renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-29 15:43:59 +08:00
Code
487b391d6e
linux-next/crypto/testmgr.c
Geert Uytterhoeven b812eb0076 crypto: testmgr - Validate output length in (de)compression tests 
When self-testing (de)compression algorithms, make sure the actual size of
the (de)compressed output data matches the expected output size.
Otherwise, in case the actual output size would be smaller than the expected
output size, the subsequent buffer compare test would still succeed, and no
error would be reported.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2008-12-25 11:02:04 +11:00

1939 lines
40 KiB
C
Raw Blame History

/*
* Algorithm testing framework and tests.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org>
* Copyright (c) 2007 Nokia Siemens Networks
* Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
*
* 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 "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 hash_test_suite {
struct hash_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);
union {
struct aead_test_suite aead;
struct cipher_test_suite cipher;
struct comp_test_suite comp;
struct hash_test_suite hash;
} suite;
};
static unsigned int IDX[8] = { IDX1, IDX2, IDX3, IDX4, IDX5, IDX6, IDX7, IDX8 };
static char *xbuf[XBUFSIZE];
static char *axbuf[XBUFSIZE];
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 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;
int ret;
void *hash_buff;
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);
ret = -ENOMEM;
goto out_noreq;
}
ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
tcrypt_complete, &tresult);
for (i = 0; i < tcount; i++) {
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", i + 1, 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", i + 1, 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",
i + 1, 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);
for (k = 0; k < template[i].np; k++) {
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:
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 = 0;
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];
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);
ret = -ENOMEM;
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];
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:
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: 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);
for (k = 0, temp = 0; k < template[i].anp; k++) {
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:
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: 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);
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;
int ret;
char *q;
const char *e;
void *data;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
j = 0;
for (i = 0; i < tcount; i++) {
if (template[i].np)
continue;
j++;
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:
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;
int ret;
char *q;
struct ablkcipher_request *req;
struct scatterlist sg[8];
const char *e;
struct tcrypt_result result;
void *data;
char iv[MAX_IVLEN];
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);
ret = -ENOMEM;
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++;
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);
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, 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, 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) {
printk(KERN_ERR "alg: comp: Decompression test %d "
"failed for %s: output len = %d\n", i + 1, algo,
dlen);
ret = -EINVAL;
goto out;
}
if (memcmp(result, dtemplate[i].output, dlen)) {
printk(KERN_ERR "alg: comp: Decompression test %d "
"failed for %s\n", i + 1, algo);
hexdump(result, dlen);
ret = -EINVAL;
goto out;
}
}
ret = 0;
out:
return ret;
}
static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask)
{
struct crypto_aead *tfm;
int err = 0;
tfm = crypto_alloc_aead(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: aead: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
}
if (desc->suite.aead.enc.vecs) {
err = test_aead(tfm, ENCRYPT, desc->suite.aead.enc.vecs,
desc->suite.aead.enc.count);
if (err)
goto out;
}
if (!err && desc->suite.aead.dec.vecs)
err = test_aead(tfm, DECRYPT, desc->suite.aead.dec.vecs,
desc->suite.aead.dec.count);
out:
crypto_free_aead(tfm);
return err;
}
static int alg_test_cipher(const struct alg_test_desc *desc,
const char *driver, u32 type, u32 mask)
{
struct crypto_cipher *tfm;
int err = 0;
tfm = crypto_alloc_cipher(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: cipher: Failed to load transform for "
"%s: %ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
}
if (desc->suite.cipher.enc.vecs) {
err = test_cipher(tfm, ENCRYPT, desc->suite.cipher.enc.vecs,
desc->suite.cipher.enc.count);
if (err)
goto out;
}
if (desc->suite.cipher.dec.vecs)
err = test_cipher(tfm, DECRYPT, desc->suite.cipher.dec.vecs,
desc->suite.cipher.dec.count);
out:
crypto_free_cipher(tfm);
return err;
}
static int alg_test_skcipher(const struct alg_test_desc *desc,
const char *driver, u32 type, u32 mask)
{
struct crypto_ablkcipher *tfm;
int err = 0;
tfm = crypto_alloc_ablkcipher(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: skcipher: Failed to load transform for "
"%s: %ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
}
if (desc->suite.cipher.enc.vecs) {
err = test_skcipher(tfm, ENCRYPT, desc->suite.cipher.enc.vecs,
desc->suite.cipher.enc.count);
if (err)
goto out;
}
if (desc->suite.cipher.dec.vecs)
err = test_skcipher(tfm, DECRYPT, desc->suite.cipher.dec.vecs,
desc->suite.cipher.dec.count);
out:
crypto_free_ablkcipher(tfm);
return err;
}
static int alg_test_comp(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask)
{
struct crypto_comp *tfm;
int err;
tfm = crypto_alloc_comp(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: comp: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
}
err = test_comp(tfm, desc->suite.comp.comp.vecs,
desc->suite.comp.decomp.vecs,
desc->suite.comp.comp.count,
desc->suite.comp.decomp.count);
crypto_free_comp(tfm);
return err;
}
static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask)
{
struct crypto_ahash *tfm;
int err;
tfm = crypto_alloc_ahash(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: hash: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
return PTR_ERR(tfm);
}
err = test_hash(tfm, desc->suite.hash.vecs, desc->suite.hash.count);
crypto_free_ahash(tfm);
return err;
}
static int alg_test_crc32c(const struct alg_test_desc *desc,
const char *driver, u32 type, u32 mask)
{
struct crypto_shash *tfm;
u32 val;
int err;
err = alg_test_hash(desc, driver, type, mask);
if (err)
goto out;
tfm = crypto_alloc_shash(driver, type, mask);
if (IS_ERR(tfm)) {
printk(KERN_ERR "alg: crc32c: Failed to load transform for %s: "
"%ld\n", driver, PTR_ERR(tfm));
err = PTR_ERR(tfm);
goto out;
}
do {
struct {
struct shash_desc shash;
char ctx[crypto_shash_descsize(tfm)];
} sdesc;
sdesc.shash.tfm = tfm;
sdesc.shash.flags = 0;
*(u32 *)sdesc.ctx = le32_to_cpu(420553207);
err = crypto_shash_final(&sdesc.shash, (u8 *)&val);
if (err) {
printk(KERN_ERR "alg: crc32c: Operation failed for "
"%s: %d\n", driver, err);
break;
}
if (val != ~420553207) {
printk(KERN_ERR "alg: crc32c: Test failed for %s: "
"%d\n", driver, val);
err = -EINVAL;
}
} while (0);
crypto_free_shash(tfm);
out:
return err;
}
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
.alg = "cbc(aes)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = aes_cbc_enc_tv_template,
.count = AES_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_cbc_dec_tv_template,
.count = AES_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(anubis)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = anubis_cbc_enc_tv_template,
.count = ANUBIS_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = anubis_cbc_dec_tv_template,
.count = ANUBIS_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(blowfish)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = bf_cbc_enc_tv_template,
.count = BF_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = bf_cbc_dec_tv_template,
.count = BF_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(camellia)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = camellia_cbc_enc_tv_template,
.count = CAMELLIA_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = camellia_cbc_dec_tv_template,
.count = CAMELLIA_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(des)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = des_cbc_enc_tv_template,
.count = DES_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = des_cbc_dec_tv_template,
.count = DES_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(des3_ede)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = des3_ede_cbc_enc_tv_template,
.count = DES3_EDE_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = des3_ede_cbc_dec_tv_template,
.count = DES3_EDE_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "cbc(twofish)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = tf_cbc_enc_tv_template,
.count = TF_CBC_ENC_TEST_VECTORS
},
.dec = {
.vecs = tf_cbc_dec_tv_template,
.count = TF_CBC_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ccm(aes)",
.test = alg_test_aead,
.suite = {
.aead = {
.enc = {
.vecs = aes_ccm_enc_tv_template,
.count = AES_CCM_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_ccm_dec_tv_template,
.count = AES_CCM_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "crc32c",
.test = alg_test_crc32c,
.suite = {
.hash = {
.vecs = crc32c_tv_template,
.count = CRC32C_TEST_VECTORS
}
}
}, {
.alg = "cts(cbc(aes))",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = cts_mode_enc_tv_template,
.count = CTS_MODE_ENC_TEST_VECTORS
},
.dec = {
.vecs = cts_mode_dec_tv_template,
.count = CTS_MODE_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "deflate",
.test = alg_test_comp,
.suite = {
.comp = {
.comp = {
.vecs = deflate_comp_tv_template,
.count = DEFLATE_COMP_TEST_VECTORS
},
.decomp = {
.vecs = deflate_decomp_tv_template,
.count = DEFLATE_DECOMP_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(aes)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = aes_enc_tv_template,
.count = AES_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_dec_tv_template,
.count = AES_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(anubis)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = anubis_enc_tv_template,
.count = ANUBIS_ENC_TEST_VECTORS
},
.dec = {
.vecs = anubis_dec_tv_template,
.count = ANUBIS_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(arc4)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = arc4_enc_tv_template,
.count = ARC4_ENC_TEST_VECTORS
},
.dec = {
.vecs = arc4_dec_tv_template,
.count = ARC4_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(blowfish)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = bf_enc_tv_template,
.count = BF_ENC_TEST_VECTORS
},
.dec = {
.vecs = bf_dec_tv_template,
.count = BF_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(camellia)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = camellia_enc_tv_template,
.count = CAMELLIA_ENC_TEST_VECTORS
},
.dec = {
.vecs = camellia_dec_tv_template,
.count = CAMELLIA_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(cast5)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = cast5_enc_tv_template,
.count = CAST5_ENC_TEST_VECTORS
},
.dec = {
.vecs = cast5_dec_tv_template,
.count = CAST5_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(cast6)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = cast6_enc_tv_template,
.count = CAST6_ENC_TEST_VECTORS
},
.dec = {
.vecs = cast6_dec_tv_template,
.count = CAST6_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(des)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = des_enc_tv_template,
.count = DES_ENC_TEST_VECTORS
},
.dec = {
.vecs = des_dec_tv_template,
.count = DES_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(des3_ede)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = des3_ede_enc_tv_template,
.count = DES3_EDE_ENC_TEST_VECTORS
},
.dec = {
.vecs = des3_ede_dec_tv_template,
.count = DES3_EDE_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(khazad)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = khazad_enc_tv_template,
.count = KHAZAD_ENC_TEST_VECTORS
},
.dec = {
.vecs = khazad_dec_tv_template,
.count = KHAZAD_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(seed)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = seed_enc_tv_template,
.count = SEED_ENC_TEST_VECTORS
},
.dec = {
.vecs = seed_dec_tv_template,
.count = SEED_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(serpent)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = serpent_enc_tv_template,
.count = SERPENT_ENC_TEST_VECTORS
},
.dec = {
.vecs = serpent_dec_tv_template,
.count = SERPENT_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(tea)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = tea_enc_tv_template,
.count = TEA_ENC_TEST_VECTORS
},
.dec = {
.vecs = tea_dec_tv_template,
.count = TEA_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(tnepres)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = tnepres_enc_tv_template,
.count = TNEPRES_ENC_TEST_VECTORS
},
.dec = {
.vecs = tnepres_dec_tv_template,
.count = TNEPRES_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(twofish)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = tf_enc_tv_template,
.count = TF_ENC_TEST_VECTORS
},
.dec = {
.vecs = tf_dec_tv_template,
.count = TF_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(xeta)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = xeta_enc_tv_template,
.count = XETA_ENC_TEST_VECTORS
},
.dec = {
.vecs = xeta_dec_tv_template,
.count = XETA_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "ecb(xtea)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = xtea_enc_tv_template,
.count = XTEA_ENC_TEST_VECTORS
},
.dec = {
.vecs = xtea_dec_tv_template,
.count = XTEA_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "gcm(aes)",
.test = alg_test_aead,
.suite = {
.aead = {
.enc = {
.vecs = aes_gcm_enc_tv_template,
.count = AES_GCM_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_gcm_dec_tv_template,
.count = AES_GCM_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "hmac(md5)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_md5_tv_template,
.count = HMAC_MD5_TEST_VECTORS
}
}
}, {
.alg = "hmac(rmd128)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_rmd128_tv_template,
.count = HMAC_RMD128_TEST_VECTORS
}
}
}, {
.alg = "hmac(rmd160)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_rmd160_tv_template,
.count = HMAC_RMD160_TEST_VECTORS
}
}
}, {
.alg = "hmac(sha1)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_sha1_tv_template,
.count = HMAC_SHA1_TEST_VECTORS
}
}
}, {
.alg = "hmac(sha224)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_sha224_tv_template,
.count = HMAC_SHA224_TEST_VECTORS
}
}
}, {
.alg = "hmac(sha256)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_sha256_tv_template,
.count = HMAC_SHA256_TEST_VECTORS
}
}
}, {
.alg = "hmac(sha384)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_sha384_tv_template,
.count = HMAC_SHA384_TEST_VECTORS
}
}
}, {
.alg = "hmac(sha512)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = hmac_sha512_tv_template,
.count = HMAC_SHA512_TEST_VECTORS
}
}
}, {
.alg = "lrw(aes)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = aes_lrw_enc_tv_template,
.count = AES_LRW_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_lrw_dec_tv_template,
.count = AES_LRW_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "lzo",
.test = alg_test_comp,
.suite = {
.comp = {
.comp = {
.vecs = lzo_comp_tv_template,
.count = LZO_COMP_TEST_VECTORS
},
.decomp = {
.vecs = lzo_decomp_tv_template,
.count = LZO_DECOMP_TEST_VECTORS
}
}
}
}, {
.alg = "md4",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = md4_tv_template,
.count = MD4_TEST_VECTORS
}
}
}, {
.alg = "md5",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = md5_tv_template,
.count = MD5_TEST_VECTORS
}
}
}, {
.alg = "michael_mic",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = michael_mic_tv_template,
.count = MICHAEL_MIC_TEST_VECTORS
}
}
}, {
.alg = "pcbc(fcrypt)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = fcrypt_pcbc_enc_tv_template,
.count = FCRYPT_ENC_TEST_VECTORS
},
.dec = {
.vecs = fcrypt_pcbc_dec_tv_template,
.count = FCRYPT_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "rfc3686(ctr(aes))",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = aes_ctr_enc_tv_template,
.count = AES_CTR_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_ctr_dec_tv_template,
.count = AES_CTR_DEC_TEST_VECTORS
}
}
}
}, {
.alg = "rmd128",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = rmd128_tv_template,
.count = RMD128_TEST_VECTORS
}
}
}, {
.alg = "rmd160",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = rmd160_tv_template,
.count = RMD160_TEST_VECTORS
}
}
}, {
.alg = "rmd256",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = rmd256_tv_template,
.count = RMD256_TEST_VECTORS
}
}
}, {
.alg = "rmd320",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = rmd320_tv_template,
.count = RMD320_TEST_VECTORS
}
}
}, {
.alg = "salsa20",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = salsa20_stream_enc_tv_template,
.count = SALSA20_STREAM_ENC_TEST_VECTORS
}
}
}
}, {
.alg = "sha1",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = sha1_tv_template,
.count = SHA1_TEST_VECTORS
}
}
}, {
.alg = "sha224",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = sha224_tv_template,
.count = SHA224_TEST_VECTORS
}
}
}, {
.alg = "sha256",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = sha256_tv_template,
.count = SHA256_TEST_VECTORS
}
}
}, {
.alg = "sha384",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = sha384_tv_template,
.count = SHA384_TEST_VECTORS
}
}
}, {
.alg = "sha512",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = sha512_tv_template,
.count = SHA512_TEST_VECTORS
}
}
}, {
.alg = "tgr128",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = tgr128_tv_template,
.count = TGR128_TEST_VECTORS
}
}
}, {
.alg = "tgr160",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = tgr160_tv_template,
.count = TGR160_TEST_VECTORS
}
}
}, {
.alg = "tgr192",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = tgr192_tv_template,
.count = TGR192_TEST_VECTORS
}
}
}, {
.alg = "wp256",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = wp256_tv_template,
.count = WP256_TEST_VECTORS
}
}
}, {
.alg = "wp384",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = wp384_tv_template,
.count = WP384_TEST_VECTORS
}
}
}, {
.alg = "wp512",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = wp512_tv_template,
.count = WP512_TEST_VECTORS
}
}
}, {
.alg = "xcbc(aes)",
.test = alg_test_hash,
.suite = {
.hash = {
.vecs = aes_xcbc128_tv_template,
.count = XCBC_AES_TEST_VECTORS
}
}
}, {
.alg = "xts(aes)",
.test = alg_test_skcipher,
.suite = {
.cipher = {
.enc = {
.vecs = aes_xts_enc_tv_template,
.count = AES_XTS_ENC_TEST_VECTORS
},
.dec = {
.vecs = aes_xts_dec_tv_template,
.count = AES_XTS_DEC_TEST_VECTORS
}
}
}
}
};
static int alg_find_test(const char *alg)
{
int start = 0;
int end = ARRAY_SIZE(alg_test_descs);
while (start < end) {
int i = (start + end) / 2;
int diff = strcmp(alg_test_descs[i].alg, alg);
if (diff > 0) {
end = i;
continue;
}
if (diff < 0) {
start = i + 1;
continue;
}
return i;
}
return -1;
}
int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
{
int i;
int rc;
if ((type & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_CIPHER) {
char nalg[CRYPTO_MAX_ALG_NAME];
if (snprintf(nalg, sizeof(nalg), "ecb(%s)", alg) >=
sizeof(nalg))
return -ENAMETOOLONG;
i = alg_find_test(nalg);
if (i < 0)
goto notest;
return alg_test_cipher(alg_test_descs + i, driver, type, mask);
}
i = alg_find_test(alg);
if (i < 0)
goto notest;
rc = alg_test_descs[i].test(alg_test_descs + i, driver,
type, mask);
if (fips_enabled && rc)
panic("%s: %s alg self test failed in fips mode!\n", driver, alg);
return rc;
notest:
printk(KERN_INFO "alg: No test for %s (%s)\n", alg, driver);
return 0;
}
EXPORT_SYMBOL_GPL(alg_test);
int __init testmgr_init(void)
{
int i;
for (i = 0; i < XBUFSIZE; i++) {
xbuf[i] = (void *)__get_free_page(GFP_KERNEL);
if (!xbuf[i])
goto err_free_xbuf;
}
for (i = 0; i < XBUFSIZE; i++) {
axbuf[i] = (void *)__get_free_page(GFP_KERNEL);
if (!axbuf[i])
goto err_free_axbuf;
}
return 0;
err_free_axbuf:
for (i = 0; i < XBUFSIZE && axbuf[i]; i++)
free_page((unsigned long)axbuf[i]);
err_free_xbuf:
for (i = 0; i < XBUFSIZE && xbuf[i]; i++)
free_page((unsigned long)xbuf[i]);
return -ENOMEM;
}
void testmgr_exit(void)
{
int i;
for (i = 0; i < XBUFSIZE; i++)
free_page((unsigned long)axbuf[i]);
for (i = 0; i < XBUFSIZE; i++)
free_page((unsigned long)xbuf[i]);
}
View Git Blame Copy Permalink