yay, powerloss

Quick question, what 9pfs clients do we have?

who's "we"?

I was pretty sure OI had some, I don't think illumos does

I don't know about omnios

sometimes I think of implementing fs/9p but then I feel better

it looks like oi has at least the virtio transport driver. but trying to mount the filesystem gets me mount -F 9p repo /mnt/repo

mount: Operation not applicable to FSType 9p

So I am wondering if there is a 9pfs driver needed or if that virtio9p driver is also the fs driver

and it seems to come from illumos-gate hence the we as in all of illumos.

there is lib9p that's used by bhyve to act more or less like a 9p server

to implement the host bits for virtio9p

it's been too long now that I can't recall if it could be used as a client

though there'd be some other bits needed for guest support in illumos

right, you'd have to implement fs/9p (and/or have fuse)

using fuse to implement 9p sounds like a bad idea

oh.. there is a kernel driver for vio9p (either missed or forgot about that)...

but if you did do that, plan9 users would be able to mount their text editor, so that's nice

Would that even run on illumos being a plan9 binary and all?

no

And yes that vio9p driver is what I found aswell. it get's me a device under /dev/9p/0

Well then they can at least mount their editor :)

presumably there still needs to be a driver (likely under usr/src/uts/common/fs) to utilize the device in order to mount it

though it seems possible a userland client could use it to access files as well (e.g. like ftp or sftp)

I remember talking to dansup about something 9pfs related but that was long ago.

nope wrong dan

Ah, found 9pfuse :) github.com/9fans/plan9port/tree/master

And my old issue with dancross

I think i give that a go tomorrow. I thought we had a package of that but maybe it got broken

this time we is openindiana :)

toasterson: The vio9p stuff is there to expose the 9P transport with the host

It does not, itself, do any file system stuff

I started on p9fs a few years ago but it's a lot of shenanigans: github.com/jclulow/illumos-gate/tre…e/virtfs/usr/src/uts/common/fs/p9fs

We use a Rust program to fish files out of the virtio thing into a directory, I believe, for some things: github.com/oxidecomputer/p9fs

It's not a file system driver, more like scp(1)