include/sys/mount.h

   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 2014 Garrett D'Amore <garrett@damore.org>
  28  *
  29  * Copyright (c) 1996, 1999 by Sun Microsystems, Inc.
  30  * All rights reserved.
  31  */
  32
  33 #ifndef _SYS_MOUNT_H
  34 #define _SYS_MOUNT_H
  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_FORCE        0x0400  /* Forced unmount */
  52 #define MS_NOMNTTAB     0x0800  /* Don't show mount in mnttab */
  53 /*
  54  * Additional flag bits that domount() is prepared to interpret, but that
  55  * can't be passed through mount(2).
  56  */
  57 #define MS_SYSSPACE     0x0008  /* Mounta already in kernel space */
  58 #define MS_NOSPLICE     0x1000  /* Don't splice fs instance into name space */
  59 #define MS_NOCHECK      0x2000  /* Clustering: suppress mount busy checks */
  60 /*
  61  * Mask to sift out flag bits allowable from mount(2).
  62  */
  63 #define MS_MASK \
  64         (MS_RDONLY|MS_FSS|MS_DATA|MS_NOSUID|MS_REMOUNT|MS_NOTRUNC|MS_OVERLAY|\
  65             MS_OPTIONSTR|MS_NOMNTTAB)
  66
  67 /*
  68  * Mask to sift out flag bits allowable from umount2(2).
  69  */
  70
  71 #define MS_UMOUNT_MASK  (MS_FORCE)
  72
  73 /*
  74  * Maximum option string length accepted or returned by mount(2).
  75  */
  76 #define MAX_MNTOPT_STR  1024    /* max length of mount options string */
  77
  78 #if !defined(_KERNEL)
  79 int mount(const char *, const char *, int, ...);
  80 int umount(const char *);
  81 int umount2(const char *, int);
  82 #endif
  83
  84 #ifdef  __cplusplus
  85 }
  86 #endif
  87
  88 #endif  /* _SYS_MOUNT_H */