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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2016-01-23 13:52:40 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-01-25 22:42:13 +0800 |
| commit | 8d18e34c1fe22418ae0b5475ab0d1956d69ad195 (patch) | |
| tree | 805ed0cdc260466e4e58f5037e4d2c275650ef33 | |
| parent | f2aefdab5dff83d3c801449051be1ba72c7e933a (diff) | |
crypto: hash - Add crypto_has_ahash helper
This patch adds the helper crypto_has_ahash which should replace
crypto_has_hash.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -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) { |