platform_system_sepolicy/public/hal_audio.te
Mikhail Naganov 804838530e Revert "Remove proc access from hal_audio."
Reason: breaks "Ok google". Soundtrigger module needs to access /proc/asound/pcm.

This reverts commit 5cccb24915.

Bug: 67930353
Change-Id: I67e0912a6795b3715a3321d3fe5147f49cebc9b5
2017-10-18 20:30:14 +00:00

39 lines
1.3 KiB
Text

# HwBinder IPC from client to server, and callbacks
binder_call(hal_audio_client, hal_audio_server)
binder_call(hal_audio_server, hal_audio_client)
add_hwservice(hal_audio_server, hal_audio_hwservice)
allow hal_audio_client hal_audio_hwservice:hwservice_manager find;
allow hal_audio ion_device:chr_file r_file_perms;
userdebug_or_eng(`
# used for pcm capture for debug.
allow hal_audio audiohal_data_file:dir create_dir_perms;
allow hal_audio audiohal_data_file:file create_file_perms;
')
r_dir_file(hal_audio, proc)
r_dir_file(hal_audio, proc_asound)
allow hal_audio audio_device:dir r_dir_perms;
allow hal_audio audio_device:chr_file rw_file_perms;
# Needed to provide debug dump output via dumpsys' pipes.
allow hal_audio shell:fd use;
allow hal_audio shell:fifo_file write;
allow hal_audio dumpstate:fd use;
allow hal_audio dumpstate:fifo_file write;
###
### neverallow rules
###
# Should never execute any executable without a domain transition
neverallow hal_audio { file_type fs_type }:file execute_no_trans;
# Should never need network access.
# Disallow network sockets.
neverallow hal_audio domain:{ tcp_socket udp_socket rawip_socket } *;
# Only audio HAL may directly access the audio hardware
neverallow { halserverdomain -hal_audio_server } audio_device:chr_file *;