mirror of https://gerrit.osmocom.org/libosmocore
624 lines
16 KiB
C
624 lines
16 KiB
C
/*
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* (C) 2012 by Harald Welte <laforge@gnumonks.org>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <osmocom/gsm/protocol/gsm_04_08.h>
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#include <osmocom/gsm/gsm48_ie.h>
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#include <osmocom/gsm/gsm48.h>
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#include <osmocom/gsm/mncc.h>
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#include <osmocom/core/backtrace.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/core/msgb.h>
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static const uint8_t csd_9600_v110_lv[] = { 0x07, 0xa1, 0xb8, 0x89, 0x21, 0x15, 0x63, 0x80 };
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static const struct gsm_mncc_bearer_cap bcap_csd_9600_v110 = {
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.transfer = GSM48_BCAP_ITCAP_UNR_DIG_INF,
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.mode = GSM48_BCAP_TMOD_CIRCUIT,
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.coding = GSM48_BCAP_CODING_GSM_STD,
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.radio = GSM48_BCAP_RRQ_FR_ONLY,
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.speech_ver[0]= -1,
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.data = {
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.rate_adaption = GSM48_BCAP_RA_V110_X30,
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.sig_access = GSM48_BCAP_SA_I440_I450,
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.async = 1,
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.nr_stop_bits = 1,
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.nr_data_bits = 8,
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.user_rate = GSM48_BCAP_UR_9600,
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.parity = GSM48_BCAP_PAR_NONE,
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.interm_rate = GSM48_BCAP_IR_16k,
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.transp = GSM48_BCAP_TR_TRANSP,
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.modem_type = GSM48_BCAP_MT_NONE,
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},
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};
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static const uint8_t speech_all_lv[] = { 0x06, 0x60, 0x04, 0x02, 0x00, 0x05, 0x81 };
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static const struct gsm_mncc_bearer_cap bcap_speech_all = {
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.transfer = GSM48_BCAP_ITCAP_SPEECH,
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.mode = GSM48_BCAP_TMOD_CIRCUIT,
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.coding = GSM48_BCAP_CODING_GSM_STD,
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.radio = GSM48_BCAP_RRQ_DUAL_FR,
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.speech_ver = {
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4, 2, 0, 5, 1, -1,
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},
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};
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struct bcap_test {
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const uint8_t *lv;
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const struct gsm_mncc_bearer_cap *bc;
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const char *name;
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};
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static const struct bcap_test bcap_tests[] = {
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{ csd_9600_v110_lv, &bcap_csd_9600_v110, "CSD 9600/V.110/transparent" },
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{ speech_all_lv, &bcap_speech_all, "Speech, all codecs" },
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};
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static int test_bearer_cap()
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{
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struct gsm_mncc_bearer_cap bc;
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int i, rc;
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for (i = 0; i < ARRAY_SIZE(bcap_tests); i++) {
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struct msgb *msg = msgb_alloc(100, "test");
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int lv_len;
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memset(&bc, 0, sizeof(bc));
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/* test decoding */
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rc = gsm48_decode_bearer_cap(&bc, bcap_tests[i].lv);
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if (rc < 0) {
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fprintf(stderr, "Error decoding %s\n",
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bcap_tests[i].name);
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return rc;
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}
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if (memcmp(&bc, bcap_tests[i].bc, sizeof(bc))) {
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fprintf(stderr, "Incorrect decoded result of %s:\n",
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bcap_tests[i].name);
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fprintf(stderr, " should: %s\n",
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osmo_hexdump((uint8_t *) bcap_tests[i].bc, sizeof(bc)));
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fprintf(stderr, " is: %s\n",
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osmo_hexdump((uint8_t *) &bc, sizeof(bc)));
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return -1;
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}
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/* also test re-encode? */
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rc = gsm48_encode_bearer_cap(msg, 1, &bc);
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if (rc < 0) {
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fprintf(stderr, "Error encoding %s\n",
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bcap_tests[i].name);
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return rc;
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}
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lv_len = bcap_tests[i].lv[0]+1;
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if (memcmp(msg->data, bcap_tests[i].lv, lv_len)) {
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fprintf(stderr, "Incorrect encoded result of %s:\n",
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bcap_tests[i].name);
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fprintf(stderr, " should: %s\n",
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osmo_hexdump(bcap_tests[i].lv, lv_len));
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fprintf(stderr, " is: %s\n",
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osmo_hexdump(msg->data, msg->len));
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return -1;
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}
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printf("Test `%s' passed\n", bcap_tests[i].name);
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msgb_free(msg);
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}
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return 0;
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}
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static inline void dump_ra(const struct gprs_ra_id *raid)
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{
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printf("%s%s\n", osmo_rai_name(raid), raid->mnc_3_digits ? " (3-digit MNC)" : "");
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}
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static inline void check_ra(const struct gprs_ra_id *raid)
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{
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struct gsm48_ra_id ra;
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struct gprs_ra_id raid0 = {
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.mnc = 0,
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.mcc = 0,
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.lac = 0,
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.rac = 0,
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};
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gsm48_encode_ra(&ra, raid);
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printf("Constructed RA:\n");
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gsm48_parse_ra(&raid0, (const uint8_t *)&ra);
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dump_ra(raid);
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printf("MCC+MNC in BCD: %s\n", osmo_hexdump(ra.digits, sizeof(ra.digits)));
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dump_ra(&raid0);
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printf("RA test...");
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if (raid->mnc != raid0.mnc || raid->mcc != raid0.mcc || raid->lac != raid0.lac || raid->rac != raid0.rac
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|| (raid->mnc_3_digits || raid->mnc > 99) != raid0.mnc_3_digits)
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printf("FAIL\n");
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else
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printf("passed\n");
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}
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static inline void check_lai(const struct gprs_ra_id *raid)
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{
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int rc;
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struct gsm48_loc_area_id lai = {};
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struct gprs_ra_id decoded = {};
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struct gprs_ra_id _laid = *raid;
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struct gprs_ra_id *laid = &_laid;
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laid->rac = 0;
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printf("- gsm48_generate_lai() from "); dump_ra(laid);
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gsm48_generate_lai(&lai, laid->mcc, laid->mnc, laid->lac);
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printf(" Encoded %s\n", osmo_hexdump((unsigned char*)&lai, sizeof(lai)));
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rc = gsm48_decode_lai(&lai, &decoded.mcc, &decoded.mnc, &decoded.lac);
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if (rc) {
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printf(" gsm48_decode_lai() returned %d --> FAIL\n", rc);
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return;
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}
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printf(" gsm48_decode_lai() gives "); dump_ra(&decoded);
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if (decoded.mcc == laid->mcc
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&& decoded.mnc == laid->mnc
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&& decoded.lac == laid->lac)
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printf(" passed\n");
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else
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printf(" FAIL\n");
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}
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static inline void dump_lai(const struct osmo_location_area_id *lai)
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{
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printf("%s%s\n", osmo_lai_name(lai), lai->plmn.mnc_3_digits ? " (3-digit MNC)" : "");
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}
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static inline void check_lai2(const struct gprs_ra_id *raid)
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{
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struct gsm48_loc_area_id lai = {};
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struct osmo_location_area_id decoded = {};
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struct osmo_location_area_id laid = {
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.plmn = {
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.mcc = raid->mcc,
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.mnc = raid->mnc,
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.mnc_3_digits = raid->mnc_3_digits,
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},
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.lac = raid->lac,
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};
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printf("- gsm48_generate_lai2() from "); dump_lai(&laid);
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gsm48_generate_lai2(&lai, &laid);
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printf(" Encoded %s\n", osmo_hexdump((unsigned char*)&lai, sizeof(lai)));
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gsm48_decode_lai2(&lai, &decoded);
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printf(" gsm48_decode_lai2() gives "); dump_lai(&decoded);
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if (decoded.plmn.mcc == laid.plmn.mcc
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&& decoded.plmn.mnc == laid.plmn.mnc
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&& decoded.lac == laid.lac
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&& decoded.plmn.mnc_3_digits == (laid.plmn.mnc_3_digits || laid.plmn.mnc > 99))
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printf(" passed\n");
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else
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printf(" FAIL\n");
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}
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static struct gprs_ra_id test_ra_cap_items[] = {
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{
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.mcc = 77,
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.mnc = 121,
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.lac = 666,
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.rac = 5,
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},
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{
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.mcc = 84,
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.mnc = 98,
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.lac = 11,
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.rac = 89,
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},
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{
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.mcc = 0,
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.mnc = 0,
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.lac = 0,
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.rac = 0,
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.mnc_3_digits = false,
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/* expecting 000-00, BCD = 00 f0 00 */
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},
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{
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.mcc = 0,
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.mnc = 0,
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.lac = 0,
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.rac = 0,
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.mnc_3_digits = true,
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/* expecting 000-000, BCD = 00 00 00 */
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},
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{
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.mcc = 999,
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.mnc = 999,
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.lac = 65535,
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.rac = 255,
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},
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{
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.mcc = 1,
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.mnc = 2,
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.lac = 23,
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.rac = 42,
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.mnc_3_digits = false,
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/* expecting 001-02, BCD = 00 f1 20 */
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},
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{
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.mcc = 1,
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.mnc = 2,
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.lac = 23,
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.rac = 42,
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.mnc_3_digits = true,
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/* expecting 001-002, BCD = 00 21 00 */
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},
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{
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.mcc = 12,
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.mnc = 34,
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.lac = 56,
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.rac = 78,
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.mnc_3_digits = false,
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/* expecting 012-34, BCD = 10 f2 43 */
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},
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{
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.mcc = 12,
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.mnc = 34,
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.lac = 23,
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.rac = 42,
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.mnc_3_digits = true,
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/* expecting 012-034, BCD = 10 42 30 */
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},
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{
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.mcc = 123,
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.mnc = 456,
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.lac = 23,
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.rac = 42,
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.mnc_3_digits = false,
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/* expecting 123-456, BCD = 21 63 54 (false flag has no effect) */
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},
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{
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.mcc = 123,
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.mnc = 456,
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.lac = 23,
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.rac = 42,
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.mnc_3_digits = true,
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/* expecting 123-456, BCD = 21 63 54 (same) */
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},
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};
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static void test_ra_cap(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(test_ra_cap_items); i++)
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check_ra(&test_ra_cap_items[i]);
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}
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static void test_lai_encode_decode(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(test_ra_cap_items); i++) {
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check_lai(&test_ra_cap_items[i]);
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check_lai2(&test_ra_cap_items[i]);
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}
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}
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static void test_mid_from_tmsi(void)
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{
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static const uint8_t res[] = { 0x17, 0x05, 0xf4, 0xaa, 0xbb, 0xcc, 0xdd };
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uint32_t tmsi = 0xAABBCCDD;
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uint8_t buf[3 + sizeof(uint32_t)];
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printf("Simple TMSI encoding test....");
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memset(&buf, 0xFE, sizeof(buf));
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gsm48_generate_mid_from_tmsi(buf, tmsi);
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OSMO_ASSERT(memcmp(buf, res, sizeof(res)) == 0);
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printf("passed\n");
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}
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static void test_mid_from_imsi(void)
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{
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char *imsi = "901700000004620";
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uint8_t buf[10], len;
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printf("Simple IMSI encoding test....");
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len = gsm48_generate_mid_from_imsi(buf, imsi);
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printf("passed: [%u] %s\n", len, osmo_hexdump(buf, len));
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}
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struct test_mid_encode_decode_test {
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uint8_t mi_type;
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const char *mi_str;
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const char *mi_name;
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size_t str_size;
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const char *expect_mi_tlv_hex;
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const char *expect_str;
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int expect_rc;
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};
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static const struct test_mid_encode_decode_test test_mid_encode_decode_tests[] = {
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{
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.mi_type = GSM_MI_TYPE_IMSI,
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.mi_str = "123456789012345",
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.mi_name = "IMSI-123456789012345",
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.expect_mi_tlv_hex = "17081932547698103254",
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},
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{
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.mi_type = GSM_MI_TYPE_IMSI,
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.mi_str = "12345678901234",
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.mi_name = "IMSI-12345678901234",
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.expect_mi_tlv_hex = "170811325476981032f4",
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},
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{
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.mi_type = GSM_MI_TYPE_IMSI,
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.mi_str = "423423",
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.mi_name = "IMSI-423423",
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.expect_mi_tlv_hex = "1704413224f3",
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},
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{
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.mi_type = GSM_MI_TYPE_IMSI | GSM_MI_ODD,
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.mi_str = "423423",
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.mi_name = "IMSI-423423",
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.expect_mi_tlv_hex = "1704413224f3",
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},
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{
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.mi_type = GSM_MI_TYPE_IMSI,
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.mi_str = "4234235",
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.mi_name = "IMSI-4234235",
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.expect_mi_tlv_hex = "170449322453",
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},
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{
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.mi_type = GSM_MI_TYPE_IMSI,
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.mi_str = "4234235",
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.mi_name = "IMSI-4234235",
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.expect_mi_tlv_hex = "170449322453",
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.str_size = 4,
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.expect_str = "423",
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},
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{
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.mi_type = GSM_MI_TYPE_IMEI,
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.mi_str = "123456789012345",
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.mi_name = "IMEI-123456789012345",
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.expect_mi_tlv_hex = "17081a32547698103254",
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},
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{
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.mi_type = GSM_MI_TYPE_IMEI,
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.mi_str = "98765432109876",
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.mi_name = "IMEI-98765432109876",
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.expect_mi_tlv_hex = "170892785634129078f6",
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},
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{
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.mi_type = GSM_MI_TYPE_IMEI,
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.mi_str = "987654321098765",
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.mi_name = "IMEI-987654321098765",
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.expect_mi_tlv_hex = "17089a78563412907856",
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},
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{
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.mi_type = GSM_MI_TYPE_IMEISV,
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.mi_str = "987654321098765432",
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.mi_name = "IMEI-SV-987654321098765432",
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.expect_mi_tlv_hex = "170a937856341290785634f2",
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},
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{
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.mi_type = GSM_MI_TYPE_IMEISV,
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.mi_str = "987654321098765432",
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.mi_name = "IMEI-SV-987654321098765432",
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.expect_mi_tlv_hex = "170a937856341290785634f2",
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.str_size = 16,
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.expect_str = "987654321098765",
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},
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{
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/* gsm48 treats TMSI as decimal string */
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.mi_type = GSM_MI_TYPE_TMSI,
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.mi_str = "305419896", /* 0x12345678 as decimal */
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.mi_name = "TMSI-0x12345678",
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.expect_mi_tlv_hex = "1705f412345678",
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.expect_rc = 9, /* exception: gsm48_mi_to_string() for TMSI returns strlen(), not bytes! */
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},
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{
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.mi_type = GSM_MI_TYPE_TMSI,
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.mi_str = "12648430", /* 0xc0ffee as decimal */
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.mi_name = "TMSI-0x00C0FFEE",
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.expect_mi_tlv_hex = "1705f400c0ffee",
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.expect_rc = 8, /* exception: gsm48_mi_to_string() for TMSI returns strlen(), not bytes! */
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},
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{
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.mi_type = GSM_MI_TYPE_TMSI,
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.mi_str = "0",
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.mi_name = "TMSI-0x00000000",
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.expect_mi_tlv_hex = "1705f400000000",
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.expect_rc = 1, /* exception: gsm48_mi_to_string() for TMSI returns strlen(), not bytes! */
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},
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{
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/* gsm48 treats TMSI as decimal string */
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.mi_type = GSM_MI_TYPE_TMSI,
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.mi_str = "305419896", /* 0x12345678 as decimal */
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.mi_name = "TMSI-0x12345678",
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.expect_mi_tlv_hex = "1705f412345678",
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.str_size = 5,
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.expect_str = "3054",
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.expect_rc = 9, /* exception: gsm48_mi_to_string() for TMSI returns would-be strlen() like snprintf()! */
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},
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{
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.mi_type = GSM_MI_TYPE_NONE,
|
|
.mi_str = "123",
|
|
.mi_name = "unknown",
|
|
.expect_mi_tlv_hex = "17021832", /* encoding invalid MI type */
|
|
.expect_str = "",
|
|
},
|
|
{
|
|
.mi_type = GSM_MI_TYPE_NONE,
|
|
.mi_str = "1234",
|
|
.mi_name = "unknown",
|
|
.expect_mi_tlv_hex = "17031032f4", /* encoding invalid MI type */
|
|
.expect_str = "",
|
|
},
|
|
{
|
|
.mi_type = GSM_MI_ODD,
|
|
.mi_str = "1234",
|
|
.mi_name = "unknown",
|
|
.expect_mi_tlv_hex = "17031032f4", /* encoding invalid MI type */
|
|
.expect_str = "",
|
|
},
|
|
};
|
|
|
|
static void test_mid_encode_decode(void)
|
|
{
|
|
int i;
|
|
|
|
printf("\nTesting Mobile Identity conversions\n");
|
|
|
|
for (i = 0; i < ARRAY_SIZE(test_mid_encode_decode_tests); i++) {
|
|
const struct test_mid_encode_decode_test *t = &test_mid_encode_decode_tests[i];
|
|
uint8_t tlv_buf[64];
|
|
uint8_t *mi_buf;
|
|
int tlv_len;
|
|
int mi_len;
|
|
const char *tlv_hex;
|
|
char str[64] = {};
|
|
size_t str_size = t->str_size ? : sizeof(str);
|
|
const char *expect_str = t->expect_str ? : t->mi_str;
|
|
int expect_rc = t->expect_rc ? : strlen(expect_str)+1;
|
|
int rc;
|
|
int str_len;
|
|
|
|
printf("- %s %s\n", gsm48_mi_type_name(t->mi_type), t->mi_str);
|
|
if (t->mi_type == GSM_MI_TYPE_TMSI)
|
|
tlv_len = gsm48_generate_mid_from_tmsi(tlv_buf, (uint32_t)atoll(t->mi_str));
|
|
else
|
|
tlv_len = gsm48_generate_mid(tlv_buf, t->mi_str, t->mi_type);
|
|
tlv_hex = osmo_hexdump_nospc(tlv_buf, tlv_len);
|
|
|
|
printf(" -> MI-TLV-hex='%s'\n", tlv_hex);
|
|
if (t->expect_mi_tlv_hex && strcmp(tlv_hex, t->expect_mi_tlv_hex)) {
|
|
printf(" ERROR: expected '%s'\n", t->expect_mi_tlv_hex);
|
|
}
|
|
|
|
/* skip the GSM48_IE_MOBILE_ID tag and length */
|
|
mi_buf = tlv_buf + 2;
|
|
mi_len = tlv_len - 2;
|
|
|
|
rc = gsm48_mi_to_string(str, str_size, mi_buf, mi_len);
|
|
printf(" -> MI-str=%s rc=%d\n", osmo_quote_str(str, -1), rc);
|
|
if (strcmp(str, expect_str))
|
|
printf(" ERROR: expected MI-str=%s\n", osmo_quote_str(expect_str, -1));
|
|
if (rc != expect_rc)
|
|
printf(" ERROR: expected rc=%d\n", expect_rc);
|
|
|
|
if (t->mi_name) {
|
|
const char *mi_name = osmo_mi_name(mi_buf, mi_len);
|
|
printf(" -> MI-name=%s\n", osmo_quote_str(mi_name, -1));
|
|
if (strcmp(mi_name, t->mi_name))
|
|
printf(" ERROR: expected MI-name=%s\n", osmo_quote_str(t->mi_name, -1));
|
|
}
|
|
|
|
/* Now make sure the resulting string is always '\0' terminated.
|
|
* The above started out with a zeroed buffer, now repeat with a tainted one. */
|
|
str_len = strlen(str);
|
|
str[str_len] = '!';
|
|
gsm48_mi_to_string(str, str_size, mi_buf, mi_len);
|
|
if (strlen(str) != str_len)
|
|
printf(" ERROR: resulting string is not explicitly nul terminated\n");
|
|
}
|
|
}
|
|
|
|
static const uint8_t test_mid_decode_zero_length_types[] = { GSM_MI_TYPE_IMSI, GSM_MI_TYPE_TMSI, GSM_MI_TYPE_NONE };
|
|
|
|
static void test_mid_decode_zero_length(void)
|
|
{
|
|
int odd;
|
|
uint8_t valid_mi[64];
|
|
int valid_mi_len;
|
|
|
|
printf("\nDecoding zero length Mobile Identities\n");
|
|
|
|
/* IMSI = 123456789012345 */
|
|
valid_mi_len = osmo_hexparse("1932547698103254", valid_mi, sizeof(valid_mi));
|
|
|
|
for (odd = 0; odd <= 1; odd++) {
|
|
int i;
|
|
for (i = 0; i < ARRAY_SIZE(test_mid_decode_zero_length_types); i++) {
|
|
uint8_t mi_type = test_mid_decode_zero_length_types[i] | (odd ? GSM_MI_ODD : 0);
|
|
char str[8] = {};
|
|
int rc;
|
|
|
|
printf("- MI type: %s%s\n", gsm48_mi_type_name(mi_type & GSM_MI_TYPE_MASK),
|
|
odd ? " | GSM_MI_ODD":"");
|
|
valid_mi[0] = (valid_mi[0] & 0xf0) | mi_type;
|
|
|
|
printf(" - writing to zero-length string:\n");
|
|
memset(str, '!', sizeof(str) - 1);
|
|
rc = gsm48_mi_to_string(str, 0, valid_mi, valid_mi_len);
|
|
printf(" rc=%d\n", rc);
|
|
if (str[0] == '!')
|
|
printf(" nothing written\n");
|
|
else
|
|
printf(" ERROR: Wrote to invalid memory!\n");
|
|
|
|
printf(" - writing to 1-byte-length string:\n");
|
|
memset(str, '!', sizeof(str) - 1);
|
|
rc = gsm48_mi_to_string(str, 1, valid_mi, valid_mi_len);
|
|
printf(" rc=%d\n", rc);
|
|
if (str[0] == '\0')
|
|
printf(" returned empty string\n");
|
|
else if (str[0] == '!')
|
|
printf(" ERROR: nothing written, expected nul-terminated empty string\n");
|
|
else
|
|
printf(" ERROR: Wrote unexpected string %s\n", osmo_quote_str(str, 5));
|
|
if (str[1] != '!')
|
|
printf(" ERROR: Wrote to invalid memory!\n");
|
|
|
|
printf(" - decode zero-length mi:\n");
|
|
memset(str, '!', sizeof(str) - 1);
|
|
rc = gsm48_mi_to_string(str, sizeof(str), valid_mi, 0);
|
|
printf(" rc=%d\n", rc);
|
|
if (str[0] == '\0')
|
|
printf(" returned empty string\n");
|
|
else if (str[0] == '!')
|
|
printf(" ERROR: nothing written, expected nul-terminated empty string\n");
|
|
else
|
|
printf(" ERROR: expected empty string, got output string: %s\n", osmo_quote_str(str, -1));
|
|
}
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
test_bearer_cap();
|
|
test_mid_from_tmsi();
|
|
test_mid_from_imsi();
|
|
test_mid_encode_decode();
|
|
test_mid_decode_zero_length();
|
|
test_ra_cap();
|
|
test_lai_encode_decode();
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|