FreeCalypso > hg > themwi-system-sw

annotate mncc/call_setup.c @ 267:81958b35f74d

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NANP validation: allow made-up area codes of N9X form
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 13 Nov 2023 15:28:09 -0800
parents 59a166c50d0e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 "../include/number_db_v2.h"
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17 #include "../libnumdb2/lookup_func.h"
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18 #include "struct.h"
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19 #include "gsm_call.h"
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20
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21 preen_msc_provided_number(nums)
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22 struct gsm_mncc_number *nums;
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23 {
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24 int len;
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25
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26 len = grok_number_string(nums->number, 0);
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27 switch (len) {
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28 case 4:
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29 nums->type = GSM48_TON_NET_SPEC;
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30 nums->plan = GSM48_NPI_PRIVATE;
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31 break;
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32 case 11:
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33 if (nums->number[0] != '1')
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34 return(0);
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35 nums->type = GSM48_TON_INTERNATIONAL;
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36 nums->plan = GSM48_NPI_ISDN_E164;
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37 break;
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38 default:
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39 return(0);
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40 }
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41 nums->screen = GSM48_SCRN_NETWORK;
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42 return(1);
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43 }
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44
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45 void
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46 reject_mo_call(callref, cause_loc, cause_val)
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47 uint32_t callref;
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48 {
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49 struct gsm_mncc msg;
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50
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51 bzero(&msg, sizeof(struct gsm_mncc));
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52 msg.msg_type = MNCC_REJ_REQ;
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53 msg.callref = callref;
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54 mncc_set_cause(&msg, cause_loc, cause_val);
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55 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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56 }
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57
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58 void
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59 process_mo_call_setup(msg)
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60 struct gsm_mncc *msg;
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61 {
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62 struct gsm_call *call;
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63 struct owned_number_rec *own;
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64 struct short_number_rec *snum;
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65 int is_nanp, is_itn, is_local;
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66
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67 if (preen_msc_provided_number(&msg->calling))
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68 msg->fields |= MNCC_F_CALLING;
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69 else
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70 msg->fields &= ~MNCC_F_CALLING;
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71 if (!(msg->fields & MNCC_F_CALLED)) {
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72 syslog(LOG_ERR, "rejecting MO call 0x%x: no called number",
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73 msg->callref);
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74 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
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75 GSM48_CC_CAUSE_INVAL_MAND_INF);
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76 return;
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77 }
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78 call = create_gsm_call(msg->callref);
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79 if (!call) {
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80 syslog(LOG_ERR, "rejecting MO call 0x%x: no memory for call",
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81 msg->callref);
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82 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
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83 GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
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84 return;
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85 }
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86 /* route based on destination address */
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87 refresh_number_db();
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88 is_nanp = is_itn = 0;
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89 switch (grok_number_string(msg->called.number, 0)) {
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90 case 4:
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91 if (msg->called.type != GSM48_TON_UNKNOWN &&
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92 msg->called.type != GSM48_TON_NET_SPEC &&
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93 msg->called.type != GSM48_TON_SHORT_CODE)
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94 break;
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95 if (msg->called.plan != GSM48_NPI_UNKNOWN &&
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96 msg->called.plan != GSM48_NPI_ISDN_E164 &&
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97 msg->called.plan != GSM48_NPI_PRIVATE)
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98 break;
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99 snum = numdb_lookup_short(msg->called.number);
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100 if (!snum) {
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101 syslog(LOG_ERR,
243
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102 "rejecting MO call 0x%x: unassigned short number",
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103 msg->callref);
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104 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
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105 GSM48_CC_CAUSE_UNASSIGNED_NR);
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106 call->gc_flag = 1;
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107 return;
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108 }
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109 switch (snum->short_num_type) {
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110 case SHORT_NUM_TYPE_ABBREV:
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111 is_nanp = 1;
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112 msg->called.type = GSM48_TON_INTERNATIONAL;
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113 msg->called.plan = GSM48_NPI_ISDN_E164;
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114 sprintf(msg->called.number, "1%03u%03u%04u",
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115 snum->fullnum_prefix[0],
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116 snum->fullnum_prefix[1], snum->short_num);
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117 break;
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118 case SHORT_NUM_TYPE_ITN:
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119 is_itn = 1;
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120 msg->called.type = GSM48_TON_NET_SPEC;
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121 msg->called.plan = GSM48_NPI_PRIVATE;
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122 break;
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123 case SHORT_NUM_TYPE_TEST_SINK:
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124 syslog(LOG_ERR,
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125 "rejecting MO call 0x%x: test sink not implemented",
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
126 msg->callref);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
127 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
128 GSM48_CC_CAUSE_DEST_OOO);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
129 call->gc_flag = 1;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
130 return;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
131 default:
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
132 syslog(LOG_ERR,
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
133 "rejecting MO call 0x%x: unknown short number type 0x%02X",
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
134 msg->callref, snum->short_num_type);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
135 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
136 GSM48_CC_CAUSE_DEST_OOO);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
137 call->gc_flag = 1;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
138 return;
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 case 10:
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 if (msg->called.type != GSM48_TON_UNKNOWN &&
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 msg->called.type != GSM48_TON_NATIONAL)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 if (msg->called.plan != GSM48_NPI_UNKNOWN &&
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 msg->called.plan != GSM48_NPI_ISDN_E164 &&
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 msg->called.plan != GSM48_NPI_NATIONAL)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 if (!is_nanp_valid_prefix(msg->called.number)) {
28
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
150 syslog(LOG_ERR,
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
151 "rejecting MO call 0x%x: invalid NANP number",
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
152 msg->callref);
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 GSM48_CC_CAUSE_INV_NR_FORMAT);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 call->gc_flag = 1;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 return;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 is_nanp = 1;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 /* canonicalize to international format */
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 bcopy(msg->called.number, msg->called.number+1, 11);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 msg->called.number[0] = '1';
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 msg->called.type = GSM48_TON_INTERNATIONAL;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 msg->called.plan = GSM48_NPI_ISDN_E164;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 case 11:
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 if (msg->called.type != GSM48_TON_UNKNOWN &&
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 msg->called.type != GSM48_TON_INTERNATIONAL)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 if (msg->called.plan != GSM48_NPI_UNKNOWN &&
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 msg->called.plan != GSM48_NPI_ISDN_E164)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 if (msg->called.number[0] != '1')
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 if (!is_nanp_valid_prefix(msg->called.number+1)) {
28
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
175 syslog(LOG_ERR,
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
176 "rejecting MO call 0x%x: invalid NANP number",
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
177 msg->callref);
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 GSM48_CC_CAUSE_INV_NR_FORMAT);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 call->gc_flag = 1;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 return;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 is_nanp = 1;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 /* canonicalize to international format */
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 msg->called.type = GSM48_TON_INTERNATIONAL;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 msg->called.plan = GSM48_NPI_ISDN_E164;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 break;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 is_local = is_itn;
243
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
190 if (is_nanp && (own = numdb_lookup_nanp(msg->called.number+1))) {
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 is_local = 1;
243
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
192 switch (own->usage & NUMBER_USAGE_MASK) {
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
193 case NUMBER_USAGE_TYPE_GSM_SUB:
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
194 break;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
195 case NUMBER_USAGE_TYPE_ALIAS:
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
196 sprintf(msg->called.number, "1%03u%03u%04u",
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
197 own->remap[0], own->remap[1], own->remap[2]);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
198 break;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
199 default:
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
200 syslog(LOG_ERR,
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
201 "rejecting MO call 0x%x: unassigned owned NANP",
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
202 msg->callref);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
203 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
204 GSM48_CC_CAUSE_UNASSIGNED_NR);
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
205 call->gc_flag = 1;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
206 return;
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
207 }
59a166c50d0e themwi-mncc: convert to libnumdb2
Mychaela Falconia <falcon@freecalypso.org>
parents: 167
diff changeset
208 }
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 /* weed out attempts to call yourself */
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 if (is_local && !strcmp(msg->calling.number, msg->called.number)) {
28
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
211 syslog(LOG_ERR, "rejecting MO call 0x%x: call to self",
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
212 msg->callref);
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 GSM48_CC_CAUSE_INCOMPAT_DEST);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 call->gc_flag = 1;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 return;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 /* actually route the call */
167
2ebad02adbe5 themwi-mncc: route outbound calls to themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 28
diff changeset
219 if (is_local)
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 internal_switch_mo_setup(call, msg);
167
2ebad02adbe5 themwi-mncc: route outbound calls to themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 28
diff changeset
221 else
2ebad02adbe5 themwi-mncc: route outbound calls to themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 28
diff changeset
222 outbound_mo_setup(call, msg);
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 static void
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 reject_mt_call(conn, callref, cause_loc, cause_val)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 struct socket_conn *conn;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 uint32_t callref;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 {
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 struct gsm_mncc msg;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 bzero(&msg, sizeof(struct gsm_mncc));
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 msg.msg_type = MNCC_REJ_REQ;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 msg.callref = callref;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 mncc_set_cause(&msg, cause_loc, cause_val);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 mncc_signal_to_socket_nocall(conn, &msg);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 }
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 void
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 process_ext_mtcall_setup(conn, msg)
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 struct socket_conn *conn;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 struct gsm_mncc *msg;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 {
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 struct gsm_call *call;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 if (!(msg->fields & MNCC_F_CALLED) && !msg->imsi[0]) {
28
660126bd5f59 themwi-mncc: fix one bug, add debug syslog output
Mychaela Falconia <falcon@freecalypso.org>
parents: 27
diff changeset
247 syslog(LOG_ERR, "rejecting ext MT: no called number");
15
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 reject_mt_call(conn, msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 GSM48_CC_CAUSE_INVAL_MAND_INF);
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 return;
ccc5ab6d8388 first version of themwi-mncc for ThemWi2
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 }
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252 call = create_new_mt_call();
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253 if (!call) {
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254 syslog(LOG_ERR, "rejecting ext MT: no memory for call");
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255 reject_mt_call(conn, msg->callref, GSM48_CAUSE_LOC_PRN_S_LU,
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256 GSM48_CC_CAUSE_RESOURCE_UNAVAIL);
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257 return;
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258 }
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259 call->socket = conn;
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260 call->socket_ref = msg->callref;
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261 conn->ncalls++;
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262 syslog(LOG_DEBUG, "mapped socket callref 0x%x to GSM callref 0x%x",
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263 msg->callref, call->callref);
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264 /* forward to GSM MNCC interface */
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265 msg->callref = call->callref;
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266 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
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267 }
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268
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269 preen_connected_number(msg)
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270 struct gsm_mncc *msg;
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271 {
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272 if (preen_msc_provided_number(&msg->connected))
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273 msg->fields |= MNCC_F_CONNECTED;
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274 else
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275 msg->fields &= ~MNCC_F_CONNECTED;
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276 }