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 0x6884ac63, 0x3ffecead, 0x2919b953, 0x0942fe50, 0x7a1d922e, 0xcdd6734a, 0x953a5bb6, 0x2c46922e,
1110 0xe2a5f143, 0xaa39103a, 0xa06afa5c, 0x135ffd59, 0xe8e82863, 0xf61ef029, 0xf75f042e, 0x2b363532,
1111 0x29b2df42, 0x16b1f64e, 0xd46e281b, 0x5280bf58, 0x60372229, 0x1be58e4f, 0xa8496f45, 0x1fb1a057,
1112 0x756b3844, 0x3bb79445, 0x0b375518, 0xcccb0102, 0xb682bf2e, 0x46431c02, 0x3a81073a, 0xa3771f1f,
1113 0x213a121f, 0x85dc2c1b, 0x56b4323b, 0xb34e8945, 0x3c40b33d, 0xfa276418, 0x1f818d29, 0xebe1e344,
1114 0xf6160a18, 0xf4fa384a, 0x34b09558, 0xb882b543, 0xe3ce2253, 0x6abf56d8, 0xe91b1155, 0x688ee6ad,
1115 0x2efc6058, 0x4792cd47, 0x0c32f757, 0x4c813a46, 0x8c93644a, 0x37507444, 0x813ad218, 0xdac06d4a,
1116 0xe4c63e4b, 0x21a1ea3c, 0x8d88556f, 0x30e9173a, 0x041f681b, 0xdc77ba50, 0xc0072753, 0xceddd44f,
1117 0x052d1743, 0xe3c77a4a, 0x13981c3a, 0x5685d918, 0x3c0e4e70, 0x3e56fb54, 0xb676ae0c, 0xac93c859,
1118 0x22279f43, 0x975a4542, 0xe527f071, 0xea162f2e, 0x3c65a32e, 0x5be5713b, 0x961ec418, 0xb202922e,
1119 0x5ef7be50, 0xce49f53e, 0x05803b47, 0x8463b055, 0x78576153, 0x3ec2ae3a, 0x4bbd7118, 0xafcee043,
1120 0x56a3e8ba, 0x6174de4d, 0x8d01ba4b, 0xc9af564e, 0xdbc9c547, 0xa627474d, 0xdada9244, 0xd3b3083a,
1121 0x523e071f, 0xd6b96f18, 0xbd527c46, 0xdf2bbb4d, 0xd37b4a4b, 0x3a6a2158, 0xc064b055, 0x18a8e055,
1122 0xec4dae3b, 0x0540416c, 0x475b4fbe, 0x064803b2, 0x48e9f062, 0x2898524b, 0xd315ff43, 0xf786d247,
1123 0xc7ea2f3e, 0xc087f043, 0xc163354b, 0x8250284d, 0xed300029, 0xbf36e05c, 0x8eb3ae4c, 0xe7aa623e,
1124 0x7ced0274, 0xdd362c1b, 0x362b995a, 0xca26b629, 0x3fc41618, 0xb97b364e, 0xa05b8729, 0x0f5e3c43,
1125 0xdf942618, 0x6aeb9b5b, 0xbf04762e, 0xfaaeb118, 0x87579958, 0x76520044, 0xc2660c5b, 0x628b201b,
1126 0xf193932e, 0x1c0ad045, 0xff908346, 0x8da9d4da, 0xed201c1f, 0xa47a2b1b, 0x330007d4, 0x8ba1ed47,
1127 0xb2f02d44, 0x7db62c1b, 0x781c454b, 0xc0300029, 0xb7062a45, 0x88b52e3a, 0x78dd6b63, 0x1cb9b718,
1128 0x5d358e47, 0x59912c3b, 0x79607544, 0x5197f759, 0xc023be48, 0xd1013743, 0x0f354057, 0x8e3aac3b,
1129 0x4114693e, 0x22316318, 0xe27dda50, 0x878eac3b, 0x4948a21f, 0x5db7f24c, 0x8ccb6157, 0x26a5de18,
1130 0x0a11bd43, 0x27bb1e41, 0x60a7a951, 0x3e16b35e, 0x07888b53, 0x5648a853, 0x0149fe50, 0xd070a34f,
1131 0x6454c96d, 0xd6e54758, 0xa96dc152, 0x65447861, 0xf6bdf95e, 0x10400202, 0x2c29d483, 0x18174732,
1132 0x1d840618, 0x12e61818, 0x089d3f3c, 0x917e931f, 0xd1b0c90e, 0x25bd3c42, 0xeb05775b, 0x7d550c59,
1133 0x6cfacb01, 0xe4224444, 0xa41dd943, 0x0f5aa643, 0x5e33731b, 0x81036d50, 0x6f46a0d1, 0x7731be43,
1134 0x14840e18, 0xf1e8d059, 0x661d2b1f, 0x40a3201b, 0x9407b843, 0xedf0254d, 0x7bd1a5bc, 0x073dbe51,
1135 0xe864a97b, 0x2efd947b, 0xb9ca0e45, 0x4e2113ad, 0xcc305731, 0xd39ca63c, 0x733df918, 0xda172b1f,
1136 0xaa03b34d, 0x7230fd4d, 0xf1ce6e3a, 0x2e9fab43, 0xa4010750, 0xa928bd18, 0x6809be42, 0xb19de348,
1137 0xff956270, 0x0d795f51, 0xd2dec247, 0x6df5774b, 0xbac11f79, 0xdfb05c75, 0x887683d8, 0xa1e83632,
1138 0x2c0f7671, 0x28bcb65d, 0xac2a7545, 0x3eebfc60, 0x304ad7c4, 0xa215a462, 0xc86f0f58, 0xcfb92ebe,
1139 0x5e23ed82, 0xf506184b, 0xec0f19b7, 0x060c59ad, 0x86ee3174, 0x85380774, 0xa199a562, 0x02b507ae,
1140 0x33eb2163, 0xf2112b1f, 0xb702ba50, 0x131b9618, 0x90ccd04a, 0x08f3273b, 0xecb61718, 0x64b8b44d,
1141 0x182bf4dc, 0xc7b68286, 0x6e318d5f, 0xfdb03654, 0xb3272e54, 0xe014ad4b, 0x274e4a31, 0x7806375c,
1142 0xbc34a748, 0x1b5ad94a, 0x6b54d10e, 0x73e2ae6e, 0x5529d483, 0x8455a76d, 0x99c13f47, 0x1d811741,
1143 0xa9782a78, 0x0b00464d, 0x7266ea50, 0x532dab46, 0x33e1413e, 0x780d0c18, 0x0fb0854e, 0x03370155,
1144 0x2693042e, 0xfa3d824a, 0x2bb1681b, 0x37ea2a18, 0x7fb8414b, 0x32e0713b, 0xacf38d3f, 0xa282716f,
1145 0xb1a09d7b, 0xa04b764b, 0x83c94d18, 0x05ee4c6d, 0x0e795f51, 0x46984352, 0xf80fc247, 0x3fccb946,
1146 0xd7ae244b, 0x0a8e0a4c, 0x57b141bc, 0x3647bed1, 0x1431b052, 0x803a8bbb, 0xfc69056b, 0xf5991862,
1147 0x14963b2e, 0xd35d5dda, 0xc6c73574, 0xc8f1405b, 0x0ca4224d, 0xecd36071, 0xa9461754, 0xe7a0ed72,
1148 0x559e8346, 0x1c9beec1, 0xc786ea4a, 0x9561b44d, 0x9788074d, 0x1a69934f, 0x23c5614c, 0x07c79d4b,
1149 0xc7ee52db, 0xc72df351, 0xcb135e44, 0xa0988346, 0xc211fc4c, 0x87dec34b, 0x1381074d, 0x04a65cb7,
1150 0x4409083a, 0x4a407a4c, 0x92b8d37d, 0xacf50b4d, 0xa58aa5bc, 0x448f801f, 0x9c83762e, 0x6fd5734a,
1151 0xfe2d454b, 0x84144c55, 0x05190e4c, 0xb2151448, 0x63867a3e, 0x16099018, 0x9c010d3c, 0x962d8f3d,
1152 0xd51ee453, 0x9d86801f, 0x68e87b47, 0x6bf7bb73, 0x5fc7910e, 0x10d90118, 0x3db04442, 0x729d3e4b,
1153 0xc397d842, 0x57bb15ad, 0x72f31f4e, 0xc9380043, 0x2bb24e18, 0xd9b8ab50, 0xb786801f, 0xf4dc4847,
1154 0x85f4bb51, 0x4435995b, 0x5ba07e40, 0x2c57392e, 0x3628124b, 0x9839b64b, 0x6fe8b24d, 0xaddce847,
1155 0x75260e45, 0x0c572a43, 0xfea21902, 0xb9f9742e, 0x5a70d443, 0x8fc5910e, 0x868d4744, 0x56245e02,
1156 0xd7eb5f02, 0x35c12c1b, 0x4373034b, 0x8786554c, 0xa6facf18, 0x4b11a31f, 0x3570664e, 0x5a64bc42,
1157 0x0b03983f, 0x8f457e4c, 0x0fd874c3, 0xb6cf31b2, 0x2bbc2d4e, 0x146ca5b2, 0x9d00b150, 0x048a4153,
1158 0xca4dcd43, 0xc1607cca, 0x8234cf57, 0x9c7daead, 0x3dc07658, 0xea5c6e4c, 0xf1a0084e, 0x16d2ee53,
1159 0x1b849418, 0xfe913a47, 0x1e988f62, 0x208b644c, 0xc55ee980, 0xbdbce747, 0xf59a384e, 0x0f56091b,
1160 0x7417b745, 0x0c37344e, 0x2c62ab47, 0xf8533a4d, 0x8030084d, 0x76b93c4b, 0xda6ea0ad, 0x3c54f618,
1161 0x63b0de1f, 0x7370d858, 0x1a70bb4c, 0xdda63b2e, 0x60b2ba50, 0x1ba7d048, 0xbe1b2c1b, 0xabea5747,
1162 0x29ad2e4d, 0xe8cd7642, 0x66c80e18, 0x138bf34a, 0xc6145e44, 0x2586794c, 0x07bc5478, 0x0da0b14d,
1163 0x8f95354e, 0x9eb11c62, 0xa1545e46, 0x2e7a2602, 0x408c9c3d, 0x59065d55, 0xf51d1a4c, 0x3bbc6a4e,
1164 0xc71b2a2e, 0xcdaaa545, 0x17d659d0, 0x5202e7ad, 0xf1b68445, 0x93375961, 0xbd88a043, 0x066ad655,
1165 0x890f6318, 0x7b7dca47, 0x99bdd662, 0x3bb4fc53, 0x1231efdc, 0xc0a99444, 0x96bbea47, 0x61ed8748,
1166 0x27dfa73b, 0x8d4d1754, 0x3460042e, 0x551f0c4c, 0x8d0e0718, 0x162ddc53, 0x53231718, 0x1ecd65d0,
1167 0x944d28bc, 0x3b79d058, 0xaff97fbc, 0x4860006c, 0xc101c90e, 0xace41743, 0xa5975d4c, 0x5cc2703e,
1168 0xb55a4450, 0x02d18840, 0xee2765ae, 0xd6012fd5, 0x24c94d7d, 0x8c6eec47, 0x7520ba5d, 0x9e15e460,
1169 0x8510b04c, 0x75ec3847, 0x1dfa6661, 0xe172b3ad, 0x5744c90e, 0x52a0a152, 0x8d6fad18, 0x67b74b6d,
1170 0x93a089b2, 0x0f3ac5d5, 0xe5de1855, 0x43d25747, 0x4bad804a, 0x55b408d8, 0x60a36441, 0xf553e860,
1171 0xdb2fa2c8, 0x03152b32, 0xdd27a7d5, 0x3116a8b8, 0x0a1d708c, 0xeee2f13c, 0x6acf436f, 0xce6eb4ca,
1172 0x101cd3d9, 0x1c48a6b8, 0xe57d6f44, 0x93dcf562,
1177 void ThreadOpenConnections(void* parg)
1179 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
1182 vnThreadsRunning[1]++;
1183 ThreadOpenConnections2(parg);
1184 vnThreadsRunning[1]--;
1186 catch (std::exception& e) {
1187 vnThreadsRunning[1]--;
1188 PrintException(&e, "ThreadOpenConnections()");
1190 vnThreadsRunning[1]--;
1191 PrintException(NULL, "ThreadOpenConnections()");
1193 printf("ThreadOpenConnections exiting\n");
1196 void ThreadOpenConnections2(void* parg)
1198 printf("ThreadOpenConnections started\n");
1200 // Connect to specific addresses
1201 if (mapArgs.count("-connect"))
1203 for (int64 nLoop = 0;; nLoop++)
1205 BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
1207 CAddress addr(CService(strAddr, GetDefaultPort(), fAllowDNS));
1209 OpenNetworkConnection(addr);
1210 for (int i = 0; i < 10 && i < nLoop; i++)
1220 // Initiate network connections
1221 int64 nStart = GetTime();
1224 // Limit outbound connections
1225 vnThreadsRunning[1]--;
1230 CRITICAL_BLOCK(cs_vNodes)
1231 BOOST_FOREACH(CNode* pnode, vNodes)
1232 if (!pnode->fInbound)
1234 int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
1235 nMaxOutboundConnections = min(nMaxOutboundConnections, (int)GetArg("-maxconnections", 125));
1236 if (nOutbound < nMaxOutboundConnections)
1242 vnThreadsRunning[1]++;
1246 bool fAddSeeds = false;
1248 CRITICAL_BLOCK(cs_mapAddresses)
1250 // Add seed nodes if IRC isn't working
1251 bool fTOR = (fUseProxy && addrProxy.GetPort() == 9050);
1252 if (mapAddresses.empty() && (GetTime() - nStart > 60 || fTOR) && !fTestNet)
1258 for (int i = 0; i < ARRAYLEN(pnSeed); i++)
1260 // It'll only connect to one or two seed nodes because once it connects,
1261 // it'll get a pile of addresses with newer timestamps.
1262 // Seed nodes are given a random 'last seen time' of between one and two
1264 const int64 nOneWeek = 7*24*60*60;
1266 memcpy(&ip, &pnSeed[i], sizeof(ip));
1267 CAddress addr(CService(ip, GetDefaultPort()));
1268 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
1274 // Choose an address to connect to based on most recently seen
1276 CAddress addrConnect;
1277 int64 nBest = std::numeric_limits<int64>::min();
1279 // Only connect to one address per a.b.?.? range.
1280 // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
1281 set<vector<unsigned char> > setConnected;
1282 CRITICAL_BLOCK(cs_vNodes)
1283 BOOST_FOREACH(CNode* pnode, vNodes)
1284 setConnected.insert(pnode->addr.GetGroup());
1286 int64 nANow = GetAdjustedTime();
1288 CRITICAL_BLOCK(cs_mapAddresses)
1290 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
1292 const CAddress& addr = item.second;
1293 if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.GetGroup()))
1295 int64 nSinceLastSeen = nANow - addr.nTime;
1296 int64 nSinceLastTry = nANow - addr.nLastTry;
1298 // Randomize the order in a deterministic way, putting the standard port first
1299 int64 nRandomizer = (uint64)(nStart * 4951 + addr.nLastTry * 9567851 + addr.GetHash()) % (2 * 60 * 60);
1300 if (addr.GetPort() != GetDefaultPort())
1301 nRandomizer += 2 * 60 * 60;
1303 // Last seen Base retry frequency
1312 // 365 days 93 hours
1313 int64 nDelay = (int64)(3600.0 * sqrt(fabs((double)nSinceLastSeen) / 3600.0) + nRandomizer);
1315 // Fast reconnect for one hour after last seen
1316 if (nSinceLastSeen < 60 * 60)
1319 // Limit retry frequency
1320 if (nSinceLastTry < nDelay)
1323 // If we have IRC, we'll be notified when they first come online,
1324 // and again every 24 hours by the refresh broadcast.
1325 if (nGotIRCAddresses > 0 && vNodes.size() >= 2 && nSinceLastSeen > 24 * 60 * 60)
1328 // Only try the old stuff if we don't have enough connections
1329 if (vNodes.size() >= 8 && nSinceLastSeen > 24 * 60 * 60)
1332 // If multiple addresses are ready, prioritize by time since
1333 // last seen and time since last tried.
1334 int64 nScore = min(nSinceLastTry, (int64)24 * 60 * 60) - nSinceLastSeen - nRandomizer;
1343 if (addrConnect.IsValid())
1344 OpenNetworkConnection(addrConnect);
1348 void ThreadOpenAddedConnections(void* parg)
1350 IMPLEMENT_RANDOMIZE_STACK(ThreadOpenAddedConnections(parg));
1353 vnThreadsRunning[7]++;
1354 ThreadOpenAddedConnections2(parg);
1355 vnThreadsRunning[7]--;
1357 catch (std::exception& e) {
1358 vnThreadsRunning[7]--;
1359 PrintException(&e, "ThreadOpenAddedConnections()");
1361 vnThreadsRunning[7]--;
1362 PrintException(NULL, "ThreadOpenAddedConnections()");
1364 printf("ThreadOpenAddedConnections exiting\n");
1367 void ThreadOpenAddedConnections2(void* parg)
1369 printf("ThreadOpenAddedConnections started\n");
1371 if (mapArgs.count("-addnode") == 0)
1374 vector<vector<CService> > vservAddressesToAdd(0);
1375 BOOST_FOREACH(string& strAddNode, mapMultiArgs["-addnode"])
1377 vector<CService> vservNode(0);
1378 if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fAllowDNS, 0))
1380 vservAddressesToAdd.push_back(vservNode);
1381 CRITICAL_BLOCK(cs_setservAddNodeAddresses)
1382 BOOST_FOREACH(CService& serv, vservNode)
1383 setservAddNodeAddresses.insert(serv);
1388 vector<vector<CService> > vservConnectAddresses = vservAddressesToAdd;
1389 // Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
1390 // (keeping in mind that addnode entries can have many IPs if fAllowDNS)
1391 CRITICAL_BLOCK(cs_vNodes)
1392 BOOST_FOREACH(CNode* pnode, vNodes)
1393 for (vector<vector<CService> >::iterator it = vservConnectAddresses.begin(); it != vservConnectAddresses.end(); it++)
1394 BOOST_FOREACH(CService& addrNode, *(it))
1395 if (pnode->addr == addrNode)
1397 it = vservConnectAddresses.erase(it);
1401 BOOST_FOREACH(vector<CService>& vserv, vservConnectAddresses)
1403 OpenNetworkConnection(CAddress(*(vserv.begin())));
1410 vnThreadsRunning[7]--;
1411 Sleep(120000); // Retry every 2 minutes
1412 vnThreadsRunning[7]++;
1418 bool OpenNetworkConnection(const CAddress& addrConnect)
1421 // Initiate outbound network connection
1425 if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost || !addrConnect.IsIPv4() ||
1426 FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect))
1429 vnThreadsRunning[1]--;
1430 CNode* pnode = ConnectNode(addrConnect);
1431 vnThreadsRunning[1]++;
1436 pnode->fNetworkNode = true;
1448 void ThreadMessageHandler(void* parg)
1450 IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
1453 vnThreadsRunning[2]++;
1454 ThreadMessageHandler2(parg);
1455 vnThreadsRunning[2]--;
1457 catch (std::exception& e) {
1458 vnThreadsRunning[2]--;
1459 PrintException(&e, "ThreadMessageHandler()");
1461 vnThreadsRunning[2]--;
1462 PrintException(NULL, "ThreadMessageHandler()");
1464 printf("ThreadMessageHandler exiting\n");
1467 void ThreadMessageHandler2(void* parg)
1469 printf("ThreadMessageHandler started\n");
1470 SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
1473 vector<CNode*> vNodesCopy;
1474 CRITICAL_BLOCK(cs_vNodes)
1476 vNodesCopy = vNodes;
1477 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1481 // Poll the connected nodes for messages
1482 CNode* pnodeTrickle = NULL;
1483 if (!vNodesCopy.empty())
1484 pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
1485 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1488 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
1489 ProcessMessages(pnode);
1494 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
1495 SendMessages(pnode, pnode == pnodeTrickle);
1500 CRITICAL_BLOCK(cs_vNodes)
1502 BOOST_FOREACH(CNode* pnode, vNodesCopy)
1506 // Wait and allow messages to bunch up.
1507 // Reduce vnThreadsRunning so StopNode has permission to exit while
1508 // we're sleeping, but we must always check fShutdown after doing this.
1509 vnThreadsRunning[2]--;
1511 if (fRequestShutdown)
1513 vnThreadsRunning[2]++;
1524 bool BindListenPort(string& strError)
1528 addrLocalHost.SetPort(GetListenPort());
1531 // Initialize Windows Sockets
1533 int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
1534 if (ret != NO_ERROR)
1536 strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
1537 printf("%s\n", strError.c_str());
1542 // Create socket for listening for incoming connections
1543 hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
1544 if (hListenSocket == INVALID_SOCKET)
1546 strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
1547 printf("%s\n", strError.c_str());
1552 // Different way of disabling SIGPIPE on BSD
1553 setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
1557 // Allow binding if the port is still in TIME_WAIT state after
1558 // the program was closed and restarted. Not an issue on windows.
1559 setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
1563 // Set to nonblocking, incoming connections will also inherit this
1564 if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
1566 if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
1569 strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
1570 printf("%s\n", strError.c_str());
1574 // The sockaddr_in structure specifies the address family,
1575 // IP address, and port for the socket that is being bound
1576 struct sockaddr_in sockaddr;
1577 memset(&sockaddr, 0, sizeof(sockaddr));
1578 sockaddr.sin_family = AF_INET;
1579 sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
1580 sockaddr.sin_port = htons(GetListenPort());
1581 if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
1583 int nErr = WSAGetLastError();
1584 if (nErr == WSAEADDRINUSE)
1585 strError = strprintf(_("Unable to bind to port %d on this computer. Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
1587 strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
1588 printf("%s\n", strError.c_str());
1591 printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
1593 // Listen for incoming connections
1594 if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
1596 strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
1597 printf("%s\n", strError.c_str());
1604 void StartNode(void* parg)
1606 if (pnodeLocalHost == NULL)
1607 pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
1610 // Get local host ip
1611 char pszHostName[1000] = "";
1612 if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
1614 vector<CNetAddr> vaddr;
1615 if (LookupHost(pszHostName, vaddr))
1616 BOOST_FOREACH (const CNetAddr &addr, vaddr)
1617 if (!addr.IsLocal())
1619 addrLocalHost.SetIP(addr);
1624 // Get local host ip
1625 struct ifaddrs* myaddrs;
1626 if (getifaddrs(&myaddrs) == 0)
1628 for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
1630 if (ifa->ifa_addr == NULL) continue;
1631 if ((ifa->ifa_flags & IFF_UP) == 0) continue;
1632 if (strcmp(ifa->ifa_name, "lo") == 0) continue;
1633 if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
1635 if (ifa->ifa_addr->sa_family == AF_INET)
1637 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
1638 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
1639 printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);
1641 // Take the first IP that isn't loopback 127.x.x.x
1642 CAddress addr(CService(s4->sin_addr, GetListenPort()), nLocalServices);
1643 if (addr.IsValid() && !addr.IsLocal())
1645 addrLocalHost = addr;
1649 else if (ifa->ifa_addr->sa_family == AF_INET6)
1651 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
1652 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
1653 printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
1656 freeifaddrs(myaddrs);
1659 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1661 if (fUseProxy || mapArgs.count("-connect") || fNoListen)
1663 // Proxies can't take incoming connections
1664 addrLocalHost.SetIP(CNetAddr("0.0.0.0"));
1665 printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
1669 CreateThread(ThreadGetMyExternalIP, NULL);
1676 if (GetBoolArg("-nodnsseed"))
1677 printf("DNS seeding disabled\n");
1679 if (!CreateThread(ThreadDNSAddressSeed, NULL))
1680 printf("Error: CreateThread(ThreadDNSAddressSeed) failed\n");
1682 // Map ports with UPnP
1686 // Get addresses from IRC and advertise ours
1687 if (!CreateThread(ThreadIRCSeed, NULL))
1688 printf("Error: CreateThread(ThreadIRCSeed) failed\n");
1690 // Send and receive from sockets, accept connections
1691 if (!CreateThread(ThreadSocketHandler, NULL))
1692 printf("Error: CreateThread(ThreadSocketHandler) failed\n");
1694 // Initiate outbound connections from -addnode
1695 if (!CreateThread(ThreadOpenAddedConnections, NULL))
1696 printf("Error: CreateThread(ThreadOpenAddedConnections) failed\n");
1698 // Initiate outbound connections
1699 if (!CreateThread(ThreadOpenConnections, NULL))
1700 printf("Error: CreateThread(ThreadOpenConnections) failed\n");
1703 if (!CreateThread(ThreadMessageHandler, NULL))
1704 printf("Error: CreateThread(ThreadMessageHandler) failed\n");
1706 // Generate coins in the background
1707 GenerateBitcoins(fGenerateBitcoins, pwalletMain);
1712 printf("StopNode()\n");
1714 nTransactionsUpdated++;
1715 int64 nStart = GetTime();
1716 while (vnThreadsRunning[0] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0 || vnThreadsRunning[4] > 0
1717 || (fHaveUPnP && vnThreadsRunning[5] > 0) || vnThreadsRunning[6] > 0 || vnThreadsRunning[7] > 0
1720 if (GetTime() - nStart > 20)
1724 if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
1725 if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
1726 if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
1727 if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
1728 if (vnThreadsRunning[4] > 0) printf("ThreadRPCServer still running\n");
1729 if (fHaveUPnP && vnThreadsRunning[5] > 0) printf("ThreadMapPort still running\n");
1730 if (vnThreadsRunning[6] > 0) printf("ThreadDNSAddressSeed still running\n");
1731 if (vnThreadsRunning[7] > 0) printf("ThreadOpenAddedConnections still running\n");
1732 while (vnThreadsRunning[2] > 0 || vnThreadsRunning[4] > 0)
1748 BOOST_FOREACH(CNode* pnode, vNodes)
1749 if (pnode->hSocket != INVALID_SOCKET)
1750 closesocket(pnode->hSocket);
1751 if (hListenSocket != INVALID_SOCKET)
1752 if (closesocket(hListenSocket) == SOCKET_ERROR)
1753 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
1756 // Shutdown Windows Sockets
1761 instance_of_cnetcleanup;