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-rw-r--r--doc/release-notes-0.18.1-16257.md6
-rw-r--r--src/policy/fees.h1
-rw-r--r--src/qt/walletmodel.cpp4
-rw-r--r--src/util/error.cpp2
-rw-r--r--src/util/error.h1
-rw-r--r--src/util/fees.cpp1
-rw-r--r--src/wallet/fees.cpp9
-rw-r--r--src/wallet/wallet.cpp5
-rwxr-xr-xtest/functional/rpc_fundrawtransaction.py1
-rwxr-xr-xtest/functional/rpc_psbt.py10
10 files changed, 27 insertions, 13 deletions
diff --git a/doc/release-notes-0.18.1-16257.md b/doc/release-notes-0.18.1-16257.md
new file mode 100644
index 0000000000..21867b7fb2
--- /dev/null
+++ b/doc/release-notes-0.18.1-16257.md
@@ -0,0 +1,6 @@
+Wallet changes
+--------------
+When creating a transaction with a fee above `-maxtxfee` (default 0.1 BTC),
+the RPC commands `walletcreatefundedpsbt` and `fundrawtransaction` will now fail
+instead of rounding down the fee. Beware that the `feeRate` argument is specified
+in BTC per kilobyte, not satoshi per byte.
diff --git a/src/policy/fees.h b/src/policy/fees.h
index 6e61f76178..16683bf5ad 100644
--- a/src/policy/fees.h
+++ b/src/policy/fees.h
@@ -43,7 +43,6 @@ enum class FeeReason {
PAYTXFEE,
FALLBACK,
REQUIRED,
- MAXTXFEE,
};
/* Used to determine type of fee estimation requested */
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index a2b295df21..c1eba61749 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -221,9 +221,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
return TransactionCreationFailed;
}
- // reject absurdly high fee. (This can never happen because the
- // wallet caps the fee at m_default_max_tx_fee. This merely serves as a
- // belt-and-suspenders check)
+ // Reject absurdly high fee
if (nFeeRequired > m_wallet->getDefaultMaxTxFee())
return AbsurdFee;
}
diff --git a/src/util/error.cpp b/src/util/error.cpp
index 68ffd8b046..9331a92ad7 100644
--- a/src/util/error.cpp
+++ b/src/util/error.cpp
@@ -27,6 +27,8 @@ std::string TransactionErrorString(const TransactionError err)
return "PSBTs not compatible (different transactions)";
case TransactionError::SIGHASH_MISMATCH:
return "Specified sighash value does not match existing value";
+ case TransactionError::MAX_FEE_EXCEEDED:
+ return "Fee exceeds maximum configured by -maxtxfee";
// no default case, so the compiler can warn about missing cases
}
assert(false);
diff --git a/src/util/error.h b/src/util/error.h
index d93309551b..0fd474b962 100644
--- a/src/util/error.h
+++ b/src/util/error.h
@@ -27,6 +27,7 @@ enum class TransactionError {
INVALID_PSBT,
PSBT_MISMATCH,
SIGHASH_MISMATCH,
+ MAX_FEE_EXCEEDED,
};
std::string TransactionErrorString(const TransactionError error);
diff --git a/src/util/fees.cpp b/src/util/fees.cpp
index 5fdaa1284c..cf16d5e44f 100644
--- a/src/util/fees.cpp
+++ b/src/util/fees.cpp
@@ -18,7 +18,6 @@ std::string StringForFeeReason(FeeReason reason) {
{FeeReason::PAYTXFEE, "PayTxFee set"},
{FeeReason::FALLBACK, "Fallback fee"},
{FeeReason::REQUIRED, "Minimum Required Fee"},
- {FeeReason::MAXTXFEE, "MaxTxFee limit"}
};
auto reason_string = fee_reason_strings.find(reason);
diff --git a/src/wallet/fees.cpp b/src/wallet/fees.cpp
index ad69e84358..2792058f2a 100644
--- a/src/wallet/fees.cpp
+++ b/src/wallet/fees.cpp
@@ -18,14 +18,7 @@ CAmount GetRequiredFee(const CWallet& wallet, unsigned int nTxBytes)
CAmount GetMinimumFee(const CWallet& wallet, unsigned int nTxBytes, const CCoinControl& coin_control, FeeCalculation* feeCalc)
{
- CAmount fee_needed = GetMinimumFeeRate(wallet, coin_control, feeCalc).GetFee(nTxBytes);
- // Always obey the maximum
- const CAmount max_tx_fee = wallet.m_default_max_tx_fee;
- if (fee_needed > max_tx_fee) {
- fee_needed = max_tx_fee;
- if (feeCalc) feeCalc->reason = FeeReason::MAXTXFEE;
- }
- return fee_needed;
+ return GetMinimumFeeRate(wallet, coin_control, feeCalc).GetFee(nTxBytes);
}
CFeeRate GetRequiredFeeRate(const CWallet& wallet)
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 16366a0c23..8807acb6b7 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2694,6 +2694,11 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
}
}
+ if (nFeeRet > this->m_default_max_tx_fee) {
+ strFailReason = TransactionErrorString(TransactionError::MAX_FEE_EXCEEDED);
+ return false;
+ }
+
return true;
}
diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
index d89fd6461f..cdf636e200 100755
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -662,6 +662,7 @@ class RawTransactionsTest(BitcoinTestFramework):
result = self.nodes[3].fundrawtransaction(rawtx) # uses min_relay_tx_fee (set by settxfee)
result2 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2*min_relay_tx_fee})
result3 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 10*min_relay_tx_fee})
+ assert_raises_rpc_error(-4, "Fee exceeds maximum configured by -maxtxfee", self.nodes[3].fundrawtransaction, rawtx, {"feeRate": 1})
result_fee_rate = result['fee'] * 1000 / count_bytes(result['hex'])
assert_fee_amount(result2['fee'], count_bytes(result2['hex']), 2 * result_fee_rate)
assert_fee_amount(result3['fee'], count_bytes(result3['hex']), 10 * result_fee_rate)
diff --git a/test/functional/rpc_psbt.py b/test/functional/rpc_psbt.py
index 430be6dd37..8bfa7a0238 100755
--- a/test/functional/rpc_psbt.py
+++ b/test/functional/rpc_psbt.py
@@ -9,6 +9,7 @@ from decimal import Decimal
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
+ assert_greater_than,
assert_raises_rpc_error,
connect_nodes_bi,
disconnect_nodes,
@@ -129,6 +130,15 @@ class PSBTTest(BitcoinTestFramework):
assert_equal(walletprocesspsbt_out['complete'], True)
self.nodes[1].sendrawtransaction(self.nodes[1].finalizepsbt(walletprocesspsbt_out['psbt'])['hex'])
+ # feeRate of 0.1 BTC / KB produces a total fee slightly below -maxtxfee (~0.05280000):
+ res = self.nodes[1].walletcreatefundedpsbt([{"txid":txid,"vout":p2wpkh_pos},{"txid":txid,"vout":p2sh_p2wpkh_pos},{"txid":txid,"vout":p2pkh_pos}], {self.nodes[1].getnewaddress():29.99}, 0, {"feeRate": 0.1})
+ assert_greater_than(res["fee"], 0.05)
+ assert_greater_than(0.06, res["fee"])
+
+ # feeRate of 10 BTC / KB produces a total fee well above -maxtxfee
+ # previously this was silenty capped at -maxtxfee
+ assert_raises_rpc_error(-4, "Fee exceeds maximum configured by -maxtxfee", self.nodes[1].walletcreatefundedpsbt, [{"txid":txid,"vout":p2wpkh_pos},{"txid":txid,"vout":p2sh_p2wpkh_pos},{"txid":txid,"vout":p2pkh_pos}], {self.nodes[1].getnewaddress():29.99}, 0, {"feeRate": 10})
+
# partially sign multisig things with node 1
psbtx = self.nodes[1].walletcreatefundedpsbt([{"txid":txid,"vout":p2wsh_pos},{"txid":txid,"vout":p2sh_pos},{"txid":txid,"vout":p2sh_p2wsh_pos}], {self.nodes[1].getnewaddress():29.99})['psbt']
walletprocesspsbt_out = self.nodes[1].walletprocesspsbt(psbtx)
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-10 01:51:39 +0000