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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]>
*
* Updated RFC4106 AES-GCM testing.
* Authors: Aidan O'Mahony ([email protected])
* Adrian Hoban <[email protected]>
* Gabriele Paoloni <[email protected]>
* Tadeusz Struk ([email protected])
* Copyright (c) 2010, Intel Corporation.
*
* 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/aead.h>
#include <crypto/hash.h>
#include <crypto/skcipher.h>
#include <linux/err.h>
#include <linux/fips.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <crypto/rng.h>
#include <crypto/drbg.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
#include <crypto/acompress.h>
#include "internal.h"
static bool notests;
module_param(notests, bool, 0644);
MODULE_PARM_DESC(notests, "disable crypto self-tests");
#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
/* a perfect nop */
int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
{
return 0;
}
#else
#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 1511
#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 aead_test_suite {
struct {
const struct aead_testvec *vecs;
unsigned int count;
} enc, dec;
};
struct cipher_test_suite {
const struct cipher_testvec *vecs;
unsigned int count;
};
struct comp_test_suite {
struct {
const struct comp_testvec *vecs;
unsigned int count;
} comp, decomp;
};
struct hash_test_suite {
const struct hash_testvec *vecs;
unsigned int count;
};
struct cprng_test_suite {
const struct cprng_testvec *vecs;
unsigned int count;
};
struct drbg_test_suite {
const struct drbg_testvec *vecs;
unsigned int count;
};
struct akcipher_test_suite {
const struct akcipher_testvec *vecs;
unsigned int count;
};
struct kpp_test_suite {
const struct kpp_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 hash_test_suite hash;
struct cprng_test_suite cprng;
struct drbg_test_suite drbg;
struct akcipher_test_suite akcipher;
struct kpp_test_suite kpp;
} suite;
};
static const 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 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 ahash_guard_result(char *result, char c, int size)
{
int i;
for (i = 0; i < size; i++) {
if (result[i] != c)
return -EINVAL;
}
return 0;
}
static int ahash_partial_update(struct ahash_request **preq,
struct crypto_ahash *tfm, const struct hash_testvec *template,
void *hash_buff, int k, int temp, struct scatterlist *sg,
const char *algo, char *result, struct crypto_wait *wait)
{
char *state;
struct ahash_request *req;
int statesize, ret = -EINVAL;
static const unsigned char guard[] = { 0x00, 0xba, 0xad, 0x00 };
int digestsize = crypto_ahash_digestsize(tfm);
req = *preq;
statesize = crypto_ahash_statesize(
crypto_ahash_reqtfm(req));
state = kmalloc(statesize + sizeof(guard), GFP_KERNEL);
if (!state) {
pr_err("alg: hash: Failed to alloc state for %s\n", algo);
goto out_nostate;
}
memcpy(state + statesize, guard, sizeof(guard));
memset(result, 1, digestsize);
ret = crypto_ahash_export(req, state);
WARN_ON(memcmp(state + statesize, guard, sizeof(guard)));
if (ret) {
pr_err("alg: hash: Failed to export() for %s\n", algo);
goto out;
}
ret = ahash_guard_result(result, 1, digestsize);
if (ret) {
pr_err("alg: hash: Failed, export used req->result for %s\n",
algo);
goto out;
}
ahash_request_free(req);
req = ahash_request_alloc(tfm, GFP_KERNEL);
if (!req) {
pr_err("alg: hash: Failed to alloc request for %s\n", algo);
goto out_noreq;
}
ahash_request_set_callback(req,
CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_req_done, wait);
memcpy(hash_buff, template->plaintext + temp,
template->tap[k]);
sg_init_one(&sg[0], hash_buff, template->tap[k]);
ahash_request_set_crypt(req, sg, result, template->tap[k]);
ret = crypto_ahash_import(req, state);
if (ret) {
pr_err("alg: hash: Failed to import() for %s\n", algo);
goto out;
}
ret = ahash_guard_result(result, 1, digestsize);
if (ret) {
pr_err("alg: hash: Failed, import used req->result for %s\n",
algo);
goto out;
}
ret = crypto_wait_req(crypto_ahash_update(req), wait);
if (ret)
goto out;
*preq = req;
ret = 0;
goto out_noreq;
out:
ahash_request_free(req);
out_noreq:
kfree(state);
out_nostate:
return ret;
}
enum hash_test {
HASH_TEST_DIGEST,
HASH_TEST_FINAL,
HASH_TEST_FINUP
};
static int __test_hash(struct crypto_ahash *tfm,
const struct hash_testvec *template, unsigned int tcount,
enum hash_test test_type, const int align_offset)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_ahash_tfm(tfm));
size_t digest_size = crypto_ahash_digestsize(tfm);
unsigned int i, j, k, temp;
struct scatterlist sg[8];
char *result;
char *key;
struct ahash_request *req;
struct crypto_wait wait;
void *hash_buff;
char *xbuf[XBUFSIZE];
int ret = -ENOMEM;
result = kmalloc(digest_size, GFP_KERNEL);
if (!result)
return ret;
key = kmalloc(MAX_KEYLEN, GFP_KERNEL);
if (!key)
goto out_nobuf;
if (testmgr_alloc_buf(xbuf))
goto out_nobuf;
crypto_init_wait(&wait);
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,
crypto_req_done, &wait);
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].np)
continue;
ret = -EINVAL;
if (WARN_ON(align_offset + template[i].psize > PAGE_SIZE))
goto out;
j++;
memset(result, 0, digest_size);
hash_buff = xbuf[0];
hash_buff += align_offset;
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);
if (template[i].ksize > MAX_KEYLEN) {
pr_err("alg: hash: setkey failed on test %d for %s: key size %d > %d\n",
j, algo, template[i].ksize, MAX_KEYLEN);
ret = -EINVAL;
goto out;
}
memcpy(key, template[i].key, template[i].ksize);
ret = crypto_ahash_setkey(tfm, 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);
switch (test_type) {
case HASH_TEST_DIGEST:
ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
if (ret) {
pr_err("alg: hash: digest failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
break;
case HASH_TEST_FINAL:
memset(result, 1, digest_size);
ret = crypto_wait_req(crypto_ahash_init(req), &wait);
if (ret) {
pr_err("alg: hash: init failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
ret = ahash_guard_result(result, 1, digest_size);
if (ret) {
pr_err("alg: hash: init failed on test %d "
"for %s: used req->result\n", j, algo);
goto out;
}
ret = crypto_wait_req(crypto_ahash_update(req), &wait);
if (ret) {
pr_err("alg: hash: update failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
ret = ahash_guard_result(result, 1, digest_size);
if (ret) {
pr_err("alg: hash: update failed on test %d "
"for %s: used req->result\n", j, algo);
goto out;
}
ret = crypto_wait_req(crypto_ahash_final(req), &wait);
if (ret) {
pr_err("alg: hash: final failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
break;
case HASH_TEST_FINUP:
memset(result, 1, digest_size);
ret = crypto_wait_req(crypto_ahash_init(req), &wait);
if (ret) {
pr_err("alg: hash: init failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
ret = ahash_guard_result(result, 1, digest_size);
if (ret) {
pr_err("alg: hash: init failed on test %d "
"for %s: used req->result\n", j, algo);
goto out;
}
ret = crypto_wait_req(crypto_ahash_finup(req), &wait);
if (ret) {
pr_err("alg: hash: final failed on test %d "
"for %s: ret=%d\n", j, algo, -ret);
goto out;
}
break;
}
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;
}
}
if (test_type)
goto out;
j = 0;
for (i = 0; i < tcount; i++) {
/* alignment tests are only done with continuous buffers */
if (align_offset != 0)
break;
if (!template[i].np)
continue;
j++;
memset(result, 0, digest_size);
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) {
if (template[i].ksize > MAX_KEYLEN) {
pr_err("alg: hash: setkey failed on test %d for %s: key size %d > %d\n",
j, algo, template[i].ksize, MAX_KEYLEN);
ret = -EINVAL;
goto out;
}
crypto_ahash_clear_flags(tfm, ~0);
memcpy(key, template[i].key, template[i].ksize);
ret = crypto_ahash_setkey(tfm, 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_wait_req(crypto_ahash_digest(req), &wait);
if (ret) {
pr_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;
}
}
/* partial update exercise */
j = 0;
for (i = 0; i < tcount; i++) {
/* alignment tests are only done with continuous buffers */
if (align_offset != 0)
break;
if (template[i].np < 2)
continue;
j++;
memset(result, 0, digest_size);
ret = -EINVAL;
hash_buff = xbuf[0];
memcpy(hash_buff, template[i].plaintext,
template[i].tap[0]);
sg_init_one(&sg[0], hash_buff, template[i].tap[0]);
if (template[i].ksize) {
crypto_ahash_clear_flags(tfm, ~0);
if (template[i].ksize > MAX_KEYLEN) {
pr_err("alg: hash: setkey failed on test %d for %s: key size %d > %d\n",
j, algo, template[i].ksize, MAX_KEYLEN);
ret = -EINVAL;
goto out;
}
memcpy(key, template[i].key, template[i].ksize);
ret = crypto_ahash_setkey(tfm, key, template[i].ksize);
if (ret) {
pr_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].tap[0]);
ret = crypto_wait_req(crypto_ahash_init(req), &wait);
if (ret) {
pr_err("alg: hash: init failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
ret = crypto_wait_req(crypto_ahash_update(req), &wait);
if (ret) {
pr_err("alg: hash: update failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
temp = template[i].tap[0];
for (k = 1; k < template[i].np; k++) {
ret = ahash_partial_update(&req, tfm, &template[i],
hash_buff, k, temp, &sg[0], algo, result,
&wait);
if (ret) {
pr_err("alg: hash: partial update failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out_noreq;
}
temp += template[i].tap[k];
}
ret = crypto_wait_req(crypto_ahash_final(req), &wait);
if (ret) {
pr_err("alg: hash: final failed on test %d for %s: ret=%d\n",
j, algo, -ret);
goto out;
}
if (memcmp(result, template[i].digest,
crypto_ahash_digestsize(tfm))) {
pr_err("alg: hash: Partial 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:
kfree(key);
kfree(result);
return ret;
}
static int test_hash(struct crypto_ahash *tfm,
const struct hash_testvec *template,
unsigned int tcount, enum hash_test test_type)
{
unsigned int alignmask;
int ret;
ret = __test_hash(tfm, template, tcount, test_type, 0);
if (ret)
return ret;
/* test unaligned buffers, check with one byte offset */
ret = __test_hash(tfm, template, tcount, test_type, 1);
if (ret)
return ret;
alignmask = crypto_tfm_alg_alignmask(&tfm->base);
if (alignmask) {
/* Check if alignment mask for tfm is correctly set. */
ret = __test_hash(tfm, template, tcount, test_type,
alignmask + 1);
if (ret)
return ret;
}
return 0;
}
static int __test_aead(struct crypto_aead *tfm, int enc,
const struct aead_testvec *template, unsigned int tcount,
const bool diff_dst, const int align_offset)
{
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;
struct scatterlist *sgout;
const char *e, *d;
struct crypto_wait wait;
unsigned int authsize, iv_len;
void *input;
void *output;
void *assoc;
char *iv;
char *xbuf[XBUFSIZE];
char *xoutbuf[XBUFSIZE];
char *axbuf[XBUFSIZE];
iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
if (!iv)
return ret;
key = kmalloc(MAX_KEYLEN, GFP_KERNEL);
if (!key)
goto out_noxbuf;
if (testmgr_alloc_buf(xbuf))
goto out_noxbuf;
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(array3_size(sizeof(*sg), 8, (diff_dst ? 4 : 2)),
GFP_KERNEL);
if (!sg)
goto out_nosg;
sgout = &sg[16];
if (diff_dst)
d = "-ddst";
else
d = "";
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
crypto_init_wait(&wait);
req = aead_request_alloc(tfm, GFP_KERNEL);
if (!req) {
pr_err("alg: aead%s: Failed to allocate request for %s\n",
d, algo);
goto out;
}
aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
crypto_req_done, &wait);
iv_len = crypto_aead_ivsize(tfm);
for (i = 0, j = 0; i < tcount; i++) {
if (template[i].np)
continue;
j++;
/* some templates have no input data but they will
* touch input
*/
input = xbuf[0];
input += align_offset;
assoc = axbuf[0];
ret = -EINVAL;
if (WARN_ON(align_offset + 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, iv_len);
else
memset(iv, 0, iv_len);
crypto_aead_clear_flags(tfm, ~0);
if (template[i].wk)
crypto_aead_set_flags(tfm, CRYPTO_TFM_REQ_WEAK_KEY);
if (template[i].klen > MAX_KEYLEN) {
pr_err("alg: aead%s: setkey failed on test %d for %s: key size %d > %d\n",
d, j, algo, template[i].klen,
MAX_KEYLEN);
ret = -EINVAL;
goto out;
}
memcpy(key, template[i].key, template[i].klen);
ret = crypto_aead_setkey(tfm, key, template[i].klen);
if (template[i].fail == !ret) {
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;
authsize = abs(template[i].rlen - template[i].ilen);
ret = crypto_aead_setauthsize(tfm, authsize);
if (ret) {
pr_err("alg: aead%s: Failed to set authsize to %u on test %d for %s\n",
d, authsize, j, algo);
goto out;
}
k = !!template[i].alen;
sg_init_table(sg, k + 1);
sg_set_buf(&sg[0], assoc, template[i].alen);
sg_set_buf(&sg[k], input,
template[i].ilen + (enc ? authsize : 0));
output = input;
if (diff_dst) {
sg_init_table(sgout, k + 1);
sg_set_buf(&sgout[0], assoc, template[i].alen);
output = xoutbuf[0];
output += align_offset;
sg_set_buf(&sgout[k], output,
template[i].rlen + (enc ? 0 : authsize));
}
aead_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
template[i].ilen, iv);
aead_request_set_ad(req, template[i].alen);
ret = crypto_wait_req(enc ? crypto_aead_encrypt(req)
: crypto_aead_decrypt(req), &wait);
switch (ret) {
case 0:
if (template[i].novrfy) {
/* verification was supposed to fail */
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;
}
break;
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
continue;
/* fall through */
default:
pr_err("alg: aead%s: %s failed on test %d for %s: ret=%d\n",
d, e, j, algo, -ret);
goto out;
}
q = output;
if (memcmp(q, template[i].result, template[i].rlen)) {
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;
}
}
for (i = 0, j = 0; i < tcount; i++) {
/* alignment tests are only done with continuous buffers */
if (align_offset != 0)
break;
if (!template[i].np)
continue;
j++;
if (template[i].iv)
memcpy(iv, template[i].iv, iv_len);
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);
if (template[i].klen > MAX_KEYLEN) {
pr_err("alg: aead%s: setkey failed on test %d for %s: key size %d > %d\n",
d, j, algo, template[i].klen, MAX_KEYLEN);
ret = -EINVAL;
goto out;
}
memcpy(key, template[i].key, template[i].klen);
ret = crypto_aead_setkey(tfm, key, template[i].klen);
if (template[i].fail == !ret) {
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;
authsize = abs(template[i].rlen - template[i].ilen);
ret = -EINVAL;
sg_init_table(sg, template[i].anp + template[i].np);
if (diff_dst)
sg_init_table(sgout, template[i].anp + template[i].np);
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(&sg[k],
memcpy(axbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]),
template[i].assoc + temp,
template[i].atap[k]),
template[i].atap[k]);
if (diff_dst)
sg_set_buf(&sgout[k],
axbuf[IDX[k] >> PAGE_SHIFT] +
offset_in_page(IDX[k]),
template[i].atap[k]);
temp += template[i].atap[k];
}
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]);
sg_set_buf(&sg[template[i].anp + 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]);
sg_set_buf(&sgout[template[i].anp + k],
q, 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;
temp += template[i].tap[k];
}
ret = crypto_aead_setauthsize(tfm, authsize);
if (ret) {
pr_err("alg: aead%s: Failed to set authsize to %u on chunk test %d for %s\n",
d, authsize, j, algo);
goto out;
}
if (enc) {
if (WARN_ON(sg[template[i].anp + k - 1].offset +
sg[template[i].anp + k - 1].length +
authsize > PAGE_SIZE)) {
ret = -EINVAL;
goto out;
}
if (diff_dst)
sgout[template[i].anp + k - 1].length +=
authsize;
sg[template[i].anp + k - 1].length += authsize;
}
aead_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
template[i].ilen,
iv);
aead_request_set_ad(req, template[i].alen);
ret = crypto_wait_req(enc ? crypto_aead_encrypt(req)
: crypto_aead_decrypt(req), &wait);
switch (ret) {
case 0:
if (template[i].novrfy) {
/* verification was supposed to fail */
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;
}
break;
case -EBADMSG:
if (template[i].novrfy)
/* verification failure was expected */
continue;
/* fall through */
default:
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++) {
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)) {
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 (!diff_dst &&
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) {
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;
}
temp += template[i].tap[k];
}
}
ret = 0;
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);
out_noxbuf:
kfree(key);
kfree(iv);
return ret;
}
static int test_aead(struct crypto_aead *tfm, int enc,
const struct aead_testvec *template, unsigned int tcount)
{
unsigned int alignmask;
int ret;
/* test 'dst == src' case */
ret = __test_aead(tfm, enc, template, tcount, false, 0);
if (ret)
return ret;
/* test 'dst != src' case */
ret = __test_aead(tfm, enc, template, tcount, true, 0);
if (ret)
return ret;
/* test unaligned buffers, check with one byte offset */