mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2025-09-04 13:52:52 +02:00
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
/* 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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