ggs at shiresoft.com
Thu Dec 16 17:06:50 GMT 1999
> Interesting project--lends some definite credence to Luke's argument that
> functionality could/should be split. Mix and Match ;-)
> (Luke--it's also a reason for you to document your code if you ever
> want anybody to actually use it ;-)
> 1) Licensing. GPL? LGPL? Even the latter has trouble coexisting with
> the former, incidentally.
Currently it was done on behalf of my employer so source is not available
at this time. We'll see what develops as it gets closer to completion.
> 2) How's speed relative to userspace smbd?
As I said I haven't done any exhaustive performance analysis but a
heavily instrumented version of ksmbd uses about 1/2 the cpu resources
of the user space smbd running the same workload (netbench).
> 3) smb.conf: Used at all? New config format?
only to configure nmbd. The user space "helper" daemon is
responsible for all configuration tasks. ksmbd is configured
through /proc entries that it presents.
> 4) How's stability, particularly under high loads?
It was stable enough to run netbench without falling over. It
wasn't really stressed too hard -- I was still getting all of
functionality in. I had to stop working on it to take care of
other areas of the project (writing function specs, project
management, etc) that took all of my time/energy.
> 5) Security. Unless I'm mistaken, buffer overflows are a much more
> worrisome issue in kernel space, because you're talking about *really*
> small chunks of space and *really* sensitive chunks of memory. This
> single fact makes any kernel space network daemon a touchy subject. Not
> that they're all evil--apparently NFS is kernel by necessity, and Linus
> did speak rather highly of that tiny sendfile() http daemon that offloaded
> all dynamic pages to apache. Just that you have to meet a much, much
> higher standard of benefit to override the costs.
My 25+ years have been spent as a kernel hack. So I'm aware of the
dangers associated with errant and/or sloppy kernel code.
> 6) When can we play with it ;-)
I don't know (yet).
TTFN - Guy
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