FreeCalypso > hg > themwi-system-sw

annotate sip-in/call_list.c @ 96:f24bbfd23c9d

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mgw p2g: outgoing seq numbers, forwarding control
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 25 Sep 2022 19:32:27 -0800
parents 915f0f397fb6
children 0d6435808bcd
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02761f1ae5e5 sip-in INVITE processing: got as far as CRCX completion
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1 /*
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2 * In this module we implement call list management for themwi-sip-in.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <netinet/in.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 "call.h"
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15
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16 struct call *call_list;
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17
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18 struct call *
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19 find_call_by_sip_id(sought_id)
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20 char *sought_id;
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21 {
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22 struct call *call;
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23
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24 for (call = call_list; call; call = call->next)
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25 if (!strcmp(call->sip_call_id, sought_id))
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26 return call;
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27 return 0;
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28 }
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29
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30 struct call *
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31 find_call_by_mncc_callref(callref)
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32 uint32_t callref;
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33 {
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34 struct call *call;
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35
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36 for (call = call_list; call; call = call->next)
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37 if (call->mncc_state && call->mncc_callref == callref)
62
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38 return call;
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39 return 0;
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40 }
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41
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42 allocate_mncc_callref(call)
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43 struct call *call;
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44 {
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45 static uint32_t next_callref;
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46
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47 for (;;) {
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48 next_callref++;
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49 if (!find_call_by_mncc_callref(next_callref)) {
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50 call->mncc_callref = next_callref;
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51 return(0);
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52 }
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53 }
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54 }
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55
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56 void
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57 scan_call_list_for_timeouts(retrans)
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58 int *retrans;
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59 {
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60 struct call *call;
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61
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62 for (call = call_list; call; call = call->next) {
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63 switch (call->sip_state) {
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64 case SIP_STATE_INVITE_200:
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65 case SIP_STATE_INVITE_ERR:
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66 case SIP_STATE_BYE_SENT:
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67 *retrans = 1;
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68 break;
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69 }
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70 }
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71 }