1 /*
2  * Copyright (C) 2004 Free Software Foundation, Inc.
3  * Copyright (c) 2002 Networks Associates Technology, Inc.
4  * All rights reserved.
5  *
6  * This software was developed for the FreeBSD Project by Marshall
7  * Kirk McKusick and Network Associates Laboratories, the Security
8  * Research Division of Network Associates, Inc. under DARPA/SPAWAR
9  * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
10  * research program
11  *
12  * Copyright (c) 1982, 1989, 1993
13  *	The Regents of the University of California.  All rights reserved.
14  * (c) UNIX System Laboratories, Inc.
15  * All or some portions of this file are derived from material licensed
16  * to the University of California by American Telephone and Telegraph
17  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
18  * the permission of UNIX System Laboratories, Inc.
19  *
20  * Redistribution and use in source and binary forms, with or without
21  * modification, are permitted provided that the following conditions
22  * are met:
23  * 1. Redistributions of source code must retain the above copyright
24  *    notice, this list of conditions and the following disclaimer.
25  * 2. Redistributions in binary form must reproduce the above copyright
26  *    notice, this list of conditions and the following disclaimer in the
27  *    documentation and/or other materials provided with the distribution.
28  * 3. The names of the authors may not be used to endorse or promote
29  *    products derived from this software without specific prior written
30  *    permission.
31  *
32  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
42  * SUCH DAMAGE.
43  *
44  *	@(#)dinode.h	8.3 (Berkeley) 1/21/94
45  * $FreeBSD: src/sys/ufs/ufs/dinode.h,v 1.11 2002/07/16 22:36:00 mckusick Exp $
46  */
47 
48 #ifndef _GRUB_UFS2_H_
49 #define _GRUB_UFS2_H_
50 
51 typedef signed char            grub_int8_t;
52 typedef signed short           grub_int16_t;
53 typedef signed int             grub_int32_t;
54 typedef signed long long int   grub_int64_t;
55 typedef unsigned char          grub_uint8_t;
56 typedef unsigned short         grub_uint16_t;
57 typedef unsigned int           grub_uint32_t;
58 typedef unsigned long long int grub_uint64_t;
59 
60 typedef grub_uint8_t                grub_u_char;
61 typedef grub_uint32_t               grub_u_int;
62 
63 typedef grub_uint8_t                grub_u_int8_t;
64 typedef grub_uint16_t               grub_u_int16_t;
65 typedef grub_uint32_t               grub_u_int32_t;
66 typedef grub_uint64_t               grub_u_int64_t;
67 
68 #define i_size di_size
69 
70 
71 #define DEV_BSIZE 512
72 
73 /*
74  * The root inode is the root of the filesystem.  Inode 0 can't be used for
75  * normal purposes and historically bad blocks were linked to inode 1, thus
76  * the root inode is 2.  (Inode 1 is no longer used for this purpose, however
77  * numerous dump tapes make this assumption, so we are stuck with it).
78  */
79 #define	ROOTINO	((grub_ino_t)2)
80 
81 /*
82  * The size of physical and logical block numbers and time fields in UFS.
83  */
84 typedef grub_int32_t ufs1_daddr_t;
85 typedef	grub_int64_t	ufs2_daddr_t;
86 typedef grub_int64_t ufs_lbn_t;
87 typedef grub_int64_t ufs_time_t;
88 
89 /* inode number */
90 typedef grub_uint32_t      grub_ino_t;
91 
92 /* File permissions. */
93 #define	IEXEC		0000100		/* Executable. */
94 #define	IWRITE		0000200		/* Writeable. */
95 #define	IREAD		0000400		/* Readable. */
96 #define	ISVTX		0001000		/* Sticky bit. */
97 #define	ISGID		0002000		/* Set-gid. */
98 #define	ISUID		0004000		/* Set-uid. */
99 
100 /* File types. */
101 #define	IFMT		0170000		/* Mask of file type. */
102 #define	IFIFO		0010000		/* Named pipe (fifo). */
103 #define	IFCHR		0020000		/* Character device. */
104 #define	IFDIR		0040000		/* Directory file. */
105 #define	IFBLK		0060000		/* Block device. */
106 #define	IFREG		0100000		/* Regular file. */
107 #define	IFLNK		0120000		/* Symbolic link. */
108 #define	IFSOCK		0140000		/* UNIX domain socket. */
109 #define	IFWHT		0160000		/* Whiteout. */
110 
111 /*
112  * A dinode contains all the meta-data associated with a UFS2 file.
113  * This structure defines the on-disk format of a dinode. Since
114  * this structure describes an on-disk structure, all its fields
115  * are defined by types with precise widths.
116  */
117 
118 #define	NXADDR	2			/* External addresses in inode. */
119 #define	NDADDR	12			/* Direct addresses in inode. */
120 #define	NIADDR	3			/* Indirect addresses in inode. */
121 
122 struct ufs1_dinode {
123 	grub_u_int16_t       di_mode;        /*   0: IFMT, permissions; see below. */
124 	grub_int16_t         di_nlink;       /*   2: File link count. */
125 	union {
126 		grub_u_int16_t oldids[2];    /*   4: Ffs: old user and group ids. */
127 	} di_u;
128 	grub_u_int64_t       di_size;        /*   8: File byte count. */
129 	grub_int32_t         di_atime;       /*  16: Last access time. */
130 	grub_int32_t         di_atimensec;   /*  20: Last access time. */
131 	grub_int32_t         di_mtime;       /*  24: Last modified time. */
132 	grub_int32_t         di_mtimensec;   /*  28: Last modified time. */
133 	grub_int32_t         di_ctime;       /*  32: Last inode change time. */
134 	grub_int32_t         di_ctimensec;   /*  36: Last inode change time. */
135 	ufs1_daddr_t    di_db[NDADDR];  /*  40: Direct disk blocks. */
136 	ufs1_daddr_t    di_ib[NIADDR];  /*  88: Indirect disk blocks. */
137 	grub_u_int32_t       di_flags;       /* 100: Status flags (chflags). */
138 	grub_int32_t         di_blocks;      /* 104: Blocks actually held. */
139 	grub_int32_t         di_gen;         /* 108: Generation number. */
140 	grub_u_int32_t       di_uid;         /* 112: File owner. */
141 	grub_u_int32_t       di_gid;         /* 116: File group. */
142 	grub_int32_t         di_spare[2];    /* 120: Reserved; currently unused */
143 };
144 
145 struct ufs2_dinode {
146 	grub_u_int16_t	di_mode;	/*   0: IFMT, permissions; see below. */
147 	grub_int16_t		di_nlink;	/*   2: File link count. */
148 	grub_u_int32_t	di_uid;		/*   4: File owner. */
149 	grub_u_int32_t	di_gid;		/*   8: File group. */
150 	grub_u_int32_t	di_blksize;	/*  12: Inode blocksize. */
151 	grub_u_int64_t	di_size;	/*  16: File byte count. */
152 	grub_u_int64_t	di_blocks;	/*  24: Bytes actually held. */
153 	ufs_time_t	di_atime;	/*  32: Last access time. */
154 	ufs_time_t	di_mtime;	/*  40: Last modified time. */
155 	ufs_time_t	di_ctime;	/*  48: Last inode change time. */
156 	ufs_time_t	di_birthtime;	/*  56: Inode creation time. */
157 	grub_int32_t		di_mtimensec;	/*  64: Last modified time. */
158 	grub_int32_t		di_atimensec;	/*  68: Last access time. */
159 	grub_int32_t		di_ctimensec;	/*  72: Last inode change time. */
160 	grub_int32_t		di_birthnsec;	/*  76: Inode creation time. */
161 	grub_int32_t		di_gen;		/*  80: Generation number. */
162 	grub_u_int32_t	di_kernflags;	/*  84: Kernel flags. */
163 	grub_u_int32_t	di_flags;	/*  88: Status flags (chflags). */
164 	grub_int32_t		di_extsize;	/*  92: External attributes block. */
165 	ufs2_daddr_t	di_extb[NXADDR];/*  96: External attributes block. */
166 	ufs2_daddr_t	di_db[NDADDR];	/* 112: Direct disk blocks. */
167 	ufs2_daddr_t	di_ib[NIADDR];	/* 208: Indirect disk blocks. */
168 	grub_int64_t		di_spare[3];	/* 232: Reserved; currently unused */
169 };
170 
171 #define	MAXNAMLEN	255
172 
173 struct	direct {
174 	grub_u_int32_t d_ino;		/* inode number of entry */
175 	grub_u_int16_t d_reclen;		/* length of this record */
176 	grub_u_int8_t  d_type; 		/* file type, see below */
177 	grub_u_int8_t  d_namlen;		/* length of string in d_name */
178 	char	  d_name[MAXNAMLEN + 1];/* name with length <= MAXNAMLEN */
179 };
180 
181 /*
182  * File types
183  */
184 #define DT_UNKNOWN       0
185 #define DT_FIFO          1
186 #define DT_CHR           2
187 #define DT_DIR           4
188 #define DT_BLK           6
189 #define DT_REG           8
190 #define DT_LNK          10
191 #define DT_SOCK         12
192 #define DT_WHT          14
193 
194 /*
195  * Superblock offsets
196  */
197 #define SBLOCK_FLOPPY        0
198 #define SBLOCK_UFS1       8192
199 #define SBLOCK_UFS2      65536
200 #define SBLOCK_PIGGY    262144
201 #define SBLOCKSIZE        8192
202 #define SBLOCKSEARCH \
203 	{ SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
204 
205 #define MAXMNTLEN	512
206 
207 #define	NOCSPTRS	((128 / sizeof(void *)) - 4)
208 
209 /*
210  * The maximum number of snapshot nodes that can be associated
211  * with each filesystem. This limit affects only the number of
212  * snapshot files that can be recorded within the superblock so
213  * that they can be found when the filesystem is mounted. However,
214  * maintaining too many will slow the filesystem performance, so
215  * having this limit is a good idea.
216  */
217 #define FSMAXSNAP 20
218 
219 /*
220  * Per cylinder group information; summarized in blocks allocated
221  * from first cylinder group data blocks.  These blocks have to be
222  * read in from fs_csaddr (size fs_cssize) in addition to the
223  * super block.
224  */
225 struct csum {
226 	grub_int32_t	cs_ndir;		/* number of directories */
227 	grub_int32_t	cs_nbfree;		/* number of free blocks */
228 	grub_int32_t	cs_nifree;		/* number of free inodes */
229 	grub_int32_t	cs_nffree;		/* number of free frags */
230 };
231 
232 struct csum_total {
233 	grub_int64_t	cs_ndir;		/* number of directories */
234 	grub_int64_t	cs_nbfree;		/* number of free blocks */
235 	grub_int64_t	cs_nifree;		/* number of free inodes */
236 	grub_int64_t	cs_nffree;		/* number of free frags */
237 	grub_int64_t	cs_numclusters;		/* number of free clusters */
238 	grub_int64_t	cs_spare[3];		/* future expansion */
239 };
240 
241 /*
242  * Super block for an FFS filesystem.
243  */
244 struct fs {
245 	grub_int32_t	 fs_firstfield;		/* historic filesystem linked list, */
246 	grub_int32_t	 fs_unused_1;		/*     used for incore super blocks */
247 	grub_int32_t	 fs_sblkno;		/* offset of super-block in filesys */
248 	grub_int32_t	 fs_cblkno;		/* offset of cyl-block in filesys */
249 	grub_int32_t	 fs_iblkno;		/* offset of inode-blocks in filesys */
250 	grub_int32_t	 fs_dblkno;		/* offset of first data after cg */
251 	grub_int32_t	 fs_old_cgoffset;	/* cylinder group offset in cylinder */
252 	grub_int32_t	 fs_old_cgmask;		/* used to calc mod fs_ntrak */
253 	grub_int32_t  fs_old_time;		/* last time written */
254 	grub_int32_t	 fs_old_size;		/* number of blocks in fs */
255 	grub_int32_t	 fs_old_dsize;		/* number of data blocks in fs */
256 	grub_int32_t	 fs_ncg;		/* number of cylinder groups */
257 	grub_int32_t	 fs_bsize;		/* size of basic blocks in fs */
258 	grub_int32_t	 fs_fsize;		/* size of frag blocks in fs */
259 	grub_int32_t	 fs_frag;		/* number of frags in a block in fs */
260 /* these are configuration parameters */
261 	grub_int32_t	 fs_minfree;		/* minimum percentage of free blocks */
262 	grub_int32_t	 fs_old_rotdelay;	/* num of ms for optimal next block */
263 	grub_int32_t	 fs_old_rps;		/* disk revolutions per second */
264 /* these fields can be computed from the others */
265 	grub_int32_t	 fs_bmask;		/* ``blkoff'' calc of blk offsets */
266 	grub_int32_t	 fs_fmask;		/* ``fragoff'' calc of frag offsets */
267 	grub_int32_t	 fs_bshift;		/* ``lblkno'' calc of logical blkno */
268 	grub_int32_t	 fs_fshift;		/* ``numfrags'' calc number of frags */
269 /* these are configuration parameters */
270 	grub_int32_t	 fs_maxcontig;		/* max number of contiguous blks */
271 	grub_int32_t	 fs_maxbpg;		/* max number of blks per cyl group */
272 /* these fields can be computed from the others */
273 	grub_int32_t	 fs_fragshift;		/* block to frag shift */
274 	grub_int32_t	 fs_fsbtodb;		/* fsbtodb and dbtofsb shift constant */
275 	grub_int32_t	 fs_sbsize;		/* actual size of super block */
276 	grub_int32_t	 fs_spare1[2];		/* old fs_csmask */
277 					/* old fs_csshift */
278 	grub_int32_t	 fs_nindir;		/* value of NINDIR */
279 	grub_int32_t	 fs_inopb;		/* value of INOPB */
280 	grub_int32_t	 fs_old_nspf;		/* value of NSPF */
281 /* yet another configuration parameter */
282 	grub_int32_t	 fs_optim;		/* optimization preference, see below */
283 	grub_int32_t	 fs_old_npsect;		/* # sectors/track including spares */
284 	grub_int32_t	 fs_old_interleave;	/* hardware sector interleave */
285 	grub_int32_t	 fs_old_trackskew;	/* sector 0 skew, per track */
286 	grub_int32_t	 fs_id[2];		/* unique filesystem id */
287 /* sizes determined by number of cylinder groups and their sizes */
288 	grub_int32_t	 fs_old_csaddr;		/* blk addr of cyl grp summary area */
289 	grub_int32_t	 fs_cssize;		/* size of cyl grp summary area */
290 	grub_int32_t	 fs_cgsize;		/* cylinder group size */
291 	grub_int32_t	 fs_spare2;		/* old fs_ntrak */
292 	grub_int32_t	 fs_old_nsect;		/* sectors per track */
293 	grub_int32_t  fs_old_spc;		/* sectors per cylinder */
294 	grub_int32_t	 fs_old_ncyl;		/* cylinders in filesystem */
295 	grub_int32_t	 fs_old_cpg;		/* cylinders per group */
296 	grub_int32_t	 fs_ipg;		/* inodes per group */
297 	grub_int32_t	 fs_fpg;		/* blocks per group * fs_frag */
298 /* this data must be re-computed after crashes */
299 	struct	csum fs_old_cstotal;	/* cylinder summary information */
300 /* these fields are cleared at mount time */
301 	grub_int8_t   fs_fmod;		/* super block modified flag */
302 	grub_int8_t   fs_clean;		/* filesystem is clean flag */
303 	grub_int8_t 	 fs_ronly;		/* mounted read-only flag */
304 	grub_int8_t   fs_old_flags;		/* old FS_ flags */
305 	grub_u_char	 fs_fsmnt[MAXMNTLEN];	/* name mounted on */
306 /* these fields retain the current block allocation info */
307 	grub_int32_t	 fs_cgrotor;		/* last cg searched */
308 	void 	*fs_ocsp[NOCSPTRS];	/* padding; was list of fs_cs buffers */
309 	grub_u_int8_t *fs_contigdirs;	/* # of contiguously allocated dirs */
310 	struct	csum *fs_csp;		/* cg summary info buffer for fs_cs */
311 	grub_int32_t	*fs_maxcluster;		/* max cluster in each cyl group */
312 	grub_u_int	*fs_active;		/* used by snapshots to track fs */
313 	grub_int32_t	 fs_old_cpc;		/* cyl per cycle in postbl */
314 	grub_int32_t	 fs_maxbsize;		/* maximum blocking factor permitted */
315 	grub_int64_t	 fs_sparecon64[17];	/* old rotation block list head */
316 	grub_int64_t	 fs_sblockloc;		/* byte offset of standard superblock */
317 	struct	csum_total fs_cstotal;	/* cylinder summary information */
318 	ufs_time_t fs_time;		/* last time written */
319 	grub_int64_t	 fs_size;		/* number of blocks in fs */
320 	grub_int64_t	 fs_dsize;		/* number of data blocks in fs */
321 	ufs2_daddr_t fs_csaddr;		/* blk addr of cyl grp summary area */
322 	grub_int64_t	 fs_pendingblocks;	/* blocks in process of being freed */
323 	grub_int32_t	 fs_pendinginodes;	/* inodes in process of being freed */
324 	grub_int32_t	 fs_snapinum[FSMAXSNAP];/* list of snapshot inode numbers */
325 	grub_int32_t	 fs_avgfilesize;	/* expected average file size */
326 	grub_int32_t	 fs_avgfpdir;		/* expected # of files per directory */
327 	grub_int32_t	 fs_save_cgsize;	/* save real cg size to use fs_bsize */
328 	grub_int32_t	 fs_sparecon32[26];	/* reserved for future constants */
329 	grub_int32_t  fs_flags;		/* see FS_ flags below */
330 	grub_int32_t	 fs_contigsumsize;	/* size of cluster summary array */
331 	grub_int32_t	 fs_maxsymlinklen;	/* max length of an internal symlink */
332 	grub_int32_t	 fs_old_inodefmt;	/* format of on-disk inodes */
333 	grub_u_int64_t fs_maxfilesize;	/* maximum representable file size */
334 	grub_int64_t	 fs_qbmask;		/* ~fs_bmask for use with 64-bit size */
335 	grub_int64_t	 fs_qfmask;		/* ~fs_fmask for use with 64-bit size */
336 	grub_int32_t	 fs_state;		/* validate fs_clean field */
337 	grub_int32_t	 fs_old_postblformat;	/* format of positional layout tables */
338 	grub_int32_t	 fs_old_nrpos;		/* number of rotational positions */
339 	grub_int32_t	 fs_spare5[2];		/* old fs_postbloff */
340 					/* old fs_rotbloff */
341 	grub_int32_t	 fs_magic;		/* magic number */
342 };
343 
344 /*
345  * Filesystem identification
346  */
347 #define FS_UFS1_MAGIC   0x011954        /* UFS1 fast filesystem magic number */
348 #define	FS_UFS2_MAGIC	0x19540119	/* UFS2 fast filesystem magic number */
349 
350 /*
351  * Turn filesystem block numbers into disk block addresses.
352  * This maps filesystem blocks to device size blocks.
353  */
354 #define fsbtodb(fs, b)	((b) << (fs)->fs_fsbtodb)
355 #define	dbtofsb(fs, b)	((b) >> (fs)->fs_fsbtodb)
356 
357 /*
358  * Cylinder group macros to locate things in cylinder groups.
359  * They calc filesystem addresses of cylinder group data structures.
360  */
361 #define	cgbase(fs, c)	((ufs2_daddr_t)((fs)->fs_fpg * (c)))
362 #define	cgimin(fs, c)	(cgstart(fs, c) + (fs)->fs_iblkno)	/* inode blk */
363 #define cgstart(fs, c)							\
364        ((fs)->fs_magic == FS_UFS2_MAGIC ? cgbase(fs, c) :		\
365        (cgbase(fs, c) + (fs)->fs_old_cgoffset * ((c) & ~((fs)->fs_old_cgmask))))
366 
367 /*
368  * Macros for handling inode numbers:
369  *     inode number to filesystem block offset.
370  *     inode number to cylinder group number.
371  *     inode number to filesystem block address.
372  */
373 #define	ino_to_cg(fs, x)	((x) / (fs)->fs_ipg)
374 #define	ino_to_fsba(fs, x)						\
375 	((ufs2_daddr_t)(cgimin(fs, ino_to_cg(fs, x)) +			\
376 	    (blkstofrags((fs), (((x) % (fs)->fs_ipg) / INOPB(fs))))))
377 #define	ino_to_fsbo(fs, x)	((x) % INOPB(fs))
378 
379 /*
380  * The following macros optimize certain frequently calculated
381  * quantities by using shifts and masks in place of divisions
382  * modulos and multiplications.
383  */
384 #define blkoff(fs, loc)		/* calculates (loc % fs->fs_bsize) */ \
385 	((loc) & (fs)->fs_qbmask)
386 
387 /* Use this only when `blk' is known to be small, e.g., < NDADDR. */
388 #define smalllblktosize(fs, blk)    /* calculates (blk * fs->fs_bsize) */ \
389 	((blk) << (fs)->fs_bshift)
390 
391 
392 #define lblkno(fs, loc)		/* calculates (loc / fs->fs_bsize) */ \
393 	((loc) >> (fs)->fs_bshift)
394 
395 #define fragroundup(fs, size)	/* calculates roundup(size, fs->fs_fsize) */ \
396 	(((size) + (fs)->fs_qfmask) & (fs)->fs_fmask)
397 
398 #define fragstoblks(fs, frags)	/* calculates (frags / fs->fs_frag) */ \
399 	((frags) >> (fs)->fs_fragshift)
400 #define blkstofrags(fs, blks)	/* calculates (blks * fs->fs_frag) */ \
401 	((blks) << (fs)->fs_fragshift)
402 #define fragnum(fs, fsb)	/* calculates (fsb % fs->fs_frag) */ \
403 	((fsb) & ((fs)->fs_frag - 1))
404 #define blknum(fs, fsb)		/* calculates rounddown(fsb, fs->fs_frag) */ \
405 	((fsb) &~ ((fs)->fs_frag - 1))
406 
407 /*
408  * Determining the size of a file block in the filesystem.
409  */
410 #define blksize(fs, ip, lbn) \
411 	(((lbn) >= NDADDR || (ip)->i_size >= smalllblktosize(fs, (lbn) + 1)) \
412 	    ? (fs)->fs_bsize \
413 	    : (fragroundup(fs, blkoff(fs, (ip)->i_size))))
414 #define sblksize(fs, size, lbn) \
415 	(((lbn) >= NDADDR || (size) >= ((lbn) + 1) << (fs)->fs_bshift) \
416 	  ? (fs)->fs_bsize \
417 	  : (fragroundup(fs, blkoff(fs, (size)))))
418 
419 
420 /*
421  * Number of inodes in a secondary storage block/fragment.
422  */
423 #define	INOPB(fs)	((fs)->fs_inopb)
424 #define	INOPF(fs)	((fs)->fs_inopb >> (fs)->fs_fragshift)
425 
426 /*
427  * Number of indirects in a filesystem block.
428  */
429 #define	NINDIR(fs)	((fs)->fs_nindir)
430 
431 #define FS_UNCLEAN    0x01      /* filesystem not clean at mount */
432 #define FS_DOSOFTDEP  0x02      /* filesystem using soft dependencies */
433 #define FS_NEEDSFSCK  0x04      /* filesystem needs sync fsck before mount */
434 #define FS_INDEXDIRS  0x08      /* kernel supports indexed directories */
435 #define FS_ACLS       0x10      /* file system has ACLs enabled */
436 #define FS_MULTILABEL 0x20      /* file system is MAC multi-label */
437 #define FS_FLAGS_UPDATED 0x80   /* flags have been moved to new location */
438 
439 #endif /* _GRUB_UFS2_H_ */
440