Local boot menu with extended information

Hello,

I need to create a boot menu with only local drives and additional information (bios drive number, bus type, model, serial number, capacity). And then allow user to select only boot devices that pass hard-coded filter (I plan to hardcode boot menu and filter rules into "autoboot.c").

I've found some structures in "ata.c", but no code points or examples how to access (or prepare) list of local disks (IDE/SATA/USB). Maybe someone knows good starting point?

Thanks in advance