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Merge #8601: Add option to opt into full-RBF when sending funds (rebase, original by petertodd)

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86726d8 Rename `-optintofullrbf` option to `-walletrbf` (Wladimir J. van der Laan)
05fa823 wallet: Add BIP125 comment for MAXINT-1/-2 behavior (Wladimir J. van der Laan)
152f45b Add option to opt into full-RBF when sending funds (Peter Todd)
This commit is contained in:
Wladimir J. van der Laan 2016-09-13 11:35:20 +02:00
commit 37ac67816a
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GPG Key ID: 74810B012346C9A6
2 changed files with 15 additions and 3 deletions
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15
src/wallet/wallet.cpp
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@ -40,6 +40,7 @@ CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET; unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET;
bool bSpendZeroConfChange = DEFAULT_SPEND_ZEROCONF_CHANGE; bool bSpendZeroConfChange = DEFAULT_SPEND_ZEROCONF_CHANGE;
bool fSendFreeTransactions = DEFAULT_SEND_FREE_TRANSACTIONS; bool fSendFreeTransactions = DEFAULT_SEND_FREE_TRANSACTIONS;
bool fWalletRbf = DEFAULT_WALLET_RBF;
const char * DEFAULT_WALLET_DAT = "wallet.dat"; const char * DEFAULT_WALLET_DAT = "wallet.dat";
const uint32_t BIP32_HARDENED_KEY_LIMIT = 0x80000000; const uint32_t BIP32_HARDENED_KEY_LIMIT = 0x80000000;
@ -2362,11 +2363,17 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
// Fill vin // Fill vin
// //
// Note how the sequence number is set to max()-1 so that the // Note how the sequence number is set to non-maxint so that
// nLockTime set above actually works. // the nLockTime set above actually works.
//
// BIP125 defines opt-in RBF as any nSequence < maxint-1, so
// we use the highest possible value in that range (maxint-2)
// to avoid conflicting with other possible uses of nSequence,
// and in the spirit of "smallest posible change from prior
// behavior."
BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins) BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(), txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(),
std::numeric_limits<unsigned int>::max()-1)); std::numeric_limits<unsigned int>::max() - (fWalletRbf ? 2 : 1)));
// Sign // Sign
int nIn = 0; int nIn = 0;
@ -3246,6 +3253,7 @@ std::string CWallet::GetWalletHelpString(bool showDebug)
strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE)); strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE));
strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET)); strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
strUsage += HelpMessageOpt("-usehd", _("Use hierarchical deterministic key generation (HD) after BIP32. Only has effect during wallet creation/first start") + " " + strprintf(_("(default: %u)"), DEFAULT_USE_HD_WALLET)); strUsage += HelpMessageOpt("-usehd", _("Use hierarchical deterministic key generation (HD) after BIP32. Only has effect during wallet creation/first start") + " " + strprintf(_("(default: %u)"), DEFAULT_USE_HD_WALLET));
strUsage += HelpMessageOpt("-walletrbf", strprintf(_("Send transactions with full-RBF opt-in enabled (default: %u)"), DEFAULT_WALLET_RBF));
strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup")); strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));
strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT)); strUsage += HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT));
strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST)); strUsage += HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST));
@ -3486,6 +3494,7 @@ bool CWallet::ParameterInteraction()
nTxConfirmTarget = GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET); nTxConfirmTarget = GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE); bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
fSendFreeTransactions = GetBoolArg("-sendfreetransactions", DEFAULT_SEND_FREE_TRANSACTIONS); fSendFreeTransactions = GetBoolArg("-sendfreetransactions", DEFAULT_SEND_FREE_TRANSACTIONS);
fWalletRbf = GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF);
return true; return true;
} }

3
src/wallet/wallet.h
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@ -37,6 +37,7 @@ extern CFeeRate payTxFee;
extern unsigned int nTxConfirmTarget; extern unsigned int nTxConfirmTarget;
extern bool bSpendZeroConfChange; extern bool bSpendZeroConfChange;
extern bool fSendFreeTransactions; extern bool fSendFreeTransactions;
extern bool fWalletRbf;
static const unsigned int DEFAULT_KEYPOOL_SIZE = 100; static const unsigned int DEFAULT_KEYPOOL_SIZE = 100;
//! -paytxfee default //! -paytxfee default
@ -53,6 +54,8 @@ static const bool DEFAULT_SPEND_ZEROCONF_CHANGE = true;
static const bool DEFAULT_SEND_FREE_TRANSACTIONS = false; static const bool DEFAULT_SEND_FREE_TRANSACTIONS = false;
//! -txconfirmtarget default //! -txconfirmtarget default
static const unsigned int DEFAULT_TX_CONFIRM_TARGET = 2; static const unsigned int DEFAULT_TX_CONFIRM_TARGET = 2;
//! -walletrbf default
static const bool DEFAULT_WALLET_RBF = false;
//! Largest (in bytes) free transaction we're willing to create //! Largest (in bytes) free transaction we're willing to create
static const unsigned int MAX_FREE_TRANSACTION_CREATE_SIZE = 1000; static const unsigned int MAX_FREE_TRANSACTION_CREATE_SIZE = 1000;
static const bool DEFAULT_WALLETBROADCAST = true; static const bool DEFAULT_WALLETBROADCAST = true;