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freeswitch/libs/spandsp/tests/t38_core_tests.c
T
Steve Underwood 365fc08719 Changed spandsp from using TRUE and FALSE to using C99 true and false. It seems 
like the quirks we used to get using those with C++ have gone away.
2013-08-08 21:40:28 +08:00

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/*
* SpanDSP - a series of DSP components for telephony
*
* t38_core_tests.c - Tests for the T.38 FoIP core module.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2007 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*! \file */
/*! \page t38_core_tests_page T.38 core tests
\section t38_core_tests_page_sec_1 What does it do?
These tests exercise the T.38 core ASN.1 processing code.
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#if !defined(WIN32)
#include <unistd.h>
#endif
#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
#include "spandsp.h"
#define MAX_FIELDS 42
#define MAX_FIELD_LEN 8192
static bool succeeded = true;
static int t38_version;
static int ok_indicator_packets;
static int bad_indicator_packets;
static int ok_data_packets;
static int bad_data_packets;
static int missing_packets;
static int skip;
static uint8_t field_body[MAX_FIELDS][MAX_FIELD_LEN];
static int field_len[MAX_FIELDS];
static int seq_no;
static int msg_list[1000000];
static int msg_list_ptr;
static int msg_list_ptr2;
static uint8_t concat[1000000];
static int concat_len;
static int rx_missing_attack_handler(t38_core_state_t *s, void *user_data, int rx_seq_no, int expected_seq_no)
{
//printf("Hit missing\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
static int rx_indicator_attack_handler(t38_core_state_t *s, void *user_data, int indicator)
{
//printf("Hit indicator %d\n", indicator);
return 0;
}
/*- End of function --------------------------------------------------------*/
static int rx_data_attack_handler(t38_core_state_t *s, void *user_data, int data_type, int field_type, const uint8_t *buf, int len)
{
//printf("Hit data %d, field %d\n", data_type, field_type);
return 0;
}
/*- End of function --------------------------------------------------------*/
static int rx_missing_handler(t38_core_state_t *s, void *user_data, int rx_seq_no, int expected_seq_no)
{
missing_packets++;
//printf("Hit missing\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
static int rx_indicator_handler(t38_core_state_t *s, void *user_data, int indicator)
{
if (indicator == msg_list[msg_list_ptr2++])
ok_indicator_packets++;
else
bad_indicator_packets++;
//printf("Hit indicator %d\n", indicator);
return 0;
}
/*- End of function --------------------------------------------------------*/
static int rx_data_handler(t38_core_state_t *s, void *user_data, int data_type, int field_type, const uint8_t *buf, int len)
{
if (data_type == msg_list[msg_list_ptr2] && field_type == msg_list[msg_list_ptr2 + 1])
ok_data_packets++;
else
bad_data_packets++;
msg_list_ptr2 += 2;
//printf("Hit data %d, field %d\n", data_type, field_type);
return 0;
}
/*- End of function --------------------------------------------------------*/
static int tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
t38_core_state_t *t;
t = (t38_core_state_t *) user_data;
span_log(t38_core_get_logging_state(s), SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
if (t38_core_rx_ifp_packet(t, buf, len, seq_no) < 0)
succeeded = false;
seq_no++;
return 0;
}
/*- End of function --------------------------------------------------------*/
static int tx_concat_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
span_log(t38_core_get_logging_state(s), SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
memcpy(&concat[concat_len], buf, len);
concat_len += len;
seq_no++;
return 0;
}
/*- End of function --------------------------------------------------------*/
static int encode_decode_tests(t38_core_state_t *a, t38_core_state_t *b)
{
t38_data_field_t field[MAX_FIELDS];
int i;
int j;
ok_indicator_packets = 0;
bad_indicator_packets = 0;
ok_data_packets = 0;
bad_data_packets = 0;
missing_packets = 0;
msg_list_ptr = 0;
msg_list_ptr2 = 0;
/* Try all the indicator types */
for (i = 0; i < 100; i++)
{
msg_list[msg_list_ptr++] = i;
if (t38_core_send_indicator(a, i) < 0)
{
msg_list_ptr--;
break;
}
}
/* Try all the data types, as single field messages with no data */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
skip = 99;
if (t38_core_send_data(a, i, j, (uint8_t *) "", 0, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 2;
break;
}
}
if (j == 0)
break;
}
/* Try all the data types and field types, as single field messages with data */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
skip = 99;
if (t38_core_send_data(a, i, j, (uint8_t *) "ABCD", 4, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 2;
break;
}
}
if (j == 0)
break;
}
/* Try all the data types and field types, as multi-field messages, but with 0 fields */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
skip = 1;
if (t38_core_send_data_multi_field(a, i, field, 0, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
break;
}
if (j == 0)
break;
}
/* Try all the data types and field types, as multi-field messages */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = T38_FIELD_T4_NON_ECM_SIG_END;
skip = 1;
field_len[0] = 444;
field_len[1] = 333;
field[0].field_type = j;
field[0].field = field_body[0];
field[0].field_len = field_len[0];
field[1].field_type = T38_FIELD_T4_NON_ECM_SIG_END;
field[1].field = field_body[1];
field[1].field_len = field_len[1];
if (t38_core_send_data_multi_field(a, i, field, 2, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 4;
break;
}
}
if (j == 0)
break;
}
printf("Indicator packets: OK = %d, bad = %d\n", ok_indicator_packets, bad_indicator_packets);
printf("Data packets: OK = %d, bad = %d\n", ok_data_packets, bad_data_packets);
printf("Missing packets = %d\n", missing_packets);
if (t38_version == 0)
{
if (ok_indicator_packets != 16 || bad_indicator_packets != 0)
{
printf("Tests failed\n");
return -1;
}
if (ok_data_packets != 288 || bad_data_packets != 0)
{
printf("Tests failed\n");
return -1;
}
}
else
{
if (ok_indicator_packets != 23 || bad_indicator_packets != 0)
{
printf("Tests failed\n");
return -1;
}
if (ok_data_packets != 720 || bad_data_packets != 0)
{
printf("Tests failed\n");
return -1;
}
}
if (missing_packets > 0)
{
printf("Tests failed\n");
return -1;
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static int encode_then_decode_tests(t38_core_state_t *a, t38_core_state_t *b)
{
t38_data_field_t field[MAX_FIELDS];
int len;
int i;
int j;
ok_indicator_packets = 0;
bad_indicator_packets = 0;
ok_data_packets = 0;
bad_data_packets = 0;
missing_packets = 0;
msg_list_ptr = 0;
msg_list_ptr2 = 0;
/* Try all the indicator types */
for (i = 0; i < 100; i++)
{
msg_list[msg_list_ptr++] = i;
if (t38_core_send_indicator(a, i) < 0)
{
msg_list_ptr--;
break;
}
}
/* Try all the data types, as single field messages with no data */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
skip = 99;
if (t38_core_send_data(a, i, j, (uint8_t *) "", 0, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 2;
break;
}
}
if (j == 0)
break;
}
/* Try all the data types and field types, as single field messages with data */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
skip = 99;
if (t38_core_send_data(a, i, j, (uint8_t *) "ABCD", 4, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 2;
break;
}
}
if (j == 0)
break;
}
/* Try all the data types and field types, as multi-field messages, but with 0 fields */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
skip = 1;
if (t38_core_send_data_multi_field(a, i, field, 0, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
break;
}
if (j == 0)
break;
}
/* Try all the data types and field types, as multi-field messages */
for (i = 0; i < 100; i++)
{
for (j = 0; j < 100; j++)
{
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = j;
msg_list[msg_list_ptr++] = i;
msg_list[msg_list_ptr++] = T38_FIELD_T4_NON_ECM_SIG_END;
skip = 1;
field_len[0] = 444;
field_len[1] = 333;
field[0].field_type = j;
field[0].field = field_body[0];
field[0].field_len = field_len[0];
field[1].field_type = T38_FIELD_T4_NON_ECM_SIG_END;
field[1].field = field_body[1];
field[1].field_len = field_len[1];
if (t38_core_send_data_multi_field(a, i, field, 2, T38_PACKET_CATEGORY_CONTROL_DATA) < 0)
{
msg_list_ptr -= 4;
break;
}
}
if (j == 0)
break;
}
/* Now split up the big concatented block of IFP packets. */
for (i = 0, seq_no = 0; i < concat_len; i += len)
{
if ((len = t38_core_rx_ifp_stream(b, &concat[i], concat_len - i, seq_no)) < 0)
succeeded = false;
seq_no++;
}
printf("Indicator packets: OK = %d, bad = %d\n", ok_indicator_packets, bad_indicator_packets);
printf("Data packets: OK = %d, bad = %d\n", ok_data_packets, bad_data_packets);
printf("Missing packets = %d\n", missing_packets);
if (t38_version == 0)
{
if (ok_indicator_packets != 16 || bad_indicator_packets != 0)
{
printf("Tests failed\n");
return -1;
}
if (ok_data_packets != 288 || bad_data_packets != 0)
{
printf("Tests failed\n");
return -1;
}
}
else
{
if (ok_indicator_packets != 23 || bad_indicator_packets != 0)
{
printf("Tests failed\n");
return -1;
}
if (ok_data_packets != 720 || bad_data_packets != 0)
{
printf("Tests failed\n");
return -1;
}
}
if (missing_packets > 0)
{
printf("Tests failed\n");
return -1;
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static int attack_tests(t38_core_state_t *s, int packets)
{
int i;
int j;
int len;
uint8_t buf[1024];
int seq_no;
srand(1234567);
/* Send lots of random junk, of increasing length. Much of this will decode
as valid IFP frames, but none of it should cause trouble. */
seq_no = 0;
for (len = 1; len < 70; len++)
{
for (i = 0; i < packets; i++)
{
for (j = 0; j < len; j++)
buf[j] = (rand() >> 16) & 0xFF;
t38_core_rx_ifp_packet(s, buf, len, seq_no);
seq_no = (seq_no + 1) & 0xFFFF;
}
}
return 0;
}
/*- End of function --------------------------------------------------------*/
int main(int argc, char *argv[])
{
t38_core_state_t t38_core_ax;
t38_core_state_t t38_core_bx;
t38_core_state_t *t38_core_a;
t38_core_state_t *t38_core_b;
int attack_packets;
int opt;
attack_packets = 100000;
while ((opt = getopt(argc, argv, "a:")) != -1)
{
switch (opt)
{
case 'a':
attack_packets = atoi(optarg);
break;
default:
//usage();
exit(2);
break;
}
}
/* Tests in UDP type mode, for UDPTL and RTP */
for (t38_version = 0; t38_version < 2; t38_version++)
{
seq_no = 0;
printf("Using T.38 version %d\n", t38_version);
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_bx,
tx_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
if ((t38_core_b = t38_core_init(&t38_core_bx,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_ax,
tx_packet_handler,
&t38_core_ax)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
t38_set_t38_version(t38_core_b, t38_version);
span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
span_log_set_level(t38_core_get_logging_state(t38_core_b), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_b), "T.38-B");
/* Encode and decode all possible frame types, one by one */
if (encode_decode_tests(t38_core_a, t38_core_b))
{
printf("Encode/decode tests failed\n");
exit(2);
}
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_attack_handler,
rx_data_attack_handler,
rx_missing_attack_handler,
&t38_core_bx,
tx_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
//span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
//span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
if (attack_tests(t38_core_a, attack_packets))
{
printf("Attack tests failed\n");
exit(2);
}
}
/* Tests in TCP without TPKT mode, like T.38 version 0 */
for (t38_version = 0; t38_version < 2; t38_version++)
{
seq_no = 0;
concat_len = 0;
printf("Using T.38 version %d\n", t38_version);
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_bx,
tx_concat_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
if ((t38_core_b = t38_core_init(&t38_core_bx,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_ax,
tx_concat_packet_handler,
&t38_core_ax)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
t38_set_t38_version(t38_core_b, t38_version);
t38_set_pace_transmission(t38_core_a, false);
t38_set_pace_transmission(t38_core_b, false);
t38_set_data_transport_protocol(t38_core_a, T38_TRANSPORT_TCP);
t38_set_data_transport_protocol(t38_core_b, T38_TRANSPORT_TCP);
span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
span_log_set_level(t38_core_get_logging_state(t38_core_b), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_b), "T.38-B");
/* Encode all possible frames types into a large block, and then decode them */
if (encode_then_decode_tests(t38_core_a, t38_core_b))
{
printf("Encode then decode tests failed\n");
exit(2);
}
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_attack_handler,
rx_data_attack_handler,
rx_missing_attack_handler,
&t38_core_bx,
tx_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
t38_set_pace_transmission(t38_core_a, false);
t38_set_data_transport_protocol(t38_core_a, T38_TRANSPORT_TCP);
//span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
//span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
if (attack_tests(t38_core_a, attack_packets))
{
printf("Attack tests failed\n");
exit(2);
}
}
/* Tests in TCP with TPKT mode, like T.38 versions >0 */
for (t38_version = 0; t38_version < 2; t38_version++)
{
seq_no = 0;
concat_len = 0;
printf("Using T.38 version %d\n", t38_version);
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_bx,
tx_concat_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
if ((t38_core_b = t38_core_init(&t38_core_bx,
rx_indicator_handler,
rx_data_handler,
rx_missing_handler,
&t38_core_ax,
tx_concat_packet_handler,
&t38_core_ax)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
t38_set_t38_version(t38_core_b, t38_version);
t38_set_pace_transmission(t38_core_a, false);
t38_set_pace_transmission(t38_core_b, false);
t38_set_data_transport_protocol(t38_core_a, T38_TRANSPORT_TCP_TPKT);
t38_set_data_transport_protocol(t38_core_b, T38_TRANSPORT_TCP_TPKT);
span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
span_log_set_level(t38_core_get_logging_state(t38_core_b), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
span_log_set_tag(t38_core_get_logging_state(t38_core_b), "T.38-B");
/* Encode all possible frames types into a large block, and then decode them */
if (encode_then_decode_tests(t38_core_a, t38_core_b))
{
printf("Encode then decode tests failed\n");
exit(2);
}
if ((t38_core_a = t38_core_init(&t38_core_ax,
rx_indicator_attack_handler,
rx_data_attack_handler,
rx_missing_attack_handler,
&t38_core_bx,
tx_packet_handler,
&t38_core_bx)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 core\n");
exit(2);
}
t38_set_t38_version(t38_core_a, t38_version);
t38_set_pace_transmission(t38_core_a, false);
t38_set_data_transport_protocol(t38_core_a, T38_TRANSPORT_TCP_TPKT);
//span_log_set_level(t38_core_get_logging_state(t38_core_a), SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG);
//span_log_set_tag(t38_core_get_logging_state(t38_core_a), "T.38-A");
if (attack_tests(t38_core_a, attack_packets))
{
printf("Attack tests failed\n");
exit(2);
}
}
if (!succeeded)
{
printf("Tests failed\n");
exit(2);
}
printf("Tests passed\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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