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-rw-r--r--tests/msc_vlr/msc_vlr_test_authen_reuse.c337
1 files changed, 337 insertions, 0 deletions
diff --git a/tests/msc_vlr/msc_vlr_test_authen_reuse.c b/tests/msc_vlr/msc_vlr_test_authen_reuse.c
new file mode 100644
index 000000000..103c90489
--- /dev/null
+++ b/tests/msc_vlr/msc_vlr_test_authen_reuse.c
@@ -0,0 +1,337 @@
+/* Osmocom MSC+VLR end-to-end tests */
+
+/* (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * All Rights Reserved
+ *
+ * Author: Neels Hofmeyr <nhofmeyr@sysmocom.de>
+ *
+ * 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 Affero 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/* NOTE that further auth re-use tests exist in msc_vlr_test_hlr_reject.c */
+
+#include "msc_vlr_tests.h"
+
+#define ASSERT_RELEASE_CLEAR(via_ran) \
+ switch (via_ran) { \
+ case RAN_GERAN_A: \
+ VERBOSE_ASSERT(bssap_clear_sent, == true, "%d"); \
+ break; \
+ case RAN_UTRAN_IU: \
+ VERBOSE_ASSERT(iu_release_sent, == true, "%d"); \
+ break; \
+ default: \
+ OSMO_ASSERT(false); \
+ break; \
+ }
+
+void _test_auth_reuse(enum ran_type via_ran,
+ int set_max_reuse_count,
+ int loop_requests_without_hlr,
+ bool final_request_with_hlr)
+{
+ struct vlr_subscr *vsub;
+ const char *imsi = "901700000010650";
+ int expected_use_count;
+ int i;
+
+ net->authentication_required = true;
+ net->vlr->cfg.assign_tmsi = true;
+ net->vlr->cfg.auth_tuple_max_reuse_count = set_max_reuse_count;
+ net->vlr->cfg.auth_reuse_old_sets_on_error = false;
+ rx_from_ran = via_ran;
+
+ btw("Location Update request causes a GSUP Send Auth Info request to HLR");
+ lu_result_sent = RES_NONE;
+ gsup_expect_tx("080108" "09710000000156f0");
+ ms_sends_msg("0508" /* MM LU */
+ "7" /* ciph key seq: no key available */
+ "0" /* LU type: normal */
+ "ffffff" "0000" /* LAI, LAC */
+ "57" /* classmark 1: R99, early classmark, no power lvl */
+ "089910070000106005" /* IMSI */
+ "3303575886" /* classmark 2 */
+ );
+ OSMO_ASSERT(gsup_tx_confirmed);
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+
+ btw("from HLR, rx _SEND_AUTH_INFO_RESULT, only one tuple; VLR sends Auth Req to MS");
+ /* based on auc_3g:
+ * K = 'EB215756028D60E3275E613320AEC880',
+ * OPC = 'FB2A3D1B360F599ABAB99DB8669F8308'
+ * SQN = 0
+ */
+ auth_request_sent = false;
+ auth_request_expect_rand = "39fa2f4e3d523d8619a73b4f65c3e14d";
+ auth_request_expect_autn = "8704f5ba55f30000d2ee44b22c8ea919";
+ gsup_rx("0a"
+ /* imsi */
+ "0108" "09710000000156f0"
+ /* TL TL rand */
+ "0362" "2010" "39fa2f4e3d523d8619a73b4f65c3e14d"
+ /* TL sres TL kc */
+ "2104" "9b36efdf" "2208" "059a4f668f6fbe39"
+ /* TL 3G IK */
+ "2310" "27497388b6cb044648f396aa155b95ef"
+ /* TL 3G CK */
+ "2410" "f64735036e5871319c679f4742a75ea1"
+ /* TL AUTN */
+ "2510" "8704f5ba55f30000d2ee44b22c8ea919"
+ /* TL RES */
+ "2708" "e229c19e791f2e41",
+ NULL);
+ VERBOSE_ASSERT(auth_request_sent, == true, "%d");
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+
+ if (via_ran == RAN_GERAN_A) {
+ btw("MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR");
+ gsup_expect_tx("04010809710000000156f0");
+ ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
+ VERBOSE_ASSERT(gsup_tx_confirmed, == true, "%d");
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+ } else {
+ /* On UTRAN */
+ btw("MS sends Authen Response, VLR accepts and sends SecurityModeControl");
+ cipher_mode_cmd_sent = false;
+ ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
+ VERBOSE_ASSERT(cipher_mode_cmd_sent, == true, "%d");
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+
+ btw("MS sends SecurityModeControl acceptance, VLR accepts and sends GSUP LU Req to HLR");
+ gsup_expect_tx("04010809710000000156f0");
+ ms_sends_security_mode_complete();
+ VERBOSE_ASSERT(gsup_tx_confirmed, == true, "%d");
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+ }
+
+ btw("HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT");
+ gsup_rx("10010809710000000156f00804032443f2",
+ "12010809710000000156f0");
+ VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
+
+ btw("HLR also sends GSUP _UPDATE_LOCATION_RESULT");
+ gsup_rx("06010809710000000156f0", NULL);
+
+ VERBOSE_ASSERT(lu_result_sent, == RES_ACCEPT, "%d");
+
+ btw("a LU Accept with a new TMSI was sent, waiting for TMSI Realloc Compl");
+ EXPECT_CONN_COUNT(1);
+ EXPECT_ACCEPTED(false);
+ thwart_rx_non_initial_requests();
+
+ btw("even though the TMSI is not acked, we can already find the subscr with it");
+ vsub = vlr_subscr_find_by_tmsi(net->vlr, 0x03020100);
+ VERBOSE_ASSERT(vsub != NULL, == true, "%d");
+ VERBOSE_ASSERT(strcmp(vsub->imsi, imsi), == 0, "%d");
+ VERBOSE_ASSERT(vsub->tmsi_new, == 0x03020100, "0x%08x");
+ VERBOSE_ASSERT(vsub->tmsi, == GSM_RESERVED_TMSI, "0x%08x");
+ vlr_subscr_put(vsub);
+
+ btw("MS sends TMSI Realloc Complete");
+ expect_release_clear(via_ran);
+ ms_sends_msg("055b");
+ ASSERT_RELEASE_CLEAR(via_ran);
+
+ btw("LU was successful, and the conn has already been closed");
+ EXPECT_CONN_COUNT(0);
+
+ expected_use_count = 1;
+
+ for (i = 0; i < loop_requests_without_hlr; i++, expected_use_count++) {
+ BTW("Now the auth tuple has use_count == %d", expected_use_count);
+ vsub = vlr_subscr_find_by_imsi(net->vlr, imsi);
+ OSMO_ASSERT(vsub);
+ OSMO_ASSERT(vsub->last_tuple);
+ VERBOSE_ASSERT(vsub->last_tuple->use_count, == expected_use_count, "%d");
+ vlr_subscr_put(vsub);
+
+ BTW("after a while, a new conn sends a CM Service Request. VLR responds with Auth Req,"
+ " and reuses old auth vector");
+ auth_request_sent = true;
+ cm_service_result_sent = RES_NONE;
+ ms_sends_msg("052478"
+ "03575886" /* classmark 2 */
+ "089910070000106005" /* IMSI */);
+ OSMO_ASSERT(g_conn);
+ OSMO_ASSERT(g_conn->conn_fsm);
+ OSMO_ASSERT(g_conn->vsub);
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ VERBOSE_ASSERT(auth_request_sent, == true, "%d");
+
+ if (via_ran == RAN_GERAN_A) {
+ btw("MS sends Authen Response, VLR accepts with a CM Service Accept");
+ gsup_expect_tx(NULL);
+ ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_ACCEPT, "%d");
+ } else {
+ /* On UTRAN */
+ btw("MS sends Authen Response, VLR accepts and sends SecurityModeControl");
+ cipher_mode_cmd_sent = false;
+ ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
+ VERBOSE_ASSERT(cipher_mode_cmd_sent, == true, "%d");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ btw("MS sends SecurityModeControl acceptance, VLR accepts; above Ciphering is an implicit CM Service Accept");
+ ms_sends_security_mode_complete();
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ }
+
+ btw("a USSD request is serviced");
+ dtap_expect_tx_ussd("Your extension is 42342\r");
+ expect_release_clear(via_ran);
+ ms_sends_msg("0b3b1c15a11302010002013b300b04010f0406aa510c061b017f0100");
+ OSMO_ASSERT(dtap_tx_confirmed);
+ ASSERT_RELEASE_CLEAR(via_ran);
+
+ btw("all requests serviced, conn has been released");
+ EXPECT_CONN_COUNT(0);
+ }
+
+ if (final_request_with_hlr) {
+ BTW("Now the auth tuple has use_count == %d, as much as is allowed.", expected_use_count);
+ vsub = vlr_subscr_find_by_imsi(net->vlr, imsi);
+ OSMO_ASSERT(vsub);
+ OSMO_ASSERT(vsub->last_tuple);
+ VERBOSE_ASSERT(vsub->last_tuple->use_count, == expected_use_count, "%d");
+ vlr_subscr_put(vsub);
+
+ BTW("after a while, a new conn sends a CM Service Request. VLR responds with Auth Req,"
+ " and needs to request a second auth vector from HLR");
+ auth_request_sent = false;
+ cm_service_result_sent = RES_NONE;
+ gsup_expect_tx("080108" "09710000000156f0");
+ ms_sends_msg("052478"
+ "03575886" /* classmark 2 */
+ "089910070000106005" /* IMSI */);
+ OSMO_ASSERT(g_conn);
+ OSMO_ASSERT(g_conn->conn_fsm);
+ OSMO_ASSERT(g_conn->vsub);
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ VERBOSE_ASSERT(auth_request_sent, == false, "%d");
+ VERBOSE_ASSERT(gsup_tx_confirmed, == true, "%d");
+
+ btw("from HLR, rx _SEND_AUTH_INFO_RESULT, second tuple; VLR sends Auth Req to MS");
+ auth_request_expect_rand = "c187a53a5e6b9d573cac7c74451fd46d";
+ auth_request_expect_autn = "1843a645b98d00005b2d666af46c45d9";
+ gsup_rx("0a"
+ /* imsi */
+ "0108" "09710000000156f0"
+ /* TL TL rand */
+ /* TL sres TL kc */
+ /* TL 3G IK */
+ /* TL 3G CK */
+ /* TL AUTN */
+ /* TL RES */
+ "0362" "2010" "c187a53a5e6b9d573cac7c74451fd46d"
+ "2104" "85aa3130" "2208" "d3d50a000bf04f6e"
+ "2310" "1159ec926a50e98c034a6b7d7c9f418d"
+ "2410" "df3a03d9ca5335641efc8e36d76cd20b"
+ "2510" "1843a645b98d00005b2d666af46c45d9"
+ "2708" "7db47cf7f81e4dc7",
+ NULL);
+ VERBOSE_ASSERT(auth_request_sent, == true, "%d");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ if (via_ran == RAN_GERAN_A) {
+ btw("MS sends Authen Response, VLR accepts with a CM Service Accept");
+ gsup_expect_tx(NULL);
+ ms_sends_msg("0554" "7db47cf7" "2104" "f81e4dc7"); /* 2nd vector's res, s.a. */
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_ACCEPT, "%d");
+ } else {
+ /* On UTRAN */
+ btw("MS sends Authen Response, VLR accepts and sends SecurityModeControl");
+ cipher_mode_cmd_sent = false;
+ ms_sends_msg("0554" "7db47cf7" "2104" "f81e4dc7"); /* 2nd vector's res, s.a. */
+ VERBOSE_ASSERT(cipher_mode_cmd_sent, == true, "%d");
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+
+ btw("MS sends SecurityModeControl acceptance, VLR accepts; above Ciphering is an implicit CM Service Accept");
+ ms_sends_security_mode_complete();
+ VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
+ }
+
+ btw("a USSD request is serviced");
+ dtap_expect_tx_ussd("Your extension is 42342\r");
+ expect_release_clear(via_ran);
+ ms_sends_msg("0b3b1c15a11302010002013b300b04010f0406aa510c061b017f0100");
+ OSMO_ASSERT(dtap_tx_confirmed);
+ ASSERT_RELEASE_CLEAR(via_ran);
+
+ btw("all requests serviced, conn has been released");
+ EXPECT_CONN_COUNT(0);
+ }
+
+ BTW("subscriber detaches");
+ expect_release_clear(via_ran);
+ ms_sends_msg("050130"
+ "089910070000106005" /* IMSI */);
+ ASSERT_RELEASE_CLEAR(via_ran);
+
+ EXPECT_CONN_COUNT(0);
+ clear_vlr();
+}
+
+void test_auth_use_twice_geran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_GERAN_A, 1, 1, true);
+ comment_end();
+}
+
+void test_auth_use_twice_utran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_UTRAN_IU, 1, 1, true);
+ comment_end();
+}
+
+void test_auth_use_infinitely_geran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_GERAN_A, -1, 3, false);
+ comment_end();
+}
+
+void test_auth_use_infinitely_utran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_UTRAN_IU, -1, 3, false);
+ comment_end();
+}
+
+void test_no_auth_reuse_geran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_GERAN_A, 0, 0, true);
+ comment_end();
+}
+
+void test_no_auth_reuse_utran()
+{
+ comment_start();
+ _test_auth_reuse(RAN_UTRAN_IU, 0, 0, true);
+ comment_end();
+}
+
+msc_vlr_test_func_t msc_vlr_tests[] = {
+ test_auth_use_twice_geran,
+ test_auth_use_twice_utran,
+ test_auth_use_infinitely_geran,
+ test_auth_use_infinitely_utran,
+ test_no_auth_reuse_geran,
+ test_no_auth_reuse_utran,
+ NULL
+};