diff options
| -rw-r--r-- | crypto/ahash.c | 6 | ||||
| -rw-r--r-- | include/crypto/hash.h | 12 |
2 files changed, 18 insertions, 0 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c index d19b52324cf5..8b08a59221a6 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -542,6 +542,12 @@ struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type, } EXPORT_SYMBOL_GPL(crypto_alloc_ahash); +int crypto_has_ahash(const char *alg_name, u32 type, u32 mask) +{ + return crypto_type_has_alg(alg_name, &crypto_ahash_type, type, mask); +} +EXPORT_SYMBOL_GPL(crypto_has_ahash); + static int ahash_prepare_alg(struct ahash_alg *alg) { struct crypto_alg *base = &alg->halg.base; diff --git a/include/crypto/hash.h b/include/crypto/hash.h index aef819247fe8..f855efaa2f8c 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -260,6 +260,18 @@ static inline void crypto_free_ahash(struct crypto_ahash *tfm) crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm)); } +/** + * crypto_has_ahash() - Search for the availability of an ahash. + * @alg_name: is the cra_name / name or cra_driver_name / driver name of the + * ahash + * @type: specifies the type of the ahash + * @mask: specifies the mask for the ahash + * + * Return: true when the ahash is known to the kernel crypto API; false + * otherwise + */ +int crypto_has_ahash(const char *alg_name, u32 type, u32 mask); + static inline unsigned int crypto_ahash_alignmask( struct crypto_ahash *tfm) { |