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android / platform / frameworks / base / a3bf26d6bc71 / . / services / core / java / com / android / server / am / BroadcastQueue.java
blob: 6daf7099fd4461e0cfd8bf1e9b69877420c3f690 [file] [log] [blame]
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.am;
import static android.os.Process.ZYGOTE_POLICY_FLAG_EMPTY;
import static android.os.Process.ZYGOTE_POLICY_FLAG_LATENCY_SENSITIVE;
import static android.text.TextUtils.formatSimple;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_DEFERRAL;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_LIGHT;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_MU;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PERMISSIONS_REVIEW;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BROADCAST;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_MU;
import android.annotation.Nullable;
import android.app.ActivityManager;
import android.app.AppGlobals;
import android.app.AppOpsManager;
import android.app.BroadcastOptions;
import android.app.IApplicationThread;
import android.app.PendingIntent;
import android.app.RemoteServiceException.CannotDeliverBroadcastException;
import android.app.usage.UsageEvents.Event;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.IIntentReceiver;
import android.content.IIntentSender;
import android.content.Intent;
import android.content.IntentSender;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PermissionInfo;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerExemptionManager.ReasonCode;
import android.os.PowerExemptionManager.TempAllowListType;
import android.os.Process;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.Trace;
import android.os.UserHandle;
import android.permission.IPermissionManager;
import android.text.TextUtils;
import android.util.EventLog;
import android.util.Slog;
import android.util.SparseIntArray;
import android.util.TimeUtils;
import android.util.proto.ProtoOutputStream;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.FrameworkStatsLog;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Set;
/**
* BROADCASTS
*
* We keep three broadcast queues and associated bookkeeping, one for those at
* foreground priority, and one for normal (background-priority) broadcasts, and one to
* offload special broadcasts that we know take a long time, such as BOOT_COMPLETED.
*/
public final class BroadcastQueue {
private static final String TAG = "BroadcastQueue";
private static final String TAG_MU = TAG + POSTFIX_MU;
private static final String TAG_BROADCAST = TAG + POSTFIX_BROADCAST;
static final int MAX_BROADCAST_HISTORY = ActivityManager.isLowRamDeviceStatic() ? 10 : 50;
static final int MAX_BROADCAST_SUMMARY_HISTORY
= ActivityManager.isLowRamDeviceStatic() ? 25 : 300;
final ActivityManagerService mService;
/**
* Behavioral parameters such as timeouts and deferral policy, tracking Settings
* for runtime configurability
*/
final BroadcastConstants mConstants;
/**
* Recognizable moniker for this queue
*/
final String mQueueName;
/**
* If true, we can delay broadcasts while waiting services to finish in the previous
* receiver's process.
*/
final boolean mDelayBehindServices;
/**
* Lists of all active broadcasts that are to be executed immediately
* (without waiting for another broadcast to finish). Currently this only
* contains broadcasts to registered receivers, to avoid spinning up
* a bunch of processes to execute IntentReceiver components. Background-
* and foreground-priority broadcasts are queued separately.
*/
final ArrayList<BroadcastRecord> mParallelBroadcasts = new ArrayList<>();
/**
* Tracking of the ordered broadcast queue, including deferral policy and alarm
* prioritization.
*/
final BroadcastDispatcher mDispatcher;
/**
* Refcounting for completion callbacks of split/deferred broadcasts. The key
* is an opaque integer token assigned lazily when a broadcast is first split
* into multiple BroadcastRecord objects.
*/
final SparseIntArray mSplitRefcounts = new SparseIntArray();
private int mNextToken = 0;
/**
* Historical data of past broadcasts, for debugging. This is a ring buffer
* whose last element is at mHistoryNext.
*/
final BroadcastRecord[] mBroadcastHistory = new BroadcastRecord[MAX_BROADCAST_HISTORY];
int mHistoryNext = 0;
/**
* Summary of historical data of past broadcasts, for debugging. This is a
* ring buffer whose last element is at mSummaryHistoryNext.
*/
final Intent[] mBroadcastSummaryHistory = new Intent[MAX_BROADCAST_SUMMARY_HISTORY];
int mSummaryHistoryNext = 0;
/**
* Various milestone timestamps of entries in the mBroadcastSummaryHistory ring
* buffer, also tracked via the mSummaryHistoryNext index. These are all in wall
* clock time, not elapsed.
*/
final long[] mSummaryHistoryEnqueueTime = new long[MAX_BROADCAST_SUMMARY_HISTORY];
final long[] mSummaryHistoryDispatchTime = new long[MAX_BROADCAST_SUMMARY_HISTORY];
final long[] mSummaryHistoryFinishTime = new long[MAX_BROADCAST_SUMMARY_HISTORY];
/**
* Set when we current have a BROADCAST_INTENT_MSG in flight.
*/
boolean mBroadcastsScheduled = false;
/**
* True if we have a pending unexpired BROADCAST_TIMEOUT_MSG posted to our handler.
*/
boolean mPendingBroadcastTimeoutMessage;
/**
* Intent broadcasts that we have tried to start, but are
* waiting for the application's process to be created. We only
* need one per scheduling class (instead of a list) because we always
* process broadcasts one at a time, so no others can be started while
* waiting for this one.
*/
BroadcastRecord mPendingBroadcast = null;
/**
* The receiver index that is pending, to restart the broadcast if needed.
*/
int mPendingBroadcastRecvIndex;
static final int BROADCAST_INTENT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG;
static final int BROADCAST_TIMEOUT_MSG = ActivityManagerService.FIRST_BROADCAST_QUEUE_MSG + 1;
// log latency metrics for ordered broadcasts during BOOT_COMPLETED processing
boolean mLogLatencyMetrics = true;
final BroadcastHandler mHandler;
private final class BroadcastHandler extends Handler {
public BroadcastHandler(Looper looper) {
super(looper, null, true);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case BROADCAST_INTENT_MSG: {
if (DEBUG_BROADCAST) Slog.v(
TAG_BROADCAST, "Received BROADCAST_INTENT_MSG ["
+ mQueueName + "]");
processNextBroadcast(true);
} break;
case BROADCAST_TIMEOUT_MSG: {
synchronized (mService) {
broadcastTimeoutLocked(true);
}
} break;
}
}
}
BroadcastQueue(ActivityManagerService service, Handler handler,
String name, BroadcastConstants constants, boolean allowDelayBehindServices) {
mService = service;
mHandler = new BroadcastHandler(handler.getLooper());
mQueueName = name;
mDelayBehindServices = allowDelayBehindServices;
mConstants = constants;
mDispatcher = new BroadcastDispatcher(this, mConstants, mHandler, mService);
}
void start(ContentResolver resolver) {
mDispatcher.start();
mConstants.startObserving(mHandler, resolver);
}
@Override
public String toString() {
return mQueueName;
}
public boolean isPendingBroadcastProcessLocked(int pid) {
return mPendingBroadcast != null && mPendingBroadcast.curApp.getPid() == pid;
}
public void enqueueParallelBroadcastLocked(BroadcastRecord r) {
mParallelBroadcasts.add(r);
enqueueBroadcastHelper(r);
}
public void enqueueOrderedBroadcastLocked(BroadcastRecord r) {
mDispatcher.enqueueOrderedBroadcastLocked(r);
enqueueBroadcastHelper(r);
}
/**
* Don't call this method directly; call enqueueParallelBroadcastLocked or
* enqueueOrderedBroadcastLocked.
*/
private void enqueueBroadcastHelper(BroadcastRecord r) {
r.enqueueClockTime = System.currentTimeMillis();
if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(r, BroadcastRecord.DELIVERY_PENDING),
System.identityHashCode(r));
}
}
/**
* Find the same intent from queued parallel broadcast, replace with a new one and return
* the old one.
*/
public final BroadcastRecord replaceParallelBroadcastLocked(BroadcastRecord r) {
return replaceBroadcastLocked(mParallelBroadcasts, r, "PARALLEL");
}
/**
* Find the same intent from queued ordered broadcast, replace with a new one and return
* the old one.
*/
public final BroadcastRecord replaceOrderedBroadcastLocked(BroadcastRecord r) {
return mDispatcher.replaceBroadcastLocked(r, "ORDERED");
}
private BroadcastRecord replaceBroadcastLocked(ArrayList<BroadcastRecord> queue,
BroadcastRecord r, String typeForLogging) {
final Intent intent = r.intent;
for (int i = queue.size() - 1; i > 0; i--) {
final BroadcastRecord old = queue.get(i);
if (old.userId == r.userId && intent.filterEquals(old.intent)) {
if (DEBUG_BROADCAST) {
Slog.v(TAG_BROADCAST, "***** DROPPING "
+ typeForLogging + " [" + mQueueName + "]: " + intent);
}
queue.set(i, r);
return old;
}
}
return null;
}
private final void processCurBroadcastLocked(BroadcastRecord r,
ProcessRecord app) throws RemoteException {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Process cur broadcast " + r + " for app " + app);
final IApplicationThread thread = app.getThread();
if (thread == null) {
throw new RemoteException();
}
if (app.isInFullBackup()) {
skipReceiverLocked(r);
return;
}
r.receiver = thread.asBinder();
r.curApp = app;
final ProcessReceiverRecord prr = app.mReceivers;
prr.addCurReceiver(r);
app.mState.forceProcessStateUpTo(ActivityManager.PROCESS_STATE_RECEIVER);
mService.updateLruProcessLocked(app, false, null);
// Make sure the oom adj score is updated before delivering the broadcast.
// Force an update, even if there are other pending requests, overall it still saves time,
// because time(updateOomAdj(N apps)) <= N * time(updateOomAdj(1 app)).
mService.enqueueOomAdjTargetLocked(app);
mService.updateOomAdjPendingTargetsLocked(OomAdjuster.OOM_ADJ_REASON_START_RECEIVER);
// Tell the application to launch this receiver.
r.intent.setComponent(r.curComponent);
boolean started = false;
try {
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST,
"Delivering to component " + r.curComponent
+ ": " + r);
mService.notifyPackageUse(r.intent.getComponent().getPackageName(),
PackageManager.NOTIFY_PACKAGE_USE_BROADCAST_RECEIVER);
thread.scheduleReceiver(new Intent(r.intent), r.curReceiver,
mService.compatibilityInfoForPackage(r.curReceiver.applicationInfo),
r.resultCode, r.resultData, r.resultExtras, r.ordered, r.userId,
app.mState.getReportedProcState());
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Process cur broadcast " + r + " DELIVERED for app " + app);
started = true;
} finally {
if (!started) {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Process cur broadcast " + r + ": NOT STARTED!");
r.receiver = null;
r.curApp = null;
prr.removeCurReceiver(r);
}
}
}
public boolean sendPendingBroadcastsLocked(ProcessRecord app) {
boolean didSomething = false;
final BroadcastRecord br = mPendingBroadcast;
if (br != null && br.curApp.getPid() > 0 && br.curApp.getPid() == app.getPid()) {
if (br.curApp != app) {
Slog.e(TAG, "App mismatch when sending pending broadcast to "
+ app.processName + ", intended target is " + br.curApp.processName);
return false;
}
try {
mPendingBroadcast = null;
processCurBroadcastLocked(br, app);
didSomething = true;
} catch (Exception e) {
Slog.w(TAG, "Exception in new application when starting receiver "
+ br.curComponent.flattenToShortString(), e);
logBroadcastReceiverDiscardLocked(br);
finishReceiverLocked(br, br.resultCode, br.resultData,
br.resultExtras, br.resultAbort, false);
scheduleBroadcastsLocked();
// We need to reset the state if we failed to start the receiver.
br.state = BroadcastRecord.IDLE;
throw new RuntimeException(e.getMessage());
}
}
return didSomething;
}
public void skipPendingBroadcastLocked(int pid) {
final BroadcastRecord br = mPendingBroadcast;
if (br != null && br.curApp.getPid() == pid) {
br.state = BroadcastRecord.IDLE;
br.nextReceiver = mPendingBroadcastRecvIndex;
mPendingBroadcast = null;
scheduleBroadcastsLocked();
}
}
// Skip the current receiver, if any, that is in flight to the given process
public void skipCurrentReceiverLocked(ProcessRecord app) {
BroadcastRecord r = null;
final BroadcastRecord curActive = mDispatcher.getActiveBroadcastLocked();
if (curActive != null && curActive.curApp == app) {
// confirmed: the current active broadcast is to the given app
r = curActive;
}
// If the current active broadcast isn't this BUT we're waiting for
// mPendingBroadcast to spin up the target app, that's what we use.
if (r == null && mPendingBroadcast != null && mPendingBroadcast.curApp == app) {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"[" + mQueueName + "] skip & discard pending app " + r);
r = mPendingBroadcast;
}
if (r != null) {
skipReceiverLocked(r);
}
}
private void skipReceiverLocked(BroadcastRecord r) {
logBroadcastReceiverDiscardLocked(r);
finishReceiverLocked(r, r.resultCode, r.resultData,
r.resultExtras, r.resultAbort, false);
scheduleBroadcastsLocked();
}
public void scheduleBroadcastsLocked() {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Schedule broadcasts ["
+ mQueueName + "]: current="
+ mBroadcastsScheduled);
if (mBroadcastsScheduled) {
return;
}
mHandler.sendMessage(mHandler.obtainMessage(BROADCAST_INTENT_MSG, this));
mBroadcastsScheduled = true;
}
public BroadcastRecord getMatchingOrderedReceiver(IBinder receiver) {
BroadcastRecord br = mDispatcher.getActiveBroadcastLocked();
if (br != null && br.receiver == receiver) {
return br;
}
return null;
}
// > 0 only, no worry about "eventual" recycling
private int nextSplitTokenLocked() {
int next = mNextToken + 1;
if (next <= 0) {
next = 1;
}
mNextToken = next;
return next;
}
private void postActivityStartTokenRemoval(ProcessRecord app, BroadcastRecord r) {
// the receiver had run for less than allowed bg activity start timeout,
// so allow the process to still start activities from bg for some more time
String msgToken = (app.toShortString() + r.toString()).intern();
// first, if there exists a past scheduled request to remove this token, drop
// that request - we don't want the token to be swept from under our feet...
mHandler.removeCallbacksAndMessages(msgToken);
// ...then schedule the removal of the token after the extended timeout
mHandler.postAtTime(() -> {
synchronized (mService) {
app.removeAllowBackgroundActivityStartsToken(r);
}
}, msgToken, (r.receiverTime + mConstants.ALLOW_BG_ACTIVITY_START_TIMEOUT));
}
public boolean finishReceiverLocked(BroadcastRecord r, int resultCode,
String resultData, Bundle resultExtras, boolean resultAbort, boolean waitForServices) {
final int state = r.state;
final ActivityInfo receiver = r.curReceiver;
final long finishTime = SystemClock.uptimeMillis();
final long elapsed = finishTime - r.receiverTime;
r.state = BroadcastRecord.IDLE;
if (state == BroadcastRecord.IDLE) {
Slog.w(TAG_BROADCAST, "finishReceiver [" + mQueueName + "] called but state is IDLE");
}
if (r.allowBackgroundActivityStarts && r.curApp != null) {
if (elapsed > mConstants.ALLOW_BG_ACTIVITY_START_TIMEOUT) {
// if the receiver has run for more than allowed bg activity start timeout,
// just remove the token for this process now and we're done
r.curApp.removeAllowBackgroundActivityStartsToken(r);
} else {
// It gets more time; post the removal to happen at the appropriate moment
postActivityStartTokenRemoval(r.curApp, r);
}
}
// If we're abandoning this broadcast before any receivers were actually spun up,
// nextReceiver is zero; in which case time-to-process bookkeeping doesn't apply.
if (r.nextReceiver > 0) {
r.duration[r.nextReceiver - 1] = elapsed;
}
// if this receiver was slow, impose deferral policy on the app. This will kick in
// when processNextBroadcastLocked() next finds this uid as a receiver identity.
if (!r.timeoutExempt) {
// r.curApp can be null if finish has raced with process death - benign
// edge case, and we just ignore it because we're already cleaning up
// as expected.
if (r.curApp != null
&& mConstants.SLOW_TIME > 0 && elapsed > mConstants.SLOW_TIME) {
// Core system packages are exempt from deferral policy
if (!UserHandle.isCore(r.curApp.uid)) {
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Broadcast receiver " + (r.nextReceiver - 1)
+ " was slow: " + receiver + " br=" + r);
}
mDispatcher.startDeferring(r.curApp.uid);
} else {
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Core uid " + r.curApp.uid
+ " receiver was slow but not deferring: "
+ receiver + " br=" + r);
}
}
}
} else {
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Finished broadcast " + r.intent.getAction()
+ " is exempt from deferral policy");
}
}
r.receiver = null;
r.intent.setComponent(null);
if (r.curApp != null && r.curApp.mReceivers.hasCurReceiver(r)) {
r.curApp.mReceivers.removeCurReceiver(r);
mService.enqueueOomAdjTargetLocked(r.curApp);
}
if (r.curFilter != null) {
r.curFilter.receiverList.curBroadcast = null;
}
r.curFilter = null;
r.curReceiver = null;
r.curApp = null;
mPendingBroadcast = null;
r.resultCode = resultCode;
r.resultData = resultData;
r.resultExtras = resultExtras;
if (resultAbort && (r.intent.getFlags()&Intent.FLAG_RECEIVER_NO_ABORT) == 0) {
r.resultAbort = resultAbort;
} else {
r.resultAbort = false;
}
// If we want to wait behind services *AND* we're finishing the head/
// active broadcast on its queue
if (waitForServices && r.curComponent != null && r.queue.mDelayBehindServices
&& r.queue.mDispatcher.getActiveBroadcastLocked() == r) {
ActivityInfo nextReceiver;
if (r.nextReceiver < r.receivers.size()) {
Object obj = r.receivers.get(r.nextReceiver);
nextReceiver = (obj instanceof ActivityInfo) ? (ActivityInfo)obj : null;
} else {
nextReceiver = null;
}
// Don't do this if the next receive is in the same process as the current one.
if (receiver == null || nextReceiver == null
|| receiver.applicationInfo.uid != nextReceiver.applicationInfo.uid
|| !receiver.processName.equals(nextReceiver.processName)) {
// In this case, we are ready to process the next receiver for the current broadcast,
// but are on a queue that would like to wait for services to finish before moving
// on. If there are background services currently starting, then we will go into a
// special state where we hold off on continuing this broadcast until they are done.
if (mService.mServices.hasBackgroundServicesLocked(r.userId)) {
Slog.i(TAG, "Delay finish: " + r.curComponent.flattenToShortString());
r.state = BroadcastRecord.WAITING_SERVICES;
return false;
}
}
}
r.curComponent = null;
// We will process the next receiver right now if this is finishing
// an app receiver (which is always asynchronous) or after we have
// come back from calling a receiver.
return state == BroadcastRecord.APP_RECEIVE
|| state == BroadcastRecord.CALL_DONE_RECEIVE;
}
public void backgroundServicesFinishedLocked(int userId) {
BroadcastRecord br = mDispatcher.getActiveBroadcastLocked();
if (br != null) {
if (br.userId == userId && br.state == BroadcastRecord.WAITING_SERVICES) {
Slog.i(TAG, "Resuming delayed broadcast");
br.curComponent = null;
br.state = BroadcastRecord.IDLE;
processNextBroadcastLocked(false, false);
}
}
}
void performReceiveLocked(ProcessRecord app, IIntentReceiver receiver,
Intent intent, int resultCode, String data, Bundle extras,
boolean ordered, boolean sticky, int sendingUser)
throws RemoteException {
// Send the intent to the receiver asynchronously using one-way binder calls.
if (app != null) {
final IApplicationThread thread = app.getThread();
if (thread != null) {
// If we have an app thread, do the call through that so it is
// correctly ordered with other one-way calls.
try {
thread.scheduleRegisteredReceiver(receiver, intent, resultCode,
data, extras, ordered, sticky, sendingUser,
app.mState.getReportedProcState());
// TODO: Uncomment this when (b/28322359) is fixed and we aren't getting
// DeadObjectException when the process isn't actually dead.
//} catch (DeadObjectException ex) {
// Failed to call into the process. It's dying so just let it die and move on.
// throw ex;
} catch (RemoteException ex) {
// Failed to call into the process. It's either dying or wedged. Kill it gently.
synchronized (mService) {
Slog.w(TAG, "Can't deliver broadcast to " + app.processName
+ " (pid " + app.getPid() + "). Crashing it.");
app.scheduleCrashLocked("can't deliver broadcast",
CannotDeliverBroadcastException.TYPE_ID, /* extras=*/ null);
}
throw ex;
}
} else {
// Application has died. Receiver doesn't exist.
throw new RemoteException("app.thread must not be null");
}
} else {
receiver.performReceive(intent, resultCode, data, extras, ordered,
sticky, sendingUser);
}
}
private void deliverToRegisteredReceiverLocked(BroadcastRecord r,
BroadcastFilter filter, boolean ordered, int index) {
boolean skip = false;
if (!mService.validateAssociationAllowedLocked(r.callerPackage, r.callingUid,
filter.packageName, filter.owningUid)) {
Slog.w(TAG, "Association not allowed: broadcasting "
+ r.intent.toString()
+ " from " + r.callerPackage + " (pid=" + r.callingPid
+ ", uid=" + r.callingUid + ") to " + filter.packageName + " through "
+ filter);
skip = true;
}
if (!skip && !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid,
r.callingPid, r.resolvedType, filter.receiverList.uid)) {
Slog.w(TAG, "Firewall blocked: broadcasting "
+ r.intent.toString()
+ " from " + r.callerPackage + " (pid=" + r.callingPid
+ ", uid=" + r.callingUid + ") to " + filter.packageName + " through "
+ filter);
skip = true;
}
// Check that the sender has permission to send to this receiver
if (filter.requiredPermission != null) {
int perm = mService.checkComponentPermission(filter.requiredPermission,
r.callingPid, r.callingUid, -1, true);
if (perm != PackageManager.PERMISSION_GRANTED) {
Slog.w(TAG, "Permission Denial: broadcasting "
+ r.intent.toString()
+ " from " + r.callerPackage + " (pid="
+ r.callingPid + ", uid=" + r.callingUid + ")"
+ " requires " + filter.requiredPermission
+ " due to registered receiver " + filter);
skip = true;
} else {
final int opCode = AppOpsManager.permissionToOpCode(filter.requiredPermission);
if (opCode != AppOpsManager.OP_NONE
&& mService.getAppOpsManager().noteOpNoThrow(opCode, r.callingUid,
r.callerPackage, r.callerFeatureId, "Broadcast sent to protected receiver")
!= AppOpsManager.MODE_ALLOWED) {
Slog.w(TAG, "Appop Denial: broadcasting "
+ r.intent.toString()
+ " from " + r.callerPackage + " (pid="
+ r.callingPid + ", uid=" + r.callingUid + ")"
+ " requires appop " + AppOpsManager.permissionToOp(
filter.requiredPermission)
+ " due to registered receiver " + filter);
skip = true;
}
}
}
if (!skip && (filter.receiverList.app == null || filter.receiverList.app.isKilled()
|| filter.receiverList.app.mErrorState.isCrashing())) {
Slog.w(TAG, "Skipping deliver [" + mQueueName + "] " + r
+ " to " + filter.receiverList + ": process gone or crashing");
skip = true;
}
// Ensure that broadcasts are only sent to other Instant Apps if they are marked as
// visible to Instant Apps.
final boolean visibleToInstantApps =
(r.intent.getFlags() & Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS) != 0;
if (!skip && !visibleToInstantApps && filter.instantApp
&& filter.receiverList.uid != r.callingUid) {
Slog.w(TAG, "Instant App Denial: receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")"
+ " not specifying FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS");
skip = true;
}
if (!skip && !filter.visibleToInstantApp && r.callerInstantApp
&& filter.receiverList.uid != r.callingUid) {
Slog.w(TAG, "Instant App Denial: receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " requires receiver be visible to instant apps"
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
// Check that the receiver has the required permission(s) to receive this broadcast.
if (!skip && r.requiredPermissions != null && r.requiredPermissions.length > 0) {
for (int i = 0; i < r.requiredPermissions.length; i++) {
String requiredPermission = r.requiredPermissions[i];
int perm = mService.checkComponentPermission(requiredPermission,
filter.receiverList.pid, filter.receiverList.uid, -1, true);
if (perm != PackageManager.PERMISSION_GRANTED) {
Slog.w(TAG, "Permission Denial: receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " requires " + requiredPermission
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
break;
}
int appOp = AppOpsManager.permissionToOpCode(requiredPermission);
if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp
&& mService.getAppOpsManager().noteOpNoThrow(appOp,
filter.receiverList.uid, filter.packageName, filter.featureId,
"Broadcast delivered to registered receiver " + filter.receiverId)
!= AppOpsManager.MODE_ALLOWED) {
Slog.w(TAG, "Appop Denial: receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " requires appop " + AppOpsManager.permissionToOp(
requiredPermission)
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
break;
}
}
}
if (!skip && (r.requiredPermissions == null || r.requiredPermissions.length == 0)) {
int perm = mService.checkComponentPermission(null,
filter.receiverList.pid, filter.receiverList.uid, -1, true);
if (perm != PackageManager.PERMISSION_GRANTED) {
Slog.w(TAG, "Permission Denial: security check failed when receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
}
// Check that the receiver does *not* belong to any of the excluded packages
if (!skip && r.excludedPackages != null && r.excludedPackages.length > 0) {
if (ArrayUtils.contains(r.excludedPackages, filter.packageName)) {
Slog.w(TAG, "Skipping delivery of excluded package "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " excludes package " + filter.packageName
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
}
// If the broadcast also requires an app op check that as well.
if (!skip && r.appOp != AppOpsManager.OP_NONE
&& mService.getAppOpsManager().noteOpNoThrow(r.appOp,
filter.receiverList.uid, filter.packageName, filter.featureId,
"Broadcast delivered to registered receiver " + filter.receiverId)
!= AppOpsManager.MODE_ALLOWED) {
Slog.w(TAG, "Appop Denial: receiving "
+ r.intent.toString()
+ " to " + filter.receiverList.app
+ " (pid=" + filter.receiverList.pid
+ ", uid=" + filter.receiverList.uid + ")"
+ " requires appop " + AppOpsManager.opToName(r.appOp)
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
if (skip) {
r.delivery[index] = BroadcastRecord.DELIVERY_SKIPPED;
return;
}
// If permissions need a review before any of the app components can run, we drop
// the broadcast and if the calling app is in the foreground and the broadcast is
// explicit we launch the review UI passing it a pending intent to send the skipped
// broadcast.
if (!requestStartTargetPermissionsReviewIfNeededLocked(r, filter.packageName,
filter.owningUserId)) {
r.delivery[index] = BroadcastRecord.DELIVERY_SKIPPED;
return;
}
r.delivery[index] = BroadcastRecord.DELIVERY_DELIVERED;
// If this is not being sent as an ordered broadcast, then we
// don't want to touch the fields that keep track of the current
// state of ordered broadcasts.
if (ordered) {
r.receiver = filter.receiverList.receiver.asBinder();
r.curFilter = filter;
filter.receiverList.curBroadcast = r;
r.state = BroadcastRecord.CALL_IN_RECEIVE;
if (filter.receiverList.app != null) {
// Bump hosting application to no longer be in background
// scheduling class. Note that we can't do that if there
// isn't an app... but we can only be in that case for
// things that directly call the IActivityManager API, which
// are already core system stuff so don't matter for this.
r.curApp = filter.receiverList.app;
filter.receiverList.app.mReceivers.addCurReceiver(r);
mService.enqueueOomAdjTargetLocked(r.curApp);
mService.updateOomAdjPendingTargetsLocked(
OomAdjuster.OOM_ADJ_REASON_START_RECEIVER);
}
} else if (filter.receiverList.app != null) {
mService.mOomAdjuster.mCachedAppOptimizer.unfreezeTemporarily(filter.receiverList.app);
}
try {
if (DEBUG_BROADCAST_LIGHT) Slog.i(TAG_BROADCAST,
"Delivering to " + filter + " : " + r);
if (filter.receiverList.app != null && filter.receiverList.app.isInFullBackup()) {
// Skip delivery if full backup in progress
// If it's an ordered broadcast, we need to continue to the next receiver.
if (ordered) {
skipReceiverLocked(r);
}
} else {
r.receiverTime = SystemClock.uptimeMillis();
maybeAddAllowBackgroundActivityStartsToken(filter.receiverList.app, r);
maybeScheduleTempAllowlistLocked(filter.owningUid, r, r.options);
performReceiveLocked(filter.receiverList.app, filter.receiverList.receiver,
new Intent(r.intent), r.resultCode, r.resultData,
r.resultExtras, r.ordered, r.initialSticky, r.userId);
// parallel broadcasts are fire-and-forget, not bookended by a call to
// finishReceiverLocked(), so we manage their activity-start token here
if (filter.receiverList.app != null
&& r.allowBackgroundActivityStarts && !r.ordered) {
postActivityStartTokenRemoval(filter.receiverList.app, r);
}
}
if (ordered) {
r.state = BroadcastRecord.CALL_DONE_RECEIVE;
}
} catch (RemoteException e) {
Slog.w(TAG, "Failure sending broadcast " + r.intent, e);
// Clean up ProcessRecord state related to this broadcast attempt
if (filter.receiverList.app != null) {
filter.receiverList.app.removeAllowBackgroundActivityStartsToken(r);
if (ordered) {
filter.receiverList.app.mReceivers.removeCurReceiver(r);
// Something wrong, its oom adj could be downgraded, but not in a hurry.
mService.enqueueOomAdjTargetLocked(r.curApp);
}
}
// And BroadcastRecord state related to ordered delivery, if appropriate
if (ordered) {
r.receiver = null;
r.curFilter = null;
filter.receiverList.curBroadcast = null;
}
}
}
private boolean requestStartTargetPermissionsReviewIfNeededLocked(
BroadcastRecord receiverRecord, String receivingPackageName,
final int receivingUserId) {
if (!mService.getPackageManagerInternal().isPermissionsReviewRequired(
receivingPackageName, receivingUserId)) {
return true;
}
final boolean callerForeground = receiverRecord.callerApp != null
? receiverRecord.callerApp.mState.getSetSchedGroup()
!= ProcessList.SCHED_GROUP_BACKGROUND : true;
// Show a permission review UI only for explicit broadcast from a foreground app
if (callerForeground && receiverRecord.intent.getComponent() != null) {
IIntentSender target = mService.mPendingIntentController.getIntentSender(
ActivityManager.INTENT_SENDER_BROADCAST, receiverRecord.callerPackage,
receiverRecord.callerFeatureId, receiverRecord.callingUid,
receiverRecord.userId, null, null, 0,
new Intent[]{receiverRecord.intent},
new String[]{receiverRecord.intent.resolveType(mService.mContext
.getContentResolver())},
PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT
| PendingIntent.FLAG_IMMUTABLE, null);
final Intent intent = new Intent(Intent.ACTION_REVIEW_PERMISSIONS);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_MULTIPLE_TASK
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
intent.putExtra(Intent.EXTRA_PACKAGE_NAME, receivingPackageName);
intent.putExtra(Intent.EXTRA_INTENT, new IntentSender(target));
if (DEBUG_PERMISSIONS_REVIEW) {
Slog.i(TAG, "u" + receivingUserId + " Launching permission review for package "
+ receivingPackageName);
}
mHandler.post(new Runnable() {
@Override
public void run() {
mService.mContext.startActivityAsUser(intent, new UserHandle(receivingUserId));
}
});
} else {
Slog.w(TAG, "u" + receivingUserId + " Receiving a broadcast in package"
+ receivingPackageName + " requires a permissions review");
}
return false;
}
void maybeScheduleTempAllowlistLocked(int uid, BroadcastRecord r,
@Nullable BroadcastOptions brOptions) {
if (brOptions == null || brOptions.getTemporaryAppAllowlistDuration() <= 0) {
return;
}
long duration = brOptions.getTemporaryAppAllowlistDuration();
final @TempAllowListType int type = brOptions.getTemporaryAppAllowlistType();
final @ReasonCode int reasonCode = brOptions.getTemporaryAppAllowlistReasonCode();
final String reason = brOptions.getTemporaryAppAllowlistReason();
if (duration > Integer.MAX_VALUE) {
duration = Integer.MAX_VALUE;
}
// XXX ideally we should pause the broadcast until everything behind this is done,
// or else we will likely start dispatching the broadcast before we have opened
// access to the app (there is a lot of asynchronicity behind this). It is probably
// not that big a deal, however, because the main purpose here is to allow apps
// to hold wake locks, and they will be able to acquire their wake lock immediately
// it just won't be enabled until we get through this work.
StringBuilder b = new StringBuilder();
b.append("broadcast:");
UserHandle.formatUid(b, r.callingUid);
b.append(":");
if (r.intent.getAction() != null) {
b.append(r.intent.getAction());
} else if (r.intent.getComponent() != null) {
r.intent.getComponent().appendShortString(b);
} else if (r.intent.getData() != null) {
b.append(r.intent.getData());
}
b.append(",reason:");
b.append(reason);
if (DEBUG_BROADCAST) {
Slog.v(TAG, "Broadcast temp allowlist uid=" + uid + " duration=" + duration
+ " type=" + type + " : " + b.toString());
}
mService.tempAllowlistUidLocked(uid, duration, reasonCode, b.toString(), type,
r.callingUid);
}
/**
* Return true if all given permissions are signature-only perms.
*/
final boolean isSignaturePerm(String[] perms) {
if (perms == null) {
return false;
}
IPermissionManager pm = AppGlobals.getPermissionManager();
for (int i = perms.length-1; i >= 0; i--) {
try {
PermissionInfo pi = pm.getPermissionInfo(perms[i], "android", 0);
if (pi == null) {
// a required permission that no package has actually
// defined cannot be signature-required.
return false;
}
if ((pi.protectionLevel & (PermissionInfo.PROTECTION_MASK_BASE
| PermissionInfo.PROTECTION_FLAG_PRIVILEGED))
!= PermissionInfo.PROTECTION_SIGNATURE) {
// If this a signature permission and NOT allowed for privileged apps, it
// is okay... otherwise, nope!
return false;
}
} catch (RemoteException e) {
return false;
}
}
return true;
}
private void processNextBroadcast(boolean fromMsg) {
synchronized (mService) {
processNextBroadcastLocked(fromMsg, false);
}
}
static String broadcastDescription(BroadcastRecord r, ComponentName component) {
return r.intent.toString()
+ " from " + r.callerPackage + " (pid=" + r.callingPid
+ ", uid=" + r.callingUid + ") to " + component.flattenToShortString();
}
final void processNextBroadcastLocked(boolean fromMsg, boolean skipOomAdj) {
BroadcastRecord r;
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "processNextBroadcast ["
+ mQueueName + "]: "
+ mParallelBroadcasts.size() + " parallel broadcasts; "
+ mDispatcher.describeStateLocked());
mService.updateCpuStats();
if (fromMsg) {
mBroadcastsScheduled = false;
}
// First, deliver any non-serialized broadcasts right away.
while (mParallelBroadcasts.size() > 0) {
r = mParallelBroadcasts.remove(0);
r.dispatchTime = SystemClock.uptimeMillis();
r.dispatchClockTime = System.currentTimeMillis();
if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(r, BroadcastRecord.DELIVERY_PENDING),
System.identityHashCode(r));
Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(r, BroadcastRecord.DELIVERY_DELIVERED),
System.identityHashCode(r));
}
final int N = r.receivers.size();
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing parallel broadcast ["
+ mQueueName + "] " + r);
for (int i=0; i<N; i++) {
Object target = r.receivers.get(i);
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Delivering non-ordered on [" + mQueueName + "] to registered "
+ target + ": " + r);
deliverToRegisteredReceiverLocked(r,
(BroadcastFilter) target, false, i);
}
addBroadcastToHistoryLocked(r);
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Done with parallel broadcast ["
+ mQueueName + "] " + r);
}
// Now take care of the next serialized one...
// If we are waiting for a process to come up to handle the next
// broadcast, then do nothing at this point. Just in case, we
// check that the process we're waiting for still exists.
if (mPendingBroadcast != null) {
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST,
"processNextBroadcast [" + mQueueName + "]: waiting for "
+ mPendingBroadcast.curApp);
boolean isDead;
if (mPendingBroadcast.curApp.getPid() > 0) {
synchronized (mService.mPidsSelfLocked) {
ProcessRecord proc = mService.mPidsSelfLocked.get(
mPendingBroadcast.curApp.getPid());
isDead = proc == null || proc.mErrorState.isCrashing();
}
} else {
final ProcessRecord proc = mService.mProcessList.getProcessNamesLOSP().get(
mPendingBroadcast.curApp.processName, mPendingBroadcast.curApp.uid);
isDead = proc == null || !proc.isPendingStart();
}
if (!isDead) {
// It's still alive, so keep waiting
return;
} else {
Slog.w(TAG, "pending app ["
+ mQueueName + "]" + mPendingBroadcast.curApp
+ " died before responding to broadcast");
mPendingBroadcast.state = BroadcastRecord.IDLE;
mPendingBroadcast.nextReceiver = mPendingBroadcastRecvIndex;
mPendingBroadcast = null;
}
}
boolean looped = false;
do {
final long now = SystemClock.uptimeMillis();
r = mDispatcher.getNextBroadcastLocked(now);
if (r == null) {
// No more broadcasts are deliverable right now, so all done!
mDispatcher.scheduleDeferralCheckLocked(false);
synchronized (mService.mAppProfiler.mProfilerLock) {
mService.mAppProfiler.scheduleAppGcsLPf();
}
if (looped && !skipOomAdj) {
// If we had finished the last ordered broadcast, then
// make sure all processes have correct oom and sched
// adjustments.
mService.updateOomAdjPendingTargetsLocked(
OomAdjuster.OOM_ADJ_REASON_START_RECEIVER);
}
// when we have no more ordered broadcast on this queue, stop logging
if (mService.mUserController.mBootCompleted && mLogLatencyMetrics) {
mLogLatencyMetrics = false;
}
return;
}
boolean forceReceive = false;
// Ensure that even if something goes awry with the timeout
// detection, we catch "hung" broadcasts here, discard them,
// and continue to make progress.
//
// This is only done if the system is ready so that early-stage receivers
// don't get executed with timeouts; and of course other timeout-
// exempt broadcasts are ignored.
int numReceivers = (r.receivers != null) ? r.receivers.size() : 0;
if (mService.mProcessesReady && !r.timeoutExempt && r.dispatchTime > 0) {
if ((numReceivers > 0) &&
(now > r.dispatchTime + (2 * mConstants.TIMEOUT * numReceivers))) {
Slog.w(TAG, "Hung broadcast ["
+ mQueueName + "] discarded after timeout failure:"
+ " now=" + now
+ " dispatchTime=" + r.dispatchTime
+ " startTime=" + r.receiverTime
+ " intent=" + r.intent
+ " numReceivers=" + numReceivers
+ " nextReceiver=" + r.nextReceiver
+ " state=" + r.state);
broadcastTimeoutLocked(false); // forcibly finish this broadcast
forceReceive = true;
r.state = BroadcastRecord.IDLE;
}
}
if (r.state != BroadcastRecord.IDLE) {
if (DEBUG_BROADCAST) Slog.d(TAG_BROADCAST,
"processNextBroadcast("
+ mQueueName + ") called when not idle (state="
+ r.state + ")");
return;
}
// Is the current broadcast is done for any reason?
if (r.receivers == null || r.nextReceiver >= numReceivers
|| r.resultAbort || forceReceive) {
// Send the final result if requested
if (r.resultTo != null) {
boolean sendResult = true;
// if this was part of a split/deferral complex, update the refcount and only
// send the completion when we clear all of them
if (r.splitToken != 0) {
int newCount = mSplitRefcounts.get(r.splitToken) - 1;
if (newCount == 0) {
// done! clear out this record's bookkeeping and deliver
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST,
"Sending broadcast completion for split token "
+ r.splitToken + " : " + r.intent.getAction());
}
mSplitRefcounts.delete(r.splitToken);
} else {
// still have some split broadcast records in flight; update refcount
// and hold off on the callback
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST,
"Result refcount now " + newCount + " for split token "
+ r.splitToken + " : " + r.intent.getAction()
+ " - not sending completion yet");
}
sendResult = false;
mSplitRefcounts.put(r.splitToken, newCount);
}
}
if (sendResult) {
if (r.callerApp != null) {
mService.mOomAdjuster.mCachedAppOptimizer.unfreezeTemporarily(
r.callerApp);
}
try {
if (DEBUG_BROADCAST) {
Slog.i(TAG_BROADCAST, "Finishing broadcast [" + mQueueName + "] "
+ r.intent.getAction() + " app=" + r.callerApp);
}
performReceiveLocked(r.callerApp, r.resultTo,
new Intent(r.intent), r.resultCode,
r.resultData, r.resultExtras, false, false, r.userId);
// Set this to null so that the reference
// (local and remote) isn't kept in the mBroadcastHistory.
r.resultTo = null;
} catch (RemoteException e) {
r.resultTo = null;
Slog.w(TAG, "Failure ["
+ mQueueName + "] sending broadcast result of "
+ r.intent, e);
}
}
}
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Cancelling BROADCAST_TIMEOUT_MSG");
cancelBroadcastTimeoutLocked();
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST,
"Finished with ordered broadcast " + r);
// ... and on to the next...
addBroadcastToHistoryLocked(r);
if (r.intent.getComponent() == null && r.intent.getPackage() == null
&& (r.intent.getFlags()&Intent.FLAG_RECEIVER_REGISTERED_ONLY) == 0) {
// This was an implicit broadcast... let's record it for posterity.
mService.addBroadcastStatLocked(r.intent.getAction(), r.callerPackage,
r.manifestCount, r.manifestSkipCount, r.finishTime-r.dispatchTime);
}
mDispatcher.retireBroadcastLocked(r);
r = null;
looped = true;
continue;
}
// Check whether the next receiver is under deferral policy, and handle that
// accordingly. If the current broadcast was already part of deferred-delivery
// tracking, we know that it must now be deliverable as-is without re-deferral.
if (!r.deferred) {
final int receiverUid = r.getReceiverUid(r.receivers.get(r.nextReceiver));
if (mDispatcher.isDeferringLocked(receiverUid)) {
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Next receiver in " + r + " uid " + receiverUid
+ " at " + r.nextReceiver + " is under deferral");
}
// If this is the only (remaining) receiver in the broadcast, "splitting"
// doesn't make sense -- just defer it as-is and retire it as the
// currently active outgoing broadcast.
BroadcastRecord defer;
if (r.nextReceiver + 1 == numReceivers) {
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Sole receiver of " + r
+ " is under deferral; setting aside and proceeding");
}
defer = r;
mDispatcher.retireBroadcastLocked(r);
} else {
// Nontrivial case; split out 'uid's receivers to a new broadcast record
// and defer that, then loop and pick up continuing delivery of the current
// record (now absent those receivers).
// The split operation is guaranteed to match at least at 'nextReceiver'
defer = r.splitRecipientsLocked(receiverUid, r.nextReceiver);
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "Post split:");
Slog.i(TAG_BROADCAST, "Original broadcast receivers:");
for (int i = 0; i < r.receivers.size(); i++) {
Slog.i(TAG_BROADCAST, " " + r.receivers.get(i));
}
Slog.i(TAG_BROADCAST, "Split receivers:");
for (int i = 0; i < defer.receivers.size(); i++) {
Slog.i(TAG_BROADCAST, " " + defer.receivers.get(i));
}
}
// Track completion refcount as well if relevant
if (r.resultTo != null) {
int token = r.splitToken;
if (token == 0) {
// first split of this record; refcount for 'r' and 'deferred'
r.splitToken = defer.splitToken = nextSplitTokenLocked();
mSplitRefcounts.put(r.splitToken, 2);
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST,
"Broadcast needs split refcount; using new token "
+ r.splitToken);
}
} else {
// new split from an already-refcounted situation; increment count
final int curCount = mSplitRefcounts.get(token);
if (DEBUG_BROADCAST_DEFERRAL) {
if (curCount == 0) {
Slog.wtf(TAG_BROADCAST,
"Split refcount is zero with token for " + r);
}
}
mSplitRefcounts.put(token, curCount + 1);
if (DEBUG_BROADCAST_DEFERRAL) {
Slog.i(TAG_BROADCAST, "New split count for token " + token
+ " is " + (curCount + 1));
}
}
}
}
mDispatcher.addDeferredBroadcast(receiverUid, defer);
r = null;
looped = true;
continue;
}
}
} while (r == null);
// Get the next receiver...
int recIdx = r.nextReceiver++;
// Keep track of when this receiver started, and make sure there
// is a timeout message pending to kill it if need be.
r.receiverTime = SystemClock.uptimeMillis();
if (recIdx == 0) {
r.dispatchTime = r.receiverTime;
r.dispatchClockTime = System.currentTimeMillis();
if (mLogLatencyMetrics) {
FrameworkStatsLog.write(
FrameworkStatsLog.BROADCAST_DISPATCH_LATENCY_REPORTED,
r.dispatchClockTime - r.enqueueClockTime);
}
if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(r, BroadcastRecord.DELIVERY_PENDING),
System.identityHashCode(r));
Trace.asyncTraceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(r, BroadcastRecord.DELIVERY_DELIVERED),
System.identityHashCode(r));
}
if (DEBUG_BROADCAST_LIGHT) Slog.v(TAG_BROADCAST, "Processing ordered broadcast ["
+ mQueueName + "] " + r);
}
if (! mPendingBroadcastTimeoutMessage) {
long timeoutTime = r.receiverTime + mConstants.TIMEOUT;
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Submitting BROADCAST_TIMEOUT_MSG ["
+ mQueueName + "] for " + r + " at " + timeoutTime);
setBroadcastTimeoutLocked(timeoutTime);
}
final BroadcastOptions brOptions = r.options;
final Object nextReceiver = r.receivers.get(recIdx);
if (nextReceiver instanceof BroadcastFilter) {
// Simple case: this is a registered receiver who gets
// a direct call.
BroadcastFilter filter = (BroadcastFilter)nextReceiver;
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Delivering ordered ["
+ mQueueName + "] to registered "
+ filter + ": " + r);
deliverToRegisteredReceiverLocked(r, filter, r.ordered, recIdx);
if (r.receiver == null || !r.ordered) {
// The receiver has already finished, so schedule to
// process the next one.
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST, "Quick finishing ["
+ mQueueName + "]: ordered="
+ r.ordered + " receiver=" + r.receiver);
r.state = BroadcastRecord.IDLE;
scheduleBroadcastsLocked();
} else {
if (filter.receiverList != null) {
maybeAddAllowBackgroundActivityStartsToken(filter.receiverList.app, r);
// r is guaranteed ordered at this point, so we know finishReceiverLocked()
// will get a callback and handle the activity start token lifecycle.
}
}
return;
}
// Hard case: need to instantiate the receiver, possibly
// starting its application process to host it.
ResolveInfo info =
(ResolveInfo)nextReceiver;
ComponentName component = new ComponentName(
info.activityInfo.applicationInfo.packageName,
info.activityInfo.name);
boolean skip = false;
if (brOptions != null &&
(info.activityInfo.applicationInfo.targetSdkVersion
< brOptions.getMinManifestReceiverApiLevel() ||
info.activityInfo.applicationInfo.targetSdkVersion
> brOptions.getMaxManifestReceiverApiLevel())) {
Slog.w(TAG, "Target SDK mismatch: receiver " + info.activityInfo
+ " targets " + info.activityInfo.applicationInfo.targetSdkVersion
+ " but delivery restricted to ["
+ brOptions.getMinManifestReceiverApiLevel() + ", "
+ brOptions.getMaxManifestReceiverApiLevel()
+ "] broadcasting " + broadcastDescription(r, component));
skip = true;
}
if (!skip && !mService.validateAssociationAllowedLocked(r.callerPackage, r.callingUid,
component.getPackageName(), info.activityInfo.applicationInfo.uid)) {
Slog.w(TAG, "Association not allowed: broadcasting "
+ broadcastDescription(r, component));
skip = true;
}
if (!skip) {
skip = !mService.mIntentFirewall.checkBroadcast(r.intent, r.callingUid,
r.callingPid, r.resolvedType, info.activityInfo.applicationInfo.uid);
if (skip) {
Slog.w(TAG, "Firewall blocked: broadcasting "
+ broadcastDescription(r, component));
}
}
int perm = mService.checkComponentPermission(info.activityInfo.permission,
r.callingPid, r.callingUid, info.activityInfo.applicationInfo.uid,
info.activityInfo.exported);
if (!skip && perm != PackageManager.PERMISSION_GRANTED) {
if (!info.activityInfo.exported) {
Slog.w(TAG, "Permission Denial: broadcasting "
+ broadcastDescription(r, component)
+ " is not exported from uid " + info.activityInfo.applicationInfo.uid);
} else {
Slog.w(TAG, "Permission Denial: broadcasting "
+ broadcastDescription(r, component)
+ " requires " + info.activityInfo.permission);
}
skip = true;
} else if (!skip && info.activityInfo.permission != null) {
final int opCode = AppOpsManager.permissionToOpCode(info.activityInfo.permission);
if (opCode != AppOpsManager.OP_NONE && mService.getAppOpsManager().noteOpNoThrow(opCode,
r.callingUid, r.callerPackage, r.callerFeatureId,
"Broadcast delivered to " + info.activityInfo.name)
!= AppOpsManager.MODE_ALLOWED) {
Slog.w(TAG, "Appop Denial: broadcasting "
+ broadcastDescription(r, component)
+ " requires appop " + AppOpsManager.permissionToOp(
info.activityInfo.permission));
skip = true;
}
}
boolean isSingleton = false;
try {
isSingleton = mService.isSingleton(info.activityInfo.processName,
info.activityInfo.applicationInfo,
info.activityInfo.name, info.activityInfo.flags);
} catch (SecurityException e) {
Slog.w(TAG, e.getMessage());
skip = true;
}
if ((info.activityInfo.flags&ActivityInfo.FLAG_SINGLE_USER) != 0) {
if (ActivityManager.checkUidPermission(
android.Manifest.permission.INTERACT_ACROSS_USERS,
info.activityInfo.applicationInfo.uid)
!= PackageManager.PERMISSION_GRANTED) {
Slog.w(TAG, "Permission Denial: Receiver " + component.flattenToShortString()
+ " requests FLAG_SINGLE_USER, but app does not hold "
+ android.Manifest.permission.INTERACT_ACROSS_USERS);
skip = true;
}
}
if (!skip && info.activityInfo.applicationInfo.isInstantApp()
&& r.callingUid != info.activityInfo.applicationInfo.uid) {
Slog.w(TAG, "Instant App Denial: receiving "
+ r.intent
+ " to " + component.flattenToShortString()
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")"
+ " Instant Apps do not support manifest receivers");
skip = true;
}
if (!skip && r.callerInstantApp
&& (info.activityInfo.flags & ActivityInfo.FLAG_VISIBLE_TO_INSTANT_APP) == 0
&& r.callingUid != info.activityInfo.applicationInfo.uid) {
Slog.w(TAG, "Instant App Denial: receiving "
+ r.intent
+ " to " + component.flattenToShortString()
+ " requires receiver have visibleToInstantApps set"
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
if (r.curApp != null && r.curApp.mErrorState.isCrashing()) {
// If the target process is crashing, just skip it.
Slog.w(TAG, "Skipping deliver ordered [" + mQueueName + "] " + r
+ " to " + r.curApp + ": process crashing");
skip = true;
}
if (!skip) {
boolean isAvailable = false;
try {
isAvailable = AppGlobals.getPackageManager().isPackageAvailable(
info.activityInfo.packageName,
UserHandle.getUserId(info.activityInfo.applicationInfo.uid));
} catch (Exception e) {
// all such failures mean we skip this receiver
Slog.w(TAG, "Exception getting recipient info for "
+ info.activityInfo.packageName, e);
}
if (!isAvailable) {
Slog.w(TAG_BROADCAST,
"Skipping delivery to " + info.activityInfo.packageName + " / "
+ info.activityInfo.applicationInfo.uid
+ " : package no longer available");
skip = true;
}
}
// If permissions need a review before any of the app components can run, we drop
// the broadcast and if the calling app is in the foreground and the broadcast is
// explicit we launch the review UI passing it a pending intent to send the skipped
// broadcast.
if (!skip) {
if (!requestStartTargetPermissionsReviewIfNeededLocked(r,
info.activityInfo.packageName, UserHandle.getUserId(
info.activityInfo.applicationInfo.uid))) {
Slog.w(TAG_BROADCAST,
"Skipping delivery: permission review required for "
+ broadcastDescription(r, component));
skip = true;
}
}
// This is safe to do even if we are skipping the broadcast, and we need
// this information now to evaluate whether it is going to be allowed to run.
final int receiverUid = info.activityInfo.applicationInfo.uid;
// If it's a singleton, it needs to be the same app or a special app
if (r.callingUid != Process.SYSTEM_UID && isSingleton
&& mService.isValidSingletonCall(r.callingUid, receiverUid)) {
info.activityInfo = mService.getActivityInfoForUser(info.activityInfo, 0);
}
String targetProcess = info.activityInfo.processName;
ProcessRecord app = mService.getProcessRecordLocked(targetProcess,
info.activityInfo.applicationInfo.uid);
if (!skip) {
final int allowed = mService.getAppStartModeLOSP(
info.activityInfo.applicationInfo.uid, info.activityInfo.packageName,
info.activityInfo.applicationInfo.targetSdkVersion, -1, true, false, false);
if (allowed != ActivityManager.APP_START_MODE_NORMAL) {
// We won't allow this receiver to be launched if the app has been
// completely disabled from launches, or it was not explicitly sent
// to it and the app is in a state that should not receive it
// (depending on how getAppStartModeLOSP has determined that).
if (allowed == ActivityManager.APP_START_MODE_DISABLED) {
Slog.w(TAG, "Background execution disabled: receiving "
+ r.intent + " to "
+ component.flattenToShortString());
skip = true;
} else if (((r.intent.getFlags()&Intent.FLAG_RECEIVER_EXCLUDE_BACKGROUND) != 0)
|| (r.intent.getComponent() == null
&& r.intent.getPackage() == null
&& ((r.intent.getFlags()
& Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND) == 0)
&& !isSignaturePerm(r.requiredPermissions))) {
mService.addBackgroundCheckViolationLocked(r.intent.getAction(),
component.getPackageName());
Slog.w(TAG, "Background execution not allowed: receiving "
+ r.intent + " to "
+ component.flattenToShortString());
skip = true;
}
}
}
if (!skip && !Intent.ACTION_SHUTDOWN.equals(r.intent.getAction())
&& !mService.mUserController
.isUserRunning(UserHandle.getUserId(info.activityInfo.applicationInfo.uid),
0 /* flags */)) {
skip = true;
Slog.w(TAG,
"Skipping delivery to " + info.activityInfo.packageName + " / "
+ info.activityInfo.applicationInfo.uid + " : user is not running");
}
if (!skip && r.excludedPermissions != null && r.excludedPermissions.length > 0) {
for (int i = 0; i < r.excludedPermissions.length; i++) {
String excludedPermission = r.excludedPermissions[i];
try {
perm = AppGlobals.getPackageManager()
.checkPermission(excludedPermission,
info.activityInfo.applicationInfo.packageName,
UserHandle
.getUserId(info.activityInfo.applicationInfo.uid));
} catch (RemoteException e) {
perm = PackageManager.PERMISSION_DENIED;
}
int appOp = AppOpsManager.permissionToOpCode(excludedPermission);
if (appOp != AppOpsManager.OP_NONE) {
// When there is an app op associated with the permission,
// skip when both the permission and the app op are
// granted.
if ((perm == PackageManager.PERMISSION_GRANTED) && (
mService.getAppOpsManager().checkOpNoThrow(appOp,
info.activityInfo.applicationInfo.uid,
info.activityInfo.packageName)
== AppOpsManager.MODE_ALLOWED)) {
skip = true;
break;
}
} else {
// When there is no app op associated with the permission,
// skip when permission is granted.
if (perm == PackageManager.PERMISSION_GRANTED) {
skip = true;
break;
}
}
}
}
// Check that the receiver does *not* belong to any of the excluded packages
if (!skip && r.excludedPackages != null && r.excludedPackages.length > 0) {
if (ArrayUtils.contains(r.excludedPackages, component.getPackageName())) {
Slog.w(TAG, "Skipping delivery of excluded package "
+ r.intent + " to "
+ component.flattenToShortString()
+ " excludes package " + component.getPackageName()
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
}
}
if (!skip && info.activityInfo.applicationInfo.uid != Process.SYSTEM_UID &&
r.requiredPermissions != null && r.requiredPermissions.length > 0) {
for (int i = 0; i < r.requiredPermissions.length; i++) {
String requiredPermission = r.requiredPermissions[i];
try {
perm = AppGlobals.getPackageManager().
checkPermission(requiredPermission,
info.activityInfo.applicationInfo.packageName,
UserHandle
.getUserId(info.activityInfo.applicationInfo.uid));
} catch (RemoteException e) {
perm = PackageManager.PERMISSION_DENIED;
}
if (perm != PackageManager.PERMISSION_GRANTED) {
Slog.w(TAG, "Permission Denial: receiving "
+ r.intent + " to "
+ component.flattenToShortString()
+ " requires " + requiredPermission
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
skip = true;
break;
}
int appOp = AppOpsManager.permissionToOpCode(requiredPermission);
if (appOp != AppOpsManager.OP_NONE && appOp != r.appOp) {
if (!noteOpForManifestReceiver(appOp, r, info, component)) {
skip = true;
break;
}
}
}
}
if (!skip && r.appOp != AppOpsManager.OP_NONE) {
if (!noteOpForManifestReceiver(r.appOp, r, info, component)) {
skip = true;
}
}
if (skip) {
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Skipping delivery of ordered [" + mQueueName + "] "
+ r + " for reason described above");
r.delivery[recIdx] = BroadcastRecord.DELIVERY_SKIPPED;
r.receiver = null;
r.curFilter = null;
r.state = BroadcastRecord.IDLE;
r.manifestSkipCount++;
scheduleBroadcastsLocked();
return;
}
r.manifestCount++;
r.delivery[recIdx] = BroadcastRecord.DELIVERY_DELIVERED;
r.state = BroadcastRecord.APP_RECEIVE;
r.curComponent = component;
r.curReceiver = info.activityInfo;
if (DEBUG_MU && r.callingUid > UserHandle.PER_USER_RANGE) {
Slog.v(TAG_MU, "Updated broadcast record activity info for secondary user, "
+ info.activityInfo + ", callingUid = " + r.callingUid + ", uid = "
+ receiverUid);
}
final boolean isActivityCapable =
(brOptions != null && brOptions.getTemporaryAppAllowlistDuration() > 0);
maybeScheduleTempAllowlistLocked(receiverUid, r, brOptions);
// Report that a component is used for explicit broadcasts.
if (r.intent.getComponent() != null && r.curComponent != null
&& !TextUtils.equals(r.curComponent.getPackageName(), r.callerPackage)) {
mService.mUsageStatsService.reportEvent(
r.curComponent.getPackageName(), r.userId, Event.APP_COMPONENT_USED);
}
// Broadcast is being executed, its package can't be stopped.
try {
AppGlobals.getPackageManager().setPackageStoppedState(
r.curComponent.getPackageName(), false, r.userId);
} catch (RemoteException e) {
} catch (IllegalArgumentException e) {
Slog.w(TAG, "Failed trying to unstop package "
+ r.curComponent.getPackageName() + ": " + e);
}
// Is this receiver's application already running?
if (app != null && app.getThread() != null && !app.isKilled()) {
try {
app.addPackage(info.activityInfo.packageName,
info.activityInfo.applicationInfo.longVersionCode, mService.mProcessStats);
maybeAddAllowBackgroundActivityStartsToken(app, r);
processCurBroadcastLocked(r, app);
return;
} catch (RemoteException e) {
Slog.w(TAG, "Exception when sending broadcast to "
+ r.curComponent, e);
} catch (RuntimeException e) {
Slog.wtf(TAG, "Failed sending broadcast to "
+ r.curComponent + " with " + r.intent, e);
// If some unexpected exception happened, just skip
// this broadcast. At this point we are not in the call
// from a client, so throwing an exception out from here
// will crash the entire system instead of just whoever
// sent the broadcast.
logBroadcastReceiverDiscardLocked(r);
finishReceiverLocked(r, r.resultCode, r.resultData,
r.resultExtras, r.resultAbort, false);
scheduleBroadcastsLocked();
// We need to reset the state if we failed to start the receiver.
r.state = BroadcastRecord.IDLE;
return;
}
// If a dead object exception was thrown -- fall through to
// restart the application.
}
// Not running -- get it started, to be executed when the app comes up.
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Need to start app ["
+ mQueueName + "] " + targetProcess + " for broadcast " + r);
r.curApp = mService.startProcessLocked(targetProcess,
info.activityInfo.applicationInfo, true,
r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND,
new HostingRecord("broadcast", r.curComponent), isActivityCapable
? ZYGOTE_POLICY_FLAG_LATENCY_SENSITIVE : ZYGOTE_POLICY_FLAG_EMPTY,
(r.intent.getFlags() & Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false);
if (r.curApp == null) {
// Ah, this recipient is unavailable. Finish it if necessary,
// and mark the broadcast record as ready for the next.
Slog.w(TAG, "Unable to launch app "
+ info.activityInfo.applicationInfo.packageName + "/"
+ receiverUid + " for broadcast "
+ r.intent + ": process is bad");
logBroadcastReceiverDiscardLocked(r);
finishReceiverLocked(r, r.resultCode, r.resultData,
r.resultExtras, r.resultAbort, false);
scheduleBroadcastsLocked();
r.state = BroadcastRecord.IDLE;
return;
}
maybeAddAllowBackgroundActivityStartsToken(r.curApp, r);
mPendingBroadcast = r;
mPendingBroadcastRecvIndex = recIdx;
}
private boolean noteOpForManifestReceiver(int appOp, BroadcastRecord r, ResolveInfo info,
ComponentName component) {
if (info.activityInfo.attributionTags == null) {
return noteOpForManifestReceiverInner(appOp, r, info, component, null);
} else {
// Attribution tags provided, noteOp each tag
for (String tag : info.activityInfo.attributionTags) {
if (!noteOpForManifestReceiverInner(appOp, r, info, component, tag)) {
return false;
}
}
return true;
}
}
private boolean noteOpForManifestReceiverInner(int appOp, BroadcastRecord r, ResolveInfo info,
ComponentName component, String tag) {
if (mService.getAppOpsManager().noteOpNoThrow(appOp,
info.activityInfo.applicationInfo.uid,
info.activityInfo.packageName,
tag,
"Broadcast delivered to " + info.activityInfo.name)
!= AppOpsManager.MODE_ALLOWED) {
Slog.w(TAG, "Appop Denial: receiving "
+ r.intent + " to "
+ component.flattenToShortString()
+ " requires appop " + AppOpsManager.opToName(appOp)
+ " due to sender " + r.callerPackage
+ " (uid " + r.callingUid + ")");
return false;
}
return true;
}
private void maybeAddAllowBackgroundActivityStartsToken(ProcessRecord proc, BroadcastRecord r) {
if (r == null || proc == null || !r.allowBackgroundActivityStarts) {
return;
}
String msgToken = (proc.toShortString() + r.toString()).intern();
// first, if there exists a past scheduled request to remove this token, drop
// that request - we don't want the token to be swept from under our feet...
mHandler.removeCallbacksAndMessages(msgToken);
// ...then add the token
proc.addOrUpdateAllowBackgroundActivityStartsToken(r, r.mBackgroundActivityStartsToken);
}
final void setBroadcastTimeoutLocked(long timeoutTime) {
if (! mPendingBroadcastTimeoutMessage) {
Message msg = mHandler.obtainMessage(BROADCAST_TIMEOUT_MSG, this);
mHandler.sendMessageAtTime(msg, timeoutTime);
mPendingBroadcastTimeoutMessage = true;
}
}
final void cancelBroadcastTimeoutLocked() {
if (mPendingBroadcastTimeoutMessage) {
mHandler.removeMessages(BROADCAST_TIMEOUT_MSG, this);
mPendingBroadcastTimeoutMessage = false;
}
}
final void broadcastTimeoutLocked(boolean fromMsg) {
if (fromMsg) {
mPendingBroadcastTimeoutMessage = false;
}
if (mDispatcher.isEmpty() || mDispatcher.getActiveBroadcastLocked() == null) {
return;
}
long now = SystemClock.uptimeMillis();
BroadcastRecord r = mDispatcher.getActiveBroadcastLocked();
if (fromMsg) {
if (!mService.mProcessesReady) {
// Only process broadcast timeouts if the system is ready; some early
// broadcasts do heavy work setting up system facilities
return;
}
// If the broadcast is generally exempt from timeout tracking, we're done
if (r.timeoutExempt) {
if (DEBUG_BROADCAST) {
Slog.i(TAG_BROADCAST, "Broadcast timeout but it's exempt: "
+ r.intent.getAction());
}
return;
}
long timeoutTime = r.receiverTime + mConstants.TIMEOUT;
if (timeoutTime > now) {
// We can observe premature timeouts because we do not cancel and reset the
// broadcast timeout message after each receiver finishes. Instead, we set up
// an initial timeout then kick it down the road a little further as needed
// when it expires.
if (DEBUG_BROADCAST) Slog.v(TAG_BROADCAST,
"Premature timeout ["
+ mQueueName + "] @ " + now + ": resetting BROADCAST_TIMEOUT_MSG for "
+ timeoutTime);
setBroadcastTimeoutLocked(timeoutTime);
return;
}
}
if (r.state == BroadcastRecord.WAITING_SERVICES) {
// In this case the broadcast had already finished, but we had decided to wait
// for started services to finish as well before going on. So if we have actually
// waited long enough time timeout the broadcast, let's give up on the whole thing
// and just move on to the next.
Slog.i(TAG, "Waited long enough for: " + (r.curComponent != null
? r.curComponent.flattenToShortString() : "(null)"));
r.curComponent = null;
r.state = BroadcastRecord.IDLE;
processNextBroadcastLocked(false, false);
return;
}
// If the receiver app is being debugged we quietly ignore unresponsiveness, just
// tidying up and moving on to the next broadcast without crashing or ANRing this
// app just because it's stopped at a breakpoint.
final boolean debugging = (r.curApp != null && r.curApp.isDebugging());
Slog.w(TAG, "Timeout of broadcast " + r + " - receiver=" + r.receiver
+ ", started " + (now - r.receiverTime) + "ms ago");
r.receiverTime = now;
if (!debugging) {
r.anrCount++;
}
ProcessRecord app = null;
String anrMessage = null;
Object curReceiver;
if (r.nextReceiver > 0) {
curReceiver = r.receivers.get(r.nextReceiver-1);
r.delivery[r.nextReceiver-1] = BroadcastRecord.DELIVERY_TIMEOUT;
} else {
curReceiver = r.curReceiver;
}
Slog.w(TAG, "Receiver during timeout of " + r + " : " + curReceiver);
logBroadcastReceiverDiscardLocked(r);
if (curReceiver != null && curReceiver instanceof BroadcastFilter) {
BroadcastFilter bf = (BroadcastFilter)curReceiver;
if (bf.receiverList.pid != 0
&& bf.receiverList.pid != ActivityManagerService.MY_PID) {
synchronized (mService.mPidsSelfLocked) {
app = mService.mPidsSelfLocked.get(
bf.receiverList.pid);
}
}
} else {
app = r.curApp;
}
if (app != null) {
anrMessage = "Broadcast of " + r.intent.toString();
}
if (mPendingBroadcast == r) {
mPendingBroadcast = null;
}
// Move on to the next receiver.
finishReceiverLocked(r, r.resultCode, r.resultData,
r.resultExtras, r.resultAbort, false);
scheduleBroadcastsLocked();
if (!debugging && anrMessage != null) {
mService.mAnrHelper.appNotResponding(app, anrMessage);
}
}
private final int ringAdvance(int x, final int increment, final int ringSize) {
x += increment;
if (x < 0) return (ringSize - 1);
else if (x >= ringSize) return 0;
else return x;
}
private final void addBroadcastToHistoryLocked(BroadcastRecord original) {
if (original.callingUid < 0) {
// This was from a registerReceiver() call; ignore it.
return;
}
original.finishTime = SystemClock.uptimeMillis();
if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) {
Trace.asyncTraceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER,
createBroadcastTraceTitle(original, BroadcastRecord.DELIVERY_DELIVERED),
System.identityHashCode(original));
}
// Note sometimes (only for sticky broadcasts?) we reuse BroadcastRecords,
// So don't change the incoming record directly.
final BroadcastRecord historyRecord = original.maybeStripForHistory();
mBroadcastHistory[mHistoryNext] = historyRecord;
mHistoryNext = ringAdvance(mHistoryNext, 1, MAX_BROADCAST_HISTORY);
mBroadcastSummaryHistory[mSummaryHistoryNext] = historyRecord.intent;
mSummaryHistoryEnqueueTime[mSummaryHistoryNext] = historyRecord.enqueueClockTime;
mSummaryHistoryDispatchTime[mSummaryHistoryNext] = historyRecord.dispatchClockTime;
mSummaryHistoryFinishTime[mSummaryHistoryNext] = System.currentTimeMillis();
mSummaryHistoryNext = ringAdvance(mSummaryHistoryNext, 1, MAX_BROADCAST_SUMMARY_HISTORY);
}
boolean cleanupDisabledPackageReceiversLocked(
String packageName, Set<String> filterByClasses, int userId, boolean doit) {
boolean didSomething = false;
for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) {
didSomething |= mParallelBroadcasts.get(i).cleanupDisabledPackageReceiversLocked(
packageName, filterByClasses, userId, doit);
if (!doit && didSomething) {
return true;
}
}
didSomething |= mDispatcher.cleanupDisabledPackageReceiversLocked(packageName,
filterByClasses, userId, doit);
return didSomething;
}
final void logBroadcastReceiverDiscardLocked(BroadcastRecord r) {
final int logIndex = r.nextReceiver - 1;
if (logIndex >= 0 && logIndex < r.receivers.size()) {
Object curReceiver = r.receivers.get(logIndex);
if (curReceiver instanceof BroadcastFilter) {
BroadcastFilter bf = (BroadcastFilter) curReceiver;
EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_FILTER,
bf.owningUserId, System.identityHashCode(r),
r.intent.getAction(), logIndex, System.identityHashCode(bf));
} else {
ResolveInfo ri = (ResolveInfo) curReceiver;
EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP,
UserHandle.getUserId(ri.activityInfo.applicationInfo.uid),
System.identityHashCode(r), r.intent.getAction(), logIndex, ri.toString());
}
} else {
if (logIndex < 0) Slog.w(TAG,
"Discarding broadcast before first receiver is invoked: " + r);
EventLog.writeEvent(EventLogTags.AM_BROADCAST_DISCARD_APP,
-1, System.identityHashCode(r),
r.intent.getAction(),
r.nextReceiver,
"NONE");
}
}
private String createBroadcastTraceTitle(BroadcastRecord record, int state) {
return formatSimple("Broadcast %s from %s (%s) %s",
state == BroadcastRecord.DELIVERY_PENDING ? "in queue" : "dispatched",
record.callerPackage == null ? "" : record.callerPackage,
record.callerApp == null ? "process unknown" : record.callerApp.toShortString(),
record.intent == null ? "" : record.intent.getAction());
}
boolean isIdle() {
return mParallelBroadcasts.isEmpty() && mDispatcher.isEmpty()
&& (mPendingBroadcast == null);
}
// Used by wait-for-broadcast-idle : fast-forward all current deferrals to
// be immediately deliverable.
void cancelDeferrals() {
synchronized (mService) {
mDispatcher.cancelDeferralsLocked();
scheduleBroadcastsLocked();
}
}
String describeState() {
synchronized (mService) {
return mParallelBroadcasts.size() + " parallel; "
+ mDispatcher.describeStateLocked();
}
}
void dumpDebug(ProtoOutputStream proto, long fieldId) {
long token = proto.start(fieldId);
proto.write(BroadcastQueueProto.QUEUE_NAME, mQueueName);
int N;
N = mParallelBroadcasts.size();
for (int i = N - 1; i >= 0; i--) {
mParallelBroadcasts.get(i).dumpDebug(proto, BroadcastQueueProto.PARALLEL_BROADCASTS);
}
mDispatcher.dumpDebug(proto, BroadcastQueueProto.ORDERED_BROADCASTS);
if (mPendingBroadcast != null) {
mPendingBroadcast.dumpDebug(proto, BroadcastQueueProto.PENDING_BROADCAST);
}
int lastIndex = mHistoryNext;
int ringIndex = lastIndex;
do {
// increasing index = more recent entry, and we want to print the most
// recent first and work backwards, so we roll through the ring backwards.
ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY);
BroadcastRecord r = mBroadcastHistory[ringIndex];
if (r != null) {
r.dumpDebug(proto, BroadcastQueueProto.HISTORICAL_BROADCASTS);
}
} while (ringIndex != lastIndex);
lastIndex = ringIndex = mSummaryHistoryNext;
do {
ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY);
Intent intent = mBroadcastSummaryHistory[ringIndex];
if (intent == null) {
continue;
}
long summaryToken = proto.start(BroadcastQueueProto.HISTORICAL_BROADCASTS_SUMMARY);
intent.dumpDebug(proto, BroadcastQueueProto.BroadcastSummary.INTENT,
false, true, true, false);
proto.write(BroadcastQueueProto.BroadcastSummary.ENQUEUE_CLOCK_TIME_MS,
mSummaryHistoryEnqueueTime[ringIndex]);
proto.write(BroadcastQueueProto.BroadcastSummary.DISPATCH_CLOCK_TIME_MS,
mSummaryHistoryDispatchTime[ringIndex]);
proto.write(BroadcastQueueProto.BroadcastSummary.FINISH_CLOCK_TIME_MS,
mSummaryHistoryFinishTime[ringIndex]);
proto.end(summaryToken);
} while (ringIndex != lastIndex);
proto.end(token);
}
final boolean dumpLocked(FileDescriptor fd, PrintWriter pw, String[] args,
int opti, boolean dumpAll, String dumpPackage, boolean needSep) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
if (!mParallelBroadcasts.isEmpty() || !mDispatcher.isEmpty()
|| mPendingBroadcast != null) {
boolean printed = false;
for (int i = mParallelBroadcasts.size() - 1; i >= 0; i--) {
BroadcastRecord br = mParallelBroadcasts.get(i);
if (dumpPackage != null && !dumpPackage.equals(br.callerPackage)) {
continue;
}
if (!printed) {
if (needSep) {
pw.println();
}
needSep = true;
printed = true;
pw.println(" Active broadcasts [" + mQueueName + "]:");
}
pw.println(" Active Broadcast " + mQueueName + " #" + i + ":");
br.dump(pw, " ", sdf);
}
mDispatcher.dumpLocked(pw, dumpPackage, mQueueName, sdf);
if (dumpPackage == null || (mPendingBroadcast != null
&& dumpPackage.equals(mPendingBroadcast.callerPackage))) {
pw.println();
pw.println(" Pending broadcast [" + mQueueName + "]:");
if (mPendingBroadcast != null) {
mPendingBroadcast.dump(pw, " ", sdf);
} else {
pw.println(" (null)");
}
needSep = true;
}
}
mConstants.dump(pw);
int i;
boolean printed = false;
i = -1;
int lastIndex = mHistoryNext;
int ringIndex = lastIndex;
do {
// increasing index = more recent entry, and we want to print the most
// recent first and work backwards, so we roll through the ring backwards.
ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_HISTORY);
BroadcastRecord r = mBroadcastHistory[ringIndex];
if (r == null) {
continue;
}
i++; // genuine record of some sort even if we're filtering it out
if (dumpPackage != null && !dumpPackage.equals(r.callerPackage)) {
continue;
}
if (!printed) {
if (needSep) {
pw.println();
}
needSep = true;
pw.println(" Historical broadcasts [" + mQueueName + "]:");
printed = true;
}
if (dumpAll) {
pw.print(" Historical Broadcast " + mQueueName + " #");
pw.print(i); pw.println(":");
r.dump(pw, " ", sdf);
} else {
pw.print(" #"); pw.print(i); pw.print(": "); pw.println(r);
pw.print(" ");
pw.println(r.intent.toShortString(false, true, true, false));
if (r.targetComp != null && r.targetComp != r.intent.getComponent()) {
pw.print(" targetComp: "); pw.println(r.targetComp.toShortString());
}
Bundle bundle = r.intent.getExtras();
if (bundle != null) {
pw.print(" extras: "); pw.println(bundle.toString());
}
}
} while (ringIndex != lastIndex);
if (dumpPackage == null) {
lastIndex = ringIndex = mSummaryHistoryNext;
if (dumpAll) {
printed = false;
i = -1;
} else {
// roll over the 'i' full dumps that have already been issued
for (int j = i;
j > 0 && ringIndex != lastIndex;) {
ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY);
BroadcastRecord r = mBroadcastHistory[ringIndex];
if (r == null) {
continue;
}
j--;
}
}
// done skipping; dump the remainder of the ring. 'i' is still the ordinal within
// the overall broadcast history.
do {
ringIndex = ringAdvance(ringIndex, -1, MAX_BROADCAST_SUMMARY_HISTORY);
Intent intent = mBroadcastSummaryHistory[ringIndex];
if (intent == null) {
continue;
}
if (!printed) {
if (needSep) {
pw.println();
}
needSep = true;
pw.println(" Historical broadcasts summary [" + mQueueName + "]:");
printed = true;
}
if (!dumpAll && i >= 50) {
pw.println(" ...");
break;
}
i++;
pw.print(" #"); pw.print(i); pw.print(": ");
pw.println(intent.toShortString(false, true, true, false));
pw.print(" ");
TimeUtils.formatDuration(mSummaryHistoryDispatchTime[ringIndex]
- mSummaryHistoryEnqueueTime[ringIndex], pw);
pw.print(" dispatch ");
TimeUtils.formatDuration(mSummaryHistoryFinishTime[ringIndex]
- mSummaryHistoryDispatchTime[ringIndex], pw);
pw.println(" finish");
pw.print(" enq=");
pw.print(sdf.format(new Date(mSummaryHistoryEnqueueTime[ringIndex])));
pw.print(" disp=");
pw.print(sdf.format(new Date(mSummaryHistoryDispatchTime[ringIndex])));
pw.print(" fin=");
pw.println(sdf.format(new Date(mSummaryHistoryFinishTime[ringIndex])));
Bundle bundle = intent.getExtras();
if (bundle != null) {
pw.print(" extras: "); pw.println(bundle.toString());
}
} while (ringIndex != lastIndex);
}
return needSep;
}
}