Add PermissionManager exposing SPLIT_PERMISSIONS

The Permission Controller app (a mainline module) needs to be able to
read the SPLIT_PERMISSIONS. Hence this array needs to be exposed at
least as system-api. We need to make sure that the PackageParser,
PackageManager and Permission Controller app agree on which permissions
are split, hence it is best to define them at a single location.

I think exposing the split permissions to developers is useless and
potentially confusing. The app should never request a permission that
was split. The app should just behave as if split permissions do not
exist. The Permission Controller / Package Manager deal with the
split permissions and add them when needed. Hence I don't think we
should expose this data to 3rd parties.

Bug: 110953302
Test: requested permissions
Change-Id: I6951c52979c89ee5c13a4a14da125e1a01f2e234
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 91af0ec..fd09a278 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -232,6 +232,7 @@
 import android.os.storage.StorageManagerInternal;
 import android.os.storage.VolumeInfo;
 import android.os.storage.VolumeRecord;
+import android.permission.PermissionManager;
 import android.provider.Settings.Global;
 import android.provider.Settings.Secure;
 import android.security.KeyStore;
@@ -2912,13 +2913,15 @@
             if (mIsUpgrade) {
                 final int callingUid = getCallingUid();
 
-                final int numSplitPerms = PackageParser.SPLIT_PERMISSIONS.length;
+                final List<PermissionManager.SplitPermissionInfo> splitPermissions =
+                        mContext.getSystemService(PermissionManager.class).getSplitPermissions();
+                final int numSplitPerms = splitPermissions.size();
                 for (int splitPermNum = 0; splitPermNum < numSplitPerms; splitPermNum++) {
-                    final PackageParser.SplitPermissionInfo splitPerm =
-                            PackageParser.SPLIT_PERMISSIONS[splitPermNum];
-                    final String rootPerm = splitPerm.rootPerm;
+                    final PermissionManager.SplitPermissionInfo splitPerm =
+                            splitPermissions.get(splitPermNum);
+                    final String rootPerm = splitPerm.getRootPermission();
 
-                    if (preUpgradeSdkVersion >= splitPerm.targetSdk) {
+                    if (preUpgradeSdkVersion >= splitPerm.getTargetSdk()) {
                         continue;
                     }
 
@@ -2926,7 +2929,7 @@
                     for (int packageNum = 0; packageNum < numPackages; packageNum++) {
                         final PackageParser.Package pkg = mPackages.valueAt(packageNum);
 
-                        if (pkg.applicationInfo.targetSdkVersion >= splitPerm.targetSdk
+                        if (pkg.applicationInfo.targetSdkVersion >= splitPerm.getTargetSdk()
                                 || !pkg.requestedPermissions.contains(rootPerm)) {
                             continue;
                         }
@@ -2938,7 +2941,7 @@
                             continue;
                         }
 
-                        final String[] newPerms = splitPerm.newPerms;
+                        final String[] newPerms = splitPerm.getNewPermissions();
 
                         final int numNewPerms = newPerms.length;
                         for (int newPermNum = 0; newPermNum < numNewPerms; newPermNum++) {
diff --git a/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java b/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java
index 3c9dd63..6f644dd 100644
--- a/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java
+++ b/services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java
@@ -34,7 +34,6 @@
 import android.content.pm.PackageManagerInternal;
 import android.content.pm.PackageManagerInternal.PackagesProvider;
 import android.content.pm.PackageManagerInternal.SyncAdapterPackagesProvider;
-import android.content.pm.PackageParser;
 import android.content.pm.ProviderInfo;
 import android.content.pm.ResolveInfo;
 import android.media.RingtoneManager;
@@ -48,6 +47,7 @@
 import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.storage.StorageManager;
+import android.permission.PermissionManager;
 import android.print.PrintManager;
 import android.provider.CalendarContract;
 import android.provider.ContactsContract;
@@ -1024,15 +1024,17 @@
         ApplicationInfo applicationInfo = pkg.applicationInfo;
 
         // Automatically attempt to grant split permissions to older APKs
-        final int numSplitPerms = PackageParser.SPLIT_PERMISSIONS.length;
+        final List<PermissionManager.SplitPermissionInfo> splitPermissions =
+                mContext.getSystemService(PermissionManager.class).getSplitPermissions();
+        final int numSplitPerms = splitPermissions.size();
         for (int splitPermNum = 0; splitPermNum < numSplitPerms; splitPermNum++) {
-            final PackageParser.SplitPermissionInfo splitPerm =
-                    PackageParser.SPLIT_PERMISSIONS[splitPermNum];
+            final PermissionManager.SplitPermissionInfo splitPerm =
+                    splitPermissions.get(splitPermNum);
 
             if (applicationInfo != null
-                    && applicationInfo.targetSdkVersion < splitPerm.targetSdk
-                    && permissionsWithoutSplits.contains(splitPerm.rootPerm)) {
-                Collections.addAll(permissions, splitPerm.newPerms);
+                    && applicationInfo.targetSdkVersion < splitPerm.getTargetSdk()
+                    && permissionsWithoutSplits.contains(splitPerm.getRootPermission())) {
+                Collections.addAll(permissions, splitPerm.getNewPermissions());
             }
         }