924 lines
36 KiB
C++
924 lines
36 KiB
C++
// Copyright (c) 2014-2017 The Dash Core developers
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// Copyright (c) 2021-2024 The NeoBytes Core developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "activemasternode.h"
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#include "consensus/validation.h"
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#include "darksend.h"
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#include "init.h"
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#include "governance.h"
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#include "masternode.h"
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#include "masternode-payments.h"
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#include "masternode-sync.h"
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#include "masternodeman.h"
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#include "util.h"
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#include <boost/lexical_cast.hpp>
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CMasternode::CMasternode() :
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vin(),
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addr(),
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pubKeyCollateralAddress(),
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pubKeyMasternode(),
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lastPing(),
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vchSig(),
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sigTime(GetAdjustedTime()),
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nLastDsq(0),
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nTimeLastChecked(0),
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nTimeLastPaid(0),
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nTimeLastWatchdogVote(0),
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nActiveState(MASTERNODE_ENABLED),
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nCacheCollateralBlock(0),
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nBlockLastPaid(0),
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nProtocolVersion(PROTOCOL_VERSION),
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nPoSeBanScore(0),
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nPoSeBanHeight(0),
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fAllowMixingTx(true),
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fUnitTest(false)
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{}
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CMasternode::CMasternode(CService addrNew, CTxIn vinNew, CPubKey pubKeyCollateralAddressNew, CPubKey pubKeyMasternodeNew, int nProtocolVersionIn) :
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vin(vinNew),
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addr(addrNew),
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pubKeyCollateralAddress(pubKeyCollateralAddressNew),
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pubKeyMasternode(pubKeyMasternodeNew),
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lastPing(),
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vchSig(),
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sigTime(GetAdjustedTime()),
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nLastDsq(0),
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nTimeLastChecked(0),
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nTimeLastPaid(0),
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nTimeLastWatchdogVote(0),
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nActiveState(MASTERNODE_ENABLED),
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nCacheCollateralBlock(0),
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nBlockLastPaid(0),
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nProtocolVersion(nProtocolVersionIn),
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nPoSeBanScore(0),
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nPoSeBanHeight(0),
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fAllowMixingTx(true),
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fUnitTest(false)
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{}
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CMasternode::CMasternode(const CMasternode& other) :
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vin(other.vin),
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addr(other.addr),
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pubKeyCollateralAddress(other.pubKeyCollateralAddress),
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pubKeyMasternode(other.pubKeyMasternode),
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lastPing(other.lastPing),
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vchSig(other.vchSig),
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sigTime(other.sigTime),
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nLastDsq(other.nLastDsq),
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nTimeLastChecked(other.nTimeLastChecked),
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nTimeLastPaid(other.nTimeLastPaid),
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nTimeLastWatchdogVote(other.nTimeLastWatchdogVote),
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nActiveState(other.nActiveState),
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nCacheCollateralBlock(other.nCacheCollateralBlock),
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nBlockLastPaid(other.nBlockLastPaid),
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nProtocolVersion(other.nProtocolVersion),
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nPoSeBanScore(other.nPoSeBanScore),
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nPoSeBanHeight(other.nPoSeBanHeight),
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fAllowMixingTx(other.fAllowMixingTx),
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fUnitTest(other.fUnitTest)
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{}
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CMasternode::CMasternode(const CMasternodeBroadcast& mnb) :
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vin(mnb.vin),
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addr(mnb.addr),
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pubKeyCollateralAddress(mnb.pubKeyCollateralAddress),
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pubKeyMasternode(mnb.pubKeyMasternode),
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lastPing(mnb.lastPing),
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vchSig(mnb.vchSig),
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sigTime(mnb.sigTime),
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nLastDsq(0),
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nTimeLastChecked(0),
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nTimeLastPaid(0),
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nTimeLastWatchdogVote(mnb.sigTime),
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nActiveState(mnb.nActiveState),
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nCacheCollateralBlock(0),
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nBlockLastPaid(0),
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nProtocolVersion(mnb.nProtocolVersion),
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nPoSeBanScore(0),
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nPoSeBanHeight(0),
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fAllowMixingTx(true),
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fUnitTest(false)
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{}
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//
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// When a new masternode broadcast is sent, update our information
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//
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bool CMasternode::UpdateFromNewBroadcast(CMasternodeBroadcast& mnb)
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{
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if(mnb.sigTime <= sigTime && !mnb.fRecovery) return false;
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pubKeyMasternode = mnb.pubKeyMasternode;
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sigTime = mnb.sigTime;
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vchSig = mnb.vchSig;
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nProtocolVersion = mnb.nProtocolVersion;
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addr = mnb.addr;
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nPoSeBanScore = 0;
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nPoSeBanHeight = 0;
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nTimeLastChecked = 0;
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int nDos = 0;
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if(mnb.lastPing == CMasternodePing() || (mnb.lastPing != CMasternodePing() && mnb.lastPing.CheckAndUpdate(this, true, nDos))) {
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lastPing = mnb.lastPing;
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mnodeman.mapSeenMasternodePing.insert(std::make_pair(lastPing.GetHash(), lastPing));
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}
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// if it matches our Masternode privkey...
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if(fMasterNode && pubKeyMasternode == activeMasternode.pubKeyMasternode) {
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nPoSeBanScore = -MASTERNODE_POSE_BAN_MAX_SCORE;
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if(nProtocolVersion == PROTOCOL_VERSION) {
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// ... and PROTOCOL_VERSION, then we've been remotely activated ...
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activeMasternode.ManageState();
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} else {
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// ... otherwise we need to reactivate our node, do not add it to the list and do not relay
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// but also do not ban the node we get this message from
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LogPrintf("CMasternode::UpdateFromNewBroadcast -- wrong PROTOCOL_VERSION, re-activate your MN: message nProtocolVersion=%d PROTOCOL_VERSION=%d\n", nProtocolVersion, PROTOCOL_VERSION);
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return false;
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}
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}
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return true;
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}
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//
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// Deterministically calculate a given "score" for a Masternode depending on how close it's hash is to
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// the proof of work for that block. The further away they are the better, the furthest will win the election
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// and get paid this block
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//
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arith_uint256 CMasternode::CalculateScore(const uint256& blockHash)
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{
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uint256 aux = ArithToUint256(UintToArith256(vin.prevout.hash) + vin.prevout.n);
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CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
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ss << blockHash;
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arith_uint256 hash2 = UintToArith256(ss.GetHash());
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CHashWriter ss2(SER_GETHASH, PROTOCOL_VERSION);
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ss2 << blockHash;
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ss2 << aux;
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arith_uint256 hash3 = UintToArith256(ss2.GetHash());
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return (hash3 > hash2 ? hash3 - hash2 : hash2 - hash3);
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}
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void CMasternode::Check(bool fForce)
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{
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LOCK(cs);
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if(ShutdownRequested()) return;
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if(!fForce && (GetTime() - nTimeLastChecked < MASTERNODE_CHECK_SECONDS)) return;
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nTimeLastChecked = GetTime();
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state\n", vin.prevout.ToStringShort(), GetStateString());
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//once spent, stop doing the checks
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if(IsOutpointSpent()) return;
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int nHeight = 0;
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if(!fUnitTest) {
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TRY_LOCK(cs_main, lockMain);
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if(!lockMain) return;
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CCoins coins;
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if(!pcoinsTip->GetCoins(vin.prevout.hash, coins) ||
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(unsigned int)vin.prevout.n>=coins.vout.size() ||
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coins.vout[vin.prevout.n].IsNull()) {
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nActiveState = MASTERNODE_OUTPOINT_SPENT;
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LogPrint("masternode", "CMasternode::Check -- Failed to find Masternode UTXO, masternode=%s\n", vin.prevout.ToStringShort());
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return;
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}
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nHeight = chainActive.Height();
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}
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if(IsPoSeBanned()) {
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if(nHeight < nPoSeBanHeight) return; // too early?
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// Otherwise give it a chance to proceed further to do all the usual checks and to change its state.
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// Masternode still will be on the edge and can be banned back easily if it keeps ignoring mnverify
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// or connect attempts. Will require few mnverify messages to strengthen its position in mn list.
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LogPrintf("CMasternode::Check -- Masternode %s is unbanned and back in list now\n", vin.prevout.ToStringShort());
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DecreasePoSeBanScore();
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} else if(nPoSeBanScore >= MASTERNODE_POSE_BAN_MAX_SCORE) {
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nActiveState = MASTERNODE_POSE_BAN;
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// ban for the whole payment cycle
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nPoSeBanHeight = nHeight + mnodeman.size();
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LogPrintf("CMasternode::Check -- Masternode %s is banned till block %d now\n", vin.prevout.ToStringShort(), nPoSeBanHeight);
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return;
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}
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int nActiveStatePrev = nActiveState;
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bool fOurMasternode = fMasterNode && activeMasternode.pubKeyMasternode == pubKeyMasternode;
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// masternode doesn't meet payment protocol requirements ...
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bool fRequireUpdate = nProtocolVersion < mnpayments.GetMinMasternodePaymentsProto() ||
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// or it's our own node and we just updated it to the new protocol but we are still waiting for activation ...
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(fOurMasternode && nProtocolVersion < PROTOCOL_VERSION);
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if(fRequireUpdate) {
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nActiveState = MASTERNODE_UPDATE_REQUIRED;
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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return;
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}
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// keep old masternodes on start, give them a chance to receive updates...
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bool fWaitForPing = !masternodeSync.IsMasternodeListSynced() && !IsPingedWithin(MASTERNODE_MIN_MNP_SECONDS);
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if(fWaitForPing && !fOurMasternode) {
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// ...but if it was already expired before the initial check - return right away
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if(IsExpired() || IsWatchdogExpired() || IsNewStartRequired()) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state, waiting for ping\n", vin.prevout.ToStringShort(), GetStateString());
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return;
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}
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}
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// don't expire if we are still in "waiting for ping" mode unless it's our own masternode
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if(!fWaitForPing || fOurMasternode) {
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if(!IsPingedWithin(MASTERNODE_NEW_START_REQUIRED_SECONDS)) {
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nActiveState = MASTERNODE_NEW_START_REQUIRED;
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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return;
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}
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bool fWatchdogActive = masternodeSync.IsSynced() && mnodeman.IsWatchdogActive();
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bool fWatchdogExpired = (fWatchdogActive && ((GetTime() - nTimeLastWatchdogVote) > MASTERNODE_WATCHDOG_MAX_SECONDS));
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LogPrint("masternode", "CMasternode::Check -- outpoint=%s, nTimeLastWatchdogVote=%d, GetTime()=%d, fWatchdogExpired=%d\n",
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vin.prevout.ToStringShort(), nTimeLastWatchdogVote, GetTime(), fWatchdogExpired);
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if(fWatchdogExpired) {
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nActiveState = MASTERNODE_WATCHDOG_EXPIRED;
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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return;
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}
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if(!IsPingedWithin(MASTERNODE_EXPIRATION_SECONDS)) {
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nActiveState = MASTERNODE_EXPIRED;
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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return;
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}
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}
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if(lastPing.sigTime - sigTime < MASTERNODE_MIN_MNP_SECONDS) {
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nActiveState = MASTERNODE_PRE_ENABLED;
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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return;
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}
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nActiveState = MASTERNODE_ENABLED; // OK
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if(nActiveStatePrev != nActiveState) {
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LogPrint("masternode", "CMasternode::Check -- Masternode %s is in %s state now\n", vin.prevout.ToStringShort(), GetStateString());
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}
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}
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bool CMasternode::IsValidNetAddr()
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{
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return IsValidNetAddr(addr);
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}
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bool CMasternode::IsValidNetAddr(CService addrIn)
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{
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// TODO: regtest is fine with any addresses for now,
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// should probably be a bit smarter if one day we start to implement tests for this
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return Params().NetworkIDString() == CBaseChainParams::REGTEST ||
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(addrIn.IsIPv4() && IsReachable(addrIn) && addrIn.IsRoutable());
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}
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masternode_info_t CMasternode::GetInfo()
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{
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masternode_info_t info;
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info.vin = vin;
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info.addr = addr;
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info.pubKeyCollateralAddress = pubKeyCollateralAddress;
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info.pubKeyMasternode = pubKeyMasternode;
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info.sigTime = sigTime;
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info.nLastDsq = nLastDsq;
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info.nTimeLastChecked = nTimeLastChecked;
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info.nTimeLastPaid = nTimeLastPaid;
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info.nTimeLastWatchdogVote = nTimeLastWatchdogVote;
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info.nTimeLastPing = lastPing.sigTime;
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info.nActiveState = nActiveState;
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info.nProtocolVersion = nProtocolVersion;
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info.fInfoValid = true;
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return info;
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}
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std::string CMasternode::StateToString(int nStateIn)
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{
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switch(nStateIn) {
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case MASTERNODE_PRE_ENABLED: return "PRE_ENABLED";
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case MASTERNODE_ENABLED: return "ENABLED";
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case MASTERNODE_EXPIRED: return "EXPIRED";
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case MASTERNODE_OUTPOINT_SPENT: return "OUTPOINT_SPENT";
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case MASTERNODE_UPDATE_REQUIRED: return "UPDATE_REQUIRED";
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case MASTERNODE_WATCHDOG_EXPIRED: return "WATCHDOG_EXPIRED";
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case MASTERNODE_NEW_START_REQUIRED: return "NEW_START_REQUIRED";
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case MASTERNODE_POSE_BAN: return "POSE_BAN";
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default: return "UNKNOWN";
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}
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}
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std::string CMasternode::GetStateString() const
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{
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return StateToString(nActiveState);
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}
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std::string CMasternode::GetStatus() const
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{
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// TODO: return smth a bit more human readable here
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return GetStateString();
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}
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int CMasternode::GetCollateralAge()
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{
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int nHeight;
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{
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TRY_LOCK(cs_main, lockMain);
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if(!lockMain || !chainActive.Tip()) return -1;
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nHeight = chainActive.Height();
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}
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if (nCacheCollateralBlock == 0) {
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int nInputAge = GetInputAge(vin);
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if(nInputAge > 0) {
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nCacheCollateralBlock = nHeight - nInputAge;
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} else {
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return nInputAge;
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}
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}
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return nHeight - nCacheCollateralBlock;
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}
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void CMasternode::UpdateLastPaid(const CBlockIndex *pindex, int nMaxBlocksToScanBack)
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{
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if(!pindex) return;
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const CBlockIndex *BlockReading = pindex;
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CScript mnpayee = GetScriptForDestination(pubKeyCollateralAddress.GetID());
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// LogPrint("masternode", "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s\n", vin.prevout.ToStringShort());
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LOCK(cs_mapMasternodeBlocks);
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for (int i = 0; BlockReading && BlockReading->nHeight > nBlockLastPaid && i < nMaxBlocksToScanBack; i++) {
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if(mnpayments.mapMasternodeBlocks.count(BlockReading->nHeight) &&
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mnpayments.mapMasternodeBlocks[BlockReading->nHeight].HasPayeeWithVotes(mnpayee, 2))
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{
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CBlock block;
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if(!ReadBlockFromDisk(block, BlockReading, Params().GetConsensus())) // shouldn't really happen
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continue;
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CAmount nMasternodePayment = GetMasternodePayment(BlockReading->nHeight, block.vtx[0].GetValueOut());
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BOOST_FOREACH(CTxOut txout, block.vtx[0].vout)
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if(mnpayee == txout.scriptPubKey && nMasternodePayment == txout.nValue) {
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nBlockLastPaid = BlockReading->nHeight;
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nTimeLastPaid = BlockReading->nTime;
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LogPrint("masternode", "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s -- found new %d\n", vin.prevout.ToStringShort(), nBlockLastPaid);
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return;
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}
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}
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if (BlockReading->pprev == NULL) { assert(BlockReading); break; }
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BlockReading = BlockReading->pprev;
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}
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// Last payment for this masternode wasn't found in latest mnpayments blocks
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// or it was found in mnpayments blocks but wasn't found in the blockchain.
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// LogPrint("masternode", "CMasternode::UpdateLastPaidBlock -- searching for block with payment to %s -- keeping old %d\n", vin.prevout.ToStringShort(), nBlockLastPaid);
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}
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bool CMasternodeBroadcast::Create(std::string strService, std::string strKeyMasternode, std::string strTxHash, std::string strOutputIndex, std::string& strErrorRet, CMasternodeBroadcast &mnbRet, bool fOffline)
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{
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CTxIn txin;
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CPubKey pubKeyCollateralAddressNew;
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CKey keyCollateralAddressNew;
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CPubKey pubKeyMasternodeNew;
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CKey keyMasternodeNew;
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//need correct blocks to send ping
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if(!fOffline && !masternodeSync.IsBlockchainSynced()) {
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strErrorRet = "Sync in progress. Must wait until sync is complete to start Masternode";
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LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
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return false;
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}
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if(!darkSendSigner.GetKeysFromSecret(strKeyMasternode, keyMasternodeNew, pubKeyMasternodeNew)) {
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strErrorRet = strprintf("Invalid masternode key %s", strKeyMasternode);
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LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
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return false;
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}
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if(!pwalletMain->GetMasternodeVinAndKeys(txin, pubKeyCollateralAddressNew, keyCollateralAddressNew, strTxHash, strOutputIndex)) {
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strErrorRet = strprintf("Could not allocate txin %s:%s for masternode %s", strTxHash, strOutputIndex, strService);
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LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
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return false;
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}
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CService service = CService(strService);
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int mainnetDefaultPort = Params(CBaseChainParams::MAIN).GetDefaultPort();
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if(Params().NetworkIDString() == CBaseChainParams::MAIN) {
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if(service.GetPort() != mainnetDefaultPort) {
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strErrorRet = strprintf("Invalid port %u for masternode %s, only %d is supported on mainnet.", service.GetPort(), strService, mainnetDefaultPort);
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LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
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return false;
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}
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} else if (service.GetPort() == mainnetDefaultPort) {
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strErrorRet = strprintf("Invalid port %u for masternode %s, %d is the only supported on mainnet.", service.GetPort(), strService, mainnetDefaultPort);
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LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
|
|
return false;
|
|
}
|
|
|
|
return Create(txin, CService(strService), keyCollateralAddressNew, pubKeyCollateralAddressNew, keyMasternodeNew, pubKeyMasternodeNew, strErrorRet, mnbRet);
|
|
}
|
|
|
|
bool CMasternodeBroadcast::Create(CTxIn txin, CService service, CKey keyCollateralAddressNew, CPubKey pubKeyCollateralAddressNew, CKey keyMasternodeNew, CPubKey pubKeyMasternodeNew, std::string &strErrorRet, CMasternodeBroadcast &mnbRet)
|
|
{
|
|
// wait for reindex and/or import to finish
|
|
if (fImporting || fReindex) return false;
|
|
|
|
LogPrint("masternode", "CMasternodeBroadcast::Create -- pubKeyCollateralAddressNew = %s, pubKeyMasternodeNew.GetID() = %s\n",
|
|
CBitcoinAddress(pubKeyCollateralAddressNew.GetID()).ToString(),
|
|
pubKeyMasternodeNew.GetID().ToString());
|
|
|
|
|
|
CMasternodePing mnp(txin);
|
|
if(!mnp.Sign(keyMasternodeNew, pubKeyMasternodeNew)) {
|
|
strErrorRet = strprintf("Failed to sign ping, masternode=%s", txin.prevout.ToStringShort());
|
|
LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
|
|
mnbRet = CMasternodeBroadcast();
|
|
return false;
|
|
}
|
|
|
|
mnbRet = CMasternodeBroadcast(service, txin, pubKeyCollateralAddressNew, pubKeyMasternodeNew, PROTOCOL_VERSION);
|
|
|
|
if(!mnbRet.IsValidNetAddr()) {
|
|
strErrorRet = strprintf("Invalid IP address, masternode=%s", txin.prevout.ToStringShort());
|
|
LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
|
|
mnbRet = CMasternodeBroadcast();
|
|
return false;
|
|
}
|
|
|
|
mnbRet.lastPing = mnp;
|
|
if(!mnbRet.Sign(keyCollateralAddressNew)) {
|
|
strErrorRet = strprintf("Failed to sign broadcast, masternode=%s", txin.prevout.ToStringShort());
|
|
LogPrintf("CMasternodeBroadcast::Create -- %s\n", strErrorRet);
|
|
mnbRet = CMasternodeBroadcast();
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBroadcast::SimpleCheck(int& nDos)
|
|
{
|
|
nDos = 0;
|
|
|
|
// make sure addr is valid
|
|
if(!IsValidNetAddr()) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- Invalid addr, rejected: masternode=%s addr=%s\n",
|
|
vin.prevout.ToStringShort(), addr.ToString());
|
|
return false;
|
|
}
|
|
|
|
// make sure signature isn't in the future (past is OK)
|
|
if (sigTime > GetAdjustedTime() + 60 * 60) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- Signature rejected, too far into the future: masternode=%s\n", vin.prevout.ToStringShort());
|
|
nDos = 1;
|
|
return false;
|
|
}
|
|
|
|
// empty ping or incorrect sigTime/unknown blockhash
|
|
if(lastPing == CMasternodePing() || !lastPing.SimpleCheck(nDos)) {
|
|
// one of us is probably forked or smth, just mark it as expired and check the rest of the rules
|
|
nActiveState = MASTERNODE_EXPIRED;
|
|
}
|
|
|
|
if(nProtocolVersion < mnpayments.GetMinMasternodePaymentsProto()) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- ignoring outdated Masternode: masternode=%s nProtocolVersion=%d\n", vin.prevout.ToStringShort(), nProtocolVersion);
|
|
return false;
|
|
}
|
|
|
|
CScript pubkeyScript;
|
|
pubkeyScript = GetScriptForDestination(pubKeyCollateralAddress.GetID());
|
|
|
|
if(pubkeyScript.size() != 25) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- pubKeyCollateralAddress has the wrong size\n");
|
|
nDos = 100;
|
|
return false;
|
|
}
|
|
|
|
CScript pubkeyScript2;
|
|
pubkeyScript2 = GetScriptForDestination(pubKeyMasternode.GetID());
|
|
|
|
if(pubkeyScript2.size() != 25) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- pubKeyMasternode has the wrong size\n");
|
|
nDos = 100;
|
|
return false;
|
|
}
|
|
|
|
if(!vin.scriptSig.empty()) {
|
|
LogPrintf("CMasternodeBroadcast::SimpleCheck -- Ignore Not Empty ScriptSig %s\n",vin.ToString());
|
|
nDos = 100;
|
|
return false;
|
|
}
|
|
|
|
int mainnetDefaultPort = Params(CBaseChainParams::MAIN).GetDefaultPort();
|
|
if(Params().NetworkIDString() == CBaseChainParams::MAIN) {
|
|
if(addr.GetPort() != mainnetDefaultPort) return false;
|
|
} else if(addr.GetPort() == mainnetDefaultPort) return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBroadcast::Update(CMasternode* pmn, int& nDos)
|
|
{
|
|
nDos = 0;
|
|
|
|
if(pmn->sigTime == sigTime && !fRecovery) {
|
|
// mapSeenMasternodeBroadcast in CMasternodeMan::CheckMnbAndUpdateMasternodeList should filter legit duplicates
|
|
// but this still can happen if we just started, which is ok, just do nothing here.
|
|
return false;
|
|
}
|
|
|
|
// this broadcast is older than the one that we already have - it's bad and should never happen
|
|
// unless someone is doing something fishy
|
|
if(pmn->sigTime > sigTime) {
|
|
LogPrintf("CMasternodeBroadcast::Update -- Bad sigTime %d (existing broadcast is at %d) for Masternode %s %s\n",
|
|
sigTime, pmn->sigTime, vin.prevout.ToStringShort(), addr.ToString());
|
|
return false;
|
|
}
|
|
|
|
pmn->Check();
|
|
|
|
// masternode is banned by PoSe
|
|
if(pmn->IsPoSeBanned()) {
|
|
LogPrintf("CMasternodeBroadcast::Update -- Banned by PoSe, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
|
|
// IsVnAssociatedWithPubkey is validated once in CheckOutpoint, after that they just need to match
|
|
if(pmn->pubKeyCollateralAddress != pubKeyCollateralAddress) {
|
|
LogPrintf("CMasternodeBroadcast::Update -- Got mismatched pubKeyCollateralAddress and vin\n");
|
|
nDos = 33;
|
|
return false;
|
|
}
|
|
|
|
if (!CheckSignature(nDos)) {
|
|
LogPrintf("CMasternodeBroadcast::Update -- CheckSignature() failed, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
|
|
// if ther was no masternode broadcast recently or if it matches our Masternode privkey...
|
|
if(!pmn->IsBroadcastedWithin(MASTERNODE_MIN_MNB_SECONDS) || (fMasterNode && pubKeyMasternode == activeMasternode.pubKeyMasternode)) {
|
|
// take the newest entry
|
|
LogPrintf("CMasternodeBroadcast::Update -- Got UPDATED Masternode entry: addr=%s\n", addr.ToString());
|
|
if(pmn->UpdateFromNewBroadcast((*this))) {
|
|
pmn->Check();
|
|
Relay();
|
|
}
|
|
masternodeSync.AddedMasternodeList();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBroadcast::CheckOutpoint(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 && pubKeyMasternode == activeMasternode.pubKeyMasternode) {
|
|
return false;
|
|
}
|
|
|
|
if (!CheckSignature(nDos)) {
|
|
LogPrintf("CMasternodeBroadcast::CheckOutpoint -- CheckSignature() failed, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
|
|
{
|
|
TRY_LOCK(cs_main, lockMain);
|
|
if(!lockMain) {
|
|
// not mnb fault, let it to be checked again later
|
|
LogPrint("masternode", "CMasternodeBroadcast::CheckOutpoint -- Failed to aquire lock, addr=%s", addr.ToString());
|
|
mnodeman.mapSeenMasternodeBroadcast.erase(GetHash());
|
|
return false;
|
|
}
|
|
|
|
CCoins coins;
|
|
if(!pcoinsTip->GetCoins(vin.prevout.hash, coins) ||
|
|
(unsigned int)vin.prevout.n>=coins.vout.size() ||
|
|
coins.vout[vin.prevout.n].IsNull()) {
|
|
LogPrint("masternode", "CMasternodeBroadcast::CheckOutpoint -- Failed to find Masternode UTXO, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
if(coins.vout[vin.prevout.n].nValue != 1000 * COIN) {
|
|
LogPrint("masternode", "CMasternodeBroadcast::CheckOutpoint -- Masternode UTXO should have 1000 NBY, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
if(chainActive.Height() - coins.nHeight + 1 < Params().GetConsensus().nMasternodeMinimumConfirmations) {
|
|
LogPrintf("CMasternodeBroadcast::CheckOutpoint -- Masternode UTXO must have at least %d confirmations, masternode=%s\n",
|
|
Params().GetConsensus().nMasternodeMinimumConfirmations, vin.prevout.ToStringShort());
|
|
// maybe we miss few blocks, let this mnb to be checked again later
|
|
mnodeman.mapSeenMasternodeBroadcast.erase(GetHash());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
LogPrint("masternode", "CMasternodeBroadcast::CheckOutpoint -- Masternode UTXO verified\n");
|
|
|
|
// 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, pubKeyCollateralAddress)) {
|
|
LogPrintf("CMasternodeMan::CheckOutpoint -- Got mismatched pubKeyCollateralAddress and vin\n");
|
|
nDos = 33;
|
|
return false;
|
|
}
|
|
|
|
// verify that sig time is legit in past
|
|
// should be at least not earlier than block when 1000 NBY tx got nMasternodeMinimumConfirmations
|
|
uint256 hashBlock = uint256();
|
|
CTransaction tx2;
|
|
GetTransaction(vin.prevout.hash, tx2, Params().GetConsensus(), hashBlock, true);
|
|
{
|
|
LOCK(cs_main);
|
|
BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
|
|
if (mi != mapBlockIndex.end() && (*mi).second) {
|
|
CBlockIndex* pMNIndex = (*mi).second; // block for 1000 NBY tx -> 1 confirmation
|
|
CBlockIndex* pConfIndex = chainActive[pMNIndex->nHeight + Params().GetConsensus().nMasternodeMinimumConfirmations - 1]; // block where tx got nMasternodeMinimumConfirmations
|
|
if(pConfIndex->GetBlockTime() > sigTime) {
|
|
LogPrintf("CMasternodeBroadcast::CheckOutpoint -- Bad sigTime %d (%d conf block is at %d) for Masternode %s %s\n",
|
|
sigTime, Params().GetConsensus().nMasternodeMinimumConfirmations, pConfIndex->GetBlockTime(), vin.prevout.ToStringShort(), addr.ToString());
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBroadcast::Sign(CKey& keyCollateralAddress)
|
|
{
|
|
std::string strError;
|
|
std::string strMessage;
|
|
|
|
sigTime = GetAdjustedTime();
|
|
|
|
strMessage = addr.ToString(false) + boost::lexical_cast<std::string>(sigTime) +
|
|
pubKeyCollateralAddress.GetID().ToString() + pubKeyMasternode.GetID().ToString() +
|
|
boost::lexical_cast<std::string>(nProtocolVersion);
|
|
|
|
if(!darkSendSigner.SignMessage(strMessage, vchSig, keyCollateralAddress)) {
|
|
LogPrintf("CMasternodeBroadcast::Sign -- SignMessage() failed\n");
|
|
return false;
|
|
}
|
|
|
|
if(!darkSendSigner.VerifyMessage(pubKeyCollateralAddress, vchSig, strMessage, strError)) {
|
|
LogPrintf("CMasternodeBroadcast::Sign -- VerifyMessage() failed, error: %s\n", strError);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodeBroadcast::CheckSignature(int& nDos)
|
|
{
|
|
std::string strMessage;
|
|
std::string strError = "";
|
|
nDos = 0;
|
|
|
|
strMessage = addr.ToString(false) + boost::lexical_cast<std::string>(sigTime) +
|
|
pubKeyCollateralAddress.GetID().ToString() + pubKeyMasternode.GetID().ToString() +
|
|
boost::lexical_cast<std::string>(nProtocolVersion);
|
|
|
|
LogPrint("masternode", "CMasternodeBroadcast::CheckSignature -- strMessage: %s pubKeyCollateralAddress address: %s sig: %s\n", strMessage, CBitcoinAddress(pubKeyCollateralAddress.GetID()).ToString(), EncodeBase64(&vchSig[0], vchSig.size()));
|
|
|
|
if(!darkSendSigner.VerifyMessage(pubKeyCollateralAddress, vchSig, strMessage, strError)){
|
|
LogPrintf("CMasternodeBroadcast::CheckSignature -- Got bad Masternode announce signature, error: %s\n", strError);
|
|
nDos = 100;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CMasternodeBroadcast::Relay()
|
|
{
|
|
CInv inv(MSG_MASTERNODE_ANNOUNCE, GetHash());
|
|
RelayInv(inv);
|
|
}
|
|
|
|
CMasternodePing::CMasternodePing(CTxIn& vinNew)
|
|
{
|
|
LOCK(cs_main);
|
|
if (!chainActive.Tip() || chainActive.Height() < 12) return;
|
|
|
|
vin = vinNew;
|
|
blockHash = chainActive[chainActive.Height() - 12]->GetBlockHash();
|
|
sigTime = GetAdjustedTime();
|
|
vchSig = std::vector<unsigned char>();
|
|
}
|
|
|
|
bool CMasternodePing::Sign(CKey& keyMasternode, CPubKey& pubKeyMasternode)
|
|
{
|
|
std::string strError;
|
|
std::string strMasterNodeSignMessage;
|
|
|
|
sigTime = GetAdjustedTime();
|
|
std::string strMessage = vin.ToString() + blockHash.ToString() + boost::lexical_cast<std::string>(sigTime);
|
|
|
|
if(!darkSendSigner.SignMessage(strMessage, vchSig, keyMasternode)) {
|
|
LogPrintf("CMasternodePing::Sign -- SignMessage() failed\n");
|
|
return false;
|
|
}
|
|
|
|
if(!darkSendSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, strError)) {
|
|
LogPrintf("CMasternodePing::Sign -- VerifyMessage() failed, error: %s\n", strError);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodePing::CheckSignature(CPubKey& pubKeyMasternode, int &nDos)
|
|
{
|
|
std::string strMessage = vin.ToString() + blockHash.ToString() + boost::lexical_cast<std::string>(sigTime);
|
|
std::string strError = "";
|
|
nDos = 0;
|
|
|
|
if(!darkSendSigner.VerifyMessage(pubKeyMasternode, vchSig, strMessage, strError)) {
|
|
LogPrintf("CMasternodePing::CheckSignature -- Got bad Masternode ping signature, masternode=%s, error: %s\n", vin.prevout.ToStringShort(), strError);
|
|
nDos = 33;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodePing::SimpleCheck(int& nDos)
|
|
{
|
|
// don't ban by default
|
|
nDos = 0;
|
|
|
|
if (sigTime > GetAdjustedTime() + 60 * 60) {
|
|
LogPrintf("CMasternodePing::SimpleCheck -- Signature rejected, too far into the future, masternode=%s\n", vin.prevout.ToStringShort());
|
|
nDos = 1;
|
|
return false;
|
|
}
|
|
|
|
{
|
|
LOCK(cs_main);
|
|
BlockMap::iterator mi = mapBlockIndex.find(blockHash);
|
|
if (mi == mapBlockIndex.end()) {
|
|
LogPrint("masternode", "CMasternodePing::SimpleCheck -- Masternode ping is invalid, unknown block hash: masternode=%s blockHash=%s\n", vin.prevout.ToStringShort(), blockHash.ToString());
|
|
// maybe we stuck or forked so we shouldn't ban this node, just fail to accept this ping
|
|
// TODO: or should we also request this block?
|
|
return false;
|
|
}
|
|
}
|
|
LogPrint("masternode", "CMasternodePing::SimpleCheck -- Masternode ping verified: masternode=%s blockHash=%s sigTime=%d\n", vin.prevout.ToStringShort(), blockHash.ToString(), sigTime);
|
|
return true;
|
|
}
|
|
|
|
bool CMasternodePing::CheckAndUpdate(CMasternode* pmn, bool fFromNewBroadcast, int& nDos)
|
|
{
|
|
// don't ban by default
|
|
nDos = 0;
|
|
|
|
if (!SimpleCheck(nDos)) {
|
|
return false;
|
|
}
|
|
|
|
if (pmn == NULL) {
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- Couldn't find Masternode entry, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
|
|
if(!fFromNewBroadcast) {
|
|
if (pmn->IsUpdateRequired()) {
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- masternode protocol is outdated, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
|
|
if (pmn->IsNewStartRequired()) {
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- masternode is completely expired, new start is required, masternode=%s\n", vin.prevout.ToStringShort());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
{
|
|
LOCK(cs_main);
|
|
BlockMap::iterator mi = mapBlockIndex.find(blockHash);
|
|
if ((*mi).second && (*mi).second->nHeight < chainActive.Height() - 24) {
|
|
LogPrintf("CMasternodePing::CheckAndUpdate -- Masternode ping is invalid, block hash is too old: masternode=%s blockHash=%s\n", vin.prevout.ToStringShort(), blockHash.ToString());
|
|
// nDos = 1;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- New ping: masternode=%s blockHash=%s sigTime=%d\n", vin.prevout.ToStringShort(), blockHash.ToString(), sigTime);
|
|
|
|
// LogPrintf("mnping - Found corresponding mn for vin: %s\n", vin.prevout.ToStringShort());
|
|
// 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)) {
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- Masternode ping arrived too early, masternode=%s\n", vin.prevout.ToStringShort());
|
|
//nDos = 1; //disable, this is happening frequently and causing banned peers
|
|
return false;
|
|
}
|
|
|
|
if (!CheckSignature(pmn->pubKeyMasternode, nDos)) return false;
|
|
|
|
// so, ping seems to be ok
|
|
|
|
// if we are still syncing and there was no known ping for this mn for quite a while
|
|
// (NOTE: assuming that MASTERNODE_EXPIRATION_SECONDS/2 should be enough to finish mn list sync)
|
|
if(!masternodeSync.IsMasternodeListSynced() && !pmn->IsPingedWithin(MASTERNODE_EXPIRATION_SECONDS/2)) {
|
|
// let's bump sync timeout
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- bumping sync timeout, masternode=%s\n", vin.prevout.ToStringShort());
|
|
masternodeSync.AddedMasternodeList();
|
|
}
|
|
|
|
// let's store this ping as the last one
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- Masternode ping accepted, masternode=%s\n", vin.prevout.ToStringShort());
|
|
pmn->lastPing = *this;
|
|
|
|
// and update mnodeman.mapSeenMasternodeBroadcast.lastPing which is probably outdated
|
|
CMasternodeBroadcast mnb(*pmn);
|
|
uint256 hash = mnb.GetHash();
|
|
if (mnodeman.mapSeenMasternodeBroadcast.count(hash)) {
|
|
mnodeman.mapSeenMasternodeBroadcast[hash].second.lastPing = *this;
|
|
}
|
|
|
|
pmn->Check(true); // force update, ignoring cache
|
|
if (!pmn->IsEnabled()) return false;
|
|
|
|
LogPrint("masternode", "CMasternodePing::CheckAndUpdate -- Masternode ping acceepted and relayed, masternode=%s\n", vin.prevout.ToStringShort());
|
|
Relay();
|
|
|
|
return true;
|
|
}
|
|
|
|
void CMasternodePing::Relay()
|
|
{
|
|
CInv inv(MSG_MASTERNODE_PING, GetHash());
|
|
RelayInv(inv);
|
|
}
|
|
|
|
void CMasternode::AddGovernanceVote(uint256 nGovernanceObjectHash)
|
|
{
|
|
if(mapGovernanceObjectsVotedOn.count(nGovernanceObjectHash)) {
|
|
mapGovernanceObjectsVotedOn[nGovernanceObjectHash]++;
|
|
} else {
|
|
mapGovernanceObjectsVotedOn.insert(std::make_pair(nGovernanceObjectHash, 1));
|
|
}
|
|
}
|
|
|
|
void CMasternode::RemoveGovernanceObject(uint256 nGovernanceObjectHash)
|
|
{
|
|
std::map<uint256, int>::iterator it = mapGovernanceObjectsVotedOn.find(nGovernanceObjectHash);
|
|
if(it == mapGovernanceObjectsVotedOn.end()) {
|
|
return;
|
|
}
|
|
mapGovernanceObjectsVotedOn.erase(it);
|
|
}
|
|
|
|
void CMasternode::UpdateWatchdogVoteTime()
|
|
{
|
|
LOCK(cs);
|
|
nTimeLastWatchdogVote = GetTime();
|
|
}
|
|
|
|
/**
|
|
* FLAG GOVERNANCE ITEMS AS DIRTY
|
|
*
|
|
* - When masternode come and go on the network, we must flag the items they voted on to recalc it's cached flags
|
|
*
|
|
*/
|
|
void CMasternode::FlagGovernanceItemsAsDirty()
|
|
{
|
|
std::vector<uint256> vecDirty;
|
|
{
|
|
std::map<uint256, int>::iterator it = mapGovernanceObjectsVotedOn.begin();
|
|
while(it != mapGovernanceObjectsVotedOn.end()) {
|
|
vecDirty.push_back(it->first);
|
|
++it;
|
|
}
|
|
}
|
|
for(size_t i = 0; i < vecDirty.size(); ++i) {
|
|
mnodeman.AddDirtyGovernanceObjectHash(vecDirty[i]);
|
|
}
|
|
}
|