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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2021, Linaro Limited. All rights reserved.
*/
#ifndef _AEAD_H_
#define _AEAD_H_
#include "common.h"
#include "core.h"
#define QCE_MAX_KEY_SIZE 64
#define QCE_CCM4309_SALT_SIZE 3
struct qce_aead_ctx {
u8 enc_key[QCE_MAX_KEY_SIZE];
u8 auth_key[QCE_MAX_KEY_SIZE];
u8 ccm4309_salt[QCE_CCM4309_SALT_SIZE];
unsigned int enc_keylen;
unsigned int auth_keylen;
unsigned int authsize;
bool need_fallback;
struct crypto_aead *fallback;
};
struct qce_aead_reqctx {
unsigned long flags;
u8 *iv;
unsigned int ivsize;
int src_nents;
int dst_nents;
struct scatterlist result_sg;
struct scatterlist adata_sg;
struct sg_table dst_tbl;
struct sg_table src_tbl;
struct scatterlist *dst_sg;
struct scatterlist *src_sg;
unsigned int cryptlen;
unsigned int assoclen;
unsigned char *adata;
u8 ccm_nonce[QCE_MAX_NONCE];
u8 ccmresult_buf[QCE_BAM_BURST_SIZE];
u8 ccm_rfc4309_iv[QCE_MAX_IV_SIZE];
struct aead_request fallback_req;
};
static inline struct qce_alg_template *to_aead_tmpl(struct crypto_aead *tfm)
{
struct aead_alg *alg = crypto_aead_alg(tfm);
return container_of(alg, struct qce_alg_template, alg.aead);
}
extern const struct qce_algo_ops aead_ops;
#endif /* _AEAD_H_ */
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