android10/system/sepolicy/public/fingerprintd.te

type fingerprintd, domain;
type fingerprintd_exec, system_file_type, exec_type, file_type;

binder_use(fingerprintd)

# Scan through /system/lib64/hw looking for installed HALs
allow fingerprintd system_file:dir r_dir_perms;

# need to find KeyStore and add self
add_service(fingerprintd, fingerprintd_service)

# allow HAL module to read dir contents
allow fingerprintd fingerprintd_data_file:file { create_file_perms };

# allow HAL module to read/write/unlink contents of this dir
allow fingerprintd fingerprintd_data_file:dir rw_dir_perms;

# Need to add auth tokens to KeyStore
use_keystore(fingerprintd)
allow fingerprintd keystore:keystore_key { add_auth };

# For permissions checking
binder_call(fingerprintd, system_server);
allow fingerprintd permission_service:service_manager find;

allow fingerprintd ion_device:chr_file r_file_perms;