.\"-
.\" Copyright (c) 2001 Dag-Erling Coïdan Smørgrav
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\"
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.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" $FreeBSD: releng/12.2/share/man/man9/pseudofs.9 267936 2014-06-26 21:44:30Z bapt $
.\"
.Dd April 20, 2007
.Dt PSEUDOFS 9
.Os
.Sh NAME
.Nm pseudofs
.Nd pseudo file system construction kit
.Sh SYNOPSIS
.In fs/pseudofs/pseudofs.h
.\" Insert usage example here
.Sh DESCRIPTION
The
.Nm
module offers an abstract API for pseudo-file systems such as
.Xr procfs 5
and
.Xr linprocfs 5 .
It takes care of all the hairy bits like interfacing with the VFS
system, enforcing access control, keeping track of file numbers, and
cloning files and directories that are process-specific.
The consumer module, i.e., the module that implements the actual guts
of the file system, needs only provide the directory structure
(represented by a collection of structures declared and initialized by
macros provided by
.Nm )
and callbacks that report file attributes or write the actual file
contents into sbufs.
.\" Insert more info here
.Sh SEE ALSO
.Xr linprocfs 5 ,
.Xr linsysfs 5 ,
.Xr procfs 5 ,
.Xr sbuf 9 ,
.Xr vnode 9
.Sh HISTORY
The
.Nm
module appeared in
.Fx 5.0 .
.Sh AUTHORS
The
.Nm
module and this manual page were written by
.An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org .