Emilio Jesús Gallego Arias wrote:
Linus Torvalds <[email protected]> writes:
On Thu, 2 Feb 2006, Pierre Ossman wrote:
The point is not only getting access to the source code, but also being able
to change it. Being able to freely study the code is only half of the beauty
of the GPL. The other half, being able to change it, can be very effectively
stopped using DRM.
No it cannot.
1.- Distribute a kernel with some DRM built-in under the GPL.
2.- Claim that such kernel is an effective technological measure to
protect copyright.
3.- You are no longer free to modify that kernel, (removing the DRM
module) or you can be sued under the DMCA, for circumventing an
effective technological measure. It doesn't matter in what
hardware are you going to run such kernel. The DMCA implicitly
imposes an additional restriction to the GPL, but as the
restriction is not imposed directly by the copyright owner, but by
the law, it's OK as far the GPL is concerned.
This can't legally happen. Do the DMCA prevent "circumventing"
even when you have the legal right to make copies of the content?
(If so, then the music industry breaks DMCA when manufacturing
their protected CDs from a protected master . . .)
If so, then step (1) is illegal because it breaks with the GPL.
Remember, when you distribute something under the GPL, you cannot
impose restrictions. It is well established that you can't link in
something with a more restrictive commercial licence, for example.
I think adding that DRM falls in the same trap - if the DMCA really
impose this additional restriction (because DRM-breaking is illegal
even when content copying is not) then you are not allowed to
add that restriction.
Someone distributing DRM-protected kernels are breaking
copyrigth law then, if the DMCA is so strict.
Helge Hafting
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