156 	struct nvme_dhchap_key *key;  in nvme_auth_extract_key()  local
166 	key = kzalloc(sizeof(*key), GFP_KERNEL);  in nvme_auth_extract_key()
167 	if (!key)  in nvme_auth_extract_key()
169 	key->key = kzalloc(allocated_len, GFP_KERNEL);  in nvme_auth_extract_key()
170 	if (!key->key) {  in nvme_auth_extract_key()
175 	key_len = base64_decode(secret, allocated_len, key->key);  in nvme_auth_extract_key()
204 	crc = ~crc32(~0, key->key, key_len);  in nvme_auth_extract_key()
206 	if (get_unaligned_le32(key->key + key_len) != crc) {  in nvme_auth_extract_key()
208 		       get_unaligned_le32(key->key + key_len), crc);  in nvme_auth_extract_key()
212 	key->len = key_len;  in nvme_auth_extract_key()
213 	key->hash = key_hash;  in nvme_auth_extract_key()
214 	return key;  in nvme_auth_extract_key()
216 	kfree_sensitive(key->key);  in nvme_auth_extract_key()
218 	kfree(key);  in nvme_auth_extract_key()
223 void nvme_auth_free_key(struct nvme_dhchap_key *key)  in nvme_auth_free_key()  argument
225 	if (!key)  in nvme_auth_free_key()
227 	kfree_sensitive(key->key);  in nvme_auth_free_key()
228 	kfree(key);  in nvme_auth_free_key()
232 u8 *nvme_auth_transform_key(struct nvme_dhchap_key *key, char *nqn)  in nvme_auth_transform_key()  argument
240 	if (!key || !key->key) {  in nvme_auth_transform_key()
244 	if (key->hash == 0) {  in nvme_auth_transform_key()
245 		transformed_key = kmemdup(key->key, key->len, GFP_KERNEL);  in nvme_auth_transform_key()
248 	hmac_name = nvme_auth_hmac_name(key->hash);  in nvme_auth_transform_key()
250 		pr_warn("Invalid key hash id %d\n", key->hash);  in nvme_auth_transform_key()
273 	ret = crypto_shash_setkey(key_tfm, key->key, key->len);  in nvme_auth_transform_key()
460 	struct nvme_dhchap_key *key;  in nvme_auth_generate_key()  local
472 	key = nvme_auth_extract_key(secret + 10, key_hash);  in nvme_auth_generate_key()
473 	if (IS_ERR(key)) {  in nvme_auth_generate_key()
475 		return PTR_ERR(key);  in nvme_auth_generate_key()
478 	*ret_key = key;  in nvme_auth_generate_key()