Exempt app_data_file_type from neverallow rules.
We need to be able to access app data files from core domains such as
installd even for vendor apps. Those file types should not be
core_data_file_type, so we explicitly exempty app_data_file_type as
well as core_data_file_type from the relevant neverallows.
To prevent misuse of the attribute, add a test to check it is not
applied to anything in file_contexts. Exempt the existing violators in
system policy for now.
Test: Builds
Test: Adding a type with just "file_type, data_file_type, app_data_file_type" works
Test: New test successfully catches violators.
Bug: 171795911
Change-Id: I07bf3ec3db615f8b7a33d8235da5e6d8e2508975
4 files changed