DragonFly users List (threaded) for 2008-12
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DragonFly users List (threaded) for 2008-12
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Re: PPTP VPN client

From: "Dennis Melentyev" <dennis.melentyev@xxxxxxxxx>
Date: Fri, 5 Dec 2008 22:22:56 +0200


2008/12/5 YONETANI Tomokazu <qhwt+dfly@les.ath.cx>:
> On Fri, Dec 05, 2008 at 11:59:03AM +0200, Dennis Melentyev wrote:
>> In FreeBSD ports exists an mpd daemon for PPTP connections. I hardly
>> can find it in pkgsrc (well, it's not portable enough).
> I've written a pkgsrc package for older version (mpd-3.18)
>  http://les.ath.cx/DragonFly/dfly2_0-pkgsrc-mpd-3.18.tar.gz
The connection fails for some reason.
Firefox says "The connection to the server was reset while the page was loading"
Could you please check your server?

> and been using here for my PPPoE and PPTP connections.
> For some reason netgraph modules need to be loaded with kldload command
> or it just won't work (I seem to recall this started at some point around
> 1.10-RELEASE, but I haven't managed to track down yet).  If you're using
> GENERIC kernel it means you need to compile a kernel without netgraph
> modules compiled in, so at the moment mpd is not your choice.

Yes, it's GENERIC, UP.
Can try to build onw w/o NG

> Also it seems that ng_pptpgre module (or other modules it depends on) has
> some race problem, so if you have `options INVARIANTS' in your kernel
> config, you'll often experience kernel panics.  UP kernel is affected by
> this problem, too.  The following bandaid seems to stop the panic, but
> I occasionally receive `deadlock avoided' error while using rdesktop
> to connect to a Windows PC in my office, and in that case, the TCP
> connection dies.
> --- a/sys/netgraph/pptpgre/ng_pptpgre.c
> +++ b/sys/netgraph/pptpgre/ng_pptpgre.c
> @@ -556,8 +556,10 @@ ng_pptpgre_xmit(node_p node, struct mbuf *m, meta_p meta)
>        NG_SEND_DATA(error, priv->lower, m, meta);
>        /* Start receive ACK timer if data was sent and not already running */
> -       if (error == 0 && gre->hasSeq && priv->xmitSeq == priv->recvAck + 1)
> +       if (error == 0 && gre->hasSeq && priv->xmitSeq == priv->recvAck + 1) {
> +               ng_pptpgre_stop_recv_ack_timer(node);
>                ng_pptpgre_start_recv_ack_timer(node);
> +       }
>        return (error);
>  }
>> What could be used on DFBSD (client side) to create PPTP tunnel with
>> MPPC/MPPE without involving manual build from sources?
> net/pptp?
It says "no encription yet" or so. :(

Dennis Melentyev

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