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Add stake consistency enforcement and near complete CoinbaseGuard validation

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This commit is contained in:
miketout
2018-10-05 14:51:37 -07:00
parent 3bfa5e2264
commit f3b0d2ab4e
4 changed files with 86 additions and 50 deletions
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29
src/komodo_bitcoind.h
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@@ -1454,6 +1454,8 @@ int32_t komodo_is_PoSblock(int32_t slowflag,int32_t height,CBlock *pblock,arith_
return(isPoS != 0);
}
bool ValidateMatchingStake(const CTransaction &ccTx, uint32_t voutNum, const CTransaction &stakeTx, bool &cheating);
// for now, we will ignore slowFlag in the interest of keeping success/fail simpler for security purposes
bool verusCheckPOSBlock(int32_t slowflag, CBlock *pblock, int32_t height)
{
@@ -1487,7 +1489,7 @@ bool verusCheckPOSBlock(int32_t slowflag, CBlock *pblock, int32_t height)
value = pblock->vtx[txn_count-1].vout[0].nValue;
{
bool validHash;
bool validHash = true;
bool enablePOSNonce = CPOSNonce::NewPOSActive(height);
bool newPOSEnforcement = enablePOSNonce && (Params().GetConsensus().vUpgrades[Consensus::UPGRADE_SAPLING].nActivationHeight <= height);
uint256 rawHash;
@@ -1496,18 +1498,21 @@ bool verusCheckPOSBlock(int32_t slowflag, CBlock *pblock, int32_t height)
{
validHash = pblock->GetRawVerusPOSHash(rawHash, height);
posHash = UintToArith256(rawHash) / value;
//if (slowflag)
//{
// printf("first nNonce: %s, height: %d\n", pblock->nNonce.GetHex().c_str(), height);
// printf("Raw POShash: %s\n", posHash.GetHex().c_str());
//}
if (!validHash || posHash > target)
{
validHash = false;
printf("ERROR: invalid nonce value for PoS block\nnNonce: %s\nrawHash: %s\nposHash: %s\nvalue: %lu\n",
pblock->nNonce.GetHex().c_str(), rawHash.GetHex().c_str(), posHash.GetHex().c_str(), value);
}
for (int i = 0; validHash && i < pblock->vtx[0].vout.size(); i++)
{
if (!ValidateMatchingStake(pblock->vtx[0], i, pblock->vtx[txn_count-1], validHash))
{
validHash = false;
}
}
}
if (newPOSEnforcement && !(validHash && posHash <= target))
{
printf("ERROR: invalid nonce value for PoS block\nnNonce: %s\nrawHash: %s\nposHash: %s\nvalue: %lu\n",
pblock->nNonce.GetHex().c_str(), rawHash.GetHex().c_str(), posHash.GetHex().c_str(), value);
}
else
if (validHash)
{
if (slowflag == 0)
{