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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2019 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/>.
*
* --
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial closed-source software that incorporates or links
* directly against ZeroTier software without disclosing the source code
* of your own application.
*/
#ifndef ZT_NETWORKCONFIGMASTER_HPP
#define ZT_NETWORKCONFIGMASTER_HPP
#include <stdint.h>
#include "Constants.hpp"
#include "Dictionary.hpp"
#include "NetworkConfig.hpp"
#include "Revocation.hpp"
#include "Address.hpp"
namespace ZeroTier {
class Identity;
struct InetAddress;
/**
* Interface for network controller implementations
*/
class NetworkController
{
public:
enum ErrorCode
{
NC_ERROR_NONE = 0,
NC_ERROR_OBJECT_NOT_FOUND = 1,
NC_ERROR_ACCESS_DENIED = 2,
NC_ERROR_INTERNAL_SERVER_ERROR = 3
};
/**
* Interface for sender used to send pushes and replies
*/
class Sender
{
public:
/**
* Send a configuration to a remote peer
*
* @param nwid Network ID
* @param requestPacketId Request packet ID to send OK(NETWORK_CONFIG_REQUEST) or 0 to send NETWORK_CONFIG (push)
* @param destination Destination peer Address
* @param nc Network configuration to send
* @param sendLegacyFormatConfig If true, send an old-format network config
*/
virtual void ncSendConfig(uint64_t nwid,uint64_t requestPacketId,const Address &destination,const NetworkConfig &nc,bool sendLegacyFormatConfig) = 0;
/**
* Send revocation to a node
*
* @param destination Destination node address
* @param rev Revocation to send
*/
virtual void ncSendRevocation(const Address &destination,const Revocation &rev) = 0;
/**
* Send a network configuration request error
*
* @param nwid Network ID
* @param requestPacketId Request packet ID or 0 if none
* @param destination Destination peer Address
* @param errorCode Error code
*/
virtual void ncSendError(uint64_t nwid,uint64_t requestPacketId,const Address &destination,NetworkController::ErrorCode errorCode) = 0;
};
NetworkController() {}
virtual ~NetworkController() {}
/**
* Called when this is added to a Node to initialize and supply info
*
* @param signingId Identity for signing of network configurations, certs, etc.
* @param sender Sender implementation for sending replies or config pushes
*/
virtual void init(const Identity &signingId,Sender *sender) = 0;
/**
* Handle a network configuration request
*
* @param nwid 64-bit network ID
* @param fromAddr Originating wire address or null address if packet is not direct (or from self)
* @param requestPacketId Packet ID of request packet or 0 if not initiated by remote request
* @param identity ZeroTier identity of originating peer
* @param metaData Meta-data bundled with request (if any)
* @return Returns NETCONF_QUERY_OK if result 'nc' is valid, or an error code on error
*/
virtual void request(
uint64_t nwid,
const InetAddress &fromAddr,
uint64_t requestPacketId,
const Identity &identity,
const Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> &metaData) = 0;
};
} // namespace ZeroTier
#endif
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