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86 lines
2.6 KiB
86 lines
2.6 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_SELFAWARENESS_HPP |
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#define ZT_SELFAWARENESS_HPP |
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#include "Constants.hpp" |
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#include "InetAddress.hpp" |
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#include "Hashtable.hpp" |
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#include "Address.hpp" |
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#include "Mutex.hpp" |
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namespace ZeroTier { |
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class RuntimeEnvironment; |
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/** |
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* Tracks changes to this peer's real world addresses |
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*/ |
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class SelfAwareness |
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{ |
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public: |
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SelfAwareness(const RuntimeEnvironment *renv); |
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/** |
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* Called when a trusted remote peer informs us of our external network address |
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* |
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* @param reporter ZeroTier address of reporting peer |
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* @param receivedOnLocalAddress Local address on which report was received |
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* @param reporterPhysicalAddress Physical address that reporting peer seems to have |
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* @param myPhysicalAddress Physical address that peer says we have |
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* @param trusted True if this peer is trusted as an authority to inform us of external address changes |
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* @param now Current time |
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*/ |
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void iam(void *tPtr,const Address &reporter,const int64_t receivedOnLocalSocket,const InetAddress &reporterPhysicalAddress,const InetAddress &myPhysicalAddress,bool trusted,int64_t now); |
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/** |
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* Clean up database periodically |
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* |
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* @param now Current time |
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*/ |
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void clean(int64_t now); |
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private: |
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struct PhySurfaceKey |
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{ |
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Address reporter; |
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int64_t receivedOnLocalSocket; |
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InetAddress reporterPhysicalAddress; |
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InetAddress::IpScope scope; |
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PhySurfaceKey() : reporter(),scope(InetAddress::IP_SCOPE_NONE) {} |
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PhySurfaceKey(const Address &r,const int64_t rol,const InetAddress &ra,InetAddress::IpScope s) : reporter(r),receivedOnLocalSocket(rol),reporterPhysicalAddress(ra),scope(s) {} |
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inline unsigned long hashCode() const { return ((unsigned long)reporter.toInt() + (unsigned long)scope); } |
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inline bool operator==(const PhySurfaceKey &k) const { return ((reporter == k.reporter)&&(receivedOnLocalSocket == k.receivedOnLocalSocket)&&(reporterPhysicalAddress == k.reporterPhysicalAddress)&&(scope == k.scope)); } |
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}; |
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struct PhySurfaceEntry |
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{ |
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InetAddress mySurface; |
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uint64_t ts; |
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bool trusted; |
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PhySurfaceEntry() : mySurface(),ts(0),trusted(false) {} |
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PhySurfaceEntry(const InetAddress &a,const uint64_t t) : mySurface(a),ts(t),trusted(false) {} |
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}; |
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const RuntimeEnvironment *RR; |
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Hashtable< PhySurfaceKey,PhySurfaceEntry > _phy; |
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Mutex _phy_m; |
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}; |
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} // namespace ZeroTier |
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#endif
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