FreeCalypso > hg > themwi-system-sw

annotate sip-out/e911.c @ 265:e4a93ad611f3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
liboutrt: add prefix length output arg to route_e164_number()
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 13 Nov 2023 15:09:10 -0800
parents 9f96e5b14755
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
259
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * In this module we implement E911 routing, i.e., special handling
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * for calls to either the real 911 or E911 test numbers.
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/types.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/socket.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <stdio.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdint.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdlib.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <string.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <strings.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <syslog.h>
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include "../include/mncc.h"
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #include "../include/gsm48_const.h"
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #include "../include/number_db_v2.h"
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 #include "../libnumdb2/lookup_func.h"
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 e911_call_preen(msg)
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 struct gsm_mncc *msg;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 {
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 struct owned_number_rec *nr;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 syslog(LOG_NOTICE, "E911 call attempt from %s to %s, emergency flag %d",
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 msg->calling.number, msg->called.number, msg->emergency);
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 refresh_number_db();
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 nr = numdb_lookup_nanp(msg->calling.number+1);
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 if (!nr) {
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 syslog(LOG_NOTICE,
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 "E911 call rejected: calling number is not in database");
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 return 0;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 }
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 if (nr->number_flags & NUMBER_FLAG_E911PROV) {
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 syslog(LOG_NOTICE,
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 "E911 call allowed: calling number has E911 flag set");
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 return 1;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 }
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (nr->usage & NUMBER_USAGE_FLAG_E911_VIA) {
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 sprintf(msg->calling.number, "1%03u%03u%04u",
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 nr->remap[0], nr->remap[1], nr->remap[2]);
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 syslog(LOG_NOTICE, "E911 call: source number changed to %s",
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 msg->calling.number);
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 return 1;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 }
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 syslog(LOG_NOTICE,
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 "E911 call rejected: calling number is not E911-provisioned");
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 return 0;
9f96e5b14755 sip-out: implement E911 special handling
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 }