bool CMasternodePing::CheckAndUpdate(int& nDos, bool fRequireEnabled)
{
if (sigTime > GetAdjustedTime() + 60 * 60) {
LogPrintf("CMasternodePing::CheckAndUpdate - Signature rejected, too far into the future %s\n", vin.ToString());
nDos = 1;
return false;
}
if (sigTime <= GetAdjustedTime() - 60 * 60) {
LogPrintf("CMasternodePing::CheckAndUpdate - Signature rejected, too far into the past %s - %d %d \n", vin.ToString(), sigTime, GetAdjustedTime());
nDos = 1;
return false;
}
LogPrint("masternode", "CMasternodePing::CheckAndUpdate - New Ping - %s - %s - %lli\n", GetHash().ToString(), blockHash.ToString(), sigTime);
// see if we have this Masternode
CMasternode* pmn = mnodeman.Find(vin);
if(pmn != NULL && pmn->protocolVersion >= masternodePayments.GetMinMasternodePaymentsProto())
{
if (fRequireEnabled && !pmn->IsEnabled() && !pmn->IsPreEnabled()) return false;
// LogPrintf("mnping - Found corresponding mn for vin: %s\n", vin.ToString());
// update only if there is no known ping for this masternode or
// last ping was more then MASTERNODE_MIN_MNP_SECONDS-60 ago comparing to this one
if(!pmn->IsPingedWithin(MASTERNODE_MIN_MNP_SECONDS - 60, sigTime))
{
std::string strMessage = vin.ToString() + blockHash.ToString() + boost::lexical_cast<std::string>(sigTime);
std::string errorMessage = "";
if(!darkSendSigner.VerifyMessage(pmn->pubkey2, vchSig, strMessage, errorMessage))
{
LogPrintf("CMasternodePing::CheckAndUpdate - Got bad Masternode address signature %s\n", vin.ToString());
nDos = 33;
return false;
}
BlockMap::iterator mi = mapBlockIndex.find(blockHash);
if (mi != mapBlockIndex.end() && (*mi).second)
{
if((*mi).second->nHeight < chainActive.Height() - 24)
{
LogPrintf("CMasternodePing::CheckAndUpdate - Masternode %s block hash %s is too old\n", vin.ToString(), blockHash.ToString());
// Do nothing here (no Masternode update, no mnping relay)
// Let this node to be visible but fail to accept mnping
return false;
}
} else {
if (fDebug) LogPrintf("CMasternodePing::CheckAndUpdate - Masternode %s block hash %s is unknown\n", vin.ToString(), blockHash.ToString());
// maybe we stuck so we shouldn't ban this node, just fail to accept it
// TODO: or should we also request this block?
return false;
}
pmn->lastPing = *this;
//mnodeman.mapSeenMasternodeBroadcast.lastPing is probably outdated, so we'll update it
CMasternodeBroadcast mnb(*pmn);
uint256 hash = mnb.GetHash();
if(mnodeman.mapSeenMasternodeBroadcast.count(hash)) {
mnodeman.mapSeenMasternodeBroadcast[hash].lastPing = *this;
}
pmn->Check(true);
if(!pmn->IsEnabled()) return false;
LogPrint("masternode", "CMasternodePing::CheckAndUpdate - Masternode ping accepted, vin: %s\n", vin.ToString());
Relay();
return true;
}
LogPrint("masternode", "CMasternodePing::CheckAndUpdate - Masternode ping arrived too early, vin: %s\n", vin.ToString());
//nDos = 1; //disable, this is happening frequently and causing banned peers
return false;
}
LogPrint("masternode", "CMasternodePing::CheckAndUpdate - Couldn't find compatible Masternode entry, vin: %s\n", vin.ToString());
return false;
}
bool CMasternodeBroadcast::CheckInputsAndAdd(int& nDoS)
{
// we are a masternode with the same vin (i.e. already activated) and this mnb is ours (matches our Masternode privkey)
// so nothing to do here for us
if(fMasterNode && vin.prevout == activeMasternode.vin.prevout && pubkey2 == activeMasternode.pubKeyMasternode)
return true;
// search existing Masternode list
CMasternode* pmn = mnodeman.Find(vin);
if(pmn != NULL) {
// nothing to do here if we already know about this masternode and it's (pre)enabled
if(pmn->IsEnabled() || pmn->IsPreEnabled()) return true;
// if it's not enabled, remove old MN first and continue
else mnodeman.Remove(pmn->vin);
}
CValidationState state;
CMutableTransaction tx = CMutableTransaction();
CTxOut vout = CTxOut(999.99*COIN, darkSendPool.collateralPubKey);
tx.vin.push_back(vin);
tx.vout.push_back(vout);
{
TRY_LOCK(cs_main, lockMain);
if(!lockMain) {
// not mnb fault, let it to be checked again later
mnodeman.mapSeenMasternodeBroadcast.erase(GetHash());
masternodeSync.mapSeenSyncMNB.erase(GetHash());
return false;
}
if(!AcceptableInputs(mempool, state, CTransaction(tx), false, NULL)) {
//set nDos
state.IsInvalid(nDoS);
return false;
}
}
LogPrint("masternode", "mnb - Accepted Masternode entry\n");
if(GetInputAge(vin) < MASTERNODE_MIN_CONFIRMATIONS){
LogPrintf("mnb - Input must have at least %d confirmations\n", MASTERNODE_MIN_CONFIRMATIONS);
// maybe we miss few blocks, let this mnb to be checked again later
mnodeman.mapSeenMasternodeBroadcast.erase(GetHash());
masternodeSync.mapSeenSyncMNB.erase(GetHash());
return false;
}
// verify that sig time is legit in past
// should be at least not earlier than block when 1000 DASH tx got MASTERNODE_MIN_CONFIRMATIONS
uint256 hashBlock = 0;
CTransaction tx2;
GetTransaction(vin.prevout.hash, tx2, hashBlock, true);
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
if (mi != mapBlockIndex.end() && (*mi).second)
{
CBlockIndex* pMNIndex = (*mi).second; // block for 1000 DASH tx -> 1 confirmation
CBlockIndex* pConfIndex = chainActive[pMNIndex->nHeight + MASTERNODE_MIN_CONFIRMATIONS - 1]; // block where tx got MASTERNODE_MIN_CONFIRMATIONS
if(pConfIndex->GetBlockTime() > sigTime)
{
LogPrintf("mnb - 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 false;
}
}
LogPrintf("mnb - Got NEW Masternode entry - %s - %s - %s - %lli \n", GetHash().ToString(), addr.ToString(), vin.ToString(), sigTime);
CMasternode mn(*this);
mnodeman.Add(mn);
// if it matches our Masternode privkey, then we've been remotely activated
if(pubkey2 == activeMasternode.pubKeyMasternode && protocolVersion == PROTOCOL_VERSION){
activeMasternode.EnableHotColdMasterNode(vin, addr);
}
bool isLocal = addr.IsRFC1918() || addr.IsLocal();
if(Params().NetworkID() == CBaseChainParams::REGTEST) isLocal = false;
if(!isLocal) Relay();
return true;
}
