void CMasternode::Check(bool forceCheck)
{
if(ShutdownRequested()) return;
if(!forceCheck && (GetTime() - lastTimeChecked < MASTERNODE_CHECK_SECONDS)) return;
lastTimeChecked = GetTime();
//once spent, stop doing the checks
if(activeState == MASTERNODE_VIN_SPENT) return;
if(lastPing.sigTime - sigTime < MASTERNODE_MIN_MNP_SECONDS){
activeState = MASTERNODE_PRE_ENABLED;
return;
}
if(!IsPingedWithin(MASTERNODE_REMOVAL_SECONDS)){
activeState = MASTERNODE_REMOVE;
return;
}
if(!IsPingedWithin(MASTERNODE_EXPIRATION_SECONDS)){
activeState = MASTERNODE_EXPIRED;
return;
}
if(!unitTest){
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) return;
if(!AcceptableInputs(mempool, state, CTransaction(tx), false, NULL)){
activeState = MASTERNODE_VIN_SPENT;
return;
}
}
}
activeState = MASTERNODE_ENABLED; // OK
}
void CAlphanode::Check()
{
if(ShutdownRequested()) return;
//TODO: Random segfault with this line removed
TRY_LOCK(cs_main, lockRecv);
if(!lockRecv) return;
//once spent, stop doing the checks
if(activeState == ALPHANODE_VIN_SPENT) return;
if(!UpdatedWithin(ALPHANODE_REMOVAL_SECONDS)){
activeState = ALPHANODE_REMOVE;
return;
}
if(!UpdatedWithin(ALPHANODE_EXPIRATION_SECONDS)){
activeState = ALPHANODE_EXPIRED;
return;
}
if(!unitTest){
CValidationState state;
CTransaction tx = CTransaction();
CTxOut vout = CTxOut(Params().DarkSendPoolMax(), darkSendPool.collateralPubKey);
tx.vin.push_back(vin);
tx.vout.push_back(vout);
if(!AcceptableInputs(mempool, tx, false, NULL)){
activeState = ALPHANODE_VIN_SPENT;
return;
}
}
activeState = ALPHANODE_ENABLED; // OK
}
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 enabled
if(pmn->IsEnabled()) 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;
}
void ProcessMessageMasternode(CNode* pfrom, std::string& strCommand, CDataStream& vRecv)
{
if (strCommand == "dsee") { //DarkSend Election Entry
if(fLiteMode) return; //disable all darksend/masternode related functionality
bool fIsInitialDownload = IsInitialBlockDownload();
if(fIsInitialDownload) return;
CTxIn vin;
CService addr;
CPubKey pubkey;
CPubKey pubkey2;
vector<unsigned char> vchSig;
int64_t sigTime;
int count;
int current;
int64_t lastUpdated;
int protocolVersion;
std::string strMessage;
// 70047 and greater
vRecv >> vin >> addr >> vchSig >> sigTime >> pubkey >> pubkey2 >> count >> current >> lastUpdated >> protocolVersion;
// make sure signature isn't in the future (past is OK)
if (sigTime > GetAdjustedTime() + 60 * 60) {
printf("dsee - Signature rejected, too far into the future %s\n", vin.ToString().c_str());
return;
}
bool isLocal = addr.IsRFC1918() || addr.IsLocal();
//if(Params().MineBlocksOnDemand()) isLocal = false;
std::string vchPubKey(pubkey.vchPubKey.begin(), pubkey.vchPubKey.end());
std::string vchPubKey2(pubkey2.vchPubKey.begin(), pubkey2.vchPubKey.end());
strMessage = addr.ToString() + boost::lexical_cast<std::string>(sigTime) + vchPubKey + vchPubKey2 + boost::lexical_cast<std::string>(protocolVersion);
if(protocolVersion < MIN_MN_PROTO_VERSION) {
printf("dsee - ignoring outdated masternode %s protocol version %d\n", vin.ToString().c_str(), protocolVersion);
return;
}
CScript pubkeyScript;
pubkeyScript =GetScriptForDestination(pubkey.GetID());
if(pubkeyScript.size() != 25) {
printf("dsee - pubkey the wrong size\n");
pfrom->Misbehaving(100);
return;
}
CScript pubkeyScript2;
pubkeyScript2 =GetScriptForDestination(pubkey2.GetID());
if(pubkeyScript2.size() != 25) {
printf("dsee - pubkey2 the wrong size\n");
pfrom->Misbehaving(100);
return;
}
std::string errorMessage = "";
if(!darkSendSigner.VerifyMessage(pubkey, vchSig, strMessage, errorMessage)){
printf("dsee - Got bad masternode address signature\n");
pfrom->Misbehaving(100);
return;
}
//search existing masternode list, this is where we update existing masternodes with new dsee broadcasts
LOCK(cs_masternodes);
BOOST_FOREACH(CMasterNode& mn, vecMasternodes) {
if(mn.vin.prevout == vin.prevout) {
// count == -1 when it's a new entry
// e.g. We don't want the entry relayed/time updated when we're syncing the list
// mn.pubkey = pubkey, IsVinAssociatedWithPubkey is validated once below,
// after that they just need to match
if(count == -1 && mn.pubkey == pubkey && !mn.UpdatedWithin(MASTERNODE_MIN_DSEE_SECONDS)){
mn.UpdateLastSeen();
if(mn.now < sigTime){ //take the newest entry
printf("dsee - Got updated entry for %s\n", addr.ToString().c_str());
mn.pubkey2 = pubkey2;
mn.now = sigTime;
mn.sig = vchSig;
mn.protocolVersion = protocolVersion;
mn.addr = addr;
RelayDarkSendElectionEntry(vin, addr, vchSig, sigTime, pubkey, pubkey2, count, current, lastUpdated, protocolVersion);
}
}
return;
}
}
// make sure the vout that was signed is related to the transaction that spawned the masternode
// - this is expensive, so it's only done once per masternode
if(!darkSendSigner.IsVinAssociatedWithPubkey(vin, pubkey)) {
printf("dsee - Got mismatched pubkey and vin\n");
pfrom->Misbehaving(100);
return;
}
if(fDebug) printf("dsee - Got NEW masternode entry %s\n", addr.ToString().c_str());
// make sure it's still unspent
// - this is checked later by .check() in many places and by ThreadCheckDarkSendPool()
CTransaction tx = CTransaction();
CTxOut vout = CTxOut(24999*COIN, darkSendPool.collateralPubKey);
tx.vin.push_back(vin);
tx.vout.push_back(vout);
//if(AcceptableInputs(mempool, state, tx)){
bool* pfMissingInputs = false;
if(AcceptableInputs(mempool, tx, false, pfMissingInputs)){
if(fDebug) printf("dsee - Accepted masternode entry %i %i\n", count, current);
if(GetInputAge(vin) < MASTERNODE_MIN_CONFIRMATIONS){
printf("dsee - Input must have least %d confirmations\n", MASTERNODE_MIN_CONFIRMATIONS);
pfrom->Misbehaving(20);
return;
}
// use this as a peer
addrman.Add(CAddress(addr), pfrom->addr, 2*60*60);
// add our masternode
CMasterNode mn(addr, vin, pubkey, vchSig, sigTime, pubkey2, protocolVersion);
mn.UpdateLastSeen(lastUpdated);
vecMasternodes.push_back(mn);
// if it matches our masternodeprivkey, then we've been remotely activated
if(pubkey2 == activeMasternode.pubKeyMasternode && protocolVersion == PROTOCOL_VERSION){
activeMasternode.EnableHotColdMasterNode(vin, addr);
}
if(count == -1 && !isLocal)
RelayDarkSendElectionEntry(vin, addr, vchSig, sigTime, pubkey, pubkey2, count, current, lastUpdated, protocolVersion);
} else {
printf("dsee - Rejected masternode entry %s\n", addr.ToString().c_str());
int nDoS = 0;
/* if (state.IsInvalid(nDoS))
{
printf("dsee - %s from %s %s was not accepted into the memory pool\n", tx.GetHash().ToString().c_str(),
pfrom->addr.ToString().c_str(), pfrom->cleanSubVer.c_str());
if (nDoS > 0)
pfrom->Misbehaving(nDoS);
}*/
}
}
else if (strCommand == "dseep") { //DarkSend Election Entry Ping