1 // Copyright (c) 2009-2010 Satoshi Nakamoto
2 // Copyright (c) 2011 The Bitcoin developers
3 // Distributed under the MIT/X11 software license, see the accompanying
4 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
18 #include <miniupnpc/miniwget.h>
19 #include <miniupnpc/miniupnpc.h>
20 #include <miniupnpc/upnpcommands.h>
21 #include <miniupnpc/upnperrors.h>
25 using namespace boost;
27 static const int MAX_OUTBOUND_CONNECTIONS = 8;
29 void ThreadMessageHandler2(void* parg);
30 void ThreadSocketHandler2(void* parg);
31 void ThreadOpenConnections2(void* parg);
32 void ThreadOpenAddedConnections2(void* parg);
34 void ThreadMapPort2(void* parg);
36 void ThreadDNSAddressSeed2(void* parg);
37 bool OpenNetworkConnection(const CAddress& addrConnect);
44 // Global state variables
47 bool fAllowDNS = false;
48 uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
49 CAddress addrLocalHost(CService("0.0.0.0", 0), nLocalServices);
50 static CNode* pnodeLocalHost = NULL;
51 uint64 nLocalHostNonce = 0;
52 array<int, 10> vnThreadsRunning;
53 static SOCKET hListenSocket = INVALID_SOCKET;
55 vector<CNode*> vNodes;
56 CCriticalSection cs_vNodes;
57 map<vector<unsigned char>, CAddress> mapAddresses;
58 CCriticalSection cs_mapAddresses;
59 map<CInv, CDataStream> mapRelay;
60 deque<pair<int64, CInv> > vRelayExpiration;
61 CCriticalSection cs_mapRelay;
62 map<CInv, int64> mapAlreadyAskedFor;
65 set<CNetAddr> setservAddNodeAddresses;
66 CCriticalSection cs_setservAddNodeAddresses;
71 unsigned short GetListenPort()
73 return (unsigned short)(GetArg("-port", GetDefaultPort()));
76 void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd)
78 // Filter out duplicate requests
79 if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd)
81 pindexLastGetBlocksBegin = pindexBegin;
82 hashLastGetBlocksEnd = hashEnd;
84 PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);
91 bool GetMyExternalIP2(const CService& addrConnect, const char* pszGet, const char* pszKeyword, CNetAddr& ipRet)
94 if (!ConnectSocket(addrConnect, hSocket))
95 return error("GetMyExternalIP() : connection to %s failed", addrConnect.ToString().c_str());
97 send(hSocket, pszGet, strlen(pszGet), MSG_NOSIGNAL);
100 while (RecvLine(hSocket, strLine))
102 if (strLine.empty()) // HTTP response is separated from headers by blank line
106 if (!RecvLine(hSocket, strLine))
108 closesocket(hSocket);
111 if (pszKeyword == NULL)
113 if (strLine.find(pszKeyword) != -1)
115 strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
119 closesocket(hSocket);
120 if (strLine.find("<") != -1)
121 strLine = strLine.substr(0, strLine.find("<"));
122 strLine = strLine.substr(strspn(strLine.c_str(), " \t\n\r"));
123 while (strLine.size() > 0 && isspace(strLine[strLine.size()-1]))
124 strLine.resize(strLine.size()-1);
125 CService addr(strLine,0,true);
126 printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
127 if (!addr.IsValid() || !addr.IsRoutable())
133 closesocket(hSocket);
134 return error("GetMyExternalIP() : connection closed");
137 // We now get our external IP from the IRC server first and only use this as a backup
138 bool GetMyExternalIP(CNetAddr& ipRet)
140 CService addrConnect;
142 const char* pszKeyword;
147 for (int nLookup = 0; nLookup <= 1; nLookup++)
148 for (int nHost = 1; nHost <= 2; nHost++)
150 // We should be phasing out our use of sites like these. If we need
151 // replacements, we should ask for volunteers to put this simple
152 // php file on their webserver that prints the client IP:
153 // <?php echo $_SERVER["REMOTE_ADDR"]; ?>
156 addrConnect = CService("91.198.22.70",80); // checkip.dyndns.org
160 CService addrIP("checkip.dyndns.org", 80, true);
161 if (addrIP.IsValid())
162 addrConnect = addrIP;
165 pszGet = "GET / HTTP/1.1\r\n"
166 "Host: checkip.dyndns.org\r\n"
167 "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
168 "Connection: close\r\n"
171 pszKeyword = "Address:";
175 addrConnect = CService("74.208.43.192", 80); // www.showmyip.com
179 CService addrIP("www.showmyip.com", 80, true);
180 if (addrIP.IsValid())
181 addrConnect = addrIP;
184 pszGet = "GET /simple/ HTTP/1.1\r\n"
185 "Host: www.showmyip.com\r\n"
186 "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
187 "Connection: close\r\n"
190 pszKeyword = NULL; // Returns just IP address
193 if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
200 void ThreadGetMyExternalIP(void* parg)
202 // Wait for IRC to get it first
203 if (!GetBoolArg("-noirc"))
205 for (int i = 0; i < 2 * 60; i++)
208 if (fGotExternalIP || fShutdown)
213 // Fallback in case IRC fails to get it
214 if (GetMyExternalIP(addrLocalHost))
216 printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
217 if (addrLocalHost.IsRoutable())
219 // If we already connected to a few before we had our IP, go back and addr them.
220 // setAddrKnown automatically filters any duplicate sends.
221 CAddress addr(addrLocalHost);
222 addr.nTime = GetAdjustedTime();
223 CRITICAL_BLOCK(cs_vNodes)
224 BOOST_FOREACH(CNode* pnode, vNodes)
225 pnode->PushAddress(addr);
234 bool AddAddress(CAddress addr, int64 nTimePenalty, CAddrDB *pAddrDB)
236 if (!addr.IsRoutable())
238 if ((CService)addr == (CService)addrLocalHost)
240 addr.nTime = max((int64)0, (int64)addr.nTime - nTimePenalty);
241 bool fUpdated = false;
243 CAddress addrFound = addr;
245 CRITICAL_BLOCK(cs_mapAddresses)
247 map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
248 if (it == mapAddresses.end())
251 printf("AddAddress(%s)\n", addr.ToString().c_str());
252 mapAddresses.insert(make_pair(addr.GetKey(), addr));
258 addrFound = (*it).second;
259 if ((addrFound.nServices | addr.nServices) != addrFound.nServices)
261 // Services have been added
262 addrFound.nServices |= addr.nServices;
265 bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
266 int64 nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
267 if (addrFound.nTime < addr.nTime - nUpdateInterval)
269 // Periodically update most recently seen time
270 addrFound.nTime = addr.nTime;
275 // There is a nasty deadlock bug if this is done inside the cs_mapAddresses
277 // Thread 1: begin db transaction (locks inside-db-mutex)
278 // then AddAddress (locks cs_mapAddresses)
279 // Thread 2: AddAddress (locks cs_mapAddresses)
280 // ... then db operation hangs waiting for inside-db-mutex
284 pAddrDB->WriteAddress(addrFound);
286 CAddrDB().WriteAddress(addrFound);
291 void AddressCurrentlyConnected(const CService& addr)
293 CAddress *paddrFound = NULL;
295 CRITICAL_BLOCK(cs_mapAddresses)
297 // Only if it's been published already
298 map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
299 if (it != mapAddresses.end())
300 paddrFound = &(*it).second;
305 int64 nUpdateInterval = 20 * 60;
306 if (paddrFound->nTime < GetAdjustedTime() - nUpdateInterval)
308 // Periodically update most recently seen time
309 paddrFound->nTime = GetAdjustedTime();
311 addrdb.WriteAddress(*paddrFound);
320 void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1)
322 // If the dialog might get closed before the reply comes back,
323 // call this in the destructor so it doesn't get called after it's deleted.
324 CRITICAL_BLOCK(cs_vNodes)
326 BOOST_FOREACH(CNode* pnode, vNodes)
328 CRITICAL_BLOCK(pnode->cs_mapRequests)
330 for (map<uint256, CRequestTracker>::iterator mi = pnode->mapRequests.begin(); mi != pnode->mapRequests.end();)
332 CRequestTracker& tracker = (*mi).second;
333 if (tracker.fn == fn && tracker.param1 == param1)
334 pnode->mapRequests.erase(mi++);
350 // Subscription methods for the broadcast and subscription system.
351 // Channel numbers are message numbers, i.e. MSG_TABLE and MSG_PRODUCT.
353 // The subscription system uses a meet-in-the-middle strategy.
354 // With 100,000 nodes, if senders broadcast to 1000 random nodes and receivers
355 // subscribe to 1000 random nodes, 99.995% (1 - 0.99^1000) of messages will get through.
358 bool AnySubscribed(unsigned int nChannel)
360 if (pnodeLocalHost->IsSubscribed(nChannel))
362 CRITICAL_BLOCK(cs_vNodes)
363 BOOST_FOREACH(CNode* pnode, vNodes)
364 if (pnode->IsSubscribed(nChannel))
369 bool CNode::IsSubscribed(unsigned int nChannel)
371 if (nChannel >= vfSubscribe.size())
373 return vfSubscribe[nChannel];
376 void CNode::Subscribe(unsigned int nChannel, unsigned int nHops)
378 if (nChannel >= vfSubscribe.size())
381 if (!AnySubscribed(nChannel))
384 CRITICAL_BLOCK(cs_vNodes)
385 BOOST_FOREACH(CNode* pnode, vNodes)
387 pnode->PushMessage("subscribe", nChannel, nHops);
390 vfSubscribe[nChannel] = true;
393 void CNode::CancelSubscribe(unsigned int nChannel)
395 if (nChannel >= vfSubscribe.size())
398 // Prevent from relaying cancel if wasn't subscribed
399 if (!vfSubscribe[nChannel])
401 vfSubscribe[nChannel] = false;
403 if (!AnySubscribed(nChannel))
405 // Relay subscription cancel
406 CRITICAL_BLOCK(cs_vNodes)
407 BOOST_FOREACH(CNode* pnode, vNodes)
409 pnode->PushMessage("sub-cancel", nChannel);
421 CNode* FindNode(const CNetAddr& ip)
423 CRITICAL_BLOCK(cs_vNodes)
425 BOOST_FOREACH(CNode* pnode, vNodes)
426 if ((CNetAddr)pnode->addr == ip)
432 CNode* FindNode(const CService& addr)
434 CRITICAL_BLOCK(cs_vNodes)
436 BOOST_FOREACH(CNode* pnode, vNodes)
437 if ((CService)pnode->addr == addr)
443 CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
445 if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost)
448 // Look for an existing connection
449 CNode* pnode = FindNode((CService)addrConnect);
453 pnode->AddRef(nTimeout);
460 printf("trying connection %s lastseen=%.1fhrs lasttry=%.1fhrs\n",
461 addrConnect.ToString().c_str(),
462 (double)(addrConnect.nTime - GetAdjustedTime())/3600.0,
463 (double)(addrConnect.nLastTry - GetAdjustedTime())/3600.0);
465 CRITICAL_BLOCK(cs_mapAddresses)
466 mapAddresses[addrConnect.GetKey()].nLastTry = GetAdjustedTime();
470 if (ConnectSocket(addrConnect, hSocket))
473 printf("connected %s\n", addrConnect.ToString().c_str());
475 // Set to nonblocking
478 if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
479 printf("ConnectSocket() : ioctlsocket nonblocking setting failed, error %d\n", WSAGetLastError());
481 if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
482 printf("ConnectSocket() : fcntl nonblocking setting failed, error %d\n", errno);
486 CNode* pnode = new CNode(hSocket, addrConnect, false);
488 pnode->AddRef(nTimeout);
491 CRITICAL_BLOCK(cs_vNodes)
492 vNodes.push_back(pnode);
494 pnode->nTimeConnected = GetTime();
503 void CNode::CloseSocketDisconnect()
506 if (hSocket != INVALID_SOCKET)
509 printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
510 printf("disconnecting node %s\n", addr.ToString().c_str());
511 closesocket(hSocket);
512 hSocket = INVALID_SOCKET;
516 void CNode::Cleanup()
518 // All of a nodes broadcasts and subscriptions are automatically torn down
519 // when it goes down, so a node has to stay up to keep its broadcast going.
521 // Cancel subscriptions
522 for (unsigned int nChannel = 0; nChannel < vfSubscribe.size(); nChannel++)
523 if (vfSubscribe[nChannel])
524 CancelSubscribe(nChannel);
528 void CNode::PushVersion()
530 /// when NTP implemented, change to just nTime = GetAdjustedTime()
531 int64 nTime = (fInbound ? GetAdjustedTime() : GetTime());
532 CAddress addrYou = (fUseProxy ? CAddress(CService("0.0.0.0",0)) : addr);
533 CAddress addrMe = (fUseProxy ? CAddress(CService("0.0.0.0",0)) : addrLocalHost);
534 RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
535 PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe,
536 nLocalHostNonce, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()), nBestHeight);
543 std::map<CNetAddr, int64> CNode::setBanned;
544 CCriticalSection CNode::cs_setBanned;
546 void CNode::ClearBanned()
551 bool CNode::IsBanned(CNetAddr ip)
553 bool fResult = false;
554 CRITICAL_BLOCK(cs_setBanned)
556 std::map<CNetAddr, int64>::iterator i = setBanned.find(ip);
557 if (i != setBanned.end())
559 int64 t = (*i).second;
567 bool CNode::Misbehaving(int howmuch)
571 printf("Warning: local node %s misbehaving\n", addr.ToString().c_str());
575 nMisbehavior += howmuch;
576 if (nMisbehavior >= GetArg("-banscore", 100))
578 int64 banTime = GetTime()+GetArg("-bantime", 60*60*24); // Default 24-hour ban
579 CRITICAL_BLOCK(cs_setBanned)
580 if (setBanned[addr] < banTime)
581 setBanned[addr] = banTime;
582 CloseSocketDisconnect();
583 printf("Disconnected %s for misbehavior (score=%d)\n", addr.ToString().c_str(), nMisbehavior);
600 void ThreadSocketHandler(void* parg)
602 IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
605 vnThreadsRunning[0]++;
606 ThreadSocketHandler2(parg);
607 vnThreadsRunning[0]--;
609 catch (std::exception& e) {
610 vnThreadsRunning[0]--;
611 PrintException(&e, "ThreadSocketHandler()");
613 vnThreadsRunning[0]--;
614 throw; // support pthread_cancel()
616 printf("ThreadSocketHandler exiting\n");
619 void ThreadSocketHandler2(void* parg)
621 printf("ThreadSocketHandler started\n");
622 list<CNode*> vNodesDisconnected;
623 int nPrevNodeCount = 0;
630 CRITICAL_BLOCK(cs_vNodes)
632 // Disconnect unused nodes
633 vector<CNode*> vNodesCopy = vNodes;
634 BOOST_FOREACH(CNode* pnode, vNodesCopy)
636 if (pnode->fDisconnect ||
637 (pnode->GetRefCount() <= 0 && pnode->vRecv.empty() && pnode->vSend.empty()))
639 // remove from vNodes
640 vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
642 // close socket and cleanup
643 pnode->CloseSocketDisconnect();
646 // hold in disconnected pool until all refs are released
647 pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 15 * 60);
648 if (pnode->fNetworkNode || pnode->fInbound)
650 vNodesDisconnected.push_back(pnode);
654 // Delete disconnected nodes
655 list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
656 BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
658 // wait until threads are done using it
659 if (pnode->GetRefCount() <= 0)
661 bool fDelete = false;
662 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
663 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
664 TRY_CRITICAL_BLOCK(pnode->cs_mapRequests)
665 TRY_CRITICAL_BLOCK(pnode->cs_inventory)
669 vNodesDisconnected.remove(pnode);
675 if (vNodes.size() != nPrevNodeCount)
677 nPrevNodeCount = vNodes.size();
683 // Find which sockets have data to receive
685 struct timeval timeout;
687 timeout.tv_usec = 50000; // frequency to poll pnode->vSend
694 FD_ZERO(&fdsetError);
695 SOCKET hSocketMax = 0;
697 if(hListenSocket != INVALID_SOCKET)
698 FD_SET(hListenSocket, &fdsetRecv);
699 hSocketMax = max(hSocketMax, hListenSocket);
700 CRITICAL_BLOCK(cs_vNodes)
702 BOOST_FOREACH(CNode* pnode, vNodes)
704 if (pnode->hSocket == INVALID_SOCKET)
706 FD_SET(pnode->hSocket, &fdsetRecv);
707 FD_SET(pnode->hSocket, &fdsetError);
708 hSocketMax = max(hSocketMax, pnode->hSocket);
709 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
710 if (!pnode->vSend.empty())
711 FD_SET(pnode->hSocket, &fdsetSend);
715 vnThreadsRunning[0]--;
716 int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
717 vnThreadsRunning[0]++;
720 if (nSelect == SOCKET_ERROR)
722 int nErr = WSAGetLastError();
725 printf("socket select error %d\n", nErr);
726 for (int i = 0; i <= hSocketMax; i++)
727 FD_SET(i, &fdsetRecv);
730 FD_ZERO(&fdsetError);
731 Sleep(timeout.tv_usec/1000);
736 // Accept new connections
738 if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
740 struct sockaddr_in sockaddr;
741 socklen_t len = sizeof(sockaddr);
742 SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
743 CAddress addr(sockaddr);
746 CRITICAL_BLOCK(cs_vNodes)
747 BOOST_FOREACH(CNode* pnode, vNodes)
750 if (hSocket == INVALID_SOCKET)
752 if (WSAGetLastError() != WSAEWOULDBLOCK)
753 printf("socket error accept failed: %d\n", WSAGetLastError());
755 else if (nInbound >= GetArg("-maxconnections", 125) - MAX_OUTBOUND_CONNECTIONS)
757 CRITICAL_BLOCK(cs_setservAddNodeAddresses)
758 if (!setservAddNodeAddresses.count(addr))
759 closesocket(hSocket);
761 else if (CNode::IsBanned(addr))
763 printf("connetion from %s dropped (banned)\n", addr.ToString().c_str());
764 closesocket(hSocket);
768 printf("accepted connection %s\n", addr.ToString().c_str());
769 CNode* pnode = new CNode(hSocket, addr, true);
771 CRITICAL_BLOCK(cs_vNodes)
772 vNodes.push_back(pnode);
778 // Service each socket
780 vector<CNode*> vNodesCopy;
781 CRITICAL_BLOCK(cs_vNodes)
784 BOOST_FOREACH(CNode* pnode, vNodesCopy)
787 BOOST_FOREACH(CNode* pnode, vNodesCopy)
795 if (pnode->hSocket == INVALID_SOCKET)
797 if (FD_ISSET(pnode->hSocket, &fdsetRecv) || FD_ISSET(pnode->hSocket, &fdsetError))
799 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
801 CDataStream& vRecv = pnode->vRecv;
802 unsigned int nPos = vRecv.size();
804 if (nPos > ReceiveBufferSize()) {
805 if (!pnode->fDisconnect)
806 printf("socket recv flood control disconnect (%d bytes)\n", vRecv.size());
807 pnode->CloseSocketDisconnect();
810 // typical socket buffer is 8K-64K
811 char pchBuf[0x10000];
812 int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT);
815 vRecv.resize(nPos + nBytes);
816 memcpy(&vRecv[nPos], pchBuf, nBytes);
817 pnode->nLastRecv = GetTime();
819 else if (nBytes == 0)
821 // socket closed gracefully
822 if (!pnode->fDisconnect)
823 printf("socket closed\n");
824 pnode->CloseSocketDisconnect();
829 int nErr = WSAGetLastError();
830 if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
832 if (!pnode->fDisconnect)
833 printf("socket recv error %d\n", nErr);
834 pnode->CloseSocketDisconnect();
844 if (pnode->hSocket == INVALID_SOCKET)
846 if (FD_ISSET(pnode->hSocket, &fdsetSend))
848 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
850 CDataStream& vSend = pnode->vSend;
853 int nBytes = send(pnode->hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL | MSG_DONTWAIT);
856 vSend.erase(vSend.begin(), vSend.begin() + nBytes);
857 pnode->nLastSend = GetTime();
862 int nErr = WSAGetLastError();
863 if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
865 printf("socket send error %d\n", nErr);
866 pnode->CloseSocketDisconnect();
869 if (vSend.size() > SendBufferSize()) {
870 if (!pnode->fDisconnect)
871 printf("socket send flood control disconnect (%d bytes)\n", vSend.size());
872 pnode->CloseSocketDisconnect();
879 // Inactivity checking
881 if (pnode->vSend.empty())
882 pnode->nLastSendEmpty = GetTime();
883 if (GetTime() - pnode->nTimeConnected > 60)
885 if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
887 printf("socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
888 pnode->fDisconnect = true;
890 else if (GetTime() - pnode->nLastSend > 90*60 && GetTime() - pnode->nLastSendEmpty > 90*60)
892 printf("socket not sending\n");
893 pnode->fDisconnect = true;
895 else if (GetTime() - pnode->nLastRecv > 90*60)
897 printf("socket inactivity timeout\n");
898 pnode->fDisconnect = true;
902 CRITICAL_BLOCK(cs_vNodes)
904 BOOST_FOREACH(CNode* pnode, vNodesCopy)
921 void ThreadMapPort(void* parg)
923 IMPLEMENT_RANDOMIZE_STACK(ThreadMapPort(parg));
926 vnThreadsRunning[5]++;
927 ThreadMapPort2(parg);
928 vnThreadsRunning[5]--;
930 catch (std::exception& e) {
931 vnThreadsRunning[5]--;
932 PrintException(&e, "ThreadMapPort()");
934 vnThreadsRunning[5]--;
935 PrintException(NULL, "ThreadMapPort()");
937 printf("ThreadMapPort exiting\n");
940 void ThreadMapPort2(void* parg)
942 printf("ThreadMapPort started\n");
945 sprintf(port, "%d", GetListenPort());
947 const char * multicastif = 0;
948 const char * minissdpdpath = 0;
949 struct UPNPDev * devlist = 0;
952 #ifndef UPNPDISCOVER_SUCCESS
954 devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
958 devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
961 struct UPNPUrls urls;
962 struct IGDdatas data;
965 r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
968 string strDesc = "Bitcoin " + FormatFullVersion();
969 #ifndef UPNPDISCOVER_SUCCESS
971 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
972 port, port, lanaddr, strDesc.c_str(), "TCP", 0);
975 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
976 port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
979 if(r!=UPNPCOMMAND_SUCCESS)
980 printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
981 port, port, lanaddr, r, strupnperror(r));
983 printf("UPnP Port Mapping successful.\n");
985 if (fShutdown || !fUseUPnP)
987 r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port, "TCP", 0);
988 printf("UPNP_DeletePortMapping() returned : %d\n", r);
989 freeUPNPDevlist(devlist); devlist = 0;
996 printf("No valid UPnP IGDs found\n");
997 freeUPNPDevlist(devlist); devlist = 0;
1001 if (fShutdown || !fUseUPnP)
1008 void MapPort(bool fMapPort)
1010 if (fUseUPnP != fMapPort)
1012 fUseUPnP = fMapPort;
1013 WriteSetting("fUseUPnP", fUseUPnP);
1015 if (fUseUPnP && vnThreadsRunning[5] < 1)
1017 if (!CreateThread(ThreadMapPort, NULL))
1018 printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
1022 void MapPort(bool /* unused fMapPort */)
1024 // Intentionally left blank.
1037 static const char *strDNSSeed[] = {
1039 "dnsseed.bluematt.me",
1040 "seed.bitcoin.sipa.be",
1041 "dnsseed.bitcoin.dashjr.org",
1044 void ThreadDNSAddressSeed(void* parg)
1046 IMPLEMENT_RANDOMIZE_STACK(ThreadDNSAddressSeed(parg));
1049 vnThreadsRunning[6]++;
1050 ThreadDNSAddressSeed2(parg);
1051 vnThreadsRunning[6]--;
1053 catch (std::exception& e) {
1054 vnThreadsRunning[6]--;
1055 PrintException(&e, "ThreadDNSAddressSeed()");
1057 vnThreadsRunning[6]--;
1058 throw; // support pthread_cancel()
1060 printf("ThreadDNSAddressSeed exiting\n");
1063 void ThreadDNSAddressSeed2(void* parg)
1065 printf("ThreadDNSAddressSeed started\n");
1070 printf("Loading addresses from DNS seeds (could take a while)\n");
1072 for (int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
1073 vector<CNetAddr> vaddr;
1074 if (LookupHost(strDNSSeed[seed_idx], vaddr))
1078 BOOST_FOREACH (CNetAddr& ip, vaddr)
1080 if (ip.IsRoutable())
1082 CAddress addr(CService(ip, GetDefaultPort()), NODE_NETWORK);
1084 AddAddress(addr, 0, &addrDB);
1088 addrDB.TxnCommit(); // Save addresses (it's ok if this fails)
1093 printf("%d addresses found from DNS seeds\n", found);
1107 unsigned int pnSeed[] =
1109 0x959bd347, 0xf8de42b2, 0x73bc0518, 0xea6edc50, 0x21b00a4d, 0xc725b43d, 0xd665464d, 0x1a2a770e,
1110 0x27c93946, 0x65b2fa46, 0xb80ae255, 0x66b3b446, 0xb1877a3e, 0x6ee89e3e, 0xc3175b40, 0x2a01a83c,
1111 0x95b1363a, 0xa079ad3d, 0xe6ca801f, 0x027f4f4a, 0x34f7f03a, 0xf790f04a, 0x16ca801f, 0x2f4d5e40,
1112 0x3a4d5e40, 0xc43a322e, 0xc8159753, 0x14d4724c, 0x7919a118, 0xe0bdb34e, 0x68a16b2e, 0xff64b44d,
1113 0x6099115b, 0x9b57b05b, 0x7bd1b4ad, 0xdf95944f, 0x29d2b73d, 0xafa8db79, 0xe247ba41, 0x24078348,
1114 0xf722f03c, 0x33567ebc, 0xace64ed4, 0x984d3932, 0xb5f34e55, 0x27b7024d, 0x94579247, 0x8894042e,
1115 0x9357d34c, 0x1063c24b, 0xcaa228b1, 0xa3c5a8b2, 0x5dc64857, 0xa2c23643, 0xa8369a54, 0x31203077,
1116 0x00707c5c, 0x09fc0b3a, 0x272e9e2e, 0xf80f043e, 0x9449ca3e, 0x5512c33e, 0xd106b555, 0xe8024157,
1117 0xe288ec29, 0xc79c5461, 0xafb63932, 0xdb02ab4b, 0x0e512777, 0x8a145a4c, 0xb201ff4f, 0x5e09314b,
1118 0xcd9bfbcd, 0x1c023765, 0x4394e75c, 0xa728bd4d, 0x65331552, 0xa98420b1, 0x89ecf559, 0x6e80801f,
1119 0xf404f118, 0xefd62b51, 0x05918346, 0x9b186d5f, 0xacabab46, 0xf912e255, 0xc188ea62, 0xcc55734e,
1120 0xc668064d, 0xd77a4558, 0x46201c55, 0xf17dfc80, 0xf7142f2e, 0x87bfb718, 0x8aa54fb2, 0xc451d518,
1121 0xc4ae8831, 0x8dd44d55, 0x5bbd206c, 0x64536b5d, 0x5c667e60, 0x3b064242, 0xfe963a42, 0xa28e6dc8,
1122 0xe8a9604a, 0xc989464e, 0xd124a659, 0x50065140, 0xa44dfe5e, 0x1079e655, 0x3fb986d5, 0x47895b18,
1123 0x7d3ce4ad, 0x4561ba50, 0x296eec62, 0x255b41ad, 0xaed35ec9, 0x55556f12, 0xc7d3154d, 0x3297b65d,
1124 0x8930121f, 0xabf42e4e, 0x4a29e044, 0x1212685d, 0x676c1e40, 0xce009744, 0x383a8948, 0xa2dbd0ad,
1125 0xecc2564d, 0x07dbc252, 0x887ee24b, 0x5171644c, 0x6bb798c1, 0x847f495d, 0x4cbb7145, 0x3bb81c32,
1126 0x45eb262e, 0xc8015a4e, 0x250a361b, 0xf694f946, 0xd64a183e, 0xd4f1dd59, 0x8f20ffd4, 0x51d9e55c,
1127 0x09521763, 0x5e02002e, 0x32c8074d, 0xe685762e, 0x8290b0bc, 0x762a922e, 0xfc5ee754, 0x83a24829,
1128 0x775b224d, 0x6295bb4d, 0x38ec0555, 0xbffbba50, 0xe5560260, 0x86b16a7c, 0xd372234e, 0x49a3c24b,
1129 0x2f6a171f, 0x4d75ed60, 0xae94115b, 0xcb543744, 0x63080c59, 0x3f9c724c, 0xc977ce18, 0x532efb18,
1130 0x69dc3b2e, 0x5f94d929, 0x1732bb4d, 0x9c814b4d, 0xe6b3762e, 0xc024f662, 0x8face35b, 0x6b5b044d,
1131 0x798c7b57, 0x79a6b44c, 0x067d3057, 0xf9e94e5f, 0x91cbe15b, 0x71405eb2, 0x2662234e, 0xcbcc4a6d,
1132 0xbf69d54b, 0xa79b4e55, 0xec6d3e51, 0x7c0b3c02, 0x60f83653, 0x24c1e15c, 0x1110b62e, 0x10350f59,
1133 0xa56f1d55, 0x3509e7a9, 0xeb128354, 0x14268e2e, 0x934e28bc, 0x8e32692e, 0x8331a21f, 0x3e633932,
1134 0xc812b12e, 0xc684bf2e, 0x80112d2e, 0xe0ddc96c, 0xc630ca4a, 0x5c09b3b2, 0x0b580518, 0xc8e9d54b,
1135 0xd169aa43, 0x17d0d655, 0x1d029963, 0x7ff87559, 0xcb701f1f, 0x6fa3e85d, 0xe45e9a54, 0xf05d1802,
1136 0x44d03b2e, 0x837b692e, 0xccd4354e, 0x3d6da13c, 0x3423084d, 0xf707c34a, 0x55f6db3a, 0xad26e442,
1137 0x6233a21f, 0x09e80e59, 0x8caeb54d, 0xbe870941, 0xb407d20e, 0x20b51018, 0x56fb152e, 0x460d2a4e,
1138 0xbb9a2946, 0x560eb12e, 0xed83dd29, 0xd6724f53, 0xa50aafb8, 0x451346d9, 0x88348e2e, 0x7312fead,
1139 0x8ecaf96f, 0x1bda4e5f, 0xf1671e40, 0x3c8c3e3b, 0x4716324d, 0xdde24ede, 0xf98cd17d, 0xa91d4644,
1140 0x28124eb2, 0x147d5129, 0xd022042e, 0x61733d3b, 0xad0d5e02, 0x8ce2932e, 0xe5c18502, 0x549c1e32,
1141 0x9685801f, 0x86e217ad, 0xd948214b, 0x4110f462, 0x3a2e894e, 0xbd35492e, 0x87e0d558, 0x64b8ef7d,
1142 0x7c3eb962, 0x72a84b3e, 0x7cd667c9, 0x28370a2e, 0x4bc60e7b, 0x6fc1ec60, 0x14a6983f, 0x86739a4b,
1143 0x46954e5f, 0x32e2e15c, 0x2e9326cf, 0xe5801c5e, 0x379607b2, 0x32151145, 0xf0e39744, 0xacb54c55,
1144 0xa37dfb60, 0x83b55cc9, 0x388f7ca5, 0x15034f5f, 0x3e94965b, 0x68e0ffad, 0x35280f59, 0x8fe190cf,
1145 0x7c6ba5b2, 0xa5e9db43, 0x4ee1fc60, 0xd9d94e5f, 0x04040677, 0x0ea9b35e, 0x5961f14f, 0x67fda063,
1146 0xa48a5a31, 0xc6524e55, 0x283d325e, 0x3f37515f, 0x96b94b3e, 0xacce620e, 0x6481cc5b, 0xa4a06d4b,
1147 0x9e95d2d9, 0xe40c03d5, 0xc2f4514b, 0xb79aad44, 0xf64be843, 0xb2064070, 0xfca00455, 0x429dfa4e,
1148 0x2323f173, 0xeda4185e, 0xabd5227d, 0x9efd4d58, 0xb1104758, 0x4811e955, 0xbd9ab355, 0xe921f44b,
1149 0x9f166dce, 0x09e279b2, 0xe0c9ac7b, 0x7901a5ad, 0xa145d4b0, 0x79104671, 0xec31e35a, 0x4fe0b555,
1150 0xc7d9cbad, 0xad057f55, 0xe94cc759, 0x7fe0b043, 0xe4529f2e, 0x0d4dd4b2, 0x9f11a54d, 0x031e2e4e,
1151 0xe6014f5f, 0x11d1ca6c, 0x26bd7f61, 0xeb86854f, 0x4d347b57, 0x116bbe2e, 0xdba7234e, 0x7bcbfd2e,
1152 0x174dd4b2, 0x6686762e, 0xb089ba50, 0xc6258246, 0x087e767b, 0xc4a8cb4a, 0x595dba50, 0x7f0ae502,
1153 0x7b1dbd5a, 0xa0603492, 0x57d1af4b, 0x9e21ffd4, 0x6393064d, 0x7407376e, 0xe484762e, 0x122a4e53,
1154 0x4a37aa43, 0x3888a6be, 0xee77864e, 0x039c8dd5, 0x688d89af, 0x0e988f62, 0x08218246, 0xfc2f8246,
1155 0xd1d97040, 0xd64cd4b2, 0x5ae4a6b8, 0x7d0de9bc, 0x8d304d61, 0x06c5c672, 0xa4c8bd4d, 0xe0fd373b,
1156 0x575ebe4d, 0x72d26277, 0x55570f55, 0x77b154d9, 0xe214293a, 0xfc740f4b, 0xfe3f6a57, 0xa9c55f02,
1157 0xae4054db, 0x2394d918, 0xb511b24a, 0xb8741ab2, 0x0758e65e, 0xc7b5795b, 0xb0a30a4c, 0xaf7f170c,
1158 0xf3b4762e, 0x8179576d, 0x738a1581, 0x4b95b64c, 0x9829b618, 0x1bea932e, 0x7bdeaa4b, 0xcb5e0281,
1159 0x65618f54, 0x0658474b, 0x27066acf, 0x40556d65, 0x7d204d53, 0xf28bc244, 0xdce23455, 0xadc0ff54,
1160 0x3863c948, 0xcee34e5f, 0xdeb85e02, 0x2ed17a61, 0x6a7b094d, 0x7f0cfc40, 0x59603f54, 0x3220afbc,
1161 0xb5dfd962, 0x125d21c0, 0x13f8d243, 0xacfefb4e, 0x86c2c147, 0x3d8bbd59, 0xbd02a21f, 0x2593042e,
1162 0xc6a17a7c, 0x28925861, 0xb487ed44, 0xb5f4fd6d, 0x90c28a45, 0x5a14f74d, 0x43d71b4c, 0x728ebb5d,
1163 0x885bf950, 0x08134dd0, 0x38ec046e, 0xc575684b, 0x50082d2e, 0xa2f47757, 0x270f86ae, 0xf3ff6462,
1164 0x10ed3f4e, 0x4b58d462, 0xe01ce23e, 0x8c5b092e, 0x63e52f4e, 0x22c1e85d, 0xa908f54e, 0x8591624f,
1165 0x2c0fb94e, 0xa280ba3c, 0xb6f41b4c, 0x24f9aa47, 0x27201647, 0x3a3ea6dc, 0xa14fc3be, 0x3c34bdd5,
1166 0x5b8d4f5b, 0xaadeaf4b, 0xc71cab50, 0x15697a4c, 0x9a1a734c, 0x2a037d81, 0x2590bd59, 0x48ec2741,
1167 0x53489c5b, 0x7f00314b, 0x2170d362, 0xf2e92542, 0x42c10b44, 0x98f0f118, 0x883a3456, 0x099a932e,
1168 0xea38f7bc, 0x644e9247, 0xbb61b62e, 0x30e0863d, 0x5f51be54, 0x207215c7, 0x5f306c45, 0xaa7f3932,
1169 0x98da7d45, 0x4e339b59, 0x2e411581, 0xa808f618, 0xad2c0c59, 0x54476741, 0x09e99fd1, 0x5db8f752,
1170 0xc16df8bd, 0x1dd4b44f, 0x106edf2e, 0x9e15c180, 0x2ad6b56f, 0x633a5332, 0xff33787c, 0x077cb545,
1171 0x6610be6d, 0x75aad2c4, 0x72fb4d5b, 0xe81e0f59, 0x576f6332, 0x47333373, 0x351ed783, 0x2d90fb50,
1172 0x8d5e0f6c, 0x5b27a552, 0xdb293ebb, 0xe55ef950, 0x4b133ad8, 0x75df975a, 0x7b6a8740, 0xa899464b,
1173 0xfab15161, 0x10f8b64d, 0xd055ea4d, 0xee8e146b, 0x4b14afb8, 0x4bc1c44a, 0x9b961dcc, 0xd111ff43,
1174 0xfca0b745, 0xc800e412, 0x0afad9d1, 0xf751c350, 0xf9f0cccf, 0xa290a545, 0x8ef13763, 0x7ec70d59,
1175 0x2b066acf, 0x65496c45, 0xade02c1b, 0xae6eb077, 0x92c1e65b, 0xc064e6a9, 0xc649e56d, 0x5287a243,
1176 0x36de4f5b, 0x5b1df6ad, 0x65c39a59, 0xdba805b2, 0x20067aa8, 0x6457e56d, 0x3cee26cf, 0xfd3ff26d,
1177 0x04f86d4a, 0x06b8e048, 0xa93bcd5c, 0x91135852, 0xbe90a643, 0x8fa0094d, 0x06d8215f, 0x2677094d,
1178 0xd735685c, 0x164a00c9, 0x5209ac5f, 0xa9564c5c, 0x3b504f5f, 0xcc826bd0, 0x4615042e, 0x5fe13b4a,
1179 0x8c81b86d, 0x879ab68c, 0x1de564b8, 0x434487d8, 0x2dcb1b63, 0x82ab524a, 0xb0676abb, 0xa13d9c62,
1180 0xdbb5b86d, 0x5b7f4b59, 0xaddfb44d, 0xad773532, 0x3997054c, 0x72cebd89, 0xb194544c, 0xc5b8046e,
1181 0x6e1adeb2, 0xaa5abb51, 0xefb54b44, 0x15efc54f, 0xe9f1bc4d, 0x5f401b6c, 0x97f018ad, 0xc82f9252,
1182 0x2cdc762e, 0x8e52e56d, 0x1827175e, 0x9b7d7d80, 0xb2ad6845, 0x51065140, 0x71180a18, 0x5b27006c,
1183 0x0621e255, 0x721cbe58, 0x670c0cb8, 0xf8bd715d, 0xe0bdc5d9, 0xed843501, 0x4b84554d, 0x7f1a18bc,
1184 0x53bcaf47, 0x5729d35f, 0xf0dda246, 0x22382bd0, 0x4d641fb0, 0x316afcde, 0x50a22f1f, 0x73608046,
1185 0xc461d84a, 0xb2dbe247,
1190 void ThreadOpenConnections(void* parg)
1192 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
1195 vnThreadsRunning[1]++;
1196 ThreadOpenConnections2(parg);
1197 vnThreadsRunning[1]--;
1199 catch (std::exception& e) {
1200 vnThreadsRunning[1]--;
1201 PrintException(&e, "ThreadOpenConnections()");
1203 vnThreadsRunning[1]--;
1204 PrintException(NULL, "ThreadOpenConnections()");
1206 printf("ThreadOpenConnections exiting\n");
1209 void ThreadOpenConnections2(void* parg)
1211 printf("ThreadOpenConnections started\n");
1213 // Connect to specific addresses
1214 if (mapArgs.count("-connect"))
1216 for (int64 nLoop = 0;; nLoop++)
1218 BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
1220 CAddress addr(CService(strAddr, GetDefaultPort(), fAllowDNS));
1222 OpenNetworkConnection(addr);
1223 for (int i = 0; i < 10 && i < nLoop; i++)
1233 // Initiate network connections
1234 int64 nStart = GetTime();
1237 // Limit outbound connections
1238 vnThreadsRunning[1]--;
1243 CRITICAL_BLOCK(cs_vNodes)
1244 BOOST_FOREACH(CNode* pnode, vNodes)
1245 if (!pnode->fInbound)
1247 int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
1248 nMaxOutboundConnections = min(nMaxOutboundConnections, (int)GetArg("-maxconnections", 125));
1249 if (nOutbound < nMaxOutboundConnections)
1255 vnThreadsRunning[1]++;
1259 bool fAddSeeds = false;
1261 CRITICAL_BLOCK(cs_mapAddresses)
1263 // Add seed nodes if IRC isn't working
1264 bool fTOR = (fUseProxy && addrProxy.GetPort() == 9050);
1265 if (mapAddresses.empty() && (GetTime() - nStart > 60 || fTOR) && !fTestNet)
1271 for (int i = 0; i < ARRAYLEN(pnSeed); i++)
1273 // It'll only connect to one or two seed nodes because once it connects,
1274 // it'll get a pile of addresses with newer timestamps.
1275 // Seed nodes are given a random 'last seen time' of between one and two
1277 const int64 nOneWeek = 7*24*60*60;
1279 memcpy(&ip, &pnSeed[i], sizeof(ip));
1280 CAddress addr(CService(ip, GetDefaultPort()));
1281 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
1287 // Choose an address to connect to based on most recently seen
1289 CAddress addrConnect;
1290 int64 nBest = std::numeric_limits<int64>::min();
1292 // Only connect to one address per a.b.?.? range.
1293 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
1294 set<vector<unsigned char> > setConnected;
1295 CRITICAL_BLOCK(cs_vNodes)
1296 BOOST_FOREACH(CNode* pnode, vNodes)
1297 setConnected.insert(pnode->addr.GetGroup());
1299 int64 nANow = GetAdjustedTime();
1301 CRITICAL_BLOCK(cs_mapAddresses)
1303 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
1305 const CAddress& addr = item.second;
1306 if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.GetGroup()))
1308 int64 nSinceLastSeen = nANow - addr.nTime;
1309 int64 nSinceLastTry = nANow - addr.nLastTry;
1311 // Randomize the order in a deterministic way, putting the standard port first
1312 int64 nRandomizer = (uint64)(nStart * 4951 + addr.nLastTry * 9567851 + addr.GetHash()) % (2 * 60 * 60);
1313 if (addr.GetPort() != GetDefaultPort())
1314 nRandomizer += 2 * 60 * 60;
1316 // Last seen Base retry frequency
1325 // 365 days 93 hours
1326 int64 nDelay = (int64)(3600.0 * sqrt(fabs((double)nSinceLastSeen) / 3600.0) + nRandomizer);
1328 // Fast reconnect for one hour after last seen
1329 if (nSinceLastSeen < 60 * 60)
1332 // Limit retry frequency
1333 if (nSinceLastTry < nDelay)
1336 // If we have IRC, we'll be notified when they first come online,
1337 // and again every 24 hours by the refresh broadcast.
1338 if (nGotIRCAddresses > 0 && vNodes.size() >= 2 && nSinceLastSeen > 24 * 60 * 60)
1341 // Only try the old stuff if we don't have enough connections
1342 if (vNodes.size() >= 8 && nSinceLastSeen > 24 * 60 * 60)
1345 // If multiple addresses are ready, prioritize by time since
1346 // last seen and time since last tried.
1347 int64 nScore = min(nSinceLastTry, (int64)24 * 60 * 60) - nSinceLastSeen - nRandomizer;
1356 if (addrConnect.IsValid())
1357 OpenNetworkConnection(addrConnect);
1361 void ThreadOpenAddedConnections(void* parg)
1363 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenAddedConnections(parg));
1366 vnThreadsRunning[7]++;
1367 ThreadOpenAddedConnections2(parg);
1368 vnThreadsRunning[7]--;
1370 catch (std::exception& e) {
1371 vnThreadsRunning[7]--;
1372 PrintException(&e, "ThreadOpenAddedConnections()");
1374 vnThreadsRunning[7]--;
1375 PrintException(NULL, "ThreadOpenAddedConnections()");
1377 printf("ThreadOpenAddedConnections exiting\n");
1380 void ThreadOpenAddedConnections2(void* parg)
1382 printf("ThreadOpenAddedConnections started\n");
1384 if (mapArgs.count("-addnode") == 0)
1387 vector<vector<CService> > vservAddressesToAdd(0);
1388 BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
1390 vector<CService> vservNode(0);
1391 if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fAllowDNS, 0))
1393 vservAddressesToAdd.push_back(vservNode);
1394 CRITICAL_BLOCK(cs_setservAddNodeAddresses)
1395 BOOST_FOREACH(CService& serv, vservNode)
1396 setservAddNodeAddresses.insert(serv);
1401 vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
1402 // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
1403 // (keeping in mind that addnode entries can have many IPs if fAllowDNS)
1404 CRITICAL_BLOCK(cs_vNodes)
1405 BOOST_FOREACH(CNode* pnode, vNodes)
1406 for (vector<vector<CService> >::iterator it = vservConnectAddresses.begin(); it != vservConnectAddresses.end(); it++)
1407 BOOST_FOREACH(CService& addrNode, *(it))
1408 if (pnode->addr == addrNode)
1410 it = vservConnectAddresses.erase(it);
1414 BOOST_FOREACH(vector<CService>& vserv, vservConnectAddresses)
1416 OpenNetworkConnection(CAddress(*(vserv.begin())));
1423 vnThreadsRunning[7]--;
1424 Sleep(120000); // Retry every 2 minutes
1425 vnThreadsRunning[7]++;
1431 bool OpenNetworkConnection(const CAddress& addrConnect)
1434 // Initiate outbound network connection
1438 if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost || !addrConnect.IsIPv4() ||
1439 FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect))
1442 vnThreadsRunning[1]--;
1443 CNode* pnode = ConnectNode(addrConnect);
1444 vnThreadsRunning[1]++;
1449 pnode->fNetworkNode = true;
1461 void ThreadMessageHandler(void* parg)
1463 IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
1466 vnThreadsRunning[2]++;
1467 ThreadMessageHandler2(parg);
1468 vnThreadsRunning[2]--;
1470 catch (std::exception& e) {
1471 vnThreadsRunning[2]--;
1472 PrintException(&e, "ThreadMessageHandler()");
1474 vnThreadsRunning[2]--;
1475 PrintException(NULL, "ThreadMessageHandler()");
1477 printf("ThreadMessageHandler exiting\n");
1480 void ThreadMessageHandler2(void* parg)
1482 printf("ThreadMessageHandler started\n");
1483 SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
1486 vector<CNode*> vNodesCopy;
1487 CRITICAL_BLOCK(cs_vNodes)
1489 vNodesCopy = vNodes;
1490 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1494 // Poll the connected nodes for messages
1495 CNode* pnodeTrickle = NULL;
1496 if (!vNodesCopy.empty())
1497 pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
1498 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1501 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
1502 ProcessMessages(pnode);
1507 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
1508 SendMessages(pnode, pnode == pnodeTrickle);
1513 CRITICAL_BLOCK(cs_vNodes)
1515 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1519 // Wait and allow messages to bunch up.
1520 // Reduce vnThreadsRunning so StopNode has permission to exit while
1521 // we're sleeping, but we must always check fShutdown after doing this.
1522 vnThreadsRunning[2]--;
1524 if (fRequestShutdown)
1526 vnThreadsRunning[2]++;
1537 bool BindListenPort(string& strError)
1541 addrLocalHost.SetPort(GetListenPort());
1544 // Initialize Windows Sockets
1546 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
1547 if (ret != NO_ERROR)
1549 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
1550 printf("%s\n", strError.c_str());
1555 // Create socket for listening for incoming connections
1556 hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
1557 if (hListenSocket == INVALID_SOCKET)
1559 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
1560 printf("%s\n", strError.c_str());
1565 // Different way of disabling SIGPIPE on BSD
1566 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
1570 // Allow binding if the port is still in TIME_WAIT state after
1571 // the program was closed and restarted. Not an issue on windows.
1572 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
1576 // Set to nonblocking, incoming connections will also inherit this
1577 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
1579 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
1582 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
1583 printf("%s\n", strError.c_str());
1587 // The sockaddr_in structure specifies the address family,
1588 // IP address, and port for the socket that is being bound
1589 struct sockaddr_in sockaddr;
1590 memset(&sockaddr, 0, sizeof(sockaddr));
1591 sockaddr.sin_family = AF_INET;
1592 sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
1593 sockaddr.sin_port = htons(GetListenPort());
1594 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
1596 int nErr = WSAGetLastError();
1597 if (nErr == WSAEADDRINUSE)
1598 strError = strprintf(_("Unable to bind to port %d on this computer. Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
1600 strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
1601 printf("%s\n", strError.c_str());
1604 printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
1606 // Listen for incoming connections
1607 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
1609 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
1610 printf("%s\n", strError.c_str());
1617 void StartNode(void* parg)
1619 if (pnodeLocalHost == NULL)
1620 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
1623 // Get local host ip
1624 char pszHostName[1000] = "";
1625 if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
1627 vector<CNetAddr> vaddr;
1628 if (LookupHost(pszHostName, vaddr))
1629 BOOST_FOREACH (const CNetAddr &addr, vaddr)
1630 if (!addr.IsLocal())
1632 addrLocalHost.SetIP(addr);
1637 // Get local host ip
1638 struct ifaddrs* myaddrs;
1639 if (getifaddrs(&myaddrs) == 0)
1641 for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
1643 if (ifa->ifa_addr == NULL) continue;
1644 if ((ifa->ifa_flags & IFF_UP) == 0) continue;
1645 if (strcmp(ifa->ifa_name, "lo") == 0) continue;
1646 if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
1648 if (ifa->ifa_addr->sa_family == AF_INET)
1650 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
1651 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
1652 printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);
1654 // Take the first IP that isn't loopback 127.x.x.x
1655 CAddress addr(CService(s4->sin_addr, GetListenPort()), nLocalServices);
1656 if (addr.IsValid() && !addr.IsLocal())
1658 addrLocalHost = addr;
1662 else if (ifa->ifa_addr->sa_family == AF_INET6)
1664 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
1665 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
1666 printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
1669 freeifaddrs(myaddrs);
1672 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1674 if (fUseProxy || mapArgs.count("-connect") || fNoListen)
1676 // Proxies can't take incoming connections
1677 addrLocalHost.SetIP(CNetAddr("0.0.0.0"));
1678 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1682 CreateThread(ThreadGetMyExternalIP, NULL);
1689 if (GetBoolArg("-nodnsseed"))
1690 printf("DNS seeding disabled\n");
1692 if (!CreateThread(ThreadDNSAddressSeed, NULL))
1693 printf("Error: CreateThread(ThreadDNSAddressSeed) failed\n");
1695 // Map ports with UPnP
1699 // Get addresses from IRC and advertise ours
1700 if (!CreateThread(ThreadIRCSeed, NULL))
1701 printf("Error: CreateThread(ThreadIRCSeed) failed\n");
1703 // Send and receive from sockets, accept connections
1704 if (!CreateThread(ThreadSocketHandler, NULL))
1705 printf("Error: CreateThread(ThreadSocketHandler) failed\n");
1707 // Initiate outbound connections from -addnode
1708 if (!CreateThread(ThreadOpenAddedConnections, NULL))
1709 printf("Error: CreateThread(ThreadOpenAddedConnections) failed\n");
1711 // Initiate outbound connections
1712 if (!CreateThread(ThreadOpenConnections, NULL))
1713 printf("Error: CreateThread(ThreadOpenConnections) failed\n");
1716 if (!CreateThread(ThreadMessageHandler, NULL))
1717 printf("Error: CreateThread(ThreadMessageHandler) failed\n");
1719 // Generate coins in the background
1720 GenerateBitcoins(fGenerateBitcoins, pwalletMain);
1725 printf("StopNode()\n");
1727 nTransactionsUpdated++;
1728 int64 nStart = GetTime();
1729 while (vnThreadsRunning[0] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0 || vnThreadsRunning[4] > 0
1730 || (fHaveUPnP && vnThreadsRunning[5] > 0) || vnThreadsRunning[6] > 0 || vnThreadsRunning[7] > 0
1733 if (GetTime() - nStart > 20)
1737 if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
1738 if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
1739 if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
1740 if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
1741 if (vnThreadsRunning[4] > 0) printf("ThreadRPCServer still running\n");
1742 if (fHaveUPnP && vnThreadsRunning[5] > 0) printf("ThreadMapPort still running\n");
1743 if (vnThreadsRunning[6] > 0) printf("ThreadDNSAddressSeed still running\n");
1744 if (vnThreadsRunning[7] > 0) printf("ThreadOpenAddedConnections still running\n");
1745 while (vnThreadsRunning[2] > 0 || vnThreadsRunning[4] > 0)
1761 BOOST_FOREACH(CNode* pnode, vNodes)
1762 if (pnode->hSocket != INVALID_SOCKET)
1763 closesocket(pnode->hSocket);
1764 if (hListenSocket != INVALID_SOCKET)
1765 if (closesocket(hListenSocket) == SOCKET_ERROR)
1766 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
1769 // Shutdown Windows Sockets
1774 instance_of_cnetcleanup;