On Tue, Feb 08, 2005 at 02:09:02AM +0100, Andrzej Polatynski wrote: > Greg KH wrote: > > >You get it from userspace, which is where you should be doing all of > >this (not from within the kernel.) > > What my module is supposed to be is a sample security module (mainly for > demonstration purpose) based on LSM framework. IMHO in this case doing > this in userspace would be less secure. > > Details: I want to achieve similar functionality to your root_plug > module but with an additional key/PIN checking. In original plans this > key would be stored on a SmartCard but, as I don't have a SmartCard > reader, I thought of storing it on a simple USB pendrive. No, have userspace give the kernel that key/PIN/whatever. Trying to figure out where a specific USB device is mounted from within the kernel is a _very_ tough task. And it's nothing that will ever be accepted in mainline :) Good luck, greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
