Merge "Add `ALLOWLISTED_WRITE_DEVICE_CONFIG` permission." into udc-dev (52bf2033) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ package android {
		field public static final String ADD_TRUSTED_DISPLAY = "android.permission.ADD_TRUSTED_DISPLAY";
		field public static final String ADJUST_RUNTIME_PERMISSIONS_POLICY = "android.permission.ADJUST_RUNTIME_PERMISSIONS_POLICY";
		field public static final String ALLOCATE_AGGRESSIVE = "android.permission.ALLOCATE_AGGRESSIVE";
		field public static final String ALLOWLISTED_WRITE_DEVICE_CONFIG = "android.permission.ALLOWLISTED_WRITE_DEVICE_CONFIG";
		field public static final String ALLOW_ANY_CODEC_FOR_PLAYBACK = "android.permission.ALLOW_ANY_CODEC_FOR_PLAYBACK";
		field public static final String ALLOW_PLACE_IN_MULTI_PANE_SETTINGS = "android.permission.ALLOW_PLACE_IN_MULTI_PANE_SETTINGS";
		field public static final String ALLOW_SLIPPERY_TOUCHES = "android.permission.ALLOW_SLIPPERY_TOUCHES";
		@@ -287,6 +288,7 @@ package android {
		field public static final String READ_SYSTEM_UPDATE_INFO = "android.permission.READ_SYSTEM_UPDATE_INFO";
		field public static final String READ_WALLPAPER_INTERNAL = "android.permission.READ_WALLPAPER_INTERNAL";
		field public static final String READ_WIFI_CREDENTIAL = "android.permission.READ_WIFI_CREDENTIAL";
		field public static final String READ_WRITE_SYNC_DISABLED_MODE_CONFIG = "android.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG";
		field public static final String REAL_GET_TASKS = "android.permission.REAL_GET_TASKS";
		field public static final String RECEIVE_BLUETOOTH_MAP = "android.permission.RECEIVE_BLUETOOTH_MAP";
		field public static final String RECEIVE_DATA_ACTIVITY_CHANGE = "android.permission.RECEIVE_DATA_ACTIVITY_CHANGE";

core/api/test-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -5,6 +5,7 @@ package android {
		field public static final String ACCESS_NOTIFICATIONS = "android.permission.ACCESS_NOTIFICATIONS";
		field public static final String ACTIVITY_EMBEDDING = "android.permission.ACTIVITY_EMBEDDING";
		field public static final String ADJUST_RUNTIME_PERMISSIONS_POLICY = "android.permission.ADJUST_RUNTIME_PERMISSIONS_POLICY";
		field public static final String ALLOWLISTED_WRITE_DEVICE_CONFIG = "android.permission.ALLOWLISTED_WRITE_DEVICE_CONFIG";
		field public static final String APPROVE_INCIDENT_REPORTS = "android.permission.APPROVE_INCIDENT_REPORTS";
		field public static final String BACKGROUND_CAMERA = "android.permission.BACKGROUND_CAMERA";
		field public static final String BIND_CELL_BROADCAST_SERVICE = "android.permission.BIND_CELL_BROADCAST_SERVICE";
		@@ -39,6 +40,7 @@ package android {
		field public static final String QUERY_AUDIO_STATE = "android.permission.QUERY_AUDIO_STATE";
		field public static final String READ_CELL_BROADCASTS = "android.permission.READ_CELL_BROADCASTS";
		field public static final String READ_PRIVILEGED_PHONE_STATE = "android.permission.READ_PRIVILEGED_PHONE_STATE";
		field public static final String READ_WRITE_SYNC_DISABLED_MODE_CONFIG = "android.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG";
		field public static final String RECORD_BACKGROUND_AUDIO = "android.permission.RECORD_BACKGROUND_AUDIO";
		field public static final String REMAP_MODIFIER_KEYS = "android.permission.REMAP_MODIFIER_KEYS";
		field public static final String REMOVE_TASKS = "android.permission.REMOVE_TASKS";

core/res/AndroidManifest.xml

+10 −0

Original line number	Diff line number	Diff line
		@@ -4203,6 +4203,16 @@
		<permission android:name="android.permission.WRITE_DEVICE_CONFIG"
		android:protectionLevel="signature\|verifier\|configurator"/>

		<!-- @SystemApi @TestApi @hide Allows an application to read/write sync disabled mode config.
		<p>Not for use by third-party applications. -->
		<permission android:name="android.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG"
		android:protectionLevel="signature\|verifier\|configurator"/>

		<!-- @SystemApi @TestApi @hide Allows an application to modify only allowlisted settings.
		<p>Not for use by third-party applications. -->
		<permission android:name="android.permission.ALLOWLISTED_WRITE_DEVICE_CONFIG"
		android:protectionLevel="signature\|verifier\|configurator"/>

		<!-- @SystemApi @hide Allows an application to read config settings.
		<p>Not for use by third-party applications. -->
		<permission android:name="android.permission.READ_DEVICE_CONFIG"

packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java

+62 −11

Original line number	Diff line number	Diff line
		@@ -1173,7 +1173,7 @@ public class SettingsProvider extends ContentProvider {
		Slog.v(LOG_TAG, "setAllConfigSettings for prefix: " + prefix);
		}

		enforceWritePermission(Manifest.permission.WRITE_DEVICE_CONFIG);
		enforceDeviceConfigWritePermission(getContext(), keyValues.keySet());
		final String callingPackage = resolveCallingPackage();

		synchronized (mLock) {
		@@ -1192,7 +1192,8 @@ public class SettingsProvider extends ContentProvider {
		Slog.v(LOG_TAG, "setSyncDisabledModeConfig(" + syncDisabledMode + ")");
		}

		enforceWritePermission(Manifest.permission.WRITE_DEVICE_CONFIG);
		enforceHasAtLeastOnePermission(Manifest.permission.WRITE_DEVICE_CONFIG,
		Manifest.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG);

		synchronized (mLock) {
		setSyncDisabledModeConfigLocked(syncDisabledMode);
		@@ -1204,7 +1205,8 @@ public class SettingsProvider extends ContentProvider {
		Slog.v(LOG_TAG, "getSyncDisabledModeConfig");
		}

		enforceWritePermission(Manifest.permission.WRITE_DEVICE_CONFIG);
		enforceHasAtLeastOnePermission(Manifest.permission.WRITE_DEVICE_CONFIG,
		Manifest.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG);

		synchronized (mLock) {
		return getSyncDisabledModeConfigLocked();
		@@ -1289,13 +1291,13 @@ public class SettingsProvider extends ContentProvider {

		private boolean mutateConfigSetting(String name, String value, String prefix,
		boolean makeDefault, int operation, int mode) {
		enforceWritePermission(Manifest.permission.WRITE_DEVICE_CONFIG);
		final String callingPackage = resolveCallingPackage();

		// Perform the mutation.
		synchronized (mLock) {
		switch (operation) {
		case MUTATION_OPERATION_INSERT: {
		enforceDeviceConfigWritePermission(getContext(), Collections.singleton(name));
		return mSettingsRegistry.insertSettingLocked(SETTINGS_TYPE_CONFIG,
		UserHandle.USER_SYSTEM, name, value, null, makeDefault, true,
		callingPackage, false, null,
		@@ -1303,11 +1305,14 @@ public class SettingsProvider extends ContentProvider {
		}

		case MUTATION_OPERATION_DELETE: {
		enforceDeviceConfigWritePermission(getContext(), Collections.singleton(name));
		return mSettingsRegistry.deleteSettingLocked(SETTINGS_TYPE_CONFIG,
		UserHandle.USER_SYSTEM, name, false, null);
		}

		case MUTATION_OPERATION_RESET: {
		enforceDeviceConfigWritePermission(getContext(),
		getAllConfigFlags(prefix).keySet());
		mSettingsRegistry.resetSettingsLocked(SETTINGS_TYPE_CONFIG,
		UserHandle.USER_SYSTEM, callingPackage, mode, null, prefix);
		} return true;
		@@ -1464,7 +1469,7 @@ public class SettingsProvider extends ContentProvider {
		boolean makeDefault, int requestingUserId, int operation, boolean forceNotify,
		int mode, boolean overrideableByRestore) {
		// Make sure the caller can change the settings - treated as secure.
		enforceWritePermission(Manifest.permission.WRITE_SECURE_SETTINGS);
		enforceHasAtLeastOnePermission(Manifest.permission.WRITE_SECURE_SETTINGS);

		// Resolve the userId on whose behalf the call is made.
		final int callingUserId = resolveCallingUserIdEnforcingPermissionsLocked(requestingUserId);
		@@ -1752,7 +1757,7 @@ public class SettingsProvider extends ContentProvider {
		boolean makeDefault, int requestingUserId, int operation, boolean forceNotify,
		int mode, boolean overrideableByRestore) {
		// Make sure the caller can change the settings.
		enforceWritePermission(Manifest.permission.WRITE_SECURE_SETTINGS);
		enforceHasAtLeastOnePermission(Manifest.permission.WRITE_SECURE_SETTINGS);

		// Resolve the userId on whose behalf the call is made.
		final int callingUserId = resolveCallingUserIdEnforcingPermissionsLocked(requestingUserId);
		@@ -2277,11 +2282,57 @@ public class SettingsProvider extends ContentProvider {
		}
		}

		private void enforceWritePermission(String permission) {
		private void enforceHasAtLeastOnePermission(String ...permissions) {
		for (String permission : permissions) {
		if (getContext().checkCallingOrSelfPermission(permission)
		!= PackageManager.PERMISSION_GRANTED) {
		throw new SecurityException("Permission denial: writing to settings requires:"
		+ permission);
		== PackageManager.PERMISSION_GRANTED) {
		return;
		}
		}
		throw new SecurityException("Permission denial, must have one of: "
		+ Arrays.toString(permissions));
		}

		/**
		* Throws an exception if write permissions are not granted for {@code flags}.
		* <p>
		* Write permissions are granted if the calling UID is root, or the
		* WRITE_DEVICE_CONFIG permission is granted, or the WRITE_DEVICE_CONFIG_ALLOWLIST
		* permission is granted and each flag in {@code flags} is allowlisted in {@code
		* WRITABLE_FLAG_ALLOWLIST_FLAG}.
		*
		* @param context the {@link Context} this is called in
		* @param flags a list of flags to check, each one of the form 'namespace/flagName'
		*
		* @throws SecurityException if the above criteria are not met.
		* @hide
		*/
		private void enforceDeviceConfigWritePermission(
		@NonNull Context context,
		@NonNull Set<String> flags) {
		boolean hasAllowlistPermission =
		context.checkCallingOrSelfPermission(
		Manifest.permission.ALLOWLISTED_WRITE_DEVICE_CONFIG)
		== PackageManager.PERMISSION_GRANTED;
		boolean hasWritePermission =
		context.checkCallingOrSelfPermission(
		Manifest.permission.WRITE_DEVICE_CONFIG)
		== PackageManager.PERMISSION_GRANTED;
		boolean isRoot = Binder.getCallingUid() == Process.ROOT_UID;

		if (isRoot \|\| hasWritePermission) {
		return;
		} else if (hasAllowlistPermission) {
		for (String flag : flags) {
		if (!DeviceConfig.getAdbWritableFlags().contains(flag)) {
		throw new SecurityException("Permission denial for flag '"
		+ flag
		+ "'; allowlist permission granted, but must add flag to the allowlist.");
		}
		}
		} else {
		throw new SecurityException("Permission denial to mutate flag, must have root, "
		+ "WRITE_DEVICE_CONFIG, or ALLOWLISTED_WRITE_DEVICE_CONFIG");
		}
		}

packages/Shell/AndroidManifest.xml

+2 −0

Original line number	Diff line number	Diff line
		@@ -148,6 +148,8 @@
		<uses-permission android:name="android.permission.LOCATION_BYPASS" />
		<uses-permission android:name="android.permission.READ_DEVICE_CONFIG" />
		<uses-permission android:name="android.permission.WRITE_DEVICE_CONFIG" />
		<uses-permission android:name="android.permission.ALLOWLISTED_WRITE_DEVICE_CONFIG" />
		<uses-permission android:name="android.permission.READ_WRITE_SYNC_DISABLED_MODE_CONFIG" />
		<uses-permission android:name="android.permission.MONITOR_DEVICE_CONFIG_ACCESS" />
		<uses-permission android:name="android.permission.BROADCAST_STICKY" />
		<uses-permission android:name="android.permission.MANAGE_ACCESSIBILITY" />