diff options
Diffstat (limited to 'drivers/staging/rtl8192su/ieee80211/rtl_crypto.h')
-rw-r--r-- | drivers/staging/rtl8192su/ieee80211/rtl_crypto.h | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/drivers/staging/rtl8192su/ieee80211/rtl_crypto.h b/drivers/staging/rtl8192su/ieee80211/rtl_crypto.h deleted file mode 100644 index ccf6ae7..0000000 --- a/drivers/staging/rtl8192su/ieee80211/rtl_crypto.h +++ /dev/null @@ -1,399 +0,0 @@ -/* - * Scatterlist Cryptographic API. - * - * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> - * Copyright (c) 2002 David S. Miller (davem@redhat.com) - * - * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no> - * and Nettle, by Niels Mé°ˆler. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - */ -#ifndef _LINUX_CRYPTO_H -#define _LINUX_CRYPTO_H - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/list.h> -#include <linux/string.h> -#include <asm/page.h> -#include <asm/errno.h> - -#define crypto_register_alg crypto_register_alg_rsl -#define crypto_unregister_alg crypto_unregister_alg_rsl -#define crypto_alloc_tfm crypto_alloc_tfm_rsl -#define crypto_free_tfm crypto_free_tfm_rsl -#define crypto_alg_available crypto_alg_available_rsl - -/* - * Algorithm masks and types. - */ -#define CRYPTO_ALG_TYPE_MASK 0x000000ff -#define CRYPTO_ALG_TYPE_CIPHER 0x00000001 -#define CRYPTO_ALG_TYPE_DIGEST 0x00000002 -#define CRYPTO_ALG_TYPE_COMPRESS 0x00000004 - -/* - * 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_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_UNSPEC 0 -#define CRYPTO_MAX_ALG_NAME 64 - -struct scatterlist; - -/* - * Algorithms: modular crypto algorithm implementations, managed - * via crypto_register_alg() and crypto_unregister_alg(). - */ -struct cipher_alg { - unsigned int cia_min_keysize; - unsigned int cia_max_keysize; - int (*cia_setkey)(void *ctx, const u8 *key, - unsigned int keylen, u32 *flags); - void (*cia_encrypt)(void *ctx, u8 *dst, const u8 *src); - void (*cia_decrypt)(void *ctx, u8 *dst, const u8 *src); -}; - -struct digest_alg { - unsigned int dia_digestsize; - void (*dia_init)(void *ctx); - void (*dia_update)(void *ctx, const u8 *data, unsigned int len); - void (*dia_final)(void *ctx, u8 *out); - int (*dia_setkey)(void *ctx, const u8 *key, - unsigned int keylen, u32 *flags); -}; - -struct compress_alg { - int (*coa_init)(void *ctx); - void (*coa_exit)(void *ctx); - int (*coa_compress)(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen); - int (*coa_decompress)(void *ctx, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen); -}; - -#define cra_cipher cra_u.cipher -#define cra_digest cra_u.digest -#define cra_compress cra_u.compress - -struct crypto_alg { - struct list_head cra_list; - u32 cra_flags; - unsigned int cra_blocksize; - unsigned int cra_ctxsize; - const char cra_name[CRYPTO_MAX_ALG_NAME]; - - union { - struct cipher_alg cipher; - struct digest_alg digest; - struct compress_alg compress; - } cra_u; - - 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. - */ -int crypto_alg_available(const char *name, u32 flags); - -/* - * Transforms: user-instantiated objects which encapsulate algorithms - * and core processing logic. Managed via crypto_alloc_tfm() and - * crypto_free_tfm(), as well as the various helpers below. - */ -struct crypto_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); -}; - -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 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_cipher crt_u.cipher -#define crt_digest crt_u.digest -#define crt_compress crt_u.compress - -struct crypto_tfm { - - u32 crt_flags; - - union { - struct cipher_tfm cipher; - struct digest_tfm digest; - struct compress_tfm compress; - } crt_u; - - struct crypto_alg *__crt_alg; -}; - -/* - * Transform user interface. - */ - -/* - * crypto_alloc_tfm() will first attempt to locate an already loaded algorithm. - * If that fails and the kernel supports dynamically loadable modules, it - * will then attempt to load a module of the same name or alias. A refcount - * is grabbed on the algorithm which is then associated with the new transform. - * - * crypto_free_tfm() frees up the transform and any associated resources, - * then drops the refcount on the associated algorithm. - */ -struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags); -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_modname(struct crypto_tfm *tfm) -{ - struct crypto_alg *alg = tfm->__crt_alg; - - if (alg->cra_module) - return alg->cra_module->name; - else - return NULL; -} - -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_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 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 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; -} - -/* - * API wrappers. - */ -static inline void crypto_digest_init(struct crypto_tfm *tfm) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_init(tfm); -} - -static inline void crypto_digest_update(struct crypto_tfm *tfm, - struct scatterlist *sg, - unsigned int nsg) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_update(tfm, sg, nsg); -} - -static inline void crypto_digest_final(struct crypto_tfm *tfm, u8 *out) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_final(tfm, out); -} - -static inline void crypto_digest_digest(struct crypto_tfm *tfm, - struct scatterlist *sg, - unsigned int nsg, u8 *out) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - tfm->crt_digest.dit_digest(tfm, sg, nsg, out); -} - -static inline int crypto_digest_setkey(struct crypto_tfm *tfm, - const u8 *key, unsigned int keylen) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - if (tfm->crt_digest.dit_setkey == NULL) - return -ENOSYS; - return tfm->crt_digest.dit_setkey(tfm, key, keylen); -} - -static inline int crypto_cipher_setkey(struct crypto_tfm *tfm, - const u8 *key, unsigned int keylen) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_setkey(tfm, key, keylen); -} - -static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes); -} - -static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB); - return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv); -} - -static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes); -} - -static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int nbytes, u8 *iv) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB); - return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv); -} - -static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm, - const u8 *src, unsigned int len) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - memcpy(tfm->crt_cipher.cit_iv, src, len); -} - -static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm, - u8 *dst, unsigned int len) -{ - BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); - memcpy(dst, tfm->crt_cipher.cit_iv, len); -} - -static inline int crypto_comp_compress(struct crypto_tfm *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); -} - -static inline int crypto_comp_decompress(struct crypto_tfm *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); -} - -/* - * 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 */ - |