laforge has submitted this change. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/20373 )
Change subject: bsc: implement initial LCS tests for OsmoBSC
......................................................................
bsc: implement initial LCS tests for OsmoBSC
Change-Id: Id3df9439752c088cff5618d21254af42365690ca
---
M bsc/BSC_Tests.ttcn
M bsc/osmo-bsc.cfg
2 files changed, 549 insertions(+), 0 deletions(-)
Approvals:
Jenkins Builder: Verified
laforge: Looks good to me, approved
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 4bab055..9a6cce3 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -30,6 +30,8 @@
import from RAN_Adapter all;
import from BSSAP_LE_Adapter all;
import from BSSAP_LE_CodecPort all;
+import from BSSAP_LE_Types all;
+import from BSSLAP_Types all;
import from BSSAP_CodecPort all;
import from BSSMAP_Templates all;
import from IPA_Emulation all;
@@ -63,6 +65,7 @@
import from SCCP_Templates all;
import from BSSMAP_Templates all;
+import from BSSMAP_LE_Templates all;
import from SCCPasp_Types all;
@@ -6189,6 +6192,22 @@
template MobileIdentityLV ts_MI_TMSI_NRI_LV(integer nri_v, integer nri_bitlen
:= 10) :=
ts_MI_TMSI_LV(tmsi := f_tmsi_nri(nri_v, nri_bitlen := nri_bitlen));
+private function f_expect_lchan_rel(RSL_DCHAN_PT rsl) runs on MSC_ConnHdlr {
+ interleave {
+ [] rsl.receive(tr_RSL_DATA_REQ(g_chan_nr, ?, decmatch
tr_RRM_RR_RELEASE)) {
+ f_logp(BSCVTY, "Got RSL RR Release");
+ }
+ [] rsl.receive(tr_RSL_DEACT_SACCH(g_chan_nr)) {
+ f_logp(BSCVTY, "Got RSL Deact SACCH");
+ }
+ [] rsl.receive(tr_RSL_MsgTypeD(RSL_MT_RF_CHAN_REL)) {
+ f_logp(BSCVTY, "Got RSL RF Chan Rel, sending Rel Ack");
+ rsl.send(ts_RSL_RF_CHAN_REL_ACK(g_chan_nr));
+ break;
+ }
+ }
+}
+
private function f_perform_clear(RSL_DCHAN_PT rsl) runs on MSC_ConnHdlr {
f_logp(BSCVTY, "MSC instructs BSC to clear channel");
BSSAP.send(ts_BSSMAP_ClearCommand(0));
@@ -7594,6 +7613,521 @@
f_shutdown_helper();
}
+template (value) PDU_BSSAP_LE ts_BSSMAP_LE_BSSLAP(template (value) BSSLAP_PDU
bsslap)
+ := ts_BSSMAP_LE_ConnInfo(BSSMAP_LE_PROT_BSSLAP, data :=
enc_BSSLAP_PDU(valueof(bsslap)));
+
+private function f_match_bsslap(PDU_BSSAP_LE got_bsslap_msg,
+ template (present) BSSLAP_PDU expect_bsslap)
+{
+ var BSSLAP_PDU bsslap :=
dec_BSSLAP_PDU(got_bsslap_msg.pdu.bssmap.co_info.bsslap_apdu.data);
+ if (not match(bsslap, expect_bsslap)) {
+ log("EXPECTING BSSLAP: ", expect_bsslap);
+ log("GOT BSSLAP: ", bsslap);
+ setverdict(fail, "BSSLAP is not as expected");
+ mtc.stop;
+ }
+ setverdict(pass);
+}
+
+/* GAD: this is an Ellipsoid point with uncertainty circle, encoded as in 3GPP
TS 23.032 ยง7.3.2. */
+const octetstring gad_ell_point_unc_circle := '10b0646d0d5f6627'O;
+
+private function f_expect_bsslap(template (present) BSSLAP_PDU
expect_rx_bsslap) runs on MSC_ConnHdlr {
+ var PDU_BSSAP_LE rx_bsslap;
+ BSSAP_LE.receive(tr_BSSMAP_LE_ConnInfo(BSSMAP_LE_PROT_BSSLAP, ?)) ->
value(rx_bsslap);
+ f_match_bsslap(rx_bsslap, expect_rx_bsslap);
+}
+
+/* With an active lchan, start BSSMAP Perform Location Request on A interface,
starting BSSMAP-LE Perform Location
+ * Request on Lb interface. Either with or without the SMLC doing a BSSLAP TA
Request. */
+private function f_lcs_loc_req_for_active_ms(boolean do_ta_request := false)
runs on MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_establish_fully(omit, omit);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+
BSSAP.send(valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+ ts_CellId_CGI('262'H, '42'H, 23, 42))));
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ if (not do_ta_request) {
+ /* verify TA Layer 3 in APDU. First the APDU type (BSSLAP),
then the BSSLAP data contents. */
+ var template BSSMAP_LE_IE_APDU expect_apdu :=
tr_BSSMAP_LE_APDU(BSSMAP_LE_PROT_BSSLAP, ?);
+ if (not match(plr.pdu.bssmap.perf_loc_req.bsslap_apdu,
expect_apdu)) {
+ log("EXPECTING BSSMAP-LE APDU IE ", expect_apdu);
+ log("GOT BSSMAP-LE APDU IE ",
plr.pdu.bssmap.perf_loc_req.bsslap_apdu);
+ setverdict(fail, "BSSMAP-LE APDU IE is not as
expected");
+ mtc.stop;
+ }
+ var template BSSLAP_PDU expect_ta_layer3 :=
tr_BSSLAP_TA_Layer3(tr_BSSLAP_IE_TA(0));
+ var BSSLAP_PDU bsslap :=
dec_BSSLAP_PDU(plr.pdu.bssmap.perf_loc_req.bsslap_apdu.data);
+ if (not match(bsslap, expect_ta_layer3)) {
+ log("EXPECTING BSSLAP TA Layer 3: ", expect_ta_layer3);
+ log("GOT BSSLAP: ", bsslap);
+ setverdict(fail, "BSSLAP is not as expected");
+ mtc.stop;
+ }
+ /* OsmoBSC directly sent the TA as BSSLAP APDU in the BSSMAP-LE
Perform Location Request to the SMLC. The SMLC
+ * has no need to request the TA from the BSC and directly
responds. */
+ } else {
+ /* SMLC wants to ask the TA from the BSC explicitly in a BSSLAP
TA Request message */
+ BSSAP_LE.send(ts_BSSMAP_LE_BSSLAP(ts_BSSLAP_TA_Req));
+ f_expect_bsslap(tr_BSSLAP_TA_Resp(?, ?));
+ }
+
+ /* SMLC got the TA from the BSC, now responds with geo information
data. */
+ BSSAP_LE.send(ts_BSSMAP_LE_PerfLocResp(gad_ell_point_unc_circle, omit));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
BSSAP.receive(tr_BSSMAP_Perform_Location_Response(tr_BSSMAP_IE_LocationEstimate(gad_ell_point_unc_circle)));
+
+ /* The LCS was using an active A-interface conn. It should still remain
active after this. */
+ f_mo_l3_transceive();
+
+ f_perform_clear(RSL);
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+
+/* With an active lchan, start BSSMAP Perform Location Request on A interface,
starting BSSMAP-LE Perform Location
+ * Request on Lb interface. Without the SMLC doing a BSSLAP TA Request. */
+private function f_tc_lcs_loc_req_for_active_ms(charstring id) runs on
MSC_ConnHdlr {
+ f_lcs_loc_req_for_active_ms(false);
+}
+testcase TC_lcs_loc_req_for_active_ms() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+ vc_conn := f_start_handler(refers(f_tc_lcs_loc_req_for_active_ms),
pars);
+ vc_conn.done;
+}
+
+/* With an active lchan, start BSSMAP Perform Location Request on A interface,
starting BSSMAP-LE Perform Location
+ * Request on Lb interface. With the SMLC doing a BSSLAP TA Request. */
+private function f_tc_lcs_loc_req_for_active_ms_ta_req(charstring id) runs on
MSC_ConnHdlr {
+ f_lcs_loc_req_for_active_ms(true);
+}
+testcase TC_lcs_loc_req_for_active_ms_ta_req() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+ vc_conn :=
f_start_handler(refers(f_tc_lcs_loc_req_for_active_ms_ta_req), pars);
+ vc_conn.done;
+}
+
+/* Clear the A-interface conn only, without doing anything on Abis. Useful for
LCS, for cases where there is only an A
+ * conn without an active lchan. */
+private function f_clear_A_conn() runs on MSC_ConnHdlr
+{
+ var BssmapCause cause := 0;
+ BSSAP.send(ts_BSSMAP_ClearCommand(cause));
+ BSSAP.receive(tr_BSSMAP_ClearComplete);
+ BSSAP.send(RAN_Conn_Prim:MSC_CONN_PRIM_DISC_REQ);
+
+ timer no_more_bssap := 5.0;
+ no_more_bssap.start;
+ alt {
+ [] no_more_bssap.timeout { break; }
+ [] BSSAP.receive(tr_BSSAP_BSSMAP) {
+ setverdict(fail, "Expected no more BSSAP after Clear Complete");
+ mtc.stop;
+ }
+ }
+ setverdict(pass);
+}
+
+/* Verify that the A-interface connection is still working, and then clear it,
without doing anything on Abis. Useful
+ * for LCS, for cases where there is only an A conn without an active lchan. */
+private function f_verify_active_A_conn_and_clear() runs on MSC_ConnHdlr
+{
+ f_logp(BSCVTY, "f_verify_active_A_conn_and_clear: test A link, then
clear");
+
+ /* When an lchan is active, we can send some L3 data from the BTS side
and verify that it shows up on the other
+ * side towards the MSC. When there is no lchan, this is not possible.
To probe whether the A-interface
+ * connection is still up, we need something that echos back on the
A-interface. Another LCS request! */
+
BSSAP.send(valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+ ts_CellId_CGI('262'H, '42'H, 23, 42))));
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?));
+
+ /* Right, the Perform Location Request showed up on Lb, now we can
clear the A conn. */
+ f_clear_A_conn();
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocAbort(BSSMAP_LE_LCS_CAUSE_REQUEST_ABORTED));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+}
+
+/* With *no* active lchan, start BSSMAP Perform Location Request on A
interface, starting BSSMAP-LE Perform Location
+ * Request on Lb interface. BSC will Page for the subscriber as soon as we
(virtual SMLC) request the TA via BSSLAP.
+ */
+private function f_tc_lcs_loc_req_for_idle_ms(charstring id) runs on
MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+ /* Register to receive the Paging Command */
+ var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1,
RSL_CHAN_NR_Bm_ACCH));
+ g_chan_nr := new_chan_nr;
+ f_rslem_register(0, g_chan_nr);
+
+ BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
+
valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+
ts_CellId_CGI('001'H, '01'H, 1, 0)))));
+ BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_CONF_IND);
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ /* SMLC wants to ask the TA from the BSC explicitly in a BSSLAP TA
Request message */
+ BSSAP_LE.send(ts_BSSMAP_LE_BSSLAP(ts_BSSLAP_TA_Req));
+
+ /* OsmoBSC needs to Page */
+ RSL.receive(tr_RSL_PAGING_CMD(tr_MI_IMSI(g_pars.imsi)));
+ f_logp(BSCVTY, "got Paging Command");
+
+ /* MS requests channel. Since the Paging was for LCS, the Paging
Response does not trigger a Complete Layer 3 to
+ * the MSC, and releases the lchan directly. */
+ f_perform_compl_l3(RSL,
ts_PAG_RESP(valueof(ts_MI_IMSI_LV(g_pars.imsi))), do_clear := false,
expect_bssmap_l3 := false);
+ f_expect_lchan_rel(RSL);
+
+ /* From the Paging Response, the TA is now known to the BSC, and it
responds to the SMLC. */
+
+ f_expect_bsslap(tr_BSSLAP_TA_Resp(?, ?));
+
+ /* SMLC got the TA from the BSC, now responds with geo information
data. */
+ BSSAP_LE.send(ts_BSSMAP_LE_PerfLocResp(gad_ell_point_unc_circle, omit));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
+
BSSAP.receive(tr_BSSMAP_Perform_Location_Response(tr_BSSMAP_IE_LocationEstimate(gad_ell_point_unc_circle)));
+
+ /* The lchan is gone, the A-interface conn was created for the LCS only.
+ * Still it is clearly the MSC's job to decide whether to tear down the
conn or not. */
+ f_verify_active_A_conn_and_clear();
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+testcase TC_lcs_loc_req_for_idle_ms() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.sccp_addr_msc := g_bssap[0].sccp_addr_own;
+ pars.sccp_addr_bsc := g_bssap[0].sccp_addr_peer;
+
+ vc_conn := f_start_handler(refers(f_tc_lcs_loc_req_for_idle_ms), pars);
+ vc_conn.done;
+}
+
+/* With no active lchan, start BSSMAP Perform Location Request on A interface,
but omit IMSI; expect failure response.
+ */
+private function f_tc_lcs_loc_req_no_subscriber(charstring id) runs on
MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+ /* provoke an abort by omitting both IMSI and IMEI */
+ BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
+ valueof(ts_BSSMAP_Perform_Location_Request(omit,
+ ts_CellId_CGI('262'H, '42'H, 23,
42)))));
+ BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_CONF_IND);
+
+ /* BSC tells MSC about failure */
+ BSSAP.receive(tr_BSSMAP_Perform_Location_Response(
+ locationEstimate := omit, positioningData := omit,
+ lCS_Cause :=
tr_BSSMAP_LcsCause(BSSMAP_LCS_CAUSE_DATA_MISSING_IN_REQ)));
+
+ /* There is no lchan. Still the MSC's job to decide whether to tear
down the conn or not. */
+ f_verify_active_A_conn_and_clear();
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+testcase TC_lcs_loc_req_no_subscriber() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.sccp_addr_msc := g_bssap[0].sccp_addr_own;
+ pars.sccp_addr_bsc := g_bssap[0].sccp_addr_peer;
+
+ vc_conn := f_start_handler(refers(f_tc_lcs_loc_req_no_subscriber),
pars);
+ vc_conn.done;
+}
+
+/* With an active lchan, start a Perform Location Request on the A-interface,
but virtual SMLC does not answer with
+ * BSSMAP-LE Perform Location Response (before or after sending a BSSLAP TA
Request) */
+private function f_lcs_loc_req_for_active_ms_le_timeout(boolean do_ta) runs on
MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_establish_fully(omit, omit);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+
BSSAP.send(valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+ ts_CellId_CGI('262'H, '42'H, 23, 42))));
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ if (do_ta) {
+ /* SMLC wants to ask the TA from the BSC explicitly in a BSSLAP
TA Request message */
+ BSSAP_LE.send(ts_BSSMAP_LE_BSSLAP(ts_BSSLAP_TA_Req));
+ f_expect_bsslap(tr_BSSLAP_TA_Resp(?, ?));
+ }
+
+ /* SMLC fails to respond, BSC runs into timeout */
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocAbort(BSSMAP_LE_LCS_CAUSE_SYSTEM_FAILURE));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
+ BSSAP.receive(tr_BSSMAP_Perform_Location_Response(
+ locationEstimate := omit, positioningData := omit,
+ lCS_Cause :=
tr_BSSMAP_LcsCause(BSSMAP_LCS_CAUSE_SYSTEM_FAILURE)));
+
+ /* There is no lchan. Still the MSC's job to decide whether to tear
down the conn or not. */
+ f_verify_active_A_conn_and_clear();
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+
+/* With an active lchan, start a Perform Location Request on the A-interface,
but virtual SMLC does not answer with
+ * BSSMAP-LE Perform Location Response, without sending a BSSLAP TA Request. */
+private function f_tc_lcs_loc_req_for_active_ms_le_timeout(charstring id) runs
on MSC_ConnHdlr {
+ f_lcs_loc_req_for_active_ms_le_timeout(false);
+}
+
+testcase TC_lcs_loc_req_for_active_ms_le_timeout() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+ vc_conn :=
f_start_handler(refers(f_tc_lcs_loc_req_for_active_ms_le_timeout), pars);
+ vc_conn.done;
+}
+
+/* With an active lchan, start a Perform Location Request on the A-interface,
but virtual SMLC does not answer with
+ * BSSMAP-LE Perform Location Response, after sending a BSSLAP TA Request. */
+private function f_tc_lcs_loc_req_for_active_ms_le_timeout2(charstring id)
runs on MSC_ConnHdlr {
+ f_lcs_loc_req_for_active_ms_le_timeout(true);
+}
+
+testcase TC_lcs_loc_req_for_active_ms_le_timeout2() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+ vc_conn :=
f_start_handler(refers(f_tc_lcs_loc_req_for_active_ms_le_timeout2), pars);
+ vc_conn.done;
+}
+
+/* With *no* active lchan, start a Perform Location Request, expecting that
the MS will be Paged. */
+private function f_tc_lcs_loc_req_for_idle_ms_no_pag_resp(charstring id) runs
on MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+ /* Register to receive the Paging Command */
+ var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1,
RSL_CHAN_NR_Bm_ACCH));
+ g_chan_nr := new_chan_nr;
+ f_rslem_register(0, g_chan_nr);
+
+ BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
+
valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+
ts_CellId_CGI('001'H, '01'H, 1, 0)))));
+ BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_CONF_IND);
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ /* SMLC wants to ask the TA from the BSC explicitly in a BSSLAP TA
Request message */
+ BSSAP_LE.send(ts_BSSMAP_LE_BSSLAP(ts_BSSLAP_TA_Req));
+
+ /* OsmoBSC needs to Page */
+ var PDU_BSSAP_LE rx_bsslap;
+ alt {
+ [] RSL.receive(tr_RSL_PAGING_CMD(tr_MI_IMSI(g_pars.imsi))) {
+ f_logp(BSCVTY, "got Paging Command");
+ repeat;
+ }
+ [] BSSAP_LE.receive(tr_BSSMAP_LE_ConnInfo(BSSMAP_LE_PROT_BSSLAP, ?)) ->
value(rx_bsslap) {
+ /* MS does not respond to Paging, TA Req runs into timeout. */
+ f_match_bsslap(rx_bsslap, tr_BSSLAP_Abort(?));
+ }
+ }
+
+ /* SMLC responds with failure */
+ BSSAP_LE.send(ts_BSSMAP_LE_PerfLocResp(omit,
BSSMAP_LE_LCS_CAUSE_REQUEST_ABORTED));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
+ /* BSC tells MSC about failure */
+ BSSAP.receive(tr_BSSMAP_Perform_Location_Response(
+ locationEstimate := omit, positioningData := omit,
+ lCS_Cause :=
tr_BSSMAP_LcsCause(BSSMAP_LCS_CAUSE_REQUEST_ABORTED)));
+
+ /* There is no lchan. Still the MSC's job to decide whether to tear
down the conn or not. */
+ f_verify_active_A_conn_and_clear();
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+testcase TC_lcs_loc_req_for_idle_ms_no_pag_resp() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.sccp_addr_msc := g_bssap[0].sccp_addr_own;
+ pars.sccp_addr_bsc := g_bssap[0].sccp_addr_peer;
+
+ vc_conn :=
f_start_handler(refers(f_tc_lcs_loc_req_for_idle_ms_no_pag_resp), pars);
+ vc_conn.done;
+}
+
+/* During an ongoing Location Request, the MS sends a CM Service Request.
Expect the same A-conn to be re-used / taken
+ * over. */
+private function f_tc_cm_service_during_lcs_loc_req(charstring id) runs on
MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+ /* Register to receive the Paging Command */
+ var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1,
RSL_CHAN_NR_Bm_ACCH));
+ g_chan_nr := new_chan_nr;
+ f_rslem_register(0, g_chan_nr);
+
+ BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
+
valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+
ts_CellId_CGI('001'H, '01'H, 1, 0)))));
+ BSSAP.receive(RAN_Conn_Prim:MSC_CONN_PRIM_CONF_IND);
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ /* As the A-interface conn was established for LCS, the MS
coincidentally decides to issue a CM Service Request
+ * and establish Layer 3. It should use the existing A-interface conn.
*/
+ f_perform_compl_l3(RSL, valueof(ts_CM_SERV_REQ(CM_TYPE_MO_CALL,
valueof(ts_MI_IMSI_LV(g_pars.imsi)))),
+ do_clear := false, expect_bssmap_l3 := true);
+
+ /* SMLC wants to ask the TA from the BSC explicitly in a BSSLAP TA
Request message */
+ BSSAP_LE.send(ts_BSSMAP_LE_BSSLAP(ts_BSSLAP_TA_Req));
+
+ /* OsmoBSC already has an lchan, no need to Page, just returns the TA */
+ f_expect_bsslap(tr_BSSLAP_TA_Resp(?, ?));
+
+ /* SMLC got the TA from the BSC, now responds with geo information
data. */
+ BSSAP_LE.send(ts_BSSMAP_LE_PerfLocResp(gad_ell_point_unc_circle, omit));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
BSSAP.receive(tr_BSSMAP_Perform_Location_Response(tr_BSSMAP_IE_LocationEstimate(gad_ell_point_unc_circle)));
+
+ /* The lchan should still exist, it was from a CM Service Request. */
+ f_mo_l3_transceive();
+
+ f_perform_clear(RSL);
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+testcase TC_cm_service_during_lcs_loc_req() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(1, true);
+ f_sleep(1.0);
+
+ pars.sccp_addr_msc := g_bssap[0].sccp_addr_own;
+ pars.sccp_addr_bsc := g_bssap[0].sccp_addr_peer;
+
+ vc_conn := f_start_handler(refers(f_tc_cm_service_during_lcs_loc_req),
pars);
+ vc_conn.done;
+}
+
+/* During an ongoing Perform Location Request, do a Handover, an expect a
BSSLAP Reset message from the BSC to indicate
+ * the new lchan after handover. */
+private function f_tc_ho_during_lcs_loc_req(charstring id) runs on
MSC_ConnHdlr {
+ f_sleep(1.0);
+
+ f_establish_fully(omit, omit);
+ f_bssap_le_register_imsi(g_pars.imsi, omit);
+
+
BSSAP.send(valueof(ts_BSSMAP_Perform_Location_Request(ts_BSSMAP_Imsi(g_pars.imsi),
+ ts_CellId_CGI('262'H, '42'H, 23, 42))));
+
+ var PDU_BSSAP_LE plr;
+
BSSAP_LE.receive(tr_BSSMAP_LE_PerfLocReq(BSSMAP_LE_LOC_INFO_CURRENT_GEOGRAPHIC_LOC,
?, ?)) -> value(plr);
+
+ /* SMLC ponders the Location Request, in the meantime the BSC decides
to handover */
+ f_bts_0_cfg(BSCVTY, {"neighbor bts 1"});
+
+ var HandoverState hs := {
+ rr_ho_cmpl_seen := false,
+ handover_done := false,
+ old_chan_nr := -
+ };
+ /* issue hand-over command on VTY */
+ f_vty_handover(BSCVTY, 0, 0, g_chan_nr, 1);
+ /* temporarily suspend DChan processing on BTS1 to avoid race with
RSLEM_register */
+ f_rslem_suspend(RSL1_PROC);
+
+ /* From the MGW perspective, a handover is is characterized by
+ * performing one MDCX operation with the MGW. So we expect to see
+ * one more MDCX during handover. */
+ g_media.mgcp_conn[0].mdcx_seen_exp :=
g_media.mgcp_conn[0].crcx_seen_exp + 1;
+
+ alt {
+ [] as_handover(hs);
+ }
+
+ var PDU_BSSAP_LE rx_bsslap;
+
+ interleave {
+ /* Expect the BSC to inform the MSC about the handover */
+ [] BSSAP.receive(tr_BSSMAP_HandoverPerformed);
+
+ /* Expect the BSC to inform the SMLC about the handover */
+ [] BSSAP_LE.receive(tr_BSSMAP_LE_ConnInfo(BSSMAP_LE_PROT_BSSLAP, ?)) ->
value(rx_bsslap) {
+ f_match_bsslap(rx_bsslap,
tr_BSSLAP_Reset(BSSLAP_CAUSE_INTRA_BSS_HO));
+ }
+ }
+
+ /* SMLC now responds with geo information data. */
+ BSSAP_LE.send(ts_BSSMAP_LE_PerfLocResp(gad_ell_point_unc_circle, omit));
+ BSSAP_LE.receive(BSSAP_LE_Conn_Prim:CONN_PRIM_DISC_IND);
+
BSSAP.receive(tr_BSSMAP_Perform_Location_Response(tr_BSSMAP_IE_LocationEstimate(gad_ell_point_unc_circle)));
+
+ /* lchan still active */
+ f_mo_l3_transceive(RSL1);
+
+ /* MSC decides it is done now. */
+ f_perform_clear(RSL1);
+
+ f_sleep(2.0);
+ setverdict(pass);
+}
+testcase TC_ho_during_lcs_loc_req() runs on test_CT {
+ var MSC_ConnHdlr vc_conn;
+ var TestHdlrParams pars := f_gen_test_hdlr_pars();
+
+ f_init(2, true);
+ f_sleep(1.0);
+ vc_conn := f_start_handler(refers(f_tc_ho_during_lcs_loc_req), pars);
+ vc_conn.done;
+}
+
/* Dyn PDCH todo:
* activate OSMO as TCH/F
* activate OSMO as TCH/H
@@ -7837,6 +8371,18 @@
execute( TC_fh_params_assignment_cmd() );
execute( TC_fh_params_handover_cmd() );
execute( TC_fh_params_si4_cbch() );
+
+ if (mp_enable_lcs_tests) {
+ execute( TC_lcs_loc_req_for_active_ms() );
+ execute( TC_lcs_loc_req_for_active_ms_ta_req() );
+ execute( TC_lcs_loc_req_for_idle_ms() );
+ execute( TC_lcs_loc_req_no_subscriber() );
+ execute( TC_lcs_loc_req_for_active_ms_le_timeout() );
+ execute( TC_lcs_loc_req_for_active_ms_le_timeout2() );
+ execute( TC_lcs_loc_req_for_idle_ms_no_pag_resp() );
+ execute( TC_cm_service_during_lcs_loc_req() );
+ execute( TC_ho_during_lcs_loc_req() );
+ }
}
}
diff --git a/bsc/osmo-bsc.cfg b/bsc/osmo-bsc.cfg
index 8dd6655..8a65e3c 100644
--- a/bsc/osmo-bsc.cfg
+++ b/bsc/osmo-bsc.cfg
@@ -40,6 +40,7 @@
logging level lsua notice
logging level lm3ua notice
logging level lmgcp notice
+ logging level reset notice
!
stats interval 0
stats reporter statsd
@@ -431,3 +432,5 @@
server
local-ip 127.0.0.1
local-port 48050
+smlc
+ enable
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Id3df9439752c088cff5618d21254af42365690ca
Gerrit-Change-Number: 20373
Gerrit-PatchSet: 5
Gerrit-Owner: neels <nhofm...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: neels <nhofm...@sysmocom.de>
Gerrit-CC: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged
