Itti message to trigger Slice Selection Subscription Data Retrieval

src/amf-app/amf_n1.cpp

@@ -3711,14 +3711,13 @@ bool amf_n1::reroute_registration_request(std::shared_ptr<nas_context>& nc) {
                                                             // UDM
     return false;
   }
-  if (check_requested_nssai(
-          nc,
-          nssai)) {  // Check that AMF can process the Requested NSSAIs or not
+  // Check that AMF can process the Requested NSSAIs or not
+  if (check_requested_nssai(nc, nssai)) {
     return false;
   }
   // Process NS selection to select the appropriate AMF
   std::string nf_instance_id                                    = {};
-  slice_info_fo_registration_t slice_info                       = {};
+  slice_info_for_registration_t slice_info                      = {};
   authorized_network_slice_info_t authorized_network_slice_info = {};
   if (!get_network_slice_selection(
           nf_instance_id, slice_info, authorized_network_slice_info)) {
@@ -3744,13 +3743,16 @@ bool amf_n1::get_slice_selection_subscription_data(
     const std::shared_ptr<nas_context>& nc, nssai_t& nssai) const {
   // TODO: UDM selection (from NRF or configuration file)
   if (amf_cfg.support_features.enable_external_udm) {
+  } else {
+    // TODO: get from the conf file
   }
   return true;
 }
 
 //------------------------------------------------------------------------------
 bool amf_n1::get_network_slice_selection(
-    const std::string& nf_instance_id, slice_info_fo_registration_t& slice_info,
+    const std::string& nf_instance_id,
+    slice_info_for_registration_t& slice_info,
     authorized_network_slice_info_t& authorized_network_slice_info) const {
   // TODO: UDM selection (from NRF or configuration file)
   if (amf_cfg.support_features.enable_external_udm) {
@@ -3758,6 +3760,7 @@ bool amf_n1::get_network_slice_selection(
   return true;
 }
 
+//------------------------------------------------------------------------------
 void amf_n1::send_n1_message_notity(
     const std::shared_ptr<nas_context>& nc,
     const std::string& target_amf) const {}

src/amf-app/amf_n2.cpp

@@ -71,7 +71,6 @@ using namespace std;
 extern itti_mw* itti_inst;
 extern amf_n2* amf_n2_inst;
 extern amf_n1* amf_n1_inst;
-extern amf_n11* amf_n11_inst;
 extern amf_config amf_cfg;
 extern amf_app* amf_app_inst;
 extern statistics stacs;

src/common/3gpp_29.531.h

@@ -61,7 +61,7 @@ typedef struct mapping_of_snssai_s {
   snssai_t home_snssai;
 } mapping_of_snssai_t;
 
-typedef struct slice_info_fo_registration_s {
+typedef struct slice_info_for_registration_s {
   std::vector<subscribed_snssai_t> subscribed_nssai;
   std::vector<allowed_nssai_t> allowed_nssai_current_access;
   // allowed_nssai_other_access
@@ -70,7 +70,7 @@ typedef struct slice_info_fo_registration_s {
   bool default_configured_snssai_ind;
   std::vector<mapping_of_snssai_t> mapping_of_nssai;
   bool request_mapping;
-} slice_info_fo_registration_t;
+} slice_info_for_registration_t;
 
 typedef struct configured_snssai_s {
   snssai_t configured_snssai;

src/itti/itti_msg.hpp

@@ -86,6 +86,7 @@ typedef enum {
   N11_UPDATE_NF_INSTANCE_REQUEST,
   N11_UPDATE_NF_INSTANCE_RESPONSE,
   N11_DEREGISTER_NF_INSTANCE,
+  N11_SLICE_SELECTION_SUBSCRIPTION_DATA,
   SBI_EVENT_EXPOSURE_REQUEST,
   SBI_NOTIFICATION_DATA,
   SBI_NOTIFY_SUBSCRIBED_EVENT,

src/itti/msgs/itti_msg_n11.hpp

@@ -191,4 +191,20 @@ class itti_n11_deregister_nf_instance : public itti_msg_n11 {
   std::string amf_instance_id;
 };
 
+//-----------------------------------------------------------------------------
+class itti_n11_slice_selection_subscription_data : public itti_msg_n11 {
+ public:
+  itti_n11_slice_selection_subscription_data(
+      const task_id_t orig, const task_id_t dest)
+      : itti_msg_n11(N11_SLICE_SELECTION_SUBSCRIPTION_DATA, orig, dest),
+        http_version(1) {}
+  const char* get_msg_name() {
+    return "N11_SLICE_SELECTION_SUBSCRIPTION_DATA";
+  };
+
+  uint8_t http_version;
+  std::string supi;
+  plmn_t plmn;
+};
+
 #endif