source: rtems/cpukit/libnetworking/sys/mount.h @ 8fc471a5

/*
 * Copyright (c) 1989, 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)mount.h     8.21 (Berkeley) 5/20/95
 * $FreeBSD: src/sys/sys/mount.h,v 1.198 2005/08/06 01:42:04 ssouhlal Exp $
 */

/*
 * $Id$
 */
 
#ifndef _SYS_MOUNT_H_
#define _SYS_MOUNT_H_

#ifndef _KERNEL
#include <sys/ucred.h>
#endif
#include <rtems/bsd/sys/queue.h>

typedef struct fsid { int32_t val[2]; } fsid_t; /* filesystem id type */

/*
 * File identifier.
 * These are unique per filesystem on a single machine.
 */
#define MAXFIDSZ        16

struct fid {
        u_short         fid_len;                /* length of data in bytes */
        u_short         fid_reserved;           /* force longword alignment */
        char            fid_data[MAXFIDSZ];     /* data (variable length) */
};

/*
 * filesystem statistics
 */
#define MFSNAMELEN      16              /* length of type name including null */
#define MNAMELEN        88              /* size of on/from name bufs */

/*
 * User specifiable flags.
 */
#define MNT_RDONLY      0x00000001      /* read only filesystem */
#define MNT_SYNCHRONOUS 0x00000002      /* filesystem written synchronously */
#define MNT_NOEXEC      0x00000004      /* can't exec from filesystem */
#define MNT_NOSUID      0x00000008      /* don't honor setuid bits on fs */
#define MNT_NODEV       0x00000010      /* don't interpret special files */
#define MNT_UNION       0x00000020      /* union with underlying filesystem */
#define MNT_ASYNC       0x00000040      /* filesystem written asynchronously */
#define MNT_NOATIME     0x10000000      /* disable update of file access time */

/*
 * NFS export related mount flags.
 */
#define MNT_EXRDONLY    0x00000080      /* exported read only */
#define MNT_EXPORTED    0x00000100      /* filesystem is exported */
#define MNT_DEFEXPORTED 0x00000200      /* exported to the world */
#define MNT_EXPORTANON  0x00000400      /* use anon uid mapping for everyone */
#define MNT_EXKERB      0x00000800      /* exported with Kerberos uid mapping */
#define MNT_EXPUBLIC    0x20000000      /* public export (WebNFS) */

/*
 * Flags set by internal operations,
 * but visible to the user.
 */
#define MNT_LOCAL       0x00001000      /* filesystem is stored locally */
#define MNT_QUOTA       0x00002000      /* quotas are enabled on filesystem */
#define MNT_ROOTFS      0x00004000      /* identifies the root filesystem */
#define MNT_USER        0x00008000      /* mounted by a user */
#define MNT_IGNORE      0x00800000      /* do not show entry in df */

/*
 * External filesystem command modifier flags.
 * Unmount can use the MNT_FORCE flag.
 */
#define MNT_UPDATE      0x00010000      /* not a real mount, just an update */
#define MNT_DELEXPORT   0x00020000      /* delete export host lists */
#define MNT_RELOAD      0x00040000      /* reload filesystem data */
#define MNT_FORCE       0x00080000      /* force unmount or readonly change */

/*
 * Generic file handle
 */
struct fhandle {
        fsid_t  fh_fsid;        /* Filesystem id of mount point */
        struct  fid fh_fid;     /* Filesys specific id */
};
typedef struct fhandle  fhandle_t;

#ifdef _KERNEL

#else /* !_KERNEL */

#include <sys/cdefs.h>

#endif /* _KERNEL */

#endif /* !_SYS_MOUNT_H_ */