diff options
Diffstat (limited to 'src/validation.cpp')
| -rw-r--r-- | src/validation.cpp | 748 |
1 files changed, 107 insertions, 641 deletions
diff --git a/src/validation.cpp b/src/validation.cpp index d1b9efe7ba..f591e64fd4 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -21,6 +21,7 @@ #include <index/txindex.h> #include <logging.h> #include <logging/timer.h> +#include <node/blockstorage.h> #include <node/coinstats.h> #include <node/ui_interface.h> #include <policy/policy.h> @@ -65,10 +66,6 @@ static const unsigned int EXTRA_DESCENDANT_TX_SIZE_LIMIT = 10000; /** Maximum kilobytes for transactions to store for processing during reorg */ static const unsigned int MAX_DISCONNECTED_TX_POOL_SIZE = 20000; -/** The pre-allocation chunk size for blk?????.dat files (since 0.8) */ -static const unsigned int BLOCKFILE_CHUNK_SIZE = 0x1000000; // 16 MiB -/** The pre-allocation chunk size for rev?????.dat files (since 0.8) */ -static const unsigned int UNDOFILE_CHUNK_SIZE = 0x100000; // 1 MiB /** Time to wait between writing blocks/block index to disk. */ static constexpr std::chrono::hours DATABASE_WRITE_INTERVAL{1}; /** Time to wait between flushing chainstate to disk. */ @@ -134,14 +131,9 @@ Mutex g_best_block_mutex; std::condition_variable g_best_block_cv; uint256 g_best_block; bool g_parallel_script_checks{false}; -std::atomic_bool fImporting(false); -std::atomic_bool fReindex(false); -bool fHavePruned = false; -bool fPruneMode = false; bool fRequireStandard = true; bool fCheckBlockIndex = false; bool fCheckpointsEnabled = DEFAULT_CHECKPOINTS_ENABLED; -uint64_t nPruneTarget = 0; int64_t nMaxTipAge = DEFAULT_MAX_TIP_AGE; uint256 hashAssumeValid; @@ -152,24 +144,19 @@ CFeeRate minRelayTxFee = CFeeRate(DEFAULT_MIN_RELAY_TX_FEE); // Internal stuff namespace { CBlockIndex* pindexBestInvalid = nullptr; - - RecursiveMutex cs_LastBlockFile; - std::vector<CBlockFileInfo> vinfoBlockFile; - int nLastBlockFile = 0; - /** Global flag to indicate we should check to see if there are - * block/undo files that should be deleted. Set on startup - * or if we allocate more file space when we're in prune mode - */ - bool fCheckForPruning = false; - - /** Dirty block index entries. */ - std::set<CBlockIndex*> setDirtyBlockIndex; - - /** Dirty block file entries. */ - std::set<int> setDirtyFileInfo; -} // anon namespace - -CBlockIndex* BlockManager::LookupBlockIndex(const uint256& hash) +} // namespace + +// Internal stuff from blockstorage ... +extern RecursiveMutex cs_LastBlockFile; +extern std::vector<CBlockFileInfo> vinfoBlockFile; +extern int nLastBlockFile; +extern bool fCheckForPruning; +extern std::set<CBlockIndex*> setDirtyBlockIndex; +extern std::set<int> setDirtyFileInfo; +void FlushBlockFile(bool fFinalize = false, bool finalize_undo = false); +// ... TODO move fully to blockstorage + +CBlockIndex* BlockManager::LookupBlockIndex(const uint256& hash) const { AssertLockHeld(cs_main); assert(std::addressof(g_chainman.BlockIndex()) == std::addressof(m_block_index)); @@ -204,9 +191,6 @@ bool CheckInputScripts(const CTransaction& tx, TxValidationState& state, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck>* pvChecks = nullptr) EXCLUSIVE_LOCKS_REQUIRED(cs_main); -static FILE* OpenUndoFile(const FlatFilePos &pos, bool fReadOnly = false); -static FlatFileSeq BlockFileSeq(); -static FlatFileSeq UndoFileSeq(); bool CheckFinalTx(const CBlockIndex* active_chain_tip, const CTransaction &tx, int flags) { @@ -690,7 +674,8 @@ bool MemPoolAccept::PreChecks(ATMPArgs& args, Workspace& ws) } } - // Bring the best block into scope + // This is const, but calls into the back end CoinsViews. The CCoinsViewDB at the bottom of the + // hierarchy brings the best block into scope. See CCoinsViewDB::GetBestBlock(). m_view.GetBestBlock(); // we have all inputs cached now, so switch back to dummy (to protect @@ -1099,9 +1084,9 @@ static MempoolAcceptResult AcceptToMemoryPoolWithTime(const CChainParams& chainp assert(std::addressof(::ChainstateActive()) == std::addressof(active_chainstate)); const MempoolAcceptResult result = MemPoolAccept(pool, active_chainstate).AcceptSingleTransaction(tx, args); if (result.m_result_type != MempoolAcceptResult::ResultType::VALID) { - // Remove coins that were not present in the coins cache before calling ATMPW; - // this is to prevent memory DoS in case we receive a large number of - // invalid transactions that attempt to overrun the in-memory coins cache + // Remove coins that were not present in the coins cache before calling + // AcceptSingleTransaction(); this is to prevent memory DoS in case we receive a large + // number of invalid transactions that attempt to overrun the in-memory coins cache // (`CCoinsViewCache::cacheCoins`). for (const COutPoint& hashTx : coins_to_uncache) @@ -1147,123 +1132,6 @@ CTransactionRef GetTransaction(const CBlockIndex* const block_index, const CTxMe return nullptr; } -////////////////////////////////////////////////////////////////////////////// -// -// CBlock and CBlockIndex -// - -static bool WriteBlockToDisk(const CBlock& block, FlatFilePos& pos, const CMessageHeader::MessageStartChars& messageStart) -{ - // Open history file to append - CAutoFile fileout(OpenBlockFile(pos), SER_DISK, CLIENT_VERSION); - if (fileout.IsNull()) - return error("WriteBlockToDisk: OpenBlockFile failed"); - - // Write index header - unsigned int nSize = GetSerializeSize(block, fileout.GetVersion()); - fileout << messageStart << nSize; - - // Write block - long fileOutPos = ftell(fileout.Get()); - if (fileOutPos < 0) - return error("WriteBlockToDisk: ftell failed"); - pos.nPos = (unsigned int)fileOutPos; - fileout << block; - - return true; -} - -bool ReadBlockFromDisk(CBlock& block, const FlatFilePos& pos, const Consensus::Params& consensusParams) -{ - block.SetNull(); - - // Open history file to read - CAutoFile filein(OpenBlockFile(pos, true), SER_DISK, CLIENT_VERSION); - if (filein.IsNull()) - return error("ReadBlockFromDisk: OpenBlockFile failed for %s", pos.ToString()); - - // Read block - try { - filein >> block; - } - catch (const std::exception& e) { - return error("%s: Deserialize or I/O error - %s at %s", __func__, e.what(), pos.ToString()); - } - - // Check the header - if (!CheckProofOfWork(block.GetHash(), block.nBits, consensusParams)) - return error("ReadBlockFromDisk: Errors in block header at %s", pos.ToString()); - - // Signet only: check block solution - if (consensusParams.signet_blocks && !CheckSignetBlockSolution(block, consensusParams)) { - return error("ReadBlockFromDisk: Errors in block solution at %s", pos.ToString()); - } - - return true; -} - -bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex, const Consensus::Params& consensusParams) -{ - FlatFilePos blockPos; - { - LOCK(cs_main); - blockPos = pindex->GetBlockPos(); - } - - if (!ReadBlockFromDisk(block, blockPos, consensusParams)) - return false; - if (block.GetHash() != pindex->GetBlockHash()) - return error("ReadBlockFromDisk(CBlock&, CBlockIndex*): GetHash() doesn't match index for %s at %s", - pindex->ToString(), pindex->GetBlockPos().ToString()); - return true; -} - -bool ReadRawBlockFromDisk(std::vector<uint8_t>& block, const FlatFilePos& pos, const CMessageHeader::MessageStartChars& message_start) -{ - FlatFilePos hpos = pos; - hpos.nPos -= 8; // Seek back 8 bytes for meta header - CAutoFile filein(OpenBlockFile(hpos, true), SER_DISK, CLIENT_VERSION); - if (filein.IsNull()) { - return error("%s: OpenBlockFile failed for %s", __func__, pos.ToString()); - } - - try { - CMessageHeader::MessageStartChars blk_start; - unsigned int blk_size; - - filein >> blk_start >> blk_size; - - if (memcmp(blk_start, message_start, CMessageHeader::MESSAGE_START_SIZE)) { - return error("%s: Block magic mismatch for %s: %s versus expected %s", __func__, pos.ToString(), - HexStr(blk_start), - HexStr(message_start)); - } - - if (blk_size > MAX_SIZE) { - return error("%s: Block data is larger than maximum deserialization size for %s: %s versus %s", __func__, pos.ToString(), - blk_size, MAX_SIZE); - } - - block.resize(blk_size); // Zeroing of memory is intentional here - filein.read((char*)block.data(), blk_size); - } catch(const std::exception& e) { - return error("%s: Read from block file failed: %s for %s", __func__, e.what(), pos.ToString()); - } - - return true; -} - -bool ReadRawBlockFromDisk(std::vector<uint8_t>& block, const CBlockIndex* pindex, const CMessageHeader::MessageStartChars& message_start) -{ - FlatFilePos block_pos; - { - LOCK(cs_main); - block_pos = pindex->GetBlockPos(); - } - - return ReadRawBlockFromDisk(block, block_pos, message_start); -} - CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams) { int halvings = nHeight / consensusParams.nSubsidyHalvingInterval; @@ -1282,7 +1150,7 @@ CoinsViews::CoinsViews( size_t cache_size_bytes, bool in_memory, bool should_wipe) : m_dbview( - GetDataDir() / ldb_name, cache_size_bytes, in_memory, should_wipe), + gArgs.GetDataDirNet() / ldb_name, cache_size_bytes, in_memory, should_wipe), m_catcherview(&m_dbview) {} void CoinsViews::InitCache() @@ -1290,7 +1158,7 @@ void CoinsViews::InitCache() m_cacheview = std::make_unique<CCoinsViewCache>(&m_catcherview); } -CChainState::CChainState(CTxMemPool& mempool, BlockManager& blockman, uint256 from_snapshot_blockhash) +CChainState::CChainState(CTxMemPool& mempool, BlockManager& blockman, std::optional<uint256> from_snapshot_blockhash) : m_mempool(mempool), m_blockman(blockman), m_from_snapshot_blockhash(from_snapshot_blockhash) {} @@ -1301,8 +1169,8 @@ void CChainState::InitCoinsDB( bool should_wipe, std::string leveldb_name) { - if (!m_from_snapshot_blockhash.IsNull()) { - leveldb_name += "_" + m_from_snapshot_blockhash.ToString(); + if (m_from_snapshot_blockhash) { + leveldb_name += "_" + m_from_snapshot_blockhash->ToString(); } m_coins_views = std::make_unique<CoinsViews>( @@ -1577,78 +1445,7 @@ bool CheckInputScripts(const CTransaction& tx, TxValidationState& state, return true; } -static bool UndoWriteToDisk(const CBlockUndo& blockundo, FlatFilePos& pos, const uint256& hashBlock, const CMessageHeader::MessageStartChars& messageStart) -{ - // Open history file to append - CAutoFile fileout(OpenUndoFile(pos), SER_DISK, CLIENT_VERSION); - if (fileout.IsNull()) - return error("%s: OpenUndoFile failed", __func__); - - // Write index header - unsigned int nSize = GetSerializeSize(blockundo, fileout.GetVersion()); - fileout << messageStart << nSize; - - // Write undo data - long fileOutPos = ftell(fileout.Get()); - if (fileOutPos < 0) - return error("%s: ftell failed", __func__); - pos.nPos = (unsigned int)fileOutPos; - fileout << blockundo; - - // calculate & write checksum - CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION); - hasher << hashBlock; - hasher << blockundo; - fileout << hasher.GetHash(); - - return true; -} - -bool UndoReadFromDisk(CBlockUndo& blockundo, const CBlockIndex* pindex) -{ - FlatFilePos pos = pindex->GetUndoPos(); - if (pos.IsNull()) { - return error("%s: no undo data available", __func__); - } - - // Open history file to read - CAutoFile filein(OpenUndoFile(pos, true), SER_DISK, CLIENT_VERSION); - if (filein.IsNull()) - return error("%s: OpenUndoFile failed", __func__); - - // Read block - uint256 hashChecksum; - CHashVerifier<CAutoFile> verifier(&filein); // We need a CHashVerifier as reserializing may lose data - try { - verifier << pindex->pprev->GetBlockHash(); - verifier >> blockundo; - filein >> hashChecksum; - } - catch (const std::exception& e) { - return error("%s: Deserialize or I/O error - %s", __func__, e.what()); - } - - // Verify checksum - if (hashChecksum != verifier.GetHash()) - return error("%s: Checksum mismatch", __func__); - - return true; -} - -/** Abort with a message */ -static bool AbortNode(const std::string& strMessage, bilingual_str user_message = bilingual_str()) -{ - SetMiscWarning(Untranslated(strMessage)); - LogPrintf("*** %s\n", strMessage); - if (user_message.empty()) { - user_message = _("A fatal internal error occurred, see debug.log for details"); - } - AbortError(user_message); - StartShutdown(); - return false; -} - -static bool AbortNode(BlockValidationState& state, const std::string& strMessage, const bilingual_str& userMessage = bilingual_str()) +bool AbortNode(BlockValidationState& state, const std::string& strMessage, const bilingual_str& userMessage) { AbortNode(strMessage, userMessage); return state.Error(strMessage); @@ -1748,55 +1545,6 @@ DisconnectResult CChainState::DisconnectBlock(const CBlock& block, const CBlockI return fClean ? DISCONNECT_OK : DISCONNECT_UNCLEAN; } -static void FlushUndoFile(int block_file, bool finalize = false) -{ - FlatFilePos undo_pos_old(block_file, vinfoBlockFile[block_file].nUndoSize); - if (!UndoFileSeq().Flush(undo_pos_old, finalize)) { - AbortNode("Flushing undo file to disk failed. This is likely the result of an I/O error."); - } -} - -static void FlushBlockFile(bool fFinalize = false, bool finalize_undo = false) -{ - LOCK(cs_LastBlockFile); - FlatFilePos block_pos_old(nLastBlockFile, vinfoBlockFile[nLastBlockFile].nSize); - if (!BlockFileSeq().Flush(block_pos_old, fFinalize)) { - AbortNode("Flushing block file to disk failed. This is likely the result of an I/O error."); - } - // we do not always flush the undo file, as the chain tip may be lagging behind the incoming blocks, - // e.g. during IBD or a sync after a node going offline - if (!fFinalize || finalize_undo) FlushUndoFile(nLastBlockFile, finalize_undo); -} - -static bool FindUndoPos(BlockValidationState &state, int nFile, FlatFilePos &pos, unsigned int nAddSize); - -static bool WriteUndoDataForBlock(const CBlockUndo& blockundo, BlockValidationState& state, CBlockIndex* pindex, const CChainParams& chainparams) -{ - // Write undo information to disk - if (pindex->GetUndoPos().IsNull()) { - FlatFilePos _pos; - if (!FindUndoPos(state, pindex->nFile, _pos, ::GetSerializeSize(blockundo, CLIENT_VERSION) + 40)) - return error("ConnectBlock(): FindUndoPos failed"); - if (!UndoWriteToDisk(blockundo, _pos, pindex->pprev->GetBlockHash(), chainparams.MessageStart())) - return AbortNode(state, "Failed to write undo data"); - // rev files are written in block height order, whereas blk files are written as blocks come in (often out of order) - // we want to flush the rev (undo) file once we've written the last block, which is indicated by the last height - // in the block file info as below; note that this does not catch the case where the undo writes are keeping up - // with the block writes (usually when a synced up node is getting newly mined blocks) -- this case is caught in - // the FindBlockPos function - if (_pos.nFile < nLastBlockFile && static_cast<uint32_t>(pindex->nHeight) == vinfoBlockFile[_pos.nFile].nHeightLast) { - FlushUndoFile(_pos.nFile, true); - } - - // update nUndoPos in block index - pindex->nUndoPos = _pos.nPos; - pindex->nStatus |= BLOCK_HAVE_UNDO; - setDirtyBlockIndex.insert(pindex); - } - - return true; -} - static CCheckQueue<CScriptCheck> scriptcheckqueue(128); void StartScriptCheckWorkerThreads(int threads_num) @@ -2332,7 +2080,7 @@ bool CChainState::FlushStateToDisk( // Write blocks and block index to disk. if (fDoFullFlush || fPeriodicWrite) { // Depend on nMinDiskSpace to ensure we can write block index - if (!CheckDiskSpace(GetBlocksDir())) { + if (!CheckDiskSpace(gArgs.GetBlocksDirPath())) { return AbortNode(state, "Disk space is too low!", _("Disk space is too low!")); } { @@ -2380,7 +2128,7 @@ bool CChainState::FlushStateToDisk( // twice (once in the log, and once in the tables). This is already // an overestimation, as most will delete an existing entry or // overwrite one. Still, use a conservative safety factor of 2. - if (!CheckDiskSpace(GetDataDir(), 48 * 2 * 2 * CoinsTip().GetCacheSize())) { + if (!CheckDiskSpace(gArgs.GetDataDirNet(), 48 * 2 * 2 * CoinsTip().GetCacheSize())) { return AbortNode(state, "Disk space is too low!", _("Disk space is too low!")); } // Flush the chainstate (which may refer to block index entries). @@ -3230,83 +2978,6 @@ void CChainState::ReceivedBlockTransactions(const CBlock& block, CBlockIndex* pi } } -static bool FindBlockPos(FlatFilePos &pos, unsigned int nAddSize, unsigned int nHeight, CChain& active_chain, uint64_t nTime, bool fKnown = false) -{ - LOCK(cs_LastBlockFile); - - unsigned int nFile = fKnown ? pos.nFile : nLastBlockFile; - if (vinfoBlockFile.size() <= nFile) { - vinfoBlockFile.resize(nFile + 1); - } - - bool finalize_undo = false; - if (!fKnown) { - while (vinfoBlockFile[nFile].nSize + nAddSize >= (gArgs.GetBoolArg("-fastprune", false) ? 0x10000 /* 64kb */ : MAX_BLOCKFILE_SIZE)) { - // when the undo file is keeping up with the block file, we want to flush it explicitly - // when it is lagging behind (more blocks arrive than are being connected), we let the - // undo block write case handle it - assert(std::addressof(::ChainActive()) == std::addressof(active_chain)); - finalize_undo = (vinfoBlockFile[nFile].nHeightLast == (unsigned int)active_chain.Tip()->nHeight); - nFile++; - if (vinfoBlockFile.size() <= nFile) { - vinfoBlockFile.resize(nFile + 1); - } - } - pos.nFile = nFile; - pos.nPos = vinfoBlockFile[nFile].nSize; - } - - if ((int)nFile != nLastBlockFile) { - if (!fKnown) { - LogPrint(BCLog::VALIDATION, "Leaving block file %i: %s\n", nLastBlockFile, vinfoBlockFile[nLastBlockFile].ToString()); - } - FlushBlockFile(!fKnown, finalize_undo); - nLastBlockFile = nFile; - } - - vinfoBlockFile[nFile].AddBlock(nHeight, nTime); - if (fKnown) - vinfoBlockFile[nFile].nSize = std::max(pos.nPos + nAddSize, vinfoBlockFile[nFile].nSize); - else - vinfoBlockFile[nFile].nSize += nAddSize; - - if (!fKnown) { - bool out_of_space; - size_t bytes_allocated = BlockFileSeq().Allocate(pos, nAddSize, out_of_space); - if (out_of_space) { - return AbortNode("Disk space is too low!", _("Disk space is too low!")); - } - if (bytes_allocated != 0 && fPruneMode) { - fCheckForPruning = true; - } - } - - setDirtyFileInfo.insert(nFile); - return true; -} - -static bool FindUndoPos(BlockValidationState &state, int nFile, FlatFilePos &pos, unsigned int nAddSize) -{ - pos.nFile = nFile; - - LOCK(cs_LastBlockFile); - - pos.nPos = vinfoBlockFile[nFile].nUndoSize; - vinfoBlockFile[nFile].nUndoSize += nAddSize; - setDirtyFileInfo.insert(nFile); - - bool out_of_space; - size_t bytes_allocated = UndoFileSeq().Allocate(pos, nAddSize, out_of_space); - if (out_of_space) { - return AbortNode(state, "Disk space is too low!", _("Disk space is too low!")); - } - if (bytes_allocated != 0 && fPruneMode) { - fCheckForPruning = true; - } - - return true; -} - static bool CheckBlockHeader(const CBlockHeader& block, BlockValidationState& state, const Consensus::Params& consensusParams, bool fCheckPOW = true) { // Check proof of work matches claimed amount @@ -3708,25 +3379,6 @@ bool ChainstateManager::ProcessNewBlockHeaders(const std::vector<CBlockHeader>& } /** Store block on disk. If dbp is non-nullptr, the file is known to already reside on disk */ -static FlatFilePos SaveBlockToDisk(const CBlock& block, int nHeight, CChain& active_chain, const CChainParams& chainparams, const FlatFilePos* dbp) { - unsigned int nBlockSize = ::GetSerializeSize(block, CLIENT_VERSION); - FlatFilePos blockPos; - if (dbp != nullptr) - blockPos = *dbp; - if (!FindBlockPos(blockPos, nBlockSize+8, nHeight, active_chain, block.GetBlockTime(), dbp != nullptr)) { - error("%s: FindBlockPos failed", __func__); - return FlatFilePos(); - } - if (dbp == nullptr) { - if (!WriteBlockToDisk(block, blockPos, chainparams.MessageStart())) { - AbortNode("Failed to write block"); - return FlatFilePos(); - } - } - return blockPos; -} - -/** Store block on disk. If dbp is non-nullptr, the file is known to already reside on disk */ bool CChainState::AcceptBlock(const std::shared_ptr<const CBlock>& pblock, BlockValidationState& state, const CChainParams& chainparams, CBlockIndex** ppindex, bool fRequested, const FlatFilePos* dbp, bool* fNewBlock) { const CBlock& block = *pblock; @@ -3883,18 +3535,6 @@ bool TestBlockValidity(BlockValidationState& state, * BLOCK PRUNING CODE */ -/* Calculate the amount of disk space the block & undo files currently use */ -uint64_t CalculateCurrentUsage() -{ - LOCK(cs_LastBlockFile); - - uint64_t retval = 0; - for (const CBlockFileInfo &file : vinfoBlockFile) { - retval += file.nSize + file.nUndoSize; - } - return retval; -} - void BlockManager::PruneOneBlockFile(const int fileNumber) { AssertLockHeld(cs_main); @@ -3929,17 +3569,6 @@ void BlockManager::PruneOneBlockFile(const int fileNumber) setDirtyFileInfo.insert(fileNumber); } - -void UnlinkPrunedFiles(const std::set<int>& setFilesToPrune) -{ - for (std::set<int>::iterator it = setFilesToPrune.begin(); it != setFilesToPrune.end(); ++it) { - FlatFilePos pos(*it, 0); - fs::remove(BlockFileSeq().FileName(pos)); - fs::remove(UndoFileSeq().FileName(pos)); - LogPrintf("Prune: %s deleted blk/rev (%05u)\n", __func__, *it); - } -} - void BlockManager::FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight, int chain_tip_height) { assert(fPruneMode && nManualPruneHeight > 0); @@ -4034,30 +3663,6 @@ void BlockManager::FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPr nLastBlockWeCanPrune, count); } -static FlatFileSeq BlockFileSeq() -{ - return FlatFileSeq(GetBlocksDir(), "blk", gArgs.GetBoolArg("-fastprune", false) ? 0x4000 /* 16kb */ : BLOCKFILE_CHUNK_SIZE); -} - -static FlatFileSeq UndoFileSeq() -{ - return FlatFileSeq(GetBlocksDir(), "rev", UNDOFILE_CHUNK_SIZE); -} - -FILE* OpenBlockFile(const FlatFilePos &pos, bool fReadOnly) { - return BlockFileSeq().Open(pos, fReadOnly); -} - -/** Open an undo file (rev?????.dat) */ -static FILE* OpenUndoFile(const FlatFilePos &pos, bool fReadOnly) { - return UndoFileSeq().Open(pos, fReadOnly); -} - -fs::path GetBlockPosFilename(const FlatFilePos &pos) -{ - return BlockFileSeq().FileName(pos); -} - CBlockIndex * BlockManager::InsertBlockIndex(const uint256& hash) { AssertLockHeld(cs_main); @@ -4239,7 +3844,7 @@ bool CChainState::LoadChainTip(const CChainParams& chainparams) CVerifyDB::CVerifyDB() { - uiInterface.ShowProgress(_("Verifying blocks...").translated, 0, false); + uiInterface.ShowProgress(_("Verifying blocks…").translated, 0, false); } CVerifyDB::~CVerifyDB() @@ -4247,38 +3852,46 @@ CVerifyDB::~CVerifyDB() uiInterface.ShowProgress("", 100, false); } -bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CChainState& active_chainstate, CCoinsView *coinsview, int nCheckLevel, int nCheckDepth) +bool CVerifyDB::VerifyDB( + CChainState& chainstate, + const CChainParams& chainparams, + CCoinsView& coinsview, + int nCheckLevel, int nCheckDepth) { AssertLockHeld(cs_main); - assert(std::addressof(::ChainstateActive()) == std::addressof(active_chainstate)); - if (active_chainstate.m_chain.Tip() == nullptr || active_chainstate.m_chain.Tip()->pprev == nullptr) + assert(std::addressof(::ChainstateActive()) == std::addressof(chainstate)); + if (chainstate.m_chain.Tip() == nullptr || chainstate.m_chain.Tip()->pprev == nullptr) return true; // Verify blocks in the best chain - if (nCheckDepth <= 0 || nCheckDepth > active_chainstate.m_chain.Height()) - nCheckDepth = active_chainstate.m_chain.Height(); + if (nCheckDepth <= 0 || nCheckDepth > chainstate.m_chain.Height()) + nCheckDepth = chainstate.m_chain.Height(); nCheckLevel = std::max(0, std::min(4, nCheckLevel)); LogPrintf("Verifying last %i blocks at level %i\n", nCheckDepth, nCheckLevel); - CCoinsViewCache coins(coinsview); + CCoinsViewCache coins(&coinsview); CBlockIndex* pindex; CBlockIndex* pindexFailure = nullptr; int nGoodTransactions = 0; BlockValidationState state; int reportDone = 0; LogPrintf("[0%%]..."); /* Continued */ - for (pindex = active_chainstate.m_chain.Tip(); pindex && pindex->pprev; pindex = pindex->pprev) { - const int percentageDone = std::max(1, std::min(99, (int)(((double)(active_chainstate.m_chain.Height() - pindex->nHeight)) / (double)nCheckDepth * (nCheckLevel >= 4 ? 50 : 100)))); + + const bool is_snapshot_cs{!chainstate.m_from_snapshot_blockhash}; + + for (pindex = chainstate.m_chain.Tip(); pindex && pindex->pprev; pindex = pindex->pprev) { + const int percentageDone = std::max(1, std::min(99, (int)(((double)(chainstate.m_chain.Height() - pindex->nHeight)) / (double)nCheckDepth * (nCheckLevel >= 4 ? 50 : 100)))); if (reportDone < percentageDone/10) { // report every 10% step LogPrintf("[%d%%]...", percentageDone); /* Continued */ reportDone = percentageDone/10; } - uiInterface.ShowProgress(_("Verifying blocks...").translated, percentageDone, false); - if (pindex->nHeight <= active_chainstate.m_chain.Height()-nCheckDepth) + uiInterface.ShowProgress(_("Verifying blocks…").translated, percentageDone, false); + if (pindex->nHeight <= chainstate.m_chain.Height()-nCheckDepth) break; - if (fPruneMode && !(pindex->nStatus & BLOCK_HAVE_DATA)) { - // If pruning, only go back as far as we have data. + if ((fPruneMode || is_snapshot_cs) && !(pindex->nStatus & BLOCK_HAVE_DATA)) { + // If pruning or running under an assumeutxo snapshot, only go + // back as far as we have data. LogPrintf("VerifyDB(): block verification stopping at height %d (pruning, no data)\n", pindex->nHeight); break; } @@ -4300,9 +3913,11 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CChainState& active_ch } } // check level 3: check for inconsistencies during memory-only disconnect of tip blocks - if (nCheckLevel >= 3 && (coins.DynamicMemoryUsage() + active_chainstate.CoinsTip().DynamicMemoryUsage()) <= active_chainstate.m_coinstip_cache_size_bytes) { + size_t curr_coins_usage = coins.DynamicMemoryUsage() + chainstate.CoinsTip().DynamicMemoryUsage(); + + if (nCheckLevel >= 3 && curr_coins_usage <= chainstate.m_coinstip_cache_size_bytes) { assert(coins.GetBestBlock() == pindex->GetBlockHash()); - DisconnectResult res = active_chainstate.DisconnectBlock(block, pindex, coins); + DisconnectResult res = chainstate.DisconnectBlock(block, pindex, coins); if (res == DISCONNECT_FAILED) { return error("VerifyDB(): *** irrecoverable inconsistency in block data at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString()); } @@ -4316,26 +3931,26 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CChainState& active_ch if (ShutdownRequested()) return true; } if (pindexFailure) - return error("VerifyDB(): *** coin database inconsistencies found (last %i blocks, %i good transactions before that)\n", active_chainstate.m_chain.Height() - pindexFailure->nHeight + 1, nGoodTransactions); + return error("VerifyDB(): *** coin database inconsistencies found (last %i blocks, %i good transactions before that)\n", chainstate.m_chain.Height() - pindexFailure->nHeight + 1, nGoodTransactions); // store block count as we move pindex at check level >= 4 - int block_count = active_chainstate.m_chain.Height() - pindex->nHeight; + int block_count = chainstate.m_chain.Height() - pindex->nHeight; // check level 4: try reconnecting blocks if (nCheckLevel >= 4) { - while (pindex != active_chainstate.m_chain.Tip()) { - const int percentageDone = std::max(1, std::min(99, 100 - (int)(((double)(active_chainstate.m_chain.Height() - pindex->nHeight)) / (double)nCheckDepth * 50))); + while (pindex != chainstate.m_chain.Tip()) { + const int percentageDone = std::max(1, std::min(99, 100 - (int)(((double)(chainstate.m_chain.Height() - pindex->nHeight)) / (double)nCheckDepth * 50))); if (reportDone < percentageDone/10) { // report every 10% step LogPrintf("[%d%%]...", percentageDone); /* Continued */ reportDone = percentageDone/10; } - uiInterface.ShowProgress(_("Verifying blocks...").translated, percentageDone, false); - pindex = active_chainstate.m_chain.Next(pindex); + uiInterface.ShowProgress(_("Verifying blocks…").translated, percentageDone, false); + pindex = chainstate.m_chain.Next(pindex); CBlock block; if (!ReadBlockFromDisk(block, pindex, chainparams.GetConsensus())) return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString()); - if (!active_chainstate.ConnectBlock(block, state, pindex, coins, chainparams)) + if (!chainstate.ConnectBlock(block, state, pindex, coins, chainparams)) return error("VerifyDB(): *** found unconnectable block at %d, hash=%s (%s)", pindex->nHeight, pindex->GetBlockHash().ToString(), state.ToString()); if (ShutdownRequested()) return true; } @@ -4379,7 +3994,7 @@ bool CChainState::ReplayBlocks(const CChainParams& params) if (hashHeads.empty()) return true; // We're already in a consistent state. if (hashHeads.size() != 2) return error("ReplayBlocks(): unknown inconsistent state"); - uiInterface.ShowProgress(_("Replaying blocks...").translated, 0, false); + uiInterface.ShowProgress(_("Replaying blocks…").translated, 0, false); LogPrintf("Replaying blocks\n"); const CBlockIndex* pindexOld = nullptr; // Old tip during the interrupted flush. @@ -4425,7 +4040,7 @@ bool CChainState::ReplayBlocks(const CChainParams& params) for (int nHeight = nForkHeight + 1; nHeight <= pindexNew->nHeight; ++nHeight) { const CBlockIndex* pindex = pindexNew->GetAncestor(nHeight); LogPrintf("Rolling forward %s (%i)\n", pindex->GetBlockHash().ToString(), nHeight); - uiInterface.ShowProgress(_("Replaying blocks...").translated, (int) ((nHeight - nForkHeight) * 100.0 / (pindexNew->nHeight - nForkHeight)) , false); + uiInterface.ShowProgress(_("Replaying blocks…").translated, (int) ((nHeight - nForkHeight) * 100.0 / (pindexNew->nHeight - nForkHeight)) , false); if (!RollforwardBlock(pindex, cache, params)) return false; } @@ -4435,143 +4050,23 @@ bool CChainState::ReplayBlocks(const CChainParams& params) return true; } -//! Helper for CChainState::RewindBlockIndex -void CChainState::EraseBlockData(CBlockIndex* index) +bool CChainState::NeedsRedownload(const CChainParams& params) const { AssertLockHeld(cs_main); - assert(!m_chain.Contains(index)); // Make sure this block isn't active - - // Reduce validity - index->nStatus = std::min<unsigned int>(index->nStatus & BLOCK_VALID_MASK, BLOCK_VALID_TREE) | (index->nStatus & ~BLOCK_VALID_MASK); - // Remove have-data flags. - index->nStatus &= ~(BLOCK_HAVE_DATA | BLOCK_HAVE_UNDO); - // Remove storage location. - index->nFile = 0; - index->nDataPos = 0; - index->nUndoPos = 0; - // Remove various other things - index->nTx = 0; - index->nChainTx = 0; - index->nSequenceId = 0; - // Make sure it gets written. - setDirtyBlockIndex.insert(index); - // Update indexes - setBlockIndexCandidates.erase(index); - auto ret = m_blockman.m_blocks_unlinked.equal_range(index->pprev); - while (ret.first != ret.second) { - if (ret.first->second == index) { - m_blockman.m_blocks_unlinked.erase(ret.first++); - } else { - ++ret.first; - } - } - // Mark parent as eligible for main chain again - if (index->pprev && index->pprev->IsValid(BLOCK_VALID_TRANSACTIONS) && index->pprev->HaveTxsDownloaded()) { - setBlockIndexCandidates.insert(index->pprev); - } -} - -bool CChainState::RewindBlockIndex(const CChainParams& params) -{ - // Note that during -reindex-chainstate we are called with an empty m_chain! - - // First erase all post-segwit blocks without witness not in the main chain, - // as this can we done without costly DisconnectTip calls. Active - // blocks will be dealt with below (releasing cs_main in between). - { - LOCK(cs_main); - for (const auto& entry : m_blockman.m_block_index) { - if (IsWitnessEnabled(entry.second->pprev, params.GetConsensus()) && !(entry.second->nStatus & BLOCK_OPT_WITNESS) && !m_chain.Contains(entry.second)) { - EraseBlockData(entry.second); - } - } - } - - // Find what height we need to reorganize to. - CBlockIndex *tip; - int nHeight = 1; - { - LOCK(cs_main); - while (nHeight <= m_chain.Height()) { - // Although SCRIPT_VERIFY_WITNESS is now generally enforced on all - // blocks in ConnectBlock, we don't need to go back and - // re-download/re-verify blocks from before segwit actually activated. - if (IsWitnessEnabled(m_chain[nHeight - 1], params.GetConsensus()) && !(m_chain[nHeight]->nStatus & BLOCK_OPT_WITNESS)) { - break; - } - nHeight++; - } - - tip = m_chain.Tip(); - } - // nHeight is now the height of the first insufficiently-validated block, or tipheight + 1 - - BlockValidationState state; - // Loop until the tip is below nHeight, or we reach a pruned block. - while (!ShutdownRequested()) { - { - LOCK(cs_main); - LOCK(m_mempool.cs); - // Make sure nothing changed from under us (this won't happen because RewindBlockIndex runs before importing/network are active) - assert(tip == m_chain.Tip()); - if (tip == nullptr || tip->nHeight < nHeight) break; - if (fPruneMode && !(tip->nStatus & BLOCK_HAVE_DATA)) { - // If pruning, don't try rewinding past the HAVE_DATA point; - // since older blocks can't be served anyway, there's - // no need to walk further, and trying to DisconnectTip() - // will fail (and require a needless reindex/redownload - // of the blockchain). - break; - } - // Disconnect block - if (!DisconnectTip(state, params, nullptr)) { - return error("RewindBlockIndex: unable to disconnect block at height %i (%s)", tip->nHeight, state.ToString()); - } - - // Reduce validity flag and have-data flags. - // We do this after actual disconnecting, otherwise we'll end up writing the lack of data - // to disk before writing the chainstate, resulting in a failure to continue if interrupted. - // Note: If we encounter an insufficiently validated block that - // is on m_chain, it must be because we are a pruning node, and - // this block or some successor doesn't HAVE_DATA, so we were unable to - // rewind all the way. Blocks remaining on m_chain at this point - // must not have their validity reduced. - EraseBlockData(tip); - - tip = tip->pprev; - } - // Make sure the queue of validation callbacks doesn't grow unboundedly. - LimitValidationInterfaceQueue(); - - // Occasionally flush state to disk. - if (!FlushStateToDisk(params, state, FlushStateMode::PERIODIC)) { - LogPrintf("RewindBlockIndex: unable to flush state to disk (%s)\n", state.ToString()); - return false; - } - } - - { - LOCK(cs_main); - if (m_chain.Tip() != nullptr) { - // We can't prune block index candidates based on our tip if we have - // no tip due to m_chain being empty! - PruneBlockIndexCandidates(); - - CheckBlockIndex(params.GetConsensus()); + // At and above params.SegwitHeight, segwit consensus rules must be validated + CBlockIndex* block{m_chain.Tip()}; + const int segwit_height{params.GetConsensus().SegwitHeight}; - // FlushStateToDisk can possibly read ::ChainActive(). Be conservative - // and skip it here, we're about to -reindex-chainstate anyway, so - // it'll get called a bunch real soon. - BlockValidationState state; - if (!FlushStateToDisk(params, state, FlushStateMode::ALWAYS)) { - LogPrintf("RewindBlockIndex: unable to flush state to disk (%s)\n", state.ToString()); - return false; - } + while (block != nullptr && block->nHeight >= segwit_height) { + if (!(block->nStatus & BLOCK_OPT_WITNESS)) { + // block is insufficiently validated for a segwit client + return true; } + block = block->pprev; } - return true; + return false; } void CChainState::UnloadBlockIndex() { @@ -4963,8 +4458,8 @@ std::string CChainState::ToString() { CBlockIndex* tip = m_chain.Tip(); return strprintf("Chainstate [%s] @ height %d (%s)", - m_from_snapshot_blockhash.IsNull() ? "ibd" : "snapshot", - tip ? tip->nHeight : -1, tip ? tip->GetBlockHash().ToString() : "null"); + m_from_snapshot_blockhash ? "snapshot" : "ibd", + tip ? tip->nHeight : -1, tip ? tip->GetBlockHash().ToString() : "null"); } bool CChainState::ResizeCoinsCaches(size_t coinstip_size, size_t coinsdb_size) @@ -5000,25 +4495,13 @@ bool CChainState::ResizeCoinsCaches(size_t coinstip_size, size_t coinsdb_size) return ret; } -std::string CBlockFileInfo::ToString() const -{ - return strprintf("CBlockFileInfo(blocks=%u, size=%u, heights=%u...%u, time=%s...%s)", nBlocks, nSize, nHeightFirst, nHeightLast, FormatISO8601Date(nTimeFirst), FormatISO8601Date(nTimeLast)); -} - -CBlockFileInfo* GetBlockFileInfo(size_t n) -{ - LOCK(cs_LastBlockFile); - - return &vinfoBlockFile.at(n); -} - static const uint64_t MEMPOOL_DUMP_VERSION = 1; bool LoadMempool(CTxMemPool& pool, CChainState& active_chainstate, FopenFn mockable_fopen_function) { const CChainParams& chainparams = Params(); int64_t nExpiryTimeout = gArgs.GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60; - FILE* filestr{mockable_fopen_function(GetDataDir() / "mempool.dat", "rb")}; + FILE* filestr{mockable_fopen_function(gArgs.GetDataDirNet() / "mempool.dat", "rb")}; CAutoFile file(filestr, SER_DISK, CLIENT_VERSION); if (file.IsNull()) { LogPrintf("Failed to open mempool file from disk. Continuing anyway.\n"); @@ -5122,7 +4605,7 @@ bool DumpMempool(const CTxMemPool& pool, FopenFn mockable_fopen_function, bool s int64_t mid = GetTimeMicros(); try { - FILE* filestr{mockable_fopen_function(GetDataDir() / "mempool.dat.new", "wb")}; + FILE* filestr{mockable_fopen_function(gArgs.GetDataDirNet() / "mempool.dat.new", "wb")}; if (!filestr) { return false; } @@ -5148,7 +4631,7 @@ bool DumpMempool(const CTxMemPool& pool, FopenFn mockable_fopen_function, bool s if (!skip_file_commit && !FileCommit(file.Get())) throw std::runtime_error("FileCommit failed"); file.fclose(); - if (!RenameOver(GetDataDir() / "mempool.dat.new", GetDataDir() / "mempool.dat")) { + if (!RenameOver(gArgs.GetDataDirNet() / "mempool.dat.new", gArgs.GetDataDirNet() / "mempool.dat")) { throw std::runtime_error("Rename failed"); } int64_t last = GetTimeMicros(); @@ -5179,10 +4662,10 @@ double GuessVerificationProgress(const ChainTxData& data, const CBlockIndex *pin return std::min<double>(pindex->nChainTx / fTxTotal, 1.0); } -std::optional<uint256> ChainstateManager::SnapshotBlockhash() const { +std::optional<uint256> ChainstateManager::SnapshotBlockhash() const +{ LOCK(::cs_main); - if (m_active_chainstate != nullptr && - !m_active_chainstate->m_from_snapshot_blockhash.IsNull()) { + if (m_active_chainstate && m_active_chainstate->m_from_snapshot_blockhash) { // If a snapshot chainstate exists, it will always be our active. return m_active_chainstate->m_from_snapshot_blockhash; } @@ -5205,9 +4688,9 @@ std::vector<CChainState*> ChainstateManager::GetAll() return out; } -CChainState& ChainstateManager::InitializeChainstate(CTxMemPool& mempool, const uint256& snapshot_blockhash) +CChainState& ChainstateManager::InitializeChainstate(CTxMemPool& mempool, const std::optional<uint256>& snapshot_blockhash) { - bool is_snapshot = !snapshot_blockhash.IsNull(); + bool is_snapshot = snapshot_blockhash.has_value(); std::unique_ptr<CChainState>& to_modify = is_snapshot ? m_snapshot_chainstate : m_ibd_chainstate; @@ -5332,6 +4815,26 @@ bool ChainstateManager::PopulateAndValidateSnapshot( uint256 base_blockhash = metadata.m_base_blockhash; + CBlockIndex* snapshot_start_block = WITH_LOCK(::cs_main, return m_blockman.LookupBlockIndex(base_blockhash)); + + if (!snapshot_start_block) { + // Needed for GetUTXOStats and ExpectedAssumeutxo to determine the height and to avoid a crash when base_blockhash.IsNull() + LogPrintf("[snapshot] Did not find snapshot start blockheader %s\n", + base_blockhash.ToString()); + return false; + } + + int base_height = snapshot_start_block->nHeight; + auto maybe_au_data = ExpectedAssumeutxo(base_height, ::Params()); + + if (!maybe_au_data) { + LogPrintf("[snapshot] assumeutxo height in snapshot metadata not recognized " /* Continued */ + "(%d) - refusing to load snapshot\n", base_height); + return false; + } + + const AssumeutxoData& au_data = *maybe_au_data; + COutPoint outpoint; Coin coin; const uint64_t coins_count = metadata.m_coins_count; @@ -5344,12 +4847,12 @@ bool ChainstateManager::PopulateAndValidateSnapshot( while (coins_left > 0) { try { coins_file >> outpoint; + coins_file >> coin; } catch (const std::ios_base::failure&) { - LogPrintf("[snapshot] bad snapshot - no coins left after deserializing %d coins\n", - coins_count - coins_left); + LogPrintf("[snapshot] bad snapshot format or truncated snapshot after deserializing %d coins\n", + coins_count - coins_left); return false; } - coins_file >> coin; coins_cache.EmplaceCoinInternalDANGER(std::move(outpoint), std::move(coin)); --coins_left; @@ -5422,57 +4925,20 @@ bool ChainstateManager::PopulateAndValidateSnapshot( assert(coins_cache.GetBestBlock() == base_blockhash); - CCoinsStats stats; + CCoinsStats stats{CoinStatsHashType::HASH_SERIALIZED}; auto breakpoint_fnc = [] { /* TODO insert breakpoint here? */ }; // As above, okay to immediately release cs_main here since no other context knows // about the snapshot_chainstate. CCoinsViewDB* snapshot_coinsdb = WITH_LOCK(::cs_main, return &snapshot_chainstate.CoinsDB()); - if (!GetUTXOStats(snapshot_coinsdb, WITH_LOCK(::cs_main, return std::ref(m_blockman)), stats, CoinStatsHashType::HASH_SERIALIZED, breakpoint_fnc)) { + if (!GetUTXOStats(snapshot_coinsdb, WITH_LOCK(::cs_main, return std::ref(m_blockman)), stats, breakpoint_fnc)) { LogPrintf("[snapshot] failed to generate coins stats\n"); return false; } - // Ensure that the base blockhash appears in the known chain of valid headers. We're willing to - // wait a bit here because the snapshot may have been loaded on startup, before we've - // received headers from the network. - - int max_secs_to_wait_for_headers = 60 * 10; - CBlockIndex* snapshot_start_block = nullptr; - - while (max_secs_to_wait_for_headers > 0) { - snapshot_start_block = WITH_LOCK(::cs_main, - return m_blockman.LookupBlockIndex(base_blockhash)); - --max_secs_to_wait_for_headers; - - if (!snapshot_start_block) { - std::this_thread::sleep_for(std::chrono::seconds(1)); - } else { - break; - } - } - - if (snapshot_start_block == nullptr) { - LogPrintf("[snapshot] timed out waiting for snapshot start blockheader %s\n", - base_blockhash.ToString()); - return false; - } - // Assert that the deserialized chainstate contents match the expected assumeutxo value. - - int base_height = snapshot_start_block->nHeight; - auto maybe_au_data = ExpectedAssumeutxo(base_height, ::Params()); - - if (!maybe_au_data) { - LogPrintf("[snapshot] assumeutxo height in snapshot metadata not recognized " /* Continued */ - "(%d) - refusing to load snapshot\n", base_height); - return false; - } - - const AssumeutxoData& au_data = *maybe_au_data; - - if (stats.hashSerialized != au_data.hash_serialized) { + if (AssumeutxoHash{stats.hashSerialized} != au_data.hash_serialized) { LogPrintf("[snapshot] bad snapshot content hash: expected %s, got %s\n", au_data.hash_serialized.ToString(), stats.hashSerialized.ToString()); return false; @@ -5508,7 +4974,7 @@ bool ChainstateManager::PopulateAndValidateSnapshot( } assert(index); - index->nChainTx = metadata.m_nchaintx; + index->nChainTx = au_data.nChainTx; snapshot_chainstate.setBlockIndexCandidates.insert(snapshot_start_block); LogPrintf("[snapshot] validated snapshot (%.2f MB)\n", |