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.
66 lines
2.7 KiB
C
66 lines
2.7 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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#ifndef _RRC_GNB_DRBS_H_
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#define _RRC_GNB_DRBS_H_
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#include <stdbool.h>
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#include <stdint.h>
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#include "e1ap_messages_types.h"
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#include "nr_rrc_defs.h"
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/// @brief retrieve the data structure representing DRB with ID drb_id of UE ue
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drb_t *get_drb(seq_arr_t *seq, int id);
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/// @brief retrieve PDU session of UE ue with ID id
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rrc_pdu_session_param_t *find_pduSession(seq_arr_t *seq, int id);
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/// @brief Add a new PDU session for UE @param ue and configuration @param in
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rrc_pdu_session_param_t *add_pduSession(seq_arr_t *sessions_ptr, const pdusession_t *in);
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/// @brief get PDU session of UE ue through the DRB drb_id
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rrc_pdu_session_param_t *find_pduSession_from_drbId(gNB_RRC_UE_t *ue, int drb_id);
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/// @brief Remove PDU Session from RRC list
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/// Also removes all associated DRBs for this PDU session.
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bool rm_pduSession(seq_arr_t *sessions, seq_arr_t *drbs, int pdusession_id);
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/// @brief set PDCP configuration in E1 Bearer Context Management message
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bearer_context_pdcp_config_t set_bearer_context_pdcp_config(const nr_pdcp_configuration_t pdcp,
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bool um_on_default_drb,
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const nr_redcap_ue_cap_t *redcap_cap);
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void free_pdusession(void *ptr);
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/// @brief Add DRB to RRC list
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drb_t *nr_rrc_add_drb(seq_arr_t *drb_ptr, int pdusession_id, nr_pdcp_configuration_t *pdcp);
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/// @brief Function to free DRB in RRC
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void free_drb(void *ptr);
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/// @brief retrieve QoS flow associated to @param qfi
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nr_rrc_qos_t *find_qos(seq_arr_t *seq, int qfi);
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/// @brief Add a new QoS to the list
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nr_rrc_qos_t *add_qos(seq_arr_t *qos, const pdusession_level_qos_parameter_t *in);
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#endif
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