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99 lines
2.7 KiB
99 lines
2.7 KiB
/* This Source Code Form is subject to the terms of the Mozilla Public |
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* License, v. 2.0. If a copy of the MPL was not distributed with this |
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. |
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* |
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* (c) ZeroTier, Inc. |
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* https://www.zerotier.com/ |
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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 "Address.hpp" |
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#include "Constants.hpp" |
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#include "Hashtable.hpp" |
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#include "InetAddress.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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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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* Return all known external surface addresses reported by peers |
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* |
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* @return A vector of InetAddress(es) |
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*/ |
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std::vector<InetAddress> whoami(); |
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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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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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{ |
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} |
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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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{ |
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} |
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inline unsigned long hashCode() const |
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{ |
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return ((unsigned long)reporter.toInt() + (unsigned long)scope); |
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} |
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inline bool operator==(const PhySurfaceKey& k) const |
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{ |
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return ((reporter == k.reporter) && (receivedOnLocalSocket == k.receivedOnLocalSocket) && (reporterPhysicalAddress == k.reporterPhysicalAddress) && (scope == k.scope)); |
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} |
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}; |
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struct PhySurfaceEntry { |
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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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{ |
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} |
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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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} |
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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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