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| std::map< CNetAddr, LocalServiceInfo > mapLocalHost | GUARDED_BY (cs_mapLocalHost) |
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| uint16_t | GetListenPort () |
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| bool | GetLocal (CService &addr, const CNetAddr *paddrPeer) |
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| static std::vector< CAddress > | ConvertSeeds (const std::vector< uint8_t > &vSeedsIn) |
| | Convert the serialized seeds into usable address objects. More...
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| CAddress | GetLocalAddress (const CNetAddr *paddrPeer, ServiceFlags nLocalServices) |
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| static int | GetnScore (const CService &addr) |
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| bool | IsPeerAddrLocalGood (CNode *pnode) |
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| std::optional< CAddress > | GetLocalAddrForPeer (CNode *pnode) |
| | Returns a local address that we should advertise to this peer. More...
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| bool | AddLocal (const CService &addr, int nScore) |
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| bool | AddLocal (const CNetAddr &addr, int nScore) |
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| void | RemoveLocal (const CService &addr) |
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| void | SetReachable (enum Network net, bool reachable) |
| | Mark a network as reachable or unreachable (no automatic connects to it) More...
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| bool | IsReachable (enum Network net) |
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| bool | IsReachable (const CNetAddr &addr) |
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| bool | SeenLocal (const CService &addr) |
| | vote for a local address More...
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| bool | IsLocal (const CService &addr) |
| | check whether a given address is potentially local More...
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| static CAddress | GetBindAddress (SOCKET sock) |
| | Get the bind address for a socket as CAddress. More...
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| std::string | ConnectionTypeAsString (ConnectionType conn_type) |
| | Convert ConnectionType enum to a string value. More...
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| static bool | ReverseCompareNodeMinPingTime (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | ReverseCompareNodeTimeConnected (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareLocalHostTimeConnected (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareOnionTimeConnected (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareNetGroupKeyed (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareNodeBlockTime (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareNodeTXTime (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| static bool | CompareNodeBlockRelayOnlyTime (const NodeEvictionCandidate &a, const NodeEvictionCandidate &b) |
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| template<typename T , typename Comparator > |
| static void | EraseLastKElements (std::vector< T > &elements, Comparator comparator, size_t k, std::function< bool(const NodeEvictionCandidate &)> predicate=[](const NodeEvictionCandidate &n) { return true;}) |
| | Sort an array by the specified comparator, then erase the last K elements where predicate is true. More...
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| void | ProtectEvictionCandidatesByRatio (std::vector< NodeEvictionCandidate > &vEvictionCandidates) |
| | Protect desirable or disadvantaged inbound peers from eviction by ratio. More...
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| std::optional< NodeId > | SelectNodeToEvict (std::vector< NodeEvictionCandidate > &&vEvictionCandidates) |
| | Select an inbound peer to evict after filtering out (protecting) peers having distinct, difficult-to-forge characteristics. More...
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| void | Discover () |
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| std::chrono::microseconds | PoissonNextSend (std::chrono::microseconds now, std::chrono::seconds average_interval) |
| | Return a timestamp in the future (in microseconds) for exponentially distributed events. More...
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| void | CaptureMessage (const CAddress &addr, const std::string &msg_type, const Span< const unsigned char > &data, bool is_incoming) |
| | Dump binary message to file, with timestamp. More...
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Protect desirable or disadvantaged inbound peers from eviction by ratio.
This function protects half of the peers which have been connected the longest, to replicate the non-eviction implicit behavior and preclude attacks that start later.
Half of these protected spots (1/4 of the total) are reserved for onion peers connected via our tor control service, if any, sorted by longest uptime, even if they're not longest uptime overall. Any remaining slots of the 1/4 are then allocated to protect localhost peers, if any (or up to 2 localhost peers if no slots remain and 2 or more onion peers were protected), sorted by longest uptime, as manually configured hidden services not using -bind=addr[:port]=onion will not be detected as inbound onion connections.
This helps protect onion peers, which tend to be otherwise disadvantaged under our eviction criteria for their higher min ping times relative to IPv4 and IPv6 peers, and favorise the diversity of peer connections.
This function was extracted from SelectNodeToEvict() to be able to test the ratio-based protection logic deterministically.
Definition at line 895 of file net.cpp.
Select an inbound peer to evict after filtering out (protecting) peers having distinct, difficult-to-forge characteristics.
The protection logic picks out fixed numbers of desirable peers per various criteria, followed by (mostly) ratios of desirable or disadvantaged peers. If any eviction candidates remain, the selection logic chooses a peer to evict.
Definition at line 931 of file net.cpp.
| constexpr std::chrono::seconds DNSSEEDS_DELAY_FEW_PEERS {11} |
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staticconstexpr |
How long to delay before querying DNS seeds.
If we have more than THRESHOLD entries in addrman, then it's likely that we got those addresses from having previously connected to the P2P network, and that we'll be able to successfully reconnect to the P2P network via contacting one of them. So if that's the case, spend a little longer trying to connect to known peers before querying the DNS seeds.
Definition at line 71 of file net.cpp.
1.8.17