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nfsservctl(2) — Linux manual page

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | STANDARDS | HISTORY | SEE ALSO | COLOPHON

nfsservctl(2)              System Calls Manual             nfsservctl(2)

NAME         top

       nfsservctl - syscall interface to kernel nfs daemon

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <linux/nfsd/syscall.h>

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

DESCRIPTION         top

       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       been replaced by a set of files in the nfsd filesystem; see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         top

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

STANDARDS         top

       Linux.

HISTORY         top

       Removed in Linux 3.1.  Removed in glibc 2.28.

SEE ALSO         top

       nfsd(7)

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                  nfsservctl(2)

Pages that refer to this page: syscalls(2)capabilities(7)


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