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/*
* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _COMMON_H_
#define _COMMON_H_
#include <linux/crypto.h>
#include <linux/types.h>
#include <crypto/aes.h>
#include <crypto/hash.h>
/* key size in bytes */
#define QCE_SHA_HMAC_KEY_SIZE 64
#define QCE_MAX_CIPHER_KEY_SIZE AES_KEYSIZE_256
/* IV length in bytes */
#define QCE_AES_IV_LENGTH AES_BLOCK_SIZE
/* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
#define QCE_MAX_IV_SIZE AES_BLOCK_SIZE
/* maximum nonce bytes */
#define QCE_MAX_NONCE 16
#define QCE_MAX_NONCE_WORDS (QCE_MAX_NONCE / sizeof(u32))
/* burst size alignment requirement */
#define QCE_MAX_ALIGN_SIZE 64
/* cipher algorithms */
#define QCE_ALG_DES BIT(0)
#define QCE_ALG_3DES BIT(1)
#define QCE_ALG_AES BIT(2)
/* hash and hmac algorithms */
#define QCE_HASH_SHA1 BIT(3)
#define QCE_HASH_SHA256 BIT(4)
#define QCE_HASH_SHA1_HMAC BIT(5)
#define QCE_HASH_SHA256_HMAC BIT(6)
#define QCE_HASH_AES_CMAC BIT(7)
/* cipher modes */
#define QCE_MODE_CBC BIT(8)
#define QCE_MODE_ECB BIT(9)
#define QCE_MODE_CTR BIT(10)
#define QCE_MODE_XTS BIT(11)
#define QCE_MODE_CCM BIT(12)
#define QCE_MODE_MASK GENMASK(12, 8)
/* cipher encryption/decryption operations */
#define QCE_ENCRYPT BIT(13)
#define QCE_DECRYPT BIT(14)
#define IS_DES(flags) (flags & QCE_ALG_DES)
#define IS_3DES(flags) (flags & QCE_ALG_3DES)
#define IS_AES(flags) (flags & QCE_ALG_AES)
#define IS_SHA1(flags) (flags & QCE_HASH_SHA1)
#define IS_SHA256(flags) (flags & QCE_HASH_SHA256)
#define IS_SHA1_HMAC(flags) (flags & QCE_HASH_SHA1_HMAC)
#define IS_SHA256_HMAC(flags) (flags & QCE_HASH_SHA256_HMAC)
#define IS_CMAC(flags) (flags & QCE_HASH_AES_CMAC)
#define IS_SHA(flags) (IS_SHA1(flags) || IS_SHA256(flags))
#define IS_SHA_HMAC(flags) \
(IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags))
#define IS_CBC(mode) (mode & QCE_MODE_CBC)
#define IS_ECB(mode) (mode & QCE_MODE_ECB)
#define IS_CTR(mode) (mode & QCE_MODE_CTR)
#define IS_XTS(mode) (mode & QCE_MODE_XTS)
#define IS_CCM(mode) (mode & QCE_MODE_CCM)
#define IS_ENCRYPT(dir) (dir & QCE_ENCRYPT)
#define IS_DECRYPT(dir) (dir & QCE_DECRYPT)
struct qce_alg_template {
struct list_head entry;
u32 crypto_alg_type;
unsigned long alg_flags;
const u32 *std_iv;
union {
struct crypto_alg crypto;
struct ahash_alg ahash;
} alg;
struct qce_device *qce;
};
void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
int qce_check_status(struct qce_device *qce, u32 *status);
void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
u32 offset);
#endif /* _COMMON_H_ */
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