+++ /dev/null
-/*****************************************************************************
-# *
-# 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 <string>
-#include <iostream>
-#include <fstream>
-#include <vector>
-
-#include "e2sim.hpp"
-#include "e2sim_defs.h"
-#include "e2sim_sctp.hpp"
-#include "e2ap_message_handler.hpp"
-#include "encode_e2apv1.hpp"
-
-using namespace std;
-
-int client_fd = 0;
-
-void E2Sim::register_subscription_callback(long func_id, SubscriptionCallback cb) {
- printf("%%%%about to register callback for subscription for func_id %d\n", func_id);
- subscription_callbacks[func_id] = cb;
-
-}
-
-SubscriptionCallback E2Sim::get_subscription_callback(long func_id) {
- printf("%%%%we are getting the subscription callback for func id %d\n", func_id);
- SubscriptionCallback cb = subscription_callbacks[func_id];
- return cb;
-
-}
-
-void E2Sim::register_e2sm(long func_id, OCTET_STRING_t *ostr) {
-
- //Error conditions:
- //If we already have an entry for func_id
-
- printf("%%%%about to register e2sm func desc for %d\n", func_id);
-
- ran_functions_registered[func_id] = ostr;
-
-}
-
-
-void E2Sim::encode_and_send_sctp_data(E2AP_PDU_t* pdu)
-{
- 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 E2Sim::wait_for_sctp_data()
-{
- 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, false, this);
- }
-}
-
-
-int E2Sim::run_loop(int argc, char* argv[]){
-
- printf("Start E2 Agent (E2 Simulator\n");
-
- ifstream simfile;
- string line;
-
- simfile.open("simulation.txt", ios::in);
-
- if (simfile.is_open()) {
-
- while (getline(simfile, line)) {
- cout << line << "\n";
- }
-
- simfile.close();
-
- }
-
- bool xmlenc = false;
-
- options_t ops = read_input_options(argc, argv);
-
- printf("After reading input options\n");
-
- //E2 Agent will automatically restart upon sctp disconnection
- // int server_fd = sctp_start_server(ops.server_ip, ops.server_port);
-
- client_fd = sctp_start_client(ops.server_ip, ops.server_port);
- E2AP_PDU_t* pdu_setup = (E2AP_PDU_t*)calloc(1,sizeof(E2AP_PDU));
-
- printf("After starting client\n");
- printf("client_fd value is %d\n", client_fd);
-
- std::vector<ran_func_info> all_funcs;
-
- //Loop through RAN function definitions that are registered
-
- for (std::pair<long, OCTET_STRING_t*> elem : ran_functions_registered) {
- printf("looping through ran func\n");
- ran_func_info next_func;
-
- next_func.ranFunctionId = elem.first;
- next_func.ranFunctionDesc = elem.second;
- next_func.ranFunctionRev = (long)2;
- all_funcs.push_back(next_func);
- }
-
- printf("about to call setup request encode\n");
-
- generate_e2apv1_setup_request_parameterized(pdu_setup, all_funcs);
-
- printf("After generating e2setup req\n");
-
- xer_fprint(stderr, &asn_DEF_E2AP_PDU, pdu_setup);
-
- printf("After XER Encoding\n");
-
- auto buffer_size = MAX_SCTP_BUFFER;
- unsigned char buffer[MAX_SCTP_BUFFER];
-
- sctp_buffer_t data;
-
- char *error_buf = (char*)calloc(300, sizeof(char));
- size_t errlen;
-
- asn_check_constraints(&asn_DEF_E2AP_PDU, pdu_setup, error_buf, &errlen);
- printf("error length %d\n", errlen);
- printf("error buf %s\n", error_buf);
-
- auto er = asn_encode_to_buffer(nullptr, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, pdu_setup, buffer, buffer_size);
-
- data.len = er.encoded;
-
- fprintf(stderr, "er encded is %d\n", er.encoded);
-
- memcpy(data.buffer, buffer, er.encoded);
-
- if(sctp_send_data(client_fd, data) > 0) {
- LOG_I("[SCTP] Sent E2-SETUP-REQUEST");
- } else {
- LOG_E("[SCTP] Unable to send E2-SETUP-REQUEST to peer");
- }
-
- sctp_buffer_t recv_buf;
-
- LOG_I("[SCTP] Waiting for SCTP data");
-
- while(1) //constantly looking for data on SCTP interface
- {
- if(sctp_receive_data(client_fd, recv_buf) <= 0)
- break;
-
- LOG_I("[SCTP] Received new data of size %d", recv_buf.len);
-
- e2ap_handle_sctp_data(client_fd, recv_buf, xmlenc, this);
- if (xmlenc) xmlenc = false;
- }
-
- return 0;
-}
Code Review / sim / e2-interface.git / blobdiff