platform_system_sepolicy/private/bluetooth.te
Jason Macnak a93398051c Adds GPU sepolicy to support devices with DRM gralloc/rendering
... such as Cuttlefish (Cloud Android virtual device) which has a
DRM virtio-gpu based gralloc and (sometimes) DRM virtio-gpu based
rendering (when forwarding rendering commands to the host machine
with Mesa3D in the guest and virglrenderer on the host).

After this change is submitted, changes such as aosp/1997572 can
be submitted to removed sepolicy that is currently duplicated
across device/google/cuttlefish and device/linaro/dragonboard as
well.

Adds a sysfs_gpu type (existing replicated sysfs_gpu definitions
across several devices are removed in the attached topic). The
uses of `sysfs_gpu:file` comes from Mesa using libdrm's
`drmGetDevices2()` which calls into `drmParsePciDeviceInfo()` to
get vendor id, device id, version etc.

Bug: b/161819018
Test: launch_cvd
Test: launch_cvd --gpu_mode=gfxstream
Change-Id: I4f7d4b0fb90bfeef72f94396ff0c5fe44d53510c
Merged-In: I4f7d4b0fb90bfeef72f94396ff0c5fe44d53510c
2022-04-18 17:30:56 -07:00

95 lines
3.6 KiB
Text

# bluetooth app
typeattribute bluetooth coredomain, mlstrustedsubject;
app_domain(bluetooth)
net_domain(bluetooth)
# Socket creation under /data/misc/bluedroid.
type_transition bluetooth bluetooth_data_file:sock_file bluetooth_socket;
# Allow access to net_admin ioctls
allowxperm bluetooth self:udp_socket ioctl priv_sock_ioctls;
wakelock_use(bluetooth);
# Data file accesses.
allow bluetooth bluetooth_data_file:dir create_dir_perms;
allow bluetooth bluetooth_data_file:notdevfile_class_set { create_file_perms link };
allow bluetooth bluetooth_logs_data_file:dir rw_dir_perms;
allow bluetooth bluetooth_logs_data_file:file create_file_perms;
# Socket creation under /data/misc/bluedroid.
allow bluetooth bluetooth_socket:sock_file create_file_perms;
allow bluetooth self:global_capability_class_set net_admin;
allow bluetooth self:global_capability2_class_set wake_alarm;
# tethering
allow bluetooth self:packet_socket create_socket_perms_no_ioctl;
allow bluetooth self:global_capability_class_set { net_admin net_raw net_bind_service };
allow bluetooth self:tun_socket create_socket_perms_no_ioctl;
allow bluetooth tun_device:chr_file rw_file_perms;
allowxperm bluetooth tun_device:chr_file ioctl { TUNGETIFF TUNSETIFF };
allow bluetooth efs_file:dir search;
# allow Bluetooth to access uhid device for HID profile
allow bluetooth uhid_device:chr_file rw_file_perms;
allow bluetooth gpu_device:chr_file rw_file_perms;
allow bluetooth gpu_device:dir r_dir_perms;
# proc access.
allow bluetooth proc_bluetooth_writable:file rw_file_perms;
# For Bluetooth to check what profile are available
allow bluetooth proc_filesystems:file r_file_perms;
get_prop(bluetooth, incremental_prop)
# Allow write access to bluetooth specific properties
set_prop(bluetooth, binder_cache_bluetooth_server_prop);
neverallow { domain -bluetooth -init }
binder_cache_bluetooth_server_prop:property_service set;
set_prop(bluetooth, bluetooth_a2dp_offload_prop)
set_prop(bluetooth, bluetooth_audio_hal_prop)
set_prop(bluetooth, bluetooth_prop)
set_prop(bluetooth, exported_bluetooth_prop)
set_prop(bluetooth, pan_result_prop)
allow bluetooth audioserver_service:service_manager find;
allow bluetooth bluetooth_service:service_manager find;
allow bluetooth drmserver_service:service_manager find;
allow bluetooth mediaserver_service:service_manager find;
allow bluetooth radio_service:service_manager find;
allow bluetooth app_api_service:service_manager find;
allow bluetooth system_api_service:service_manager find;
allow bluetooth network_stack_service:service_manager find;
allow bluetooth system_suspend_control_service:service_manager find;
allow bluetooth hal_audio_service:service_manager find;
# already open bugreport file descriptors may be shared with
# the bluetooth process, from a file in
# /data/data/com.android.shell/files/bugreports/bugreport-*.
allow bluetooth shell_data_file:file read;
# Bluetooth audio needs RT scheduling to meet deadlines, allow sys_nice
allow bluetooth self:global_capability_class_set sys_nice;
hal_client_domain(bluetooth, hal_bluetooth)
hal_client_domain(bluetooth, hal_telephony)
# Bluetooth A2DP offload requires binding with audio HAL
hal_client_domain(bluetooth, hal_audio)
read_runtime_log_tags(bluetooth)
###
### Neverallow rules
###
### These are things that the bluetooth app should NEVER be able to do
###
# Superuser capabilities.
# Bluetooth requires net_{admin,raw,bind_service} and wake_alarm and block_suspend and sys_nice.
neverallow bluetooth self:global_capability_class_set ~{ net_admin net_raw net_bind_service sys_nice};
neverallow bluetooth self:global_capability2_class_set ~{ wake_alarm block_suspend };