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

   1/*
   2 * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License version 2 and
   6 * only version 2 as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope that it will be useful,
   9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 * GNU General Public License for more details.
  12 */
  13
  14#ifndef _CIPHER_H_
  15#define _CIPHER_H_
  16
  17#include "common.h"
  18#include "core.h"
  19
  20#define QCE_MAX_KEY_SIZE        64
  21
  22struct qce_cipher_ctx {
  23        u8 enc_key[QCE_MAX_KEY_SIZE];
  24        unsigned int enc_keylen;
  25        struct crypto_skcipher *fallback;
  26};
  27
  28/**
  29 * struct qce_cipher_reqctx - holds private cipher objects per request
  30 * @flags: operation flags
  31 * @iv: pointer to the IV
  32 * @ivsize: IV size
  33 * @src_nents: source entries
  34 * @dst_nents: destination entries
  35 * @result_sg: scatterlist used for result buffer
  36 * @dst_tbl: destination sg table
  37 * @dst_sg: destination sg pointer table beginning
  38 * @src_tbl: source sg table
  39 * @src_sg: source sg pointer table beginning;
  40 * @cryptlen: crypto length
  41 */
  42struct qce_cipher_reqctx {
  43        unsigned long flags;
  44        u8 *iv;
  45        unsigned int ivsize;
  46        int src_nents;
  47        int dst_nents;
  48        struct scatterlist result_sg;
  49        struct sg_table dst_tbl;
  50        struct scatterlist *dst_sg;
  51        struct sg_table src_tbl;
  52        struct scatterlist *src_sg;
  53        unsigned int cryptlen;
  54};
  55
  56static inline struct qce_alg_template *to_cipher_tmpl(struct crypto_tfm *tfm)
  57{
  58        struct crypto_alg *alg = tfm->__crt_alg;
  59        return container_of(alg, struct qce_alg_template, alg.crypto);
  60}
  61
  62extern const struct qce_algo_ops ablkcipher_ops;
  63
  64#endif /* _CIPHER_H_ */
  65