Support for service update E2 Message

[sim/e2-interface.git] / e2sim / src / messagerouting / e2ap_message_handler.cpp

diff --git a/e2sim/src/messagerouting/e2ap_message_handler.cpp b/e2sim/src/messagerouting/e2ap_message_handler.cpp
index 0e23c8d..3ecc2f0 100644 (file)
--- a/e2sim/src/messagerouting/e2ap_message_handler.cpp
+++ b/e2sim/src/messagerouting/e2ap_message_handler.cpp
@@ -3,6 +3,7 @@
 /*****************************************************************************\r
 #                                                                            *\r
 # Copyright 2020 AT&T Intellectual Property                                  *\r
+# Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved.      *\r
 #                                                                            *\r
 # Licensed under the Apache License, Version 2.0 (the "License");            *\r
 # you may not use this file except in compliance with the License.           *\r
@@ -172,7 +173,40 @@ void e2ap_handle_sctp_data(int &socket_fd, sctp_buffer_t &data, bool xmlenc, E2S
           break;\r
        }\r
       break;\r
-      \r
+\r
+    case ProcedureCode_id_RICserviceQuery:\r
+      switch (index)\r
+        {\r
+          case E2AP_PDU_PR_initiatingMessage:\r
+          LOG_I("[E2AP] Received RIC-Service-Query")\r
+          e2ap_handle_E2SeviceRequest(pdu, socket_fd, e2sim);\r
+          break;\r
+\r
+          default:\r
+            LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
+                                    (int)ProcedureCode_id_RICserviceQuery);\r
+          break;\r
+        }\r
+      break;\r
+\r
+    case ProcedureCode_id_RICserviceUpdate:\r
+      switch (index)\r
+        {\r
+          case E2AP_PDU_PR_successfulOutcome:\r
+          LOG_I("[E2AP] Received RIC-SERVICE-UPDATE-SUCCESS")\r
+          break;\r
+\r
+          case E2AP_PDU_PR_unsuccessfulOutcome:\r
+          LOG_I("[E2AP] Received RIC-SERVICE-UPDATE-FAILURE")\r
+          break;\r
+\r
+          default:\r
+            LOG_E("[E2AP] Invalid message index=%d in E2AP-PDU %d", index,\r
+                                    (int)ProcedureCode_id_RICserviceUpdate);\r
+          break;\r
+        }\r
+      break;\r
+    \r
     default:\r
       \r
       LOG_E("[E2AP] No available handler for procedureCode=%d", procedureCode);\r
@@ -181,6 +215,59 @@ void e2ap_handle_sctp_data(int &socket_fd, sctp_buffer_t &data, bool xmlenc, E2S
     }\r
 }\r
 \r
+void e2ap_handle_E2SeviceRequest(E2AP_PDU_t* pdu, int &socket_fd, E2Sim *e2sim) {\r
+\r
+  auto buffer_size = MAX_SCTP_BUFFER;\r
+  unsigned char buffer[MAX_SCTP_BUFFER];\r
+  E2AP_PDU_t* res_pdu = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));\r
+\r
+  // prepare ran function defination\r
+  std::vector<encoding::ran_func_info> all_funcs;\r
+\r
+  //Loop through RAN function definitions that are registered\r
+\r
+  for (std::pair<long, OCTET_STRING_t*> elem : e2sim->getRegistered_ran_functions()) {\r
+    printf("looping through ran func\n");\r
+    encoding::ran_func_info next_func;\r
+\r
+    next_func.ranFunctionId = elem.first;\r
+    next_func.ranFunctionDesc = elem.second;\r
+    next_func.ranFunctionRev = (long)3;\r
+    all_funcs.push_back(next_func);\r
+  }\r
+    \r
+  printf("about to call service update encode\n");\r
+\r
+  encoding::generate_e2apv1_service_update(res_pdu, all_funcs);\r
+\r
+  LOG_D("[E2AP] Created E2-SERVICE-UPDATE");\r
+\r
+  e2ap_asn1c_print_pdu(res_pdu);\r
+\r
+  sctp_buffer_t data;\r
+\r
+  char *error_buf = (char*)calloc(300, sizeof(char));\r
+  size_t errlen;\r
+\r
+  asn_check_constraints(&asn_DEF_E2AP_PDU, res_pdu, error_buf, &errlen);\r
+  printf("error length %d\n", errlen);\r
+  printf("error buf %s\n", error_buf);\r
+\r
+  auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, res_pdu, buffer, buffer_size);\r
+\r
+  data.len = er.encoded;\r
+  fprintf(stderr, "er encoded is %d\n", er.encoded);\r
+\r
+  memcpy(data.buffer, buffer, er.encoded);\r
+\r
+  //send response data over sctp\r
+  if(sctp_send_data(socket_fd, data) > 0) {\r
+    LOG_I("[SCTP] Sent E2-SERVICE-UPDATE");\r
+  } else {\r
+    LOG_E("[SCTP] Unable to send E2-SERVICE-UPDATE to peer");\r
+  }\r
+}\r
+\r
 void e2ap_handle_E2SetupRequest(E2AP_PDU_t* pdu, int &socket_fd) {\r
 \r
   \r