1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2009-2012 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
12 #include "ui_interface.h"
19 #include <miniupnpc/miniwget.h>
20 #include <miniupnpc/miniupnpc.h>
21 #include <miniupnpc/upnpcommands.h>
22 #include <miniupnpc/upnperrors.h>
26 using namespace boost;
28 static const int MAX_OUTBOUND_CONNECTIONS = 16;
30 void ThreadMessageHandler2(void* parg);
31 void ThreadSocketHandler2(void* parg);
32 void ThreadOpenConnections2(void* parg);
33 void ThreadOpenAddedConnections2(void* parg);
35 void ThreadMapPort2(void* parg);
37 void ThreadDNSAddressSeed2(void* parg);
39 struct LocalServiceInfo {
45 // Global state variables
48 bool fDiscover = true;
49 bool fUseUPnP = false;
50 uint64_t nLocalServices = (fClient ? 0 : NODE_NETWORK);
51 static CCriticalSection cs_mapLocalHost;
52 static map<CNetAddr, LocalServiceInfo> mapLocalHost;
53 static bool vfReachable[NET_MAX] = {};
54 static bool vfLimited[NET_MAX] = {};
55 static CNode* pnodeLocalHost = NULL;
56 static CNode* pnodeSync = NULL;
57 CAddress addrSeenByPeer(CService("0.0.0.0", 0), nLocalServices);
58 uint64_t nLocalHostNonce = 0;
59 boost::array<int, THREAD_MAX> vnThreadsRunning;
60 static std::vector<SOCKET> vhListenSocket;
63 vector<CNode*> vNodes;
64 CCriticalSection cs_vNodes;
65 map<CInv, CDataStream> mapRelay;
66 deque<pair<int64_t, CInv> > vRelayExpiration;
67 CCriticalSection cs_mapRelay;
68 map<CInv, int64_t> mapAlreadyAskedFor;
70 static deque<string> vOneShots;
71 CCriticalSection cs_vOneShots;
73 set<CNetAddr> setservAddNodeAddresses;
74 CCriticalSection cs_setservAddNodeAddresses;
76 vector<std::string> vAddedNodes;
77 CCriticalSection cs_vAddedNodes;
79 static CSemaphore *semOutbound = NULL;
81 void AddOneShot(string strDest)
84 vOneShots.push_back(strDest);
87 unsigned short GetListenPort()
89 return (unsigned short)(GetArg("-port", GetDefaultPort()));
92 void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd)
94 // Filter out duplicate requests
95 if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd)
97 pindexLastGetBlocksBegin = pindexBegin;
98 hashLastGetBlocksEnd = hashEnd;
100 PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);
103 // find 'best' local address for a particular peer
104 bool GetLocal(CService& addr, const CNetAddr *paddrPeer)
110 int nBestReachability = -1;
112 LOCK(cs_mapLocalHost);
113 for (map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++)
115 int nScore = (*it).second.nScore;
116 int nReachability = (*it).first.GetReachabilityFrom(paddrPeer);
117 if (nReachability > nBestReachability || (nReachability == nBestReachability && nScore > nBestScore))
119 addr = CService((*it).first, (*it).second.nPort);
120 nBestReachability = nReachability;
125 return nBestScore >= 0;
128 // get best local address for a particular peer as a CAddress
129 CAddress GetLocalAddress(const CNetAddr *paddrPeer)
131 CAddress ret(CService("0.0.0.0",0),0);
133 if (GetLocal(addr, paddrPeer))
135 ret = CAddress(addr);
136 ret.nServices = nLocalServices;
137 ret.nTime = GetAdjustedTime();
142 bool RecvLine(SOCKET hSocket, string& strLine)
148 int nBytes = recv(hSocket, &c, 1, 0);
156 if (strLine.size() >= 9000)
159 else if (nBytes <= 0)
165 int nErr = WSAGetLastError();
166 if (nErr == WSAEMSGSIZE)
168 if (nErr == WSAEWOULDBLOCK || nErr == WSAEINTR || nErr == WSAEINPROGRESS)
174 if (!strLine.empty())
179 printf("socket closed\n");
185 int nErr = WSAGetLastError();
186 printf("recv failed: %d\n", nErr);
193 // used when scores of local addresses may have changed
194 // pushes better local address to peers
195 void static AdvertizeLocal()
198 BOOST_FOREACH(CNode* pnode, vNodes)
200 if (pnode->fSuccessfullyConnected)
202 CAddress addrLocal = GetLocalAddress(&pnode->addr);
203 if (addrLocal.IsRoutable() && (CService)addrLocal != (CService)pnode->addrLocal)
205 pnode->PushAddress(addrLocal);
206 pnode->addrLocal = addrLocal;
212 void SetReachable(enum Network net, bool fFlag)
214 LOCK(cs_mapLocalHost);
215 vfReachable[net] = fFlag;
216 if (net == NET_IPV6 && fFlag)
217 vfReachable[NET_IPV4] = true;
220 // learn a new local address
221 bool AddLocal(const CService& addr, int nScore)
223 if (!addr.IsRoutable())
226 if (!fDiscover && nScore < LOCAL_MANUAL)
232 printf("AddLocal(%s,%i)\n", addr.ToString().c_str(), nScore);
235 LOCK(cs_mapLocalHost);
236 bool fAlready = mapLocalHost.count(addr) > 0;
237 LocalServiceInfo &info = mapLocalHost[addr];
238 if (!fAlready || nScore >= info.nScore) {
239 info.nScore = nScore + (fAlready ? 1 : 0);
240 info.nPort = addr.GetPort();
242 SetReachable(addr.GetNetwork());
250 bool AddLocal(const CNetAddr &addr, int nScore)
252 return AddLocal(CService(addr, GetListenPort()), nScore);
255 /** Make a particular network entirely off-limits (no automatic connects to it) */
256 void SetLimited(enum Network net, bool fLimited)
258 if (net == NET_UNROUTABLE)
260 LOCK(cs_mapLocalHost);
261 vfLimited[net] = fLimited;
264 bool IsLimited(enum Network net)
266 LOCK(cs_mapLocalHost);
267 return vfLimited[net];
270 bool IsLimited(const CNetAddr &addr)
272 return IsLimited(addr.GetNetwork());
275 /** vote for a local address */
276 bool SeenLocal(const CService& addr)
279 LOCK(cs_mapLocalHost);
280 if (mapLocalHost.count(addr) == 0)
282 mapLocalHost[addr].nScore++;
290 /** check whether a given address is potentially local */
291 bool IsLocal(const CService& addr)
293 LOCK(cs_mapLocalHost);
294 return mapLocalHost.count(addr) > 0;
297 /** check whether a given address is in a network we can probably connect to */
298 bool IsReachable(const CNetAddr& addr)
300 LOCK(cs_mapLocalHost);
301 enum Network net = addr.GetNetwork();
302 return vfReachable[net] && !vfLimited[net];
305 extern int GetExternalIPbySTUN(uint64_t rnd, struct sockaddr_in *mapped, const char **srv);
307 // We now get our external IP from the IRC server first and only use this as a backup
308 bool GetMyExternalIP(CNetAddr& ipRet)
310 struct sockaddr_in mapped;
311 uint64_t rnd = GetRand(~0LL);
313 int rc = GetExternalIPbySTUN(rnd, &mapped, &srv);
315 ipRet = CNetAddr(mapped.sin_addr);
316 printf("GetExternalIPbySTUN(%" PRIu64 ") returned %s in attempt %d; Server=%s\n", rnd, ipRet.ToStringIP().c_str(), rc, srv);
322 void ThreadGetMyExternalIP(void* parg)
324 // Make this thread recognisable as the external IP detection thread
325 RenameThread("novacoin-ext-ip");
327 CNetAddr addrLocalHost;
328 if (GetMyExternalIP(addrLocalHost))
330 printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
331 AddLocal(addrLocalHost, LOCAL_HTTP);
339 void AddressCurrentlyConnected(const CService& addr)
341 addrman.Connected(addr);
347 uint64_t CNode::nTotalBytesRecv = 0;
348 uint64_t CNode::nTotalBytesSent = 0;
349 CCriticalSection CNode::cs_totalBytesRecv;
350 CCriticalSection CNode::cs_totalBytesSent;
352 CNode* FindNode(const CNetAddr& ip)
355 BOOST_FOREACH(CNode* pnode, vNodes)
356 if ((CNetAddr)pnode->addr == ip)
361 CNode* FindNode(std::string addrName)
364 BOOST_FOREACH(CNode* pnode, vNodes)
365 if (pnode->addrName == addrName)
370 CNode* FindNode(const CService& addr)
373 BOOST_FOREACH(CNode* pnode, vNodes)
374 if ((CService)pnode->addr == addr)
379 CNode* ConnectNode(CAddress addrConnect, const char *pszDest, int64_t nTimeout)
381 if (pszDest == NULL) {
382 if (IsLocal(addrConnect))
385 // Look for an existing connection
386 CNode* pnode = FindNode((CService)addrConnect);
390 pnode->AddRef(nTimeout);
399 printf("trying connection %s lastseen=%.1fhrs\n",
400 pszDest ? pszDest : addrConnect.ToString().c_str(),
401 pszDest ? 0 : (double)(GetAdjustedTime() - addrConnect.nTime)/3600.0);
405 if (pszDest ? ConnectSocketByName(addrConnect, hSocket, pszDest, GetDefaultPort()) : ConnectSocket(addrConnect, hSocket))
407 addrman.Attempt(addrConnect);
410 printf("connected %s\n", pszDest ? pszDest : addrConnect.ToString().c_str());
412 // Set to non-blocking
415 if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
416 printf("ConnectSocket() : ioctlsocket non-blocking setting failed, error %d\n", WSAGetLastError());
418 if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
419 printf("ConnectSocket() : fcntl non-blocking setting failed, error %d\n", errno);
423 CNode* pnode = new CNode(hSocket, addrConnect, pszDest ? pszDest : "", false);
425 pnode->AddRef(nTimeout);
431 vNodes.push_back(pnode);
434 pnode->nTimeConnected = GetTime();
443 void CNode::CloseSocketDisconnect()
446 if (hSocket != INVALID_SOCKET)
448 printf("disconnecting node %s\n", addrName.c_str());
449 closesocket(hSocket);
450 hSocket = INVALID_SOCKET;
454 // in case this fails, we'll empty the recv buffer when the CNode is deleted
455 TRY_LOCK(cs_vRecv, lockRecv);
459 // if this was the sync node, we'll need a new one
460 if (this == pnodeSync)
464 void CNode::Cleanup()
469 void CNode::PushVersion()
471 /// when NTP implemented, change to just nTime = GetAdjustedTime()
472 int64_t nTime = (fInbound ? GetAdjustedTime() : GetTime());
473 CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService("0.0.0.0",0)));
474 CAddress addrMe = GetLocalAddress(&addr);
475 RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
476 printf("send version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", PROTOCOL_VERSION, nBestHeight, addrMe.ToString().c_str(), addrYou.ToString().c_str(), addr.ToString().c_str());
477 PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe,
478 nLocalHostNonce, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()), nBestHeight);
485 std::map<CNetAddr, int64_t> CNode::setBanned;
486 CCriticalSection CNode::cs_setBanned;
488 void CNode::ClearBanned()
493 bool CNode::IsBanned(CNetAddr ip)
495 bool fResult = false;
498 std::map<CNetAddr, int64_t>::iterator i = setBanned.find(ip);
499 if (i != setBanned.end())
501 int64_t t = (*i).second;
509 bool CNode::Misbehaving(int howmuch)
513 printf("Warning: Local node %s misbehaving (delta: %d)!\n", addrName.c_str(), howmuch);
517 nMisbehavior += howmuch;
518 if (nMisbehavior >= GetArg("-banscore", 100))
520 int64_t banTime = GetTime()+GetArg("-bantime", 60*60*24); // Default 24-hour ban
521 printf("Misbehaving: %s (%d -> %d) DISCONNECTING\n", addr.ToString().c_str(), nMisbehavior-howmuch, nMisbehavior);
524 if (setBanned[addr] < banTime)
525 setBanned[addr] = banTime;
527 CloseSocketDisconnect();
530 printf("Misbehaving: %s (%d -> %d)\n", addr.ToString().c_str(), nMisbehavior-howmuch, nMisbehavior);
535 #define X(name) stats.name = name
536 void CNode::copyStats(CNodeStats &stats)
551 stats.fSyncNode = (this == pnodeSync);
564 void ThreadSocketHandler(void* parg)
566 // Make this thread recognisable as the networking thread
567 RenameThread("novacoin-net");
571 vnThreadsRunning[THREAD_SOCKETHANDLER]++;
572 ThreadSocketHandler2(parg);
573 vnThreadsRunning[THREAD_SOCKETHANDLER]--;
575 catch (std::exception& e) {
576 vnThreadsRunning[THREAD_SOCKETHANDLER]--;
577 PrintException(&e, "ThreadSocketHandler()");
579 vnThreadsRunning[THREAD_SOCKETHANDLER]--;
580 throw; // support pthread_cancel()
582 printf("ThreadSocketHandler exited\n");
585 void ThreadSocketHandler2(void* parg)
587 printf("ThreadSocketHandler started\n");
588 list<CNode*> vNodesDisconnected;
589 unsigned int nPrevNodeCount = 0;
598 // Disconnect unused nodes
599 vector<CNode*> vNodesCopy = vNodes;
600 BOOST_FOREACH(CNode* pnode, vNodesCopy)
602 if (pnode->fDisconnect ||
603 (pnode->GetRefCount() <= 0 && pnode->vRecv.empty() && pnode->vSend.empty()))
605 // remove from vNodes
606 vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
608 // release outbound grant (if any)
609 pnode->grantOutbound.Release();
611 // close socket and cleanup
612 pnode->CloseSocketDisconnect();
615 // hold in disconnected pool until all refs are released
616 pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 15 * 60);
617 if (pnode->fNetworkNode || pnode->fInbound)
619 vNodesDisconnected.push_back(pnode);
623 // Delete disconnected nodes
624 list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
625 BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
627 // wait until threads are done using it
628 if (pnode->GetRefCount() <= 0)
630 bool fDelete = false;
632 TRY_LOCK(pnode->cs_vSend, lockSend);
635 TRY_LOCK(pnode->cs_vRecv, lockRecv);
638 TRY_LOCK(pnode->cs_mapRequests, lockReq);
641 TRY_LOCK(pnode->cs_inventory, lockInv);
650 vNodesDisconnected.remove(pnode);
656 if (vNodes.size() != nPrevNodeCount)
658 nPrevNodeCount = vNodes.size();
659 uiInterface.NotifyNumConnectionsChanged(vNodes.size());
664 // Find which sockets have data to receive
666 struct timeval timeout;
668 timeout.tv_usec = 50000; // frequency to poll pnode->vSend
675 FD_ZERO(&fdsetError);
676 SOCKET hSocketMax = 0;
677 bool have_fds = false;
679 BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket) {
680 FD_SET(hListenSocket, &fdsetRecv);
681 hSocketMax = max(hSocketMax, hListenSocket);
686 BOOST_FOREACH(CNode* pnode, vNodes)
688 if (pnode->hSocket == INVALID_SOCKET)
690 FD_SET(pnode->hSocket, &fdsetRecv);
691 FD_SET(pnode->hSocket, &fdsetError);
692 hSocketMax = max(hSocketMax, pnode->hSocket);
695 TRY_LOCK(pnode->cs_vSend, lockSend);
696 if (lockSend && !pnode->vSend.empty())
697 FD_SET(pnode->hSocket, &fdsetSend);
702 vnThreadsRunning[THREAD_SOCKETHANDLER]--;
703 int nSelect = select(have_fds ? hSocketMax + 1 : 0,
704 &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
705 vnThreadsRunning[THREAD_SOCKETHANDLER]++;
708 if (nSelect == SOCKET_ERROR)
712 int nErr = WSAGetLastError();
713 printf("socket select error %d\n", nErr);
714 for (unsigned int i = 0; i <= hSocketMax; i++)
715 FD_SET(i, &fdsetRecv);
718 FD_ZERO(&fdsetError);
719 Sleep(timeout.tv_usec/1000);
724 // Accept new connections
726 BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
727 if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
730 struct sockaddr_storage sockaddr;
732 struct sockaddr sockaddr;
734 socklen_t len = sizeof(sockaddr);
735 SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
739 if (hSocket != INVALID_SOCKET)
740 if (!addr.SetSockAddr((const struct sockaddr*)&sockaddr))
741 printf("Warning: Unknown socket family\n");
745 BOOST_FOREACH(CNode* pnode, vNodes)
750 if (hSocket == INVALID_SOCKET)
752 int nErr = WSAGetLastError();
753 if (nErr != WSAEWOULDBLOCK)
754 printf("socket error accept failed: %d\n", nErr);
756 else if (nInbound >= GetArg("-maxconnections", 125) - MAX_OUTBOUND_CONNECTIONS)
759 LOCK(cs_setservAddNodeAddresses);
760 if (!setservAddNodeAddresses.count(addr))
761 closesocket(hSocket);
764 else if (CNode::IsBanned(addr))
766 printf("connection from %s dropped (banned)\n", addr.ToString().c_str());
767 closesocket(hSocket);
771 printf("accepted connection %s\n", addr.ToString().c_str());
772 CNode* pnode = new CNode(hSocket, addr, "", true);
776 vNodes.push_back(pnode);
783 // Service each socket
785 vector<CNode*> vNodesCopy;
789 BOOST_FOREACH(CNode* pnode, vNodesCopy)
792 BOOST_FOREACH(CNode* pnode, vNodesCopy)
800 if (pnode->hSocket == INVALID_SOCKET)
802 if (FD_ISSET(pnode->hSocket, &fdsetRecv) || FD_ISSET(pnode->hSocket, &fdsetError))
804 TRY_LOCK(pnode->cs_vRecv, lockRecv);
807 CDataStream& vRecv = pnode->vRecv;
808 uint64_t nPos = vRecv.size();
810 if (nPos > ReceiveBufferSize()) {
811 if (!pnode->fDisconnect)
812 printf("socket recv flood control disconnect (%" PRIszu " bytes)\n", vRecv.size());
813 pnode->CloseSocketDisconnect();
816 // typical socket buffer is 8K-64K
817 char pchBuf[0x10000];
818 int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT);
821 vRecv.resize(nPos + nBytes);
822 memcpy(&vRecv[nPos], pchBuf, nBytes);
823 pnode->nLastRecv = GetTime();
824 pnode->nRecvBytes += nBytes;
825 pnode->RecordBytesRecv(nBytes);
827 else if (nBytes == 0)
829 // socket closed gracefully
830 if (!pnode->fDisconnect)
831 printf("socket closed\n");
832 pnode->CloseSocketDisconnect();
837 int nErr = WSAGetLastError();
838 if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
840 if (!pnode->fDisconnect)
841 printf("socket recv error %d\n", nErr);
842 pnode->CloseSocketDisconnect();
852 if (pnode->hSocket == INVALID_SOCKET)
854 if (FD_ISSET(pnode->hSocket, &fdsetSend))
856 TRY_LOCK(pnode->cs_vSend, lockSend);
859 CDataStream& vSend = pnode->vSend;
862 int nBytes = send(pnode->hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL | MSG_DONTWAIT);
865 vSend.erase(vSend.begin(), vSend.begin() + nBytes);
866 pnode->nLastSend = GetTime();
867 pnode->nSendBytes += nBytes;
868 pnode->RecordBytesSent(nBytes);
873 int nErr = WSAGetLastError();
874 if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
876 printf("socket send error %d\n", nErr);
877 pnode->CloseSocketDisconnect();
885 // Inactivity checking
887 if (pnode->vSend.empty())
888 pnode->nLastSendEmpty = GetTime();
889 if (GetTime() - pnode->nTimeConnected > 60)
891 if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
893 printf("socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
894 pnode->fDisconnect = true;
896 else if (GetTime() - pnode->nLastSend > 90*60 && GetTime() - pnode->nLastSendEmpty > 90*60)
898 printf("socket not sending\n");
899 pnode->fDisconnect = true;
901 else if (GetTime() - pnode->nLastRecv > 90*60)
903 printf("socket inactivity timeout\n");
904 pnode->fDisconnect = true;
910 BOOST_FOREACH(CNode* pnode, vNodesCopy)
927 void ThreadMapPort(void* parg)
929 // Make this thread recognisable as the UPnP thread
930 RenameThread("novacoin-UPnP");
934 vnThreadsRunning[THREAD_UPNP]++;
935 ThreadMapPort2(parg);
936 vnThreadsRunning[THREAD_UPNP]--;
938 catch (std::exception& e) {
939 vnThreadsRunning[THREAD_UPNP]--;
940 PrintException(&e, "ThreadMapPort()");
942 vnThreadsRunning[THREAD_UPNP]--;
943 PrintException(NULL, "ThreadMapPort()");
945 printf("ThreadMapPort exited\n");
948 void ThreadMapPort2(void* parg)
950 printf("ThreadMapPort started\n");
952 std::string port = strprintf("%u", GetListenPort());
953 const char * multicastif = 0;
954 const char * minissdpdpath = 0;
955 struct UPNPDev * devlist = 0;
958 #ifndef UPNPDISCOVER_SUCCESS
960 devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
964 devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
967 struct UPNPUrls urls;
968 struct IGDdatas data;
971 r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
975 char externalIPAddress[40];
976 r = UPNP_GetExternalIPAddress(urls.controlURL, data.first.servicetype, externalIPAddress);
977 if(r != UPNPCOMMAND_SUCCESS)
978 printf("UPnP: GetExternalIPAddress() returned %d\n", r);
981 if(externalIPAddress[0])
983 printf("UPnP: ExternalIPAddress = %s\n", externalIPAddress);
984 AddLocal(CNetAddr(externalIPAddress), LOCAL_UPNP);
987 printf("UPnP: GetExternalIPAddress failed.\n");
991 string strDesc = "NovaCoin " + FormatFullVersion();
992 #ifndef UPNPDISCOVER_SUCCESS
994 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
995 port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0);
998 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
999 port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0, "0");
1002 if(r!=UPNPCOMMAND_SUCCESS)
1003 printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
1004 port.c_str(), port.c_str(), lanaddr, r, strupnperror(r));
1006 printf("UPnP Port Mapping successful.\n");
1010 if (fShutdown || !fUseUPnP)
1012 r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port.c_str(), "TCP", 0);
1013 printf("UPNP_DeletePortMapping() returned : %d\n", r);
1014 freeUPNPDevlist(devlist); devlist = 0;
1015 FreeUPNPUrls(&urls);
1018 if (i % 600 == 0) // Refresh every 20 minutes
1020 #ifndef UPNPDISCOVER_SUCCESS
1022 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
1023 port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0);
1026 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
1027 port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0, "0");
1030 if(r!=UPNPCOMMAND_SUCCESS)
1031 printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
1032 port.c_str(), port.c_str(), lanaddr, r, strupnperror(r));
1034 printf("UPnP Port Mapping successful.\n");;
1040 printf("No valid UPnP IGDs found\n");
1041 freeUPNPDevlist(devlist); devlist = 0;
1043 FreeUPNPUrls(&urls);
1046 if (fShutdown || !fUseUPnP)
1055 if (fUseUPnP && vnThreadsRunning[THREAD_UPNP] < 1)
1057 if (!NewThread(ThreadMapPort, NULL))
1058 printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
1064 // Intentionally left blank.
1077 // Each pair gives a source name and a seed name.
1078 // The first name is used as information source for addrman.
1079 // The second name should resolve to a list of seed addresses.
1080 static const char *strDNSSeed[][2] = {
1081 {"novacoin.karelia.pro", "dnsseed.novacoin.karelia.pro"},
1082 {"novacoin.su", "dnsseed.novacoin.su"},
1083 {"novacoin.ru", "dnsseed.novacoin.ru"},
1084 {"novacoin.ru", "testseed.novacoin.ru"},
1085 {"novaco.in", "dnsseed.novaco.in"},
1088 void ThreadDNSAddressSeed(void* parg)
1090 // Make this thread recognisable as the DNS seeding thread
1091 RenameThread("novacoin-dnsseed");
1095 vnThreadsRunning[THREAD_DNSSEED]++;
1096 ThreadDNSAddressSeed2(parg);
1097 vnThreadsRunning[THREAD_DNSSEED]--;
1099 catch (std::exception& e) {
1100 vnThreadsRunning[THREAD_DNSSEED]--;
1101 PrintException(&e, "ThreadDNSAddressSeed()");
1103 vnThreadsRunning[THREAD_DNSSEED]--;
1104 throw; // support pthread_cancel()
1106 printf("ThreadDNSAddressSeed exited\n");
1109 void ThreadDNSAddressSeed2(void* parg)
1111 printf("ThreadDNSAddressSeed started\n");
1116 printf("Loading addresses from DNS seeds (could take a while)\n");
1118 for (unsigned int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
1119 if (HaveNameProxy()) {
1120 AddOneShot(strDNSSeed[seed_idx][1]);
1122 vector<CNetAddr> vaddr;
1123 vector<CAddress> vAdd;
1124 if (LookupHost(strDNSSeed[seed_idx][1], vaddr))
1126 BOOST_FOREACH(CNetAddr& ip, vaddr)
1128 int nOneDay = 24*3600;
1129 CAddress addr = CAddress(CService(ip, GetDefaultPort()));
1130 addr.nTime = GetTime() - 3*nOneDay - GetRand(4*nOneDay); // use a random age between 3 and 7 days old
1131 vAdd.push_back(addr);
1135 addrman.Add(vAdd, CNetAddr(strDNSSeed[seed_idx][0], true));
1140 printf("%d addresses found from DNS seeds\n", found);
1156 0xa52bf0da, 0x30aa43d8, 0x614488d5, 0x517b6fd5, 0xd4bf62d4, 0xb7d638d4, 0xbc12bcd1, 0xa2501bc6,
1157 0xfde617c6, 0x3337b1c6, 0x1dcd71c3, 0x2c1544c1, 0xe05f6ac1, 0x852f63c0, 0x3e2363c0, 0x15f563c0,
1158 0x430d63c0, 0x50d6a9c0, 0xf0a679c0, 0xefdeedbf, 0x7aaee8bc, 0x3a3dbbbc, 0xef218abc, 0x0bef78bc,
1159 0x8baa3eb2, 0x2bf913b2, 0x24ed9fb2, 0xb42289b2, 0x718a09b0, 0xe9433eb0, 0x559425b0, 0xc97e1fb0,
1160 0x18e1d4b0, 0x8f6cc1b0, 0xac3838ae, 0x86c0ffad, 0x6b0272a7, 0xa463f8a2, 0x6f17f3a2, 0xb3d6f3a2,
1161 0x9cd8f997, 0xd513fb94, 0x39e64880, 0x3859dd6f, 0x0b08fe6d, 0xe601fe6d, 0xeb44a26d, 0xfe53186c,
1162 0x203c2e68, 0x1c542868, 0x0caa8368, 0xb8748368, 0xccca4762, 0xc637555f, 0x638a545f, 0x59b2205f,
1163 0x52568c5f, 0xba568c5f, 0x8a568c5f, 0x31b0f45e, 0x54a0f45e, 0x37d6f15e, 0xc520175e, 0x7620175e,
1164 0xc310175e, 0x8e33b45e, 0x7abb5f5d, 0xd3014c5d, 0xa1e1485d, 0x9947645d, 0xfab8ff5c, 0xa979e65b,
1165 0xa879e65b, 0x9f79e65b, 0x9fa3d25b, 0x112a925b, 0x7b92905b, 0x60647a5b, 0x1e389d5a, 0x851afa59,
1166 0x0185ef59, 0x26549b59, 0x1c9efe57, 0xc54c1256, 0x1ad51955, 0x19d21955, 0x73c41955, 0x3f74ee55,
1167 0x633eea55, 0x6883d655, 0xfb72c655, 0x5360a653, 0x17c1ea52, 0xc661c852, 0x1ecdc852, 0x006a9752,
1168 0xf72d9252, 0x82650551, 0x36f1c851, 0x33f1c851, 0xd5c1864f, 0xb6bf1b4e, 0x96da184e, 0x40d0234d,
1169 0x9a96ab4c, 0x8fc2a84c, 0xb5dbd048, 0xf4644447, 0x2d51af47, 0xa9625445, 0x83f05243, 0x89672941,
1170 0x3a8bad3e, 0xf0a05436, 0x6ab7c936, 0x49971d32, 0xadd4482e, 0xcffd212e, 0x6730bc2e, 0x839aa12e,
1171 0x68d9692e, 0xc7183b25, 0x6c47bb25, 0x2490bb25, 0xad651c1f, 0x048a861f, 0x6937811f, 0x064b2d05,
1175 void DumpAddresses()
1177 int64_t nStart = GetTimeMillis();
1182 printf("Flushed %d addresses to peers.dat %" PRId64 "ms\n",
1183 addrman.size(), GetTimeMillis() - nStart);
1186 void ThreadDumpAddress2(void* parg)
1188 vnThreadsRunning[THREAD_DUMPADDRESS]++;
1192 vnThreadsRunning[THREAD_DUMPADDRESS]--;
1194 vnThreadsRunning[THREAD_DUMPADDRESS]++;
1196 vnThreadsRunning[THREAD_DUMPADDRESS]--;
1199 void ThreadDumpAddress(void* parg)
1201 // Make this thread recognisable as the address dumping thread
1202 RenameThread("novacoin-adrdump");
1206 ThreadDumpAddress2(parg);
1208 catch (std::exception& e) {
1209 PrintException(&e, "ThreadDumpAddress()");
1211 printf("ThreadDumpAddress exited\n");
1214 void ThreadOpenConnections(void* parg)
1216 // Make this thread recognisable as the connection opening thread
1217 RenameThread("novacoin-opencon");
1221 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1222 ThreadOpenConnections2(parg);
1223 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1225 catch (std::exception& e) {
1226 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1227 PrintException(&e, "ThreadOpenConnections()");
1229 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1230 PrintException(NULL, "ThreadOpenConnections()");
1232 printf("ThreadOpenConnections exited\n");
1235 void static ProcessOneShot()
1240 if (vOneShots.empty())
1242 strDest = vOneShots.front();
1243 vOneShots.pop_front();
1246 CSemaphoreGrant grant(*semOutbound, true);
1248 if (!OpenNetworkConnection(addr, &grant, strDest.c_str(), true))
1249 AddOneShot(strDest);
1253 // ppcoin: stake minter thread
1254 void static ThreadStakeMinter(void* parg)
1256 printf("ThreadStakeMinter started\n");
1257 CWallet* pwallet = (CWallet*)parg;
1260 vnThreadsRunning[THREAD_MINTER]++;
1261 StakeMiner(pwallet);
1262 vnThreadsRunning[THREAD_MINTER]--;
1264 catch (std::exception& e) {
1265 vnThreadsRunning[THREAD_MINTER]--;
1266 PrintException(&e, "ThreadStakeMinter()");
1268 vnThreadsRunning[THREAD_MINTER]--;
1269 PrintException(NULL, "ThreadStakeMinter()");
1271 printf("ThreadStakeMinter exiting, %d threads remaining\n", vnThreadsRunning[THREAD_MINTER]);
1274 void ThreadOpenConnections2(void* parg)
1276 printf("ThreadOpenConnections started\n");
1278 // Connect to specific addresses
1279 if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0)
1281 for (int64_t nLoop = 0;; nLoop++)
1284 BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
1287 OpenNetworkConnection(addr, NULL, strAddr.c_str());
1288 for (int i = 0; i < 10 && i < nLoop; i++)
1299 // Initiate network connections
1300 int64_t nStart = GetTime();
1305 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1307 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1312 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1313 CSemaphoreGrant grant(*semOutbound);
1314 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1318 // Add seed nodes if IRC isn't working
1319 if (addrman.size()==0 && (GetTime() - nStart > 60) && !fTestNet)
1321 std::vector<CAddress> vAdd;
1322 for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
1324 // It'll only connect to one or two seed nodes because once it connects,
1325 // it'll get a pile of addresses with newer timestamps.
1326 // Seed nodes are given a random 'last seen time' of between one and two
1328 const int64_t nOneWeek = 7*24*60*60;
1330 memcpy(&ip, &pnSeed[i], sizeof(ip));
1331 CAddress addr(CService(ip, GetDefaultPort()));
1332 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
1333 vAdd.push_back(addr);
1335 addrman.Add(vAdd, CNetAddr("127.0.0.1"));
1339 // Choose an address to connect to based on most recently seen
1341 CAddress addrConnect;
1343 // Only connect out to one peer per network group (/16 for IPv4).
1344 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
1346 set<vector<unsigned char> > setConnected;
1349 BOOST_FOREACH(CNode* pnode, vNodes) {
1350 if (!pnode->fInbound) {
1351 setConnected.insert(pnode->addr.GetGroup());
1357 int64_t nANow = GetAdjustedTime();
1362 // use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections)
1363 CAddress addr = addrman.Select(10 + min(nOutbound,8)*10);
1365 // if we selected an invalid address, restart
1366 if (!addr.IsValid() || setConnected.count(addr.GetGroup()) || IsLocal(addr))
1369 // If we didn't find an appropriate destination after trying 100 addresses fetched from addrman,
1370 // stop this loop, and let the outer loop run again (which sleeps, adds seed nodes, recalculates
1371 // already-connected network ranges, ...) before trying new addrman addresses.
1376 if (IsLimited(addr))
1379 // only consider very recently tried nodes after 30 failed attempts
1380 if (nANow - addr.nLastTry < 600 && nTries < 30)
1383 // do not allow non-default ports, unless after 50 invalid addresses selected already
1384 if (addr.GetPort() != GetDefaultPort() && nTries < 50)
1391 if (addrConnect.IsValid())
1392 OpenNetworkConnection(addrConnect, &grant);
1396 void ThreadOpenAddedConnections(void* parg)
1398 // Make this thread recognisable as the connection opening thread
1399 RenameThread("novacoin-opencon");
1403 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1404 ThreadOpenAddedConnections2(parg);
1405 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1407 catch (std::exception& e) {
1408 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1409 PrintException(&e, "ThreadOpenAddedConnections()");
1411 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1412 PrintException(NULL, "ThreadOpenAddedConnections()");
1414 printf("ThreadOpenAddedConnections exited\n");
1417 void ThreadOpenAddedConnections2(void* parg)
1419 printf("ThreadOpenAddedConnections started\n");
1422 LOCK(cs_vAddedNodes);
1423 vAddedNodes = mapMultiArgs["-addnode"];
1426 if (HaveNameProxy()) {
1428 list<string> lAddresses(0);
1430 LOCK(cs_vAddedNodes);
1431 BOOST_FOREACH(string& strAddNode, vAddedNodes)
1432 lAddresses.push_back(strAddNode);
1434 BOOST_FOREACH(string& strAddNode, lAddresses) {
1436 CSemaphoreGrant grant(*semOutbound);
1437 OpenNetworkConnection(addr, &grant, strAddNode.c_str());
1440 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1441 Sleep(120000); // Retry every 2 minutes
1442 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1447 for (uint32_t i = 0; true; i++)
1449 list<string> lAddresses(0);
1451 LOCK(cs_vAddedNodes);
1452 BOOST_FOREACH(string& strAddNode, vAddedNodes)
1453 lAddresses.push_back(strAddNode);
1456 list<vector<CService> > lservAddressesToAdd(0);
1457 BOOST_FOREACH(string& strAddNode, lAddresses)
1459 vector<CService> vservNode(0);
1460 if (Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
1462 lservAddressesToAdd.push_back(vservNode);
1464 LOCK(cs_setservAddNodeAddresses);
1465 BOOST_FOREACH(CService& serv, vservNode)
1466 setservAddNodeAddresses.insert(serv);
1470 // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
1471 // (keeping in mind that addnode entries can have many IPs if fNameLookup)
1474 BOOST_FOREACH(CNode* pnode, vNodes)
1475 for (list<vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
1477 BOOST_FOREACH(CService& addrNode, *(it))
1478 if (pnode->addr == addrNode)
1480 it = lservAddressesToAdd.erase(it);
1481 if(it != lservAddressesToAdd.begin())
1485 if (it == lservAddressesToAdd.end())
1489 BOOST_FOREACH(vector<CService>& vserv, lservAddressesToAdd)
1491 if (vserv.size() == 0)
1493 CSemaphoreGrant grant(*semOutbound);
1494 OpenNetworkConnection(CAddress(vserv[i % vserv.size()]), &grant);
1501 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1502 Sleep(120000); // Retry every 2 minutes
1503 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1509 // if successful, this moves the passed grant to the constructed node
1510 bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound, const char *strDest, bool fOneShot)
1513 // Initiate outbound network connection
1518 if (IsLocal(addrConnect) ||
1519 FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect) ||
1520 FindNode(addrConnect.ToStringIPPort().c_str()))
1522 if (strDest && FindNode(strDest))
1525 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1526 CNode* pnode = ConnectNode(addrConnect, strDest);
1527 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1533 grantOutbound->MoveTo(pnode->grantOutbound);
1534 pnode->fNetworkNode = true;
1536 pnode->fOneShot = true;
1541 // for now, use a very simple selection metric: the node from which we received
1543 double static NodeSyncScore(const CNode *pnode) {
1544 return -pnode->nLastRecv;
1547 void static StartSync(const vector<CNode*> &vNodes) {
1548 CNode *pnodeNewSync = NULL;
1549 double dBestScore = 0;
1551 // Iterate over all nodes
1552 BOOST_FOREACH(CNode* pnode, vNodes) {
1553 // check preconditions for allowing a sync
1554 if (!pnode->fClient && !pnode->fOneShot &&
1555 !pnode->fDisconnect && pnode->fSuccessfullyConnected &&
1556 (pnode->nStartingHeight > (nBestHeight - 144)) &&
1557 (pnode->nVersion < NOBLKS_VERSION_START || pnode->nVersion >= NOBLKS_VERSION_END)) {
1558 // if ok, compare node's score with the best so far
1559 double dScore = NodeSyncScore(pnode);
1560 if (pnodeNewSync == NULL || dScore > dBestScore) {
1561 pnodeNewSync = pnode;
1562 dBestScore = dScore;
1566 // if a new sync candidate was found, start sync!
1568 pnodeNewSync->fStartSync = true;
1569 pnodeSync = pnodeNewSync;
1573 void ThreadMessageHandler(void* parg)
1575 // Make this thread recognisable as the message handling thread
1576 RenameThread("novacoin-msghand");
1580 vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
1581 ThreadMessageHandler2(parg);
1582 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1584 catch (std::exception& e) {
1585 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1586 PrintException(&e, "ThreadMessageHandler()");
1588 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1589 PrintException(NULL, "ThreadMessageHandler()");
1591 printf("ThreadMessageHandler exited\n");
1594 void ThreadMessageHandler2(void* parg)
1596 printf("ThreadMessageHandler started\n");
1597 SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
1600 bool fHaveSyncNode = false;
1601 vector<CNode*> vNodesCopy;
1604 vNodesCopy = vNodes;
1605 BOOST_FOREACH(CNode* pnode, vNodesCopy) {
1607 if (pnode == pnodeSync)
1608 fHaveSyncNode = true;
1613 StartSync(vNodesCopy);
1615 // Poll the connected nodes for messages
1616 CNode* pnodeTrickle = NULL;
1617 if (!vNodesCopy.empty())
1618 pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
1619 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1623 TRY_LOCK(pnode->cs_vRecv, lockRecv);
1625 ProcessMessages(pnode);
1632 TRY_LOCK(pnode->cs_vSend, lockSend);
1634 SendMessages(pnode, pnode == pnodeTrickle);
1642 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1646 // Wait and allow messages to bunch up.
1647 // Reduce vnThreadsRunning so StopNode has permission to exit while
1648 // we're sleeping, but we must always check fShutdown after doing this.
1649 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1651 if (fRequestShutdown)
1653 vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
1664 bool BindListenPort(const CService &addrBind, string& strError)
1670 // Initialize Windows Sockets
1672 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
1673 if (ret != NO_ERROR)
1675 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
1676 printf("%s\n", strError.c_str());
1681 // Create socket for listening for incoming connections
1683 struct sockaddr_storage sockaddr;
1685 struct sockaddr sockaddr;
1687 socklen_t len = sizeof(sockaddr);
1688 if (!addrBind.GetSockAddr((struct sockaddr*)&sockaddr, &len))
1690 strError = strprintf("Error: bind address family for %s not supported", addrBind.ToString().c_str());
1691 printf("%s\n", strError.c_str());
1695 SOCKET hListenSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP);
1696 if (hListenSocket == INVALID_SOCKET)
1698 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
1699 printf("%s\n", strError.c_str());
1704 // Different way of disabling SIGPIPE on BSD
1705 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
1709 // Allow binding if the port is still in TIME_WAIT state after
1710 // the program was closed and restarted. Not an issue on windows.
1711 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
1716 // Set to non-blocking, incoming connections will also inherit this
1717 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
1719 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
1722 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
1723 printf("%s\n", strError.c_str());
1728 // some systems don't have IPV6_V6ONLY but are always v6only; others do have the option
1729 // and enable it by default or not. Try to enable it, if possible.
1730 if (addrBind.IsIPv6()) {
1733 setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&nOne, sizeof(int));
1735 setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&nOne, sizeof(int));
1739 int nProtLevel = 10 /* PROTECTION_LEVEL_UNRESTRICTED */;
1740 int nParameterId = 23 /* IPV6_PROTECTION_LEVEl */;
1741 // this call is allowed to fail
1742 setsockopt(hListenSocket, IPPROTO_IPV6, nParameterId, (const char*)&nProtLevel, sizeof(int));
1747 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
1749 int nErr = WSAGetLastError();
1750 if (nErr == WSAEADDRINUSE)
1751 strError = strprintf(_("Unable to bind to %s on this computer. NovaCoin is probably already running."), addrBind.ToString().c_str());
1753 strError = strprintf(_("Unable to bind to %s on this computer (bind returned error %d, %s)"), addrBind.ToString().c_str(), nErr, strerror(nErr));
1754 printf("%s\n", strError.c_str());
1757 printf("Bound to %s\n", addrBind.ToString().c_str());
1759 // Listen for incoming connections
1760 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
1762 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
1763 printf("%s\n", strError.c_str());
1767 vhListenSocket.push_back(hListenSocket);
1769 if (addrBind.IsRoutable() && fDiscover)
1770 AddLocal(addrBind, LOCAL_BIND);
1775 void static Discover()
1781 // Get local host IP
1782 char pszHostName[1000] = "";
1783 if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
1785 vector<CNetAddr> vaddr;
1786 if (LookupHost(pszHostName, vaddr))
1788 BOOST_FOREACH (const CNetAddr &addr, vaddr)
1790 AddLocal(addr, LOCAL_IF);
1795 // Get local host ip
1796 struct ifaddrs* myaddrs;
1797 if (getifaddrs(&myaddrs) == 0)
1799 for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
1801 if (ifa->ifa_addr == NULL) continue;
1802 if ((ifa->ifa_flags & IFF_UP) == 0) continue;
1803 if (strcmp(ifa->ifa_name, "lo") == 0) continue;
1804 if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
1805 if (ifa->ifa_addr->sa_family == AF_INET)
1807 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
1808 CNetAddr addr(s4->sin_addr);
1809 if (AddLocal(addr, LOCAL_IF))
1810 printf("IPv4 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
1813 else if (ifa->ifa_addr->sa_family == AF_INET6)
1815 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
1816 CNetAddr addr(s6->sin6_addr);
1817 if (AddLocal(addr, LOCAL_IF))
1818 printf("IPv6 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
1822 freeifaddrs(myaddrs);
1826 // Don't use external IPv4 discovery, when -onlynet="IPv6"
1827 if (!IsLimited(NET_IPV4))
1828 NewThread(ThreadGetMyExternalIP, NULL);
1831 void StartNode(void* parg)
1833 // Make this thread recognisable as the startup thread
1834 RenameThread("novacoin-start");
1836 if (semOutbound == NULL) {
1837 // initialize semaphore
1838 int nMaxOutbound = min(MAX_OUTBOUND_CONNECTIONS, (int)GetArg("-maxconnections", 125));
1839 semOutbound = new CSemaphore(nMaxOutbound);
1842 if (pnodeLocalHost == NULL)
1843 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
1851 if (!GetBoolArg("-dnsseed", true))
1852 printf("DNS seeding disabled\n");
1854 if (!NewThread(ThreadDNSAddressSeed, NULL))
1855 printf("Error: NewThread(ThreadDNSAddressSeed) failed\n");
1857 // Map ports with UPnP
1861 // Get addresses from IRC and advertise ours
1862 if (!NewThread(ThreadIRCSeed, NULL))
1863 printf("Error: NewThread(ThreadIRCSeed) failed\n");
1865 // Send and receive from sockets, accept connections
1866 if (!NewThread(ThreadSocketHandler, NULL))
1867 printf("Error: NewThread(ThreadSocketHandler) failed\n");
1869 // Initiate outbound connections from -addnode
1870 if (!NewThread(ThreadOpenAddedConnections, NULL))
1871 printf("Error: NewThread(ThreadOpenAddedConnections) failed\n");
1873 // Initiate outbound connections
1874 if (!NewThread(ThreadOpenConnections, NULL))
1875 printf("Error: NewThread(ThreadOpenConnections) failed\n");
1878 if (!NewThread(ThreadMessageHandler, NULL))
1879 printf("Error: NewThread(ThreadMessageHandler) failed\n");
1881 // Dump network addresses
1882 if (!NewThread(ThreadDumpAddress, NULL))
1883 printf("Error; NewThread(ThreadDumpAddress) failed\n");
1885 // ppcoin: mint proof-of-stake blocks in the background
1886 if (!NewThread(ThreadStakeMinter, pwalletMain))
1887 printf("Error: NewThread(ThreadStakeMinter) failed\n");
1892 printf("StopNode()\n");
1894 nTransactionsUpdated++;
1895 int64_t nStart = GetTime();
1898 ThreadScriptCheckQuit();
1901 for (int i=0; i<MAX_OUTBOUND_CONNECTIONS; i++)
1902 semOutbound->post();
1905 int nThreadsRunning = 0;
1906 for (int n = 0; n < THREAD_MAX; n++)
1907 nThreadsRunning += vnThreadsRunning[n];
1908 if (nThreadsRunning == 0)
1910 if (GetTime() - nStart > 20)
1914 if (vnThreadsRunning[THREAD_SOCKETHANDLER] > 0) printf("ThreadSocketHandler still running\n");
1915 if (vnThreadsRunning[THREAD_OPENCONNECTIONS] > 0) printf("ThreadOpenConnections still running\n");
1916 if (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0) printf("ThreadMessageHandler still running\n");
1917 if (vnThreadsRunning[THREAD_RPCLISTENER] > 0) printf("ThreadRPCListener still running\n");
1918 if (vnThreadsRunning[THREAD_RPCHANDLER] > 0) printf("ThreadsRPCServer still running\n");
1920 if (vnThreadsRunning[THREAD_UPNP] > 0) printf("ThreadMapPort still running\n");
1922 if (vnThreadsRunning[THREAD_DNSSEED] > 0) printf("ThreadDNSAddressSeed still running\n");
1923 if (vnThreadsRunning[THREAD_ADDEDCONNECTIONS] > 0) printf("ThreadOpenAddedConnections still running\n");
1924 if (vnThreadsRunning[THREAD_DUMPADDRESS] > 0) printf("ThreadDumpAddresses still running\n");
1925 if (vnThreadsRunning[THREAD_MINTER] > 0) printf("ThreadStakeMinter still running\n");
1926 if (vnThreadsRunning[THREAD_SCRIPTCHECK] > 0) printf("ThreadScriptCheck still running\n");
1927 while (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0 || vnThreadsRunning[THREAD_RPCHANDLER] > 0 || vnThreadsRunning[THREAD_SCRIPTCHECK] > 0)
1943 BOOST_FOREACH(CNode* pnode, vNodes)
1944 if (pnode->hSocket != INVALID_SOCKET)
1945 closesocket(pnode->hSocket);
1946 BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
1947 if (hListenSocket != INVALID_SOCKET)
1948 if (closesocket(hListenSocket) == SOCKET_ERROR)
1949 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
1952 // Shutdown Windows Sockets
1957 instance_of_cnetcleanup;
1959 void RelayTransaction(const CTransaction& tx, const uint256& hash)
1961 CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
1964 RelayTransaction(tx, hash, ss);
1967 void RelayTransaction(const CTransaction& tx, const uint256& hash, const CDataStream& ss)
1969 CInv inv(MSG_TX, hash);
1972 // Expire old relay messages
1973 while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
1975 mapRelay.erase(vRelayExpiration.front().second);
1976 vRelayExpiration.pop_front();
1979 // Save original serialized message so newer versions are preserved
1980 mapRelay.insert(std::make_pair(inv, ss));
1981 vRelayExpiration.push_back(std::make_pair(GetTime() + 15 * 60, inv));
1984 RelayInventory(inv);
1987 void CNode::RecordBytesRecv(uint64_t bytes)
1989 LOCK(cs_totalBytesRecv);
1990 nTotalBytesRecv += bytes;
1993 void CNode::RecordBytesSent(uint64_t bytes)
1995 LOCK(cs_totalBytesSent);
1996 nTotalBytesSent += bytes;
1999 uint64_t CNode::GetTotalBytesRecv()
2001 LOCK(cs_totalBytesRecv);
2002 return nTotalBytesRecv;
2005 uint64_t CNode::GetTotalBytesSent()
2007 LOCK(cs_totalBytesSent);
2008 return nTotalBytesSent;