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comparison sip-in/disconnect.c @ 64:1f863c63f96b

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sip-in: beginning of disconnect handling
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 18 Sep 2022 15:29:30 -0800
parents
children 5beb51de1bae
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63:e5aee661e3b2 64:1f863c63f96b
1 /*
2 * In this module we implement call disconnection and clearing procedures.
3 */
4
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <netinet/in.h>
8 #include <stdio.h>
9 #include <stdint.h>
10 #include <stdlib.h>
11 #include <string.h>
12 #include <strings.h>
13 #include <syslog.h>
14 #include "../include/mncc.h"
15 #include "../include/gsm48_const.h"
16 #include "call.h"
17
18 void
19 disconnect_mncc(call, cause_loc, cause_val)
20 struct call *call;
21 {
22 struct gsm_mncc msg;
23
24 switch (call->mncc_state) {
25 case MNCC_STATE_NO_EXIST:
26 case MNCC_STATE_DISCONNECT:
27 case MNCC_STATE_RELEASE:
28 return;
29 }
30 bzero(&msg, sizeof(struct gsm_mncc));
31 msg.msg_type = MNCC_DISC_REQ;
32 msg.callref = call->mncc_callref;
33 mncc_set_cause(&msg, cause_loc, cause_val);
34 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc));
35 call->mncc_state = MNCC_STATE_DISCONNECT;
36 }
37
38 void
39 disconnect_tmgw(call)
40 struct call *call;
41 {
42 switch (call->mgw_state) {
43 case MGW_STATE_NO_EXIST:
44 case MGW_STATE_CONNECTING:
45 case MGW_STATE_DELETING:
46 return;
47 case MGW_STATE_ALLOCATED:
48 case MGW_STATE_COMPLETE:
49 tmgw_send_dlcx(call);
50 return;
51 default:
52 syslog(LOG_CRIT,
53 "FATAL: invalid MGW state 0x%x in disconnect_tmgw()",
54 call->mgw_state);
55 exit(1);
56 }
57 }