maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
ca9748eca7ea5dba36d761ca81ddc36179c1f6d0
openairinterface5g/openair2/F1AP/f1ap_cu_rrc_message_transfer.c
T

271 lines
11 KiB
C
Raw Blame History

/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (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.openairinterface.org/?page_id=698
*
* 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.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file f1ap_cu_rrc_message_transfer.c
* \brief f1ap rrc message transfer for CU
* \author EURECOM/NTUST
* \date 2018
* \version 0.1
* \company Eurecom
* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
* \note
* \warning
*/
#include "f1ap_common.h"
#include "f1ap_encoder.h"
#include "f1ap_decoder.h"
#include "f1ap_itti_messaging.h"
#include "f1ap_cu_rrc_message_transfer.h"
// undefine C_RNTI from
// openair1/PHY/LTE_TRANSPORT/transport_common.h which
// replaces in ie->value.choice.C_RNTI, causing
// a compile error
#undef C_RNTI
/*
Initial UL RRC Message Transfer
*/
int CU_handle_INITIAL_UL_RRC_MESSAGE_TRANSFER(instance_t instance,
uint32_t assoc_id,
uint32_t stream,
F1AP_F1AP_PDU_t *pdu) {
printf("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;
rnti_t rnti;
uint8_t *ccch_sdu;
sdu_size_t ccch_sdu_len;
int CC_id =0;
uint64_t du_ue_f1ap_id;
DevAssert(pdu != NULL);
if (stream != 0) {
LOG_E(F1AP, "[SCTP %d] Received F1 on stream != 0 (%d)\n",
assoc_id, stream);
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);
du_ue_f1ap_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
printf("du_ue_f1ap_id %lu \n", du_ue_f1ap_id);
/* NRCGI */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_NRCGI, true);
/* RNTI */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_C_RNTI, true);
BUFFER_TO_INT16(ie->value.choice.C_RNTI.buf, rnti);
/* RRC Container */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_InitialULRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_RRCContainer, true);
// create an ITTI message and copy SDU
message_p = itti_alloc_new_message (TASK_CU_F1, RRC_MAC_CCCH_DATA_IND);
memset (RRC_MAC_CCCH_DATA_IND (message_p).sdu, 0, CCCH_SDU_SIZE);
ccch_sdu_len = ie->value.choice.RRCContainer.size;
memcpy(RRC_MAC_CCCH_DATA_IND (message_p).sdu, ie->value.choice.RRCContainer.buf,
ccch_sdu_len);
printf ("RRCContainer(CCCH) :");
for (int i=0;i<ie->value.choice.RRCContainer.size;i++) printf("%2x ",RRC_MAC_CCCH_DATA_IND (message_p).sdu[i]);
RRC_MAC_CCCH_DATA_IND (message_p).frame = 0;
RRC_MAC_CCCH_DATA_IND (message_p).sub_frame = 0;
RRC_MAC_CCCH_DATA_IND (message_p).sdu_size = ccch_sdu_len;
RRC_MAC_CCCH_DATA_IND (message_p).enb_index = instance; // CU instance
RRC_MAC_CCCH_DATA_IND (message_p).rnti = rnti;
RRC_MAC_CCCH_DATA_IND (message_p).CC_id = CC_id;
printf("Sending ITTI message to instance %d, rnti %x\n",instance,rnti);
itti_send_msg_to_task (TASK_RRC_ENB, instance, message_p);
// OR creat the ctxt and srb_info struct required by rrc_eNB_decode_ccch
/*
PROTOCOL_CTXT_SET_BY_INSTANCE(&ctxt,
instance, // to fix
ENB_FLAG_YES,
rnti,
0, // frame
0); // slot
CC_id = RRC_MAC_CCCH_DATA_IND(msg_p).CC_id;
srb_info_p = &RC.rrc[instance]->carrier[CC_id].Srb0;
if (ccch_sdu_len >= RRC_BUFFER_SIZE_MAX) {
LOG_E(RRC, "CCCH message has size %d > %d\n",ccch_sdu_len,RRC_BUFFER_SIZE_MAX);
break;
}
memcpy(srb_info_p->Rx_buffer.Payload,
ccch_sdu,
ccch_sdu_len);
srb_info->Rx_buffer.payload_size = ccch_sdu_len;
rrc_eNB_decode_ccch(&ctxt, srb_info, CC_id);
*/
// if size > 0
// CU_send_DL_RRC_MESSAGE_TRANSFER(C.rrc[ctxt_pP->module_id]->carrier[CC_id].Srb0.Tx_buffer.Payload, RC.rrc[ctxt_pP->module_id]->carrier[CC_id].Srb0.Tx_buffer.payload_size)
return 0;
}
/*
DL RRC Message Transfer.
*/
//void CU_send_DL_RRC_MESSAGE_TRANSFER(F1AP_DLRRCMessageTransfer_t *DLRRCMessageTransfer) {
int CU_send_DL_RRC_MESSAGE_TRANSFER(instance_t instance) {
F1AP_F1AP_PDU_t pdu;
F1AP_DLRRCMessageTransfer_t *out;
F1AP_DLRRCMessageTransferIEs_t *ie;
uint8_t *buffer;
uint32_t len;
/* Create */
/* 0. Message Type */
memset(&pdu, 0, sizeof(pdu));
pdu.present = F1AP_F1AP_PDU_PR_initiatingMessage;
pdu.choice.initiatingMessage = (F1AP_InitiatingMessage_t *)calloc(1, sizeof(F1AP_InitiatingMessage_t));
pdu.choice.initiatingMessage->procedureCode = F1AP_ProcedureCode_id_DLRRCMessageTransfer;
pdu.choice.initiatingMessage->criticality = F1AP_Criticality_ignore;
pdu.choice.initiatingMessage->value.present = F1AP_InitiatingMessage__value_PR_DLRRCMessageTransfer;
out = &pdu.choice.initiatingMessage->value.choice.DLRRCMessageTransfer;
/* mandatory */
/* c1. GNB_CU_UE_F1AP_ID */
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_GNB_CU_UE_F1AP_ID;
ie->value.choice.GNB_CU_UE_F1AP_ID = 126L;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c2. GNB_DU_UE_F1AP_ID */
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
ie->value.choice.GNB_DU_UE_F1AP_ID = 651L;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* optional */
/* c3. oldgNB_DU_UE_F1AP_ID */
if (0) {
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_oldgNB_DU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
//ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_NOTHING;
//ie->value.choice. = 1;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
}
/* mandatory */
/* c4. SRBID */
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_SRBID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_SRBID;
ie->value.choice.SRBID = 2L;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* optional */
/* c5. ExecuteDuplication */
if (0) {
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_ExecuteDuplication;
ie->criticality = F1AP_Criticality_ignore;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_ExecuteDuplication;
ie->value.choice.ExecuteDuplication = F1AP_ExecuteDuplication_true;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
}
// issue in here
/* mandatory */
/* c6. RRCContainer */
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_RRCContainer;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_RRCContainer;
OCTET_STRING_fromBuf(&ie->value.choice.RRCContainer, "A", strlen("A"));
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* optional */
/* c7. RAT_FrequencyPriorityInformation */
if (0) {
ie = (F1AP_DLRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_DLRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_RAT_FrequencyPriorityInformation;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_DLRRCMessageTransferIEs__value_PR_RAT_FrequencyPriorityInformation;
ie->value.choice.RAT_FrequencyPriorityInformation.present = F1AP_RAT_FrequencyPriorityInformation_PR_subscriberProfileIDforRFP;
ie->value.choice.RAT_FrequencyPriorityInformation.choice.subscriberProfileIDforRFP = 123L;
//ie->value.choice.RAT_FrequencyPriorityInformation.present = F1AP_RAT_FrequencyPriorityInformation_PR_rAT_FrequencySelectionPriority;
//ie->value.choice.RAT_FrequencyPriorityInformation.choice.rAT_FrequencySelectionPriority = 123L;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
}
/* encode */
if (f1ap_encode_pdu(&pdu, &buffer, &len) < 0) {
printf("Failed to encode F1 setup request\n");
return -1;
}
printf("\n");
/* decode */
if (f1ap_decode_pdu(&pdu, buffer, len) > 0) {
printf("Failed to decode F1 setup request\n");
return -1;
}
return 0;
}
/*
UL RRC Message Transfer
*/
int CU_handle_UL_RRC_MESSAGE_TRANSFER(instance_t instance,
uint32_t assoc_id,
uint32_t stream,
F1AP_F1AP_PDU_t *pdu) {
AssertFatal(1==0,"Not implemented yet\n");
}
Reference in New Issue View Git Blame Copy Permalink