fix for Ran UE Ngap ID

src/amf-app/amf_n2.cpp

@@ -584,7 +584,7 @@ void amf_n2::handle_itti_message(itti_initial_ue_message& init_ue_msg) {
 
   // UE NGAP Context
   uint32_t ran_ue_ngap_id = 0;
-  if ((ran_ue_ngap_id = init_ue_msg.initUeMsg->getRanUENgapID()) == 0) {
+  if (!init_ue_msg.initUeMsg->getRanUENgapID(ran_ue_ngap_id)) {
     Logger::amf_n2().error("Missing Mandatory IE (RanUeNgapId)");
     return;
   }

src/ngap/ngapMsgs/InitialUEMessage.cpp

@@ -389,11 +389,12 @@ bool InitialUEMessageMsg::decodefrompdu(Ngap_NGAP_PDU_t* ngap_msg_pdu) {
 }
 
 //------------------------------------------------------------------------------
-uint32_t InitialUEMessageMsg::getRanUENgapID() {
+bool InitialUEMessageMsg::getRanUENgapID(uint32_t& value) {
   if (ranUeNgapId) {
-    return ranUeNgapId->getRanUeNgapId();
+    value = ranUeNgapId->getRanUeNgapId();
+    return true;
   } else {
-    return 0;
+    return false;
   }
 }
 

src/ngap/ngapMsgs/InitialUEMessage.hpp

@@ -61,7 +61,7 @@ class InitialUEMessageMsg {
   int encode2buffer(uint8_t* buf, int buf_size);
   // Decapsulation
   bool decodefrompdu(Ngap_NGAP_PDU_t* ngap_msg_pdu);
-  uint32_t getRanUENgapID();
+  bool getRanUENgapID(uint32_t& value);
   bool getNasPdu(uint8_t*& nas, size_t& sizeofnas);
   bool getUserLocationInfoNR(struct NrCgi_s& cig, struct Tai_s& tai);
   int getRRCEstablishmentCause();