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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-08 17:21:37 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2009-07-08 18:58:29 +0800 |
| commit | 942969992d86330c9700e2cd9afe8a6bea42df78 (patch) | |
| tree | 4183f307974076a606c97bf5b5c333aa4021562b | |
| parent | 97eedce1a64a57648ac5e39f03825528c47ba72e (diff) | |
| download | lwn-942969992d86330c9700e2cd9afe8a6bea42df78.tar.gz lwn-942969992d86330c9700e2cd9afe8a6bea42df78.zip | |
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: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/shash.c | 9 | ||||
| -rw-r--r-- | include/crypto/internal/hash.h | 14 |
2 files changed, 23 insertions, 0 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 8f9d8831e293..97f6c8ba103a 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -509,5 +509,14 @@ void shash_free_instance(struct crypto_instance *inst) } 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_DESCRIPTION("Synchronous cryptographic hash type"); diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h index 44d3bcdce6e2..6cc824b79331 100644 --- a/include/crypto/internal/hash.h +++ b/include/crypto/internal/hash.h @@ -38,6 +38,10 @@ struct shash_instance { struct shash_alg alg; }; +struct crypto_shash_spawn { + struct crypto_spawn base; +}; + extern const struct crypto_type crypto_ahash_type; 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); +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) { return crypto_tfm_ctx(&tfm->base); @@ -106,5 +114,11 @@ static inline struct shash_instance *shash_alloc_instance( 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 */ |