diff options
Diffstat (limited to 'include/crypto/hash.h')
| -rw-r--r-- | include/crypto/hash.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h index fe7f73bad1e2..cee446c59497 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -169,6 +169,17 @@ struct shash_desc { * @export: see struct ahash_alg * @import: see struct ahash_alg * @setkey: see struct ahash_alg + * @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. * @digestsize: see struct ahash_alg * @statesize: see struct ahash_alg * @descsize: Size of the operational state for the message digest. This state @@ -189,6 +200,8 @@ struct shash_alg { int (*import)(struct shash_desc *desc, const void *in); int (*setkey)(struct crypto_shash *tfm, const u8 *key, unsigned int keylen); + int (*init_tfm)(struct crypto_shash *tfm); + void (*exit_tfm)(struct crypto_shash *tfm); unsigned int descsize; |