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