2 ==================================================================================
4 Copyright (c) 2018-2019 AT&T Intellectual Property.
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
10 http://www.apache.org/licenses/LICENSE-2.0
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 ==================================================================================
20 * ric_control_request.c
22 * Created on: Jul 11, 2019
23 * Author: sjana, Ashwin Sridharan
26 #include <e2ap_control.hpp>
28 // Set up the initiating message and also allocate protocolIEs in container
29 // Note : this bypasses requirement to use ASN_SEQUENCE_ADD. We can directly
30 // assign pointers to the array in ProtocolIE. However, this also leaves us on the
31 // hook to manually clear the memory
33 ric_control_request::ric_control_request(void){
36 e2ap_pdu_obj = (E2AP_PDU_t * )calloc(1, sizeof(E2AP_PDU_t));
37 assert(e2ap_pdu_obj != 0);
40 initMsg = (InitiatingMessage_t * )calloc(1, sizeof(InitiatingMessage_t));
44 IE_array = (RICcontrolRequest_IEs_t *)calloc(NUM_CONTROL_REQUEST_IES, sizeof(RICcontrolRequest_IEs_t));
45 assert(IE_array != 0);
47 e2ap_pdu_obj->present = E2AP_PDU_PR_initiatingMessage;
48 e2ap_pdu_obj->choice.initiatingMessage = initMsg;
50 RICcontrolRequest_t * ric_control_request = &(initMsg->value.choice.RICcontrolRequest);
51 for(int i = 0; i < NUM_CONTROL_REQUEST_IES; i++){
52 ASN_SEQUENCE_ADD(&(ric_control_request->protocolIEs), &(IE_array[i]));
58 // Clear assigned protocolIE list from RIC control_request IE container
59 ric_control_request::~ric_control_request(void){
61 mdclog_write(MDCLOG_INFO, "Freeing E2AP Control Request object memory");
63 RICcontrolRequest_t *ricControl_Request = &(initMsg->value.choice.RICcontrolRequest);
64 for(int i = 0; i < ricControl_Request->protocolIEs.list.size; i++){
65 ricControl_Request->protocolIEs.list.array[i] = 0;
68 if (ricControl_Request->protocolIEs.list.size > 0){
69 free(ricControl_Request->protocolIEs.list.array);
70 ricControl_Request->protocolIEs.list.size = 0;
71 ricControl_Request->protocolIEs.list.count = 0;
76 e2ap_pdu_obj->choice.initiatingMessage = 0;
78 ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, e2ap_pdu_obj);
79 mdclog_write(MDCLOG_INFO, "Freed E2AP Control Request object mempory");
84 bool ric_control_request::encode_e2ap_control_request(unsigned char *buf, size_t *size, ric_control_helper & dinput){
86 initMsg->procedureCode = ProcedureCode_id_ricControl;
87 initMsg->criticality = Criticality_ignore;
88 initMsg->value.present = InitiatingMessage__value_PR_RICcontrolRequest;
92 res = set_fields(initMsg, dinput);
97 int ret_constr = asn_check_constraints(&asn_DEF_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len);
99 error_string.assign(errbuf, errbuf_len);
100 error_string = "Constraints failed for encoding control . Reason = " + error_string;
104 //xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj);
106 asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, e2ap_pdu_obj, buf, *size);
108 if(retval.encoded == -1){
109 error_string.assign(strerror(errno));
113 if(*size < retval.encoded){
114 std::stringstream ss;
115 ss <<"Error encoding event trigger definition. Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl;
116 error_string = ss.str();
121 *size = retval.encoded;
126 bool ric_control_request::set_fields(InitiatingMessage_t *initMsg, ric_control_helper &dinput){
127 unsigned int ie_index;
130 error_string = "Invalid reference for E2AP Control_Request message in set_fields";
134 // for(i = 0; i < NUM_CONTROL_REQUEST_IES;i++){
135 // memset(&(IE_array[i]), 0, sizeof(RICcontrolRequest_IEs_t));
140 RICcontrolRequest_IEs_t *ies_ricreq = &IE_array[ie_index];
141 ies_ricreq->criticality = Criticality_reject;
142 ies_ricreq->id = ProtocolIE_ID_id_RICrequestID;
143 ies_ricreq->value.present = RICcontrolRequest_IEs__value_PR_RICrequestID;
144 RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID;
145 ricrequest_ie->ricRequestorID = dinput.req_id;
146 ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no;
149 RICcontrolRequest_IEs_t *ies_ranfunc = &IE_array[ie_index];
150 ies_ranfunc->criticality = Criticality_reject;
151 ies_ranfunc->id = ProtocolIE_ID_id_RANfunctionID;
152 ies_ranfunc->value.present = RICcontrolRequest_IEs__value_PR_RANfunctionID;
153 RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID;
154 *ranfunction_ie = dinput.func_id;
158 // RICcontrolRequest_IEs_t *ies_riccallprocessid = &IE_array[ie_index];
159 // ies_riccallprocessid->criticality = Criticality_reject;
160 // ies_riccallprocessid->id = ProtocolIE_ID_id_RICcallProcessID;
161 // ies_riccallprocessid->value.present = RICcontrolRequest_IEs__value_PR_RICcallProcessID;
162 // RICcallProcessID_t *riccallprocessid_ie = &ies_riccallprocessid->value.choice.RICcallProcessID;
163 // riccallprocessid_ie->buf = dinput.call_process_id;
164 // riccallprocessid_ie->size = dinput.call_process_id_size;
167 RICcontrolRequest_IEs_t *ies_richead = &IE_array[ie_index];
168 ies_richead->criticality = Criticality_reject;
169 ies_richead->id = ProtocolIE_ID_id_RICcontrolHeader;
170 ies_richead->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolHeader;
171 RICcontrolHeader_t *richeader_ie = &ies_richead->value.choice.RICcontrolHeader;
172 richeader_ie->buf = dinput.control_header;
173 richeader_ie->size = dinput.control_header_size;
176 RICcontrolRequest_IEs_t *ies_indmsg = &IE_array[ie_index];
177 ies_indmsg->criticality = Criticality_reject;
178 ies_indmsg->id = ProtocolIE_ID_id_RICcontrolMessage;
179 ies_indmsg->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolMessage;
180 RICcontrolMessage_t *ricmsg_ie = &ies_indmsg->value.choice.RICcontrolMessage;
181 ricmsg_ie->buf = dinput.control_msg;
182 ricmsg_ie->size = dinput.control_msg_size;
185 RICcontrolRequest_IEs_t *ies_indtyp = &IE_array[ie_index];
186 ies_indtyp->criticality = Criticality_reject;
187 ies_indtyp->id = ProtocolIE_ID_id_RICcontrolAckRequest;
188 ies_indtyp->value.present = RICcontrolRequest_IEs__value_PR_RICcontrolAckRequest;
189 RICcontrolAckRequest_t *ricackreq_ie = &ies_indtyp->value.choice.RICcontrolAckRequest;
190 *ricackreq_ie = dinput.control_ack;
199 bool ric_control_request:: get_fields(InitiatingMessage_t * init_msg, ric_control_helper &dout)
202 error_string = "Invalid reference for E2AP Control_Request message in get_fields";
207 for(int edx = 0; edx < init_msg->value.choice.RICcontrolRequest.protocolIEs.list.count; edx++) {
208 RICcontrolRequest_IEs_t *memb_ptr = init_msg->value.choice.RICcontrolRequest.protocolIEs.list.array[edx];
212 case (ProtocolIE_ID_id_RICcontrolHeader):
213 dout.control_header = memb_ptr->value.choice.RICcontrolHeader.buf;
214 dout.control_header_size = memb_ptr->value.choice.RICcontrolHeader.size;
217 case (ProtocolIE_ID_id_RICcontrolMessage):
218 dout.control_msg = memb_ptr->value.choice.RICcontrolMessage.buf;
219 dout.control_msg_size = memb_ptr->value.choice.RICcontrolMessage.size;
222 case (ProtocolIE_ID_id_RICcallProcessID):
223 dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf;
224 dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size;
227 case (ProtocolIE_ID_id_RICrequestID):
228 dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID;
229 dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber;
232 case (ProtocolIE_ID_id_RANfunctionID):
233 dout.func_id = memb_ptr->value.choice.RANfunctionID;
236 case (ProtocolIE_ID_id_RICcontrolAckRequest):
237 dout.control_ack = memb_ptr->value.choice.RICcontrolAckRequest;
251 InitiatingMessage_t * ric_control_request::get_message(void) {