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1 /* xfs.h - an extraction from xfsprogs-1.3.5/include/xfs* into one file */
2 /*
3  *  GRUB  --  GRand Unified Bootloader
4  *  Copyright (C) 2000  Silicon Graphics, Inc.  All Rights Reserved.
5  *  Copyright (C) 2001,2004  Free Software Foundation, Inc.
6  *
7  *  This program is free software; you can redistribute it and/or modify it
8  *  under the terms of version 2 of the GNU General Public License as
9  *  published by the Free Software Foundation.
10  *
11  *  This program is distributed in the hope that it would be useful, but
12  *  WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14  *
15  *  Further, this software is distributed without any warranty that it is
16  *  free of the rightful claim of any third person regarding infringement
17  *  or the like.  Any license provided herein, whether implied or
18  *  otherwise, applies only to this software file.  Patent licenses, if
19  *  any, provided herein do not apply to combinations of this program with
20  *  other software, or any other product whatsoever.
21  *
22  *  You should have received a copy of the GNU General Public License along
23  *  with this program; if not, write the Free Software Foundation, Inc., 59
24  *  Temple Place - Suite 330, Boston MA 02111-1307, USA.
25  *
26  *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
27  *  Mountain View, CA  94043, or:
28  *
29  *  http://www.sgi.com
30  *
31  *  For further information regarding this notice, see:
32  *
33  *  http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
34  */
35 
36 typedef signed char	xfs_int8_t;
37 typedef unsigned char	xfs_uint8_t;
38 typedef short		xfs_int16_t;
39 typedef unsigned short	xfs_uint16_t;
40 typedef int		xfs_int32_t;
41 typedef unsigned int	xfs_uint32_t;
42 typedef long long	xfs_int64_t;
43 typedef unsigned long long xfs_uint64_t;
44 
45 typedef xfs_uint64_t	xfs_ino_t;
46 typedef	xfs_uint32_t	xfs_agino_t;
47 typedef xfs_int64_t	xfs_daddr_t;
48 typedef xfs_int64_t	xfs_off_t;
49 typedef xfs_uint8_t	uuid_t[16];
50 
51 
52 /* those are from xfs_types.h */
53 
54 typedef xfs_uint32_t	xfs_agblock_t;	/* blockno in alloc. group */
55 typedef	xfs_uint32_t	xfs_extlen_t;	/* extent length in blocks */
56 typedef	xfs_uint32_t	xfs_agnumber_t;	/* allocation group number */
57 typedef xfs_int32_t	xfs_extnum_t;	/* # of extents in a file */
58 typedef xfs_int16_t	xfs_aextnum_t;	/* # extents in an attribute fork */
59 typedef	xfs_int64_t	xfs_fsize_t;	/* bytes in a file */
60 
61 typedef	xfs_uint32_t	xfs_dablk_t;	/* dir/attr block number (in file) */
62 typedef	xfs_uint32_t	xfs_dahash_t;	/* dir/attr hash value */
63 
64 /*
65  * Disk based types:
66  */
67 typedef xfs_uint64_t	xfs_dfsbno_t;	/* blockno in filesystem (agno|agbno) */
68 typedef xfs_uint64_t	xfs_drfsbno_t;	/* blockno in filesystem (raw) */
69 typedef	xfs_uint64_t	xfs_drtbno_t;	/* extent (block) in realtime area */
70 typedef	xfs_uint64_t	xfs_dfiloff_t;	/* block number in a file */
71 
72 typedef	xfs_uint64_t	xfs_fsblock_t;	/* blockno in filesystem (agno|agbno) */
73 typedef	xfs_uint64_t	xfs_fileoff_t;	/* block number in a file */
74 typedef	xfs_uint64_t	xfs_filblks_t;	/* number of blocks in a file */
75 
76 
77 /* those are from xfs_sb.h */
78 
79 #define	XFS_SB_MAGIC		0x58465342	/* 'XFSB'*/
80 #define	XFS_SB_VERSION_4	4		/* 6.2+ - bitmask version */
81 #define	XFS_SB_VERSION_NUMBITS	0x000f
82 
83 typedef struct xfs_sb
84 {
85 	xfs_uint32_t	sb_magicnum;	/* magic number == XFS_SB_MAGIC */
86 	xfs_uint32_t	sb_blocksize;	/* logical block size, bytes */
87 	xfs_drfsbno_t	sb_dblocks;	/* number of data blocks */
88 	xfs_drfsbno_t	sb_rblocks;	/* number of realtime blocks */
89 	xfs_drtbno_t	sb_rextents;	/* number of realtime extents */
90 	uuid_t		sb_uuid;	/* file system unique id */
91 	xfs_dfsbno_t	sb_logstart;	/* starting block of log if internal */
92 	xfs_ino_t	sb_rootino;	/* root inode number */
93 	xfs_ino_t	sb_rbmino;	/* bitmap inode for realtime extents */
94 	xfs_ino_t	sb_rsumino;	/* summary inode for rt bitmap */
95 	xfs_agblock_t	sb_rextsize;	/* realtime extent size, blocks */
96 	xfs_agblock_t	sb_agblocks;	/* size of an allocation group */
97 	xfs_agnumber_t	sb_agcount;	/* number of allocation groups */
98 	xfs_extlen_t	sb_rbmblocks;	/* number of rt bitmap blocks */
99 	xfs_extlen_t	sb_logblocks;	/* number of log blocks */
100 	xfs_uint16_t	sb_versionnum;	/* header version == XFS_SB_VERSION */
101 	xfs_uint16_t	sb_sectsize;	/* volume sector size, bytes */
102 	xfs_uint16_t	sb_inodesize;	/* inode size, bytes */
103 	xfs_uint16_t	sb_inopblock;	/* inodes per block */
104 	char		sb_fname[12];	/* file system name */
105 	xfs_uint8_t	sb_blocklog;	/* log2 of sb_blocksize */
106 	xfs_uint8_t	sb_sectlog;	/* log2 of sb_sectsize */
107 	xfs_uint8_t	sb_inodelog;	/* log2 of sb_inodesize */
108 	xfs_uint8_t	sb_inopblog;	/* log2 of sb_inopblock */
109 	xfs_uint8_t	sb_agblklog;	/* log2 of sb_agblocks (rounded up) */
110 	xfs_uint8_t	sb_rextslog;	/* log2 of sb_rextents */
111 	xfs_uint8_t	sb_inprogress;	/* mkfs is in progress, don't mount */
112 	xfs_uint8_t	sb_imax_pct;	/* max % of fs for inode space */
113 					/* statistics */
114 	/*
115 	 * These fields must remain contiguous.  If you really
116 	 * want to change their layout, make sure you fix the
117 	 * code in xfs_trans_apply_sb_deltas().
118 	 */
119 	xfs_uint64_t	sb_icount;	/* allocated inodes */
120 	xfs_uint64_t	sb_ifree;	/* free inodes */
121 	xfs_uint64_t	sb_fdblocks;	/* free data blocks */
122 	xfs_uint64_t	sb_frextents;	/* free realtime extents */
123 	/*
124 	 * End contiguous fields.
125 	 */
126 	xfs_ino_t	sb_uquotino;	/* user quota inode */
127 	xfs_ino_t	sb_gquotino;	/* group quota inode */
128 	xfs_uint16_t	sb_qflags;	/* quota flags */
129 	xfs_uint8_t	sb_flags;	/* misc. flags */
130 	xfs_uint8_t	sb_shared_vn;	/* shared version number */
131 	xfs_extlen_t	sb_inoalignmt;	/* inode chunk alignment, fsblocks */
132 	xfs_uint32_t	sb_unit;	/* stripe or raid unit */
133 	xfs_uint32_t	sb_width;	/* stripe or raid width */
134 	xfs_uint8_t	sb_dirblklog;	/* log2 of dir block size (fsbs) */
135         xfs_uint8_t       sb_dummy[7];    /* padding */
136 } xfs_sb_t;
137 
138 
139 /* those are from xfs_btree.h */
140 
141 /*
142  * Long form header: bmap btrees.
143  */
144 typedef struct xfs_btree_lblock
145 {
146 	xfs_uint32_t	bb_magic;	/* magic number for block type */
147 	xfs_uint16_t	bb_level;	/* 0 is a leaf */
148 	xfs_uint16_t	bb_numrecs;	/* current # of data records */
149 	xfs_dfsbno_t	bb_leftsib;	/* left sibling block or NULLDFSBNO */
150 	xfs_dfsbno_t	bb_rightsib;	/* right sibling block or NULLDFSBNO */
151 } xfs_btree_lblock_t;
152 
153 /*
154  * Combined header and structure, used by common code.
155  */
156 typedef struct xfs_btree_hdr
157 {
158 	xfs_uint32_t	bb_magic;	/* magic number for block type */
159 	xfs_uint16_t	bb_level;	/* 0 is a leaf */
160 	xfs_uint16_t	bb_numrecs;	/* current # of data records */
161 } xfs_btree_hdr_t;
162 
163 typedef struct xfs_btree_block
164 {
165 	xfs_btree_hdr_t	bb_h;		/* header */
166 	union		{
167 		struct	{
168 			xfs_agblock_t	bb_leftsib;
169 			xfs_agblock_t	bb_rightsib;
170 		}	s;		/* short form pointers */
171 		struct	{
172 			xfs_dfsbno_t	bb_leftsib;
173 			xfs_dfsbno_t	bb_rightsib;
174 		}	l;		/* long form pointers */
175 	}		bb_u;		/* rest */
176 } xfs_btree_block_t;
177 
178 /* those are from xfs_bmap_btree.h */
179 
180 /*
181  * Bmap root header, on-disk form only.
182  */
183 typedef struct xfs_bmdr_block
184 {
185 	xfs_uint16_t	bb_level;	/* 0 is a leaf */
186 	xfs_uint16_t	bb_numrecs;	/* current # of data records */
187 } xfs_bmdr_block_t;
188 
189 /*
190  * Bmap btree record and extent descriptor.
191  * For 32-bit kernels,
192  *  l0:31 is an extent flag (value 1 indicates non-normal).
193  *  l0:0-30 and l1:9-31 are startoff.
194  *  l1:0-8, l2:0-31, and l3:21-31 are startblock.
195  *  l3:0-20 are blockcount.
196  * For 64-bit kernels,
197  *  l0:63 is an extent flag (value 1 indicates non-normal).
198  *  l0:9-62 are startoff.
199  *  l0:0-8 and l1:21-63 are startblock.
200  *  l1:0-20 are blockcount.
201  */
202 
203 #define	BMBT_USE_64	1
204 
205 typedef struct xfs_bmbt_rec_32
206 {
207 	xfs_uint32_t		l0, l1, l2, l3;
208 } xfs_bmbt_rec_32_t;
209 typedef struct xfs_bmbt_rec_64
210 {
211 	xfs_uint64_t		l0, l1;
212 } xfs_bmbt_rec_64_t;
213 
214 #if BMBT_USE_64
215 typedef	xfs_uint64_t	xfs_bmbt_rec_base_t;	/* use this for casts */
216 typedef xfs_bmbt_rec_64_t xfs_bmbt_rec_t, xfs_bmdr_rec_t;
217 #else	/* !BMBT_USE_64 */
218 typedef	xfs_uint32_t	xfs_bmbt_rec_base_t;	/* use this for casts */
219 typedef xfs_bmbt_rec_32_t xfs_bmbt_rec_t, xfs_bmdr_rec_t;
220 #endif	/* BMBT_USE_64 */
221 
222 /*
223  * Key structure for non-leaf levels of the tree.
224  */
225 typedef struct xfs_bmbt_key
226 {
227 	xfs_dfiloff_t	br_startoff;	/* starting file offset */
228 } xfs_bmbt_key_t, xfs_bmdr_key_t;
229 
230 typedef xfs_dfsbno_t xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;	/* btree pointer type */
231 					/* btree block header type */
232 typedef	struct xfs_btree_lblock xfs_bmbt_block_t;
233 
234 
235 /* those are from xfs_dir2.h */
236 /*
237  * Directory version 2.
238  * There are 4 possible formats:
239  *	shortform
240  *	single block - data with embedded leaf at the end
241  *	multiple data blocks, single leaf+freeindex block
242  *	data blocks, node&leaf blocks (btree), freeindex blocks
243  *
244  *	The shortform format is in xfs_dir2_sf.h.
245  *	The single block format is in xfs_dir2_block.h.
246  *	The data block format is in xfs_dir2_data.h.
247  *	The leaf and freeindex block formats are in xfs_dir2_leaf.h.
248  *	Node blocks are the same as the other version, in xfs_da_btree.h.
249  */
250 
251 /*
252  * Byte offset in data block and shortform entry.
253  */
254 typedef	xfs_uint16_t	xfs_dir2_data_off_t;
255 
256 /*
257  * Byte offset in a directory.
258  */
259 typedef	xfs_off_t		xfs_dir2_off_t;
260 
261 /* those are from xfs_da_btree.h */
262 /*========================================================================
263  * Directory Structure when greater than XFS_LBSIZE(mp) bytes.
264  *========================================================================*/
265 
266 /*
267  * This structure is common to both leaf nodes and non-leaf nodes in the Btree.
268  *
269  * Is is used to manage a doubly linked list of all blocks at the same
270  * level in the Btree, and to identify which type of block this is.
271  */
272 #define	XFS_DIR2_LEAF1_MAGIC	0xd2f1	/* magic number: v2 dirlf single blks */
273 #define	XFS_DIR2_LEAFN_MAGIC	0xd2ff	/* magic number: v2 dirlf multi blks */
274 
275 typedef struct xfs_da_blkinfo {
276 	xfs_dablk_t forw;			/* previous block in list */
277 	xfs_dablk_t back;			/* following block in list */
278 	xfs_uint16_t magic;			/* validity check on block */
279 	xfs_uint16_t pad;				/* unused */
280 } xfs_da_blkinfo_t;
281 
282 /*
283  * This is the structure of the root and intermediate nodes in the Btree.
284  * The leaf nodes are defined above.
285  *
286  * Entries are not packed.
287  *
288  * Since we have duplicate keys, use a binary search but always follow
289  * all match in the block, not just the first match found.
290  */
291 
292 typedef struct xfs_da_intnode {
293 	struct xfs_da_node_hdr {	/* constant-structure header block */
294 		xfs_da_blkinfo_t info;	/* block type, links, etc. */
295 		xfs_uint16_t count;	/* count of active entries */
296 		xfs_uint16_t level;	/* level above leaves (leaf == 0) */
297 	} hdr;
298 	struct xfs_da_node_entry {
299 		xfs_dahash_t hashval;	/* hash value for this descendant */
300 		xfs_dablk_t before;	/* Btree block before this key */
301 	} btree[1];			/* variable sized array of keys */
302 } xfs_da_intnode_t;
303 
304 
305 /* those are from xfs_dir2_data.h */
306 /*
307  * Directory format 2, data block structures.
308  */
309 
310 /*
311  * Constants.
312  */
313 #define	XFS_DIR2_DATA_FREE_TAG	0xffff
314 #define	XFS_DIR2_DATA_FD_COUNT	3
315 
316 /*
317  * Structures.
318  */
319 
320 /*
321  * Describe a free area in the data block.
322  * The freespace will be formatted as a xfs_dir2_data_unused_t.
323  */
324 typedef struct xfs_dir2_data_free {
325 	xfs_dir2_data_off_t	offset;		/* start of freespace */
326 	xfs_dir2_data_off_t	length;		/* length of freespace */
327 } xfs_dir2_data_free_t;
328 
329 /*
330  * Header for the data blocks.
331  * Always at the beginning of a directory-sized block.
332  * The code knows that XFS_DIR2_DATA_FD_COUNT is 3.
333  */
334 typedef struct xfs_dir2_data_hdr {
335 	xfs_uint32_t		magic;		/* XFS_DIR2_DATA_MAGIC */
336 						/* or XFS_DIR2_BLOCK_MAGIC */
337 	xfs_dir2_data_free_t	bestfree[XFS_DIR2_DATA_FD_COUNT];
338 } xfs_dir2_data_hdr_t;
339 
340 /*
341  * Active entry in a data block.  Aligned to 8 bytes.
342  * Tag appears as the last 2 bytes.
343  */
344 typedef struct xfs_dir2_data_entry {
345 	xfs_ino_t		inumber;	/* inode number */
346 	xfs_uint8_t		namelen;	/* name length */
347 	xfs_uint8_t		name[1];	/* name bytes, no null */
348 						/* variable offset */
349 	xfs_dir2_data_off_t	tag;		/* starting offset of us */
350 } xfs_dir2_data_entry_t;
351 
352 /*
353  * Unused entry in a data block.  Aligned to 8 bytes.
354  * Tag appears as the last 2 bytes.
355  */
356 typedef struct xfs_dir2_data_unused {
357 	xfs_uint16_t		freetag;	/* XFS_DIR2_DATA_FREE_TAG */
358 	xfs_dir2_data_off_t	length;		/* total free length */
359 						/* variable offset */
360 	xfs_dir2_data_off_t	tag;		/* starting offset of us */
361 } xfs_dir2_data_unused_t;
362 
363 typedef union {
364 	xfs_dir2_data_entry_t	entry;
365 	xfs_dir2_data_unused_t	unused;
366 } xfs_dir2_data_union_t;
367 
368 
369 /* those are from xfs_dir2_leaf.h */
370 /*
371  * Directory version 2, leaf block structures.
372  */
373 
374 /*
375  * Leaf block header.
376  */
377 typedef struct xfs_dir2_leaf_hdr {
378 	xfs_da_blkinfo_t	info;		/* header for da routines */
379 	xfs_uint16_t		count;		/* count of entries */
380 	xfs_uint16_t		stale;		/* count of stale entries */
381 } xfs_dir2_leaf_hdr_t;
382 
383 
384 /* those are from xfs_dir2_block.h */
385 /*
386  * xfs_dir2_block.h
387  * Directory version 2, single block format structures
388  */
389 
390 /*
391  * The single block format is as follows:
392  * xfs_dir2_data_hdr_t structure
393  * xfs_dir2_data_entry_t and xfs_dir2_data_unused_t structures
394  * xfs_dir2_leaf_entry_t structures
395  * xfs_dir2_block_tail_t structure
396  */
397 
398 #define	XFS_DIR2_BLOCK_MAGIC	0x58443242	/* XD2B: for one block dirs */
399 
400 typedef struct xfs_dir2_block_tail {
401 	xfs_uint32_t	count;			/* count of leaf entries */
402 	xfs_uint32_t	stale;			/* count of stale lf entries */
403 } xfs_dir2_block_tail_t;
404 
405 
406 /* those are from xfs_dir2_sf.h */
407 
408 /*
409  * Directory layout when stored internal to an inode.
410  *
411  * Small directories are packed as tightly as possible so as to
412  * fit into the literal area of the inode.
413  */
414 
415 /*
416  * Inode number stored as 8 8-bit values.
417  */
418 typedef	struct { xfs_uint8_t i[8]; } xfs_dir2_ino8_t;
419 
420 /*
421  * Inode number stored as 4 8-bit values.
422  * Works a lot of the time, when all the inode numbers in a directory
423  * fit in 32 bits.
424  */
425 typedef struct { xfs_uint8_t i[4]; } xfs_dir2_ino4_t;
426 
427 typedef union {
428 	xfs_dir2_ino8_t	i8;
429 	xfs_dir2_ino4_t	i4;
430 } xfs_dir2_inou_t;
431 
432 /*
433  * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
434  * Only need 16 bits, this is the byte offset into the single block form.
435  */
436 typedef struct { xfs_uint8_t i[2]; } xfs_dir2_sf_off_t;
437 
438 /*
439  * The parent directory has a dedicated field, and the self-pointer must
440  * be calculated on the fly.
441  *
442  * Entries are packed toward the top as tightly as possible.  The header
443  * and the elements must be bcopy()'d out into a work area to get correct
444  * alignment for the inode number fields.
445  */
446 typedef struct xfs_dir2_sf_hdr {
447 	xfs_uint8_t		count;		/* count of entries */
448 	xfs_uint8_t		i8count;	/* count of 8-byte inode #s */
449 	xfs_dir2_inou_t		parent;		/* parent dir inode number */
450 } xfs_dir2_sf_hdr_t;
451 
452 typedef struct xfs_dir2_sf_entry {
453 	xfs_uint8_t		namelen;	/* actual name length */
454 	xfs_dir2_sf_off_t	offset;		/* saved offset */
455 	xfs_uint8_t		name[1];	/* name, variable size */
456 	xfs_dir2_inou_t		inumber;	/* inode number, var. offset */
457 } xfs_dir2_sf_entry_t;
458 
459 typedef struct xfs_dir2_sf {
460 	xfs_dir2_sf_hdr_t	hdr;		/* shortform header */
461 	xfs_dir2_sf_entry_t	list[1];	/* shortform entries */
462 } xfs_dir2_sf_t;
463 
464 /* those are from xfs_dinode.h */
465 
466 #define	XFS_DINODE_VERSION_1	1
467 #define	XFS_DINODE_VERSION_2	2
468 #define	XFS_DINODE_MAGIC	0x494e	/* 'IN' */
469 
470 /*
471  * Disk inode structure.
472  * This is just the header; the inode is expanded to fill a variable size
473  * with the last field expanding.  It is split into the core and "other"
474  * because we only need the core part in the in-core inode.
475  */
476 typedef struct xfs_timestamp {
477 	xfs_int32_t	t_sec;		/* timestamp seconds */
478 	xfs_int32_t	t_nsec;		/* timestamp nanoseconds */
479 } xfs_timestamp_t;
480 
481 /*
482  * Note: Coordinate changes to this structure with the XFS_DI_* #defines
483  * below and the offsets table in xfs_ialloc_log_di().
484  */
485 typedef struct xfs_dinode_core
486 {
487 	xfs_uint16_t	di_magic;	/* inode magic # = XFS_DINODE_MAGIC */
488 	xfs_uint16_t	di_mode;	/* mode and type of file */
489 	xfs_int8_t	di_version;	/* inode version */
490 	xfs_int8_t	di_format;	/* format of di_c data */
491 	xfs_uint16_t	di_onlink;	/* old number of links to file */
492 	xfs_uint32_t	di_uid;		/* owner's user id */
493 	xfs_uint32_t	di_gid;		/* owner's group id */
494 	xfs_uint32_t	di_nlink;	/* number of links to file */
495 	xfs_uint16_t	di_projid;	/* owner's project id */
496 	xfs_uint8_t	di_pad[10];	/* unused, zeroed space */
497 	xfs_timestamp_t	di_atime;	/* time last accessed */
498 	xfs_timestamp_t	di_mtime;	/* time last modified */
499 	xfs_timestamp_t	di_ctime;	/* time created/inode modified */
500 	xfs_fsize_t	di_size;	/* number of bytes in file */
501 	xfs_drfsbno_t	di_nblocks;	/* # of direct & btree blocks used */
502 	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
503 	xfs_extnum_t	di_nextents;	/* number of extents in data fork */
504 	xfs_aextnum_t	di_anextents;	/* number of extents in attribute fork*/
505 	xfs_uint8_t	di_forkoff;	/* attr fork offs, <<3 for 64b align */
506 	xfs_int8_t	di_aformat;	/* format of attr fork's data */
507 	xfs_uint32_t	di_dmevmask;	/* DMIG event mask */
508 	xfs_uint16_t	di_dmstate;	/* DMIG state info */
509 	xfs_uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
510 	xfs_uint32_t	di_gen;		/* generation number */
511 } xfs_dinode_core_t;
512 
513 typedef struct xfs_dinode
514 {
515 	xfs_dinode_core_t	di_core;
516 	xfs_agino_t		di_next_unlinked;/* agi unlinked list ptr */
517 	union {
518 		xfs_bmdr_block_t di_bmbt;	/* btree root block */
519 		xfs_bmbt_rec_32_t di_bmx[1];	/* extent list */
520 		xfs_dir2_sf_t	di_dir2sf;	/* shortform directory v2 */
521 		char		di_c[1];	/* local contents */
522 	} di_u;
523 } xfs_dinode_t;
524 
525 /*
526  * Values for di_format
527  */
528 typedef enum xfs_dinode_fmt
529 {
530 	XFS_DINODE_FMT_DEV,		/* CHR, BLK: di_dev */
531 	XFS_DINODE_FMT_LOCAL,		/* DIR, REG: di_c */
532 					/* LNK: di_symlink */
533 	XFS_DINODE_FMT_EXTENTS,		/* DIR, REG, LNK: di_bmx */
534 	XFS_DINODE_FMT_BTREE,		/* DIR, REG, LNK: di_bmbt */
535 	XFS_DINODE_FMT_UUID 		/* MNT: di_uuid */
536 } xfs_dinode_fmt_t;
537 
538 /*
539  * File types (mode field)
540  */
541 #define	IFMT		0170000		/* type of file */
542 #define	IFDIR		0040000		/* directory */
543 #define	IFREG		0100000		/* regular */
544 #define	IFLNK		0120000		/* symbolic link */
545