--- /dev/null
+/*
+ * Copyright (C) 2017 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.job;
+
+import android.app.IActivityManager;
+import android.content.ClipData;
+import android.content.ContentProvider;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.util.Slog;
+
+import java.io.PrintWriter;
+import java.util.ArrayList;
+
+public class GrantedUriPermissions {
+ private final int mGrantFlags;
+ private final int mSourceUserId;
+ private final String mTag;
+ private final IBinder mPermissionOwner;
+ private final ArrayList<Uri> mUris = new ArrayList<>();
+
+ private GrantedUriPermissions(IActivityManager am, int grantFlags, int uid, String tag)
+ throws RemoteException {
+ mGrantFlags = grantFlags;
+ mSourceUserId = UserHandle.getUserId(uid);
+ mTag = tag;
+ mPermissionOwner = am.newUriPermissionOwner("job: " + tag);
+ }
+
+ public void revoke(IActivityManager am) {
+ for (int i = mUris.size()-1; i >= 0; i--) {
+ try {
+ am.revokeUriPermissionFromOwner(mPermissionOwner, mUris.get(i),
+ mGrantFlags, mSourceUserId);
+ } catch (RemoteException e) {
+ }
+ }
+ mUris.clear();
+ }
+
+ public static boolean checkGrantFlags(int grantFlags) {
+ return (grantFlags & (Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+ |Intent.FLAG_GRANT_READ_URI_PERMISSION)) != 0;
+ }
+
+ public static GrantedUriPermissions createFromIntent(IActivityManager am, Intent intent,
+ int sourceUid, String targetPackage, int targetUserId, String tag) {
+ int grantFlags = intent.getFlags();
+ if (!checkGrantFlags(grantFlags)) {
+ return null;
+ }
+
+ GrantedUriPermissions perms = null;
+
+ Uri data = intent.getData();
+ if (data != null) {
+ perms = grantUri(am, data, sourceUid, targetPackage, targetUserId, grantFlags, tag,
+ perms);
+ }
+
+ ClipData clip = intent.getClipData();
+ if (clip != null) {
+ perms = grantClip(am, clip, sourceUid, targetPackage, targetUserId, grantFlags, tag,
+ perms);
+ }
+
+ return perms;
+ }
+
+ public static GrantedUriPermissions createFromClip(IActivityManager am, ClipData clip,
+ int sourceUid, String targetPackage, int targetUserId, int grantFlags, String tag) {
+ if (!checkGrantFlags(grantFlags)) {
+ return null;
+ }
+ GrantedUriPermissions perms = null;
+ if (clip != null) {
+ perms = grantClip(am, clip, sourceUid, targetPackage, targetUserId, grantFlags,
+ tag, perms);
+ }
+ return perms;
+ }
+
+ private static GrantedUriPermissions grantClip(IActivityManager am, ClipData clip,
+ int sourceUid, String targetPackage, int targetUserId, int grantFlags, String tag,
+ GrantedUriPermissions curPerms) {
+ final int N = clip.getItemCount();
+ for (int i = 0; i < N; i++) {
+ curPerms = grantItem(am, clip.getItemAt(i), sourceUid, targetPackage, targetUserId,
+ grantFlags, tag, curPerms);
+ }
+ return curPerms;
+ }
+
+ private static GrantedUriPermissions grantUri(IActivityManager am, Uri uri,
+ int sourceUid, String targetPackage, int targetUserId, int grantFlags, String tag,
+ GrantedUriPermissions curPerms) {
+ try {
+ int sourceUserId = ContentProvider.getUserIdFromUri(uri,
+ UserHandle.getUserId(sourceUid));
+ uri = ContentProvider.getUriWithoutUserId(uri);
+ if (curPerms == null) {
+ curPerms = new GrantedUriPermissions(am, grantFlags, sourceUid, tag);
+ }
+ am.grantUriPermissionFromOwner(curPerms.mPermissionOwner, sourceUid, targetPackage,
+ uri, grantFlags, sourceUserId, targetUserId);
+ curPerms.mUris.add(uri);
+ } catch (RemoteException e) {
+ Slog.e("JobScheduler", "AM dead");
+ }
+ return curPerms;
+ }
+
+ private static GrantedUriPermissions grantItem(IActivityManager am, ClipData.Item item,
+ int sourceUid, String targetPackage, int targetUserId, int grantFlags, String tag,
+ GrantedUriPermissions curPerms) {
+ if (item.getUri() != null) {
+ curPerms = grantUri(am, item.getUri(), sourceUid, targetPackage, targetUserId,
+ grantFlags, tag, curPerms);
+ }
+ Intent intent = item.getIntent();
+ if (intent != null && intent.getData() != null) {
+ curPerms = grantUri(am, intent.getData(), sourceUid, targetPackage, targetUserId,
+ grantFlags, tag, curPerms);
+ }
+ return curPerms;
+ }
+
+ // Dumpsys infrastructure
+ public void dump(PrintWriter pw, String prefix) {
+ pw.print(prefix); pw.print("mGrantFlags=0x"); pw.print(Integer.toHexString(mGrantFlags));
+ pw.print(" mSourceUserId="); pw.println(mSourceUserId);
+ pw.print(prefix); pw.print("mTag="); pw.println(mTag);
+ pw.print(prefix); pw.print("mPermissionOwner="); pw.println(mPermissionOwner);
+ for (int i = 0; i < mUris.size(); i++) {
+ pw.print(prefix); pw.print("#"); pw.print(i); pw.print(": ");
+ pw.println(mUris.get(i));
+ }
+ }
+}
import com.android.internal.app.IBatteryStats;
import com.android.server.job.controllers.JobStatus;
-import java.util.concurrent.atomic.AtomicBoolean;
-
/**
* Handles client binding and lifecycle of a job. Jobs execute one at a time on an instance of this
* class.
* job lands, and again when it is complete.
* - Cancelling is trickier, because there are also interactions from the client. It's possible
* the {@link com.android.server.job.JobServiceContext.JobServiceHandler} tries to process a
- * {@link #MSG_CANCEL} after the client has already finished. This is handled by having
- * {@link com.android.server.job.JobServiceContext.JobServiceHandler#handleCancelH} check whether
+ * {@link #doCancelLocked(int)} after the client has already finished. This is handled by having
+ * {@link com.android.server.job.JobServiceContext.JobServiceHandler#handleCancelLocked} check whether
* the context is still valid.
- * To mitigate this, tearing down the context removes all messages from the handler, including any
- * tardy {@link #MSG_CANCEL}s. Additionally, we avoid sending duplicate onStopJob()
+ * To mitigate this, we avoid sending duplicate onStopJob()
* calls to the client after they've specified jobFinished().
*/
public class JobServiceContext extends IJobCallback.Stub implements ServiceConnection {
private static final boolean DEBUG = JobSchedulerService.DEBUG;
private static final String TAG = "JobServiceContext";
- /** Define the maximum # of jobs allowed to run on a service at once. */
- private static final int defaultMaxActiveJobsPerService =
- ActivityManager.isLowRamDeviceStatic() ? 1 : 3;
/** Amount of time a job is allowed to execute for before being considered timed-out. */
private static final long EXECUTING_TIMESLICE_MILLIS = 10 * 60 * 1000; // 10mins.
/** Amount of time the JobScheduler waits for the initial service launch+bind. */
// Messages that result from interactions with the client service.
/** System timed out waiting for a response. */
private static final int MSG_TIMEOUT = 0;
- /** Received a callback from client. */
- private static final int MSG_CALLBACK = 1;
- /** Run through list and start any ready jobs.*/
- private static final int MSG_SERVICE_BOUND = 2;
- /** Cancel a job. */
- private static final int MSG_CANCEL = 3;
- /** Shutdown the job. Used when the client crashes and we can't die gracefully.*/
- private static final int MSG_SHUTDOWN_EXECUTION = 4;
public static final int NO_PREFERRED_UID = -1;
private JobParameters mParams;
@VisibleForTesting
int mVerb;
- private AtomicBoolean mCancelled = new AtomicBoolean();
+ private boolean mCancelled;
/**
* All the information maintained about the job currently being executed.
}
/** Called externally when a job that was scheduled for execution should be cancelled. */
- void cancelExecutingJob(int reason) {
- mCallbackHandler.obtainMessage(MSG_CANCEL, reason, 0 /* unused */).sendToTarget();
+ void cancelExecutingJobLocked(int reason) {
+ doCancelLocked(reason);
}
- void preemptExecutingJob() {
- Message m = mCallbackHandler.obtainMessage(MSG_CANCEL);
- m.arg1 = JobParameters.REASON_PREEMPT;
- m.sendToTarget();
+ void preemptExecutingJobLocked() {
+ doCancelLocked(JobParameters.REASON_PREEMPT);
}
int getPreferredUid() {
@Override
public void jobFinished(int jobId, boolean reschedule) {
- if (!verifyCallingUid()) {
- return;
- }
- mCallbackHandler.obtainMessage(MSG_CALLBACK, jobId, reschedule ? 1 : 0)
- .sendToTarget();
+ doCallback(reschedule);
}
@Override
public void acknowledgeStopMessage(int jobId, boolean reschedule) {
- if (!verifyCallingUid()) {
- return;
- }
- mCallbackHandler.obtainMessage(MSG_CALLBACK, jobId, reschedule ? 1 : 0)
- .sendToTarget();
+ doCallback(reschedule);
}
@Override
public void acknowledgeStartMessage(int jobId, boolean ongoing) {
- if (!verifyCallingUid()) {
- return;
- }
- mCallbackHandler.obtainMessage(MSG_CALLBACK, jobId, ongoing ? 1 : 0).sendToTarget();
+ doCallback(ongoing);
}
@Override
public JobWorkItem dequeueWork(int jobId) {
- if (!verifyCallingUid()) {
- throw new SecurityException("Bad calling uid: " + Binder.getCallingUid());
- }
- JobWorkItem work = null;
- boolean stillWorking = false;
- synchronized (mLock) {
- if (mRunningJob != null) {
- work = mRunningJob.dequeueWorkLocked();
- stillWorking = mRunningJob.hasExecutingWorkLocked();
+ final int callingUid = Binder.getCallingUid();
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ synchronized (mLock) {
+ if (!verifyCallingUidLocked(callingUid)) {
+ throw new SecurityException("Bad calling uid: " + callingUid);
+ }
+
+ final JobWorkItem work = mRunningJob.dequeueWorkLocked();
+ if (work == null && !mRunningJob.hasExecutingWorkLocked()) {
+ // This will finish the job.
+ doCallbackLocked(false);
+ }
+ return work;
}
+ } finally {
+ Binder.restoreCallingIdentity(ident);
}
- if (work == null && !stillWorking) {
- jobFinished(jobId, false);
- }
- return work;
}
@Override
public boolean completeWork(int jobId, int workId) {
- if (!verifyCallingUid()) {
- throw new SecurityException("Bad calling uid: " + Binder.getCallingUid());
- }
- synchronized (mLock) {
- if (mRunningJob != null) {
- return mRunningJob.completeWorkLocked(workId);
+ final int callingUid = Binder.getCallingUid();
+ final long ident = Binder.clearCallingIdentity();
+ try {
+ synchronized (mLock) {
+ if (!verifyCallingUidLocked(callingUid)) {
+ throw new SecurityException("Bad calling uid: " + callingUid);
+ }
+ return mRunningJob.completeWorkLocked(ActivityManager.getService(), workId);
}
- return false;
+ } finally {
+ Binder.restoreCallingIdentity(ident);
}
}
// looper and at this point we can't get any binder callbacks from the client. Better
// safe than sorry.
runningJob = mRunningJob;
- }
- if (runningJob == null || !name.equals(runningJob.getServiceComponent())) {
- mCallbackHandler.obtainMessage(MSG_SHUTDOWN_EXECUTION).sendToTarget();
- return;
- }
- this.service = IJobService.Stub.asInterface(service);
- final PowerManager pm =
- (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
- PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
- runningJob.getTag());
- wl.setWorkSource(new WorkSource(runningJob.getSourceUid()));
- wl.setReferenceCounted(false);
- wl.acquire();
- synchronized (mLock) {
+
+ if (runningJob == null || !name.equals(runningJob.getServiceComponent())) {
+ closeAndCleanupJobLocked(true /* needsReschedule */);
+ return;
+ }
+ this.service = IJobService.Stub.asInterface(service);
+ final PowerManager pm =
+ (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
+ PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+ runningJob.getTag());
+ wl.setWorkSource(new WorkSource(runningJob.getSourceUid()));
+ wl.setReferenceCounted(false);
+ wl.acquire();
+
// We use a new wakelock instance per job. In rare cases there is a race between
// teardown following job completion/cancellation and new job service spin-up
// such that if we simply assign mWakeLock to be the new instance, we orphan
mWakeLock.release();
}
mWakeLock = wl;
+ doServiceBoundLocked();
}
- mCallbackHandler.obtainMessage(MSG_SERVICE_BOUND).sendToTarget();
}
/** If the client service crashes we reschedule this job and clean up. */
@Override
public void onServiceDisconnected(ComponentName name) {
- mCallbackHandler.obtainMessage(MSG_SHUTDOWN_EXECUTION).sendToTarget();
+ synchronized (mLock) {
+ closeAndCleanupJobLocked(true /* needsReschedule */);
+ }
}
/**
* whether the client exercising the callback is the client we expect.
* @return True if the binder calling is coming from the client we expect.
*/
- private boolean verifyCallingUid() {
- synchronized (mLock) {
- if (mRunningJob == null || Binder.getCallingUid() != mRunningJob.getUid()) {
- if (DEBUG) {
- Slog.d(TAG, "Stale callback received, ignoring.");
- }
- return false;
+ private boolean verifyCallingUidLocked(final int callingUid) {
+ if (mRunningJob == null || callingUid != mRunningJob.getUid()) {
+ if (DEBUG) {
+ Slog.d(TAG, "Stale callback received, ignoring.");
}
- return true;
+ return false;
}
+ return true;
}
/**
- * Handles the lifecycle of the JobService binding/callbacks, etc. The convention within this
- * class is to append 'H' to each function name that can only be called on this handler. This
- * isn't strictly necessary because all of these functions are private, but helps clarity.
+ * Scheduling of async messages (basically timeouts at this point).
*/
private class JobServiceHandler extends Handler {
JobServiceHandler(Looper looper) {
@Override
public void handleMessage(Message message) {
switch (message.what) {
- case MSG_SERVICE_BOUND:
- doServiceBound();
- break;
- case MSG_CALLBACK:
- doCallback(message.arg2);
- break;
- case MSG_CANCEL:
- doCancel(message.arg1);
- break;
case MSG_TIMEOUT:
synchronized (mLock) {
- handleOpTimeoutH();
+ handleOpTimeoutLocked();
}
break;
- case MSG_SHUTDOWN_EXECUTION:
- closeAndCleanupJobH(true /* needsReschedule */);
- break;
default:
Slog.e(TAG, "Unrecognised message: " + message);
}
}
+ }
- void doServiceBound() {
+ void doServiceBoundLocked() {
+ removeOpTimeOutLocked();
+ handleServiceBoundLocked();
+ }
+
+ void doCallback(boolean reschedule) {
+ final int callingUid = Binder.getCallingUid();
+ final long ident = Binder.clearCallingIdentity();
+ try {
synchronized (mLock) {
- removeOpTimeOutLocked();
- handleServiceBoundH();
+ if (!verifyCallingUidLocked(callingUid)) {
+ return;
+ }
+ doCallbackLocked(reschedule);
}
+ } finally {
+ Binder.restoreCallingIdentity(ident);
}
+ }
- void doCallback(int arg2) {
- synchronized (mLock) {
- if (DEBUG) {
- Slog.d(TAG, "MSG_CALLBACK of : " + mRunningJob
- + " v:" + VERB_STRINGS[mVerb]);
- }
- removeOpTimeOutLocked();
+ void doCallbackLocked(boolean reschedule) {
+ if (DEBUG) {
+ Slog.d(TAG, "doCallback of : " + mRunningJob
+ + " v:" + VERB_STRINGS[mVerb]);
+ }
+ removeOpTimeOutLocked();
- if (mVerb == VERB_STARTING) {
- final boolean workOngoing = arg2 == 1;
- handleStartedH(workOngoing);
- } else if (mVerb == VERB_EXECUTING ||
- mVerb == VERB_STOPPING) {
- final boolean reschedule = arg2 == 1;
- handleFinishedH(reschedule);
- } else {
- if (DEBUG) {
- Slog.d(TAG, "Unrecognised callback: " + mRunningJob);
- }
- }
+ if (mVerb == VERB_STARTING) {
+ handleStartedLocked(reschedule);
+ } else if (mVerb == VERB_EXECUTING ||
+ mVerb == VERB_STOPPING) {
+ handleFinishedLocked(reschedule);
+ } else {
+ if (DEBUG) {
+ Slog.d(TAG, "Unrecognised callback: " + mRunningJob);
}
}
+ }
- void doCancel(int arg1) {
- synchronized (mLock) {
- if (mVerb == VERB_FINISHED) {
- if (DEBUG) {
- Slog.d(TAG,
- "Trying to process cancel for torn-down context, ignoring.");
- }
- return;
- }
- mParams.setStopReason(arg1);
- if (arg1 == JobParameters.REASON_PREEMPT) {
- mPreferredUid = mRunningJob != null ? mRunningJob.getUid() :
- NO_PREFERRED_UID;
- }
- handleCancelH();
+ void doCancelLocked(int arg1) {
+ if (mVerb == VERB_FINISHED) {
+ if (DEBUG) {
+ Slog.d(TAG,
+ "Trying to process cancel for torn-down context, ignoring.");
}
-
+ return;
+ }
+ mParams.setStopReason(arg1);
+ if (arg1 == JobParameters.REASON_PREEMPT) {
+ mPreferredUid = mRunningJob != null ? mRunningJob.getUid() :
+ NO_PREFERRED_UID;
}
+ handleCancelLocked();
+ }
- /** Start the job on the service. */
- private void handleServiceBoundH() {
+ /** Start the job on the service. */
+ private void handleServiceBoundLocked() {
+ if (DEBUG) {
+ Slog.d(TAG, "handleServiceBound for " + mRunningJob.toShortString());
+ }
+ if (mVerb != VERB_BINDING) {
+ Slog.e(TAG, "Sending onStartJob for a job that isn't pending. "
+ + VERB_STRINGS[mVerb]);
+ closeAndCleanupJobLocked(false /* reschedule */);
+ return;
+ }
+ if (mCancelled) {
if (DEBUG) {
- Slog.d(TAG, "MSG_SERVICE_BOUND for " + mRunningJob.toShortString());
- }
- if (mVerb != VERB_BINDING) {
- Slog.e(TAG, "Sending onStartJob for a job that isn't pending. "
- + VERB_STRINGS[mVerb]);
- closeAndCleanupJobH(false /* reschedule */);
- return;
- }
- if (mCancelled.get()) {
- if (DEBUG) {
- Slog.d(TAG, "Job cancelled while waiting for bind to complete. "
- + mRunningJob);
- }
- closeAndCleanupJobH(true /* reschedule */);
- return;
- }
- try {
- mVerb = VERB_STARTING;
- scheduleOpTimeOutLocked();
- service.startJob(mParams);
- } catch (Exception e) {
- // We catch 'Exception' because client-app malice or bugs might induce a wide
- // range of possible exception-throw outcomes from startJob() and its handling
- // of the client's ParcelableBundle extras.
- Slog.e(TAG, "Error sending onStart message to '" +
- mRunningJob.getServiceComponent().getShortClassName() + "' ", e);
+ Slog.d(TAG, "Job cancelled while waiting for bind to complete. "
+ + mRunningJob);
}
+ closeAndCleanupJobLocked(true /* reschedule */);
+ return;
}
+ try {
+ mVerb = VERB_STARTING;
+ scheduleOpTimeOutLocked();
+ service.startJob(mParams);
+ } catch (Exception e) {
+ // We catch 'Exception' because client-app malice or bugs might induce a wide
+ // range of possible exception-throw outcomes from startJob() and its handling
+ // of the client's ParcelableBundle extras.
+ Slog.e(TAG, "Error sending onStart message to '" +
+ mRunningJob.getServiceComponent().getShortClassName() + "' ", e);
+ }
+ }
- /**
- * State behaviours.
- * VERB_STARTING -> Successful start, change job to VERB_EXECUTING and post timeout.
- * _PENDING -> Error
- * _EXECUTING -> Error
- * _STOPPING -> Error
- */
- private void handleStartedH(boolean workOngoing) {
- switch (mVerb) {
- case VERB_STARTING:
- mVerb = VERB_EXECUTING;
- if (!workOngoing) {
- // Job is finished already so fast-forward to handleFinished.
- handleFinishedH(false);
- return;
- }
- if (mCancelled.get()) {
- if (DEBUG) {
- Slog.d(TAG, "Job cancelled while waiting for onStartJob to complete.");
- }
- // Cancelled *while* waiting for acknowledgeStartMessage from client.
- handleCancelH();
- return;
+ /**
+ * State behaviours.
+ * VERB_STARTING -> Successful start, change job to VERB_EXECUTING and post timeout.
+ * _PENDING -> Error
+ * _EXECUTING -> Error
+ * _STOPPING -> Error
+ */
+ private void handleStartedLocked(boolean workOngoing) {
+ switch (mVerb) {
+ case VERB_STARTING:
+ mVerb = VERB_EXECUTING;
+ if (!workOngoing) {
+ // Job is finished already so fast-forward to handleFinished.
+ handleFinishedLocked(false);
+ return;
+ }
+ if (mCancelled) {
+ if (DEBUG) {
+ Slog.d(TAG, "Job cancelled while waiting for onStartJob to complete.");
}
- scheduleOpTimeOutLocked();
- break;
- default:
- Slog.e(TAG, "Handling started job but job wasn't starting! Was "
- + VERB_STRINGS[mVerb] + ".");
+ // Cancelled *while* waiting for acknowledgeStartMessage from client.
+ handleCancelLocked();
return;
- }
+ }
+ scheduleOpTimeOutLocked();
+ break;
+ default:
+ Slog.e(TAG, "Handling started job but job wasn't starting! Was "
+ + VERB_STRINGS[mVerb] + ".");
+ return;
}
+ }
- /**
- * VERB_EXECUTING -> Client called jobFinished(), clean up and notify done.
- * _STOPPING -> Successful finish, clean up and notify done.
- * _STARTING -> Error
- * _PENDING -> Error
- */
- private void handleFinishedH(boolean reschedule) {
- switch (mVerb) {
- case VERB_EXECUTING:
- case VERB_STOPPING:
- closeAndCleanupJobH(reschedule);
- break;
- default:
- Slog.e(TAG, "Got an execution complete message for a job that wasn't being" +
- "executed. Was " + VERB_STRINGS[mVerb] + ".");
- }
+ /**
+ * VERB_EXECUTING -> Client called jobFinished(), clean up and notify done.
+ * _STOPPING -> Successful finish, clean up and notify done.
+ * _STARTING -> Error
+ * _PENDING -> Error
+ */
+ private void handleFinishedLocked(boolean reschedule) {
+ switch (mVerb) {
+ case VERB_EXECUTING:
+ case VERB_STOPPING:
+ closeAndCleanupJobLocked(reschedule);
+ break;
+ default:
+ Slog.e(TAG, "Got an execution complete message for a job that wasn't being" +
+ "executed. Was " + VERB_STRINGS[mVerb] + ".");
}
+ }
- /**
- * A job can be in various states when a cancel request comes in:
- * VERB_BINDING -> Cancelled before bind completed. Mark as cancelled and wait for
- * {@link #onServiceConnected(android.content.ComponentName, android.os.IBinder)}
- * _STARTING -> Mark as cancelled and wait for
- * {@link JobServiceContext#acknowledgeStartMessage(int, boolean)}
- * _EXECUTING -> call {@link #sendStopMessageH}}, but only if there are no callbacks
- * in the message queue.
- * _ENDING -> No point in doing anything here, so we ignore.
- */
- private void handleCancelH() {
- if (JobSchedulerService.DEBUG) {
- Slog.d(TAG, "Handling cancel for: " + mRunningJob.getJobId() + " "
- + VERB_STRINGS[mVerb]);
- }
- switch (mVerb) {
- case VERB_BINDING:
- case VERB_STARTING:
- mCancelled.set(true);
- break;
- case VERB_EXECUTING:
- if (hasMessages(MSG_CALLBACK)) {
- // If the client has called jobFinished, ignore this cancel.
- return;
- }
- sendStopMessageH();
- break;
- case VERB_STOPPING:
- // Nada.
- break;
- default:
- Slog.e(TAG, "Cancelling a job without a valid verb: " + mVerb);
- break;
- }
+ /**
+ * A job can be in various states when a cancel request comes in:
+ * VERB_BINDING -> Cancelled before bind completed. Mark as cancelled and wait for
+ * {@link #onServiceConnected(android.content.ComponentName, android.os.IBinder)}
+ * _STARTING -> Mark as cancelled and wait for
+ * {@link JobServiceContext#acknowledgeStartMessage(int, boolean)}
+ * _EXECUTING -> call {@link #sendStopMessageLocked}}, but only if there are no callbacks
+ * in the message queue.
+ * _ENDING -> No point in doing anything here, so we ignore.
+ */
+ private void handleCancelLocked() {
+ if (JobSchedulerService.DEBUG) {
+ Slog.d(TAG, "Handling cancel for: " + mRunningJob.getJobId() + " "
+ + VERB_STRINGS[mVerb]);
}
+ switch (mVerb) {
+ case VERB_BINDING:
+ case VERB_STARTING:
+ mCancelled = true;
+ break;
+ case VERB_EXECUTING:
+ sendStopMessageLocked();
+ break;
+ case VERB_STOPPING:
+ // Nada.
+ break;
+ default:
+ Slog.e(TAG, "Cancelling a job without a valid verb: " + mVerb);
+ break;
+ }
+ }
- /** Process MSG_TIMEOUT here. */
- private void handleOpTimeoutH() {
- switch (mVerb) {
- case VERB_BINDING:
- Slog.e(TAG, "Time-out while trying to bind " + mRunningJob.toShortString() +
- ", dropping.");
- closeAndCleanupJobH(false /* needsReschedule */);
- break;
- case VERB_STARTING:
- // Client unresponsive - wedged or failed to respond in time. We don't really
- // know what happened so let's log it and notify the JobScheduler
- // FINISHED/NO-RETRY.
- Slog.e(TAG, "No response from client for onStartJob '" +
- mRunningJob.toShortString());
- closeAndCleanupJobH(false /* needsReschedule */);
- break;
- case VERB_STOPPING:
- // At least we got somewhere, so fail but ask the JobScheduler to reschedule.
- Slog.e(TAG, "No response from client for onStopJob, '" +
- mRunningJob.toShortString());
- closeAndCleanupJobH(true /* needsReschedule */);
- break;
- case VERB_EXECUTING:
- // Not an error - client ran out of time.
- Slog.i(TAG, "Client timed out while executing (no jobFinished received)." +
- " sending onStop. " + mRunningJob.toShortString());
- mParams.setStopReason(JobParameters.REASON_TIMEOUT);
- sendStopMessageH();
- break;
- default:
- Slog.e(TAG, "Handling timeout for an invalid job state: " +
- mRunningJob.toShortString() + ", dropping.");
- closeAndCleanupJobH(false /* needsReschedule */);
- }
+ /** Process MSG_TIMEOUT here. */
+ private void handleOpTimeoutLocked() {
+ switch (mVerb) {
+ case VERB_BINDING:
+ Slog.e(TAG, "Time-out while trying to bind " + mRunningJob.toShortString() +
+ ", dropping.");
+ closeAndCleanupJobLocked(false /* needsReschedule */);
+ break;
+ case VERB_STARTING:
+ // Client unresponsive - wedged or failed to respond in time. We don't really
+ // know what happened so let's log it and notify the JobScheduler
+ // FINISHED/NO-RETRY.
+ Slog.e(TAG, "No response from client for onStartJob '" +
+ mRunningJob.toShortString());
+ closeAndCleanupJobLocked(false /* needsReschedule */);
+ break;
+ case VERB_STOPPING:
+ // At least we got somewhere, so fail but ask the JobScheduler to reschedule.
+ Slog.e(TAG, "No response from client for onStopJob, '" +
+ mRunningJob.toShortString());
+ closeAndCleanupJobLocked(true /* needsReschedule */);
+ break;
+ case VERB_EXECUTING:
+ // Not an error - client ran out of time.
+ Slog.i(TAG, "Client timed out while executing (no jobFinished received)." +
+ " sending onStop. " + mRunningJob.toShortString());
+ mParams.setStopReason(JobParameters.REASON_TIMEOUT);
+ sendStopMessageLocked();
+ break;
+ default:
+ Slog.e(TAG, "Handling timeout for an invalid job state: " +
+ mRunningJob.toShortString() + ", dropping.");
+ closeAndCleanupJobLocked(false /* needsReschedule */);
}
+ }
- /**
- * Already running, need to stop. Will switch {@link #mVerb} from VERB_EXECUTING ->
- * VERB_STOPPING.
- */
- private void sendStopMessageH() {
- removeOpTimeOutLocked();
- if (mVerb != VERB_EXECUTING) {
- Slog.e(TAG, "Sending onStopJob for a job that isn't started. " + mRunningJob);
- closeAndCleanupJobH(false /* reschedule */);
- return;
- }
- try {
- mVerb = VERB_STOPPING;
- scheduleOpTimeOutLocked();
- service.stopJob(mParams);
- } catch (RemoteException e) {
- Slog.e(TAG, "Error sending onStopJob to client.", e);
- // The job's host app apparently crashed during the job, so we should reschedule.
- closeAndCleanupJobH(true /* reschedule */);
- }
+ /**
+ * Already running, need to stop. Will switch {@link #mVerb} from VERB_EXECUTING ->
+ * VERB_STOPPING.
+ */
+ private void sendStopMessageLocked() {
+ removeOpTimeOutLocked();
+ if (mVerb != VERB_EXECUTING) {
+ Slog.e(TAG, "Sending onStopJob for a job that isn't started. " + mRunningJob);
+ closeAndCleanupJobLocked(false /* reschedule */);
+ return;
+ }
+ try {
+ mVerb = VERB_STOPPING;
+ scheduleOpTimeOutLocked();
+ service.stopJob(mParams);
+ } catch (RemoteException e) {
+ Slog.e(TAG, "Error sending onStopJob to client.", e);
+ // The job's host app apparently crashed during the job, so we should reschedule.
+ closeAndCleanupJobLocked(true /* reschedule */);
}
+ }
- /**
- * The provided job has finished, either by calling
- * {@link android.app.job.JobService#jobFinished(android.app.job.JobParameters, boolean)}
- * or from acknowledging the stop message we sent. Either way, we're done tracking it and
- * we want to clean up internally.
- */
- private void closeAndCleanupJobH(boolean reschedule) {
- final JobStatus completedJob;
- synchronized (mLock) {
- if (mVerb == VERB_FINISHED) {
- return;
- }
- completedJob = mRunningJob;
- mJobPackageTracker.noteInactive(completedJob);
- try {
- mBatteryStats.noteJobFinish(mRunningJob.getBatteryName(),
- mRunningJob.getSourceUid());
- } catch (RemoteException e) {
- // Whatever.
- }
- if (mWakeLock != null) {
- mWakeLock.release();
- }
- mContext.unbindService(JobServiceContext.this);
- mWakeLock = null;
- mRunningJob = null;
- mParams = null;
- mVerb = VERB_FINISHED;
- mCancelled.set(false);
- service = null;
- mAvailable = true;
- removeOpTimeOutLocked();
- removeMessages(MSG_CALLBACK);
- removeMessages(MSG_SERVICE_BOUND);
- removeMessages(MSG_CANCEL);
- removeMessages(MSG_SHUTDOWN_EXECUTION);
- mCompletedListener.onJobCompletedLocked(completedJob, reschedule);
- }
+ /**
+ * The provided job has finished, either by calling
+ * {@link android.app.job.JobService#jobFinished(android.app.job.JobParameters, boolean)}
+ * or from acknowledging the stop message we sent. Either way, we're done tracking it and
+ * we want to clean up internally.
+ */
+ private void closeAndCleanupJobLocked(boolean reschedule) {
+ final JobStatus completedJob;
+ if (mVerb == VERB_FINISHED) {
+ return;
}
+ completedJob = mRunningJob;
+ mJobPackageTracker.noteInactive(completedJob);
+ try {
+ mBatteryStats.noteJobFinish(mRunningJob.getBatteryName(),
+ mRunningJob.getSourceUid());
+ } catch (RemoteException e) {
+ // Whatever.
+ }
+ if (mWakeLock != null) {
+ mWakeLock.release();
+ }
+ mContext.unbindService(JobServiceContext.this);
+ mWakeLock = null;
+ mRunningJob = null;
+ mParams = null;
+ mVerb = VERB_FINISHED;
+ mCancelled = false;
+ service = null;
+ mAvailable = true;
+ removeOpTimeOutLocked();
+ mCompletedListener.onJobCompletedLocked(completedJob, reschedule);
}
/**
import android.content.Intent;
import android.net.Uri;
import android.os.Binder;
-import android.os.IBinder;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.UserHandle;
import android.util.Slog;
import android.util.TimeUtils;
+import com.android.server.job.GrantedUriPermissions;
+
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
final String tag;
- private IBinder permissionOwner;
+ private GrantedUriPermissions uriPerms;
private boolean prepared;
/**
earliestRunTimeElapsedMillis, latestRunTimeElapsedMillis);
}
- public void enqueueWorkLocked(JobWorkItem work) {
+ public void enqueueWorkLocked(IActivityManager am, JobWorkItem work) {
if (pendingWork == null) {
pendingWork = new ArrayList<>();
}
work.setWorkId(nextPendingWorkId);
nextPendingWorkId++;
+ if (work.getIntent() != null
+ && GrantedUriPermissions.checkGrantFlags(work.getIntent().getFlags())) {
+ work.setGrants(GrantedUriPermissions.createFromIntent(am, work.getIntent(), sourceUid,
+ sourcePackageName, sourceUserId, toShortString()));
+ }
pendingWork.add(work);
}
return executingWork != null && executingWork.size() > 0;
}
- public boolean completeWorkLocked(int workId) {
+ private static void ungrantWorkItem(IActivityManager am, JobWorkItem work) {
+ if (work.getGrants() != null) {
+ ((GrantedUriPermissions)work.getGrants()).revoke(am);
+ }
+ }
+
+ public boolean completeWorkLocked(IActivityManager am, int workId) {
if (executingWork != null) {
final int N = executingWork.size();
for (int i = 0; i < N; i++) {
- if (executingWork.get(i).getWorkId() == workId) {
+ JobWorkItem work = executingWork.get(i);
+ if (work.getWorkId() == workId) {
executingWork.remove(i);
+ ungrantWorkItem(am, work);
return true;
}
}
return false;
}
- public void stopTrackingJobLocked(JobStatus incomingJob) {
+ private static void ungrantWorkList(IActivityManager am, ArrayList<JobWorkItem> list) {
+ if (list != null) {
+ final int N = list.size();
+ for (int i = 0; i < N; i++) {
+ ungrantWorkItem(am, list.get(i));
+ }
+ }
+ }
+
+ public void stopTrackingJobLocked(IActivityManager am, JobStatus incomingJob) {
if (incomingJob != null) {
- // We are replacing with a new job -- transfer the work!
- incomingJob.pendingWork = pendingWork;
+ // We are replacing with a new job -- transfer the work! We do any executing
+ // work first, since that was originally at the front of the pending work.
+ if (executingWork != null && executingWork.size() > 0) {
+ incomingJob.pendingWork = executingWork;
+ }
+ if (incomingJob.pendingWork == null) {
+ incomingJob.pendingWork = pendingWork;
+ } else if (pendingWork != null && pendingWork.size() > 0) {
+ incomingJob.pendingWork.addAll(pendingWork);
+ }
pendingWork = null;
+ executingWork = null;
incomingJob.nextPendingWorkId = nextPendingWorkId;
} else {
// We are completely stopping the job... need to clean up work.
- // XXX remove perms when that is impl.
+ ungrantWorkList(am, pendingWork);
+ pendingWork = null;
+ ungrantWorkList(am, executingWork);
+ executingWork = null;
}
}
prepared = true;
final ClipData clip = job.getClipData();
if (clip != null) {
- final int N = clip.getItemCount();
- for (int i = 0; i < N; i++) {
- grantItemLocked(am, clip.getItemAt(i), sourceUid, sourcePackageName, sourceUserId);
- }
+ uriPerms = GrantedUriPermissions.createFromClip(am, clip, sourceUid, sourcePackageName,
+ sourceUserId, job.getClipGrantFlags(), toShortString());
}
}
return;
}
prepared = false;
- if (permissionOwner != null) {
- final ClipData clip = job.getClipData();
- if (clip != null) {
- final int N = clip.getItemCount();
- for (int i = 0; i < N; i++) {
- revokeItemLocked(am, clip.getItemAt(i));
- }
- }
+ if (uriPerms != null) {
+ uriPerms.revoke(am);
+ uriPerms = null;
}
}
return prepared;
}
- private final void grantUriLocked(IActivityManager am, Uri uri, int sourceUid,
- String targetPackage, int targetUserId) {
- try {
- int sourceUserId = ContentProvider.getUserIdFromUri(uri,
- UserHandle.getUserId(sourceUid));
- uri = ContentProvider.getUriWithoutUserId(uri);
- if (permissionOwner == null) {
- permissionOwner = am.newUriPermissionOwner("job: " + toShortString());
- }
- am.grantUriPermissionFromOwner(permissionOwner, sourceUid, targetPackage,
- uri, job.getClipGrantFlags(), sourceUserId, targetUserId);
- } catch (RemoteException e) {
- Slog.e("JobScheduler", "AM dead");
- }
- }
-
- private final void grantItemLocked(IActivityManager am, ClipData.Item item, int sourceUid,
- String targetPackage, int targetUserId) {
- if (item.getUri() != null) {
- grantUriLocked(am, item.getUri(), sourceUid, targetPackage, targetUserId);
- }
- Intent intent = item.getIntent();
- if (intent != null && intent.getData() != null) {
- grantUriLocked(am, intent.getData(), sourceUid, targetPackage, targetUserId);
- }
- }
-
- private final void revokeUriLocked(IActivityManager am, Uri uri) {
- int userId = ContentProvider.getUserIdFromUri(uri,
- UserHandle.getUserId(Binder.getCallingUid()));
- long ident = Binder.clearCallingIdentity();
- try {
- uri = ContentProvider.getUriWithoutUserId(uri);
- am.revokeUriPermissionFromOwner(permissionOwner, uri,
- job.getClipGrantFlags(), userId);
- } catch (RemoteException e) {
- } finally {
- Binder.restoreCallingIdentity(ident);
- }
- }
-
- private final void revokeItemLocked(IActivityManager am, ClipData.Item item) {
- if (item.getUri() != null) {
- revokeUriLocked(am, item.getUri());
- }
- Intent intent = item.getIntent();
- if (intent != null && intent.getData() != null) {
- revokeUriLocked(am, intent.getData());
- }
- }
-
public JobInfo getJob() {
return job;
}
}
}
+ private void dumpJobWorkItem(PrintWriter pw, String prefix, JobWorkItem work, int index) {
+ pw.print(prefix); pw.print(" #"); pw.print(index); pw.print(": #");
+ pw.print(work.getWorkId()); pw.print(" "); pw.println(work.getIntent());
+ if (work.getGrants() != null) {
+ pw.print(prefix); pw.println(" URI grants:");
+ ((GrantedUriPermissions)work.getGrants()).dump(pw, prefix + " ");
+ }
+ }
+
// Dumpsys infrastructure
public void dump(PrintWriter pw, String prefix, boolean full) {
pw.print(prefix); UserHandle.formatUid(pw, callingUid);
job.getClipData().toShortString(b);
pw.println(b);
}
+ if (uriPerms != null) {
+ pw.print(prefix); pw.println(" Granted URI permissions:");
+ uriPerms.dump(pw, prefix + " ");
+ }
if (job.getNetworkType() != JobInfo.NETWORK_TYPE_NONE) {
pw.print(prefix); pw.print(" Network type: "); pw.println(job.getNetworkType());
}
if (pendingWork != null && pendingWork.size() > 0) {
pw.print(prefix); pw.println("Pending work:");
for (int i = 0; i < pendingWork.size(); i++) {
- JobWorkItem work = pendingWork.get(i);
- pw.print(prefix); pw.print(" #"); pw.print(i); pw.print(": #");
- pw.print(work.getWorkId()); pw.print(" "); pw.println(work.getIntent());
+ dumpJobWorkItem(pw, prefix, pendingWork.get(i), i);
}
}
if (executingWork != null && executingWork.size() > 0) {
pw.print(prefix); pw.println("Executing work:");
for (int i = 0; i < executingWork.size(); i++) {
- JobWorkItem work = executingWork.get(i);
- pw.print(prefix); pw.print(" #"); pw.print(i); pw.print(": #");
- pw.print(work.getWorkId()); pw.print(" "); pw.println(work.getIntent());
+ dumpJobWorkItem(pw, prefix, executingWork.get(i), i);
}
}
pw.print(prefix); pw.print("Earliest run time: ");
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