X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=Bouncer%2Fsrc%2Fxapp-formats%2Fe2ap%2Fe2ap_indication.cc;fp=Bouncer%2Fsrc%2Fxapp-formats%2Fe2ap%2Fe2ap_indication.cc;h=33b2095416bc642ed7d9c14499c2e813d3ee74df;hb=ff20129c8f517cca6e0b4de6544ff64aebe7c171;hp=0000000000000000000000000000000000000000;hpb=35882dccfbc1b35af0e5704e14e0ecb9eba0f52a;p=ric-app%2Fbouncer.git diff --git a/Bouncer/src/xapp-formats/e2ap/e2ap_indication.cc b/Bouncer/src/xapp-formats/e2ap/e2ap_indication.cc new file mode 100644 index 0000000..33b2095 --- /dev/null +++ b/Bouncer/src/xapp-formats/e2ap/e2ap_indication.cc @@ -0,0 +1,283 @@ +/* +================================================================================== + + 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_indication.c + * + * Created on: Jul 11, 2019 + * Author: sjana, Ashwin Sridharan + */ + +#include "e2ap_indication.hpp" + +// Set up memory allocations for each IE for encoding +// We are responsible for memory management for each IE for encoding +// Hence destructor should clear out memory +// When decoding, we rely on asn1c macro (ASN_STRUCT_FREE to be called +// for releasing memory by external calling function) +ric_indication::ric_indication(void){ + + e2ap_pdu_obj = 0; + e2ap_pdu_obj = (E2N_E2AP_PDU_t * )calloc(1, sizeof(E2N_E2AP_PDU_t)); + assert(e2ap_pdu_obj != 0); + + initMsg = 0; + initMsg = (E2N_InitiatingMessage_t * )calloc(1, sizeof(E2N_InitiatingMessage_t)); + assert(initMsg != 0); + + IE_array = 0; + IE_array = (E2N_RICindication_IEs_t *)calloc(NUM_INDICATION_IES, sizeof(E2N_RICindication_IEs_t)); + assert(IE_array != 0); + + e2ap_pdu_obj->present = E2N_E2AP_PDU_PR_initiatingMessage; + e2ap_pdu_obj->choice.initiatingMessage = initMsg; + + + + +}; + + + +// Clear assigned protocolIE list from RIC indication IE container +ric_indication::~ric_indication(void){ + + mdclog_write(MDCLOG_DEBUG, "Freeing E2AP Indication object memory"); + E2N_RICindication_t *ricIndication = &(initMsg->value.choice.RICindication); + for(int i = 0; i < ricIndication->protocolIEs.list.size; i++){ + ricIndication->protocolIEs.list.array[i] = 0; + } + if (ricIndication->protocolIEs.list.size > 0){ + free(ricIndication->protocolIEs.list.array); + ricIndication->protocolIEs.list.array = 0; + ricIndication->protocolIEs.list.count = 0; + ricIndication->protocolIEs.list.size = 0; + } + + free(IE_array); + ASN_STRUCT_FREE(asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj); + mdclog_write(MDCLOG_DEBUG, "Freed E2AP Indication object mempory"); +} + + +bool ric_indication::encode_e2ap_indication(unsigned char *buf, size_t *size, ric_indication_helper & dinput){ + + initMsg->procedureCode = E2N_ProcedureCode_id_ricIndication; + initMsg->criticality = E2N_Criticality_ignore; + initMsg->value.present = E2N_InitiatingMessage__value_PR_RICindication; + + bool res; + asn_enc_rval_t retval; + + res = set_fields(initMsg, dinput); + if (!res){ + return false; + } + + int ret_constr = asn_check_constraints(&asn_DEF_E2N_E2AP_PDU, e2ap_pdu_obj, errbuf, &errbuf_len); + if(ret_constr){ + error_string.assign(&errbuf[0], errbuf_len); + error_string = "Error encoding E2AP Indication message. Reason = " + error_string; + return false; + } + + // std::cout <<"Constraint check ok ...." << std::endl; + // xer_fprint(stdout, &asn_DEF_E2AP_PDU, e2ap_pdu_obj); + + retval = asn_encode_to_buffer(0, ATS_ALIGNED_BASIC_PER, &asn_DEF_E2N_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 Indication . 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_indication::set_fields(E2N_InitiatingMessage_t *initMsg, ric_indication_helper &dinput){ + unsigned int ie_index; + + if (initMsg == 0){ + error_string = "Invalid reference for E2AP Indication message in set_fields"; + return false; + } + + + E2N_RICindication_t * ric_indication = &(initMsg->value.choice.RICindication); + ric_indication->protocolIEs.list.count = 0; + + ie_index = 0; + + E2N_RICindication_IEs_t *ies_ricreq = &IE_array[ie_index]; + ies_ricreq->criticality = E2N_Criticality_reject; + ies_ricreq->id = E2N_ProtocolIE_ID_id_RICrequestID; + ies_ricreq->value.present = E2N_RICindication_IEs__value_PR_RICrequestID; + E2N_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_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 1; + E2N_RICindication_IEs_t *ies_ranfunc = &IE_array[ie_index]; + ies_ranfunc->criticality = E2N_Criticality_reject; + ies_ranfunc->id = E2N_ProtocolIE_ID_id_RANfunctionID; + ies_ranfunc->value.present = E2N_RICindication_IEs__value_PR_RANfunctionID; + E2N_RANfunctionID_t *ranfunction_ie = &ies_ranfunc->value.choice.RANfunctionID; + *ranfunction_ie = dinput.func_id; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 2; + E2N_RICindication_IEs_t *ies_actid = &IE_array[ie_index]; + ies_actid->criticality = E2N_Criticality_reject; + ies_actid->id = E2N_ProtocolIE_ID_id_RICactionID; + ies_actid->value.present = E2N_RICindication_IEs__value_PR_RICactionID; + E2N_RICactionID_t *ricaction_ie = &ies_actid->value.choice.RICactionID; + *ricaction_ie = dinput.action_id; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 3; + E2N_RICindication_IEs_t *ies_ricsn = &IE_array[ie_index]; + ies_ricsn->criticality = E2N_Criticality_reject; + ies_ricsn->id = E2N_ProtocolIE_ID_id_RICindicationSN; + ies_ricsn->value.present = E2N_RICindication_IEs__value_PR_RICindicationSN; + E2N_RICindicationSN_t *ricsn_ie = &ies_ricsn->value.choice.RICindicationSN; + *ricsn_ie = dinput.indication_sn; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + + ie_index = 4; + E2N_RICindication_IEs_t *ies_indtyp = &IE_array[ie_index]; + ies_indtyp->criticality = E2N_Criticality_reject; + ies_indtyp->id = E2N_ProtocolIE_ID_id_RICindicationType; + ies_indtyp->value.present = E2N_RICindication_IEs__value_PR_RICindicationType; + E2N_RICindicationType_t *rictype_ie = &ies_indtyp->value.choice.RICindicationType; + *rictype_ie = dinput.indication_type; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 5; + E2N_RICindication_IEs_t *ies_richead = &IE_array[ie_index]; + ies_richead->criticality = E2N_Criticality_reject; + ies_richead->id = E2N_ProtocolIE_ID_id_RICindicationHeader; + ies_richead->value.present = E2N_RICindication_IEs__value_PR_RICindicationHeader; + E2N_RICindicationHeader_t *richeader_ie = &ies_richead->value.choice.RICindicationHeader; + richeader_ie->buf = dinput.indication_header; + richeader_ie->size = dinput.indication_header_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + ie_index = 6; + E2N_RICindication_IEs_t *ies_indmsg = &IE_array[ie_index]; + ies_indmsg->criticality = E2N_Criticality_reject; + ies_indmsg->id = E2N_ProtocolIE_ID_id_RICindicationMessage; + ies_indmsg->value.present = E2N_RICindication_IEs__value_PR_RICindicationMessage; + E2N_RICindicationMessage_t *ricmsg_ie = &ies_indmsg->value.choice.RICindicationMessage; + ricmsg_ie->buf = dinput.indication_msg; + ricmsg_ie->size = dinput.indication_msg_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + + + // optional call process id .. + if (dinput.call_process_id_size > 0){ + ie_index = 7; + E2N_RICindication_IEs_t *ies_ind_callprocessid = &IE_array[ie_index]; + ies_ind_callprocessid->criticality = E2N_Criticality_reject; + ies_ind_callprocessid->id = E2N_ProtocolIE_ID_id_RICcallProcessID; + ies_ind_callprocessid->value.present = E2N_RICindication_IEs__value_PR_RICcallProcessID; + E2N_RICcallProcessID_t *riccallprocessid_ie = &ies_ind_callprocessid->value.choice.RICcallProcessID; + riccallprocessid_ie->buf = dinput.indication_msg; + riccallprocessid_ie->size = dinput.indication_msg_size; + ASN_SEQUENCE_ADD(&(ric_indication->protocolIEs), &(IE_array[ie_index])); + } + + return true; + +}; + + + + +bool ric_indication:: get_fields(E2N_InitiatingMessage_t * init_msg, ric_indication_helper &dout) +{ + if (init_msg == 0){ + error_string = "Invalid reference for E2AP Indication message in get_fields"; + return false; + } + + + for(int edx = 0; edx < init_msg->value.choice.RICindication.protocolIEs.list.count; edx++) { + E2N_RICindication_IEs_t *memb_ptr = init_msg->value.choice.RICindication.protocolIEs.list.array[edx]; + + switch(memb_ptr->id) + { + case (E2N_ProtocolIE_ID_id_RICindicationHeader): + dout.indication_header = memb_ptr->value.choice.RICindicationHeader.buf; + dout.indication_header_size = memb_ptr->value.choice.RICindicationHeader.size; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationMessage): + dout.indication_msg = memb_ptr->value.choice.RICindicationMessage.buf; + dout.indication_msg_size = memb_ptr->value.choice.RICindicationMessage.size; + break; + + case (E2N_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 (E2N_ProtocolIE_ID_id_RANfunctionID): + dout.func_id = memb_ptr->value.choice.RANfunctionID; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationSN): + dout.indication_sn = memb_ptr->value.choice.RICindicationSN; + break; + + case (E2N_ProtocolIE_ID_id_RICindicationType): + dout.indication_type = memb_ptr->value.choice.RICindicationType; + break; + + case (E2N_ProtocolIE_ID_id_RICactionID): + dout.action_id = memb_ptr->value.choice.RICactionID; + break; + + case (E2N_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; + + default: + break; + } + + } + + return true; + +} + +E2N_InitiatingMessage_t * ric_indication::get_message(void) { + return initMsg; +}