diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/chain.h | 6 | ||||
| -rw-r--r-- | src/qt/guiutil.cpp | 10 | ||||
| -rw-r--r-- | src/qt/macdockiconhandler.mm | 21 | ||||
| -rw-r--r-- | src/qt/receivecoinsdialog.cpp | 2 | ||||
| -rw-r--r-- | src/qt/recentrequeststablemodel.h | 2 | ||||
| -rw-r--r-- | src/test/txvalidationcache_tests.cpp | 20 | ||||
| -rw-r--r-- | src/validation.cpp | 166 | ||||
| -rw-r--r-- | src/wallet/wallet.cpp | 28 |
8 files changed, 124 insertions, 131 deletions
diff --git a/src/chain.h b/src/chain.h index dd9cc2a598..1b67ebbe41 100644 --- a/src/chain.h +++ b/src/chain.h @@ -95,8 +95,8 @@ enum BlockStatus: uint32_t { //! Unused. BLOCK_VALID_UNKNOWN = 0, - //! Parsed, version ok, hash satisfies claimed PoW, 1 <= vtx count <= max, timestamp not in future - BLOCK_VALID_HEADER = 1, + //! Reserved (was BLOCK_VALID_HEADER). + BLOCK_VALID_RESERVED = 1, //! All parent headers found, difficulty matches, timestamp >= median previous, checkpoint. Implies all parents //! are also at least TREE. @@ -117,7 +117,7 @@ enum BlockStatus: uint32_t { BLOCK_VALID_SCRIPTS = 5, //! All validity bits. - BLOCK_VALID_MASK = BLOCK_VALID_HEADER | BLOCK_VALID_TREE | BLOCK_VALID_TRANSACTIONS | + BLOCK_VALID_MASK = BLOCK_VALID_RESERVED | BLOCK_VALID_TREE | BLOCK_VALID_TRANSACTIONS | BLOCK_VALID_CHAIN | BLOCK_VALID_SCRIPTS, BLOCK_HAVE_DATA = 8, //!< full block available in blk*.dat diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp index bbe6e9bf87..070df31aa6 100644 --- a/src/qt/guiutil.cpp +++ b/src/qt/guiutil.cpp @@ -57,9 +57,10 @@ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wdeprecated-declarations" -#include <objc/objc-runtime.h> #include <CoreServices/CoreServices.h> #include <QProcess> + +void ForceActivation(); #endif namespace GUIUtil { @@ -359,10 +360,7 @@ bool isObscured(QWidget *w) void bringToFront(QWidget* w) { #ifdef Q_OS_MAC - // Force application activation on macOS. With Qt 5.4 this is required when - // an action in the dock menu is triggered. - id app = objc_msgSend((id) objc_getClass("NSApplication"), sel_registerName("sharedApplication")); - objc_msgSend(app, sel_registerName("activateIgnoringOtherApps:"), YES); + ForceActivation(); #endif if (w) { @@ -947,7 +945,7 @@ void PolishProgressDialog(QProgressDialog* dialog) { #ifdef Q_OS_MAC // Workaround for macOS-only Qt bug; see: QTBUG-65750, QTBUG-70357. - const int margin = dialog->fontMetrics().width("X"); + const int margin = TextWidth(dialog->fontMetrics(), ("X")); dialog->resize(dialog->width() + 2 * margin, dialog->height()); dialog->show(); #else diff --git a/src/qt/macdockiconhandler.mm b/src/qt/macdockiconhandler.mm index 102adce6c5..5eb23c76e6 100644 --- a/src/qt/macdockiconhandler.mm +++ b/src/qt/macdockiconhandler.mm @@ -1,12 +1,11 @@ -// Copyright (c) 2011-2018 The Bitcoin Core developers +// Copyright (c) 2011-2019 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 "macdockiconhandler.h" -#undef slots -#include <objc/objc.h> -#include <objc/message.h> +#include <AppKit/AppKit.h> +#include <objc/runtime.h> static MacDockIconHandler *s_instance = nullptr; @@ -21,9 +20,7 @@ bool dockClickHandler(id self, SEL _cmd, ...) { } void setupDockClickHandler() { - id app = objc_msgSend((id)objc_getClass("NSApplication"), sel_registerName("sharedApplication")); - id delegate = objc_msgSend(app, sel_registerName("delegate")); - Class delClass = (Class)objc_msgSend(delegate, sel_registerName("class")); + Class delClass = (Class)[[[NSApplication sharedApplication] delegate] class]; SEL shouldHandle = sel_registerName("applicationShouldHandleReopen:hasVisibleWindows:"); class_replaceMethod(delClass, shouldHandle, (IMP)dockClickHandler, "B@:"); } @@ -44,3 +41,13 @@ void MacDockIconHandler::cleanup() { delete s_instance; } + +/** + * Force application activation on macOS. With Qt 5.5.1 this is required when + * an action in the Dock menu is triggered. + * TODO: Define a Qt version where it's no-longer necessary. + */ +void ForceActivation() +{ + [[NSApplication sharedApplication] activateIgnoringOtherApps:YES]; +} diff --git a/src/qt/receivecoinsdialog.cpp b/src/qt/receivecoinsdialog.cpp index 05157c2a4a..e8cf432131 100644 --- a/src/qt/receivecoinsdialog.cpp +++ b/src/qt/receivecoinsdialog.cpp @@ -261,7 +261,7 @@ void ReceiveCoinsDialog::copyColumnToClipboard(int column) if (!firstIndex.isValid()) { return; } - GUIUtil::setClipboard(model->getRecentRequestsTableModel()->data(firstIndex.child(firstIndex.row(), column), Qt::EditRole).toString()); + GUIUtil::setClipboard(model->getRecentRequestsTableModel()->index(firstIndex.row(), column).data(Qt::EditRole).toString()); } // context menu diff --git a/src/qt/recentrequeststablemodel.h b/src/qt/recentrequeststablemodel.h index 8a1140e952..130b709d46 100644 --- a/src/qt/recentrequeststablemodel.h +++ b/src/qt/recentrequeststablemodel.h @@ -76,7 +76,7 @@ public: QVariant data(const QModelIndex &index, int role) const; bool setData(const QModelIndex &index, const QVariant &value, int role); QVariant headerData(int section, Qt::Orientation orientation, int role) const; - QModelIndex index(int row, int column, const QModelIndex &parent) const; + QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const; bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex()); Qt::ItemFlags flags(const QModelIndex &index) const; /*@}*/ diff --git a/src/test/txvalidationcache_tests.cpp b/src/test/txvalidationcache_tests.cpp index e69ebcc2c3..193858cca9 100644 --- a/src/test/txvalidationcache_tests.cpp +++ b/src/test/txvalidationcache_tests.cpp @@ -13,7 +13,7 @@ #include <boost/test/unit_test.hpp> -bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks); +bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks); BOOST_AUTO_TEST_SUITE(tx_validationcache_tests) @@ -125,7 +125,7 @@ static void ValidateCheckInputsForAllFlags(const CTransaction &tx, uint32_t fail // WITNESS requires P2SH test_flags |= SCRIPT_VERIFY_P2SH; } - bool ret = CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, nullptr); + bool ret = CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), test_flags, true, add_to_cache, txdata, nullptr); // CheckInputs should succeed iff test_flags doesn't intersect with // failing_flags bool expected_return_value = !(test_flags & failing_flags); @@ -135,13 +135,13 @@ static void ValidateCheckInputsForAllFlags(const CTransaction &tx, uint32_t fail if (ret && add_to_cache) { // Check that we get a cache hit if the tx was valid std::vector<CScriptCheck> scriptchecks; - BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, &scriptchecks)); + BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), test_flags, true, add_to_cache, txdata, &scriptchecks)); BOOST_CHECK(scriptchecks.empty()); } else { // Check that we get script executions to check, if the transaction // was invalid, or we didn't add to cache. std::vector<CScriptCheck> scriptchecks; - BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), true, test_flags, true, add_to_cache, txdata, &scriptchecks)); + BOOST_CHECK(CheckInputs(tx, state, &::ChainstateActive().CoinsTip(), test_flags, true, add_to_cache, txdata, &scriptchecks)); BOOST_CHECK_EQUAL(scriptchecks.size(), tx.vin.size()); } } @@ -204,13 +204,13 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) CValidationState state; PrecomputedTransactionData ptd_spend_tx(spend_tx); - BOOST_CHECK(!CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr)); + BOOST_CHECK(!CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, nullptr)); // If we call again asking for scriptchecks (as happens in // ConnectBlock), we should add a script check object for this -- we're // not caching invalidity (if that changes, delete this test case). std::vector<CScriptCheck> scriptchecks; - BOOST_CHECK(CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks)); + BOOST_CHECK(CheckInputs(CTransaction(spend_tx), state, &::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_DERSIG, true, true, ptd_spend_tx, &scriptchecks)); BOOST_CHECK_EQUAL(scriptchecks.size(), 1U); // Test that CheckInputs returns true iff DERSIG-enforcing flags are @@ -272,7 +272,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) invalid_with_cltv_tx.vin[0].scriptSig = CScript() << vchSig << 100; CValidationState state; PrecomputedTransactionData txdata(invalid_with_cltv_tx); - BOOST_CHECK(CheckInputs(CTransaction(invalid_with_cltv_tx), state, ::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr)); + BOOST_CHECK(CheckInputs(CTransaction(invalid_with_cltv_tx), state, ::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY, true, true, txdata, nullptr)); } // TEST CHECKSEQUENCEVERIFY @@ -300,7 +300,7 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) invalid_with_csv_tx.vin[0].scriptSig = CScript() << vchSig << 100; CValidationState state; PrecomputedTransactionData txdata(invalid_with_csv_tx); - BOOST_CHECK(CheckInputs(CTransaction(invalid_with_csv_tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr)); + BOOST_CHECK(CheckInputs(CTransaction(invalid_with_csv_tx), state, &::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_CHECKSEQUENCEVERIFY, true, true, txdata, nullptr)); } // TODO: add tests for remaining script flags @@ -362,12 +362,12 @@ BOOST_FIXTURE_TEST_CASE(checkinputs_test, TestChain100Setup) CValidationState state; PrecomputedTransactionData txdata(tx); // This transaction is now invalid under segwit, because of the second input. - BOOST_CHECK(!CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr)); + BOOST_CHECK(!CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, nullptr)); std::vector<CScriptCheck> scriptchecks; // Make sure this transaction was not cached (ie because the first // input was valid) - BOOST_CHECK(CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), true, SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks)); + BOOST_CHECK(CheckInputs(CTransaction(tx), state, &::ChainstateActive().CoinsTip(), SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS, true, true, txdata, &scriptchecks)); // Should get 2 script checks back -- caching is on a whole-transaction basis. BOOST_CHECK_EQUAL(scriptchecks.size(), 2U); } diff --git a/src/validation.cpp b/src/validation.cpp index cd19d7666f..a8ebbc1b96 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -184,7 +184,7 @@ std::unique_ptr<CBlockTreeDB> pblocktree; // See definition for documentation static void FindFilesToPruneManual(std::set<int>& setFilesToPrune, int nManualPruneHeight); static void FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPruneAfterHeight); -bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks = nullptr); +bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks = nullptr); static FILE* OpenUndoFile(const FlatFilePos &pos, bool fReadOnly = false); static FlatFileSeq BlockFileSeq(); static FlatFileSeq UndoFileSeq(); @@ -425,7 +425,7 @@ static bool CheckInputsFromMempoolAndCache(const CTransaction& tx, CValidationSt } } - return CheckInputs(tx, state, view, true, flags, cacheSigStore, true, txdata); + return CheckInputs(tx, state, view, flags, cacheSigStore, true, txdata); } /** @@ -773,15 +773,17 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool constexpr unsigned int scriptVerifyFlags = STANDARD_SCRIPT_VERIFY_FLAGS; // Check against previous transactions - // This is done last to help prevent CPU exhaustion denial-of-service attacks. + // The first loop above does all the inexpensive checks. + // Only if ALL inputs pass do we perform expensive ECDSA signature checks. + // Helps prevent CPU exhaustion denial-of-service attacks. PrecomputedTransactionData txdata(tx); - if (!CheckInputs(tx, state, view, true, scriptVerifyFlags, true, false, txdata)) { + if (!CheckInputs(tx, state, view, scriptVerifyFlags, true, false, txdata)) { // SCRIPT_VERIFY_CLEANSTACK requires SCRIPT_VERIFY_WITNESS, so we // need to turn both off, and compare against just turning off CLEANSTACK // to see if the failure is specifically due to witness validation. CValidationState stateDummy; // Want reported failures to be from first CheckInputs - if (!tx.HasWitness() && CheckInputs(tx, stateDummy, view, true, scriptVerifyFlags & ~(SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_CLEANSTACK), true, false, txdata) && - !CheckInputs(tx, stateDummy, view, true, scriptVerifyFlags & ~SCRIPT_VERIFY_CLEANSTACK, true, false, txdata)) { + if (!tx.HasWitness() && CheckInputs(tx, stateDummy, view, scriptVerifyFlags & ~(SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_CLEANSTACK), true, false, txdata) && + !CheckInputs(tx, stateDummy, view, scriptVerifyFlags & ~SCRIPT_VERIFY_CLEANSTACK, true, false, txdata)) { // Only the witness is missing, so the transaction itself may be fine. state.Invalid(ValidationInvalidReason::TX_WITNESS_MUTATED, false, state.GetRejectCode(), state.GetRejectReason(), state.GetDebugMessage()); @@ -1298,90 +1300,79 @@ void InitScriptExecutionCache() { * * Non-static (and re-declared) in src/test/txvalidationcache_tests.cpp */ -bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, bool fScriptChecks, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks) EXCLUSIVE_LOCKS_REQUIRED(cs_main) +bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsViewCache &inputs, unsigned int flags, bool cacheSigStore, bool cacheFullScriptStore, PrecomputedTransactionData& txdata, std::vector<CScriptCheck> *pvChecks) EXCLUSIVE_LOCKS_REQUIRED(cs_main) { - if (!tx.IsCoinBase()) - { - if (pvChecks) - pvChecks->reserve(tx.vin.size()); - - // The first loop above does all the inexpensive checks. - // Only if ALL inputs pass do we perform expensive ECDSA signature checks. - // Helps prevent CPU exhaustion attacks. - - // Skip script verification when connecting blocks under the - // assumevalid block. Assuming the assumevalid block is valid this - // is safe because block merkle hashes are still computed and checked, - // Of course, if an assumed valid block is invalid due to false scriptSigs - // this optimization would allow an invalid chain to be accepted. - if (fScriptChecks) { - // First check if script executions have been cached with the same - // flags. Note that this assumes that the inputs provided are - // correct (ie that the transaction hash which is in tx's prevouts - // properly commits to the scriptPubKey in the inputs view of that - // transaction). - uint256 hashCacheEntry; - // We only use the first 19 bytes of nonce to avoid a second SHA - // round - giving us 19 + 32 + 4 = 55 bytes (+ 8 + 1 = 64) - static_assert(55 - sizeof(flags) - 32 >= 128/8, "Want at least 128 bits of nonce for script execution cache"); - CSHA256().Write(scriptExecutionCacheNonce.begin(), 55 - sizeof(flags) - 32).Write(tx.GetWitnessHash().begin(), 32).Write((unsigned char*)&flags, sizeof(flags)).Finalize(hashCacheEntry.begin()); - AssertLockHeld(cs_main); //TODO: Remove this requirement by making CuckooCache not require external locks - if (scriptExecutionCache.contains(hashCacheEntry, !cacheFullScriptStore)) { - return true; - } - - for (unsigned int i = 0; i < tx.vin.size(); i++) { - const COutPoint &prevout = tx.vin[i].prevout; - const Coin& coin = inputs.AccessCoin(prevout); - assert(!coin.IsSpent()); - - // We very carefully only pass in things to CScriptCheck which - // are clearly committed to by tx' witness hash. This provides - // a sanity check that our caching is not introducing consensus - // failures through additional data in, eg, the coins being - // spent being checked as a part of CScriptCheck. - - // Verify signature - CScriptCheck check(coin.out, tx, i, flags, cacheSigStore, &txdata); - if (pvChecks) { - pvChecks->push_back(CScriptCheck()); - check.swap(pvChecks->back()); - } else if (!check()) { - if (flags & STANDARD_NOT_MANDATORY_VERIFY_FLAGS) { - // Check whether the failure was caused by a - // non-mandatory script verification check, such as - // non-standard DER encodings or non-null dummy - // arguments; if so, ensure we return NOT_STANDARD - // instead of CONSENSUS to avoid downstream users - // splitting the network between upgraded and - // non-upgraded nodes by banning CONSENSUS-failing - // data providers. - CScriptCheck check2(coin.out, tx, i, - flags & ~STANDARD_NOT_MANDATORY_VERIFY_FLAGS, cacheSigStore, &txdata); - if (check2()) - return state.Invalid(ValidationInvalidReason::TX_NOT_STANDARD, false, REJECT_NONSTANDARD, strprintf("non-mandatory-script-verify-flag (%s)", ScriptErrorString(check.GetScriptError()))); - } - // MANDATORY flag failures correspond to - // ValidationInvalidReason::CONSENSUS. Because CONSENSUS - // failures are the most serious case of validation - // failures, we may need to consider using - // RECENT_CONSENSUS_CHANGE for any script failure that - // could be due to non-upgraded nodes which we may want to - // support, to avoid splitting the network (but this - // depends on the details of how net_processing handles - // such errors). - return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, strprintf("mandatory-script-verify-flag-failed (%s)", ScriptErrorString(check.GetScriptError()))); - } - } + if (tx.IsCoinBase()) return true; + + if (pvChecks) { + pvChecks->reserve(tx.vin.size()); + } + + // First check if script executions have been cached with the same + // flags. Note that this assumes that the inputs provided are + // correct (ie that the transaction hash which is in tx's prevouts + // properly commits to the scriptPubKey in the inputs view of that + // transaction). + uint256 hashCacheEntry; + // We only use the first 19 bytes of nonce to avoid a second SHA + // round - giving us 19 + 32 + 4 = 55 bytes (+ 8 + 1 = 64) + static_assert(55 - sizeof(flags) - 32 >= 128/8, "Want at least 128 bits of nonce for script execution cache"); + CSHA256().Write(scriptExecutionCacheNonce.begin(), 55 - sizeof(flags) - 32).Write(tx.GetWitnessHash().begin(), 32).Write((unsigned char*)&flags, sizeof(flags)).Finalize(hashCacheEntry.begin()); + AssertLockHeld(cs_main); //TODO: Remove this requirement by making CuckooCache not require external locks + if (scriptExecutionCache.contains(hashCacheEntry, !cacheFullScriptStore)) { + return true; + } - if (cacheFullScriptStore && !pvChecks) { - // We executed all of the provided scripts, and were told to - // cache the result. Do so now. - scriptExecutionCache.insert(hashCacheEntry); + for (unsigned int i = 0; i < tx.vin.size(); i++) { + const COutPoint &prevout = tx.vin[i].prevout; + const Coin& coin = inputs.AccessCoin(prevout); + assert(!coin.IsSpent()); + + // We very carefully only pass in things to CScriptCheck which + // are clearly committed to by tx' witness hash. This provides + // a sanity check that our caching is not introducing consensus + // failures through additional data in, eg, the coins being + // spent being checked as a part of CScriptCheck. + + // Verify signature + CScriptCheck check(coin.out, tx, i, flags, cacheSigStore, &txdata); + if (pvChecks) { + pvChecks->push_back(CScriptCheck()); + check.swap(pvChecks->back()); + } else if (!check()) { + if (flags & STANDARD_NOT_MANDATORY_VERIFY_FLAGS) { + // Check whether the failure was caused by a + // non-mandatory script verification check, such as + // non-standard DER encodings or non-null dummy + // arguments; if so, ensure we return NOT_STANDARD + // instead of CONSENSUS to avoid downstream users + // splitting the network between upgraded and + // non-upgraded nodes by banning CONSENSUS-failing + // data providers. + CScriptCheck check2(coin.out, tx, i, + flags & ~STANDARD_NOT_MANDATORY_VERIFY_FLAGS, cacheSigStore, &txdata); + if (check2()) + return state.Invalid(ValidationInvalidReason::TX_NOT_STANDARD, false, REJECT_NONSTANDARD, strprintf("non-mandatory-script-verify-flag (%s)", ScriptErrorString(check.GetScriptError()))); } + // MANDATORY flag failures correspond to + // ValidationInvalidReason::CONSENSUS. Because CONSENSUS + // failures are the most serious case of validation + // failures, we may need to consider using + // RECENT_CONSENSUS_CHANGE for any script failure that + // could be due to non-upgraded nodes which we may want to + // support, to avoid splitting the network (but this + // depends on the details of how net_processing handles + // such errors). + return state.Invalid(ValidationInvalidReason::CONSENSUS, false, REJECT_INVALID, strprintf("mandatory-script-verify-flag-failed (%s)", ScriptErrorString(check.GetScriptError()))); } } + if (cacheFullScriptStore && !pvChecks) { + // We executed all of the provided scripts, and were told to + // cache the result. Do so now. + scriptExecutionCache.insert(hashCacheEntry); + } + return true; } @@ -1769,6 +1760,11 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl pindexBestHeader->GetAncestor(pindex->nHeight) == pindex && pindexBestHeader->nChainWork >= nMinimumChainWork) { // This block is a member of the assumed verified chain and an ancestor of the best header. + // Script verification is skipped when connecting blocks under the + // assumevalid block. Assuming the assumevalid block is valid this + // is safe because block merkle hashes are still computed and checked, + // Of course, if an assumed valid block is invalid due to false scriptSigs + // this optimization would allow an invalid chain to be accepted. // The equivalent time check discourages hash power from extorting the network via DOS attack // into accepting an invalid block through telling users they must manually set assumevalid. // Requiring a software change or burying the invalid block, regardless of the setting, makes @@ -1952,7 +1948,7 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl { std::vector<CScriptCheck> vChecks; bool fCacheResults = fJustCheck; /* Don't cache results if we're actually connecting blocks (still consult the cache, though) */ - if (!CheckInputs(tx, state, view, fScriptChecks, flags, fCacheResults, fCacheResults, txdata[i], nScriptCheckThreads ? &vChecks : nullptr)) { + if (fScriptChecks && !CheckInputs(tx, state, view, flags, fCacheResults, fCacheResults, txdata[i], nScriptCheckThreads ? &vChecks : nullptr)) { if (state.GetReason() == ValidationInvalidReason::TX_NOT_STANDARD) { // CheckInputs may return NOT_STANDARD for extra flags we passed, // but we can't return that, as it's not defined for a block, so diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 03acf23508..cf88ab846f 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -93,13 +93,14 @@ std::shared_ptr<CWallet> GetWallet(const std::string& name) static Mutex g_wallet_release_mutex; static std::condition_variable g_wallet_release_cv; -static std::set<CWallet*> g_unloading_wallet_set; +static std::set<std::string> g_unloading_wallet_set; // Custom deleter for shared_ptr<CWallet>. static void ReleaseWallet(CWallet* wallet) { // Unregister and delete the wallet right after BlockUntilSyncedToCurrentChain // so that it's in sync with the current chainstate. + const std::string name = wallet->GetName(); wallet->WalletLogPrintf("Releasing wallet\n"); wallet->BlockUntilSyncedToCurrentChain(); wallet->Flush(); @@ -108,7 +109,7 @@ static void ReleaseWallet(CWallet* wallet) // Wallet is now released, notify UnloadWallet, if any. { LOCK(g_wallet_release_mutex); - if (g_unloading_wallet_set.erase(wallet) == 0) { + if (g_unloading_wallet_set.erase(name) == 0) { // UnloadWallet was not called for this wallet, all done. return; } @@ -119,21 +120,21 @@ static void ReleaseWallet(CWallet* wallet) void UnloadWallet(std::shared_ptr<CWallet>&& wallet) { // Mark wallet for unloading. - CWallet* pwallet = wallet.get(); + const std::string name = wallet->GetName(); { LOCK(g_wallet_release_mutex); - auto it = g_unloading_wallet_set.insert(pwallet); + auto it = g_unloading_wallet_set.insert(name); assert(it.second); } // The wallet can be in use so it's not possible to explicitly unload here. // Notify the unload intent so that all remaining shared pointers are // released. - pwallet->NotifyUnload(); + wallet->NotifyUnload(); // Time to ditch our shared_ptr and wait for ReleaseWallet call. wallet.reset(); { WAIT_LOCK(g_wallet_release_mutex, lock); - while (g_unloading_wallet_set.count(pwallet) == 1) { + while (g_unloading_wallet_set.count(name) == 1) { g_wallet_release_cv.wait(lock); } } @@ -523,18 +524,9 @@ bool CWallet::LoadCScript(const CScript& redeemScript) static bool ExtractPubKey(const CScript &dest, CPubKey& pubKeyOut) { - //TODO: Use Solver to extract this? - CScript::const_iterator pc = dest.begin(); - opcodetype opcode; - std::vector<unsigned char> vch; - if (!dest.GetOp(pc, opcode, vch) || !CPubKey::ValidSize(vch)) - return false; - pubKeyOut = CPubKey(vch); - if (!pubKeyOut.IsFullyValid()) - return false; - if (!dest.GetOp(pc, opcode, vch) || opcode != OP_CHECKSIG || dest.GetOp(pc, opcode, vch)) - return false; - return true; + std::vector<std::vector<unsigned char>> solutions; + return Solver(dest, solutions) == TX_PUBKEY && + (pubKeyOut = CPubKey(solutions[0])).IsFullyValid(); } bool CWallet::AddWatchOnlyInMem(const CScript &dest) |