blob: 95a752169c29b52077ff61e8acfb6481d0473237 [file] [log] [blame]
# audioserver - audio services daemon
type audioserver_exec, exec_type, file_type;
init_daemon_domain(audioserver)
r_dir_file(audioserver, sdcard_type)
binder_use(audioserver)
binder_call(audioserver, binderservicedomain)
binder_call(audioserver, appdomain)
binder_service(audioserver)
hal_client_domain(audioserver, hal_audio)
allow audioserver system_file:dir r_dir_perms;
userdebug_or_eng(`
# used for TEE sink - pcm capture for debug.
allow audioserver media_data_file:dir create_dir_perms;
allow audioserver audioserver_data_file:dir create_dir_perms;
allow audioserver audioserver_data_file:file create_file_perms;
# ptrace to processes in the same domain for memory leak detection
allow audioserver self:process ptrace;
')
add_service(audioserver, audioserver_service)
allow audioserver appops_service:service_manager find;
allow audioserver batterystats_service:service_manager find;
allow audioserver permission_service:service_manager find;
allow audioserver power_service:service_manager find;
allow audioserver scheduling_policy_service:service_manager find;
# Grant access to audio files to audioserver
allow audioserver audio_data_file:dir ra_dir_perms;
allow audioserver audio_data_file:file create_file_perms;
###
### neverallow rules
###
# audioserver should never execute any executable without a
# domain transition
neverallow audioserver { file_type fs_type }:file execute_no_trans;
# The goal of the mediaserver split is to place media processing code into
# restrictive sandboxes with limited responsibilities and thus limited
# permissions. Example: Audioserver is only responsible for controlling audio
# hardware and processing audio content. Cameraserver does the same for camera
# hardware/content. Etc.
#
# Media processing code is inherently risky and thus should have limited
# permissions and be isolated from the rest of the system and network.
# Lengthier explanation here:
# https://android-developers.googleblog.com/2016/05/hardening-media-stack.html
neverallow audioserver domain:{ tcp_socket udp_socket rawip_socket } *;