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71 lines
1.8 KiB
71 lines
1.8 KiB
/* |
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* Copyright (c)2019 ZeroTier, Inc. |
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* |
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* Use of this software is governed by the Business Source License included |
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* in the LICENSE.TXT file in the project's root directory. |
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* |
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* Change Date: 2023-01-01 |
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* |
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* On the date above, in accordance with the Business Source License, use |
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* of this software will be governed by version 2.0 of the Apache License. |
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*/ |
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/****/ |
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#ifndef ZT_NEIGHBORDISCOVERY_HPP |
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#define ZT_NEIGHBORDISCOVERY_HPP |
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#include "../node/Hashtable.hpp" |
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#include "../node/MAC.hpp" |
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#include "../node/InetAddress.hpp" |
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#define ZT_ND_QUERY_INTERVAL 2000 |
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#define ZT_ND_QUERY_MAX_TTL 5000 |
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#define ZT_ND_EXPIRE 600000 |
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namespace ZeroTier { |
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class NeighborDiscovery |
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{ |
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public: |
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NeighborDiscovery(); |
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/** |
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* Set a local IP entry that we should respond to Neighbor Requests withPrefix64k |
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* |
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* @param mac Our local MAC address |
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* @param ip Our IPv6 address |
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*/ |
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void addLocal(const sockaddr_storage &address, const MAC &mac); |
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/** |
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* Delete a local IP entry or cached Neighbor entry |
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* |
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* @param address IPv6 address to remove |
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*/ |
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void remove(const sockaddr_storage &address); |
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sockaddr_storage processIncomingND(const uint8_t *nd, unsigned int len, const sockaddr_storage &localIp, uint8_t *response, unsigned int &responseLen, MAC &responseDest); |
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MAC query(const MAC &localMac, const sockaddr_storage &localIp, const sockaddr_storage &targetIp, uint8_t *query, unsigned int &queryLen, MAC &queryDest); |
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private: |
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struct _NDEntry |
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{ |
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_NDEntry() : lastQuerySent(0), lastResponseReceived(0), mac(), local(false) {} |
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uint64_t lastQuerySent; |
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uint64_t lastResponseReceived; |
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MAC mac; |
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bool local; |
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}; |
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Hashtable<InetAddress, _NDEntry> _cache; |
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uint64_t _lastCleaned; |
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}; |
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} // namespace ZeroTier |
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#endif
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