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Code Issues Activity

[validation] Introduce IsBlockMutated

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This commit is contained in:
dergoegge 2024-01-19 15:09:28 +00:00
parent e7669e1343
commit 66abce1d98
2 changed files with 23 additions and 0 deletions
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20
src/validation.cpp
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@ -3824,6 +3824,26 @@ bool HasValidProofOfWork(const std::vector<CBlockHeader>& headers, const Consens
[&](const auto& header) { return CheckProofOfWork(header.GetHash(), header.nBits, consensusParams);});
}
bool IsBlockMutated(const CBlock& block, bool check_witness_root)
{
BlockValidationState state;
if (!CheckMerkleRoot(block, state)) {
LogDebug(BCLog::VALIDATION, "Block mutated: %s\n", state.ToString());
return true;
}
if (block.vtx.empty() || !block.vtx[0]->IsCoinBase()) {
return false;
}
if (!CheckWitnessMalleation(block, check_witness_root, state)) {
LogDebug(BCLog::VALIDATION, "Block mutated: %s\n", state.ToString());
return true;
}
return false;
}
arith_uint256 CalculateHeadersWork(const std::vector<CBlockHeader>& headers)
{
arith_uint256 total_work{0};

3
src/validation.h
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@ -383,6 +383,9 @@ bool TestBlockValidity(BlockValidationState& state,
/** Check with the proof of work on each blockheader matches the value in nBits */
bool HasValidProofOfWork(const std::vector<CBlockHeader>& headers, const Consensus::Params& consensusParams);
/** Check if a block has been mutated (with respect to its merkle root and witness commitments). */
bool IsBlockMutated(const CBlock& block, bool check_witness_root);
/** Return the sum of the work on a given set of headers */
arith_uint256 CalculateHeadersWork(const std::vector<CBlockHeader>& headers);