nfsservctl






nfsservctl − syscall interface to kernel nfs daemon


#include<linux/nfsd/syscall.h>

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

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been replaced by a set of files in the nfsd filesystem; see

    /*
     * 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; };

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

This system call was removed from the Linux kernel in
version 3.1.  Library support was removed from glibc in
version 2.28.

This call is Linux‐specific.













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