fs/ksmbd/crypto_ctx.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  *   Copyright (C) 2019 Samsung Electronics Co., Ltd.
0004  */
0005
0006 #ifndef __CRYPTO_CTX_H__
0007 #define __CRYPTO_CTX_H__
0008
0009 #include <crypto/hash.h>
0010 #include <crypto/aead.h>
0011
0012 enum {
0013     CRYPTO_SHASH_HMACMD5    = 0,
0014     CRYPTO_SHASH_HMACSHA256,
0015     CRYPTO_SHASH_CMACAES,
0016     CRYPTO_SHASH_SHA256,
0017     CRYPTO_SHASH_SHA512,
0018     CRYPTO_SHASH_MAX,
0019 };
0020
0021 enum {
0022     CRYPTO_AEAD_AES_GCM = 16,
0023     CRYPTO_AEAD_AES_CCM,
0024     CRYPTO_AEAD_MAX,
0025 };
0026
0027 enum {
0028     CRYPTO_BLK_ECBDES   = 32,
0029     CRYPTO_BLK_MAX,
0030 };
0031
0032 struct ksmbd_crypto_ctx {
0033     struct list_head        list;
0034
0035     struct shash_desc       *desc[CRYPTO_SHASH_MAX];
0036     struct crypto_aead      *ccmaes[CRYPTO_AEAD_MAX];
0037 };
0038
0039 #define CRYPTO_HMACMD5(c)   ((c)->desc[CRYPTO_SHASH_HMACMD5])
0040 #define CRYPTO_HMACSHA256(c)    ((c)->desc[CRYPTO_SHASH_HMACSHA256])
0041 #define CRYPTO_CMACAES(c)   ((c)->desc[CRYPTO_SHASH_CMACAES])
0042 #define CRYPTO_SHA256(c)    ((c)->desc[CRYPTO_SHASH_SHA256])
0043 #define CRYPTO_SHA512(c)    ((c)->desc[CRYPTO_SHASH_SHA512])
0044
0045 #define CRYPTO_HMACMD5_TFM(c)   ((c)->desc[CRYPTO_SHASH_HMACMD5]->tfm)
0046 #define CRYPTO_HMACSHA256_TFM(c)\
0047                 ((c)->desc[CRYPTO_SHASH_HMACSHA256]->tfm)
0048 #define CRYPTO_CMACAES_TFM(c)   ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm)
0049 #define CRYPTO_SHA256_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA256]->tfm)
0050 #define CRYPTO_SHA512_TFM(c)    ((c)->desc[CRYPTO_SHASH_SHA512]->tfm)
0051
0052 #define CRYPTO_GCM(c)       ((c)->ccmaes[CRYPTO_AEAD_AES_GCM])
0053 #define CRYPTO_CCM(c)       ((c)->ccmaes[CRYPTO_AEAD_AES_CCM])
0054
0055 void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx);
0056 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void);
0057 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void);
0058 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void);
0059 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void);
0060 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha256(void);
0061 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void);
0062 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void);
0063 void ksmbd_crypto_destroy(void);
0064 int ksmbd_crypto_create(void);
0065
0066 #endif /* __CRYPTO_CTX_H__ */