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