diff options
| author | Hannes Reinecke <hare@suse.de> | 2022-06-27 11:51:57 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-07-06 18:14:23 +0200 |
| commit | 1bc60dc50469db7c02968196c0b8c4f93d4e06ee (patch) | |
| tree | c236ddc78512feee442115f3131b356d02f98825 | |
| parent | d109f3ccfc8f3fcdbd6f4c557a56d6237ca209d4 (diff) | |
crypto: add crypto_has_shash()
Add helper function to determine if a given synchronous hash is supported.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | crypto/shash.c | 6 | ||||
| -rw-r--r-- | include/crypto/hash.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 0a0a50cb694f..4c88e63b3350 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -521,6 +521,12 @@ struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type, } EXPORT_SYMBOL_GPL(crypto_alloc_shash); +int crypto_has_shash(const char *alg_name, u32 type, u32 mask) +{ + return crypto_type_has_alg(alg_name, &crypto_shash_type, type, mask); +} +EXPORT_SYMBOL_GPL(crypto_has_shash); + static int shash_prepare_alg(struct shash_alg *alg) { struct crypto_alg *base = &alg->base; diff --git a/include/crypto/hash.h b/include/crypto/hash.h index f140e4643949..f5841992dc9b 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -718,6 +718,8 @@ static inline void ahash_request_set_crypt(struct ahash_request *req, struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type, u32 mask); +int crypto_has_shash(const char *alg_name, u32 type, u32 mask); + static inline struct crypto_tfm *crypto_shash_tfm(struct crypto_shash *tfm) { return &tfm->base; |