Hello Marcel, On 10.02.21 09:37, barebox+mailing@xxxxxxxxxxxxx wrote: > Hey everyone, > > I would like to set and read barebox-states during runtime. Unfortunately only a binary is available to be used. > But because the variable names and values are from an untrusted environment, I don't like them to be passed to a shell directly. I can't follow here. Why can't you run barebox-state with the required arguments? That's what e.g. RAUC is doing. It can listen on DBus for e.g. a mark-good and then calls barebox-state with the correct arguments. You can use standard Linux access control mechanisms, so only your daemon's group may use barebox-state. > Therefore I would like to use a barebox-state library, which offers some functions, e.g. read_var, set_var, ... dt-utils and barebox-sate is GPL2-licensed, so if that's acceptable for your daemon, you could take dt-utils:src/barebox-state.c and replace the argument parsing with whatever. I am not aware whether someone did that before though. > An other approach would be some kind of IPC, e.g. dbus or similar, but I'm not sure if that would fit into the simplicity of the current binary. > > Do you see any other possibilities so fetch and set variables from the barebox-state? > Greetings, > Marcel Cheers, Ahmad > > _______________________________________________ > barebox mailing list > barebox@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/barebox > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
