Guido Casati
3cfe2e265a
We need to keep PDU sessions and DRBs in list until the NGAP PDU Session Release Response is sent. * Introduced find_drb() and remove_drbs_by_pdu_session() helpers to locate and clean up DRBs linked to a specific PDU session * Targeted per-session DRB removal in rrc_gNB_send_NGAP_PDUSESSION_RELEASE_RESPONSE() * Ensures DRBs for unaffected PDU sessions remain intact * Remove unused PDU_SESSION_STATUS_RELEASED status: keeping this status is no longer relevant since the PDU sessions are effectively removed from the RRC lists Closes #867 Also, refactor rrc_gNB_process_NGAP_PDUSESSION_RELEASE_COMMAND 3GPP TS 38.413 8.2.2 PDU Session Resource Release says: > upon reception the NG-RAN node shall execute the release of the requested PDU sessions. > For each PDU session to be released the NG-RAN node shall release the corresponding > resources over Uu and over NG, if any. Therefore, any PDU session in the pdusession_release_params list that is also present in the RRC list can be set to release, regardless of its status. The function signature was also updated along with other minor changes.
116 lines
5.2 KiB
C
116 lines
5.2 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file rrc_gNB_NGAP.h
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* \brief rrc NGAP procedures for gNB
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* \author Yoshio INOUE, Masayuki HARADA
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* \date 2020
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* \version 0.1
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* \email: yoshio.inoue@fujitsu.com,masayuki.harada@fujitsu.com
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* (yoshio.inoue%40fujitsu.com%2cmasayuki.harada%40fujitsu.com)
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*/
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#ifndef RRC_GNB_NGAP_H_
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#define RRC_GNB_NGAP_H_
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#include <assertions.h>
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#include <stdint.h>
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#include "NR_RRCSetupComplete-IEs.h"
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#include "NR_UECapabilityInformation.h"
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#include "NR_UL-DCCH-Message.h"
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#include "intertask_interface.h"
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#include "ngap_messages_types.h"
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#include "nr_rrc_defs.h"
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extern mui_t rrc_gNB_mui;
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void rrc_gNB_send_NGAP_NAS_FIRST_REQ(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, NR_RRCSetupComplete_IEs_t *rrcSetupComplete);
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int rrc_gNB_process_NGAP_INITIAL_CONTEXT_SETUP_REQ(MessageDef *msg_p, instance_t instance);
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void rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_RESP(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE);
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void rrc_gNB_send_NGAP_INITIAL_CONTEXT_SETUP_FAIL(uint32_t gnb,
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const rrc_gNB_ue_context_t *const ue_context_pP,
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const ngap_cause_t causeP);
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int rrc_gNB_process_NGAP_DOWNLINK_NAS(MessageDef *msg_p, instance_t instance, mui_t *rrc_gNB_mui);
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void rrc_gNB_send_NGAP_UPLINK_NAS(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, const NR_UL_DCCH_Message_t *const ul_dcch_msg);
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void rrc_gNB_send_NGAP_PDUSESSION_SETUP_RESP(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, uint8_t xid);
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void rrc_gNB_process_NGAP_PDUSESSION_SETUP_REQ(MessageDef *msg_p, instance_t instance);
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int rrc_gNB_process_NGAP_PDUSESSION_MODIFY_REQ(MessageDef *msg_p, instance_t instance);
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int rrc_gNB_send_NGAP_PDUSESSION_MODIFY_RESP(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, uint8_t xid);
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void rrc_gNB_modify_dedicatedRRCReconfiguration(gNB_RRC_INST *rrc, gNB_RRC_UE_t *ue_p);
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void rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_REQ(const module_id_t gnb_mod_idP,
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const rrc_gNB_ue_context_t *const ue_context_pP,
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const ngap_cause_t causeP);
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int rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_REQ(MessageDef *msg_p, instance_t instance);
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int rrc_gNB_process_NGAP_UE_CONTEXT_RELEASE_COMMAND(MessageDef *msg_p, instance_t instance);
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void rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_COMPLETE(instance_t instance, uint32_t gNB_ue_ngap_id, seq_arr_t *pduSessions);
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void rrc_gNB_send_NGAP_UE_CAPABILITIES_IND(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, const NR_UECapabilityInformation_t *const ue_cap_info);
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int rrc_gNB_process_NGAP_PDUSESSION_RELEASE_COMMAND(ngap_pdusession_release_command_t *cmd, gNB_RRC_INST *rrc);
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void rrc_gNB_send_NGAP_PDUSESSION_RELEASE_RESPONSE(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, uint8_t xid);
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void nr_rrc_pdcp_config_security(gNB_RRC_UE_t *UE, bool enable_ciphering);
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int rrc_gNB_process_PAGING_IND(MessageDef *msg_p, instance_t instance);
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void rrc_gNB_send_NGAP_HANDOVER_REQUIRED(gNB_RRC_INST *rrc,
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gNB_RRC_UE_t *UE,
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const nr_neighbour_cell_t *neighbourCellConfiguration,
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const byte_array_t hoPrepInfo);
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void rrc_gNB_send_NGAP_HANDOVER_FAILURE(gNB_RRC_INST *rrc, ngap_handover_failure_t *msg);
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int rrc_gNB_process_Handover_Request(gNB_RRC_INST *rrc, instance_t instance, ngap_handover_request_t *msg);
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void rrc_gNB_free_Handover_Request(ngap_handover_request_t *msg);
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void rrc_gNB_send_NGAP_HANDOVER_REQUEST_ACKNOWLEDGE(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE, byte_array_t ho_command);
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void rrc_gNB_process_HandoverCommand(gNB_RRC_INST *rrc, const ngap_handover_command_t *msg);
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void rrc_gNB_free_Handover_Command(ngap_handover_command_t *msg);
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void rrc_gNB_send_NGAP_HANDOVER_NOTIFY(gNB_RRC_INST *rrc, gNB_RRC_UE_t *UE);
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void rrc_gNB_send_NGAP_HANDOVER_CANCEL(int module_id, gNB_RRC_UE_t *UE, ngap_cause_t cause);
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int rrc_gNB_send_NGAP_ul_ran_status_transfer(gNB_RRC_INST *rrc,
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gNB_RRC_UE_t *UE,
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const int n_to_mod,
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const int *drb_ids,
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const e1_pdcp_status_info_t *pdcp_status);
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int rrc_gNB_process_NGAP_DL_RAN_STATUS_TRANSFER(MessageDef *msg_p, instance_t instance);
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#endif
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