FreeCalypso > hg > osmo-playpen

annotate smsc-daemon/main.c @ 6:18b7f75fed9b

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smsc-sendmt/smsc_addr.c: temporary code stashaway
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 25 Aug 2023 14:28:54 -0800
parents cef4677a4cf8
children 22ddb71f6883
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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 <stdlib.h>
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16 #include <errno.h>
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17 #include <signal.h>
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18
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19 #include <osmocom/core/msgb.h>
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20 #include <osmocom/core/select.h>
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21 #include <osmocom/core/application.h>
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22 #include <osmocom/core/utils.h>
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23 #include <osmocom/core/logging.h>
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24
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25 #include <osmocom/gsm/gsup.h>
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26
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27 #include <osmocom/gsupclient/gsup_client.h>
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28
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29 #include "logging.h"
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30
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31 extern int gsupc_read_cb(struct osmo_gsup_client *gsupc, struct msgb *msg);
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32
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33 char smsc_addr_num[21]; /* maximum of 20 digits per GSM 04.11 */
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34 uint8_t smsc_addr_ton_npi;
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35 FILE *smsc_log_file;
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36 char smsc_gsup_name[26];
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37 struct osmo_gsup_client *g_gc;
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38
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39 static struct log_info_cat default_categories[] = {
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40 [DMAIN] = {
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41 .name = "DMAIN",
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42 .description = "Main Program",
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43 .enabled = 1, .loglevel = LOGL_DEBUG,
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44 },
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45 };
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46
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47 static const struct log_info smsc_log_info = {
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48 .cat = default_categories,
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49 .num_cat = ARRAY_SIZE(default_categories),
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50 };
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51
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52 static void parse_smsc_addr_arg(char *arg)
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53 {
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54 char *cp, *dp, *endp;
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55 unsigned ndig;
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56
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57 cp = arg;
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58 dp = smsc_addr_num;
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59 ndig = 0;
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60 while (isdigit(*cp)) {
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61 if (ndig >= 20) {
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62 fprintf(stderr,
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63 "error: SMSC address argument exceeds GSM 04.11 limit of 20 digits\n");
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64 exit(1);
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65 }
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66 *dp++ = *cp++;
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67 ndig++;
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68 }
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69 if (!ndig) {
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70 invalid: fprintf(stderr,
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71 "error: SMSC address argument \"%s\" is invalid\n",
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72 arg);
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73 exit(1);
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74 }
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75 if (!*cp) {
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76 /* default to TON=1, NPI=1, i.e., a pretend Global Title */
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77 smsc_addr_ton_npi = 0x91;
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78 return;
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79 }
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80 if (*cp++ != ',')
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81 goto invalid;
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82 if (!*cp)
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83 goto invalid;
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84 smsc_addr_ton_npi = strtoul(cp, &endp, 0);
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85 if (*endp)
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86 goto invalid;
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87 }
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88
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89 static void open_log_file(char *filename)
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90 {
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91 smsc_log_file = fopen(filename, "a");
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92 if (!smsc_log_file) {
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93 perror(filename);
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94 exit(1);
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95 }
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96 }
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97
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98 int main(int argc, char **argv)
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99 {
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100 char *server_host = "127.0.0.1";
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101 uint16_t server_port = OSMO_GSUP_PORT;
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102 void *ctx = talloc_named_const(NULL, 0, "proto-smsc");
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103
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104 osmo_init_logging2(ctx, &smsc_log_info);
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105
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106 if (argc != 3) {
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107 fprintf(stderr, "usage: %s smsc-addr logfile\n", argv[0]);
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108 exit(1);
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109 }
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110 parse_smsc_addr_arg(argv[1]);
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111 open_log_file(argv[2]);
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112
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113 sprintf(smsc_gsup_name, "SMSC-%s", smsc_addr_num);
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114 g_gc = osmo_gsup_client_create(ctx, smsc_gsup_name, server_host,
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115 server_port, gsupc_read_cb, NULL);
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116 if (!g_gc) {
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117 fprintf(stderr, "error: osmo_gsup_client_create() failed\n");
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118 exit(1);
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119 }
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120
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121 while (1) {
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122 osmo_select_main(0);
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123 }
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124
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125 exit(0);
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126 }