[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Userspace PPP a la FreeBSD?

On Tue, Apr 18, 2000 at 11:56:18PM +0100, Adam Sampson wrote:
> On Tue, Apr 18, 2000 at 12:13:30AM +0100, Chris Lingard wrote:
> > PS
> > Please send pppd
> On an alternate tack for getting Hurd a PPP implementation, how about
> implementing a workalike of FreeBSD's "tun" driver and nicking their
> userspace ppp daemon? From the tun(4) manpage:
> It looks like this would be a much easier job to implement than PPP as a
> Hurd server.
I think that would be a very good idea. I actually looked at pppd to see how 
much work would have to be done in order to port it to Hurd. The pppd itself 
is pretty platform independent with the exception of functions that deal with 
the serial port, changing network routes and the like. Also all platform 
dependent functions are bundled together separate from the main code.

Two things stopped me from exploring this further: the lack of a development
Hurd machine and my blatant ignorance regarding network interfaces. For 
example I'd have no idea what kind of functionality a "tun" driver might 

However I do have an idea of what should be done. pfinet must be extended to 
handle multiple interfaces at the same time, and of different types. And 
pfinet must support changing the routing information at runtime. I think there 
was a patch for that floating around, but I didn't look into it much. And then 
the "tun" driver might be implemented. Also having such a generic network 
interface will enable us to support protocols other then PPP, implemented 
outside pfinet and it may even be possible to bring the Ethernet interface 
support out of pfinet as well.


Reply to: