platform_system_sepolicy/public/bufferhubd.te

# bufferhubd
type bufferhubd, domain, mlstrustedsubject;
type bufferhubd_exec, exec_type, file_type;

hal_client_domain(bufferhubd, hal_graphics_allocator)

pdx_server(bufferhubd, bufferhub_client)
pdx_client(bufferhubd, performance_client)

# Access the GPU.
allow bufferhubd gpu_device:chr_file rw_file_perms;

# Access /dev/ion
allow bufferhubd ion_device:chr_file r_file_perms;

# Receive sync fence FDs from hal_omx_server. Note that hal_omx_server never directly
# connects to bufferhubd via PDX. Instead, a VR app acts as a bridge between
# those two: it talks to hal_omx_server via Binder and talks to bufferhubd via PDX.
# Thus, there is no need to use pdx_client macro.
allow bufferhubd hal_omx_server:fd use;