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Use F1AP lib for DL RRC Message Transfer in stack

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This commit is contained in:
Guido Casati
2024-09-27 11:22:03 +02:00
parent 718269f1eb
commit 1d0d7e7baf
3 changed files with 28 additions and 185 deletions
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openair2/F1AP/f1ap_cu_rrc_message_transfer.c
+18 -96
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@@ -66,105 +66,27 @@ int CU_handle_INITIAL_UL_RRC_MESSAGE_TRANSFER(instance_t instance, sctp_assoc_t
/*
DL RRC Message Transfer.
*/
int CU_send_DL_RRC_MESSAGE_TRANSFER(sctp_assoc_t assoc_id, f1ap_dl_rrc_message_t *f1ap_dl_rrc)
int CU_send_DL_RRC_MESSAGE_TRANSFER(sctp_assoc_t assoc_id, f1ap_dl_rrc_message_t *msg)
{
LOG_D(F1AP, "CU send DL_RRC_MESSAGE_TRANSFER \n");
F1AP_F1AP_PDU_t pdu= {0};
F1AP_DLRRCMessageTransfer_t *out;
uint8_t *buffer=NULL;
uint32_t len=0;
/* Create */
/* 0. Message Type */
pdu.present = F1AP_F1AP_PDU_PR_initiatingMessage;
asn1cCalloc(pdu.choice.initiatingMessage, tmp);
tmp->procedureCode = F1AP_ProcedureCode_id_DLRRCMessageTransfer;
tmp->criticality = F1AP_Criticality_ignore;
tmp->value.present = F1AP_InitiatingMessage__value_PR_DLRRCMessageTransfer;
out = &tmp->value.choice.DLRRCMessageTransfer;
/* mandatory */
/* c1. GNB_CU_UE_F1AP_ID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie1);
ie1->id = F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
ie1->criticality = F1AP_Criticality_reject;
ie1->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_GNB_CU_UE_F1AP_ID;
DevAssert(f1ap_dl_rrc->gNB_CU_ue_id != 0);
ie1->value.choice.GNB_CU_UE_F1AP_ID = f1ap_dl_rrc->gNB_CU_ue_id;
/* mandatory */
/* c2. GNB_DU_UE_F1AP_ID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie2);
ie2->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie2->criticality = F1AP_Criticality_reject;
ie2->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
DevAssert(f1ap_dl_rrc->gNB_DU_ue_id != 0);
ie2->value.choice.GNB_DU_UE_F1AP_ID = f1ap_dl_rrc->gNB_DU_ue_id;
/* optional */
/* c3. oldgNB_DU_UE_F1AP_ID */
if (f1ap_dl_rrc->old_gNB_DU_ue_id != NULL) {
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie3);
ie3->id = F1AP_ProtocolIE_ID_id_oldgNB_DU_UE_F1AP_ID;
ie3->criticality = F1AP_Criticality_reject;
ie3->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID_1;
ie3->value.choice.GNB_DU_UE_F1AP_ID_1 = *f1ap_dl_rrc->old_gNB_DU_ue_id;
}
/* mandatory */
/* c4. SRBID */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie4);
ie4->id = F1AP_ProtocolIE_ID_id_SRBID;
ie4->criticality = F1AP_Criticality_reject;
ie4->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_SRBID;
ie4->value.choice.SRBID = f1ap_dl_rrc->srb_id;
/* optional */
/* c5. ExecuteDuplication */
if (f1ap_dl_rrc->execute_duplication) {
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie5);
ie5->id = F1AP_ProtocolIE_ID_id_ExecuteDuplication;
ie5->criticality = F1AP_Criticality_ignore;
ie5->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_ExecuteDuplication;
ie5->value.choice.ExecuteDuplication = F1AP_ExecuteDuplication_true;
}
// issue in here
/* mandatory */
/* c6. RRCContainer */
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie6);
ie6->id = F1AP_ProtocolIE_ID_id_RRCContainer;
ie6->criticality = F1AP_Criticality_reject;
ie6->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_RRCContainer;
OCTET_STRING_fromBuf(&ie6->value.choice.RRCContainer,
(const char *)f1ap_dl_rrc->rrc_container, f1ap_dl_rrc->rrc_container_length);
/* optional */
/* c7. RAT_FrequencyPriorityInformation */
/* TODO */
if (0) {
int endc=1;
asn1cSequenceAdd(out->protocolIEs.list, F1AP_DLRRCMessageTransferIEs_t, ie7);
ie7->id = F1AP_ProtocolIE_ID_id_RAT_FrequencyPriorityInformation;
ie7->criticality = F1AP_Criticality_reject;
ie7->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_RAT_FrequencyPriorityInformation;
if (endc==1) {
ie7->value.choice.RAT_FrequencyPriorityInformation.present = F1AP_RAT_FrequencyPriorityInformation_PR_eNDC;
ie7->value.choice.RAT_FrequencyPriorityInformation.choice.eNDC = 123L;
} else {
ie7->value.choice.RAT_FrequencyPriorityInformation.present = F1AP_RAT_FrequencyPriorityInformation_PR_nGRAN;
ie7->value.choice.RAT_FrequencyPriorityInformation.choice.nGRAN = 11L;
}
//ie->value.choice.RAT_FrequencyPriorityInformation.present = F1AP_RAT_FrequencyPriorityInformation_PR_rAT_FrequencySelectionPriority;
//ie->value.choice.RAT_FrequencyPriorityInformation.choice.rAT_FrequencySelectionPriority = 123L;
}
/* encode */
if (f1ap_encode_pdu(&pdu, &buffer, &len) < 0) {
LOG_E(F1AP, "Failed to encode F1 DL RRC MESSAGE TRANSFER \n");
/* encode DL RRC Message Transfer */
F1AP_F1AP_PDU_t *pdu = encode_dl_rrc_message_transfer(msg);
if (pdu == NULL) {
LOG_E(F1AP, "Failed to encode F1 DL RRC MESSAGE TRANSFER: can't send message!\n");
ASN_STRUCT_FREE(asn_DEF_F1AP_F1AP_PDU, pdu);
return -1;
}
/* encode F1AP PDU */
uint8_t *buffer = NULL;
uint32_t len = 0;
if (f1ap_encode_pdu(pdu, &buffer, &len) < 0) {
LOG_E(F1AP, "Failed to encode F1 DL RRC MESSAGE TRANSFER \n");
ASN_STRUCT_FREE(asn_DEF_F1AP_F1AP_PDU, pdu);
return -1;
}
/* Free F1AP PDU */
ASN_STRUCT_FREE(asn_DEF_F1AP_F1AP_PDU, pdu);
/* Send to DU */
LOG_D(F1AP, "CU send DL_RRC_MESSAGE_TRANSFER \n");
f1ap_itti_send_sctp_data_req(assoc_id, buffer, len);
return 0;
}