int main(int argc, char *argv[])
{
int i;
int j;
int len;
uint16_t crc16a;
uint16_t crc16b;
printf("CRC module tests\n");
/* TODO: This doesn't check every function in the module */
/* Try a few random messages through the CRC logic. */
printf("Testing the CRC-16 routines\n");
for (i = 0; i < 100; i++)
{
ref_len = cook_up_msg(buf);
len = crc_itu16_append(buf, ref_len);
if (!crc_itu16_check(buf, len))
{
printf("CRC-16 failure\n");
exit(2);
}
}
printf("Test passed.\n\n");
printf("Testing the CRC-16 byte by byte and bit by bit routines\n");
for (i = 0; i < 100; i++)
{
ref_len = cook_up_msg(buf);
crc16a = 0xFFFF;
crc16a = crc_itu16_calc(buf, ref_len, crc16a);
crc16b = 0xFFFF;
for (j = 0; j < ref_len; j++)
crc16b = crc_itu16_bits(buf[j], 8, crc16b);
if (crc16a != crc16b)
{
printf("CRC-16 failure\n");
exit(2);
}
}
printf("Test passed.\n\n");
printf("Testing the CRC-32 routines\n");
for (i = 0; i < 100; i++)
{
ref_len = cook_up_msg(buf);
len = crc_itu32_append(buf, ref_len);
if (!crc_itu32_check(buf, len))
{
printf("CRC-32 failure\n");
exit(2);
}
}
printf("Test passed.\n");
return 0;
}
int main(int argc, char *argv[])
{
int i;
int len;
printf("HDLC module tests\n");
/* TODO: This doesn't check every function in the module */
/* Try a few random messages through the CRC logic. */
printf("Testing the CRC-16 routines\n");
for (i = 0; i < 100; i++)
{
ref_len = cook_up_msg(buf);
len = crc_itu16_append(buf, ref_len);
if (!crc_itu16_check(buf, len))
{
printf("CRC-16 failure\n");
exit(2);
}
}
printf("Test passed.\n\n");
printf("Testing the CRC-32 routines\n");
for (i = 0; i < 100; i++)
{
ref_len = cook_up_msg(buf);
len = crc_itu32_append(buf, ref_len);
if (!crc_itu32_check(buf, len))
{
printf("CRC-32 failure\n");
exit(2);
}
}
printf("Test passed.\n");
return 0;
}
static int test_hdlc_octet_count_handling(void)
{
int i;
int j;
int nextbyte;
printf("Testing the octet_counting handling using CRC-16 (bit by bit)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, FALSE, 2, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, FALSE, TRUE, 0, frame_handler, NULL);
//hdlc_rx_set_max_frame_len(&rx, 50);
hdlc_rx_set_octet_counting_report_interval(&rx, 16);
underflow_reported = FALSE;
framing_ok_reported = FALSE;
framing_ok_reports = 0;
hdlc_tx_flags(&tx, 10);
/* Don't push an initial message so we should get an underflow after the preamble. */
/* Lie for the first message, as there isn't really one */
frame_handled = TRUE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
ref_len = 0;
for (i = 0; i < 8*1000000; i++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
if (framing_ok_reported)
{
printf("Framing OK reported at bit %d (%d)\n", i, framing_ok_reports);
framing_ok_reported = FALSE;
}
if (underflow_reported)
{
underflow_reported = FALSE;
for (j = 0; j < 20; j++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
if (framing_ok_reported)
{
printf("Framing OK reported at bit %d (%d) - %d\n", i, framing_ok_reports, frame_handled);
framing_ok_reported = FALSE;
}
}
if (ref_len)
{
frames_sent++;
bytes_sent += ref_len;
}
if (!frame_handled)
{
if (frame_failed)
printf("Frame failed.\n");
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
hdlc_tx_abort(&tx);
//hdlc_tx_corrupt_frame(&tx);
frame_handled = FALSE;
}
}
printf("Tests passed.\n");
return 0;
}
static int test_hdlc_crc_error_handling(void)
{
int i;
int j;
int nextbyte;
int corrupt;
printf("Testing CRC error handling using CRC-16 (bit by bit)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, FALSE, 2, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, FALSE, TRUE, 5, frame_handler, NULL);
underflow_reported = FALSE;
framing_ok_reported = FALSE;
framing_ok_reports = 0;
hdlc_tx_flags(&tx, 10);
/* Don't push an initial message so we should get an underflow after the preamble. */
/* Lie for the first message, as there isn't really one */
frame_handled = TRUE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
ref_len = 100;
corrupt = FALSE;
for (i = 0; i < 8*1000000; i++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
if (framing_ok_reported)
{
printf("Framing OK reported at bit %d (%d)\n", i, framing_ok_reports);
framing_ok_reported = FALSE;
}
if (underflow_reported)
{
underflow_reported = FALSE;
for (j = 0; j < 20; j++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
if (framing_ok_reported)
{
printf("Framing OK reported at bit %d (%d) - %d\n", i, framing_ok_reports, frame_handled);
framing_ok_reported = FALSE;
}
}
if (ref_len)
{
frames_sent++;
bytes_sent += ref_len;
}
if (!frame_handled)
{
if (!corrupt)
{
printf("Frame not received when it should be correct.\n");
return -1;
}
}
else
{
if (corrupt)
{
printf("Frame received when it should be corrupt.\n");
return -1;
}
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
if ((corrupt = rand() & 1))
hdlc_tx_corrupt_frame(&tx);
frame_handled = FALSE;
}
}
printf("Tests passed.\n");
return 0;
}
static int test_hdlc_modes(void)
{
int i;
int j;
int len;
int nextbyte;
int progress;
int progress_delay;
uint8_t bufx[100];
/* Try sending HDLC messages with CRC-16 */
printf("Testing with CRC-16 (byte by byte)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, FALSE, 1, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, FALSE, FALSE, 5, frame_handler, NULL);
underflow_reported = FALSE;
start = rdtscll();
hdlc_tx_flags(&tx, 40);
/* Push an initial message so we should NOT get an underflow after the preamble. */
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
for (i = 0; i < 1000000; i++)
{
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
if (underflow_reported)
{
underflow_reported = FALSE;
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
frames_sent++;
bytes_sent += ref_len;
if (!frame_handled)
{
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
}
}
end = rdtscll();
check_result();
/* Now try sending HDLC messages with CRC-16 */
printf("Testing with CRC-16 (chunk by chunk)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, FALSE, 1, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, FALSE, FALSE, 5, frame_handler, NULL);
underflow_reported = FALSE;
start = rdtscll();
hdlc_tx_flags(&tx, 40);
/* Push an initial message so we should NOT get an underflow after the preamble. */
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
for (i = 0; i < 10000; i++)
{
len = hdlc_tx_get(&tx, bufx, 100);
hdlc_rx_put(&rx, bufx, len);
if (underflow_reported)
{
underflow_reported = FALSE;
len = hdlc_tx_get(&tx, bufx, 100);
hdlc_rx_put(&rx, bufx, len);
frames_sent++;
bytes_sent += ref_len;
if (!frame_handled)
{
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
}
}
end = rdtscll();
check_result();
/* Now try sending HDLC messages with CRC-16 bit by bit */
printf("Testing with CRC-16 (bit by bit)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, FALSE, 2, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, FALSE, FALSE, 5, frame_handler, NULL);
underflow_reported = FALSE;
start = rdtscll();
hdlc_tx_flags(&tx, 40);
/* Don't push an initial message so we should get an underflow after the preamble. */
/* Lie for the first message, as there isn't really one */
frame_handled = TRUE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
ref_len = 0;
for (i = 0; i < 8*1000000; i++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
if (underflow_reported)
{
underflow_reported = FALSE;
for (j = 0; j < 20; j++)
{
nextbyte = hdlc_tx_get_bit(&tx);
hdlc_rx_put_bit(&rx, nextbyte);
}
if (ref_len)
{
frames_sent++;
bytes_sent += ref_len;
}
if (!frame_handled)
{
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
}
}
end = rdtscll();
check_result();
/* Now try sending HDLC messages with CRC-32 */
printf("Testing with CRC-32 (byte by byte)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, TRUE, 1, FALSE, underflow_handler, NULL);
hdlc_rx_init(&rx, TRUE, FALSE, 1, frame_handler, NULL);
underflow_reported = FALSE;
start = rdtscll();
hdlc_tx_flags(&tx, 40);
/* Don't push an initial message so we should get an underflow after the preamble. */
/* Lie for the first message, as there isn't really one */
frame_handled = TRUE;
frame_failed = FALSE;
frames_sent = 0;
bytes_sent = 0;
ref_len = 0;
for (i = 0; i < 1000000; i++)
{
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
if (underflow_reported)
{
underflow_reported = FALSE;
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
if (ref_len)
{
frames_sent++;
bytes_sent += ref_len;
}
if (!frame_handled)
{
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
}
}
end = rdtscll();
check_result();
/* Now try progressive mode with CRC-16 */
printf("Testing progressive mode with CRC-16 (byte by byte)\n");
frame_len_errors = 0;
frame_data_errors = 0;
hdlc_tx_init(&tx, TRUE, 1, TRUE, underflow_handler, NULL);
hdlc_rx_init(&rx, TRUE, FALSE, 1, frame_handler, NULL);
underflow_reported = FALSE;
start = rdtscll();
hdlc_tx_flags(&tx, 40);
/* Don't push an initial message so we should get an underflow after the preamble. */
/* Lie for the first message, as there isn't really one */
frame_handled = TRUE;
frame_failed = FALSE;
progress = 9999;
progress_delay = 9999;
frames_sent = 0;
bytes_sent = 0;
ref_len = 0;
for (i = 0; i < 1000000; i++)
{
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
if (underflow_reported)
{
underflow_reported = FALSE;
nextbyte = hdlc_tx_get_byte(&tx);
hdlc_rx_put_byte(&rx, nextbyte);
if (ref_len)
{
frames_sent++;
bytes_sent += ref_len;
}
if (!frame_handled)
{
printf("Frame not received.\n");
return -1;
}
ref_len = cook_up_msg(buf);
hdlc_tx_frame(&tx, buf, 10);
progress = 10;
progress_delay = 8;
frame_handled = FALSE;
}
if (progress < ref_len && progress_delay-- <= 0)
{
if (hdlc_tx_frame(&tx, buf + progress, (progress + 10 <= ref_len) ? 10 : ref_len - progress) < 0)
{
printf("Failed to add progressively\n");
return -1;
}
progress += 10;
progress_delay = 8;
}
}
end = rdtscll();
check_result();
printf("Tests passed.\n");
return 0;
}
