in-kernel tcp server

[Julian Elischer]

Nicolas Cormier wrote:
> Hi,
> 
> I'm trying to write a little tcp-server kernel module (like tftp).
> I didn't find a lot of documents about the kernel network programming,
> just one thread which talks about netgraph.
> In the freebsd includes I found /usr/include/sys/socketvar.h (so*).
> 
> What's the easy way to create a basic tcp server
> (create/bind/listen/accept/send/recv) : use netgraph's ksocket or so*
> ?
> 
> Thanks in advance !
> PS: the whole job must be done in the kernel.



yes it can (and has been) done..
John Polstra did it many years ago.. using netgraph ksockets.
He had an in-kernel web server.
At least I THINK it was him :-)