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/**********************************************************************
Copyright(c) 2011-2015 Intel Corporation All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**********************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include "crc.h"
#include "types.h"
#include "crc_ref.h"
#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif
#define MAX_BUF 4096
#define TEST_SIZE 20
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
uint16_t crc16_t10dif_ref(uint16_t seed, uint8_t * buf, uint64_t len);
void rand_buffer(unsigned char *buf, long buffer_size)
{
long i;
for (i = 0; i < buffer_size; i++)
buf[i] = rand();
}
int main(int argc, char *argv[])
{
int fail = 0;
u32 r = 0;
int verbose = argc - 1;
int i, s;
void *buf_raw;
unsigned char *buf;
printf("Test crc16_t10dif_test ");
if (posix_memalign(&buf_raw, 32, MAX_BUF * TEST_SIZE)) {
printf("alloc error: Fail");
return -1;
}
buf = (unsigned char *)buf_raw;
srand(TEST_SEED);
// Test of all zeros
memset(buf, 0, MAX_BUF * 10);
u16 crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF);
u16 crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
u16 crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
if ((crc_base != crc_ref) || (crc != crc_ref)) {
fail++;
printf("\n opt ref\n");
printf(" ------ ------\n");
printf("crc zero = 0x%4x 0x%4x 0x%4x \n", crc_ref, crc_base, crc);
} else
printf(".");
// Another simple test pattern
memset(buf, 0x8a, MAX_BUF);
crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF);
crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
if ((crc_base != crc_ref) || (crc != crc_ref)) {
fail++;
printf("crc all 8a = 0x%4x 0x%4x 0x%4x\n", crc_ref, crc_base, crc);
} else
printf(".");
// Do a few random tests
rand_buffer(buf, MAX_BUF * TEST_SIZE);
for (i = 0; i < TEST_SIZE; i++) {
crc_ref = crc16_t10dif_ref(TEST_SEED, buf, MAX_BUF);
crc_base = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
if ((crc_base != crc_ref) || (crc != crc_ref))
fail++;
if (verbose)
printf("crc rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref, crc_base, crc);
else if (i % (TEST_SIZE / 8) == 0)
printf(".");
buf += MAX_BUF;
}
// Do a few random sizes
buf = (unsigned char *)buf_raw; //reset buf
r = rand();
for (i = MAX_BUF; i >= 0; i--) {
crc_ref = crc16_t10dif_ref(r, buf, i);
crc_base = crc16_t10dif_base(r, buf, i);
crc = crc16_t10dif(r, buf, i);
if ((crc_base != crc_ref) || (crc != crc_ref)) {
fail++;
printf("fail random size%i 0x%8x 0x%8x 0x%8x\n", i, crc_ref, crc_base,
crc);
} else if (i % (MAX_BUF / 8) == 0)
printf(".");
}
// Try different seeds
for (s = 0; s < 20; s++) {
buf = (unsigned char *)buf_raw; //reset buf
r = rand(); // just to get a new seed
rand_buffer(buf, MAX_BUF * TEST_SIZE); // new pseudo-rand data
if (verbose)
printf("seed = 0x%x\n", r);
for (i = 0; i < TEST_SIZE; i++) {
crc_ref = crc16_t10dif_ref(r, buf, MAX_BUF);
crc_base = crc16_t10dif_base(r, buf, MAX_BUF);
crc = crc16_t10dif(r, buf, MAX_BUF);
if ((crc_base != crc_ref) || (crc != crc_ref))
fail++;
if (verbose)
printf("crc rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref,
crc_base, crc);
else if (i % (TEST_SIZE * 20 / 8) == 0)
printf(".");
buf += MAX_BUF;
}
}
// Run tests at end of buffer
buf = (unsigned char *)buf_raw; //reset buf
buf = buf + ((MAX_BUF - 1) * TEST_SIZE); //Line up TEST_SIZE from end
for (i = 0; i < TEST_SIZE; i++) {
crc_ref = crc16_t10dif_ref(TEST_SEED, buf + i, TEST_SIZE - i);
crc_base = crc16_t10dif_base(TEST_SEED, buf + i, TEST_SIZE - i);
crc = crc16_t10dif(TEST_SEED, buf + i, TEST_SIZE - i);
if ((crc_base != crc_ref) || (crc != crc_ref))
fail++;
if (verbose)
printf("crc eob rand%3d = 0x%4x 0x%4x 0x%4x\n", i, crc_ref, crc_base,
crc);
else
printf(".");
}
printf("Test done: %s\n", fail ? "Fail" : "Pass");
if (fail)
printf("\nFailed %d tests\n", fail);
return fail;
}
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