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crypto: testmgr - make test_skcipher also test 'dst != src' code paths
Currrently test_skcipher uses same buffer for destination and source. However in any places, 'dst != src' take different path than 'dst == src' case. Therefore make test_skcipher also run tests with destination buffer being different than source buffer. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jussi Kivilinna
Herbert Xu
parent
549595a0c7
commit
08d6af8c16
107
crypto/testmgr.c
107
crypto/testmgr.c
@ -761,8 +761,9 @@ out_nobuf:
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return ret;
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}
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static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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struct cipher_testvec *template, unsigned int tcount)
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static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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struct cipher_testvec *template, unsigned int tcount,
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const bool diff_dst)
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{
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const char *algo =
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crypto_tfm_alg_driver_name(crypto_ablkcipher_tfm(tfm));
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@ -770,16 +771,26 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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char *q;
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struct ablkcipher_request *req;
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struct scatterlist sg[8];
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const char *e;
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struct scatterlist sgout[8];
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const char *e, *d;
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struct tcrypt_result result;
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void *data;
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char iv[MAX_IVLEN];
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char *xbuf[XBUFSIZE];
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char *xoutbuf[XBUFSIZE];
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int ret = -ENOMEM;
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if (testmgr_alloc_buf(xbuf))
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goto out_nobuf;
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if (diff_dst && testmgr_alloc_buf(xoutbuf))
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goto out_nooutbuf;
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if (diff_dst)
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d = "-ddst";
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else
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d = "";
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if (enc == ENCRYPT)
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e = "encryption";
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else
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@ -789,8 +800,8 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
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if (!req) {
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printk(KERN_ERR "alg: skcipher: Failed to allocate request "
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"for %s\n", algo);
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pr_err("alg: skcipher%s: Failed to allocate request for %s\n",
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d, algo);
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goto out;
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}
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@ -822,16 +833,21 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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ret = crypto_ablkcipher_setkey(tfm, template[i].key,
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template[i].klen);
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if (!ret == template[i].fail) {
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printk(KERN_ERR "alg: skcipher: setkey failed "
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"on test %d for %s: flags=%x\n", j,
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algo, crypto_ablkcipher_get_flags(tfm));
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pr_err("alg: skcipher%s: setkey failed on test %d for %s: flags=%x\n",
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d, j, algo,
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crypto_ablkcipher_get_flags(tfm));
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goto out;
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} else if (ret)
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continue;
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sg_init_one(&sg[0], data, template[i].ilen);
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if (diff_dst) {
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data = xoutbuf[0];
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sg_init_one(&sgout[0], data, template[i].ilen);
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}
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ablkcipher_request_set_crypt(req, sg, sg,
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ablkcipher_request_set_crypt(req, sg,
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(diff_dst) ? sgout : sg,
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template[i].ilen, iv);
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ret = enc ?
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crypto_ablkcipher_encrypt(req) :
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@ -850,16 +866,15 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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}
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/* fall through */
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default:
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printk(KERN_ERR "alg: skcipher: %s failed on "
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"test %d for %s: ret=%d\n", e, j, algo,
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-ret);
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pr_err("alg: skcipher%s: %s failed on test %d for %s: ret=%d\n",
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d, e, j, algo, -ret);
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goto out;
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}
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q = data;
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if (memcmp(q, template[i].result, template[i].rlen)) {
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printk(KERN_ERR "alg: skcipher: Test %d "
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"failed on %s for %s\n", j, e, algo);
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pr_err("alg: skcipher%s: Test %d failed on %s for %s\n",
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d, j, e, algo);
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hexdump(q, template[i].rlen);
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ret = -EINVAL;
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goto out;
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@ -886,9 +901,8 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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ret = crypto_ablkcipher_setkey(tfm, template[i].key,
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template[i].klen);
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if (!ret == template[i].fail) {
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printk(KERN_ERR "alg: skcipher: setkey failed "
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"on chunk test %d for %s: flags=%x\n",
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j, algo,
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pr_err("alg: skcipher%s: setkey failed on chunk test %d for %s: flags=%x\n",
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d, j, algo,
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crypto_ablkcipher_get_flags(tfm));
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goto out;
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} else if (ret)
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@ -897,6 +911,8 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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temp = 0;
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ret = -EINVAL;
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sg_init_table(sg, template[i].np);
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if (diff_dst)
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sg_init_table(sgout, template[i].np);
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for (k = 0; k < template[i].np; k++) {
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if (WARN_ON(offset_in_page(IDX[k]) +
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template[i].tap[k] > PAGE_SIZE))
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@ -913,11 +929,24 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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q[template[i].tap[k]] = 0;
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sg_set_buf(&sg[k], q, template[i].tap[k]);
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if (diff_dst) {
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q = xoutbuf[IDX[k] >> PAGE_SHIFT] +
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offset_in_page(IDX[k]);
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sg_set_buf(&sgout[k], q,
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template[i].tap[k]);
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memset(q, 0, template[i].tap[k]);
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if (offset_in_page(q) +
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template[i].tap[k] < PAGE_SIZE)
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q[template[i].tap[k]] = 0;
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}
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temp += template[i].tap[k];
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}
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ablkcipher_request_set_crypt(req, sg, sg,
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ablkcipher_request_set_crypt(req, sg,
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(diff_dst) ? sgout : sg,
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template[i].ilen, iv);
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ret = enc ?
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@ -937,23 +966,25 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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}
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/* fall through */
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default:
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printk(KERN_ERR "alg: skcipher: %s failed on "
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"chunk test %d for %s: ret=%d\n", e, j,
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algo, -ret);
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pr_err("alg: skcipher%s: %s failed on chunk test %d for %s: ret=%d\n",
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d, e, j, algo, -ret);
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goto out;
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}
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temp = 0;
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ret = -EINVAL;
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for (k = 0; k < template[i].np; k++) {
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q = xbuf[IDX[k] >> PAGE_SHIFT] +
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offset_in_page(IDX[k]);
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if (diff_dst)
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q = xoutbuf[IDX[k] >> PAGE_SHIFT] +
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offset_in_page(IDX[k]);
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else
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q = xbuf[IDX[k] >> PAGE_SHIFT] +
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offset_in_page(IDX[k]);
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if (memcmp(q, template[i].result + temp,
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template[i].tap[k])) {
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printk(KERN_ERR "alg: skcipher: Chunk "
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"test %d failed on %s at page "
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"%u for %s\n", j, e, k, algo);
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pr_err("alg: skcipher%s: Chunk test %d failed on %s at page %u for %s\n",
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d, j, e, k, algo);
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hexdump(q, template[i].tap[k]);
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goto out;
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}
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@ -962,11 +993,8 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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for (n = 0; offset_in_page(q + n) && q[n]; n++)
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;
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if (n) {
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printk(KERN_ERR "alg: skcipher: "
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"Result buffer corruption in "
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"chunk test %d on %s at page "
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"%u for %s: %u bytes:\n", j, e,
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k, algo, n);
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pr_err("alg: skcipher%s: Result buffer corruption in chunk test %d on %s at page %u for %s: %u bytes:\n",
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d, j, e, k, algo, n);
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hexdump(q, n);
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goto out;
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}
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@ -979,11 +1007,28 @@ static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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out:
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ablkcipher_request_free(req);
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if (diff_dst)
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testmgr_free_buf(xoutbuf);
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out_nooutbuf:
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testmgr_free_buf(xbuf);
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out_nobuf:
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return ret;
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}
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static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
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struct cipher_testvec *template, unsigned int tcount)
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{
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int ret;
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/* test 'dst == src' case */
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ret = __test_skcipher(tfm, enc, template, tcount, false);
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if (ret)
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return ret;
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/* test 'dst != src' case */
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return __test_skcipher(tfm, enc, template, tcount, true);
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}
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static int test_comp(struct crypto_comp *tfm, struct comp_testvec *ctemplate,
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struct comp_testvec *dtemplate, int ctcount, int dtcount)
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{
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