1# HwBinder IPC from client to server, and callbacks
2binder_call(hal_audio_client, hal_audio_server)
3binder_call(hal_audio_server, hal_audio_client)
4
5add_hwservice(hal_audio_server, hal_audio_hwservice)
6allow hal_audio_client hal_audio_hwservice:hwservice_manager find;
7
8allow hal_audio ion_device:chr_file r_file_perms;
9
10r_dir_file(hal_audio, proc)
11r_dir_file(hal_audio, proc_asound)
12allow hal_audio_server audio_device:dir r_dir_perms;
13allow hal_audio_server audio_device:chr_file rw_file_perms;
14
15# Needed to provide debug dump output via dumpsys' pipes.
16allow hal_audio shell:fd use;
17allow hal_audio shell:fifo_file write;
18allow hal_audio dumpstate:fd use;
19allow hal_audio dumpstate:fifo_file write;
20
21# allow hal audio to use vnbinder
22vndbinder_use(hal_audio)
23
24###
25### neverallow rules
26###
27
28# Should never execute any executable without a domain transition
29neverallow hal_audio_server { file_type fs_type }:file execute_no_trans;
30
31# Should never need network access.
32# Disallow network sockets.
33neverallow hal_audio_server domain:{ tcp_socket udp_socket rawip_socket } *;
34
35# Only audio HAL may directly access the audio hardware
36neverallow { halserverdomain -hal_audio_server } audio_device:chr_file *;
37
38get_prop(hal_audio, bluetooth_a2dp_offload_prop)
39