This patch "in itself" is not that complex, but the implications on
testing ("run server and client on the same machine, do a full 'ping'
or even 'http' through the tunnel without namespace/VRF/... support")
are very nice :-) 

Stared-at-code, fed to GHA and local test builds, and ran one of
my t_client.rc stanzas with

  ... --dev-node $path/lwipovpn --ifconfig-noexec --route-noexec

and lo and behold :-)

lwipovpn init complete: type=tun mtu=1500 local_ip=10.194.2.54 netmask=(not 
set) gw=(not set) local_ipv6=FD00:ABCD:194:2::100C

  ... ping through the tunnel works.

This patch itself is still rough (needs explicit --ifconfig-noexec, 
triggers some warnings about "ifconfig_netmask=(not set)", etc.) but
that is fixed by the following patches in the series.

As discussed on IRC and noted in Gerrit, I have unwrapped the
missing-space-word-wrapped "offload" - our 80 char line length is
a somewhat soft limit, in case wrapping gets even more ugly.

Your patch has been applied to the master branch.

commit d0a93625a335fdc42fff808c9e9d2b62b232eef2
Author: Arne Schwabe
Date:   Tue Sep 24 13:01:29 2024 +0200

     Introduce DRIVER_AFUNIX backend for use with lwipovpn

     Signed-off-by: Arne Schwabe <a...@rfc2549.org>
     Acked-by: Gert Doering <g...@greenie.muc.de>
     Message-Id: <20240924110130.3910-1-g...@greenie.muc.de>
     URL: 
https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg29379.html
     Signed-off-by: Gert Doering <g...@greenie.muc.de>


--
kind regards,

Gert Doering



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