drivers/crypto/qce/cipher.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #ifndef _CIPHER_H_
   7 #define _CIPHER_H_
   8
   9 #include "common.h"
  10 #include "core.h"
  11
  12 #define QCE_MAX_KEY_SIZE        64
  13
  14 struct qce_cipher_ctx {
  15         u8 enc_key[QCE_MAX_KEY_SIZE];
  16         unsigned int enc_keylen;
  17         struct crypto_sync_skcipher *fallback;
  18 };
  19
  20 /**
  21  * struct qce_cipher_reqctx - holds private cipher objects per request
  22  * @flags: operation flags
  23  * @iv: pointer to the IV
  24  * @ivsize: IV size
  25  * @src_nents: source entries
  26  * @dst_nents: destination entries
  27  * @result_sg: scatterlist used for result buffer
  28  * @dst_tbl: destination sg table
  29  * @dst_sg: destination sg pointer table beginning
  30  * @src_tbl: source sg table
  31  * @src_sg: source sg pointer table beginning;
  32  * @cryptlen: crypto length
  33  */
  34 struct qce_cipher_reqctx {
  35         unsigned long flags;
  36         u8 *iv;
  37         unsigned int ivsize;
  38         int src_nents;
  39         int dst_nents;
  40         struct scatterlist result_sg;
  41         struct sg_table dst_tbl;
  42         struct scatterlist *dst_sg;
  43         struct sg_table src_tbl;
  44         struct scatterlist *src_sg;
  45         unsigned int cryptlen;
  46 };
  47
  48 static inline struct qce_alg_template *to_cipher_tmpl(struct crypto_skcipher *tfm)
  49 {
  50         struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
  51         return container_of(alg, struct qce_alg_template, alg.skcipher);
  52 }
  53
  54 extern const struct qce_algo_ops skcipher_ops;
  55
  56 #endif /* _CIPHER_H_ */