diff options
Diffstat (limited to 'include/crypto/hash.h')
| -rw-r--r-- | include/crypto/hash.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h index 0d1b403888c9..af2ff31ff619 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -59,11 +59,6 @@ struct ahash_request { void *__ctx[] CRYPTO_MINALIGN_ATTR; }; -#define AHASH_REQUEST_ON_STACK(name, ahash) \ - char __##name##_desc[sizeof(struct ahash_request) + \ - crypto_ahash_reqsize(ahash)] CRYPTO_MINALIGN_ATTR; \ - struct ahash_request *name = (void *)__##name##_desc - /** * struct ahash_alg - asynchronous message digest definition * @init: **[mandatory]** Initialize the transformation context. Intended only to initialize the @@ -123,6 +118,17 @@ struct ahash_request { * data so the transformation can continue from this point onward. No * data processing happens at this point. Driver must not use * req->result. + * @init_tfm: Initialize the cryptographic transformation object. + * This function is called only once at the instantiation + * time, right after the transformation context was + * allocated. In case the cryptographic hardware has + * some special requirements which need to be handled + * by software, this function shall check for the precise + * requirement of the transformation and put any software + * fallbacks in place. + * @exit_tfm: Deinitialize the cryptographic transformation object. + * This is a counterpart to @init_tfm, used to remove + * various changes set in @init_tfm. * @halg: see struct hash_alg_common */ struct ahash_alg { @@ -135,6 +141,8 @@ struct ahash_alg { int (*import)(struct ahash_request *req, const void *in); int (*setkey)(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen); + int (*init_tfm)(struct crypto_ahash *tfm); + void (*exit_tfm)(struct crypto_ahash *tfm); struct hash_alg_common halg; }; |