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crypto: api - Rebirth of crypto_alloc_tfm

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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 <[email protected]>
This commit is contained in:
Herbert Xu 2008-09-21 06:52:53 +09:00
commit 7b0bac64cd
4 changed files with 123 additions and 1 deletions
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2
crypto/internal.h
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@ -109,6 +109,8 @@ void crypto_alg_tested(const char *name, int err);
void crypto_shoot_alg(struct crypto_alg *alg);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
u32 mask);
struct crypto_tfm *crypto_create_tfm(struct crypto_alg *alg,
const struct crypto_type *frontend);
int crypto_register_instance(struct crypto_template *tmpl,
struct crypto_instance *inst);