-
Notifications
You must be signed in to change notification settings - Fork 4
/
hwGetRate.c
2020 lines (1693 loc) · 64.2 KB
/
hwGetRate.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "../libusb_test/usb.h"
/*
0x3fc6 (Fireface UC) begins @ line 580
*/
uint32_t hwGetRate( libusb_device_handle *dev, /*uint16_t productId,*/ uint8_t /*dx*/ unknownArg )
{
uint16_t productId = 0x3fc6;
int rc = 0;
uint32_t eax = 0;
uint32_t ecx = 0;
/*
================ B E G I N N I N G O F P R O C E D U R E ================
hwGetRate ( IOUSBDevice* rdi,
unsigned short rsi, productId
uint8_t rdx, unknownArg (bool ?)
)
0x00001100 push rbp
0x00001101 mov rbp, rsp
0x00001104 push r15
0x00001106 push r14
0x00001108 push rbx
0x00001109 sub rsp, 0x68
*/
/*
0x0000110d lea eax, qword [ds:rsi+0xffffffffffffc036]
0x00001113 cmp ax, 0x3
0x00001117 mov bx, dx
0x0000111a mov r14, rdi
0x0000111d jb 0x112f
0x0000111f mov r15w, si
0x00001123 cmp r15w, 0x3fc3
0x00001129 jne 0x1238
*/
// uint16_t bx = dx;
// uint64_t r14 = rdi;
// uint16_t r15w = productId;
if ( ((uint32_t)(productId + 0xffffffffffffc036) < 0x3) || (productId == 0x3fc3) ) /* 0x3fc6 false */
{
/*
0x0000112f lea r15, qword [ss:rbp+var_28] ; XREF 1
0x00001133 mov qword [ss:rsp+0x8], r15 ; argument #8 (wLenDone) for method
0x00001138 mov dword [ss:rsp], 0x1 ; argument #7 (bmRequestType) for method
0x0000113f mov esi, 0x11 ; argument #2 (bRequest) for method
0x00001144 xor edx, edx ; argument #3 (wValue) for method
0x00001146 lea r8, qword [ss:rbp+var_38] ; argument #5 (pData*) for method
0x0000114a mov r9d, 0x10 ; argument #6 (wLength) for method
0x00001150 mov rdi, r14 ; argument #1 (IOUSBDevice*) for method
0x00001153 xor ecx, ecx ; argument #4 (wIndex) for method
0x00001155 call Usb_vendor_device_request()
0x0000115a test eax, eax
0x0000115c jne 0x1692
*/
unsigned char data_1[16]; // rbp+var_38
memset( data_1, 0x00, 16 ); // calm down GCC
// uint32_t num_tx_bytes_1 = 0;
// 0xc0 0x11 (17) 0x0000 0x0000 0x10
// rc = Usb_vendor_device_request();
if ( rc != 0 )
{
return 0;
}
/*
0x00001162 mov eax, dword [ss:rbp+var_38]
0x00001165 shr eax, 0xa
0x00001168 and eax, 0x7
0x0000116b lea ecx, qword [ds:rax+0xffffffffffffffff]
0x0000116e cmp ecx, 0x5
0x00001171 jb 0x117c
0x00001173 test bx, bx
0x00001176 je 0x1692
*/
eax = (*(uint32_t *)data_1) >> 0xa;
eax &= 0x7;
if ( (uint32_t)(eax + 0xffffffffffffffff) >= 0x5 && unknownArg == 0 )
{
return 0;
}
/*
0x0000117c cmp eax, 0x1 ; XREF 1
0x0000117f je 0x11bd
*/
if ( eax == 1 )
{
/*
0x000011bd test byte [ss:rbp+var_2C], 0x80 ; XREF 1
0x000011c1 jne 0x11e6
*/
if ( *(data_1 + 12) == 0x80 )
{
/*
0x000011c3 mov r14d, dword [ss:rbp+var_34]
0x000011c7 and r14d, 0xf
0x000011cb cmp r14d, 0xb
0x000011cf ja 0x1692
*/
if ( ((*(uint32_t *)(data_1 + 4)) & 0xf) > 0xb )
{
return 0;
}
/*
0x000011d5 lea r15, qword [ds:0x16cc]
0x000011dc movsxd r14, dword [ds:r15+r14*4]
0x000011e0 add r14, r15 ; XREF 2
0x000011e3 jmp r14 ; switch statement with 12 cases
*/
// switch ( /*TODO*/ ) return ?
}
else
{
/*
// TODO
*/
}
/*
0x00001181 cmp eax, 0x2
0x00001184 jne 0x11e6
*/
}
else if ( eax == 0x2 )
{
// THAT PART ALWAYS RETURN
/*
0x00001186 mov r14d, dword [ss:rbp+var_34]
0x0000118a shr r14d, 0x4
0x0000118e and r14d, 0xf
0x00001192 cmp r14d, 0xb
0x00001196 ja 0x1692
*/
if ( ((*(uint32_t*)(data_1 + 4) >> 0x4) & 0xf) > 0xb )
{
return 0;
}
/*
0x0000119c lea r15, qword [ds:0x169c]
0x000011a3 movsxd r14, dword [ds:r15+r14*4]
0x000011a7 add r14, r15
0x000011aa jmp r14 ; switch statement with 12 cases
*/
// switch ( /*TODO*/ ) return ?;
}
/*
; 0x000011ad mov eax, 0xac44 ; case 1, XREF 10
; 0x000011b2 add rsp, 0x68 ; XREF 11
; 0x000011b6 pop rbx
; 0x000011b7 pop r14
; 0x000011b9 pop r15
; 0x000011bb pop rbp
; 0x000011bc ret
; 0x000011bd test byte [ss:rbp+var_2C], 0x80 ; XREF 1
; 0x000011c1 jne 0x11e6
; 0x000011c3 mov r14d, dword [ss:rbp+var_34]
; 0x000011c7 and r14d, 0xf
; 0x000011cb cmp r14d, 0xb
; 0x000011cf ja 0x1692
; 0x000011d5 lea r15, qword [ds:0x16cc]
; 0x000011dc movsxd r14, dword [ds:r15+r14*4]
; 0x000011e0 add r14, r15 ; XREF 2
; 0x000011e3 jmp r14 ; switch statement with 12 cases
*/
/*
0x000011e6 mov ecx, dword [ss:rbp+var_34] ; XREF 2
0x000011e9 mov eax, ecx ; XREF 1
0x000011eb and eax, 0x300000
0x000011f0 cmp eax, 0xfffff
0x000011f5 jg 0x1202
*/
ecx = *(uint32_t*)(data_1 + 4);
eax = ecx & 0x300000;
if ( eax <= 0xfffff )
{
/*
0x000011f7 test eax, eax
0x000011f9 jne 0x121b
*/
if ( eax != 0 )
{
// THAT PART ALWAYS RETURN
/*
0x0000121b xor eax, eax ; XREF 1
0x0000121d jmp 0x1224
0x00001224 test ecx, 0x800000 ; XREF 3
0x0000122a je 0x13f9
*/
eax = 0;
if ( ecx == 0x800000 )
{
/*
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
ecx >>= 0x16;
ecx &= 0x1;
eax <<= ecx;
return eax;
}
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
else
{
// THAT PART ALWAYS RETURN
/*
0x000011fb mov eax, 0x7d00
0x00001200 jmp 0x1224
*/
eax = 0x7d00;
/*
0x00001224 test ecx, 0x800000 ; XREF 3
0x0000122a je 0x13f9
*/
if ( ecx == 0x800000 )
{
/*
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
ecx >>= 0x16;
ecx &= 0x1;
eax <<= ecx;
return eax;
}
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
}
/*
0x00001202 cmp eax, 0x100000 ; XREF 1
0x00001207 je 0x13ef
*/
if ( eax == 0x100000 )
{
// THAT PART ALWAYS RETURN
/*
0x000013ef mov eax, 0xac44 ; XREF 1
0x000013f4 jmp 0x1224
*/
eax = 0xac44;
/*
0x00001224 test ecx, 0x800000 ; XREF 3
0x0000122a je 0x13f9
*/
if ( ecx == 0x800000 )
{
/*
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
ecx >>= 0x16;
ecx &= 0x1;
eax <<= ecx;
return eax;
}
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
/*
0x0000120d cmp eax, 0x200000
0x00001212 je 0x121f
0x00001214 cmp eax, 0x300000
0x00001219 je 0x121f
*/
if ( eax == 0x200000 || eax == 0x300000 )
{
// THAT PART ALWAYS RETURN
/*
0x0000121f mov eax, 0xbb80 ; XREF 2
0x00001224 test ecx, 0x800000 ; XREF 3
0x0000122a je 0x13f9
*/
eax = 0xbb80;
if ( (ecx & 0x800000) == 0 )
{
/*
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
*/
ecx >>= 0x16;
/*
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
ecx &= 0x1;
eax <<= ecx;
return eax;
}
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
eax <<= 0x2;
return eax;
}
/*
0x0000121b xor eax, eax ; XREF 1
0x0000121d jmp 0x1224
0x00001224 test ecx, 0x800000 ; XREF 3
0x0000122a je 0x13f9
*/
eax = 0;
if ( ecx == 0x800000 )
{
/*
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
ecx >>= 0x16;
ecx &= 0x1;
eax <<= ecx;
return eax;
}
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
/*
; 0x0000121f mov eax, 0xbb80 ; XREF 2
; 0x00001224 test ecx, 0x800000 ; XREF 3
; 0x0000122a je 0x13f9
; 0x00001230 shl eax, 0x2 ; XREF 3
; 0x00001233 jmp 0x11b2
*/
}
/*
0x00001238 mov eax, r15d ; XREF 1
0x0000123b add eax, 0xffffc03f
0x00001240 cmp ax, 0x2
0x00001244 jb 0x1252
0x00001246 cmp r15w, 0x3fc4
0x0000124c jne 0x1348
*/
if ( (((productId + 0xffffc03f) & 0xffff) < 0x2) || (productId == 0x3fc4) ) /* 0x3fc6 false */
{
/*
0x00001252 lea r15, qword [ss:rbp+var_1C] ; XREF 1
0x00001256 mov qword [ss:rsp+0x8], r15 ; argument "var_18" for method
0x0000125b mov dword [ss:rsp], 0x1 ; argument "var_10" for method
0x00001262 mov esi, 0x11 ; argument #2 for method
0x00001267 xor edx, edx ; argument #3 for method
0x00001269 lea r8, qword [ss:rbp+var_48] ; argument #5 for method
0x0000126d mov r9d, 0x10 ; argument #6 for method
0x00001273 mov rdi, r14 ; argument #1 for method
0x00001276 xor ecx, ecx ; argument #4 for method
0x00001278 call Usb_vendor_device_request()
0x0000127d test eax, eax
0x0000127f jne 0x1692
0x00001285 mov eax, dword [ss:rbp+var_48]
0x00001288 shr eax, 0xd
0x0000128b and eax, 0x7
0x0000128e lea ecx, qword [ds:rax+0xffffffffffffffff]
0x00001291 cmp ecx, 0x6
0x00001294 jb 0x129f
0x00001296 test bx, bx
0x00001299 je 0x1692
0x0000129f cmp eax, 0x1 ; XREF=__Z9hwGetRateP11IOUSBDevicett+404
0x000012a2 je 0x12e8
0x000012a4 cmp eax, 0x2
0x000012a7 je 0x12c1
0x000012a9 mov ecx, dword [ss:rbp+var_3C]
0x000012ac mov eax, ecx ; XREF=__Z9hwGetRateP11IOUSBDevicett+494
0x000012ae and eax, 0x18
0x000012b1 cmp eax, 0x7
0x000012b4 jg 0x1313
0x000012b6 test eax, eax
0x000012b8 jne 0x1322
0x000012ba mov eax, 0x7d00
0x000012bf jmp 0x1332
0x000012c1 mov r14d, dword [ss:rbp+var_44] ; XREF=__Z9hwGetRateP11IOUSBDevicett+423
0x000012c5 shr r14d, 0x4
0x000012c9 and r14d, 0xf
0x000012cd cmp r14d, 0xb
0x000012d1 ja 0x1692
0x000012d7 lea r15, qword [ds:0x16fc]
0x000012de movsxd r14, dword [ds:r15+r14*4]
0x000012e2 add r14, r15
0x000012e5 jmp r14 ; switch statement using table at 0x16fc, with 12 cases
0x000012e8 mov ecx, dword [ss:rbp+var_3C] ; XREF=__Z9hwGetRateP11IOUSBDevicett+418
0x000012eb test cl, 0x80
0x000012ee jne 0x12ac
0x000012f0 mov r14d, dword [ss:rbp+var_44]
0x000012f4 and r14d, 0xf
0x000012f8 cmp r14d, 0xb
0x000012fc ja 0x1692
0x00001302 lea r15, qword [ds:0x172c]
0x00001309 movsxd r14, dword [ds:r15+r14*4]
0x0000130d add r14, r15
0x00001310 jmp r14 ; switch statement using table at 0x172c, with 12 cases
0x00001313 cmp eax, 0x8 ; XREF=__Z9hwGetRateP11IOUSBDevicett+436
0x00001316 je 0x1326
0x00001318 cmp eax, 0x10
0x0000131b je 0x132d
0x0000131d cmp eax, 0x18
0x00001320 je 0x132d
0x00001322 xor eax, eax ; XREF=__Z9hwGetRateP11IOUSBDevicett+440
0x00001324 jmp 0x1332
0x00001326 mov eax, 0xac44 ; "Channels", XREF=__Z9hwGetRateP11IOUSBDevicett+534
0x0000132b jmp 0x1332
0x0000132d mov eax, 0xbb80 ; 0xbb80 (__ZL21gChannelNames_UCX_out + 0x50), XREF=__Z9hwGetRateP11IOUSBDevicett+539, __Z9hwGetRateP11IOUSBDevicett+544
0x00001332 test cl, 0x40 ; XREF=__Z9hwGetRateP11IOUSBDevicett+447, __Z9hwGetRateP11IOUSBDevicett+548, __Z9hwGetRateP11IOUSBDevicett+555
0x00001335 jne 0x1230
0x0000133b shr cl, 0x5
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
}
// x1348:
/*
0x00001348 cmp r15w, 0x3fa0 ; XREF 1
0x0000134e jne 0x1401
*/
if ( productId == 0x3fa0 ) /* 0x3fc6 false */
{
/*
0x00001354 lea r15, qword [ss:rbp+var_20]
0x00001358 mov qword [ss:rsp+0x8], r15 ; argument "var_18" for method
0x0000135d mov dword [ss:rsp], 0x1 ; argument "var_10" for method
0x00001364 mov esi, 0x11 ; argument #2 for method
0x00001369 xor edx, edx ; argument #3 for method
0x0000136b lea r8, qword [ss:rbp+var_58] ; argument #5 for method
0x0000136f mov r9d, 0x10 ; argument #6 for method
0x00001375 mov rdi, r14 ; argument #1 for method
0x00001378 xor ecx, ecx ; argument #4 for method
0x0000137a call Usb_vendor_device_request()
0x0000137f test eax, eax
0x00001381 jne 0x1692
0x00001387 mov eax, dword [ss:rbp+var_58]
0x0000138a mov r14d, eax
0x0000138d shr r14d, 0xa
0x00001391 and r14d, 0x7
0x00001395 lea ecx, qword [ds:r14+0xffffffffffffffff]
0x00001399 cmp ecx, 0x4
0x0000139c jb 0x13a7
0x0000139e test bx, bx
0x000013a1 je 0x1692
0x000013a7 test r14d, r14d ; XREF=__Z9hwGetRateP11IOUSBDevicett+668
0x000013aa je 0x13e7
0x000013ac lea r15, qword [ds:_ADATMask.19987] ; _ADATMask.19987
0x000013b3 test dword [ds:r15+r14*4], eax
0x000013b7 jne 0x13e7
0x000013b9 lea ecx, qword [ds:0xfffffffc+r14*4]
0x000013c1 mov r14d, dword [ss:rbp+var_54]
0x000013c5 shr r14d, cl
0x000013c8 and r14d, 0xf
0x000013cc cmp r14d, 0xb
0x000013d0 ja 0x1692
0x000013d6 lea r15, qword [ds:0x175c]
0x000013dd movsxd r14, dword [ds:r15+r14*4]
0x000013e1 add r14, r15
0x000013e4 jmp r14 ; switch statement using table at 0x175c, with 12 cases
0x000013e7 mov ecx, dword [ss:rbp+var_54] ; XREF=__Z9hwGetRateP11IOUSBDevicett+682, __Z9hwGetRateP11IOUSBDevicett+695
0x000013ea jmp 0x11e9
0x000013ef mov eax, 0xac44 ; XREF 1
0x000013f4 jmp 0x1224
0x000013f9 shr ecx, 0x16 ; XREF 1
0x000013fc jmp 0x133e
*/
}
/**********************************************************************************************************
***********************************************************************************************************
F i r e f a c e U C P a r t
***********************************************************************************************************
**********************************************************************************************************/
//x1401:
/*
0x00001401 lea rax, qword [ss:rbp+var_24] ; XREF
0x00001405 mov qword [ss:rsp+0x8], rax ; argument #8 (wLenDone) for method
0x0000140a mov dword [ss:rsp], 0x1 ; argument #7 (bmRequestType) for method
0x00001411 mov esi, 0x11 ; argument #2 (bRequest) for method
0x00001416 xor edx, edx ; argument #3 (wValue) for method
0x00001418 lea r8, qword [ss:rbp+var_5C] ; argument #5 (pData) for method
0x0000141c mov r9d, 0x4 ; argument #6 (wLength) for method
0x00001422 mov rdi, r14 ; argument #1 (IOUSBDevice) for method
0x00001425 xor ecx, ecx ; argument #4 (wIndex) for method
0x00001427 call Usb_vendor_device_request()
*/
uint32_t data_4 = 0; // rbp+var_5C
// uint32_t num_tx_bytes_4 = 0; // rbp+var_24
ctrl_setup ctrl;
ctrl.bmRequestType = 0xc0;
ctrl.bRequest = 0x11;
ctrl.wValue = 0x0000;
ctrl.wIndex = 0x0000;
ctrl.wLength = 0x04;
rc = send_ctrl_setup( dev, &ctrl, (unsigned char*)&data_4 );
/*
0x0000142c test eax, eax
0x0000142e jne 0x1692
*/
/* TODO: Test is unclear: should send_ctrl_setup() return error code or length ? */
if ( rc != 0 )
{
return 0;
}
/*
0x00001434 mov dword [ss:rbp+var_64], 0x0
0x0000143b lea rax, qword [ss:rbp+var_60]
0x0000143f mov qword [ss:rsp+0x8], rax ; argument #8 (wLenDone) for method
0x00001444 mov dword [ss:rsp], 0x1 ; argument #7 (bmRequestType) for method
0x0000144b mov esi, 0x10 ; argument #2 (bRequest) for method
0x00001450 xor edx, edx ; argument #3 (wValue) for method
0x00001452 lea r8, qword [ss:rbp+var_64] ; argument #5 (pData) for method
0x00001456 mov r9d, 0x4 ; argument #6 (wLength) for method
0x0000145c mov rdi, r14 ; argument #1 (IOUSBDevice) for method
0x0000145f xor ecx, ecx ; argument #4 (wIndex) for method
0x00001461 call Usb_vendor_device_request()
*/
uint32_t data_5 = 0; // rbp+var_64
// uint32_t num_tx_bytes_5 = 0; // rbp+var_60
ctrl.bmRequestType = 0xc0;
ctrl.bRequest = 0x10;
ctrl.wValue = 0x0000;
ctrl.wIndex = 0x0000;
ctrl.wLength = 0x04;
send_ctrl_setup( dev, &ctrl, (unsigned char*)&data_5 );
/*
0x00001466 add r15d, 0xffffc040
0x0000146d cmp r15w, 0xf
0x00001472 ja 0x1692
*/
uint16_t r15w = (uint16_t)((productId + 0xffffc040) & 0xffff);
if ( r15w > 0xf ) /* 0x3fc6 false */
{
return 0;
}
/*
0x00001478 movzx eax, r15w
0x0000147c mov ecx, 0x82c1
0x00001481 bt rcx, rax
0x00001485 jb 0x14e3
*/
if ( ((0x82c1 >> r15w) & 0x1) == 0 ) // if ( CF = 0 ), 0x3fc6 false
{
/*
0x00001487 mov ecx, 0x2100
0x0000148c bt rcx, rax
0x00001490 jae 0x1692
*/
if ( ((0x2100 >> r15w) & 0x1) == 0 )
{
return 0;
}
/*
0x00001496 mov ecx, dword [ss:rbp+var_5C] ; ecx = data_4
0x00001499 mov eax, ecx
0x0000149b shr eax, 0x9
0x0000149e and eax, 0x7
0x000014a1 lea edx, qword [ds:rax+0xffffffffffffffff]
0x000014a4 cmp edx, 0x5
0x000014a7 jb 0x14b2
0x000014a9 test bx, bx
0x000014ac je 0x1692
*/
// ecx = data_4;
eax = data_4;
eax >>= 0x9;
eax &= 0x7;
if ( (uint32_t)(eax + 0xffffffffffffffff) >= 0x5 && unknownArg == 0 )
{
return 0;
}
/*
0x000014b2 cmp eax, 0x1 ; XREF 1
0x000014b5 je 0x15cf
*/
if ( eax == 0x1 )
{
// THAT PART ALWAYS RETURNS
/*
0x000015cf test byte [ss:rbp+var_64], 0x40 ; XREF 1 /// data_5
0x000015d3 jne 0x1644
*/
if ( (unsigned char)data_5 == 0x40 )
{
return 0;
}
/*
0x000015d5 shr ecx, 0xc
0x000015d8 and ecx, 0xf
0x000015db cmp ecx, 0xb
0x000015de ja 0x1692
*/
if ( ((data_4 >> 0xc) & 0xf) > 0xb )
{
return 0;
}
/*
0x000015e4 lea rax, qword [ds:0x184c]
0x000015eb movsxd rcx, dword [ds:rax+rcx*4]
0x000015ef add rcx, rax
0x000015f2 jmp rcx
*/
switch ( (data_4 >> 0xc) & 0xf )
{
case 0: return 0x7d00; /* 0x0000163a */
case 1: return 0xac44; /* 0x000011ad */
case 2: /* 0x000015f4 */
case 3: return 0xbb80; /* 0x000015f4 */
case 4: return 0xfa00; /* 0x000015fe */
case 5: return 0x15888; /* 0x00001608 */
case 6: /* 0x00001612 */
case 7: return 0x17700; /* 0x00001612 */
case 8: return 0x1f400; /* 0x0000161c */
case 9: return 0x2b110; /* 0x00001626 */
case 10: /* 0x00001630 */
case 11: return 0x2ee00; /* 0x00001630 */
}
}
/*
0x000014bb cmp eax, 0x2
0x000014be jne 0x1644
*/
if ( eax == 0x2 )
{
// THAT PART ALWAYS RETURNS
/*
0x000014c4 shr ecx, 0x10
0x000014c7 and ecx, 0xf
0x000014ca cmp ecx, 0xb
0x000014cd ja 0x1692
*/
if ( ((data_4 >> 0x10) & 0xf) > 0xb )
{
return 0;
}
/*
0x000014d3 lea rax, qword [ds:0x181c]
0x000014da movsxd rcx, dword [ds:rax+rcx*4]
0x000014de add rcx, rax
0x000014e1 jmp rcx ; switch statement with 12 cases
*/
switch ( (data_4 >> 0x10) & 0xf )
{
case 0: return 0x7d00; /* 0x0000163a */
case 1: return 0xac44; /* 0x000011ad */
case 2: /* 0x000015f4 */
case 3: return 0xbb80; /* 0x000015f4 */
case 4: return 0xfa00; /* 0x000015fe */
case 5: return 0x15888; /* 0x00001608 */
case 6: /* 0x00001612 */
case 7: return 0x17700; /* 0x00001612 */
case 8: return 0x1f400; /* 0x0000161c */
case 9: return 0x2b110; /* 0x00001626 */
case 10: /* 0x00001630 */
case 11: return 0x2ee00; /* 0x00001630 */
}
/*
Eg:
data_4 = 0x00feff01 >> 0x10 & 0xf =
*/
}
/*
0x00001644 mov eax, ecx ; XREF 2
0x00001646 and eax, 0x30000000
0x0000164b cmp eax, 0xfffffff
0x00001650 jg 0x165d
*/
if ( (data_4 & 0x30000000) > 0xfffffff )
{
/*
0x0000165d cmp eax, 0x10000000 ; XREF 1
0x00001662 je 0x1676
*/
if ( (data_4 & 0x30000000) == 0x10000000 )
{
/*
0x00001676 mov eax, 0xac44 ; XREF 1
0x0000167b jmp 0x1682
*/
eax = 0xac44;
/*
0x00001682 test ecx, ecx ; XREF 3
0x00001684 js 0x1230
*/
if ( (int32_t)data_4 < 0 )
{
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
else
{
/*
0x0000168a shr ecx, 0x1e
0x0000168d jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
data_4 >>= 0x1e;
data_4 &= 0x1;
return eax << data_4;
}
/*
0x00001664 cmp eax, 0x20000000
0x00001669 je 0x167d
0x0000166b cmp eax, 0x30000000
0x00001670 je 0x167d
*/
}
else if ((data_4 & 0x30000000) == 0x20000000 || (data_4 & 0x30000000) == 0x30000000)
{
/*
0x0000167d mov eax, 0xbb80 ; XREF 2
*/
eax = 0xbb80;
/*
0x00001682 test ecx, ecx ; XREF 3
0x00001684 js 0x1230
*/
if ( (int32_t)data_4 < 0 )
{
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
else
{
/*
0x0000168a shr ecx, 0x1e
0x0000168d jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
data_4 >>= 0x1e;
data_4 &= 0x1;
return eax << data_4;
}
/*
0x00001672 xor eax, eax ; XREF 1
0x00001674 jmp 0x1682
*/
}
else
{
eax = 0;
/*
0x00001682 test ecx, ecx ; XREF 3
0x00001684 js 0x1230
*/
if ( (int32_t)data_4 < 0 )
{
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
else
{
/*
0x0000168a shr ecx, 0x1e
0x0000168d jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
data_4 >>= 0x1e;
data_4 &= 0x1;
return eax << data_4;
}
}
}
/*
0x00001652 test eax, eax
0x00001654 jne 0x1672
*/
if ( (data_4 & 0x30000000) != 0 )
{
/*
0x00001672 xor eax, eax ; XREF 1
0x00001674 jmp 0x1682
*/
eax = 0;
/*
0x00001682 test ecx, ecx ; XREF 3
0x00001684 js 0x1230
*/
if ( (int32_t)data_4 < 0 )
{
/*
0x00001230 shl eax, 0x2 ; XREF 3
0x00001233 jmp 0x11b2
*/
return eax << 0x2;
}
else
{
/*
0x0000168a shr ecx, 0x1e
0x0000168d jmp 0x133e
0x0000133e and cl, 0x1 ; XREF 3
0x00001341 shl eax, cl
0x00001343 jmp 0x11b2
*/
data_4 >>= 0x1e;
data_4 &= 0x1;
return eax << data_4;
}
}
/*
0x00001656 mov eax, 0x7d00
0x0000165b jmp 0x1682
*/
eax = 0x7d00;
/*
0x00001682 test ecx, ecx ; XREF 3
0x00001684 js 0x1230
*/
if ( (int32_t)data_4 < 0 )
{
/*
0x00001230 shl eax, 0x2 ; XREF 3