setid_type
static bool id_permitted_for_cred(const struct cred *old, kid_t new_id, enum setid_type new_type)
static enum sid_policy_type setid_policy_lookup(kid_t src, kid_t dst, enum setid_type new_type)
enum setid_type type;
enum setid_type type;
const char __user *ubuf, size_t len, enum setid_type policy_type)