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168 lines
4.7 KiB
C
168 lines
4.7 KiB
C
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/**********************************************************************
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Copyright(c) 2011-2015 Intel Corporation All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**********************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "crc.h"
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#include "types.h"
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#ifndef TEST_SEED
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# define TEST_SEED 0x1234
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#endif
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#define MAX_BUF 512
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#define TEST_SIZE 20
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef uint8_t u8;
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void rand_buffer(unsigned char *buf, long buffer_size)
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{
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long i;
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for (i = 0; i < buffer_size; i++)
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buf[i] = rand();
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}
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int main(int argc, char *argv[])
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{
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int fail = 0;
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u32 r = 0;
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int verbose = argc - 1;
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int i, s;
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void *buf_raw;
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unsigned char *buf;
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printf("Test crc16_t10dif_test ");
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if (posix_memalign(&buf_raw, MAX_BUF, MAX_BUF * TEST_SIZE)) {
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printf("alloc error: Fail");
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return -1;
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}
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buf = (unsigned char *)buf_raw;
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srand(TEST_SEED);
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// Test of all zeros
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memset(buf, 0, MAX_BUF * 10);
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u16 crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
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u16 crc_ref = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
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if (crc != crc_ref) {
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fail++;
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printf("\n opt ref\n");
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printf(" ------ ------\n");
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printf("crc zero = 0x%4x 0x%4x \n", crc, crc_ref);
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} else
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printf(".");
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// Another simple test pattern
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memset(buf, 0x8a, MAX_BUF);
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crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
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crc_ref = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
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if (crc != crc_ref) {
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fail++;
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printf("crc all 8a = 0x%4x 0x%4x\n", crc, crc_ref);
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} else
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printf(".");
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// Do a few random tests
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rand_buffer(buf, MAX_BUF * TEST_SIZE);
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for (i = 0; i < TEST_SIZE; i++) {
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crc = crc16_t10dif(TEST_SEED, buf, MAX_BUF);
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crc_ref = crc16_t10dif_base(TEST_SEED, buf, MAX_BUF);
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if (crc != crc_ref)
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fail++;
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if (verbose)
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printf("crc rand%3d = 0x%4x 0x%4x\n", i, crc, crc_ref);
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else
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printf(".");
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buf += MAX_BUF;
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}
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// Do a few random sizes
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buf = (unsigned char *)buf_raw; //reset buf
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r = rand();
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for (i = MAX_BUF; i >= 0; i--) {
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crc = crc16_t10dif(r, buf, i);
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crc_ref = crc16_t10dif_base(r, buf, i);
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if (crc != crc_ref) {
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fail++;
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printf("fail random size%i 0x%8x 0x%8x\n", i, crc, crc_ref);
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} else
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printf(".");
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}
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// Try different seeds
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for (s = 0; s < 20; s++) {
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buf = (unsigned char *)buf_raw; //reset buf
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r = rand(); // just to get a new seed
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rand_buffer(buf, MAX_BUF * TEST_SIZE); // new pseudo-rand data
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if (verbose)
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printf("seed = 0x%x\n", r);
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for (i = 0; i < TEST_SIZE; i++) {
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crc = crc16_t10dif(r, buf, MAX_BUF);
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crc_ref = crc16_t10dif_base(r, buf, MAX_BUF);
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if (crc != crc_ref)
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fail++;
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if (verbose)
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printf("crc rand%3d = 0x%4x 0x%4x\n", i, crc, crc_ref);
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else
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printf(".");
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buf += MAX_BUF;
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}
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}
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// Run tests at end of buffer
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buf = (unsigned char *)buf_raw; //reset buf
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buf = buf + ((MAX_BUF - 1) * TEST_SIZE); //Line up TEST_SIZE from end
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for (i = 0; i < TEST_SIZE; i++) {
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crc = crc16_t10dif(TEST_SEED, buf + i, TEST_SIZE - i);
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crc_ref = crc16_t10dif_base(TEST_SEED, buf + i, TEST_SIZE - i);
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if (crc != crc_ref)
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fail++;
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if (verbose)
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printf("crc eob rand%3d = 0x%4x 0x%4x\n", i, crc, crc_ref);
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else
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printf(".");
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}
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printf("Test done: %s\n", fail ? "Fail" : "Pass");
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if (fail)
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printf("\nFailed %d tests\n", fail);
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return fail;
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}
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