crypto: testmgr - make test_aead also test 'dst != src' code paths
Currrently test_aead uses same buffer for destination and source. However
in any places, 'dst != src' take different path than 'dst == src' case.
Therefore make test_aead 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>
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 00f54d5..941d75c 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -358,8 +358,9 @@
return ret;
}
-static int test_aead(struct crypto_aead *tfm, int enc,
- struct aead_testvec *template, unsigned int tcount)
+static int __test_aead(struct crypto_aead *tfm, int enc,
+ struct aead_testvec *template, unsigned int tcount,
+ const bool diff_dst)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));
unsigned int i, j, k, n, temp;
@@ -367,15 +368,18 @@
char *q;
char *key;
struct aead_request *req;
- struct scatterlist sg[8];
- struct scatterlist asg[8];
- const char *e;
+ struct scatterlist *sg;
+ struct scatterlist *asg;
+ struct scatterlist *sgout;
+ const char *e, *d;
struct tcrypt_result result;
unsigned int authsize;
void *input;
+ void *output;
void *assoc;
char iv[MAX_IVLEN];
char *xbuf[XBUFSIZE];
+ char *xoutbuf[XBUFSIZE];
char *axbuf[XBUFSIZE];
if (testmgr_alloc_buf(xbuf))
@@ -383,6 +387,21 @@
if (testmgr_alloc_buf(axbuf))
goto out_noaxbuf;
+ if (diff_dst && testmgr_alloc_buf(xoutbuf))
+ goto out_nooutbuf;
+
+ /* avoid "the frame size is larger than 1024 bytes" compiler warning */
+ sg = kmalloc(sizeof(*sg) * 8 * (diff_dst ? 3 : 2), GFP_KERNEL);
+ if (!sg)
+ goto out_nosg;
+ asg = &sg[8];
+ sgout = &asg[8];
+
+ if (diff_dst)
+ d = "-ddst";
+ else
+ d = "";
+
if (enc == ENCRYPT)
e = "encryption";
else
@@ -392,8 +411,8 @@
req = aead_request_alloc(tfm, GFP_KERNEL);
if (!req) {
- printk(KERN_ERR "alg: aead: Failed to allocate request for "
- "%s\n", algo);
+ pr_err("alg: aead%s: Failed to allocate request for %s\n",
+ d, algo);
goto out;
}
@@ -432,9 +451,8 @@
ret = crypto_aead_setkey(tfm, key,
template[i].klen);
if (!ret == template[i].fail) {
- printk(KERN_ERR "alg: aead: setkey failed on "
- "test %d for %s: flags=%x\n", j, algo,
- crypto_aead_get_flags(tfm));
+ pr_err("alg: aead%s: setkey failed on test %d for %s: flags=%x\n",
+ d, j, algo, crypto_aead_get_flags(tfm));
goto out;
} else if (ret)
continue;
@@ -442,18 +460,26 @@
authsize = abs(template[i].rlen - template[i].ilen);
ret = crypto_aead_setauthsize(tfm, authsize);
if (ret) {
- printk(KERN_ERR "alg: aead: Failed to set "
- "authsize to %u on test %d for %s\n",
- authsize, j, algo);
+ pr_err("alg: aead%s: Failed to set authsize to %u on test %d for %s\n",
+ d, authsize, j, algo);
goto out;
}
sg_init_one(&sg[0], input,
template[i].ilen + (enc ? authsize : 0));
+ if (diff_dst) {
+ output = xoutbuf[0];
+ sg_init_one(&sgout[0], output,
+ template[i].ilen +
+ (enc ? authsize : 0));
+ } else {
+ output = input;
+ }
+
sg_init_one(&asg[0], assoc, template[i].alen);
- aead_request_set_crypt(req, sg, sg,
+ aead_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
template[i].ilen, iv);
aead_request_set_assoc(req, asg, template[i].alen);
@@ -466,10 +492,8 @@
case 0:
if (template[i].novrfy) {
/* verification was supposed to fail */
- printk(KERN_ERR "alg: aead: %s failed "
- "on test %d for %s: ret was 0, "
- "expected -EBADMSG\n",
- e, j, algo);
+ pr_err("alg: aead%s: %s failed on test %d for %s: ret was 0, expected -EBADMSG\n",
+ d, e, j, algo);
/* so really, we got a bad message */
ret = -EBADMSG;
goto out;
@@ -489,15 +513,15 @@
continue;
/* fall through */
default:
- printk(KERN_ERR "alg: aead: %s failed on test "
- "%d for %s: ret=%d\n", e, j, algo, -ret);
+ pr_err("alg: aead%s: %s failed on test %d for %s: ret=%d\n",
+ d, e, j, algo, -ret);
goto out;
}
- q = input;
+ q = output;
if (memcmp(q, template[i].result, template[i].rlen)) {
- printk(KERN_ERR "alg: aead: Test %d failed on "
- "%s for %s\n", j, e, algo);
+ pr_err("alg: aead%s: Test %d failed on %s for %s\n",
+ d, j, e, algo);
hexdump(q, template[i].rlen);
ret = -EINVAL;
goto out;
@@ -522,9 +546,8 @@
ret = crypto_aead_setkey(tfm, key, template[i].klen);
if (!ret == template[i].fail) {
- printk(KERN_ERR "alg: aead: setkey failed on "
- "chunk test %d for %s: flags=%x\n", j,
- algo, crypto_aead_get_flags(tfm));
+ pr_err("alg: aead%s: setkey failed on chunk test %d for %s: flags=%x\n",
+ d, j, algo, crypto_aead_get_flags(tfm));
goto out;
} else if (ret)
continue;
@@ -533,6 +556,8 @@
ret = -EINVAL;
sg_init_table(sg, template[i].np);
+ if (diff_dst)
+ sg_init_table(sgout, template[i].np);
for (k = 0, temp = 0; k < template[i].np; k++) {
if (WARN_ON(offset_in_page(IDX[k]) +
template[i].tap[k] > PAGE_SIZE))
@@ -551,14 +576,26 @@
q[n] = 0;
sg_set_buf(&sg[k], q, template[i].tap[k]);
+
+ if (diff_dst) {
+ q = xoutbuf[IDX[k] >> PAGE_SHIFT] +
+ offset_in_page(IDX[k]);
+
+ memset(q, 0, template[i].tap[k]);
+ if (offset_in_page(q) + n < PAGE_SIZE)
+ q[n] = 0;
+
+ sg_set_buf(&sgout[k], q,
+ template[i].tap[k]);
+ }
+
temp += template[i].tap[k];
}
ret = crypto_aead_setauthsize(tfm, authsize);
if (ret) {
- printk(KERN_ERR "alg: aead: Failed to set "
- "authsize to %u on chunk test %d for "
- "%s\n", authsize, j, algo);
+ pr_err("alg: aead%s: Failed to set authsize to %u on chunk test %d for %s\n",
+ d, authsize, j, algo);
goto out;
}
@@ -571,6 +608,9 @@
}
sg[k - 1].length += authsize;
+
+ if (diff_dst)
+ sgout[k - 1].length += authsize;
}
sg_init_table(asg, template[i].anp);
@@ -588,7 +628,7 @@
temp += template[i].atap[k];
}
- aead_request_set_crypt(req, sg, sg,
+ aead_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
template[i].ilen,
iv);
@@ -602,10 +642,8 @@
case 0:
if (template[i].novrfy) {
/* verification was supposed to fail */
- printk(KERN_ERR "alg: aead: %s failed "
- "on chunk test %d for %s: ret "
- "was 0, expected -EBADMSG\n",
- e, j, algo);
+ pr_err("alg: aead%s: %s failed on chunk test %d for %s: ret was 0, expected -EBADMSG\n",
+ d, e, j, algo);
/* so really, we got a bad message */
ret = -EBADMSG;
goto out;
@@ -625,32 +663,35 @@
continue;
/* fall through */
default:
- printk(KERN_ERR "alg: aead: %s failed on "
- "chunk test %d for %s: ret=%d\n", e, j,
- algo, -ret);
+ pr_err("alg: aead%s: %s failed on chunk test %d for %s: ret=%d\n",
+ d, e, j, algo, -ret);
goto out;
}
ret = -EINVAL;
for (k = 0, temp = 0; k < template[i].np; k++) {
- q = xbuf[IDX[k] >> PAGE_SHIFT] +
- offset_in_page(IDX[k]);
+ if (diff_dst)
+ q = xoutbuf[IDX[k] >> PAGE_SHIFT] +
+ offset_in_page(IDX[k]);
+ else
+ q = xbuf[IDX[k] >> PAGE_SHIFT] +
+ offset_in_page(IDX[k]);
n = template[i].tap[k];
if (k == template[i].np - 1)
n += enc ? authsize : -authsize;
if (memcmp(q, template[i].result + temp, n)) {
- printk(KERN_ERR "alg: aead: Chunk "
- "test %d failed on %s at page "
- "%u for %s\n", j, e, k, algo);
+ pr_err("alg: aead%s: Chunk test %d failed on %s at page %u for %s\n",
+ d, j, e, k, algo);
hexdump(q, n);
goto out;
}
q += n;
if (k == template[i].np - 1 && !enc) {
- if (memcmp(q, template[i].input +
+ if (!diff_dst &&
+ memcmp(q, template[i].input +
temp + n, authsize))
n = authsize;
else
@@ -661,11 +702,8 @@
;
}
if (n) {
- printk(KERN_ERR "alg: aead: Result "
- "buffer corruption in chunk "
- "test %d on %s at page %u for "
- "%s: %u bytes:\n", j, e, k,
- algo, n);
+ pr_err("alg: aead%s: Result buffer corruption in chunk test %d on %s at page %u for %s: %u bytes:\n",
+ d, j, e, k, algo, n);
hexdump(q, n);
goto out;
}
@@ -679,6 +717,11 @@
out:
aead_request_free(req);
+ kfree(sg);
+out_nosg:
+ if (diff_dst)
+ testmgr_free_buf(xoutbuf);
+out_nooutbuf:
testmgr_free_buf(axbuf);
out_noaxbuf:
testmgr_free_buf(xbuf);
@@ -686,6 +729,20 @@
return ret;
}
+static int test_aead(struct crypto_aead *tfm, int enc,
+ struct aead_testvec *template, unsigned int tcount)
+{
+ int ret;
+
+ /* test 'dst == src' case */
+ ret = __test_aead(tfm, enc, template, tcount, false);
+ if (ret)
+ return ret;
+
+ /* test 'dst != src' case */
+ return __test_aead(tfm, enc, template, tcount, true);
+}
+
static int test_cipher(struct crypto_cipher *tfm, int enc,
struct cipher_testvec *template, unsigned int tcount)
{