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[CRYPTO] api: Get rid of flags argument to setkey

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Now that the tfm is passed directly to setkey instead of the ctx, we no
longer need to pass the &tfm->crt_flags pointer.

This patch also gets rid of a few unnecessary checks on the key length
for ciphers as the cipher layer guarantees that the key length is within
the bounds specified by the algorithm.

Rather than testing dia_setkey every time, this patch does it only once
during crypto_alloc_tfm.  The redundant check from crypto_digest_setkey
is also removed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2006-08-13 14:16:39 +10:00
parent 25cdbcd9e5
commit 560c06ae1a
24 changed files with 63 additions and 92 deletions
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15
crypto/digest.c
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@@ -76,12 +76,16 @@ static void final(struct crypto_tfm *tfm, u8 *out)
tfm->__crt_alg->cra_digest.dia_final(tfm, out);
}
static int nosetkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
return -ENOSYS;
}
static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
u32 flags;
if (tfm->__crt_alg->cra_digest.dia_setkey == NULL)
return -ENOSYS;
return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen, &flags);
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen);
}
static void digest(struct crypto_tfm *tfm,
@@ -100,12 +104,13 @@ int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags)
int crypto_init_digest_ops(struct crypto_tfm *tfm)
{
struct digest_tfm *ops = &tfm->crt_digest;
struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
ops->dit_init = init;
ops->dit_update = update;
ops->dit_final = final;
ops->dit_digest = digest;
ops->dit_setkey = setkey;
ops->dit_setkey = dalg->dia_setkey ? setkey : nosetkey;
return crypto_alloc_hmac_block(tfm);
}