FreeCalypso > hg > themwi-system-sw
annotate sip-in/disconnect.c @ 123:a36b731bfef9
sip-manual-out: implement sending BYE and CANCEL
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 29 Sep 2022 17:21:11 -0800 |
parents | 9b87894704eb |
children | 5685412bd6aa |
rev | line source |
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1 /* |
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2 * In this module we implement call disconnection and clearing procedures. |
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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 <sys/time.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/mncc.h" |
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16 #include "../include/gsm48_const.h" |
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17 #include "call.h" |
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18 |
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19 void |
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20 disconnect_mncc(call, cause_loc, cause_val) |
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21 struct call *call; |
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22 { |
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23 struct gsm_mncc msg; |
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24 |
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25 switch (call->mncc_state) { |
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26 case MNCC_STATE_NO_EXIST: |
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27 case MNCC_STATE_DISCONNECT: |
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28 case MNCC_STATE_RELEASE: |
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29 return; |
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30 } |
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31 bzero(&msg, sizeof(struct gsm_mncc)); |
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32 msg.msg_type = MNCC_DISC_REQ; |
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33 msg.callref = call->mncc_callref; |
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34 mncc_set_cause(&msg, cause_loc, cause_val); |
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35 send_mncc_to_gsm(&msg, sizeof(struct gsm_mncc)); |
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36 call->mncc_state = MNCC_STATE_DISCONNECT; |
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37 } |
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38 |
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39 void |
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40 disconnect_tmgw(call) |
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41 struct call *call; |
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42 { |
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43 switch (call->mgw_state) { |
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44 case MGW_STATE_NO_EXIST: |
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45 case MGW_STATE_CONNECTING: |
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46 case MGW_STATE_DELETING: |
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47 return; |
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48 case MGW_STATE_ALLOCATED: |
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49 case MGW_STATE_COMPLETE: |
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50 tmgw_send_dlcx(call); |
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51 return; |
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52 default: |
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53 syslog(LOG_CRIT, |
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54 "FATAL: invalid MGW state 0x%x in disconnect_tmgw()", |
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55 call->mgw_state); |
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56 exit(1); |
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57 } |
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58 } |
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59 |
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60 static char * |
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61 cause_to_invite_err(cause) |
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62 struct gsm_mncc_cause *cause; |
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63 { |
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64 switch (cause->value) { |
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65 case GSM48_CC_CAUSE_CALL_REJECTED: |
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66 return "403 Call rejected"; |
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67 case GSM48_CC_CAUSE_UNASSIGNED_NR: |
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68 return "404 Unassigned number"; |
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69 case GSM48_CC_CAUSE_USER_NOTRESPOND: |
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70 return "480 User not responding"; |
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71 case GSM48_CC_CAUSE_RESOURCE_UNAVAIL: |
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72 return "503 GSM network resource unavailable"; |
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73 case GSM48_CC_CAUSE_TEMP_FAILURE: |
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74 return "503 Temporary failure"; |
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75 case GSM48_CC_CAUSE_SWITCH_CONG: |
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76 return "503 Switch congestion at MSC"; |
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77 case GSM48_CC_CAUSE_USER_BUSY: |
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78 return "486 User busy"; |
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79 case GSM48_CC_CAUSE_DEST_OOO: |
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80 return "502 Destination out of order"; |
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81 case GSM48_CC_CAUSE_NETWORK_OOO: |
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82 return "503 Network out of order"; |
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83 default: |
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84 return "480 Unavailable (unspecified)"; |
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85 } |
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86 } |
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87 |
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88 void |
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89 disconnect_sip(call, cause) |
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90 struct call *call; |
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91 struct gsm_mncc_cause *cause; |
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92 { |
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93 switch (call->sip_state) { |
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94 case SIP_STATE_INVITE_PROC: |
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95 case SIP_STATE_RINGING: |
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96 case SIP_STATE_RINGING_REL: |
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97 strcpy(call->invite_fail, cause_to_invite_err(cause)); |
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98 signal_invite_error(call); |
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99 break; |
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100 case SIP_STATE_INVITE_200: |
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101 /* have to wait for SIP ACK, then send BYE */ |
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102 break; |
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103 case SIP_STATE_CONNECTED: |
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104 initiate_bye(call); |
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105 break; |
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106 } |
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107 } |