FreeCalypso > hg > themwi-system-sw

annotate sip-in/retrans.c @ 68:709b78a4ebf0

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sip-in: implement retransmission of INVITE responses
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 18 Sep 2022 21:56:20 -0800
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children 72b7d85d6354
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709b78a4ebf0 sip-in: implement retransmission of INVITE responses
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * In this module we handle retransmission of INVITE responses
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3 * and BYE requests.
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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 <netinet/in.h>
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9 #include <stdio.h>
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10 #include <stdint.h>
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11 #include <stdlib.h>
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12 #include <string.h>
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13 #include <strings.h>
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14 #include <syslog.h>
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15 #include "../libsip/out_msg.h"
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16 #include "call.h"
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17
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18 extern unsigned cfg_retrans_count;
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19 extern struct call *call_list;
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20
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21 void
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22 run_periodic_retrans()
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23 {
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24 struct call *call;
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25 struct sip_msg_out msg;
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26
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27 for (call = call_list; call; call = call->next) {
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28 switch (call->sip_state) {
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29 case SIP_STATE_INVITE_200:
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30 if (call->sip_tx_count < cfg_retrans_count) {
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31 fill_invite_200_resp(&msg, call);
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32 sip_tx_packet(&msg, &call->udp_sin);
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33 call->sip_tx_count++;
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34 } else
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35 /* error handling to be implemented */;
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36 break;
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37 case SIP_STATE_INVITE_ERR:
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38 if (call->sip_tx_count < cfg_retrans_count) {
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39 start_response_out_msg(&msg, call->invite_fail);
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40 fill_invite_resp_from_call(&msg, call);
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41 out_msg_finish(&msg);
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42 sip_tx_packet(&msg, &call->udp_sin);
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43 call->sip_tx_count++;
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44 } else
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45 /* error handling to be implemented */;
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46 break;
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47 }
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48 }
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49 }