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[CRYPTO] tcrypt: Use asynchronous hash interface

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This patch changes tcrypt to use the new asynchronous hash interface
for testing hash algorithm correctness.  The speed tests will continue
to use the existing interface for now.

Signed-off-by: Loc Ho <lho@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Loc Ho 2008-05-14 21:24:51 +08:00 committed by Herbert Xu
parent b8a28251c2
commit cde0e2c819
1 changed files with 57 additions and 19 deletions
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72
crypto/tcrypt.c
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@ -104,22 +104,30 @@ static void test_hash(char *algo, struct hash_testvec *template,
unsigned int i, j, k, temp; unsigned int i, j, k, temp;
struct scatterlist sg[8]; struct scatterlist sg[8];
char result[64]; char result[64];
struct crypto_hash *tfm; struct crypto_ahash *tfm;
struct hash_desc desc; struct ahash_request *req;
struct tcrypt_result tresult;
int ret; int ret;
void *hash_buff; void *hash_buff;
printk("\ntesting %s\n", algo); printk("\ntesting %s\n", algo);
tfm = crypto_alloc_hash(algo, 0, CRYPTO_ALG_ASYNC); init_completion(&tresult.completion);
tfm = crypto_alloc_ahash(algo, 0, 0);
if (IS_ERR(tfm)) { if (IS_ERR(tfm)) {
printk("failed to load transform for %s: %ld\n", algo, printk("failed to load transform for %s: %ld\n", algo,
PTR_ERR(tfm)); PTR_ERR(tfm));
return; return;
} }
desc.tfm = tfm; req = ahash_request_alloc(tfm, GFP_KERNEL);
desc.flags = 0; if (!req) {
printk(KERN_ERR "failed to allocate request for %s\n", algo);
goto out_noreq;
}
ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &tresult);
for (i = 0; i < tcount; i++) { for (i = 0; i < tcount; i++) {
printk("test %u:\n", i + 1); printk("test %u:\n", i + 1);
@ -133,7 +141,8 @@ static void test_hash(char *algo, struct hash_testvec *template,
sg_init_one(&sg[0], hash_buff, template[i].psize); sg_init_one(&sg[0], hash_buff, template[i].psize);
if (template[i].ksize) { if (template[i].ksize) {
ret = crypto_hash_setkey(tfm, template[i].key, crypto_ahash_clear_flags(tfm, ~0);
ret = crypto_ahash_setkey(tfm, template[i].key,
template[i].ksize); template[i].ksize);
if (ret) { if (ret) {
printk("setkey() failed ret=%d\n", ret); printk("setkey() failed ret=%d\n", ret);
@ -142,17 +151,30 @@ static void test_hash(char *algo, struct hash_testvec *template,
} }
} }
ret = crypto_hash_digest(&desc, sg, template[i].psize, result); ahash_request_set_crypt(req, sg, result, template[i].psize);
if (ret) { ret = crypto_ahash_digest(req);
switch (ret) {
case 0:
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&tresult.completion);
if (!ret && !(ret = tresult.err)) {
INIT_COMPLETION(tresult.completion);
break;
}
/* fall through */
default:
printk("digest () failed ret=%d\n", ret); printk("digest () failed ret=%d\n", ret);
kfree(hash_buff); kfree(hash_buff);
goto out; goto out;
} }
hexdump(result, crypto_hash_digestsize(tfm)); hexdump(result, crypto_ahash_digestsize(tfm));
printk("%s\n", printk("%s\n",
memcmp(result, template[i].digest, memcmp(result, template[i].digest,
crypto_hash_digestsize(tfm)) ? crypto_ahash_digestsize(tfm)) ?
"fail" : "pass"); "fail" : "pass");
kfree(hash_buff); kfree(hash_buff);
} }
@ -181,7 +203,8 @@ static void test_hash(char *algo, struct hash_testvec *template,
} }
if (template[i].ksize) { if (template[i].ksize) {
ret = crypto_hash_setkey(tfm, template[i].key, crypto_ahash_clear_flags(tfm, ~0);
ret = crypto_ahash_setkey(tfm, template[i].key,
template[i].ksize); template[i].ksize);
if (ret) { if (ret) {
@ -190,23 +213,38 @@ static void test_hash(char *algo, struct hash_testvec *template,
} }
} }
ret = crypto_hash_digest(&desc, sg, template[i].psize, ahash_request_set_crypt(req, sg, result,
result); template[i].psize);
if (ret) { ret = crypto_ahash_digest(req);
switch (ret) {
case 0:
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&tresult.completion);
if (!ret && !(ret = tresult.err)) {
INIT_COMPLETION(tresult.completion);
break;
}
/* fall through */
default:
printk("digest () failed ret=%d\n", ret); printk("digest () failed ret=%d\n", ret);
goto out; goto out;
} }
hexdump(result, crypto_hash_digestsize(tfm)); hexdump(result, crypto_ahash_digestsize(tfm));
printk("%s\n", printk("%s\n",
memcmp(result, template[i].digest, memcmp(result, template[i].digest,
crypto_hash_digestsize(tfm)) ? crypto_ahash_digestsize(tfm)) ?
"fail" : "pass"); "fail" : "pass");
} }
} }
out: out:
crypto_free_hash(tfm); ahash_request_free(req);
out_noreq:
crypto_free_ahash(tfm);
} }
static void test_aead(char *algo, int enc, struct aead_testvec *template, static void test_aead(char *algo, int enc, struct aead_testvec *template,