FreeCalypso > hg > osmo-playpen

annotate smsc-daemon/send_mt.c @ 15:ce6bcb84ca30

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doc/Proto-SMSC-testing: document written
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 27 Aug 2023 21:47:19 -0800
parents d9db8661d9f3
children
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1 /*
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2 * This module holds the code for the local socket: receiving MT-forwardSM.req
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3 * messages from proto-smsc-sendmt and forwarding them to our GSUP connection.
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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 <string.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 <errno.h>
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13
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14 #include <osmocom/core/msgb.h>
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15 #include <osmocom/core/socket.h>
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16 #include <osmocom/core/select.h>
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17 #include <osmocom/core/utils.h>
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18 #include <osmocom/core/logging.h>
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19
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20 #include <osmocom/gsupclient/gsup_client.h>
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21
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22 #include "logging.h"
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23
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24 extern struct osmo_gsup_client *g_gc;
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25
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26 static struct osmo_fd socket_ofd;
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27
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28 static int localsock_cb(struct osmo_fd *bfd, unsigned int what)
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29 {
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30 struct msgb *msg;
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31 int rc;
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32
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33 msg = osmo_gsup_client_msgb_alloc();
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34 rc = recv(bfd->fd, msg->tail, msgb_tailroom(msg), 0);
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35 if (rc <= 0) {
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36 LOGP(DMAIN, LOGL_ERROR,
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37 "recv from local socket returned %d\n", rc);
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38 return -1;
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39 }
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40 msgb_put(msg, rc);
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41 LOGP(DMAIN, LOGL_INFO,
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42 "forwarding msg of %d bytes from local socket\n", rc);
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43 osmo_gsup_client_send(g_gc, msg);
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44 return 0;
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45 }
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46
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47 void setup_local_socket(const char *pathname)
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48 {
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49 int rc;
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50
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51 socket_ofd.cb = localsock_cb;
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52 rc = osmo_sock_unix_init_ofd(&socket_ofd, SOCK_DGRAM, 0, pathname,
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53 OSMO_SOCK_F_BIND);
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54 if (rc < 0) {
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55 fprintf(stderr, "error: unable to set up local socket\n");
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56 exit(1);
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57 }
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58 }