/usr/include/OpenIPMI/ is in libopenipmi-dev 2.0.16-1.4.
This file is owned by root:root, with mode 0o755.
..
/usr/include/OpenIPMI/internal/
/usr/include/OpenIPMI/internal/ilist.h
/usr/include/OpenIPMI/internal/ipmi_control.h
/usr/include/OpenIPMI/internal/ipmi_domain.h
/usr/include/OpenIPMI/internal/ipmi_entity.h
/usr/include/OpenIPMI/internal/ipmi_event.h
/usr/include/OpenIPMI/internal/ipmi_fru.h
/usr/include/OpenIPMI/internal/ipmi_int.h
/usr/include/OpenIPMI/internal/ipmi_locks.h
/usr/include/OpenIPMI/internal/ipmi_malloc.h
/usr/include/OpenIPMI/internal/ipmi_mc.h
/usr/include/OpenIPMI/internal/ipmi_oem.h
/usr/include/OpenIPMI/internal/ipmi_sel.h
/usr/include/OpenIPMI/internal/ipmi_sensor.h
/usr/include/OpenIPMI/internal/ipmi_utils.h
/usr/include/OpenIPMI/internal/locked_list.h
/usr/include/OpenIPMI/internal/md2.h
/usr/include/OpenIPMI/internal/md5.h
/usr/include/OpenIPMI/internal/opq.h
/usr/include/OpenIPMI/ipmi_addr.h
/usr/include/OpenIPMI/ipmi_auth.h
/usr/include/OpenIPMI/ipmi_bits.h
/usr/include/OpenIPMI/ipmi_cmdlang.h
/usr/include/OpenIPMI/ipmi_conn.h
/usr/include/OpenIPMI/ipmi_debug.h
/usr/include/OpenIPMI/ipmi_err.h
/usr/include/OpenIPMI/ipmi_fru.h
/usr/include/OpenIPMI/ipmi_glib.h
/usr/include/OpenIPMI/ipmi_lan.h
/usr/include/OpenIPMI/ipmi_lanparm.h
/usr/include/OpenIPMI/ipmi_log.h
/usr/include/OpenIPMI/ipmi_mc.h
/usr/include/OpenIPMI/ipmi_msgbits.h
/usr/include/OpenIPMI/ipmi_pef.h
/usr/include/OpenIPMI/ipmi_pet.h
/usr/include/OpenIPMI/ipmi_picmg.h
/usr/include/OpenIPMI/ipmi_posix.h
/usr/include/OpenIPMI/ipmi_sdr.h
/usr/include/OpenIPMI/ipmi_smi.h
/usr/include/OpenIPMI/ipmi_sol.h
/usr/include/OpenIPMI/ipmi_solparm.h
/usr/include/OpenIPMI/ipmi_tcl.h
/usr/include/OpenIPMI/ipmi_types.h
/usr/include/OpenIPMI/ipmi_ui.h
/usr/include/OpenIPMI/ipmi_user.h
/usr/include/OpenIPMI/ipmiif.h
/usr/include/OpenIPMI/lanserv.h
/usr/include/OpenIPMI/mxp.h
/usr/include/OpenIPMI/os_handler.h
/usr/include/OpenIPMI/selector.h