e2sim/e2sim.cpp

   1 /*****************************************************************************
   2 #                                                                            *
   3 # Copyright 2019 AT&T Intellectual Property                                  *
   4 # Copyright 2019 Nokia                                                       *
   5 #                                                                            *
   6 # Licensed under the Apache License, Version 2.0 (the "License");            *
   7 # you may not use this file except in compliance with the License.           *
   8 # You may obtain a copy of the License at                                    *
   9 #                                                                            *
  10 #      http://www.apache.org/licenses/LICENSE-2.0                            *
  11 #                                                                            *
  12 # Unless required by applicable law or agreed to in writing, software        *
  13 # distributed under the License is distributed on an "AS IS" BASIS,          *
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   *
  15 # See the License for the specific language governing permissions and        *
  16 # limitations under the License.                                             *
  17 #                                                                            *
  18 ******************************************************************************/
  19
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <string>
  23 #include <iostream>
  24
  25
  26 #include "e2sim_defs.h"
  27 #include "e2sim_sctp.hpp"
  28 #include "e2ap_message_handler.hpp"
  29
  30 using namespace std;
  31
  32 int main(int argc, char* argv[]){
  33   LOG_I("Start E2 Agent (E2 Simulator)");
  34
  35   options_t ops = read_input_options(argc, argv);
  36
  37   //E2 Agent will automatically restart upon sctp disconnection
  38   int server_fd = sctp_start_server(ops.server_ip, ops.server_port);
  39   int client_fd = sctp_accept_connection(ops.server_ip, server_fd);
  40
  41   sctp_buffer_t recv_buf;
  42
  43   LOG_I("[SCTP] Waiting for SCTP data");
  44
  45   while(1) //constantly looking for data on SCTP interface
  46   {
  47     if(sctp_receive_data(client_fd, recv_buf) <= 0)
  48       break;
  49
  50     LOG_I("[SCTP] Received new data of size %d", recv_buf.len);
  51
  52     e2ap_handle_sctp_data(client_fd, recv_buf);
  53   }
  54
  55   return 0;
  56 }