Merge "Fix bugs in LocationManagerService and AppOpsPolicy" into sc-dev am: a244ceeb2e (dcbca396) · Commits · e / os / android_frameworks_base

core/java/android/os/PackageTagsList.java

+144 −12

Original line number	Diff line number	Diff line
		@@ -23,20 +23,26 @@ import android.annotation.TestApi;
		import android.util.ArrayMap;
		import android.util.ArraySet;

		import com.android.internal.annotations.Immutable;

		import java.io.PrintWriter;
		import java.util.Collection;
		import java.util.Map;
		import java.util.Objects;
		import java.util.Set;

		/**
		* A list of packages and associated attribution tags that supports easy membership checks.
		* A list of packages and associated attribution tags that supports easy membership checks. Supports
		* "wildcard" attribution tags (ie, matching any attribution tag under a package) in additional to
		* standard checks.
		*
		* @hide
		*/
		@TestApi
		@Immutable
		public final class PackageTagsList implements Parcelable {

		// an empty set value matches any attribution tag
		// an empty set value matches any attribution tag (ie, wildcard)
		private final ArrayMap<String, ArraySet<String>> mPackageTags;

		private PackageTagsList(@NonNull ArrayMap<String, ArraySet<String>> packageTags) {
		@@ -51,14 +57,33 @@ public final class PackageTagsList implements Parcelable {
		}

		/**
		* Returns true if the given package is represented within this instance. If this returns true
		* this does not imply anything about whether any given attribution tag under the given package
		* name is present.
		* Returns true if the given package is found within this instance. If this returns true this
		* does not imply anything about whether any given attribution tag under the given package name
		* is present.
		*/
		public boolean includes(@NonNull String packageName) {
		return mPackageTags.containsKey(packageName);
		}

		/**
		* Returns true if the given attribution tag is found within this instance under any package.
		* Only returns true if the attribution tag literal is found, not if any package contains the
		* set of all attribution tags.
		*
		* @hide
		*/
		public boolean includesTag(@NonNull String attributionTag) {
		final int size = mPackageTags.size();
		for (int i = 0; i < size; i++) {
		ArraySet<String> tags = mPackageTags.valueAt(i);
		if (tags.contains(attributionTag)) {
		return true;
		}
		}

		return false;
		}

		/**
		* Returns true if all attribution tags under the given package are contained within this
		* instance.
		@@ -76,6 +101,7 @@ public final class PackageTagsList implements Parcelable {
		if (tags == null) {
		return false;
		} else if (tags.isEmpty()) {
		// our tags are the full set, so we contain any attribution tag
		return true;
		} else {
		return tags.contains(attributionTag);
		@@ -98,10 +124,12 @@ public final class PackageTagsList implements Parcelable {
		return false;
		}
		if (tags.isEmpty()) {
		// our tags are the full set, so we contain whatever the other tags are
		continue;
		}
		ArraySet<String> otherTags = packageTagsList.mPackageTags.valueAt(i);
		if (otherTags.isEmpty()) {
		// other tags are the full set, so we can't contain them
		return false;
		}
		if (!tags.containsAll(otherTags)) {
		@@ -247,6 +275,31 @@ public final class PackageTagsList implements Parcelable {
		return this;
		}

		/**
		* Adds the specified package and set of attribution tags to the builder.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder add(@NonNull String packageName,
		@NonNull Collection<String> attributionTags) {
		if (attributionTags.isEmpty()) {
		// the input is not allowed to specify a full set by passing in an empty collection
		return this;
		}

		ArraySet<String> tags = mPackageTags.get(packageName);
		if (tags == null) {
		tags = new ArraySet<>(attributionTags);
		mPackageTags.put(packageName, tags);
		} else if (!tags.isEmpty()) {
		// if we contain the full set, already done, otherwise add all the tags
		tags.addAll(attributionTags);
		}

		return this;
		}

		/**
		* Adds the specified {@link PackageTagsList} to the builder.
		*/
		@@ -267,13 +320,92 @@ public final class PackageTagsList implements Parcelable {
		if (newTags.isEmpty()) {
		add(entry.getKey());
		} else {
		ArraySet<String> tags = mPackageTags.get(entry.getKey());
		if (tags == null) {
		tags = new ArraySet<>(newTags);
		mPackageTags.put(entry.getKey(), tags);
		} else if (!tags.isEmpty()) {
		tags.addAll(newTags);
		add(entry.getKey(), newTags);
		}
		}

		return this;
		}

		/**
		* Removes all attribution tags under the specified package from the builder.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder remove(@NonNull String packageName) {
		mPackageTags.remove(packageName);
		return this;
		}

		/**
		* Removes the specified package and attribution tag from the builder if and only if the
		* specified attribution tag is listed explicitly under the package. If the package contains
		* all possible attribution tags, then nothing will be removed.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder remove(@NonNull String packageName,
		@Nullable String attributionTag) {
		ArraySet<String> tags = mPackageTags.get(packageName);
		if (tags != null && tags.remove(attributionTag) && tags.isEmpty()) {
		mPackageTags.remove(packageName);
		}
		return this;
		}

		/**
		* Removes the specified package and set of attribution tags from the builder if and only if
		* the specified set of attribution tags are listed explicitly under the package. If the
		* package contains all possible attribution tags, then nothing will be removed.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder remove(@NonNull String packageName,
		@NonNull Collection<String> attributionTags) {
		if (attributionTags.isEmpty()) {
		// the input is not allowed to specify a full set by passing in an empty collection
		return this;
		}

		ArraySet<String> tags = mPackageTags.get(packageName);
		if (tags != null && tags.removeAll(attributionTags) && tags.isEmpty()) {
		mPackageTags.remove(packageName);
		}
		return this;
		}

		/**
		* Removes the specified {@link PackageTagsList} from the builder. If a package contains all
		* possible attribution tags, it will only be removed if the package in the removed
		* {@link PackageTagsList} also contains all possible attribution tags.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder remove(@NonNull PackageTagsList packageTagsList) {
		return remove(packageTagsList.mPackageTags);
		}

		/**
		* Removes the given map of package to attribution tags to the builder. An empty set of
		* attribution tags is interpreted to imply all attribution tags under that package. If a
		* package contains all possible attribution tags, it will only be removed if the package in
		* the removed map also contains all possible attribution tags.
		*
		* @hide
		*/
		@SuppressLint("MissingGetterMatchingBuilder")
		public @NonNull Builder remove(@NonNull Map<String, ? extends Set<String>> packageTagsMap) {
		for (Map.Entry<String, ? extends Set<String>> entry : packageTagsMap.entrySet()) {
		Set<String> removedTags = entry.getValue();
		if (removedTags.isEmpty()) {
		// if removing the full set, drop the package completely
		remove(entry.getKey());
		} else {
		remove(entry.getKey(), removedTags);
		}
		}

core/tests/coretests/src/android/os/PackageTagsListTest.java

+51 −1

Original line number	Diff line number	Diff line
		@@ -30,6 +30,7 @@ import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.util.Arrays;
		import java.util.Collections;

		@Presubmit
		@RunWith(AndroidJUnit4.class)
		@@ -40,7 +41,8 @@ public class PackageTagsListTest {
		PackageTagsList.Builder builder = new PackageTagsList.Builder()
		.add("package1", "attr1")
		.add("package1", "attr2")
		.add("package2");
		.add("package2")
		.add("package4", Arrays.asList("attr1", "attr2"));
		PackageTagsList list = builder.build();

		assertTrue(list.contains(builder.build()));
		@@ -49,10 +51,13 @@ public class PackageTagsListTest {
		assertTrue(list.contains("package2", "attr1"));
		assertTrue(list.contains("package2", "attr2"));
		assertTrue(list.contains("package2", "attr3"));
		assertTrue(list.contains("package4", "attr1"));
		assertTrue(list.contains("package4", "attr2"));
		assertTrue(list.containsAll("package2"));
		assertTrue(list.includes("package1"));
		assertTrue(list.includes("package2"));
		assertFalse(list.contains("package1", "attr3"));
		assertFalse(list.contains("package4", "attr3"));
		assertFalse(list.containsAll("package1"));
		assertFalse(list.includes("package3"));

		@@ -91,6 +96,51 @@ public class PackageTagsListTest {
		assertFalse(list.contains(bigList));
		}

		@Test
		public void testPackageTagsList_Remove() {
		PackageTagsList.Builder builder = new PackageTagsList.Builder()
		.add("package1", "attr1")
		.add("package1", "attr2")
		.add("package2")
		.add("package4", Arrays.asList("attr1", "attr2", "attr3"))
		.add("package3", "attr1")
		.remove("package1", "attr1")
		.remove("package1", "attr2")
		.remove("package2", "attr1")
		.remove("package4", Arrays.asList("attr1", "attr2"))
		.remove("package3");
		PackageTagsList list = builder.build();

		assertTrue(list.contains(builder.build()));
		assertFalse(list.contains("package1", "attr1"));
		assertFalse(list.contains("package1", "attr2"));
		assertTrue(list.contains("package2", "attr1"));
		assertTrue(list.contains("package2", "attr2"));
		assertTrue(list.contains("package2", "attr3"));
		assertFalse(list.contains("package3", "attr1"));
		assertFalse(list.contains("package4", "attr1"));
		assertFalse(list.contains("package4", "attr2"));
		assertTrue(list.contains("package4", "attr3"));
		assertTrue(list.containsAll("package2"));
		assertFalse(list.includes("package1"));
		assertTrue(list.includes("package2"));
		assertFalse(list.includes("package3"));
		assertTrue(list.includes("package4"));
		}

		@Test
		public void testPackageTagsList_EmptyCollections() {
		PackageTagsList.Builder builder = new PackageTagsList.Builder()
		.add("package1", Collections.emptyList())
		.add("package2")
		.remove("package2", Collections.emptyList());
		PackageTagsList list = builder.build();

		assertTrue(list.contains(builder.build()));
		assertFalse(list.contains("package1", "attr1"));
		assertTrue(list.contains("package2", "attr2"));
		}

		@Test
		public void testWriteToParcel() {
		PackageTagsList list = new PackageTagsList.Builder()

location/java/android/location/LocationManagerInternal.java

+8 −65

Original line number	Diff line number	Diff line
		@@ -16,14 +16,10 @@

		package android.location;


		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.location.util.identity.CallerIdentity;

		import com.android.internal.annotations.Immutable;

		import java.util.Set;
		import android.os.PackageTagsList;

		/**
		* Location manager local system service interface.
		@@ -43,18 +39,14 @@ public abstract class LocationManagerInternal {
		}

		/**
		* Interface for getting callbacks when a location provider's location tags change.
		*
		* @see LocationTagInfo
		* Interface for getting callbacks when an app id's location provider package tags change.
		*/
		public interface OnProviderLocationTagsChangeListener {
		public interface LocationPackageTagsListener {

		/**
		* Called when the location tags for a provider change.
		*
		* @param providerLocationTagInfo The tag info for a provider.
		* Called when the package tags for a location provider change for a uid.
		*/
		void onLocationTagsChanged(@NonNull LocationTagInfo providerLocationTagInfo);
		void onLocationPackageTagsChanged(int uid, @NonNull PackageTagsList packageTagsList);
		}

		/**
		@@ -109,58 +101,9 @@ public abstract class LocationManagerInternal {
		public abstract @Nullable LocationTime getGnssTimeMillis();

		/**
		* Sets a listener for changes in the location providers' tags. Passing
		* Sets a listener for changes in an app id's location provider package tags. Passing
		* {@code null} clears the current listener.
		*
		* @param listener The listener.
		*/
		public abstract void setOnProviderLocationTagsChangeListener(
		@Nullable OnProviderLocationTagsChangeListener listener);

		/**
		* This class represents the location permission tags used by the location provider
		* packages in a given UID. These tags are strictly used for accessing state guarded
		* by the location permission(s) by a location provider which are required for the
		* provider to fulfill its function as being a location provider.
		*/
		@Immutable
		public static class LocationTagInfo {
		private final int mUid;

		@NonNull
		private final String mPackageName;

		@Nullable
		private final Set<String> mLocationTags;

		public LocationTagInfo(int uid, @NonNull String packageName,
		@Nullable Set<String> locationTags) {
		mUid = uid;
		mPackageName = packageName;
		mLocationTags = locationTags;
		}

		/**
		* @return The UID for which tags are related.
		*/
		public int getUid() {
		return mUid;
		}

		/**
		* @return The package for which tags are related.
		*/
		@NonNull
		public String getPackageName() {
		return mPackageName;
		}

		/**
		* @return The tags for the package used for location related accesses.
		*/
		@Nullable
		public Set<String> getTags() {
		return mLocationTags;
		}
		}
		public abstract void setLocationPackageTagsListener(
		@Nullable LocationPackageTagsListener listener);
		}

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

+72 −31

Original line number	Diff line number	Diff line
		@@ -65,7 +65,7 @@ import android.location.LastLocationRequest;
		import android.location.Location;
		import android.location.LocationManager;
		import android.location.LocationManagerInternal;
		import android.location.LocationManagerInternal.OnProviderLocationTagsChangeListener;
		import android.location.LocationManagerInternal.LocationPackageTagsListener;
		import android.location.LocationProvider;
		import android.location.LocationRequest;
		import android.location.LocationTime;
		@@ -93,6 +93,7 @@ import android.util.Log;
		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.util.DumpUtils;
		import com.android.internal.util.Preconditions;
		import com.android.server.FgThread;
		import com.android.server.LocalServices;
		import com.android.server.SystemService;
		import com.android.server.location.eventlog.LocationEventLog;
		@@ -259,7 +260,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
		new CopyOnWriteArrayList<>();

		@GuardedBy("mLock")
		@Nullable OnProviderLocationTagsChangeListener mOnProviderLocationTagsChangeListener;
		@Nullable LocationPackageTagsListener mLocationTagsChangedListener;

		LocationManagerService(Context context, Injector injector) {
		mContext = context.createAttributionContext(ATTRIBUTION_TAG);
		@@ -1363,32 +1364,28 @@ public class LocationManagerService extends ILocationManager.Stub implements
		refreshAppOpsRestrictions(UserHandle.USER_ALL);
		}

		OnProviderLocationTagsChangeListener listener;
		synchronized (mLock) {
		listener = mOnProviderLocationTagsChangeListener;
		}

		if (listener != null) {
		if (!oldState.extraAttributionTags.equals(newState.extraAttributionTags)
		\|\| !Objects.equals(oldState.identity, newState.identity)) {
		if (oldState.identity != null) {
		listener.onLocationTagsChanged(
		new LocationManagerInternal.LocationTagInfo(
		oldState.identity.getUid(),
		oldState.identity.getPackageName(),
		Collections.emptySet()));
		// since we're potentially affecting the tag lists for two different uids, acquire the
		// lock to ensure providers cannot change while we're looping over the providers
		// multiple times, which could lead to inconsistent results.
		synchronized (mLock) {
		LocationPackageTagsListener listener = mLocationTagsChangedListener;
		if (listener != null) {
		int oldUid = oldState.identity != null ? oldState.identity.getUid() : -1;
		int newUid = newState.identity != null ? newState.identity.getUid() : -1;
		if (oldUid != -1) {
		PackageTagsList tags = calculateAppOpsLocationSourceTags(oldUid);
		FgThread.getHandler().post(
		() -> listener.onLocationPackageTagsChanged(oldUid, tags));
		}
		// if the new app id is the same as the old app id, no need to invoke the
		// listener twice, it's already been taken care of
		if (newUid != -1 && newUid != oldUid) {
		PackageTagsList tags = calculateAppOpsLocationSourceTags(newUid);
		FgThread.getHandler().post(
		() -> listener.onLocationPackageTagsChanged(newUid, tags));
		}
		if (newState.identity != null) {
		ArraySet<String> attributionTags = new ArraySet<>(
		newState.extraAttributionTags.size() + 1);
		attributionTags.addAll(newState.extraAttributionTags);
		attributionTags.add(newState.identity.getAttributionTag());

		listener.onLocationTagsChanged(
		new LocationManagerInternal.LocationTagInfo(
		newState.identity.getUid(),
		newState.identity.getPackageName(),
		attributionTags));
		}
		}
		}
		@@ -1436,6 +1433,31 @@ public class LocationManagerService extends ILocationManager.Stub implements
		userId);
		}

		PackageTagsList calculateAppOpsLocationSourceTags(int uid) {
		PackageTagsList.Builder builder = new PackageTagsList.Builder();
		for (LocationProviderManager manager : mProviderManagers) {
		AbstractLocationProvider.State managerState = manager.getState();
		if (managerState.identity == null) {
		continue;
		}
		if (managerState.identity.getUid() != uid) {
		continue;
		}

		builder.add(managerState.identity.getPackageName(), managerState.extraAttributionTags);
		if (managerState.extraAttributionTags.isEmpty()
		\|\| managerState.identity.getAttributionTag() != null) {
		builder.add(managerState.identity.getPackageName(),
		managerState.identity.getAttributionTag());
		} else {
		Log.e(TAG, manager.getName() + " provider has specified a null attribution tag and "
		+ "a non-empty set of extra attribution tags - dropping the null "
		+ "attribution tag");
		}
		}
		return builder.build();
		}

		private class LocalService extends LocationManagerInternal {

		LocalService() {}
		@@ -1506,10 +1528,29 @@ public class LocationManagerService extends ILocationManager.Stub implements
		}

		@Override
		public void setOnProviderLocationTagsChangeListener(
		@Nullable OnProviderLocationTagsChangeListener listener) {
		public void setLocationPackageTagsListener(
		@Nullable LocationPackageTagsListener listener) {
		synchronized (mLock) {
		mOnProviderLocationTagsChangeListener = listener;
		mLocationTagsChangedListener = listener;

		// calculate initial tag list and send to listener
		if (listener != null) {
		ArraySet<Integer> uids = new ArraySet<>(mProviderManagers.size());
		for (LocationProviderManager manager : mProviderManagers) {
		CallerIdentity identity = manager.getIdentity();
		if (identity != null) {
		uids.add(identity.getUid());
		}
		}

		for (int uid : uids) {
		PackageTagsList tags = calculateAppOpsLocationSourceTags(uid);
		if (!tags.isEmpty()) {
		FgThread.getHandler().post(
		() -> listener.onLocationPackageTagsChanged(uid, tags));
		}
		}
		}
		}
		}
		}

services/core/java/com/android/server/location/provider/AbstractLocationProvider.java

+3 −17

Original line number	Diff line number	Diff line
		@@ -263,10 +263,10 @@ public abstract class AbstractLocationProvider {
		}

		/**
		* The current allowed state of this provider.
		* The current state of the provider.
		*/
		public final boolean isAllowed() {
		return mInternalState.get().state.allowed;
		public final State getState() {
		return mInternalState.get().state;
		}

		/**
		@@ -276,13 +276,6 @@ public abstract class AbstractLocationProvider {
		setState(state -> state.withAllowed(allowed));
		}

		/**
		* The current provider properties of this provider.
		*/
		public final @Nullable ProviderProperties getProperties() {
		return mInternalState.get().state.properties;
		}

		/**
		* Call this method to report a change in provider properties.
		*/
		@@ -290,13 +283,6 @@ public abstract class AbstractLocationProvider {
		setState(state -> state.withProperties(properties));
		}

		/**
		* The current identity of this provider.
		*/
		public final @Nullable CallerIdentity getIdentity() {
		return mInternalState.get().state.identity;
		}

		/**
		* Call this method to report a change in the provider's identity.
		*/