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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.
*/
#include "netdutils/SocketOption.h"
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <sys/socket.h>
#include <utility>
#include "netdutils/Syscalls.h"
namespace android {
namespace netdutils {
Status enableSockopt(Fd sock, int level, int optname) {
auto& sys = sSyscalls.get();
const int on = 1;
return sys.setsockopt(sock, level, optname, &on, sizeof(on));
}
Status enableTcpKeepAlives(Fd sock, unsigned idleTime, unsigned numProbes, unsigned probeInterval) {
RETURN_IF_NOT_OK(enableSockopt(sock, SOL_SOCKET, SO_KEEPALIVE));
auto& sys = sSyscalls.get();
if (idleTime != 0) {
RETURN_IF_NOT_OK(sys.setsockopt(sock, SOL_TCP, TCP_KEEPIDLE, &idleTime, sizeof(idleTime)));
}
if (numProbes != 0) {
RETURN_IF_NOT_OK(sys.setsockopt(sock, SOL_TCP, TCP_KEEPCNT, &numProbes, sizeof(numProbes)));
}
if (probeInterval != 0) {
RETURN_IF_NOT_OK(sys.setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &probeInterval,
sizeof(probeInterval)));
}
return status::ok;
}
} // namespace netdutils
} // namespace android
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