Merge "Set most leniant mode if two perms affect one appop" into qt-dev (d84102bf) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/policy/PermissionPolicyService.java

+95 −21

Original line number	Diff line number	Diff line
		@@ -50,6 +50,7 @@ import android.permission.PermissionControllerManager;
		import android.provider.Telephony;
		import android.telecom.TelecomManager;
		import android.util.ArraySet;
		import android.util.LongSparseLongArray;
		import android.util.Pair;
		import android.util.Slog;
		import android.util.SparseBooleanArray;
		@@ -58,6 +59,7 @@ import android.util.SparseIntArray;
		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.app.IAppOpsCallback;
		import com.android.internal.app.IAppOpsService;
		import com.android.internal.util.IntPair;
		import com.android.internal.util.function.pooled.PooledLambda;
		import com.android.server.FgThread;
		import com.android.server.LocalServices;
		@@ -147,11 +149,9 @@ public final class PermissionPolicyService extends SystemService {
		PermissionInfo perm = dangerousPerms.get(i);

		if (perm.isHardRestricted() \|\| perm.backgroundPermission != null) {
		appOpsService.startWatchingMode(AppOpsManager.permissionToOpCode(perm.name),
		null, appOpsListener);
		appOpsService.startWatchingMode(getSwitchOp(perm.name), null, appOpsListener);
		} else if (perm.isSoftRestricted()) {
		appOpsService.startWatchingMode(AppOpsManager.permissionToOpCode(perm.name),
		null, appOpsListener);
		appOpsService.startWatchingMode(getSwitchOp(perm.name), null, appOpsListener);

		SoftRestrictedPermissionPolicy policy =
		SoftRestrictedPermissionPolicy.forPermission(null, null, null,
		@@ -167,6 +167,25 @@ public final class PermissionPolicyService extends SystemService {
		}
		}

		/**
		* Get op that controls the access related to the permission.
		*
		* <p>Usually the permission-op relationship is 1:1 but some permissions (e.g. fine location)
		* {@link AppOpsManager#sOpToSwitch share an op} to control the access.
		*
		* @param permission The permission
		*
		* @return The op that controls the access of the permission
		*/
		private static int getSwitchOp(@NonNull String permission) {
		int op = AppOpsManager.permissionToOpCode(permission);
		if (op == OP_NONE) {
		return OP_NONE;
		}

		return AppOpsManager.opToSwitch(op);
		}

		private void synchronizePackagePermissionsAndAppOpsAsyncForUser(@NonNull String packageName,
		@UserIdInt int changedUserId) {
		if (isStarted(changedUserId)) {
		@@ -430,40 +449,89 @@ public final class PermissionPolicyService extends SystemService {
		* <p>This processes ops previously added by {@link #addOpIfRestricted}
		*/
		private void syncPackages() {
		// Remember which ops were already set. This makes sure that we always set the most
		// permissive mode if two OpChanges are scheduled. This can e.g. happen if two
		// permissions change the same op. See {@link #getSwitchOp}.
		LongSparseLongArray alreadySetAppOps = new LongSparseLongArray();

		final int allowCount = mOpsToAllow.size();
		for (int i = 0; i < allowCount; i++) {
		final OpToChange op = mOpsToAllow.get(i);

		setUidModeAllowed(op.code, op.uid, op.packageName);
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}

		final int allowIfDefaultCount = mOpsToAllowIfDefault.size();
		for (int i = 0; i < allowIfDefaultCount; i++) {
		final OpToChange op = mOpsToAllowIfDefault.get(i);
		setUidModeAllowedIfDefault(op.code, op.uid, op.packageName);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}
		final int foregroundCount = mOpsToForegroundIfAllow.size();
		for (int i = 0; i < foregroundCount; i++) {

		boolean wasSet = setUidModeAllowedIfDefault(op.code, op.uid, op.packageName);
		if (wasSet) {
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}
		}

		final int foregroundIfAllowedCount = mOpsToForegroundIfAllow.size();
		for (int i = 0; i < foregroundIfAllowedCount; i++) {
		final OpToChange op = mOpsToForegroundIfAllow.get(i);
		setUidModeForegroundIfAllow(op.code, op.uid, op.packageName);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}

		boolean wasSet = setUidModeForegroundIfAllow(op.code, op.uid, op.packageName);
		if (wasSet) {
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}
		final int foregroundIfAllowCount = mOpsToForeground.size();
		for (int i = 0; i < foregroundIfAllowCount; i++) {
		}

		final int foregroundCount = mOpsToForeground.size();
		for (int i = 0; i < foregroundCount; i++) {
		final OpToChange op = mOpsToForeground.get(i);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}

		setUidModeForeground(op.code, op.uid, op.packageName);
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}

		final int ignoreCount = mOpsToIgnore.size();
		for (int i = 0; i < ignoreCount; i++) {
		final OpToChange op = mOpsToIgnore.get(i);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}

		setUidModeIgnored(op.code, op.uid, op.packageName);
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}

		final int ignoreIfDefaultCount = mOpsToIgnoreIfDefault.size();
		for (int i = 0; i < ignoreIfDefaultCount; i++) {
		final OpToChange op = mOpsToIgnoreIfDefault.get(i);
		setUidModeIgnoredIfDefault(op.code, op.uid, op.packageName);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}

		boolean wasSet = setUidModeIgnoredIfDefault(op.code, op.uid, op.packageName);
		if (wasSet) {
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}
		}

		final int defaultCount = mOpsToDefault.size();
		for (int i = 0; i < defaultCount; i++) {
		final OpToChange op = mOpsToDefault.get(i);
		if (alreadySetAppOps.indexOfKey(IntPair.of(op.uid, op.code)) >= 0) {
		continue;
		}

		setUidModeDefault(op.code, op.uid, op.packageName);
		alreadySetAppOps.put(IntPair.of(op.uid, op.code), 1);
		}
		}

		@@ -479,7 +547,7 @@ public final class PermissionPolicyService extends SystemService {
		private void addOpIfRestricted(@NonNull PermissionInfo permissionInfo,
		@NonNull PackageInfo pkg) {
		final String permission = permissionInfo.name;
		final int opCode = AppOpsManager.permissionToOpCode(permission);
		final int opCode = getSwitchOp(permission);
		final int uid = pkg.applicationInfo.uid;

		if (!permissionInfo.isRestricted()) {
		@@ -581,7 +649,7 @@ public final class PermissionPolicyService extends SystemService {
		}

		final String permission = permissionInfo.name;
		final int opCode = AppOpsManager.permissionToOpCode(permission);
		final int opCode = getSwitchOp(permission);
		final String pkgName = pkg.packageName;
		final int uid = pkg.applicationInfo.uid;

		@@ -641,7 +709,7 @@ public final class PermissionPolicyService extends SystemService {
		}

		for (String permission : pkg.requestedPermissions) {
		final int opCode = AppOpsManager.permissionToOpCode(permission);
		final int opCode = getSwitchOp(permission);
		if (opCode == OP_NONE) {
		continue;
		}
		@@ -658,24 +726,27 @@ public final class PermissionPolicyService extends SystemService {
		}
		}

		private void setUidModeAllowedIfDefault(int opCode, int uid, @NonNull String packageName) {
		setUidModeIfMode(opCode, uid, MODE_DEFAULT, MODE_ALLOWED, packageName);
		private boolean setUidModeAllowedIfDefault(int opCode, int uid,
		@NonNull String packageName) {
		return setUidModeIfMode(opCode, uid, MODE_DEFAULT, MODE_ALLOWED, packageName);
		}

		private void setUidModeAllowed(int opCode, int uid, @NonNull String packageName) {
		setUidMode(opCode, uid, MODE_ALLOWED, packageName);
		}

		private void setUidModeForegroundIfAllow(int opCode, int uid, @NonNull String packageName) {
		setUidModeIfMode(opCode, uid, MODE_ALLOWED, MODE_FOREGROUND, packageName);
		private boolean setUidModeForegroundIfAllow(int opCode, int uid,
		@NonNull String packageName) {
		return setUidModeIfMode(opCode, uid, MODE_ALLOWED, MODE_FOREGROUND, packageName);
		}

		private void setUidModeForeground(int opCode, int uid, @NonNull String packageName) {
		setUidMode(opCode, uid, MODE_FOREGROUND, packageName);
		}

		private void setUidModeIgnoredIfDefault(int opCode, int uid, @NonNull String packageName) {
		setUidModeIfMode(opCode, uid, MODE_DEFAULT, MODE_IGNORED, packageName);
		private boolean setUidModeIgnoredIfDefault(int opCode, int uid,
		@NonNull String packageName) {
		return setUidModeIfMode(opCode, uid, MODE_DEFAULT, MODE_IGNORED, packageName);
		}

		private void setUidModeIgnored(int opCode, int uid, @NonNull String packageName) {
		@@ -692,14 +763,17 @@ public final class PermissionPolicyService extends SystemService {
		}
		}

		private void setUidModeIfMode(int opCode, int uid, int requiredModeBefore, int newMode,
		private boolean setUidModeIfMode(int opCode, int uid, int requiredModeBefore, int newMode,
		@NonNull String packageName) {
		final int currentMode = mAppOpsManager.unsafeCheckOpRaw(AppOpsManager
		.opToPublicName(opCode), uid, packageName);

		if (currentMode == requiredModeBefore) {
		mAppOpsManager.setUidMode(opCode, uid, newMode);
		return true;
		}

		return false;
		}

		private void setUidModeDefault(int opCode, int uid, String packageName) {

services/core/java/com/android/server/policy/TEST_MAPPING

+3 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,9 @@
		"options": [
		{
		"include-filter": "android.permission.cts.SplitPermissionTest"
		},
		{
		"include-filter": "android.permission.cts.BackgroundPermissionsTest"
		}
		]
		}