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init: limit bip30 exceptions to coinbase txs

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Co-authored-by: James O'Beirne <james.obeirne@pm.me>
This commit is contained in:
Chris Geihsler 2022-04-14 11:48:19 -04:00
parent 511eb7fdea
commit e899d4ca6f
1 changed files with 5 additions and 2 deletions
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7
src/validation.cpp
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@ -1851,6 +1851,7 @@ DisconnectResult CChainState::DisconnectBlock(const CBlock& block, const CBlockI
const CTransaction &tx = *(block.vtx[i]);
uint256 hash = tx.GetHash();
bool is_coinbase = tx.IsCoinBase();
bool is_bip30_exception = (is_coinbase && !fEnforceBIP30);
// Check that all outputs are available and match the outputs in the block itself
// exactly.
@ -1859,8 +1860,10 @@ DisconnectResult CChainState::DisconnectBlock(const CBlock& block, const CBlockI
COutPoint out(hash, o);
Coin coin;
bool is_spent = view.SpendCoin(out, &coin);
if (fEnforceBIP30 && (!is_spent || tx.vout[o] != coin.out || pindex->nHeight != coin.nHeight || is_coinbase != coin.fCoinBase)) {
fClean = false; // transaction output mismatch
if (!is_spent || tx.vout[o] != coin.out || pindex->nHeight != coin.nHeight || is_coinbase != coin.fCoinBase) {
if (!is_bip30_exception) {
fClean = false; // transaction output mismatch
}
}
}
}