static void decode_bitstream(const char *in_file_name)
{
char buf[1024];
int bit;
int num;
hdlc_rx_state_t rx;
FILE *in;
if ((in = fopen(in_file_name, "r")) == NULL)
{
fprintf(stderr, "Failed to open '%s'\n", in_file_name);
exit(2);
}
hdlc_rx_init(&rx, FALSE, TRUE, 2, decode_handler, NULL);
while (fgets(buf, 1024, in))
{
if (sscanf(buf, "Rx bit %d - %d", &num, &bit) == 2)
{
//printf("Rx bit %d - %d\n", num, bit);
//printf("Rx bit %d\n", bit);
hdlc_rx_put_bit(&rx, bit);
}
}
fclose(in);
}
static void v27ter_put_bit(void *user_data, int bit)
{
if (bit < 0)
{
/* Special conditions */
fprintf(stderr, "V.27ter rx status is %s (%d)\n", signal_status_to_str(bit), bit);
switch (bit)
{
case SIG_STATUS_TRAINING_SUCCEEDED:
fast_trained = FAX_V27TER_RX;
t4_begin();
break;
case SIG_STATUS_CARRIER_DOWN:
t4_end();
if (fast_trained == FAX_V27TER_RX)
fast_trained = FAX_NONE;
break;
}
return;
}
if (error_correcting_mode)
{
hdlc_rx_put_bit(&hdlcrx, bit);
}
else
{
if (t4_rx_put_bit(&t4_rx_state, bit))
{
t4_end();
fprintf(stderr, "End of page detected\n");
}
}
//printf("V.27ter Rx bit %d - %d\n", rx_bits++, bit);
}
static void v21_put_bit(void *user_data, int bit)
{
if (bit < 0)
{
/* Special conditions */
fprintf(stderr, "V.21 rx status is %s (%d)\n", signal_status_to_str(bit), bit);
switch (bit)
{
case SIG_STATUS_CARRIER_DOWN:
//t4_end();
break;
}
return;
}
if (fast_trained == FAX_NONE)
hdlc_rx_put_bit(&hdlcrx, bit);
//printf("V.21 Rx bit %d - %d\n", rx_bits++, bit);
}
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_frame_length_error_handling(void)
{
int i;
int j;
int nextbyte;
printf("Testing frame length 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);
hdlc_rx_set_max_frame_len(&rx, 100);
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)
{
/* We should get a failure when the length reaches 101 */
if (ref_len == 101)
{
printf("Tests passed.\n");
return 0;
}
if (frame_failed)
printf("Frame failed.\n");
printf("Frame not received at length %d.\n", ref_len);
return -1;
}
else
{
/* We should get a failure when the length reaches 101 */
if (ref_len > 100)
{
printf("Tests failed.\n");
return -1;
}
}
ref_len++;
hdlc_tx_frame(&tx, buf, ref_len);
frame_handled = FALSE;
}
}
/* We shouldn't reach here */
printf("Tests failed.\n");
return -1;
}
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;
}