* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
- * 14 - 09 - 2003
- * Rewritten by Kartikey Mahendra Bhatt
+ * 2004-08-09 Added cipher speed tests (Reyk Floeter <reyk@vantronix.net>)
+ * 2003-09-14 Rewritten by Kartikey Mahendra Bhatt
+ *
*/
#include <linux/init.h>
#include <linux/crypto.h>
#include <linux/highmem.h>
#include <linux/moduleparam.h>
+#include <linux/jiffies.h>
+#include <linux/timex.h>
+#include <linux/interrupt.h>
#include "tcrypt.h"
/*
* Need to kmalloc() memory for testing kmap().
*/
-#define TVMEMSIZE 4096
+#define TVMEMSIZE 16384
#define XBUFSIZE 32768
/*
static unsigned int IDX[8] = { IDX1, IDX2, IDX3, IDX4, IDX5, IDX6, IDX7, IDX8 };
+/*
+ * Used by test_cipher_speed()
+ */
+static unsigned int sec;
+
static int mode;
static char *xbuf;
static char *tvmem;
crypto_free_tfm(tfm);
}
+static int test_cipher_jiffies(struct crypto_tfm *tfm, int enc, char *p,
+ int blen, int sec)
+{
+ struct scatterlist sg[8];
+ unsigned long start, end;
+ int bcount;
+ int ret;
+
+ sg[0].page = virt_to_page(p);
+ sg[0].offset = offset_in_page(p);
+ sg[0].length = blen;
+
+ for (start = jiffies, end = start + sec * HZ, bcount = 0;
+ time_before(jiffies, end); bcount++) {
+ if (enc)
+ ret = crypto_cipher_encrypt(tfm, sg, sg, blen);
+ else
+ ret = crypto_cipher_decrypt(tfm, 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 crypto_tfm *tfm, int enc, char *p,
+ int blen)
+{
+ struct scatterlist sg[8];
+ unsigned long cycles = 0;
+ int ret = 0;
+ int i;
+
+ sg[0].page = virt_to_page(p);
+ sg[0].offset = offset_in_page(p);
+ sg[0].length = blen;
+
+ local_bh_disable();
+ local_irq_disable();
+
+ /* Warm-up run. */
+ for (i = 0; i < 4; i++) {
+ if (enc)
+ ret = crypto_cipher_encrypt(tfm, sg, sg, blen);
+ else
+ ret = crypto_cipher_decrypt(tfm, 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_cipher_encrypt(tfm, sg, sg, blen);
+ else
+ ret = crypto_cipher_decrypt(tfm, 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 void test_cipher_speed(char *algo, int mode, int enc, unsigned int sec,
+ struct cipher_testvec *template,
+ unsigned int tcount, struct cipher_speed *speed)
+{
+ unsigned int ret, i, j, iv_len;
+ unsigned char *key, *p, iv[128];
+ struct crypto_tfm *tfm;
+ const char *e, *m;
+
+ if (enc == ENCRYPT)
+ e = "encryption";
+ else
+ e = "decryption";
+ if (mode == MODE_ECB)
+ m = "ECB";
+ else
+ m = "CBC";
+
+ printk("\ntesting speed of %s %s %s\n", algo, m, e);
+
+ if (mode)
+ tfm = crypto_alloc_tfm(algo, 0);
+ else
+ tfm = crypto_alloc_tfm(algo, CRYPTO_TFM_MODE_CBC);
+
+ if (tfm == NULL) {
+ printk("failed to load transform for %s %s\n", algo, m);
+ return;
+ }
+
+ for (i = 0; speed[i].klen != 0; i++) {
+ if ((speed[i].blen + speed[i].klen) > TVMEMSIZE) {
+ printk("template (%u) too big for tvmem (%u)\n",
+ speed[i].blen + speed[i].klen, TVMEMSIZE);
+ goto out;
+ }
+
+ printk("test %u (%d bit key, %d byte blocks): ", i,
+ speed[i].klen * 8, speed[i].blen);
+
+ memset(tvmem, 0xff, speed[i].klen + speed[i].blen);
+
+ /* set key, plain text and IV */
+ key = (unsigned char *)tvmem;
+ for (j = 0; j < tcount; j++) {
+ if (template[j].klen == speed[i].klen) {
+ key = template[j].key;
+ break;
+ }
+ }
+ p = (unsigned char *)tvmem + speed[i].klen;
+
+ ret = crypto_cipher_setkey(tfm, key, speed[i].klen);
+ if (ret) {
+ printk("setkey() failed flags=%x\n", tfm->crt_flags);
+ goto out;
+ }
+
+ if (!mode) {
+ iv_len = crypto_tfm_alg_ivsize(tfm);
+ memset(&iv, 0xff, iv_len);
+ crypto_cipher_set_iv(tfm, iv, iv_len);
+ }
+
+ if (sec)
+ ret = test_cipher_jiffies(tfm, enc, p, speed[i].blen,
+ sec);
+ else
+ ret = test_cipher_cycles(tfm, enc, p, speed[i].blen);
+
+ if (ret) {
+ printk("%s() failed flags=%x\n", e, tfm->crt_flags);
+ break;
+ }
+ }
+
+out:
+ crypto_free_tfm(tfm);
+}
+
static void test_deflate(void)
{
unsigned int i;
#endif
+ case 200:
+ test_cipher_speed("aes", MODE_ECB, ENCRYPT, sec, NULL, 0,
+ aes_speed_template);
+ test_cipher_speed("aes", MODE_ECB, DECRYPT, sec, NULL, 0,
+ aes_speed_template);
+ test_cipher_speed("aes", MODE_CBC, ENCRYPT, sec, NULL, 0,
+ aes_speed_template);
+ test_cipher_speed("aes", MODE_CBC, DECRYPT, sec, NULL, 0,
+ aes_speed_template);
+ break;
+
+ case 201:
+ test_cipher_speed("des3_ede", MODE_ECB, ENCRYPT, sec,
+ des3_ede_enc_tv_template,
+ DES3_EDE_ENC_TEST_VECTORS,
+ des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_ECB, DECRYPT, sec,
+ des3_ede_dec_tv_template,
+ DES3_EDE_DEC_TEST_VECTORS,
+ des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_CBC, ENCRYPT, sec,
+ des3_ede_enc_tv_template,
+ DES3_EDE_ENC_TEST_VECTORS,
+ des3_ede_speed_template);
+ test_cipher_speed("des3_ede", MODE_CBC, DECRYPT, sec,
+ des3_ede_dec_tv_template,
+ DES3_EDE_DEC_TEST_VECTORS,
+ des3_ede_speed_template);
+ break;
+
+ case 202:
+ test_cipher_speed("twofish", MODE_ECB, ENCRYPT, sec, NULL, 0,
+ twofish_speed_template);
+ test_cipher_speed("twofish", MODE_ECB, DECRYPT, sec, NULL, 0,
+ twofish_speed_template);
+ test_cipher_speed("twofish", MODE_CBC, ENCRYPT, sec, NULL, 0,
+ twofish_speed_template);
+ test_cipher_speed("twofish", MODE_CBC, DECRYPT, sec, NULL, 0,
+ twofish_speed_template);
+ break;
+
+ case 203:
+ test_cipher_speed("blowfish", MODE_ECB, ENCRYPT, sec, NULL, 0,
+ blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_ECB, DECRYPT, sec, NULL, 0,
+ blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_CBC, ENCRYPT, sec, NULL, 0,
+ blowfish_speed_template);
+ test_cipher_speed("blowfish", MODE_CBC, DECRYPT, sec, NULL, 0,
+ blowfish_speed_template);
+ break;
+
+ case 204:
+ test_cipher_speed("des", MODE_ECB, ENCRYPT, sec, NULL, 0,
+ des_speed_template);
+ test_cipher_speed("des", MODE_ECB, DECRYPT, sec, NULL, 0,
+ des_speed_template);
+ test_cipher_speed("des", MODE_CBC, ENCRYPT, sec, NULL, 0,
+ des_speed_template);
+ test_cipher_speed("des", MODE_CBC, DECRYPT, sec, NULL, 0,
+ des_speed_template);
+ break;
+
case 1000:
test_available();
break;
module_exit(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");
git.openpandora.org / pandora-kernel.git / blobdiff