LXR linux/drivers/crypto/qce/aead.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2021, Linaro Limited. All rights reserved.
   4 */
   5
   6#ifndef _AEAD_H_
   7#define _AEAD_H_
   8
   9#include "common.h"
  10#include "core.h"
  11
  12#define QCE_MAX_KEY_SIZE                64
  13#define QCE_CCM4309_SALT_SIZE           3
  14
  15struct qce_aead_ctx {
  16        u8 enc_key[QCE_MAX_KEY_SIZE];
  17        u8 auth_key[QCE_MAX_KEY_SIZE];
  18        u8 ccm4309_salt[QCE_CCM4309_SALT_SIZE];
  19        unsigned int enc_keylen;
  20        unsigned int auth_keylen;
  21        unsigned int authsize;
  22        bool need_fallback;
  23        struct crypto_aead *fallback;
  24};
  25
  26struct qce_aead_reqctx {
  27        unsigned long flags;
  28        u8 *iv;
  29        unsigned int ivsize;
  30        int src_nents;
  31        int dst_nents;
  32        struct scatterlist result_sg;
  33        struct scatterlist adata_sg;
  34        struct sg_table dst_tbl;
  35        struct sg_table src_tbl;
  36        struct scatterlist *dst_sg;
  37        struct scatterlist *src_sg;
  38        unsigned int cryptlen;
  39        unsigned int assoclen;
  40        unsigned char *adata;
  41        u8 ccm_nonce[QCE_MAX_NONCE];
  42        u8 ccmresult_buf[QCE_BAM_BURST_SIZE];
  43        u8 ccm_rfc4309_iv[QCE_MAX_IV_SIZE];
  44        struct aead_request fallback_req;
  45};
  46
  47static inline struct qce_alg_template *to_aead_tmpl(struct crypto_aead *tfm)
  48{
  49        struct aead_alg *alg = crypto_aead_alg(tfm);
  50
  51        return container_of(alg, struct qce_alg_template, alg.aead);
  52}
  53
  54extern const struct qce_algo_ops aead_ops;
  55
  56#endif /* _AEAD_H_ */
  57