xapp-bs-connector --> xapp-sm-connector
This commit is contained in:
Leonardo Bonati
266
setup/xapp-sm-connector/src/xapp-asn/e2ap/e2ap_control.cc
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266
setup/xapp-sm-connector/src/xapp-asn/e2ap/e2ap_control.cc
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/*
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==================================================================================
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Copyright (c) 2019-2020 AT&T Intellectual Property.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================================
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*/
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/*
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* ric_control_request.c
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*
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* Created on: Jul 11, 2019
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* Author: sjana, Ashwin Sridharan
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*/
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#include "e2ap_control.hpp"
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// Set up memory allocations for each IE for encoding
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// We are responsible for memory management for each IE for encoding
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// Hence destructor should clear out memory
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// When decoding, we rely on asn1c macro (ASN_STRUCT_FREE to be called
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// for releasing memory by external calling function)
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ric_control_request::ric_control_request(void){
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e2ap_pdu_obj = 0;
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e2ap_pdu_obj = (E2AP_PDU_t * )calloc(1, sizeof(E2AP_PDU_t));
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assert(e2ap_pdu_obj != 0);
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initMsg = 0;
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initMsg = (InitiatingMessage_t * )calloc(1, sizeof(InitiatingMessage_t));
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assert(initMsg != 0);
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IE_array = 0;
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IE_array = (RICcontrolRequest_IEs_t *)calloc(NUM_CONTROL_REQUEST_IES, sizeof(RICcontrolRequest_IEs_t));
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assert(IE_array != 0);
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e2ap_pdu_obj->present = E2AP_PDU_PR_initiatingMessage;
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e2ap_pdu_obj->choice.initiatingMessage = initMsg;
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};
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// Clear assigned protocolIE list from RIC control_request IE container
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ric_control_request::~ric_control_request(void){
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mdclog_write(MDCLOG_DEBUG, "Freeing E2AP Control Request object memory");
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RICcontrolRequest_t *ricControl_Request = &(initMsg->value.choice.RICcontrolRequest);
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for(int i = 0; i < ricControl_Request->protocolIEs.list.size; i++){
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ricControl_Request->protocolIEs.list.array[i] = 0;
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}
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if (ricControl_Request->protocolIEs.list.size > 0){
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free(ricControl_Request->protocolIEs.list.array);
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ricControl_Request->protocolIEs.list.size = 0;
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ricControl_Request->protocolIEs.list.count = 0;
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}
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free(IE_array);
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free(initMsg);
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e2ap_pdu_obj->choice.initiatingMessage = 0;
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ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, e2ap_pdu_obj);
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mdclog_write(MDCLOG_DEBUG, "Freed E2AP Control Request object mempory");
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}
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bool ric_control_request::encode_e2ap_control_request(unsigned char *buf, size_t *size, ric_control_helper & dinput){
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initMsg->procedureCode = ProcedureCode_id_RICcontrol;
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initMsg->criticality = Criticality_ignore;
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initMsg->value.present = InitiatingMessage__value_PR_RICcontrolRequest;
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bool res;
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res = set_fields(initMsg, dinput);
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if (!res){
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return false;
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}
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int ret_constr = asn_check_constraints(&asn_DEF_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len);
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if(ret_constr){
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error_string.assign(errbuf, errbuf_len);
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error_string = "Constraints failed for encoding control . Reason = " + error_string;
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return false;
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}
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//xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj);
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asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, e2ap_pdu_obj, buf, *size);
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if(retval.encoded == -1){
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error_string.assign(strerror(errno));
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return false;
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}
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else {
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if(*size < retval.encoded){
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std::stringstream ss;
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ss <<"Error encoding event trigger definition. Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;
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error_string = ss.str();
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return false;
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}
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}
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*size = retval.encoded;
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return true;
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}
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bool ric_control_request::set_fields(InitiatingMessage_t *initMsg, ric_control_helper &dinput){
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unsigned int ie_index;
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if (initMsg == 0){
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error_string = "Invalid reference for E2AP Control_Request message in set_fields";
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return false;
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}
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RICcontrolRequest_t * ric_control_request = &(initMsg->value.choice.RICcontrolRequest);
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ric_control_request->protocolIEs.list.count = 0; // reset
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// for(i = 0; i < NUM_CONTROL_REQUEST_IES;i++){
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// memset(&(IE_array[i]), 0, sizeof(RICcontrolRequest_IEs_t));
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// }
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// Mandatory IE
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ie_index = 0;
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RICcontrolRequest_IEs_t *ies_ricreq = &IE_array[ie_index];
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ies_ricreq->criticality = Criticality_reject;
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ies_ricreq->id = ProtocolIE_ID_id_RICrequestID;
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ies_ricreq->value.present = RICcontrolRequest_IEs__value_PR_RICrequestID;
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RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID;
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ricrequest_ie->ricRequestorID = dinput.req_id;
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//ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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// Mandatory IE
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ie_index = 1;
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RICcontrolRequest_IEs_t *ies_ranfunc = &IE_array[ie_index];
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ies_ranfunc->criticality = Criticality_reject;
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ies_ranfunc->id = ProtocolIE_ID_id_RANfunctionID;
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ies_ranfunc->value.present = RICcontrolRequest_IEs__value_PR_RANfunctionID;
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RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID;
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*ranfunction_ie = dinput.func_id;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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// Mandatory IE
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ie_index = 2;
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RICcontrolRequest_IEs_t *ies_richead = &IE_array[ie_index];
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ies_richead->criticality = Criticality_reject;
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ies_richead->id = ProtocolIE_ID_id_RICcontrolHeader;
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ies_richead->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolHeader;
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RICcontrolHeader_t *richeader_ie = &ies_richead->value.choice.RICcontrolHeader;
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richeader_ie->buf = dinput.control_header;
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richeader_ie->size = dinput.control_header_size;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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// Mandatory IE
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ie_index = 3;
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RICcontrolRequest_IEs_t *ies_indmsg = &IE_array[ie_index];
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ies_indmsg->criticality = Criticality_reject;
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ies_indmsg->id = ProtocolIE_ID_id_RICcontrolMessage;
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ies_indmsg->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolMessage;
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RICcontrolMessage_t *ricmsg_ie = &ies_indmsg->value.choice.RICcontrolMessage;
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ricmsg_ie->buf = dinput.control_msg;
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ricmsg_ie->size = dinput.control_msg_size;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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// Optional IE
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ie_index = 4;
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if (dinput.control_ack >= 0){
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RICcontrolRequest_IEs_t *ies_indtyp = &IE_array[ie_index];
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ies_indtyp->criticality = Criticality_reject;
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ies_indtyp->id = ProtocolIE_ID_id_RICcontrolAckRequest;
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ies_indtyp->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolAckRequest;
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RICcontrolAckRequest_t *ricackreq_ie = &ies_indtyp->value.choice.RICcontrolAckRequest;
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*ricackreq_ie = dinput.control_ack;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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}
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// Optional IE
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ie_index = 5;
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if(dinput.call_process_id_size > 0){
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RICcontrolRequest_IEs_t *ies_callprocid = &IE_array[ie_index];
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ies_callprocid->criticality = Criticality_reject;
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ies_callprocid->id = ProtocolIE_ID_id_RICcallProcessID;
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ies_callprocid->value.present = RICcontrolRequest_IEs__value_PR_RICcallProcessID;
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RICcallProcessID_t *riccallprocessid_ie = &ies_callprocid->value.choice.RICcallProcessID;
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riccallprocessid_ie->buf = dinput.call_process_id;
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riccallprocessid_ie->size = dinput.call_process_id_size;
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ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[ie_index]));
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}
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return true;
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};
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bool ric_control_request:: get_fields(InitiatingMessage_t * init_msg, ric_control_helper &dout)
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{
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if (init_msg == 0){
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error_string = "Invalid reference for E2AP Control_Request message in get_fields";
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return false;
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}
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for(int edx = 0; edx < init_msg->value.choice.RICcontrolRequest.protocolIEs.list.count; edx++) {
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RICcontrolRequest_IEs_t *memb_ptr = init_msg->value.choice.RICcontrolRequest.protocolIEs.list.array[edx];
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switch(memb_ptr->id)
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{
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case (ProtocolIE_ID_id_RICcontrolHeader):
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dout.control_header = memb_ptr->value.choice.RICcontrolHeader.buf;
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dout.control_header_size = memb_ptr->value.choice.RICcontrolHeader.size;
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break;
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case (ProtocolIE_ID_id_RICcontrolMessage):
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dout.control_msg = memb_ptr->value.choice.RICcontrolMessage.buf;
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dout.control_msg_size = memb_ptr->value.choice.RICcontrolMessage.size;
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break;
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case (ProtocolIE_ID_id_RICcallProcessID):
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dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf;
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dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size;
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break;
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case (ProtocolIE_ID_id_RICrequestID):
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dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID;
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//dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber;
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break;
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case (ProtocolIE_ID_id_RANfunctionID):
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dout.func_id = memb_ptr->value.choice.RANfunctionID;
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break;
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case (ProtocolIE_ID_id_RICcontrolAckRequest):
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dout.control_ack = memb_ptr->value.choice.RICcontrolAckRequest;
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break;
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default:
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break;
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}
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}
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return true;
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}
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InitiatingMessage_t * ric_control_request::get_message(void) {
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return initMsg;
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}
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