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authorHerbert Xu <herbert@gondor.apana.org.au>2016-01-08 21:28:26 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-01-18 18:16:11 +0800
commita5596d6332787fd383b3b5427b41f94254430827 (patch)
treea618523b21b98d08e5afd40782ea4d12924f9952 /include/crypto
parenta0fa2d037129a9849918a92d91b79ed6c7bd2818 (diff)
crypto: hash - Add crypto_ahash_has_setkey
This patch adds a way for ahash users to determine whether a key is required by a crypto_ahash transform. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/hash.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 3d69c93d50e8..6361892ea737 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -204,6 +204,7 @@ struct crypto_ahash {
unsigned int keylen);
unsigned int reqsize;
+ bool has_setkey;
struct crypto_tfm base;
};
@@ -375,6 +376,11 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen);
+static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm)
+{
+ return tfm->has_setkey;
+}
+
/**
* crypto_ahash_finup() - update and finalize message digest
* @req: reference to the ahash_request handle that holds all information