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

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/*

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 * Copyright (c) 2021, Linaro Limited. All rights reserved.

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 */

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#ifndef _AEAD_H_

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#define _AEAD_H_

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#include "common.h"

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#include "core.h"

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#define QCE_MAX_KEY_SIZE		64

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#define QCE_CCM4309_SALT_SIZE		3

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struct qce_aead_ctx {

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	u8 enc_key[QCE_MAX_KEY_SIZE];

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	u8 auth_key[QCE_MAX_KEY_SIZE];

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	u8 ccm4309_salt[QCE_CCM4309_SALT_SIZE];

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	unsigned int enc_keylen;

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	unsigned int auth_keylen;

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	unsigned int authsize;

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	bool need_fallback;

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	struct crypto_aead *fallback;

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};

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struct qce_aead_reqctx {

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	unsigned long flags;

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	u8 *iv;

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	unsigned int ivsize;

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	int src_nents;

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	int dst_nents;

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	struct scatterlist result_sg;

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	struct scatterlist adata_sg;

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	struct sg_table dst_tbl;

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	struct sg_table src_tbl;

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	struct scatterlist *dst_sg;

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	struct scatterlist *src_sg;

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	unsigned int cryptlen;

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	unsigned int assoclen;

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	unsigned char *adata;

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	u8 ccm_nonce[QCE_MAX_NONCE];

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	u8 ccmresult_buf[QCE_BAM_BURST_SIZE];

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	u8 ccm_rfc4309_iv[QCE_MAX_IV_SIZE];

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	struct aead_request fallback_req;

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};

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static inline struct qce_alg_template *to_aead_tmpl(struct crypto_aead *tfm)

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{

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	struct aead_alg *alg = crypto_aead_alg(tfm);

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	return container_of(alg, struct qce_alg_template, alg.aead);

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}

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extern const struct qce_algo_ops aead_ops;

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#endif /* _AEAD_H_ */

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