diff options
Diffstat (limited to 'src/policy/policy.cpp')
| -rw-r--r-- | src/policy/policy.cpp | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp index d1a15451dc..48080abc77 100644 --- a/src/policy/policy.cpp +++ b/src/policy/policy.cpp @@ -31,7 +31,7 @@ * DUP CHECKSIG DROP ... repeated 100 times... OP_1 */ -bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType) +bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType, const bool witnessEnabled) { std::vector<std::vector<unsigned char> > vSolutions; if (!Solver(scriptPubKey, whichType, vSolutions)) @@ -50,10 +50,13 @@ bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType) (!fAcceptDatacarrier || scriptPubKey.size() > nMaxDatacarrierBytes)) return false; + else if (!witnessEnabled && (whichType == TX_WITNESS_V0_KEYHASH || whichType == TX_WITNESS_V0_SCRIPTHASH)) + return false; + return whichType != TX_NONSTANDARD; } -bool IsStandardTx(const CTransaction& tx, std::string& reason) +bool IsStandardTx(const CTransaction& tx, std::string& reason, const bool witnessEnabled) { if (tx.nVersion > CTransaction::MAX_STANDARD_VERSION || tx.nVersion < 1) { reason = "version"; @@ -64,8 +67,8 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason) // almost as much to process as they cost the sender in fees, because // computing signature hashes is O(ninputs*txsize). Limiting transactions // to MAX_STANDARD_TX_SIZE mitigates CPU exhaustion attacks. - unsigned int sz = tx.GetSerializeSize(SER_NETWORK, CTransaction::CURRENT_VERSION); - if (sz >= MAX_STANDARD_TX_SIZE) { + unsigned int sz = GetTransactionWeight(tx); + if (sz >= MAX_STANDARD_TX_WEIGHT) { reason = "tx-size"; return false; } @@ -92,7 +95,7 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason) unsigned int nDataOut = 0; txnouttype whichType; BOOST_FOREACH(const CTxOut& txout, tx.vout) { - if (!::IsStandard(txout.scriptPubKey, whichType)) { + if (!::IsStandard(txout.scriptPubKey, whichType, witnessEnabled)) { reason = "scriptpubkey"; return false; } @@ -137,7 +140,7 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs) { std::vector<std::vector<unsigned char> > stack; // convert the scriptSig into a stack, so we can inspect the redeemScript - if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), 0)) + if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), SIGVERSION_BASE)) return false; if (stack.empty()) return false; @@ -150,3 +153,15 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs) return true; } + +unsigned int nBytesPerSigOp = DEFAULT_BYTES_PER_SIGOP; + +int64_t GetVirtualTransactionSize(int64_t nWeight, int64_t nSigOpCost) +{ + return (std::max(nWeight, nSigOpCost * nBytesPerSigOp) + WITNESS_SCALE_FACTOR - 1) / WITNESS_SCALE_FACTOR; +} + +int64_t GetVirtualTransactionSize(const CTransaction& tx, int64_t nSigOpCost) +{ + return GetVirtualTransactionSize(GetTransactionWeight(tx), nSigOpCost); +} |