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 0x5360a653, 0x6c47bb25, 0x52568c5f, 0xc6f5c851, 0x6f17f3a2, 0x1d52a9d5, 0x2c1544c1, 0xb8748368,
1157 0x055d6ac1, 0x2490bb25, 0x614488d5, 0xa463f8a2, 0xc54c1256, 0xf72d9252, 0x548432c6, 0xade08368,
1158 0x02bf8f55, 0x79f81c48, 0xeb44a26d, 0x802c0856, 0xe3a8d772, 0xc661c852, 0xde30d4b0, 0x1044d079,
1159 0xa1e1485d, 0x269d5e02, 0x65ec8b5b, 0x4b78a605, 0xac9a1f5f, 0x307c7db0, 0xb75d4880, 0x31aaef53,
1160 0xe9433eb0, 0x8ce0861f, 0x1874695f, 0x6baef986, 0x06cfbf2e, 0x6c2e0082, 0x15e024b0, 0x0d0986bc,
1161 0xe7002d48, 0x064b2d05, 0xba568c5f, 0x3c93fa18, 0xfae6234d, 0xb06f5d02, 0x34e25d02, 0x559425b0,
1162 0x308eae6e, 0x48e15d02, 0x87fee36d, 0x647f5e02, 0xcbfe61bc, 0x3bf377d4, 0x1543075b, 0x3ee84980,
1163 0xde26482e, 0x66a65e02, 0x60cf0fb0, 0xf74c8e4f, 0x88d39a5e, 0x1c385e02, 0x62c4f460, 0x5b26df48,
1164 0x5249515d, 0x2b353f7d, 0xb6e34980, 0x5e7cd23e, 0x5ecc5e02, 0x9349515d, 0x31abbf2e, 0xa8675cb6,
1165 0xa8ce4762, 0x09e5d4b0, 0x6db26805, 0xb4f45d02, 0xfe07e555, 0xb6ab40bc, 0x8be25d02, 0x92bd345f,
1166 0x7122306c, 0x9254c248, 0x8dcc5e02, 0x0d1d5d02, 0x35a2805f, 0x404ef986, 0x5dab696d, 0xf153ad2e,
1167 0xc5c7a988, 0xfafd6d4a, 0xf172a7be, 0x09627bd9, 0x747d695f, 0xaa4a5d02, 0x4d226805, 0x6bb40ab9,
1171 void DumpAddresses()
1173 int64_t nStart = GetTimeMillis();
1178 printf("Flushed %d addresses to peers.dat %" PRId64 "ms\n",
1179 addrman.size(), GetTimeMillis() - nStart);
1182 void ThreadDumpAddress2(void* parg)
1184 vnThreadsRunning[THREAD_DUMPADDRESS]++;
1188 vnThreadsRunning[THREAD_DUMPADDRESS]--;
1190 vnThreadsRunning[THREAD_DUMPADDRESS]++;
1192 vnThreadsRunning[THREAD_DUMPADDRESS]--;
1195 void ThreadDumpAddress(void* parg)
1197 // Make this thread recognisable as the address dumping thread
1198 RenameThread("novacoin-adrdump");
1202 ThreadDumpAddress2(parg);
1204 catch (std::exception& e) {
1205 PrintException(&e, "ThreadDumpAddress()");
1207 printf("ThreadDumpAddress exited\n");
1210 void ThreadOpenConnections(void* parg)
1212 // Make this thread recognisable as the connection opening thread
1213 RenameThread("novacoin-opencon");
1217 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1218 ThreadOpenConnections2(parg);
1219 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1221 catch (std::exception& e) {
1222 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1223 PrintException(&e, "ThreadOpenConnections()");
1225 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1226 PrintException(NULL, "ThreadOpenConnections()");
1228 printf("ThreadOpenConnections exited\n");
1231 void static ProcessOneShot()
1236 if (vOneShots.empty())
1238 strDest = vOneShots.front();
1239 vOneShots.pop_front();
1242 CSemaphoreGrant grant(*semOutbound, true);
1244 if (!OpenNetworkConnection(addr, &grant, strDest.c_str(), true))
1245 AddOneShot(strDest);
1249 // ppcoin: stake minter thread
1250 void static ThreadStakeMinter(void* parg)
1252 printf("ThreadStakeMinter started\n");
1253 CWallet* pwallet = (CWallet*)parg;
1256 vnThreadsRunning[THREAD_MINTER]++;
1257 StakeMiner(pwallet);
1258 vnThreadsRunning[THREAD_MINTER]--;
1260 catch (std::exception& e) {
1261 vnThreadsRunning[THREAD_MINTER]--;
1262 PrintException(&e, "ThreadStakeMinter()");
1264 vnThreadsRunning[THREAD_MINTER]--;
1265 PrintException(NULL, "ThreadStakeMinter()");
1267 printf("ThreadStakeMinter exiting, %d threads remaining\n", vnThreadsRunning[THREAD_MINTER]);
1270 void ThreadOpenConnections2(void* parg)
1272 printf("ThreadOpenConnections started\n");
1274 // Connect to specific addresses
1275 if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0)
1277 for (int64_t nLoop = 0;; nLoop++)
1280 BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
1283 OpenNetworkConnection(addr, NULL, strAddr.c_str());
1284 for (int i = 0; i < 10 && i < nLoop; i++)
1295 // Initiate network connections
1296 int64_t nStart = GetTime();
1301 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1303 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1308 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1309 CSemaphoreGrant grant(*semOutbound);
1310 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1314 // Add seed nodes if IRC isn't working
1315 if (addrman.size()==0 && (GetTime() - nStart > 60) && !fTestNet)
1317 std::vector<CAddress> vAdd;
1318 for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
1320 // It'll only connect to one or two seed nodes because once it connects,
1321 // it'll get a pile of addresses with newer timestamps.
1322 // Seed nodes are given a random 'last seen time' of between one and two
1324 const int64_t nOneWeek = 7*24*60*60;
1326 memcpy(&ip, &pnSeed[i], sizeof(ip));
1327 CAddress addr(CService(ip, GetDefaultPort()));
1328 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
1329 vAdd.push_back(addr);
1331 addrman.Add(vAdd, CNetAddr("127.0.0.1"));
1335 // Choose an address to connect to based on most recently seen
1337 CAddress addrConnect;
1339 // Only connect out to one peer per network group (/16 for IPv4).
1340 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
1342 set<vector<unsigned char> > setConnected;
1345 BOOST_FOREACH(CNode* pnode, vNodes) {
1346 if (!pnode->fInbound) {
1347 setConnected.insert(pnode->addr.GetGroup());
1353 int64_t nANow = GetAdjustedTime();
1358 // use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections)
1359 CAddress addr = addrman.Select(10 + min(nOutbound,8)*10);
1361 // if we selected an invalid address, restart
1362 if (!addr.IsValid() || setConnected.count(addr.GetGroup()) || IsLocal(addr))
1365 // If we didn't find an appropriate destination after trying 100 addresses fetched from addrman,
1366 // stop this loop, and let the outer loop run again (which sleeps, adds seed nodes, recalculates
1367 // already-connected network ranges, ...) before trying new addrman addresses.
1372 if (IsLimited(addr))
1375 // only consider very recently tried nodes after 30 failed attempts
1376 if (nANow - addr.nLastTry < 600 && nTries < 30)
1379 // do not allow non-default ports, unless after 50 invalid addresses selected already
1380 if (addr.GetPort() != GetDefaultPort() && nTries < 50)
1387 if (addrConnect.IsValid())
1388 OpenNetworkConnection(addrConnect, &grant);
1392 void ThreadOpenAddedConnections(void* parg)
1394 // Make this thread recognisable as the connection opening thread
1395 RenameThread("novacoin-opencon");
1399 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1400 ThreadOpenAddedConnections2(parg);
1401 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1403 catch (std::exception& e) {
1404 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1405 PrintException(&e, "ThreadOpenAddedConnections()");
1407 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1408 PrintException(NULL, "ThreadOpenAddedConnections()");
1410 printf("ThreadOpenAddedConnections exited\n");
1413 void ThreadOpenAddedConnections2(void* parg)
1415 printf("ThreadOpenAddedConnections started\n");
1418 LOCK(cs_vAddedNodes);
1419 vAddedNodes = mapMultiArgs["-addnode"];
1422 if (HaveNameProxy()) {
1424 list<string> lAddresses(0);
1426 LOCK(cs_vAddedNodes);
1427 BOOST_FOREACH(string& strAddNode, vAddedNodes)
1428 lAddresses.push_back(strAddNode);
1430 BOOST_FOREACH(string& strAddNode, lAddresses) {
1432 CSemaphoreGrant grant(*semOutbound);
1433 OpenNetworkConnection(addr, &grant, strAddNode.c_str());
1436 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1437 Sleep(120000); // Retry every 2 minutes
1438 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1443 for (uint32_t i = 0; true; i++)
1445 list<string> lAddresses(0);
1447 LOCK(cs_vAddedNodes);
1448 BOOST_FOREACH(string& strAddNode, vAddedNodes)
1449 lAddresses.push_back(strAddNode);
1452 list<vector<CService> > lservAddressesToAdd(0);
1453 BOOST_FOREACH(string& strAddNode, lAddresses)
1455 vector<CService> vservNode(0);
1456 if (Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
1458 lservAddressesToAdd.push_back(vservNode);
1460 LOCK(cs_setservAddNodeAddresses);
1461 BOOST_FOREACH(CService& serv, vservNode)
1462 setservAddNodeAddresses.insert(serv);
1466 // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
1467 // (keeping in mind that addnode entries can have many IPs if fNameLookup)
1470 BOOST_FOREACH(CNode* pnode, vNodes)
1471 for (list<vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
1472 BOOST_FOREACH(CService& addrNode, *(it))
1473 if (pnode->addr == addrNode)
1475 it = lservAddressesToAdd.erase(it);
1480 BOOST_FOREACH(vector<CService>& vserv, lservAddressesToAdd)
1482 if (vserv.size() == 0)
1484 CSemaphoreGrant grant(*semOutbound);
1485 OpenNetworkConnection(CAddress(vserv[i % vserv.size()]), &grant);
1492 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
1493 Sleep(120000); // Retry every 2 minutes
1494 vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
1500 // if successful, this moves the passed grant to the constructed node
1501 bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound, const char *strDest, bool fOneShot)
1504 // Initiate outbound network connection
1509 if (IsLocal(addrConnect) ||
1510 FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect) ||
1511 FindNode(addrConnect.ToStringIPPort().c_str()))
1513 if (strDest && FindNode(strDest))
1516 vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
1517 CNode* pnode = ConnectNode(addrConnect, strDest);
1518 vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
1524 grantOutbound->MoveTo(pnode->grantOutbound);
1525 pnode->fNetworkNode = true;
1527 pnode->fOneShot = true;
1532 // for now, use a very simple selection metric: the node from which we received
1534 double static NodeSyncScore(const CNode *pnode) {
1535 return -pnode->nLastRecv;
1538 void static StartSync(const vector<CNode*> &vNodes) {
1539 CNode *pnodeNewSync = NULL;
1540 double dBestScore = 0;
1542 // Iterate over all nodes
1543 BOOST_FOREACH(CNode* pnode, vNodes) {
1544 // check preconditions for allowing a sync
1545 if (!pnode->fClient && !pnode->fOneShot &&
1546 !pnode->fDisconnect && pnode->fSuccessfullyConnected &&
1547 (pnode->nStartingHeight > (nBestHeight - 144)) &&
1548 (pnode->nVersion < NOBLKS_VERSION_START || pnode->nVersion >= NOBLKS_VERSION_END)) {
1549 // if ok, compare node's score with the best so far
1550 double dScore = NodeSyncScore(pnode);
1551 if (pnodeNewSync == NULL || dScore > dBestScore) {
1552 pnodeNewSync = pnode;
1553 dBestScore = dScore;
1557 // if a new sync candidate was found, start sync!
1559 pnodeNewSync->fStartSync = true;
1560 pnodeSync = pnodeNewSync;
1564 void ThreadMessageHandler(void* parg)
1566 // Make this thread recognisable as the message handling thread
1567 RenameThread("novacoin-msghand");
1571 vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
1572 ThreadMessageHandler2(parg);
1573 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1575 catch (std::exception& e) {
1576 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1577 PrintException(&e, "ThreadMessageHandler()");
1579 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1580 PrintException(NULL, "ThreadMessageHandler()");
1582 printf("ThreadMessageHandler exited\n");
1585 void ThreadMessageHandler2(void* parg)
1587 printf("ThreadMessageHandler started\n");
1588 SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
1591 bool fHaveSyncNode = false;
1592 vector<CNode*> vNodesCopy;
1595 vNodesCopy = vNodes;
1596 BOOST_FOREACH(CNode* pnode, vNodesCopy) {
1598 if (pnode == pnodeSync)
1599 fHaveSyncNode = true;
1604 StartSync(vNodesCopy);
1606 // Poll the connected nodes for messages
1607 CNode* pnodeTrickle = NULL;
1608 if (!vNodesCopy.empty())
1609 pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
1610 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1614 TRY_LOCK(pnode->cs_vRecv, lockRecv);
1616 ProcessMessages(pnode);
1623 TRY_LOCK(pnode->cs_vSend, lockSend);
1625 SendMessages(pnode, pnode == pnodeTrickle);
1633 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1637 // Wait and allow messages to bunch up.
1638 // Reduce vnThreadsRunning so StopNode has permission to exit while
1639 // we're sleeping, but we must always check fShutdown after doing this.
1640 vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
1642 if (fRequestShutdown)
1644 vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
1655 bool BindListenPort(const CService &addrBind, string& strError)
1661 // Initialize Windows Sockets
1663 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
1664 if (ret != NO_ERROR)
1666 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
1667 printf("%s\n", strError.c_str());
1672 // Create socket for listening for incoming connections
1674 struct sockaddr_storage sockaddr;
1676 struct sockaddr sockaddr;
1678 socklen_t len = sizeof(sockaddr);
1679 if (!addrBind.GetSockAddr((struct sockaddr*)&sockaddr, &len))
1681 strError = strprintf("Error: bind address family for %s not supported", addrBind.ToString().c_str());
1682 printf("%s\n", strError.c_str());
1686 SOCKET hListenSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP);
1687 if (hListenSocket == INVALID_SOCKET)
1689 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
1690 printf("%s\n", strError.c_str());
1695 // Different way of disabling SIGPIPE on BSD
1696 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
1700 // Allow binding if the port is still in TIME_WAIT state after
1701 // the program was closed and restarted. Not an issue on windows.
1702 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
1707 // Set to non-blocking, incoming connections will also inherit this
1708 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
1710 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
1713 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
1714 printf("%s\n", strError.c_str());
1719 // some systems don't have IPV6_V6ONLY but are always v6only; others do have the option
1720 // and enable it by default or not. Try to enable it, if possible.
1721 if (addrBind.IsIPv6()) {
1724 setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&nOne, sizeof(int));
1726 setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&nOne, sizeof(int));
1730 int nProtLevel = 10 /* PROTECTION_LEVEL_UNRESTRICTED */;
1731 int nParameterId = 23 /* IPV6_PROTECTION_LEVEl */;
1732 // this call is allowed to fail
1733 setsockopt(hListenSocket, IPPROTO_IPV6, nParameterId, (const char*)&nProtLevel, sizeof(int));
1738 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
1740 int nErr = WSAGetLastError();
1741 if (nErr == WSAEADDRINUSE)
1742 strError = strprintf(_("Unable to bind to %s on this computer. NovaCoin is probably already running."), addrBind.ToString().c_str());
1744 strError = strprintf(_("Unable to bind to %s on this computer (bind returned error %d, %s)"), addrBind.ToString().c_str(), nErr, strerror(nErr));
1745 printf("%s\n", strError.c_str());
1748 printf("Bound to %s\n", addrBind.ToString().c_str());
1750 // Listen for incoming connections
1751 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
1753 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
1754 printf("%s\n", strError.c_str());
1758 vhListenSocket.push_back(hListenSocket);
1760 if (addrBind.IsRoutable() && fDiscover)
1761 AddLocal(addrBind, LOCAL_BIND);
1766 void static Discover()
1772 // Get local host IP
1773 char pszHostName[1000] = "";
1774 if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
1776 vector<CNetAddr> vaddr;
1777 if (LookupHost(pszHostName, vaddr))
1779 BOOST_FOREACH (const CNetAddr &addr, vaddr)
1781 AddLocal(addr, LOCAL_IF);
1786 // Get local host ip
1787 struct ifaddrs* myaddrs;
1788 if (getifaddrs(&myaddrs) == 0)
1790 for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
1792 if (ifa->ifa_addr == NULL) continue;
1793 if ((ifa->ifa_flags & IFF_UP) == 0) continue;
1794 if (strcmp(ifa->ifa_name, "lo") == 0) continue;
1795 if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
1796 if (ifa->ifa_addr->sa_family == AF_INET)
1798 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
1799 CNetAddr addr(s4->sin_addr);
1800 if (AddLocal(addr, LOCAL_IF))
1801 printf("IPv4 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
1804 else if (ifa->ifa_addr->sa_family == AF_INET6)
1806 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
1807 CNetAddr addr(s6->sin6_addr);
1808 if (AddLocal(addr, LOCAL_IF))
1809 printf("IPv6 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
1813 freeifaddrs(myaddrs);
1817 // Don't use external IPv4 discovery, when -onlynet="IPv6"
1818 if (!IsLimited(NET_IPV4))
1819 NewThread(ThreadGetMyExternalIP, NULL);
1822 void StartNode(void* parg)
1824 // Make this thread recognisable as the startup thread
1825 RenameThread("novacoin-start");
1827 if (semOutbound == NULL) {
1828 // initialize semaphore
1829 int nMaxOutbound = min(MAX_OUTBOUND_CONNECTIONS, (int)GetArg("-maxconnections", 125));
1830 semOutbound = new CSemaphore(nMaxOutbound);
1833 if (pnodeLocalHost == NULL)
1834 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
1842 if (!GetBoolArg("-dnsseed", true))
1843 printf("DNS seeding disabled\n");
1845 if (!NewThread(ThreadDNSAddressSeed, NULL))
1846 printf("Error: NewThread(ThreadDNSAddressSeed) failed\n");
1848 // Map ports with UPnP
1852 // Get addresses from IRC and advertise ours
1853 if (!NewThread(ThreadIRCSeed, NULL))
1854 printf("Error: NewThread(ThreadIRCSeed) failed\n");
1856 // Send and receive from sockets, accept connections
1857 if (!NewThread(ThreadSocketHandler, NULL))
1858 printf("Error: NewThread(ThreadSocketHandler) failed\n");
1860 // Initiate outbound connections from -addnode
1861 if (!NewThread(ThreadOpenAddedConnections, NULL))
1862 printf("Error: NewThread(ThreadOpenAddedConnections) failed\n");
1864 // Initiate outbound connections
1865 if (!NewThread(ThreadOpenConnections, NULL))
1866 printf("Error: NewThread(ThreadOpenConnections) failed\n");
1869 if (!NewThread(ThreadMessageHandler, NULL))
1870 printf("Error: NewThread(ThreadMessageHandler) failed\n");
1872 // Dump network addresses
1873 if (!NewThread(ThreadDumpAddress, NULL))
1874 printf("Error; NewThread(ThreadDumpAddress) failed\n");
1876 // ppcoin: mint proof-of-stake blocks in the background
1877 if (!NewThread(ThreadStakeMinter, pwalletMain))
1878 printf("Error: NewThread(ThreadStakeMinter) failed\n");
1883 printf("StopNode()\n");
1885 nTransactionsUpdated++;
1886 int64_t nStart = GetTime();
1889 ThreadScriptCheckQuit();
1892 for (int i=0; i<MAX_OUTBOUND_CONNECTIONS; i++)
1893 semOutbound->post();
1896 int nThreadsRunning = 0;
1897 for (int n = 0; n < THREAD_MAX; n++)
1898 nThreadsRunning += vnThreadsRunning[n];
1899 if (nThreadsRunning == 0)
1901 if (GetTime() - nStart > 20)
1905 if (vnThreadsRunning[THREAD_SOCKETHANDLER] > 0) printf("ThreadSocketHandler still running\n");
1906 if (vnThreadsRunning[THREAD_OPENCONNECTIONS] > 0) printf("ThreadOpenConnections still running\n");
1907 if (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0) printf("ThreadMessageHandler still running\n");
1908 if (vnThreadsRunning[THREAD_RPCLISTENER] > 0) printf("ThreadRPCListener still running\n");
1909 if (vnThreadsRunning[THREAD_RPCHANDLER] > 0) printf("ThreadsRPCServer still running\n");
1911 if (vnThreadsRunning[THREAD_UPNP] > 0) printf("ThreadMapPort still running\n");
1913 if (vnThreadsRunning[THREAD_DNSSEED] > 0) printf("ThreadDNSAddressSeed still running\n");
1914 if (vnThreadsRunning[THREAD_ADDEDCONNECTIONS] > 0) printf("ThreadOpenAddedConnections still running\n");
1915 if (vnThreadsRunning[THREAD_DUMPADDRESS] > 0) printf("ThreadDumpAddresses still running\n");
1916 if (vnThreadsRunning[THREAD_MINTER] > 0) printf("ThreadStakeMinter still running\n");
1917 if (vnThreadsRunning[THREAD_SCRIPTCHECK] > 0) printf("ThreadScriptCheck still running\n");
1918 while (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0 || vnThreadsRunning[THREAD_RPCHANDLER] > 0 || vnThreadsRunning[THREAD_SCRIPTCHECK] > 0)
1934 BOOST_FOREACH(CNode* pnode, vNodes)
1935 if (pnode->hSocket != INVALID_SOCKET)
1936 closesocket(pnode->hSocket);
1937 BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
1938 if (hListenSocket != INVALID_SOCKET)
1939 if (closesocket(hListenSocket) == SOCKET_ERROR)
1940 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
1943 // Shutdown Windows Sockets
1948 instance_of_cnetcleanup;
1950 void RelayTransaction(const CTransaction& tx, const uint256& hash)
1952 CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
1955 RelayTransaction(tx, hash, ss);
1958 void RelayTransaction(const CTransaction& tx, const uint256& hash, const CDataStream& ss)
1960 CInv inv(MSG_TX, hash);
1963 // Expire old relay messages
1964 while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
1966 mapRelay.erase(vRelayExpiration.front().second);
1967 vRelayExpiration.pop_front();
1970 // Save original serialized message so newer versions are preserved
1971 mapRelay.insert(std::make_pair(inv, ss));
1972 vRelayExpiration.push_back(std::make_pair(GetTime() + 15 * 60, inv));
1975 RelayInventory(inv);
1978 void CNode::RecordBytesRecv(uint64_t bytes)
1980 LOCK(cs_totalBytesRecv);
1981 nTotalBytesRecv += bytes;
1984 void CNode::RecordBytesSent(uint64_t bytes)
1986 LOCK(cs_totalBytesSent);
1987 nTotalBytesSent += bytes;
1990 uint64_t CNode::GetTotalBytesRecv()
1992 LOCK(cs_totalBytesRecv);
1993 return nTotalBytesRecv;
1996 uint64_t CNode::GetTotalBytesSent()
1998 LOCK(cs_totalBytesSent);
1999 return nTotalBytesSent;