Date: Thu, 26 Apr 2012 15:48:52 +0200
From: Gert Doering <gert@...1296...>
Message-ID: <20120426134852.GR1359@...1296...>
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Subject: Re: [Openvpn-devel] [PATCH] Presume that Linux is always IPv6
	capable at build time
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To: Fabian Knittel <fabian.knittel@...1547...>
Cc: David Sommerseth <davids@...1347...>, openvpn-devel@lists.sourceforge.net

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Hi,

On Thu, Apr 26, 2012 at 03:11:54PM +0200, Fabian Knittel wrote:
> Gert appears to be happy, so I'm happy, but I don't quite understand
> what you're saying here. What part broke? HAVE_TUN_PI and HAVE_IPHDR
> aren't always detected although they should be? Or the failed
> detection affects non-Linux systems? Something else? Just curious ...

The actual problem was that the failed detection led to LINUX_IPV6
being set to "0", which in turn led to IPv6 failure on tun interfaces
(due to not taking the extra header bytes on the tun interface into=20
account).

Since this is all legacy stuff anyway, throwing out the #ifdef's and
the detection logic (for stuff we know that *has* to be there on any
Linux version we support) is much easier than trying to make it work.

gert
--=20
USENET is *not* the non-clickable part of WWW!
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rt/
Gert Doering - Munich, Germany                             gert@...1296...
fax: +49-89-35655025                        gert@...1297...

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