Service request initiation

src/ue/nas/mm/mm.hpp

@@ -44,6 +44,8 @@ class NasMm
     std::unique_ptr<nas::ServiceRequest> m_lastServiceRequest{};
     // Indicates the last de-registration cause
     EDeregCause m_lastDeregCause{};
+    // Indicates the last service request cause
+    EServiceReqCause m_lastServiceReqCause{};
     // Last time PLMN search is triggered
     long m_lastPlmnSearchTrigger{};
     // Registration attempt counter

src/ue/nas/mm/service.cpp

@@ -105,6 +105,7 @@ void NasMm::sendServiceRequest(EServiceReqCause reqCause)
     // Send the message and process the timers
     sendNasMessage(*request);
     m_lastServiceRequest = std::move(request);
+    m_lastServiceReqCause = reqCause;
     m_timers->t3517.start();
     switchMmState(EMmState::MM_SERVICE_REQUEST_INITIATED, EMmSubState::MM_SERVICE_REQUEST_INITIATED_NA);
 }