76f74811c4
At startup, we choose one peer to serve us the headers chain, until our best header is close to caught up. Disconnect this peer if more than 15 minutes + 1ms/expected_header passes and our best header is still more than 1 day away from current time.
67 lines
2.9 KiB
C++
67 lines
2.9 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2016 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_NET_PROCESSING_H
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#define BITCOIN_NET_PROCESSING_H
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#include "net.h"
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#include "validationinterface.h"
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/** Default for -maxorphantx, maximum number of orphan transactions kept in memory */
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static const unsigned int DEFAULT_MAX_ORPHAN_TRANSACTIONS = 100;
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/** Expiration time for orphan transactions in seconds */
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static const int64_t ORPHAN_TX_EXPIRE_TIME = 20 * 60;
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/** Minimum time between orphan transactions expire time checks in seconds */
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static const int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60;
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/** Default number of orphan+recently-replaced txn to keep around for block reconstruction */
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static const unsigned int DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN = 100;
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/** Headers download timeout expressed in microseconds
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* Timeout = base + per_header * (expected number of headers) */
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static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_BASE = 15 * 60 * 1000000; // 15 minutes
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static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER = 1000; // 1ms/header
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/** Register with a network node to receive its signals */
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void RegisterNodeSignals(CNodeSignals& nodeSignals);
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/** Unregister a network node */
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void UnregisterNodeSignals(CNodeSignals& nodeSignals);
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class PeerLogicValidation : public CValidationInterface {
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private:
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CConnman* connman;
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public:
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PeerLogicValidation(CConnman* connmanIn);
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void BlockConnected(const std::shared_ptr<const CBlock>& pblock, const CBlockIndex* pindexConnected, const std::vector<CTransactionRef>& vtxConflicted) override;
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void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) override;
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void BlockChecked(const CBlock& block, const CValidationState& state) override;
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void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& pblock) override;
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};
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struct CNodeStateStats {
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int nMisbehavior;
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int nSyncHeight;
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int nCommonHeight;
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std::vector<int> vHeightInFlight;
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};
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/** Get statistics from node state */
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bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats);
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/** Increase a node's misbehavior score. */
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void Misbehaving(NodeId nodeid, int howmuch);
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/** Process protocol messages received from a given node */
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bool ProcessMessages(CNode* pfrom, CConnman& connman, const std::atomic<bool>& interrupt);
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/**
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* Send queued protocol messages to be sent to a give node.
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*
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* @param[in] pto The node which we are sending messages to.
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* @param[in] connman The connection manager for that node.
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* @param[in] interrupt Interrupt condition for processing threads
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* @return True if there is more work to be done
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*/
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bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interrupt);
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#endif // BITCOIN_NET_PROCESSING_H
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