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NAME

       nfsservctl - syscall interface to kernel nfs daemon

LIBRARY

       Standard C library (libc, -lc)

SYNOPSIS

       #include <linux/nfsd/syscall.h>

       long nfsservctl(int cmd, struct nfsctl_arg *argp,
                       union nfsctl_res *resp);

DESCRIPTION

       Note:  Since  Linux 3.1, this system call no longer exists.  It has been replaced by a set
       of files in the nfsd filesystem; see nfsd(7).

           /*
            * 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(8))
                                           (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;
           };

RETURN VALUE

       On success, zero is returned.  On error, -1 is returned, and errno is set to indicate  the
       error.

STANDARDS

       Linux.

HISTORY

       Removed in Linux 3.1.  Removed in glibc 2.28.

SEE ALSO

       nfsd(7)