diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 41 |
1 files changed, 20 insertions, 21 deletions
diff --git a/src/main.cpp b/src/main.cpp index 7bb61f251c..a3e36ff872 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -729,7 +729,7 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) REJECT_INVALID, "bad-txns-oversize"); // Check for negative or overflow output values - int64_t nValueOut = 0; + CAmount nValueOut = 0; BOOST_FOREACH(const CTxOut& txout, tx.vout) { if (txout.nValue < 0) @@ -771,19 +771,19 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) return true; } -int64_t GetMinRelayFee(const CTransaction& tx, unsigned int nBytes, bool fAllowFree) +CAmount GetMinRelayFee(const CTransaction& tx, unsigned int nBytes, bool fAllowFree) { { LOCK(mempool.cs); uint256 hash = tx.GetHash(); double dPriorityDelta = 0; - int64_t nFeeDelta = 0; + CAmount nFeeDelta = 0; mempool.ApplyDeltas(hash, dPriorityDelta, nFeeDelta); if (dPriorityDelta > 0 || nFeeDelta > 0) return 0; } - int64_t nMinFee = ::minRelayTxFee.GetFee(nBytes); + CAmount nMinFee = ::minRelayTxFee.GetFee(nBytes); if (fAllowFree) { @@ -846,7 +846,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa CCoinsView dummy; CCoinsViewCache view(dummy); - int64_t nValueIn = 0; + CAmount nValueIn = 0; { LOCK(pool.cs); CCoinsViewMemPool viewMemPool(*pcoinsTip, pool); @@ -898,15 +898,15 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa hash.ToString(), nSigOps, MAX_TX_SIGOPS), REJECT_NONSTANDARD, "bad-txns-too-many-sigops"); - int64_t nValueOut = tx.GetValueOut(); - int64_t nFees = nValueIn-nValueOut; + CAmount nValueOut = tx.GetValueOut(); + CAmount nFees = nValueIn-nValueOut; double dPriority = view.GetPriority(tx, chainActive.Height()); CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height()); unsigned int nSize = entry.GetTxSize(); // Don't accept it if it can't get into a block - int64_t txMinFee = GetMinRelayFee(tx, nSize, true); + CAmount txMinFee = GetMinRelayFee(tx, nSize, true); if (fLimitFree && nFees < txMinFee) return state.DoS(0, error("AcceptToMemoryPool : not enough fees %s, %d < %d", hash.ToString(), nFees, txMinFee), @@ -1126,7 +1126,7 @@ void static PruneOrphanBlocks() mapOrphanBlocks.erase(hash); } -int64_t GetBlockValue(int nHeight, int64_t nFees) +CAmount GetBlockValue(int nHeight, const CAmount& nFees) { int64_t nSubsidy = 50 * COIN; int halvings = nHeight / Params().SubsidyHalvingInterval(); @@ -1337,8 +1337,8 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi // This is also true for mempool checks. CBlockIndex *pindexPrev = mapBlockIndex.find(inputs.GetBestBlock())->second; int nSpendHeight = pindexPrev->nHeight + 1; - int64_t nValueIn = 0; - int64_t nFees = 0; + CAmount nValueIn = 0; + CAmount nFees = 0; for (unsigned int i = 0; i < tx.vin.size(); i++) { const COutPoint &prevout = tx.vin[i].prevout; @@ -1367,7 +1367,7 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi REJECT_INVALID, "bad-txns-in-belowout"); // Tally transaction fees - int64_t nTxFee = nValueIn - tx.GetValueOut(); + CAmount nTxFee = nValueIn - tx.GetValueOut(); if (nTxFee < 0) return state.DoS(100, error("CheckInputs() : %s nTxFee < 0", tx.GetHash().ToString()), REJECT_INVALID, "bad-txns-fee-negative"); @@ -1607,7 +1607,7 @@ bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, C CCheckQueueControl<CScriptCheck> control(fScriptChecks && nScriptCheckThreads ? &scriptcheckqueue : NULL); int64_t nTimeStart = GetTimeMicros(); - int64_t nFees = 0; + CAmount nFees = 0; int nInputs = 0; unsigned int nSigOps = 0; CDiskTxPos pos(pindex->GetBlockPos(), GetSizeOfCompactSize(block.vtx.size())); @@ -2238,13 +2238,12 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo if (!CheckTransaction(tx, state)) return error("CheckBlock() : CheckTransaction failed"); - // Check for duplicate txids. This is caught by ConnectInputs(), - // but catching it earlier avoids a potential DoS attack: - set<uint256> uniqueTx; - BOOST_FOREACH(const CTransaction &tx, block.vtx) { - uniqueTx.insert(tx.GetHash()); - } - if (uniqueTx.size() != block.vtx.size()) + // Check for merkle tree malleability (CVE-2012-2459): repeating sequences + // of transactions in a block without affecting the merkle root of a block, + // while still invalidating it. + bool mutated; + uint256 hashMerkleRoot2 = block.BuildMerkleTree(&mutated); + if (mutated) return state.DoS(100, error("CheckBlock() : duplicate transaction"), REJECT_INVALID, "bad-txns-duplicate", true); @@ -2258,7 +2257,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo REJECT_INVALID, "bad-blk-sigops", true); // Check merkle root - if (fCheckMerkleRoot && block.hashMerkleRoot != block.BuildMerkleTree()) + if (fCheckMerkleRoot && block.hashMerkleRoot != hashMerkleRoot2) return state.DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"), REJECT_INVALID, "bad-txnmrklroot", true); |