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4850 mario79 1
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2013-2022. All rights reserved. ;;
7736 dunkaist 4
;;  Distributed under terms of the GNU General Public License   ;;
4850 mario79 5
;;                                                              ;;
6
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7
 
8
$Revision: 9889 $
9
 
7736 dunkaist 10
; file types from stat.h
11
S_IFMT      = 0170000o  ; These bits determine file type
12
S_IFDIR     = 0040000o  ; Directory
13
S_IFCHR     = 0020000o  ; Character device
14
S_IFBLK     = 0060000o  ; Block device
15
S_IFREG     = 0100000o  ; Regular file
16
S_IFIFO     = 0010000o  ; FIFO
17
S_IFLNK     = 0120000o  ; Symbolic link
18
S_IFSOCK    = 0140000o  ; Socket
4850 mario79 19
 
3913 dunkaist 20
; XFS null constant: empty fields must be all ones, not zeros!
21
XFS_NULL                = -1
22
 
23
XFS_SECT_SB             = 0
24
 
25
; signatures of file system structures
26
XFS_AGF_MAGIC           = 'XAGF'
27
XFS_DINODE_MAGIC        = 'IN'
28
XFS_BMAP_MAGIC          = 'BMAP'
7736 dunkaist 29
XFS_DA_NODE_MAGIC       = 0xbefe
30
XFS_DIR2_LEAF1_MAGIC    = 0xf1d2
31
XFS_DIR2_LEAFN_MAGIC    = 0xffd2
3913 dunkaist 32
XFS_DIR2_BLOCK_MAGIC    = 'XD2B'
33
XFS_DIR2_DATA_MAGIC     = 'XD2D'
34
 
7736 dunkaist 35
XFS_BMAP3_MAGIC         = 'BMA3'
36
XFS_DA3_NODE_MAGIC      = 0xbe3e        ; non-leaf blocks
37
XFS_DIR3_LEAF1_MAGIC    = 0xf13d        ; v3 dir single blks
38
XFS_DIR3_LEAFN_MAGIC    = 0xff3d        ; v3 dir multi blks
39
XFS_DIR3_BLOCK_MAGIC    = 'XDB3'        ; single block dirs
40
XFS_DIR3_DATA_MAGIC     = 'XDD3'        ; multiblock dirs
3913 dunkaist 41
 
7736 dunkaist 42
XFS_SB_MAGIC               = 'XFSB'
43
XFS_SB_VERSION_NUMBITS     = 0x000f
44
XFS_SB_VERSION_ALLFBITS    = 0xfff0
45
XFS_SB_VERSION_REALFBITS   = 0x0ff0
46
XFS_SB_VERSION_ATTRBIT     = 0x0010
47
XFS_SB_VERSION_NLINKBIT    = 0x0020
48
XFS_SB_VERSION_QUOTABIT    = 0x0040
49
XFS_SB_VERSION_ALIGNBIT    = 0x0080
50
XFS_SB_VERSION_DALIGNBIT   = 0x0100
51
XFS_SB_VERSION_SHAREDBIT   = 0x0200
52
XFS_SB_VERSION_LOGV2BIT    = 0x0400
53
XFS_SB_VERSION_SECTORBIT   = 0x0800
54
XFS_SB_VERSION_EXTFLGBIT   = 0x1000
55
XFS_SB_VERSION_DIRV2BIT    = 0x2000
56
XFS_SB_VERSION_BORGBIT     = 0x4000     ; ASCII only case-insensitive
57
XFS_SB_VERSION_MOREBITSBIT = 0x8000
58
 
59
XFS_SB_VERSION_SUPPORTED = XFS_SB_VERSION_NUMBITS     OR \
60
                           XFS_SB_VERSION_ATTRBIT     OR \
61
                           XFS_SB_VERSION_NLINKBIT    OR \
62
                           XFS_SB_VERSION_QUOTABIT    OR \
63
                           XFS_SB_VERSION_ALIGNBIT    OR \
64
                           XFS_SB_VERSION_LOGV2BIT    OR \
65
                           XFS_SB_VERSION_SECTORBIT   OR \
66
                           XFS_SB_VERSION_EXTFLGBIT   OR \
67
                           XFS_SB_VERSION_DIRV2BIT    OR \
68
                           XFS_SB_VERSION_MOREBITSBIT
69
 
70
XFS_SB_VERSION2_RESERVED1BIT   = 0x00000001
71
XFS_SB_VERSION2_LAZYSBCOUNTBIT = 0x00000002     ; Superblk counters
72
XFS_SB_VERSION2_RESERVED4BIT   = 0x00000004
73
XFS_SB_VERSION2_ATTR2BIT       = 0x00000008     ; Inline attr rework
74
XFS_SB_VERSION2_PARENTBIT      = 0x00000010     ; parent pointers in xattr
75
XFS_SB_VERSION2_PROJID32BIT    = 0x00000080     ; 32 bit project id
76
XFS_SB_VERSION2_CRCBIT         = 0x00000100     ; metadata CRCs
77
XFS_SB_VERSION2_FTYPE          = 0x00000200     ; inode type in dir
78
 
79
XFS_SB_VERSION2_SUPPORTED = XFS_SB_VERSION2_LAZYSBCOUNTBIT OR \
80
                            XFS_SB_VERSION2_ATTR2BIT       OR \
81
                            XFS_SB_VERSION2_PARENTBIT      OR \
82
                            XFS_SB_VERSION2_PROJID32BIT    OR \
83
                            XFS_SB_VERSION2_CRCBIT         OR \
84
                            XFS_SB_VERSION2_FTYPE
85
 
9889 dunkaist 86
XFS_SB_FEAT_INCOMPAT_FTYPE       = 0x01 ; filetype in dirent
87
XFS_SB_FEAT_INCOMPAT_SPINODES    = 0x02 ; sparse inode chunks
88
XFS_SB_FEAT_INCOMPAT_META_UUID   = 0x04 ; metadata UUID
89
XFS_SB_FEAT_INCOMPAT_BIGTIME     = 0x08 ; large timestamps
90
XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR = 0x10 ; e.g. for upgrade to nrext64
91
XFS_SB_FEAT_INCOMPAT_NREXT64     = 0x20 ; 64bit extent counters
92
XFS_SB_FEAT_INCOMPAT_SUPPORTED   = XFS_SB_FEAT_INCOMPAT_FTYPE    OR \
93
                                   XFS_SB_FEAT_INCOMPAT_SPINODES OR \
94
                                   XFS_SB_FEAT_INCOMPAT_META_UUID OR \
95
                                   XFS_SB_FEAT_INCOMPAT_BIGTIME OR \
96
                                   XFS_SB_FEAT_INCOMPAT_NREXT64
7736 dunkaist 97
 
3913 dunkaist 98
; bitfield lengths for packed extent
99
; MSB to LSB / left to right
100
BMBT_EXNTFLAG_BITLEN    =  1
101
BMBT_STARTOFF_BITLEN    = 54
102
BMBT_STARTBLOCK_BITLEN  = 52
103
BMBT_BLOCKCOUNT_BITLEN  = 21
104
 
7736 dunkaist 105
XFS_DIR2_DATA_ALIGN_LOG = 3
106
XFS_DIR2_DATA_ALIGN     = 1 SHL XFS_DIR2_DATA_ALIGN_LOG
3913 dunkaist 107
XFS_DIR2_SPACE_SIZE     = (1 SHL (32 + XFS_DIR2_DATA_ALIGN_LOG))
7736 dunkaist 108
XFS_DIR2_DATA_OFFSET    = 0*XFS_DIR2_SPACE_SIZE
109
XFS_DIR2_LEAF_OFFSET    = 1*XFS_DIR2_SPACE_SIZE
110
XFS_DIR2_FREE_OFFSET    = 2*XFS_DIR2_SPACE_SIZE
3913 dunkaist 111
 
112
; data section magic constants for directories (xfs_dir2_data.h)
113
XFS_DIR2_DATA_FD_COUNT  = 3
114
 
115
; valid inode formats
116
; enum xfs_dinode_fmt (xfs_dinode.h)
7736 dunkaist 117
XFS_DINODE_FMT_DEV      = 0
118
XFS_DINODE_FMT_LOCAL    = 1
119
XFS_DINODE_FMT_EXTENTS  = 2
120
XFS_DINODE_FMT_BTREE    = 3
121
XFS_DINODE_FMT_UUID     = 4
3913 dunkaist 122
 
123
; size of the unlinked inode hash table in the agi
124
XFS_AGI_UNLINKED_BUCKETS = 64
125
 
126
; possible extent states
127
; enum xfs_exntst_t (xfs_bmap_btree.h)
128
XFS_EXT_NORM            = 0
129
XFS_EXT_UNWRITTEN       = 1
130
XFS_EXT_DMAPI_OFFLINE   = 2
131
XFS_EXT_INVALID         = 3
132
 
133
; values for inode core flags / di_flags (xfs_dinode.h)
134
XFS_DIFLAG_REALTIME_BIT     =  0        ; file's blocks come from rt area
135
XFS_DIFLAG_PREALLOC_BIT     =  1        ; file space has been preallocated
136
XFS_DIFLAG_NEWRTBM_BIT      =  2        ; for rtbitmap inode, new format
137
XFS_DIFLAG_NODUMP_BIT       =  7        ; do not dump
138
XFS_DIFLAG_REALTIME         = (1 SHL XFS_DIFLAG_REALTIME_BIT)
139
XFS_DIFLAG_PREALLOC         = (1 SHL XFS_DIFLAG_PREALLOC_BIT)
140
XFS_DIFLAG_NEWRTBM          = (1 SHL XFS_DIFLAG_NEWRTBM_BIT)
141
XFS_DIFLAG_NODUMP           = (1 SHL XFS_DIFLAG_NODUMP_BIT)
142
 
143
; superblock _ondisk_ structure (xfs_sb.h)
144
; this is _not_ the partition structure
145
; for XFS partition structure see XFS below
146
struct xfs_sb
7736 dunkaist 147
        sb_magicnum              dd ?   ; signature, must be XFS_SB_MAGIC
148
        sb_blocksize             dd ?   ; block is the minimal file system unit, in bytes
149
        sb_dblocks               DQ ?   ; number of data blocks
150
        sb_rblocks               DQ ?   ; number of realtime blocks
151
        sb_rextents              DQ ?   ; number of realtime extents
152
        sb_uuid                  rb 16  ; file system unique identifier
153
        sb_logstart              DQ ?   ; starting block of log (for internal journal)
154
        sb_rootino               DQ ?   ; root inode number
155
        sb_rbmino                DQ ?   ; bitmap inode for realtime extents
156
        sb_rsumino               DQ ?   ; summary inode for rt bitmap
157
        sb_rextsize              dd ?   ; realtime extent size, blocks
158
        sb_agblocks              dd ?   ; size of an allocation group (the last one may be smaller!)
159
        sb_agcount               dd ?   ; number of allocation groups
160
        sb_rbmblocks             dd ?   ; number of rt bitmap blocks
161
        sb_logblocks             dd ?   ; number of log blocks
162
        sb_versionnum            dw ?   ; header version
163
        sb_sectsize              dw ?   ; volume sector size in bytes
164
        sb_inodesize             dw ?   ; inode size, bytes
165
        sb_inopblock             dw ?   ; inodes per block
166
        sb_fname                 rb 12  ; inodes per block (aka label)
167
        sb_blocklog              db ?   ; log2 of sb_blocksize
168
        sb_sectlog               db ?   ; log2 of sb_blocksize
169
        sb_inodelog              db ?   ; log2 of sb_inodesize
170
        sb_inopblog              db ?   ; log2 of sb_inopblock
171
        sb_agblklog              db ?   ; log2 of sb_agblocks (rounded up!)
172
        sb_rextslog              db ?   ; log2 of sb_rextents
173
        sb_inprogress            db ?   ; mkfs is in progress, don't mount
174
        sb_imax_pct              db ?   ; max % of fs for inode space
3913 dunkaist 175
        ; statistics
7736 dunkaist 176
        sb_icount                DQ ?   ; allocated inodes
177
        sb_ifree                 DQ ?   ; free inodes
178
        sb_fdblocks              DQ ?   ; free data blocks
179
        sb_frextents             DQ ?   ; free realtime extents
3913 dunkaist 180
 
7736 dunkaist 181
        sb_uquotino              DQ ?   ; user quota inode
182
        sb_gquotino              DQ ?   ; group quota inode
183
        sb_qflags                dw ?   ; quota flags
184
        sb_flags                 db ?   ; misc. flags
185
        sb_shared_vn             db ?   ; shared version number
186
        sb_inoalignmt            dd ?   ; inode chunk alignment, fsblocks
187
        sb_unit                  dd ?   ; stripe or raid unit
188
        sb_width                 dd ?   ; stripe or raid width
189
        sb_dirblklog             db ?   ; log2 of dir block size (fsbs)
190
        sb_logsectlog            db ?   ; log2 of the log sector size
191
        sb_logsectsize           dw ?   ; sector size for the log, bytes
192
        sb_logsunit              dd ?   ; stripe unit size for the log
193
        sb_features2             dd ?   ; additional feature bits
194
        sb_bad_features2         dd ?
195
        sb_features_compat       dd ?
196
        sb_features_ro_compat    dd ?
197
        sb_features_incompat     dd ?
198
        sb_features_log_incompat dd ?
199
        sb_crc                   dd ?   ; superblock crc
200
        sb_spino_align           dd ?   ; sparse inode chunk alignment
201
        sb_pquotino              DQ ?   ; project quota inode
202
        sb_lsn                   DQ ?   ; last write sequence
203
        sb_meta_uuid             rb 16  ; metadata file system unique id
3913 dunkaist 204
ends
205
 
206
; inode core structure: basic information about file
207
struct xfs_dinode_core
7736 dunkaist 208
        di_magic         dw ?           ; inode magic = XFS_DINODE_MAGIC
209
        di_mode          dw ?           ; mode and type of file
210
        di_version       db ?           ; inode version
211
        di_format        db ?           ; format of di_c data
212
        di_onlink        dw ?           ; old number of links to file
213
        di_uid           dd ?           ; owner's user id
214
        di_gid           dd ?           ; owner's group id
215
        di_nlink         dd ?           ; number of links to file
9889 dunkaist 216
        di_projid        dd ?           ; owner's project id
217
        di_big_nextents  DQ ?           ; iff NREXT64 is set
9888 dunkaist 218
        di_atime         DQ             ; time last accessed
219
        di_mtime         DQ               ; time last modified
220
        di_ctime         DQ             ; time created/inode modified
7736 dunkaist 221
        di_size          DQ ?           ; number of bytes in file
222
        di_nblocks       DQ ?           ; number of direct & btree blocks used
223
        di_extsize       dd ?           ; basic/minimum extent size for file
9889 dunkaist 224
        union
225
            struct
226
                di_nextents      dd ?   ; number of extents in data fork
227
                di_anextents     dw ?   ; number of extents in attribute fork
228
            ends
229
            struct
230
                di_big_anextents dd ?   ; attr extent counter is 32bit for NREXT64
231
                di_nrext64_pad   dw ?
232
            ends
233
        ends
7736 dunkaist 234
        di_forkoff       db ?           ; attr fork offs, <<3 for 64b align
235
        di_aformat       db ?           ; format of attr fork's data
236
        di_dmevmask      dd ?           ; DMIG event mask
237
        di_dmstate       dw ?           ; DMIG state info
238
        di_flags         dw ?           ; random flags, XFS_DIFLAG_...
239
        di_gen           dd ?           ; generation number
240
        di_next_unlinked dd ?           ; unlinked but still used inode (if any, XFS_NULL otherwise)
3913 dunkaist 241
ends
242
 
7736 dunkaist 243
struct xfs_dinode3_core xfs_dinode_core
244
        di_crc           dd ?           ; CRC of the inode
245
        di_changecount   DQ ?           ; number of attribute changes
246
        di_lsn           DQ ?           ; flush sequence
247
        di_flags2        DQ ?           ; more random flags
248
        di_cowextsize    dd ?           ; basic cow extent size for file
249
        di_pad2          rb 12          ; more padding for future expansion
3913 dunkaist 250
 
7736 dunkaist 251
        ; fields only written to during inode creation
9888 dunkaist 252
        di_crtime        DQ             ; time created
7736 dunkaist 253
        di_ino           DQ ?           ; inode number
254
        di_uuid          rb 16          ; UUID of the filesystem
255
ends
256
 
257
 
3913 dunkaist 258
struct xfs_dir2_sf_hdr
7736 dunkaist 259
        count           db ?
260
        i8count         db ?
261
        parent          DQ ?            ; parent inode number, 4 or 8 bytes
3913 dunkaist 262
ends
263
 
264
struct xfs_dir2_sf_entry
265
        namelen         db ?            ; actual name length (ASCII)
266
        offset          rb 2            ; saved offset
267
        name            db ?            ; name, variable size
7736 dunkaist 268
        inumber         DQ ?            ; 4 or 8 bytes
3913 dunkaist 269
ends
270
 
7736 dunkaist 271
struct xfs_dir2_sf
272
        hdr     xfs_dir2_sf_hdr
273
        entries xfs_dir2_sf_entry
274
ends
3913 dunkaist 275
 
276
; active entry in a data block
277
; aligned to 8 bytes
278
; tag appears as the last 2 bytes
279
struct xfs_dir2_data_entry
7736 dunkaist 280
        inumber         DQ ?
281
        namelen         db ?
282
        name            db ?            ; name bytes array without terminator
283
;       tag             dw ?            ; starting offset of the entry
3913 dunkaist 284
ends
285
 
286
; unused entry in a data block
287
struct xfs_dir2_data_unused
7736 dunkaist 288
        freetag         dw ?            ; XFS_DIR2_DATA_FREE_TAG aka XFS_NULL
3913 dunkaist 289
        length          dw ?            ; total free length
7736 dunkaist 290
;        tag             dw ?           ; starting offset of the entry
3913 dunkaist 291
ends
292
 
293
; generic data entry
294
struct xfs_dir2_data_union
295
  union
296
        xentry          xfs_dir2_data_entry
297
        unused          xfs_dir2_data_unused
298
  ends
299
ends
300
 
301
; describe a free area in the data block
302
; the freespace will be formatted as a xfs_dir2_data_unused_t
303
struct xfs_dir2_data_free
304
        offset          dw ?            ; start of freespace
305
        length          dw ?            ; length of freespace
306
ends
307
 
308
; header for the data blocks
309
; always at the beginning of a directory-sized block
310
; the code knows that XFS_DIR2_DATA_FD_COUNT is 3
311
struct xfs_dir2_data_hdr
7736 dunkaist 312
        magic           dd ?            ; XFS_DIR2_DATA_MAGIC or XFS_DIR2_BLOCK_MAGIC
3913 dunkaist 313
        bestfree        xfs_dir2_data_free
314
        bestfree2       xfs_dir2_data_free
315
        bestfree3       xfs_dir2_data_free
316
ends
317
 
7736 dunkaist 318
struct xfs_dir3_data_hdr xfs_dir2_data_hdr
319
        magic3  dd ?
320
        crc     dd ?
321
        blkno   DQ ?
322
        lsn     DQ ?
323
        uuid    rb 16
324
        owner   DQ ?
325
ends
3913 dunkaist 326
 
327
; leaf block entry
328
struct xfs_dir2_leaf_entry
329
        hashval         dd ?            ; hash value of name
330
        address         dd ?            ; address of data entry
331
ends
332
 
333
; the tail of directory block
334
struct xfs_dir2_block_tail
335
        count           dd ?            ; count of leaf entries
336
        stale           dd ?            ; count of stale leaf entries
337
ends
338
 
339
; generic single-block structure, for xfs_db
340
struct xfs_dir2_block
7736 dunkaist 341
        hdr             xfs_dir2_data_hdr       ; magic XFS_DIR2_DATA_MAGIC
3913 dunkaist 342
        u               xfs_dir2_data_union
343
;        leaf            xfs_dir2_leaf_entry
344
;        tail            xfs_dir2_block_tail
345
ends
346
 
347
struct xfs_da_blkinfo
348
        forw            dd ?            ; previous block in list
349
        back            dd ?            ; following block in list
350
        magic           dw ?            ; validity check on block
351
        pad             dw ?            ; unused
352
ends
353
 
354
struct xfs_dir2_leaf_hdr
7736 dunkaist 355
        info            xfs_da_blkinfo
356
        count           dw ?
357
        stale           dw ?
3913 dunkaist 358
ends
359
 
7736 dunkaist 360
struct xfs_da3_blkinfo xfs_da_blkinfo
361
        crc   dd ?      ; CRC of block
362
        blkno DQ ?      ; first block of the buffer
363
        lsn   DQ ?      ; sequence number of last write
364
        uuid  rb 16     ; filesystem we belong to
365
        owner DQ ?      ; inode that owns the block
366
ends
3913 dunkaist 367
 
7736 dunkaist 368
struct xfs_dir3_leaf_hdr
369
        info            xfs_da3_blkinfo
370
        count           dw ?
371
        stale           dw ?
372
        pad             dd ?
3913 dunkaist 373
ends
374
 
375
; bests and tail are at the end of the block for single-leaf only
376
; (magic = XFS_DIR2_LEAF1_MAGIC not XFS_DIR2_LEAFN_MAGIC)
377
struct xfs_dir2_leaf
7736 dunkaist 378
        hdr             xfs_dir2_leaf_hdr
379
        ents            xfs_dir2_leaf_entry
380
;       bests           dw ?
381
;       tail            xfs_dir2_leaf_tail
3913 dunkaist 382
ends
383
 
7736 dunkaist 384
struct xfs_dir3_leaf
385
        hdr             xfs_dir3_leaf_hdr
386
        ents            xfs_dir2_leaf_entry
387
;       bests
388
;       tail
389
ends
3913 dunkaist 390
 
391
struct xfs_dir2_free_hdr
392
        magic           dd ?    ; XFS_DIR2_FREE_MAGIC
393
        firstdb         dd ?    ; db of first entry
394
        nvalid          dd ?    ; count of valid entries
395
        nused           dd ?    ; count of used entries
396
ends
397
 
398
struct xfs_da_node_hdr
399
        info            xfs_da_blkinfo
400
        count           dw ?
401
        level           dw ?
402
ends
403
 
404
struct xfs_da_node_entry
405
        hashval         dd ?            ; hash value for this descendant
406
        before          dd ?            ; Btree block before this key
407
ends
408
 
409
struct xfs_da_intnode
410
        hdr             xfs_da_node_hdr
411
        btree           xfs_da_node_entry
412
ends
413
 
7736 dunkaist 414
struct xfs_da3_node_hdr
415
        info            xfs_da3_blkinfo
416
        count           dw ?
417
        level           dw ?
418
        pad             dd ?
419
ends
3913 dunkaist 420
 
7736 dunkaist 421
struct xfs_da3_intnode
422
        hdr             xfs_da3_node_hdr
423
        btree           xfs_da_node_entry
424
ends
425
 
3913 dunkaist 426
; packet extent
427
struct xfs_bmbt_rec
7736 dunkaist 428
        l0              DQ ?
429
        l1              DQ ?
3913 dunkaist 430
ends
431
 
432
; unpacked extent
433
struct xfs_bmbt_irec
7736 dunkaist 434
        br_startoff     DQ ?
435
        br_startblock   DQ ?
436
        br_blockcount   dd ?
437
        br_state        dd ?
3913 dunkaist 438
ends
439
 
7736 dunkaist 440
struct xfs_dir2_bmx
441
        bmx     xfs_bmbt_rec
442
ends
3913 dunkaist 443
 
7736 dunkaist 444
; bmap root header
3913 dunkaist 445
struct xfs_bmdr_block
446
        bb_level        dw ?            ; 0 is a leaf
447
        bb_numrecs      dw ?            ; current number of data records
448
ends
449
 
450
; key structure for non-leaf levels of the tree
451
struct xfs_bmbt_key
7736 dunkaist 452
        br_startoff     DQ ?            ; starting file offset
3913 dunkaist 453
ends
454
 
7736 dunkaist 455
struct xfs_bmdr_ptr DQ
456
ends
3913 dunkaist 457
 
7736 dunkaist 458
struct xfs_bmbt_ptr DQ
459
ends
3913 dunkaist 460
 
461
; long form header: bmap btrees
462
; xfs_btree_lblock is xfs_bmbt_block (xfs_btree.h)
463
struct xfs_bmbt_block
464
        bb_magic        dd ?            ; magic number for block type
465
        bb_level        dw ?            ; 0 is a leaf
466
        bb_numrecs      dw ?            ; current number of data records
7736 dunkaist 467
        bb_leftsib      DQ ?            ; left sibling block or NULLDFSBNO
468
        bb_rightsib     DQ ?            ; right sibling block or NULLDFSBNO
3913 dunkaist 469
ends
470
 
7736 dunkaist 471
struct xfs_bmbt3_block xfs_bmbt_block
472
        bb_blkno        DQ ?
473
        bb_lsn          DQ ?
474
        bb_uuid         rb 16
475
        bb_owner        DQ ?
476
        bb_crc          dd ?
477
        bb_pad          dd ?
478
ends
3913 dunkaist 479
 
480
struct xfs_inode
481
        di_core                 xfs_dinode_core ; main info, aka core
482
ends
483
 
484
; internal data for every XFS partition
485
; this _is_ XFS partition structure
7736 dunkaist 486
; most fields are unpacked or bswap'ed values of the superblock, see xfs_sb structure above
3913 dunkaist 487
struct XFS PARTITION
488
        Lock                    MUTEX ?         ; access mutex
7736 dunkaist 489
        sectsize                dd ?
3913 dunkaist 490
        blocksize               dd ?
491
        dirblocksize            dd ?
7736 dunkaist 492
        inodesize               dd ?
493
        rootino                 DQ ?
3913 dunkaist 494
        versionnum              dd ?
7736 dunkaist 495
        version                 dd ?
3913 dunkaist 496
        features2               dd ?
497
        inopblock               dd ?
7736 dunkaist 498
        blkpdirblk              dd ?
3913 dunkaist 499
        blocklog                dd ?
500
        sectlog                 dd ?
501
        inodelog                dd ?
502
        inopblog                dd ?
503
        agblklog                dd ?
7736 dunkaist 504
        sectpblog               dd ?
505
        dirblklog               dd ?    ; in fsblocks
3913 dunkaist 506
        sectpblock              dd ?
507
        agblocks                dd ?
7736 dunkaist 508
        dir2_leaf_offset_blocks DQ ?
509
        dir2_free_offset_blocks DQ ?
510
        agblockmask             DQ ?
511
        inode_core_size         dd ?
512
        features_incompat       dd ?
513
        ftype_size              dd ?
514
        dir_block_magic         dd ?
515
        dir_data_magic          dd ?
516
        dir_leaf1_magic         dw ?
517
        dir_leafn_magic         dw ?
518
        da_node_magic           dw ?
519
        bmap_magic              dd ?
520
        bmbt_block_size         dd ?
521
        dir_block_size          dd ?
522
        dir_data_size           dd ?
523
        dir_leaf1_size          dd ?
524
        dir_leafn_size          dd ?
525
        da_node_size            dd ?
526
        da_blkinfo_size         dd ?
9888 dunkaist 527
        conv_time_to_kos_epoch  dd ?
9889 dunkaist 528
        nextents_offset         dd ?
3913 dunkaist 529
        ; helpers, temporary vars, etc
7736 dunkaist 530
        ; should go to file descriptor and local vars?
531
        cur_block               dd ?
532
        cur_block_data          dd ?
533
        cur_inode               dd ?
534
        cur_sect                dd ?
535
        cur_dirblock            dd ?
536
        tmp_inode               dd ?
3913 dunkaist 537
        extent                  xfs_bmbt_irec
538
        bytes_to_read           dd ?
539
        bytes_read              dd ?
7736 dunkaist 540
        bytes_left_in_file      DQ ?
541
        file_offset             DQ ?
542
        file_buffer             dd ?
3913 dunkaist 543
        entries_read            dd ?
7736 dunkaist 544
        requested_cnt           dd ?
545
        dir_sf_self_done        dd ?
546
        dir_sf_parent_done      dd ?
547
        entries_left_in_dir     dd ?
548
        entries_to_skip         dd ?
3913 dunkaist 549
        max_dirblockaddr        dd ?
550
        cur_inode_save          dd ?
7736 dunkaist 551
        shortform_inodelen      dd ?
552
        bdfe_nameenc            dd ?
553
        bdfe_len                dd ?
554
        bdfe_process            dd ?
555
        inode_self              DQ ?
556
        bdfe_buf                dd ?
3913 dunkaist 557
        eof                     dd ?
7736 dunkaist 558
        offset_begin            DQ ?
559
        offset_end              DQ ?
3913 dunkaist 560
ends
7736 dunkaist 561
 
562
struct f70s0arg
563
        sf       dd ?
564
        offset   DQ ?
565
        count    dd ?
566
        buf      dd ?
567
        zero     db ?
568
        path     dd ?
569
ends
570
 
571
struct f70s1arg
572
        sf        dd ?
573
        start_idx dd ?
574
        encoding  dd ?
575
        count     dd ?
576
        buf       dd ?
577
        zero      db ?
578
        path      dd ?
579
ends
580
 
581
struct f70s5arg
582
        sf     dd ?
583
               dd ?
584
        xflags dd ?     ; name flags is already used
585
               dd ?
586
        buf    dd ?
587
        zero   db ?
588
        path   dd ?
589
ends
590
 
591
struct bdfe_hdr
592
        version   dd ?
593
        read_cnt  dd ?
594
        total_cnt dd ?
595
        zeroed    rd 5
596
ends
597
 
598
struct bdfe
599
        attr     dd ?
600
        nameenc  dd ?
601
        ctime    dd ?
602
        cdate    dd ?
603
        atime    dd ?
604
        adate    dd ?
605
        mtime    dd ?
606
        mdate    dd ?
607
        size     DQ ?
608
        name     db ?
609
ends