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