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From: "João Távora" <joaotavora@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Sandboxing
Date: Fri, 14 Dec 2018 01:35:07 +0000	[thread overview]
Message-ID: <87efakao1g.fsf@gmail.com> (raw)
In-Reply-To: <jwv4lbjc1if.fsf-monnier+gmane.emacs.devel@gnu.org> (Stefan Monnier's message of "Tue, 11 Dec 2018 14:30:43 -0500")

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>> Providing ways to run Elisp in a confined environment would be useful in
>>> various circumstances, but it's non-trivial.
>> I can understand that, but I'm not proposing a fully hermetic sandbox
>> just something that ameliorates the problem.
>
> I think a first step might be to add a new boolean var
> `disallow-unsafe-effects` and then go through the C code to check this
> var whenever we do something "dangerous" (e.g. change a global var,
> launch a process, ...).
>
> I suspect that a boolean will be too coarse in the long run (we'll
> probably want to split this into different domains, maybe with some kind
> of capabilities, or maybe monitor the effect, or god knows what), but we
> need to start somewhere

Indeed we do.  Just a couple of checks in src/fileio.c, delete_file and
delete_directory_internal would be a great start.  Then a couple more
and so on.

João



      reply	other threads:[~2018-12-14  1:35 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20181204233600.7907.75252@vcs0.savannah.gnu.org>
     [not found] ` <20181204233601.273DD209DC@vcs0.savannah.gnu.org>
2018-12-05  4:34   ` [Emacs-diffs] scratch/allow-custom-load-paths-in-elisp-flymake 4ef9711: Allow custom load paths in elisp's byte-compilation Flymake Stefan Monnier
2018-12-05 15:14     ` João Távora
2018-12-05 20:00     ` Glenn Morris
2018-12-05 20:40       ` João Távora
2018-12-08 13:23         ` Safety of elisp-flymake-byte-compile (Was Re: [Emacs-diffs] scratch/allow-custom-load-paths) João Távora
2018-12-08 15:36           ` Stefan Monnier
2018-12-10  0:20             ` João Távora
2018-12-10  2:22               ` Stefan Monnier
2018-12-10 23:17                 ` João Távora
2018-12-11 14:03                   ` Stefan Monnier
2018-12-14 12:00                     ` João Távora
2018-12-14 12:15                       ` Stefan Monnier
2018-12-14 13:09                         ` João Távora
2018-12-14 13:27                           ` Stefan Monnier
2018-12-14 13:38                             ` João Távora
2018-12-14 14:13                               ` Stefan Monnier
2018-12-11 19:30                   ` Sandboxing (was: Safety of elisp-flymake-byte-compile) Stefan Monnier
2018-12-14  1:35                     ` João Távora [this message]

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