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-rw-r--r--src/rpc/client.cpp1
-rw-r--r--src/rpc/mempool.cpp146
2 files changed, 147 insertions, 0 deletions
diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp
index ae0d0112ba..9be3ab7df0 100644
--- a/src/rpc/client.cpp
+++ b/src/rpc/client.cpp
@@ -110,6 +110,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
{ "sendrawtransaction", 1, "maxfeerate" },
{ "testmempoolaccept", 0, "rawtxs" },
{ "testmempoolaccept", 1, "maxfeerate" },
+ { "submitpackage", 0, "package" },
{ "combinerawtransaction", 0, "txs" },
{ "fundrawtransaction", 1, "options" },
{ "fundrawtransaction", 2, "iswitness" },
diff --git a/src/rpc/mempool.cpp b/src/rpc/mempool.cpp
index 01c75bfda3..dbba00fd9d 100644
--- a/src/rpc/mempool.cpp
+++ b/src/rpc/mempool.cpp
@@ -5,6 +5,7 @@
#include <rpc/blockchain.h>
+#include <chainparams.h>
#include <core_io.h>
#include <fs.h>
#include <policy/rbf.h>
@@ -729,6 +730,150 @@ static RPCHelpMan savemempool()
};
}
+static RPCHelpMan submitpackage()
+{
+ return RPCHelpMan{"submitpackage",
+ "Submit a package of raw transactions (serialized, hex-encoded) to local node (-regtest only).\n"
+ "The package will be validated according to consensus and mempool policy rules. If all transactions pass, they will be accepted to mempool.\n"
+ "This RPC is experimental and the interface may be unstable. Refer to doc/policy/packages.md for documentation on package policies.\n"
+ "Warning: until package relay is in use, successful submission does not mean the transaction will propagate to other nodes on the network.\n"
+ "Currently, each transaction is broadcasted individually after submission, which means they must meet other nodes' feerate requirements alone.\n"
+ ,
+ {
+ {"package", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of raw transactions.",
+ {
+ {"rawtx", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""},
+ },
+ },
+ },
+ RPCResult{
+ RPCResult::Type::OBJ, "", "",
+ {
+ {RPCResult::Type::OBJ_DYN, "tx-results", "transaction results keyed by wtxid",
+ {
+ {RPCResult::Type::OBJ, "wtxid", "transaction wtxid", {
+ {RPCResult::Type::STR_HEX, "txid", "The transaction hash in hex"},
+ {RPCResult::Type::STR_HEX, "other-wtxid", /*optional=*/true, "The wtxid of a different transaction with the same txid but different witness found in the mempool. This means the submitted transaction was ignored."},
+ {RPCResult::Type::NUM, "vsize", "Virtual transaction size as defined in BIP 141."},
+ {RPCResult::Type::OBJ, "fees", "Transaction fees", {
+ {RPCResult::Type::STR_AMOUNT, "base", "transaction fee in " + CURRENCY_UNIT},
+ }},
+ }}
+ }},
+ {RPCResult::Type::STR_AMOUNT, "package-feerate", /*optional=*/true, "package feerate used for feerate checks in " + CURRENCY_UNIT + " per KvB. Excludes transactions which were deduplicated or accepted individually."},
+ {RPCResult::Type::ARR, "replaced-transactions", /*optional=*/true, "List of txids of replaced transactions",
+ {
+ {RPCResult::Type::STR_HEX, "", "The transaction id"},
+ }},
+ },
+ },
+ RPCExamples{
+ HelpExampleCli("testmempoolaccept", "[rawtx1, rawtx2]") +
+ HelpExampleCli("submitpackage", "[rawtx1, rawtx2]")
+ },
+ [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
+ {
+ if (!Params().IsMockableChain()) {
+ throw std::runtime_error("submitpackage is for regression testing (-regtest mode) only");
+ }
+ RPCTypeCheck(request.params, {
+ UniValue::VARR,
+ });
+ const UniValue raw_transactions = request.params[0].get_array();
+ if (raw_transactions.size() < 1 || raw_transactions.size() > MAX_PACKAGE_COUNT) {
+ throw JSONRPCError(RPC_INVALID_PARAMETER,
+ "Array must contain between 1 and " + ToString(MAX_PACKAGE_COUNT) + " transactions.");
+ }
+
+ std::vector<CTransactionRef> txns;
+ txns.reserve(raw_transactions.size());
+ for (const auto& rawtx : raw_transactions.getValues()) {
+ CMutableTransaction mtx;
+ if (!DecodeHexTx(mtx, rawtx.get_str())) {
+ throw JSONRPCError(RPC_DESERIALIZATION_ERROR,
+ "TX decode failed: " + rawtx.get_str() + " Make sure the tx has at least one input.");
+ }
+ txns.emplace_back(MakeTransactionRef(std::move(mtx)));
+ }
+
+ NodeContext& node = EnsureAnyNodeContext(request.context);
+ CTxMemPool& mempool = EnsureMemPool(node);
+ CChainState& chainstate = EnsureChainman(node).ActiveChainstate();
+ const auto package_result = WITH_LOCK(::cs_main, return ProcessNewPackage(chainstate, mempool, txns, /*test_accept=*/ false));
+
+ // First catch any errors.
+ switch(package_result.m_state.GetResult()) {
+ case PackageValidationResult::PCKG_RESULT_UNSET: break;
+ case PackageValidationResult::PCKG_POLICY:
+ {
+ throw JSONRPCTransactionError(TransactionError::INVALID_PACKAGE,
+ package_result.m_state.GetRejectReason());
+ }
+ case PackageValidationResult::PCKG_MEMPOOL_ERROR:
+ {
+ throw JSONRPCTransactionError(TransactionError::MEMPOOL_ERROR,
+ package_result.m_state.GetRejectReason());
+ }
+ case PackageValidationResult::PCKG_TX:
+ {
+ for (const auto& tx : txns) {
+ auto it = package_result.m_tx_results.find(tx->GetWitnessHash());
+ if (it != package_result.m_tx_results.end() && it->second.m_state.IsInvalid()) {
+ throw JSONRPCTransactionError(TransactionError::MEMPOOL_REJECTED,
+ strprintf("%s failed: %s", tx->GetHash().ToString(), it->second.m_state.GetRejectReason()));
+ }
+ }
+ // If a PCKG_TX error was returned, there must have been an invalid transaction.
+ NONFATAL_UNREACHABLE();
+ }
+ }
+ for (const auto& tx : txns) {
+ size_t num_submitted{0};
+ std::string err_string;
+ const auto err = BroadcastTransaction(node, tx, err_string, 0, true, true);
+ if (err != TransactionError::OK) {
+ throw JSONRPCTransactionError(err,
+ strprintf("transaction broadcast failed: %s (all transactions were submitted, %d transactions were broadcast successfully)",
+ err_string, num_submitted));
+ }
+ }
+ UniValue rpc_result{UniValue::VOBJ};
+ UniValue tx_result_map{UniValue::VOBJ};
+ std::set<uint256> replaced_txids;
+ for (const auto& tx : txns) {
+ auto it = package_result.m_tx_results.find(tx->GetWitnessHash());
+ CHECK_NONFATAL(it != package_result.m_tx_results.end());
+ UniValue result_inner{UniValue::VOBJ};
+ result_inner.pushKV("txid", tx->GetHash().GetHex());
+ if (it->second.m_result_type == MempoolAcceptResult::ResultType::DIFFERENT_WITNESS) {
+ result_inner.pushKV("other-wtxid", it->second.m_other_wtxid.value().GetHex());
+ }
+ if (it->second.m_result_type == MempoolAcceptResult::ResultType::VALID ||
+ it->second.m_result_type == MempoolAcceptResult::ResultType::MEMPOOL_ENTRY) {
+ result_inner.pushKV("vsize", int64_t{it->second.m_vsize.value()});
+ UniValue fees(UniValue::VOBJ);
+ fees.pushKV("base", ValueFromAmount(it->second.m_base_fees.value()));
+ result_inner.pushKV("fees", fees);
+ if (it->second.m_replaced_transactions.has_value()) {
+ for (const auto& ptx : it->second.m_replaced_transactions.value()) {
+ replaced_txids.insert(ptx->GetHash());
+ }
+ }
+ }
+ tx_result_map.pushKV(tx->GetWitnessHash().GetHex(), result_inner);
+ }
+ rpc_result.pushKV("tx-results", tx_result_map);
+ if (package_result.m_package_feerate.has_value()) {
+ rpc_result.pushKV("package-feerate", ValueFromAmount(package_result.m_package_feerate.value().GetFeePerK()));
+ }
+ UniValue replaced_list(UniValue::VARR);
+ for (const uint256& hash : replaced_txids) replaced_list.push_back(hash.ToString());
+ rpc_result.pushKV("replaced-transactions", replaced_list);
+ return rpc_result;
+ },
+ };
+}
+
void RegisterMempoolRPCCommands(CRPCTable& t)
{
static const CRPCCommand commands[]{
@@ -741,6 +886,7 @@ void RegisterMempoolRPCCommands(CRPCTable& t)
{"blockchain", &getmempoolinfo},
{"blockchain", &getrawmempool},
{"blockchain", &savemempool},
+ {"hidden", &submitpackage},
};
for (const auto& c : commands) {
t.appendCommand(c.name, &c);
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-01 03:07:43 +0000