diff options
author | Eric Biggers <ebiggers@google.com> | 2020-01-02 19:58:49 -0800 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-01-09 11:30:54 +0800 |
commit | fdfad1fffc2aa199fb447c152a00a5e383a5b973 (patch) | |
tree | a6b00a71d2d09cbbd5171e6cbb942384022658de /include/crypto | |
parent | de95c9574108ec304083ed574304ab3b60b4167c (diff) |
crypto: shash - introduce crypto_grab_shash()
Currently, shash spawns are initialized by using shash_attr_alg() or
crypto_alg_mod_lookup() to look up the shash algorithm, then calling
crypto_init_shash_spawn().
This is different from how skcipher, aead, and akcipher spawns are
initialized (they use crypto_grab_*()), and for no good reason. This
difference introduces unnecessary complexity.
The crypto_grab_*() functions used to have some problems, like not
holding a reference to the algorithm and requiring the caller to
initialize spawn->base.inst. But those problems are fixed now.
So, let's introduce crypto_grab_shash() so that we can convert all
templates to the same way of initializing their spawns.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r-- | include/crypto/internal/hash.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h index 3b426b09bd32..4d1a0d8e4f3a 100644 --- a/include/crypto/internal/hash.h +++ b/include/crypto/internal/hash.h @@ -128,11 +128,21 @@ int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, struct shash_alg *alg, struct crypto_instance *inst); +int crypto_grab_shash(struct crypto_shash_spawn *spawn, + struct crypto_instance *inst, + const char *name, u32 type, u32 mask); + static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn) { crypto_drop_spawn(&spawn->base); } +static inline struct shash_alg *crypto_spawn_shash_alg( + struct crypto_shash_spawn *spawn) +{ + return __crypto_shash_alg(spawn->base.alg); +} + struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc); |