Move netd_client into netd.
Change-Id: Ie4b6b303225c93f2448a503d6ea9cebb552cbad5
diff --git a/client/NetdClient.cpp b/client/NetdClient.cpp
new file mode 100644
index 0000000..2e8390c
--- /dev/null
+++ b/client/NetdClient.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2014 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 "FwmarkClient.h"
+#include "FwmarkCommand.h"
+
+#include <sys/socket.h>
+#include <unistd.h>
+
+namespace {
+
+int closeFdAndRestoreErrno(int fd) {
+ int error = errno;
+ close(fd);
+ errno = error;
+ return -1;
+}
+
+typedef int (*ConnectFunctionType)(int, const sockaddr*, socklen_t);
+typedef int (*AcceptFunctionType)(int, sockaddr*, socklen_t*);
+
+ConnectFunctionType libcConnect = 0;
+AcceptFunctionType libcAccept = 0;
+
+int netdClientConnect(int sockfd, const sockaddr* addr, socklen_t addrlen) {
+ if (FwmarkClient::shouldSetFwmark(sockfd, addr)) {
+ char data[] = {FWMARK_COMMAND_ON_CONNECT};
+ if (!FwmarkClient().send(data, sizeof(data), sockfd)) {
+ return -1;
+ }
+ }
+ return libcConnect(sockfd, addr, addrlen);
+}
+
+int netdClientAccept(int sockfd, sockaddr* addr, socklen_t* addrlen) {
+ int acceptedSocket = libcAccept(sockfd, addr, addrlen);
+ if (acceptedSocket == -1) {
+ return -1;
+ }
+ sockaddr socketAddress;
+ if (!addr) {
+ socklen_t socketAddressLen = sizeof(socketAddress);
+ if (getsockname(acceptedSocket, &socketAddress, &socketAddressLen) == -1) {
+ return closeFdAndRestoreErrno(acceptedSocket);
+ }
+ addr = &socketAddress;
+ }
+ if (FwmarkClient::shouldSetFwmark(acceptedSocket, addr)) {
+ char data[] = {FWMARK_COMMAND_ON_ACCEPT};
+ if (!FwmarkClient().send(data, sizeof(data), acceptedSocket)) {
+ return closeFdAndRestoreErrno(acceptedSocket);
+ }
+ }
+ return acceptedSocket;
+}
+
+} // namespace
+
+extern "C" void netdClientInitConnect(ConnectFunctionType* function) {
+ if (function && *function) {
+ libcConnect = *function;
+ *function = netdClientConnect;
+ }
+}
+
+extern "C" void netdClientInitAccept(AcceptFunctionType* function) {
+ if (function && *function) {
+ libcAccept = *function;
+ *function = netdClientAccept;
+ }
+}