| /* GSM/GPRS/3G authentication testing tool */ |
| |
| /* (C) 2010-2011 by Harald Welte <laforge@gnumonks.org> |
| * |
| * All Rights Reserved |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <getopt.h> |
| |
| #include <osmocom/crypt/auth.h> |
| #include <osmocom/core/utils.h> |
| |
| static void dump_auth_vec(struct osmo_auth_vector *vec) |
| { |
| printf("RAND:\t%s\n", osmo_hexdump(vec->rand, sizeof(vec->rand))); |
| |
| if (vec->auth_types & OSMO_AUTH_TYPE_UMTS) { |
| printf("AUTN:\t%s\n", osmo_hexdump(vec->autn, sizeof(vec->autn))); |
| printf("IK:\t%s\n", osmo_hexdump(vec->ik, sizeof(vec->ik))); |
| printf("CK:\t%s\n", osmo_hexdump(vec->ck, sizeof(vec->ck))); |
| printf("RES:\t%s\n", osmo_hexdump(vec->res, vec->res_len)); |
| } |
| |
| if (vec->auth_types & OSMO_AUTH_TYPE_GSM) { |
| printf("SRES:\t%s\n", osmo_hexdump(vec->sres, sizeof(vec->sres))); |
| printf("Kc:\t%s\n", osmo_hexdump(vec->kc, sizeof(vec->kc))); |
| } |
| } |
| |
| static struct osmo_sub_auth_data test_aud = { |
| .type = OSMO_AUTH_TYPE_NONE, |
| .algo = OSMO_AUTH_ALG_NONE, |
| }; |
| |
| int main(int argc, char **argv) |
| { |
| struct osmo_auth_vector _vec; |
| struct osmo_auth_vector *vec = &_vec; |
| uint8_t _rand[16]; |
| int rc, option_index; |
| int rand_is_set = 0; |
| |
| printf("osmo-auc-gen (C) 2011 by Harald Welte\n"); |
| printf("This is FREE SOFTWARE with ABSOLUTELY NO WARRANTY\n\n"); |
| |
| while (1) { |
| int c; |
| unsigned long ul; |
| static struct option long_options[] = { |
| { "2g", 0, 0, '2' }, |
| { "3g", 0, 0, '3' }, |
| { "algorithm", 1, 0, 'a' }, |
| { "key", 1, 0, 'k' }, |
| { "opc", 1, 0, 'o' }, |
| { "amf", 1, 0, 'f' }, |
| { "sqn", 1, 0, 's' }, |
| { "rand", 1, 0, 'r' }, |
| { 0, 0, 0, 0 } |
| }; |
| |
| rc = 0; |
| |
| c = getopt_long(argc, argv, "23a:k:o:f:s:r:", long_options, |
| &option_index); |
| |
| if (c == -1) |
| break; |
| |
| switch (c) { |
| case '2': |
| test_aud.type = OSMO_AUTH_TYPE_GSM; |
| break; |
| case '3': |
| test_aud.type = OSMO_AUTH_TYPE_UMTS; |
| break; |
| case 'a': |
| rc = osmo_auth_alg_parse(optarg); |
| if (rc < 0) |
| break; |
| test_aud.algo = rc; |
| break; |
| case 'k': |
| switch (test_aud.type) { |
| case OSMO_AUTH_TYPE_GSM: |
| rc = osmo_hexparse(optarg, test_aud.u.gsm.ki, |
| sizeof(test_aud.u.gsm.ki)); |
| break; |
| case OSMO_AUTH_TYPE_UMTS: |
| rc = osmo_hexparse(optarg, test_aud.u.umts.k, |
| sizeof(test_aud.u.umts.k)); |
| break; |
| default: |
| fprintf(stderr, "please specify 2g/3g first!\n"); |
| } |
| break; |
| case 'o': |
| if (test_aud.type != OSMO_AUTH_TYPE_UMTS) { |
| fprintf(stderr, "Only UMTS has OPC\n"); |
| exit(2); |
| } |
| rc = osmo_hexparse(optarg, test_aud.u.umts.opc, |
| sizeof(test_aud.u.umts.opc)); |
| break; |
| case 'f': |
| if (test_aud.type != OSMO_AUTH_TYPE_UMTS) { |
| fprintf(stderr, "Only UMTS has AMF\n"); |
| exit(2); |
| } |
| rc = osmo_hexparse(optarg, test_aud.u.umts.amf, |
| sizeof(test_aud.u.umts.amf)); |
| break; |
| case 's': |
| if (test_aud.type != OSMO_AUTH_TYPE_UMTS) { |
| fprintf(stderr, "Only UMTS has SQN\n"); |
| exit(2); |
| } |
| ul = strtoul(optarg, 0, 10); |
| test_aud.u.umts.sqn = ul; |
| break; |
| case 'r': |
| rc = osmo_hexparse(optarg, _rand, sizeof(_rand)); |
| rand_is_set = 1; |
| break; |
| } |
| |
| if (rc < 0) { |
| fprintf(stderr, "Error parsing argument of option `%c'\n", c); |
| exit(2); |
| } |
| } |
| |
| if (!rand_is_set) { |
| printf("WARNING: We're using really weak random numbers!\n\n"); |
| srand(time(NULL)); |
| *(uint32_t *)&_rand[0] = rand(); |
| *(uint32_t *)(&_rand[4]) = rand(); |
| *(uint32_t *)(&_rand[8]) = rand(); |
| *(uint32_t *)(&_rand[12]) = rand(); |
| } |
| |
| memset(vec, 0, sizeof(*vec)); |
| |
| rc = osmo_auth_gen_vec(vec, &test_aud, _rand); |
| if (rc < 0) { |
| fprintf(stderr, "error generating auth vector\n"); |
| exit(1); |
| } |
| |
| dump_auth_vec(vec); |
| #if 0 |
| const uint8_t auts[14] = { 0x87, 0x11, 0xa0, 0xec, 0x9e, 0x16, 0x37, 0xdf, |
| 0x17, 0xf8, 0x0b, 0x38, 0x4e, 0xe4 }; |
| |
| rc = osmo_auth_gen_vec_auts(vec, &test_aud, auts, _rand, _rand); |
| if (rc < 0) { |
| printf("AUTS failed\n"); |
| } else { |
| printf("AUTS success: SEQ.MS = %lu\n", test_aud.u.umts.sqn); |
| } |
| #endif |
| exit(0); |
| |
| } |