Merge "New API for getting uids have specific permissions from SystemConfig"

core/api/system-current.txt

@@ -7539,6 +7539,7 @@ package android.os {
   public class SystemConfigManager {
     method @NonNull @RequiresPermission(android.Manifest.permission.READ_CARRIER_APP_INFO) public java.util.Set<java.lang.String> getDisabledUntilUsedPreinstalledCarrierApps();
     method @NonNull @RequiresPermission(android.Manifest.permission.READ_CARRIER_APP_INFO) public java.util.Map<java.lang.String,java.util.List<java.lang.String>> getDisabledUntilUsedPreinstalledCarrierAssociatedApps();
+    method @NonNull @RequiresPermission(android.Manifest.permission.GET_RUNTIME_PERMISSIONS) public int[] getSystemPermissionUids(@NonNull String);
   }
 
   public class SystemProperties {

core/java/android/os/ISystemConfig.aidl

@@ -35,4 +35,9 @@ interface ISystemConfig {
      * @see SystemConfigManager#getDisabledUntilUsedPreinstalledCarrierAssociatedAppEntries
      */
     Map getDisabledUntilUsedPreinstalledCarrierAssociatedAppEntries();
+
+    /**
+     * @see SystemConfigManager#getSystemPermissionUids
+     */
+    int[] getSystemPermissionUids(String permissionName);
 }

core/java/android/os/SystemConfigManager.java

@@ -111,4 +111,22 @@ public class SystemConfigManager {
             return Collections.emptyMap();
         }
     }
+
+    /**
+     * Get uids which have been granted given permission in system configuration.
+     *
+     * The uids and assigning permissions are defined on data/etc/platform.xml
+     *
+     * @param permissionName The target permission.
+     * @return The uids have been granted given permission in system configuration.
+     */
+    @RequiresPermission(Manifest.permission.GET_RUNTIME_PERMISSIONS)
+    @NonNull
+    public int[] getSystemPermissionUids(@NonNull String permissionName) {
+        try {
+            return mInterface.getSystemPermissionUids(permissionName);
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
 }

services/java/com/android/server/SystemConfigService.java

@@ -21,6 +21,10 @@ import static java.util.stream.Collectors.toMap;
 import android.Manifest;
 import android.content.Context;
 import android.os.ISystemConfig;
+import android.util.ArraySet;
+import android.util.SparseArray;
+
+import com.android.internal.util.ArrayUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -64,6 +68,22 @@ public class SystemConfigService extends SystemService {
             return SystemConfig.getInstance()
                     .getDisabledUntilUsedPreinstalledCarrierAssociatedApps();
         }
+
+        @Override
+        public int[] getSystemPermissionUids(String permissionName) {
+            mContext.enforceCallingOrSelfPermission(Manifest.permission.GET_RUNTIME_PERMISSIONS,
+                    "getSystemPermissionUids requires GET_RUNTIME_PERMISSIONS");
+            final List<Integer> uids = new ArrayList<>();
+            final SparseArray<ArraySet<String>> systemPermissions =
+                    SystemConfig.getInstance().getSystemPermissions();
+            for (int i = 0; i < systemPermissions.size(); i++) {
+                final ArraySet<String> permissions = systemPermissions.valueAt(i);
+                if (permissions != null && permissions.contains(permissionName)) {
+                    uids.add(systemPermissions.keyAt(i));
+                }
+            }
+            return ArrayUtils.convertToIntArray(uids);
+        }
     };
 
     public SystemConfigService(Context context) {