| /***************************************************************************** |
| # * |
| # 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 "ProtocolIE-Field.h" |
| } |
| |
| using namespace std; |
| |
| 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); |
| } |
| } |
| |
| void set_seqnum(E2AP_PDU_t* pdu) |
| { |
| InitiatingMessage_t *initiatingMessage = pdu->choice.initiatingMessage; |
| // xer_fprint(stdout, &asn_DEF_InitiatingMessage, (void *)initiatingMessage); |
| |
| RICsubscriptionRequest_t *request = &initiatingMessage->value.choice.RICsubscriptionRequest; |
| xer_fprint(stdout, &asn_DEF_RICsubscriptionRequest, (void *)request); |
| |
| LOG_I("num of IEs = %d", request->protocolIEs.list.count); |
| |
| RICsubscriptionRequest_IEs_t *ie; |
| |
| ie = request->protocolIEs.list.array[2]; |
| |
| xer_fprint(stdout, &asn_DEF_RICsubscription, (void *)ie); |
| |
| // e2ap_asn1c_print_pdu(pdu); |
| } |
| |
| int subresponse_get_sequenceNum(E2AP_PDU_t* pdu) |
| { |
| SuccessfulOutcome_t *responseMsg = pdu->choice.successfulOutcome; |
| |
| RICrequestID_t *requestid; |
| |
| int num_IEs = responseMsg->value.choice.RICsubscriptionResponse.protocolIEs.list.count; |
| |
| for(int edx = 0; edx < num_IEs; edx++) |
| { |
| RICsubscriptionResponse_IEs_t *memb_ptr = |
| responseMsg->value.choice.RICsubscriptionResponse.protocolIEs.list.array[edx]; |
| |
| switch(memb_ptr->id) |
| { |
| case (ProtocolIE_ID_id_RICrequestID): |
| requestid = &memb_ptr->value.choice.RICrequestID; |
| // xer_fprint(stdout, &asn_DEF_RICrequestID, (void *)requestid); |
| return requestid->ricRequestSequenceNumber; |
| break; |
| } |
| } |
| } |
| |
| void subrequest_set_sequenceNum(E2AP_PDU_t* pdu, int seq) |
| { |
| InitiatingMessage_t *initiatingMessage = pdu->choice.initiatingMessage; |
| |
| RICrequestID_t *requestid; |
| |
| int num_IEs = initiatingMessage->value.choice.RICsubscriptionRequest.protocolIEs.list.count; |
| |
| for(int edx = 0; edx < num_IEs; edx++) |
| { |
| RICsubscriptionRequest_IEs_t *memb_ptr = |
| initiatingMessage->value.choice.RICsubscriptionRequest.protocolIEs.list.array[edx]; |
| |
| switch(memb_ptr->id) |
| { |
| case (ProtocolIE_ID_id_RICrequestID): |
| requestid = &memb_ptr->value.choice.RICrequestID; |
| requestid->ricRequestSequenceNumber = seq; |
| break; |
| } |
| } |
| |
| } |
| |
| void subscription_response_get_field(E2AP_PDU_t* pdu) |
| { |
| SuccessfulOutcome_t *responseMsg = pdu->choice.successfulOutcome; |
| |
| RICrequestID_t *requestid; |
| RANfunctionID_t * ranfunctionid; |
| RICsubscription_t * ricsubscription; |
| |
| int requestID_val, sequenceNum; |
| |
| int num_IEs = responseMsg->value.choice.RICsubscriptionResponse.protocolIEs.list.count; |
| |
| LOG_I("num of IEs = %d", num_IEs); |
| |
| for(int edx = 0; edx < num_IEs; edx++) |
| { |
| RICsubscriptionResponse_IEs_t *memb_ptr = |
| responseMsg->value.choice.RICsubscriptionResponse.protocolIEs.list.array[edx]; |
| |
| switch(memb_ptr->id) |
| { |
| case (ProtocolIE_ID_id_RICrequestID): |
| requestid = &memb_ptr->value.choice.RICrequestID; |
| xer_fprint(stdout, &asn_DEF_RICrequestID, (void *)requestid); |
| requestID_val = requestid->ricRequestorID; |
| sequenceNum = requestid->ricRequestSequenceNumber; |
| requestid->ricRequestSequenceNumber = 202; |
| break; |
| |
| case (ProtocolIE_ID_id_RANfunctionID): |
| ranfunctionid = &memb_ptr->value.choice.RANfunctionID; |
| xer_fprint(stdout, &asn_DEF_RANfunctionID, (void *)ranfunctionid); |
| break; |
| |
| // case (ProtocolIE_ID_id_RICsubscription): |
| // ricsubscription = &memb_ptr->value.choice.RICsubscription; |
| // xer_fprint(stdout, &asn_DEF_RICsubscription, (void *)ricsubscription); |
| // break; |
| } |
| } |
| |
| LOG_I("Request ID = %d, seq = %d", requestID_val, sequenceNum); |
| } |
| |
| void subscription_request_get_field(E2AP_PDU_t* pdu) |
| { |
| InitiatingMessage_t *initiatingMessage = pdu->choice.initiatingMessage; |
| |
| RICrequestID_t *requestid; |
| RANfunctionID_t * ranfunctionid; |
| RICsubscription_t * ricsubscription; |
| |
| int num_IEs = initiatingMessage->value.choice.RICsubscriptionRequest.protocolIEs.list.count; |
| |
| LOG_I("num of IEs = %d", num_IEs); |
| |
| for(int edx = 0; edx < num_IEs; edx++) |
| { |
| RICsubscriptionRequest_IEs_t *memb_ptr = |
| initiatingMessage->value.choice.RICsubscriptionRequest.protocolIEs.list.array[edx]; |
| |
| switch(memb_ptr->id) |
| { |
| case (ProtocolIE_ID_id_RICrequestID): |
| requestid = &memb_ptr->value.choice.RICrequestID; |
| xer_fprint(stdout, &asn_DEF_RICrequestID, (void *)requestid); |
| break; |
| |
| case (ProtocolIE_ID_id_RANfunctionID): |
| ranfunctionid = &memb_ptr->value.choice.RANfunctionID; |
| xer_fprint(stdout, &asn_DEF_RANfunctionID, (void *)ranfunctionid); |
| break; |
| |
| case (ProtocolIE_ID_id_RICsubscription): |
| ricsubscription = &memb_ptr->value.choice.RICsubscription; |
| xer_fprint(stdout, &asn_DEF_RICsubscription, (void *)ricsubscription); |
| break; |
| } |
| } |
| } |
| |
| int main(int argc, char* argv[]){ |
| LOG_I("Start RIC Simulator - Performance Test"); |
| |
| 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"); |
| // 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 RIC SUBSCRIPT RESPONSE |
| int count = 0; |
| |
| while(1) |
| { |
| usleep(1000); //sleep for one ms |
| |
| sctp_buffer_t recv_buf; |
| |
| int res_seq; |
| |
| 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); |
| |
| E2AP_PDU_t* res_pdu = new E2AP_PDU_t(); |
| |
| e2ap_asn1c_decode_pdu(res_pdu, recv_buf.buffer, recv_buf.len); |
| |
| int procedureCode = e2ap_asn1c_get_procedureCode(res_pdu); |
| int index = (int)res_pdu->present; |
| |
| if(index == E2AP_PDU_PR_successfulOutcome && \ |
| procedureCode == ProcedureCode_id_ricSubscription) |
| { |
| res_seq =subresponse_get_sequenceNum(res_pdu); |
| count++; |
| |
| LOG_I("Received RIC SUBSCRIPTION RESPONSE, seq = %d, totalCount = %d",\ |
| res_seq, count); |
| |
| //Put res_seq in new subscription request |
| E2AP_PDU_t* req_pdu = e2ap_xml_to_pdu("E2AP_RICsubscriptionRequest.xml"); |
| subrequest_set_sequenceNum(req_pdu, res_seq); |
| // e2ap_asn1c_print_pdu(req_pdu); |
| |
| encode_and_send_sctp_data(req_pdu, client_fd); |
| LOG_I("Send new SUBSCRIPT REQUEST, seq = %d", res_seq); |
| } |
| |
| } |
| } |
| |
| |
| // E2AP_PDU_t* res_pdu = e2ap_xml_to_pdu("E2AP_RICsubscriptionResponse.xml"); |
| // |
| // //Extract subscription response sequence number |
| // int res_seq = subresponse_get_sequenceNum(res_pdu); |
| // LOG_I("Subscription Response SeqNo = %d", res_seq); |
| // |
| // //Put responseSeq in new subscription request |
| // E2AP_PDU_t* req_pdu = e2ap_xml_to_pdu("E2AP_RICsubscriptionRequest.xml"); |
| // |
| // subrequest_set_sequenceNum(req_pdu, res_seq); |
| |
| // e2ap_asn1c_print_pdu(req_pdu); |
| |
| return 0; |
| } |