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crypto: user - Fix lookup of algorithms with IV generator

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We lookup algorithms with crypto_alg_mod_lookup() when instantiating via
crypto_add_alg(). However, algorithms that are wrapped by an IV genearator
(e.g. aead or genicv type algorithms) need special care. The userspace
process hangs until it gets a timeout when we use crypto_alg_mod_lookup()
to lookup these algorithms. So export the lookup functions for these
algorithms and use them in crypto_add_alg().

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Steffen Klassert 2012-03-29 09:03:47 +02:00 • committed by Herbert Xu
parent fbf0ca1bf8
commit 1e12299400
5 changed files with 79 additions and 5 deletions
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4
crypto/ablkcipher.c
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@ -613,8 +613,7 @@ out:
return err;
}
static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type,
u32 mask)
struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask)
{
struct crypto_alg *alg;
@ -652,6 +651,7 @@ static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type,
return ERR_PTR(crypto_givcipher_default(alg, type, mask));
}
EXPORT_SYMBOL_GPL(crypto_lookup_skcipher);
int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
u32 type, u32 mask)