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linux/crypto/tcrypt.c

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/*
* Quick & dirty crypto testing module.
*
* This will only exist until we have a better testing mechanism
* (e.g. a char device).
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org>
* Copyright (c) 2007 Nokia Siemens Networks
*
* 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/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/scatterlist.h>
#include <linux/string.h>
#include <linux/moduleparam.h>
#include <linux/jiffies.h>
#include <linux/timex.h>
#include <linux/interrupt.h>
#include "tcrypt.h"
/*
* Need slab memory for testing (size in number of pages).
*/
#define TVMEMSIZE 4
/*
* Used by test_cipher_speed()
*/
#define ENCRYPT 1
#define DECRYPT 0
/*
* Used by test_cipher_speed()
*/
static unsigned int sec;
static int mode;
static char *tvmem[TVMEMSIZE];
static char *check[] = {
"des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256",
"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",
"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",
"khazad", "wp512", "wp384", "wp256", "tnepres", "xeta", "fcrypt",
"camellia", "seed", "salsa20", "rmd128", "rmd160", "rmd256", "rmd320",
"lzo", "cts", "zlib", NULL
};
static int test_cipher_jiffies(struct blkcipher_desc *desc, int enc,
struct scatterlist *sg, int blen, int sec)
{
unsigned long start, end;
int bcount;
int ret;
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
if (enc)
ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
else
ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
if (ret)
return ret;
}
printk("%d operations in %d seconds (%ld bytes)\n",
bcount, sec, (long)bcount * blen);
return 0;
}
static int test_cipher_cycles(struct blkcipher_desc *desc, int enc,
struct scatterlist *sg, int blen)
{
unsigned long cycles = 0;
int ret = 0;
int i;
local_bh_disable();
local_irq_disable();
/* Warm-up run. */
for (i = 0; i < 4; i++) {
if (enc)
ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
else
ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
if (enc)
ret = crypto_blkcipher_encrypt(desc, sg, sg, blen);
else
ret = crypto_blkcipher_decrypt(desc, sg, sg, blen);
end = get_cycles();
if (ret)
goto out;
cycles += end - start;
}
out:
local_irq_enable();
local_bh_enable();
if (ret == 0)
printk("1 operation in %lu cycles (%d bytes)\n",
(cycles + 4) / 8, blen);
return ret;
}
static u32 block_sizes[] = { 16, 64, 256, 1024, 8192, 0 };
static void test_cipher_speed(const char *algo, int enc, unsigned int sec,
struct cipher_speed_template *template,
unsigned int tcount, u8 *keysize)
{
unsigned int ret, i, j, iv_len;
const char *key, iv[128];
struct crypto_blkcipher *tfm;
struct blkcipher_desc desc;
const char *e;
u32 *b_size;
if (enc == ENCRYPT)
e = "encryption";
else
e = "decryption";
printk("\ntesting speed of %s %s\n", algo, e);
tfm = crypto_alloc_blkcipher(algo, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
printk("failed to load transform for %s: %ld\n", algo,
PTR_ERR(tfm));
return;
}
desc.tfm = tfm;
desc.flags = 0;
i = 0;
do {
b_size = block_sizes;
do {
struct scatterlist sg[TVMEMSIZE];
if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {
printk("template (%u) too big for "
"tvmem (%lu)\n", *keysize + *b_size,
TVMEMSIZE * PAGE_SIZE);
goto out;
}
printk("test %u (%d bit key, %d byte blocks): ", i,
*keysize * 8, *b_size);
memset(tvmem[0], 0xff, PAGE_SIZE);
/* set key, plain text and IV */
key = tvmem[0];
for (j = 0; j < tcount; j++) {
if (template[j].klen == *keysize) {
key = template[j].key;
break;
}
}
ret = crypto_blkcipher_setkey(tfm, key, *keysize);
if (ret) {
printk("setkey() failed flags=%x\n",
crypto_blkcipher_get_flags(tfm));
goto out;
}
sg_init_table(sg, TVMEMSIZE);
sg_set_buf(sg, tvmem[0] + *keysize,
PAGE_SIZE - *keysize);
for (j = 1; j < TVMEMSIZE; j++) {
sg_set_buf(sg + j, tvmem[j], PAGE_SIZE);
memset (tvmem[j], 0xff, PAGE_SIZE);
}
iv_len = crypto_blkcipher_ivsize(tfm);
if (iv_len) {
memset(&iv, 0xff, iv_len);
crypto_blkcipher_set_iv(tfm, iv, iv_len);
}
if (sec)
ret = test_cipher_jiffies(&desc, enc, sg,
*b_size, sec);
else
ret = test_cipher_cycles(&desc, enc, sg,
*b_size);
if (ret) {
printk("%s() failed flags=%x\n", e, desc.flags);
break;
}
b_size++;
i++;
} while (*b_size);
keysize++;
} while (*keysize);
out:
crypto_free_blkcipher(tfm);
}
static int test_hash_jiffies_digest(struct hash_desc *desc,
struct scatterlist *sg, int blen,
char *out, int sec)
{
unsigned long start, end;
int bcount;
int ret;
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
return ret;
}
printk("%6u opers/sec, %9lu bytes/sec\n",
bcount / sec, ((long)bcount * blen) / sec);
return 0;
}
static int test_hash_jiffies(struct hash_desc *desc, struct scatterlist *sg,
int blen, int plen, char *out, int sec)
{
unsigned long start, end;
int bcount, pcount;
int ret;
if (plen == blen)
return test_hash_jiffies_digest(desc, sg, blen, out, sec);
for (start = jiffies, end = start + sec * HZ, bcount = 0;
time_before(jiffies, end); bcount++) {
ret = crypto_hash_init(desc);
if (ret)
return ret;
for (pcount = 0; pcount < blen; pcount += plen) {
ret = crypto_hash_update(desc, sg, plen);
if (ret)
return ret;
}
/* we assume there is enough space in 'out' for the result */
ret = crypto_hash_final(desc, out);
if (ret)
return ret;
}
printk("%6u opers/sec, %9lu bytes/sec\n",
bcount / sec, ((long)bcount * blen) / sec);
return 0;
}
static int test_hash_cycles_digest(struct hash_desc *desc,
struct scatterlist *sg, int blen, char *out)
{
unsigned long cycles = 0;
int i;
int ret;
local_bh_disable();
local_irq_disable();
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = crypto_hash_digest(desc, sg, blen, out);
if (ret)
goto out;
end = get_cycles();
cycles += end - start;
}
out:
local_irq_enable();
local_bh_enable();
if (ret)
return ret;
printk("%6lu cycles/operation, %4lu cycles/byte\n",
cycles / 8, cycles / (8 * blen));
return 0;
}
static int test_hash_cycles(struct hash_desc *desc, struct scatterlist *sg,
int blen, int plen, char *out)
{
unsigned long cycles = 0;
int i, pcount;
int ret;
if (plen == blen)
return test_hash_cycles_digest(desc, sg, blen, out);
local_bh_disable();
local_irq_disable();
/* Warm-up run. */
for (i = 0; i < 4; i++) {
ret = crypto_hash_init(desc);
if (ret)
goto out;
for (pcount = 0; pcount < blen; pcount += plen) {
ret = crypto_hash_update(desc, sg, plen);
if (ret)
goto out;
}
ret = crypto_hash_final(desc, out);
if (ret)
goto out;
}
/* The real thing. */
for (i = 0; i < 8; i++) {
cycles_t start, end;
start = get_cycles();
ret = crypto_hash_init(desc);
if (ret)
goto out;
for (pcount = 0; pcount < blen; pcount += plen) {
ret = crypto_hash_update(desc, sg, plen);
if (ret)
goto out;
}
ret = crypto_hash_final(desc, out);
if (ret)
goto out;
end = get_cycles();
cycles += end - start;
}
out:
local_irq_enable();
local_bh_enable();
if (ret)
return ret;
printk("%6lu cycles/operation, %4lu cycles/byte\n",
cycles / 8, cycles / (8 * blen));
return 0;
}
static void test_hash_speed(const char *algo, unsigned int sec,
struct hash_speed *speed)
{
struct scatterlist sg[TVMEMSIZE];
struct crypto_hash *tfm;
struct hash_desc desc;
char output[1024];
int i;
int ret;
printk("\ntesting speed of %s\n", algo);
tfm = crypto_alloc_hash(algo, 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm)) {
printk("failed to load transform for %s: %ld\n", algo,
PTR_ERR(tfm));
return;
}
desc.tfm = tfm;
desc.flags = 0;
if (crypto_hash_digestsize(tfm) > sizeof(output)) {
printk("digestsize(%u) > outputbuffer(%zu)\n",
crypto_hash_digestsize(tfm), sizeof(output));
goto out;
}
sg_init_table(sg, TVMEMSIZE);
for (i = 0; i < TVMEMSIZE; i++) {
sg_set_buf(sg + i, tvmem[i], PAGE_SIZE);
memset(tvmem[i], 0xff, PAGE_SIZE);
}
for (i = 0; speed[i].blen != 0; i++) {
if (speed[i].blen > TVMEMSIZE * PAGE_SIZE) {
printk("template (%u) too big for tvmem (%lu)\n",
speed[i].blen, TVMEMSIZE * PAGE_SIZE);
goto out;
}
printk("test%3u (%5u byte blocks,%5u bytes per update,%4u updates): ",
i, speed[i].blen, speed[i].plen, speed[i].blen / speed[i].plen);
if (sec)
ret = test_hash_jiffies(&desc, sg, speed[i].blen,
speed[i].plen, output, sec);
else
ret = test_hash_cycles(&desc, sg, speed[i].blen,
speed[i].plen, output);
if (ret) {
printk("hashing failed ret=%d\n", ret);
break;
}
}
out:
crypto_free_hash(tfm);
}
static void test_available(void)
{
char **name = check;
while (*name) {
printk("alg %s ", *name);
printk(crypto_has_alg(*name, 0, 0) ?
"found\n" : "not found\n");
name++;
}
}
static inline int tcrypt_test(const char *alg)
{
return alg_test(alg, alg, 0, 0);
}
static void do_test(int m)
{
int i;
switch (m) {
case 0:
for (i = 1; i < 200; i++)
do_test(i);
break;
case 1:
tcrypt_test("md5");
break;
case 2:
tcrypt_test("sha1");
break;
case 3:
tcrypt_test("ecb(des)");
tcrypt_test("cbc(des)");
break;
case 4:
tcrypt_test("ecb(des3_ede)");
tcrypt_test("cbc(des3_ede)");
break;
case 5:
tcrypt_test("md4");
break;
case 6:
tcrypt_test("sha256");
break;
case 7:
tcrypt_test("ecb(blowfish)");
tcrypt_test("cbc(blowfish)");
break;
case 8:
tcrypt_test("ecb(twofish)");
tcrypt_test("cbc(twofish)");
break;
case 9:
tcrypt_test("ecb(serpent)");
break;
case 10:
tcrypt_test("ecb(aes)");
tcrypt_test("cbc(aes)");
tcrypt_test("lrw(aes)");
tcrypt_test("xts(aes)");
tcrypt_test("rfc3686(ctr(aes))");
break;
case 11:
tcrypt_test("sha384");
break;
case 12:
tcrypt_test("sha512");
break;
case 13:
tcrypt_test("deflate");
break;
case 14:
tcrypt_test("ecb(cast5)");
break;
case 15:
tcrypt_test("ecb(cast6)");
break;
case 16:
tcrypt_test("ecb(arc4)");
break;
case 17:
tcrypt_test("michael_mic");
break;
case 18:
tcrypt_test("crc32c");
break;
case 19:
tcrypt_test("ecb(tea)");
break;
case 20:
tcrypt_test("ecb(xtea)");
break;
case 21:
tcrypt_test("ecb(khazad)");
break;
case 22:
tcrypt_test("wp512");
break;
case 23:
tcrypt_test("wp384");
break;
case 24:
tcrypt_test("wp256");
break;
case 25:
tcrypt_test("ecb(tnepres)");
break;
case 26:
tcrypt_test("ecb(anubis)");
tcrypt_test("cbc(anubis)");
break;
case 27:
tcrypt_test("tgr192");
break;
case 28:
tcrypt_test("tgr160");
break;
case 29:
tcrypt_test("tgr128");
break;
case 30:
tcrypt_test("ecb(xeta)");
break;
case 31:
tcrypt_test("pcbc(fcrypt)");
break;
case 32:
tcrypt_test("ecb(camellia)");
tcrypt_test("cbc(camellia)");
break;
case 33:
tcrypt_test("sha224");
break;
case 34:
tcrypt_test("salsa20");
break;
case 35:
tcrypt_test("gcm(aes)");
break;
case 36:
tcrypt_test("lzo");
break;
case 37:
tcrypt_test("ccm(aes)");
break;
case 38:
tcrypt_test("cts(cbc(aes))");
break;
case 39:
tcrypt_test("rmd128");
break;
case 40:
tcrypt_test("rmd160");
break;
case 41:
tcrypt_test("rmd256");
break;
case 42:
tcrypt_test("rmd320");
break;
case 43:
tcrypt_test("ecb(seed)");
break;
case 44:
tcrypt_test("zlib");
break;
case 100:
tcrypt_test("hmac(md5)");
break;
case 101:
tcrypt_test("hmac(sha1)");
break;
case 102:
tcrypt_test("hmac(sha256)");
break;
case 103:
tcrypt_test("hmac(sha384)");
break;
case 104:
tcrypt_test("hmac(sha512)");
break;
case 105:
tcrypt_test("hmac(sha224)");
break;
case 106:
tcrypt_test("xcbc(aes)");
break;
case 107:
tcrypt_test("hmac(rmd128)");
break;
case 108:
tcrypt_test("hmac(rmd160)");
break;
case 200:
test_cipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("ecb(aes)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(aes)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(aes)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("lrw(aes)", ENCRYPT, sec, NULL, 0,
speed_template_32_40_48);
test_cipher_speed("lrw(aes)", DECRYPT, sec, NULL, 0,
speed_template_32_40_48);
test_cipher_speed("xts(aes)", ENCRYPT, sec, NULL, 0,
speed_template_32_48_64);
test_cipher_speed("xts(aes)", DECRYPT, sec, NULL, 0,
speed_template_32_48_64);
break;
case 201:
test_cipher_speed("ecb(des3_ede)", ENCRYPT, sec,
des3_speed_template, DES3_SPEED_VECTORS,
speed_template_24);
test_cipher_speed("ecb(des3_ede)", DECRYPT, sec,
des3_speed_template, DES3_SPEED_VECTORS,
speed_template_24);
test_cipher_speed("cbc(des3_ede)", ENCRYPT, sec,
des3_speed_template, DES3_SPEED_VECTORS,
speed_template_24);
test_cipher_speed("cbc(des3_ede)", DECRYPT, sec,
des3_speed_template, DES3_SPEED_VECTORS,
speed_template_24);
break;
case 202:
test_cipher_speed("ecb(twofish)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("ecb(twofish)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(twofish)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(twofish)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
break;
case 203:
test_cipher_speed("ecb(blowfish)", ENCRYPT, sec, NULL, 0,
speed_template_8_32);
test_cipher_speed("ecb(blowfish)", DECRYPT, sec, NULL, 0,
speed_template_8_32);
test_cipher_speed("cbc(blowfish)", ENCRYPT, sec, NULL, 0,
speed_template_8_32);
test_cipher_speed("cbc(blowfish)", DECRYPT, sec, NULL, 0,
speed_template_8_32);
break;
case 204:
test_cipher_speed("ecb(des)", ENCRYPT, sec, NULL, 0,
speed_template_8);
test_cipher_speed("ecb(des)", DECRYPT, sec, NULL, 0,
speed_template_8);
test_cipher_speed("cbc(des)", ENCRYPT, sec, NULL, 0,
speed_template_8);
test_cipher_speed("cbc(des)", DECRYPT, sec, NULL, 0,
speed_template_8);
break;
case 205:
test_cipher_speed("ecb(camellia)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("ecb(camellia)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(camellia)", ENCRYPT, sec, NULL, 0,
speed_template_16_24_32);
test_cipher_speed("cbc(camellia)", DECRYPT, sec, NULL, 0,
speed_template_16_24_32);
break;
case 206:
test_cipher_speed("salsa20", ENCRYPT, sec, NULL, 0,
speed_template_16_32);
break;
case 300:
/* fall through */
case 301:
test_hash_speed("md4", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 302:
test_hash_speed("md5", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 303:
test_hash_speed("sha1", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 304:
test_hash_speed("sha256", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 305:
test_hash_speed("sha384", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 306:
test_hash_speed("sha512", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 307:
test_hash_speed("wp256", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 308:
test_hash_speed("wp384", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 309:
test_hash_speed("wp512", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 310:
test_hash_speed("tgr128", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 311:
test_hash_speed("tgr160", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 312:
test_hash_speed("tgr192", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 313:
test_hash_speed("sha224", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 314:
test_hash_speed("rmd128", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 315:
test_hash_speed("rmd160", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 316:
test_hash_speed("rmd256", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 317:
test_hash_speed("rmd320", sec, generic_hash_speed_template);
if (mode > 300 && mode < 400) break;
case 399:
break;
case 1000:
test_available();
break;
}
}
static int __init tcrypt_mod_init(void)
{
int err = -ENOMEM;
int i;
for (i = 0; i < TVMEMSIZE; i++) {
tvmem[i] = (void *)__get_free_page(GFP_KERNEL);
if (!tvmem[i])
goto err_free_tv;
}
do_test(mode);
/* We intentionaly return -EAGAIN to prevent keeping
* the module. It does all its work from init()
* and doesn't offer any runtime functionality
* => we don't need it in the memory, do we?
* -- mludvig
*/
err = -EAGAIN;
err_free_tv:
for (i = 0; i < TVMEMSIZE && tvmem[i]; i++)
free_page((unsigned long)tvmem[i]);
return err;
}
/*
* If an init function is provided, an exit function must also be provided
* to allow module unload.
*/
static void __exit tcrypt_mod_fini(void) { }
module_init(tcrypt_mod_init);
module_exit(tcrypt_mod_fini);
module_param(mode, int, 0);
module_param(sec, uint, 0);
MODULE_PARM_DESC(sec, "Length in seconds of speed tests "
"(defaults to zero which uses CPU cycles instead)");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Quick & dirty crypto testing module");
MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
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