1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef STORAGE_DAEMON_CRYPTO_FSCRYPT_UAPI_H
16 #define STORAGE_DAEMON_CRYPTO_FSCRYPT_UAPI_H
17 
18 #include <linux/fs.h>
19 
20 // adapt to old kernel uapi defines
21 #define FSCRYPT_KEY_DESCRIPTOR_SIZE FS_KEY_DESCRIPTOR_SIZE
22 #define FSCRYPT_POLICY_FLAGS_PAD_4 FS_POLICY_FLAGS_PAD_4
23 #define FSCRYPT_POLICY_FLAGS_PAD_8 FS_POLICY_FLAGS_PAD_8
24 #define FSCRYPT_POLICY_FLAGS_PAD_16 FS_POLICY_FLAGS_PAD_16
25 #define FSCRYPT_POLICY_FLAGS_PAD_32 FS_POLICY_FLAGS_PAD_32
26 #define FSCRYPT_POLICY_FLAGS_PAD_MASK FS_POLICY_FLAGS_PAD_MASK
27 #define FSCRYPT_POLICY_FLAG_DIRECT_KEY FS_POLICY_FLAG_DIRECT_KEY
28 
29 #define FSCRYPT_MODE_AES_256_XTS FS_ENCRYPTION_MODE_AES_256_XTS
30 #define FSCRYPT_MODE_AES_256_CTS FS_ENCRYPTION_MODE_AES_256_CTS
31 #define FSCRYPT_MODE_AES_128_CBC FS_ENCRYPTION_MODE_AES_128_CBC
32 #define FSCRYPT_MODE_AES_128_CTS FS_ENCRYPTION_MODE_AES_128_CTS
33 #define FSCRYPT_MODE_ADIANTUM FS_ENCRYPTION_MODE_ADIANTUM
34 
35 #define FSCRYPT_KEY_DESC_PREFIX FS_KEY_DESC_PREFIX
36 #define FSCRYPT_KEY_DESC_PREFIX_SIZE FS_KEY_DESC_PREFIX_SIZE
37 #define FSCRYPT_MAX_KEY_SIZE FS_MAX_KEY_SIZE
38 
39 #define FSCRYPT_POLICY_V1 0
40 #define fscrypt_policy_v1 fscrypt_policy
41 
42 #define FSCRYPT_POLICY_V2 2
43 
44 #endif // STORAGE_DAEMON_CRYPTO_FSCRYPT_UAPI_H