BroadcastQueue.java revision 76e800928f46337a1b365b21bf752a44ffd1954d
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.Handler; 42import android.os.IBinder; 43import android.os.Looper; 44import android.os.Message; 45import android.os.Process; 46import android.os.RemoteException; 47import android.os.SystemClock; 48import android.os.UserHandle; 49import android.util.EventLog; 50import android.util.Slog; 51import android.util.TimeUtils; 52import com.android.server.DeviceIdleController; 53import com.android.server.LocalServices; 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.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 static 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 app.thread.scheduleRegisteredReceiver(receiver, intent, resultCode, 459 data, extras, ordered, sticky, sendingUser, app.repProcState); 460 } else { 461 // Application has died. Receiver doesn't exist. 462 throw new RemoteException("app.thread must not be null"); 463 } 464 } else { 465 receiver.performReceive(intent, resultCode, data, extras, ordered, 466 sticky, sendingUser); 467 } 468 } 469 470 private void deliverToRegisteredReceiverLocked(BroadcastRecord r, 471 BroadcastFilter filter, boolean ordered) { 472 boolean skip = false; 473 if (filter.requiredPermission != null) { 474 int perm = mService.checkComponentPermission(filter.requiredPermission, 475 r.callingPid, r.callingUid, -1, true); 476 if (perm != PackageManager.PERMISSION_GRANTED) { 477 Slog.w(TAG, "Permission Denial: broadcasting " 478 + r.intent.toString() 479 + " from " + r.callerPackage + " (pid=" 480 + r.callingPid + ", uid=" + r.callingUid + ")" 481 + " requires " + filter.requiredPermission 482 + " due to registered receiver " + filter); 483 skip = true; 484 } else { 485 final int opCode = AppOpsManager.permissionToOpCode(filter.requiredPermission); 486 if (opCode != AppOpsManager.OP_NONE 487 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 488 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 489 Slog.w(TAG, "Appop Denial: broadcasting " 490 + r.intent.toString() 491 + " from " + r.callerPackage + " (pid=" 492 + r.callingPid + ", uid=" + r.callingUid + ")" 493 + " requires appop " + AppOpsManager.permissionToOp( 494 filter.requiredPermission) 495 + " due to registered receiver " + filter); 496 skip = true; 497 } 498 } 499 } 500 if (!skip && r.requiredPermissions != null && r.requiredPermissions.length > 0) { 501 for (int i = 0; i < r.requiredPermissions.length; i++) { 502 String requiredPermission = r.requiredPermissions[i]; 503 int perm = mService.checkComponentPermission(requiredPermission, 504 filter.receiverList.pid, filter.receiverList.uid, -1, true); 505 if (perm != PackageManager.PERMISSION_GRANTED) { 506 Slog.w(TAG, "Permission Denial: receiving " 507 + r.intent.toString() 508 + " to " + filter.receiverList.app 509 + " (pid=" + filter.receiverList.pid 510 + ", uid=" + filter.receiverList.uid + ")" 511 + " requires " + requiredPermission 512 + " due to sender " + r.callerPackage 513 + " (uid " + r.callingUid + ")"); 514 skip = true; 515 break; 516 } 517 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 518 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 519 && mService.mAppOpsService.noteOperation(appOp, 520 filter.receiverList.uid, filter.packageName) 521 != AppOpsManager.MODE_ALLOWED) { 522 Slog.w(TAG, "Appop Denial: receiving " 523 + r.intent.toString() 524 + " to " + filter.receiverList.app 525 + " (pid=" + filter.receiverList.pid 526 + ", uid=" + filter.receiverList.uid + ")" 527 + " requires appop " + AppOpsManager.permissionToOp( 528 requiredPermission) 529 + " due to sender " + r.callerPackage 530 + " (uid " + r.callingUid + ")"); 531 skip = true; 532 break; 533 } 534 } 535 } 536 if (!skip && (r.requiredPermissions == null || r.requiredPermissions.length == 0)) { 537 int perm = mService.checkComponentPermission(null, 538 filter.receiverList.pid, filter.receiverList.uid, -1, true); 539 if (perm != PackageManager.PERMISSION_GRANTED) { 540 Slog.w(TAG, "Permission Denial: security check failed when receiving " 541 + r.intent.toString() 542 + " to " + filter.receiverList.app 543 + " (pid=" + filter.receiverList.pid 544 + ", uid=" + filter.receiverList.uid + ")" 545 + " due to sender " + r.callerPackage 546 + " (uid " + r.callingUid + ")"); 547 skip = true; 548 } 549 } 550 if (!skip && r.appOp != AppOpsManager.OP_NONE 551 && mService.mAppOpsService.noteOperation(r.appOp, 552 filter.receiverList.uid, filter.packageName) 553 != AppOpsManager.MODE_ALLOWED) { 554 Slog.w(TAG, "Appop Denial: receiving " 555 + r.intent.toString() 556 + " to " + filter.receiverList.app 557 + " (pid=" + filter.receiverList.pid 558 + ", uid=" + filter.receiverList.uid + ")" 559 + " requires appop " + AppOpsManager.opToName(r.appOp) 560 + " due to sender " + r.callerPackage 561 + " (uid " + r.callingUid + ")"); 562 skip = true; 563 } 564 if (!skip) { 565 final int allowed = mService.checkAllowBackgroundLocked(filter.receiverList.uid, 566 filter.packageName, -1); 567 if (allowed == ActivityManager.APP_START_MODE_DISABLED) { 568 Slog.w(TAG, "Background execution not allowed: receiving " 569 + r.intent 570 + " to " + filter.receiverList.app 571 + " (pid=" + filter.receiverList.pid 572 + ", uid=" + filter.receiverList.uid + ")"); 573 skip = true; 574 } 575 } 576 577 if (!mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 578 r.callingPid, r.resolvedType, filter.receiverList.uid)) { 579 return; 580 } 581 582 if (filter.receiverList.app == null || filter.receiverList.app.crashing) { 583 Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r 584 + " to " + filter.receiverList + ": process crashing"); 585 skip = true; 586 } 587 588 if (!skip) { 589 // If permissions need a review before any of the app components can run, we drop 590 // the broadcast and if the calling app is in the foreground and the broadcast is 591 // explicit we launch the review UI passing it a pending intent to send the skipped 592 // broadcast. 593 if (Build.PERMISSIONS_REVIEW_REQUIRED) { 594 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, filter.packageName, 595 filter.owningUserId)) { 596 return; 597 } 598 } 599 600 // If this is not being sent as an ordered broadcast, then we 601 // don't want to touch the fields that keep track of the current 602 // state of ordered broadcasts. 603 if (ordered) { 604 r.receiver = filter.receiverList.receiver.asBinder(); 605 r.curFilter = filter; 606 filter.receiverList.curBroadcast = r; 607 r.state = BroadcastRecord.CALL_IN_RECEIVE; 608 if (filter.receiverList.app != null) { 609 // Bump hosting application to no longer be in background 610 // scheduling class. Note that we can't do that if there 611 // isn't an app... but we can only be in that case for 612 // things that directly call the IActivityManager API, which 613 // are already core system stuff so don't matter for this. 614 r.curApp = filter.receiverList.app; 615 filter.receiverList.app.curReceiver = r; 616 mService.updateOomAdjLocked(r.curApp); 617 } 618 } 619 try { 620 if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST, 621 "Delivering to " + filter + " : " + r); 622 performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver, 623 new Intent(r.intent), r.resultCode, r.resultData, 624 r.resultExtras, r.ordered, r.initialSticky, r.userId); 625 if (ordered) { 626 r.state = BroadcastRecord.CALL_DONE_RECEIVE; 627 } 628 } catch (RemoteException e) { 629 Slog.w(TAG, "Failure sending broadcast " + r.intent, e); 630 if (ordered) { 631 r.receiver = null; 632 r.curFilter = null; 633 filter.receiverList.curBroadcast = null; 634 if (filter.receiverList.app != null) { 635 filter.receiverList.app.curReceiver = null; 636 } 637 } 638 } 639 } 640 } 641 642 private boolean requestStartTargetPermissionsReviewIfNeededLocked( 643 BroadcastRecord receiverRecord, String receivingPackageName, 644 final int receivingUserId) { 645 if (!mService.getPackageManagerInternalLocked().isPermissionsReviewRequired( 646 receivingPackageName, receivingUserId)) { 647 return true; 648 } 649 650 final boolean callerForeground = receiverRecord.callerApp != null 651 ? receiverRecord.callerApp.setSchedGroup != Process.THREAD_GROUP_BG_NONINTERACTIVE 652 : true; 653 654 // Show a permission review UI only for explicit broadcast from a foreground app 655 if (callerForeground && receiverRecord.intent.getComponent() != null) { 656 IIntentSender target = mService.getIntentSenderLocked( 657 ActivityManager.INTENT_SENDER_BROADCAST, receiverRecord.callerPackage, 658 receiverRecord.callingUid, receiverRecord.userId, null, null, 0, 659 new Intent[]{receiverRecord.intent}, 660 new String[]{receiverRecord.intent.resolveType(mService.mContext 661 .getContentResolver())}, 662 PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT 663 | PendingIntent.FLAG_IMMUTABLE, null); 664 665 final Intent intent = new Intent(Intent.ACTION_REVIEW_PERMISSIONS); 666 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK 667 | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 668 intent.putExtra(Intent.EXTRA_PACKAGE_NAME, receivingPackageName); 669 intent.putExtra(Intent.EXTRA_INTENT, new IntentSender(target)); 670 671 if (DEBUG_PERMISSIONS_REVIEW) { 672 Slog.i(TAG, "u" + receivingUserId + " Launching permission review for package " 673 + receivingPackageName); 674 } 675 676 mHandler.post(new Runnable() { 677 @Override 678 public void run() { 679 mService.mContext.startActivityAsUser(intent, new UserHandle(receivingUserId)); 680 } 681 }); 682 } else { 683 Slog.w(TAG, "u" + receivingUserId + " Receiving a broadcast in package" 684 + receivingPackageName + " requires a permissions review"); 685 } 686 687 return false; 688 } 689 690 final void scheduleTempWhitelistLocked(int uid, long duration, BroadcastRecord r) { 691 if (duration > Integer.MAX_VALUE) { 692 duration = Integer.MAX_VALUE; 693 } 694 // XXX ideally we should pause the broadcast until everything behind this is done, 695 // or else we will likely start dispatching the broadcast before we have opened 696 // access to the app (there is a lot of asynchronicity behind this). It is probably 697 // not that big a deal, however, because the main purpose here is to allow apps 698 // to hold wake locks, and they will be able to acquire their wake lock immediately 699 // it just won't be enabled until we get through this work. 700 StringBuilder b = new StringBuilder(); 701 b.append("broadcast:"); 702 UserHandle.formatUid(b, r.callingUid); 703 b.append(":"); 704 if (r.intent.getAction() != null) { 705 b.append(r.intent.getAction()); 706 } else if (r.intent.getComponent() != null) { 707 b.append(r.intent.getComponent().flattenToShortString()); 708 } else if (r.intent.getData() != null) { 709 b.append(r.intent.getData()); 710 } 711 mHandler.obtainMessage(SCHEDULE_TEMP_WHITELIST_MSG, uid, (int)duration, b.toString()) 712 .sendToTarget(); 713 } 714 715 final void processNextBroadcast(boolean fromMsg) { 716 synchronized(mService) { 717 BroadcastRecord r; 718 719 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast [" 720 + mQueueName + "]: " 721 + mParallelBroadcasts.size() + " broadcasts, " 722 + mOrderedBroadcasts.size() + " ordered broadcasts"); 723 724 mService.updateCpuStats(); 725 726 if (fromMsg) { 727 mBroadcastsScheduled = false; 728 } 729 730 // First, deliver any non-serialized broadcasts right away. 731 while (mParallelBroadcasts.size() > 0) { 732 r = mParallelBroadcasts.remove(0); 733 r.dispatchTime = SystemClock.uptimeMillis(); 734 r.dispatchClockTime = System.currentTimeMillis(); 735 final int N = r.receivers.size(); 736 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast [" 737 + mQueueName + "] " + r); 738 for (int i=0; i<N; i++) { 739 Object target = r.receivers.get(i); 740 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 741 "Delivering non-ordered on [" + mQueueName + "] to registered " 742 + target + ": " + r); 743 deliverToRegisteredReceiverLocked(r, (BroadcastFilter)target, false); 744 } 745 addBroadcastToHistoryLocked(r); 746 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast [" 747 + mQueueName + "] " + r); 748 } 749 750 // Now take care of the next serialized one... 751 752 // If we are waiting for a process to come up to handle the next 753 // broadcast, then do nothing at this point. Just in case, we 754 // check that the process we're waiting for still exists. 755 if (mPendingBroadcast != null) { 756 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 757 "processNextBroadcast [" + mQueueName + "]: waiting for " 758 + mPendingBroadcast.curApp); 759 760 boolean isDead; 761 synchronized (mService.mPidsSelfLocked) { 762 ProcessRecord proc = mService.mPidsSelfLocked.get(mPendingBroadcast.curApp.pid); 763 isDead = proc == null || proc.crashing; 764 } 765 if (!isDead) { 766 // It's still alive, so keep waiting 767 return; 768 } else { 769 Slog.w(TAG, "pending app [" 770 + mQueueName + "]" + mPendingBroadcast.curApp 771 + " died before responding to broadcast"); 772 mPendingBroadcast.state = BroadcastRecord.IDLE; 773 mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex; 774 mPendingBroadcast = null; 775 } 776 } 777 778 boolean looped = false; 779 780 do { 781 if (mOrderedBroadcasts.size() == 0) { 782 // No more broadcasts pending, so all done! 783 mService.scheduleAppGcsLocked(); 784 if (looped) { 785 // If we had finished the last ordered broadcast, then 786 // make sure all processes have correct oom and sched 787 // adjustments. 788 mService.updateOomAdjLocked(); 789 } 790 return; 791 } 792 r = mOrderedBroadcasts.get(0); 793 boolean forceReceive = false; 794 795 // Ensure that even if something goes awry with the timeout 796 // detection, we catch "hung" broadcasts here, discard them, 797 // and continue to make progress. 798 // 799 // This is only done if the system is ready so that PRE_BOOT_COMPLETED 800 // receivers don't get executed with timeouts. They're intended for 801 // one time heavy lifting after system upgrades and can take 802 // significant amounts of time. 803 int numReceivers = (r.receivers != null) ? r.receivers.size() : 0; 804 if (mService.mProcessesReady && r.dispatchTime > 0) { 805 long now = SystemClock.uptimeMillis(); 806 if ((numReceivers > 0) && 807 (now > r.dispatchTime + (2*mTimeoutPeriod*numReceivers))) { 808 Slog.w(TAG, "Hung broadcast [" 809 + mQueueName + "] discarded after timeout failure:" 810 + " now=" + now 811 + " dispatchTime=" + r.dispatchTime 812 + " startTime=" + r.receiverTime 813 + " intent=" + r.intent 814 + " numReceivers=" + numReceivers 815 + " nextReceiver=" + r.nextReceiver 816 + " state=" + r.state); 817 broadcastTimeoutLocked(false); // forcibly finish this broadcast 818 forceReceive = true; 819 r.state = BroadcastRecord.IDLE; 820 } 821 } 822 823 if (r.state != BroadcastRecord.IDLE) { 824 if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST, 825 "processNextBroadcast(" 826 + mQueueName + ") called when not idle (state=" 827 + r.state + ")"); 828 return; 829 } 830 831 if (r.receivers == null || r.nextReceiver >= numReceivers 832 || r.resultAbort || forceReceive) { 833 // No more receivers for this broadcast! Send the final 834 // result if requested... 835 if (r.resultTo != null) { 836 try { 837 if (DEBUG_BROADCAST) Slog.i(TAG_BROADCAST, 838 "Finishing broadcast [" + mQueueName + "] " 839 + r.intent.getAction() + " app=" + r.callerApp); 840 performReceiveLocked(r.callerApp, r.resultTo, 841 new Intent(r.intent), r.resultCode, 842 r.resultData, r.resultExtras, false, false, r.userId); 843 // Set this to null so that the reference 844 // (local and remote) isn't kept in the mBroadcastHistory. 845 r.resultTo = null; 846 } catch (RemoteException e) { 847 r.resultTo = null; 848 Slog.w(TAG, "Failure [" 849 + mQueueName + "] sending broadcast result of " 850 + r.intent, e); 851 } 852 } 853 854 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG"); 855 cancelBroadcastTimeoutLocked(); 856 857 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, 858 "Finished with ordered broadcast " + r); 859 860 // ... and on to the next... 861 addBroadcastToHistoryLocked(r); 862 mOrderedBroadcasts.remove(0); 863 r = null; 864 looped = true; 865 continue; 866 } 867 } while (r == null); 868 869 // Get the next receiver... 870 int recIdx = r.nextReceiver++; 871 872 // Keep track of when this receiver started, and make sure there 873 // is a timeout message pending to kill it if need be. 874 r.receiverTime = SystemClock.uptimeMillis(); 875 if (recIdx == 0) { 876 r.dispatchTime = r.receiverTime; 877 r.dispatchClockTime = System.currentTimeMillis(); 878 if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast [" 879 + mQueueName + "] " + r); 880 } 881 if (! mPendingBroadcastTimeoutMessage) { 882 long timeoutTime = r.receiverTime + mTimeoutPeriod; 883 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 884 "Submitting BROADCAST_TIMEOUT_MSG [" 885 + mQueueName + "] for " + r + " at " + timeoutTime); 886 setBroadcastTimeoutLocked(timeoutTime); 887 } 888 889 final BroadcastOptions brOptions = r.options; 890 final Object nextReceiver = r.receivers.get(recIdx); 891 892 if (nextReceiver instanceof BroadcastFilter) { 893 // Simple case: this is a registered receiver who gets 894 // a direct call. 895 BroadcastFilter filter = (BroadcastFilter)nextReceiver; 896 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 897 "Delivering ordered [" 898 + mQueueName + "] to registered " 899 + filter + ": " + r); 900 deliverToRegisteredReceiverLocked(r, filter, r.ordered); 901 if (r.receiver == null || !r.ordered) { 902 // The receiver has already finished, so schedule to 903 // process the next one. 904 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing [" 905 + mQueueName + "]: ordered=" 906 + r.ordered + " receiver=" + r.receiver); 907 r.state = BroadcastRecord.IDLE; 908 scheduleBroadcastsLocked(); 909 } else { 910 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 911 scheduleTempWhitelistLocked(filter.owningUid, 912 brOptions.getTemporaryAppWhitelistDuration(), r); 913 } 914 } 915 return; 916 } 917 918 // Hard case: need to instantiate the receiver, possibly 919 // starting its application process to host it. 920 921 ResolveInfo info = 922 (ResolveInfo)nextReceiver; 923 ComponentName component = new ComponentName( 924 info.activityInfo.applicationInfo.packageName, 925 info.activityInfo.name); 926 927 boolean skip = false; 928 int perm = mService.checkComponentPermission(info.activityInfo.permission, 929 r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid, 930 info.activityInfo.exported); 931 if (perm != PackageManager.PERMISSION_GRANTED) { 932 if (!info.activityInfo.exported) { 933 Slog.w(TAG, "Permission Denial: broadcasting " 934 + r.intent.toString() 935 + " from " + r.callerPackage + " (pid=" + r.callingPid 936 + ", uid=" + r.callingUid + ")" 937 + " is not exported from uid " + info.activityInfo.applicationInfo.uid 938 + " due to receiver " + component.flattenToShortString()); 939 } else { 940 Slog.w(TAG, "Permission Denial: broadcasting " 941 + r.intent.toString() 942 + " from " + r.callerPackage + " (pid=" + r.callingPid 943 + ", uid=" + r.callingUid + ")" 944 + " requires " + info.activityInfo.permission 945 + " due to receiver " + component.flattenToShortString()); 946 } 947 skip = true; 948 } else if (info.activityInfo.permission != null) { 949 final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission); 950 if (opCode != AppOpsManager.OP_NONE 951 && mService.mAppOpsService.noteOperation(opCode, r.callingUid, 952 r.callerPackage) != AppOpsManager.MODE_ALLOWED) { 953 Slog.w(TAG, "Appop Denial: broadcasting " 954 + r.intent.toString() 955 + " from " + r.callerPackage + " (pid=" 956 + r.callingPid + ", uid=" + r.callingUid + ")" 957 + " requires appop " + AppOpsManager.permissionToOp( 958 info.activityInfo.permission) 959 + " due to registered receiver " 960 + component.flattenToShortString()); 961 skip = true; 962 } 963 } 964 if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID && 965 r.requiredPermissions != null && r.requiredPermissions.length > 0) { 966 for (int i = 0; i < r.requiredPermissions.length; i++) { 967 String requiredPermission = r.requiredPermissions[i]; 968 try { 969 perm = AppGlobals.getPackageManager(). 970 checkPermission(requiredPermission, 971 info.activityInfo.applicationInfo.packageName, 972 UserHandle 973 .getUserId(info.activityInfo.applicationInfo.uid)); 974 } catch (RemoteException e) { 975 perm = PackageManager.PERMISSION_DENIED; 976 } 977 if (perm != PackageManager.PERMISSION_GRANTED) { 978 Slog.w(TAG, "Permission Denial: receiving " 979 + r.intent + " to " 980 + component.flattenToShortString() 981 + " requires " + requiredPermission 982 + " due to sender " + r.callerPackage 983 + " (uid " + r.callingUid + ")"); 984 skip = true; 985 break; 986 } 987 int appOp = AppOpsManager.permissionToOpCode(requiredPermission); 988 if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp 989 && mService.mAppOpsService.noteOperation(appOp, 990 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 991 != AppOpsManager.MODE_ALLOWED) { 992 Slog.w(TAG, "Appop Denial: receiving " 993 + r.intent + " to " 994 + component.flattenToShortString() 995 + " requires appop " + AppOpsManager.permissionToOp( 996 requiredPermission) 997 + " due to sender " + r.callerPackage 998 + " (uid " + r.callingUid + ")"); 999 skip = true; 1000 break; 1001 } 1002 } 1003 } 1004 if (!skip && r.appOp != AppOpsManager.OP_NONE 1005 && mService.mAppOpsService.noteOperation(r.appOp, 1006 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName) 1007 != AppOpsManager.MODE_ALLOWED) { 1008 Slog.w(TAG, "Appop Denial: receiving " 1009 + r.intent + " to " 1010 + component.flattenToShortString() 1011 + " requires appop " + AppOpsManager.opToName(r.appOp) 1012 + " due to sender " + r.callerPackage 1013 + " (uid " + r.callingUid + ")"); 1014 skip = true; 1015 } 1016 if (!skip) { 1017 skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid, 1018 r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid); 1019 } 1020 boolean isSingleton = false; 1021 try { 1022 isSingleton = mService.isSingleton(info.activityInfo.processName, 1023 info.activityInfo.applicationInfo, 1024 info.activityInfo.name, info.activityInfo.flags); 1025 } catch (SecurityException e) { 1026 Slog.w(TAG, e.getMessage()); 1027 skip = true; 1028 } 1029 if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) { 1030 if (ActivityManager.checkUidPermission( 1031 android.Manifest.permission.INTERACT_ACROSS_USERS, 1032 info.activityInfo.applicationInfo.uid) 1033 != PackageManager.PERMISSION_GRANTED) { 1034 Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString() 1035 + " requests FLAG_SINGLE_USER, but app does not hold " 1036 + android.Manifest.permission.INTERACT_ACROSS_USERS); 1037 skip = true; 1038 } 1039 } 1040 if (r.curApp != null && r.curApp.crashing) { 1041 // If the target process is crashing, just skip it. 1042 Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r 1043 + " to " + r.curApp + ": process crashing"); 1044 skip = true; 1045 } 1046 if (!skip) { 1047 boolean isAvailable = false; 1048 try { 1049 isAvailable = AppGlobals.getPackageManager().isPackageAvailable( 1050 info.activityInfo.packageName, 1051 UserHandle.getUserId(info.activityInfo.applicationInfo.uid)); 1052 } catch (Exception e) { 1053 // all such failures mean we skip this receiver 1054 Slog.w(TAG, "Exception getting recipient info for " 1055 + info.activityInfo.packageName, e); 1056 } 1057 if (!isAvailable) { 1058 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1059 "Skipping delivery to " + info.activityInfo.packageName + " / " 1060 + info.activityInfo.applicationInfo.uid 1061 + " : package no longer available"); 1062 skip = true; 1063 } 1064 } 1065 1066 // If permissions need a review before any of the app components can run, we drop 1067 // the broadcast and if the calling app is in the foreground and the broadcast is 1068 // explicit we launch the review UI passing it a pending intent to send the skipped 1069 // broadcast. 1070 if (Build.PERMISSIONS_REVIEW_REQUIRED && !skip) { 1071 if (!requestStartTargetPermissionsReviewIfNeededLocked(r, 1072 info.activityInfo.packageName, UserHandle.getUserId( 1073 info.activityInfo.applicationInfo.uid))) { 1074 skip = true; 1075 } 1076 } 1077 1078 // This is safe to do even if we are skipping the broadcast, and we need 1079 // this information now to evaluate whether it is going to be allowed to run. 1080 final int receiverUid = info.activityInfo.applicationInfo.uid; 1081 // If it's a singleton, it needs to be the same app or a special app 1082 if (r.callingUid != Process.SYSTEM_UID && isSingleton 1083 && mService.isValidSingletonCall(r.callingUid, receiverUid)) { 1084 info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0); 1085 } 1086 String targetProcess = info.activityInfo.processName; 1087 ProcessRecord app = mService.getProcessRecordLocked(targetProcess, 1088 info.activityInfo.applicationInfo.uid, false); 1089 1090 if (!skip) { 1091 final int allowed = mService.checkAllowBackgroundLocked( 1092 info.activityInfo.applicationInfo.uid, info.activityInfo.packageName, -1); 1093 if (allowed != ActivityManager.APP_START_MODE_NORMAL) { 1094 // We won't allow this receiver to be launched if the app has been 1095 // completely disabled from launches, or it is delayed and the broadcast 1096 // was not explicitly sent to it and this would result in a new process 1097 // for it being created. 1098 if (allowed == ActivityManager.APP_START_MODE_DISABLED) { 1099 Slog.w(TAG, "Background execution disabled: receiving " 1100 + r.intent + " to " 1101 + component.flattenToShortString()); 1102 skip = true; 1103 } 1104 if (((r.intent.getFlags()&Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND) != 0) 1105 || (r.intent.getComponent() == null 1106 && r.intent.getPackage() == null && app == null 1107 && ((r.intent.getFlags() 1108 & Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND) == 0))) { 1109 Slog.w(TAG, "Background execution not allowed: receiving " 1110 + r.intent + " to " 1111 + component.flattenToShortString()); 1112 skip = true; 1113 } 1114 } 1115 } 1116 1117 if (skip) { 1118 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1119 "Skipping delivery of ordered [" + mQueueName + "] " 1120 + r + " for whatever reason"); 1121 r.receiver = null; 1122 r.curFilter = null; 1123 r.state = BroadcastRecord.IDLE; 1124 scheduleBroadcastsLocked(); 1125 return; 1126 } 1127 1128 r.state = BroadcastRecord.APP_RECEIVE; 1129 r.curComponent = component; 1130 r.curReceiver = info.activityInfo; 1131 if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) { 1132 Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, " 1133 + info.activityInfo + ", callingUid = " + r.callingUid + ", uid = " 1134 + info.activityInfo.applicationInfo.uid); 1135 } 1136 1137 if (brOptions != null && brOptions.getTemporaryAppWhitelistDuration() > 0) { 1138 scheduleTempWhitelistLocked(receiverUid, 1139 brOptions.getTemporaryAppWhitelistDuration(), r); 1140 } 1141 1142 // Broadcast is being executed, its package can't be stopped. 1143 try { 1144 AppGlobals.getPackageManager().setPackageStoppedState( 1145 r.curComponent.getPackageName(), false, UserHandle.getUserId(r.callingUid)); 1146 } catch (RemoteException e) { 1147 } catch (IllegalArgumentException e) { 1148 Slog.w(TAG, "Failed trying to unstop package " 1149 + r.curComponent.getPackageName() + ": " + e); 1150 } 1151 1152 // Is this receiver's application already running? 1153 if (app != null && app.thread != null) { 1154 try { 1155 app.addPackage(info.activityInfo.packageName, 1156 info.activityInfo.applicationInfo.versionCode, mService.mProcessStats); 1157 processCurBroadcastLocked(r, app); 1158 return; 1159 } catch (RemoteException e) { 1160 Slog.w(TAG, "Exception when sending broadcast to " 1161 + r.curComponent, e); 1162 } catch (RuntimeException e) { 1163 Slog.wtf(TAG, "Failed sending broadcast to " 1164 + r.curComponent + " with " + r.intent, e); 1165 // If some unexpected exception happened, just skip 1166 // this broadcast. At this point we are not in the call 1167 // from a client, so throwing an exception out from here 1168 // will crash the entire system instead of just whoever 1169 // sent the broadcast. 1170 logBroadcastReceiverDiscardLocked(r); 1171 finishReceiverLocked(r, r.resultCode, r.resultData, 1172 r.resultExtras, r.resultAbort, false); 1173 scheduleBroadcastsLocked(); 1174 // We need to reset the state if we failed to start the receiver. 1175 r.state = BroadcastRecord.IDLE; 1176 return; 1177 } 1178 1179 // If a dead object exception was thrown -- fall through to 1180 // restart the application. 1181 } 1182 1183 // Not running -- get it started, to be executed when the app comes up. 1184 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1185 "Need to start app [" 1186 + mQueueName + "] " + targetProcess + " for broadcast " + r); 1187 if ((r.curApp=mService.startProcessLocked(targetProcess, 1188 info.activityInfo.applicationInfo, true, 1189 r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND, 1190 "broadcast", r.curComponent, 1191 (r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false)) 1192 == null) { 1193 // Ah, this recipient is unavailable. Finish it if necessary, 1194 // and mark the broadcast record as ready for the next. 1195 Slog.w(TAG, "Unable to launch app " 1196 + info.activityInfo.applicationInfo.packageName + "/" 1197 + info.activityInfo.applicationInfo.uid + " for broadcast " 1198 + r.intent + ": process is bad"); 1199 logBroadcastReceiverDiscardLocked(r); 1200 finishReceiverLocked(r, r.resultCode, r.resultData, 1201 r.resultExtras, r.resultAbort, false); 1202 scheduleBroadcastsLocked(); 1203 r.state = BroadcastRecord.IDLE; 1204 return; 1205 } 1206 1207 mPendingBroadcast = r; 1208 mPendingBroadcastRecvIndex = recIdx; 1209 } 1210 } 1211 1212 final void setBroadcastTimeoutLocked(long timeoutTime) { 1213 if (! mPendingBroadcastTimeoutMessage) { 1214 Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this); 1215 mHandler.sendMessageAtTime(msg, timeoutTime); 1216 mPendingBroadcastTimeoutMessage = true; 1217 } 1218 } 1219 1220 final void cancelBroadcastTimeoutLocked() { 1221 if (mPendingBroadcastTimeoutMessage) { 1222 mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this); 1223 mPendingBroadcastTimeoutMessage = false; 1224 } 1225 } 1226 1227 final void broadcastTimeoutLocked(boolean fromMsg) { 1228 if (fromMsg) { 1229 mPendingBroadcastTimeoutMessage = false; 1230 } 1231 1232 if (mOrderedBroadcasts.size() == 0) { 1233 return; 1234 } 1235 1236 long now = SystemClock.uptimeMillis(); 1237 BroadcastRecord r = mOrderedBroadcasts.get(0); 1238 if (fromMsg) { 1239 if (mService.mDidDexOpt) { 1240 // Delay timeouts until dexopt finishes. 1241 mService.mDidDexOpt = false; 1242 long timeoutTime = SystemClock.uptimeMillis() + mTimeoutPeriod; 1243 setBroadcastTimeoutLocked(timeoutTime); 1244 return; 1245 } 1246 if (!mService.mProcessesReady) { 1247 // Only process broadcast timeouts if the system is ready. That way 1248 // PRE_BOOT_COMPLETED broadcasts can't timeout as they are intended 1249 // to do heavy lifting for system up. 1250 return; 1251 } 1252 1253 long timeoutTime = r.receiverTime + mTimeoutPeriod; 1254 if (timeoutTime > now) { 1255 // We can observe premature timeouts because we do not cancel and reset the 1256 // broadcast timeout message after each receiver finishes. Instead, we set up 1257 // an initial timeout then kick it down the road a little further as needed 1258 // when it expires. 1259 if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, 1260 "Premature timeout [" 1261 + mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for " 1262 + timeoutTime); 1263 setBroadcastTimeoutLocked(timeoutTime); 1264 return; 1265 } 1266 } 1267 1268 BroadcastRecord br = mOrderedBroadcasts.get(0); 1269 if (br.state == BroadcastRecord.WAITING_SERVICES) { 1270 // In this case the broadcast had already finished, but we had decided to wait 1271 // for started services to finish as well before going on. So if we have actually 1272 // waited long enough time timeout the broadcast, let's give up on the whole thing 1273 // and just move on to the next. 1274 Slog.i(TAG, "Waited long enough for: " + (br.curComponent != null 1275 ? br.curComponent.flattenToShortString() : "(null)")); 1276 br.curComponent = null; 1277 br.state = BroadcastRecord.IDLE; 1278 processNextBroadcast(false); 1279 return; 1280 } 1281 1282 Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r. receiver 1283 + ", started " + (now - r.receiverTime) + "ms ago"); 1284 r.receiverTime = now; 1285 r.anrCount++; 1286 1287 // Current receiver has passed its expiration date. 1288 if (r.nextReceiver <= 0) { 1289 Slog.w(TAG, "Timeout on receiver with nextReceiver <= 0"); 1290 return; 1291 } 1292 1293 ProcessRecord app = null; 1294 String anrMessage = null; 1295 1296 Object curReceiver = r.receivers.get(r.nextReceiver-1); 1297 Slog.w(TAG, "Receiver during timeout: " + curReceiver); 1298 logBroadcastReceiverDiscardLocked(r); 1299 if (curReceiver instanceof BroadcastFilter) { 1300 BroadcastFilter bf = (BroadcastFilter)curReceiver; 1301 if (bf.receiverList.pid != 0 1302 && bf.receiverList.pid != ActivityManagerService.MY_PID) { 1303 synchronized (mService.mPidsSelfLocked) { 1304 app = mService.mPidsSelfLocked.get( 1305 bf.receiverList.pid); 1306 } 1307 } 1308 } else { 1309 app = r.curApp; 1310 } 1311 1312 if (app != null) { 1313 anrMessage = "Broadcast of " + r.intent.toString(); 1314 } 1315 1316 if (mPendingBroadcast == r) { 1317 mPendingBroadcast = null; 1318 } 1319 1320 // Move on to the next receiver. 1321 finishReceiverLocked(r, r.resultCode, r.resultData, 1322 r.resultExtras, r.resultAbort, false); 1323 scheduleBroadcastsLocked(); 1324 1325 if (anrMessage != null) { 1326 // Post the ANR to the handler since we do not want to process ANRs while 1327 // potentially holding our lock. 1328 mHandler.post(new AppNotResponding(app, anrMessage)); 1329 } 1330 } 1331 1332 private final int ringAdvance(int x, final int increment, final int ringSize) { 1333 x += increment; 1334 if (x < 0) return (ringSize - 1); 1335 else if (x >= ringSize) return 0; 1336 else return x; 1337 } 1338 1339 private final void addBroadcastToHistoryLocked(BroadcastRecord r) { 1340 if (r.callingUid < 0) { 1341 // This was from a registerReceiver() call; ignore it. 1342 return; 1343 } 1344 r.finishTime = SystemClock.uptimeMillis(); 1345 1346 mBroadcastHistory[mHistoryNext] = r; 1347 mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY); 1348 1349 mBroadcastSummaryHistory[mSummaryHistoryNext] = r.intent; 1350 mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = r.enqueueClockTime; 1351 mSummaryHistoryDispatchTime[mSummaryHistoryNext] = r.dispatchClockTime; 1352 mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis(); 1353 mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY); 1354 } 1355 1356 boolean cleanupDisabledPackageReceiversLocked( 1357 String packageName, Set<String> filterByClasses, int userId, boolean doit) { 1358 boolean didSomething = false; 1359 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1360 didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1361 packageName, filterByClasses, userId, doit); 1362 if (!doit && didSomething) { 1363 return true; 1364 } 1365 } 1366 1367 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1368 didSomething |= mOrderedBroadcasts.get(i).cleanupDisabledPackageReceiversLocked( 1369 packageName, filterByClasses, userId, doit); 1370 if (!doit && didSomething) { 1371 return true; 1372 } 1373 } 1374 1375 return didSomething; 1376 } 1377 1378 final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) { 1379 final int logIndex = r.nextReceiver - 1; 1380 if (logIndex >= 0 && logIndex < r.receivers.size()) { 1381 Object curReceiver = r.receivers.get(logIndex); 1382 if (curReceiver instanceof BroadcastFilter) { 1383 BroadcastFilter bf = (BroadcastFilter) curReceiver; 1384 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER, 1385 bf.owningUserId, System.identityHashCode(r), 1386 r.intent.getAction(), logIndex, System.identityHashCode(bf)); 1387 } else { 1388 ResolveInfo ri = (ResolveInfo) curReceiver; 1389 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1390 UserHandle.getUserId(ri.activityInfo.applicationInfo.uid), 1391 System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString()); 1392 } 1393 } else { 1394 if (logIndex < 0) Slog.w(TAG, 1395 "Discarding broadcast before first receiver is invoked: " + r); 1396 EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP, 1397 -1, System.identityHashCode(r), 1398 r.intent.getAction(), 1399 r.nextReceiver, 1400 "NONE"); 1401 } 1402 } 1403 1404 final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args, 1405 int opti, boolean dumpAll, String dumpPackage, boolean needSep) { 1406 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 1407 if (mParallelBroadcasts.size() > 0 || mOrderedBroadcasts.size() > 0 1408 || mPendingBroadcast != null) { 1409 boolean printed = false; 1410 for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) { 1411 BroadcastRecord br = mParallelBroadcasts.get(i); 1412 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1413 continue; 1414 } 1415 if (!printed) { 1416 if (needSep) { 1417 pw.println(); 1418 } 1419 needSep = true; 1420 printed = true; 1421 pw.println(" Active broadcasts [" + mQueueName + "]:"); 1422 } 1423 pw.println(" Active Broadcast " + mQueueName + " #" + i + ":"); 1424 br.dump(pw, " ", sdf); 1425 } 1426 printed = false; 1427 needSep = true; 1428 for (int i = mOrderedBroadcasts.size() - 1; i >= 0; i--) { 1429 BroadcastRecord br = mOrderedBroadcasts.get(i); 1430 if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) { 1431 continue; 1432 } 1433 if (!printed) { 1434 if (needSep) { 1435 pw.println(); 1436 } 1437 needSep = true; 1438 printed = true; 1439 pw.println(" Active ordered broadcasts [" + mQueueName + "]:"); 1440 } 1441 pw.println(" Active Ordered Broadcast " + mQueueName + " #" + i + ":"); 1442 mOrderedBroadcasts.get(i).dump(pw, " ", sdf); 1443 } 1444 if (dumpPackage == null || (mPendingBroadcast != null 1445 && dumpPackage.equals(mPendingBroadcast.callerPackage))) { 1446 if (needSep) { 1447 pw.println(); 1448 } 1449 pw.println(" Pending broadcast [" + mQueueName + "]:"); 1450 if (mPendingBroadcast != null) { 1451 mPendingBroadcast.dump(pw, " ", sdf); 1452 } else { 1453 pw.println(" (null)"); 1454 } 1455 needSep = true; 1456 } 1457 } 1458 1459 int i; 1460 boolean printed = false; 1461 1462 i = -1; 1463 int lastIndex = mHistoryNext; 1464 int ringIndex = lastIndex; 1465 do { 1466 // increasing index = more recent entry, and we want to print the most 1467 // recent first and work backwards, so we roll through the ring backwards. 1468 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY); 1469 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1470 if (r == null) { 1471 continue; 1472 } 1473 1474 i++; // genuine record of some sort even if we're filtering it out 1475 if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) { 1476 continue; 1477 } 1478 if (!printed) { 1479 if (needSep) { 1480 pw.println(); 1481 } 1482 needSep = true; 1483 pw.println(" Historical broadcasts [" + mQueueName + "]:"); 1484 printed = true; 1485 } 1486 if (dumpAll) { 1487 pw.print(" Historical Broadcast " + mQueueName + " #"); 1488 pw.print(i); pw.println(":"); 1489 r.dump(pw, " ", sdf); 1490 } else { 1491 pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r); 1492 pw.print(" "); 1493 pw.println(r.intent.toShortString(false, true, true, false)); 1494 if (r.targetComp != null && r.targetComp != r.intent.getComponent()) { 1495 pw.print(" targetComp: "); pw.println(r.targetComp.toShortString()); 1496 } 1497 Bundle bundle = r.intent.getExtras(); 1498 if (bundle != null) { 1499 pw.print(" extras: "); pw.println(bundle.toString()); 1500 } 1501 } 1502 } while (ringIndex != lastIndex); 1503 1504 if (dumpPackage == null) { 1505 lastIndex = ringIndex = mSummaryHistoryNext; 1506 if (dumpAll) { 1507 printed = false; 1508 i = -1; 1509 } else { 1510 // roll over the 'i' full dumps that have already been issued 1511 for (int j = i; 1512 j > 0 && ringIndex != lastIndex;) { 1513 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1514 BroadcastRecord r = mBroadcastHistory[ringIndex]; 1515 if (r == null) { 1516 continue; 1517 } 1518 j--; 1519 } 1520 } 1521 // done skipping; dump the remainder of the ring. 'i' is still the ordinal within 1522 // the overall broadcast history. 1523 do { 1524 ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY); 1525 Intent intent = mBroadcastSummaryHistory[ringIndex]; 1526 if (intent == null) { 1527 continue; 1528 } 1529 if (!printed) { 1530 if (needSep) { 1531 pw.println(); 1532 } 1533 needSep = true; 1534 pw.println(" Historical broadcasts summary [" + mQueueName + "]:"); 1535 printed = true; 1536 } 1537 if (!dumpAll && i >= 50) { 1538 pw.println(" ..."); 1539 break; 1540 } 1541 i++; 1542 pw.print(" #"); pw.print(i); pw.print(": "); 1543 pw.println(intent.toShortString(false, true, true, false)); 1544 pw.print(" "); 1545 TimeUtils.formatDuration(mSummaryHistoryDispatchTime[ringIndex] 1546 - mSummaryHistoryEnqueueTime[ringIndex], pw); 1547 pw.print(" dispatch "); 1548 TimeUtils.formatDuration(mSummaryHistoryFinishTime[ringIndex] 1549 - mSummaryHistoryDispatchTime[ringIndex], pw); 1550 pw.println(" finish"); 1551 pw.print(" enq="); 1552 pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex]))); 1553 pw.print(" disp="); 1554 pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex]))); 1555 pw.print(" fin="); 1556 pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex]))); 1557 Bundle bundle = intent.getExtras(); 1558 if (bundle != null) { 1559 pw.print(" extras: "); pw.println(bundle.toString()); 1560 } 1561 } while (ringIndex != lastIndex); 1562 } 1563 1564 return needSep; 1565 } 1566} 1567