When an app uses renderscript to compile a Script instance,
renderscript compiles and links the script using /system/bin/bcc and
/system/bin/ld.mc, then places the resulting shared library into the
application's code_cache directory. The application then dlopen()s the
resulting shared library.

Currently, this executable code is writable to the application. This
violates the W^X property (https://en.wikipedia.org/wiki/W%5EX), which
requires any executable code be immutable.

This change introduces a new label "rs_data_file". Files created by
/system/bin/bcc and /system/bin/ld.mc in the application's home
directory assume this label. This allows us to differentiate in
security policy between app created files, and files created by
renderscript on behalf of the application.

Apps are allowed to delete these files, but cannot create or write these
files. This is enforced through a neverallow compile time assertion.

Several exceptions are added to Treble neverallow assertions to support
this functionality. However, because renderscript was previously invoked
from an application context, this is not a Treble separation regression.

This change is needed to support blocking dlopen() for non-renderscript
/data/data files, which will be submitted in a followup change.

Bug: 112357170
Test: cts-tradefed run cts -m CtsRenderscriptTestCases
Change-Id: Ie38bbd94d26db8a418c2a049c24500a5463698a3

This commit adds new SELinux permissions and neverallow rules so that
taking a bugreport does not produce any denials.

Bug: 73256908
Test: Captured bugreports on Sailfish and Walleye and verified
that there were no denials.

Merged-In: If3f2093a2b51934938e3d7e5c42036b2e2bf6de9
Change-Id: If3f2093a2b51934938e3d7e5c42036b2e2bf6de9
(cherry picked from commit daf1cdfa)

This commit adds new SELinux permissions and neverallow rules so that
taking a bugreport does not produce any denials.

Bug: 73256908
Test: Captured bugreports on Sailfish and Walleye and verified
that there were no denials.

Merged-In: If3f2093a2b51934938e3d7e5c42036b2e2bf6de9
Change-Id: I10882e7adda0bb51bf373e0e62fda0acc8ad34eb

long live domain.te!

Remove all references.

Bug: 28760354
Test: build
Merged-In: I99953ecc7d275fdbe8e56d8f47a27d1f9e1cc09a
Change-Id: I99953ecc7d275fdbe8e56d8f47a27d1f9e1cc09a

long live domain.te!

Remove all references.

Bug: 28760354
Test: build
Change-Id: I99953ecc7d275fdbe8e56d8f47a27d1f9e1cc09a
(cherry picked from commit b8d14dc9a6b1593c4ad5210f3079bcac3a9aea33)

This attribute is being actively removed from policy. Since
attributes are not being versioned, partners must not be able to
access and use this attribute. Move it from private and verify in
the logs that rild and tee are not using these permissions.

Bug: 38316109
Test: build and boot Marlin
Test: Verify that rild and tee are not being granted any of these
      permissions.
Merged-In: I31beeb5bdf3885195310b086c1af3432dc6a349b
Change-Id: I31beeb5bdf3885195310b086c1af3432dc6a349b
(cherry picked from commit 76aab82c)

This attribute is being actively removed from policy. Since
attributes are not being versioned, partners must not be able to
access and use this attribute. Move it from private and verify in
the logs that rild and tee are not using these permissions.

Bug: 38316109
Test: build and boot Marlin
Test: Verify that rild and tee are not being granted any of these
      permissions.
Change-Id: I31beeb5bdf3885195310b086c1af3432dc6a349b

On PRODUCT_FULL_TREBLE devices, non-vendor domains (except vendor
apps) are not permitted to use Binder. This commit thus:
* groups non-vendor domains using the new "coredomain" attribute,
* adds neverallow rules restricting Binder use to coredomain and
  appdomain only, and
* temporarily exempts the domains which are currently violating this
  rule from this restriction. These domains are grouped using the new
  "binder_in_vendor_violators" attribute. The attribute is needed
  because the types corresponding to violators are not exposed to the
  public policy where the neverallow rules are.

Test: mmm system/sepolicy
Test: Device boots, no new denials
Test: In Chrome, navigate to ip6.me, play a YouTube video
Test: YouTube: play a video
Test: Netflix: play a movie
Test: Google Camera: take a photo, take an HDR+ photo, record video with
      sound, record slow motion video with sound. Confirm videos play
      back fine and with sound.
Bug: 35870313
Change-Id: I0cd1a80b60bcbde358ce0f7a47b90f4435a45c95

This CLs adds SElinux policies necessary to compile secondary dex files.

When an app loads secondary dex files via the base class loader the
files will get reported to PM. During maintance mode PM will compile the
secondary dex files which were used via the standard installd model
(fork, exec, change uid and lower capabilities).

What is needed:
dexoptanalyzer - needs to read the dex file and the boot image in order
to decide if we need to actually comppile.
dex2oat - needs to be able to create *.oat files next to the secondary
dex files.

Test: devices boots
      compilation of secondary dex files works without selinux denials
      cmd package compile --secondary-dex -f -m speed
com.google.android.gms

Bug: 32871170
Change-Id: I038955b5bc9a72d49f6c24c1cb76276e0f53dc45

In order to support platform changes without simultaneous updates from
non-platform components, the platform and non-platform policies must be
split.  In order to provide a guarantee that policy written for
non-platform objects continues to provide the same access, all types
exposed to non-platform policy are versioned by converting them and the
policy using them into attributes.

This change performs that split, the subsequent versioning and also
generates a mapping file to glue the different policy components
together.

Test: Device boots and runs.
Bug: 31369363
Change-Id: Ibfd3eb077bd9b8e2ff3b2e6a0ca87e44d78b1317

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