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-rw-r--r--utils/Makefile.am5
-rw-r--r--utils/osmo-auc-gen.c183
2 files changed, 187 insertions, 1 deletions
diff --git a/utils/Makefile.am b/utils/Makefile.am
index 22903d97..4e7869e4 100644
--- a/utils/Makefile.am
+++ b/utils/Makefile.am
@@ -1,7 +1,10 @@
if ENABLE_UTILITIES
INCLUDES = $(all_includes) -I$(top_srcdir)/include
-noinst_PROGRAMS = osmo-arfcn
+noinst_PROGRAMS = osmo-arfcn osmo-auc-gen
osmo_arfcn_SOURCES = osmo-arfcn.c
osmo_arfcn_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la
+
+osmo_auc_gen_SOURCES = osmo-auc-gen.c
+osmo_auc_gen_LDADD = $(top_builddir)/src/libosmocore.la $(top_builddir)/src/gsm/libosmogsm.la
endif
diff --git a/utils/osmo-auc-gen.c b/utils/osmo-auc-gen.c
new file mode 100644
index 00000000..90976970
--- /dev/null
+++ b/utils/osmo-auc-gen.c
@@ -0,0 +1,183 @@
+/* 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.gsm.ki,
+ sizeof(test_aud.gsm.ki));
+ break;
+ case OSMO_AUTH_TYPE_UMTS:
+ rc = osmo_hexparse(optarg, test_aud.umts.k,
+ sizeof(test_aud.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.umts.opc,
+ sizeof(test_aud.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.umts.amf,
+ sizeof(test_aud.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.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.umts.sqn);
+ }
+#endif
+ exit(0);
+
+}