Report permission flags for all protections based on SDK (d9bf0f78) · Commits · e / os / android_frameworks_base

core/java/android/app/ApplicationPackageManager.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -281,7 +281,8 @@ public class ApplicationPackageManager extends PackageManager {
		public PermissionInfo getPermissionInfo(String name, int flags)
		throws NameNotFoundException {
		try {
		PermissionInfo pi = mPM.getPermissionInfo(name, flags);
		PermissionInfo pi = mPM.getPermissionInfo(name,
		mContext.getOpPackageName(), flags);
		if (pi != null) {
		return pi;
		}

core/java/android/content/pm/IPackageManager.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -71,7 +71,7 @@ interface IPackageManager {
		String[] currentToCanonicalPackageNames(in String[] names);
		String[] canonicalToCurrentPackageNames(in String[] names);

		PermissionInfo getPermissionInfo(String name, int flags);
		PermissionInfo getPermissionInfo(String name, String packageName, int flags);

		ParceledListSlice queryPermissionsByGroup(String group, int flags);

services/core/java/com/android/server/am/BroadcastQueue.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -802,7 +802,7 @@ public final class BroadcastQueue {
		IPackageManager pm = AppGlobals.getPackageManager();
		for (int i = perms.length-1; i >= 0; i--) {
		try {
		PermissionInfo pi = pm.getPermissionInfo(perms[i], 0);
		PermissionInfo pi = pm.getPermissionInfo(perms[i], "android", 0);
		if ((pi.protectionLevel & (PermissionInfo.PROTECTION_MASK_BASE
		\| PermissionInfo.PROTECTION_FLAG_PRIVILEGED))
		!= PermissionInfo.PROTECTION_SIGNATURE) {

services/core/java/com/android/server/pm/PackageManagerService.java

+50 −6

Original line number	Diff line number	Diff line
		@@ -3996,18 +3996,62 @@ public class PackageManagerService extends IPackageManager.Stub
		}

		@Override
		public PermissionInfo getPermissionInfo(String name, int flags) {
		if (getInstantAppPackageName(Binder.getCallingUid()) != null) {
		public PermissionInfo getPermissionInfo(String name, String packageName, int flags) {
		final int callingUid = Binder.getCallingUid();
		if (getInstantAppPackageName(callingUid) != null) {
		return null;
		}
		// reader
		synchronized (mPackages) {
		final BasePermission p = mSettings.mPermissions.get(name);
		if (p != null) {
		return generatePermissionInfo(p, flags);
		// If the caller is an app that targets pre 26 SDK drop protection flags.
		final PermissionInfo permissionInfo = generatePermissionInfo(p, flags);
		permissionInfo.protectionLevel = adjustPermissionProtectionFlagsLPr(
		permissionInfo.protectionLevel, packageName, callingUid);
		return permissionInfo;
		}
		return null;
		}

		private int adjustPermissionProtectionFlagsLPr(int protectionLevel,
		String packageName, int uid) {
		// Signature permission flags area always reported
		final int protectionLevelMasked = protectionLevel
		& (PermissionInfo.PROTECTION_NORMAL
		\| PermissionInfo.PROTECTION_DANGEROUS
		\| PermissionInfo.PROTECTION_SIGNATURE);
		if (protectionLevelMasked == PermissionInfo.PROTECTION_SIGNATURE) {
		return protectionLevel;
		}

		// System sees all flags.
		final int appId = UserHandle.getAppId(uid);
		if (appId == Process.SYSTEM_UID \|\| appId == Process.ROOT_UID
		\|\| appId == Process.SHELL_UID) {
		return protectionLevel;
		}

		// Normalize package name to handle renamed packages and static libs
		packageName = resolveInternalPackageNameLPr(packageName,
		PackageManager.VERSION_CODE_HIGHEST);

		// Apps that target O see flags for all protection levels.
		final PackageSetting ps = mSettings.mPackages.get(packageName);
		if (ps == null) {
		return protectionLevel;
		}
		if (ps.appId != appId) {
		return protectionLevel;
		}

		final PackageParser.Package pkg = mPackages.get(packageName);
		if (pkg == null) {
		return protectionLevel;
		}
		if (pkg.applicationInfo.targetSdkVersion < Build.VERSION_CODES.O) {
		return protectionLevelMasked;
		}

		return protectionLevel;
		}

		@Override