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Received: from localhost (76-250-84-236.lightspeed.austtx.sbcglobal.net [76.250.84.236]) by mail.messagingengine.com (Postfix) with ESMTPA id 6FDBF1080054; Sat, 27 Mar 2021 09:44:36 -0400 (EDT) Date: Sat, 27 Mar 2021 08:44:34 -0500 From: Patrick Williams To: "Giri, Prashanth" Subject: Re: License of generated code by sdbus++ Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="0qfyevJKz+piWmaV" Content-Disposition: inline In-Reply-To: X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "openbmc@lists.ozlabs.org" Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" --0qfyevJKz+piWmaV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 24, 2021 at 08:58:26PM +0000, Giri, Prashanth wrote: I am not a lawyer and I would suggest discussing with your legal team. I am the original author of the majority of the sdbusplus code and especially the auto-generated templates. > I see the sdbusplus library repo itself is Apache Licensed. Am wondering = if the auto generated code from sdbus++ is also Apache ? Did not find any = special wording on the generated code in the license file in the repository. You are correct that we do NOT have any special exemption in the repository like many compiler-compiler or binding-generation libraries might have[1,2]. My opinion is that if you consider the output of the sdbus++ program, which combines your provided YAML with our templates, the bulk of the IP value is contained in the template. The output of the program should be considered a derivative work of the templates themselves[3] and you should follow any requirements imposed by the Apache license on Derivative Works. > Is it safe to mix the generated code with closed (proprietary) sources ? I'm going to assume you agree that the output of the code generator is Apache licensed. Generally, Apache is considered one of the "safest" licenses for commercial (including closed source) and that is a significant reason why it was chosen as the default license for OpenBMC code repositories. The generated code links against the libsdbusplus.so, so in all cases you would be including into your binary image some amount of Apache-licensed code for which you must follow the requirements set out under Redistribution[4]. Using the code generator should not impose additional requirements on you. > Thanks in advance, >=20 > --Prashanth I hope this helps you. 1. https://spdx.org/licenses/GPL-2.0-with-bison-exception.html 2. https://github.com/protocolbuffers/protobuf/blob/master/LICENSE#L29 3. https://github.com/openbmc/sdbusplus/blob/master/LICENSE#L40 4. https://github.com/openbmc/sdbusplus/blob/master/LICENSE#L89 --=20 Patrick Williams --0qfyevJKz+piWmaV Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEBGD9ii4LE9cNbqJBqwNHzC0AwRkFAmBfNsEACgkQqwNHzC0A wRn90BAAkqWBRbJUP0eAR0MgRVVIaakmxt3e3FE9Y0BJpaqvc+KDYIZUamkQu0Ss /KFGArYJPNJQr4NqyMjuHP1JZ97XfQi/gMBqbKFr/U66soe2hzzRzDMsxhj9y4IX +xr+HHV1tOZBuvvWbGCh+tsTa2HSHN7gioguJYoTAwe5b48iiPVV5Xfzh2mTAXAa Cm0eRwzyL19mO64IeExmIeXz/N2jCUMBSFfzhBJTfDVpd8189Bjmk2kEwM4glXZB d1R9kTA4/eDEQR0cNv7zSkDRwrhUhZPR+3KnqSCCMkWCASw3+BPGlmDMkTCIxEEf smbGQlGG5luwacYqCreawxpaSVgmkac4ubNb4iexYxg2555eazGb31agI/NKubQg 5m3xK0fYVcOxyR/W/N3nPmXK9fWcfl6ajXgCAHpcf15GGqBYrrvooSQ42RSN1Mlq tBMgIhOEFybaRVgSfYCerr/x0mDwvP4vF87i4YOv0088YbhN5N4V6rElToeJsaYb QsU5chQOMqsgzD4tccP0X78J09joXYYriQss1X8I6KB8Z0pBIicb5dJgOpIG05LR vQJvsbn42SzWFbBZmHJe7OOh5jzi6kLJObPSravcS4f/edjv1t4/j5TYy5T7muo7 THkrcvPqC2EBF0i9S8mA3n1/HW6OLK+snJ0vY8vQzf/nNhGev6w= =RHWv -----END PGP SIGNATURE----- --0qfyevJKz+piWmaV--