FreeCalypso > hg > themwi-system-sw
annotate mncc/outcall.c @ 233:60f6e561bfb8
libnumdb2: start with readbin.c
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 14 Aug 2023 13:10:38 -0800 |
parents | 2ebad02adbe5 |
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rev | line source |
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themwi-mncc: route outbound calls to themwi-sip-out
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1 /* |
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2 * In this module we handle routing of outbound MO calls |
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3 * to the outcall socket provided by themwi-sip-out. |
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4 */ |
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5 |
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6 #include <sys/types.h> |
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7 #include <sys/socket.h> |
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8 #include <sys/un.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 <unistd.h> |
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16 #include "../include/mncc.h" |
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17 #include "../include/gsm48_const.h" |
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18 #include "struct.h" |
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19 |
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20 extern struct socket_conn outcall_conn; |
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21 |
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22 static char outcall_socket_pathname[] = "/var/gsm/outcall_socket"; |
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23 |
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24 connect_outcall_socket() |
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25 { |
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26 struct sockaddr_un sa; |
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27 unsigned sa_len; |
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28 int fd, rc; |
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29 |
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30 if (outcall_conn.fd >= 0) |
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31 return(0); |
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32 fd = socket(AF_UNIX, SOCK_SEQPACKET, 0); |
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33 if (fd < 0) { |
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34 syslog(LOG_CRIT, "socket(AF_UNIX, SOCK_SEQPACKET, 0): %m"); |
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35 return(-1); |
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36 } |
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37 fill_sockaddr_un(outcall_socket_pathname, &sa, &sa_len); |
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38 rc = connect(fd, (struct sockaddr *) &sa, sa_len); |
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39 if (rc < 0) { |
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40 syslog(LOG_ERR, "connect to %s: %m", outcall_socket_pathname); |
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41 close(fd); |
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42 return(-1); |
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43 } |
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44 update_max_fd(fd); |
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45 outcall_conn.fd = fd; |
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46 return(0); |
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47 } |
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48 |
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49 void |
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50 outbound_mo_setup(call, msg) |
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51 struct gsm_call *call; |
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52 struct gsm_mncc *msg; |
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53 { |
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54 int rc; |
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55 |
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56 rc = connect_outcall_socket(); |
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57 if (rc < 0) { |
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58 syslog(LOG_ERR, "rejecting MO call 0x%x: outbound gateway down", |
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59 msg->callref); |
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60 reject_mo_call(msg->callref, GSM48_CAUSE_LOC_PRN_S_LU, |
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61 GSM48_CC_CAUSE_DEST_OOO); |
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62 call->gc_flag = 1; |
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63 return; |
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64 } |
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65 call->socket = &outcall_conn; |
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66 call->socket_ref = msg->callref; |
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67 outcall_conn.ncalls++; |
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68 mncc_signal_to_socket(call, msg); |
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69 } |