Re: capability set reference...
Y2K (y2k@y2ker.com)
Fri, 21 May 1999 17:37:39 -0700 (PDT)
On Wed, 19 May 1999, John Wojtowicz wrote:
> (NOTE: this is general privilege set mathematics, may not apply
> to linux yet.)
> P being process permitted set
pP
> E being process effective set
pE
> I being process inheritable set
pI
> S being process saved set
Doesn't exist
>
> A being files allowed set
fI
> F being files forced set
fP
> 0 being the empty privilege set
fP fE fI are permitted , effective, and inheritable for the file
>
> P=E=(I[parent process] unioned with F[program] restricted by A[program])
pI'=pI
pP'=fP|(pI&fI)
pE'=fE&pP'
Look up cap_emulate_setxuid
--
Any caps I mention are *derived* from a withdrawn draft posix document.
See http://www.millenniumproductsllc.com/sjp/ for more info.
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