crypto: testmgr - Add a test case for import()/export()
Modify __test_hash() so that hash import/export can be tested from within the kernel. The test is unconditionally done when a struct hash_testvec has its .np > 1. v3: make the test unconditional v2: Leverage template[i].np as suggested by Tim Chen Signed-off-by: Rui Wang <rui.y.wang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>hifive-unleashed-5.1
Wang, Rui Y
Herbert Xu
parent
1e0a6e1747
commit
018ba95c71
133
crypto/testmgr.c
133
crypto/testmgr.c
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@ -190,6 +190,61 @@ static int wait_async_op(struct tcrypt_result *tr, int ret)
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return ret;
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}
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static int ahash_partial_update(struct ahash_request **preq,
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struct crypto_ahash *tfm, struct hash_testvec *template,
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void *hash_buff, int k, int temp, struct scatterlist *sg,
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const char *algo, char *result, struct tcrypt_result *tresult)
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{
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char *state;
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struct ahash_request *req;
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int statesize, ret = -EINVAL;
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req = *preq;
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statesize = crypto_ahash_statesize(
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crypto_ahash_reqtfm(req));
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state = kmalloc(statesize, GFP_KERNEL);
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if (!state) {
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pr_err("alt: hash: Failed to alloc state for %s\n", algo);
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goto out_nostate;
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}
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ret = crypto_ahash_export(req, state);
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if (ret) {
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pr_err("alt: hash: Failed to export() for %s\n", algo);
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goto out;
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}
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ahash_request_free(req);
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req = ahash_request_alloc(tfm, GFP_KERNEL);
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if (!req) {
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pr_err("alg: hash: Failed to alloc request for %s\n", algo);
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goto out_noreq;
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}
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ahash_request_set_callback(req,
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CRYPTO_TFM_REQ_MAY_BACKLOG,
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tcrypt_complete, tresult);
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memcpy(hash_buff, template->plaintext + temp,
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template->tap[k]);
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sg_init_one(&sg[0], hash_buff, template->tap[k]);
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ahash_request_set_crypt(req, sg, result, template->tap[k]);
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ret = crypto_ahash_import(req, state);
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if (ret) {
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pr_err("alg: hash: Failed to import() for %s\n", algo);
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goto out;
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}
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ret = wait_async_op(tresult, crypto_ahash_update(req));
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if (ret)
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goto out;
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*preq = req;
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ret = 0;
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goto out_noreq;
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out:
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ahash_request_free(req);
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out_noreq:
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kfree(state);
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out_nostate:
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return ret;
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}
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static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
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unsigned int tcount, bool use_digest,
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const int align_offset)
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@ -377,6 +432,84 @@ static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
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}
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}
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/* partial update exercise */
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j = 0;
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for (i = 0; i < tcount; i++) {
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/* alignment tests are only done with continuous buffers */
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if (align_offset != 0)
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break;
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if (template[i].np < 2)
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continue;
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j++;
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memset(result, 0, MAX_DIGEST_SIZE);
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ret = -EINVAL;
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hash_buff = xbuf[0];
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memcpy(hash_buff, template[i].plaintext,
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template[i].tap[0]);
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sg_init_one(&sg[0], hash_buff, template[i].tap[0]);
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if (template[i].ksize) {
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crypto_ahash_clear_flags(tfm, ~0);
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if (template[i].ksize > MAX_KEYLEN) {
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pr_err("alg: hash: setkey failed on test %d for %s: key size %d > %d\n",
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j, algo, template[i].ksize, MAX_KEYLEN);
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ret = -EINVAL;
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goto out;
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}
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memcpy(key, template[i].key, template[i].ksize);
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ret = crypto_ahash_setkey(tfm, key, template[i].ksize);
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if (ret) {
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pr_err("alg: hash: setkey failed on test %d for %s: ret=%d\n",
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j, algo, -ret);
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goto out;
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}
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}
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ahash_request_set_crypt(req, sg, result, template[i].tap[0]);
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ret = wait_async_op(&tresult, crypto_ahash_init(req));
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if (ret) {
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pr_err("alt: hash: init failed on test %d for %s: ret=%d\n",
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j, algo, -ret);
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goto out;
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}
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ret = wait_async_op(&tresult, crypto_ahash_update(req));
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if (ret) {
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pr_err("alt: hash: update failed on test %d for %s: ret=%d\n",
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j, algo, -ret);
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goto out;
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}
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temp = template[i].tap[0];
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for (k = 1; k < template[i].np; k++) {
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ret = ahash_partial_update(&req, tfm, &template[i],
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hash_buff, k, temp, &sg[0], algo, result,
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&tresult);
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if (ret) {
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pr_err("hash: partial update failed on test %d for %s: ret=%d\n",
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j, algo, -ret);
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goto out_noreq;
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}
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temp += template[i].tap[k];
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}
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ret = wait_async_op(&tresult, crypto_ahash_final(req));
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if (ret) {
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pr_err("alt: hash: final failed on test %d for %s: ret=%d\n",
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j, algo, -ret);
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goto out;
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}
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if (memcmp(result, template[i].digest,
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crypto_ahash_digestsize(tfm))) {
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pr_err("alg: hash: Partial Test %d failed for %s\n",
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j, algo);
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hexdump(result, crypto_ahash_digestsize(tfm));
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ret = -EINVAL;
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goto out;
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}
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}
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ret = 0;
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out:
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