GPL Enforcement: Don't Jump to Conclusions, But Do Report Violations

Posted by Tux De Luxe at 17:09 09/11/2009
GPL Enforcement: Don't Jump to Conclusions, But Do Report Violations: "

Blog post by Bradley M. Kuhn. Please email any comments on this entry to <bkuhn@softwarefreedom.org>.


[ Crossposted
from Bradley
M. Kuhn's blog. ]

As some who follow
my microblog know, I've
been on a mission in recent months to establish just how common and
mundane GPL violations are. Since 21 August 2009, I've been finding one
new GPL violating company per day (on average) and I am still on target
to find one per day for 365 days straight. When I tell this to people
who are new to GPL enforcement, they are surprised and impressed.
However, when I tell people who have done GPL enforcement themselves,
they usually say some version of: Am I supposed to be impressed by
that? Couldn't a monkey do that? Fact is, the latter are a little
bit right: there are so many GPL violations that I might easily be able
to go on finding one per day for two years straight.



In short, GPL violations are common and everyday occurrences. I
believe firmly they should be addressed, and I continue to dedicate much
of my life to resolve them. However, finding yet another GPL violation
isn't a huge and earth-shaking discovery. Indeed, it's what I was doing
today to kill time while drinking my Sunday morning coffee.



I don't mean to imply that I don't appreciate greatly when folks find
new GPL violations. I think finding and reporting GPL violations is a
very valuable service, and I wouldn't spend so much time finding them
myself if I didn't value the work highly. But, the work is more akin to
closing annoying bugs than it is to launching a paradigm-shifting FLOSS
project. Closing bugs is an essential part of FLOSS development, but no
one blogs about every single bug they close (although maybe we do
microblog them ;).



Having this weekend witnessed another community tempest about a
potential GPL violation, I decided to share a few guidelines that I
encourage everyone to follow when finding a GPL violation. (In other
words, what follows are a some basic guidelines for reporting
violations; other such guides are also available
at the
FSF's site
and the
gpl-violations.org site.)



  • Assume the violation is an oversight or an accident by the violator
    until you have clear evidence that tells you differently. I'd say
    that 98% of the violation I've ever worked on since 1998 have been
    unintentional and due primarily to negligence, not malice.



  • Don't go public first. Back around late 1999, when I
    found my first GPL violation from scratch, I wanted to post it to every
    mailing list I could find and shame that company that failed to respect
    and cooperate with the software freedom community. I'm glad that I
    didn't do that, because I've since seen similar actions destroy the
    lines of communication with violators, and make resolution tougher.
    Indeed, I believe that if the Cisco/Linksys violations had not been a
    center of public ridicule in 2003 when I (then at the FSF) was in the
    midst of negotiating with them for compliance, we would not have ended
    up with such
    a long
    saga
    to resolution.



  • Do contact the copyright holders, or their designated
    enforcement agents. Since
    the GPL
    is a copyright license    , if the violator fails to comply on their own,
    only the copyright holder (typically) has the power to enforce the
    license0.
    Here's a list of contact addresses that I know for reporting various
    violations (if you know more such addresses, please let me know and I'll
    add them here):


    If the GPL'd project you've found a violation on isn't on the list above,
    just find email addresses of people with commit access to the repository
    for the project or with email addresses in the MAINTAINERS or CONTRIBUTORS
    files. It's better not to post the violation to a public discussion list
    for the project, as that's just “going public”.



  • Never treat a “community violator” the same way as a
    for-profit violator. I believe there is a fundamental difference
    between someone who makes a profit during the act of infringement than
    someone who merely seeks to contribute as a volunteer and screws
    something up. There isn't a perfect line between the two — it's a
    spectrum. However, those who don't make any money from their
    infringement are probably just confused community members who
    misunderstood the GPL and deserve pure education and non-aggressive
    enforcement. Those who make money from the infringement deserve some
    friendly education too, of course, but ultimately they are making a
    profit by ignoring the rights of their users. I think these situations
    are fundamentally different, and deserve different tactics.



  • Once you've reported a violation, please be patient with those of us
    doing enforcement. There are always hundreds of GPL violations that
    need action, and there are very few of us engaged in regular and active
    enforcement. Also, most of us try to get compliance not just on the
    copyrights we represent, but all GPL'd software. (This behooves both
    the software freedom community and the violator, as the former wants to
    see broad compliance, and the latter doesn't want to deal with each
    copyright holder individually). Thus, it takes much time and effort to
    do each enforcement action. So, when you report a new violation, it
    might take some time for the situation to resolve.



  • Do try your best to request source from the violator
    on your own. While making the violation public doesn't help, inquiring
    privately does often help. If you have received distribution of a
    binary that you think is GPL'd or LGPL'd (or used a network service that
    you think is AGPL'd), do write to the violator (typically best to use the
    technical support channels) and ask for the complete and corresponding
    source code. Be as polite and friendly as possible, and always assume
    it is their intention to comply until you have specific evidence that
    they don't intend to do so.



  • Share as much good information with the violator as you can to
    encourage their compliance. My colleagues and
    I wrote A
    Practical Guide to GPL Compliance     for just this purpose.




We need a careful balance regarding GPL enforcement. Remember that the
primary goal of the GPL is encourage more software freedom in the world.
For many violators, the first experience the violator has with FLOSS is
an enforcement action. We therefore must ensure that enforcement action
is reasonable and friendly. I view every GPL violator as a potential
FLOSS contributor, and try my best to open every enforcement action with
that attitude. I am human and thus sometimes become more frustrated
with uncooperative violators than I should be. However, striving for
kindness with violators only helps give a great image to the software
freedom community.





0In
some situations, there are a few possibilities for users that
exist if the copyright holder is unable or unwilling to enforce
the GPL. We've actually recently seen an interesting
successful enforcement by a user. I plan to blog in detail
about this soon.

"