FreeCalypso > hg > themwi-system-sw

annotate rtp-mgr/alloc.c @ 235:bd493b21f215

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libnumdb2: port check_nanp.c
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 14 Aug 2023 13:57:10 -0800
parents b79d6334f543
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
179
b79d6334f543 themwi-rtp-mgr: RTP port allocation split out of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 127
diff changeset
2 * In this module we implement our RTP port allocation operation.
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <sys/types.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/socket.h>
127
f062c32a5116 mgw: implement DTMF
Mychaela Falconia <falcon@freecalypso.org>
parents: 99
diff changeset
7 #include <sys/time.h>
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <netinet/in.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <arpa/inet.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdio.h>
38
020ba624bdd8 mgw source: #include <stdlib.h> in files using tmgw_ctrl.h
Mychaela Falconia <falcon@freecalypso.org>
parents: 34
diff changeset
11 #include <stdint.h>
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <stdlib.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include <string.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 #include <strings.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 #include <syslog.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 #include <unistd.h>
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 #include "../include/tmgw_const.h"
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 #include "struct.h"
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 #include "select.h"
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20
179
b79d6334f543 themwi-rtp-mgr: RTP port allocation split out of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 127
diff changeset
21 get_rtp_port_pair(roe, brc)
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 struct rtp_one_end *roe;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 struct bind_range_cfg *brc;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 struct sockaddr_in sin;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 unsigned tries, rtp_port;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 int rc;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 sin.sin_family = AF_INET;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 sin.sin_addr = brc->bind_ip;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 for (tries = brc->port_tries; tries; tries--) {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 rtp_port = brc->port_next;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 brc->port_next += 2;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 if (brc->port_next >= brc->port_range_end)
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 brc->port_next = brc->port_range_start;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 sin.sin_port = htons(rtp_port);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 roe->rtp_fd = socket(AF_INET, SOCK_DGRAM, 0);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (roe->rtp_fd < 0) {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 syslog(LOG_CRIT, "socket(AF_INET, SOCK_DGRAM, 0): %m");
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 return(-1);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 }
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 rc = bind(roe->rtp_fd, (struct sockaddr *) &sin, sizeof sin);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 if (rc < 0) {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 close(roe->rtp_fd);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 continue;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 }
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 bcopy(&sin, &roe->bound_addr, sizeof(struct sockaddr_in));
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 sin.sin_port = htons(rtp_port+1);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 roe->rtcp_fd = socket(AF_INET, SOCK_DGRAM, 0);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 if (roe->rtcp_fd < 0) {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 syslog(LOG_CRIT, "socket(AF_INET, SOCK_DGRAM, 0): %m");
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 close(roe->rtp_fd);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 return(-1);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 }
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 rc = bind(roe->rtcp_fd, (struct sockaddr *) &sin, sizeof sin);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 if (rc < 0) {
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 close(roe->rtp_fd);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 close(roe->rtcp_fd);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 continue;
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 }
179
b79d6334f543 themwi-rtp-mgr: RTP port allocation split out of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents: 127
diff changeset
61 /* all good! */
32
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 return(0);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 }
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 /* couldn't find a free port pair */
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 return(-1);
b3f74df7b808 beginning of themwi-mgw
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 }