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Use F1AP lib Init UL RRC Msg in stack

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Co-authored-by: Guido Casati <hello@guidocasati.com>
This commit is contained in:
Robert Schmidt
2024-09-27 11:22:03 +02:00
committed by Guido Casati
co-authored by Guido Casati
parent ca6eb7bd10
commit 57ecb11d53
8 changed files with 38 additions and 147 deletions
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openair2/F1AP/f1ap_cu_rrc_message_transfer.c
+7 -49
View File
@@ -39,67 +39,25 @@
#include "openair3/UTILS/conversions.h"
#include "LAYER2/nr_pdcp/nr_pdcp_oai_api.h"
#include "f1ap_rrc_message_transfer.h"
/*
Initial UL RRC Message Transfer
*/
int CU_handle_INITIAL_UL_RRC_MESSAGE_TRANSFER(instance_t instance, sctp_assoc_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu)
{
LOG_D(F1AP, "CU_handle_INITIAL_UL_RRC_MESSAGE_TRANSFER\n");
// decode the F1 message
// get the rrc message from the contauiner
// call func rrc_eNB_decode_ccch: <-- needs some update here
MessageDef *message_p;
F1AP_InitialULRRCMessageTransfer_t *container;
F1AP_InitialULRRCMessageTransferIEs_t *ie;
DevAssert(pdu != NULL);
if (stream != 0) {
LOG_E(F1AP, "[SCTP %d] Received F1 on stream != 0 (%d)\n",
assoc_id, stream);
f1ap_initial_ul_rrc_message_t msg;
if (!decode_initial_ul_rrc_message_transfer(pdu, &msg)) {
LOG_E(F1AP, "cannot decode F1 initial UL RRC message Transfer\n");
return -1;
}
container = &pdu->choice.initiatingMessage->value.choice.InitialULRRCMessageTransfer;
/* GNB_DU_UE_F1AP_ID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true);
uint32_t du_ue_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
/* NRCGI
* Fixme: process NRCGI
*/
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_NRCGI, true);
uint64_t nr_cellid;
BIT_STRING_TO_NR_CELL_IDENTITY(&ie->value.choice.NRCGI.nRCellIdentity,nr_cellid);
/* RNTI */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_C_RNTI, true);
rnti_t rnti = ie->value.choice.C_RNTI;
F1AP_InitialULRRCMessageTransferIEs_t *rrccont;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, rrccont, container,
F1AP_ProtocolIE_ID_id_RRCContainer, true);
AssertFatal(rrccont!=NULL,"RRCContainer is missing\n");
F1AP_InitialULRRCMessageTransferIEs_t *du2cu;
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, du2cu, container,
F1AP_ProtocolIE_ID_id_DUtoCURRCContainer, false);
// create an ITTI message and copy SDU
message_p = itti_alloc_new_message(TASK_CU_F1, 0, F1AP_INITIAL_UL_RRC_MESSAGE);
MessageDef *message_p = itti_alloc_new_message(TASK_CU_F1, 0, F1AP_INITIAL_UL_RRC_MESSAGE);
message_p->ittiMsgHeader.originInstance = assoc_id;
f1ap_initial_ul_rrc_message_t *ul_rrc = &F1AP_INITIAL_UL_RRC_MESSAGE(message_p);
ul_rrc->gNB_DU_ue_id = du_ue_id;
ul_rrc->nr_cellid = nr_cellid; // CU instance
ul_rrc->crnti = rnti;
ul_rrc->rrc_container_length = rrccont->value.choice.RRCContainer.size;
ul_rrc->rrc_container = malloc(ul_rrc->rrc_container_length);
memcpy(ul_rrc->rrc_container, rrccont->value.choice.RRCContainer.buf, ul_rrc->rrc_container_length);
AssertFatal(du2cu != NULL, "no masterCellGroup in initial UL RRC message\n");
ul_rrc->du2cu_rrc_container_length = du2cu->value.choice.DUtoCURRCContainer.size;
ul_rrc->du2cu_rrc_container = malloc(ul_rrc->du2cu_rrc_container_length);
memcpy(ul_rrc->du2cu_rrc_container, du2cu->value.choice.DUtoCURRCContainer.buf, ul_rrc->du2cu_rrc_container_length);
*ul_rrc = msg; /* "move" message into ITTI, RRC thread will free it */
itti_send_msg_to_task(TASK_RRC_GNB, instance, message_p);
return 0;