On Wed, Oct 25, 2006 at 05:06:32PM -0400, Pavel Roskin wrote:
> On Wed, 2006-10-25 at 21:30 +0100, Alan Cox wrote:
> > Ar Mer, 2006-10-25 am 16:11 -0400, ysgrifennodd Pavel Roskin:
> > > I don't see any legal reasons behind this restriction. A driver under
> > > GPL should be able to use any exported symbols. EXPORT_SYMBOL_GPL is a
> > > technical mechanism of enforcing GPL against non-free code, but
> > > ndiswrapper is free. The non-free NDIS drivers are not using those
> > > symbols.
> >
> > The combination of GPL wrapper and the NDIS driver as a work is not free
> > (in fact its questionable if its even legal to ship such a combination
> > together).
>
> So, the problem is on the legal side.
>
> But I have to ask - which NDIS driver? I can write a free NDIS driver
> and use it with ndiswrapper. You can say it's a stupid thing to do, but
> once you talk about the legality, the only argument should be
> legal/illegal. Besides, it may be a not such a bad idea for a ReactOS
> developer writing a ReactOS driver to test it with Linux.
>
> Also, nothing should prevent me from combining ndiswrapper with any
> Windows driver in the privacy of my home as long as I don't distribute
> anything. GPL doesn't have use restrictions (although the driver may
> have an EULA).
>
> Since the problem is with USB symbols, I can split the USB part from
> ndiswrapper and call it ndiswrapper-usb. Then ndiswrapper-usb will be
> calling the GPL-only symbols while ndiswrapper will be loading the
> non-free modules. Good luck catching that! It's actually a change that
> makes sense technically. Imagine what a change specifically intended to
> fool Linux would do!
>
> I don't see how the kernel can detect the cases where GPL is actually
> violated without creating problem for honest users. Kernel code is not
> a police department, let alone a court of law. Let's not create out own
> DRM right in the kernel!
>
> Companies that ship ndiswrapper with non-free modules may be breaking
> copyright laws already. But it's not something that should be fought by
> kernel patches.
No matter how the legal situation looks like: do we *want* to support
drivers that use an API totally alien to Linux concepts?
Personally I feel that no matter if they are legal or not, we should not
cater to such drivers in the first place. If it's trickier to use
Windows API-drivers under Linux than to write a native Linux driver,
big deal... We don't want Windows-drivers. We want native drivers.
Regards: David Weinehall
--
/) David Weinehall <[email protected]> /) Northern lights wander (\
// Maintainer of the v2.0 kernel // Dance across the winter sky //
\) http://www.acc.umu.se/~tao/ (/ Full colour fire (/
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