refactor: remove dependency of QuorumBlockProcessor on PeerManager

src/llmq/blockprocessor.cpp

@@ -16,7 +16,6 @@
 #include <consensus/validation.h>
 #include <deploymentstatus.h>
 #include <net.h>
-#include <net_processing.h>
 #include <primitives/block.h>
 #include <primitives/transaction.h>
 #include <saltedhasher.h>
@@ -44,14 +43,16 @@ static const std::string DB_MINED_COMMITMENT_BY_INVERSED_HEIGHT_Q_INDEXED = "q_m
 
 static const std::string DB_BEST_BLOCK_UPGRADE = "q_bbu2";
 
-CQuorumBlockProcessor::CQuorumBlockProcessor(CChainState& chainstate, CDeterministicMNManager& dmnman, CEvoDB& evoDb,
+CQuorumBlockProcessor::CQuorumBlockProcessor(CChainState& chainstate, CDeterministicMNManager& dmnman, CEvoDB& evoDb) :
-                                             const std::unique_ptr<PeerManager>& peerman) :
+    m_chainstate(chainstate),
-    m_chainstate(chainstate), m_dmnman(dmnman), m_evoDb(evoDb), m_peerman(peerman)
+    m_dmnman(dmnman),
+    m_evoDb(evoDb)
 {
     utils::InitQuorumsCache(mapHasMinedCommitmentCache);
 }
 
-PeerMsgRet CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_view msg_type, CDataStream& vRecv)
+MessageProcessingResult CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_view msg_type,
+                                                              CDataStream& vRecv)
 {
     if (msg_type != NetMsgType::QFCOMMITMENT) {
         return {};
@@ -60,19 +61,21 @@ PeerMsgRet CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_
     CFinalCommitment qc;
     vRecv >> qc;
 
-    WITH_LOCK(::cs_main, Assert(m_peerman)->EraseObjectRequest(peer.GetId(),
+    MessageProcessingResult ret;
-                                                               CInv(MSG_QUORUM_FINAL_COMMITMENT, ::SerializeHash(qc))));
+    ret.m_to_erase = CInv{MSG_QUORUM_FINAL_COMMITMENT, ::SerializeHash(qc)};
 
     if (qc.IsNull()) {
         LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- null commitment from peer=%d\n", __func__, peer.GetId());
-        return tl::unexpected{100};
+        ret.m_error = MisbehavingError{100};
+        return ret;
     }
 
     const auto& llmq_params_opt = Params().GetLLMQ(qc.llmqType);
     if (!llmq_params_opt.has_value()) {
         LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- invalid commitment type %d from peer=%d\n", __func__,
                  ToUnderlying(qc.llmqType), peer.GetId());
-        return tl::unexpected{100};
+        ret.m_error = MisbehavingError{100};
+        return ret;
     }
     auto type = qc.llmqType;
 
@@ -86,32 +89,33 @@ PeerMsgRet CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_
                      qc.quorumHash.ToString(), peer.GetId());
             // can't really punish the node here, as we might simply be the one that is on the wrong chain or not
             // fully synced
-            return {};
+            return ret;
         }
         if (m_chainstate.m_chain.Tip()->GetAncestor(pQuorumBaseBlockIndex->nHeight) != pQuorumBaseBlockIndex) {
             LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- block %s not in active chain, peer=%d\n", __func__,
                      qc.quorumHash.ToString(), peer.GetId());
             // same, can't punish
-            return {};
+            return ret;
         }
         if (int quorumHeight = pQuorumBaseBlockIndex->nHeight - (pQuorumBaseBlockIndex->nHeight % llmq_params_opt->dkgInterval) + int(qc.quorumIndex);
                 quorumHeight != pQuorumBaseBlockIndex->nHeight) {
             LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- block %s is not the first block in the DKG interval, peer=%d\n", __func__,
                      qc.quorumHash.ToString(), peer.GetId());
-            return tl::unexpected{100};
+            ret.m_error = MisbehavingError{100};
+            return ret;
         }
         if (pQuorumBaseBlockIndex->nHeight < (m_chainstate.m_chain.Height() - llmq_params_opt->dkgInterval)) {
             LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- block %s is too old, peer=%d\n", __func__,
                      qc.quorumHash.ToString(), peer.GetId());
             // TODO: enable punishment in some future version when all/most nodes are running with this fix
-            // return tl::unexpected{100};
+            // ret.m_error = MisbehavingError{100};
-            return {};
+            return ret;
         }
         if (HasMinedCommitment(type, qc.quorumHash)) {
             LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- commitment for quorum hash[%s], type[%d], quorumIndex[%d] is already mined, peer=%d\n",
                      __func__, qc.quorumHash.ToString(), ToUnderlying(type), qc.quorumIndex, peer.GetId());
             // NOTE: do not punish here
-            return {};
+            return ret;
         }
     }
 
@@ -124,7 +128,7 @@ PeerMsgRet CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_
         if (it != minableCommitmentsByQuorum.end()) {
             auto jt = minableCommitments.find(it->second);
             if (jt != minableCommitments.end() && jt->second.CountSigners() <= qc.CountSigners()) {
-                return {};
+                return ret;
             }
         }
     }
@@ -133,14 +137,15 @@ PeerMsgRet CQuorumBlockProcessor::ProcessMessage(const CNode& peer, std::string_
         LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- commitment for quorum %s:%d is not valid quorumIndex[%d] nversion[%d], peer=%d\n",
                  __func__, qc.quorumHash.ToString(),
                  ToUnderlying(qc.llmqType), qc.quorumIndex, qc.nVersion, peer.GetId());
-        return tl::unexpected{100};
+        ret.m_error = MisbehavingError{100};
+        return ret;
     }
 
     LogPrint(BCLog::LLMQ, "CQuorumBlockProcessor::%s -- received commitment for quorum %s:%d, validMembers=%d, signers=%d, peer=%d\n", __func__,
              qc.quorumHash.ToString(), ToUnderlying(qc.llmqType), qc.CountValidMembers(), qc.CountSigners(), peer.GetId());
 
-    AddMineableCommitmentAndRelay(qc);
+    ret.m_inventory = AddMineableCommitment(qc);
-    return {};
+    return ret;
 }
 
 bool CQuorumBlockProcessor::ProcessBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindex, BlockValidationState& state, bool fJustCheck, bool fBLSChecks)
@@ -637,7 +642,7 @@ bool CQuorumBlockProcessor::HasMineableCommitment(const uint256& hash) const
     return minableCommitments.count(hash) != 0;
 }
 
-std::optional<uint256> CQuorumBlockProcessor::AddMineableCommitment(const CFinalCommitment& fqc)
+std::optional<CInv> CQuorumBlockProcessor::AddMineableCommitment(const CFinalCommitment& fqc)
 {
     const uint256 commitmentHash = ::SerializeHash(fqc);
 
@@ -663,17 +668,7 @@ std::optional<uint256> CQuorumBlockProcessor::AddMineableCommitment(const CFinal
         return false;
     }();
 
-    return relay ? std::make_optional(commitmentHash) : std::nullopt;
+    return relay ? std::make_optional(CInv{MSG_QUORUM_FINAL_COMMITMENT, commitmentHash}) : std::nullopt;
-}
-
-void CQuorumBlockProcessor::AddMineableCommitmentAndRelay(const CFinalCommitment& fqc)
-{
-    const auto commitmentHashOpt = AddMineableCommitment(fqc);
-    // We only relay the new commitment if it's new or better then the old one
-    if (commitmentHashOpt) {
-        CInv inv(MSG_QUORUM_FINAL_COMMITMENT, *commitmentHashOpt);
-        Assert(m_peerman)->RelayInv(inv);
-    }
 }
 
 bool CQuorumBlockProcessor::GetMineableCommitmentByHash(const uint256& commitmentHash, llmq::CFinalCommitment& ret) const

src/llmq/blockprocessor.h

@@ -26,7 +26,6 @@ class CDataStream;
 class CDeterministicMNManager;
 class CEvoDB;
 class CNode;
-class PeerManager;
 
 extern RecursiveMutex cs_main;
 
@@ -42,7 +41,6 @@ private:
     CChainState& m_chainstate;
     CDeterministicMNManager& m_dmnman;
     CEvoDB& m_evoDb;
-    const std::unique_ptr<PeerManager>& m_peerman;
 
     mutable Mutex minableCommitmentsCs;
     std::map<std::pair<Consensus::LLMQType, uint256>, uint256> minableCommitmentsByQuorum GUARDED_BY(minableCommitmentsCs);
@@ -51,15 +49,15 @@ private:
     mutable std::map<Consensus::LLMQType, unordered_lru_cache<uint256, bool, StaticSaltedHasher>> mapHasMinedCommitmentCache GUARDED_BY(minableCommitmentsCs);
 
 public:
-    explicit CQuorumBlockProcessor(CChainState& chainstate, CDeterministicMNManager& dmnman, CEvoDB& evoDb,
+    explicit CQuorumBlockProcessor(CChainState& chainstate, CDeterministicMNManager& dmnman, CEvoDB& evoDb);
-                                   const std::unique_ptr<PeerManager>& peerman);
 
-    PeerMsgRet ProcessMessage(const CNode& peer, std::string_view msg_type, CDataStream& vRecv);
+    MessageProcessingResult ProcessMessage(const CNode& peer, std::string_view msg_type, CDataStream& vRecv);
 
     bool ProcessBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindex, BlockValidationState& state, bool fJustCheck, bool fBLSChecks) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     bool UndoBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindex) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
-    void AddMineableCommitmentAndRelay(const CFinalCommitment& fqc);
+    //! it returns hash of commitment if it should be relay, otherwise nullopt
+    std::optional<CInv> AddMineableCommitment(const CFinalCommitment& fqc);
     bool HasMineableCommitment(const uint256& hash) const;
     bool GetMineableCommitmentByHash(const uint256& commitmentHash, CFinalCommitment& ret) const;
     std::optional<std::vector<CFinalCommitment>> GetMineableCommitments(const Consensus::LLMQParams& llmqParams, int nHeight) const EXCLUSIVE_LOCKS_REQUIRED(cs_main);
@@ -74,8 +72,6 @@ public:
     std::vector<std::pair<int, const CBlockIndex*>> GetLastMinedCommitmentsPerQuorumIndexUntilBlock(Consensus::LLMQType llmqType, const CBlockIndex* pindex, size_t cycle) const;
     std::optional<const CBlockIndex*> GetLastMinedCommitmentsByQuorumIndexUntilBlock(Consensus::LLMQType llmqType, const CBlockIndex* pindex, int quorumIndex, size_t cycle) const;
 private:
-    //! it returns hash of commitment if it should be relay, otherwise nullopt
-    std::optional<uint256> AddMineableCommitment(const CFinalCommitment& fqc);
     static bool GetCommitmentsFromBlock(const CBlock& block, gsl::not_null<const CBlockIndex*> pindex, std::multimap<Consensus::LLMQType, CFinalCommitment>& ret, BlockValidationState& state) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     bool ProcessCommitment(int nHeight, const uint256& blockHash, const CFinalCommitment& qc, BlockValidationState& state, bool fJustCheck, bool fBLSChecks) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
     static bool IsMiningPhase(const Consensus::LLMQParams& llmqParams, const CChain& active_chain, int nHeight) EXCLUSIVE_LOCKS_REQUIRED(cs_main);

src/llmq/context.cpp

@@ -25,7 +25,7 @@ LLMQContext::LLMQContext(CChainState& chainstate, CConnman& connman, CDeterminis
     is_masternode{mn_activeman != nullptr},
     bls_worker{std::make_shared<CBLSWorker>()},
     dkg_debugman{std::make_unique<llmq::CDKGDebugManager>()},
-    quorum_block_processor{std::make_unique<llmq::CQuorumBlockProcessor>(chainstate, dmnman, evo_db, peerman)},
+    quorum_block_processor{std::make_unique<llmq::CQuorumBlockProcessor>(chainstate, dmnman, evo_db)},
     qdkgsman{std::make_unique<llmq::CDKGSessionManager>(*bls_worker, chainstate, connman, dmnman, *dkg_debugman,
                                                         mn_metaman, *quorum_block_processor, mn_activeman, sporkman,
                                                         peerman, unit_tests, wipe)},

src/llmq/dkgsessionhandler.cpp

@@ -612,7 +612,9 @@ void CDKGSessionHandler::HandleDKGRound()
 
     auto finalCommitments = curSession->FinalizeCommitments();
     for (const auto& fqc : finalCommitments) {
-        quorumBlockProcessor.AddMineableCommitmentAndRelay(fqc);
+        if (auto inv_opt = quorumBlockProcessor.AddMineableCommitment(fqc); inv_opt.has_value()) {
+            Assert(m_peerman.get())->RelayInv(inv_opt.value());
+        }
     }
 }
 

src/net_processing.cpp

@@ -3310,13 +3310,16 @@ void PeerManagerImpl::ProcessPeerMsgRet(const PeerMsgRet& ret, CNode& pfrom)
     if (!ret) Misbehaving(pfrom.GetId(), ret.error().score, ret.error().message);
 }
 
-void PeerManagerImpl::PostProcessMessage(MessageProcessingResult&& ret, NodeId node)
+void PeerManagerImpl::PostProcessMessage(MessageProcessingResult&& result, NodeId node)
 {
-    if (ret.m_error) {
+    if (result.m_error) {
-        Misbehaving(node, ret.m_error->score, ret.m_error->message);
+        Misbehaving(node, result.m_error->score, result.m_error->message);
     }
-    if (ret.m_inventory) {
+    if (result.m_to_erase) {
-        RelayInv(ret.m_inventory.value(), MIN_PEER_PROTO_VERSION);
+        WITH_LOCK(cs_main, EraseObjectRequest(node, result.m_to_erase.value()));
+    }
+    if (result.m_inventory) {
+        RelayInv(result.m_inventory.value(), MIN_PEER_PROTO_VERSION);
     }
 }
 
@@ -4994,7 +4997,7 @@ void PeerManagerImpl::ProcessMessage(
         m_mn_sync.ProcessMessage(pfrom, msg_type, vRecv);
         ProcessPeerMsgRet(m_govman.ProcessMessage(pfrom, m_connman, *this, msg_type, vRecv), pfrom);
         ProcessPeerMsgRet(CMNAuth::ProcessMessage(pfrom, peer->m_their_services, m_connman, m_mn_metaman, m_mn_activeman, m_chainman.ActiveChain(), m_mn_sync, m_dmnman->GetListAtChainTip(), msg_type, vRecv), pfrom);
-        ProcessPeerMsgRet(m_llmq_ctx->quorum_block_processor->ProcessMessage(pfrom, msg_type, vRecv), pfrom);
+        PostProcessMessage(m_llmq_ctx->quorum_block_processor->ProcessMessage(pfrom, msg_type, vRecv), pfrom.GetId());
         ProcessPeerMsgRet(m_llmq_ctx->qdkgsman->ProcessMessage(pfrom, this, is_masternode, msg_type, vRecv), pfrom);
         ProcessPeerMsgRet(m_llmq_ctx->qman->ProcessMessage(pfrom, msg_type, vRecv), pfrom);
         m_llmq_ctx->shareman->ProcessMessage(pfrom, m_sporkman, msg_type, vRecv);

src/protocol.h

@@ -585,6 +585,7 @@ struct MessageProcessingResult
 {
     std::optional<MisbehavingError> m_error;
     std::optional<CInv> m_inventory;
+    std::optional<CInv> m_to_erase;
 
     MessageProcessingResult() = default;
     MessageProcessingResult(MisbehavingError error) :

test/lint/lint-circular-dependencies.sh

@@ -89,13 +89,9 @@ EXPECTED_CIRCULAR_DEPENDENCIES=(
     "coinjoin/context -> coinjoin/server -> net_processing -> coinjoin/context"
     "coinjoin/server -> net_processing -> coinjoin/server"
     "llmq/context -> llmq/ehf_signals -> net_processing -> llmq/context"
-    "llmq/blockprocessor -> net_processing -> llmq/blockprocessor"
     "llmq/chainlocks -> llmq/instantsend -> net_processing -> llmq/chainlocks"
     "net_processing -> spork -> net_processing"
-    "evo/simplifiedmns -> llmq/blockprocessor -> net_processing -> evo/simplifiedmns"
     "governance/governance -> net_processing -> governance/governance"
-    "llmq/blockprocessor -> net_processing -> llmq/context -> llmq/blockprocessor"
-    "llmq/blockprocessor -> net_processing -> llmq/quorums -> llmq/blockprocessor"
     "rpc/blockchain -> rpc/server -> rpc/blockchain"
 )