pespin has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/35884?usp=email )
Change subject: epdg: Introduce test TC_ho_lte_to_wifi
......................................................................
epdg: Introduce test TC_ho_lte_to_wifi
This test emulates a UE doing handover to ePDG, when it may create extra
dedicated bearers.
Change-Id: Ibdfeda1fa5d7016b1952d64b306cd501cb33f61b
---
M epdg/EPDG_Tests.ttcn
M library/GTPv2_Templates.ttcn
2 files changed, 137 insertions(+), 21 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/84/35884/1
diff --git a/epdg/EPDG_Tests.ttcn b/epdg/EPDG_Tests.ttcn
index e5cdafd..14bb060 100644
--- a/epdg/EPDG_Tests.ttcn
+++ b/epdg/EPDG_Tests.ttcn
@@ -488,6 +488,47 @@
}
}
+/* Expect CreateBearerResponse */
+private altstep as_GTP2C_CreateBearer_success() runs on EPDG_ConnHdlr {
+ var PDU_GTPCv2 rx_msg;
+
+ [] GTP2.receive(tr_GTP2C_CreateBearerResp(g_pars.teic_local)) -> value
rx_msg {
+ setverdict(pass);
+ }
+ [] GTP2.receive(PDU_GTPCv2:?) -> value rx_msg {
+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
log2str("Unexpected GTP2C msg rx: ", rx_msg));
+ }
+}
+private function f_GTP2C_CreateBearer_success(uint4_t dedicated_bearer_id :=
6) runs on EPDG_ConnHdlr {
+
+ var template (value) FullyQualifiedTEID fteid_u_ie :=
ts_GTP2C_FTEID(FTEID_IF_S2bU_ePDG_GTPU, g_pars.bearer.teid_local,
dedicated_bearer_id,
+
f_inet_addr(mp_s2b_local_ip), omit);
+ var template (value) FullyQualifiedTEID_List teid_list := { fteid_u_ie
};
+
+ var template (value) FullyQualifiedPDN_ConnectionSetID pgw_fq_csid :=
ts_GTP2C_FQCSID_IPv4(f_inet_addr(mp_s2b_local_ip), int2oct(dedicated_bearer_id,
2));
+ var template (value) FullyQualifiedPDN_ConnectionSetID_List csid_list
:= { pgw_fq_csid };
+
+ var template (value) BearerContextGrouped_List bcg_list := {
+ ts_GTP2C_BcGrouped({
+ ePS_Bearer_ID :=
ts_GTP2C_EpsBearerId(dedicated_bearer_id),
+ cause := omit,
+ ePS_Bearer_TFT := omit,
+ fullyQualifiedTEID := teid_list,
+ bearerLevel_QoS := ts_GTP2C_BearerQos('09'O,
0,0,0,0),
+ chargingID :=
ts_GTP2C_ChargingID(f_rnd_octstring(4)),
+ bearerFlags := omit,
+ transactionIdentifier := omit,
+ protocolConfigOptions := omit,
+ rAN_NASCause := omit,
+ additionalProtocolConfigOptions := omit,
+ extendedProtocolConfigOptions := omit
+ })
+ };
+ GTP2.send(ts_GTP2C_CreateBearerReq(g_pars.teic_remote, omit,
g_pars.bearer.ebi,
+ dedicated_bearer_id, bcg_list,
csid_list));
+ as_GTP2C_CreateBearer_success();
+}
+
/* Expect DeleteBearerResponse */
private altstep as_GTP2C_DeleteBearer_success() runs on EPDG_ConnHdlr {
var PDU_GTPCv2 rx_msg;
@@ -618,6 +659,23 @@
setverdict(pass);
}
+private function f_TC_ho_lte_to_wifi(charstring id) runs on EPDG_ConnHdlr {
+ f_initial_attach();
+ /* Whenever UE comes from 3GPP, PGW may activate a dedicated S2b bearer
+ * and notify ePDG with a Create Bearer Request */
+ f_GTP2C_CreateBearer_success();
+ f_GSUP_PurgeMS_success();
+}
+
+testcase TC_ho_lte_to_wifi() runs on MTC_CT {
+ var EPDG_ConnHdlrPars pars := f_init_pars();
+ var EPDG_ConnHdlr vc_conn;
+ f_init();
+ vc_conn := f_start_handler(refers(f_TC_ho_lte_to_wifi), pars);
+ vc_conn.done;
+ setverdict(pass);
+}
+
private function f_TC_ho_wifi_to_lte(charstring id) runs on EPDG_ConnHdlr {
f_initial_attach();
/* Whenever UE goes back to 3GPP, PGW will notify ePDG with a Delete
Bearer Request
@@ -636,6 +694,7 @@
control {
execute ( TC_authinfo_normal() );
+ execute ( TC_ho_lte_to_wifi() );
execute ( TC_ho_wifi_to_lte() );
}
diff --git a/library/GTPv2_Templates.ttcn b/library/GTPv2_Templates.ttcn
index afe0138..9f242ee 100644
--- a/library/GTPv2_Templates.ttcn
+++ b/library/GTPv2_Templates.ttcn
@@ -671,6 +671,13 @@
pTI_Value := pti,
additionalOctets := omit
}
+private function f_ts_GTP2C_ProcTransId_omit(template (omit) integer pti)
+return template (omit) ProcedureTransactionID {
+ if (istemplatekind(pti, "omit")) {
+ return omit;
+ }
+ return ts_GTP2C_ProcTransId(pti);
+}
template (present) ProcedureTransactionID
tr_GTP2C_ProcTransId(template (present) integer pti) := {
elementIdentifier := '64'O,
@@ -725,7 +732,35 @@
additionalOctets := *
}
-
+/* 8.62 Fully qualified PDN Connection Set Identifier (FQ-CSID) */
+template (value) NodeID ts_GTP2C_FQCSID_NodeID_IPv4(template (value) OCT4
addr) := {
+ globalUnicastIPv4 := addr
+}
+template (value) FullyQualifiedPDN_ConnectionSetID
+ts_GTP2C_FQCSID(template (value) integer nRofCSIDs,
+ template (value) integer nodeIDType,
+ template (value) NodeID nodeID,
+ template (value) PDN_CSID_List pDN_CSID_List,
+ template (value) uint4_t instance := 0) := {
+ elementIdentifier := '84'O,
+ lengthIndicator := 0, /* overwritten */
+ instance := int2bit(valueof(instance), 4),
+ spare := '0000'B,
+ nRofCSIDs := nRofCSIDs,
+ nodeIDType := nodeIDType,
+ nodeID := nodeID,
+ pDN_CSID_List := pDN_CSID_List,
+ additionalOctets := omit
+}
+template (value) FullyQualifiedPDN_ConnectionSetID
+ts_GTP2C_FQCSID_IPv4(template (value) OCT4 addr,
+ template (value) OCT2 csid,
+ template (value) uint4_t instance := 0) :=
+ts_GTP2C_FQCSID(nRofCSIDs := 1,
+ nodeIDType := 0,
+ nodeID := ts_GTP2C_FQCSID_NodeID_IPv4(addr),
+ pDN_CSID_List := {csid},
+ instance := instance);
template (value) PDU_GTPCv2 ts_PDU_GTP2C(template (omit) OCT4 teid, template
(value) OCT3 seq,
@@ -1068,33 +1103,19 @@
template (value) PDU_GTPCv2
ts_GTP2C_CreateBearerReq(template (value) OCT4 d_teid,
- template (value) integer proc_trans_id,
+ template (omit) integer proc_trans_id,
template (value) uint4_t linked_id,
template (value) uint4_t bearer_id,
- template (omit) FullyQualifiedTEID_List teid_list,
+ template (value) BearerContextGrouped_List
bearer_ctx_list,
+ template (omit) FullyQualifiedPDN_ConnectionSetID_List
csid := omit,
template (value) Bearer_QoS qos :=
ts_GTP2C_BearerQos('09'O, 0,0,0,0)) :=
ts_PDU_GTP2C(d_teid, '000000'O, '5F'O, {
createBearerRequest := {
- procedureTransactionID := ts_GTP2C_ProcTransId(proc_trans_id),
+ procedureTransactionID :=
f_ts_GTP2C_ProcTransId_omit(proc_trans_id),
linkedEPS_BearerID := ts_GTP2C_EpsBearerId(linked_id),
protocolConfigOptions := omit,
- bearerContextGrouped := {
- ts_GTP2C_BcGrouped({
- ePS_Bearer_ID :=
ts_GTP2C_EpsBearerId(bearer_id),
- cause := omit,
- ePS_Bearer_TFT := omit,
- fullyQualifiedTEID := teid_list,
- bearerLevel_QoS := qos,
- chargingID := omit,
- bearerFlags := omit,
- transactionIdentifier := omit,
- protocolConfigOptions := omit,
- rAN_NASCause := omit,
- additionalProtocolConfigOptions := omit,
- extendedProtocolConfigOptions := omit
- })
- },
- csid := omit,
+ bearerContextGrouped := bearer_ctx_list,
+ csid := csid,
changeReportingAction := omit,
cSG_InformationReportingAction := omit,
heNBInformationReporting := omit,
@@ -1105,6 +1126,30 @@
nBIFOMContainer := omit,
privateExtension := omit
}});
+template (present) PDU_GTPCv2
+tr_GTP2C_CreateBearerResp(template (present) OCT4 d_teid,
+ template (present) OCT3 seq := ?,
+ template (present) GTP2C_Cause cause := ?
+ ) :=
+tr_PDU_GTP2C(d_teid, seq, {
+ createBearerResponse := {
+ cause := tr_GTP2C_Cause(cause),
+ bearerContextGrouped := *,
+ recovery := *,
+ csid := *,
+ protocolConfigOptions := *,
+ uE_TimeZone := *,
+ uLI := *,
+ trustedWLANAccessNetworkIdentifier := *,
+ overloadControlInformationGrouped := *,
+ presenceReportingAreaInformation := *,
+ iP_Addr := *,
+ wLANLocationTimestamp := *,
+ portNumber := *,
+ nBIFOMContainer := *,
+ extendedProtocolConfigOptions := *,
+ privateExtension:= *
+ }});
template (present) PDU_GTPCv2
tr_GTP2C_ModifyBearerReq(template (present) OCT4 d_teid := ?,
--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Ibdfeda1fa5d7016b1952d64b306cd501cb33f61b
Gerrit-Change-Number: 35884
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
Gerrit-MessageType: newchange
