Split mediaprovider as a separate domain from priv_app
MediaProvider requires permissions that diverge from those
of a typical priv_app. This create a new domain and removes
Mtp related permissions from priv_app.
Bug: 33574909
Test: Connect with MTP, download apps and files, select ringtones
Test: DownloadProvider instrument tests, CtsProviderTestCases
Change-Id: I950dc11f21048c34af639cb3ab81873d2a6730a9
diff --git a/private/app_neverallows.te b/private/app_neverallows.te
index 5e47b68..6470b0e 100644
--- a/private/app_neverallows.te
+++ b/private/app_neverallows.te
@@ -5,7 +5,7 @@
# Only allow domains in AOSP to use the untrusted_app_all attribute.
neverallow { untrusted_app_all -untrusted_app -untrusted_app_25 } domain:process fork;
-define(`all_untrusted_apps',`{ untrusted_app_all untrusted_app_25 untrusted_app ephemeral_app isolated_app }')
+define(`all_untrusted_apps',`{ untrusted_app_all untrusted_app_25 untrusted_app ephemeral_app isolated_app mediaprovider }')
# Receive or send uevent messages.
neverallow all_untrusted_apps domain:netlink_kobject_uevent_socket *;
@@ -23,9 +23,9 @@
# Do not allow untrusted apps to connect to the property service
# or set properties. b/10243159
-neverallow all_untrusted_apps property_socket:sock_file write;
-neverallow all_untrusted_apps init:unix_stream_socket connectto;
-neverallow all_untrusted_apps property_type:property_service set;
+neverallow { all_untrusted_apps -mediaprovider } property_socket:sock_file write;
+neverallow { all_untrusted_apps -mediaprovider } init:unix_stream_socket connectto;
+neverallow { all_untrusted_apps -mediaprovider } property_type:property_service set;
# Do not allow untrusted apps to be assigned mlstrustedsubject.
# This would undermine the per-user isolation model being
@@ -63,15 +63,15 @@
} *;
# Do not allow untrusted apps access to /cache
-neverallow all_untrusted_apps { cache_file cache_recovery_file }:dir ~{ r_dir_perms };
-neverallow all_untrusted_apps { cache_file cache_recovery_file }:file ~{ read getattr };
+neverallow { all_untrusted_apps -mediaprovider } { cache_file cache_recovery_file }:dir ~{ r_dir_perms };
+neverallow { all_untrusted_apps -mediaprovider } { cache_file cache_recovery_file }:file ~{ read getattr };
# Do not allow untrusted apps to create/unlink files outside of its sandbox,
# internal storage or sdcard.
# World accessible data locations allow application to fill the device
# with unaccounted for data. This data will not get removed during
# application un-installation.
-neverallow all_untrusted_apps {
+neverallow { all_untrusted_apps -mediaprovider } {
fs_type
-fuse # sdcard
-sdcardfs # sdcard