Messages in this thread | | | Date | Sat, 17 Apr 1999 21:20:07 -0500 (CDT) | From | Oliver Xymoron <> | Subject | Re: inheritable set [was Re: caps in elf headers: use the sticky bit!] |
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On Sat, 17 Apr 1999, Alexander Viro wrote:
> You don't need *anything* special for that. You don't need > capabilities - file descriptor of the directory will work just fine. Let > the daemon pass it to applications via SCM_RIGHTS (after proper > authentication, indeed) and call fchdir() in the application. Make the > directory inaccessible to anybody except the daemon (no exec for group > and world on parent) and there you go. You'll need to protect the thing > from reaching it via /proc/* - not a big deal.
This requires you to have a long-running daemon. If the MTA dies or gets DOSed, then not only does mail stop getting moved, it stops getting queued as well. Unacceptable.
-- "Love the dolphins," she advised him. "Write by W.A.S.T.E.."
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