FreeCalypso > hg > themwi-system-sw
annotate sip-in/bye_out.c @ 134:2b03d2584f88
liboutrt: implement refresh
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 06 Oct 2022 23:31:37 -0800 |
parents | c1c94b7fc2e2 |
children | 4e16aeafbfbf |
rev | line source |
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1 /* |
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2 * In this module we implement our UAC functionality of sending BYE. |
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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 <arpa/inet.h> |
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10 #include <stdio.h> |
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11 #include <stdint.h> |
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12 #include <stdlib.h> |
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13 #include <string.h> |
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14 #include <strings.h> |
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15 #include <syslog.h> |
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16 #include "../libsip/parse.h" |
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17 #include "../libsip/resp_ident.h" |
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18 #include "../libsip/out_msg.h" |
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19 #include "call.h" |
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20 |
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21 extern struct call *find_call_by_sip_id(); |
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22 |
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23 extern struct in_addr sip_bind_ip; |
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24 extern unsigned sip_bind_port; |
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25 extern unsigned max_forwards; |
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26 extern unsigned sip_linger_acked; |
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27 extern unsigned sip_linger_error; |
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28 |
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29 fill_bye_out_msg(msg, call) |
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30 struct sip_msg_out *msg; |
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31 struct call *call; |
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32 { |
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33 char strbuf[80]; |
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34 int rc; |
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35 |
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36 rc = start_request_out_msg_urilen(msg, "BYE", call->from_uri, |
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37 call->from_uri_len); |
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38 if (rc < 0) |
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39 return rc; |
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40 sprintf(strbuf, "SIP/2.0/UDP %s:%u", |
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41 inet_ntoa(sip_bind_ip), sip_bind_port); |
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42 rc = out_msg_add_header(msg, "Via", strbuf); |
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43 if (rc < 0) |
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44 return rc; |
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45 rc = out_msg_add_header(msg, "From", call->invite_to); |
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46 if (rc < 0) |
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47 return rc; |
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48 rc = out_msg_add_header(msg, "To", call->invite_from); |
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49 if (rc < 0) |
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50 return rc; |
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51 rc = out_msg_add_header(msg, "Call-ID", call->sip_call_id); |
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52 if (rc < 0) |
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53 return rc; |
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54 rc = out_msg_add_header(msg, "CSeq", "1 BYE"); |
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55 if (rc < 0) |
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56 return rc; |
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57 sprintf(strbuf, "%u", max_forwards); |
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58 rc = out_msg_add_header(msg, "Max-Forwards", strbuf); |
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59 if (rc < 0) |
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60 return rc; |
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61 out_msg_finish(msg); |
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62 return 0; |
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63 } |
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64 |
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65 void |
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66 initiate_bye(call) |
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67 struct call *call; |
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68 { |
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69 struct sip_msg_out msg; |
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70 int rc; |
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71 |
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72 rc = fill_bye_out_msg(&msg, call); |
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73 if (rc < 0) { |
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74 syslog(LOG_ERR, "outgoing BYE request msg length exceeded"); |
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75 call->sip_state = SIP_STATE_MSG_SIZE_ERR; |
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76 sip_mark_end_time(call, sip_linger_error); |
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77 transition_dead_sip(call); |
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78 return; |
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79 } |
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80 sip_tx_packet(&msg, &call->udp_sin); |
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81 call->sip_state = SIP_STATE_BYE_SENT; |
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82 call->sip_tx_count = 1; |
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83 } |
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84 |
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85 void |
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86 process_sip_response(msg, sin) |
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87 struct sip_pkt_rx *msg; |
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88 struct sockaddr_in *sin; |
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89 { |
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90 struct sip_resp_ident rid; |
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91 struct call *call; |
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92 int rc; |
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93 |
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94 rc = sip_resp_extract_ident(msg, &rid); |
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95 if (rc < 0) { |
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96 syslog(LOG_ERR, "SIP %03u response: bad or missing %s header", |
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97 msg->status_code, rid.error_field); |
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98 return; |
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99 } |
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100 call = find_call_by_sip_id(rid.call_id); |
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101 if (!call) { |
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102 syslog(LOG_ERR, "SIP %03u response: unmatched Call-ID", |
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103 msg->status_code); |
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104 return; |
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105 } |
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106 if (rid.cseq_num != 1 || strcmp(rid.cseq_method, "BYE")) { |
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107 syslog(LOG_ERR, |
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108 "UAC received %03u response with unknown CSeq %u %.32s", |
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109 msg->status_code, rid.cseq_num, rid.cseq_method); |
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110 return; |
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111 } |
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112 if (msg->status_code < 200) |
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113 return; |
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114 if (call->sip_state == SIP_STATE_BYE_SENT) { |
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115 call->sip_state = SIP_STATE_ENDED; |
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116 if (msg->status_code <= 299) |
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117 sip_mark_end_time(call, sip_linger_acked); |
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118 else |
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119 sip_mark_end_time(call, sip_linger_error); |
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120 transition_dead_sip(call); |
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121 } |
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122 } |