NAME

nfsservctl - syscall interface to kernel nfs daemon

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.

/*

 * 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;
};

RETURN VALUE

On success, zero is returned. On error, -1 is returned, and errno is set appropriately.

CONFORMING TO

This call is Linux-specific.

COLOPHON

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