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 16 #ifndef STORAGE_DAEMON_CRYPTO_FBEX_X 17 #define STORAGE_DAEMON_CRYPTO_FBEX_X 18 19 #include <cstdint> 20 21 namespace OHOS { 22 namespace StorageDaemon { 23 constexpr uint32_t USERID_GLOBAL_EL1 = 0; 24 constexpr uint32_t TYPE_EL1 = 0; 25 constexpr uint32_t TYPE_EL2 = 1; 26 constexpr uint32_t TYPE_EL3 = 2; 27 constexpr uint32_t TYPE_EL4 = 3; 28 constexpr uint32_t TYPE_GLOBAL_EL1 = 4; 29 30 constexpr uint32_t FBEX_IV_SIZE = 64; 31 32 class FBEX { 33 public: 34 static bool IsFBEXSupported(); 35 static int InstallKeyToKernel(uint32_t userId, uint32_t type, uint8_t *iv, uint32_t size, uint8_t flag); 36 static int UninstallOrLockUserKeyToKernel(uint32_t userId, uint32_t type, uint8_t *iv, uint32_t size, bool destroy); 37 static int LockScreenToKernel(uint32_t userId); 38 static int UnlockScreenToKernel(uint32_t userId, uint32_t type, uint8_t *iv, uint32_t size); 39 static bool IsMspReady(); 40 static int GetStatus(); 41 }; 42 } // namespace StorageDaemon 43 } // namespace OHOS 44 45 #endif // STORAGE_DAEMON_CRYPTO_FBEX_X 46