Merge changes I39e84219,I8d0e12cb (cae221ac) · Commits · e / os / android_frameworks_base

core/java/android/os/BugreportManager.java

+17 −8

Original line number	Diff line number	Diff line
		@@ -28,6 +28,8 @@ import android.content.Context;

		import com.android.internal.util.Preconditions;

		import libcore.io.IoUtils;

		import java.io.FileDescriptor;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		@@ -124,6 +126,8 @@ public final class BugreportManager {
		* <p>The bugreport artifacts will be copied over to the given file descriptors only if the
		* user consents to sharing with the calling app.
		*
		* <p>{@link BugreportManager} takes ownership of {@code bugreportFd} and {@code screenshotFd}.
		*
		* @param bugreportFd file to write the bugreport. This should be opened in write-only,
		* append mode.
		* @param screenshotFd file to write the screenshot, if necessary. This should be opened
		@@ -137,12 +141,13 @@ public final class BugreportManager {
		@NonNull BugreportParams params,
		@NonNull @CallbackExecutor Executor executor,
		@NonNull BugreportCallback callback) {
		try {
		Preconditions.checkNotNull(bugreportFd);
		Preconditions.checkNotNull(params);
		Preconditions.checkNotNull(executor);
		Preconditions.checkNotNull(callback);

		DumpstateListener dsListener = new DumpstateListener(executor, callback);
		try {
		// Note: mBinder can get callingUid from the binder transaction.
		mBinder.startBugreport(-1 /* callingUid */,
		mContext.getOpPackageName(),
		@@ -152,6 +157,12 @@ public final class BugreportManager {
		params.getMode(), dsListener);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		} finally {
		// We can close the file descriptors here because binder would have duped them.
		IoUtils.closeQuietly(bugreportFd);
		if (screenshotFd != null) {
		IoUtils.closeQuietly(screenshotFd);
		}
		}
		}

		@@ -171,7 +182,7 @@ public final class BugreportManager {
		private final Executor mExecutor;
		private final BugreportCallback mCallback;

		DumpstateListener(Executor executor, @Nullable BugreportCallback callback) {
		DumpstateListener(Executor executor, BugreportCallback callback) {
		mExecutor = executor;
		mCallback = callback;
		}
		@@ -209,8 +220,6 @@ public final class BugreportManager {
		});
		} finally {
		Binder.restoreCallingIdentity(identity);
		// The bugreport has finished. Let's shutdown the service to minimize its footprint.
		cancelBugreport();
		}
		}

services/core/java/com/android/server/os/BugreportManagerServiceImpl.java

+73 −5

Original line number	Diff line number	Diff line
		@@ -40,10 +40,6 @@ import com.android.server.SystemConfig;

		import java.io.FileDescriptor;

		// TODO(b/111441001):
		// Intercept onFinished() & implement death recipient here and shutdown
		// bugreportd service.

		/**
		* Implementation of the service that provides a privileged API to capture and consume bugreports.
		*
		@@ -166,9 +162,12 @@ class BugreportManagerServiceImpl extends IDumpstate.Stub {
		reportError(listener, IDumpstateListener.BUGREPORT_ERROR_RUNTIME_ERROR);
		return;
		}

		// Wrap the listener so we can intercept binder events directly.
		IDumpstateListener myListener = new DumpstateListener(listener, ds);
		try {
		ds.startBugreport(callingUid, callingPackage,
		bugreportFd, screenshotFd, bugreportMode, listener);
		bugreportFd, screenshotFd, bugreportMode, myListener);
		} catch (RemoteException e) {
		reportError(listener, IDumpstateListener.BUGREPORT_ERROR_RUNTIME_ERROR);
		}
		@@ -235,4 +234,73 @@ class BugreportManagerServiceImpl extends IDumpstate.Stub {
		Slog.w(TAG, message);
		throw new IllegalArgumentException(message);
		}


		private final class DumpstateListener extends IDumpstateListener.Stub
		implements DeathRecipient {
		private final IDumpstateListener mListener;
		private final IDumpstate mDs;
		private boolean mDone = false;

		DumpstateListener(IDumpstateListener listener, IDumpstate ds) {
		mListener = listener;
		mDs = ds;
		try {
		mDs.asBinder().linkToDeath(this, 0);
		} catch (RemoteException e) {
		Slog.e(TAG, "Unable to register Death Recipient for IDumpstate", e);
		}
		}

		@Override
		public void onProgress(int progress) throws RemoteException {
		mListener.onProgress(progress);
		}

		@Override
		public void onError(int errorCode) throws RemoteException {
		synchronized (mLock) {
		mDone = true;
		}
		mListener.onError(errorCode);
		}

		@Override
		public void onFinished() throws RemoteException {
		synchronized (mLock) {
		mDone = true;
		}
		mListener.onFinished();
		}

		@Override
		public void binderDied() {
		synchronized (mLock) {
		if (!mDone) {
		// If we have not gotten a "done" callback this must be a crash.
		Slog.e(TAG, "IDumpstate likely crashed. Notifying listener");
		try {
		mListener.onError(IDumpstateListener.BUGREPORT_ERROR_RUNTIME_ERROR);
		} catch (RemoteException ignored) {
		// If listener is not around, there isn't anything to do here.
		}
		}
		}
		mDs.asBinder().unlinkToDeath(this, 0);
		}

		// Old methods; unused in the API flow.
		@Override
		public void onProgressUpdated(int progress) throws RemoteException {
		}

		@Override
		public void onMaxProgressUpdated(int maxProgress) throws RemoteException {
		}

		@Override
		public void onSectionComplete(String title, int status, int size, int durationMs)
		throws RemoteException {
		}
		}
		}