### ### Apps that run with the system UID, e.g. com.android.system.ui, ### com.android.settings. These are not as privileged as the system ### server. ### typeattribute system_app coredomain; typeattribute system_app domain_deprecated; app_domain(system_app) net_domain(system_app) binder_service(system_app) # android.ui and system.ui allow system_app rootfs:dir getattr; # Read and write /data/data subdirectory. allow system_app system_app_data_file:dir create_dir_perms; allow system_app system_app_data_file:{ file lnk_file } create_file_perms; # Read and write to /data/misc/user. allow system_app misc_user_data_file:dir create_dir_perms; allow system_app misc_user_data_file:file create_file_perms; # Access to vold-mounted storage for measuring free space allow system_app mnt_media_rw_file:dir search; # Read wallpaper file. allow system_app wallpaper_file:file r_file_perms; # Read icon file. allow system_app icon_file:file r_file_perms; # Write to properties set_prop(system_app, bluetooth_prop) set_prop(system_app, debug_prop) set_prop(system_app, system_prop) set_prop(system_app, logd_prop) set_prop(system_app, net_radio_prop) set_prop(system_app, system_radio_prop) set_prop(system_app, log_tag_prop) userdebug_or_eng(`set_prop(system_app, logpersistd_logging_prop)') auditallow system_app net_radio_prop:property_service set; auditallow system_app system_radio_prop:property_service set; # ctl interface set_prop(system_app, ctl_default_prop) set_prop(system_app, ctl_bugreport_prop) # Create /data/anr/traces.txt. allow system_app anr_data_file:dir ra_dir_perms; allow system_app anr_data_file:file create_file_perms; # Settings need to access app name and icon from asec allow system_app asec_apk_file:file r_file_perms; # Allow system apps to interact with incidentd binder_call(system_app, incidentd) allow system_app servicemanager:service_manager list; # TODO: scope this down? Too broad? allow system_app { service_manager_type -netd_service -dumpstate_service -installd_service -virtual_touchpad_service -vr_hwc_service }:service_manager find; allow system_app keystore:keystore_key { get_state get insert delete exist list reset password lock unlock is_empty sign verify grant duplicate clear_uid user_changed }; # /sys access r_dir_file(system_app, sysfs_type) control_logd(system_app) read_runtime_log_tags(system_app) ### ### Neverallow rules ### # app domains which access /dev/fuse should not run as system_app neverallow system_app fuse_device:chr_file *;