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_MD4,
  19         CRYPTO_SHASH_MD5,
  20         CRYPTO_SHASH_MAX,
  21 };
  22
  23 enum {
  24         CRYPTO_AEAD_AES_GCM = 16,
  25         CRYPTO_AEAD_AES_CCM,
  26         CRYPTO_AEAD_MAX,
  27 };
  28
  29 enum {
  30         CRYPTO_BLK_ECBDES       = 32,
  31         CRYPTO_BLK_MAX,
  32 };
  33
  34 struct ksmbd_crypto_ctx {
  35         struct list_head                list;
  36
  37         struct shash_desc               *desc[CRYPTO_SHASH_MAX];
  38         struct crypto_aead              *ccmaes[CRYPTO_AEAD_MAX];
  39 };
  40
  41 #define CRYPTO_HMACMD5(c)       ((c)->desc[CRYPTO_SHASH_HMACMD5])
  42 #define CRYPTO_HMACSHA256(c)    ((c)->desc[CRYPTO_SHASH_HMACSHA256])
  43 #define CRYPTO_CMACAES(c)       ((c)->desc[CRYPTO_SHASH_CMACAES])
  44 #define CRYPTO_SHA256(c)        ((c)->desc[CRYPTO_SHASH_SHA256])
  45 #define CRYPTO_SHA512(c)        ((c)->desc[CRYPTO_SHASH_SHA512])
  46 #define CRYPTO_MD4(c)           ((c)->desc[CRYPTO_SHASH_MD4])
  47 #define CRYPTO_MD5(c)           ((c)->desc[CRYPTO_SHASH_MD5])
  48
  49 #define CRYPTO_HMACMD5_TFM(c)   ((c)->desc[CRYPTO_SHASH_HMACMD5]->tfm)
  50 #define CRYPTO_HMACSHA256_TFM(c)\
  51                                 ((c)->desc[CRYPTO_SHASH_HMACSHA256]->tfm)
  52 #define CRYPTO_CMACAES_TFM(c)   ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm)
  53 #define CRYPTO_SHA256_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA256]->tfm)
  54 #define CRYPTO_SHA512_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA512]->tfm)
  55 #define CRYPTO_MD4_TFM(c)       ((c)->desc[CRYPTO_SHASH_MD4]->tfm)
  56 #define CRYPTO_MD5_TFM(c)       ((c)->desc[CRYPTO_SHASH_MD5]->tfm)
  57
  58 #define CRYPTO_GCM(c)           ((c)->ccmaes[CRYPTO_AEAD_AES_GCM])
  59 #define CRYPTO_CCM(c)           ((c)->ccmaes[CRYPTO_AEAD_AES_CCM])
  60
  61 void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx);
  62 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void);
  63 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void);
  64 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void);
  65 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void);
  66 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha256(void);
  67 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_md4(void);
  68 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_md5(void);
  69 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void);
  70 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void);
  71 void ksmbd_crypto_destroy(void);
  72 int ksmbd_crypto_create(void);
  73
  74 #endif /* __CRYPTO_CTX_H__ */