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annotate smsc-daemon/main.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 9ff041d85da5
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1 /*
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2 * This C module is part of proto-smsc-daemon concoction, a prototype/test
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3 * implementation of a GSUP-based GSM SMSC. It is based on the osmo-euse-demo
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4 * program from OsmoHLR package.
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5 *
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6 * proto-smsc-daemon author: Mychaela N. Falconia <falcon@freecalypso.org>,
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7 * no copyright.
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8 *
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9 * osmo-euse-demo author: Harald Welte <laforge@gnumonks.org>, (C) 2018, AGPL3+
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10 */
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11
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12 #include <ctype.h>
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13 #include <string.h>
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14 #include <stdio.h>
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15 #include <stdint.h>
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16 #include <stdlib.h>
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17 #include <errno.h>
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18 #include <signal.h>
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20 #include <osmocom/core/msgb.h>
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21 #include <osmocom/core/select.h>
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22 #include <osmocom/core/application.h>
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23 #include <osmocom/core/utils.h>
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24 #include <osmocom/core/logging.h>
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25
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26 #include <osmocom/gsm/gsup.h>
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27 #include <osmocom/gsm/ipa.h>
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29 #include <osmocom/gsupclient/gsup_client.h>
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31 #include "logging.h"
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33 extern int gsupc_read_cb(struct osmo_gsup_client *gsupc, struct msgb *msg);
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34 extern void setup_local_socket(const char *pathname);
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35
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36 #define MAX_IPA_NAME 31
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37
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38 FILE *smsc_log_file;
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39 char smsc_ipa_name[MAX_IPA_NAME+1];
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40 struct ipaccess_unit gsup_ipa_dev;
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41 struct osmo_gsup_client *g_gc;
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42
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43 static struct log_info_cat default_categories[] = {
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44 [DMAIN] = {
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45 .name = "DMAIN",
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46 .description = "Main Program",
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47 .enabled = 1, .loglevel = LOGL_DEBUG,
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48 },
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49 };
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50
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51 static const struct log_info smsc_log_info = {
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52 .cat = default_categories,
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53 .num_cat = ARRAY_SIZE(default_categories),
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54 };
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55
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56 static void set_ipa_name(const char *arg)
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57 {
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58 if (strlen(arg) > MAX_IPA_NAME) {
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59 fprintf(stderr, "error: IPA name argument is too long\n");
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60 exit(1);
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61 }
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62 strcpy(smsc_ipa_name, arg);
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63 }
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64
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65 static void open_log_file(const char *filename)
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66 {
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67 smsc_log_file = fopen(filename, "a");
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68 if (!smsc_log_file) {
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69 perror(filename);
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70 exit(1);
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71 }
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72 }
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73
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74 static void build_ipa_dev(void)
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75 {
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76 gsup_ipa_dev.unit_name = "SMSC";
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77 gsup_ipa_dev.serno = smsc_ipa_name;
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78 }
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79
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80 int main(int argc, char **argv)
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81 {
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82 char *server_host = "127.0.0.1";
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83 uint16_t server_port = OSMO_GSUP_PORT;
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84 void *ctx = talloc_named_const(NULL, 0, "proto-smsc");
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85
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86 osmo_init_logging2(ctx, &smsc_log_info);
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87
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88 if (argc < 3 || argc > 4) {
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89 fprintf(stderr, "usage: %s ipa-name logfile [local-socket]\n",
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90 argv[0]);
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91 exit(1);
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92 }
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93 set_ipa_name(argv[1]);
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94 open_log_file(argv[2]);
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95
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96 build_ipa_dev();
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97 g_gc = osmo_gsup_client_create2(ctx, &gsup_ipa_dev, server_host,
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98 server_port, gsupc_read_cb, NULL);
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99 if (!g_gc) {
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100 fprintf(stderr, "error: osmo_gsup_client_create2() failed\n");
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101 exit(1);
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102 }
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103 if (argv[3])
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104 setup_local_socket(argv[3]);
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105
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106 while (1) {
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107 osmo_select_main(0);
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108 }
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109
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110 exit(0);
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111 }