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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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bitcoin / src / psbt.h

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70,656 bytes · SHA-256 cc7139b01872981a… · View upstream ↗

1501                default: {
1502                    // Read in the value
1503                    std::vector<unsigned char> val_bytes;
1504                    s >> val_bytes;
1505                    unknown.emplace(std::move(key), std::move(val_bytes));
1506                }
1507            }
1508        }
1509
1510        if (!found_sep) {
1511            throw std::ios_base::failure("Separator is missing at the end of the global map");
1512        }
1513
1514        const uint32_t psbt_ver = GetVersion();
1515
1516        // Check PSBT version constraints
1517        if (psbt_ver == 0) {
1518            // Make sure that we got an unsigned tx for PSBTv0
1519            if (!tx) {
1520                throw std::ios_base::failure("No unsigned transaction was provided");
1521            }
1522            // Make sure no PSBTv2 fields are present
1523            if (found_tx_version) {
1524                throw std::ios_base::failure("PSBT_GLOBAL_TX_VERSION is not allowed in PSBTv0");
1525            }
1526            if (found_fallback_locktime) {
1527                throw std::ios_base::failure("PSBT_GLOBAL_FALLBACK_LOCKTIME is not allowed in PSBTv0");
1528            }
1529            if (found_input_count) {
1530                throw std::ios_base::failure("PSBT_GLOBAL_INPUT_COUNT is not allowed in PSBTv0");
1531            }
1532            if (found_output_count) {
1533                throw std::ios_base::failure("PSBT_GLOBAL_OUTPUT_COUNT is not allowed in PSBTv0");
1534            }
1535            if (m_tx_modifiable != std::nullopt) {
1536                throw std::ios_base::failure("PSBT_GLOBAL_TX_MODIFIABLE is not allowed in PSBTv0");
1537            }
1538        }
1539        // Disallow v1
1540        if (psbt_ver == 1) {
1541            throw std::ios_base::failure("There is no PSBT version 1");
1542        }
1543        if (psbt_ver == 2) {
1544            // Tx version, input, and output counts are required
1545            if (!found_tx_version) {
1546                throw std::ios_base::failure("PSBT_GLOBAL_TX_VERSION is required in PSBTv2");
1547            }
1548            if (!found_input_count) {
1549                throw std::ios_base::failure("PSBT_GLOBAL_INPUT_COUNT is required in PSBTv2");
1550            }
1551            if (!found_output_count) {
1552                throw std::ios_base::failure("PSBT_GLOBAL_OUTPUT_COUNT is required in PSBTv2");
1553            }
1554            // Unsigned tx is disallowed
1555            if (tx) {
1556                throw std::ios_base::failure("PSBT_GLOBAL_UNSIGNED_TX is not allowed in PSBTv2");
1557            }
1558        }
1559        if (psbt_ver > 2) {
1560            throw std::ios_base::failure("Unknown PSBT version");
1561        }
1562
1563        // Read input data
1564        unsigned int i = 0;
1565        while (!s.empty() && i < input_count) {
1566            if (psbt_ver < 2) {
1567                inputs.emplace_back(psbt_ver, tx->vin[i].prevout.hash, tx->vin[i].prevout.n, tx->vin[i].nSequence);
1568                s >> inputs.back();
1569            } else {
1570                inputs.emplace_back(deserialize, s, psbt_ver);
1571            }
1572
1573            // Make sure the non-witness utxo matches the outpoint
1574            const PSBTInput& input = inputs.back();
1575            if (input.non_witness_utxo) {
1576                if (psbt_ver < 2) {
1577                    if (input.non_witness_utxo->GetHash() != tx->vin[i].prevout.hash) {
1578                        throw std::ios_base::failure("Non-witness UTXO does not match outpoint hash");
1579                    }
1580                    if (tx->vin[i].prevout.n >= input.non_witness_utxo->vout.size()) {
1581                        throw std::ios_base::failure("Input specifies output index that does not exist");
1582                    }
1583                } else {
1584                    if (input.non_witness_utxo->GetHash() != input.prev_txid) {
1585                        throw std::ios_base::failure("Non-witness UTXO does not match outpoint hash");
1586                    }
1587                    if (input.prev_out >= input.non_witness_utxo->vout.size()) {
1588                        throw std::ios_base::failure("Input specifies output index that does not exist");
1589                    }
1590                }
1591            }
1592            ++i;
1593        }
1594        // Make sure that the number of inputs matches the number of inputs in the transaction
1595        if (inputs.size() != input_count) {
1596            throw std::ios_base::failure("Inputs provided does not match the number of inputs in transaction.");
1597        }
1598
1599        // Read output data
1600        i = 0;
1601        while (!s.empty() && i < output_count) {
1602            if (psbt_ver < 2) {
1603                outputs.emplace_back(psbt_ver, tx->vout[i].nValue, tx->vout[i].scriptPubKey);
1604                s >> outputs.back();
1605            } else {
1606                outputs.emplace_back(deserialize, s, psbt_ver);
1607            }
1608            ++i;
1609        }
1610        // Make sure that the number of outputs matches the number of outputs in the transaction
1611        if (outputs.size() != output_count) {
1612            throw std::ios_base::failure("Outputs provided does not match the number of outputs in transaction.");
1613        }
1614    }
1615
1616    template <typename Stream>
1617    PartiallySignedTransaction(deserialize_type, Stream& s) {
1618        Unserialize(s);
1619    }
1620};
1621
1622enum class PSBTRole {
1623    CREATOR,
1624    UPDATER,
1625    SIGNER,
1626    FINALIZER,
1627    EXTRACTOR
1628};
1629
1630std::string PSBTRoleName(PSBTRole role);
1631
1632/** Compute a PrecomputedTransactionData object from a psbt. */
1633std::optional<PrecomputedTransactionData> PrecomputePSBTData(const PartiallySignedTransaction& psbt);
1634
1635/** Checks whether a PSBTInput is already signed by checking for non-null finalized fields. */
1636bool PSBTInputSigned(const PSBTInput& input);
1637
1638/** Checks whether a PSBTInput is already signed by doing script verification using final fields. */
1639bool PSBTInputSignedAndVerified(const PartiallySignedTransaction& psbt, unsigned int input_index, const PrecomputedTransactionData* txdata);
1640
1641/** Signs a PSBTInput, verifying that all provided data matches what is being signed.
1642 *
1643 * txdata should be the output of PrecomputePSBTData (which can be shared across
1644 * multiple SignPSBTInput calls). If it is nullptr, a dummy signature will be created.
1645 **/
1646[[nodiscard]] util::Expected<void, PSBTError> SignPSBTInput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index, const PrecomputedTransactionData* txdata, const common::PSBTFillOptions& options, SignatureData* out_sigdata = nullptr);
1647
1648/**  Reduces the size of the PSBT by dropping unnecessary `non_witness_utxos` (i.e. complete previous transactions) from a psbt when all inputs are segwit v1. */
1649void RemoveUnnecessaryTransactions(PartiallySignedTransaction& psbtx);
1650
1651/** Counts the unsigned inputs of a PSBT. */
1652size_t CountPSBTUnsignedInputs(const PartiallySignedTransaction& psbt);
1653
1654/** Updates a PSBTOutput with information from provider.
1655 *
1656 * This fills in the redeem_script, witness_script, and hd_keypaths where possible.
1657 */
1658void UpdatePSBTOutput(const SigningProvider& provider, PartiallySignedTransaction& psbt, int index);
1659
1660/**
1661 * Finalizes a PSBT if possible, combining partial signatures.
1662 *
1663 * @param[in,out] psbtx PartiallySignedTransaction to finalize
1664 * return True if the PSBT is now complete, false otherwise
1665 */
1666bool FinalizePSBT(PartiallySignedTransaction& psbtx);
1667
1668/**
1669 * Finalizes a PSBT if possible, and extracts it to a CMutableTransaction if it could be finalized.
1670 *
1671 * @param[in]  psbtx PartiallySignedTransaction
1672 * @param[out] result CMutableTransaction representing the complete transaction, if successful
1673 * @return True if we successfully extracted the transaction, false otherwise
1674 */
1675bool FinalizeAndExtractPSBT(PartiallySignedTransaction& psbtx, CMutableTransaction& result);
1676
1677/**
1678 * Combines PSBTs with the same underlying transaction, resulting in a single PSBT with all partial signatures from each input.
1679 *
1680 * @param[in]  psbtxs the PSBTs to combine
1681 * @return     The combined PSBT or std::nullopt if the PSBTs cannot be combined
1682 */
1683[[nodiscard]] std::optional<PartiallySignedTransaction> CombinePSBTs(const std::vector<PartiallySignedTransaction>& psbtxs);
1684
1685//! Decode a base64ed PSBT into a PartiallySignedTransaction
1686[[nodiscard]] util::Result<PartiallySignedTransaction> DecodeBase64PSBT(const std::string& base64_tx);
1687//! Decode a raw (binary blob) PSBT into a PartiallySignedTransaction
1688[[nodiscard]] util::Result<PartiallySignedTransaction> DecodeRawPSBT(std::span<const std::byte> tx_data);
1689
1690#endif // BITCOIN_PSBT_H
1691

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cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 7

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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