Messages in this thread |  | | Date | Fri, 14 Jun 1996 19:27:21 -0400 (EDT) | From | Kenneth Albanowski <> | Subject | Re: os9 and linux |
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On Fri, 14 Jun 1996, Alan Cox wrote:
> > 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).
Yes, I know userfs could be secure, but it is also broken currently. (Or was the last time I looked.) The libc approach which Linus mentioned would have the extreme benefit of simplicity of implementation.
> Alan
-- Kenneth Albanowski (kjahds@kjahds.com, CIS: 70705,126)
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