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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/crypto/qce/common.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.

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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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#include <crypto/internal/skcipher.h>

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#include <crypto/internal/aead.h>

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/* xts du size */

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#define QCE_SECTOR_SIZE			512

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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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#define QCE_MODE_CCM_RFC4309		BIT(13)

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/* cipher encryption/decryption operations */

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#define QCE_ENCRYPT			BIT(30)

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#define QCE_DECRYPT			BIT(31)

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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_CCM_RFC4309(mode)		((mode) & QCE_MODE_CCM_RFC4309)

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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 skcipher_alg skcipher;

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		struct ahash_alg ahash;

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		struct aead_alg aead;

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	} alg;

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	struct qce_device *qce;

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	const u8 *hash_zero;

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	const u32 digest_size;

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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);

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#endif /* _COMMON_H_ */

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