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Re: [ANN] Lunatik -- NetBSD kernel scripting with Lua (GSoC project
On Tue, Oct 12, 2010 at 12:32 AM, David Holland
> On Sat, Oct 09, 2010 at 07:34:43PM -0300, Lourival Vieira Neto wrote:
> > > A signature only tells you whose neck to wring when the script
> > > misbehaves. :-) Since a Lua script running in the kernel won't be
> > > able to forge a pointer (right?), or conjure references to methods or
> > > data that weren't in its environment at the outset, you can run it
> > > in a highly restricted environment so that many kinds of misbehavior
> > > are difficult or impossible. Or I would *think* you can restrict the
> > > environment in that way; I wonder what Lourival thinks about that.
> > I wouldn't say better =). That's exactly how I'm thinking about
> > address this issue: restricting access to each Lua environment. For
> > example, a script running in packet filtering should have access to a
> > different set of kernel functions than a script running in process
> > scheduling.
> ...so what do you do if the script calls a bunch of kernel functions
> and then crashes?
if a script crashes, it raises an exception that can be caught by the
kernel (as an error code)..
Lourival Vieira Neto
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