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 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;
144 if (fNoListen||fUseProxy)
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("-irc", false))
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");
986 if (fShutdown || !fUseUPnP)
988 r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port, "TCP", 0);
989 printf("UPNP_DeletePortMapping() returned : %d\n", r);
990 freeUPNPDevlist(devlist); devlist = 0;
994 if (i % 600 == 0) // Refresh every 20 minutes
996 #ifndef UPNPDISCOVER_SUCCESS
998 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
999 port, port, lanaddr, strDesc.c_str(), "TCP", 0);
1002 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
1003 port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
1006 if(r!=UPNPCOMMAND_SUCCESS)
1007 printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
1008 port, port, lanaddr, r, strupnperror(r));
1010 printf("UPnP Port Mapping successful.\n");;
1016 printf("No valid UPnP IGDs found\n");
1017 freeUPNPDevlist(devlist); devlist = 0;
1019 FreeUPNPUrls(&urls);
1021 if (fShutdown || !fUseUPnP)
1028 void MapPort(bool fMapPort)
1030 if (fUseUPnP != fMapPort)
1032 fUseUPnP = fMapPort;
1033 WriteSetting("fUseUPnP", fUseUPnP);
1035 if (fUseUPnP && vnThreadsRunning[5] < 1)
1037 if (!CreateThread(ThreadMapPort, NULL))
1038 printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
1042 void MapPort(bool /* unused fMapPort */)
1044 // Intentionally left blank.
1057 static const char *strDNSSeed[] = {
1059 "dnsseed.bluematt.me",
1060 "seed.bitcoin.sipa.be",
1061 "dnsseed.bitcoin.dashjr.org",
1064 void ThreadDNSAddressSeed(void* parg)
1066 IMPLEMENT_RANDOMIZE_STACK(ThreadDNSAddressSeed(parg));
1069 vnThreadsRunning[6]++;
1070 ThreadDNSAddressSeed2(parg);
1071 vnThreadsRunning[6]--;
1073 catch (std::exception& e) {
1074 vnThreadsRunning[6]--;
1075 PrintException(&e, "ThreadDNSAddressSeed()");
1077 vnThreadsRunning[6]--;
1078 throw; // support pthread_cancel()
1080 printf("ThreadDNSAddressSeed exiting\n");
1083 void ThreadDNSAddressSeed2(void* parg)
1085 printf("ThreadDNSAddressSeed started\n");
1090 printf("Loading addresses from DNS seeds (could take a while)\n");
1092 for (int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
1093 vector<CNetAddr> vaddr;
1094 if (LookupHost(strDNSSeed[seed_idx], vaddr))
1098 BOOST_FOREACH (CNetAddr& ip, vaddr)
1100 if (ip.IsRoutable())
1102 CAddress addr(CService(ip, GetDefaultPort()), NODE_NETWORK);
1104 AddAddress(addr, 0, &addrDB);
1108 addrDB.TxnCommit(); // Save addresses (it's ok if this fails)
1113 printf("%d addresses found from DNS seeds\n", found);
1127 unsigned int pnSeed[] =
1129 0x959bd347, 0xf8de42b2, 0x73bc0518, 0xea6edc50, 0x21b00a4d, 0xc725b43d, 0xd665464d, 0x1a2a770e,
1130 0x27c93946, 0x65b2fa46, 0xb80ae255, 0x66b3b446, 0xb1877a3e, 0x6ee89e3e, 0xc3175b40, 0x2a01a83c,
1131 0x95b1363a, 0xa079ad3d, 0xe6ca801f, 0x027f4f4a, 0x34f7f03a, 0xf790f04a, 0x16ca801f, 0x2f4d5e40,
1132 0x3a4d5e40, 0xc43a322e, 0xc8159753, 0x14d4724c, 0x7919a118, 0xe0bdb34e, 0x68a16b2e, 0xff64b44d,
1133 0x6099115b, 0x9b57b05b, 0x7bd1b4ad, 0xdf95944f, 0x29d2b73d, 0xafa8db79, 0xe247ba41, 0x24078348,
1134 0xf722f03c, 0x33567ebc, 0xace64ed4, 0x984d3932, 0xb5f34e55, 0x27b7024d, 0x94579247, 0x8894042e,
1135 0x9357d34c, 0x1063c24b, 0xcaa228b1, 0xa3c5a8b2, 0x5dc64857, 0xa2c23643, 0xa8369a54, 0x31203077,
1136 0x00707c5c, 0x09fc0b3a, 0x272e9e2e, 0xf80f043e, 0x9449ca3e, 0x5512c33e, 0xd106b555, 0xe8024157,
1137 0xe288ec29, 0xc79c5461, 0xafb63932, 0xdb02ab4b, 0x0e512777, 0x8a145a4c, 0xb201ff4f, 0x5e09314b,
1138 0xcd9bfbcd, 0x1c023765, 0x4394e75c, 0xa728bd4d, 0x65331552, 0xa98420b1, 0x89ecf559, 0x6e80801f,
1139 0xf404f118, 0xefd62b51, 0x05918346, 0x9b186d5f, 0xacabab46, 0xf912e255, 0xc188ea62, 0xcc55734e,
1140 0xc668064d, 0xd77a4558, 0x46201c55, 0xf17dfc80, 0xf7142f2e, 0x87bfb718, 0x8aa54fb2, 0xc451d518,
1141 0xc4ae8831, 0x8dd44d55, 0x5bbd206c, 0x64536b5d, 0x5c667e60, 0x3b064242, 0xfe963a42, 0xa28e6dc8,
1142 0xe8a9604a, 0xc989464e, 0xd124a659, 0x50065140, 0xa44dfe5e, 0x1079e655, 0x3fb986d5, 0x47895b18,
1143 0x7d3ce4ad, 0x4561ba50, 0x296eec62, 0x255b41ad, 0xaed35ec9, 0x55556f12, 0xc7d3154d, 0x3297b65d,
1144 0x8930121f, 0xabf42e4e, 0x4a29e044, 0x1212685d, 0x676c1e40, 0xce009744, 0x383a8948, 0xa2dbd0ad,
1145 0xecc2564d, 0x07dbc252, 0x887ee24b, 0x5171644c, 0x6bb798c1, 0x847f495d, 0x4cbb7145, 0x3bb81c32,
1146 0x45eb262e, 0xc8015a4e, 0x250a361b, 0xf694f946, 0xd64a183e, 0xd4f1dd59, 0x8f20ffd4, 0x51d9e55c,
1147 0x09521763, 0x5e02002e, 0x32c8074d, 0xe685762e, 0x8290b0bc, 0x762a922e, 0xfc5ee754, 0x83a24829,
1148 0x775b224d, 0x6295bb4d, 0x38ec0555, 0xbffbba50, 0xe5560260, 0x86b16a7c, 0xd372234e, 0x49a3c24b,
1149 0x2f6a171f, 0x4d75ed60, 0xae94115b, 0xcb543744, 0x63080c59, 0x3f9c724c, 0xc977ce18, 0x532efb18,
1150 0x69dc3b2e, 0x5f94d929, 0x1732bb4d, 0x9c814b4d, 0xe6b3762e, 0xc024f662, 0x8face35b, 0x6b5b044d,
1151 0x798c7b57, 0x79a6b44c, 0x067d3057, 0xf9e94e5f, 0x91cbe15b, 0x71405eb2, 0x2662234e, 0xcbcc4a6d,
1152 0xbf69d54b, 0xa79b4e55, 0xec6d3e51, 0x7c0b3c02, 0x60f83653, 0x24c1e15c, 0x1110b62e, 0x10350f59,
1153 0xa56f1d55, 0x3509e7a9, 0xeb128354, 0x14268e2e, 0x934e28bc, 0x8e32692e, 0x8331a21f, 0x3e633932,
1154 0xc812b12e, 0xc684bf2e, 0x80112d2e, 0xe0ddc96c, 0xc630ca4a, 0x5c09b3b2, 0x0b580518, 0xc8e9d54b,
1155 0xd169aa43, 0x17d0d655, 0x1d029963, 0x7ff87559, 0xcb701f1f, 0x6fa3e85d, 0xe45e9a54, 0xf05d1802,
1156 0x44d03b2e, 0x837b692e, 0xccd4354e, 0x3d6da13c, 0x3423084d, 0xf707c34a, 0x55f6db3a, 0xad26e442,
1157 0x6233a21f, 0x09e80e59, 0x8caeb54d, 0xbe870941, 0xb407d20e, 0x20b51018, 0x56fb152e, 0x460d2a4e,
1158 0xbb9a2946, 0x560eb12e, 0xed83dd29, 0xd6724f53, 0xa50aafb8, 0x451346d9, 0x88348e2e, 0x7312fead,
1159 0x8ecaf96f, 0x1bda4e5f, 0xf1671e40, 0x3c8c3e3b, 0x4716324d, 0xdde24ede, 0xf98cd17d, 0xa91d4644,
1160 0x28124eb2, 0x147d5129, 0xd022042e, 0x61733d3b, 0xad0d5e02, 0x8ce2932e, 0xe5c18502, 0x549c1e32,
1161 0x9685801f, 0x86e217ad, 0xd948214b, 0x4110f462, 0x3a2e894e, 0xbd35492e, 0x87e0d558, 0x64b8ef7d,
1162 0x7c3eb962, 0x72a84b3e, 0x7cd667c9, 0x28370a2e, 0x4bc60e7b, 0x6fc1ec60, 0x14a6983f, 0x86739a4b,
1163 0x46954e5f, 0x32e2e15c, 0x2e9326cf, 0xe5801c5e, 0x379607b2, 0x32151145, 0xf0e39744, 0xacb54c55,
1164 0xa37dfb60, 0x83b55cc9, 0x388f7ca5, 0x15034f5f, 0x3e94965b, 0x68e0ffad, 0x35280f59, 0x8fe190cf,
1165 0x7c6ba5b2, 0xa5e9db43, 0x4ee1fc60, 0xd9d94e5f, 0x04040677, 0x0ea9b35e, 0x5961f14f, 0x67fda063,
1166 0xa48a5a31, 0xc6524e55, 0x283d325e, 0x3f37515f, 0x96b94b3e, 0xacce620e, 0x6481cc5b, 0xa4a06d4b,
1167 0x9e95d2d9, 0xe40c03d5, 0xc2f4514b, 0xb79aad44, 0xf64be843, 0xb2064070, 0xfca00455, 0x429dfa4e,
1168 0x2323f173, 0xeda4185e, 0xabd5227d, 0x9efd4d58, 0xb1104758, 0x4811e955, 0xbd9ab355, 0xe921f44b,
1169 0x9f166dce, 0x09e279b2, 0xe0c9ac7b, 0x7901a5ad, 0xa145d4b0, 0x79104671, 0xec31e35a, 0x4fe0b555,
1170 0xc7d9cbad, 0xad057f55, 0xe94cc759, 0x7fe0b043, 0xe4529f2e, 0x0d4dd4b2, 0x9f11a54d, 0x031e2e4e,
1171 0xe6014f5f, 0x11d1ca6c, 0x26bd7f61, 0xeb86854f, 0x4d347b57, 0x116bbe2e, 0xdba7234e, 0x7bcbfd2e,
1172 0x174dd4b2, 0x6686762e, 0xb089ba50, 0xc6258246, 0x087e767b, 0xc4a8cb4a, 0x595dba50, 0x7f0ae502,
1173 0x7b1dbd5a, 0xa0603492, 0x57d1af4b, 0x9e21ffd4, 0x6393064d, 0x7407376e, 0xe484762e, 0x122a4e53,
1174 0x4a37aa43, 0x3888a6be, 0xee77864e, 0x039c8dd5, 0x688d89af, 0x0e988f62, 0x08218246, 0xfc2f8246,
1175 0xd1d97040, 0xd64cd4b2, 0x5ae4a6b8, 0x7d0de9bc, 0x8d304d61, 0x06c5c672, 0xa4c8bd4d, 0xe0fd373b,
1176 0x575ebe4d, 0x72d26277, 0x55570f55, 0x77b154d9, 0xe214293a, 0xfc740f4b, 0xfe3f6a57, 0xa9c55f02,
1177 0xae4054db, 0x2394d918, 0xb511b24a, 0xb8741ab2, 0x0758e65e, 0xc7b5795b, 0xb0a30a4c, 0xaf7f170c,
1178 0xf3b4762e, 0x8179576d, 0x738a1581, 0x4b95b64c, 0x9829b618, 0x1bea932e, 0x7bdeaa4b, 0xcb5e0281,
1179 0x65618f54, 0x0658474b, 0x27066acf, 0x40556d65, 0x7d204d53, 0xf28bc244, 0xdce23455, 0xadc0ff54,
1180 0x3863c948, 0xcee34e5f, 0xdeb85e02, 0x2ed17a61, 0x6a7b094d, 0x7f0cfc40, 0x59603f54, 0x3220afbc,
1181 0xb5dfd962, 0x125d21c0, 0x13f8d243, 0xacfefb4e, 0x86c2c147, 0x3d8bbd59, 0xbd02a21f, 0x2593042e,
1182 0xc6a17a7c, 0x28925861, 0xb487ed44, 0xb5f4fd6d, 0x90c28a45, 0x5a14f74d, 0x43d71b4c, 0x728ebb5d,
1183 0x885bf950, 0x08134dd0, 0x38ec046e, 0xc575684b, 0x50082d2e, 0xa2f47757, 0x270f86ae, 0xf3ff6462,
1184 0x10ed3f4e, 0x4b58d462, 0xe01ce23e, 0x8c5b092e, 0x63e52f4e, 0x22c1e85d, 0xa908f54e, 0x8591624f,
1185 0x2c0fb94e, 0xa280ba3c, 0xb6f41b4c, 0x24f9aa47, 0x27201647, 0x3a3ea6dc, 0xa14fc3be, 0x3c34bdd5,
1186 0x5b8d4f5b, 0xaadeaf4b, 0xc71cab50, 0x15697a4c, 0x9a1a734c, 0x2a037d81, 0x2590bd59, 0x48ec2741,
1187 0x53489c5b, 0x7f00314b, 0x2170d362, 0xf2e92542, 0x42c10b44, 0x98f0f118, 0x883a3456, 0x099a932e,
1188 0xea38f7bc, 0x644e9247, 0xbb61b62e, 0x30e0863d, 0x5f51be54, 0x207215c7, 0x5f306c45, 0xaa7f3932,
1189 0x98da7d45, 0x4e339b59, 0x2e411581, 0xa808f618, 0xad2c0c59, 0x54476741, 0x09e99fd1, 0x5db8f752,
1190 0xc16df8bd, 0x1dd4b44f, 0x106edf2e, 0x9e15c180, 0x2ad6b56f, 0x633a5332, 0xff33787c, 0x077cb545,
1191 0x6610be6d, 0x75aad2c4, 0x72fb4d5b, 0xe81e0f59, 0x576f6332, 0x47333373, 0x351ed783, 0x2d90fb50,
1192 0x8d5e0f6c, 0x5b27a552, 0xdb293ebb, 0xe55ef950, 0x4b133ad8, 0x75df975a, 0x7b6a8740, 0xa899464b,
1193 0xfab15161, 0x10f8b64d, 0xd055ea4d, 0xee8e146b, 0x4b14afb8, 0x4bc1c44a, 0x9b961dcc, 0xd111ff43,
1194 0xfca0b745, 0xc800e412, 0x0afad9d1, 0xf751c350, 0xf9f0cccf, 0xa290a545, 0x8ef13763, 0x7ec70d59,
1195 0x2b066acf, 0x65496c45, 0xade02c1b, 0xae6eb077, 0x92c1e65b, 0xc064e6a9, 0xc649e56d, 0x5287a243,
1196 0x36de4f5b, 0x5b1df6ad, 0x65c39a59, 0xdba805b2, 0x20067aa8, 0x6457e56d, 0x3cee26cf, 0xfd3ff26d,
1197 0x04f86d4a, 0x06b8e048, 0xa93bcd5c, 0x91135852, 0xbe90a643, 0x8fa0094d, 0x06d8215f, 0x2677094d,
1198 0xd735685c, 0x164a00c9, 0x5209ac5f, 0xa9564c5c, 0x3b504f5f, 0xcc826bd0, 0x4615042e, 0x5fe13b4a,
1199 0x8c81b86d, 0x879ab68c, 0x1de564b8, 0x434487d8, 0x2dcb1b63, 0x82ab524a, 0xb0676abb, 0xa13d9c62,
1200 0xdbb5b86d, 0x5b7f4b59, 0xaddfb44d, 0xad773532, 0x3997054c, 0x72cebd89, 0xb194544c, 0xc5b8046e,
1201 0x6e1adeb2, 0xaa5abb51, 0xefb54b44, 0x15efc54f, 0xe9f1bc4d, 0x5f401b6c, 0x97f018ad, 0xc82f9252,
1202 0x2cdc762e, 0x8e52e56d, 0x1827175e, 0x9b7d7d80, 0xb2ad6845, 0x51065140, 0x71180a18, 0x5b27006c,
1203 0x0621e255, 0x721cbe58, 0x670c0cb8, 0xf8bd715d, 0xe0bdc5d9, 0xed843501, 0x4b84554d, 0x7f1a18bc,
1204 0x53bcaf47, 0x5729d35f, 0xf0dda246, 0x22382bd0, 0x4d641fb0, 0x316afcde, 0x50a22f1f, 0x73608046,
1205 0xc461d84a, 0xb2dbe247,
1210 void ThreadOpenConnections(void* parg)
1212 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
1215 vnThreadsRunning[1]++;
1216 ThreadOpenConnections2(parg);
1217 vnThreadsRunning[1]--;
1219 catch (std::exception& e) {
1220 vnThreadsRunning[1]--;
1221 PrintException(&e, "ThreadOpenConnections()");
1223 vnThreadsRunning[1]--;
1224 PrintException(NULL, "ThreadOpenConnections()");
1226 printf("ThreadOpenConnections exiting\n");
1229 void ThreadOpenConnections2(void* parg)
1231 printf("ThreadOpenConnections started\n");
1233 // Connect to specific addresses
1234 if (mapArgs.count("-connect"))
1236 for (int64 nLoop = 0;; nLoop++)
1238 BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
1240 CAddress addr(CService(strAddr, GetDefaultPort(), fAllowDNS));
1242 OpenNetworkConnection(addr);
1243 for (int i = 0; i < 10 && i < nLoop; i++)
1253 // Initiate network connections
1254 int64 nStart = GetTime();
1257 // Limit outbound connections
1258 vnThreadsRunning[1]--;
1263 CRITICAL_BLOCK(cs_vNodes)
1264 BOOST_FOREACH(CNode* pnode, vNodes)
1265 if (!pnode->fInbound)
1267 int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
1268 nMaxOutboundConnections = min(nMaxOutboundConnections, (int)GetArg("-maxconnections", 125));
1269 if (nOutbound < nMaxOutboundConnections)
1275 vnThreadsRunning[1]++;
1279 bool fAddSeeds = false;
1281 CRITICAL_BLOCK(cs_mapAddresses)
1283 // Add seed nodes if IRC isn't working
1284 bool fTOR = (fUseProxy && addrProxy.GetPort() == 9050);
1285 if (mapAddresses.empty() && (GetTime() - nStart > 60 || fTOR) && !fTestNet)
1291 for (int i = 0; i < ARRAYLEN(pnSeed); i++)
1293 // It'll only connect to one or two seed nodes because once it connects,
1294 // it'll get a pile of addresses with newer timestamps.
1295 // Seed nodes are given a random 'last seen time' of between one and two
1297 const int64 nOneWeek = 7*24*60*60;
1299 memcpy(&ip, &pnSeed[i], sizeof(ip));
1300 CAddress addr(CService(ip, GetDefaultPort()));
1301 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
1307 // Choose an address to connect to based on most recently seen
1309 CAddress addrConnect;
1310 int64 nBest = std::numeric_limits<int64>::min();
1312 // Only connect to one address per a.b.?.? range.
1313 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
1314 set<vector<unsigned char> > setConnected;
1315 CRITICAL_BLOCK(cs_vNodes)
1316 BOOST_FOREACH(CNode* pnode, vNodes)
1317 setConnected.insert(pnode->addr.GetGroup());
1319 int64 nANow = GetAdjustedTime();
1321 CRITICAL_BLOCK(cs_mapAddresses)
1323 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
1325 const CAddress& addr = item.second;
1326 if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.GetGroup()))
1328 int64 nSinceLastSeen = nANow - addr.nTime;
1329 int64 nSinceLastTry = nANow - addr.nLastTry;
1331 // Randomize the order in a deterministic way, putting the standard port first
1332 int64 nRandomizer = (uint64)(nStart * 4951 + addr.nLastTry * 9567851 + addr.GetHash()) % (2 * 60 * 60);
1333 if (addr.GetPort() != GetDefaultPort())
1334 nRandomizer += 2 * 60 * 60;
1336 // Last seen Base retry frequency
1345 // 365 days 93 hours
1346 int64 nDelay = (int64)(3600.0 * sqrt(fabs((double)nSinceLastSeen) / 3600.0) + nRandomizer);
1348 // Fast reconnect for one hour after last seen
1349 if (nSinceLastSeen < 60 * 60)
1352 // Limit retry frequency
1353 if (nSinceLastTry < nDelay)
1356 // If we have IRC, we'll be notified when they first come online,
1357 // and again every 24 hours by the refresh broadcast.
1358 if (nGotIRCAddresses > 0 && vNodes.size() >= 2 && nSinceLastSeen > 24 * 60 * 60)
1361 // Only try the old stuff if we don't have enough connections
1362 if (vNodes.size() >= 8 && nSinceLastSeen > 24 * 60 * 60)
1365 // If multiple addresses are ready, prioritize by time since
1366 // last seen and time since last tried.
1367 int64 nScore = min(nSinceLastTry, (int64)24 * 60 * 60) - nSinceLastSeen - nRandomizer;
1376 if (addrConnect.IsValid())
1377 OpenNetworkConnection(addrConnect);
1381 void ThreadOpenAddedConnections(void* parg)
1383 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenAddedConnections(parg));
1386 vnThreadsRunning[7]++;
1387 ThreadOpenAddedConnections2(parg);
1388 vnThreadsRunning[7]--;
1390 catch (std::exception& e) {
1391 vnThreadsRunning[7]--;
1392 PrintException(&e, "ThreadOpenAddedConnections()");
1394 vnThreadsRunning[7]--;
1395 PrintException(NULL, "ThreadOpenAddedConnections()");
1397 printf("ThreadOpenAddedConnections exiting\n");
1400 void ThreadOpenAddedConnections2(void* parg)
1402 printf("ThreadOpenAddedConnections started\n");
1404 if (mapArgs.count("-addnode") == 0)
1407 vector<vector<CService> > vservAddressesToAdd(0);
1408 BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
1410 vector<CService> vservNode(0);
1411 if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fAllowDNS, 0))
1413 vservAddressesToAdd.push_back(vservNode);
1414 CRITICAL_BLOCK(cs_setservAddNodeAddresses)
1415 BOOST_FOREACH(CService& serv, vservNode)
1416 setservAddNodeAddresses.insert(serv);
1421 vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
1422 // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
1423 // (keeping in mind that addnode entries can have many IPs if fAllowDNS)
1424 CRITICAL_BLOCK(cs_vNodes)
1425 BOOST_FOREACH(CNode* pnode, vNodes)
1426 for (vector<vector<CService> >::iterator it = vservConnectAddresses.begin(); it != vservConnectAddresses.end(); it++)
1427 BOOST_FOREACH(CService& addrNode, *(it))
1428 if (pnode->addr == addrNode)
1430 it = vservConnectAddresses.erase(it);
1434 BOOST_FOREACH(vector<CService>& vserv, vservConnectAddresses)
1436 OpenNetworkConnection(CAddress(*(vserv.begin())));
1443 vnThreadsRunning[7]--;
1444 Sleep(120000); // Retry every 2 minutes
1445 vnThreadsRunning[7]++;
1451 bool OpenNetworkConnection(const CAddress& addrConnect)
1454 // Initiate outbound network connection
1458 if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost || !addrConnect.IsIPv4() ||
1459 FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect))
1462 vnThreadsRunning[1]--;
1463 CNode* pnode = ConnectNode(addrConnect);
1464 vnThreadsRunning[1]++;
1469 pnode->fNetworkNode = true;
1481 void ThreadMessageHandler(void* parg)
1483 IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
1486 vnThreadsRunning[2]++;
1487 ThreadMessageHandler2(parg);
1488 vnThreadsRunning[2]--;
1490 catch (std::exception& e) {
1491 vnThreadsRunning[2]--;
1492 PrintException(&e, "ThreadMessageHandler()");
1494 vnThreadsRunning[2]--;
1495 PrintException(NULL, "ThreadMessageHandler()");
1497 printf("ThreadMessageHandler exiting\n");
1500 void ThreadMessageHandler2(void* parg)
1502 printf("ThreadMessageHandler started\n");
1503 SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
1506 vector<CNode*> vNodesCopy;
1507 CRITICAL_BLOCK(cs_vNodes)
1509 vNodesCopy = vNodes;
1510 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1514 // Poll the connected nodes for messages
1515 CNode* pnodeTrickle = NULL;
1516 if (!vNodesCopy.empty())
1517 pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
1518 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1521 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
1522 ProcessMessages(pnode);
1527 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
1528 SendMessages(pnode, pnode == pnodeTrickle);
1533 CRITICAL_BLOCK(cs_vNodes)
1535 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1539 // Wait and allow messages to bunch up.
1540 // Reduce vnThreadsRunning so StopNode has permission to exit while
1541 // we're sleeping, but we must always check fShutdown after doing this.
1542 vnThreadsRunning[2]--;
1544 if (fRequestShutdown)
1546 vnThreadsRunning[2]++;
1557 bool BindListenPort(string& strError)
1561 addrLocalHost.SetPort(GetListenPort());
1564 // Initialize Windows Sockets
1566 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
1567 if (ret != NO_ERROR)
1569 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
1570 printf("%s\n", strError.c_str());
1575 // Create socket for listening for incoming connections
1576 hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
1577 if (hListenSocket == INVALID_SOCKET)
1579 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
1580 printf("%s\n", strError.c_str());
1585 // Different way of disabling SIGPIPE on BSD
1586 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
1590 // Allow binding if the port is still in TIME_WAIT state after
1591 // the program was closed and restarted. Not an issue on windows.
1592 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
1596 // Set to nonblocking, incoming connections will also inherit this
1597 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
1599 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
1602 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
1603 printf("%s\n", strError.c_str());
1607 // The sockaddr_in structure specifies the address family,
1608 // IP address, and port for the socket that is being bound
1609 struct sockaddr_in sockaddr;
1610 memset(&sockaddr, 0, sizeof(sockaddr));
1611 sockaddr.sin_family = AF_INET;
1612 sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
1613 sockaddr.sin_port = htons(GetListenPort());
1614 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
1616 int nErr = WSAGetLastError();
1617 if (nErr == WSAEADDRINUSE)
1618 strError = strprintf(_("Unable to bind to port %d on this computer. Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
1620 strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
1621 printf("%s\n", strError.c_str());
1624 printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
1626 // Listen for incoming connections
1627 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
1629 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
1630 printf("%s\n", strError.c_str());
1637 void StartNode(void* parg)
1639 if (pnodeLocalHost == NULL)
1640 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
1643 // Get local host ip
1644 char pszHostName[1000] = "";
1645 if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
1647 vector<CNetAddr> vaddr;
1648 if (LookupHost(pszHostName, vaddr))
1649 BOOST_FOREACH (const CNetAddr &addr, vaddr)
1650 if (!addr.IsLocal())
1652 addrLocalHost.SetIP(addr);
1657 // Get local host ip
1658 struct ifaddrs* myaddrs;
1659 if (getifaddrs(&myaddrs) == 0)
1661 for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
1663 if (ifa->ifa_addr == NULL) continue;
1664 if ((ifa->ifa_flags & IFF_UP) == 0) continue;
1665 if (strcmp(ifa->ifa_name, "lo") == 0) continue;
1666 if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
1668 if (ifa->ifa_addr->sa_family == AF_INET)
1670 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
1671 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
1672 printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);
1674 // Take the first IP that isn't loopback 127.x.x.x
1675 CAddress addr(CService(s4->sin_addr, GetListenPort()), nLocalServices);
1676 if (addr.IsValid() && !addr.IsLocal())
1678 addrLocalHost = addr;
1682 else if (ifa->ifa_addr->sa_family == AF_INET6)
1684 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
1685 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
1686 printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
1689 freeifaddrs(myaddrs);
1692 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1694 if (fUseProxy || mapArgs.count("-connect") || fNoListen)
1696 // Proxies can't take incoming connections
1697 addrLocalHost.SetIP(CNetAddr("0.0.0.0"));
1698 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1702 CreateThread(ThreadGetMyExternalIP, NULL);
1709 if (!GetBoolArg("-dnsseed", true))
1710 printf("DNS seeding disabled\n");
1712 if (!CreateThread(ThreadDNSAddressSeed, NULL))
1713 printf("Error: CreateThread(ThreadDNSAddressSeed) failed\n");
1715 // Map ports with UPnP
1719 // Get addresses from IRC and advertise ours
1720 if (!CreateThread(ThreadIRCSeed, NULL))
1721 printf("Error: CreateThread(ThreadIRCSeed) failed\n");
1723 // Send and receive from sockets, accept connections
1724 if (!CreateThread(ThreadSocketHandler, NULL))
1725 printf("Error: CreateThread(ThreadSocketHandler) failed\n");
1727 // Initiate outbound connections from -addnode
1728 if (!CreateThread(ThreadOpenAddedConnections, NULL))
1729 printf("Error: CreateThread(ThreadOpenAddedConnections) failed\n");
1731 // Initiate outbound connections
1732 if (!CreateThread(ThreadOpenConnections, NULL))
1733 printf("Error: CreateThread(ThreadOpenConnections) failed\n");
1736 if (!CreateThread(ThreadMessageHandler, NULL))
1737 printf("Error: CreateThread(ThreadMessageHandler) failed\n");
1739 // Generate coins in the background
1740 GenerateBitcoins(fGenerateBitcoins, pwalletMain);
1745 printf("StopNode()\n");
1747 nTransactionsUpdated++;
1748 int64 nStart = GetTime();
1749 while (vnThreadsRunning[0] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0 || vnThreadsRunning[4] > 0
1750 || (fHaveUPnP && vnThreadsRunning[5] > 0) || vnThreadsRunning[6] > 0 || vnThreadsRunning[7] > 0
1753 if (GetTime() - nStart > 20)
1757 if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
1758 if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
1759 if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
1760 if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
1761 if (vnThreadsRunning[4] > 0) printf("ThreadRPCServer still running\n");
1762 if (fHaveUPnP && vnThreadsRunning[5] > 0) printf("ThreadMapPort still running\n");
1763 if (vnThreadsRunning[6] > 0) printf("ThreadDNSAddressSeed still running\n");
1764 if (vnThreadsRunning[7] > 0) printf("ThreadOpenAddedConnections still running\n");
1765 while (vnThreadsRunning[2] > 0 || vnThreadsRunning[4] > 0)
1781 BOOST_FOREACH(CNode* pnode, vNodes)
1782 if (pnode->hSocket != INVALID_SOCKET)
1783 closesocket(pnode->hSocket);
1784 if (hListenSocket != INVALID_SOCKET)
1785 if (closesocket(hListenSocket) == SOCKET_ERROR)
1786 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
1789 // Shutdown Windows Sockets
1794 instance_of_cnetcleanup;