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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/>.
 *
 */

#include "msc_vlr_tests.h"

void test_ms_timeout_lu_auth_resp()
{
	comment_start();

	net->authentication_required = true;

	fake_time_start();

	btw("Location Update request causes a GSUP Send Auth Info request to HLR");
	lu_result_sent = RES_NONE;
	gsup_expect_tx("08010809710000004026f0");
	ms_sends_msg("050802008168000130089910070000006402");
	OSMO_ASSERT(gsup_tx_confirmed);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	btw("from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS");
	auth_request_sent = false;
	auth_request_expect_rand = "585df1ae287f6e273dce07090d61320b";
	auth_request_expect_autn = NULL;
	/* Based on a Ki of 000102030405060708090a0b0c0d0e0f */
	gsup_rx("0a"
		/* imsi */
		"0108" "09710000004026f0"
		/* auth vectors... */
		/* TL    TL     rand */
		"0322"  "2010" "585df1ae287f6e273dce07090d61320b"
		/*       TL     sres       TL     kc */
			"2104" "2d8b2c3e" "2208" "61855fb81fc2a800"
		,NULL);
	VERBOSE_ASSERT(auth_request_sent, == true, "%d");
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	BTW("MS fails to send an Authentication Response");

	btw("At first, we're still waiting");
	fake_time_passes(0, 423);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	btw("SUBSCR_CONN_TIMEOUT has passed, conn is gone.");
	EXPECT_CONN_COUNT(0);
	VERBOSE_ASSERT(lu_result_sent, == RES_REJECT, "%d");

	comment_end();
}

void test_ms_timeout_cm_auth_resp()
{
	comment_start();

	net->authentication_required = true;

	fake_time_start();

	btw("Location Update request causes a GSUP Send Auth Info request to HLR");
	lu_result_sent = RES_NONE;
	gsup_expect_tx("08010809710000004026f0");
	ms_sends_msg("050802008168000130089910070000006402");
	OSMO_ASSERT(gsup_tx_confirmed);
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	btw("from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS");
	auth_request_sent = false;
	auth_request_expect_rand = "585df1ae287f6e273dce07090d61320b";
	auth_request_expect_autn = NULL;
	/* Based on a Ki of 000102030405060708090a0b0c0d0e0f */
	gsup_rx("0a"
		/* imsi */
		"0108" "09710000004026f0"
		/* 5 auth vectors... */
		/* TL    TL     rand */
		"0322"  "2010" "585df1ae287f6e273dce07090d61320b"
		/*       TL     sres       TL     kc */
			"2104" "2d8b2c3e" "2208" "61855fb81fc2a800"
		"0322"  "2010" "12aca96fb4ffdea5c985cbafa9b6e18b"
			"2104" "20bde240" "2208" "07fa7502e07e1c00"
		"0322"  "2010" "e7c03ba7cf0e2fde82b2dc4d63077d42"
			"2104" "a29514ae" "2208" "e2b234f807886400"
		"0322"  "2010" "fa8f20b781b5881329d4fea26b1a3c51"
			"2104" "5afc8d72" "2208" "2392f14f709ae000"
		"0322"  "2010" "0fd4cc8dbe8715d1f439e304edfd68dc"
			"2104" "bc8d1c5b" "2208" "da7cdd6bfe2d7000",
		NULL);
	VERBOSE_ASSERT(auth_request_sent, == true, "%d");
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	btw("MS sends Authen Response, VLR accepts and sends GSUP LU Req to HLR");
	gsup_expect_tx("04010809710000004026f0");
	ms_sends_msg("05542d8b2c3e");
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	btw("HLR sends _INSERT_DATA_REQUEST, VLR responds with _INSERT_DATA_RESULT");
	gsup_rx("10010809710000004026f00804036470f1",
		"12010809710000004026f0");
	VERBOSE_ASSERT(lu_result_sent, == RES_NONE, "%d");

	btw("HLR also sends GSUP _UPDATE_LOCATION_RESULT");
	gsup_rx("06010809710000004026f0", NULL);

	btw("LU was successful, and the conn has already been closed");
	VERBOSE_ASSERT(lu_result_sent, == RES_ACCEPT, "%d");
	EXPECT_CONN_COUNT(0);

	BTW("after a while, a new conn sends a CM Service Request. VLR responds with Auth Req, 2nd auth vector");
	auth_request_sent = false;
	auth_request_expect_rand = "12aca96fb4ffdea5c985cbafa9b6e18b";
	cm_service_result_sent = RES_NONE;
	ms_sends_msg("05247803305886089910070000006402");
	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");

	BTW("MS fails to send an Authentication Response");

	btw("At first, we're still waiting");
	fake_time_passes(0, 423);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	EXPECT_CONN_COUNT(1);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_NONE, "%d");
	fake_time_passes(1, 235);
	btw("SUBSCR_CONN_TIMEOUT has passed, conn is gone.");
	EXPECT_CONN_COUNT(0);
	VERBOSE_ASSERT(cm_service_result_sent, == RES_REJECT, "%d");

	clear_vlr();
	comment_end();
}

msc_vlr_test_func_t msc_vlr_tests[] = {
	test_ms_timeout_lu_auth_resp,
	test_ms_timeout_cm_auth_resp,
	NULL
};