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-rw-r--r--src/wallet/wallet.cpp76
1 files changed, 68 insertions, 8 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 067015c006..d38f943558 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -164,6 +164,7 @@ const CWalletTx* CWallet::GetWalletTx(const uint256& hash) const
CPubKey CWallet::GenerateNewKey(WalletBatch &batch, bool internal)
{
+ assert(!IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS));
AssertLockHeld(cs_wallet); // mapKeyMetadata
bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
@@ -1444,6 +1445,7 @@ CAmount CWallet::GetChange(const CTransaction& tx) const
CPubKey CWallet::GenerateNewSeed()
{
+ assert(!IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS));
CKey key;
key.MakeNewKey(true);
return DeriveNewSeed(key);
@@ -1505,6 +1507,34 @@ bool CWallet::IsHDEnabled() const
return !hdChain.seed_id.IsNull();
}
+void CWallet::SetWalletFlag(uint64_t flags)
+{
+ LOCK(cs_wallet);
+ m_wallet_flags |= flags;
+ if (!WalletBatch(*database).WriteWalletFlags(m_wallet_flags))
+ throw std::runtime_error(std::string(__func__) + ": writing wallet flags failed");
+}
+
+bool CWallet::IsWalletFlagSet(uint64_t flag)
+{
+ return (m_wallet_flags & flag);
+}
+
+bool CWallet::SetWalletFlags(uint64_t overwriteFlags, bool memonly)
+{
+ LOCK(cs_wallet);
+ m_wallet_flags = overwriteFlags;
+ if (((overwriteFlags & g_known_wallet_flags) >> 32) ^ (overwriteFlags >> 32)) {
+ // contains unknown non-tolerable wallet flags
+ return false;
+ }
+ if (!memonly && !WalletBatch(*database).WriteWalletFlags(m_wallet_flags)) {
+ throw std::runtime_error(std::string(__func__) + ": writing wallet flags failed");
+ }
+
+ return true;
+}
+
int64_t CWalletTx::GetTxTime() const
{
int64_t n = nTimeSmart;
@@ -1947,6 +1977,7 @@ CAmount CWalletTx::GetAvailableCredit(bool fUseCache, const isminefilter& filter
if (cache) {
*cache = nCredit;
+ assert(cache_used);
*cache_used = true;
}
return nCredit;
@@ -2720,6 +2751,10 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CTransac
// post-backup change.
// Reserve a new key pair from key pool
+ if (IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ strFailReason = _("Can't generate a change-address key. Private keys are disabled for this wallet.");
+ return false;
+ }
CPubKey vchPubKey;
bool ret;
ret = reservekey.GetReservedKey(vchPubKey, true);
@@ -3120,7 +3155,7 @@ DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
{
LOCK(cs_KeyStore);
// This wallet is in its first run if all of these are empty
- fFirstRunRet = mapKeys.empty() && mapCryptedKeys.empty() && mapWatchKeys.empty() && setWatchOnly.empty() && mapScripts.empty();
+ fFirstRunRet = mapKeys.empty() && mapCryptedKeys.empty() && mapWatchKeys.empty() && setWatchOnly.empty() && mapScripts.empty() && !IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
}
if (nLoadWalletRet != DBErrors::LOAD_OK)
@@ -3244,6 +3279,9 @@ const std::string& CWallet::GetLabelName(const CScript& scriptPubKey) const
*/
bool CWallet::NewKeyPool()
{
+ if (IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ return false;
+ }
{
LOCK(cs_wallet);
WalletBatch batch(*database);
@@ -3302,6 +3340,9 @@ void CWallet::LoadKeyPool(int64_t nIndex, const CKeyPool &keypool)
bool CWallet::TopUpKeyPool(unsigned int kpSize)
{
+ if (IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ return false;
+ }
{
LOCK(cs_wallet);
@@ -3426,6 +3467,10 @@ void CWallet::ReturnKey(int64_t nIndex, bool fInternal, const CPubKey& pubkey)
bool CWallet::GetKeyFromPool(CPubKey& result, bool internal)
{
+ if (IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ return false;
+ }
+
CKeyPool keypool;
{
LOCK(cs_wallet);
@@ -3965,7 +4010,7 @@ bool CWallet::Verify(std::string wallet_file, bool salvage_wallet, std::string&
return WalletBatch::VerifyDatabaseFile(wallet_path, warning_string, error_string);
}
-std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(const std::string& name, const fs::path& path)
+std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(const std::string& name, const fs::path& path, uint64_t wallet_creation_flags)
{
const std::string& walletFile = name;
@@ -4025,7 +4070,7 @@ std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(const std::string& name,
if (nMaxVersion == 0) // the -upgradewallet without argument case
{
LogPrintf("Performing wallet upgrade to %i\n", FEATURE_LATEST);
- nMaxVersion = CLIENT_VERSION;
+ nMaxVersion = FEATURE_LATEST;
walletInstance->SetMinVersion(FEATURE_LATEST); // permanently upgrade the wallet immediately
}
else
@@ -4090,18 +4135,33 @@ std::shared_ptr<CWallet> CWallet::CreateWalletFromFile(const std::string& name,
}
walletInstance->SetMinVersion(FEATURE_LATEST);
- // generate a new seed
- CPubKey seed = walletInstance->GenerateNewSeed();
- if (!walletInstance->SetHDSeed(seed))
- throw std::runtime_error(std::string(__func__) + ": Storing HD seed failed");
+ if ((wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ //selective allow to set flags
+ walletInstance->SetWalletFlag(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
+ } else {
+ // generate a new seed
+ CPubKey seed = walletInstance->GenerateNewSeed();
+ if (!walletInstance->SetHDSeed(seed)) {
+ throw std::runtime_error(std::string(__func__) + ": Storing HD seed failed");
+ }
+ }
// Top up the keypool
- if (!walletInstance->TopUpKeyPool()) {
+ if (!walletInstance->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS) && !walletInstance->TopUpKeyPool()) {
InitError(_("Unable to generate initial keys") += "\n");
return nullptr;
}
walletInstance->ChainStateFlushed(chainActive.GetLocator());
+ } else if (wallet_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS) {
+ // Make it impossible to disable private keys after creation
+ InitError(strprintf(_("Error loading %s: Private keys can only be disabled during creation"), walletFile));
+ return NULL;
+ } else if (walletInstance->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
+ LOCK(walletInstance->cs_KeyStore);
+ if (!walletInstance->mapKeys.empty() || !walletInstance->mapCryptedKeys.empty()) {
+ InitWarning(strprintf(_("Warning: Private keys detected in wallet {%s} with disabled private keys"), walletFile));
+ }
} else if (gArgs.IsArgSet("-usehd")) {
bool useHD = gArgs.GetBoolArg("-usehd", true);
if (walletInstance->IsHDEnabled() && !useHD) {
generated by cgit v1.2.3 (git 2.26.2) at 2024-08-26 23:45:24 +0000