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Always add default_witness_commitment with GBT client support

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This commit is contained in:
Pieter Wuille 2016-11-18 12:15:01 -08:00
parent 0c577f2638
commit ad04d1cb35
3 changed files with 5 additions and 9 deletions
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9
src/main.cpp
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@ -3531,15 +3531,8 @@ std::vector<unsigned char> GenerateCoinbaseCommitment(CBlock& block, const CBloc
{ {
std::vector<unsigned char> commitment; std::vector<unsigned char> commitment;
int commitpos = GetWitnessCommitmentIndex(block); int commitpos = GetWitnessCommitmentIndex(block);
bool fHaveWitness = false;
for (size_t t = 1; t < block.vtx.size(); t++) {
if (!block.vtx[t]->wit.IsNull()) {
fHaveWitness = true;
break;
}
}
std::vector<unsigned char> ret(32, 0x00); std::vector<unsigned char> ret(32, 0x00);
if (fHaveWitness && IsWitnessEnabled(pindexPrev, consensusParams)) { if (consensusParams.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout != 0) {
if (commitpos == -1) { if (commitpos == -1) {
uint256 witnessroot = BlockWitnessMerkleRoot(block, NULL); uint256 witnessroot = BlockWitnessMerkleRoot(block, NULL);
CHash256().Write(witnessroot.begin(), 32).Write(&ret[0], 32).Finalize(witnessroot.begin()); CHash256().Write(witnessroot.begin(), 32).Write(&ret[0], 32).Finalize(witnessroot.begin());

4
src/rpc/mining.cpp
View file

@ -680,7 +680,9 @@ UniValue getblocktemplate(const JSONRPCRequest& request)
result.push_back(Pair("curtime", pblock->GetBlockTime())); result.push_back(Pair("curtime", pblock->GetBlockTime()));
result.push_back(Pair("bits", strprintf("%08x", pblock->nBits))); result.push_back(Pair("bits", strprintf("%08x", pblock->nBits)));
result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1)));
if (!pblocktemplate->vchCoinbaseCommitment.empty()) {
const struct BIP9DeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT];
if (!pblocktemplate->vchCoinbaseCommitment.empty() && setClientRules.find(segwit_info.name) != setClientRules.end()) {
result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end()))); result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end())));
} }

1
src/test/miner_tests.cpp
View file

@ -214,6 +214,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
txCoinbase.vin[0].scriptSig = CScript(); txCoinbase.vin[0].scriptSig = CScript();
txCoinbase.vin[0].scriptSig.push_back(blockinfo[i].extranonce); txCoinbase.vin[0].scriptSig.push_back(blockinfo[i].extranonce);
txCoinbase.vin[0].scriptSig.push_back(chainActive.Height()); txCoinbase.vin[0].scriptSig.push_back(chainActive.Height());
txCoinbase.vout.resize(1); // Ignore the (optional) segwit commitment added by CreateNewBlock (as the hardcoded nonces don't account for this)
txCoinbase.vout[0].scriptPubKey = CScript(); txCoinbase.vout[0].scriptPubKey = CScript();
pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase)); pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase));
if (txFirst.size() == 0) if (txFirst.size() == 0)