FreeCalypso > hg > themwi-system-sw
annotate sip-in/retrans.c @ 91:fd23e2747b45
sip-in: add sip-udp-retrans configuration setting
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 23 Sep 2022 19:05:08 -0800 |
parents | 915f0f397fb6 |
children | 0d6435808bcd |
rev | line source |
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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 "../include/gsm48_const.h" |
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16 #include "../libsip/out_msg.h" |
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17 #include "call.h" |
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18 |
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19 extern unsigned cfg_retrans_count; |
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20 extern struct call *call_list; |
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21 |
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22 void |
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23 run_periodic_retrans() |
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24 { |
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25 struct call *call; |
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26 struct sip_msg_out msg; |
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27 |
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28 for (call = call_list; call; call = call->next) { |
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29 switch (call->sip_state) { |
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30 case SIP_STATE_INVITE_200: |
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31 if (call->sip_tx_count < cfg_retrans_count) { |
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32 fill_invite_200_resp(&msg, call); |
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33 sip_tx_packet(&msg, &call->udp_sin); |
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34 call->sip_tx_count++; |
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35 } else { |
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36 call->overall_state = OVERALL_STATE_TEARDOWN; |
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37 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU, |
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38 GSM48_CC_CAUSE_INTERWORKING); |
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39 disconnect_tmgw(call); |
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40 initiate_bye(call); |
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41 } |
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42 break; |
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43 case SIP_STATE_INVITE_ERR: |
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44 if (call->sip_tx_count < cfg_retrans_count) { |
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45 start_response_out_msg(&msg, call->invite_fail); |
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46 fill_invite_resp_from_call(&msg, call); |
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47 out_msg_finish(&msg); |
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48 sip_tx_packet(&msg, &call->udp_sin); |
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49 call->sip_tx_count++; |
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50 } else |
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51 call->sip_state = SIP_STATE_ENDED; |
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52 break; |
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53 case SIP_STATE_BYE_SENT: |
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54 if (call->sip_tx_count < cfg_retrans_count) { |
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55 fill_bye_out_msg(&msg, call); |
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56 sip_tx_packet(&msg, &call->udp_sin); |
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57 call->sip_tx_count++; |
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58 } else |
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59 call->sip_state = SIP_STATE_ENDED; |
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60 break; |
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61 } |
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62 } |
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63 } |