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/* 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; \
}
static 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");
expect_security_mode_ctrl(NULL, "27497388b6cb044648f396aa155b95ef");
ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
VERBOSE_ASSERT(security_mode_ctrl_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->fi);
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");
expect_security_mode_ctrl(NULL, "27497388b6cb044648f396aa155b95ef");
ms_sends_msg("0554" "e229c19e" "2104" "791f2e41");
VERBOSE_ASSERT(security_mode_ctrl_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->fi);
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");
expect_security_mode_ctrl(NULL, "1159ec926a50e98c034a6b7d7c9f418d");
ms_sends_msg("0554" "7db47cf7" "2104" "f81e4dc7"); /* 2nd vector's res, s.a. */
VERBOSE_ASSERT(security_mode_ctrl_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();
}
static void test_auth_use_twice_geran()
{
comment_start();
_test_auth_reuse(RAN_GERAN_A, 1, 1, true);
comment_end();
}
static void test_auth_use_twice_utran()
{
comment_start();
_test_auth_reuse(RAN_UTRAN_IU, 1, 1, true);
comment_end();
}
static void test_auth_use_infinitely_geran()
{
comment_start();
_test_auth_reuse(RAN_GERAN_A, -1, 3, false);
comment_end();
}
static void test_auth_use_infinitely_utran()
{
comment_start();
_test_auth_reuse(RAN_UTRAN_IU, -1, 3, false);
comment_end();
}
static void test_no_auth_reuse_geran()
{
comment_start();
_test_auth_reuse(RAN_GERAN_A, 0, 0, true);
comment_end();
}
static 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
};
|
