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dash/src/evo/deterministicmns.cpp

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// Copyright (c) 2018-2024 The Dash Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <evo/deterministicmns.h>
#include <evo/dmn_types.h>
#include <evo/dmnstate.h>
#include <evo/providertx.h>
#include <evo/specialtx.h>
#include <llmq/commitment.h>
#include <llmq/utils.h>
#include <base58.h>
#include <chainparams.h>
#include <consensus/validation.h>
#include <deploymentstatus.h>
#include <script/standard.h>
#include <validation.h>
#include <validationinterface.h>
#include <univalue.h>
#include <messagesigner.h>
#include <uint256.h>
#include <optional>
#include <memory>
static const std::string DB_LIST_SNAPSHOT = "dmn_S3";
static const std::string DB_LIST_DIFF = "dmn_D3";
uint64_t CDeterministicMN::GetInternalId() const
{
// can't get it if it wasn't set yet
assert(internalId != std::numeric_limits<uint64_t>::max());
return internalId;
}
std::string CDeterministicMN::ToString() const
{
return strprintf("CDeterministicMN(proTxHash=%s, collateralOutpoint=%s, nOperatorReward=%f, state=%s", proTxHash.ToString(), collateralOutpoint.ToStringShort(), (double)nOperatorReward / 100, pdmnState->ToString());
}
UniValue CDeterministicMN::ToJson() const
{
UniValue obj;
obj.setObject();
obj.pushKV("type", std::string(GetMnType(nType).description));
obj.pushKV("proTxHash", proTxHash.ToString());
obj.pushKV("collateralHash", collateralOutpoint.hash.ToString());
obj.pushKV("collateralIndex", (int)collateralOutpoint.n);
uint256 tmpHashBlock;
CTransactionRef collateralTx = GetTransaction(/* block_index */ nullptr, /* mempool */ nullptr, collateralOutpoint.hash, Params().GetConsensus(), tmpHashBlock);
if (collateralTx) {
CTxDestination dest;
if (ExtractDestination(collateralTx->vout[collateralOutpoint.n].scriptPubKey, dest)) {
obj.pushKV("collateralAddress", EncodeDestination(dest));
}
}
obj.pushKV("operatorReward", (double)nOperatorReward / 100);
obj.pushKV("state", pdmnState->ToJson(nType));
return obj;
}
bool CDeterministicMNList::IsMNValid(const uint256& proTxHash) const
{
auto p = mnMap.find(proTxHash);
if (p == nullptr) {
return false;
}
return IsMNValid(**p);
}
bool CDeterministicMNList::IsMNPoSeBanned(const uint256& proTxHash) const
{
auto p = mnMap.find(proTxHash);
if (p == nullptr) {
return false;
}
return IsMNPoSeBanned(**p);
}
bool CDeterministicMNList::IsMNValid(const CDeterministicMN& dmn)
{
return !IsMNPoSeBanned(dmn);
}
bool CDeterministicMNList::IsMNPoSeBanned(const CDeterministicMN& dmn)
{
return dmn.pdmnState->IsBanned();
}
CDeterministicMNCPtr CDeterministicMNList::GetMN(const uint256& proTxHash) const
{
auto p = mnMap.find(proTxHash);
if (p == nullptr) {
return nullptr;
}
return *p;
}
CDeterministicMNCPtr CDeterministicMNList::GetValidMN(const uint256& proTxHash) const
{
auto dmn = GetMN(proTxHash);
if (dmn && !IsMNValid(*dmn)) {
return nullptr;
}
return dmn;
}
CDeterministicMNCPtr CDeterministicMNList::GetMNByOperatorKey(const CBLSPublicKey& pubKey) const
{
const auto it = ranges::find_if(mnMap,
[&pubKey](const auto& p){return p.second->pdmnState->pubKeyOperator.Get() == pubKey;});
if (it == mnMap.end()) {
return nullptr;
}
return it->second;
}
CDeterministicMNCPtr CDeterministicMNList::GetMNByCollateral(const COutPoint& collateralOutpoint) const
{
return GetUniquePropertyMN(collateralOutpoint);
}
CDeterministicMNCPtr CDeterministicMNList::GetValidMNByCollateral(const COutPoint& collateralOutpoint) const
{
auto dmn = GetMNByCollateral(collateralOutpoint);
if (dmn && !IsMNValid(*dmn)) {
return nullptr;
}
return dmn;
}
CDeterministicMNCPtr CDeterministicMNList::GetMNByService(const CService& service) const
{
return GetUniquePropertyMN(service);
}
CDeterministicMNCPtr CDeterministicMNList::GetMNByInternalId(uint64_t internalId) const
{
auto proTxHash = mnInternalIdMap.find(internalId);
if (!proTxHash) {
return nullptr;
}
return GetMN(*proTxHash);
}
static int CompareByLastPaid_GetHeight(const CDeterministicMN& dmn)
{
int height = dmn.pdmnState->nLastPaidHeight;
if (dmn.pdmnState->nPoSeRevivedHeight != -1 && dmn.pdmnState->nPoSeRevivedHeight > height) {
height = dmn.pdmnState->nPoSeRevivedHeight;
} else if (height == 0) {
height = dmn.pdmnState->nRegisteredHeight;
}
return height;
}
static bool CompareByLastPaid(const CDeterministicMN& _a, const CDeterministicMN& _b)
{
int ah = CompareByLastPaid_GetHeight(_a);
int bh = CompareByLastPaid_GetHeight(_b);
if (ah == bh) {
return _a.proTxHash < _b.proTxHash;
} else {
return ah < bh;
}
}
static bool CompareByLastPaid(const CDeterministicMN* _a, const CDeterministicMN* _b)
{
return CompareByLastPaid(*_a, *_b);
}
CDeterministicMNCPtr CDeterministicMNList::GetMNPayee(gsl::not_null<const CBlockIndex*> pindexPrev) const
{
if (mnMap.size() == 0) {
return nullptr;
}
const bool isv19Active{DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_V19)};
const bool isMNRewardReallocation{DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_MN_RR)};
// EvoNodes are rewarded 4 blocks in a row until MNRewardReallocation (Platform release)
// For optimization purposes we also check if v19 active to avoid loop over all masternodes
CDeterministicMNCPtr best = nullptr;
if (isv19Active && !isMNRewardReallocation) {
ForEachMNShared(true, [&](const CDeterministicMNCPtr& dmn) {
if (dmn->pdmnState->nLastPaidHeight == nHeight) {
// We found the last MN Payee.
// If the last payee is an EvoNode, we need to check its consecutive payments and pay him again if needed
if (dmn->nType == MnType::Evo && dmn->pdmnState->nConsecutivePayments < dmn_types::Evo.voting_weight) {
best = dmn;
}
}
});
if (best != nullptr) return best;
// Note: If the last payee was a regular MN or if the payee is an EvoNode that was removed from the mnList then that's fine.
// We can proceed with classic MN payee selection
}
ForEachMNShared(true, [&](const CDeterministicMNCPtr& dmn) {
if (best == nullptr || CompareByLastPaid(dmn.get(), best.get())) {
best = dmn;
}
});
return best;
}
std::vector<CDeterministicMNCPtr> CDeterministicMNList::GetProjectedMNPayees(gsl::not_null<const CBlockIndex* const> pindexPrev, int nCount) const
{
if (nCount < 0 ) {
return {};
}
const bool isMNRewardReallocation = DeploymentActiveAfter(pindexPrev, Params().GetConsensus(),
Consensus::DEPLOYMENT_MN_RR);
const auto weighted_count = isMNRewardReallocation ? GetValidMNsCount() : GetValidWeightedMNsCount();
nCount = std::min(nCount, int(weighted_count));
std::vector<CDeterministicMNCPtr> result;
result.reserve(weighted_count);
int remaining_evo_payments{0};
CDeterministicMNCPtr evo_to_be_skipped{nullptr};
if (!isMNRewardReallocation) {
ForEachMNShared(true, [&](const CDeterministicMNCPtr& dmn) {
if (dmn->pdmnState->nLastPaidHeight == nHeight) {
// We found the last MN Payee.
// If the last payee is an EvoNode, we need to check its consecutive payments and pay him again if needed
if (dmn->nType == MnType::Evo && dmn->pdmnState->nConsecutivePayments < dmn_types::Evo.voting_weight) {
remaining_evo_payments = dmn_types::Evo.voting_weight - dmn->pdmnState->nConsecutivePayments;
for ([[maybe_unused]] auto _ : irange::range(remaining_evo_payments)) {
result.emplace_back(dmn);
evo_to_be_skipped = dmn;
}
}
}
});
}
ForEachMNShared(true, [&](const CDeterministicMNCPtr& dmn) {
if (dmn == evo_to_be_skipped) return;
for ([[maybe_unused]] auto _ : irange::range(isMNRewardReallocation ? 1 : GetMnType(dmn->nType).voting_weight)) {
result.emplace_back(dmn);
}
});
if (evo_to_be_skipped != nullptr) {
// if EvoNode is in the middle of payments, add entries for already paid ones to the end of the list
for ([[maybe_unused]] auto _ : irange::range(evo_to_be_skipped->pdmnState->nConsecutivePayments)) {
result.emplace_back(evo_to_be_skipped);
}
}
std::sort(result.begin() + remaining_evo_payments, result.end(), [&](const CDeterministicMNCPtr& a, const CDeterministicMNCPtr& b) {
return CompareByLastPaid(a.get(), b.get());
});
result.resize(nCount);
return result;
}
std::vector<CDeterministicMNCPtr> CDeterministicMNList::CalculateQuorum(size_t maxSize, const uint256& modifier, const bool onlyEvoNodes) const
{
auto scores = CalculateScores(modifier, onlyEvoNodes);
// sort is descending order
std::sort(scores.rbegin(), scores.rend(), [](const std::pair<arith_uint256, CDeterministicMNCPtr>& a, const std::pair<arith_uint256, CDeterministicMNCPtr>& b) {
if (a.first == b.first) {
// this should actually never happen, but we should stay compatible with how the non-deterministic MNs did the sorting
return a.second->collateralOutpoint < b.second->collateralOutpoint;
}
return a.first < b.first;
});
// take top maxSize entries and return it
std::vector<CDeterministicMNCPtr> result;
result.resize(std::min(maxSize, scores.size()));
for (size_t i = 0; i < result.size(); i++) {
result[i] = std::move(scores[i].second);
}
return result;
}
std::vector<std::pair<arith_uint256, CDeterministicMNCPtr>> CDeterministicMNList::CalculateScores(const uint256& modifier, const bool onlyEvoNodes) const
{
std::vector<std::pair<arith_uint256, CDeterministicMNCPtr>> scores;
scores.reserve(GetAllMNsCount());
ForEachMNShared(true, [&](const CDeterministicMNCPtr& dmn) {
if (dmn->pdmnState->confirmedHash.IsNull()) {
// we only take confirmed MNs into account to avoid hash grinding on the ProRegTxHash to sneak MNs into a
// future quorums
return;
}
if (onlyEvoNodes) {
if (dmn->nType != MnType::Evo)
return;
}
// calculate sha256(sha256(proTxHash, confirmedHash), modifier) per MN
// Please note that this is not a double-sha256 but a single-sha256
// The first part is already precalculated (confirmedHashWithProRegTxHash)
// TODO When https://github.com/bitcoin/bitcoin/pull/13191 gets backported, implement something that is similar but for single-sha256
uint256 h;
CSHA256 sha256;
sha256.Write(dmn->pdmnState->confirmedHashWithProRegTxHash.begin(), dmn->pdmnState->confirmedHashWithProRegTxHash.size());
sha256.Write(modifier.begin(), modifier.size());
sha256.Finalize(h.begin());
scores.emplace_back(UintToArith256(h), dmn);
});
return scores;
}
int CDeterministicMNList::CalcMaxPoSePenalty() const
{
// Maximum PoSe penalty is dynamic and equals the number of registered MNs
// It's however at least 100.
// This means that the max penalty is usually equal to a full payment cycle
return std::max(100, (int)GetAllMNsCount());
}
int CDeterministicMNList::CalcPenalty(int percent) const
{
assert(percent > 0);
return (CalcMaxPoSePenalty() * percent) / 100;
}
void CDeterministicMNList::PoSePunish(const uint256& proTxHash, int penalty, bool debugLogs)
{
assert(penalty > 0);
auto dmn = GetMN(proTxHash);
if (!dmn) {
throw(std::runtime_error(strprintf("%s: Can't find a masternode with proTxHash=%s", __func__, proTxHash.ToString())));
}
int maxPenalty = CalcMaxPoSePenalty();
auto newState = std::make_shared<CDeterministicMNState>(*dmn->pdmnState);
newState->nPoSePenalty += penalty;
newState->nPoSePenalty = std::min(maxPenalty, newState->nPoSePenalty);
if (debugLogs && dmn->pdmnState->nPoSePenalty != maxPenalty) {
LogPrintf("CDeterministicMNList::%s -- punished MN %s, penalty %d->%d (max=%d)\n",
__func__, proTxHash.ToString(), dmn->pdmnState->nPoSePenalty, newState->nPoSePenalty, maxPenalty);
}
if (newState->nPoSePenalty >= maxPenalty && !newState->IsBanned()) {
newState->BanIfNotBanned(nHeight);
if (debugLogs) {
LogPrintf("CDeterministicMNList::%s -- banned MN %s at height %d\n",
__func__, proTxHash.ToString(), nHeight);
}
}
UpdateMN(proTxHash, newState);
}
void CDeterministicMNList::DecreaseScores()
{
std::vector<CDeterministicMNCPtr> toDecrease;
toDecrease.reserve(GetAllMNsCount() / 10);
// only iterate and decrease for valid ones (not PoSe banned yet)
// if a MN ever reaches the maximum, it stays in PoSe banned state until revived
ForEachMNShared(true /* onlyValid */, [&toDecrease](auto& dmn) {
// There is no reason to check if this MN is banned here since onlyValid=true will only run on non-banned MNs
if (dmn->pdmnState->nPoSePenalty > 0) {
toDecrease.emplace_back(dmn);
}
});
for (const auto& proTxHash : toDecrease) {
PoSeDecrease(*proTxHash);
}
}
void CDeterministicMNList::PoSeDecrease(const CDeterministicMN& dmn)
{
assert(dmn.pdmnState->nPoSePenalty > 0 && !dmn.pdmnState->IsBanned());
auto newState = std::make_shared<CDeterministicMNState>(*dmn.pdmnState);
newState->nPoSePenalty--;
UpdateMN(dmn, newState);
}
CDeterministicMNListDiff CDeterministicMNList::BuildDiff(const CDeterministicMNList& to) const
{
CDeterministicMNListDiff diffRet;
to.ForEachMNShared(false, [this, &diffRet](const CDeterministicMNCPtr& toPtr) {
auto fromPtr = GetMN(toPtr->proTxHash);
if (fromPtr == nullptr) {
diffRet.addedMNs.emplace_back(toPtr);
} else if (fromPtr != toPtr || fromPtr->pdmnState != toPtr->pdmnState) {
CDeterministicMNStateDiff stateDiff(*fromPtr->pdmnState, *toPtr->pdmnState);
if (stateDiff.fields) {
diffRet.updatedMNs.emplace(toPtr->GetInternalId(), std::move(stateDiff));
}
}
});
ForEachMN(false, [&](auto& fromPtr) {
auto toPtr = to.GetMN(fromPtr.proTxHash);
if (toPtr == nullptr) {
diffRet.removedMns.emplace(fromPtr.GetInternalId());
}
});
// added MNs need to be sorted by internalId so that these are added in correct order when the diff is applied later
// otherwise internalIds will not match with the original list
std::sort(diffRet.addedMNs.begin(), diffRet.addedMNs.end(), [](const CDeterministicMNCPtr& a, const CDeterministicMNCPtr& b) {
return a->GetInternalId() < b->GetInternalId();
});
return diffRet;
}
CDeterministicMNList CDeterministicMNList::ApplyDiff(gsl::not_null<const CBlockIndex*> pindex, const CDeterministicMNListDiff& diff) const
{
CDeterministicMNList result = *this;
result.blockHash = pindex->GetBlockHash();
result.nHeight = pindex->nHeight;
for (const auto& id : diff.removedMns) {
auto dmn = result.GetMNByInternalId(id);
if (!dmn) {
throw(std::runtime_error(strprintf("%s: can't find a removed masternode, id=%d", __func__, id)));
}
result.RemoveMN(dmn->proTxHash);
}
for (const auto& dmn : diff.addedMNs) {
result.AddMN(dmn);
}
for (const auto& p : diff.updatedMNs) {
auto dmn = result.GetMNByInternalId(p.first);
result.UpdateMN(*dmn, p.second);
}
return result;
}
void CDeterministicMNList::AddMN(const CDeterministicMNCPtr& dmn, bool fBumpTotalCount)
{
assert(dmn != nullptr);
if (mnMap.find(dmn->proTxHash)) {
throw(std::runtime_error(strprintf("%s: Can't add a masternode with a duplicate proTxHash=%s", __func__, dmn->proTxHash.ToString())));
}
if (mnInternalIdMap.find(dmn->GetInternalId())) {
throw(std::runtime_error(strprintf("%s: Can't add a masternode with a duplicate internalId=%d", __func__, dmn->GetInternalId())));
}
// All mnUniquePropertyMap's updates must be atomic.
// Using this temporary map as a checkpoint to roll back to in case of any issues.
decltype(mnUniquePropertyMap) mnUniquePropertyMapSaved = mnUniquePropertyMap;
if (!AddUniqueProperty(*dmn, dmn->collateralOutpoint)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't add a masternode %s with a duplicate collateralOutpoint=%s", __func__,
dmn->proTxHash.ToString(), dmn->collateralOutpoint.ToStringShort())));
}
if (dmn->pdmnState->addr != CService() && !AddUniqueProperty(*dmn, dmn->pdmnState->addr)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't add a masternode %s with a duplicate address=%s", __func__,
dmn->proTxHash.ToString(), dmn->pdmnState->addr.ToStringIPPort())));
}
if (!AddUniqueProperty(*dmn, dmn->pdmnState->keyIDOwner)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't add a masternode %s with a duplicate keyIDOwner=%s", __func__,
dmn->proTxHash.ToString(), EncodeDestination(PKHash(dmn->pdmnState->keyIDOwner)))));
}
if (dmn->pdmnState->pubKeyOperator.Get().IsValid() && !AddUniqueProperty(*dmn, dmn->pdmnState->pubKeyOperator)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't add a masternode %s with a duplicate pubKeyOperator=%s", __func__,
dmn->proTxHash.ToString(), dmn->pdmnState->pubKeyOperator.ToString())));
}
if (dmn->nType == MnType::Evo) {
if (dmn->pdmnState->platformNodeID != uint160() && !AddUniqueProperty(*dmn, dmn->pdmnState->platformNodeID)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't add a masternode %s with a duplicate platformNodeID=%s", __func__,
dmn->proTxHash.ToString(), dmn->pdmnState->platformNodeID.ToString())));
}
}
mnMap = mnMap.set(dmn->proTxHash, dmn);
mnInternalIdMap = mnInternalIdMap.set(dmn->GetInternalId(), dmn->proTxHash);
if (fBumpTotalCount) {
// nTotalRegisteredCount acts more like a checkpoint, not as a limit,
nTotalRegisteredCount = std::max(dmn->GetInternalId() + 1, (uint64_t)nTotalRegisteredCount);
}
}
void CDeterministicMNList::UpdateMN(const CDeterministicMN& oldDmn, const std::shared_ptr<const CDeterministicMNState>& pdmnState)
{
auto dmn = std::make_shared<CDeterministicMN>(oldDmn);
auto oldState = dmn->pdmnState;
// All mnUniquePropertyMap's updates must be atomic.
// Using this temporary map as a checkpoint to roll back to in case of any issues.
decltype(mnUniquePropertyMap) mnUniquePropertyMapSaved = mnUniquePropertyMap;
if (!UpdateUniqueProperty(*dmn, oldState->addr, pdmnState->addr)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't update a masternode %s with a duplicate address=%s", __func__,
oldDmn.proTxHash.ToString(), pdmnState->addr.ToStringIPPort())));
}
if (!UpdateUniqueProperty(*dmn, oldState->keyIDOwner, pdmnState->keyIDOwner)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't update a masternode %s with a duplicate keyIDOwner=%s", __func__,
oldDmn.proTxHash.ToString(), EncodeDestination(PKHash(pdmnState->keyIDOwner)))));
}
if (!UpdateUniqueProperty(*dmn, oldState->pubKeyOperator, pdmnState->pubKeyOperator)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't update a masternode %s with a duplicate pubKeyOperator=%s", __func__,
oldDmn.proTxHash.ToString(), pdmnState->pubKeyOperator.ToString())));
}
if (dmn->nType == MnType::Evo) {
if (!UpdateUniqueProperty(*dmn, oldState->platformNodeID, pdmnState->platformNodeID)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't update a masternode %s with a duplicate platformNodeID=%s", __func__,
oldDmn.proTxHash.ToString(), pdmnState->platformNodeID.ToString())));
}
}
dmn->pdmnState = pdmnState;
mnMap = mnMap.set(oldDmn.proTxHash, dmn);
}
void CDeterministicMNList::UpdateMN(const uint256& proTxHash, const std::shared_ptr<const CDeterministicMNState>& pdmnState)
{
auto oldDmn = mnMap.find(proTxHash);
if (!oldDmn) {
throw(std::runtime_error(strprintf("%s: Can't find a masternode with proTxHash=%s", __func__, proTxHash.ToString())));
}
UpdateMN(**oldDmn, pdmnState);
}
void CDeterministicMNList::UpdateMN(const CDeterministicMN& oldDmn, const CDeterministicMNStateDiff& stateDiff)
{
auto oldState = oldDmn.pdmnState;
auto newState = std::make_shared<CDeterministicMNState>(*oldState);
stateDiff.ApplyToState(*newState);
UpdateMN(oldDmn, newState);
}
void CDeterministicMNList::RemoveMN(const uint256& proTxHash)
{
auto dmn = GetMN(proTxHash);
if (!dmn) {
throw(std::runtime_error(strprintf("%s: Can't find a masternode with proTxHash=%s", __func__, proTxHash.ToString())));
}
// All mnUniquePropertyMap's updates must be atomic.
// Using this temporary map as a checkpoint to roll back to in case of any issues.
decltype(mnUniquePropertyMap) mnUniquePropertyMapSaved = mnUniquePropertyMap;
if (!DeleteUniqueProperty(*dmn, dmn->collateralOutpoint)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't delete a masternode %s with a collateralOutpoint=%s", __func__,
proTxHash.ToString(), dmn->collateralOutpoint.ToStringShort())));
}
if (dmn->pdmnState->addr != CService() && !DeleteUniqueProperty(*dmn, dmn->pdmnState->addr)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't delete a masternode %s with a address=%s", __func__,
proTxHash.ToString(), dmn->pdmnState->addr.ToStringIPPort())));
}
if (!DeleteUniqueProperty(*dmn, dmn->pdmnState->keyIDOwner)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't delete a masternode %s with a keyIDOwner=%s", __func__,
proTxHash.ToString(), EncodeDestination(PKHash(dmn->pdmnState->keyIDOwner)))));
}
if (dmn->pdmnState->pubKeyOperator.Get().IsValid() && !DeleteUniqueProperty(*dmn, dmn->pdmnState->pubKeyOperator)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't delete a masternode %s with a pubKeyOperator=%s", __func__,
proTxHash.ToString(), dmn->pdmnState->pubKeyOperator.ToString())));
}
if (dmn->nType == MnType::Evo) {
if (dmn->pdmnState->platformNodeID != uint160() && !DeleteUniqueProperty(*dmn, dmn->pdmnState->platformNodeID)) {
mnUniquePropertyMap = mnUniquePropertyMapSaved;
throw(std::runtime_error(strprintf("%s: Can't delete a masternode %s with a duplicate platformNodeID=%s", __func__,
dmn->proTxHash.ToString(), dmn->pdmnState->platformNodeID.ToString())));
}
}
mnMap = mnMap.erase(proTxHash);
mnInternalIdMap = mnInternalIdMap.erase(dmn->GetInternalId());
}
bool CDeterministicMNManager::ProcessBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindex, BlockValidationState& state, const CCoinsViewCache& view, bool fJustCheck, std::optional<MNListUpdates>& updatesRet)
{
AssertLockHeld(cs_main);
const auto& consensusParams = Params().GetConsensus();
if (!DeploymentActiveAt(*pindex, consensusParams, Consensus::DEPLOYMENT_DIP0003)) {
return true;
}
CDeterministicMNList oldList, newList;
CDeterministicMNListDiff diff;
int nHeight = pindex->nHeight;
try {
if (!BuildNewListFromBlock(block, pindex->pprev, state, view, newList, true)) {
// pass the state returned by the function above
return false;
}
if (fJustCheck) {
return true;
}
newList.SetBlockHash(pindex->GetBlockHash());
LOCK(cs);
oldList = GetListForBlockInternal(pindex->pprev);
diff = oldList.BuildDiff(newList);
m_evoDb.Write(std::make_pair(DB_LIST_DIFF, newList.GetBlockHash()), diff);
if ((nHeight % DISK_SNAPSHOT_PERIOD) == 0 || pindex->pprev == m_initial_snapshot_index) {
m_evoDb.Write(std::make_pair(DB_LIST_SNAPSHOT, newList.GetBlockHash()), newList);
mnListsCache.emplace(newList.GetBlockHash(), newList);
LogPrintf("CDeterministicMNManager::%s -- Wrote snapshot. nHeight=%d, mapCurMNs.allMNsCount=%d\n",
__func__, nHeight, newList.GetAllMNsCount());
}
diff.nHeight = pindex->nHeight;
mnListDiffsCache.emplace(pindex->GetBlockHash(), diff);
} catch (const std::exception& e) {
LogPrintf("CDeterministicMNManager::%s -- internal error: %s\n", __func__, e.what());
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "failed-dmn-block");
}
if (diff.HasChanges()) {
updatesRet = {newList, oldList, diff};
}
if (nHeight == consensusParams.DIP0003EnforcementHeight) {
if (!consensusParams.DIP0003EnforcementHash.IsNull() && consensusParams.DIP0003EnforcementHash != pindex->GetBlockHash()) {
LogPrintf("CDeterministicMNManager::%s -- DIP3 enforcement block has wrong hash: hash=%s, expected=%s, nHeight=%d\n", __func__,
pindex->GetBlockHash().ToString(), consensusParams.DIP0003EnforcementHash.ToString(), nHeight);
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-dip3-enf-block");
}
LogPrintf("CDeterministicMNManager::%s -- DIP3 is enforced now. nHeight=%d\n", __func__, nHeight);
}
if (nHeight > to_cleanup) to_cleanup = nHeight;
return true;
}
bool CDeterministicMNManager::UndoBlock(gsl::not_null<const CBlockIndex*> pindex, std::optional<MNListUpdates>& updatesRet)
{
int nHeight = pindex->nHeight;
uint256 blockHash = pindex->GetBlockHash();
CDeterministicMNList curList;
CDeterministicMNList prevList;
CDeterministicMNListDiff diff;
{
LOCK(cs);
m_evoDb.Read(std::make_pair(DB_LIST_DIFF, blockHash), diff);
if (diff.HasChanges()) {
// need to call this before erasing
curList = GetListForBlockInternal(pindex);
prevList = GetListForBlockInternal(pindex->pprev);
}
mnListsCache.erase(blockHash);
mnListDiffsCache.erase(blockHash);
}
if (diff.HasChanges()) {
auto inversedDiff = curList.BuildDiff(prevList);
updatesRet = {curList, prevList, inversedDiff};
}
const auto& consensusParams = Params().GetConsensus();
if (nHeight == consensusParams.DIP0003EnforcementHeight) {
LogPrintf("CDeterministicMNManager::%s -- DIP3 is not enforced anymore. nHeight=%d\n", __func__, nHeight);
}
return true;
}
void CDeterministicMNManager::UpdatedBlockTip(gsl::not_null<const CBlockIndex*> pindex)
{
LOCK(cs);
tipIndex = pindex;
}
bool CDeterministicMNManager::BuildNewListFromBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindexPrev, BlockValidationState& state, const CCoinsViewCache& view, CDeterministicMNList& mnListRet, bool debugLogs)
{
int nHeight = pindexPrev->nHeight + 1;
CDeterministicMNList oldList = GetListForBlock(pindexPrev);
CDeterministicMNList newList = oldList;
newList.SetBlockHash(uint256()); // we can't know the final block hash, so better not return a (invalid) block hash
newList.SetHeight(nHeight);
auto payee = oldList.GetMNPayee(pindexPrev);
// we iterate the oldList here and update the newList
// this is only valid as long these have not diverged at this point, which is the case as long as we don't add
// code above this loop that modifies newList
oldList.ForEachMN(false, [&pindexPrev, &newList](auto& dmn) {
if (!dmn.pdmnState->confirmedHash.IsNull()) {
// already confirmed
return;
}
// this works on the previous block, so confirmation will happen one block after nMasternodeMinimumConfirmations
// has been reached, but the block hash will then point to the block at nMasternodeMinimumConfirmations
int nConfirmations = pindexPrev->nHeight - dmn.pdmnState->nRegisteredHeight;
if (nConfirmations >= Params().GetConsensus().nMasternodeMinimumConfirmations) {
auto newState = std::make_shared<CDeterministicMNState>(*dmn.pdmnState);
newState->UpdateConfirmedHash(dmn.proTxHash, pindexPrev->GetBlockHash());
newList.UpdateMN(dmn.proTxHash, newState);
}
});
newList.DecreaseScores();
const bool isV19Active{DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_V19)};
const bool isMNRewardReallocation{DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_MN_RR)};
// we skip the coinbase
for (int i = 1; i < (int)block.vtx.size(); i++) {
const CTransaction& tx = *block.vtx[i];
if (!tx.IsSpecialTxVersion()) {
// only interested in special TXs
continue;
}
if (tx.nType == TRANSACTION_PROVIDER_REGISTER) {
const auto opt_proTx = GetTxPayload<CProRegTx>(tx);
if (!opt_proTx) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
auto& proTx = *opt_proTx;
if (proTx.nType == MnType::Evo && !isV19Active) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
auto dmn = std::make_shared<CDeterministicMN>(newList.GetTotalRegisteredCount(), proTx.nType);
dmn->proTxHash = tx.GetHash();
// collateralOutpoint is either pointing to an external collateral or to the ProRegTx itself
if (proTx.collateralOutpoint.hash.IsNull()) {
dmn->collateralOutpoint = COutPoint(tx.GetHash(), proTx.collateralOutpoint.n);
} else {
dmn->collateralOutpoint = proTx.collateralOutpoint;
}
Coin coin;
CAmount expectedCollateral = GetMnType(proTx.nType).collat_amount;
if (!proTx.collateralOutpoint.hash.IsNull() && (!view.GetCoin(dmn->collateralOutpoint, coin) || coin.IsSpent() || coin.out.nValue != expectedCollateral)) {
// should actually never get to this point as CheckProRegTx should have handled this case.
// We do this additional check nevertheless to be 100% sure
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-collateral");
}
auto replacedDmn = newList.GetMNByCollateral(dmn->collateralOutpoint);
if (replacedDmn != nullptr) {
// This might only happen with a ProRegTx that refers an external collateral
// In that case the new ProRegTx will replace the old one. This means the old one is removed
// and the new one is added like a completely fresh one, which is also at the bottom of the payment list
newList.RemoveMN(replacedDmn->proTxHash);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s removed from list because collateral was used for a new ProRegTx. collateralOutpoint=%s, nHeight=%d, mapCurMNs.allMNsCount=%d\n",
__func__, replacedDmn->proTxHash.ToString(), dmn->collateralOutpoint.ToStringShort(), nHeight, newList.GetAllMNsCount());
}
}
if (newList.HasUniqueProperty(proTx.addr)) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-dup-addr");
}
if (newList.HasUniqueProperty(proTx.keyIDOwner) || newList.HasUniqueProperty(proTx.pubKeyOperator)) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-dup-key");
}
dmn->nOperatorReward = proTx.nOperatorReward;
auto dmnState = std::make_shared<CDeterministicMNState>(proTx);
dmnState->nRegisteredHeight = nHeight;
if (proTx.addr == CService()) {
// start in banned pdmnState as we need to wait for a ProUpServTx
dmnState->BanIfNotBanned(nHeight);
}
dmn->pdmnState = dmnState;
newList.AddMN(dmn);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s added at height %d: %s\n",
__func__, tx.GetHash().ToString(), nHeight, proTx.ToString());
}
} else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_SERVICE) {
const auto opt_proTx = GetTxPayload<CProUpServTx>(tx);
if (!opt_proTx) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
if (opt_proTx->nType == MnType::Evo && !DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_V19)) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
if (newList.HasUniqueProperty(opt_proTx->addr) && newList.GetUniquePropertyMN(opt_proTx->addr)->proTxHash != opt_proTx->proTxHash) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-dup-addr");
}
CDeterministicMNCPtr dmn = newList.GetMN(opt_proTx->proTxHash);
if (!dmn) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-hash");
}
if (opt_proTx->nType != dmn->nType) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-type-mismatch");
}
if (!IsValidMnType(opt_proTx->nType)) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-type");
}
auto newState = std::make_shared<CDeterministicMNState>(*dmn->pdmnState);
newState->addr = opt_proTx->addr;
newState->scriptOperatorPayout = opt_proTx->scriptOperatorPayout;
if (opt_proTx->nType == MnType::Evo) {
newState->platformNodeID = opt_proTx->platformNodeID;
newState->platformP2PPort = opt_proTx->platformP2PPort;
newState->platformHTTPPort = opt_proTx->platformHTTPPort;
}
if (newState->IsBanned()) {
// only revive when all keys are set
if (newState->pubKeyOperator.Get().IsValid() && !newState->keyIDVoting.IsNull() && !newState->keyIDOwner.IsNull()) {
newState->Revive(nHeight);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s revived at height %d\n",
__func__, opt_proTx->proTxHash.ToString(), nHeight);
}
}
}
newList.UpdateMN(opt_proTx->proTxHash, newState);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s updated at height %d: %s\n",
__func__, opt_proTx->proTxHash.ToString(), nHeight, opt_proTx->ToString());
}
} else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_REGISTRAR) {
const auto opt_proTx = GetTxPayload<CProUpRegTx>(tx);
if (!opt_proTx) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
CDeterministicMNCPtr dmn = newList.GetMN(opt_proTx->proTxHash);
if (!dmn) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-hash");
}
auto newState = std::make_shared<CDeterministicMNState>(*dmn->pdmnState);
if (newState->pubKeyOperator != opt_proTx->pubKeyOperator) {
// reset all operator related fields and put MN into PoSe-banned state in case the operator key changes
newState->ResetOperatorFields();
newState->BanIfNotBanned(nHeight);
// we update pubKeyOperator here, make sure state version matches
newState->nVersion = opt_proTx->nVersion;
newState->pubKeyOperator = opt_proTx->pubKeyOperator;
}
newState->keyIDVoting = opt_proTx->keyIDVoting;
newState->scriptPayout = opt_proTx->scriptPayout;
newList.UpdateMN(opt_proTx->proTxHash, newState);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s updated at height %d: %s\n",
__func__, opt_proTx->proTxHash.ToString(), nHeight, opt_proTx->ToString());
}
} else if (tx.nType == TRANSACTION_PROVIDER_UPDATE_REVOKE) {
const auto opt_proTx = GetTxPayload<CProUpRevTx>(tx);
if (!opt_proTx) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-payload");
}
CDeterministicMNCPtr dmn = newList.GetMN(opt_proTx->proTxHash);
if (!dmn) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-protx-hash");
}
auto newState = std::make_shared<CDeterministicMNState>(*dmn->pdmnState);
newState->ResetOperatorFields();
newState->BanIfNotBanned(nHeight);
newState->nRevocationReason = opt_proTx->nReason;
newList.UpdateMN(opt_proTx->proTxHash, newState);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s revoked operator key at height %d: %s\n",
__func__, opt_proTx->proTxHash.ToString(), nHeight, opt_proTx->ToString());
}
} else if (tx.nType == TRANSACTION_QUORUM_COMMITMENT) {
const auto opt_qc = GetTxPayload<llmq::CFinalCommitmentTxPayload>(tx);
if (!opt_qc) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-qc-payload");
}
if (!opt_qc->commitment.IsNull()) {
const auto& llmq_params_opt = Params().GetLLMQ(opt_qc->commitment.llmqType);
if (!llmq_params_opt.has_value()) {
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-qc-commitment-type");
}
int qcnHeight = int(opt_qc->nHeight);
int quorumHeight = qcnHeight - (qcnHeight % llmq_params_opt->dkgInterval) + int(opt_qc->commitment.quorumIndex);
auto pQuorumBaseBlockIndex = pindexPrev->GetAncestor(quorumHeight);
if (!pQuorumBaseBlockIndex || pQuorumBaseBlockIndex->GetBlockHash() != opt_qc->commitment.quorumHash) {
// we should actually never get into this case as validation should have caught it...but let's be sure
return state.Invalid(BlockValidationResult::BLOCK_CONSENSUS, "bad-qc-quorum-hash");
}
HandleQuorumCommitment(opt_qc->commitment, pQuorumBaseBlockIndex, newList, debugLogs);
}
}
}
// we skip the coinbase
for (int i = 1; i < (int)block.vtx.size(); i++) {
const CTransaction& tx = *block.vtx[i];
// check if any existing MN collateral is spent by this transaction
for (const auto& in : tx.vin) {
auto dmn = newList.GetMNByCollateral(in.prevout);
if (dmn && dmn->collateralOutpoint == in.prevout) {
newList.RemoveMN(dmn->proTxHash);
if (debugLogs) {
LogPrintf("CDeterministicMNManager::%s -- MN %s removed from list because collateral was spent. collateralOutpoint=%s, nHeight=%d, mapCurMNs.allMNsCount=%d\n",
__func__, dmn->proTxHash.ToString(), dmn->collateralOutpoint.ToStringShort(), nHeight, newList.GetAllMNsCount());
}
}
}
}
// The payee for the current block was determined by the previous block's list, but it might have disappeared in the
// current block. We still pay that MN one last time, however.
if (payee && newList.HasMN(payee->proTxHash)) {
auto dmn = newList.GetMN(payee->proTxHash);
auto newState = std::make_shared<CDeterministicMNState>(*dmn->pdmnState);
newState->nLastPaidHeight = nHeight;
// Starting from v19 and until MNRewardReallocation, EvoNodes will be paid 4 blocks in a row
// No need to check if v19 is active, since EvoNode ProRegTxes are allowed only after v19 activation
// Note: If the payee wasn't found in the current block that's fine
if (dmn->nType == MnType::Evo && !isMNRewardReallocation) {
++newState->nConsecutivePayments;
if (debugLogs) {
LogPrint(BCLog::MNPAYMENTS, "CDeterministicMNManager::%s -- MN %s is an EvoNode, bumping nConsecutivePayments to %d\n",
__func__, dmn->proTxHash.ToString(), newState->nConsecutivePayments);
}
}
newList.UpdateMN(payee->proTxHash, newState);
if (debugLogs) {
dmn = newList.GetMN(payee->proTxHash);
LogPrint(BCLog::MNPAYMENTS, "CDeterministicMNManager::%s -- MN %s, nConsecutivePayments=%d\n",
__func__, dmn->proTxHash.ToString(), dmn->pdmnState->nConsecutivePayments);
}
}
// reset nConsecutivePayments on non-paid EvoNodes
auto newList2 = newList;
newList2.ForEachMN(false, [&](auto& dmn) {
if (dmn.nType != MnType::Evo) return;
if (payee != nullptr && dmn.proTxHash == payee->proTxHash && !isMNRewardReallocation) return;
if (dmn.pdmnState->nConsecutivePayments == 0) return;
if (debugLogs) {
LogPrint(BCLog::MNPAYMENTS, "CDeterministicMNManager::%s -- MN %s, reset nConsecutivePayments %d->0\n",
__func__, dmn.proTxHash.ToString(), dmn.pdmnState->nConsecutivePayments);
}
auto newState = std::make_shared<CDeterministicMNState>(*dmn.pdmnState);
newState->nConsecutivePayments = 0;
newList.UpdateMN(dmn.proTxHash, newState);
});
mnListRet = std::move(newList);
return true;
}
void CDeterministicMNManager::HandleQuorumCommitment(const llmq::CFinalCommitment& qc, gsl::not_null<const CBlockIndex*> pQuorumBaseBlockIndex, CDeterministicMNList& mnList, bool debugLogs)
{
// The commitment has already been validated at this point, so it's safe to use members of it
auto members = llmq::utils::GetAllQuorumMembers(qc.llmqType, *this, pQuorumBaseBlockIndex);
for (size_t i = 0; i < members.size(); i++) {
if (!mnList.HasMN(members[i]->proTxHash)) {
continue;
}
if (!qc.validMembers[i]) {
// punish MN for failed DKG participation
// The idea is to immediately ban a MN when it fails 2 DKG sessions with only a few blocks in-between
// If there were enough blocks between failures, the MN has a chance to recover as he reduces his penalty by 1 for every block
// If it however fails 3 times in the timespan of a single payment cycle, it should definitely get banned
mnList.PoSePunish(members[i]->proTxHash, mnList.CalcPenalty(66), debugLogs);
}
}
}
CDeterministicMNList CDeterministicMNManager::GetListForBlockInternal(gsl::not_null<const CBlockIndex*> pindex)
{
AssertLockHeld(cs);
CDeterministicMNList snapshot;
std::list<const CBlockIndex*> listDiffIndexes;
while (true) {
// try using cache before reading from disk
auto itLists = mnListsCache.find(pindex->GetBlockHash());
if (itLists != mnListsCache.end()) {
snapshot = itLists->second;
break;
}
if (m_evoDb.Read(std::make_pair(DB_LIST_SNAPSHOT, pindex->GetBlockHash()), snapshot)) {
mnListsCache.emplace(pindex->GetBlockHash(), snapshot);
break;
}
// no snapshot found yet, check diffs
auto itDiffs = mnListDiffsCache.find(pindex->GetBlockHash());
if (itDiffs != mnListDiffsCache.end()) {
listDiffIndexes.emplace_front(pindex);
pindex = pindex->pprev;
continue;
}
CDeterministicMNListDiff diff;
if (!m_evoDb.Read(std::make_pair(DB_LIST_DIFF, pindex->GetBlockHash()), diff)) {
// no snapshot and no diff on disk means that it's the initial snapshot
m_initial_snapshot_index = pindex;
snapshot = CDeterministicMNList(pindex->GetBlockHash(), pindex->nHeight, 0);
mnListsCache.emplace(pindex->GetBlockHash(), snapshot);
LogPrintf("CDeterministicMNManager::%s -- initial snapshot. blockHash=%s nHeight=%d\n",
__func__, snapshot.GetBlockHash().ToString(), snapshot.GetHeight());
break;
}
diff.nHeight = pindex->nHeight;
mnListDiffsCache.emplace(pindex->GetBlockHash(), std::move(diff));
listDiffIndexes.emplace_front(pindex);
pindex = pindex->pprev;
}
for (const auto& diffIndex : listDiffIndexes) {
const auto& diff = mnListDiffsCache.at(diffIndex->GetBlockHash());
if (diff.HasChanges()) {
snapshot = snapshot.ApplyDiff(diffIndex, diff);
} else {
snapshot.SetBlockHash(diffIndex->GetBlockHash());
snapshot.SetHeight(diffIndex->nHeight);
}
}
if (tipIndex) {
// always keep a snapshot for the tip
if (snapshot.GetBlockHash() == tipIndex->GetBlockHash()) {
mnListsCache.emplace(snapshot.GetBlockHash(), snapshot);
} else {
// keep snapshots for yet alive quorums
if (ranges::any_of(Params().GetConsensus().llmqs, [&snapshot, this](const auto& params){
AssertLockHeld(cs);
return (snapshot.GetHeight() % params.dkgInterval == 0) &&
(snapshot.GetHeight() + params.dkgInterval * (params.keepOldConnections + 1) >= tipIndex->nHeight);
})) {
mnListsCache.emplace(snapshot.GetBlockHash(), snapshot);
}
}
}
assert(snapshot.GetHeight() != -1);
return snapshot;
}
CDeterministicMNList CDeterministicMNManager::GetListAtChainTip()
{
LOCK(cs);
if (!tipIndex) {
return {};
}
return GetListForBlockInternal(tipIndex);
}
bool CDeterministicMNManager::IsProTxWithCollateral(const CTransactionRef& tx, uint32_t n)
{
if (!tx->IsSpecialTxVersion() || tx->nType != TRANSACTION_PROVIDER_REGISTER) {
return false;
}
const auto opt_proTx = GetTxPayload<CProRegTx>(*tx);
if (!opt_proTx) {
return false;
}
auto& proTx = *opt_proTx;
if (!proTx.collateralOutpoint.hash.IsNull()) {
return false;
}
if (proTx.collateralOutpoint.n >= tx->vout.size() || proTx.collateralOutpoint.n != n) {
return false;
}
if (const CAmount expectedCollateral = GetMnType(proTx.nType).collat_amount; tx->vout[n].nValue != expectedCollateral) {
return false;
}
return true;
}
void CDeterministicMNManager::CleanupCache(int nHeight)
{
AssertLockHeld(cs);
std::vector<uint256> toDeleteLists;
std::vector<uint256> toDeleteDiffs;
for (const auto& p : mnListsCache) {
if (p.second.GetHeight() + LIST_DIFFS_CACHE_SIZE < nHeight) {
// too old, drop it
toDeleteLists.emplace_back(p.first);
continue;
}
if (tipIndex != nullptr && p.first == tipIndex->GetBlockHash()) {
// it's a snapshot for the tip, keep it
continue;
}
bool fQuorumCache = ranges::any_of(Params().GetConsensus().llmqs, [&nHeight, &p](const auto& params){
return (p.second.GetHeight() % params.dkgInterval == 0) &&
(p.second.GetHeight() + params.dkgInterval * (params.keepOldConnections + 1) >= nHeight);
});
if (fQuorumCache) {
// at least one quorum could be using it, keep it
continue;
}
// none of the above, drop it
toDeleteLists.emplace_back(p.first);
}
for (const auto& h : toDeleteLists) {
mnListsCache.erase(h);
}
for (const auto& p : mnListDiffsCache) {
if (p.second.nHeight + LIST_DIFFS_CACHE_SIZE < nHeight) {
toDeleteDiffs.emplace_back(p.first);
}
}
for (const auto& h : toDeleteDiffs) {
mnListDiffsCache.erase(h);
}
}
[[nodiscard]] static bool EraseOldDBData(CDBWrapper& db, const std::vector<std::string>& db_key_prefixes)
{
bool erased{false};
for(const auto& db_key_prefix : db_key_prefixes) {
CDBBatch batch{db};
std::unique_ptr<CDBIterator> it{db.NewIterator()};
std::pair firstKey{db_key_prefix, uint256()};
it->Seek(firstKey);
while (it->Valid()) {
decltype(firstKey) curKey;
if (!it->GetKey(curKey) || std::get<0>(curKey) != db_key_prefix) {
break;
}
batch.Erase(curKey);
erased = true;
it->Next();
}
if (erased) {
LogPrintf("CDeterministicMNManager::%s -- updating db...\n", __func__);
db.WriteBatch(batch);
LogPrintf("CDeterministicMNManager::%s -- done cleaning old data for %s\n", __func__, db_key_prefix);
}
}
return erased;
}
bool CDeterministicMNManager::MigrateDBIfNeeded()
{
static const std::string DB_OLD_LIST_SNAPSHOT = "dmn_S";
static const std::string DB_OLD_LIST_DIFF = "dmn_D";
static const std::string DB_OLD_BEST_BLOCK = "b_b2";
static const std::string DB_OLD_BEST_BLOCK2 = "b_b3";
const auto& consensusParams = Params().GetConsensus();
LOCK(cs_main);
LogPrintf("CDeterministicMNManager::%s -- upgrading DB to migrate MN type\n", __func__);
if (m_chainstate.m_chain.Tip() == nullptr) {
// should have no records
LogPrintf("CDeterministicMNManager::%s -- Chain empty. evoDB:%d.\n", __func__, m_evoDb.IsEmpty());
return m_evoDb.IsEmpty();
}
if (m_evoDb.GetRawDB().Exists(EVODB_BEST_BLOCK) || m_evoDb.GetRawDB().Exists(DB_OLD_BEST_BLOCK2)) {
if (EraseOldDBData(m_evoDb.GetRawDB(), {DB_OLD_LIST_DIFF, DB_OLD_LIST_SNAPSHOT})) {
// we messed up, make sure this time we actually drop old data
LogPrintf("CDeterministicMNManager::%s -- migration already done. cleaned old data.\n", __func__);
m_evoDb.GetRawDB().CompactFull();
LogPrintf("CDeterministicMNManager::%s -- done compacting database\n", __func__);
// flush it to disk
if (!m_evoDb.CommitRootTransaction()) {
LogPrintf("CDeterministicMNManager::%s -- failed to commit to evoDB\n", __func__);
return false;
}
} else {
LogPrintf("CDeterministicMNManager::%s -- migration already done. skipping.\n", __func__);
}
return true;
}
if (DeploymentActiveAt(*m_chainstate.m_chain.Tip(), consensusParams, Consensus::DEPLOYMENT_V19)) {
// too late
LogPrintf("CDeterministicMNManager::%s -- migration is not possible\n", __func__);
return false;
}
// Removing the old EVODB_BEST_BLOCK value early results in older version to crash immediately, even if the upgrade
// process is cancelled in-between. But if the new version sees that the old EVODB_BEST_BLOCK is already removed,
// then we must assume that the upgrade process was already running before but was interrupted.
if (m_chainstate.m_chain.Height() > 1 && !m_evoDb.GetRawDB().Exists(DB_OLD_BEST_BLOCK)) {
LogPrintf("CDeterministicMNManager::%s -- previous migration attempt failed.\n", __func__);
return false;
}
m_evoDb.GetRawDB().Erase(DB_OLD_BEST_BLOCK);
if (!DeploymentActiveAt(*m_chainstate.m_chain.Tip(), consensusParams, Consensus::DEPLOYMENT_DIP0003)) {
// not reached DIP3 height yet, so no upgrade needed
LogPrintf("CDeterministicMNManager::%s -- migration not needed. dip3 not reached\n", __func__);
auto dbTx = m_evoDb.BeginTransaction();
m_evoDb.WriteBestBlock(m_chainstate.m_chain.Tip()->GetBlockHash());
dbTx->Commit();
return true;
}
CDBBatch batch(m_evoDb.GetRawDB());
for (const auto nHeight : irange::range(Params().GetConsensus().DIP0003Height, m_chainstate.m_chain.Height() + 1)) {
auto pindex = m_chainstate.m_chain[nHeight];
// Unserialise CDeterministicMNListDiff using MN_OLD_FORMAT and set it's type to the default value TYPE_REGULAR_MASTERNODE
// It will be later written with format MN_CURRENT_FORMAT which includes the type field and MN state bls version.
CDataStream diff_data(SER_DISK, CLIENT_VERSION);
if (!m_evoDb.GetRawDB().ReadDataStream(std::make_pair(DB_OLD_LIST_DIFF, pindex->GetBlockHash()), diff_data)) {
LogPrintf("CDeterministicMNManager::%s -- missing CDeterministicMNListDiff at height %d\n", __func__, nHeight);
return false;
}
CDeterministicMNListDiff mndiff;
mndiff.Unserialize(diff_data, CDeterministicMN::MN_OLD_FORMAT);
batch.Write(std::make_pair(DB_LIST_DIFF, pindex->GetBlockHash()), mndiff);
CDataStream snapshot_data(SER_DISK, CLIENT_VERSION);
if (!m_evoDb.GetRawDB().ReadDataStream(std::make_pair(DB_OLD_LIST_SNAPSHOT, pindex->GetBlockHash()), snapshot_data)) {
// it's ok, we write snapshots every DISK_SNAPSHOT_PERIOD blocks only
continue;
}
CDeterministicMNList mnList;
mnList.Unserialize(snapshot_data, CDeterministicMN::MN_OLD_FORMAT);
batch.Write(std::make_pair(DB_LIST_SNAPSHOT, pindex->GetBlockHash()), mnList);
m_evoDb.GetRawDB().WriteBatch(batch);
batch.Clear();
LogPrintf("CDeterministicMNManager::%s -- wrote snapshot at height %d\n", __func__, nHeight);
}
m_evoDb.GetRawDB().WriteBatch(batch);
// Writing EVODB_BEST_BLOCK (which is b_b4 now) marks the DB as upgraded
auto dbTx = m_evoDb.BeginTransaction();
m_evoDb.WriteBestBlock(m_chainstate.m_chain.Tip()->GetBlockHash());
dbTx->Commit();
LogPrintf("CDeterministicMNManager::%s -- done migrating\n", __func__);
if (EraseOldDBData(m_evoDb.GetRawDB(), {DB_OLD_LIST_DIFF, DB_OLD_LIST_SNAPSHOT})) {
LogPrintf("CDeterministicMNManager::%s -- done cleaning old data\n", __func__);
}
m_evoDb.GetRawDB().CompactFull();
LogPrintf("CDeterministicMNManager::%s -- done compacting database\n", __func__);
// flush it to disk
if (!m_evoDb.CommitRootTransaction()) {
LogPrintf("CDeterministicMNManager::%s -- failed to commit to evoDB\n", __func__);
return false;
}
return true;
}
bool CDeterministicMNManager::MigrateDBIfNeeded2()
{
static const std::string DB_OLD_LIST_SNAPSHOT = "dmn_S2";
static const std::string DB_OLD_LIST_DIFF = "dmn_D2";
static const std::string DB_OLD_BEST_BLOCK = "b_b3";
const auto& consensusParams = Params().GetConsensus();
LOCK(cs_main);
LogPrintf("CDeterministicMNManager::%s -- upgrading DB to migrate MN state bls version\n", __func__);
if (m_chainstate.m_chain.Tip() == nullptr) {
// should have no records
LogPrintf("CDeterministicMNManager::%s -- Chain empty. evoDB:%d.\n", __func__, m_evoDb.IsEmpty());
return m_evoDb.IsEmpty();
}
if (m_evoDb.GetRawDB().Exists(EVODB_BEST_BLOCK)) {
if (EraseOldDBData(m_evoDb.GetRawDB(), {DB_OLD_LIST_DIFF, DB_OLD_LIST_SNAPSHOT})) {
// we messed up, make sure this time we actually drop old data
LogPrintf("CDeterministicMNManager::%s -- migration already done. cleaned old data.\n", __func__);
m_evoDb.GetRawDB().CompactFull();
LogPrintf("CDeterministicMNManager::%s -- done compacting database\n", __func__);
// flush it to disk
if (!m_evoDb.CommitRootTransaction()) {
LogPrintf("CDeterministicMNManager::%s -- failed to commit to evoDB\n", __func__);
return false;
}
} else {
LogPrintf("CDeterministicMNManager::%s -- migration already done. skipping.\n", __func__);
}
return true;
}
if (DeploymentActiveAt(*m_chainstate.m_chain.Tip(), consensusParams, Consensus::DEPLOYMENT_V19)) {
// too late
LogPrintf("CDeterministicMNManager::%s -- migration is not possible\n", __func__);
return false;
}
// Removing the old EVODB_BEST_BLOCK value early results in older version to crash immediately, even if the upgrade
// process is cancelled in-between. But if the new version sees that the old EVODB_BEST_BLOCK is already removed,
// then we must assume that the upgrade process was already running before but was interrupted.
if (m_chainstate.m_chain.Height() > 1 && !m_evoDb.GetRawDB().Exists(DB_OLD_BEST_BLOCK)) {
LogPrintf("CDeterministicMNManager::%s -- previous migration attempt failed.\n", __func__);
return false;
}
m_evoDb.GetRawDB().Erase(DB_OLD_BEST_BLOCK);
if (!DeploymentActiveAt(*m_chainstate.m_chain.Tip(), consensusParams, Consensus::DEPLOYMENT_DIP0003)) {
// not reached DIP3 height yet, so no upgrade needed
LogPrintf("CDeterministicMNManager::%s -- migration not needed. dip3 not reached\n", __func__);
auto dbTx = m_evoDb.BeginTransaction();
m_evoDb.WriteBestBlock(m_chainstate.m_chain.Tip()->GetBlockHash());
dbTx->Commit();
return true;
}
CDBBatch batch(m_evoDb.GetRawDB());
for (const auto nHeight : irange::range(Params().GetConsensus().DIP0003Height, m_chainstate.m_chain.Height() + 1)) {
auto pindex = m_chainstate.m_chain[nHeight];
// Unserialise CDeterministicMNListDiff using MN_TYPE_FORMAT and set MN state bls version to LEGACY_BLS_VERSION.
// It will be later written with format MN_CURRENT_FORMAT which includes the type field.
CDataStream diff_data(SER_DISK, CLIENT_VERSION);
if (!m_evoDb.GetRawDB().ReadDataStream(std::make_pair(DB_OLD_LIST_DIFF, pindex->GetBlockHash()), diff_data)) {
LogPrintf("CDeterministicMNManager::%s -- missing CDeterministicMNListDiff at height %d\n", __func__, nHeight);
return false;
}
CDeterministicMNListDiff mndiff;
mndiff.Unserialize(diff_data, CDeterministicMN::MN_TYPE_FORMAT);
batch.Write(std::make_pair(DB_LIST_DIFF, pindex->GetBlockHash()), mndiff);
CDataStream snapshot_data(SER_DISK, CLIENT_VERSION);
if (!m_evoDb.GetRawDB().ReadDataStream(std::make_pair(DB_OLD_LIST_SNAPSHOT, pindex->GetBlockHash()), snapshot_data)) {
// it's ok, we write snapshots every DISK_SNAPSHOT_PERIOD blocks only
continue;
}
CDeterministicMNList mnList;
mnList.Unserialize(snapshot_data, CDeterministicMN::MN_TYPE_FORMAT);
batch.Write(std::make_pair(DB_LIST_SNAPSHOT, pindex->GetBlockHash()), mnList);
m_evoDb.GetRawDB().WriteBatch(batch);
batch.Clear();
LogPrintf("CDeterministicMNManager::%s -- wrote snapshot at height %d\n", __func__, nHeight);
}
m_evoDb.GetRawDB().WriteBatch(batch);
// Writing EVODB_BEST_BLOCK (which is b_b4 now) marks the DB as upgraded
auto dbTx = m_evoDb.BeginTransaction();
m_evoDb.WriteBestBlock(m_chainstate.m_chain.Tip()->GetBlockHash());
dbTx->Commit();
LogPrintf("CDeterministicMNManager::%s -- done migrating\n", __func__);
if (EraseOldDBData(m_evoDb.GetRawDB(), {DB_OLD_LIST_DIFF, DB_OLD_LIST_SNAPSHOT})) {
LogPrintf("CDeterministicMNManager::%s -- done cleaning old data\n", __func__);
}
m_evoDb.GetRawDB().CompactFull();
LogPrintf("CDeterministicMNManager::%s -- done compacting database\n", __func__);
// flush it to disk
if (!m_evoDb.CommitRootTransaction()) {
LogPrintf("CDeterministicMNManager::%s -- failed to commit to evoDB\n", __func__);
return false;
}
return true;
}
template <typename ProTx>
static bool CheckService(const ProTx& proTx, TxValidationState& state)
{
if (!proTx.addr.IsValid()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-ipaddr");
}
if (Params().RequireRoutableExternalIP() && !proTx.addr.IsRoutable()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-ipaddr");
}
// TODO: use real args here
static int mainnetDefaultPort = CreateChainParams(ArgsManager{}, CBaseChainParams::MAIN)->GetDefaultPort();
if (Params().NetworkIDString() == CBaseChainParams::MAIN) {
if (proTx.addr.GetPort() != mainnetDefaultPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-ipaddr-port");
}
} else if (proTx.addr.GetPort() == mainnetDefaultPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-ipaddr-port");
}
if (!proTx.addr.IsIPv4()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-ipaddr");
}
return true;
}
template <typename ProTx>
static bool CheckPlatformFields(const ProTx& proTx, TxValidationState& state)
{
if (proTx.platformNodeID.IsNull()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-nodeid");
}
// TODO: use real args here
static int mainnetPlatformP2PPort = CreateChainParams(ArgsManager{}, CBaseChainParams::MAIN)->GetDefaultPlatformP2PPort();
if (Params().NetworkIDString() == CBaseChainParams::MAIN) {
if (proTx.platformP2PPort != mainnetPlatformP2PPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-p2p-port");
}
}
// TODO: use real args here
static int mainnetPlatformHTTPPort = CreateChainParams(ArgsManager{}, CBaseChainParams::MAIN)->GetDefaultPlatformHTTPPort();
if (Params().NetworkIDString() == CBaseChainParams::MAIN) {
if (proTx.platformHTTPPort != mainnetPlatformHTTPPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-http-port");
}
}
// TODO: use real args here
static int mainnetDefaultP2PPort = CreateChainParams(ArgsManager{}, CBaseChainParams::MAIN)->GetDefaultPort();
if (proTx.platformP2PPort == mainnetDefaultP2PPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-p2p-port");
}
if (proTx.platformHTTPPort == mainnetDefaultP2PPort) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-http-port");
}
if (proTx.platformP2PPort == proTx.platformHTTPPort ||
proTx.platformP2PPort == proTx.addr.GetPort() ||
proTx.platformHTTPPort == proTx.addr.GetPort()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-platform-dup-ports");
}
return true;
}
template <typename ProTx>
static bool CheckHashSig(const ProTx& proTx, const PKHash& pkhash, TxValidationState& state)
{
if (std::string strError; !CHashSigner::VerifyHash(::SerializeHash(proTx), ToKeyID(pkhash), proTx.vchSig, strError)) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-sig");
}
return true;
}
template <typename ProTx>
static bool CheckStringSig(const ProTx& proTx, const PKHash& pkhash, TxValidationState& state)
{
if (std::string strError; !CMessageSigner::VerifyMessage(ToKeyID(pkhash), proTx.vchSig, proTx.MakeSignString(), strError)) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-sig");
}
return true;
}
template <typename ProTx>
static bool CheckHashSig(const ProTx& proTx, const CBLSPublicKey& pubKey, TxValidationState& state)
{
if (!proTx.sig.VerifyInsecure(pubKey, ::SerializeHash(proTx))) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-sig");
}
return true;
}
template<typename ProTx>
static std::optional<ProTx> GetValidatedPayload(const CTransaction& tx, gsl::not_null<const CBlockIndex*> pindexPrev, TxValidationState& state)
{
if (tx.nType != ProTx::SPECIALTX_TYPE) {
state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-type");
return std::nullopt;
}
auto opt_ptx = GetTxPayload<ProTx>(tx);
if (!opt_ptx) {
state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-payload");
return std::nullopt;
}
const bool is_basic_scheme_active{DeploymentActiveAfter(pindexPrev, Params().GetConsensus(), Consensus::DEPLOYMENT_V19)};
if (!opt_ptx->IsTriviallyValid(is_basic_scheme_active, state)) {
// pass the state returned by the function above
return std::nullopt;
}
return opt_ptx;
}
bool CheckProRegTx(CDeterministicMNManager& dmnman, const CTransaction& tx, gsl::not_null<const CBlockIndex*> pindexPrev, TxValidationState& state, const CCoinsViewCache& view, bool check_sigs)
{
const auto opt_ptx = GetValidatedPayload<CProRegTx>(tx, pindexPrev, state);
if (!opt_ptx) {
// pass the state returned by the function above
return false;
}
// It's allowed to set addr to 0, which will put the MN into PoSe-banned state and require a ProUpServTx to be issues later
// If any of both is set, it must be valid however
if (opt_ptx->addr != CService() && !CheckService(*opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (opt_ptx->nType == MnType::Evo) {
if (!CheckPlatformFields(*opt_ptx, state)) {
return false;
}
}
CTxDestination collateralTxDest;
const PKHash *keyForPayloadSig = nullptr;
COutPoint collateralOutpoint;
CAmount expectedCollateral = GetMnType(opt_ptx->nType).collat_amount;
if (!opt_ptx->collateralOutpoint.hash.IsNull()) {
Coin coin;
if (!view.GetCoin(opt_ptx->collateralOutpoint, coin) || coin.IsSpent() || coin.out.nValue != expectedCollateral) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral");
}
if (!ExtractDestination(coin.out.scriptPubKey, collateralTxDest)) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-dest");
}
// Extract key from collateral. This only works for P2PK and P2PKH collaterals and will fail for P2SH.
// Issuer of this ProRegTx must prove ownership with this key by signing the ProRegTx
keyForPayloadSig = std::get_if<PKHash>(&collateralTxDest);
if (!keyForPayloadSig) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-pkh");
}
collateralOutpoint = opt_ptx->collateralOutpoint;
} else {
if (opt_ptx->collateralOutpoint.n >= tx.vout.size()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-index");
}
if (tx.vout[opt_ptx->collateralOutpoint.n].nValue != expectedCollateral) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral");
}
if (!ExtractDestination(tx.vout[opt_ptx->collateralOutpoint.n].scriptPubKey, collateralTxDest)) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-dest");
}
collateralOutpoint = COutPoint(tx.GetHash(), opt_ptx->collateralOutpoint.n);
}
// don't allow reuse of collateral key for other keys (don't allow people to put the collateral key onto an online server)
// this check applies to internal and external collateral, but internal collaterals are not necessarily a P2PKH
if (collateralTxDest == CTxDestination(PKHash(opt_ptx->keyIDOwner)) || collateralTxDest == CTxDestination(PKHash(opt_ptx->keyIDVoting))) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-reuse");
}
if (pindexPrev) {
auto mnList = dmnman.GetListForBlock(pindexPrev);
// only allow reusing of addresses when it's for the same collateral (which replaces the old MN)
if (mnList.HasUniqueProperty(opt_ptx->addr) && mnList.GetUniquePropertyMN(opt_ptx->addr)->collateralOutpoint != collateralOutpoint) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-addr");
}
// never allow duplicate keys, even if this ProTx would replace an existing MN
if (mnList.HasUniqueProperty(opt_ptx->keyIDOwner) || mnList.HasUniqueProperty(opt_ptx->pubKeyOperator)) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-key");
}
// never allow duplicate platformNodeIds for EvoNodes
if (opt_ptx->nType == MnType::Evo) {
if (mnList.HasUniqueProperty(opt_ptx->platformNodeID)) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-platformnodeid");
}
}
if (!DeploymentDIP0003Enforced(pindexPrev->nHeight, Params().GetConsensus())) {
if (opt_ptx->keyIDOwner != opt_ptx->keyIDVoting) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-key-not-same");
}
}
}
if (!CheckInputsHash(tx, *opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (keyForPayloadSig) {
// collateral is not part of this ProRegTx, so we must verify ownership of the collateral
if (check_sigs && !CheckStringSig(*opt_ptx, *keyForPayloadSig, state)) {
// pass the state returned by the function above
return false;
}
} else {
// collateral is part of this ProRegTx, so we know the collateral is owned by the issuer
if (!opt_ptx->vchSig.empty()) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-sig");
}
}
return true;
}
bool CheckProUpServTx(CDeterministicMNManager& dmnman, const CTransaction& tx, gsl::not_null<const CBlockIndex*> pindexPrev, TxValidationState& state, bool check_sigs)
{
const auto opt_ptx = GetValidatedPayload<CProUpServTx>(tx, pindexPrev, state);
if (!opt_ptx) {
// pass the state returned by the function above
return false;
}
if (!CheckService(*opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (opt_ptx->nType == MnType::Evo) {
if (!CheckPlatformFields(*opt_ptx, state)) {
return false;
}
}
auto mnList = dmnman.GetListForBlock(pindexPrev);
auto mn = mnList.GetMN(opt_ptx->proTxHash);
if (!mn) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-hash");
}
// don't allow updating to addresses already used by other MNs
if (mnList.HasUniqueProperty(opt_ptx->addr) && mnList.GetUniquePropertyMN(opt_ptx->addr)->proTxHash != opt_ptx->proTxHash) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-addr");
}
// don't allow updating to platformNodeIds already used by other EvoNodes
if (opt_ptx->nType == MnType::Evo) {
if (mnList.HasUniqueProperty(opt_ptx->platformNodeID) && mnList.GetUniquePropertyMN(opt_ptx->platformNodeID)->proTxHash != opt_ptx->proTxHash) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-platformnodeid");
}
}
if (opt_ptx->scriptOperatorPayout != CScript()) {
if (mn->nOperatorReward == 0) {
// don't allow setting operator reward payee in case no operatorReward was set
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-operator-payee");
}
if (!opt_ptx->scriptOperatorPayout.IsPayToPublicKeyHash() && !opt_ptx->scriptOperatorPayout.IsPayToScriptHash()) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-operator-payee");
}
}
// we can only check the signature if pindexPrev != nullptr and the MN is known
if (!CheckInputsHash(tx, *opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (check_sigs && !CheckHashSig(*opt_ptx, mn->pdmnState->pubKeyOperator.Get(), state)) {
// pass the state returned by the function above
return false;
}
return true;
}
bool CheckProUpRegTx(CDeterministicMNManager& dmnman, const CTransaction& tx, gsl::not_null<const CBlockIndex*> pindexPrev, TxValidationState& state, const CCoinsViewCache& view, bool check_sigs)
{
const auto opt_ptx = GetValidatedPayload<CProUpRegTx>(tx, pindexPrev, state);
if (!opt_ptx) {
// pass the state returned by the function above
return false;
}
CTxDestination payoutDest;
if (!ExtractDestination(opt_ptx->scriptPayout, payoutDest)) {
// should not happen as we checked script types before
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-payee-dest");
}
auto mnList = dmnman.GetListForBlock(pindexPrev);
auto dmn = mnList.GetMN(opt_ptx->proTxHash);
if (!dmn) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-hash");
}
// don't allow reuse of payee key for other keys (don't allow people to put the payee key onto an online server)
if (payoutDest == CTxDestination(PKHash(dmn->pdmnState->keyIDOwner)) || payoutDest == CTxDestination(PKHash(opt_ptx->keyIDVoting))) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-payee-reuse");
}
Coin coin;
if (!view.GetCoin(dmn->collateralOutpoint, coin) || coin.IsSpent()) {
// this should never happen (there would be no dmn otherwise)
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-collateral");
}
// don't allow reuse of collateral key for other keys (don't allow people to put the collateral key onto an online server)
CTxDestination collateralTxDest;
if (!ExtractDestination(coin.out.scriptPubKey, collateralTxDest)) {
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-collateral-dest");
}
if (collateralTxDest == CTxDestination(PKHash(dmn->pdmnState->keyIDOwner)) || collateralTxDest == CTxDestination(PKHash(opt_ptx->keyIDVoting))) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-collateral-reuse");
}
if (mnList.HasUniqueProperty(opt_ptx->pubKeyOperator)) {
auto otherDmn = mnList.GetUniquePropertyMN(opt_ptx->pubKeyOperator);
if (opt_ptx->proTxHash != otherDmn->proTxHash) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-dup-key");
}
}
if (!DeploymentDIP0003Enforced(pindexPrev->nHeight, Params().GetConsensus())) {
if (dmn->pdmnState->keyIDOwner != opt_ptx->keyIDVoting) {
return state.Invalid(TxValidationResult::TX_BAD_SPECIAL, "bad-protx-key-not-same");
}
}
if (!CheckInputsHash(tx, *opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (check_sigs && !CheckHashSig(*opt_ptx, PKHash(dmn->pdmnState->keyIDOwner), state)) {
// pass the state returned by the function above
return false;
}
return true;
}
bool CheckProUpRevTx(CDeterministicMNManager& dmnman, const CTransaction& tx, gsl::not_null<const CBlockIndex*> pindexPrev, TxValidationState& state, bool check_sigs)
{
const auto opt_ptx = GetValidatedPayload<CProUpRevTx>(tx, pindexPrev, state);
if (!opt_ptx) {
// pass the state returned by the function above
return false;
}
auto mnList = dmnman.GetListForBlock(pindexPrev);
auto dmn = mnList.GetMN(opt_ptx->proTxHash);
if (!dmn)
return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-protx-hash");
if (!CheckInputsHash(tx, *opt_ptx, state)) {
// pass the state returned by the function above
return false;
}
if (check_sigs && !CheckHashSig(*opt_ptx, dmn->pdmnState->pubKeyOperator.Get(), state)) {
// pass the state returned by the function above
return false;
}
return true;
}
//end
void CDeterministicMNManager::DoMaintenance() {
LOCK(cs_cleanup);
int loc_to_cleanup = to_cleanup.load();
if (loc_to_cleanup <= did_cleanup) return;
LOCK(cs);
CleanupCache(loc_to_cleanup);
did_cleanup = loc_to_cleanup;
}
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