From 178a5a66d411fbbfb8b7216ec2067512836dd827 Mon Sep 17 00:00:00 2001
From: Cedric Roux <cedric.roux@eurecom.fr>
Date: Tue, 15 Apr 2025 17:02:35 +0200
Subject: [PATCH] add functions to retrieve configuration values for NR RLC and
 NR PDCP

They will be used in a later commit.
---
 openair2/GNB_APP/gnb_config.c | 49 +++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/openair2/GNB_APP/gnb_config.c b/openair2/GNB_APP/gnb_config.c
index 70e6c026ca..317f1c6a91 100644
--- a/openair2/GNB_APP/gnb_config.c
+++ b/openair2/GNB_APP/gnb_config.c
@@ -1467,6 +1467,55 @@ static seq_arr_t *fill_du_sibs(paramdef_t *GNBparamarray)
   return du_SIBs;
 }
 
+void config_rlc(configmodule_interface_t *cfg, nr_rlc_configuration_t *rlc_config)
+{
+  /* SRB configuration */
+  paramdef_t rlc_srb_params[] = NR_RLC_SRB_GLOBALPARAMS_DESC;
+  int ret = config_get(cfg, rlc_srb_params, sizeofArray(rlc_srb_params), CONFIG_STRING_NR_RLC_SRB);
+  AssertFatal(ret >= 0, "problem reading NR RLC configuration from configuration file\n");
+
+  rlc_config->srb.t_poll_retransmit = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_T_POLL_RETRANSMIT_IDX]);
+  rlc_config->srb.t_reassembly = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_T_REASSEMBLY_IDX]);
+  rlc_config->srb.t_status_prohibit = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_T_STATUS_PROHIBIT_IDX]);
+  rlc_config->srb.poll_pdu = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_POLL_PDU_IDX]);
+  rlc_config->srb.poll_byte = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_POLL_BYTE_IDX]);
+  rlc_config->srb.max_retx_threshold = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_MAX_RETX_THRESHOLD_IDX]);
+  rlc_config->srb.sn_field_length = config_get_processedint(cfg, &rlc_srb_params[CONFIG_NR_RLC_SRB_SN_FIELD_LENGTH_IDX]);
+
+  /* DRB AM configuration */
+  paramdef_t rlc_drb_am_params[] = NR_RLC_DRB_AM_GLOBALPARAMS_DESC;
+  ret = config_get(cfg, rlc_drb_am_params, sizeofArray(rlc_drb_am_params), CONFIG_STRING_NR_RLC_DRB_AM);
+  AssertFatal(ret >= 0, "problem reading NR RLC configuration from configuration file\n");
+
+  rlc_config->drb_am.t_poll_retransmit = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_T_POLL_RETRANSMIT_IDX]);
+  rlc_config->drb_am.t_reassembly = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_T_REASSEMBLY_IDX]);
+  rlc_config->drb_am.t_status_prohibit = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_T_STATUS_PROHIBIT_IDX]);
+  rlc_config->drb_am.poll_pdu = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_POLL_PDU_IDX]);
+  rlc_config->drb_am.poll_byte = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_POLL_BYTE_IDX]);
+  rlc_config->drb_am.max_retx_threshold = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_MAX_RETX_THRESHOLD_IDX]);
+  rlc_config->drb_am.sn_field_length = config_get_processedint(cfg, &rlc_drb_am_params[CONFIG_NR_RLC_DRB_AM_SN_FIELD_LENGTH_IDX]);
+
+  /* DRB UM configuration */
+  paramdef_t rlc_drb_um_params[] = NR_RLC_DRB_UM_GLOBALPARAMS_DESC;
+  ret = config_get(cfg, rlc_drb_um_params, sizeofArray(rlc_drb_um_params), CONFIG_STRING_NR_RLC_DRB_UM);
+  AssertFatal(ret >= 0, "problem reading NR RLC configuration from configuration file\n");
+
+  rlc_config->drb_um.t_reassembly = config_get_processedint(cfg, &rlc_drb_um_params[CONFIG_NR_RLC_DRB_UM_T_REASSEMBLY_IDX]);
+  rlc_config->drb_um.sn_field_length = config_get_processedint(cfg, &rlc_drb_um_params[CONFIG_NR_RLC_DRB_UM_SN_FIELD_LENGTH_IDX]);
+}
+
+void config_pdcp(configmodule_interface_t *cfg, nr_pdcp_configuration_t *pdcp_config)
+{
+  /* DRB configuration */
+  paramdef_t pdcp_params[] = NR_PDCP_DRB_GLOBALPARAMS_DESC;
+  int ret = config_get(cfg, pdcp_params, sizeofArray(pdcp_params), CONFIG_STRING_NR_PDCP_DRB);
+  AssertFatal(ret >= 0, "problem reading NR PDCP configuration from configuration file\n");
+
+  pdcp_config->drb.sn_size = config_get_processedint(cfg, &pdcp_params[CONFIG_NR_PDCP_DRB_SN_SIZE_IDX]);
+  pdcp_config->drb.t_reordering = config_get_processedint(cfg, &pdcp_params[CONFIG_NR_PDCP_DRB_T_REORDERING_IDX]);
+  pdcp_config->drb.discard_timer = config_get_processedint(cfg, &pdcp_params[CONFIG_NR_PDCP_DRB_DISCARD_TIMER_IDX]);
+}
+
 void RCconfig_nr_macrlc(configmodule_interface_t *cfg)
 {
   int j = 0;