28 static struct key *request_asymmetric_key(struct key *keyring, uint32_t keyid)  in request_asymmetric_key()
30 	struct key *key;  in request_asymmetric_key()  local
37 	key = get_ima_blacklist_keyring();  in request_asymmetric_key()
38 	if (key) {  in request_asymmetric_key()
41 		kref = keyring_search(make_key_ref(key, 1),  in request_asymmetric_key()
56 			key = ERR_CAST(kref);  in request_asymmetric_key()
58 			key = key_ref_to_ptr(kref);  in request_asymmetric_key()
60 		key = request_key(&key_type_asymmetric, name, NULL);  in request_asymmetric_key()
63 	if (IS_ERR(key)) {  in request_asymmetric_key()
65 				   name, PTR_ERR(key));  in request_asymmetric_key()
66 		switch (PTR_ERR(key)) {  in request_asymmetric_key()
73 			return key;  in request_asymmetric_key()
77 	pr_debug("%s() = 0 [%x]\n", __func__, key_serial(key));  in request_asymmetric_key()
79 	return key;  in request_asymmetric_key()
82 int asymmetric_verify(struct key *keyring, const char *sig,  in asymmetric_verify()
87 	struct key *key;  in asymmetric_verify()  local
101 	key = request_asymmetric_key(keyring, be32_to_cpu(hdr->keyid));  in asymmetric_verify()
102 	if (IS_ERR(key))  in asymmetric_verify()
103 		return PTR_ERR(key);  in asymmetric_verify()
113 	ret = verify_signature(key, &pks);  in asymmetric_verify()
114 	key_put(key);  in asymmetric_verify()