Previous versions of the patch had issues with string concatenation
(missing whitespace) - all fixed. Also, the manpage would claim
auto-activation of the feature, which it didn't -> fixed as well :-)
Testing with manual activation of --force-tls-key-material-export led
to the expected result - 2.6 clients could connect fine, 2.5 and earlier
were refused with a clear message:
2024-01-03 18:35:45 AUTH: Received control message: AUTH_FAILED,Client
incompatible with this server. Keying Material Exporters (RFC 5705) support
missing. Upgrade to a client that supports this feature (OpenVPN 2.6.0+).
and on the server
2024-01-03 18:37:52 us=455522
cron2-freebsd-tc-amd64-25/2001:608:0:814::f000:21 peer-id=0 PUSH: client does
not support TLS key material exportbut --force-tls-key-material-export is
enabled.
so, this should help people hitting such a scenario to much better understand
what is happening, and what they can do about it.
For completeness I've tried to test this on a FreeBSD 14 system with
"--providers fips", but failed to set up OpenSSL/FIPS in a way that
actually did anything useful... so I broke check_tls_prf_working()
manually, and the expected "auto-enable option" part works too (in v9).
Your patch has been applied to the master and release/2.6 branch (long-
term compat and better diagnostics).
commit fa7960961415fa4f368e9bbb39dc4047680ff30c (master)
commit b29ada314cc79497a1e50e29b4b72dede2955b3d (release/2.6)
Author: Arne Schwabe
Date: Thu Jan 4 15:02:14 2024 +0100
Check PRF availability on initialisation and add
--force-tls-key-material-export
Signed-off-by: Arne Schwabe <a...@rfc2549.org>
Acked-by: Gert Doering <g...@greenie.muc.de>
Message-Id: <20240104140214.32196-1-g...@greenie.muc.de>
URL:
https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg27924.html
Signed-off-by: Gert Doering <g...@greenie.muc.de>
--
kind regards,
Gert Doering
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