1# HwBinder IPC from client to server, and callbacks 2binder_call(hal_cas_client, hal_cas_server) 3binder_call(hal_cas_server, hal_cas_client) 4 5hal_attribute_hwservice(hal_cas, hal_cas_hwservice) 6allow hal_cas_server hidl_memory_hwservice:hwservice_manager find; 7 8hal_attribute_service(hal_cas, hal_cas_service) 9 10binder_call(hal_cas_server, servicemanager) 11binder_call(hal_cas_client, servicemanager) 12 13# Permit reading device's serial number from system properties 14get_prop(hal_cas_server, serialno_prop) 15 16# Read files already opened under /data 17allow hal_cas system_data_file:file { getattr read }; 18 19# Read access to pseudo filesystems 20r_dir_file(hal_cas, cgroup) 21allow hal_cas cgroup:dir { search write }; 22allow hal_cas cgroup:file w_file_perms; 23 24r_dir_file(hal_cas, cgroup_v2) 25allow hal_cas cgroup_v2:dir { search write }; 26allow hal_cas cgroup_v2:file w_file_perms; 27 28# Allow access to ion memory allocation device 29allow hal_cas ion_device:chr_file rw_file_perms; 30allow hal_cas hal_graphics_allocator:fd use; 31 32allow hal_cas tee_device:chr_file rw_file_perms; 33 34### 35### neverallow rules 36### 37 38# hal_cas should never execute any executable without a 39# domain transition 40neverallow hal_cas_server { file_type fs_type }:file execute_no_trans; 41 42# do not allow privileged socket ioctl commands 43neverallowxperm hal_cas_server domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls; 44