2 * Scatterlist Cryptographic API.
4 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5 * Copyright (c) 2002 David S. Miller (davem@redhat.com)
6 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
8 * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
9 * and Nettle, by Niels Möller.
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
17 #ifndef _LINUX_CRYPTO_H
18 #define _LINUX_CRYPTO_H
20 #include <asm/atomic.h>
21 #include <linux/module.h>
22 #include <linux/kernel.h>
23 #include <linux/list.h>
24 #include <linux/slab.h>
25 #include <linux/string.h>
26 #include <linux/uaccess.h>
29 * Algorithm masks and types.
31 #define CRYPTO_ALG_TYPE_MASK 0x0000000f
32 #define CRYPTO_ALG_TYPE_CIPHER 0x00000001
33 #define CRYPTO_ALG_TYPE_DIGEST 0x00000002
34 #define CRYPTO_ALG_TYPE_HASH 0x00000003
35 #define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004
36 #define CRYPTO_ALG_TYPE_COMPRESS 0x00000005
37 #define CRYPTO_ALG_TYPE_AEAD 0x00000006
39 #define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
41 #define CRYPTO_ALG_LARVAL 0x00000010
42 #define CRYPTO_ALG_DEAD 0x00000020
43 #define CRYPTO_ALG_DYING 0x00000040
44 #define CRYPTO_ALG_ASYNC 0x00000080
47 * Set this bit if and only if the algorithm requires another algorithm of
48 * the same type to handle corner cases.
50 #define CRYPTO_ALG_NEED_FALLBACK 0x00000100
53 * Transform masks and values (for crt_flags).
55 #define CRYPTO_TFM_REQ_MASK 0x000fff00
56 #define CRYPTO_TFM_RES_MASK 0xfff00000
58 #define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100
59 #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200
60 #define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400
61 #define CRYPTO_TFM_RES_WEAK_KEY 0x00100000
62 #define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000
63 #define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000
64 #define CRYPTO_TFM_RES_BAD_BLOCK_LEN 0x00800000
65 #define CRYPTO_TFM_RES_BAD_FLAGS 0x01000000
68 * Miscellaneous stuff.
70 #define CRYPTO_MAX_ALG_NAME 64
73 * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
74 * declaration) is used to ensure that the crypto_tfm context structure is
75 * aligned correctly for the given architecture so that there are no alignment
76 * faults for C data types. In particular, this is required on platforms such
77 * as arm where pointers are 32-bit aligned but there are data types such as
78 * u64 which require 64-bit alignment.
80 #if defined(ARCH_KMALLOC_MINALIGN)
81 #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
82 #elif defined(ARCH_SLAB_MINALIGN)
83 #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
86 #ifdef CRYPTO_MINALIGN
87 #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
89 #define CRYPTO_MINALIGN_ATTR
93 struct crypto_ablkcipher
;
94 struct crypto_async_request
;
96 struct crypto_blkcipher
;
102 typedef void (*crypto_completion_t
)(struct crypto_async_request
*req
, int err
);
104 struct crypto_async_request
{
105 struct list_head list
;
106 crypto_completion_t complete
;
108 struct crypto_tfm
*tfm
;
113 struct ablkcipher_request
{
114 struct crypto_async_request base
;
120 struct scatterlist
*src
;
121 struct scatterlist
*dst
;
123 void *__ctx
[] CRYPTO_MINALIGN_ATTR
;
127 * struct aead_request - AEAD request
128 * @base: Common attributes for async crypto requests
129 * @assoclen: Length in bytes of associated data for authentication
130 * @cryptlen: Length of data to be encrypted or decrypted
131 * @iv: Initialisation vector
132 * @assoc: Associated data
134 * @dst: Destination data
135 * @__ctx: Start of private context data
137 struct aead_request
{
138 struct crypto_async_request base
;
140 unsigned int assoclen
;
141 unsigned int cryptlen
;
145 struct scatterlist
*assoc
;
146 struct scatterlist
*src
;
147 struct scatterlist
*dst
;
149 void *__ctx
[] CRYPTO_MINALIGN_ATTR
;
152 struct blkcipher_desc
{
153 struct crypto_blkcipher
*tfm
;
159 struct crypto_tfm
*tfm
;
160 void (*crfn
)(struct crypto_tfm
*tfm
, u8
*dst
, const u8
*src
);
161 unsigned int (*prfn
)(const struct cipher_desc
*desc
, u8
*dst
,
162 const u8
*src
, unsigned int nbytes
);
167 struct crypto_hash
*tfm
;
172 * Algorithms: modular crypto algorithm implementations, managed
173 * via crypto_register_alg() and crypto_unregister_alg().
175 struct ablkcipher_alg
{
176 int (*setkey
)(struct crypto_ablkcipher
*tfm
, const u8
*key
,
177 unsigned int keylen
);
178 int (*encrypt
)(struct ablkcipher_request
*req
);
179 int (*decrypt
)(struct ablkcipher_request
*req
);
181 struct crypto_queue
*queue
;
183 unsigned int min_keysize
;
184 unsigned int max_keysize
;
189 int (*setkey
)(struct crypto_aead
*tfm
, const u8
*key
,
190 unsigned int keylen
);
191 int (*encrypt
)(struct aead_request
*req
);
192 int (*decrypt
)(struct aead_request
*req
);
195 unsigned int authsize
;
198 struct blkcipher_alg
{
199 int (*setkey
)(struct crypto_tfm
*tfm
, const u8
*key
,
200 unsigned int keylen
);
201 int (*encrypt
)(struct blkcipher_desc
*desc
,
202 struct scatterlist
*dst
, struct scatterlist
*src
,
203 unsigned int nbytes
);
204 int (*decrypt
)(struct blkcipher_desc
*desc
,
205 struct scatterlist
*dst
, struct scatterlist
*src
,
206 unsigned int nbytes
);
208 unsigned int min_keysize
;
209 unsigned int max_keysize
;
214 unsigned int cia_min_keysize
;
215 unsigned int cia_max_keysize
;
216 int (*cia_setkey
)(struct crypto_tfm
*tfm
, const u8
*key
,
217 unsigned int keylen
);
218 void (*cia_encrypt
)(struct crypto_tfm
*tfm
, u8
*dst
, const u8
*src
);
219 void (*cia_decrypt
)(struct crypto_tfm
*tfm
, u8
*dst
, const u8
*src
);
223 unsigned int dia_digestsize
;
224 void (*dia_init
)(struct crypto_tfm
*tfm
);
225 void (*dia_update
)(struct crypto_tfm
*tfm
, const u8
*data
,
227 void (*dia_final
)(struct crypto_tfm
*tfm
, u8
*out
);
228 int (*dia_setkey
)(struct crypto_tfm
*tfm
, const u8
*key
,
229 unsigned int keylen
);
233 int (*init
)(struct hash_desc
*desc
);
234 int (*update
)(struct hash_desc
*desc
, struct scatterlist
*sg
,
235 unsigned int nbytes
);
236 int (*final
)(struct hash_desc
*desc
, u8
*out
);
237 int (*digest
)(struct hash_desc
*desc
, struct scatterlist
*sg
,
238 unsigned int nbytes
, u8
*out
);
239 int (*setkey
)(struct crypto_hash
*tfm
, const u8
*key
,
240 unsigned int keylen
);
242 unsigned int digestsize
;
245 struct compress_alg
{
246 int (*coa_compress
)(struct crypto_tfm
*tfm
, const u8
*src
,
247 unsigned int slen
, u8
*dst
, unsigned int *dlen
);
248 int (*coa_decompress
)(struct crypto_tfm
*tfm
, const u8
*src
,
249 unsigned int slen
, u8
*dst
, unsigned int *dlen
);
252 #define cra_ablkcipher cra_u.ablkcipher
253 #define cra_aead cra_u.aead
254 #define cra_blkcipher cra_u.blkcipher
255 #define cra_cipher cra_u.cipher
256 #define cra_digest cra_u.digest
257 #define cra_hash cra_u.hash
258 #define cra_compress cra_u.compress
261 struct list_head cra_list
;
262 struct list_head cra_users
;
265 unsigned int cra_blocksize
;
266 unsigned int cra_ctxsize
;
267 unsigned int cra_alignmask
;
272 char cra_name
[CRYPTO_MAX_ALG_NAME
];
273 char cra_driver_name
[CRYPTO_MAX_ALG_NAME
];
275 const struct crypto_type
*cra_type
;
278 struct ablkcipher_alg ablkcipher
;
279 struct aead_alg aead
;
280 struct blkcipher_alg blkcipher
;
281 struct cipher_alg cipher
;
282 struct digest_alg digest
;
283 struct hash_alg hash
;
284 struct compress_alg compress
;
287 int (*cra_init
)(struct crypto_tfm
*tfm
);
288 void (*cra_exit
)(struct crypto_tfm
*tfm
);
289 void (*cra_destroy
)(struct crypto_alg
*alg
);
291 struct module
*cra_module
;
295 * Algorithm registration interface.
297 int crypto_register_alg(struct crypto_alg
*alg
);
298 int crypto_unregister_alg(struct crypto_alg
*alg
);
301 * Algorithm query interface.
304 int crypto_has_alg(const char *name
, u32 type
, u32 mask
);
306 static inline int crypto_has_alg(const char *name
, u32 type
, u32 mask
)
313 * Transforms: user-instantiated objects which encapsulate algorithms
314 * and core processing logic. Managed via crypto_alloc_*() and
315 * crypto_free_*(), as well as the various helpers below.
318 struct ablkcipher_tfm
{
319 int (*setkey
)(struct crypto_ablkcipher
*tfm
, const u8
*key
,
320 unsigned int keylen
);
321 int (*encrypt
)(struct ablkcipher_request
*req
);
322 int (*decrypt
)(struct ablkcipher_request
*req
);
324 unsigned int reqsize
;
328 int (*setkey
)(struct crypto_aead
*tfm
, const u8
*key
,
329 unsigned int keylen
);
330 int (*encrypt
)(struct aead_request
*req
);
331 int (*decrypt
)(struct aead_request
*req
);
333 unsigned int authsize
;
334 unsigned int reqsize
;
337 struct blkcipher_tfm
{
339 int (*setkey
)(struct crypto_tfm
*tfm
, const u8
*key
,
340 unsigned int keylen
);
341 int (*encrypt
)(struct blkcipher_desc
*desc
, struct scatterlist
*dst
,
342 struct scatterlist
*src
, unsigned int nbytes
);
343 int (*decrypt
)(struct blkcipher_desc
*desc
, struct scatterlist
*dst
,
344 struct scatterlist
*src
, unsigned int nbytes
);
348 int (*cit_setkey
)(struct crypto_tfm
*tfm
,
349 const u8
*key
, unsigned int keylen
);
350 void (*cit_encrypt_one
)(struct crypto_tfm
*tfm
, u8
*dst
, const u8
*src
);
351 void (*cit_decrypt_one
)(struct crypto_tfm
*tfm
, u8
*dst
, const u8
*src
);
355 int (*init
)(struct hash_desc
*desc
);
356 int (*update
)(struct hash_desc
*desc
,
357 struct scatterlist
*sg
, unsigned int nsg
);
358 int (*final
)(struct hash_desc
*desc
, u8
*out
);
359 int (*digest
)(struct hash_desc
*desc
, struct scatterlist
*sg
,
360 unsigned int nsg
, u8
*out
);
361 int (*setkey
)(struct crypto_hash
*tfm
, const u8
*key
,
362 unsigned int keylen
);
363 unsigned int digestsize
;
366 struct compress_tfm
{
367 int (*cot_compress
)(struct crypto_tfm
*tfm
,
368 const u8
*src
, unsigned int slen
,
369 u8
*dst
, unsigned int *dlen
);
370 int (*cot_decompress
)(struct crypto_tfm
*tfm
,
371 const u8
*src
, unsigned int slen
,
372 u8
*dst
, unsigned int *dlen
);
375 #define crt_ablkcipher crt_u.ablkcipher
376 #define crt_aead crt_u.aead
377 #define crt_blkcipher crt_u.blkcipher
378 #define crt_cipher crt_u.cipher
379 #define crt_hash crt_u.hash
380 #define crt_compress crt_u.compress
387 struct ablkcipher_tfm ablkcipher
;
388 struct aead_tfm aead
;
389 struct blkcipher_tfm blkcipher
;
390 struct cipher_tfm cipher
;
391 struct hash_tfm hash
;
392 struct compress_tfm compress
;
395 struct crypto_alg
*__crt_alg
;
397 void *__crt_ctx
[] CRYPTO_MINALIGN_ATTR
;
400 struct crypto_ablkcipher
{
401 struct crypto_tfm base
;
405 struct crypto_tfm base
;
408 struct crypto_blkcipher
{
409 struct crypto_tfm base
;
412 struct crypto_cipher
{
413 struct crypto_tfm base
;
417 struct crypto_tfm base
;
421 struct crypto_tfm base
;
431 #define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
433 struct crypto_attr_alg
{
434 char name
[CRYPTO_MAX_ALG_NAME
];
437 struct crypto_attr_type
{
443 * Transform user interface.
446 struct crypto_tfm
*crypto_alloc_tfm(const char *alg_name
, u32 tfm_flags
);
447 struct crypto_tfm
*crypto_alloc_base(const char *alg_name
, u32 type
, u32 mask
);
448 void crypto_free_tfm(struct crypto_tfm
*tfm
);
451 * Transform helpers which query the underlying algorithm.
453 static inline const char *crypto_tfm_alg_name(struct crypto_tfm
*tfm
)
455 return tfm
->__crt_alg
->cra_name
;
458 static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm
*tfm
)
460 return tfm
->__crt_alg
->cra_driver_name
;
463 static inline int crypto_tfm_alg_priority(struct crypto_tfm
*tfm
)
465 return tfm
->__crt_alg
->cra_priority
;
468 static inline const char *crypto_tfm_alg_modname(struct crypto_tfm
*tfm
)
470 return module_name(tfm
->__crt_alg
->cra_module
);
473 static inline u32
crypto_tfm_alg_type(struct crypto_tfm
*tfm
)
475 return tfm
->__crt_alg
->cra_flags
& CRYPTO_ALG_TYPE_MASK
;
478 static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm
*tfm
)
480 return tfm
->__crt_alg
->cra_blocksize
;
483 static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm
*tfm
)
485 return tfm
->__crt_alg
->cra_alignmask
;
488 static inline u32
crypto_tfm_get_flags(struct crypto_tfm
*tfm
)
490 return tfm
->crt_flags
;
493 static inline void crypto_tfm_set_flags(struct crypto_tfm
*tfm
, u32 flags
)
495 tfm
->crt_flags
|= flags
;
498 static inline void crypto_tfm_clear_flags(struct crypto_tfm
*tfm
, u32 flags
)
500 tfm
->crt_flags
&= ~flags
;
503 static inline void *crypto_tfm_ctx(struct crypto_tfm
*tfm
)
505 return tfm
->__crt_ctx
;
508 static inline unsigned int crypto_tfm_ctx_alignment(void)
510 struct crypto_tfm
*tfm
;
511 return __alignof__(tfm
->__crt_ctx
);
517 static inline struct crypto_ablkcipher
*__crypto_ablkcipher_cast(
518 struct crypto_tfm
*tfm
)
520 return (struct crypto_ablkcipher
*)tfm
;
523 static inline struct crypto_ablkcipher
*crypto_alloc_ablkcipher(
524 const char *alg_name
, u32 type
, u32 mask
)
526 type
&= ~CRYPTO_ALG_TYPE_MASK
;
527 type
|= CRYPTO_ALG_TYPE_BLKCIPHER
;
528 mask
|= CRYPTO_ALG_TYPE_MASK
;
530 return __crypto_ablkcipher_cast(
531 crypto_alloc_base(alg_name
, type
, mask
));
534 static inline struct crypto_tfm
*crypto_ablkcipher_tfm(
535 struct crypto_ablkcipher
*tfm
)
540 static inline void crypto_free_ablkcipher(struct crypto_ablkcipher
*tfm
)
542 crypto_free_tfm(crypto_ablkcipher_tfm(tfm
));
545 static inline int crypto_has_ablkcipher(const char *alg_name
, u32 type
,
548 type
&= ~CRYPTO_ALG_TYPE_MASK
;
549 type
|= CRYPTO_ALG_TYPE_BLKCIPHER
;
550 mask
|= CRYPTO_ALG_TYPE_MASK
;
552 return crypto_has_alg(alg_name
, type
, mask
);
555 static inline struct ablkcipher_tfm
*crypto_ablkcipher_crt(
556 struct crypto_ablkcipher
*tfm
)
558 return &crypto_ablkcipher_tfm(tfm
)->crt_ablkcipher
;
561 static inline unsigned int crypto_ablkcipher_ivsize(
562 struct crypto_ablkcipher
*tfm
)
564 return crypto_ablkcipher_crt(tfm
)->ivsize
;
567 static inline unsigned int crypto_ablkcipher_blocksize(
568 struct crypto_ablkcipher
*tfm
)
570 return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm
));
573 static inline unsigned int crypto_ablkcipher_alignmask(
574 struct crypto_ablkcipher
*tfm
)
576 return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm
));
579 static inline u32
crypto_ablkcipher_get_flags(struct crypto_ablkcipher
*tfm
)
581 return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm
));
584 static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher
*tfm
,
587 crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm
), flags
);
590 static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher
*tfm
,
593 crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm
), flags
);
596 static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher
*tfm
,
597 const u8
*key
, unsigned int keylen
)
599 return crypto_ablkcipher_crt(tfm
)->setkey(tfm
, key
, keylen
);
602 static inline struct crypto_ablkcipher
*crypto_ablkcipher_reqtfm(
603 struct ablkcipher_request
*req
)
605 return __crypto_ablkcipher_cast(req
->base
.tfm
);
608 static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request
*req
)
610 struct ablkcipher_tfm
*crt
=
611 crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req
));
612 return crt
->encrypt(req
);
615 static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request
*req
)
617 struct ablkcipher_tfm
*crt
=
618 crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req
));
619 return crt
->decrypt(req
);
622 static inline int crypto_ablkcipher_reqsize(struct crypto_ablkcipher
*tfm
)
624 return crypto_ablkcipher_crt(tfm
)->reqsize
;
627 static inline void ablkcipher_request_set_tfm(
628 struct ablkcipher_request
*req
, struct crypto_ablkcipher
*tfm
)
630 req
->base
.tfm
= crypto_ablkcipher_tfm(tfm
);
633 static inline struct ablkcipher_request
*ablkcipher_request_cast(
634 struct crypto_async_request
*req
)
636 return container_of(req
, struct ablkcipher_request
, base
);
639 static inline struct ablkcipher_request
*ablkcipher_request_alloc(
640 struct crypto_ablkcipher
*tfm
, gfp_t gfp
)
642 struct ablkcipher_request
*req
;
644 req
= kmalloc(sizeof(struct ablkcipher_request
) +
645 crypto_ablkcipher_reqsize(tfm
), gfp
);
648 ablkcipher_request_set_tfm(req
, tfm
);
653 static inline void ablkcipher_request_free(struct ablkcipher_request
*req
)
658 static inline void ablkcipher_request_set_callback(
659 struct ablkcipher_request
*req
,
660 u32 flags
, crypto_completion_t complete
, void *data
)
662 req
->base
.complete
= complete
;
663 req
->base
.data
= data
;
664 req
->base
.flags
= flags
;
667 static inline void ablkcipher_request_set_crypt(
668 struct ablkcipher_request
*req
,
669 struct scatterlist
*src
, struct scatterlist
*dst
,
670 unsigned int nbytes
, void *iv
)
674 req
->nbytes
= nbytes
;
678 static inline struct crypto_aead
*__crypto_aead_cast(struct crypto_tfm
*tfm
)
680 return (struct crypto_aead
*)tfm
;
683 static inline struct crypto_aead
*crypto_alloc_aead(const char *alg_name
,
686 type
&= ~CRYPTO_ALG_TYPE_MASK
;
687 type
|= CRYPTO_ALG_TYPE_AEAD
;
688 mask
|= CRYPTO_ALG_TYPE_MASK
;
690 return __crypto_aead_cast(crypto_alloc_base(alg_name
, type
, mask
));
693 static inline struct crypto_tfm
*crypto_aead_tfm(struct crypto_aead
*tfm
)
698 static inline void crypto_free_aead(struct crypto_aead
*tfm
)
700 crypto_free_tfm(crypto_aead_tfm(tfm
));
703 static inline struct aead_tfm
*crypto_aead_crt(struct crypto_aead
*tfm
)
705 return &crypto_aead_tfm(tfm
)->crt_aead
;
708 static inline unsigned int crypto_aead_ivsize(struct crypto_aead
*tfm
)
710 return crypto_aead_crt(tfm
)->ivsize
;
713 static inline unsigned int crypto_aead_authsize(struct crypto_aead
*tfm
)
715 return crypto_aead_crt(tfm
)->authsize
;
718 static inline unsigned int crypto_aead_blocksize(struct crypto_aead
*tfm
)
720 return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm
));
723 static inline unsigned int crypto_aead_alignmask(struct crypto_aead
*tfm
)
725 return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm
));
728 static inline u32
crypto_aead_get_flags(struct crypto_aead
*tfm
)
730 return crypto_tfm_get_flags(crypto_aead_tfm(tfm
));
733 static inline void crypto_aead_set_flags(struct crypto_aead
*tfm
, u32 flags
)
735 crypto_tfm_set_flags(crypto_aead_tfm(tfm
), flags
);
738 static inline void crypto_aead_clear_flags(struct crypto_aead
*tfm
, u32 flags
)
740 crypto_tfm_clear_flags(crypto_aead_tfm(tfm
), flags
);
743 static inline int crypto_aead_setkey(struct crypto_aead
*tfm
, const u8
*key
,
746 return crypto_aead_crt(tfm
)->setkey(tfm
, key
, keylen
);
749 static inline struct crypto_aead
*crypto_aead_reqtfm(struct aead_request
*req
)
751 return __crypto_aead_cast(req
->base
.tfm
);
754 static inline int crypto_aead_encrypt(struct aead_request
*req
)
756 return crypto_aead_crt(crypto_aead_reqtfm(req
))->encrypt(req
);
759 static inline int crypto_aead_decrypt(struct aead_request
*req
)
761 return crypto_aead_crt(crypto_aead_reqtfm(req
))->decrypt(req
);
764 static inline int crypto_aead_reqsize(struct crypto_aead
*tfm
)
766 return crypto_aead_crt(tfm
)->reqsize
;
769 static inline void aead_request_set_tfm(struct aead_request
*req
,
770 struct crypto_aead
*tfm
)
772 req
->base
.tfm
= crypto_aead_tfm(tfm
);
775 static inline struct aead_request
*aead_request_alloc(struct crypto_aead
*tfm
,
778 struct aead_request
*req
;
780 req
= kmalloc(sizeof(*req
) + crypto_aead_reqsize(tfm
), gfp
);
783 aead_request_set_tfm(req
, tfm
);
788 static inline void aead_request_free(struct aead_request
*req
)
793 static inline void aead_request_set_callback(struct aead_request
*req
,
795 crypto_completion_t complete
,
798 req
->base
.complete
= complete
;
799 req
->base
.data
= data
;
800 req
->base
.flags
= flags
;
803 static inline void aead_request_set_crypt(struct aead_request
*req
,
804 struct scatterlist
*src
,
805 struct scatterlist
*dst
,
806 unsigned int cryptlen
, u8
*iv
)
810 req
->cryptlen
= cryptlen
;
814 static inline void aead_request_set_assoc(struct aead_request
*req
,
815 struct scatterlist
*assoc
,
816 unsigned int assoclen
)
819 req
->assoclen
= assoclen
;
822 static inline struct crypto_blkcipher
*__crypto_blkcipher_cast(
823 struct crypto_tfm
*tfm
)
825 return (struct crypto_blkcipher
*)tfm
;
828 static inline struct crypto_blkcipher
*crypto_blkcipher_cast(
829 struct crypto_tfm
*tfm
)
831 BUG_ON(crypto_tfm_alg_type(tfm
) != CRYPTO_ALG_TYPE_BLKCIPHER
);
832 return __crypto_blkcipher_cast(tfm
);
835 static inline struct crypto_blkcipher
*crypto_alloc_blkcipher(
836 const char *alg_name
, u32 type
, u32 mask
)
838 type
&= ~(CRYPTO_ALG_TYPE_MASK
| CRYPTO_ALG_ASYNC
);
839 type
|= CRYPTO_ALG_TYPE_BLKCIPHER
;
840 mask
|= CRYPTO_ALG_TYPE_MASK
| CRYPTO_ALG_ASYNC
;
842 return __crypto_blkcipher_cast(crypto_alloc_base(alg_name
, type
, mask
));
845 static inline struct crypto_tfm
*crypto_blkcipher_tfm(
846 struct crypto_blkcipher
*tfm
)
851 static inline void crypto_free_blkcipher(struct crypto_blkcipher
*tfm
)
853 crypto_free_tfm(crypto_blkcipher_tfm(tfm
));
856 static inline int crypto_has_blkcipher(const char *alg_name
, u32 type
, u32 mask
)
858 type
&= ~(CRYPTO_ALG_TYPE_MASK
| CRYPTO_ALG_ASYNC
);
859 type
|= CRYPTO_ALG_TYPE_BLKCIPHER
;
860 mask
|= CRYPTO_ALG_TYPE_MASK
| CRYPTO_ALG_ASYNC
;
862 return crypto_has_alg(alg_name
, type
, mask
);
865 static inline const char *crypto_blkcipher_name(struct crypto_blkcipher
*tfm
)
867 return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm
));
870 static inline struct blkcipher_tfm
*crypto_blkcipher_crt(
871 struct crypto_blkcipher
*tfm
)
873 return &crypto_blkcipher_tfm(tfm
)->crt_blkcipher
;
876 static inline struct blkcipher_alg
*crypto_blkcipher_alg(
877 struct crypto_blkcipher
*tfm
)
879 return &crypto_blkcipher_tfm(tfm
)->__crt_alg
->cra_blkcipher
;
882 static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher
*tfm
)
884 return crypto_blkcipher_alg(tfm
)->ivsize
;
887 static inline unsigned int crypto_blkcipher_blocksize(
888 struct crypto_blkcipher
*tfm
)
890 return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm
));
893 static inline unsigned int crypto_blkcipher_alignmask(
894 struct crypto_blkcipher
*tfm
)
896 return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm
));
899 static inline u32
crypto_blkcipher_get_flags(struct crypto_blkcipher
*tfm
)
901 return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm
));
904 static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher
*tfm
,
907 crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm
), flags
);
910 static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher
*tfm
,
913 crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm
), flags
);
916 static inline int crypto_blkcipher_setkey(struct crypto_blkcipher
*tfm
,
917 const u8
*key
, unsigned int keylen
)
919 return crypto_blkcipher_crt(tfm
)->setkey(crypto_blkcipher_tfm(tfm
),
923 static inline int crypto_blkcipher_encrypt(struct blkcipher_desc
*desc
,
924 struct scatterlist
*dst
,
925 struct scatterlist
*src
,
928 desc
->info
= crypto_blkcipher_crt(desc
->tfm
)->iv
;
929 return crypto_blkcipher_crt(desc
->tfm
)->encrypt(desc
, dst
, src
, nbytes
);
932 static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc
*desc
,
933 struct scatterlist
*dst
,
934 struct scatterlist
*src
,
937 return crypto_blkcipher_crt(desc
->tfm
)->encrypt(desc
, dst
, src
, nbytes
);
940 static inline int crypto_blkcipher_decrypt(struct blkcipher_desc
*desc
,
941 struct scatterlist
*dst
,
942 struct scatterlist
*src
,
945 desc
->info
= crypto_blkcipher_crt(desc
->tfm
)->iv
;
946 return crypto_blkcipher_crt(desc
->tfm
)->decrypt(desc
, dst
, src
, nbytes
);
949 static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc
*desc
,
950 struct scatterlist
*dst
,
951 struct scatterlist
*src
,
954 return crypto_blkcipher_crt(desc
->tfm
)->decrypt(desc
, dst
, src
, nbytes
);
957 static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher
*tfm
,
958 const u8
*src
, unsigned int len
)
960 memcpy(crypto_blkcipher_crt(tfm
)->iv
, src
, len
);
963 static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher
*tfm
,
964 u8
*dst
, unsigned int len
)
966 memcpy(dst
, crypto_blkcipher_crt(tfm
)->iv
, len
);
969 static inline struct crypto_cipher
*__crypto_cipher_cast(struct crypto_tfm
*tfm
)
971 return (struct crypto_cipher
*)tfm
;
974 static inline struct crypto_cipher
*crypto_cipher_cast(struct crypto_tfm
*tfm
)
976 BUG_ON(crypto_tfm_alg_type(tfm
) != CRYPTO_ALG_TYPE_CIPHER
);
977 return __crypto_cipher_cast(tfm
);
980 static inline struct crypto_cipher
*crypto_alloc_cipher(const char *alg_name
,
983 type
&= ~CRYPTO_ALG_TYPE_MASK
;
984 type
|= CRYPTO_ALG_TYPE_CIPHER
;
985 mask
|= CRYPTO_ALG_TYPE_MASK
;
987 return __crypto_cipher_cast(crypto_alloc_base(alg_name
, type
, mask
));
990 static inline struct crypto_tfm
*crypto_cipher_tfm(struct crypto_cipher
*tfm
)
995 static inline void crypto_free_cipher(struct crypto_cipher
*tfm
)
997 crypto_free_tfm(crypto_cipher_tfm(tfm
));
1000 static inline int crypto_has_cipher(const char *alg_name
, u32 type
, u32 mask
)
1002 type
&= ~CRYPTO_ALG_TYPE_MASK
;
1003 type
|= CRYPTO_ALG_TYPE_CIPHER
;
1004 mask
|= CRYPTO_ALG_TYPE_MASK
;
1006 return crypto_has_alg(alg_name
, type
, mask
);
1009 static inline struct cipher_tfm
*crypto_cipher_crt(struct crypto_cipher
*tfm
)
1011 return &crypto_cipher_tfm(tfm
)->crt_cipher
;
1014 static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher
*tfm
)
1016 return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm
));
1019 static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher
*tfm
)
1021 return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm
));
1024 static inline u32
crypto_cipher_get_flags(struct crypto_cipher
*tfm
)
1026 return crypto_tfm_get_flags(crypto_cipher_tfm(tfm
));
1029 static inline void crypto_cipher_set_flags(struct crypto_cipher
*tfm
,
1032 crypto_tfm_set_flags(crypto_cipher_tfm(tfm
), flags
);
1035 static inline void crypto_cipher_clear_flags(struct crypto_cipher
*tfm
,
1038 crypto_tfm_clear_flags(crypto_cipher_tfm(tfm
), flags
);
1041 static inline int crypto_cipher_setkey(struct crypto_cipher
*tfm
,
1042 const u8
*key
, unsigned int keylen
)
1044 return crypto_cipher_crt(tfm
)->cit_setkey(crypto_cipher_tfm(tfm
),
1048 static inline void crypto_cipher_encrypt_one(struct crypto_cipher
*tfm
,
1049 u8
*dst
, const u8
*src
)
1051 crypto_cipher_crt(tfm
)->cit_encrypt_one(crypto_cipher_tfm(tfm
),
1055 static inline void crypto_cipher_decrypt_one(struct crypto_cipher
*tfm
,
1056 u8
*dst
, const u8
*src
)
1058 crypto_cipher_crt(tfm
)->cit_decrypt_one(crypto_cipher_tfm(tfm
),
1062 static inline struct crypto_hash
*__crypto_hash_cast(struct crypto_tfm
*tfm
)
1064 return (struct crypto_hash
*)tfm
;
1067 static inline struct crypto_hash
*crypto_hash_cast(struct crypto_tfm
*tfm
)
1069 BUG_ON((crypto_tfm_alg_type(tfm
) ^ CRYPTO_ALG_TYPE_HASH
) &
1070 CRYPTO_ALG_TYPE_HASH_MASK
);
1071 return __crypto_hash_cast(tfm
);
1074 static inline struct crypto_hash
*crypto_alloc_hash(const char *alg_name
,
1077 type
&= ~CRYPTO_ALG_TYPE_MASK
;
1078 type
|= CRYPTO_ALG_TYPE_HASH
;
1079 mask
|= CRYPTO_ALG_TYPE_HASH_MASK
;
1081 return __crypto_hash_cast(crypto_alloc_base(alg_name
, type
, mask
));
1084 static inline struct crypto_tfm
*crypto_hash_tfm(struct crypto_hash
*tfm
)
1089 static inline void crypto_free_hash(struct crypto_hash
*tfm
)
1091 crypto_free_tfm(crypto_hash_tfm(tfm
));
1094 static inline int crypto_has_hash(const char *alg_name
, u32 type
, u32 mask
)
1096 type
&= ~CRYPTO_ALG_TYPE_MASK
;
1097 type
|= CRYPTO_ALG_TYPE_HASH
;
1098 mask
|= CRYPTO_ALG_TYPE_HASH_MASK
;
1100 return crypto_has_alg(alg_name
, type
, mask
);
1103 static inline struct hash_tfm
*crypto_hash_crt(struct crypto_hash
*tfm
)
1105 return &crypto_hash_tfm(tfm
)->crt_hash
;
1108 static inline unsigned int crypto_hash_blocksize(struct crypto_hash
*tfm
)
1110 return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm
));
1113 static inline unsigned int crypto_hash_alignmask(struct crypto_hash
*tfm
)
1115 return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm
));
1118 static inline unsigned int crypto_hash_digestsize(struct crypto_hash
*tfm
)
1120 return crypto_hash_crt(tfm
)->digestsize
;
1123 static inline u32
crypto_hash_get_flags(struct crypto_hash
*tfm
)
1125 return crypto_tfm_get_flags(crypto_hash_tfm(tfm
));
1128 static inline void crypto_hash_set_flags(struct crypto_hash
*tfm
, u32 flags
)
1130 crypto_tfm_set_flags(crypto_hash_tfm(tfm
), flags
);
1133 static inline void crypto_hash_clear_flags(struct crypto_hash
*tfm
, u32 flags
)
1135 crypto_tfm_clear_flags(crypto_hash_tfm(tfm
), flags
);
1138 static inline int crypto_hash_init(struct hash_desc
*desc
)
1140 return crypto_hash_crt(desc
->tfm
)->init(desc
);
1143 static inline int crypto_hash_update(struct hash_desc
*desc
,
1144 struct scatterlist
*sg
,
1145 unsigned int nbytes
)
1147 return crypto_hash_crt(desc
->tfm
)->update(desc
, sg
, nbytes
);
1150 static inline int crypto_hash_final(struct hash_desc
*desc
, u8
*out
)
1152 return crypto_hash_crt(desc
->tfm
)->final(desc
, out
);
1155 static inline int crypto_hash_digest(struct hash_desc
*desc
,
1156 struct scatterlist
*sg
,
1157 unsigned int nbytes
, u8
*out
)
1159 return crypto_hash_crt(desc
->tfm
)->digest(desc
, sg
, nbytes
, out
);
1162 static inline int crypto_hash_setkey(struct crypto_hash
*hash
,
1163 const u8
*key
, unsigned int keylen
)
1165 return crypto_hash_crt(hash
)->setkey(hash
, key
, keylen
);
1168 static inline struct crypto_comp
*__crypto_comp_cast(struct crypto_tfm
*tfm
)
1170 return (struct crypto_comp
*)tfm
;
1173 static inline struct crypto_comp
*crypto_comp_cast(struct crypto_tfm
*tfm
)
1175 BUG_ON((crypto_tfm_alg_type(tfm
) ^ CRYPTO_ALG_TYPE_COMPRESS
) &
1176 CRYPTO_ALG_TYPE_MASK
);
1177 return __crypto_comp_cast(tfm
);
1180 static inline struct crypto_comp
*crypto_alloc_comp(const char *alg_name
,
1183 type
&= ~CRYPTO_ALG_TYPE_MASK
;
1184 type
|= CRYPTO_ALG_TYPE_COMPRESS
;
1185 mask
|= CRYPTO_ALG_TYPE_MASK
;
1187 return __crypto_comp_cast(crypto_alloc_base(alg_name
, type
, mask
));
1190 static inline struct crypto_tfm
*crypto_comp_tfm(struct crypto_comp
*tfm
)
1195 static inline void crypto_free_comp(struct crypto_comp
*tfm
)
1197 crypto_free_tfm(crypto_comp_tfm(tfm
));
1200 static inline int crypto_has_comp(const char *alg_name
, u32 type
, u32 mask
)
1202 type
&= ~CRYPTO_ALG_TYPE_MASK
;
1203 type
|= CRYPTO_ALG_TYPE_COMPRESS
;
1204 mask
|= CRYPTO_ALG_TYPE_MASK
;
1206 return crypto_has_alg(alg_name
, type
, mask
);
1209 static inline const char *crypto_comp_name(struct crypto_comp
*tfm
)
1211 return crypto_tfm_alg_name(crypto_comp_tfm(tfm
));
1214 static inline struct compress_tfm
*crypto_comp_crt(struct crypto_comp
*tfm
)
1216 return &crypto_comp_tfm(tfm
)->crt_compress
;
1219 static inline int crypto_comp_compress(struct crypto_comp
*tfm
,
1220 const u8
*src
, unsigned int slen
,
1221 u8
*dst
, unsigned int *dlen
)
1223 return crypto_comp_crt(tfm
)->cot_compress(crypto_comp_tfm(tfm
),
1224 src
, slen
, dst
, dlen
);
1227 static inline int crypto_comp_decompress(struct crypto_comp
*tfm
,
1228 const u8
*src
, unsigned int slen
,
1229 u8
*dst
, unsigned int *dlen
)
1231 return crypto_comp_crt(tfm
)->cot_decompress(crypto_comp_tfm(tfm
),
1232 src
, slen
, dst
, dlen
);
1235 #endif /* _LINUX_CRYPTO_H */