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authorPau Espin Pedrol <pespin@sysmocom.de>2021-04-19 13:03:20 +0200
committerlaforge <laforge@osmocom.org>2021-04-20 16:19:25 +0000
commit35801c3edcc5983e0ddc4d61c1b2ca892050e1bc (patch)
treefbeb1f376100f6632ce73828e18ebd85f1b6c130
parentd004631c82bd684949b8536bd93b7f6454f1a832 (diff)
bsc: Introduce test TC_srvcc_eutran_to_geran_ho_out
-rw-r--r--bsc/BSC_Tests.ttcn81
-rw-r--r--library/BSSMAP_Templates.ttcn28
2 files changed, 87 insertions, 22 deletions
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index 16afbf87..bc243b1f 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -4767,19 +4767,12 @@ private function f_expect_dlcx_conns() runs on MSC_ConnHdlr {
BSSAP.receive(tr_BSSMAP_ClearComplete);
}
-private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
- g_pars := f_gen_test_hdlr_pars();
-
- var PDU_BSSAP ass_req := f_gen_ass_req();
- ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType);
- ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
- var template PDU_BSSAP exp_compl := f_gen_exp_compl();
- f_establish_fully(ass_req, exp_compl);
+private function f_ho_out_of_this_bsc(template (omit) BSSMAP_oldToNewBSSIEs exp_oldToNewBSSIEs := omit) runs on MSC_ConnHdlr {
f_bts_0_cfg(BSCVTY, {"neighbor lac 99 arfcn 123 bsic any"});
f_vty_transceive(BSCVTY, "handover any to arfcn 123 bsic any");
- BSSAP.receive(tr_BSSMAP_HandoverRequired);
+ BSSAP.receive(tr_BSSMAP_HandoverRequired(exp_oldToNewBSSIEs));
f_sleep(0.5);
/* The MSC negotiates Handover Request and Handover Request Ack with
@@ -4820,6 +4813,17 @@ private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
f_expect_dlcx_conns();
setverdict(pass);
+}
+
+private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
+ g_pars := f_gen_test_hdlr_pars();
+ var PDU_BSSAP ass_req := f_gen_ass_req();
+ ass_req.pdu.bssmap.assignmentRequest.channelType := valueof(ts_BSSMAP_IE_ChannelType);
+ ass_req.pdu.bssmap.assignmentRequest.codecList := valueof(ts_BSSMAP_IE_CodecList({ts_CodecFR}));
+ var template PDU_BSSAP exp_compl := f_gen_exp_compl();
+ f_establish_fully(ass_req, exp_compl);
+
+ f_ho_out_of_this_bsc();
f_sleep(1.0);
}
testcase TC_ho_out_of_this_bsc() runs on test_CT {
@@ -5105,14 +5109,12 @@ testcase TC_ho_out_fail_no_result_after_ho_cmd() runs on test_CT {
f_shutdown_helper();
}
-private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
+private function f_ho_into_this_bsc(charstring id, template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit) runs on MSC_ConnHdlr {
/* Hack: the proper way would be to wait for the BSSMAP Handover Request ACK and extract the
* actual assigned chan_nr from its L3 (RR Handover Command) message. But osmo-bsc starts acting
* on the lchan even before we get a chance to evaluate the BSSMAP Handover Request ACK. So we
* need to assume that osmo-bsc will activate TS 1 and already set up this lchan's RSL emulation
* before we get started. */
- var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit;
- var template PDU_ML3_NW_MS exp_rr_rel_tmpl := tr_RRM_RR_RELEASE;
var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH));
f_rslem_register(0, new_chan_nr);
g_chan_nr := new_chan_nr;
@@ -5122,11 +5124,6 @@ private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
f_MscConnHdlr_init(g_pars.media_nr, "127.0.0.2", "127.0.0.3", FR_AMR);
activate(as_Media());
- if (not istemplatekind(g_pars.last_used_eutran_plmn, "omit")) {
- oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
- exp_rr_rel_tmpl := tr_RRM_RR_RELEASE_CellSelectInd;
- }
-
BSSAP.send(ts_BSSAP_Conn_Req(g_pars.sccp_addr_bsc, g_pars.sccp_addr_msc,
f_gen_handover_req(aoip_tla := g_pars.host_aoip_tla,
oldToNewBSSIEs := oldToNewBSSIEs)));
@@ -5174,7 +5171,17 @@ private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
enc_PDU_ML3_MS_NW(l3_tx)));
BSSAP.receive(tr_BSSMAP_HandoverComplete);
+ setverdict(pass);
+}
+private function f_tc_ho_into_this_bsc(charstring id) runs on MSC_ConnHdlr {
+ var template PDU_ML3_NW_MS exp_rr_rel_tmpl := tr_RRM_RR_RELEASE;
+ var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit;
+ if (not istemplatekind(g_pars.last_used_eutran_plmn, "omit")) {
+ oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
+ exp_rr_rel_tmpl := tr_RRM_RR_RELEASE_CellSelectInd;
+ }
+ f_ho_into_this_bsc(id, oldToNewBSSIEs);
f_perform_clear(RSL, exp_rr_rel_tmpl);
setverdict(pass);
}
@@ -5213,7 +5220,7 @@ testcase TC_ho_into_this_bsc_tla_v6() runs on test_CT {
}
/* Similar to TC_ho_into_this_bsc, but when in SRVCC, HO Req contains "Old BSS
- to New BSS Information" IE with "Last Used E-UTRAN PLMN Id", whihch, when the
+ to New BSS Information" IE with "Last Used E-UTRAN PLMN Id", which, when the
channel is later released (RR CHannel Release), should trigger inclusion of
IE "Cell Selection Indicator after Release of all TCH and SDCCH" with E-UTRAN
neighbors. */
@@ -5224,6 +5231,43 @@ testcase TC_srvcc_eutran_to_geran() runs on test_CT {
f_shutdown_helper();
}
+private function f_tc_srvcc_eutran_to_geran_ho_out(charstring id) runs on MSC_ConnHdlr {
+ var template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs;
+ oldToNewBSSIEs := f_ts_BSSMAP_oldToNewBSSIEs(ts_BSSMAP_LastUsedEUTRANPLMNId(g_pars.last_used_eutran_plmn));
+ f_ho_into_this_bsc(id, oldToNewBSSIEs);
+ f_ho_out_of_this_bsc(oldToNewBSSIEs);
+ setverdict(pass);
+}
+/* First, HO into BSC from EUTRAN (SRVCC): HO Request contains "Old BSS to New
+ BSS Information" IE with "Last Used E-UTRAN PLMN Id".
+ Second, HO to another BSC: HO Required contains "Old BSS to New BSS Information"
+ IE with "Last Used E-UTRAN PLMN Id" from first step. */
+testcase TC_srvcc_eutran_to_geran_ho_out() 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);
+
+ f_ctrs_bsc_and_bts_init();
+
+ pars.last_used_eutran_plmn := '323454'O;
+ 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_srvcc_eutran_to_geran_ho_out), pars);
+ vc_conn.done;
+
+ f_ctrs_bsc_and_bts_add(0, "handover:attempted", 2);
+ f_ctrs_bsc_and_bts_add(0, "handover:completed", 2);
+ f_ctrs_bsc_and_bts_add(0, "interbsc_ho_in:attempted", 1);
+ f_ctrs_bsc_and_bts_add(0, "interbsc_ho_in:completed", 1);
+ f_ctrs_bsc_and_bts_add(0, "interbsc_ho_out:attempted", 1);
+ f_ctrs_bsc_and_bts_add(0, "interbsc_ho_out:completed", 1);
+ f_ctrs_bsc_and_bts_verify();
+ f_shutdown_helper();
+}
+
private function f_tc_ho_in_fail_msc_clears(charstring id) runs on MSC_ConnHdlr {
var RslChannelNr new_chan_nr := valueof(t_RslChanNr0(1, RSL_CHAN_NR_Bm_ACCH));
f_rslem_register(0, new_chan_nr);
@@ -8673,6 +8717,7 @@ control {
execute( TC_ho_into_this_bsc_tla_v6() );
}
execute( TC_srvcc_eutran_to_geran() );
+ execute( TC_srvcc_eutran_to_geran_ho_out() );
execute( TC_ho_in_fail_msc_clears() );
execute( TC_ho_in_fail_msc_clears_after_ho_detect() );
execute( TC_ho_in_fail_no_detect() );
diff --git a/library/BSSMAP_Templates.ttcn b/library/BSSMAP_Templates.ttcn
index 8049bb01..2b99a5b5 100644
--- a/library/BSSMAP_Templates.ttcn
+++ b/library/BSSMAP_Templates.ttcn
@@ -232,6 +232,24 @@ function f_ts_BSSMAP_IE_OldToNewBSSInfo(template (omit) BSSMAP_oldToNewBSSIEs va
}
}
+template BSSMAP_IE_OldToNewBSSInfo tr_BSSMAP_IE_OldToNewBSSInfo(template (value) BSSMAP_oldToNewBSSIEs val) := {
+ elementIdentifier := '3A'O,
+ lengthIndicator := ?, /* overwritten by codec */
+ oldToNewBSSIEs := enc_BSSMAP_oldToNewBSSIEs(valueof(val))
+}
+function f_tr_BSSMAP_IE_OldToNewBSSInfo(template BSSMAP_oldToNewBSSIEs val := *)
+ return template BSSMAP_IE_OldToNewBSSInfo {
+ if (istemplatekind(val, "*")) {
+ return *;
+ } else if (istemplatekind(val, "?")) {
+ return ?;
+ } else if (istemplatekind(val, "omit")) {
+ return omit;
+ } else {
+ return tr_BSSMAP_IE_OldToNewBSSInfo(val);
+ }
+}
+
template (value) BSSMAP_IE_Osmo_OsmuxSupport tr_BSSMAP_IE_Osmo_OsmuxSupport := {
elementIdentifier := 'F0'O
}
@@ -815,7 +833,8 @@ template PDU_BSSAP tr_BSSMAP_ClearRequest modifies tr_BSSAP_BSSMAP := {
}
template PDU_BSSAP ts_BSSMAP_HandoverRequired(BssmapCause cause,
- template BSSMAP_FIELD_CellIdentificationList cid_list)
+ template BSSMAP_FIELD_CellIdentificationList cid_list,
+ template (omit) BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := omit)
modifies ts_BSSAP_BSSMAP := {
pdu := {
bssmap := {
@@ -828,7 +847,7 @@ modifies ts_BSSAP_BSSMAP := {
currentChannelType1 := omit,
speechVersion := omit,
queueingIndicator := omit,
- oldToNewBSSInfo := omit,
+ oldToNewBSSInfo := f_ts_BSSMAP_IE_OldToNewBSSInfo(oldToNewBSSIEs),
sourceToTargetRNCTransparentInfo := omit,
sourceToTargetRNCTransparentInfoCDMA := omit,
gERANClassmark := omit,
@@ -841,11 +860,12 @@ modifies ts_BSSAP_BSSMAP := {
}
-template PDU_BSSAP tr_BSSMAP_HandoverRequired modifies tr_BSSAP_BSSMAP := {
+template PDU_BSSAP tr_BSSMAP_HandoverRequired(template BSSMAP_oldToNewBSSIEs oldToNewBSSIEs := *) modifies tr_BSSAP_BSSMAP := {
pdu := {
bssmap := {
handoverRequired := {
- messageType := '11'O
+ messageType := '11'O,
+ oldToNewBSSInfo := f_tr_BSSMAP_IE_OldToNewBSSInfo(oldToNewBSSIEs)
}
}
}