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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2016-01-11 21:26:50 +0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-02-13 10:34:12 +0000 |
| commit | 3ba1945b048afd9cd8dba6b341160fffc4e431a0 (patch) | |
| tree | e9aa1d1427e66cbb8f576a7d0109d960b7aba76e /include | |
| parent | 5d4c935b8a1ea8bb0efed11b204de06f96fdb6b1 (diff) | |
| download | lwn-3ba1945b048afd9cd8dba6b341160fffc4e431a0.tar.gz lwn-3ba1945b048afd9cd8dba6b341160fffc4e431a0.zip | |
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 <herbert@gondor.apana.org.au>
[bwh: Backported to 3.2: add to ablkcipher API instead]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/crypto.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index ca01ea899114..6f501deccf41 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -346,6 +346,7 @@ struct ablkcipher_tfm { unsigned int ivsize; unsigned int reqsize; + bool has_setkey; }; struct aead_tfm { @@ -656,6 +657,13 @@ 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) { |