1 files changed, 0 insertions, 805 deletions

diff --git a/tests/msc_vlr/msc_vlr_tests.c b/tests/msc_vlr/msc_vlr_tests.c
deleted file mode 100644
index 71f971352..000000000
--- a/tests/msc_vlr/msc_vlr_tests.c
+++ /dev/null
@@ -1,805 +0,0 @@
-/* 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 <getopt.h>
-#include <stdlib.h>
-
-#include <osmocom/core/logging.h>
-#include <osmocom/core/utils.h>
-#include <osmocom/core/msgb.h>
-#include <osmocom/core/application.h>
-#include <osmocom/gsm/protocol/gsm_04_11.h>
-#include <osmocom/gsm/gsup.h>
-#include <openbsc/gsup_client.h>
-#include <openbsc/gsm_04_11.h>
-#include <openbsc/bsc_subscriber.h>
-#include <openbsc/debug.h>
-
-#if BUILD_IU
-#include <openbsc/iucs_ranap.h>
-#include <osmocom/ranap/iu_client.h>
-#else
-#include <openbsc/iu_dummy.h>
-#endif
-
-#include "msc_vlr_tests.h"
-
-bool _log_lines = false;
-
-struct gsm_network *net = NULL;
-
-struct gsm_bts *the_bts;
-
-const char *gsup_tx_expected = NULL;
-bool gsup_tx_confirmed;
-
-struct msgb *dtap_tx_expected = NULL;
-bool dtap_tx_confirmed;
-
-enum result_sent lu_result_sent;
-enum result_sent cm_service_result_sent;
-bool auth_request_sent;
-const char *auth_request_expect_rand;
-const char *auth_request_expect_autn;
-bool cipher_mode_cmd_sent;
-bool cipher_mode_cmd_sent_with_imeisv;
-
-bool iu_release_expected = false;
-bool iu_release_sent = false;
-bool bssap_clear_expected = false;
-bool bssap_clear_sent = false;
-
-struct msgb *msgb_from_hex(const char *label, uint16_t size, const char *hex)
-{
-	struct msgb *msg = msgb_alloc(size, label);
-	unsigned char *rc;
-	msg->l2h = msg->head;
-	rc = msgb_put(msg, osmo_hexparse(hex, msg->head, msgb_tailroom(msg)));
-	OSMO_ASSERT(rc == msg->l2h);
-	return msg;
-}
-
-const char *gh_type_name(struct gsm48_hdr *gh)
-{
-	return gsm48_pdisc_msgtype_name(gsm48_hdr_pdisc(gh),
-					gsm48_hdr_msg_type(gh));
-}
-
-const char *msg_type_name(struct msgb *msg)
-{
-	return gh_type_name((void*)msg->data);
-}
-
-void dtap_expect_tx(const char *hex)
-{
-	/* Has the previously expected dtap been received? */
-	OSMO_ASSERT(!dtap_tx_expected);
-	if (!hex)
-		return;
-	dtap_tx_expected = msgb_from_hex("dtap_tx_expected", 1024, hex);
-	dtap_tx_confirmed = false;
-}
-
-void dtap_expect_tx_ussd(char *ussd_text)
-{
-	uint8_t ussd_enc[128];
-	int len;
-	/* header */
-	char ussd_msg_hex[128] = "8b2a1c27a225020100302002013b301b04010f0416";
-
-	log("expecting USSD:\n  %s", ussd_text);
-	/* append encoded USSD text */
-	gsm_7bit_encode_n_ussd(ussd_enc, sizeof(ussd_enc), ussd_text,
-			       &len);
-	strncat(ussd_msg_hex, osmo_hexdump_nospc(ussd_enc, len),
-		sizeof(ussd_msg_hex) - strlen(ussd_msg_hex));
-	dtap_expect_tx(ussd_msg_hex);
-}
-
-int vlr_gsupc_read_cb(struct gsup_client *gsupc, struct msgb *msg);
-
-void gsup_rx(const char *rx_hex, const char *expect_tx_hex)
-{
-	int rc;
-	struct msgb *msg;
-	const char *label;
-
-	gsup_expect_tx(expect_tx_hex);
-
-	msg = msgb_from_hex("gsup", 1024, rx_hex);
-	label = osmo_gsup_message_type_name(msg->l2h[0]);
-	fprintf(stderr, "<-- GSUP rx %s: %s\n", label,
-		osmo_hexdump_nospc(msgb_l2(msg), msgb_l2len(msg)));
-	rc = vlr_gsupc_read_cb(net->vlr->gsup_client, msg);
-	fprintf(stderr, "<-- GSUP rx %s: vlr_gsupc_read_cb() returns %d\n",
-		label, rc);
-	if (expect_tx_hex)
-		OSMO_ASSERT(gsup_tx_confirmed);
-	talloc_free(msg);
-}
-
-bool conn_exists(struct gsm_subscriber_connection *conn)
-{
-	struct gsm_subscriber_connection *c;
-	llist_for_each_entry(c, &net->subscr_conns, entry) {
-		if (c == conn)
-			return true;
-	}
-	return false;
-}
-
-enum ran_type rx_from_ran = RAN_GERAN_A;
-
-struct gsm_subscriber_connection *conn_new(void)
-{
-	struct gsm_subscriber_connection *conn;
-	conn = msc_subscr_con_allocate(net);
-	conn->bts = the_bts;
-	conn->via_ran = rx_from_ran;
-	if (conn->via_ran == RAN_UTRAN_IU) {
-		struct ranap_ue_conn_ctx *ue_ctx = talloc_zero(conn, struct ranap_ue_conn_ctx);
-		*ue_ctx = (struct ranap_ue_conn_ctx){
-			.conn_id = 42,
-		};
-		conn->iu.ue_ctx = ue_ctx;
-	}
-	return conn;
-}
-
-struct gsm_subscriber_connection *g_conn = NULL;
-
-void rx_from_ms(struct msgb *msg)
-{
-	int rc;
-
-	struct gsm48_hdr *gh = msgb_l3(msg);
-
-	log("MSC <--%s-- MS: %s",
-	    ran_type_name(rx_from_ran),
-	    gh_type_name(gh));
-
-	if (g_conn && !conn_exists(g_conn))
-		g_conn = NULL;
-
-	if (!g_conn) {
-		log("new conn");
-		g_conn = conn_new();
-		rc = msc_compl_l3(g_conn, msg, 23);
-		if (rc == BSC_API_CONN_POL_REJECT) {
-			msc_subscr_con_free(g_conn);
-			g_conn = NULL;
-		}
-	} else {
-		if ((gsm48_hdr_pdisc(gh) == GSM48_PDISC_RR)
-		    && (gsm48_hdr_msg_type(gh) == GSM48_MT_RR_CIPH_M_COMPL))
-			msc_cipher_mode_compl(g_conn, msg, 0);
-		else
-			msc_dtap(g_conn, 23, msg);
-	}
-
-	if (g_conn && !conn_exists(g_conn))
-		g_conn = NULL;
-}
-
-void ms_sends_msg(const char *hex)
-{
-	struct msgb *msg;
-
-	msg = msgb_from_hex("ms_sends_msg", 1024, hex);
-	msg->l1h = msg->l2h = msg->l3h = msg->data;
-	rx_from_ms(msg);
-	talloc_free(msg);
-}
-
-int ms_sends_msg_fake(uint8_t pdisc, uint8_t msg_type)
-{
-	int rc;
-	struct msgb *msg;
-	struct gsm48_hdr *gh;
-
-	msg = msgb_alloc(1024, "ms_sends_msg_fake");
-	msg->l1h = msg->l2h = msg->l3h = msg->data;
-
-	gh = (struct gsm48_hdr*)msgb_put(msg, sizeof(*gh));
-	gh->proto_discr = pdisc;
-	gh->msg_type = msg_type;
-	/* some amount of data, whatever */
-	msgb_put(msg, 123);
-
-	rc = gsm0408_dispatch(g_conn, msg);
-
-	talloc_free(msg);
-	return rc;
-}
-
-void thwart_rx_non_initial_requests()
-{
-	log("requests shall be thwarted");
-	OSMO_ASSERT(ms_sends_msg_fake(GSM48_PDISC_CC, GSM48_MT_CC_SETUP) == -EACCES);
-	OSMO_ASSERT(ms_sends_msg_fake(GSM48_PDISC_MM, 0x33 /* nonexistent */) == -EACCES);
-	OSMO_ASSERT(ms_sends_msg_fake(GSM48_PDISC_RR, GSM48_MT_RR_SYSINFO_1) == -EACCES);
-	OSMO_ASSERT(ms_sends_msg_fake(GSM48_PDISC_SMS, GSM411_MT_CP_DATA) == -EACCES);
-}
-
-void send_sms(struct vlr_subscr *receiver,
-	      struct vlr_subscr *sender,
-	      char *str)
-{
-	struct gsm_sms *sms = sms_from_text(receiver, sender, 0, str);
-	gsm411_send_sms_subscr(receiver, sms);
-}
-
-unsigned char next_rand_byte = 0;
-/* override, requires '-Wl,--wrap=RAND_bytes' */
-int __real_RAND_bytes(unsigned char *buf, int num);
-int __wrap_RAND_bytes(unsigned char *buf, int num)
-{
-	int i;
-	for (i = 0; i < num; i++)
-		buf[i] = next_rand_byte++;
-	return 1;
-}
-
-/* override, requires '-Wl,--wrap=gsm340_gen_scts' */
-void __real_gsm340_gen_scts(uint8_t *scts, time_t time);
-void __wrap_gsm340_gen_scts(uint8_t *scts, time_t time)
-{
-	/* Write fixed time bytes for deterministic test results */
-	osmo_hexparse("07101000000000", scts, 7);
-}
-
-const char *paging_expecting_imsi = NULL;
-uint32_t paging_expecting_tmsi;
-bool paging_sent;
-bool paging_stopped;
-
-void paging_expect_imsi(const char *imsi)
-{
-	paging_expecting_imsi = imsi;
-	paging_expecting_tmsi = GSM_RESERVED_TMSI;
-}
-
-void paging_expect_tmsi(uint32_t tmsi)
-{
-	paging_expecting_tmsi = tmsi;
-	paging_expecting_imsi = NULL;
-}
-
-int _paging_sent(enum ran_type via_ran, const char *imsi, uint32_t tmsi, uint32_t lac)
-{
-	log("%s sends out paging request to IMSI %s, TMSI 0x%08x, LAC %u",
-	    ran_type_name(via_ran), imsi, tmsi, lac);
-	OSMO_ASSERT(paging_expecting_imsi || (paging_expecting_tmsi != GSM_RESERVED_TMSI));
-	if (paging_expecting_imsi)
-		VERBOSE_ASSERT(strcmp(paging_expecting_imsi, imsi), == 0, "%d");
-	if (paging_expecting_tmsi != GSM_RESERVED_TMSI) {
-		VERBOSE_ASSERT(paging_expecting_tmsi, == tmsi, "0x%08x");
-	}
-	paging_sent = true;
-	paging_stopped = false;
-	return 1;
-}
-
-/* override, requires '-Wl,--wrap=ranap_iu_page_cs' */
-int __real_ranap_iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac);
-int __wrap_ranap_iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac)
-{
-	return _paging_sent(RAN_UTRAN_IU, imsi, tmsi ? *tmsi : GSM_RESERVED_TMSI, lac);
-}
-
-/* override, requires '-Wl,--wrap=a_iface_tx_paging' */
-int __real_a_iface_tx_paging(const char *imsi, uint32_t tmsi, uint16_t lac);
-int __wrap_a_iface_tx_paging(const char *imsi, uint32_t tmsi, uint16_t lac)
-{
-	return _paging_sent(RAN_GERAN_A, imsi, tmsi, lac);
-}
-
-/* override, requires '-Wl,--wrap=msc_stop_paging' */
-void __real_msc_stop_paging(struct vlr_subscr *vsub);
-void __wrap_msc_stop_paging(struct vlr_subscr *vsub)
-{
-	paging_stopped = true;
-}
-
-void clear_vlr()
-{
-	struct vlr_subscr *vsub, *n;
-	llist_for_each_entry_safe(vsub, n, &net->vlr->subscribers, list) {
-		vlr_subscr_free(vsub);
-	}
-
-	net->authentication_required = false;
-	net->a5_encryption = VLR_CIPH_NONE;
-	net->vlr->cfg.check_imei_rqd = false;
-	net->vlr->cfg.assign_tmsi = false;
-	net->vlr->cfg.retrieve_imeisv_early = false;
-	net->vlr->cfg.retrieve_imeisv_ciphered = false;
-
-	rx_from_ran = RAN_GERAN_A;
-	auth_request_sent = false;
-	auth_request_expect_rand = NULL;
-	auth_request_expect_autn = NULL;
-
-	next_rand_byte = 0;
-
-	iu_release_expected = false;
-	iu_release_sent = false;
-	bssap_clear_expected = false;
-	bssap_clear_sent = false;
-
-	osmo_gettimeofday_override = false;
-}
-
-static struct log_info_cat test_categories[] = {
-	[DMSC] = {
-		.name = "DMSC",
-		.description = "Mobile Switching Center",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DRLL] = {
-		.name = "DRLL",
-		.description = "A-bis Radio Link Layer (RLL)",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DMM] = {
-		.name = "DMM",
-		.description = "Layer3 Mobility Management (MM)",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DRR] = {
-		.name = "DRR",
-		.description = "Layer3 Radio Resource (RR)",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DCC] = {
-		.name = "DCC",
-		.description = "Layer3 Call Control (CC)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DMM] = {
-		.name = "DMM",
-		.description = "Layer3 Mobility Management (MM)",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DVLR] = {
-		.name = "DVLR",
-		.description = "Visitor Location Register",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DREF] = {
-		.name = "DREF",
-		.description = "Reference Counting",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DPAG]	= {
-		.name = "DPAG",
-		.description = "Paging Subsystem",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-	[DIUCS] = {
-		.name = "DIUCS",
-		.description = "Iu-CS Protocol",
-		.enabled = 1, .loglevel = LOGL_DEBUG,
-	},
-};
-
-static struct log_info info = {
-	.cat = test_categories,
-	.num_cat = ARRAY_SIZE(test_categories),
-};
-
-extern void *tall_bsc_ctx;
-
-int fake_mncc_recv(struct gsm_network *net, struct msgb *msg)
-{
-	fprintf(stderr, "rx MNCC\n");
-	return 0;
-}
-
-/* override, requires '-Wl,--wrap=gsup_client_create' */
-struct gsup_client *
-__real_gsup_client_create(const char *ip_addr, unsigned int tcp_port,
-			  gsup_client_read_cb_t read_cb,
-			  struct oap_client_config *oap_config);
-struct gsup_client *
-__wrap_gsup_client_create(const char *ip_addr, unsigned int tcp_port,
-			  gsup_client_read_cb_t read_cb,
-			  struct oap_client_config *oap_config)
-{
-	struct gsup_client *gsupc;
-	gsupc = talloc_zero(tall_bsc_ctx, struct gsup_client);
-	OSMO_ASSERT(gsupc);
-	return gsupc;
-}
-
-/* override, requires '-Wl,--wrap=gsup_client_send' */
-int __real_gsup_client_send(struct gsup_client *gsupc, struct msgb *msg);
-int __wrap_gsup_client_send(struct gsup_client *gsupc, struct msgb *msg)
-{
-	const char *is = osmo_hexdump_nospc(msg->data, msg->len);
-	fprintf(stderr, "GSUP --> HLR: %s: %s\n",
-		osmo_gsup_message_type_name(msg->data[0]), is);
-
-	OSMO_ASSERT(gsup_tx_expected);
-	if (strcmp(gsup_tx_expected, is)) {
-		fprintf(stderr, "Mismatch! Expected:\n%s\n", gsup_tx_expected);
-		abort();
-	}
-
-	talloc_free(msg);
-	gsup_tx_confirmed = true;
-	gsup_tx_expected = NULL;
-	return 0;
-}
-
-int _validate_dtap(struct msgb *msg, enum ran_type to_ran)
-{
-	btw("DTAP --%s--> MS: %s: %s",
-	    ran_type_name(to_ran), msg_type_name(msg),
-	    osmo_hexdump_nospc(msg->data, msg->len));
-
-	OSMO_ASSERT(dtap_tx_expected);
-	if (msg->len != dtap_tx_expected->len
-	    || memcmp(msg->data, dtap_tx_expected->data, msg->len)) {
-		fprintf(stderr, "Mismatch! Expected:\n%s\n",
-		       osmo_hexdump_nospc(dtap_tx_expected->data,
-					  dtap_tx_expected->len));
-		abort();
-	}
-
-	btw("DTAP matches expected message");
-
-	talloc_free(msg);
-	dtap_tx_confirmed = true;
-	talloc_free(dtap_tx_expected);
-	dtap_tx_expected = NULL;
-	return 0;
-}
-
-/* override, requires '-Wl,--wrap=ranap_iu_tx' */
-int __real_ranap_iu_tx(struct msgb *msg, uint8_t sapi);
-int __wrap_ranap_iu_tx(struct msgb *msg, uint8_t sapi)
-{
-	return _validate_dtap(msg, RAN_UTRAN_IU);
-}
-
-/* override, requires '-Wl,--wrap=ranap_iu_tx_release' */
-int __real_ranap_iu_tx_release(struct ranap_ue_conn_ctx *ctx, const struct RANAP_Cause *cause);
-int __wrap_ranap_iu_tx_release(struct ranap_ue_conn_ctx *ctx, const struct RANAP_Cause *cause)
-{
-	btw("Iu Release --%s--> MS", ran_type_name(RAN_UTRAN_IU));
-	OSMO_ASSERT(iu_release_expected);
-	iu_release_expected = false;
-	iu_release_sent = true;
-	return 0;
-}
-
-/* override, requires '-Wl,--wrap=iu_tx_common_id' */
-int __real_ranap_iu_tx_common_id(struct ranap_ue_conn_ctx *ue_ctx, const char *imsi);
-int __wrap_ranap_iu_tx_common_id(struct ranap_ue_conn_ctx *ue_ctx, const char *imsi)
-{
-	btw("Iu Common ID --%s--> MS (IMSI=%s)", ran_type_name(RAN_UTRAN_IU), imsi);
-	return 0;
-}
-
-/* override, requires '-Wl,--wrap=a_iface_tx_dtap' */
-int __real_a_iface_tx_dtap(struct msgb *msg);
-int __wrap_a_iface_tx_dtap(struct msgb *msg)
-{
-	return _validate_dtap(msg, RAN_GERAN_A);
-}
-
-/* override, requires '-Wl,--wrap=a_iface_tx_clear_cmd' */
-int __real_a_iface_tx_clear_cmd(struct gsm_subscriber_connection *conn);
-int __wrap_a_iface_tx_clear_cmd(struct gsm_subscriber_connection *conn)
-{
-	btw("BSSAP Clear --%s--> MS", ran_type_name(RAN_GERAN_A));
-	OSMO_ASSERT(bssap_clear_expected);
-	bssap_clear_expected = false;
-	bssap_clear_sent = true;
-	return 0;
-}
-
-static int fake_vlr_tx_lu_acc(void *msc_conn_ref, uint32_t send_tmsi)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	if (send_tmsi == GSM_RESERVED_TMSI)
-		btw("sending LU Accept for %s", vlr_subscr_name(conn->vsub));
-	else
-		btw("sending LU Accept for %s, with TMSI 0x%08x",
-		    vlr_subscr_name(conn->vsub), send_tmsi);
-	lu_result_sent |= RES_ACCEPT;
-	return 0;
-}
-
-static int fake_vlr_tx_lu_rej(void *msc_conn_ref, uint8_t cause)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	btw("sending LU Reject for %s, cause %u", vlr_subscr_name(conn->vsub), cause);
-	lu_result_sent |= RES_REJECT;
-	return 0;
-}
-
-static int fake_vlr_tx_cm_serv_acc(void *msc_conn_ref)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	btw("sending CM Service Accept for %s", vlr_subscr_name(conn->vsub));
-	cm_service_result_sent |= RES_ACCEPT;
-	return 0;
-}
-
-static int fake_vlr_tx_cm_serv_rej(void *msc_conn_ref,
-				   enum vlr_proc_arq_result result)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	btw("sending CM Service Reject for %s, result %s",
-	    vlr_subscr_name(conn->vsub),
-	    vlr_proc_arq_result_name(result));
-	cm_service_result_sent |= RES_REJECT;
-	return 0;
-}
-
-static int fake_vlr_tx_auth_req(void *msc_conn_ref, struct gsm_auth_tuple *at,
-				bool send_autn)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	char *hex;
-	bool ok = true;
-	btw("sending %s Auth Request for %s: tuple use_count=%d key_seq=%d auth_types=0x%x and...",
-	    send_autn? "UMTS" : "GSM", vlr_subscr_name(conn->vsub),
-	    at->use_count, at->key_seq, at->vec.auth_types);
-
-	hex = osmo_hexdump_nospc((void*)&at->vec.rand, sizeof(at->vec.rand));
-	btw("...rand=%s", hex);
-	if (!auth_request_expect_rand
-	    || strcmp(hex, auth_request_expect_rand) != 0) {
-		ok = false;
-		log("FAILURE: expected rand=%s",
-		    auth_request_expect_rand ? auth_request_expect_rand : "-");
-	}
-
-	if (send_autn) {
-		hex = osmo_hexdump_nospc((void*)&at->vec.autn, sizeof(at->vec.autn));
-		btw("...autn=%s", hex);
-		if (!auth_request_expect_autn
-		    || strcmp(hex, auth_request_expect_autn) != 0) {
-			ok = false;
-			log("FAILURE: expected autn=%s",
-			    auth_request_expect_autn ? auth_request_expect_autn : "-");
-		}
-	} else if (auth_request_expect_autn) {
-		ok = false;
-		log("FAILURE: no AUTN sent, expected AUTN = %s",
-		    auth_request_expect_autn);
-	}
-
-	if (send_autn)
-		btw("...expecting res=%s",
-		    osmo_hexdump_nospc((void*)&at->vec.res, at->vec.res_len));
-	else
-		btw("...expecting sres=%s",
-		    osmo_hexdump_nospc((void*)&at->vec.sres, sizeof(at->vec.sres)));
-
-	auth_request_sent = ok;
-	return 0;
-}
-
-static int fake_vlr_tx_auth_rej(void *msc_conn_ref)
-{
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	btw("sending Auth Reject for %s", vlr_subscr_name(conn->vsub));
-	return 0;
-}
-
-static int fake_vlr_tx_ciph_mode_cmd(void *msc_conn_ref, enum vlr_ciph ciph,
-				     bool retrieve_imeisv)
-{
-	/* FIXME: we actually would like to see the message bytes checked here,
-	 * not possible while msc_vlr_set_ciph_mode() calls
-	 * gsm0808_cipher_mode() directly. When the MSCSPLIT is ready, check
-	 * the tx bytes in the sense of dtap_expect_tx() above. */
-	struct gsm_subscriber_connection *conn = msc_conn_ref;
-	switch (conn->via_ran) {
-	case RAN_GERAN_A:
-		btw("sending Ciphering Mode Command for %s: cipher=%s kc=%s"
-		    " retrieve_imeisv=%d",
-		    vlr_subscr_name(conn->vsub),
-		    vlr_ciph_name(conn->network->a5_encryption),
-		    osmo_hexdump_nospc(conn->vsub->last_tuple->vec.kc, 8),
-		    retrieve_imeisv);
-		break;
-	case RAN_UTRAN_IU:
-		btw("sending SecurityModeControl for %s",
-		    vlr_subscr_name(conn->vsub));
-		break;
-	default:
-		btw("UNKNOWN RAN TYPE %d", conn->via_ran);
-		OSMO_ASSERT(false);
-		return -1;
-	}
-	cipher_mode_cmd_sent = true;
-	cipher_mode_cmd_sent_with_imeisv = retrieve_imeisv;
-	return 0;
-}
-
-void ms_sends_security_mode_complete()
-{
-	OSMO_ASSERT(g_conn);
-	OSMO_ASSERT(g_conn->via_ran == RAN_UTRAN_IU);
-	OSMO_ASSERT(g_conn->iu.ue_ctx);
-	msc_rx_sec_mode_compl(g_conn);
-}
-
-const struct timeval fake_time_start_time = { 123, 456 };
-
-void fake_time_start()
-{
-	osmo_gettimeofday_override_time = fake_time_start_time;
-	osmo_gettimeofday_override = true;
-	fake_time_passes(0, 0);
-}
-
-void check_talloc(void *msgb_ctx, void *tall_bsc_ctx, int expected_blocks)
-{
-	talloc_report_full(msgb_ctx, stderr);
-	fprintf(stderr, "talloc_total_blocks(tall_bsc_ctx) == %zu\n",
-		talloc_total_blocks(tall_bsc_ctx));
-	if (talloc_total_blocks(tall_bsc_ctx) != expected_blocks)
-		talloc_report_full(tall_bsc_ctx, stderr);
-	fprintf(stderr, "\n");
-}
-
-static struct {
-	bool verbose;
-	int run_test_nr;
-} cmdline_opts = {
-	.verbose = false,
-	.run_test_nr = -1,
-};
-
-static void print_help(const char *program)
-{
-	printf("Usage:\n"
-	       "  %s [-v] [N [N...]]\n"
-	       "Options:\n"
-	       "  -h --help      show this text.\n"
-	       "  -v --verbose   print source file and line numbers\n"
-	       "  N              run only the Nth test (first test is N=1)\n",
-	       program
-	       );
-}
-
-static void handle_options(int argc, char **argv)
-{
-	while (1) {
-		int option_index = 0, c;
-		static struct option long_options[] = {
-			{"help", 0, 0, 'h'},
-			{"verbose", 1, 0, 'v'},
-			{0, 0, 0, 0}
-		};
-
-		c = getopt_long(argc, argv, "hv",
-				long_options, &option_index);
-		if (c == -1)
-			break;
-
-		switch (c) {
-		case 'h':
-			print_help(argv[0]);
-			exit(0);
-		case 'v':
-			cmdline_opts.verbose = true;
-			break;
-		default:
-			/* catch unknown options *as well as* missing arguments. */
-			fprintf(stderr, "Error in command line options. Exiting.\n");
-			exit(-1);
-			break;
-		}
-	}
-}
-
-void *msgb_ctx = NULL;
-
-void run_tests(int nr)
-{
-	int test_nr;
-	nr --; /* arg's first test is 1, in here it's 0 */
-	for (test_nr = 0; msc_vlr_tests[test_nr]; test_nr ++) {
-		if (nr >= 0 && test_nr != nr)
-			continue;
-
-		if (cmdline_opts.verbose)
-			fprintf(stderr, "(test nr %d)\n", test_nr + 1);
-
-		msc_vlr_tests[test_nr]();
-
-		if (cmdline_opts.verbose)
-			fprintf(stderr, "(test nr %d)\n", test_nr + 1);
-
-		check_talloc(msgb_ctx, tall_bsc_ctx, 9);
-	} while(0);
-}
-
-int main(int argc, char **argv)
-{
-	handle_options(argc, argv);
-
-	tall_bsc_ctx = talloc_named_const(NULL, 0, "subscr_conn_test_ctx");
-	msgb_ctx = msgb_talloc_ctx_init(tall_bsc_ctx, 0);
-	osmo_init_logging(&info);
-
-	_log_lines = cmdline_opts.verbose;
-
-	OSMO_ASSERT(osmo_stderr_target);
-	log_set_use_color(osmo_stderr_target, 0);
-	log_set_print_timestamp(osmo_stderr_target, 0);
-	log_set_print_filename(osmo_stderr_target, _log_lines? 1 : 0);
-	log_set_print_category(osmo_stderr_target, 1);
-
-	net = gsm_network_init(tall_bsc_ctx, 1, 1, fake_mncc_recv);
-	net->gsup_server_addr_str = talloc_strdup(net, "no_gsup_server");
-	net->gsup_server_port = 0;
-
-	osmo_fsm_log_addr(false);
-	OSMO_ASSERT(msc_vlr_alloc(net) == 0);
-	OSMO_ASSERT(msc_vlr_start(net) == 0);
-	OSMO_ASSERT(net->vlr);
-	OSMO_ASSERT(net->vlr->gsup_client);
-	msc_subscr_conn_init();
-
-	net->vlr->ops.tx_lu_acc = fake_vlr_tx_lu_acc;
-	net->vlr->ops.tx_lu_rej = fake_vlr_tx_lu_rej;
-	net->vlr->ops.tx_cm_serv_acc = fake_vlr_tx_cm_serv_acc;
-	net->vlr->ops.tx_cm_serv_rej = fake_vlr_tx_cm_serv_rej;
-	net->vlr->ops.tx_auth_req = fake_vlr_tx_auth_req;
-	net->vlr->ops.tx_auth_rej = fake_vlr_tx_auth_rej;
-	net->vlr->ops.set_ciph_mode = fake_vlr_tx_ciph_mode_cmd;
-
-	clear_vlr();
-
-	if (optind >= argc)
-		run_tests(-1);
-	else {
-		int arg;
-		long int nr;
-		for (arg = optind; arg < argc; arg++) {
-			nr = strtol(argv[arg], NULL, 10);
-			if (errno) {
-				fprintf(stderr, "Invalid argument: %s\n",
-					argv[arg]);
-				exit(1);
-			}
-
-			run_tests(nr);
-		}
-	}
-
-	printf("Done\n");
-
-	talloc_free(the_bts);
-
-	check_talloc(msgb_ctx, tall_bsc_ctx, 9);
-	return 0;
-}