platform_system_sepolicy/surfaceflinger.te

# surfaceflinger - display compositor service
type surfaceflinger, domain;
permissive surfaceflinger;
type surfaceflinger_exec, exec_type, file_type;

init_daemon_domain(surfaceflinger)
typeattribute surfaceflinger mlstrustedsubject;

# Talk to init over the property socket.
unix_socket_connect(surfaceflinger, property, init)

# Perform Binder IPC.
binder_use(surfaceflinger)
binder_call(surfaceflinger, system_server)
binder_service(surfaceflinger)

# 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 *;

# Set properties.
allow surfaceflinger system_prop:property_service set;
allow surfaceflinger ctl_default_prop:property_service set;

# Use open files supplied by an app.
allow surfaceflinger appdomain:fd use;
allow surfaceflinger platform_app_data_file:file { read write };
allow surfaceflinger app_data_file:file { read write };

# Use open file provided by bootanim.
allow surfaceflinger bootanim:fd use;

# Allow a dumpstate triggered screenshot
binder_call(surfaceflinger, dumpstate)
allow surfaceflinger shell_data_file:file write;