Messages in this thread | | | Date | Sat, 6 Dec 2003 16:19:00 -0500 | From | Theodore Ts'o <> | Subject | Re: Linux GPL and binary module exception clause? |
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On Sat, Dec 06, 2003 at 09:50:41AM -0800, Larry McVoy wrote: > The sticky one is the one where we started, kernel modules. Linus is > saying that kernel modules are covered by the GPL because they are > combined with the kernel. I think his reasoning is weak and unlikely > to be upheld by the courts. If we remove the issue of inline functions > for a moment then we are talking about pure API's and there is no way > that the courts are going to uphold that a copyright license can cross a > pure API (famous last words). Well, no way if both sides of the dispute > have equally good lawyers, without that who knows.
I had a law professor from the MIT Sloan School of Technology, who when I posed the question informally, said that the FSF would be laughed out of court if they tried to claim that the GPL infected across API's. But Larry's right, in the U.S. at least, you get the best justice money can buy, and with enough high-paid lawyers and lobbyist, you can probably pervert the system any way you like --- witness the RIAA and DMCA.
But that aside, does the Open Source community really want to push for the legal principal that just because you write an independent program which uses a particular API, the license infects across the interface? That's essentially interface copyrights, and if say the FSF were to file an amicus curiae brief support that particular legal principle in an kernel modules case, it's worthwhile to think about how Microsoft and Apple could use that case law to f*ck us over very badly.
It would mean that we would not be able to use Microsoft DLL's in programs like xine. It would mean that programs like Crossover office wouldn't work. It would mean that Apple could legally prohibit people from writing enhancements to MacOS (for example, how do all of the various extensions in Mac OS 9 work? They link into the operating system and modify its behaviour. If they are therefore a derived work of MacOS, then Apple could screw over all of the people who write system extensions of MacOS.)
Be careful of what you wish for, before you get it. The ramifications of the statement that just because a device driver is written for Linux, that it is presumptively a derived work of Linux unless proven otherwise, is amazingly scary. Fortunately, we can hope that the law professor I talked to was right, and that such a claim would be laughed out of court. But if it isn't, look to Microsoft and other unsavory companies to use that kind of case law to completely screw us to the wall.....
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