FreeCalypso > hg > themwi-system-sw

annotate sip-out/invite.c @ 156:0bacca1f2f7b

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sip-out: handle all INVITE responses, except errors
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Oct 2022 07:13:55 -0800
parents
children 7643b779dbea
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156
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * In this module we handle responses to INVITE.
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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/gsm48_const.h"
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16 #include "../include/out_routes.h"
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17 #include "../libsip/parse.h"
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18 #include "../libsip/sdp.h"
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19 #include "../libsip/out_msg.h"
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20 #include "call.h"
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21
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22 extern char *get_single_header();
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23 extern char *extract_to_tag();
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24
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25 extern unsigned sip_linger_response_err;
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26
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27 static
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28 check_sdp_present(msg)
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29 struct sip_pkt_rx *msg;
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30 {
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31 char *hval;
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32
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33 if (!msg->msg_body_len)
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34 return 0;
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35 hval = get_single_header(msg, "Content-Type", "c", (int *) 0);
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36 if (!hval)
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37 return 0;
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38 if (!strcasecmp(hval, "application/sdp"))
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39 return 1;
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40 else
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41 return 0;
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42 }
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43
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44 static
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45 extract_sdp(call, msg)
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46 struct call *call;
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47 struct sip_pkt_rx *msg;
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48 {
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49 struct sdp_parse sdp_parse;
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50 int rc, use_pcma;
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51
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52 rc = parse_incoming_sdp(msg->msg_body, msg->msg_body_len, &sdp_parse);
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53 if (rc < 0)
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54 return rc;
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55 switch (sdp_parse.codec_mask) {
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56 case SDP_CODEC_MASK_PCMU:
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57 case SDP_CODEC_MASK_BOTH:
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58 use_pcma = 0;
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59 break;
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60 case SDP_CODEC_MASK_PCMA:
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61 case SDP_CODEC_MASK_BOTH | SDP_CODEC_MASK_PCMA_PREF:
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62 use_pcma = 1;
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63 break;
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64 default:
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65 return -2;
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66 }
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67 call->pstn_rtp_remote.sin_family = AF_INET;
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68 call->pstn_rtp_remote.sin_addr = sdp_parse.ip_addr;
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69 call->pstn_rtp_remote.sin_port = htons(sdp_parse.audio_port);
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70 call->use_pcma = use_pcma;
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71 return 0;
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72 }
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73
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74 static void
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75 handle_1xx(call, msg, tag, sin)
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76 struct call *call;
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77 struct sip_pkt_rx *msg;
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78 char *tag;
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79 struct sockaddr_in *sin;
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80 {
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81 int rc;
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82
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83 switch (call->sip_state) {
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84 case SIP_STATE_INV_SENT:
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85 call->sip_state = SIP_STATE_100_RCVD;
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86 /* FALL THRU */
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87 case SIP_STATE_100_RCVD:
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88 if (msg->status_code == 180)
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89 call->overall_state = OVERALL_STATE_RINGING;
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90 if (check_sdp_present(msg) &&
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91 call->mgw_state == MGW_STATE_ALLOCATED) {
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92 rc = extract_sdp(call, msg);
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93 if (rc < 0) {
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94 syslog(LOG_ERR, "bad SDP in %03u response",
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95 msg->status_code);
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96 call->overall_state = OVERALL_STATE_TEARDOWN;
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97 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
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98 GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
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99 disconnect_tmgw(call);
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100 initiate_sip_cancel(call);
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101 return;
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102 }
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103 tmgw_send_mdcx_connect(call, 1);
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104 } else if (msg->status_code == 180)
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105 mncc_signal_alerting(call);
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106 return;
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107 case SIP_STATE_ACCEPT_100:
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108 initiate_sip_cancel(call);
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109 return;
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110 }
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111 }
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112
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113 static
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114 send_ack(call, tag, sin)
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115 struct call *call;
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116 char *tag;
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117 struct sockaddr_in *sin;
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118 {
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119 struct sip_msg_out msg;
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120 int rc;
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121
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122 rc = start_request_out_msg(&msg, "ACK", call->to_uri);
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123 if (rc < 0)
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124 return rc;
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125 rc = add_req_boilerplate(&msg, call, "1 ACK", tag);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 if (rc < 0)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 return rc;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 out_msg_finish(&msg);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 sip_tx_packet(&msg, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 return 0;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 static void
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 handle_200(call, msg, tag, sin)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 struct call *call;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 struct sip_pkt_rx *msg;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 char *tag;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 struct sockaddr_in *sin;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 int rc;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 switch (call->sip_state) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 case SIP_STATE_INV_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 case SIP_STATE_100_RCVD:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 rc = send_ack(call, tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 "ACK to %03u response exceeds msg size!",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 GSM48_CC_CAUSE_DEST_OOO);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 call->sip_state = SIP_STATE_ENDED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 sip_mark_end_time(call, sip_linger_response_err);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 if (tag)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 strcpy(call->to_tag, tag);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 call->sip_state = SIP_STATE_CONNECTED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 if (!check_sdp_present(msg)) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 syslog(LOG_ERR, "error: %03u response has no SDP",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 GSM48_CC_CAUSE_DEST_OOO);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 rc = extract_sdp(call, msg);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 syslog(LOG_ERR, "bad SDP in %03u response",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 call->overall_state = OVERALL_STATE_CONNECTED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 switch (call->mgw_state) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 case MGW_STATE_ALLOCATED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 case MGW_STATE_IBT_CONN:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 tmgw_send_mdcx_connect(call, 0);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 case MGW_STATE_MDCX_IBT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 default:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 "FATAL: invalid MGW state 0x%x on INVITE %03u response",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 call->mgw_state, msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 exit(1);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 case SIP_STATE_CONNECTED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 case SIP_STATE_BYE_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 if (tag && call->to_tag[0] && strcmp(call->to_tag, tag)) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 syslog(LOG_ERR,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 "received %u response with different To tag, ignoring",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 send_ack(call, call->to_tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 case SIP_STATE_CANCEL_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 case SIP_STATE_ACCEPT_100:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 case SIP_STATE_ACCEPT_200:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 rc = send_ack(call, tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 "ACK to %03u response exceeds msg size!",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 call->sip_state = SIP_STATE_ENDED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 sip_mark_end_time(call, sip_linger_response_err);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 if (tag)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 strcpy(call->to_tag, tag);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 case SIP_STATE_ENDED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 default:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 "FATAL: invalid SIP state 0x%x on INVITE %03u response",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 call->sip_state, msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 exit(1);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 static void
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 handle_error(call, msg, tag, sin)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 struct call *call;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 struct sip_pkt_rx *msg;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 char *tag;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 struct sockaddr_in *sin;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 void
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 handle_invite_response(call, msg, sin)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 struct call *call;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 struct sip_pkt_rx *msg;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 struct sockaddr_in *sin;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 char *tag;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 tag = extract_to_tag(msg, call->to_uri);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 if (tag) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 if (!*tag) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
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253 syslog(LOG_ERR,
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254 "To tag in INVITE %03u response is null",
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255 msg->status_code);
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256 tag = 0;
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257 } else if (strlen(tag) > MAX_SIP_TO_TAG) {
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258 syslog(LOG_ERR,
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259 "To tag in INVITE %03u response exceeds length limit",
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260 msg->status_code);
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261 tag = 0;
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262 }
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263 }
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264 if (msg->status_code >= 100 && msg->status_code <= 199)
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265 handle_1xx(call, msg, tag, sin);
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266 else if (msg->status_code >= 200 && msg->status_code <= 299)
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267 handle_200(call, msg, tag, sin);
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268 else
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269 handle_error(call, msg, tag, sin);
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270 }