From 619a6ebd2547f3a8ec2fbc5245daaa1f2056eb32 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 8 Jul 2009 18:46:23 +0800 Subject: crypto: shash - Add shash_register_instance This patch adds shash_register_instance so that shash instances can be registered without bypassing the shash checks applied to normal algorithms. Signed-off-by: Herbert Xu --- crypto/shash.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'crypto/shash.c') diff --git a/crypto/shash.c b/crypto/shash.c index 21bcff6be5b0..3d242425d692 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -480,7 +480,7 @@ struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type, } EXPORT_SYMBOL_GPL(crypto_alloc_shash); -int crypto_register_shash(struct shash_alg *alg) +static int shash_prepare_alg(struct shash_alg *alg) { struct crypto_alg *base = &alg->base; @@ -491,6 +491,17 @@ int crypto_register_shash(struct shash_alg *alg) base->cra_type = &crypto_shash_type; base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK; base->cra_flags |= CRYPTO_ALG_TYPE_SHASH; + return 0; +} + +int crypto_register_shash(struct shash_alg *alg) +{ + struct crypto_alg *base = &alg->base; + int err; + + err = shash_prepare_alg(alg); + if (err) + return err; return crypto_register_alg(base); } @@ -502,6 +513,19 @@ int crypto_unregister_shash(struct shash_alg *alg) } EXPORT_SYMBOL_GPL(crypto_unregister_shash); +int shash_register_instance(struct crypto_template *tmpl, + struct shash_instance *inst) +{ + int err; + + err = shash_prepare_alg(&inst->alg); + if (err) + return err; + + return crypto_register_instance(tmpl, shash_crypto_instance(inst)); +} +EXPORT_SYMBOL_GPL(shash_register_instance); + void shash_free_instance(struct crypto_instance *inst) { crypto_drop_spawn(crypto_instance_ctx(inst)); -- cgit v1.2.3-59-g8ed1b