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Commit 2b2215af authored by Mateusz Kulikowski's avatar Mateusz Kulikowski Committed by Greg Kroah-Hartman
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staging: rtl8192e: Remove unused rtl_crypto.h 



This header is not used - remove it to make driver code smaller.

Signed-off-by: default avatarMateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7c3d2579

drivers/staging/rtl8192e/rtl8192e/rtl_crypto.h

deleted100644 → 0
+0 −382
Original line number Diff line number Diff line 
/*

 * 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 M鰈ler.

 *

 * 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 <linux/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);

};



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);

}



#endif	/* _LINUX_CRYPTO_H */