The 9P implementation is based on puffs. Its docs/code may be of help.

On Tuesday, October 14, 2014, <lucio@proxima.alt.za> wrote:

> > i use a socks and http proxies running on the plan9 gateway machine
> > to get windows internet connectivity. the plan9 machines just
> > import the /net.alt ipstack from it.
>
> I'm not aware that such tools are in the standard distribution (I have
> plans to install both 9atom and 9front, but not immediately), could
> you give us a pointer or two here?
>
> Also, slightly off topic, I have discovered that NetBSD has a
> "mount_9p", but it is not obvious how it is meant to be used (I get a
> "Rattach not received, got 107) response, but the documentation is
> quite economical regarding authentication).  Does anyone have some
> more details on the implementation and deployment?
>
> Lucio.
>
>
>
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