usr/src/uts/common/sys/mntio.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #ifndef _SYS_MNTIO_H
  27 #define _SYS_MNTIO_H
  28
  29 #ifdef  __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  * Mntfs io control commands
  35  */
  36 #define MNTIOC                  ('m' << 8)
  37 #define MNTIOC_NMNTS            (MNTIOC|1)      /* Get # of mounted resources */
  38 #define MNTIOC_GETDEVLIST       (MNTIOC|2)      /* Get mounted dev no.'s */
  39 #define MNTIOC_SETTAG           (MNTIOC|3)      /* Set a tag on a mounted fs */
  40 #define MNTIOC_CLRTAG           (MNTIOC|4)      /* Clear a tag from a fs */
  41 #define MNTIOC_SHOWHIDDEN       (MNTIOC|6)      /* private */
  42 #define MNTIOC_GETMNTENT        (MNTIOC|7)      /* private */
  43 #define MNTIOC_GETEXTMNTENT     (MNTIOC|8)      /* private */
  44 #define MNTIOC_GETMNTANY        (MNTIOC|9)      /* private */
  45
  46 /*
  47  * Private mntfs return codes
  48  */
  49 #define MNTFS_EOF       1
  50 #define MNTFS_TOOLONG   2
  51
  52
  53 #define MAX_MNTOPT_TAG  64      /* Maximum size for a mounted file system tag */
  54
  55 struct mnttagdesc {
  56         uint_t  mtd_major;              /* major number of mounted resource */
  57         uint_t  mtd_minor;              /* minor number of mounted resource */
  58         char    *mtd_mntpt;             /* mount point for mounted resource */
  59         char    *mtd_tag;               /* tag to set/clear */
  60 };
  61
  62 #ifdef _SYSCALL32
  63 struct mnttagdesc32 {
  64         uint32_t        mtd_major;      /* major number of mounted resource */
  65         uint32_t        mtd_minor;      /* minor number of mounted resource */
  66         caddr32_t       mtd_mntpt;      /* mount point for mounted resource */
  67         caddr32_t       mtd_tag;        /* tag to set/clear */
  68 };
  69 #endif /* _SYSCALL32 */
  70
  71
  72 struct mntlookup {
  73         size_t  mtl_mntpt_off;
  74         char    *mtl_mntpt;
  75         major_t mtl_major;
  76         minor_t mtl_minor;
  77         ino64_t mtl_ino;
  78         char    mtl_fstype[_ST_FSTYPSZ];
  79 };
  80
  81 #ifdef _SYSCALL32
  82 struct mntlookup32 {
  83         size32_t        mtl_mntpt_off;
  84         caddr32_t       mtl_mntpt;
  85         major32_t       mtl_major;
  86         minor32_t       mtl_minor;
  87         ino64_t         mtl_ino;
  88         char            mtl_fstype[_ST_FSTYPSZ];
  89 };
  90 #endif /* _SYSCALL32 */
  91
  92 #ifdef  __cplusplus
  93 }
  94 #endif
  95
  96 #endif  /* _SYS_MNTIO_H */