56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
/*
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* Copyright (C) 2014 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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#ifndef NETD_CLIENT_FWMARK_CLIENT_H
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#define NETD_CLIENT_FWMARK_CLIENT_H
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#include <sys/socket.h>
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struct FwmarkCommand;
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struct FwmarkConnectInfo;
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class FwmarkClient {
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public:
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// Returns true if a socket of the given |family| should be sent to the fwmark server to have
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// its SO_MARK set.
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static bool shouldSetFwmark(int family);
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// Returns true if an additional call should be made after ON_CONNECT calls, to log extra
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// information like latency and source IP.
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static bool shouldReportConnectComplete(int family);
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FwmarkClient();
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~FwmarkClient();
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// Sends |data| to the fwmark server, along with |fd| as ancillary data using cmsg(3).
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// For ON_CONNECT_COMPLETE |data| command, |connectInfo| should be provided.
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// Returns 0 on success or a negative errno value on failure.
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int send(FwmarkCommand* data, int fd, FwmarkConnectInfo* connectInfo);
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// Env flag to control whether FwmarkClient sends any information at all about network events
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// back to the system server through FwmarkServer.
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static constexpr const char* ANDROID_NO_USE_FWMARK_CLIENT = "ANDROID_NO_USE_FWMARK_CLIENT";
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// Env flag to control whether FwmarkClient should exclude detailed information like IP
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// addresses and only send basic information necessary for marking sockets.
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// Has no effect if ANDROID_NO_USE_FWMARK_CLIENT is set.
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static constexpr const char* ANDROID_FWMARK_METRICS_ONLY = "ANDROID_FWMARK_METRICS_ONLY";
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private:
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int mChannel;
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};
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#endif // NETD_CLIENT_FWMARK_CLIENT_H
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