FreeCalypso > hg > themwi-system-sw

annotate sip-in/mncc_handle.c @ 138:0967f67c6ac3

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mtctest: accept call hold and retrieve requests
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 07 Oct 2022 16:00:26 -0800
parents 5685412bd6aa
children 01fe81914bd6
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1 /*
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2 * In this module we implement our handling of call control messages
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3 * from OsmoMSC relayed to us via themwi-mncc.
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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 "call.h"
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19
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20 extern struct call *find_call_by_mncc_callref();
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21
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22 static struct gsm_mncc_cause default_cause = {
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23 .coding = GSM48_CAUSE_CODING_GSM,
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24 .location = GSM48_CAUSE_LOC_PRN_S_LU,
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25 .value = GSM48_CC_CAUSE_NORMAL_UNSPEC,
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26 };
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27
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28 void
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29 send_mncc_connect_ack(call)
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30 struct call *call;
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31 {
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32 struct gsm_mncc ack;
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33
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34 bzero(&ack, sizeof(struct gsm_mncc));
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35 ack.msg_type = MNCC_SETUP_COMPL_REQ;
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36 ack.callref = call->mncc_callref;
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37 send_mncc_to_gsm(&ack, sizeof(struct gsm_mncc));
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38 call->mncc_state = MNCC_STATE_CONNECTED;
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39 call->overall_state = OVERALL_STATE_CONNECTED;
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40 }
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41
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42 void
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43 mncc_dtmf_start_ok(call)
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44 struct call *call;
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45 {
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46 struct gsm_mncc msg;
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47
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48 bzero(&msg, sizeof(struct gsm_mncc));
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49 msg.msg_type = MNCC_START_DTMF_RSP;
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50 msg.callref = call->mncc_callref;
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51 msg.fields |= MNCC_F_KEYPAD;
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52 msg.keypad = call->dtmf_digit;
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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 mncc_dtmf_start_err(call)
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58 struct call *call;
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59 {
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60 struct gsm_mncc msg;
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61
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62 bzero(&msg, sizeof(struct gsm_mncc));
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63 msg.msg_type = MNCC_START_DTMF_REJ;
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64 msg.callref = call->mncc_callref;
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65 mncc_set_cause(&msg, GSM48_CAUSE_LOC_PRN_S_LU,
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66 GSM48_CC_CAUSE_PROTO_ERR);
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67 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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68 }
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69
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70 void
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71 mncc_dtmf_stop_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_STOP_DTMF_RSP;
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78 msg.callref = call->mncc_callref;
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79 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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80 }
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81
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82 static void
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83 handle_alerting(call, msg)
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84 struct call *call;
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85 struct gsm_mncc *msg;
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86 {
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87 if (call->mncc_state != MNCC_STATE_STARTED) {
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88 syslog(LOG_ERR, "MNCC_ALERT_IND in wrong MNCC state 0x%x",
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89 call->mncc_state);
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90 return;
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91 }
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92 call->mncc_state = MNCC_STATE_ALERTING;
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93 call->overall_state = OVERALL_STATE_ALERTING;
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94 signal_invite_ringing(call);
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95 }
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96
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97 static void
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98 handle_answer(call, msg)
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99 struct call *call;
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100 struct gsm_mncc *msg;
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101 {
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102 if (call->mncc_state != MNCC_STATE_STARTED &&
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103 call->mncc_state != MNCC_STATE_ALERTING) {
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104 syslog(LOG_ERR, "MNCC_SETUP_CNF in wrong MNCC state 0x%x",
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105 call->mncc_state);
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106 return;
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107 }
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108 call->mncc_state = MNCC_STATE_ANSWERED;
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109 call->overall_state = OVERALL_STATE_ANSWERED;
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110 /* right now we require MNCC_RTP_CREATE to have come first */
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111 if (!call->gsm_payload_msg_type) {
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112 call->overall_state = OVERALL_STATE_TEARDOWN;
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113 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
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114 GSM48_CC_CAUSE_PROTO_ERR);
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115 disconnect_tmgw(call);
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116 strcpy(call->invite_fail, "502 Internal protocol error");
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117 signal_invite_error(call);
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118 return;
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119 }
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120 tmgw_send_mdcx_connect(call);
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diff changeset
121 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 static void
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 handle_disconnect_ind(call, msg)
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 struct call *call;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 struct gsm_mncc *msg;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 {
83
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
128 struct gsm_mncc_cause *cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
129
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
130 /* release back to MNCC */
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
131 msg->msg_type = MNCC_REL_REQ;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
132 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
133 call->mncc_state = MNCC_STATE_RELEASE;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
134 /* signal disconnect to SIP */
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
135 call->overall_state = OVERALL_STATE_TEARDOWN;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
136 if (msg->fields & MNCC_F_CAUSE)
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
137 cause = &msg->cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
138 else
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
139 cause = &default_cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
140 disconnect_sip(call, cause);
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
141 disconnect_tmgw(call);
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 static void
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 handle_final_release(call, msg)
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 struct call *call;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 struct gsm_mncc *msg;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 {
83
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
149 struct gsm_mncc_cause *cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
150
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
151 /* MNCC call leg is gone */
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
152 call->mncc_state = MNCC_STATE_NO_EXIST;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
153 /* signal disconnect to SIP */
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
154 call->overall_state = OVERALL_STATE_TEARDOWN;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
155 if (msg->fields & MNCC_F_CAUSE)
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
156 cause = &msg->cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
157 else
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
158 cause = &default_cause;
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
159 disconnect_sip(call, cause);
3e3fbf44f9d7 sip-in: disconnect and call clearing implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 66
diff changeset
160 disconnect_tmgw(call);
110
c1c94b7fc2e2 sip-in call clearing: DEAD_SIP transition implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 109
diff changeset
161 transition_dead_sip(call);
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 static void
128
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
165 handle_dtmf_start(call, msg)
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
166 struct call *call;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
167 struct gsm_mncc *msg;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
168 {
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
169 if (!(msg->fields & MNCC_F_KEYPAD) ||
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
170 !is_valid_dtmf_digit(msg->keypad)) {
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
171 msg->msg_type = MNCC_START_DTMF_REJ;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
172 mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU,
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
173 GSM48_CC_CAUSE_INVAL_MAND_INF);
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
174 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
175 return;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
176 }
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
177 if (call->overall_state != OVERALL_STATE_CONNECTED ||
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
178 call->mgw_state != MGW_STATE_COMPLETE) {
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
179 msg->msg_type = MNCC_START_DTMF_REJ;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
180 mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU,
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
181 GSM48_CC_CAUSE_MSGTYPE_INCOMPAT);
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
182 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
183 return;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
184 }
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
185 call->dtmf_digit = msg->keypad;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
186 tmgw_send_dtmf_start(call);
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
187 }
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
188
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
189 static void
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
190 handle_dtmf_stop(call, msg)
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
191 struct call *call;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
192 struct gsm_mncc *msg;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
193 {
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
194 if (call->overall_state == OVERALL_STATE_CONNECTED &&
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
195 call->mgw_state == MGW_STATE_COMPLETE)
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
196 tmgw_send_dtmf_stop(call);
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
197 else
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
198 call->dtmf_pending_stop = 1;
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
199 }
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
200
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
201 static void
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 handle_signaling_msg(msg, msglen)
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 struct gsm_mncc *msg;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 unsigned msglen;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 struct call *call;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 if (msglen != sizeof(struct gsm_mncc)) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 syslog(LOG_CRIT,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 "FATAL: Rx MNCC message type 0x%x has wrong length",
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 msg->msg_type);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 exit(1);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 call = find_call_by_mncc_callref(msg->callref);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 if (!call) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 syslog(LOG_CRIT,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 "error: Rx MNCC message type 0x%x has invalid callref 0x%x",
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 msg->msg_type, msg->callref);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 exit(1);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 switch (msg->msg_type) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 case MNCC_SETUP_CNF:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 handle_answer(call, msg);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 case MNCC_ALERT_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 handle_alerting(call, msg);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 case MNCC_DISC_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 handle_disconnect_ind(call, msg);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 case MNCC_REL_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 case MNCC_REL_CNF:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 case MNCC_REJ_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 handle_final_release(call, msg);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 case MNCC_START_DTMF_IND:
128
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
237 handle_dtmf_start(call, msg);
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 case MNCC_STOP_DTMF_IND:
128
5685412bd6aa sip-in: pass DTMF start & stop to themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 110
diff changeset
240 handle_dtmf_stop(call, msg);
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 case MNCC_MODIFY_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 msg->msg_type = MNCC_MODIFY_REJ;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 case MNCC_HOLD_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 msg->msg_type = MNCC_HOLD_REJ;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 case MNCC_RETRIEVE_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 msg->msg_type = MNCC_RETRIEVE_REJ;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 mncc_set_cause(msg, GSM48_CAUSE_LOC_PRN_S_LU,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 GSM48_CC_CAUSE_SERV_OPT_UNIMPL);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc));
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 static void
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 handle_rtp_create(msg, msglen)
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 struct gsm_mncc_rtp *msg;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 unsigned msglen;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 struct call *call;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 if (msglen != sizeof(struct gsm_mncc_rtp)) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 syslog(LOG_CRIT,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 "FATAL: Rx MNCC message type 0x%x has wrong length",
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 msg->msg_type);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 exit(1);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 call = find_call_by_mncc_callref(msg->callref);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 if (!call) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 syslog(LOG_CRIT,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 "error: Rx MNCC message type 0x%x has invalid callref 0x%x",
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 msg->msg_type, msg->callref);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 exit(1);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 }
84
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
283 /* save Osmocom network RTP information */
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
284 bcopy(&msg->addr, &call->gsm_rtp_osmo, sizeof(struct sockaddr_storage));
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
285 call->gsm_payload_type = msg->payload_type;
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
286 call->gsm_payload_msg_type = msg->payload_msg_type;
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
287 /* respond with MNCC_RTP_CONNECT */
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
288 msg->msg_type = MNCC_RTP_CONNECT;
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
289 bcopy(&call->gsm_rtp_tmgw, &msg->addr, sizeof(struct sockaddr_storage));
f82157ac7303 sip-in: handle MNCC_RTP_CREATE
Mychaela Falconia <falcon@freecalypso.org>
parents: 83
diff changeset
290 send_mncc_to_gsm(msg, sizeof(struct gsm_mncc_rtp));
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 void
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 msg_from_mncc(msg, msglen)
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 union mncc_msg *msg;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 unsigned msglen;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 switch (msg->msg_type) {
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 case MNCC_SETUP_CNF:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 case MNCC_CALL_CONF_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 case MNCC_ALERT_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 case MNCC_NOTIFY_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 case MNCC_DISC_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 case MNCC_FACILITY_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 case MNCC_START_DTMF_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 case MNCC_STOP_DTMF_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 case MNCC_MODIFY_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 case MNCC_HOLD_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 case MNCC_RETRIEVE_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 case MNCC_USERINFO_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 case MNCC_REL_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312 case MNCC_REL_CNF:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 case MNCC_REJ_IND:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 handle_signaling_msg(msg, msglen);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 return;
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 case MNCC_RTP_CREATE:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 handle_rtp_create(msg, msglen);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 return;
85
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
319 case MNCC_RTP_CONNECT:
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
320 syslog(LOG_ERR, "MNCC_RTP_CONNECT error from OsmoMSC");
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
321 return;
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
322 case MNCC_RTP_FREE:
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
323 syslog(LOG_ERR, "MNCC_RTP_FREE bogon from OsmoMSC");
70c3c8ebee33 sip-in: handle MNCC RTP bogons from OsmoMSC
Mychaela Falconia <falcon@freecalypso.org>
parents: 84
diff changeset
324 return;
63
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 default:
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 syslog(LOG_CRIT,
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 "FATAL: received unexpected MNCC message type 0x%x",
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 msg->msg_type);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 exit(1);
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 }
e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 }