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.\" %%%LICENSE_START(PUBLIC_DOMAIN)
.\" This text is in the public domain.
.\" %%%LICENSE_END
.\"
.TH NFSSERVCTL 2 2017-09-15 "Linux" "Linux Programmer's Manual"
.SH NAME
nfsservctl \- syscall interface to kernel nfs daemon
.SH SYNOPSIS
.nf
.B #include <linux/nfsd/syscall.h>
.PP
.BI "long nfsservctl(int " cmd ", struct nfsctl_arg *" argp ,
.BI " union nfsctl_res *" resp );
.fi
.SH DESCRIPTION
.IR Note :
Since Linux 3.1, this system call no longer exists.
It has been replaced by a set of files in the
.I nfsd
filesystem; see
.BR nfsd (7).
.PP
.in +4n
.EX
/*
* These are the commands understood by nfsctl().
*/
#define NFSCTL_SVC 0 /* This is a server process. */
#define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */
#define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */
#define NFSCTL_EXPORT 3 /* Export a filesystem. */
#define NFSCTL_UNEXPORT 4 /* Unexport a filesystem. */
#define NFSCTL_UGIDUPDATE 5 /* Update a client's UID/GID map
(only in Linux 2.4.x and earlier). */
#define NFSCTL_GETFH 6 /* Get a file handle (used by mountd)
(only in Linux 2.4.x and earlier). */
struct nfsctl_arg {
int ca_version; /* safeguard */
union {
struct nfsctl_svc u_svc;
struct nfsctl_client u_client;
struct nfsctl_export u_export;
struct nfsctl_uidmap u_umap;
struct nfsctl_fhparm u_getfh;
unsigned int u_debug;
} u;
}
union nfsctl_res {
struct knfs_fh cr_getfh;
unsigned int cr_debug;
};
.EE
.in
.SH RETURN VALUE
On success, zero is returned.
On error, \-1 is returned, and
.I errno
is set appropriately.
.SH CONFORMING TO
This call is Linux-specific.
.SH COLOPHON
This page is part of release 4.16 of the Linux
.I man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
\%https://www.kernel.org/doc/man\-pages/.
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