Files
rippled/include/xrpl/protocol/HashPrefix.h
Denis Angell 2a61aee562 Add Batch feature (XLS-56) (#5060)
- Specification: [XRPLF/XRPL-Standards 56](https://github.com/XRPLF/XRPL-Standards/blob/master/XLS-0056d-batch/README.md)
- Amendment: `Batch`
- Implements execution of multiple transactions within a single batch transaction with four execution modes: `tfAllOrNothing`, `tfOnlyOne`, `tfUntilFailure`, and `tfIndependent`.
- Enables atomic multi-party transactions where multiple accounts can participate in a single batch, with up to 8 inner transactions and 8 batch signers per batch transaction.
- Inner transactions use `tfInnerBatchTxn` flag with zero fees, no signature, and empty signing public key.
- Inner transactions are applied after the outer batch succeeds via the `applyBatchTransactions` function in apply.cpp.
- Network layer prevents relay of transactions with `tfInnerBatchTxn` flag - each peer applies inner transactions locally from the batch.
- Batch transactions are excluded from AccountDelegate permissions but inner transactions retain full delegation support.
- Metadata includes `ParentBatchID` linking inner transactions to their containing batch for traceability and auditing.
- Extended STTx with batch-specific signature verification methods and added protocol structures (`sfRawTransactions`, `sfBatchSigners`).
2025-05-23 19:53:53 +00:00

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//------------------------------------------------------------------------------
/*
This file is part of rippled: https://github.com/ripple/rippled
Copyright (c) 2012, 2013 Ripple Labs Inc.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#ifndef RIPPLE_PROTOCOL_HASHPREFIX_H_INCLUDED
#define RIPPLE_PROTOCOL_HASHPREFIX_H_INCLUDED
#include <xrpl/beast/hash/hash_append.h>
#include <cstdint>
namespace ripple {
namespace detail {
constexpr std::uint32_t
make_hash_prefix(char a, char b, char c)
{
return (static_cast<std::uint32_t>(a) << 24) +
(static_cast<std::uint32_t>(b) << 16) +
(static_cast<std::uint32_t>(c) << 8);
}
} // namespace detail
/** Prefix for hashing functions.
These prefixes are inserted before the source material used to generate
various hashes. This is done to put each hash in its own "space." This way,
two different types of objects with the same binary data will produce
different hashes.
Each prefix is a 4-byte value with the last byte set to zero and the first
three bytes formed from the ASCII equivalent of some arbitrary string. For
example "TXN".
@note Hash prefixes are part of the protocol; you cannot, arbitrarily,
change the type or the value of any of these without causing breakage.
*/
enum class HashPrefix : std::uint32_t {
/** transaction plus signature to give transaction ID */
transactionID = detail::make_hash_prefix('T', 'X', 'N'),
/** transaction plus metadata */
txNode = detail::make_hash_prefix('S', 'N', 'D'),
/** account state */
leafNode = detail::make_hash_prefix('M', 'L', 'N'),
/** inner node in V1 tree */
innerNode = detail::make_hash_prefix('M', 'I', 'N'),
/** ledger master data for signing */
ledgerMaster = detail::make_hash_prefix('L', 'W', 'R'),
/** inner transaction to sign */
txSign = detail::make_hash_prefix('S', 'T', 'X'),
/** inner transaction to multi-sign */
txMultiSign = detail::make_hash_prefix('S', 'M', 'T'),
/** validation for signing */
validation = detail::make_hash_prefix('V', 'A', 'L'),
/** proposal for signing */
proposal = detail::make_hash_prefix('P', 'R', 'P'),
/** Manifest */
manifest = detail::make_hash_prefix('M', 'A', 'N'),
/** Payment Channel Claim */
paymentChannelClaim = detail::make_hash_prefix('C', 'L', 'M'),
/** Credentials signature */
credential = detail::make_hash_prefix('C', 'R', 'D'),
/** Batch */
batch = detail::make_hash_prefix('B', 'C', 'H'),
};
template <class Hasher>
void
hash_append(Hasher& h, HashPrefix const& hp) noexcept
{
using beast::hash_append;
hash_append(h, static_cast<std::uint32_t>(hp));
}
} // namespace ripple
#endif