update it

src/mme/emm_sm.c

@@ -64,7 +64,7 @@ void emm_state_operational(fsm_t *s, event_t *e)
                 {
                     mme_esm_t *esm = mme_esm_first(ue);
 
-                    d_info("[NAS] Location Update : EMM[%s] <-- HSS",
+                    d_info("[NAS] Location update : EMM[%s] <-- HSS",
                             ue->imsi_bcd);
                     while(esm)
                     {

src/mme/esm_handler.c

@@ -21,3 +21,8 @@ void esm_handle_pdn_connectivity_request(mme_esm_t *esm,
             pdn_connectivity_request->esm_information_transfer_flag.security_protected_required);
 #endif
 }
+
+void esm_handle_information_response(mme_esm_t *esm, 
+        nas_esm_information_response_t *esm_information_response)
+{
+}

src/mme/esm_handler.h

@@ -9,8 +9,10 @@
 extern "C" {
 #endif /* __cplusplus */
 
-void esm_handle_pdn_connectivity_request(mme_esm_t *esm, 
+CORE_DECLARE(void) esm_handle_pdn_connectivity_request(mme_esm_t *esm, 
         nas_pdn_connectivity_request_t *pdn_connectivity_request);
+CORE_DECLARE(void) esm_handle_information_response(mme_esm_t *esm, 
+        nas_esm_information_response_t *esm_information_response);
 
 #ifdef __cplusplus
 }

src/mme/esm_sm.c

@@ -97,6 +97,14 @@ void esm_state_operational(fsm_t *s, event_t *e)
                             "UE[%s] --> ESM[%d]", ue->imsi_bcd, esm->pti);
                     break;
                 }
+                case NAS_ESM_INFORMATION_RESPONSE:
+                {
+                    esm_handle_information_response(
+                            esm, &message->esm.esm_information_response);
+                    d_info("[NAS] ESM information response : "
+                            "UE[%s] --> ESM[%d]", ue->imsi_bcd, esm->pti);
+                    break;
+                }
                 default:
                 {
                     d_warn("Not implemented(type:%d)",