Devices that store their BT MAC address in /data/misc/bluedroid/ need
to find another place for that file.

Bug: 36602160
Test: Restart Bluetooth, check for selinux denials/files in /data/misc
Change-Id: Ib8d610f201a8c35f95b464c24857c6639205bc66

Vendor and system components are only allowed to share files by
passing open FDs over HIDL. Ban all directory access and all file
accesses other than what can be applied to an open file:
stat/read/write/append.

This commit marks core data types as core_data_file_type and bans
access to non-core domains with an exemption for apps. A temporary
exemption is also granted to domains that currently rely on
access with TODOs and bug number for each exemption.

Bug: 34980020
Test: Build and boot Marlin. Make phone call, watch youtube video.
      No new denials observed.
Change-Id: I320dd30f9f0a5bf2f9bb218776b4bccdb529b197

Bug: 35328775
Test: works in both binderized and passthrough modes
Merged-In: I1f827b4983e5e67c516e4488ad3497dd62db7e20
Change-Id: I1f827b4983e5e67c516e4488ad3497dd62db7e20

Bug: 35328775
Test: works in both binderized and passthrough modes
Change-Id: I1f827b4983e5e67c516e4488ad3497dd62db7e20

Bug: 35657600
Test: user build of Marlin starts with BT
Change-Id: Ic2380da66467b9b1c385da7d7fa10fddf4c7fae1

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

Give the default implementation access to /data/misc/blue* for
backward compatibility.

Future Bluetooth HAL implementations should use the system log.

Test: VTS tests pass, Bluetooth starts/stops
Change-Id: Ia67896b46e3e9ce3421bbb0c8a8542f290b39083

This marks all HAL domain implementations with the haldomain attribute
so that rules can be written which apply to all HAL implementations.

This follows the pattern used for appdomain, netdomain and
bluetoothdomain.

Test: No change to policy according to sesearch.
Bug: 34180936
Change-Id: I0cfe599b0d49feed36538503c226dfce41eb65f6

Bug: 31972505
Test: VTS test passes, Bluetooth starts/stops
Change-Id: Ic068c9fca7c50e63c5b6e3d86a2ee6cc53207e08