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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2008-09-21 06:52:53 +0900 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-12-25 11:01:24 +1100 |
| commit | 7b0bac64cd5b74d6f1147524c26216de13a501fd (patch) | |
| tree | e9163f47d583f88d35fb8e5c9ca86ed2581c6efd /include | |
| parent | 4a7794860ba2b56693b1d89fd485fd08cdc763e3 (diff) | |
| download | linux-7b0bac64cd5b74d6f1147524c26216de13a501fd.tar.gz | |
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 <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/algapi.h | 10 | ||||
| -rw-r--r-- | include/linux/crypto.h | 4 |
2 files changed, 13 insertions, 1 deletions
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 5fb6d8618d4d..986db68548f6 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 { diff --git a/include/linux/crypto.h b/include/linux/crypto.h index ea52cd944fd9..ffaaa418cf59 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -546,7 +546,9 @@ struct crypto_attr_u32 { * Transform user interface. */ -struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags); +struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, + const struct crypto_type *frontend, + u32 type, u32 mask); struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask); void crypto_free_tfm(struct crypto_tfm *tfm); |