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annotate sip-in/call.h @ 141:e499e8db8b82

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sip-in: handle call hold and retrieve
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 08 Oct 2022 13:28:30 -0800
parents 5685412bd6aa
children
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1 /*
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2 * struct call defined in this header file is the big daddy:
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3 * it is the main call state structure for themwi-sip-in.
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4 */
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5
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6 struct call {
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7 /* call list management */
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8 char *sip_call_id;
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9 struct call *next;
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10 /* filled from initial INVITE */
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11 struct sockaddr_in udp_sin;
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12 char *invite_from;
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13 char *invite_to;
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14 char *invite_via;
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15 unsigned invite_cseq;
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16 char called_nanp[11];
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17 char *from_uri;
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18 unsigned from_uri_len;
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19 char *from_user;
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20 unsigned from_user_len;
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21 int use_100rel;
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22 unsigned in_tag_num;
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23 /* PSTN side RTP info */
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24 struct sockaddr_in pstn_rtp_local;
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25 struct sockaddr_in pstn_rtp_remote;
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26 int use_pcma;
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27 /* GSM side RTP info */
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28 struct sockaddr_storage gsm_rtp_osmo;
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29 struct sockaddr_storage gsm_rtp_tmgw;
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30 uint32_t gsm_payload_type;
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31 uint32_t gsm_payload_msg_type;
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32 /* state machines */
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33 uint32_t overall_state;
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34 uint32_t sip_state;
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35 uint32_t mgw_state;
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36 uint32_t mgw_ep_id;
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37 uint32_t mgw_xact;
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38 uint32_t mgw_xact_id;
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39 uint32_t sdp_addend;
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40 uint32_t mncc_state;
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41 uint32_t mncc_callref;
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42 char invite_fail[80];
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43 unsigned sip_tx_count;
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44 time_t sip_clear_time;
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45 int dtmf_digit;
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46 int dtmf_pending_stop;
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47 };
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48
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49 #define OVERALL_STATE_CRCX 1
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50 #define OVERALL_STATE_CALL_GSM 2
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51 #define OVERALL_STATE_ALERTING 3
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52 #define OVERALL_STATE_ANSWERED 4
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53 #define OVERALL_STATE_CONNECTED 5
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54 #define OVERALL_STATE_TEARDOWN 6
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55 #define OVERALL_STATE_DEAD_SIP 7
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56
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57 #define SIP_STATE_INVITE_PROC 1
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58 #define SIP_STATE_RINGING 2
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59 #define SIP_STATE_RINGING_REL 3
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60 #define SIP_STATE_INVITE_200 4
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61 #define SIP_STATE_CONNECTED 5
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62 #define SIP_STATE_BYE_SENT 6
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63 #define SIP_STATE_INVITE_ERR 7
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64 #define SIP_STATE_ENDED 8
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65 #define SIP_STATE_MSG_SIZE_ERR 9
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67 #define MNCC_STATE_NO_EXIST 0
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68 #define MNCC_STATE_STARTED 1
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69 #define MNCC_STATE_ALERTING 2
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70 #define MNCC_STATE_ANSWERED 3
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71 #define MNCC_STATE_CONNECTED 4
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72 #define MNCC_STATE_DISCONNECT 5
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73 #define MNCC_STATE_RELEASE 6
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74
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75 #define MGW_STATE_NO_EXIST 0
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76 #define MGW_STATE_ALLOCATED 1
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77 #define MGW_STATE_CONNECTING 2
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78 #define MGW_STATE_COMPLETE 3
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79 #define MGW_STATE_DELETING 4
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80 #define MGW_STATE_DTMF_OP 5
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81 #define MGW_STATE_HELD 6
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82 #define MGW_STATE_HOLD_OP 7
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83 #define MGW_STATE_RETRIEVE_OP 8