pespin submitted this change.
5gc: Introduce test TC_normal_reg_emergency_services_fallback
Change-Id: I17f15d901a10791ae0ad208b7d6ea9a333b93dad
---
M 5gc/C5G_Tests.ttcn
M 5gc/ConnHdlr.ttcn
M 5gc/expected-results.xml
3 files changed, 60 insertions(+), 3 deletions(-)
diff --git a/5gc/C5G_Tests.ttcn b/5gc/C5G_Tests.ttcn
index b10cef5..2528b77 100644
--- a/5gc/C5G_Tests.ttcn
+++ b/5gc/C5G_Tests.ttcn
@@ -618,8 +618,9 @@
* 3GPP TS 23.502 4.13.4 Emergency Services
*/
private function f_TC_normal_reg_emergency_services() runs on ConnHdlr {
- /* Validate this is set in Register Accept:
+ /* Validate this is supported in Register Accept:
* .... 00.. = Emergency service support indicator (EMC): Emergency services not supported (0)
+ * This will fail currently, see https://github.com/open5gs/open5gs/issues/4359
*/
var template (present) NG_NAS_DL_Message_Type exp_registration_accept :=
cr_NG_REGISTRATION_ACCEPT(p_NwkFeatureSupport := cr_NG_NetworkFeatureSupport(emc := '11'B),
@@ -641,12 +642,51 @@
vc_conn.done;
}
+/* 3GPP TS 23.501 5.16.4.11 Emergency Services Fallback
+ * 3GPP TS 23.502 4.13.4.2 Emergency Services Fallback
+ */
+private function f_TC_normal_reg_emergency_services_fallback() runs on ConnHdlr {
+ /* Validate this is supported in Register Accept:
+ * ..00 .... = Emergency service fallback indicator (EMF): Emergency services fallback not supported (0)
+ * This will fail currently, see https://github.com/open5gs/open5gs/issues/4360
+ */
+ var template (present) NG_NAS_DL_Message_Type exp_registration_accept :=
+ cr_NG_REGISTRATION_ACCEPT(p_NwkFeatureSupport := cr_NG_NetworkFeatureSupport(emf := '11'B));
+ f_register(exp_registration_accept := exp_registration_accept);
+
+ f_service_request_emergency_services_fallback();
+
+ /* TODO: "After receiving the Service Request for Emergency Fallback,
+ * the AMF triggers N2 procedure resulting in either CONNECTED state mobility
+ * (Handover procedure) or IDLE state mobility (redirection) to either E-UTRA/5GC
+ * or to E-UTRAN/EPC depending on factors such as N26 availability, network
+ * configuration and radio conditions."
+ * Since the following cannot yet be configured in open5gs, we cannot really
+ * implement it either here. See also 3GPP TS 23.502 4.13.4.2 step 4 + 5.
+ * Currently open5gs answers the Service Request with a Service Accept, which is wrong.
+ */
+
+ f_sleep(1.0);
+
+ f_deregister();
+}
+testcase TC_normal_reg_emergency_services_fallback() runs on MTC_CT {
+ f_init();
+ f_ngap_setup(0);
+
+ var ConnHdlrPars pars := f_init_pars(ue_idx := 0);
+ var ConnHdlr vc_conn;
+ vc_conn := f_start_handler_with_pars(refers(f_TC_normal_reg_emergency_services_fallback), pars);
+ vc_conn.done;
+}
+
/* 3GPP TS 23.501 5.16.4 Emergency Services
* 3GPP TS 23.502 4.13.4 Emergency Services
*/
private function f_TC_emergency_registration() runs on ConnHdlr {
- /* Validate this is set in Register Accept:
+ /* Validate this is supported in Register Accept:
* .... 00.. = Emergency service support indicator (EMC): Emergency services not supported (0)
+ * This will fail currently, see https://github.com/open5gs/open5gs/issues/4359
*/
var template (present) NG_NAS_DL_Message_Type exp_registration_accept :=
cr_NG_REGISTRATION_ACCEPT(p_NwkFeatureSupport := cr_NG_NetworkFeatureSupport(emc := '11'B),
@@ -897,6 +937,7 @@
execute( TC_connection_suspend() );
execute( TC_normal_reg_emergency_services() );
+ execute( TC_normal_reg_emergency_services_fallback() );
execute( TC_emergency_registration() );
execute( TC_handover_inter_ngran_xn() );
@@ -927,7 +968,6 @@
* - 3GPP TS 23.502 4.13.3.6 MT SMS over NAS in CM-IDLE state and RRC_INACTIVE with CN based MT communication state via 3GPP access
* - 3GPP TS 23.502 4.13.3.7 MT SMS over NAS in CM-CONNECTED state via 3GPP access
* - 3GPP TS 23.502 4.13.3.8 MT SMS over NAS via non-3GPP access
- * - 3GPP TS 23.502 4.13.4.2 Emergency Services Fallback: Not supported by open5gs (see also 3GPP TS 23.501 5.16.4.11)
* - 3GPP TS 23.502 4.13.5 Location Services procedures
* - 3GPP TS 23.502 4.13.6.1 EPS fallback for IMS voice
* - 3GPP TS 23.502 4.13.6.2 Inter RAT Fallback in 5GC for IMS voice
diff --git a/5gc/ConnHdlr.ttcn b/5gc/ConnHdlr.ttcn
index ebe0376..7716cad 100644
--- a/5gc/ConnHdlr.ttcn
+++ b/5gc/ConnHdlr.ttcn
@@ -824,6 +824,20 @@
NGAP.send(tx_pdu);
}
+/* 3GPP TS 23.502 4.13.4.2 Emergency Services Fallback, step 3 + 4 */
+function f_service_request_emergency_services_fallback() runs on ConnHdlr {
+ var template (value) NG_NAS_UL_Message_Type nas_ul_msg;
+ var NAS_PDU nas_pdu;
+
+ nas_ul_msg := cs_NG_SERVICE_REQUEST(c_ServiceType_emergency_services_fallback,
+ g_pars.kset_id,
+ f_NG_MobileIdentity_STMSI(),
+ p_ULDataStatus := f_PDU_SessionStatus(),
+ p_PDU_SessionStatus := f_PDU_SessionStatus());
+ nas_pdu := enc_NG_NAS_UL_Message_Type(valueof(nas_ul_msg));
+ NGAP.send(nas_ul_msg);
+}
+
/* 3GPP TS 24.501 5.5.2.2 UE-initiated de-registration procedure,
* 3GPP TS 23.502 4.2.2.3.2 UE-initiated Deregistration */
function f_deregister() runs on ConnHdlr {
diff --git a/5gc/expected-results.xml b/5gc/expected-results.xml
index 0ad61e3..7dfbcfb 100644
--- a/5gc/expected-results.xml
+++ b/5gc/expected-results.xml
@@ -26,6 +26,9 @@
<testcase classname='C5G_Tests' name='TC_normal_reg_emergency_services' time='MASKED'>
<error type='DTE'></error>
</testcase>
+ <testcase classname='C5G_Tests' name='TC_normal_reg_emergency_services_fallback' time='MASKED'>
+ <error type='DTE'></error>
+ </testcase>
<testcase classname='C5G_Tests' name='TC_emergency_registration' time='MASKED'>
<error type='DTE'></error>
</testcase>
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