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# nfsservctl() - Unix, Linux System Call

# NAME

nfsservctl - syscall interface to kernel nfs daemon

# SYNOPSIS

#include <linux/nfsd/syscall.h>

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

# DESCRIPTION

    /*
     * 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;
    };

# RETURN VALUE

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

# CONFORMING TO

This call is Linux-specific.

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