Ask location provider for its package name (00af9a32) · Commits · e / os / android_frameworks_base

location/java/com/android/internal/location/ILocationProviderManager.aidl

+1 −8

Original line number	Diff line number	Diff line
		@@ -25,15 +25,8 @@ import com.android.internal.location.ProviderProperties;
		* @hide
		*/
		interface ILocationProviderManager {

		void onSetAttributionTag(String attributionTag);

		@UnsupportedAppUsage
		void onSetIdentity(@nullable String packageName, @nullable String attributionTag);
		void onSetAllowed(boolean allowed);

		@UnsupportedAppUsage
		void onSetProperties(in ProviderProperties properties);

		@UnsupportedAppUsage
		void onReportLocation(in Location location);
		}

location/lib/java/com/android/location/provider/LocationProviderBase.java

+6 −5

Original line number	Diff line number	Diff line
		@@ -79,7 +79,8 @@ public abstract class LocationProviderBase {
		public static final String FUSED_PROVIDER = LocationManager.FUSED_PROVIDER;

		final String mTag;
		final String mAttributionTag;
		@Nullable final String mPackageName;
		@Nullable final String mAttributionTag;
		final IBinder mBinder;

		/**
		@@ -93,8 +94,7 @@ public abstract class LocationProviderBase {
		protected final ILocationManager mLocationManager;

		// write locked on mBinder, read lock is optional depending on atomicity requirements
		@Nullable
		volatile ILocationProviderManager mManager;
		@Nullable volatile ILocationProviderManager mManager;
		volatile ProviderProperties mProperties;
		volatile boolean mAllowed;

		@@ -116,6 +116,7 @@ public abstract class LocationProviderBase {
		public LocationProviderBase(Context context, String tag,
		ProviderPropertiesUnbundled properties) {
		mTag = tag;
		mPackageName = context != null ? context.getPackageName() : null;
		mAttributionTag = context != null ? context.getAttributionTag() : null;
		mBinder = new Service();

		@@ -332,8 +333,8 @@ public abstract class LocationProviderBase {
		public void setLocationProviderManager(ILocationProviderManager manager) {
		synchronized (mBinder) {
		try {
		if (mAttributionTag != null) {
		manager.onSetAttributionTag(mAttributionTag);
		if (mPackageName != null \|\| mAttributionTag != null) {
		manager.onSetIdentity(mPackageName, mAttributionTag);
		}
		manager.onSetProperties(mProperties);
		manager.onSetAllowed(mAllowed);

packages/FusedLocation/test/src/com/android/location/fused/tests/FusedLocationServiceTest.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -199,7 +199,7 @@ public class FusedLocationServiceTest {
		}

		@Override
		public void onSetAttributionTag(String attributionTag) {
		public void onSetIdentity(String packageName, String attributionTag) {

		}

services/core/java/com/android/server/ServiceWatcher.java

+15 −12

Original line number	Diff line number	Diff line
		@@ -56,8 +56,7 @@ import java.util.Objects;

		/**
		* Maintains a binding to the best service that matches the given intent information. Bind and
		* unbind callbacks, as well as all binder operations, will all be run on a single thread, but the
		* exact thread is left undefined.
		* unbind callbacks, as well as all binder operations, will all be run on a single thread.
		*/
		public class ServiceWatcher implements ServiceConnection {

		@@ -73,7 +72,11 @@ public class ServiceWatcher implements ServiceConnection {
		public interface BinderRunner {
		/** Called to run client code with the binder. */
		void run(IBinder binder) throws RemoteException;
		/** Called if an error occurred and the function could not be run. */
		/**
		* Called if an error occurred and the function could not be run. This callback is only
		* intended for resource deallocation and cleanup in response to a single binder operation,
		* it should not be used to propagate errors further.
		*/
		default void onError() {}
		}

		@@ -189,8 +192,15 @@ public class ServiceWatcher implements ServiceConnection {
		public ServiceWatcher(Context context, String action,
		@Nullable BinderRunner onBind, @Nullable Runnable onUnbind,
		@BoolRes int enableOverlayResId, @StringRes int nonOverlayPackageResId) {
		this(context, FgThread.getHandler(), action, onBind, onUnbind, enableOverlayResId,
		nonOverlayPackageResId);
		}

		public ServiceWatcher(Context context, Handler handler, String action,
		@Nullable BinderRunner onBind, @Nullable Runnable onUnbind,
		@BoolRes int enableOverlayResId, @StringRes int nonOverlayPackageResId) {
		mContext = context;
		mHandler = FgThread.getHandler();
		mHandler = handler;
		mIntent = new Intent(Objects.requireNonNull(action));

		Resources resources = context.getResources();
		@@ -278,13 +288,6 @@ public class ServiceWatcher implements ServiceConnection {
		return true;
		}

		/**
		* Returns information on the currently selected service.
		*/
		public ServiceInfo getBoundService() {
		return mServiceInfo;
		}

		private void onBestServiceChanged(boolean forceRebind) {
		Preconditions.checkState(Looper.myLooper() == mHandler.getLooper());

		@@ -380,7 +383,7 @@ public class ServiceWatcher implements ServiceConnection {
		}

		@Override
		public void onBindingDied(ComponentName component) {
		public final void onBindingDied(ComponentName component) {
		Preconditions.checkState(Looper.myLooper() == mHandler.getLooper());

		if (D) {

services/core/java/com/android/server/location/LocationProviderProxy.java

+22 −13

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import android.annotation.Nullable;
		import android.content.Context;
		import android.location.Location;
		import android.location.util.identity.CallerIdentity;
		import android.os.Binder;
		import android.os.Bundle;
		import android.os.IBinder;
		import android.os.RemoteException;
		@@ -128,27 +129,38 @@ public class LocationProviderProxy extends AbstractLocationProvider {
		mServiceWatcher.dump(fd, pw, args);
		}

		private static String guessPackageName(Context context, int uid) {
		String[] packageNames = context.getPackageManager().getPackagesForUid(uid);
		if (packageNames == null \|\| packageNames.length == 0) {
		// illegal state exception will propagate back through binders
		throw new IllegalStateException(
		"location provider from uid " + uid + " has no package information");
		} else {
		return packageNames[0];
		}
		}

		private class Proxy extends ILocationProviderManager.Stub {

		Proxy() {}

		// executed on binder thread
		@Override
		public void onSetAttributionTag(String attributionTag) {
		public void onSetIdentity(@Nullable String packageName, @Nullable String attributionTag) {
		synchronized (mLock) {
		if (mProxy != this) {
		return;
		}

		String packageName = mServiceWatcher.getBoundService().getPackageName();
		CallerIdentity identity;
		if (packageName == null) {
		return;
		packageName = guessPackageName(mContext, Binder.getCallingUid());
		// unsafe is ok since the package is coming direct from the package manager here
		identity = CallerIdentity.fromBinderUnsafe(packageName, attributionTag);
		} else {
		identity = CallerIdentity.fromBinder(mContext, packageName, attributionTag);
		}

		// we don't need to verify the package name because we're getting it straight from
		// the service watcher
		CallerIdentity identity = CallerIdentity.fromBinderUnsafe(packageName,
		attributionTag);
		setIdentity(identity);
		}
		}
		@@ -163,13 +175,10 @@ public class LocationProviderProxy extends AbstractLocationProvider {

		// if no identity is set yet, set it now
		if (getIdentity() == null) {
		String packageName = mServiceWatcher.getBoundService().getPackageName();
		if (packageName != null) {
		// we don't need to verify the package name because we're getting it
		// straight from the service watcher
		String packageName = guessPackageName(mContext, Binder.getCallingUid());
		// unsafe is ok since the package is coming direct from the package manager here
		setIdentity(CallerIdentity.fromBinderUnsafe(packageName, null));
		}
		}

		setProperties(properties);
		}