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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2013-06-13 17:37:45 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2013-06-21 14:44:30 +0800
commit3a338f20c3c5c33c45ab1c36c8eccd62289c6401 (patch)
tree77732d151a28f26022eaf5507eaa655817585e6a /crypto
parent5714758b5c23dcca8d29a43590397e58d245732f (diff)
downloadlinux-linaro-stable-3a338f20c3c5c33c45ab1c36c8eccd62289c6401.tar.gz
crypto: testmgr - test skciphers with unaligned buffers
This patch adds unaligned buffer tests for blkciphers. 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.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index a81c154e5d85..8bd185f068b6 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -820,7 +820,7 @@ out_nobuf:
static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
struct cipher_testvec *template, unsigned int tcount,
- const bool diff_dst)
+ const bool diff_dst, const int align_offset)
{
const char *algo =
crypto_tfm_alg_driver_name(crypto_ablkcipher_tfm(tfm));
@@ -876,10 +876,12 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
j++;
ret = -EINVAL;
- if (WARN_ON(template[i].ilen > PAGE_SIZE))
+ if (WARN_ON(align_offset + template[i].ilen >
+ PAGE_SIZE))
goto out;
data = xbuf[0];
+ data += align_offset;
memcpy(data, template[i].input, template[i].ilen);
crypto_ablkcipher_clear_flags(tfm, ~0);
@@ -900,6 +902,7 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
sg_init_one(&sg[0], data, template[i].ilen);
if (diff_dst) {
data = xoutbuf[0];
+ data += align_offset;
sg_init_one(&sgout[0], data, template[i].ilen);
}
@@ -941,6 +944,9 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
j = 0;
for (i = 0; i < tcount; i++) {
+ /* alignment tests are only done with continuous buffers */
+ if (align_offset != 0)
+ break;
if (template[i].iv)
memcpy(iv, template[i].iv, MAX_IVLEN);
@@ -1075,15 +1081,34 @@ out_nobuf:
static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
struct cipher_testvec *template, unsigned int tcount)
{
+ unsigned int alignmask;
int ret;
/* test 'dst == src' case */
- ret = __test_skcipher(tfm, enc, template, tcount, false);
+ ret = __test_skcipher(tfm, enc, template, tcount, false, 0);
if (ret)
return ret;
/* test 'dst != src' case */
- return __test_skcipher(tfm, enc, template, tcount, true);
+ ret = __test_skcipher(tfm, enc, template, tcount, true, 0);
+ if (ret)
+ return ret;
+
+ /* test unaligned buffers, check with one byte offset */
+ ret = __test_skcipher(tfm, enc, template, tcount, true, 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_skcipher(tfm, enc, template, tcount, true,
+ alignmask + 1);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
}
static int test_comp(struct crypto_comp *tfm, struct comp_testvec *ctemplate,