FreeBSD/Linux Kernel Cross Reference
sys/cddl/compat/opensolaris/sys/vfs.h

     /*-
      * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _OPENSOLARIS_SYS_VFS_H_
    #define _OPENSOLARIS_SYS_VFS_H_
    
    #include <sys/param.h>
    
    #ifdef _KERNEL
    
    #include <sys/mount.h>
    #include <sys/vnode.h>
    
    #define rootdir rootvnode
    
    typedef struct mount    vfs_t;
    
    #define vfs_flag        mnt_flag
    #define vfs_data        mnt_data
    #define vfs_count       mnt_ref
    #define vfs_fsid        mnt_stat.f_fsid
    #define vfs_bsize       mnt_stat.f_bsize
    #define vfs_resource    mnt_stat.f_mntfromname
    
    #define v_flag          v_vflag
    #define v_vfsp          v_mount
    
    #define VFS_RDONLY      MNT_RDONLY
    #define VFS_NOSETUID    MNT_NOSUID
    #define VFS_NOEXEC      MNT_NOEXEC
    
    #define fs_vscan(vp, cr, async) (0)
    
    #define VROOT           VV_ROOT
    
    /*
     * Structure defining a mount option for a filesystem.
     * option names are found in mntent.h
     */
    typedef struct mntopt {
            char    *mo_name;       /* option name */
            char    **mo_cancel;    /* list of options cancelled by this one */
            char    *mo_arg;        /* argument string for this option */
            int     mo_flags;       /* flags for this mount option */
            void    *mo_data;       /* filesystem specific data */
    } mntopt_t;
    
    /*
     * Flags that apply to mount options
     */
    
    #define MO_SET          0x01            /* option is set */
    #define MO_NODISPLAY    0x02            /* option not listed in mnttab */
    #define MO_HASVALUE     0x04            /* option takes a value */
    #define MO_IGNORE       0x08            /* option ignored by parser */
    #define MO_DEFAULT      MO_SET          /* option is on by default */
    #define MO_TAG          0x10            /* flags a tag set by user program */
    #define MO_EMPTY        0x20            /* empty space in option table */
    
    #define VFS_NOFORCEOPT  0x01            /* honor MO_IGNORE (don't set option) */
    #define VFS_DISPLAY     0x02            /* Turn off MO_NODISPLAY bit for opt */
    #define VFS_NODISPLAY   0x04            /* Turn on MO_NODISPLAY bit for opt */
    #define VFS_CREATEOPT   0x08            /* Create the opt if it's not there */
    
    /*
     * Structure holding mount option strings for the mounted file system.
     */
    typedef struct mntopts {
            uint_t          mo_count;               /* number of entries in table */
            mntopt_t        *mo_list;               /* list of mount options */
    } mntopts_t;
    
    void vfs_setmntopt(vfs_t *vfsp, const char *name, const char *arg,
        int flags __unused);
   void vfs_clearmntopt(vfs_t *vfsp, const char *name);
   int vfs_optionisset(const vfs_t *vfsp, const char *opt, char **argp);
   int mount_snapshot(kthread_t *td, vnode_t **vpp, const char *fstype,
       char *fspath, char *fspec, int fsflags);
   
   typedef uint64_t        vfs_feature_t;
   
   #define VFSFT_XVATTR            0x100000001     /* Supports xvattr for attrs */
   #define VFSFT_CASEINSENSITIVE   0x100000002     /* Supports case-insensitive */
   #define VFSFT_NOCASESENSITIVE   0x100000004     /* NOT case-sensitive */
   #define VFSFT_DIRENTFLAGS       0x100000008     /* Supports dirent flags */
   #define VFSFT_ACLONCREATE       0x100000010     /* Supports ACL on create */
   #define VFSFT_ACEMASKONACCESS   0x100000020     /* Can use ACEMASK for access */
   #define VFSFT_SYSATTR_VIEWS     0x100000040     /* Supports sysattr view i/f */
   #define VFSFT_ACCESS_FILTER     0x100000080     /* dirents filtered by access */
   #define VFSFT_REPARSE           0x100000100     /* Supports reparse point */
   #define VFSFT_ZEROCOPY_SUPPORTED        0x100000200
                                   /* Support loaning /returning cache buffer */
   
   #define vfs_set_feature(vfsp, feature)          do { } while (0)
   #define vfs_clear_feature(vfsp, feature)        do { } while (0)
   #define vfs_has_feature(vfsp, feature)          (0)
   
   #endif  /* _KERNEL */
   
   #endif  /* _OPENSOLARIS_SYS_VFS_H_ */

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