Right now, there's no decent userspace server for the 9p filesystem that I can find. (In part because the 9P2000.L spec is an undocumented work in progress.)
The only up-to-date server seems to be virtfs in qemu, which has no TCP transport layer. Are there any plans to: A) Add a TCP transport layer so we can test with something we can intercept/examine/log/redirect with netcat and such? B) Break the 9p server out so it could be built as a standalone userspace program? Rob