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crypto: testmgr - test hash implementations with unaligned buffers

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This patch adds unaligned buffer tests for hashes.

The first new test is with one byte offset and the second test checks if
cra_alignmask for driver is big enough; for example, for testing a case
where cra_alignmask is set to 7, but driver really needs buffers to be
aligned to 16 bytes.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jussi Kivilinna 2013-06-13 17:37:55 +03:00 committed by Herbert Xu
parent 58dcf5484c
commit da5ffe1134
1 changed files with 39 additions and 2 deletions
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41
crypto/testmgr.c
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@ -184,8 +184,9 @@ static int do_one_async_hash_op(struct ahash_request *req,
return ret;
}
static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
unsigned int tcount, bool use_digest)
static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
unsigned int tcount, bool use_digest,
const int align_offset)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_ahash_tfm(tfm));
unsigned int i, j, k, temp;
@ -216,10 +217,15 @@ static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
if (template[i].np)
continue;
ret = -EINVAL;
if (WARN_ON(align_offset + template[i].psize > PAGE_SIZE))
goto out;
j++;
memset(result, 0, 64);
hash_buff = xbuf[0];
hash_buff += align_offset;
memcpy(hash_buff, template[i].plaintext, template[i].psize);
sg_init_one(&sg[0], hash_buff, template[i].psize);
@ -281,6 +287,10 @@ static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
j = 0;
for (i = 0; i < tcount; i++) {
/* alignment tests are only done with continuous buffers */
if (align_offset != 0)
break;
if (template[i].np) {
j++;
memset(result, 0, 64);
@ -358,6 +368,33 @@ out_nobuf:
return ret;
}
static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
unsigned int tcount, bool use_digest)
{
unsigned int alignmask;
int ret;
ret = __test_hash(tfm, template, tcount, use_digest, 0);
if (ret)
return ret;
/* test unaligned buffers, check with one byte offset */
ret = __test_hash(tfm, template, tcount, use_digest, 1);
if (ret)
return ret;
alignmask = crypto_tfm_alg_alignmask(&tfm->base);
if (alignmask) {
/* Check if alignment mask for tfm is correctly set. */
ret = __test_hash(tfm, template, tcount, use_digest,
alignmask + 1);
if (ret)
return ret;
}
return 0;
}
static int __test_aead(struct crypto_aead *tfm, int enc,
struct aead_testvec *template, unsigned int tcount,
const bool diff_dst, const int align_offset)