Hi, On Wed, Mar 21, 2018 at 02:43:21AM +0100, Jonas Rabenstein wrote: > On Tue, Mar 20, 2018 at 04:09:08PM -0600, Scott Bauer wrote: > > On Tue, Mar 20, 2018 at 10:36:04AM +0100, Jonas Rabenstein wrote: > > > On Mon, Mar 19, 2018 at 08:52:24PM +0100, Christoph Hellwig wrote: > > > > On Mon, Mar 19, 2018 at 07:36:50PM +0100, Jonas Rabenstein wrote: > > > > I hate doing this as an ioctls. Can we make this a sysfs binary file > > > > so that people can use dd or cat to write the shadow mbr? > > > I already thought about providing a sysfs interface for all that instead > > > of using ioctls. But as I am pretty new to kernel programming I do not > > > have all the required insight. Especially, as writing the mbr requires > > > the sed-opal password I am unsure how a clean sysfs interface to provide > > > the password together with a simple dd would look like. Just wanted to ask, how to proceed with those patches/what I should do. Using sysfs instead of an ioctl is probably easier to use from userspace _if_ there is a good way to provide the password - which I do not know of :( If nobody else could think of a solution, shall writes to the shadow mbr remain unsupported? I'ld really appreciate feedback and possible solutions, Jonas
