hal_client_domain no longer allows read dir permission, in order
to load .so from /system/lib, we have to add this permission ourselves.

bug: 37476803
Change-Id: I1711d158c2f4580f50ac244da10c489df003cc18

Bug: 36604251
Test: Netflix protected content, Play movies
Change-Id: I5c2c542007abddbe56b933ff44d65bd376b6691e

Also allow media.extractor to use media.cas for descrambling.

bug: 22804304

Change-Id: Id283b31badecb11011211a776ba9ff5167a9019d

This switches DRM HAL policy to the design which enables us to
conditionally remove unnecessary rules from domains which are clients
of DRM HAL.

Domains which are clients of DRM HAL, such as mediadrmserver domain,
are granted rules targeting hal_drm only when the DRM HAL runs in
passthrough mode (i.e., inside the client's process). When the HAL
runs in binderized mode (i.e., in another process/domain, with
clients talking to the HAL over HwBinder IPC), rules targeting hal_drm
are not granted to client domains.

Domains which offer a binderized implementation of DRM HAL, such as
hal_drm_default domain, are always granted rules targeting hal_drm.

Test: Play movie using Google Play Movies
Test: Play movie using Netflix
Bug: 34170079
Change-Id: I3ab0e84818ccd61e54b90f7ade3509b7dbf86fb9

Change-Id: I19d65a83c5c3f42296e8cd8a425bf1f64651068f
related-to-bug:32815560

Introduce the add_service() macro which wraps up add/find
permissions for the source domain with a neverallow preventing
others from adding it. Only a particular domain should
add a particular service.

Use the add_service() macro to automatically add a neverallow
that prevents other domains from adding the service.

mediadrmserver was adding services labeled mediaserver_service.
Drop the add permission as it should just need the find
permission.

Additionally, the macro adds the { add find } permission which
causes some existing neverallow's to assert. Adjust those
neverallow's so "self" can always find.

Test: compile and run on hikey and emulator. No new denials were
found, and all services, where applicable, seem to be running OK.

Change-Id: Ibbd2a5304edd5f8b877bc86852b0694732be993c
Signed-off-by: William Roberts <william.c.roberts@intel.com>

HAL clients should not be annotated with hal_x and haldomain. This may
grant them too much access. Instead, the policy needed for using
in-process HALs should be directly embedded into the client's domain
rules.

This reverts the moving of rules out of mediadrmserver in commit
c86f42b9.

Test: YouTube videos play back, no mediadrmserver denials
Bug: 34715716
Bug: 32815560
Change-Id: Ib57ef880bcc306c6e01f2c24c0f3a4298598eb9a

bug:32815560
Change-Id: I494141b47fcd2e7e0cc02aa58d8df9a222060b3f

reflect the change from "mediaanalytics" to "mediametrics"

Also incorporates a broader access to the service -- e.g. anyone.
This reflects that a number of metrics submissions come from application
space and not only from our controlled, trusted media related processes.
The metrics service (in another commit) checks on the source of any
incoming metrics data and limits what is allowed from unprivileged
clients.

Bug: 34615027
Test: clean build, service running and accessible
Change-Id: I657c343ea1faed536c3ee1940f1e7a178e813a42

This restricts access to ro.serialno and ro.boot.serialno, the two
system properties which contain the device's serial number, to a
select few SELinux domains which need the access. In particular, this
removes access to these properties from Android apps. Apps can access
the serial number via the public android.os.Build API. System
properties are not public API for apps.

The reason for the restriction is that serial number is a globally
unique identifier which cannot be reset by the user. Thus, it can be
used as a super-cookie by apps. Apps need to wean themselves off of
identifiers not resettable by the user.

Test: Set up fresh GMS device, install some apps via Play, update some apps, use Chrome
Test: Access the device via ADB (ADBD exposes serial number)
Test: Enable MTP over USB, use mtp-detect to confirm that serial number is reported in MTP DeviceInfo
Bug: 31402365
Bug: 33700679
Change-Id: I4713133b8d78dbc63d8272503e80cd2ffd63a2a7

media framework analytics are gathered in a separate service.
define a context for this new service, allow various
media-related services and libraries to access this new service.

Bug: 30267133
Test: ran media CTS, watched for selinux denials.
Change-Id: I5aa5aaa5aa9e82465b8024f87ed32d6ba4db35ca

Test: make
Change-Id: Icf77940472c7b7776b731c0ce0c1f53ac8bd198c

Allow SurfaceFlinger to call into IAllocator, and allow everyone to access
IAllocator's fd.

Specifically,

hwbinder_use(...) for
avc: denied { call } for scontext=u:r:hal_graphics_allocator:s0 tcontext=u:r:hwservicemanager:s0 tclass=binder permissive=1
avc: denied { transfer } for scontext=u:r:hal_graphics_allocator:s0 tcontext=u:r:hwservicemanager:s0 tclass=binder permissive=1

allow ... ion_device:chr_file r_file_perms for
avc: denied { read } for name="ion" dev="tmpfs" ino=15014 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:ion_device:s0 tclass=chr_file permissive=1
avc: denied { open } for path="/dev/ion" dev="tmpfs" ino=15014 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:ion_device:s0 tclass=chr_file permissive=1
avc: denied { ioctl } for path="/dev/ion" dev="tmpfs" ino=15014 ioctlcmd=4900 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:ion_device:s0 tclass=chr_file permissive=1

allow ... gpu_device:chr_file rw_file_perms; for
avc: denied { read write } for name="kgsl-3d0" dev="tmpfs" ino=14956 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:gpu_device:s0 tclass=chr_file permissive=1
avc: denied { open } for path="/dev/kgsl-3d0" dev="tmpfs" ino=14956 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:gpu_device:s0 tclass=chr_file permissive=1
avc: denied { ioctl } for path="/dev/kgsl-3d0" dev="tmpfs" ino=14956 ioctlcmd=940 scontext=u:r:hal_graphics_allocator:s0 tcontext=u:object_r:gpu_device:s0 tclass=chr_file permissive=1

binder_call(surfaceflinger, ...) for
avc: denied { call } for scontext=u:r:surfaceflinger:s0 tcontext=u:r:hal_graphics_allocator:s0 tclass=binder permissive=1

allow ... ...:fd use for
avc: denied { use } for path="anon_inode:dmabuf" dev="anon_inodefs" ino=12794 scontext=u:r:surfaceflinger:s0 tcontext=u:r:hal_graphics_allocator:s0 tclass=fd permissive=1

Bug: 32021161
Test: make bootimage
Change-Id: Ie7700142313407ac438c43dd1a85544dc4c67f13

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

(cherry picked from commit d2dbc899)

bug: 30087072
bug: 29937024
Change-Id: I8bf3032b8455556ff5332f538f43aeb514d3b290

bug: 30087072
bug: 29937024
Change-Id: I8bf3032b8455556ff5332f538f43aeb514d3b290

Needed to support session reclaiming

bug: 27916039
Change-Id: I464e6db5b9bc4e83f85cb4623eeca340e1efd603

bug: 26782004
Change-Id: Ie3d9289d15446efa160550185a2d565e3be2980f

Remove from unpriv_socket_ioctls but grant each user of unpriv_socket_ioctls
use of unpriv_tty_ioctls

Bug: 26990688
Change-Id: I998e09091de5a7234ad0049758d5dad0b35722f7

Part of media security hardening

This is an intermediate step toward moving
mediadrm to a new service separate from mediaserver.
This first step allows mediadrmservice to run based
on the system property media.mediadrmservice.enable
so it can be selectively enabled on devices that
support using native_handles for secure buffers.

bug: 22990512
Change-Id: I2208c1e87a6bd8d5bfaed06b1fdcb0509c11cff2