Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

From: david
Date: Thu Jun 21 2007 - 01:31:35 EST


On Thu, 21 Jun 2007, Alexandre Oliva wrote:

On Jun 20, 2007, david@xxxxxxx wrote:

On Wed, 20 Jun 2007, Alexandre Oliva wrote:
Subject: Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

On Jun 20, 2007, Andrew McKay <amckay@xxxxxxxx> wrote:

However, I don't see how this would ever require a company like Tivo
or Mastercard to have their networks play nice with a unit that has
been modified by the end user, potentially opening up some serious
security holes.

Which is why the GPLv3 doesn't make the requirement that you stated.

so if the BIOS checked the checksum of the boot image and if it found
it wasn't correct would disable the video input hardware but let you
boot the system otherwise it would be acceptable to you and the GPLv3?

I don't think so, but IANAL. What do you think? Here's what I
think to be the relevant passages.

[...] The information must suffice to ensure that the continued
functioning of the modified object code is in no case prevented or
interfered with solely because modification has been made.

[...]

The requirement to provide Installation Information does not include
a requirement to continue to provide support service, warranty, or
updates for a work that has been modified or installed by the
recipient, or for the User Product in which it has been modified or
installed. Network access may be denied when the modification
itself materially and adversely affects the operation of the network
or violates the rules and protocols for communication across the
network.

Ok, so if refusing to run software that's tampered with isn't acceptable, and disabling the hardware that would be needed to talk on the network isn't acceptable. how exactly can they prevent a system that's been tampered with from accessing their network? (something even you say they have a right to do)

asking a device that's running software that you haven't verified to give you a checksum of itself isn't going to work becouse the software can just lie to you.

you claim they have this right, but then claim to prohibit every possible method of them excercising that right.

pick one side or the other, you don't get both.

David Lang
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