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[CRYPTO] users: Use crypto_hash interface instead of crypto_digest

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This patch converts all remaining crypto_digest users to use the new
crypto_hash interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2006-08-24 19:10:20 +10:00
parent dc64ddf491
commit 3505868791
6 changed files with 97 additions and 69 deletions
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38
net/sunrpc/auth_gss/gss_krb5_crypto.c
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@ -34,6 +34,7 @@
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <linux/err.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/slab.h>
@ -199,11 +200,9 @@ out:
static int
checksummer(struct scatterlist *sg, void *data)
{
struct crypto_tfm *tfm = (struct crypto_tfm *)data;
struct hash_desc *desc = data;
crypto_digest_update(tfm, sg, 1);
return 0;
return crypto_hash_update(desc, sg, sg->length);
}
/* checksum the plaintext data and hdrlen bytes of the token header */
@ -212,8 +211,9 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
int body_offset, struct xdr_netobj *cksum)
{
char *cksumname;
struct crypto_tfm *tfm = NULL; /* XXX add to ctx? */
struct hash_desc desc; /* XXX add to ctx? */
struct scatterlist sg[1];
int err;
switch (cksumtype) {
case CKSUMTYPE_RSA_MD5:
@ -224,18 +224,28 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
" unsupported checksum %d", cksumtype);
return GSS_S_FAILURE;
}
if (!(tfm = crypto_alloc_tfm(cksumname, CRYPTO_TFM_REQ_MAY_SLEEP)))
desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(desc.tfm))
return GSS_S_FAILURE;
cksum->len = crypto_tfm_alg_digestsize(tfm);
cksum->len = crypto_hash_digestsize(desc.tfm);
desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
crypto_digest_init(tfm);
err = crypto_hash_init(&desc);
if (err)
goto out;
sg_set_buf(sg, header, hdrlen);
crypto_digest_update(tfm, sg, 1);
process_xdr_buf(body, body_offset, body->len - body_offset,
checksummer, tfm);
crypto_digest_final(tfm, cksum->data);
crypto_free_tfm(tfm);
return 0;
err = crypto_hash_update(&desc, sg, hdrlen);
if (err)
goto out;
err = process_xdr_buf(body, body_offset, body->len - body_offset,
checksummer, &desc);
if (err)
goto out;
err = crypto_hash_final(&desc, cksum->data);
out:
crypto_free_hash(desc.tfm);
return err ? GSS_S_FAILURE : 0;
}
EXPORT_SYMBOL(make_checksum);