upload android base code part6

android/system/netd/server/NetdConstants.h

@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012 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 _NETD_CONSTANTS_H
+#define _NETD_CONSTANTS_H
+
+#include <string>
+#include <list>
+#include <ifaddrs.h>
+#include <netdb.h>
+#include <stdarg.h>
+
+#include <chrono>
+
+#include <private/android_filesystem_config.h>
+
+#include "utils/RWLock.h"
+
+const int PROTECT_MARK = 0x1;
+const int MAX_SYSTEM_UID = AID_APP - 1;
+
+extern const size_t SHA256_SIZE;
+
+extern const char * const OEM_SCRIPT_PATH;
+extern const char * const ADD;
+extern const char * const DEL;
+
+enum IptablesTarget { V4, V6, V4V6 };
+
+int execIptablesRestore(IptablesTarget target, const std::string& commands);
+int execIptablesRestoreWithOutput(IptablesTarget target, const std::string& commands,
+                                  std::string *output);
+int execIptablesRestoreCommand(IptablesTarget target, const std::string& table,
+                               const std::string& command, std::string *output);
+bool isIfaceName(const std::string& name);
+int parsePrefix(const char *prefix, uint8_t *family, void *address, int size, uint8_t *prefixlen);
+void blockSigpipe();
+void setCloseOnExec(const char *sock);
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+
+#define __INT_STRLEN(i) sizeof(#i)
+#define _INT_STRLEN(i) __INT_STRLEN(i)
+#define INT32_STRLEN _INT_STRLEN(INT32_MIN)
+#define UINT32_STRLEN _INT_STRLEN(UINT32_MAX)
+#define UINT32_HEX_STRLEN sizeof("0x12345678")
+
+#define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
+
+const uid_t INVALID_UID = static_cast<uid_t>(-1);
+
+
+struct AddrinfoDeleter {
+    void operator()(struct addrinfo* p) const {
+        if (p != nullptr) {
+            freeaddrinfo(p);
+        }
+    }
+};
+
+typedef std::unique_ptr<struct addrinfo, struct AddrinfoDeleter> ScopedAddrinfo;
+
+
+struct IfaddrsDeleter {
+    void operator()(struct ifaddrs *p) const {
+        if (p != nullptr) {
+            freeifaddrs(p);
+        }
+    }
+};
+
+typedef std::unique_ptr<struct ifaddrs, struct IfaddrsDeleter> ScopedIfaddrs;
+
+namespace android {
+namespace net {
+
+/**
+ * This lock exists to make NetdNativeService RPCs (which come in on multiple Binder threads)
+ * coexist with the commands in CommandListener.cpp. These are presumed not thread-safe because
+ * CommandListener has only one user (NetworkManagementService), which is connected through a
+ * FrameworkListener that passes in commands one at a time.
+ */
+extern android::RWLock gBigNetdLock;
+
+}  // namespace net
+}  // namespace android
+
+#endif  // _NETD_CONSTANTS_H