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[CRYPTO] api: Add type-safe spawns

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This patch allows spawns of specific types (e.g., cipher) to be allocated.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2006-12-17 10:05:58 +11:00
parent f1ddcaf339
commit 2e306ee016
8 changed files with 61 additions and 28 deletions
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20
include/crypto/algapi.h
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@@ -93,7 +93,8 @@ struct crypto_template *crypto_lookup_template(const char *name);
int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
struct crypto_instance *inst);
void crypto_drop_spawn(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn);
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
u32 mask);
struct crypto_alg *crypto_get_attr_alg(void *param, unsigned int len,
u32 type, u32 mask);
@@ -132,11 +133,28 @@ static inline void *crypto_blkcipher_ctx_aligned(struct crypto_blkcipher *tfm)
return crypto_tfm_ctx_aligned(&tfm->base);
}
static inline struct crypto_cipher *crypto_spawn_cipher(
struct crypto_spawn *spawn)
{
u32 type = CRYPTO_ALG_TYPE_CIPHER;
u32 mask = CRYPTO_ALG_TYPE_MASK;
return __crypto_cipher_cast(crypto_spawn_tfm(spawn, type, mask));
}
static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
{
return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
}
static inline struct crypto_hash *crypto_spawn_hash(struct crypto_spawn *spawn)
{
u32 type = CRYPTO_ALG_TYPE_HASH;
u32 mask = CRYPTO_ALG_TYPE_HASH_MASK;
return __crypto_hash_cast(crypto_spawn_tfm(spawn, type, mask));
}
static inline void *crypto_hash_ctx_aligned(struct crypto_hash *tfm)
{
return crypto_tfm_ctx_aligned(&tfm->base);