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/*
* Copyright (C) 2014 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.
*/
#ifndef NETD_SERVER_UID_RANGES_H
#define NETD_SERVER_UID_RANGES_H
#include "android/net/INetd.h"
#include <sys/types.h>
#include <utility>
#include <vector>
namespace android {
namespace net {
class UidRanges {
public:
static constexpr int SUB_PRIORITY_HIGHEST = 0;
static constexpr int SUB_PRIORITY_LOWEST = 998;
// "Special" value used for giving UIDs access to a network (by installing explicit and implicit
// network rules) without automatically making that network default. This rule works in
// conjunction with the other subpriorities, meaning that the network could still be configured
// as the app's default using one of the lower values (0-998).
// Note: SUB_PRIORITY_NO_DEFAULT *must* be SUB_PRIORITY_LOWEST + 1!
static constexpr int SUB_PRIORITY_NO_DEFAULT = 999;
UidRanges() {}
UidRanges(const std::vector<android::net::UidRangeParcel>& ranges);
bool hasUid(uid_t uid) const;
const std::vector<UidRangeParcel>& getRanges() const;
bool parseFrom(int argc, char* argv[]);
std::string toString() const;
void add(const UidRanges& other);
void remove(const UidRanges& other);
// check if 'mRanges' has uid overlap between elements.
bool overlapsSelf() const;
// check if this object has uid overlap with the input object.
bool overlaps(const UidRanges& other) const;
bool empty() const { return mRanges.empty(); }
private:
// Keep it sorted. The overlaps() implements binary search, which requires a sorted data.
std::vector<UidRangeParcel> mRanges;
};
} // namespace net
} // namespace android
#endif // NETD_SERVER_UID_RANGES_H
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