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package neinp

import ""

Package neinp is a toolkit to implement 9p servers.

A 9p filesystem is created by implementing the P2000 interface, which is then used as argument for NewServer. Server can then use an io.ReadWriter supplied to the Serve method handle requests using the aforementioned P2000 implementer.

See for an example.

NB: This isn't really polished yet, things may break.




type NopP2000

type NopP2000 struct{}

NopP2000 is a dummy impementation of interface P2000, returning error for every call. It can be embedded into own implementations if some functions aren't required. For a working mount (with p9p 9pfuse or linux kernel module), at least Version, Attach, Stat, Walk, Open, Read, and Clunk need to be implemented.

func (*NopP2000) Attach

func (*NopP2000) Auth

func (*NopP2000) Close

func (f *NopP2000) Close() error

func (*NopP2000) Clunk

func (*NopP2000) Create

func (*NopP2000) Open

func (*NopP2000) Read

func (*NopP2000) Remove

func (*NopP2000) Stat

func (*NopP2000) Version

func (*NopP2000) Walk

func (*NopP2000) Write

func (*NopP2000) Wstat

type P2000

P2000 is the interface which file systems must implement to be used with Server. To ease implementation of new filesystems, NopP2000 can be embedded. See the types defined in message for documentation of what they do.

type Server

type Server struct {
	Debug bool
	// contains filtered or unexported fields

Server muxes and demuxes 9p messages from a connection, calling the corresponding handlers of a P2000 interface.



package main

import (

func main() {
	fs := &neinp.NopP2000{}

	l, err := net.Listen("tcp", "localhost:9999")
	if err != nil {
		fmt.Println("listen:", err)

	for {
		c, err := l.Accept()
		if err != nil {
			fmt.Println("accept:", err)

		s := neinp.NewServer(fs)
		if err := s.Serve(c); err != nil {
			fmt.Println("serve:", err)

func NewServer

func NewServer(fs P2000) *Server

NewServer returns a Server initialized to use fs for message handling.

func (*Server) Serve

func (s *Server) Serve(rw io.ReadWriter) error

Serve the filesystem on the connection given by rw.

func (*Server) Shutdown

func (s *Server) Shutdown() error

Shutdown serving the filesystem.

Source Files

doc.go nopfs.go server.go


basicPackage basic handles en-/decoding of basic types to 9p wire format.
fidPackage fid supplies a fid type and the usual mutexed map for storing them.
fsPackage fs provides helpers to implement 9p objects: directories and files.
idPackage id provides utility functions to convert unix uid/gid to strings.
messagePackage message contains types for 9p messages.
qidPackage qid provides the qid type and supporting functionality.
statPackage stat provides functionality to handle 9p stat values.
v0.0.0-20210223183118-a76f220d4840 (latest)
Feb 23, 2021
8 packages
Last checked
1 day ago

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