FreeCalypso > hg > themwi-system-sw
annotate mncc/call_setup.c @ 240:c7a3ba56c636
themwi-short-dial: fix bug in printf arguments
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 14 Aug 2023 15:37:59 -0800 |
parents | 2ebad02adbe5 |
children | 59a166c50d0e |
rev | line source |
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1 /* |
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2 * In this module we implement setup of new calls: either new MO calls |
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3 * coming from GSM or new MT calls coming from a ThemWi call socket. |
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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 <stdio.h> |
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9 #include <stdint.h> |
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10 #include <stdlib.h> |
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11 #include <string.h> |
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12 #include <strings.h> |
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13 #include <syslog.h> |
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14 #include "../include/mncc.h" |
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15 #include "../include/gsm48_const.h" |
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16 #include "struct.h" |
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17 #include "gsm_call.h" |
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18 |
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19 preen_msc_provided_number(nums) |
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20 struct gsm_mncc_number *nums; |
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21 { |
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22 int len; |
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23 |
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24 len = grok_number_string(nums->number, 0); |
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25 switch (len) { |
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26 case 4: |
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27 nums->type = GSM48_TON_NET_SPEC; |
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28 nums->plan = GSM48_NPI_PRIVATE; |
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29 break; |
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30 case 11: |
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31 if (nums->number[0] != '1') |
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32 return(0); |
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33 nums->type = GSM48_TON_INTERNATIONAL; |
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34 nums->plan = GSM48_NPI_ISDN_E164; |
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35 break; |
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36 default: |
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37 return(0); |
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38 } |
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39 nums->screen = GSM48_SCRN_NETWORK; |
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40 return(1); |
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41 } |
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42 |
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43 void |
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44 reject_mo_call(callref, cause_loc, cause_val) |
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45 uint32_t callref; |
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46 { |
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47 struct gsm_mncc msg; |
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48 |
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49 bzero(&msg, sizeof(struct gsm_mncc)); |
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50 msg.msg_type = MNCC_REJ_REQ; |
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51 msg.callref = callref; |
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52 mncc_set_cause(&msg, cause_loc, cause_val); |
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53 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc)); |
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54 } |
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55 |
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56 void |
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57 process_mo_call_setup(msg) |
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58 struct gsm_mncc *msg; |
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59 { |
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60 struct gsm_call *call; |
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61 char nanp[11]; |
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62 int res, is_nanp, is_itn, is_local; |
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63 |
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64 if (preen_msc_provided_number(&msg->calling)) |
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65 msg->fields |= MNCC_F_CALLING; |
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66 else |
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67 msg->fields &= ~MNCC_F_CALLING; |
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68 if (!(msg->fields & MNCC_F_CALLED)) { |
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69 syslog(LOG_ERR, "rejecting MO call 0x%x: no called number", |
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70 msg->callref); |
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71 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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72 GSM48_CC_CAUSE_INVAL_MAND_INF); |
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73 return; |
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74 } |
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75 call = create_gsm_call(msg->callref); |
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76 if (!call) { |
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77 syslog(LOG_ERR, "rejecting MO call 0x%x: no memory for call", |
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78 msg->callref); |
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79 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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80 GSM48_CC_CAUSE_RESOURCE_UNAVAIL); |
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81 return; |
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82 } |
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83 /* route based on destination address */ |
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84 refresh_number_db(); |
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85 is_nanp = is_itn = 0; |
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86 switch (grok_number_string(msg->called.number, 0)) { |
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87 case 4: |
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88 if (msg->called.type != GSM48_TON_UNKNOWN && |
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89 msg->called.type != GSM48_TON_NET_SPEC && |
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90 msg->called.type != GSM48_TON_SHORT_CODE) |
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91 break; |
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92 if (msg->called.plan != GSM48_NPI_UNKNOWN && |
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93 msg->called.plan != GSM48_NPI_ISDN_E164 && |
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94 msg->called.plan != GSM48_NPI_PRIVATE) |
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95 break; |
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96 res = lookup_short_dial_number(msg->called.number, nanp); |
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97 if (!res) { |
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98 syslog(LOG_ERR, |
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99 "rejecting MO call 0x%x: invalid short number", |
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100 msg->callref); |
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101 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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102 GSM48_CC_CAUSE_UNASSIGNED_NR); |
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103 call->gc_flag = 1; |
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104 return; |
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105 } |
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106 if (nanp[0]) { |
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107 is_nanp = 1; |
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108 msg->called.type = GSM48_TON_INTERNATIONAL; |
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109 msg->called.plan = GSM48_NPI_ISDN_E164; |
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110 msg->called.number[0] = '1'; |
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111 strcpy(msg->called.number+1, nanp); |
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112 } else { |
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113 is_itn = 1; |
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114 msg->called.type = GSM48_TON_NET_SPEC; |
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115 msg->called.plan = GSM48_NPI_PRIVATE; |
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116 } |
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117 break; |
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118 case 10: |
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119 if (msg->called.type != GSM48_TON_UNKNOWN && |
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120 msg->called.type != GSM48_TON_NATIONAL) |
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121 break; |
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122 if (msg->called.plan != GSM48_NPI_UNKNOWN && |
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123 msg->called.plan != GSM48_NPI_ISDN_E164 && |
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124 msg->called.plan != GSM48_NPI_NATIONAL) |
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125 break; |
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126 if (!is_nanp_valid_prefix(msg->called.number)) { |
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127 syslog(LOG_ERR, |
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128 "rejecting MO call 0x%x: invalid NANP number", |
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129 msg->callref); |
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130 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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131 GSM48_CC_CAUSE_INV_NR_FORMAT); |
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132 call->gc_flag = 1; |
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133 return; |
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134 } |
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135 is_nanp = 1; |
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136 /* canonicalize to international format */ |
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137 bcopy(msg->called.number, msg->called.number+1, 11); |
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138 msg->called.number[0] = '1'; |
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139 msg->called.type = GSM48_TON_INTERNATIONAL; |
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140 msg->called.plan = GSM48_NPI_ISDN_E164; |
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141 break; |
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142 case 11: |
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143 if (msg->called.type != GSM48_TON_UNKNOWN && |
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144 msg->called.type != GSM48_TON_INTERNATIONAL) |
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145 break; |
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146 if (msg->called.plan != GSM48_NPI_UNKNOWN && |
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147 msg->called.plan != GSM48_NPI_ISDN_E164) |
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148 break; |
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149 if (msg->called.number[0] != '1') |
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150 break; |
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151 if (!is_nanp_valid_prefix(msg->called.number+1)) { |
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152 syslog(LOG_ERR, |
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153 "rejecting MO call 0x%x: invalid NANP number", |
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154 msg->callref); |
15
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155 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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156 GSM48_CC_CAUSE_INV_NR_FORMAT); |
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157 call->gc_flag = 1; |
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158 return; |
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159 } |
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160 is_nanp = 1; |
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161 /* canonicalize to international format */ |
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162 msg->called.type = GSM48_TON_INTERNATIONAL; |
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163 msg->called.plan = GSM48_NPI_ISDN_E164; |
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|
164 break; |
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|
165 } |
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166 is_local = is_itn; |
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167 if (is_nanp && is_nanp_locally_owned(msg->called.number+1)) |
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168 is_local = 1; |
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169 /* weed out attempts to call yourself */ |
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170 if (is_local && !strcmp(msg->calling.number, msg->called.number)) { |
28
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|
171 syslog(LOG_ERR, "rejecting MO call 0x%x: call to self", |
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|
172 msg->callref); |
15
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|
173 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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|
174 GSM48_CC_CAUSE_INCOMPAT_DEST); |
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|
175 call->gc_flag = 1; |
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parents:
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|
176 return; |
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parents:
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|
177 } |
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|
178 /* actually route the call */ |
167
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28
diff
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|
179 if (is_local) |
15
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diff
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|
180 internal_switch_mo_setup(call, msg); |
167
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|
181 else |
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themwi-mncc: route outbound calls to themwi-sip-out
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28
diff
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|
182 outbound_mo_setup(call, msg); |
15
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|
183 } |
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|
184 |
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parents:
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|
185 static void |
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parents:
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|
186 reject_mt_call(conn, callref, cause_loc, cause_val) |
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parents:
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|
187 struct socket_conn *conn; |
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parents:
diff
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|
188 uint32_t callref; |
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diff
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|
189 { |
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parents:
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|
190 struct gsm_mncc msg; |
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|
191 |
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|
192 bzero(&msg, sizeof(struct gsm_mncc)); |
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|
193 msg.msg_type = MNCC_REJ_REQ; |
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|
194 msg.callref = callref; |
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|
195 mncc_set_cause(&msg, cause_loc, cause_val); |
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|
196 mncc_signal_to_socket_nocall(conn, &msg); |
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|
197 } |
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|
198 |
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parents:
diff
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|
199 void |
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parents:
diff
changeset
|
200 process_ext_mtcall_setup(conn, msg) |
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parents:
diff
changeset
|
201 struct socket_conn *conn; |
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|
202 struct gsm_mncc *msg; |
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parents:
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|
203 { |
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diff
changeset
|
204 struct gsm_call *call; |
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parents:
diff
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|
205 |
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parents:
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|
206 if (!(msg->fields & MNCC_F_CALLED) && !msg->imsi[0]) { |
28
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Mychaela Falconia <falcon@freecalypso.org>
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27
diff
changeset
|
207 syslog(LOG_ERR, "rejecting ext MT: no called number"); |
15
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parents:
diff
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|
208 reject_mt_call(conn, msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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|
209 GSM48_CC_CAUSE_INVAL_MAND_INF); |
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parents:
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|
210 return; |
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parents:
diff
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|
211 } |
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parents:
diff
changeset
|
212 call = create_new_mt_call(); |
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parents:
diff
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|
213 if (!call) { |
28
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27
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|
214 syslog(LOG_ERR, "rejecting ext MT: no memory for call"); |
15
ccc5ab6d8388
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parents:
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|
215 reject_mt_call(conn, msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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parents:
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|
216 GSM48_CC_CAUSE_RESOURCE_UNAVAIL); |
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parents:
diff
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|
217 return; |
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parents:
diff
changeset
|
218 } |
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parents:
diff
changeset
|
219 call->socket = conn; |
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first version of themwi-mncc for ThemWi2
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parents:
diff
changeset
|
220 call->socket_ref = msg->callref; |
28
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parents:
27
diff
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|
221 conn->ncalls++; |
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Mychaela Falconia <falcon@freecalypso.org>
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27
diff
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|
222 syslog(LOG_DEBUG, "mapped socket callref 0x%x to GSM callref 0x%x", |
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parents:
27
diff
changeset
|
223 msg->callref, call->callref); |
15
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first version of themwi-mncc for ThemWi2
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224 /* forward to GSM MNCC interface */ |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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225 msg->callref = call->callref; |
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themwi-mncc: fix bug in forwarding from call socket to GSM
Mychaela Falconia <falcon@freecalypso.org>
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226 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc)); |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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227 } |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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228 |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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229 preen_connected_number(msg) |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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230 struct gsm_mncc *msg; |
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Mychaela Falconia <falcon@freecalypso.org>
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231 { |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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232 if (preen_msc_provided_number(&msg->connected)) |
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Mychaela Falconia <falcon@freecalypso.org>
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233 msg->fields |= MNCC_F_CONNECTED; |
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Mychaela Falconia <falcon@freecalypso.org>
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234 else |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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235 msg->fields &= ~MNCC_F_CONNECTED; |
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first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
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236 } |