Re: os9 and linux
Alan Cox (alan@cymru.net)
Fri, 14 Jun 1996 09:33:14 +0100 (BST)
> I remember Linus mentioning that he had been convinced that doing this
> stuff completely at the user-level (assumedly via a libc shim) is superior
> to kernel-level, but I never saw how you can make such a technique secure.
Take a look at userfs, that is secure if mounted nosuid (as it will always
be). Hurd has some work on user level translators too, including in theory
the ability to have setuid binaries (but only setuid to the things the owner
of the translator could setuid too).
Alan