/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.net;
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import android.net.NetworkStats;
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/**
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* Interface for NetworkManagementService to query tethering statistics and set data limits.
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*
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* TODO: this does not really need to be an interface since Tethering runs in the same process
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* as NetworkManagementService. Consider refactoring Tethering to use direct access to
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* NetworkManagementService instead of using INetworkManagementService, and then deleting this
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* interface.
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*
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* @hide
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*/
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interface ITetheringStatsProvider {
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// Returns cumulative statistics for all tethering sessions since boot, on all upstreams.
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// @code {how} is one of the NetworkStats.STATS_PER_* constants. If {@code how} is
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// {@code STATS_PER_IFACE}, the provider should not include any traffic that is already
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// counted by kernel interface counters.
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NetworkStats getTetherStats(int how);
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// Sets the interface quota for the specified upstream interface. This is defined as the number
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// of bytes, starting from zero and counting from now, after which data should stop being
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// forwarded to/from the specified upstream. A value of QUOTA_UNLIMITED means there is no limit.
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void setInterfaceQuota(String iface, long quotaBytes);
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// Indicates that no data usage limit is set.
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const int QUOTA_UNLIMITED = -1;
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}
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