diff options
Diffstat (limited to 'src/net.cpp')
-rw-r--r-- | src/net.cpp | 316 |
1 files changed, 154 insertions, 162 deletions
diff --git a/src/net.cpp b/src/net.cpp index ea3840a708..682f47bff2 100644 --- a/src/net.cpp +++ b/src/net.cpp @@ -1,26 +1,24 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2016 The Bitcoin Core developers +// Copyright (c) 2009-2017 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #if defined(HAVE_CONFIG_H) -#include "config/bitcoin-config.h" +#include <config/bitcoin-config.h> #endif -#include "net.h" - -#include "addrman.h" -#include "chainparams.h" -#include "clientversion.h" -#include "consensus/consensus.h" -#include "crypto/common.h" -#include "crypto/sha256.h" -#include "hash.h" -#include "primitives/transaction.h" -#include "netbase.h" -#include "scheduler.h" -#include "ui_interface.h" -#include "utilstrencodings.h" +#include <net.h> + +#include <chainparams.h> +#include <clientversion.h> +#include <consensus/consensus.h> +#include <crypto/common.h> +#include <crypto/sha256.h> +#include <primitives/transaction.h> +#include <netbase.h> +#include <scheduler.h> +#include <ui_interface.h> +#include <utilstrencodings.h> #ifdef WIN32 #include <string.h> @@ -110,13 +108,13 @@ bool GetLocal(CService& addr, const CNetAddr *paddrPeer) int nBestReachability = -1; { LOCK(cs_mapLocalHost); - for (std::map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++) + for (const auto& entry : mapLocalHost) { - int nScore = (*it).second.nScore; - int nReachability = (*it).first.GetReachabilityFrom(paddrPeer); + int nScore = entry.second.nScore; + int nReachability = entry.first.GetReachabilityFrom(paddrPeer); if (nReachability > nBestReachability || (nReachability == nBestReachability && nScore > nBestScore)) { - addr = CService((*it).first, (*it).second.nPort); + addr = CService(entry.first, entry.second.nPort); nBestReachability = nReachability; nBestScore = nScore; } @@ -417,40 +415,48 @@ CNode* CConnman::ConnectNode(CAddress addrConnect, const char *pszDest, bool fCo if (addrConnect.IsValid()) { bool proxyConnectionFailed = false; - if (GetProxy(addrConnect.GetNetwork(), proxy)) + if (GetProxy(addrConnect.GetNetwork(), proxy)) { + hSocket = CreateSocket(proxy.proxy); + if (hSocket == INVALID_SOCKET) { + return nullptr; + } connected = ConnectThroughProxy(proxy, addrConnect.ToStringIP(), addrConnect.GetPort(), hSocket, nConnectTimeout, &proxyConnectionFailed); - else // no proxy needed (none set for target network) + } else { + // no proxy needed (none set for target network) + hSocket = CreateSocket(addrConnect); + if (hSocket == INVALID_SOCKET) { + return nullptr; + } connected = ConnectSocketDirectly(addrConnect, hSocket, nConnectTimeout); + } if (!proxyConnectionFailed) { // If a connection to the node was attempted, and failure (if any) is not caused by a problem connecting to // the proxy, mark this as an attempt. addrman.Attempt(addrConnect, fCountFailure); } } else if (pszDest && GetNameProxy(proxy)) { + hSocket = CreateSocket(proxy.proxy); + if (hSocket == INVALID_SOCKET) { + return nullptr; + } std::string host; int port = default_port; SplitHostPort(std::string(pszDest), port, host); connected = ConnectThroughProxy(proxy, host, port, hSocket, nConnectTimeout, nullptr); } - if (connected) { - if (!IsSelectableSocket(hSocket)) { - LogPrintf("Cannot create connection: non-selectable socket created (fd >= FD_SETSIZE ?)\n"); - CloseSocket(hSocket); - return nullptr; - } - - // Add node - NodeId id = GetNewNodeId(); - uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize(); - CAddress addr_bind = GetBindAddress(hSocket); - CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), nonce, addr_bind, pszDest ? pszDest : "", false); - pnode->nServicesExpected = ServiceFlags(addrConnect.nServices & nRelevantServices); - pnode->AddRef(); - - return pnode; + if (!connected) { + CloseSocket(hSocket); + return nullptr; } - return nullptr; + // Add node + NodeId id = GetNewNodeId(); + uint64_t nonce = GetDeterministicRandomizer(RANDOMIZER_ID_LOCALHOSTNONCE).Write(id).Finalize(); + CAddress addr_bind = GetBindAddress(hSocket); + CNode* pnode = new CNode(id, nLocalServices, GetBestHeight(), hSocket, addrConnect, CalculateKeyedNetGroup(addrConnect), nonce, addr_bind, pszDest ? pszDest : "", false); + pnode->AddRef(); + + return pnode; } void CConnman::DumpBanlist() @@ -597,21 +603,28 @@ void CConnman::SetBanned(const banmap_t &banMap) void CConnman::SweepBanned() { int64_t now = GetTime(); - - LOCK(cs_setBanned); - banmap_t::iterator it = setBanned.begin(); - while(it != setBanned.end()) + bool notifyUI = false; { - CSubNet subNet = (*it).first; - CBanEntry banEntry = (*it).second; - if(now > banEntry.nBanUntil) + LOCK(cs_setBanned); + banmap_t::iterator it = setBanned.begin(); + while(it != setBanned.end()) { - setBanned.erase(it++); - setBannedIsDirty = true; - LogPrint(BCLog::NET, "%s: Removed banned node ip/subnet from banlist.dat: %s\n", __func__, subNet.ToString()); + CSubNet subNet = (*it).first; + CBanEntry banEntry = (*it).second; + if(now > banEntry.nBanUntil) + { + setBanned.erase(it++); + setBannedIsDirty = true; + notifyUI = true; + LogPrint(BCLog::NET, "%s: Removed banned node ip/subnet from banlist.dat: %s\n", __func__, subNet.ToString()); + } + else + ++it; } - else - ++it; + } + // update UI + if(notifyUI && clientInterface) { + clientInterface->BannedListChanged(); } } @@ -685,7 +698,7 @@ void CNode::copyStats(CNodeStats &stats) X(cleanSubVer); } X(fInbound); - X(fAddnode); + X(m_manual_connection); X(nStartingHeight); { LOCK(cs_vSend); @@ -962,6 +975,16 @@ static bool CompareNodeTXTime(const NodeEvictionCandidate &a, const NodeEviction return a.nTimeConnected > b.nTimeConnected; } + +//! Sort an array by the specified comparator, then erase the last K elements. +template<typename T, typename Comparator> +static void EraseLastKElements(std::vector<T> &elements, Comparator comparator, size_t k) +{ + std::sort(elements.begin(), elements.end(), comparator); + size_t eraseSize = std::min(k, elements.size()); + elements.erase(elements.end() - eraseSize, elements.end()); +} + /** Try to find a connection to evict when the node is full. * Extreme care must be taken to avoid opening the node to attacker * triggered network partitioning. @@ -985,48 +1008,29 @@ bool CConnman::AttemptToEvictConnection() continue; NodeEvictionCandidate candidate = {node->GetId(), node->nTimeConnected, node->nMinPingUsecTime, node->nLastBlockTime, node->nLastTXTime, - (node->nServices & nRelevantServices) == nRelevantServices, + HasAllDesirableServiceFlags(node->nServices), node->fRelayTxes, node->pfilter != nullptr, node->addr, node->nKeyedNetGroup}; vEvictionCandidates.push_back(candidate); } } - if (vEvictionCandidates.empty()) return false; - // Protect connections with certain characteristics // Deterministically select 4 peers to protect by netgroup. // An attacker cannot predict which netgroups will be protected - std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), CompareNetGroupKeyed); - vEvictionCandidates.erase(vEvictionCandidates.end() - std::min(4, static_cast<int>(vEvictionCandidates.size())), vEvictionCandidates.end()); - - if (vEvictionCandidates.empty()) return false; - + EraseLastKElements(vEvictionCandidates, CompareNetGroupKeyed, 4); // Protect the 8 nodes with the lowest minimum ping time. // An attacker cannot manipulate this metric without physically moving nodes closer to the target. - std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), ReverseCompareNodeMinPingTime); - vEvictionCandidates.erase(vEvictionCandidates.end() - std::min(8, static_cast<int>(vEvictionCandidates.size())), vEvictionCandidates.end()); - - if (vEvictionCandidates.empty()) return false; - + EraseLastKElements(vEvictionCandidates, ReverseCompareNodeMinPingTime, 8); // Protect 4 nodes that most recently sent us transactions. // An attacker cannot manipulate this metric without performing useful work. - std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), CompareNodeTXTime); - vEvictionCandidates.erase(vEvictionCandidates.end() - std::min(4, static_cast<int>(vEvictionCandidates.size())), vEvictionCandidates.end()); - - if (vEvictionCandidates.empty()) return false; - + EraseLastKElements(vEvictionCandidates, CompareNodeTXTime, 4); // Protect 4 nodes that most recently sent us blocks. // An attacker cannot manipulate this metric without performing useful work. - std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), CompareNodeBlockTime); - vEvictionCandidates.erase(vEvictionCandidates.end() - std::min(4, static_cast<int>(vEvictionCandidates.size())), vEvictionCandidates.end()); - - if (vEvictionCandidates.empty()) return false; - + EraseLastKElements(vEvictionCandidates, CompareNodeBlockTime, 4); // Protect the half of the remaining nodes which have been connected the longest. // This replicates the non-eviction implicit behavior, and precludes attacks that start later. - std::sort(vEvictionCandidates.begin(), vEvictionCandidates.end(), ReverseCompareNodeTimeConnected); - vEvictionCandidates.erase(vEvictionCandidates.end() - static_cast<int>(vEvictionCandidates.size() / 2), vEvictionCandidates.end()); + EraseLastKElements(vEvictionCandidates, ReverseCompareNodeTimeConnected, vEvictionCandidates.size() / 2); if (vEvictionCandidates.empty()) return false; @@ -1037,12 +1041,12 @@ bool CConnman::AttemptToEvictConnection() int64_t nMostConnectionsTime = 0; std::map<uint64_t, std::vector<NodeEvictionCandidate> > mapNetGroupNodes; for (const NodeEvictionCandidate &node : vEvictionCandidates) { - mapNetGroupNodes[node.nKeyedNetGroup].push_back(node); - int64_t grouptime = mapNetGroupNodes[node.nKeyedNetGroup][0].nTimeConnected; - size_t groupsize = mapNetGroupNodes[node.nKeyedNetGroup].size(); + std::vector<NodeEvictionCandidate> &group = mapNetGroupNodes[node.nKeyedNetGroup]; + group.push_back(node); + int64_t grouptime = group[0].nTimeConnected; - if (groupsize > nMostConnections || (groupsize == nMostConnections && grouptime > nMostConnectionsTime)) { - nMostConnections = groupsize; + if (group.size() > nMostConnections || (group.size() == nMostConnections && grouptime > nMostConnectionsTime)) { + nMostConnections = group.size(); nMostConnectionsTime = grouptime; naMostConnections = node.nKeyedNetGroup; } @@ -1112,7 +1116,7 @@ void CConnman::AcceptConnection(const ListenSocket& hListenSocket) { if (IsBanned(addr) && !whitelisted) { - LogPrintf("connection from %s dropped (banned)\n", addr.ToString()); + LogPrint(BCLog::NET, "connection from %s dropped (banned)\n", addr.ToString()); CloseSocket(hSocket); return; } @@ -1544,22 +1548,20 @@ void ThreadMapPort() void MapPort(bool fUseUPnP) { - static boost::thread* upnp_thread = nullptr; + static std::unique_ptr<boost::thread> upnp_thread; if (fUseUPnP) { if (upnp_thread) { upnp_thread->interrupt(); upnp_thread->join(); - delete upnp_thread; } - upnp_thread = new boost::thread(boost::bind(&TraceThread<void (*)()>, "upnp", &ThreadMapPort)); + upnp_thread.reset(new boost::thread(boost::bind(&TraceThread<void (*)()>, "upnp", &ThreadMapPort))); } else if (upnp_thread) { upnp_thread->interrupt(); upnp_thread->join(); - delete upnp_thread; - upnp_thread = nullptr; + upnp_thread.reset(); } } @@ -1602,7 +1604,7 @@ void CConnman::ThreadDNSAddressSeed() LOCK(cs_vNodes); int nRelevant = 0; for (auto pnode : vNodes) { - nRelevant += pnode->fSuccessfullyConnected && ((pnode->nServices & nRelevantServices) == nRelevantServices); + nRelevant += pnode->fSuccessfullyConnected && !pnode->fFeeler && !pnode->fOneShot && !pnode->m_manual_connection && !pnode->fInbound; } if (nRelevant >= 2) { LogPrintf("P2P peers available. Skipped DNS seeding.\n"); @@ -1624,7 +1626,7 @@ void CConnman::ThreadDNSAddressSeed() } else { std::vector<CNetAddr> vIPs; std::vector<CAddress> vAdd; - ServiceFlags requiredServiceBits = nRelevantServices; + ServiceFlags requiredServiceBits = GetDesirableServiceFlags(NODE_NONE); std::string host = GetDNSHost(seed, &requiredServiceBits); CNetAddr resolveSource; if (!resolveSource.SetInternal(host)) { @@ -1694,6 +1696,37 @@ void CConnman::ProcessOneShot() } } +bool CConnman::GetTryNewOutboundPeer() +{ + return m_try_another_outbound_peer; +} + +void CConnman::SetTryNewOutboundPeer(bool flag) +{ + m_try_another_outbound_peer = flag; + LogPrint(BCLog::NET, "net: setting try another outbound peer=%s\n", flag ? "true" : "false"); +} + +// Return the number of peers we have over our outbound connection limit +// Exclude peers that are marked for disconnect, or are going to be +// disconnected soon (eg one-shots and feelers) +// Also exclude peers that haven't finished initial connection handshake yet +// (so that we don't decide we're over our desired connection limit, and then +// evict some peer that has finished the handshake) +int CConnman::GetExtraOutboundCount() +{ + int nOutbound = 0; + { + LOCK(cs_vNodes); + for (CNode* pnode : vNodes) { + if (!pnode->fInbound && !pnode->m_manual_connection && !pnode->fFeeler && !pnode->fDisconnect && !pnode->fOneShot && pnode->fSuccessfullyConnected) { + ++nOutbound; + } + } + } + return std::max(nOutbound - nMaxOutbound, 0); +} + void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) { // Connect to specific addresses @@ -1705,7 +1738,7 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) for (const std::string& strAddr : connect) { CAddress addr(CService(), NODE_NONE); - OpenNetworkConnection(addr, false, nullptr, strAddr.c_str()); + OpenNetworkConnection(addr, false, nullptr, strAddr.c_str(), false, false, true); for (int i = 0; i < 10 && i < nLoop; i++) { if (!interruptNet.sleep_for(std::chrono::milliseconds(500))) @@ -1753,17 +1786,11 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) // Only connect out to one peer per network group (/16 for IPv4). // Do this here so we don't have to critsect vNodes inside mapAddresses critsect. int nOutbound = 0; - int nOutboundRelevant = 0; std::set<std::vector<unsigned char> > setConnected; { LOCK(cs_vNodes); for (CNode* pnode : vNodes) { - if (!pnode->fInbound && !pnode->fAddnode) { - - // Count the peers that have all relevant services - if (pnode->fSuccessfullyConnected && !pnode->fFeeler && ((pnode->nServices & nRelevantServices) == nRelevantServices)) { - nOutboundRelevant++; - } + if (!pnode->fInbound && !pnode->m_manual_connection) { // Netgroups for inbound and addnode peers are not excluded because our goal here // is to not use multiple of our limited outbound slots on a single netgroup // but inbound and addnode peers do not use our outbound slots. Inbound peers @@ -1788,7 +1815,8 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) // * Only make a feeler connection once every few minutes. // bool fFeeler = false; - if (nOutbound >= nMaxOutbound) { + + if (nOutbound >= nMaxOutbound && !GetTryNewOutboundPeer()) { int64_t nTime = GetTimeMicros(); // The current time right now (in microseconds). if (nTime > nNextFeeler) { nNextFeeler = PoissonNextSend(nTime, FEELER_INTERVAL); @@ -1818,21 +1846,16 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) if (IsLimited(addr)) continue; - // only connect to full nodes - if ((addr.nServices & REQUIRED_SERVICES) != REQUIRED_SERVICES) - continue; - // only consider very recently tried nodes after 30 failed attempts if (nANow - addr.nLastTry < 600 && nTries < 30) continue; - // only consider nodes missing relevant services after 40 failed attempts and only if less than half the outbound are up. - ServiceFlags nRequiredServices = nRelevantServices; - if (nTries >= 40 && nOutbound < (nMaxOutbound >> 1)) { - nRequiredServices = REQUIRED_SERVICES; - } - - if ((addr.nServices & nRequiredServices) != nRequiredServices) { + // for non-feelers, require all the services we'll want, + // for feelers, only require they be a full node (only because most + // SPV clients don't have a good address DB available) + if (!fFeeler && !HasAllDesirableServiceFlags(addr.nServices)) { + continue; + } else if (fFeeler && !MayHaveUsefulAddressDB(addr.nServices)) { continue; } @@ -1841,13 +1864,6 @@ void CConnman::ThreadOpenConnections(const std::vector<std::string> connect) continue; addrConnect = addr; - - // regardless of the services assumed to be available, only require the minimum if half or more outbound have relevant services - if (nOutboundRelevant >= (nMaxOutbound >> 1)) { - addrConnect.nServices = REQUIRED_SERVICES; - } else { - addrConnect.nServices = nRequiredServices; - } break; } @@ -1946,7 +1962,7 @@ void CConnman::ThreadOpenAddedConnections() } // if successful, this moves the passed grant to the constructed node -bool CConnman::OpenNetworkConnection(const CAddress& addrConnect, bool fCountFailure, CSemaphoreGrant *grantOutbound, const char *pszDest, bool fOneShot, bool fFeeler, bool fAddnode) +bool CConnman::OpenNetworkConnection(const CAddress& addrConnect, bool fCountFailure, CSemaphoreGrant *grantOutbound, const char *pszDest, bool fOneShot, bool fFeeler, bool manual_connection) { // // Initiate outbound network connection @@ -1975,8 +1991,8 @@ bool CConnman::OpenNetworkConnection(const CAddress& addrConnect, bool fCountFai pnode->fOneShot = true; if (fFeeler) pnode->fFeeler = true; - if (fAddnode) - pnode->fAddnode = true; + if (manual_connection) + pnode->m_manual_connection = true; m_msgproc->InitializeNode(pnode); { @@ -2056,44 +2072,21 @@ bool CConnman::BindListenPort(const CService &addrBind, std::string& strError, b return false; } - SOCKET hListenSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP); + SOCKET hListenSocket = CreateSocket(addrBind); if (hListenSocket == INVALID_SOCKET) { strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %s)", NetworkErrorString(WSAGetLastError())); LogPrintf("%s\n", strError); return false; } - if (!IsSelectableSocket(hListenSocket)) - { - strError = "Error: Couldn't create a listenable socket for incoming connections"; - LogPrintf("%s\n", strError); - return false; - } - - #ifndef WIN32 -#ifdef SO_NOSIGPIPE - // Different way of disabling SIGPIPE on BSD - setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int)); -#endif // Allow binding if the port is still in TIME_WAIT state after // the program was closed and restarted. setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int)); - // Disable Nagle's algorithm - setsockopt(hListenSocket, IPPROTO_TCP, TCP_NODELAY, (void*)&nOne, sizeof(int)); #else setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (const char*)&nOne, sizeof(int)); - setsockopt(hListenSocket, IPPROTO_TCP, TCP_NODELAY, (const char*)&nOne, sizeof(int)); #endif - // Set to non-blocking, incoming connections will also inherit this - if (!SetSocketNonBlocking(hListenSocket, true)) { - CloseSocket(hListenSocket); - strError = strprintf("BindListenPort: Setting listening socket to non-blocking failed, error %s\n", NetworkErrorString(WSAGetLastError())); - LogPrintf("%s\n", strError); - return false; - } - // some systems don't have IPV6_V6ONLY but are always v6only; others do have the option // and enable it by default or not. Try to enable it, if possible. if (addrBind.IsIPv6()) { @@ -2220,9 +2213,8 @@ CConnman::CConnman(uint64_t nSeed0In, uint64_t nSeed1In) : nSeed0(nSeed0In), nSe nLastNodeId = 0; nSendBufferMaxSize = 0; nReceiveFloodSize = 0; - semOutbound = nullptr; - semAddnode = nullptr; flagInterruptMsgProc = false; + SetTryNewOutboundPeer(false); Options connOptions; Init(connOptions); @@ -2268,10 +2260,16 @@ bool CConnman::Start(CScheduler& scheduler, const Options& connOptions) { Init(connOptions); - nTotalBytesRecv = 0; - nTotalBytesSent = 0; - nMaxOutboundTotalBytesSentInCycle = 0; - nMaxOutboundCycleStartTime = 0; + { + LOCK(cs_totalBytesRecv); + nTotalBytesRecv = 0; + } + { + LOCK(cs_totalBytesSent); + nTotalBytesSent = 0; + nMaxOutboundTotalBytesSentInCycle = 0; + nMaxOutboundCycleStartTime = 0; + } if (fListen && !InitBinds(connOptions.vBinds, connOptions.vWhiteBinds)) { if (clientInterface) { @@ -2326,11 +2324,11 @@ bool CConnman::Start(CScheduler& scheduler, const Options& connOptions) if (semOutbound == nullptr) { // initialize semaphore - semOutbound = new CSemaphore(std::min((nMaxOutbound + nMaxFeeler), nMaxConnections)); + semOutbound = MakeUnique<CSemaphore>(std::min((nMaxOutbound + nMaxFeeler), nMaxConnections)); } if (semAddnode == nullptr) { // initialize semaphore - semAddnode = new CSemaphore(nMaxAddnode); + semAddnode = MakeUnique<CSemaphore>(nMaxAddnode); } // @@ -2453,10 +2451,8 @@ void CConnman::Stop() vNodes.clear(); vNodesDisconnected.clear(); vhListenSocket.clear(); - delete semOutbound; - semOutbound = nullptr; - delete semAddnode; - semAddnode = nullptr; + semOutbound.reset(); + semAddnode.reset(); } void CConnman::DeleteNode(CNode* pnode) @@ -2712,7 +2708,6 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn nSendVersion(0) { nServices = NODE_NONE; - nServicesExpected = NODE_NONE; hSocket = hSocketIn; nRecvVersion = INIT_PROTO_VERSION; nLastSend = 0; @@ -2725,7 +2720,7 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn strSubVer = ""; fWhitelisted = false; fOneShot = false; - fAddnode = false; + m_manual_connection = false; fClient = false; // set by version message fFeeler = false; fSuccessfullyConnected = false; @@ -2743,7 +2738,7 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn nNextInvSend = 0; fRelayTxes = false; fSentAddr = false; - pfilter = new CBloomFilter(); + pfilter = MakeUnique<CBloomFilter>(); timeLastMempoolReq = 0; nLastBlockTime = 0; nLastTXTime = 0; @@ -2773,9 +2768,6 @@ CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn CNode::~CNode() { CloseSocket(hSocket); - - if (pfilter) - delete pfilter; } void CNode::AskFor(const CInv& inv) |