diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2020-08-18 11:25:34 +0300 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-08-28 09:58:28 +0300 |
commit | e73d340db6448013ac219d105654d2b9868a8dd2 (patch) | |
tree | 2b14a7315bba9263ac5ff9f92528b86436318afb /include/crypto | |
parent | 6779d0e6b0fe193ab3010ea201782ca6f75a3862 (diff) | |
download | linux-e73d340db6448013ac219d105654d2b9868a8dd2.tar.xz |
crypto: ahash - Add init_tfm/exit_tfm
This patch adds the type-safe init_tfm/exit_tfm functions to the
ahash interface. This is meant to replace the unsafe cra_init and
cra_exit interface.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-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 0d1b403888c9..a2563a59fadd 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -123,6 +123,17 @@ 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 +146,8 @@ 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; }; |