+
+ /* Fetch UE CB and DU DB in Source CU for UE under Inter-CU Handover */
+ CMCHKUNPK(oduPackUInt8, &(cuUeF1apIdSrc), mBuf);
+ for(duIdx = 0; duIdx < cuCb.numDu; duIdx++)
+ {
+ for(ueIdx = 0; ueIdx < MAX_NUM_CELL * MAX_NUM_UE; ueIdx++)
+ {
+ if(cuCb.duInfo[duIdx].ueCb[ueIdx].gnbCuUeF1apId == cuUeF1apIdSrc)
+ {
+ duDb = &cuCb.duInfo[duIdx];
+ ueCb = &cuCb.duInfo[duIdx].ueCb[ueIdx];
+ break;
+ }
+ }
+ if(duDb && ueCb)
+ break;
+ }
+ if(!duDb || !ueCb)
+ {
+ DU_LOG("\nERROR --> CU STUB : UE CB not found for CU UE F1AP ID [%d]", cuUeF1apIdSrc);
+ return;
+ }
+
+ /* Decode CU UE F1AP ID assigned by Target CU to UE in handover and store
+ * this in hoInfo block for use during future message exchange between the
+ * two CUs */
+ CMCHKUNPK(oduPackUInt8, &(cuUeF1apIdTgt), mBuf);
+ ueCb->hoInfo.cuUeF1apIdTgt = cuUeF1apIdTgt;
+
+ /* Decode DU to CU RRC Container received in Xn Msg */
+ OCTET_STRING_t rrcCont;
+ MsgLen copyCnt;
+
+ /* Copy mBuf into char array to decode it */
+ memset(&rrcCont, 0, sizeof(OCTET_STRING_t));
+ ODU_GET_MSG_LEN(mBuf, &rrcCont.size);
+ CU_ALLOC(rrcCont.buf, rrcCont.size);
+ if(rrcCont.buf == NULLP)
+ {
+ DU_LOG("\nERROR --> XNAP : Memory allocation failed");
+ return;
+ }
+ if(ODU_COPY_MSG_TO_FIX_BUF(mBuf, 0, rrcCont.size, (Data *)rrcCont.buf, ©Cnt) != ROK)
+ {
+ DU_LOG("\nERROR --> F1AP : Failed while copying %d", copyCnt);
+ return;
+ }
+
+ /* Extract DU to CU RRC container information and store in UE CB */
+ extractDuToCuRrcCont(ueCb, rrcCont);
+
+ CU_FREE(rrcCont.buf, rrcCont.size);
+
+ /* Send UE Context Modification request after filling it using the information received in
+ * Xn Handover Request Ack */
+ if(BuildAndSendUeContextModificationReq(duDb->duId, ueCb, STOP_DATA_TX) != ROK)
+ {
+ DU_LOG("\nERROR -> F1AP : Failed at BuildAndSendUeContextModificationReq()");
+ return;
+ }