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s1ap/S1AP_Templates.ttcn: Add templates to handle CS Fallback related procedures

These will be used to test MT CS call over SGsAP in MME_Tests_SGsAP.

Change-Id: I87fa7d988bec90ccade2f40ac4d2a0924059058e
---
M library/s1ap/S1AP_Templates.ttcn
1 file changed, 101 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/82/41082/1

diff --git a/library/s1ap/S1AP_Templates.ttcn b/library/s1ap/S1AP_Templates.ttcn
index 031ac59..bf79073 100644
--- a/library/s1ap/S1AP_Templates.ttcn
+++ b/library/s1ap/S1AP_Templates.ttcn
@@ -17,6 +17,8 @@
 import from S1AP_PDU_Contents all;
 import from S1AP_PDU_Descriptions all;
 
+import from General_Types all;
+
 /*********************************************************************************
  * non-UE related
  *********************************************************************************/
@@ -1015,6 +1017,90 @@
 	}
 }
 
+function f_tr_S1AP_UeContextModificationReq(template (present) MME_UE_S1AP_ID mme_id := ?,
+					    template (present) ENB_UE_S1AP_ID enb_id := ?,
+					    template CSFallbackIndicator csfb_ind := omit,
+					    template LAI registered_lai := omit,
+					    template AdditionalCSFallbackIndicator add_csfb_ind := omit)
+return template (present) S1AP_PDU {
+	var template (present) S1AP_PDU pdu := {
+		initiatingMessage := {
+			procedureCode := id_UEContextModification,
+			criticality := reject,
+			value_ := {
+				UEContextModificationRequest := {
+					protocolIEs := {
+						{
+							id := S1AP_Constants.id_MME_UE_S1AP_ID,
+							criticality := reject,
+							value_ := {MME_UE_S1AP_ID := mme_id}
+						}, {
+							id := S1AP_Constants.id_eNB_UE_S1AP_ID,
+							criticality := reject,
+							value_ := {ENB_UE_S1AP_ID := enb_id}
+						}
+					}
+				}
+			}
+		}
+	};
+	var integer idx := lengthof(pdu.initiatingMessage.value_.UEContextModificationRequest.protocolIEs);
+
+	if (not istemplatekind(csfb_ind, "omit")) {
+		pdu.initiatingMessage.value_.UEContextModificationRequest.protocolIEs[idx] := {
+			id := id_CSFallbackIndicator,
+			criticality := reject,
+			value_ := { CSFallbackIndicator := csfb_ind }
+			};
+		idx := idx + 1;
+	}
+
+	if (not istemplatekind(registered_lai, "omit")) {
+		pdu.initiatingMessage.value_.UEContextModificationRequest.protocolIEs[idx] := {
+			id := id_RegisteredLAI,
+			criticality := ignore,
+			value_ := { LAI := registered_lai }
+			};
+		idx := idx + 1;
+	}
+
+	if (not istemplatekind(add_csfb_ind, "omit")) {
+		pdu.initiatingMessage.value_.UEContextModificationRequest.protocolIEs[idx] := {
+			id := id_AdditionalCSFallbackIndicator,
+			criticality := ignore,
+			value_ := { AdditionalCSFallbackIndicator := add_csfb_ind }
+			};
+		idx := idx + 1;
+	}
+	return pdu;
+}
+
+/* 9.1.4.98 UE CONTEXT MODIFICATION RESPONSE */
+template (value) S1AP_PDU
+ts_S1AP_UeContextModificationResp(template (value) MME_UE_S1AP_ID mme_id,
+				  template (value) ENB_UE_S1AP_ID enb_id) := {
+	successfulOutcome := {
+		procedureCode := id_UEContextModification,
+		criticality := reject,
+		value_ := {
+			UEContextModificationResponse := {
+				protocolIEs := {
+					{
+						id := S1AP_Constants.id_MME_UE_S1AP_ID,
+						criticality := reject,
+						value_ := {MME_UE_S1AP_ID := mme_id}
+					}, {
+						id := S1AP_Constants.id_eNB_UE_S1AP_ID,
+						criticality := reject,
+						value_ := {ENB_UE_S1AP_ID := enb_id}
+					}
+					/* TODO: Criticality Diagnostics IE (Optional) */
+				}
+			}
+		}
+	}
+}
+
 /* 9.1.4.20 CONNECTION ESTABLISHMENT INDICATION */
 template (value) S1AP_PDU
 ts_S1AP_ConnEstInd(template (value) MME_UE_S1AP_ID mme_id,
@@ -2798,4 +2884,19 @@
 	}
 }
 
+/* 9.2.3.1 LAI */
+template (value) LAI ts_S1AP_LAI(template (value) PLMNidentity plmn_id,
+				 template (value) OCT2 lac) := {
+	pLMNidentity := plmn_id,
+	lAC := lac,
+	iE_Extensions := omit
+};
+
+template (present) LAI tr_S1AP_LAI(template (present) PLMNidentity plmn_id := ?,
+				   template (present) OCT2 lac := ?) := {
+	pLMNidentity := plmn_id,
+	lAC := lac,
+	iE_Extensions := *
+};
+
 }

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