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hdwallet.cpp
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// Copyright (c) 2017-2022 The Particl Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <wallet/hdwallet.h>
#include <crypto/hmac_sha256.h>
#include <crypto/hmac_sha512.h>
#include <crypto/sha256.h>
#include <random.h>
#include <validation.h>
#include <consensus/validation.h>
#include <consensus/merkle.h>
#include <smsg/smessage.h>
#include <smsg/crypter.h>
#include <timedata.h>
#include <miner.h>
#include <pos/kernel.h>
#include <pos/miner.h>
#include <util/moneystr.h>
#include <util/translation.h>
#include <script/script.h>
#include <script/standard.h>
#include <script/sign.h>
#include <policy/fees.h>
#include <policy/policy.h>
#include <wallet/coincontrol.h>
#include <blind.h>
#include <anon.h>
#include <txdb.h>
#include <pow.h>
#include <txmempool.h>
#include <rpc/util.h>
#include <util/fees.h>
#include <util/rbf.h>
#include <wallet/fees.h>
#include <node/ui_interface.h>
#include <pos/diffalgo.h>
#if ENABLE_USBDEVICE
#include <usbdevice/usbdevice.h>
#endif
#include <univalue.h>
#include <secp256k1_mlsag.h>
#include <algorithm>
#include <thread>
#include <boost/algorithm/string/replace.hpp>
using interfaces::FoundBlock;
extern const std::string MESSAGE_MAGIC;
static uint8_t GetOutputType(const COutPoint &prevout)
{
LOCK(cs_main);
Coin coin;
if (::ChainstateActive().CoinsTip().GetCoin(prevout, coin)) {
return coin.nType;
}
uint256 hash_block;
const CTransactionRef tx = ::GetTransaction(nullptr, nullptr, prevout.hash, Params().GetConsensus(), hash_block);
if (tx) {
if (tx->vpout.size() > prevout.n) {
return tx->vpout[prevout.n]->GetType();
}
}
return 0;
}
static bool ExtractStealthPrefix(const std::vector<uint8_t> &vData, uint32_t &prefix, size_t offset = 33)
{
prefix = 0;
if (vData.size() >= offset + 5 // Have prefix
&& vData[offset] == DO_STEALTH_PREFIX) {
memcpy(&prefix, &vData[offset + 1], 4);
prefix = le32toh(prefix);
return true;
}
return false;
}
static void AppendKey(const CHDWallet *pw, CKey &key, uint32_t nChild, UniValue &derivedKeys) EXCLUSIVE_LOCKS_REQUIRED(pw->cs_wallet)
{
UniValue keyobj(UniValue::VOBJ);
CKeyID idk = key.GetPubKey().GetID();
bool fHardened = IsHardened(nChild);
ClearHardenedBit(nChild);
keyobj.pushKV("path", ToString((int64_t)nChild) + (fHardened ? "'" : ""));
keyobj.pushKV("address", EncodeDestination(PKHash(idk)));
keyobj.pushKV("privkey", CBitcoinSecret(key).ToString());
std::map<CTxDestination, CAddressBookData>::const_iterator mi = pw->m_address_book.find(PKHash(idk));
if (mi != pw->m_address_book.end()) {
// TODO: confirm vPath?
keyobj.pushKV("label", mi->second.GetLabel());
if (!mi->second.purpose.empty()) {
keyobj.pushKV("purpose", mi->second.purpose);
}
UniValue objDestData(UniValue::VOBJ);
for (const auto &pair : mi->second.destdata) {
objDestData.pushKV(pair.first, pair.second);
}
if (objDestData.size() > 0) {
keyobj.pushKV("destdata", objDestData);
}
}
derivedKeys.push_back(keyobj);
return;
};
static bool HaveAnonOutputs(std::vector<CTempRecipient> &vecSend)
{
for (const auto &r : vecSend)
if (r.nType == OUTPUT_RINGCT) {
return true;
}
return false;
}
int CHDWallet::Finalise()
{
LOCK(cs_wallet);
LogPrint(BCLog::HDWALLET, "%s %s\n", GetDisplayName(), __func__);
FreeExtKeyMaps();
m_address_book.clear();
if (m_blind_scratch) {
secp256k1_scratch_space_destroy(secp256k1_ctx_blind, m_blind_scratch);
m_blind_scratch = nullptr;
}
return 0;
};
int CHDWallet::FreeExtKeyMaps()
{
LogPrint(BCLog::HDWALLET, "%s %s\n", GetDisplayName(), __func__);
for (auto it = mapExtAccounts.begin(); it != mapExtAccounts.end(); ++it) {
if (it->second) {
delete it->second;
}
}
mapExtAccounts.clear();
for (auto itl = mapExtKeys.begin(); itl != mapExtKeys.end(); ++itl) {
if (itl->second) {
delete itl->second;
}
}
mapExtKeys.clear();
mapLooseKeys.clear();
mapLooseLookAhead.clear();
return 0;
};
void CHDWallet::AddOptions(ArgsManager& argsman)
{
argsman.AddArg("-defaultlookaheadsize=<n>", strprintf("Number of keys to load into the lookahead pool per chain. (default: %u)", DEFAULT_LOOKAHEAD_SIZE), ArgsManager::ALLOW_ANY, OptionsCategory::PART_WALLET);
argsman.AddArg("-stealthv1lookaheadsize=<n>", strprintf("Number of V1 stealth keys to look ahead during a rescan. (default: %u)", DEFAULT_STEALTH_LOOKAHEAD_SIZE), ArgsManager::ALLOW_ANY, OptionsCategory::PART_WALLET);
argsman.AddArg("-stealthv2lookaheadsize=<n>", strprintf("Number of V2 stealth keys to look ahead during a rescan. (default: %u)", DEFAULT_STEALTH_LOOKAHEAD_SIZE), ArgsManager::ALLOW_ANY, OptionsCategory::PART_WALLET);
argsman.AddArg("-extkeysaveancestors", strprintf("On saving a key from the lookahead pool, save all unsaved keys leading up to it too. (default: %s)", "true"), ArgsManager::ALLOW_ANY, OptionsCategory::PART_WALLET);
argsman.AddArg("-createdefaultmasterkey", strprintf("Generate a random master key and main account if no master key exists. (default: %s)", "false"), ArgsManager::ALLOW_ANY, OptionsCategory::PART_WALLET);
argsman.AddArg("-staking", "Stake your coins to support network and gain reward (default: true)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-stakingthreads", "Number of threads to start for staking, max 1 per active wallet, will divide wallets evenly between threads (default: 1)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-stakethreadconddelayms", "Number of milliseconds to delay staking for on error condition (default: 60000)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-minstakeinterval=<n>", "Minimum time in seconds between successful stakes (default: 0)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-minersleep=<n>", "Milliseconds between stake attempts. Lowering this param will not result in more stakes. (default: 500)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-reservebalance=<amount>", "Ensure available balance remains above reservebalance. (default: 0)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
argsman.AddArg("-treasurydonationpercent=<n>", "Percentage of block reward donated to the treasury fund, overridden by system minimum. (default: 0)", ArgsManager::ALLOW_ANY, OptionsCategory::PART_STAKING);
return;
};
bool CHDWallet::ShouldRescan()
{
return mapExtAccounts.size() > 0 || CountKeys() > 0;
};
static void AppendError(std::string &sError, std::string s)
{
if (!sError.empty()) {
sError += "\n";
}
sError += s;
};
bool CHDWallet::ProcessStakingSettings(std::string &sError)
{
LogPrint(BCLog::HDWALLET, "%s ProcessStakingSettings\n", GetDisplayName());
// Set defaults
fStakingEnabled = true;
nStakeCombineThreshold = 1000 * COIN;
nStakeSplitThreshold = 2000 * COIN;
m_min_stakeable_value = 1;
nMaxStakeCombine = 3;
nWalletTreasuryFundCedePercent = gArgs.GetArg("-treasurydonationpercent", 0);
m_reward_address = CNoDestination();
m_smsg_fee_rate_target = 0;
m_smsg_difficulty_target = 0;
UniValue json;
if (GetSetting("stakingoptions", json)) {
if (!json["enabled"].isNull()) {
try { fStakingEnabled = GetBool(json["enabled"]);
} catch (std::exception &e) {
AppendError(sError, "Setting \"enabled\" failed.");
}
}
if (!json["stakecombinethreshold"].isNull()) {
try { nStakeCombineThreshold = AmountFromValue(json["stakecombinethreshold"]);
} catch (std::exception &e) {
AppendError(sError, "\"stakecombinethreshold\" not an amount.");
}
}
if (!json["stakesplitthreshold"].isNull()) {
try { nStakeSplitThreshold = AmountFromValue(json["stakesplitthreshold"]);
} catch (std::exception &e) {
AppendError(sError, "\"stakesplitthreshold\" not an amount.");
}
}
if (!json["minstakeablevalue"].isNull()) {
try { m_min_stakeable_value = AmountFromValue(json["minstakeablevalue"]);
} catch (std::exception &e) {
AppendError(sError, "\"minstakeablevalue\" not an amount.");
}
if (m_min_stakeable_value < 0) {
AppendError(sError, "\"minstakeablevalue\" must be >= 0.");
m_min_stakeable_value = 0;
}
}
if (!json["treasurydonationpercent"].isNull()) {
try { nWalletTreasuryFundCedePercent = json["treasurydonationpercent"].get_int();
} catch (std::exception &e) {
AppendError(sError, "\"treasurydonationpercent\" not an integer.");
}
}
if (!json["rewardaddress"].isNull()) {
try { m_reward_address = DecodeDestination(json["rewardaddress"].get_str());
} catch (std::exception &e) {
AppendError(sError, "Setting \"rewardaddress\" failed.");
}
}
if (!json["smsgfeeratetarget"].isNull()) {
try { m_smsg_fee_rate_target = AmountFromValue(json["smsgfeeratetarget"]);
} catch (std::exception &e) {
AppendError(sError, "\"smsgfeeratetarget\" not an amount.");
}
}
if (!json["smsgdifficultytarget"].isNull()) {
try {
std::string s = json["smsgdifficultytarget"].get_str();
if (!IsHex(s) || !(s.size() == 64)) {
throw JSONRPCError(RPC_INVALID_PARAMETER, "Must be 32 bytes and hex encoded.");
}
arith_uint256 target;
target.SetHex(s);
m_smsg_difficulty_target = target.GetCompact();
} catch (std::exception &e) {
AppendError(sError, "\"smsgdifficultytarget\" not valid.");
}
}
}
if (nStakeCombineThreshold < 100 * COIN || nStakeCombineThreshold > 5000 * COIN) {
AppendError(sError, "\"stakecombinethreshold\" must be >= 100 and <= 5000.");
nStakeCombineThreshold = 1000 * COIN;
}
if (nStakeSplitThreshold < nStakeCombineThreshold * 2 || nStakeSplitThreshold > 10000 * COIN) {
AppendError(sError, "\"stakesplitthreshold\" must be >= 2x \"stakecombinethreshold\" and <= 10000.");
nStakeSplitThreshold = nStakeCombineThreshold * 2;
}
if (nWalletTreasuryFundCedePercent < 0) {
WalletLogPrintf("%s: Warning \"treasurydonationpercent\" out of range %d, clamped to %d\n", __func__, nWalletTreasuryFundCedePercent, 0);
nWalletTreasuryFundCedePercent = 0;
} else
if (nWalletTreasuryFundCedePercent > 100) {
WalletLogPrintf("%s: \"Warning treasurydonationpercent\" out of range %d, clamped to %d\n", __func__, nWalletTreasuryFundCedePercent, 100);
nWalletTreasuryFundCedePercent = 100;
}
return true;
};
bool CHDWallet::ProcessWalletSettings(std::string &sError)
{
LogPrint(BCLog::HDWALLET, "%s ProcessWalletSettings\n", GetDisplayName());
// Set defaults
m_collapse_spent_mode = 0;
m_min_collapse_depth = 3;
m_mixin_selection_mode_default = MIXIN_SEL_RECENT;
m_min_owned_value = 0;
UniValue json;
if (GetSetting("unloadspent", json)) {
if (!json["mode"].isNull()) {
try { m_collapse_spent_mode = json["mode"].get_int();
} catch (std::exception &e) {
AppendError(sError, "\"mode\" not integer.");
}
}
if (!json["mindepth"].isNull()) {
try { m_min_collapse_depth = json["mindepth"].get_int();
} catch (std::exception &e) {
AppendError(sError, "\"mode\" not integer.");
}
}
}
if (GetSetting("anonoptions", json)) {
if (!json["mixinselection"].isNull()) {
try { m_mixin_selection_mode_default = json["mixinselection"].get_int();
} catch (std::exception &e) {
AppendError(sError, "\"mixinselection\" not integer.");
}
}
}
if (GetSetting("other", json)) {
if (!json["onlyinstance"].isNull()) {
try { m_is_only_instance = json["onlyinstance"].get_bool();
} catch (std::exception &e) {
AppendError(sError, "\"onlyinstance\" not boolean.");
}
}
if (!json["smsgenabled"].isNull()) {
try { m_smsg_enabled = json["smsgenabled"].get_bool();
} catch (std::exception &e) {
AppendError(sError, "\"smsgenabled\" not boolean.");
}
}
if (!json["minownedvalue"].isNull()) {
try { m_min_owned_value = AmountFromValue(json["minownedvalue"]);
} catch (std::exception &e) {
AppendError(sError, "\"minownedvalue\" not an amount.");
}
if (m_min_owned_value < 0) {
AppendError(sError, "\"minownedvalue\" must be >= 0.");
m_min_owned_value = 0;
}
}
}
if (m_min_collapse_depth < 2) {
AppendError(sError, "\"mindepth\" must be >= 2.");
m_min_collapse_depth = 2;
}
return true;
};
bool CHDWallet::IsHDEnabled() const
{
return mapExtAccounts.find(idDefaultAccount) != mapExtAccounts.end();
}
bool CHDWallet::CanGetAddresses(bool internal) const
{
if (!idDefaultAccount.IsNull()) {
return true;
}
if (CWallet::CanGetAddresses(internal)) {
return true;
}
if (IsHardwareLinkedWallet()) {
return true;
}
return false;
}
bool CHDWallet::IsHardwareLinkedWallet() const
{
LOCK(cs_wallet);
ExtKeyAccountMap::const_iterator mi = mapExtAccounts.find(idDefaultAccount);
if (mi == mapExtAccounts.end()) {
return false;
}
const CExtKeyAccount *pa = mi->second;
if (pa->nFlags & EAF_HAVE_SECRET) {
return false;
}
mapEKValue_t::const_iterator mvi = pa->mapValue.find(EKVT_HARDWARE_DEVICE);
if (mvi != pa->mapValue.end()) {
return true;
}
return false;
}
bool CHDWallet::UnsetWalletFlagRV(CHDWalletDB *pwdb, uint64_t flag)
{
LOCK(cs_wallet);
if (!IsWalletFlagSet(flag)) {
return true;
}
m_wallet_flags &= ~flag;
return pwdb->WriteWalletFlags(m_wallet_flags);
}
extern int ListLooseExtKeys(CHDWallet *pwallet, int nShowKeys, UniValue &ret, size_t &nKeys);
extern int ListAccountExtKeys(CHDWallet *pwallet, int nShowKeys, UniValue &ret, size_t &nKeys);
extern int ListLooseStealthAddresses(UniValue &arr, const CHDWallet *pwallet, bool fShowSecrets, bool fAddressBookInfo, bool show_pubkeys=false, bool bech32=false);
bool CHDWallet::DumpJson(UniValue &rv, std::string &sError)
{
WalletLogPrintf("Dumping wallet to JSON.\n");
if (IsLocked()) {
return wserrorN(false, sError, __func__, "Wallet must be unlocked.");
}
LOCK(cs_wallet);
CHDWalletDB wdb(*database);
size_t nKeys, nAcc;
UniValue extkeys(UniValue::VARR);
UniValue extaccs(UniValue::VARR);
ListLooseExtKeys(this, 2, extkeys, nKeys);
ListAccountExtKeys(this, 3, extaccs, nAcc);
CExtKey58 eKey58;
for (size_t k = 0; k < extaccs.size(); ++k) {
UniValue &acc = extaccs.get(k);
size_t nChains = acc["chains"].size();
std::vector<CExtKeyPair> vChains;
vChains.resize(nChains);
for (size_t c = 0; c < nChains; ++c) {
UniValue &chain = acc.get("chains").get(c);
const std::string &sEvkey = chain["evkey"].get_str();
uint32_t nDerives = 0;
uint32_t nDerivesH = 0;
if (chain["num_derives"].isStr()
&& !ParseUInt32(chain["num_derives"].get_str(), &nDerives)) {
return wserrorN(false, sError, __func__, "num_derives to int failed.");
}
if (chain["num_derives_h"].isStr()
&& !ParseUInt32(chain["num_derives_h"].get_str(), &nDerivesH)) {
return wserrorN(false, sError, __func__, "num_derives_h to int failed.");
}
eKey58.Set58(sEvkey.c_str());
CExtKeyPair kp = eKey58.GetKey();
vChains[c] = kp;
bool fIsStealth = false;
if (chain["use_type"].isStr() && chain["use_type"].get_str() == "stealth") {
fIsStealth = true;
}
UniValue derivedKeys(UniValue::VARR);
UniValue derivedKeysH(UniValue::VARR);
if (fIsStealth) {
// Dump from pack instead
} else {
CKey key;
uint32_t nChild = 0;
for (uint32_t k = 0; k < nDerives; ++k) {
if (kp.Derive(key, nChild)) {
AppendKey(this, key, nChild, derivedKeys);
}
nChild++;
}
chain.pushKV("derived_keys", derivedKeys);
for (uint32_t k = 0; k < nDerivesH; ++k) {
nChild = k;
SetHardenedBit(nChild);
if (kp.Derive(key, nChild)) {
AppendKey(this, key, nChild, derivedKeysH);
}
}
chain.pushKV("derived_keys_hardened", derivedKeysH);
}
}
// Read stealth keys from packs to keep metadata such as prefix
size_t nPackStealthAddrs = 0;
size_t nPackStealthKeys = 0;
if (acc["stealth_address_pack"].isNum()) {
nPackStealthAddrs = acc["stealth_address_pack"].get_int();
}
if (acc["stealth_keys_received_pack"].isNum()) {
nPackStealthKeys = acc["stealth_keys_received_pack"].get_int();
}
CKeyID idAcc;
CBitcoinAddress accIdAddr(acc["id"].get_str());
if (!accIdAddr.IsValid(CChainParams::EXT_ACC_HASH)) {
WalletLogPrintf("%s: ERROR - Invalid account id %s\n", __func__, acc["id"].get_str());
acc.pushKV("ERROR", "Invalid account id");
continue;
}
accIdAddr.GetKeyID(idAcc, CChainParams::EXT_ACC_HASH);
std::map<CKeyID, std::pair<CKey, std::string> > mapStealthKeySpend;
UniValue stealthAddresses(UniValue::VARR);
std::vector<CEKAStealthKeyPack> aksPak;
for (uint32_t i = 0; i <= nPackStealthAddrs; ++i) {
if (!wdb.ReadExtStealthKeyPack(idAcc, i, aksPak)) {
continue;
}
for (const auto &sxPacked : aksPak) {
UniValue sxAddr(UniValue::VOBJ);
if (!sxPacked.aks.sLabel.empty()) {
sxAddr.pushKV("label", sxPacked.aks.sLabel);
}
CStealthAddress sx;
sxPacked.aks.SetSxAddr(sx);
std::string sxStr = sx.ToString();
sxAddr.pushKV("address", sxStr);
sxAddr.pushKV("scan_priv", CBitcoinSecret(sxPacked.aks.skScan).ToString());
size_t p = sxPacked.aks.akSpend.nParent;
if (p >= vChains.size()+1) {
WalletLogPrintf("%s: ERROR - chain out of range %d\n", __func__, p);
acc.pushKV("ERROR", "Invalid chain offset.");
continue;
}
// Chain0 is the account key
CExtKeyPair &kp = vChains[p-1];
CKey kSpend;
uint32_t nChild = sxPacked.aks.akSpend.nKey;
if (kp.Derive(kSpend, nChild)) {
sxAddr.pushKV("spend_priv", CBitcoinSecret(kSpend).ToString());
} else {
WalletLogPrintf("%s: ERROR - Derive failed %u\n", __func__, nChild);
acc.pushKV("ERROR", "Derive spend key failed.");
}
mapStealthKeySpend[sxPacked.id] = std::make_pair(kSpend, sxStr);
sxAddr.pushKV("account_chain", (int)sxPacked.aks.akSpend.nParent);
uint32_t nScanKey = sxPacked.aks.nScanKey;
ClearHardenedBit(nScanKey);
sxAddr.pushKV("scan_key_offset", ToString((int64_t)nScanKey)+"'");
std::map<CTxDestination, CAddressBookData>::const_iterator mi = m_address_book.find(sx);
if (mi != m_address_book.end()) {
// TODO: confirm vPath?
if (mi->second.GetLabel() != sxPacked.aks.sLabel) {
sxAddr.pushKV("addr_book_label", mi->second.GetLabel());
}
if (!mi->second.purpose.empty()) {
sxAddr.pushKV("purpose", mi->second.purpose);
}
UniValue objDestData(UniValue::VOBJ);
for (const auto &pair : mi->second.destdata) {
sxAddr.pushKV(pair.first, pair.second);
}
if (objDestData.size() > 0) {
sxAddr.pushKV("destdata", objDestData);
}
}
stealthAddresses.push_back(sxAddr);
}
}
acc.pushKV("stealth_addresses", stealthAddresses);
UniValue stealthReceivedKeys(UniValue::VARR);
std::vector<CEKASCKeyPack> asckPak;
for (uint32_t i = 0; i <= nPackStealthKeys; ++i) {
if (!wdb.ReadExtStealthKeyChildPack(idAcc, i, asckPak)) {
continue;
}
for (const auto &keyPacked : asckPak) {
UniValue obj(UniValue::VOBJ);
obj.pushKV("address", EncodeDestination(PKHash(keyPacked.id)));
CKey kOut, kSpend;
std::map<CKeyID, std::pair<CKey, std::string> >::const_iterator mi;
if ((mi = mapStealthKeySpend.find(keyPacked.asck.idStealthKey)) == mapStealthKeySpend.end()) {
WalletLogPrintf("%s: ERROR - Unknown stealth key %s\n", __func__, HexStr(keyPacked.asck.idStealthKey));
acc.pushKV("ERROR", "Unknown stealth key.");
} else {
obj.pushKV("stealth_address", mi->second.second);
if (0 != StealthSharedToSecretSpend(keyPacked.asck.sShared, mi->second.first, kOut)) {
WalletLogPrintf("%s: ERROR - StealthSharedToSecretSpend failed\n", __func__);
acc.pushKV("ERROR", "StealthSharedToSecretSpend failed.");
} else {
obj.pushKV("privkey", CBitcoinSecret(kOut).ToString());
}
}
stealthReceivedKeys.push_back(obj);
}
}
acc.pushKV("keys_received_on_stealth_addresses", stealthReceivedKeys);
}
rv.pushKV("loose_extkeys", extkeys);
rv.pushKV("accounts", extaccs);
UniValue stealthAddresses(UniValue::VARR);
ListLooseStealthAddresses(stealthAddresses, this, true, true);
rv.pushKV("imported_stealth_addresses", stealthAddresses);
return true;
};
bool CHDWallet::LoadJson(const UniValue &inj, std::string &sError)
{
WalletLogPrintf("Loading wallet from JSON.\n");
if (IsLocked()) {
return wserrorN(false, sError, __func__, "Wallet must be unlocked.");
}
LOCK(cs_wallet);
return wserrorN(false, sError, __func__, "TODO: LoadJson.");
return true;
};
bool CHDWallet::LoadAddressBook(CHDWalletDB *pwdb)
{
LogPrint(BCLog::HDWALLET, "Loading address book for %s.\n", GetName());
assert(pwdb);
LOCK(cs_wallet);
Dbc *pcursor;
if (!(pcursor = pwdb->GetCursor())) {
throw std::runtime_error(strprintf("%s: cannot create DB cursor", __func__).c_str());
}
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
std::string strType, strAddress, sPrefix = "abe";
size_t nCount = 0;
unsigned int fFlags = DB_SET_RANGE;
ssKey << sPrefix;
while (pwdb->ReadAtCursor(pcursor, ssKey, ssValue, fFlags) == 0) {
fFlags = DB_NEXT;
ssKey >> strType;
if (strType != sPrefix) {
break;
}
ssKey >> strAddress;
CAddressBookData data;
ssValue >> data;
// Can't use m_address_book.insert, loses &name
CTxDestination address = DecodeDestination(strAddress);
std::map<CTxDestination, CAddressBookData>::iterator mi = m_address_book.find(address);
bool fUpdated = (mi != m_address_book.end() && !mi->second.IsChange());
m_address_book[address].Set(data);
if (!fUpdated) {
nCount++;
}
}
LogPrint(BCLog::HDWALLET, "%s Loaded %d addresses.\n", GetDisplayName(), nCount);
pcursor->close();
return true;
};
bool CHDWallet::LoadVoteTokens(CHDWalletDB *pwdb)
{
LogPrint(BCLog::HDWALLET, "%s Loading vote tokens.\n", GetDisplayName());
vVoteTokens.clear();
std::vector<CVoteToken> vVoteTokensRead;
if (!pwdb->ReadVoteTokens(vVoteTokensRead)) {
return false;
}
int nBestHeight = m_last_block_processed_height > -1 ? GetLastBlockHeight() : 0;
for (const auto &v : vVoteTokensRead) {
if (v.nEnd > nBestHeight - 1000) { // 1000 block buffer in case of reorg etc
vVoteTokens.push_back(v);
if (LogAcceptCategory(BCLog::HDWALLET)) {
if ((v.nToken >> 16) < 1
|| (v.nToken & 0xFFFF) < 1) {
WalletLogPrintf("Clearing vote from block %d to %d.\n",
v.nStart, v.nEnd);
} else {
WalletLogPrintf("Voting for option %u on proposal %u from block %d to %d.\n",
v.nToken >> 16, v.nToken & 0xFFFF, v.nStart, v.nEnd);
}
}
}
}
return true;
};
bool CHDWallet::GetVote(int nHeight, uint32_t &token)
{
for (auto i = vVoteTokens.crbegin(); i != vVoteTokens.crend(); ++i) {
if (i->nEnd < nHeight
|| i->nStart > nHeight) {
continue;
}
if ((i->nToken >> 16) < 1
|| (i->nToken & 0xFFFF) < 1) {
continue;
}
token = i->nToken;
return true;
}
return false;
};
bool CHDWallet::LoadTxRecords(CHDWalletDB *pwdb)
{
LogPrint(BCLog::HDWALLET, "Loading transaction records for %s.\n", GetName());
assert(pwdb);
LOCK(cs_wallet);
Dbc *pcursor;
if (!(pcursor = pwdb->GetCursor())) {
throw std::runtime_error(strprintf("%s: cannot create DB cursor", __func__).c_str());
}
CDataStream ssKey(SER_DISK, CLIENT_VERSION);
CDataStream ssValue(SER_DISK, CLIENT_VERSION);
std::string strType, sPrefix = "rtx";
uint256 txhash;
unsigned int fFlags = DB_SET_RANGE;
ssKey << sPrefix;
while (pwdb->ReadAtCursor(pcursor, ssKey, ssValue, fFlags) == 0) {
fFlags = DB_NEXT;
ssKey >> strType;
if (strType != sPrefix) {
break;
}
ssKey >> txhash;
CTransactionRecord data;
ssValue >> data;
LoadToWallet(txhash, data);
}
pcursor->close();
int32_t flag;
if (!pwdb->ReadFlag("anon_vin_v2", flag)) {
WalletLogPrintf("Upgrading TransactionRecord format.\n");
for (auto &ri : mapRecords) {
const uint256 &txhash = ri.first;
CTransactionRecord &rtx = ri.second;
std::vector<COutPoint> new_vin;
if (rtx.nFlags & ORF_ANON_IN) {
for (const auto &prevout : rtx.vin) {
CCmpPubKey ki;
memcpy(ki.ncbegin(), prevout.hash.begin(), 32);
*(ki.ncbegin()+32) = prevout.n;
COutPoint kiPrevout;
if (!pwdb->ReadAnonKeyImage(ki, kiPrevout)) {
WalletLogPrintf("Warning: Unknown keyimage %s.\n", HexStr(Span<const unsigned char>(ki.begin(), 33)));
continue;
}
new_vin.push_back(kiPrevout);
}
rtx.vin = new_vin;
pwdb->WriteTxRecord(txhash, rtx);
}
}
pwdb->WriteFlag("anon_vin_v2", 1);
}
// Must load all records before marking spent.
MapRecords_t::iterator mri;
MapWallet_t::iterator mwi;
for (const auto &ri : mapRecords) {
const uint256 &txhash = ri.first;
const CTransactionRecord &rtx = ri.second;
for (const auto &prevout : rtx.vin) {
AddToSpends(prevout, txhash);
if ((mri = mapRecords.find(prevout.hash)) != mapRecords.end()) {
CTransactionRecord &prevtx = mri->second;
if (prevtx.nIndex == -1 && !prevtx.HashUnset()) {
MarkConflicted(prevtx.blockHash, prevtx.block_height, txhash);
}
} else
if ((mwi = mapWallet.find(prevout.hash)) != mapWallet.end()) {
CWalletTx &prevtx = mwi->second;
if (prevtx.isConflicted()) {
MarkConflicted(prevtx.m_confirm.hashBlock, prevtx.m_confirm.block_height, txhash);
}
}
}
}
WalletLogPrintf("mapRecords.size() = %u\n", mapRecords.size());
return true;
};
bool CHDWallet::IsLocked() const
{
LOCK(cs_wallet); // Lock cs_wallet to ensure any CHDWallet::Unlock has completed
return CWallet::IsLocked();
};
bool CHDWallet::EncryptWallet(const SecureString &strWalletPassphrase)
{
LogPrint(BCLog::HDWALLET, "%s %s\n", GetDisplayName(), __func__);
if (IsCrypted()) {
return false;
}
CKeyingMaterial vMasterKey;
vMasterKey.resize(WALLET_CRYPTO_KEY_SIZE);
GetStrongRandBytes(&vMasterKey[0], WALLET_CRYPTO_KEY_SIZE);
CMasterKey kMasterKey;
kMasterKey.vchSalt.resize(WALLET_CRYPTO_SALT_SIZE);
GetStrongRandBytes(&kMasterKey.vchSalt[0], WALLET_CRYPTO_SALT_SIZE);
CCrypter crypter;
int64_t nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, 25000, kMasterKey.nDerivationMethod);
kMasterKey.nDeriveIterations = 2500000 / ((double)(GetTimeMillis() - nStartTime));
nStartTime = GetTimeMillis();
crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod);
kMasterKey.nDeriveIterations = (kMasterKey.nDeriveIterations + kMasterKey.nDeriveIterations * 100 / ((double)(GetTimeMillis() - nStartTime))) / 2;
if (kMasterKey.nDeriveIterations < 25000)
kMasterKey.nDeriveIterations = 25000;
WalletLogPrintf("Encrypting wallet with an nDeriveIterations of %i\n", kMasterKey.nDeriveIterations);
if (!crypter.SetKeyFromPassphrase(strWalletPassphrase, kMasterKey.vchSalt, kMasterKey.nDeriveIterations, kMasterKey.nDerivationMethod))
return false;
if (!crypter.Encrypt(vMasterKey, kMasterKey.vchCryptedKey))
return false;
{
LOCK(cs_wallet);
mapMasterKeys[++nMasterKeyMaxID] = kMasterKey;
WalletBatch* encrypted_batch = new CHDWalletDB(*database);
if (!encrypted_batch->TxnBegin()) {
delete encrypted_batch;
encrypted_batch = nullptr;
return false;
}
encrypted_batch->WriteMasterKey(nMasterKeyMaxID, kMasterKey);
for (const auto& spk_man_pair : m_spk_managers) {
if (!spk_man_pair.second->Encrypt(vMasterKey, encrypted_batch)) {
encrypted_batch->TxnAbort();
delete encrypted_batch;
encrypted_batch = nullptr;
// We now probably have half of our keys encrypted in memory, and half not...
// die and let the user reload the unencrypted wallet.
assert(false);
}
}
if (0 != ExtKeyEncryptAll((CHDWalletDB*)encrypted_batch, vMasterKey)) {
WalletLogPrintf("Terminating - Error: ExtKeyEncryptAll failed.\n");
//if (fFileBacked)
{
encrypted_batch->TxnAbort();
delete encrypted_batch;
}
assert(false); // die and let the user reload the unencrypted wallet.
}
// Encryption was introduced in version 0.4.0
SetMinVersion(FEATURE_WALLETCRYPT, encrypted_batch);
//if (fFileBacked)
{
if (!encrypted_batch->TxnCommit()) {
delete encrypted_batch;
// We now have keys encrypted in memory, but not on disk...
// die to avoid confusion and let the user reload the unencrypted wallet.
assert(false);
}
delete encrypted_batch;
encrypted_batch = nullptr;
}
if (!Lock())
WalletLogPrintf("%s: ERROR: Lock wallet failed!\n", __func__);
if (!Unlock(strWalletPassphrase, true))
WalletLogPrintf("%s: ERROR: Unlock wallet failed!\n", __func__);
if (!Lock())
WalletLogPrintf("%s: ERROR: Lock wallet failed!\n", __func__);
// Need to completely rewrite the wallet file; if we don't, bdb might keep
// bits of the unencrypted private key in slack space in the database file.
database->Rewrite();
// BDB seems to have a bad habit of writing old data into
// slack space in .dat files; that is bad if the old data is
// unencrypted private keys. So:
database->ReloadDbEnv();
}
NotifyStatusChanged(this);
return true;
};
bool CHDWallet::Lock()
{
LogPrint(BCLog::HDWALLET, "%s %s\n", GetDisplayName(), __func__);
if (IsLocked()) {
return true;
}
WalletLogPrintf("Locking wallet.\n");
{
LOCK(cs_wallet);
ExtKeyLock();
}
return CWallet::Lock();
};
bool CHDWallet::Unlock(const SecureString &strWalletPassphrase, bool accept_no_keys)
{
LogPrint(BCLog::HDWALLET, "%s %s\n", GetDisplayName(), __func__);
if (!IsCrypted()) {
return werror("%s: Wallet is not encrypted.\n", __func__);
}
bool fWasUnlocked = false;
CKeyingMaterial vMasterKeyOld;
if (!IsLocked()) {
LogPrint(BCLog::HDWALLET, "%s %s: Wallet is already unlocked.\n", GetDisplayName(), __func__);
// Possibly unlocked for staking
LOCK(cs_wallet);
fWasUnlocked = true;
vMasterKeyOld = vMasterKey;