463 lines
20 KiB
C
463 lines
20 KiB
C
/*
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* Copyright (c) 2000-2021 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
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/*
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* Copyright (c) 1989, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mount.h 8.21 (Berkeley) 5/20/95
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*/
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/*
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* NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
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* support for mandatory and extensible security protections. This notice
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* is included in support of clause 2.2 (b) of the Apple Public License,
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* Version 2.0.
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*/
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#ifndef _SYS_MOUNT_H_
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#define _SYS_MOUNT_H_
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#include <sys/appleapiopts.h>
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#include <sys/cdefs.h>
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#include <sys/attr.h> /* needed for vol_capabilities_attr_t */
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#include <os/base.h>
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#include <stdint.h>
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#include <sys/ucred.h>
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#include <sys/queue.h> /* XXX needed for user builds */
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#include <Availability.h>
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#include <sys/_types/_fsid_t.h> /* file system id type */
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#include <sys/_types/_graftdmg_un.h>
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#include <sys/_types/_mount_t.h>
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#include <sys/_types/_vnode_t.h>
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/*
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* file system statistics
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*/
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#define MFSNAMELEN 15 /* length of fs type name, not inc. null */
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#define MFSTYPENAMELEN 16 /* length of fs type name including null */
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#if __DARWIN_64_BIT_INO_T
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#define MNAMELEN MAXPATHLEN /* length of buffer for returned name */
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#else /* ! __DARWIN_64_BIT_INO_T */
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#define MNAMELEN 90 /* length of buffer for returned name */
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#endif /* __DARWIN_64_BIT_INO_T */
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#define MNT_EXT_ROOT_DATA_VOL 0x00000001 /* Data volume of root volume group */
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#define MNT_EXT_FSKIT 0x00000002 /* this is an FSKit mount */
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#define __DARWIN_STRUCT_STATFS64 { \
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uint32_t f_bsize; /* fundamental file system block size */ \
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int32_t f_iosize; /* optimal transfer block size */ \
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uint64_t f_blocks; /* total data blocks in file system */ \
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uint64_t f_bfree; /* free blocks in fs */ \
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uint64_t f_bavail; /* free blocks avail to non-superuser */ \
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uint64_t f_files; /* total file nodes in file system */ \
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uint64_t f_ffree; /* free file nodes in fs */ \
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fsid_t f_fsid; /* file system id */ \
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uid_t f_owner; /* user that mounted the filesystem */ \
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uint32_t f_type; /* type of filesystem */ \
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uint32_t f_flags; /* copy of mount exported flags */ \
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uint32_t f_fssubtype; /* fs sub-type (flavor) */ \
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char f_fstypename[MFSTYPENAMELEN]; /* fs type name */ \
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char f_mntonname[MAXPATHLEN]; /* directory on which mounted */ \
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char f_mntfromname[MAXPATHLEN]; /* mounted filesystem */ \
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uint32_t f_flags_ext; /* extended flags */ \
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uint32_t f_reserved[7]; /* For future use */ \
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}
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#if !__DARWIN_ONLY_64_BIT_INO_T
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struct statfs64 __DARWIN_STRUCT_STATFS64;
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#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
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#if __DARWIN_64_BIT_INO_T
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struct statfs __DARWIN_STRUCT_STATFS64;
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#else /* !__DARWIN_64_BIT_INO_T */
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/*
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* LP64 - WARNING - must be kept in sync with struct user_statfs in mount_internal.h.
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*/
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struct statfs {
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short f_otype; /* TEMPORARY SHADOW COPY OF f_type */
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short f_oflags; /* TEMPORARY SHADOW COPY OF f_flags */
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long f_bsize; /* fundamental file system block size */
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long f_iosize; /* optimal transfer block size */
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long f_blocks; /* total data blocks in file system */
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long f_bfree; /* free blocks in fs */
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long f_bavail; /* free blocks avail to non-superuser */
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long f_files; /* total file nodes in file system */
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long f_ffree; /* free file nodes in fs */
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fsid_t f_fsid; /* file system id */
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uid_t f_owner; /* user that mounted the filesystem */
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short f_reserved1; /* spare for later */
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short f_type; /* type of filesystem */
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long f_flags; /* copy of mount exported flags */
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long f_reserved2[2]; /* reserved for future use */
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char f_fstypename[MFSNAMELEN]; /* fs type name */
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char f_mntonname[MNAMELEN]; /* directory on which mounted */
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char f_mntfromname[MNAMELEN];/* mounted filesystem */
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char f_reserved3; /* For alignment */
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long f_reserved4[4]; /* For future use */
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};
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#endif /* __DARWIN_64_BIT_INO_T */
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#pragma pack(4)
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struct vfsstatfs {
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uint32_t f_bsize; /* fundamental file system block size */
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size_t f_iosize; /* optimal transfer block size */
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uint64_t f_blocks; /* total data blocks in file system */
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uint64_t f_bfree; /* free blocks in fs */
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uint64_t f_bavail; /* free blocks avail to non-superuser */
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uint64_t f_bused; /* free blocks avail to non-superuser */
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uint64_t f_files; /* total file nodes in file system */
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uint64_t f_ffree; /* free file nodes in fs */
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fsid_t f_fsid; /* file system id */
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uid_t f_owner; /* user that mounted the filesystem */
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uint64_t f_flags; /* copy of mount exported flags */
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char f_fstypename[MFSTYPENAMELEN];/* fs type name inclus */
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char f_mntonname[MAXPATHLEN];/* directory on which mounted */
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char f_mntfromname[MAXPATHLEN];/* mounted filesystem */
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uint32_t f_fssubtype; /* fs sub-type (flavor) */
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void *f_reserved[2]; /* For future use == 0 */
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};
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#pragma pack()
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/*
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* User specifiable flags.
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*
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* Unmount uses MNT_FORCE flag.
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*/
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#define MNT_RDONLY 0x00000001 /* read only filesystem */
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#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
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#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
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#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
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#define MNT_NODEV 0x00000010 /* don't interpret special files */
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#define MNT_UNION 0x00000020 /* union with underlying filesystem */
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#define MNT_ASYNC 0x00000040 /* file system written asynchronously */
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#define MNT_CPROTECT 0x00000080 /* file system supports content protection */
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/*
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* NFS export related mount flags.
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*/
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#define MNT_EXPORTED 0x00000100 /* file system is exported */
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/*
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* Denotes storage which can be removed from the system by the user.
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*/
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#define MNT_REMOVABLE 0x00000200
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/*
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* MAC labeled / "quarantined" flag
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*/
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#define MNT_QUARANTINE 0x00000400 /* file system is quarantined */
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/*
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* Flags set by internal operations.
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*/
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#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
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#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
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#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
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#define MNT_DOVOLFS 0x00008000 /* FS supports volfs (deprecated flag in Mac OS X 10.5) */
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#define MNT_DONTBROWSE 0x00100000 /* file system is not appropriate path to user data */
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#define MNT_IGNORE_OWNERSHIP 0x00200000 /* VFS will ignore ownership information on filesystem objects */
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#define MNT_AUTOMOUNTED 0x00400000 /* filesystem was mounted by automounter */
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#define MNT_JOURNALED 0x00800000 /* filesystem is journaled */
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#define MNT_NOUSERXATTR 0x01000000 /* Don't allow user extended attributes */
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#define MNT_DEFWRITE 0x02000000 /* filesystem should defer writes */
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#define MNT_MULTILABEL 0x04000000 /* MAC support for individual labels */
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#define MNT_NOFOLLOW 0x08000000 /* don't follow symlink when resolving mount point */
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#define MNT_NOATIME 0x10000000 /* disable update of file access time */
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#define MNT_SNAPSHOT 0x40000000 /* The mount is a snapshot */
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#define MNT_STRICTATIME 0x80000000 /* enable strict update of file access time */
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/* backwards compatibility only */
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#define MNT_UNKNOWNPERMISSIONS MNT_IGNORE_OWNERSHIP
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/*
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* XXX I think that this could now become (~(MNT_CMDFLAGS))
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* but the 'mount' program may need changing to handle this.
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*/
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#define MNT_VISFLAGMASK (MNT_RDONLY | MNT_SYNCHRONOUS | MNT_NOEXEC | \
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MNT_NOSUID | MNT_NODEV | MNT_UNION | \
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MNT_ASYNC | MNT_EXPORTED | MNT_QUARANTINE | \
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MNT_LOCAL | MNT_QUOTA | MNT_REMOVABLE | \
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MNT_ROOTFS | MNT_DOVOLFS | MNT_DONTBROWSE | \
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MNT_IGNORE_OWNERSHIP | MNT_AUTOMOUNTED | MNT_JOURNALED | \
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MNT_NOUSERXATTR | MNT_DEFWRITE | MNT_MULTILABEL | \
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MNT_NOFOLLOW | MNT_NOATIME | MNT_STRICTATIME | \
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MNT_SNAPSHOT | MNT_CPROTECT)
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/*
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* External filesystem command modifier flags.
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* Unmount can use the MNT_FORCE flag.
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* XXX These are not STATES and really should be somewhere else.
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* External filesystem control flags.
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*/
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#define MNT_UPDATE 0x00010000 /* not a real mount, just an update */
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#define MNT_NOBLOCK 0x00020000 /* don't block unmount if not responding */
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#define MNT_RELOAD 0x00040000 /* reload filesystem data */
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#define MNT_FORCE 0x00080000 /* force unmount or readonly change */
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#define MNT_CMDFLAGS (MNT_UPDATE|MNT_NOBLOCK|MNT_RELOAD|MNT_FORCE)
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/*
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* Sysctl CTL_VFS definitions.
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*
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* Second level identifier specifies which filesystem. Second level
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* identifier VFS_GENERIC returns information about all filesystems.
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*/
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#define VFS_GENERIC 0 /* generic filesystem information */
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#define VFS_NUMMNTOPS 1 /* int: total num of vfs mount/unmount operations */
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/*
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* Third level identifiers for VFS_GENERIC are given below; third
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* level identifiers for specific filesystems are given in their
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* mount specific header files.
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*/
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#define VFS_MAXTYPENUM 1 /* int: highest defined filesystem type */
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#define VFS_CONF 2 /* struct: vfsconf for filesystem given
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* as next argument */
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/*
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* Flags for various system call interfaces.
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*
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* waitfor flags to vfs_sync() and getfsstat()
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*/
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#define MNT_WAIT 1 /* synchronized I/O file integrity completion */
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#define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */
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#define MNT_DWAIT 4 /* synchronized I/O data integrity completion */
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/* Reserved fields preserve binary compatibility */
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struct vfsconf {
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uint32_t vfc_reserved1; /* opaque */
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char vfc_name[MFSNAMELEN]; /* filesystem type name */
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int vfc_typenum; /* historic filesystem type number */
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int vfc_refcount; /* number mounted of this type */
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int vfc_flags; /* permanent flags */
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uint32_t vfc_reserved2; /* opaque */
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uint32_t vfc_reserved3; /* opaque */
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};
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struct vfsidctl {
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int vc_vers; /* should be VFSIDCTL_VERS1 (below) */
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fsid_t vc_fsid; /* fsid to operate on. */
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void *vc_ptr; /* pointer to data structure. */
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size_t vc_len; /* sizeof said structure. */
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u_int32_t vc_spare[12]; /* spare (must be zero). */
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};
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/* vfsidctl API version. */
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#define VFS_CTL_VERS1 0x01
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/*
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* New style VFS sysctls, do not reuse/conflict with the namespace for
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* private sysctls.
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*/
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#define VFS_CTL_OSTATFS 0x00010001 /* old legacy statfs */
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#define VFS_CTL_UMOUNT 0x00010002 /* unmount */
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#define VFS_CTL_QUERY 0x00010003 /* anything wrong? (vfsquery) */
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#define VFS_CTL_NEWADDR 0x00010004 /* reconnect to new address */
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#define VFS_CTL_TIMEO 0x00010005 /* set timeout for vfs notification */
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#define VFS_CTL_NOLOCKS 0x00010006 /* disable file locking */
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#define VFS_CTL_SADDR 0x00010007 /* get server address */
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#define VFS_CTL_DISC 0x00010008 /* server disconnected */
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#define VFS_CTL_SERVERINFO 0x00010009 /* information about fs server */
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#define VFS_CTL_NSTATUS 0x0001000A /* netfs mount status */
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#define VFS_CTL_STATFS64 0x0001000B /* statfs64 */
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/*
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* Automatically select the correct VFS_CTL_*STATFS* flavor based
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* on what "struct statfs" layout the client will use.
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*/
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#if __DARWIN_64_BIT_INO_T
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#define VFS_CTL_STATFS VFS_CTL_STATFS64
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#else
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#define VFS_CTL_STATFS VFS_CTL_OSTATFS
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#endif
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struct vfsquery {
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u_int32_t vq_flags;
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u_int32_t vq_spare[31];
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};
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struct vfs_server {
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int32_t vs_minutes; /* minutes until server goes down. */
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u_int8_t vs_server_name[MAXHOSTNAMELEN * 3]; /* UTF8 server name to display (null terminated) */
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};
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/*
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* NetFS mount status - returned by VFS_CTL_NSTATUS
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*/
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struct netfs_status {
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u_int32_t ns_status; // Current status of mount (vfsquery flags)
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char ns_mountopts[512]; // Significant mount options
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uint32_t ns_waittime; // Time waiting for reply (sec)
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uint32_t ns_threadcount; // Number of threads blocked on network calls
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uint64_t ns_threadids[0]; // Thread IDs of those blocked threads
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};
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/* vfsquery flags */
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#define VQ_NOTRESP 0x0001 /* server down */
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#define VQ_NEEDAUTH 0x0002 /* server bad auth */
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#define VQ_LOWDISK 0x0004 /* we're low on space */
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#define VQ_MOUNT 0x0008 /* new filesystem arrived */
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#define VQ_UNMOUNT 0x0010 /* filesystem has left */
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#define VQ_DEAD 0x0020 /* filesystem is dead, needs force unmount */
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#define VQ_ASSIST 0x0040 /* filesystem needs assistance from external program */
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#define VQ_NOTRESPLOCK 0x0080 /* server lockd down */
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#define VQ_UPDATE 0x0100 /* filesystem information has changed */
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#define VQ_VERYLOWDISK 0x0200 /* file system has *very* little disk space left */
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#define VQ_SYNCEVENT 0x0400 /* a sync just happened (not set by kernel starting Mac OS X 10.9) */
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#define VQ_SERVEREVENT 0x0800 /* server issued notification/warning */
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#define VQ_QUOTA 0x1000 /* a user quota has been hit */
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#define VQ_NEARLOWDISK 0x2000 /* Above lowdisk and below desired disk space */
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#define VQ_DESIRED_DISK 0x4000 /* the desired disk space */
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#define VQ_FREE_SPACE_CHANGE 0x8000 /* free disk space has significantly changed */
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#define VQ_FLAG10000 0x10000 /* placeholder */
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/*
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* Generic file handle
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*/
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#define NFS_MAX_FH_SIZE NFSV4_MAX_FH_SIZE
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#define NFSV4_MAX_FH_SIZE 128
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#define NFSV3_MAX_FH_SIZE 64
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#define NFSV2_MAX_FH_SIZE 32
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struct fhandle {
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unsigned int fh_len; /* length of file handle */
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unsigned char fh_data[NFS_MAX_FH_SIZE]; /* file handle value */
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};
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typedef struct fhandle fhandle_t;
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/*
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* Cryptex authentication
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* Note: these 2 enums are used in conjunction, graftdmg_type is used for authentication while grafting
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* cryptexes and cryptex_auth_type is currently used for authentication while mounting generic
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* cryptexes. We need to make sure we do not use the reserved values in each for a new authentication type.
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*/
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// bump up the version for any change that has kext dependency
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#define CRYPTEX_AUTH_STRUCT_VERSION 1
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OS_ENUM(graftdmg_type, uint32_t,
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GRAFTDMG_CRYPTEX_BOOT = 1,
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GRAFTDMG_CRYPTEX_PREBOOT = 2,
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GRAFTDMG_CRYPTEX_DOWNLEVEL = 3,
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// Reserved: CRYPTEX1_AUTH_ENV_GENERIC = 4,
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// Reserved: CRYPTEX1_AUTH_ENV_GENERIC_SUPPLEMENTAL = 5,
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GRAFTDMG_CRYPTEX_PDI_NONCE = 6,
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GRAFTDMG_CRYPTEX_EFFECTIVE_AP = 7,
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// Update this when a new type is added
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GRAFTDMG_CRYPTEX_MAX = 7);
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OS_ENUM(cryptex_auth_type, uint32_t,
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// Reserved: GRAFTDMG_CRYPTEX_BOOT = 1,
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// Reserved: GRAFTDMG_CRYPTEX_PREBOOT = 2,
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// Reserved: GRAFTDMG_CRYPTEX_DOWNLEVEL = 3,
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CRYPTEX1_AUTH_ENV_GENERIC = 4,
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CRYPTEX1_AUTH_ENV_GENERIC_SUPPLEMENTAL = 5,
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CRYPTEX_AUTH_PDI_NONCE = 6,
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// Reserved: GRAFTDMG_CRYPTEX_EFFECTIVE_AP = 7
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// Update this when a new type is added
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|
CRYPTEX_AUTH_MAX = 7);
|
|
|
|
|
|
__BEGIN_DECLS
|
|
int fhopen(const struct fhandle *, int);
|
|
int fstatfs(int, struct statfs *) __DARWIN_INODE64(fstatfs);
|
|
#if !__DARWIN_ONLY_64_BIT_INO_T
|
|
int fstatfs64(int, struct statfs64 *) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
|
|
#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
|
|
int getfh(const char *, fhandle_t *);
|
|
int getfsstat(struct statfs *, int, int) __DARWIN_INODE64(getfsstat);
|
|
#if !__DARWIN_ONLY_64_BIT_INO_T
|
|
int getfsstat64(struct statfs64 *, int, int) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
|
|
#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
|
|
int getmntinfo(struct statfs **, int) __DARWIN_INODE64(getmntinfo);
|
|
int getmntinfo_r_np(struct statfs **, int) __DARWIN_INODE64(getmntinfo_r_np)
|
|
__OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0)
|
|
__TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
|
|
#if !__DARWIN_ONLY_64_BIT_INO_T
|
|
int getmntinfo64(struct statfs64 **, int) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
|
|
#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
|
|
int mount(const char *, const char *, int, void *);
|
|
int fmount(const char *, int, int, void *) __OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0) __TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
|
|
int statfs(const char *, struct statfs *) __DARWIN_INODE64(statfs);
|
|
#if !__DARWIN_ONLY_64_BIT_INO_T
|
|
int statfs64(const char *, struct statfs64 *) __OSX_AVAILABLE_BUT_DEPRECATED(__MAC_10_5, __MAC_10_6, __IPHONE_NA, __IPHONE_NA);
|
|
#endif /* !__DARWIN_ONLY_64_BIT_INO_T */
|
|
int unmount(const char *, int);
|
|
int getvfsbyname(const char *, struct vfsconf *);
|
|
__END_DECLS
|
|
|
|
#endif /* !_SYS_MOUNT_H_ */
|