e2ap: change func signature and move logic to the function

srsgnb/hdr/stack/ric/e2sm.h

@@ -57,7 +57,7 @@ public:
   std::string get_func_description() { return _func_description; };
   uint32_t    get_revision() { return _revision; };
 
-  virtual bool generate_ran_function_description(RANfunction_description& desc, srsran::unique_byte_buffer_t& buf)   = 0;
+  virtual bool generate_ran_function_description(RANfunction_description& desc, ra_nfunction_item_s& ran_func)       = 0;
   virtual bool process_ric_event_trigger_definition(ricsubscription_request_s     subscription_request,
                                                     RIC_event_trigger_definition_t& event_def)                       = 0;
   virtual bool process_ric_action_definition(ri_caction_to_be_setup_item_s ric_action,

srsgnb/hdr/stack/ric/e2sm_kpm.h

@@ -48,7 +48,7 @@ public:
   e2sm_kpm(srslog::basic_logger& logger_);
   ~e2sm_kpm() = default;
 
-  virtual bool generate_ran_function_description(RANfunction_description& desc, srsran::unique_byte_buffer_t& buf);
+  virtual bool generate_ran_function_description(RANfunction_description& desc, ra_nfunction_item_s& ran_func);
   virtual bool process_ric_event_trigger_definition(ricsubscription_request_s       subscription_request,
                                                     RIC_event_trigger_definition_t& event_def);
   virtual bool process_ric_action_definition(ri_caction_to_be_setup_item_s ric_action, E2AP_RIC_action_t& action_entry);

srsgnb/src/stack/ric/e2ap.cc

@@ -52,13 +52,7 @@ e2_ap_pdu_c e2ap::generate_setup_request()
     ran_func.ran_function_id       = local_ran_function_id;
     ran_func.ran_function_revision = sm_ptr->get_revision();
     ran_func.ran_function_oid.from_string(sm_ptr->get_oid().c_str());
-
-    auto&                        ran_func_def = ran_func.ran_function_definition;
-    srsran::unique_byte_buffer_t buf          = srsran::make_byte_buffer();
-    sm_ptr->generate_ran_function_description(x.second, buf);
-    ran_func_def.resize(buf->N_bytes);
-    buf->msg[1] = 0x30; // TODO: needed to keep wireshak happy, need better fix
-    std::copy(buf->msg, buf->msg + buf->N_bytes, ran_func_def.data());
+    sm_ptr->generate_ran_function_description(x.second, ran_func);
     idx++;
   }
 

srsgnb/src/stack/ric/e2sm_kpm.cc

@@ -14,7 +14,7 @@ e2sm_kpm::e2sm_kpm(srslog::basic_logger& logger_) : e2sm(short_name, oid, func_d
   supported_meas_types.push_back("test");
 }
 
-bool e2sm_kpm::generate_ran_function_description(RANfunction_description& desc, srsran::unique_byte_buffer_t& buf)
+bool e2sm_kpm::generate_ran_function_description(RANfunction_description& desc, ra_nfunction_item_s& ran_func)
 {
   desc.function_shortname = short_name;
   desc.function_e2_sm_oid = oid;
@@ -78,12 +78,18 @@ bool e2sm_kpm::generate_ran_function_description(RANfunction_description& desc,
   report_style_list[4].ric_ind_msg_format_type = 3;
   */
   logger.info("Generating RAN function description");
+  srsran::unique_byte_buffer_t buf = srsran::make_byte_buffer();
   asn1::bit_ref                bref(buf->msg, buf->get_tailroom());
   if (e2sm_kpm_ra_nfunction_description.pack(bref) != asn1::SRSASN_SUCCESS) {
     printf("Failed to pack TX E2 PDU\n");
     return false;
   }
   buf->N_bytes = bref.distance_bytes();
+
+  ran_func.ran_function_definition.resize(buf->N_bytes);
+  buf->msg[1] = 0x30; // TODO: needed to keep wireshak happy, need better fix
+  std::copy(buf->msg, buf->msg + buf->N_bytes, ran_func.ran_function_definition.data());
+
   return true;
 }