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[validation] Introduce IsBlockMutated

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Github-Pull: #29412
Rebased-From: 66abce1d98115e41f394bc4f4f52341960ddc839
This commit is contained in:
dergoegge 2024-01-19 15:09:28 +00:00 committed by Ava Chow
parent 4f5baac6ca
commit 8804c368f5
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2 changed files with 23 additions and 0 deletions
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20
src/validation.cpp
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@ -3644,6 +3644,26 @@ 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)) {
LogPrint(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)) {
LogPrint(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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@ -352,6 +352,9 @@ 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);