include/os/freebsd/spl/sys/vfs.h

   1 /*
   2  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 #ifndef _OPENSOLARIS_SYS_VFS_H_
  30 #define _OPENSOLARIS_SYS_VFS_H_
  31
  32 #include <sys/param.h>
  33 #include <sys/proc.h>
  34 #include <sys/vnode.h>
  35
  36 #define rootdir rootvnode
  37
  38 struct thread;
  39 struct vnode;
  40 typedef struct mount    vfs_t;
  41
  42 typedef int     umode_t;
  43
  44 #define vfs_flag        mnt_flag
  45 #define vfs_data        mnt_data
  46 #define vfs_count       mnt_ref
  47 #define vfs_fsid        mnt_stat.f_fsid
  48 #define vfs_bsize       mnt_stat.f_bsize
  49 #define vfs_resource    mnt_stat.f_mntfromname
  50
  51 #define v_flag          v_vflag
  52 #define v_vfsp          v_mount
  53
  54 #define VFS_RDONLY      MNT_RDONLY
  55 #define VFS_NOSETUID    MNT_NOSUID
  56 #define VFS_NOEXEC      MNT_NOEXEC
  57
  58 #define VROOT           VV_ROOT
  59
  60 #define XU_NGROUPS      16
  61
  62 /*
  63  * Structure defining a mount option for a filesystem.
  64  * option names are found in mntent.h
  65  */
  66 typedef struct mntopt {
  67         char    *mo_name;       /* option name */
  68         char    **mo_cancel;    /* list of options cancelled by this one */
  69         char    *mo_arg;        /* argument string for this option */
  70         int     mo_flags;       /* flags for this mount option */
  71         void    *mo_data;       /* filesystem specific data */
  72 } mntopt_t;
  73
  74 /*
  75  * Flags that apply to mount options
  76  */
  77
  78 #define MO_SET          0x01            /* option is set */
  79 #define MO_NODISPLAY    0x02            /* option not listed in mnttab */
  80 #define MO_HASVALUE     0x04            /* option takes a value */
  81 #define MO_IGNORE       0x08            /* option ignored by parser */
  82 #define MO_DEFAULT      MO_SET          /* option is on by default */
  83 #define MO_TAG          0x10            /* flags a tag set by user program */
  84 #define MO_EMPTY        0x20            /* empty space in option table */
  85
  86 #define VFS_NOFORCEOPT  0x01            /* honor MO_IGNORE (don't set option) */
  87 #define VFS_DISPLAY     0x02            /* Turn off MO_NODISPLAY bit for opt */
  88 #define VFS_NODISPLAY   0x04            /* Turn on MO_NODISPLAY bit for opt */
  89 #define VFS_CREATEOPT   0x08            /* Create the opt if it's not there */
  90
  91 /*
  92  * Structure holding mount option strings for the mounted file system.
  93  */
  94 typedef struct mntopts {
  95         uint_t          mo_count;               /* number of entries in table */
  96         mntopt_t        *mo_list;               /* list of mount options */
  97 } mntopts_t;
  98
  99 void vfs_setmntopt(vfs_t *vfsp, const char *name, const char *arg,
 100     int flags __unused);
 101 void vfs_clearmntopt(vfs_t *vfsp, const char *name);
 102 int vfs_optionisset(const vfs_t *vfsp, const char *opt, char **argp);
 103 int mount_snapshot(kthread_t *td, vnode_t **vpp, const char *fstype,
 104     char *fspath, char *fspec, int fsflags, vfs_t *parent_vfsp);
 105
 106 typedef uint64_t        vfs_feature_t;
 107
 108 #define VFSFT_XVATTR            0x100000001     /* Supports xvattr for attrs */
 109 #define VFSFT_CASEINSENSITIVE   0x100000002     /* Supports case-insensitive */
 110 #define VFSFT_NOCASESENSITIVE   0x100000004     /* NOT case-sensitive */
 111 #define VFSFT_DIRENTFLAGS       0x100000008     /* Supports dirent flags */
 112 #define VFSFT_ACLONCREATE       0x100000010     /* Supports ACL on create */
 113 #define VFSFT_ACEMASKONACCESS   0x100000020     /* Can use ACEMASK for access */
 114 #define VFSFT_SYSATTR_VIEWS     0x100000040     /* Supports sysattr view i/f */
 115 #define VFSFT_ACCESS_FILTER     0x100000080     /* dirents filtered by access */
 116 #define VFSFT_REPARSE           0x100000100     /* Supports reparse point */
 117 #define VFSFT_ZEROCOPY_SUPPORTED        0x100000200
 118                                 /* Support loaning /returning cache buffer */
 119
 120 #include <sys/mount.h>
 121 #endif  /* _OPENSOLARIS_SYS_VFS_H_ */