Re: HW access allowed ?
David Schwartz (davids@webmaster.com)
Wed, 8 Apr 1998 13:55:47 -0400
>It just doesn't give every program that happens to run under a specific
>uid (say, root) the authority to shoot wherever it wants (including your
>foot) but instead let's you specify where (and how much) each program is
>allowed to shoot. Then, if you really want to shoot yourself in the
>foot, you can set this one program up so that it will fire in the right
>direction just once and blow your foot away (and only your foot and not
>also your head if you happen to stick your foot in your mouth).
I don't know of any operating system that bases permissions on each
program. So far as I know, every operating system bases the permissions on
those associated with the user that "happens to" run the program. There is
no operating system I know of where it is safe for a privileged user to run
buggy or malicious userland programs.
DS
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