1 /* 2 * Copyright (c) 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 /** 17 * @addtogroup TeeTrusted 18 * @{ 19 * 20 * @brief TEE(Trusted Excution Environment) API. 21 * Provides security capability APIs such as trusted storage, encryption and decryption, 22 * and trusted time for trusted application development. 23 * 24 * @since 20 25 */ 26 27 /** 28 * @file tee_sharemem.h 29 * 30 * @brief Provides APIs for shared memory. 31 * 32 * @library NA 33 * @kit TEEKit 34 * @syscap SystemCapability.Tee.TeeClient 35 * @since 20 36 */ 37 38 #ifndef TEE_SHAREMEM_H 39 #define TEE_SHAREMEM_H 40 41 #include <stdint.h> 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /** 48 * @brief get advanced security mode 49 * 50 * @param advsecmode [OUT] 0:no advanced security mode; none-zero:level of security mode. 51 * 52 * @return TEE_SUCCESS means success, others means failed. 53 * @since 20 54 */ 55 int32_t tee_ext_get_advsecmode(uint32_t *advsecmode); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 61 #endif 62 /** @} */