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_SHA512, 17 CRYPTO_SHASH_MAX, 18 }; 19 20 enum { 21 CRYPTO_AEAD_AES_GCM = 16, 22 CRYPTO_AEAD_AES_CCM, 23 CRYPTO_AEAD_MAX, 24 }; 25 26 enum { 27 CRYPTO_BLK_ECBDES = 32, 28 CRYPTO_BLK_MAX, 29 }; 30 31 struct ksmbd_crypto_ctx { 32 struct list_head list; 33 34 struct shash_desc *desc[CRYPTO_SHASH_MAX]; 35 struct crypto_aead *ccmaes[CRYPTO_AEAD_MAX]; 36 }; 37 38 #define CRYPTO_HMACMD5(c) ((c)->desc[CRYPTO_SHASH_HMACMD5]) 39 #define CRYPTO_HMACSHA256(c) ((c)->desc[CRYPTO_SHASH_HMACSHA256]) 40 #define CRYPTO_CMACAES(c) ((c)->desc[CRYPTO_SHASH_CMACAES]) 41 #define CRYPTO_SHA512(c) ((c)->desc[CRYPTO_SHASH_SHA512]) 42 43 #define CRYPTO_HMACMD5_TFM(c) ((c)->desc[CRYPTO_SHASH_HMACMD5]->tfm) 44 #define CRYPTO_HMACSHA256_TFM(c)\ 45 ((c)->desc[CRYPTO_SHASH_HMACSHA256]->tfm) 46 #define CRYPTO_CMACAES_TFM(c) ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm) 47 #define CRYPTO_SHA512_TFM(c) ((c)->desc[CRYPTO_SHASH_SHA512]->tfm) 48 49 #define CRYPTO_GCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_GCM]) 50 #define CRYPTO_CCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_CCM]) 51 52 void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx); 53 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void); 54 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void); 55 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void); 56 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void); 57 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void); 58 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void); 59 void ksmbd_crypto_destroy(void); 60 int ksmbd_crypto_create(void); 61 62 #endif /* __CRYPTO_CTX_H__ */ 63