1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2016 The Bitcoin Core developers
3 // Distributed under the MIT software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
6 #include "wallet/wallet.h"
9 #include "checkpoints.h"
11 #include "wallet/coincontrol.h"
12 #include "consensus/consensus.h"
13 #include "consensus/validation.h"
17 #include "validation.h"
19 #include "policy/fees.h"
20 #include "policy/policy.h"
21 #include "policy/rbf.h"
22 #include "primitives/block.h"
23 #include "primitives/transaction.h"
24 #include "script/script.h"
25 #include "script/sign.h"
26 #include "scheduler.h"
28 #include "txmempool.h"
30 #include "ui_interface.h"
31 #include "utilmoneystr.h"
35 #include <boost/algorithm/string/replace.hpp>
36 #include <boost/thread.hpp>
38 std::vector
<CWalletRef
> vpwallets
;
39 /** Transaction fee set by the user */
40 CFeeRate
payTxFee(DEFAULT_TRANSACTION_FEE
);
41 unsigned int nTxConfirmTarget
= DEFAULT_TX_CONFIRM_TARGET
;
42 bool bSpendZeroConfChange
= DEFAULT_SPEND_ZEROCONF_CHANGE
;
43 bool fWalletRbf
= DEFAULT_WALLET_RBF
;
45 const char * DEFAULT_WALLET_DAT
= "wallet.dat";
46 const uint32_t BIP32_HARDENED_KEY_LIMIT
= 0x80000000;
49 * Fees smaller than this (in satoshi) are considered zero fee (for transaction creation)
50 * Override with -mintxfee
52 CFeeRate
CWallet::minTxFee
= CFeeRate(DEFAULT_TRANSACTION_MINFEE
);
54 * If fee estimation does not have enough data to provide estimates, use this fee instead.
55 * Has no effect if not using fee estimation
56 * Override with -fallbackfee
58 CFeeRate
CWallet::fallbackFee
= CFeeRate(DEFAULT_FALLBACK_FEE
);
60 CFeeRate
CWallet::m_discard_rate
= CFeeRate(DEFAULT_DISCARD_FEE
);
62 const uint256
CMerkleTx::ABANDON_HASH(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
64 /** @defgroup mapWallet
69 struct CompareValueOnly
71 bool operator()(const CInputCoin
& t1
,
72 const CInputCoin
& t2
) const
74 return t1
.txout
.nValue
< t2
.txout
.nValue
;
78 std::string
COutput::ToString() const
80 return strprintf("COutput(%s, %d, %d) [%s]", tx
->GetHash().ToString(), i
, nDepth
, FormatMoney(tx
->tx
->vout
[i
].nValue
));
83 class CAffectedKeysVisitor
: public boost::static_visitor
<void> {
85 const CKeyStore
&keystore
;
86 std::vector
<CKeyID
> &vKeys
;
89 CAffectedKeysVisitor(const CKeyStore
&keystoreIn
, std::vector
<CKeyID
> &vKeysIn
) : keystore(keystoreIn
), vKeys(vKeysIn
) {}
91 void Process(const CScript
&script
) {
93 std::vector
<CTxDestination
> vDest
;
95 if (ExtractDestinations(script
, type
, vDest
, nRequired
)) {
96 for (const CTxDestination
&dest
: vDest
)
97 boost::apply_visitor(*this, dest
);
101 void operator()(const CKeyID
&keyId
) {
102 if (keystore
.HaveKey(keyId
))
103 vKeys
.push_back(keyId
);
106 void operator()(const CScriptID
&scriptId
) {
108 if (keystore
.GetCScript(scriptId
, script
))
112 void operator()(const CNoDestination
&none
) {}
115 const CWalletTx
* CWallet::GetWalletTx(const uint256
& hash
) const
118 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(hash
);
119 if (it
== mapWallet
.end())
121 return &(it
->second
);
124 CPubKey
CWallet::GenerateNewKey(CWalletDB
&walletdb
, bool internal
)
126 AssertLockHeld(cs_wallet
); // mapKeyMetadata
127 bool fCompressed
= CanSupportFeature(FEATURE_COMPRPUBKEY
); // default to compressed public keys if we want 0.6.0 wallets
131 // Create new metadata
132 int64_t nCreationTime
= GetTime();
133 CKeyMetadata
metadata(nCreationTime
);
135 // use HD key derivation if HD was enabled during wallet creation
137 DeriveNewChildKey(walletdb
, metadata
, secret
, (CanSupportFeature(FEATURE_HD_SPLIT
) ? internal
: false));
139 secret
.MakeNewKey(fCompressed
);
142 // Compressed public keys were introduced in version 0.6.0
144 SetMinVersion(FEATURE_COMPRPUBKEY
);
147 CPubKey pubkey
= secret
.GetPubKey();
148 assert(secret
.VerifyPubKey(pubkey
));
150 mapKeyMetadata
[pubkey
.GetID()] = metadata
;
151 UpdateTimeFirstKey(nCreationTime
);
153 if (!AddKeyPubKeyWithDB(walletdb
, secret
, pubkey
)) {
154 throw std::runtime_error(std::string(__func__
) + ": AddKey failed");
159 void CWallet::DeriveNewChildKey(CWalletDB
&walletdb
, CKeyMetadata
& metadata
, CKey
& secret
, bool internal
)
161 // for now we use a fixed keypath scheme of m/0'/0'/k
162 CKey key
; //master key seed (256bit)
163 CExtKey masterKey
; //hd master key
164 CExtKey accountKey
; //key at m/0'
165 CExtKey chainChildKey
; //key at m/0'/0' (external) or m/0'/1' (internal)
166 CExtKey childKey
; //key at m/0'/0'/<n>'
168 // try to get the master key
169 if (!GetKey(hdChain
.masterKeyID
, key
))
170 throw std::runtime_error(std::string(__func__
) + ": Master key not found");
172 masterKey
.SetMaster(key
.begin(), key
.size());
175 // use hardened derivation (child keys >= 0x80000000 are hardened after bip32)
176 masterKey
.Derive(accountKey
, BIP32_HARDENED_KEY_LIMIT
);
178 // derive m/0'/0' (external chain) OR m/0'/1' (internal chain)
179 assert(internal
? CanSupportFeature(FEATURE_HD_SPLIT
) : true);
180 accountKey
.Derive(chainChildKey
, BIP32_HARDENED_KEY_LIMIT
+(internal
? 1 : 0));
182 // derive child key at next index, skip keys already known to the wallet
184 // always derive hardened keys
185 // childIndex | BIP32_HARDENED_KEY_LIMIT = derive childIndex in hardened child-index-range
186 // example: 1 | BIP32_HARDENED_KEY_LIMIT == 0x80000001 == 2147483649
188 chainChildKey
.Derive(childKey
, hdChain
.nInternalChainCounter
| BIP32_HARDENED_KEY_LIMIT
);
189 metadata
.hdKeypath
= "m/0'/1'/" + std::to_string(hdChain
.nInternalChainCounter
) + "'";
190 hdChain
.nInternalChainCounter
++;
193 chainChildKey
.Derive(childKey
, hdChain
.nExternalChainCounter
| BIP32_HARDENED_KEY_LIMIT
);
194 metadata
.hdKeypath
= "m/0'/0'/" + std::to_string(hdChain
.nExternalChainCounter
) + "'";
195 hdChain
.nExternalChainCounter
++;
197 } while (HaveKey(childKey
.key
.GetPubKey().GetID()));
198 secret
= childKey
.key
;
199 metadata
.hdMasterKeyID
= hdChain
.masterKeyID
;
200 // update the chain model in the database
201 if (!walletdb
.WriteHDChain(hdChain
))
202 throw std::runtime_error(std::string(__func__
) + ": Writing HD chain model failed");
205 bool CWallet::AddKeyPubKeyWithDB(CWalletDB
&walletdb
, const CKey
& secret
, const CPubKey
&pubkey
)
207 AssertLockHeld(cs_wallet
); // mapKeyMetadata
209 // CCryptoKeyStore has no concept of wallet databases, but calls AddCryptedKey
210 // which is overridden below. To avoid flushes, the database handle is
211 // tunneled through to it.
212 bool needsDB
= !pwalletdbEncryption
;
214 pwalletdbEncryption
= &walletdb
;
216 if (!CCryptoKeyStore::AddKeyPubKey(secret
, pubkey
)) {
217 if (needsDB
) pwalletdbEncryption
= NULL
;
220 if (needsDB
) pwalletdbEncryption
= NULL
;
222 // check if we need to remove from watch-only
224 script
= GetScriptForDestination(pubkey
.GetID());
225 if (HaveWatchOnly(script
)) {
226 RemoveWatchOnly(script
);
228 script
= GetScriptForRawPubKey(pubkey
);
229 if (HaveWatchOnly(script
)) {
230 RemoveWatchOnly(script
);
234 return walletdb
.WriteKey(pubkey
,
236 mapKeyMetadata
[pubkey
.GetID()]);
241 bool CWallet::AddKeyPubKey(const CKey
& secret
, const CPubKey
&pubkey
)
243 CWalletDB
walletdb(*dbw
);
244 return CWallet::AddKeyPubKeyWithDB(walletdb
, secret
, pubkey
);
247 bool CWallet::AddCryptedKey(const CPubKey
&vchPubKey
,
248 const std::vector
<unsigned char> &vchCryptedSecret
)
250 if (!CCryptoKeyStore::AddCryptedKey(vchPubKey
, vchCryptedSecret
))
254 if (pwalletdbEncryption
)
255 return pwalletdbEncryption
->WriteCryptedKey(vchPubKey
,
257 mapKeyMetadata
[vchPubKey
.GetID()]);
259 return CWalletDB(*dbw
).WriteCryptedKey(vchPubKey
,
261 mapKeyMetadata
[vchPubKey
.GetID()]);
265 bool CWallet::LoadKeyMetadata(const CTxDestination
& keyID
, const CKeyMetadata
&meta
)
267 AssertLockHeld(cs_wallet
); // mapKeyMetadata
268 UpdateTimeFirstKey(meta
.nCreateTime
);
269 mapKeyMetadata
[keyID
] = meta
;
273 bool CWallet::LoadCryptedKey(const CPubKey
&vchPubKey
, const std::vector
<unsigned char> &vchCryptedSecret
)
275 return CCryptoKeyStore::AddCryptedKey(vchPubKey
, vchCryptedSecret
);
279 * Update wallet first key creation time. This should be called whenever keys
280 * are added to the wallet, with the oldest key creation time.
282 void CWallet::UpdateTimeFirstKey(int64_t nCreateTime
)
284 AssertLockHeld(cs_wallet
);
285 if (nCreateTime
<= 1) {
286 // Cannot determine birthday information, so set the wallet birthday to
287 // the beginning of time.
289 } else if (!nTimeFirstKey
|| nCreateTime
< nTimeFirstKey
) {
290 nTimeFirstKey
= nCreateTime
;
294 bool CWallet::AddCScript(const CScript
& redeemScript
)
296 if (!CCryptoKeyStore::AddCScript(redeemScript
))
298 return CWalletDB(*dbw
).WriteCScript(Hash160(redeemScript
), redeemScript
);
301 bool CWallet::LoadCScript(const CScript
& redeemScript
)
303 /* A sanity check was added in pull #3843 to avoid adding redeemScripts
304 * that never can be redeemed. However, old wallets may still contain
305 * these. Do not add them to the wallet and warn. */
306 if (redeemScript
.size() > MAX_SCRIPT_ELEMENT_SIZE
)
308 std::string strAddr
= CBitcoinAddress(CScriptID(redeemScript
)).ToString();
309 LogPrintf("%s: Warning: This wallet contains a redeemScript of size %i which exceeds maximum size %i thus can never be redeemed. Do not use address %s.\n",
310 __func__
, redeemScript
.size(), MAX_SCRIPT_ELEMENT_SIZE
, strAddr
);
314 return CCryptoKeyStore::AddCScript(redeemScript
);
317 bool CWallet::AddWatchOnly(const CScript
& dest
)
319 if (!CCryptoKeyStore::AddWatchOnly(dest
))
321 const CKeyMetadata
& meta
= mapKeyMetadata
[CScriptID(dest
)];
322 UpdateTimeFirstKey(meta
.nCreateTime
);
323 NotifyWatchonlyChanged(true);
324 return CWalletDB(*dbw
).WriteWatchOnly(dest
, meta
);
327 bool CWallet::AddWatchOnly(const CScript
& dest
, int64_t nCreateTime
)
329 mapKeyMetadata
[CScriptID(dest
)].nCreateTime
= nCreateTime
;
330 return AddWatchOnly(dest
);
333 bool CWallet::RemoveWatchOnly(const CScript
&dest
)
335 AssertLockHeld(cs_wallet
);
336 if (!CCryptoKeyStore::RemoveWatchOnly(dest
))
338 if (!HaveWatchOnly())
339 NotifyWatchonlyChanged(false);
340 if (!CWalletDB(*dbw
).EraseWatchOnly(dest
))
346 bool CWallet::LoadWatchOnly(const CScript
&dest
)
348 return CCryptoKeyStore::AddWatchOnly(dest
);
351 bool CWallet::Unlock(const SecureString
& strWalletPassphrase
)
354 CKeyingMaterial _vMasterKey
;
358 for (const MasterKeyMap::value_type
& pMasterKey
: mapMasterKeys
)
360 if(!crypter
.SetKeyFromPassphrase(strWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
362 if (!crypter
.Decrypt(pMasterKey
.second
.vchCryptedKey
, _vMasterKey
))
363 continue; // try another master key
364 if (CCryptoKeyStore::Unlock(_vMasterKey
))
371 bool CWallet::ChangeWalletPassphrase(const SecureString
& strOldWalletPassphrase
, const SecureString
& strNewWalletPassphrase
)
373 bool fWasLocked
= IsLocked();
380 CKeyingMaterial _vMasterKey
;
381 for (MasterKeyMap::value_type
& pMasterKey
: mapMasterKeys
)
383 if(!crypter
.SetKeyFromPassphrase(strOldWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
385 if (!crypter
.Decrypt(pMasterKey
.second
.vchCryptedKey
, _vMasterKey
))
387 if (CCryptoKeyStore::Unlock(_vMasterKey
))
389 int64_t nStartTime
= GetTimeMillis();
390 crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
);
391 pMasterKey
.second
.nDeriveIterations
= pMasterKey
.second
.nDeriveIterations
* (100 / ((double)(GetTimeMillis() - nStartTime
)));
393 nStartTime
= GetTimeMillis();
394 crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
);
395 pMasterKey
.second
.nDeriveIterations
= (pMasterKey
.second
.nDeriveIterations
+ pMasterKey
.second
.nDeriveIterations
* 100 / ((double)(GetTimeMillis() - nStartTime
))) / 2;
397 if (pMasterKey
.second
.nDeriveIterations
< 25000)
398 pMasterKey
.second
.nDeriveIterations
= 25000;
400 LogPrintf("Wallet passphrase changed to an nDeriveIterations of %i\n", pMasterKey
.second
.nDeriveIterations
);
402 if (!crypter
.SetKeyFromPassphrase(strNewWalletPassphrase
, pMasterKey
.second
.vchSalt
, pMasterKey
.second
.nDeriveIterations
, pMasterKey
.second
.nDerivationMethod
))
404 if (!crypter
.Encrypt(_vMasterKey
, pMasterKey
.second
.vchCryptedKey
))
406 CWalletDB(*dbw
).WriteMasterKey(pMasterKey
.first
, pMasterKey
.second
);
417 void CWallet::SetBestChain(const CBlockLocator
& loc
)
419 CWalletDB
walletdb(*dbw
);
420 walletdb
.WriteBestBlock(loc
);
423 bool CWallet::SetMinVersion(enum WalletFeature nVersion
, CWalletDB
* pwalletdbIn
, bool fExplicit
)
425 LOCK(cs_wallet
); // nWalletVersion
426 if (nWalletVersion
>= nVersion
)
429 // when doing an explicit upgrade, if we pass the max version permitted, upgrade all the way
430 if (fExplicit
&& nVersion
> nWalletMaxVersion
)
431 nVersion
= FEATURE_LATEST
;
433 nWalletVersion
= nVersion
;
435 if (nVersion
> nWalletMaxVersion
)
436 nWalletMaxVersion
= nVersion
;
439 CWalletDB
* pwalletdb
= pwalletdbIn
? pwalletdbIn
: new CWalletDB(*dbw
);
440 if (nWalletVersion
> 40000)
441 pwalletdb
->WriteMinVersion(nWalletVersion
);
449 bool CWallet::SetMaxVersion(int nVersion
)
451 LOCK(cs_wallet
); // nWalletVersion, nWalletMaxVersion
452 // cannot downgrade below current version
453 if (nWalletVersion
> nVersion
)
456 nWalletMaxVersion
= nVersion
;
461 std::set
<uint256
> CWallet::GetConflicts(const uint256
& txid
) const
463 std::set
<uint256
> result
;
464 AssertLockHeld(cs_wallet
);
466 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(txid
);
467 if (it
== mapWallet
.end())
469 const CWalletTx
& wtx
= it
->second
;
471 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
;
473 for (const CTxIn
& txin
: wtx
.tx
->vin
)
475 if (mapTxSpends
.count(txin
.prevout
) <= 1)
476 continue; // No conflict if zero or one spends
477 range
= mapTxSpends
.equal_range(txin
.prevout
);
478 for (TxSpends::const_iterator _it
= range
.first
; _it
!= range
.second
; ++_it
)
479 result
.insert(_it
->second
);
484 bool CWallet::HasWalletSpend(const uint256
& txid
) const
486 AssertLockHeld(cs_wallet
);
487 auto iter
= mapTxSpends
.lower_bound(COutPoint(txid
, 0));
488 return (iter
!= mapTxSpends
.end() && iter
->first
.hash
== txid
);
491 void CWallet::Flush(bool shutdown
)
493 dbw
->Flush(shutdown
);
496 bool CWallet::Verify()
498 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
))
501 uiInterface
.InitMessage(_("Verifying wallet(s)..."));
503 // Keep track of each wallet absolute path to detect duplicates.
504 std::set
<fs::path
> wallet_paths
;
506 for (const std::string
& walletFile
: gArgs
.GetArgs("-wallet")) {
507 if (boost::filesystem::path(walletFile
).filename() != walletFile
) {
508 return InitError(strprintf(_("Error loading wallet %s. -wallet parameter must only specify a filename (not a path)."), walletFile
));
511 if (SanitizeString(walletFile
, SAFE_CHARS_FILENAME
) != walletFile
) {
512 return InitError(strprintf(_("Error loading wallet %s. Invalid characters in -wallet filename."), walletFile
));
515 fs::path wallet_path
= fs::absolute(walletFile
, GetDataDir());
517 if (fs::exists(wallet_path
) && (!fs::is_regular_file(wallet_path
) || fs::is_symlink(wallet_path
))) {
518 return InitError(strprintf(_("Error loading wallet %s. -wallet filename must be a regular file."), walletFile
));
521 if (!wallet_paths
.insert(wallet_path
).second
) {
522 return InitError(strprintf(_("Error loading wallet %s. Duplicate -wallet filename specified."), walletFile
));
525 std::string strError
;
526 if (!CWalletDB::VerifyEnvironment(walletFile
, GetDataDir().string(), strError
)) {
527 return InitError(strError
);
530 if (GetBoolArg("-salvagewallet", false)) {
531 // Recover readable keypairs:
533 std::string backup_filename
;
534 if (!CWalletDB::Recover(walletFile
, (void *)&dummyWallet
, CWalletDB::RecoverKeysOnlyFilter
, backup_filename
)) {
539 std::string strWarning
;
540 bool dbV
= CWalletDB::VerifyDatabaseFile(walletFile
, GetDataDir().string(), strWarning
, strError
);
541 if (!strWarning
.empty()) {
542 InitWarning(strWarning
);
553 void CWallet::SyncMetaData(std::pair
<TxSpends::iterator
, TxSpends::iterator
> range
)
555 // We want all the wallet transactions in range to have the same metadata as
556 // the oldest (smallest nOrderPos).
557 // So: find smallest nOrderPos:
559 int nMinOrderPos
= std::numeric_limits
<int>::max();
560 const CWalletTx
* copyFrom
= NULL
;
561 for (TxSpends::iterator it
= range
.first
; it
!= range
.second
; ++it
)
563 const uint256
& hash
= it
->second
;
564 int n
= mapWallet
[hash
].nOrderPos
;
565 if (n
< nMinOrderPos
)
568 copyFrom
= &mapWallet
[hash
];
571 // Now copy data from copyFrom to rest:
572 for (TxSpends::iterator it
= range
.first
; it
!= range
.second
; ++it
)
574 const uint256
& hash
= it
->second
;
575 CWalletTx
* copyTo
= &mapWallet
[hash
];
576 if (copyFrom
== copyTo
) continue;
577 if (!copyFrom
->IsEquivalentTo(*copyTo
)) continue;
578 copyTo
->mapValue
= copyFrom
->mapValue
;
579 copyTo
->vOrderForm
= copyFrom
->vOrderForm
;
580 // fTimeReceivedIsTxTime not copied on purpose
581 // nTimeReceived not copied on purpose
582 copyTo
->nTimeSmart
= copyFrom
->nTimeSmart
;
583 copyTo
->fFromMe
= copyFrom
->fFromMe
;
584 copyTo
->strFromAccount
= copyFrom
->strFromAccount
;
585 // nOrderPos not copied on purpose
586 // cached members not copied on purpose
591 * Outpoint is spent if any non-conflicted transaction
594 bool CWallet::IsSpent(const uint256
& hash
, unsigned int n
) const
596 const COutPoint
outpoint(hash
, n
);
597 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
;
598 range
= mapTxSpends
.equal_range(outpoint
);
600 for (TxSpends::const_iterator it
= range
.first
; it
!= range
.second
; ++it
)
602 const uint256
& wtxid
= it
->second
;
603 std::map
<uint256
, CWalletTx
>::const_iterator mit
= mapWallet
.find(wtxid
);
604 if (mit
!= mapWallet
.end()) {
605 int depth
= mit
->second
.GetDepthInMainChain();
606 if (depth
> 0 || (depth
== 0 && !mit
->second
.isAbandoned()))
607 return true; // Spent
613 void CWallet::AddToSpends(const COutPoint
& outpoint
, const uint256
& wtxid
)
615 mapTxSpends
.insert(std::make_pair(outpoint
, wtxid
));
617 std::pair
<TxSpends::iterator
, TxSpends::iterator
> range
;
618 range
= mapTxSpends
.equal_range(outpoint
);
623 void CWallet::AddToSpends(const uint256
& wtxid
)
625 assert(mapWallet
.count(wtxid
));
626 CWalletTx
& thisTx
= mapWallet
[wtxid
];
627 if (thisTx
.IsCoinBase()) // Coinbases don't spend anything!
630 for (const CTxIn
& txin
: thisTx
.tx
->vin
)
631 AddToSpends(txin
.prevout
, wtxid
);
634 bool CWallet::EncryptWallet(const SecureString
& strWalletPassphrase
)
639 CKeyingMaterial _vMasterKey
;
641 _vMasterKey
.resize(WALLET_CRYPTO_KEY_SIZE
);
642 GetStrongRandBytes(&_vMasterKey
[0], WALLET_CRYPTO_KEY_SIZE
);
644 CMasterKey kMasterKey
;
646 kMasterKey
.vchSalt
.resize(WALLET_CRYPTO_SALT_SIZE
);
647 GetStrongRandBytes(&kMasterKey
.vchSalt
[0], WALLET_CRYPTO_SALT_SIZE
);
650 int64_t nStartTime
= GetTimeMillis();
651 crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, 25000, kMasterKey
.nDerivationMethod
);
652 kMasterKey
.nDeriveIterations
= 2500000 / ((double)(GetTimeMillis() - nStartTime
));
654 nStartTime
= GetTimeMillis();
655 crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, kMasterKey
.nDeriveIterations
, kMasterKey
.nDerivationMethod
);
656 kMasterKey
.nDeriveIterations
= (kMasterKey
.nDeriveIterations
+ kMasterKey
.nDeriveIterations
* 100 / ((double)(GetTimeMillis() - nStartTime
))) / 2;
658 if (kMasterKey
.nDeriveIterations
< 25000)
659 kMasterKey
.nDeriveIterations
= 25000;
661 LogPrintf("Encrypting Wallet with an nDeriveIterations of %i\n", kMasterKey
.nDeriveIterations
);
663 if (!crypter
.SetKeyFromPassphrase(strWalletPassphrase
, kMasterKey
.vchSalt
, kMasterKey
.nDeriveIterations
, kMasterKey
.nDerivationMethod
))
665 if (!crypter
.Encrypt(_vMasterKey
, kMasterKey
.vchCryptedKey
))
670 mapMasterKeys
[++nMasterKeyMaxID
] = kMasterKey
;
671 assert(!pwalletdbEncryption
);
672 pwalletdbEncryption
= new CWalletDB(*dbw
);
673 if (!pwalletdbEncryption
->TxnBegin()) {
674 delete pwalletdbEncryption
;
675 pwalletdbEncryption
= NULL
;
678 pwalletdbEncryption
->WriteMasterKey(nMasterKeyMaxID
, kMasterKey
);
680 if (!EncryptKeys(_vMasterKey
))
682 pwalletdbEncryption
->TxnAbort();
683 delete pwalletdbEncryption
;
684 // We now probably have half of our keys encrypted in memory, and half not...
685 // die and let the user reload the unencrypted wallet.
689 // Encryption was introduced in version 0.4.0
690 SetMinVersion(FEATURE_WALLETCRYPT
, pwalletdbEncryption
, true);
692 if (!pwalletdbEncryption
->TxnCommit()) {
693 delete pwalletdbEncryption
;
694 // We now have keys encrypted in memory, but not on disk...
695 // die to avoid confusion and let the user reload the unencrypted wallet.
699 delete pwalletdbEncryption
;
700 pwalletdbEncryption
= NULL
;
703 Unlock(strWalletPassphrase
);
705 // if we are using HD, replace the HD master key (seed) with a new one
707 if (!SetHDMasterKey(GenerateNewHDMasterKey())) {
715 // Need to completely rewrite the wallet file; if we don't, bdb might keep
716 // bits of the unencrypted private key in slack space in the database file.
720 NotifyStatusChanged(this);
725 DBErrors
CWallet::ReorderTransactions()
728 CWalletDB
walletdb(*dbw
);
730 // Old wallets didn't have any defined order for transactions
731 // Probably a bad idea to change the output of this
733 // First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
734 typedef std::pair
<CWalletTx
*, CAccountingEntry
*> TxPair
;
735 typedef std::multimap
<int64_t, TxPair
> TxItems
;
738 for (std::map
<uint256
, CWalletTx
>::iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
740 CWalletTx
* wtx
= &((*it
).second
);
741 txByTime
.insert(std::make_pair(wtx
->nTimeReceived
, TxPair(wtx
, (CAccountingEntry
*)0)));
743 std::list
<CAccountingEntry
> acentries
;
744 walletdb
.ListAccountCreditDebit("", acentries
);
745 for (CAccountingEntry
& entry
: acentries
)
747 txByTime
.insert(std::make_pair(entry
.nTime
, TxPair((CWalletTx
*)0, &entry
)));
751 std::vector
<int64_t> nOrderPosOffsets
;
752 for (TxItems::iterator it
= txByTime
.begin(); it
!= txByTime
.end(); ++it
)
754 CWalletTx
*const pwtx
= (*it
).second
.first
;
755 CAccountingEntry
*const pacentry
= (*it
).second
.second
;
756 int64_t& nOrderPos
= (pwtx
!= 0) ? pwtx
->nOrderPos
: pacentry
->nOrderPos
;
760 nOrderPos
= nOrderPosNext
++;
761 nOrderPosOffsets
.push_back(nOrderPos
);
765 if (!walletdb
.WriteTx(*pwtx
))
769 if (!walletdb
.WriteAccountingEntry(pacentry
->nEntryNo
, *pacentry
))
774 int64_t nOrderPosOff
= 0;
775 for (const int64_t& nOffsetStart
: nOrderPosOffsets
)
777 if (nOrderPos
>= nOffsetStart
)
780 nOrderPos
+= nOrderPosOff
;
781 nOrderPosNext
= std::max(nOrderPosNext
, nOrderPos
+ 1);
786 // Since we're changing the order, write it back
789 if (!walletdb
.WriteTx(*pwtx
))
793 if (!walletdb
.WriteAccountingEntry(pacentry
->nEntryNo
, *pacentry
))
797 walletdb
.WriteOrderPosNext(nOrderPosNext
);
802 int64_t CWallet::IncOrderPosNext(CWalletDB
*pwalletdb
)
804 AssertLockHeld(cs_wallet
); // nOrderPosNext
805 int64_t nRet
= nOrderPosNext
++;
807 pwalletdb
->WriteOrderPosNext(nOrderPosNext
);
809 CWalletDB(*dbw
).WriteOrderPosNext(nOrderPosNext
);
814 bool CWallet::AccountMove(std::string strFrom
, std::string strTo
, CAmount nAmount
, std::string strComment
)
816 CWalletDB
walletdb(*dbw
);
817 if (!walletdb
.TxnBegin())
820 int64_t nNow
= GetAdjustedTime();
823 CAccountingEntry debit
;
824 debit
.nOrderPos
= IncOrderPosNext(&walletdb
);
825 debit
.strAccount
= strFrom
;
826 debit
.nCreditDebit
= -nAmount
;
828 debit
.strOtherAccount
= strTo
;
829 debit
.strComment
= strComment
;
830 AddAccountingEntry(debit
, &walletdb
);
833 CAccountingEntry credit
;
834 credit
.nOrderPos
= IncOrderPosNext(&walletdb
);
835 credit
.strAccount
= strTo
;
836 credit
.nCreditDebit
= nAmount
;
838 credit
.strOtherAccount
= strFrom
;
839 credit
.strComment
= strComment
;
840 AddAccountingEntry(credit
, &walletdb
);
842 if (!walletdb
.TxnCommit())
848 bool CWallet::GetAccountPubkey(CPubKey
&pubKey
, std::string strAccount
, bool bForceNew
)
850 CWalletDB
walletdb(*dbw
);
853 walletdb
.ReadAccount(strAccount
, account
);
856 if (!account
.vchPubKey
.IsValid())
859 // Check if the current key has been used
860 CScript scriptPubKey
= GetScriptForDestination(account
.vchPubKey
.GetID());
861 for (std::map
<uint256
, CWalletTx
>::iterator it
= mapWallet
.begin();
862 it
!= mapWallet
.end() && account
.vchPubKey
.IsValid();
864 for (const CTxOut
& txout
: (*it
).second
.tx
->vout
)
865 if (txout
.scriptPubKey
== scriptPubKey
) {
872 // Generate a new key
874 if (!GetKeyFromPool(account
.vchPubKey
, false))
877 SetAddressBook(account
.vchPubKey
.GetID(), strAccount
, "receive");
878 walletdb
.WriteAccount(strAccount
, account
);
881 pubKey
= account
.vchPubKey
;
886 void CWallet::MarkDirty()
890 for (std::pair
<const uint256
, CWalletTx
>& item
: mapWallet
)
891 item
.second
.MarkDirty();
895 bool CWallet::MarkReplaced(const uint256
& originalHash
, const uint256
& newHash
)
899 auto mi
= mapWallet
.find(originalHash
);
901 // There is a bug if MarkReplaced is not called on an existing wallet transaction.
902 assert(mi
!= mapWallet
.end());
904 CWalletTx
& wtx
= (*mi
).second
;
906 // Ensure for now that we're not overwriting data
907 assert(wtx
.mapValue
.count("replaced_by_txid") == 0);
909 wtx
.mapValue
["replaced_by_txid"] = newHash
.ToString();
911 CWalletDB
walletdb(*dbw
, "r+");
914 if (!walletdb
.WriteTx(wtx
)) {
915 LogPrintf("%s: Updating walletdb tx %s failed", __func__
, wtx
.GetHash().ToString());
919 NotifyTransactionChanged(this, originalHash
, CT_UPDATED
);
924 bool CWallet::AddToWallet(const CWalletTx
& wtxIn
, bool fFlushOnClose
)
928 CWalletDB
walletdb(*dbw
, "r+", fFlushOnClose
);
930 uint256 hash
= wtxIn
.GetHash();
932 // Inserts only if not already there, returns tx inserted or tx found
933 std::pair
<std::map
<uint256
, CWalletTx
>::iterator
, bool> ret
= mapWallet
.insert(std::make_pair(hash
, wtxIn
));
934 CWalletTx
& wtx
= (*ret
.first
).second
;
935 wtx
.BindWallet(this);
936 bool fInsertedNew
= ret
.second
;
939 wtx
.nTimeReceived
= GetAdjustedTime();
940 wtx
.nOrderPos
= IncOrderPosNext(&walletdb
);
941 wtxOrdered
.insert(std::make_pair(wtx
.nOrderPos
, TxPair(&wtx
, (CAccountingEntry
*)0)));
942 wtx
.nTimeSmart
= ComputeTimeSmart(wtx
);
946 bool fUpdated
= false;
950 if (!wtxIn
.hashUnset() && wtxIn
.hashBlock
!= wtx
.hashBlock
)
952 wtx
.hashBlock
= wtxIn
.hashBlock
;
955 // If no longer abandoned, update
956 if (wtxIn
.hashBlock
.IsNull() && wtx
.isAbandoned())
958 wtx
.hashBlock
= wtxIn
.hashBlock
;
961 if (wtxIn
.nIndex
!= -1 && (wtxIn
.nIndex
!= wtx
.nIndex
))
963 wtx
.nIndex
= wtxIn
.nIndex
;
966 if (wtxIn
.fFromMe
&& wtxIn
.fFromMe
!= wtx
.fFromMe
)
968 wtx
.fFromMe
= wtxIn
.fFromMe
;
974 LogPrintf("AddToWallet %s %s%s\n", wtxIn
.GetHash().ToString(), (fInsertedNew
? "new" : ""), (fUpdated
? "update" : ""));
977 if (fInsertedNew
|| fUpdated
)
978 if (!walletdb
.WriteTx(wtx
))
981 // Break debit/credit balance caches:
984 // Notify UI of new or updated transaction
985 NotifyTransactionChanged(this, hash
, fInsertedNew
? CT_NEW
: CT_UPDATED
);
987 // notify an external script when a wallet transaction comes in or is updated
988 std::string strCmd
= GetArg("-walletnotify", "");
990 if ( !strCmd
.empty())
992 boost::replace_all(strCmd
, "%s", wtxIn
.GetHash().GetHex());
993 boost::thread
t(runCommand
, strCmd
); // thread runs free
999 bool CWallet::LoadToWallet(const CWalletTx
& wtxIn
)
1001 uint256 hash
= wtxIn
.GetHash();
1003 mapWallet
[hash
] = wtxIn
;
1004 CWalletTx
& wtx
= mapWallet
[hash
];
1005 wtx
.BindWallet(this);
1006 wtxOrdered
.insert(std::make_pair(wtx
.nOrderPos
, TxPair(&wtx
, (CAccountingEntry
*)0)));
1008 for (const CTxIn
& txin
: wtx
.tx
->vin
) {
1009 if (mapWallet
.count(txin
.prevout
.hash
)) {
1010 CWalletTx
& prevtx
= mapWallet
[txin
.prevout
.hash
];
1011 if (prevtx
.nIndex
== -1 && !prevtx
.hashUnset()) {
1012 MarkConflicted(prevtx
.hashBlock
, wtx
.GetHash());
1021 * Add a transaction to the wallet, or update it. pIndex and posInBlock should
1022 * be set when the transaction was known to be included in a block. When
1023 * pIndex == NULL, then wallet state is not updated in AddToWallet, but
1024 * notifications happen and cached balances are marked dirty.
1026 * If fUpdate is true, existing transactions will be updated.
1027 * TODO: One exception to this is that the abandoned state is cleared under the
1028 * assumption that any further notification of a transaction that was considered
1029 * abandoned is an indication that it is not safe to be considered abandoned.
1030 * Abandoned state should probably be more carefully tracked via different
1031 * posInBlock signals or by checking mempool presence when necessary.
1033 bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef
& ptx
, const CBlockIndex
* pIndex
, int posInBlock
, bool fUpdate
)
1035 const CTransaction
& tx
= *ptx
;
1037 AssertLockHeld(cs_wallet
);
1039 if (pIndex
!= NULL
) {
1040 for (const CTxIn
& txin
: tx
.vin
) {
1041 std::pair
<TxSpends::const_iterator
, TxSpends::const_iterator
> range
= mapTxSpends
.equal_range(txin
.prevout
);
1042 while (range
.first
!= range
.second
) {
1043 if (range
.first
->second
!= tx
.GetHash()) {
1044 LogPrintf("Transaction %s (in block %s) conflicts with wallet transaction %s (both spend %s:%i)\n", tx
.GetHash().ToString(), pIndex
->GetBlockHash().ToString(), range
.first
->second
.ToString(), range
.first
->first
.hash
.ToString(), range
.first
->first
.n
);
1045 MarkConflicted(pIndex
->GetBlockHash(), range
.first
->second
);
1052 bool fExisted
= mapWallet
.count(tx
.GetHash()) != 0;
1053 if (fExisted
&& !fUpdate
) return false;
1054 if (fExisted
|| IsMine(tx
) || IsFromMe(tx
))
1056 CWalletTx
wtx(this, ptx
);
1058 // Get merkle branch if transaction was found in a block
1060 wtx
.SetMerkleBranch(pIndex
, posInBlock
);
1062 return AddToWallet(wtx
, false);
1068 bool CWallet::TransactionCanBeAbandoned(const uint256
& hashTx
) const
1070 LOCK2(cs_main
, cs_wallet
);
1071 const CWalletTx
* wtx
= GetWalletTx(hashTx
);
1072 return wtx
&& !wtx
->isAbandoned() && wtx
->GetDepthInMainChain() <= 0 && !wtx
->InMempool();
1075 bool CWallet::AbandonTransaction(const uint256
& hashTx
)
1077 LOCK2(cs_main
, cs_wallet
);
1079 CWalletDB
walletdb(*dbw
, "r+");
1081 std::set
<uint256
> todo
;
1082 std::set
<uint256
> done
;
1084 // Can't mark abandoned if confirmed or in mempool
1085 assert(mapWallet
.count(hashTx
));
1086 CWalletTx
& origtx
= mapWallet
[hashTx
];
1087 if (origtx
.GetDepthInMainChain() > 0 || origtx
.InMempool()) {
1091 todo
.insert(hashTx
);
1093 while (!todo
.empty()) {
1094 uint256 now
= *todo
.begin();
1097 assert(mapWallet
.count(now
));
1098 CWalletTx
& wtx
= mapWallet
[now
];
1099 int currentconfirm
= wtx
.GetDepthInMainChain();
1100 // If the orig tx was not in block, none of its spends can be
1101 assert(currentconfirm
<= 0);
1102 // if (currentconfirm < 0) {Tx and spends are already conflicted, no need to abandon}
1103 if (currentconfirm
== 0 && !wtx
.isAbandoned()) {
1104 // If the orig tx was not in block/mempool, none of its spends can be in mempool
1105 assert(!wtx
.InMempool());
1109 walletdb
.WriteTx(wtx
);
1110 NotifyTransactionChanged(this, wtx
.GetHash(), CT_UPDATED
);
1111 // Iterate over all its outputs, and mark transactions in the wallet that spend them abandoned too
1112 TxSpends::const_iterator iter
= mapTxSpends
.lower_bound(COutPoint(hashTx
, 0));
1113 while (iter
!= mapTxSpends
.end() && iter
->first
.hash
== now
) {
1114 if (!done
.count(iter
->second
)) {
1115 todo
.insert(iter
->second
);
1119 // If a transaction changes 'conflicted' state, that changes the balance
1120 // available of the outputs it spends. So force those to be recomputed
1121 for (const CTxIn
& txin
: wtx
.tx
->vin
)
1123 if (mapWallet
.count(txin
.prevout
.hash
))
1124 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1132 void CWallet::MarkConflicted(const uint256
& hashBlock
, const uint256
& hashTx
)
1134 LOCK2(cs_main
, cs_wallet
);
1136 int conflictconfirms
= 0;
1137 if (mapBlockIndex
.count(hashBlock
)) {
1138 CBlockIndex
* pindex
= mapBlockIndex
[hashBlock
];
1139 if (chainActive
.Contains(pindex
)) {
1140 conflictconfirms
= -(chainActive
.Height() - pindex
->nHeight
+ 1);
1143 // If number of conflict confirms cannot be determined, this means
1144 // that the block is still unknown or not yet part of the main chain,
1145 // for example when loading the wallet during a reindex. Do nothing in that
1147 if (conflictconfirms
>= 0)
1150 // Do not flush the wallet here for performance reasons
1151 CWalletDB
walletdb(*dbw
, "r+", false);
1153 std::set
<uint256
> todo
;
1154 std::set
<uint256
> done
;
1156 todo
.insert(hashTx
);
1158 while (!todo
.empty()) {
1159 uint256 now
= *todo
.begin();
1162 assert(mapWallet
.count(now
));
1163 CWalletTx
& wtx
= mapWallet
[now
];
1164 int currentconfirm
= wtx
.GetDepthInMainChain();
1165 if (conflictconfirms
< currentconfirm
) {
1166 // Block is 'more conflicted' than current confirm; update.
1167 // Mark transaction as conflicted with this block.
1169 wtx
.hashBlock
= hashBlock
;
1171 walletdb
.WriteTx(wtx
);
1172 // Iterate over all its outputs, and mark transactions in the wallet that spend them conflicted too
1173 TxSpends::const_iterator iter
= mapTxSpends
.lower_bound(COutPoint(now
, 0));
1174 while (iter
!= mapTxSpends
.end() && iter
->first
.hash
== now
) {
1175 if (!done
.count(iter
->second
)) {
1176 todo
.insert(iter
->second
);
1180 // If a transaction changes 'conflicted' state, that changes the balance
1181 // available of the outputs it spends. So force those to be recomputed
1182 for (const CTxIn
& txin
: wtx
.tx
->vin
)
1184 if (mapWallet
.count(txin
.prevout
.hash
))
1185 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1191 void CWallet::SyncTransaction(const CTransactionRef
& ptx
, const CBlockIndex
*pindex
, int posInBlock
) {
1192 const CTransaction
& tx
= *ptx
;
1194 if (!AddToWalletIfInvolvingMe(ptx
, pindex
, posInBlock
, true))
1195 return; // Not one of ours
1197 // If a transaction changes 'conflicted' state, that changes the balance
1198 // available of the outputs it spends. So force those to be
1199 // recomputed, also:
1200 for (const CTxIn
& txin
: tx
.vin
)
1202 if (mapWallet
.count(txin
.prevout
.hash
))
1203 mapWallet
[txin
.prevout
.hash
].MarkDirty();
1207 void CWallet::TransactionAddedToMempool(const CTransactionRef
& ptx
) {
1208 LOCK2(cs_main
, cs_wallet
);
1209 SyncTransaction(ptx
);
1212 void CWallet::BlockConnected(const std::shared_ptr
<const CBlock
>& pblock
, const CBlockIndex
*pindex
, const std::vector
<CTransactionRef
>& vtxConflicted
) {
1213 LOCK2(cs_main
, cs_wallet
);
1214 // TODO: Temporarily ensure that mempool removals are notified before
1215 // connected transactions. This shouldn't matter, but the abandoned
1216 // state of transactions in our wallet is currently cleared when we
1217 // receive another notification and there is a race condition where
1218 // notification of a connected conflict might cause an outside process
1219 // to abandon a transaction and then have it inadvertently cleared by
1220 // the notification that the conflicted transaction was evicted.
1222 for (const CTransactionRef
& ptx
: vtxConflicted
) {
1223 SyncTransaction(ptx
);
1225 for (size_t i
= 0; i
< pblock
->vtx
.size(); i
++) {
1226 SyncTransaction(pblock
->vtx
[i
], pindex
, i
);
1230 void CWallet::BlockDisconnected(const std::shared_ptr
<const CBlock
>& pblock
) {
1231 LOCK2(cs_main
, cs_wallet
);
1233 for (const CTransactionRef
& ptx
: pblock
->vtx
) {
1234 SyncTransaction(ptx
);
1240 isminetype
CWallet::IsMine(const CTxIn
&txin
) const
1244 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(txin
.prevout
.hash
);
1245 if (mi
!= mapWallet
.end())
1247 const CWalletTx
& prev
= (*mi
).second
;
1248 if (txin
.prevout
.n
< prev
.tx
->vout
.size())
1249 return IsMine(prev
.tx
->vout
[txin
.prevout
.n
]);
1255 // Note that this function doesn't distinguish between a 0-valued input,
1256 // and a not-"is mine" (according to the filter) input.
1257 CAmount
CWallet::GetDebit(const CTxIn
&txin
, const isminefilter
& filter
) const
1261 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(txin
.prevout
.hash
);
1262 if (mi
!= mapWallet
.end())
1264 const CWalletTx
& prev
= (*mi
).second
;
1265 if (txin
.prevout
.n
< prev
.tx
->vout
.size())
1266 if (IsMine(prev
.tx
->vout
[txin
.prevout
.n
]) & filter
)
1267 return prev
.tx
->vout
[txin
.prevout
.n
].nValue
;
1273 isminetype
CWallet::IsMine(const CTxOut
& txout
) const
1275 return ::IsMine(*this, txout
.scriptPubKey
);
1278 CAmount
CWallet::GetCredit(const CTxOut
& txout
, const isminefilter
& filter
) const
1280 if (!MoneyRange(txout
.nValue
))
1281 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1282 return ((IsMine(txout
) & filter
) ? txout
.nValue
: 0);
1285 bool CWallet::IsChange(const CTxOut
& txout
) const
1287 // TODO: fix handling of 'change' outputs. The assumption is that any
1288 // payment to a script that is ours, but is not in the address book
1289 // is change. That assumption is likely to break when we implement multisignature
1290 // wallets that return change back into a multi-signature-protected address;
1291 // a better way of identifying which outputs are 'the send' and which are
1292 // 'the change' will need to be implemented (maybe extend CWalletTx to remember
1293 // which output, if any, was change).
1294 if (::IsMine(*this, txout
.scriptPubKey
))
1296 CTxDestination address
;
1297 if (!ExtractDestination(txout
.scriptPubKey
, address
))
1301 if (!mapAddressBook
.count(address
))
1307 CAmount
CWallet::GetChange(const CTxOut
& txout
) const
1309 if (!MoneyRange(txout
.nValue
))
1310 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1311 return (IsChange(txout
) ? txout
.nValue
: 0);
1314 bool CWallet::IsMine(const CTransaction
& tx
) const
1316 for (const CTxOut
& txout
: tx
.vout
)
1322 bool CWallet::IsFromMe(const CTransaction
& tx
) const
1324 return (GetDebit(tx
, ISMINE_ALL
) > 0);
1327 CAmount
CWallet::GetDebit(const CTransaction
& tx
, const isminefilter
& filter
) const
1330 for (const CTxIn
& txin
: tx
.vin
)
1332 nDebit
+= GetDebit(txin
, filter
);
1333 if (!MoneyRange(nDebit
))
1334 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1339 bool CWallet::IsAllFromMe(const CTransaction
& tx
, const isminefilter
& filter
) const
1343 for (const CTxIn
& txin
: tx
.vin
)
1345 auto mi
= mapWallet
.find(txin
.prevout
.hash
);
1346 if (mi
== mapWallet
.end())
1347 return false; // any unknown inputs can't be from us
1349 const CWalletTx
& prev
= (*mi
).second
;
1351 if (txin
.prevout
.n
>= prev
.tx
->vout
.size())
1352 return false; // invalid input!
1354 if (!(IsMine(prev
.tx
->vout
[txin
.prevout
.n
]) & filter
))
1360 CAmount
CWallet::GetCredit(const CTransaction
& tx
, const isminefilter
& filter
) const
1362 CAmount nCredit
= 0;
1363 for (const CTxOut
& txout
: tx
.vout
)
1365 nCredit
+= GetCredit(txout
, filter
);
1366 if (!MoneyRange(nCredit
))
1367 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1372 CAmount
CWallet::GetChange(const CTransaction
& tx
) const
1374 CAmount nChange
= 0;
1375 for (const CTxOut
& txout
: tx
.vout
)
1377 nChange
+= GetChange(txout
);
1378 if (!MoneyRange(nChange
))
1379 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1384 CPubKey
CWallet::GenerateNewHDMasterKey()
1387 key
.MakeNewKey(true);
1389 int64_t nCreationTime
= GetTime();
1390 CKeyMetadata
metadata(nCreationTime
);
1392 // calculate the pubkey
1393 CPubKey pubkey
= key
.GetPubKey();
1394 assert(key
.VerifyPubKey(pubkey
));
1396 // set the hd keypath to "m" -> Master, refers the masterkeyid to itself
1397 metadata
.hdKeypath
= "m";
1398 metadata
.hdMasterKeyID
= pubkey
.GetID();
1403 // mem store the metadata
1404 mapKeyMetadata
[pubkey
.GetID()] = metadata
;
1406 // write the key&metadata to the database
1407 if (!AddKeyPubKey(key
, pubkey
))
1408 throw std::runtime_error(std::string(__func__
) + ": AddKeyPubKey failed");
1414 bool CWallet::SetHDMasterKey(const CPubKey
& pubkey
)
1417 // store the keyid (hash160) together with
1418 // the child index counter in the database
1419 // as a hdchain object
1420 CHDChain newHdChain
;
1421 newHdChain
.nVersion
= CanSupportFeature(FEATURE_HD_SPLIT
) ? CHDChain::VERSION_HD_CHAIN_SPLIT
: CHDChain::VERSION_HD_BASE
;
1422 newHdChain
.masterKeyID
= pubkey
.GetID();
1423 SetHDChain(newHdChain
, false);
1428 bool CWallet::SetHDChain(const CHDChain
& chain
, bool memonly
)
1431 if (!memonly
&& !CWalletDB(*dbw
).WriteHDChain(chain
))
1432 throw std::runtime_error(std::string(__func__
) + ": writing chain failed");
1438 bool CWallet::IsHDEnabled() const
1440 return !hdChain
.masterKeyID
.IsNull();
1443 int64_t CWalletTx::GetTxTime() const
1445 int64_t n
= nTimeSmart
;
1446 return n
? n
: nTimeReceived
;
1449 int CWalletTx::GetRequestCount() const
1451 // Returns -1 if it wasn't being tracked
1454 LOCK(pwallet
->cs_wallet
);
1460 std::map
<uint256
, int>::const_iterator mi
= pwallet
->mapRequestCount
.find(hashBlock
);
1461 if (mi
!= pwallet
->mapRequestCount
.end())
1462 nRequests
= (*mi
).second
;
1467 // Did anyone request this transaction?
1468 std::map
<uint256
, int>::const_iterator mi
= pwallet
->mapRequestCount
.find(GetHash());
1469 if (mi
!= pwallet
->mapRequestCount
.end())
1471 nRequests
= (*mi
).second
;
1473 // How about the block it's in?
1474 if (nRequests
== 0 && !hashUnset())
1476 std::map
<uint256
, int>::const_iterator _mi
= pwallet
->mapRequestCount
.find(hashBlock
);
1477 if (_mi
!= pwallet
->mapRequestCount
.end())
1478 nRequests
= (*_mi
).second
;
1480 nRequests
= 1; // If it's in someone else's block it must have got out
1488 void CWalletTx::GetAmounts(std::list
<COutputEntry
>& listReceived
,
1489 std::list
<COutputEntry
>& listSent
, CAmount
& nFee
, std::string
& strSentAccount
, const isminefilter
& filter
) const
1492 listReceived
.clear();
1494 strSentAccount
= strFromAccount
;
1497 CAmount nDebit
= GetDebit(filter
);
1498 if (nDebit
> 0) // debit>0 means we signed/sent this transaction
1500 CAmount nValueOut
= tx
->GetValueOut();
1501 nFee
= nDebit
- nValueOut
;
1505 for (unsigned int i
= 0; i
< tx
->vout
.size(); ++i
)
1507 const CTxOut
& txout
= tx
->vout
[i
];
1508 isminetype fIsMine
= pwallet
->IsMine(txout
);
1509 // Only need to handle txouts if AT LEAST one of these is true:
1510 // 1) they debit from us (sent)
1511 // 2) the output is to us (received)
1514 // Don't report 'change' txouts
1515 if (pwallet
->IsChange(txout
))
1518 else if (!(fIsMine
& filter
))
1521 // In either case, we need to get the destination address
1522 CTxDestination address
;
1524 if (!ExtractDestination(txout
.scriptPubKey
, address
) && !txout
.scriptPubKey
.IsUnspendable())
1526 LogPrintf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
1527 this->GetHash().ToString());
1528 address
= CNoDestination();
1531 COutputEntry output
= {address
, txout
.nValue
, (int)i
};
1533 // If we are debited by the transaction, add the output as a "sent" entry
1535 listSent
.push_back(output
);
1537 // If we are receiving the output, add it as a "received" entry
1538 if (fIsMine
& filter
)
1539 listReceived
.push_back(output
);
1545 * Scan active chain for relevant transactions after importing keys. This should
1546 * be called whenever new keys are added to the wallet, with the oldest key
1549 * @return Earliest timestamp that could be successfully scanned from. Timestamp
1550 * returned will be higher than startTime if relevant blocks could not be read.
1552 int64_t CWallet::RescanFromTime(int64_t startTime
, bool update
)
1554 AssertLockHeld(cs_main
);
1555 AssertLockHeld(cs_wallet
);
1557 // Find starting block. May be null if nCreateTime is greater than the
1558 // highest blockchain timestamp, in which case there is nothing that needs
1560 CBlockIndex
* const startBlock
= chainActive
.FindEarliestAtLeast(startTime
- TIMESTAMP_WINDOW
);
1561 LogPrintf("%s: Rescanning last %i blocks\n", __func__
, startBlock
? chainActive
.Height() - startBlock
->nHeight
+ 1 : 0);
1564 const CBlockIndex
* const failedBlock
= ScanForWalletTransactions(startBlock
, update
);
1566 return failedBlock
->GetBlockTimeMax() + TIMESTAMP_WINDOW
+ 1;
1573 * Scan the block chain (starting in pindexStart) for transactions
1574 * from or to us. If fUpdate is true, found transactions that already
1575 * exist in the wallet will be updated.
1577 * Returns null if scan was successful. Otherwise, if a complete rescan was not
1578 * possible (due to pruning or corruption), returns pointer to the most recent
1579 * block that could not be scanned.
1581 CBlockIndex
* CWallet::ScanForWalletTransactions(CBlockIndex
* pindexStart
, bool fUpdate
)
1583 int64_t nNow
= GetTime();
1584 const CChainParams
& chainParams
= Params();
1586 CBlockIndex
* pindex
= pindexStart
;
1587 CBlockIndex
* ret
= nullptr;
1589 LOCK2(cs_main
, cs_wallet
);
1590 fAbortRescan
= false;
1591 fScanningWallet
= true;
1593 ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup
1594 double dProgressStart
= GuessVerificationProgress(chainParams
.TxData(), pindex
);
1595 double dProgressTip
= GuessVerificationProgress(chainParams
.TxData(), chainActive
.Tip());
1596 while (pindex
&& !fAbortRescan
)
1598 if (pindex
->nHeight
% 100 == 0 && dProgressTip
- dProgressStart
> 0.0)
1599 ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams
.TxData(), pindex
) - dProgressStart
) / (dProgressTip
- dProgressStart
) * 100))));
1600 if (GetTime() >= nNow
+ 60) {
1602 LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex
->nHeight
, GuessVerificationProgress(chainParams
.TxData(), pindex
));
1606 if (ReadBlockFromDisk(block
, pindex
, Params().GetConsensus())) {
1607 for (size_t posInBlock
= 0; posInBlock
< block
.vtx
.size(); ++posInBlock
) {
1608 AddToWalletIfInvolvingMe(block
.vtx
[posInBlock
], pindex
, posInBlock
, fUpdate
);
1613 pindex
= chainActive
.Next(pindex
);
1615 if (pindex
&& fAbortRescan
) {
1616 LogPrintf("Rescan aborted at block %d. Progress=%f\n", pindex
->nHeight
, GuessVerificationProgress(chainParams
.TxData(), pindex
));
1618 ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI
1620 fScanningWallet
= false;
1625 void CWallet::ReacceptWalletTransactions()
1627 // If transactions aren't being broadcasted, don't let them into local mempool either
1628 if (!fBroadcastTransactions
)
1630 LOCK2(cs_main
, cs_wallet
);
1631 std::map
<int64_t, CWalletTx
*> mapSorted
;
1633 // Sort pending wallet transactions based on their initial wallet insertion order
1634 for (std::pair
<const uint256
, CWalletTx
>& item
: mapWallet
)
1636 const uint256
& wtxid
= item
.first
;
1637 CWalletTx
& wtx
= item
.second
;
1638 assert(wtx
.GetHash() == wtxid
);
1640 int nDepth
= wtx
.GetDepthInMainChain();
1642 if (!wtx
.IsCoinBase() && (nDepth
== 0 && !wtx
.isAbandoned())) {
1643 mapSorted
.insert(std::make_pair(wtx
.nOrderPos
, &wtx
));
1647 // Try to add wallet transactions to memory pool
1648 for (std::pair
<const int64_t, CWalletTx
*>& item
: mapSorted
)
1650 CWalletTx
& wtx
= *(item
.second
);
1653 CValidationState state
;
1654 wtx
.AcceptToMemoryPool(maxTxFee
, state
);
1658 bool CWalletTx::RelayWalletTransaction(CConnman
* connman
)
1660 assert(pwallet
->GetBroadcastTransactions());
1661 if (!IsCoinBase() && !isAbandoned() && GetDepthInMainChain() == 0)
1663 CValidationState state
;
1664 /* GetDepthInMainChain already catches known conflicts. */
1665 if (InMempool() || AcceptToMemoryPool(maxTxFee
, state
)) {
1666 LogPrintf("Relaying wtx %s\n", GetHash().ToString());
1668 CInv
inv(MSG_TX
, GetHash());
1669 connman
->ForEachNode([&inv
](CNode
* pnode
)
1671 pnode
->PushInventory(inv
);
1680 std::set
<uint256
> CWalletTx::GetConflicts() const
1682 std::set
<uint256
> result
;
1683 if (pwallet
!= NULL
)
1685 uint256 myHash
= GetHash();
1686 result
= pwallet
->GetConflicts(myHash
);
1687 result
.erase(myHash
);
1692 CAmount
CWalletTx::GetDebit(const isminefilter
& filter
) const
1694 if (tx
->vin
.empty())
1698 if(filter
& ISMINE_SPENDABLE
)
1701 debit
+= nDebitCached
;
1704 nDebitCached
= pwallet
->GetDebit(*this, ISMINE_SPENDABLE
);
1705 fDebitCached
= true;
1706 debit
+= nDebitCached
;
1709 if(filter
& ISMINE_WATCH_ONLY
)
1711 if(fWatchDebitCached
)
1712 debit
+= nWatchDebitCached
;
1715 nWatchDebitCached
= pwallet
->GetDebit(*this, ISMINE_WATCH_ONLY
);
1716 fWatchDebitCached
= true;
1717 debit
+= nWatchDebitCached
;
1723 CAmount
CWalletTx::GetCredit(const isminefilter
& filter
) const
1725 // Must wait until coinbase is safely deep enough in the chain before valuing it
1726 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1730 if (filter
& ISMINE_SPENDABLE
)
1732 // GetBalance can assume transactions in mapWallet won't change
1734 credit
+= nCreditCached
;
1737 nCreditCached
= pwallet
->GetCredit(*this, ISMINE_SPENDABLE
);
1738 fCreditCached
= true;
1739 credit
+= nCreditCached
;
1742 if (filter
& ISMINE_WATCH_ONLY
)
1744 if (fWatchCreditCached
)
1745 credit
+= nWatchCreditCached
;
1748 nWatchCreditCached
= pwallet
->GetCredit(*this, ISMINE_WATCH_ONLY
);
1749 fWatchCreditCached
= true;
1750 credit
+= nWatchCreditCached
;
1756 CAmount
CWalletTx::GetImmatureCredit(bool fUseCache
) const
1758 if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
1760 if (fUseCache
&& fImmatureCreditCached
)
1761 return nImmatureCreditCached
;
1762 nImmatureCreditCached
= pwallet
->GetCredit(*this, ISMINE_SPENDABLE
);
1763 fImmatureCreditCached
= true;
1764 return nImmatureCreditCached
;
1770 CAmount
CWalletTx::GetAvailableCredit(bool fUseCache
) const
1775 // Must wait until coinbase is safely deep enough in the chain before valuing it
1776 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1779 if (fUseCache
&& fAvailableCreditCached
)
1780 return nAvailableCreditCached
;
1782 CAmount nCredit
= 0;
1783 uint256 hashTx
= GetHash();
1784 for (unsigned int i
= 0; i
< tx
->vout
.size(); i
++)
1786 if (!pwallet
->IsSpent(hashTx
, i
))
1788 const CTxOut
&txout
= tx
->vout
[i
];
1789 nCredit
+= pwallet
->GetCredit(txout
, ISMINE_SPENDABLE
);
1790 if (!MoneyRange(nCredit
))
1791 throw std::runtime_error(std::string(__func__
) + " : value out of range");
1795 nAvailableCreditCached
= nCredit
;
1796 fAvailableCreditCached
= true;
1800 CAmount
CWalletTx::GetImmatureWatchOnlyCredit(const bool& fUseCache
) const
1802 if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
1804 if (fUseCache
&& fImmatureWatchCreditCached
)
1805 return nImmatureWatchCreditCached
;
1806 nImmatureWatchCreditCached
= pwallet
->GetCredit(*this, ISMINE_WATCH_ONLY
);
1807 fImmatureWatchCreditCached
= true;
1808 return nImmatureWatchCreditCached
;
1814 CAmount
CWalletTx::GetAvailableWatchOnlyCredit(const bool& fUseCache
) const
1819 // Must wait until coinbase is safely deep enough in the chain before valuing it
1820 if (IsCoinBase() && GetBlocksToMaturity() > 0)
1823 if (fUseCache
&& fAvailableWatchCreditCached
)
1824 return nAvailableWatchCreditCached
;
1826 CAmount nCredit
= 0;
1827 for (unsigned int i
= 0; i
< tx
->vout
.size(); i
++)
1829 if (!pwallet
->IsSpent(GetHash(), i
))
1831 const CTxOut
&txout
= tx
->vout
[i
];
1832 nCredit
+= pwallet
->GetCredit(txout
, ISMINE_WATCH_ONLY
);
1833 if (!MoneyRange(nCredit
))
1834 throw std::runtime_error(std::string(__func__
) + ": value out of range");
1838 nAvailableWatchCreditCached
= nCredit
;
1839 fAvailableWatchCreditCached
= true;
1843 CAmount
CWalletTx::GetChange() const
1846 return nChangeCached
;
1847 nChangeCached
= pwallet
->GetChange(*this);
1848 fChangeCached
= true;
1849 return nChangeCached
;
1852 bool CWalletTx::InMempool() const
1855 return mempool
.exists(GetHash());
1858 bool CWalletTx::IsTrusted() const
1860 // Quick answer in most cases
1861 if (!CheckFinalTx(*this))
1863 int nDepth
= GetDepthInMainChain();
1868 if (!bSpendZeroConfChange
|| !IsFromMe(ISMINE_ALL
)) // using wtx's cached debit
1871 // Don't trust unconfirmed transactions from us unless they are in the mempool.
1875 // Trusted if all inputs are from us and are in the mempool:
1876 for (const CTxIn
& txin
: tx
->vin
)
1878 // Transactions not sent by us: not trusted
1879 const CWalletTx
* parent
= pwallet
->GetWalletTx(txin
.prevout
.hash
);
1882 const CTxOut
& parentOut
= parent
->tx
->vout
[txin
.prevout
.n
];
1883 if (pwallet
->IsMine(parentOut
) != ISMINE_SPENDABLE
)
1889 bool CWalletTx::IsEquivalentTo(const CWalletTx
& _tx
) const
1891 CMutableTransaction tx1
= *this->tx
;
1892 CMutableTransaction tx2
= *_tx
.tx
;
1893 for (auto& txin
: tx1
.vin
) txin
.scriptSig
= CScript();
1894 for (auto& txin
: tx2
.vin
) txin
.scriptSig
= CScript();
1895 return CTransaction(tx1
) == CTransaction(tx2
);
1898 std::vector
<uint256
> CWallet::ResendWalletTransactionsBefore(int64_t nTime
, CConnman
* connman
)
1900 std::vector
<uint256
> result
;
1903 // Sort them in chronological order
1904 std::multimap
<unsigned int, CWalletTx
*> mapSorted
;
1905 for (std::pair
<const uint256
, CWalletTx
>& item
: mapWallet
)
1907 CWalletTx
& wtx
= item
.second
;
1908 // Don't rebroadcast if newer than nTime:
1909 if (wtx
.nTimeReceived
> nTime
)
1911 mapSorted
.insert(std::make_pair(wtx
.nTimeReceived
, &wtx
));
1913 for (std::pair
<const unsigned int, CWalletTx
*>& item
: mapSorted
)
1915 CWalletTx
& wtx
= *item
.second
;
1916 if (wtx
.RelayWalletTransaction(connman
))
1917 result
.push_back(wtx
.GetHash());
1922 void CWallet::ResendWalletTransactions(int64_t nBestBlockTime
, CConnman
* connman
)
1924 // Do this infrequently and randomly to avoid giving away
1925 // that these are our transactions.
1926 if (GetTime() < nNextResend
|| !fBroadcastTransactions
)
1928 bool fFirst
= (nNextResend
== 0);
1929 nNextResend
= GetTime() + GetRand(30 * 60);
1933 // Only do it if there's been a new block since last time
1934 if (nBestBlockTime
< nLastResend
)
1936 nLastResend
= GetTime();
1938 // Rebroadcast unconfirmed txes older than 5 minutes before the last
1940 std::vector
<uint256
> relayed
= ResendWalletTransactionsBefore(nBestBlockTime
-5*60, connman
);
1941 if (!relayed
.empty())
1942 LogPrintf("%s: rebroadcast %u unconfirmed transactions\n", __func__
, relayed
.size());
1945 /** @} */ // end of mapWallet
1950 /** @defgroup Actions
1956 CAmount
CWallet::GetBalance() const
1960 LOCK2(cs_main
, cs_wallet
);
1961 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1963 const CWalletTx
* pcoin
= &(*it
).second
;
1964 if (pcoin
->IsTrusted())
1965 nTotal
+= pcoin
->GetAvailableCredit();
1972 CAmount
CWallet::GetUnconfirmedBalance() const
1976 LOCK2(cs_main
, cs_wallet
);
1977 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1979 const CWalletTx
* pcoin
= &(*it
).second
;
1980 if (!pcoin
->IsTrusted() && pcoin
->GetDepthInMainChain() == 0 && pcoin
->InMempool())
1981 nTotal
+= pcoin
->GetAvailableCredit();
1987 CAmount
CWallet::GetImmatureBalance() const
1991 LOCK2(cs_main
, cs_wallet
);
1992 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
1994 const CWalletTx
* pcoin
= &(*it
).second
;
1995 nTotal
+= pcoin
->GetImmatureCredit();
2001 CAmount
CWallet::GetWatchOnlyBalance() const
2005 LOCK2(cs_main
, cs_wallet
);
2006 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
2008 const CWalletTx
* pcoin
= &(*it
).second
;
2009 if (pcoin
->IsTrusted())
2010 nTotal
+= pcoin
->GetAvailableWatchOnlyCredit();
2017 CAmount
CWallet::GetUnconfirmedWatchOnlyBalance() const
2021 LOCK2(cs_main
, cs_wallet
);
2022 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
2024 const CWalletTx
* pcoin
= &(*it
).second
;
2025 if (!pcoin
->IsTrusted() && pcoin
->GetDepthInMainChain() == 0 && pcoin
->InMempool())
2026 nTotal
+= pcoin
->GetAvailableWatchOnlyCredit();
2032 CAmount
CWallet::GetImmatureWatchOnlyBalance() const
2036 LOCK2(cs_main
, cs_wallet
);
2037 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
2039 const CWalletTx
* pcoin
= &(*it
).second
;
2040 nTotal
+= pcoin
->GetImmatureWatchOnlyCredit();
2046 // Calculate total balance in a different way from GetBalance. The biggest
2047 // difference is that GetBalance sums up all unspent TxOuts paying to the
2048 // wallet, while this sums up both spent and unspent TxOuts paying to the
2049 // wallet, and then subtracts the values of TxIns spending from the wallet. This
2050 // also has fewer restrictions on which unconfirmed transactions are considered
2052 CAmount
CWallet::GetLegacyBalance(const isminefilter
& filter
, int minDepth
, const std::string
* account
) const
2054 LOCK2(cs_main
, cs_wallet
);
2056 CAmount balance
= 0;
2057 for (const auto& entry
: mapWallet
) {
2058 const CWalletTx
& wtx
= entry
.second
;
2059 const int depth
= wtx
.GetDepthInMainChain();
2060 if (depth
< 0 || !CheckFinalTx(*wtx
.tx
) || wtx
.GetBlocksToMaturity() > 0) {
2064 // Loop through tx outputs and add incoming payments. For outgoing txs,
2065 // treat change outputs specially, as part of the amount debited.
2066 CAmount debit
= wtx
.GetDebit(filter
);
2067 const bool outgoing
= debit
> 0;
2068 for (const CTxOut
& out
: wtx
.tx
->vout
) {
2069 if (outgoing
&& IsChange(out
)) {
2070 debit
-= out
.nValue
;
2071 } else if (IsMine(out
) & filter
&& depth
>= minDepth
&& (!account
|| *account
== GetAccountName(out
.scriptPubKey
))) {
2072 balance
+= out
.nValue
;
2076 // For outgoing txs, subtract amount debited.
2077 if (outgoing
&& (!account
|| *account
== wtx
.strFromAccount
)) {
2083 balance
+= CWalletDB(*dbw
).GetAccountCreditDebit(*account
);
2089 CAmount
CWallet::GetAvailableBalance(const CCoinControl
* coinControl
) const
2091 LOCK2(cs_main
, cs_wallet
);
2093 CAmount balance
= 0;
2094 std::vector
<COutput
> vCoins
;
2095 AvailableCoins(vCoins
, true, coinControl
);
2096 for (const COutput
& out
: vCoins
) {
2097 if (out
.fSpendable
) {
2098 balance
+= out
.tx
->tx
->vout
[out
.i
].nValue
;
2104 void CWallet::AvailableCoins(std::vector
<COutput
> &vCoins
, bool fOnlySafe
, const CCoinControl
*coinControl
, const CAmount
&nMinimumAmount
, const CAmount
&nMaximumAmount
, const CAmount
&nMinimumSumAmount
, const uint64_t &nMaximumCount
, const int &nMinDepth
, const int &nMaxDepth
) const
2109 LOCK2(cs_main
, cs_wallet
);
2113 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); ++it
)
2115 const uint256
& wtxid
= it
->first
;
2116 const CWalletTx
* pcoin
= &(*it
).second
;
2118 if (!CheckFinalTx(*pcoin
))
2121 if (pcoin
->IsCoinBase() && pcoin
->GetBlocksToMaturity() > 0)
2124 int nDepth
= pcoin
->GetDepthInMainChain();
2128 // We should not consider coins which aren't at least in our mempool
2129 // It's possible for these to be conflicted via ancestors which we may never be able to detect
2130 if (nDepth
== 0 && !pcoin
->InMempool())
2133 bool safeTx
= pcoin
->IsTrusted();
2135 // We should not consider coins from transactions that are replacing
2136 // other transactions.
2138 // Example: There is a transaction A which is replaced by bumpfee
2139 // transaction B. In this case, we want to prevent creation of
2140 // a transaction B' which spends an output of B.
2142 // Reason: If transaction A were initially confirmed, transactions B
2143 // and B' would no longer be valid, so the user would have to create
2144 // a new transaction C to replace B'. However, in the case of a
2145 // one-block reorg, transactions B' and C might BOTH be accepted,
2146 // when the user only wanted one of them. Specifically, there could
2147 // be a 1-block reorg away from the chain where transactions A and C
2148 // were accepted to another chain where B, B', and C were all
2150 if (nDepth
== 0 && pcoin
->mapValue
.count("replaces_txid")) {
2154 // Similarly, we should not consider coins from transactions that
2155 // have been replaced. In the example above, we would want to prevent
2156 // creation of a transaction A' spending an output of A, because if
2157 // transaction B were initially confirmed, conflicting with A and
2158 // A', we wouldn't want to the user to create a transaction D
2159 // intending to replace A', but potentially resulting in a scenario
2160 // where A, A', and D could all be accepted (instead of just B and
2161 // D, or just A and A' like the user would want).
2162 if (nDepth
== 0 && pcoin
->mapValue
.count("replaced_by_txid")) {
2166 if (fOnlySafe
&& !safeTx
) {
2170 if (nDepth
< nMinDepth
|| nDepth
> nMaxDepth
)
2173 for (unsigned int i
= 0; i
< pcoin
->tx
->vout
.size(); i
++) {
2174 if (pcoin
->tx
->vout
[i
].nValue
< nMinimumAmount
|| pcoin
->tx
->vout
[i
].nValue
> nMaximumAmount
)
2177 if (coinControl
&& coinControl
->HasSelected() && !coinControl
->fAllowOtherInputs
&& !coinControl
->IsSelected(COutPoint((*it
).first
, i
)))
2180 if (IsLockedCoin((*it
).first
, i
))
2183 if (IsSpent(wtxid
, i
))
2186 isminetype mine
= IsMine(pcoin
->tx
->vout
[i
]);
2188 if (mine
== ISMINE_NO
) {
2192 bool fSpendableIn
= ((mine
& ISMINE_SPENDABLE
) != ISMINE_NO
) || (coinControl
&& coinControl
->fAllowWatchOnly
&& (mine
& ISMINE_WATCH_SOLVABLE
) != ISMINE_NO
);
2193 bool fSolvableIn
= (mine
& (ISMINE_SPENDABLE
| ISMINE_WATCH_SOLVABLE
)) != ISMINE_NO
;
2195 vCoins
.push_back(COutput(pcoin
, i
, nDepth
, fSpendableIn
, fSolvableIn
, safeTx
));
2197 // Checks the sum amount of all UTXO's.
2198 if (nMinimumSumAmount
!= MAX_MONEY
) {
2199 nTotal
+= pcoin
->tx
->vout
[i
].nValue
;
2201 if (nTotal
>= nMinimumSumAmount
) {
2206 // Checks the maximum number of UTXO's.
2207 if (nMaximumCount
> 0 && vCoins
.size() >= nMaximumCount
) {
2215 std::map
<CTxDestination
, std::vector
<COutput
>> CWallet::ListCoins() const
2217 // TODO: Add AssertLockHeld(cs_wallet) here.
2219 // Because the return value from this function contains pointers to
2220 // CWalletTx objects, callers to this function really should acquire the
2221 // cs_wallet lock before calling it. However, the current caller doesn't
2222 // acquire this lock yet. There was an attempt to add the missing lock in
2223 // https://github.com/bitcoin/bitcoin/pull/10340, but that change has been
2224 // postponed until after https://github.com/bitcoin/bitcoin/pull/10244 to
2225 // avoid adding some extra complexity to the Qt code.
2227 std::map
<CTxDestination
, std::vector
<COutput
>> result
;
2229 std::vector
<COutput
> availableCoins
;
2230 AvailableCoins(availableCoins
);
2232 LOCK2(cs_main
, cs_wallet
);
2233 for (auto& coin
: availableCoins
) {
2234 CTxDestination address
;
2235 if (coin
.fSpendable
&&
2236 ExtractDestination(FindNonChangeParentOutput(*coin
.tx
->tx
, coin
.i
).scriptPubKey
, address
)) {
2237 result
[address
].emplace_back(std::move(coin
));
2241 std::vector
<COutPoint
> lockedCoins
;
2242 ListLockedCoins(lockedCoins
);
2243 for (const auto& output
: lockedCoins
) {
2244 auto it
= mapWallet
.find(output
.hash
);
2245 if (it
!= mapWallet
.end()) {
2246 int depth
= it
->second
.GetDepthInMainChain();
2247 if (depth
>= 0 && output
.n
< it
->second
.tx
->vout
.size() &&
2248 IsMine(it
->second
.tx
->vout
[output
.n
]) == ISMINE_SPENDABLE
) {
2249 CTxDestination address
;
2250 if (ExtractDestination(FindNonChangeParentOutput(*it
->second
.tx
, output
.n
).scriptPubKey
, address
)) {
2251 result
[address
].emplace_back(
2252 &it
->second
, output
.n
, depth
, true /* spendable */, true /* solvable */, false /* safe */);
2261 const CTxOut
& CWallet::FindNonChangeParentOutput(const CTransaction
& tx
, int output
) const
2263 const CTransaction
* ptx
= &tx
;
2265 while (IsChange(ptx
->vout
[n
]) && ptx
->vin
.size() > 0) {
2266 const COutPoint
& prevout
= ptx
->vin
[0].prevout
;
2267 auto it
= mapWallet
.find(prevout
.hash
);
2268 if (it
== mapWallet
.end() || it
->second
.tx
->vout
.size() <= prevout
.n
||
2269 !IsMine(it
->second
.tx
->vout
[prevout
.n
])) {
2272 ptx
= it
->second
.tx
.get();
2275 return ptx
->vout
[n
];
2278 static void ApproximateBestSubset(const std::vector
<CInputCoin
>& vValue
, const CAmount
& nTotalLower
, const CAmount
& nTargetValue
,
2279 std::vector
<char>& vfBest
, CAmount
& nBest
, int iterations
= 1000)
2281 std::vector
<char> vfIncluded
;
2283 vfBest
.assign(vValue
.size(), true);
2284 nBest
= nTotalLower
;
2286 FastRandomContext insecure_rand
;
2288 for (int nRep
= 0; nRep
< iterations
&& nBest
!= nTargetValue
; nRep
++)
2290 vfIncluded
.assign(vValue
.size(), false);
2292 bool fReachedTarget
= false;
2293 for (int nPass
= 0; nPass
< 2 && !fReachedTarget
; nPass
++)
2295 for (unsigned int i
= 0; i
< vValue
.size(); i
++)
2297 //The solver here uses a randomized algorithm,
2298 //the randomness serves no real security purpose but is just
2299 //needed to prevent degenerate behavior and it is important
2300 //that the rng is fast. We do not use a constant random sequence,
2301 //because there may be some privacy improvement by making
2302 //the selection random.
2303 if (nPass
== 0 ? insecure_rand
.randbool() : !vfIncluded
[i
])
2305 nTotal
+= vValue
[i
].txout
.nValue
;
2306 vfIncluded
[i
] = true;
2307 if (nTotal
>= nTargetValue
)
2309 fReachedTarget
= true;
2313 vfBest
= vfIncluded
;
2315 nTotal
-= vValue
[i
].txout
.nValue
;
2316 vfIncluded
[i
] = false;
2324 bool CWallet::SelectCoinsMinConf(const CAmount
& nTargetValue
, const int nConfMine
, const int nConfTheirs
, const uint64_t nMaxAncestors
, std::vector
<COutput
> vCoins
,
2325 std::set
<CInputCoin
>& setCoinsRet
, CAmount
& nValueRet
) const
2327 setCoinsRet
.clear();
2330 // List of values less than target
2331 boost::optional
<CInputCoin
> coinLowestLarger
;
2332 std::vector
<CInputCoin
> vValue
;
2333 CAmount nTotalLower
= 0;
2335 random_shuffle(vCoins
.begin(), vCoins
.end(), GetRandInt
);
2337 for (const COutput
&output
: vCoins
)
2339 if (!output
.fSpendable
)
2342 const CWalletTx
*pcoin
= output
.tx
;
2344 if (output
.nDepth
< (pcoin
->IsFromMe(ISMINE_ALL
) ? nConfMine
: nConfTheirs
))
2347 if (!mempool
.TransactionWithinChainLimit(pcoin
->GetHash(), nMaxAncestors
))
2352 CInputCoin coin
= CInputCoin(pcoin
, i
);
2354 if (coin
.txout
.nValue
== nTargetValue
)
2356 setCoinsRet
.insert(coin
);
2357 nValueRet
+= coin
.txout
.nValue
;
2360 else if (coin
.txout
.nValue
< nTargetValue
+ MIN_CHANGE
)
2362 vValue
.push_back(coin
);
2363 nTotalLower
+= coin
.txout
.nValue
;
2365 else if (!coinLowestLarger
|| coin
.txout
.nValue
< coinLowestLarger
->txout
.nValue
)
2367 coinLowestLarger
= coin
;
2371 if (nTotalLower
== nTargetValue
)
2373 for (const auto& input
: vValue
)
2375 setCoinsRet
.insert(input
);
2376 nValueRet
+= input
.txout
.nValue
;
2381 if (nTotalLower
< nTargetValue
)
2383 if (!coinLowestLarger
)
2385 setCoinsRet
.insert(coinLowestLarger
.get());
2386 nValueRet
+= coinLowestLarger
->txout
.nValue
;
2390 // Solve subset sum by stochastic approximation
2391 std::sort(vValue
.begin(), vValue
.end(), CompareValueOnly());
2392 std::reverse(vValue
.begin(), vValue
.end());
2393 std::vector
<char> vfBest
;
2396 ApproximateBestSubset(vValue
, nTotalLower
, nTargetValue
, vfBest
, nBest
);
2397 if (nBest
!= nTargetValue
&& nTotalLower
>= nTargetValue
+ MIN_CHANGE
)
2398 ApproximateBestSubset(vValue
, nTotalLower
, nTargetValue
+ MIN_CHANGE
, vfBest
, nBest
);
2400 // If we have a bigger coin and (either the stochastic approximation didn't find a good solution,
2401 // or the next bigger coin is closer), return the bigger coin
2402 if (coinLowestLarger
&&
2403 ((nBest
!= nTargetValue
&& nBest
< nTargetValue
+ MIN_CHANGE
) || coinLowestLarger
->txout
.nValue
<= nBest
))
2405 setCoinsRet
.insert(coinLowestLarger
.get());
2406 nValueRet
+= coinLowestLarger
->txout
.nValue
;
2409 for (unsigned int i
= 0; i
< vValue
.size(); i
++)
2412 setCoinsRet
.insert(vValue
[i
]);
2413 nValueRet
+= vValue
[i
].txout
.nValue
;
2416 if (LogAcceptCategory(BCLog::SELECTCOINS
)) {
2417 LogPrint(BCLog::SELECTCOINS
, "SelectCoins() best subset: ");
2418 for (unsigned int i
= 0; i
< vValue
.size(); i
++) {
2420 LogPrint(BCLog::SELECTCOINS
, "%s ", FormatMoney(vValue
[i
].txout
.nValue
));
2423 LogPrint(BCLog::SELECTCOINS
, "total %s\n", FormatMoney(nBest
));
2430 bool CWallet::SelectCoins(const std::vector
<COutput
>& vAvailableCoins
, const CAmount
& nTargetValue
, std::set
<CInputCoin
>& setCoinsRet
, CAmount
& nValueRet
, const CCoinControl
* coinControl
) const
2432 std::vector
<COutput
> vCoins(vAvailableCoins
);
2434 // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
2435 if (coinControl
&& coinControl
->HasSelected() && !coinControl
->fAllowOtherInputs
)
2437 for (const COutput
& out
: vCoins
)
2439 if (!out
.fSpendable
)
2441 nValueRet
+= out
.tx
->tx
->vout
[out
.i
].nValue
;
2442 setCoinsRet
.insert(CInputCoin(out
.tx
, out
.i
));
2444 return (nValueRet
>= nTargetValue
);
2447 // calculate value from preset inputs and store them
2448 std::set
<CInputCoin
> setPresetCoins
;
2449 CAmount nValueFromPresetInputs
= 0;
2451 std::vector
<COutPoint
> vPresetInputs
;
2453 coinControl
->ListSelected(vPresetInputs
);
2454 for (const COutPoint
& outpoint
: vPresetInputs
)
2456 std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.find(outpoint
.hash
);
2457 if (it
!= mapWallet
.end())
2459 const CWalletTx
* pcoin
= &it
->second
;
2460 // Clearly invalid input, fail
2461 if (pcoin
->tx
->vout
.size() <= outpoint
.n
)
2463 nValueFromPresetInputs
+= pcoin
->tx
->vout
[outpoint
.n
].nValue
;
2464 setPresetCoins
.insert(CInputCoin(pcoin
, outpoint
.n
));
2466 return false; // TODO: Allow non-wallet inputs
2469 // remove preset inputs from vCoins
2470 for (std::vector
<COutput
>::iterator it
= vCoins
.begin(); it
!= vCoins
.end() && coinControl
&& coinControl
->HasSelected();)
2472 if (setPresetCoins
.count(CInputCoin(it
->tx
, it
->i
)))
2473 it
= vCoins
.erase(it
);
2478 size_t nMaxChainLength
= std::min(GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT
), GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT
));
2479 bool fRejectLongChains
= GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS
);
2481 bool res
= nTargetValue
<= nValueFromPresetInputs
||
2482 SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 1, 6, 0, vCoins
, setCoinsRet
, nValueRet
) ||
2483 SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 1, 1, 0, vCoins
, setCoinsRet
, nValueRet
) ||
2484 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, 2, vCoins
, setCoinsRet
, nValueRet
)) ||
2485 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, std::min((size_t)4, nMaxChainLength
/3), vCoins
, setCoinsRet
, nValueRet
)) ||
2486 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, nMaxChainLength
/2, vCoins
, setCoinsRet
, nValueRet
)) ||
2487 (bSpendZeroConfChange
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, nMaxChainLength
, vCoins
, setCoinsRet
, nValueRet
)) ||
2488 (bSpendZeroConfChange
&& !fRejectLongChains
&& SelectCoinsMinConf(nTargetValue
- nValueFromPresetInputs
, 0, 1, std::numeric_limits
<uint64_t>::max(), vCoins
, setCoinsRet
, nValueRet
));
2490 // because SelectCoinsMinConf clears the setCoinsRet, we now add the possible inputs to the coinset
2491 setCoinsRet
.insert(setPresetCoins
.begin(), setPresetCoins
.end());
2493 // add preset inputs to the total value selected
2494 nValueRet
+= nValueFromPresetInputs
;
2499 bool CWallet::SignTransaction(CMutableTransaction
&tx
)
2501 AssertLockHeld(cs_wallet
); // mapWallet
2504 CTransaction
txNewConst(tx
);
2506 for (const auto& input
: tx
.vin
) {
2507 std::map
<uint256
, CWalletTx
>::const_iterator mi
= mapWallet
.find(input
.prevout
.hash
);
2508 if(mi
== mapWallet
.end() || input
.prevout
.n
>= mi
->second
.tx
->vout
.size()) {
2511 const CScript
& scriptPubKey
= mi
->second
.tx
->vout
[input
.prevout
.n
].scriptPubKey
;
2512 const CAmount
& amount
= mi
->second
.tx
->vout
[input
.prevout
.n
].nValue
;
2513 SignatureData sigdata
;
2514 if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst
, nIn
, amount
, SIGHASH_ALL
), scriptPubKey
, sigdata
)) {
2517 UpdateTransaction(tx
, nIn
, sigdata
);
2523 bool CWallet::FundTransaction(CMutableTransaction
& tx
, CAmount
& nFeeRet
, int& nChangePosInOut
, std::string
& strFailReason
, bool lockUnspents
, const std::set
<int>& setSubtractFeeFromOutputs
, CCoinControl coinControl
)
2525 std::vector
<CRecipient
> vecSend
;
2527 // Turn the txout set into a CRecipient vector
2528 for (size_t idx
= 0; idx
< tx
.vout
.size(); idx
++)
2530 const CTxOut
& txOut
= tx
.vout
[idx
];
2531 CRecipient recipient
= {txOut
.scriptPubKey
, txOut
.nValue
, setSubtractFeeFromOutputs
.count(idx
) == 1};
2532 vecSend
.push_back(recipient
);
2535 coinControl
.fAllowOtherInputs
= true;
2537 for (const CTxIn
& txin
: tx
.vin
)
2538 coinControl
.Select(txin
.prevout
);
2540 CReserveKey
reservekey(this);
2542 if (!CreateTransaction(vecSend
, wtx
, reservekey
, nFeeRet
, nChangePosInOut
, strFailReason
, coinControl
, false)) {
2546 if (nChangePosInOut
!= -1) {
2547 tx
.vout
.insert(tx
.vout
.begin() + nChangePosInOut
, wtx
.tx
->vout
[nChangePosInOut
]);
2548 // we dont have the normal Create/Commit cycle, and dont want to risk reusing change,
2549 // so just remove the key from the keypool here.
2550 reservekey
.KeepKey();
2553 // Copy output sizes from new transaction; they may have had the fee subtracted from them
2554 for (unsigned int idx
= 0; idx
< tx
.vout
.size(); idx
++)
2555 tx
.vout
[idx
].nValue
= wtx
.tx
->vout
[idx
].nValue
;
2557 // Add new txins (keeping original txin scriptSig/order)
2558 for (const CTxIn
& txin
: wtx
.tx
->vin
)
2560 if (!coinControl
.IsSelected(txin
.prevout
))
2562 tx
.vin
.push_back(txin
);
2566 LOCK2(cs_main
, cs_wallet
);
2567 LockCoin(txin
.prevout
);
2576 static CFeeRate
GetDiscardRate(const CBlockPolicyEstimator
& estimator
)
2578 unsigned int highest_target
= estimator
.HighestTargetTracked(FeeEstimateHorizon::LONG_HALFLIFE
);
2579 CFeeRate discard_rate
= estimator
.estimateSmartFee(highest_target
, nullptr /* FeeCalculation */, false /* conservative */);
2580 // Don't let discard_rate be greater than longest possible fee estimate if we get a valid fee estimate
2581 discard_rate
= (discard_rate
== CFeeRate(0)) ? CWallet::m_discard_rate
: std::min(discard_rate
, CWallet::m_discard_rate
);
2582 // Discard rate must be at least dustRelayFee
2583 discard_rate
= std::max(discard_rate
, ::dustRelayFee
);
2584 return discard_rate
;
2587 bool CWallet::CreateTransaction(const std::vector
<CRecipient
>& vecSend
, CWalletTx
& wtxNew
, CReserveKey
& reservekey
, CAmount
& nFeeRet
,
2588 int& nChangePosInOut
, std::string
& strFailReason
, const CCoinControl
& coin_control
, bool sign
)
2591 int nChangePosRequest
= nChangePosInOut
;
2592 unsigned int nSubtractFeeFromAmount
= 0;
2593 for (const auto& recipient
: vecSend
)
2595 if (nValue
< 0 || recipient
.nAmount
< 0)
2597 strFailReason
= _("Transaction amounts must not be negative");
2600 nValue
+= recipient
.nAmount
;
2602 if (recipient
.fSubtractFeeFromAmount
)
2603 nSubtractFeeFromAmount
++;
2605 if (vecSend
.empty())
2607 strFailReason
= _("Transaction must have at least one recipient");
2611 wtxNew
.fTimeReceivedIsTxTime
= true;
2612 wtxNew
.BindWallet(this);
2613 CMutableTransaction txNew
;
2615 // Discourage fee sniping.
2617 // For a large miner the value of the transactions in the best block and
2618 // the mempool can exceed the cost of deliberately attempting to mine two
2619 // blocks to orphan the current best block. By setting nLockTime such that
2620 // only the next block can include the transaction, we discourage this
2621 // practice as the height restricted and limited blocksize gives miners
2622 // considering fee sniping fewer options for pulling off this attack.
2624 // A simple way to think about this is from the wallet's point of view we
2625 // always want the blockchain to move forward. By setting nLockTime this
2626 // way we're basically making the statement that we only want this
2627 // transaction to appear in the next block; we don't want to potentially
2628 // encourage reorgs by allowing transactions to appear at lower heights
2629 // than the next block in forks of the best chain.
2631 // Of course, the subsidy is high enough, and transaction volume low
2632 // enough, that fee sniping isn't a problem yet, but by implementing a fix
2633 // now we ensure code won't be written that makes assumptions about
2634 // nLockTime that preclude a fix later.
2635 txNew
.nLockTime
= chainActive
.Height();
2637 // Secondly occasionally randomly pick a nLockTime even further back, so
2638 // that transactions that are delayed after signing for whatever reason,
2639 // e.g. high-latency mix networks and some CoinJoin implementations, have
2641 if (GetRandInt(10) == 0)
2642 txNew
.nLockTime
= std::max(0, (int)txNew
.nLockTime
- GetRandInt(100));
2644 assert(txNew
.nLockTime
<= (unsigned int)chainActive
.Height());
2645 assert(txNew
.nLockTime
< LOCKTIME_THRESHOLD
);
2646 FeeCalculation feeCalc
;
2647 unsigned int nBytes
;
2649 std::set
<CInputCoin
> setCoins
;
2650 LOCK2(cs_main
, cs_wallet
);
2652 std::vector
<COutput
> vAvailableCoins
;
2653 AvailableCoins(vAvailableCoins
, true, &coin_control
);
2655 // Create change script that will be used if we need change
2656 // TODO: pass in scriptChange instead of reservekey so
2657 // change transaction isn't always pay-to-bitcoin-address
2658 CScript scriptChange
;
2660 // coin control: send change to custom address
2661 if (!boost::get
<CNoDestination
>(&coin_control
.destChange
)) {
2662 scriptChange
= GetScriptForDestination(coin_control
.destChange
);
2663 } else { // no coin control: send change to newly generated address
2664 // Note: We use a new key here to keep it from being obvious which side is the change.
2665 // The drawback is that by not reusing a previous key, the change may be lost if a
2666 // backup is restored, if the backup doesn't have the new private key for the change.
2667 // If we reused the old key, it would be possible to add code to look for and
2668 // rediscover unknown transactions that were written with keys of ours to recover
2669 // post-backup change.
2671 // Reserve a new key pair from key pool
2674 ret
= reservekey
.GetReservedKey(vchPubKey
, true);
2677 strFailReason
= _("Keypool ran out, please call keypoolrefill first");
2681 scriptChange
= GetScriptForDestination(vchPubKey
.GetID());
2683 CTxOut
change_prototype_txout(0, scriptChange
);
2684 size_t change_prototype_size
= GetSerializeSize(change_prototype_txout
, SER_DISK
, 0);
2686 CFeeRate discard_rate
= GetDiscardRate(::feeEstimator
);
2688 bool pick_new_inputs
= true;
2689 CAmount nValueIn
= 0;
2690 // Start with no fee and loop until there is enough fee
2693 nChangePosInOut
= nChangePosRequest
;
2696 wtxNew
.fFromMe
= true;
2699 CAmount nValueToSelect
= nValue
;
2700 if (nSubtractFeeFromAmount
== 0)
2701 nValueToSelect
+= nFeeRet
;
2702 // vouts to the payees
2703 for (const auto& recipient
: vecSend
)
2705 CTxOut
txout(recipient
.nAmount
, recipient
.scriptPubKey
);
2707 if (recipient
.fSubtractFeeFromAmount
)
2709 txout
.nValue
-= nFeeRet
/ nSubtractFeeFromAmount
; // Subtract fee equally from each selected recipient
2711 if (fFirst
) // first receiver pays the remainder not divisible by output count
2714 txout
.nValue
-= nFeeRet
% nSubtractFeeFromAmount
;
2718 if (IsDust(txout
, ::dustRelayFee
))
2720 if (recipient
.fSubtractFeeFromAmount
&& nFeeRet
> 0)
2722 if (txout
.nValue
< 0)
2723 strFailReason
= _("The transaction amount is too small to pay the fee");
2725 strFailReason
= _("The transaction amount is too small to send after the fee has been deducted");
2728 strFailReason
= _("Transaction amount too small");
2731 txNew
.vout
.push_back(txout
);
2734 // Choose coins to use
2735 if (pick_new_inputs
) {
2738 if (!SelectCoins(vAvailableCoins
, nValueToSelect
, setCoins
, nValueIn
, &coin_control
))
2740 strFailReason
= _("Insufficient funds");
2745 const CAmount nChange
= nValueIn
- nValueToSelect
;
2749 // Fill a vout to ourself
2750 CTxOut
newTxOut(nChange
, scriptChange
);
2752 // Never create dust outputs; if we would, just
2753 // add the dust to the fee.
2754 if (IsDust(newTxOut
, discard_rate
))
2756 nChangePosInOut
= -1;
2761 if (nChangePosInOut
== -1)
2763 // Insert change txn at random position:
2764 nChangePosInOut
= GetRandInt(txNew
.vout
.size()+1);
2766 else if ((unsigned int)nChangePosInOut
> txNew
.vout
.size())
2768 strFailReason
= _("Change index out of range");
2772 std::vector
<CTxOut
>::iterator position
= txNew
.vout
.begin()+nChangePosInOut
;
2773 txNew
.vout
.insert(position
, newTxOut
);
2776 nChangePosInOut
= -1;
2781 // Note how the sequence number is set to non-maxint so that
2782 // the nLockTime set above actually works.
2784 // BIP125 defines opt-in RBF as any nSequence < maxint-1, so
2785 // we use the highest possible value in that range (maxint-2)
2786 // to avoid conflicting with other possible uses of nSequence,
2787 // and in the spirit of "smallest possible change from prior
2789 const uint32_t nSequence
= coin_control
.signalRbf
? MAX_BIP125_RBF_SEQUENCE
: (CTxIn::SEQUENCE_FINAL
- 1);
2790 for (const auto& coin
: setCoins
)
2791 txNew
.vin
.push_back(CTxIn(coin
.outpoint
,CScript(),
2794 // Fill in dummy signatures for fee calculation.
2795 if (!DummySignTx(txNew
, setCoins
)) {
2796 strFailReason
= _("Signing transaction failed");
2800 nBytes
= GetVirtualTransactionSize(txNew
);
2802 // Remove scriptSigs to eliminate the fee calculation dummy signatures
2803 for (auto& vin
: txNew
.vin
) {
2804 vin
.scriptSig
= CScript();
2805 vin
.scriptWitness
.SetNull();
2808 CAmount nFeeNeeded
= GetMinimumFee(nBytes
, coin_control
, ::mempool
, ::feeEstimator
, &feeCalc
);
2810 // If we made it here and we aren't even able to meet the relay fee on the next pass, give up
2811 // because we must be at the maximum allowed fee.
2812 if (nFeeNeeded
< ::minRelayTxFee
.GetFee(nBytes
))
2814 strFailReason
= _("Transaction too large for fee policy");
2818 if (nFeeRet
>= nFeeNeeded
) {
2819 // Reduce fee to only the needed amount if possible. This
2820 // prevents potential overpayment in fees if the coins
2821 // selected to meet nFeeNeeded result in a transaction that
2822 // requires less fee than the prior iteration.
2824 // TODO: The case where nSubtractFeeFromAmount > 0 remains
2825 // to be addressed because it requires returning the fee to
2826 // the payees and not the change output.
2828 // If we have no change and a big enough excess fee, then
2829 // try to construct transaction again only without picking
2830 // new inputs. We now know we only need the smaller fee
2831 // (because of reduced tx size) and so we should add a
2832 // change output. Only try this once.
2833 CAmount fee_needed_for_change
= GetMinimumFee(change_prototype_size
, coin_control
, ::mempool
, ::feeEstimator
, nullptr);
2834 CAmount minimum_value_for_change
= GetDustThreshold(change_prototype_txout
, discard_rate
);
2835 CAmount max_excess_fee
= fee_needed_for_change
+ minimum_value_for_change
;
2836 if (nFeeRet
> nFeeNeeded
+ max_excess_fee
&& nChangePosInOut
== -1 && nSubtractFeeFromAmount
== 0 && pick_new_inputs
) {
2837 pick_new_inputs
= false;
2838 nFeeRet
= nFeeNeeded
+ fee_needed_for_change
;
2842 // If we have change output already, just increase it
2843 if (nFeeRet
> nFeeNeeded
&& nChangePosInOut
!= -1 && nSubtractFeeFromAmount
== 0) {
2844 CAmount extraFeePaid
= nFeeRet
- nFeeNeeded
;
2845 std::vector
<CTxOut
>::iterator change_position
= txNew
.vout
.begin()+nChangePosInOut
;
2846 change_position
->nValue
+= extraFeePaid
;
2847 nFeeRet
-= extraFeePaid
;
2849 break; // Done, enough fee included.
2851 else if (!pick_new_inputs
) {
2852 // This shouldn't happen, we should have had enough excess
2853 // fee to pay for the new output and still meet nFeeNeeded
2854 strFailReason
= _("Transaction fee and change calculation failed");
2858 // Try to reduce change to include necessary fee
2859 if (nChangePosInOut
!= -1 && nSubtractFeeFromAmount
== 0) {
2860 CAmount additionalFeeNeeded
= nFeeNeeded
- nFeeRet
;
2861 std::vector
<CTxOut
>::iterator change_position
= txNew
.vout
.begin()+nChangePosInOut
;
2862 // Only reduce change if remaining amount is still a large enough output.
2863 if (change_position
->nValue
>= MIN_FINAL_CHANGE
+ additionalFeeNeeded
) {
2864 change_position
->nValue
-= additionalFeeNeeded
;
2865 nFeeRet
+= additionalFeeNeeded
;
2866 break; // Done, able to increase fee from change
2870 // Include more fee and try again.
2871 nFeeRet
= nFeeNeeded
;
2876 if (nChangePosInOut
== -1) reservekey
.ReturnKey(); // Return any reserved key if we don't have change
2880 CTransaction
txNewConst(txNew
);
2882 for (const auto& coin
: setCoins
)
2884 const CScript
& scriptPubKey
= coin
.txout
.scriptPubKey
;
2885 SignatureData sigdata
;
2887 if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst
, nIn
, coin
.txout
.nValue
, SIGHASH_ALL
), scriptPubKey
, sigdata
))
2889 strFailReason
= _("Signing transaction failed");
2892 UpdateTransaction(txNew
, nIn
, sigdata
);
2899 // Embed the constructed transaction data in wtxNew.
2900 wtxNew
.SetTx(MakeTransactionRef(std::move(txNew
)));
2903 if (GetTransactionWeight(wtxNew
) >= MAX_STANDARD_TX_WEIGHT
)
2905 strFailReason
= _("Transaction too large");
2910 if (GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS
)) {
2911 // Lastly, ensure this tx will pass the mempool's chain limits
2913 CTxMemPoolEntry
entry(wtxNew
.tx
, 0, 0, 0, false, 0, lp
);
2914 CTxMemPool::setEntries setAncestors
;
2915 size_t nLimitAncestors
= GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT
);
2916 size_t nLimitAncestorSize
= GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT
)*1000;
2917 size_t nLimitDescendants
= GetArg("-limitdescendantcount", DEFAULT_DESCENDANT_LIMIT
);
2918 size_t nLimitDescendantSize
= GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT
)*1000;
2919 std::string errString
;
2920 if (!mempool
.CalculateMemPoolAncestors(entry
, setAncestors
, nLimitAncestors
, nLimitAncestorSize
, nLimitDescendants
, nLimitDescendantSize
, errString
)) {
2921 strFailReason
= _("Transaction has too long of a mempool chain");
2926 LogPrintf("Fee Calculation: Fee:%d Bytes:%u Tgt:%d (requested %d) Reason:\"%s\" Decay %.5f: Estimation: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out) Fail: (%g - %g) %.2f%% %.1f/(%.1f %d mem %.1f out)\n",
2927 nFeeRet
, nBytes
, feeCalc
.returnedTarget
, feeCalc
.desiredTarget
, StringForFeeReason(feeCalc
.reason
), feeCalc
.est
.decay
,
2928 feeCalc
.est
.pass
.start
, feeCalc
.est
.pass
.end
,
2929 100 * feeCalc
.est
.pass
.withinTarget
/ (feeCalc
.est
.pass
.totalConfirmed
+ feeCalc
.est
.pass
.inMempool
+ feeCalc
.est
.pass
.leftMempool
),
2930 feeCalc
.est
.pass
.withinTarget
, feeCalc
.est
.pass
.totalConfirmed
, feeCalc
.est
.pass
.inMempool
, feeCalc
.est
.pass
.leftMempool
,
2931 feeCalc
.est
.fail
.start
, feeCalc
.est
.fail
.end
,
2932 100 * feeCalc
.est
.fail
.withinTarget
/ (feeCalc
.est
.fail
.totalConfirmed
+ feeCalc
.est
.fail
.inMempool
+ feeCalc
.est
.fail
.leftMempool
),
2933 feeCalc
.est
.fail
.withinTarget
, feeCalc
.est
.fail
.totalConfirmed
, feeCalc
.est
.fail
.inMempool
, feeCalc
.est
.fail
.leftMempool
);
2938 * Call after CreateTransaction unless you want to abort
2940 bool CWallet::CommitTransaction(CWalletTx
& wtxNew
, CReserveKey
& reservekey
, CConnman
* connman
, CValidationState
& state
)
2943 LOCK2(cs_main
, cs_wallet
);
2944 LogPrintf("CommitTransaction:\n%s", wtxNew
.tx
->ToString());
2946 // Take key pair from key pool so it won't be used again
2947 reservekey
.KeepKey();
2949 // Add tx to wallet, because if it has change it's also ours,
2950 // otherwise just for transaction history.
2951 AddToWallet(wtxNew
);
2953 // Notify that old coins are spent
2954 for (const CTxIn
& txin
: wtxNew
.tx
->vin
)
2956 CWalletTx
&coin
= mapWallet
[txin
.prevout
.hash
];
2957 coin
.BindWallet(this);
2958 NotifyTransactionChanged(this, coin
.GetHash(), CT_UPDATED
);
2962 // Track how many getdata requests our transaction gets
2963 mapRequestCount
[wtxNew
.GetHash()] = 0;
2965 if (fBroadcastTransactions
)
2968 if (!wtxNew
.AcceptToMemoryPool(maxTxFee
, state
)) {
2969 LogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", state
.GetRejectReason());
2970 // TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
2972 wtxNew
.RelayWalletTransaction(connman
);
2979 void CWallet::ListAccountCreditDebit(const std::string
& strAccount
, std::list
<CAccountingEntry
>& entries
) {
2980 CWalletDB
walletdb(*dbw
);
2981 return walletdb
.ListAccountCreditDebit(strAccount
, entries
);
2984 bool CWallet::AddAccountingEntry(const CAccountingEntry
& acentry
)
2986 CWalletDB
walletdb(*dbw
);
2988 return AddAccountingEntry(acentry
, &walletdb
);
2991 bool CWallet::AddAccountingEntry(const CAccountingEntry
& acentry
, CWalletDB
*pwalletdb
)
2993 if (!pwalletdb
->WriteAccountingEntry(++nAccountingEntryNumber
, acentry
)) {
2997 laccentries
.push_back(acentry
);
2998 CAccountingEntry
& entry
= laccentries
.back();
2999 wtxOrdered
.insert(std::make_pair(entry
.nOrderPos
, TxPair((CWalletTx
*)0, &entry
)));
3004 CAmount
CWallet::GetRequiredFee(unsigned int nTxBytes
)
3006 return std::max(minTxFee
.GetFee(nTxBytes
), ::minRelayTxFee
.GetFee(nTxBytes
));
3009 CAmount
CWallet::GetMinimumFee(unsigned int nTxBytes
, const CCoinControl
& coin_control
, const CTxMemPool
& pool
, const CBlockPolicyEstimator
& estimator
, FeeCalculation
*feeCalc
)
3011 /* User control of how to calculate fee uses the following parameter precedence:
3012 1. coin_control.m_feerate
3013 2. coin_control.m_confirm_target
3014 3. payTxFee (user-set global variable)
3015 4. nTxConfirmTarget (user-set global variable)
3016 The first parameter that is set is used.
3019 if (coin_control
.m_feerate
) { // 1.
3020 fee_needed
= coin_control
.m_feerate
->GetFee(nTxBytes
);
3021 if (feeCalc
) feeCalc
->reason
= FeeReason::PAYTXFEE
;
3022 // Allow to override automatic min/max check over coin control instance
3023 if (coin_control
.fOverrideFeeRate
) return fee_needed
;
3025 else if (!coin_control
.m_confirm_target
&& ::payTxFee
!= CFeeRate(0)) { // 3. TODO: remove magic value of 0 for global payTxFee
3026 fee_needed
= ::payTxFee
.GetFee(nTxBytes
);
3027 if (feeCalc
) feeCalc
->reason
= FeeReason::PAYTXFEE
;
3030 // We will use smart fee estimation
3031 unsigned int target
= coin_control
.m_confirm_target
? *coin_control
.m_confirm_target
: ::nTxConfirmTarget
;
3032 // By default estimates are economical iff we are signaling opt-in-RBF
3033 bool conservative_estimate
= !coin_control
.signalRbf
;
3034 // Allow to override the default fee estimate mode over the CoinControl instance
3035 if (coin_control
.m_fee_mode
== FeeEstimateMode::CONSERVATIVE
) conservative_estimate
= true;
3036 else if (coin_control
.m_fee_mode
== FeeEstimateMode::ECONOMICAL
) conservative_estimate
= false;
3038 fee_needed
= estimator
.estimateSmartFee(target
, feeCalc
, conservative_estimate
).GetFee(nTxBytes
);
3039 if (fee_needed
== 0) {
3040 // if we don't have enough data for estimateSmartFee, then use fallbackFee
3041 fee_needed
= fallbackFee
.GetFee(nTxBytes
);
3042 if (feeCalc
) feeCalc
->reason
= FeeReason::FALLBACK
;
3044 // Obey mempool min fee when using smart fee estimation
3045 CAmount min_mempool_fee
= pool
.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE
) * 1000000).GetFee(nTxBytes
);
3046 if (fee_needed
< min_mempool_fee
) {
3047 fee_needed
= min_mempool_fee
;
3048 if (feeCalc
) feeCalc
->reason
= FeeReason::MEMPOOL_MIN
;
3052 // prevent user from paying a fee below minRelayTxFee or minTxFee
3053 CAmount required_fee
= GetRequiredFee(nTxBytes
);
3054 if (required_fee
> fee_needed
) {
3055 fee_needed
= required_fee
;
3056 if (feeCalc
) feeCalc
->reason
= FeeReason::REQUIRED
;
3058 // But always obey the maximum
3059 if (fee_needed
> maxTxFee
) {
3060 fee_needed
= maxTxFee
;
3061 if (feeCalc
) feeCalc
->reason
= FeeReason::MAXTXFEE
;
3069 DBErrors
CWallet::LoadWallet(bool& fFirstRunRet
)
3071 fFirstRunRet
= false;
3072 DBErrors nLoadWalletRet
= CWalletDB(*dbw
,"cr+").LoadWallet(this);
3073 if (nLoadWalletRet
== DB_NEED_REWRITE
)
3075 if (dbw
->Rewrite("\x04pool"))
3078 setInternalKeyPool
.clear();
3079 setExternalKeyPool
.clear();
3080 // Note: can't top-up keypool here, because wallet is locked.
3081 // User will be prompted to unlock wallet the next operation
3082 // that requires a new key.
3086 if (nLoadWalletRet
!= DB_LOAD_OK
)
3087 return nLoadWalletRet
;
3088 fFirstRunRet
= !vchDefaultKey
.IsValid();
3090 uiInterface
.LoadWallet(this);
3095 DBErrors
CWallet::ZapSelectTx(std::vector
<uint256
>& vHashIn
, std::vector
<uint256
>& vHashOut
)
3097 AssertLockHeld(cs_wallet
); // mapWallet
3098 vchDefaultKey
= CPubKey();
3099 DBErrors nZapSelectTxRet
= CWalletDB(*dbw
,"cr+").ZapSelectTx(vHashIn
, vHashOut
);
3100 for (uint256 hash
: vHashOut
)
3101 mapWallet
.erase(hash
);
3103 if (nZapSelectTxRet
== DB_NEED_REWRITE
)
3105 if (dbw
->Rewrite("\x04pool"))
3107 setInternalKeyPool
.clear();
3108 setExternalKeyPool
.clear();
3109 // Note: can't top-up keypool here, because wallet is locked.
3110 // User will be prompted to unlock wallet the next operation
3111 // that requires a new key.
3115 if (nZapSelectTxRet
!= DB_LOAD_OK
)
3116 return nZapSelectTxRet
;
3124 DBErrors
CWallet::ZapWalletTx(std::vector
<CWalletTx
>& vWtx
)
3126 vchDefaultKey
= CPubKey();
3127 DBErrors nZapWalletTxRet
= CWalletDB(*dbw
,"cr+").ZapWalletTx(vWtx
);
3128 if (nZapWalletTxRet
== DB_NEED_REWRITE
)
3130 if (dbw
->Rewrite("\x04pool"))
3133 setInternalKeyPool
.clear();
3134 setExternalKeyPool
.clear();
3135 // Note: can't top-up keypool here, because wallet is locked.
3136 // User will be prompted to unlock wallet the next operation
3137 // that requires a new key.
3141 if (nZapWalletTxRet
!= DB_LOAD_OK
)
3142 return nZapWalletTxRet
;
3148 bool CWallet::SetAddressBook(const CTxDestination
& address
, const std::string
& strName
, const std::string
& strPurpose
)
3150 bool fUpdated
= false;
3152 LOCK(cs_wallet
); // mapAddressBook
3153 std::map
<CTxDestination
, CAddressBookData
>::iterator mi
= mapAddressBook
.find(address
);
3154 fUpdated
= mi
!= mapAddressBook
.end();
3155 mapAddressBook
[address
].name
= strName
;
3156 if (!strPurpose
.empty()) /* update purpose only if requested */
3157 mapAddressBook
[address
].purpose
= strPurpose
;
3159 NotifyAddressBookChanged(this, address
, strName
, ::IsMine(*this, address
) != ISMINE_NO
,
3160 strPurpose
, (fUpdated
? CT_UPDATED
: CT_NEW
) );
3161 if (!strPurpose
.empty() && !CWalletDB(*dbw
).WritePurpose(CBitcoinAddress(address
).ToString(), strPurpose
))
3163 return CWalletDB(*dbw
).WriteName(CBitcoinAddress(address
).ToString(), strName
);
3166 bool CWallet::DelAddressBook(const CTxDestination
& address
)
3169 LOCK(cs_wallet
); // mapAddressBook
3171 // Delete destdata tuples associated with address
3172 std::string strAddress
= CBitcoinAddress(address
).ToString();
3173 for (const std::pair
<std::string
, std::string
> &item
: mapAddressBook
[address
].destdata
)
3175 CWalletDB(*dbw
).EraseDestData(strAddress
, item
.first
);
3177 mapAddressBook
.erase(address
);
3180 NotifyAddressBookChanged(this, address
, "", ::IsMine(*this, address
) != ISMINE_NO
, "", CT_DELETED
);
3182 CWalletDB(*dbw
).ErasePurpose(CBitcoinAddress(address
).ToString());
3183 return CWalletDB(*dbw
).EraseName(CBitcoinAddress(address
).ToString());
3186 const std::string
& CWallet::GetAccountName(const CScript
& scriptPubKey
) const
3188 CTxDestination address
;
3189 if (ExtractDestination(scriptPubKey
, address
) && !scriptPubKey
.IsUnspendable()) {
3190 auto mi
= mapAddressBook
.find(address
);
3191 if (mi
!= mapAddressBook
.end()) {
3192 return mi
->second
.name
;
3195 // A scriptPubKey that doesn't have an entry in the address book is
3196 // associated with the default account ("").
3197 const static std::string DEFAULT_ACCOUNT_NAME
;
3198 return DEFAULT_ACCOUNT_NAME
;
3201 bool CWallet::SetDefaultKey(const CPubKey
&vchPubKey
)
3203 if (!CWalletDB(*dbw
).WriteDefaultKey(vchPubKey
))
3205 vchDefaultKey
= vchPubKey
;
3210 * Mark old keypool keys as used,
3211 * and generate all new keys
3213 bool CWallet::NewKeyPool()
3217 CWalletDB
walletdb(*dbw
);
3219 for (int64_t nIndex
: setInternalKeyPool
) {
3220 walletdb
.ErasePool(nIndex
);
3222 setInternalKeyPool
.clear();
3224 for (int64_t nIndex
: setExternalKeyPool
) {
3225 walletdb
.ErasePool(nIndex
);
3227 setExternalKeyPool
.clear();
3229 if (!TopUpKeyPool()) {
3232 LogPrintf("CWallet::NewKeyPool rewrote keypool\n");
3237 size_t CWallet::KeypoolCountExternalKeys()
3239 AssertLockHeld(cs_wallet
); // setExternalKeyPool
3240 return setExternalKeyPool
.size();
3243 void CWallet::LoadKeyPool(int64_t nIndex
, const CKeyPool
&keypool
)
3245 if (keypool
.fInternal
) {
3246 setInternalKeyPool
.insert(nIndex
);
3248 setExternalKeyPool
.insert(nIndex
);
3250 m_max_keypool_index
= std::max(m_max_keypool_index
, nIndex
);
3252 // If no metadata exists yet, create a default with the pool key's
3253 // creation time. Note that this may be overwritten by actually
3254 // stored metadata for that key later, which is fine.
3255 CKeyID keyid
= keypool
.vchPubKey
.GetID();
3256 if (mapKeyMetadata
.count(keyid
) == 0)
3257 mapKeyMetadata
[keyid
] = CKeyMetadata(keypool
.nTime
);
3260 bool CWallet::TopUpKeyPool(unsigned int kpSize
)
3269 unsigned int nTargetSize
;
3271 nTargetSize
= kpSize
;
3273 nTargetSize
= std::max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE
), (int64_t) 0);
3275 // count amount of available keys (internal, external)
3276 // make sure the keypool of external and internal keys fits the user selected target (-keypool)
3277 int64_t missingExternal
= std::max(std::max((int64_t) nTargetSize
, (int64_t) 1) - (int64_t)setExternalKeyPool
.size(), (int64_t) 0);
3278 int64_t missingInternal
= std::max(std::max((int64_t) nTargetSize
, (int64_t) 1) - (int64_t)setInternalKeyPool
.size(), (int64_t) 0);
3280 if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT
))
3282 // don't create extra internal keys
3283 missingInternal
= 0;
3285 bool internal
= false;
3286 CWalletDB
walletdb(*dbw
);
3287 for (int64_t i
= missingInternal
+ missingExternal
; i
--;)
3289 if (i
< missingInternal
) {
3293 assert(m_max_keypool_index
< std::numeric_limits
<int64_t>::max()); // How in the hell did you use so many keys?
3294 int64_t index
= ++m_max_keypool_index
;
3296 if (!walletdb
.WritePool(index
, CKeyPool(GenerateNewKey(walletdb
, internal
), internal
))) {
3297 throw std::runtime_error(std::string(__func__
) + ": writing generated key failed");
3301 setInternalKeyPool
.insert(index
);
3303 setExternalKeyPool
.insert(index
);
3306 if (missingInternal
+ missingExternal
> 0) {
3307 LogPrintf("keypool added %d keys (%d internal), size=%u (%u internal)\n", missingInternal
+ missingExternal
, missingInternal
, setInternalKeyPool
.size() + setExternalKeyPool
.size(), setInternalKeyPool
.size());
3313 void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex
, CKeyPool
& keypool
, bool fRequestedInternal
)
3316 keypool
.vchPubKey
= CPubKey();
3323 bool fReturningInternal
= IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT
) && fRequestedInternal
;
3324 std::set
<int64_t>& setKeyPool
= fReturningInternal
? setInternalKeyPool
: setExternalKeyPool
;
3326 // Get the oldest key
3327 if(setKeyPool
.empty())
3330 CWalletDB
walletdb(*dbw
);
3332 auto it
= setKeyPool
.begin();
3334 setKeyPool
.erase(it
);
3335 if (!walletdb
.ReadPool(nIndex
, keypool
)) {
3336 throw std::runtime_error(std::string(__func__
) + ": read failed");
3338 if (!HaveKey(keypool
.vchPubKey
.GetID())) {
3339 throw std::runtime_error(std::string(__func__
) + ": unknown key in key pool");
3341 if (keypool
.fInternal
!= fReturningInternal
) {
3342 throw std::runtime_error(std::string(__func__
) + ": keypool entry misclassified");
3345 assert(keypool
.vchPubKey
.IsValid());
3346 LogPrintf("keypool reserve %d\n", nIndex
);
3350 void CWallet::KeepKey(int64_t nIndex
)
3352 // Remove from key pool
3353 CWalletDB
walletdb(*dbw
);
3354 walletdb
.ErasePool(nIndex
);
3355 LogPrintf("keypool keep %d\n", nIndex
);
3358 void CWallet::ReturnKey(int64_t nIndex
, bool fInternal
)
3360 // Return to key pool
3364 setInternalKeyPool
.insert(nIndex
);
3366 setExternalKeyPool
.insert(nIndex
);
3369 LogPrintf("keypool return %d\n", nIndex
);
3372 bool CWallet::GetKeyFromPool(CPubKey
& result
, bool internal
)
3378 ReserveKeyFromKeyPool(nIndex
, keypool
, internal
);
3381 if (IsLocked()) return false;
3382 CWalletDB
walletdb(*dbw
);
3383 result
= GenerateNewKey(walletdb
, internal
);
3387 result
= keypool
.vchPubKey
;
3392 static int64_t GetOldestKeyTimeInPool(const std::set
<int64_t>& setKeyPool
, CWalletDB
& walletdb
) {
3393 if (setKeyPool
.empty()) {
3398 int64_t nIndex
= *(setKeyPool
.begin());
3399 if (!walletdb
.ReadPool(nIndex
, keypool
)) {
3400 throw std::runtime_error(std::string(__func__
) + ": read oldest key in keypool failed");
3402 assert(keypool
.vchPubKey
.IsValid());
3403 return keypool
.nTime
;
3406 int64_t CWallet::GetOldestKeyPoolTime()
3410 CWalletDB
walletdb(*dbw
);
3412 // load oldest key from keypool, get time and return
3413 int64_t oldestKey
= GetOldestKeyTimeInPool(setExternalKeyPool
, walletdb
);
3414 if (IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT
)) {
3415 oldestKey
= std::max(GetOldestKeyTimeInPool(setInternalKeyPool
, walletdb
), oldestKey
);
3421 std::map
<CTxDestination
, CAmount
> CWallet::GetAddressBalances()
3423 std::map
<CTxDestination
, CAmount
> balances
;
3427 for (const auto& walletEntry
: mapWallet
)
3429 const CWalletTx
*pcoin
= &walletEntry
.second
;
3431 if (!pcoin
->IsTrusted())
3434 if (pcoin
->IsCoinBase() && pcoin
->GetBlocksToMaturity() > 0)
3437 int nDepth
= pcoin
->GetDepthInMainChain();
3438 if (nDepth
< (pcoin
->IsFromMe(ISMINE_ALL
) ? 0 : 1))
3441 for (unsigned int i
= 0; i
< pcoin
->tx
->vout
.size(); i
++)
3443 CTxDestination addr
;
3444 if (!IsMine(pcoin
->tx
->vout
[i
]))
3446 if(!ExtractDestination(pcoin
->tx
->vout
[i
].scriptPubKey
, addr
))
3449 CAmount n
= IsSpent(walletEntry
.first
, i
) ? 0 : pcoin
->tx
->vout
[i
].nValue
;
3451 if (!balances
.count(addr
))
3453 balances
[addr
] += n
;
3461 std::set
< std::set
<CTxDestination
> > CWallet::GetAddressGroupings()
3463 AssertLockHeld(cs_wallet
); // mapWallet
3464 std::set
< std::set
<CTxDestination
> > groupings
;
3465 std::set
<CTxDestination
> grouping
;
3467 for (const auto& walletEntry
: mapWallet
)
3469 const CWalletTx
*pcoin
= &walletEntry
.second
;
3471 if (pcoin
->tx
->vin
.size() > 0)
3473 bool any_mine
= false;
3474 // group all input addresses with each other
3475 for (CTxIn txin
: pcoin
->tx
->vin
)
3477 CTxDestination address
;
3478 if(!IsMine(txin
)) /* If this input isn't mine, ignore it */
3480 if(!ExtractDestination(mapWallet
[txin
.prevout
.hash
].tx
->vout
[txin
.prevout
.n
].scriptPubKey
, address
))
3482 grouping
.insert(address
);
3486 // group change with input addresses
3489 for (CTxOut txout
: pcoin
->tx
->vout
)
3490 if (IsChange(txout
))
3492 CTxDestination txoutAddr
;
3493 if(!ExtractDestination(txout
.scriptPubKey
, txoutAddr
))
3495 grouping
.insert(txoutAddr
);
3498 if (grouping
.size() > 0)
3500 groupings
.insert(grouping
);
3505 // group lone addrs by themselves
3506 for (const auto& txout
: pcoin
->tx
->vout
)
3509 CTxDestination address
;
3510 if(!ExtractDestination(txout
.scriptPubKey
, address
))
3512 grouping
.insert(address
);
3513 groupings
.insert(grouping
);
3518 std::set
< std::set
<CTxDestination
>* > uniqueGroupings
; // a set of pointers to groups of addresses
3519 std::map
< CTxDestination
, std::set
<CTxDestination
>* > setmap
; // map addresses to the unique group containing it
3520 for (std::set
<CTxDestination
> _grouping
: groupings
)
3522 // make a set of all the groups hit by this new group
3523 std::set
< std::set
<CTxDestination
>* > hits
;
3524 std::map
< CTxDestination
, std::set
<CTxDestination
>* >::iterator it
;
3525 for (CTxDestination address
: _grouping
)
3526 if ((it
= setmap
.find(address
)) != setmap
.end())
3527 hits
.insert((*it
).second
);
3529 // merge all hit groups into a new single group and delete old groups
3530 std::set
<CTxDestination
>* merged
= new std::set
<CTxDestination
>(_grouping
);
3531 for (std::set
<CTxDestination
>* hit
: hits
)
3533 merged
->insert(hit
->begin(), hit
->end());
3534 uniqueGroupings
.erase(hit
);
3537 uniqueGroupings
.insert(merged
);
3540 for (CTxDestination element
: *merged
)
3541 setmap
[element
] = merged
;
3544 std::set
< std::set
<CTxDestination
> > ret
;
3545 for (std::set
<CTxDestination
>* uniqueGrouping
: uniqueGroupings
)
3547 ret
.insert(*uniqueGrouping
);
3548 delete uniqueGrouping
;
3554 std::set
<CTxDestination
> CWallet::GetAccountAddresses(const std::string
& strAccount
) const
3557 std::set
<CTxDestination
> result
;
3558 for (const std::pair
<CTxDestination
, CAddressBookData
>& item
: mapAddressBook
)
3560 const CTxDestination
& address
= item
.first
;
3561 const std::string
& strName
= item
.second
.name
;
3562 if (strName
== strAccount
)
3563 result
.insert(address
);
3568 bool CReserveKey::GetReservedKey(CPubKey
& pubkey
, bool internal
)
3573 pwallet
->ReserveKeyFromKeyPool(nIndex
, keypool
, internal
);
3575 vchPubKey
= keypool
.vchPubKey
;
3579 fInternal
= keypool
.fInternal
;
3581 assert(vchPubKey
.IsValid());
3586 void CReserveKey::KeepKey()
3589 pwallet
->KeepKey(nIndex
);
3591 vchPubKey
= CPubKey();
3594 void CReserveKey::ReturnKey()
3597 pwallet
->ReturnKey(nIndex
, fInternal
);
3600 vchPubKey
= CPubKey();
3603 static void LoadReserveKeysToSet(std::set
<CKeyID
>& setAddress
, const std::set
<int64_t>& setKeyPool
, CWalletDB
& walletdb
) {
3604 for (const int64_t& id
: setKeyPool
)
3607 if (!walletdb
.ReadPool(id
, keypool
))
3608 throw std::runtime_error(std::string(__func__
) + ": read failed");
3609 assert(keypool
.vchPubKey
.IsValid());
3610 CKeyID keyID
= keypool
.vchPubKey
.GetID();
3611 setAddress
.insert(keyID
);
3615 void CWallet::GetAllReserveKeys(std::set
<CKeyID
>& setAddress
) const
3619 CWalletDB
walletdb(*dbw
);
3621 LOCK2(cs_main
, cs_wallet
);
3622 LoadReserveKeysToSet(setAddress
, setInternalKeyPool
, walletdb
);
3623 LoadReserveKeysToSet(setAddress
, setExternalKeyPool
, walletdb
);
3625 for (const CKeyID
& keyID
: setAddress
) {
3626 if (!HaveKey(keyID
)) {
3627 throw std::runtime_error(std::string(__func__
) + ": unknown key in key pool");
3632 void CWallet::GetScriptForMining(std::shared_ptr
<CReserveScript
> &script
)
3634 std::shared_ptr
<CReserveKey
> rKey
= std::make_shared
<CReserveKey
>(this);
3636 if (!rKey
->GetReservedKey(pubkey
))
3640 script
->reserveScript
= CScript() << ToByteVector(pubkey
) << OP_CHECKSIG
;
3643 void CWallet::LockCoin(const COutPoint
& output
)
3645 AssertLockHeld(cs_wallet
); // setLockedCoins
3646 setLockedCoins
.insert(output
);
3649 void CWallet::UnlockCoin(const COutPoint
& output
)
3651 AssertLockHeld(cs_wallet
); // setLockedCoins
3652 setLockedCoins
.erase(output
);
3655 void CWallet::UnlockAllCoins()
3657 AssertLockHeld(cs_wallet
); // setLockedCoins
3658 setLockedCoins
.clear();
3661 bool CWallet::IsLockedCoin(uint256 hash
, unsigned int n
) const
3663 AssertLockHeld(cs_wallet
); // setLockedCoins
3664 COutPoint
outpt(hash
, n
);
3666 return (setLockedCoins
.count(outpt
) > 0);
3669 void CWallet::ListLockedCoins(std::vector
<COutPoint
>& vOutpts
) const
3671 AssertLockHeld(cs_wallet
); // setLockedCoins
3672 for (std::set
<COutPoint
>::iterator it
= setLockedCoins
.begin();
3673 it
!= setLockedCoins
.end(); it
++) {
3674 COutPoint outpt
= (*it
);
3675 vOutpts
.push_back(outpt
);
3679 /** @} */ // end of Actions
3681 void CWallet::GetKeyBirthTimes(std::map
<CTxDestination
, int64_t> &mapKeyBirth
) const {
3682 AssertLockHeld(cs_wallet
); // mapKeyMetadata
3683 mapKeyBirth
.clear();
3685 // get birth times for keys with metadata
3686 for (const auto& entry
: mapKeyMetadata
) {
3687 if (entry
.second
.nCreateTime
) {
3688 mapKeyBirth
[entry
.first
] = entry
.second
.nCreateTime
;
3692 // map in which we'll infer heights of other keys
3693 CBlockIndex
*pindexMax
= chainActive
[std::max(0, chainActive
.Height() - 144)]; // the tip can be reorganized; use a 144-block safety margin
3694 std::map
<CKeyID
, CBlockIndex
*> mapKeyFirstBlock
;
3695 std::set
<CKeyID
> setKeys
;
3697 for (const CKeyID
&keyid
: setKeys
) {
3698 if (mapKeyBirth
.count(keyid
) == 0)
3699 mapKeyFirstBlock
[keyid
] = pindexMax
;
3703 // if there are no such keys, we're done
3704 if (mapKeyFirstBlock
.empty())
3707 // find first block that affects those keys, if there are any left
3708 std::vector
<CKeyID
> vAffected
;
3709 for (std::map
<uint256
, CWalletTx
>::const_iterator it
= mapWallet
.begin(); it
!= mapWallet
.end(); it
++) {
3710 // iterate over all wallet transactions...
3711 const CWalletTx
&wtx
= (*it
).second
;
3712 BlockMap::const_iterator blit
= mapBlockIndex
.find(wtx
.hashBlock
);
3713 if (blit
!= mapBlockIndex
.end() && chainActive
.Contains(blit
->second
)) {
3714 // ... which are already in a block
3715 int nHeight
= blit
->second
->nHeight
;
3716 for (const CTxOut
&txout
: wtx
.tx
->vout
) {
3717 // iterate over all their outputs
3718 CAffectedKeysVisitor(*this, vAffected
).Process(txout
.scriptPubKey
);
3719 for (const CKeyID
&keyid
: vAffected
) {
3720 // ... and all their affected keys
3721 std::map
<CKeyID
, CBlockIndex
*>::iterator rit
= mapKeyFirstBlock
.find(keyid
);
3722 if (rit
!= mapKeyFirstBlock
.end() && nHeight
< rit
->second
->nHeight
)
3723 rit
->second
= blit
->second
;
3730 // Extract block timestamps for those keys
3731 for (std::map
<CKeyID
, CBlockIndex
*>::const_iterator it
= mapKeyFirstBlock
.begin(); it
!= mapKeyFirstBlock
.end(); it
++)
3732 mapKeyBirth
[it
->first
] = it
->second
->GetBlockTime() - TIMESTAMP_WINDOW
; // block times can be 2h off
3736 * Compute smart timestamp for a transaction being added to the wallet.
3739 * - If sending a transaction, assign its timestamp to the current time.
3740 * - If receiving a transaction outside a block, assign its timestamp to the
3742 * - If receiving a block with a future timestamp, assign all its (not already
3743 * known) transactions' timestamps to the current time.
3744 * - If receiving a block with a past timestamp, before the most recent known
3745 * transaction (that we care about), assign all its (not already known)
3746 * transactions' timestamps to the same timestamp as that most-recent-known
3748 * - If receiving a block with a past timestamp, but after the most recent known
3749 * transaction, assign all its (not already known) transactions' timestamps to
3752 * For more information see CWalletTx::nTimeSmart,
3753 * https://bitcointalk.org/?topic=54527, or
3754 * https://github.com/bitcoin/bitcoin/pull/1393.
3756 unsigned int CWallet::ComputeTimeSmart(const CWalletTx
& wtx
) const
3758 unsigned int nTimeSmart
= wtx
.nTimeReceived
;
3759 if (!wtx
.hashUnset()) {
3760 if (mapBlockIndex
.count(wtx
.hashBlock
)) {
3761 int64_t latestNow
= wtx
.nTimeReceived
;
3762 int64_t latestEntry
= 0;
3764 // Tolerate times up to the last timestamp in the wallet not more than 5 minutes into the future
3765 int64_t latestTolerated
= latestNow
+ 300;
3766 const TxItems
& txOrdered
= wtxOrdered
;
3767 for (auto it
= txOrdered
.rbegin(); it
!= txOrdered
.rend(); ++it
) {
3768 CWalletTx
* const pwtx
= it
->second
.first
;
3772 CAccountingEntry
* const pacentry
= it
->second
.second
;
3775 nSmartTime
= pwtx
->nTimeSmart
;
3777 nSmartTime
= pwtx
->nTimeReceived
;
3780 nSmartTime
= pacentry
->nTime
;
3782 if (nSmartTime
<= latestTolerated
) {
3783 latestEntry
= nSmartTime
;
3784 if (nSmartTime
> latestNow
) {
3785 latestNow
= nSmartTime
;
3791 int64_t blocktime
= mapBlockIndex
[wtx
.hashBlock
]->GetBlockTime();
3792 nTimeSmart
= std::max(latestEntry
, std::min(blocktime
, latestNow
));
3794 LogPrintf("%s: found %s in block %s not in index\n", __func__
, wtx
.GetHash().ToString(), wtx
.hashBlock
.ToString());
3800 bool CWallet::AddDestData(const CTxDestination
&dest
, const std::string
&key
, const std::string
&value
)
3802 if (boost::get
<CNoDestination
>(&dest
))
3805 mapAddressBook
[dest
].destdata
.insert(std::make_pair(key
, value
));
3806 return CWalletDB(*dbw
).WriteDestData(CBitcoinAddress(dest
).ToString(), key
, value
);
3809 bool CWallet::EraseDestData(const CTxDestination
&dest
, const std::string
&key
)
3811 if (!mapAddressBook
[dest
].destdata
.erase(key
))
3813 return CWalletDB(*dbw
).EraseDestData(CBitcoinAddress(dest
).ToString(), key
);
3816 bool CWallet::LoadDestData(const CTxDestination
&dest
, const std::string
&key
, const std::string
&value
)
3818 mapAddressBook
[dest
].destdata
.insert(std::make_pair(key
, value
));
3822 bool CWallet::GetDestData(const CTxDestination
&dest
, const std::string
&key
, std::string
*value
) const
3824 std::map
<CTxDestination
, CAddressBookData
>::const_iterator i
= mapAddressBook
.find(dest
);
3825 if(i
!= mapAddressBook
.end())
3827 CAddressBookData::StringMap::const_iterator j
= i
->second
.destdata
.find(key
);
3828 if(j
!= i
->second
.destdata
.end())
3838 std::vector
<std::string
> CWallet::GetDestValues(const std::string
& prefix
) const
3841 std::vector
<std::string
> values
;
3842 for (const auto& address
: mapAddressBook
) {
3843 for (const auto& data
: address
.second
.destdata
) {
3844 if (!data
.first
.compare(0, prefix
.size(), prefix
)) {
3845 values
.emplace_back(data
.second
);
3852 std::string
CWallet::GetWalletHelpString(bool showDebug
)
3854 std::string strUsage
= HelpMessageGroup(_("Wallet options:"));
3855 strUsage
+= HelpMessageOpt("-disablewallet", _("Do not load the wallet and disable wallet RPC calls"));
3856 strUsage
+= HelpMessageOpt("-keypool=<n>", strprintf(_("Set key pool size to <n> (default: %u)"), DEFAULT_KEYPOOL_SIZE
));
3857 strUsage
+= HelpMessageOpt("-fallbackfee=<amt>", strprintf(_("A fee rate (in %s/kB) that will be used when fee estimation has insufficient data (default: %s)"),
3858 CURRENCY_UNIT
, FormatMoney(DEFAULT_FALLBACK_FEE
)));
3859 strUsage
+= HelpMessageOpt("-discardfee=<amt>", strprintf(_("The fee rate (in %s/kB) that indicates your tolerance for discarding change by adding it to the fee (default: %s). "
3860 "Note: An output is discarded if it is dust at this rate, but we will always discard up to the dust relay fee and a discard fee above that is limited by the fee estimate for the longest target"),
3861 CURRENCY_UNIT
, FormatMoney(DEFAULT_DISCARD_FEE
)));
3862 strUsage
+= HelpMessageOpt("-mintxfee=<amt>", strprintf(_("Fees (in %s/kB) smaller than this are considered zero fee for transaction creation (default: %s)"),
3863 CURRENCY_UNIT
, FormatMoney(DEFAULT_TRANSACTION_MINFEE
)));
3864 strUsage
+= HelpMessageOpt("-paytxfee=<amt>", strprintf(_("Fee (in %s/kB) to add to transactions you send (default: %s)"),
3865 CURRENCY_UNIT
, FormatMoney(payTxFee
.GetFeePerK())));
3866 strUsage
+= HelpMessageOpt("-rescan", _("Rescan the block chain for missing wallet transactions on startup"));
3867 strUsage
+= HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet on startup"));
3868 strUsage
+= HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), DEFAULT_SPEND_ZEROCONF_CHANGE
));
3869 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
));
3870 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
));
3871 strUsage
+= HelpMessageOpt("-walletrbf", strprintf(_("Send transactions with full-RBF opt-in enabled (default: %u)"), DEFAULT_WALLET_RBF
));
3872 strUsage
+= HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format on startup"));
3873 strUsage
+= HelpMessageOpt("-wallet=<file>", _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), DEFAULT_WALLET_DAT
));
3874 strUsage
+= HelpMessageOpt("-walletbroadcast", _("Make the wallet broadcast transactions") + " " + strprintf(_("(default: %u)"), DEFAULT_WALLETBROADCAST
));
3875 strUsage
+= HelpMessageOpt("-walletnotify=<cmd>", _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)"));
3876 strUsage
+= HelpMessageOpt("-zapwallettxes=<mode>", _("Delete all wallet transactions and only recover those parts of the blockchain through -rescan on startup") +
3877 " " + _("(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)"));
3881 strUsage
+= HelpMessageGroup(_("Wallet debugging/testing options:"));
3883 strUsage
+= HelpMessageOpt("-dblogsize=<n>", strprintf("Flush wallet database activity from memory to disk log every <n> megabytes (default: %u)", DEFAULT_WALLET_DBLOGSIZE
));
3884 strUsage
+= HelpMessageOpt("-flushwallet", strprintf("Run a thread to flush wallet periodically (default: %u)", DEFAULT_FLUSHWALLET
));
3885 strUsage
+= HelpMessageOpt("-privdb", strprintf("Sets the DB_PRIVATE flag in the wallet db environment (default: %u)", DEFAULT_WALLET_PRIVDB
));
3886 strUsage
+= HelpMessageOpt("-walletrejectlongchains", strprintf(_("Wallet will not create transactions that violate mempool chain limits (default: %u)"), DEFAULT_WALLET_REJECT_LONG_CHAINS
));
3892 CWallet
* CWallet::CreateWalletFromFile(const std::string walletFile
)
3894 // needed to restore wallet transaction meta data after -zapwallettxes
3895 std::vector
<CWalletTx
> vWtx
;
3897 if (GetBoolArg("-zapwallettxes", false)) {
3898 uiInterface
.InitMessage(_("Zapping all transactions from wallet..."));
3900 std::unique_ptr
<CWalletDBWrapper
> dbw(new CWalletDBWrapper(&bitdb
, walletFile
));
3901 CWallet
*tempWallet
= new CWallet(std::move(dbw
));
3902 DBErrors nZapWalletRet
= tempWallet
->ZapWalletTx(vWtx
);
3903 if (nZapWalletRet
!= DB_LOAD_OK
) {
3904 InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile
));
3912 uiInterface
.InitMessage(_("Loading wallet..."));
3914 int64_t nStart
= GetTimeMillis();
3915 bool fFirstRun
= true;
3916 std::unique_ptr
<CWalletDBWrapper
> dbw(new CWalletDBWrapper(&bitdb
, walletFile
));
3917 CWallet
*walletInstance
= new CWallet(std::move(dbw
));
3918 DBErrors nLoadWalletRet
= walletInstance
->LoadWallet(fFirstRun
);
3919 if (nLoadWalletRet
!= DB_LOAD_OK
)
3921 if (nLoadWalletRet
== DB_CORRUPT
) {
3922 InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile
));
3925 else if (nLoadWalletRet
== DB_NONCRITICAL_ERROR
)
3927 InitWarning(strprintf(_("Error reading %s! All keys read correctly, but transaction data"
3928 " or address book entries might be missing or incorrect."),
3931 else if (nLoadWalletRet
== DB_TOO_NEW
) {
3932 InitError(strprintf(_("Error loading %s: Wallet requires newer version of %s"), walletFile
, _(PACKAGE_NAME
)));
3935 else if (nLoadWalletRet
== DB_NEED_REWRITE
)
3937 InitError(strprintf(_("Wallet needed to be rewritten: restart %s to complete"), _(PACKAGE_NAME
)));
3941 InitError(strprintf(_("Error loading %s"), walletFile
));
3946 if (GetBoolArg("-upgradewallet", fFirstRun
))
3948 int nMaxVersion
= GetArg("-upgradewallet", 0);
3949 if (nMaxVersion
== 0) // the -upgradewallet without argument case
3951 LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST
);
3952 nMaxVersion
= CLIENT_VERSION
;
3953 walletInstance
->SetMinVersion(FEATURE_LATEST
); // permanently upgrade the wallet immediately
3956 LogPrintf("Allowing wallet upgrade up to %i\n", nMaxVersion
);
3957 if (nMaxVersion
< walletInstance
->GetVersion())
3959 InitError(_("Cannot downgrade wallet"));
3962 walletInstance
->SetMaxVersion(nMaxVersion
);
3967 // Create new keyUser and set as default key
3968 if (GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET
) && !walletInstance
->IsHDEnabled()) {
3970 // ensure this wallet.dat can only be opened by clients supporting HD with chain split
3971 walletInstance
->SetMinVersion(FEATURE_HD_SPLIT
);
3973 // generate a new master key
3974 CPubKey masterPubKey
= walletInstance
->GenerateNewHDMasterKey();
3975 if (!walletInstance
->SetHDMasterKey(masterPubKey
))
3976 throw std::runtime_error(std::string(__func__
) + ": Storing master key failed");
3978 CPubKey newDefaultKey
;
3979 if (walletInstance
->GetKeyFromPool(newDefaultKey
, false)) {
3980 walletInstance
->SetDefaultKey(newDefaultKey
);
3981 if (!walletInstance
->SetAddressBook(walletInstance
->vchDefaultKey
.GetID(), "", "receive")) {
3982 InitError(_("Cannot write default address") += "\n");
3987 walletInstance
->SetBestChain(chainActive
.GetLocator());
3989 else if (IsArgSet("-usehd")) {
3990 bool useHD
= GetBoolArg("-usehd", DEFAULT_USE_HD_WALLET
);
3991 if (walletInstance
->IsHDEnabled() && !useHD
) {
3992 InitError(strprintf(_("Error loading %s: You can't disable HD on an already existing HD wallet"), walletFile
));
3995 if (!walletInstance
->IsHDEnabled() && useHD
) {
3996 InitError(strprintf(_("Error loading %s: You can't enable HD on an already existing non-HD wallet"), walletFile
));
4001 LogPrintf(" wallet %15dms\n", GetTimeMillis() - nStart
);
4003 RegisterValidationInterface(walletInstance
);
4005 CBlockIndex
*pindexRescan
= chainActive
.Genesis();
4006 if (!GetBoolArg("-rescan", false))
4008 CWalletDB
walletdb(*walletInstance
->dbw
);
4009 CBlockLocator locator
;
4010 if (walletdb
.ReadBestBlock(locator
))
4011 pindexRescan
= FindForkInGlobalIndex(chainActive
, locator
);
4013 if (chainActive
.Tip() && chainActive
.Tip() != pindexRescan
)
4015 //We can't rescan beyond non-pruned blocks, stop and throw an error
4016 //this might happen if a user uses an old wallet within a pruned node
4017 // or if he ran -disablewallet for a longer time, then decided to re-enable
4020 CBlockIndex
*block
= chainActive
.Tip();
4021 while (block
&& block
->pprev
&& (block
->pprev
->nStatus
& BLOCK_HAVE_DATA
) && block
->pprev
->nTx
> 0 && pindexRescan
!= block
)
4022 block
= block
->pprev
;
4024 if (pindexRescan
!= block
) {
4025 InitError(_("Prune: last wallet synchronisation goes beyond pruned data. You need to -reindex (download the whole blockchain again in case of pruned node)"));
4030 uiInterface
.InitMessage(_("Rescanning..."));
4031 LogPrintf("Rescanning last %i blocks (from block %i)...\n", chainActive
.Height() - pindexRescan
->nHeight
, pindexRescan
->nHeight
);
4033 // No need to read and scan block if block was created before
4034 // our wallet birthday (as adjusted for block time variability)
4035 while (pindexRescan
&& walletInstance
->nTimeFirstKey
&& (pindexRescan
->GetBlockTime() < (walletInstance
->nTimeFirstKey
- TIMESTAMP_WINDOW
))) {
4036 pindexRescan
= chainActive
.Next(pindexRescan
);
4039 nStart
= GetTimeMillis();
4040 walletInstance
->ScanForWalletTransactions(pindexRescan
, true);
4041 LogPrintf(" rescan %15dms\n", GetTimeMillis() - nStart
);
4042 walletInstance
->SetBestChain(chainActive
.GetLocator());
4043 walletInstance
->dbw
->IncrementUpdateCounter();
4045 // Restore wallet transaction metadata after -zapwallettxes=1
4046 if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
4048 CWalletDB
walletdb(*walletInstance
->dbw
);
4050 for (const CWalletTx
& wtxOld
: vWtx
)
4052 uint256 hash
= wtxOld
.GetHash();
4053 std::map
<uint256
, CWalletTx
>::iterator mi
= walletInstance
->mapWallet
.find(hash
);
4054 if (mi
!= walletInstance
->mapWallet
.end())
4056 const CWalletTx
* copyFrom
= &wtxOld
;
4057 CWalletTx
* copyTo
= &mi
->second
;
4058 copyTo
->mapValue
= copyFrom
->mapValue
;
4059 copyTo
->vOrderForm
= copyFrom
->vOrderForm
;
4060 copyTo
->nTimeReceived
= copyFrom
->nTimeReceived
;
4061 copyTo
->nTimeSmart
= copyFrom
->nTimeSmart
;
4062 copyTo
->fFromMe
= copyFrom
->fFromMe
;
4063 copyTo
->strFromAccount
= copyFrom
->strFromAccount
;
4064 copyTo
->nOrderPos
= copyFrom
->nOrderPos
;
4065 walletdb
.WriteTx(*copyTo
);
4070 walletInstance
->SetBroadcastTransactions(GetBoolArg("-walletbroadcast", DEFAULT_WALLETBROADCAST
));
4073 LOCK(walletInstance
->cs_wallet
);
4074 LogPrintf("setKeyPool.size() = %u\n", walletInstance
->GetKeyPoolSize());
4075 LogPrintf("mapWallet.size() = %u\n", walletInstance
->mapWallet
.size());
4076 LogPrintf("mapAddressBook.size() = %u\n", walletInstance
->mapAddressBook
.size());
4079 return walletInstance
;
4082 bool CWallet::InitLoadWallet()
4084 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
)) {
4085 LogPrintf("Wallet disabled!\n");
4089 for (const std::string
& walletFile
: gArgs
.GetArgs("-wallet")) {
4090 CWallet
* const pwallet
= CreateWalletFromFile(walletFile
);
4094 vpwallets
.push_back(pwallet
);
4100 std::atomic
<bool> CWallet::fFlushScheduled(false);
4102 void CWallet::postInitProcess(CScheduler
& scheduler
)
4104 // Add wallet transactions that aren't already in a block to mempool
4105 // Do this here as mempool requires genesis block to be loaded
4106 ReacceptWalletTransactions();
4108 // Run a thread to flush wallet periodically
4109 if (!CWallet::fFlushScheduled
.exchange(true)) {
4110 scheduler
.scheduleEvery(MaybeCompactWalletDB
, 500);
4114 bool CWallet::ParameterInteraction()
4116 SoftSetArg("-wallet", DEFAULT_WALLET_DAT
);
4117 const bool is_multiwallet
= gArgs
.GetArgs("-wallet").size() > 1;
4119 if (GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET
))
4122 if (GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY
) && SoftSetBoolArg("-walletbroadcast", false)) {
4123 LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting -walletbroadcast=0\n", __func__
);
4126 if (GetBoolArg("-salvagewallet", false)) {
4127 if (is_multiwallet
) {
4128 return InitError(strprintf("%s is only allowed with a single wallet file", "-salvagewallet"));
4130 // Rewrite just private keys: rescan to find transactions
4131 if (SoftSetBoolArg("-rescan", true)) {
4132 LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__
);
4136 int zapwallettxes
= GetArg("-zapwallettxes", 0);
4137 // -zapwallettxes implies dropping the mempool on startup
4138 if (zapwallettxes
!= 0 && SoftSetBoolArg("-persistmempool", false)) {
4139 LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -persistmempool=0\n", __func__
, zapwallettxes
);
4142 // -zapwallettxes implies a rescan
4143 if (zapwallettxes
!= 0) {
4144 if (is_multiwallet
) {
4145 return InitError(strprintf("%s is only allowed with a single wallet file", "-zapwallettxes"));
4147 if (SoftSetBoolArg("-rescan", true)) {
4148 LogPrintf("%s: parameter interaction: -zapwallettxes=%s -> setting -rescan=1\n", __func__
, zapwallettxes
);
4152 if (is_multiwallet
) {
4153 if (GetBoolArg("-upgradewallet", false)) {
4154 return InitError(strprintf("%s is only allowed with a single wallet file", "-upgradewallet"));
4158 if (GetBoolArg("-sysperms", false))
4159 return InitError("-sysperms is not allowed in combination with enabled wallet functionality");
4160 if (GetArg("-prune", 0) && GetBoolArg("-rescan", false))
4161 return InitError(_("Rescans are not possible in pruned mode. You will need to use -reindex which will download the whole blockchain again."));
4163 if (::minRelayTxFee
.GetFeePerK() > HIGH_TX_FEE_PER_KB
)
4164 InitWarning(AmountHighWarn("-minrelaytxfee") + " " +
4165 _("The wallet will avoid paying less than the minimum relay fee."));
4167 if (IsArgSet("-mintxfee"))
4170 if (!ParseMoney(GetArg("-mintxfee", ""), n
) || 0 == n
)
4171 return InitError(AmountErrMsg("mintxfee", GetArg("-mintxfee", "")));
4172 if (n
> HIGH_TX_FEE_PER_KB
)
4173 InitWarning(AmountHighWarn("-mintxfee") + " " +
4174 _("This is the minimum transaction fee you pay on every transaction."));
4175 CWallet::minTxFee
= CFeeRate(n
);
4177 if (IsArgSet("-fallbackfee"))
4179 CAmount nFeePerK
= 0;
4180 if (!ParseMoney(GetArg("-fallbackfee", ""), nFeePerK
))
4181 return InitError(strprintf(_("Invalid amount for -fallbackfee=<amount>: '%s'"), GetArg("-fallbackfee", "")));
4182 if (nFeePerK
> HIGH_TX_FEE_PER_KB
)
4183 InitWarning(AmountHighWarn("-fallbackfee") + " " +
4184 _("This is the transaction fee you may pay when fee estimates are not available."));
4185 CWallet::fallbackFee
= CFeeRate(nFeePerK
);
4187 if (IsArgSet("-discardfee"))
4189 CAmount nFeePerK
= 0;
4190 if (!ParseMoney(GetArg("-discardfee", ""), nFeePerK
))
4191 return InitError(strprintf(_("Invalid amount for -discardfee=<amount>: '%s'"), GetArg("-discardfee", "")));
4192 if (nFeePerK
> HIGH_TX_FEE_PER_KB
)
4193 InitWarning(AmountHighWarn("-discardfee") + " " +
4194 _("This is the transaction fee you may discard if change is smaller than dust at this level"));
4195 CWallet::m_discard_rate
= CFeeRate(nFeePerK
);
4197 if (IsArgSet("-paytxfee"))
4199 CAmount nFeePerK
= 0;
4200 if (!ParseMoney(GetArg("-paytxfee", ""), nFeePerK
))
4201 return InitError(AmountErrMsg("paytxfee", GetArg("-paytxfee", "")));
4202 if (nFeePerK
> HIGH_TX_FEE_PER_KB
)
4203 InitWarning(AmountHighWarn("-paytxfee") + " " +
4204 _("This is the transaction fee you will pay if you send a transaction."));
4206 payTxFee
= CFeeRate(nFeePerK
, 1000);
4207 if (payTxFee
< ::minRelayTxFee
)
4209 return InitError(strprintf(_("Invalid amount for -paytxfee=<amount>: '%s' (must be at least %s)"),
4210 GetArg("-paytxfee", ""), ::minRelayTxFee
.ToString()));
4213 if (IsArgSet("-maxtxfee"))
4215 CAmount nMaxFee
= 0;
4216 if (!ParseMoney(GetArg("-maxtxfee", ""), nMaxFee
))
4217 return InitError(AmountErrMsg("maxtxfee", GetArg("-maxtxfee", "")));
4218 if (nMaxFee
> HIGH_MAX_TX_FEE
)
4219 InitWarning(_("-maxtxfee is set very high! Fees this large could be paid on a single transaction."));
4221 if (CFeeRate(maxTxFee
, 1000) < ::minRelayTxFee
)
4223 return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
4224 GetArg("-maxtxfee", ""), ::minRelayTxFee
.ToString()));
4227 nTxConfirmTarget
= GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET
);
4228 bSpendZeroConfChange
= GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE
);
4229 fWalletRbf
= GetBoolArg("-walletrbf", DEFAULT_WALLET_RBF
);
4234 bool CWallet::BackupWallet(const std::string
& strDest
)
4236 return dbw
->Backup(strDest
);
4239 CKeyPool::CKeyPool()
4245 CKeyPool::CKeyPool(const CPubKey
& vchPubKeyIn
, bool internalIn
)
4248 vchPubKey
= vchPubKeyIn
;
4249 fInternal
= internalIn
;
4252 CWalletKey::CWalletKey(int64_t nExpires
)
4254 nTimeCreated
= (nExpires
? GetTime() : 0);
4255 nTimeExpires
= nExpires
;
4258 void CMerkleTx::SetMerkleBranch(const CBlockIndex
* pindex
, int posInBlock
)
4260 // Update the tx's hashBlock
4261 hashBlock
= pindex
->GetBlockHash();
4263 // set the position of the transaction in the block
4264 nIndex
= posInBlock
;
4267 int CMerkleTx::GetDepthInMainChain(const CBlockIndex
* &pindexRet
) const
4272 AssertLockHeld(cs_main
);
4274 // Find the block it claims to be in
4275 BlockMap::iterator mi
= mapBlockIndex
.find(hashBlock
);
4276 if (mi
== mapBlockIndex
.end())
4278 CBlockIndex
* pindex
= (*mi
).second
;
4279 if (!pindex
|| !chainActive
.Contains(pindex
))
4283 return ((nIndex
== -1) ? (-1) : 1) * (chainActive
.Height() - pindex
->nHeight
+ 1);
4286 int CMerkleTx::GetBlocksToMaturity() const
4290 return std::max(0, (COINBASE_MATURITY
+1) - GetDepthInMainChain());
4294 bool CMerkleTx::AcceptToMemoryPool(const CAmount
& nAbsurdFee
, CValidationState
& state
)
4296 return ::AcceptToMemoryPool(mempool
, state
, tx
, true, NULL
, NULL
, false, nAbsurdFee
);