Commit graph

15 commits

Author SHA1 Message Date
Inseob Kim
75806ef3c5 Minimize public policy
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.

Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
           <(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
      to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
2024-03-28 00:33:46 +00:00
Pawan Wagh
c35c8affc3 Allow binder calls from system app to update engine
Allow system_app to call update engine and update engine
to call callback registered by system app.

Test: m Settings && adb install -r
$ANDROID_PRODUCT_OUT/system_ext/priv-app/Settings/Settings.apk,
Update using 16k dev option.
Bug: 295573133

Change-Id: Ice7e75f86283637ad67a675682ecd0d27038d9e7
2024-01-05 21:25:40 +00:00
Kelvin Zhang
60456bd47e Add sepolicy for ro.build.ab_update.ab_ota_partitions
Bug: 283042235
Test: th
Change-Id: Ie2296b75c91fbeb83cb0f3e61d5013b106fb78d0
2023-05-24 18:26:12 -07:00
Kelvin Zhang
187cb2c64c Add sepolicy for IBootControl AIDL
Test: th
Bug: 227536004
Change-Id: I1206b4aae1aab904a76836c893ee583b5ce54624
2022-06-07 16:26:19 -07:00
David Anderson
9e21df22d4 Allow update_engine, recovery, and fastbootd to read snapuserd properties.
Bug: 193833730
Test: OTA applies and boots
Change-Id: I81c089e1763a7e25b23df245f76e04acd52a337e
2021-07-28 22:30:22 -07:00
Mohammad Samiul Islam
606a3dca3e Allow update_engine to communicate with apexd
When we serve compressed APEX via OTA, we need to ensure device has
enough space to decompress them during boot. In order to do that,
update_engine will need to pass metadata about the OTA to apexd so that
it can make calculation about space requirments. Update engine in return
will display warning to user if the space requirement can't be
fulfilled.

Bug: 172911822
Test: manual
Change-Id: Idff25ac8e5165da70c539edcf6b292e04299a5c6
2021-02-19 13:21:51 +00:00
David Anderson
09bb944221 Add sepolicy for starting the snapuserd daemon through init.
Restrict access to controlling snapuserd via ctl properties. Allow
update_engine to control snapuserd, and connect/write to its socket.

update_engine needs this access so it can create the appropriate dm-user
device (which sends queries to snapuserd), which is then used to build
the update snapshot.

This also fixes a bug where /dev/dm-user was not properly labelled. As a
result, snapuserd and update_engine have been granted r_dir_perms to
dm_user_device.

Bug: 168554689
Test: full ota with VABC enabled
Change-Id: I1f65ba9f16a83fe3e8ed41a594421939a256aec0
2020-11-19 21:03:30 +00:00
Yifan Hong
8ac37f025f Support GKI updates
Adds proper file_contexts and domains for pre/postinstall hooks.
Allow the pre/postinstall hooks to communicate with update_engine stable
service.

Bug: 161563386
Test: apply a GKI update

Change-Id: I4437aab8e87ccbe55858150b95f67ec6e445ac1f
2020-08-10 16:10:38 -07:00
Howard Chen
2a2278ee12 Allow update_engine to get gsid property
Allow the update_engine to use the gsid property and to avoid the VAB
merge when running a DSU.

Bug:147071959
Test: ota_e2etest.py

Change-Id: I40220877625453198b217e788e6b3bfab8437f24
2020-05-05 11:21:44 +08:00
Inseob Kim
55e5c9b513 Move system property rules to private
public/property split is landed to selectively export public types to
vendors. So rules happening within system should be in private. This
introduces private/property.te and moves all allow and neverallow rules
from any coredomains to system defiend properties.

Bug: 150331497
Test: system/sepolicy/tools/build_policies.sh
Change-Id: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe
Merged-In: I0d929024ae9f4ae3830d4bf3d59e999febb22cbe
(cherry picked from commit 42c7d8966c)
2020-03-18 16:46:04 +00:00
Yifan Hong
07a99e16e4 update_engine: rules to apply virtual A/B OTA
- /data/gsi/ota/* now has the type ota_image_data_file. At runtime
  during an OTA, update_engine uses libsnapshot to talk to gsid
  to create these images as a backing storage of snapshots. These
  "COW images" stores the changes update_engine has applied to
  the partitions.
  If the update is successful, these changes will be merged to the
  partitions, and these images will be teared down. If the update
  fails, these images will be deleted after rolling back to the
  previous slot.

- /metadata/gsi/ota/* now has the type ota_metadata_file. At runtime
  during an OTA, update_engine and gsid stores update states and
  information of the created snapshots there. At next boot, init
  reads these files to re-create the snapshots.

Beside these assignments, this CL also allows gsid and update_engine
to have the these permissions to do these operations.

Bug: 135752105
Test: apply OTA, no failure
Change-Id: Ibd53cacb6b4ee569c33cffbc18b1b801b62265de
2019-10-02 12:46:47 -07:00
Jeff Vander Stoep
b5da252e45 domain_deprecated is dead
long live domain.te!

Remove all references.

Bug: 28760354
Test: build
Merged-In: I99953ecc7d275fdbe8e56d8f47a27d1f9e1cc09a
Change-Id: I99953ecc7d275fdbe8e56d8f47a27d1f9e1cc09a
2017-07-28 22:01:46 +00:00
Jeff Vander Stoep
7c34e83fcd Move domain_deprecated into private policy
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 76aab82cb3)
2017-07-24 07:39:54 -07:00
Alex Klyubin
f5446eb148 Vendor domains must not use Binder
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
2017-03-24 07:54:00 -07:00
dcashman
cc39f63773 Split general policy into public and private components.
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
2016-10-06 13:09:06 -07:00