X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2FE2AP-c%2Fe2ap_control_response.cc;fp=src%2FE2AP-c%2Fe2ap_control_response.cc;h=382ebc634336fffcd58835b2fb0383c294473d29;hb=b9d7e9c232a4371ddfed51c58e5a57f87b057229;hp=0000000000000000000000000000000000000000;hpb=59f84608ec15c016958a6e0e0ddd813f376c0925;p=ric-app%2Fadmin.git diff --git a/src/E2AP-c/e2ap_control_response.cc b/src/E2AP-c/e2ap_control_response.cc new file mode 100644 index 0000000..382ebc6 --- /dev/null +++ b/src/E2AP-c/e2ap_control_response.cc @@ -0,0 +1,415 @@ +/* +================================================================================== + + Copyright (c) 2018-2019 AT&T Intellectual Property. + + 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. +================================================================================== +*/ +/* + * ric_control_response.c + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#include + +// Set up the initiating message and also allocate protocolIEs in container +// Note : this bypasses requirement to use ASN_SEQUENCE_ADD. We can directly +// assign pointers to the array in ProtocolIE. However, this also leaves us on the +// hook to manually clear the memory + +ric_control_response::ric_control_response(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2AP_PDU_t * )calloc(1, sizeof(E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + successMsg = 0; + successMsg = (SuccessfulOutcome_t * )calloc(1, sizeof(SuccessfulOutcome_t)); + assert(successMsg != 0); + + successMsg->procedureCode = ProcedureCode_id_ricControl; + successMsg->criticality = Criticality_reject; + successMsg->value.present = SuccessfulOutcome__value_PR_RICcontrolAcknowledge; + + + unsuccessMsg = 0; + unsuccessMsg = (UnsuccessfulOutcome_t * )calloc(1, sizeof(UnsuccessfulOutcome_t)); + assert(unsuccessMsg != 0); + + + unsuccessMsg->procedureCode = ProcedureCode_id_ricControl; + unsuccessMsg->criticality = Criticality_reject; + unsuccessMsg->value.present = UnsuccessfulOutcome__value_PR_RICcontrolFailure; + + IE_array = 0; + IE_array = (RICcontrolAcknowledge_IEs_t *)calloc(NUM_CONTROL_ACKNOWLEDGE_IES, sizeof(RICcontrolAcknowledge_IEs_t)); + assert(IE_array != 0); + + RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + for(int i = 0; i < NUM_CONTROL_ACKNOWLEDGE_IES; i++){ + ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), &(IE_array[i])); + } + + + IE_failure_array = 0; + IE_failure_array = (RICcontrolFailure_IEs_t *)calloc(NUM_CONTROL_FAILURE_IES, sizeof(RICcontrolFailure_IEs_t)); + assert(IE_failure_array != 0); + + RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + for(int i = 0; i < NUM_CONTROL_FAILURE_IES; i++){ + ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), &(IE_failure_array[i])); + } + +}; + + +// Clear assigned protocolIE list from RIC control_request IE container +ric_control_response::~ric_control_response(void){ + + mdclog_write(MDCLOG_INFO, "Freeing E2AP Control Response object memory"); + + RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + for(int i = 0; i < ric_acknowledge->protocolIEs.list.size; i++){ + ric_acknowledge->protocolIEs.list.array[i] = 0; + } + if (ric_acknowledge->protocolIEs.list.size > 0){ + free(ric_acknowledge->protocolIEs.list.array); + ric_acknowledge->protocolIEs.list.array = 0; + ric_acknowledge->protocolIEs.list.count = 0; + } + + RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + for(int i = 0; i < ric_failure->protocolIEs.list.size; i++){ + ric_failure->protocolIEs.list.array[i] = 0; + } + if (ric_failure->protocolIEs.list.size > 0){ + free(ric_failure->protocolIEs.list.array); + ric_failure->protocolIEs.list.array = 0; + ric_failure->protocolIEs.list.count = 0; + } + + free(IE_array); + free(IE_failure_array); + free(successMsg); + free(unsuccessMsg); + + e2ap_pdu_obj->choice.initiatingMessage = 0; + e2ap_pdu_obj->present = E2AP_PDU_PR_initiatingMessage; + + ASN_STRUCT_FREE(asn_DEF_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_INFO, "Freed E2AP Control Response object mempory"); +} + + +bool ric_control_response::encode_e2ap_control_response(unsigned char *buf, size_t *size, ric_control_helper & dinput, bool is_success){ + + bool res; + if (is_success){ + res = set_fields(successMsg, dinput); + } + else{ + res = set_fields(unsuccessMsg, dinput); + } + + if (!res){ + return false; + } + + + if (is_success){ + e2ap_pdu_obj->choice.successfulOutcome = successMsg; + e2ap_pdu_obj->present = E2AP_PDU_PR_successfulOutcome ; + } + else{ + e2ap_pdu_obj->choice.unsuccessfulOutcome = unsuccessMsg; + e2ap_pdu_obj->present = E2AP_PDU_PR_unsuccessfulOutcome ; + + } + + //xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj); + + int ret_constr = asn_check_constraints(&asn_DEF_E2AP_PDU, (void *) e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(errbuf, errbuf_len); + error_string = "Constraints failed for encoding control response. Reason = " + error_string; + return false; + } + + asn_enc_rval_t retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2AP_PDU, e2ap_pdu_obj, buf, *size); + + if(retval.encoded == -1){ + error_string.assign(strerror(errno)); + return false; + } + else { + if(*size < retval.encoded){ + std::stringstream ss; + ss <<"Error encoding E2AP Control response . Reason = encoded pdu size " << retval.encoded << " exceeds buffer size " << *size << std::endl; + error_string = ss.str(); + return false; + } + } + + *size = retval.encoded; + return true; + +} + +bool ric_control_response::set_fields(SuccessfulOutcome_t *successMsg, ric_control_helper &dinput){ + unsigned int ie_index; + + if (successMsg == 0){ + error_string = "Invalid reference for E2AP Control Acknowledge in set_fields"; + return false; + } + + // for(i = 0; i < NUM_CONTROL_ACKNOWLEDGE_IES;i++){ + // memset(&(IE_array[i]), 0, sizeof(RICcontrolAcknowledge_IEs_t)); + // } + + //RICcontrolAcknowledge_t * ric_acknowledge = &(successMsg->value.choice.RICcontrolAcknowledge); + //ric_acknowledge->protocolIEs.list.count = 0; + + ie_index = 0; + RICcontrolAcknowledge_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = Criticality_reject; + ies_ricreq->id = ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = RICcontrolAcknowledge_IEs__value_PR_RICrequestID; + RICrequestID_t *ricrequest_ie = &ies_ricreq->value.choice.RICrequestID; + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ricreq); + + ie_index = 1; + RICcontrolAcknowledge_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = Criticality_reject; + ies_ranfunc->id = ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = RICcontrolAcknowledge_IEs__value_PR_RANfunctionID; + RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = dinput.func_id; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ranfunc); + + // ie_index = 2; + // RICcontrolAcknowledge_IEs_t *ies_riccallprocessid = &IE_array[ie_index]; + // ies_riccallprocessid->criticality = Criticality_reject; + // ies_riccallprocessid->id = ProtocolIE_ID_id_RICcallProcessID; + // ies_riccallprocessid->value.present = RICcontrolAcknowledge_IEs__value_PR_RICcallProcessID; + // RICcallProcessID_t *riccallprocessid_ie = &ies_riccallprocessid->value.choice.RICcallProcessID; + // riccallprocessid_ie->buf = dinput.call_process_id; + // riccallprocessid_ie->size = dinput.call_process_id_size; + // ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_riccallprocessid); + + ie_index = 2; + RICcontrolAcknowledge_IEs_t *ies_ric_cause = &IE_array[ie_index]; + ies_ric_cause->criticality = Criticality_reject; + ies_ric_cause->id = ProtocolIE_ID_id_RICcontrolStatus; + ies_ric_cause->value.present = RICcontrolAcknowledge_IEs__value_PR_RICcontrolStatus; + ies_ric_cause->value.choice.RICcontrolStatus = dinput.control_status; + //ASN_SEQUENCE_ADD(&(ric_acknowledge->protocolIEs), ies_ric_cause); + + return true; + +}; + +bool ric_control_response::set_fields(UnsuccessfulOutcome_t *unsuccessMsg, ric_control_helper &dinput){ + unsigned int ie_index; + + if (unsuccessMsg == 0){ + error_string = "Invalid reference for E2AP Control Failure in set_fields"; + return false; + } + + // for(i = 0; i < NUM_CONTROL_FAILURE_IES;i++){ + // memset(&(IE_failure_array[i]), 0, sizeof(RICcontrolFailure_IEs_t)); + // } + + //RICcontrolFailure_t * ric_failure = &(unsuccessMsg->value.choice.RICcontrolFailure); + //ric_failure->protocolIEs.list.count = 0; + + ie_index = 0; + RICcontrolFailure_IEs_t *ies_ricreq = &IE_failure_array[ie_index]; + ies_ricreq->criticality = Criticality_reject; + ies_ricreq->id = ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = RICcontrolFailure_IEs__value_PR_RICrequestID; + RICrequestID_t *ricrequest_ie = &(ies_ricreq->value.choice.RICrequestID); + ricrequest_ie->ricRequestorID = dinput.req_id; + ricrequest_ie->ricRequestSequenceNumber = dinput.req_seq_no; + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ricreq); + + ie_index = 1; + RICcontrolFailure_IEs_t *ies_ranfunc = &IE_failure_array[ie_index]; + ies_ranfunc->criticality = Criticality_reject; + ies_ranfunc->id = ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = RICcontrolFailure_IEs__value_PR_RANfunctionID; + RANfunctionID_t *ranfunction_ie = &(ies_ranfunc->value.choice.RANfunctionID); + *ranfunction_ie = dinput.func_id; + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ranfunc); + + // ie_index = 2; + // RICcontrolFailure_IEs_t *ies_riccallprocessid = &IE_failure_array[i]; + // ies_riccallprocessid->criticality = Criticality_reject; + // ies_riccallprocessid->id = ProtocolIE_ID_id_RICcallProcessID; + // ies_riccallprocessid->value.present = RICcontrolFailure_IEs__value_PR_RICcallProcessID; + // RICcallProcessID_t *riccallprocessid_ie = &(ies_riccallprocessid->value.choice.RICcallProcessID); + // riccallprocessid_ie->buf = dinput.call_process_id; + // riccallprocessid_ie->size = dinput.call_process_id_size; + // ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_riccallprocessid); + + ie_index = 2; + RICcontrolFailure_IEs_t *ies_ric_cause = &IE_failure_array[ie_index]; + ies_ric_cause->criticality = Criticality_ignore; + ies_ric_cause->id = ProtocolIE_ID_id_RICcause; + ies_ric_cause->value.present = RICcontrolFailure_IEs__value_PR_RICcause; + RICcause_t * ric_cause = &(ies_ric_cause->value.choice.RICcause); + ric_cause->present = (RICcause_PR)dinput.cause; + + switch(dinput.cause){ + case RICcause_PR_radioNetwork: + ric_cause->choice.radioNetwork = dinput.sub_cause; + break; + case RICcause_PR_transport: + ric_cause->choice.transport = dinput.sub_cause; + break; + case RICcause_PR_protocol: + ric_cause->choice.protocol= dinput.sub_cause; + break; + case RICcause_PR_misc: + ric_cause->choice.misc = dinput.sub_cause; + break; + case RICcause_PR_ric: + ric_cause->choice.ric = dinput.sub_cause; + break; + default: + std::cout <<"Error ! Illegal cause enum" << dinput.cause << std::endl; + return false; + } + + //ASN_SEQUENCE_ADD(&(ric_failure->protocolIEs), ies_ric_cause); + return true; + +}; + + + + +bool ric_control_response:: get_fields(SuccessfulOutcome_t * success_msg, ric_control_helper &dout) +{ + if (success_msg == 0){ + error_string = "Invalid reference for E2AP Control Acknowledge message in get_fields"; + return false; + } + + + for(int edx = 0; edx < success_msg->value.choice.RICcontrolAcknowledge.protocolIEs.list.count; edx++) { + RICcontrolAcknowledge_IEs_t *memb_ptr = success_msg->value.choice.RICcontrolAcknowledge.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + + case (ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + break; + + case (ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + case (ProtocolIE_ID_id_RICcause): + dout.control_status = memb_ptr->value.choice.RICcontrolStatus; + break; + + } + + } + + return true; + +} + + +bool ric_control_response:: get_fields(UnsuccessfulOutcome_t * unsuccess_msg, ric_control_helper &dout) +{ + if (unsuccess_msg == 0){ + error_string = "Invalid reference for E2AP Control Failure message in get_fields"; + return false; + } + + + for(int edx = 0; edx < unsuccess_msg->value.choice.RICcontrolFailure.protocolIEs.list.count; edx++) { + RICcontrolFailure_IEs_t *memb_ptr = unsuccess_msg->value.choice.RICcontrolFailure.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + + case (ProtocolIE_ID_id_RICcallProcessID): + dout.call_process_id = memb_ptr->value.choice.RICcallProcessID.buf; + dout.call_process_id_size = memb_ptr->value.choice.RICcallProcessID.size; + break; + + case (ProtocolIE_ID_id_RICrequestID): + dout.req_id = memb_ptr->value.choice.RICrequestID.ricRequestorID; + dout.req_seq_no = memb_ptr->value.choice.RICrequestID.ricRequestSequenceNumber; + break; + + case (ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + + case (ProtocolIE_ID_id_RICcause): + dout.cause = memb_ptr->value.choice.RICcause.present; + switch(dout.cause){ + case RICcause_PR_radioNetwork : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.radioNetwork; + break; + + case RICcause_PR_transport : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.transport; + break; + + case RICcause_PR_protocol : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.protocol; + break; + + case RICcause_PR_misc : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.misc; + break; + + case RICcause_PR_ric : + dout.sub_cause = memb_ptr->value.choice.RICcause.choice.ric; + break; + + default: + dout.sub_cause = -1; + break; + } + + default: + break; + } + + } + + return true; + +} +