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testmgr.c
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testmgr.c
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/*
* Algorithm testing framework and tests.
*
* Copyright (c) 2002 James Morris <[email protected]>
* Copyright (c) 2002 Jean-Francois Dive <[email protected]>
* Copyright (c) 2007 Nokia Siemens Networks
* Copyright (c) 2008 Herbert Xu <[email protected]>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
*/
#include <crypto/hash.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <crypto/rng.h>
#include "internal.h"
#include "testmgr.h"
/*
* Need slab memory for testing (size in number of pages).
*/
#define XBUFSIZE 8
/*
* Indexes into the xbuf to simulate cross-page access.
*/
#define IDX1 32
#define IDX2 32400
#define IDX3 1
#define IDX4 8193
#define IDX5 22222
#define IDX6 17101
#define IDX7 27333
#define IDX8 3000
/*
* Used by test_cipher()
*/
#define ENCRYPT 1
#define DECRYPT 0
struct tcrypt_result {
struct completion completion;
int err;
};
struct aead_test_suite {
struct {
struct aead_testvec *vecs;
unsigned int count;
} enc, dec;
};
struct cipher_test_suite {
struct {
struct cipher_testvec *vecs;
unsigned int count;
} enc, dec;
};
struct comp_test_suite {
struct {
struct comp_testvec *vecs;
unsigned int count;
} comp, decomp;
};
struct pcomp_test_suite {
struct {
struct pcomp_testvec *vecs;
unsigned int count;
} comp, decomp;
};
struct hash_test_suite {
struct hash_testvec *vecs;
unsigned int count;
};
struct cprng_test_suite {
struct cprng_testvec *vecs;
unsigned int count;
};
struct alg_test_desc {
const char *alg;
int (*test)(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask);
int fips_allowed; /* set if alg is allowed in fips mode */
union {
struct aead_test_suite aead;
struct cipher_test_suite cipher;
struct comp_test_suite comp;
struct pcomp_test_suite pcomp;
struct hash_test_suite hash;
struct cprng_test_suite cprng;
} suite;
};
static unsigned int IDX[8] = { IDX1, IDX2, IDX3, IDX4, IDX5, IDX6, IDX7, IDX8 };
static void hexdump(unsigned char *buf, unsigned int len)
{
print_hex_dump(KERN_CONT, "", DUMP_PREFIX_OFFSET,
16, 1,
buf, len, false);
}
static void tcrypt_complete(struct crypto_async_request *req, int err)
{
struct tcrypt_result *res = req->data;
if (err == -EINPROGRESS)
return;
res->err = err;
complete(&res->completion);
}
static int testmgr_alloc_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++) {
buf[i] = (void *)__get_free_page(GFP_KERNEL);
if (!buf[i])
goto err_free_buf;
}
return 0;
err_free_buf:
while (i-- > 0)
free_page((unsigned long)buf[i]);
return -ENOMEM;
}
static void testmgr_free_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++)
free_page((unsigned long)buf[i]);
}
static int test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
unsigned int tcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_ahash_tfm(tfm));
unsigned int i, j, k, temp;
struct scatterlist sg[8];
char result[64];
struct ahash_request *req;
struct tcrypt_result tresult;
void *hash_buff;
char *xbuf[XBUFSIZE];
int ret = -ENOMEM;
if (testmgr_alloc_buf(xbuf))
goto out_nobuf;
init_completion(&tresult.completion);
req = ahash_request_alloc(tfm, GFP_KERNEL);
if (!req) {
printk(KERN_ERR "alg: hash: Failed to allocate request for "
"%s\n", algo);
goto out_noreq;
}
ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &tresult);
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].np)
continue;
j++;
memset(result, 0, 64);
hash_buff = xbuf[0];
memcpy(hash_buff, template[i].plaintext, template[i].psize);
sg_init_one(&sg[0], hash_buff, template[i].psize);
if (template[i].ksize) {
crypto_ahash_clear_flags(tfm, ~0);
ret = crypto_ahash_setkey(tfm, template[i].key,
template[i].ksize);
if (ret) {
printk(KERN_ERR "alg: hash: setkey failed on "
"test %d for %s: ret=%d\n", j, algo,
-ret);
goto out;
}
}
ahash_request_set_crypt(req, sg, result, template[i].psize);
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(KERN_ERR "alg: hash: digest failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
if (memcmp(result, template[i].digest,
crypto_ahash_digestsize(tfm))) {
printk(KERN_ERR "alg: hash: Test %d failed for %s\n",
j, algo);
hexdump(result, crypto_ahash_digestsize(tfm));
ret = -EINVAL;
goto out;
}
}
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].np) {
j++;
memset(result, 0, 64);
temp = 0;
sg_init_table(sg, template[i].np);
ret = -EINVAL;
for (k = 0; k < template[i].np; k++) {
if (WARN_ON(offset_in_page(IDX[k]) +
template[i].tap[k] > PAGE_SIZE))
goto out;
sg_set_buf(&sg[k],
memcpy(xbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]),
template[i].plaintext + temp,
template[i].tap[k]),
template[i].tap[k]);
temp += template[i].tap[k];
}
if (template[i].ksize) {
crypto_ahash_clear_flags(tfm, ~0);
ret = crypto_ahash_setkey(tfm, template[i].key,
template[i].ksize);
if (ret) {
printk(KERN_ERR "alg: hash: setkey "
"failed on chunking test %d "
"for %s: ret=%d\n", j, algo,
-ret);
goto out;
}
}
ahash_request_set_crypt(req, sg, result,
template[i].psize);
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(KERN_ERR "alg: hash: digest failed "
"on chunking test %d for %s: "
"ret=%d\n", j, algo, -ret);
goto out;
}
if (memcmp(result, template[i].digest,
crypto_ahash_digestsize(tfm))) {
printk(KERN_ERR "alg: hash: Chunking test %d "
"failed for %s\n", j, algo);
hexdump(result, crypto_ahash_digestsize(tfm));
ret = -EINVAL;
goto out;
}
}
}
ret = 0;
out:
ahash_request_free(req);
out_noreq:
testmgr_free_buf(xbuf);
out_nobuf:
return ret;
}
static int test_aead(struct crypto_aead *tfm, int enc,
struct aead_testvec *template, unsigned int tcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));
unsigned int i, j, k, n, temp;
int ret = -ENOMEM;
char *q;
char *key;
struct aead_request *req;
struct scatterlist sg[8];
struct scatterlist asg[8];
const char *e;
struct tcrypt_result result;
unsigned int authsize;
void *input;
void *assoc;
char iv[MAX_IVLEN];
char *xbuf[XBUFSIZE];
char *axbuf[XBUFSIZE];
if (testmgr_alloc_buf(xbuf))
goto out_noxbuf;
if (testmgr_alloc_buf(axbuf))
goto out_noaxbuf;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
init_completion(&result.completion);
req = aead_request_alloc(tfm, GFP_KERNEL);
if (!req) {
printk(KERN_ERR "alg: aead: Failed to allocate request for "
"%s\n", algo);
goto out;
}
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
for (i = 0, j = 0; i < tcount; i++) {
if (!template[i].np) {
j++;
/* some tepmplates have no input data but they will
* touch input
*/
input = xbuf[0];
assoc = axbuf[0];
ret = -EINVAL;
if (WARN_ON(template[i].ilen > PAGE_SIZE ||
template[i].alen > PAGE_SIZE))
goto out;
memcpy(input, template[i].input, template[i].ilen);
memcpy(assoc, template[i].assoc, template[i].alen);
if (template[i].iv)
memcpy(iv, template[i].iv, MAX_IVLEN);
else
memset(iv, 0, MAX_IVLEN);
crypto_aead_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_aead_set_flags(
tfm, CRYPTO_TFM_REQ_WEAK_KEY);
key = template[i].key;
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));
goto out;
} else if (ret)
continue;
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);
goto out;
}
sg_init_one(&sg[0], input,
template[i].ilen + (enc ? authsize : 0));
sg_init_one(&asg[0], assoc, template[i].alen);
aead_request_set_crypt(req, sg, sg,
template[i].ilen, iv);
aead_request_set_assoc(req, asg, template[i].alen);
ret = enc ?
crypto_aead_encrypt(req) :
crypto_aead_decrypt(req);
switch (ret) {
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);
/* so really, we got a bad message */
ret = -EBADMSG;
goto out;
}
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&result.completion);
if (!ret && !(ret = result.err)) {
INIT_COMPLETION(result.completion);
break;
}
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
continue;
/* fall through */
default:
printk(KERN_ERR "alg: aead: %s failed on test "
"%d for %s: ret=%d\n", e, j, algo, -ret);
goto out;
}
q = input;
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);
hexdump(q, template[i].rlen);
ret = -EINVAL;
goto out;
}
}
}
for (i = 0, j = 0; i < tcount; i++) {
if (template[i].np) {
j++;
if (template[i].iv)
memcpy(iv, template[i].iv, MAX_IVLEN);
else
memset(iv, 0, MAX_IVLEN);
crypto_aead_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_aead_set_flags(
tfm, CRYPTO_TFM_REQ_WEAK_KEY);
key = template[i].key;
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));
goto out;
} else if (ret)
continue;
authsize = abs(template[i].rlen - template[i].ilen);
ret = -EINVAL;
sg_init_table(sg, 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))
goto out;
q = xbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]);
memcpy(q, template[i].input + temp,
template[i].tap[k]);
n = template[i].tap[k];
if (k == template[i].np - 1 && enc)
n += authsize;
if (offset_in_page(q) + n < PAGE_SIZE)
q[n] = 0;
sg_set_buf(&sg[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);
goto out;
}
if (enc) {
if (WARN_ON(sg[k - 1].offset +
sg[k - 1].length + authsize >
PAGE_SIZE)) {
ret = -EINVAL;
goto out;
}
sg[k - 1].length += authsize;
}
sg_init_table(asg, template[i].anp);
ret = -EINVAL;
for (k = 0, temp = 0; k < template[i].anp; k++) {
if (WARN_ON(offset_in_page(IDX[k]) +
template[i].atap[k] > PAGE_SIZE))
goto out;
sg_set_buf(&asg[k],
memcpy(axbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]),
template[i].assoc + temp,
template[i].atap[k]),
template[i].atap[k]);
temp += template[i].atap[k];
}
aead_request_set_crypt(req, sg, sg,
template[i].ilen,
iv);
aead_request_set_assoc(req, asg, template[i].alen);
ret = enc ?
crypto_aead_encrypt(req) :
crypto_aead_decrypt(req);
switch (ret) {
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);
/* so really, we got a bad message */
ret = -EBADMSG;
goto out;
}
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&result.completion);
if (!ret && !(ret = result.err)) {
INIT_COMPLETION(result.completion);
break;
}
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
continue;
/* fall through */
default:
printk(KERN_ERR "alg: aead: %s failed on "
"chunk test %d for %s: ret=%d\n", 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]);
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);
hexdump(q, n);
goto out;
}
q += n;
if (k == template[i].np - 1 && !enc) {
if (memcmp(q, template[i].input +
temp + n, authsize))
n = authsize;
else
n = 0;
} else {
for (n = 0; offset_in_page(q + n) &&
q[n]; n++)
;
}
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);
hexdump(q, n);
goto out;
}
temp += template[i].tap[k];
}
}
}
ret = 0;
out:
aead_request_free(req);
testmgr_free_buf(axbuf);
out_noaxbuf:
testmgr_free_buf(xbuf);
out_noxbuf:
return ret;
}
static int test_cipher(struct crypto_cipher *tfm, int enc,
struct cipher_testvec *template, unsigned int tcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_cipher_tfm(tfm));
unsigned int i, j, k;
char *q;
const char *e;
void *data;
char *xbuf[XBUFSIZE];
int ret = -ENOMEM;
if (testmgr_alloc_buf(xbuf))
goto out_nobuf;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].np)
continue;
j++;
ret = -EINVAL;
if (WARN_ON(template[i].ilen > PAGE_SIZE))
goto out;
data = xbuf[0];
memcpy(data, template[i].input, template[i].ilen);
crypto_cipher_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_cipher_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
ret = crypto_cipher_setkey(tfm, template[i].key,
template[i].klen);
if (!ret == template[i].fail) {
printk(KERN_ERR "alg: cipher: setkey failed "
"on test %d for %s: flags=%x\n", j,
algo, crypto_cipher_get_flags(tfm));
goto out;
} else if (ret)
continue;
for (k = 0; k < template[i].ilen;
k += crypto_cipher_blocksize(tfm)) {
if (enc)
crypto_cipher_encrypt_one(tfm, data + k,
data + k);
else
crypto_cipher_decrypt_one(tfm, data + k,
data + k);
}
q = data;
if (memcmp(q, template[i].result, template[i].rlen)) {
printk(KERN_ERR "alg: cipher: Test %d failed "
"on %s for %s\n", j, e, algo);
hexdump(q, template[i].rlen);
ret = -EINVAL;
goto out;
}
}
ret = 0;
out:
testmgr_free_buf(xbuf);
out_nobuf:
return ret;
}
static int test_skcipher(struct crypto_ablkcipher *tfm, int enc,
struct cipher_testvec *template, unsigned int tcount)
{
const char *algo =
crypto_tfm_alg_driver_name(crypto_ablkcipher_tfm(tfm));
unsigned int i, j, k, n, temp;
char *q;
struct ablkcipher_request *req;
struct scatterlist sg[8];
const char *e;
struct tcrypt_result result;
void *data;
char iv[MAX_IVLEN];
char *xbuf[XBUFSIZE];
int ret = -ENOMEM;
if (testmgr_alloc_buf(xbuf))
goto out_nobuf;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
init_completion(&result.completion);
req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
if (!req) {
printk(KERN_ERR "alg: skcipher: Failed to allocate request "
"for %s\n", algo);
goto out;
}
ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &result);
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].iv)
memcpy(iv, template[i].iv, MAX_IVLEN);
else
memset(iv, 0, MAX_IVLEN);
if (!(template[i].np)) {
j++;
ret = -EINVAL;
if (WARN_ON(template[i].ilen > PAGE_SIZE))
goto out;
data = xbuf[0];
memcpy(data, template[i].input, template[i].ilen);
crypto_ablkcipher_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_ablkcipher_set_flags(
tfm, CRYPTO_TFM_REQ_WEAK_KEY);
ret = crypto_ablkcipher_setkey(tfm, template[i].key,
template[i].klen);
if (!ret == template[i].fail) {
printk(KERN_ERR "alg: skcipher: setkey failed "
"on test %d for %s: flags=%x\n", j,
algo, crypto_ablkcipher_get_flags(tfm));
goto out;
} else if (ret)
continue;
sg_init_one(&sg[0], data, template[i].ilen);
ablkcipher_request_set_crypt(req, sg, sg,
template[i].ilen, iv);
ret = enc ?
crypto_ablkcipher_encrypt(req) :
crypto_ablkcipher_decrypt(req);
switch (ret) {
case 0:
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&result.completion);
if (!ret && !((ret = result.err))) {
INIT_COMPLETION(result.completion);
break;
}
/* fall through */
default:
printk(KERN_ERR "alg: skcipher: %s failed on "
"test %d for %s: ret=%d\n", e, j, algo,
-ret);
goto out;
}
q = data;
if (memcmp(q, template[i].result, template[i].rlen)) {
printk(KERN_ERR "alg: skcipher: Test %d "
"failed on %s for %s\n", j, e, algo);
hexdump(q, template[i].rlen);
ret = -EINVAL;
goto out;
}
}
}
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].iv)
memcpy(iv, template[i].iv, MAX_IVLEN);
else
memset(iv, 0, MAX_IVLEN);
if (template[i].np) {
j++;
crypto_ablkcipher_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_ablkcipher_set_flags(
tfm, CRYPTO_TFM_REQ_WEAK_KEY);
ret = crypto_ablkcipher_setkey(tfm, template[i].key,
template[i].klen);
if (!ret == template[i].fail) {
printk(KERN_ERR "alg: skcipher: setkey failed "
"on chunk test %d for %s: flags=%x\n",
j, algo,
crypto_ablkcipher_get_flags(tfm));
goto out;
} else if (ret)
continue;
temp = 0;
ret = -EINVAL;
sg_init_table(sg, template[i].np);
for (k = 0; k < template[i].np; k++) {
if (WARN_ON(offset_in_page(IDX[k]) +
template[i].tap[k] > PAGE_SIZE))
goto out;
q = xbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]);
memcpy(q, template[i].input + temp,
template[i].tap[k]);
if (offset_in_page(q) + template[i].tap[k] <
PAGE_SIZE)
q[template[i].tap[k]] = 0;
sg_set_buf(&sg[k], q, template[i].tap[k]);
temp += template[i].tap[k];
}
ablkcipher_request_set_crypt(req, sg, sg,
template[i].ilen, iv);
ret = enc ?
crypto_ablkcipher_encrypt(req) :
crypto_ablkcipher_decrypt(req);
switch (ret) {
case 0:
break;
case -EINPROGRESS:
case -EBUSY:
ret = wait_for_completion_interruptible(
&result.completion);
if (!ret && !((ret = result.err))) {
INIT_COMPLETION(result.completion);
break;
}
/* fall through */
default:
printk(KERN_ERR "alg: skcipher: %s failed on "
"chunk test %d for %s: ret=%d\n", e, j,
algo, -ret);
goto out;
}
temp = 0;
ret = -EINVAL;
for (k = 0; k < template[i].np; k++) {
q = xbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]);
if (memcmp(q, template[i].result + temp,
template[i].tap[k])) {
printk(KERN_ERR "alg: skcipher: Chunk "
"test %d failed on %s at page "
"%u for %s\n", j, e, k, algo);
hexdump(q, template[i].tap[k]);
goto out;
}
q += template[i].tap[k];
for (n = 0; offset_in_page(q + n) && q[n]; n++)
;
if (n) {
printk(KERN_ERR "alg: skcipher: "
"Result buffer corruption in "
"chunk test %d on %s at page "
"%u for %s: %u bytes:\n", j, e,
k, algo, n);
hexdump(q, n);
goto out;
}
temp += template[i].tap[k];
}
}
}
ret = 0;
out:
ablkcipher_request_free(req);
testmgr_free_buf(xbuf);
out_nobuf:
return ret;
}
static int test_comp(struct crypto_comp *tfm, struct comp_testvec *ctemplate,
struct comp_testvec *dtemplate, int ctcount, int dtcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_comp_tfm(tfm));
unsigned int i;
char result[COMP_BUF_SIZE];
int ret;
for (i = 0; i < ctcount; i++) {
int ilen;
unsigned int dlen = COMP_BUF_SIZE;
memset(result, 0, sizeof (result));
ilen = ctemplate[i].inlen;
ret = crypto_comp_compress(tfm, ctemplate[i].input,
ilen, result, &dlen);
if (ret) {
printk(KERN_ERR "alg: comp: compression failed "
"on test %d for %s: ret=%d\n", i + 1, algo,
-ret);
goto out;
}
if (dlen != ctemplate[i].outlen) {
printk(KERN_ERR "alg: comp: Compression test %d "
"failed for %s: output len = %d\n", i + 1, algo,
dlen);
ret = -EINVAL;
goto out;
}
if (memcmp(result, ctemplate[i].output, dlen)) {
printk(KERN_ERR "alg: comp: Compression test %d "
"failed for %s\n", i + 1, algo);
hexdump(result, dlen);
ret = -EINVAL;
goto out;
}
}
for (i = 0; i < dtcount; i++) {
int ilen;
unsigned int dlen = COMP_BUF_SIZE;
memset(result, 0, sizeof (result));
ilen = dtemplate[i].inlen;
ret = crypto_comp_decompress(tfm, dtemplate[i].input,
ilen, result, &dlen);
if (ret) {
printk(KERN_ERR "alg: comp: decompression failed "
"on test %d for %s: ret=%d\n", i + 1, algo,
-ret);
goto out;
}
if (dlen != dtemplate[i].outlen) {