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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/crypto/inside-secure/eip93/eip93-hash.h
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/* SPDX-License-Identifier: GPL-2.0

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 *

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 * Copyright (C) 2019 - 2021

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 *

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 * Richard van Schagen <[email protected]>

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 * Christian Marangi <[email protected]

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 */

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#ifndef _EIP93_HASH_H_

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#define _EIP93_HASH_H_

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#include <crypto/sha2.h>

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#include "eip93-main.h"

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#include "eip93-regs.h"

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struct eip93_hash_ctx {

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	struct eip93_device	*eip93;

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	u32			flags;

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	u8			ipad[SHA256_BLOCK_SIZE] __aligned(sizeof(u32));

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	u8			opad[SHA256_DIGEST_SIZE] __aligned(sizeof(u32));

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};

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struct eip93_hash_reqctx {

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	/* Placement is important for DMA align */

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	struct {

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		struct sa_record	sa_record;

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		struct sa_record	sa_record_hmac;

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		struct sa_state		sa_state;

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	} __aligned(CRYPTO_DMA_ALIGN);

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	dma_addr_t		sa_record_base;

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	dma_addr_t		sa_record_hmac_base;

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	dma_addr_t		sa_state_base;

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	/* Don't enable HASH_FINALIZE when last block is sent */

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	bool			partial_hash;

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	/* Set to signal interrupt is for final packet */

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	bool			finalize;

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	/*

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	 * EIP93 requires data to be accumulated in block of 64 bytes

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	 * for intermediate hash calculation.

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	 */

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	u64			len;

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	u32			data_used;

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	u8			data[SHA256_BLOCK_SIZE] __aligned(sizeof(u32));

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	dma_addr_t		data_dma;

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	struct list_head	blocks;

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};

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struct mkt_hash_block {

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	struct list_head	list;

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	u8			data[SHA256_BLOCK_SIZE] __aligned(sizeof(u32));

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	dma_addr_t		data_dma;

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};

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struct eip93_hash_export_state {

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	u64			len;

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	u32			data_used;

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	u32			state_len[2];

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	u8			state_hash[SHA256_DIGEST_SIZE] __aligned(sizeof(u32));

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	u8			data[SHA256_BLOCK_SIZE] __aligned(sizeof(u32));

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};

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void eip93_hash_handle_result(struct crypto_async_request *async, int err);

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extern struct eip93_alg_template eip93_alg_md5;

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extern struct eip93_alg_template eip93_alg_sha1;

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extern struct eip93_alg_template eip93_alg_sha224;

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extern struct eip93_alg_template eip93_alg_sha256;

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extern struct eip93_alg_template eip93_alg_hmac_md5;

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extern struct eip93_alg_template eip93_alg_hmac_sha1;

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extern struct eip93_alg_template eip93_alg_hmac_sha224;

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extern struct eip93_alg_template eip93_alg_hmac_sha256;

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#endif /* _EIP93_HASH_H_ */

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