FreeCalypso > hg > themwi-system-sw

annotate sip-in/bye_in.c @ 166:8adcd220c6cf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
top Makefile: add sip-out
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Oct 2022 17:07:49 -0800
parents c1c94b7fc2e2
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
2 * Here we implement our handling of incoming SIP BYE requests.
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <sys/types.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/socket.h>
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
7 #include <sys/time.h>
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <netinet/in.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdio.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdint.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdlib.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <string.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <strings.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include <syslog.h>
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #include "../include/gsm48_const.h"
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #include "../libsip/parse.h"
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 #include "../libsip/uas_basic.h"
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 #include "../libsip/out_msg.h"
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 #include "call.h"
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 extern struct call *find_call_by_sip_id();
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
23 extern unsigned sip_linger_gotbye;
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
24 extern unsigned sip_linger_error;
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
25
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 void
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
27 handle_sip_bye(req, ess, sin)
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 struct sip_pkt_rx *req;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 struct uas_parse_hdrs *ess;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 struct sockaddr_in *sin;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 {
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 struct call *call;
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
33 struct sip_msg_out resp;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
34 char cseq_str[32];
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
35 int rc;
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 call = find_call_by_sip_id(ess->call_id);
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (!call) {
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
39 start_response_out_msg(&resp, "481 Call-ID not found");
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
40 rc = add_resp_basic_headers(&resp, ess, req->req_method);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
41 if (rc < 0)
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
42 return;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
43 out_msg_finish(&resp);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
44 sip_tx_packet(&resp, sin);
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 return;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 }
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 switch (call->sip_state) {
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 case SIP_STATE_INVITE_PROC:
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 case SIP_STATE_RINGING:
108
0d6435808bcd sip-in: implement 100rel for 180 Ringing response
Mychaela Falconia <falcon@freecalypso.org>
parents: 80
diff changeset
50 case SIP_STATE_RINGING_REL:
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 call->overall_state = OVERALL_STATE_TEARDOWN;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 disconnect_mncc(call, GSM48_CAUSE_LOC_NET_BEYOND,
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 GSM48_CC_CAUSE_NORM_CALL_CLEAR);
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 disconnect_tmgw(call);
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 strcpy(call->invite_fail, "487 Call attempt terminated");
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 signal_invite_error(call);
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 break;
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
58 case SIP_STATE_INVITE_200:
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
59 case SIP_STATE_CONNECTED:
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
60 call->overall_state = OVERALL_STATE_TEARDOWN;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
61 disconnect_mncc(call, GSM48_CAUSE_LOC_NET_BEYOND,
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
62 GSM48_CC_CAUSE_NORM_CALL_CLEAR);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
63 disconnect_tmgw(call);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
64 call->sip_state = SIP_STATE_ENDED;
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
65 sip_mark_end_time(call, sip_linger_gotbye);
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
66 break;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
67 case SIP_STATE_BYE_SENT:
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
68 call->sip_state = SIP_STATE_ENDED;
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
69 sip_mark_end_time(call, sip_linger_gotbye);
110
c1c94b7fc2e2 sip-in call clearing: DEAD_SIP transition implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 109
diff changeset
70 transition_dead_sip(call);
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
71 break;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
72 case SIP_STATE_INVITE_ERR:
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
73 case SIP_STATE_ENDED:
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
74 break;
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 case SIP_STATE_MSG_SIZE_ERR:
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 return;
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 }
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
78 /* send 200 response to BYE */
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
79 start_response_out_msg(&resp, "200 OK");
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
80 rc = out_msg_add_header(&resp, "From", call->invite_from);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
81 if (rc < 0) {
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
82 msg_size_err: syslog(LOG_ERR, "BYE 200 response length exceeded");
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
83 call->sip_state = SIP_STATE_MSG_SIZE_ERR;
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
84 sip_mark_end_time(call, sip_linger_error);
80
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
85 return;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
86 }
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
87 rc = out_msg_add_header(&resp, "To", call->invite_to);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
88 if (rc < 0)
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
89 goto msg_size_err;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
90 rc = out_msg_add_header(&resp, "Call-ID", call->sip_call_id);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
91 if (rc < 0)
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
92 goto msg_size_err;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
93 sprintf(cseq_str, "%u BYE", ess->cseq_num);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
94 rc = out_msg_add_header(&resp, "CSeq", cseq_str);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
95 if (rc < 0)
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
96 goto msg_size_err;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
97 rc = out_msg_add_header(&resp, "Via", ess->via);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
98 if (rc < 0)
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
99 goto msg_size_err;
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
100 out_msg_finish(&resp);
a9944b66dcc5 sip-in: handle incoming BYE
Mychaela Falconia <falcon@freecalypso.org>
parents: 79
diff changeset
101 sip_tx_packet(&resp, sin);
79
b0df2b200d77 sip-in: implement SIP CANCEL
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 }