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osdep/EthernetTap.hpp

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+/*
+ * Copyright (c)2019 ZeroTier, Inc.
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file in the project's root directory.
+ *
+ * Change Date: 2026-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2.0 of the Apache License.
+ */
+/****/
+
+#ifndef ZT_ETHERNETTAP_HPP
+#define ZT_ETHERNETTAP_HPP
+
+#include "../node/Constants.hpp"
+#include "../node/MAC.hpp"
+#include "../node/InetAddress.hpp"
+#include "../node/MulticastGroup.hpp"
+
+#include <string>
+#include <memory>
+#include <vector>
+
+#define GETIFADDRS_CACHE_TIME 1000
+
+namespace ZeroTier {
+
+class EthernetTap
+{
+public:
+	static std::shared_ptr<EthernetTap> newInstance(
+		const char *tapDeviceType, // OS-specific, NULL for default
+		unsigned int concurrency,
+		bool pinning,
+		const char *homePath,
+		const MAC &mac,
+		unsigned int mtu,
+		unsigned int metric,
+		uint64_t nwid,
+		const char *friendlyName,
+		void (*handler)(void *,void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
+		void *arg);
+
+	EthernetTap();
+	virtual ~EthernetTap();
+
+	virtual void setEnabled(bool en) = 0;
+	virtual bool enabled() const = 0;
+	virtual bool addIp(const InetAddress &ip) = 0;
+	virtual bool addIps(std::vector<InetAddress> ips); // uses addIp() unless overridden
+	virtual bool removeIp(const InetAddress &ip) = 0;
+	virtual std::vector<InetAddress> ips() const = 0;
+	virtual void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len) = 0;
+	virtual std::string deviceName() const = 0;
+	virtual void setFriendlyName(const char *friendlyName) = 0;
+	virtual std::string friendlyName() const;
+	virtual void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed) = 0;
+	virtual void setMtu(unsigned int mtu) = 0;
+	virtual void setDns(const char *domain, const std::vector<InetAddress> &servers) = 0;
+};
+
+} // namespace ZeroTier
+
+#endif