Add some netdutils socket option helpers
Test: as follows
- built
Bug: 64133961
Bug: 34953048
Change-Id: I9a381d76a7595499decd39249109077164d94041
diff --git a/libnetdutils/SocketOption.cpp b/libnetdutils/SocketOption.cpp
new file mode 100644
index 0000000..023df6e
--- /dev/null
+++ b/libnetdutils/SocketOption.cpp
@@ -0,0 +1,54 @@
+/*
+ * 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