mediaserver, mediaextractor, drmserver: allow vendor_overlay_file

MediaPlayer cannot load a video from RRO packages.
So, add allow rules which is necessary to play the video.

Bug: b/154795779
Test: check if MediaPlayer can load a video in RRO
Change-Id: I06eed146b6e70a548b6b4f4faf56ba2bccd68140
diff --git a/private/coredomain.te b/private/coredomain.te
index 32a1e3f..ab731f1 100644
--- a/private/coredomain.te
+++ b/private/coredomain.te
@@ -88,7 +88,7 @@
         -webview_zygote
         -zygote
         userdebug_or_eng(`-heapprofd')
-    } vendor_overlay_file:file r_file_perms;
+    } vendor_overlay_file:file open;
 ')
 
 # Core domains are not permitted to use kernel interfaces which are not
diff --git a/public/drmserver.te b/public/drmserver.te
index 12c080a..e2c6638 100644
--- a/public/drmserver.te
+++ b/public/drmserver.te
@@ -49,6 +49,9 @@
 allow drmserver oemfs:dir search;
 allow drmserver oemfs:file r_file_perms;
 
+# overlay package access
+allow drmserver vendor_overlay_file:file { read map };
+
 add_service(drmserver, drmserver_service)
 allow drmserver permission_service:service_manager find;
 allow drmserver mediametrics_service:service_manager find;
diff --git a/public/mediaextractor.te b/public/mediaextractor.te
index 4bee4f8..1f34030 100644
--- a/public/mediaextractor.te
+++ b/public/mediaextractor.te
@@ -34,6 +34,9 @@
 allow mediaextractor asec_apk_file:file { read getattr };
 allow mediaextractor ringtone_file:file { read getattr };
 
+# overlay package access
+allow mediaextractor vendor_overlay_file:file { read map };
+
 # scan extractor library directory to dynamically load extractors
 allow mediaextractor system_file:dir { read open };
 
diff --git a/public/mediaserver.te b/public/mediaserver.te
index 832eaa3..86db99c 100644
--- a/public/mediaserver.te
+++ b/public/mediaserver.te
@@ -128,6 +128,9 @@
 # b/120491318 allow mediaserver to access void:fd
 allow mediaserver vold:fd use;
 
+# overlay package access
+allow mediaserver vendor_overlay_file:file { read getattr map };
+
 hal_client_domain(mediaserver, hal_allocator)
 
 ###