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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_du_rrc_message_transfer.c
+8 -77
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@@ -58,85 +58,16 @@
/* DL RRC Message Transfer */
int DU_handle_DL_RRC_MESSAGE_TRANSFER(instance_t instance, sctp_assoc_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu)
{
F1AP_DLRRCMessageTransfer_t *container;
F1AP_DLRRCMessageTransferIEs_t *ie;
int executeDuplication;
//uint64_t subscriberProfileIDforRFP;
//uint64_t rAT_FrequencySelectionPriority;
DevAssert(pdu != NULL);
container = &pdu->choice.initiatingMessage->value.choice.DLRRCMessageTransfer;
/* GNB_CU_UE_F1AP_ID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID, true);
uint32_t cu_ue_f1ap_id = ie->value.choice.GNB_CU_UE_F1AP_ID;
/* GNB_DU_UE_F1AP_ID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true);
uint32_t du_ue_f1ap_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
/* optional */
/* oldgNB_DU_UE_F1AP_ID */
uint32_t *old_gNB_DU_ue_id = NULL;
uint32_t old_gNB_DU_ue_id_stack = 0;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_oldgNB_DU_UE_F1AP_ID, false);
if (ie) {
/* strange: it is not named OLD_GNB_DU_UE... */
old_gNB_DU_ue_id_stack = ie->value.choice.GNB_DU_UE_F1AP_ID_1;
old_gNB_DU_ue_id = &old_gNB_DU_ue_id_stack;
f1ap_dl_rrc_message_t msg = {0};
if (!decode_dl_rrc_message_transfer(pdu, &msg)) {
LOG_E(F1AP, "cannot decode F1 DL RRC message Transfer\n");
free_dl_rrc_message_transfer(&msg);
return -1;
}
/* mandatory */
/* SRBID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_SRBID, true);
uint64_t srb_id = ie->value.choice.SRBID;
LOG_D(F1AP, "srb_id %lu \n", srb_id);
/* optional */
/* ExecuteDuplication */
if (0) {
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_ExecuteDuplication, true);
executeDuplication = ie->value.choice.ExecuteDuplication;
LOG_D(F1AP, "ExecuteDuplication %d \n", executeDuplication);
}
// issue in here
/* mandatory */
/* RRC Container */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_RRCContainer, true);
/* optional */
/* RAT_FrequencyPriorityInformation */
if (0) {
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_RAT_FrequencyPriorityInformation, true);
switch(ie->value.choice.RAT_FrequencyPriorityInformation.present) {
case F1AP_RAT_FrequencyPriorityInformation_PR_eNDC:
//subscriberProfileIDforRFP = ie->value.choice.RAT_FrequencyPriorityInformation.choice.subscriberProfileIDforRFP;
break;
case F1AP_RAT_FrequencyPriorityInformation_PR_nGRAN:
//rAT_FrequencySelectionPriority = ie->value.choice.RAT_FrequencyPriorityInformation.choice.rAT_FrequencySelectionPriority;
break;
default:
LOG_W(F1AP, "unhandled IE RAT_FrequencyPriorityInformation.present\n");
break;
}
}
f1ap_dl_rrc_message_t dl_rrc = {
.gNB_CU_ue_id = cu_ue_f1ap_id,
.gNB_DU_ue_id = du_ue_f1ap_id,
.old_gNB_DU_ue_id = old_gNB_DU_ue_id,
.rrc_container_length = ie->value.choice.RRCContainer.size,
.rrc_container = ie->value.choice.RRCContainer.buf,
.srb_id = srb_id
};
dl_rrc_message_transfer(&dl_rrc);
dl_rrc_message_transfer(&msg);
/* Free DL RRC Message Transfer */
free_dl_rrc_message_transfer(&msg);
return 0;
}