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bitcoin/src/wallet/walletdb.cpp
Andrew Chow d67055e00d Upgrade or rewrite encrypted key checksums 
If fDecryptionThoroughlyChecked is false, after a key has been checked,
write (or rewrite) its checksum. This serves to upgrade wallets
and correct those which have the checksum corrupted but not the key.
2020-01-30 14:44:22 -05:00

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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <wallet/walletdb.h>
#include <fs.h>
#include <key_io.h>
#include <protocol.h>
#include <serialize.h>
#include <sync.h>
#include <util/system.h>
#include <util/time.h>
#include <wallet/wallet.h>
#include <atomic>
#include <string>
#include <boost/thread.hpp>
namespace DBKeys {
const std::string ACENTRY{"acentry"};
const std::string BESTBLOCK_NOMERKLE{"bestblock_nomerkle"};
const std::string BESTBLOCK{"bestblock"};
const std::string CRYPTED_KEY{"ckey"};
const std::string CSCRIPT{"cscript"};
const std::string DEFAULTKEY{"defaultkey"};
const std::string DESTDATA{"destdata"};
const std::string FLAGS{"flags"};
const std::string HDCHAIN{"hdchain"};
const std::string KEYMETA{"keymeta"};
const std::string KEY{"key"};
const std::string MASTER_KEY{"mkey"};
const std::string MINVERSION{"minversion"};
const std::string NAME{"name"};
const std::string OLD_KEY{"wkey"};
const std::string ORDERPOSNEXT{"orderposnext"};
const std::string POOL{"pool"};
const std::string PURPOSE{"purpose"};
const std::string SETTINGS{"settings"};
const std::string TX{"tx"};
const std::string VERSION{"version"};
const std::string WATCHMETA{"watchmeta"};
const std::string WATCHS{"watchs"};
} // namespace DBKeys
//
// WalletBatch
//
bool WalletBatch::WriteName(const std::string& strAddress, const std::string& strName)
{
return WriteIC(std::make_pair(DBKeys::NAME, strAddress), strName);
}
bool WalletBatch::EraseName(const std::string& strAddress)
{
// This should only be used for sending addresses, never for receiving addresses,
// receiving addresses must always have an address book entry if they're not change return.
return EraseIC(std::make_pair(DBKeys::NAME, strAddress));
}
bool WalletBatch::WritePurpose(const std::string& strAddress, const std::string& strPurpose)
{
return WriteIC(std::make_pair(DBKeys::PURPOSE, strAddress), strPurpose);
}
bool WalletBatch::ErasePurpose(const std::string& strAddress)
{
return EraseIC(std::make_pair(DBKeys::PURPOSE, strAddress));
}
bool WalletBatch::WriteTx(const CWalletTx& wtx)
{
return WriteIC(std::make_pair(DBKeys::TX, wtx.GetHash()), wtx);
}
bool WalletBatch::EraseTx(uint256 hash)
{
return EraseIC(std::make_pair(DBKeys::TX, hash));
}
bool WalletBatch::WriteKeyMetadata(const CKeyMetadata& meta, const CPubKey& pubkey, const bool overwrite)
{
return WriteIC(std::make_pair(DBKeys::KEYMETA, pubkey), meta, overwrite);
}
bool WalletBatch::WriteKey(const CPubKey& vchPubKey, const CPrivKey& vchPrivKey, const CKeyMetadata& keyMeta)
{
if (!WriteKeyMetadata(keyMeta, vchPubKey, false)) {
return false;
}
// hash pubkey/privkey to accelerate wallet load
std::vector<unsigned char> vchKey;
vchKey.reserve(vchPubKey.size() + vchPrivKey.size());
vchKey.insert(vchKey.end(), vchPubKey.begin(), vchPubKey.end());
vchKey.insert(vchKey.end(), vchPrivKey.begin(), vchPrivKey.end());
return WriteIC(std::make_pair(DBKeys::KEY, vchPubKey), std::make_pair(vchPrivKey, Hash(vchKey.begin(), vchKey.end())), false);
}
bool WalletBatch::WriteCryptedKey(const CPubKey& vchPubKey,
const std::vector<unsigned char>& vchCryptedSecret,
const CKeyMetadata &keyMeta)
{
if (!WriteKeyMetadata(keyMeta, vchPubKey, true)) {
return false;
}
// Compute a checksum of the encrypted key
uint256 checksum = Hash(vchCryptedSecret.begin(), vchCryptedSecret.end());
const auto key = std::make_pair(DBKeys::CRYPTED_KEY, vchPubKey);
if (!WriteIC(key, std::make_pair(vchCryptedSecret, checksum), false)) {
// It may already exist, so try writing just the checksum
std::vector<unsigned char> val;
if (!m_batch.Read(key, val)) {
return false;
}
if (!WriteIC(key, std::make_pair(val, checksum), true)) {
return false;
}
}
EraseIC(std::make_pair(DBKeys::KEY, vchPubKey));
return true;
}
bool WalletBatch::WriteMasterKey(unsigned int nID, const CMasterKey& kMasterKey)
{
return WriteIC(std::make_pair(DBKeys::MASTER_KEY, nID), kMasterKey, true);
}
bool WalletBatch::WriteCScript(const uint160& hash, const CScript& redeemScript)
{
return WriteIC(std::make_pair(DBKeys::CSCRIPT, hash), redeemScript, false);
}
bool WalletBatch::WriteWatchOnly(const CScript &dest, const CKeyMetadata& keyMeta)
{
if (!WriteIC(std::make_pair(DBKeys::WATCHMETA, dest), keyMeta)) {
return false;
}
return WriteIC(std::make_pair(DBKeys::WATCHS, dest), '1');
}
bool WalletBatch::EraseWatchOnly(const CScript &dest)
{
if (!EraseIC(std::make_pair(DBKeys::WATCHMETA, dest))) {
return false;
}
return EraseIC(std::make_pair(DBKeys::WATCHS, dest));
}
bool WalletBatch::WriteBestBlock(const CBlockLocator& locator)
{
WriteIC(DBKeys::BESTBLOCK, CBlockLocator()); // Write empty block locator so versions that require a merkle branch automatically rescan
return WriteIC(DBKeys::BESTBLOCK_NOMERKLE, locator);
}
bool WalletBatch::ReadBestBlock(CBlockLocator& locator)
{
if (m_batch.Read(DBKeys::BESTBLOCK, locator) && !locator.vHave.empty()) return true;
return m_batch.Read(DBKeys::BESTBLOCK_NOMERKLE, locator);
}
bool WalletBatch::WriteOrderPosNext(int64_t nOrderPosNext)
{
return WriteIC(DBKeys::ORDERPOSNEXT, nOrderPosNext);
}
bool WalletBatch::ReadPool(int64_t nPool, CKeyPool& keypool)
{
return m_batch.Read(std::make_pair(DBKeys::POOL, nPool), keypool);
}
bool WalletBatch::WritePool(int64_t nPool, const CKeyPool& keypool)
{
return WriteIC(std::make_pair(DBKeys::POOL, nPool), keypool);
}
bool WalletBatch::ErasePool(int64_t nPool)
{
return EraseIC(std::make_pair(DBKeys::POOL, nPool));
}
bool WalletBatch::WriteMinVersion(int nVersion)
{
return WriteIC(DBKeys::MINVERSION, nVersion);
}
class CWalletScanState {
public:
unsigned int nKeys{0};
unsigned int nCKeys{0};
unsigned int nWatchKeys{0};
unsigned int nKeyMeta{0};
unsigned int m_unknown_records{0};
bool fIsEncrypted{false};
bool fAnyUnordered{false};
std::vector<uint256> vWalletUpgrade;
CWalletScanState() {
}
};
static bool
ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
CWalletScanState &wss, std::string& strType, std::string& strErr) EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)
{
try {
// Unserialize
// Taking advantage of the fact that pair serialization
// is just the two items serialized one after the other
ssKey >> strType;
if (strType == DBKeys::NAME) {
std::string strAddress;
ssKey >> strAddress;
ssValue >> pwallet->mapAddressBook[DecodeDestination(strAddress)].name;
} else if (strType == DBKeys::PURPOSE) {
std::string strAddress;
ssKey >> strAddress;
ssValue >> pwallet->mapAddressBook[DecodeDestination(strAddress)].purpose;
} else if (strType == DBKeys::TX) {
uint256 hash;
ssKey >> hash;
CWalletTx wtx(nullptr /* pwallet */, MakeTransactionRef());
ssValue >> wtx;
if (wtx.GetHash() != hash)
return false;
// Undo serialize changes in 31600
if (31404 <= wtx.fTimeReceivedIsTxTime && wtx.fTimeReceivedIsTxTime <= 31703)
{
if (!ssValue.empty())
{
char fTmp;
char fUnused;
std::string unused_string;
ssValue >> fTmp >> fUnused >> unused_string;
strErr = strprintf("LoadWallet() upgrading tx ver=%d %d %s",
wtx.fTimeReceivedIsTxTime, fTmp, hash.ToString());
wtx.fTimeReceivedIsTxTime = fTmp;
}
else
{
strErr = strprintf("LoadWallet() repairing tx ver=%d %s", wtx.fTimeReceivedIsTxTime, hash.ToString());
wtx.fTimeReceivedIsTxTime = 0;
}
wss.vWalletUpgrade.push_back(hash);
}
if (wtx.nOrderPos == -1)
wss.fAnyUnordered = true;
pwallet->LoadToWallet(wtx);
} else if (strType == DBKeys::WATCHS) {
wss.nWatchKeys++;
CScript script;
ssKey >> script;
char fYes;
ssValue >> fYes;
if (fYes == '1') {
pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadWatchOnly(script);
}
} else if (strType == DBKeys::KEY) {
CPubKey vchPubKey;
ssKey >> vchPubKey;
if (!vchPubKey.IsValid())
{
strErr = "Error reading wallet database: CPubKey corrupt";
return false;
}
CKey key;
CPrivKey pkey;
uint256 hash;
wss.nKeys++;
ssValue >> pkey;
// Old wallets store keys as DBKeys::KEY [pubkey] => [privkey]
// ... which was slow for wallets with lots of keys, because the public key is re-derived from the private key
// using EC operations as a checksum.
// Newer wallets store keys as DBKeys::KEY [pubkey] => [privkey][hash(pubkey,privkey)], which is much faster while
// remaining backwards-compatible.
try
{
ssValue >> hash;
}
catch (...) {}
bool fSkipCheck = false;
if (!hash.IsNull())
{
// hash pubkey/privkey to accelerate wallet load
std::vector<unsigned char> vchKey;
vchKey.reserve(vchPubKey.size() + pkey.size());
vchKey.insert(vchKey.end(), vchPubKey.begin(), vchPubKey.end());
vchKey.insert(vchKey.end(), pkey.begin(), pkey.end());
if (Hash(vchKey.begin(), vchKey.end()) != hash)
{
strErr = "Error reading wallet database: CPubKey/CPrivKey corrupt";
return false;
}
fSkipCheck = true;
}
if (!key.Load(pkey, vchPubKey, fSkipCheck))
{
strErr = "Error reading wallet database: CPrivKey corrupt";
return false;
}
if (!pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadKey(key, vchPubKey))
{
strErr = "Error reading wallet database: LegacyScriptPubKeyMan::LoadKey failed";
return false;
}
} else if (strType == DBKeys::MASTER_KEY) {
// Master encryption key is loaded into only the wallet and not any of the ScriptPubKeyMans.
unsigned int nID;
ssKey >> nID;
CMasterKey kMasterKey;
ssValue >> kMasterKey;
if(pwallet->mapMasterKeys.count(nID) != 0)
{
strErr = strprintf("Error reading wallet database: duplicate CMasterKey id %u", nID);
return false;
}
pwallet->mapMasterKeys[nID] = kMasterKey;
if (pwallet->nMasterKeyMaxID < nID)
pwallet->nMasterKeyMaxID = nID;
} else if (strType == DBKeys::CRYPTED_KEY) {
CPubKey vchPubKey;
ssKey >> vchPubKey;
if (!vchPubKey.IsValid())
{
strErr = "Error reading wallet database: CPubKey corrupt";
return false;
}
std::vector<unsigned char> vchPrivKey;
ssValue >> vchPrivKey;
// Get the checksum and check it
bool checksum_valid = false;
if (!ssValue.eof()) {
uint256 checksum;
ssValue >> checksum;
if ((checksum_valid = Hash(vchPrivKey.begin(), vchPrivKey.end()) != checksum)) {
strErr = "Error reading wallet database: Crypted key corrupt";
return false;
}
}
wss.nCKeys++;
if (!pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadCryptedKey(vchPubKey, vchPrivKey, checksum_valid))
{
strErr = "Error reading wallet database: LegacyScriptPubKeyMan::LoadCryptedKey failed";
return false;
}
wss.fIsEncrypted = true;
} else if (strType == DBKeys::KEYMETA) {
CPubKey vchPubKey;
ssKey >> vchPubKey;
CKeyMetadata keyMeta;
ssValue >> keyMeta;
wss.nKeyMeta++;
pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadKeyMetadata(vchPubKey.GetID(), keyMeta);
} else if (strType == DBKeys::WATCHMETA) {
CScript script;
ssKey >> script;
CKeyMetadata keyMeta;
ssValue >> keyMeta;
wss.nKeyMeta++;
pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadScriptMetadata(CScriptID(script), keyMeta);
} else if (strType == DBKeys::DEFAULTKEY) {
// We don't want or need the default key, but if there is one set,
// we want to make sure that it is valid so that we can detect corruption
CPubKey vchPubKey;
ssValue >> vchPubKey;
if (!vchPubKey.IsValid()) {
strErr = "Error reading wallet database: Default Key corrupt";
return false;
}
} else if (strType == DBKeys::POOL) {
int64_t nIndex;
ssKey >> nIndex;
CKeyPool keypool;
ssValue >> keypool;
pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadKeyPool(nIndex, keypool);
} else if (strType == DBKeys::CSCRIPT) {
uint160 hash;
ssKey >> hash;
CScript script;
ssValue >> script;
if (!pwallet->GetOrCreateLegacyScriptPubKeyMan()->LoadCScript(script))
{
strErr = "Error reading wallet database: LegacyScriptPubKeyMan::LoadCScript failed";
return false;
}
} else if (strType == DBKeys::ORDERPOSNEXT) {
ssValue >> pwallet->nOrderPosNext;
} else if (strType == DBKeys::DESTDATA) {
std::string strAddress, strKey, strValue;
ssKey >> strAddress;
ssKey >> strKey;
ssValue >> strValue;
pwallet->LoadDestData(DecodeDestination(strAddress), strKey, strValue);
} else if (strType == DBKeys::HDCHAIN) {
CHDChain chain;
ssValue >> chain;
pwallet->GetOrCreateLegacyScriptPubKeyMan()->SetHDChain(chain, true);
} else if (strType == DBKeys::FLAGS) {
uint64_t flags;
ssValue >> flags;
if (!pwallet->SetWalletFlags(flags, true)) {
strErr = "Error reading wallet database: Unknown non-tolerable wallet flags found";
return false;
}
} else if (strType == DBKeys::OLD_KEY) {
strErr = "Found unsupported 'wkey' record, try loading with version 0.18";
return false;
} else if (strType != DBKeys::BESTBLOCK && strType != DBKeys::BESTBLOCK_NOMERKLE &&
strType != DBKeys::MINVERSION && strType != DBKeys::ACENTRY &&
strType != DBKeys::VERSION && strType != DBKeys::SETTINGS) {
wss.m_unknown_records++;
}
} catch (const std::exception& e) {
if (strErr.empty()) {
strErr = e.what();
}
return false;
} catch (...) {
if (strErr.empty()) {
strErr = "Caught unknown exception in ReadKeyValue";
}
return false;
}
return true;
}
bool WalletBatch::IsKeyType(const std::string& strType)
{
return (strType == DBKeys::KEY ||
strType == DBKeys::MASTER_KEY || strType == DBKeys::CRYPTED_KEY);
}
DBErrors WalletBatch::LoadWallet(CWallet* pwallet)
{
CWalletScanState wss;
bool fNoncriticalErrors = false;
DBErrors result = DBErrors::LOAD_OK;
LOCK(pwallet->cs_wallet);
try {
int nMinVersion = 0;
if (m_batch.Read(DBKeys::MINVERSION, nMinVersion)) {
if (nMinVersion > FEATURE_LATEST)
return DBErrors::TOO_NEW;
pwallet->LoadMinVersion(nMinVersion);
}
// Get cursor
Dbc* pcursor = m_batch.GetCursor();
if (!pcursor)
{
pwallet->WalletLogPrintf("Error getting wallet database cursor\n");
return DBErrors::CORRUPT;
}
while (true)
{
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = m_batch.ReadAtCursor(pcursor, ssKey, ssValue);
if (ret == DB_NOTFOUND)
break;
else if (ret != 0)
{
pwallet->WalletLogPrintf("Error reading next record from wallet database\n");
return DBErrors::CORRUPT;
}
// Try to be tolerant of single corrupt records:
std::string strType, strErr;
if (!ReadKeyValue(pwallet, ssKey, ssValue, wss, strType, strErr))
{
// losing keys is considered a catastrophic error, anything else
// we assume the user can live with:
if (IsKeyType(strType) || strType == DBKeys::DEFAULTKEY) {
result = DBErrors::CORRUPT;
} else if (strType == DBKeys::FLAGS) {
// reading the wallet flags can only fail if unknown flags are present
result = DBErrors::TOO_NEW;
} else {
// Leave other errors alone, if we try to fix them we might make things worse.
fNoncriticalErrors = true; // ... but do warn the user there is something wrong.
if (strType == DBKeys::TX)
// Rescan if there is a bad transaction record:
gArgs.SoftSetBoolArg("-rescan", true);
}
}
if (!strErr.empty())
pwallet->WalletLogPrintf("%s\n", strErr);
}
pcursor->close();
}
catch (const boost::thread_interrupted&) {
throw;
}
catch (...) {
result = DBErrors::CORRUPT;
}
if (fNoncriticalErrors && result == DBErrors::LOAD_OK)
result = DBErrors::NONCRITICAL_ERROR;
// Any wallet corruption at all: skip any rewriting or
// upgrading, we don't want to make it worse.
if (result != DBErrors::LOAD_OK)
return result;
// Last client version to open this wallet, was previously the file version number
int last_client = CLIENT_VERSION;
m_batch.Read(DBKeys::VERSION, last_client);
int wallet_version = pwallet->GetVersion();
pwallet->WalletLogPrintf("Wallet File Version = %d\n", wallet_version > 0 ? wallet_version : last_client);
pwallet->WalletLogPrintf("Keys: %u plaintext, %u encrypted, %u w/ metadata, %u total. Unknown wallet records: %u\n",
wss.nKeys, wss.nCKeys, wss.nKeyMeta, wss.nKeys + wss.nCKeys, wss.m_unknown_records);
// nTimeFirstKey is only reliable if all keys have metadata
if ((wss.nKeys + wss.nCKeys + wss.nWatchKeys) != wss.nKeyMeta) {
auto spk_man = pwallet->GetOrCreateLegacyScriptPubKeyMan();
if (spk_man) {
LOCK(spk_man->cs_KeyStore);
spk_man->UpdateTimeFirstKey(1);
}
}
for (const uint256& hash : wss.vWalletUpgrade)
WriteTx(pwallet->mapWallet.at(hash));
// Rewrite encrypted wallets of versions 0.4.0 and 0.5.0rc:
if (wss.fIsEncrypted && (last_client == 40000 || last_client == 50000))
return DBErrors::NEED_REWRITE;
if (last_client < CLIENT_VERSION) // Update
m_batch.Write(DBKeys::VERSION, CLIENT_VERSION);
if (wss.fAnyUnordered)
result = pwallet->ReorderTransactions();
// Upgrade all of the wallet keymetadata to have the hd master key id
// This operation is not atomic, but if it fails, updated entries are still backwards compatible with older software
try {
pwallet->UpgradeKeyMetadata();
} catch (...) {
result = DBErrors::CORRUPT;
}
return result;
}
DBErrors WalletBatch::FindWalletTx(std::vector<uint256>& vTxHash, std::vector<CWalletTx>& vWtx)
{
DBErrors result = DBErrors::LOAD_OK;
try {
int nMinVersion = 0;
if (m_batch.Read(DBKeys::MINVERSION, nMinVersion)) {
if (nMinVersion > FEATURE_LATEST)
return DBErrors::TOO_NEW;
}
// Get cursor
Dbc* pcursor = m_batch.GetCursor();
if (!pcursor)
{
LogPrintf("Error getting wallet database cursor\n");
return DBErrors::CORRUPT;
}
while (true)
{
// Read next record
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
int ret = m_batch.ReadAtCursor(pcursor, ssKey, ssValue);
if (ret == DB_NOTFOUND)
break;
else if (ret != 0)
{
LogPrintf("Error reading next record from wallet database\n");
return DBErrors::CORRUPT;
}
std::string strType;
ssKey >> strType;
if (strType == DBKeys::TX) {
uint256 hash;
ssKey >> hash;
CWalletTx wtx(nullptr /* pwallet */, MakeTransactionRef());
ssValue >> wtx;
vTxHash.push_back(hash);
vWtx.push_back(wtx);
}
}
pcursor->close();
}
catch (const boost::thread_interrupted&) {
throw;
}
catch (...) {
result = DBErrors::CORRUPT;
}
return result;
}
DBErrors WalletBatch::ZapSelectTx(std::vector<uint256>& vTxHashIn, std::vector<uint256>& vTxHashOut)
{
// build list of wallet TXs and hashes
std::vector<uint256> vTxHash;
std::vector<CWalletTx> vWtx;
DBErrors err = FindWalletTx(vTxHash, vWtx);
if (err != DBErrors::LOAD_OK) {
return err;
}
std::sort(vTxHash.begin(), vTxHash.end());
std::sort(vTxHashIn.begin(), vTxHashIn.end());
// erase each matching wallet TX
bool delerror = false;
std::vector<uint256>::iterator it = vTxHashIn.begin();
for (const uint256& hash : vTxHash) {
while (it < vTxHashIn.end() && (*it) < hash) {
it++;
}
if (it == vTxHashIn.end()) {
break;
}
else if ((*it) == hash) {
if(!EraseTx(hash)) {
LogPrint(BCLog::WALLETDB, "Transaction was found for deletion but returned database error: %s\n", hash.GetHex());
delerror = true;
}
vTxHashOut.push_back(hash);
}
}
if (delerror) {
return DBErrors::CORRUPT;
}
return DBErrors::LOAD_OK;
}
DBErrors WalletBatch::ZapWalletTx(std::vector<CWalletTx>& vWtx)
{
// build list of wallet TXs
std::vector<uint256> vTxHash;
DBErrors err = FindWalletTx(vTxHash, vWtx);
if (err != DBErrors::LOAD_OK)
return err;
// erase each wallet TX
for (const uint256& hash : vTxHash) {
if (!EraseTx(hash))
return DBErrors::CORRUPT;
}
return DBErrors::LOAD_OK;
}
void MaybeCompactWalletDB()
{
static std::atomic<bool> fOneThread(false);
if (fOneThread.exchange(true)) {
return;
}
if (!gArgs.GetBoolArg("-flushwallet", DEFAULT_FLUSHWALLET)) {
return;
}
for (const std::shared_ptr<CWallet>& pwallet : GetWallets()) {
WalletDatabase& dbh = pwallet->GetDBHandle();
unsigned int nUpdateCounter = dbh.nUpdateCounter;
if (dbh.nLastSeen != nUpdateCounter) {
dbh.nLastSeen = nUpdateCounter;
dbh.nLastWalletUpdate = GetTime();
}
if (dbh.nLastFlushed != nUpdateCounter && GetTime() - dbh.nLastWalletUpdate >= 2) {
if (BerkeleyBatch::PeriodicFlush(dbh)) {
dbh.nLastFlushed = nUpdateCounter;
}
}
}
fOneThread = false;
}
//
// Try to (very carefully!) recover wallet file if there is a problem.
//
bool WalletBatch::Recover(const fs::path& wallet_path, void *callbackDataIn, bool (*recoverKVcallback)(void* callbackData, CDataStream ssKey, CDataStream ssValue), std::string& out_backup_filename)
{
return BerkeleyBatch::Recover(wallet_path, callbackDataIn, recoverKVcallback, out_backup_filename);
}
bool WalletBatch::Recover(const fs::path& wallet_path, std::string& out_backup_filename)
{
// recover without a key filter callback
// results in recovering all record types
return WalletBatch::Recover(wallet_path, nullptr, nullptr, out_backup_filename);
}
bool WalletBatch::RecoverKeysOnlyFilter(void *callbackData, CDataStream ssKey, CDataStream ssValue)
{
CWallet *dummyWallet = reinterpret_cast<CWallet*>(callbackData);
CWalletScanState dummyWss;
std::string strType, strErr;
bool fReadOK;
{
// Required in LoadKeyMetadata():
LOCK(dummyWallet->cs_wallet);
fReadOK = ReadKeyValue(dummyWallet, ssKey, ssValue,
dummyWss, strType, strErr);
}
if (!IsKeyType(strType) && strType != DBKeys::HDCHAIN) {
return false;
}
if (!fReadOK)
{
LogPrintf("WARNING: WalletBatch::Recover skipping %s: %s\n", strType, strErr);
return false;
}
return true;
}
bool WalletBatch::VerifyEnvironment(const fs::path& wallet_path, std::string& errorStr)
{
return BerkeleyBatch::VerifyEnvironment(wallet_path, errorStr);
}
bool WalletBatch::VerifyDatabaseFile(const fs::path& wallet_path, std::vector<std::string>& warnings, std::string& errorStr)
{
return BerkeleyBatch::VerifyDatabaseFile(wallet_path, warnings, errorStr, WalletBatch::Recover);
}
bool WalletBatch::WriteDestData(const std::string &address, const std::string &key, const std::string &value)
{
return WriteIC(std::make_pair(DBKeys::DESTDATA, std::make_pair(address, key)), value);
}
bool WalletBatch::EraseDestData(const std::string &address, const std::string &key)
{
return EraseIC(std::make_pair(DBKeys::DESTDATA, std::make_pair(address, key)));
}
bool WalletBatch::WriteHDChain(const CHDChain& chain)
{
return WriteIC(DBKeys::HDCHAIN, chain);
}
bool WalletBatch::WriteWalletFlags(const uint64_t flags)
{
return WriteIC(DBKeys::FLAGS, flags);
}
bool WalletBatch::TxnBegin()
{
return m_batch.TxnBegin();
}
bool WalletBatch::TxnCommit()
{
return m_batch.TxnCommit();
}
bool WalletBatch::TxnAbort()
{
return m_batch.TxnAbort();
}
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