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/*
* Copyright (C) 2018 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 NETDUTILS_SOCKETOPTION_H
#define NETDUTILS_SOCKETOPTION_H
#include <netinet/in.h>
#include <sys/socket.h>
#include <string>
#include "netdutils/Fd.h"
#include "netdutils/Status.h"
namespace android {
namespace netdutils {
// Turn on simple "boolean" socket options.
//
// This is simple wrapper for options that are enabled via code of the form:
//
// int on = 1;
// setsockopt(..., &on, sizeof(on));
Status enableSockopt(Fd sock, int level, int optname);
// Turn on TCP keepalives, and set keepalive parameters for this socket.
//
// A parameter value of zero does not set that parameter.
//
// Typical system defaults are:
//
// idleTime (in seconds)
// $ cat /proc/sys/net/ipv4/tcp_keepalive_time
// 7200
//
// numProbes
// $ cat /proc/sys/net/ipv4/tcp_keepalive_probes
// 9
//
// probeInterval (in seconds)
// $ cat /proc/sys/net/ipv4/tcp_keepalive_intvl
// 75
Status enableTcpKeepAlives(Fd sock, unsigned idleTime, unsigned numProbes, unsigned probeInterval);
} // namespace netdutils
} // namespace android
#endif /* NETDUTILS_SOCKETOPTION_H */
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