tx_verification_utils.h

Go to the documentation of this file.

// Copyright (c) 2023, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#pragma once

#include "common/data_cache.h"
#include "cryptonote_basic/cryptonote_basic.h"
#include "cryptonote_basic/verification_context.h"

namespace cryptonote
{

uint64_t get_transaction_weight_limit(uint8_t hf_version);

// Modifying this value should not affect consensus. You can adjust it for performance needs
static constexpr const size_t RCT_VER_CACHE_SIZE = 8192;

using rct_ver_cache_t = ::tools::data_cache<::crypto::hash, RCT_VER_CACHE_SIZE>;

bool ver_rct_non_semantics_simple_cached
(
    transaction& tx,
    const rct::ctkeyM& mix_ring,
    rct_ver_cache_t& cache,
    std::uint8_t rct_type_to_cache
);

bool ver_mixed_rct_semantics(std::vector<const rct::rctSig*> rvv);

struct pool_supplement
{
    // Map of supplemental tx info that we might need to validate a block
    // Maps TXID -> transaction and blob
    std::unordered_map<crypto::hash, std::pair<transaction, blobdata>> txs_by_txid;
    // If non-zero, then consider all the txs' non-input consensus (NIC) rules verified for this
    // hard fork. User: If you add an unverified transaction to txs_by_txid, set this field to zero!
    mutable std::uint8_t nic_verified_hf_version = 0;
};

bool ver_non_input_consensus(const transaction& tx, tx_verification_context& tvc,
    std::uint8_t hf_version);

bool ver_non_input_consensus(const pool_supplement& ps, tx_verification_context& tvc,
    std::uint8_t hf_version);

} // namespace cryptonote