On Tue, 2 Nov 2004, Mathias Sundman wrote:
> James,
>
> I think we made a little misstake with the "auto-find free TAP device"
> feature.
>
> In OpenVPN GUI >= beta20 I close the connections and restart them after a
> suspend. If multiple connections were running this means that they
> will all be re-started at the exact same time after the suspend.
>
> I suppose the same thing happends when you start the service wrapper.
>
> Anyway, I had two connections running, and after a suspend, one of the
> connections started fine, but the other one failed with the following
> message:
>
> CreateFile failed on TAP device:
> \\.\Global\{75E5A03B-F1A9-422E-8DBA-EFF4B55C1B07}.tap:
> General failure (ERROR_GEN_FAILURE) (errno=31)
>
> which is the same interface as the first connection used.
>
> I havn't checked the code yet, but I suspect that you changed the code to
> search for a free adapter when openvpn is started, but not actually open
> it until later.
Yes, we will probably need to set IFCONFIG_AFTER_TUN_OPEN for Windows, to
avoid the double-open race.
James
