platform_system_sepolicy/private/vold.te

typeattribute vold coredomain;

init_daemon_domain(vold)

# Switch to more restrictive domains when executing common tools
domain_auto_trans(vold, sgdisk_exec, sgdisk);
domain_auto_trans(vold, sdcardd_exec, sdcardd);

# For a handful of probing tools, we choose an even more restrictive
# domain when working with untrusted block devices
domain_trans(vold, shell_exec, blkid);
domain_trans(vold, shell_exec, blkid_untrusted);
domain_trans(vold, fsck_exec, fsck);
domain_trans(vold, fsck_exec, fsck_untrusted);

# Newly created storage dirs are always treated as mount stubs to prevent us
# from accidentally writing when the mount point isn't present.
type_transition vold storage_file:dir storage_stub_file;
type_transition vold mnt_media_rw_file:dir mnt_media_rw_stub_file;