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authorHerbert Xu <herbert@gondor.apana.org.au>2016-01-11 21:26:50 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-01-18 18:16:12 +0800
commita1383cd86a062fc798899ab20f0ec2116cce39cb (patch)
tree711b5f639bccdbc457c5463ac209f0337dba82b8 /include/crypto
parent6de62f15b581f920ade22d758f4c338311c2f0d4 (diff)
crypto: skcipher - Add crypto_skcipher_has_setkey
This patch adds a way for skcipher users to determine whether a key is required by a 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/skcipher.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index d8dd41fb034f..fd8742a40ff3 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -61,6 +61,8 @@ struct crypto_skcipher {
unsigned int ivsize;
unsigned int reqsize;
+ bool has_setkey;
+
struct crypto_tfm base;
};
@@ -305,6 +307,11 @@ static inline int crypto_skcipher_setkey(struct crypto_skcipher *tfm,
return tfm->setkey(tfm, key, keylen);
}
+static inline bool crypto_skcipher_has_setkey(struct crypto_skcipher *tfm)
+{
+ return tfm->has_setkey;
+}
+
/**
* crypto_skcipher_reqtfm() - obtain cipher handle from request
* @req: skcipher_request out of which the cipher handle is to be obtained