Enhanced SIM for E2AP v1 for TS UC
[sim/e2-interface.git] / e2sim / e2apv1sim / extras / ricsim.cpp
diff --git a/e2sim/e2apv1sim/extras/ricsim.cpp b/e2sim/e2apv1sim/extras/ricsim.cpp
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+/*****************************************************************************
+#                                                                            *
+# Copyright 2019 AT&T Intellectual Property                                  *
+# Copyright 2019 Nokia                                                       *
+#                                                                            *
+# Licensed under the Apache License, Version 2.0 (the "License");            *
+# you may not use this file except in compliance with the License.           *
+# You may obtain a copy of the License at                                    *
+#                                                                            *
+#      http://www.apache.org/licenses/LICENSE-2.0                            *
+#                                                                            *
+# Unless required by applicable law or agreed to in writing, software        *
+# distributed under the License is distributed on an "AS IS" BASIS,          *
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   *
+# See the License for the specific language governing permissions and        *
+# limitations under the License.                                             *
+#                                                                            *
+******************************************************************************/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include "e2sim_sctp.hpp"
+#include "e2ap_message_handler.hpp"
+
+extern "C" {
+  #include "e2sim_defs.h"
+  #include "E2AP-PDU.h"
+  #include "e2ap_asn1c_codec.h"
+  #include "GlobalE2node-ID.h"
+  #include "GlobalE2node-gNB-ID.h"
+  #include "GlobalgNB-ID.h"
+  #include "OCTET_STRING.h"
+  #include "asn_application.h"
+  #include "GNB-ID-Choice.h"
+  #include "ProtocolIE-Field.h"
+  #include "E2setupRequest.h"
+}
+
+using namespace std;
+
+/*
+struct {
+  type **array;
+  int count;
+  int size;
+  void (*free)(decltype(*array));
+} 
+*/
+
+void encode_and_send_sctp_data(E2AP_PDU_t* pdu, int client_fd)
+{
+  uint8_t       *buf;
+  sctp_buffer_t data;
+
+  data.len = e2ap_asn1c_encode_pdu(pdu, &buf);
+  memcpy(data.buffer, buf, min(data.len, MAX_SCTP_BUFFER));
+
+  sctp_send_data(client_fd, data);
+}
+
+void wait_for_sctp_data(int client_fd)
+{
+  sctp_buffer_t recv_buf;
+  if(sctp_receive_data(client_fd, recv_buf) > 0)
+  {
+    LOG_I("[SCTP] Received new data of size %d", recv_buf.len);
+    e2ap_handle_sctp_data(client_fd, recv_buf);
+  }
+}
+
+int main(int argc, char* argv[]){
+  LOG_I("Start RIC Simulator");
+
+  options_t ops = read_input_options(argc, argv);
+  int client_fd = sctp_start_client(ops.server_ip, ops.server_port);
+
+  //1. Send ENDCX2Setup
+  //  E2AP_PDU_t* pdu_setup = e2ap_xml_to_pdu("E2AP_ENDCX2SetupRequest.xml");
+
+  printf("out0\n");
+
+  uint8_t *buf = (uint8_t *)"gnb1";
+
+  BIT_STRING_t gnb_bstring;
+  gnb_bstring.buf = buf;
+  gnb_bstring.size = 4;
+  gnb_bstring.bits_unused = 0;
+
+  printf("out1\n");
+  
+
+  uint8_t *buf2 = (uint8_t *)"plmn3";
+  OCTET_STRING_t plmn;
+  plmn.buf = buf2;
+  plmn.size = 5;
+
+  GNB_ID_Choice_t gnbchoice;
+  GNB_ID_Choice_PR pres2 = GNB_ID_Choice_PR_gnb_ID;
+  gnbchoice.present = pres2;
+  gnbchoice.choice.gnb_ID = gnb_bstring;
+
+  GlobalgNB_ID_t gnb;
+  gnb.plmn_id = plmn;
+  gnb.gnb_id = gnbchoice;
+
+
+
+  GlobalE2node_gNB_ID_t *e2gnb = (GlobalE2node_gNB_ID_t*)calloc(1, sizeof(GlobalE2node_gNB_ID_t));
+  e2gnb->global_gNB_ID = gnb;
+
+  /*
+  GlobalE2node_ID_t *globale2nodeid = (GlobalE2node_ID_t*)calloc(1, sizeof(GlobalE2node_ID_t));
+  GlobalE2node_ID_PR pres;
+  pres = GlobalE2node_ID_PR_gNB;
+  globale2nodeid->present = pres;
+  globale2nodeid->choice.gNB = e2gnb;
+  */
+
+  GlobalE2node_ID_t globale2nodeid;
+  GlobalE2node_ID_PR pres;
+  pres = GlobalE2node_ID_PR_gNB;
+  globale2nodeid.present = pres;
+  globale2nodeid.choice.gNB = e2gnb;  
+  
+  E2setupRequestIEs_t *e2setuprid = (E2setupRequestIEs_t*)calloc(1, sizeof(E2setupRequest_t));;
+  E2setupRequestIEs__value_PR pres3;
+  pres3 = E2setupRequestIEs__value_PR_GlobalE2node_ID;
+  e2setuprid->id = 4;
+  e2setuprid->criticality = 0;
+  e2setuprid->value.choice.GlobalE2node_ID = globale2nodeid;
+  e2setuprid->value.present = pres3;
+
+
+  E2setupRequest_t e2setupreq;
+  e2setupreq.protocolIEs.list.size = sizeof(E2setupRequestIEs);
+  e2setupreq.protocolIEs.list.count = 1;
+  e2setupreq.protocolIEs.list.array = &e2setuprid;
+
+  InitiatingMessage__value_PR pres4;
+  pres4 = InitiatingMessage__value_PR_E2setupRequest;
+  InitiatingMessage_t *initmsg = (InitiatingMessage_t*)calloc(1, sizeof(InitiatingMessage_t));
+  initmsg->procedureCode = 1;
+  initmsg->criticality = 0;
+  initmsg->value.present = pres4;
+  initmsg->value.choice.E2setupRequest = e2setupreq;
+
+  E2AP_PDU_PR pres5;
+  pres5 = E2AP_PDU_PR_initiatingMessage;
+  
+  E2AP_PDU_t *e2ap_pdu = (E2AP_PDU_t*)calloc(1, sizeof(E2AP_PDU_t));
+  e2ap_pdu->present = pres5;
+  e2ap_pdu->choice.initiatingMessage = initmsg;
+  
+  printf("over here\n");
+
+  asn_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu);
+
+
+  printf("over here 2\n");
+  
+  xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu);
+
+  printf("over here 55\n");
+
+  E2AP_PDU_t* pdu_setup = e2ap_xml_to_pdu("E2AP_SetupRequest2.xml");
+  e2ap_asn1c_print_pdu(pdu_setup);
+  encode_and_send_sctp_data(pdu_setup, client_fd);
+  LOG_I("[SCTP] Sent ENDC X2 SETUP REQUEST");
+
+
+  //  E2setupRequest_t* pdu_setup = smaller_e2ap_xml_to_pdu("E2AP_PartSetupRequest.xml");
+  //  e2ap_asn1c_print_pdu(pdu_setup);
+  //  encode_and_send_sctp_data(pdu_setup, client_fd);
+  LOG_I("[SCTP] Sent ENDC X2 SETUP REQUEST");
+
+  /*
+  GlobalE2node_ID_t* pdu_setup = smaller_e2ap_xml_to_pdu("GlobalE2node-ID.xml");
+
+  asn_fprint(stdout, &asn_DEF_GlobalE2node_ID, pdu_setup);
+
+  printf("over here 2\n");
+  
+  xer_fprint(stdout, &asn_DEF_GlobalE2node_ID, pdu_setup);  
+  */
+  /*
+  e2ap_asn1c_print_pdu(pdu_setup);
+  encode_and_send_sctp_data(pdu_setup, client_fd);
+  */
+  LOG_I("[SCTP] Sent ENDC X2 SETUP REQUEST");  
+
+  
+  //2. Receive ENDCX2SetupResponse
+  wait_for_sctp_data(client_fd);
+
+  //3. Send RICSubscriptionRequest
+  /*
+  E2AP_PDU_t* pdu_sub = e2ap_xml_to_pdu("E2AP_RICsubscriptionRequest_Ashwin.xml");
+  e2ap_asn1c_print_pdu(pdu_sub);
+  encode_and_send_sctp_data(pdu_sub, client_fd);
+  LOG_I("[SCTP] Sent RIC SUBSCRIPTION REQUEST");
+  */
+  //4. Receive RICSubscriptionResponse
+  while(1){
+    wait_for_sctp_data(client_fd);
+  }
+
+
+  //---------------------------------------
+  close(client_fd);
+  LOG_I("[SCTP] Connection closed.");
+
+  return 0;
+
+}