xnu-792.10.96.tar.gz

[apple/xnu.git] / bsd / sys / mount.h

diff --git a/bsd/sys/mount.h b/bsd/sys/mount.h
index dbb687214b50b74cc01c6ba25de7aa88b690ad4e..e2078d904460dbe95c2851c98e764014d48a8f42 100644 (file)
--- a/bsd/sys/mount.h
+++ b/bsd/sys/mount.h
@@ -1,24 +1,21 @@
 /*
 /*

- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_LICENSE_HEADER_START@
  * 

- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.

  * 
  * 

- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.

  * 
  * @APPLE_LICENSE_HEADER_END@
  */
  * 
  * @APPLE_LICENSE_HEADER_END@
  */


@@ -62,28 +59,19 @@
 #define        _SYS_MOUNT_H_
 
 #include <sys/appleapiopts.h>
 #define        _SYS_MOUNT_H_
 
 #include <sys/appleapiopts.h>

+#include <sys/cdefs.h>
+#include <sys/attr.h>          /* needed for vol_capabilities_attr_t */
+

 #ifndef KERNEL
 #ifndef KERNEL

+#include <stdint.h>

 #include <sys/ucred.h>
 #include <sys/ucred.h>

+#include <sys/queue.h>         /* XXX needed for user builds */
+#else
+#include <sys/kernel_types.h>

 #endif
 #endif

-#include <sys/queue.h>
-#include <sys/lock.h>
-#include <net/radix.h>
-#include <sys/socket.h>                /* XXX for AF_MAX */

 
 typedef struct fsid { int32_t val[2]; } fsid_t;        /* file system id type */
 
 
 typedef struct fsid { int32_t val[2]; } fsid_t;        /* file system id type */
 

-/*
- * File identifier.
- * These are unique per filesystem on a single machine.
- */
-#define        MAXFIDSZ        16
-
-struct fid {
-       u_short         fid_len;                /* length of data in bytes */
-       u_short         fid_reserved;           /* force longword alignment */
-       char            fid_data[MAXFIDSZ];     /* data (variable length) */
-};
-

 /*
  * file system statistics
  */
 /*
  * file system statistics
  */


@@ -91,6 +79,9 @@ struct fid {
 #define        MFSNAMELEN      15      /* length of fs type name, not inc. null */
 #define        MNAMELEN        90      /* length of buffer for returned name */
 
 #define        MFSNAMELEN      15      /* length of fs type name, not inc. null */
 #define        MNAMELEN        90      /* length of buffer for returned name */
 

+/*
+ * LP64 - WARNING - must be kept in sync with struct user_statfs in mount_internal.h.
+ */

 struct statfs {
        short   f_otype;                /* TEMPORARY SHADOW COPY OF f_type */
        short   f_oflags;               /* TEMPORARY SHADOW COPY OF f_flags */
 struct statfs {
        short   f_otype;                /* TEMPORARY SHADOW COPY OF f_type */
        short   f_oflags;               /* TEMPORARY SHADOW COPY OF f_flags */


@@ -119,33 +110,108 @@ struct statfs {
 #endif
 };
 
 #endif
 };
 

-#ifdef __APPLE_API_PRIVATE
+
+#define        MFSTYPENAMELEN  16      /* length of fs type name including null */
+
+#pragma pack(4)
+
+struct vfsstatfs {
+       uint32_t        f_bsize;        /* fundamental file system block size */
+       size_t          f_iosize;       /* optimal transfer block size */
+       uint64_t        f_blocks;       /* total data blocks in file system */
+       uint64_t        f_bfree;        /* free blocks in fs */
+       uint64_t        f_bavail;       /* free blocks avail to non-superuser */
+       uint64_t        f_bused;        /* free blocks avail to non-superuser */
+       uint64_t        f_files;        /* total file nodes in file system */
+       uint64_t        f_ffree;        /* free file nodes in fs */
+       fsid_t          f_fsid;         /* file system id */
+       uid_t           f_owner;        /* user that mounted the filesystem */
+       uint64_t        f_flags;        /* copy of mount exported flags */ 
+       char            f_fstypename[MFSTYPENAMELEN];/* fs type name inclus */
+       char            f_mntonname[MAXPATHLEN];/* directory on which mounted */
+       char            f_mntfromname[MAXPATHLEN];/* mounted filesystem */
+       uint32_t        f_fssubtype;     /* fs sub-type (flavor) */
+       void            *f_reserved[2];         /* For future use == 0 */
+};
+
+#pragma pack()
+
+#define VFSATTR_INIT(s)                        ((s)->f_supported = (s)->f_active = 0LL)
+#define VFSATTR_SET_SUPPORTED(s, a)    ((s)->f_supported |= VFSATTR_ ## a)
+#define VFSATTR_IS_SUPPORTED(s, a)     ((s)->f_supported & VFSATTR_ ## a)
+#define VFSATTR_CLEAR_ACTIVE(s, a)     ((s)->f_active &= ~VFSATTR_ ## a)
+#define VFSATTR_IS_ACTIVE(s, a)                ((s)->f_active & VFSATTR_ ## a)
+#define VFSATTR_ALL_SUPPORTED(s)       (((s)->f_active & (s)->f_supported) == (s)->f_active)
+#define VFSATTR_WANTED(s, a)           ((s)->f_active |= VFSATTR_ ## a)
+#define VFSATTR_RETURN(s, a, x)                do { (s)-> a = (x); VFSATTR_SET_SUPPORTED(s, a);} while(0)
+
+#define VFSATTR_f_objcount             (1LL<<  0)
+#define VFSATTR_f_filecount            (1LL<<  1)
+#define VFSATTR_f_dircount             (1LL<<  2)
+#define VFSATTR_f_maxobjcount          (1LL<<  3)
+#define VFSATTR_f_bsize                        (1LL<< 4)
+#define VFSATTR_f_iosize               (1LL<<  5)
+#define VFSATTR_f_blocks               (1LL<<  6)
+#define VFSATTR_f_bfree                        (1LL<<  7)
+#define VFSATTR_f_bavail               (1LL<<  8)
+#define VFSATTR_f_bused                        (1LL<<  9)
+#define VFSATTR_f_files                        (1LL<< 10)
+#define VFSATTR_f_ffree                        (1LL<< 11)
+#define VFSATTR_f_fsid                 (1LL<< 12)
+#define VFSATTR_f_owner                        (1LL<< 13)
+#define VFSATTR_f_capabilities         (1LL<< 14)
+#define VFSATTR_f_attributes           (1LL<< 15)
+#define VFSATTR_f_create_time          (1LL<< 16)
+#define VFSATTR_f_modify_time          (1LL<< 17)
+#define VFSATTR_f_access_time          (1LL<< 18)
+#define VFSATTR_f_backup_time          (1LL<< 19)
+#define VFSATTR_f_fssubtype            (1LL<< 20)
+#define VFSATTR_f_vol_name             (1LL<< 21)
+#define VFSATTR_f_signature            (1LL<< 22)
+#define VFSATTR_f_carbon_fsid          (1LL<< 23)
+

 /*
 /*

- * Structure per mounted file system.  Each mounted file system has an
- * array of operations and an instance record.  The file systems are
- * put on a doubly linked list.
+ * New VFS_STAT argument structure.

  */
  */

-LIST_HEAD(vnodelst, vnode);
-
-struct mount {
-       CIRCLEQ_ENTRY(mount) mnt_list;          /* mount list */
-       struct vfsops   *mnt_op;                /* operations on fs */
-       struct vfsconf  *mnt_vfc;               /* configuration info */
-       struct vnode    *mnt_vnodecovered;      /* vnode we mounted on */
-       struct vnodelst mnt_vnodelist;          /* list of vnodes this mount */
-       struct lock__bsd__ mnt_lock;            /* mount structure lock */
-       int             mnt_flag;               /* flags */
-       int             mnt_kern_flag;          /* kernel only flags */
-       int             mnt_maxsymlinklen;      /* max size of short symlink */
-       struct statfs   mnt_stat;               /* cache of filesystem stats */
-       qaddr_t         mnt_data;               /* private data */
-       /* Cached values of the IO constraints for the device */
-       u_int32_t       mnt_maxreadcnt; /* Max. byte count for read */
-       u_int32_t       mnt_maxwritecnt;        /* Max. byte count for write */
-       u_int16_t       mnt_segreadcnt; /* Max. segment count for read */
-       u_int16_t       mnt_segwritecnt;        /* Max. segment count for write */
+#pragma pack(4)
+
+struct vfs_attr {
+       uint64_t        f_supported;
+       uint64_t        f_active;
+
+       uint64_t        f_objcount;     /* number of filesystem objects in volume */
+       uint64_t        f_filecount;    /* ... files */
+       uint64_t        f_dircount;     /* ... directories */
+       uint64_t        f_maxobjcount;  /* maximum number of filesystem objects */
+       
+       uint32_t        f_bsize;        /* block size for the below size values */
+       size_t          f_iosize;       /* optimal transfer block size */
+       uint64_t        f_blocks;       /* total data blocks in file system */
+       uint64_t        f_bfree;        /* free blocks in fs */
+       uint64_t        f_bavail;       /* free blocks avail to non-superuser */
+       uint64_t        f_bused;        /* blocks in use */
+       uint64_t        f_files;        /* total file nodes in file system */
+       uint64_t        f_ffree;        /* free file nodes in fs */
+       fsid_t          f_fsid;         /* file system id */
+       uid_t           f_owner;        /* user that mounted the filesystem */
+
+       vol_capabilities_attr_t f_capabilities;
+       vol_attributes_attr_t f_attributes;
+
+       struct timespec f_create_time;  /* creation time */
+       struct timespec f_modify_time;  /* last modification time */
+       struct timespec f_access_time;  /* time of last access */
+       struct timespec f_backup_time;  /* last backup time */
+
+       uint32_t        f_fssubtype;    /* filesystem subtype */
+
+       char            *f_vol_name;    /* volume name */
+
+       uint16_t        f_signature;    /* used for ATTR_VOL_SIGNATURE, Carbon's FSVolumeInfo.signature */
+       uint16_t        f_carbon_fsid;  /* same as Carbon's FSVolumeInfo.filesystemID */

 };
 };

-#endif /* __APPLE_API_PRIVATE */
+
+#pragma pack()

 
 /*
  * User specifiable flags.
 
 /*
  * User specifiable flags.


@@ -160,18 +226,20 @@ struct mount {
 #define        MNT_UNION       0x00000020      /* union with underlying filesystem */
 #define        MNT_ASYNC       0x00000040      /* file system written asynchronously */
 #define MNT_DONTBROWSE 0x00100000      /* file system is not appropriate path to user data */
 #define        MNT_UNION       0x00000020      /* union with underlying filesystem */
 #define        MNT_ASYNC       0x00000040      /* file system written asynchronously */
 #define MNT_DONTBROWSE 0x00100000      /* file system is not appropriate path to user data */

-#define MNT_UNKNOWNPERMISSIONS 0x00200000 /* no known mapping for uid/gid in permissions information on disk */
+#define MNT_IGNORE_OWNERSHIP 0x00200000 /* VFS will ignore ownership information on filesystem
+                                        * objects */

 #define MNT_AUTOMOUNTED 0x00400000     /* filesystem was mounted by automounter */
 #define MNT_JOURNALED   0x00800000  /* filesystem is journaled */
 #define MNT_AUTOMOUNTED 0x00400000     /* filesystem was mounted by automounter */
 #define MNT_JOURNALED   0x00800000  /* filesystem is journaled */

+#define MNT_NOUSERXATTR        0x01000000      /* Don't allow user extended attributes */
+#define MNT_DEFWRITE   0x02000000      /* filesystem should defer writes */
+
+/* backwards compatibility only */
+#define MNT_UNKNOWNPERMISSIONS MNT_IGNORE_OWNERSHIP

 
 /*
  * NFS export related mount flags.
  */
 
 /*
  * NFS export related mount flags.
  */

-#define        MNT_EXRDONLY    0x00000080      /* exported read only */

 #define        MNT_EXPORTED    0x00000100      /* file system is exported */
 #define        MNT_EXPORTED    0x00000100      /* file system is exported */

-#define        MNT_DEFEXPORTED 0x00000200      /* exported to the world */
-#define        MNT_EXPORTANON  0x00000400      /* use anon uid mapping for everyone */
-#define        MNT_EXKERB      0x00000800      /* exported with Kerberos uid mapping */

 
 /*
  * Flags set by internal operations.
 
 /*
  * Flags set by internal operations.


@@ -180,7 +248,6 @@ struct mount {
 #define        MNT_QUOTA       0x00002000      /* quotas are enabled on filesystem */
 #define        MNT_ROOTFS      0x00004000      /* identifies the root filesystem */
 #define        MNT_DOVOLFS     0x00008000      /* FS supports volfs */
 #define        MNT_QUOTA       0x00002000      /* quotas are enabled on filesystem */
 #define        MNT_ROOTFS      0x00004000      /* identifies the root filesystem */
 #define        MNT_DOVOLFS     0x00008000      /* FS supports volfs */

-#define MNT_FIXEDSCRIPTENCODING        0x10000000      /* FS supports only fixed script encoding [HFS] */

 
 /*
  * XXX I think that this could now become (~(MNT_CMDFLAGS))
 
 /*
  * XXX I think that this could now become (~(MNT_CMDFLAGS))


@@ -188,11 +255,11 @@ struct mount {
  */
 #define        MNT_VISFLAGMASK (MNT_RDONLY     | MNT_SYNCHRONOUS | MNT_NOEXEC  | \
                        MNT_NOSUID      | MNT_NODEV     | MNT_UNION     | \
  */
 #define        MNT_VISFLAGMASK (MNT_RDONLY     | MNT_SYNCHRONOUS | MNT_NOEXEC  | \
                        MNT_NOSUID      | MNT_NODEV     | MNT_UNION     | \

-                       MNT_ASYNC       | MNT_EXRDONLY  | MNT_EXPORTED  | \
-                       MNT_DEFEXPORTED | MNT_EXPORTANON| MNT_EXKERB    | \
+                       MNT_ASYNC       | MNT_EXPORTED  | \

                        MNT_LOCAL       |               MNT_QUOTA       | \
                        MNT_ROOTFS      | MNT_DOVOLFS   | MNT_DONTBROWSE | \
                        MNT_LOCAL       |               MNT_QUOTA       | \
                        MNT_ROOTFS      | MNT_DOVOLFS   | MNT_DONTBROWSE | \

-                       MNT_UNKNOWNPERMISSIONS | MNT_AUTOMOUNTED | MNT_JOURNALED | MNT_FIXEDSCRIPTENCODING )
+                       MNT_UNKNOWNPERMISSIONS | MNT_AUTOMOUNTED | MNT_JOURNALED | \
+                       MNT_DEFWRITE)

 /*
  * External filesystem command modifier flags.
  * Unmount can use the MNT_FORCE flag.
 /*
  * External filesystem command modifier flags.
  * Unmount can use the MNT_FORCE flag.


@@ -200,24 +267,12 @@ struct mount {
  * External filesystem control flags.
  */
 #define        MNT_UPDATE      0x00010000      /* not a real mount, just an update */
  * External filesystem control flags.
  */
 #define        MNT_UPDATE      0x00010000      /* not a real mount, just an update */

-#define        MNT_DELEXPORT   0x00020000      /* delete export host lists */

 #define        MNT_RELOAD      0x00040000      /* reload filesystem data */
 #define        MNT_FORCE       0x00080000      /* force unmount or readonly change */
 #define        MNT_RELOAD      0x00040000      /* reload filesystem data */
 #define        MNT_FORCE       0x00080000      /* force unmount or readonly change */

-#define MNT_CMDFLAGS   (MNT_UPDATE|MNT_DELEXPORT|MNT_RELOAD|MNT_FORCE)
+#define MNT_CMDFLAGS   (MNT_UPDATE|MNT_RELOAD|MNT_FORCE)
+
+

 
 

-/*
- * Internal filesystem control flags stored in mnt_kern_flag.
- *
- * MNTK_UNMOUNT locks the mount entry so that name lookup cannot proceed
- * past the mount point.  This keeps the subtree stable during mounts
- * and unmounts.
- */
-#define MNTK_UNMOUNT   0x01000000      /* unmount in progress */
-#define        MNTK_MWAIT      0x02000000      /* waiting for unmount to finish */
-#define MNTK_WANTRDWR  0x04000000      /* upgrade to read/write requested */
-#if REV_ENDIAN_FS
-#define MNT_REVEND     0x08000000      /* Reverse endian FS */
-#endif /* REV_ENDIAN_FS */

 /*
  * Sysctl CTL_VFS definitions.
  *
 /*
  * Sysctl CTL_VFS definitions.
  *


@@ -234,6 +289,8 @@ struct mount {
 #define VFS_MAXTYPENUM 1       /* int: highest defined filesystem type */
 #define VFS_CONF       2       /* struct: vfsconf for filesystem given
                                   as next argument */
 #define VFS_MAXTYPENUM 1       /* int: highest defined filesystem type */
 #define VFS_CONF       2       /* struct: vfsconf for filesystem given
                                   as next argument */

+#define VFS_SET_PACKAGE_EXTS 3 /* set package extension list */
+

 /*
  * Flags for various system call interfaces.
  *
 /*
  * Flags for various system call interfaces.
  *


@@ -242,153 +299,267 @@ struct mount {
 #define MNT_WAIT       1       /* synchronously wait for I/O to complete */
 #define MNT_NOWAIT     2       /* start all I/O, but do not wait for it */
 
 #define MNT_WAIT       1       /* synchronously wait for I/O to complete */
 #define MNT_NOWAIT     2       /* start all I/O, but do not wait for it */
 

-/*
- * Generic file handle
- */
-struct fhandle {
-       fsid_t  fh_fsid;        /* File system id of mount point */
-       struct  fid fh_fid;     /* File sys specific id */
-};
-typedef struct fhandle fhandle_t;

 
 

-/*
- * Export arguments for local filesystem mount calls.
- */
-struct export_args {
-       int     ex_flags;               /* export related flags */
-       uid_t   ex_root;                /* mapping for root uid */
-       struct  ucred ex_anon;          /* mapping for anonymous user */
-       struct  sockaddr *ex_addr;      /* net address to which exported */
-       int     ex_addrlen;             /* and the net address length */
-       struct  sockaddr *ex_mask;      /* mask of valid bits in saddr */
-       int     ex_masklen;             /* and the smask length */
-};
+#ifndef KERNEL
+struct mount;
+typedef struct mount * mount_t;
+struct vnode;
+typedef struct vnode * vnode_t;
+#endif

 
 

-#ifdef __APPLE_API_UNSTABLE
-/*
- * Filesystem configuration information. One of these exists for each
- * type of filesystem supported by the kernel. These are searched at
- * mount time to identify the requested filesystem.
- */

 struct vfsconf {
        struct  vfsops *vfc_vfsops;     /* filesystem operations vector */
        char    vfc_name[MFSNAMELEN];   /* filesystem type name */
        int     vfc_typenum;            /* historic filesystem type number */
        int     vfc_refcount;           /* number mounted of this type */
        int     vfc_flags;              /* permanent flags */
 struct vfsconf {
        struct  vfsops *vfc_vfsops;     /* filesystem operations vector */
        char    vfc_name[MFSNAMELEN];   /* filesystem type name */
        int     vfc_typenum;            /* historic filesystem type number */
        int     vfc_refcount;           /* number mounted of this type */
        int     vfc_flags;              /* permanent flags */

-       int     (*vfc_mountroot)(void); /* if != NULL, routine to mount root */
+       int     (*vfc_mountroot)(mount_t, vnode_t);     /* if != NULL, routine to mount root */

        struct  vfsconf *vfc_next;      /* next in list */
 };
 
        struct  vfsconf *vfc_next;      /* next in list */
 };
 

-#endif /*__APPLE_API_UNSTABLE */
+struct vfsidctl {
+       int             vc_vers;        /* should be VFSIDCTL_VERS1 (below) */
+       fsid_t          vc_fsid;        /* fsid to operate on. */
+       void            *vc_ptr;        /* pointer to data structure. */
+       size_t          vc_len;         /* sizeof said structure. */
+       u_int32_t       vc_spare[12];   /* spare (must be zero). */
+};
+
+
+/* vfsidctl API version. */
+#define VFS_CTL_VERS1  0x01
+
+#ifdef KERNEL
+// LP64todo - should this move?
+
+/* LP64 version of vfsconf.  all pointers 
+ * grow when we're dealing with a 64-bit process.
+ * WARNING - keep in sync with vfsconf
+ */
+struct user_vfsconf {
+       user_addr_t     vfc_vfsops;                             /* filesystem operations vector */
+       char                    vfc_name[MFSNAMELEN];   /* filesystem type name */
+       int                     vfc_typenum;            /* historic filesystem type number */
+       int                     vfc_refcount;           /* number mounted of this type */
+       int                     vfc_flags;                              /* permanent flags */
+       user_addr_t     vfc_mountroot __attribute((aligned(8)));        /* if != NULL, routine to mount root */
+       user_addr_t     vfc_next;                               /* next in list */
+};
+
+struct user_vfsidctl {
+       int                             vc_vers;        /* should be VFSIDCTL_VERS1 (below) */
+       fsid_t                  vc_fsid;                /* fsid to operate on. */
+       user_addr_t             vc_ptr __attribute((aligned(8)));       /* pointer to data structure. */
+       user_size_t             vc_len;                 /* sizeof said structure. */
+       u_int32_t               vc_spare[12];   /* spare (must be zero). */
+};
+
+#endif /* KERNEL */
+
+/*
+ * New style VFS sysctls, do not reuse/conflict with the namespace for
+ * private sysctls.
+ */
+#define VFS_CTL_STATFS 0x00010001      /* statfs */
+#define VFS_CTL_UMOUNT 0x00010002      /* unmount */
+#define VFS_CTL_QUERY  0x00010003      /* anything wrong? (vfsquery) */
+#define VFS_CTL_NEWADDR        0x00010004      /* reconnect to new address */
+#define VFS_CTL_TIMEO  0x00010005      /* set timeout for vfs notification */
+#define VFS_CTL_NOLOCKS        0x00010006      /* disable file locking */
+
+struct vfsquery {
+       u_int32_t       vq_flags;
+       u_int32_t       vq_spare[31];
+};
+
+/* vfsquery flags */
+#define VQ_NOTRESP     0x0001  /* server down */
+#define VQ_NEEDAUTH    0x0002  /* server bad auth */
+#define VQ_LOWDISK     0x0004  /* we're low on space */
+#define VQ_MOUNT       0x0008  /* new filesystem arrived */
+#define VQ_UNMOUNT     0x0010  /* filesystem has left */
+#define VQ_DEAD                0x0020  /* filesystem is dead, needs force unmount */
+#define VQ_ASSIST      0x0040  /* filesystem needs assistance from external program */
+#define VQ_NOTRESPLOCK 0x0080  /* server lockd down */
+#define VQ_UPDATE      0x0100  /* filesystem information has changed */
+#define VQ_FLAG0200    0x0200  /* placeholder */
+#define VQ_FLAG0400    0x0400  /* placeholder */
+#define VQ_FLAG0800    0x0800  /* placeholder */
+#define VQ_FLAG1000    0x1000  /* placeholder */
+#define VQ_FLAG2000    0x2000  /* placeholder */
+#define VQ_FLAG4000    0x4000  /* placeholder */
+#define VQ_FLAG8000    0x8000  /* placeholder */
+

 
 #ifdef KERNEL
 
 #ifdef KERNEL

-#ifdef __APPLE_API_UNSTABLE
-extern int maxvfsconf;         /* highest defined filesystem type */
-extern struct vfsconf *vfsconf;        /* head of list of filesystem types */
-extern int maxvfsslots;                /* Maximum slots available to be used */
-extern int numused_vfsslots;   /* number of slots already used */

 
 

-int    vfsconf_add __P((struct vfsconf *));
-int    vfsconf_del __P((char *));
+/* Structure for setting device IO parameters per mount point */
+struct vfsioattr {
+       u_int32_t       io_maxreadcnt;          /* Max. byte count for read */
+       u_int32_t       io_maxwritecnt;         /* Max. byte count for write */
+       u_int32_t       io_segreadcnt;          /* Max. segment count for read */
+       u_int32_t       io_segwritecnt;         /* Max. segment count for write */
+       u_int32_t       io_maxsegreadsize;      /* Max. segment read size  */
+       u_int32_t       io_maxsegwritesize;     /* Max. segment write size */
+       u_int32_t       io_devblocksize;        /* the underlying device block size */
+       void *          io_reserved[3];         /* extended attribute information */
+};
+

 
 /*
 
 /*

- * Operations supported on mounted file system.
+ * Filesystem Registration information

  */
  */

-#ifdef __STDC__
-struct nameidata;
-struct mbuf;
-#endif
+
+#define VFS_TBLTHREADSAFE      0x01
+#define VFS_TBLFSNODELOCK      0x02
+#define VFS_TBLNOTYPENUM       0x08
+#define VFS_TBLLOCALVOL                0x10
+#define VFS_TBL64BITREADY      0x20
+
+struct vfs_fsentry {
+       struct vfsops * vfe_vfsops;     /* vfs operations */
+       int             vfe_vopcnt;     /* # of vnodeopv_desc being registered (reg, spec, fifo ...) */
+       struct vnodeopv_desc ** vfe_opvdescs; /* null terminated;  */
+       int                     vfe_fstypenum;  /* historic filesystem type number */
+       char            vfe_fsname[MFSNAMELEN]; /* filesystem type name */
+       uint32_t        vfe_flags;              /* defines the FS capabilities */
+    void *             vfe_reserv[2];  /* reserved for future use; set this to zero*/
+ };
+
+

 
 struct vfsops {
 
 struct vfsops {

-       int     (*vfs_mount)    __P((struct mount *mp, char *path, caddr_t data,
-                                   struct nameidata *ndp, struct proc *p));
-       int     (*vfs_start)    __P((struct mount *mp, int flags,
-                                   struct proc *p));
-       int     (*vfs_unmount)  __P((struct mount *mp, int mntflags,
-                                   struct proc *p));
-       int     (*vfs_root)     __P((struct mount *mp, struct vnode **vpp));
-       int     (*vfs_quotactl) __P((struct mount *mp, int cmds, uid_t uid,
-                                   caddr_t arg, struct proc *p));
-       int     (*vfs_statfs)   __P((struct mount *mp, struct statfs *sbp,
-                                   struct proc *p));
-       int     (*vfs_sync)     __P((struct mount *mp, int waitfor,
-                                   struct ucred *cred, struct proc *p));
-       int     (*vfs_vget)     __P((struct mount *mp, void *ino,
-                                   struct vnode **vpp));
-       int     (*vfs_fhtovp)   __P((struct mount *mp, struct fid *fhp,
-                                   struct mbuf *nam, struct vnode **vpp,
-                                   int *exflagsp, struct ucred **credanonp));
-       int     (*vfs_vptofh)   __P((struct vnode *vp, struct fid *fhp));
-       int     (*vfs_init)     __P((struct vfsconf *));
-       int     (*vfs_sysctl)   __P((int *, u_int, void *, size_t *, void *,
-                                   size_t, struct proc *));
+       int  (*vfs_mount)(struct mount *mp, vnode_t devvp, user_addr_t data, vfs_context_t context);
+       int  (*vfs_start)(struct mount *mp, int flags, vfs_context_t context);
+       int  (*vfs_unmount)(struct mount *mp, int mntflags, vfs_context_t context);
+       int  (*vfs_root)(struct mount *mp, struct vnode **vpp, vfs_context_t context);
+       int  (*vfs_quotactl)(struct mount *mp, int cmds, uid_t uid, caddr_t arg, vfs_context_t context);
+       int  (*vfs_getattr)(struct mount *mp, struct vfs_attr *, vfs_context_t context);
+/*     int  (*vfs_statfs)(struct mount *mp, struct vfsstatfs *sbp, vfs_context_t context);*/
+       int  (*vfs_sync)(struct mount *mp, int waitfor, vfs_context_t context);
+       int  (*vfs_vget)(struct mount *mp, ino64_t ino, struct vnode **vpp, vfs_context_t context);
+       int  (*vfs_fhtovp)(struct mount *mp, int fhlen, unsigned char *fhp, struct vnode **vpp,
+                          vfs_context_t context);
+       int  (*vfs_vptofh)(struct vnode *vp, int *fhlen, unsigned char *fhp, vfs_context_t context);
+       int  (*vfs_init)(struct vfsconf *);
+       int  (*vfs_sysctl)(int *, u_int, user_addr_t, size_t *, user_addr_t, size_t, vfs_context_t context);
+       int  (*vfs_setattr)(struct mount *mp, struct vfs_attr *, vfs_context_t context);
+       void *vfs_reserved[7];

 };
 
 };
 

-#define VFS_MOUNT(MP, PATH, DATA, NDP, P) \
-       (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, NDP, P)
-#define VFS_START(MP, FLAGS, P)          (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P)
-#define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P)
-#define VFS_ROOT(MP, VPP)        (*(MP)->mnt_op->vfs_root)(MP, VPP)
-#define VFS_QUOTACTL(MP,C,U,A,P)  (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P)
-#define VFS_STATFS(MP, SBP, P)   (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P)
-#define VFS_SYNC(MP, WAIT, C, P)  (*(MP)->mnt_op->vfs_sync)(MP, WAIT, C, P)
-#define VFS_VGET(MP, INO, VPP)   (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP)
-#define VFS_FHTOVP(MP, FIDP, NAM, VPP, EXFLG, CRED) \
-       (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, NAM, VPP, EXFLG, CRED)
-#define        VFS_VPTOFH(VP, FIDP)      (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP)

 
 /*
 
 /*

- * Network address lookup element
+ * flags passed into vfs_iterate

  */
  */

-struct netcred {
-       struct  radix_node netc_rnodes[2];
-       int     netc_exflags;
-       struct  ucred netc_anon;
-};

 
 /*
 
 /*

- * Network export information
+ * return values from callback

  */
  */

-struct netexport {
-       struct  netcred ne_defexported;               /* Default export */
-       struct  radix_node_head *ne_rtable[AF_MAX+1]; /* Individual exports */
-};
+#define VFS_RETURNED           0       /* done with vnode, reference can be dropped */
+#define VFS_RETURNED_DONE      1       /* done with vnode, reference can be dropped, terminate iteration */
+#define VFS_CLAIMED            2       /* don't drop reference */
+#define VFS_CLAIMED_DONE       3       /* don't drop reference, terminate iteration */
+

 
 

+__BEGIN_DECLS

 /*
 /*

- * exported vnode operations
+ * prototypes for exported VFS operations

  */
  */

-int    vfs_busy __P((struct mount *, int, struct slock *, struct proc *));
-int    vfs_export __P((struct mount *, struct netexport *,
-           struct export_args *));
-struct netcred *vfs_export_lookup __P((struct mount *, struct netexport *,
-           struct mbuf *));
-void   vfs_getnewfsid __P((struct mount *));
-struct mount *vfs_getvfs __P((fsid_t *));
-int    vfs_mountedon __P((struct vnode *));
-void   vfs_unbusy __P((struct mount *, struct proc *));
-#ifdef __APPLE_API_PRIVATE
-int    vfs_mountroot __P((void));
-int    vfs_rootmountalloc __P((char *, char *, struct mount **));
-void   vfs_unmountall __P((void));
-#endif /* __APPLE_API_PRIVATE */
-extern CIRCLEQ_HEAD(mntlist, mount) mountlist;
-extern struct slock mountlist_slock;
-
-#endif /* __APPLE_API_UNSTABLE */
-#else /* !KERNEL */
+extern int VFS_MOUNT(mount_t, vnode_t, user_addr_t, vfs_context_t);
+extern int VFS_START(mount_t, int, vfs_context_t);
+extern int VFS_UNMOUNT(mount_t, int, vfs_context_t);
+extern int VFS_ROOT(mount_t, vnode_t *, vfs_context_t);
+extern int VFS_QUOTACTL(mount_t, int, uid_t, caddr_t, vfs_context_t);
+extern int VFS_SYNC(mount_t, int, vfs_context_t);
+extern int VFS_VGET(mount_t, ino64_t, vnode_t *, vfs_context_t);
+extern int VFS_FHTOVP(mount_t, int, unsigned char *, vnode_t *, vfs_context_t);
+extern int VFS_VPTOFH(vnode_t, int *, unsigned char *, vfs_context_t);
+
+/* The file system registrartion KPI */
+int vfs_fsadd(struct vfs_fsentry *, vfstable_t *);
+int vfs_fsremove(vfstable_t);
+int    vfs_iterate(int, int (*)(struct mount *, void *), void *);
+
+uint64_t vfs_flags(mount_t);
+void   vfs_setflags(mount_t, uint64_t);
+void   vfs_clearflags(mount_t, uint64_t);
+
+int    vfs_issynchronous(mount_t);
+int    vfs_iswriteupgrade(mount_t);
+int    vfs_isupdate(mount_t); 
+int    vfs_isreload(mount_t);
+int    vfs_isforce(mount_t);
+int    vfs_isrdonly(mount_t);
+int    vfs_isrdwr(mount_t);
+int    vfs_authopaque(mount_t);
+int    vfs_authopaqueaccess(mount_t);
+void   vfs_setauthopaque(mount_t);
+void   vfs_setauthopaqueaccess(mount_t);
+void   vfs_clearauthopaque(mount_t);
+void   vfs_clearauthopaqueaccess(mount_t);
+int    vfs_extendedsecurity(mount_t);
+void   vfs_setextendedsecurity(mount_t);
+void   vfs_clearextendedsecurity(mount_t);
+void   vfs_setlocklocal(mount_t);
+
+
+
+uint32_t vfs_maxsymlen(mount_t);
+void   vfs_setmaxsymlen(mount_t, uint32_t);
+void * vfs_fsprivate(mount_t);
+void   vfs_setfsprivate(mount_t, void *mntdata);
+
+struct vfsstatfs *     vfs_statfs(mount_t);
+int    vfs_update_vfsstat(mount_t, vfs_context_t);
+int    vfs_getattr(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx);
+int    vfs_setattr(mount_t mp, struct vfs_attr *vfa, vfs_context_t ctx);
+
+int    vfs_typenum(mount_t);
+void   vfs_name(mount_t, char *);
+int    vfs_devblocksize(mount_t);
+void   vfs_ioattr(mount_t, struct vfsioattr *);
+void   vfs_setioattr(mount_t, struct vfsioattr *);
+int    vfs_64bitready(mount_t);
+
+
+int    vfs_busy(mount_t, int);
+void   vfs_unbusy(mount_t);
+
+void   vfs_getnewfsid(struct mount *);
+mount_t        vfs_getvfs(fsid_t *);
+mount_t        vfs_getvfs_by_mntonname(u_char *);
+int    vfs_mountedon(struct vnode *);
+
+void   vfs_event_signal(fsid_t *, u_int32_t, intptr_t);
+void   vfs_event_init(void);
+__END_DECLS
+
+#endif /* KERNEL */
+
+#ifndef KERNEL
+
+/*
+ * Generic file handle
+ */
+#define        NFS_MAX_FH_SIZE         64
+#define        NFSV2_MAX_FH_SIZE       32
+struct fhandle {
+       int             fh_len;                         /* length of file handle */
+       unsigned char   fh_data[NFS_MAX_FH_SIZE];       /* file handle value */
+};
+typedef struct fhandle fhandle_t;

 
 

-#include <sys/cdefs.h>

 
 __BEGIN_DECLS
 
 __BEGIN_DECLS

-int    fstatfs __P((int, struct statfs *));
-int    getfh __P((const char *, fhandle_t *));
-int    getfsstat __P((struct statfs *, long, int));
-int    getmntinfo __P((struct statfs **, int));
-int    mount __P((const char *, const char *, int, void *));
-int    statfs __P((const char *, struct statfs *));
-int    unmount __P((const char *, int));
-int    getvfsbyname __P((const char *, struct vfsconf *));
+int    fhopen(const struct fhandle *, int);
+int    fstatfs(int, struct statfs *);
+int    getfh(const char *, fhandle_t *);
+int    getfsstat(struct statfs *, int, int);
+int    getmntinfo(struct statfs **, int);
+int    mount(const char *, const char *, int, void *);
+int    statfs(const char *, struct statfs *);
+int    unmount(const char *, int);
+int    getvfsbyname(const char *, struct vfsconf *);

 __END_DECLS
 
 #endif /* KERNEL */
 __END_DECLS
 
 #endif /* KERNEL */