diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 112 |
1 files changed, 48 insertions, 64 deletions
diff --git a/src/main.cpp b/src/main.cpp index 73fbe53af..3a07190a6 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -74,7 +74,6 @@ bool fHavePruned = false; bool fPruneMode = false; bool fIsBareMultisigStd = DEFAULT_PERMIT_BAREMULTISIG; bool fRequireStandard = true; -unsigned int nBytesPerSigOp = DEFAULT_BYTES_PER_SIGOP; bool fCheckBlockIndex = false; bool fCheckpointsEnabled = DEFAULT_CHECKPOINTS_ENABLED; size_t nCoinCacheUsage = 5000 * 300; @@ -107,11 +106,6 @@ map<uint256, COrphanTx> mapOrphanTransactions GUARDED_BY(cs_main); map<COutPoint, set<map<uint256, COrphanTx>::iterator, IteratorComparator>> mapOrphanTransactionsByPrev GUARDED_BY(cs_main); void EraseOrphansFor(NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(cs_main); -/** - * Returns true if there are nRequired or more blocks of minVersion or above - * in the last Consensus::Params::nMajorityWindow blocks, starting at pstart and going backwards. - */ -static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams); static void CheckBlockIndex(const Consensus::Params& consensusParams); /** Constant stuff for coinbase transactions we create: */ @@ -694,8 +688,8 @@ bool AddOrphanTx(const CTransaction& tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(c // have been mined or received. // 100 orphans, each of which is at most 99,999 bytes big is // at most 10 megabytes of orphans and somewhat more byprev index (in the worst case): - unsigned int sz = GetTransactionCost(tx); - if (sz >= MAX_STANDARD_TX_COST) + unsigned int sz = GetTransactionWeight(tx); + if (sz >= MAX_STANDARD_TX_WEIGHT) { LogPrint("mempool", "ignoring large orphan tx (size: %u, hash: %s)\n", sz, hash.ToString()); return false; @@ -788,7 +782,7 @@ bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime) return true; if ((int64_t)tx.nLockTime < ((int64_t)tx.nLockTime < LOCKTIME_THRESHOLD ? (int64_t)nBlockHeight : nBlockTime)) return true; - BOOST_FOREACH(const CTxIn& txin, tx.vin) { + for (const auto& txin : tx.vin) { if (!(txin.nSequence == CTxIn::SEQUENCE_FINAL)) return false; } @@ -1002,11 +996,11 @@ bool CheckSequenceLocks(const CTransaction &tx, int flags, LockPoints* lp, bool unsigned int GetLegacySigOpCount(const CTransaction& tx) { unsigned int nSigOps = 0; - BOOST_FOREACH(const CTxIn& txin, tx.vin) + for (const auto& txin : tx.vin) { nSigOps += txin.scriptSig.GetSigOpCount(false); } - BOOST_FOREACH(const CTxOut& txout, tx.vout) + for (const auto& txout : tx.vout) { nSigOps += txout.scriptPubKey.GetSigOpCount(false); } @@ -1064,7 +1058,7 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) // Check for negative or overflow output values CAmount nValueOut = 0; - BOOST_FOREACH(const CTxOut& txout, tx.vout) + for (const auto& txout : tx.vout) { if (txout.nValue < 0) return state.DoS(100, false, REJECT_INVALID, "bad-txns-vout-negative"); @@ -1077,7 +1071,7 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) // Check for duplicate inputs set<COutPoint> vInOutPoints; - BOOST_FOREACH(const CTxIn& txin, tx.vin) + for (const auto& txin : tx.vin) { if (vInOutPoints.count(txin.prevout)) return state.DoS(100, false, REJECT_INVALID, "bad-txns-inputs-duplicate"); @@ -1091,7 +1085,7 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) } else { - BOOST_FOREACH(const CTxIn& txin, tx.vin) + for (const auto& txin : tx.vin) if (txin.prevout.IsNull()) return state.DoS(10, false, REJECT_INVALID, "bad-txns-prevout-null"); } @@ -1144,13 +1138,14 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C } // Reject transactions with witness before segregated witness activates (override with -prematurewitness) - if (!GetBoolArg("-prematurewitness",false) && !tx.wit.IsNull() && !IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus())) { + bool witnessEnabled = IsWitnessEnabled(chainActive.Tip(), Params().GetConsensus()); + if (!GetBoolArg("-prematurewitness",false) && !tx.wit.IsNull() && !witnessEnabled) { return state.DoS(0, false, REJECT_NONSTANDARD, "no-witness-yet", true); } // Rather not work on nonstandard transactions (unless -testnet/-regtest) string reason; - if (fRequireStandard && !IsStandardTx(tx, reason)) + if (fRequireStandard && !IsStandardTx(tx, reason, witnessEnabled)) return state.DoS(0, false, REJECT_NONSTANDARD, reason); // Only accept nLockTime-using transactions that can be mined in the next @@ -1296,7 +1291,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C // itself can contain sigops MAX_STANDARD_TX_SIGOPS is less than // MAX_BLOCK_SIGOPS; we still consider this an invalid rather than // merely non-standard transaction. - if ((nSigOpsCost > MAX_STANDARD_TX_SIGOPS_COST) || (nBytesPerSigOp && nSigOpsCost > nSize * WITNESS_SCALE_FACTOR / nBytesPerSigOp)) + if (nSigOpsCost > MAX_STANDARD_TX_SIGOPS_COST) return state.DoS(0, false, REJECT_NONSTANDARD, "bad-txns-too-many-sigops", false, strprintf("%d", nSigOpsCost)); @@ -2372,15 +2367,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin unsigned int flags = fStrictPayToScriptHash ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE; - // Start enforcing the DERSIG (BIP66) rules, for block.nVersion=3 blocks, - // when 75% of the network has upgraded: - if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) { + // Start enforcing the DERSIG (BIP66) rule + if (pindex->nHeight >= chainparams.GetConsensus().BIP66Height) { flags |= SCRIPT_VERIFY_DERSIG; } - // Start enforcing CHECKLOCKTIMEVERIFY, (BIP65) for block.nVersion=4 - // blocks, when 75% of the network has upgraded: - if (block.nVersion >= 4 && IsSuperMajority(4, pindex->pprev, chainparams.GetConsensus().nMajorityEnforceBlockUpgrade, chainparams.GetConsensus())) { + // Start enforcing CHECKLOCKTIMEVERIFY (BIP65) rule + if (pindex->nHeight >= chainparams.GetConsensus().BIP65Height) { flags |= SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY; } @@ -3404,13 +3397,13 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P return state.DoS(100, false, REJECT_INVALID, "bad-cb-multiple", false, "more than one coinbase"); // Check transactions - BOOST_FOREACH(const CTransaction& tx, block.vtx) + for (const auto& tx : block.vtx) if (!CheckTransaction(tx, state)) return state.Invalid(false, state.GetRejectCode(), state.GetRejectReason(), strprintf("Transaction check failed (tx hash %s) %s", tx.GetHash().ToString(), state.GetDebugMessage())); unsigned int nSigOps = 0; - BOOST_FOREACH(const CTransaction& tx, block.vtx) + for (const auto& tx : block.vtx) { nSigOps += GetLegacySigOpCount(tx); } @@ -3502,8 +3495,9 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc return commitment; } -bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, CBlockIndex * const pindexPrev, int64_t nAdjustedTime) +bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev, int64_t nAdjustedTime) { + const int nHeight = pindexPrev == NULL ? 0 : pindexPrev->nHeight + 1; // Check proof of work if (block.nBits != GetNextWorkRequired(pindexPrev, &block, consensusParams)) return state.DoS(100, false, REJECT_INVALID, "bad-diffbits", false, "incorrect proof of work"); @@ -3517,18 +3511,19 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta return state.Invalid(false, REJECT_INVALID, "time-too-new", "block timestamp too far in the future"); // Reject outdated version blocks when 95% (75% on testnet) of the network has upgraded: - for (int32_t version = 2; version < 5; ++version) // check for version 2, 3 and 4 upgrades - if (block.nVersion < version && IsSuperMajority(version, pindexPrev, consensusParams.nMajorityRejectBlockOutdated, consensusParams)) - return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(0x%08x)", version - 1), - strprintf("rejected nVersion=0x%08x block", version - 1)); + // check for version 2, 3 and 4 upgrades + if((block.nVersion < 2 && nHeight >= consensusParams.BIP34Height) || + (block.nVersion < 3 && nHeight >= consensusParams.BIP66Height) || + (block.nVersion < 4 && nHeight >= consensusParams.BIP65Height)) + return state.Invalid(false, REJECT_OBSOLETE, strprintf("bad-version(0x%08x)", block.nVersion), + strprintf("rejected nVersion=0x%08x block", block.nVersion)); return true; } -bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIndex * const pindexPrev) +bool ContextualCheckBlock(const CBlock& block, CValidationState& state, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev) { const int nHeight = pindexPrev == NULL ? 0 : pindexPrev->nHeight + 1; - const Consensus::Params& consensusParams = Params().GetConsensus(); // Start enforcing BIP113 (Median Time Past) using versionbits logic. int nLockTimeFlags = 0; @@ -3541,15 +3536,14 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn : block.GetBlockTime(); // Check that all transactions are finalized - BOOST_FOREACH(const CTransaction& tx, block.vtx) { + for (const auto& tx : block.vtx) { if (!IsFinalTx(tx, nHeight, nLockTimeCutoff)) { return state.DoS(10, false, REJECT_INVALID, "bad-txns-nonfinal", false, "non-final transaction"); } } - // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height - // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): - if (block.nVersion >= 2 && IsSuperMajority(2, pindexPrev, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams)) + // Enforce rule that the coinbase starts with serialized block height + if (nHeight >= consensusParams.BIP34Height) { CScript expect = CScript() << nHeight; if (block.vtx[0].vin[0].scriptSig.size() < expect.size() || @@ -3567,7 +3561,7 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn // {0xaa, 0x21, 0xa9, 0xed}, and the following 32 bytes are SHA256^2(witness root, witness nonce). In case there are // multiple, the last one is used. bool fHaveWitness = false; - if (IsWitnessEnabled(pindexPrev, consensusParams)) { + if (VersionBitsState(pindexPrev, consensusParams, Consensus::DEPLOYMENT_SEGWIT, versionbitscache) == THRESHOLD_ACTIVE) { int commitpos = GetWitnessCommitmentIndex(block); if (commitpos != -1) { bool malleated = false; @@ -3576,11 +3570,11 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn // already does not permit it, it is impossible to trigger in the // witness tree. if (block.vtx[0].wit.vtxinwit.size() != 1 || block.vtx[0].wit.vtxinwit[0].scriptWitness.stack.size() != 1 || block.vtx[0].wit.vtxinwit[0].scriptWitness.stack[0].size() != 32) { - return state.DoS(100, error("%s : invalid witness nonce size", __func__), REJECT_INVALID, "bad-witness-nonce-size", true); + return state.DoS(100, false, REJECT_INVALID, "bad-witness-nonce-size", true, strprintf("%s : invalid witness nonce size", __func__)); } CHash256().Write(hashWitness.begin(), 32).Write(&block.vtx[0].wit.vtxinwit[0].scriptWitness.stack[0][0], 32).Finalize(hashWitness.begin()); if (memcmp(hashWitness.begin(), &block.vtx[0].vout[commitpos].scriptPubKey[6], 32)) { - return state.DoS(100, error("%s : witness merkle commitment mismatch", __func__), REJECT_INVALID, "bad-witness-merkle-match", true); + return state.DoS(100, false, REJECT_INVALID, "bad-witness-merkle-match", true, strprintf("%s : witness merkle commitment mismatch", __func__)); } fHaveWitness = true; } @@ -3590,19 +3584,19 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn if (!fHaveWitness) { for (size_t i = 0; i < block.vtx.size(); i++) { if (!block.vtx[i].wit.IsNull()) { - return state.DoS(100, error("%s : unexpected witness data found", __func__), REJECT_INVALID, "unexpected-witness", true); + return state.DoS(100, false, REJECT_INVALID, "unexpected-witness", true, strprintf("%s : unexpected witness data found", __func__)); } } } // After the coinbase witness nonce and commitment are verified, - // we can check if the block cost passes (before we've checked the - // coinbase witness, it would be possible for the cost to be too + // we can check if the block weight passes (before we've checked the + // coinbase witness, it would be possible for the weight to be too // large by filling up the coinbase witness, which doesn't change // the block hash, so we couldn't mark the block as permanently // failed). - if (GetBlockCost(block) > MAX_BLOCK_COST) { - return state.DoS(100, error("ContextualCheckBlock(): cost limit failed"), REJECT_INVALID, "bad-blk-cost"); + if (GetBlockWeight(block) > MAX_BLOCK_WEIGHT) { + return state.DoS(100, false, REJECT_INVALID, "bad-blk-weight", false, strprintf("%s : weight limit failed", __func__)); } return true; @@ -3689,7 +3683,8 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha } if (fNewBlock) *fNewBlock = true; - if ((!CheckBlock(block, state, chainparams.GetConsensus(), GetAdjustedTime())) || !ContextualCheckBlock(block, state, pindex->pprev)) { + if (!CheckBlock(block, state, chainparams.GetConsensus(), GetAdjustedTime()) || + !ContextualCheckBlock(block, state, chainparams.GetConsensus(), pindex->pprev)) { if (state.IsInvalid() && !state.CorruptionPossible()) { pindex->nStatus |= BLOCK_FAILED_VALID; setDirtyBlockIndex.insert(pindex); @@ -3722,19 +3717,6 @@ static bool AcceptBlock(const CBlock& block, CValidationState& state, const CCha return true; } -static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned nRequired, const Consensus::Params& consensusParams) -{ - unsigned int nFound = 0; - for (int i = 0; i < consensusParams.nMajorityWindow && nFound < nRequired && pstart != NULL; i++) - { - if (pstart->nVersion >= minVersion) - ++nFound; - pstart = pstart->pprev; - } - return (nFound >= nRequired); -} - - bool ProcessNewBlock(CValidationState& state, const CChainParams& chainparams, CNode* pfrom, const CBlock* pblock, bool fForceProcessing, const CDiskBlockPos* dbp) { { @@ -3780,7 +3762,7 @@ bool TestBlockValidity(CValidationState& state, const CChainParams& chainparams, return error("%s: Consensus::ContextualCheckBlockHeader: %s", __func__, FormatStateMessage(state)); if (!CheckBlock(block, state, chainparams.GetConsensus(), fCheckPOW, fCheckMerkleRoot)) return error("%s: Consensus::CheckBlock: %s", __func__, FormatStateMessage(state)); - if (!ContextualCheckBlock(block, state, pindexPrev)) + if (!ContextualCheckBlock(block, state, chainparams.GetConsensus(), pindexPrev)) return error("%s: Consensus::ContextualCheckBlock: %s", __func__, FormatStateMessage(state)); if (!ConnectBlock(block, state, &indexDummy, viewNew, chainparams, true)) return false; @@ -4100,7 +4082,7 @@ bool CVerifyDB::VerifyDB(const CChainParams& chainparams, CCoinsView *coinsview, int nGoodTransactions = 0; CValidationState state; int reportDone = 0; - LogPrintf("[0%]..."); + LogPrintf("[0%%]..."); for (CBlockIndex* pindex = chainActive.Tip(); pindex && pindex->pprev; pindex = pindex->pprev) { boost::this_thread::interruption_point(); @@ -4331,8 +4313,6 @@ bool InitBlockIndex(const CChainParams& chainparams) CBlockIndex *pindex = AddToBlockIndex(block); if (!ReceivedBlockTransactions(block, state, pindex, blockPos)) return error("LoadBlockIndex(): genesis block not accepted"); - if (!ActivateBestChain(state, chainparams, &block)) - return error("LoadBlockIndex(): genesis block cannot be activated"); // Force a chainstate write so that when we VerifyDB in a moment, it doesn't check stale data return FlushStateToDisk(state, FLUSH_STATE_ALWAYS); } catch (const std::runtime_error& e) { @@ -5343,7 +5323,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, BlockMap::iterator it = mapBlockIndex.find(req.blockhash); if (it == mapBlockIndex.end() || !(it->second->nStatus & BLOCK_HAVE_DATA)) { - Misbehaving(pfrom->GetId(), 100); LogPrintf("Peer %d sent us a getblocktxn for a block we don't have", pfrom->id); return true; } @@ -5627,8 +5606,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, std::vector<CInv> vInv(1); vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash()); pfrom->PushMessage(NetMsgType::GETDATA, vInv); - return true; } + return true; } // If we're not close to tip yet, give up and let parallel block fetch work its magic @@ -6146,6 +6125,11 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, } } + else if (strCommand == NetMsgType::NOTFOUND) { + // We do not care about the NOTFOUND message, but logging an Unknown Command + // message would be undesirable as we transmit it ourselves. + } + else { // Ignore unknown commands for extensibility LogPrint("net", "Unknown command \"%s\" from peer=%d\n", SanitizeString(strCommand), pfrom->id); |