FreeCalypso > hg > themwi-interim

annotate mncc/mncc_sock.c @ 14:44c1d4d787e9 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
themwi-test-mtc: add option to set bearer cap
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 28 Nov 2024 20:37:23 +0000
parents 053f04687106
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * In this module we implement low-level handling
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * of the main MNCC socket that connects to OsmoMSC.
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/types.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <sys/socket.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <sys/un.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdio.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdint.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include <stdlib.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 #include <syslog.h>
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 #include "../include/mncc.h"
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 static char mncc_socket_pathname[] = "/var/gsm/mncc_socket";
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 int mncc_socket;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 open_mncc_socket()
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 struct sockaddr_un sa;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 unsigned sa_len;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 int rc;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 mncc_socket = socket(AF_UNIX, SOCK_SEQPACKET, 0);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 if (mncc_socket < 0) {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 syslog(LOG_CRIT, "socket(AF_UNIX, SOCK_SEQPACKET, 0): %m");
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 return(-1);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 fill_sockaddr_un(mncc_socket_pathname, &sa, &sa_len);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 rc = connect(mncc_socket, (struct sockaddr *) &sa, sa_len);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 if (rc < 0) {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 syslog(LOG_ERR, "connect to %s: %m", mncc_socket_pathname);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 return(-1);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 update_max_fd(mncc_socket);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 return(0);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 void
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 mncc_socket_select()
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 union mncc_msg msg;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 int rc;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 rc = recv(mncc_socket, &msg, sizeof msg, 0);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 if (rc < 0) {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 syslog(LOG_CRIT, "error reading from MNCC socket: %m");
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 exit(1);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 if (rc < 4) {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 syslog(LOG_CRIT, "short read from MNCC socket: %d bytes", rc);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 exit(1);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 mncc_msg_from_gsm(&msg, rc);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 }
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 send_mncc_to_gsm(msg, msglen)
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 union mncc_msg *msg;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 unsigned msglen;
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 {
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 return send(mncc_socket, msg, msglen, 0);
053f04687106 mncc: initial import from old ThemWi
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 }