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prevent gaming sigTime too much on initial dsee

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UdjinM6 2015-03-01 18:51:30 +03:00
parent b2017ebefa
commit f4f3f6bd6a
1 changed files with 18 additions and 0 deletions
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18
src/masternodeman.cpp
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@ -481,6 +481,24 @@ void CMasternodeMan::ProcessMessage(CNode* pfrom, std::string& strCommand, CData
return; return;
} }
// verify that sig time is legit in past
// should be at least not earlier than block when 1000 DRK tx got MASTERNODE_MIN_CONFIRMATIONS
uint256 hashBlock = 0;
GetTransaction(vin.prevout.hash, tx, hashBlock, true);
map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
if (mi != mapBlockIndex.end() && (*mi).second)
{
CBlockIndex* pMNIndex = (*mi).second; // block for 1000 DRK tx -> 1 confirmation
CBlockIndex* pConfIndex = chainActive[pMNIndex->nHeight + MASTERNODE_MIN_CONFIRMATIONS - 1]; // block where tx got MASTERNODE_MIN_CONFIRMATIONS
if(pConfIndex->GetBlockTime() > sigTime)
{
LogPrintf("dsee - Bad sigTime %d for masternode %20s %105s (%i conf block is at %d)\n",
sigTime, addr.ToString(), vin.ToString(), MASTERNODE_MIN_CONFIRMATIONS, pConfIndex->GetBlockTime());
return;
}
}
// use this as a peer // use this as a peer
addrman.Add(CAddress(addr), pfrom->addr, 2*60*60); addrman.Add(CAddress(addr), pfrom->addr, 2*60*60);