linux/include/linux/crypto.h
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   1/*
   2 * Scatterlist Cryptographic API.
   3 *
   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>
   7 *
   8 * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
   9 * and Nettle, by Niels Möller.
  10 * 
  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) 
  14 * any later version.
  15 *
  16 */
  17#ifndef _LINUX_CRYPTO_H
  18#define _LINUX_CRYPTO_H
  19
  20#include <linux/atomic.h>
  21#include <linux/kernel.h>
  22#include <linux/list.h>
  23#include <linux/bug.h>
  24#include <linux/slab.h>
  25#include <linux/string.h>
  26#include <linux/uaccess.h>
  27
  28/*
  29 * Algorithm masks and types.
  30 */
  31#define CRYPTO_ALG_TYPE_MASK            0x0000000f
  32#define CRYPTO_ALG_TYPE_CIPHER          0x00000001
  33#define CRYPTO_ALG_TYPE_COMPRESS        0x00000002
  34#define CRYPTO_ALG_TYPE_AEAD            0x00000003
  35#define CRYPTO_ALG_TYPE_BLKCIPHER       0x00000004
  36#define CRYPTO_ALG_TYPE_ABLKCIPHER      0x00000005
  37#define CRYPTO_ALG_TYPE_GIVCIPHER       0x00000006
  38#define CRYPTO_ALG_TYPE_DIGEST          0x00000008
  39#define CRYPTO_ALG_TYPE_HASH            0x00000008
  40#define CRYPTO_ALG_TYPE_SHASH           0x00000009
  41#define CRYPTO_ALG_TYPE_AHASH           0x0000000a
  42#define CRYPTO_ALG_TYPE_RNG             0x0000000c
  43#define CRYPTO_ALG_TYPE_PCOMPRESS       0x0000000f
  44
  45#define CRYPTO_ALG_TYPE_HASH_MASK       0x0000000e
  46#define CRYPTO_ALG_TYPE_AHASH_MASK      0x0000000c
  47#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK  0x0000000c
  48
  49#define CRYPTO_ALG_LARVAL               0x00000010
  50#define CRYPTO_ALG_DEAD                 0x00000020
  51#define CRYPTO_ALG_DYING                0x00000040
  52#define CRYPTO_ALG_ASYNC                0x00000080
  53
  54/*
  55 * Set this bit if and only if the algorithm requires another algorithm of
  56 * the same type to handle corner cases.
  57 */
  58#define CRYPTO_ALG_NEED_FALLBACK        0x00000100
  59
  60/*
  61 * This bit is set for symmetric key ciphers that have already been wrapped
  62 * with a generic IV generator to prevent them from being wrapped again.
  63 */
  64#define CRYPTO_ALG_GENIV                0x00000200
  65
  66/*
  67 * Set if the algorithm has passed automated run-time testing.  Note that
  68 * if there is no run-time testing for a given algorithm it is considered
  69 * to have passed.
  70 */
  71
  72#define CRYPTO_ALG_TESTED               0x00000400
  73
  74/*
  75 * Set if the algorithm is an instance that is build from templates.
  76 */
  77#define CRYPTO_ALG_INSTANCE             0x00000800
  78
  79/* Set this bit if the algorithm provided is hardware accelerated but
  80 * not available to userspace via instruction set or so.
  81 */
  82#define CRYPTO_ALG_KERN_DRIVER_ONLY     0x00001000
  83
  84/*
  85 * Transform masks and values (for crt_flags).
  86 */
  87#define CRYPTO_TFM_REQ_MASK             0x000fff00
  88#define CRYPTO_TFM_RES_MASK             0xfff00000
  89
  90#define CRYPTO_TFM_REQ_WEAK_KEY         0x00000100
  91#define CRYPTO_TFM_REQ_MAY_SLEEP        0x00000200
  92#define CRYPTO_TFM_REQ_MAY_BACKLOG      0x00000400
  93#define CRYPTO_TFM_RES_WEAK_KEY         0x00100000
  94#define CRYPTO_TFM_RES_BAD_KEY_LEN      0x00200000
  95#define CRYPTO_TFM_RES_BAD_KEY_SCHED    0x00400000
  96#define CRYPTO_TFM_RES_BAD_BLOCK_LEN    0x00800000
  97#define CRYPTO_TFM_RES_BAD_FLAGS        0x01000000
  98
  99/*
 100 * Miscellaneous stuff.
 101 */
 102#define CRYPTO_MAX_ALG_NAME             64
 103
 104/*
 105 * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
 106 * declaration) is used to ensure that the crypto_tfm context structure is
 107 * aligned correctly for the given architecture so that there are no alignment
 108 * faults for C data types.  In particular, this is required on platforms such
 109 * as arm where pointers are 32-bit aligned but there are data types such as
 110 * u64 which require 64-bit alignment.
 111 */
 112#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
 113
 114#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
 115
 116struct scatterlist;
 117struct crypto_ablkcipher;
 118struct crypto_async_request;
 119struct crypto_aead;
 120struct crypto_blkcipher;
 121struct crypto_hash;
 122struct crypto_rng;
 123struct crypto_tfm;
 124struct crypto_type;
 125struct aead_givcrypt_request;
 126struct skcipher_givcrypt_request;
 127
 128typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
 129
 130struct crypto_async_request {
 131        struct list_head list;
 132        crypto_completion_t complete;
 133        void *data;
 134        struct crypto_tfm *tfm;
 135
 136        u32 flags;
 137};
 138
 139struct ablkcipher_request {
 140        struct crypto_async_request base;
 141
 142        unsigned int nbytes;
 143
 144        void *info;
 145
 146        struct scatterlist *src;
 147        struct scatterlist *dst;
 148
 149        void *__ctx[] CRYPTO_MINALIGN_ATTR;
 150};
 151
 152/**
 153 *      struct aead_request - AEAD request
 154 *      @base: Common attributes for async crypto requests
 155 *      @assoclen: Length in bytes of associated data for authentication
 156 *      @cryptlen: Length of data to be encrypted or decrypted
 157 *      @iv: Initialisation vector
 158 *      @assoc: Associated data
 159 *      @src: Source data
 160 *      @dst: Destination data
 161 *      @__ctx: Start of private context data
 162 */
 163struct aead_request {
 164        struct crypto_async_request base;
 165
 166        unsigned int assoclen;
 167        unsigned int cryptlen;
 168
 169        u8 *iv;
 170
 171        struct scatterlist *assoc;
 172        struct scatterlist *src;
 173        struct scatterlist *dst;
 174
 175        void *__ctx[] CRYPTO_MINALIGN_ATTR;
 176};
 177
 178struct blkcipher_desc {
 179        struct crypto_blkcipher *tfm;
 180        void *info;
 181        u32 flags;
 182};
 183
 184struct cipher_desc {
 185        struct crypto_tfm *tfm;
 186        void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 187        unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
 188                             const u8 *src, unsigned int nbytes);
 189        void *info;
 190};
 191
 192struct hash_desc {
 193        struct crypto_hash *tfm;
 194        u32 flags;
 195};
 196
 197/*
 198 * Algorithms: modular crypto algorithm implementations, managed
 199 * via crypto_register_alg() and crypto_unregister_alg().
 200 */
 201struct ablkcipher_alg {
 202        int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
 203                      unsigned int keylen);
 204        int (*encrypt)(struct ablkcipher_request *req);
 205        int (*decrypt)(struct ablkcipher_request *req);
 206        int (*givencrypt)(struct skcipher_givcrypt_request *req);
 207        int (*givdecrypt)(struct skcipher_givcrypt_request *req);
 208
 209        const char *geniv;
 210
 211        unsigned int min_keysize;
 212        unsigned int max_keysize;
 213        unsigned int ivsize;
 214};
 215
 216struct aead_alg {
 217        int (*setkey)(struct crypto_aead *tfm, const u8 *key,
 218                      unsigned int keylen);
 219        int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
 220        int (*encrypt)(struct aead_request *req);
 221        int (*decrypt)(struct aead_request *req);
 222        int (*givencrypt)(struct aead_givcrypt_request *req);
 223        int (*givdecrypt)(struct aead_givcrypt_request *req);
 224
 225        const char *geniv;
 226
 227        unsigned int ivsize;
 228        unsigned int maxauthsize;
 229};
 230
 231struct blkcipher_alg {
 232        int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
 233                      unsigned int keylen);
 234        int (*encrypt)(struct blkcipher_desc *desc,
 235                       struct scatterlist *dst, struct scatterlist *src,
 236                       unsigned int nbytes);
 237        int (*decrypt)(struct blkcipher_desc *desc,
 238                       struct scatterlist *dst, struct scatterlist *src,
 239                       unsigned int nbytes);
 240
 241        const char *geniv;
 242
 243        unsigned int min_keysize;
 244        unsigned int max_keysize;
 245        unsigned int ivsize;
 246};
 247
 248struct cipher_alg {
 249        unsigned int cia_min_keysize;
 250        unsigned int cia_max_keysize;
 251        int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
 252                          unsigned int keylen);
 253        void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 254        void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 255};
 256
 257struct compress_alg {
 258        int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
 259                            unsigned int slen, u8 *dst, unsigned int *dlen);
 260        int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
 261                              unsigned int slen, u8 *dst, unsigned int *dlen);
 262};
 263
 264struct rng_alg {
 265        int (*rng_make_random)(struct crypto_rng *tfm, u8 *rdata,
 266                               unsigned int dlen);
 267        int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
 268
 269        unsigned int seedsize;
 270};
 271
 272
 273#define cra_ablkcipher  cra_u.ablkcipher
 274#define cra_aead        cra_u.aead
 275#define cra_blkcipher   cra_u.blkcipher
 276#define cra_cipher      cra_u.cipher
 277#define cra_compress    cra_u.compress
 278#define cra_rng         cra_u.rng
 279
 280struct crypto_alg {
 281        struct list_head cra_list;
 282        struct list_head cra_users;
 283
 284        u32 cra_flags;
 285        unsigned int cra_blocksize;
 286        unsigned int cra_ctxsize;
 287        unsigned int cra_alignmask;
 288
 289        int cra_priority;
 290        atomic_t cra_refcnt;
 291
 292        char cra_name[CRYPTO_MAX_ALG_NAME];
 293        char cra_driver_name[CRYPTO_MAX_ALG_NAME];
 294
 295        const struct crypto_type *cra_type;
 296
 297        union {
 298                struct ablkcipher_alg ablkcipher;
 299                struct aead_alg aead;
 300                struct blkcipher_alg blkcipher;
 301                struct cipher_alg cipher;
 302                struct compress_alg compress;
 303                struct rng_alg rng;
 304        } cra_u;
 305
 306        int (*cra_init)(struct crypto_tfm *tfm);
 307        void (*cra_exit)(struct crypto_tfm *tfm);
 308        void (*cra_destroy)(struct crypto_alg *alg);
 309        
 310        struct module *cra_module;
 311};
 312
 313/*
 314 * Algorithm registration interface.
 315 */
 316int crypto_register_alg(struct crypto_alg *alg);
 317int crypto_unregister_alg(struct crypto_alg *alg);
 318int crypto_register_algs(struct crypto_alg *algs, int count);
 319int crypto_unregister_algs(struct crypto_alg *algs, int count);
 320
 321/*
 322 * Algorithm query interface.
 323 */
 324int crypto_has_alg(const char *name, u32 type, u32 mask);
 325
 326/*
 327 * Transforms: user-instantiated objects which encapsulate algorithms
 328 * and core processing logic.  Managed via crypto_alloc_*() and
 329 * crypto_free_*(), as well as the various helpers below.
 330 */
 331
 332struct ablkcipher_tfm {
 333        int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
 334                      unsigned int keylen);
 335        int (*encrypt)(struct ablkcipher_request *req);
 336        int (*decrypt)(struct ablkcipher_request *req);
 337        int (*givencrypt)(struct skcipher_givcrypt_request *req);
 338        int (*givdecrypt)(struct skcipher_givcrypt_request *req);
 339
 340        struct crypto_ablkcipher *base;
 341
 342        unsigned int ivsize;
 343        unsigned int reqsize;
 344};
 345
 346struct aead_tfm {
 347        int (*setkey)(struct crypto_aead *tfm, const u8 *key,
 348                      unsigned int keylen);
 349        int (*encrypt)(struct aead_request *req);
 350        int (*decrypt)(struct aead_request *req);
 351        int (*givencrypt)(struct aead_givcrypt_request *req);
 352        int (*givdecrypt)(struct aead_givcrypt_request *req);
 353
 354        struct crypto_aead *base;
 355
 356        unsigned int ivsize;
 357        unsigned int authsize;
 358        unsigned int reqsize;
 359};
 360
 361struct blkcipher_tfm {
 362        void *iv;
 363        int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
 364                      unsigned int keylen);
 365        int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
 366                       struct scatterlist *src, unsigned int nbytes);
 367        int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
 368                       struct scatterlist *src, unsigned int nbytes);
 369};
 370
 371struct cipher_tfm {
 372        int (*cit_setkey)(struct crypto_tfm *tfm,
 373                          const u8 *key, unsigned int keylen);
 374        void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 375        void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 376};
 377
 378struct hash_tfm {
 379        int (*init)(struct hash_desc *desc);
 380        int (*update)(struct hash_desc *desc,
 381                      struct scatterlist *sg, unsigned int nsg);
 382        int (*final)(struct hash_desc *desc, u8 *out);
 383        int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
 384                      unsigned int nsg, u8 *out);
 385        int (*setkey)(struct crypto_hash *tfm, const u8 *key,
 386                      unsigned int keylen);
 387        unsigned int digestsize;
 388};
 389
 390struct compress_tfm {
 391        int (*cot_compress)(struct crypto_tfm *tfm,
 392                            const u8 *src, unsigned int slen,
 393                            u8 *dst, unsigned int *dlen);
 394        int (*cot_decompress)(struct crypto_tfm *tfm,
 395                              const u8 *src, unsigned int slen,
 396                              u8 *dst, unsigned int *dlen);
 397};
 398
 399struct rng_tfm {
 400        int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
 401                              unsigned int dlen);
 402        int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
 403};
 404
 405#define crt_ablkcipher  crt_u.ablkcipher
 406#define crt_aead        crt_u.aead
 407#define crt_blkcipher   crt_u.blkcipher
 408#define crt_cipher      crt_u.cipher
 409#define crt_hash        crt_u.hash
 410#define crt_compress    crt_u.compress
 411#define crt_rng         crt_u.rng
 412
 413struct crypto_tfm {
 414
 415        u32 crt_flags;
 416        
 417        union {
 418                struct ablkcipher_tfm ablkcipher;
 419                struct aead_tfm aead;
 420                struct blkcipher_tfm blkcipher;
 421                struct cipher_tfm cipher;
 422                struct hash_tfm hash;
 423                struct compress_tfm compress;
 424                struct rng_tfm rng;
 425        } crt_u;
 426
 427        void (*exit)(struct crypto_tfm *tfm);
 428        
 429        struct crypto_alg *__crt_alg;
 430
 431        void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
 432};
 433
 434struct crypto_ablkcipher {
 435        struct crypto_tfm base;
 436};
 437
 438struct crypto_aead {
 439        struct crypto_tfm base;
 440};
 441
 442struct crypto_blkcipher {
 443        struct crypto_tfm base;
 444};
 445
 446struct crypto_cipher {
 447        struct crypto_tfm base;
 448};
 449
 450struct crypto_comp {
 451        struct crypto_tfm base;
 452};
 453
 454struct crypto_hash {
 455        struct crypto_tfm base;
 456};
 457
 458struct crypto_rng {
 459        struct crypto_tfm base;
 460};
 461
 462enum {
 463        CRYPTOA_UNSPEC,
 464        CRYPTOA_ALG,
 465        CRYPTOA_TYPE,
 466        CRYPTOA_U32,
 467        __CRYPTOA_MAX,
 468};
 469
 470#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
 471
 472/* Maximum number of (rtattr) parameters for each template. */
 473#define CRYPTO_MAX_ATTRS 32
 474
 475struct crypto_attr_alg {
 476        char name[CRYPTO_MAX_ALG_NAME];
 477};
 478
 479struct crypto_attr_type {
 480        u32 type;
 481        u32 mask;
 482};
 483
 484struct crypto_attr_u32 {
 485        u32 num;
 486};
 487
 488/* 
 489 * Transform user interface.
 490 */
 491 
 492struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
 493void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm);
 494
 495static inline void crypto_free_tfm(struct crypto_tfm *tfm)
 496{
 497        return crypto_destroy_tfm(tfm, tfm);
 498}
 499
 500int alg_test(const char *driver, const char *alg, u32 type, u32 mask);
 501
 502/*
 503 * Transform helpers which query the underlying algorithm.
 504 */
 505static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm)
 506{
 507        return tfm->__crt_alg->cra_name;
 508}
 509
 510static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
 511{
 512        return tfm->__crt_alg->cra_driver_name;
 513}
 514
 515static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
 516{
 517        return tfm->__crt_alg->cra_priority;
 518}
 519
 520static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
 521{
 522        return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
 523}
 524
 525static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
 526{
 527        return tfm->__crt_alg->cra_blocksize;
 528}
 529
 530static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
 531{
 532        return tfm->__crt_alg->cra_alignmask;
 533}
 534
 535static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
 536{
 537        return tfm->crt_flags;
 538}
 539
 540static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
 541{
 542        tfm->crt_flags |= flags;
 543}
 544
 545static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
 546{
 547        tfm->crt_flags &= ~flags;
 548}
 549
 550static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
 551{
 552        return tfm->__crt_ctx;
 553}
 554
 555static inline unsigned int crypto_tfm_ctx_alignment(void)
 556{
 557        struct crypto_tfm *tfm;
 558        return __alignof__(tfm->__crt_ctx);
 559}
 560
 561/*
 562 * API wrappers.
 563 */
 564static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
 565        struct crypto_tfm *tfm)
 566{
 567        return (struct crypto_ablkcipher *)tfm;
 568}
 569
 570static inline u32 crypto_skcipher_type(u32 type)
 571{
 572        type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
 573        type |= CRYPTO_ALG_TYPE_BLKCIPHER;
 574        return type;
 575}
 576
 577static inline u32 crypto_skcipher_mask(u32 mask)
 578{
 579        mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
 580        mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
 581        return mask;
 582}
 583
 584struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
 585                                                  u32 type, u32 mask);
 586
 587static inline struct crypto_tfm *crypto_ablkcipher_tfm(
 588        struct crypto_ablkcipher *tfm)
 589{
 590        return &tfm->base;
 591}
 592
 593static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
 594{
 595        crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
 596}
 597
 598static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
 599                                        u32 mask)
 600{
 601        return crypto_has_alg(alg_name, crypto_skcipher_type(type),
 602                              crypto_skcipher_mask(mask));
 603}
 604
 605static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
 606        struct crypto_ablkcipher *tfm)
 607{
 608        return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
 609}
 610
 611static inline unsigned int crypto_ablkcipher_ivsize(
 612        struct crypto_ablkcipher *tfm)
 613{
 614        return crypto_ablkcipher_crt(tfm)->ivsize;
 615}
 616
 617static inline unsigned int crypto_ablkcipher_blocksize(
 618        struct crypto_ablkcipher *tfm)
 619{
 620        return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
 621}
 622
 623static inline unsigned int crypto_ablkcipher_alignmask(
 624        struct crypto_ablkcipher *tfm)
 625{
 626        return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
 627}
 628
 629static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
 630{
 631        return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm));
 632}
 633
 634static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm,
 635                                               u32 flags)
 636{
 637        crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags);
 638}
 639
 640static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
 641                                                 u32 flags)
 642{
 643        crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
 644}
 645
 646static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
 647                                           const u8 *key, unsigned int keylen)
 648{
 649        struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);
 650
 651        return crt->setkey(crt->base, key, keylen);
 652}
 653
 654static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
 655        struct ablkcipher_request *req)
 656{
 657        return __crypto_ablkcipher_cast(req->base.tfm);
 658}
 659
 660static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
 661{
 662        struct ablkcipher_tfm *crt =
 663                crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
 664        return crt->encrypt(req);
 665}
 666
 667static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
 668{
 669        struct ablkcipher_tfm *crt =
 670                crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
 671        return crt->decrypt(req);
 672}
 673
 674static inline unsigned int crypto_ablkcipher_reqsize(
 675        struct crypto_ablkcipher *tfm)
 676{
 677        return crypto_ablkcipher_crt(tfm)->reqsize;
 678}
 679
 680static inline void ablkcipher_request_set_tfm(
 681        struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
 682{
 683        req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
 684}
 685
 686static inline struct ablkcipher_request *ablkcipher_request_cast(
 687        struct crypto_async_request *req)
 688{
 689        return container_of(req, struct ablkcipher_request, base);
 690}
 691
 692static inline struct ablkcipher_request *ablkcipher_request_alloc(
 693        struct crypto_ablkcipher *tfm, gfp_t gfp)
 694{
 695        struct ablkcipher_request *req;
 696
 697        req = kmalloc(sizeof(struct ablkcipher_request) +
 698                      crypto_ablkcipher_reqsize(tfm), gfp);
 699
 700        if (likely(req))
 701                ablkcipher_request_set_tfm(req, tfm);
 702
 703        return req;
 704}
 705
 706static inline void ablkcipher_request_free(struct ablkcipher_request *req)
 707{
 708        kzfree(req);
 709}
 710
 711static inline void ablkcipher_request_set_callback(
 712        struct ablkcipher_request *req,
 713        u32 flags, crypto_completion_t complete, void *data)
 714{
 715        req->base.complete = complete;
 716        req->base.data = data;
 717        req->base.flags = flags;
 718}
 719
 720static inline void ablkcipher_request_set_crypt(
 721        struct ablkcipher_request *req,
 722        struct scatterlist *src, struct scatterlist *dst,
 723        unsigned int nbytes, void *iv)
 724{
 725        req->src = src;
 726        req->dst = dst;
 727        req->nbytes = nbytes;
 728        req->info = iv;
 729}
 730
 731static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
 732{
 733        return (struct crypto_aead *)tfm;
 734}
 735
 736struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);
 737
 738static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
 739{
 740        return &tfm->base;
 741}
 742
 743static inline void crypto_free_aead(struct crypto_aead *tfm)
 744{
 745        crypto_free_tfm(crypto_aead_tfm(tfm));
 746}
 747
 748static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm)
 749{
 750        return &crypto_aead_tfm(tfm)->crt_aead;
 751}
 752
 753static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
 754{
 755        return crypto_aead_crt(tfm)->ivsize;
 756}
 757
 758static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
 759{
 760        return crypto_aead_crt(tfm)->authsize;
 761}
 762
 763static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
 764{
 765        return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
 766}
 767
 768static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm)
 769{
 770        return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm));
 771}
 772
 773static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm)
 774{
 775        return crypto_tfm_get_flags(crypto_aead_tfm(tfm));
 776}
 777
 778static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags)
 779{
 780        crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags);
 781}
 782
 783static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
 784{
 785        crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
 786}
 787
 788static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
 789                                     unsigned int keylen)
 790{
 791        struct aead_tfm *crt = crypto_aead_crt(tfm);
 792
 793        return crt->setkey(crt->base, key, keylen);
 794}
 795
 796int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
 797
 798static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
 799{
 800        return __crypto_aead_cast(req->base.tfm);
 801}
 802
 803static inline int crypto_aead_encrypt(struct aead_request *req)
 804{
 805        return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req);
 806}
 807
 808static inline int crypto_aead_decrypt(struct aead_request *req)
 809{
 810        return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
 811}
 812
 813static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
 814{
 815        return crypto_aead_crt(tfm)->reqsize;
 816}
 817
 818static inline void aead_request_set_tfm(struct aead_request *req,
 819                                        struct crypto_aead *tfm)
 820{
 821        req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base);
 822}
 823
 824static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
 825                                                      gfp_t gfp)
 826{
 827        struct aead_request *req;
 828
 829        req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp);
 830
 831        if (likely(req))
 832                aead_request_set_tfm(req, tfm);
 833
 834        return req;
 835}
 836
 837static inline void aead_request_free(struct aead_request *req)
 838{
 839        kzfree(req);
 840}
 841
 842static inline void aead_request_set_callback(struct aead_request *req,
 843                                             u32 flags,
 844                                             crypto_completion_t complete,
 845                                             void *data)
 846{
 847        req->base.complete = complete;
 848        req->base.data = data;
 849        req->base.flags = flags;
 850}
 851
 852static inline void aead_request_set_crypt(struct aead_request *req,
 853                                          struct scatterlist *src,
 854                                          struct scatterlist *dst,
 855                                          unsigned int cryptlen, u8 *iv)
 856{
 857        req->src = src;
 858        req->dst = dst;
 859        req->cryptlen = cryptlen;
 860        req->iv = iv;
 861}
 862
 863static inline void aead_request_set_assoc(struct aead_request *req,
 864                                          struct scatterlist *assoc,
 865                                          unsigned int assoclen)
 866{
 867        req->assoc = assoc;
 868        req->assoclen = assoclen;
 869}
 870
 871static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
 872        struct crypto_tfm *tfm)
 873{
 874        return (struct crypto_blkcipher *)tfm;
 875}
 876
 877static inline struct crypto_blkcipher *crypto_blkcipher_cast(
 878        struct crypto_tfm *tfm)
 879{
 880        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
 881        return __crypto_blkcipher_cast(tfm);
 882}
 883
 884static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
 885        const char *alg_name, u32 type, u32 mask)
 886{
 887        type &= ~CRYPTO_ALG_TYPE_MASK;
 888        type |= CRYPTO_ALG_TYPE_BLKCIPHER;
 889        mask |= CRYPTO_ALG_TYPE_MASK;
 890
 891        return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
 892}
 893
 894static inline struct crypto_tfm *crypto_blkcipher_tfm(
 895        struct crypto_blkcipher *tfm)
 896{
 897        return &tfm->base;
 898}
 899
 900static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
 901{
 902        crypto_free_tfm(crypto_blkcipher_tfm(tfm));
 903}
 904
 905static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
 906{
 907        type &= ~CRYPTO_ALG_TYPE_MASK;
 908        type |= CRYPTO_ALG_TYPE_BLKCIPHER;
 909        mask |= CRYPTO_ALG_TYPE_MASK;
 910
 911        return crypto_has_alg(alg_name, type, mask);
 912}
 913
 914static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
 915{
 916        return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
 917}
 918
 919static inline struct blkcipher_tfm *crypto_blkcipher_crt(
 920        struct crypto_blkcipher *tfm)
 921{
 922        return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
 923}
 924
 925static inline struct blkcipher_alg *crypto_blkcipher_alg(
 926        struct crypto_blkcipher *tfm)
 927{
 928        return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
 929}
 930
 931static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
 932{
 933        return crypto_blkcipher_alg(tfm)->ivsize;
 934}
 935
 936static inline unsigned int crypto_blkcipher_blocksize(
 937        struct crypto_blkcipher *tfm)
 938{
 939        return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
 940}
 941
 942static inline unsigned int crypto_blkcipher_alignmask(
 943        struct crypto_blkcipher *tfm)
 944{
 945        return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
 946}
 947
 948static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
 949{
 950        return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
 951}
 952
 953static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
 954                                              u32 flags)
 955{
 956        crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
 957}
 958
 959static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
 960                                                u32 flags)
 961{
 962        crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
 963}
 964
 965static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
 966                                          const u8 *key, unsigned int keylen)
 967{
 968        return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
 969                                                 key, keylen);
 970}
 971
 972static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
 973                                           struct scatterlist *dst,
 974                                           struct scatterlist *src,
 975                                           unsigned int nbytes)
 976{
 977        desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
 978        return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
 979}
 980
 981static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
 982                                              struct scatterlist *dst,
 983                                              struct scatterlist *src,
 984                                              unsigned int nbytes)
 985{
 986        return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
 987}
 988
 989static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
 990                                           struct scatterlist *dst,
 991                                           struct scatterlist *src,
 992                                           unsigned int nbytes)
 993{
 994        desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
 995        return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
 996}
 997
 998static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
 999                                              struct scatterlist *dst,
1000                                              struct scatterlist *src,
1001                                              unsigned int nbytes)
1002{
1003        return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
1004}
1005
1006static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
1007                                           const u8 *src, unsigned int len)
1008{
1009        memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
1010}
1011
1012static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
1013                                           u8 *dst, unsigned int len)
1014{
1015        memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
1016}
1017
1018static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
1019{
1020        return (struct crypto_cipher *)tfm;
1021}
1022
1023static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
1024{
1025        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
1026        return __crypto_cipher_cast(tfm);
1027}
1028
1029static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
1030                                                        u32 type, u32 mask)
1031{
1032        type &= ~CRYPTO_ALG_TYPE_MASK;
1033        type |= CRYPTO_ALG_TYPE_CIPHER;
1034        mask |= CRYPTO_ALG_TYPE_MASK;
1035
1036        return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
1037}
1038
1039static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
1040{
1041        return &tfm->base;
1042}
1043
1044static inline void crypto_free_cipher(struct crypto_cipher *tfm)
1045{
1046        crypto_free_tfm(crypto_cipher_tfm(tfm));
1047}
1048
1049static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
1050{
1051        type &= ~CRYPTO_ALG_TYPE_MASK;
1052        type |= CRYPTO_ALG_TYPE_CIPHER;
1053        mask |= CRYPTO_ALG_TYPE_MASK;
1054
1055        return crypto_has_alg(alg_name, type, mask);
1056}
1057
1058static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
1059{
1060        return &crypto_cipher_tfm(tfm)->crt_cipher;
1061}
1062
1063static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
1064{
1065        return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
1066}
1067
1068static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
1069{
1070        return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
1071}
1072
1073static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
1074{
1075        return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
1076}
1077
1078static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
1079                                           u32 flags)
1080{
1081        crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
1082}
1083
1084static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
1085                                             u32 flags)
1086{
1087        crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
1088}
1089
1090static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
1091                                       const u8 *key, unsigned int keylen)
1092{
1093        return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm),
1094                                                  key, keylen);
1095}
1096
1097static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
1098                                             u8 *dst, const u8 *src)
1099{
1100        crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm),
1101                                                dst, src);
1102}
1103
1104static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
1105                                             u8 *dst, const u8 *src)
1106{
1107        crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm),
1108                                                dst, src);
1109}
1110
1111static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)
1112{
1113        return (struct crypto_hash *)tfm;
1114}
1115
1116static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm)
1117{
1118        BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) &
1119               CRYPTO_ALG_TYPE_HASH_MASK);
1120        return __crypto_hash_cast(tfm);
1121}
1122
1123static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
1124                                                    u32 type, u32 mask)
1125{
1126        type &= ~CRYPTO_ALG_TYPE_MASK;
1127        mask &= ~CRYPTO_ALG_TYPE_MASK;
1128        type |= CRYPTO_ALG_TYPE_HASH;
1129        mask |= CRYPTO_ALG_TYPE_HASH_MASK;
1130
1131        return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask));
1132}
1133
1134static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm)
1135{
1136        return &tfm->base;
1137}
1138
1139static inline void crypto_free_hash(struct crypto_hash *tfm)
1140{
1141        crypto_free_tfm(crypto_hash_tfm(tfm));
1142}
1143
1144static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
1145{
1146        type &= ~CRYPTO_ALG_TYPE_MASK;
1147        mask &= ~CRYPTO_ALG_TYPE_MASK;
1148        type |= CRYPTO_ALG_TYPE_HASH;
1149        mask |= CRYPTO_ALG_TYPE_HASH_MASK;
1150
1151        return crypto_has_alg(alg_name, type, mask);
1152}
1153
1154static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm)
1155{
1156        return &crypto_hash_tfm(tfm)->crt_hash;
1157}
1158
1159static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm)
1160{
1161        return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm));
1162}
1163
1164static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm)
1165{
1166        return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm));
1167}
1168
1169static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm)
1170{
1171        return crypto_hash_crt(tfm)->digestsize;
1172}
1173
1174static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm)
1175{
1176        return crypto_tfm_get_flags(crypto_hash_tfm(tfm));
1177}
1178
1179static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags)
1180{
1181        crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags);
1182}
1183
1184static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags)
1185{
1186        crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags);
1187}
1188
1189static inline int crypto_hash_init(struct hash_desc *desc)
1190{
1191        return crypto_hash_crt(desc->tfm)->init(desc);
1192}
1193
1194static inline int crypto_hash_update(struct hash_desc *desc,
1195                                     struct scatterlist *sg,
1196                                     unsigned int nbytes)
1197{
1198        return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes);
1199}
1200
1201static inline int crypto_hash_final(struct hash_desc *desc, u8 *out)
1202{
1203        return crypto_hash_crt(desc->tfm)->final(desc, out);
1204}
1205
1206static inline int crypto_hash_digest(struct hash_desc *desc,
1207                                     struct scatterlist *sg,
1208                                     unsigned int nbytes, u8 *out)
1209{
1210        return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out);
1211}
1212
1213static inline int crypto_hash_setkey(struct crypto_hash *hash,
1214                                     const u8 *key, unsigned int keylen)
1215{
1216        return crypto_hash_crt(hash)->setkey(hash, key, keylen);
1217}
1218
1219static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
1220{
1221        return (struct crypto_comp *)tfm;
1222}
1223
1224static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm)
1225{
1226        BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) &
1227               CRYPTO_ALG_TYPE_MASK);
1228        return __crypto_comp_cast(tfm);
1229}
1230
1231static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
1232                                                    u32 type, u32 mask)
1233{
1234        type &= ~CRYPTO_ALG_TYPE_MASK;
1235        type |= CRYPTO_ALG_TYPE_COMPRESS;
1236        mask |= CRYPTO_ALG_TYPE_MASK;
1237
1238        return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
1239}
1240
1241static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
1242{
1243        return &tfm->base;
1244}
1245
1246static inline void crypto_free_comp(struct crypto_comp *tfm)
1247{
1248        crypto_free_tfm(crypto_comp_tfm(tfm));
1249}
1250
1251static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
1252{
1253        type &= ~CRYPTO_ALG_TYPE_MASK;
1254        type |= CRYPTO_ALG_TYPE_COMPRESS;
1255        mask |= CRYPTO_ALG_TYPE_MASK;
1256
1257        return crypto_has_alg(alg_name, type, mask);
1258}
1259
1260static inline const char *crypto_comp_name(struct crypto_comp *tfm)
1261{
1262        return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
1263}
1264
1265static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm)
1266{
1267        return &crypto_comp_tfm(tfm)->crt_compress;
1268}
1269
1270static inline int crypto_comp_compress(struct crypto_comp *tfm,
1271                                       const u8 *src, unsigned int slen,
1272                                       u8 *dst, unsigned int *dlen)
1273{
1274        return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
1275                                                  src, slen, dst, dlen);
1276}
1277
1278static inline int crypto_comp_decompress(struct crypto_comp *tfm,
1279                                         const u8 *src, unsigned int slen,
1280                                         u8 *dst, unsigned int *dlen)
1281{
1282        return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
1283                                                    src, slen, dst, dlen);
1284}
1285
1286#endif  /* _LINUX_CRYPTO_H */
1287
1288
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