/******************************************************************************* ################################################################################ # Copyright (c) [2017-2019] [Radisys] # # # # Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 # # # # 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. # ################################################################################ *******************************************************************************/ /* This functions contains main() for cu_app */ #include "common_def.h" #include "cu_stub_sctp.h" #include "cu_stub_egtp.h" #include "OCTET_STRING.h" #include "cu_f1ap_msg_hdl.h" #include "cu_stub.h" #ifdef O1_ENABLE #include "CmInterface.h" #endif #ifdef O1_ENABLE extern StartupConfig g_cfg; #endif /******************************************************************* * * @brief Handles SCTP notification * * @details * * Function : sctpNtfyInd * * Functionality: * Handles SCTP notification * * @params[in] sctp notification * @return void * ******************************************************************/ void sctpNtfyInd(CmInetSctpNotification *ntfy) { //TODO } void init_log() { openlog("CU_STUB",LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1); } /******************************************************************* * * @brief Main function of CU APP * * @details * * Function : main * * Functionality: * - Reads CU related configurations * - Initialize SCTP Parameters * - Start SCTP receiver thread * * @params[in] * @return ROK - success * RFAILED - failure * * ****************************************************************/ uint8_t tst() { int retVal=0; pthread_t conThrdId; pthread_attr_t attr; init_log(); DU_LOG("\nINFO --> CU_STUB : Starting CU_STUB\n"); /* Start thread to receive console input */ pthread_attr_init(&attr); pthread_attr_setstacksize(&attr, (size_t)NULLD); pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); retVal = pthread_create(&conThrdId, &attr, cuConsoleHandler, NULLP); if(retVal != 0) { DU_LOG("\nERROR --> CU_STUB : Thread creation failed. Cause %d", retVal); } pthread_attr_destroy(&attr); /* Read CU configurations */ readCuCfg(); /* Start CU-EGTP */ egtpActvInit(); egtpInitReq(); /* Initializing SCTP global parameters */ sctpActvInit(); /* Start CU-SCTP to listen on incoming connection */ sctpCfgReq(); sctpStartReq(); return ROK; } /******************************************************************* * * @brief Read CU related configuration * * @details * * Function : readCuCfg * * Functionality: * - RRead CU related configuration * * @params[in] * @return ROK - success * RFAILED - failure * * ****************************************************************/ void readCuCfg() { uint8_t numDu, *numRemoteCu; uint32_t ipv4_du, ipv4_cu, ipv4_remote_cu; DU_LOG("\nDEBUG --> CU_STUB : Reading CU configurations"); cuCb.cuCfgParams.cuId = CU_ID; strcpy(cuCb.cuCfgParams.cuName, CU_NAME); #ifdef O1_ENABLE if( getStartupConfigForStub(&g_cfg) != ROK ) { DU_LOG("\nError --> CU_STUB : Could not fetch startup "\ "configurations from Netconf interface\n"); exit(1); } cmInetAddr((S8*)g_cfg.DU_IPV4_Addr, &ipv4_du); cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[0].destIpAddr.ipV4Addr = ipv4_du; cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[0].destIpAddr.ipV6Pres = false; cmInetAddr((S8*)g_cfg.CU_IPV4_Addr, &ipv4_cu); cuCb.cuCfgParams.sctpParams.localIpAddr.ipV4Addr = ipv4_cu; cuCb.cuCfgParams.sctpParams.localIpAddr.ipV6Pres = false; cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[0].destPort = g_cfg.DU_Port; cuCb.cuCfgParams.sctpParams.f1SctpInfo.port = g_cfg.CU_Port; cuCb.cuCfgParams.sctpParams.f1SctpInfo.numDestNode = 1; cuCb.cuCfgParams.egtpParams.localIp.ipV4Pres = TRUE; cuCb.cuCfgParams.egtpParams.localIp.ipV4Addr = ipv4_cu; cuCb.cuCfgParams.egtpParams.localPort = F1_EGTP_PORT; cuCb.cuCfgParams.egtpParams.dstCfg[0].dstIp.ipV4Pres = TRUE; cuCb.cuCfgParams.egtpParams.dstCfg[0].dstIp.ipV4Addr = ipv4_du; cuCb.cuCfgParams.egtpParams.dstCfg[0].dstPort = F1_EGTP_PORT; cuCb.cuCfgParams.egtpParams.minTunnelId = MIN_TEID; cuCb.cuCfgParams.egtpParams.currTunnelId = cuCb.cuCfgParams.egtpParams.minTunnelId; cuCb.cuCfgParams.egtpParams.maxTunnelId = MAX_TEID; cuCb.cuCfgParams.egtpParams.numDu = 1; #else /* CU IP Address and Port*/ memset(&ipv4_du, 0, sizeof(uint32_t)); cmInetAddr((S8*)LOCAL_IP_CU, &ipv4_cu); cuCb.cuCfgParams.sctpParams.localIpAddr.ipV4Addr = ipv4_cu; cuCb.cuCfgParams.sctpParams.localIpAddr.ipV6Pres = false; /* SCTP and EGTP configuration for F1 Interface */ cuCb.cuCfgParams.sctpParams.f1SctpInfo.port = F1_SCTP_PORT; cuCb.cuCfgParams.egtpParams.localIp.ipV4Pres = TRUE; cuCb.cuCfgParams.egtpParams.localIp.ipV4Addr = ipv4_cu; cuCb.cuCfgParams.egtpParams.localPort = F1_EGTP_PORT; cuCb.cuCfgParams.sctpParams.f1SctpInfo.numDestNode = 0; cuCb.cuCfgParams.egtpParams.numDu = 0; numDu = 0; while(numDu < NUM_F1_ASSOC) { /* DU IP Address */ memset(&ipv4_du, 0, sizeof(uint32_t)); cmInetAddr((S8*)REMOTE_IP_DU[numDu], &ipv4_du); /* SCTP Parameters */ cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[numDu].destIpAddr.ipV4Addr = ipv4_du; cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[numDu].destIpAddr.ipV6Pres = false; cuCb.cuCfgParams.sctpParams.f1SctpInfo.destCb[numDu].destPort = F1_SCTP_PORT; /* EGTP Parameters */ cuCb.cuCfgParams.egtpParams.dstCfg[numDu].dstIp.ipV4Pres = TRUE; cuCb.cuCfgParams.egtpParams.dstCfg[numDu].dstIp.ipV4Addr = ipv4_du; cuCb.cuCfgParams.egtpParams.dstCfg[numDu].dstPort = F1_EGTP_PORT; (numDu)++; } cuCb.cuCfgParams.egtpParams.minTunnelId = MIN_TEID; cuCb.cuCfgParams.egtpParams.currTunnelId = cuCb.cuCfgParams.egtpParams.minTunnelId; cuCb.cuCfgParams.egtpParams.maxTunnelId = MAX_TEID; cuCb.cuCfgParams.egtpParams.numDu = numDu; cuCb.cuCfgParams.sctpParams.f1SctpInfo.numDestNode = numDu; /* SCTP configuration for Xn interface */ cuCb.cuCfgParams.sctpParams.xnSctpInfo.port = XN_SCTP_PORT; cuCb.cuCfgParams.sctpParams.xnSctpInfo.localNodeType = LOCAL_NODE_TYPE; numRemoteCu = &cuCb.cuCfgParams.sctpParams.xnSctpInfo.numDestNode; (*numRemoteCu) = 0; while((*numRemoteCu) < NUM_XN_ASSOC) { /* Remote CU IP address */ memset(&ipv4_remote_cu, 0, sizeof(uint32_t)); cmInetAddr((S8*)REMOTE_IP_CU[*numRemoteCu], &ipv4_remote_cu); /* SCTP Parameters */ cuCb.cuCfgParams.sctpParams.xnSctpInfo.destCb[*numRemoteCu].destIpAddr.ipV4Addr = ipv4_remote_cu; cuCb.cuCfgParams.sctpParams.xnSctpInfo.destCb[*numRemoteCu].destIpAddr.ipV6Pres = false; cuCb.cuCfgParams.sctpParams.xnSctpInfo.destCb[*numRemoteCu].destPort = XN_SCTP_PORT; (*numRemoteCu)++; } #endif /*PLMN*/ cuCb.cuCfgParams.plmn.mcc[0] = PLMN_MCC0; cuCb.cuCfgParams.plmn.mcc[1] = PLMN_MCC1; cuCb.cuCfgParams.plmn.mcc[2] = PLMN_MCC2; cuCb.cuCfgParams.plmn.mnc[0] = PLMN_MNC0; cuCb.cuCfgParams.plmn.mnc[1] = PLMN_MNC1; cuCb.cuCfgParams.plmn.mnc[2] = PLMN_MNC2; /*RRC Version*/ cuCb.cuCfgParams.rrcVersion.rrcVer = RRC_VER; cuCb.cuCfgParams.rrcVersion.extRrcVer = EXT_RRC_VER; } /* End of readCuCfg */ /******************************************************************* * * @brief Initiates inter DU handover * * @details * * Function : initiateInterDuHandover * * Functionality: Initiates the first procedure of inter-DU * handover i.eG GNB-DU configuration query to source DU * * @params[in] Source DU Id * Target DU Id * UE Id to be handed off * @return ROK - success * RFAILED - failure * * ****************************************************************/ void initiateInterDuHandover(uint32_t sourceDuId, uint32_t targetDuId, uint32_t duUeF1apId) { uint8_t duIdx = 0; DuDb *duDb = NULLP; CuUeCb *ueCb = NULLP; DU_LOG("\nINFO --> CU_STUB: Inter-DU Handover Started for ueId [%d] from DU ID [%d] to DU ID [%d]", \ duUeF1apId, sourceDuId, targetDuId); SEARCH_DU_DB(duIdx, sourceDuId, duDb); if(duDb) ueCb = &duDb->ueCb[duUeF1apId-1]; if(ueCb) { ueCb->state = UE_HANDOVER_IN_PROGRESS; ueCb->hoInfo.HOType = Inter_DU_HO; ueCb->hoInfo.srcNodeId = sourceDuId; ueCb->hoInfo.tgtNodeId = targetDuId; BuildAndSendUeContextModificationReq(sourceDuId, ueCb, QUERY_CONFIG); } else { DU_LOG("\nINFO --> CU_STUB: DU UE F1AP ID [%d] not found", duUeF1apId); } } /******************************************************************* * * @brief Initiates inter CU handover * * @details * * Function : initiateInterCuHandover * * Functionality: Initiates the first procedure of inter-CU * handover * * @params[in] Source CU Id * Target CU Id * UE Id to be handed off * @return ROK - success * RFAILED - failure * * ****************************************************************/ void initiateInterCuHandover(uint32_t targetCuId, uint32_t cellId, uint32_t cuUeF1apId) { uint8_t duIdx, ueIdx; CuUeCb *ueCb = NULLP; DU_LOG("\nINFO --> CU_STUB: Inter-CU Handover Started for ueId [%d] to CU ID [%d]", \ cuUeF1apId, targetCuId); for(duIdx = 0; duIdx < cuCb.numDu; duIdx++) { for(ueIdx = 0; ueIdx < (MAX_NUM_CELL * MAX_NUM_UE); ueIdx++) { ueCb = &cuCb.duInfo[duIdx].ueCb[ueIdx]; if(cuCb.duInfo[duIdx].ueCb[ueIdx].gnbCuUeF1apId == cuUeF1apId) { ueCb = &cuCb.duInfo[duIdx].ueCb[ueIdx]; break; } } if(ueCb) break; } if(ueCb) { ueCb->state = UE_HANDOVER_IN_PROGRESS; ueCb->hoInfo.HOType = Xn_Based_Inter_CU_HO; ueCb->hoInfo.srcNodeId = cuCb.cuCfgParams.cuId; ueCb->hoInfo.tgtNodeId = targetCuId; ueCb->hoInfo.tgtCellId = cellId; ueCb->hoInfo.cuUeF1apIdSrc = ueCb->gnbCuUeF1apId; BuildAndSendUeContextModificationReq(cuCb.duInfo[duIdx].duId, ueCb, QUERY_CONFIG); } else { DU_LOG("\nINFO --> CU_STUB: CU UE F1AP ID [%d] not found", cuUeF1apId); } } /******************************************************************* * * @brief start Dl data * * @details * * Function : startDlData * * Functionality: start the downlink data * * @params[in] * @return ROK - success * RFAILED - failure * * ****************************************************************/ uint8_t startDlData() { uint32_t teId = 0; uint32_t duId; uint8_t ret = ROK; uint8_t cnt = 0; int32_t totalNumOfTestFlow = 200; EgtpTeIdCb *teidCb = NULLP; while(totalNumOfTestFlow) { for(duId = 1; duId <= cuCb.cuCfgParams.egtpParams.numDu; duId++) { for(teId = 1; teId <= NUM_TUNNEL_TO_PUMP_DATA; teId++) { teidCb = NULLP; cmHashListFind(&(egtpCb.dstCb[duId-1].teIdLst), (uint8_t *)&(teId), sizeof(uint32_t), 0, (PTR *)&teidCb); if(teidCb) { cnt =0; DU_LOG("\nDEBUG --> EGTP: Sending DL User Data(duId %d, teId:%d)\n", duId, teId); while(cnt < NUM_DL_PACKETS) { ret = cuEgtpDatReq(duId, teId); if(ret != ROK) { DU_LOG("\nERROR --> EGTP: Issue with teid=%d\n",teId); break; } /* TODO : sleep(1) will be removed later once we will be able to * support the continuous data pack transfer */ sleep(1); cnt++; } } else { DU_LOG("\nDEBUG --> EGTP: TunnelId Not Found for (duId %d, teId:%d)\n", duId, teId); } } } totalNumOfTestFlow--; } return ROK; } /******************************************************************* * * @brief Handles Console input * * @details * * Function : cuConsoleHandler * * Functionality: Handles Console input * * @params[in] * @return ROK - success * RFAILED - failure * * ****************************************************************/ void *cuConsoleHandler(void *args) { char ch; while(true) { ch = getchar(); /* Send DL user data to CU when user enters 'd' on console */ if(ch == 'd') { /* Change #if 0 to #if 1 to take input from user */ #if 0 DU_LOG("\n EGTP --> : Enter TEID id(1..10) where DL Data to be sent\n"); scanf("%d",&teId); if(teId > MAX_TEID || teId < MIN_TEID) { DU_LOG("\nERROR --> EGTP : TEID(%x) OUT Of Range",teId); printf("\n"); continue; } /* Start Pumping data from CU to DU */ DU_LOG("\nDEBUG --> EGTP: Sending DL User Data(teId:%d)\n",teId); cnt =0; while(cnt < NUM_DL_PACKETS) { ret = cuEgtpDatReq(teId); if(ret != ROK) { DU_LOG("\nERROR --> EGTP: Issue with teid=%d\n",teId); break; } cnt++; } #else /* This variable is taken for sending specific number of downlink data packet. * Presently the code is supporting total 4500 data packets trasfer for 3 UEs only with sleep(1). * If you wants to pump data for 3 UE change the following macro values * NUM_TUNNEL_TO_PUMP_DATA = 9, NUM_DL_PACKETS = 1. * totalDataPacket = totalNumOfTestFlow * NUM_TUNNEL_TO_PUMP_DATA * NUM_DL_PACKETS * totalDataPacket = [500*9*1] */ startDlData(); #endif continue; } /* Start Handover procedure towards DU when 'h' is received from console input */ else if(ch == 'h') { HandoverType hoType; uint32_t srcNodeId, tgtNodeId, targetCellId, ueId; DU_LOG("\n\nChoose the type of handover to initiate : \nEnter 1 for Inter-CU Handover over Xn interface\nEnter 2 for Inter-DU Handover\n"); scanf("%d", &hoType); if(hoType == Xn_Based_Inter_CU_HO) { DU_LOG("\nEnter Target CU ID for Inter-CU Handover : "); scanf("%d", &tgtNodeId); DU_LOG("\nEnter Target Physical Cell ID for Inter-CU Handover : "); scanf("%d", &targetCellId); DU_LOG("\nEnter CU UE F1AP ID to be handed over : "); scanf("%d", &ueId); initiateInterCuHandover(tgtNodeId, targetCellId, ueId); } else if(hoType == Inter_DU_HO) { DU_LOG("\nEnter Source DU ID for Inter-DU Handover : "); scanf("%d", &srcNodeId); DU_LOG("\nEnter Target DU ID for Inter-DU Handover : "); scanf("%d", &tgtNodeId); DU_LOG("\nEnter DU UE F1AP ID to be handed over : "); scanf("%d", &ueId); initiateInterDuHandover(srcNodeId, tgtNodeId, ueId); } } /* Start Idle mode paging when 'p' is received from console input */ else if(ch == 'p') { uint64_t sTmsi = 0; uint8_t duId = 0; DU_LOG("\nEnter DU ID on which this UE to be pagged"); scanf("%d", &duId); DU_LOG("\nEnter 5g-S-TMSI"); scanf("%lu", &sTmsi); if(BuildAndSendPagingMsg(sTmsi, duId) != ROK) { DU_LOG("\nERROR --> EGTP: Failed to build and send paging message for 5gsTmsi[%lu]\n", sTmsi); } continue; } else if(ch == 'm') { uint8_t ueId = 1; uint8_t duId = 0; uint8_t duIdx = 0; DuDb *duDb = NULLP; CuUeCb *ueCb = NULLP; DU_LOG("\nEnter DU ID whose UE has to be modified"); scanf("%d", &duId); DU_LOG("\nEnter UE ID to be modified"); scanf("%d", &ueId); DU_LOG("\nINFO --> CU_STUB: UE Context Mod for ueId [%d] at DU ID [%d]", \ ueId, duId); SEARCH_DU_DB(duIdx, duId, duDb); if(duDb) { ueCb = &duDb->ueCb[ueId-1]; BuildAndSendUeContextModificationReq(duId, ueCb, MODIFY_UE); } else { DU_LOG("ERROR --> DuDb is NULLP"); } continue; } /*UE context release command from CU*/ else if(ch == 'c') { uint32_t duId, cuUeF1apId, duUeF1apId; uint8_t duIdx = 0; DuDb *duDb = NULLP; DU_LOG("\nEnter DU ID on which UE has to be released"); scanf("%d", &duId); DU_LOG("\nEnter UE ID to be released"); scanf("%d", &duUeF1apId); SEARCH_DU_DB(duIdx, duId, duDb); if(duDb) { if(duDb->ueCb[duUeF1apId-1].gnbDuUeF1apId == duUeF1apId) { cuUeF1apId = duDb->ueCb[duUeF1apId-1].gnbCuUeF1apId; DU_LOG("INFO --> CU_STUB: Cu UeId: %d Du UeId:%d",cuUeF1apId, duUeF1apId); BuildAndSendUeContextReleaseCommand(duId, cuUeF1apId, duUeF1apId); } else { DU_LOG("ERROR --> CU_STUB: Du UeId:%d in UeCb mismatch",\ duDb->ueCb[duUeF1apId-1].gnbDuUeF1apId); } } sleep(5); continue; } } } /********************************************************************** End of file **********************************************************************/