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409 lines
14 KiB
C++
409 lines
14 KiB
C++
// Copyright (c) 2014-2017 The Dash 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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#ifndef MASTERNODE_H
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#define MASTERNODE_H
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#include "key.h"
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#include "validation.h"
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#include "spork.h"
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class CMasternode;
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class CMasternodeBroadcast;
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class CConnman;
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static const int MASTERNODE_CHECK_SECONDS = 5;
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static const int MASTERNODE_MIN_MNB_SECONDS = 5 * 60;
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static const int MASTERNODE_MIN_MNP_SECONDS = 10 * 60;
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static const int MASTERNODE_EXPIRATION_SECONDS = 65 * 60;
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static const int MASTERNODE_WATCHDOG_MAX_SECONDS = 120 * 60;
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static const int MASTERNODE_NEW_START_REQUIRED_SECONDS = 180 * 60;
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static const int MASTERNODE_POSE_BAN_MAX_SCORE = 5;
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//
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// The Masternode Ping Class : Contains a different serialize method for sending pings from masternodes throughout the network
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//
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// sentinel version before sentinel ping implementation
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#define DEFAULT_SENTINEL_VERSION 0x010001
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class CMasternodePing
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{
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public:
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CTxIn vin{};
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uint256 blockHash{};
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int64_t sigTime{}; //mnb message times
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std::vector<unsigned char> vchSig{};
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bool fSentinelIsCurrent = false; // true if last sentinel ping was actual
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// MSB is always 0, other 3 bits corresponds to x.x.x version scheme
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uint32_t nSentinelVersion{DEFAULT_SENTINEL_VERSION};
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CMasternodePing() = default;
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CMasternodePing(const COutPoint& outpoint);
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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READWRITE(vin);
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READWRITE(blockHash);
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READWRITE(sigTime);
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READWRITE(vchSig);
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if(ser_action.ForRead() && (s.size() == 0))
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{
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fSentinelIsCurrent = false;
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nSentinelVersion = DEFAULT_SENTINEL_VERSION;
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return;
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}
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READWRITE(fSentinelIsCurrent);
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READWRITE(nSentinelVersion);
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}
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uint256 GetHash() const
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{
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CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
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ss << vin;
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ss << sigTime;
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return ss.GetHash();
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}
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bool IsExpired() const { return GetAdjustedTime() - sigTime > MASTERNODE_NEW_START_REQUIRED_SECONDS; }
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bool Sign(const CKey& keyMasternode, const CPubKey& pubKeyMasternode);
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bool CheckSignature(CPubKey& pubKeyMasternode, int &nDos);
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bool SimpleCheck(int& nDos);
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bool CheckAndUpdate(CMasternode* pmn, bool fFromNewBroadcast, int& nDos, CConnman& connman);
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void Relay(CConnman& connman);
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};
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inline bool operator==(const CMasternodePing& a, const CMasternodePing& b)
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{
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return a.vin == b.vin && a.blockHash == b.blockHash;
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}
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inline bool operator!=(const CMasternodePing& a, const CMasternodePing& b)
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{
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return !(a == b);
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}
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struct masternode_info_t
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{
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// Note: all these constructors can be removed once C++14 is enabled.
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// (in C++11 the member initializers wrongly disqualify this as an aggregate)
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masternode_info_t() = default;
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masternode_info_t(masternode_info_t const&) = default;
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masternode_info_t(int activeState, int protoVer, int64_t sTime) :
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nActiveState{activeState}, nProtocolVersion{protoVer}, sigTime{sTime} {}
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masternode_info_t(int activeState, int protoVer, int64_t sTime,
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COutPoint const& outpoint, CService const& addr,
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CPubKey const& pkCollAddr, CPubKey const& pkMN,
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int64_t tWatchdogV = 0) :
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nActiveState{activeState}, nProtocolVersion{protoVer}, sigTime{sTime},
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vin{outpoint}, addr{addr},
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pubKeyCollateralAddress{pkCollAddr}, pubKeyMasternode{pkMN},
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nTimeLastWatchdogVote{tWatchdogV} {}
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int nActiveState = 0;
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int nProtocolVersion = 0;
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int64_t sigTime = 0; //mnb message time
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CTxIn vin{};
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CService addr{};
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CPubKey pubKeyCollateralAddress{};
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CPubKey pubKeyMasternode{};
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int64_t nTimeLastWatchdogVote = 0;
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int64_t nLastDsq = 0; //the dsq count from the last dsq broadcast of this node
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int64_t nTimeLastChecked = 0;
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int64_t nTimeLastPaid = 0;
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int64_t nTimeLastPing = 0; //* not in CMN
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bool fInfoValid = false; //* not in CMN
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};
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//
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// The Masternode Class. For managing the Darksend process. It contains the input of the 1000DRK, signature to prove
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// it's the one who own that ip address and code for calculating the payment election.
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//
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class CMasternode : public masternode_info_t
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{
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private:
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// critical section to protect the inner data structures
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mutable CCriticalSection cs;
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public:
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enum state {
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MASTERNODE_PRE_ENABLED,
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MASTERNODE_ENABLED,
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MASTERNODE_EXPIRED,
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MASTERNODE_OUTPOINT_SPENT,
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MASTERNODE_UPDATE_REQUIRED,
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MASTERNODE_WATCHDOG_EXPIRED,
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MASTERNODE_NEW_START_REQUIRED,
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MASTERNODE_POSE_BAN
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};
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enum CollateralStatus {
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COLLATERAL_OK,
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COLLATERAL_UTXO_NOT_FOUND,
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COLLATERAL_INVALID_AMOUNT,
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COLLATERAL_INVALID_PUBKEY
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};
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CMasternodePing lastPing{};
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std::vector<unsigned char> vchSig{};
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uint256 nCollateralMinConfBlockHash{};
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int nBlockLastPaid{};
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int nPoSeBanScore{};
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int nPoSeBanHeight{};
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bool fAllowMixingTx{};
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bool fUnitTest = false;
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// KEEP TRACK OF GOVERNANCE ITEMS EACH MASTERNODE HAS VOTE UPON FOR RECALCULATION
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std::map<uint256, int> mapGovernanceObjectsVotedOn;
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CMasternode();
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CMasternode(const CMasternode& other);
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CMasternode(const CMasternodeBroadcast& mnb);
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CMasternode(CService addrNew, COutPoint outpointNew, CPubKey pubKeyCollateralAddressNew, CPubKey pubKeyMasternodeNew, int nProtocolVersionIn);
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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LOCK(cs);
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READWRITE(vin);
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READWRITE(addr);
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READWRITE(pubKeyCollateralAddress);
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READWRITE(pubKeyMasternode);
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READWRITE(lastPing);
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READWRITE(vchSig);
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READWRITE(sigTime);
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READWRITE(nLastDsq);
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READWRITE(nTimeLastChecked);
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READWRITE(nTimeLastPaid);
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READWRITE(nTimeLastWatchdogVote);
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READWRITE(nActiveState);
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READWRITE(nCollateralMinConfBlockHash);
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READWRITE(nBlockLastPaid);
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READWRITE(nProtocolVersion);
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READWRITE(nPoSeBanScore);
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READWRITE(nPoSeBanHeight);
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READWRITE(fAllowMixingTx);
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READWRITE(fUnitTest);
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READWRITE(mapGovernanceObjectsVotedOn);
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}
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// CALCULATE A RANK AGAINST OF GIVEN BLOCK
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arith_uint256 CalculateScore(const uint256& blockHash);
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bool UpdateFromNewBroadcast(CMasternodeBroadcast& mnb, CConnman& connman);
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static CollateralStatus CheckCollateral(const COutPoint& outpoint, const CPubKey& pubkey);
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static CollateralStatus CheckCollateral(const COutPoint& outpoint, const CPubKey& pubkey, int& nHeightRet);
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void Check(bool fForce = false);
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bool IsBroadcastedWithin(int nSeconds) { return GetAdjustedTime() - sigTime < nSeconds; }
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bool IsPingedWithin(int nSeconds, int64_t nTimeToCheckAt = -1)
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{
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if(lastPing == CMasternodePing()) return false;
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if(nTimeToCheckAt == -1) {
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nTimeToCheckAt = GetAdjustedTime();
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}
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return nTimeToCheckAt - lastPing.sigTime < nSeconds;
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}
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bool IsEnabled() { return nActiveState == MASTERNODE_ENABLED; }
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bool IsPreEnabled() { return nActiveState == MASTERNODE_PRE_ENABLED; }
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bool IsPoSeBanned() { return nActiveState == MASTERNODE_POSE_BAN; }
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// NOTE: this one relies on nPoSeBanScore, not on nActiveState as everything else here
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bool IsPoSeVerified() { return nPoSeBanScore <= -MASTERNODE_POSE_BAN_MAX_SCORE; }
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bool IsExpired() { return nActiveState == MASTERNODE_EXPIRED; }
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bool IsOutpointSpent() { return nActiveState == MASTERNODE_OUTPOINT_SPENT; }
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bool IsUpdateRequired() { return nActiveState == MASTERNODE_UPDATE_REQUIRED; }
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bool IsWatchdogExpired() { return nActiveState == MASTERNODE_WATCHDOG_EXPIRED; }
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bool IsNewStartRequired() { return nActiveState == MASTERNODE_NEW_START_REQUIRED; }
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static bool IsValidStateForAutoStart(int nActiveStateIn)
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{
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return nActiveStateIn == MASTERNODE_ENABLED ||
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nActiveStateIn == MASTERNODE_PRE_ENABLED ||
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nActiveStateIn == MASTERNODE_EXPIRED ||
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nActiveStateIn == MASTERNODE_WATCHDOG_EXPIRED;
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}
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bool IsValidForPayment()
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{
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if(nActiveState == MASTERNODE_ENABLED) {
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return true;
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}
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if(!sporkManager.IsSporkActive(SPORK_14_REQUIRE_SENTINEL_FLAG) &&
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(nActiveState == MASTERNODE_WATCHDOG_EXPIRED)) {
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return true;
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}
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return false;
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}
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bool IsValidNetAddr();
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static bool IsValidNetAddr(CService addrIn);
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void IncreasePoSeBanScore() { if(nPoSeBanScore < MASTERNODE_POSE_BAN_MAX_SCORE) nPoSeBanScore++; }
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void DecreasePoSeBanScore() { if(nPoSeBanScore > -MASTERNODE_POSE_BAN_MAX_SCORE) nPoSeBanScore--; }
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void PoSeBan() { nPoSeBanScore = MASTERNODE_POSE_BAN_MAX_SCORE; }
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masternode_info_t GetInfo();
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static std::string StateToString(int nStateIn);
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std::string GetStateString() const;
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std::string GetStatus() const;
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int GetLastPaidTime() { return nTimeLastPaid; }
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int GetLastPaidBlock() { return nBlockLastPaid; }
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void UpdateLastPaid(const CBlockIndex *pindex, int nMaxBlocksToScanBack);
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// KEEP TRACK OF EACH GOVERNANCE ITEM INCASE THIS NODE GOES OFFLINE, SO WE CAN RECALC THEIR STATUS
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void AddGovernanceVote(uint256 nGovernanceObjectHash);
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// RECALCULATE CACHED STATUS FLAGS FOR ALL AFFECTED OBJECTS
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void FlagGovernanceItemsAsDirty();
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void RemoveGovernanceObject(uint256 nGovernanceObjectHash);
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void UpdateWatchdogVoteTime(uint64_t nVoteTime = 0);
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CMasternode& operator=(CMasternode const& from)
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{
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static_cast<masternode_info_t&>(*this)=from;
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lastPing = from.lastPing;
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vchSig = from.vchSig;
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nCollateralMinConfBlockHash = from.nCollateralMinConfBlockHash;
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nBlockLastPaid = from.nBlockLastPaid;
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nPoSeBanScore = from.nPoSeBanScore;
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nPoSeBanHeight = from.nPoSeBanHeight;
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fAllowMixingTx = from.fAllowMixingTx;
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fUnitTest = from.fUnitTest;
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mapGovernanceObjectsVotedOn = from.mapGovernanceObjectsVotedOn;
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return *this;
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}
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};
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inline bool operator==(const CMasternode& a, const CMasternode& b)
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{
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return a.vin == b.vin;
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}
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inline bool operator!=(const CMasternode& a, const CMasternode& b)
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{
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return !(a.vin == b.vin);
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}
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//
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// The Masternode Broadcast Class : Contains a different serialize method for sending masternodes through the network
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//
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class CMasternodeBroadcast : public CMasternode
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{
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public:
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bool fRecovery;
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CMasternodeBroadcast() : CMasternode(), fRecovery(false) {}
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CMasternodeBroadcast(const CMasternode& mn) : CMasternode(mn), fRecovery(false) {}
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CMasternodeBroadcast(CService addrNew, COutPoint outpointNew, CPubKey pubKeyCollateralAddressNew, CPubKey pubKeyMasternodeNew, int nProtocolVersionIn) :
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CMasternode(addrNew, outpointNew, pubKeyCollateralAddressNew, pubKeyMasternodeNew, nProtocolVersionIn), fRecovery(false) {}
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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READWRITE(vin);
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READWRITE(addr);
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READWRITE(pubKeyCollateralAddress);
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READWRITE(pubKeyMasternode);
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READWRITE(vchSig);
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READWRITE(sigTime);
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READWRITE(nProtocolVersion);
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READWRITE(lastPing);
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}
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uint256 GetHash() const
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{
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CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
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ss << vin;
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ss << pubKeyCollateralAddress;
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ss << sigTime;
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return ss.GetHash();
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}
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/// Create Masternode broadcast, needs to be relayed manually after that
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static bool Create(const COutPoint& outpoint, const CService& service, const CKey& keyCollateralAddressNew, const CPubKey& pubKeyCollateralAddressNew, const CKey& keyMasternodeNew, const CPubKey& pubKeyMasternodeNew, std::string &strErrorRet, CMasternodeBroadcast &mnbRet);
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static bool Create(std::string strService, std::string strKey, std::string strTxHash, std::string strOutputIndex, std::string& strErrorRet, CMasternodeBroadcast &mnbRet, bool fOffline = false);
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bool SimpleCheck(int& nDos);
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bool Update(CMasternode* pmn, int& nDos, CConnman& connman);
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bool CheckOutpoint(int& nDos);
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bool Sign(const CKey& keyCollateralAddress);
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bool CheckSignature(int& nDos);
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void Relay(CConnman& connman);
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};
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class CMasternodeVerification
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{
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public:
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CTxIn vin1{};
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CTxIn vin2{};
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CService addr{};
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int nonce{};
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int nBlockHeight{};
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std::vector<unsigned char> vchSig1{};
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std::vector<unsigned char> vchSig2{};
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CMasternodeVerification() = default;
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CMasternodeVerification(CService addr, int nonce, int nBlockHeight) :
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addr(addr),
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nonce(nonce),
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nBlockHeight(nBlockHeight)
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{}
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ADD_SERIALIZE_METHODS;
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template <typename Stream, typename Operation>
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inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
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READWRITE(vin1);
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READWRITE(vin2);
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READWRITE(addr);
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READWRITE(nonce);
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READWRITE(nBlockHeight);
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READWRITE(vchSig1);
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READWRITE(vchSig2);
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}
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uint256 GetHash() const
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{
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CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION);
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ss << vin1;
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ss << vin2;
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ss << addr;
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ss << nonce;
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ss << nBlockHeight;
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return ss.GetHash();
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}
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void Relay() const
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{
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CInv inv(MSG_MASTERNODE_VERIFY, GetHash());
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g_connman->RelayInv(inv);
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}
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};
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#endif
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