pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/42143?usp=email )
Change subject: 5gc: Introduce test TC_connection_inactive
......................................................................
5gc: Introduce test TC_connection_inactive
The test is expected to fail because open5gs (as of v2.7.3) doesn't
implement such features; see open5gs ticket referenced below.
Related: SYS#7073
Related: open5gs GH#4319
Change-Id: Icf60dde814b7c8ef4cdb4c886423058c7d741a9b
---
M 5gc/C5G_Tests.ttcn
M 5gc/ConnHdlr.ttcn
M 5gc/expected-results.xml
3 files changed, 73 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/43/42143/1
diff --git a/5gc/C5G_Tests.ttcn b/5gc/C5G_Tests.ttcn
index 33aa176..5f1516d 100644
--- a/5gc/C5G_Tests.ttcn
+++ b/5gc/C5G_Tests.ttcn
@@ -202,7 +202,8 @@
ngran_pars := g_ngran_pars,
ue_pars := valueof(ts_UeParams(ue_idx)),
c5g_idx := 0,
- kset_id := valueof(cs_NAS_KeySetIdentifier_lv(tsc_NasKsi_NoKey,
'0'B))
+ kset_id := valueof(cs_NAS_KeySetIdentifier_lv(tsc_NasKsi_NoKey,
'0'B)),
+ exp_CoreNetworkAssistanceInformationForInactive := false
};
return pars;
}
@@ -540,6 +541,37 @@
vc_conn.done;
}
+/* 3GPP TS 23.502 4.8.1.1(a) Connection Inactive procedure */
+private function f_TC_connection_inactive() runs on ConnHdlr {
+ f_register();
+ f_pdu_sess_establish(false);
+
+ /* Figure 4.8.1.1a-1 step 2: "NG-RAN sends N2 MT Communication Handling
request message
+ * to AMF indicating the UE is transitioning to RRC_INACTIVE state". */
+ f_mt_communication_handling();
+
+
+ f_sleep(1.0);
+ f_ue_context_release();
+}
+testcase TC_connection_inactive() runs on MTC_CT {
+ var ConnHdlr vc_conn;
+ var ConnHdlrPars pars;
+
+ f_init();
+ f_ngap_setup(0);
+
+ pars := f_init_pars(ue_idx := 0);
+ /* Validate we received from CN in "INITIAL CONTEXT SETUP REQUEST":
+ * "CN MT Communication Handling IE" inside "Core Network Assistance
Information for RRC INACTIVE IE",
+ * 3GPP TS 38.413 9.3.1.15.
+ * NOTE: current open5gs v2.7.3 doesn't set it, meaning it doesn't
support RRC_INACTIVE state. */
+ pars.exp_CoreNetworkAssistanceInformationForInactive := true;
+
+ vc_conn := f_start_handler_with_pars(refers(f_TC_connection_inactive),
pars);
+ vc_conn.done;
+}
+
control {
execute( TC_ng_setup() );
execute( TC_ng_setup_unknown_global_gnb_id_plmn() );
@@ -562,6 +594,8 @@
execute( TC_ue_service_request_cm_connected() );
execute( TC_net_triggered_service_req() );
+ execute( TC_connection_inactive() );
+
}
/* TODO:
diff --git a/5gc/ConnHdlr.ttcn b/5gc/ConnHdlr.ttcn
index 0d356b9..ae286c5 100644
--- a/5gc/ConnHdlr.ttcn
+++ b/5gc/ConnHdlr.ttcn
@@ -107,7 +107,9 @@
/* currently used 5GC (index into ngran_pars, NGAP, ...) */
integer c5g_idx,
/* Currently set KSI */
- NAS_KeySetIdentifier kset_id
+ NAS_KeySetIdentifier kset_id,
+ /* Expect "Core Network Assistance Information for RRC INACTIVE" IE
present in Inital Context Setup Request */
+ boolean exp_CoreNetworkAssistanceInformationForInactive
}
type component ConnHdlr extends NGAP_ConnHdlr, GTP1U_ConnHdlr {
@@ -173,6 +175,19 @@
}
}
+private function f_tr_ConnHdlr_CoreNetworkAssistanceInformationForInactive()
runs on ConnHdlr return template CoreNetworkAssistanceInformationForInactive {
+ var template CoreNetworkAssistanceInformationForInactive exp := omit
+ if (g_pars.exp_CoreNetworkAssistanceInformationForInactive) {
+ /* "CN MT Communication Handling IE" inside "Core Network
Assistance Information for RRC INACTIVE IE",
+ * 3GPP TS 38.413 9.3.1.15.
+ * NOTE: current open5gs v2.7.3 doesn't set it, meaning it
doesn't support RRC_INACTIVE state. */
+ var template (present)
CoreNetworkAssistanceInformationForInactive.iE_Extensions ie_ext;
+ ie_ext :=
f_mw_CoreNetworkAssistanceInformationForInactive_ExtIEs(p_cN_MT_CommunicationHandling
:= supported);
+ exp :=
mw_CoreNetworkAssistanceInformationForInactive(p_iE_Extensions := ie_ext);
+ }
+ return exp;
+}
+
/* 3GPP TS 24.501 9.6, 3GPP TS 24.007 11.2.3.1a.
* 0 = "No procedure transaction identity assigned", 255 = "Reserved". */
private function f_next_pti() runs on ConnHdlr return
ProcedureTransactionIdentifier
@@ -365,12 +380,14 @@
mw_ngap_initMsg((f_mw_n2_InitialContextSetupRequest(amf_id,
g_pars.ue_pars.ran_id,
p_uEAggregateMaximumBitRate := ?,
+
p_coreNetworkAssistanceInformationForInactive :=
f_tr_ConnHdlr_CoreNetworkAssistanceInformationForInactive(),
p_pDUSessionResourceSetupListCxtReq := ?,
p_nextHopNH
:= ?,
p_maskedIMEISV := ?),
f_mw_n2_InitialContextSetupRequest(amf_id,
g_pars.ue_pars.ran_id,
p_uEAggregateMaximumBitRate := ?,
+
p_coreNetworkAssistanceInformationForInactive :=
f_tr_ConnHdlr_CoreNetworkAssistanceInformationForInactive(),
p_pDUSessionResourceSetupListCxtReq := ?,
p_nextHopNH
:= ?,
p_maskedIMEISV := ?,
@@ -811,6 +828,23 @@
as_ngap_handle_UeContextReleaseCmd(exp_cause := cause);
}
+/* 3GPP TS 38.413 8.3.13 "MT Communication Handling"
+ * 3GPP TS 23.502 4.8.1.1(a) Connection Inactive procedure step 2. */
+function f_mt_communication_handling() runs on ConnHdlr
+{
+ var template (value) NGAP_PDU tx_pdu;
+
+ tx_pdu := m_ngap_initMsg(m_n2_MTCommunicationHandlingRequest(
+ g_pars.ue_pars.amf_id,
+ g_pars.ue_pars.ran_id,
+
m_FiveGCAction_HLComActivate(m_hLComActivate(m_nR_Paging_Long_eDRX_Information_for_RRC_INACTIVE(hf1024,
s32))),
+
{m_PDUSessionListMTCommHReq_Item(g_pars.ue_pars.sess_pars.id)}));
+ NGAP.send(tx_pdu);
+ NGAP.receive(mw_ngap_succMsg(mw_n2_MTCommunicationHandlingResponse(
+ g_pars.ue_pars.amf_id,
+ g_pars.ue_pars.ran_id)));
+}
+
/* Handle a PDUSessionResourceSetupRequestTransfer contained inside NGAP
InitialContextSetupRequest and return a Result for InitialContextSetupResponse
*/
private function
f_pdu_handle_session_resource_released_item(PDUSessionResourceToReleaseItemRelCmd
cmd) runs on ConnHdlr return PDUSessionResourceReleasedItemRelRes
{
diff --git a/5gc/expected-results.xml b/5gc/expected-results.xml
index f509895..0472dc7 100644
--- a/5gc/expected-results.xml
+++ b/5gc/expected-results.xml
@@ -15,4 +15,7 @@
<testcase classname='C5G_Tests'
name='TC_ue_service_request_cm_idle_unknown_sess_active' time='MASKED'/>
<testcase classname='C5G_Tests' name='TC_ue_service_request_cm_connected'
time='MASKED'/>
<testcase classname='C5G_Tests' name='TC_net_triggered_service_req'
time='MASKED'/>
+ <testcase classname='C5G_Tests' name='TC_connection_inactive' time='MASKED'>
+ <error type='DTE'></error>
+ </testcase>
</testsuite>
--
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Gerrit-MessageType: newchange
Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Icf60dde814b7c8ef4cdb4c886423058c7d741a9b
Gerrit-Change-Number: 42143
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
