/* * 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 rrc_gNB.c * \brief rrc procedures for gNB * \author Navid Nikaein and Raymond Knopp , WEI-TAI CHEN * \date 2011 - 2014 , 2018 * \version 1.0 * \company Eurecom, NTUST * \email: navid.nikaein@eurecom.fr and raymond.knopp@eurecom.fr, kroempa@gmail.com */ #define RRC_GNB_C #define RRC_GNB_C #include "nr_rrc_config.h" #include "nr_rrc_defs.h" #include "nr_rrc_extern.h" #include "assertions.h" #include "common/ran_context.h" #include "asn1_conversions.h" #include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h" #include "LAYER2/RLC/rlc.h" #include "LAYER2/NR_MAC_gNB/mac_proto.h" #include "common/utils/LOG/log.h" #include "COMMON/mac_rrc_primitives.h" #include "RRC/NR/MESSAGES/asn1_msg.h" #include "NR_BCCH-BCH-Message.h" #include "NR_UL-DCCH-Message.h" #include "NR_DL-DCCH-Message.h" #include "NR_CellGroupConfig.h" #include "NR_MeasResults.h" #include "LTE_UECapabilityInformation.h" #include "LTE_UL-DCCH-Message.h" #include "NR_UL-CCCH-Message.h" #include "NR_RRCSetupRequest-IEs.h" #include "NR_RRCSetupComplete-IEs.h" #include "NR_RRCReestablishmentRequest-IEs.h" #include "NR_MIB.h" #include "rlc.h" #include "rrc_eNB_UE_context.h" #include "platform_types.h" #include "msc.h" #include "common/utils/LOG/vcd_signal_dumper.h" #include "T.h" #include "RRC/NAS/nas_config.h" #include "RRC/NAS/rb_config.h" #include "OCG.h" #include "OCG_extern.h" #include "UTIL/OSA/osa_defs.h" #include "rrc_eNB_S1AP.h" #include "rrc_gNB_NGAP.h" #include "rrc_eNB_GTPV1U.h" #include "nr_pdcp/nr_pdcp_entity.h" #include "pdcp.h" #include "gtpv1u_eNB_task.h" #include "intertask_interface.h" #include "SIMULATION/TOOLS/sim.h" // for taus #include "executables/softmodem-common.h" #include <openair2/RRC/NR/rrc_gNB_UE_context.h> #include <openair2/X2AP/x2ap_eNB.h> #include "BIT_STRING.h" #include "assertions.h" //#define XER_PRINT extern RAN_CONTEXT_t RC; extern boolean_t nr_rrc_pdcp_config_asn1_req( const protocol_ctxt_t *const ctxt_pP, NR_SRB_ToAddModList_t *const srb2add_list, NR_DRB_ToAddModList_t *const drb2add_list, NR_DRB_ToReleaseList_t *const drb2release_list, const uint8_t security_modeP, uint8_t *const kRRCenc, uint8_t *const kRRCint, uint8_t *const kUPenc, uint8_t *const kUPint #if (LTE_RRC_VERSION >= MAKE_VERSION(9, 0, 0)) ,LTE_PMCH_InfoList_r9_t *pmch_InfoList_r9 #endif ,rb_id_t *const defaultDRB, struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list); extern rlc_op_status_t nr_rrc_rlc_config_asn1_req (const protocol_ctxt_t * const ctxt_pP, const NR_SRB_ToAddModList_t * const srb2add_listP, const NR_DRB_ToAddModList_t * const drb2add_listP, const NR_DRB_ToReleaseList_t * const drb2release_listP, const LTE_PMCH_InfoList_r9_t * const pmch_InfoList_r9_pP, struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_srb_bearer2add_list, struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_drb_bearer2add_list); static inline uint64_t bitStr_to_uint64(BIT_STRING_t *asn); mui_t rrc_gNB_mui = 0; uint8_t first_rrcreconfiguration = 0; ///---------------------------------------------------------------------------------------------------------------/// ///---------------------------------------------------------------------------------------------------------------/// void openair_nr_rrc_on(const protocol_ctxt_t *const ctxt_pP) { LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_FMT" gNB:OPENAIR NR RRC IN....\n",PROTOCOL_NR_RRC_CTXT_ARGS(ctxt_pP)); rrc_config_nr_buffer (&RC.nrrrc[ctxt_pP->module_id]->carrier.SI, BCCH, 1); RC.nrrrc[ctxt_pP->module_id]->carrier.SI.Active = 1; rrc_config_nr_buffer (&RC.nrrrc[ctxt_pP->module_id]->carrier.Srb0, CCCH, 1); RC.nrrrc[ctxt_pP->module_id]->carrier.Srb0.Active = 1; } ///---------------------------------------------------------------------------------------------------------------/// ///---------------------------------------------------------------------------------------------------------------/// void rrc_gNB_process_SgNBAdditionRequest( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *ue_context_pP ) { rrc_gNB_generate_SgNBAdditionRequestAcknowledge(ctxt_pP,ue_context_pP); } void rrc_gNB_generate_SgNBAdditionRequestAcknowledge( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP) { //uint8_t size; //uint8_t buffer[100]; //int CC_id = ue_context_pP->ue_context.primaryCC_id; //OCTET_STRING_t *secondaryCellGroup; NR_CellGroupConfig_t *cellGroupconfig; struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_BearerToAddModList; struct NR_MAC_CellGroupConfig *mac_CellGroupConfig; struct NR_PhysicalCellGroupConfig *physicalCellGroupConfig; struct NR_SpCellConfig *spCellConfig; //struct NR_CellGroupConfig__sCellToAddModList *sCellToAddModList; cellGroupconfig = CALLOC(1,sizeof(NR_CellGroupConfig_t)); cellGroupconfig->rlc_BearerToAddModList = CALLOC(1,sizeof(struct NR_CellGroupConfig__rlc_BearerToAddModList)); cellGroupconfig->mac_CellGroupConfig = CALLOC(1,sizeof(struct NR_MAC_CellGroupConfig)); cellGroupconfig->physicalCellGroupConfig = CALLOC(1,sizeof(struct NR_PhysicalCellGroupConfig)); cellGroupconfig->spCellConfig = CALLOC(1,sizeof(struct NR_SpCellConfig)); //cellGroupconfig->sCellToAddModList = CALLOC(1,sizeof(struct NR_CellGroupConfig__sCellToAddModList)); rlc_BearerToAddModList = cellGroupconfig->rlc_BearerToAddModList; mac_CellGroupConfig = cellGroupconfig->mac_CellGroupConfig; physicalCellGroupConfig = cellGroupconfig->physicalCellGroupConfig; spCellConfig = cellGroupconfig->spCellConfig; //sCellToAddModList = cellGroupconfig->sCellToAddModList; rlc_bearer_config_t *rlc_config; rlc_config = CALLOC(1,sizeof(rlc_bearer_config_t)); //Fill rlc_bearer config value rrc_config_rlc_bearer(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, rlc_config ); //Fill rlc_bearer config to structure do_RLC_BEARER(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, rlc_BearerToAddModList, rlc_config); mac_cellgroup_t *mac_cellgroup_config; mac_cellgroup_config = CALLOC(1,sizeof(mac_cellgroup_t)); //Fill mac_cellgroup_config config value rrc_config_mac_cellgroup(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, mac_cellgroup_config ); //Fill mac_cellgroup config to structure do_MAC_CELLGROUP(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, mac_CellGroupConfig, mac_cellgroup_config); physicalcellgroup_t *physicalcellgroup_config; physicalcellgroup_config = CALLOC(1,sizeof(physicalcellgroup_t)); //Fill physicalcellgroup_config config value rrc_config_physicalcellgroup(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, physicalcellgroup_config ); //Fill physicalcellgroup config to structure do_PHYSICALCELLGROUP(ctxt_pP->module_id, ue_context_pP->ue_context.primaryCC_id, physicalCellGroupConfig, physicalcellgroup_config); do_SpCellConfig(RC.nrrrc[ctxt_pP->module_id], spCellConfig); } ///---------------------------------------------------------------------------------------------------------------/// ///---------------------------------------------------------------------------------------------------------------/// static void init_NR_SI(gNB_RRC_INST *rrc, gNB_RrcConfigurationReq *configuration) { LOG_D(RRC,"%s()\n\n\n\n",__FUNCTION__); if (NODE_IS_DU(rrc->node_type) || NODE_IS_MONOLITHIC(rrc->node_type)) { rrc->carrier.MIB = (uint8_t *) malloc16(4); rrc->carrier.sizeof_MIB = do_MIB_NR(rrc,0); } if((get_softmodem_params()->sa) && ( (NODE_IS_DU(rrc->node_type) || NODE_IS_MONOLITHIC(rrc->node_type)))) { rrc->carrier.sizeof_SIB1 = do_SIB1_NR(&rrc->carrier,configuration); } if (!NODE_IS_DU(rrc->node_type)) { rrc->carrier.SIB23 = (uint8_t *) malloc16(100); AssertFatal(rrc->carrier.SIB23 != NULL, "cannot allocate memory for SIB"); rrc->carrier.sizeof_SIB23 = do_SIB23_NR(&rrc->carrier, configuration); LOG_I(NR_RRC,"do_SIB23_NR, size %d \n ", rrc->carrier.sizeof_SIB23); AssertFatal(rrc->carrier.sizeof_SIB23 != 255,"FATAL, RC.nrrrc[mod].carrier[CC_id].sizeof_SIB23 == 255"); } LOG_I(NR_RRC,"Done init_NR_SI\n"); if (NODE_IS_MONOLITHIC(rrc->node_type)){ rrc_mac_config_req_gNB(rrc->module_id, rrc->carrier.ssb_SubcarrierOffset, rrc->carrier.pdsch_AntennaPorts, rrc->carrier.pusch_AntennaPorts, (NR_ServingCellConfigCommon_t *)rrc->carrier.servingcellconfigcommon, 0, 0, // WIP hardcoded rnti (NR_CellGroupConfig_t *)NULL ); } /* set flag to indicate that cell information is configured. This is required * in DU to trigger F1AP_SETUP procedure */ pthread_mutex_lock(&rrc->cell_info_mutex); rrc->cell_info_configured=1; pthread_mutex_unlock(&rrc->cell_info_mutex); if (get_softmodem_params()->phy_test > 0 || get_softmodem_params()->do_ra > 0) { // This is for phytest only, emulate first X2 message if uecap.raw file is present FILE *fd; fd = fopen("uecap.raw","r"); if (fd != NULL) { char buffer[4096]; int msg_len=fread(buffer,1,4096,fd); LOG_I(RRC,"Read in %d bytes for uecap\n",msg_len); LTE_UL_DCCH_Message_t *LTE_UL_DCCH_Message; asn_dec_rval_t dec_rval = uper_decode_complete( NULL, &asn_DEF_LTE_UL_DCCH_Message, (void **)<E_UL_DCCH_Message, (uint8_t *)buffer, msg_len); if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)) { AssertFatal(1==0,"NR_UL_DCCH_MESSAGE decode error\n"); // free the memory SEQUENCE_free( &asn_DEF_LTE_UL_DCCH_Message, LTE_UL_DCCH_Message, 1 ); return; } fclose(fd); xer_fprint(stdout,&asn_DEF_LTE_UL_DCCH_Message, LTE_UL_DCCH_Message); // recreate enough of X2 EN-DC Container AssertFatal(LTE_UL_DCCH_Message->message.choice.c1.present == LTE_UL_DCCH_MessageType__c1_PR_ueCapabilityInformation, "ueCapabilityInformation not present\n"); NR_CG_ConfigInfo_t *CG_ConfigInfo = calloc(1,sizeof(*CG_ConfigInfo)); CG_ConfigInfo->criticalExtensions.present = NR_CG_ConfigInfo__criticalExtensions_PR_c1; CG_ConfigInfo->criticalExtensions.choice.c1 = calloc(1,sizeof(*CG_ConfigInfo->criticalExtensions.choice.c1)); CG_ConfigInfo->criticalExtensions.choice.c1->present = NR_CG_ConfigInfo__criticalExtensions__c1_PR_cg_ConfigInfo; CG_ConfigInfo->criticalExtensions.choice.c1->choice.cg_ConfigInfo = calloc(1,sizeof(*CG_ConfigInfo->criticalExtensions.choice.c1->choice.cg_ConfigInfo)); NR_CG_ConfigInfo_IEs_t *cg_ConfigInfo = CG_ConfigInfo->criticalExtensions.choice.c1->choice.cg_ConfigInfo; cg_ConfigInfo->ue_CapabilityInfo = calloc(1,sizeof(*cg_ConfigInfo->ue_CapabilityInfo)); asn_enc_rval_t enc_rval = uper_encode_to_buffer(&asn_DEF_LTE_UE_CapabilityRAT_ContainerList,NULL, (void *)<E_UL_DCCH_Message->message.choice.c1.choice.ueCapabilityInformation.criticalExtensions.choice.c1.choice.ueCapabilityInformation_r8.ue_CapabilityRAT_ContainerList,buffer,4096); AssertFatal (enc_rval.encoded > 0, "ASN1 message encoding failed (%s, %jd)!\n", enc_rval.failed_type->name, enc_rval.encoded); OCTET_STRING_fromBuf(cg_ConfigInfo->ue_CapabilityInfo, (const char *)buffer, (enc_rval.encoded+7)>>3); parse_CG_ConfigInfo(rrc,CG_ConfigInfo,NULL); } else { struct rrc_gNB_ue_context_s *ue_context_p = rrc_gNB_allocate_new_UE_context(rrc); ue_context_p->ue_context.spCellConfig = calloc(1, sizeof(struct NR_SpCellConfig)); ue_context_p->ue_context.spCellConfig->spCellConfigDedicated = configuration->scd; LOG_I(NR_RRC,"Adding new user (%p)\n",ue_context_p); if (!NODE_IS_CU(RC.nrrrc[0]->node_type)) { rrc_add_nsa_user(rrc,ue_context_p,NULL); } } } } char openair_rrc_gNB_configuration(const module_id_t gnb_mod_idP, gNB_RrcConfigurationReq *configuration) { protocol_ctxt_t ctxt; gNB_RRC_INST *rrc=RC.nrrrc[gnb_mod_idP]; PROTOCOL_CTXT_SET_BY_MODULE_ID(&ctxt, gnb_mod_idP, GNB_FLAG_YES, NOT_A_RNTI, 0, 0,gnb_mod_idP); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_FMT" Init...\n", PROTOCOL_NR_RRC_CTXT_ARGS(&ctxt)); AssertFatal(rrc != NULL, "RC.nrrrc not initialized!"); AssertFatal(NUMBER_OF_UE_MAX < (module_id_t)0xFFFFFFFFFFFFFFFF, " variable overflow"); AssertFatal(configuration!=NULL,"configuration input is null\n"); rrc->module_id = gnb_mod_idP; rrc->Nb_ue = 0; rrc->carrier.Srb0.Active = 0; nr_uid_linear_allocator_init(&rrc->uid_allocator); RB_INIT(&rrc->rrc_ue_head); rrc->initial_id2_s1ap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL); rrc->s1ap_id2_s1ap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL); rrc->initial_id2_ngap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL); rrc->ngap_id2_ngap_ids = hashtable_create (NUMBER_OF_UE_MAX * 2, NULL, NULL); rrc->carrier.servingcellconfigcommon = configuration->scc; rrc->carrier.ssb_SubcarrierOffset = configuration->ssb_SubcarrierOffset; rrc->carrier.pdsch_AntennaPorts = configuration->pdsch_AntennaPorts; rrc->carrier.pusch_AntennaPorts = configuration->pusch_AntennaPorts; /// System Information INIT pthread_mutex_init(&rrc->cell_info_mutex,NULL); rrc->cell_info_configured = 0; LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_FMT" Checking release \n",PROTOCOL_NR_RRC_CTXT_ARGS(&ctxt)); init_NR_SI(rrc, configuration); rrc_init_nr_global_param(); openair_nr_rrc_on(&ctxt); return 0; }//END openair_rrc_gNB_configuration void rrc_gNB_process_AdditionRequestInformation(const module_id_t gnb_mod_idP, x2ap_ENDC_sgnb_addition_req_t *m) { struct NR_CG_ConfigInfo *cg_configinfo = NULL; asn_dec_rval_t dec_rval = uper_decode_complete(NULL, &asn_DEF_NR_CG_ConfigInfo, (void **)&cg_configinfo, (uint8_t *)m->rrc_buffer, (int) m->rrc_buffer_size);//m->rrc_buffer_size); gNB_RRC_INST *rrc=RC.nrrrc[gnb_mod_idP]; if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)) { AssertFatal(1==0,"NR_UL_DCCH_MESSAGE decode error\n"); // free the memory SEQUENCE_free(&asn_DEF_NR_CG_ConfigInfo, cg_configinfo, 1); return; } xer_fprint(stdout,&asn_DEF_NR_CG_ConfigInfo, cg_configinfo); // recreate enough of X2 EN-DC Container AssertFatal(cg_configinfo->criticalExtensions.choice.c1->present == NR_CG_ConfigInfo__criticalExtensions__c1_PR_cg_ConfigInfo, "ueCapabilityInformation not present\n"); parse_CG_ConfigInfo(rrc,cg_configinfo,m); } //----------------------------------------------------------------------------- uint8_t rrc_gNB_get_next_transaction_identifier( module_id_t gnb_mod_idP ) //----------------------------------------------------------------------------- { static uint8_t nr_rrc_transaction_identifier[NUMBER_OF_gNB_MAX]; nr_rrc_transaction_identifier[gnb_mod_idP] = (nr_rrc_transaction_identifier[gnb_mod_idP] + 1) % NR_RRC_TRANSACTION_IDENTIFIER_NUMBER; LOG_T(NR_RRC, "generated xid is %d\n", nr_rrc_transaction_identifier[gnb_mod_idP]); return nr_rrc_transaction_identifier[gnb_mod_idP]; } void apply_macrlc_config(gNB_RRC_INST *rrc, rrc_gNB_ue_context_t *const ue_context_pP, const protocol_ctxt_t *const ctxt_pP ) { rrc_mac_config_req_gNB(rrc->module_id, rrc->carrier.ssb_SubcarrierOffset, rrc->carrier.pdsch_AntennaPorts, rrc->carrier.pusch_AntennaPorts, NULL, 0, ue_context_pP->ue_context.rnti, ue_context_pP->ue_context.masterCellGroup ); nr_rrc_rlc_config_asn1_req(ctxt_pP, ue_context_pP->ue_context.SRB_configList, NULL, NULL, NULL, ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList, NULL); } void apply_pdcp_config(rrc_gNB_ue_context_t *const ue_context_pP, const protocol_ctxt_t *const ctxt_pP ) { nr_rrc_pdcp_config_asn1_req(ctxt_pP, ue_context_pP->ue_context.SRB_configList, NULL, NULL, 0xff, NULL, NULL, NULL, NULL, NULL, NULL, ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList); } //----------------------------------------------------------------------------- void rrc_gNB_generate_RRCSetup( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP, OCTET_STRING_t *masterCellGroup_from_DU, NR_ServingCellConfigCommon_t *scc, const int CC_id ) //----------------------------------------------------------------------------- { LOG_I(NR_RRC, "rrc_gNB_generate_RRCSetup \n"); NR_SRB_ToAddModList_t **SRB_configList = NULL; MessageDef *message_p; // T(T_GNB_RRC_SETUP, // T_INT(ctxt_pP->module_id), // T_INT(ctxt_pP->frame), // T_INT(ctxt_pP->subframe), // T_INT(ctxt_pP->rnti)); gNB_RRC_UE_t *ue_p = &ue_context_pP->ue_context; ue_p->Srb0.Tx_buffer.payload_size = do_RRCSetup(ue_context_pP, (uint8_t *) ue_p->Srb0.Tx_buffer.Payload, rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id), masterCellGroup_from_DU, scc); LOG_DUMPMSG(NR_RRC, DEBUG_RRC, (char *)(ue_p->Srb0.Tx_buffer.Payload), ue_p->Srb0.Tx_buffer.payload_size, "[MSG] RRC Setup\n"); gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id]; switch (rrc->node_type) { case ngran_gNB_CU: // create an ITTI message /* TODO: F1 IDs ar missing in RRC */ nr_rrc_pdcp_config_asn1_req(ctxt_pP, ue_context_pP->ue_context.SRB_configList, NULL, NULL, 0xff, NULL, NULL, NULL, NULL, NULL, NULL, NULL); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, F1AP_DL_RRC_MESSAGE); F1AP_DL_RRC_MESSAGE (message_p).rrc_container = (uint8_t *)ue_p->Srb0.Tx_buffer.Payload; F1AP_DL_RRC_MESSAGE (message_p).rrc_container_length = ue_p->Srb0.Tx_buffer.payload_size; F1AP_DL_RRC_MESSAGE (message_p).gNB_CU_ue_id = 0; F1AP_DL_RRC_MESSAGE (message_p).gNB_DU_ue_id = 0; F1AP_DL_RRC_MESSAGE (message_p).old_gNB_DU_ue_id = 0xFFFFFFFF; // unknown F1AP_DL_RRC_MESSAGE (message_p).rnti = ue_p->rnti; F1AP_DL_RRC_MESSAGE (message_p).srb_id = CCCH; F1AP_DL_RRC_MESSAGE (message_p).execute_duplication = 1; F1AP_DL_RRC_MESSAGE (message_p).RAT_frequency_priority_information.en_dc = 0; itti_send_msg_to_task (TASK_CU_F1, ctxt_pP->module_id, message_p); LOG_D(NR_RRC, "Send F1AP_DL_RRC_MESSAGE with ITTI\n"); break; case ngran_gNB_DU: // nothing to do for DU AssertFatal(1==0,"nothing to do for DU\n"); break; case ngran_gNB: { // rrc_mac_config_req_gNB #ifdef ITTI_SIM LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel DL-CCCH, Generating RRCSetup (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_p->Srb0.Tx_buffer.payload_size); uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, ue_p->Srb0.Tx_buffer.payload_size); memcpy (message_buffer, (uint8_t*)ue_p->Srb0.Tx_buffer.Payload, ue_p->Srb0.Tx_buffer.payload_size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_CCCH_DATA_IND); GNB_RRC_CCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_CCCH_DATA_IND (message_p).size = ue_p->Srb0.Tx_buffer.payload_size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRC_gNB --- MAC_CONFIG_REQ (SRB1) ---> MAC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, ue_p->Srb0.Tx_buffer.Header, // LG WARNING ue_p->Srb0.Tx_buffer.payload_size, MSC_AS_TIME_FMT" RRCSetup UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, ue_p->Srb0.Tx_buffer.payload_size); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel DL-CCCH, Generating RRCSetup (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_p->Srb0.Tx_buffer.payload_size); // activate release timer, if RRCSetupComplete not received after 100 frames, remove UE ue_context_pP->ue_context.ue_release_timer = 1; // remove UE after 10 frames after RRCConnectionRelease is triggered ue_context_pP->ue_context.ue_release_timer_thres = 1000; /* init timers */ // ue_context_pP->ue_context.ue_rrc_inactivity_timer = 0; // configure MAC apply_macrlc_config(rrc,ue_context_pP,ctxt_pP); apply_pdcp_config(ue_context_pP,ctxt_pP); #endif } break; default: LOG_W(NR_RRC, "Unknown node type %d\n", rrc->node_type); break; } } //----------------------------------------------------------------------------- void rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest( const protocol_ctxt_t *const ctxt_pP, const int CC_id ) //----------------------------------------------------------------------------- { LOG_I(NR_RRC, "generate RRCSetup for RRCReestablishmentRequest \n"); NR_SRB_ToAddModList_t **SRB_configList = NULL; rrc_gNB_ue_context_t *ue_context_pP = NULL; gNB_RRC_INST *rrc_instance_p = RC.nrrrc[ctxt_pP->module_id]; NR_ServingCellConfigCommon_t *scc=rrc_instance_p->carrier.servingcellconfigcommon; ue_context_pP = rrc_gNB_get_next_free_ue_context(ctxt_pP, rrc_instance_p, 0); gNB_RRC_UE_t *ue_p = &ue_context_pP->ue_context; SRB_configList = &ue_p->SRB_configList; ue_p->Srb0.Tx_buffer.payload_size = do_RRCSetup(ue_context_pP, (uint8_t *) ue_p->Srb0.Tx_buffer.Payload, rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id), NULL, scc); LOG_DUMPMSG(NR_RRC, DEBUG_RRC, (char *)(ue_p->Srb0.Tx_buffer.Payload), ue_p->Srb0.Tx_buffer.payload_size, "[MSG] RRC Setup\n"); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRC_gNB --- MAC_CONFIG_REQ (SRB1) ---> MAC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); rrc_mac_config_req_gNB(rrc_instance_p->module_id, rrc_instance_p->carrier.ssb_SubcarrierOffset, rrc_instance_p->carrier.pdsch_AntennaPorts, rrc_instance_p->carrier.pusch_AntennaPorts, (NR_ServingCellConfigCommon_t *)rrc_instance_p->carrier.servingcellconfigcommon, 0, ue_context_pP->ue_context.rnti, (NR_CellGroupConfig_t *)NULL ); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, ue_p->Srb0.Tx_buffer.Header, // LG WARNING ue_p->Srb0.Tx_buffer.payload_size, MSC_AS_TIME_FMT" RRCSetup UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, ue_p->Srb0.Tx_buffer.payload_size); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel DL-CCCH, Generating RRCSetup (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_p->Srb0.Tx_buffer.payload_size); // activate release timer, if RRCSetupComplete not received after 100 frames, remove UE ue_context_pP->ue_context.ue_release_timer = 1; // remove UE after 10 frames after RRCConnectionRelease is triggered ue_context_pP->ue_context.ue_release_timer_thres = 1000; /* init timers */ // ue_context_pP->ue_context.ue_rrc_inactivity_timer = 0; #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, ue_p->Srb0.Tx_buffer.payload_size); memcpy (message_buffer, (uint8_t*)ue_p->Srb0.Tx_buffer.Payload, ue_p->Srb0.Tx_buffer.payload_size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_CCCH_DATA_IND); GNB_RRC_CCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_CCCH_DATA_IND (message_p).size = ue_p->Srb0.Tx_buffer.payload_size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #endif } void rrc_gNB_generate_RRCReject( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP, const int CC_id ) //----------------------------------------------------------------------------- { LOG_I(NR_RRC, "rrc_gNB_generate_RRCReject \n"); gNB_RRC_UE_t *ue_p = &ue_context_pP->ue_context; MessageDef *message_p; ue_p->Srb0.Tx_buffer.payload_size = do_RRCReject(ctxt_pP->module_id, (uint8_t *)ue_p->Srb0.Tx_buffer.Payload); LOG_DUMPMSG(NR_RRC, DEBUG_RRC, (char *)(ue_p->Srb0.Tx_buffer.Payload), ue_p->Srb0.Tx_buffer.payload_size, "[MSG] RRCReject \n"); MSC_LOG_TX_MESSAGE(MSC_RRC_GNB, MSC_RRC_UE, ue_p->Srb0.Tx_buffer.Header, ue_p->Srb0.Tx_buffer.payload_size, MSC_AS_TIME_FMT" NR_RRCReject UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP == NULL ? -1 : ue_context_pP->ue_context.rnti, ue_p->Srb0.Tx_buffer.payload_size); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel DL-CCCH, Generating NR_RRCReject (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_p->Srb0.Tx_buffer.payload_size); switch (RC.nrrrc[ctxt_pP->module_id]->node_type) { case ngran_gNB_CU: // create an ITTI message message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, F1AP_DL_RRC_MESSAGE); F1AP_DL_RRC_MESSAGE (message_p).rrc_container = (uint8_t *)ue_p->Srb0.Tx_buffer.Payload; F1AP_DL_RRC_MESSAGE (message_p).rrc_container_length = ue_p->Srb0.Tx_buffer.payload_size; F1AP_DL_RRC_MESSAGE (message_p).gNB_CU_ue_id = 0; F1AP_DL_RRC_MESSAGE (message_p).gNB_DU_ue_id = 0; F1AP_DL_RRC_MESSAGE (message_p).old_gNB_DU_ue_id = 0xFFFFFFFF; // unknown F1AP_DL_RRC_MESSAGE (message_p).rnti = ue_p->rnti; F1AP_DL_RRC_MESSAGE (message_p).srb_id = CCCH; F1AP_DL_RRC_MESSAGE (message_p).execute_duplication = 1; F1AP_DL_RRC_MESSAGE (message_p).RAT_frequency_priority_information.en_dc = 0; itti_send_msg_to_task (TASK_CU_F1, ctxt_pP->module_id, message_p); LOG_D(NR_RRC, "Send F1AP_DL_RRC_MESSAGE with ITTI\n"); break; case ngran_gNB_DU: // nothing to do for DU AssertFatal(1==0,"nothing to do for DU\n"); break; case ngran_gNB: { #ifdef ITTI_SIM uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, ue_p->Srb0.Tx_buffer.payload_size); memcpy (message_buffer, (uint8_t*)ue_p->Srb0.Tx_buffer.Payload, ue_p->Srb0.Tx_buffer.payload_size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_CCCH_DATA_IND); GNB_RRC_CCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_CCCH_DATA_IND (message_p).size = ue_p->Srb0.Tx_buffer.payload_size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #endif // rrc_mac_config_req_gNB } break; default : LOG_W(NR_RRC, "Unknown node type %d\n", RC.nrrrc[ctxt_pP->module_id]->node_type); } } //----------------------------------------------------------------------------- /* * Process the rrc setup complete message from UE (SRB1 Active) */ void rrc_gNB_process_RRCSetupComplete( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *ue_context_pP, NR_RRCSetupComplete_IEs_t *rrcSetupComplete ) //----------------------------------------------------------------------------- { LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel UL-DCCH, " "processing NR_RRCSetupComplete from UE (SRB1 Active)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); ue_context_pP->ue_context.Srb1.Active = 1; ue_context_pP->ue_context.Srb1.Srb_info.Srb_id = 1; ue_context_pP->ue_context.Status = NR_RRC_CONNECTED; if (AMF_MODE_ENABLED) { rrc_gNB_send_NGAP_NAS_FIRST_REQ(ctxt_pP, ue_context_pP, rrcSetupComplete); } else { rrc_gNB_generate_SecurityModeCommand(ctxt_pP, ue_context_pP); } } //----------------------------------------------------------------------------- void rrc_gNB_generate_defaultRRCReconfiguration( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *ue_context_pP ) //----------------------------------------------------------------------------- { uint8_t buffer[RRC_BUF_SIZE]; uint16_t size; /*NR_SRB_ToAddModList_t **SRB_configList2 = NULL; NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList; NR_DRB_ToAddModList_t **DRB_configList = NULL; NR_DRB_ToAddModList_t **DRB_configList2 = NULL; NR_SRB_ToAddMod_t *SRB2_config = NULL; NR_DRB_ToAddMod_t *DRB_config = NULL; NR_SDAP_Config_t *sdap_config = NULL;*/ struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList *dedicatedNAS_MessageList = NULL; NR_DedicatedNAS_Message_t *dedicatedNAS_Message = NULL; uint8_t xid = rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id); /******************** Radio Bearer Config ********************/ /* Configure SRB2 */ /*SRB_configList2 = &ue_context_pP->ue_context.SRB_configList2[xid]; if (*SRB_configList2) { free(*SRB_configList2); } *SRB_configList2 = CALLOC(1, sizeof(**SRB_configList2)); memset(*SRB_configList2, 0, sizeof(**SRB_configList2)); SRB2_config = CALLOC(1, sizeof(*SRB2_config)); SRB2_config->srb_Identity = 2; ASN_SEQUENCE_ADD(&(*SRB_configList2)->list, SRB2_config); ASN_SEQUENCE_ADD(&SRB_configList->list, SRB2_config);*/ /* Configure DRB */ /*DRB_configList = &ue_context_pP->ue_context.DRB_configList; if (*DRB_configList) { free(*DRB_configList); } *DRB_configList = CALLOC(1, sizeof(**DRB_configList)); memset(*DRB_configList, 0, sizeof(**DRB_configList)); DRB_configList2 = &ue_context_pP->ue_context.DRB_configList2[xid]; if (*DRB_configList2) { free(*DRB_configList2); } *DRB_configList2 = CALLOC(1, sizeof(**DRB_configList2)); memset(*DRB_configList2, 0, sizeof(**DRB_configList2)); DRB_config = CALLOC(1, sizeof(*DRB_config)); DRB_config->drb_Identity = 1; DRB_config->cnAssociation = CALLOC(1, sizeof(*DRB_config->cnAssociation)); DRB_config->cnAssociation->present = NR_DRB_ToAddMod__cnAssociation_PR_sdap_Config; // TODO sdap_Config sdap_config = CALLOC(1, sizeof(NR_SDAP_Config_t)); memset(sdap_config, 0, sizeof(NR_SDAP_Config_t)); DRB_config->cnAssociation->choice.sdap_Config = sdap_config; // TODO pdcp_Config DRB_config->reestablishPDCP = NULL; DRB_config->recoverPDCP = NULL; DRB_config->pdcp_Config = calloc(1, sizeof(*DRB_config->pdcp_Config)); DRB_config->pdcp_Config->drb = calloc(1,sizeof(*DRB_config->pdcp_Config->drb)); DRB_config->pdcp_Config->drb->discardTimer = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->discardTimer)); *DRB_config->pdcp_Config->drb->discardTimer = NR_PDCP_Config__drb__discardTimer_infinity; DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL)); *DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL = NR_PDCP_Config__drb__pdcp_SN_SizeUL_len18bits; DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL)); *DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL = NR_PDCP_Config__drb__pdcp_SN_SizeDL_len18bits; DRB_config->pdcp_Config->drb->headerCompression.present = NR_PDCP_Config__drb__headerCompression_PR_notUsed; DRB_config->pdcp_Config->drb->headerCompression.choice.notUsed = 0; DRB_config->pdcp_Config->drb->integrityProtection = NULL; DRB_config->pdcp_Config->drb->statusReportRequired = NULL; DRB_config->pdcp_Config->drb->outOfOrderDelivery = NULL; DRB_config->pdcp_Config->moreThanOneRLC = NULL; DRB_config->pdcp_Config->t_Reordering = calloc(1, sizeof(*DRB_config->pdcp_Config->t_Reordering)); *DRB_config->pdcp_Config->t_Reordering = NR_PDCP_Config__t_Reordering_ms0; DRB_config->pdcp_Config->ext1 = NULL; ASN_SEQUENCE_ADD(&(*DRB_configList)->list, DRB_config); ASN_SEQUENCE_ADD(&(*DRB_configList2)->list, DRB_config);*/ dedicatedNAS_MessageList = CALLOC(1, sizeof(struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList)); /* Add all NAS PDUs to the list */ for (int i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) { if (ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer != NULL) { dedicatedNAS_Message = CALLOC(1, sizeof(NR_DedicatedNAS_Message_t)); memset(dedicatedNAS_Message, 0, sizeof(OCTET_STRING_t)); OCTET_STRING_fromBuf(dedicatedNAS_Message, (char *)ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer, ue_context_pP->ue_context.pdusession[i].param.nas_pdu.length); ASN_SEQUENCE_ADD(&dedicatedNAS_MessageList->list, dedicatedNAS_Message); } ue_context_pP->ue_context.pdusession[i].status = PDU_SESSION_STATUS_DONE; LOG_D(NR_RRC, "setting the status for the default DRB (index %d) to (%d,%s)\n", i, ue_context_pP->ue_context.pdusession[i].status, "PDU_SESSION_STATUS_DONE"); } if (ue_context_pP->ue_context.nas_pdu_flag == 1) { dedicatedNAS_Message = CALLOC(1, sizeof(NR_DedicatedNAS_Message_t)); memset(dedicatedNAS_Message, 0, sizeof(OCTET_STRING_t)); OCTET_STRING_fromBuf(dedicatedNAS_Message, (char *)ue_context_pP->ue_context.nas_pdu.buffer, ue_context_pP->ue_context.nas_pdu.length); ASN_SEQUENCE_ADD(&dedicatedNAS_MessageList->list, dedicatedNAS_Message); } /* If list is empty free the list and reset the address */ if (dedicatedNAS_MessageList->list.count == 0) { free(dedicatedNAS_MessageList); dedicatedNAS_MessageList = NULL; } memset(buffer, 0, RRC_BUF_SIZE); size = do_RRCReconfiguration(ctxt_pP, buffer, xid, NULL,//*SRB_configList2, NULL,//*DRB_configList, NULL, NULL, NULL, NULL, dedicatedNAS_MessageList, NULL, NULL); free(ue_context_pP->ue_context.nas_pdu.buffer); LOG_DUMPMSG(NR_RRC, DEBUG_RRC,(char *)buffer, size, "[MSG] RRC Reconfiguration\n"); /* Free all NAS PDUs */ for (int i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) { if (ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer != NULL) { free(ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer); ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer = NULL; } } LOG_I(NR_RRC, "[gNB %d] Frame %d, Logical Channel DL-DCCH, Generate NR_RRCReconfiguration (bytes %d, UE id %x)\n", ctxt_pP->module_id, ctxt_pP->frame, size, ue_context_pP->ue_context.rnti); switch (RC.nrrrc[ctxt_pP->module_id]->node_type) { case ngran_gNB_CU: nr_rrc_data_req(ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); // rrc_pdcp_config_asn1_req break; case ngran_gNB_DU: // nothing to do for DU AssertFatal(1==0,"nothing to do for DU\n"); break; case ngran_gNB: { #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else LOG_D(NR_RRC, "[FRAME %05d][RRC_gNB][MOD %u][][--- PDCP_DATA_REQ/%d Bytes (rrcReconfiguration to UE %x MUI %d) --->][PDCP][MOD %u][RB %u]\n", ctxt_pP->frame, ctxt_pP->module_id, size, ue_context_pP->ue_context.rnti, rrc_gNB_mui, ctxt_pP->module_id, DCCH); MSC_LOG_TX_MESSAGE(MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" NR_RRCReconfiguration UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); nr_rrc_data_req(ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); // rrc_pdcp_config_asn1_req #endif // rrc_rlc_config_asn1_req } break; default : LOG_W(NR_RRC, "Unknown node type %d\n", RC.nrrrc[ctxt_pP->module_id]->node_type); } } //----------------------------------------------------------------------------- void rrc_gNB_generate_dedicatedRRCReconfiguration( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *ue_context_pP ) //----------------------------------------------------------------------------- { NR_DRB_ToAddMod_t *DRB_config = NULL; NR_SRB_ToAddMod_t *SRB2_config = NULL; NR_SDAP_Config_t *sdap_config = NULL; NR_DRB_ToAddModList_t **DRB_configList = NULL; NR_DRB_ToAddModList_t **DRB_configList2 = NULL; NR_SRB_ToAddModList_t **SRB_configList2 = NULL; NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList; struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList *dedicatedNAS_MessageList = NULL; NR_DedicatedNAS_Message_t *dedicatedNAS_Message = NULL; uint8_t buffer[RRC_BUF_SIZE]; uint16_t size; int qos_flow_index = 0; NR_QFI_t qfi = 0; int pdu_sessions_done = 0; int i; NR_CellGroupConfig_t *cellGroupConfig; uint8_t xid = rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id); /* Configure SRB2 */ SRB_configList2 = &ue_context_pP->ue_context.SRB_configList2[xid]; if (*SRB_configList2 == NULL) { *SRB_configList2 = CALLOC(1, sizeof(**SRB_configList2)); memset(*SRB_configList2, 0, sizeof(**SRB_configList2)); SRB2_config = CALLOC(1, sizeof(*SRB2_config)); SRB2_config->srb_Identity = 2; ASN_SEQUENCE_ADD(&(*SRB_configList2)->list, SRB2_config); ASN_SEQUENCE_ADD(&SRB_configList->list, SRB2_config); } DRB_configList = &ue_context_pP->ue_context.DRB_configList; if (*DRB_configList) { free(*DRB_configList); } *DRB_configList = CALLOC(1, sizeof(**DRB_configList)); memset(*DRB_configList, 0, sizeof(**DRB_configList)); DRB_configList2 = &ue_context_pP->ue_context.DRB_configList2[xid]; if (*DRB_configList2) { free(*DRB_configList2); } *DRB_configList2 = CALLOC(1, sizeof(**DRB_configList2)); memset(*DRB_configList2, 0, sizeof(**DRB_configList2)); dedicatedNAS_MessageList = CALLOC(1, sizeof(struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList)); for (i = 0; i < ue_context_pP->ue_context.setup_pdu_sessions; i++) { if (pdu_sessions_done >= ue_context_pP->ue_context.nb_of_pdusessions) { break; } if (ue_context_pP->ue_context.pdusession[i].status >= PDU_SESSION_STATUS_DONE) { continue; } DRB_config = CALLOC(1, sizeof(*DRB_config)); DRB_config->drb_Identity = i+1; DRB_config->cnAssociation = CALLOC(1, sizeof(*DRB_config->cnAssociation)); DRB_config->cnAssociation->present = NR_DRB_ToAddMod__cnAssociation_PR_sdap_Config; // sdap_Config sdap_config = CALLOC(1, sizeof(NR_SDAP_Config_t)); memset(sdap_config, 0, sizeof(NR_SDAP_Config_t)); sdap_config->pdu_Session = ue_context_pP->ue_context.pdusession[i].param.pdusession_id; sdap_config->sdap_HeaderDL = NR_SDAP_Config__sdap_HeaderDL_absent; sdap_config->sdap_HeaderUL = NR_SDAP_Config__sdap_HeaderUL_absent; sdap_config->defaultDRB = TRUE; sdap_config->mappedQoS_FlowsToAdd = calloc(1, sizeof(struct NR_SDAP_Config__mappedQoS_FlowsToAdd)); memset(sdap_config->mappedQoS_FlowsToAdd, 0, sizeof(struct NR_SDAP_Config__mappedQoS_FlowsToAdd)); for (qos_flow_index = 0; qos_flow_index < ue_context_pP->ue_context.pdusession[i].param.nb_qos; qos_flow_index++) { qfi = ue_context_pP->ue_context.pdusession[i].param.qos[qos_flow_index].qfi; ASN_SEQUENCE_ADD(&sdap_config->mappedQoS_FlowsToAdd->list, &qfi); } sdap_config->mappedQoS_FlowsToRelease = NULL; DRB_config->cnAssociation->choice.sdap_Config = sdap_config; // pdcp_Config DRB_config->reestablishPDCP = NULL; DRB_config->recoverPDCP = NULL; DRB_config->pdcp_Config = calloc(1, sizeof(*DRB_config->pdcp_Config)); DRB_config->pdcp_Config->drb = calloc(1,sizeof(*DRB_config->pdcp_Config->drb)); DRB_config->pdcp_Config->drb->discardTimer = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->discardTimer)); *DRB_config->pdcp_Config->drb->discardTimer = NR_PDCP_Config__drb__discardTimer_infinity; DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL)); *DRB_config->pdcp_Config->drb->pdcp_SN_SizeUL = NR_PDCP_Config__drb__pdcp_SN_SizeUL_len18bits; DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL = calloc(1, sizeof(*DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL)); *DRB_config->pdcp_Config->drb->pdcp_SN_SizeDL = NR_PDCP_Config__drb__pdcp_SN_SizeDL_len18bits; DRB_config->pdcp_Config->drb->headerCompression.present = NR_PDCP_Config__drb__headerCompression_PR_notUsed; DRB_config->pdcp_Config->drb->headerCompression.choice.notUsed = 0; DRB_config->pdcp_Config->drb->integrityProtection = NULL; DRB_config->pdcp_Config->drb->statusReportRequired = NULL; DRB_config->pdcp_Config->drb->outOfOrderDelivery = NULL; DRB_config->pdcp_Config->moreThanOneRLC = NULL; DRB_config->pdcp_Config->t_Reordering = calloc(1, sizeof(*DRB_config->pdcp_Config->t_Reordering)); *DRB_config->pdcp_Config->t_Reordering = NR_PDCP_Config__t_Reordering_ms750; DRB_config->pdcp_Config->ext1 = NULL; // Reference TS23501 Table 5.7.4-1: Standardized 5QI to QoS characteristics mapping for (qos_flow_index = 0; qos_flow_index < ue_context_pP->ue_context.pdusession[i].param.nb_qos; qos_flow_index++) { switch (ue_context_pP->ue_context.pdusession[i].param.qos[qos_flow_index].fiveQI) { case 1: //100ms case 2: //150ms case 3: //50ms case 4: //300ms case 5: //100ms case 6: //300ms case 7: //100ms case 8: //300ms case 9: //300ms Video (Buffered Streaming)TCP-based (e.g., www, e-mail, chat, ftp, p2p file sharing, progressive video, etc.) // TODO break; default: LOG_E(NR_RRC,"not supported 5qi %lu\n", ue_context_pP->ue_context.pdusession[i].param.qos[qos_flow_index].fiveQI); ue_context_pP->ue_context.pdusession[i].status = PDU_SESSION_STATUS_FAILED; ue_context_pP->ue_context.pdusession[i].xid = xid; pdu_sessions_done++; free(DRB_config); continue; } } ASN_SEQUENCE_ADD(&(*DRB_configList)->list, DRB_config); ASN_SEQUENCE_ADD(&(*DRB_configList2)->list, DRB_config); ue_context_pP->ue_context.pdusession[i].status = PDU_SESSION_STATUS_DONE; ue_context_pP->ue_context.pdusession[i].xid = xid; if (ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer != NULL) { dedicatedNAS_Message = CALLOC(1, sizeof(NR_DedicatedNAS_Message_t)); memset(dedicatedNAS_Message, 0, sizeof(OCTET_STRING_t)); OCTET_STRING_fromBuf(dedicatedNAS_Message, (char *)ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer, ue_context_pP->ue_context.pdusession[i].param.nas_pdu.length); ASN_SEQUENCE_ADD(&dedicatedNAS_MessageList->list, dedicatedNAS_Message); LOG_I(NR_RRC,"add NAS info with size %d (pdusession id %d)\n",ue_context_pP->ue_context.pdusession[i].param.nas_pdu.length, i); } else { // TODO LOG_E(NR_RRC,"no NAS info (pdusession id %d)\n", i); } } /* If list is empty free the list and reset the address */ if (dedicatedNAS_MessageList->list.count == 0) { free(dedicatedNAS_MessageList); dedicatedNAS_MessageList = NULL; } memset(buffer, 0, RRC_BUF_SIZE); cellGroupConfig = calloc(1, sizeof(NR_CellGroupConfig_t)); fill_mastercellGroupConfig(cellGroupConfig, ue_context_pP->ue_context.masterCellGroup); size = do_RRCReconfiguration(ctxt_pP, buffer, xid, *SRB_configList2, *DRB_configList, NULL, NULL, NULL, NULL, dedicatedNAS_MessageList, NULL, cellGroupConfig); LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size,"[MSG] RRC Reconfiguration\n"); /* Free all NAS PDUs */ for (i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) { if (ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer != NULL) { /* Free the NAS PDU buffer and invalidate it */ free(ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer); ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer = NULL; } } LOG_I(NR_RRC, "[gNB %d] Frame %d, Logical Channel DL-DCCH, Generate RRCReconfiguration (bytes %d, UE RNTI %x)\n", ctxt_pP->module_id, ctxt_pP->frame, size, ue_context_pP->ue_context.rnti); LOG_D(NR_RRC, "[FRAME %05d][RRC_gNB][MOD %u][][--- PDCP_DATA_REQ/%d Bytes (rrcReconfiguration to UE %x MUI %d) --->][PDCP][MOD %u][RB %u]\n", ctxt_pP->frame, ctxt_pP->module_id, size, ue_context_pP->ue_context.rnti, rrc_gNB_mui, ctxt_pP->module_id, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" dedicated RRCReconfiguration UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB_SIM, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB_SIM, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else nr_rrc_data_req( ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); #endif } //----------------------------------------------------------------------------- void rrc_gNB_generate_dedicatedRRCReconfiguration_release( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP, uint8_t xid, uint32_t nas_length, uint8_t *nas_buffer) //----------------------------------------------------------------------------- { uint8_t buffer[RRC_BUF_SIZE]; int i; uint16_t size = 0; NR_DRB_ToReleaseList_t **DRB_Release_configList2 = NULL; NR_DRB_Identity_t *DRB_release; struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList *dedicatedNAS_MessageList = NULL; NR_DedicatedNAS_Message_t *dedicatedNAS_Message = NULL; DRB_Release_configList2 = &ue_context_pP->ue_context.DRB_Release_configList2[xid]; if (*DRB_Release_configList2) { free(*DRB_Release_configList2); } *DRB_Release_configList2 = CALLOC(1, sizeof(**DRB_Release_configList2)); for(i = 0; i < NB_RB_MAX; i++) { if((ue_context_pP->ue_context.pdusession[i].status == PDU_SESSION_STATUS_TORELEASE) && ue_context_pP->ue_context.pdusession[i].xid == xid) { DRB_release = CALLOC(1, sizeof(NR_DRB_Identity_t)); *DRB_release = i+1; ASN_SEQUENCE_ADD(&(*DRB_Release_configList2)->list, DRB_release); } } /* If list is empty free the list and reset the address */ if (nas_length > 0) { dedicatedNAS_MessageList = CALLOC(1, sizeof(struct NR_RRCReconfiguration_v1530_IEs__dedicatedNAS_MessageList)); dedicatedNAS_Message = CALLOC(1, sizeof(NR_DedicatedNAS_Message_t)); memset(dedicatedNAS_Message, 0, sizeof(OCTET_STRING_t)); OCTET_STRING_fromBuf(dedicatedNAS_Message, (char *)nas_buffer, nas_length); ASN_SEQUENCE_ADD(&dedicatedNAS_MessageList->list, dedicatedNAS_Message); LOG_I(NR_RRC,"add NAS info with size %d\n", nas_length); } else { LOG_W(NR_RRC,"dedlicated NAS list is empty\n"); } memset(buffer, 0, RRC_BUF_SIZE); size = do_RRCReconfiguration(ctxt_pP, buffer, xid, NULL, NULL, *DRB_Release_configList2, NULL, NULL, NULL, dedicatedNAS_MessageList, NULL, NULL); ue_context_pP->ue_context.pdu_session_release_command_flag = 1; LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size, "[MSG] RRC Reconfiguration\n"); /* Free all NAS PDUs */ if (nas_length > 0) { /* Free the NAS PDU buffer and invalidate it */ free(nas_buffer); } LOG_I(NR_RRC, "[gNB %d] Frame %d, Logical Channel DL-DCCH, Generate NR_RRCReconfiguration (bytes %d, UE RNTI %x)\n", ctxt_pP->module_id, ctxt_pP->frame, size, ue_context_pP->ue_context.rnti); LOG_D(NR_RRC, "[FRAME %05d][RRC_gNB][MOD %u][][--- PDCP_DATA_REQ/%d Bytes (rrcReconfiguration to UE %x MUI %d) --->][PDCP][MOD %u][RB %u]\n", ctxt_pP->frame, ctxt_pP->module_id, size, ue_context_pP->ue_context.rnti, rrc_gNB_mui, ctxt_pP->module_id, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" dedicated NR_RRCReconfiguration UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else nr_rrc_data_req( ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); #endif } //----------------------------------------------------------------------------- /* * Process the RRC Reconfiguration Complete from the UE */ void rrc_gNB_process_RRCReconfigurationComplete( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *ue_context_pP, const uint8_t xid ) { int drb_id; uint8_t *kRRCenc = NULL; uint8_t *kRRCint = NULL; uint8_t *kUPenc = NULL; NR_DRB_ToAddModList_t *DRB_configList = ue_context_pP->ue_context.DRB_configList2[xid]; NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList2[xid]; NR_DRB_ToReleaseList_t *DRB_Release_configList2 = ue_context_pP->ue_context.DRB_Release_configList2[xid]; NR_DRB_Identity_t *drb_id_p = NULL; // uint8_t nr_DRB2LCHAN[8]; gNB_RRC_INST *rrc = RC.nrrrc[ctxt_pP->module_id]; ue_context_pP->ue_context.ue_reestablishment_timer = 0; #ifndef PHYSIM /* Derive the keys from kgnb */ if (DRB_configList != NULL) { derive_key_up_enc(ue_context_pP->ue_context.ciphering_algorithm, ue_context_pP->ue_context.kgnb, &kUPenc); } derive_key_rrc_enc(ue_context_pP->ue_context.ciphering_algorithm, ue_context_pP->ue_context.kgnb, &kRRCenc); derive_key_rrc_int(ue_context_pP->ue_context.integrity_algorithm, ue_context_pP->ue_context.kgnb, &kRRCint); #endif /* Refresh SRBs/DRBs */ MSC_LOG_TX_MESSAGE(MSC_RRC_GNB, MSC_PDCP_ENB, NULL, 0, MSC_AS_TIME_FMT" CONFIG_REQ UE %x DRB (security unchanged)", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti); #ifndef ITTI_SIM LOG_I(NR_RRC,"Configuring PDCP DRBs/SRBs for UE %x\n",ue_context_pP->ue_context.rnti); nr_rrc_pdcp_config_asn1_req(ctxt_pP, SRB_configList, // NULL, DRB_configList, DRB_Release_configList2, 0, // already configured during the securitymodecommand kRRCenc, kRRCint, kUPenc, NULL, NULL, NULL, ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList); /* Refresh SRBs/DRBs */ if (!NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) { rrc_mac_config_req_gNB(rrc->module_id, rrc->carrier.ssb_SubcarrierOffset, rrc->carrier.pdsch_AntennaPorts, rrc->carrier.pusch_AntennaPorts, NULL, 0, ue_context_pP->ue_context.rnti, ue_context_pP->ue_context.masterCellGroup ); LOG_I(NR_RRC,"Configuring RLC DRBs/SRBs for UE %x\n",ue_context_pP->ue_context.rnti); nr_rrc_rlc_config_asn1_req(ctxt_pP, SRB_configList, // NULL, DRB_configList, DRB_Release_configList2, NULL, ue_context_pP->ue_context.masterCellGroup->rlc_BearerToAddModList, NULL); } #endif /* Set the SRB active in UE context */ if (SRB_configList != NULL) { for (int i = 0; (i < SRB_configList->list.count) && (i < 3); i++) { if (SRB_configList->list.array[i]->srb_Identity == 1) { ue_context_pP->ue_context.Srb1.Active = 1; ue_context_pP->ue_context.Srb1.Srb_info.Srb_id = 1; } else if (SRB_configList->list.array[i]->srb_Identity == 2) { ue_context_pP->ue_context.Srb2.Active = 1; ue_context_pP->ue_context.Srb2.Srb_info.Srb_id = 2; LOG_I(NR_RRC,"[gNB %d] Frame %d CC %d : SRB2 is now active\n", ctxt_pP->module_id, ctxt_pP->frame, ue_context_pP->ue_context.primaryCC_id); } else { LOG_W(NR_RRC,"[gNB %d] Frame %d CC %d : invalide SRB identity %ld\n", ctxt_pP->module_id, ctxt_pP->frame, ue_context_pP->ue_context.primaryCC_id, SRB_configList->list.array[i]->srb_Identity); } } free(SRB_configList); ue_context_pP->ue_context.SRB_configList2[xid] = NULL; } /* Loop through DRBs and establish if necessary */ if (DRB_configList != NULL) { for (int i = 0; i < DRB_configList->list.count; i++) { if (DRB_configList->list.array[i]) { drb_id = (int)DRB_configList->list.array[i]->drb_Identity; LOG_I(NR_RRC, "[gNB %d] Frame %d : Logical Channel UL-DCCH, Received NR_RRCReconfigurationComplete from UE rnti %x, reconfiguring DRB %d\n", ctxt_pP->module_id, ctxt_pP->frame, ctxt_pP->rnti, (int)DRB_configList->list.array[i]->drb_Identity); //(int)*DRB_configList->list.array[i]->pdcp_Config->moreThanOneRLC->primaryPath.logicalChannel); if (ue_context_pP->ue_context.DRB_active[drb_id] == 0) { ue_context_pP->ue_context.DRB_active[drb_id] = 1; LOG_D(NR_RRC, "[gNB %d] Frame %d: Establish RLC UM Bidirectional, DRB %d Active\n", ctxt_pP->module_id, ctxt_pP->frame, (int)DRB_configList->list.array[i]->drb_Identity); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRC_gNB --- MAC_CONFIG_REQ (DRB) ---> MAC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); //if (DRB_configList->list.array[i]->pdcp_Config->moreThanOneRLC->primaryPath.logicalChannel) { // nr_DRB2LCHAN[i] = (uint8_t) * DRB_configList->list.array[i]->pdcp_Config->moreThanOneRLC->primaryPath.logicalChannel; //} // rrc_mac_config_req_eNB } else { // remove LCHAN from MAC/PHY if (ue_context_pP->ue_context.DRB_active[drb_id] == 1) { /* TODO : It may be needed if gNB goes into full stack working. */ // DRB has just been removed so remove RLC + PDCP for DRB /* rrc_pdcp_config_req (ctxt_pP->module_id, frameP, 1, CONFIG_ACTION_REMOVE, (ue_mod_idP * NB_RB_MAX) + DRB2LCHAN[i],UNDEF_SECURITY_MODE); */ /*rrc_rlc_config_req(ctxt_pP, SRB_FLAG_NO, MBMS_FLAG_NO, CONFIG_ACTION_REMOVE, nr_DRB2LCHAN[i], Rlc_info_um);*/ } ue_context_pP->ue_context.DRB_active[drb_id] = 0; LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRC_eNB --- MAC_CONFIG_REQ (DRB) ---> MAC_eNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); // rrc_mac_config_req_eNB } // end else of if (ue_context_pP->ue_context.DRB_active[drb_id] == 0) } // end if (DRB_configList->list.array[i]) } // end for (int i = 0; i < DRB_configList->list.count; i++) free(DRB_configList); ue_context_pP->ue_context.DRB_configList2[xid] = NULL; } // end if DRB_configList != NULL if(DRB_Release_configList2 != NULL) { for (int i = 0; i < DRB_Release_configList2->list.count; i++) { if (DRB_Release_configList2->list.array[i]) { drb_id_p = DRB_Release_configList2->list.array[i]; drb_id = *drb_id_p; if (ue_context_pP->ue_context.DRB_active[drb_id] == 1) { ue_context_pP->ue_context.DRB_active[drb_id] = 0; } } } free(DRB_Release_configList2); ue_context_pP->ue_context.DRB_Release_configList2[xid] = NULL; } } //----------------------------------------------------------------------------- void rrc_gNB_generate_RRCReestablishment( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP, const int CC_id) //----------------------------------------------------------------------------- { // int UE_id = -1; //NR_LogicalChannelConfig_t *SRB1_logicalChannelConfig = NULL; NR_SRB_ToAddModList_t **SRB_configList; // NR_SRB_ToAddMod_t *SRB1_config = NULL; //rrc_gNB_carrier_data_t *carrier = NULL; gNB_RRC_UE_t *ue_context = NULL; module_id_t module_id = ctxt_pP->module_id; // uint16_t rnti = ctxt_pP->rnti; SRB_configList = &(ue_context_pP->ue_context.SRB_configList); //carrier = &(RC.nrrrc[ctxt_pP->module_id]->carrier); ue_context = &(ue_context_pP->ue_context); ue_context->Srb0.Tx_buffer.payload_size = do_RRCReestablishment(ctxt_pP, ue_context_pP, CC_id, (uint8_t *) ue_context->Srb0.Tx_buffer.Payload, //(uint8_t) carrier->p_gNB, // at this point we do not have the UE capability information, so it can only be TM1 or TM2 rrc_gNB_get_next_transaction_identifier(module_id), SRB_configList //&(ue_context->physicalConfigDedicated) ); /* Configure SRB1 for UE */ if (*SRB_configList != NULL) { 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]; } LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRC_gNB --- MAC_CONFIG_REQ (SRB1) ---> MAC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); // rrc_mac_config_req_eNB } } // if (*SRB_configList != NULL) MSC_LOG_TX_MESSAGE(MSC_RRC_GNB, MSC_RRC_UE, ue_context->Srb0.Tx_buffer.Header, ue_context->Srb0.Tx_buffer.payload_size, MSC_AS_TIME_FMT" NR_RRCReestablishment UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context->rnti, ue_context->Srb0.Tx_buffer.payload_size); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel DL-DCCH, Generating NR_RRCReestablishment (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_context->Srb0.Tx_buffer.payload_size); #if(0) /* TODO : It may be needed if gNB goes into full stack working. */ UE_id = find_nr_UE_id(module_id, rnti); if (UE_id != -1) { /* Activate reject timer, if RRCComplete not received after 10 frames, reject UE */ RC.nrmac[module_id]->UE_info.UE_sched_ctrl[UE_id].ue_reestablishment_reject_timer = 1; /* Reject UE after 10 frames, LTE_RRCConnectionReestablishmentReject is triggered */ RC.nrmac[module_id]->UE_info.UE_sched_ctrl[UE_id].ue_reestablishment_reject_timer_thres = 100; } else { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Generating NR_RRCReestablishment without UE_id(MAC) rnti %x\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), rnti); } #endif #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, ue_context->Srb0.Tx_buffer.payload_size); memcpy (message_buffer, (uint8_t *) ue_context->Srb0.Tx_buffer.Payload, ue_context->Srb0.Tx_buffer.payload_size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = ue_context->Srb0.Tx_buffer.payload_size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #endif } //----------------------------------------------------------------------------- void rrc_gNB_process_RRCConnectionReestablishmentComplete( const protocol_ctxt_t *const ctxt_pP, const rnti_t reestablish_rnti, rrc_gNB_ue_context_t *ue_context_pP, const uint8_t xid ) //----------------------------------------------------------------------------- { LOG_I(NR_RRC, PROTOCOL_RRC_CTXT_UE_FMT" [RAPROC] Logical Channel UL-DCCH, processing NR_RRCConnectionReestablishmentComplete from UE (SRB1 Active)\n", PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP)); NR_DRB_ToAddModList_t *DRB_configList = ue_context_pP->ue_context.DRB_configList; NR_SRB_ToAddModList_t *SRB_configList = ue_context_pP->ue_context.SRB_configList; NR_SRB_ToAddModList_t **SRB_configList2 = NULL; NR_DRB_ToAddModList_t **DRB_configList2 = NULL; NR_SRB_ToAddMod_t *SRB2_config = NULL; NR_DRB_ToAddMod_t *DRB_config = NULL; //NR_SDAP_Config_t *sdap_config = NULL; int i = 0; uint8_t buffer[RRC_BUF_SIZE]; uint16_t size; uint8_t next_xid = rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id); int ret = 0; ue_context_pP->ue_context.Status = NR_RRC_CONNECTED; ue_context_pP->ue_context.ue_rrc_inactivity_timer = 1; // set rrc inactivity when UE goes into RRC_CONNECTED ue_context_pP->ue_context.reestablishment_xid = next_xid; SRB_configList2 = &ue_context_pP->ue_context.SRB_configList2[xid]; // get old configuration of SRB2 if (*SRB_configList2 != NULL) { if((*SRB_configList2)->list.count!=0) { LOG_D(NR_RRC, "SRB_configList2(%p) count is %d\n SRB_configList2->list.array[0] addr is %p", SRB_configList2, (*SRB_configList2)->list.count, (*SRB_configList2)->list.array[0]); } for (i = 0; (i < (*SRB_configList2)->list.count) && (i < 3); i++) { if ((*SRB_configList2)->list.array[i]->srb_Identity == 2 ) { LOG_D(NR_RRC, "get SRB2_config from (ue_context_pP->ue_context.SRB_configList2[%d])\n", xid); SRB2_config = (*SRB_configList2)->list.array[i]; break; } } } // SRB2_config = CALLOC(1, sizeof(*SRB2_config)); // SRB2_config->srb_Identity = 2; SRB_configList2 = &(ue_context_pP->ue_context.SRB_configList2[next_xid]); DRB_configList2 = &(ue_context_pP->ue_context.DRB_configList2[next_xid]); if (*SRB_configList2) { free(*SRB_configList2); LOG_D(NR_RRC, "free(ue_context_pP->ue_context.SRB_configList2[%d])\n", next_xid); } *SRB_configList2 = CALLOC(1, sizeof(**SRB_configList2)); if (SRB2_config != NULL) { // Add SRB2 to SRB configuration list ASN_SEQUENCE_ADD(&SRB_configList->list, SRB2_config); ASN_SEQUENCE_ADD(&(*SRB_configList2)->list, SRB2_config); LOG_D(NR_RRC, "Add SRB2_config (srb_Identity:%ld) to ue_context_pP->ue_context.SRB_configList\n", SRB2_config->srb_Identity); LOG_D(NR_RRC, "Add SRB2_config (srb_Identity:%ld) to ue_context_pP->ue_context.SRB_configList2[%d]\n", SRB2_config->srb_Identity, next_xid); } else { // SRB configuration list only contains SRB1. LOG_W(NR_RRC,"SRB2 configuration does not exist in SRB configuration list\n"); } if (*DRB_configList2) { free(*DRB_configList2); LOG_D(NR_RRC, "free(ue_context_pP->ue_context.DRB_configList2[%d])\n", next_xid); } *DRB_configList2 = CALLOC(1, sizeof(**DRB_configList2)); if (DRB_configList != NULL) { LOG_D(NR_RRC, "get DRB_config from (ue_context_pP->ue_context.DRB_configList)\n"); for (i = 0; (i < DRB_configList->list.count) && (i < 3); i++) { DRB_config = DRB_configList->list.array[i]; // Add DRB to DRB configuration list, for LTE_RRCConnectionReconfigurationComplete ASN_SEQUENCE_ADD(&(*DRB_configList2)->list, DRB_config); } } ue_context_pP->ue_context.Srb1.Active = 1; //ue_context_pP->ue_context.Srb2.Srb_info.Srb_id = 2; if (AMF_MODE_ENABLED) { hashtable_rc_t h_rc; int j; rrc_ue_ngap_ids_t *rrc_ue_ngap_ids_p = NULL; uint16_t ue_initial_id = ue_context_pP->ue_context.ue_initial_id; uint32_t gNB_ue_ngap_id = ue_context_pP->ue_context.gNB_ue_ngap_id; gNB_RRC_INST *rrc_instance_p = RC.nrrrc[GNB_INSTANCE_TO_MODULE_ID(ctxt_pP->instance)]; if (gNB_ue_ngap_id > 0) { h_rc = hashtable_get(rrc_instance_p->ngap_id2_ngap_ids, (hash_key_t)gNB_ue_ngap_id, (void **)&rrc_ue_ngap_ids_p); if (h_rc == HASH_TABLE_OK) { rrc_ue_ngap_ids_p->ue_rnti = ctxt_pP->rnti; } } if (ue_initial_id != 0) { h_rc = hashtable_get(rrc_instance_p->initial_id2_ngap_ids, (hash_key_t)ue_initial_id, (void **)&rrc_ue_ngap_ids_p); if (h_rc == HASH_TABLE_OK) { rrc_ue_ngap_ids_p->ue_rnti = ctxt_pP->rnti; } } gtpv1u_gnb_create_tunnel_req_t create_tunnel_req; /* Save e RAB information for later */ memset(&create_tunnel_req, 0, sizeof(create_tunnel_req)); for ( j = 0, i = 0; i < NB_RB_MAX; i++) { if (ue_context_pP->ue_context.pdusession[i].status == PDU_SESSION_STATUS_ESTABLISHED || ue_context_pP->ue_context.pdusession[i].status == PDU_SESSION_STATUS_DONE) { create_tunnel_req.pdusession_id[j] = ue_context_pP->ue_context.pdusession[i].param.pdusession_id; create_tunnel_req.upf_NGu_teid[j] = ue_context_pP->ue_context.pdusession[i].param.gtp_teid; memcpy(create_tunnel_req.upf_addr[j].buffer, ue_context_pP->ue_context.pdusession[i].param.upf_addr.buffer, sizeof(uint8_t)*20); create_tunnel_req.upf_addr[j].length = ue_context_pP->ue_context.pdusession[i].param.upf_addr.length; j++; } } create_tunnel_req.rnti = ctxt_pP->rnti; // warning put zero above create_tunnel_req.num_tunnels = j; ret = gtpv1u_update_ngu_tunnel( ctxt_pP->instance, &create_tunnel_req, reestablish_rnti); if ( ret != 0 ) { LOG_E(NR_RRC,"gtpv1u_update_ngu_tunnel failed,start to release UE %x\n",reestablish_rnti); // update s1u tunnel failed,reset rnti? if (gNB_ue_ngap_id > 0) { h_rc = hashtable_get(rrc_instance_p->ngap_id2_ngap_ids, (hash_key_t)gNB_ue_ngap_id, (void **)&rrc_ue_ngap_ids_p); if (h_rc == HASH_TABLE_OK ) { rrc_ue_ngap_ids_p->ue_rnti = reestablish_rnti; } } if (ue_initial_id != 0) { h_rc = hashtable_get(rrc_instance_p->initial_id2_ngap_ids, (hash_key_t)ue_initial_id, (void **)&rrc_ue_ngap_ids_p); if (h_rc == HASH_TABLE_OK ) { rrc_ue_ngap_ids_p->ue_rnti = reestablish_rnti; } } ue_context_pP->ue_context.ue_release_timer_s1 = 1; ue_context_pP->ue_context.ue_release_timer_thres_s1 = 100; ue_context_pP->ue_context.ue_release_timer = 0; ue_context_pP->ue_context.ue_reestablishment_timer = 0; ue_context_pP->ue_context.ul_failure_timer = 20000; // set ul_failure to 20000 for triggering rrc_eNB_send_S1AP_UE_CONTEXT_RELEASE_REQ ue_context_pP->ue_context.ul_failure_timer = 0; return; } } /* AMF_MODE_ENABLED */ /* Update RNTI in ue_context */ ue_context_pP->ue_id_rnti = ctxt_pP->rnti; // here ue_id_rnti is just a key, may be something else ue_context_pP->ue_context.rnti = ctxt_pP->rnti; if (AMF_MODE_ENABLED) { uint8_t send_security_mode_command = FALSE; nr_rrc_pdcp_config_security( ctxt_pP, ue_context_pP, send_security_mode_command); LOG_D(NR_RRC, "set security successfully \n"); } /* Add all NAS PDUs to the list */ for (i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) { /* TODO parameters yet to process ... */ /* TODO should test if pdu session are Ok before! */ ue_context_pP->ue_context.pdusession[i].status = PDU_SESSION_STATUS_DONE; ue_context_pP->ue_context.pdusession[i].xid = xid; LOG_D(NR_RRC, "setting the status for the default DRB (index %d) to (%d,%s)\n", i, ue_context_pP->ue_context.pdusession[i].status, "PDU_SESSION_STATUS_DONE"); } memset(buffer, 0, RRC_BUF_SIZE); size = do_RRCReconfiguration(ctxt_pP, buffer, xid, *SRB_configList2, DRB_configList, NULL, NULL, NULL, NULL, // MeasObj_list, NULL, NULL, NULL); LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size, "[MSG] RRC Reconfiguration\n"); /* Free all NAS PDUs */ for (i = 0; i < ue_context_pP->ue_context.nb_of_pdusessions; i++) { if (ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer != NULL) { /* Free the NAS PDU buffer and invalidate it */ free(ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer); ue_context_pP->ue_context.pdusession[i].param.nas_pdu.buffer = NULL; } } if(size==65535) { LOG_E(NR_RRC,"RRC decode err!!! do_RRCReconfiguration\n"); return; } else { LOG_I(NR_RRC, "[gNB %d] Frame %d, Logical Channel DL-DCCH, Generate NR_RRCConnectionReconfiguration (bytes %d, UE id %x)\n", ctxt_pP->module_id, ctxt_pP->frame, size, ue_context_pP->ue_context.rnti); LOG_D(NR_RRC, "[FRAME %05d][RRC_gNB][MOD %u][][--- PDCP_DATA_REQ/%d Bytes (rrcConnectionReconfiguration to UE %x MUI %d) --->][PDCP][MOD %u][RB %u]\n", ctxt_pP->frame, ctxt_pP->module_id, size, ue_context_pP->ue_context.rnti, rrc_gNB_mui, ctxt_pP->module_id, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" LTE_RRCConnectionReconfiguration UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else nr_rrc_data_req( ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); #endif } } //----------------------------------------------------------------------------- /*------------------------------------------------------------------------------*/ int nr_rrc_gNB_decode_ccch(protocol_ctxt_t *const ctxt_pP, const uint8_t *buffer, int buffer_length, OCTET_STRING_t *du_to_cu_rrc_container, const int CC_id) { module_id_t Idx; asn_dec_rval_t dec_rval; NR_UL_CCCH_Message_t *ul_ccch_msg = NULL; struct rrc_gNB_ue_context_s *ue_context_p = NULL; gNB_RRC_INST *gnb_rrc_inst = RC.nrrrc[ctxt_pP->module_id]; NR_RRCSetupRequest_IEs_t *rrcSetupRequest = NULL; NR_RRCReestablishmentRequest_IEs_t rrcReestablishmentRequest; uint64_t random_value = 0; int i; dec_rval = uper_decode( NULL, &asn_DEF_NR_UL_CCCH_Message, (void **)&ul_ccch_msg, (uint8_t *) buffer, 100, 0, 0); if (dec_rval.consumed == 0) { /* TODO */ LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" FATAL Error in receiving CCCH\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); return -1; } if (ul_ccch_msg->message.present == NR_UL_CCCH_MessageType_PR_c1) { switch (ul_ccch_msg->message.choice.c1->present) { case NR_UL_CCCH_MessageType__c1_PR_NOTHING: /* TODO */ LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_FMT" Received PR_NOTHING on UL-CCCH-Message\n", PROTOCOL_NR_RRC_CTXT_ARGS(ctxt_pP)); break; case NR_UL_CCCH_MessageType__c1_PR_rrcSetupRequest: LOG_D(NR_RRC, "Received RRCSetupRequest on UL-CCCH-Message (UE rnti %x)\n", ctxt_pP->rnti); ue_context_p = rrc_gNB_get_ue_context(gnb_rrc_inst, ctxt_pP->rnti); if (ue_context_p != NULL) { rrc_gNB_free_mem_UE_context(ctxt_pP, ue_context_p); MSC_LOG_RX_DISCARDED_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, dec_rval.consumed, MSC_AS_TIME_FMT" NR_RRCSetupRequest UE %x size %u (UE already in context)", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, dec_rval.consumed); } else { rrcSetupRequest = &ul_ccch_msg->message.choice.c1->choice.rrcSetupRequest->rrcSetupRequest; if (NR_InitialUE_Identity_PR_randomValue == rrcSetupRequest->ue_Identity.present) { /* randomValue BIT STRING (SIZE (39)) */ if (rrcSetupRequest->ue_Identity.choice.randomValue.size != 5) { // 39-bit random value LOG_E(NR_RRC, "wrong InitialUE-Identity randomValue size, expected 5, provided %lu", (long unsigned int)rrcSetupRequest->ue_Identity.choice.randomValue.size); return -1; } memcpy(((uint8_t *) & random_value) + 3, rrcSetupRequest->ue_Identity.choice.randomValue.buf, rrcSetupRequest->ue_Identity.choice.randomValue.size); /* if there is already a registered UE (with another RNTI) with this random_value, * the current one must be removed from MAC/PHY (zombie UE) */ if ((ue_context_p = rrc_gNB_ue_context_random_exist(RC.nrrrc[ctxt_pP->module_id], random_value))) { LOG_W(NR_RRC, "new UE rnti %x (coming with random value) is already there as UE %x, removing %x from MAC/PHY\n", ctxt_pP->rnti, ue_context_p->ue_context.rnti, ue_context_p->ue_context.rnti); ue_context_p->ue_context.ul_failure_timer = 20000; } ue_context_p = rrc_gNB_get_next_free_ue_context(ctxt_pP, RC.nrrrc[ctxt_pP->module_id], random_value); ue_context_p->ue_context.Srb0.Srb_id = 0; ue_context_p->ue_context.Srb0.Active = 1; memcpy(ue_context_p->ue_context.Srb0.Rx_buffer.Payload, buffer, buffer_length); ue_context_p->ue_context.Srb0.Rx_buffer.payload_size = buffer_length; } else if (NR_InitialUE_Identity_PR_ng_5G_S_TMSI_Part1 == rrcSetupRequest->ue_Identity.present) { /* TODO */ /* <5G-S-TMSI> = <AMF Set ID><AMF Pointer><5G-TMSI> 48-bit */ /* ng-5G-S-TMSI-Part1 BIT STRING (SIZE (39)) */ if (rrcSetupRequest->ue_Identity.choice.ng_5G_S_TMSI_Part1.size != 5) { LOG_E(NR_RRC, "wrong ng_5G_S_TMSI_Part1 size, expected 5, provided %lu \n", (long unsigned int)rrcSetupRequest->ue_Identity.choice.ng_5G_S_TMSI_Part1.size); return -1; } uint64_t s_tmsi_part1 = bitStr_to_uint64(&rrcSetupRequest->ue_Identity.choice.ng_5G_S_TMSI_Part1); // memcpy(((uint8_t *) & random_value) + 3, // rrcSetupRequest->ue_Identity.choice.ng_5G_S_TMSI_Part1.buf, // rrcSetupRequest->ue_Identity.choice.ng_5G_S_TMSI_Part1.size); if ((ue_context_p = rrc_gNB_ue_context_5g_s_tmsi_exist(RC.nrrrc[ctxt_pP->module_id], s_tmsi_part1))) { LOG_I(NR_RRC, " 5G-S-TMSI-Part1 exists, ue_context_p %p, old rnti %x => %x\n",ue_context_p, ue_context_p->ue_context.rnti, ctxt_pP->rnti); nr_rrc_mac_remove_ue(ctxt_pP->module_id, ue_context_p->ue_context.rnti); /* replace rnti in the context */ /* for that, remove the context from the RB tree */ RB_REMOVE(rrc_nr_ue_tree_s, &RC.nrrrc[ctxt_pP->module_id]->rrc_ue_head, ue_context_p); /* and insert again, after changing rnti everywhere it has to be changed */ ue_context_p->ue_id_rnti = ctxt_pP->rnti; ue_context_p->ue_context.rnti = ctxt_pP->rnti; RB_INSERT(rrc_nr_ue_tree_s, &RC.nrrrc[ctxt_pP->module_id]->rrc_ue_head, ue_context_p); /* reset timers */ ue_context_p->ue_context.ul_failure_timer = 0; ue_context_p->ue_context.ue_release_timer = 0; ue_context_p->ue_context.ue_reestablishment_timer = 0; ue_context_p->ue_context.ue_release_timer_s1 = 0; ue_context_p->ue_context.ue_release_timer_rrc = 0; } else { LOG_I(NR_RRC, " 5G-S-TMSI-Part1 doesn't exist, setting ng_5G_S_TMSI_Part1 to %p => %ld\n", ue_context_p, s_tmsi_part1); ue_context_p = rrc_gNB_get_next_free_ue_context(ctxt_pP, RC.nrrrc[ctxt_pP->module_id], s_tmsi_part1); if (ue_context_p == NULL) { LOG_E(RRC, "%s:%d:%s: rrc_gNB_get_next_free_ue_context returned NULL\n", __FILE__, __LINE__, __FUNCTION__); } if (ue_context_p != NULL) { ue_context_p->ue_context.Initialue_identity_5g_s_TMSI.presence = TRUE; ue_context_p->ue_context.ng_5G_S_TMSI_Part1 = s_tmsi_part1; } } } else { /* TODO */ memcpy(((uint8_t *) & random_value) + 3, rrcSetupRequest->ue_Identity.choice.randomValue.buf, rrcSetupRequest->ue_Identity.choice.randomValue.size); rrc_gNB_get_next_free_ue_context(ctxt_pP, RC.nrrrc[ctxt_pP->module_id], random_value); LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRCSetupRequest without random UE identity or S-TMSI not supported, let's reject the UE\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); rrc_gNB_generate_RRCReject(ctxt_pP, rrc_gNB_get_ue_context(gnb_rrc_inst, ctxt_pP->rnti), CC_id); break; } ue_context_p->ue_context.establishment_cause = rrcSetupRequest->establishmentCause; rrc_gNB_generate_RRCSetup(ctxt_pP, rrc_gNB_get_ue_context(gnb_rrc_inst, ctxt_pP->rnti), du_to_cu_rrc_container, gnb_rrc_inst->carrier.servingcellconfigcommon, CC_id); // FIXME: Check the best place to perform this DRB configuration //nr_DRB_preconfiguration(ctxt_pP->rnti); } break; case NR_UL_CCCH_MessageType__c1_PR_rrcResumeRequest: LOG_I(NR_RRC, "receive rrcResumeRequest message \n"); break; case NR_UL_CCCH_MessageType__c1_PR_rrcReestablishmentRequest: LOG_I(NR_RRC, "receive rrcReestablishmentRequest message \n"); LOG_DUMPMSG(NR_RRC, DEBUG_RRC,(char *)(buffer), buffer_length, "[MSG] RRC Reestablishment Request\n"); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT"MAC_gNB--- MAC_DATA_IND (rrcReestablishmentRequest on SRB0) --> RRC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); rrcReestablishmentRequest = ul_ccch_msg->message.choice.c1->choice.rrcReestablishmentRequest->rrcReestablishmentRequest; LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest cause %s\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ((rrcReestablishmentRequest.reestablishmentCause == NR_ReestablishmentCause_otherFailure) ? "Other Failure" : (rrcReestablishmentRequest.reestablishmentCause == NR_ReestablishmentCause_handoverFailure) ? "Handover Failure" : "reconfigurationFailure")); { uint16_t c_rnti = 0; if (rrcReestablishmentRequest.ue_Identity.physCellId != RC.nrrrc[ctxt_pP->module_id]->carrier.physCellId) { /* UE was moving from previous cell so quickly that RRCReestablishment for previous cell was recieved in this cell */ LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest ue_Identity.physCellId(%ld) is not equal to current physCellId(%d), fallback to RRC establishment\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), rrcReestablishmentRequest.ue_Identity.physCellId, RC.nrrrc[ctxt_pP->module_id]->carrier.physCellId); rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest(ctxt_pP, CC_id); break; } LOG_D(NR_RRC, "physCellId is %ld\n", rrcReestablishmentRequest.ue_Identity.physCellId); for (i = 0; i < rrcReestablishmentRequest.ue_Identity.shortMAC_I.size; i++) { LOG_D(NR_RRC, "rrcReestablishmentRequest.ue_Identity.shortMAC_I.buf[%d] = %x\n", i, rrcReestablishmentRequest.ue_Identity.shortMAC_I.buf[i]); } if (rrcReestablishmentRequest.ue_Identity.c_RNTI < 0 || rrcReestablishmentRequest.ue_Identity.c_RNTI > 65535) { /* c_RNTI range error should not happen */ LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest c_RNTI range error, fallback to RRC establishment\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest(ctxt_pP, CC_id); break; } c_rnti = rrcReestablishmentRequest.ue_Identity.c_RNTI; LOG_I(NR_RRC, "c_rnti is %x\n", c_rnti); ue_context_p = rrc_gNB_get_ue_context(gnb_rrc_inst, c_rnti); if (ue_context_p == NULL) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest without UE context, fallback to RRC establishment\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest(ctxt_pP, CC_id); break; } #if(0) /* TODO : It may be needed if gNB goes into full stack working. */ int UE_id = find_nr_UE_id(ctxt_pP->module_id, c_rnti); if(UE_id == -1) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest without UE_id(MAC) rnti %x, fallback to RRC establishment\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),c_rnti); rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest(ctxt_pP, CC_id); break; } //previous rnti rnti_t previous_rnti = 0; for (i = 0; i < MAX_MOBILES_PER_ENB; i++) { if (reestablish_rnti_map[i][1] == c_rnti) { previous_rnti = reestablish_rnti_map[i][0]; break; } } if(previous_rnti != 0) { UE_id = find_nr_UE_id(ctxt_pP->module_id, previous_rnti); if(UE_id == -1) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRCReestablishmentRequest without UE_id(MAC) previous rnti %x, fallback to RRC establishment\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),previous_rnti); rrc_gNB_generate_RRCSetup_for_RRCReestablishmentRequest(ctxt_pP, CC_id); break; } } #endif //c-plane not end if((ue_context_p->ue_context.Status != NR_RRC_RECONFIGURED) && (ue_context_p->ue_context.reestablishment_cause == NR_ReestablishmentCause_spare1)) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCReestablishmentRequest (UE %x c-plane is not end), RRC establishment failed \n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),c_rnti); /* TODO RRC Release ? */ break; } if(ue_context_p->ue_context.ue_reestablishment_timer > 0) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RRRCReconfigurationComplete(Previous) don't receive, delete the Previous UE,\nprevious Status %d, new Status NR_RRC_RECONFIGURED\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_context_p->ue_context.Status ); ue_context_p->ue_context.Status = NR_RRC_RECONFIGURED; protocol_ctxt_t ctxt_old_p; PROTOCOL_CTXT_SET_BY_INSTANCE(&ctxt_old_p, ctxt_pP->instance, GNB_FLAG_YES, c_rnti, ctxt_pP->frame, ctxt_pP->subframe); rrc_gNB_process_RRCReconfigurationComplete(&ctxt_old_p, ue_context_p, ue_context_p->ue_context.reestablishment_xid); for (uint8_t pdusessionid = 0; pdusessionid < ue_context_p->ue_context.nb_of_pdusessions; pdusessionid++) { if (ue_context_p->ue_context.pdusession[pdusessionid].status == PDU_SESSION_STATUS_DONE) { ue_context_p->ue_context.pdusession[pdusessionid].status = PDU_SESSION_STATUS_ESTABLISHED; } else { ue_context_p->ue_context.pdusession[pdusessionid].status = PDU_SESSION_STATUS_FAILED; } } } LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" UE context: %p\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), ue_context_p); /* reset timers */ ue_context_p->ue_context.ul_failure_timer = 0; ue_context_p->ue_context.ue_release_timer = 0; ue_context_p->ue_context.ue_reestablishment_timer = 0; // ue_context_p->ue_context.ue_release_timer_s1 = 0; ue_context_p->ue_context.ue_release_timer_rrc = 0; ue_context_p->ue_context.reestablishment_xid = -1; // insert C-RNTI to map for (i = 0; i < MAX_MOBILES_PER_ENB; i++) { if (reestablish_rnti_map[i][0] == 0) { reestablish_rnti_map[i][0] = ctxt_pP->rnti; reestablish_rnti_map[i][1] = c_rnti; LOG_D(NR_RRC, "reestablish_rnti_map[%d] [0] %x, [1] %x\n", i, reestablish_rnti_map[i][0], reestablish_rnti_map[i][1]); break; } } ue_context_p->ue_context.reestablishment_cause = rrcReestablishmentRequest.reestablishmentCause; LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Accept reestablishment request from UE physCellId %ld cause %ld\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), rrcReestablishmentRequest.ue_Identity.physCellId, ue_context_p->ue_context.reestablishment_cause); ue_context_p->ue_context.primaryCC_id = CC_id; //LG COMMENT Idx = (ue_mod_idP * NB_RB_MAX) + DCCH; Idx = DCCH; // SRB1 ue_context_p->ue_context.Srb1.Active = 1; ue_context_p->ue_context.Srb1.Srb_info.Srb_id = Idx; memcpy(&ue_context_p->ue_context.Srb1.Srb_info.Lchan_desc[0], &DCCH_LCHAN_DESC, LCHAN_DESC_SIZE); memcpy(&ue_context_p->ue_context.Srb1.Srb_info.Lchan_desc[1], &DCCH_LCHAN_DESC, LCHAN_DESC_SIZE); // SRB2: set it to go through SRB1 with id 1 (DCCH) ue_context_p->ue_context.Srb2.Active = 1; ue_context_p->ue_context.Srb2.Srb_info.Srb_id = Idx; memcpy(&ue_context_p->ue_context.Srb2.Srb_info.Lchan_desc[0], &DCCH_LCHAN_DESC, LCHAN_DESC_SIZE); memcpy(&ue_context_p->ue_context.Srb2.Srb_info.Lchan_desc[1], &DCCH_LCHAN_DESC, LCHAN_DESC_SIZE); rrc_gNB_generate_RRCReestablishment(ctxt_pP, ue_context_p, CC_id); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT"CALLING RLC CONFIG SRB1 (rbid %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), Idx); MSC_LOG_TX_MESSAGE(MSC_RRC_GNB, MSC_PDCP_GNB, NULL, 0, MSC_AS_TIME_FMT" CONFIG_REQ UE %x SRB", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti); // nr_rrc_pdcp_config_asn1_req(ctxt_pP, // ue_context_p->ue_context.SRB_configList, // NULL, // NULL, // 0xff, // NULL, // NULL, // NULL, // NULL, // NULL, // NULL, // NULL); // if (!NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) { // nr_rrc_rlc_config_asn1_req(ctxt_pP, // ue_context_p->ue_context.SRB_configList, // NULL, // NULL, // NULL, // NULL); // } } break; case NR_UL_CCCH_MessageType__c1_PR_rrcSystemInfoRequest: LOG_I(NR_RRC, "receive rrcSystemInfoRequest message \n"); /* TODO */ break; default: LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Unknown message\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); break; } } return 0; } /*! \fn uint64_t bitStr_to_uint64(BIT_STRING_t *) *\brief This function extract at most a 64 bits value from a BIT_STRING_t object, the exact bits number depend on the BIT_STRING_t contents. *\param[in] pointer to the BIT_STRING_t object. *\return the extracted value. */ static inline uint64_t bitStr_to_uint64(BIT_STRING_t *asn) { uint64_t result = 0; int index; int shift; DevCheck ((asn->size > 0) && (asn->size <= 8), asn->size, 0, 0); shift = ((asn->size - 1) * 8) - asn->bits_unused; for (index = 0; index < (asn->size - 1); index++) { result |= (uint64_t)asn->buf[index] << shift; shift -= 8; } result |= asn->buf[index] >> asn->bits_unused; return result; } //----------------------------------------------------------------------------- int rrc_gNB_decode_dcch( const protocol_ctxt_t *const ctxt_pP, const rb_id_t Srb_id, const uint8_t *const Rx_sdu, const sdu_size_t sdu_sizeP ) //----------------------------------------------------------------------------- { asn_dec_rval_t dec_rval; NR_UL_DCCH_Message_t *ul_dcch_msg = NULL; struct rrc_gNB_ue_context_s *ue_context_p = NULL; MessageDef *msg_delete_tunnels_p = NULL; uint8_t xid; int i; if ((Srb_id != 1) && (Srb_id != 2)) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Received message on SRB%ld, should not have ...\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), Srb_id); } else { LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Received message on SRB%ld\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), Srb_id); } LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Decoding UL-DCCH Message\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); for (int i=0;i<sdu_sizeP;i++) printf("%02x ",Rx_sdu[i]); printf("\n"); dec_rval = uper_decode( NULL, &asn_DEF_NR_UL_DCCH_Message, (void **)&ul_dcch_msg, Rx_sdu, sdu_sizeP, 0, 0); xer_fprint(stdout, &asn_DEF_NR_UL_DCCH_Message, (void *)ul_dcch_msg); { for (i = 0; i < sdu_sizeP; i++) { LOG_T(NR_RRC, "%x.", Rx_sdu[i]); } LOG_T(NR_RRC, "\n"); } if ((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Failed to decode UL-DCCH (%zu bytes)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), dec_rval.consumed); return -1; } ue_context_p = rrc_gNB_get_ue_context(RC.nrrrc[ctxt_pP->module_id], ctxt_pP->rnti); if (ul_dcch_msg->message.present == NR_UL_DCCH_MessageType_PR_c1) { switch (ul_dcch_msg->message.choice.c1->present) { case NR_UL_DCCH_MessageType__c1_PR_NOTHING: LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_FMT" Received PR_NOTHING on UL-DCCH-Message\n", PROTOCOL_NR_RRC_CTXT_ARGS(ctxt_pP)); break; case NR_UL_DCCH_MessageType__c1_PR_rrcReconfigurationComplete: LOG_I(NR_RRC, "Receive RRC Reconfiguration Complete message UE %x\n", ctxt_pP->rnti); if(!ue_context_p) { LOG_E(NR_RRC, "Processing NR_RRCReconfigurationComplete UE %x, ue_context_p is NULL\n", ctxt_pP->rnti); break; } LOG_DUMPMSG(NR_RRC, DEBUG_RRC, (char *)(Rx_sdu), sdu_sizeP, "[MSG] RRC Connection Reconfiguration Complete\n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" NR_RRCReconfigurationComplete UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(RRCReconfigurationComplete) ---> RRC_gNB]\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); if (ul_dcch_msg->message.choice.c1->present == NR_UL_DCCH_MessageType__c1_PR_rrcReconfigurationComplete) { if (ul_dcch_msg->message.choice.c1->choice.rrcReconfigurationComplete->criticalExtensions.present == NR_RRCReconfigurationComplete__criticalExtensions_PR_rrcReconfigurationComplete) rrc_gNB_process_RRCReconfigurationComplete( ctxt_pP, ue_context_p, ul_dcch_msg->message.choice.c1->choice.rrcReconfigurationComplete->rrc_TransactionIdentifier); } if (AMF_MODE_ENABLED) { if(ue_context_p->ue_context.pdu_session_release_command_flag == 1) { xid = ul_dcch_msg->message.choice.c1->choice.rrcReconfigurationComplete->rrc_TransactionIdentifier; ue_context_p->ue_context.pdu_session_release_command_flag = 0; //gtp tunnel delete msg_delete_tunnels_p = itti_alloc_new_message(TASK_RRC_GNB, 0, GTPV1U_GNB_DELETE_TUNNEL_REQ); memset(>PV1U_GNB_DELETE_TUNNEL_REQ(msg_delete_tunnels_p), 0, sizeof(GTPV1U_GNB_DELETE_TUNNEL_REQ(msg_delete_tunnels_p))); GTPV1U_GNB_DELETE_TUNNEL_REQ(msg_delete_tunnels_p).rnti = ue_context_p->ue_context.rnti; for(i = 0; i < NB_RB_MAX; i++) { if(xid == ue_context_p->ue_context.pdusession[i].xid) { GTPV1U_GNB_DELETE_TUNNEL_REQ(msg_delete_tunnels_p).pdusession_id[GTPV1U_GNB_DELETE_TUNNEL_REQ(msg_delete_tunnels_p).num_pdusession++] = ue_context_p->ue_context.gnb_gtp_psi[i]; ue_context_p->ue_context.gnb_gtp_teid[i] = 0; memset(&ue_context_p->ue_context.gnb_gtp_addrs[i], 0, sizeof(ue_context_p->ue_context.gnb_gtp_addrs[i])); ue_context_p->ue_context.gnb_gtp_psi[i] = 0; } } itti_send_msg_to_task(TASK_GTPV1_U, ctxt_pP->instance, msg_delete_tunnels_p); //NGAP_PDUSESSION_RELEASE_RESPONSE rrc_gNB_send_NGAP_PDUSESSION_RELEASE_RESPONSE(ctxt_pP, ue_context_p, xid); } else if (ue_context_p->ue_context.established_pdu_sessions_flag != 1) { if (ue_context_p->ue_context.setup_pdu_sessions > 0) { rrc_gNB_send_NGAP_PDUSESSION_SETUP_RESP(ctxt_pP, ue_context_p, ul_dcch_msg->message.choice.c1->choice.rrcReconfigurationComplete->rrc_TransactionIdentifier); } } } if (first_rrcreconfiguration == 0){ first_rrcreconfiguration = 1; rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_RESP(ctxt_pP, ue_context_p); } break; case NR_UL_DCCH_MessageType__c1_PR_rrcSetupComplete: if(!ue_context_p) { LOG_I(NR_RRC, "Processing NR_RRCSetupComplete UE %x, ue_context_p is NULL\n", ctxt_pP->rnti); break; } LOG_DUMPMSG(NR_RRC, DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP, "[MSG] RRC SetupComplete\n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" NR_RRCSetupComplete UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(RRCSetupComplete) ---> RRC_gNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.present == NR_RRCSetupComplete__criticalExtensions_PR_rrcSetupComplete) { if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice. rrcSetupComplete->ng_5G_S_TMSI_Value != NULL) { if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice. rrcSetupComplete->ng_5G_S_TMSI_Value->present == NR_RRCSetupComplete_IEs__ng_5G_S_TMSI_Value_PR_ng_5G_S_TMSI_Part2) { // ng-5G-S-TMSI-Part2 BIT STRING (SIZE (9)) if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice. rrcSetupComplete->ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI_Part2.size != 2) { LOG_E(NR_RRC, "wrong ng_5G_S_TMSI_Part2 size, expected 2, provided %lu", (long unsigned int)ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete-> criticalExtensions.choice.rrcSetupComplete-> ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI_Part2.size); return -1; } if (ue_context_p->ue_context.ng_5G_S_TMSI_Part1 != 0) { ue_context_p->ue_context.ng_5G_S_TMSI_Part2 = BIT_STRING_to_uint16(&ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete-> criticalExtensions.choice.rrcSetupComplete-> ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI_Part2); } /* TODO */ } else if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice. rrcSetupComplete->ng_5G_S_TMSI_Value->present == NR_RRCSetupComplete_IEs__ng_5G_S_TMSI_Value_PR_ng_5G_S_TMSI) { // NG-5G-S-TMSI ::= BIT STRING (SIZE (48)) if (ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice. rrcSetupComplete->ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI.size != 6) { LOG_E(NR_RRC, "wrong ng_5G_S_TMSI size, expected 6, provided %lu", (long unsigned int)ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete-> criticalExtensions.choice.rrcSetupComplete-> ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI.size); return -1; } uint64_t fiveg_s_TMSI = bitStr_to_uint64(&ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete-> criticalExtensions.choice.rrcSetupComplete->ng_5G_S_TMSI_Value->choice.ng_5G_S_TMSI); LOG_I(NR_RRC, "Received rrcSetupComplete, 5g_s_TMSI: 0x%lX, amf_set_id: 0x%lX(%ld), amf_pointer: 0x%lX(%ld), 5g TMSI: 0x%X \n", fiveg_s_TMSI, fiveg_s_TMSI >> 38, fiveg_s_TMSI >> 38, (fiveg_s_TMSI >> 32) & 0x3F, (fiveg_s_TMSI >> 32) & 0x3F, (uint32_t)fiveg_s_TMSI); if (ue_context_p->ue_context.Initialue_identity_5g_s_TMSI.presence == TRUE) { ue_context_p->ue_context.Initialue_identity_5g_s_TMSI.amf_set_id = fiveg_s_TMSI >> 38; ue_context_p->ue_context.Initialue_identity_5g_s_TMSI.amf_pointer = (fiveg_s_TMSI >> 32) & 0x3F; ue_context_p->ue_context.Initialue_identity_5g_s_TMSI.fiveg_tmsi = (uint32_t)fiveg_s_TMSI; } } } rrc_gNB_process_RRCSetupComplete( ctxt_pP, ue_context_p, ul_dcch_msg->message.choice.c1->choice.rrcSetupComplete->criticalExtensions.choice.rrcSetupComplete); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" UE State = NR_RRC_CONNECTED \n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); } ue_context_p->ue_context.ue_release_timer = 0; break; case NR_UL_DCCH_MessageType__c1_PR_ulInformationTransfer: LOG_I(NR_RRC,"Recived RRC GNB UL Information Transfer \n"); if(!ue_context_p) { LOG_I(NR_RRC, "Processing ulInformationTransfer UE %x, ue_context_p is NULL\n", ctxt_pP->rnti); break; } LOG_D(NR_RRC,"[MSG] RRC UL Information Transfer \n"); LOG_DUMPMSG(RRC,DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP, "[MSG] RRC UL Information Transfer \n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" ulInformationTransfer UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); if (AMF_MODE_ENABLED == 1) { rrc_gNB_send_NGAP_UPLINK_NAS(ctxt_pP, ue_context_p, ul_dcch_msg); } break; case NR_UL_DCCH_MessageType__c1_PR_securityModeComplete: // to avoid segmentation fault if(!ue_context_p) { LOG_I(NR_RRC, "Processing securityModeComplete UE %x, ue_context_p is NULL\n", ctxt_pP->rnti); break; } LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" received securityModeComplete on UL-DCCH %d from UE\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(securityModeComplete) ---> RRC_eNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) { xer_fprint(stdout, &asn_DEF_NR_UL_DCCH_Message, (void *)ul_dcch_msg); } rrc_gNB_generate_UECapabilityEnquiry(ctxt_pP, ue_context_p); //rrc_gNB_generate_defaultRRCReconfiguration(ctxt_pP, ue_context_p); break; case NR_UL_DCCH_MessageType__c1_PR_securityModeFailure: LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP, "[MSG] NR RRC Security Mode Failure\n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" securityModeFailure UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); LOG_W(NR_RRC, PROTOCOL_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(securityModeFailure) ---> RRC_gNB\n", PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) { xer_fprint(stdout, &asn_DEF_NR_UL_DCCH_Message, (void *)ul_dcch_msg); } rrc_gNB_generate_UECapabilityEnquiry(ctxt_pP, ue_context_p); break; case NR_UL_DCCH_MessageType__c1_PR_ueCapabilityInformation: if(!ue_context_p) { LOG_I(NR_RRC, "Processing ueCapabilityInformation UE %x, ue_context_p is NULL\n", ctxt_pP->rnti); break; } LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP, "[MSG] NR_RRC UECapablility Information\n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" ueCapabilityInformation UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" received ueCapabilityInformation on UL-DCCH %d from UE\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH); LOG_D(RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(UECapabilityInformation) ---> RRC_eNB\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) { xer_fprint(stdout, &asn_DEF_NR_UL_DCCH_Message, (void *)ul_dcch_msg); } LOG_I(NR_RRC, "got UE capabilities for UE %x\n", ctxt_pP->rnti); int eutra_index = -1; if( ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.present == NR_UECapabilityInformation__criticalExtensions_PR_ueCapabilityInformation ) { for(i = 0;i < ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.count; i++){ if(ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->rat_Type == NR_RAT_Type_nr){ if(ue_context_p->ue_context.UE_Capability_nr){ ASN_STRUCT_FREE(asn_DEF_NR_UE_NR_Capability,ue_context_p->ue_context.UE_Capability_nr); ue_context_p->ue_context.UE_Capability_nr = 0; } dec_rval = uper_decode(NULL, &asn_DEF_NR_UE_NR_Capability, (void**)&ue_context_p->ue_context.UE_Capability_nr, ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.buf, ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.size, 0,0); if(LOG_DEBUGFLAG(DEBUG_ASN1)){ xer_fprint(stdout,&asn_DEF_NR_UE_NR_Capability,ue_context_p->ue_context.UE_Capability_nr); } if((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)){ LOG_E(NR_RRC,PROTOCOL_NR_RRC_CTXT_UE_FMT" Failed to decode nr UE capabilities (%zu bytes)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),dec_rval.consumed); ASN_STRUCT_FREE(asn_DEF_NR_UE_NR_Capability,ue_context_p->ue_context.UE_Capability_nr); ue_context_p->ue_context.UE_Capability_nr = 0; } ue_context_p->ue_context.UE_Capability_size = ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.size; if(eutra_index != -1){ LOG_E(NR_RRC,"fatal: more than 1 eutra capability\n"); exit(1); } eutra_index = i; } if(ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->rat_Type == NR_RAT_Type_eutra_nr){ if(ue_context_p->ue_context.UE_Capability_MRDC){ ASN_STRUCT_FREE(asn_DEF_NR_UE_MRDC_Capability,ue_context_p->ue_context.UE_Capability_MRDC); ue_context_p->ue_context.UE_Capability_MRDC = 0; } dec_rval = uper_decode(NULL, &asn_DEF_NR_UE_MRDC_Capability, (void**)&ue_context_p->ue_context.UE_Capability_MRDC, ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.buf, ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.size, 0,0); if(LOG_DEBUGFLAG(DEBUG_ASN1)){ xer_fprint(stdout,&asn_DEF_NR_UE_MRDC_Capability,ue_context_p->ue_context.UE_Capability_MRDC); } if((dec_rval.code != RC_OK) && (dec_rval.consumed == 0)){ LOG_E(NR_RRC,PROTOCOL_NR_RRC_CTXT_FMT" Failed to decode nr UE capabilities (%zu bytes)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP),dec_rval.consumed); ASN_STRUCT_FREE(asn_DEF_NR_UE_MRDC_Capability,ue_context_p->ue_context.UE_Capability_MRDC); ue_context_p->ue_context.UE_Capability_MRDC = 0; } ue_context_p->ue_context.UE_MRDC_Capability_size = ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->ue_CapabilityRAT_Container.size; } if(ul_dcch_msg->message.choice.c1->choice.ueCapabilityInformation->criticalExtensions.choice.ueCapabilityInformation->ue_CapabilityRAT_ContainerList->list.array[i]->rat_Type == NR_RAT_Type_eutra){ //TODO } } if(eutra_index == -1) break; } if (AMF_MODE_ENABLED == 1) { rrc_gNB_send_NGAP_UE_CAPABILITIES_IND(ctxt_pP, ue_context_p, ul_dcch_msg); } if (ue_context_p->ue_context.established_pdu_sessions_flag == 1) { rrc_gNB_generate_dedicatedRRCReconfiguration(ctxt_pP, ue_context_p); } else { rrc_gNB_generate_defaultRRCReconfiguration(ctxt_pP, ue_context_p); } break; case NR_UL_DCCH_MessageType__c1_PR_rrcReestablishmentComplete: LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)Rx_sdu,sdu_sizeP, "[MSG] NR_RRC Connection Reestablishment Complete\n"); MSC_LOG_RX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, Rx_sdu, sdu_sizeP, MSC_AS_TIME_FMT" NR_RRCConnectionReestablishmentComplete UE %x size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_p->ue_context.rnti, sdu_sizeP); LOG_I(NR_RRC, PROTOCOL_RRC_CTXT_UE_FMT" RLC RB %02d --- RLC_DATA_IND %d bytes " "(rrcConnectionReestablishmentComplete) ---> RRC_gNB\n", PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP), DCCH, sdu_sizeP); { rnti_t reestablish_rnti = 0; // select C-RNTI from map for (i = 0; i < MAX_MOBILES_PER_ENB; i++) { if (reestablish_rnti_map[i][0] == ctxt_pP->rnti) { reestablish_rnti = reestablish_rnti_map[i][1]; ue_context_p = rrc_gNB_get_ue_context( RC.nrrrc[ctxt_pP->module_id], reestablish_rnti); // clear currentC-RNTI from map reestablish_rnti_map[i][0] = 0; reestablish_rnti_map[i][1] = 0; LOG_D(NR_RRC, "reestablish_rnti_map[%d] [0] %x, [1] %x\n", i, reestablish_rnti_map[i][0], reestablish_rnti_map[i][1]); break; } } if (!ue_context_p) { LOG_E(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" NR_RRCConnectionReestablishmentComplete without UE context, falt\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP)); break; } #if(0) /* TODO : It may be needed if gNB goes into full stack working. */ //clear int UE_id = find_nr_UE_id(ctxt_pP->module_id, ctxt_pP->rnti); if(UE_id == -1) { LOG_E(NR_RRC, PROTOCOL_RRC_CTXT_UE_FMT" NR_RRCConnectionReestablishmentComplete without UE_id(MAC) rnti %x, fault\n", PROTOCOL_RRC_CTXT_UE_ARGS(ctxt_pP),ctxt_pP->rnti); break; } RC.nrmac[ctxt_pP->module_id]->UE_info.UE_sched_ctrl[UE_id].ue_reestablishment_reject_timer = 0; #endif ue_context_p->ue_context.reestablishment_xid = -1; if (ul_dcch_msg->message.choice.c1->choice.rrcReestablishmentComplete->criticalExtensions.present == NR_RRCReestablishmentComplete__criticalExtensions_PR_rrcReestablishmentComplete) { rrc_gNB_process_RRCConnectionReestablishmentComplete(ctxt_pP, reestablish_rnti, ue_context_p, ul_dcch_msg->message.choice.c1->choice.rrcReestablishmentComplete->rrc_TransactionIdentifier); } //ue_context_p->ue_context.ue_release_timer = 0; ue_context_p->ue_context.ue_reestablishment_timer = 1; // remove UE after 100 frames after LTE_RRCConnectionReestablishmentRelease is triggered ue_context_p->ue_context.ue_reestablishment_timer_thres = 1000; } break; default: break; } } return 0; } void rrc_gNB_process_f1_setup_req(f1ap_setup_req_t *f1_setup_req) { LOG_I(NR_RRC,"Received F1 Setup Request from gNB_DU %llu (%s)\n",(unsigned long long int)f1_setup_req->gNB_DU_id,f1_setup_req->gNB_DU_name); int cu_cell_ind = 0; MessageDef *msg_p = NULL,*msg_p2=NULL; for (int i = 0; i < f1_setup_req->num_cells_available; i++) { int found_cell=0; for (int j=0; j<RC.nb_nr_inst; j++) { gNB_RRC_INST *rrc = RC.nrrrc[j]; if (rrc->configuration.mcc[0] == f1_setup_req->mcc[i] && rrc->configuration.mnc[0] == f1_setup_req->mnc[i] && rrc->nr_cellid == f1_setup_req->nr_cellid[i]) { // check that CU rrc instance corresponds to mcc/mnc/cgi (normally cgi should be enough, but just in case) rrc->carrier.MIB = malloc(f1_setup_req->mib_length[i]); rrc->carrier.sizeof_MIB = f1_setup_req->mib_length[i]; LOG_W(NR_RRC, "instance %d mib length %d\n", i, f1_setup_req->mib_length[i]); LOG_W(NR_RRC, "instance %d sib1 length %d\n", i, f1_setup_req->sib1_length[i]); memcpy((void *)rrc->carrier.MIB,f1_setup_req->mib[i],f1_setup_req->mib_length[i]); asn_dec_rval_t dec_rval = uper_decode_complete(NULL, &asn_DEF_NR_BCCH_BCH_Message, (void **)&rrc->carrier.mib_DU, f1_setup_req->mib[i], f1_setup_req->mib_length[i]); AssertFatal(dec_rval.code == RC_OK, "[gNB_DU %"PRIu8"] Failed to decode NR_BCCH_BCH_MESSAGE (%zu bits)\n", j, dec_rval.consumed ); NR_BCCH_BCH_Message_t *mib = &rrc->carrier.mib; NR_BCCH_BCH_Message_t *mib_DU = rrc->carrier.mib_DU; mib->message.present = NR_BCCH_BCH_MessageType_PR_mib; mib->message.choice.mib = CALLOC(1,sizeof(struct NR_MIB)); memset(mib->message.choice.mib,0,sizeof(struct NR_MIB)); memcpy(mib->message.choice.mib, mib_DU->message.choice.mib, sizeof(struct NR_MIB)); rrc->carrier.SIB1 = malloc(f1_setup_req->sib1_length[i]); rrc->carrier.sizeof_SIB1 = f1_setup_req->sib1_length[i]; memcpy((void *)rrc->carrier.SIB1,f1_setup_req->sib1[i],f1_setup_req->sib1_length[i]); dec_rval = uper_decode_complete(NULL, &asn_DEF_NR_BCCH_DL_SCH_Message, (void **)&rrc->carrier.siblock1_DU, f1_setup_req->sib1[i], f1_setup_req->sib1_length[i]); AssertFatal(dec_rval.code == RC_OK, "[gNB_DU %"PRIu8"] Failed to decode NR_BCCH_DLSCH_MESSAGE (%zu bits)\n", j, dec_rval.consumed ); // Parse message and extract SystemInformationBlockType1 field NR_BCCH_DL_SCH_Message_t *bcch_message = rrc->carrier.siblock1_DU; AssertFatal(bcch_message->message.present == NR_BCCH_DL_SCH_MessageType_PR_c1, "bcch_message->message.present != NR_BCCH_DL_SCH_MessageType_PR_c1\n"); AssertFatal(bcch_message->message.choice.c1->present == NR_BCCH_DL_SCH_MessageType__c1_PR_systemInformationBlockType1, "bcch_message->message.choice.c1->present != NR_BCCH_DL_SCH_MessageType__c1_PR_systemInformationBlockType1\n"); rrc->carrier.sib1 = bcch_message->message.choice.c1->choice.systemInformationBlockType1; rrc->carrier.physCellId = f1_setup_req->nr_pci[i]; if (cu_cell_ind == 0) { // prepare F1_SETUP_RESPONSE + GNB_CU_CONFIGURATION_UPDATE if (msg_p == NULL) { msg_p = itti_alloc_new_message (TASK_RRC_GNB, 0, F1AP_SETUP_RESP); } if (msg_p2 == NULL) { msg_p2 = itti_alloc_new_message (TASK_RRC_GNB, 0, F1AP_GNB_CU_CONFIGURATION_UPDATE); } F1AP_SETUP_RESP (msg_p).gNB_CU_name = rrc->node_name; F1AP_SETUP_RESP (msg_p).num_cells_to_activate = 0; } F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).gNB_CU_name = rrc->node_name; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].mcc = rrc->configuration.mcc[0]; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].mnc = rrc->configuration.mnc[0]; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].mnc_digit_length = rrc->configuration.mnc_digit_length[0]; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].nr_cellid = rrc->nr_cellid; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].nrpci = f1_setup_req->nr_pci[i]; int num_SI= 0; if (rrc->carrier.SIB23) { F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].SI_container[2] = rrc->carrier.SIB23; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].SI_container_length[2] = rrc->carrier.sizeof_SIB23; num_SI++; } F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).cells_to_activate[cu_cell_ind].num_SI = num_SI; cu_cell_ind++; found_cell=1; F1AP_GNB_CU_CONFIGURATION_UPDATE (msg_p2).num_cells_to_activate = cu_cell_ind; // send break; } else {// setup_req mcc/mnc match rrc internal list element LOG_W(NR_RRC,"[Inst %d] No matching MCC/MNC: rrc->mcc/f1_setup_req->mcc %d/%d rrc->mnc/f1_setup_req->mnc %d/%d rrc->nr_cellid/f1_setup_req->nr_cellid %ld/%ld \n", j, rrc->configuration.mcc[0], f1_setup_req->mcc[i], rrc->configuration.mnc[0], f1_setup_req->mnc[i], rrc->nr_cellid, f1_setup_req->nr_cellid[i]); } }// for (int j=0;j<RC.nb_inst;j++) if (found_cell == 0) { AssertFatal(1 == 0, "No cell found\n"); } else { // send ITTI message to F1AP-CU task itti_send_msg_to_task (TASK_CU_F1, 0, msg_p); itti_send_msg_to_task (TASK_CU_F1, 0, msg_p2); } // handle other failure cases }//for (int i=0;i<f1_setup_req->num_cells_available;i++) } void rrc_gNB_process_release_request(const module_id_t gnb_mod_idP, x2ap_ENDC_sgnb_release_request_t *m) { gNB_RRC_INST *rrc = RC.nrrrc[gnb_mod_idP]; rrc_remove_nsa_user(rrc, m->rnti); } void rrc_gNB_process_dc_overall_timeout(const module_id_t gnb_mod_idP, x2ap_ENDC_dc_overall_timeout_t *m) { gNB_RRC_INST *rrc = RC.nrrrc[gnb_mod_idP]; rrc_remove_nsa_user(rrc, m->rnti); } void nr_rrc_subframe_process(protocol_ctxt_t *const ctxt_pP, const int CC_id) { MessageDef *msg; /* send a tick to x2ap */ if (is_x2ap_enabled()){ msg = itti_alloc_new_message(TASK_RRC_ENB, 0, X2AP_SUBFRAME_PROCESS); itti_send_msg_to_task(TASK_X2AP, ctxt_pP->module_id, msg); } } ///---------------------------------------------------------------------------------------------------------------/// ///---------------------------------------------------------------------------------------------------------------/// void *rrc_gnb_task(void *args_p) { MessageDef *msg_p; const char *msg_name_p; instance_t instance; int result; //SRB_INFO *srb_info_p; //int CC_id; protocol_ctxt_t ctxt={.module_id=0, .enb_flag=1, .instance=0, .rnti=0, .frame=-1, .subframe=-1, .eNB_index=0, .configured=true, .brOption=false }; itti_mark_task_ready(TASK_RRC_GNB); LOG_I(NR_RRC,"Entering main loop of NR_RRC message task\n"); while (1) { // Wait for a message itti_receive_msg(TASK_RRC_GNB, &msg_p); msg_name_p = ITTI_MSG_NAME(msg_p); instance = ITTI_MSG_DESTINATION_INSTANCE(msg_p); /* RRC_SUBFRAME_PROCESS is sent every subframe, do not log it */ if (ITTI_MSG_ID(msg_p) != RRC_SUBFRAME_PROCESS) LOG_I(NR_RRC,"Received message %s\n",msg_name_p); switch (ITTI_MSG_ID(msg_p)) { case TERMINATE_MESSAGE: LOG_W(NR_RRC, " *** Exiting NR_RRC thread\n"); itti_exit_task(); break; case MESSAGE_TEST: LOG_I(NR_RRC, "[gNB %ld] Received %s\n", instance, msg_name_p); break; case RRC_SUBFRAME_PROCESS: nr_rrc_subframe_process(&RRC_SUBFRAME_PROCESS(msg_p).ctxt, RRC_SUBFRAME_PROCESS(msg_p).CC_id); break; /* Messages from MAC */ case NR_RRC_MAC_CCCH_DATA_IND: PROTOCOL_CTXT_SET_BY_INSTANCE(&ctxt, NR_RRC_MAC_CCCH_DATA_IND(msg_p).gnb_index, GNB_FLAG_YES, NR_RRC_MAC_CCCH_DATA_IND(msg_p).rnti, msg_p->ittiMsgHeader.lte_time.frame, msg_p->ittiMsgHeader.lte_time.slot); LOG_I(NR_RRC,"Decoding CCCH : ue %d, inst %ld, CC_id %d, ctxt %p, sib_info_p->Rx_buffer.payload_size %d\n", ctxt.rnti, instance, NR_RRC_MAC_CCCH_DATA_IND(msg_p).CC_id, &ctxt, NR_RRC_MAC_CCCH_DATA_IND(msg_p).sdu_size); if (NR_RRC_MAC_CCCH_DATA_IND(msg_p).sdu_size >= CCCH_SDU_SIZE) { LOG_I(NR_RRC, "CCCH message has size %d > %d\n", NR_RRC_MAC_CCCH_DATA_IND(msg_p).sdu_size,CCCH_SDU_SIZE); break; } nr_rrc_gNB_decode_ccch(&ctxt, (uint8_t *)NR_RRC_MAC_CCCH_DATA_IND(msg_p).sdu, NR_RRC_MAC_CCCH_DATA_IND(msg_p).sdu_size, NR_RRC_MAC_CCCH_DATA_IND(msg_p).du_to_cu_rrc_container, NR_RRC_MAC_CCCH_DATA_IND(msg_p).CC_id); if (NR_RRC_MAC_CCCH_DATA_IND(msg_p).du_to_cu_rrc_container) { free(NR_RRC_MAC_CCCH_DATA_IND(msg_p).du_to_cu_rrc_container->buf); free(NR_RRC_MAC_CCCH_DATA_IND(msg_p).du_to_cu_rrc_container); } break; /* Messages from PDCP */ case NR_RRC_DCCH_DATA_IND: PROTOCOL_CTXT_SET_BY_INSTANCE(&ctxt, instance, GNB_FLAG_YES, NR_RRC_DCCH_DATA_IND(msg_p).rnti, msg_p->ittiMsgHeader.lte_time.frame, msg_p->ittiMsgHeader.lte_time.slot); LOG_I(NR_RRC,"Decoding DCCH : ue %d, inst %ld, ctxt %p, size %d\n", ctxt.rnti, instance, &ctxt, NR_RRC_DCCH_DATA_IND(msg_p).sdu_size); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Received on DCCH %d %s\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(&ctxt), NR_RRC_DCCH_DATA_IND(msg_p).dcch_index, msg_name_p); rrc_gNB_decode_dcch(&ctxt, NR_RRC_DCCH_DATA_IND(msg_p).dcch_index, NR_RRC_DCCH_DATA_IND(msg_p).sdu_p, NR_RRC_DCCH_DATA_IND(msg_p).sdu_size); result = itti_free(ITTI_MSG_ORIGIN_ID(msg_p), NR_RRC_DCCH_DATA_IND(msg_p).sdu_p); break; case NGAP_DOWNLINK_NAS: rrc_gNB_process_NGAP_DOWNLINK_NAS(msg_p, msg_name_p, instance, &rrc_gNB_mui); break; case NGAP_PDUSESSION_SETUP_REQ: rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(msg_p, msg_name_p, instance); break; case NGAP_PDUSESSION_RELEASE_COMMAND: rrc_gNB_process_NGAP_PDUSESSION_RELEASE_COMMAND(msg_p, msg_name_p, instance); break; case GTPV1U_GNB_DELETE_TUNNEL_RESP: break; /* #if defined(ENABLE_USE_MME) // Messages from S1AP case S1AP_DOWNLINK_NAS: rrc_eNB_process_S1AP_DOWNLINK_NAS(msg_p, msg_name_p, instance, &rrc_gNB_mui); break; case S1AP_INITIAL_CONTEXT_SETUP_REQ: rrc_eNB_process_S1AP_INITIAL_CONTEXT_SETUP_REQ(msg_p, msg_name_p, instance); break; case S1AP_UE_CTXT_MODIFICATION_REQ: rrc_eNB_process_S1AP_UE_CTXT_MODIFICATION_REQ(msg_p, msg_name_p, instance); break; case S1AP_PAGING_IND: LOG_D(RRC, "[eNB %d] Received Paging message from S1AP: %s\n", instance, msg_name_p); rrc_eNB_process_PAGING_IND(msg_p, msg_name_p, instance); break; case S1AP_E_RAB_SETUP_REQ: rrc_eNB_process_S1AP_E_RAB_SETUP_REQ(msg_p, msg_name_p, instance); LOG_D(RRC, "[eNB %d] Received the message %s\n", instance, msg_name_p); break; case S1AP_E_RAB_MODIFY_REQ: rrc_eNB_process_S1AP_E_RAB_MODIFY_REQ(msg_p, msg_name_p, instance); break; case S1AP_E_RAB_RELEASE_COMMAND: rrc_eNB_process_S1AP_E_RAB_RELEASE_COMMAND(msg_p, msg_name_p, instance); break; case S1AP_UE_CONTEXT_RELEASE_REQ: rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_REQ(msg_p, msg_name_p, instance); break; case S1AP_UE_CONTEXT_RELEASE_COMMAND: rrc_eNB_process_S1AP_UE_CONTEXT_RELEASE_COMMAND(msg_p, msg_name_p, instance); break; case GTPV1U_ENB_DELETE_TUNNEL_RESP: ///Nothing to do. Apparently everything is done in S1AP processing //LOG_I(RRC, "[eNB %d] Received message %s, not processed because procedure not synched\n", //instance, msg_name_p); if (rrc_eNB_get_ue_context(RC.nrrrc[instance], GTPV1U_ENB_DELETE_TUNNEL_RESP(msg_p).rnti) && rrc_eNB_get_ue_context(RC.nrrrc[instance], GTPV1U_ENB_DELETE_TUNNEL_RESP(msg_p).rnti)->ue_context.ue_release_timer_rrc > 0) { rrc_eNB_get_ue_context(RC.nrrrc[instance], GTPV1U_ENB_DELETE_TUNNEL_RESP(msg_p).rnti)->ue_context.ue_release_timer_rrc = rrc_eNB_get_ue_context(RC.nrrrc[instance], GTPV1U_ENB_DELETE_TUNNEL_RESP(msg_p).rnti)->ue_context.ue_release_timer_thres_rrc; } break; #endif */ /* Messages from gNB app */ case NRRRC_CONFIGURATION_REQ: LOG_I(NR_RRC, "[gNB %ld] Received %s : %p\n", instance, msg_name_p,&NRRRC_CONFIGURATION_REQ(msg_p)); openair_rrc_gNB_configuration(GNB_INSTANCE_TO_MODULE_ID(instance), &NRRRC_CONFIGURATION_REQ(msg_p)); break; /* Messages from F1AP task */ case F1AP_SETUP_REQ: AssertFatal(NODE_IS_CU(RC.nrrrc[instance]->node_type), "should not receive F1AP_SETUP_REQUEST, need call by CU!\n"); LOG_I(NR_RRC,"[gNB %ld] Received %s : %p\n", instance, msg_name_p, &F1AP_SETUP_REQ(msg_p)); rrc_gNB_process_f1_setup_req(&F1AP_SETUP_REQ(msg_p)); break; /* Messages from X2AP */ case X2AP_ENDC_SGNB_ADDITION_REQ: LOG_I(NR_RRC, "Received ENDC sgNB addition request from X2AP \n"); rrc_gNB_process_AdditionRequestInformation(GNB_INSTANCE_TO_MODULE_ID(instance), &X2AP_ENDC_SGNB_ADDITION_REQ(msg_p)); break; case X2AP_ENDC_SGNB_RECONF_COMPLETE: LOG_I(NR_RRC, "Handling of reconfiguration complete message at RRC gNB is pending \n"); break; case NGAP_INITIAL_CONTEXT_SETUP_REQ: rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(msg_p, msg_name_p, instance); break; case X2AP_ENDC_SGNB_RELEASE_REQUEST: LOG_I(NR_RRC, "Received ENDC sgNB release request from X2AP \n"); rrc_gNB_process_release_request(GNB_INSTANCE_TO_MODULE_ID(instance), &X2AP_ENDC_SGNB_RELEASE_REQUEST(msg_p)); break; case X2AP_ENDC_DC_OVERALL_TIMEOUT: rrc_gNB_process_dc_overall_timeout(GNB_INSTANCE_TO_MODULE_ID(instance), &X2AP_ENDC_DC_OVERALL_TIMEOUT(msg_p)); break; /* Messages from GTP */ case GTPV1U_ENB_DELETE_TUNNEL_RESP: /* nothing to do? */ break; case NGAP_UE_CONTEXT_RELEASE_REQ: rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_REQ(msg_p, msg_name_p, instance); break; case NGAP_UE_CONTEXT_RELEASE_COMMAND: rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_COMMAND(msg_p, msg_name_p, instance); break; default: LOG_E(NR_RRC, "[gNB %ld] Received unexpected message %s\n", instance, msg_name_p); break; } result = itti_free(ITTI_MSG_ORIGIN_ID(msg_p), msg_p); AssertFatal(result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result); msg_p = NULL; } } //----------------------------------------------------------------------------- void rrc_gNB_generate_SecurityModeCommand( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP ) //----------------------------------------------------------------------------- { uint8_t buffer[100]; uint8_t size; T(T_ENB_RRC_SECURITY_MODE_COMMAND, T_INT(ctxt_pP->module_id), T_INT(ctxt_pP->frame), T_INT(ctxt_pP->subframe), T_INT(ctxt_pP->rnti)); NR_IntegrityProtAlgorithm_t integrity_algorithm = (NR_IntegrityProtAlgorithm_t)ue_context_pP->ue_context.integrity_algorithm; size = do_NR_SecurityModeCommand( ctxt_pP, buffer, rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id), ue_context_pP->ue_context.ciphering_algorithm, &integrity_algorithm); LOG_DUMPMSG(NR_RRC,DEBUG_RRC,(char *)buffer,size,"[MSG] RRC Security Mode Command\n"); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Logical Channel DL-DCCH, Generate SecurityModeCommand (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size); switch (RC.nrrrc[ctxt_pP->module_id]->node_type) { case ngran_gNB_CU: // create an ITTI message memcpy(ue_context_pP->ue_context.Srb1.Srb_info.Tx_buffer.Payload, buffer, size); ue_context_pP->ue_context.Srb1.Srb_info.Tx_buffer.payload_size = size; LOG_I(NR_RRC,"calling rrc_data_req :securityModeCommand\n"); nr_rrc_data_req(ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); break; case ngran_gNB_DU: // nothing to do for DU AssertFatal(1==0,"nothing to do for DU\n"); break; case ngran_gNB: LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" --- PDCP_DATA_REQ/%d Bytes (securityModeCommand to UE MUI %d) --->[PDCP][RB %02d]\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size, rrc_gNB_mui, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" securityModeCommand UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM,size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else LOG_I(NR_RRC,"calling rrc_data_req :securityModeCommand\n"); nr_rrc_data_req(ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); #endif break; default : LOG_W(NR_RRC, "Unknown node type %d\n", RC.nrrrc[ctxt_pP->module_id]->node_type); } } void rrc_gNB_generate_UECapabilityEnquiry( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP ) //----------------------------------------------------------------------------- { uint8_t buffer[100]; uint8_t size; T(T_ENB_RRC_UE_CAPABILITY_ENQUIRY, T_INT(ctxt_pP->module_id), T_INT(ctxt_pP->frame), T_INT(ctxt_pP->subframe), T_INT(ctxt_pP->rnti)); size = do_NR_SA_UECapabilityEnquiry( ctxt_pP, buffer, rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id)); LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Logical Channel DL-DCCH, Generate NR UECapabilityEnquiry (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size); switch (RC.nrrrc[ctxt_pP->module_id]->node_type) { case ngran_gNB_CU: nr_rrc_data_req( ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); break; case ngran_gNB_DU: // nothing to do for DU AssertFatal(1==0,"nothing to do for DU\n"); break; case ngran_gNB: // rrc_mac_config_req_gNB LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" --- PDCP_DATA_REQ/%d Bytes (NR UECapabilityEnquiry MUI %d) --->[PDCP][RB %02d]\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size, rrc_gNB_mui, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" rrcNRUECapabilityEnquiry UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else nr_rrc_data_req( ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); #endif break; default : LOG_W(NR_RRC, "Unknown node type %d\n", RC.nrrrc[ctxt_pP->module_id]->node_type); } } //----------------------------------------------------------------------------- /* * Generate the RRC Connection Release to UE. * If received, UE should switch to RRC_IDLE mode. */ void rrc_gNB_generate_RRCRelease( const protocol_ctxt_t *const ctxt_pP, rrc_gNB_ue_context_t *const ue_context_pP ) //----------------------------------------------------------------------------- { uint8_t buffer[RRC_BUF_SIZE]; uint16_t size = 0; memset(buffer, 0, RRC_BUF_SIZE); size = do_NR_RRCRelease(buffer,rrc_gNB_get_next_transaction_identifier(ctxt_pP->module_id)); ue_context_pP->ue_context.ue_reestablishment_timer = 0; ue_context_pP->ue_context.ue_release_timer = 0; LOG_I(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" Logical Channel DL-DCCH, Generate RRCRelease (bytes %d)\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size); LOG_D(NR_RRC, PROTOCOL_NR_RRC_CTXT_UE_FMT" --- PDCP_DATA_REQ/%d Bytes (rrcRelease MUI %d) --->[PDCP][RB %u]\n", PROTOCOL_NR_RRC_CTXT_UE_ARGS(ctxt_pP), size, rrc_gNB_mui, DCCH); MSC_LOG_TX_MESSAGE( MSC_RRC_GNB, MSC_RRC_UE, buffer, size, MSC_AS_TIME_FMT" NR_RRCRelease UE %x MUI %d size %u", MSC_AS_TIME_ARGS(ctxt_pP), ue_context_pP->ue_context.rnti, rrc_gNB_mui, size); #ifdef ITTI_SIM MessageDef *message_p; uint8_t *message_buffer; message_buffer = itti_malloc (TASK_RRC_GNB, TASK_RRC_UE_SIM, size); memcpy (message_buffer, buffer, size); message_p = itti_alloc_new_message (TASK_RRC_GNB, 0, GNB_RRC_DCCH_DATA_IND); GNB_RRC_DCCH_DATA_IND (message_p).rbid = DCCH; GNB_RRC_DCCH_DATA_IND (message_p).sdu = message_buffer; GNB_RRC_DCCH_DATA_IND (message_p).size = size; itti_send_msg_to_task (TASK_RRC_UE_SIM, ctxt_pP->instance, message_p); #else if (NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) { MessageDef *m = itti_alloc_new_message(TASK_RRC_GNB, 0, F1AP_UE_CONTEXT_RELEASE_CMD); F1AP_UE_CONTEXT_RELEASE_CMD(m).rnti = ctxt_pP->rnti; F1AP_UE_CONTEXT_RELEASE_CMD(m).cause = F1AP_CAUSE_RADIO_NETWORK; F1AP_UE_CONTEXT_RELEASE_CMD(m).cause_value = 10; // 10 = F1AP_CauseRadioNetwork_normal_release F1AP_UE_CONTEXT_RELEASE_CMD(m).rrc_container = buffer; F1AP_UE_CONTEXT_RELEASE_CMD(m).rrc_container_length = size; itti_send_msg_to_task(TASK_CU_F1, ctxt_pP->module_id, m); } else { nr_rrc_data_req(ctxt_pP, DCCH, rrc_gNB_mui++, SDU_CONFIRM_NO, size, buffer, PDCP_TRANSMISSION_MODE_CONTROL); } #endif } void nr_rrc_trigger(protocol_ctxt_t *ctxt, int CC_id, int frame, int subframe) { MessageDef *message_p; message_p = itti_alloc_new_message(TASK_RRC_GNB, 0, RRC_SUBFRAME_PROCESS); RRC_SUBFRAME_PROCESS(message_p).ctxt = *ctxt; RRC_SUBFRAME_PROCESS(message_p).CC_id = CC_id; itti_send_msg_to_task(TASK_RRC_GNB, ctxt->module_id, message_p); }