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author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-01 08:35:38 +0100 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-01-10 22:16:49 +0100 |
commit | 03bf712fb4defc7831c727d1e32d0269f7f96de0 (patch) | |
tree | 44a7c169b6988cbb86cbe93fc33692691a9f24a9 /include/crypto/skcipher.h | |
parent | [CRYPTO] seqiv: Add Sequence Number IV Generator (diff) | |
download | linux-03bf712fb4defc7831c727d1e32d0269f7f96de0.tar.xz linux-03bf712fb4defc7831c727d1e32d0269f7f96de0.zip |
[CRYPTO] skcipher: Add top-level givencrypt/givdecrypt calls
This patch finally makes the givencrypt/givdecrypt operations available
to users by adding crypto_skcipher_givencrypt and crypto_skcipher_givdecrypt.
A suite of helpers to allocate and fill in the request is also available.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
-rw-r--r-- | include/crypto/skcipher.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h index c283fab5eddb..25fd6126522d 100644 --- a/include/crypto/skcipher.h +++ b/include/crypto/skcipher.h @@ -14,6 +14,8 @@ #define _CRYPTO_SKCIPHER_H #include <linux/crypto.h> +#include <linux/kernel.h> +#include <linux/slab.h> /** * struct skcipher_givcrypt_request - Crypto request with IV generation @@ -34,5 +36,75 @@ static inline struct crypto_ablkcipher *skcipher_givcrypt_reqtfm( return crypto_ablkcipher_reqtfm(&req->creq); } +static inline int crypto_skcipher_givencrypt( + struct skcipher_givcrypt_request *req) +{ + struct ablkcipher_tfm *crt = + crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req)); + return crt->givencrypt(req); +}; + +static inline int crypto_skcipher_givdecrypt( + struct skcipher_givcrypt_request *req) +{ + struct ablkcipher_tfm *crt = + crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req)); + return crt->givdecrypt(req); +}; + +static inline void skcipher_givcrypt_set_tfm( + struct skcipher_givcrypt_request *req, struct crypto_ablkcipher *tfm) +{ + req->creq.base.tfm = crypto_ablkcipher_tfm(tfm); +} + +static inline struct skcipher_givcrypt_request *skcipher_givcrypt_cast( + struct crypto_async_request *req) +{ + return container_of(ablkcipher_request_cast(req), + struct skcipher_givcrypt_request, creq); +} + +static inline struct skcipher_givcrypt_request *skcipher_givcrypt_alloc( + struct crypto_ablkcipher *tfm, gfp_t gfp) +{ + struct skcipher_givcrypt_request *req; + + req = kmalloc(sizeof(struct skcipher_givcrypt_request) + + crypto_ablkcipher_reqsize(tfm), gfp); + + if (likely(req)) + skcipher_givcrypt_set_tfm(req, tfm); + + return req; +} + +static inline void skcipher_givcrypt_free(struct skcipher_givcrypt_request *req) +{ + kfree(req); +} + +static inline void skcipher_givcrypt_set_callback( + struct skcipher_givcrypt_request *req, u32 flags, + crypto_completion_t complete, void *data) +{ + ablkcipher_request_set_callback(&req->creq, flags, complete, data); +} + +static inline void skcipher_givcrypt_set_crypt( + struct skcipher_givcrypt_request *req, + struct scatterlist *src, struct scatterlist *dst, + unsigned int nbytes, void *iv) +{ + ablkcipher_request_set_crypt(&req->creq, src, dst, nbytes, iv); +} + +static inline void skcipher_givcrypt_set_giv( + struct skcipher_givcrypt_request *req, u8 *giv, u64 seq) +{ + req->giv = giv; + req->seq = seq; +} + #endif /* _CRYPTO_SKCIPHER_H */ |