Commit 35d2c9d0 authored by Tim Chen's avatar Tim Chen Committed by Herbert Xu

crypto: sha256 - Expose SHA256 generic routine to be callable externally.

Other SHA256 routine may need to use the generic routine when
FPU is not available.
Signed-off-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 873b9caf
......@@ -246,7 +246,7 @@ static int sha256_init(struct shash_desc *desc)
return 0;
}
static int sha256_update(struct shash_desc *desc, const u8 *data,
int crypto_sha256_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
......@@ -277,6 +277,7 @@ static int sha256_update(struct shash_desc *desc, const u8 *data,
return 0;
}
EXPORT_SYMBOL(crypto_sha256_update);
static int sha256_final(struct shash_desc *desc, u8 *out)
{
......@@ -293,10 +294,10 @@ static int sha256_final(struct shash_desc *desc, u8 *out)
/* Pad out to 56 mod 64. */
index = sctx->count & 0x3f;
pad_len = (index < 56) ? (56 - index) : ((64+56) - index);
sha256_update(desc, padding, pad_len);
crypto_sha256_update(desc, padding, pad_len);
/* Append length (before padding) */
sha256_update(desc, (const u8 *)&bits, sizeof(bits));
crypto_sha256_update(desc, (const u8 *)&bits, sizeof(bits));
/* Store state in digest */
for (i = 0; i < 8; i++)
......@@ -339,7 +340,7 @@ static int sha256_import(struct shash_desc *desc, const void *in)
static struct shash_alg sha256_algs[2] = { {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_init,
.update = sha256_update,
.update = crypto_sha256_update,
.final = sha256_final,
.export = sha256_export,
.import = sha256_import,
......@@ -355,7 +356,7 @@ static struct shash_alg sha256_algs[2] = { {
}, {
.digestsize = SHA224_DIGEST_SIZE,
.init = sha224_init,
.update = sha256_update,
.update = crypto_sha256_update,
.final = sha224_final,
.descsize = sizeof(struct sha256_state),
.base = {
......
......@@ -87,4 +87,6 @@ struct shash_desc;
extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len);
extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data,
unsigned int len);
#endif
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