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2288 clevermous 1
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2
;;                                                              ;;
6080 pathoswith 3
;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;;
2288 clevermous 4
;; Distributed under terms of the GNU General Public License    ;;
5
;;                                                              ;;
6
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7
 
8
$Revision: 6426 $
9
 
5954 pathoswith 10
; NTFS driver
11
 
12
; Basic concepts:
13
; File is a FileRecord in the $MFT.
14
; $MFT is a file, that consists of FileRecords and starts with FileRecord of itself.
15
; FileRecord (FILE) consists of a header and attributes.
16
; Attribute consists of a header and a body.
17
; Attribute's body can be inside (resident) or outside of FileRecord.
18
; File's data is a body of $Data (80h) attribute.
19
; FileRecords is a data of the $MFT file.
20
; Directory is a file, that consists of index nodes.
21
; Resident index node is always located in a body of $IndexRoot (90h) attribute.
22
; Body of $IndexAllocation (A0h) attribute is always non resident
23
;  and consists of IndexRecords.
24
; IndexRecord (INDX) consists of a header and an index node.
25
; Index node consists of a header and indexes.
26
; Index consists of a header and a copy of indexed attribute's body.
27
; Directories index $Filename (30h) attribute of all existing files.
28
; $IndexRoot and $IndexAllocation attributes of a directory has a name — $I30.
29
 
30
; Offsets:
31
    ; record header
6273 pathoswith 32
magic = 0
5954 pathoswith 33
updateSequenceOffset = 4
34
updateSequenceSize = 6
6273 pathoswith 35
    ; FileRecord header
5954 pathoswith 36
reuseCounter = 16
37
hardLinkCounter = 12h
38
attributeOffset = 14h
39
recordFlags = 16h
40
recordRealSize = 18h
41
recordAllocatedSize = 1ch
5994 pathoswith 42
baseRecordReference = 20h       ; for auxiliary records
43
baseRecordReuse = 26h
5954 pathoswith 44
newAttributeID = 28h
45
    ; attribute header
46
attributeType = 0
47
sizeWithHeader = 4
48
nonResidentFlag = 8
49
nameLength = 9
50
nameOffset = 10
6019 pathoswith 51
attributeFlags = 12
5954 pathoswith 52
attributeID = 14
6080 pathoswith 53
    ; resident attribute header
54
sizeWithoutHeader = 10h
6273 pathoswith 55
attributeOffset = 14h
6019 pathoswith 56
indexedFlag = 16h
5954 pathoswith 57
    ; non resident attribute header
6080 pathoswith 58
firstVCN = 10h
5954 pathoswith 59
lastVCN = 18h
60
dataRunsOffset = 20h
61
attributeAllocatedSize = 28h
62
attributeRealSize = 30h
63
initialDataSize = 38h
64
    ; $IndexRoot
6273 pathoswith 65
indexedAttributesType = 0
5954 pathoswith 66
collationRule = 4
67
indexRecordSize = 8
6340 pathoswith 68
indexRecordSizeClus = 12        ; in sectors if less than one cluster
6273 pathoswith 69
rootNode = 16
70
    ; IndexRecord header
71
recordVCN = 16
72
recordNode = 18h
5954 pathoswith 73
    ; node header
74
indexOffset = 0
75
nodeRealSize = 4
76
nodeAllocatedSize = 8
6273 pathoswith 77
nonLeafFlag = 12
5954 pathoswith 78
    ; $Filename index
79
fileRecordReference = 0
80
fileReferenceReuse = 6
81
indexAllocatedSize = 8
82
indexRawSize = 10
83
indexFlags = 12
84
directoryRecordReference = 16
85
directoryReferenceReuse = 16h
6297 pathoswith 86
fileCreated = 18h
87
fileModified = 20h
88
recordModified = 28h
89
fileAccessed = 30h
5954 pathoswith 90
fileAllocatedSize = 38h
91
fileRealSize = 40h
92
fileFlags = 48h
93
fileNameLength = 50h
6297 pathoswith 94
namespace = 51h
95
fileName = 52h
5954 pathoswith 96
 
3742 clevermous 97
struct NTFS PARTITION
6273 pathoswith 98
Lock            MUTEX   ?   ; Currently operations with one partition
5954 pathoswith 99
; can not be executed in parallel since the legacy code is not ready.
6273 pathoswith 100
sectors_per_cluster dd  ?
101
mft_cluster         dd  ?   ; location
102
mftmirr_cluster     dd  ?   ; location
103
frs_size            dd  ?   ; in bytes
104
frs_buffer          dd  ?   ; MFT fileRecord buffer
105
mft_retrieval_end   dd  ?
6405 pathoswith 106
mftSize             dd  ?   ; in sectors
6273 pathoswith 107
cur_index_size      dd  ?   ; in sectors
108
cur_index_buf       dd  ?   ; index node buffer
6340 pathoswith 109
secondIndexBuffer   dd  ?
6273 pathoswith 110
BitmapBuffer        dd  ?
111
BitmapTotalSize     dd  ?   ; bytes reserved
112
BitmapSize          dd  ?   ; bytes readen
113
BitmapLocation      dd  ?   ; starting sector
114
BitmapStart         dd  ?   ; first byte after area, reserved for MFT
115
mftBitmapBuffer     dd  ?   ; one cluster
116
mftBitmapSize       dd  ?   ; bytes readen
117
mftBitmapLocation   dd  ?   ; starting sector
2288 clevermous 118
 
6405 pathoswith 119
attr_size           dq  ?
120
attr_offs           dd  ?
121
attr_list           dd  ?
122
attr_iBaseRecord    dd  ?
6273 pathoswith 123
cur_attr            dd  ?   ; attribute type
124
cur_iRecord         dd  ?   ; number of fileRecord in MFT
125
cur_offs            dd  ?   ; attribute VCN in sectors
126
cur_size            dd  ?   ; max sectors to read
127
cur_buf             dd  ?
128
cur_read            dd  ?   ; bytes readen
6405 pathoswith 129
cur_tail            dd  ?
130
cur_subnode_size    dd  ?
6273 pathoswith 131
LastRead            dd  ?   ; last readen block of sectors
6408 pathoswith 132
mftLastRead         dd  ?
6340 pathoswith 133
rootLastRead        dd  ?
134
nodeLastRead        dd  ?
135
indexRoot           dd  ?
6405 pathoswith 136
indexPointer        dd  ?
6340 pathoswith 137
newRecord           dd  ?
6273 pathoswith 138
fileDataStart       dd  ?   ; starting cluster
139
fileDataSize        dd  ?   ; in clusters
6292 pathoswith 140
fileDataBuffer      dd  ?
6273 pathoswith 141
fileRealSize        dd  ?   ; in bytes
142
fragmentCount       db  ?
143
bCanContinue        db  ?
144
bFolder             db  ?
145
bWriteAttr          db  ?   ; Warning: Don't forget to turn off!!!
3742 clevermous 146
 
6405 pathoswith 147
align 256
148
mft_retrieval       rb  768
149
attrlist_buf        rb  1024
150
attrlist_mft_buf    rb  1024
151
bitmap_buf          rb  1024
3742 clevermous 152
ends
153
 
5954 pathoswith 154
; NTFS external functions
155
;   in:
156
; ebx -> parameter structure of sysfunc 70
157
; ebp -> NTFS structure
158
; [esi]+[esp+4] = name
159
;   out:
160
; eax, ebx = return values for sysfunc 70
3742 clevermous 161
iglobal
162
align 4
163
ntfs_user_functions:
164
        dd      ntfs_free
165
        dd      (ntfs_user_functions_end - ntfs_user_functions - 4) / 4
5954 pathoswith 166
        dd      ntfs_ReadFile
3742 clevermous 167
        dd      ntfs_ReadFolder
5954 pathoswith 168
        dd      ntfs_CreateFile
5994 pathoswith 169
        dd      ntfs_WriteFile
3742 clevermous 170
        dd      ntfs_SetFileEnd
171
        dd      ntfs_GetFileInfo
172
        dd      ntfs_SetFileInfo
173
        dd      0
174
        dd      ntfs_Delete
175
        dd      ntfs_CreateFolder
176
ntfs_user_functions_end:
177
endg
178
 
2288 clevermous 179
ntfs_test_bootsec:
5954 pathoswith 180
; in: ebx -> buffer, edx = size of partition
181
; out: CF=1 -> invalid
2288 clevermous 182
; 1. Name=='NTFS    '
183
        cmp     dword [ebx+3], 'NTFS'
184
        jnz     .no
185
        cmp     dword [ebx+7], '    '
186
        jnz     .no
187
; 2. Number of bytes per sector is the same as for physical device
188
; (that is, 0x200 for hard disk)
189
        cmp     word [ebx+11], 0x200
190
        jnz     .no
191
; 3. Number of sectors per cluster must be power of 2
192
        movzx   eax, byte [ebx+13]
193
        dec     eax
194
        js      .no
195
        test    al, [ebx+13]
196
        jnz     .no
197
; 4. FAT parameters must be zero
198
        cmp     word [ebx+14], 0
199
        jnz     .no
200
        cmp     dword [ebx+16], 0
201
        jnz     .no
202
        cmp     byte [ebx+20], 0
203
        jnz     .no
204
        cmp     word [ebx+22], 0
205
        jnz     .no
206
        cmp     dword [ebx+32], 0
207
        jnz     .no
208
; 5. Number of sectors <= partition size
209
        cmp     dword [ebx+0x2C], 0
210
        ja      .no
211
        cmp     [ebx+0x28], edx
212
        ja      .no
213
; 6. $MFT and $MFTMirr clusters must be within partition
214
        cmp     dword [ebx+0x34], 0
215
        ja      .no
216
        push    edx
217
        movzx   eax, byte [ebx+13]
218
        mul     dword [ebx+0x30]
219
        test    edx, edx
220
        pop     edx
221
        jnz     .no
222
        cmp     eax, edx
223
        ja      .no
224
        cmp     dword [ebx+0x3C], 0
225
        ja      .no
226
        push    edx
227
        movzx   eax, byte [ebx+13]
228
        mul     dword [ebx+0x38]
229
        test    edx, edx
230
        pop     edx
231
        jnz     .no
232
        cmp     eax, edx
233
        ja      .no
5954 pathoswith 234
; 7. Clusters per FRS must be either power of 2 or between -31 and -9
2288 clevermous 235
        movsx   eax, byte [ebx+0x40]
236
        cmp     al, -31
237
        jl      .no
238
        cmp     al, -9
239
        jle     @f
240
        dec     eax
241
        js      .no
242
        test    [ebx+0x40], al
243
        jnz     .no
5954 pathoswith 244
@@:         ; 8. Same for clusters per IndexAllocationBuffer
2288 clevermous 245
        movsx   eax, byte [ebx+0x44]
246
        cmp     al, -31
247
        jl      .no
248
        cmp     al, -9
249
        jle     @f
250
        dec     eax
251
        js      .no
252
        test    [ebx+0x44], al
253
        jnz     .no
5954 pathoswith 254
@@:         ; OK, this is correct NTFS bootsector
2288 clevermous 255
        clc
256
        ret
5954 pathoswith 257
.no:        ; No, this bootsector isn't NTFS
2288 clevermous 258
        stc
259
        ret
260
 
5954 pathoswith 261
ntfs_create_partition:
5089 clevermous 262
        cmp     dword [esi+DISK.MediaInfo.SectorSize], 512
263
        jnz     .nope
3742 clevermous 264
        mov     edx, dword [ebp+PARTITION.Length]
265
        cmp     dword [esp+4], 0
266
        jz      .boot_read_ok
267
        add     ebx, 512
268
        lea     eax, [edx-1]
269
        call    fs_read32_sys
270
        test    eax, eax
271
        jnz     @f
272
        call    ntfs_test_bootsec
273
        jnc     .ntfs_setup
274
@@:
275
        mov     eax, edx
276
        shr     eax, 1
277
        call    fs_read32_sys
278
        test    eax, eax
5954 pathoswith 279
        jnz     .nope
3742 clevermous 280
.boot_read_ok:
281
        call    ntfs_test_bootsec
282
        jnc     .ntfs_setup
283
.nope:
284
        xor     eax, eax
285
        jmp     .exit
6297 pathoswith 286
 
6405 pathoswith 287
.ntfs_setup:    ; By given bootsector, initialize some NTFS variables
288
        stdcall kernel_alloc, 1000h
3742 clevermous 289
        test    eax, eax
290
        jz      .exit
291
        mov     ecx, dword [ebp+PARTITION.FirstSector]
292
        mov     dword [eax+NTFS.FirstSector], ecx
293
        mov     ecx, dword [ebp+PARTITION.FirstSector+4]
294
        mov     dword [eax+NTFS.FirstSector+4], ecx
295
        mov     ecx, [ebp+PARTITION.Disk]
296
        mov     [eax+NTFS.Disk], ecx
297
        mov     [eax+NTFS.FSUserFunctions], ntfs_user_functions
6273 pathoswith 298
        mov     [eax+NTFS.bWriteAttr], 0
5954 pathoswith 299
 
3742 clevermous 300
        push    ebx ebp esi
301
        mov     ebp, eax
302
        lea     ecx, [ebp+NTFS.Lock]
303
        call    mutex_init
2288 clevermous 304
        movzx   eax, byte [ebx+13]
3742 clevermous 305
        mov     [ebp+NTFS.sectors_per_cluster], eax
2288 clevermous 306
        mov     eax, [ebx+0x28]
3742 clevermous 307
        mov     dword [ebp+NTFS.Length], eax
308
        and     dword [ebp+NTFS.Length+4], 0
2288 clevermous 309
        mov     eax, [ebx+0x30]
3742 clevermous 310
        mov     [ebp+NTFS.mft_cluster], eax
2288 clevermous 311
        mov     eax, [ebx+0x38]
3742 clevermous 312
        mov     [ebp+NTFS.mftmirr_cluster], eax
2288 clevermous 313
        movsx   eax, byte [ebx+0x40]
314
        test    eax, eax
5954 pathoswith 315
        js      @f
3742 clevermous 316
        mul     [ebp+NTFS.sectors_per_cluster]
2288 clevermous 317
        shl     eax, 9
5954 pathoswith 318
        jmp     .1
6297 pathoswith 319
 
5954 pathoswith 320
@@:
2288 clevermous 321
        neg     eax
322
        mov     ecx, eax
323
        mov     eax, 1
324
        shl     eax, cl
5954 pathoswith 325
.1:
3742 clevermous 326
        mov     [ebp+NTFS.frs_size], eax
5954 pathoswith 327
        stdcall kernel_alloc, eax
2288 clevermous 328
        test    eax, eax
3742 clevermous 329
        jz      .fail_free
330
        mov     [ebp+NTFS.frs_buffer], eax
2288 clevermous 331
; read $MFT disposition
3742 clevermous 332
        mov     eax, [ebp+NTFS.mft_cluster]
333
        mul     [ebp+NTFS.sectors_per_cluster]
6405 pathoswith 334
        mov     ecx, [ebp+NTFS.frs_size]
335
        shr     ecx, 9
336
        mov     ebx, [ebp+NTFS.frs_buffer]
337
        call    fs_read64_sys
3742 clevermous 338
        test    eax, eax
2288 clevermous 339
        jnz     .usemirr
340
        cmp     dword [ebx], 'FILE'
341
        jnz     .usemirr
342
        call    ntfs_restore_usa_frs
343
        jnc     .mftok
344
.usemirr:
3742 clevermous 345
        mov     eax, [ebp+NTFS.mftmirr_cluster]
346
        mul     [ebp+NTFS.sectors_per_cluster]
6405 pathoswith 347
        mov     ecx, [ebp+NTFS.frs_size]
348
        shr     ecx, 9
349
        mov     ebx, [ebp+NTFS.frs_buffer]
350
        call    fs_read64_sys
3742 clevermous 351
        test    eax, eax
5954 pathoswith 352
        jnz     .fail_free_frs
2288 clevermous 353
        cmp     dword [ebx], 'FILE'
5954 pathoswith 354
        jnz     .fail_free_frs
2288 clevermous 355
        call    ntfs_restore_usa_frs
5954 pathoswith 356
        jc      .fail_free_frs
6405 pathoswith 357
.mftok:     ; prepare $MFT retrieval information
358
; search for unnamed non-resident $DATA attribute
359
        movzx   eax, word [ebx+attributeOffset]
2288 clevermous 360
        add     eax, ebx
361
.scandata:
362
        cmp     dword [eax], -1
6405 pathoswith 363
        jz      .fail_free_frs
2288 clevermous 364
        cmp     dword [eax], 0x80
365
        jnz     @f
6405 pathoswith 366
        cmp     byte [eax+nameLength], 0
2288 clevermous 367
        jz      .founddata
368
@@:
6405 pathoswith 369
        add     eax, [eax+sizeWithHeader]
2288 clevermous 370
        jmp     .scandata
6297 pathoswith 371
 
2288 clevermous 372
.founddata:
6405 pathoswith 373
        cmp     byte [eax+nonResidentFlag], 0
374
        jz      .fail_free_frs
375
        movzx   esi, word [eax+dataRunsOffset]
2288 clevermous 376
        add     esi, eax
6405 pathoswith 377
        mov     edx, [eax+attributeAllocatedSize+4]
378
        mov     eax, [eax+attributeAllocatedSize]
379
        shrd    eax, edx, 9
380
        mov     [ebp+NTFS.mftSize], eax
2288 clevermous 381
        sub     esp, 10h
6405 pathoswith 382
        lea     ecx, [ebp+NTFS.mft_retrieval]
383
        xor     edx, edx
384
.scanmcb:   ; load descriptions of fragments
2288 clevermous 385
        call    ntfs_decode_mcb_entry
386
        jnc     .scanmcbend
6405 pathoswith 387
        mov     eax, [esp]      ; block length
388
        mov     [ecx], eax
389
        add     edx, [esp+8]    ; block addr
390
        mov     [ecx+4], edx
391
        add     ecx, 8
2288 clevermous 392
        jmp     .scanmcb
6297 pathoswith 393
 
2288 clevermous 394
.scanmcbend:
395
        add     esp, 10h
6405 pathoswith 396
        lea     eax, [ebp+NTFS.attrlist_buf]
397
        cmp     eax, ecx
398
        jc      @f
399
        mov     eax, ecx
400
@@:
401
        mov     [ebp+NTFS.mft_retrieval_end], eax
402
; allocate index buffers
6340 pathoswith 403
        stdcall kernel_alloc, 2000h
2288 clevermous 404
        test    eax, eax
6405 pathoswith 405
        jz      .fail_free_frs
3742 clevermous 406
        mov     [ebp+NTFS.cur_index_buf], eax
6340 pathoswith 407
        add     eax, 1000h
408
        mov     [ebp+NTFS.secondIndexBuffer], eax
409
        mov     [ebp+NTFS.cur_index_size], 8
5954 pathoswith 410
; reserve adress space for bitmap buffer and load some part of bitmap
411
        mov     eax, dword [ebp+NTFS.Length]
412
        xor     edx, edx
413
        div     [ebp+NTFS.sectors_per_cluster]
414
        shr     eax, 3
415
        mov     [ebp+NTFS.BitmapTotalSize], eax
416
        add     eax, 7FFFh
417
        and     eax, not 7FFFh
418
        push    eax
419
        call    alloc_kernel_space
420
        test    eax, eax
421
        jz      .failFreeIndex
422
        mov     [ebp+NTFS.BitmapBuffer], eax
6273 pathoswith 423
        mov     [ebp+NTFS.cur_buf], eax
5954 pathoswith 424
        mov     eax, [ebp+NTFS.BitmapTotalSize]
425
        add     eax, [ebp+NTFS.mft_cluster]
426
        shr     eax, 3+2        ; reserve 1/8 of partition for $MFT
427
        shl     eax, 2
428
        mov     [ebp+NTFS.BitmapStart], eax
429
        shr     eax, 15
430
        inc     eax
431
        shl     eax, 3
432
        push    eax
433
        push    eax
434
        shl     eax, 3
6273 pathoswith 435
        mov     [ebp+NTFS.cur_size], eax
5954 pathoswith 436
        call    alloc_pages
437
        test    eax, eax
438
        pop     ecx
439
        jz      .failFreeBitmap
440
        add     eax, 3
441
        mov     ebx, [ebp+NTFS.BitmapBuffer]
442
        call    commit_pages
6273 pathoswith 443
        mov     [ebp+NTFS.cur_iRecord], 6
444
        mov     [ebp+NTFS.cur_attr], 0x80
445
        mov     [ebp+NTFS.cur_offs], 0
5954 pathoswith 446
        call    ntfs_read_attr
447
        jc      .failFreeBitmap
6273 pathoswith 448
        mov     eax, [ebp+NTFS.cur_read]
5954 pathoswith 449
        mov     [ebp+NTFS.BitmapSize], eax
6273 pathoswith 450
        mov     eax, [ebp+NTFS.LastRead]
5954 pathoswith 451
        mov     [ebp+NTFS.BitmapLocation], eax
452
; read MFT $BITMAP attribute
453
        mov     eax, [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 454
        mov     [ebp+NTFS.cur_size], eax
5954 pathoswith 455
        shl     eax, 9
456
        stdcall kernel_alloc, eax
457
        test    eax, eax
458
        jz      .failFreeBitmap
459
        mov     [ebp+NTFS.mftBitmapBuffer], eax
6273 pathoswith 460
        mov     [ebp+NTFS.cur_buf], eax
461
        mov     [ebp+NTFS.cur_iRecord], 0
462
        mov     [ebp+NTFS.cur_attr], 0xB0
463
        mov     [ebp+NTFS.cur_offs], 0
5954 pathoswith 464
        call    ntfs_read_attr
6273 pathoswith 465
        mov     eax, [ebp+NTFS.cur_read]
5954 pathoswith 466
        cmp     eax, 4
467
        jc      .failFreeBitmapMFT
6273 pathoswith 468
        mov     ecx, [ebp+NTFS.attr_offs]
6107 pathoswith 469
        cmp     byte [ecx+nonResidentFlag], 1
470
        jnz     .failFreeBitmapMFT
5954 pathoswith 471
        mov     [ebp+NTFS.mftBitmapSize], eax
6273 pathoswith 472
        mov     eax, [ebp+NTFS.LastRead]
5954 pathoswith 473
        mov     [ebp+NTFS.mftBitmapLocation], eax
2288 clevermous 474
 
3742 clevermous 475
        mov     eax, ebp
5954 pathoswith 476
.pop_exit:
477
        pop     esi ebp ebx
478
.exit:
479
        cmp     dword [esp+4], 0
480
        jz      @f
481
        sub     ebx, 512
482
@@:
483
        ret
484
 
485
.failFreeBitmapMFT:
6405 pathoswith 486
        stdcall kernel_free, [ebp+NTFS.mftBitmapBuffer]
5954 pathoswith 487
.failFreeBitmap:
6405 pathoswith 488
        stdcall kernel_free, [ebp+NTFS.BitmapBuffer]
5954 pathoswith 489
.failFreeIndex:
6405 pathoswith 490
        mov     eax, [ebp+NTFS.cur_index_buf]
491
        cmp     eax, [ebp+NTFS.secondIndexBuffer]
492
        jc      @f
493
        mov     eax, [ebp+NTFS.secondIndexBuffer]
494
@@:
495
        stdcall kernel_free, eax
5954 pathoswith 496
.fail_free_frs:
497
        stdcall kernel_free, [ebp+NTFS.frs_buffer]
498
.fail_free:
6405 pathoswith 499
        stdcall kernel_free, ebp
5954 pathoswith 500
        xor     eax, eax
3742 clevermous 501
        jmp     .pop_exit
2288 clevermous 502
 
5954 pathoswith 503
ntfs_free:
3742 clevermous 504
        push    ebx
5954 pathoswith 505
        mov     ebx, eax
3742 clevermous 506
        stdcall kernel_free, [ebx+NTFS.frs_buffer]
5954 pathoswith 507
        stdcall kernel_free, [ebx+NTFS.mftBitmapBuffer]
508
        stdcall kernel_free, [ebx+NTFS.BitmapBuffer]
6405 pathoswith 509
        mov     eax, [ebx+NTFS.cur_index_buf]
510
        cmp     eax, [ebx+NTFS.secondIndexBuffer]
511
        jc      @f
512
        mov     eax, [ebx+NTFS.secondIndexBuffer]
513
@@:
514
        stdcall kernel_free, eax
515
        stdcall kernel_free, ebx
3742 clevermous 516
        pop     ebx
6405 pathoswith 517
        ret
3742 clevermous 518
 
5954 pathoswith 519
ntfs_lock:
3742 clevermous 520
        lea     ecx, [ebp+NTFS.Lock]
521
        jmp     mutex_lock
522
 
5954 pathoswith 523
ntfs_unlock:
3742 clevermous 524
        lea     ecx, [ebp+NTFS.Lock]
525
        jmp     mutex_unlock
526
 
2288 clevermous 527
ntfs_read_attr:
6273 pathoswith 528
; [ebp+NTFS.bWriteAttr]=1 -> write attribute
5954 pathoswith 529
;   in:
6273 pathoswith 530
; [ebp+NTFS.cur_iRecord] = number of fileRecord
531
; [ebp+NTFS.cur_attr] = attribute type
532
; [ebp+NTFS.cur_offs] = attribute VCN in sectors
533
; [ebp+NTFS.cur_buf] -> buffer for data
534
; [ebp+NTFS.cur_size] = max sectors to read
5954 pathoswith 535
;   out:
6273 pathoswith 536
; [ebp+NTFS.cur_read] = bytes readen
5954 pathoswith 537
; CF=1 -> failed, eax = disk error code, eax=0 -> something with FS
3742 clevermous 538
        xor     eax, eax
2288 clevermous 539
        pushad
6273 pathoswith 540
        and     [ebp+NTFS.cur_read], 0
541
        cmp     [ebp+NTFS.cur_iRecord], 0
2288 clevermous 542
        jnz     .nomft
6273 pathoswith 543
        cmp     [ebp+NTFS.cur_attr], 0x80
2288 clevermous 544
        jnz     .nomft
545
; precalculated part of $Mft $DATA
6273 pathoswith 546
        mov     eax, [ebp+NTFS.cur_offs]
2288 clevermous 547
        xor     edx, edx
3742 clevermous 548
        div     [ebp+NTFS.sectors_per_cluster]
6405 pathoswith 549
        mov     ebx, edx
6418 pathoswith 550
        mov     [ebp+NTFS.fragmentCount], 0
6405 pathoswith 551
; eax = VCN, ebx = offset in sectors from beginning of cluster
552
        lea     esi, [ebp+NTFS.mft_retrieval]
553
        sub     esi, 8
2288 clevermous 554
.mftscan:
6405 pathoswith 555
        add     esi, 8
556
        cmp     esi, [ebp+NTFS.mft_retrieval_end]
557
        jz      .nomft
558
        mov     ecx, [esi+4]
2288 clevermous 559
        sub     eax, [esi]
6405 pathoswith 560
        jnc     .mftscan
2288 clevermous 561
        add     ecx, eax
562
        add     ecx, [esi]
6405 pathoswith 563
        neg     eax
564
        mul     [ebp+NTFS.sectors_per_cluster]
565
        xchg    eax, ecx
566
        mul     [ebp+NTFS.sectors_per_cluster]
567
        sub     ecx, ebx
568
        add     eax, ebx
6273 pathoswith 569
        mov     ebx, [ebp+NTFS.cur_buf]
570
        cmp     ecx, [ebp+NTFS.cur_size]
2288 clevermous 571
        jb      @f
6273 pathoswith 572
        mov     ecx, [ebp+NTFS.cur_size]
2288 clevermous 573
@@:
6405 pathoswith 574
        mov     [ebp+NTFS.LastRead], eax
575
        mov     edi, ecx
576
        call    fs_read64_sys
3742 clevermous 577
        test    eax, eax
6405 pathoswith 578
        jnz     .errret
579
        sub     [ebp+NTFS.cur_size], edi
580
        add     [ebp+NTFS.cur_offs], edi
581
        shl     edi, 9
582
        add     [ebp+NTFS.cur_read], edi
583
        add     [ebp+NTFS.cur_buf], edi
6418 pathoswith 584
        inc     [ebp+NTFS.fragmentCount]
2288 clevermous 585
        xor     eax, eax
6405 pathoswith 586
        xor     ebx, ebx
6273 pathoswith 587
        cmp     [ebp+NTFS.cur_size], eax
2288 clevermous 588
        jz      @f
589
        jmp     .mftscan
6297 pathoswith 590
 
591
.errret2_pop:
592
        xor     eax, eax
593
.errret_pop:
594
        pop     ecx
2288 clevermous 595
        pop     ecx
596
.errret:
3742 clevermous 597
        mov     [esp+28], eax
2288 clevermous 598
        stc
6297 pathoswith 599
@@:
2288 clevermous 600
        popad
601
        ret
6297 pathoswith 602
 
2288 clevermous 603
.nomft:
604
; 1. Read file record.
605
; N.B. This will do recursive call of read_attr for $MFT::$Data.
6273 pathoswith 606
        mov     eax, [ebp+NTFS.cur_iRecord]
607
        and     [ebp+NTFS.attr_list], 0
608
        or      dword [ebp+NTFS.attr_size+4], -1
609
        or      [ebp+NTFS.attr_iBaseRecord], -1
2288 clevermous 610
        call    ntfs_read_file_record
3742 clevermous 611
        jc      .errret
2288 clevermous 612
; 2. Find required attribute.
3742 clevermous 613
        mov     eax, [ebp+NTFS.frs_buffer]
6107 pathoswith 614
; a) For auxiliary records, read base record.
615
; If base record is present, base iRecord may be 0 (for $Mft),
616
; but SequenceNumber is nonzero.
6297 pathoswith 617
        cmp     word [eax+baseRecordReuse], 0
2288 clevermous 618
        jz      @f
6297 pathoswith 619
        mov     eax, [eax+baseRecordReference]
2288 clevermous 620
.beginfindattr:
621
        call    ntfs_read_file_record
3742 clevermous 622
        jc      .errret
6107 pathoswith 623
        jmp     @f
6297 pathoswith 624
 
6107 pathoswith 625
.newAttribute:
626
        pushad
6297 pathoswith 627
        and     [ebp+NTFS.cur_read], 0
2288 clevermous 628
@@:
629
; b) Scan for required attribute and for $ATTR_LIST
3742 clevermous 630
        mov     eax, [ebp+NTFS.frs_buffer]
6297 pathoswith 631
        movzx   ecx, word [eax+attributeOffset]
2288 clevermous 632
        add     eax, ecx
6273 pathoswith 633
        mov     ecx, [ebp+NTFS.cur_attr]
634
        and     [ebp+NTFS.attr_offs], 0
2288 clevermous 635
.scanattr:
636
        cmp     dword [eax], -1
637
        jz      .scandone
638
        cmp     dword [eax], ecx
639
        jz      .okattr
6273 pathoswith 640
        cmp     [ebp+NTFS.attr_iBaseRecord], -1
2288 clevermous 641
        jnz     .scancont
642
        cmp     dword [eax], 0x20       ; $ATTR_LIST
643
        jnz     .scancont
6273 pathoswith 644
        mov     [ebp+NTFS.attr_list], eax
2288 clevermous 645
        jmp     .scancont
6297 pathoswith 646
 
2288 clevermous 647
.okattr:
648
; ignore named $DATA attributes (aka NTFS streams)
649
        cmp     ecx, 0x80
650
        jnz     @f
6297 pathoswith 651
        cmp     byte [eax+nameLength], 0
2288 clevermous 652
        jnz     .scancont
653
@@:
6273 pathoswith 654
        mov     [ebp+NTFS.attr_offs], eax
2288 clevermous 655
.scancont:
6297 pathoswith 656
        add     eax, [eax+sizeWithHeader]
2288 clevermous 657
        jmp     .scanattr
6297 pathoswith 658
 
2288 clevermous 659
.continue:
660
        pushad
6273 pathoswith 661
        and     [ebp+NTFS.cur_read], 0
2288 clevermous 662
.scandone:
663
; c) Check for required offset and length
6273 pathoswith 664
        mov     ecx, [ebp+NTFS.attr_offs]
2288 clevermous 665
        jecxz   .noattr
6273 pathoswith 666
        push    [ebp+NTFS.cur_size]
667
        push    [ebp+NTFS.cur_read]
2288 clevermous 668
        call    .doreadattr
669
        pop     edx
3742 clevermous 670
        pop     ecx
6297 pathoswith 671
        jc      .ret
6273 pathoswith 672
        cmp     [ebp+NTFS.bCanContinue], 0
6297 pathoswith 673
        jz      .ret
6273 pathoswith 674
        sub     edx, [ebp+NTFS.cur_read]
2288 clevermous 675
        neg     edx
676
        shr     edx, 9
3742 clevermous 677
        sub     ecx, edx
6273 pathoswith 678
        mov     [ebp+NTFS.cur_size], ecx
6297 pathoswith 679
        jz      .ret
2288 clevermous 680
.noattr:
6273 pathoswith 681
        cmp     [ebp+NTFS.cur_attr], 0x20
2288 clevermous 682
        jz      @f
6273 pathoswith 683
        mov     ecx, [ebp+NTFS.attr_list]
2288 clevermous 684
        test    ecx, ecx
685
        jnz     .lookattr
3742 clevermous 686
        and     dword [esp+28], 0
6297 pathoswith 687
        cmp     [ebp+NTFS.attr_offs], 1     ; define CF
688
.ret:
2288 clevermous 689
        popad
690
        ret
6297 pathoswith 691
 
2288 clevermous 692
.lookattr:
693
; required attribute or required offset was not found in base record;
694
; it may be present in auxiliary records;
695
; scan $ATTR_LIST
6273 pathoswith 696
        mov     eax, [ebp+NTFS.attr_iBaseRecord]
2288 clevermous 697
        cmp     eax, -1
698
        jz      @f
699
        call    ntfs_read_file_record
3742 clevermous 700
        jc      .errret
6273 pathoswith 701
        or      [ebp+NTFS.attr_iBaseRecord], -1
2288 clevermous 702
@@:
6273 pathoswith 703
        push    [ebp+NTFS.cur_offs]
704
        push    [ebp+NTFS.cur_size]
705
        push    [ebp+NTFS.cur_read]
706
        push    [ebp+NTFS.cur_buf]
707
        push    dword [ebp+NTFS.attr_size]
708
        push    dword [ebp+NTFS.attr_size+4]
709
        or      dword [ebp+NTFS.attr_size+4], -1
710
        and     [ebp+NTFS.cur_offs], 0
711
        mov     [ebp+NTFS.cur_size], 2
712
        and     [ebp+NTFS.cur_read], 0
713
        lea     eax, [ebp+NTFS.attrlist_buf]
714
        cmp     [ebp+NTFS.cur_iRecord], 0
2288 clevermous 715
        jnz     @f
6273 pathoswith 716
        lea     eax, [ebp+NTFS.attrlist_mft_buf]
2288 clevermous 717
@@:
6273 pathoswith 718
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 719
        push    eax
720
        call    .doreadattr
721
        pop     esi
722
        mov     edx, 1
6273 pathoswith 723
        pop     dword [ebp+NTFS.attr_size+4]
724
        pop     dword [ebp+NTFS.attr_size]
725
        mov     ecx, [ebp+NTFS.cur_read]
726
        pop     [ebp+NTFS.cur_buf]
727
        pop     [ebp+NTFS.cur_read]
728
        pop     [ebp+NTFS.cur_size]
729
        pop     [ebp+NTFS.cur_offs]
2288 clevermous 730
        jc      .errret
731
        or      edi, -1
3742 clevermous 732
        lea     ecx, [ecx+esi-1Ah]
2288 clevermous 733
.scanliststart:
3742 clevermous 734
        push    ecx
6273 pathoswith 735
        mov     eax, [ebp+NTFS.cur_attr]
2288 clevermous 736
.scanlist:
3742 clevermous 737
        cmp     esi, [esp]
2288 clevermous 738
        jae     .scanlistdone
739
        cmp     eax, [esi]
740
        jz      @f
741
.scanlistcont:
742
        movzx   ecx, word [esi+4]
743
        add     esi, ecx
744
        jmp     .scanlist
6297 pathoswith 745
 
2288 clevermous 746
@@:
747
; ignore named $DATA attributes (aka NTFS streams)
748
        cmp     eax, 0x80
749
        jnz     @f
750
        cmp     byte [esi+6], 0
751
        jnz     .scanlistcont
752
@@:
753
        push    eax
754
        mov     eax, [esi+8]
755
        test    eax, eax
756
        jnz     .testf
6407 pathoswith 757
        cmp     dword [ebp+NTFS.attr_size+4], -1
2288 clevermous 758
        jnz     .testfz
759
; if attribute is in auxiliary records, its size is defined only in first
760
        mov     eax, [esi+10h]
761
        call    ntfs_read_file_record
6297 pathoswith 762
        jc      .errret_pop
3742 clevermous 763
        mov     eax, [ebp+NTFS.frs_buffer]
2288 clevermous 764
        movzx   ecx, word [eax+14h]
765
        add     eax, ecx
6273 pathoswith 766
        mov     ecx, [ebp+NTFS.cur_attr]
2288 clevermous 767
@@:
768
        cmp     dword [eax], -1
3742 clevermous 769
        jz      .errret2_pop
2288 clevermous 770
        cmp     dword [eax], ecx
771
        jz      @f
772
.l1:
773
        add     eax, [eax+4]
774
        jmp     @b
6297 pathoswith 775
 
2288 clevermous 776
@@:
777
        cmp     eax, 0x80
778
        jnz     @f
779
        cmp     byte [eax+9], 0
780
        jnz     .l1
781
@@:
782
        cmp     byte [eax+8], 0
783
        jnz     .sdnores
784
        mov     eax, [eax+10h]
6273 pathoswith 785
        mov     dword [ebp+NTFS.attr_size], eax
786
        and     dword [ebp+NTFS.attr_size+4], 0
2288 clevermous 787
        jmp     .testfz
6297 pathoswith 788
 
2288 clevermous 789
.sdnores:
790
        mov     ecx, [eax+30h]
6273 pathoswith 791
        mov     dword [ebp+NTFS.attr_size], ecx
2288 clevermous 792
        mov     ecx, [eax+34h]
6273 pathoswith 793
        mov     dword [ebp+NTFS.attr_size+4], ecx
2288 clevermous 794
.testfz:
795
        xor     eax, eax
796
.testf:
3742 clevermous 797
        imul    eax, [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 798
        cmp     eax, [ebp+NTFS.cur_offs]
2288 clevermous 799
        pop     eax
800
        ja      @f
801
        mov     edi, [esi+10h]  ; keep previous iRecord
802
        jmp     .scanlistcont
6297 pathoswith 803
 
2288 clevermous 804
@@:
3742 clevermous 805
        pop     ecx
2288 clevermous 806
.scanlistfound:
807
        cmp     edi, -1
6297 pathoswith 808
        jz      .ret
6273 pathoswith 809
        mov     eax, [ebp+NTFS.cur_iRecord]
810
        mov     [ebp+NTFS.attr_iBaseRecord], eax
2288 clevermous 811
        mov     eax, edi
812
        jmp     .beginfindattr
6297 pathoswith 813
 
2288 clevermous 814
.scanlistdone:
3742 clevermous 815
        pop     ecx
816
        sub     ecx, ebp
6273 pathoswith 817
        sub     ecx, NTFS.attrlist_buf-1Ah
818
        cmp     [ebp+NTFS.cur_iRecord], 0
2288 clevermous 819
        jnz     @f
6273 pathoswith 820
        sub     ecx, NTFS.attrlist_mft_buf-NTFS.attrlist_buf
2288 clevermous 821
@@:
3742 clevermous 822
        cmp     ecx, 0x400
2288 clevermous 823
        jnz     .scanlistfound
824
        inc     edx
825
        push    esi edi
6273 pathoswith 826
        lea     esi, [ebp+NTFS.attrlist_buf+0x200]
827
        lea     edi, [ebp+NTFS.attrlist_buf]
828
        cmp     [ebp+NTFS.cur_iRecord], 0
2288 clevermous 829
        jnz     @f
6273 pathoswith 830
        lea     esi, [ebp+NTFS.attrlist_mft_buf+0x200]
831
        lea     edi, [ebp+NTFS.attrlist_mft_buf]
2288 clevermous 832
@@:
833
        mov     ecx, 0x200/4
834
        rep movsd
835
        mov     eax, edi
836
        pop     edi esi
837
        sub     esi, 0x200
6273 pathoswith 838
        push    [ebp+NTFS.cur_offs]
839
        push    [ebp+NTFS.cur_size]
840
        push    [ebp+NTFS.cur_read]
841
        push    [ebp+NTFS.cur_buf]
842
        push    dword [ebp+NTFS.attr_size]
843
        push    dword [ebp+NTFS.attr_size+4]
844
        or      dword [ebp+NTFS.attr_size+4], -1
845
        mov     [ebp+NTFS.cur_offs], edx
846
        mov     [ebp+NTFS.cur_size], 1
847
        and     [ebp+NTFS.cur_read], 0
848
        mov     [ebp+NTFS.cur_buf], eax
849
        mov     ecx, [ebp+NTFS.attr_list]
3742 clevermous 850
        push    esi edx edi
2288 clevermous 851
        call    .doreadattr
3742 clevermous 852
        pop     edi edx esi
6273 pathoswith 853
        mov     ecx, [ebp+NTFS.cur_read]
854
        pop     dword [ebp+NTFS.attr_size+4]
855
        pop     dword [ebp+NTFS.attr_size]
856
        pop     [ebp+NTFS.cur_buf]
857
        pop     [ebp+NTFS.cur_read]
858
        pop     [ebp+NTFS.cur_size]
859
        pop     [ebp+NTFS.cur_offs]
2288 clevermous 860
        jc      .errret
6273 pathoswith 861
        lea     ecx, [ecx+ebp+NTFS.attrlist_buf+0x200-0x1A]
862
        cmp     [ebp+NTFS.cur_iRecord], 0
2288 clevermous 863
        jnz     .scanliststart
6273 pathoswith 864
        add     ecx, NTFS.attrlist_mft_buf-NTFS.attrlist_buf
2288 clevermous 865
        jmp     .scanliststart
866
 
867
.doreadattr:
6273 pathoswith 868
        mov     [ebp+NTFS.bCanContinue], 0
6297 pathoswith 869
        cmp     byte [ecx+nonResidentFlag], 0
2288 clevermous 870
        jnz     .nonresident
6297 pathoswith 871
        mov     eax, [ecx+sizeWithoutHeader]
2288 clevermous 872
        mov     esi, eax
6273 pathoswith 873
        mov     edx, [ebp+NTFS.cur_offs]
2288 clevermous 874
        shr     eax, 9
875
        cmp     eax, edx
876
        jb      .okret
877
        shl     edx, 9
878
        sub     esi, edx
6297 pathoswith 879
        movzx   eax, word [ecx+attributeOffset]
2288 clevermous 880
        add     edx, eax
881
        add     edx, ecx        ; edx -> data
6273 pathoswith 882
        mov     eax, [ebp+NTFS.cur_size]
2288 clevermous 883
        cmp     eax, (0xFFFFFFFF shr 9)+1
884
        jbe     @f
885
        mov     eax, (0xFFFFFFFF shr 9)+1
886
@@:
887
        shl     eax, 9
888
        cmp     eax, esi
889
        jbe     @f
890
        mov     eax, esi
891
@@:
892
; eax = length, edx -> data
6273 pathoswith 893
        mov     [ebp+NTFS.cur_read], eax
2288 clevermous 894
        mov     ecx, eax
895
        mov     eax, edx
6273 pathoswith 896
        mov     ebx, [ebp+NTFS.cur_buf]
2288 clevermous 897
        call    memmove
6273 pathoswith 898
        and     [ebp+NTFS.cur_size], 0      ; CF=0
2288 clevermous 899
        ret
6297 pathoswith 900
 
2288 clevermous 901
.nonresident:
902
; Not all auxiliary records contain correct FileSize info
6273 pathoswith 903
        mov     eax, dword [ebp+NTFS.attr_size]
904
        mov     edx, dword [ebp+NTFS.attr_size+4]
6407 pathoswith 905
        cmp     edx, -1
2288 clevermous 906
        jnz     @f
6297 pathoswith 907
        mov     eax, [ecx+attributeRealSize]
908
        mov     edx, [ecx+attributeRealSize+4]
6273 pathoswith 909
        mov     dword [ebp+NTFS.attr_size], eax
910
        mov     dword [ebp+NTFS.attr_size+4], edx
2288 clevermous 911
@@:
912
        add     eax, 0x1FF
913
        adc     edx, 0
914
        shrd    eax, edx, 9
6273 pathoswith 915
        sub     eax, [ebp+NTFS.cur_offs]
2288 clevermous 916
        ja      @f
917
; return with nothing read
6273 pathoswith 918
        and     [ebp+NTFS.cur_size], 0
2288 clevermous 919
.okret:
920
        clc
921
        ret
6297 pathoswith 922
 
2288 clevermous 923
@@:
924
; reduce read length
6273 pathoswith 925
        and     [ebp+NTFS.cur_tail], 0
926
        cmp     [ebp+NTFS.cur_size], eax
2288 clevermous 927
        jb      @f
6273 pathoswith 928
        mov     [ebp+NTFS.cur_size], eax
929
        mov     eax, dword [ebp+NTFS.attr_size]
2288 clevermous 930
        and     eax, 0x1FF
6273 pathoswith 931
        mov     [ebp+NTFS.cur_tail], eax
2288 clevermous 932
@@:
6273 pathoswith 933
        mov     eax, [ebp+NTFS.cur_offs]
2288 clevermous 934
        xor     edx, edx
3742 clevermous 935
        div     [ebp+NTFS.sectors_per_cluster]
6297 pathoswith 936
        sub     eax, [ecx+firstVCN]
2288 clevermous 937
        jb      .okret
6405 pathoswith 938
        mov     ebx, edx
939
; eax = starting cluster, ebx = sector in the cluster
6273 pathoswith 940
        cmp     [ebp+NTFS.cur_attr], 0x80
5994 pathoswith 941
        jnz     .sys
6273 pathoswith 942
        cmp     [ebp+NTFS.cur_iRecord], 0
5994 pathoswith 943
        jz      .sys
944
        push    fs_read64_app
6273 pathoswith 945
        cmp     [ebp+NTFS.bWriteAttr], 1
5994 pathoswith 946
        jnz     @f
947
        mov     dword[esp], fs_write64_app
948
        jmp     @f
6297 pathoswith 949
 
5994 pathoswith 950
.sys:
951
        push    fs_read64_sys
952
@@:
2288 clevermous 953
        sub     esp, 10h
6297 pathoswith 954
        movzx   esi, word [ecx+dataRunsOffset]
2288 clevermous 955
        add     esi, ecx
3742 clevermous 956
        xor     edi, edi
6273 pathoswith 957
        mov     [ebp+NTFS.fragmentCount], 0
2288 clevermous 958
.readloop:
959
        call    ntfs_decode_mcb_entry
960
        jnc     .break
3742 clevermous 961
        add     edi, [esp+8]
2288 clevermous 962
        sub     eax, [esp]
963
        jae     .readloop
6405 pathoswith 964
        mov     ecx, edi
965
        add     ecx, eax
966
        add     ecx, [esp]
967
        neg     eax
968
        mul     [ebp+NTFS.sectors_per_cluster]
969
        xchg    eax, ecx
970
        mul     [ebp+NTFS.sectors_per_cluster]
971
        sub     ecx, ebx
972
        add     eax, ebx
973
        mov     ebx, [ebp+NTFS.cur_buf]
6273 pathoswith 974
        cmp     ecx, [ebp+NTFS.cur_size]
2288 clevermous 975
        jb      @f
6273 pathoswith 976
        mov     ecx, [ebp+NTFS.cur_size]
2288 clevermous 977
@@:
6273 pathoswith 978
        mov     [ebp+NTFS.LastRead], eax
5954 pathoswith 979
        push    ecx
6405 pathoswith 980
        call    dword[esp+14h]
5954 pathoswith 981
        pop     ecx
3742 clevermous 982
        test    eax, eax
2288 clevermous 983
        jnz     .errread2
6273 pathoswith 984
        sub     [ebp+NTFS.cur_size], ecx
985
        add     [ebp+NTFS.cur_offs], ecx
5954 pathoswith 986
        shl     ecx, 9
6273 pathoswith 987
        add     [ebp+NTFS.cur_read], ecx
988
        add     [ebp+NTFS.cur_buf], ecx
989
        inc     [ebp+NTFS.fragmentCount]
2288 clevermous 990
        xor     eax, eax
6405 pathoswith 991
        xor     ebx, ebx
6273 pathoswith 992
        cmp     [ebp+NTFS.cur_size], 0
2288 clevermous 993
        jnz     .readloop
5994 pathoswith 994
        add     esp, 14h
6273 pathoswith 995
        mov     eax, [ebp+NTFS.cur_tail]
2288 clevermous 996
        test    eax, eax
997
        jz      @f
998
        sub     eax, 0x200
6273 pathoswith 999
        add     [ebp+NTFS.cur_read], eax
2288 clevermous 1000
@@:
1001
        clc
1002
        ret
6297 pathoswith 1003
 
2288 clevermous 1004
.errread2:
5994 pathoswith 1005
        add     esp, 14h
2288 clevermous 1006
        stc
1007
        ret
6297 pathoswith 1008
 
2288 clevermous 1009
.break:
5994 pathoswith 1010
        add     esp, 14h        ; CF=0
6273 pathoswith 1011
        mov     [ebp+NTFS.bCanContinue], 1
2288 clevermous 1012
        ret
1013
 
1014
ntfs_read_file_record:
5954 pathoswith 1015
; in: eax = iRecord
6080 pathoswith 1016
; out: [ebp+NTFS.frs_buffer] -> file record
5954 pathoswith 1017
; CF=1 -> failed, eax = disk error code, eax=0 -> something with FS
1018
    ; Read attr $DATA of $Mft, starting from eax*[ebp+NTFS.frs_size]
2288 clevermous 1019
        push    ecx edx
3742 clevermous 1020
        mov     ecx, [ebp+NTFS.frs_size]
2288 clevermous 1021
        mul     ecx
1022
        shrd    eax, edx, 9
1023
        shr     edx, 9
3742 clevermous 1024
        jnz     .errret
6273 pathoswith 1025
        push    [ebp+NTFS.attr_iBaseRecord]
1026
        push    [ebp+NTFS.attr_offs]
1027
        push    [ebp+NTFS.attr_list]
1028
        push    dword [ebp+NTFS.attr_size+4]
1029
        push    dword [ebp+NTFS.attr_size]
1030
        push    [ebp+NTFS.cur_iRecord]
1031
        push    [ebp+NTFS.cur_attr]
1032
        push    [ebp+NTFS.cur_offs]
1033
        push    [ebp+NTFS.cur_size]
1034
        push    [ebp+NTFS.cur_buf]
1035
        push    [ebp+NTFS.cur_read]
1036
        mov     [ebp+NTFS.cur_attr], 0x80   ; $DATA
1037
        and     [ebp+NTFS.cur_iRecord], 0   ; $Mft
1038
        mov     [ebp+NTFS.cur_offs], eax
2288 clevermous 1039
        shr     ecx, 9
6273 pathoswith 1040
        mov     [ebp+NTFS.cur_size], ecx
3742 clevermous 1041
        mov     eax, [ebp+NTFS.frs_buffer]
6273 pathoswith 1042
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 1043
        call    ntfs_read_attr
6273 pathoswith 1044
        mov     edx, [ebp+NTFS.cur_read]
1045
        pop     [ebp+NTFS.cur_read]
1046
        pop     [ebp+NTFS.cur_buf]
1047
        pop     [ebp+NTFS.cur_size]
1048
        pop     [ebp+NTFS.cur_offs]
1049
        pop     [ebp+NTFS.cur_attr]
1050
        pop     [ebp+NTFS.cur_iRecord]
1051
        pop     dword [ebp+NTFS.attr_size]
1052
        pop     dword [ebp+NTFS.attr_size+4]
1053
        pop     [ebp+NTFS.attr_list]
1054
        pop     [ebp+NTFS.attr_offs]
1055
        pop     [ebp+NTFS.attr_iBaseRecord]
3742 clevermous 1056
        jc      .ret
1057
        cmp     edx, [ebp+NTFS.frs_size]
2288 clevermous 1058
        jnz     .errret
6408 pathoswith 1059
        mov     eax, [ebp+NTFS.LastRead]
1060
        mov     [ebp+NTFS.mftLastRead], eax
3742 clevermous 1061
        mov     eax, [ebp+NTFS.frs_buffer]
2288 clevermous 1062
        cmp     dword [eax], 'FILE'
1063
        jnz     .errret
1064
        push    ebx
1065
        mov     ebx, eax
1066
        call    ntfs_restore_usa_frs
1067
        pop     ebx
3742 clevermous 1068
        jc      .errret
2288 clevermous 1069
.ret:
3742 clevermous 1070
        pop     edx ecx
2288 clevermous 1071
        ret
6297 pathoswith 1072
 
3742 clevermous 1073
.errret:
2288 clevermous 1074
        pop     edx ecx
1075
        xor     eax, eax
3742 clevermous 1076
        stc
2288 clevermous 1077
        ret
1078
 
1079
ntfs_restore_usa_frs:
3742 clevermous 1080
        mov     eax, [ebp+NTFS.frs_size]
2288 clevermous 1081
ntfs_restore_usa:
6080 pathoswith 1082
;   in:
1083
; ebx -> record
1084
; eax = size in bytes
2288 clevermous 1085
        pushad
1086
        shr     eax, 9
1087
        mov     ecx, eax
1088
        inc     eax
6297 pathoswith 1089
        cmp     [ebx+updateSequenceSize], ax
2288 clevermous 1090
        jnz     .err
6297 pathoswith 1091
        movzx   eax, word [ebx+updateSequenceOffset]
2288 clevermous 1092
        lea     esi, [eax+ebx]
1093
        lodsw
1094
        mov     edx, eax
1095
        lea     edi, [ebx+0x1FE]
1096
@@:
1097
        cmp     [edi], dx
1098
        jnz     .err
1099
        lodsw
1100
        stosw
1101
        add     edi, 0x1FE
1102
        loop    @b
1103
        popad
1104
        clc
1105
        ret
6297 pathoswith 1106
 
2288 clevermous 1107
.err:
1108
        popad
1109
        stc
1110
        ret
1111
 
1112
ntfs_decode_mcb_entry:
6019 pathoswith 1113
;   in:
6080 pathoswith 1114
; esi -> MCB entry
6019 pathoswith 1115
; esp -> buffer (16 bytes)
1116
;   out:
6080 pathoswith 1117
; esi -> next MCB entry
6019 pathoswith 1118
; esp -> data run size
1119
; esp+8 -> cluster (delta)
6080 pathoswith 1120
; CF=0 -> MCB end
2288 clevermous 1121
        push    eax ecx edi
1122
        lea     edi, [esp+16]
1123
        xor     eax, eax
1124
        lodsb
1125
        test    al, al
1126
        jz      .end
1127
        mov     ecx, eax
1128
        and     ecx, 0xF
1129
        cmp     ecx, 8
1130
        ja      .end
1131
        push    ecx
1132
        rep movsb
1133
        pop     ecx
1134
        sub     ecx, 8
1135
        neg     ecx
1136
        cmp     byte [esi-1], 80h
1137
        jae     .end
1138
        push    eax
1139
        xor     eax, eax
1140
        rep stosb
1141
        pop     ecx
1142
        shr     ecx, 4
1143
        cmp     ecx, 8
1144
        ja      .end
1145
        push    ecx
1146
        rep movsb
1147
        pop     ecx
1148
        sub     ecx, 8
1149
        neg     ecx
1150
        cmp     byte [esi-1], 80h
1151
        cmc
1152
        sbb     eax, eax
1153
        rep stosb
1154
        stc
1155
.end:
1156
        pop     edi ecx eax
1157
        ret
1158
 
1159
unichar_toupper:
1160
        push    eax
1161
        call    uni2ansi_char
1162
        cmp     al, '_'
1163
        jz      .unk
1164
        add     esp, 4
1504 diamond 1165
        call    char_toupper
1166
        jmp     ansi2uni_char
1167
.unk:
1168
        pop     eax
1169
        ret
2288 clevermous 1170
 
1171
ntfs_find_lfn:
5954 pathoswith 1172
; in: [esi]+[esp+4] = name
1173
;   out:
6405 pathoswith 1174
; [ebp+NTFS.cur_iRecord] = target fileRecord
6411 pathoswith 1175
; eax -> target index in the node
1176
; [ebp+NTFS.LastRead] = target node location
6405 pathoswith 1177
; [ebp+NTFS.indexPointer] -> index, that points the target subnode
6411 pathoswith 1178
; [ebp+NTFS.nodeLastRead] = branch node location
6405 pathoswith 1179
; [ebp+NTFS.indexRoot] -> attribute
6411 pathoswith 1180
; [ebp+NTFS.rootLastRead] = directory fileRecord location
6405 pathoswith 1181
; [ebp+NTFS.cur_size] = index record size in sectors
1182
; [ebp+NTFS.cur_subnode_size] = index record size in clusters or sectors
5994 pathoswith 1183
; CF=1 -> file not found, eax=0 -> error
6297 pathoswith 1184
        mov     [ebp+NTFS.cur_iRecord], 5   ; start from root directory
2288 clevermous 1185
.doit2:
6273 pathoswith 1186
        mov     [ebp+NTFS.cur_attr], 0x90   ; $INDEX_ROOT
1187
        and     [ebp+NTFS.cur_offs], 0
3742 clevermous 1188
        mov     eax, [ebp+NTFS.cur_index_size]
6273 pathoswith 1189
        mov     [ebp+NTFS.cur_size], eax
3742 clevermous 1190
        mov     eax, [ebp+NTFS.cur_index_buf]
6273 pathoswith 1191
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 1192
        call    ntfs_read_attr
5994 pathoswith 1193
        mov     eax, 0
6297 pathoswith 1194
        jc      .ret
6273 pathoswith 1195
        cmp     [ebp+NTFS.cur_read], 0x20
2288 clevermous 1196
        jc      .ret
6418 pathoswith 1197
        push    esi
2288 clevermous 1198
        pushad
3742 clevermous 1199
        mov     esi, [ebp+NTFS.cur_index_buf]
6340 pathoswith 1200
        mov     eax, [esi+indexRecordSize]
1201
        shr     eax, 9
1202
        cmp     [ebp+NTFS.cur_index_size], eax
6297 pathoswith 1203
        jc      .realloc
6340 pathoswith 1204
        mov     [ebp+NTFS.cur_size], eax
1205
        mov     al, [esi+indexRecordSizeClus]
1206
        mov     [ebp+NTFS.cur_subnode_size], eax
6297 pathoswith 1207
        add     esi, rootNode
1208
        mov     eax, [esi+nodeRealSize]
1209
        add     eax, rootNode
6273 pathoswith 1210
        cmp     [ebp+NTFS.cur_read], eax
6297 pathoswith 1211
        jc      .err
2288 clevermous 1212
        mov     edi, [esp+4]
6408 pathoswith 1213
        mov     eax, [ebp+NTFS.mftLastRead]
6340 pathoswith 1214
        mov     [ebp+NTFS.rootLastRead], eax
1215
        mov     eax, [ebp+NTFS.attr_offs]
1216
        mov     [ebp+NTFS.indexRoot], eax
1217
; edi -> name, esi -> current index node
2288 clevermous 1218
.scanloop:
6297 pathoswith 1219
        add     esi, [esi+indexOffset]
2288 clevermous 1220
.scanloopint:
6297 pathoswith 1221
        test    byte [esi+indexFlags], 2
2288 clevermous 1222
        jnz     .subnode
1223
        push    esi
6297 pathoswith 1224
        movzx   ecx, byte [esi+fileNameLength]
1225
        add     esi, fileName
2288 clevermous 1226
        push    edi
1227
@@:
1228
        lodsw
1229
        call    unichar_toupper
1230
        push    eax
1231
        mov     al, [edi]
1232
        inc     edi
1233
        cmp     al, '/'
1234
        jz      .slash
1235
        call    char_toupper
1236
        call    ansi2uni_char
1237
        cmp     ax, [esp]
1238
        pop     eax
1239
        loopz   @b
1240
        jz      .found
1241
        pop     edi
1242
        pop     esi
1243
        jb      .subnode
1244
.scanloopcont:
6297 pathoswith 1245
        movzx   eax, word [esi+indexAllocatedSize]
2288 clevermous 1246
        add     esi, eax
1247
        jmp     .scanloopint
6297 pathoswith 1248
 
1249
.realloc:
6340 pathoswith 1250
        mov     edi, eax
1251
        mov     eax, [esi+indexRecordSize]
1252
        shl     eax, 1
1253
        stdcall kernel_alloc, eax
6297 pathoswith 1254
        test    eax, eax
1255
        jz      .err
6405 pathoswith 1256
        mov     edx, [ebp+NTFS.cur_index_buf]
1257
        cmp     edx, [ebp+NTFS.secondIndexBuffer]
1258
        jc      @f
1259
        mov     edx, [ebp+NTFS.secondIndexBuffer]
1260
@@:
6297 pathoswith 1261
        mov     [ebp+NTFS.cur_index_buf], eax
6340 pathoswith 1262
        add     eax, [esi+indexRecordSize]
1263
        mov     [ebp+NTFS.secondIndexBuffer], eax
1264
        mov     [ebp+NTFS.cur_index_size], edi
6405 pathoswith 1265
        stdcall kernel_free, edx
6297 pathoswith 1266
        popad
6418 pathoswith 1267
        pop     eax
6297 pathoswith 1268
        jmp     .doit2
1269
 
1270
.notfound:
1271
        mov     [esp+1Ch], esi
1272
.err:
1273
        popad
1274
        stc
6418 pathoswith 1275
.ret2:
1276
        pop     esi
6297 pathoswith 1277
.ret:
1278
        ret     4
1279
 
2288 clevermous 1280
.slash:
1281
        pop     eax
1282
        pop     edi
1283
        pop     esi
1284
.subnode:
6297 pathoswith 1285
        test    byte [esi+indexFlags], 1
2288 clevermous 1286
        jz      .notfound
6411 pathoswith 1287
        mov     eax, [ebp+NTFS.LastRead]
1288
        mov     [ebp+NTFS.nodeLastRead], eax
1289
        mov     [ebp+NTFS.indexPointer], esi
6297 pathoswith 1290
        movzx   eax, word [esi+indexAllocatedSize]
2288 clevermous 1291
        mov     eax, [esi+eax-8]
6340 pathoswith 1292
        mov     edx, [ebp+NTFS.cur_size]
1293
        push    edx
1294
        cmp     edx, [ebp+NTFS.cur_subnode_size]
1295
        jz      @f
1296
        mul     [ebp+NTFS.sectors_per_cluster]
1297
@@:
1298
        mov     esi, [ebp+NTFS.cur_index_buf]
1299
        xchg    [ebp+NTFS.secondIndexBuffer], esi
1300
        mov     [ebp+NTFS.cur_index_buf], esi
1301
        mov     [ebp+NTFS.cur_buf], esi
1302
        mov     [ebp+NTFS.cur_attr], 0xA0   ; $INDEX_ALLOCATION
6273 pathoswith 1303
        mov     [ebp+NTFS.cur_offs], eax
6297 pathoswith 1304
        call    ntfs_read_attr.newAttribute
6340 pathoswith 1305
        pop     eax
1306
        mov     [ebp+NTFS.cur_size], eax
2288 clevermous 1307
        shl     eax, 9
6273 pathoswith 1308
        cmp     [ebp+NTFS.cur_read], eax
5954 pathoswith 1309
        jnz     .err
2288 clevermous 1310
        cmp     dword [esi], 'INDX'
5954 pathoswith 1311
        jnz     .err
2288 clevermous 1312
        mov     ebx, esi
1313
        call    ntfs_restore_usa
5954 pathoswith 1314
        jc      .err
6297 pathoswith 1315
        add     esi, recordNode
2288 clevermous 1316
        jmp     .scanloop
6297 pathoswith 1317
 
2288 clevermous 1318
.found:
1319
        cmp     byte [edi], 0
6418 pathoswith 1320
        jz      @f
2288 clevermous 1321
        cmp     byte [edi], '/'
6418 pathoswith 1322
        jz      @f
2288 clevermous 1323
        pop     edi
1324
        pop     esi
1325
        jmp     .scanloopcont
6297 pathoswith 1326
 
6418 pathoswith 1327
@@:
2288 clevermous 1328
        pop     esi
1329
        pop     esi
1330
        mov     eax, [esi]
6273 pathoswith 1331
        mov     [ebp+NTFS.cur_iRecord], eax
2288 clevermous 1332
        mov     [esp+1Ch], esi
1333
        mov     [esp+4], edi
1334
        popad
1335
        inc     esi
1336
        cmp     byte [esi-1], 0
6418 pathoswith 1337
        jnz     @f
1338
        cmp     dword [esp+8], 0
1339
        jz      .ret2
1340
        mov     esi, [esp+8]
1341
        mov     dword [esp+8], 0
1342
@@:
1343
        pop     eax
2288 clevermous 1344
        jmp     .doit2
1345
 
1346
;----------------------------------------------------------------
5954 pathoswith 1347
ntfs_ReadFile:
2288 clevermous 1348
        cmp     byte [esi], 0
1349
        jnz     @f
1350
        or      ebx, -1
3598 clevermous 1351
        movi    eax, ERROR_ACCESS_DENIED
2288 clevermous 1352
        ret
6297 pathoswith 1353
 
2288 clevermous 1354
@@:
3742 clevermous 1355
        call    ntfs_lock
1356
        stdcall ntfs_find_lfn, [esp+4]
2288 clevermous 1357
        jnc     .found
3742 clevermous 1358
        call    ntfs_unlock
2288 clevermous 1359
        or      ebx, -1
3598 clevermous 1360
        movi    eax, ERROR_FILE_NOT_FOUND
2288 clevermous 1361
        ret
6297 pathoswith 1362
 
2288 clevermous 1363
.found:
6273 pathoswith 1364
        mov     [ebp+NTFS.cur_attr], 0x80   ; $DATA
1365
        and     [ebp+NTFS.cur_offs], 0
1366
        and     [ebp+NTFS.cur_size], 0
2288 clevermous 1367
        call    ntfs_read_attr
1368
        jnc     @f
3742 clevermous 1369
        call    ntfs_unlock
2288 clevermous 1370
        or      ebx, -1
3598 clevermous 1371
        movi    eax, ERROR_ACCESS_DENIED
2288 clevermous 1372
        ret
6297 pathoswith 1373
 
2288 clevermous 1374
@@:
1375
        pushad
1376
        and     dword [esp+10h], 0
1377
        xor     eax, eax
3742 clevermous 1378
        cmp     dword [ebx+8], 0x200
2288 clevermous 1379
        jb      @f
1380
.eof0:
1381
        popad
1382
        xor     ebx, ebx
1383
.eof:
3742 clevermous 1384
        call    ntfs_unlock
6297 pathoswith 1385
        movi    eax, ERROR_END_OF_FILE
2288 clevermous 1386
        ret
6297 pathoswith 1387
 
2288 clevermous 1388
@@:
3742 clevermous 1389
        mov     ecx, [ebx+12]
1390
        mov     edx, [ebx+16]
1391
        mov     eax, [ebx+4]
2288 clevermous 1392
        test    eax, 0x1FF
1393
        jz      .alignedstart
1394
        push    edx
3742 clevermous 1395
        mov     edx, [ebx+8]
2288 clevermous 1396
        shrd    eax, edx, 9
1400 turbanoff 1397
        pop     edx
6273 pathoswith 1398
        mov     [ebp+NTFS.cur_offs], eax
1399
        mov     [ebp+NTFS.cur_size], 1
1400
        lea     eax, [ebp+NTFS.bitmap_buf]
1401
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 1402
        call    ntfs_read_attr.continue
3742 clevermous 1403
        mov     eax, [ebx+4]
2288 clevermous 1404
        and     eax, 0x1FF
6273 pathoswith 1405
        lea     esi, [ebp+NTFS.bitmap_buf+eax]
1406
        sub     eax, [ebp+NTFS.cur_read]
2288 clevermous 1407
        jae     .eof0
1408
        neg     eax
1409
        push    ecx
1410
        cmp     ecx, eax
1411
        jb      @f
1412
        mov     ecx, eax
1413
@@:
1414
        mov     [esp+10h+4], ecx
1415
        mov     edi, edx
1416
        rep movsb
1417
        mov     edx, edi
1418
        pop     ecx
1419
        sub     ecx, [esp+10h]
1420
        jnz     @f
1421
.retok:
1422
        popad
3742 clevermous 1423
        call    ntfs_unlock
2288 clevermous 1424
        xor     eax, eax
1400 turbanoff 1425
        ret
6297 pathoswith 1426
 
2288 clevermous 1427
@@:
6273 pathoswith 1428
        cmp     [ebp+NTFS.cur_read], 0x200
2288 clevermous 1429
        jz      .alignedstart
1430
.eof_ebx:
1431
        popad
1432
        jmp     .eof
6297 pathoswith 1433
 
2288 clevermous 1434
.alignedstart:
3742 clevermous 1435
        mov     eax, [ebx+4]
2288 clevermous 1436
        push    edx
3742 clevermous 1437
        mov     edx, [ebx+8]
2288 clevermous 1438
        add     eax, 511
1439
        adc     edx, 0
1440
        shrd    eax, edx, 9
1441
        pop     edx
6273 pathoswith 1442
        mov     [ebp+NTFS.cur_offs], eax
1443
        mov     [ebp+NTFS.cur_buf], edx
2288 clevermous 1444
        mov     eax, ecx
1445
        shr     eax, 9
6273 pathoswith 1446
        mov     [ebp+NTFS.cur_size], eax
1447
        add     eax, [ebp+NTFS.cur_offs]
2288 clevermous 1448
        push    eax
1449
        call    ntfs_read_attr.continue
6273 pathoswith 1450
        pop     [ebp+NTFS.cur_offs]
1451
        mov     eax, [ebp+NTFS.cur_read]
2288 clevermous 1452
        add     [esp+10h], eax
1453
        mov     eax, ecx
1454
        and     eax, not 0x1FF
6273 pathoswith 1455
        cmp     [ebp+NTFS.cur_read], eax
2288 clevermous 1456
        jnz     .eof_ebx
1457
        and     ecx, 0x1FF
1458
        jz      .retok
6273 pathoswith 1459
        add     edx, [ebp+NTFS.cur_read]
1460
        mov     [ebp+NTFS.cur_size], 1
1461
        lea     eax, [ebp+NTFS.bitmap_buf]
1462
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 1463
        call    ntfs_read_attr.continue
6273 pathoswith 1464
        cmp     [ebp+NTFS.cur_read], ecx
2288 clevermous 1465
        jb      @f
6273 pathoswith 1466
        mov     [ebp+NTFS.cur_read], ecx
2288 clevermous 1467
@@:
6273 pathoswith 1468
        xchg    ecx, [ebp+NTFS.cur_read]
2288 clevermous 1469
        push    ecx
1470
        mov     edi, edx
6273 pathoswith 1471
        lea     esi, [ebp+NTFS.bitmap_buf]
2288 clevermous 1472
        add     [esp+10h+4], ecx
1473
        rep movsb
1474
        pop     ecx
1475
        xor     eax, eax
6273 pathoswith 1476
        cmp     ecx, [ebp+NTFS.cur_read]
2288 clevermous 1477
        jz      @f
1478
        mov     al, ERROR_END_OF_FILE
1479
@@:
1480
        mov     [esp+1Ch], eax
3742 clevermous 1481
        call    ntfs_unlock
2288 clevermous 1482
        popad
1483
        ret
1400 turbanoff 1484
 
2288 clevermous 1485
;----------------------------------------------------------------
3742 clevermous 1486
ntfs_ReadFolder:
1487
        call    ntfs_lock
6297 pathoswith 1488
        mov     [ebp+NTFS.cur_iRecord], 5   ; root directory
2288 clevermous 1489
        cmp     byte [esi], 0
6297 pathoswith 1490
        jz      @f
3742 clevermous 1491
        stdcall ntfs_find_lfn, [esp+4]
6297 pathoswith 1492
        jc      ntfsNotFound
1493
@@:
6273 pathoswith 1494
        mov     [ebp+NTFS.cur_attr], 0x10   ; $STANDARD_INFORMATION
1495
        and     [ebp+NTFS.cur_offs], 0
1496
        mov     [ebp+NTFS.cur_size], 1
1497
        lea     eax, [ebp+NTFS.bitmap_buf]
1498
        mov     [ebp+NTFS.cur_buf], eax
2288 clevermous 1499
        call    ntfs_read_attr
6297 pathoswith 1500
        jc      ntfsFail
6273 pathoswith 1501
        mov     [ebp+NTFS.cur_attr], 0x90   ; $INDEX_ROOT
6297 pathoswith 1502
.doit:
3742 clevermous 1503
        mov     eax, [ebp+NTFS.cur_index_size]
6273 pathoswith 1504
        mov     [ebp+NTFS.cur_size], eax
3742 clevermous 1505
        mov     eax, [ebp+NTFS.cur_index_buf]
6273 pathoswith 1506
        mov     [ebp+NTFS.cur_buf], eax
6297 pathoswith 1507
        call    ntfs_read_attr.newAttribute
1508
        jc      ntfsFail
6273 pathoswith 1509
        cmp     [ebp+NTFS.cur_read], 0x20
6297 pathoswith 1510
        jc      ntfsFail
3742 clevermous 1511
        mov     esi, [ebp+NTFS.cur_index_buf]
6340 pathoswith 1512
        mov     eax, [esi+indexRecordSize]
1513
        shr     eax, 9
1514
        cmp     [ebp+NTFS.cur_index_size], eax
6297 pathoswith 1515
        jc      .realloc
6340 pathoswith 1516
        mov     [ebp+NTFS.cur_subnode_size], eax
6297 pathoswith 1517
        add     esi, rootNode
1518
        mov     eax, [esi+nodeRealSize]
1519
        add     eax, rootNode
1520
        cmp     [ebp+NTFS.cur_read], eax
6408 pathoswith 1521
        jc      ntfsFail
1522
        mov     edi, [ebx+16]
1523
        mov     ecx, [ebx+12]
1524
        pushd   [ebx]
1525
        pushd   [ebx+8]     ; read ANSI/UNICODE name
1526
        push    edi
1527
        mov     edx, esp
1528
        mov     ebx, [ebx+4]
2288 clevermous 1529
; init header
1530
        xor     eax, eax
6408 pathoswith 1531
        mov     [edi+8], eax
1532
        mov     [edi+4], eax
1533
        inc     eax
1534
        mov     [edi], eax      ; version
1535
        add     edi, 32
3742 clevermous 1536
; edi -> BDFE, esi -> current index data, ebx = first wanted block,
2288 clevermous 1537
; ecx = number of blocks to read
1538
; edx -> parameters block: dd , dd 
6273 pathoswith 1539
        cmp     [ebp+NTFS.cur_iRecord], 5
2288 clevermous 1540
        jz      .skip_specials
1541
; dot and dotdot entries
1542
        push    esi
1543
        xor     esi, esi
1544
        call    .add_special_entry
1545
        inc     esi
1546
        call    .add_special_entry
1547
        pop     esi
1548
.skip_specials:
1549
; at first, dump index root
6297 pathoswith 1550
        add     esi, [esi+indexOffset]
2288 clevermous 1551
.dump_root:
6297 pathoswith 1552
        test    byte [esi+indexFlags], 2
2288 clevermous 1553
        jnz     .dump_root_done
1554
        call    .add_entry
6297 pathoswith 1555
        movzx   eax, word [esi+indexAllocatedSize]
2288 clevermous 1556
        add     esi, eax
1557
        jmp     .dump_root
6297 pathoswith 1558
 
1559
.realloc:
6340 pathoswith 1560
        mov     edi, eax
1561
        mov     eax, [esi+indexRecordSize]
1562
        shl     eax, 1
1563
        stdcall kernel_alloc, eax
6297 pathoswith 1564
        test    eax, eax
6408 pathoswith 1565
        jz      ntfsFail
6405 pathoswith 1566
        mov     edx, [ebp+NTFS.cur_index_buf]
1567
        cmp     edx, [ebp+NTFS.secondIndexBuffer]
1568
        jc      @f
1569
        mov     edx, [ebp+NTFS.secondIndexBuffer]
1570
@@:
6297 pathoswith 1571
        mov     [ebp+NTFS.cur_index_buf], eax
6340 pathoswith 1572
        add     eax, [esi+indexRecordSize]
1573
        mov     [ebp+NTFS.secondIndexBuffer], eax
1574
        mov     [ebp+NTFS.cur_index_size], edi
6405 pathoswith 1575
        stdcall kernel_free, edx
6297 pathoswith 1576
        jmp     .doit
1577
 
2288 clevermous 1578
.dump_root_done:
1579
; now dump all subnodes
1580
        push    ecx edi
6273 pathoswith 1581
        lea     edi, [ebp+NTFS.bitmap_buf]
1582
        mov     [ebp+NTFS.cur_buf], edi
2288 clevermous 1583
        mov     ecx, 0x400/4
1584
        xor     eax, eax
1585
        rep stosd
6273 pathoswith 1586
        mov     [ebp+NTFS.cur_attr], 0xB0   ; $BITMAP
1587
        and     [ebp+NTFS.cur_offs], 0
1588
        mov     [ebp+NTFS.cur_size], 2
6297 pathoswith 1589
        call    ntfs_read_attr.newAttribute
2288 clevermous 1590
        pop     edi ecx
1591
        push    0       ; save offset in $BITMAP attribute
6273 pathoswith 1592
        and     [ebp+NTFS.cur_offs], 0
2288 clevermous 1593
.dumploop:
6273 pathoswith 1594
        mov     [ebp+NTFS.cur_attr], 0xA0
3742 clevermous 1595
        mov     eax, [ebp+NTFS.cur_subnode_size]
6273 pathoswith 1596
        mov     [ebp+NTFS.cur_size], eax
6297 pathoswith 1597
        mov     esi, [ebp+NTFS.cur_index_buf]
1598
        mov     [ebp+NTFS.cur_buf], esi
6273 pathoswith 1599
        mov     eax, [ebp+NTFS.cur_offs]
6297 pathoswith 1600
        push    eax
3742 clevermous 1601
        imul    eax, [ebp+NTFS.cur_subnode_size]
6273 pathoswith 1602
        mov     [ebp+NTFS.cur_offs], eax
6297 pathoswith 1603
        call    ntfs_read_attr.newAttribute
6273 pathoswith 1604
        pop     [ebp+NTFS.cur_offs]
3742 clevermous 1605
        mov     eax, [ebp+NTFS.cur_subnode_size]
2288 clevermous 1606
        shl     eax, 9
6273 pathoswith 1607
        cmp     [ebp+NTFS.cur_read], eax
2288 clevermous 1608
        jnz     .done
1609
        push    eax
6273 pathoswith 1610
        mov     eax, [ebp+NTFS.cur_offs]
2288 clevermous 1611
        and     eax, 0x400*8-1
6273 pathoswith 1612
        bt      dword [ebp+NTFS.bitmap_buf], eax
2288 clevermous 1613
        pop     eax
1614
        jnc     .dump_subnode_done
1615
        cmp     dword [esi], 'INDX'
1616
        jnz     .dump_subnode_done
1617
        push    ebx
1618
        mov     ebx, esi
1619
        call    ntfs_restore_usa
1620
        pop     ebx
1621
        jc      .dump_subnode_done
6297 pathoswith 1622
        add     esi, recordNode
1623
        add     esi, [esi+indexOffset]
2288 clevermous 1624
.dump_subnode:
6297 pathoswith 1625
        test    byte [esi+indexFlags], 2
2288 clevermous 1626
        jnz     .dump_subnode_done
1627
        call    .add_entry
6297 pathoswith 1628
        movzx   eax, word [esi+indexAllocatedSize]
2288 clevermous 1629
        add     esi, eax
1630
        jmp     .dump_subnode
6297 pathoswith 1631
 
2288 clevermous 1632
.dump_subnode_done:
6273 pathoswith 1633
        inc     [ebp+NTFS.cur_offs]
1634
        test    [ebp+NTFS.cur_offs], 0x400*8-1
2288 clevermous 1635
        jnz     .dumploop
6273 pathoswith 1636
        mov     [ebp+NTFS.cur_attr], 0xB0
2288 clevermous 1637
        push    ecx edi
6273 pathoswith 1638
        lea     edi, [ebp+NTFS.bitmap_buf]
1639
        mov     [ebp+NTFS.cur_buf], edi
2288 clevermous 1640
        mov     ecx, 0x400/4
1641
        xor     eax, eax
1642
        rep stosd
1643
        pop     edi ecx
1644
        pop     eax
6273 pathoswith 1645
        push    [ebp+NTFS.cur_offs]
2288 clevermous 1646
        inc     eax
6273 pathoswith 1647
        mov     [ebp+NTFS.cur_offs], eax
1648
        mov     [ebp+NTFS.cur_size], 2
2288 clevermous 1649
        push    eax
6297 pathoswith 1650
        call    ntfs_read_attr.newAttribute
2288 clevermous 1651
        pop     eax
6273 pathoswith 1652
        pop     [ebp+NTFS.cur_offs]
2288 clevermous 1653
        push    eax
1654
        jmp     .dumploop
6297 pathoswith 1655
 
2288 clevermous 1656
.done:
1657
        pop     eax
6408 pathoswith 1658
        pop     eax
1659
        mov     ebx, [eax+4]
1660
        pop     eax
1661
        pop     eax
1662
        test    eax, eax
1663
        jz      .ret
2288 clevermous 1664
        xor     eax, eax
1665
        dec     ecx
1666
        js      @f
1667
        mov     al, ERROR_END_OF_FILE
1668
@@:
6408 pathoswith 1669
        push    eax
3742 clevermous 1670
        call    ntfs_unlock
6408 pathoswith 1671
        pop     eax
2288 clevermous 1672
        ret
1673
 
1674
.add_special_entry:
1675
        mov     eax, [edx]
1676
        inc     dword [eax+8]   ; new file found
1677
        dec     ebx
1678
        jns     .ret
1679
        dec     ecx
1680
        js      .ret
1681
        inc     dword [eax+4]   ; new file block copied
1682
        mov     eax, [edx+4]
1683
        mov     [edi+4], eax
1684
        mov     eax, 0x10
1685
        stosd
1686
        scasd
1687
        push    edx
6273 pathoswith 1688
        mov     eax, dword [ebp+NTFS.bitmap_buf]
1689
        mov     edx, dword [ebp+NTFS.bitmap_buf+4]
2288 clevermous 1690
        call    ntfs_datetime_to_bdfe
6273 pathoswith 1691
        mov     eax, dword [ebp+NTFS.bitmap_buf+0x18]
1692
        mov     edx, dword [ebp+NTFS.bitmap_buf+0x1C]
2288 clevermous 1693
        call    ntfs_datetime_to_bdfe
6273 pathoswith 1694
        mov     eax, dword [ebp+NTFS.bitmap_buf+8]
1695
        mov     edx, dword [ebp+NTFS.bitmap_buf+0xC]
2288 clevermous 1696
        call    ntfs_datetime_to_bdfe
1697
        pop     edx
1698
        xor     eax, eax
1699
        stosd
1700
        stosd
1701
        mov     al, '.'
1702
        push    edi ecx
1703
        lea     ecx, [esi+1]
1704
        test    byte [edi-0x24], 1
1705
        jz      @f
1706
        rep stosw
1707
        pop     ecx
1708
        xor     eax, eax
1709
        stosw
1710
        pop     edi
1711
        add     edi, 520
1712
        ret
6297 pathoswith 1713
 
2288 clevermous 1714
@@:
1715
        rep stosb
1716
        pop     ecx
1717
        xor     eax, eax
1718
        stosb
1719
        pop     edi
1720
        add     edi, 264
1721
.ret:
1722
        ret
1723
 
1724
.add_entry:
1725
; do not return DOS 8.3 names
6297 pathoswith 1726
        cmp     byte [esi+namespace], 2
2288 clevermous 1727
        jz      .ret
1728
; do not return system files
1729
; ... note that there will be no bad effects if system files also were reported ...
6297 pathoswith 1730
        cmp     dword [esi+fileRecordReference], 0x10
2288 clevermous 1731
        jb      .ret
1732
        mov     eax, [edx]
1733
        inc     dword [eax+8]   ; new file found
1734
        dec     ebx
1735
        jns     .ret
1736
        dec     ecx
1737
        js      .ret
1738
        inc     dword [eax+4]   ; new file block copied
1739
        mov     eax, [edx+4]    ; flags
1740
        call    ntfs_direntry_to_bdfe
1741
        push    ecx esi edi
6297 pathoswith 1742
        movzx   ecx, byte [esi+fileNameLength]
1743
        add     esi, fileName
2288 clevermous 1744
        test    byte [edi-0x24], 1
1745
        jz      .ansi
1746
        shr     ecx, 1
1747
        rep movsd
1748
        adc     ecx, ecx
1749
        rep movsw
1750
        and     word [edi], 0
1751
        pop     edi
1752
        add     edi, 520
1753
        pop     esi ecx
1754
        ret
6297 pathoswith 1755
 
2288 clevermous 1756
.ansi:
1757
        jecxz   .skip
1758
@@:
1759
        lodsw
1760
        call    uni2ansi_char
1761
        stosb
1762
        loop    @b
1763
.skip:
1764
        xor     al, al
1765
        stosb
1766
        pop     edi
1767
        add     edi, 264
1768
        pop     esi ecx
1769
        ret
1770
 
1771
ntfs_direntry_to_bdfe:
1772
        mov     [edi+4], eax    ; ANSI/UNICODE name
6297 pathoswith 1773
        mov     eax, [esi+fileFlags]
2288 clevermous 1774
        test    eax, 0x10000000
1775
        jz      @f
1776
        and     eax, not 0x10000000
1777
        or      al, 0x10
1778
@@:
1779
        stosd
1780
        scasd
1781
        push    edx
6297 pathoswith 1782
        mov     eax, [esi+fileCreated]
1783
        mov     edx, [esi+fileCreated+4]
2288 clevermous 1784
        call    ntfs_datetime_to_bdfe
6297 pathoswith 1785
        mov     eax, [esi+fileAccessed]
1786
        mov     edx, [esi+fileAccessed+4]
2288 clevermous 1787
        call    ntfs_datetime_to_bdfe
6297 pathoswith 1788
        mov     eax, [esi+fileModified]
1789
        mov     edx, [esi+fileModified+4]
2288 clevermous 1790
        call    ntfs_datetime_to_bdfe
1791
        pop     edx
6297 pathoswith 1792
        mov     eax, [esi+fileRealSize]
2288 clevermous 1793
        stosd
6297 pathoswith 1794
        mov     eax, [esi+fileRealSize+4]
2288 clevermous 1795
        stosd
1796
        ret
1797
 
1798
iglobal
6297 pathoswith 1799
months  db  31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
1800
months2 db  31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
2288 clevermous 1801
endg
1802
 
1803
ntfs_datetime_to_bdfe:
1804
; edx:eax = number of 100-nanosecond intervals since January 1, 1601, in UTC
6297 pathoswith 1805
        push    ebx ecx
1806
        mov     ebx, eax
2288 clevermous 1807
        mov     eax, edx
1808
        xor     edx, edx
6297 pathoswith 1809
        mov     ecx, 10000000
1810
        div     ecx
1811
        xchg    eax, ebx
1812
        div     ecx
1813
.forEXT:
1814
        xchg    eax, ebx
2288 clevermous 1815
        xor     edx, edx
6297 pathoswith 1816
        mov     ecx, 60
1817
        div     ecx
1818
        xchg    eax, ebx
1819
        div     ecx
2288 clevermous 1820
        mov     [edi], dl
6297 pathoswith 1821
        mov     edx, ebx
2288 clevermous 1822
; edx:eax = number of minutes
6297 pathoswith 1823
        div     ecx
2288 clevermous 1824
        mov     [edi+1], dl
6297 pathoswith 1825
; eax = number of hours
2288 clevermous 1826
        xor     edx, edx
6297 pathoswith 1827
        mov     cl, 24
1828
        div     ecx
1829
        mov     [edi+2], dx
2288 clevermous 1830
; eax = number of days since January 1, 1601
1831
        xor     edx, edx
6297 pathoswith 1832
        mov     cx, 365
1833
        div     ecx
1834
        mov     ebx, eax
1835
        add     ebx, 1601
1836
        shr     eax, 2
1837
        sub     edx, eax
1838
        mov     cl, 25
1839
        div     cl
1840
        xor     ah, ah
1841
        add     edx, eax
1842
        shr     eax, 2
1843
        sub     edx, eax
1844
        jns     @f
1845
        dec     ebx
1846
        add     edx, 365
1847
        test    bl, 3
2288 clevermous 1848
        jnz     @f
6297 pathoswith 1849
        inc     edx
2288 clevermous 1850
@@:
6297 pathoswith 1851
        xor     eax, eax
1852
        mov     ecx, months-1
1853
        test    bl, 3
2288 clevermous 1854
        jnz     @f
6297 pathoswith 1855
        add     ecx, 12
2288 clevermous 1856
@@:
6297 pathoswith 1857
        inc     ecx
2288 clevermous 1858
        inc     eax
6297 pathoswith 1859
        sub     dl, [ecx]
1860
        jnc     @b
1861
        dec     dh
1862
        jns     @b
1863
        add     dl, [ecx]
2288 clevermous 1864
        inc     edx
1865
        mov     [edi+4], dl
1866
        mov     [edi+5], al
6297 pathoswith 1867
        mov     [edi+6], bx
2288 clevermous 1868
        add     edi, 8
6297 pathoswith 1869
        pop     ecx ebx
2288 clevermous 1870
        ret
1871
 
6297 pathoswith 1872
.sec:
1873
        push    ebx ecx
1874
        mov     ebx, edx
1875
        jmp     .forEXT
1876
 
2288 clevermous 1877
;----------------------------------------------------------------
6420 pathoswith 1878
ntfs_GetFileInfo:
6426 pathoswith 1879
        call    ntfs_lock
1880
        mov     edi, [ebx+16]
6420 pathoswith 1881
        cmp     byte [esi], 0
6426 pathoswith 1882
        jz      .volume
6420 pathoswith 1883
        stdcall ntfs_find_lfn, [esp+4]
1884
        jnc     .found
1885
        test    eax, eax
1886
        jz      ntfsFail
1887
        jmp     ntfsNotFound
1888
 
1889
.found:
1890
        mov     esi, eax
1891
        xor     eax, eax
1892
        call    ntfs_direntry_to_bdfe
6426 pathoswith 1893
.end:
6420 pathoswith 1894
        call    ntfs_unlock
1895
        xor     eax, eax
1896
        ret
1897
 
6426 pathoswith 1898
.volume:
1899
        mov     byte [edi], 8
1900
        mov     eax, [ebx+8]
1901
        mov     [edi+4], eax
1902
        mov     eax, dword [ebp+NTFS.Length]
1903
        mov     edx, dword [ebp+NTFS.Length+4]
1904
        shld    edx, eax, 9
1905
        shl     eax, 9
1906
        mov     [edi+36], edx
1907
        mov     [edi+32], eax
1908
        add     edi, 40
1909
        mov     [ebp+NTFS.cur_buf], edi
1910
        mov     [ebp+NTFS.cur_iRecord], 3
1911
        mov     [ebp+NTFS.cur_attr], 0x60
1912
        mov     [ebp+NTFS.cur_offs], 0
1913
        mov     [ebp+NTFS.cur_size], 1
1914
        call    ntfs_read_attr
1915
        jc      ntfsFail
1916
        mov     ecx, [ebp+NTFS.cur_read]
1917
        mov     [edi+ecx], ax
1918
        cmp     [ebx+8], eax
1919
        jnz     .end
1920
        mov     esi, edi
1921
        shr     ecx, 1
1922
@@:
1923
        lodsw
1924
        call    uni2ansi_char
1925
        stosb
1926
        dec     ecx
1927
        jnz     @b
1928
        mov     byte [edi], 0
1929
        jmp     .end
1930
 
6420 pathoswith 1931
;----------------------------------------------------------------
3742 clevermous 1932
ntfs_CreateFolder:
6273 pathoswith 1933
        mov     [ebp+NTFS.bFolder], 1
5954 pathoswith 1934
        jmp     @f
5994 pathoswith 1935
 
5954 pathoswith 1936
ntfs_CreateFile:
6273 pathoswith 1937
        mov     [ebp+NTFS.bFolder], 0
5954 pathoswith 1938
@@:
1939
        cmp     byte [esi], 0
1940
        jnz     @f
2288 clevermous 1941
        xor     ebx, ebx
6019 pathoswith 1942
        movi    eax, ERROR_ACCESS_DENIED
2288 clevermous 1943
        ret
6297 pathoswith 1944
 
5954 pathoswith 1945
@@: ; 1. Search file
1946
        call    ntfs_lock
1947
        stdcall ntfs_find_lfn, [esp+4]
6080 pathoswith 1948
        jc      .notFound
1949
; found, rewrite
6273 pathoswith 1950
        cmp     [ebp+NTFS.cur_iRecord], 16
6019 pathoswith 1951
        jc      ntfsDenied
6273 pathoswith 1952
        cmp     [ebp+NTFS.bFolder], 1
6080 pathoswith 1953
        jz      .folder
6420 pathoswith 1954
        test    byte [eax+fileFlags], 1
1955
        jnz     ntfsDenied
6273 pathoswith 1956
        cmp     [ebp+NTFS.fragmentCount], 1
6080 pathoswith 1957
        jnz     ntfsUnsupported     ; record fragmented
6151 pathoswith 1958
; edit directory node
6080 pathoswith 1959
        mov     edi, [ebp+NTFS.cur_index_buf]
1960
        cmp     dword [edi], 'INDX'
1961
        jz      @f
1962
        mov     esi, [ebp+NTFS.frs_buffer]
1963
        mov     ecx, [esi+recordRealSize]
1964
        shr     ecx, 2
1965
        rep movsd
6273 pathoswith 1966
        mov     esi, [ebp+NTFS.attr_offs]
6080 pathoswith 1967
        mov     cl, [esi+attributeOffset]
1968
        sub     esi, [ebp+NTFS.frs_buffer]
1969
        add     eax, ecx
1970
        add     eax, esi
1971
@@:
6420 pathoswith 1972
        mov     edi, eax
1973
        mov     eax, [ebx+12]
1974
        mov     [edi+fileRealSize], eax
1975
        mov     dword [edi+fileRealSize+4], 0
1976
        push    ebx eax
1977
        call    ntfsGetTime
1978
        mov     [edi+fileModified], eax
1979
        mov     [edi+fileModified+4], edx
1980
        mov     [edi+recordModified], eax
1981
        mov     [edi+recordModified+4], edx
1982
        mov     [edi+fileAccessed], eax
1983
        mov     [edi+fileAccessed+4], edx
1984
        pop     edx ebx
6273 pathoswith 1985
        mov     eax, [ebp+NTFS.LastRead]
6080 pathoswith 1986
        mov     [ebp+NTFS.nodeLastRead], eax
6273 pathoswith 1987
        mov     [ebp+NTFS.cur_attr], 0x80
1988
        mov     [ebp+NTFS.cur_offs], 0
1989
        mov     [ebp+NTFS.cur_size], 0
5994 pathoswith 1990
        call    ntfs_read_attr
6080 pathoswith 1991
        jc      ntfsFail
6420 pathoswith 1992
        mov     esi, edi
1993
        mov     edi, [ebp+NTFS.frs_buffer]
1994
        cmp     word [edi+baseRecordReuse], 0
1995
        jnz     ntfsUnsupported     ; auxiliary record
1996
        mov     al, [edi+attributeOffset]
1997
        add     edi, eax
1998
        mov     al, [edi+attributeOffset]
1999
        add     edi, eax
2000
        mov     ecx, 6
2001
        add     esi, fileModified
2002
        add     edi, 8
2003
        rep movsd
6080 pathoswith 2004
        mov     eax, edx
2005
        xor     edx, edx
6273 pathoswith 2006
        mov     ecx, [ebp+NTFS.attr_offs]
6151 pathoswith 2007
        cmp     word [ecx+attributeFlags], 0
2008
        jnz     ntfsUnsupported
2009
        push    ebx
2010
        cmp     byte [ecx+nonResidentFlag], 0
2011
        jz      @f
6080 pathoswith 2012
        cmp     [ecx+attributeRealSize+4], edx
2013
        jnz     @f
5994 pathoswith 2014
        cmp     [ecx+attributeRealSize], eax
6080 pathoswith 2015
        jz      ntfs_WriteFile.writeNode
2016
@@:
2017
        jmp     ntfs_WriteFile.resizeAttribute
5994 pathoswith 2018
 
6080 pathoswith 2019
.folder:
2020
        bt      dword [eax+fileFlags], 28
2021
        jnc     ntfsDenied
2022
        push    0
2023
        jmp     ntfsOut
2024
 
2025
.notFound:  ; create
2026
        test    eax, eax
2027
        jz      ntfsFail
6273 pathoswith 2028
        cmp     [ebp+NTFS.fragmentCount], 1
6080 pathoswith 2029
        jnz     ntfsUnsupported     ; record fragmented
6019 pathoswith 2030
; 2. Prepare directory record
5954 pathoswith 2031
        mov     ecx, esi
2032
@@:         ; count characters
2033
        inc     ecx
2034
        cmp     byte [ecx], '/'
6080 pathoswith 2035
        jz      ntfsNotFound    ; path folder not found
5954 pathoswith 2036
        cmp     byte [ecx], 0
2037
        jnz     @b
2038
        sub     ecx, esi
6297 pathoswith 2039
        push    ecx     ; name length
2040
        shl     ecx, 1
2041
        add     ecx, fileName+7
2042
        and     ecx, not 7
5954 pathoswith 2043
        mov     edi, [ebp+NTFS.cur_index_buf]
6292 pathoswith 2044
        mov     edx, [ebx+12]
2045
        mov     [ebp+NTFS.fileRealSize], edx
2046
        mov     edx, [ebx+16]
2047
        mov     [ebp+NTFS.fileDataBuffer], edx
6297 pathoswith 2048
        push    esi
2049
        push    ecx     ; index length
6292 pathoswith 2050
        mov     edx, ecx
6019 pathoswith 2051
        cmp     dword [edi], 'INDX'
5954 pathoswith 2052
        jz      .indexRecord
6019 pathoswith 2053
        mov     esi, [ebp+NTFS.frs_buffer]  ; indexRoot
6292 pathoswith 2054
        mov     ecx, [esi+recordRealSize]
5954 pathoswith 2055
        add     edx, ecx
2056
        cmp     [esi+recordAllocatedSize], edx
6292 pathoswith 2057
        jc      .growTree
5954 pathoswith 2058
        mov     [esi+recordRealSize], edx
2059
        shr     ecx, 2
2060
        rep movsd
6407 pathoswith 2061
        mov     edi, [ebp+NTFS.indexRoot]
5954 pathoswith 2062
        sub     edi, [ebp+NTFS.frs_buffer]
2063
        add     edi, [ebp+NTFS.cur_index_buf]
2064
        mov     esi, [esp]
2065
        add     [edi+sizeWithHeader], esi
2066
        add     [edi+sizeWithoutHeader], esi
6019 pathoswith 2067
        mov     cl, [edi+attributeOffset]
5954 pathoswith 2068
        add     edi, ecx
6273 pathoswith 2069
        add     [edi+rootNode+nodeRealSize], esi
2070
        add     [edi+rootNode+nodeAllocatedSize], esi
5954 pathoswith 2071
        sub     eax, [ebp+NTFS.cur_index_buf]
2072
        add     eax, edi
2073
        mov     edi, [ebp+NTFS.cur_index_buf]
2074
        jmp     .common
2288 clevermous 2075
 
6411 pathoswith 2076
.growTree:  ; create indexRecord
2077
        mov     edi, [ebp+NTFS.cur_index_buf]
6292 pathoswith 2078
        mov     ecx, 10
2079
        xor     eax, eax
2080
        rep stosd
6407 pathoswith 2081
        mov     esi, [ebp+NTFS.indexRoot]
6340 pathoswith 2082
        mov     al, [esi+attributeOffset]
2083
        add     esi, eax
6292 pathoswith 2084
        rdtsc
2085
        stosw
2086
        mov     eax, [esi+indexRecordSize]
2087
        cmp     eax, [ebp+NTFS.frs_size]
6407 pathoswith 2088
        jc      .errorPop3
6292 pathoswith 2089
        shr     eax, 9
2090
        inc     eax
2091
        mov     edi, [ebp+NTFS.cur_index_buf]
2092
        mov     dword[edi], 'INDX'
2093
        mov     byte [edi+updateSequenceOffset], 28h
2094
        mov     [edi+updateSequenceSize], al
2095
        add     edi, recordNode
2096
        shl     eax, 1
2097
        add     eax, 28h-recordNode+7
2098
        and     eax, not 7
2099
        mov     [edi+indexOffset], eax
2100
        mov     ecx, [esi+indexRecordSize]
2101
        sub     ecx, recordNode
2102
        mov     [edi+nodeAllocatedSize], ecx
2103
        add     esi, rootNode
2104
        push    esi
2105
        mov     ecx, [esi+nodeRealSize]
2106
        sub     ecx, [esi+indexOffset]
2107
        add     eax, ecx
2108
        mov     [edi+nodeRealSize], eax
6411 pathoswith 2109
        mov     eax, [esi+nonLeafFlag]
2110
        mov     [edi+nonLeafFlag], eax
6292 pathoswith 2111
        shr     ecx, 2
2112
        add     esi, [esi+indexOffset]
2113
        add     edi, [edi+indexOffset]
2114
        rep movsd       ; copy root indexes
2115
; clear root node
2116
        mov     cl, 10
2117
        mov     edi, [esp]
2118
        xor     eax, eax
2119
        rep stosd
2120
        pop     edi
2121
        mov     byte [edi+indexOffset], 16
2122
        mov     byte [edi+nodeRealSize], 28h
2123
        mov     byte [edi+nodeAllocatedSize], 28h
2124
        mov     byte [edi+nonLeafFlag], 1
2125
        mov     byte [edi+16+indexAllocatedSize], 18h
2126
        mov     byte [edi+16+indexFlags], 3
6407 pathoswith 2127
        mov     esi, [ebp+NTFS.indexRoot]
6292 pathoswith 2128
        add     edi, 28h
2129
        mov     eax, edi
2130
        sub     eax, esi
2131
        mov     word [esi+sizeWithoutHeader], 38h
2132
        xchg    [esi+sizeWithHeader], eax
6407 pathoswith 2133
        add     esi, eax
2134
        mov     [ebp+NTFS.attr_offs], edi
2135
        cmp     byte [esi], 0xA0
2136
        jnz     @f
2137
        cmp     dword [esi+attributeAllocatedSize], 0
2138
        jz      @f
2139
        mov     eax, [ebp+NTFS.frs_buffer]
2140
        mov     ecx, eax
2141
        add     ecx, [eax+recordRealSize]
2142
        sub     ecx, esi
2143
        shr     ecx, 2
2144
        rep movsd
2145
        sub     edi, eax
2146
        mov     [eax+recordRealSize], edi
2147
        call    .ntfsNodeAlloc
2148
        jc      ntfsErrorPop3
2149
        mov     eax, [ebp+NTFS.newRecord]
2150
        mov     edi, [ebp+NTFS.cur_index_buf]
2151
        mov     [edi+recordVCN], eax
2152
        mov     edi, [ebp+NTFS.attr_offs]
2153
        mov     [edi-8], eax
2154
        jmp     .refresh
2155
 
2156
@@:
6292 pathoswith 2157
        mov     cl, 32
2158
        xor     eax, eax
2159
        rep stosd
6407 pathoswith 2160
        mov     eax, [ebp+NTFS.cur_subnode_size]
2161
        cmp     eax, [ebp+NTFS.cur_size]
2162
        jnz     @f
2163
        mov     al, 1
2164
@@:
2165
        mov     [ebp+NTFS.fileDataSize], eax
6292 pathoswith 2166
        mov     edi, [ebp+NTFS.BitmapStart]
2167
        call    ntfsSpaceAlloc
6407 pathoswith 2168
        movi    eax, ERROR_DISK_FULL
2169
        jc      ntfsErrorPop3
2170
; create $IndexAllocation
2171
        mov     edi, [ebp+NTFS.attr_offs]
6292 pathoswith 2172
        mov     byte [edi+attributeType], 0xA0
2173
        mov     byte [edi+nonResidentFlag], 1
2174
        mov     byte [edi+nameLength], 4
2175
        mov     byte [edi+nameOffset], 40h
2176
        mov     byte [edi+dataRunsOffset], 48h
2177
        mov     byte [edi+sizeWithHeader], 50h
2178
        mov     eax, [ebp+NTFS.fileDataSize]
2179
        dec     eax
2180
        mov     [edi+lastVCN], eax
2181
        inc     eax
2182
        mul     [ebp+NTFS.sectors_per_cluster]
2183
        shl     eax, 9
2184
        mov     [edi+attributeAllocatedSize], eax
2185
        mov     [edi+attributeRealSize], eax
2186
        mov     [edi+initialDataSize], eax
2187
        mov     dword[edi+40h], 490024h     ; unicode $I30
2188
        mov     dword[edi+40h+4], 300033h
2189
        push    edi
2190
        mov     esi, edi
2191
        add     edi, 48h
2192
        call    createMcbEntry
2193
        mov     esi, [ebp+NTFS.frs_buffer]
2194
        pop     edi
2195
        mov     al, [esi+newAttributeID]
2196
        mov     [edi+attributeID], al
2197
        add     edi, 50h
2198
        inc     eax
2199
; create $Bitmap
2200
        mov     [edi+attributeID], al
2201
        inc     eax
2202
        mov     [esi+newAttributeID], al
2203
        mov     byte [edi+attributeType], 0xB0
2204
        mov     byte [edi+nameLength], 4
2205
        mov     byte [edi+nameOffset], 18h
2206
        mov     byte [edi+attributeOffset], 20h
2207
        mov     byte [edi+sizeWithoutHeader], 8
2208
        mov     byte [edi+sizeWithHeader], 28h
2209
        mov     dword[edi+18h], 490024h     ; unicode $I30
2210
        mov     dword[edi+18h+4], 300033h
2211
        mov     byte [edi+20h], 1
2212
        mov     dword[edi+28h], -1
2213
        add     edi, 30h
2214
        sub     edi, esi
2215
        mov     [esi+recordRealSize], edi
2216
        mov     eax, [ebp+NTFS.fileDataStart]
2217
        mul     [ebp+NTFS.sectors_per_cluster]
6408 pathoswith 2218
        mov     edx, eax
6407 pathoswith 2219
        jmp     @f
2220
 
2221
.refresh:
2222
        mov     [ebp+NTFS.cur_size], 0
2223
        call    ntfs_read_attr.continue
2224
        movi    eax, ERROR_FS_FAIL
2225
        jc      ntfsErrorPop3
6408 pathoswith 2226
        mov     edx, [ebp+NTFS.LastRead]
6407 pathoswith 2227
@@:
6408 pathoswith 2228
        mov     ebx, [ebp+NTFS.cur_index_buf]
6407 pathoswith 2229
        call    writeRecord
6408 pathoswith 2230
        mov     ebx, [ebp+NTFS.frs_buffer]
2231
        mov     edx, [ebp+NTFS.rootLastRead]
6407 pathoswith 2232
        call    writeRecord
2233
        mov     esi, [esp+4]
2234
        stdcall ntfs_find_lfn.doit2, 0
2235
        test    eax, eax
2236
        jz      .errorPop3
6292 pathoswith 2237
        mov     edi, [ebp+NTFS.cur_index_buf]
2238
        mov     edx, [esp]
5954 pathoswith 2239
.indexRecord:
6273 pathoswith 2240
        add     edi, recordNode
6292 pathoswith 2241
        add     edx, [edi+nodeRealSize]
6273 pathoswith 2242
        cmp     [edi+nodeAllocatedSize], edx
6340 pathoswith 2243
        jc      .arborizeTree
2244
        mov     [edi+nodeRealSize], edx
2245
        jmp     .common
2246
 
2247
.errorPop3:
5954 pathoswith 2248
        add     esp, 12
6340 pathoswith 2249
        jmp     ntfsUnsupported
6292 pathoswith 2250
 
6407 pathoswith 2251
.ntfsNodeAlloc:
2252
; in: [ebp+NTFS.attr_offs] -> $IndexAllocation
2253
;   out:
2254
; [ebp+NTFS.newRecord] = node VCN
2255
; [ebp+NTFS.cur_offs]
2256
; CF=1 -> eax = error code
6340 pathoswith 2257
        mov     esi, [ebp+NTFS.attr_offs]
2258
        add     esi, [esi+sizeWithHeader]
2259
        cmp     byte [esi], 0xB0
6407 pathoswith 2260
        jnz     .ret
6414 pathoswith 2261
        movzx   ecx, word [esi+sizeWithoutHeader]
2262
        shr     ecx, 2
2263
        movzx   edi, byte [esi+attributeOffset]
2264
        add     edi, esi
2265
        mov     edx, edi
2266
        or      eax, -1
2267
        repz scasd
2268
        jnz     @f
2269
        cmp     [edi], eax
2270
        jnz     .ret
2271
; extend folder $Bitmap
2272
        add     word [esi+sizeWithHeader], 8
2273
        add     word [esi+sizeWithoutHeader], 8
2274
        mov     esi, [ebp+NTFS.frs_buffer]
2275
        mov     eax, [esi+recordRealSize]
2276
        add     eax, 8
2277
        cmp     [esi+recordAllocatedSize], eax
2278
        jc      .ret
2279
        mov     [esi+recordRealSize], eax
2280
        xor     eax, eax
2281
        stosd
2282
        mov     [edi], eax
2283
        mov     [edi+8], eax
2284
        dec     eax
2285
        mov     [edi+4], eax
2286
@@:
2287
        sub     edi, 4
2288
        mov     eax, [edi]
6340 pathoswith 2289
        not     eax
2290
        bsf     eax, eax
6414 pathoswith 2291
        bts     [edi], eax
2292
        sub     edi, edx
2293
        shl     edi, 3
2294
        add     eax, edi
6340 pathoswith 2295
        mul     [ebp+NTFS.cur_subnode_size]
2296
        mov     [ebp+NTFS.newRecord], eax
6407 pathoswith 2297
        mov     ecx, [ebp+NTFS.cur_size]
2298
        cmp     ecx, [ebp+NTFS.cur_subnode_size]
2299
        jz      @f
2300
        mul     [ebp+NTFS.sectors_per_cluster]
2301
@@:
2302
        mov     [ebp+NTFS.cur_offs], eax
2303
        add     eax, ecx
2304
        shl     eax, 9
2305
        mov     esi, [ebp+NTFS.attr_offs]
2306
        cmp     [esi+attributeAllocatedSize], eax
2307
        jnc     @f
2308
        xor     edx, edx
2309
        jmp     resizeAttribute
2310
 
2311
.ret:
2312
        movi    eax, ERROR_UNSUPPORTED_FS
2313
        stc
2314
@@:
2315
        ret
2316
 
2317
.arborizeTree:      ; find median index
6340 pathoswith 2318
        mov     ecx, [edi+nodeRealSize]
2319
        sub     ecx, [edi+indexOffset]
2320
        shr     ecx, 1
2321
        add     edi, [edi+indexOffset]
2322
        xor     eax, eax
2323
@@:
2324
        add     edi, eax
2325
        mov     ax, [edi+indexAllocatedSize]
2326
        sub     ecx, eax
2327
        jnc     @b
6407 pathoswith 2328
        add     eax, 8
6340 pathoswith 2329
        mov     esi, [ebp+NTFS.secondIndexBuffer]
2330
        cmp     dword [esi], 'INDX'
6411 pathoswith 2331
        jz      @f
6340 pathoswith 2332
; move index to the root node
2333
        mov     esi, [ebp+NTFS.frs_buffer]
6407 pathoswith 2334
        mov     ecx, eax
2335
        add     ecx, 8
2336
        add     ecx, [esi+recordRealSize]
6340 pathoswith 2337
        cmp     [esi+recordAllocatedSize], ecx
6411 pathoswith 2338
        jc      .growTree
6409 pathoswith 2339
        push    edi eax
6407 pathoswith 2340
        call    .ntfsNodeAlloc
6414 pathoswith 2341
        jc      ntfsErrorPop5
2342
        pop     eax
6340 pathoswith 2343
        mov     edi, [ebp+NTFS.indexRoot]
2344
        add     [ebp+NTFS.attr_offs], eax
2345
        add     [edi+sizeWithHeader], eax
2346
        add     [edi+sizeWithoutHeader], eax
2347
        movzx   ecx, byte [edi+attributeOffset]
2348
        add     ecx, edi
2349
        add     [ecx+rootNode+nodeRealSize], eax
2350
        add     [ecx+rootNode+nodeAllocatedSize], eax
6405 pathoswith 2351
        add     ecx, [ebp+NTFS.indexPointer]
6340 pathoswith 2352
        sub     ecx, [ebp+NTFS.secondIndexBuffer]
6409 pathoswith 2353
        mov     esi, [ebp+NTFS.frs_buffer]
2354
        add     [esi+recordRealSize], eax
2355
        add     esi, [esi+recordRealSize]
6340 pathoswith 2356
        mov     edi, esi
2357
        sub     esi, eax
2358
        neg     ecx
2359
        add     ecx, esi
2360
        shr     ecx, 2
2361
        sub     esi, 4
2362
        sub     edi, 4
2363
        std
2364
        rep movsd   ; make space
2365
        mov     [edi], ecx
2366
        mov     edi, esi
2367
        add     edi, 4
2368
        mov     esi, [esp]
2369
        add     word [esi+indexAllocatedSize], 8
2370
        mov     byte [esi+indexFlags], 1
2371
        mov     ecx, eax
2372
        sub     ecx, 8
2373
        shr     ecx, 2
2374
        cld
2375
        rep movsd   ; insert index
2376
        mov     eax, [ebp+NTFS.newRecord]
2377
        stosd
6411 pathoswith 2378
        jmp     .splitNode
2379
 
6414 pathoswith 2380
.growBranch:    ; move node and replace it with empty one
2381
        mov     esi, [ebp+NTFS.cur_index_buf]
2382
        mov     edi, [ebp+NTFS.secondIndexBuffer]
2383
        mov     eax, [esi+recordVCN]
2384
        mov     [edi+recordVCN], eax
2385
        add     edi, recordNode
2386
        mov     eax, [edi+indexOffset]
2387
        add     eax, 18h
2388
        mov     [edi+nodeRealSize], eax
2389
        add     edi, [edi+indexOffset]
2390
        mov     ecx, 6
2391
        xor     eax, eax
2392
        mov     [ebp+NTFS.indexPointer], edi
2393
        push    edi
2394
        rep stosd
2395
        pop     edi
2396
        mov     eax, [ebp+NTFS.newRecord]
2397
        mov     byte [edi+indexAllocatedSize], 18h
2398
        mov     byte [edi+indexFlags], 3
2399
        mov     [edi+16], eax
2400
        mov     [esi+recordVCN], eax
2401
        mov     eax, [ebp+NTFS.LastRead]
2402
        mov     [ebp+NTFS.nodeLastRead], eax
2403
        push    [ebp+NTFS.cur_size]
2404
        mov     [ebp+NTFS.cur_size], 0
2405
        call    ntfs_read_attr.continue
2406
        pop     [ebp+NTFS.cur_size]
2407
        movi    eax, ERROR_FS_FAIL
2408
        jc      ntfsErrorPop5
2409
        pop     eax edi
6411 pathoswith 2410
@@:         ; move index to the branch node
6414 pathoswith 2411
        push    edi eax
2412
        call    .ntfsNodeAlloc
2413
        jc      ntfsErrorPop5
2414
        mov     eax, [esp]
2415
        mov     esi, [ebp+NTFS.secondIndexBuffer]
6411 pathoswith 2416
        add     esi, recordNode
2417
        mov     ecx, [esi+nodeRealSize]
2418
        add     eax, ecx
2419
        cmp     [esi+nodeAllocatedSize], eax
6414 pathoswith 2420
        jc      .growBranch
6411 pathoswith 2421
        mov     [esi+nodeRealSize], eax
2422
        lea     edi, [esi+eax-4]
2423
        add     esi, ecx
2424
        mov     ecx, esi
2425
        sub     ecx, [ebp+NTFS.indexPointer]
2426
        shr     ecx, 2
2427
        sub     esi, 4
2428
        std
2429
        rep movsd   ; make space
2430
        mov     [edi], ecx
6414 pathoswith 2431
        pop     ecx
2432
        sub     ecx, 8
2433
        shr     ecx, 2
6411 pathoswith 2434
        mov     edi, esi
2435
        add     edi, 4
2436
        mov     esi, [esp]
2437
        add     word [esi+indexAllocatedSize], 8
2438
        mov     byte [esi+indexFlags], 1
2439
        cld
2440
        rep movsd   ; insert index
2441
        mov     eax, [ebp+NTFS.newRecord]
2442
        stosd
2443
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
2444
        mov     edx, [ebp+NTFS.nodeLastRead]
2445
        push    esi
2446
        call    writeRecord
2447
        pop     esi
2448
.splitNode:
6340 pathoswith 2449
        mov     edi, [ebp+NTFS.cur_index_buf]
2450
        mov     eax, edi
2451
        add     eax, recordNode
2452
        add     eax, [edi+recordNode+nodeRealSize]
2453
        sub     eax, esi
2454
        push    eax
2455
        mov     ecx, [edi+recordNode+indexOffset]
2456
        add     eax, ecx
2457
        add     ecx, recordNode
2458
        shr     ecx, 2
2459
        push    esi
2460
        mov     esi, edi
2461
        mov     edi, [ebp+NTFS.secondIndexBuffer]
2462
        rep movsd
2463
        pop     esi
2464
        pop     ecx
2465
        shr     ecx, 2
2466
        rep movsd
2467
        mov     edi, [ebp+NTFS.secondIndexBuffer]
2468
        mov     [edi+recordNode+nodeRealSize], eax
2469
        pop     edi
2470
        mov     cl, 4
2471
        xor     eax, eax
2472
        mov     esi, edi
2473
        rep stosd
2474
        mov     byte [esi+indexAllocatedSize], 16
2475
        mov     byte [esi+indexFlags], 2
2476
        mov     esi, [ebp+NTFS.cur_index_buf]
2477
        mov     eax, [ebp+NTFS.newRecord]
2478
        mov     [esi+recordVCN], eax
2479
        add     esi, recordNode
2480
        sub     edi, esi
2481
        mov     [esi+nodeRealSize], edi
6408 pathoswith 2482
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
2483
        mov     edx, [ebp+NTFS.LastRead]
6340 pathoswith 2484
        call    writeRecord
6407 pathoswith 2485
        jmp     .refresh
6340 pathoswith 2486
 
6292 pathoswith 2487
.common:
6273 pathoswith 2488
        add     edi, edx
2489
        sub     edi, 4
5954 pathoswith 2490
        mov     esi, edi
2491
        sub     esi, [esp]
2492
        mov     ecx, esi
6292 pathoswith 2493
        sub     ecx, eax    ; eax = pointer in the record
5954 pathoswith 2494
        shr     ecx, 2
2495
        inc     ecx
2496
        std
2497
        rep movsd           ; move forward, make space
2498
        mov     ecx, [esp]
2499
        shr     ecx, 2
2500
        xor     eax, eax
2501
        rep stosd
2502
        cld
2503
        add     edi, 4
6420 pathoswith 2504
        call    ntfsGetTime
2505
        mov     [edi+fileCreated], eax
2506
        mov     [edi+fileCreated+4], edx
2507
        mov     [edi+fileModified], eax
2508
        mov     [edi+fileModified+4], edx
2509
        mov     [edi+recordModified], eax
2510
        mov     [edi+recordModified+4], edx
2511
        mov     [edi+fileAccessed], eax
2512
        mov     [edi+fileAccessed+4], edx
6151 pathoswith 2513
        pop     ecx
5954 pathoswith 2514
        pop     esi
6151 pathoswith 2515
        mov     [edi+indexAllocatedSize], cx    ; fill index with data
5954 pathoswith 2516
        mov     eax, [esp]
6080 pathoswith 2517
        shl     eax, 1
2518
        add     eax, 42h
5954 pathoswith 2519
        mov     [edi+indexRawSize], ax
6418 pathoswith 2520
        mov     eax, [ebp+NTFS.cur_iRecord]
5954 pathoswith 2521
        mov     [edi+directoryRecordReference], eax
2522
        mov     eax, [ebp+NTFS.frs_buffer]
2523
        mov     eax, [eax+reuseCounter]
2524
        mov     [edi+directoryReferenceReuse], ax
6292 pathoswith 2525
        mov     eax, [ebp+NTFS.frs_size]
2526
        shr     eax, 8
6151 pathoswith 2527
        add     ecx, 30h+48h+8+18h+8
2528
        add     ecx, eax
6292 pathoswith 2529
        mov     eax, [ebp+NTFS.fileRealSize]
2530
        add     ecx, eax
5954 pathoswith 2531
        mov     [edi+fileRealSize], eax
6151 pathoswith 2532
        cmp     [ebp+NTFS.frs_size], ecx
2533
        jc      @f
2534
        xor     eax, eax
2535
@@:
5954 pathoswith 2536
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
2537
        shl     ecx, 9
2538
        add     eax, ecx
2539
        dec     eax
2540
        xor     edx, edx
2541
        div     ecx
2542
        mov     [ebp+NTFS.fileDataSize], eax
2543
        mul     ecx
2544
        mov     [edi+fileAllocatedSize], eax
2545
        pop     ecx
6405 pathoswith 2546
        mov     [ebp+NTFS.indexPointer], edi
5954 pathoswith 2547
        mov     [edi+fileNameLength], cl
6297 pathoswith 2548
        add     edi, fileName
5954 pathoswith 2549
@@:         ; record filename
2550
        lodsb
2551
        call    ansi2uni_char
2552
        stosw
2553
        dec     ecx
2554
        jnz     @b
6273 pathoswith 2555
        mov     eax, [ebp+NTFS.LastRead]
5954 pathoswith 2556
        mov     [ebp+NTFS.nodeLastRead], eax
6273 pathoswith 2557
        cmp     [ebp+NTFS.bFolder], 0
5954 pathoswith 2558
        jz      @f
6405 pathoswith 2559
        mov     edi, [ebp+NTFS.indexPointer]
6080 pathoswith 2560
        bts     dword [edi+fileFlags], 28
5954 pathoswith 2561
        jmp     .mftBitmap
2562
 
2563
@@: ; 3. File data
6151 pathoswith 2564
        cmp     [ebp+NTFS.fileDataSize], 0
5954 pathoswith 2565
        jz      .mftBitmap
6080 pathoswith 2566
        mov     edi, [ebp+NTFS.BitmapStart]
2567
        call    ntfsSpaceAlloc
2568
        jc      ntfsDiskFull
6292 pathoswith 2569
        mov     eax, [ebp+NTFS.fileDataStart]
5954 pathoswith 2570
        mul     [ebp+NTFS.sectors_per_cluster]
2571
        mov     ecx, [ebp+NTFS.fileRealSize]
2572
        add     ecx, 511
2573
        shr     ecx, 9
6292 pathoswith 2574
        mov     ebx, [ebp+NTFS.fileDataBuffer]
5954 pathoswith 2575
        call    fs_write64_app
2576
        test    eax, eax
6019 pathoswith 2577
        jnz     ntfsDevice
5954 pathoswith 2578
    ; 4. MFT record
2579
.mftBitmap: ; search for free record
2580
        mov     edi, [ebp+NTFS.mftBitmapBuffer]
2581
        mov     ecx, [ebp+NTFS.mftBitmapSize]
2582
        mov     al, -1
2583
        add     edi, 3
2584
        sub     ecx, 3
2585
        repz scasb
2586
        dec     edi
2587
        movzx   eax, byte [edi]
2588
        not     al
2589
        bsf     ecx, eax
6107 pathoswith 2590
        jz      .extendBitmapMFT    ; no free records
6019 pathoswith 2591
        bts     [edi], ecx
2592
; get record location
5954 pathoswith 2593
        sub     edi, [ebp+NTFS.mftBitmapBuffer]
2594
        shl     edi, 3
2595
        add     edi, ecx
6340 pathoswith 2596
        mov     [ebp+NTFS.newRecord], edi
5954 pathoswith 2597
        mov     eax, [ebp+NTFS.frs_size]
2598
        shr     eax, 9
2599
        mul     edi
6273 pathoswith 2600
        mov     [ebp+NTFS.cur_iRecord], 0
2601
        mov     [ebp+NTFS.cur_attr], 0x80
2602
        mov     [ebp+NTFS.cur_offs], eax
6405 pathoswith 2603
        push    eax
2604
        mov     [ebp+NTFS.cur_size], 0
5954 pathoswith 2605
        mov     eax, [ebp+NTFS.frs_buffer]
6273 pathoswith 2606
        mov     [ebp+NTFS.cur_buf], eax
5954 pathoswith 2607
        call    ntfs_read_attr
6405 pathoswith 2608
        pop     eax
2609
        jc      ntfsFail
2610
        cmp     eax, [ebp+NTFS.mftSize]
2611
        jnc     .extendMFT
6107 pathoswith 2612
        jmp     .mftRecord
2613
 
2614
.extendBitmapMFT:
2615
        mov     eax, [ebp+NTFS.sectors_per_cluster]
6405 pathoswith 2616
        mov     [ebp+NTFS.cur_offs], eax
6107 pathoswith 2617
        shl     eax, 9
2618
        cmp     [ebp+NTFS.mftBitmapSize], eax
2619
        jnc     ntfsUnsupported
6273 pathoswith 2620
        mov     [ebp+NTFS.cur_iRecord], 0
2621
        mov     [ebp+NTFS.cur_attr], 0xB0
2622
        mov     [ebp+NTFS.cur_size], 0
6107 pathoswith 2623
        call    ntfs_read_attr
2624
        jc      ntfsFail
5954 pathoswith 2625
        mov     eax, [ebp+NTFS.mft_cluster]
2626
        mul     [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 2627
        cmp     eax, [ebp+NTFS.LastRead]
6019 pathoswith 2628
        jnz     ntfsUnsupported     ; auxiliary record
6107 pathoswith 2629
        mov     edi, [ebp+NTFS.mftBitmapBuffer]
2630
        mov     ecx, [ebp+NTFS.mftBitmapSize]
2631
        add     edi, ecx
2632
        mov     eax, ecx
6273 pathoswith 2633
        mov     edx, [ebp+NTFS.attr_offs]
6107 pathoswith 2634
        add     ecx, 8
2635
        mov     [edx+attributeRealSize], ecx
2636
        mov     [edx+initialDataSize], ecx
2637
        shl     eax, 3
6340 pathoswith 2638
        mov     [ebp+NTFS.newRecord], eax
6107 pathoswith 2639
        mov     dword [edi], 1
2640
        mov     dword [edi+4], 0
6273 pathoswith 2641
        mov     [ebp+NTFS.cur_attr], 0x80
6405 pathoswith 2642
        mov     [ebp+NTFS.cur_offs], 0
6107 pathoswith 2643
        call    ntfs_read_attr.newAttribute
2644
        jc      ntfsFail
2645
        mov     [ebp+NTFS.mftBitmapSize], ecx
2646
.extendMFT:
2647
        mov     eax, [ebp+NTFS.mft_cluster]
5954 pathoswith 2648
        mul     [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 2649
        cmp     eax, [ebp+NTFS.LastRead]
6107 pathoswith 2650
        jnz     ntfsUnsupported     ; auxiliary record
6273 pathoswith 2651
        mov     ecx, [ebp+NTFS.attr_offs]
6107 pathoswith 2652
        mov     eax, [ecx+attributeRealSize]
2653
        mov     edx, [ecx+attributeRealSize+4]
2654
        xor     ax, ax
2655
        add     eax, 10000h
2656
        adc     edx, 0
2657
        push    [ebp+NTFS.fileDataStart]
2658
        push    [ebp+NTFS.fileDataSize]
2659
        call    resizeAttribute
2660
        jc      ntfsErrorPop2
6408 pathoswith 2661
        mov     ebx, [ebp+NTFS.frs_buffer]
2662
        mov     edx, [ebp+NTFS.LastRead]
5954 pathoswith 2663
        call    writeRecord     ; $MFT
2664
        mov     eax, [ebp+NTFS.mftmirr_cluster]
2665
        mul     [ebp+NTFS.sectors_per_cluster]
6408 pathoswith 2666
        mov     ecx, [ebp+NTFS.frs_size]
2667
        shr     ecx, 9
5954 pathoswith 2668
        call    fs_write64_sys  ; $MFTMirr
6405 pathoswith 2669
; update $MFT retrieval information
2670
        mov     edi, [ebp+NTFS.mft_retrieval_end]
2671
        mov     eax, [edi-4]
2672
        add     eax, [edi-8]
2673
        mov     edx, [ebp+NTFS.fileDataSize]
2674
        cmp     eax, [ebp+NTFS.fileDataStart]
2675
        jnz     .newFragment
2676
        add     [edi-8], edx
2677
        jmp     @f
2678
.newFragment:
2679
        lea     eax, [ebp+NTFS.attrlist_buf]
2680
        cmp     eax, edi
2681
        jz      @f
2682
        mov     [edi], edx
2683
        mov     eax, [ebp+NTFS.fileDataStart]
2684
        mov     [edi+4], eax
2685
        add     [ebp+NTFS.mft_retrieval_end], 8
2686
@@:
2687
        mov     eax, [ebp+NTFS.fileDataSize]
2688
        mul     [ebp+NTFS.sectors_per_cluster]
2689
        add     [ebp+NTFS.mftSize], eax
6107 pathoswith 2690
        call    ntfsSpaceClean
2691
        pop     [ebp+NTFS.fileDataSize]
2692
        pop     [ebp+NTFS.fileDataStart]
5954 pathoswith 2693
.mftRecord:
6151 pathoswith 2694
        mov     ecx, [ebp+NTFS.frs_size]
2695
        shr     ecx, 2
5954 pathoswith 2696
        mov     edi, [ebp+NTFS.frs_buffer]
2697
        xor     eax, eax
2698
        rep stosd
6418 pathoswith 2699
        mov     esi, [ebp+NTFS.indexPointer]
2700
        mov     eax, [ebp+NTFS.newRecord]
2701
        mov     [esi+fileRecordReference], eax
2702
        rdtsc
2703
        mov     [esi+fileReferenceReuse], ax
5954 pathoswith 2704
        mov     edi, [ebp+NTFS.frs_buffer]
6019 pathoswith 2705
; record header
6418 pathoswith 2706
        mov     [edi+reuseCounter], ax
6292 pathoswith 2707
        mov     [edi+2ah], ax
6151 pathoswith 2708
        mov     eax, [ebp+NTFS.frs_size]
2709
        mov     [edi+recordAllocatedSize], eax
2710
        shr     eax, 9
2711
        inc     eax
2712
        mov     [edi+updateSequenceSize], al
6292 pathoswith 2713
        shl     eax, 1
2714
        add     eax, 2ah+7
2715
        and     eax, not 7
5954 pathoswith 2716
        mov     dword[edi], 'FILE'
2717
        mov     byte [edi+updateSequenceOffset], 2ah
2718
        mov     byte [edi+hardLinkCounter], 1
2719
        mov     byte [edi+newAttributeID], 3
6292 pathoswith 2720
        mov     [edi+attributeOffset], al
2721
        add     edi, eax
6019 pathoswith 2722
; $StandardInformation
5954 pathoswith 2723
        mov     byte [edi+attributeType], 10h
2724
        mov     byte [edi+sizeWithHeader], 48h
2725
        mov     byte [edi+sizeWithoutHeader], 30h
2726
        mov     byte [edi+attributeOffset], 18h
6420 pathoswith 2727
        mov     cl, 8
2728
        add     esi, fileCreated
2729
        add     edi, 18h
2730
        rep movsd
2731
        add     edi, 16
2732
        mov     esi, [ebp+NTFS.indexPointer]
6019 pathoswith 2733
; $FileName
5954 pathoswith 2734
        mov     byte [edi+attributeType], 30h
2735
        mov     byte [edi+attributeID], 1
6151 pathoswith 2736
        mov     byte [edi+attributeOffset], 18h
2737
        mov     byte [edi+indexedFlag], 1
5954 pathoswith 2738
        mov     cx, [esi+indexRawSize]
2739
        mov     [edi+sizeWithoutHeader], ecx
2740
        mov     cx, [esi+indexAllocatedSize]
2741
        add     ecx, 8
2742
        mov     [edi+sizeWithHeader], ecx
2743
        add     edi, 18h
2744
        add     esi, 16
2745
        sub     ecx, 18h
2746
        shr     ecx, 2
2747
        rep movsd
6080 pathoswith 2748
        mov     byte [edi+sizeWithHeader], 50h
2749
        mov     byte [edi+attributeID], 2
6273 pathoswith 2750
        cmp     [ebp+NTFS.bFolder], 1
6151 pathoswith 2751
        jz      .indexRoot
6019 pathoswith 2752
; $Data
5954 pathoswith 2753
        mov     byte [edi+attributeType], 80h
6151 pathoswith 2754
        mov     eax, [ebp+NTFS.fileDataSize]
2755
        test    eax, eax
2756
        jz      .resident
6405 pathoswith 2757
        mov     esi, [ebp+NTFS.indexPointer]
6080 pathoswith 2758
        dec     eax
2759
        mov     [edi+lastVCN], eax
5954 pathoswith 2760
        mov     byte [edi+nonResidentFlag], 1
2761
        mov     byte [edi+dataRunsOffset], 40h
2762
        mov     eax, [esi+fileAllocatedSize]
2763
        mov     [edi+attributeAllocatedSize], eax
2764
        mov     eax, [esi+fileRealSize]
2765
        mov     [edi+attributeRealSize], eax
2766
        mov     [edi+initialDataSize], eax
6151 pathoswith 2767
        push    edi
6080 pathoswith 2768
        mov     esi, edi
2769
        add     edi, 40h
2770
        call    createMcbEntry
6151 pathoswith 2771
        inc     edi
2772
        jmp     @f
5954 pathoswith 2773
 
6151 pathoswith 2774
.resident:
2775
        mov     ecx, [ebp+NTFS.fileRealSize]
2776
        mov     [edi+sizeWithoutHeader], ecx
5954 pathoswith 2777
        mov     byte [edi+attributeOffset], 18h
6151 pathoswith 2778
        push    edi
6292 pathoswith 2779
        mov     esi, [ebp+NTFS.fileDataBuffer]
6151 pathoswith 2780
        add     edi, 18h
2781
        rep movsb
2782
@@:
2783
        mov     eax, edi
2784
        pop     edi
2785
        sub     eax, edi
2786
        add     eax, 7
2787
        and     eax, not 7
2788
        mov     [edi+sizeWithHeader], eax
2789
        add     edi, eax
5954 pathoswith 2790
        mov     al, 1
6292 pathoswith 2791
        jmp     .end
5954 pathoswith 2792
 
6151 pathoswith 2793
.indexRoot:
5954 pathoswith 2794
        mov     byte [edi+attributeType], 90h
2795
        mov     byte [edi+nameLength], 4
2796
        mov     byte [edi+nameOffset], 18h
2797
        mov     byte [edi+sizeWithoutHeader], 30h
2798
        mov     byte [edi+attributeOffset], 20h
2799
        mov     dword[edi+18h], 490024h     ; unicode $I30
2800
        mov     dword[edi+18h+4], 300033h
6273 pathoswith 2801
        mov     byte [edi+20h+indexedAttributesType], 30h
6019 pathoswith 2802
        mov     byte [edi+20h+collationRule], 1
5954 pathoswith 2803
        mov     eax, [ebp+NTFS.sectors_per_cluster]
6292 pathoswith 2804
        mov     dl, 1
2805
        shl     eax, 8
2806
@@:
2807
        shl     eax, 1
2808
        shl     edx, 1
2809
        cmp     eax, [ebp+NTFS.frs_size]
2810
        jc      @b
2811
        shr     edx, 1
6019 pathoswith 2812
        mov     [edi+20h+indexRecordSize], eax
6292 pathoswith 2813
        mov     [edi+20h+indexRecordSizeClus], dl
6019 pathoswith 2814
        mov     byte [edi+30h+indexOffset], 16
2815
        mov     byte [edi+30h+nodeRealSize], 32
2816
        mov     byte [edi+30h+nodeAllocatedSize], 32
2817
        mov     byte [edi+40h+indexAllocatedSize], 16
2818
        mov     byte [edi+40h+indexFlags], 2
6151 pathoswith 2819
        add     edi, 50h
5954 pathoswith 2820
        mov     al, 3
6292 pathoswith 2821
.end:
6408 pathoswith 2822
        mov     ebx, [ebp+NTFS.frs_buffer]
6151 pathoswith 2823
        mov     dword [edi], -1
2824
        mov     dword [edi+4], 0
2825
        add     edi, 8
6408 pathoswith 2826
        sub     edi, ebx
2827
        mov     [ebx+recordFlags], al
2828
        mov     [ebx+recordRealSize], edi
2829
        mov     edx, [ebp+NTFS.LastRead]
5954 pathoswith 2830
        call    writeRecord
6019 pathoswith 2831
; write MFT bitmap
6340 pathoswith 2832
        mov     eax, [ebp+NTFS.newRecord]
5954 pathoswith 2833
        shr     eax, 3+9
2834
        mov     ebx, eax
2835
        shl     ebx, 9
2836
        add     eax, [ebp+NTFS.mftBitmapLocation]
2837
        add     ebx, [ebp+NTFS.mftBitmapBuffer]
2838
        mov     ecx, 1
2839
        xor     edx, edx
2840
        call    fs_write64_sys
6292 pathoswith 2841
; 5. Write directory node
6408 pathoswith 2842
        mov     ebx, [ebp+NTFS.cur_index_buf]
2843
        mov     edx, [ebp+NTFS.nodeLastRead]
5954 pathoswith 2844
        call    writeRecord
6019 pathoswith 2845
        mov     ebx, [ebp+NTFS.fileRealSize]
2846
ntfsDone:
5954 pathoswith 2847
        mov     esi, [ebp+PARTITION.Disk]
2848
        call    disk_sync
2849
        call    ntfs_unlock
6019 pathoswith 2850
        xor     eax, eax
5954 pathoswith 2851
        ret
2852
 
2853
writeRecord:
6080 pathoswith 2854
; make updateSequence and write to disk
5954 pathoswith 2855
;   in:
6408 pathoswith 2856
; ebx -> record
2857
; edx = partition sector
2858
        mov     esi, ebx
2859
        mov     edi, ebx
5954 pathoswith 2860
        movzx   ecx, word [esi+updateSequenceOffset]
2861
        add     edi, ecx
2862
        mov     ax, [edi]
6080 pathoswith 2863
        inc     ax
2864
        stosw
5954 pathoswith 2865
        mov     cx, [esi+updateSequenceSize]
2866
        dec     ecx
2867
        push    ecx
2868
@@:
2869
        add     esi, 510
2870
        movsw
2871
        mov     [esi-2], ax
2872
        dec     ecx
2873
        jnz     @b
6408 pathoswith 2874
        mov     eax, edx
2875
        xor     edx, edx
5954 pathoswith 2876
        pop     ecx
2877
        jmp     fs_write64_sys
2878
 
6080 pathoswith 2879
createMcbEntry:
2880
;   in:
2881
; [ebp+NTFS.fileDataStart] = position value
2882
; [ebp+NTFS.fileDataSize] = size value
2883
; edi -> destination
2884
; esi -> attribute header
2885
        mov     eax, [ebp+NTFS.fileDataStart]
2886
        xor     edx, edx
2887
        shl     eax, 1
2888
        jnc     @f
2889
        not     eax
2890
@@:
2891
        inc     edx
2892
        shr     eax, 8
2893
        jnz     @b
2894
        mov     eax, [ebp+NTFS.fileDataSize]
2895
        shl     eax, 1
2896
        xor     ecx, ecx
2897
@@:
2898
        inc     ecx
2899
        shr     eax, 8
2900
        jnz     @b
2901
        lea     eax, [edi+edx+1]
2902
        add     eax, ecx
2903
        sub     eax, esi
6151 pathoswith 2904
        sub     eax, [esi+sizeWithHeader]
6080 pathoswith 2905
        jc      @f
2906
        add     word [esi+sizeWithHeader], 8    ; extend attribute
2907
        mov     esi, [ebp+NTFS.frs_buffer]
2908
        mov     eax, [esi+recordRealSize]
2909
        add     eax, 8
2910
        cmp     [esi+recordAllocatedSize], eax
2911
        jc      .end    ; no space in the record
2912
        mov     [esi+recordRealSize], eax
2913
        push    ecx edi
2914
        add     esi, eax
2915
        mov     ecx, esi
2916
        sub     ecx, edi
2917
        sub     ecx, 8
2918
        shr     ecx, 2
2919
        mov     edi, esi
2920
        sub     edi, 4
2921
        sub     esi, 12
2922
        std
2923
        rep movsd
2924
        cld
2925
        pop     edi ecx
2926
@@:
2927
        mov     eax, edx
2928
        shl     eax, 4
2929
        add     eax, ecx
2930
        stosb
2931
        lea     esi, [ebp+NTFS.fileDataSize]
2932
        rep movsb
2933
        lea     esi, [ebp+NTFS.fileDataStart]
2934
        mov     ecx, edx
2935
        rep movsb
6151 pathoswith 2936
        mov     [edi], cl
6080 pathoswith 2937
.end:
2938
        ret
2939
 
2940
resizeAttribute:
2941
;   in:
2942
; [ebp+NTFS.frs_buffer] -> file record
6273 pathoswith 2943
; [ebp+NTFS.attr_offs] -> attribute
6080 pathoswith 2944
; edx:eax = new size
2945
;   out:
6107 pathoswith 2946
; [ebp+NTFS.fileDataSize] = clusters added (positive)
2947
; [ebp+NTFS.fileDataStart] = added block
6080 pathoswith 2948
; CF=1 -> eax = error code
6273 pathoswith 2949
        mov     esi, [ebp+NTFS.attr_offs]
2950
        mov     dword [ebp+NTFS.attr_size], eax
2951
        mov     dword [ebp+NTFS.attr_size+4], edx
6151 pathoswith 2952
        cmp     byte [esi+nonResidentFlag], 0
2953
        jz      .resident
6080 pathoswith 2954
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
2955
        shl     ecx, 9
2956
        mov     [esi+attributeRealSize], eax
2957
        mov     [esi+attributeRealSize+4], edx
2958
        mov     [esi+initialDataSize], eax
2959
        mov     [esi+initialDataSize+4], edx
2960
        sub     eax, 1
2961
        sbb     edx, 0
6151 pathoswith 2962
        jc      .makeResident
6080 pathoswith 2963
        div     ecx
2964
        mov     edi, eax
2965
        inc     eax
2966
        mul     ecx
2967
        mov     [esi+attributeAllocatedSize], eax
2968
        mov     [esi+attributeAllocatedSize+4], edx
2969
        mov     ecx, [esi+lastVCN]
2970
        mov     [esi+lastVCN], edi
2971
        movzx   eax, byte [esi+dataRunsOffset]
2972
        sub     edi, ecx
6107 pathoswith 2973
        mov     [ebp+NTFS.fileDataSize], edi
6080 pathoswith 2974
        jz      .done
2975
        jc      .shrinkAttribute
2976
; extend attribute
2977
        xor     edi, edi
2978
        add     esi, eax
2979
        push    edi edi edi edi
2980
@@:
2981
        mov     edx, eax
2982
        mov     eax, esi
2983
        add     edi, [esp+8]
2984
        call    ntfs_decode_mcb_entry
2985
        jc      @b
2986
        mov     [esp+4], edx
2987
        mov     [esp+12], edi
2988
        add     edi, [esp]
2989
        push    edi
2990
        shr     edi, 5
2991
        shl     edi, 2
2992
        push    eax
6273 pathoswith 2993
        cmp     [ebp+NTFS.cur_iRecord], 0
6107 pathoswith 2994
        jz      @f
6080 pathoswith 2995
        cmp     edi, [ebp+NTFS.BitmapStart]
2996
        jc      .err1
6107 pathoswith 2997
@@:
6080 pathoswith 2998
        call    ntfsSpaceAlloc
2999
        jc      .err1
6292 pathoswith 3000
        mov     eax, [ebp+NTFS.fileDataStart]
6080 pathoswith 3001
        pop     edi
3002
        pop     edx
3003
        cmp     edx, eax
3004
        jnz     .newEntry
3005
        pop     edx
3006
        pop     edi
3007
        pop     [ebp+NTFS.fileDataStart]
3008
        mov     [esp], eax
3009
        push    [ebp+NTFS.fileDataSize]
3010
        add     [ebp+NTFS.fileDataSize], edx
3011
        jmp     @f
3012
 
3013
.newEntry:
3014
        add     esp, 12
3015
        pop     edx
3016
        push    eax
3017
        push    [ebp+NTFS.fileDataSize]
3018
        sub     eax, edx
3019
        mov     [ebp+NTFS.fileDataStart], eax
3020
@@:
6273 pathoswith 3021
        mov     esi, [ebp+NTFS.attr_offs]
6080 pathoswith 3022
        call    createMcbEntry
6292 pathoswith 3023
        pop     [ebp+NTFS.fileDataSize]
3024
        pop     [ebp+NTFS.fileDataStart]
3025
        movi    eax, ERROR_UNSUPPORTED_FS
6151 pathoswith 3026
.done:
3027
        ret
3028
 
6080 pathoswith 3029
.err1:
3030
        add     esp, 24
3031
        stc
6292 pathoswith 3032
.err2:
6151 pathoswith 3033
        movi    eax, ERROR_DISK_FULL
6080 pathoswith 3034
        ret
3035
 
6292 pathoswith 3036
.err3:
3037
        movi    eax, ERROR_FS_FAIL
3038
        add     esp, 20
3039
        stc
6080 pathoswith 3040
        ret
3041
 
3042
.shrinkAttribute:
3043
        add     ecx, edi
3044
        inc     ecx
3045
        add     esi, eax
3046
        xor     edi, edi
3047
        sub     esp, 20
3048
@@:
3049
        mov     [esp+16], esi
3050
        call    ntfs_decode_mcb_entry
3051
        jnc     .err3
3052
        add     edi, [esp+8]
3053
        sub     ecx, [esp]
3054
        jnc     @b
3055
        mov     ebx, ecx
3056
        add     ecx, [esp]
3057
        mov     eax, [esp+8]
3058
        mov     [ebp+NTFS.fileDataSize], ecx
3059
        mov     [ebp+NTFS.fileDataStart], eax
3060
        push    edi
3061
        add     edi, ecx
3062
        neg     ebx
3063
        call    ntfsSpaceFree
3064
        pop     edi
3065
        jc      .end
3066
@@:
3067
        call    ntfs_decode_mcb_entry
3068
        jnc     .end
3069
        cmp     dword[esp+8], 0
3070
        jz      @b
3071
        add     edi, [esp+8]
3072
        mov     ebx, [esp]
3073
        call    ntfsSpaceFree
3074
        jnc     @b
3075
.end:
3076
        add     esp, 16
3077
        pop     edi
3078
        cmp     [ebp+NTFS.fileDataSize], 0
3079
        jz      @f
6273 pathoswith 3080
        mov     esi, [ebp+NTFS.attr_offs]
6080 pathoswith 3081
        call    createMcbEntry
6107 pathoswith 3082
        mov     [ebp+NTFS.fileDataSize], 0
6080 pathoswith 3083
@@:
3084
        ret
3085
 
6151 pathoswith 3086
.resident:
3087
        test    edx, edx
3088
        jnz     .nonResident
3089
        cmp     eax, 8000h
3090
        jnc     .nonResident
3091
        add     ax, [esi+attributeOffset]
3092
        sub     eax, [esi+sizeWithHeader]
3093
        jc      @f
3094
        mov     edi, [ebp+NTFS.frs_buffer]
3095
        mov     ecx, eax
3096
        add     ecx, [edi+recordRealSize]
3097
        cmp     [edi+recordAllocatedSize], ecx
3098
        jc      .nonResident
3099
        add     eax, 7
3100
        and     eax, not 7
3101
        add     [edi+recordRealSize], eax
3102
        add     edi, [edi+recordRealSize]
3103
        add     [esi+sizeWithHeader], eax
3104
        add     esi, [esi+sizeWithHeader]
3105
        mov     ecx, edi
3106
        sub     ecx, esi
3107
        shr     ecx, 2
3108
        sub     edi, 4
3109
        mov     esi, edi
3110
        sub     esi, eax
3111
        std
3112
        rep movsd
3113
        mov     ecx, eax
3114
        shr     ecx, 2
3115
        xor     eax, eax
3116
        rep stosd
3117
        cld
6273 pathoswith 3118
        mov     esi, [ebp+NTFS.attr_offs]
6151 pathoswith 3119
@@:
6273 pathoswith 3120
        mov     eax, dword [ebp+NTFS.attr_size]
6151 pathoswith 3121
        mov     [esi+sizeWithoutHeader], eax
3122
        mov     [ebp+NTFS.fileDataSize], 0
3123
        clc
3124
        ret
3125
 
3126
.nonResident:   ; convert resident to non-resident
6273 pathoswith 3127
        mov     eax, dword [ebp+NTFS.attr_size]
6151 pathoswith 3128
        sub     eax, 1
3129
        sbb     edx, 0
3130
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
3131
        shl     ecx, 9
3132
        div     ecx
3133
        inc     eax
3134
        mov     [ebp+NTFS.fileDataSize], eax
3135
        mov     edi, [ebp+NTFS.BitmapStart]
3136
        push    ecx
3137
        call    ntfsSpaceAlloc
3138
        pop     ecx
6292 pathoswith 3139
        jc      .err2
6273 pathoswith 3140
        mov     esi, [ebp+NTFS.attr_offs]
6151 pathoswith 3141
        xor     eax, eax
3142
        xor     edx, edx
3143
@@:
3144
        add     eax, ecx
3145
        inc     edx
3146
        cmp     eax, [esi+sizeWithoutHeader]
3147
        jc      @b
3148
        push    edx
3149
        push    eax
3150
        stdcall kernel_alloc, eax
3151
        mov     ecx, [esp]
3152
        shr     ecx, 2
3153
        mov     edi, eax
3154
        mov     ebx, eax
3155
        xor     eax, eax
3156
        rep stosd
3157
        mov     al, [esi+attributeOffset]
3158
        mov     ecx, [esi+sizeWithoutHeader]
3159
        add     esi, eax
3160
        mov     edi, ebx
3161
        rep movsb
3162
        mov     eax, [ebp+NTFS.fileDataStart]
3163
        mul     [ebp+NTFS.sectors_per_cluster]
3164
        pop     ecx
3165
        shr     ecx, 9
3166
        call    fs_write64_app
6292 pathoswith 3167
        stdcall kernel_free, ebx
6273 pathoswith 3168
        mov     esi, [ebp+NTFS.attr_offs]
6151 pathoswith 3169
        add     esi, [esi+sizeWithHeader]
3170
        mov     ecx, [ebp+NTFS.frs_buffer]
3171
        add     ecx, [ecx+recordRealSize]
3172
        sub     ecx, esi
3173
        shr     ecx, 2
6273 pathoswith 3174
        lea     edi, [ebp+NTFS.bitmap_buf]
6151 pathoswith 3175
        push    ecx
3176
        rep movsd
6273 pathoswith 3177
        mov     edi, [ebp+NTFS.attr_offs]
6151 pathoswith 3178
        add     edi, 16
3179
        mov     cl, 6
3180
        xor     eax, eax
3181
        rep stosd
6273 pathoswith 3182
        mov     edi, [ebp+NTFS.attr_offs]
6151 pathoswith 3183
        mov     eax, [ebp+NTFS.fileDataSize]
3184
        dec     eax
3185
        mov     [edi+lastVCN], eax
3186
        inc     eax
3187
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
3188
        shl     ecx, 9
3189
        mul     ecx
3190
        mov     byte [edi+sizeWithHeader], 50h
3191
        mov     byte [edi+nonResidentFlag], 1
3192
        mov     byte [edi+dataRunsOffset], 40h
3193
        mov     [edi+attributeAllocatedSize], eax
3194
        mov     [edi+attributeAllocatedSize+4], edx
6273 pathoswith 3195
        mov     eax, dword [ebp+NTFS.attr_size]
3196
        mov     edx, dword [ebp+NTFS.attr_size+4]
6151 pathoswith 3197
        mov     [edi+attributeRealSize], eax
3198
        mov     [edi+attributeRealSize+4], edx
3199
        mov     [edi+initialDataSize], eax
3200
        mov     [edi+initialDataSize+4], edx
3201
        mov     esi, edi
3202
        add     edi, 40h
3203
        call    createMcbEntry
3204
        mov     eax, edi
6273 pathoswith 3205
        mov     edi, [ebp+NTFS.attr_offs]
6151 pathoswith 3206
        sub     eax, edi
3207
        add     eax, 8
3208
        and     eax, not 7
3209
        mov     [edi+sizeWithHeader], eax
3210
        pop     ecx
6273 pathoswith 3211
        lea     esi, [ebp+NTFS.bitmap_buf]
6151 pathoswith 3212
        add     edi, eax
3213
        rep movsd
3214
        mov     esi, [ebp+NTFS.frs_buffer]
3215
        sub     edi, esi
3216
        mov     [esi+recordRealSize], edi
3217
        pop     edx
3218
        sub     [ebp+NTFS.fileDataSize], edx
3219
        add     [ebp+NTFS.fileDataStart], edx
6292 pathoswith 3220
        ret
6151 pathoswith 3221
 
3222
.makeResident:  ; convert non-resident to empty resident
3223
        movzx   eax, byte [esi+dataRunsOffset]
3224
        mov     byte [esi+nonResidentFlag], 0
3225
        mov     dword [esi+sizeWithoutHeader], 0
3226
        mov     dword [esi+attributeOffset], 18h
3227
        add     esi, eax
3228
        xor     edi, edi
3229
        sub     esp, 16
3230
@@:
3231
        call    ntfs_decode_mcb_entry
3232
        jnc     @f
3233
        cmp     dword[esp+8], 0
3234
        jz      @b
3235
        add     edi, [esp+8]
3236
        mov     ebx, [esp]
3237
        call    ntfsSpaceFree
3238
        jnc     @b
3239
@@:
3240
        add     esp, 16
3241
        mov     [ebp+NTFS.fileDataSize], 0
3242
        ret
3243
 
6107 pathoswith 3244
ntfsSpaceClean:
3245
; clean up to 16 Mb of disk space
3246
;   in:
3247
; [ebp+NTFS.fileDataStart] = block to clean
3248
; [ebp+NTFS.fileDataSize] = block size
3249
        mov     eax, [ebp+NTFS.fileDataSize]
3250
        test    eax, eax
3251
        jz      @f
3252
        mul     [ebp+NTFS.sectors_per_cluster]
3253
        cmp     eax, 8001h
3254
        jnc     @f
3255
        push    eax
3256
        shl     eax, 9
3257
        stdcall kernel_alloc, eax
3258
        pop     ecx
3259
        test    eax, eax
3260
        jz      @f
3261
        push    ecx
3262
        shl     ecx, 7
3263
        mov     edi, eax
3264
        mov     ebx, eax
3265
        xor     eax, eax
3266
        rep stosd
3267
        mov     eax, [ebp+NTFS.fileDataStart]
3268
        mul     [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 3269
        mov     [ebp+NTFS.LastRead], eax
6107 pathoswith 3270
        pop     ecx
3271
        call    fs_write64_app
3272
        stdcall kernel_free, ebx
3273
@@:
3274
        ret
3275
 
6080 pathoswith 3276
ntfsSpaceAlloc:
6292 pathoswith 3277
; allocate disk space
6080 pathoswith 3278
;   in:
3279
; edi = offset in bitmap to start search from
3280
; [ebp+NTFS.fileDataSize] = block size in clusters
3281
;   out:
6292 pathoswith 3282
; [ebp+NTFS.fileDataStart] = allocated block starting cluster
6080 pathoswith 3283
; CF=1 -> disk full
6292 pathoswith 3284
        push    eax
6080 pathoswith 3285
        mov     ecx, [ebp+NTFS.BitmapBuffer]
3286
        add     edi, ecx
3287
        add     ecx, [ebp+NTFS.BitmapSize]
3288
        sub     ecx, edi
3289
        jnc     @f
3290
        call    bitmapBuffering
3291
        shl     ecx, 2
3292
@@:
3293
        shr     ecx, 2
3294
        mov     eax, [ebp+NTFS.fileDataSize]
3295
        shr     eax, 5
3296
        jz      .small
6292 pathoswith 3297
        mov     ebx, eax    ; bitmap dwords
6080 pathoswith 3298
.start:
3299
        mov     ecx, [ebp+NTFS.BitmapBuffer]
3300
        add     ecx, [ebp+NTFS.BitmapSize]
3301
        sub     ecx, edi
3302
        shr     ecx, 2
3303
@@:
3304
        xor     eax, eax
3305
        repnz scasd         ; search for empty dword
3306
        jz      @f
3307
        call    bitmapBuffering
3308
        jmp     @b
3309
@@:
6292 pathoswith 3310
        cmp     ecx, ebx
6080 pathoswith 3311
        jnc     @f
3312
        call    bitmapBuffering
3313
        jmp     @b
3314
@@:
3315
        sub     edi, 4
6292 pathoswith 3316
        mov     ecx, ebx
6080 pathoswith 3317
        mov     esi, edi
3318
        xor     eax, eax
3319
        repz scasd          ; check following dwords
3320
        jnz     .start
3321
        sub     esi, 4
3322
        mov     eax, [esi]
3323
        xor     edx, edx
3324
        bsr     edx, eax
3325
        inc     edx
3326
        push    edx         ; starting bit
3327
        push    esi         ; starting dword
3328
        add     esi, 4
3329
        neg     edx
3330
        add     edx, 32
3331
        mov     eax, [ebp+NTFS.fileDataSize]
3332
        sub     eax, edx
3333
        mov     edx, eax
3334
        shr     eax, 5
3335
        shl     eax, 2
3336
        add     esi, eax
3337
        mov     eax, [esi]
3338
        bsf     ecx, eax    ; check last dword
3339
        jz      .done
3340
        and     edx, 31
3341
        cmp     ecx, edx
3342
        jnc     .done
3343
        add     esp, 8
3344
        jmp     .start
3345
 
3346
.small:     ; less than 32 clusters
3347
        mov     eax, -1
3348
        repz scasd          ; search for zero bits
3349
        test    ecx, ecx
3350
        jnz     @f
3351
        call    bitmapBuffering
3352
        jmp     .small
3353
@@:
3354
        sub     edi, 4
3355
        mov     eax, [edi]
3356
        not     eax
3357
@@:
6292 pathoswith 3358
        bsf     ebx, eax    ; first 0
6080 pathoswith 3359
        jz      .again
3360
        not     eax
3361
        shr     eax, cl
3362
        shl     eax, cl
3363
        bsf     edx, eax    ; next 1
3364
        jz      @f
6292 pathoswith 3365
        sub     edx, ebx
6080 pathoswith 3366
        cmp     edx, [ebp+NTFS.fileDataSize]
3367
        jnc     .got        ; fits inside
6292 pathoswith 3368
        bsf     ebx, eax
6080 pathoswith 3369
        not     eax
3370
        shr     eax, cl
3371
        shl     eax, cl
3372
        jmp     @b
3373
@@:         ; next dword
3374
        mov     eax, [edi+4]
3375
        bsf     edx, eax
3376
        jz      .got        ; empty
3377
        add     edx, 32
6292 pathoswith 3378
        sub     edx, ebx
6080 pathoswith 3379
        cmp     edx, [ebp+NTFS.fileDataSize]
3380
        jnc     .got        ; share between dwords
3381
.again:
3382
        add     edi, 4
3383
        jmp     .small
3384
 
3385
.got:
6292 pathoswith 3386
        push    ebx         ; starting bit
6080 pathoswith 3387
        push    edi         ; starting dword
3388
.done:      ; mark space
3389
        mov     ecx, [esp+4]
3390
        cmp     ecx, 32
3391
        jc      @f
3392
        xor     ecx, ecx
3393
        add     dword [esp], 4
3394
        mov     [esp+4], ecx
3395
@@:
3396
        mov     edi, [esp]
3397
        xor     eax, eax
3398
        dec     eax
3399
        shr     eax, cl
3400
        shl     eax, cl
3401
        neg     ecx
3402
        add     ecx, 32
3403
        sub     ecx, [ebp+NTFS.fileDataSize]
3404
        jc      @f
3405
        shl     eax, cl     ; fits inside dword
3406
        shr     eax, cl
3407
        or      [edi], eax
3408
        jmp     .end
3409
 
3410
@@:
3411
        or      [edi], eax
3412
        neg     ecx
3413
        push    ecx
3414
        shr     ecx, 5
3415
        add     edi, 4
3416
        xor     eax, eax
3417
        dec     eax
3418
        rep stosd
3419
        pop     ecx
3420
        and     ecx, 31
3421
        shr     eax, cl
3422
        shl     eax, cl
3423
        not     eax
3424
        or      [edi], eax
3425
.end:
3426
        pop     eax
6292 pathoswith 3427
        pop     ecx
6080 pathoswith 3428
        sub     eax, [ebp+NTFS.BitmapBuffer]
3429
        shl     eax, 3
6292 pathoswith 3430
        add     eax, ecx
3431
        pop     ecx
3432
        mov     ecx, [ebp+NTFS.fileDataSize]
3433
        mov     [ebp+NTFS.fileDataStart], eax
3434
        add     ecx, eax
3435
        add     ecx, 4095
3436
        shr     ecx, 3+9
3437
        shr     eax, 3+9
3438
        sub     ecx, eax
3439
        mov     ebx, eax
3440
        shl     ebx, 9
3441
        add     eax, [ebp+NTFS.BitmapLocation]
3442
        add     ebx, [ebp+NTFS.BitmapBuffer]
3443
        xor     edx, edx
3444
        jmp     fs_write64_app
6080 pathoswith 3445
 
3446
ntfsSpaceFree:
3447
; free disk space
3448
;   in:
3449
; edi = starting cluster
3450
; ebx = size in clusters
3451
        mov     eax, edi
3452
        add     eax, ebx
3453
        shr     eax, 3
3454
        inc     eax
3455
        cmp     eax, [ebp+NTFS.BitmapSize]
3456
        jc      @f
3457
        add     eax, [ebp+NTFS.BitmapBuffer]
3458
        push    edi
3459
        mov     edi, eax
3460
        call    bitmapBuffering
3461
        pop     edi
3462
@@:
3463
        push    edi
3464
        mov     ecx, edi
3465
        shr     edi, 5
3466
        shl     edi, 2
3467
        add     edi, [ebp+NTFS.BitmapBuffer]
3468
        and     ecx, 31
3469
        xor     eax, eax
3470
        dec     eax
3471
        shr     eax, cl
3472
        shl     eax, cl
3473
        neg     ecx
3474
        add     ecx, 32
3475
        sub     ecx, ebx
3476
        jc      @f
3477
        shl     eax, cl     ; fits inside dword
3478
        shr     eax, cl
3479
        not     eax
3480
        and     [edi], eax
3481
        jmp     .writeBitmap
3482
 
3483
@@:
3484
        not     eax
3485
        and     [edi], eax
3486
        neg     ecx
3487
        push    ecx
3488
        shr     ecx, 5
3489
        add     edi, 4
3490
        xor     eax, eax
3491
        rep stosd
3492
        pop     ecx
3493
        and     ecx, 31
3494
        dec     eax
3495
        shr     eax, cl
3496
        shl     eax, cl
3497
        and     [edi], eax
3498
.writeBitmap:
3499
        pop     eax
3500
        mov     edi, eax
3501
        lea     ecx, [eax+ebx+4095]
3502
        shr     eax, 3+9
3503
        shr     ecx, 3+9
3504
        sub     ecx, eax
3505
        mov     ebx, eax
3506
        shl     ebx, 9
3507
        add     eax, [ebp+NTFS.BitmapLocation]
3508
        add     ebx, [ebp+NTFS.BitmapBuffer]
3509
        xor     edx, edx
3510
        jmp     fs_write64_app
3511
 
5954 pathoswith 3512
bitmapBuffering:
3513
; Extend BitmapBuffer and read next 32kb of bitmap
3514
; Warning: $Bitmap fragmentation is not foreseen
6080 pathoswith 3515
; in: edi -> position in bitmap buffer
3516
; out: ecx = number of buffered dwords left
5954 pathoswith 3517
        push    ebx
3518
        mov     eax, [ebp+NTFS.BitmapTotalSize]
3519
        cmp     eax, [ebp+NTFS.BitmapSize]
3520
        jz      .end
3521
        stdcall alloc_pages, 8
3522
        test    eax, eax
3523
        jz      .end
3524
        add     eax, 3
3525
        mov     ebx, [ebp+NTFS.BitmapBuffer]
3526
        add     ebx, [ebp+NTFS.BitmapSize]
3527
        push    ebx
3528
        mov     ecx, 8
3529
        call    commit_pages
3530
        mov     eax, [ebp+NTFS.BitmapSize]
3531
        shr     eax, 9
3532
        add     eax, [ebp+NTFS.BitmapLocation]
3533
        pop     ebx
3534
        mov     ecx, 64
3535
        xor     edx, edx
3536
        call    fs_read64_app
3537
        test    eax, eax
3538
        jnz     .err
3539
        add     [ebp+NTFS.BitmapSize], 8000h
3540
        mov     eax, [ebp+NTFS.BitmapTotalSize]
3541
        cmp     eax, [ebp+NTFS.BitmapSize]
3542
        jnc     @f
3543
        mov     [ebp+NTFS.BitmapSize], eax
3544
@@:
6080 pathoswith 3545
        pop     ebx
3546
        mov     ecx, [ebp+NTFS.BitmapBuffer]
3547
        add     ecx, [ebp+NTFS.BitmapSize]
6019 pathoswith 3548
        sub     ecx, edi
6080 pathoswith 3549
        jc      bitmapBuffering
5954 pathoswith 3550
        shr     ecx, 2
3551
        ret
3552
 
3553
.err:
3554
        mov     eax, [ebp+NTFS.BitmapBuffer]
3555
        add     eax, [ebp+NTFS.BitmapSize]
3556
        mov     ecx, 8
3557
        call    release_pages
3558
.end:
6292 pathoswith 3559
        add     esp, 12     ; ret
6080 pathoswith 3560
        stc
3561
        ret
5954 pathoswith 3562
 
2288 clevermous 3563
;----------------------------------------------------------------
5994 pathoswith 3564
ntfs_WriteFile:
3565
        cmp     byte [esi], 0
3566
        jnz     @f
2288 clevermous 3567
        xor     ebx, ebx
5994 pathoswith 3568
        movi    eax, ERROR_ACCESS_DENIED
2288 clevermous 3569
        ret
5994 pathoswith 3570
@@:
3571
        call    ntfs_lock
3572
        stdcall ntfs_find_lfn, [esp+4]
6019 pathoswith 3573
        jc      ntfsNotFound
6273 pathoswith 3574
        cmp     [ebp+NTFS.cur_iRecord], 16
6019 pathoswith 3575
        jc      ntfsDenied
6420 pathoswith 3576
        test    dword [eax+fileFlags], 10000001h
3577
        jnz     ntfsDenied
6273 pathoswith 3578
        cmp     [ebp+NTFS.fragmentCount], 1
6080 pathoswith 3579
        jnz     ntfsUnsupported     ; record fragmented
6151 pathoswith 3580
; edit directory node
6080 pathoswith 3581
        mov     edi, [ebp+NTFS.cur_index_buf]
3582
        cmp     dword [edi], 'INDX'
3583
        jz      @f
3584
        mov     esi, [ebp+NTFS.frs_buffer]
3585
        mov     ecx, [esi+recordRealSize]
3586
        shr     ecx, 2
3587
        rep movsd
6273 pathoswith 3588
        mov     esi, [ebp+NTFS.attr_offs]
6080 pathoswith 3589
        mov     cl, [esi+attributeOffset]
3590
        sub     esi, [ebp+NTFS.frs_buffer]
6151 pathoswith 3591
        add     eax, ecx
3592
        add     eax, esi
6080 pathoswith 3593
@@:
6420 pathoswith 3594
        mov     edi, eax
3595
        mov     eax, [ebx+4]
6151 pathoswith 3596
        mov     edx, [ebx+8]
6420 pathoswith 3597
        add     eax, [ebx+12]
6151 pathoswith 3598
        adc     edx, 0
6420 pathoswith 3599
        mov     [edi+fileRealSize], eax
3600
        mov     [edi+fileRealSize+4], edx
3601
        push    edx eax ebx
3602
        call    ntfsGetTime
3603
        mov     [edi+fileModified], eax
3604
        mov     [edi+fileModified+4], edx
3605
        mov     [edi+recordModified], eax
3606
        mov     [edi+recordModified+4], edx
3607
        mov     [edi+fileAccessed], eax
3608
        mov     [edi+fileAccessed+4], edx
3609
        pop     ebx ecx edx
6273 pathoswith 3610
        mov     eax, [ebp+NTFS.LastRead]
6151 pathoswith 3611
        mov     [ebp+NTFS.nodeLastRead], eax
6273 pathoswith 3612
        mov     [ebp+NTFS.cur_attr], 0x80
3613
        mov     [ebp+NTFS.cur_offs], 0
3614
        mov     [ebp+NTFS.cur_size], 0
5994 pathoswith 3615
        call    ntfs_read_attr
6080 pathoswith 3616
        jc      ntfsFail
6420 pathoswith 3617
        mov     esi, edi
3618
        mov     edi, [ebp+NTFS.frs_buffer]
3619
        cmp     word [edi+baseRecordReuse], 0
3620
        jnz     ntfsUnsupported     ; auxiliary record
3621
        mov     al, [edi+attributeOffset]
3622
        add     edi, eax
3623
        mov     al, [edi+attributeOffset]
3624
        add     edi, eax
6151 pathoswith 3625
        mov     eax, ecx
6420 pathoswith 3626
        mov     ecx, 6
3627
        add     esi, fileModified
3628
        add     edi, 8
3629
        rep movsd
6273 pathoswith 3630
        mov     ecx, [ebp+NTFS.attr_offs]
6151 pathoswith 3631
        cmp     word [ecx+attributeFlags], 0
3632
        jnz     ntfsUnsupported
3633
        push    ebx
3634
        cmp     byte [ecx+nonResidentFlag], 0
3635
        jz      .resizeAttribute
5994 pathoswith 3636
        cmp     edx, [ecx+attributeRealSize+4]
6080 pathoswith 3637
        jc      .writeNode
3638
        jnz     .resizeAttribute
5994 pathoswith 3639
        cmp     [ecx+attributeRealSize], eax
6080 pathoswith 3640
        jnc     .writeNode
3641
.resizeAttribute:
3642
        call    resizeAttribute
6107 pathoswith 3643
        jc      ntfsErrorPop
6273 pathoswith 3644
        mov     ecx, [ebp+NTFS.attr_offs]
6151 pathoswith 3645
        cmp     byte [ecx+nonResidentFlag], 1
3646
        jz      @f
3647
        mov     ebx, [esp]
3648
        movzx   edi, byte [ecx+attributeOffset]
3649
        add     edi, ecx
3650
        add     edi, [ebx+4]
3651
        mov     ecx, [ebx+12]
3652
        mov     esi, [ebx+16]
3653
        rep movsb
3654
@@:
6408 pathoswith 3655
        mov     ebx, [ebp+NTFS.frs_buffer]
3656
        mov     edx, [ebp+NTFS.mftLastRead]
6080 pathoswith 3657
        call    writeRecord     ; file
3658
        call    ntfs_restore_usa_frs
3659
.writeNode:
6408 pathoswith 3660
        mov     ebx, [ebp+NTFS.cur_index_buf]
3661
        mov     edx, [ebp+NTFS.nodeLastRead]
6080 pathoswith 3662
        call    writeRecord     ; directory
3663
        pop     ebx
6273 pathoswith 3664
        mov     ecx, [ebp+NTFS.attr_offs]
6151 pathoswith 3665
        cmp     byte [ecx+nonResidentFlag], 0
3666
        jz      .done
3667
        mov     ecx, [ebx+12]
3668
        test    ecx, ecx
3669
        jz      .done
5994 pathoswith 3670
        mov     eax, [ebx+4]
3671
        mov     edx, [ebx+8]
3672
        mov     esi, [ebx+16]
3673
        shrd    eax, edx, 9
3674
        test    dword[ebx+4], 1FFh
3675
        jz      .aligned
6273 pathoswith 3676
        mov     [ebp+NTFS.cur_offs], eax
3677
        mov     [ebp+NTFS.cur_size], 1
3678
        lea     edi, [ebp+NTFS.bitmap_buf]
3679
        mov     [ebp+NTFS.cur_buf], edi
5994 pathoswith 3680
        call    ntfs_read_attr.continue
6019 pathoswith 3681
        jc      ntfsDevice
5994 pathoswith 3682
        mov     eax, [ebx+4]
3683
        and     eax, 1FFh
3684
        add     edi, eax
6273 pathoswith 3685
        sub     eax, [ebp+NTFS.cur_read]
5994 pathoswith 3686
        neg     eax
3687
        push    ecx
3688
        cmp     ecx, eax
3689
        jb      @f
3690
        mov     ecx, eax
3691
@@:
3692
        sub     [esp], ecx
3693
        rep movsb
3694
        push    ebx
6273 pathoswith 3695
        mov     eax, [ebp+NTFS.LastRead]
3696
        lea     ebx, [ebp+NTFS.bitmap_buf]
5994 pathoswith 3697
        mov     ecx, 1
3698
        xor     edx, edx
3699
        call    fs_write64_app
3700
        pop     ebx
3701
        pop     ecx
3702
        test    ecx, ecx
6151 pathoswith 3703
        jz      .done
5994 pathoswith 3704
        mov     eax, [ebx+4]
3705
        mov     edx, [ebx+8]
3706
        shrd    eax, edx, 9
3707
        inc     eax
3708
.aligned:
3709
        push    ecx
3710
        shr     ecx, 9
6273 pathoswith 3711
        mov     [ebp+NTFS.cur_offs], eax
3712
        mov     [ebp+NTFS.cur_size], ecx
3713
        mov     [ebp+NTFS.cur_buf], esi
5994 pathoswith 3714
        add     eax, ecx
3715
        push    eax
6273 pathoswith 3716
        mov     [ebp+NTFS.bWriteAttr], 1
5994 pathoswith 3717
        call    ntfs_read_attr.continue
6273 pathoswith 3718
        mov     [ebp+NTFS.bWriteAttr], 0
3719
        pop     [ebp+NTFS.cur_offs]
5994 pathoswith 3720
        pop     ecx
6019 pathoswith 3721
        jc      ntfsDevice
5994 pathoswith 3722
        and     ecx, 1FFh
6151 pathoswith 3723
        jz      .done
6273 pathoswith 3724
        add     esi, [ebp+NTFS.cur_read]
3725
        mov     [ebp+NTFS.cur_size], 1
3726
        lea     edi, [ebp+NTFS.bitmap_buf]
3727
        mov     [ebp+NTFS.cur_buf], edi
5994 pathoswith 3728
        call    ntfs_read_attr.continue
6019 pathoswith 3729
        jc      ntfsDevice
5994 pathoswith 3730
        rep movsb
3731
        push    ebx
6273 pathoswith 3732
        mov     eax, [ebp+NTFS.LastRead]
3733
        lea     ebx, [ebp+NTFS.bitmap_buf]
5994 pathoswith 3734
        mov     ecx, 1
3735
        xor     edx, edx
3736
        call    fs_write64_app
3737
        pop     ebx
6151 pathoswith 3738
.done:
5994 pathoswith 3739
        mov     ebx, [ebx+12]
6019 pathoswith 3740
        jmp     ntfsDone
3741
 
3742
;----------------------------------------------------------------
3743
ntfs_Delete:
3744
        cmp     byte [esi], 0
3745
        jnz     @f
6418 pathoswith 3746
        xor     ebx, ebx
6019 pathoswith 3747
        movi    eax, ERROR_ACCESS_DENIED
5994 pathoswith 3748
        ret
6401 pathoswith 3749
 
6019 pathoswith 3750
@@:
3751
        call    ntfs_lock
3752
        stdcall ntfs_find_lfn, [esp+4]
3753
        jc      ntfsNotFound
6273 pathoswith 3754
        cmp     [ebp+NTFS.cur_iRecord], 16
6019 pathoswith 3755
        jc      ntfsDenied
6420 pathoswith 3756
        test    byte [eax+fileFlags], 1
3757
        jnz     ntfsDenied
6273 pathoswith 3758
        cmp     [ebp+NTFS.fragmentCount], 1
6019 pathoswith 3759
        jnz     ntfsUnsupported     ; record fragmented
6418 pathoswith 3760
        mov     ebx, [eax+directoryRecordReference]
3761
        mov     [ebp+NTFS.newRecord], ebx
3762
        mov     bx, [eax+fileReferenceReuse]
3763
        mov     [ebp+NTFS.indexPointer], esi
3764
        mov     eax, [ebp+NTFS.cur_iRecord]
3765
        shr     eax, 3
3766
        cmp     eax, [ebp+NTFS.mftBitmapSize]
6019 pathoswith 3767
        jnc     ntfsUnsupported
6418 pathoswith 3768
; examine file record
3769
        mov     [ebp+NTFS.cur_attr], 0x80   ; file?
3770
        mov     [ebp+NTFS.cur_offs], 0
3771
        mov     [ebp+NTFS.cur_size], 0
3772
        call    ntfs_read_attr
3773
        jnc     @f
3774
        xor     eax, eax
3775
        push    ebx eax eax eax eax
3776
        mov     [esp+12], esp
3777
        push    eax
3778
        mov     ebx, esp
3779
        mov     [ebp+NTFS.cur_attr], 0x90   ; folder?
3780
        call    ntfs_ReadFolder.doit
3781
        mov     edx, [esp+12]
3782
        add     esp, 20
3783
        pop     ebx
3784
        test    eax, eax
3785
        jnz     .ret
3786
        cmp     edx, 2
3787
        jnz     ntfsDenied      ; folder is not empty
6401 pathoswith 3788
        mov     [ebp+NTFS.cur_attr], 0xA0
6418 pathoswith 3789
        mov     [ebp+NTFS.cur_offs], 0
3790
        mov     [ebp+NTFS.cur_size], 0
6401 pathoswith 3791
        call    ntfs_read_attr.newAttribute
6418 pathoswith 3792
        jc      .deleteFileRecord
6401 pathoswith 3793
@@:
6418 pathoswith 3794
        mov     esi, [ebp+NTFS.frs_buffer]
3795
        cmp     word [esi+baseRecordReuse], 0
3796
        jnz     ntfsUnsupported     ; auxiliary record
3797
        cmp     word [esi+reuseCounter], bx
3798
        jnz     .backToIndex        ; broken index
6420 pathoswith 3799
        test    byte [esi+recordFlags], 1
6418 pathoswith 3800
        jz      .writeBitmapMFT     ; record deleted
3801
        cmp     byte [esi+hardLinkCounter], 3
3802
        jnc     ntfsUnsupported
3803
        mov     esi, [ebp+NTFS.attr_offs]
3804
        cmp     byte [esi+nonResidentFlag], 0
3805
        jz      .deleteFileRecord
3806
        movzx   eax, byte [esi+dataRunsOffset]
6401 pathoswith 3807
        add     esi, eax
6418 pathoswith 3808
        xor     edi, edi
3809
        sub     esp, 16
3810
@@:
3811
        call    ntfs_decode_mcb_entry
3812
        jnc     @f
3813
        cmp     dword[esp+8], 0
6401 pathoswith 3814
        jz      @b
6418 pathoswith 3815
        add     edi, [esp+8]
3816
        mov     ebx, [esp]
3817
        call    ntfsSpaceFree
3818
        jnc     @b
3819
@@:
3820
        add     esp, 16
3821
.deleteFileRecord:
3822
        mov     ebx, [ebp+NTFS.frs_buffer]
3823
        mov     byte [ebx+recordFlags], 0
3824
        mov     edx, [ebp+NTFS.mftLastRead]
3825
        call    writeRecord
3826
.writeBitmapMFT:
3827
        mov     eax, [ebp+NTFS.cur_iRecord]
3828
        mov     ecx, eax
3829
        shr     eax, 3
3830
        and     ecx, 7
3831
        mov     edi, [ebp+NTFS.mftBitmapBuffer]
3832
        btr     [edi+eax], ecx
3833
        shr     eax, 9
3834
        mov     ebx, eax
3835
        shl     ebx, 9
3836
        add     eax, [ebp+NTFS.mftBitmapLocation]
3837
        add     ebx, edi
3838
        mov     ecx, 1
3839
        xor     edx, edx
3840
        call    fs_write64_sys
3841
.backToIndex:
3842
        mov     eax, [ebp+NTFS.newRecord]
3843
        mov     [ebp+NTFS.cur_iRecord], eax
3844
        mov     esi, [ebp+NTFS.indexPointer]
3845
        stdcall ntfs_find_lfn.doit2, 0
3846
        jc      ntfsFail
3847
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
3848
        mov     byte [ebx], 0
3849
        mov     ebx, [ebp+NTFS.LastRead]
3850
        mov     [ebp+NTFS.nodeLastRead], ebx
3851
        xor     ebx, ebx
3852
        test    byte [eax+indexFlags], 1
3853
        jz      .deleteIndex    ; no subnode
3854
        mov     edi, eax
3855
        call    .findSubindex
3856
        jc      ntfsFail
6401 pathoswith 3857
        movzx   edx, word [edi+indexAllocatedSize]
6418 pathoswith 3858
        test    esi, esi
3859
        jz      @f
6401 pathoswith 3860
        sub     edx, eax
3861
        sub     edx, 8
6418 pathoswith 3862
@@:
3863
        mov     eax, edi
6401 pathoswith 3864
        mov     ebx, esi
3865
        jmp     @f
3866
 
3867
.deleteIndex:
3868
        movzx   edx, word [eax+indexAllocatedSize]
6107 pathoswith 3869
        mov     ecx, [eax+fileRecordReference]
3870
        cmp     [eax+edx+fileRecordReference], ecx
3871
        jnz     @f
3872
        add     dx, [eax+edx+indexAllocatedSize]
3873
@@:
6019 pathoswith 3874
        mov     edi, [ebp+NTFS.cur_index_buf]
3875
        cmp     dword [edi], 'INDX'
3876
        jz      .indexRecord
6418 pathoswith 3877
        sub     eax, edi
6401 pathoswith 3878
        mov     edi, [ebp+NTFS.indexRoot]
6019 pathoswith 3879
        sub     [edi+sizeWithHeader], edx
3880
        sub     [edi+sizeWithoutHeader], edx
6418 pathoswith 3881
        movzx   ecx, byte [edi+attributeOffset]
6019 pathoswith 3882
        add     edi, ecx
6418 pathoswith 3883
        add     eax, edi
6273 pathoswith 3884
        sub     [edi+rootNode+nodeRealSize], edx
3885
        sub     [edi+rootNode+nodeAllocatedSize], edx
6418 pathoswith 3886
        mov     edi, [ebp+NTFS.frs_buffer]
3887
        sub     [edi+recordRealSize], edx
3888
        mov     ecx, [edi+recordRealSize]
3889
        cmp     [edi+recordAllocatedSize], ecx
6019 pathoswith 3890
        jmp     @f
2288 clevermous 3891
 
6019 pathoswith 3892
.indexRecord:
6401 pathoswith 3893
        add     edi, recordNode
3894
        sub     [edi+nodeRealSize], edx
3895
        mov     ecx, [edi+nodeRealSize]
3896
        cmp     [edi+nodeAllocatedSize], ecx
6418 pathoswith 3897
@@:
6401 pathoswith 3898
        jc      ntfsUnsupported
6418 pathoswith 3899
        add     ecx, edi
6019 pathoswith 3900
        sub     ecx, eax
3901
        mov     esi, eax
3902
        add     esi, edx
3903
        mov     edi, eax
6401 pathoswith 3904
        test    edx, edx
3905
        jns     @f
3906
        neg     edx
3907
        add     edx, ecx
3908
        sub     edx, 4
3909
        add     esi, edx
3910
        add     edi, edx
3911
        std
3912
@@:
3913
        jz      @f
3914
        shr     ecx, 2
6019 pathoswith 3915
        rep movsd
6401 pathoswith 3916
        cld
3917
@@:
3918
        test    ebx, ebx
6418 pathoswith 3919
        jz      .done
6401 pathoswith 3920
; copy index from the subnode to replace deleted pointing index
3921
        movzx   ecx, word [ebx+indexAllocatedSize]
3922
        mov     edx, ecx
6418 pathoswith 3923
        test    byte [ebx+indexFlags], 1
3924
        jz      @f
3925
        sub     ecx, 8
3926
        movzx   edi, word [ebx+edx+indexAllocatedSize]
3927
        add     edi, edx
3928
        mov     esi, [ebx+ecx]
3929
        mov     [ebx+edi-8], esi
3930
        mov     [ebx+indexAllocatedSize], cx
3931
@@:
6401 pathoswith 3932
        shr     ecx, 2
3933
        mov     esi, ebx
3934
        mov     edi, eax
3935
        rep movsd
3936
        add     word [eax+indexAllocatedSize], 8
3937
        mov     byte [eax+indexFlags], 1
6418 pathoswith 3938
        mov     edi, [ebp+NTFS.secondIndexBuffer]
6401 pathoswith 3939
        mov     eax, ebx
3940
        xor     ebx, ebx
3941
        jmp     .indexRecord
3942
 
6418 pathoswith 3943
.done:
6408 pathoswith 3944
        mov     ebx, [ebp+NTFS.frs_buffer]
6418 pathoswith 3945
        mov     edx, [ebp+NTFS.rootLastRead]
6019 pathoswith 3946
        call    writeRecord
6408 pathoswith 3947
        mov     ebx, [ebp+NTFS.cur_index_buf]
6418 pathoswith 3948
        cmp     dword [ebx], 'INDX'
3949
        jnz     @f
6408 pathoswith 3950
        mov     edx, [ebp+NTFS.nodeLastRead]
6401 pathoswith 3951
        call    writeRecord
6418 pathoswith 3952
@@:
6408 pathoswith 3953
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
3954
        cmp     byte [ebx], 0
6401 pathoswith 3955
        jz      ntfsDone
6418 pathoswith 3956
        mov     edx, [ebp+NTFS.LastRead]
6019 pathoswith 3957
        call    writeRecord
6080 pathoswith 3958
        jmp     ntfsDone
6019 pathoswith 3959
 
6418 pathoswith 3960
.findSubindex:
3961
; in: eax -> index
3962
;   out:
3963
; CF=1 -> error
3964
; esi=0 -> subnode deleted
3965
; esi -> replacement index
3966
; eax = index effective size
3967
        movzx   edx, word [eax+indexAllocatedSize]
3968
        mov     eax, [eax+edx-8]
3969
        mov     edx, [ebp+NTFS.cur_size]
3970
        push    edx
3971
        cmp     edx, [ebp+NTFS.cur_subnode_size]
3972
        jz      @f
3973
        mul     [ebp+NTFS.sectors_per_cluster]
3974
@@:
3975
        mov     [ebp+NTFS.cur_attr], 0xA0
3976
        mov     [ebp+NTFS.cur_offs], eax
3977
        push    eax
3978
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
3979
        mov     esi, ebx
3980
        mov     [ebp+NTFS.cur_buf], ebx
3981
        call    ntfs_read_attr.newAttribute
3982
        pop     [ebp+NTFS.cur_offs]
3983
        pop     eax
3984
        jc      .ret
3985
        cmp     dword [esi], 'INDX'
3986
        stc
3987
        jnz     .ret
3988
        mov     [ebp+NTFS.cur_size], eax
3989
        shl     eax, 9
3990
        call    ntfs_restore_usa
3991
        jc      .ret
3992
        add     esi, recordNode
3993
        add     esi, [esi+indexOffset]
3994
        test    byte [esi+indexFlags], 2
3995
        jnz     .emptyNode
3996
        cmp     [ebp+NTFS.fragmentCount], 1
3997
        stc
3998
        jnz     .ret    ; record fragmented
3999
        xor     eax, eax
4000
@@:
4001
        add     esi, eax
4002
        mov     ax, [esi+indexAllocatedSize]
4003
        test    byte [esi+eax+indexFlags], 2
4004
        jz      @b
4005
        test    byte [esi+indexFlags], 1
4006
        jz      .ret
4007
        add     eax, esi
4008
        push    esi
4009
        push    [ebp+NTFS.cur_offs]
4010
        call    .findSubindex
4011
        pop     [ebp+NTFS.cur_offs]
4012
        pop     edx
4013
        jc      .ret
4014
        test    esi, esi
4015
        jnz     .ret
4016
        mov     esi, edx
4017
        mov     ebx, [ebp+NTFS.secondIndexBuffer]
4018
        mov     [ebp+NTFS.cur_buf], ebx
4019
        push    [ebp+NTFS.cur_size]
4020
        call    ntfs_read_attr.continue
4021
        pop     eax
4022
        jc      .ret
4023
        shl     eax, 9
4024
        call    ntfs_restore_usa
4025
        jc      .ret
4026
        movzx   eax, word [esi+indexAllocatedSize]
4027
        sub     eax, 8
4028
.ret:
4029
        ret
4030
 
4031
.emptyNode:
4032
        test    byte [esi+indexFlags], 1
4033
        jz      @f
4034
        mov     eax, esi
4035
        push    [ebp+NTFS.cur_offs]
4036
        call    .findSubindex
4037
        pop     [ebp+NTFS.cur_offs]
4038
        jc      .ret
4039
        test    esi, esi
4040
        jnz     .ret
4041
@@:         ; delete node
4042
        mov     esi, [ebp+NTFS.attr_offs]
4043
        add     esi, [esi+sizeWithHeader]
4044
        cmp     byte [esi], 0xB0
4045
        stc
4046
        jnz     .ret
4047
        movzx   eax, byte [esi+attributeOffset]
4048
        add     esi, eax
4049
        mov     eax, [ebp+NTFS.cur_offs]
4050
        xor     edx, edx
4051
        div     [ebp+NTFS.cur_size]
4052
        mov     edx, eax
4053
        shr     eax, 3
4054
        and     edx, 7
4055
        btr     [esi+eax], edx
4056
        mov     esi, [ebp+NTFS.secondIndexBuffer]
4057
        mov     byte [esi], 0
4058
        xor     esi, esi
4059
        ret
4060
 
5954 pathoswith 4061
;----------------------------------------------------------------
3742 clevermous 4062
ntfs_SetFileEnd:
6107 pathoswith 4063
        cmp     byte [esi], 0
4064
        jnz     @f
4065
        xor     ebx, ebx
4066
        movi    eax, ERROR_ACCESS_DENIED
4067
        ret
4068
@@:
4069
        call    ntfs_lock
4070
        stdcall ntfs_find_lfn, [esp+4]
4071
        jc      ntfsNotFound
6273 pathoswith 4072
        cmp     [ebp+NTFS.cur_iRecord], 16
6107 pathoswith 4073
        jc      ntfsDenied
6420 pathoswith 4074
        test    dword [eax+fileFlags], 10000001h
4075
        jnz     ntfsDenied
6273 pathoswith 4076
        cmp     [ebp+NTFS.fragmentCount], 1
6107 pathoswith 4077
        jnz     ntfsUnsupported     ; record fragmented
6151 pathoswith 4078
; edit directory node
6107 pathoswith 4079
        mov     edi, [ebp+NTFS.cur_index_buf]
4080
        cmp     dword [edi], 'INDX'
4081
        jz      @f
4082
        mov     esi, [ebp+NTFS.frs_buffer]
4083
        mov     ecx, [esi+recordRealSize]
4084
        shr     ecx, 2
4085
        rep movsd
6273 pathoswith 4086
        mov     esi, [ebp+NTFS.attr_offs]
6107 pathoswith 4087
        mov     cl, [esi+attributeOffset]
4088
        sub     esi, [ebp+NTFS.frs_buffer]
4089
        add     eax, ecx
4090
        add     eax, esi
4091
@@:
6420 pathoswith 4092
        mov     edi, eax
4093
        mov     eax, [ebx+4]
6107 pathoswith 4094
        mov     edx, [ebx+8]
6420 pathoswith 4095
        mov     [edi+fileRealSize], eax
4096
        mov     [edi+fileRealSize+4], edx
4097
        push    edx eax ebx
4098
        call    ntfsGetTime
4099
        mov     [edi+fileModified], eax
4100
        mov     [edi+fileModified+4], edx
4101
        mov     [edi+recordModified], eax
4102
        mov     [edi+recordModified+4], edx
4103
        mov     [edi+fileAccessed], eax
4104
        mov     [edi+fileAccessed+4], edx
4105
        pop     ebx ecx edx
6273 pathoswith 4106
        mov     eax, [ebp+NTFS.LastRead]
6107 pathoswith 4107
        mov     [ebp+NTFS.nodeLastRead], eax
6273 pathoswith 4108
        mov     [ebp+NTFS.cur_attr], 0x80
4109
        mov     [ebp+NTFS.cur_offs], 0
4110
        mov     [ebp+NTFS.cur_size], 0
6107 pathoswith 4111
        call    ntfs_read_attr
4112
        jc      ntfsFail
6420 pathoswith 4113
        mov     esi, edi
4114
        mov     edi, [ebp+NTFS.frs_buffer]
4115
        cmp     word [edi+baseRecordReuse], 0
4116
        jnz     ntfsUnsupported     ; auxiliary record
4117
        mov     al, [edi+attributeOffset]
4118
        add     edi, eax
4119
        mov     al, [edi+attributeOffset]
4120
        add     edi, eax
6107 pathoswith 4121
        mov     eax, ecx
6420 pathoswith 4122
        mov     ecx, 6
4123
        add     esi, fileModified
4124
        add     edi, 8
4125
        rep movsd
6273 pathoswith 4126
        mov     ecx, [ebp+NTFS.attr_offs]
6151 pathoswith 4127
        cmp     word [ecx+attributeFlags], 0
4128
        jnz     ntfsUnsupported
4129
        cmp     byte [ecx+nonResidentFlag], 0
4130
        jz      .resizeAttribute
6107 pathoswith 4131
        cmp     [ecx+attributeRealSize+4], edx
4132
        jnz     .resizeAttribute
4133
        cmp     [ecx+attributeRealSize], eax
4134
        jnc     .resizeAttribute
4135
        mov     eax, [ecx+attributeRealSize]
4136
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 4137
        mov     [ebp+NTFS.cur_size], ecx
6107 pathoswith 4138
        shl     ecx, 9
4139
        div     ecx
4140
        test    edx, edx
4141
        jz      .aligned
4142
        push    edx
4143
        push    ecx
4144
        mul     [ebp+NTFS.sectors_per_cluster]
6273 pathoswith 4145
        mov     [ebp+NTFS.cur_offs], eax
6107 pathoswith 4146
        stdcall kernel_alloc, ecx
4147
        pop     ecx
4148
        pop     edi
6405 pathoswith 4149
        mov     esi, eax
6107 pathoswith 4150
        sub     ecx, edi
4151
        add     edi, eax
6273 pathoswith 4152
        mov     [ebp+NTFS.cur_buf], eax
6107 pathoswith 4153
        call    ntfs_read_attr.continue
4154
        jc      @f
4155
        xor     eax, eax
4156
        rep stosb
4157
        push    ebx
6273 pathoswith 4158
        mov     eax, [ebp+NTFS.LastRead]
6405 pathoswith 4159
        mov     ebx, esi
6107 pathoswith 4160
        mov     ecx, [ebp+NTFS.sectors_per_cluster]
4161
        xor     edx, edx
4162
        call    fs_write64_app
4163
        pop     ebx
4164
@@:
6405 pathoswith 4165
        stdcall kernel_free, esi
6107 pathoswith 4166
.aligned:
4167
        mov     eax, [ebx+4]
4168
        mov     edx, [ebx+8]
4169
.resizeAttribute:
4170
        call    resizeAttribute
4171
        jc      ntfsError
6408 pathoswith 4172
        mov     ebx, [ebp+NTFS.frs_buffer]
4173
        mov     edx, [ebp+NTFS.mftLastRead]
6107 pathoswith 4174
        call    writeRecord     ; file
6408 pathoswith 4175
        mov     ebx, [ebp+NTFS.cur_index_buf]
4176
        mov     edx, [ebp+NTFS.nodeLastRead]
6107 pathoswith 4177
        call    writeRecord     ; directory
4178
        call    ntfsSpaceClean
4179
        jmp     ntfsDone
4180
 
6420 pathoswith 4181
ntfsReadCMOS:
4182
        out     70h, al
4183
        in      al, 71h
4184
        xor     ah, ah
4185
        shl     ax, 4
4186
        shr     al, 4
4187
        aad
2288 clevermous 4188
        ret
4189
 
6420 pathoswith 4190
ntfsGetTime:
4191
        mov     al, 7
4192
        call    ntfsReadCMOS
4193
        ror     eax, 8
4194
        mov     al, 8
4195
        call    ntfsReadCMOS
4196
        ror     eax, 8
4197
        mov     al, 9
4198
        call    ntfsReadCMOS
4199
        add     eax, 2000
4200
        ror     eax, 16
4201
        push    eax
4202
        xor     eax, eax
4203
        call    ntfsReadCMOS
4204
        ror     eax, 8
4205
        mov     al, 2
4206
        call    ntfsReadCMOS
4207
        ror     eax, 8
4208
        mov     al, 4
4209
        call    ntfsReadCMOS
4210
        ror     eax, 16
4211
        push    eax
4212
        mov     esi, esp
4213
        add     esp, 8
4214
ntfsCalculateTime:
4215
; in: esi -> data block
4216
; out: edx:eax = time
4217
        movzx   eax, word [esi+6]
4218
        sub     eax, 2001
4219
        jnc     @f
4220
        xor     eax, eax
4221
@@:
4222
        mov     edx, months
4223
        mov     ebx, eax
4224
        inc     eax
4225
        test    eax, 3
4226
        jnz     @f
4227
        add     edx, 12
4228
@@:
4229
        movzx   eax, byte [esi+5]
4230
        dec     eax
4231
        xor     ecx, ecx
4232
@@:
4233
        dec     eax
4234
        js      @f
4235
        add     cl, [edx+eax]
4236
        adc     ch, 0
4237
        jmp     @b
4238
@@:
4239
        mov     eax, ebx
4240
        mov     edx, 365
4241
        mul     edx
4242
        shr     ebx, 2
4243
        add     eax, ebx
4244
        add     eax, ecx
4245
        mov     bl, [esi+4]
4246
        add     eax, ebx
4247
        add     eax, 400*365+100-4
4248
        mov     dl, 24
4249
        mul     edx
4250
        mov     bl, [esi+2]
4251
        add     eax, ebx
4252
        mov     ecx, 60
4253
        mul     ecx
4254
        mov     bl, [esi+1]
4255
        add     eax, ebx
4256
        mul     ecx
4257
        mov     bl, [esi]
4258
        add     ebx, eax
4259
        mov     eax, edx
4260
        mov     ecx, 10000000
4261
        mul     ecx
4262
        xchg    eax, ebx
4263
        mul     ecx
4264
        add     edx, ebx
4265
        ret
4266
 
3742 clevermous 4267
;----------------------------------------------------------------
6420 pathoswith 4268
ntfs_SetFileInfo:
2288 clevermous 4269
        cmp     byte [esi], 0
4270
        jnz     @f
5994 pathoswith 4271
        movi    eax, ERROR_UNSUPPORTED_FS
2288 clevermous 4272
        ret
4273
@@:
3742 clevermous 4274
        call    ntfs_lock
4275
        stdcall ntfs_find_lfn, [esp+4]
6420 pathoswith 4276
        jnc     @f
3742 clevermous 4277
        test    eax, eax
6019 pathoswith 4278
        jz      ntfsFail
4279
        jmp     ntfsNotFound
2288 clevermous 4280
 
6420 pathoswith 4281
@@:
4282
        cmp     [ebp+NTFS.fragmentCount], 1
4283
        jnz     ntfsUnsupported     ; record fragmented
4284
        mov     esi, [ebp+NTFS.cur_index_buf]
4285
        cmp     dword [esi], 'INDX'
4286
        jz      @f
4287
        sub     eax, esi
4288
        mov     esi, [ebp+NTFS.indexRoot]
4289
        movzx   edx, byte [esi+attributeOffset]
4290
        add     eax, esi
4291
        add     eax, edx
4292
@@:
4293
        mov     esi, [ebx+16]
4294
        mov     edi, eax
4295
        mov     eax, [esi]
4296
        and     eax, 27h
4297
        and     byte [edi+fileFlags], -28h
4298
        or      [edi+fileFlags], al
4299
        add     esi, 8
4300
        call    ntfsCalculateTime
4301
        mov     [edi+fileCreated], eax
4302
        mov     [edi+fileCreated+4], edx
4303
        add     esi, 8
4304
        call    ntfsCalculateTime
4305
        mov     [edi+fileAccessed], eax
4306
        mov     [edi+fileAccessed+4], edx
4307
        add     esi, 8
4308
        call    ntfsCalculateTime
4309
        mov     [edi+fileModified], eax
4310
        mov     [edi+fileModified+4], edx
4311
        mov     ebx, [ebp+NTFS.cur_index_buf]
4312
        cmp     dword [ebx], 'INDX'
4313
        jz      @f
4314
        mov     ebx, [ebp+NTFS.frs_buffer]
4315
@@:
4316
        mov     edx, [ebp+NTFS.LastRead]
4317
        call    writeRecord
4318
        jmp     ntfsDone
4319
 
6019 pathoswith 4320
ntfsUnsupported:
4321
        push    ERROR_UNSUPPORTED_FS
6080 pathoswith 4322
        jmp     ntfsOut
6019 pathoswith 4323
ntfsDevice:
4324
        push    ERROR_DEVICE
4325
        jmp     ntfsOut
4326
ntfsNotFound:
4327
        push    ERROR_FILE_NOT_FOUND
4328
        jmp     ntfsOut
4329
ntfsDenied:
4330
        push    ERROR_ACCESS_DENIED
4331
        jmp     ntfsOut
4332
ntfsFail:
4333
        push    ERROR_FS_FAIL
4334
        jmp     ntfsOut
6080 pathoswith 4335
ntfsDiskFull:
4336
        push    ERROR_DISK_FULL
4337
        jmp     ntfsOut
6414 pathoswith 4338
ntfsErrorPop5:
4339
        pop     ebx
4340
        pop     ebx
6340 pathoswith 4341
ntfsErrorPop3:
4342
        pop     ebx
6107 pathoswith 4343
ntfsErrorPop2:
4344
        pop     ebx
4345
ntfsErrorPop:
4346
        pop     ebx
6080 pathoswith 4347
ntfsError:
4348
        push    eax
4349
ntfsOut:
4350
        call    ntfs_unlock
4351
        xor     ebx, ebx
4352
        pop     eax
4353
        ret