Hi:
Found this while playing with pcrypt.
commit 435578aeaad5859dda8657e3ed2c1a5bc1e524ec
Author: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Thu Jun 25 14:46:31 2009 +0800
crypto: skcipher - Fix request for sync algorithms
When a sync givcipher algorithm is requested, if an async version
of the same algorithm already exists, then we will loop forever
without ever constructing the sync version based on a blkcipher.
This is because we did not include the requested type/mask when
getting a larval for the geniv algorithm that is to be constructed.
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index e11ce37..43fc8fb 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -201,8 +201,9 @@ static int crypto_givcipher_default(struct crypto_alg *alg, u32 type, u32 mask)
int err;
larval = crypto_larval_lookup(alg->cra_driver_name,
+ (type & ~CRYPTO_ALG_TYPE_MASK) |
CRYPTO_ALG_TYPE_GIVCIPHER,
- CRYPTO_ALG_TYPE_MASK);
+ mask | CRYPTO_ALG_TYPE_MASK);
err = PTR_ERR(larval);
if (IS_ERR(larval))
goto out;
Cheers,
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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