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/*
* 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.
*/
#pragma once
#include <sys/cdefs.h>
#include <sys/types.h>
__BEGIN_DECLS
/*
* Perform any required initialization - including opening any required BPF maps. This function
* needs to be called before using other functions of this library.
*
* Returns 0 on success, a negative POSIX error code (see errno.h) on other failures.
*/
int ADnsHelper_init();
/*
* The function reads bpf maps and returns whether the given uid has blocked networking or not. The
* function is supported starting from Android T.
*
* |uid| is a Linux/Android UID to be queried. It is a combination of UserID and AppID.
* |metered| indicates whether the uid is currently using a billing network.
*
* Returns 0(false)/1(true) on success, a negative POSIX error code (see errno.h) on other failures.
*/
int ADnsHelper_isUidNetworkingBlocked(uid_t uid, bool metered);
__END_DECLS
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