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annotate smsc-daemon/record_mo.c @ 19:9ff041d85da5

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proto-smsc-daemon: allow HLR GSUP server other than 127.0.0.1
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 16 Dec 2023 22:23:23 +0000
parents f9a83463ab52
children
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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 #include <time.h>
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19
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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/gsm48_ie.h>
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29 #include <osmocom/gsupclient/gsup_client.h>
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30
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31 #include "logging.h"
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33 extern FILE *smsc_log_file;
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34
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35 static void format_addr(char *ie_name, enum osmo_gsup_sms_sm_rp_oda_t type,
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36 size_t len, const uint8_t *data)
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37 {
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38 int skip_byte;
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39 uint8_t lv_buf[255];
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40 char decode_buf[520];
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41
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42 fprintf(smsc_log_file, "%s: ", ie_name);
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43 switch (type) {
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44 case OSMO_GSUP_SMS_SM_RP_ODA_IMSI:
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45 fputs("IMSI ", smsc_log_file);
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46 skip_byte = 0;
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47 break;
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48 case OSMO_GSUP_SMS_SM_RP_ODA_MSISDN:
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49 fprintf(smsc_log_file, "MSISDN TON=%u NPI=%u ",
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50 (data[0] & 0x70) >> 4, data[0] & 0x0F);
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51 skip_byte = 1;
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52 break;
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53 case OSMO_GSUP_SMS_SM_RP_ODA_SMSC_ADDR:
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54 fprintf(smsc_log_file, "SMSC TON=%u NPI=%u ",
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55 (data[0] & 0x70) >> 4, data[0] & 0x0F);
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56 skip_byte = 1;
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57 break;
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58 case OSMO_GSUP_SMS_SM_RP_ODA_NULL:
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59 fputs("NULL\n", smsc_log_file);
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60 return;
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61 default:
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62 fputs("Invalid!\n", smsc_log_file);
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63 return;
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64 }
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65 OSMO_ASSERT(len >= 1 && len <= 254);
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66 lv_buf[0] = len - skip_byte;
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67 memcpy(lv_buf + 1, data + skip_byte, len - skip_byte);
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68 gsm48_decode_bcd_number2(decode_buf, sizeof decode_buf,
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69 lv_buf, sizeof lv_buf, 0);
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70 fprintf(smsc_log_file, "%s\n", decode_buf[0] ? decode_buf : "<empty>");
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71 }
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72
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73 void record_mo_sm(struct osmo_gsup_message *gmsg)
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74 {
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75 time_t curtime;
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76 struct tm *tm;
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77 const uint8_t *dp, *endp;
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78
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79 time(&curtime);
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80 tm = gmtime(&curtime);
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81 fprintf(smsc_log_file, "\n%d-%02d-%02dT%02d:%02d:%02dZ Rx MO SM\n",
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82 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
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83 tm->tm_hour, tm->tm_min, tm->tm_sec);
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84 fprintf(smsc_log_file, "IMSI: %s\n", gmsg->imsi);
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85 fprintf(smsc_log_file, "SM-RP-MR: 0x%02X\n", *gmsg->sm_rp_mr);
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86 format_addr("SM-RP-DA", gmsg->sm_rp_da_type, gmsg->sm_rp_da_len,
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87 gmsg->sm_rp_da);
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88 format_addr("SM-RP-OA", gmsg->sm_rp_oa_type, gmsg->sm_rp_oa_len,
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89 gmsg->sm_rp_oa);
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90 fprintf(smsc_log_file, "SM-RP-UI: %u bytes\n", gmsg->sm_rp_ui_len);
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91 dp = gmsg->sm_rp_ui;
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92 endp = dp + gmsg->sm_rp_ui_len;
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93 while (dp < endp)
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94 fprintf(smsc_log_file, "%02X", *dp++);
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95 putc('\n', smsc_log_file);
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96 fflush(smsc_log_file);
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97 }