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crypto: cryptd - Use nivcipher in cryptd_alloc_ablkcipher

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Use crypto_alloc_base() instead of crypto_alloc_ablkcipher() to
allocate underlying tfm in cryptd_alloc_ablkcipher. Because
crypto_alloc_ablkcipher() prefer GENIV encapsulated crypto instead of
raw one, while cryptd_alloc_ablkcipher needed the raw one.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Huang Ying 2009-03-29 15:33:53 +08:00 committed by Herbert Xu
parent 811d8f0626
commit 505fd21d61
1 changed files with 9 additions and 5 deletions
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14
crypto/cryptd.c
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@ -586,20 +586,24 @@ struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
u32 type, u32 mask)
{
char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
struct crypto_ablkcipher *tfm;
struct crypto_tfm *tfm;
if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
"cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
return ERR_PTR(-EINVAL);
tfm = crypto_alloc_ablkcipher(cryptd_alg_name, type, mask);
type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
type |= CRYPTO_ALG_TYPE_BLKCIPHER;
mask &= ~CRYPTO_ALG_TYPE_MASK;
mask |= (CRYPTO_ALG_GENIV | CRYPTO_ALG_TYPE_BLKCIPHER_MASK);
tfm = crypto_alloc_base(cryptd_alg_name, type, mask);
if (IS_ERR(tfm))
return ERR_CAST(tfm);
if (crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_module != THIS_MODULE) {
crypto_free_ablkcipher(tfm);
if (tfm->__crt_alg->cra_module != THIS_MODULE) {
crypto_free_tfm(tfm);
return ERR_PTR(-EINVAL);
}
return __cryptd_ablkcipher_cast(tfm);
return __cryptd_ablkcipher_cast(__crypto_ablkcipher_cast(tfm));
}
EXPORT_SYMBOL_GPL(cryptd_alloc_ablkcipher);