[PATCH 01/12] crypto: add crypto_has_shash()
From: Hannes Reinecke <hare@suse.de>
Date: 2021-09-10 06:44:55
Also in:
linux-crypto
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
Add helper function to determine if a given synchronous hash is supported. Signed-off-by: Hannes Reinecke <hare@suse.de> --- crypto/shash.c | 6 ++++++ include/crypto/hash.h | 2 ++ 2 files changed, 8 insertions(+)
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;
--
2.29.2
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