From 05b93b57b60b3461726019eeba7a45500b889573 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 11 Jan 2016 21:26:50 +0800 Subject: crypto: skcipher - Add crypto_skcipher_has_setkey commit a1383cd86a062fc798899ab20f0ec2116cce39cb upstream. This patch adds a way for skcipher users to determine whether a key is required by a transform. Signed-off-by: Herbert Xu [bwh: Backported to 3.2: add to ablkcipher API instead] Signed-off-by: Ben Hutchings Signed-off-by: Luis Henriques --- include/linux/crypto.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 2b00d92a6e6f..61dd0b15d21c 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -354,6 +354,7 @@ struct ablkcipher_tfm { unsigned int ivsize; unsigned int reqsize; + bool has_setkey; }; struct aead_tfm { @@ -664,6 +665,13 @@ static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm, return crt->setkey(crt->base, key, keylen); } +static inline bool crypto_ablkcipher_has_setkey(struct crypto_ablkcipher *tfm) +{ + struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm); + + return crt->has_setkey; +} + static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm( struct ablkcipher_request *req) { -- cgit v1.2.3