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5
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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * t38_terminal_tests.c - Tests for the T.38 FoIP terminal module.
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2005, 2006 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: t38_terminal_tests.c,v 1.32 2006/12/09 04:56:20 steveu Exp $
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26 */
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27
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28 /*! \file */
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29
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30 /*! \page t38_terminal_tests_page T.38 termination tests
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31 \section t38_terminal_tests_page_sec_1 What does it do?
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32 These tests exercise the path
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33
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34 T.38 termination <-> T.38 termination
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35 */
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36
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37 #ifdef HAVE_CONFIG_H
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38 #include <config.h>
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39 #endif
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40
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41 #include <inttypes.h>
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42 #include <stdlib.h>
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43 #include <stdio.h>
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44 #include <fcntl.h>
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45 #include <string.h>
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46 #if defined(HAVE_TGMATH_H)
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47 #include <tgmath.h>
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48 #endif
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49 #if defined(HAVE_MATH_H)
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50 #include <math.h>
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51 #endif
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52 #include <assert.h>
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53 #include <errno.h>
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54 #include <sys/socket.h>
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55 #include <netinet/in.h>
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56 #include <netinet/tcp.h>
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57 #define __USE_MISC
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58 #include <arpa/inet.h>
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59 #include <sys/select.h>
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60 #include <sys/time.h>
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61 #include <tiffio.h>
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62
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63 #include "spandsp.h"
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64
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65 #include "ip_network_model.h"
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66
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67 #define SAMPLES_PER_CHUNK 160
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68
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69 #define INPUT_FILE_NAME "../itutests/fax/itutests.tif"
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70 #define OUTPUT_FILE_NAME "t38.tif"
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71
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72 t38_terminal_state_t t38_state_a;
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73 t38_terminal_state_t t38_state_b;
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74
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75 ip_network_model_state_t *path_a_to_b;
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76 ip_network_model_state_t *path_b_to_a;
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77
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78 int done[2] = {FALSE, FALSE};
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79 int succeeded[2] = {FALSE, FALSE};
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80
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81 static void phase_b_handler(t30_state_t *s, void *user_data, int result)
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82 {
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83 int i;
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84
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85 i = (int) (intptr_t) user_data;
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86 printf("%c: Phase B handler on channel %c - (0x%X) %s\n", i, i, result, t30_frametype(result));
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87 }
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88 /*- End of function --------------------------------------------------------*/
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89
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90 static void phase_d_handler(t30_state_t *s, void *user_data, int result)
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91 {
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92 int i;
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93 t30_stats_t t;
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94 char ident[21];
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95
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96 i = (int) (intptr_t) user_data;
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97 printf("%c: Phase D handler on channel %c - (0x%X) %s\n", i, i, result, t30_frametype(result));
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98 t30_get_transfer_statistics(s, &t);
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99 printf("%c: Phase D: bit rate %d\n", i, t.bit_rate);
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100 printf("%c: Phase D: ECM %s\n", i, (t.error_correcting_mode) ? "on" : "off");
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101 printf("%c: Phase D: pages transferred %d\n", i, t.pages_transferred);
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102 printf("%c: Phase D: image size %d x %d\n", i, t.width, t.length);
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103 printf("%c: Phase D: image resolution %d x %d\n", i, t.x_resolution, t.y_resolution);
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104 printf("%c: Phase D: bad rows %d\n", i, t.bad_rows);
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105 printf("%c: Phase D: longest bad row run %d\n", i, t.longest_bad_row_run);
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106 printf("%c: Phase D: coding method %s\n", i, t4_encoding_to_str(t.encoding));
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107 printf("%c: Phase D: image size %d\n", i, t.image_size);
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108 t30_get_local_ident(s, ident);
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109 printf("%c: Phase D: local ident '%s'\n", i, ident);
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110 t30_get_far_ident(s, ident);
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111 printf("%c: Phase D: remote ident '%s'\n", i, ident);
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112 }
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113 /*- End of function --------------------------------------------------------*/
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114
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115 static void phase_e_handler(t30_state_t *s, void *user_data, int result)
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116 {
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117 int i;
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118 t30_stats_t t;
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119 char ident[21];
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120
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121 i = (int) (intptr_t) user_data;
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122 printf("%c: Phase E handler on channel %c - (%d) %s\n", i, i, result, t30_completion_code_to_str(result));
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123 t30_get_transfer_statistics(s, &t);
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124 printf("%c: Phase E: bit rate %d\n", i, t.bit_rate);
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125 printf("%c: Phase E: ECM %s\n", i, (t.error_correcting_mode) ? "on" : "off");
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126 printf("%c: Phase E: pages transferred %d\n", i, t.pages_transferred);
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127 printf("%c: Phase E: image size %d x %d\n", i, t.width, t.length);
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128 printf("%c: Phase E: image resolution %d x %d\n", i, t.x_resolution, t.y_resolution);
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129 printf("%c: Phase E: bad rows %d\n", i, t.bad_rows);
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130 printf("%c: Phase E: longest bad row run %d\n", i, t.longest_bad_row_run);
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131 printf("%c: Phase E: coding method %s\n", i, t4_encoding_to_str(t.encoding));
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132 printf("%c: Phase E: image size %d bytes\n", i, t.image_size);
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133 t30_get_local_ident(s, ident);
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134 printf("%c: Phase E: local ident '%s'\n", i, ident);
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135 t30_get_far_ident(s, ident);
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136 printf("%c: Phase E: remote ident '%s'\n", i, ident);
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137 succeeded[i - 'A'] = (result == T30_ERR_OK) && (t.pages_transferred == 12);
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138 //done[i - 'A'] = TRUE;
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139 }
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140 /*- End of function --------------------------------------------------------*/
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141
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142 static int tx_packet_handler_a(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
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143 {
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144 t38_terminal_state_t *t;
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145
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146 /* This routine queues messages between two instances of T.38 processing */
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147 t = (t38_terminal_state_t *) user_data;
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148 span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
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149
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150 ip_network_model_send(path_a_to_b, s->tx_seq_no, count, buf, len);
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151 return 0;
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152 }
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153 /*- End of function --------------------------------------------------------*/
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154
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155 static int tx_packet_handler_b(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
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156 {
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157 t38_terminal_state_t *t;
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158
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159 /* This routine queues messages between two instances of T.38 processing */
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160 t = (t38_terminal_state_t *) user_data;
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161 span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
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162
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163 ip_network_model_send(path_b_to_a, s->tx_seq_no, count, buf, len);
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164 return 0;
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165 }
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166 /*- End of function --------------------------------------------------------*/
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167
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168 int main(int argc, char *argv[])
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169 {
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170 int msg_len;
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171 uint8_t msg[1024];
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172 int t38_version;
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173 int i;
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174 int seq_no;
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175 int use_ecm;
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176 const char *input_file_name;
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177
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178 t38_version = 1;
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179 input_file_name = INPUT_FILE_NAME;
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180 use_ecm = FALSE;
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181 for (i = 1; i < argc; i++)
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182 {
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183 if (strcmp(argv[i], "-e") == 0)
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184 {
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185 use_ecm = TRUE;
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186 continue;
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187 }
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188 if (strcmp(argv[i], "-v") == 0)
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189 {
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190 i++;
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191 t38_version = atoi(argv[i]);
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192 continue;
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193 }
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194 if (strcmp(argv[i], "-i") == 0)
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195 {
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196 i++;
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197 input_file_name = argv[i];
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198 continue;
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199 }
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200 }
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201
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202 printf("Using T.38 version %d\n", t38_version);
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203 if (use_ecm)
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204 printf("Using ECM\n");
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205
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206 if ((path_a_to_b = ip_network_model_init(800, 2000, 0)) == NULL)
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207 {
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208 fprintf(stderr, "Failed to start IP network path model\n");
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209 exit(2);
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210 }
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211 if ((path_b_to_a = ip_network_model_init(800, 2000, 0)) == NULL)
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212 {
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213 fprintf(stderr, "Failed to start IP network path model\n");
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214 exit(2);
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215 }
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216
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217 if (t38_terminal_init(&t38_state_a, TRUE, tx_packet_handler_a, &t38_state_b) == NULL)
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218 {
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219 fprintf(stderr, "Cannot start the T.38 channel\n");
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220 exit(2);
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221 }
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222 t38_set_t38_version(&t38_state_a.t38, t38_version);
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223 span_log_set_level(&t38_state_a.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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224 span_log_set_tag(&t38_state_a.logging, "T.38-A");
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225 span_log_set_level(&t38_state_a.t38.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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226 span_log_set_tag(&t38_state_a.t38.logging, "T.38-A");
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227 span_log_set_level(&t38_state_a.t30_state.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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228 span_log_set_tag(&t38_state_a.t30_state.logging, "T.38-A");
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229
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230 t30_set_local_ident(&t38_state_a.t30_state, "11111111");
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231 t30_set_tx_file(&t38_state_a.t30_state, input_file_name, -1, -1);
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232 t30_set_phase_b_handler(&t38_state_a.t30_state, phase_b_handler, (void *) (intptr_t) 'A');
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233 t30_set_phase_d_handler(&t38_state_a.t30_state, phase_d_handler, (void *) (intptr_t) 'A');
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234 t30_set_phase_e_handler(&t38_state_a.t30_state, phase_e_handler, (void *) (intptr_t) 'A');
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235 t30_set_ecm_capability(&t38_state_a.t30_state, use_ecm);
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236 if (use_ecm)
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237 t30_set_supported_compressions(&t38_state_a.t30_state, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
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238
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239 if (t38_terminal_init(&t38_state_b, FALSE, tx_packet_handler_b, &t38_state_a) == NULL)
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240 {
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241 fprintf(stderr, "Cannot start the T.38 channel\n");
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242 exit(2);
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243 }
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244 t38_set_t38_version(&t38_state_b.t38, t38_version);
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245 span_log_set_level(&t38_state_b.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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246 span_log_set_tag(&t38_state_b.logging, "T.38-B");
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247 span_log_set_level(&t38_state_b.t38.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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248 span_log_set_tag(&t38_state_b.t38.logging, "T.38-B");
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249 span_log_set_level(&t38_state_b.t30_state.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
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250 span_log_set_tag(&t38_state_b.t30_state.logging, "T.38-B");
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251
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252 t30_set_local_ident(&t38_state_b.t30_state, "22222222");
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253 t30_set_rx_file(&t38_state_b.t30_state, OUTPUT_FILE_NAME, -1);
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254 t30_set_phase_b_handler(&t38_state_b.t30_state, phase_b_handler, (void *) (intptr_t) 'B');
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255 t30_set_phase_d_handler(&t38_state_b.t30_state, phase_d_handler, (void *) (intptr_t) 'B');
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256 t30_set_phase_e_handler(&t38_state_b.t30_state, phase_e_handler, (void *) (intptr_t) 'B');
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257 t30_set_ecm_capability(&t38_state_b.t30_state, use_ecm);
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258 if (use_ecm)
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259 t30_set_supported_compressions(&t38_state_b.t30_state, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
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260
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261 for (;;)
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262 {
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263 span_log_bump_samples(&t38_state_a.logging, SAMPLES_PER_CHUNK);
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264 span_log_bump_samples(&t38_state_a.t38.logging, SAMPLES_PER_CHUNK);
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265 span_log_bump_samples(&t38_state_a.t30_state.logging, SAMPLES_PER_CHUNK);
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266 span_log_bump_samples(&t38_state_b.logging, SAMPLES_PER_CHUNK);
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267 span_log_bump_samples(&t38_state_b.t38.logging, SAMPLES_PER_CHUNK);
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268 span_log_bump_samples(&t38_state_b.t30_state.logging, SAMPLES_PER_CHUNK);
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269
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270 done[0] = t38_terminal_send_timeout(&t38_state_a, SAMPLES_PER_CHUNK);
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271 done[1] = t38_terminal_send_timeout(&t38_state_b, SAMPLES_PER_CHUNK);
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272
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273 while ((msg_len = ip_network_model_get(path_a_to_b, SAMPLES_PER_CHUNK, msg, 1024, &seq_no)) >= 0)
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274 t38_core_rx_ifp_packet(&t38_state_b.t38, seq_no, msg, msg_len);
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275 while ((msg_len = ip_network_model_get(path_b_to_a, SAMPLES_PER_CHUNK, msg, 1024, &seq_no)) >= 0)
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276 t38_core_rx_ifp_packet(&t38_state_a.t38, seq_no, msg, msg_len);
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277
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278 if (done[0] && done[1])
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279 break;
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280 }
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281 if (!succeeded[0] || !succeeded[1])
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282 {
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283 printf("Tests failed\n");
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284 exit(2);
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285 }
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286 printf("Tests passed\n");
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287 return 0;
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288 }
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289 /*- End of function --------------------------------------------------------*/
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290 /*- End of file ------------------------------------------------------------*/
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