Re: [kvm-unit-tests] Adding the QCBOR library to kvm-unit-tests

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Hi,

On Tue, Mar 15, 2022 at 03:21:39PM +0100, Thomas Huth wrote:
> On 15/03/2022 14.33, Alexandru Elisei wrote:
> > Hi,
> > 
> > Arm is planning to upstream tests that are being developed as part of the
> > Confidential Compute Architecture [1]. Some of the tests target the
> > attestation part of creating and managing a confidential compute VM, which
> > requires the manipulation of messages in the Concise Binary Object
> > Representation (CBOR) format [2].
> > 
> > I would like to ask if it would be acceptable from a license perspective to
> > include the QCBOR library [3] into kvm-unit-tests, which will be used for
> > encoding and decoding of CBOR messages.
> > 
> > The library is licensed under the 3-Clause BSD license, which is compatible
> > with GPLv2 [4]. Some of the files that were created inside Qualcomm before
> > the library was open-sourced have a slightly modified 3-Clause BSD license,
> > where a NON-INFRINGMENT clause is added to the disclaimer:
> > 
> > "THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
> > WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
> > MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE **AND NON-INFRINGEMENT**
> > ARE DISCLAIMED" (emphasis by me on the added clause).
> > 
> > The files in question include the core files that implement the
> > encode/decode functionality, and thus would have to be included in
> > kvm-unit-tests. I believe that the above modification does not affect the
> > compatibility with GPLv2.
> 
> IANAL, but I think it should be ok to add those files to the kvm-unit-tests.
> With regards to the "non-infringement" extension, it seems to be the one
> mentioned here: https://enterprise.dejacode.com/licenses/public/bsd-x11/ ...
> and on the "license condition" tab they mention that it is compatible with
> the GPL. On gnu.org, they list e.g. the
> https://www.gnu.org/licenses/license-list.html#X11License which also
> contains a "non-infringement" statement, so that should really be
> compatible.

Thanks you for the links, I wasn't aware of them. They further confirm that
QCBOR is indeed compatible with GPLv2.

Thanks,
Alex

> 
>  Thomas
> 
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