/* simple test for the gsm0408 formatting functions */ /* * (C) 2008 by Holger Hans Peter Freyther * All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . * */ #include #include #include #include #include #include #include #include #include #define COMPARE(result, op, value) \ if (!((result) op (value))) {\ fprintf(stderr, "Compare failed. Was %x should be %x in %s:%d\n",result, value, __FILE__, __LINE__); \ exit(-1); \ } #define COMPARE_STR(result, value) \ if (strcmp(result, value) != 0) { \ fprintf(stderr, "Compare failed. Was %s should be %s in %s:%d\n",result, value, __FILE__, __LINE__); \ exit(-1); \ } /* * Test Location Area Identifier formatting. Table 10.5.3 of 04.08 */ static void test_location_area_identifier(void) { struct gsm48_loc_area_id lai48; printf("Testing test location area identifier\n"); /* * Test the default/test setup. Coming from * bsc_hack.c dumps */ gsm48_generate_lai(&lai48, 1, 1, 1); COMPARE(lai48.digits[0], ==, 0x00); COMPARE(lai48.digits[1], ==, 0xF1); COMPARE(lai48.digits[2], ==, 0x10); COMPARE(lai48.lac, ==, htons(0x0001)); gsm48_generate_lai(&lai48, 602, 1, 15); COMPARE(lai48.digits[0], ==, 0x06); COMPARE(lai48.digits[1], ==, 0xF2); COMPARE(lai48.digits[2], ==, 0x10); COMPARE(lai48.lac, ==, htons(0x000f)); } static void test_mi_functionality(void) { const char *imsi_odd = "987654321098763"; const char *imsi_even = "9876543210987654"; const uint32_t tmsi = 0xfabeacd0; uint8_t mi[128]; unsigned int mi_len; char mi_parsed[GSM48_MI_SIZE]; printf("Testing parsing and generating TMSI/IMSI\n"); /* tmsi code */ mi_len = gsm48_generate_mid_from_tmsi(mi, tmsi); gsm48_mi_to_string(mi_parsed, sizeof(mi_parsed), mi + 2, mi_len - 2); COMPARE((uint32_t)strtoul(mi_parsed, NULL, 10), ==, tmsi); /* imsi code */ mi_len = gsm48_generate_mid_from_imsi(mi, imsi_odd); gsm48_mi_to_string(mi_parsed, sizeof(mi_parsed), mi + 2, mi_len -2); printf("hex: %s\n", osmo_hexdump(mi, mi_len)); COMPARE_STR(mi_parsed, imsi_odd); mi_len = gsm48_generate_mid_from_imsi(mi, imsi_even); gsm48_mi_to_string(mi_parsed, sizeof(mi_parsed), mi + 2, mi_len -2); printf("hex: %s\n", osmo_hexdump(mi, mi_len)); COMPARE_STR(mi_parsed, imsi_even); } struct { int range; int arfcns_num; int arfcns[RANGE_ENC_MAX_ARFCNS]; } arfcn_test_ranges[] = { {ARFCN_RANGE_512, 12, { 1, 12, 31, 51, 57, 91, 97, 98, 113, 117, 120, 125 }}, {ARFCN_RANGE_512, 17, { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 }}, {ARFCN_RANGE_512, 18, { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 }}, {ARFCN_RANGE_512, 18, { 1, 17, 31, 45, 58, 79, 81, 97, 113, 127, 213, 277, 287, 311, 331, 391, 417, 511 }}, {ARFCN_RANGE_512, 6, { 1, 17, 31, 45, 58, 79 }}, {ARFCN_RANGE_512, 6, { 10, 17, 31, 45, 58, 79 }}, {ARFCN_RANGE_1024, 17, { 0, 17, 31, 45, 58, 79, 81, 97, 113, 127, 213, 277, 287, 311, 331, 391, 1023 }}, {ARFCN_RANGE_1024, 16, { 17, 31, 45, 58, 79, 81, 97, 113, 127, 213, 277, 287, 311, 331, 391, 1023 }}, {-1} }; static int test_single_range_encoding(int range, const int *orig_arfcns, int arfcns_num, int silent) { int arfcns[RANGE_ENC_MAX_ARFCNS]; int w[RANGE_ENC_MAX_ARFCNS]; int f0_included = 0; int rc, f0; uint8_t chan_list[16] = {0}; struct gsm_sysinfo_freq dec_freq[1024] = {{0}}; int dec_arfcns[RANGE_ENC_MAX_ARFCNS] = {0}; int dec_arfcns_count = 0; int arfcns_used = 0; int i; arfcns_used = arfcns_num; memmove(arfcns, orig_arfcns, sizeof(arfcns)); f0 = arfcns[0]; /* * Manipulate the ARFCN list according to the rules in J4 depending * on the selected range. */ arfcns_used = range_enc_filter_arfcns(range, arfcns, arfcns_used, f0, &f0_included); memset(w, 0, sizeof(w)); rc = range_enc_arfcns(range, arfcns, arfcns_used, w, 0); if (rc != 0) { printf("Cannot compute range W(k), rc = %d\n", rc); return 1; } if (!silent) fprintf(stderr, "range=%d, arfcns_used=%d, f0=%d, f0_included=%d\n", range, arfcns_used, f0, f0_included); /* Select the range and the amount of bits needed */ switch (range) { case ARFCN_RANGE_128: rc = range_enc_range128(chan_list, f0, w); break; case ARFCN_RANGE_256: rc = range_enc_range256(chan_list, f0, w); break; case ARFCN_RANGE_512: rc = range_enc_range512(chan_list, f0, w); break; case ARFCN_RANGE_1024: rc = range_enc_range1024(chan_list, f0, f0_included, w); break; default: return 1; }; if (rc != 0) { printf("Cannot encode range, rc = %d\n", rc); return 1; } if (!silent) printf("chan_list = %s\n", osmo_hexdump(chan_list, sizeof(chan_list))); rc = gsm48_decode_freq_list(dec_freq, chan_list, sizeof(chan_list), 0xfe, 1); if (rc != 0) { printf("Cannot decode freq list, rc = %d\n", rc); return 1; } for (i = 0; i < ARRAY_SIZE(dec_freq); i++) { if (dec_freq[i].mask && dec_arfcns_count < ARRAY_SIZE(dec_arfcns)) dec_arfcns[dec_arfcns_count++] = i; } if (!silent) { printf("Decoded freqs %d (expected %d)\n", dec_arfcns_count, arfcns_num); printf("Decoded: "); for (i = 0; i < dec_arfcns_count; i++) { printf("%d ", dec_arfcns[i]); if (dec_arfcns[i] != orig_arfcns[i]) printf("(!= %d) ", orig_arfcns[i]); } printf("\n"); } if (dec_arfcns_count != arfcns_num) { printf("Wrong number of arfcns\n"); return 1; } if (memcmp(dec_arfcns, orig_arfcns, sizeof(dec_arfcns)) != 0) { printf("Decoding error, got wrong freqs\n"); fprintf(stderr, " w = "); for (i = 0; i < ARRAY_SIZE(w); i++) fprintf(stderr, "%d ", w[i]); fprintf(stderr, "\n"); return 1; } return 0; } static void test_random_range_encoding(int range, int max_arfcn_num) { int arfcns_num = 0; int test_idx; int rc, max_count; int num_tests = 1024; printf("Random range test: range %d, max num ARFCNs %d\n", range, max_arfcn_num); srandom(1); for (max_count = 1; max_count < max_arfcn_num; max_count++) { for (test_idx = 0; test_idx < num_tests; test_idx++) { int count; int i; int min_freq = 0; int rnd_arfcns[RANGE_ENC_MAX_ARFCNS] = {0}; char rnd_arfcns_set[1024] = {0}; if (range < ARFCN_RANGE_1024) min_freq = random() % (1023 - range); for (count = max_count; count; ) { int arfcn = min_freq + random() % (range + 1); OSMO_ASSERT(arfcn < ARRAY_SIZE(rnd_arfcns_set)); if (!rnd_arfcns_set[arfcn]) { rnd_arfcns_set[arfcn] = 1; count -= 1; } } arfcns_num = 0; for (i = 0; i < ARRAY_SIZE(rnd_arfcns_set); i++) if (rnd_arfcns_set[i]) rnd_arfcns[arfcns_num++] = i; rc = test_single_range_encoding(range, rnd_arfcns, arfcns_num, 1); if (rc != 0) { printf("Failed on test %d, range %d, num ARFCNs %d\n", test_idx, range, max_count); test_single_range_encoding(range, rnd_arfcns, arfcns_num, 0); return; } } } } static void test_range_encoding() { int *arfcns; int arfcns_num = 0; int test_idx; int range; for (test_idx = 0; arfcn_test_ranges[test_idx].arfcns_num > 0; test_idx++) { arfcns_num = arfcn_test_ranges[test_idx].arfcns_num; arfcns = &arfcn_test_ranges[test_idx].arfcns[0]; range = arfcn_test_ranges[test_idx].range; printf("Range test %d: range %d, num ARFCNs %d\n", test_idx, range, arfcns_num); test_single_range_encoding(range, arfcns, arfcns_num, 0); } test_random_range_encoding(ARFCN_RANGE_128, 29); test_random_range_encoding(ARFCN_RANGE_256, 22); test_random_range_encoding(ARFCN_RANGE_512, 18); test_random_range_encoding(ARFCN_RANGE_1024, 16); } int main(int argc, char **argv) { osmo_init_logging(&log_info); log_set_log_level(osmo_stderr_target, LOGL_INFO); test_location_area_identifier(); test_mi_functionality(); test_range_encoding(); printf("Done.\n"); return EXIT_SUCCESS; }