X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fcrypto.h;h=5e02d1b46370c4a9b496359bbbe98eca883b6229;hb=51ceddade0fb1e15f080b2555f3b3e1d68c6707e;hp=0be666b5046322431e1639b4ca2fefdf6c0180eb;hpb=7226bc877a22244e8003924031435a4bffd52654;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 0be666b..5e02d1b 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -6,7 +6,7 @@ * Copyright (c) 2005 Herbert Xu * * Portions derived from Cryptoapi, by Alexander Kjeldaas - * and Nettle, by Niels Möller. + * 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 @@ -31,8 +31,15 @@ #define CRYPTO_ALG_TYPE_MASK 0x0000000f #define CRYPTO_ALG_TYPE_CIPHER 0x00000001 #define CRYPTO_ALG_TYPE_DIGEST 0x00000002 -#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000003 -#define CRYPTO_ALG_TYPE_COMPRESS 0x00000004 +#define CRYPTO_ALG_TYPE_HASH 0x00000003 +#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004 +#define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005 +#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006 +#define CRYPTO_ALG_TYPE_COMPRESS 0x00000008 +#define CRYPTO_ALG_TYPE_AEAD 0x00000009 + +#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e +#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c #define CRYPTO_ALG_LARVAL 0x00000010 #define CRYPTO_ALG_DEAD 0x00000020 @@ -40,19 +47,26 @@ #define CRYPTO_ALG_ASYNC 0x00000080 /* + * Set this bit if and only if the algorithm requires another algorithm of + * the same type to handle corner cases. + */ +#define CRYPTO_ALG_NEED_FALLBACK 0x00000100 + +/* + * This bit is set for symmetric key ciphers that have already been wrapped + * with a generic IV generator to prevent them from being wrapped again. + */ +#define CRYPTO_ALG_GENIV 0x00000200 + +/* * Transform masks and values (for crt_flags). */ -#define CRYPTO_TFM_MODE_MASK 0x000000ff #define CRYPTO_TFM_REQ_MASK 0x000fff00 #define CRYPTO_TFM_RES_MASK 0xfff00000 -#define CRYPTO_TFM_MODE_ECB 0x00000001 -#define CRYPTO_TFM_MODE_CBC 0x00000002 -#define CRYPTO_TFM_MODE_CFB 0x00000004 -#define CRYPTO_TFM_MODE_CTR 0x00000008 - #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 @@ -62,12 +76,8 @@ /* * Miscellaneous stuff. */ -#define CRYPTO_UNSPEC 0 #define CRYPTO_MAX_ALG_NAME 64 -#define CRYPTO_DIR_ENCRYPT 1 -#define CRYPTO_DIR_DECRYPT 0 - /* * 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 @@ -80,18 +90,72 @@ #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN #elif defined(ARCH_SLAB_MINALIGN) #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN +#else +#define CRYPTO_MINALIGN __alignof__(unsigned long long) #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_aead; struct crypto_blkcipher; +struct crypto_hash; struct crypto_tfm; struct crypto_type; +struct aead_givcrypt_request; +struct skcipher_givcrypt_request; + +typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err); + +struct crypto_async_request { + struct list_head list; + crypto_completion_t complete; + void *data; + struct crypto_tfm *tfm; + + u32 flags; +}; + +struct ablkcipher_request { + struct crypto_async_request base; + + unsigned int nbytes; + + void *info; + + struct scatterlist *src; + struct scatterlist *dst; + + void *__ctx[] CRYPTO_MINALIGN_ATTR; +}; + +/** + * struct aead_request - AEAD request + * @base: Common attributes for async crypto requests + * @assoclen: Length in bytes of associated data for authentication + * @cryptlen: Length of data to be encrypted or decrypted + * @iv: Initialisation vector + * @assoc: Associated data + * @src: Source data + * @dst: Destination data + * @__ctx: Start of private context data + */ +struct aead_request { + struct crypto_async_request base; + + unsigned int assoclen; + unsigned int cryptlen; + + u8 *iv; + + struct scatterlist *assoc; + struct scatterlist *src; + struct scatterlist *dst; + + void *__ctx[] CRYPTO_MINALIGN_ATTR; +}; struct blkcipher_desc { struct crypto_blkcipher *tfm; @@ -107,10 +171,45 @@ struct cipher_desc { void *info; }; +struct hash_desc { + struct crypto_hash *tfm; + u32 flags; +}; + /* * Algorithms: modular crypto algorithm implementations, managed * via crypto_register_alg() and crypto_unregister_alg(). */ +struct ablkcipher_alg { + int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key, + unsigned int keylen); + int (*encrypt)(struct ablkcipher_request *req); + int (*decrypt)(struct ablkcipher_request *req); + int (*givencrypt)(struct skcipher_givcrypt_request *req); + int (*givdecrypt)(struct skcipher_givcrypt_request *req); + + const char *geniv; + + unsigned int min_keysize; + unsigned int max_keysize; + unsigned int ivsize; +}; + +struct aead_alg { + int (*setkey)(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen); + int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize); + int (*encrypt)(struct aead_request *req); + int (*decrypt)(struct aead_request *req); + int (*givencrypt)(struct aead_givcrypt_request *req); + int (*givdecrypt)(struct aead_givcrypt_request *req); + + const char *geniv; + + unsigned int ivsize; + unsigned int maxauthsize; +}; + struct blkcipher_alg { int (*setkey)(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen); @@ -121,6 +220,8 @@ struct blkcipher_alg { struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes); + const char *geniv; + unsigned int min_keysize; unsigned int max_keysize; unsigned int ivsize; @@ -133,19 +234,6 @@ struct cipher_alg { 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); - - unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc, - u8 *dst, const u8 *src, - unsigned int nbytes) __deprecated; - unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc, - u8 *dst, const u8 *src, - unsigned int nbytes) __deprecated; - unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc, - u8 *dst, const u8 *src, - unsigned int nbytes) __deprecated; - unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc, - u8 *dst, const u8 *src, - unsigned int nbytes) __deprecated; }; struct digest_alg { @@ -158,6 +246,19 @@ struct digest_alg { 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); @@ -165,9 +266,12 @@ struct compress_alg { unsigned int slen, u8 *dst, unsigned int *dlen); }; +#define cra_ablkcipher cra_u.ablkcipher +#define cra_aead cra_u.aead #define cra_blkcipher cra_u.blkcipher #define cra_cipher cra_u.cipher #define cra_digest cra_u.digest +#define cra_hash cra_u.hash #define cra_compress cra_u.compress struct crypto_alg { @@ -188,9 +292,12 @@ struct crypto_alg { const struct crypto_type *cra_type; union { + struct ablkcipher_alg ablkcipher; + struct aead_alg aead; struct blkcipher_alg blkcipher; struct cipher_alg cipher; struct digest_alg digest; + struct hash_alg hash; struct compress_alg compress; } cra_u; @@ -211,9 +318,9 @@ int crypto_unregister_alg(struct crypto_alg *alg); * Algorithm query interface. */ #ifdef CONFIG_CRYPTO -int crypto_alg_available(const char *name, u32 flags); +int crypto_has_alg(const char *name, u32 type, u32 mask); #else -static inline int crypto_alg_available(const char *name, u32 flags) +static inline int crypto_has_alg(const char *name, u32 type, u32 mask) { return 0; } @@ -225,6 +332,35 @@ static inline int crypto_alg_available(const char *name, u32 flags) * crypto_free_*(), as well as the various helpers below. */ +struct ablkcipher_tfm { + int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key, + unsigned int keylen); + int (*encrypt)(struct ablkcipher_request *req); + int (*decrypt)(struct ablkcipher_request *req); + int (*givencrypt)(struct skcipher_givcrypt_request *req); + int (*givdecrypt)(struct skcipher_givcrypt_request *req); + + struct crypto_ablkcipher *base; + + unsigned int ivsize; + unsigned int reqsize; +}; + +struct aead_tfm { + int (*setkey)(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen); + int (*encrypt)(struct aead_request *req); + int (*decrypt)(struct aead_request *req); + int (*givencrypt)(struct aead_givcrypt_request *req); + int (*givdecrypt)(struct aead_givcrypt_request *req); + + struct crypto_aead *base; + + unsigned int ivsize; + unsigned int authsize; + unsigned int reqsize; +}; + struct blkcipher_tfm { void *iv; int (*setkey)(struct crypto_tfm *tfm, const u8 *key, @@ -236,44 +372,22 @@ struct blkcipher_tfm { }; 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 digest_tfm { - void (*dit_init)(struct crypto_tfm *tfm); - void (*dit_update)(struct crypto_tfm *tfm, - struct scatterlist *sg, unsigned int nsg); - void (*dit_final)(struct crypto_tfm *tfm, u8 *out); - void (*dit_digest)(struct crypto_tfm *tfm, struct scatterlist *sg, - unsigned int nsg, u8 *out); - int (*dit_setkey)(struct crypto_tfm *tfm, - const u8 *key, unsigned int keylen); -#ifdef CONFIG_CRYPTO_HMAC - void *dit_hmac_block; -#endif +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 { @@ -285,9 +399,11 @@ struct compress_tfm { u8 *dst, unsigned int *dlen); }; +#define crt_ablkcipher crt_u.ablkcipher +#define crt_aead crt_u.aead #define crt_blkcipher crt_u.blkcipher #define crt_cipher crt_u.cipher -#define crt_digest crt_u.digest +#define crt_hash crt_u.hash #define crt_compress crt_u.compress struct crypto_tfm { @@ -295,9 +411,11 @@ struct crypto_tfm { u32 crt_flags; union { + struct ablkcipher_tfm ablkcipher; + struct aead_tfm aead; struct blkcipher_tfm blkcipher; struct cipher_tfm cipher; - struct digest_tfm digest; + struct hash_tfm hash; struct compress_tfm compress; } crt_u; @@ -306,21 +424,56 @@ struct crypto_tfm { void *__crt_ctx[] CRYPTO_MINALIGN_ATTR; }; -#define crypto_cipher crypto_tfm +struct crypto_ablkcipher { + struct crypto_tfm base; +}; + +struct crypto_aead { + struct crypto_tfm base; +}; struct crypto_blkcipher { struct crypto_tfm base; }; +struct crypto_cipher { + struct crypto_tfm base; +}; + +struct crypto_comp { + struct crypto_tfm base; +}; + +struct crypto_hash { + struct crypto_tfm base; +}; + enum { CRYPTOA_UNSPEC, CRYPTOA_ALG, + CRYPTOA_TYPE, + CRYPTOA_U32, + __CRYPTOA_MAX, }; +#define CRYPTOA_MAX (__CRYPTOA_MAX - 1) + +/* Maximum number of (rtattr) parameters for each template. */ +#define CRYPTO_MAX_ATTRS 32 + struct crypto_attr_alg { char name[CRYPTO_MAX_ALG_NAME]; }; +struct crypto_attr_type { + u32 type; + u32 mask; +}; + +struct crypto_attr_u32 { + u32 num; +}; + /* * Transform user interface. */ @@ -357,40 +510,11 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm) return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK; } -static unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm) - __deprecated; -static inline unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->__crt_alg->cra_cipher.cia_min_keysize; -} - -static unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm) - __deprecated; -static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->__crt_alg->cra_cipher.cia_max_keysize; -} - -static unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) __deprecated; -static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_ivsize; -} - 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_digestsize(struct crypto_tfm *tfm) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - return tfm->__crt_alg->cra_digest.dia_digestsize; -} - static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm) { return tfm->__crt_alg->cra_alignmask; @@ -425,6 +549,313 @@ static inline unsigned int crypto_tfm_ctx_alignment(void) /* * API wrappers. */ +static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast( + struct crypto_tfm *tfm) +{ + return (struct crypto_ablkcipher *)tfm; +} + +static inline u32 crypto_skcipher_type(u32 type) +{ + type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + type |= CRYPTO_ALG_TYPE_BLKCIPHER; + return type; +} + +static inline u32 crypto_skcipher_mask(u32 mask) +{ + mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK; + return mask; +} + +struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name, + u32 type, u32 mask); + +static inline struct crypto_tfm *crypto_ablkcipher_tfm( + struct crypto_ablkcipher *tfm) +{ + return &tfm->base; +} + +static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm) +{ + crypto_free_tfm(crypto_ablkcipher_tfm(tfm)); +} + +static inline int crypto_has_ablkcipher(const char *alg_name, u32 type, + u32 mask) +{ + return crypto_has_alg(alg_name, crypto_skcipher_type(type), + crypto_skcipher_mask(mask)); +} + +static inline struct ablkcipher_tfm *crypto_ablkcipher_crt( + struct crypto_ablkcipher *tfm) +{ + return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher; +} + +static inline unsigned int crypto_ablkcipher_ivsize( + struct crypto_ablkcipher *tfm) +{ + return crypto_ablkcipher_crt(tfm)->ivsize; +} + +static inline unsigned int crypto_ablkcipher_blocksize( + struct crypto_ablkcipher *tfm) +{ + return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm)); +} + +static inline unsigned int crypto_ablkcipher_alignmask( + struct crypto_ablkcipher *tfm) +{ + return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm)); +} + +static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm) +{ + return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm)); +} + +static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm, + u32 flags) +{ + crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags); +} + +static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm, + u32 flags) +{ + crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags); +} + +static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm, + const u8 *key, unsigned int keylen) +{ + struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm); + + return crt->setkey(crt->base, key, keylen); +} + +static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm( + struct ablkcipher_request *req) +{ + return __crypto_ablkcipher_cast(req->base.tfm); +} + +static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req) +{ + struct ablkcipher_tfm *crt = + crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req)); + return crt->encrypt(req); +} + +static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req) +{ + struct ablkcipher_tfm *crt = + crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req)); + return crt->decrypt(req); +} + +static inline unsigned int crypto_ablkcipher_reqsize( + struct crypto_ablkcipher *tfm) +{ + return crypto_ablkcipher_crt(tfm)->reqsize; +} + +static inline void ablkcipher_request_set_tfm( + struct ablkcipher_request *req, struct crypto_ablkcipher *tfm) +{ + req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base); +} + +static inline struct ablkcipher_request *ablkcipher_request_cast( + struct crypto_async_request *req) +{ + return container_of(req, struct ablkcipher_request, base); +} + +static inline struct ablkcipher_request *ablkcipher_request_alloc( + struct crypto_ablkcipher *tfm, gfp_t gfp) +{ + struct ablkcipher_request *req; + + req = kmalloc(sizeof(struct ablkcipher_request) + + crypto_ablkcipher_reqsize(tfm), gfp); + + if (likely(req)) + ablkcipher_request_set_tfm(req, tfm); + + return req; +} + +static inline void ablkcipher_request_free(struct ablkcipher_request *req) +{ + 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_aead *__crypto_aead_cast(struct crypto_tfm *tfm) +{ + return (struct crypto_aead *)tfm; +} + +struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask); + +static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm) +{ + return &tfm->base; +} + +static inline void crypto_free_aead(struct crypto_aead *tfm) +{ + crypto_free_tfm(crypto_aead_tfm(tfm)); +} + +static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm) +{ + return &crypto_aead_tfm(tfm)->crt_aead; +} + +static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm) +{ + return crypto_aead_crt(tfm)->ivsize; +} + +static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm) +{ + return crypto_aead_crt(tfm)->authsize; +} + +static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm) +{ + return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm)); +} + +static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm) +{ + return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm)); +} + +static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm) +{ + return crypto_tfm_get_flags(crypto_aead_tfm(tfm)); +} + +static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags) +{ + crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags); +} + +static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags) +{ + crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags); +} + +static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen) +{ + struct aead_tfm *crt = crypto_aead_crt(tfm); + + return crt->setkey(crt->base, key, keylen); +} + +int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize); + +static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req) +{ + return __crypto_aead_cast(req->base.tfm); +} + +static inline int crypto_aead_encrypt(struct aead_request *req) +{ + return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req); +} + +static inline int crypto_aead_decrypt(struct aead_request *req) +{ + return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req); +} + +static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm) +{ + return crypto_aead_crt(tfm)->reqsize; +} + +static inline void aead_request_set_tfm(struct aead_request *req, + struct crypto_aead *tfm) +{ + req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base); +} + +static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm, + gfp_t gfp) +{ + struct aead_request *req; + + req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp); + + if (likely(req)) + aead_request_set_tfm(req, tfm); + + return req; +} + +static inline void aead_request_free(struct aead_request *req) +{ + kfree(req); +} + +static inline void aead_request_set_callback(struct aead_request *req, + u32 flags, + crypto_completion_t complete, + void *data) +{ + req->base.complete = complete; + req->base.data = data; + req->base.flags = flags; +} + +static inline void aead_request_set_crypt(struct aead_request *req, + struct scatterlist *src, + struct scatterlist *dst, + unsigned int cryptlen, u8 *iv) +{ + req->src = src; + req->dst = dst; + req->cryptlen = cryptlen; + req->iv = iv; +} + +static inline void aead_request_set_assoc(struct aead_request *req, + struct scatterlist *assoc, + unsigned int assoclen) +{ + req->assoc = assoc; + req->assoclen = assoclen; +} + static inline struct crypto_blkcipher *__crypto_blkcipher_cast( struct crypto_tfm *tfm) { @@ -459,6 +890,15 @@ static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm) crypto_free_tfm(crypto_blkcipher_tfm(tfm)); } +static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask) +{ + type &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_BLKCIPHER; + mask |= CRYPTO_ALG_TYPE_MASK; + + return crypto_has_alg(alg_name, type, mask); +} + static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm) { return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm)); @@ -586,7 +1026,7 @@ static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name, static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm) { - return tfm; + return &tfm->base; } static inline void crypto_free_cipher(struct crypto_cipher *tfm) @@ -594,6 +1034,15 @@ 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; @@ -647,139 +1096,180 @@ static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, dst, src); } -static inline void crypto_digest_init(struct crypto_tfm *tfm) +static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_init(tfm); + return (struct crypto_hash *)tfm; } -static inline void crypto_digest_update(struct crypto_tfm *tfm, - struct scatterlist *sg, - unsigned int nsg) +static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_update(tfm, sg, nsg); + BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) & + CRYPTO_ALG_TYPE_HASH_MASK); + return __crypto_hash_cast(tfm); } -static inline void crypto_digest_final(struct crypto_tfm *tfm, u8 *out) +static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name, + u32 type, u32 mask) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_final(tfm, out); + type &= ~CRYPTO_ALG_TYPE_MASK; + mask &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_HASH; + mask |= CRYPTO_ALG_TYPE_HASH_MASK; + + return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask)); } -static inline void crypto_digest_digest(struct crypto_tfm *tfm, - struct scatterlist *sg, - unsigned int nsg, u8 *out) +static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_digest(tfm, sg, nsg, out); + return &tfm->base; } -static inline int crypto_digest_setkey(struct crypto_tfm *tfm, - const u8 *key, unsigned int keylen) +static inline void crypto_free_hash(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - return tfm->crt_digest.dit_setkey(tfm, key, keylen); + crypto_free_tfm(crypto_hash_tfm(tfm)); } -static int crypto_cipher_encrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) __deprecated; -static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) +static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes); -} - -static int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) __deprecated; -static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) + type &= ~CRYPTO_ALG_TYPE_MASK; + mask &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_HASH; + mask |= CRYPTO_ALG_TYPE_HASH_MASK; + + return crypto_has_alg(alg_name, type, mask); +} + +static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv); -} - -static int crypto_cipher_decrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) __deprecated; -static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) + return &crypto_hash_tfm(tfm)->crt_hash; +} + +static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes); + return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm)); } -static int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) __deprecated; -static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) +static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv); + return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm)); } -static void crypto_cipher_set_iv(struct crypto_tfm *tfm, - const u8 *src, unsigned int len) __deprecated; -static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm, - const u8 *src, unsigned int len) +static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - memcpy(tfm->crt_cipher.cit_iv, src, len); + return crypto_hash_crt(tfm)->digestsize; } -static void crypto_cipher_get_iv(struct crypto_tfm *tfm, - u8 *dst, unsigned int len) __deprecated; -static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm, - u8 *dst, unsigned int len) +static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - memcpy(dst, tfm->crt_cipher.cit_iv, len); + 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_comp_compress(struct crypto_tfm *tfm, +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) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_COMPRESS); - return tfm->crt_compress.cot_compress(tfm, src, slen, dst, dlen); + return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm), + src, slen, dst, dlen); } -static inline int crypto_comp_decompress(struct crypto_tfm *tfm, +static inline int crypto_comp_decompress(struct crypto_comp *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen) { - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_COMPRESS); - return tfm->crt_compress.cot_decompress(tfm, src, slen, dst, dlen); + return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm), + src, slen, dst, dlen); } -/* - * HMAC support. - */ -#ifdef CONFIG_CRYPTO_HMAC -void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen); -void crypto_hmac_update(struct crypto_tfm *tfm, - struct scatterlist *sg, unsigned int nsg); -void crypto_hmac_final(struct crypto_tfm *tfm, u8 *key, - unsigned int *keylen, u8 *out); -void crypto_hmac(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen, - struct scatterlist *sg, unsigned int nsg, u8 *out); -#endif /* CONFIG_CRYPTO_HMAC */ - #endif /* _LINUX_CRYPTO_H */