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openairinterface5g/openair2/F1AP/f1ap_du_rrc_message_transfer.c
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/*
* 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_du_rrc_message_transfer.c
* \brief f1ap rrc message transfer for DU
* \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_du_rrc_message_transfer.h"
#include "LTE_DL-CCCH-Message.h"
#include "LTE_DL-DCCH-Message.h"
#include "LTE_UL-DCCH-Message.h"
// for SRB1_logicalChannelConfig_defaultValue
#include "rrc_extern.h"
#include "common/ran_context.h"
#include "rrc_eNB_UE_context.h"
#include "asn1_msg.h"
#include "intertask_interface.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
extern f1ap_setup_req_t *f1ap_du_data;
extern RAN_CONTEXT_t RC;
extern f1ap_cudu_inst_t f1ap_du_inst[MAX_eNB];
/* DL RRC Message Transfer */
int DU_handle_DL_RRC_MESSAGE_TRANSFER(instance_t instance,
uint32_t assoc_id,
uint32_t stream,
F1AP_F1AP_PDU_t *pdu) {
LOG_D(F1AP, "DU_handle_DL_RRC_MESSAGE_TRANSFER \n");
F1AP_DLRRCMessageTransfer_t *container;
F1AP_DLRRCMessageTransferIEs_t *ie;
uint64_t cu_ue_f1ap_id;
uint64_t du_ue_f1ap_id;
uint64_t srb_id;
int executeDuplication;
sdu_size_t rrc_dl_sdu_len;
//uint64_t subscriberProfileIDforRFP;
//uint64_t rAT_FrequencySelectionPriority;
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.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);
cu_ue_f1ap_id = ie->value.choice.GNB_CU_UE_F1AP_ID;
LOG_D(F1AP, "cu_ue_f1ap_id %lu \n", 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);
du_ue_f1ap_id = ie->value.choice.GNB_DU_UE_F1AP_ID;
LOG_D(F1AP, "du_ue_f1ap_id %lu associated with UE RNTI %x \n",
du_ue_f1ap_id,
f1ap_get_rnti_by_du_id(&f1ap_du_inst[instance], du_ue_f1ap_id)); // this should be the one transmitted via initial ul rrc message transfer
if (f1ap_du_add_cu_ue_id(&f1ap_du_inst[instance],du_ue_f1ap_id, cu_ue_f1ap_id) < 0 ) {
LOG_E(F1AP, "Failed to find the F1AP UID \n");
//return -1;
}
/* optional */
/* oldgNB_DU_UE_F1AP_ID */
if (0) {
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_oldgNB_DU_UE_F1AP_ID, true);
}
/* mandatory */
/* SRBID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_DLRRCMessageTransferIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_SRBID, true);
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);
// BK: need check
// 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);
rrc_dl_sdu_len = ie->value.choice.RRCContainer.size;
// memcpy(RRC_MAC_CCCH_DATA_IND (message_p).sdu, ie->value.choice.RRCContainer.buf,
// ccch_sdu_len);
//LOG_I(F1AP, "%s() RRCContainer size %lu: ", __func__, ie->value.choice.RRCContainer.size);
//for (int i = 0;i < ie->value.choice.RRCContainer.size; i++)
// printf("%02x ", ie->value.choice.RRCContainer.buf[i]);
//printf("\n");
/* 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;
}
}
// decode RRC Container and act on the message type
AssertFatal(srb_id<3,"illegal srb_id\n");
protocol_ctxt_t ctxt;
ctxt.rnti = f1ap_get_rnti_by_du_id(&f1ap_du_inst[instance], du_ue_f1ap_id);
ctxt.module_id = instance;
ctxt.instance = instance;
ctxt.enb_flag = 1;
struct rrc_eNB_ue_context_s* ue_context_p = rrc_eNB_get_ue_context(
RC.rrc[ctxt.module_id],
ctxt.rnti);
if (srb_id == 0) {
LTE_DL_CCCH_Message_t* dl_ccch_msg=NULL;
asn_dec_rval_t dec_rval;
dec_rval = uper_decode(NULL,
&asn_DEF_LTE_DL_CCCH_Message,
(void**)&dl_ccch_msg,
ie->value.choice.RRCContainer.buf,
rrc_dl_sdu_len,0,0);
AssertFatal(dec_rval.code == RC_OK, "could not decode F1AP message\n");
switch (dl_ccch_msg->message.choice.c1.present) {
case LTE_DL_CCCH_MessageType__c1_PR_NOTHING:
LOG_I(F1AP, "Received PR_NOTHING on DL-CCCH-Message\n");
break;
case LTE_DL_CCCH_MessageType__c1_PR_rrcConnectionReestablishment:
LOG_I(F1AP,
"Logical Channel DL-CCCH (SRB0), Received RRCConnectionReestablishment\n");
break;
case LTE_DL_CCCH_MessageType__c1_PR_rrcConnectionReestablishmentReject:
LOG_I(F1AP,
"Logical Channel DL-CCCH (SRB0), Received RRCConnectionReestablishmentReject\n");
break;
case LTE_DL_CCCH_MessageType__c1_PR_rrcConnectionReject:
LOG_I(F1AP,
"Logical Channel DL-CCCH (SRB0), Received RRCConnectionReject \n");
break;
case LTE_DL_CCCH_MessageType__c1_PR_rrcConnectionSetup:
{
LOG_I(F1AP,
"Logical Channel DL-CCCH (SRB0), Received RRCConnectionSetup DU_ID %lx/RNTI %x\n",
du_ue_f1ap_id,
f1ap_get_rnti_by_du_id(&f1ap_du_inst[instance], du_ue_f1ap_id));
// Get configuration
LTE_RRCConnectionSetup_t* rrcConnectionSetup = &dl_ccch_msg->message.choice.c1.choice.rrcConnectionSetup;
AssertFatal(rrcConnectionSetup!=NULL,"rrcConnectionSetup is null\n");
LTE_RadioResourceConfigDedicated_t* radioResourceConfigDedicated = &rrcConnectionSetup->criticalExtensions.choice.c1.choice.rrcConnectionSetup_r8.radioResourceConfigDedicated;
// get SRB logical channel information
LTE_SRB_ToAddModList_t *SRB_configList;
LTE_SRB_ToAddMod_t *SRB1_config;
LTE_LogicalChannelConfig_t *SRB1_logicalChannelConfig = NULL;
SRB_configList = radioResourceConfigDedicated->srb_ToAddModList;
AssertFatal(SRB_configList!=NULL,"SRB_configList is null\n");
for (int cnt = 0; cnt < (SRB_configList)->list.count; cnt++) {
if ((SRB_configList)->list.array[cnt]->srb_Identity == 1) {
SRB1_config = (SRB_configList)->list.array[cnt];
if (SRB1_config->logicalChannelConfig) {
if (SRB1_config->logicalChannelConfig->present ==
LTE_SRB_ToAddMod__logicalChannelConfig_PR_explicitValue) {
SRB1_logicalChannelConfig = &SRB1_config->logicalChannelConfig->choice.explicitValue;
} else {
SRB1_logicalChannelConfig = &SRB1_logicalChannelConfig_defaultValue;
}
} else {
SRB1_logicalChannelConfig = &SRB1_logicalChannelConfig_defaultValue;
}
}
} // for
rrc_rlc_config_asn1_req(&ctxt,
SRB_configList,
(LTE_DRB_ToAddModList_t*) NULL,
(LTE_DRB_ToReleaseList_t*) NULL
, (LTE_PMCH_InfoList_r9_t *) NULL,
0,0
);
// This should be somewhere in the f1ap_cudu_ue_inst_t
/*int macrlc_instance = 0;
rnti_t rnti = f1ap_get_rnti_by_du_id(&f1ap_du_inst[0], du_ue_f1ap_id);
struct rrc_eNB_ue_context_s *ue_context_p = rrc_eNB_get_ue_context(RC.rrc[macrlc_instance],rnti);
*/
eNB_RRC_UE_t *ue_p = &ue_context_p->ue_context;
AssertFatal(ue_p->Srb0.Active == 1,"SRB0 is not active\n");
memcpy((void*)ue_p->Srb0.Tx_buffer.Payload,
(void*)ie->value.choice.RRCContainer.buf,
rrc_dl_sdu_len); // ie->value.choice.RRCContainer.size
ue_p->Srb0.Tx_buffer.payload_size = rrc_dl_sdu_len;
LTE_MAC_MainConfig_t *mac_MainConfig = NULL;
if (radioResourceConfigDedicated->mac_MainConfig)
mac_MainConfig = &radioResourceConfigDedicated->mac_MainConfig->choice.explicitValue;
rrc_mac_config_req_eNB(
ctxt.module_id,
0, //primaryCC_id,
0,0,0,0,0,0,
ctxt.rnti,
(LTE_BCCH_BCH_Message_t *) NULL,
(LTE_RadioResourceConfigCommonSIB_t *) NULL,
(LTE_RadioResourceConfigCommonSIB_t *) NULL,
radioResourceConfigDedicated->physicalConfigDedicated,
(LTE_SCellToAddMod_r10_t *)NULL,
//(struct PhysicalConfigDedicatedSCell_r10 *)NULL,
(LTE_MeasObjectToAddMod_t **) NULL,
mac_MainConfig,
1,
SRB1_logicalChannelConfig,
NULL, // measGapConfig,
(LTE_TDD_Config_t *) NULL,
NULL,
(LTE_SchedulingInfoList_t *) NULL,
0, NULL, NULL, (LTE_MBSFN_SubframeConfigList_t *) NULL
, 0, (LTE_MBSFN_AreaInfoList_r9_t *) NULL, (LTE_PMCH_InfoList_r9_t *) NULL,
(LTE_SystemInformationBlockType1_v1310_IEs_t *)NULL
,
0,
(LTE_BCCH_DL_SCH_Message_MBMS_t *) NULL,
(LTE_SchedulingInfo_MBMS_r14_t *) NULL,
(struct LTE_NonMBSFN_SubframeConfig_r14 *) NULL,
(LTE_SystemInformationBlockType1_MBMS_r14_t *) NULL,
(LTE_MBSFN_AreaInfoList_r9_t *) NULL,
(LTE_MBSFNAreaConfiguration_r9_t*) NULL
);
break;
} // case
default:
AssertFatal(1==0,
"Unknown message\n");
break;
}// switch case
return(0);
} else if (srb_id == 1) {
LTE_DL_DCCH_Message_t* dl_dcch_msg=NULL;
asn_dec_rval_t dec_rval;
dec_rval = uper_decode(NULL,
&asn_DEF_LTE_DL_DCCH_Message,
(void**)&dl_dcch_msg,
&ie->value.choice.RRCContainer.buf[1], // buf[0] includes the pdcp header
rrc_dl_sdu_len,0,0);
if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0))
LOG_E(F1AP," Failed to decode DL-DCCH (%zu bytes)\n",dec_rval.consumed);
else
LOG_D(F1AP, "Received message: present %d and c1 present %d\n",
dl_dcch_msg->message.present, dl_dcch_msg->message.choice.c1.present);
if (dl_dcch_msg->message.present == LTE_DL_DCCH_MessageType_PR_c1) {
switch (dl_dcch_msg->message.choice.c1.present) {
case LTE_DL_DCCH_MessageType__c1_PR_NOTHING:
LOG_I(F1AP, "Received PR_NOTHING on DL-DCCH-Message\n");
return 0;
case LTE_DL_DCCH_MessageType__c1_PR_dlInformationTransfer:
LOG_I(F1AP,"Received NAS DL Information Transfer\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_csfbParametersResponseCDMA2000:
LOG_I(F1AP,"Received NAS sfbParametersResponseCDMA2000\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_handoverFromEUTRAPreparationRequest:
LOG_I(F1AP,"Received NAS andoverFromEUTRAPreparationRequest\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_mobilityFromEUTRACommand:
LOG_I(F1AP,"Received NAS mobilityFromEUTRACommand\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_rrcConnectionReconfiguration:
// handle RRCConnectionReconfiguration
LOG_I(F1AP,
"Logical Channel DL-DCCH (SRB1), Received RRCConnectionReconfiguration DU_ID %lx/RNTI %x\n",
du_ue_f1ap_id,
f1ap_get_rnti_by_du_id(&f1ap_du_inst[instance], du_ue_f1ap_id));
LTE_RRCConnectionReconfiguration_t* rrcConnectionReconfiguration = &dl_dcch_msg->message.choice.c1.choice.rrcConnectionReconfiguration;
if (rrcConnectionReconfiguration->criticalExtensions.present == LTE_RRCConnectionReconfiguration__criticalExtensions_PR_c1) {
if (rrcConnectionReconfiguration->criticalExtensions.choice.c1.present ==
LTE_RRCConnectionReconfiguration__criticalExtensions__c1_PR_rrcConnectionReconfiguration_r8) {
LTE_RRCConnectionReconfiguration_r8_IEs_t* rrcConnectionReconfiguration_r8 =
&rrcConnectionReconfiguration->criticalExtensions.choice.c1.choice.rrcConnectionReconfiguration_r8;
if (rrcConnectionReconfiguration_r8->mobilityControlInfo) {
LOG_I(F1AP, "Mobility Control Information is present\n");
AssertFatal(1==0,"Can't handle this yet in DU\n");
}
if (rrcConnectionReconfiguration_r8->measConfig != NULL) {
LOG_I(F1AP, "Measurement Configuration is present\n");
}
if (rrcConnectionReconfiguration_r8->radioResourceConfigDedicated) {
LOG_I(F1AP, "Radio Resource Configuration is present\n");
uint8_t DRB2LCHAN[8];
long drb_id;
int i;
LTE_DRB_ToAddModList_t *DRB_configList = rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->drb_ToAddModList;
LTE_SRB_ToAddModList_t *SRB_configList = rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->srb_ToAddModList;
LTE_DRB_ToReleaseList_t *DRB_ReleaseList = rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->drb_ToReleaseList;
LTE_MAC_MainConfig_t *mac_MainConfig = NULL;
for (i = 0; i< 8; i++){
DRB2LCHAN[i] = 0;
}
if (rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->mac_MainConfig) {
LOG_D(F1AP, "MAC Main Configuration is present\n");
mac_MainConfig = &rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->mac_MainConfig->choice.explicitValue;
/* CDRX Configuration */
if (mac_MainConfig->drx_Config == NULL) {
LOG_W(F1AP, "drx_Configuration parameter is NULL, cannot configure local UE parameters or CDRX is deactivated\n");
} else {
MessageDef *message_p = NULL;
/* Send DRX configuration to MAC task to configure timers of local UE context */
message_p = itti_alloc_new_message(TASK_DU_F1, RRC_MAC_DRX_CONFIG_REQ);
RRC_MAC_DRX_CONFIG_REQ(message_p).rnti = ctxt.rnti;
RRC_MAC_DRX_CONFIG_REQ(message_p).drx_Configuration = mac_MainConfig->drx_Config;
itti_send_msg_to_task(TASK_MAC_ENB, ctxt.module_id, message_p);
LOG_D(F1AP, "DRX configured in MAC Main Configuration for RRC Connection Reconfiguration\n");
}
/* End of CDRX configuration */
}
LTE_MeasGapConfig_t *measGapConfig = NULL;
struct LTE_PhysicalConfigDedicated* physicalConfigDedicated = rrcConnectionReconfiguration_r8->radioResourceConfigDedicated->physicalConfigDedicated;
rrc_rlc_config_asn1_req(
&ctxt,
SRB_configList, // NULL, //LG-RK 14/05/2014 SRB_configList,
DRB_configList,
DRB_ReleaseList, (LTE_PMCH_InfoList_r9_t *) NULL, 0, 0
);
if (SRB_configList != NULL) {
for (i = 0; (i < SRB_configList->list.count) && (i < 3); i++) {
if (SRB_configList->list.array[i]->srb_Identity == 1 ){
ue_context_p->ue_context.Srb1.Active=1;
}
else if (SRB_configList->list.array[i]->srb_Identity == 2 ) {
ue_context_p->ue_context.Srb2.Active=1;
ue_context_p->ue_context.Srb2.Srb_info.Srb_id=2;
LOG_I(F1AP, "[DU %d] SRB2 is now active\n",ctxt.module_id);
} else {
LOG_W(F1AP, "[DU %d] invalide SRB identity %ld\n",ctxt.module_id,
SRB_configList->list.array[i]->srb_Identity);
}
}
}
if (DRB_configList != NULL) {
for (i = 0; i < DRB_configList->list.count; i++) { // num max DRB (11-3-8)
if (DRB_configList->list.array[i]) {
drb_id = (int)DRB_configList->list.array[i]->drb_Identity;
LOG_I(F1AP,
"[DU %d] Logical Channel UL-DCCH, Received RRCConnectionReconfiguration for UE rnti %x, reconfiguring DRB %d/LCID %d\n",
ctxt.module_id,
ctxt.rnti,
(int)DRB_configList->list.array[i]->drb_Identity,
(int)*DRB_configList->list.array[i]->logicalChannelIdentity);
if (ue_context_p->ue_context.DRB_active[drb_id] == 0) {
ue_context_p->ue_context.DRB_active[drb_id] = 1;
if (DRB_configList->list.array[i]->logicalChannelIdentity) {
DRB2LCHAN[i] = (uint8_t) * DRB_configList->list.array[i]->logicalChannelIdentity;
}
rrc_mac_config_req_eNB(
ctxt.module_id,
0,0,0,0,0,0,
0,
ue_context_p->ue_context.rnti,
(LTE_BCCH_BCH_Message_t *) NULL,
(LTE_RadioResourceConfigCommonSIB_t *) NULL,
(LTE_RadioResourceConfigCommonSIB_t *) NULL,
physicalConfigDedicated,
(LTE_SCellToAddMod_r10_t *)NULL,
//(struct PhysicalConfigDedicatedSCell_r10 *)NULL,
(LTE_MeasObjectToAddMod_t **) NULL,
mac_MainConfig,
DRB2LCHAN[i],
DRB_configList->list.array[i]->logicalChannelConfig,
measGapConfig,
(LTE_TDD_Config_t *) NULL,
NULL,
(LTE_SchedulingInfoList_t *) NULL,
0, NULL, NULL, (LTE_MBSFN_SubframeConfigList_t *) NULL
, 0, (LTE_MBSFN_AreaInfoList_r9_t *) NULL, (LTE_PMCH_InfoList_r9_t *) NULL,
(LTE_SystemInformationBlockType1_v1310_IEs_t *)NULL,
0,
(LTE_BCCH_DL_SCH_Message_MBMS_t *) NULL,
(LTE_SchedulingInfo_MBMS_r14_t *) NULL,
(struct LTE_NonMBSFN_SubframeConfig_r14 *) NULL,
(LTE_SystemInformationBlockType1_MBMS_r14_t *) NULL,
(LTE_MBSFN_AreaInfoList_r9_t *) NULL,
(LTE_MBSFNAreaConfiguration_r9_t*) NULL
);
}
} else { // remove LCHAN from MAC/PHY
AssertFatal(1==0,"Can't handle this yet in DU\n");
}
}
}
}
}
}
break;
case LTE_DL_DCCH_MessageType__c1_PR_rrcConnectionRelease:
// handle RRCConnectionRelease
LOG_I(F1AP, "Received RRCConnectionRelease\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_securityModeCommand:
LOG_I(F1AP, "Received securityModeCommand\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_ueCapabilityEnquiry:
LOG_I(F1AP, "Received ueCapabilityEnquiry\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_counterCheck:
case LTE_DL_DCCH_MessageType__c1_PR_loggedMeasurementConfiguration_r10:
case LTE_DL_DCCH_MessageType__c1_PR_rnReconfiguration_r10:
case LTE_DL_DCCH_MessageType__c1_PR_spare1:
case LTE_DL_DCCH_MessageType__c1_PR_spare2:
case LTE_DL_DCCH_MessageType__c1_PR_spare3:
break;
case LTE_DL_DCCH_MessageType__c1_PR_ueInformationRequest_r9:
LOG_I(F1AP, "Received ueInformationRequest_r9\n");
break;
case LTE_DL_DCCH_MessageType__c1_PR_rrcConnectionResume_r13:
LOG_I(F1AP, "Received rrcConnectionResume_r13\n");
}
}
}
else if (srb_id == 2) {
}
LOG_I(F1AP, "Received DL RRC Transfer on srb_id %ld\n", srb_id);
rlc_op_status_t rlc_status;
boolean_t ret = TRUE;
mem_block_t *pdcp_pdu_p = NULL;
pdcp_pdu_p = get_free_mem_block(rrc_dl_sdu_len, __func__);
//LOG_I(F1AP, "PRRCContainer size %lu:", ie->value.choice.RRCContainer.size);
//for (int i = 0; i < ie->value.choice.RRCContainer.size; i++)
// printf("%02x ", ie->value.choice.RRCContainer.buf[i]);
//printf (", PDCP PDU size %d:", rrc_dl_sdu_len);
//for (int i=0;i<rrc_dl_sdu_len;i++) printf("%2x ",pdcp_pdu_p->data[i]);
//printf("\n");
if (pdcp_pdu_p != NULL) {
memset(pdcp_pdu_p->data, 0, rrc_dl_sdu_len);
memcpy(&pdcp_pdu_p->data[0], ie->value.choice.RRCContainer.buf, rrc_dl_sdu_len);
rlc_status = rlc_data_req(&ctxt
, 1
, MBMS_FLAG_NO
, srb_id
, 0
, 0
, rrc_dl_sdu_len
, pdcp_pdu_p
,NULL
,NULL
);
switch (rlc_status) {
case RLC_OP_STATUS_OK:
//LOG_I(F1AP, "Data sending request over RLC succeeded!\n");
ret=TRUE;
break;
case RLC_OP_STATUS_BAD_PARAMETER:
LOG_W(F1AP, "Data sending request over RLC failed with 'Bad Parameter' reason!\n");
ret= FALSE;
break;
case RLC_OP_STATUS_INTERNAL_ERROR:
LOG_W(F1AP, "Data sending request over RLC failed with 'Internal Error' reason!\n");
ret= FALSE;
break;
case RLC_OP_STATUS_OUT_OF_RESSOURCES:
LOG_W(F1AP, "Data sending request over RLC failed with 'Out of Resources' reason!\n");
ret= FALSE;
break;
default:
LOG_W(F1AP, "RLC returned an unknown status code after PDCP placed the order to send some data (Status Code:%d)\n", rlc_status);
ret= FALSE;
break;
} // switch case
return ret;
} // if pdcp_pdu_p
return 0;
}
int DU_send_UL_RRC_MESSAGE_TRANSFER(instance_t instance,
const f1ap_ul_rrc_message_t *msg) {
const rnti_t rnti = msg->rnti;
F1AP_F1AP_PDU_t pdu;
F1AP_ULRRCMessageTransfer_t *out;
F1AP_ULRRCMessageTransferIEs_t *ie;
uint8_t *buffer = NULL;
uint32_t len;
LOG_I(F1AP, "[DU %d] %s: size %d UE RNTI %x in SRB %d\n",
instance, __func__, msg->rrc_container_length, rnti, msg->srb_id);
//LOG_I(F1AP, "%s() RRCContainer size %d: ", __func__, msg->rrc_container_length);
//for (int i = 0;i < msg->rrc_container_length; i++)
// printf("%02x ", msg->rrc_container[i]);
//printf("\n");
/* 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_ULRRCMessageTransfer;
pdu.choice.initiatingMessage->criticality = F1AP_Criticality_ignore;
pdu.choice.initiatingMessage->value.present = F1AP_InitiatingMessage__value_PR_ULRRCMessageTransfer;
out = &pdu.choice.initiatingMessage->value.choice.ULRRCMessageTransfer;
/* mandatory */
/* c1. GNB_CU_UE_F1AP_ID */
ie = (F1AP_ULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_ULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_ULRRCMessageTransferIEs__value_PR_GNB_CU_UE_F1AP_ID;
ie->value.choice.GNB_CU_UE_F1AP_ID = f1ap_get_cu_ue_f1ap_id(&f1ap_du_inst[instance], rnti);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c2. GNB_DU_UE_F1AP_ID */
ie = (F1AP_ULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_ULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_ULRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
ie->value.choice.GNB_DU_UE_F1AP_ID = f1ap_get_du_ue_f1ap_id(&f1ap_du_inst[instance], rnti);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c3. SRBID */
ie = (F1AP_ULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_ULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_SRBID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_ULRRCMessageTransferIEs__value_PR_SRBID;
ie->value.choice.SRBID = msg->srb_id;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
// issue in here
/* mandatory */
/* c4. RRCContainer */
ie = (F1AP_ULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_ULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_RRCContainer;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_ULRRCMessageTransferIEs__value_PR_RRCContainer;
OCTET_STRING_fromBuf(&ie->value.choice.RRCContainer,
(const char *) msg->rrc_container,
msg->rrc_container_length);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
if (msg->srb_id == 1 || msg->srb_id == 2) {
struct rrc_eNB_ue_context_s* ue_context_p = rrc_eNB_get_ue_context(RC.rrc[instance], rnti);
LTE_UL_DCCH_Message_t* ul_dcch_msg=NULL;
asn_dec_rval_t dec_rval;
dec_rval = uper_decode(NULL,
&asn_DEF_LTE_UL_DCCH_Message,
(void**)&ul_dcch_msg,
&ie->value.choice.RRCContainer.buf[1], // buf[0] includes the pdcp header
msg->rrc_container_length, 0, 0);
if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0))
LOG_E(F1AP, " Failed to decode UL-DCCH (%zu bytes)\n",dec_rval.consumed);
else
LOG_I(F1AP, "Received message: present %d and c1 present %d\n",
ul_dcch_msg->message.present, ul_dcch_msg->message.choice.c1.present);
if (ul_dcch_msg->message.present == LTE_UL_DCCH_MessageType_PR_c1) {
switch (ul_dcch_msg->message.choice.c1.present) {
case LTE_UL_DCCH_MessageType__c1_PR_NOTHING: /* No components present */
break;
case LTE_UL_DCCH_MessageType__c1_PR_csfbParametersRequestCDMA2000:
break;
case LTE_UL_DCCH_MessageType__c1_PR_measurementReport:
break;
case LTE_UL_DCCH_MessageType__c1_PR_rrcConnectionReconfigurationComplete:
LOG_I(F1AP, "[MSG] RRC UL rrcConnectionReconfigurationComplete\n");
/* CDRX: activated when RRC Connection Reconfiguration Complete is received */
int UE_id_mac = find_UE_id(instance, rnti);
if (UE_id_mac == -1) {
LOG_E(F1AP, "Can't find UE_id(MAC) of UE rnti %x\n", rnti);
break;
}
UE_sched_ctrl_t *UE_scheduling_control = &(RC.mac[instance]->UE_info.UE_sched_ctrl[UE_id_mac]);
if (UE_scheduling_control->cdrx_waiting_ack == TRUE) {
UE_scheduling_control->cdrx_waiting_ack = FALSE;
UE_scheduling_control->cdrx_configured = TRUE; // Set to TRUE when RRC Connection Reconfiguration Complete is received
LOG_I(F1AP, "CDRX configuration activated after RRC Connection Reconfiguration Complete reception\n");
}
/* End of CDRX processing */
break;
case LTE_UL_DCCH_MessageType__c1_PR_rrcConnectionReestablishmentComplete:
break;
case LTE_UL_DCCH_MessageType__c1_PR_rrcConnectionSetupComplete:
LOG_I(F1AP, "[MSG] RRC UL rrcConnectionSetupComplete \n");
if(!ue_context_p){
LOG_E(F1AP, "Did not find the UE context associated with UE RNTOI %x, ue_context_p is NULL\n", rnti);
} else {
LOG_I(F1AP, "Processing RRCConnectionSetupComplete UE %x\n", rnti);
ue_context_p->ue_context.Status = RRC_CONNECTED;
}
break;
case LTE_UL_DCCH_MessageType__c1_PR_securityModeComplete:
LOG_I(F1AP, "[MSG] RRC securityModeComplete \n");
break;
case LTE_UL_DCCH_MessageType__c1_PR_securityModeFailure:
break;
case LTE_UL_DCCH_MessageType__c1_PR_ueCapabilityInformation:
LOG_I(F1AP, "[MSG] RRC ueCapabilityInformation \n");
break;
case LTE_UL_DCCH_MessageType__c1_PR_ulHandoverPreparationTransfer:
break;
case LTE_UL_DCCH_MessageType__c1_PR_ulInformationTransfer:
LOG_I(F1AP,"[MSG] RRC UL Information Transfer \n");
break;
case LTE_UL_DCCH_MessageType__c1_PR_counterCheckResponse:
break;
case LTE_UL_DCCH_MessageType__c1_PR_ueInformationResponse_r9:
break;
case LTE_UL_DCCH_MessageType__c1_PR_proximityIndication_r9:
break;
case LTE_UL_DCCH_MessageType__c1_PR_rnReconfigurationComplete_r10:
break;
case LTE_UL_DCCH_MessageType__c1_PR_mbmsCountingResponse_r10:
break;
case LTE_UL_DCCH_MessageType__c1_PR_interFreqRSTDMeasurementIndication_r10:
break;
}
}
}
/* encode */
if (f1ap_encode_pdu(&pdu, &buffer, &len) < 0) {
LOG_E(F1AP, "Failed to encode F1 setup request\n");
return -1;
}
du_f1ap_itti_send_sctp_data_req(instance, f1ap_du_data->assoc_id, buffer, len, f1ap_du_data->default_sctp_stream_id);
return 0;
}
/* UL RRC Message Transfer */
int DU_send_INITIAL_UL_RRC_MESSAGE_TRANSFER(module_id_t module_idP,
int CC_idP,
int UE_id,
rnti_t rntiP,
const uint8_t *sduP,
sdu_size_t sdu_lenP) {
F1AP_F1AP_PDU_t pdu;
F1AP_InitialULRRCMessageTransfer_t *out;
F1AP_InitialULRRCMessageTransferIEs_t *ie;
uint8_t *buffer;
uint32_t len;
int f1ap_uid = f1ap_add_ue (&f1ap_du_inst[module_idP], module_idP, CC_idP,UE_id, rntiP);
if (f1ap_uid < 0 ) {
LOG_E(F1AP, "Failed to add UE \n");
return -1;
}
/* 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_InitialULRRCMessageTransfer;
pdu.choice.initiatingMessage->criticality = F1AP_Criticality_ignore;
pdu.choice.initiatingMessage->value.present = F1AP_InitiatingMessage__value_PR_InitialULRRCMessageTransfer;
out = &pdu.choice.initiatingMessage->value.choice.InitialULRRCMessageTransfer;
/* mandatory */
/* c1. GNB_DU_UE_F1AP_ID */
ie = (F1AP_InitialULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_InitialULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_GNB_DU_UE_F1AP_ID;
ie->value.choice.GNB_DU_UE_F1AP_ID = f1ap_du_inst[module_idP].f1ap_ue[f1ap_uid].du_ue_f1ap_id;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c2. NRCGI */
ie = (F1AP_InitialULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_InitialULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_NRCGI;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_NRCGI;
F1AP_NRCGI_t nRCGI;
memset(&nRCGI, 0, sizeof(F1AP_NRCGI_t));
MCC_MNC_TO_PLMNID(f1ap_du_data->mcc[0], f1ap_du_data->mnc[0], f1ap_du_data->mnc_digit_length[0],
&nRCGI.pLMN_Identity);
NR_CELL_ID_TO_BIT_STRING(f1ap_du_data->nr_cellid[0], &nRCGI.nRCellIdentity);
ie->value.choice.NRCGI = nRCGI;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c3. C_RNTI */ // 16
ie = (F1AP_InitialULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_InitialULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_C_RNTI;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_C_RNTI;
ie->value.choice.C_RNTI=rntiP;
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* mandatory */
/* c4. RRCContainer */
ie = (F1AP_InitialULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_InitialULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_RRCContainer;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_RRCContainer;
OCTET_STRING_fromBuf(&ie->value.choice.RRCContainer, (const char *)sduP, sdu_lenP);
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
/* optional */
/* c5. DUtoCURRCContainer */
if (0) {
ie = (F1AP_InitialULRRCMessageTransferIEs_t *)calloc(1, sizeof(F1AP_InitialULRRCMessageTransferIEs_t));
ie->id = F1AP_ProtocolIE_ID_id_DUtoCURRCContainer;
ie->criticality = F1AP_Criticality_reject;
ie->value.present = F1AP_InitialULRRCMessageTransferIEs__value_PR_DUtoCURRCContainer;
OCTET_STRING_fromBuf(&ie->value.choice.DUtoCURRCContainer, "dummy_val",
strlen("dummy_val"));
ASN_SEQUENCE_ADD(&out->protocolIEs.list, ie);
}
/* encode */
if (f1ap_encode_pdu(&pdu, &buffer, &len) < 0) {
LOG_E(F1AP, "Failed to encode F1 setup request\n");
return -1;
}
struct rrc_eNB_ue_context_s* ue_context_p = rrc_eNB_allocate_new_UE_context(RC.rrc[module_idP]);
ue_context_p->ue_id_rnti = rntiP;
ue_context_p->ue_context.rnti = rntiP;
ue_context_p->ue_context.random_ue_identity = rntiP;
ue_context_p->ue_context.Srb0.Active = 1;
RB_INSERT(rrc_ue_tree_s, &RC.rrc[module_idP]->rrc_ue_head, ue_context_p);
du_f1ap_itti_send_sctp_data_req(module_idP, f1ap_du_data->assoc_id, buffer, len, f1ap_du_data->default_sctp_stream_id);
return 0;
}
void init_f1ap_du_ue_inst (void) {
memset(f1ap_du_inst, 0, sizeof(f1ap_du_inst));
}
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