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_CMACAES = 0, 14 CRYPTO_SHASH_MAX, 15 }; 16 17 enum { 18 CRYPTO_AEAD_AES_GCM = 16, 19 CRYPTO_AEAD_AES_CCM, 20 CRYPTO_AEAD_MAX, 21 }; 22 23 struct ksmbd_crypto_ctx { 24 struct list_head list; 25 26 struct shash_desc *desc[CRYPTO_SHASH_MAX]; 27 struct crypto_aead *ccmaes[CRYPTO_AEAD_MAX]; 28 }; 29 30 #define CRYPTO_CMACAES(c) ((c)->desc[CRYPTO_SHASH_CMACAES]) 31 32 #define CRYPTO_CMACAES_TFM(c) ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm) 33 34 #define CRYPTO_GCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_GCM]) 35 #define CRYPTO_CCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_CCM]) 36 37 void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx); 38 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void); 39 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void); 40 struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void); 41 void ksmbd_crypto_destroy(void); 42 int ksmbd_crypto_create(void); 43 44 #endif /* __CRYPTO_CTX_H__ */ 45