diff options
Diffstat (limited to 'src/validation.h')
-rw-r--r-- | src/validation.h | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/src/validation.h b/src/validation.h index 19241caeb9..7f5039aaea 100644 --- a/src/validation.h +++ b/src/validation.h @@ -340,6 +340,12 @@ bool TestBlockValidity(BlockValidationState& state, bool fCheckPOW = true, bool fCheckMerkleRoot = true) EXCLUSIVE_LOCKS_REQUIRED(cs_main); +/** Check with the proof of work on each blockheader matches the value in nBits */ +bool HasValidProofOfWork(const std::vector<CBlockHeader>& headers, const Consensus::Params& consensusParams); + +/** Return the sum of the work on a given set of headers */ +arith_uint256 CalculateHeadersWork(const std::vector<CBlockHeader>& headers); + /** RAII wrapper for VerifyDB: Verify consistency of the block and coin databases */ class CVerifyDB { public: @@ -650,7 +656,7 @@ public: EXCLUSIVE_LOCKS_REQUIRED(!m_chainstate_mutex) LOCKS_EXCLUDED(::cs_main); - bool AcceptBlock(const std::shared_ptr<const CBlock>& pblock, BlockValidationState& state, CBlockIndex** ppindex, bool fRequested, const FlatFilePos* dbp, bool* fNewBlock) EXCLUSIVE_LOCKS_REQUIRED(cs_main); + bool AcceptBlock(const std::shared_ptr<const CBlock>& pblock, BlockValidationState& state, CBlockIndex** ppindex, bool fRequested, const FlatFilePos* dbp, bool* fNewBlock, bool min_pow_checked) EXCLUSIVE_LOCKS_REQUIRED(cs_main); // Block (dis)connection on a given view: DisconnectResult DisconnectBlock(const CBlock& block, const CBlockIndex* pindex, CCoinsViewCache& view) @@ -847,13 +853,20 @@ private: /** * If a block header hasn't already been seen, call CheckBlockHeader on it, ensure * that it doesn't descend from an invalid block, and then add it to m_block_index. + * Caller must set min_pow_checked=true in order to add a new header to the + * block index (permanent memory storage), indicating that the header is + * known to be part of a sufficiently high-work chain (anti-dos check). */ bool AcceptBlockHeader( const CBlockHeader& block, BlockValidationState& state, - CBlockIndex** ppindex) EXCLUSIVE_LOCKS_REQUIRED(cs_main); + CBlockIndex** ppindex, + bool min_pow_checked) EXCLUSIVE_LOCKS_REQUIRED(cs_main); friend CChainState; + /** Most recent headers presync progress update, for rate-limiting. */ + std::chrono::time_point<std::chrono::steady_clock> m_last_presync_update GUARDED_BY(::cs_main) {}; + public: using Options = kernel::ChainstateManagerOpts; @@ -989,10 +1002,15 @@ public: * * @param[in] block The block we want to process. * @param[in] force_processing Process this block even if unrequested; used for non-network block sources. + * @param[in] min_pow_checked True if proof-of-work anti-DoS checks have + * been done by caller for headers chain + * (note: only affects headers acceptance; if + * block header is already present in block + * index then this parameter has no effect) * @param[out] new_block A boolean which is set to indicate if the block was first received via this call * @returns If the block was processed, independently of block validity */ - bool ProcessNewBlock(const std::shared_ptr<const CBlock>& block, bool force_processing, bool* new_block) LOCKS_EXCLUDED(cs_main); + bool ProcessNewBlock(const std::shared_ptr<const CBlock>& block, bool force_processing, bool min_pow_checked, bool* new_block) LOCKS_EXCLUDED(cs_main); /** * Process incoming block headers. @@ -1001,10 +1019,11 @@ public: * validationinterface callback. * * @param[in] block The block headers themselves + * @param[in] min_pow_checked True if proof-of-work anti-DoS checks have been done by caller for headers chain * @param[out] state This may be set to an Error state if any error occurred processing them * @param[out] ppindex If set, the pointer will be set to point to the last new block index object for the given headers */ - bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& block, BlockValidationState& state, const CBlockIndex** ppindex = nullptr) LOCKS_EXCLUDED(cs_main); + bool ProcessNewBlockHeaders(const std::vector<CBlockHeader>& block, bool min_pow_checked, BlockValidationState& state, const CBlockIndex** ppindex = nullptr) LOCKS_EXCLUDED(cs_main); /** * Try to add a transaction to the memory pool. @@ -1028,6 +1047,12 @@ public: /** Produce the necessary coinbase commitment for a block (modifies the hash, don't call for mined blocks). */ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBlockIndex* pindexPrev) const; + /** This is used by net_processing to report pre-synchronization progress of headers, as + * headers are not yet fed to validation during that time, but validation is (for now) + * responsible for logging and signalling through NotifyHeaderTip, so it needs this + * information. */ + void ReportHeadersPresync(const arith_uint256& work, int64_t height, int64_t timestamp); + ~ChainstateManager(); }; |