-
Notifications
You must be signed in to change notification settings - Fork 7.7k
/
mcrypt.c
1273 lines (1056 loc) · 34 KB
/
mcrypt.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
/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.0 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_0.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Sascha Schumann <sascha@schumann.cx> |
| Derick Rethans <derick@derickrethans.nl> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if HAVE_LIBMCRYPT
#include "php_mcrypt.h"
#include "fcntl.h"
#define NON_FREE
#define MCRYPT2
#include "mcrypt.h"
#include "php_ini.h"
#include "php_globals.h"
#include "ext/standard/info.h"
static int le_mcrypt;
function_entry mcrypt_functions[] = {
PHP_FE(mcrypt_ecb, NULL)
PHP_FE(mcrypt_cbc, NULL)
PHP_FE(mcrypt_cfb, NULL)
PHP_FE(mcrypt_ofb, NULL)
PHP_FE(mcrypt_get_key_size, NULL)
PHP_FE(mcrypt_get_block_size, NULL)
PHP_FE(mcrypt_get_cipher_name, NULL)
PHP_FE(mcrypt_create_iv, NULL)
PHP_FE(mcrypt_list_algorithms, NULL)
PHP_FE(mcrypt_list_modes, NULL)
PHP_FE(mcrypt_get_iv_size, NULL)
PHP_FE(mcrypt_encrypt, NULL)
PHP_FE(mcrypt_decrypt, NULL)
PHP_FE(mcrypt_module_open, NULL)
PHP_FE(mcrypt_generic_init, NULL)
PHP_FE(mcrypt_generic, NULL)
PHP_FE(mdecrypt_generic, NULL)
PHP_FE(mcrypt_generic_end, NULL)
PHP_FE(mcrypt_generic_deinit, NULL)
PHP_FE(mcrypt_enc_self_test, NULL)
PHP_FE(mcrypt_enc_is_block_algorithm_mode, NULL)
PHP_FE(mcrypt_enc_is_block_algorithm, NULL)
PHP_FE(mcrypt_enc_is_block_mode, NULL)
PHP_FE(mcrypt_enc_get_block_size, NULL)
PHP_FE(mcrypt_enc_get_key_size, NULL)
PHP_FE(mcrypt_enc_get_supported_key_sizes, NULL)
PHP_FE(mcrypt_enc_get_iv_size, NULL)
PHP_FE(mcrypt_enc_get_algorithms_name, NULL)
PHP_FE(mcrypt_enc_get_modes_name, NULL)
PHP_FE(mcrypt_module_self_test, NULL)
PHP_FE(mcrypt_module_is_block_algorithm_mode, NULL)
PHP_FE(mcrypt_module_is_block_algorithm, NULL)
PHP_FE(mcrypt_module_is_block_mode, NULL)
PHP_FE(mcrypt_module_get_algo_block_size, NULL)
PHP_FE(mcrypt_module_get_algo_key_size, NULL)
PHP_FE(mcrypt_module_get_supported_key_sizes, NULL)
PHP_FE(mcrypt_module_close, NULL)
{NULL, NULL, NULL}
};
static PHP_MINFO_FUNCTION(mcrypt);
static PHP_MINIT_FUNCTION(mcrypt);
static PHP_MSHUTDOWN_FUNCTION(mcrypt);
zend_module_entry mcrypt_module_entry = {
STANDARD_MODULE_HEADER,
"mcrypt",
mcrypt_functions,
PHP_MINIT(mcrypt), PHP_MSHUTDOWN(mcrypt),
NULL, NULL,
PHP_MINFO(mcrypt),
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES,
};
ZEND_DECLARE_MODULE_GLOBALS(mcrypt)
#ifdef COMPILE_DL_MCRYPT
ZEND_GET_MODULE(mcrypt)
#endif
#define MCRYPT_ARGS2 \
zval **cipher, **data, **key, **mode; \
int td; \
char *ndata; \
size_t bsize; \
size_t nr; \
size_t nsize
#define MCRYPT_ARGS \
MCRYPT_ARGS2; \
zval **iv
#define MCRYPT_CONVERT \
convert_to_string_ex(cipher); \
convert_to_string_ex(mode); \
convert_to_string_ex(data); \
convert_to_string_ex(key)
#define MCRYPT_CONVERT_WO_MODE \
convert_to_string_ex(cipher); \
convert_to_string_ex(data); \
convert_to_string_ex(key)
#define MCRYPT_SIZE \
bsize = mcrypt_get_block_size(Z_LVAL_PP(cipher)); \
nr = (Z_STRLEN_PP(data) + bsize - 1) / bsize; \
nsize = nr * bsize
#define MCRYPT_CHECK_TD_CPY \
if (td < 0) { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_FAILED); \
RETURN_FALSE; \
} \
ndata = ecalloc(nr, bsize); \
memcpy(ndata, Z_STRVAL_PP(data), Z_STRLEN_PP(data))
#define MCRYPT_CHECK_IV \
convert_to_string_ex(iv); \
if (Z_STRLEN_PP(iv) != bsize) { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_IV_WRONG_SIZE); \
RETURN_FALSE; \
}
#define MCRYPT_ACTION(x) \
if (Z_LVAL_PP(mode) == 0) { \
mcrypt_##x(td, ndata, nsize); \
} else { \
mdecrypt_##x(td, ndata, nsize); \
} \
end_mcrypt_##x(td)
#define MCRYPT_IV_WRONG_SIZE "The IV parameter must be as long as the blocksize"
#define MCRYPT_ENCRYPT 0
#define MCRYPT_DECRYPT 1
#define MCRYPT_GET_INI \
cipher_dir_string = MCG(algorithms_dir); \
module_dir_string = MCG(modes_dir);
#define MCRYPT_CHECK_PARAM_COUNT(a,b) \
if (argc < (a) || argc > (b)) { \
WRONG_PARAM_COUNT; \
}
/*
* #warning is not ANSI C
* #warning Invalidate resource if the param count is wrong, or other problems
* #warning occurred during functions.
*/
#define MCRYPT_GET_CRYPT_ARGS \
switch (argc) { \
case 5: \
if (zend_get_parameters_ex(5, &cipher, &key, &data, &mode, &iv) == FAILURE) { \
WRONG_PARAM_COUNT; \
} \
convert_to_string_ex(iv); \
break; \
case 4: \
if (zend_get_parameters_ex(4, &cipher, &key, &data, &mode) == FAILURE) { \
WRONG_PARAM_COUNT; \
} \
iv = NULL; \
break; \
default: \
WRONG_PARAM_COUNT; \
}
#define MCRYPT_GET_TD_ARG \
zval **mcryptind; \
MCRYPT td; \
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &mcryptind) == FAILURE) { \
WRONG_PARAM_COUNT \
} \
ZEND_FETCH_RESOURCE (td, MCRYPT, mcryptind, -1, "MCrypt", le_mcrypt);
#define MCRYPT_GET_MODE_DIR_ARGS(DIRECTORY) \
char *dir = NULL; \
int dir_len; \
char *module; \
int module_len; \
if (zend_parse_parameters (ZEND_NUM_ARGS() TSRMLS_CC, \
"s|s", &module, &module_len, &dir, &dir_len) == FAILURE) { \
return; \
}
#define MCRYPT_OPEN_MODULE_FAILED "Module initialization failed"
#define MCRYPT_ENTRY2_2_4(a,b) REGISTER_STRING_CONSTANT("MCRYPT_" #a, b, CONST_PERSISTENT)
#define MCRYPT_ENTRY2_4(a) MCRYPT_ENTRY_NAMED(a, a)
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("mcrypt.algorithms_dir", NULL, PHP_INI_ALL, OnUpdateString, algorithms_dir, zend_mcrypt_globals, mcrypt_globals)
STD_PHP_INI_ENTRY("mcrypt.modes_dir", NULL, PHP_INI_ALL, OnUpdateString, modes_dir, zend_mcrypt_globals, mcrypt_globals)
PHP_INI_END()
static void php_mcrypt_module_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
MCRYPT td = (MCRYPT) rsrc->ptr;
mcrypt_module_close (td);
}
static PHP_MINIT_FUNCTION(mcrypt)
{
#if defined(ZTS)
ZEND_INIT_MODULE_GLOBALS(mcrypt, NULL, NULL);
Z_TYPE(mcrypt_module_entry) = type;
#endif
le_mcrypt = zend_register_list_destructors_ex(php_mcrypt_module_dtor, NULL, "mcrypt", module_number);
/* modes for mcrypt_??? routines */
REGISTER_LONG_CONSTANT("MCRYPT_ENCRYPT", 0, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_DECRYPT", 1, CONST_PERSISTENT);
/* sources for mcrypt_create_iv */
REGISTER_LONG_CONSTANT("MCRYPT_DEV_RANDOM", 0, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_DEV_URANDOM", 1, CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("MCRYPT_RAND", 2, CONST_PERSISTENT);
/* ciphers */
MCRYPT_ENTRY2_2_4(3DES, "tripledes");
MCRYPT_ENTRY2_2_4(ARCFOUR_IV, "arcfour-iv");
MCRYPT_ENTRY2_2_4(ARCFOUR, "arcfour");
MCRYPT_ENTRY2_2_4(BLOWFISH, "blowfish");
MCRYPT_ENTRY2_2_4(BLOWFISH_COMPAT, "blowfish-compat");
MCRYPT_ENTRY2_2_4(CAST_128, "cast-128");
MCRYPT_ENTRY2_2_4(CAST_256, "cast-256");
MCRYPT_ENTRY2_2_4(CRYPT, "crypt");
MCRYPT_ENTRY2_2_4(DES, "des");
MCRYPT_ENTRY2_2_4(ENIGNA, "crypt");
MCRYPT_ENTRY2_2_4(GOST, "gost");
MCRYPT_ENTRY2_2_4(LOKI97, "loki97");
MCRYPT_ENTRY2_2_4(PANAMA, "panama");
MCRYPT_ENTRY2_2_4(RC2, "rc2");
MCRYPT_ENTRY2_2_4(RIJNDAEL_128, "rijndael-128");
MCRYPT_ENTRY2_2_4(RIJNDAEL_192, "rijndael-192");
MCRYPT_ENTRY2_2_4(RIJNDAEL_256, "rijndael-256");
MCRYPT_ENTRY2_2_4(SAFER64, "safer-sk64");
MCRYPT_ENTRY2_2_4(SAFER128, "safer-sk128");
MCRYPT_ENTRY2_2_4(SAFERPLUS, "saferplus");
MCRYPT_ENTRY2_2_4(SERPENT, "serpent");
MCRYPT_ENTRY2_2_4(THREEWAY, "threeway");
MCRYPT_ENTRY2_2_4(TRIPLEDES, "tripledes");
MCRYPT_ENTRY2_2_4(TWOFISH, "twofish");
MCRYPT_ENTRY2_2_4(WAKE, "wake");
MCRYPT_ENTRY2_2_4(XTEA, "xtea");
MCRYPT_ENTRY2_2_4(IDEA, "idea");
MCRYPT_ENTRY2_2_4(MARS, "mars");
MCRYPT_ENTRY2_2_4(RC6, "rc6");
MCRYPT_ENTRY2_2_4(SKIPJACK, "skipjack");
/* modes */
MCRYPT_ENTRY2_2_4(MODE_CBC, "cbc");
MCRYPT_ENTRY2_2_4(MODE_CFB, "cfb");
MCRYPT_ENTRY2_2_4(MODE_ECB, "ecb");
MCRYPT_ENTRY2_2_4(MODE_NOFB, "nofb");
MCRYPT_ENTRY2_2_4(MODE_OFB, "ofb");
MCRYPT_ENTRY2_2_4(MODE_STREAM, "stream");
REGISTER_INI_ENTRIES();
return SUCCESS;
}
static PHP_MSHUTDOWN_FUNCTION(mcrypt)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
#include "ext/standard/php_smart_str.h"
PHP_MINFO_FUNCTION(mcrypt)
{
char **modules;
char mcrypt_api_no[16];
int i, count;
smart_str tmp1 = {0};
smart_str tmp2 = {0};
modules = mcrypt_list_algorithms(MCG(algorithms_dir), &count);
if (count == 0) {
smart_str_appends(&tmp1, "none");
}
for (i = 0; i < count; i++) {
smart_str_appends(&tmp1, modules[i]);
smart_str_appendc(&tmp1, ' ');
}
smart_str_0(&tmp1);
mcrypt_free_p(modules, count);
modules = mcrypt_list_modes(MCG(modes_dir), &count);
if (count == 0) {
smart_str_appends(&tmp2, "none");
}
for (i = 0; i < count; i++) {
smart_str_appends(&tmp2, modules[i]);
smart_str_appendc(&tmp2, ' ');
}
smart_str_0 (&tmp2);
mcrypt_free_p (modules, count);
snprintf (mcrypt_api_no, 16, "%d", MCRYPT_API_VERSION);
php_info_print_table_start();
php_info_print_table_header(2, "mcrypt support", "enabled");
php_info_print_table_row(2, "Version", LIBMCRYPT_VERSION);
php_info_print_table_row(2, "Api No", mcrypt_api_no);
php_info_print_table_row(2, "Supported ciphers", tmp1.c);
php_info_print_table_row(2, "Supported modes", tmp2.c);
smart_str_free(&tmp1);
smart_str_free(&tmp2);
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
typedef enum {
RANDOM = 0,
URANDOM,
RAND
} iv_source;
/* {{{ proto resource mcrypt_module_open(string cipher, string cipher_directory, string mode, string mode_directory)
Opens the module of the algorithm and the mode to be used */
PHP_FUNCTION(mcrypt_module_open)
{
char *cipher, *cipher_dir;
char *mode, *mode_dir;
int cipher_len, cipher_dir_len;
int mode_len, mode_dir_len;
MCRYPT td;
if (zend_parse_parameters (ZEND_NUM_ARGS() TSRMLS_CC, "ssss",
&cipher, &cipher_len, &cipher_dir, &cipher_dir_len,
&mode, &mode_len, &mode_dir, &mode_dir_len)) {
return;
}
td = mcrypt_module_open (
cipher,
cipher_dir_len > 0 ? cipher_dir : MCG(algorithms_dir),
mode,
mode_dir_len > 0 ? mode_dir : MCG(modes_dir)
);
if (td == MCRYPT_FAILED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not open encryption module");
RETURN_FALSE;
} else {
ZEND_REGISTER_RESOURCE(return_value, td, le_mcrypt);
}
}
/* }}} */
/* {{{ proto int mcrypt_generic_init(resource td, string key, string iv)
This function initializes all buffers for the specific module */
PHP_FUNCTION(mcrypt_generic_init)
{
zval **key, **iv;
zval **mcryptind;
unsigned char *key_s, *iv_s;
int max_key_size, key_size, iv_size;
MCRYPT td;
int argc;
int result = 0;
argc = ZEND_NUM_ARGS();
MCRYPT_CHECK_PARAM_COUNT (3,3)
zend_get_parameters_ex(3, &mcryptind, &key, &iv);
ZEND_FETCH_RESOURCE(td, MCRYPT, mcryptind, -1, "MCrypt", le_mcrypt);
convert_to_string_ex(key);
convert_to_string_ex(iv);
max_key_size = mcrypt_enc_get_key_size(td);
iv_size = mcrypt_enc_get_iv_size(td);
if (Z_STRLEN_PP(key) == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Key size is 0");
}
key_s = emalloc(Z_STRLEN_PP(key));
memset(key_s, 0, Z_STRLEN_PP(key));
iv_s = emalloc(iv_size + 1);
memset(iv_s, 0, iv_size + 1);
if (Z_STRLEN_PP(key) > max_key_size) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Key size too large; supplied length: %d, max: %d", Z_STRLEN_PP(key), max_key_size);
key_size = max_key_size;
} else {
key_size = Z_STRLEN_PP(key);
}
memcpy(key_s, Z_STRVAL_PP(key), Z_STRLEN_PP(key));
if (Z_STRLEN_PP(iv) != iv_size) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Iv size incorrect; supplied length: %d, needed: %d", Z_STRLEN_PP(iv), iv_size);
}
memcpy(iv_s, Z_STRVAL_PP(iv), iv_size);
result = mcrypt_generic_init(td, key_s, key_size, iv_s);
/* If this function fails, close the mcrypt module to prevent crashes
* when further functions want to access this resource */
if (result < 0) {
zend_list_delete(Z_LVAL_PP(mcryptind));
switch (result) {
case -3:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Key length incorrect");
break;
case -4:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Memory allocation error");
break;
case -1:
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown error");
break;
}
}
RETVAL_LONG(result);
efree(iv_s);
efree(key_s);
}
/* }}} */
/* {{{ proto string mcrypt_generic(resource td, string data)
This function encrypts the plaintext */
PHP_FUNCTION(mcrypt_generic)
{
zval **data, **mcryptind;
MCRYPT td;
int argc;
unsigned char* data_s;
int block_size, data_size;
argc = ZEND_NUM_ARGS();
MCRYPT_CHECK_PARAM_COUNT (2,2)
zend_get_parameters_ex(2, &mcryptind, &data);
ZEND_FETCH_RESOURCE(td, MCRYPT, mcryptind, -1, "MCrypt", le_mcrypt);
convert_to_string_ex(data);
/* Check blocksize */
if (mcrypt_enc_is_block_mode(td) == 1) { /* It's a block algorithm */
block_size = mcrypt_enc_get_block_size(td);
data_size = (((Z_STRLEN_PP(data) - 1) / block_size) + 1) * block_size;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, Z_STRVAL_PP(data), Z_STRLEN_PP(data));
} else { /* It's not a block algorithm */
data_size = Z_STRLEN_PP(data);
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, Z_STRVAL_PP(data), Z_STRLEN_PP(data));
}
mcrypt_generic(td, data_s, data_size);
data_s[data_size] = '\0';
RETVAL_STRINGL(data_s, data_size, 1);
efree(data_s);
}
/* }}} */
/* {{{ proto string mdecrypt_generic(resource td, string data)
This function decrypts the plaintext */
PHP_FUNCTION(mdecrypt_generic)
{
zval **data, **mcryptind;
MCRYPT td;
int argc;
char* data_s;
int block_size, data_size;
argc = ZEND_NUM_ARGS();
MCRYPT_CHECK_PARAM_COUNT (2,2)
zend_get_parameters_ex(2, &mcryptind, &data);
ZEND_FETCH_RESOURCE(td, MCRYPT, mcryptind, -1, "MCrypt", le_mcrypt);
convert_to_string_ex(data);
/* Check blocksize */
if (mcrypt_enc_is_block_mode(td) == 1) { /* It's a block algorithm */
block_size = mcrypt_enc_get_block_size(td);
data_size = (((Z_STRLEN_PP(data) - 1) / block_size) + 1) * block_size;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, Z_STRVAL_PP(data), Z_STRLEN_PP(data));
} else { /* It's not a block algorithm */
data_size = Z_STRLEN_PP(data);
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, Z_STRVAL_PP(data), Z_STRLEN_PP(data));
}
mdecrypt_generic(td, data_s, data_size);
RETVAL_STRINGL(data_s, data_size, 1);
efree(data_s);
}
/* }}} */
/* {{{ proto array mcrypt_enc_get_supported_key_sizes(resource td)
This function decrypts the crypttext */
PHP_FUNCTION(mcrypt_enc_get_supported_key_sizes)
{
int i, count = 0;
int *key_sizes;
MCRYPT_GET_TD_ARG
array_init(return_value);
key_sizes = mcrypt_enc_get_supported_key_sizes(td, &count);
for (i = 0; i < count; i++) {
add_index_long(return_value, i, key_sizes[i]);
}
mcrypt_free(key_sizes);
}
/* }}} */
/* {{{ proto int mcrypt_enc_self_test(resource td)
This function runs the self test on the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_self_test)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_self_test(td));
}
/* }}} */
/* {{{ proto bool mcrypt_module_close(resource td)
Free the descriptor td */
PHP_FUNCTION(mcrypt_module_close)
{
MCRYPT_GET_TD_ARG
zend_list_delete(Z_LVAL_PP(mcryptind));
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool mcrypt_generic_end(resource td)
This function terminates encrypt specified by the descriptor td */
PHP_FUNCTION(mcrypt_generic_end)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "This function is deprecated, please use mcrypt_generic_deinit()");
zif_mcrypt_generic_deinit(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */
/* {{{ proto bool mcrypt_generic_deinit(resource td)
This function terminates encrypt specified by the descriptor td */
PHP_FUNCTION(mcrypt_generic_deinit)
{
MCRYPT_GET_TD_ARG
if (mcrypt_generic_deinit(td) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not terminate encryption specifier");
RETURN_FALSE
}
RETURN_TRUE
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_algorithm_mode(resource td)
Returns TRUE if the mode is for use with block algorithms */
PHP_FUNCTION(mcrypt_enc_is_block_algorithm_mode)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_algorithm_mode(td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_algorithm(resource td)
Returns TRUE if the alrogithm is a block algorithms */
PHP_FUNCTION(mcrypt_enc_is_block_algorithm)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_algorithm(td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto bool mcrypt_enc_is_block_mode(resource td)
Returns TRUE if the mode outputs blocks */
PHP_FUNCTION(mcrypt_enc_is_block_mode)
{
MCRYPT_GET_TD_ARG
if (mcrypt_enc_is_block_mode(td) == 1) {
RETURN_TRUE
} else {
RETURN_FALSE
}
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_block_size(resource td)
Returns the block size of the cipher specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_block_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_block_size(td));
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_key_size(resource td)
Returns the maximum supported key size in bytes of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_key_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_key_size(td));
}
/* }}} */
/* {{{ proto int mcrypt_enc_get_iv_size(resource td)
Returns the size of the IV in bytes of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_iv_size)
{
MCRYPT_GET_TD_ARG
RETURN_LONG(mcrypt_enc_get_iv_size(td));
}
/* }}} */
/* {{{ proto string mcrypt_enc_get_algorithms_name(resource td)
Returns the name of the algorithm specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_algorithms_name)
{
char *name;
MCRYPT_GET_TD_ARG
name = mcrypt_enc_get_algorithms_name(td);
RETVAL_STRING(name, 1);
mcrypt_free(name);
}
/* }}} */
/* {{{ proto string mcrypt_enc_get_modes_name(resource td)
Returns the name of the mode specified by the descriptor td */
PHP_FUNCTION(mcrypt_enc_get_modes_name)
{
char *name;
MCRYPT_GET_TD_ARG
name = mcrypt_enc_get_modes_name(td);
RETVAL_STRING(name, 1);
mcrypt_free(name);
}
/* }}} */
/* {{{ proto bool mcrypt_module_self_test(string algorithm [, string lib_dir])
Does a self test of the module "module" */
PHP_FUNCTION(mcrypt_module_self_test)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir);
if (mcrypt_module_self_test(module, dir) == 0) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_algorithm_mode(string mode [, string lib_dir])
Returns TRUE if the mode is for use with block algorithms */
PHP_FUNCTION(mcrypt_module_is_block_algorithm_mode)
{
MCRYPT_GET_MODE_DIR_ARGS(modes_dir)
if (mcrypt_module_is_block_algorithm_mode(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_algorithm(string algorithm [, string lib_dir])
Returns TRUE if the algorithm is a block algorithm */
PHP_FUNCTION(mcrypt_module_is_block_algorithm)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
if (mcrypt_module_is_block_algorithm(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool mcrypt_module_is_block_mode(string mode [, string lib_dir])
Returns TRUE if the mode outputs blocks of bytes */
PHP_FUNCTION(mcrypt_module_is_block_mode)
{
MCRYPT_GET_MODE_DIR_ARGS(modes_dir)
if (mcrypt_module_is_block_mode(module, dir) == 1) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int mcrypt_module_get_algo_block_size(string algorithm [, string lib_dir])
Returns the block size of the algorithm */
PHP_FUNCTION(mcrypt_module_get_algo_block_size)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
RETURN_LONG(mcrypt_module_get_algo_block_size(module, dir));
}
/* }}} */
/* {{{ proto int mcrypt_module_get_algo_key_size(string algorithm [, string lib_dir])
Returns the maximum supported key size of the algorithm */
PHP_FUNCTION(mcrypt_module_get_algo_key_size)
{
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir);
RETURN_LONG(mcrypt_module_get_algo_key_size(module, dir));
}
/* }}} */
/* {{{ proto array mcrypt_module_get_supported_key_sizes(string algorithm [, string lib_dir])
This function decrypts the crypttext */
PHP_FUNCTION(mcrypt_module_get_supported_key_sizes)
{
int i, count = 0;
int *key_sizes;
MCRYPT_GET_MODE_DIR_ARGS(algorithms_dir)
array_init(return_value);
key_sizes = mcrypt_module_get_algo_supported_key_sizes(module, dir, &count);
for (i = 0; i < count; i++) {
add_index_long(return_value, i, key_sizes[i]);
}
mcrypt_free(key_sizes);
}
/* }}} */
/* {{{ proto array mcrypt_list_algorithms([string lib_dir])
List all algorithms in "module_dir" */
PHP_FUNCTION(mcrypt_list_algorithms)
{
char **modules;
char *lib_dir = MCG(algorithms_dir);
int lib_dir_len;
int i, count;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s",
&lib_dir, &lib_dir_len) == FAILURE) {
return;
}
array_init(return_value);
modules = mcrypt_list_algorithms(lib_dir, &count);
if (count == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "No algorithms found in module dir");
}
for (i = 0; i < count; i++) {
add_index_string(return_value, i, modules[i], 1);
}
mcrypt_free_p(modules, count);
}
/* }}} */
/* {{{ proto array mcrypt_list_modes([string lib_dir])
List all modes "module_dir" */
PHP_FUNCTION(mcrypt_list_modes)
{
char **modules;
char *lib_dir = MCG(modes_dir);
int lib_dir_len;
int i, count;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s",
&lib_dir, &lib_dir_len) == FAILURE) {
return;
}
array_init(return_value);
modules = mcrypt_list_modes(lib_dir, &count);
if (count == 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "No modes found in module dir");
}
for (i = 0; i < count; i++) {
add_index_string(return_value, i, modules[i], 1);
}
mcrypt_free_p(modules, count);
}
/* }}} */
/* {{{ proto int mcrypt_get_key_size(string cipher, string module)
Get the key size of cipher */
PHP_FUNCTION(mcrypt_get_key_size)
{
char *cipher;
char *module;
int cipher_len, module_len;
char *cipher_dir_string;
char *module_dir_string;
MCRYPT td;
MCRYPT_GET_INI
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss",
&cipher, &cipher_len, &module, &module_len) == FAILURE) {
return;
}
td = mcrypt_module_open(cipher, cipher_dir_string, module, module_dir_string);
if (td != MCRYPT_FAILED) {
RETVAL_LONG(mcrypt_enc_get_key_size(td));
mcrypt_module_close(td);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_OPEN_MODULE_FAILED);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int mcrypt_get_block_size(string cipher, string module)
Get the key size of cipher */
PHP_FUNCTION(mcrypt_get_block_size)
{
char *cipher;
char *module;
int cipher_len, module_len;
char *cipher_dir_string;
char *module_dir_string;
MCRYPT td;
MCRYPT_GET_INI
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss",
&cipher, &cipher_len, &module, &module_len) == FAILURE) {
return;
}
td = mcrypt_module_open(cipher, cipher_dir_string, module, module_dir_string);
if (td != MCRYPT_FAILED) {
RETVAL_LONG(mcrypt_enc_get_block_size(td));
mcrypt_module_close(td);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_OPEN_MODULE_FAILED);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int mcrypt_get_iv_size(string cipher, string module)
Get the IV size of cipher (Usually the same as the blocksize) */
PHP_FUNCTION(mcrypt_get_iv_size)
{
char *cipher;
char *module;
int cipher_len, module_len;
char *cipher_dir_string;
char *module_dir_string;
MCRYPT td;
MCRYPT_GET_INI
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss",
&cipher, &cipher_len, &module, &module_len) == FAILURE) {
return;
}
td = mcrypt_module_open(cipher, cipher_dir_string, module, module_dir_string);
if (td != MCRYPT_FAILED) {
RETVAL_LONG(mcrypt_enc_get_iv_size(td));
mcrypt_module_close(td);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_OPEN_MODULE_FAILED);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string mcrypt_get_cipher_name(string cipher)
Get the key size of cipher */
PHP_FUNCTION(mcrypt_get_cipher_name)
{
char *cipher_dir_string;
char *module_dir_string;
char *cipher_name;
char *cipher;
int cipher_len;
MCRYPT td;
MCRYPT_GET_INI
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
&cipher, &cipher_len) == FAILURE) {
return;
}
/* The code below is actually not very nice, but I didn't see a better
* method */
td = mcrypt_module_open(cipher, cipher_dir_string, "ecb", module_dir_string);
if (td != MCRYPT_FAILED) {
cipher_name = mcrypt_enc_get_algorithms_name(td);
mcrypt_module_close(td);
RETVAL_STRING(cipher_name,1);
mcrypt_free(cipher_name);
} else {
td = mcrypt_module_open(cipher, cipher_dir_string, "stream", module_dir_string);
if (td != MCRYPT_FAILED) {
cipher_name = mcrypt_enc_get_algorithms_name(td);
mcrypt_module_close(td);
RETVAL_STRING(cipher_name,1);
mcrypt_free(cipher_name);
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, MCRYPT_OPEN_MODULE_FAILED);
RETURN_FALSE;
}
}
}
/* }}} */
static void php_mcrypt_do_crypt (char* cipher, zval **key, zval **data, char *mode, zval **iv, int argc, int dencrypt, zval* return_value TSRMLS_DC)
{
char *cipher_dir_string;
char *module_dir_string;
int block_size, max_key_length, use_key_length, i, count, iv_size;
unsigned long int data_size;
int *key_length_sizes;