This switches most remaining HALs to the _client/_server approach.
To unblock efforts blocked on majority of HALs having to use this
model, this change does not remove unnecessary rules from clients of
these HALs. That work will be performed in follow-up commits. This
commit only adds allow rules and thus does not break existing
functionality.
The HALs not yet on the _client/_server model after this commit are:
* Allocator HAL, because it's non-trivial to declare all apps except
isolated apps as clients of this HAL, which they are.
* Boot HAL, because it's still on the non-attributized model and I'm
waiting for update_engine folks to answer a couple of questions
which will let me refactor the policy of this HAL.
Test: mmm system/sepolicy
Test: Device boots, no new denials
Test: Device boots in recovery mode, no new denials
Bug: 34170079
Change-Id: I03e6bcec2fa02f14bdf17d11f7367b62c68a14b9
This switches Bluetooth HAL policy to the design which enables us to
conditionally remove unnecessary rules from domains which are clients
of Bluetooth HAL.
Domains which are clients of Bluetooth HAL, such as bluetooth domain,
are granted rules targeting hal_bluetooth only when the Bluetooth 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_bluetooth are not granted to client domains.
Domains which offer a binderized implementation of Bluetooth HAL, such
as hal_bluetooth_default domain, are always granted rules targeting
hal_bluetooth.
Test: Toggle Bluetooth off and on
Test: Pair with another Android, and transfer a file to that Android
over Bluetooth
Test: Pair with a Bluetooth speaker, play music through that
speaker over Bluetooth
Test: Add bluetooth_hidl_hal_test to device.mk, build & add to device,
adb shell stop,
adb shell /data/nativetest64/bluetooth_hidl_hal_test/bluetooth_hidl_hal_test
Bug: 34170079
Change-Id: I05c3ccf1e98cbbc1450a81bb1000c4fb75eb8a83
This leaves only the existence of bluetooth domain as public API.
All other rules are implementation details of this domain's policy
and are thus now private.
Test: No change to policy according to sesearch, except for
disappearance of all allow rules to do with bluetooth_current
except those created by other domains' allow rules referencing
bluetooth domain from public and vendor policy.
Bug: 31364497
Change-Id: I3521b74a1a9f6c5a5766b358e944dc5444e3c536
app_domain was split up in commit: 2e00e6373f to
enable compilation by hiding type_transition rules from public policy. These
rules need to be hidden from public policy because they describe how objects are
labeled, of which non-platform should be unaware. Instead of cutting apart the
app_domain macro, which non-platform policy may rely on for implementing new app
types, move all app_domain calls to private policy.
(cherry-pick of commit: 76035ea019)
Bug: 33428593
Test: bullhead and sailfish both boot. sediff shows no policy change.
Change-Id: I4beead8ccc9b6e13c6348da98bb575756f539665
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
