diff options
Diffstat (limited to 'src/rpc/mining.cpp')
-rw-r--r-- | src/rpc/mining.cpp | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index 29684d0e6c..2fd6f99be5 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -311,7 +311,7 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) " https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes\n" " https://github.com/bitcoin/bips/blob/master/bip-0145.mediawiki\n", { - {"template_request", RPCArg::Type::OBJ, /* opt */ true, /* default_val */ "", "A json object in the following spec", + {"template_request", RPCArg::Type::OBJ, /* opt */ false, /* default_val */ "", "A json object in the following spec", { {"mode", RPCArg::Type::STR, /* opt */ true, /* default_val */ "", "This must be set to \"template\", \"proposal\" (see BIP 23), or omitted"}, {"capabilities", RPCArg::Type::ARR, /* opt */ true, /* default_val */ "", "A list of strings", @@ -319,7 +319,7 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) {"support", RPCArg::Type::STR, /* opt */ true, /* default_val */ "", "client side supported feature, 'longpoll', 'coinbasetxn', 'coinbasevalue', 'proposal', 'serverlist', 'workid'"}, }, }, - {"rules", RPCArg::Type::ARR, /* opt */ true, /* default_val */ "", "A list of strings", + {"rules", RPCArg::Type::ARR, /* opt */ false, /* default_val */ "", "A list of strings", { {"support", RPCArg::Type::STR, /* opt */ true, /* default_val */ "", "client side supported softfork deployment"}, }, @@ -503,21 +503,17 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) } const struct VBDeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT]; - // If the caller is indicating segwit support, then allow CreateNewBlock() - // to select witness transactions, after segwit activates (otherwise - // don't). - bool fSupportsSegwit = setClientRules.find(segwit_info.name) != setClientRules.end(); + // GBT must be called with 'segwit' set in the rules + if (setClientRules.count(segwit_info.name) != 1) { + throw JSONRPCError(RPC_INVALID_PARAMETER, "getblocktemplate must be called with the segwit rule set (call with {\"rules\": [\"segwit\"]})"); + } // Update block static CBlockIndex* pindexPrev; static int64_t nStart; static std::unique_ptr<CBlockTemplate> pblocktemplate; - // Cache whether the last invocation was with segwit support, to avoid returning - // a segwit-block to a non-segwit caller. - static bool fLastTemplateSupportsSegwit = true; if (pindexPrev != chainActive.Tip() || - (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5) || - fLastTemplateSupportsSegwit != fSupportsSegwit) + (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5)) { // Clear pindexPrev so future calls make a new block, despite any failures from here on pindexPrev = nullptr; @@ -526,11 +522,10 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) nTransactionsUpdatedLast = mempool.GetTransactionsUpdated(); CBlockIndex* pindexPrevNew = chainActive.Tip(); nStart = GetTime(); - fLastTemplateSupportsSegwit = fSupportsSegwit; // Create new block CScript scriptDummy = CScript() << OP_TRUE; - pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptDummy, fSupportsSegwit); + pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptDummy); if (!pblocktemplate) throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory"); @@ -682,7 +677,7 @@ static UniValue getblocktemplate(const JSONRPCRequest& request) result.pushKV("bits", strprintf("%08x", pblock->nBits)); result.pushKV("height", (int64_t)(pindexPrev->nHeight+1)); - if (!pblocktemplate->vchCoinbaseCommitment.empty() && fSupportsSegwit) { + if (!pblocktemplate->vchCoinbaseCommitment.empty()) { result.pushKV("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end())); } |