Allow the shell user to run tzdatacheck, which is required
to enable a new host side test.
This change also adds some additional checks to
tzdatacheck.te to ensure that OEMs opening up permissions
further don't accidentally create a security hole.
Bug: 31008728
Test: Ran CTS
Change-Id: I6ebfb467526b6b2ea08f891420eea24c81ed1e36
Divide policy into public and private components. This is the first
step in splitting the policy creation for platform and non-platform
policies. The policy in the public directory will be exported for use
in non-platform policy creation. Backwards compatibility with it will
be achieved by converting the exported policy into attribute-based
policy when included as part of the non-platform policy and a mapping
file will be maintained to be included with the platform policy that
maps exported attributes of previous versions to the current platform
version.
Eventually we would like to create a clear interface between the
platform and non-platform device components so that the exported policy,
and the need for attributes is minimal. For now, almost all types and
avrules are left in public.
Test: Tested by building policy and running on device.
Change-Id: Idef796c9ec169259787c3f9d8f423edf4ce27f8c
