+struct crypto_ahash;
+
+struct hash_alg_common {
+ unsigned int digestsize;
+ unsigned int statesize;
+
+ struct crypto_alg base;
+};
+
+struct ahash_request {
+ struct crypto_async_request base;
+
+ unsigned int nbytes;
+ struct scatterlist *src;
+ u8 *result;
+
+ /* This field may only be used by the ahash API code. */
+ void *priv;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct ahash_alg {
+ int (*init)(struct ahash_request *req);
+ int (*update)(struct ahash_request *req);
+ int (*final)(struct ahash_request *req);
+ int (*finup)(struct ahash_request *req);
+ int (*digest)(struct ahash_request *req);
+ int (*export)(struct ahash_request *req, void *out);
+ int (*import)(struct ahash_request *req, const void *in);
+ int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
+
+ struct hash_alg_common halg;
+};
+