[WLANware] GSoC 2010: Project IP/UDP encapsulation Kernel module

[marco bonola]

Hi Marek,

thanks for the link. I took a look at te code and I have to say that what
I'm proposing
is different. Even though the BATMAN module does realize IP/UDP
encapsulation by
"exporting" a device to userspace, its approach is different for many
reasons. Just to say
one thing, the BATMAN module makes use of a character device and not a
netdevice. This
changes many things, which I don't think is not useful to discuss in this
mail.

So, if you are saying that we can use the BATMAN kernel module and adapt it
to be
used by the smart-gw (as Saverio was proposing), I agree. Anyway, if we do
so,
we get back to the original point that motived this work, i.e.: we don't
have a "generic"
IPinUDP encapsulation (kernel) module that is independent from a particular
application and from
the IPsec stack.

If, instead, you say that the BATMAN module can be generalized to obtain the
same thing
I am proposing, I don't agree and we can further discuss about that.

Again, I just want to underline that what I am proposing is independent from
OLSR, BATMAN
and any other particular application, and that it can be used in different
contexts.

Ciao
Marco

On Wed, Apr 7, 2010 at 2:08 PM, Marek Lindner <lindner_marek at yahoo.de>wrote:

> On Wednesday 07 April 2010 05:28:05 ZioPRoTo (Saverio Proto) wrote:
> > The Project "IP/UDP encapsulation Kernel module" is an indipendent
> > project from OLSR.
> >
> > The kernel today makes possible to create IP-in-IP of IP-in-GRE
> > tunnels using the "ip" tool. But if you want IP/UDP is not possible to
> > configure the kernel to have such a tunnel. You need some VPN
> > software, like tinc or OpenVPN, maybe you have to use encription even
> > if not needed.
> >
> > Now, if we write this IP/UDP encapsulation module, generic for the
> > Kernel, this can be used on any network with any routing protocol. I
> > guess also the smart-gw feature can use that module instead of the
> > ip-ip.
>
> I suggest having a look into the batman layer 3 sources. There you can find
> a
> kernel module which does exactly what you want:
> http://www.open-mesh.org/browser/trunk/batman/linux/modules
> Although the setup API is a bit batman specifc (the batman daemon
> controlled
> the module) you could easily strip the batman API and replace it with
> something more generic.
>
> Cheers,
> Marek
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