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| author | Giovanni Cabiddu <giovanni.cabiddu@intel.com> | 2017-04-19 14:27:18 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-04-21 20:30:50 +0800 |
| commit | a9943a0ad19f4a23bb5c4217df0fb37feb7ac339 (patch) | |
| tree | 5cfeb0799e11fc111c0c85ba89ecbd14b16ac65f /crypto | |
| parent | 3ce5bc72eb88c02b23374c0e4f619ada27e47552 (diff) | |
| download | lwn-a9943a0ad19f4a23bb5c4217df0fb37feb7ac339.tar.gz lwn-a9943a0ad19f4a23bb5c4217df0fb37feb7ac339.zip | |
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.c | 29 |
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; } |