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Enforce DAA fork at correct height

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This commit is contained in:
Duke Leto
2021-03-27 07:44:50 -04:00
parent 6e7b44b7c0
commit 95697cfaa8
1 changed files with 11 additions and 9 deletions
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src/main.cpp
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@@ -5038,19 +5038,21 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
bool ishush3 = strncmp(SMART_CHAIN_SYMBOL, "HUSH3",5) == 0 ? true : false;
// Check Proof-of-Work difficulty
if (ishush3) {
// The change of blocktime from 150s to 75s caused Weird Stuff in the difficulty/work calculations
// The change of blocktime from 150s to 75s caused incorrect AWT of 34 blocks instead of 17
// caused by the fact that Difficulty Adjustment Algorithms do not take into account blocktime
// changing at run-time, which breaks assumptions in the algorithm
// changing at run-time, from Consensus::Params being a const struct
unsigned int nNextWork = GetNextWorkRequired(pindexPrev, &block, consensusParams);
//if ((nHeight < daaheight) && block.nBits != nNextWork) {
if (block.nBits != nNextWork) {
//cout << "Incorrect HUSH diffbits at height " << nHeight <<
// " " << block.nBits << " block.nBits vs. calc " << nNextWork <<
// " " << block.GetHash().ToString() << " @ " << block.GetBlockTime() << endl;
if (nHeight < daaForkHeight) {
return state.DoS(100, error("%s: Incorrect diffbits at height %d", __func__, nHeight), REJECT_INVALID, "bad-diffbits");
// Enforce correct nbits at DAA fork height, before that, ignore
if (nHeight > daaForkHeight) {
//cout << "Incorrect HUSH diffbits at height " << nHeight <<
// " " << block.nBits << " block.nBits vs. calc " << nNextWork <<
// " " << block.GetHash().ToString() << " @ " << block.GetBlockTime() << endl;
return state.DoS(100, error("%s: Incorrect diffbits at height %d", __func__, nHeight), REJECT_INVALID, "bad-diffbits");
} else {
LogPrintf("%s: Ignoring nbits calc : %lu vs block %lu\n",__func__, nNextWork, block.nBits );
//LogPrintf("%s: Ignoring nbits calc : %lu vs block %lu\n",__func__, nNextWork, block.nBits );
cout << "Ignoring nbits for height=" << nHeight << endl;
}
}