 868 r.resultTo = null; 869 Slog.w(TAG, "Failure [" 870 + mQueueName + "] sending broadcast result of " 871 + r.intent, e); 872 873 } 874 } 875 876 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG"); 877 cancelBroadcastTimeoutLocked(); 878 879 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 880 "Finished with ordered broadcast " + r); 881 882 // ... and on to the next... 883 addBroadcastToHistoryLocked(r); 884 mOrderedBroadcasts.remove(0); 885 r = null; 886 looped = true; 887 continue; 888 } 889 } while (r == null); 890 891 // Get the next receiver... 892 int recIdx = r.nextReceiver++; 893 894 // Keep track of when this receiver started, and make sure there 895 // is a timeout message pending to kill it if need be. 896 r.receiverTime = SystemClock.uptimeMillis(); 897 if (recIdx == 0) { 898 r.dispatchTime = r.receiverTime; 899 r.dispatchClockTime = System.currentTimeMillis(); 900 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast [" 901 + mQueueName + "] " + r); 902 } 903 if (! mPendingBroadcastTimeoutMessage) { 904 long timeoutTime = r.receiverTime + mTimeoutPeriod; 905 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 906 "Submitting BROADCAST_TIMEOUT_MSG [" 907 + mQueueName + "] for " + r + " at " + timeoutTime); 908 setBroadcastTimeoutLocked(timeoutTime); 909 } 910 911 final BroadcastOptions brOptions = r.options; 912 final Object nextReceiver = r.receivers.get(recIdx); 913 914 if (nextReceiver instanceof BroadcastFilter) { 915 // Simple case: this is a registered receiver who gets 916 // a direct call. 917 BroadcastFilter filter = (BroadcastFilter)nextReceiver; 918 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 919 "Delivering ordered [" 920 + mQueueName + "] to registered " 921 + filter + ": " + r); 922 deliverToRegisteredReceiverLocked(r, filter, r.ordered, recIdx); 923 if (r.receiver == null || !r.ordered) { 924 // The receiver has already finished, so schedule to 925 // process the next one. 926 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing [" 927 + mQueueName + "]: ordered=" 928 + r.ordered + " receiver=" + r.receiver); 929 r.state = BroadcastRecord.IDLE; 930 scheduleBroadcastsLocked(); 931 } else { 932 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 933 scheduleTempWhitelistLocked(filter.owningUid, 934 brOptions.getTemporaryAppWhitelistDuration(), r); 935 } 936 } 937 return; 938 } 939 940 // Hard case: need to instantiate the receiver, possibly 941 // starting its application process to host it. 942 943 ResolveInfo info = 944 (ResolveInfo)nextReceiver; 945 ComponentName component = new ComponentName( 946 info.activityInfo.applicationInfo.packageName, 947 info.activityInfo.name); 948 949 boolean skip = false; 950 if (brOptions != null && 951 (info.activityInfo.applicationInfo.targetSdkVersion 952 < brOptions.getMinManifestReceiverApiLevel() || 953 info.activityInfo.applicationInfo.targetSdkVersion 954 > brOptions.getMaxManifestReceiverApiLevel())) { 955 skip = true; 956 } 957 int perm = mService.checkComponentPermission(info.activityInfo.permission, 958 r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid, 959 info.activityInfo.exported); 960 if (!skip && perm != PackageManager.PERMISSION_GRANTED) { 961 if (!info.activityInfo.exported) { 962 Slog.w(TAG, "Permission Denial: broadcasting " 963 + r.intent.toString() 964 + " from " + r.callerPackage + " (pid=" + r.callingPid 965 + ", uid=" + r.callingUid + ")" 966 + " is not exported from uid " + info.activityInfo.applicationInfo.uid 967 + " due to receiver " + component.flattenToShortString()); 968 } else { 969 Slog.w(TAG, "Permission Denial: broadcasting " 970 + r.intent.toString() 971 + " from " + r.callerPackage + " (pid=" + r.callingPid 972 + ", uid=" + r.callingUid + ")" 973 + " requires " + info.activityInfo.permission 974 + " due to receiver " + component.flattenToShortString()); 975 } 976 skip = true; 977 } else if (!skip && info.activityInfo.permission != null) { 978 final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission); 979 if (opCode != AppOpsManager.OP_NONE 980 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 981 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 982 Slog.w(TAG, "Appop Denial: broadcasting " 983 + r.intent.toString() 984 + " from " + r.callerPackage + " (pid=" 985 + r.callingPid + ", uid=" + r.callingUid + ")" 986 + " requires appop " + AppOpsManager.permissionToOp( 987 info.activityInfo.permission) 988 + " due to registered receiver " 989 + component.flattenToShortString()); 990 skip = true; 991 } 992 } 993 if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID && 994 r.requiredPermissions != null && r.requiredPermissions.length > 0) { 995 for (int i = 0; i < r.requiredPermissions.length; i++) { 996 String requiredPermission = r.requiredPermissions[i]; 997 try { 998 perm = AppGlobals.getPackageManager(). 999 checkPermission(requiredPermission, 1000 info.activityInfo.applicationInfo.packageName, 1001 UserHandle 1002 .getUserId(info.activityInfo.applicationInfo.uid)); 1003 } catch (RemoteException e) { 1004 perm = PackageManager.PERMISSION_DENIED; 1005 } 1006 if (perm != PackageManager.PERMISSION_GRANTED) { 1007 Slog.w(TAG, "Permission Denial: receiving " 1008 + r.intent + " to " 1009 + component.flattenToShortString() 1010 + " requires " + requiredPermission 1011 + " due to sender " + r.callerPackage 1012 + " (uid " + r.callingUid + ")"); 1013 skip = true; 1014 break; 1015 } 1016 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 1017 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 1018 && mService.mAppOpsService.noteOperation(appOp, 1019 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 1020 != AppOpsManager.MODE_ALLOWED) { 1021 Slog.w(TAG, "Appop Denial: receiving " 1022 + r.intent + " to " 1023 + component.flattenToShortString() 1024 + " requires appop " + AppOpsManager.permissionToOp( 1025 requiredPermission) 1026 + " due to sender " + r.callerPackage 1027 + " (uid " + r.callingUid + ")"); 1028 skip = true; 1029 break; 1030 } 1031 } 1032 } 1033 if (!skip && r.appOp != AppOpsManager.OP_NONE 1034 && mService.mAppOpsService.noteOperation(r.appOp, 1035 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 1036 != AppOpsManager.MODE_ALLOWED) { 1037 Slog.w(TAG, "Appop Denial: receiving " 1038 + r.intent + " to " 1039 + component.flattenToShortString() 1040 + " requires appop " + AppOpsManager.opToName(r.appOp) 1041 + " due to sender " + r.callerPackage 1042 + " (uid " + r.callingUid + ")"); 1043 skip = true; 1044 } 1045 if (!skip) { 1046 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 1047 r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid); 1048 } 1049 boolean isSingleton = false; 1050 try { 1051 isSingleton = mService.isSingleton(info.activityInfo.processName, 1052 info.activityInfo.applicationInfo, 1053 info.activityInfo.name, info.activityInfo.flags); 1054 } catch (SecurityException e) { 1055 Slog.w(TAG, e.getMessage()); 1056 skip = true; 1057 } 1058 if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) { 1059 if (ActivityManager.checkUidPermission( 1060 android.Manifest.permission.INTERACT_ACROSS_USERS, 1061 info.activityInfo.applicationInfo.uid) 1062 != PackageManager.PERMISSION_GRANTED) { 1063 Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString() 1064 + " requests FLAG_SINGLE_USER, but app does not hold " 1065 + android.Manifest.permission.INTERACT_ACROSS_USERS); 1066 skip = true; 1067 } 1068 } 1069 if (r.curApp != null && r.curApp.crashing) { 1070 // If the target process is crashing, just skip it. 1071 Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r 1072 + " to " + r.curApp + ": process crashing"); 1073 skip = true; 1074 } 1075 if (!skip) { 1076 boolean isAvailable = false; 1077 try { 1078 isAvailable = AppGlobals.getPackageManager().isPackageAvailable( 1079 info.activityInfo.packageName, 1080 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 1081 } catch (Exception e) { 1082 // all such failures mean we skip this receiver 1083 Slog.w(TAG, "Exception getting recipient info for " 1084 + info.activityInfo.packageName, e); 1085 } 1086 if (!isAvailable) { 1087 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1088 "Skipping delivery to " + info.activityInfo.packageName + " / " 1089 + info.activityInfo.applicationInfo.uid 1090 + " : package no longer available"); 1091 skip = true; 1092 } 1093 } 1094 1095 // If permissions need a review before any of the app components can run, we drop 1096 // the broadcast and if the calling app is in the foreground and the broadcast is 1097 // explicit we launch the review UI passing it a pending intent to send the skipped 1098 // broadcast. 1099 if (Build.PERMISSIONS_REVIEW_REQUIRED && !skip) { 1100 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, 1101 info.activityInfo.packageName, UserHandle.getUserId( 1102 info.activityInfo.applicationInfo.uid))) { 1103 skip = true; 1104 } 1105 } 1106 1107 // This is safe to do even if we are skipping the broadcast, and we need 1108 // this information now to evaluate whether it is going to be allowed to run. 1109 final int receiverUid = info.activityInfo.applicationInfo.uid; 1110 // If it's a singleton, it needs to be the same app or a special app 1111 if (r.callingUid != Process.SYSTEM_UID && isSingleton 1112 && mService.isValidSingletonCall(r.callingUid, receiverUid)) { 1113 info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0); 1114 } 1115 String targetProcess = info.activityInfo.processName; 1116 ProcessRecord app = mService.getProcessRecordLocked(targetProcess, 1117 info.activityInfo.applicationInfo.uid, false); 1118 1119 if (!skip) { 1120 final int allowed = mService.checkAllowBackgroundLocked( 1121 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName, -1, 1122 false); 1123 if (allowed != ActivityManager.APP_START_MODE_NORMAL) { 1124 // We won't allow this receiver to be launched if the app has been 1125 // completely disabled from launches, or it was not explicitly sent 1126 // to it and the app is in a state that should not receive it 1127 // (depending on how checkAllowBackgroundLocked has determined that). 1128 if (allowed == ActivityManager.APP_START_MODE_DISABLED) { 1129 Slog.w(TAG, "Background execution disabled: receiving " 1130 + r.intent + " to " 1131 + component.flattenToShortString()); 1132 skip = true; 1133 } else if (((r.intent.getFlags()&Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND) != 0) 1134 || (r.intent.getComponent() == null 1135 && r.intent.getPackage() == null 1136 && ((r.intent.getFlags() 1137 & Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND) == 0))) { 1138 Slog.w(TAG, "Background execution not allowed: receiving " 1139 + r.intent + " to " 1140 + component.flattenToShortString()); 1141 skip = true; 1142 } 1143 } 1144 } 1145 1146 if (skip) { 1147 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1148 "Skipping delivery of ordered [" + mQueueName + "] " 1149 + r + " for whatever reason"); 1150 r.delivery[recIdx] = BroadcastRecord.DELIVERY_SKIPPED; 1151 r.receiver = null; 1152 r.curFilter = null; 1153 r.state = BroadcastRecord.IDLE; 1154 scheduleBroadcastsLocked(); 1155 return; 1156 } 1157 1158 r.delivery[recIdx] = BroadcastRecord.DELIVERY_DELIVERED; 1159 r.state = BroadcastRecord.APP_RECEIVE; 1160 r.curComponent = component; 1161 r.curReceiver = info.activityInfo; 1162 if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) { 1163 Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, " 1164 + info.activityInfo + ", callingUid = " + r.callingUid + ", uid = " 1165 + info.activityInfo.applicationInfo.uid); 1166 } 1167 1168 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 1169 scheduleTempWhitelistLocked(receiverUid, 1170 brOptions.getTemporaryAppWhitelistDuration(), r); 1171 } 1172 1173 // Broadcast is being executed, its package can't be stopped. 1174 try { 1175 AppGlobals.getPackageManager().setPackageStoppedState( 1176 r.curComponent.getPackageName(), false, UserHandle.getUserId(r.callingUid)); 1177 } catch (RemoteException e) { 1178 } catch (IllegalArgumentException e) { 1179 Slog.w(TAG, "Failed trying to unstop package " 1180 + r.curComponent.getPackageName() + ": " + e); 1181 } 1182 1183 // Is this receiver's application already running? 1184 if (app != null && app.thread != null) { 1185 try { 1186 app.addPackage(info.activityInfo.packageName, 1187 info.activityInfo.applicationInfo.versionCode, mService.mProcessStats); 1188 processCurBroadcastLocked(r, app); 1189 return; 1190 } catch (RemoteException e) { 1191 Slog.w(TAG, "Exception when sending broadcast to " 1192 + r.curComponent, e); 1193 } catch (RuntimeException e) { 1194 Slog.wtf(TAG, "Failed sending broadcast to " 1195 + r.curComponent + " with " + r.intent, e); 1196 // If some unexpected exception happened, just skip 1197 // this broadcast. At this point we are not in the call 1198 // from a client, so throwing an exception out from here 1199 // will crash the entire system instead of just whoever 1200 // sent the broadcast. 1201 logBroadcastReceiverDiscardLocked(r); 1202 finishReceiverLocked(r, r.resultCode, r.resultData, 1203 r.resultExtras, r.resultAbort, false); 1204 scheduleBroadcastsLocked(); 1205 // We need to reset the state if we failed to start the receiver. 1206 r.state = BroadcastRecord.IDLE; 1207 return; 1208 } 1209 1210 // If a dead object exception was thrown -- fall through to 1211 // restart the application. 1212 } 1213 1214 // Not running -- get it started, to be executed when the app comes up. 1215 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1216 "Need to start app [" 1217 + mQueueName + "] " + targetProcess + " for broadcast " + r); 1218 if ((r.curApp=mService.startProcessLocked(targetProcess, 1219 info.activityInfo.applicationInfo, true, 1220 r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND, 1221 "broadcast", r.curComponent, 1222 (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false)) 1223 == null) { 1224 // Ah, this recipient is unavailable. Finish it if necessary, 1225 // and mark the broadcast record as ready for the next. 1226 Slog.w(TAG, "Unable to launch app " 1227 + info.activityInfo.applicationInfo.packageName + "/" 1228 + info.activityInfo.applicationInfo.uid + " for broadcast " 1229 + r.intent + ": process is bad"); 1230 logBroadcastReceiverDiscardLocked(r); 1231 finishReceiverLocked(r, r.resultCode, r.resultData, 1232 r.resultExtras, r.resultAbort, false); 1233 scheduleBroadcastsLocked(); 1234 r.state = BroadcastRecord.IDLE; 1235 return; 1236 } 1237 1238 mPendingBroadcast = r; 1239 mPendingBroadcastRecvIndex = recIdx; 1240 } 1241 } 1242 1243 final void setBroadcastTimeoutLocked(long timeoutTime) { 1244 if (! mPendingBroadcastTimeoutMessage) { 1245 Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this); 1246 mHandler.sendMessageAtTime(msg, timeoutTime); 1247 mPendingBroadcastTimeoutMessage = true; 1248 } 1249 } 1250 1251 final void cancelBroadcastTimeoutLocked() { 1252 if (mPendingBroadcastTimeoutMessage) { 1253 mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this); 1254 mPendingBroadcastTimeoutMessage = false; 1255 } 1256 } 1257 1258 final void broadcastTimeoutLocked(boolean fromMsg) { 1259 if (fromMsg) { 1260 mPendingBroadcastTimeoutMessage = false; 1261 } 1262 1263 if (mOrderedBroadcasts.size() == 0) { 1264 return; 1265 } 1266 1267 long now = SystemClock.uptimeMillis(); 1268 BroadcastRecord r = mOrderedBroadcasts.get(0); 1269 if (fromMsg) { 1270 if (mService.mDidDexOpt) { 1271 // Delay timeouts until dexopt finishes. 1272 mService.mDidDexOpt = false; 1273 long timeoutTime = SystemClock.uptimeMillis() + mTimeoutPeriod; 1274 setBroadcastTimeoutLocked(timeoutTime); 1275 return; 1276 } 1277 if (!mService.mProcessesReady) { 1278 // Only process broadcast timeouts if the system is ready. That way 1279 // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended 1280 // to do heavy lifting for system up. 1281 return; 1282 } 1283 1284 long timeoutTime = r.receiverTime + mTimeoutPeriod; 1285 if (timeoutTime > now) { 1286 // We can observe premature timeouts because we do not cancel and reset the 1287 // broadcast timeout message after each receiver finishes. Instead, we set up 1288 // an initial timeout then kick it down the road a little further as needed 1289 // when it expires. 1290 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1291 "Premature timeout [" 1292 + mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for " 1293 + timeoutTime); 1294 setBroadcastTimeoutLocked(timeoutTime); 1295 return; 1296 } 1297 } 1298 1299 BroadcastRecord br = mOrderedBroadcasts.get(0); 1300 if (br.state == BroadcastRecord.WAITING_SERVICES) { 1301 // In this case the broadcast had already finished, but we had decided to wait 1302 // for started services to finish as well before going on. So if we have actually 1303 // waited long enough time timeout the broadcast, let's give up on the whole thing 1304 // and just move on to the next. 1305 Slog.i(TAG, "Waited long enough for: " + (br.curComponent != null 1306 ? br.curComponent.flattenToShortString() : "(null)")); 1307 br.curComponent = null; 1308 br.state = BroadcastRecord.IDLE; 1309 processNextBroadcast(false); 1310 return; 1311 } 1312 1313 Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r. receiver 1314 + ", started " + (now - r.receiverTime) + "ms ago"); 1315 r.receiverTime = now; 1316 r.anrCount++; 1317 1318 // Current receiver has passed its expiration date. 1319 if (r.nextReceiver <= 0) { 1320 Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0"); 1321 return; 1322 } 1323 1324 ProcessRecord app = null; 1325 String anrMessage = null; 1326 1327 Object curReceiver = r.receivers.get(r.nextReceiver-1); 1328 r.delivery[r.nextReceiver-1] = BroadcastRecord.DELIVERY_TIMEOUT; 1329 Slog.w(TAG, "Receiver during timeout: " + curReceiver); 1330 logBroadcastReceiverDiscardLocked(r); 1331 if (curReceiver instanceof BroadcastFilter) { 1332 BroadcastFilter bf = (BroadcastFilter)curReceiver; 1333 if (bf.receiverList.pid != 0 1334 && bf.receiverList.pid != ActivityManagerService.MY_PID) { 1335 synchronized (mService.mPidsSelfLocked) { 1336 app = mService.mPidsSelfLocked.get( 1337 bf.receiverList.pid); 1338 } 1339 } 1340 } else { 1341 app = r.curApp; 1342 } 1343 1344 if (app != null) { 1345 anrMessage = "Broadcast of " + r.intent.toString(); 1346 } 1347 1348 if (mPendingBroadcast == r) { 1349 mPendingBroadcast = null; 1350 } 1351 1352 // Move on to the next receiver. 1353 finishReceiverLocked(r, r.resultCode, r.resultData, 1354 r.resultExtras, r.resultAbort, false); 1355 scheduleBroadcastsLocked(); 1356 1357 if (anrMessage != null) { 1358 // Post the ANR to the handler since we do not want to process ANRs while 1359 // potentially holding our lock. 1360 mHandler.post(new AppNotResponding(app, anrMessage)); 1361 } 1362 } 1363 1364 private final int ringAdvance(int x, final int increment, final int ringSize) { 1365 x += increment; 1366 if (x < 0) return (ringSize - 1); 1367 else if (x >= ringSize) return 0; 1368 else return x; 1369 } 1370 1371 private final void addBroadcastToHistoryLocked(BroadcastRecord r) { 1372 if (r.callingUid < 0) { 1373 // This was from a registerReceiver() call; ignore it. 1374 return; 1375 } 1376 r.finishTime = SystemClock.uptimeMillis(); 1377 1378 mBroadcastHistory[mHistoryNext] = r; 1379 mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY); 1380 1381 mBroadcastSummaryHistory[mSummaryHistoryNext] = r.intent; 1382 mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = r.enqueueClockTime; 1383 mSummaryHistoryDispatchTime[mSummaryHistoryNext] = r.dispatchClockTime; 1384 mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis(); 1385 mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY); 1386 } 1387 1388 boolean cleanupDisabledPackageReceiversLocked( 1389 String packageName, Set<String> filterByClasses, int userId, boolean doit) { 1390 boolean didSomething = false; 1391 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1392 didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1393 packageName, filterByClasses, userId, doit); 1394 if (!doit && didSomething) { 1395 return true; 1396 } 1397 } 1398 1399 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1400 didSomething |= mOrderedBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1401 packageName, filterByClasses, userId, doit); 1402 if (!doit && didSomething) { 1403 return true; 1404 } 1405 } 1406 1407 return didSomething; 1408 } 1409 1410 final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) { 1411 final int logIndex = r.nextReceiver - 1; 1412 if (logIndex >= 0 && logIndex < r.receivers.size()) { 1413 Object curReceiver = r.receivers.get(logIndex); 1414 if (curReceiver instanceof BroadcastFilter) { 1415 BroadcastFilter bf = (BroadcastFilter) curReceiver; 1416 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER, 1417 bf.owningUserId, System.identityHashCode(r), 1418 r.intent.getAction(), logIndex, System.identityHashCode(bf)); 1419 } else { 1420 ResolveInfo ri = (ResolveInfo) curReceiver; 1421 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1422 UserHandle.getUserId(ri.activityInfo.applicationInfo.uid), 1423 System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString()); 1424 } 1425 } else { 1426 if (logIndex < 0) Slog.w(TAG, 1427 "Discarding broadcast before first receiver is invoked: " + r); 1428 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1429 -1, System.identityHashCode(r), 1430 r.intent.getAction(), 1431 r.nextReceiver, 1432 "NONE"); 1433 } 1434 } 1435 1436 final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args, 1437 int opti, boolean dumpAll, String dumpPackage, boolean needSep) { 1438 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 1439 if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0 1440 || mPendingBroadcast != null) { 1441 boolean printed = false; 1442 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1443 BroadcastRecord br = mParallelBroadcasts.get(i); 1444 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1445 continue; 1446 } 1447 if (!printed) { 1448 if (needSep) { 1449 pw.println(); 1450 } 1451 needSep = true; 1452 printed = true; 1453 pw.println(" Active broadcasts [" + mQueueName + "]:"); 1454 } 1455 pw.println(" Active Broadcast " + mQueueName + " #" + i + ":"); 1456 br.dump(pw, " ", sdf); 1457 } 1458 printed = false; 1459 needSep = true; 1460 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1461 BroadcastRecord br = mOrderedBroadcasts.get(i); 1462 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1463 continue; 1464 } 1465 if (!printed) { 1466 if (needSep) { 1467 pw.println(); 1468 } 1469 needSep = true; 1470 printed = true; 1471 pw.println(" Active ordered broadcasts [" + mQueueName + "]:"); 1472 } 1473 pw.println(" Active Ordered Broadcast " + mQueueName + " #" + i + ":"); 1474 mOrderedBroadcasts.get(i).dump(pw, " ", sdf); 1475 } 1476 if (dumpPackage == null || (mPendingBroadcast != null 1477 && dumpPackage.equals(mPendingBroadcast.callerPackage))) { 1478 if (needSep) { 1479 pw.println(); 1480 } 1481 pw.println(" Pending broadcast [" + mQueueName + "]:"); 1482 if (mPendingBroadcast != null) { 1483 mPendingBroadcast.dump(pw, " ", sdf); 1484 } else { 1485 pw.println(" (null)"); 1486 } 1487 needSep = true; 1488 } 1489 } 1490 1491 int i; 1492 boolean printed = false; 1493 1494 i = -1; 1495 int lastIndex = mHistoryNext; 1496 int ringIndex = lastIndex; 1497 do { 1498 // increasing index = more recent entry, and we want to print the most 1499 // recent first and work backwards, so we roll through the ring backwards. 1500 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY); 1501 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1502 if (r == null) { 1503 continue; 1504 } 1505 1506 i++; // genuine record of some sort even if we're filtering it out 1507 if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) { 1508 continue; 1509 } 1510 if (!printed) { 1511 if (needSep) { 1512 pw.println(); 1513 } 1514 needSep = true; 1515 pw.println(" Historical broadcasts [" + mQueueName + "]:"); 1516 printed = true; 1517 } 1518 if (dumpAll) { 1519 pw.print(" Historical Broadcast " + mQueueName + " #"); 1520 pw.print(i); pw.println(":"); 1521 r.dump(pw, " ", sdf); 1522 } else { 1523 pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r); 1524 pw.print(" "); 1525 pw.println(r.intent.toShortString(false, true, true, false)); 1526 if (r.targetComp != null && r.targetComp != r.intent.getComponent()) { 1527 pw.print(" targetComp: "); pw.println(r.targetComp.toShortString()); 1528 } 1529 Bundle bundle = r.intent.getExtras(); 1530 if (bundle != null) { 1531 pw.print(" extras: "); pw.println(bundle.toString()); 1532 } 1533 } 1534 } while (ringIndex != lastIndex); 1535 1536 if (dumpPackage == null) { 1537 lastIndex = ringIndex = mSummaryHistoryNext; 1538 if (dumpAll) { 1539 printed = false; 1540 i = -1; 1541 } else { 1542 // roll over the 'i' full dumps that have already been issued 1543 for (int j = i; 1544 j > 0 && ringIndex != lastIndex;) { 1545 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1546 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1547 if (r == null) { 1548 continue; 1549 } 1550 j--; 1551 } 1552 } 1553 // done skipping; dump the remainder of the ring. 'i' is still the ordinal within 1554 // the overall broadcast history. 1555 do { 1556 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1557 Intent intent = mBroadcastSummaryHistory[ringIndex]; 1558 if (intent == null) { 1559 continue; 1560 } 1561 if (!printed) { 1562 if (needSep) { 1563 pw.println(); 1564 } 1565 needSep = true; 1566 pw.println(" Historical broadcasts summary [" + mQueueName + "]:"); 1567 printed = true; 1568 } 1569 if (!dumpAll && i >= 50) { 1570 pw.println(" ..."); 1571 break; 1572 } 1573 i++; 1574 pw.print(" #"); pw.print(i); pw.print(": "); 1575 pw.println(intent.toShortString(false, true, true, false)); 1576 pw.print(" "); 1577 TimeUtils.formatDuration(mSummaryHistoryDispatchTime[ringIndex] 1578 - mSummaryHistoryEnqueueTime[ringIndex], pw); 1579 pw.print(" dispatch "); 1580 TimeUtils.formatDuration(mSummaryHistoryFinishTime[ringIndex] 1581 - mSummaryHistoryDispatchTime[ringIndex], pw); 1582 pw.println(" finish"); 1583 pw.print(" enq="); 1584 pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex]))); 1585 pw.print(" disp="); 1586 pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex]))); 1587 pw.print(" fin="); 1588 pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex]))); 1589 Bundle bundle = intent.getExtras(); 1590 if (bundle != null) { 1591 pw.print(" extras: "); pw.println(bundle.toString()); 1592 } 1593 } while (ringIndex != lastIndex); 1594 } 1595 1596 return needSep; 1597 } 1598} 1599