fs/ksmbd/crypto_ctx.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *   Copyright (C) 2019 Samsung Electronics Co., Ltd.
   4  */
   5
   6 #ifndef __CRYPTO_CTX_H__
   7 #define __CRYPTO_CTX_H__
   8
   9 #include <crypto/hash.h>
  10 #include <crypto/aead.h>
  11
  12 enum {
  13         CRYPTO_SHASH_HMACMD5    = 0,
  14         CRYPTO_SHASH_HMACSHA256,
  15         CRYPTO_SHASH_CMACAES,
  16         CRYPTO_SHASH_SHA256,
  17         CRYPTO_SHASH_SHA512,
  18         CRYPTO_SHASH_MAX,
  19 };
  20
  21 enum {
  22         CRYPTO_AEAD_AES_GCM = 16,
  23         CRYPTO_AEAD_AES_CCM,
  24         CRYPTO_AEAD_MAX,
  25 };
  26
  27 enum {
  28         CRYPTO_BLK_ECBDES       = 32,
  29         CRYPTO_BLK_MAX,
  30 };
  31
  32 struct ksmbd_crypto_ctx {
  33         struct list_head                list;
  34
  35         struct shash_desc               *desc[CRYPTO_SHASH_MAX];
  36         struct crypto_aead              *ccmaes[CRYPTO_AEAD_MAX];
  37 };
  38
  39 #define CRYPTO_HMACMD5(c)       ((c)->desc[CRYPTO_SHASH_HMACMD5])
  40 #define CRYPTO_HMACSHA256(c)    ((c)->desc[CRYPTO_SHASH_HMACSHA256])
  41 #define CRYPTO_CMACAES(c)       ((c)->desc[CRYPTO_SHASH_CMACAES])
  42 #define CRYPTO_SHA256(c)        ((c)->desc[CRYPTO_SHASH_SHA256])
  43 #define CRYPTO_SHA512(c)        ((c)->desc[CRYPTO_SHASH_SHA512])
  44
  45 #define CRYPTO_HMACMD5_TFM(c)   ((c)->desc[CRYPTO_SHASH_HMACMD5]->tfm)
  46 #define CRYPTO_HMACSHA256_TFM(c)\
  47                                 ((c)->desc[CRYPTO_SHASH_HMACSHA256]->tfm)
  48 #define CRYPTO_CMACAES_TFM(c)   ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm)
  49 #define CRYPTO_SHA256_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA256]->tfm)
  50 #define CRYPTO_SHA512_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA512]->tfm)
  51
  52 #define CRYPTO_GCM(c)           ((c)->ccmaes[CRYPTO_AEAD_AES_GCM])
  53 #define CRYPTO_CCM(c)           ((c)->ccmaes[CRYPTO_AEAD_AES_CCM])
  54
  55 void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx);
  56 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void);
  57 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void);
  58 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void);
  59 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void);
  60 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha256(void);
  61 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void);
  62 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void);
  63 void ksmbd_crypto_destroy(void);
  64 int ksmbd_crypto_create(void);
  65
  66 #endif /* __CRYPTO_CTX_H__ */