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
12enum {
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
21enum {
22	CRYPTO_AEAD_AES_GCM = 16,
23	CRYPTO_AEAD_AES_CCM,
24	CRYPTO_AEAD_MAX,
25};
26
27enum {
28	CRYPTO_BLK_ECBDES	= 32,
29	CRYPTO_BLK_MAX,
30};
31
32struct 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
55void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx);
56struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void);
57struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void);
58struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void);
59struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void);
60struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha256(void);
61struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void);
62struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void);
63void ksmbd_crypto_destroy(void);
64int ksmbd_crypto_create(void);
65
66#endif /* __CRYPTO_CTX_H__ */