forked from NyaMisty/mkxqimage_rev
-
Notifications
You must be signed in to change notification settings - Fork 0
/
mkxqimage.c
1194 lines (1134 loc) · 31.3 KB
/
mkxqimage.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
/* This file was generated by the Hex-Rays decompiler.
Copyright (c) 2007-2020 Hex-Rays <[email protected]>
Detected compiler: GNU C++
*/
//#include "defs.h"
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/reboot.h>
#include <sys/ioctl.h>
#include <openssl/evp.h>
#include <openssl/md5.h>
#include <openssl/pem.h>
typedef struct __attribute__((aligned(4)))
{
uint32_t magic;
uint32_t rsaLen;
uint32_t crc32sum;
uint16_t romType;
int16_t model;
uint32_t fileOffs[8];
} MiRomHdr;
typedef struct
{
uint16_t magic;
uint16_t rsvd0;
uint32_t flashaddr;
uint32_t filesize;
uint16_t mtdid;
uint16_t unk5;
char name[32];
} MiRomFile;
//-------------------------------------------------------------------------
// Function declarations
void error_exit();
size_t util_get_file_len(FILE *a1);
int util_check_model_idx(int16_t model_idx);
int main(int argc, const char **argv, const char **envp);
int for_each_file(FILE *f, int (*callback)(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata), void *userData);
int load_image(FILE *f, int disableVerify);
int command_verify_image(const char *filename);
int extract_normal_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_extract_file(const char *filename, const char *sshFile, int disableVerify, const char *fname, int outputToFile);
int flash_mtd_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_mtd_flash(const char *filename, int needVerify);
int dump_file_desc(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_list_files(const char *image, const char *a2);
int get_version_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
int command_get_image_version(const char *a1);
int command_get_ssh_key();
unsigned int crc32_update(uint8_t *buf, int64_t size, unsigned int state);
uint32_t calc_crc32(FILE *f, int start, unsigned int size);
int64_t init_pkey(EVP_MD_CTX *ctx, RSA **pem, EVP_PKEY **ppkey, int isSsh); // idb
int j_verify_rsa(FILE *f, unsigned int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh);
int verify_rsa(FILE *f, int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh);
int64_t write_buf(int fd, void *buf, unsigned int size);
int open_and_erase_mtd(unsigned int mtdId);
int64_t calcMd5(unsigned char *a1, const char *a2);
int64_t transpostGuid(uint8_t *a1, char *outbuf);
int64_t get_ssh_key();
int extract_ssh_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata);
//-------------------------------------------------------------------------
// Data declarations
uint32_t crc32_table[256] =
{
0, 0x77073096, 0xEE0E612C, 0x990951BA,
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
};
char *model_nr[30] =
{
"NULL",
"NULL",
"NULL",
"R1CM",
"R2D",
"R1CL",
"R2CM",
"R3",
"R3D",
"R3L",
"R3P",
"P01",
"R3A",
"R3G",
"R4",
"R4C",
"D01",
"R4A",
"R4CM",
"R4AC",
"R3GV2",
"R2600",
"R2100",
"RM2100",
"R3600",
"R1350",
"R2200",
"R2350",
"IR1200G",
"R1800"
}; // weak
int max_model_nr = 30; // weak
//----- (0000000000401730) ----------------------------------------------------
void error_exit()
{
fwrite("Ouch!\n", 1u, 6u, stderr);
exit(1);
}
//----- (00000000004017A4) ----------------------------------------------------
size_t util_get_file_len(FILE *a1)
{
size_t v3; // [xsp+28h] [xbp+28h]
int v4; // [xsp+2Ch] [xbp+2Ch]
v4 = ftell(a1);
fseek(a1, 0LL, 2);
v3 = ftell(a1);
fseek(a1, v4, 0);
return v3;
}
//----- (00000000004017F8) ----------------------------------------------------
int util_check_model_idx(int16_t model_idx)
{
#ifdef ONDEVICE
int result; // w0
char v3[8]; // [xsp+20h] [xbp+20h] BYREF
FILE *stream; // [xsp+28h] [xbp+28h]
memset(v3, 0, 8);
stream = popen("cat /proc/xiaoqiang/model", "r");
if ( stream )
{
if ( fgets(v3, 8, stream) )
{
pclose(stream);
if ( model_idx < max_model_nr )
{
result = strcmp(v3, model_nr[model_idx]);
}
else
{
fprintf(
stderr,
"Illegal model: model_idx=%d,max_model_nr=%d \n",
(unsigned int)model_idx,
(unsigned int)max_model_nr);
result = -1;
}
}
else
{
fwrite("Failed to get model \n", 1u, 0x15u, stderr);
result = -1;
}
}
else
{
fwrite("Failed to run command\n", 1u, 0x16u, stderr);
result = -1;
}
return result;
#else
printf("%s\n", model_nr[model_idx]);
return 0;
#endif
}
//----- (0000000000401918) ----------------------------------------------------
int main(int argc, const char **argv, const char **envp)
{
int v6; // [xsp+20h] [xbp+20h]
int ret; // [xsp+24h] [xbp+24h]
const char *filename; // [xsp+28h] [xbp+28h]
const char *a2; // [xsp+30h] [xbp+30h]
const char *file; // [xsp+38h] [xbp+38h]
int toStdout; // [xsp+44h] [xbp+44h]
int disableVerify; // [xsp+48h] [xbp+48h]
int mode; // [xsp+4Ch] [xbp+4Ch]
mode = -1;
disableVerify = 0;
toStdout = 0;
file = 0LL;
a2 = 0LL;
filename = 0LL;
OPENSSL_add_all_algorithms_noconf();
while ( 1 )
{
v6 = getopt(argc, (char *const *)argv, "-v:x:w:c:V:Io:s:m:t:p:f:S:rn");
if ( v6 == -1 )
break;
switch ( v6 )
{
case 'I':
mode = 6;
continue;
case 'S':
a2 = optarg;
continue;
case 'V':
mode = 5;
filename = optarg;
continue;
case 'c':
mode = 4;
filename = optarg;
continue;
case 'f':
if ( mode != 2 && mode != 4 )
continue;
if ( file )
{
fwrite("Multiple files specified\n", 1u, 0x19u, stderr);
return -22;
}
file = optarg;
break;
case 'n':
toStdout = 1;
continue;
case 'r':
disableVerify = 1;
continue;
case 'v':
mode = 1;
filename = optarg;
continue;
case 'w':
mode = 3;
filename = optarg;
continue;
case 'x':
mode = 2;
filename = optarg;
continue;
default:
error_exit();
}
}
switch ( mode )
{
case 1:
ret = command_verify_image(filename);
break;
case 2:
ret = command_extract_file(filename, a2, disableVerify, file, toStdout);
break;
case 3:
ret = command_mtd_flash(filename, disableVerify);
break;
case 4:
ret = command_list_files(filename, file);
break;
case 5:
ret = command_get_image_version(filename);
break;
case 6:
ret = command_get_ssh_key();
break;
default:
error_exit();
}
return ret;
}
//----- (0000000000401BAC) ----------------------------------------------------
int for_each_file(FILE *f, int (*callback)(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata), void *userData)
{
MiRomFile filehdr; // [xsp+30h] [xbp+30h] BYREF
MiRomHdr buf; // [xsp+60h] [xbp+60h] BYREF
size_t readret; // [xsp+90h] [xbp+90h]
unsigned int off; // [xsp+94h] [xbp+94h]
int ret; // [xsp+98h] [xbp+98h]
int fileid; // [xsp+9Ch] [xbp+9Ch]
ret = 0;
off = 0;
if ( !callback )
return -1;
rewind(f);
readret = fread(&buf, 1u, 0x30u, f);
if ( ferror(f) )
return 0xFFFFFFFB;
for ( fileid = 0; fileid <= 7; ++fileid )
{
off = buf.fileOffs[fileid];
if ( !off )
break;
ret = fseek(f, off, 0);
if ( ret )
break;
readret = fread(&filehdr, 1u, 0x30u, f);
if ( readret != 48 )
return -5;
ret = callback(&buf, (unsigned char)fileid, &filehdr, f, userData);
if ( ret )
return ret;
}
return ret;
}
//----- (0000000000401D08) ----------------------------------------------------
int load_image(FILE *f, int disableVerify)
{
unsigned char sigbuf[4096]; // [xsp+20h] [xbp+20h] BYREF
size_t sigsize[4]; // [xsp+1020h] [xbp+1020h] BYREF
MiRomHdr hdr; // [xsp+1030h] [xbp+1030h] BYREF
uint32_t crcret; // [xsp+1064h] [xbp+1064h]
short model_idx; // [xsp+106Ah] [xbp+106Ah]
size_t ret; // [xsp+106Ch] [xbp+106Ch]
size_t len; // [xsp+1070h] [xbp+1070h]
uint16_t v12; // [xsp+1076h] [xbp+1076h]
unsigned int isSsh; // [xsp+1078h] [xbp+1078h]
int verify_ret; // [xsp+107Ch] [xbp+107Ch]
memset(sigbuf, 0, sizeof(sigbuf));
v12 = -1;
verify_ret = 0;
len = 0;
isSsh = 0;
rewind(f);
ret = fread(&hdr, 1u, 0x30u, f);
if ( ret != 0x30 )
return 0xFFFFFFFB;
if ( hdr.magic != '1RDH' )
{
fwrite("Invalid image block\n", 1u, 0x14u, stderr);
return -22;
}
model_idx = hdr.model;
if ( util_check_model_idx(hdr.model) )
{
fwrite("Model mismatch\n", 1u, 0xFu, stderr);
return -22;
}
len = util_get_file_len(f);
rewind(f);
crcret = calc_crc32(f, 12, len - 12);
if ( hdr.crc32sum != crcret )
{
fwrite("Image checksum is invalid\n", 1u, 0x1Au, stderr);
return -22;
}
v12 = hdr.romType;
if ( hdr.romType == 12 )
isSsh = 1;
if ( disableVerify )
{
verify_ret = 0;
}
else
{
fseek(f, hdr.rsaLen, SEEK_SET);
ret = fread(sigsize, 1u, 0x10u, f);
if ( ret != 16 )
return -5;
ret = fread(sigbuf, 1u, sigsize[0], f);
if ( sigsize[0] != ret )
return -5;
rewind(f);
verify_ret = j_verify_rsa(f, 12u, hdr.rsaLen - 12, sigbuf, sigsize[0], isSsh);
}
if ( !verify_ret )
return 0;
fwrite("Image verify failed, not formal image\n", 1u, 0x26u, stderr);
return -22;
}
//----- (0000000000401FBC) ----------------------------------------------------
int command_verify_image(const char *filename)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v4; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(filename, "r");
if ( stream )
{
v4 = load_image(stream, 0);
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
v4 = -2;
}
return v4;
}
//----- (0000000000402048) ----------------------------------------------------
int extract_normal_rom_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
int64_t v5; // x0
size_t v9; // [xsp+4Ch] [xbp+4Ch]
void *ptr; // [xsp+50h] [xbp+50h]
char *fname; // [xsp+58h] [xbp+58h]
int v13; // [xsp+6Ch] [xbp+6Ch]
size_t chunksize; // [xsp+70h] [xbp+70h]
uint32_t filesize; // [xsp+74h] [xbp+74h]
FILE *s; // [xsp+78h] [xbp+78h]
v13 = 0;
fname = *(char **)userdata;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 0xBABE )
return 0;
if ( fname && strcmp(fildhdr->name, fname) )
return 0;
if ( *((uint32_t *)userdata + 2) )
{
s = (FILE *)stdout;
}
else
{
s = fopen(fildhdr->name, "w");
if ( !s )
{
fprintf(stderr, "can not open \"%s\" for writing\n", fildhdr->name);
return -5;
}
}
ptr = malloc(0x10000u);
if ( ptr )
{
filesize = fildhdr->filesize;
while ( filesize )
{
v9 = fread(ptr, 1u, 0x10000u, f);
if ( filesize < v9 )
{
chunksize = filesize;
v5 = fwrite(ptr, filesize, 1u, s);
}
else
{
chunksize = v9;
v5 = fwrite(ptr, v9, 1u, s);
}
if ( !v5 || fflush(s) )
{
fwrite("fwrite failed\n", 1u, 0xEu, stderr);
v13 = -5;
goto LABEL_26;
}
filesize -= chunksize;
if ( feof(f) && filesize )
{
fwrite("File too short while required write length too long\n", 1u, 0x34u, stderr);
v13 = -5;
goto LABEL_26;
}
}
if ( fname )
v13 = 1;
LABEL_26:
free(ptr);
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
v13 = -12;
}
if ( !*((uint32_t *)userdata + 2) )
fclose(s);
return v13;
}
// 414DC8: using guessed type int64_t stdout;
//----- (00000000004022F8) ----------------------------------------------------
int command_extract_file(const char *filename, const char *sshFile, int disableVerify, const char *fname, int outputToFile)
{
void *v10[2]; // [xsp+38h] [xbp+38h] BYREF
MiRomHdr hdr; // [xsp+48h] [xbp+48h] BYREF
size_t v12; // [xsp+78h] [xbp+78h]
uint16_t v13; // [xsp+7Eh] [xbp+7Eh]
FILE *stream; // [xsp+80h] [xbp+80h]
int ret; // [xsp+8Ch] [xbp+8Ch]
ret = 0;
v13 = 0;
v10[1] = (void *)outputToFile;
v10[0] = fname;
stream = fopen(filename, "r");
if ( stream )
{
ret = load_image(stream, disableVerify);
if ( !ret )
{
rewind(stream);
v12 = fread(&hdr, 1u, 0x30u, stream);
if ( v12 == 48 )
{
v13 = hdr.romType;
if ( hdr.romType == 12 )
ret = for_each_file(stream, extract_ssh_rom_callback, (void *)sshFile);
else
ret = for_each_file(stream, extract_normal_rom_callback, v10);
if ( fname )
{
if ( ret <= 0 )
{
if ( !ret )
ret = -2;
}
else
{
ret = 0;
}
}
}
else
{
ret = -5;
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
ret = -2;
}
return ret;
}
//----- (0000000000402484) ----------------------------------------------------
int flash_mtd_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
unsigned int v8; // [xsp+44h] [xbp+44h]
void *buf; // [xsp+48h] [xbp+48h]
int fd; // [xsp+50h] [xbp+50h]
int v11; // [xsp+54h] [xbp+54h]
unsigned int size; // [xsp+58h] [xbp+58h]
unsigned int filesize; // [xsp+5Ch] [xbp+5Ch]
v11 = 0;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 0xBABE )
return v11;
if ( fildhdr->mtdid == 0xFFFF )
{
printf("Skip offset[%hhu]\n", (unsigned char)fileid);
}
else
{
fd = open_and_erase_mtd(fildhdr->mtdid);
buf = malloc(0x10000u);
if ( buf )
{
filesize = fildhdr->filesize;
while ( filesize )
{
v8 = fread(buf, 1u, 0x10000u, f);
if ( filesize < v8 )
{
size = filesize;
write_buf(fd, buf, filesize);
}
else
{
size = v8;
write_buf(fd, buf, v8);
}
filesize -= size;
if ( feof(f) && filesize )
{
fwrite("File too short while required write length too long\n", 1u, 0x34u, stderr);
free(buf);
v11 = -5;
break;
}
}
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
v11 = -12;
}
close(fd);
}
return v11;
}
//----- (0000000000402628) ----------------------------------------------------
int command_mtd_flash(const char *filename, int needVerify)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v6; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(filename, "r");
if ( stream )
{
v6 = load_image(stream, needVerify);
if ( !v6 )
{
system("nvram set flashing=1");
system("nvram commit");
v6 = for_each_file(stream, flash_mtd_callback, 0LL);
if ( !v6 )
{
system("nvram unset flashing");
system("nvram commit");
fwrite("system will reboot\n", 1u, 0x13u, stderr);
reboot(0x1234567);
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", filename);
v6 = -2;
}
return v6;
}
//----- (0000000000402754) ----------------------------------------------------
int dump_file_desc(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
if ( !(uint8_t)fileid )
{
if ( hdr->magic != '1RDH' )
{
printf("Invalid MAGIC 0x%x, 0x%x\n", hdr->magic, 827475016LL);
return 0xFFFFFFEA;
}
printf("version %d, file type: %d\n", hdr->model, hdr->romType);
}
if ( userdata && strcmp(fildhdr->name, (const char *)userdata) )
return 0;
printf("Segment %d: Offset 0x%x\n", (unsigned char)fileid, hdr->fileOffs[(unsigned char)fileid]);
if ( fildhdr->magic == 0xBABE )
{
printf("Filename %s\n", fildhdr->name);
printf("Flash addr = 0x%x, length = 0x%x, partition = %d\n", fildhdr->flashaddr, fildhdr->filesize, fildhdr->mtdid);
if ( userdata )
return 1;
}
else
{
printf("Invalid sub MAGIC,magic:0x%x le_mag:0x%x rsvd0:0x%x\n", fildhdr->magic, fildhdr->magic, fildhdr->rsvd0);
}
return 0;
}
//----- (00000000004028E0) ----------------------------------------------------
int command_list_files(const char *image, const char *a2)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v6; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(image, "r");
if ( stream )
{
v6 = for_each_file(stream, dump_file_desc, (void *)a2);
if ( a2 )
{
if ( v6 <= 0 )
{
if ( !v6 )
v6 = -2;
}
else
{
v6 = 0;
}
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", image);
v6 = -2;
}
return v6;
}
//----- (00000000004029B0) ----------------------------------------------------
int get_version_callback(MiRomHdr *hdr, int64_t fileid, MiRomFile *fildhdr, FILE *f, void *userdata)
{
char *ptr; // [xsp+50h] [xbp+50h]
uint32_t size; // [xsp+58h] [xbp+58h]
int size_4; // [xsp+5Ch] [xbp+5Ch]
size_4 = 0;
if ( fildhdr->filesize <= 7 || fildhdr->magic != 47806 )
return 0;
size = fildhdr->filesize;
if ( strcmp(fildhdr->name, "xiaoqiang_version") )
return size_4;
if ( malloc(0x10000u) && (ptr = (char *)malloc(size)) != 0LL )
{
if ( fread(ptr, 1u, size, f) == size )
{
printf("%s", ptr);
size_4 = 1;
}
else
{
size_4 = -5;
}
free(ptr);
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
size_4 = -12;
}
return size_4;
}
//----- (0000000000402B20) ----------------------------------------------------
int command_get_image_version(const char *a1)
{
FILE *stream; // [xsp+20h] [xbp+20h]
int v4; // [xsp+2Ch] [xbp+2Ch]
stream = fopen(a1, "r");
if ( stream )
{
v4 = for_each_file(stream, get_version_callback, 0LL);
if ( v4 <= 0 )
{
if ( !v4 )
v4 = -2;
}
else
{
v4 = 0;
}
fclose(stream);
}
else
{
fprintf(stderr, "can not open \"%s\" for reading\n", a1);
v4 = -2;
}
return v4;
}
//----- (0000000000402BE0) ----------------------------------------------------
int command_get_ssh_key()
{
get_ssh_key();
return 0;
}
//----- (0000000000402C78) ----------------------------------------------------
unsigned int crc32_update(uint8_t *buf, int64_t size, unsigned int state)
{
while ( size )
{
state = crc32_table[(unsigned char)(*buf ^ state)] ^ (state >> 8);
--size;
++buf;
}
return state;
}
//----- (0000000000402CF4) ----------------------------------------------------
uint32_t calc_crc32(FILE *f, int start, unsigned int size)
{
uint32_t result; // w0
unsigned int v6; // [xsp+24h] [xbp+24h]
uint8_t *ptr; // [xsp+28h] [xbp+28h]
unsigned int chunk_size; // [xsp+34h] [xbp+34h]
unsigned int crc; // [xsp+3Ch] [xbp+3Ch]
crc = -1;
ptr = malloc(0x10000u);
if ( ptr )
{
fseek(f, start, 0);
while ( size )
{
v6 = fread(ptr, 1u, 0x10000u, f);
if ( size < v6 )
chunk_size = size;
else
chunk_size = v6;
crc = crc32_update(ptr, chunk_size, crc);
size -= chunk_size;
if ( feof(f) && size )
{
fwrite("File too short while required CRC length too long\n", 1u, 0x32u, stderr);
return 1;
}
}
free(ptr);
rewind(f);
result = crc;
}
else
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
result = 1;
}
return result;
}
//----- (0000000000402E4C) ----------------------------------------------------
int64_t init_pkey(EVP_MD_CTX *ctx, RSA **pem, EVP_PKEY **ppkey, int isSsh)
{
int64_t result; // x0
const EVP_MD *algo; // x0
FILE *stream; // [xsp+38h] [xbp+38h]
#ifdef ONDEVICE
if ( isSsh == 1 )
stream = fopen("/usr/share/xiaoqiang/public_ssh.pem", "rb");
else
stream = fopen("/usr/share/xiaoqiang/public.pem", "rb");
#else
if ( isSsh == 1 )
stream = fopen("public_ssh.pem", "rb");
else
stream = fopen("public.pem", "rb");
#endif
if ( stream )
{
*pem = PEM_read_RSA_PUBKEY(stream, 0LL, 0LL, 0LL);
if ( *pem )
{
fclose(stream);
*ppkey = EVP_PKEY_new();
if ( *ppkey )
{
if ( EVP_PKEY_set1_RSA(*ppkey, *pem) == 1 )
{
EVP_MD_CTX_init(ctx);
algo = EVP_sha1();
if ( EVP_DigestInit_ex(ctx, algo, 0LL) == 1 )
{
result = 0LL;
}
else
{
fwrite("error EVP_VerfyInit_ex\n", 1u, 0x17u, stderr);
RSA_free(*pem);
EVP_PKEY_free(*ppkey);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error EVP_PKEY_st1_RSA\n", 1u, 0x17u, stderr);
RSA_free(*pem);
EVP_PKEY_free(*ppkey);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error EVP_PEKY_new\n", 1u, 0x13u, stderr);
RSA_free(*pem);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error PEM_read_RSAPublicKey\n", 1u, 0x1Cu, stderr);
fclose(stream);
result = 0xFFFFFFFFLL;
}
}
else
{
fwrite("error fopen public key \n", 1u, 0x18u, stderr);
result = 0xFFFFFFFFLL;
}
return result;
}
//----- (000000000040307C) ----------------------------------------------------
int j_verify_rsa(FILE *f, unsigned int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh)
{
return verify_rsa(f, start, size, sigbuf, siglen, isSsh);
}
//----- (00000000004030C0) ----------------------------------------------------
int verify_rsa(FILE *f, int start, unsigned int size, const unsigned char *sigbuf, unsigned int siglen, unsigned int isSsh)
{
int result; // w0
EVP_PKEY *pkey; // [xsp+30h] [xbp+30h] BYREF
RSA *pem; // [xsp+38h] [xbp+38h] BYREF
EVP_MD_CTX* ctx; // [xsp+40h] [xbp+40h] BYREF
unsigned int v15; // [xsp+74h] [xbp+74h]
void *buf; // [xsp+78h] [xbp+78h]
size_t cnt; // [xsp+84h] [xbp+84h]
unsigned int v18; // [xsp+88h] [xbp+88h]
int v19; // [xsp+8Ch] [xbp+8Ch]
ctx=EVP_MD_CTX_new();
v18 = size;
cnt = 0;
pkey = 0LL;
buf = malloc(0x10000u);
if ( buf )
{
v19 = init_pkey(ctx, &pem, &pkey, isSsh);
if ( v19 )
{
fwrite("malloc failed\n", 1u, 0xEu, stderr);
result = 1;
}
else
{
fseek(f, start, 0);
while ( v18 )
{
v15 = fread(buf, 1u, 0x10000u, f);
if ( v18 < v15 )
cnt = v18;
else
cnt = v15;
if ( EVP_DigestUpdate(ctx, buf, cnt) != 1 )// EVP_VerifyUpdate
{
fwrite("error EVP_VerifyUpdate\n", 1u, 0x17u, stderr);
v19 = 1;
goto finish;
}
v18 -= cnt;
if ( feof(f) && v18 )
{
fwrite("File too short while required RSA length too long\n", 1u, 0x32u, stderr);
v19 = 1;