In rrc_gNB_NGAP.c, rrc_gNB_process_Handover_Request() is updated to
resolve the target by cell instead of by DU, then resolve the DU from
the cell's assoc_id. This aligns Handover Request with the new
cell-centric model and cell management APIs.
- Resolve target with get_cell_by_cell_id(&rrc->cells, msg->nr_cell_id)
instead of get_du_by_cell_id(); on failure, log "no cell found" and
send NGAP handover failure.
- Resolve DU with get_du_by_assoc_id(rrc, cell->assoc_id); add a
failure path (log, NGAP handover failure, return -1) when no DU
exists for the cell's assoc_id.
- Use cell->info (nr_rrc_cell_info_t) for logging and for key
derivation (nr_derive_key_ng_ran_star); use du->assoc_id
for UE context creation instead of du->setup_req->cell[0].info.
get_ssb_arfcn(du) is unchanged and still takes the DU; other DU-based
lookups are kept where still required.
Guido Casati
5980dbcb40