Home Home > GIT Browse
summaryrefslogtreecommitdiff
blob: b92eadf92d72a06bcfebc64b345d3590977e5a40 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
/*
 * Scatterlist Cryptographic API.
 *
 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
 * Copyright (c) 2002 David S. Miller (davem@redhat.com)
 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
 *
 * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
 * and Nettle, by Niels Möller.
 * 
 * This program 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 2 of the License, or (at your option) 
 * any later version.
 *
 */
#ifndef _LINUX_CRYPTO_H
#define _LINUX_CRYPTO_H

#include <linux/atomic.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/uaccess.h>

/*
 * Algorithm masks and types.
 */
#define CRYPTO_ALG_TYPE_MASK		0x0000000f
#define CRYPTO_ALG_TYPE_CIPHER		0x00000001
#define CRYPTO_ALG_TYPE_COMPRESS	0x00000002
#define CRYPTO_ALG_TYPE_AEAD		0x00000003
#define CRYPTO_ALG_TYPE_BLKCIPHER	0x00000004
#define CRYPTO_ALG_TYPE_ABLKCIPHER	0x00000005
#define CRYPTO_ALG_TYPE_GIVCIPHER	0x00000006
#define CRYPTO_ALG_TYPE_DIGEST		0x00000008
#define CRYPTO_ALG_TYPE_HASH		0x00000008
#define CRYPTO_ALG_TYPE_SHASH		0x00000009
#define CRYPTO_ALG_TYPE_AHASH		0x0000000a
#define CRYPTO_ALG_TYPE_RNG		0x0000000c
#define CRYPTO_ALG_TYPE_PCOMPRESS	0x0000000f

#define CRYPTO_ALG_TYPE_HASH_MASK	0x0000000e
#define CRYPTO_ALG_TYPE_AHASH_MASK	0x0000000c
#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK	0x0000000c

#define CRYPTO_ALG_LARVAL		0x00000010
#define CRYPTO_ALG_DEAD			0x00000020
#define CRYPTO_ALG_DYING		0x00000040
#define CRYPTO_ALG_ASYNC		0x00000080

/*
 * Set this bit if and only if the algorithm requires another algorithm of
 * the same type to handle corner cases.
 */
#define CRYPTO_ALG_NEED_FALLBACK	0x00000100

/*
 * This bit is set for symmetric key ciphers that have already been wrapped
 * with a generic IV generator to prevent them from being wrapped again.
 */
#define CRYPTO_ALG_GENIV		0x00000200

/*
 * Set if the algorithm has passed automated run-time testing.  Note that
 * if there is no run-time testing for a given algorithm it is considered
 * to have passed.
 */

#define CRYPTO_ALG_TESTED		0x00000400

/*
 * Set if the algorithm is an instance that is build from templates.
 */
#define CRYPTO_ALG_INSTANCE		0x00000800

/* Set this bit if the algorithm provided is hardware accelerated but
 * not available to userspace via instruction set or so.
 */
#define CRYPTO_ALG_KERN_DRIVER_ONLY	0x00001000

/*
 * Transform masks and values (for crt_flags).
 */
#define CRYPTO_TFM_REQ_MASK		0x000fff00
#define CRYPTO_TFM_RES_MASK		0xfff00000

#define CRYPTO_TFM_REQ_WEAK_KEY		0x00000100
#define CRYPTO_TFM_REQ_MAY_SLEEP	0x00000200
#define CRYPTO_TFM_REQ_MAY_BACKLOG	0x00000400
#define CRYPTO_TFM_RES_WEAK_KEY		0x00100000
#define CRYPTO_TFM_RES_BAD_KEY_LEN   	0x00200000
#define CRYPTO_TFM_RES_BAD_KEY_SCHED 	0x00400000
#define CRYPTO_TFM_RES_BAD_BLOCK_LEN 	0x00800000
#define CRYPTO_TFM_RES_BAD_FLAGS 	0x01000000

/*
 * Miscellaneous stuff.
 */
#define CRYPTO_MAX_ALG_NAME		64

/*
 * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
 * declaration) is used to ensure that the crypto_tfm context structure is
 * aligned correctly for the given architecture so that there are no alignment
 * faults for C data types.  In particular, this is required on platforms such
 * as arm where pointers are 32-bit aligned but there are data types such as
 * u64 which require 64-bit alignment.
 */
#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN

#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))

struct scatterlist;
struct crypto_ablkcipher;
struct crypto_async_request;
struct crypto_aead;
struct crypto_blkcipher;
struct crypto_hash;
struct crypto_rng;
struct crypto_tfm;
struct crypto_type;
struct aead_givcrypt_request;
struct skcipher_givcrypt_request;

typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);

struct crypto_async_request {
	struct list_head list;
	crypto_completion_t complete;
	void *data;
	struct crypto_tfm *tfm;

	u32 flags;
};

struct ablkcipher_request {
	struct crypto_async_request base;

	unsigned int nbytes;

	void *info;

	struct scatterlist *src;
	struct scatterlist *dst;

	void *__ctx[] CRYPTO_MINALIGN_ATTR;
};

/**
 *	struct aead_request - AEAD request
 *	@base: Common attributes for async crypto requests
 *	@assoclen: Length in bytes of associated data for authentication
 *	@cryptlen: Length of data to be encrypted or decrypted
 *	@iv: Initialisation vector
 *	@assoc: Associated data
 *	@src: Source data
 *	@dst: Destination data
 *	@__ctx: Start of private context data
 */
struct aead_request {
	struct crypto_async_request base;

	unsigned int assoclen;
	unsigned int cryptlen;

	u8 *iv;

	struct scatterlist *assoc;
	struct scatterlist *src;
	struct scatterlist *dst;

	void *__ctx[] CRYPTO_MINALIGN_ATTR;
};

struct blkcipher_desc {
	struct crypto_blkcipher *tfm;
	void *info;
	u32 flags;
};

struct cipher_desc {
	struct crypto_tfm *tfm;
	void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
			     const u8 *src, unsigned int nbytes);
	void *info;
};

struct hash_desc {
	struct crypto_hash *tfm;
	u32 flags;
};

/*
 * Algorithms: modular crypto algorithm implementations, managed
 * via crypto_register_alg() and crypto_unregister_alg().
 */
struct ablkcipher_alg {
	int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct ablkcipher_request *req);
	int (*decrypt)(struct ablkcipher_request *req);
	int (*givencrypt)(struct skcipher_givcrypt_request *req);
	int (*givdecrypt)(struct skcipher_givcrypt_request *req);

	const char *geniv;

	unsigned int min_keysize;
	unsigned int max_keysize;
	unsigned int ivsize;
};

struct aead_alg {
	int (*setkey)(struct crypto_aead *tfm, const u8 *key,
	              unsigned int keylen);
	int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
	int (*encrypt)(struct aead_request *req);
	int (*decrypt)(struct aead_request *req);
	int (*givencrypt)(struct aead_givcrypt_request *req);
	int (*givdecrypt)(struct aead_givcrypt_request *req);

	const char *geniv;

	unsigned int ivsize;
	unsigned int maxauthsize;
};

struct blkcipher_alg {
	int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct blkcipher_desc *desc,
		       struct scatterlist *dst, struct scatterlist *src,
		       unsigned int nbytes);
	int (*decrypt)(struct blkcipher_desc *desc,
		       struct scatterlist *dst, struct scatterlist *src,
		       unsigned int nbytes);

	const char *geniv;

	unsigned int min_keysize;
	unsigned int max_keysize;
	unsigned int ivsize;
};

struct cipher_alg {
	unsigned int cia_min_keysize;
	unsigned int cia_max_keysize;
	int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
	                  unsigned int keylen);
	void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
};

struct compress_alg {
	int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
			    unsigned int slen, u8 *dst, unsigned int *dlen);
	int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
			      unsigned int slen, u8 *dst, unsigned int *dlen);
};

struct rng_alg {
	int (*rng_make_random)(struct crypto_rng *tfm, u8 *rdata,
			       unsigned int dlen);
	int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);

	unsigned int seedsize;
};


#define cra_ablkcipher	cra_u.ablkcipher
#define cra_aead	cra_u.aead
#define cra_blkcipher	cra_u.blkcipher
#define cra_cipher	cra_u.cipher
#define cra_compress	cra_u.compress
#define cra_rng		cra_u.rng

struct crypto_alg {
	struct list_head cra_list;
	struct list_head cra_users;

	u32 cra_flags;
	unsigned int cra_blocksize;
	unsigned int cra_ctxsize;
	unsigned int cra_alignmask;

	int cra_priority;
	atomic_t cra_refcnt;

	char cra_name[CRYPTO_MAX_ALG_NAME];
	char cra_driver_name[CRYPTO_MAX_ALG_NAME];

	const struct crypto_type *cra_type;

	union {
		struct ablkcipher_alg ablkcipher;
		struct aead_alg aead;
		struct blkcipher_alg blkcipher;
		struct cipher_alg cipher;
		struct compress_alg compress;
		struct rng_alg rng;
	} cra_u;

	int (*cra_init)(struct crypto_tfm *tfm);
	void (*cra_exit)(struct crypto_tfm *tfm);
	void (*cra_destroy)(struct crypto_alg *alg);
	
	struct module *cra_module;
};

/*
 * Algorithm registration interface.
 */
int crypto_register_alg(struct crypto_alg *alg);
int crypto_unregister_alg(struct crypto_alg *alg);
int crypto_register_algs(struct crypto_alg *algs, int count);
int crypto_unregister_algs(struct crypto_alg *algs, int count);

/*
 * Algorithm query interface.
 */
int crypto_has_alg(const char *name, u32 type, u32 mask);

/*
 * Transforms: user-instantiated objects which encapsulate algorithms
 * and core processing logic.  Managed via crypto_alloc_*() and
 * crypto_free_*(), as well as the various helpers below.
 */

struct ablkcipher_tfm {
	int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct ablkcipher_request *req);
	int (*decrypt)(struct ablkcipher_request *req);
	int (*givencrypt)(struct skcipher_givcrypt_request *req);
	int (*givdecrypt)(struct skcipher_givcrypt_request *req);

	struct crypto_ablkcipher *base;

	unsigned int ivsize;
	unsigned int reqsize;
};

struct aead_tfm {
	int (*setkey)(struct crypto_aead *tfm, const u8 *key,
	              unsigned int keylen);
	int (*encrypt)(struct aead_request *req);
	int (*decrypt)(struct aead_request *req);
	int (*givencrypt)(struct aead_givcrypt_request *req);
	int (*givdecrypt)(struct aead_givcrypt_request *req);

	struct crypto_aead *base;

	unsigned int ivsize;
	unsigned int authsize;
	unsigned int reqsize;
};

struct blkcipher_tfm {
	void *iv;
	int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
		      unsigned int keylen);
	int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes);
	int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
		       struct scatterlist *src, unsigned int nbytes);
};

struct cipher_tfm {
	int (*cit_setkey)(struct crypto_tfm *tfm,
	                  const u8 *key, unsigned int keylen);
	void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
	void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
};

struct hash_tfm {
	int (*init)(struct hash_desc *desc);
	int (*update)(struct hash_desc *desc,
		      struct scatterlist *sg, unsigned int nsg);
	int (*final)(struct hash_desc *desc, u8 *out);
	int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
		      unsigned int nsg, u8 *out);
	int (*setkey)(struct crypto_hash *tfm, const u8 *key,
		      unsigned int keylen);
	unsigned int digestsize;
};

struct compress_tfm {
	int (*cot_compress)(struct crypto_tfm *tfm,
	                    const u8 *src, unsigned int slen,
	                    u8 *dst, unsigned int *dlen);
	int (*cot_decompress)(struct crypto_tfm *tfm,
	                      const u8 *src, unsigned int slen,
	                      u8 *dst, unsigned int *dlen);
};

struct rng_tfm {
	int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
			      unsigned int dlen);
	int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
};

#define crt_ablkcipher	crt_u.ablkcipher
#define crt_aead	crt_u.aead
#define crt_blkcipher	crt_u.blkcipher
#define crt_cipher	crt_u.cipher
#define crt_hash	crt_u.hash
#define crt_compress	crt_u.compress
#define crt_rng		crt_u.rng

struct crypto_tfm {

	u32 crt_flags;
	
	union {
		struct ablkcipher_tfm ablkcipher;
		struct aead_tfm aead;
		struct blkcipher_tfm blkcipher;
		struct cipher_tfm cipher;
		struct hash_tfm hash;
		struct compress_tfm compress;
		struct rng_tfm rng;
	} crt_u;

	void (*exit)(struct crypto_tfm *tfm);
	
	struct crypto_alg *__crt_alg;

	void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
};

struct crypto_ablkcipher {
	struct crypto_tfm base;
};

struct crypto_aead {
	struct crypto_tfm base;
};

struct crypto_blkcipher {
	struct crypto_tfm base;
};

struct crypto_cipher {
	struct crypto_tfm base;
};

struct crypto_comp {
	struct crypto_tfm base;
};

struct crypto_hash {
	struct crypto_tfm base;
};

struct crypto_rng {
	struct crypto_tfm base;
};

enum {
	CRYPTOA_UNSPEC,
	CRYPTOA_ALG,
	CRYPTOA_TYPE,
	CRYPTOA_U32,
	__CRYPTOA_MAX,
};

#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)

/* Maximum number of (rtattr) parameters for each template. */
#define CRYPTO_MAX_ATTRS 32

struct crypto_attr_alg {
	char name[CRYPTO_MAX_ALG_NAME];
};

struct crypto_attr_type {
	u32 type;
	u32 mask;
};

struct crypto_attr_u32 {
	u32 num;
};

/* 
 * Transform user interface.
 */
 
struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm);

static inline void crypto_free_tfm(struct crypto_tfm *tfm)
{
	return crypto_destroy_tfm(tfm, tfm);
}

int alg_test(const char *driver, const char *alg, u32 type, u32 mask);

/*
 * Transform helpers which query the underlying algorithm.
 */
static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_name;
}

static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_driver_name;
}

static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_priority;
}

static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
}

static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_blocksize;
}

static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
{
	return tfm->__crt_alg->cra_alignmask;
}

static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
{
	return tfm->crt_flags;
}

static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
{
	tfm->crt_flags |= flags;
}

static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
{
	tfm->crt_flags &= ~flags;
}

static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
{
	return tfm->__crt_ctx;
}

static inline unsigned int crypto_tfm_ctx_alignment(void)
{
	struct crypto_tfm *tfm;
	return __alignof__(tfm->__crt_ctx);
}

/*
 * API wrappers.
 */
static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
	struct crypto_tfm *tfm)
{
	return (struct crypto_ablkcipher *)tfm;
}

static inline u32 crypto_skcipher_type(u32 type)
{
	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	return type;
}

static inline u32 crypto_skcipher_mask(u32 mask)
{
	mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
	return mask;
}

struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
						  u32 type, u32 mask);

static inline struct crypto_tfm *crypto_ablkcipher_tfm(
	struct crypto_ablkcipher *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
{
	crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
}

static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
					u32 mask)
{
	return crypto_has_alg(alg_name, crypto_skcipher_type(type),
			      crypto_skcipher_mask(mask));
}

static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
	struct crypto_ablkcipher *tfm)
{
	return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
}

static inline unsigned int crypto_ablkcipher_ivsize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_ablkcipher_crt(tfm)->ivsize;
}

static inline unsigned int crypto_ablkcipher_blocksize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
}

static inline unsigned int crypto_ablkcipher_alignmask(
	struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
}

static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
{
	return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm));
}

static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm,
					       u32 flags)
{
	crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags);
}

static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
						 u32 flags)
{
	crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
}

static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
					   const u8 *key, unsigned int keylen)
{
	struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);

	return crt->setkey(crt->base, key, keylen);
}

static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
	struct ablkcipher_request *req)
{
	return __crypto_ablkcipher_cast(req->base.tfm);
}

static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
{
	struct ablkcipher_tfm *crt =
		crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
	return crt->encrypt(req);
}

static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
{
	struct ablkcipher_tfm *crt =
		crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
	return crt->decrypt(req);
}

static inline unsigned int crypto_ablkcipher_reqsize(
	struct crypto_ablkcipher *tfm)
{
	return crypto_ablkcipher_crt(tfm)->reqsize;
}

static inline void ablkcipher_request_set_tfm(
	struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
{
	req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
}

static inline struct ablkcipher_request *ablkcipher_request_cast(
	struct crypto_async_request *req)
{
	return container_of(req, struct ablkcipher_request, base);
}

static inline struct ablkcipher_request *ablkcipher_request_alloc(
	struct crypto_ablkcipher *tfm, gfp_t gfp)
{
	struct ablkcipher_request *req;

	req = kmalloc(sizeof(struct ablkcipher_request) +
		      crypto_ablkcipher_reqsize(tfm), gfp);

	if (likely(req))
		ablkcipher_request_set_tfm(req, tfm);

	return req;
}

static inline void ablkcipher_request_free(struct ablkcipher_request *req)
{
	kzfree(req);
}

static inline void ablkcipher_request_set_callback(
	struct ablkcipher_request *req,
	u32 flags, crypto_completion_t complete, void *data)
{
	req->base.complete = complete;
	req->base.data = data;
	req->base.flags = flags;
}

static inline void ablkcipher_request_set_crypt(
	struct ablkcipher_request *req,
	struct scatterlist *src, struct scatterlist *dst,
	unsigned int nbytes, void *iv)
{
	req->src = src;
	req->dst = dst;
	req->nbytes = nbytes;
	req->info = iv;
}

static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_aead *)tfm;
}

struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);

static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_aead(struct crypto_aead *tfm)
{
	crypto_free_tfm(crypto_aead_tfm(tfm));
}

static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm)
{
	return &crypto_aead_tfm(tfm)->crt_aead;
}

static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
{
	return crypto_aead_crt(tfm)->ivsize;
}

static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
{
	return crypto_aead_crt(tfm)->authsize;
}

static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
}

static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm));
}

static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm)
{
	return crypto_tfm_get_flags(crypto_aead_tfm(tfm));
}

static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags)
{
	crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags);
}

static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
{
	crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
}

static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
				     unsigned int keylen)
{
	struct aead_tfm *crt = crypto_aead_crt(tfm);

	return crt->setkey(crt->base, key, keylen);
}

int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);

static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
{
	return __crypto_aead_cast(req->base.tfm);
}

static inline int crypto_aead_encrypt(struct aead_request *req)
{
	return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req);
}

static inline int crypto_aead_decrypt(struct aead_request *req)
{
	return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
}

static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
{
	return crypto_aead_crt(tfm)->reqsize;
}

static inline void aead_request_set_tfm(struct aead_request *req,
					struct crypto_aead *tfm)
{
	req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base);
}

static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
						      gfp_t gfp)
{
	struct aead_request *req;

	req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp);

	if (likely(req))
		aead_request_set_tfm(req, tfm);

	return req;
}

static inline void aead_request_free(struct aead_request *req)
{
	kzfree(req);
}

static inline void aead_request_set_callback(struct aead_request *req,
					     u32 flags,
					     crypto_completion_t complete,
					     void *data)
{
	req->base.complete = complete;
	req->base.data = data;
	req->base.flags = flags;
}

static inline void aead_request_set_crypt(struct aead_request *req,
					  struct scatterlist *src,
					  struct scatterlist *dst,
					  unsigned int cryptlen, u8 *iv)
{
	req->src = src;
	req->dst = dst;
	req->cryptlen = cryptlen;
	req->iv = iv;
}

static inline void aead_request_set_assoc(struct aead_request *req,
					  struct scatterlist *assoc,
					  unsigned int assoclen)
{
	req->assoc = assoc;
	req->assoclen = assoclen;
}

static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
	struct crypto_tfm *tfm)
{
	return (struct crypto_blkcipher *)tfm;
}

static inline struct crypto_blkcipher *crypto_blkcipher_cast(
	struct crypto_tfm *tfm)
{
	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
	return __crypto_blkcipher_cast(tfm);
}

static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
	const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_blkcipher_tfm(
	struct crypto_blkcipher *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
{
	crypto_free_tfm(crypto_blkcipher_tfm(tfm));
}

static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return crypto_has_alg(alg_name, type, mask);
}

static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
}

static inline struct blkcipher_tfm *crypto_blkcipher_crt(
	struct crypto_blkcipher *tfm)
{
	return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
}

static inline struct blkcipher_alg *crypto_blkcipher_alg(
	struct crypto_blkcipher *tfm)
{
	return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
}

static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
{
	return crypto_blkcipher_alg(tfm)->ivsize;
}

static inline unsigned int crypto_blkcipher_blocksize(
	struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
}

static inline unsigned int crypto_blkcipher_alignmask(
	struct crypto_blkcipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
}

static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
{
	return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
}

static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
					      u32 flags)
{
	crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
}

static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
						u32 flags)
{
	crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
}

static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
					  const u8 *key, unsigned int keylen)
{
	return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
						 key, keylen);
}

static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
					   struct scatterlist *dst,
					   struct scatterlist *src,
					   unsigned int nbytes)
{
	desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
	return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}

static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
					      struct scatterlist *dst,
					      struct scatterlist *src,
					      unsigned int nbytes)
{
	return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
}

static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
					   struct scatterlist *dst,
					   struct scatterlist *src,
					   unsigned int nbytes)
{
	desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
	return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}

static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
					      struct scatterlist *dst,
					      struct scatterlist *src,
					      unsigned int nbytes)
{
	return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
}

static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
					   const u8 *src, unsigned int len)
{
	memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
}

static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
					   u8 *dst, unsigned int len)
{
	memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
}

static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_cipher *)tfm;
}

static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
{
	BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
	return __crypto_cipher_cast(tfm);
}

static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
							u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_CIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_cipher(struct crypto_cipher *tfm)
{
	crypto_free_tfm(crypto_cipher_tfm(tfm));
}

static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_CIPHER;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return crypto_has_alg(alg_name, type, mask);
}

static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
{
	return &crypto_cipher_tfm(tfm)->crt_cipher;
}

static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
}

static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
}

static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
{
	return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
}

static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
					   u32 flags)
{
	crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
}

static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
					     u32 flags)
{
	crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
}

static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
                                       const u8 *key, unsigned int keylen)
{
	return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm),
						  key, keylen);
}

static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
					     u8 *dst, const u8 *src)
{
	crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm),
						dst, src);
}

static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
					     u8 *dst, const u8 *src)
{
	crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm),
						dst, src);
}

static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_hash *)tfm;
}

static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm)
{
	BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) &
	       CRYPTO_ALG_TYPE_HASH_MASK);
	return __crypto_hash_cast(tfm);
}

static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
						    u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	mask &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_HASH;
	mask |= CRYPTO_ALG_TYPE_HASH_MASK;

	return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_hash(struct crypto_hash *tfm)
{
	crypto_free_tfm(crypto_hash_tfm(tfm));
}

static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	mask &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_HASH;
	mask |= CRYPTO_ALG_TYPE_HASH_MASK;

	return crypto_has_alg(alg_name, type, mask);
}

static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm)
{
	return &crypto_hash_tfm(tfm)->crt_hash;
}

static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm)
{
	return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm));
}

static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm)
{
	return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm));
}

static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm)
{
	return crypto_hash_crt(tfm)->digestsize;
}

static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm)
{
	return crypto_tfm_get_flags(crypto_hash_tfm(tfm));
}

static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags)
{
	crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags);
}

static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags)
{
	crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags);
}

static inline int crypto_hash_init(struct hash_desc *desc)
{
	return crypto_hash_crt(desc->tfm)->init(desc);
}

static inline int crypto_hash_update(struct hash_desc *desc,
				     struct scatterlist *sg,
				     unsigned int nbytes)
{
	return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes);
}

static inline int crypto_hash_final(struct hash_desc *desc, u8 *out)
{
	return crypto_hash_crt(desc->tfm)->final(desc, out);
}

static inline int crypto_hash_digest(struct hash_desc *desc,
				     struct scatterlist *sg,
				     unsigned int nbytes, u8 *out)
{
	return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out);
}

static inline int crypto_hash_setkey(struct crypto_hash *hash,
				     const u8 *key, unsigned int keylen)
{
	return crypto_hash_crt(hash)->setkey(hash, key, keylen);
}

static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
{
	return (struct crypto_comp *)tfm;
}

static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm)
{
	BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) &
	       CRYPTO_ALG_TYPE_MASK);
	return __crypto_comp_cast(tfm);
}

static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
						    u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_COMPRESS;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
}

static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
{
	return &tfm->base;
}

static inline void crypto_free_comp(struct crypto_comp *tfm)
{
	crypto_free_tfm(crypto_comp_tfm(tfm));
}

static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
{
	type &= ~CRYPTO_ALG_TYPE_MASK;
	type |= CRYPTO_ALG_TYPE_COMPRESS;
	mask |= CRYPTO_ALG_TYPE_MASK;

	return crypto_has_alg(alg_name, type, mask);
}

static inline const char *crypto_comp_name(struct crypto_comp *tfm)
{
	return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
}

static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm)
{
	return &crypto_comp_tfm(tfm)->crt_compress;
}

static inline int crypto_comp_compress(struct crypto_comp *tfm,
                                       const u8 *src, unsigned int slen,
                                       u8 *dst, unsigned int *dlen)
{
	return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
						  src, slen, dst, dlen);
}

static inline int crypto_comp_decompress(struct crypto_comp *tfm,
                                         const u8 *src, unsigned int slen,
                                         u8 *dst, unsigned int *dlen)
{
	return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
						    src, slen, dst, dlen);
}

#endif	/* _LINUX_CRYPTO_H */