From 7b0bac64cd5b74d6f1147524c26216de13a501fd Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 21 Sep 2008 06:52:53 +0900 Subject: crypto: api - Rebirth of crypto_alloc_tfm This patch reintroduces a completely revamped crypto_alloc_tfm. The biggest change is that we now take two crypto_type objects when allocating a tfm, a frontend and a backend. In fact this simply formalises what we've been doing behind the API's back. For example, as it stands crypto_alloc_ahash may use an actual ahash algorithm or a crypto_hash algorithm. Putting this in the API allows us to do this much more cleanly. The existing types will be converted across gradually. Signed-off-by: Herbert Xu --- include/crypto/algapi.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/crypto') diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 5fb6d8618d4..986db68548f 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -22,8 +22,18 @@ struct seq_file; struct crypto_type { unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask); + unsigned int (*extsize)(struct crypto_alg *alg, + const struct crypto_type *frontend); int (*init)(struct crypto_tfm *tfm, u32 type, u32 mask); + int (*init_tfm)(struct crypto_tfm *tfm, + const struct crypto_type *frontend); void (*show)(struct seq_file *m, struct crypto_alg *alg); + struct crypto_alg *(*lookup)(const char *name, u32 type, u32 mask); + + unsigned int type; + unsigned int maskclear; + unsigned int maskset; + unsigned int tfmsize; }; struct crypto_instance { -- cgit v1.2.3