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authorHerbert Xu <herbert@gondor.apana.org.au>2023-04-13 09:24:19 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2023-04-20 13:20:04 +0300
commited3630b83e9394acef27041de7a2223f1e875e9a (patch)
tree9f18ad66b747c4a5a9698a61444f2509eefd1756 /crypto/hash.h
parent3c3a24cb0ae46c9c45e4ce2272f84f0504831f59 (diff)
downloadlinux-ed3630b83e9394acef27041de7a2223f1e875e9a.tar.xz
crypto: hash - Add crypto_clone_ahash/shash
This patch adds the helpers crypto_clone_ahash and crypto_clone_shash. They are the hash-specific counterparts of crypto_clone_tfm. This allows code paths that cannot otherwise allocate a hash tfm object to do so. Once a new tfm has been obtained its key could then be changed without impacting other users. Note that only algorithms that implement clone_tfm can be cloned. However, all keyless hashes can be cloned by simply reusing the tfm object. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/hash.h')
-rw-r--r--crypto/hash.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/hash.h b/crypto/hash.h
index 57b28a986d69..7e6c1a948692 100644
--- a/crypto/hash.h
+++ b/crypto/hash.h
@@ -31,6 +31,10 @@ static inline int crypto_hash_report_stat(struct sk_buff *skb,
return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash);
}
+int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
+struct crypto_ahash *crypto_clone_shash_ops_async(struct crypto_ahash *nhash,
+ struct crypto_ahash *hash);
+
int hash_prepare_alg(struct hash_alg_common *alg);
#endif /* _LOCAL_CRYPTO_HASH_H */