| /* |
| * 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 <asm/atomic.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/list.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_DIGEST 0x00000002 |
| #define CRYPTO_ALG_TYPE_HASH 0x00000003 |
| #define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004 |
| #define CRYPTO_ALG_TYPE_COMPRESS 0x00000005 |
| |
| #define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e |
| |
| #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 |
| |
| /* |
| * 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. |
| */ |
| #if defined(ARCH_KMALLOC_MINALIGN) |
| #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN |
| #elif defined(ARCH_SLAB_MINALIGN) |
| #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN |
| #endif |
| |
| #ifdef CRYPTO_MINALIGN |
| #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN))) |
| #else |
| #define CRYPTO_MINALIGN_ATTR |
| #endif |
| |
| struct scatterlist; |
| struct crypto_ablkcipher; |
| struct crypto_async_request; |
| struct crypto_blkcipher; |
| struct crypto_hash; |
| struct crypto_tfm; |
| struct crypto_type; |
| |
| 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 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 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); |
| |
| 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 digest_alg { |
| unsigned int dia_digestsize; |
| void (*dia_init)(struct crypto_tfm *tfm); |
| void (*dia_update)(struct crypto_tfm *tfm, const u8 *data, |
| unsigned int len); |
| void (*dia_final)(struct crypto_tfm *tfm, u8 *out); |
| int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key, |
| unsigned int keylen); |
| }; |
| |
| struct hash_alg { |
| int (*init)(struct hash_desc *desc); |
| int (*update)(struct hash_desc *desc, struct scatterlist *sg, |
| unsigned int nbytes); |
| int (*final)(struct hash_desc *desc, u8 *out); |
| int (*digest)(struct hash_desc *desc, struct scatterlist *sg, |
| unsigned int nbytes, u8 *out); |
| int (*setkey)(struct crypto_hash *tfm, const u8 *key, |
| unsigned int keylen); |
| |
| unsigned int digestsize; |
| }; |
| |
| 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); |
| }; |
| |
| #define cra_blkcipher cra_u.blkcipher |
| #define cra_cipher cra_u.cipher |
| #define cra_digest cra_u.digest |
| #define cra_hash cra_u.hash |
| #define cra_compress cra_u.compress |
| |
| 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 blkcipher_alg blkcipher; |
| struct cipher_alg cipher; |
| struct digest_alg digest; |
| struct hash_alg hash; |
| struct compress_alg compress; |
| } 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); |
| |
| /* |
| * Algorithm query interface. |
| */ |
| #ifdef CONFIG_CRYPTO |
| int crypto_has_alg(const char *name, u32 type, u32 mask); |
| #else |
| static inline int crypto_has_alg(const char *name, u32 type, u32 mask) |
| { |
| return 0; |
| } |
| #endif |
| |
| /* |
| * 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); |
| unsigned int ivsize; |
| 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 { |
| void *cit_iv; |
| unsigned int cit_ivsize; |
| u32 cit_mode; |
| int (*cit_setkey)(struct crypto_tfm *tfm, |
| const u8 *key, unsigned int keylen); |
| int (*cit_encrypt)(struct crypto_tfm *tfm, |
| struct scatterlist *dst, |
| struct scatterlist *src, |
| unsigned int nbytes); |
| int (*cit_encrypt_iv)(struct crypto_tfm *tfm, |
| struct scatterlist *dst, |
| struct scatterlist *src, |
| unsigned int nbytes, u8 *iv); |
| int (*cit_decrypt)(struct crypto_tfm *tfm, |
| struct scatterlist *dst, |
| struct scatterlist *src, |
| unsigned int nbytes); |
| int (*cit_decrypt_iv)(struct crypto_tfm *tfm, |
| struct scatterlist *dst, |
| struct scatterlist *src, |
| unsigned int nbytes, u8 *iv); |
| void (*cit_xor_block)(u8 *dst, const u8 *src); |
| 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); |
| }; |
| |
| #define crt_ablkcipher crt_u.ablkcipher |
| #define crt_blkcipher crt_u.blkcipher |
| #define crt_cipher crt_u.cipher |
| #define crt_hash crt_u.hash |
| #define crt_compress crt_u.compress |
| |
| struct crypto_tfm { |
| |
| u32 crt_flags; |
| |
| union { |
| struct ablkcipher_tfm ablkcipher; |
| struct blkcipher_tfm blkcipher; |
| struct cipher_tfm cipher; |
| struct hash_tfm hash; |
| struct compress_tfm compress; |
| } crt_u; |
| |
| struct crypto_alg *__crt_alg; |
| |
| void *__crt_ctx[] CRYPTO_MINALIGN_ATTR; |
| }; |
| |
| struct crypto_ablkcipher { |
| 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; |
| }; |
| |
| enum { |
| CRYPTOA_UNSPEC, |
| CRYPTOA_ALG, |
| CRYPTOA_TYPE, |
| __CRYPTOA_MAX, |
| }; |
| |
| #define CRYPTOA_MAX (__CRYPTOA_MAX - 1) |
| |
| struct crypto_attr_alg { |
| char name[CRYPTO_MAX_ALG_NAME]; |
| }; |
| |
| struct crypto_attr_type { |
| u32 type; |
| u32 mask; |
| }; |
| |
| /* |
| * Transform user interface. |
| */ |
| |
| struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags); |
| struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask); |
| void crypto_free_tfm(struct crypto_tfm *tfm); |
| |
| /* |
| * 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 const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm) |
| { |
| return module_name(tfm->__crt_alg->cra_module); |
| } |
| |
| 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 struct crypto_ablkcipher *crypto_alloc_ablkcipher( |
| 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_ablkcipher_cast( |
| crypto_alloc_base(alg_name, type, 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) |
| { |
| 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 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) |
| { |
| return crypto_ablkcipher_crt(tfm)->setkey(tfm, 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 int crypto_ablkcipher_reqsize(struct crypto_ablkcipher *tfm) |
| { |
| return crypto_ablkcipher_crt(tfm)->reqsize; |
| } |
| |
| 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)) |
| req->base.tfm = crypto_ablkcipher_tfm(tfm); |
| |
| return req; |
| } |
| |
| static inline void ablkcipher_request_free(struct ablkcipher_request *req) |
| { |
| kfree(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_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 | CRYPTO_ALG_ASYNC); |
| type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
| mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC; |
| |
| 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 | CRYPTO_ALG_ASYNC); |
| type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
| mask |= CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC; |
| |
| 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; |
| 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; |
| 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 */ |
| |