1 /* 2 * Copyright (c) 2022-2025 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 STORAGE_DAEMON_CRYPTO_FSCRYPT_KEY_V1_EXT_H 17 #define STORAGE_DAEMON_CRYPTO_FSCRYPT_KEY_V1_EXT_H 18 19 #include <string> 20 21 namespace OHOS { 22 namespace StorageDaemon { 23 class FscryptKeyV1Ext { 24 public: 25 FscryptKeyV1Ext() = default; 26 ~FscryptKeyV1Ext() = default; SetDir(const std::string & dir)27 void SetDir(const std::string &dir) 28 { 29 dir_ = dir; 30 userId_ = GetUserIdFromDir(); 31 type_ = GetTypeFromDir(); 32 } 33 int32_t ActiveKeyExt(uint32_t flag, uint8_t *iv, uint32_t size, uint32_t &elType); 34 int32_t ActiveDoubleKeyExt(uint32_t flag, uint8_t *iv, uint32_t size, uint32_t &elType); 35 int32_t InactiveKeyExt(uint32_t flag); 36 int32_t LockUserScreenExt(uint32_t flag, uint32_t &elType); 37 int32_t UnlockUserScreenExt(uint32_t flag, uint8_t *iv, uint32_t size); 38 int32_t AddClassE(bool &isNeedEncryptClassE, bool &isSupport, uint32_t status); 39 int32_t DeleteClassEPinCode(uint32_t userId); 40 int32_t ChangePinCodeClassE(uint32_t userId, bool &isFbeSupport); 41 int32_t ReadClassE(uint32_t status, std::unique_ptr<uint8_t[]> &classEBuffer, uint32_t length, bool &isFbeSupport); 42 int32_t WriteClassE(uint32_t status, uint8_t *classEBuffer, uint32_t length); 43 int32_t GenerateAppkey(uint32_t userId, uint32_t appUid, std::unique_ptr<uint8_t[]> &keyId, uint32_t size); 44 int32_t LockUeceExt(bool &isFbeSupport); 45 46 private: 47 uint32_t GetUserIdFromDir(); 48 uint32_t GetTypeFromDir(); 49 uint32_t GetMappedUserId(uint32_t userId, uint32_t type); 50 uint32_t GetMappedDeUserId(uint32_t userId); 51 52 std::string dir_; 53 uint32_t userId_ = 0; 54 uint32_t type_ = 0; 55 }; 56 } // namespace StorageDaemon 57 } // namespace OHOS 58 59 #endif // STORAGE_DAEMON_CRYPTO_FSCRYPT_KEY_V1_EXT_H