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authorGiovanni Cabiddu <giovanni.cabiddu@intel.com>2017-04-19 14:27:18 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2017-04-21 20:30:50 +0800
commita9943a0ad19f4a23bb5c4217df0fb37feb7ac339 (patch)
tree5cfeb0799e11fc111c0c85ba89ecbd14b16ac65f /crypto
parent3ce5bc72eb88c02b23374c0e4f619ada27e47552 (diff)
crypto: testmgr - replace compression known answer test
Compression implementations might return valid outputs that do not match what specified in the test vectors. For this reason, the testmgr might report that a compression implementation failed the test even if the data produced by the compressor is correct. This implements a decompress-and-verify test for acomp compression tests rather than a known answer test. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/testmgr.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index cd075c7d8ee1..8373c727752a 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1458,7 +1458,7 @@ static int test_acomp(struct crypto_acomp *tfm,
{
const char *algo = crypto_tfm_alg_driver_name(crypto_acomp_tfm(tfm));
unsigned int i;
- char *output;
+ char *output, *decomp_out;
int ret;
struct scatterlist src, dst;
struct acomp_req *req;
@@ -1468,6 +1468,12 @@ static int test_acomp(struct crypto_acomp *tfm,
if (!output)
return -ENOMEM;
+ decomp_out = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
+ if (!decomp_out) {
+ kfree(output);
+ return -ENOMEM;
+ }
+
for (i = 0; i < ctcount; i++) {
unsigned int dlen = COMP_BUF_SIZE;
int ilen = ctemplate[i].inlen;
@@ -1506,7 +1512,23 @@ static int test_acomp(struct crypto_acomp *tfm,
goto out;
}
- if (req->dlen != ctemplate[i].outlen) {
+ ilen = req->dlen;
+ dlen = COMP_BUF_SIZE;
+ sg_init_one(&src, output, ilen);
+ sg_init_one(&dst, decomp_out, dlen);
+ init_completion(&result.completion);
+ acomp_request_set_params(req, &src, &dst, ilen, dlen);
+
+ ret = wait_async_op(&result, crypto_acomp_decompress(req));
+ if (ret) {
+ pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
+ i + 1, algo, -ret);
+ kfree(input_vec);
+ acomp_request_free(req);
+ goto out;
+ }
+
+ if (req->dlen != ctemplate[i].inlen) {
pr_err("alg: acomp: Compression test %d failed for %s: output len = %d\n",
i + 1, algo, req->dlen);
ret = -EINVAL;
@@ -1515,7 +1537,7 @@ static int test_acomp(struct crypto_acomp *tfm,
goto out;
}
- if (memcmp(output, ctemplate[i].output, req->dlen)) {
+ if (memcmp(input_vec, decomp_out, req->dlen)) {
pr_err("alg: acomp: Compression test %d failed for %s\n",
i + 1, algo);
hexdump(output, req->dlen);
@@ -1593,6 +1615,7 @@ static int test_acomp(struct crypto_acomp *tfm,
ret = 0;
out:
+ kfree(decomp_out);
kfree(output);
return ret;
}

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