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Samba Team Responds to Microsoft CIFS Spec License

Jeremy Allison - Samba Team writes: "The Samba Team has released a statement regarding the Microsoft CIFS specification license and its effect on Samba. Regards! Jeremy Allison" Reading this and the Microsoft CIFS Technical License raises a number of issues worth considering. The statement maintains that the specification details an old implementation of the SMB/CIFS protocol, one Microsoft itself has abandoned. One wonders if the only reason they release such docs are as props for a court case or something.

35 of 290 comments (clear)

  1. Samba/MS by neksys · · Score: 4, Insightful

    As much as I like and support the Samba team, I think they're going to end up fighting a losing battle here - Microsoft won't give up its stranglehold on any facet of its operating system. And while in the old days, the would have just purchased the entire Samba project, now they have little choice but to try these sneaky strongarm tactics. After all these months/years of bashing the GPL and OSS in general, Microsoft can't just absorb and accept Samba - especially not in front of the courts.

    A thought: How many snippets of Samba code do you think has found its way into, say, Windows 2000?

    1. Re:Samba/MS by TightByte · · Score: 4, Informative

      I believe the poster you replied to asked his question with a jesting undertone, but you afforded him/her the courtesy of a serious reply, and so I'll do the same to you.

      While it's unlikely that Microsoft has used any code from the Samba project, it's certain that they optimised their SMB/CIFS implementation in Windows 2000. And prior to that, it had been verified (and heavily marketed, if you remember) that SGI servers running Samba achieved better performance than Windows NT servers. Hence it is not impossible that this served to motivate Microsoft to improve their implementation, proving how the benefits of GPL'ed code fosters innovation and betterment.

      However, the SMB protocol was not created by Microsoft. If any one entity, corporate or otherwise, is to be credited with the design of this protocol, it is IBM corporation. It IS true that Microsoft then developed the protocol further from its early LANMAN days, however.

    2. Re:Samba/MS by kinkie · · Score: 4, Informative

      Not really. SMB was created by DEC for their Pathworks software and by IBM (see http://samba.anu.edu.au/cifs/docs/what-is-smb.html ).
      Strike one more Microsoft innovation from the list.

      --
      /kinkie
  2. Re:Why... by TightByte · · Score: 5, Informative

    Regardless of whether what you suggest would or would not be legal, it isn't necessary. As the article points out, the document is obsolete and the methods it describes are not even in use by Microsoft anymore. Besides, they are inappropriate for a Posix/Unix implementation, so alternative methods have been in use for some time anyway.

  3. It is interesting... by DaedalusLogic · · Score: 3, Insightful

    To think about what kind of a paradox would be arise when complex licenses overlap. I think a valid point was brought up in why not make alternate documentation that wouldn't refer to the original license... I would think it would put all the liability on the head of someone who wrote the new docs... Personally I wish they could sort it down to plane English and short sentences. Kinda like the ten commandments for users. But someone has to feed all the starving lawyers I guess... lol. Sadly it does come down to how much political pressure and money you can throw at enforcing a license that makes it stand up...

  4. Hmm -- Samba for win32? by Selanit · · Score: 5, Interesting

    Is Samba available for Win32 platforms?

    I know this sounds like a strange question, but consider: Microsoft's SMB-based file sharing system is buggy and insecure. Could Samba be used as a drop-in replacement for regular Windows file sharing?

    E.G.: you don't like Windows file sharing. So, you turn it off and install Samba instead. It works the same -- you wind up with shared folders that appear on the network -- but the sharing is being handled by Samba instead of the vanilla Win32 file sharing.

    Is that possible? Maybe I'm suffering from hallucinations induced by too much Mountain Dew . . .

    1. Re:Hmm -- Samba for win32? by j09824 · · Score: 3, Interesting

      NFS isn't really any better--it just has a different set of problems than SMB. We really need something better in the open soruce community.

  5. Hmm... by Khaed · · Score: 4, Insightful

    Uh, so it's a non-issue?

    That's kind of what I thought when I first heard about this.

    "Microsoft...documented basically what Samba already knows...and doesn't want people to...use the documentation for GNU purposes...Ok...what about what they already have? Oh, not affected? Ok."

    Looks to me like Microsoft just got these reactions: Loving fanboy support(all three of them), people who could care less(most people), people who went into an idiotic rage(a lot, but not a majority), and people who scratched there heads and asked, "So?"(more than the first, less than the other catagories.)

    I mean, basically all they did was brass off some of the geek community and make themselves look, well, dumb. No one really cares about their documentation...do they?

    1. Re:Hmm... by sasha328 · · Score: 3, Insightful

      In this case, there was nothing new, so says the SAMABA people. But what would happens when (notice I didn't say if) MS changes the specs significantly to break the surrent implementation of SAMBA, but before doing this, they release the specs with similar restrictions to what they've just done) That is, no GPLed products? Where would the SAMBA teams stand when they upgrade their implementation?
      * MS to Judge (in case of MS vs SAMBA): Sorry your honour, but they couldn't possibly have reverse engineered the new implementation; they must've used the published specs. This, your honour, violated the (some acronym) law.
      Seems far fetched? I hope so.

  6. Testing Waters by Bouncings · · Score: 5, Insightful

    Although this particularly license has no real implications, and I think we can be sure Microsoft is aware of this, perhaps their is a more sinister goal here: testing the waters of anti-GPL and/or anti-free-software licenses.

    What would happen, for example, if Windows were "licensed" to exclude its use in conjunction with certain free software -- such as -- oh say -- Wine. Wine works better with Windows binary libraries accessible, and Microsoft might be thinking about some kind of anti-free-software clause in the Windows license.

    I suspect this obsolete Samba license is just a beta test of their newest scam.

    --
    -- Ken Kinder ken@_nospam_kenkinder.com http://kenkinder.com/
    1. Re:Testing Waters by Da+Schmiz · · Score: 5, Interesting
      What would happen, for example, if Windows were "licensed" to exclude its use in conjunction with certain free software -- such as -- oh say -- Wine.
      Actually, the latest Wine builds are working better and better even without Microsoft libraries. A far more likely scenario -- and one with a more powerful impact -- would be if MS Office was licensed so that it could only be used with Windows... or if it could only authenticate using Passport, or something along those lines. In fact, I believe that the reason CodeWeavers Office does not yet support MS Office XP has to do with this kind of licensing issue.

      Or worse, what if the Windows EULA was changed to explictly forbid running it in an emulated virtual machine? That would kill VirtualPC, VMware, and plex86 all with one fell swoop -- and drive a lot of users back to the Windows platform.

      You've got a good point. Hopefully, if enough people become aware of the dangerous possibilities of this kind of faux-open documentation licensing, the antitrust people will be able to do something about it.

      --

      "Anything is better than IE, and you can quote me on that." -- Wil Wheaton.

    2. Re:Testing Waters by glwtta · · Score: 4, Funny
      the antitrust people will be able to do something about it

      Yeah, they've got an excellent record so far.

      --
      sic transit gloria mundi
  7. Re:007 by leviramsey · · Score: 4, Funny

    As James Bond said once, "How do you kill a few hours in Rio, if you don't samba?"

  8. Network configuration by totallygeek · · Score: 4, Funny
    So, now we will have this list in the network neighborhood properties?


    Microsoft Client for Microsoft Networks
    Microsoft Client for Netware Networks
    Samba Team Client for What Microsoft Should Use

    1. Re:Network configuration by VValdo · · Score: 5, Funny

      No, cuz when you try to install Samba, you'll now get an error that says:

      "We're sorry, the Network Neighborhood is a Gated community."

      W

      --
      -------------------
      This is my SIG. There are many like it, but this one is mine.
  9. Re:Interesting aspects by yeOldeSkeptic · · Score: 5, Interesting
    When I upgrade to XP or 2002 or whatever, I'm going to want to make sure I'm still able to access the Samba shares. If I can't, I hate to say it, but I may be forced to switch my network storage box to some Windows variant.

    I have a crazy idea. Since Samba is probably used by many Microsoft-oriented shops too, why can't the Samba Team embrace and extend the CIFS protocol? This would be a two pronged attack. One of the prongs would be the Samba Team which will extend the CIFS protocol and publish it under the GPL. The other prong will be a group that will write win32 applications that will take advantage of the Samba extensions to the CIFS and distribute the app for free. Since the OSS community numbers in the thousands at least, this would be very straightforward to accomplish.

    I wonder what Microsoft will do if the Samba extensions to the CIFS become a de-facto standard? When is the next iteration of Windows anyway? Right now could be a window of opportunity just opening up.

    Sigh, I know I'm day dreaming. But, wouldn't it be nice to give MS a dose of its own medicine?

  10. Or... by ashpool7 · · Score: 3, Informative

    Your thoughts could be answered with a simple google search.

    http://main.mswinxp.net/~lpackham/smbclient/

    Of course, it requires Cygwin. But, a drop in replacement for something that is proprietary to begin with and comes bundled with all windows version sounds kind of ridiculous, doesn't it. ;)

    1. Re:Or... by Selanit · · Score: 5, Interesting

      Blockquoth the responder:

      . . . a drop in replacement for something that is proprietary to begin with and comes bundled with all windows version sounds kind of ridiculous, doesn't it. ;)

      Heh.

      Tell that to the Mozilla team, or anybody who's worked on a win32 web browser in the last few years. Internet Explorer is proprietary, comes bundled with all windows versions . . . and it's got a big, red bulls-eye in the middle that all the other browsers are aiming for.

      Thanks for the info on the Cygwin Samba client. I actually did do a couple of Google searches before posting, but evidently I didn't pick the magic words.

  11. Samba lives just until it's really born by jukal · · Score: 3, Interesting

    I hope this is a horror scenario, but happenings similar this are already documented history:
    when and if Samba raises to compete as the file/printer sharing protocol to be installed on Microsoft products instead of Microsoft products, they will just start using client certificates or something to criple Samba access to other MSFT shares. I quess cross-compatibility is not bad enough for MSFT to take action, but dare you replace their perfect piece of software with some GPL crap and you are in trouble.

    I do believe this is a scenario which could happen, maybe the court case changes something and the future is different, but until then they have strong artillery left to "defend the shares" ;))

  12. Performance comparisons by Waffle+Iron · · Score: 5, Informative

    I found the other news link for today on the Samba home page even more interesting. Could this be the motivation behind the strange licensing hijinx?

  13. For the sake of interoperability by fireboy1919 · · Score: 5, Interesting

    ...SMB will have to go away.

    Micro$haft is the main company working on Windows networking protocols, and as has always been the case they don't seem to encourage standards or interoperability.

    I'm thinking a better solution would be to use OpenAFS. It works on Windows and Linux just fine, and its not going to have interoperability problems because all of the stuff is open source.

    I believe its only a short time, maybe a year or four, before M$ doesn't have anything to do with network interoperability software, unless they change their policy.

    A saying comes to mind:
    "The more you tighten your grip, the more star systems will slip through your fingers."

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    1. Re:For the sake of interoperability by Saturn49 · · Score: 3, Interesting



      This is completely flawed logic. Just because something is open source does not mean that it works perfectly, or doesn't have interoperability problems.

      Ever seen an open source FTP client have interoperability problems with an FTP server? How about an open source web browser having problems with an open source web server? It can and does happen.

      I have no problems with finding and using alternatives to Microsoft software. But PLEASE don't assume that because it is open source that it doesn't and won't ever have interoperability problems with another implementation.

    2. Re:For the sake of interoperability by trenton · · Score: 4, Funny

      Yeah. Let's just hope Microsoft doesn't destory Alderan before a "structural remedy" is delivered down their thermal exhaust port.

      --
      Too big to fail? Does that make me to small to succeed?
    3. Re:For the sake of interoperability by coene · · Score: 3, Insightful

      Open Source software does not automatically "play better with friends". SMB is an extreme case where higher-level features of the protocol get constantly added/modified/removed by a proprietary vendor (MS). It's hard to manage (and the Samba team has done an excellent job with this).

      SMB will not go away, much in the same way NFS wont. Its the cornerstone of Microsoft based file/print/resource sharing.

      Market share trumph's evolution.
      Market share trumph's innovation.

  14. Re:Why... by plierhead · · Score: 3, Informative
    What you suggest is not legal.

    By using the original document as input for your document, you are creating a derivative work of it, and you must therefore obey the license you "obtained" the document under.

    You would therefore have no right to issue such a derivative work under the GPL, and you, and anyone who built on your work (and so on down) would have their asses sued off by MS until they stopped.

    Of course you might say "but how would they know I copied/adapted/altered their work" - but thats a different question. If you based your work on theirs you have to obey their rules.

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  15. Re:I'd like to see this in court by MillionthMonkey · · Score: 3, Insightful

    How would Microsoft react if suddenly the open-source community decided that anything under the GNU could not inter-operate with microsoft products? I think MS would flip out kill whole town.
    Microsoft would love this development; it would prevent them from having to do the dirty work themselves. Windows doesn't depend on interoperability with GNU stuff quite as much as GNU depends on interoperability with Windows.

  16. Re:Interesting aspects by Bronster · · Score: 5, Interesting

    I have a crazy idea. Since Samba is probably used by many Microsoft-oriented shops too, why can't the Samba Team embrace and extend the CIFS protocol? This would be a two pronged attack. One of the prongs would be the Samba Team which will extend the CIFS protocol and publish it under the GPL. The other prong will be a group that will write win32 applications that will take advantage of the Samba extensions to the CIFS and distribute the app for free. Since the OSS community numbers in the thousands at least, this would be very straightforward to accomplish.

    This would work so long as there was a compelling advantage (i.e. - lots faster file transfers). There's no point adding extensions just for the hell of it - they have to do something that users want done. Personally I'd like to see SSL support built into SMB, and adding that to the Samba implementation with a seamless Win32 client would be enough for me to switch all the Windows boxen I use to the Samba implementation.

  17. Mischief-making by Observer · · Score: 5, Interesting
    So, it seems that MS spent a little small change cooking up some documentation that raised the possibility that Samba might infringe on some of MS's intellectual property. Samba Team was then obliged to spend (proportionally considerably more) time and resources analysing this suggestion so they can issue a plausible refutation. In the meantime, all the 'careful' line management types whose reason for existence is never to be seen to be responsible for a mistake will have taken the point that deploying Samba is 'risky', and will now have to be persuaded all over again that this particular risk is an acceptable one, and that in this case there was smoke without fire.

    Neat work, MS.

    Fear, Uncertainty, Doubt. You can't choose just two out of the three, they come co-mingled.

  18. Re:Interesting aspects by Technician · · Score: 5

    If I can't, I hate to say it, but I may be forced to switch my network storage box to some Windows variant.

    Wrong answer. I am not obsoleting my entire system because a user adds a new incompatible box. I insist the new stuff is compatible with my LAN. I have the incompatible new box user find and install the drivers needed to access the system. If it can't do SMB and TCP/IP, it's incompatible.

    --
    The truth shall set you free!
  19. Re: Time for something new? by KidSock · · Score: 5, Interesting
    I second this. I think it's high time some people get together and start to think about a network filesystem that addresses all the issues. I don't know much about NFSv3 but historically NFS has huge holes. And RPC is overrated I think. The API just doesn't change enough to warrant it. It's just overhead and an implementation barrier for other languages. How hard is it to serialize data structures for cripes sake. CIFS is actually good to know when considering a new protocol though. It's got a lot of different stuff in there. That's why it sucks but it's useful to how they tried something, saw it fail in some way so they abondonded it and stuck another layer of crap on top to hide the previous layer of crap. It's quite funny to think about the layers. You have:
    • MS/RPC on top of
    • DCE/RPC and
    • Remote Access Protocol (RAP) over
    • Named Pipes on top of
    • Transactions on top of
    • Server Message Block (SMB) on top of
    • NetBIOS
    If you do an RPC call it goes through all of that (minus RAP which is quite dead post NT). A redesign would be trivial to implement by comparison because you could reduce all of that crap to one uniform API.
  20. Re: Time for something new? by benhaha · · Score: 4, Informative

    Firstly MS RPC is not "on top of" DCE RPC. It is an implementation of DCE RPC. Secondly if you make an RPC call, it can go over a variety of transports -- one of the great things about DCE RPC. Most windows boxes from NT4.0 onwards are configured to use IP by default.

    Some more errors:

    • RAP is not a layer in the stack for most of what you describe, only for the actual RAP functions, such as NetShareEnum. Most operations (such as open/read/lock) don't use it at all.
    • Named Pipes are not "on top of" transactions. Transactions are an option for Named Pipes.
    • Named pipes aren't on top of SMB. They are one of the things you can open using SMB, i.e. a type of file in a special part of the filesystem. The analogy is with character or block fifos in unix.
    I might as well say:
    • MIME on top of
    • HTTP on top of
    • TCP on top of
    • IP on top of
    • Ethernet on top of
    • voltages on copper wires

    If you reduced it all down to copper wires imagine how efficient it could be! All you'd need is different voltages! Just code your application to read directly from an ADC!

    --
    NO ID: BEING FREE MEANS NOT HAVING TO PROVE IT
  21. Don't implement windows in SAMBA. by Fuzzums · · Score: 3, Insightful

    Turn it around. Implement SAMBA in windows.
    My FTP-client is integrated in windows, so why don't they make a SAMBA-plugin for windows.
    Don't bow for windows and accept everything they invent.
    This way you can get maximum compatibility between M$ and Linux without nasty M$ licences.

    --
    Privacy is terrorism.
  22. Comment removed by account_deleted · · Score: 3, Informative

    Comment removed based on user account deletion

  23. Re:Interesting aspects by Enry · · Score: 3, Interesting

    Then MS is even more brain dead than I thought.

    I have never seen a case where a printer cannot be shared over the network under UNIX. The printer driver layer and the network printing layer are separated. I always thought it was the same under MS, so every printer could be shared. Then again, I don't use MS as a print server.

  24. Re:Why... by Zeinfeld · · Score: 3, Interesting
    The phone book analogy is not quite relevant because the information in a phone book is public information, and the information in MS documentation is not, and as I recall, it is the public nature of the data in a phone book that was the reason it could not be

    Perhaps a tax on amateur lawyers on slashdot would close the WBush budget deficit and help save social security.

    IANAL but I know the basics of copyright law having spent time trying to stop people extending them. Copyright has no connection to trade secret law as you imply. In fact under European law copyright is a bargain, you get copyright protection in return for disclosure. In the US that bargain aspect has largely been erased as the doctrine of intellectual property as intrinsic right developed.

    The point about the phone book is that copyright is meant to protect only the representation of the idea, not the idea itself. In the case of a phone book the representation is so lacking in creativity - alphabetical order, that there is only an idea.

    The Microsoft 'license' is not something I would want to spend money attempting to enforce. The information in the document is clearly not a trade secret, bars on redistribution of ideas are unlikely to work in a US court. Copyright doctrine even in the US is not favorable.

    What the license does do however is to make it clear that anyone developing a samba type implementation knows that there is a patent on the implementation.

    The license also makes it impossible for someone to claim that they have acquired any rights as a result of a GPL license. While folk on slashdot try to claim otherwise the explicit purpose of RMS's scheme was to make it impossible to sell software. You might think RMS is with you but whatever RedHat and co say, RMS turned down offers to join their advisory boards because their business is contrary to his 'principles'. What this comes down to is that Gates understands what RMS is really up to better than most slashdotters.

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