FreeCalypso > hg > themwi-system-sw

annotate sip-out/mncc_sig_out.c @ 275:def9f6e4f49e default tip

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doc/Use-outside-USA: Fake-NANP-numbers article is here
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 Nov 2023 21:49:19 -0800
parents e54b0a9e322f
children
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1 /*
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2 * In this module we implement functions that send MNCC messages
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3 * to OsmoMSC via themwi-mncc, to be called by SIP and TMGW events.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/socket.h>
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8 #include <sys/time.h>
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9 #include <netinet/in.h>
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10 #include <stdio.h>
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11 #include <stdint.h>
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12 #include <stdlib.h>
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13 #include <string.h>
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14 #include <strings.h>
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15 #include <syslog.h>
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16 #include "../include/mncc.h"
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17 #include "../include/gsm48_const.h"
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18 #include "../include/out_routes.h"
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19 #include "call.h"
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20
154
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21 void
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22 mncc_signal_alerting(call)
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23 struct call *call;
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24 {
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25 struct gsm_mncc msg;
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26
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27 if (call->mncc_state == MNCC_STATE_ALERTING)
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28 return;
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29 bzero(&msg, sizeof(struct gsm_mncc));
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30 msg.msg_type = MNCC_ALERT_REQ;
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31 msg.callref = call->mncc_callref;
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32 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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33 call->mncc_state = MNCC_STATE_ALERTING;
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34 }
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35
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36 void
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37 mncc_signal_ibt_ring(call)
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38 struct call *call;
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39 {
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40 struct gsm_mncc msg;
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41
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42 bzero(&msg, sizeof(struct gsm_mncc));
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43 if (call->overall_state == OVERALL_STATE_RINGING &&
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44 call->mncc_state != MNCC_STATE_ALERTING) {
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45 msg.msg_type = MNCC_ALERT_REQ;
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46 call->mncc_state = MNCC_STATE_ALERTING;
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47 } else
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48 msg.msg_type = MNCC_PROGRESS_REQ;
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49 msg.callref = call->mncc_callref;
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50 msg.fields |= MNCC_F_PROGRESS;
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51 msg.progress.coding = GSM48_CAUSE_CODING_GSM;
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52 msg.progress.location = GSM48_CAUSE_LOC_NET_BEYOND;
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53 msg.progress.descr = GSM48_PROGR_IN_BAND_AVAIL;
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54 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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55 }
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56
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57 void
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58 mncc_signal_answer_sup(call)
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59 struct call *call;
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60 {
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61 struct gsm_mncc msg;
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62
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63 bzero(&msg, sizeof(struct gsm_mncc));
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64 msg.msg_type = MNCC_SETUP_RSP;
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65 msg.callref = call->mncc_callref;
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66 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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67 call->mncc_state = MNCC_STATE_CONNECTED;
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68 }
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69
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70 void
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71 mncc_dtmf_start_ok(call)
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72 struct call *call;
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73 {
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74 struct gsm_mncc msg;
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75
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76 bzero(&msg, sizeof(struct gsm_mncc));
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77 msg.msg_type = MNCC_START_DTMF_RSP;
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78 msg.callref = call->mncc_callref;
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79 msg.fields |= MNCC_F_KEYPAD;
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80 msg.keypad = call->dtmf_digit;
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81 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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82 }
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83
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84 void
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85 mncc_dtmf_start_err(call)
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86 struct call *call;
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87 {
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88 struct gsm_mncc msg;
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89
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90 bzero(&msg, sizeof(struct gsm_mncc));
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91 msg.msg_type = MNCC_START_DTMF_REJ;
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92 msg.callref = call->mncc_callref;
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93 mncc_set_cause(&msg, GSM48_CAUSE_LOC_PRN_S_LU,
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94 GSM48_CC_CAUSE_PROTO_ERR);
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95 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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96 }
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97
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98 void
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99 mncc_dtmf_stop_ok(call)
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100 struct call *call;
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101 {
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102 struct gsm_mncc msg;
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103
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104 bzero(&msg, sizeof(struct gsm_mncc));
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105 msg.msg_type = MNCC_STOP_DTMF_RSP;
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106 msg.callref = call->mncc_callref;
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107 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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108 }
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109
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110 void
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111 mncc_send_hold_ack(call)
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112 struct call *call;
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113 {
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114 struct gsm_mncc msg;
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115
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116 bzero(&msg, sizeof(struct gsm_mncc));
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117 msg.msg_type = MNCC_HOLD_CNF;
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118 msg.callref = call->mncc_callref;
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119 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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120 }
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121
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122 void
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123 mncc_send_retrieve_ack(call)
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124 struct call *call;
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125 {
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126 struct gsm_mncc msg;
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127
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128 bzero(&msg, sizeof(struct gsm_mncc));
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129 msg.msg_type = MNCC_RETRIEVE_CNF;
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130 msg.callref = call->mncc_callref;
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131 send_mncc_to_sock(call->mncc, &msg, sizeof(struct gsm_mncc));
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132 }
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133
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134 void
140
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135 send_rtp_connect(call)
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136 struct call *call;
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137 {
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138 struct gsm_mncc_rtp rtp;
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139
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140 bzero(&rtp, sizeof(struct gsm_mncc_rtp));
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141 rtp.msg_type = MNCC_RTP_CONNECT;
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142 rtp.callref = call->mncc_callref;
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143 bcopy(&call->gsm_rtp_tmgw, &rtp.addr, sizeof(struct sockaddr_storage));
154
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144 send_mncc_to_sock(call->mncc, &rtp, sizeof(struct gsm_mncc_rtp));
141
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145 }