Service Models support in CU-UP

- e2_ran_func library divided into e2_ran_func_cuup (CU-UP only) and e2_ran_func_du_cucp_cuup (DU, CU, CU-CP and gNB-mono)
  - GTP SM is not yet implemented in CU-UP -> CU-UP doesn't store PDU session information
  - PDCP SM support for gNB-mono, CU and CU-UP
  - KPM SM support for all node types (DU, CU, CU-UP, CU-CP and gNB-mono)

openair2/E2AP/RAN_FUNCTION/O-RAN/CMakeLists.txt

@@ -1,10 +0,0 @@
-add_library(e2_ran_func_oran STATIC 
-          ran_func_kpm.c
-          ran_func_rc.c
-          # For testing purposes 
-  ../../flexric/test/rnd/fill_rnd_data_kpm.c             
-  ../../flexric/test/rnd/fill_rnd_data_rc.c              
-          )
-
-target_link_libraries(e2_ran_func_oran PUBLIC asn1_nr_rrc nr_rrc asn1_nr_rrc_hdrs)
-target_compile_definitions(e2_ran_func_oran PRIVATE ${E2AP_VERSION} ${KPM_VERSION})

openair2/E2AP/RAN_FUNCTION/O-RAN/ran_func_rc.c

@@ -20,7 +20,7 @@
  */
 
 #include "ran_func_rc.h"
-#include "../../flexric/test/rnd/fill_rnd_data_rc.h"
+#include "../../flexric/test/rnd/fill_rnd_data_rc.h"  // this dependancy will be taken out once RAN Function Definition is implemented
 #include "../../flexric/src/sm/rc_sm/ie/ir/lst_ran_param.h"
 #include "../../flexric/src/sm/rc_sm/ie/ir/ran_param_list.h"
 #include "../../flexric/src/agent/e2_agent_api.h"
@@ -30,6 +30,8 @@
 #include <pthread.h>
 #include <unistd.h>
 
+// Please note: current implementation doesn't take split architecture into account, neither CU/DU nor CU-UP/CU-CP
+
 bool read_rc_sm(void* data)
 {
   assert(data != NULL);