diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 155 |
1 files changed, 75 insertions, 80 deletions
diff --git a/src/main.cpp b/src/main.cpp index 0940260f9..4c2115688 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -719,7 +719,7 @@ bool CTxMemPool::accept(CTransaction &tx, bool fCheckInputs, // are the actual inputs available? if (!tx.HaveInputs(view)) return error("CTxMemPool::accept() : inputs already spent"); - + // Bring the best block into scope view.GetBestBlock(); @@ -771,7 +771,7 @@ bool CTxMemPool::accept(CTransaction &tx, bool fCheckInputs, // Check against previous transactions // This is done last to help prevent CPU exhaustion denial-of-service attacks. - if (!tx.CheckInputs(view, CS_ALWAYS, true, false)) + if (!tx.CheckInputs(view, CS_ALWAYS, SCRIPT_VERIFY_P2SH)) { return error("CTxMemPool::accept() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str()); } @@ -998,21 +998,16 @@ CBlockIndex* FindBlockByHeight(int nHeight) return pblockindex; } -bool CBlock::ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions) +bool CBlock::ReadFromDisk(const CBlockIndex* pindex) { - if (!fReadTransactions) - { - *this = pindex->GetBlockHeader(); - return true; - } - if (!ReadFromDisk(pindex->GetBlockPos(), fReadTransactions)) + if (!ReadFromDisk(pindex->GetBlockPos())) return false; if (GetHash() != pindex->GetBlockHash()) return error("CBlock::ReadFromDisk() : GetHash() doesn't match index"); return true; } -uint256 static GetOrphanRoot(const CBlock* pblock) +uint256 static GetOrphanRoot(const CBlockHeader* pblock) { // Work back to the first block in the orphan chain while (mapOrphanBlocks.count(pblock->hashPrevBlock)) @@ -1059,7 +1054,7 @@ unsigned int ComputeMinWork(unsigned int nBase, int64 nTime) return bnResult.GetCompact(); } -unsigned int static GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlock *pblock) +unsigned int static GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock) { unsigned int nProofOfWorkLimit = bnProofOfWorkLimit.GetCompact(); @@ -1168,11 +1163,11 @@ void static InvalidChainFound(CBlockIndex* pindexNew) uiInterface.NotifyBlocksChanged(); } printf("InvalidChainFound: invalid block=%s height=%d work=%s date=%s\n", - pindexNew->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->nHeight, + BlockHashStr(pindexNew->GetBlockHash()).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str(), DateTimeStrFormat("%x %H:%M:%S", pindexNew->GetBlockTime()).c_str()); printf("InvalidChainFound: current best=%s height=%d work=%s date=%s\n", - hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str(), + BlockHashStr(hashBestChain).c_str(), nBestHeight, bnBestChainWork.ToString().c_str(), DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str()); if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6) printf("InvalidChainFound: Warning: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n"); @@ -1198,7 +1193,7 @@ bool ConnectBestBlock() { pindexNewBest = *it; } - if (pindexNewBest == pindexBest) + if (pindexNewBest == pindexBest || (pindexBest && pindexNewBest->bnChainWork == pindexBest->bnChainWork)) return true; // nothing to do // check ancestry @@ -1233,7 +1228,7 @@ bool ConnectBestBlock() { } while(true); } -void CBlock::UpdateTime(const CBlockIndex* pindexPrev) +void CBlockHeader::UpdateTime(const CBlockIndex* pindexPrev) { nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); @@ -1327,7 +1322,7 @@ bool CTransaction::HaveInputs(CCoinsViewCache &inputs) const return true; } -bool CTransaction::CheckInputs(CCoinsViewCache &inputs, enum CheckSig_mode csmode, bool fStrictPayToScriptHash, bool fStrictEncodings) const +bool CTransaction::CheckInputs(CCoinsViewCache &inputs, enum CheckSig_mode csmode, unsigned int flags) const { if (!IsCoinBase()) { @@ -1338,7 +1333,7 @@ bool CTransaction::CheckInputs(CCoinsViewCache &inputs, enum CheckSig_mode csmod // While checking, GetBestBlock() refers to the parent block. // This is also true for mempool checks. - int nSpendHeight = inputs.GetBestBlock()->nHeight + 1; + int nSpendHeight = inputs.GetBestBlock()->nHeight + 1; int64 nValueIn = 0; int64 nFees = 0; for (unsigned int i = 0; i < vin.size(); i++) @@ -1384,7 +1379,7 @@ bool CTransaction::CheckInputs(CCoinsViewCache &inputs, enum CheckSig_mode csmod const CCoins &coins = inputs.GetCoins(prevout.hash); // Verify signature - if (!VerifySignature(coins, *this, i, fStrictPayToScriptHash, fStrictEncodings, 0)) + if (!VerifySignature(coins, *this, i, flags, 0)) return DoS(100,error("CheckInputs() : %s VerifySignature failed", GetHash().ToString().substr(0,10).c_str())); } } @@ -1415,7 +1410,7 @@ bool CTransaction::ClientCheckInputs() const return false; // Verify signature - if (!VerifySignature(CCoins(txPrev, -1), *this, i, true, false, 0)) + if (!VerifySignature(CCoins(txPrev, -1), *this, i, SCRIPT_VERIFY_P2SH, 0)) return error("ConnectInputs() : VerifySignature failed"); ///// this is redundant with the mempool.mapNextTx stuff, @@ -1598,7 +1593,7 @@ bool CBlock::ConnectBlock(CBlockIndex* pindex, CCoinsViewCache &view, bool fJust nFees += tx.GetValueIn(view)-tx.GetValueOut(); - if (!tx.CheckInputs(view, CS_AFTER_CHECKPOINT, fStrictPayToScriptHash, false)) + if (!tx.CheckInputs(view, CS_AFTER_CHECKPOINT, fStrictPayToScriptHash ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE)) return false; } @@ -1610,7 +1605,7 @@ bool CBlock::ConnectBlock(CBlockIndex* pindex, CCoinsViewCache &view, bool fJust } if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees)) - return false; + return error("ConnectBlock() : coinbase pays too much (actual=%"PRI64d" vs limit=%"PRI64d")", vtx[0].GetValueOut(), GetBlockValue(pindex->nHeight, nFees)); if (fJustCheck) return true; @@ -1693,8 +1688,8 @@ bool SetBestChain(CBlockIndex* pindexNew) reverse(vConnect.begin(), vConnect.end()); if (vDisconnect.size() > 0) { - printf("REORGANIZE: Disconnect %"PRIszu" blocks; %s..%s\n", vDisconnect.size(), pfork->GetBlockHash().ToString().substr(0,20).c_str(), pindexBest->GetBlockHash().ToString().substr(0,20).c_str()); - printf("REORGANIZE: Connect %"PRIszu" blocks; %s..%s\n", vConnect.size(), pfork->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->GetBlockHash().ToString().substr(0,20).c_str()); + printf("REORGANIZE: Disconnect %"PRIszu" blocks; %s..%s\n", vDisconnect.size(), BlockHashStr(pfork->GetBlockHash()).c_str(), BlockHashStr(pindexBest->GetBlockHash()).c_str()); + printf("REORGANIZE: Connect %"PRIszu" blocks; %s..%s\n", vConnect.size(), BlockHashStr(pfork->GetBlockHash()).c_str(), BlockHashStr(pindexNew->GetBlockHash()).c_str()); } // Disconnect shorter branch @@ -1705,7 +1700,7 @@ bool SetBestChain(CBlockIndex* pindexNew) return error("SetBestBlock() : ReadFromDisk for disconnect failed"); CCoinsViewCache viewTemp(view, true); if (!block.DisconnectBlock(pindex, viewTemp)) - return error("SetBestBlock() : DisconnectBlock %s failed", pindex->GetBlockHash().ToString().substr(0,20).c_str()); + return error("SetBestBlock() : DisconnectBlock %s failed", BlockHashStr(pindex->GetBlockHash()).c_str()); if (!viewTemp.Flush()) return error("SetBestBlock() : Cache flush failed after disconnect"); @@ -1725,7 +1720,7 @@ bool SetBestChain(CBlockIndex* pindexNew) if (!block.ConnectBlock(pindex, viewTemp)) { InvalidChainFound(pindexNew); InvalidBlockFound(pindex); - return error("SetBestBlock() : ConnectBlock %s failed", pindex->GetBlockHash().ToString().substr(0,20).c_str()); + return error("SetBestBlock() : ConnectBlock %s failed", BlockHashStr(pindex->GetBlockHash()).c_str()); } if (!viewTemp.Flush()) return error("SetBestBlock() : Cache flush failed after connect"); @@ -1781,7 +1776,7 @@ bool SetBestChain(CBlockIndex* pindexNew) nTimeBestReceived = GetTime(); nTransactionsUpdated++; printf("SetBestChain: new best=%s height=%d work=%s tx=%lu date=%s\n", - hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str(), (unsigned long)pindexNew->nChainTx, + BlockHashStr(hashBestChain).c_str(), nBestHeight, bnBestChainWork.ToString().c_str(), (unsigned long)pindexNew->nChainTx, DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str()); // Check the version of the last 100 blocks to see if we need to upgrade: @@ -1819,7 +1814,7 @@ bool CBlock::AddToBlockIndex(const CDiskBlockPos &pos) // Check for duplicate uint256 hash = GetHash(); if (mapBlockIndex.count(hash)) - return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,20).c_str()); + return error("AddToBlockIndex() : %s already exists", BlockHashStr(hash).c_str()); // Construct new block index object CBlockIndex* pindexNew = new CBlockIndex(*this); @@ -1899,8 +1894,8 @@ bool FindBlockPos(CDiskBlockPos &pos, unsigned int nAddSize, unsigned int nHeigh if (file) { printf("Pre-allocating up to position 0x%x in blk%05u.dat\n", nNewChunks * BLOCKFILE_CHUNK_SIZE, pos.nFile); AllocateFileRange(file, pos.nPos, nNewChunks * BLOCKFILE_CHUNK_SIZE - pos.nPos); + fclose(file); } - fclose(file); } } @@ -1941,8 +1936,8 @@ bool FindUndoPos(int nFile, CDiskBlockPos &pos, unsigned int nAddSize) if (file) { printf("Pre-allocating up to position 0x%x in rev%05u.dat\n", nNewChunks * UNDOFILE_CHUNK_SIZE, pos.nFile); AllocateFileRange(file, pos.nPos, nNewChunks * UNDOFILE_CHUNK_SIZE - pos.nPos); + fclose(file); } - fclose(file); } return true; @@ -2018,52 +2013,51 @@ bool CBlock::AcceptBlock(CDiskBlockPos *dbp) CBlockIndex* pindexPrev = NULL; int nHeight = 0; if (hash != hashGenesisBlock) { - - map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock); - if (mi == mapBlockIndex.end()) - return DoS(10, error("AcceptBlock() : prev block not found")); - pindexPrev = (*mi).second; - nHeight = pindexPrev->nHeight+1; - - // Check proof of work - if (nBits != GetNextWorkRequired(pindexPrev, this)) - return DoS(100, error("AcceptBlock() : incorrect proof of work")); - - // Check timestamp against prev - if (GetBlockTime() <= pindexPrev->GetMedianTimePast()) - return error("AcceptBlock() : block's timestamp is too early"); - - // Check that all transactions are finalized - BOOST_FOREACH(const CTransaction& tx, vtx) - if (!tx.IsFinal(nHeight, GetBlockTime())) - return DoS(10, error("AcceptBlock() : contains a non-final transaction")); - - // Check that the block chain matches the known block chain up to a checkpoint - if (!Checkpoints::CheckBlock(nHeight, hash)) - return DoS(100, error("AcceptBlock() : rejected by checkpoint lock-in at %d", nHeight)); - - // Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded: - if (nVersion < 2) - { - if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 950, 1000)) || - (fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 75, 100))) + map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock); + if (mi == mapBlockIndex.end()) + return DoS(10, error("AcceptBlock() : prev block not found")); + pindexPrev = (*mi).second; + nHeight = pindexPrev->nHeight+1; + + // Check proof of work + if (nBits != GetNextWorkRequired(pindexPrev, this)) + return DoS(100, error("AcceptBlock() : incorrect proof of work")); + + // Check timestamp against prev + if (GetBlockTime() <= pindexPrev->GetMedianTimePast()) + return error("AcceptBlock() : block's timestamp is too early"); + + // Check that all transactions are finalized + BOOST_FOREACH(const CTransaction& tx, vtx) + if (!tx.IsFinal(nHeight, GetBlockTime())) + return DoS(10, error("AcceptBlock() : contains a non-final transaction")); + + // Check that the block chain matches the known block chain up to a checkpoint + if (!Checkpoints::CheckBlock(nHeight, hash)) + return DoS(100, error("AcceptBlock() : rejected by checkpoint lock-in at %d", nHeight)); + + // Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded: + if (nVersion < 2) { - return error("AcceptBlock() : rejected nVersion=1 block"); + if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 950, 1000)) || + (fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 75, 100))) + { + return error("AcceptBlock() : rejected nVersion=1 block"); + } } - } - // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height - if (nVersion >= 2) - { - // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): - if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 750, 1000)) || - (fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 51, 100))) + // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height + if (nVersion >= 2) { - CScript expect = CScript() << nHeight; - if (!std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin())) - return DoS(100, error("AcceptBlock() : block height mismatch in coinbase")); + // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet): + if ((!fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 750, 1000)) || + (fTestNet && CBlockIndex::IsSuperMajority(2, pindexPrev, 51, 100))) + { + CScript expect = CScript() << nHeight; + if (!std::equal(expect.begin(), expect.end(), vtx[0].vin[0].scriptSig.begin())) + return DoS(100, error("AcceptBlock() : block height mismatch in coinbase")); + } } } - } // Write block to history file unsigned int nBlockSize = ::GetSerializeSize(*this, SER_DISK, CLIENT_VERSION); @@ -2112,9 +2106,9 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock, CDiskBlockPos *dbp) // Check for duplicate uint256 hash = pblock->GetHash(); if (mapBlockIndex.count(hash)) - return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, hash.ToString().substr(0,20).c_str()); + return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, BlockHashStr(hash).c_str()); if (mapOrphanBlocks.count(hash)) - return error("ProcessBlock() : already have block (orphan) %s", hash.ToString().substr(0,20).c_str()); + return error("ProcessBlock() : already have block (orphan) %s", BlockHashStr(hash).c_str()); // Preliminary checks if (!pblock->CheckBlock()) @@ -2147,7 +2141,7 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock, CDiskBlockPos *dbp) // If we don't already have its previous block, shunt it off to holding area until we get it if (pblock->hashPrevBlock != 0 && !mapBlockIndex.count(pblock->hashPrevBlock)) { - printf("ProcessBlock: ORPHAN BLOCK, prev=%s\n", pblock->hashPrevBlock.ToString().substr(0,20).c_str()); + printf("ProcessBlock: ORPHAN BLOCK, prev=%s\n", BlockHashStr(pblock->hashPrevBlock).c_str()); // Accept orphans as long as there is a node to request its parents from if (pfrom) { @@ -2319,7 +2313,7 @@ bool static LoadBlockIndexDB() pindex = pindexPrev; } printf("LoadBlockIndex(): hashBestChain=%s height=%d date=%s\n", - hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, + BlockHashStr(hashBestChain).c_str(), nBestHeight, DateTimeStrFormat("%x %H:%M:%S", pindexBest->GetBlockTime()).c_str()); // Load bnBestInvalidWork, OK if it doesn't exist @@ -3029,12 +3023,12 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) if (pindex) pindex = pindex->pnext; int nLimit = 500; - printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit); + printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), BlockHashStr(hashStop).c_str(), nLimit); for (; pindex; pindex = pindex->pnext) { if (pindex->GetBlockHash() == hashStop) { - printf(" getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str()); + printf(" getblocks stopping at %d %s\n", pindex->nHeight, BlockHashStr(pindex->GetBlockHash()).c_str()); break; } pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash())); @@ -3042,7 +3036,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) { // When this block is requested, we'll send an inv that'll make them // getblocks the next batch of inventory. - printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str()); + printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, BlockHashStr(pindex->GetBlockHash()).c_str()); pfrom->hashContinue = pindex->GetBlockHash(); break; } @@ -3073,9 +3067,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) pindex = pindex->pnext; } + // we must use CBlocks, as CBlockHeaders won't include the 0x00 nTx count at the end vector<CBlock> vHeaders; int nLimit = 2000; - printf("getheaders %d to %s\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str()); + printf("getheaders %d to %s\n", (pindex ? pindex->nHeight : -1), BlockHashStr(hashStop).c_str()); for (; pindex; pindex = pindex->pnext) { vHeaders.push_back(pindex->GetBlockHeader()); @@ -3159,7 +3154,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv) CBlock block; vRecv >> block; - printf("received block %s\n", block.GetHash().ToString().substr(0,20).c_str()); + printf("received block %s\n", BlockHashStr(block.GetHash()).c_str()); // block.print(); CInv inv(MSG_BLOCK, block.GetHash()); @@ -3864,7 +3859,7 @@ CBlock* CreateNewBlock(CReserveKey& reservekey) if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS) continue; - if (!tx.CheckInputs(viewTemp, CS_ALWAYS, true, false)) + if (!tx.CheckInputs(viewTemp, CS_ALWAYS, SCRIPT_VERIFY_P2SH)) continue; CTxUndo txundo; |