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authorHerbert Xu <herbert@gondor.apana.org.au>2016-01-08 21:28:26 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-17 12:31:03 -0800
commitf2e274ce8bfe8ab928ab1968a82a3b7eec27a69b (patch)
treea71591a4bc850ead2dc47f22037caff403c97cce /include/crypto
parenteeb2e2e72bce3c4f3e74d1ea2c621aa574b8ef18 (diff)
crypto: hash - Add crypto_ahash_has_setkey
commit a5596d6332787fd383b3b5427b41f94254430827 upstream. This patch adds a way for ahash users to determine whether a key is required by a crypto_ahash transform. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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