forked from Hashcode/android_bootable_recovery
-
Notifications
You must be signed in to change notification settings - Fork 5
/
twrpTar.cpp
1111 lines (1042 loc) · 30.8 KB
/
twrpTar.cpp
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
/*
Copyright 2013 TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
extern "C" {
#include "libtar/libtar.h"
#include "twrpTar.h"
#include "tarWrite.h"
}
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <fstream>
#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <dirent.h>
#include <libgen.h>
#include <sys/mman.h>
#include "twrpTar.hpp"
#include "twcommon.h"
#include "variables.h"
#include "twrp-functions.hpp"
using namespace std;
twrpTar::twrpTar(void) {
use_encryption = 0;
userdata_encryption = 0;
use_compression = 0;
split_archives = 0;
has_data_media = 0;
pigz_pid = 0;
oaes_pid = 0;
Total_Backup_Size = 0;
include_root_dir = true;
}
twrpTar::~twrpTar(void) {
// Do nothing
}
void twrpTar::setfn(string fn) {
tarfn = fn;
}
void twrpTar::setdir(string dir) {
tardir = dir;
}
void twrpTar::setsize(unsigned long long backup_size) {
Total_Backup_Size = backup_size;
}
void twrpTar::setpassword(string pass) {
password = pass;
}
int twrpTar::createTarFork() {
int status = 0;
pid_t pid, rc_pid;
if ((pid = fork()) == -1) {
LOGINFO("create tar failed to fork.\n");
return -1;
}
if (pid == 0) {
// Child process
if (use_encryption || userdata_encryption) {
LOGINFO("Using encryption\n");
DIR* d;
struct dirent* de;
unsigned long long regular_size = 0, encrypt_size = 0, target_size = 0, core_count = 1;
unsigned enc_thread_id = 1, regular_thread_id = 0, i, start_thread_id = 1;
int item_len, ret, thread_error = 0;
std::vector<TarListStruct> RegularList;
std::vector<TarListStruct> EncryptList;
string FileName;
struct TarListStruct TarItem;
twrpTar reg, enc[9];
struct stat st;
pthread_t enc_thread[9];
pthread_attr_t tattr;
void *thread_return;
core_count = sysconf(_SC_NPROCESSORS_CONF);
if (core_count > 8)
core_count = 8;
LOGINFO(" Core Count : %llu\n", core_count);
Archive_Current_Size = 0;
d = opendir(tardir.c_str());
if (d == NULL) {
LOGERR("error opening '%s'\n", tardir.c_str());
_exit(-1);
}
// Figure out the size of all data to be encrypted and create a list of unencrypted files
while ((de = readdir(d)) != NULL) {
FileName = tardir + "/" + de->d_name;
if (de->d_type == DT_BLK || de->d_type == DT_CHR || du.check_skip_dirs(FileName))
continue;
if (de->d_type == DT_DIR) {
item_len = strlen(de->d_name);
if (userdata_encryption && ((item_len >= 3 && strncmp(de->d_name, "app", 3) == 0) || (item_len >= 6 && strncmp(de->d_name, "dalvik", 6) == 0))) {
if (Generate_TarList(FileName, &RegularList, &target_size, ®ular_thread_id) < 0) {
LOGERR("Error in Generate_TarList with regular list!\n");
closedir(d);
_exit(-1);
}
regular_size += du.Get_Folder_Size(FileName);
} else {
encrypt_size += du.Get_Folder_Size(FileName);
}
} else if (de->d_type == DT_REG) {
stat(FileName.c_str(), &st);
encrypt_size += (unsigned long long)(st.st_size);
}
}
closedir(d);
target_size = encrypt_size / core_count;
target_size++;
LOGINFO(" Unencrypted size: %llu\n", regular_size);
LOGINFO(" Encrypted size : %llu\n", encrypt_size);
LOGINFO(" Target size : %llu\n", target_size);
if (!userdata_encryption) {
enc_thread_id = 0;
start_thread_id = 0;
core_count--;
}
Archive_Current_Size = 0;
d = opendir(tardir.c_str());
if (d == NULL) {
LOGERR("error opening '%s'\n", tardir.c_str());
_exit(-1);
}
// Divide up the encrypted file list for threading
while ((de = readdir(d)) != NULL) {
FileName = tardir + "/" + de->d_name;
if (de->d_type == DT_BLK || de->d_type == DT_CHR || du.check_skip_dirs(FileName))
continue;
if (de->d_type == DT_DIR) {
item_len = strlen(de->d_name);
if (userdata_encryption && ((item_len >= 3 && strncmp(de->d_name, "app", 3) == 0) || (item_len >= 6 && strncmp(de->d_name, "dalvik", 6) == 0))) {
// Do nothing, we added these to RegularList earlier
} else {
FileName = tardir + "/" + de->d_name;
if (Generate_TarList(FileName, &EncryptList, &target_size, &enc_thread_id) < 0) {
LOGERR("Error in Generate_TarList with encrypted list!\n");
closedir(d);
_exit(-1);
}
}
} else if (de->d_type == DT_REG || de->d_type == DT_LNK) {
stat(FileName.c_str(), &st);
if (de->d_type == DT_REG)
Archive_Current_Size += (unsigned long long)(st.st_size);
TarItem.fn = FileName;
TarItem.thread_id = enc_thread_id;
EncryptList.push_back(TarItem);
}
}
closedir(d);
if (enc_thread_id != core_count) {
LOGERR("Error dividing up threads for encryption, %i threads for %i cores!\n", enc_thread_id, core_count);
if (enc_thread_id > core_count)
_exit(-1);
else
LOGERR("Continuining anyway.");
}
if (userdata_encryption) {
// Create a backup of unencrypted data
reg.setfn(tarfn);
reg.ItemList = &RegularList;
reg.thread_id = 0;
reg.use_encryption = 0;
reg.use_compression = use_compression;
reg.split_archives = 1;
LOGINFO("Creating unencrypted backup...\n");
if (createList((void*)®) != 0) {
LOGERR("Error creating unencrypted backup.\n");
_exit(-1);
}
}
if (pthread_attr_init(&tattr)) {
LOGERR("Unable to pthread_attr_init\n");
_exit(-1);
}
if (pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_JOINABLE)) {
LOGERR("Error setting pthread_attr_setdetachstate\n");
_exit(-1);
}
if (pthread_attr_setscope(&tattr, PTHREAD_SCOPE_SYSTEM)) {
LOGERR("Error setting pthread_attr_setscope\n");
_exit(-1);
}
/*if (pthread_attr_setstacksize(&tattr, 524288)) {
LOGERR("Error setting pthread_attr_setstacksize\n");
_exit(-1);
}*/
// Create threads for the divided up encryption lists
for (i = start_thread_id; i <= core_count; i++) {
enc[i].setdir(tardir);
enc[i].setfn(tarfn);
enc[i].ItemList = &EncryptList;
enc[i].thread_id = i;
enc[i].use_encryption = use_encryption;
enc[i].setpassword(password);
enc[i].use_compression = use_compression;
enc[i].split_archives = 1;
LOGINFO("Start encryption thread %i\n", i);
ret = pthread_create(&enc_thread[i], &tattr, createList, (void*)&enc[i]);
if (ret) {
LOGINFO("Unable to create %i thread for encryption! %i\nContinuing in same thread (backup will be slower).", i, ret);
if (createList((void*)&enc[i]) != 0) {
LOGERR("Error creating encrypted backup %i.\n", i);
_exit(-1);
} else {
enc[i].thread_id = i + 1;
}
}
usleep(100000); // Need a short delay before starting the next thread or the threads will never finish for some reason.
}
if (pthread_attr_destroy(&tattr)) {
LOGERR("Failed to pthread_attr_destroy\n");
}
for (i = start_thread_id; i <= core_count; i++) {
if (enc[i].thread_id == i) {
if (pthread_join(enc_thread[i], &thread_return)) {
LOGERR("Error joining thread %i\n", i);
_exit(-1);
} else {
LOGINFO("Joined thread %i.\n", i);
ret = (int)thread_return;
if (ret != 0) {
thread_error = 1;
LOGERR("Thread %i returned an error %i.\n", i, ret);
_exit(-1);
}
}
} else {
LOGINFO("Skipping joining thread %i because of pthread failure.\n", i);
}
}
if (thread_error) {
LOGERR("Error returned by one or more threads.\n");
_exit(-1);
}
LOGINFO("Finished encrypted backup.\n");
_exit(0);
} else {
std::vector<TarListStruct> FileList;
unsigned thread_id = 0;
unsigned long long target_size = 0;
twrpTar reg;
// Generate list of files to back up
if (Generate_TarList(tardir, &FileList, &target_size, &thread_id) < 0) {
LOGERR("Error in Generate_TarList!\n");
_exit(-1);
}
// Create a backup
reg.setfn(tarfn);
reg.ItemList = &FileList;
reg.thread_id = 0;
reg.use_encryption = 0;
reg.use_compression = use_compression;
reg.setsize(Total_Backup_Size);
if (Total_Backup_Size > MAX_ARCHIVE_SIZE) {
gui_print("Breaking backup file into multiple archives...\n");
reg.split_archives = 1;
} else {
reg.split_archives = 0;
}
LOGINFO("Creating backup...\n");
if (createList((void*)®) != 0) {
LOGERR("Error creating backup.\n");
_exit(-1);
}
_exit(0);
}
} else {
if (TWFunc::Wait_For_Child(pid, &status, "createTarFork()") != 0)
return -1;
}
return 0;
}
int twrpTar::extractTarFork() {
int status = 0;
pid_t pid, rc_pid;
pid = fork();
if (pid >= 0) // fork was successful
{
if (pid == 0) // child process
{
if (TWFunc::Path_Exists(tarfn)) {
LOGINFO("Single archive\n");
if (extract() != 0)
_exit(-1);
else
_exit(0);
} else {
LOGINFO("Multiple archives\n");
string temp;
char actual_filename[255];
twrpTar tars[9];
pthread_t tar_thread[9];
pthread_attr_t tattr;
int thread_count = 0, i, start_thread_id = 1, ret, thread_error = 0;
void *thread_return;
basefn = tarfn;
temp = basefn + "%i%02i";
tarfn += "000";
if (!TWFunc::Path_Exists(tarfn)) {
LOGERR("Unable to locate '%s' or '%s'\n", basefn.c_str(), tarfn.c_str());
_exit(-1);
}
if (TWFunc::Get_File_Type(tarfn) != 2) {
LOGINFO("First tar file '%s' not encrypted\n", tarfn.c_str());
tars[0].basefn = basefn;
tars[0].thread_id = 0;
if (extractMulti((void*)&tars[0]) != 0) {
LOGERR("Error extracting split archive.\n");
_exit(-1);
}
} else {
start_thread_id = 0;
}
// Start threading encrypted restores
if (pthread_attr_init(&tattr)) {
LOGERR("Unable to pthread_attr_init\n");
_exit(-1);
}
if (pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_JOINABLE)) {
LOGERR("Error setting pthread_attr_setdetachstate\n");
_exit(-1);
}
if (pthread_attr_setscope(&tattr, PTHREAD_SCOPE_SYSTEM)) {
LOGERR("Error setting pthread_attr_setscope\n");
_exit(-1);
}
/*if (pthread_attr_setstacksize(&tattr, 524288)) {
LOGERR("Error setting pthread_attr_setstacksize\n");
_exit(-1);
}*/
for (i = start_thread_id; i < 9; i++) {
sprintf(actual_filename, temp.c_str(), i, 0);
if (TWFunc::Path_Exists(actual_filename)) {
thread_count++;
tars[i].basefn = basefn;
tars[i].setpassword(password);
tars[i].thread_id = i;
LOGINFO("Creating extract thread ID %i\n", i);
ret = pthread_create(&tar_thread[i], &tattr, extractMulti, (void*)&tars[i]);
if (ret) {
LOGINFO("Unable to create %i thread for extraction! %i\nContinuing in same thread (restore will be slower).", i, ret);
if (extractMulti((void*)&tars[i]) != 0) {
LOGERR("Error extracting backup in thread %i.\n", i);
_exit(-1);
} else {
tars[i].thread_id = i + 1;
}
}
usleep(100000); // Need a short delay before starting the next thread or the threads will never finish for some reason.
} else {
break;
}
}
for (i = start_thread_id; i < thread_count + start_thread_id; i++) {
if (tars[i].thread_id == i) {
if (pthread_join(tar_thread[i], &thread_return)) {
LOGERR("Error joining thread %i\n", i);
_exit(-1);
} else {
LOGINFO("Joined thread %i.\n", i);
ret = (int)thread_return;
if (ret != 0) {
thread_error = 1;
LOGERR("Thread %i returned an error %i.\n", i, ret);
_exit(-1);
}
}
} else {
LOGINFO("Skipping joining thread %i because of pthread failure.\n", i);
}
}
if (thread_error) {
LOGERR("Error returned by one or more threads.\n");
_exit(-1);
}
LOGINFO("Finished encrypted backup.\n");
_exit(0);
}
}
else // parent process
{
if (TWFunc::Wait_For_Child(pid, &status, "extractTarFork()") != 0)
return -1;
}
}
else // fork has failed
{
LOGINFO("extract tar failed to fork.\n");
return -1;
}
return 0;
}
int twrpTar::Generate_TarList(string Path, std::vector<TarListStruct> *TarList, unsigned long long *Target_Size, unsigned *thread_id) {
DIR* d;
struct dirent* de;
struct stat st;
string FileName;
struct TarListStruct TarItem;
string::size_type i;
d = opendir(Path.c_str());
if (d == NULL) {
LOGERR("Error opening '%s' -- error: %s\n", Path.c_str(), strerror(errno));
closedir(d);
return -1;
}
while ((de = readdir(d)) != NULL) {
FileName = Path + "/" + de->d_name;
if (de->d_type == DT_BLK || de->d_type == DT_CHR || du.check_skip_dirs(FileName))
continue;
TarItem.fn = FileName;
TarItem.thread_id = *thread_id;
if (de->d_type == DT_DIR) {
TarList->push_back(TarItem);
if (Generate_TarList(FileName, TarList, Target_Size, thread_id) < 0)
return -1;
} else if (de->d_type == DT_REG || de->d_type == DT_LNK) {
stat(FileName.c_str(), &st);
TarList->push_back(TarItem);
if (de->d_type == DT_REG)
Archive_Current_Size += st.st_size;
if (Archive_Current_Size != 0 && *Target_Size != 0 && Archive_Current_Size > *Target_Size) {
*thread_id = *thread_id + 1;
Archive_Current_Size = 0;
}
}
}
closedir(d);
return 0;
}
int twrpTar::extractTar() {
char* charRootDir = (char*) tardir.c_str();
if (openTar() == -1)
return -1;
if (tar_extract_all(t, charRootDir) != 0) {
LOGERR("Unable to extract tar archive '%s'\n", tarfn.c_str());
return -1;
}
if (tar_close(t) != 0) {
LOGERR("Unable to close tar file\n");
return -1;
}
return 0;
}
int twrpTar::extract() {
Archive_Current_Type = TWFunc::Get_File_Type(tarfn);
if (Archive_Current_Type == 1) {
//if you return the extractTGZ function directly, stack crashes happen
LOGINFO("Extracting gzipped tar\n");
int ret = extractTar();
return ret;
} else if (Archive_Current_Type == 2) {
int ret = TWFunc::Try_Decrypting_File(tarfn, password);
if (ret < 1) {
LOGERR("Failed to decrypt tar file '%s'\n", tarfn.c_str());
return -1;
}
if (ret == 1) {
LOGERR("Decrypted file is not in tar format.\n");
return -1;
}
if (ret == 3) {
LOGINFO("Extracting encrypted and compressed tar.\n");
Archive_Current_Type = 3;
} else
LOGINFO("Extracting encrypted tar.\n");
return extractTar();
} else {
LOGINFO("Extracting uncompressed tar\n");
return extractTar();
}
}
int twrpTar::tarList(std::vector<TarListStruct> *TarList, unsigned thread_id) {
struct stat st;
char buf[PATH_MAX];
int list_size = TarList->size(), i = 0, archive_count = 0;
string temp;
char actual_filename[PATH_MAX];
char *ptr;
if (split_archives) {
basefn = tarfn;
temp = basefn + "%i%02i";
sprintf(actual_filename, temp.c_str(), thread_id, archive_count);
tarfn = actual_filename;
include_root_dir = true;
} else {
include_root_dir = false;
}
LOGINFO("Creating tar file '%s'\n", tarfn.c_str());
if (createTar() != 0) {
LOGERR("Error creating tar '%s' for thread %i\n", tarfn.c_str(), thread_id);
return -2;
}
Archive_Current_Size = 0;
while (i < list_size) {
if (TarList->at(i).thread_id == thread_id) {
strcpy(buf, TarList->at(i).fn.c_str());
lstat(buf, &st);
if (S_ISREG(st.st_mode)) { // item is a regular file
if (split_archives && Archive_Current_Size + (unsigned long long)(st.st_size) > MAX_ARCHIVE_SIZE) {
if (closeTar() != 0) {
LOGERR("Error closing '%s' on thread %i\n", tarfn.c_str(), thread_id);
return -3;
}
archive_count++;
gui_print("Splitting thread ID %i into archive %i\n", thread_id, archive_count + 1);
if (archive_count > 99) {
LOGERR("Too many archives for thread %i\n", thread_id);
return -4;
}
sprintf(actual_filename, temp.c_str(), thread_id, archive_count);
tarfn = actual_filename;
if (createTar() != 0) {
LOGERR("Error creating tar '%s' for thread %i\n", tarfn.c_str(), thread_id);
return -2;
}
Archive_Current_Size = 0;
}
Archive_Current_Size += (unsigned long long)(st.st_size);
}
LOGINFO("addFile '%s' including root: %i\n", buf, include_root_dir);
if (addFile(buf, include_root_dir) != 0) {
LOGERR("Error adding file '%s' to '%s'\n", buf, tarfn.c_str());
return -1;
}
}
i++;
}
if (closeTar() != 0) {
LOGERR("Error closing '%s' on thread %i\n", tarfn.c_str(), thread_id);
return -3;
}
LOGINFO("Thread id %i tarList done, %i archives.\n", thread_id, archive_count, i, list_size);
return 0;
}
void* twrpTar::createList(void *cookie) {
twrpTar* threadTar = (twrpTar*) cookie;
if (threadTar->tarList(threadTar->ItemList, threadTar->thread_id) != 0) {
LOGINFO("ERROR tarList for thread ID %i\n", threadTar->thread_id);
return (void*)-2;
}
LOGINFO("Thread ID %i finished successfully.\n", threadTar->thread_id);
return (void*)0;
}
void* twrpTar::extractMulti(void *cookie) {
twrpTar* threadTar = (twrpTar*) cookie;
int archive_count = 0;
string temp = threadTar->basefn + "%i%02i";
char actual_filename[255];
sprintf(actual_filename, temp.c_str(), threadTar->thread_id, archive_count);
while (TWFunc::Path_Exists(actual_filename)) {
threadTar->tarfn = actual_filename;
if (threadTar->extract() != 0) {
LOGINFO("Error extracting '%s' in thread ID %i\n", actual_filename, threadTar->thread_id);
return (void*)-2;
}
archive_count++;
if (archive_count > 99)
break;
sprintf(actual_filename, temp.c_str(), threadTar->thread_id, archive_count);
}
LOGINFO("Thread ID %i finished successfully.\n", threadTar->thread_id);
return (void*)0;
}
int twrpTar::addFilesToExistingTar(vector <string> files, string fn) {
char* charTarFile = (char*) fn.c_str();
if (tar_open(&t, charTarFile, NULL, O_RDONLY | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) == -1)
return -1;
removeEOT(charTarFile);
if (tar_open(&t, charTarFile, NULL, O_WRONLY | O_APPEND | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) == -1)
return -1;
for (unsigned int i = 0; i < files.size(); ++i) {
char* file = (char*) files.at(i).c_str();
if (tar_append_file(t, file, file) == -1)
return -1;
}
if (tar_append_eof(t) == -1)
return -1;
if (tar_close(t) == -1)
return -1;
return 0;
}
int twrpTar::createTar() {
char* charTarFile = (char*) tarfn.c_str();
char* charRootDir = (char*) tardir.c_str();
static tartype_t type = { open, close, read, write_tar };
if (use_encryption && use_compression) {
// Compressed and encrypted
Archive_Current_Type = 3;
LOGINFO("Using encryption and compression...\n");
int i, pipes[4];
if (pipe(pipes) < 0) {
LOGERR("Error creating first pipe\n");
return -1;
}
if (pipe(pipes + 2) < 0) {
LOGERR("Error creating second pipe\n");
return -1;
}
int output_fd = open(tarfn.c_str(), O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if (output_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
for (i = 0; i < 4; i++)
close(pipes[i]); // close all
return -1;
}
pigz_pid = fork();
if (pigz_pid < 0) {
LOGERR("pigz fork() failed\n");
close(output_fd);
for (i = 0; i < 4; i++)
close(pipes[i]); // close all
return -1;
} else if (pigz_pid == 0) {
// pigz Child
close(pipes[1]);
close(pipes[2]);
close(0);
dup2(pipes[0], 0);
close(1);
dup2(pipes[3], 1);
if (execlp("pigz", "pigz", "-", NULL) < 0) {
LOGERR("execlp pigz ERROR!\n");
close(output_fd);
close(pipes[0]);
close(pipes[3]);
_exit(-1);
}
} else {
// Parent
oaes_pid = fork();
if (oaes_pid < 0) {
LOGERR("openaes fork() failed\n");
close(output_fd);
for (i = 0; i < 4; i++)
close(pipes[i]); // close all
return -1;
} else if (oaes_pid == 0) {
// openaes Child
close(pipes[0]);
close(pipes[1]);
close(pipes[3]);
close(0);
dup2(pipes[2], 0);
close(1);
dup2(output_fd, 1);
if (execlp("openaes", "openaes", "enc", "--key", password.c_str(), NULL) < 0) {
LOGERR("execlp openaes ERROR!\n");
close(pipes[2]);
close(output_fd);
_exit(-1);
}
} else {
// Parent
close(pipes[0]);
close(pipes[2]);
close(pipes[3]);
fd = pipes[1];
if(tar_fdopen(&t, fd, charRootDir, NULL, O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;
}
return 0;
}
}
} else if (use_compression) {
// Compressed
Archive_Current_Type = 1;
LOGINFO("Using compression...\n");
int pigzfd[2];
int output_fd = open(tarfn.c_str(), O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if (output_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
close(pigzfd[0]);
return -1;
}
if (pipe(pigzfd) < 0) {
LOGERR("Error creating pipe\n");
close(output_fd);
return -1;
}
pigz_pid = fork();
if (pigz_pid < 0) {
LOGERR("fork() failed\n");
close(output_fd);
close(pigzfd[0]);
close(pigzfd[1]);
return -1;
} else if (pigz_pid == 0) {
// Child
close(pigzfd[1]); // close unused output pipe
dup2(pigzfd[0], 0); // remap stdin
dup2(output_fd, 1); // remap stdout to output file
if (execlp("pigz", "pigz", "-", NULL) < 0) {
LOGERR("execlp pigz ERROR!\n");
close(output_fd);
close(pigzfd[0]);
_exit(-1);
}
} else {
// Parent
close(pigzfd[0]); // close parent input
fd = pigzfd[1]; // copy parent output
if(tar_fdopen(&t, fd, charRootDir, NULL, O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;
}
}
} else if (use_encryption) {
// Encrypted
Archive_Current_Type = 2;
LOGINFO("Using encryption...\n");
int oaesfd[2];
int output_fd = open(tarfn.c_str(), O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if (output_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
return -1;
}
if (pipe(oaesfd) < 0) {
LOGERR("Error creating pipe\n");
close(output_fd);
return -1;
}
oaes_pid = fork();
if (oaes_pid < 0) {
LOGERR("fork() failed\n");
close(output_fd);
close(oaesfd[0]);
close(oaesfd[1]);
return -1;
} else if (oaes_pid == 0) {
// Child
close(oaesfd[1]); // close unused
dup2(oaesfd[0], 0); // remap stdin
dup2(output_fd, 1); // remap stdout to output file
if (execlp("openaes", "openaes", "enc", "--key", password.c_str(), NULL) < 0) {
LOGERR("execlp openaes ERROR!\n");
close(output_fd);
close(oaesfd[0]);
_exit(-1);
}
} else {
// Parent
close(oaesfd[0]); // close parent input
fd = oaesfd[1]; // copy parent output
if(tar_fdopen(&t, fd, charRootDir, NULL, O_WRONLY | O_CREAT | O_EXCL | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;
}
return 0;
}
} else {
// Not compressed or encrypted
init_libtar_buffer(0);
if (tar_open(&t, charTarFile, &type, O_WRONLY | O_CREAT | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) == -1) {
LOGERR("tar_open error opening '%s'\n", tarfn.c_str());
return -1;
}
}
return 0;
}
int twrpTar::openTar() {
char* charRootDir = (char*) tardir.c_str();
char* charTarFile = (char*) tarfn.c_str();
string Password;
if (Archive_Current_Type == 3) {
LOGINFO("Opening encrypted and compressed backup...\n");
int i, pipes[4];
int input_fd = open(tarfn.c_str(), O_RDONLY | O_LARGEFILE);
if (input_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
return -1;
}
if (pipe(pipes) < 0) {
LOGERR("Error creating first pipe\n");
close(input_fd);
return -1;
}
if (pipe(pipes + 2) < 0) {
LOGERR("Error creating second pipe\n");
close(pipes[0]);
close(pipes[1]);
close(input_fd);
return -1;
}
oaes_pid = fork();
if (oaes_pid < 0) {
LOGERR("pigz fork() failed\n");
close(input_fd);
for (i = 0; i < 4; i++)
close(pipes[i]); // close all
return -1;
} else if (oaes_pid == 0) {
// openaes Child
close(pipes[0]); // Close pipes that are not used by this child
close(pipes[2]);
close(pipes[3]);
close(0);
dup2(input_fd, 0);
close(1);
dup2(pipes[1], 1);
if (execlp("openaes", "openaes", "dec", "--key", password.c_str(), NULL) < 0) {
LOGERR("execlp openaes ERROR!\n");
close(input_fd);
close(pipes[1]);
_exit(-1);
}
} else {
// Parent
pigz_pid = fork();
if (pigz_pid < 0) {
LOGERR("openaes fork() failed\n");
close(input_fd);
for (i = 0; i < 4; i++)
close(pipes[i]); // close all
return -1;
} else if (pigz_pid == 0) {
// pigz Child
close(pipes[1]); // Close pipes not used by this child
close(pipes[2]);
close(0);
dup2(pipes[0], 0);
close(1);
dup2(pipes[3], 1);
if (execlp("pigz", "pigz", "-d", "-c", NULL) < 0) {
LOGERR("execlp pigz ERROR!\n");
close(input_fd);
close(pipes[0]);
close(pipes[3]);
_exit(-1);
}
} else {
// Parent
close(pipes[0]); // Close pipes not used by parent
close(pipes[1]);
close(pipes[3]);
fd = pipes[2];
if(tar_fdopen(&t, fd, charRootDir, NULL, O_RDONLY | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;
}
}
}
} else if (Archive_Current_Type == 2) {
LOGINFO("Opening encrypted backup...\n");
int oaesfd[2];
int input_fd = open(tarfn.c_str(), O_RDONLY | O_LARGEFILE);
if (input_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
return -1;
}
if (pipe(oaesfd) < 0) {
LOGERR("Error creating pipe\n");
close(input_fd);
return -1;
}
oaes_pid = fork();
if (oaes_pid < 0) {
LOGERR("fork() failed\n");
close(input_fd);
close(oaesfd[0]);
close(oaesfd[1]);
return -1;
} else if (oaes_pid == 0) {
// Child
close(oaesfd[0]); // Close unused pipe
close(0); // close stdin
dup2(oaesfd[1], 1); // remap stdout
dup2(input_fd, 0); // remap input fd to stdin
if (execlp("openaes", "openaes", "dec", "--key", password.c_str(), NULL) < 0) {
LOGERR("execlp openaes ERROR!\n");
close(input_fd);
close(oaesfd[1]);
_exit(-1);
}
} else {
// Parent
close(oaesfd[1]); // close parent output
fd = oaesfd[0]; // copy parent input
if(tar_fdopen(&t, fd, charRootDir, NULL, O_RDONLY | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;
}
}
} else if (Archive_Current_Type == 1) {
LOGINFO("Opening as a gzip...\n");
int pigzfd[2];
int input_fd = open(tarfn.c_str(), O_RDONLY | O_LARGEFILE);
if (input_fd < 0) {
LOGERR("Failed to open '%s'\n", tarfn.c_str());
return -1;
}
if (pipe(pigzfd) < 0) {
LOGERR("Error creating pipe\n");
close(input_fd);
return -1;
}
pigz_pid = fork();
if (pigz_pid < 0) {
LOGERR("fork() failed\n");
close(input_fd);
close(pigzfd[0]);
close(pigzfd[1]);
return -1;
} else if (pigz_pid == 0) {
// Child
close(pigzfd[0]);
dup2(input_fd, 0); // remap input fd to stdin
dup2(pigzfd[1], 1); // remap stdout
if (execlp("pigz", "pigz", "-d", "-c", NULL) < 0) {
close(pigzfd[1]);
close(input_fd);
LOGERR("execlp openaes ERROR!\n");
_exit(-1);
}
} else {
// Parent
close(pigzfd[1]); // close parent output
fd = pigzfd[0]; // copy parent input
if(tar_fdopen(&t, fd, charRootDir, NULL, O_RDONLY | O_LARGEFILE, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH, TAR_GNU | TAR_STORE_SELINUX) != 0) {
close(fd);
LOGERR("tar_fdopen failed\n");
return -1;