.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" This text is in the public domain.
.\"
.TH NFSSERVCTL 2 1997-07-16 "Linux 2.1.32" "Linux Programmer's Manual"
.SH NAME
nfsservctl \- syscall interface to kernel nfs daemon
.SH SYNOPSIS
.B #include <linux/nfsd/syscall.h>
.sp
.BI "nfsservctl(int " cmd ", struct nfsctl_arg *" argp ", union nfsctl_res *" resp );
.SH DESCRIPTION
.nf
/*
 * 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 file system. */
#define NFSCTL_UNEXPORT         4       /* unexport a file system. */
#define NFSCTL_UGIDUPDATE       5       /* update a client's UID/GID map. */
#define NFSCTL_GETFH            6       /* get an fh (used by mountd) */

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;
};
.fi
.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.