FreeCalypso > hg > themwi-system-sw

annotate sip-in/mncc_sig_out.c @ 217:9f6a148ceb25

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tcpserv-dump: brown paper bag
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 24 Jul 2023 22:33:01 -0800
parents 99fd4ae573ae
children
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e5aee661e3b2 sip-in: beginning to handle incoming MNCC messages from themwi-mncc
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1 /*
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2 * In this module we implement functions that send MNCC messages
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3 * to OsmoMSC via themwi-mncc, to be called by SIP and TMGW events.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/socket.h>
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8 #include <sys/time.h>
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9 #include <netinet/in.h>
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10 #include <stdio.h>
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11 #include <stdint.h>
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12 #include <stdlib.h>
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13 #include <string.h>
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14 #include <strings.h>
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15 #include <syslog.h>
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16 #include "../include/mncc.h"
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17 #include "../include/gsm48_const.h"
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18 #include "call.h"
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19
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20 void
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21 send_mncc_connect_ack(call)
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22 struct call *call;
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23 {
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24 struct gsm_mncc ack;
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25
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26 bzero(&ack, sizeof(struct gsm_mncc));
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27 ack.msg_type = MNCC_SETUP_COMPL_REQ;
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28 ack.callref = call->mncc_callref;
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29 send_mncc_to_gsm(&ack, sizeof(struct gsm_mncc));
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30 call->mncc_state = MNCC_STATE_CONNECTED;
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31 call->overall_state = OVERALL_STATE_CONNECTED;
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32 }
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33
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34 void
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35 mncc_dtmf_start_ok(call)
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36 struct call *call;
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37 {
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38 struct gsm_mncc msg;
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39
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40 bzero(&msg, sizeof(struct gsm_mncc));
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41 msg.msg_type = MNCC_START_DTMF_RSP;
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42 msg.callref = call->mncc_callref;
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43 msg.fields |= MNCC_F_KEYPAD;
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44 msg.keypad = call->dtmf_digit;
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45 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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46 }
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47
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48 void
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49 mncc_dtmf_start_err(call)
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50 struct call *call;
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51 {
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52 struct gsm_mncc msg;
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53
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54 bzero(&msg, sizeof(struct gsm_mncc));
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55 msg.msg_type = MNCC_START_DTMF_REJ;
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56 msg.callref = call->mncc_callref;
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57 mncc_set_cause(&msg, GSM48_CAUSE_LOC_PRN_S_LU,
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58 GSM48_CC_CAUSE_PROTO_ERR);
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59 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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60 }
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61
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62 void
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63 mncc_dtmf_stop_ok(call)
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64 struct call *call;
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65 {
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66 struct gsm_mncc msg;
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67
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68 bzero(&msg, sizeof(struct gsm_mncc));
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69 msg.msg_type = MNCC_STOP_DTMF_RSP;
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70 msg.callref = call->mncc_callref;
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71 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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72 }
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73
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74 void
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75 mncc_send_hold_ack(call)
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76 struct call *call;
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77 {
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78 struct gsm_mncc msg;
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79
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80 bzero(&msg, sizeof(struct gsm_mncc));
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81 msg.msg_type = MNCC_HOLD_CNF;
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82 msg.callref = call->mncc_callref;
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83 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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84 }
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85
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86 void
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87 mncc_send_retrieve_ack(call)
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88 struct call *call;
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89 {
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90 struct gsm_mncc msg;
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91
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92 bzero(&msg, sizeof(struct gsm_mncc));
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93 msg.msg_type = MNCC_RETRIEVE_CNF;
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94 msg.callref = call->mncc_callref;
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95 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
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96 }