1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T     */
  23 /*        All Rights Reserved   */
  24 
  25 
  26 /*
  27  * Copyright (c) 1996, 1999 by Sun Microsystems, Inc.
  28  * All rights reserved.
  29  */
  30 
  31 #ifndef _SYS_MOUNT_H
  32 #define _SYS_MOUNT_H
  33 
  34 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 11.10 */
  35 
  36 #ifdef  __cplusplus
  37 extern "C" {
  38 #endif
  39 
  40 /*
  41  * Flag bits passed to mount(2).
  42  */
  43 #define MS_RDONLY       0x0001  /* Read-only */
  44 #define MS_FSS          0x0002  /* Old (4-argument) mount (compatibility) */
  45 #define MS_DATA         0x0004  /* 6-argument mount */
  46 #define MS_NOSUID       0x0010  /* Setuid programs disallowed */
  47 #define MS_REMOUNT      0x0020  /* Remount */
  48 #define MS_NOTRUNC      0x0040  /* Return ENAMETOOLONG for long filenames */
  49 #define MS_OVERLAY      0x0080  /* Allow overlay mounts */
  50 #define MS_OPTIONSTR    0x0100  /* Data is a an in/out option string */
  51 #define MS_GLOBAL       0x0200  /* Clustering: Mount into global name space */
  52 #define MS_FORCE        0x0400  /* Forced unmount */
  53 #define MS_NOMNTTAB     0x0800  /* Don't show mount in mnttab */
  54 /*
  55  * Additional flag bits that domount() is prepared to interpret, but that
  56  * can't be passed through mount(2).
  57  */
  58 #define MS_SYSSPACE     0x0008  /* Mounta already in kernel space */
  59 #define MS_NOSPLICE     0x1000  /* Don't splice fs instance into name space */
  60 #define MS_NOCHECK      0x2000  /* Clustering: suppress mount busy checks */
  61 /*
  62  * Mask to sift out flag bits allowable from mount(2).
  63  */
  64 #define MS_MASK \
  65         (MS_RDONLY|MS_FSS|MS_DATA|MS_NOSUID|MS_REMOUNT|MS_NOTRUNC|MS_OVERLAY|\
  66             MS_OPTIONSTR|MS_GLOBAL|MS_NOMNTTAB)
  67 
  68 /*
  69  * Mask to sift out flag bits allowable from umount2(2).
  70  */
  71 
  72 #define MS_UMOUNT_MASK  (MS_FORCE)
  73 
  74 /*
  75  * Maximum option string length accepted or returned by mount(2).
  76  */
  77 #define MAX_MNTOPT_STR  1024    /* max length of mount options string */
  78 
  79 #if defined(__STDC__) && !defined(_KERNEL)
  80 int mount(const char *, const char *, int, ...);
  81 int umount(const char *);
  82 int umount2(const char *, int);
  83 #endif
  84 
  85 #ifdef  __cplusplus
  86 }
  87 #endif
  88 
  89 #endif  /* _SYS_MOUNT_H */