From: "Clayton Weaver" <cgweav@email.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] new syscall: flink
Date: Thu, 10 Apr 2003 17:10:39 -0500 [thread overview]
Message-ID: <20030410221040.3631.qmail@email.com> (raw)
One other thing: why O_CANLINK (suggested flag
to open) instead of O_NOLINK?
It seems to me that for the vast majority of
open()calls, you don't care whether the open
fd can be flink()ed to, because you don't pass
the file descriptor to an untrusted process.
A bit set to eliminate that capability is
the new feature one might need for security reasons with an implemented flink() call
available to programmers.
Seems like leaving "can be linked to" as the default setting and having an explicit flag
to prevent that would be more efficient.
Regards,
Clayton Weaver
<mailto: cgweav@email.com>
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next reply other threads:[~2003-04-10 21:59 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-10 22:10 Clayton Weaver [this message]
2003-04-11 1:02 ` [PATCH] new syscall: flink David Wagner
-- strict thread matches above, loose matches on Subject: below --
2003-04-11 17:11 Clayton Weaver
2003-04-10 0:31 Clayton Weaver
2003-04-08 13:06 Chuck Ebbert
2003-04-07 23:57 Chuck Ebbert
2003-04-07 16:50 Clayton Weaver
2003-04-07 17:11 ` Arjan van de Ven
2003-04-07 17:37 ` David Wagner
2003-04-07 18:43 ` Werner Almesberger
2003-04-08 5:06 ` Werner Almesberger
2003-04-07 20:35 ` H. Peter Anvin
2003-04-07 9:01 Clayton Weaver
[not found] <20030407102005.4c13ed7f.manushkinvv@desnol.ru>
[not found] ` <200304070709.h37792815083@mozart.cs.berkeley.edu>
2003-04-07 7:35 ` Vitaly
2003-04-07 14:57 ` H. Peter Anvin
2003-04-07 18:47 ` Wichert Akkerman
2003-04-07 20:05 ` Bill Rugolsky Jr.
2003-04-07 20:32 ` H. Peter Anvin
2003-04-07 2:56 Mark Grosberg
2003-04-07 3:39 ` H. Peter Anvin
2003-04-07 7:29 ` Miquel van Smoorenburg
2003-04-07 8:18 ` Olivier Galibert
2003-04-07 8:35 ` Jakub Jelinek
2003-04-07 9:11 ` Olivier Galibert
2003-04-07 11:13 ` Alan Cox
2003-04-07 12:31 ` Roman Zippel
2003-04-07 12:54 ` Andreas Schwab
2003-04-07 13:19 ` Roman Zippel
2003-04-07 20:55 ` Fredrik Tolf
2003-04-07 21:43 ` Ulrich Drepper
2003-04-07 22:17 ` Fredrik Tolf
2003-04-07 22:25 ` Ulrich Drepper
2003-04-07 22:55 ` Fredrik Tolf
2003-04-06 19:05 Dan Kegel
2003-04-06 19:07 ` Dan Kegel
2003-04-06 19:56 ` Oliver Neukum
2003-04-06 20:08 ` Malcolm Beattie
2003-04-06 20:33 ` Oliver Neukum
2003-04-06 21:12 ` Alan Cox
2003-04-07 2:33 ` H. Peter Anvin
2003-04-07 2:29 ` David Wagner
2003-04-07 9:09 ` Malcolm Beattie
2003-04-07 11:02 ` Olivier Galibert
2003-04-07 5:25 ` H. Peter Anvin
2003-04-07 6:43 ` David Wagner
2003-04-07 6:21 ` Vitaly
2003-04-07 16:17 ` Shaya Potter
2003-04-06 18:39 Ulrich Drepper
2003-04-07 17:35 ` Linus Torvalds
2003-04-07 20:37 ` H. Peter Anvin
2003-04-08 0:23 ` Ulrich Drepper
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