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12c5ef1fe6
As OpenVPN 2.6+ is doing some adoptions to the license text, all prior contributors need to accept this new text. Unfortunately, Mathieu Giannecchini who implemented the --tls-export-cert feature did not respond at all. Without an explicit acceptance we need to remove this feature to avoid potential legal complications. If this is still a wanted feature, it will need to be re-implemented from scratch. Signed-off-by: David Sommerseth <davids@openvpn.net> Acked-by: Gert Doering <gert@greenie.muc.de> Message-Id: <20231122143101.58483-1-dazo+openvpn@eurephia.org> URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27557.html Signed-off-by: Gert Doering <gert@greenie.muc.de>
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
This version of OpenVPN has mbed TLS support. To enable, follow the
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instructions below:
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To build and install,
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./configure --with-crypto-library=mbedtls
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make
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make install
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This version requires mbed TLS version >= 2.0.0 or >= 3.2.1.
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*************************************************************************
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Warning:
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As of mbed TLS 2.17, it can be licensed *only* under the Apache v2.0 license.
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That license is incompatible with OpenVPN's GPLv2.
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We are currently in the process of resolving this problem, but for now, if you
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wish to distribute OpenVPN linked with mbed TLS, there are two options:
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* Ensure that your case falls under the system library exception in GPLv2, or
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* Use an earlier version of mbed TLS. Version 2.16.12 is the last release
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that may be licensed under GPLv2. Unfortunately, this version is
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unsupported and won't receive any more updates.
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*************************************************************************
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Due to limitations in the mbed TLS library, the following features are missing
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in the mbed TLS version of OpenVPN:
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* PKCS#12 file support
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* --capath support - Loading certificate authorities from a directory
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* Windows CryptoAPI support
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* X.509 alternative username fields (must be "CN")
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Plugin/Script features:
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* X.509 subject line has a different format than the OpenSSL subject line
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* X.509 certificate tracking
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*************************************************************************
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Mbed TLS 3 has implemented (parts of) the TLS 1.3 protocol, but we have disabled
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support in OpenVPN because the TLS-Exporter function is not yet implemented.
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