You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
144 lines
5.0 KiB
144 lines
5.0 KiB
# surfaceflinger - display compositor service
|
|
|
|
typeattribute surfaceflinger coredomain;
|
|
|
|
type surfaceflinger_exec, system_file_type, exec_type, file_type;
|
|
init_daemon_domain(surfaceflinger)
|
|
tmpfs_domain(surfaceflinger)
|
|
|
|
typeattribute surfaceflinger mlstrustedsubject;
|
|
typeattribute surfaceflinger display_service_server;
|
|
|
|
read_runtime_log_tags(surfaceflinger)
|
|
|
|
# Perform HwBinder IPC.
|
|
hal_client_domain(surfaceflinger, hal_graphics_allocator)
|
|
hal_client_domain(surfaceflinger, hal_graphics_composer)
|
|
typeattribute surfaceflinger_tmpfs hal_graphics_composer_client_tmpfs;
|
|
hal_client_domain(surfaceflinger, hal_codec2)
|
|
hal_client_domain(surfaceflinger, hal_omx)
|
|
hal_client_domain(surfaceflinger, hal_configstore)
|
|
hal_client_domain(surfaceflinger, hal_power)
|
|
hal_client_domain(surfaceflinger, hal_bufferhub)
|
|
allow surfaceflinger hidl_token_hwservice:hwservice_manager find;
|
|
|
|
# Perform Binder IPC.
|
|
binder_use(surfaceflinger)
|
|
binder_call(surfaceflinger, binderservicedomain)
|
|
binder_call(surfaceflinger, appdomain)
|
|
binder_call(surfaceflinger, bootanim)
|
|
binder_call(surfaceflinger, system_server);
|
|
binder_service(surfaceflinger)
|
|
|
|
# Binder IPC to bu, presently runs in adbd domain.
|
|
binder_call(surfaceflinger, adbd)
|
|
|
|
# Read /proc/pid files for Binder clients.
|
|
r_dir_file(surfaceflinger, binderservicedomain)
|
|
r_dir_file(surfaceflinger, appdomain)
|
|
|
|
# Access the GPU.
|
|
allow surfaceflinger gpu_device:chr_file rw_file_perms;
|
|
|
|
# Access /dev/graphics/fb0.
|
|
allow surfaceflinger graphics_device:dir search;
|
|
allow surfaceflinger graphics_device:chr_file rw_file_perms;
|
|
|
|
# Access /dev/video1.
|
|
allow surfaceflinger video_device:dir r_dir_perms;
|
|
allow surfaceflinger video_device:chr_file rw_file_perms;
|
|
|
|
# Create and use netlink kobject uevent sockets.
|
|
allow surfaceflinger self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
|
|
|
|
# Set properties.
|
|
set_prop(surfaceflinger, system_prop)
|
|
set_prop(surfaceflinger, exported_system_prop)
|
|
set_prop(surfaceflinger, exported2_system_prop)
|
|
set_prop(surfaceflinger, exported3_system_prop)
|
|
set_prop(surfaceflinger, ctl_bootanim_prop)
|
|
set_prop(surfaceflinger, surfaceflinger_display_prop)
|
|
|
|
# Use open files supplied by an app.
|
|
allow surfaceflinger appdomain:fd use;
|
|
allow surfaceflinger { app_data_file privapp_data_file }:file { read write };
|
|
|
|
# Allow writing surface traces to /data/misc/wmtrace.
|
|
userdebug_or_eng(`
|
|
allow surfaceflinger wm_trace_data_file:dir rw_dir_perms;
|
|
allow surfaceflinger wm_trace_data_file:file { getattr setattr create w_file_perms };
|
|
')
|
|
|
|
# Needed to register as a Perfetto producer.
|
|
perfetto_producer(surfaceflinger)
|
|
|
|
# Use socket supplied by adbd, for cmd gpu vkjson etc.
|
|
allow surfaceflinger adbd:unix_stream_socket { read write getattr };
|
|
|
|
# Allow a dumpstate triggered screenshot
|
|
binder_call(surfaceflinger, dumpstate)
|
|
binder_call(surfaceflinger, shell)
|
|
r_dir_file(surfaceflinger, dumpstate)
|
|
|
|
# media.player service
|
|
|
|
# do not use add_service() as hal_graphics_composer_default may be the
|
|
# provider as well
|
|
#add_service(surfaceflinger, surfaceflinger_service)
|
|
allow surfaceflinger surfaceflinger_service:service_manager { add find };
|
|
|
|
add_service(surfaceflinger, vrflinger_vsync_service)
|
|
|
|
allow surfaceflinger mediaserver_service:service_manager find;
|
|
allow surfaceflinger permission_service:service_manager find;
|
|
allow surfaceflinger power_service:service_manager find;
|
|
allow surfaceflinger vr_manager_service:service_manager find;
|
|
allow surfaceflinger window_service:service_manager find;
|
|
allow surfaceflinger inputflinger_service:service_manager find;
|
|
|
|
|
|
# allow self to set SCHED_FIFO
|
|
allow surfaceflinger self:global_capability_class_set sys_nice;
|
|
allow surfaceflinger proc_meminfo:file r_file_perms;
|
|
r_dir_file(surfaceflinger, cgroup)
|
|
r_dir_file(surfaceflinger, system_file)
|
|
allow surfaceflinger tmpfs:dir r_dir_perms;
|
|
allow surfaceflinger system_server:fd use;
|
|
allow surfaceflinger system_server:unix_stream_socket { read write };
|
|
allow surfaceflinger ion_device:chr_file r_file_perms;
|
|
|
|
# pdx IPC
|
|
pdx_server(surfaceflinger, display_client)
|
|
pdx_server(surfaceflinger, display_manager)
|
|
pdx_server(surfaceflinger, display_screenshot)
|
|
pdx_server(surfaceflinger, display_vsync)
|
|
|
|
pdx_client(surfaceflinger, bufferhub_client)
|
|
pdx_client(surfaceflinger, performance_client)
|
|
|
|
# Allow supplying timestats statistics to statsd
|
|
allow surfaceflinger stats_service:service_manager find;
|
|
allow surfaceflinger statsmanager_service:service_manager find;
|
|
# TODO(146461633): remove this once native pullers talk to StatsManagerService
|
|
binder_call(surfaceflinger, statsd);
|
|
|
|
# Allow pushing jank event atoms to statsd
|
|
userdebug_or_eng(`
|
|
unix_socket_send(surfaceflinger, statsdw, statsd)
|
|
')
|
|
|
|
# Surfaceflinger should not be reading default vendor-defined properties.
|
|
dontaudit surfaceflinger vendor_default_prop:file read;
|
|
|
|
###
|
|
### Neverallow rules
|
|
###
|
|
### surfaceflinger should NEVER do any of this
|
|
|
|
# Do not allow accessing SDcard files as unsafe ejection could
|
|
# cause the kernel to kill the process.
|
|
neverallow surfaceflinger sdcard_type:file rw_file_perms;
|
|
|
|
# b/68864350
|
|
dontaudit surfaceflinger unlabeled:dir search;
|