smack_populate_secattr
int smack_populate_secattr(struct smack_known *skp);
rc = smack_populate_secattr(skp);
rc = smack_populate_secattr(&smack_known_floor);
rc = smack_populate_secattr(&smack_known_hat);
rc = smack_populate_secattr(&smack_known_huh);
rc = smack_populate_secattr(&smack_known_star);
rc = smack_populate_secattr(&smack_known_web);