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| author |   Herbert Xu <herbert@gondor.apana.org.au> | 2007-04-16 20:48:54 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2007-05-02 14:38:31 +1000 |
| commit | b5b7f08869340aa8cfa23303f7d195f161479592 (patch) | |
| tree | dd1f3f00165e7ca31e29a52d64909439cdfab8fd /include/linux/crypto.h | |
| parent | [CRYPTO] templates: Pass type/mask when creating instances (diff) | |
| download | linux-dev-b5b7f08869340aa8cfa23303f7d195f161479592.tar.xz linux-dev-b5b7f08869340aa8cfa23303f7d195f161479592.zip | |
[CRYPTO] api: Add async blkcipher type
This patch adds the mid-level interface for asynchronous block ciphers.
It also includes a generic queueing mechanism that can be used by other
asynchronous crypto operations in future.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/crypto.h')
| -rw-r--r-- | include/linux/crypto.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 67830e7c2c31..0ec2467891db 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -93,6 +93,7 @@ struct crypto_ablkcipher; struct crypto_async_request; struct crypto_blkcipher; struct crypto_hash; +struct crypto_queue; struct crypto_tfm; struct crypto_type; @@ -143,6 +144,19 @@ struct hash_desc { * Algorithms: modular crypto algorithm implementations, managed * via crypto_register_alg() and crypto_unregister_alg(). */ +struct ablkcipher_alg { + int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key, + unsigned int keylen); + int (*encrypt)(struct ablkcipher_request *req); + int (*decrypt)(struct ablkcipher_request *req); + + struct crypto_queue *queue; + + unsigned int min_keysize; + unsigned int max_keysize; + unsigned int ivsize; +}; + struct blkcipher_alg { int (*setkey)(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); @@ -197,6 +211,7 @@ struct compress_alg { unsigned int slen, u8 *dst, unsigned int *dlen); }; +#define cra_ablkcipher cra_u.ablkcipher #define cra_blkcipher cra_u.blkcipher #define cra_cipher cra_u.cipher #define cra_digest cra_u.digest @@ -221,6 +236,7 @@ struct crypto_alg { const struct crypto_type *cra_type; union { + struct ablkcipher_alg ablkcipher; struct blkcipher_alg blkcipher; struct cipher_alg cipher; struct digest_alg digest; @@ -572,6 +588,12 @@ static inline int crypto_ablkcipher_reqsize(struct crypto_ablkcipher *tfm) return crypto_ablkcipher_crt(tfm)->reqsize; } +static inline struct ablkcipher_request *ablkcipher_request_cast( + struct crypto_async_request *req) +{ + return container_of(req, struct ablkcipher_request, base); +} + static inline struct ablkcipher_request *ablkcipher_request_alloc( struct crypto_ablkcipher *tfm, gfp_t gfp) { |