raw
experimental-genesis    1 //  /****************************\
experimental-genesis    2 // *      EXPERIMENTAL BRANCH.    *
experimental-genesis    3 // *    FOR LABORATORY USE ONLY.  *
experimental-genesis    4 // ********************************
experimental-genesis    5 //           ************
experimental-genesis    6 //          **************
experimental-genesis    7 //         ****************
experimental-genesis    8 //        ****   ****   ****
experimental-genesis    9 //        ***     ***    ***
experimental-genesis   10 //        ***     ***    ***
experimental-genesis   11 //         ***    * *    **
experimental-genesis   12 //         ******** ********
experimental-genesis   13 //         *******   ******
experimental-genesis   14 //             ***   **
experimental-genesis   15 //           *  ******* **
experimental-genesis   16 //           ** * * * * *
experimental-genesis   17 //     **     *         *     ***
experimental-genesis   18 //    ****    * *     * *    ****
experimental-genesis   19 //    ****    *** * * **     ***
experimental-genesis   20 //     ****    *********   ******
experimental-genesis   21 //    *******    *****    *******
experimental-genesis   22 //    *********        ****** **
experimental-genesis   23 //     **   ******   ******
experimental-genesis   24 //            **  *******       **
experimental-genesis   25 //    **       *******         ***
experimental-genesis   26 //   ****   ********  ************
experimental-genesis   27 //   ************    ************
experimental-genesis   28 //    ********             *******
experimental-genesis   29 //   ******                   ****
experimental-genesis   30 //    ***                      ***
experimental-genesis   31 // ********************************
experimental-genesis   32 // Copyright (c) 2009-2010 Satoshi Nakamoto
experimental-genesis   33 // Copyright (c) 2009-2012 The Bitcoin developers
experimental-genesis   34 // Distributed under the MIT/X11 software license, see the accompanying
experimental-genesis   35 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
experimental-genesis   36 
experimental-genesis   37 #include "headers.h"
experimental-genesis   38 #include "irc.h"
experimental-genesis   39 #include "db.h"
experimental-genesis   40 #include "net.h"
experimental-genesis   41 #include "init.h"
experimental-genesis   42 #include "strlcpy.h"
experimental-genesis   43 
experimental-genesis   44 #ifdef WIN32
experimental-genesis   45 #include <string.h>
experimental-genesis   46 #endif
experimental-genesis   47 
experimental-genesis   48 #ifdef USE_UPNP
experimental-genesis   49 #include <miniupnpc/miniwget.h>
experimental-genesis   50 #include <miniupnpc/miniupnpc.h>
experimental-genesis   51 #include <miniupnpc/upnpcommands.h>
experimental-genesis   52 #include <miniupnpc/upnperrors.h>
experimental-genesis   53 #endif
experimental-genesis   54 
experimental-genesis   55 using namespace std;
experimental-genesis   56 using namespace boost;
experimental-genesis   57 
experimental-genesis   58 static const int MAX_OUTBOUND_CONNECTIONS = 8;
experimental-genesis   59 
experimental-genesis   60 void ThreadMessageHandler2(void* parg);
experimental-genesis   61 void ThreadSocketHandler2(void* parg);
experimental-genesis   62 void ThreadOpenConnections2(void* parg);
experimental-genesis   63 #ifdef USE_UPNP
experimental-genesis   64 void ThreadMapPort2(void* parg);
experimental-genesis   65 #endif
experimental-genesis   66 void ThreadDNSAddressSeed2(void* parg);
experimental-genesis   67 bool OpenNetworkConnection(const CAddress& addrConnect);
experimental-genesis   68 
experimental-genesis   69 
experimental-genesis   70 
experimental-genesis   71 
experimental-genesis   72 
experimental-genesis   73 //
experimental-genesis   74 // Global state variables
experimental-genesis   75 //
experimental-genesis   76 bool fClient = false;
experimental-genesis   77 bool fAllowDNS = false;
experimental-genesis   78 uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
experimental-genesis   79 CAddress addrLocalHost("0.0.0.0", 0, false, nLocalServices);
experimental-genesis   80 static CNode* pnodeLocalHost = NULL;
experimental-genesis   81 uint64 nLocalHostNonce = 0;
experimental-genesis   82 array<int, 10> vnThreadsRunning;
experimental-genesis   83 static SOCKET hListenSocket = INVALID_SOCKET;
experimental-genesis   84 
experimental-genesis   85 vector<CNode*> vNodes;
experimental-genesis   86 CCriticalSection cs_vNodes;
experimental-genesis   87 map<vector<unsigned char>, CAddress> mapAddresses;
experimental-genesis   88 CCriticalSection cs_mapAddresses;
experimental-genesis   89 map<CInv, CDataStream> mapRelay;
experimental-genesis   90 deque<pair<int64, CInv> > vRelayExpiration;
experimental-genesis   91 CCriticalSection cs_mapRelay;
experimental-genesis   92 map<CInv, int64> mapAlreadyAskedFor;
experimental-genesis   93 
experimental-genesis   94 // Settings
experimental-genesis   95 int fUseProxy = false;
experimental-genesis   96 int nConnectTimeout = 5000;
experimental-genesis   97 CAddress addrProxy("127.0.0.1",9050);
experimental-genesis   98 
experimental-genesis   99 
experimental-genesis  100 
experimental-genesis  101 
experimental-genesis  102 unsigned short GetListenPort()
experimental-genesis  103 {
experimental-genesis  104     return (unsigned short)(GetArg("-port", GetDefaultPort()));
experimental-genesis  105 }
experimental-genesis  106 
experimental-genesis  107 void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd)
experimental-genesis  108 {
experimental-genesis  109     // Filter out duplicate requests
experimental-genesis  110     if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd)
experimental-genesis  111         return;
experimental-genesis  112     pindexLastGetBlocksBegin = pindexBegin;
experimental-genesis  113     hashLastGetBlocksEnd = hashEnd;
experimental-genesis  114 
experimental-genesis  115     PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);
experimental-genesis  116 }
experimental-genesis  117 
experimental-genesis  118 
experimental-genesis  119 
experimental-genesis  120 
experimental-genesis  121 
experimental-genesis  122 bool ConnectSocket(const CAddress& addrConnect, SOCKET& hSocketRet, int nTimeout)
experimental-genesis  123 {
experimental-genesis  124     hSocketRet = INVALID_SOCKET;
experimental-genesis  125 
experimental-genesis  126     SOCKET hSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
experimental-genesis  127     if (hSocket == INVALID_SOCKET)
experimental-genesis  128         return false;
experimental-genesis  129 #ifdef SO_NOSIGPIPE
experimental-genesis  130     int set = 1;
experimental-genesis  131     setsockopt(hSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&set, sizeof(int));
experimental-genesis  132 #endif
experimental-genesis  133 
experimental-genesis  134     bool fProxy = (fUseProxy && addrConnect.IsRoutable());
experimental-genesis  135     struct sockaddr_in sockaddr = (fProxy ? addrProxy.GetSockAddr() : addrConnect.GetSockAddr());
experimental-genesis  136 
experimental-genesis  137 #ifdef WIN32
experimental-genesis  138     u_long fNonblock = 1;
experimental-genesis  139     if (ioctlsocket(hSocket, FIONBIO, &fNonblock) == SOCKET_ERROR)
experimental-genesis  140 #else
experimental-genesis  141     int fFlags = fcntl(hSocket, F_GETFL, 0);
experimental-genesis  142     if (fcntl(hSocket, F_SETFL, fFlags | O_NONBLOCK) == -1)
experimental-genesis  143 #endif
experimental-genesis  144     {
experimental-genesis  145         closesocket(hSocket);
experimental-genesis  146         return false;
experimental-genesis  147     }
experimental-genesis  148 
experimental-genesis  149 
experimental-genesis  150     if (connect(hSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
experimental-genesis  151     {
experimental-genesis  152         // WSAEINVAL is here because some legacy version of winsock uses it
experimental-genesis  153         if (WSAGetLastError() == WSAEINPROGRESS || WSAGetLastError() == WSAEWOULDBLOCK || WSAGetLastError() == WSAEINVAL)
experimental-genesis  154         {
experimental-genesis  155             struct timeval timeout;
experimental-genesis  156             timeout.tv_sec  = nTimeout / 1000;
experimental-genesis  157             timeout.tv_usec = (nTimeout % 1000) * 1000;
experimental-genesis  158 
experimental-genesis  159             fd_set fdset;
experimental-genesis  160             FD_ZERO(&fdset);
experimental-genesis  161             FD_SET(hSocket, &fdset);
experimental-genesis  162             int nRet = select(hSocket + 1, NULL, &fdset, NULL, &timeout);
experimental-genesis  163             if (nRet == 0)
experimental-genesis  164             {
experimental-genesis  165                 printf("connection timeout\n");
experimental-genesis  166                 closesocket(hSocket);
experimental-genesis  167                 return false;
experimental-genesis  168             }
experimental-genesis  169             if (nRet == SOCKET_ERROR)
experimental-genesis  170             {
experimental-genesis  171                 printf("select() for connection failed: %i\n",WSAGetLastError());
experimental-genesis  172                 closesocket(hSocket);
experimental-genesis  173                 return false;
experimental-genesis  174             }
experimental-genesis  175             socklen_t nRetSize = sizeof(nRet);
experimental-genesis  176 #ifdef WIN32
experimental-genesis  177             if (getsockopt(hSocket, SOL_SOCKET, SO_ERROR, (char*)(&nRet), &nRetSize) == SOCKET_ERROR)
experimental-genesis  178 #else
experimental-genesis  179             if (getsockopt(hSocket, SOL_SOCKET, SO_ERROR, &nRet, &nRetSize) == SOCKET_ERROR)
experimental-genesis  180 #endif
experimental-genesis  181             {
experimental-genesis  182                 printf("getsockopt() for connection failed: %i\n",WSAGetLastError());
experimental-genesis  183                 closesocket(hSocket);
experimental-genesis  184                 return false;
experimental-genesis  185             }
experimental-genesis  186             if (nRet != 0)
experimental-genesis  187             {
experimental-genesis  188                 printf("connect() failed after select(): %s\n",strerror(nRet));
experimental-genesis  189                 closesocket(hSocket);
experimental-genesis  190                 return false;
experimental-genesis  191             }
experimental-genesis  192         }
experimental-genesis  193 #ifdef WIN32
experimental-genesis  194         else if (WSAGetLastError() != WSAEISCONN)
experimental-genesis  195 #else
experimental-genesis  196         else
experimental-genesis  197 #endif
experimental-genesis  198         {
experimental-genesis  199             printf("connect() failed: %i\n",WSAGetLastError());
experimental-genesis  200             closesocket(hSocket);
experimental-genesis  201             return false;
experimental-genesis  202         }
experimental-genesis  203     }
experimental-genesis  204 
experimental-genesis  205     /*
experimental-genesis  206     this isn't even strictly necessary
experimental-genesis  207     CNode::ConnectNode immediately turns the socket back to non-blocking
experimental-genesis  208     but we'll turn it back to blocking just in case
experimental-genesis  209     */
experimental-genesis  210 #ifdef WIN32
experimental-genesis  211     fNonblock = 0;
experimental-genesis  212     if (ioctlsocket(hSocket, FIONBIO, &fNonblock) == SOCKET_ERROR)
experimental-genesis  213 #else
experimental-genesis  214     fFlags = fcntl(hSocket, F_GETFL, 0);
experimental-genesis  215     if (fcntl(hSocket, F_SETFL, fFlags & !O_NONBLOCK) == SOCKET_ERROR)
experimental-genesis  216 #endif
experimental-genesis  217     {
experimental-genesis  218         closesocket(hSocket);
experimental-genesis  219         return false;
experimental-genesis  220     }
experimental-genesis  221 
experimental-genesis  222     if (fProxy)
experimental-genesis  223     {
experimental-genesis  224         printf("proxy connecting %s\n", addrConnect.ToString().c_str());
experimental-genesis  225         char pszSocks4IP[] = "\4\1\0\0\0\0\0\0user";
experimental-genesis  226         memcpy(pszSocks4IP + 2, &addrConnect.port, 2);
experimental-genesis  227         memcpy(pszSocks4IP + 4, &addrConnect.ip, 4);
experimental-genesis  228         char* pszSocks4 = pszSocks4IP;
experimental-genesis  229         int nSize = sizeof(pszSocks4IP);
experimental-genesis  230 
experimental-genesis  231         int ret = send(hSocket, pszSocks4, nSize, MSG_NOSIGNAL);
experimental-genesis  232         if (ret != nSize)
experimental-genesis  233         {
experimental-genesis  234             closesocket(hSocket);
experimental-genesis  235             return error("Error sending to proxy");
experimental-genesis  236         }
experimental-genesis  237         char pchRet[8];
experimental-genesis  238         if (recv(hSocket, pchRet, 8, 0) != 8)
experimental-genesis  239         {
experimental-genesis  240             closesocket(hSocket);
experimental-genesis  241             return error("Error reading proxy response");
experimental-genesis  242         }
experimental-genesis  243         if (pchRet[1] != 0x5a)
experimental-genesis  244         {
experimental-genesis  245             closesocket(hSocket);
experimental-genesis  246             if (pchRet[1] != 0x5b)
experimental-genesis  247                 printf("ERROR: Proxy returned error %d\n", pchRet[1]);
experimental-genesis  248             return false;
experimental-genesis  249         }
experimental-genesis  250         printf("proxy connected %s\n", addrConnect.ToString().c_str());
experimental-genesis  251     }
experimental-genesis  252 
experimental-genesis  253     hSocketRet = hSocket;
experimental-genesis  254     return true;
experimental-genesis  255 }
experimental-genesis  256 
experimental-genesis  257 // portDefault is in host order
experimental-genesis  258 bool Lookup(const char *pszName, vector<CAddress>& vaddr, int nServices, int nMaxSolutions, bool fAllowLookup, int portDefault, bool fAllowPort)
experimental-genesis  259 {
experimental-genesis  260     vaddr.clear();
experimental-genesis  261     if (pszName[0] == 0)
experimental-genesis  262         return false;
experimental-genesis  263     int port = portDefault;
experimental-genesis  264     char psz[256];
experimental-genesis  265     char *pszHost = psz;
experimental-genesis  266     strlcpy(psz, pszName, sizeof(psz));
experimental-genesis  267     if (fAllowPort)
experimental-genesis  268     {
experimental-genesis  269         char* pszColon = strrchr(psz+1,':');
experimental-genesis  270         char *pszPortEnd = NULL;
experimental-genesis  271         int portParsed = pszColon ? strtoul(pszColon+1, &pszPortEnd, 10) : 0;
experimental-genesis  272         if (pszColon && pszPortEnd && pszPortEnd[0] == 0)
experimental-genesis  273         {
experimental-genesis  274             if (psz[0] == '[' && pszColon[-1] == ']')
experimental-genesis  275             {
experimental-genesis  276                 // Future: enable IPv6 colon-notation inside []
experimental-genesis  277                 pszHost = psz+1;
experimental-genesis  278                 pszColon[-1] = 0;
experimental-genesis  279             }
experimental-genesis  280             else
experimental-genesis  281                 pszColon[0] = 0;
experimental-genesis  282             port = portParsed;
experimental-genesis  283             if (port < 0 || port > USHRT_MAX)
experimental-genesis  284                 port = USHRT_MAX;
experimental-genesis  285         }
experimental-genesis  286     }
experimental-genesis  287 
experimental-genesis  288     unsigned int addrIP = inet_addr(pszHost);
experimental-genesis  289     if (addrIP != INADDR_NONE)
experimental-genesis  290     {
experimental-genesis  291         // valid IP address passed
experimental-genesis  292         vaddr.push_back(CAddress(addrIP, port, nServices));
experimental-genesis  293         return true;
experimental-genesis  294     }
experimental-genesis  295 
experimental-genesis  296     if (!fAllowLookup)
experimental-genesis  297         return false;
experimental-genesis  298 
experimental-genesis  299     struct hostent* phostent = gethostbyname(pszHost);
experimental-genesis  300     if (!phostent)
experimental-genesis  301         return false;
experimental-genesis  302 
experimental-genesis  303     if (phostent->h_addrtype != AF_INET)
experimental-genesis  304         return false;
experimental-genesis  305 
experimental-genesis  306     char** ppAddr = phostent->h_addr_list;
experimental-genesis  307     while (*ppAddr != NULL && vaddr.size() != nMaxSolutions)
experimental-genesis  308     {
experimental-genesis  309         CAddress addr(((struct in_addr*)ppAddr[0])->s_addr, port, nServices);
experimental-genesis  310         if (addr.IsValid())
experimental-genesis  311             vaddr.push_back(addr);
experimental-genesis  312         ppAddr++;
experimental-genesis  313     }
experimental-genesis  314 
experimental-genesis  315     return (vaddr.size() > 0);
experimental-genesis  316 }
experimental-genesis  317 
experimental-genesis  318 // portDefault is in host order
experimental-genesis  319 bool Lookup(const char *pszName, CAddress& addr, int nServices, bool fAllowLookup, int portDefault, bool fAllowPort)
experimental-genesis  320 {
experimental-genesis  321     vector<CAddress> vaddr;
experimental-genesis  322     bool fRet = Lookup(pszName, vaddr, nServices, 1, fAllowLookup, portDefault, fAllowPort);
experimental-genesis  323     if (fRet)
experimental-genesis  324         addr = vaddr[0];
experimental-genesis  325     return fRet;
experimental-genesis  326 }
experimental-genesis  327 
experimental-genesis  328 bool GetMyExternalIP2(const CAddress& addrConnect, const char* pszGet, const char* pszKeyword, unsigned int& ipRet)
experimental-genesis  329 {
experimental-genesis  330     SOCKET hSocket;
experimental-genesis  331     if (!ConnectSocket(addrConnect, hSocket))
experimental-genesis  332         return error("GetMyExternalIP() : connection to %s failed", addrConnect.ToString().c_str());
experimental-genesis  333 
experimental-genesis  334     send(hSocket, pszGet, strlen(pszGet), MSG_NOSIGNAL);
experimental-genesis  335 
experimental-genesis  336     string strLine;
experimental-genesis  337     while (RecvLine(hSocket, strLine))
experimental-genesis  338     {
experimental-genesis  339         if (strLine.empty()) // HTTP response is separated from headers by blank line
experimental-genesis  340         {
experimental-genesis  341             loop
experimental-genesis  342             {
experimental-genesis  343                 if (!RecvLine(hSocket, strLine))
experimental-genesis  344                 {
experimental-genesis  345                     closesocket(hSocket);
experimental-genesis  346                     return false;
experimental-genesis  347                 }
experimental-genesis  348                 if (pszKeyword == NULL)
experimental-genesis  349                     break;
experimental-genesis  350                 if (strLine.find(pszKeyword) != -1)
experimental-genesis  351                 {
experimental-genesis  352                     strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
experimental-genesis  353                     break;
experimental-genesis  354                 }
experimental-genesis  355             }
experimental-genesis  356             closesocket(hSocket);
experimental-genesis  357             if (strLine.find("<") != -1)
experimental-genesis  358                 strLine = strLine.substr(0, strLine.find("<"));
experimental-genesis  359             strLine = strLine.substr(strspn(strLine.c_str(), " \t\n\r"));
experimental-genesis  360             while (strLine.size() > 0 && isspace(strLine[strLine.size()-1]))
experimental-genesis  361                 strLine.resize(strLine.size()-1);
experimental-genesis  362             CAddress addr(strLine,0,true);
experimental-genesis  363             printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
experimental-genesis  364             if (addr.ip == 0 || addr.ip == INADDR_NONE || !addr.IsRoutable())
experimental-genesis  365                 return false;
experimental-genesis  366             ipRet = addr.ip;
experimental-genesis  367             return true;
experimental-genesis  368         }
experimental-genesis  369     }
experimental-genesis  370     closesocket(hSocket);
experimental-genesis  371     return error("GetMyExternalIP() : connection closed");
experimental-genesis  372 }
experimental-genesis  373 
experimental-genesis  374 // We now get our external IP from the IRC server first and only use this as a backup
experimental-genesis  375 bool GetMyExternalIP(unsigned int& ipRet)
experimental-genesis  376 {
experimental-genesis  377     CAddress addrConnect;
experimental-genesis  378     const char* pszGet;
experimental-genesis  379     const char* pszKeyword;
experimental-genesis  380 
experimental-genesis  381     if (fUseProxy)
experimental-genesis  382         return false;
experimental-genesis  383 
experimental-genesis  384     for (int nLookup = 0; nLookup <= 1; nLookup++)
experimental-genesis  385     for (int nHost = 1; nHost <= 2; nHost++)
experimental-genesis  386     {
experimental-genesis  387         // We should be phasing out our use of sites like these.  If we need
experimental-genesis  388         // replacements, we should ask for volunteers to put this simple
experimental-genesis  389         // php file on their webserver that prints the client IP:
experimental-genesis  390         //  <?php echo $_SERVER["REMOTE_ADDR"]; ?>
experimental-genesis  391         if (nHost == 1)
experimental-genesis  392         {
experimental-genesis  393             addrConnect = CAddress("91.198.22.70",80); // checkip.dyndns.org
experimental-genesis  394 
experimental-genesis  395             if (nLookup == 1)
experimental-genesis  396             {
experimental-genesis  397                 CAddress addrIP("checkip.dyndns.org", 80, true);
experimental-genesis  398                 if (addrIP.IsValid())
experimental-genesis  399                     addrConnect = addrIP;
experimental-genesis  400             }
experimental-genesis  401 
experimental-genesis  402             pszGet = "GET / HTTP/1.1\r\n"
experimental-genesis  403                      "Host: checkip.dyndns.org\r\n"
experimental-genesis  404                      "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
experimental-genesis  405                      "Connection: close\r\n"
experimental-genesis  406                      "\r\n";
experimental-genesis  407 
experimental-genesis  408             pszKeyword = "Address:";
experimental-genesis  409         }
experimental-genesis  410         else if (nHost == 2)
experimental-genesis  411         {
experimental-genesis  412             addrConnect = CAddress("74.208.43.192", 80); // www.showmyip.com
experimental-genesis  413 
experimental-genesis  414             if (nLookup == 1)
experimental-genesis  415             {
experimental-genesis  416                 CAddress addrIP("www.showmyip.com", 80, true);
experimental-genesis  417                 if (addrIP.IsValid())
experimental-genesis  418                     addrConnect = addrIP;
experimental-genesis  419             }
experimental-genesis  420 
experimental-genesis  421             pszGet = "GET /simple/ HTTP/1.1\r\n"
experimental-genesis  422                      "Host: www.showmyip.com\r\n"
experimental-genesis  423                      "User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
experimental-genesis  424                      "Connection: close\r\n"
experimental-genesis  425                      "\r\n";
experimental-genesis  426 
experimental-genesis  427             pszKeyword = NULL; // Returns just IP address
experimental-genesis  428         }
experimental-genesis  429 
experimental-genesis  430         if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
experimental-genesis  431             return true;
experimental-genesis  432     }
experimental-genesis  433 
experimental-genesis  434     return false;
experimental-genesis  435 }
experimental-genesis  436 
experimental-genesis  437 void ThreadGetMyExternalIP(void* parg)
experimental-genesis  438 {
experimental-genesis  439     // Wait for IRC to get it first
experimental-genesis  440     if (!GetBoolArg("-noirc"))
experimental-genesis  441     {
experimental-genesis  442         for (int i = 0; i < 2 * 60; i++)
experimental-genesis  443         {
experimental-genesis  444             Sleep(1000);
experimental-genesis  445             if (fGotExternalIP || fShutdown)
experimental-genesis  446                 return;
experimental-genesis  447         }
experimental-genesis  448     }
experimental-genesis  449 
experimental-genesis  450     // Fallback in case IRC fails to get it
experimental-genesis  451     if (GetMyExternalIP(addrLocalHost.ip))
experimental-genesis  452     {
experimental-genesis  453         printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
experimental-genesis  454         if (addrLocalHost.IsRoutable())
experimental-genesis  455         {
experimental-genesis  456             // If we already connected to a few before we had our IP, go back and addr them.
experimental-genesis  457             // setAddrKnown automatically filters any duplicate sends.
experimental-genesis  458             CAddress addr(addrLocalHost);
experimental-genesis  459             addr.nTime = GetAdjustedTime();
experimental-genesis  460             CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  461                 BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  462                     pnode->PushAddress(addr);
experimental-genesis  463         }
experimental-genesis  464     }
experimental-genesis  465 }
experimental-genesis  466 
experimental-genesis  467 
experimental-genesis  468 
experimental-genesis  469 
experimental-genesis  470 
experimental-genesis  471 bool AddAddress(CAddress addr, int64 nTimePenalty, CAddrDB *pAddrDB)
experimental-genesis  472 {
experimental-genesis  473     if (!addr.IsRoutable())
experimental-genesis  474         return false;
experimental-genesis  475     if (addr.ip == addrLocalHost.ip)
experimental-genesis  476         return false;
experimental-genesis  477     addr.nTime = max((int64)0, (int64)addr.nTime - nTimePenalty);
experimental-genesis  478     bool fUpdated = false;
experimental-genesis  479     bool fNew = false;
experimental-genesis  480     CAddress addrFound = addr;
experimental-genesis  481 
experimental-genesis  482     CRITICAL_BLOCK(cs_mapAddresses)
experimental-genesis  483     {
experimental-genesis  484         map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
experimental-genesis  485         if (it == mapAddresses.end())
experimental-genesis  486         {
experimental-genesis  487             // New address
experimental-genesis  488             printf("AddAddress(%s)\n", addr.ToString().c_str());
experimental-genesis  489             mapAddresses.insert(make_pair(addr.GetKey(), addr));
experimental-genesis  490             fUpdated = true;
experimental-genesis  491             fNew = true;
experimental-genesis  492         }
experimental-genesis  493         else
experimental-genesis  494         {
experimental-genesis  495             addrFound = (*it).second;
experimental-genesis  496             if ((addrFound.nServices | addr.nServices) != addrFound.nServices)
experimental-genesis  497             {
experimental-genesis  498                 // Services have been added
experimental-genesis  499                 addrFound.nServices |= addr.nServices;
experimental-genesis  500                 fUpdated = true;
experimental-genesis  501             }
experimental-genesis  502             bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
experimental-genesis  503             int64 nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
experimental-genesis  504             if (addrFound.nTime < addr.nTime - nUpdateInterval)
experimental-genesis  505             {
experimental-genesis  506                 // Periodically update most recently seen time
experimental-genesis  507                 addrFound.nTime = addr.nTime;
experimental-genesis  508                 fUpdated = true;
experimental-genesis  509             }
experimental-genesis  510         }
experimental-genesis  511     }
experimental-genesis  512     // There is a nasty deadlock bug if this is done inside the cs_mapAddresses
experimental-genesis  513     // CRITICAL_BLOCK:
experimental-genesis  514     // Thread 1:  begin db transaction (locks inside-db-mutex)
experimental-genesis  515     //            then AddAddress (locks cs_mapAddresses)
experimental-genesis  516     // Thread 2:  AddAddress (locks cs_mapAddresses)
experimental-genesis  517     //             ... then db operation hangs waiting for inside-db-mutex
experimental-genesis  518     if (fUpdated)
experimental-genesis  519     {
experimental-genesis  520         if (pAddrDB)
experimental-genesis  521             pAddrDB->WriteAddress(addrFound);
experimental-genesis  522         else
experimental-genesis  523             CAddrDB().WriteAddress(addrFound);
experimental-genesis  524     }
experimental-genesis  525     return fNew;
experimental-genesis  526 }
experimental-genesis  527 
experimental-genesis  528 void AddressCurrentlyConnected(const CAddress& addr)
experimental-genesis  529 {
experimental-genesis  530     CAddress *paddrFound = NULL;
experimental-genesis  531 
experimental-genesis  532     CRITICAL_BLOCK(cs_mapAddresses)
experimental-genesis  533     {
experimental-genesis  534         // Only if it's been published already
experimental-genesis  535         map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
experimental-genesis  536         if (it != mapAddresses.end())
experimental-genesis  537             paddrFound = &(*it).second;
experimental-genesis  538     }
experimental-genesis  539 
experimental-genesis  540     if (paddrFound)
experimental-genesis  541     {
experimental-genesis  542         int64 nUpdateInterval = 20 * 60;
experimental-genesis  543         if (paddrFound->nTime < GetAdjustedTime() - nUpdateInterval)
experimental-genesis  544         {
experimental-genesis  545             // Periodically update most recently seen time
experimental-genesis  546             paddrFound->nTime = GetAdjustedTime();
experimental-genesis  547             CAddrDB addrdb;
experimental-genesis  548             addrdb.WriteAddress(*paddrFound);
experimental-genesis  549         }
experimental-genesis  550     }
experimental-genesis  551 }
experimental-genesis  552 
experimental-genesis  553 
experimental-genesis  554 
experimental-genesis  555 
experimental-genesis  556 
experimental-genesis  557 void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1)
experimental-genesis  558 {
experimental-genesis  559     // If the dialog might get closed before the reply comes back,
experimental-genesis  560     // call this in the destructor so it doesn't get called after it's deleted.
experimental-genesis  561     CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  562     {
experimental-genesis  563         BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  564         {
experimental-genesis  565             CRITICAL_BLOCK(pnode->cs_mapRequests)
experimental-genesis  566             {
experimental-genesis  567                 for (map<uint256, CRequestTracker>::iterator mi = pnode->mapRequests.begin(); mi != pnode->mapRequests.end();)
experimental-genesis  568                 {
experimental-genesis  569                     CRequestTracker& tracker = (*mi).second;
experimental-genesis  570                     if (tracker.fn == fn && tracker.param1 == param1)
experimental-genesis  571                         pnode->mapRequests.erase(mi++);
experimental-genesis  572                     else
experimental-genesis  573                         mi++;
experimental-genesis  574                 }
experimental-genesis  575             }
experimental-genesis  576         }
experimental-genesis  577     }
experimental-genesis  578 }
experimental-genesis  579 
experimental-genesis  580 
experimental-genesis  581 
experimental-genesis  582 
experimental-genesis  583 
experimental-genesis  584 
experimental-genesis  585 
experimental-genesis  586 //
experimental-genesis  587 // Subscription methods for the broadcast and subscription system.
experimental-genesis  588 // Channel numbers are message numbers, i.e. MSG_TABLE and MSG_PRODUCT.
experimental-genesis  589 //
experimental-genesis  590 // The subscription system uses a meet-in-the-middle strategy.
experimental-genesis  591 // With 100,000 nodes, if senders broadcast to 1000 random nodes and receivers
experimental-genesis  592 // subscribe to 1000 random nodes, 99.995% (1 - 0.99^1000) of messages will get through.
experimental-genesis  593 //
experimental-genesis  594 
experimental-genesis  595 bool AnySubscribed(unsigned int nChannel)
experimental-genesis  596 {
experimental-genesis  597     if (pnodeLocalHost->IsSubscribed(nChannel))
experimental-genesis  598         return true;
experimental-genesis  599     CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  600         BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  601             if (pnode->IsSubscribed(nChannel))
experimental-genesis  602                 return true;
experimental-genesis  603     return false;
experimental-genesis  604 }
experimental-genesis  605 
experimental-genesis  606 bool CNode::IsSubscribed(unsigned int nChannel)
experimental-genesis  607 {
experimental-genesis  608     if (nChannel >= vfSubscribe.size())
experimental-genesis  609         return false;
experimental-genesis  610     return vfSubscribe[nChannel];
experimental-genesis  611 }
experimental-genesis  612 
experimental-genesis  613 void CNode::Subscribe(unsigned int nChannel, unsigned int nHops)
experimental-genesis  614 {
experimental-genesis  615     if (nChannel >= vfSubscribe.size())
experimental-genesis  616         return;
experimental-genesis  617 
experimental-genesis  618     if (!AnySubscribed(nChannel))
experimental-genesis  619     {
experimental-genesis  620         // Relay subscribe
experimental-genesis  621         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  622             BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  623                 if (pnode != this)
experimental-genesis  624                     pnode->PushMessage("subscribe", nChannel, nHops);
experimental-genesis  625     }
experimental-genesis  626 
experimental-genesis  627     vfSubscribe[nChannel] = true;
experimental-genesis  628 }
experimental-genesis  629 
experimental-genesis  630 void CNode::CancelSubscribe(unsigned int nChannel)
experimental-genesis  631 {
experimental-genesis  632     if (nChannel >= vfSubscribe.size())
experimental-genesis  633         return;
experimental-genesis  634 
experimental-genesis  635     // Prevent from relaying cancel if wasn't subscribed
experimental-genesis  636     if (!vfSubscribe[nChannel])
experimental-genesis  637         return;
experimental-genesis  638     vfSubscribe[nChannel] = false;
experimental-genesis  639 
experimental-genesis  640     if (!AnySubscribed(nChannel))
experimental-genesis  641     {
experimental-genesis  642         // Relay subscription cancel
experimental-genesis  643         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  644             BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  645                 if (pnode != this)
experimental-genesis  646                     pnode->PushMessage("sub-cancel", nChannel);
experimental-genesis  647     }
experimental-genesis  648 }
experimental-genesis  649 
experimental-genesis  650 
experimental-genesis  651 
experimental-genesis  652 
experimental-genesis  653 
experimental-genesis  654 
experimental-genesis  655 
experimental-genesis  656 
experimental-genesis  657 
experimental-genesis  658 CNode* FindNode(unsigned int ip)
experimental-genesis  659 {
experimental-genesis  660     CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  661     {
experimental-genesis  662         BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  663             if (pnode->addr.ip == ip)
experimental-genesis  664                 return (pnode);
experimental-genesis  665     }
experimental-genesis  666     return NULL;
experimental-genesis  667 }
experimental-genesis  668 
experimental-genesis  669 CNode* FindNode(CAddress addr)
experimental-genesis  670 {
experimental-genesis  671     CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  672     {
experimental-genesis  673         BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  674             if (pnode->addr == addr)
experimental-genesis  675                 return (pnode);
experimental-genesis  676     }
experimental-genesis  677     return NULL;
experimental-genesis  678 }
experimental-genesis  679 
experimental-genesis  680 CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
experimental-genesis  681 {
experimental-genesis  682     if (addrConnect.ip == addrLocalHost.ip)
experimental-genesis  683         return NULL;
experimental-genesis  684 
experimental-genesis  685     // Look for an existing connection
experimental-genesis  686     CNode* pnode = FindNode(addrConnect.ip);
experimental-genesis  687     if (pnode)
experimental-genesis  688     {
experimental-genesis  689         if (nTimeout != 0)
experimental-genesis  690             pnode->AddRef(nTimeout);
experimental-genesis  691         else
experimental-genesis  692             pnode->AddRef();
experimental-genesis  693         return pnode;
experimental-genesis  694     }
experimental-genesis  695 
experimental-genesis  696     /// debug print
experimental-genesis  697     printf("trying connection %s lastseen=%.1fhrs lasttry=%.1fhrs\n",
experimental-genesis  698         addrConnect.ToString().c_str(),
experimental-genesis  699         (double)(addrConnect.nTime - GetAdjustedTime())/3600.0,
experimental-genesis  700         (double)(addrConnect.nLastTry - GetAdjustedTime())/3600.0);
experimental-genesis  701 
experimental-genesis  702     CRITICAL_BLOCK(cs_mapAddresses)
experimental-genesis  703         mapAddresses[addrConnect.GetKey()].nLastTry = GetAdjustedTime();
experimental-genesis  704 
experimental-genesis  705     // Connect
experimental-genesis  706     SOCKET hSocket;
experimental-genesis  707     if (ConnectSocket(addrConnect, hSocket))
experimental-genesis  708     {
experimental-genesis  709         /// debug print
experimental-genesis  710         printf("connected %s\n", addrConnect.ToString().c_str());
experimental-genesis  711 
experimental-genesis  712         // Set to nonblocking
experimental-genesis  713 #ifdef WIN32
experimental-genesis  714         u_long nOne = 1;
experimental-genesis  715         if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
experimental-genesis  716             printf("ConnectSocket() : ioctlsocket nonblocking setting failed, error %d\n", WSAGetLastError());
experimental-genesis  717 #else
experimental-genesis  718         if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
experimental-genesis  719             printf("ConnectSocket() : fcntl nonblocking setting failed, error %d\n", errno);
experimental-genesis  720 #endif
experimental-genesis  721 
experimental-genesis  722         // Add node
experimental-genesis  723         CNode* pnode = new CNode(hSocket, addrConnect, false);
experimental-genesis  724         if (nTimeout != 0)
experimental-genesis  725             pnode->AddRef(nTimeout);
experimental-genesis  726         else
experimental-genesis  727             pnode->AddRef();
experimental-genesis  728         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  729             vNodes.push_back(pnode);
experimental-genesis  730 
experimental-genesis  731         pnode->nTimeConnected = GetTime();
experimental-genesis  732         return pnode;
experimental-genesis  733     }
experimental-genesis  734     else
experimental-genesis  735     {
experimental-genesis  736         return NULL;
experimental-genesis  737     }
experimental-genesis  738 }
experimental-genesis  739 
experimental-genesis  740 void CNode::CloseSocketDisconnect()
experimental-genesis  741 {
experimental-genesis  742     fDisconnect = true;
experimental-genesis  743     if (hSocket != INVALID_SOCKET)
experimental-genesis  744     {
experimental-genesis  745         if (fDebug)
experimental-genesis  746             printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
experimental-genesis  747         printf("disconnecting node %s\n", addr.ToString().c_str());
experimental-genesis  748         closesocket(hSocket);
experimental-genesis  749         hSocket = INVALID_SOCKET;
experimental-genesis  750     }
experimental-genesis  751 }
experimental-genesis  752 
experimental-genesis  753 void CNode::Cleanup()
experimental-genesis  754 {
experimental-genesis  755     // All of a nodes broadcasts and subscriptions are automatically torn down
experimental-genesis  756     // when it goes down, so a node has to stay up to keep its broadcast going.
experimental-genesis  757 
experimental-genesis  758     // Cancel subscriptions
experimental-genesis  759     for (unsigned int nChannel = 0; nChannel < vfSubscribe.size(); nChannel++)
experimental-genesis  760         if (vfSubscribe[nChannel])
experimental-genesis  761             CancelSubscribe(nChannel);
experimental-genesis  762 }
experimental-genesis  763 
experimental-genesis  764 
experimental-genesis  765 std::map<unsigned int, int64> CNode::setBanned;
experimental-genesis  766 CCriticalSection CNode::cs_setBanned;
experimental-genesis  767 
experimental-genesis  768 void CNode::ClearBanned()
experimental-genesis  769 {
experimental-genesis  770     setBanned.clear();
experimental-genesis  771 }
experimental-genesis  772 
experimental-genesis  773 bool CNode::IsBanned(unsigned int ip)
experimental-genesis  774 {
experimental-genesis  775     bool fResult = false;
experimental-genesis  776     CRITICAL_BLOCK(cs_setBanned)
experimental-genesis  777     {
experimental-genesis  778         std::map<unsigned int, int64>::iterator i = setBanned.find(ip);
experimental-genesis  779         if (i != setBanned.end())
experimental-genesis  780         {
experimental-genesis  781             int64 t = (*i).second;
experimental-genesis  782             if (GetTime() < t)
experimental-genesis  783                 fResult = true;
experimental-genesis  784         }
experimental-genesis  785     }
experimental-genesis  786     return fResult;
experimental-genesis  787 }
experimental-genesis  788 
experimental-genesis  789 bool CNode::Misbehaving(int howmuch)
experimental-genesis  790 {
experimental-genesis  791     if (addr.IsLocal())
experimental-genesis  792     {
experimental-genesis  793         printf("Warning: local node %s misbehaving\n", addr.ToString().c_str());
experimental-genesis  794         return false;
experimental-genesis  795     }
experimental-genesis  796 
experimental-genesis  797     nMisbehavior += howmuch;
experimental-genesis  798     if (nMisbehavior >= GetArg("-banscore", 100))
experimental-genesis  799     {
experimental-genesis  800         int64 banTime = GetTime()+GetArg("-bantime", 60*60*24);  // Default 24-hour ban
experimental-genesis  801         CRITICAL_BLOCK(cs_setBanned)
experimental-genesis  802             if (setBanned[addr.ip] < banTime)
experimental-genesis  803                 setBanned[addr.ip] = banTime;
experimental-genesis  804         CloseSocketDisconnect();
experimental-genesis  805         printf("Disconnected %s for misbehavior (score=%d)\n", addr.ToString().c_str(), nMisbehavior);
experimental-genesis  806         return true;
experimental-genesis  807     }
experimental-genesis  808     return false;
experimental-genesis  809 }
experimental-genesis  810 
experimental-genesis  811 
experimental-genesis  812 
experimental-genesis  813 
experimental-genesis  814 
experimental-genesis  815 
experimental-genesis  816 
experimental-genesis  817 
experimental-genesis  818 
experimental-genesis  819 
experimental-genesis  820 
experimental-genesis  821 
experimental-genesis  822 void ThreadSocketHandler(void* parg)
experimental-genesis  823 {
experimental-genesis  824     IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
experimental-genesis  825     try
experimental-genesis  826     {
experimental-genesis  827         vnThreadsRunning[0]++;
experimental-genesis  828         ThreadSocketHandler2(parg);
experimental-genesis  829         vnThreadsRunning[0]--;
experimental-genesis  830     }
experimental-genesis  831     catch (std::exception& e) {
experimental-genesis  832         vnThreadsRunning[0]--;
experimental-genesis  833         PrintException(&e, "ThreadSocketHandler()");
experimental-genesis  834     } catch (...) {
experimental-genesis  835         vnThreadsRunning[0]--;
experimental-genesis  836         throw; // support pthread_cancel()
experimental-genesis  837     }
experimental-genesis  838     printf("ThreadSocketHandler exiting\n");
experimental-genesis  839 }
experimental-genesis  840 
experimental-genesis  841 void ThreadSocketHandler2(void* parg)
experimental-genesis  842 {
experimental-genesis  843     printf("ThreadSocketHandler started\n");
experimental-genesis  844     list<CNode*> vNodesDisconnected;
experimental-genesis  845     int nPrevNodeCount = 0;
experimental-genesis  846 
experimental-genesis  847     loop
experimental-genesis  848     {
experimental-genesis  849         //
experimental-genesis  850         // Disconnect nodes
experimental-genesis  851         //
experimental-genesis  852         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  853         {
experimental-genesis  854             // Disconnect unused nodes
experimental-genesis  855             vector<CNode*> vNodesCopy = vNodes;
experimental-genesis  856             BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis  857             {
experimental-genesis  858                 if (pnode->fDisconnect ||
experimental-genesis  859                     (pnode->GetRefCount() <= 0 && pnode->vRecv.empty() && pnode->vSend.empty()))
experimental-genesis  860                 {
experimental-genesis  861                     // remove from vNodes
experimental-genesis  862                     vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
experimental-genesis  863 
experimental-genesis  864                     // close socket and cleanup
experimental-genesis  865                     pnode->CloseSocketDisconnect();
experimental-genesis  866                     pnode->Cleanup();
experimental-genesis  867 
experimental-genesis  868                     // hold in disconnected pool until all refs are released
experimental-genesis  869                     pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 15 * 60);
experimental-genesis  870                     if (pnode->fNetworkNode || pnode->fInbound)
experimental-genesis  871                         pnode->Release();
experimental-genesis  872                     vNodesDisconnected.push_back(pnode);
experimental-genesis  873                 }
experimental-genesis  874             }
experimental-genesis  875 
experimental-genesis  876             // Delete disconnected nodes
experimental-genesis  877             list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
experimental-genesis  878             BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
experimental-genesis  879             {
experimental-genesis  880                 // wait until threads are done using it
experimental-genesis  881                 if (pnode->GetRefCount() <= 0)
experimental-genesis  882                 {
experimental-genesis  883                     bool fDelete = false;
experimental-genesis  884                     TRY_CRITICAL_BLOCK(pnode->cs_vSend)
experimental-genesis  885                      TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
experimental-genesis  886                       TRY_CRITICAL_BLOCK(pnode->cs_mapRequests)
experimental-genesis  887                        TRY_CRITICAL_BLOCK(pnode->cs_inventory)
experimental-genesis  888                         fDelete = true;
experimental-genesis  889                     if (fDelete)
experimental-genesis  890                     {
experimental-genesis  891                         vNodesDisconnected.remove(pnode);
experimental-genesis  892                         delete pnode;
experimental-genesis  893                     }
experimental-genesis  894                 }
experimental-genesis  895             }
experimental-genesis  896         }
experimental-genesis  897         if (vNodes.size() != nPrevNodeCount)
experimental-genesis  898         {
experimental-genesis  899             nPrevNodeCount = vNodes.size();
experimental-genesis  900             MainFrameRepaint();
experimental-genesis  901         }
experimental-genesis  902 
experimental-genesis  903 
experimental-genesis  904         //
experimental-genesis  905         // Find which sockets have data to receive
experimental-genesis  906         //
experimental-genesis  907         struct timeval timeout;
experimental-genesis  908         timeout.tv_sec  = 0;
experimental-genesis  909         timeout.tv_usec = 50000; // frequency to poll pnode->vSend
experimental-genesis  910 
experimental-genesis  911         fd_set fdsetRecv;
experimental-genesis  912         fd_set fdsetSend;
experimental-genesis  913         fd_set fdsetError;
experimental-genesis  914         FD_ZERO(&fdsetRecv);
experimental-genesis  915         FD_ZERO(&fdsetSend);
experimental-genesis  916         FD_ZERO(&fdsetError);
experimental-genesis  917         SOCKET hSocketMax = 0;
experimental-genesis  918 
experimental-genesis  919         if(hListenSocket != INVALID_SOCKET)
experimental-genesis  920             FD_SET(hListenSocket, &fdsetRecv);
experimental-genesis  921         hSocketMax = max(hSocketMax, hListenSocket);
experimental-genesis  922         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  923         {
experimental-genesis  924             BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  925             {
experimental-genesis  926                 if (pnode->hSocket == INVALID_SOCKET)
experimental-genesis  927                     continue;
experimental-genesis  928                 FD_SET(pnode->hSocket, &fdsetRecv);
experimental-genesis  929                 FD_SET(pnode->hSocket, &fdsetError);
experimental-genesis  930                 hSocketMax = max(hSocketMax, pnode->hSocket);
experimental-genesis  931                 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
experimental-genesis  932                     if (!pnode->vSend.empty())
experimental-genesis  933                         FD_SET(pnode->hSocket, &fdsetSend);
experimental-genesis  934             }
experimental-genesis  935         }
experimental-genesis  936 
experimental-genesis  937         vnThreadsRunning[0]--;
experimental-genesis  938         int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
experimental-genesis  939         vnThreadsRunning[0]++;
experimental-genesis  940         if (fShutdown)
experimental-genesis  941             return;
experimental-genesis  942         if (nSelect == SOCKET_ERROR)
experimental-genesis  943         {
experimental-genesis  944             int nErr = WSAGetLastError();
experimental-genesis  945             if (hSocketMax > -1)
experimental-genesis  946             {
experimental-genesis  947                 printf("socket select error %d\n", nErr);
experimental-genesis  948                 for (int i = 0; i <= hSocketMax; i++)
experimental-genesis  949                     FD_SET(i, &fdsetRecv);
experimental-genesis  950             }
experimental-genesis  951             FD_ZERO(&fdsetSend);
experimental-genesis  952             FD_ZERO(&fdsetError);
experimental-genesis  953             Sleep(timeout.tv_usec/1000);
experimental-genesis  954         }
experimental-genesis  955 
experimental-genesis  956 
experimental-genesis  957         //
experimental-genesis  958         // Accept new connections
experimental-genesis  959         //
experimental-genesis  960         if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
experimental-genesis  961         {
experimental-genesis  962             struct sockaddr_in sockaddr;
experimental-genesis  963             socklen_t len = sizeof(sockaddr);
experimental-genesis  964             SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
experimental-genesis  965             CAddress addr;
experimental-genesis  966             int nInbound = 0;
experimental-genesis  967 
experimental-genesis  968             if (hSocket != INVALID_SOCKET)
experimental-genesis  969                 addr = CAddress(sockaddr);
experimental-genesis  970 
experimental-genesis  971             CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  972                 BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis  973                 if (pnode->fInbound)
experimental-genesis  974                     nInbound++;
experimental-genesis  975 
experimental-genesis  976             if (hSocket == INVALID_SOCKET)
experimental-genesis  977             {
experimental-genesis  978                 if (WSAGetLastError() != WSAEWOULDBLOCK)
experimental-genesis  979                     printf("socket error accept failed: %d\n", WSAGetLastError());
experimental-genesis  980             }
experimental-genesis  981             else if (nInbound >= GetArg("-maxconnections", 125) - MAX_OUTBOUND_CONNECTIONS)
experimental-genesis  982             {
experimental-genesis  983                 closesocket(hSocket);
experimental-genesis  984             }
experimental-genesis  985             else if (CNode::IsBanned(addr.ip))
experimental-genesis  986             {
experimental-genesis  987                 printf("connection from %s dropped (banned)\n", addr.ToString().c_str());
experimental-genesis  988                 closesocket(hSocket);
experimental-genesis  989             }
experimental-genesis  990             else
experimental-genesis  991             {
experimental-genesis  992                 printf("accepted connection %s\n", addr.ToString().c_str());
experimental-genesis  993                 CNode* pnode = new CNode(hSocket, addr, true);
experimental-genesis  994                 pnode->AddRef();
experimental-genesis  995                 CRITICAL_BLOCK(cs_vNodes)
experimental-genesis  996                     vNodes.push_back(pnode);
experimental-genesis  997             }
experimental-genesis  998         }
experimental-genesis  999 
experimental-genesis 1000 
experimental-genesis 1001         //
experimental-genesis 1002         // Service each socket
experimental-genesis 1003         //
experimental-genesis 1004         vector<CNode*> vNodesCopy;
experimental-genesis 1005         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1006         {
experimental-genesis 1007             vNodesCopy = vNodes;
experimental-genesis 1008             BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1009                 pnode->AddRef();
experimental-genesis 1010         }
experimental-genesis 1011         BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1012         {
experimental-genesis 1013             if (fShutdown)
experimental-genesis 1014                 return;
experimental-genesis 1015 
experimental-genesis 1016             //
experimental-genesis 1017             // Receive
experimental-genesis 1018             //
experimental-genesis 1019             if (pnode->hSocket == INVALID_SOCKET)
experimental-genesis 1020                 continue;
experimental-genesis 1021             if (FD_ISSET(pnode->hSocket, &fdsetRecv) || FD_ISSET(pnode->hSocket, &fdsetError))
experimental-genesis 1022             {
experimental-genesis 1023                 TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
experimental-genesis 1024                 {
experimental-genesis 1025                     CDataStream& vRecv = pnode->vRecv;
experimental-genesis 1026                     unsigned int nPos = vRecv.size();
experimental-genesis 1027 
experimental-genesis 1028                     if (nPos > ReceiveBufferSize()) {
experimental-genesis 1029                         if (!pnode->fDisconnect)
experimental-genesis 1030                             printf("socket recv flood control disconnect (%d bytes)\n", vRecv.size());
experimental-genesis 1031                         pnode->CloseSocketDisconnect();
experimental-genesis 1032                     }
experimental-genesis 1033                     else {
experimental-genesis 1034                         // typical socket buffer is 8K-64K
experimental-genesis 1035                         char pchBuf[0x10000];
experimental-genesis 1036                         int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT);
experimental-genesis 1037                         if (nBytes > 0)
experimental-genesis 1038                         {
experimental-genesis 1039                             vRecv.resize(nPos + nBytes);
experimental-genesis 1040                             memcpy(&vRecv[nPos], pchBuf, nBytes);
experimental-genesis 1041                             pnode->nLastRecv = GetTime();
experimental-genesis 1042                         }
experimental-genesis 1043                         else if (nBytes == 0)
experimental-genesis 1044                         {
experimental-genesis 1045                             // socket closed gracefully
experimental-genesis 1046                             if (!pnode->fDisconnect)
experimental-genesis 1047                                 printf("socket closed\n");
experimental-genesis 1048                             pnode->CloseSocketDisconnect();
experimental-genesis 1049                         }
experimental-genesis 1050                         else if (nBytes < 0)
experimental-genesis 1051                         {
experimental-genesis 1052                             // error
experimental-genesis 1053                             int nErr = WSAGetLastError();
experimental-genesis 1054                             if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
experimental-genesis 1055                             {
experimental-genesis 1056                                 if (!pnode->fDisconnect)
experimental-genesis 1057                                     printf("socket recv error %d\n", nErr);
experimental-genesis 1058                                 pnode->CloseSocketDisconnect();
experimental-genesis 1059                             }
experimental-genesis 1060                         }
experimental-genesis 1061                     }
experimental-genesis 1062                 }
experimental-genesis 1063             }
experimental-genesis 1064 
experimental-genesis 1065             //
experimental-genesis 1066             // Send
experimental-genesis 1067             //
experimental-genesis 1068             if (pnode->hSocket == INVALID_SOCKET)
experimental-genesis 1069                 continue;
experimental-genesis 1070             if (FD_ISSET(pnode->hSocket, &fdsetSend))
experimental-genesis 1071             {
experimental-genesis 1072                 TRY_CRITICAL_BLOCK(pnode->cs_vSend)
experimental-genesis 1073                 {
experimental-genesis 1074                     CDataStream& vSend = pnode->vSend;
experimental-genesis 1075                     if (!vSend.empty())
experimental-genesis 1076                     {
experimental-genesis 1077                         int nBytes = send(pnode->hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL | MSG_DONTWAIT);
experimental-genesis 1078                         if (nBytes > 0)
experimental-genesis 1079                         {
experimental-genesis 1080                             vSend.erase(vSend.begin(), vSend.begin() + nBytes);
experimental-genesis 1081                             pnode->nLastSend = GetTime();
experimental-genesis 1082                         }
experimental-genesis 1083                         else if (nBytes < 0)
experimental-genesis 1084                         {
experimental-genesis 1085                             // error
experimental-genesis 1086                             int nErr = WSAGetLastError();
experimental-genesis 1087                             if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
experimental-genesis 1088                             {
experimental-genesis 1089                                 printf("socket send error %d\n", nErr);
experimental-genesis 1090                                 pnode->CloseSocketDisconnect();
experimental-genesis 1091                             }
experimental-genesis 1092                         }
experimental-genesis 1093                         if (vSend.size() > SendBufferSize()) {
experimental-genesis 1094                             if (!pnode->fDisconnect)
experimental-genesis 1095                                 printf("socket send flood control disconnect (%d bytes)\n", vSend.size());
experimental-genesis 1096                             pnode->CloseSocketDisconnect();
experimental-genesis 1097                         }
experimental-genesis 1098                     }
experimental-genesis 1099                 }
experimental-genesis 1100             }
experimental-genesis 1101 
experimental-genesis 1102             //
experimental-genesis 1103             // Inactivity checking
experimental-genesis 1104             //
experimental-genesis 1105             if (pnode->vSend.empty())
experimental-genesis 1106                 pnode->nLastSendEmpty = GetTime();
experimental-genesis 1107             if (GetTime() - pnode->nTimeConnected > 60)
experimental-genesis 1108             {
experimental-genesis 1109                 if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
experimental-genesis 1110                 {
experimental-genesis 1111                     printf("socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
experimental-genesis 1112                     pnode->fDisconnect = true;
experimental-genesis 1113                 }
experimental-genesis 1114                 else if (GetTime() - pnode->nLastSend > 90*60 && GetTime() - pnode->nLastSendEmpty > 90*60)
experimental-genesis 1115                 {
experimental-genesis 1116                     printf("socket not sending\n");
experimental-genesis 1117                     pnode->fDisconnect = true;
experimental-genesis 1118                 }
experimental-genesis 1119                 else if (GetTime() - pnode->nLastRecv > 90*60)
experimental-genesis 1120                 {
experimental-genesis 1121                     printf("socket inactivity timeout\n");
experimental-genesis 1122                     pnode->fDisconnect = true;
experimental-genesis 1123                 }
experimental-genesis 1124             }
experimental-genesis 1125         }
experimental-genesis 1126         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1127         {
experimental-genesis 1128             BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1129                 pnode->Release();
experimental-genesis 1130         }
experimental-genesis 1131 
experimental-genesis 1132         Sleep(10);
experimental-genesis 1133     }
experimental-genesis 1134 }
experimental-genesis 1135 
experimental-genesis 1136 
experimental-genesis 1137 
experimental-genesis 1138 
experimental-genesis 1139 
experimental-genesis 1140 
experimental-genesis 1141 
experimental-genesis 1142 
experimental-genesis 1143 
experimental-genesis 1144 #ifdef USE_UPNP
experimental-genesis 1145 void ThreadMapPort(void* parg)
experimental-genesis 1146 {
experimental-genesis 1147     IMPLEMENT_RANDOMIZE_STACK(ThreadMapPort(parg));
experimental-genesis 1148     try
experimental-genesis 1149     {
experimental-genesis 1150         vnThreadsRunning[5]++;
experimental-genesis 1151         ThreadMapPort2(parg);
experimental-genesis 1152         vnThreadsRunning[5]--;
experimental-genesis 1153     }
experimental-genesis 1154     catch (std::exception& e) {
experimental-genesis 1155         vnThreadsRunning[5]--;
experimental-genesis 1156         PrintException(&e, "ThreadMapPort()");
experimental-genesis 1157     } catch (...) {
experimental-genesis 1158         vnThreadsRunning[5]--;
experimental-genesis 1159         PrintException(NULL, "ThreadMapPort()");
experimental-genesis 1160     }
experimental-genesis 1161     printf("ThreadMapPort exiting\n");
experimental-genesis 1162 }
experimental-genesis 1163 
experimental-genesis 1164 void ThreadMapPort2(void* parg)
experimental-genesis 1165 {
experimental-genesis 1166     printf("ThreadMapPort started\n");
experimental-genesis 1167 
experimental-genesis 1168     char port[6];
experimental-genesis 1169     sprintf(port, "%d", GetListenPort());
experimental-genesis 1170 
experimental-genesis 1171     const char * multicastif = 0;
experimental-genesis 1172     const char * minissdpdpath = 0;
experimental-genesis 1173     struct UPNPDev * devlist = 0;
experimental-genesis 1174     char lanaddr[64];
experimental-genesis 1175 
experimental-genesis 1176 #ifndef UPNPDISCOVER_SUCCESS
experimental-genesis 1177     /* miniupnpc 1.5 */
experimental-genesis 1178     devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
experimental-genesis 1179 #else
experimental-genesis 1180     /* miniupnpc 1.6 */
experimental-genesis 1181     int error = 0;
experimental-genesis 1182     devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
experimental-genesis 1183 #endif
experimental-genesis 1184 
experimental-genesis 1185     struct UPNPUrls urls;
experimental-genesis 1186     struct IGDdatas data;
experimental-genesis 1187     int r;
experimental-genesis 1188 
experimental-genesis 1189     r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
experimental-genesis 1190     if (r == 1)
experimental-genesis 1191     {
experimental-genesis 1192         if (!addrLocalHost.IsRoutable())
experimental-genesis 1193         {
experimental-genesis 1194             char externalIPAddress[40];
experimental-genesis 1195             r = UPNP_GetExternalIPAddress(urls.controlURL, data.first.servicetype, externalIPAddress);
experimental-genesis 1196             if(r != UPNPCOMMAND_SUCCESS)
experimental-genesis 1197                 printf("UPnP: GetExternalIPAddress() returned %d\n", r);
experimental-genesis 1198             else
experimental-genesis 1199             {
experimental-genesis 1200                 if(externalIPAddress[0])
experimental-genesis 1201                 {
experimental-genesis 1202                     printf("UPnP: ExternalIPAddress = %s\n", externalIPAddress);
experimental-genesis 1203                     CAddress addrExternalFromUPnP(externalIPAddress, 0, false, nLocalServices);
experimental-genesis 1204                     if (addrExternalFromUPnP.IsRoutable())
experimental-genesis 1205                         addrLocalHost = addrExternalFromUPnP;
experimental-genesis 1206                 }
experimental-genesis 1207                 else
experimental-genesis 1208                     printf("UPnP: GetExternalIPAddress failed.\n");
experimental-genesis 1209             }
experimental-genesis 1210         }
experimental-genesis 1211 
experimental-genesis 1212         string strDesc = "Bitcoin " + FormatFullVersion();
experimental-genesis 1213 #ifndef UPNPDISCOVER_SUCCESS
experimental-genesis 1214         /* miniupnpc 1.5 */
experimental-genesis 1215         r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
experimental-genesis 1216                             port, port, lanaddr, strDesc.c_str(), "TCP", 0);
experimental-genesis 1217 #else
experimental-genesis 1218         /* miniupnpc 1.6 */
experimental-genesis 1219         r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
experimental-genesis 1220                             port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
experimental-genesis 1221 #endif
experimental-genesis 1222 
experimental-genesis 1223         if(r!=UPNPCOMMAND_SUCCESS)
experimental-genesis 1224             printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
experimental-genesis 1225                 port, port, lanaddr, r, strupnperror(r));
experimental-genesis 1226         else
experimental-genesis 1227             printf("UPnP Port Mapping successful.\n");
experimental-genesis 1228         int i = 1;
experimental-genesis 1229         loop {
experimental-genesis 1230             if (fShutdown || !fUseUPnP)
experimental-genesis 1231             {
experimental-genesis 1232                 r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port, "TCP", 0);
experimental-genesis 1233                 printf("UPNP_DeletePortMapping() returned : %d\n", r);
experimental-genesis 1234                 freeUPNPDevlist(devlist); devlist = 0;
experimental-genesis 1235                 FreeUPNPUrls(&urls);
experimental-genesis 1236                 return;
experimental-genesis 1237             }
experimental-genesis 1238             if (i % 600 == 0) // Refresh every 20 minutes
experimental-genesis 1239             {
experimental-genesis 1240 #ifndef UPNPDISCOVER_SUCCESS
experimental-genesis 1241                 /* miniupnpc 1.5 */
experimental-genesis 1242                 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
experimental-genesis 1243                                     port, port, lanaddr, strDesc.c_str(), "TCP", 0);
experimental-genesis 1244 #else
experimental-genesis 1245                 /* miniupnpc 1.6 */
experimental-genesis 1246                 r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
experimental-genesis 1247                                     port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
experimental-genesis 1248 #endif
experimental-genesis 1249 
experimental-genesis 1250                 if(r!=UPNPCOMMAND_SUCCESS)
experimental-genesis 1251                     printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
experimental-genesis 1252                         port, port, lanaddr, r, strupnperror(r));
experimental-genesis 1253                 else
experimental-genesis 1254                     printf("UPnP Port Mapping successful.\n");;
experimental-genesis 1255             }
experimental-genesis 1256             Sleep(2000);
experimental-genesis 1257             i++;
experimental-genesis 1258         }
experimental-genesis 1259     } else {
experimental-genesis 1260         printf("No valid UPnP IGDs found\n");
experimental-genesis 1261         freeUPNPDevlist(devlist); devlist = 0;
experimental-genesis 1262         if (r != 0)
experimental-genesis 1263             FreeUPNPUrls(&urls);
experimental-genesis 1264         loop {
experimental-genesis 1265             if (fShutdown || !fUseUPnP)
experimental-genesis 1266                 return;
experimental-genesis 1267             Sleep(2000);
experimental-genesis 1268         }
experimental-genesis 1269     }
experimental-genesis 1270 }
experimental-genesis 1271 
experimental-genesis 1272 void MapPort(bool fMapPort)
experimental-genesis 1273 {
experimental-genesis 1274     if (fUseUPnP != fMapPort)
experimental-genesis 1275     {
experimental-genesis 1276         fUseUPnP = fMapPort;
experimental-genesis 1277         WriteSetting("fUseUPnP", fUseUPnP);
experimental-genesis 1278     }
experimental-genesis 1279     if (fUseUPnP && vnThreadsRunning[5] < 1)
experimental-genesis 1280     {
experimental-genesis 1281         if (!CreateThread(ThreadMapPort, NULL))
experimental-genesis 1282             printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
experimental-genesis 1283     }
experimental-genesis 1284 }
experimental-genesis 1285 #else
experimental-genesis 1286 void MapPort(bool /* unused fMapPort */)
experimental-genesis 1287 {
experimental-genesis 1288     // Intentionally left blank.
experimental-genesis 1289 }
experimental-genesis 1290 #endif
experimental-genesis 1291 
experimental-genesis 1292 
experimental-genesis 1293 
experimental-genesis 1294 
experimental-genesis 1295 
experimental-genesis 1296 
experimental-genesis 1297 
experimental-genesis 1298 
experimental-genesis 1299 
experimental-genesis 1300 
experimental-genesis 1301 static const char *strDNSSeed[] = {
experimental-genesis 1302     "bitseed.xf2.org",
experimental-genesis 1303     "dnsseed.bluematt.me",
experimental-genesis 1304     "seed.bitcoin.sipa.be",
experimental-genesis 1305     "dnsseed.bitcoin.dashjr.org",
experimental-genesis 1306 };
experimental-genesis 1307 
experimental-genesis 1308 void ThreadDNSAddressSeed(void* parg)
experimental-genesis 1309 {
experimental-genesis 1310     IMPLEMENT_RANDOMIZE_STACK(ThreadDNSAddressSeed(parg));
experimental-genesis 1311     try
experimental-genesis 1312     {
experimental-genesis 1313         vnThreadsRunning[6]++;
experimental-genesis 1314         ThreadDNSAddressSeed2(parg);
experimental-genesis 1315         vnThreadsRunning[6]--;
experimental-genesis 1316     }
experimental-genesis 1317     catch (std::exception& e) {
experimental-genesis 1318         vnThreadsRunning[6]--;
experimental-genesis 1319         PrintException(&e, "ThreadDNSAddressSeed()");
experimental-genesis 1320     } catch (...) {
experimental-genesis 1321         vnThreadsRunning[6]--;
experimental-genesis 1322         throw; // support pthread_cancel()
experimental-genesis 1323     }
experimental-genesis 1324     printf("ThreadDNSAddressSeed exiting\n");
experimental-genesis 1325 }
experimental-genesis 1326 
experimental-genesis 1327 void ThreadDNSAddressSeed2(void* parg)
experimental-genesis 1328 {
experimental-genesis 1329     printf("ThreadDNSAddressSeed started\n");
experimental-genesis 1330     int found = 0;
experimental-genesis 1331 
experimental-genesis 1332     if (!fTestNet)
experimental-genesis 1333     {
experimental-genesis 1334         printf("Loading addresses from DNS seeds (could take a while)\n");
experimental-genesis 1335 
experimental-genesis 1336         for (int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
experimental-genesis 1337             vector<CAddress> vaddr;
experimental-genesis 1338             if (Lookup(strDNSSeed[seed_idx], vaddr, NODE_NETWORK, -1, true))
experimental-genesis 1339             {
experimental-genesis 1340                 CAddrDB addrDB;
experimental-genesis 1341                 addrDB.TxnBegin();
experimental-genesis 1342                 BOOST_FOREACH (CAddress& addr, vaddr)
experimental-genesis 1343                 {
experimental-genesis 1344                     if (addr.GetByte(3) != 127)
experimental-genesis 1345                     {
experimental-genesis 1346                         addr.nTime = 0;
experimental-genesis 1347                         AddAddress(addr, 0, &addrDB);
experimental-genesis 1348                         found++;
experimental-genesis 1349                     }
experimental-genesis 1350                 }
experimental-genesis 1351                 addrDB.TxnCommit();  // Save addresses (it's ok if this fails)
experimental-genesis 1352             }
experimental-genesis 1353         }
experimental-genesis 1354     }
experimental-genesis 1355 
experimental-genesis 1356     printf("%d addresses found from DNS seeds\n", found);
experimental-genesis 1357 }
experimental-genesis 1358 
experimental-genesis 1359 
experimental-genesis 1360 
experimental-genesis 1361 
experimental-genesis 1362 
experimental-genesis 1363 
experimental-genesis 1364 
experimental-genesis 1365 
experimental-genesis 1366 
experimental-genesis 1367 
experimental-genesis 1368 
experimental-genesis 1369 
experimental-genesis 1370 unsigned int pnSeed[] =
experimental-genesis 1371 {
experimental-genesis 1372     0x959bd347, 0xf8de42b2, 0x73bc0518, 0xea6edc50, 0x21b00a4d, 0xc725b43d, 0xd665464d, 0x1a2a770e,
experimental-genesis 1373     0x27c93946, 0x65b2fa46, 0xb80ae255, 0x66b3b446, 0xb1877a3e, 0x6ee89e3e, 0xc3175b40, 0x2a01a83c,
experimental-genesis 1374     0x95b1363a, 0xa079ad3d, 0xe6ca801f, 0x027f4f4a, 0x34f7f03a, 0xf790f04a, 0x16ca801f, 0x2f4d5e40,
experimental-genesis 1375     0x3a4d5e40, 0xc43a322e, 0xc8159753, 0x14d4724c, 0x7919a118, 0xe0bdb34e, 0x68a16b2e, 0xff64b44d,
experimental-genesis 1376     0x6099115b, 0x9b57b05b, 0x7bd1b4ad, 0xdf95944f, 0x29d2b73d, 0xafa8db79, 0xe247ba41, 0x24078348,
experimental-genesis 1377     0xf722f03c, 0x33567ebc, 0xace64ed4, 0x984d3932, 0xb5f34e55, 0x27b7024d, 0x94579247, 0x8894042e,
experimental-genesis 1378     0x9357d34c, 0x1063c24b, 0xcaa228b1, 0xa3c5a8b2, 0x5dc64857, 0xa2c23643, 0xa8369a54, 0x31203077,
experimental-genesis 1379     0x00707c5c, 0x09fc0b3a, 0x272e9e2e, 0xf80f043e, 0x9449ca3e, 0x5512c33e, 0xd106b555, 0xe8024157,
experimental-genesis 1380     0xe288ec29, 0xc79c5461, 0xafb63932, 0xdb02ab4b, 0x0e512777, 0x8a145a4c, 0xb201ff4f, 0x5e09314b,
experimental-genesis 1381     0xcd9bfbcd, 0x1c023765, 0x4394e75c, 0xa728bd4d, 0x65331552, 0xa98420b1, 0x89ecf559, 0x6e80801f,
experimental-genesis 1382     0xf404f118, 0xefd62b51, 0x05918346, 0x9b186d5f, 0xacabab46, 0xf912e255, 0xc188ea62, 0xcc55734e,
experimental-genesis 1383     0xc668064d, 0xd77a4558, 0x46201c55, 0xf17dfc80, 0xf7142f2e, 0x87bfb718, 0x8aa54fb2, 0xc451d518,
experimental-genesis 1384     0xc4ae8831, 0x8dd44d55, 0x5bbd206c, 0x64536b5d, 0x5c667e60, 0x3b064242, 0xfe963a42, 0xa28e6dc8,
experimental-genesis 1385     0xe8a9604a, 0xc989464e, 0xd124a659, 0x50065140, 0xa44dfe5e, 0x1079e655, 0x3fb986d5, 0x47895b18,
experimental-genesis 1386     0x7d3ce4ad, 0x4561ba50, 0x296eec62, 0x255b41ad, 0xaed35ec9, 0x55556f12, 0xc7d3154d, 0x3297b65d,
experimental-genesis 1387     0x8930121f, 0xabf42e4e, 0x4a29e044, 0x1212685d, 0x676c1e40, 0xce009744, 0x383a8948, 0xa2dbd0ad,
experimental-genesis 1388     0xecc2564d, 0x07dbc252, 0x887ee24b, 0x5171644c, 0x6bb798c1, 0x847f495d, 0x4cbb7145, 0x3bb81c32,
experimental-genesis 1389     0x45eb262e, 0xc8015a4e, 0x250a361b, 0xf694f946, 0xd64a183e, 0xd4f1dd59, 0x8f20ffd4, 0x51d9e55c,
experimental-genesis 1390     0x09521763, 0x5e02002e, 0x32c8074d, 0xe685762e, 0x8290b0bc, 0x762a922e, 0xfc5ee754, 0x83a24829,
experimental-genesis 1391     0x775b224d, 0x6295bb4d, 0x38ec0555, 0xbffbba50, 0xe5560260, 0x86b16a7c, 0xd372234e, 0x49a3c24b,
experimental-genesis 1392     0x2f6a171f, 0x4d75ed60, 0xae94115b, 0xcb543744, 0x63080c59, 0x3f9c724c, 0xc977ce18, 0x532efb18,
experimental-genesis 1393     0x69dc3b2e, 0x5f94d929, 0x1732bb4d, 0x9c814b4d, 0xe6b3762e, 0xc024f662, 0x8face35b, 0x6b5b044d,
experimental-genesis 1394     0x798c7b57, 0x79a6b44c, 0x067d3057, 0xf9e94e5f, 0x91cbe15b, 0x71405eb2, 0x2662234e, 0xcbcc4a6d,
experimental-genesis 1395     0xbf69d54b, 0xa79b4e55, 0xec6d3e51, 0x7c0b3c02, 0x60f83653, 0x24c1e15c, 0x1110b62e, 0x10350f59,
experimental-genesis 1396     0xa56f1d55, 0x3509e7a9, 0xeb128354, 0x14268e2e, 0x934e28bc, 0x8e32692e, 0x8331a21f, 0x3e633932,
experimental-genesis 1397     0xc812b12e, 0xc684bf2e, 0x80112d2e, 0xe0ddc96c, 0xc630ca4a, 0x5c09b3b2, 0x0b580518, 0xc8e9d54b,
experimental-genesis 1398     0xd169aa43, 0x17d0d655, 0x1d029963, 0x7ff87559, 0xcb701f1f, 0x6fa3e85d, 0xe45e9a54, 0xf05d1802,
experimental-genesis 1399     0x44d03b2e, 0x837b692e, 0xccd4354e, 0x3d6da13c, 0x3423084d, 0xf707c34a, 0x55f6db3a, 0xad26e442,
experimental-genesis 1400     0x6233a21f, 0x09e80e59, 0x8caeb54d, 0xbe870941, 0xb407d20e, 0x20b51018, 0x56fb152e, 0x460d2a4e,
experimental-genesis 1401     0xbb9a2946, 0x560eb12e, 0xed83dd29, 0xd6724f53, 0xa50aafb8, 0x451346d9, 0x88348e2e, 0x7312fead,
experimental-genesis 1402     0x8ecaf96f, 0x1bda4e5f, 0xf1671e40, 0x3c8c3e3b, 0x4716324d, 0xdde24ede, 0xf98cd17d, 0xa91d4644,
experimental-genesis 1403     0x28124eb2, 0x147d5129, 0xd022042e, 0x61733d3b, 0xad0d5e02, 0x8ce2932e, 0xe5c18502, 0x549c1e32,
experimental-genesis 1404     0x9685801f, 0x86e217ad, 0xd948214b, 0x4110f462, 0x3a2e894e, 0xbd35492e, 0x87e0d558, 0x64b8ef7d,
experimental-genesis 1405     0x7c3eb962, 0x72a84b3e, 0x7cd667c9, 0x28370a2e, 0x4bc60e7b, 0x6fc1ec60, 0x14a6983f, 0x86739a4b,
experimental-genesis 1406     0x46954e5f, 0x32e2e15c, 0x2e9326cf, 0xe5801c5e, 0x379607b2, 0x32151145, 0xf0e39744, 0xacb54c55,
experimental-genesis 1407     0xa37dfb60, 0x83b55cc9, 0x388f7ca5, 0x15034f5f, 0x3e94965b, 0x68e0ffad, 0x35280f59, 0x8fe190cf,
experimental-genesis 1408     0x7c6ba5b2, 0xa5e9db43, 0x4ee1fc60, 0xd9d94e5f, 0x04040677, 0x0ea9b35e, 0x5961f14f, 0x67fda063,
experimental-genesis 1409     0xa48a5a31, 0xc6524e55, 0x283d325e, 0x3f37515f, 0x96b94b3e, 0xacce620e, 0x6481cc5b, 0xa4a06d4b,
experimental-genesis 1410     0x9e95d2d9, 0xe40c03d5, 0xc2f4514b, 0xb79aad44, 0xf64be843, 0xb2064070, 0xfca00455, 0x429dfa4e,
experimental-genesis 1411     0x2323f173, 0xeda4185e, 0xabd5227d, 0x9efd4d58, 0xb1104758, 0x4811e955, 0xbd9ab355, 0xe921f44b,
experimental-genesis 1412     0x9f166dce, 0x09e279b2, 0xe0c9ac7b, 0x7901a5ad, 0xa145d4b0, 0x79104671, 0xec31e35a, 0x4fe0b555,
experimental-genesis 1413     0xc7d9cbad, 0xad057f55, 0xe94cc759, 0x7fe0b043, 0xe4529f2e, 0x0d4dd4b2, 0x9f11a54d, 0x031e2e4e,
experimental-genesis 1414     0xe6014f5f, 0x11d1ca6c, 0x26bd7f61, 0xeb86854f, 0x4d347b57, 0x116bbe2e, 0xdba7234e, 0x7bcbfd2e,
experimental-genesis 1415     0x174dd4b2, 0x6686762e, 0xb089ba50, 0xc6258246, 0x087e767b, 0xc4a8cb4a, 0x595dba50, 0x7f0ae502,
experimental-genesis 1416     0x7b1dbd5a, 0xa0603492, 0x57d1af4b, 0x9e21ffd4, 0x6393064d, 0x7407376e, 0xe484762e, 0x122a4e53,
experimental-genesis 1417     0x4a37aa43, 0x3888a6be, 0xee77864e, 0x039c8dd5, 0x688d89af, 0x0e988f62, 0x08218246, 0xfc2f8246,
experimental-genesis 1418     0xd1d97040, 0xd64cd4b2, 0x5ae4a6b8, 0x7d0de9bc, 0x8d304d61, 0x06c5c672, 0xa4c8bd4d, 0xe0fd373b,
experimental-genesis 1419     0x575ebe4d, 0x72d26277, 0x55570f55, 0x77b154d9, 0xe214293a, 0xfc740f4b, 0xfe3f6a57, 0xa9c55f02,
experimental-genesis 1420     0xae4054db, 0x2394d918, 0xb511b24a, 0xb8741ab2, 0x0758e65e, 0xc7b5795b, 0xb0a30a4c, 0xaf7f170c,
experimental-genesis 1421     0xf3b4762e, 0x8179576d, 0x738a1581, 0x4b95b64c, 0x9829b618, 0x1bea932e, 0x7bdeaa4b, 0xcb5e0281,
experimental-genesis 1422     0x65618f54, 0x0658474b, 0x27066acf, 0x40556d65, 0x7d204d53, 0xf28bc244, 0xdce23455, 0xadc0ff54,
experimental-genesis 1423     0x3863c948, 0xcee34e5f, 0xdeb85e02, 0x2ed17a61, 0x6a7b094d, 0x7f0cfc40, 0x59603f54, 0x3220afbc,
experimental-genesis 1424     0xb5dfd962, 0x125d21c0, 0x13f8d243, 0xacfefb4e, 0x86c2c147, 0x3d8bbd59, 0xbd02a21f, 0x2593042e,
experimental-genesis 1425     0xc6a17a7c, 0x28925861, 0xb487ed44, 0xb5f4fd6d, 0x90c28a45, 0x5a14f74d, 0x43d71b4c, 0x728ebb5d,
experimental-genesis 1426     0x885bf950, 0x08134dd0, 0x38ec046e, 0xc575684b, 0x50082d2e, 0xa2f47757, 0x270f86ae, 0xf3ff6462,
experimental-genesis 1427     0x10ed3f4e, 0x4b58d462, 0xe01ce23e, 0x8c5b092e, 0x63e52f4e, 0x22c1e85d, 0xa908f54e, 0x8591624f,
experimental-genesis 1428     0x2c0fb94e, 0xa280ba3c, 0xb6f41b4c, 0x24f9aa47, 0x27201647, 0x3a3ea6dc, 0xa14fc3be, 0x3c34bdd5,
experimental-genesis 1429     0x5b8d4f5b, 0xaadeaf4b, 0xc71cab50, 0x15697a4c, 0x9a1a734c, 0x2a037d81, 0x2590bd59, 0x48ec2741,
experimental-genesis 1430     0x53489c5b, 0x7f00314b, 0x2170d362, 0xf2e92542, 0x42c10b44, 0x98f0f118, 0x883a3456, 0x099a932e,
experimental-genesis 1431     0xea38f7bc, 0x644e9247, 0xbb61b62e, 0x30e0863d, 0x5f51be54, 0x207215c7, 0x5f306c45, 0xaa7f3932,
experimental-genesis 1432     0x98da7d45, 0x4e339b59, 0x2e411581, 0xa808f618, 0xad2c0c59, 0x54476741, 0x09e99fd1, 0x5db8f752,
experimental-genesis 1433     0xc16df8bd, 0x1dd4b44f, 0x106edf2e, 0x9e15c180, 0x2ad6b56f, 0x633a5332, 0xff33787c, 0x077cb545,
experimental-genesis 1434     0x6610be6d, 0x75aad2c4, 0x72fb4d5b, 0xe81e0f59, 0x576f6332, 0x47333373, 0x351ed783, 0x2d90fb50,
experimental-genesis 1435     0x8d5e0f6c, 0x5b27a552, 0xdb293ebb, 0xe55ef950, 0x4b133ad8, 0x75df975a, 0x7b6a8740, 0xa899464b,
experimental-genesis 1436     0xfab15161, 0x10f8b64d, 0xd055ea4d, 0xee8e146b, 0x4b14afb8, 0x4bc1c44a, 0x9b961dcc, 0xd111ff43,
experimental-genesis 1437     0xfca0b745, 0xc800e412, 0x0afad9d1, 0xf751c350, 0xf9f0cccf, 0xa290a545, 0x8ef13763, 0x7ec70d59,
experimental-genesis 1438     0x2b066acf, 0x65496c45, 0xade02c1b, 0xae6eb077, 0x92c1e65b, 0xc064e6a9, 0xc649e56d, 0x5287a243,
experimental-genesis 1439     0x36de4f5b, 0x5b1df6ad, 0x65c39a59, 0xdba805b2, 0x20067aa8, 0x6457e56d, 0x3cee26cf, 0xfd3ff26d,
experimental-genesis 1440     0x04f86d4a, 0x06b8e048, 0xa93bcd5c, 0x91135852, 0xbe90a643, 0x8fa0094d, 0x06d8215f, 0x2677094d,
experimental-genesis 1441     0xd735685c, 0x164a00c9, 0x5209ac5f, 0xa9564c5c, 0x3b504f5f, 0xcc826bd0, 0x4615042e, 0x5fe13b4a,
experimental-genesis 1442     0x8c81b86d, 0x879ab68c, 0x1de564b8, 0x434487d8, 0x2dcb1b63, 0x82ab524a, 0xb0676abb, 0xa13d9c62,
experimental-genesis 1443     0xdbb5b86d, 0x5b7f4b59, 0xaddfb44d, 0xad773532, 0x3997054c, 0x72cebd89, 0xb194544c, 0xc5b8046e,
experimental-genesis 1444     0x6e1adeb2, 0xaa5abb51, 0xefb54b44, 0x15efc54f, 0xe9f1bc4d, 0x5f401b6c, 0x97f018ad, 0xc82f9252,
experimental-genesis 1445     0x2cdc762e, 0x8e52e56d, 0x1827175e, 0x9b7d7d80, 0xb2ad6845, 0x51065140, 0x71180a18, 0x5b27006c,
experimental-genesis 1446     0x0621e255, 0x721cbe58, 0x670c0cb8, 0xf8bd715d, 0xe0bdc5d9, 0xed843501, 0x4b84554d, 0x7f1a18bc,
experimental-genesis 1447     0x53bcaf47, 0x5729d35f, 0xf0dda246, 0x22382bd0, 0x4d641fb0, 0x316afcde, 0x50a22f1f, 0x73608046,
experimental-genesis 1448     0xc461d84a, 0xb2dbe247,
experimental-genesis 1449 };
experimental-genesis 1450 
experimental-genesis 1451 
experimental-genesis 1452 
experimental-genesis 1453 void ThreadOpenConnections(void* parg)
experimental-genesis 1454 {
experimental-genesis 1455     IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
experimental-genesis 1456     try
experimental-genesis 1457     {
experimental-genesis 1458         vnThreadsRunning[1]++;
experimental-genesis 1459         ThreadOpenConnections2(parg);
experimental-genesis 1460         vnThreadsRunning[1]--;
experimental-genesis 1461     }
experimental-genesis 1462     catch (std::exception& e) {
experimental-genesis 1463         vnThreadsRunning[1]--;
experimental-genesis 1464         PrintException(&e, "ThreadOpenConnections()");
experimental-genesis 1465     } catch (...) {
experimental-genesis 1466         vnThreadsRunning[1]--;
experimental-genesis 1467         PrintException(NULL, "ThreadOpenConnections()");
experimental-genesis 1468     }
experimental-genesis 1469     printf("ThreadOpenConnections exiting\n");
experimental-genesis 1470 }
experimental-genesis 1471 
experimental-genesis 1472 void ThreadOpenConnections2(void* parg)
experimental-genesis 1473 {
experimental-genesis 1474     printf("ThreadOpenConnections started\n");
experimental-genesis 1475 
experimental-genesis 1476     // Connect to specific addresses
experimental-genesis 1477     if (mapArgs.count("-connect"))
experimental-genesis 1478     {
experimental-genesis 1479         for (int64 nLoop = 0;; nLoop++)
experimental-genesis 1480         {
experimental-genesis 1481             BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
experimental-genesis 1482             {
experimental-genesis 1483                 CAddress addr(strAddr, fAllowDNS);
experimental-genesis 1484                 if (addr.IsValid())
experimental-genesis 1485                     OpenNetworkConnection(addr);
experimental-genesis 1486                 for (int i = 0; i < 10 && i < nLoop; i++)
experimental-genesis 1487                 {
experimental-genesis 1488                     Sleep(500);
experimental-genesis 1489                     if (fShutdown)
experimental-genesis 1490                         return;
experimental-genesis 1491                 }
experimental-genesis 1492             }
experimental-genesis 1493         }
experimental-genesis 1494     }
experimental-genesis 1495 
experimental-genesis 1496     // Connect to manually added nodes first
experimental-genesis 1497     if (mapArgs.count("-addnode"))
experimental-genesis 1498     {
experimental-genesis 1499         BOOST_FOREACH(string strAddr, mapMultiArgs["-addnode"])
experimental-genesis 1500         {
experimental-genesis 1501             CAddress addr(strAddr, fAllowDNS);
experimental-genesis 1502             if (addr.IsValid())
experimental-genesis 1503             {
experimental-genesis 1504                 OpenNetworkConnection(addr);
experimental-genesis 1505                 Sleep(500);
experimental-genesis 1506                 if (fShutdown)
experimental-genesis 1507                     return;
experimental-genesis 1508             }
experimental-genesis 1509         }
experimental-genesis 1510     }
experimental-genesis 1511 
experimental-genesis 1512     // Initiate network connections
experimental-genesis 1513     int64 nStart = GetTime();
experimental-genesis 1514     loop
experimental-genesis 1515     {
experimental-genesis 1516         vnThreadsRunning[1]--;
experimental-genesis 1517         Sleep(500);
experimental-genesis 1518         vnThreadsRunning[1]++;
experimental-genesis 1519         if (fShutdown)
experimental-genesis 1520             return;
experimental-genesis 1521 
experimental-genesis 1522         // Limit outbound connections
experimental-genesis 1523         loop
experimental-genesis 1524         {
experimental-genesis 1525             int nOutbound = 0;
experimental-genesis 1526             CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1527                 BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis 1528                     if (!pnode->fInbound)
experimental-genesis 1529                         nOutbound++;
experimental-genesis 1530             int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
experimental-genesis 1531             nMaxOutboundConnections = min(nMaxOutboundConnections, (int)GetArg("-maxconnections", 125));
experimental-genesis 1532             if (nOutbound < nMaxOutboundConnections)
experimental-genesis 1533                 break;
experimental-genesis 1534             vnThreadsRunning[1]--;
experimental-genesis 1535             Sleep(2000);
experimental-genesis 1536             vnThreadsRunning[1]++;
experimental-genesis 1537             if (fShutdown)
experimental-genesis 1538                 return;
experimental-genesis 1539         }
experimental-genesis 1540 
experimental-genesis 1541         bool fAddSeeds = false;
experimental-genesis 1542 
experimental-genesis 1543         CRITICAL_BLOCK(cs_mapAddresses)
experimental-genesis 1544         {
experimental-genesis 1545             // Add seed nodes if IRC isn't working
experimental-genesis 1546             bool fTOR = (fUseProxy && addrProxy.port == htons(9050));
experimental-genesis 1547             if (mapAddresses.empty() && (GetTime() - nStart > 60 || fUseProxy) && !fTestNet)
experimental-genesis 1548                 fAddSeeds = true;
experimental-genesis 1549         }
experimental-genesis 1550 
experimental-genesis 1551         if (fAddSeeds)
experimental-genesis 1552         {
experimental-genesis 1553             for (int i = 0; i < ARRAYLEN(pnSeed); i++)
experimental-genesis 1554             {
experimental-genesis 1555                 // It'll only connect to one or two seed nodes because once it connects,
experimental-genesis 1556                 // it'll get a pile of addresses with newer timestamps.
experimental-genesis 1557                 // Seed nodes are given a random 'last seen time' of between one and two
experimental-genesis 1558                 // weeks ago.
experimental-genesis 1559                 const int64 nOneWeek = 7*24*60*60;
experimental-genesis 1560                 CAddress addr;
experimental-genesis 1561                 addr.ip = pnSeed[i];
experimental-genesis 1562                 addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
experimental-genesis 1563                 AddAddress(addr);
experimental-genesis 1564             }
experimental-genesis 1565         }
experimental-genesis 1566 
experimental-genesis 1567         //
experimental-genesis 1568         // Choose an address to connect to based on most recently seen
experimental-genesis 1569         //
experimental-genesis 1570         CAddress addrConnect;
experimental-genesis 1571         int64 nBest = INT64_MIN;
experimental-genesis 1572 
experimental-genesis 1573         // Only connect to one address per a.b.?.? range.
experimental-genesis 1574         // Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
experimental-genesis 1575         set<unsigned int> setConnected;
experimental-genesis 1576         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1577             BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis 1578                 setConnected.insert(pnode->addr.ip & 0x0000ffff);
experimental-genesis 1579 
experimental-genesis 1580         int64 nANow = GetAdjustedTime();
experimental-genesis 1581 
experimental-genesis 1582         CRITICAL_BLOCK(cs_mapAddresses)
experimental-genesis 1583         {
experimental-genesis 1584             BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
experimental-genesis 1585             {
experimental-genesis 1586                 const CAddress& addr = item.second;
experimental-genesis 1587                 if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.ip & 0x0000ffff))
experimental-genesis 1588                     continue;
experimental-genesis 1589                 int64 nSinceLastSeen = nANow - addr.nTime;
experimental-genesis 1590                 int64 nSinceLastTry = nANow - addr.nLastTry;
experimental-genesis 1591 
experimental-genesis 1592                 // Randomize the order in a deterministic way, putting the standard port first
experimental-genesis 1593                 int64 nRandomizer = (uint64)(nStart * 4951 + addr.nLastTry * 9567851 + addr.ip * 7789) % (2 * 60 * 60);
experimental-genesis 1594                 if (addr.port != htons(GetDefaultPort()))
experimental-genesis 1595                     nRandomizer += 2 * 60 * 60;
experimental-genesis 1596 
experimental-genesis 1597                 // Last seen  Base retry frequency
experimental-genesis 1598                 //   <1 hour   10 min
experimental-genesis 1599                 //    1 hour    1 hour
experimental-genesis 1600                 //    4 hours   2 hours
experimental-genesis 1601                 //   24 hours   5 hours
experimental-genesis 1602                 //   48 hours   7 hours
experimental-genesis 1603                 //    7 days   13 hours
experimental-genesis 1604                 //   30 days   27 hours
experimental-genesis 1605                 //   90 days   46 hours
experimental-genesis 1606                 //  365 days   93 hours
experimental-genesis 1607                 int64 nDelay = (int64)(3600.0 * sqrt(fabs((double)nSinceLastSeen) / 3600.0) + nRandomizer);
experimental-genesis 1608 
experimental-genesis 1609                 // Fast reconnect for one hour after last seen
experimental-genesis 1610                 if (nSinceLastSeen < 60 * 60)
experimental-genesis 1611                     nDelay = 10 * 60;
experimental-genesis 1612 
experimental-genesis 1613                 // Limit retry frequency
experimental-genesis 1614                 if (nSinceLastTry < nDelay)
experimental-genesis 1615                     continue;
experimental-genesis 1616 
experimental-genesis 1617                 // If we have IRC, we'll be notified when they first come online,
experimental-genesis 1618                 // and again every 24 hours by the refresh broadcast.
experimental-genesis 1619                 if (nGotIRCAddresses > 0 && vNodes.size() >= 2 && nSinceLastSeen > 24 * 60 * 60)
experimental-genesis 1620                     continue;
experimental-genesis 1621 
experimental-genesis 1622                 // Only try the old stuff if we don't have enough connections
experimental-genesis 1623                 if (vNodes.size() >= 8 && nSinceLastSeen > 24 * 60 * 60)
experimental-genesis 1624                     continue;
experimental-genesis 1625 
experimental-genesis 1626                 // If multiple addresses are ready, prioritize by time since
experimental-genesis 1627                 // last seen and time since last tried.
experimental-genesis 1628                 int64 nScore = min(nSinceLastTry, (int64)24 * 60 * 60) - nSinceLastSeen - nRandomizer;
experimental-genesis 1629                 if (nScore > nBest)
experimental-genesis 1630                 {
experimental-genesis 1631                     nBest = nScore;
experimental-genesis 1632                     addrConnect = addr;
experimental-genesis 1633                 }
experimental-genesis 1634             }
experimental-genesis 1635         }
experimental-genesis 1636 
experimental-genesis 1637         if (addrConnect.IsValid())
experimental-genesis 1638             OpenNetworkConnection(addrConnect);
experimental-genesis 1639     }
experimental-genesis 1640 }
experimental-genesis 1641 
experimental-genesis 1642 bool OpenNetworkConnection(const CAddress& addrConnect)
experimental-genesis 1643 {
experimental-genesis 1644     //
experimental-genesis 1645     // Initiate outbound network connection
experimental-genesis 1646     //
experimental-genesis 1647     if (fShutdown)
experimental-genesis 1648         return false;
experimental-genesis 1649     if (addrConnect.ip == addrLocalHost.ip || !addrConnect.IsIPv4() ||
experimental-genesis 1650         FindNode(addrConnect.ip) || CNode::IsBanned(addrConnect.ip))
experimental-genesis 1651         return false;
experimental-genesis 1652 
experimental-genesis 1653     vnThreadsRunning[1]--;
experimental-genesis 1654     CNode* pnode = ConnectNode(addrConnect);
experimental-genesis 1655     vnThreadsRunning[1]++;
experimental-genesis 1656     if (fShutdown)
experimental-genesis 1657         return false;
experimental-genesis 1658     if (!pnode)
experimental-genesis 1659         return false;
experimental-genesis 1660     pnode->fNetworkNode = true;
experimental-genesis 1661 
experimental-genesis 1662     return true;
experimental-genesis 1663 }
experimental-genesis 1664 
experimental-genesis 1665 
experimental-genesis 1666 
experimental-genesis 1667 
experimental-genesis 1668 
experimental-genesis 1669 
experimental-genesis 1670 
experimental-genesis 1671 
experimental-genesis 1672 void ThreadMessageHandler(void* parg)
experimental-genesis 1673 {
experimental-genesis 1674     IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
experimental-genesis 1675     try
experimental-genesis 1676     {
experimental-genesis 1677         vnThreadsRunning[2]++;
experimental-genesis 1678         ThreadMessageHandler2(parg);
experimental-genesis 1679         vnThreadsRunning[2]--;
experimental-genesis 1680     }
experimental-genesis 1681     catch (std::exception& e) {
experimental-genesis 1682         vnThreadsRunning[2]--;
experimental-genesis 1683         PrintException(&e, "ThreadMessageHandler()");
experimental-genesis 1684     } catch (...) {
experimental-genesis 1685         vnThreadsRunning[2]--;
experimental-genesis 1686         PrintException(NULL, "ThreadMessageHandler()");
experimental-genesis 1687     }
experimental-genesis 1688     printf("ThreadMessageHandler exiting\n");
experimental-genesis 1689 }
experimental-genesis 1690 
experimental-genesis 1691 void ThreadMessageHandler2(void* parg)
experimental-genesis 1692 {
experimental-genesis 1693     printf("ThreadMessageHandler started\n");
experimental-genesis 1694     SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
experimental-genesis 1695     while (!fShutdown)
experimental-genesis 1696     {
experimental-genesis 1697         vector<CNode*> vNodesCopy;
experimental-genesis 1698         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1699         {
experimental-genesis 1700             vNodesCopy = vNodes;
experimental-genesis 1701             BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1702                 pnode->AddRef();
experimental-genesis 1703         }
experimental-genesis 1704 
experimental-genesis 1705         // Poll the connected nodes for messages
experimental-genesis 1706         CNode* pnodeTrickle = NULL;
experimental-genesis 1707         if (!vNodesCopy.empty())
experimental-genesis 1708             pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
experimental-genesis 1709         BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1710         {
experimental-genesis 1711             // Receive messages
experimental-genesis 1712             TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
experimental-genesis 1713                 ProcessMessages(pnode);
experimental-genesis 1714             if (fShutdown)
experimental-genesis 1715                 return;
experimental-genesis 1716 
experimental-genesis 1717             // Send messages
experimental-genesis 1718             TRY_CRITICAL_BLOCK(pnode->cs_vSend)
experimental-genesis 1719                 SendMessages(pnode, pnode == pnodeTrickle);
experimental-genesis 1720             if (fShutdown)
experimental-genesis 1721                 return;
experimental-genesis 1722         }
experimental-genesis 1723 
experimental-genesis 1724         CRITICAL_BLOCK(cs_vNodes)
experimental-genesis 1725         {
experimental-genesis 1726             BOOST_FOREACH(CNode* pnode, vNodesCopy)
experimental-genesis 1727                 pnode->Release();
experimental-genesis 1728         }
experimental-genesis 1729 
experimental-genesis 1730         // Wait and allow messages to bunch up.
experimental-genesis 1731         // Reduce vnThreadsRunning so StopNode has permission to exit while
experimental-genesis 1732         // we're sleeping, but we must always check fShutdown after doing this.
experimental-genesis 1733         vnThreadsRunning[2]--;
experimental-genesis 1734         Sleep(100);
experimental-genesis 1735         if (fRequestShutdown)
experimental-genesis 1736             Shutdown(NULL);
experimental-genesis 1737         vnThreadsRunning[2]++;
experimental-genesis 1738         if (fShutdown)
experimental-genesis 1739             return;
experimental-genesis 1740     }
experimental-genesis 1741 }
experimental-genesis 1742 
experimental-genesis 1743 
experimental-genesis 1744 
experimental-genesis 1745 
experimental-genesis 1746 
experimental-genesis 1747 
experimental-genesis 1748 bool BindListenPort(string& strError)
experimental-genesis 1749 {
experimental-genesis 1750     strError = "";
experimental-genesis 1751     int nOne = 1;
experimental-genesis 1752     addrLocalHost.port = htons(GetListenPort());
experimental-genesis 1753 
experimental-genesis 1754 #ifdef WIN32
experimental-genesis 1755     // Initialize Windows Sockets
experimental-genesis 1756     WSADATA wsadata;
experimental-genesis 1757     int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
experimental-genesis 1758     if (ret != NO_ERROR)
experimental-genesis 1759     {
experimental-genesis 1760         strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
experimental-genesis 1761         printf("%s\n", strError.c_str());
experimental-genesis 1762         return false;
experimental-genesis 1763     }
experimental-genesis 1764 #endif
experimental-genesis 1765 
experimental-genesis 1766     // Create socket for listening for incoming connections
experimental-genesis 1767     hListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
experimental-genesis 1768     if (hListenSocket == INVALID_SOCKET)
experimental-genesis 1769     {
experimental-genesis 1770         strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
experimental-genesis 1771         printf("%s\n", strError.c_str());
experimental-genesis 1772         return false;
experimental-genesis 1773     }
experimental-genesis 1774 
experimental-genesis 1775 #ifdef SO_NOSIGPIPE
experimental-genesis 1776     // Different way of disabling SIGPIPE on BSD
experimental-genesis 1777     setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
experimental-genesis 1778 #endif
experimental-genesis 1779 
experimental-genesis 1780 #ifndef WIN32
experimental-genesis 1781     // Allow binding if the port is still in TIME_WAIT state after
experimental-genesis 1782     // the program was closed and restarted.  Not an issue on windows.
experimental-genesis 1783     setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
experimental-genesis 1784 #endif
experimental-genesis 1785 
experimental-genesis 1786 #ifdef WIN32
experimental-genesis 1787     // Set to nonblocking, incoming connections will also inherit this
experimental-genesis 1788     if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
experimental-genesis 1789 #else
experimental-genesis 1790     if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
experimental-genesis 1791 #endif
experimental-genesis 1792     {
experimental-genesis 1793         strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
experimental-genesis 1794         printf("%s\n", strError.c_str());
experimental-genesis 1795         return false;
experimental-genesis 1796     }
experimental-genesis 1797 
experimental-genesis 1798     // The sockaddr_in structure specifies the address family,
experimental-genesis 1799     // IP address, and port for the socket that is being bound
experimental-genesis 1800     struct sockaddr_in sockaddr;
experimental-genesis 1801     memset(&sockaddr, 0, sizeof(sockaddr));
experimental-genesis 1802     sockaddr.sin_family = AF_INET;
experimental-genesis 1803     sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
experimental-genesis 1804     sockaddr.sin_port = htons(GetListenPort());
experimental-genesis 1805     if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
experimental-genesis 1806     {
experimental-genesis 1807         int nErr = WSAGetLastError();
experimental-genesis 1808         if (nErr == WSAEADDRINUSE)
experimental-genesis 1809             strError = strprintf(_("Unable to bind to port %d on this computer.  Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
experimental-genesis 1810         else
experimental-genesis 1811             strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
experimental-genesis 1812         printf("%s\n", strError.c_str());
experimental-genesis 1813         return false;
experimental-genesis 1814     }
experimental-genesis 1815     printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
experimental-genesis 1816 
experimental-genesis 1817     // Listen for incoming connections
experimental-genesis 1818     if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
experimental-genesis 1819     {
experimental-genesis 1820         strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
experimental-genesis 1821         printf("%s\n", strError.c_str());
experimental-genesis 1822         return false;
experimental-genesis 1823     }
experimental-genesis 1824 
experimental-genesis 1825     return true;
experimental-genesis 1826 }
experimental-genesis 1827 
experimental-genesis 1828 void StartNode(void* parg)
experimental-genesis 1829 {
experimental-genesis 1830     if (pnodeLocalHost == NULL)
experimental-genesis 1831         pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress("127.0.0.1", 0, false, nLocalServices));
experimental-genesis 1832 
experimental-genesis 1833 #ifdef WIN32
experimental-genesis 1834     // Get local host ip
experimental-genesis 1835     char pszHostName[1000] = "";
experimental-genesis 1836     if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
experimental-genesis 1837     {
experimental-genesis 1838         vector<CAddress> vaddr;
experimental-genesis 1839         if (Lookup(pszHostName, vaddr, nLocalServices, -1, true))
experimental-genesis 1840             BOOST_FOREACH (const CAddress &addr, vaddr)
experimental-genesis 1841                 if (addr.GetByte(3) != 127)
experimental-genesis 1842                 {
experimental-genesis 1843                     addrLocalHost = addr;
experimental-genesis 1844                     break;
experimental-genesis 1845                 }
experimental-genesis 1846     }
experimental-genesis 1847 #else
experimental-genesis 1848     // Get local host ip
experimental-genesis 1849     struct ifaddrs* myaddrs;
experimental-genesis 1850     if (getifaddrs(&myaddrs) == 0)
experimental-genesis 1851     {
experimental-genesis 1852         for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
experimental-genesis 1853         {
experimental-genesis 1854             if (ifa->ifa_addr == NULL) continue;
experimental-genesis 1855             if ((ifa->ifa_flags & IFF_UP) == 0) continue;
experimental-genesis 1856             if (strcmp(ifa->ifa_name, "lo") == 0) continue;
experimental-genesis 1857             if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
experimental-genesis 1858             char pszIP[100];
experimental-genesis 1859             if (ifa->ifa_addr->sa_family == AF_INET)
experimental-genesis 1860             {
experimental-genesis 1861                 struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
experimental-genesis 1862                 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
experimental-genesis 1863                     printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);
experimental-genesis 1864 
experimental-genesis 1865                 // Take the first IP that isn't loopback 127.x.x.x
experimental-genesis 1866                 CAddress addr(*(unsigned int*)&s4->sin_addr, GetListenPort(), nLocalServices);
experimental-genesis 1867                 if (addr.IsValid() && addr.GetByte(3) != 127)
experimental-genesis 1868                 {
experimental-genesis 1869                     addrLocalHost = addr;
experimental-genesis 1870                     break;
experimental-genesis 1871                 }
experimental-genesis 1872             }
experimental-genesis 1873             else if (ifa->ifa_addr->sa_family == AF_INET6)
experimental-genesis 1874             {
experimental-genesis 1875                 struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
experimental-genesis 1876                 if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
experimental-genesis 1877                     printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
experimental-genesis 1878             }
experimental-genesis 1879         }
experimental-genesis 1880         freeifaddrs(myaddrs);
experimental-genesis 1881     }
experimental-genesis 1882 #endif
experimental-genesis 1883     printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
experimental-genesis 1884 
experimental-genesis 1885     if (fUseProxy || mapArgs.count("-connect") || fNoListen)
experimental-genesis 1886     {
experimental-genesis 1887         // Proxies can't take incoming connections
experimental-genesis 1888         addrLocalHost.ip = CAddress("0.0.0.0").ip;
experimental-genesis 1889         printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
experimental-genesis 1890     }
experimental-genesis 1891     else
experimental-genesis 1892     {
experimental-genesis 1893         CreateThread(ThreadGetMyExternalIP, NULL);
experimental-genesis 1894     }
experimental-genesis 1895 
experimental-genesis 1896     //
experimental-genesis 1897     // Start threads
experimental-genesis 1898     //
experimental-genesis 1899 
experimental-genesis 1900     if (GetBoolArg("-nodnsseed"))
experimental-genesis 1901         printf("DNS seeding disabled\n");
experimental-genesis 1902     else
experimental-genesis 1903         if (!CreateThread(ThreadDNSAddressSeed, NULL))
experimental-genesis 1904             printf("Error: CreateThread(ThreadDNSAddressSeed) failed\n");
experimental-genesis 1905 
experimental-genesis 1906     // Map ports with UPnP
experimental-genesis 1907     if (fHaveUPnP)
experimental-genesis 1908         MapPort(fUseUPnP);
experimental-genesis 1909 
experimental-genesis 1910     // Get addresses from IRC and advertise ours
experimental-genesis 1911     if (!CreateThread(ThreadIRCSeed, NULL))
experimental-genesis 1912         printf("Error: CreateThread(ThreadIRCSeed) failed\n");
experimental-genesis 1913 
experimental-genesis 1914     // Send and receive from sockets, accept connections
experimental-genesis 1915     if (!CreateThread(ThreadSocketHandler, NULL))
experimental-genesis 1916         printf("Error: CreateThread(ThreadSocketHandler) failed\n");
experimental-genesis 1917 
experimental-genesis 1918     // Initiate outbound connections
experimental-genesis 1919     if (!CreateThread(ThreadOpenConnections, NULL))
experimental-genesis 1920         printf("Error: CreateThread(ThreadOpenConnections) failed\n");
experimental-genesis 1921 
experimental-genesis 1922     // Process messages
experimental-genesis 1923     if (!CreateThread(ThreadMessageHandler, NULL))
experimental-genesis 1924         printf("Error: CreateThread(ThreadMessageHandler) failed\n");
experimental-genesis 1925 
experimental-genesis 1926     // Generate coins in the background
experimental-genesis 1927     GenerateBitcoins(fGenerateBitcoins, pwalletMain);
experimental-genesis 1928 }
experimental-genesis 1929 
experimental-genesis 1930 bool StopNode()
experimental-genesis 1931 {
experimental-genesis 1932     printf("StopNode()\n");
experimental-genesis 1933     fShutdown = true;
experimental-genesis 1934     nTransactionsUpdated++;
experimental-genesis 1935     int64 nStart = GetTime();
experimental-genesis 1936     while (vnThreadsRunning[0] > 0 || vnThreadsRunning[1] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0 || vnThreadsRunning[4] > 0
experimental-genesis 1937 #ifdef USE_UPNP
experimental-genesis 1938         || vnThreadsRunning[5] > 0
experimental-genesis 1939 #endif
experimental-genesis 1940     )
experimental-genesis 1941     {
experimental-genesis 1942         if (GetTime() - nStart > 20)
experimental-genesis 1943             break;
experimental-genesis 1944         Sleep(20);
experimental-genesis 1945     }
experimental-genesis 1946     if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
experimental-genesis 1947     if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
experimental-genesis 1948     if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
experimental-genesis 1949     if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
experimental-genesis 1950     if (vnThreadsRunning[4] > 0) printf("ThreadRPCServer still running\n");
experimental-genesis 1951     if (fHaveUPnP && vnThreadsRunning[5] > 0) printf("ThreadMapPort still running\n");
experimental-genesis 1952     if (vnThreadsRunning[6] > 0) printf("ThreadDNSAddressSeed still running\n");
experimental-genesis 1953     while (vnThreadsRunning[2] > 0 || vnThreadsRunning[4] > 0)
experimental-genesis 1954         Sleep(20);
experimental-genesis 1955     Sleep(50);
experimental-genesis 1956 
experimental-genesis 1957     return true;
experimental-genesis 1958 }
experimental-genesis 1959 
experimental-genesis 1960 class CNetCleanup
experimental-genesis 1961 {
experimental-genesis 1962 public:
experimental-genesis 1963     CNetCleanup()
experimental-genesis 1964     {
experimental-genesis 1965     }
experimental-genesis 1966     ~CNetCleanup()
experimental-genesis 1967     {
experimental-genesis 1968         // Close sockets
experimental-genesis 1969         BOOST_FOREACH(CNode* pnode, vNodes)
experimental-genesis 1970             if (pnode->hSocket != INVALID_SOCKET)
experimental-genesis 1971                 closesocket(pnode->hSocket);
experimental-genesis 1972         if (hListenSocket != INVALID_SOCKET)
experimental-genesis 1973             if (closesocket(hListenSocket) == SOCKET_ERROR)
experimental-genesis 1974                 printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
experimental-genesis 1975 
experimental-genesis 1976 #ifdef WIN32
experimental-genesis 1977         // Shutdown Windows Sockets
experimental-genesis 1978         WSACleanup();
experimental-genesis 1979 #endif
experimental-genesis 1980     }
experimental-genesis 1981 }
experimental-genesis 1982 instance_of_cnetcleanup;