#include "RRCReconfiguration-v1530-IEs.h"
#include "CNUEPagingIdentity.h"
#include "PagingCell-Item.h"
+#include "UL-DCCH-Message.h"
#include "cu_stub_sctp.h"
#include "cu_stub_egtp.h"
return ROK;
} /* SendF1APMsg */
-/*******************************************************************
- *
- * @brief Builds NRCell ID
- *
- * @details
- *
- * Function : BuildNrCellId
- *
- * Functionality: Building the NR Cell ID
- *
- * @params[in] BIT_STRING_t *nrcell
- * @return ROK - success
- * RFAILED - failure
- *
- * ****************************************************************/
-
-S16 BuildNrCellId(BIT_STRING_t *nrcell)
-{
- memset(nrcell->buf, 0, nrcell->size);
- nrcell->buf[4] = 16;
- nrcell->bits_unused = 4;
- nrcell->size = 5 * sizeof(uint8_t);
- return ROK;
-}
-
/********************************************************************
*
* @brief Builds and sends the F1SetupResponse
buildPlmnId(cuCb.cuCfgParams.plmn , cellToActivate->list.array[0]->value.choice.\
Cells_to_be_Activated_List_Item.nRCGI.pLMN_Identity.buf);
cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.\
- nRCGI.nRCellIdentity.size = 5;
+ nRCGI.nRCellIdentity.size = 5*sizeof(uint8_t);
CU_ALLOC(cellToActivate->list.array[0]->value.choice.\
Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf,\
- 5*sizeof(uint8_t));
+ cellToActivate->list.array[0]->value.choice.Cells_to_be_Activated_List_Item.\
+ nRCGI.nRCellIdentity.size);
if(cellToActivate->list.array[0]->value.choice.\
Cells_to_be_Activated_List_Item.nRCGI.nRCellIdentity.buf == NULLP)
{
if(ret == RFAILED)
DU_LOG("\nERROR --> F1AP: Failed to fill DL-CCCH Msg at RRC SETUP");
}
- else if(rrcMsgType == REGISTRATION_ACCEPT)
+ else if(rrcMsgType == RRC_SETUP_COMPLETE)
+ {
+ DU_LOG("\nINFO --> F1AP : Sending Security mode command");
+ char secModeBuf[9]={0x00, 0x02, 0x22, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00};
+ bufLen =9;
+ rrcContainer->size = bufLen;
+ CU_ALLOC(rrcContainer->buf, rrcContainer->size);
+ if(rrcContainer->buf != NULLP)
+ {
+ memset(rrcContainer->buf, 0, bufLen);
+ memcpy(rrcContainer->buf, secModeBuf, bufLen);
+ }
+ else
+ {
+ DU_LOG("\nERROR --> F1AP : Memory allocation failure for RRC Container buffer");
+ ret = RFAILED;
+ }
+ }
+ else if(rrcMsgType == SECURITY_MODE_COMPLETE)
{
/*Hardcoded RRC Container from reference logs*/
+ DU_LOG("\nINFO --> F1AP : Sending Registration accept");
char buf[14] ={0x00, 0x03, 0x2a, 0x80, 0xaf, 0xc0, 0x08, 0x40, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00};
bufLen =14;
rrcContainer->size = bufLen;
ret = RFAILED;
}
}
- else if(rrcMsgType == RRC_RECONFIG)
+ else if(rrcMsgType == UE_CONTEXT_SETUP_RSP)
{
- DU_LOG("\nDEBUG --> F1AP : Filling DL DCCH RRC Message ");
+ DU_LOG("\nINFO --> F1AP : Filling DL DCCH RRC Message for RRC Reconfiguration ");
ret = fillDlDcchRrcMsg(ueCb, rrcContainer);
if(ret == RFAILED)
DU_LOG("\nERROR --> F1AP: Failed to fill DL-DCCH Msg for RRC Reconfiguration");
case RRC_SETUP:
rrcMsgType = RRC_SETUP;
break;
- case REGISTRATION_ACCEPT:
- rrcMsgType = REGISTRATION_ACCEPT;
- break;
- case UE_CONTEXT_SETUP_REQ:
- rrcMsgType = UE_CONTEXT_SETUP_REQ;
+ case RRC_SETUP_COMPLETE:
+ rrcMsgType = RRC_SETUP_COMPLETE;
break;
case SECURITY_MODE_COMPLETE:
rrcMsgType = SECURITY_MODE_COMPLETE;
break;
- case RRC_RECONFIG:
- rrcMsgType = RRC_RECONFIG;
+ case REGISTRATION_COMPLETE:
+ rrcMsgType = REGISTRATION_COMPLETE;
+ break;
+ case UE_CONTEXT_SETUP_RSP:
+ rrcMsgType = UE_CONTEXT_SETUP_RSP;
break;
case RRC_RECONFIG_COMPLETE:
rrcMsgType = RRC_RECONFIG_COMPLETE;
break;
- case UE_CONTEXT_MOD_REQ:
- rrcMsgType = UE_CONTEXT_MOD_REQ;
- break;
default:
break;
}
CellGroupConfigRrc_t cellGrpCfg, *cellGrpCfgMsg = NULLP;
asn_dec_rval_t rval; /* Decoder return value */
+ /* Copy the received container to UeCb */
+ memcpy(&ueCb->f1apMsgDb.duToCuContainer, &rrcCont, sizeof(OCTET_STRING_t));
+
/* Decoding DU to CU RRC container octet string to cell group config */
cellGrpCfgMsg = &cellGrpCfg;
memset(cellGrpCfgMsg, 0, sizeof(CellGroupConfigRrc_t));
uint8_t procInitULRRCMsg(uint32_t duId, F1AP_PDU_t *f1apMsg)
{
- uint8_t idx,cellIdx=0, duIdx=0, rrcMsgType, gnbDuUeF1apId;
+ uint8_t idx = 0, duIdx=0, rrcMsgType=0, gnbDuUeF1apId=0;
uint8_t ret =ROK;
- uint32_t nrCellId, crnti;
+ uint16_t cellIdx=0, nrCellId = 0;
+ uint32_t crnti;
DuDb *duDb;
CuCellCb *cellCb;
CuUeCb *ueCb;
break;
case ProtocolIE_ID_id_NRCGI:
- nrCellId = initULRRCMsg->protocolIEs.list.array[idx]->value.choice.NRCGI.nRCellIdentity.buf[4] >>
- initULRRCMsg->protocolIEs.list.array[idx]->value.choice.NRCGI.nRCellIdentity.bits_unused;
+ bitStringToInt(&initULRRCMsg->protocolIEs.list.array[idx]->value.choice.NRCGI.nRCellIdentity, &nrCellId);
SEARCH_CELL_DB(cellIdx, duDb, nrCellId, cellCb);
if(cellCb == NULLP)
return RFAILED;
* RFAILED - failure
*
* ****************************************************************/
-uint8_t BuildULTnlInfo(TnlInfo *ulUpTnlInfo, ULUPTNLInformation_ToBeSetup_List_t *ulInfo, bool hoInProgress)
+uint8_t BuildULTnlInfo(uint8_t duId, TnlInfo *ulUpTnlInfo, ULUPTNLInformation_ToBeSetup_List_t *ulInfo, bool hoInProgress)
{
uint8_t idx;
uint8_t ulCnt;
* RFAILED - failure
*
* ****************************************************************/
-uint8_t BuildDRBSetup(CuUeCb *ueCb, DRBs_ToBeSetup_List_t *drbSet)
+uint8_t BuildDRBSetup(uint32_t duId, CuUeCb *ueCb, DRBs_ToBeSetup_List_t *drbSet)
{
+ uint16_t snssaiIdx=0;
uint8_t idx = 0, extIeIdx = 0;
uint8_t elementCnt = 0, drbCnt = 0;
uint8_t BuildQOSInforet = 0,BuildSNSSAIret = 0;
}
/*SNSSAI*/
+ snssaiIdx = (idx% cuCb.numSnssaiSupported);
if(ueCb->state != UE_HANDOVER_IN_PROGRESS)
BuildSNSSAIret = BuildSNSSAI(&ueCb->drbList[ueCb->numDrb], &drbSetItem->qoSInformation.choice.\
- choice_extension->value.choice.DRB_Information.sNSSAI, cuCb.snssaiList[0], FALSE);
+ choice_extension->value.choice.DRB_Information.sNSSAI, cuCb.snssaiList[snssaiIdx], FALSE);
else
BuildSNSSAIret = BuildSNSSAI(&ueCb->drbList[idx], &drbSetItem->qoSInformation.choice.\
- choice_extension->value.choice.DRB_Information.sNSSAI, cuCb.snssaiList[0], TRUE);
+ choice_extension->value.choice.DRB_Information.sNSSAI, NULLP, TRUE);
if(BuildSNSSAIret != ROK)
{
DU_LOG("\nERROR --> F1AP : Failed to build SNSSAI Info in BuildDRBSetup");
/*ULUPTNLInformation To Be Setup List*/
if(ueCb->state != UE_HANDOVER_IN_PROGRESS)
- BuildULTnlInforet = BuildULTnlInfo(&ueCb->drbList[ueCb->numDrb].ulUpTnlInfo, &drbSetItem->uLUPTNLInformation_ToBeSetup_List,\
+ BuildULTnlInforet = BuildULTnlInfo(duId, &ueCb->drbList[ueCb->numDrb].ulUpTnlInfo, &drbSetItem->uLUPTNLInformation_ToBeSetup_List,\
FALSE);
else
- BuildULTnlInforet = BuildULTnlInfo(&ueCb->drbList[idx].ulUpTnlInfo, &drbSetItem->uLUPTNLInformation_ToBeSetup_List,\
+ BuildULTnlInforet = BuildULTnlInfo(duId, &ueCb->drbList[idx].ulUpTnlInfo, &drbSetItem->uLUPTNLInformation_ToBeSetup_List,\
TRUE);
if(BuildULTnlInforet != ROK)
{
*
* @details
*
- * Function : fillRadioBearerConfig
+ * Function : freeRadioBearerConfig
*
* Functionality: Free Radio Bearer config
*
return ROK;
}
- CU_ALLOC(srbToAddList, sizeof(SRB_ToAddModList_t));
- if(!srbToAddList)
- {
- DU_LOG("\nERROR --> F1AP: Memory allocation failed for SRB to AddMod List in fillRadioBearerConfig");
- return RFAILED;
- }
srbToAddList->list.count = elementCnt;
srbToAddList->list.size = srbToAddList->list.count * sizeof(SRB_ToAddMod_t *);
return ROK;
}
- /* DRB To Add/Mod List */
- CU_ALLOC(drbToAddList, sizeof(DRB_ToAddModList_t));
- if(!drbToAddList)
- {
- DU_LOG("\nERROR --> F1AP: Memory allocation failed for DRB to AddMod List in fillRadioBearerConfig");
- return RFAILED;
- }
drbToAddList->list.count = elementCnt;
drbToAddList->list.size = drbToAddList->list.count * sizeof(DRB_ToAddMod_t *);
uint8_t fillRadioBearerConfig(CuUeCb *ueCb, RadioBearerConfig_t *radioBearerConfig, bool updateAllRbCfg)
{
/* SRB To Add/Mod List */
+ CU_ALLOC(radioBearerConfig->srb_ToAddModList, sizeof(SRB_ToAddModList_t));
+ if(!radioBearerConfig->srb_ToAddModList)
+ {
+ DU_LOG("\nERROR --> F1AP: Memory allocation failed for SRB to AddMod List in fillRadioBearerConfig");
+ return RFAILED;
+ }
if(fillSrbToAddModList(ueCb, radioBearerConfig->srb_ToAddModList, updateAllRbCfg) != ROK)
{
+ DU_LOG("\nERROR --> F1AP: failed to fill SRB to AddMod List");
return RFAILED;
}
+ /* DRB To Add/Mod List */
+ CU_ALLOC(radioBearerConfig->drb_ToAddModList, sizeof(DRB_ToAddModList_t));
+ if(!radioBearerConfig->drb_ToAddModList)
+ {
+ DU_LOG("\nERROR --> F1AP: Memory allocation failed for DRB to AddMod List in fillRadioBearerConfig");
+ return RFAILED;
+ }
if(fillDrbToAddModList(ueCb, radioBearerConfig->drb_ToAddModList, updateAllRbCfg) != ROK)
{
+ DU_LOG("\nERROR --> F1AP: failed to fill DRB to AddMod List ");
return RFAILED;
}
CU_ALLOC(rrcRecfg->masterCellGroup, sizeof(OCTET_STRING_t));
if(!rrcRecfg->masterCellGroup)
{
+ DU_LOG("\nERROR --> F1AP : Memory allocation failed in fillRrcReconfigNonCriticalExt");
return RFAILED;
}
+ rrcRecfg->masterCellGroup->size = ueCb->f1apMsgDb.duToCuContainer.size;
+ CU_ALLOC(rrcRecfg->masterCellGroup->buf, rrcRecfg->masterCellGroup->size);
+ if(!rrcRecfg->masterCellGroup->buf)
+ {
+ DU_LOG("\nERROR --> F1AP : Memory allocation failed in fillRrcReconfigNonCriticalExt");
+ return RFAILED;
+ }
+ memcpy(rrcRecfg->masterCellGroup->buf, ueCb->f1apMsgDb.duToCuContainer.buf, rrcRecfg->masterCellGroup->size);
+
+#if 0
+ /* Use below code if masterCEllGroup is to be filled explicitly at CU rather than copying from DUToCURRCContainer
+ * received from DU */
if(fillCellGrpCfg(ueCb, rrcRecfg->masterCellGroup, updateAllRbCfg) != ROK)
{
+ DU_LOG("\nERROR --> F1AP : Failed to fill CellGroupCfg in fillRrcReconfigNonCriticalExt");
return RFAILED;
}
+#endif
return ROK;
}
* RFAILED - failure
*
* ****************************************************************/
-uint8_t BuildAndSendUeContextSetupReq(uint32_t duId, CuUeCb *ueCb, uint16_t rrcContLen, uint8_t *rrcContainer)
+uint8_t BuildAndSendUeContextSetupReq(uint32_t duId, CuUeCb *ueCb)
{
uint8_t Nrcgiret, SplCellListret, SrbSetupret;
uint8_t ret= RFAILED, ret1;
if(ueCb->state == UE_HANDOVER_IN_PROGRESS)
elementCnt = 7;
else
- elementCnt = 12;
+ elementCnt = 11;
ueSetReq->protocolIEs.list.count = elementCnt;
ueSetReq->protocolIEs.list.size = elementCnt * sizeof(UEContextSetupRequestIEs_t *);
ueSetReq->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_DRBs_ToBeSetup_List;
ueSetReq->protocolIEs.list.array[idx]->criticality = Criticality_reject;
ueSetReq->protocolIEs.list.array[idx]->value.present = UEContextSetupRequestIEs__value_PR_DRBs_ToBeSetup_List;
- ret1 = BuildDRBSetup(ueCb, &ueSetReq->protocolIEs.list.array[idx]->value.choice.DRBs_ToBeSetup_List);
+ ret1 = BuildDRBSetup(duId, ueCb, &ueSetReq->protocolIEs.list.array[idx]->value.choice.DRBs_ToBeSetup_List);
if(ret1 != ROK)
{
break;
if(ueCb->state != UE_HANDOVER_IN_PROGRESS)
{
- /* RRC Container for security mode */
- idx++;
- ueSetReq->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_RRCContainer;
- ueSetReq->protocolIEs.list.array[idx]->criticality = Criticality_reject;
- ueSetReq->protocolIEs.list.array[idx]->value.present = UEContextSetupRequestIEs__value_PR_RRCContainer;
-
- char secModeBuf[9]={0x00, 0x02, 0x22, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00};
- bufLen =9;
- ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.size = bufLen;
- CU_ALLOC(ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf,
- ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.size);
- if(!ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf)
- {
- DU_LOG("\nERROR --> F1AP : Memory allocation for BuildAndSendUeContextSetupReq failed");
- break;
- }
- memset(ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf, 0, bufLen);
- memcpy(ueSetReq->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf, secModeBuf, bufLen);
-
/* RRC delivery status request */
idx++;
ueSetReq->protocolIEs.list.array[idx]->id = ProtocolIE_ID_id_RRCDeliveryStatusRequest;
* RFAILED - failure
*
* ****************************************************************/
-uint8_t addDrbTunnels(uint8_t teId)
+uint8_t addDrbTunnels(uint32_t duId, uint8_t teId)
{
uint8_t ret = ROK;
EgtpTnlEvt tnlEvt;
tnlEvt.action = EGTP_TNL_MGMT_ADD;
tnlEvt.lclTeid = teId;
tnlEvt.remTeid = teId;
- ret = cuEgtpTnlMgmtReq(tnlEvt);
+ ret = cuEgtpTnlMgmtReq(duId, tnlEvt);
if(ret != ROK)
{
DU_LOG("\nERROR --> EGTP : Tunnel management request failed for teId %x", teId);
* RFAILED - failure
*
* ****************************************************************/
-uint8_t procDrbSetupList(DRBs_Setup_List_t *drbSetupList)
+uint8_t procDrbSetupList(uint32_t duId, DRBs_Setup_List_t *drbSetupList)
{
uint8_t arrIdx = 0;
uint32_t teId = 0;
teId = extractTeId(&drbItemIe->value.choice.DRBs_Setup_Item.dLUPTNLInformation_ToBeSetup_List);
if(teId > 0)
{
- if(addDrbTunnels(teId)== ROK)
+ if(addDrbTunnels(duId, teId)== ROK)
{
DU_LOG("\nDEBUG --> EGTP: Tunnel Added for TeId %d", teId);
}
* ****************************************************************/
uint8_t procUeContextSetupResponse(uint32_t duId, F1AP_PDU_t *f1apMsg)
{
- uint8_t duIdx=0, idx, duUeF1apId;
- DuDb *duDb;
- CuUeCb *ueCb;
+ uint8_t duIdx = 0, idx = 0, ueIdx = 0, rrcMsgType=0;
+ uint8_t duUeF1apId = 0, cuUeF1apId = 0;
+ DuDb *duDb = NULLP;
+ CuUeCb *ueCb = NULLP;
UEContextSetupResponse_t *ueCtxtSetupRsp = NULLP;
+ OCTET_STRING_t *duToCuRrcContainer;
SEARCH_DU_DB(duIdx, duId, duDb);
ueCtxtSetupRsp = &f1apMsg->choice.successfulOutcome->value.choice.UEContextSetupResponse;
{
switch(ueCtxtSetupRsp->protocolIEs.list.array[idx]->id)
{
+ case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+ {
+ cuUeF1apId = ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID;
+ break;
+ }
case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
{
duUeF1apId = ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID;
ueCb = &duDb->ueCb[duUeF1apId-1];
+ /* If ue context is not present in du db, then create UE context
+ * here. This flow is hit in case of UE handover where UE
+ * context is created before UE performs RACH on target DU */
+ if(ueCb->gnbDuUeF1apId == 0)
+ {
+ /* Creating UE context in target DU */
+ memset(ueCb, 0, sizeof(CuUeCb));
+ ueCb->cellCb = &duDb->cellCb[0];
+ ueCb->gnbDuUeF1apId = duUeF1apId;
+ ueCb->gnbCuUeF1apId = cuUeF1apId;
+ ueCb->state = UE_HANDOVER_IN_PROGRESS;
+ ueCb->hoInfo.targetDuId = duId;
+ (duDb->numUe)++;
+
+ ueCb->cellCb->ueCb[ueCb->cellCb->numUe] = ueCb;
+ ueCb->cellCb->numUe++;
+ }
+ break;
+ }
+ case ProtocolIE_ID_id_C_RNTI:
+ {
+ ueCb->crnti = ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.C_RNTI;
break;
}
case ProtocolIE_ID_id_DRBs_Setup_List:
{
/* Adding Tunnels for successful DRB */
- procDrbSetupList(&ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.DRBs_Setup_List);
+ procDrbSetupList(duId, &ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.DRBs_Setup_List);
break;
}
case ProtocolIE_ID_id_DUtoCURRCInformation:
{
DU_LOG("\nINFO --> Received Du to Cu RRC Information ");
+ duToCuRrcContainer = &ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.\
+ DUtoCURRCInformation.cellGroupConfig;
if((extractDuToCuRrcCont(ueCb, ueCtxtSetupRsp->protocolIEs.list.array[idx]->value.choice.\
DUtoCURRCInformation.cellGroupConfig)) != ROK)
{
}
}
}
- ueCb->f1apMsgDb.dlRrcMsgCount++; /* keeping DL RRC Msg Count */
+
+ /* If the UE is in handover, UE context modification request is to be sent to
+ * source DU once UE context setup response is received from target DU */
+ if(ueCb->state == UE_HANDOVER_IN_PROGRESS)
+ {
+ DuDb *srcDuDb = NULLP;
+ CuUeCb *ueCbInSrcDu = NULLP;
+
+ /* Since Source DU Id and DU UE F1AP ID assigned to UE by source DU is not known here, we
+ * need to find Source DU and UE CB in source DU using CU UE F1AP ID */
+ for(duIdx=0; duIdx < cuCb.numDu; duIdx++)
+ {
+ /* UE context setup response is received from target DU. Search all
+ * DUs to find source DU except this target DU Id.*/
+ if(cuCb.duInfo[duIdx].duId != duId)
+ {
+ for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
+ {
+ /* Check following:
+ * 1. CU UE F1AP ID in srcDU->ueCb should be same as cuUeF1apId
+ * received in UE context setup response since CU UE F1AP ID does not
+ * change for UE in handover.
+ * 2. srcDU->UeCb->uestate should be UE_HANDOVER_IN_PROGRESS
+ */
+ if((cuCb.duInfo[duIdx].ueCb[ueIdx].gnbCuUeF1apId == cuUeF1apId) &&
+ (cuCb.duInfo[duIdx].ueCb[ueIdx].state == UE_HANDOVER_IN_PROGRESS))
+ {
+ srcDuDb = &cuCb.duInfo[duIdx];
+ ueCbInSrcDu = &cuCb.duInfo[duIdx].ueCb[ueIdx];
+
+ /* Store source DU info in the new UE context created in
+ * tareget DU */
+ ueCb->hoInfo.sourceDuId = srcDuDb->duId;
+
+ /* Copy the received container to UeCb */
+ memcpy(&ueCbInSrcDu->f1apMsgDb.duToCuContainer, duToCuRrcContainer, sizeof(OCTET_STRING_t));
+
+ if(BuildAndSendUeContextModificationReq(srcDuDb->duId, ueCbInSrcDu, STOP_DATA_TX) != ROK)
+ {
+ DU_LOG("\nERROR -> F1AP : Failed at BuildAndSendUeContextModificationReq()");
+ return RFAILED;
+ }
+ break;
+ }
+ }
+ }
+ if(srcDuDb && ueCbInSrcDu)
+ break;
+ }
+ }
+ else
+ {
+ ueCb->f1apMsgDb.dlRrcMsgCount++;
+ rrcMsgType = setDlRRCMsgType(ueCb);
+
+ DU_LOG("\nINFO --> F1AP: Sending DL RRC MSG for RRC reconfiguration");
+ if(BuildAndSendDLRRCMessageTransfer(duId, ueCb, SRB1, rrcMsgType) != ROK)
+ {
+ DU_LOG("\nINFO --> F1AP: Failed to build and send DL RRC MSG for RRC reconfiguration");
+ return RFAILED;
+ }
+ }
+
return ROK;
}
uint8_t procUlRrcMsg(uint32_t duId, F1AP_PDU_t *f1apMsg)
{
- uint8_t idx, ret, srbId, rrcMsgType, duIdx=0;
- uint8_t cuUeF1apId, duUeF1apId;
- uint8_t *rrcContainer = NULLP;
- uint16_t rrcContLen;
- DuDb *duDb;
- CuUeCb *ueCb;
+ uint8_t idx = 0, ret = ROK, srbId = 0, rrcMsgType = 0, duIdx=0;
+ uint8_t *rrcContainer = NULLP;
+ uint16_t rrcContLen = 0;
+ uint32_t cuUeF1apId = 0, duUeF1apId = 0;
+ DuDb *duDb = NULLP;
+ CuUeCb *ueCb = NULLP;
ULRRCMessageTransfer_t *ulRrcMsg = NULLP;
ret = ROK;
return RFAILED;
}
memcpy(rrcContainer, ulRrcMsg->protocolIEs.list.array[idx]->value.choice.RRCContainer.buf, rrcContLen);
+
+ if(duDb->ueCb[duUeF1apId-1].state == UE_HANDOVER_IN_PROGRESS)
+ {
+ uint8_t ueIdx = 0;
+ uint8_t srcDuId = duDb->ueCb[duUeF1apId-1].hoInfo.sourceDuId;
+ DuDb *srcDuDb = NULLP;
+
+ /* In target DU DB, mark UE as active and delete HO info */
+ duDb->ueCb[duUeF1apId-1].state = UE_ACTIVE;
+ memset(&duDb->ueCb[duUeF1apId-1].hoInfo, 0, sizeof(HandoverInfo));
+
+ /* Release UE context in source DU because the UE is now
+ * attached to target DU */
+ SEARCH_DU_DB(duIdx, srcDuId, srcDuDb);
+ for(ueIdx = 0; ueIdx < srcDuDb->numUe; ueIdx++)
+ {
+ if(srcDuDb->ueCb[ueIdx].gnbCuUeF1apId == cuUeF1apId)
+ {
+ ret = BuildAndSendUeContextReleaseCommand(srcDuId, srcDuDb->ueCb[ueIdx].gnbCuUeF1apId, srcDuDb->ueCb[ueIdx].gnbDuUeF1apId);
+ if(ret != ROK)
+ {
+ DU_LOG("\nINFO --> F1AP: Failed to build and send UE context release command to source DU Id [%d]", srcDuId);
+ }
+ break;
+ }
+ }
+ return ret;
+ }
break;
}
ueCb = &duDb->ueCb[duUeF1apId-1];
ueCb->f1apMsgDb.dlRrcMsgCount++;
rrcMsgType = setDlRRCMsgType(ueCb);
- if(rrcMsgType == REGISTRATION_ACCEPT)
+ if(rrcMsgType == RRC_SETUP_COMPLETE)
{
- DU_LOG("\nINFO --> F1AP: Sending DL RRC MSG for RRC Registration Accept");
+ DU_LOG("\nINFO --> F1AP: Sending DL RRC MSG for Security Mode Command");
ret = BuildAndSendDLRRCMessageTransfer(duId, ueCb, srbId, rrcMsgType);
}
- if(rrcMsgType == UE_CONTEXT_SETUP_REQ)
+ else if(rrcMsgType == SECURITY_MODE_COMPLETE)
{
- DU_LOG("\nINFO --> F1AP: Sending Ue Context Setup Req");
- ret = BuildAndSendUeContextSetupReq(duId, ueCb, rrcContLen, rrcContainer);
+ DU_LOG("\nINFO --> F1AP: Sending DL RRC MSG for RRC Registration Accept");
+ BuildAndSendDLRRCMessageTransfer(duId, ueCb, srbId, rrcMsgType);
}
- if(rrcMsgType == SECURITY_MODE_COMPLETE)
+ else if(rrcMsgType == REGISTRATION_COMPLETE)
{
- /* To trigger the DL RRC Msg for RRC Reconfig */
- ueCb->f1apMsgDb.dlRrcMsgCount++;
- rrcMsgType = setDlRRCMsgType(ueCb);
- if(rrcMsgType == RRC_RECONFIG)
- {
- DU_LOG("\nINFO --> F1AP: Sending DL RRC MSG for RRC Reconfig");
- BuildAndSendDLRRCMessageTransfer(duId, ueCb, srbId, rrcMsgType);
- }
+ DU_LOG("\nINFO --> F1AP: Sending Ue Context Setup Request");
+ ret = BuildAndSendUeContextSetupReq(duId, ueCb);
}
- if(rrcMsgType == RRC_RECONFIG_COMPLETE)
+ else if(rrcMsgType == RRC_RECONFIG_COMPLETE)
{
- ueCb->state = UE_ACTIVE;
- ueCb->f1apMsgDb.dlRrcMsgCount++;
- rrcMsgType = setDlRRCMsgType(ueCb);
- if(rrcMsgType == UE_CONTEXT_MOD_REQ)
- {
- DU_LOG("\nINFO --> F1AP: Sending UE Context Modification Request");
- BuildAndSendUeContextModificationReq(duId, ueCb, RRC_RECONFIG_COMPLETE_IND);
- }
+ DU_LOG("\nINFO --> F1AP: Sending UE Context Modification Request");
+ BuildAndSendUeContextModificationReq(duId, ueCb, RRC_RECONFIG_COMPLETE_IND);
}
}
return ret;
* RFAILED - failure
*
* ****************************************************************/
-uint8_t deleteEgtpTunnel(uint8_t *buf)
+uint8_t deleteEgtpTunnel(uint32_t duId, uint8_t *buf)
{
uint32_t teId = 0;
EgtpTnlEvt tnlEvt;
tnlEvt.action = EGTP_TNL_MGMT_DEL;
tnlEvt.lclTeid = teId;
tnlEvt.remTeid = teId;
- if((cuEgtpTnlMgmtReq(tnlEvt)) != ROK)
+ if((cuEgtpTnlMgmtReq(duId, tnlEvt)) != ROK)
{
DU_LOG("\nERROR --> EGTP : Failed to delete tunnel Id %d", teId);
}
* RFAILED - failure
*
* ****************************************************************/
-uint8_t BuildUlTnlInfoforSetupMod(uint8_t ueId, uint8_t drbId, TnlInfo *ulTnlInfo, ULUPTNLInformation_ToBeSetup_List_t *ulInfo, uint8_t actionType)
+uint8_t BuildUlTnlInfoforSetupMod(uint32_t duId, uint8_t ueId, uint8_t drbId, TnlInfo *ulTnlInfo, ULUPTNLInformation_ToBeSetup_List_t *ulInfo, uint8_t actionType)
{
uint8_t arrIdx;
uint8_t ulCnt;
*
* ****************************************************************/
-uint8_t FillDrbItemToSetupMod(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeSetupMod_Item_t *drbItem)
+uint8_t FillDrbItemToSetupMod(uint32_t duId, CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeSetupMod_Item_t *drbItem)
{
uint8_t ret = ROK;
}
/*ULUPTNLInformation To Be Setup List*/
- ret = BuildUlTnlInfoforSetupMod(ueCb->gnbCuUeF1apId, drbItem->dRBID, &ueCb->drbList[ueCb->numDrb].ulUpTnlInfo, \
+ ret = BuildUlTnlInfoforSetupMod(duId, ueCb->gnbCuUeF1apId, drbItem->dRBID, &ueCb->drbList[ueCb->numDrb].ulUpTnlInfo, \
&drbItem->uLUPTNLInformation_ToBeSetup_List, ProtocolIE_ID_id_DRBs_ToBeSetupMod_Item);
if(ret != ROK)
{
*
* ****************************************************************/
-uint8_t FillDrbItemList(CuUeCb *ueCb, uint8_t arrIdx, struct DRBs_ToBeSetupMod_ItemIEs *drbItemIe)
+uint8_t FillDrbItemList(uint32_t duId, CuUeCb *ueCb, uint8_t arrIdx, struct DRBs_ToBeSetupMod_ItemIEs *drbItemIe)
{
drbItemIe->id = ProtocolIE_ID_id_DRBs_ToBeSetupMod_Item;
drbItemIe->criticality = Criticality_reject;
drbItemIe->value.present = DRBs_ToBeSetupMod_ItemIEs__value_PR_DRBs_ToBeSetupMod_Item;
- if(FillDrbItemToSetupMod(ueCb, arrIdx, (&(drbItemIe->value.choice.DRBs_ToBeSetupMod_Item))) != ROK)
+ if(FillDrbItemToSetupMod(duId, ueCb, arrIdx, (&(drbItemIe->value.choice.DRBs_ToBeSetupMod_Item))) != ROK)
{
DU_LOG("\nERROR --> F1AP : FillDrbItemToSetupMod failed");
return RFAILED;
*
* ****************************************************************/
-uint8_t BuildDrbToBeSetupList(CuUeCb *ueCb, DRBs_ToBeSetupMod_List_t *drbSet)
+uint8_t BuildDrbToBeSetupList(uint32_t duId, CuUeCb *ueCb, DRBs_ToBeSetupMod_List_t *drbSet)
{
uint8_t ret = ROK;
uint8_t arrIdx =0;
return RFAILED;
}
- ret = FillDrbItemList(ueCb, arrIdx, (DRBs_ToBeSetupMod_ItemIEs_t *)drbSet->list.array[arrIdx]);
+ ret = FillDrbItemList(duId, ueCb, arrIdx, (DRBs_ToBeSetupMod_ItemIEs_t *)drbSet->list.array[arrIdx]);
if(ret != ROK)
{
DU_LOG("\nERROR --> F1AP : FillDrbItemList failed");
*
* ****************************************************************/
-uint8_t FillDrbToBeModItem(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeModified_Item_t *drbItem)
+uint8_t FillDrbToBeModItem(uint32_t duId, CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeModified_Item_t *drbItem)
{
uint8_t ret = ROK;
uint drbIdx=0;
}/* End of QoS */
/*ULUPTNLInformation To Be Setup List*/
- ret = BuildUlTnlInfoforSetupMod(ueCb->gnbCuUeF1apId, drbItem->dRBID, &drbToBeMod->ulUpTnlInfo, &drbItem->uLUPTNLInformation_ToBeSetup_List,\
+ ret = BuildUlTnlInfoforSetupMod(duId, ueCb->gnbCuUeF1apId, drbItem->dRBID, &drbToBeMod->ulUpTnlInfo, &drbItem->uLUPTNLInformation_ToBeSetup_List,\
ProtocolIE_ID_id_DRBs_ToBeModified_Item);
if(ret != ROK)
{
*
* ****************************************************************/
-uint8_t FillDrbToBeModItemList(CuUeCb *ueCb, uint8_t arrIdx, struct DRBs_ToBeModified_ItemIEs *drbItemIe)
+uint8_t FillDrbToBeModItemList(uint32_t duId, CuUeCb *ueCb, uint8_t arrIdx, struct DRBs_ToBeModified_ItemIEs *drbItemIe)
{
drbItemIe->id = ProtocolIE_ID_id_DRBs_ToBeModified_Item;
drbItemIe->criticality = Criticality_reject;
drbItemIe->value.present = DRBs_ToBeModified_ItemIEs__value_PR_DRBs_ToBeModified_Item;
- if(FillDrbToBeModItem(ueCb, arrIdx, &(drbItemIe->value.choice.DRBs_ToBeModified_Item)) != ROK)
+ if(FillDrbToBeModItem(duId, ueCb, arrIdx, &(drbItemIe->value.choice.DRBs_ToBeModified_Item)) != ROK)
{
DU_LOG("\nERROR --> F1AP : FillDrbToBeModItem failed");
return RFAILED;
*
* ****************************************************************/
-uint8_t BuildDrbToBeModifiedList(CuUeCb *ueCb, DRBs_ToBeModified_List_t *drbSet)
+uint8_t BuildDrbToBeModifiedList(uint32_t duId, CuUeCb *ueCb, DRBs_ToBeModified_List_t *drbSet)
{
uint8_t ret = ROK;
uint8_t arrIdx =0;
return RFAILED;
}
- ret = FillDrbToBeModItemList(ueCb, arrIdx, (DRBs_ToBeModified_ItemIEs_t *)drbSet->list.array[arrIdx]);
+ ret = FillDrbToBeModItemList(duId, ueCb, arrIdx, (DRBs_ToBeModified_ItemIEs_t *)drbSet->list.array[arrIdx]);
if(ret != ROK)
{
DU_LOG("\nERROR --> F1AP : FillDrbToBeModItemList failed");
CuUeCb *ueCb = (CuUeCb *)cuUeCb;
F1AP_PDU_t *f1apMsg = NULLP;
UEContextModificationRequest_t *ueContextModifyReq = NULLP;
- action =RESTART_DATA_TX;
asn_enc_rval_t encRetVal;
DU_LOG("\nINFO --> F1AP : Building Ue context modification request\n");
while(1)
ueContextModifyReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.present =\
UEContextModificationRequestIEs__value_PR_DRBs_ToBeSetupMod_List;
- ret = BuildDrbToBeSetupList(ueCb, &(ueContextModifyReq->protocolIEs.list.array[ieIdx]->\
+ ret = BuildDrbToBeSetupList(duId, ueCb, &(ueContextModifyReq->protocolIEs.list.array[ieIdx]->\
value.choice.DRBs_ToBeSetupMod_List));
/* DRB to be modified list */
ueContextModifyReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.present =\
UEContextModificationRequestIEs__value_PR_DRBs_ToBeModified_List;
- ret = BuildDrbToBeModifiedList(ueCb, &(ueContextModifyReq->protocolIEs.list.array[ieIdx]->\
+ ret = BuildDrbToBeModifiedList(duId, ueCb, &(ueContextModifyReq->protocolIEs.list.array[ieIdx]->\
value.choice.DRBs_ToBeModified_List));
/* TODO: DRB to be release list */
ueContextModifyReq->protocolIEs.list.array[ieIdx]->value.choice.TransmissionActionIndicator = \
TransmissionActionIndicator_restart;
}
+
ieIdx++;
ueContextModifyReq->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_RRCContainer;
ueContextModifyReq->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
else
{
DU_LOG("\nDEBUG --> F1AP : Created APER encodedbuffer for ueContextModifyReq\n");
+#if 0
+ /* This for loop was going into an infinite loop even though encBufSize
+ * has a small value. Hence commented this
+ */
for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
{
DU_LOG("%x",encBuf[ieIdx]);
}
+#endif
}
/* TODO : Hardcoding DU ID to 1 for messages other than F1 Setup Response. This will be made generic in future gerrit */
struct Served_Cells_To_Delete_ItemIEs *deleteItemIe = \
(struct Served_Cells_To_Delete_ItemIEs *)duCfgUpdate->protocolIEs.list.array[ieIdx]->value.choice.\
Served_Cells_To_Delete_List.list.array[0];
- nrCellId = deleteItemIe->value.choice.Served_Cells_To_Delete_Item.oldNRCGI.nRCellIdentity.buf[4] >>\
- deleteItemIe->value.choice.Served_Cells_To_Delete_Item.oldNRCGI.nRCellIdentity.bits_unused;
+ bitStringToInt(&deleteItemIe->value.choice.Served_Cells_To_Delete_Item.oldNRCGI.nRCellIdentity, &nrCellId);
cellToBeDelete = true;
break;
}
{
SEARCH_DU_DB(duIdx, duId, duDb);
SEARCH_CELL_DB(cellIdx, duDb, nrCellId, cellCb);
- for(ueIdx = 0; ueIdx < cellCb->numUe; ueIdx++)
+ if(cellCb->numUe == 0)
{
- CU_FREE(cellCb->ueCb[ueIdx]->f1apMsgDb.duToCuContainer.buf, cellCb->ueCb[ueIdx]->f1apMsgDb.duToCuContainer.size);
- memset(cellCb->ueCb[ueIdx], 0, sizeof(CuUeCb));
+ memset(cellCb, 0, sizeof(CuCellCb));
+ duDb->numCells--;
}
+ else
+ cellCb->cellStatus = CELL_DELETION_IN_PROGRESS;
}
-
return ROK;
}
* RFAILED - failure
*
* ****************************************************************/
-uint8_t procDrbSetupModList(CuUeCb *ueCb, DRBs_SetupMod_List_t *drbSetupList)
+uint8_t procDrbSetupModList(uint32_t duId, CuUeCb *ueCb, DRBs_SetupMod_List_t *drbSetupList)
{
uint8_t arrIdx = 0, drbIdx;
uint32_t teId = 0;
teId = extractTeId(&drbItemIe->value.choice.DRBs_SetupMod_Item.dLUPTNLInformation_ToBeSetup_List);
if(teId > 0)
{
- if(addDrbTunnels(teId)== ROK)
+ if(addDrbTunnels(duId, teId)== ROK)
{
DU_LOG("\nDEBUG --> EGTP: Tunnel Added for TeId %d", teId);
}
* ****************************************************************/
uint8_t procUeContextModificationResponse(uint32_t duId, F1AP_PDU_t *f1apMsg)
{
- uint8_t idx=0, duIdx=0, duUeF1apId;
- DuDb *duDb;
- CuUeCb *ueCb;
+ uint8_t idx=0, duIdx=0;
+ uint8_t duUeF1apId = 0, cuUeF1apId = 0;
+ DuDb *duDb = NULLP;
+ CuUeCb *ueCb = NULLP;
UEContextModificationResponse_t *ueCtxtModRsp = NULLP;
SEARCH_DU_DB(duIdx, duId, duDb);
{
switch(ueCtxtModRsp->protocolIEs.list.array[idx]->id)
{
+ case ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID:
+ {
+ cuUeF1apId = ueCtxtModRsp->protocolIEs.list.array[idx]->value.choice.GNB_CU_UE_F1AP_ID;
+ break;
+ }
case ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID:
{
duUeF1apId = ueCtxtModRsp->protocolIEs.list.array[idx]->value.choice.GNB_DU_UE_F1AP_ID;
case ProtocolIE_ID_id_DRBs_SetupMod_List:
{
/* Adding Tunnels for successful DRB */
- procDrbSetupModList(ueCb, &ueCtxtModRsp->protocolIEs.list.array[idx]->value.choice.DRBs_SetupMod_List);
+ procDrbSetupModList(duId, ueCb, &ueCtxtModRsp->protocolIEs.list.array[idx]->value.choice.DRBs_SetupMod_List);
break;
}
}
}
+
+ /* If UE is in handover and UE context is not yet created at target DU, then send
+ * UE context setup request to target DU */
if(ueCb->state == UE_HANDOVER_IN_PROGRESS)
{
- BuildAndSendUeContextSetupReq(ueCb->hoInfo.targetDuId, ueCb, 0, NULLP);
- return ROK;
+ uint8_t ueIdx = 0;
+ DuDb *tgtDuDb = NULLP;
+ CuUeCb *ueCbInTgtDu = NULLP;
+
+ SEARCH_DU_DB(duIdx, ueCb->hoInfo.targetDuId, tgtDuDb);
+ if(tgtDuDb)
+ {
+ /* Since DU UE F1AP ID assigned by target DU to this UE in handover is
+ * not known here, using CU UE F1AP ID to search for UE Cb in target DU
+ * DB */
+ for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
+ {
+ if(tgtDuDb->ueCb[ueIdx].gnbCuUeF1apId == cuUeF1apId)
+ {
+ ueCbInTgtDu = &tgtDuDb->ueCb[ueIdx];
+ break;
+ }
+ }
+
+ /* If UE context is not found in Target DU DU, send UE context setup
+ * request */
+ if(ueCbInTgtDu == NULLP)
+ {
+ if((BuildAndSendUeContextSetupReq(ueCb->hoInfo.targetDuId, ueCb)) != ROK)
+ {
+ DU_LOG("\nERROR -> F1AP : Failed at BuildAndSendUeContextSetupReq");
+ return RFAILED;
+ }
+ }
+ }
}
return ROK;
void procF1SetupReq(uint32_t *destDuId, F1AP_PDU_t *f1apMsg)
{
uint8_t ieIdx = 0, plmnidx=0, duIdx = 0, ret=ROK, cellIdx = 0;
- uint32_t duId = 0, nrCellId = 0;
+ uint32_t duId = 0;
+ uint64_t nrCellId = 0;
DuDb *duDb = NULLP;
CuCellCb *cellCb = NULLP;
BIT_STRING_t nrcellIdentity;
srvCellItem = &duServedCell->list.array[plmnidx]->value.choice.GNB_DU_Served_Cells_Item;
ret = procServedCellPlmnList(&srvCellItem->served_Cell_Information.servedPLMNs);
memcpy(&nrcellIdentity, &srvCellItem->served_Cell_Information.nRCGI.nRCellIdentity, sizeof(BIT_STRING_t));
-
- nrCellId = nrcellIdentity.buf[4] >> nrcellIdentity.bits_unused;
+
+ bitStringToInt(&nrcellIdentity, &nrCellId);
SEARCH_CELL_DB(cellIdx, duDb, nrCellId, cellCb);
if(cellCb == NULLP)
{
cellCb = &duDb->cellCb[duDb->numCells];
memset(cellCb, 0, sizeof(CuCellCb));
cellCb->nrCellId = nrCellId;
+ cellCb->cellStatus = CELL_ACTIVE;
duDb->numCells++;
}
}
{
gnbDuUeF1apId = ueReleaseComplete->protocolIEs.list.array[ieIdx]->value.choice.GNB_DU_UE_F1AP_ID;
ueCb = &duDb->ueCb[gnbDuUeF1apId-1];
-
- for(ueIdx = 0; ueIdx < ueCb->cellCb->numUe; ueIdx++)
+ for(ueIdx = 0; ueIdx <MAX_NUM_UE; ueIdx++)
{
- if((ueCb->cellCb->ueCb[ueIdx]->gnbCuUeF1apId == gnbCuUeF1apId) &&
- (ueCb->cellCb->ueCb[ueIdx]->gnbDuUeF1apId == gnbDuUeF1apId))
+ if(ueCb->cellCb && ueCb->cellCb->ueCb[ueIdx])
{
- ueCb->cellCb->ueCb[ueIdx] = NULLP;
- ueCb->cellCb->numUe--;
- break;
-
+ if((ueCb->cellCb->ueCb[ueIdx]->gnbCuUeF1apId == gnbCuUeF1apId) &&
+ (ueCb->cellCb->ueCb[ueIdx]->gnbDuUeF1apId == gnbDuUeF1apId))
+ {
+ ueCb->cellCb->ueCb[ueIdx] = NULLP;
+ ueCb->cellCb->numUe--;
+ if((ueCb->cellCb->numUe == 0) && (ueCb->cellCb->cellStatus == CELL_DELETION_IN_PROGRESS))
+ {
+ memset(ueCb->cellCb, 0, sizeof(CuCellCb));
+ duDb->numCells--;
+ }
+ break;
+ }
}
}
memset(ueCb, 0, sizeof(CuUeCb));
Code Review / o-du / l2.git / blobdiff