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zerotierone/node/NetworkController.hpp

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+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2016  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ZT_NETWORKCONFIGMASTER_HPP
+#define ZT_NETWORKCONFIGMASTER_HPP
+
+#include <stdint.h>
+
+#include "Constants.hpp"
+#include "InetAddress.hpp"
+#include "Address.hpp"
+#include "Identity.hpp"
+#include "NetworkConfigRequestMetaData.hpp"
+#include "Buffer.hpp"
+
+namespace ZeroTier {
+
+class RuntimeEnvironment;
+
+/**
+ * Interface for network controller implementations
+ */
+class NetworkController
+{
+public:
+	/**
+	 * Return value of doNetworkConfigRequest
+	 */
+	enum ResultCode
+	{
+		NETCONF_QUERY_OK = 0,
+		NETCONF_QUERY_OBJECT_NOT_FOUND = 1,
+		NETCONF_QUERY_ACCESS_DENIED = 2,
+		NETCONF_QUERY_INTERNAL_SERVER_ERROR = 3,
+		NETCONF_QUERY_IGNORE = 4
+	};
+
+	NetworkController() {}
+	virtual ~NetworkController() {}
+
+	/**
+	 * Handle a network config request, sending replies if necessary
+	 *
+	 * This call is permitted to block, and may be called concurrently from more
+	 * than one thread. Implementations must use locks if needed.
+	 *
+	 * On internal server errors, the 'error' field in result can be filled in
+	 * to indicate the error.
+	 *
+	 * @param fromAddr Originating wire address or null address if packet is not direct (or from self)
+	 * @param signingId Identity that should be used to sign results -- must include private key
+	 * @param identity Originating peer ZeroTier identity
+	 * @param nwid 64-bit network ID
+	 * @param metaData Meta-data bundled with request (if any)
+	 * @param result Buffer to receive serialized network configuration data (any existing data in buffer is preserved)
+	 * @return Returns NETCONF_QUERY_OK if result dictionary is valid, or an error code on error
+	 */
+	virtual NetworkController::ResultCode doNetworkConfigRequest(
+		const InetAddress &fromAddr,
+		const Identity &signingId,
+		const Identity &identity,
+		uint64_t nwid,
+		const NetworkConfigRequestMetaData &metaData,
+		Buffer<8194> &result) = 0;
+};
+
+} // namespace ZeroTier
+
+#endif