Introduce a typed SIB2 cell reselection configuration, load it from the
gNB configuration into the RRC gNB instance, and use it to build and
encode SIB2 instead of relying on a fixed SIB2 definition.
Validate SIB2 parameters against explicit bounds and make the SIB2
encoder consume a pre-built ASN.1 structure with safer error handling.
Changes:
- Add SIB2 mobility timer and q-HystSF enums plus SIB2 config structs
(`sib2_speed_state_reselection_pars_t`, `sib2_config_t`) and a
`sib2_config` field on `gNB_RRC_INST` in `nr_rrc_defs.h`.
- Define SIB2 configuration option names, defaults
(`GNB_CONFIG_STRING_SIB2_*`, `GNBSIB2PARAMS_DESC`)
in `gnb_paramdef.h` for q_Hyst, thresholds, mobility timers, scaling
factors and deriveSSB_IndexFromCell.
- Add `sib2_config` parameter keys, defaults, and range/value checks in
`gnb_paramdef.h` (`GNBSIB2PARAMS_DESC`).
- Add SIB2 `fill_sib2_configuration()` in `gnb_config.c` to read SIB2
parameters from the config file log the resulting configuration and
store it in `rrc->sib2_config` via `RCconfig_NRRRC()`.
- Add `get_q_hyst_asn1()` and `get_sib2_from_cfg()` in `rrc_gNB_du.c`, and
update `rrc_gNB_process_f1_setup_req()` to encode/add SIB2 from config with
explicit encode-failure handling and logging.
- Change `do_SIB2_NR` signature in `asn1_msg.h/.c` to
`byte_array_t do_SIB2_NR(const NR_SIB2_t *sib2)`, remove internal default
SIB2 construction, and add ASN.1 constraint/encode error logging.
Guido Casati
9afa94040d