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From: "Jürg Billeter" <j@bitron.ch>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: new ...at() flag: AT_NO_JUMPS
Date: Sun, 10 Sep 2017 22:26:08 +0200	[thread overview]
Message-ID: <1505075168.5111.45.camel@bitron.ch> (raw)

Hi Al,

Might it make sense to specify these lookup restrictions when opening
the directory (O_ROOT?) instead of specifying it for each lookup with
AT_* (or supporting both)? This might make it more useful when passing
directory fds between processes that do not use seccomp (where
AT_BENEATH could be enforced).

For my sandboxing use case, I'd be happy with either solution, though.
Is there anything I can do to help move this forward?

Best regards,
Jürg

             reply	other threads:[~2017-09-10 20:26 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-10 20:26 Jürg Billeter [this message]
  -- strict thread matches above, loose matches on Subject: below --
2017-04-29 22:04 Al Viro
2017-04-29 23:17 ` Andy Lutomirski
2017-04-29 23:25   ` Al Viro
2017-04-30  1:13     ` Andy Lutomirski
2017-04-30  4:38     ` Matthew Wilcox
2017-04-30 16:10       ` Al Viro
2017-05-01  4:52         ` Andy Lutomirski
2017-05-01  5:15           ` Al Viro
2017-05-01 17:36 ` Jann Horn
2017-05-01 19:37   ` Andy Lutomirski
2017-05-05  0:30   ` Al Viro
2017-05-05  0:44     ` Andy Lutomirski
2017-05-05  1:06       ` Al Viro
2017-05-05  1:27     ` Linus Torvalds
2017-05-05  3:00       ` Al Viro
2017-05-05  4:01         ` Linus Torvalds
2017-05-05  4:31           ` Andy Lutomirski
2017-05-05  2:47     ` Jann Horn
2017-05-05  3:46       ` Linus Torvalds
2017-05-05  4:39         ` Al Viro
2017-05-05  4:44           ` Andy Lutomirski
2017-05-05 20:04             ` Eric W. Biederman
2017-05-05 20:28           ` Eric W. Biederman
2017-05-08 19:34             ` Mickaël Salaün
2017-05-18  8:50     ` David Drysdale

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