Merge "[Epic-ID: ODUHIGH-405][Task-ID: ODUHIGH-435] Memory related Fixes in CU stub...
[o-du/l2.git] / src / cu_stub / cu_f1ap_msg_hdl.c
index 45d6859..1515104 100644 (file)
 #include "MeasConfigRrc.h"
 #include "AS-Config.h"
 #include "RRCReconfiguration-v1530-IEs.h"
+#include "CNUEPagingIdentity.h"
+#include "PagingCell-Item.h"
 
 #include "cu_stub_sctp.h"
 #include "cu_stub_egtp.h"
@@ -2115,7 +2117,6 @@ uint8_t BuildNrcgi(NRCGI_t *nrcgi, uint32_t nrCellId)
    uint8_t ret;
    uint8_t unused_bits = 4;
    uint8_t byteSize = 5;
-   uint8_t val = nrCellId << unused_bits;
 
    /* Allocate Buffer Memory */
    nrcgi->pLMN_Identity.size = 3 * sizeof(uint8_t);
@@ -2136,7 +2137,7 @@ uint8_t BuildNrcgi(NRCGI_t *nrcgi, uint32_t nrCellId)
    {
       return RFAILED;
    }
-   fillBitString(&nrcgi->nRCellIdentity, unused_bits, byteSize, val);
+   fillBitString(&nrcgi->nRCellIdentity, unused_bits, byteSize, nrCellId);
 
    return ROK;
 }
@@ -2549,7 +2550,7 @@ uint8_t BuildFlowsMap(DrbInfo *drbInfo, Flows_Mapped_To_DRB_List_t *flowMap , ui
  *         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;
@@ -2628,7 +2629,7 @@ uint8_t BuildULTnlInfo(TnlInfo *ulUpTnlInfo, ULUPTNLInformation_ToBeSetup_List_t
       ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[0] = 0;
       ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[1] = 0;
       ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[2] = 0;
-      ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[3] = cuCb.cuCfgParams.egtpParams.currTunnelId++;
+      ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[3] = cuCb.cuCfgParams.egtpParams.egtpAssoc[duId-1].currTunnelId++;
 
       ulUpTnlInfo->teId[0] = ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[0];
       ulUpTnlInfo->teId[1] = ulInfo->list.array[idx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[1];
@@ -2661,7 +2662,7 @@ uint8_t BuildULTnlInfo(TnlInfo *ulUpTnlInfo, ULUPTNLInformation_ToBeSetup_List_t
  *         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)
 {
    uint8_t idx = 0, extIeIdx = 0;
    uint8_t elementCnt = 0, drbCnt = 0;
@@ -2758,10 +2759,10 @@ uint8_t BuildDRBSetup(CuUeCb *ueCb, DRBs_ToBeSetup_List_t *drbSet)
 
       /*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)
       {
@@ -7402,7 +7403,7 @@ void freeMeasIdToAddModList(MeasIdToAddModList_t *measIdList)
  * @return void
  *
  * ****************************************************************/
-uint8_t freeQuantityConfig(QuantityConfig_t *quantityCfg)
+void freeQuantityConfig(QuantityConfig_t *quantityCfg)
 {
    uint8_t quanCfgIdx;
    QuantityConfigNR_t *quantityCfgNr;
@@ -9034,7 +9035,7 @@ uint8_t BuildAndSendUeContextSetupReq(uint32_t duId, CuUeCb *ueCb, uint16_t rrcC
       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;
@@ -9181,7 +9182,7 @@ uint8_t extractTeId(DLUPTNLInformation_ToBeSetup_List_t *dlTnlInfo)
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint8_t addDrbTunnels(uint8_t teId)
+uint8_t addDrbTunnels(uint32_t duId, uint8_t teId)
 {
    uint8_t ret = ROK;
    EgtpTnlEvt tnlEvt;
@@ -9194,7 +9195,7 @@ uint8_t addDrbTunnels(uint8_t teId)
    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);
@@ -9217,7 +9218,7 @@ uint8_t addDrbTunnels(uint8_t 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;
@@ -9234,7 +9235,7 @@ uint8_t procDrbSetupList(DRBs_Setup_List_t *drbSetupList)
             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);
               }
@@ -9285,7 +9286,7 @@ uint8_t procUeContextSetupResponse(uint32_t duId, F1AP_PDU_t *f1apMsg)
           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:
@@ -9621,7 +9622,7 @@ void FreeUlTnlInfoforDrb2(ULUPTNLInformation_ToBeSetup_List_t *ulInfo)
 *         RFAILED - failure
 *
 * ****************************************************************/
-uint8_t deleteEgtpTunnel(uint8_t *buf)
+uint8_t deleteEgtpTunnel(uint32_t duId, uint8_t *buf)
 {
    uint32_t teId = 0;
    EgtpTnlEvt tnlEvt;
@@ -9636,7 +9637,7 @@ uint8_t deleteEgtpTunnel(uint8_t *buf)
    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);
    }
@@ -9659,7 +9660,7 @@ uint8_t deleteEgtpTunnel(uint8_t *buf)
 *         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;
@@ -9753,7 +9754,7 @@ uint8_t BuildUlTnlInfoforSetupMod(uint8_t ueId, uint8_t drbId, TnlInfo *ulTnlInf
    else
    {
       ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->\
-        gTP_TEID.buf[3] = cuCb.cuCfgParams.egtpParams.currTunnelId++;
+        gTP_TEID.buf[3] = cuCb.cuCfgParams.egtpParams.egtpAssoc[duId-1].currTunnelId++;
    }
 
    ulTnlInfo->teId[0] = ulInfo->list.array[arrIdx]->uLUPTNLInformation.choice.gTPTunnel->gTP_TEID.buf[0];
@@ -9864,7 +9865,7 @@ void FreeDrbItem(DRBs_ToBeSetupMod_Item_t *drbItem)
 *
 * ****************************************************************/
 
-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;
 
@@ -9944,7 +9945,7 @@ uint8_t FillDrbItemToSetupMod(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeSetupMod_It
    }
    
    /*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)
    {
@@ -9977,13 +9978,13 @@ uint8_t FillDrbItemToSetupMod(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeSetupMod_It
 *
 * ****************************************************************/
 
-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;
@@ -10047,7 +10048,7 @@ void FreeDrbToBeSetupModList(DRBs_ToBeSetupMod_List_t *drbSet)
 *
 * ****************************************************************/
 
-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;
@@ -10072,7 +10073,7 @@ uint8_t BuildDrbToBeSetupList(CuUeCb *ueCb, DRBs_ToBeSetupMod_List_t *drbSet)
          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");
@@ -10099,7 +10100,7 @@ uint8_t BuildDrbToBeSetupList(CuUeCb *ueCb, DRBs_ToBeSetupMod_List_t *drbSet)
 *
 * ****************************************************************/
 
-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;
@@ -10195,7 +10196,7 @@ uint8_t FillDrbToBeModItem(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeModified_Item_
    }/* 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)
    {
@@ -10222,12 +10223,12 @@ uint8_t FillDrbToBeModItem(CuUeCb *ueCb, uint8_t arrIdx, DRBs_ToBeModified_Item_
 *
 * ****************************************************************/
 
-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;
@@ -10253,7 +10254,7 @@ uint8_t FillDrbToBeModItemList(CuUeCb *ueCb, uint8_t arrIdx, struct DRBs_ToBeMod
 *
 * ****************************************************************/
 
-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;
@@ -10277,7 +10278,7 @@ uint8_t BuildDrbToBeModifiedList(CuUeCb *ueCb, DRBs_ToBeModified_List_t *drbSet)
          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");
@@ -10581,7 +10582,7 @@ uint8_t BuildAndSendUeContextModificationReq(uint32_t duId, void *cuUeCb, UeCtxt
          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 */
@@ -10590,7 +10591,7 @@ uint8_t BuildAndSendUeContextModificationReq(uint32_t duId, void *cuUeCb, UeCtxt
          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 */
@@ -11147,7 +11148,7 @@ uint8_t procSrbSetupModList(CuUeCb *ueCb, SRBs_SetupMod_List_t *srbSetupList)
  *         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;
@@ -11176,7 +11177,7 @@ uint8_t procDrbSetupModList(CuUeCb *ueCb, DRBs_SetupMod_List_t *drbSetupList)
             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);
               }
@@ -11287,7 +11288,7 @@ uint8_t procUeContextModificationResponse(uint32_t duId, F1AP_PDU_t *f1apMsg)
           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; 
 
              }
@@ -11488,6 +11489,362 @@ void procUeContextReleaseComplete(uint32_t duId, F1AP_PDU_t *f1apMsg)
    }
 }
 
+/*******************************************************************
+ *
+ * @brief Builds the Paging cell list 
+ *
+ * @details
+ *
+ *    Function : BuildPagingCellList
+ *
+ *    Functionality: Build the paging cell list 
+ *
+ * @params[in] PagingCell_list_t  *pagingCelllist,  
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildPagingCellList(PagingCell_list_t *pagingCelllist, uint8_t numCells, CuCellCb *cellCb)
+{
+   uint8_t cellIdx =0;
+   PagingCell_ItemIEs_t *pagingCellItemIes; 
+   PagingCell_Item_t *pagingCellItem;
+
+   pagingCelllist->list.count = numCells;
+   pagingCelllist->list.size = pagingCelllist->list.count * (sizeof(PagingCell_ItemIEs_t*));
+   CU_ALLOC(pagingCelllist->list.array, pagingCelllist->list.size);
+   if(pagingCelllist->list.array == NULLP)
+   {
+      DU_LOG("\nERROR  -->  F1AP : BuildPagingCellList(): Memory allocation failed ");
+      return RFAILED;
+   }
+
+   for(cellIdx = 0; cellIdx < pagingCelllist->list.count; cellIdx++)
+   {
+      CU_ALLOC(pagingCelllist->list.array[cellIdx], sizeof(PagingCell_ItemIEs_t));
+      if(pagingCelllist->list.array[cellIdx] == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildPagingCellList(): Memory allocation failed ");
+         return RFAILED;
+      }
+   }
+   
+   for(cellIdx = 0; cellIdx < pagingCelllist->list.count; cellIdx++)
+   {
+      pagingCellItemIes = (PagingCell_ItemIEs_t *)pagingCelllist->list.array[cellIdx];
+      pagingCellItemIes->id =  ProtocolIE_ID_id_PagingCell_Item;
+      pagingCellItemIes->criticality = Criticality_ignore;
+      pagingCellItemIes->value.present = PagingCell_ItemIEs__value_PR_PagingCell_Item; 
+      pagingCellItem = &pagingCellItemIes->value.choice.PagingCell_Item;
+   
+      /* Fill NrCgi Information */
+      BuildNrcgi(&pagingCellItem->nRCGI, cellCb[cellIdx].nrCellId);
+   }
+   
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Deallocation of memory allocated in paging msg
+ *
+ * @details
+ *
+ *    Function :FreePagingMsg 
+ *
+ *    Functionality: Deallocation of memory allocated in paging msg
+ *
+ * @params[in] F1AP_PDU_t *f1apMsg
+ *
+ * @return void 
+ *
+ * ****************************************************************/
+void FreePagingMsg(F1AP_PDU_t *f1apMsg)
+{
+   uint8_t ieIdx, cellIdx;
+   Paging_t   *paging;
+   PagingCell_ItemIEs_t *pagingCellItemIes;
+   PagingCell_Item_t *pagingCellItem;
+   PagingCell_list_t  *pagingCelllist;
+
+   if(f1apMsg)
+   {
+      if(f1apMsg->choice.initiatingMessage)
+      {
+         paging = &f1apMsg->choice.initiatingMessage->value.choice.Paging;
+         if(paging->protocolIEs.list.array)
+         {
+            for(ieIdx=0 ; ieIdx<paging->protocolIEs.list.count; ieIdx++)
+            {
+               if(paging->protocolIEs.list.array[ieIdx])
+               {
+                  switch(paging->protocolIEs.list.array[ieIdx]->id)
+                  {
+                     case ProtocolIE_ID_id_UEIdentityIndexValue:
+                     {
+                        CU_FREE(paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.buf,\
+                        paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.size);
+                        break;
+                     }
+                     
+                     case ProtocolIE_ID_id_PagingIdentity:
+                     {
+                        if(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.present == PagingIdentity_PR_cNUEPagingIdentity)
+                        {
+                           if(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity)
+                           {  
+                              if(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->present == CNUEPagingIdentity_PR_fiveG_S_TMSI)
+                              {
+                                 CU_FREE(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.buf,\
+                                 paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.size);
+                              }
+                                CU_FREE(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity,\
+                                sizeof(struct CNUEPagingIdentity));
+                           }
+                        }
+                        break;
+                     }
+                     
+                     case ProtocolIE_ID_id_PagingCell_List:
+                     {
+                        pagingCelllist = &paging->protocolIEs.list.array[ieIdx]->value.choice.PagingCell_list;
+                        if(pagingCelllist->list.array)
+                        {
+                           for(cellIdx = 0; cellIdx < pagingCelllist->list.count; cellIdx++)
+                           {
+                              if(pagingCelllist->list.array[cellIdx])
+                              {
+                                  pagingCellItemIes = (PagingCell_ItemIEs_t *)pagingCelllist->list.array[cellIdx];
+                                  if(pagingCellItemIes->id == ProtocolIE_ID_id_PagingCell_Item)
+                                  {
+                                     pagingCellItem = &pagingCellItemIes->value.choice.PagingCell_Item;
+                                     CU_FREE(pagingCellItem->nRCGI.pLMN_Identity.buf, pagingCellItem->nRCGI.pLMN_Identity.size);
+                                     CU_FREE(pagingCellItem->nRCGI.nRCellIdentity.buf, pagingCellItem->nRCGI.nRCellIdentity.size);
+                                  }
+                                  CU_FREE(pagingCelllist->list.array[cellIdx], sizeof(PagingCell_ItemIEs_t));
+                              }
+                           }
+                           CU_FREE(pagingCelllist->list.array, pagingCelllist->list.size);
+                        }
+                        break;
+                     }
+                  }
+                  CU_FREE(paging->protocolIEs.list.array[ieIdx], sizeof(Paging_t));
+               }
+            }
+            CU_FREE(paging->protocolIEs.list.array, paging->protocolIEs.list.size);
+         }
+         CU_FREE(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      }
+      CU_FREE(f1apMsg, sizeof(F1AP_PDU_t));
+   }
+}
+/*******************************************************************
+ *
+ * @brief Builds and sends the paging message if UE is in idle mode
+ *
+ * @details
+ *
+ *    Function : BuildAndSendPagingMsg
+ *
+ *    Functionality: Builds and sends the paging message
+ *
+ * @params[in] uint32_t duId, uint8_t gsTmsi
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t BuildAndSendPagingMsg(uint64_t gsTmsi, uint8_t duId)
+{
+   bool       memAllocFailed = false;
+   uint8_t    ieIdx = 0, elementCnt = 0, ret = RFAILED;
+   uint16_t   ueId = 0, duIdx = 0;
+
+   /*As per 38.473 Sec 9.3.1.39, UE Identity Index Value (10bits) > 2 Bytes + 6 Unused Bits
+    *5G-S-TMSI :48 Bits  >> 6 Bytes and 0 UnusedBits */
+   uint8_t    totalByteInUeId = 2, totalByteInTmsi = 6;
+   uint8_t    unusedBitsInUeId = 6, unusedBitsInTmsi = 0;
+
+   F1AP_PDU_t *f1apMsg = NULLP;
+   Paging_t   *paging = NULLP;
+   DuDb       *duDb;
+   asn_enc_rval_t         encRetVal;
+
+   DU_LOG("\nINFO  -->  F1AP : Building PAGING Message command\n");
+
+   SEARCH_DU_DB(duIdx, duId, duDb);
+   if(duDb == NULLP)
+   {
+      DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): DuDb is empty");
+      return ret; 
+   }
+
+   while(true)
+   {
+      CU_ALLOC(f1apMsg, sizeof(F1AP_PDU_t));
+      if(f1apMsg == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation for F1AP-PDU");
+         break;
+      }
+
+      f1apMsg->present =  F1AP_PDU_PR_initiatingMessage;
+
+      CU_ALLOC(f1apMsg->choice.initiatingMessage, sizeof(InitiatingMessage_t));
+      if(f1apMsg->choice.initiatingMessage == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation for F1AP-PDU failed ");
+         break;
+      }
+      f1apMsg->choice.initiatingMessage->procedureCode = ProcedureCode_id_Paging;
+      f1apMsg->choice.initiatingMessage->criticality = Criticality_reject;
+      f1apMsg->choice.initiatingMessage->value.present = InitiatingMessage__value_PR_Paging;
+
+      paging = &f1apMsg->choice.initiatingMessage->value.choice.Paging;
+
+      elementCnt = 5;
+      paging->protocolIEs.list.count = elementCnt;
+      paging->protocolIEs.list.size = elementCnt * sizeof(Paging_t*);
+
+      /* Initialize the Paging Message members */
+      CU_ALLOC(paging->protocolIEs.list.array, paging->protocolIEs.list.size);
+      if(paging->protocolIEs.list.array == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg():Memory allocation failed");
+         break;
+      }
+
+      for(ieIdx=0 ; ieIdx<elementCnt; ieIdx++)
+      {
+         CU_ALLOC(paging->protocolIEs.list.array[ieIdx], sizeof(Paging_t));
+         if(paging->protocolIEs.list.array[ieIdx] == NULLP)
+         {
+            DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation failed ");
+            memAllocFailed = true;  
+            break;
+         }
+      }
+
+      if(memAllocFailed == true)
+      {
+         break;
+      }
+
+      /* UE Identity Index Value */
+      ieIdx=0;
+      paging->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_UEIdentityIndexValue;
+      paging->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      paging->protocolIEs.list.array[ieIdx]->value.present = PagingIEs__value_PR_UEIdentityIndexValue;
+      paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.present = UEIdentityIndexValue_PR_indexLength10;
+      paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.size = totalByteInUeId*sizeof(uint8_t);
+      CU_ALLOC(paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.buf,\
+            paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.size);
+      if(paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10.buf == NULLP)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation failed ");
+         break;
+      }
+
+      /*As per 3gpp Spec 38.304 Sec 7.1: UE_ID: 5G-S-TMSI mod 1024*/
+      ueId = gsTmsi % 1024;
+      fillBitString(&paging->protocolIEs.list.array[ieIdx]->value.choice.UEIdentityIndexValue.choice.indexLength10, unusedBitsInUeId, totalByteInUeId, ueId);
+
+      /* Paging Identity */
+      ieIdx++;
+      paging->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_PagingIdentity;
+      paging->protocolIEs.list.array[ieIdx]->criticality = Criticality_reject;
+      paging->protocolIEs.list.array[ieIdx]->value.present = PagingIEs__value_PR_PagingIdentity;
+      paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.present = \
+                                                                                   PagingIdentity_PR_cNUEPagingIdentity;
+      CU_ALLOC(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity, \
+            sizeof(struct CNUEPagingIdentity));
+      if(!paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation failed ");
+         break;
+      }
+
+      paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->present = \
+                                                                                                              CNUEPagingIdentity_PR_fiveG_S_TMSI;
+
+      paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.size = totalByteInTmsi*sizeof(uint8_t);
+      CU_ALLOC(paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.buf,\
+            paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.size);
+      if(!paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.buf)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Memory allocation failed ");
+         break;
+      }
+
+      fillBitString(&paging->protocolIEs.list.array[ieIdx]->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI,\
+            unusedBitsInTmsi, totalByteInTmsi, gsTmsi);
+
+      /* Paging Drx */
+      ieIdx++;
+      paging->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_PagingDRX;
+      paging->protocolIEs.list.array[ieIdx]->criticality = Criticality_ignore;
+      paging->protocolIEs.list.array[ieIdx]->value.present = PagingIEs__value_PR_PagingDRX;
+      paging->protocolIEs.list.array[ieIdx]->value.choice.PagingDRX = PagingDRX_v32;
+
+      /* Paging Priority */
+      ieIdx++;
+      paging->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_PagingPriority;
+      paging->protocolIEs.list.array[ieIdx]->criticality = Criticality_ignore;
+      paging->protocolIEs.list.array[ieIdx]->value.present = PagingIEs__value_PR_PagingPriority;
+      paging->protocolIEs.list.array[ieIdx]->value.choice.PagingPriority = PagingPriority_priolevel2;
+
+      /* Paging Cell List */
+      ieIdx++;
+      paging->protocolIEs.list.array[ieIdx]->id = ProtocolIE_ID_id_PagingCell_List;
+      paging->protocolIEs.list.array[ieIdx]->criticality = Criticality_ignore;
+      paging->protocolIEs.list.array[ieIdx]->value.present = PagingIEs__value_PR_PagingCell_list;
+      if(BuildPagingCellList(&paging->protocolIEs.list.array[ieIdx]->value.choice.PagingCell_list, duDb->numCells, duDb->cellCb) != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : BuildAndSendPagingMsg(): Failed to build Paging cell list "); 
+         break;
+      }
+
+      xer_fprint(stdout, &asn_DEF_F1AP_PDU, f1apMsg);
+
+      /* Encode the UE Context Release Command type as APER */
+      memset(encBuf, 0, ENC_BUF_MAX_LEN);
+      encBufSize = 0;
+      encRetVal = aper_encode(&asn_DEF_F1AP_PDU, 0, f1apMsg, PrepFinalEncBuf,\
+            encBuf);
+
+      /* Encode results */
+      if(encRetVal.encoded == ENCODE_FAIL)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Could not encode Release Command structure (at %s)\n",\
+               encRetVal.failed_type ? encRetVal.failed_type->name : "unknown");
+         break;
+      }
+      else
+      {
+         DU_LOG("\nDEBUG  -->  F1AP : Created APER encoded buffer for Paging\n");
+         for(ieIdx=0; ieIdx< encBufSize; ieIdx++)
+         {
+            DU_LOG("%x",encBuf[ieIdx]);
+         }
+      }
+
+      if(SendF1APMsg(CU_APP_MEM_REG, CU_POOL, duId) != ROK)
+      {
+         DU_LOG("\nERROR  -->  F1AP : Sending Ue context Release Command failed");
+         break;
+      }
+
+      ret = ROK;
+      break;
+
+   }
+
+   FreePagingMsg(f1apMsg); 
+   return ret;
+}
+
 /*******************************************************************
  *
  * @brief Handles received F1AP message and sends back response