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minix/sys/sys/fstypes.h
Lionel Sambuc f6aac1c3b5 Moving all NetBSD headers back where they belong. 
Moving include/sys NetBSD headers to /sys/sys
Moving include/arch/*/ NetBSD headers to /sys/arch/*/include

Change-Id: Ia1a45d4e83ab806c84093ec2b61bdbea9bed65a0
2013-01-14 11:36:25 +01:00

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/* $NetBSD: fstypes.h,v 1.30 2011/11/18 21:17:45 christos Exp $ */
/*
* Copyright (c) 1989, 1991, 1993
* The Regents of the University of California. 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)mount.h 8.21 (Berkeley) 5/20/95
*/
#ifndef _SYS_FSTYPES_H_
#define _SYS_FSTYPES_H_
typedef struct { int32_t __fsid_val[2]; } fsid_t; /* file system id type */
#if defined(_KERNEL)
/*
* File identifier.
* These are unique per filesystem on a single machine.
*/
struct fid {
unsigned short fid_len; /* length of data in bytes */
unsigned short fid_reserved; /* compat: historic align */
char fid_data[0]; /* data (variable length) */
};
/*
* 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;
/*
* FHANDLE_SIZE_MAX: arbitrary value to prevent unreasonable allocation.
*
* FHANDLE_SIZE_MIN: chosen for compatibility. smaller handles are zero-padded.
*/
#define FHANDLE_SIZE_COMPAT 28
#define FHANDLE_SIZE_MAX 1024
#define FHANDLE_SIZE_MIN FHANDLE_SIZE_COMPAT
#define FHANDLE_FSID(fh) (&(fh)->fh_fsid)
#define FHANDLE_FILEID(fh) (&(fh)->fh_fid)
#define FHANDLE_SIZE_FROM_FILEID_SIZE(fidsize) \
MAX(FHANDLE_SIZE_MIN, (offsetof(fhandle_t, fh_fid) + (fidsize)))
#define FHANDLE_SIZE(fh) \
FHANDLE_SIZE_FROM_FILEID_SIZE(FHANDLE_FILEID(fh)->fid_len)
#endif /* defined(_KERNEL) */
/*
* Mount flags. XXX BEWARE: these are not in numerical order!
*
* Unmount uses MNT_FORCE flag.
*
* Note that all mount flags are listed here. if you need to add one, take
* one of the __MNT_UNUSED flags.
*/
#define __MNT_UNUSED1 0x00200000
#define __MNT_UNUSED2 0x00800000
#define MNT_RDONLY 0x00000001 /* read only filesystem */
#define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */
#define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */
#define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */
#define MNT_NODEV 0x00000010 /* don't interpret special files */
#define MNT_UNION 0x00000020 /* union with underlying filesystem */
#define MNT_ASYNC 0x00000040 /* file system written asynchronously */
#define MNT_NOCOREDUMP 0x00008000 /* don't write core dumps to this FS */
#define MNT_RELATIME 0x00020000 /* only update access time if mod/ch */
#define MNT_IGNORE 0x00100000 /* don't show entry in df */
#define MNT_EXTATTR 0x01000000 /* enable extended attributes */
#define MNT_LOG 0x02000000 /* Use logging */
#define MNT_NOATIME 0x04000000 /* Never update access times in fs */
#define MNT_SYMPERM 0x20000000 /* recognize symlink permission */
#define MNT_NODEVMTIME 0x40000000 /* Never update mod times for devs */
#define MNT_SOFTDEP 0x80000000 /* Use soft dependencies */
#define __MNT_BASIC_FLAGS \
{ MNT_ASYNC, 0, "asynchronous" }, \
{ MNT_EXTATTR, 0, "extattr" }, \
{ MNT_IGNORE, 0, "hidden" }, \
{ MNT_LOG, 0, "log" }, \
{ MNT_NOATIME, 0, "noatime" }, \
{ MNT_NOCOREDUMP, 0, "nocoredump" }, \
{ MNT_NODEV, 0, "nodev" }, \
{ MNT_NODEVMTIME, 0, "nodevmtime" }, \
{ MNT_NOEXEC, 0, "noexec" }, \
{ MNT_NOSUID, 0, "nosuid" }, \
{ MNT_RDONLY, 0, "read-only" }, \
{ MNT_RELATIME, 0, "relatime" }, \
{ MNT_SOFTDEP, 0, "soft dependencies" }, \
{ MNT_SYMPERM, 0, "symperm" }, \
{ MNT_SYNCHRONOUS, 0, "synchronous" }, \
{ MNT_UNION, 0, "union" }, \
#define MNT_BASIC_FLAGS (MNT_ASYNC | MNT_EXTATTR | MNT_LOG | MNT_NOATIME | \
MNT_NOCOREDUMP | MNT_NODEV | MNT_NODEVMTIME | MNT_NOEXEC | MNT_NOSUID | \
MNT_RDONLY | MNT_RELATIME | MNT_SOFTDEP | MNT_SYMPERM | \
MNT_SYNCHRONOUS | MNT_UNION)
/*
* exported mount flags.
*/
#define MNT_EXRDONLY 0x00000080 /* exported read only */
#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 */
#define MNT_EXNORESPORT 0x08000000 /* don't enforce reserved ports (NFS) */
#define MNT_EXPUBLIC 0x10000000 /* public export (WebNFS) */
#define __MNT_EXPORTED_FLAGS \
{ MNT_EXRDONLY, 1, "exported read-only" }, \
{ MNT_EXPORTED, 0, "NFS exported" }, \
{ MNT_DEFEXPORTED, 1, "exported to the world" }, \
{ MNT_EXPORTANON, 1, "anon uid mapping" }, \
{ MNT_EXKERB, 1, "kerberos uid mapping" }, \
{ MNT_EXNORESPORT, 0, "non-reserved ports" }, \
{ MNT_EXPUBLIC, 0, "WebNFS exports" },
/*
* Flags set by internal operations.
*/
#define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
#define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
#define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
#define __MNT_INTERNAL_FLAGS \
{ MNT_LOCAL, 0, "local" }, \
{ MNT_QUOTA, 0, "with quotas" }, \
{ MNT_ROOTFS, 1, "root file system" },
/*
* Mask of flags that are visible to statvfs()
*/
#define MNT_VISFLAGMASK ( \
MNT_RDONLY | \
MNT_SYNCHRONOUS | \
MNT_NOEXEC | \
MNT_NOSUID | \
MNT_NODEV | \
MNT_UNION | \
MNT_ASYNC | \
MNT_NOCOREDUMP | \
MNT_IGNORE | \
MNT_NOATIME | \
MNT_SYMPERM | \
MNT_NODEVMTIME | \
MNT_SOFTDEP | \
MNT_EXRDONLY | \
MNT_EXPORTED | \
MNT_DEFEXPORTED | \
MNT_EXPORTANON | \
MNT_EXKERB | \
MNT_EXNORESPORT | \
MNT_EXPUBLIC | \
MNT_LOCAL | \
MNT_QUOTA | \
MNT_ROOTFS | \
MNT_LOG | \
MNT_EXTATTR)
/*
* External filesystem control flags.
*/
#define MNT_UPDATE 0x00010000 /* not a real mount, just an update */
#define MNT_RELOAD 0x00040000 /* reload filesystem data */
#define MNT_FORCE 0x00080000 /* force unmount or readonly change */
#define MNT_GETARGS 0x00400000 /* retrieve file system specific args */
#define MNT_OP_FLAGS (MNT_UPDATE|MNT_RELOAD|MNT_FORCE|MNT_GETARGS)
#define __MNT_EXTERNAL_FLAGS \
{ MNT_UPDATE, 1, "being updated" }, \
{ MNT_RELOAD, 1, "reload filesystem data" }, \
{ MNT_FORCE, 1, "force unmount or readonly change" }, \
{ MNT_GETARGS, 1, "retrieve mount arguments" },
/*
* Internal filesystem control flags.
* These are set in struct mount mnt_iflag.
*
* IMNT_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 IMNT_GONE 0x00000001 /* filesystem is gone.. */
#define IMNT_UNMOUNT 0x00000002 /* unmount in progress */
#define IMNT_WANTRDWR 0x00000004 /* upgrade to read/write requested */
#define IMNT_DTYPE 0x00000040 /* returns d_type fields */
#define IMNT_HAS_TRANS 0x00000080 /* supports transactions */
#define IMNT_MPSAFE 0x00000100 /* file system code MP safe */
#define IMNT_CAN_RWTORO 0x00000200 /* can downgrade fs to from rw to r/o */
#define __MNT_FLAGS \
__MNT_BASIC_FLAGS \
__MNT_EXPORTED_FLAGS \
__MNT_INTERNAL_FLAGS \
__MNT_EXTERNAL_FLAGS
#define __MNT_FLAG_BITS \
"\20" \
"\40MNT_SOFTDEP" \
"\37MNT_NODEVMTIME" \
"\36MNT_SYMPERM" \
"\35MNT_EXPUBLIC" \
"\34MNT_EXNORESPORT" \
"\33MNT_NOATIME" \
"\32MNT_LOG" \
"\31MNT_EXTATTR" \
"\30MNT_UNUSED" \
"\27MNT_GETARGS" \
"\26MNT_UNUSED" \
"\25MNT_IGNORE" \
"\24MNT_FORCE" \
"\23MNT_RELOAD" \
"\22MNT_RELATIME" \
"\21MNT_UPDATE" \
"\20MNT_NOCOREDUMP" \
"\17MNT_ROOTFS" \
"\16MNT_QUOTA" \
"\15MNT_LOCAL" \
"\14MNT_EXKERB" \
"\13MNT_EXPORTANON" \
"\12MNT_DEFEXPORTED" \
"\11MNT_EXPORTED" \
"\10MNT_EXRDONLY" \
"\07MNT_ASYNC" \
"\06MNT_UNION" \
"\05MNT_NODEV" \
"\04MNT_NOSUID" \
"\03MNT_NOEXEC" \
"\02MNT_SYNCHRONOUS" \
"\01MNT_RDONLY"
#define __IMNT_FLAG_BITS \
"\20" \
"\12IMNT_CAN_RWTORO" \
"\11IMNT_MPSAFE" \
"\10IMNT_HAS_TRANS" \
"\07IMNT_DTYPE" \
"\03IMNT_WANTRDWR" \
"\02IMNT_UNMOUNT" \
"\01IMNT_GONE"
/*
* Flags for various system call interfaces.
*
* waitfor flags to vfs_sync() and getvfsstat()
*/
#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_LAZY 3 /* push data not written by filesystem syncer */
#endif /* _SYS_FSTYPES_H_ */
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