|  | // | 
|  | // Copyright (C) 2023 The Android Open Source Project | 
|  | // | 
|  | // Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | // you may not use this file except in compliance with the License. | 
|  | // You may obtain a copy of the License at | 
|  | // | 
|  | //      http://www.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  | // | 
|  | #include <update_engine/aosp/permission.h> | 
|  |  | 
|  | #include <array> | 
|  | #include <algorithm> | 
|  | #include <android-base/stringprintf.h> | 
|  | #include <android-base/logging.h> | 
|  |  | 
|  | namespace chromeos_update_engine { | 
|  |  | 
|  | android::binder::Status CheckCallingUid() { | 
|  | const auto calling_uid = android::BinderWrapper::Get()->GetCallingUid(); | 
|  | if (!Contains(kAllowedUids, calling_uid)) { | 
|  | LOG(ERROR) << "Calling UID " << calling_uid | 
|  | << " is not allowed to access update_engine APIs"; | 
|  | auto message = | 
|  | android::base::StringPrintf("UID %d is not allowed", calling_uid); | 
|  | return android::binder::Status::fromExceptionCode( | 
|  | android::binder::Status::EX_SECURITY, | 
|  | android::String8(message.c_str())); | 
|  | } | 
|  | return android::binder::Status::ok(); | 
|  | } | 
|  |  | 
|  | }  // namespace chromeos_update_engine |