aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/policy/policy.cpp39
-rw-r--r--src/policy/policy.h5
-rw-r--r--src/primitives/transaction.h37
-rw-r--r--src/qt/coincontroldialog.cpp7
-rw-r--r--src/qt/guiutil.cpp2
-rw-r--r--src/qt/paymentserver.cpp2
-rw-r--r--src/wallet/feebumper.cpp2
-rw-r--r--src/wallet/wallet.cpp10
8 files changed, 54 insertions, 50 deletions
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index 6f8b6c2953..2b19a6714b 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -15,6 +15,43 @@
#include <boost/foreach.hpp>
+CAmount GetDustThreshold(const CTxOut& txout, const CFeeRate& dustRelayFee)
+{
+ // "Dust" is defined in terms of dustRelayFee,
+ // which has units satoshis-per-kilobyte.
+ // If you'd pay more than 1/3 in fees
+ // to spend something, then we consider it dust.
+ // A typical spendable non-segwit txout is 34 bytes big, and will
+ // need a CTxIn of at least 148 bytes to spend:
+ // so dust is a spendable txout less than
+ // 546*dustRelayFee/1000 (in satoshis).
+ // A typical spendable segwit txout is 31 bytes big, and will
+ // need a CTxIn of at least 67 bytes to spend:
+ // so dust is a spendable txout less than
+ // 294*dustRelayFee/1000 (in satoshis).
+ if (txout.scriptPubKey.IsUnspendable())
+ return 0;
+
+ size_t nSize = GetSerializeSize(txout, SER_DISK, 0);
+ int witnessversion = 0;
+ std::vector<unsigned char> witnessprogram;
+
+ if (txout.scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) {
+ // sum the sizes of the parts of a transaction input
+ // with 75% segwit discount applied to the script size.
+ nSize += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
+ } else {
+ nSize += (32 + 4 + 1 + 107 + 4); // the 148 mentioned above
+ }
+
+ return 3 * dustRelayFee.GetFee(nSize);
+}
+
+bool IsDust(const CTxOut& txout, const CFeeRate& dustRelayFee)
+{
+ return (txout.nValue < GetDustThreshold(txout, dustRelayFee));
+}
+
/**
* Check transaction inputs to mitigate two
* potential denial-of-service attacks:
@@ -106,7 +143,7 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason, const bool witnes
else if ((whichType == TX_MULTISIG) && (!fIsBareMultisigStd)) {
reason = "bare-multisig";
return false;
- } else if (txout.IsDust(dustRelayFee)) {
+ } else if (IsDust(txout, ::dustRelayFee)) {
reason = "dust";
return false;
}
diff --git a/src/policy/policy.h b/src/policy/policy.h
index 6df541bc0f..24bf3fa5d7 100644
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -13,6 +13,7 @@
#include <string>
class CCoinsViewCache;
+class CTxOut;
/** Default for -blockmaxsize, which controls the maximum size of block the mining code will create **/
static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000;
@@ -72,6 +73,10 @@ static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_
static const unsigned int STANDARD_LOCKTIME_VERIFY_FLAGS = LOCKTIME_VERIFY_SEQUENCE |
LOCKTIME_MEDIAN_TIME_PAST;
+CAmount GetDustThreshold(const CTxOut& txout, const CFeeRate& dustRelayFee);
+
+bool IsDust(const CTxOut& txout, const CFeeRate& dustRelayFee);
+
bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType, const bool witnessEnabled = false);
/**
* Check for standard transaction types
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index 5059030309..00ac0b92b5 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -161,43 +161,6 @@ public:
return (nValue == -1);
}
- CAmount GetDustThreshold(const CFeeRate &minRelayTxFee) const
- {
- // "Dust" is defined in terms of CTransaction::minRelayTxFee,
- // which has units satoshis-per-kilobyte.
- // If you'd pay more than 1/3 in fees
- // to spend something, then we consider it dust.
- // A typical spendable non-segwit txout is 34 bytes big, and will
- // need a CTxIn of at least 148 bytes to spend:
- // so dust is a spendable txout less than
- // 546*minRelayTxFee/1000 (in satoshis).
- // A typical spendable segwit txout is 31 bytes big, and will
- // need a CTxIn of at least 67 bytes to spend:
- // so dust is a spendable txout less than
- // 294*minRelayTxFee/1000 (in satoshis).
- if (scriptPubKey.IsUnspendable())
- return 0;
-
- size_t nSize = GetSerializeSize(*this, SER_DISK, 0);
- int witnessversion = 0;
- std::vector<unsigned char> witnessprogram;
-
- if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) {
- // sum the sizes of the parts of a transaction input
- // with 75% segwit discount applied to the script size.
- nSize += (32 + 4 + 1 + (107 / WITNESS_SCALE_FACTOR) + 4);
- } else {
- nSize += (32 + 4 + 1 + 107 + 4); // the 148 mentioned above
- }
-
- return 3 * minRelayTxFee.GetFee(nSize);
- }
-
- bool IsDust(const CFeeRate &minRelayTxFee) const
- {
- return (nValue < GetDustThreshold(minRelayTxFee));
- }
-
friend bool operator==(const CTxOut& a, const CTxOut& b)
{
return (a.nValue == b.nValue &&
diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp
index 38ad6e9aab..2a331d4fae 100644
--- a/src/qt/coincontroldialog.cpp
+++ b/src/qt/coincontroldialog.cpp
@@ -434,8 +434,7 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
{
CTxOut txout(amount, (CScript)std::vector<unsigned char>(24, 0));
txDummy.vout.push_back(txout);
- if (txout.IsDust(dustRelayFee))
- fDust = true;
+ fDust |= IsDust(txout, ::dustRelayFee);
}
}
@@ -527,10 +526,10 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
if (nChange > 0 && nChange < MIN_CHANGE)
{
CTxOut txout(nChange, (CScript)std::vector<unsigned char>(24, 0));
- if (txout.IsDust(dustRelayFee))
+ if (IsDust(txout, ::dustRelayFee))
{
if (CoinControlDialog::fSubtractFeeFromAmount) // dust-change will be raised until no dust
- nChange = txout.GetDustThreshold(dustRelayFee);
+ nChange = GetDustThreshold(txout, ::dustRelayFee);
else
{
nPayFee += nChange;
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 3f3f9b9ccb..bffa81137b 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -251,7 +251,7 @@ bool isDust(const QString& address, const CAmount& amount)
CTxDestination dest = CBitcoinAddress(address.toStdString()).Get();
CScript script = GetScriptForDestination(dest);
CTxOut txOut(amount, script);
- return txOut.IsDust(dustRelayFee);
+ return IsDust(txOut, ::dustRelayFee);
}
QString HtmlEscape(const QString& str, bool fMultiLine)
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index dd75f12076..77fa6b2f3b 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -580,7 +580,7 @@ bool PaymentServer::processPaymentRequest(const PaymentRequestPlus& request, Sen
// Extract and check amounts
CTxOut txOut(sendingTo.second, sendingTo.first);
- if (txOut.IsDust(dustRelayFee)) {
+ if (IsDust(txOut, ::dustRelayFee)) {
Q_EMIT message(tr("Payment request error"), tr("Requested payment amount of %1 is too small (considered dust).")
.arg(BitcoinUnits::formatWithUnit(optionsModel->getDisplayUnit(), sendingTo.second)),
CClientUIInterface::MSG_ERROR);
diff --git a/src/wallet/feebumper.cpp b/src/wallet/feebumper.cpp
index f5b63c1ecd..b3cb6a718c 100644
--- a/src/wallet/feebumper.cpp
+++ b/src/wallet/feebumper.cpp
@@ -214,7 +214,7 @@ CFeeBumper::CFeeBumper(const CWallet *pWallet, const uint256 txidIn, int newConf
// If the output would become dust, discard it (converting the dust to fee)
poutput->nValue -= nDelta;
- if (poutput->nValue <= poutput->GetDustThreshold(::dustRelayFee)) {
+ if (poutput->nValue <= GetDustThreshold(*poutput, ::dustRelayFee)) {
LogPrint(BCLog::RPC, "Bumping fee and discarding dust output\n");
nNewFee += poutput->nValue;
mtx.vout.erase(mtx.vout.begin() + nOutput);
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index fa82c9c9df..ea329d6ebe 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2449,7 +2449,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
}
}
- if (txout.IsDust(dustRelayFee))
+ if (IsDust(txout, ::dustRelayFee))
{
if (recipient.fSubtractFeeFromAmount && nFeeRet > 0)
{
@@ -2514,16 +2514,16 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
// We do not move dust-change to fees, because the sender would end up paying more than requested.
// This would be against the purpose of the all-inclusive feature.
// So instead we raise the change and deduct from the recipient.
- if (nSubtractFeeFromAmount > 0 && newTxOut.IsDust(dustRelayFee))
+ if (nSubtractFeeFromAmount > 0 && IsDust(newTxOut, ::dustRelayFee))
{
- CAmount nDust = newTxOut.GetDustThreshold(dustRelayFee) - newTxOut.nValue;
+ CAmount nDust = GetDustThreshold(newTxOut, ::dustRelayFee) - newTxOut.nValue;
newTxOut.nValue += nDust; // raise change until no more dust
for (unsigned int i = 0; i < vecSend.size(); i++) // subtract from first recipient
{
if (vecSend[i].fSubtractFeeFromAmount)
{
txNew.vout[i].nValue -= nDust;
- if (txNew.vout[i].IsDust(dustRelayFee))
+ if (IsDust(txNew.vout[i], ::dustRelayFee))
{
strFailReason = _("The transaction amount is too small to send after the fee has been deducted");
return false;
@@ -2535,7 +2535,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
// Never create dust outputs; if we would, just
// add the dust to the fee.
- if (newTxOut.IsDust(dustRelayFee))
+ if (IsDust(newTxOut, ::dustRelayFee))
{
nChangePosInOut = -1;
nFeeRet += nChange;
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-10 09:20:04 +0000