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-rw-r--r--src/rpc/rawtransaction.cpp130
1 files changed, 81 insertions, 49 deletions
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index adb8ac0595..339d711ac9 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -15,6 +15,7 @@
#include <node/context.h>
#include <node/psbt.h>
#include <node/transaction.h>
+#include <policy/packages.h>
#include <policy/policy.h>
#include <policy/rbf.h>
#include <primitives/transaction.h>
@@ -885,8 +886,11 @@ static RPCHelpMan sendrawtransaction()
static RPCHelpMan testmempoolaccept()
{
return RPCHelpMan{"testmempoolaccept",
- "\nReturns result of mempool acceptance tests indicating if raw transaction (serialized, hex-encoded) would be accepted by mempool.\n"
- "\nThis checks if the transaction violates the consensus or policy rules.\n"
+ "\nReturns result of mempool acceptance tests indicating if raw transaction(s) (serialized, hex-encoded) would be accepted by mempool.\n"
+ "\nIf multiple transactions are passed in, parents must come before children and package policies apply: the transactions cannot conflict with any mempool transactions or each other.\n"
+ "\nIf one transaction fails, other transactions may not be fully validated (the 'allowed' key will be blank).\n"
+ "\nThe maximum number of transactions allowed is 25 (MAX_PACKAGE_COUNT)\n"
+ "\nThis checks if transactions violate the consensus or policy rules.\n"
"\nSee sendrawtransaction call.\n",
{
{"rawtxs", RPCArg::Type::ARR, RPCArg::Optional::NO, "An array of hex strings of raw transactions.\n"
@@ -895,17 +899,21 @@ static RPCHelpMan testmempoolaccept()
{"rawtx", RPCArg::Type::STR_HEX, RPCArg::Optional::OMITTED, ""},
},
},
- {"maxfeerate", RPCArg::Type::AMOUNT, RPCArg::Default{FormatMoney(DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK())}, "Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT + "/kvB\n"},
+ {"maxfeerate", RPCArg::Type::AMOUNT, RPCArg::Default{FormatMoney(DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK())},
+ "Reject transactions whose fee rate is higher than the specified value, expressed in " + CURRENCY_UNIT + "/kvB\n"},
},
RPCResult{
RPCResult::Type::ARR, "", "The result of the mempool acceptance test for each raw transaction in the input array.\n"
- "Length is exactly one for now.",
+ "Returns results for each transaction in the same order they were passed in.\n"
+ "It is possible for transactions to not be fully validated ('allowed' unset) if an earlier transaction failed.\n",
{
{RPCResult::Type::OBJ, "", "",
{
{RPCResult::Type::STR_HEX, "txid", "The transaction hash in hex"},
{RPCResult::Type::STR_HEX, "wtxid", "The transaction witness hash in hex"},
- {RPCResult::Type::BOOL, "allowed", "If the mempool allows this tx to be inserted"},
+ {RPCResult::Type::STR, "package-error", "Package validation error, if any (only possible if rawtxs had more than 1 transaction)."},
+ {RPCResult::Type::BOOL, "allowed", "Whether this tx would be accepted to the mempool and pass client-specified maxfeerate."
+ "If not present, the tx was not fully validated due to a failure in another tx in the list."},
{RPCResult::Type::NUM, "vsize", "Virtual transaction size as defined in BIP 141. This is different from actual serialized size for witness transactions as witness data is discounted (only present when 'allowed' is true)"},
{RPCResult::Type::OBJ, "fees", "Transaction fees (only present if 'allowed' is true)",
{
@@ -932,62 +940,86 @@ static RPCHelpMan testmempoolaccept()
UniValueType(), // VNUM or VSTR, checked inside AmountFromValue()
});
- if (request.params[0].get_array().size() != 1) {
- throw JSONRPCError(RPC_INVALID_PARAMETER, "Array must contain exactly one raw transaction for now");
- }
-
- CMutableTransaction mtx;
- if (!DecodeHexTx(mtx, request.params[0].get_array()[0].get_str())) {
- throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed. Make sure the tx has at least one input.");
+ 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.");
}
- CTransactionRef tx(MakeTransactionRef(std::move(mtx)));
const CFeeRate max_raw_tx_fee_rate = request.params[1].isNull() ?
DEFAULT_MAX_RAW_TX_FEE_RATE :
CFeeRate(AmountFromValue(request.params[1]));
- NodeContext& node = EnsureAnyNodeContext(request.context);
+ std::vector<CTransactionRef> txns;
+ 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);
- int64_t virtual_size = GetVirtualTransactionSize(*tx);
- CAmount max_raw_tx_fee = max_raw_tx_fee_rate.GetFee(virtual_size);
-
- UniValue result(UniValue::VARR);
- UniValue result_0(UniValue::VOBJ);
- result_0.pushKV("txid", tx->GetHash().GetHex());
- result_0.pushKV("wtxid", tx->GetWitnessHash().GetHex());
-
- ChainstateManager& chainman = EnsureChainman(node);
- const MempoolAcceptResult accept_result = WITH_LOCK(cs_main, return AcceptToMemoryPool(chainman.ActiveChainstate(), mempool, std::move(tx),
- false /* bypass_limits */, /* test_accept */ true));
-
- // Only return the fee and vsize if the transaction would pass ATMP.
- // These can be used to calculate the feerate.
- if (accept_result.m_result_type == MempoolAcceptResult::ResultType::VALID) {
- const CAmount fee = accept_result.m_base_fees.value();
- // Check that fee does not exceed maximum fee
- if (max_raw_tx_fee && fee > max_raw_tx_fee) {
- result_0.pushKV("allowed", false);
- result_0.pushKV("reject-reason", "max-fee-exceeded");
- } else {
- result_0.pushKV("allowed", true);
- result_0.pushKV("vsize", virtual_size);
- UniValue fees(UniValue::VOBJ);
- fees.pushKV("base", ValueFromAmount(fee));
- result_0.pushKV("fees", fees);
+ CChainState& chainstate = EnsureChainman(node).ActiveChainstate();
+ const PackageMempoolAcceptResult package_result = [&] {
+ LOCK(::cs_main);
+ if (txns.size() > 1) return ProcessNewPackage(chainstate, mempool, txns, /* test_accept */ true);
+ return PackageMempoolAcceptResult(txns[0]->GetWitnessHash(),
+ AcceptToMemoryPool(chainstate, mempool, txns[0], /* bypass_limits */ false, /* test_accept*/ true));
+ }();
+
+ UniValue rpc_result(UniValue::VARR);
+ // We will check transaction fees we iterate through txns in order. If any transaction fee
+ // exceeds maxfeerate, we will keave the rest of the validation results blank, because it
+ // doesn't make sense to return a validation result for a transaction if its ancestor(s) would
+ // not be submitted.
+ bool exit_early{false};
+ for (const auto& tx : txns) {
+ UniValue result_inner(UniValue::VOBJ);
+ result_inner.pushKV("txid", tx->GetHash().GetHex());
+ result_inner.pushKV("wtxid", tx->GetWitnessHash().GetHex());
+ if (package_result.m_state.GetResult() == PackageValidationResult::PCKG_POLICY) {
+ result_inner.pushKV("package-error", package_result.m_state.GetRejectReason());
}
- result.push_back(std::move(result_0));
- } else {
- result_0.pushKV("allowed", false);
- const TxValidationState state = accept_result.m_state;
- if (state.GetResult() == TxValidationResult::TX_MISSING_INPUTS) {
- result_0.pushKV("reject-reason", "missing-inputs");
+ auto it = package_result.m_tx_results.find(tx->GetWitnessHash());
+ if (exit_early || it == package_result.m_tx_results.end()) {
+ // Validation unfinished. Just return the txid and wtxid.
+ rpc_result.push_back(result_inner);
+ continue;
+ }
+ const auto& tx_result = it->second;
+ if (tx_result.m_result_type == MempoolAcceptResult::ResultType::VALID) {
+ const CAmount fee = tx_result.m_base_fees.value();
+ // Check that fee does not exceed maximum fee
+ const int64_t virtual_size = GetVirtualTransactionSize(*tx);
+ const CAmount max_raw_tx_fee = max_raw_tx_fee_rate.GetFee(virtual_size);
+ if (max_raw_tx_fee && fee > max_raw_tx_fee) {
+ result_inner.pushKV("allowed", false);
+ result_inner.pushKV("reject-reason", "max-fee-exceeded");
+ exit_early = true;
+ } else {
+ // Only return the fee and vsize if the transaction would pass ATMP.
+ // These can be used to calculate the feerate.
+ result_inner.pushKV("allowed", true);
+ result_inner.pushKV("vsize", virtual_size);
+ UniValue fees(UniValue::VOBJ);
+ fees.pushKV("base", ValueFromAmount(fee));
+ result_inner.pushKV("fees", fees);
+ }
} else {
- result_0.pushKV("reject-reason", state.GetRejectReason());
+ result_inner.pushKV("allowed", false);
+ const TxValidationState state = tx_result.m_state;
+ if (state.GetResult() == TxValidationResult::TX_MISSING_INPUTS) {
+ result_inner.pushKV("reject-reason", "missing-inputs");
+ } else {
+ result_inner.pushKV("reject-reason", state.GetRejectReason());
+ }
}
- result.push_back(std::move(result_0));
+ rpc_result.push_back(result_inner);
}
- return result;
+ return rpc_result;
},
};
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-13 02:27:50 +0000