FreeCalypso > hg > themwi-system-sw

annotate sip-out/invite.c @ 157:7643b779dbea

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sip-out: handle INVITE errors, except for cause mapping
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Oct 2022 07:56:14 -0800
parents 0bacca1f2f7b
children 51cf5ea7f320
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156
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
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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_invite_err;
156
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26 extern unsigned sip_linger_response_err;
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27
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28 static
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29 check_sdp_present(msg)
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30 struct sip_pkt_rx *msg;
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31 {
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32 char *hval;
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33
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34 if (!msg->msg_body_len)
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35 return 0;
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36 hval = get_single_header(msg, "Content-Type", "c", (int *) 0);
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37 if (!hval)
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38 return 0;
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39 if (!strcasecmp(hval, "application/sdp"))
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40 return 1;
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41 else
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42 return 0;
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43 }
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44
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45 static
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46 extract_sdp(call, msg)
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47 struct call *call;
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48 struct sip_pkt_rx *msg;
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49 {
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50 struct sdp_parse sdp_parse;
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51 int rc, use_pcma;
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52
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53 rc = parse_incoming_sdp(msg->msg_body, msg->msg_body_len, &sdp_parse);
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54 if (rc < 0)
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55 return rc;
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56 switch (sdp_parse.codec_mask) {
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57 case SDP_CODEC_MASK_PCMU:
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58 case SDP_CODEC_MASK_BOTH:
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59 use_pcma = 0;
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60 break;
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61 case SDP_CODEC_MASK_PCMA:
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62 case SDP_CODEC_MASK_BOTH | SDP_CODEC_MASK_PCMA_PREF:
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63 use_pcma = 1;
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64 break;
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65 default:
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66 return -2;
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67 }
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68 call->pstn_rtp_remote.sin_family = AF_INET;
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69 call->pstn_rtp_remote.sin_addr = sdp_parse.ip_addr;
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70 call->pstn_rtp_remote.sin_port = htons(sdp_parse.audio_port);
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71 call->use_pcma = use_pcma;
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72 return 0;
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73 }
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74
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75 static void
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76 handle_1xx(call, msg, tag, sin)
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77 struct call *call;
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78 struct sip_pkt_rx *msg;
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79 char *tag;
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80 struct sockaddr_in *sin;
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81 {
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82 int rc;
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83
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84 switch (call->sip_state) {
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85 case SIP_STATE_INV_SENT:
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86 call->sip_state = SIP_STATE_100_RCVD;
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87 /* FALL THRU */
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88 case SIP_STATE_100_RCVD:
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89 if (msg->status_code == 180)
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90 call->overall_state = OVERALL_STATE_RINGING;
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91 if (check_sdp_present(msg) &&
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92 call->mgw_state == MGW_STATE_ALLOCATED) {
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93 rc = extract_sdp(call, msg);
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94 if (rc < 0) {
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95 syslog(LOG_ERR, "bad SDP in %03u response",
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96 msg->status_code);
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97 call->overall_state = OVERALL_STATE_TEARDOWN;
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98 disconnect_mncc(call, GSM48_CAUSE_LOC_PRN_S_LU,
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99 GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
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100 disconnect_tmgw(call);
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101 initiate_sip_cancel(call);
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102 return;
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103 }
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104 tmgw_send_mdcx_connect(call, 1);
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105 } else if (msg->status_code == 180)
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106 mncc_signal_alerting(call);
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107 return;
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108 case SIP_STATE_ACCEPT_100:
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109 initiate_sip_cancel(call);
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110 return;
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111 }
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112 }
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113
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114 static
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115 send_ack(call, tag, sin)
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116 struct call *call;
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117 char *tag;
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118 struct sockaddr_in *sin;
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119 {
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120 struct sip_msg_out msg;
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121 int rc;
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122
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123 rc = start_request_out_msg(&msg, "ACK", call->to_uri);
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124 if (rc < 0)
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125 return rc;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 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
127 if (rc < 0)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 return rc;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 out_msg_finish(&msg);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 sip_tx_packet(&msg, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 return 0;
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
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 static void
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 handle_200(call, msg, tag, sin)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 struct call *call;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 struct sip_pkt_rx *msg;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 char *tag;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 struct sockaddr_in *sin;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 int rc;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 switch (call->sip_state) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 case SIP_STATE_INV_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 case SIP_STATE_100_RCVD:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 rc = send_ack(call, tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 "ACK to %03u response exceeds msg size!",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 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
153 GSM48_CC_CAUSE_DEST_OOO);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 call->sip_state = SIP_STATE_ENDED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 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
157 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 if (tag)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 strcpy(call->to_tag, tag);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 call->sip_state = SIP_STATE_CONNECTED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 if (!check_sdp_present(msg)) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 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
164 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 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
167 GSM48_CC_CAUSE_DEST_OOO);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 rc = extract_sdp(call, msg);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 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
175 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 call->overall_state = OVERALL_STATE_TEARDOWN;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 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
178 GSM48_CC_CAUSE_BEARER_CA_UNAVAIL);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 disconnect_tmgw(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 call->overall_state = OVERALL_STATE_CONNECTED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 switch (call->mgw_state) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 case MGW_STATE_ALLOCATED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 case MGW_STATE_IBT_CONN:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 tmgw_send_mdcx_connect(call, 0);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 case MGW_STATE_MDCX_IBT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 default:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 "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
194 call->mgw_state, msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 exit(1);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 case SIP_STATE_CONNECTED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 case SIP_STATE_BYE_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 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
200 syslog(LOG_ERR,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 "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
202 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 send_ack(call, call->to_tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 case SIP_STATE_CANCEL_SENT:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 case SIP_STATE_ACCEPT_100:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 case SIP_STATE_ACCEPT_200:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 rc = send_ack(call, tag, sin);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 if (rc < 0) {
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 "ACK to %03u response exceeds msg size!",
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 call->sip_state = SIP_STATE_ENDED;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 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
217 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 }
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 if (tag)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 strcpy(call->to_tag, tag);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 initiate_bye(call);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 case SIP_STATE_ENDED:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 return;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 default:
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 syslog(LOG_CRIT,
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 "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
228 call->sip_state, msg->status_code);
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 exit(1);
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
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 static void
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 handle_error(call, msg, tag, sin)
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 struct call *call;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 struct sip_pkt_rx *msg;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 char *tag;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 struct sockaddr_in *sin;
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 {
157
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
240 int rc;
156
0bacca1f2f7b sip-out: handle all INVITE responses, except errors
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241
157
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
242 rc = send_ack(call, tag, sin);
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
243 if (rc < 0)
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
244 syslog(LOG_CRIT, "ACK to %03u response exceeds msg size!",
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
245 msg->status_code);
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
246 switch (call->sip_state) {
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
247 case SIP_STATE_INV_SENT:
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
248 case SIP_STATE_100_RCVD:
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
249 call->overall_state = OVERALL_STATE_TEARDOWN;
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
250 disconnect_mncc(call, GSM48_CAUSE_LOC_NET_BEYOND,
7643b779dbea sip-out: handle INVITE errors, except for cause mapping
Mychaela Falconia <falcon@freecalypso.org>
parents: 156
diff changeset
251 sip_error_to_gsm_cause(msg->status_code));
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252 disconnect_tmgw(call);
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253 call->sip_state = SIP_STATE_ENDED;
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254 sip_mark_end_time(call, sip_linger_invite_err);
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255 return;
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256 case SIP_STATE_CANCEL_SENT:
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257 case SIP_STATE_ACCEPT_100:
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258 case SIP_STATE_ACCEPT_200:
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259 call->sip_state = SIP_STATE_ENDED;
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260 sip_mark_end_time(call, sip_linger_invite_err);
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261 return;
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262 case SIP_STATE_CONNECTED:
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263 case SIP_STATE_BYE_SENT:
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264 case SIP_STATE_ENDED:
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265 return;
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266 default:
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267 syslog(LOG_CRIT,
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268 "FATAL: invalid SIP state 0x%x on INVITE %03u response",
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269 call->sip_state, msg->status_code);
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270 exit(1);
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271 }
156
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272 }
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273
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274 void
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275 handle_invite_response(call, msg, sin)
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276 struct call *call;
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277 struct sip_pkt_rx *msg;
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278 struct sockaddr_in *sin;
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279 {
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280 char *tag;
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281
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282 tag = extract_to_tag(msg, call->to_uri);
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283 if (tag) {
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284 if (!*tag) {
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285 syslog(LOG_ERR,
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286 "To tag in INVITE %03u response is null",
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287 msg->status_code);
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288 tag = 0;
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289 } else if (strlen(tag) > MAX_SIP_TO_TAG) {
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diff changeset
290 syslog(LOG_ERR,
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diff changeset
291 "To tag in INVITE %03u response exceeds length limit",
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parents:
diff changeset
292 msg->status_code);
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parents:
diff changeset
293 tag = 0;
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294 }
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295 }
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296 if (msg->status_code >= 100 && msg->status_code <= 199)
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parents:
diff changeset
297 handle_1xx(call, msg, tag, sin);
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parents:
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298 else if (msg->status_code >= 200 && msg->status_code <= 299)
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parents:
diff changeset
299 handle_200(call, msg, tag, sin);
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parents:
diff changeset
300 else
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parents:
diff changeset
301 handle_error(call, msg, tag, sin);
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parents:
diff changeset
302 }