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__ */
67
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