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Commit 94296999 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: shash - Add spawn support



This patch adds the functions needed to create and use shash
spawns, i.e., to use shash algorithms in a template.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 97eedce1
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+9 −0
Original line number Original line Diff line number Diff line
@@ -509,5 +509,14 @@ void shash_free_instance(struct crypto_instance *inst)
}
}
EXPORT_SYMBOL_GPL(shash_free_instance);
EXPORT_SYMBOL_GPL(shash_free_instance);


int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
			    struct shash_alg *alg,
			    struct crypto_instance *inst)
{
	return crypto_init_spawn2(&spawn->base, &alg->base, inst,
				  &crypto_shash_type);
}
EXPORT_SYMBOL_GPL(crypto_init_shash_spawn);

MODULE_LICENSE("GPL");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");
+14 −0
Original line number Original line Diff line number Diff line
@@ -38,6 +38,10 @@ struct shash_instance {
	struct shash_alg alg;
	struct shash_alg alg;
};
};


struct crypto_shash_spawn {
	struct crypto_spawn base;
};

extern const struct crypto_type crypto_ahash_type;
extern const struct crypto_type crypto_ahash_type;


int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
@@ -52,6 +56,10 @@ int crypto_unregister_shash(struct shash_alg *alg);


void shash_free_instance(struct crypto_instance *inst);
void shash_free_instance(struct crypto_instance *inst);


int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
			    struct shash_alg *alg,
			    struct crypto_instance *inst);

static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
{
{
	return crypto_tfm_ctx(&tfm->base);
	return crypto_tfm_ctx(&tfm->base);
@@ -106,5 +114,11 @@ static inline struct shash_instance *shash_alloc_instance(
				      sizeof(struct shash_alg) - sizeof(*alg));
				      sizeof(struct shash_alg) - sizeof(*alg));
}
}


static inline struct crypto_shash *crypto_spawn_shash(
	struct crypto_shash_spawn *spawn)
{
	return crypto_spawn_tfm2(&spawn->base);
}

#endif	/* _CRYPTO_INTERNAL_HASH_H */
#endif	/* _CRYPTO_INTERNAL_HASH_H */