cameraserver.te

# cameraserver - camera daemon
type cameraserver, domain, domain_deprecated;
type cameraserver_exec, exec_type, file_type;

typeattribute cameraserver mlstrustedsubject;

net_domain(cameraserver)
init_daemon_domain(cameraserver)

r_dir_file(cameraserver, sdcard_type)

binder_use(cameraserver)
binder_call(cameraserver, binderservicedomain)
binder_call(cameraserver, appdomain)
binder_service(cameraserver)

# Required by Widevine DRM (b/22990512)
allow cameraserver self:process execmem;

allow cameraserver kernel:system module_request;
allow cameraserver media_data_file:dir create_dir_perms;
allow cameraserver media_data_file:file create_file_perms;
allow cameraserver camera_data_file:dir create_dir_perms;
allow cameraserver camera_data_file:file create_file_perms;
allow cameraserver app_data_file:dir search;
allow cameraserver app_data_file:file rw_file_perms;
allow cameraserver sdcard_type:file write;
allow cameraserver gpu_device:chr_file rw_file_perms;
allow cameraserver video_device:dir r_dir_perms;
allow cameraserver video_device:chr_file rw_file_perms;
allow cameraserver audio_device:dir r_dir_perms;
allow cameraserver tee_device:chr_file rw_file_perms;

set_prop(cameraserver, audio_prop)

# Access audio devices at all.
allow cameraserver audio_device:chr_file rw_file_perms;

# XXX Label with a specific type?
allow cameraserver sysfs:file r_file_perms;

# Read resources from open apk files passed over Binder.
allow cameraserver apk_data_file:file { read getattr };
allow cameraserver asec_apk_file:file { read getattr };

# Read /data/data/com.android.providers.telephony files passed over Binder.
allow cameraserver radio_data_file:file { read getattr };

# Use pipes passed over Binder from app domains.
allow cameraserver appdomain:fifo_file { getattr read write };

allow cameraserver rpmsg_device:chr_file rw_file_perms;

# Inter System processes communicate over named pipe (FIFO)
allow cameraserver system_server:fifo_file r_file_perms;

# Camera data
r_dir_file(cameraserver, camera_data_file)
r_dir_file(cameraserver, media_rw_data_file)

# Grant access to audio files to cameraserver
allow cameraserver audio_data_file:dir ra_dir_perms;
allow cameraserver audio_data_file:file create_file_perms;

# Read/[write] to /proc/net/xt_qtaguid/ctrl and /dev/xt_qtaguid
allow cameraserver qtaguid_proc:file rw_file_perms;
allow cameraserver qtaguid_device:chr_file r_file_perms;

# Allow abstract socket connection
allow cameraserver rild:unix_stream_socket { connectto read write setopt };

# Needed on some devices for playing DRM protected content,
# but seems expected and appropriate for all devices.
unix_socket_connect(cameraserver, drmserver, drmserver)

# Needed on some devices for playing audio on paired BT device,
# but seems appropriate for all devices.
unix_socket_connect(cameraserver, bluetooth, bluetooth)

# Connect to tee service.
allow cameraserver tee:unix_stream_socket connectto;

allow cameraserver activity_service:service_manager find;
allow cameraserver appops_service:service_manager find;
allow cameraserver audioserver_service:service_manager find;
allow cameraserver cameraproxy_service:service_manager find;
allow cameraserver cameraserver_service:service_manager { add find };
allow cameraserver batterystats_service:service_manager find;
allow cameraserver drmserver_service:service_manager find;
allow cameraserver mediaextractor_service:service_manager find;
allow cameraserver mediaserver_service:service_manager find;
allow cameraserver permission_service:service_manager find;
allow cameraserver power_service:service_manager find;
allow cameraserver processinfo_service:service_manager find;
allow cameraserver scheduling_policy_service:service_manager find;
allow cameraserver surfaceflinger_service:service_manager find;

# /oem access
allow cameraserver oemfs:dir search;
allow cameraserver oemfs:file r_file_perms;

use_drmservice(cameraserver)
allow cameraserver drmserver:drmservice {
    consumeRights
    setPlaybackStatus
    openDecryptSession
    closeDecryptSession
    initializeDecryptUnit
    decrypt
    finalizeDecryptUnit
    pread
};

###
### neverallow rules
###

# cameraserver should never execute any executable without a
# domain transition
neverallow cameraserver { file_type fs_type }:file execute_no_trans;