1 /*
2  * Copyright (c) 2021 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 
16 #ifndef OHOS_STORAGE_MANAGER_FILE_SYSTEM_CRYPTO_H
17 #define OHOS_STORAGE_MANAGER_FILE_SYSTEM_CRYPTO_H
18 
19 #include <unordered_map>
20 #include <singleton.h>
21 #include <nocopyable.h>
22 
23 namespace OHOS {
24 namespace StorageManager {
25 class FileSystemCrypto final : public NoCopyable {
26     DECLARE_DELAYED_SINGLETON(FileSystemCrypto);
27 public:
28     int32_t GenerateUserKeys(uint32_t userId, uint32_t flags);
29     int32_t DeleteUserKeys(uint32_t userId);
30     int32_t UpdateUserAuth(uint32_t userId, uint64_t secureUid,
31                            const std::vector<uint8_t> &token,
32                            const std::vector<uint8_t> &oldSecret,
33                            const std::vector<uint8_t> &newSecret);
34     int32_t ActiveUserKey(uint32_t userId,
35                           const std::vector<uint8_t> &token,
36                           const std::vector<uint8_t> &secret);
37     int32_t InactiveUserKey(uint32_t userId);
38     int32_t UpdateKeyContext(uint32_t userId);
39     int32_t LockUserScreen(uint32_t userId);
40     int32_t UnlockUserScreen(uint32_t userId,
41                              const std::vector<uint8_t> &token,
42                              const std::vector<uint8_t> &secret);
43     int32_t GetLockScreenStatus(uint32_t userId, bool &lockScreenStatus);
44     int32_t GenerateAppkey(uint32_t hashId, uint32_t userId, std::string &keyId);
45     int32_t DeleteAppkey(const std::string keyId);
46     int32_t GetFileEncryptStatus(uint32_t userId, bool &isEncrypted, bool needCheckDirMount = false);
47 private:
48     int32_t CheckUserIdRange(int32_t userId);
49 };
50 } // StorageManager
51 } // OHOS
52 #endif // OHOS_STORAGE_MANAGER_FILE_SYSTEM_CRYPTO_H