Re: Sandboxing

["João Távora" <joaotavora@gmail.com>]

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