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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-06-13 17:37:55 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-06-21 14:44:31 +0800
commitda5ffe11342a0ecf2cce7000a9392c9ca959e9c8 (patch)
treed0586d9922dae9ce67b3e01a39974bd954adf549 /crypto
parent58dcf5484c0cbaddbba1d3ed074729f5078346bb (diff)
downloadlinux-linaro-stable-da5ffe11342a0ecf2cce7000a9392c9ca959e9c8.tar.gz
crypto: testmgr - test hash implementations with unaligned buffers
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>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/testmgr.c41
1 files changed, 39 insertions, 2 deletions
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index f20538616776..2f00607039e2 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -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)