mirror of
https://github.com/dashpay/dash.git
synced 2024-12-27 21:12:48 +01:00
2064 lines
66 KiB
C++
2064 lines
66 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2012 The Bitcoin developers
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include "irc.h"
|
|
#include "db.h"
|
|
#include "net.h"
|
|
#include "init.h"
|
|
#include "addrman.h"
|
|
#include "ui_interface.h"
|
|
#include "script.h"
|
|
|
|
#ifdef WIN32
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#ifdef USE_UPNP
|
|
#include <miniupnpc/miniwget.h>
|
|
#include <miniupnpc/miniupnpc.h>
|
|
#include <miniupnpc/upnpcommands.h>
|
|
#include <miniupnpc/upnperrors.h>
|
|
#endif
|
|
|
|
using namespace std;
|
|
using namespace boost;
|
|
|
|
static const int MAX_OUTBOUND_CONNECTIONS = 8;
|
|
|
|
void ThreadMessageHandler2(void* parg);
|
|
void ThreadSocketHandler2(void* parg);
|
|
void ThreadOpenConnections2(void* parg);
|
|
void ThreadOpenAddedConnections2(void* parg);
|
|
#ifdef USE_UPNP
|
|
void ThreadMapPort2(void* parg);
|
|
#endif
|
|
void ThreadDNSAddressSeed2(void* parg);
|
|
bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound = NULL, const char *strDest = NULL, bool fOneShot = false);
|
|
|
|
|
|
struct LocalServiceInfo {
|
|
int nScore;
|
|
int nPort;
|
|
};
|
|
|
|
//
|
|
// Global state variables
|
|
//
|
|
bool fDiscover = true;
|
|
bool fUseUPnP = false;
|
|
uint64 nLocalServices = NODE_NETWORK;
|
|
static CCriticalSection cs_mapLocalHost;
|
|
static map<CNetAddr, LocalServiceInfo> mapLocalHost;
|
|
static bool vfReachable[NET_MAX] = {};
|
|
static bool vfLimited[NET_MAX] = {};
|
|
static CNode* pnodeLocalHost = NULL;
|
|
uint64 nLocalHostNonce = 0;
|
|
array<int, THREAD_MAX> vnThreadsRunning;
|
|
static std::vector<SOCKET> vhListenSocket;
|
|
CAddrMan addrman;
|
|
|
|
vector<CNode*> vNodes;
|
|
CCriticalSection cs_vNodes;
|
|
map<CInv, CDataStream> mapRelay;
|
|
deque<pair<int64, CInv> > vRelayExpiration;
|
|
CCriticalSection cs_mapRelay;
|
|
map<CInv, int64> mapAlreadyAskedFor;
|
|
|
|
static deque<string> vOneShots;
|
|
CCriticalSection cs_vOneShots;
|
|
|
|
set<CNetAddr> setservAddNodeAddresses;
|
|
CCriticalSection cs_setservAddNodeAddresses;
|
|
|
|
vector<std::string> vAddedNodes;
|
|
CCriticalSection cs_vAddedNodes;
|
|
|
|
static CSemaphore *semOutbound = NULL;
|
|
|
|
void AddOneShot(string strDest)
|
|
{
|
|
LOCK(cs_vOneShots);
|
|
vOneShots.push_back(strDest);
|
|
}
|
|
|
|
unsigned short GetListenPort()
|
|
{
|
|
return (unsigned short)(GetArg("-port", GetDefaultPort()));
|
|
}
|
|
|
|
void CNode::PushGetBlocks(CBlockIndex* pindexBegin, uint256 hashEnd)
|
|
{
|
|
// Filter out duplicate requests
|
|
if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd)
|
|
return;
|
|
pindexLastGetBlocksBegin = pindexBegin;
|
|
hashLastGetBlocksEnd = hashEnd;
|
|
|
|
PushMessage("getblocks", CBlockLocator(pindexBegin), hashEnd);
|
|
}
|
|
|
|
// find 'best' local address for a particular peer
|
|
bool GetLocal(CService& addr, const CNetAddr *paddrPeer)
|
|
{
|
|
if (fNoListen)
|
|
return false;
|
|
|
|
int nBestScore = -1;
|
|
int nBestReachability = -1;
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
for (map<CNetAddr, LocalServiceInfo>::iterator it = mapLocalHost.begin(); it != mapLocalHost.end(); it++)
|
|
{
|
|
int nScore = (*it).second.nScore;
|
|
int nReachability = (*it).first.GetReachabilityFrom(paddrPeer);
|
|
if (nReachability > nBestReachability || (nReachability == nBestReachability && nScore > nBestScore))
|
|
{
|
|
addr = CService((*it).first, (*it).second.nPort);
|
|
nBestReachability = nReachability;
|
|
nBestScore = nScore;
|
|
}
|
|
}
|
|
}
|
|
return nBestScore >= 0;
|
|
}
|
|
|
|
// get best local address for a particular peer as a CAddress
|
|
CAddress GetLocalAddress(const CNetAddr *paddrPeer)
|
|
{
|
|
CAddress ret(CService("0.0.0.0",0),0);
|
|
CService addr;
|
|
if (GetLocal(addr, paddrPeer))
|
|
{
|
|
ret = CAddress(addr);
|
|
ret.nServices = nLocalServices;
|
|
ret.nTime = GetAdjustedTime();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
bool RecvLine(SOCKET hSocket, string& strLine)
|
|
{
|
|
strLine = "";
|
|
loop
|
|
{
|
|
char c;
|
|
int nBytes = recv(hSocket, &c, 1, 0);
|
|
if (nBytes > 0)
|
|
{
|
|
if (c == '\n')
|
|
continue;
|
|
if (c == '\r')
|
|
return true;
|
|
strLine += c;
|
|
if (strLine.size() >= 9000)
|
|
return true;
|
|
}
|
|
else if (nBytes <= 0)
|
|
{
|
|
if (fShutdown)
|
|
return false;
|
|
if (nBytes < 0)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
if (nErr == WSAEMSGSIZE)
|
|
continue;
|
|
if (nErr == WSAEWOULDBLOCK || nErr == WSAEINTR || nErr == WSAEINPROGRESS)
|
|
{
|
|
Sleep(10);
|
|
continue;
|
|
}
|
|
}
|
|
if (!strLine.empty())
|
|
return true;
|
|
if (nBytes == 0)
|
|
{
|
|
// socket closed
|
|
printf("socket closed\n");
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
// socket error
|
|
int nErr = WSAGetLastError();
|
|
printf("recv failed: %d\n", nErr);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// used when scores of local addresses may have changed
|
|
// pushes better local address to peers
|
|
void static AdvertizeLocal()
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
{
|
|
if (pnode->fSuccessfullyConnected)
|
|
{
|
|
CAddress addrLocal = GetLocalAddress(&pnode->addr);
|
|
if (addrLocal.IsRoutable() && (CService)addrLocal != (CService)pnode->addrLocal)
|
|
{
|
|
pnode->PushAddress(addrLocal);
|
|
pnode->addrLocal = addrLocal;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SetReachable(enum Network net, bool fFlag)
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
vfReachable[net] = fFlag;
|
|
if (net == NET_IPV6 && fFlag)
|
|
vfReachable[NET_IPV4] = true;
|
|
}
|
|
|
|
// learn a new local address
|
|
bool AddLocal(const CService& addr, int nScore)
|
|
{
|
|
if (!addr.IsRoutable())
|
|
return false;
|
|
|
|
if (!fDiscover && nScore < LOCAL_MANUAL)
|
|
return false;
|
|
|
|
if (IsLimited(addr))
|
|
return false;
|
|
|
|
printf("AddLocal(%s,%i)\n", addr.ToString().c_str(), nScore);
|
|
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
bool fAlready = mapLocalHost.count(addr) > 0;
|
|
LocalServiceInfo &info = mapLocalHost[addr];
|
|
if (!fAlready || nScore >= info.nScore) {
|
|
info.nScore = nScore + (fAlready ? 1 : 0);
|
|
info.nPort = addr.GetPort();
|
|
}
|
|
SetReachable(addr.GetNetwork());
|
|
}
|
|
|
|
AdvertizeLocal();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool AddLocal(const CNetAddr &addr, int nScore)
|
|
{
|
|
return AddLocal(CService(addr, GetListenPort()), nScore);
|
|
}
|
|
|
|
/** Make a particular network entirely off-limits (no automatic connects to it) */
|
|
void SetLimited(enum Network net, bool fLimited)
|
|
{
|
|
if (net == NET_UNROUTABLE)
|
|
return;
|
|
LOCK(cs_mapLocalHost);
|
|
vfLimited[net] = fLimited;
|
|
}
|
|
|
|
bool IsLimited(enum Network net)
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
return vfLimited[net];
|
|
}
|
|
|
|
bool IsLimited(const CNetAddr &addr)
|
|
{
|
|
return IsLimited(addr.GetNetwork());
|
|
}
|
|
|
|
/** vote for a local address */
|
|
bool SeenLocal(const CService& addr)
|
|
{
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
if (mapLocalHost.count(addr) == 0)
|
|
return false;
|
|
mapLocalHost[addr].nScore++;
|
|
}
|
|
|
|
AdvertizeLocal();
|
|
|
|
return true;
|
|
}
|
|
|
|
/** check whether a given address is potentially local */
|
|
bool IsLocal(const CService& addr)
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
return mapLocalHost.count(addr) > 0;
|
|
}
|
|
|
|
/** check whether a given address is in a network we can probably connect to */
|
|
bool IsReachable(const CNetAddr& addr)
|
|
{
|
|
LOCK(cs_mapLocalHost);
|
|
enum Network net = addr.GetNetwork();
|
|
return vfReachable[net] && !vfLimited[net];
|
|
}
|
|
|
|
bool GetMyExternalIP2(const CService& addrConnect, const char* pszGet, const char* pszKeyword, CNetAddr& ipRet)
|
|
{
|
|
SOCKET hSocket;
|
|
if (!ConnectSocket(addrConnect, hSocket))
|
|
return error("GetMyExternalIP() : connection to %s failed", addrConnect.ToString().c_str());
|
|
|
|
send(hSocket, pszGet, strlen(pszGet), MSG_NOSIGNAL);
|
|
|
|
string strLine;
|
|
while (RecvLine(hSocket, strLine))
|
|
{
|
|
if (strLine.empty()) // HTTP response is separated from headers by blank line
|
|
{
|
|
loop
|
|
{
|
|
if (!RecvLine(hSocket, strLine))
|
|
{
|
|
closesocket(hSocket);
|
|
return false;
|
|
}
|
|
if (pszKeyword == NULL)
|
|
break;
|
|
if (strLine.find(pszKeyword) != string::npos)
|
|
{
|
|
strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
|
|
break;
|
|
}
|
|
}
|
|
closesocket(hSocket);
|
|
if (strLine.find("<") != string::npos)
|
|
strLine = strLine.substr(0, strLine.find("<"));
|
|
strLine = strLine.substr(strspn(strLine.c_str(), " \t\n\r"));
|
|
while (strLine.size() > 0 && isspace(strLine[strLine.size()-1]))
|
|
strLine.resize(strLine.size()-1);
|
|
CService addr(strLine,0,true);
|
|
printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
|
|
if (!addr.IsValid() || !addr.IsRoutable())
|
|
return false;
|
|
ipRet.SetIP(addr);
|
|
return true;
|
|
}
|
|
}
|
|
closesocket(hSocket);
|
|
return error("GetMyExternalIP() : connection closed");
|
|
}
|
|
|
|
// We now get our external IP from the IRC server first and only use this as a backup
|
|
bool GetMyExternalIP(CNetAddr& ipRet)
|
|
{
|
|
CService addrConnect;
|
|
const char* pszGet;
|
|
const char* pszKeyword;
|
|
|
|
for (int nLookup = 0; nLookup <= 1; nLookup++)
|
|
for (int nHost = 1; nHost <= 2; nHost++)
|
|
{
|
|
// We should be phasing out our use of sites like these. If we need
|
|
// replacements, we should ask for volunteers to put this simple
|
|
// php file on their web server that prints the client IP:
|
|
// <?php echo $_SERVER["REMOTE_ADDR"]; ?>
|
|
if (nHost == 1)
|
|
{
|
|
addrConnect = CService("91.198.22.70",80); // checkip.dyndns.org
|
|
|
|
if (nLookup == 1)
|
|
{
|
|
CService addrIP("checkip.dyndns.org", 80, true);
|
|
if (addrIP.IsValid())
|
|
addrConnect = addrIP;
|
|
}
|
|
|
|
pszGet = "GET / HTTP/1.1\r\n"
|
|
"Host: checkip.dyndns.org\r\n"
|
|
"User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
|
|
"Connection: close\r\n"
|
|
"\r\n";
|
|
|
|
pszKeyword = "Address:";
|
|
}
|
|
else if (nHost == 2)
|
|
{
|
|
addrConnect = CService("74.208.43.192", 80); // www.showmyip.com
|
|
|
|
if (nLookup == 1)
|
|
{
|
|
CService addrIP("www.showmyip.com", 80, true);
|
|
if (addrIP.IsValid())
|
|
addrConnect = addrIP;
|
|
}
|
|
|
|
pszGet = "GET /simple/ HTTP/1.1\r\n"
|
|
"Host: www.showmyip.com\r\n"
|
|
"User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n"
|
|
"Connection: close\r\n"
|
|
"\r\n";
|
|
|
|
pszKeyword = NULL; // Returns just IP address
|
|
}
|
|
|
|
if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void ThreadGetMyExternalIP(void* parg)
|
|
{
|
|
// Make this thread recognisable as the external IP detection thread
|
|
RenameThread("bitcoin-ext-ip");
|
|
|
|
CNetAddr addrLocalHost;
|
|
if (GetMyExternalIP(addrLocalHost))
|
|
{
|
|
printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
|
|
AddLocal(addrLocalHost, LOCAL_HTTP);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void AddressCurrentlyConnected(const CService& addr)
|
|
{
|
|
addrman.Connected(addr);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CNode* FindNode(const CNetAddr& ip)
|
|
{
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
if ((CNetAddr)pnode->addr == ip)
|
|
return (pnode);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
CNode* FindNode(std::string addrName)
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
if (pnode->addrName == addrName)
|
|
return (pnode);
|
|
return NULL;
|
|
}
|
|
|
|
CNode* FindNode(const CService& addr)
|
|
{
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
if ((CService)pnode->addr == addr)
|
|
return (pnode);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
CNode* ConnectNode(CAddress addrConnect, const char *pszDest, int64 nTimeout)
|
|
{
|
|
if (pszDest == NULL) {
|
|
if (IsLocal(addrConnect))
|
|
return NULL;
|
|
|
|
// Look for an existing connection
|
|
CNode* pnode = FindNode((CService)addrConnect);
|
|
if (pnode)
|
|
{
|
|
if (nTimeout != 0)
|
|
pnode->AddRef(nTimeout);
|
|
else
|
|
pnode->AddRef();
|
|
return pnode;
|
|
}
|
|
}
|
|
|
|
|
|
/// debug print
|
|
printf("trying connection %s lastseen=%.1fhrs\n",
|
|
pszDest ? pszDest : addrConnect.ToString().c_str(),
|
|
pszDest ? 0 : (double)(GetAdjustedTime() - addrConnect.nTime)/3600.0);
|
|
|
|
// Connect
|
|
SOCKET hSocket;
|
|
if (pszDest ? ConnectSocketByName(addrConnect, hSocket, pszDest, GetDefaultPort()) : ConnectSocket(addrConnect, hSocket))
|
|
{
|
|
addrman.Attempt(addrConnect);
|
|
|
|
/// debug print
|
|
printf("connected %s\n", pszDest ? pszDest : addrConnect.ToString().c_str());
|
|
|
|
// Set to non-blocking
|
|
#ifdef WIN32
|
|
u_long nOne = 1;
|
|
if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
|
|
printf("ConnectSocket() : ioctlsocket non-blocking setting failed, error %d\n", WSAGetLastError());
|
|
#else
|
|
if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
|
|
printf("ConnectSocket() : fcntl non-blocking setting failed, error %d\n", errno);
|
|
#endif
|
|
|
|
// Add node
|
|
CNode* pnode = new CNode(hSocket, addrConnect, pszDest ? pszDest : "", false);
|
|
if (nTimeout != 0)
|
|
pnode->AddRef(nTimeout);
|
|
else
|
|
pnode->AddRef();
|
|
|
|
{
|
|
LOCK(cs_vNodes);
|
|
vNodes.push_back(pnode);
|
|
}
|
|
|
|
pnode->nTimeConnected = GetTime();
|
|
return pnode;
|
|
}
|
|
else
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
void CNode::CloseSocketDisconnect()
|
|
{
|
|
fDisconnect = true;
|
|
if (hSocket != INVALID_SOCKET)
|
|
{
|
|
printf("disconnecting node %s\n", addrName.c_str());
|
|
closesocket(hSocket);
|
|
hSocket = INVALID_SOCKET;
|
|
vRecv.clear();
|
|
}
|
|
}
|
|
|
|
void CNode::Cleanup()
|
|
{
|
|
}
|
|
|
|
|
|
void CNode::PushVersion()
|
|
{
|
|
/// when NTP implemented, change to just nTime = GetAdjustedTime()
|
|
int64 nTime = (fInbound ? GetAdjustedTime() : GetTime());
|
|
CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService("0.0.0.0",0)));
|
|
CAddress addrMe = GetLocalAddress(&addr);
|
|
RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
|
|
printf("send version message: version %d, blocks=%d, us=%s, them=%s, peer=%s\n", PROTOCOL_VERSION, nBestHeight, addrMe.ToString().c_str(), addrYou.ToString().c_str(), addr.ToString().c_str());
|
|
PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe,
|
|
nLocalHostNonce, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<string>()), nBestHeight);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
std::map<CNetAddr, int64> CNode::setBanned;
|
|
CCriticalSection CNode::cs_setBanned;
|
|
|
|
void CNode::ClearBanned()
|
|
{
|
|
setBanned.clear();
|
|
}
|
|
|
|
bool CNode::IsBanned(CNetAddr ip)
|
|
{
|
|
bool fResult = false;
|
|
{
|
|
LOCK(cs_setBanned);
|
|
std::map<CNetAddr, int64>::iterator i = setBanned.find(ip);
|
|
if (i != setBanned.end())
|
|
{
|
|
int64 t = (*i).second;
|
|
if (GetTime() < t)
|
|
fResult = true;
|
|
}
|
|
}
|
|
return fResult;
|
|
}
|
|
|
|
bool CNode::Misbehaving(int howmuch)
|
|
{
|
|
if (addr.IsLocal())
|
|
{
|
|
printf("Warning: Local node %s misbehaving (delta: %d)!\n", addrName.c_str(), howmuch);
|
|
return false;
|
|
}
|
|
|
|
nMisbehavior += howmuch;
|
|
if (nMisbehavior >= GetArg("-banscore", 100))
|
|
{
|
|
int64 banTime = GetTime()+GetArg("-bantime", 60*60*24); // Default 24-hour ban
|
|
printf("Misbehaving: %s (%d -> %d) DISCONNECTING\n", addr.ToString().c_str(), nMisbehavior-howmuch, nMisbehavior);
|
|
{
|
|
LOCK(cs_setBanned);
|
|
if (setBanned[addr] < banTime)
|
|
setBanned[addr] = banTime;
|
|
}
|
|
CloseSocketDisconnect();
|
|
return true;
|
|
} else
|
|
printf("Misbehaving: %s (%d -> %d)\n", addr.ToString().c_str(), nMisbehavior-howmuch, nMisbehavior);
|
|
return false;
|
|
}
|
|
|
|
#undef X
|
|
#define X(name) stats.name = name
|
|
void CNode::copyStats(CNodeStats &stats)
|
|
{
|
|
X(nServices);
|
|
X(nLastSend);
|
|
X(nLastRecv);
|
|
X(nTimeConnected);
|
|
X(addrName);
|
|
X(nVersion);
|
|
X(strSubVer);
|
|
X(fInbound);
|
|
X(nReleaseTime);
|
|
X(nStartingHeight);
|
|
X(nMisbehavior);
|
|
}
|
|
#undef X
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void ThreadSocketHandler(void* parg)
|
|
{
|
|
// Make this thread recognisable as the networking thread
|
|
RenameThread("bitcoin-net");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]++;
|
|
ThreadSocketHandler2(parg);
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]--;
|
|
PrintException(&e, "ThreadSocketHandler()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]--;
|
|
throw; // support pthread_cancel()
|
|
}
|
|
printf("ThreadSocketHandler exited\n");
|
|
}
|
|
|
|
void ThreadSocketHandler2(void* parg)
|
|
{
|
|
printf("ThreadSocketHandler started\n");
|
|
list<CNode*> vNodesDisconnected;
|
|
unsigned int nPrevNodeCount = 0;
|
|
|
|
loop
|
|
{
|
|
//
|
|
// Disconnect nodes
|
|
//
|
|
{
|
|
LOCK(cs_vNodes);
|
|
// Disconnect unused nodes
|
|
vector<CNode*> vNodesCopy = vNodes;
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
{
|
|
if (pnode->fDisconnect ||
|
|
(pnode->GetRefCount() <= 0 && pnode->vRecv.empty() && pnode->vSend.empty()))
|
|
{
|
|
// remove from vNodes
|
|
vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
|
|
|
|
// release outbound grant (if any)
|
|
pnode->grantOutbound.Release();
|
|
|
|
// close socket and cleanup
|
|
pnode->CloseSocketDisconnect();
|
|
pnode->Cleanup();
|
|
|
|
// hold in disconnected pool until all refs are released
|
|
pnode->nReleaseTime = max(pnode->nReleaseTime, GetTime() + 15 * 60);
|
|
if (pnode->fNetworkNode || pnode->fInbound)
|
|
pnode->Release();
|
|
vNodesDisconnected.push_back(pnode);
|
|
}
|
|
}
|
|
|
|
// Delete disconnected nodes
|
|
list<CNode*> vNodesDisconnectedCopy = vNodesDisconnected;
|
|
BOOST_FOREACH(CNode* pnode, vNodesDisconnectedCopy)
|
|
{
|
|
// wait until threads are done using it
|
|
if (pnode->GetRefCount() <= 0)
|
|
{
|
|
bool fDelete = false;
|
|
{
|
|
TRY_LOCK(pnode->cs_vSend, lockSend);
|
|
if (lockSend)
|
|
{
|
|
TRY_LOCK(pnode->cs_vRecv, lockRecv);
|
|
if (lockRecv)
|
|
{
|
|
TRY_LOCK(pnode->cs_inventory, lockInv);
|
|
if (lockInv)
|
|
fDelete = true;
|
|
}
|
|
}
|
|
}
|
|
if (fDelete)
|
|
{
|
|
vNodesDisconnected.remove(pnode);
|
|
delete pnode;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (vNodes.size() != nPrevNodeCount)
|
|
{
|
|
nPrevNodeCount = vNodes.size();
|
|
uiInterface.NotifyNumConnectionsChanged(vNodes.size());
|
|
}
|
|
|
|
|
|
//
|
|
// Find which sockets have data to receive
|
|
//
|
|
struct timeval timeout;
|
|
timeout.tv_sec = 0;
|
|
timeout.tv_usec = 50000; // frequency to poll pnode->vSend
|
|
|
|
fd_set fdsetRecv;
|
|
fd_set fdsetSend;
|
|
fd_set fdsetError;
|
|
FD_ZERO(&fdsetRecv);
|
|
FD_ZERO(&fdsetSend);
|
|
FD_ZERO(&fdsetError);
|
|
SOCKET hSocketMax = 0;
|
|
bool have_fds = false;
|
|
|
|
BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket) {
|
|
FD_SET(hListenSocket, &fdsetRecv);
|
|
hSocketMax = max(hSocketMax, hListenSocket);
|
|
have_fds = true;
|
|
}
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
{
|
|
if (pnode->hSocket == INVALID_SOCKET)
|
|
continue;
|
|
FD_SET(pnode->hSocket, &fdsetRecv);
|
|
FD_SET(pnode->hSocket, &fdsetError);
|
|
hSocketMax = max(hSocketMax, pnode->hSocket);
|
|
have_fds = true;
|
|
{
|
|
TRY_LOCK(pnode->cs_vSend, lockSend);
|
|
if (lockSend && !pnode->vSend.empty())
|
|
FD_SET(pnode->hSocket, &fdsetSend);
|
|
}
|
|
}
|
|
}
|
|
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]--;
|
|
int nSelect = select(have_fds ? hSocketMax + 1 : 0,
|
|
&fdsetRecv, &fdsetSend, &fdsetError, &timeout);
|
|
vnThreadsRunning[THREAD_SOCKETHANDLER]++;
|
|
if (fShutdown)
|
|
return;
|
|
if (nSelect == SOCKET_ERROR)
|
|
{
|
|
if (have_fds)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
printf("socket select error %d\n", nErr);
|
|
for (unsigned int i = 0; i <= hSocketMax; i++)
|
|
FD_SET(i, &fdsetRecv);
|
|
}
|
|
FD_ZERO(&fdsetSend);
|
|
FD_ZERO(&fdsetError);
|
|
Sleep(timeout.tv_usec/1000);
|
|
}
|
|
|
|
|
|
//
|
|
// Accept new connections
|
|
//
|
|
BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
|
|
if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
|
|
{
|
|
#ifdef USE_IPV6
|
|
struct sockaddr_storage sockaddr;
|
|
#else
|
|
struct sockaddr sockaddr;
|
|
#endif
|
|
socklen_t len = sizeof(sockaddr);
|
|
SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
|
|
CAddress addr;
|
|
int nInbound = 0;
|
|
|
|
if (hSocket != INVALID_SOCKET)
|
|
if (!addr.SetSockAddr((const struct sockaddr*)&sockaddr))
|
|
printf("Warning: Unknown socket family\n");
|
|
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
if (pnode->fInbound)
|
|
nInbound++;
|
|
}
|
|
|
|
if (hSocket == INVALID_SOCKET)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
if (nErr != WSAEWOULDBLOCK)
|
|
printf("socket error accept failed: %d\n", nErr);
|
|
}
|
|
else if (nInbound >= GetArg("-maxconnections", 125) - MAX_OUTBOUND_CONNECTIONS)
|
|
{
|
|
{
|
|
LOCK(cs_setservAddNodeAddresses);
|
|
if (!setservAddNodeAddresses.count(addr))
|
|
closesocket(hSocket);
|
|
}
|
|
}
|
|
else if (CNode::IsBanned(addr))
|
|
{
|
|
printf("connection from %s dropped (banned)\n", addr.ToString().c_str());
|
|
closesocket(hSocket);
|
|
}
|
|
else
|
|
{
|
|
printf("accepted connection %s\n", addr.ToString().c_str());
|
|
CNode* pnode = new CNode(hSocket, addr, "", true);
|
|
pnode->AddRef();
|
|
{
|
|
LOCK(cs_vNodes);
|
|
vNodes.push_back(pnode);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Service each socket
|
|
//
|
|
vector<CNode*> vNodesCopy;
|
|
{
|
|
LOCK(cs_vNodes);
|
|
vNodesCopy = vNodes;
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
pnode->AddRef();
|
|
}
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
{
|
|
if (fShutdown)
|
|
return;
|
|
|
|
//
|
|
// Receive
|
|
//
|
|
if (pnode->hSocket == INVALID_SOCKET)
|
|
continue;
|
|
if (FD_ISSET(pnode->hSocket, &fdsetRecv) || FD_ISSET(pnode->hSocket, &fdsetError))
|
|
{
|
|
TRY_LOCK(pnode->cs_vRecv, lockRecv);
|
|
if (lockRecv)
|
|
{
|
|
CDataStream& vRecv = pnode->vRecv;
|
|
unsigned int nPos = vRecv.size();
|
|
|
|
if (nPos > ReceiveBufferSize()) {
|
|
if (!pnode->fDisconnect)
|
|
printf("socket recv flood control disconnect (%"PRIszu" bytes)\n", vRecv.size());
|
|
pnode->CloseSocketDisconnect();
|
|
}
|
|
else {
|
|
// typical socket buffer is 8K-64K
|
|
char pchBuf[0x10000];
|
|
int nBytes = recv(pnode->hSocket, pchBuf, sizeof(pchBuf), MSG_DONTWAIT);
|
|
if (nBytes > 0)
|
|
{
|
|
vRecv.resize(nPos + nBytes);
|
|
memcpy(&vRecv[nPos], pchBuf, nBytes);
|
|
pnode->nLastRecv = GetTime();
|
|
}
|
|
else if (nBytes == 0)
|
|
{
|
|
// socket closed gracefully
|
|
if (!pnode->fDisconnect)
|
|
printf("socket closed\n");
|
|
pnode->CloseSocketDisconnect();
|
|
}
|
|
else if (nBytes < 0)
|
|
{
|
|
// error
|
|
int nErr = WSAGetLastError();
|
|
if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
|
|
{
|
|
if (!pnode->fDisconnect)
|
|
printf("socket recv error %d\n", nErr);
|
|
pnode->CloseSocketDisconnect();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Send
|
|
//
|
|
if (pnode->hSocket == INVALID_SOCKET)
|
|
continue;
|
|
if (FD_ISSET(pnode->hSocket, &fdsetSend))
|
|
{
|
|
TRY_LOCK(pnode->cs_vSend, lockSend);
|
|
if (lockSend)
|
|
{
|
|
CDataStream& vSend = pnode->vSend;
|
|
if (!vSend.empty())
|
|
{
|
|
int nBytes = send(pnode->hSocket, &vSend[0], vSend.size(), MSG_NOSIGNAL | MSG_DONTWAIT);
|
|
if (nBytes > 0)
|
|
{
|
|
vSend.erase(vSend.begin(), vSend.begin() + nBytes);
|
|
pnode->nLastSend = GetTime();
|
|
}
|
|
else if (nBytes < 0)
|
|
{
|
|
// error
|
|
int nErr = WSAGetLastError();
|
|
if (nErr != WSAEWOULDBLOCK && nErr != WSAEMSGSIZE && nErr != WSAEINTR && nErr != WSAEINPROGRESS)
|
|
{
|
|
printf("socket send error %d\n", nErr);
|
|
pnode->CloseSocketDisconnect();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Inactivity checking
|
|
//
|
|
if (pnode->vSend.empty())
|
|
pnode->nLastSendEmpty = GetTime();
|
|
if (GetTime() - pnode->nTimeConnected > 60)
|
|
{
|
|
if (pnode->nLastRecv == 0 || pnode->nLastSend == 0)
|
|
{
|
|
printf("socket no message in first 60 seconds, %d %d\n", pnode->nLastRecv != 0, pnode->nLastSend != 0);
|
|
pnode->fDisconnect = true;
|
|
}
|
|
else if (GetTime() - pnode->nLastSend > 90*60 && GetTime() - pnode->nLastSendEmpty > 90*60)
|
|
{
|
|
printf("socket not sending\n");
|
|
pnode->fDisconnect = true;
|
|
}
|
|
else if (GetTime() - pnode->nLastRecv > 90*60)
|
|
{
|
|
printf("socket inactivity timeout\n");
|
|
pnode->fDisconnect = true;
|
|
}
|
|
}
|
|
}
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
pnode->Release();
|
|
}
|
|
|
|
Sleep(10);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef USE_UPNP
|
|
void ThreadMapPort(void* parg)
|
|
{
|
|
// Make this thread recognisable as the UPnP thread
|
|
RenameThread("bitcoin-UPnP");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_UPNP]++;
|
|
ThreadMapPort2(parg);
|
|
vnThreadsRunning[THREAD_UPNP]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_UPNP]--;
|
|
PrintException(&e, "ThreadMapPort()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_UPNP]--;
|
|
PrintException(NULL, "ThreadMapPort()");
|
|
}
|
|
printf("ThreadMapPort exited\n");
|
|
}
|
|
|
|
void ThreadMapPort2(void* parg)
|
|
{
|
|
printf("ThreadMapPort started\n");
|
|
|
|
std::string port = strprintf("%u", GetListenPort());
|
|
const char * multicastif = 0;
|
|
const char * minissdpdpath = 0;
|
|
struct UPNPDev * devlist = 0;
|
|
char lanaddr[64];
|
|
|
|
#ifndef UPNPDISCOVER_SUCCESS
|
|
/* miniupnpc 1.5 */
|
|
devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0);
|
|
#else
|
|
/* miniupnpc 1.6 */
|
|
int error = 0;
|
|
devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
|
|
#endif
|
|
|
|
struct UPNPUrls urls;
|
|
struct IGDdatas data;
|
|
int r;
|
|
|
|
r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
|
|
if (r == 1)
|
|
{
|
|
if (fDiscover) {
|
|
char externalIPAddress[40];
|
|
r = UPNP_GetExternalIPAddress(urls.controlURL, data.first.servicetype, externalIPAddress);
|
|
if(r != UPNPCOMMAND_SUCCESS)
|
|
printf("UPnP: GetExternalIPAddress() returned %d\n", r);
|
|
else
|
|
{
|
|
if(externalIPAddress[0])
|
|
{
|
|
printf("UPnP: ExternalIPAddress = %s\n", externalIPAddress);
|
|
AddLocal(CNetAddr(externalIPAddress), LOCAL_UPNP);
|
|
}
|
|
else
|
|
printf("UPnP: GetExternalIPAddress failed.\n");
|
|
}
|
|
}
|
|
|
|
string strDesc = "Bitcoin " + FormatFullVersion();
|
|
#ifndef UPNPDISCOVER_SUCCESS
|
|
/* miniupnpc 1.5 */
|
|
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
|
|
port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0);
|
|
#else
|
|
/* miniupnpc 1.6 */
|
|
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
|
|
port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0, "0");
|
|
#endif
|
|
|
|
if(r!=UPNPCOMMAND_SUCCESS)
|
|
printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
|
|
port.c_str(), port.c_str(), lanaddr, r, strupnperror(r));
|
|
else
|
|
printf("UPnP Port Mapping successful.\n");
|
|
int i = 1;
|
|
loop {
|
|
if (fShutdown || !fUseUPnP)
|
|
{
|
|
r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port.c_str(), "TCP", 0);
|
|
printf("UPNP_DeletePortMapping() returned : %d\n", r);
|
|
freeUPNPDevlist(devlist); devlist = 0;
|
|
FreeUPNPUrls(&urls);
|
|
return;
|
|
}
|
|
if (i % 600 == 0) // Refresh every 20 minutes
|
|
{
|
|
#ifndef UPNPDISCOVER_SUCCESS
|
|
/* miniupnpc 1.5 */
|
|
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
|
|
port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0);
|
|
#else
|
|
/* miniupnpc 1.6 */
|
|
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
|
|
port.c_str(), port.c_str(), lanaddr, strDesc.c_str(), "TCP", 0, "0");
|
|
#endif
|
|
|
|
if(r!=UPNPCOMMAND_SUCCESS)
|
|
printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
|
|
port.c_str(), port.c_str(), lanaddr, r, strupnperror(r));
|
|
else
|
|
printf("UPnP Port Mapping successful.\n");;
|
|
}
|
|
Sleep(2000);
|
|
i++;
|
|
}
|
|
} else {
|
|
printf("No valid UPnP IGDs found\n");
|
|
freeUPNPDevlist(devlist); devlist = 0;
|
|
if (r != 0)
|
|
FreeUPNPUrls(&urls);
|
|
loop {
|
|
if (fShutdown || !fUseUPnP)
|
|
return;
|
|
Sleep(2000);
|
|
}
|
|
}
|
|
}
|
|
|
|
void MapPort()
|
|
{
|
|
if (fUseUPnP && vnThreadsRunning[THREAD_UPNP] < 1)
|
|
{
|
|
if (!NewThread(ThreadMapPort, NULL))
|
|
printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
|
|
}
|
|
}
|
|
#else
|
|
void MapPort()
|
|
{
|
|
// Intentionally left blank.
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// DNS seeds
|
|
// Each pair gives a source name and a seed name.
|
|
// The first name is used as information source for addrman.
|
|
// The second name should resolve to a list of seed addresses.
|
|
static const char *strDNSSeed[][2] = {
|
|
{"bitcoin.sipa.be", "seed.bitcoin.sipa.be"},
|
|
{"bluematt.me", "dnsseed.bluematt.me"},
|
|
{"dashjr.org", "dnsseed.bitcoin.dashjr.org"},
|
|
{"xf2.org", "bitseed.xf2.org"},
|
|
};
|
|
|
|
void ThreadDNSAddressSeed(void* parg)
|
|
{
|
|
// Make this thread recognisable as the DNS seeding thread
|
|
RenameThread("bitcoin-dnsseed");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_DNSSEED]++;
|
|
ThreadDNSAddressSeed2(parg);
|
|
vnThreadsRunning[THREAD_DNSSEED]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_DNSSEED]--;
|
|
PrintException(&e, "ThreadDNSAddressSeed()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_DNSSEED]--;
|
|
throw; // support pthread_cancel()
|
|
}
|
|
printf("ThreadDNSAddressSeed exited\n");
|
|
}
|
|
|
|
void ThreadDNSAddressSeed2(void* parg)
|
|
{
|
|
printf("ThreadDNSAddressSeed started\n");
|
|
int found = 0;
|
|
|
|
if (!fTestNet)
|
|
{
|
|
printf("Loading addresses from DNS seeds (could take a while)\n");
|
|
|
|
for (unsigned int seed_idx = 0; seed_idx < ARRAYLEN(strDNSSeed); seed_idx++) {
|
|
if (HaveNameProxy()) {
|
|
AddOneShot(strDNSSeed[seed_idx][1]);
|
|
} else {
|
|
vector<CNetAddr> vaddr;
|
|
vector<CAddress> vAdd;
|
|
if (LookupHost(strDNSSeed[seed_idx][1], vaddr))
|
|
{
|
|
BOOST_FOREACH(CNetAddr& ip, vaddr)
|
|
{
|
|
int nOneDay = 24*3600;
|
|
CAddress addr = CAddress(CService(ip, GetDefaultPort()));
|
|
addr.nTime = GetTime() - 3*nOneDay - GetRand(4*nOneDay); // use a random age between 3 and 7 days old
|
|
vAdd.push_back(addr);
|
|
found++;
|
|
}
|
|
}
|
|
addrman.Add(vAdd, CNetAddr(strDNSSeed[seed_idx][0], true));
|
|
}
|
|
}
|
|
}
|
|
|
|
printf("%d addresses found from DNS seeds\n", found);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
unsigned int pnSeed[] =
|
|
{
|
|
0x959bd347, 0xf8de42b2, 0x73bc0518, 0xea6edc50, 0x21b00a4d, 0xc725b43d, 0xd665464d, 0x1a2a770e,
|
|
0x27c93946, 0x65b2fa46, 0xb80ae255, 0x66b3b446, 0xb1877a3e, 0x6ee89e3e, 0xc3175b40, 0x2a01a83c,
|
|
0x95b1363a, 0xa079ad3d, 0xe6ca801f, 0x027f4f4a, 0x34f7f03a, 0xf790f04a, 0x16ca801f, 0x2f4d5e40,
|
|
0x3a4d5e40, 0xc43a322e, 0xc8159753, 0x14d4724c, 0x7919a118, 0xe0bdb34e, 0x68a16b2e, 0xff64b44d,
|
|
0x6099115b, 0x9b57b05b, 0x7bd1b4ad, 0xdf95944f, 0x29d2b73d, 0xafa8db79, 0xe247ba41, 0x24078348,
|
|
0xf722f03c, 0x33567ebc, 0xace64ed4, 0x984d3932, 0xb5f34e55, 0x27b7024d, 0x94579247, 0x8894042e,
|
|
0x9357d34c, 0x1063c24b, 0xcaa228b1, 0xa3c5a8b2, 0x5dc64857, 0xa2c23643, 0xa8369a54, 0x31203077,
|
|
0x00707c5c, 0x09fc0b3a, 0x272e9e2e, 0xf80f043e, 0x9449ca3e, 0x5512c33e, 0xd106b555, 0xe8024157,
|
|
0xe288ec29, 0xc79c5461, 0xafb63932, 0xdb02ab4b, 0x0e512777, 0x8a145a4c, 0xb201ff4f, 0x5e09314b,
|
|
0xcd9bfbcd, 0x1c023765, 0x4394e75c, 0xa728bd4d, 0x65331552, 0xa98420b1, 0x89ecf559, 0x6e80801f,
|
|
0xf404f118, 0xefd62b51, 0x05918346, 0x9b186d5f, 0xacabab46, 0xf912e255, 0xc188ea62, 0xcc55734e,
|
|
0xc668064d, 0xd77a4558, 0x46201c55, 0xf17dfc80, 0xf7142f2e, 0x87bfb718, 0x8aa54fb2, 0xc451d518,
|
|
0xc4ae8831, 0x8dd44d55, 0x5bbd206c, 0x64536b5d, 0x5c667e60, 0x3b064242, 0xfe963a42, 0xa28e6dc8,
|
|
0xe8a9604a, 0xc989464e, 0xd124a659, 0x50065140, 0xa44dfe5e, 0x1079e655, 0x3fb986d5, 0x47895b18,
|
|
0x7d3ce4ad, 0x4561ba50, 0x296eec62, 0x255b41ad, 0xaed35ec9, 0x55556f12, 0xc7d3154d, 0x3297b65d,
|
|
0x8930121f, 0xabf42e4e, 0x4a29e044, 0x1212685d, 0x676c1e40, 0xce009744, 0x383a8948, 0xa2dbd0ad,
|
|
0xecc2564d, 0x07dbc252, 0x887ee24b, 0x5171644c, 0x6bb798c1, 0x847f495d, 0x4cbb7145, 0x3bb81c32,
|
|
0x45eb262e, 0xc8015a4e, 0x250a361b, 0xf694f946, 0xd64a183e, 0xd4f1dd59, 0x8f20ffd4, 0x51d9e55c,
|
|
0x09521763, 0x5e02002e, 0x32c8074d, 0xe685762e, 0x8290b0bc, 0x762a922e, 0xfc5ee754, 0x83a24829,
|
|
0x775b224d, 0x6295bb4d, 0x38ec0555, 0xbffbba50, 0xe5560260, 0x86b16a7c, 0xd372234e, 0x49a3c24b,
|
|
0x2f6a171f, 0x4d75ed60, 0xae94115b, 0xcb543744, 0x63080c59, 0x3f9c724c, 0xc977ce18, 0x532efb18,
|
|
0x69dc3b2e, 0x5f94d929, 0x1732bb4d, 0x9c814b4d, 0xe6b3762e, 0xc024f662, 0x8face35b, 0x6b5b044d,
|
|
0x798c7b57, 0x79a6b44c, 0x067d3057, 0xf9e94e5f, 0x91cbe15b, 0x71405eb2, 0x2662234e, 0xcbcc4a6d,
|
|
0xbf69d54b, 0xa79b4e55, 0xec6d3e51, 0x7c0b3c02, 0x60f83653, 0x24c1e15c, 0x1110b62e, 0x10350f59,
|
|
0xa56f1d55, 0x3509e7a9, 0xeb128354, 0x14268e2e, 0x934e28bc, 0x8e32692e, 0x8331a21f, 0x3e633932,
|
|
0xc812b12e, 0xc684bf2e, 0x80112d2e, 0xe0ddc96c, 0xc630ca4a, 0x5c09b3b2, 0x0b580518, 0xc8e9d54b,
|
|
0xd169aa43, 0x17d0d655, 0x1d029963, 0x7ff87559, 0xcb701f1f, 0x6fa3e85d, 0xe45e9a54, 0xf05d1802,
|
|
0x44d03b2e, 0x837b692e, 0xccd4354e, 0x3d6da13c, 0x3423084d, 0xf707c34a, 0x55f6db3a, 0xad26e442,
|
|
0x6233a21f, 0x09e80e59, 0x8caeb54d, 0xbe870941, 0xb407d20e, 0x20b51018, 0x56fb152e, 0x460d2a4e,
|
|
0xbb9a2946, 0x560eb12e, 0xed83dd29, 0xd6724f53, 0xa50aafb8, 0x451346d9, 0x88348e2e, 0x7312fead,
|
|
0x8ecaf96f, 0x1bda4e5f, 0xf1671e40, 0x3c8c3e3b, 0x4716324d, 0xdde24ede, 0xf98cd17d, 0xa91d4644,
|
|
0x28124eb2, 0x147d5129, 0xd022042e, 0x61733d3b, 0xad0d5e02, 0x8ce2932e, 0xe5c18502, 0x549c1e32,
|
|
0x9685801f, 0x86e217ad, 0xd948214b, 0x4110f462, 0x3a2e894e, 0xbd35492e, 0x87e0d558, 0x64b8ef7d,
|
|
0x7c3eb962, 0x72a84b3e, 0x7cd667c9, 0x28370a2e, 0x4bc60e7b, 0x6fc1ec60, 0x14a6983f, 0x86739a4b,
|
|
0x46954e5f, 0x32e2e15c, 0x2e9326cf, 0xe5801c5e, 0x379607b2, 0x32151145, 0xf0e39744, 0xacb54c55,
|
|
0xa37dfb60, 0x83b55cc9, 0x388f7ca5, 0x15034f5f, 0x3e94965b, 0x68e0ffad, 0x35280f59, 0x8fe190cf,
|
|
0x7c6ba5b2, 0xa5e9db43, 0x4ee1fc60, 0xd9d94e5f, 0x04040677, 0x0ea9b35e, 0x5961f14f, 0x67fda063,
|
|
0xa48a5a31, 0xc6524e55, 0x283d325e, 0x3f37515f, 0x96b94b3e, 0xacce620e, 0x6481cc5b, 0xa4a06d4b,
|
|
0x9e95d2d9, 0xe40c03d5, 0xc2f4514b, 0xb79aad44, 0xf64be843, 0xb2064070, 0xfca00455, 0x429dfa4e,
|
|
0x2323f173, 0xeda4185e, 0xabd5227d, 0x9efd4d58, 0xb1104758, 0x4811e955, 0xbd9ab355, 0xe921f44b,
|
|
0x9f166dce, 0x09e279b2, 0xe0c9ac7b, 0x7901a5ad, 0xa145d4b0, 0x79104671, 0xec31e35a, 0x4fe0b555,
|
|
0xc7d9cbad, 0xad057f55, 0xe94cc759, 0x7fe0b043, 0xe4529f2e, 0x0d4dd4b2, 0x9f11a54d, 0x031e2e4e,
|
|
0xe6014f5f, 0x11d1ca6c, 0x26bd7f61, 0xeb86854f, 0x4d347b57, 0x116bbe2e, 0xdba7234e, 0x7bcbfd2e,
|
|
0x174dd4b2, 0x6686762e, 0xb089ba50, 0xc6258246, 0x087e767b, 0xc4a8cb4a, 0x595dba50, 0x7f0ae502,
|
|
0x7b1dbd5a, 0xa0603492, 0x57d1af4b, 0x9e21ffd4, 0x6393064d, 0x7407376e, 0xe484762e, 0x122a4e53,
|
|
0x4a37aa43, 0x3888a6be, 0xee77864e, 0x039c8dd5, 0x688d89af, 0x0e988f62, 0x08218246, 0xfc2f8246,
|
|
0xd1d97040, 0xd64cd4b2, 0x5ae4a6b8, 0x7d0de9bc, 0x8d304d61, 0x06c5c672, 0xa4c8bd4d, 0xe0fd373b,
|
|
0x575ebe4d, 0x72d26277, 0x55570f55, 0x77b154d9, 0xe214293a, 0xfc740f4b, 0xfe3f6a57, 0xa9c55f02,
|
|
0xae4054db, 0x2394d918, 0xb511b24a, 0xb8741ab2, 0x0758e65e, 0xc7b5795b, 0xb0a30a4c, 0xaf7f170c,
|
|
0xf3b4762e, 0x8179576d, 0x738a1581, 0x4b95b64c, 0x9829b618, 0x1bea932e, 0x7bdeaa4b, 0xcb5e0281,
|
|
0x65618f54, 0x0658474b, 0x27066acf, 0x40556d65, 0x7d204d53, 0xf28bc244, 0xdce23455, 0xadc0ff54,
|
|
0x3863c948, 0xcee34e5f, 0xdeb85e02, 0x2ed17a61, 0x6a7b094d, 0x7f0cfc40, 0x59603f54, 0x3220afbc,
|
|
0xb5dfd962, 0x125d21c0, 0x13f8d243, 0xacfefb4e, 0x86c2c147, 0x3d8bbd59, 0xbd02a21f, 0x2593042e,
|
|
0xc6a17a7c, 0x28925861, 0xb487ed44, 0xb5f4fd6d, 0x90c28a45, 0x5a14f74d, 0x43d71b4c, 0x728ebb5d,
|
|
0x885bf950, 0x08134dd0, 0x38ec046e, 0xc575684b, 0x50082d2e, 0xa2f47757, 0x270f86ae, 0xf3ff6462,
|
|
0x10ed3f4e, 0x4b58d462, 0xe01ce23e, 0x8c5b092e, 0x63e52f4e, 0x22c1e85d, 0xa908f54e, 0x8591624f,
|
|
0x2c0fb94e, 0xa280ba3c, 0xb6f41b4c, 0x24f9aa47, 0x27201647, 0x3a3ea6dc, 0xa14fc3be, 0x3c34bdd5,
|
|
0x5b8d4f5b, 0xaadeaf4b, 0xc71cab50, 0x15697a4c, 0x9a1a734c, 0x2a037d81, 0x2590bd59, 0x48ec2741,
|
|
0x53489c5b, 0x7f00314b, 0x2170d362, 0xf2e92542, 0x42c10b44, 0x98f0f118, 0x883a3456, 0x099a932e,
|
|
0xea38f7bc, 0x644e9247, 0xbb61b62e, 0x30e0863d, 0x5f51be54, 0x207215c7, 0x5f306c45, 0xaa7f3932,
|
|
0x98da7d45, 0x4e339b59, 0x2e411581, 0xa808f618, 0xad2c0c59, 0x54476741, 0x09e99fd1, 0x5db8f752,
|
|
0xc16df8bd, 0x1dd4b44f, 0x106edf2e, 0x9e15c180, 0x2ad6b56f, 0x633a5332, 0xff33787c, 0x077cb545,
|
|
0x6610be6d, 0x75aad2c4, 0x72fb4d5b, 0xe81e0f59, 0x576f6332, 0x47333373, 0x351ed783, 0x2d90fb50,
|
|
0x8d5e0f6c, 0x5b27a552, 0xdb293ebb, 0xe55ef950, 0x4b133ad8, 0x75df975a, 0x7b6a8740, 0xa899464b,
|
|
0xfab15161, 0x10f8b64d, 0xd055ea4d, 0xee8e146b, 0x4b14afb8, 0x4bc1c44a, 0x9b961dcc, 0xd111ff43,
|
|
0xfca0b745, 0xc800e412, 0x0afad9d1, 0xf751c350, 0xf9f0cccf, 0xa290a545, 0x8ef13763, 0x7ec70d59,
|
|
0x2b066acf, 0x65496c45, 0xade02c1b, 0xae6eb077, 0x92c1e65b, 0xc064e6a9, 0xc649e56d, 0x5287a243,
|
|
0x36de4f5b, 0x5b1df6ad, 0x65c39a59, 0xdba805b2, 0x20067aa8, 0x6457e56d, 0x3cee26cf, 0xfd3ff26d,
|
|
0x04f86d4a, 0x06b8e048, 0xa93bcd5c, 0x91135852, 0xbe90a643, 0x8fa0094d, 0x06d8215f, 0x2677094d,
|
|
0xd735685c, 0x164a00c9, 0x5209ac5f, 0xa9564c5c, 0x3b504f5f, 0xcc826bd0, 0x4615042e, 0x5fe13b4a,
|
|
0x8c81b86d, 0x879ab68c, 0x1de564b8, 0x434487d8, 0x2dcb1b63, 0x82ab524a, 0xb0676abb, 0xa13d9c62,
|
|
0xdbb5b86d, 0x5b7f4b59, 0xaddfb44d, 0xad773532, 0x3997054c, 0x72cebd89, 0xb194544c, 0xc5b8046e,
|
|
0x6e1adeb2, 0xaa5abb51, 0xefb54b44, 0x15efc54f, 0xe9f1bc4d, 0x5f401b6c, 0x97f018ad, 0xc82f9252,
|
|
0x2cdc762e, 0x8e52e56d, 0x1827175e, 0x9b7d7d80, 0xb2ad6845, 0x51065140, 0x71180a18, 0x5b27006c,
|
|
0x0621e255, 0x721cbe58, 0x670c0cb8, 0xf8bd715d, 0xe0bdc5d9, 0xed843501, 0x4b84554d, 0x7f1a18bc,
|
|
0x53bcaf47, 0x5729d35f, 0xf0dda246, 0x22382bd0, 0x4d641fb0, 0x316afcde, 0x50a22f1f, 0x73608046,
|
|
0xc461d84a, 0xb2dbe247,
|
|
};
|
|
|
|
void DumpAddresses()
|
|
{
|
|
int64 nStart = GetTimeMillis();
|
|
|
|
CAddrDB adb;
|
|
adb.Write(addrman);
|
|
|
|
printf("Flushed %d addresses to peers.dat %"PRI64d"ms\n",
|
|
addrman.size(), GetTimeMillis() - nStart);
|
|
}
|
|
|
|
void ThreadDumpAddress2(void* parg)
|
|
{
|
|
printf("ThreadDumpAddress started\n");
|
|
|
|
vnThreadsRunning[THREAD_DUMPADDRESS]++;
|
|
while (!fShutdown)
|
|
{
|
|
DumpAddresses();
|
|
vnThreadsRunning[THREAD_DUMPADDRESS]--;
|
|
Sleep(100000);
|
|
vnThreadsRunning[THREAD_DUMPADDRESS]++;
|
|
}
|
|
vnThreadsRunning[THREAD_DUMPADDRESS]--;
|
|
}
|
|
|
|
void ThreadDumpAddress(void* parg)
|
|
{
|
|
// Make this thread recognisable as the address dumping thread
|
|
RenameThread("bitcoin-adrdump");
|
|
|
|
try
|
|
{
|
|
ThreadDumpAddress2(parg);
|
|
}
|
|
catch (std::exception& e) {
|
|
PrintException(&e, "ThreadDumpAddress()");
|
|
}
|
|
printf("ThreadDumpAddress exited\n");
|
|
}
|
|
|
|
void ThreadOpenConnections(void* parg)
|
|
{
|
|
// Make this thread recognisable as the connection opening thread
|
|
RenameThread("bitcoin-opencon");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
|
|
ThreadOpenConnections2(parg);
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
PrintException(&e, "ThreadOpenConnections()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
PrintException(NULL, "ThreadOpenConnections()");
|
|
}
|
|
printf("ThreadOpenConnections exited\n");
|
|
}
|
|
|
|
void static ProcessOneShot()
|
|
{
|
|
string strDest;
|
|
{
|
|
LOCK(cs_vOneShots);
|
|
if (vOneShots.empty())
|
|
return;
|
|
strDest = vOneShots.front();
|
|
vOneShots.pop_front();
|
|
}
|
|
CAddress addr;
|
|
CSemaphoreGrant grant(*semOutbound, true);
|
|
if (grant) {
|
|
if (!OpenNetworkConnection(addr, &grant, strDest.c_str(), true))
|
|
AddOneShot(strDest);
|
|
}
|
|
}
|
|
|
|
void ThreadOpenConnections2(void* parg)
|
|
{
|
|
printf("ThreadOpenConnections started\n");
|
|
|
|
// Connect to specific addresses
|
|
if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0)
|
|
{
|
|
for (int64 nLoop = 0;; nLoop++)
|
|
{
|
|
ProcessOneShot();
|
|
BOOST_FOREACH(string strAddr, mapMultiArgs["-connect"])
|
|
{
|
|
CAddress addr;
|
|
OpenNetworkConnection(addr, NULL, strAddr.c_str());
|
|
for (int i = 0; i < 10 && i < nLoop; i++)
|
|
{
|
|
Sleep(500);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
Sleep(500);
|
|
}
|
|
}
|
|
|
|
// Initiate network connections
|
|
int64 nStart = GetTime();
|
|
loop
|
|
{
|
|
ProcessOneShot();
|
|
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
Sleep(500);
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
|
|
if (fShutdown)
|
|
return;
|
|
|
|
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
CSemaphoreGrant grant(*semOutbound);
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
|
|
if (fShutdown)
|
|
return;
|
|
|
|
// Add seed nodes if IRC isn't working
|
|
if (addrman.size()==0 && (GetTime() - nStart > 60) && !fTestNet)
|
|
{
|
|
std::vector<CAddress> vAdd;
|
|
for (unsigned int i = 0; i < ARRAYLEN(pnSeed); i++)
|
|
{
|
|
// It'll only connect to one or two seed nodes because once it connects,
|
|
// it'll get a pile of addresses with newer timestamps.
|
|
// Seed nodes are given a random 'last seen time' of between one and two
|
|
// weeks ago.
|
|
const int64 nOneWeek = 7*24*60*60;
|
|
struct in_addr ip;
|
|
memcpy(&ip, &pnSeed[i], sizeof(ip));
|
|
CAddress addr(CService(ip, GetDefaultPort()));
|
|
addr.nTime = GetTime()-GetRand(nOneWeek)-nOneWeek;
|
|
vAdd.push_back(addr);
|
|
}
|
|
addrman.Add(vAdd, CNetAddr("127.0.0.1"));
|
|
}
|
|
|
|
//
|
|
// Choose an address to connect to based on most recently seen
|
|
//
|
|
CAddress addrConnect;
|
|
|
|
// Only connect out to one peer per network group (/16 for IPv4).
|
|
// Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
|
|
int nOutbound = 0;
|
|
set<vector<unsigned char> > setConnected;
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes) {
|
|
if (!pnode->fInbound) {
|
|
setConnected.insert(pnode->addr.GetGroup());
|
|
nOutbound++;
|
|
}
|
|
}
|
|
}
|
|
|
|
int64 nANow = GetAdjustedTime();
|
|
|
|
int nTries = 0;
|
|
loop
|
|
{
|
|
// use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections)
|
|
CAddress addr = addrman.Select(10 + min(nOutbound,8)*10);
|
|
|
|
// if we selected an invalid address, restart
|
|
if (!addr.IsValid() || setConnected.count(addr.GetGroup()) || IsLocal(addr))
|
|
break;
|
|
|
|
// If we didn't find an appropriate destination after trying 100 addresses fetched from addrman,
|
|
// stop this loop, and let the outer loop run again (which sleeps, adds seed nodes, recalculates
|
|
// already-connected network ranges, ...) before trying new addrman addresses.
|
|
nTries++;
|
|
if (nTries > 100)
|
|
break;
|
|
|
|
if (IsLimited(addr))
|
|
continue;
|
|
|
|
// only consider very recently tried nodes after 30 failed attempts
|
|
if (nANow - addr.nLastTry < 600 && nTries < 30)
|
|
continue;
|
|
|
|
// do not allow non-default ports, unless after 50 invalid addresses selected already
|
|
if (addr.GetPort() != GetDefaultPort() && nTries < 50)
|
|
continue;
|
|
|
|
addrConnect = addr;
|
|
break;
|
|
}
|
|
|
|
if (addrConnect.IsValid())
|
|
OpenNetworkConnection(addrConnect, &grant);
|
|
}
|
|
}
|
|
|
|
void ThreadOpenAddedConnections(void* parg)
|
|
{
|
|
// Make this thread recognisable as the connection opening thread
|
|
RenameThread("bitcoin-opencon");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
|
|
ThreadOpenAddedConnections2(parg);
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
|
|
PrintException(&e, "ThreadOpenAddedConnections()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
|
|
PrintException(NULL, "ThreadOpenAddedConnections()");
|
|
}
|
|
printf("ThreadOpenAddedConnections exited\n");
|
|
}
|
|
|
|
void ThreadOpenAddedConnections2(void* parg)
|
|
{
|
|
printf("ThreadOpenAddedConnections started\n");
|
|
|
|
{
|
|
LOCK(cs_vAddedNodes);
|
|
vAddedNodes = mapMultiArgs["-addnode"];
|
|
}
|
|
|
|
if (HaveNameProxy()) {
|
|
while(!fShutdown) {
|
|
list<string> lAddresses(0);
|
|
{
|
|
LOCK(cs_vAddedNodes);
|
|
BOOST_FOREACH(string& strAddNode, vAddedNodes)
|
|
lAddresses.push_back(strAddNode);
|
|
}
|
|
BOOST_FOREACH(string& strAddNode, lAddresses) {
|
|
CAddress addr;
|
|
CSemaphoreGrant grant(*semOutbound);
|
|
OpenNetworkConnection(addr, &grant, strAddNode.c_str());
|
|
Sleep(500);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
|
|
Sleep(120000); // Retry every 2 minutes
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
|
|
}
|
|
return;
|
|
}
|
|
|
|
for (unsigned int i = 0; true; i++)
|
|
{
|
|
list<string> lAddresses(0);
|
|
{
|
|
LOCK(cs_vAddedNodes);
|
|
BOOST_FOREACH(string& strAddNode, vAddedNodes)
|
|
lAddresses.push_back(strAddNode);
|
|
}
|
|
|
|
list<vector<CService> > lservAddressesToAdd(0);
|
|
BOOST_FOREACH(string& strAddNode, lAddresses)
|
|
{
|
|
vector<CService> vservNode(0);
|
|
if(Lookup(strAddNode.c_str(), vservNode, GetDefaultPort(), fNameLookup, 0))
|
|
{
|
|
lservAddressesToAdd.push_back(vservNode);
|
|
{
|
|
LOCK(cs_setservAddNodeAddresses);
|
|
BOOST_FOREACH(CService& serv, vservNode)
|
|
setservAddNodeAddresses.insert(serv);
|
|
}
|
|
}
|
|
}
|
|
// Attempt to connect to each IP for each addnode entry until at least one is successful per addnode entry
|
|
// (keeping in mind that addnode entries can have many IPs if fNameLookup)
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
for (list<vector<CService> >::iterator it = lservAddressesToAdd.begin(); it != lservAddressesToAdd.end(); it++)
|
|
BOOST_FOREACH(CService& addrNode, *(it))
|
|
if (pnode->addr == addrNode)
|
|
{
|
|
it = lservAddressesToAdd.erase(it);
|
|
it--;
|
|
break;
|
|
}
|
|
}
|
|
BOOST_FOREACH(vector<CService>& vserv, lservAddressesToAdd)
|
|
{
|
|
CSemaphoreGrant grant(*semOutbound);
|
|
OpenNetworkConnection(CAddress(vserv[i % vserv.size()]), &grant);
|
|
Sleep(500);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
if (fShutdown)
|
|
return;
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]--;
|
|
Sleep(120000); // Retry every 2 minutes
|
|
vnThreadsRunning[THREAD_ADDEDCONNECTIONS]++;
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
|
|
// if successful, this moves the passed grant to the constructed node
|
|
bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound, const char *strDest, bool fOneShot)
|
|
{
|
|
//
|
|
// Initiate outbound network connection
|
|
//
|
|
if (fShutdown)
|
|
return false;
|
|
if (!strDest)
|
|
if (IsLocal(addrConnect) ||
|
|
FindNode((CNetAddr)addrConnect) || CNode::IsBanned(addrConnect) ||
|
|
FindNode(addrConnect.ToStringIPPort().c_str()))
|
|
return false;
|
|
if (strDest && FindNode(strDest))
|
|
return false;
|
|
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]--;
|
|
CNode* pnode = ConnectNode(addrConnect, strDest);
|
|
vnThreadsRunning[THREAD_OPENCONNECTIONS]++;
|
|
if (fShutdown)
|
|
return false;
|
|
if (!pnode)
|
|
return false;
|
|
if (grantOutbound)
|
|
grantOutbound->MoveTo(pnode->grantOutbound);
|
|
pnode->fNetworkNode = true;
|
|
if (fOneShot)
|
|
pnode->fOneShot = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void ThreadMessageHandler(void* parg)
|
|
{
|
|
// Make this thread recognisable as the message handling thread
|
|
RenameThread("bitcoin-msghand");
|
|
|
|
try
|
|
{
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
|
|
ThreadMessageHandler2(parg);
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
|
|
PrintException(&e, "ThreadMessageHandler()");
|
|
} catch (...) {
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
|
|
PrintException(NULL, "ThreadMessageHandler()");
|
|
}
|
|
printf("ThreadMessageHandler exited\n");
|
|
}
|
|
|
|
void ThreadMessageHandler2(void* parg)
|
|
{
|
|
printf("ThreadMessageHandler started\n");
|
|
SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
|
|
while (!fShutdown)
|
|
{
|
|
vector<CNode*> vNodesCopy;
|
|
{
|
|
LOCK(cs_vNodes);
|
|
vNodesCopy = vNodes;
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
pnode->AddRef();
|
|
}
|
|
|
|
// Poll the connected nodes for messages
|
|
CNode* pnodeTrickle = NULL;
|
|
if (!vNodesCopy.empty())
|
|
pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
{
|
|
// Receive messages
|
|
{
|
|
TRY_LOCK(pnode->cs_vRecv, lockRecv);
|
|
if (lockRecv)
|
|
ProcessMessages(pnode);
|
|
}
|
|
if (fShutdown)
|
|
return;
|
|
|
|
// Send messages
|
|
{
|
|
TRY_LOCK(pnode->cs_vSend, lockSend);
|
|
if (lockSend)
|
|
SendMessages(pnode, pnode == pnodeTrickle);
|
|
}
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
|
|
{
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodesCopy)
|
|
pnode->Release();
|
|
}
|
|
|
|
// Wait and allow messages to bunch up.
|
|
// Reduce vnThreadsRunning so StopNode has permission to exit while
|
|
// we're sleeping, but we must always check fShutdown after doing this.
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]--;
|
|
Sleep(100);
|
|
if (fRequestShutdown)
|
|
StartShutdown();
|
|
vnThreadsRunning[THREAD_MESSAGEHANDLER]++;
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
bool BindListenPort(const CService &addrBind, string& strError)
|
|
{
|
|
strError = "";
|
|
int nOne = 1;
|
|
|
|
#ifdef WIN32
|
|
// Initialize Windows Sockets
|
|
WSADATA wsadata;
|
|
int ret = WSAStartup(MAKEWORD(2,2), &wsadata);
|
|
if (ret != NO_ERROR)
|
|
{
|
|
strError = strprintf("Error: TCP/IP socket library failed to start (WSAStartup returned error %d)", ret);
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
// Create socket for listening for incoming connections
|
|
#ifdef USE_IPV6
|
|
struct sockaddr_storage sockaddr;
|
|
#else
|
|
struct sockaddr sockaddr;
|
|
#endif
|
|
socklen_t len = sizeof(sockaddr);
|
|
if (!addrBind.GetSockAddr((struct sockaddr*)&sockaddr, &len))
|
|
{
|
|
strError = strprintf("Error: bind address family for %s not supported", addrBind.ToString().c_str());
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
|
|
SOCKET hListenSocket = socket(((struct sockaddr*)&sockaddr)->sa_family, SOCK_STREAM, IPPROTO_TCP);
|
|
if (hListenSocket == INVALID_SOCKET)
|
|
{
|
|
strError = strprintf("Error: Couldn't open socket for incoming connections (socket returned error %d)", WSAGetLastError());
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
|
|
#ifdef SO_NOSIGPIPE
|
|
// Different way of disabling SIGPIPE on BSD
|
|
setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
|
|
#endif
|
|
|
|
#ifndef WIN32
|
|
// Allow binding if the port is still in TIME_WAIT state after
|
|
// the program was closed and restarted. Not an issue on windows.
|
|
setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (void*)&nOne, sizeof(int));
|
|
#endif
|
|
|
|
|
|
#ifdef WIN32
|
|
// Set to non-blocking, incoming connections will also inherit this
|
|
if (ioctlsocket(hListenSocket, FIONBIO, (u_long*)&nOne) == SOCKET_ERROR)
|
|
#else
|
|
if (fcntl(hListenSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
|
|
#endif
|
|
{
|
|
strError = strprintf("Error: Couldn't set properties on socket for incoming connections (error %d)", WSAGetLastError());
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
|
|
#ifdef USE_IPV6
|
|
// some systems don't have IPV6_V6ONLY but are always v6only; others do have the option
|
|
// and enable it by default or not. Try to enable it, if possible.
|
|
if (addrBind.IsIPv6()) {
|
|
#ifdef IPV6_V6ONLY
|
|
setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&nOne, sizeof(int));
|
|
#endif
|
|
#ifdef WIN32
|
|
int nProtLevel = 10 /* PROTECTION_LEVEL_UNRESTRICTED */;
|
|
int nParameterId = 23 /* IPV6_PROTECTION_LEVEl */;
|
|
// this call is allowed to fail
|
|
setsockopt(hListenSocket, IPPROTO_IPV6, nParameterId, (const char*)&nProtLevel, sizeof(int));
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, len) == SOCKET_ERROR)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
if (nErr == WSAEADDRINUSE)
|
|
strError = strprintf(_("Unable to bind to %s on this computer. Bitcoin is probably already running."), addrBind.ToString().c_str());
|
|
else
|
|
strError = strprintf(_("Unable to bind to %s on this computer (bind returned error %d, %s)"), addrBind.ToString().c_str(), nErr, strerror(nErr));
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
printf("Bound to %s\n", addrBind.ToString().c_str());
|
|
|
|
// Listen for incoming connections
|
|
if (listen(hListenSocket, SOMAXCONN) == SOCKET_ERROR)
|
|
{
|
|
strError = strprintf("Error: Listening for incoming connections failed (listen returned error %d)", WSAGetLastError());
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
|
|
vhListenSocket.push_back(hListenSocket);
|
|
|
|
if (addrBind.IsRoutable() && fDiscover)
|
|
AddLocal(addrBind, LOCAL_BIND);
|
|
|
|
return true;
|
|
}
|
|
|
|
void static Discover()
|
|
{
|
|
if (!fDiscover)
|
|
return;
|
|
|
|
#ifdef WIN32
|
|
// Get local host IP
|
|
char pszHostName[1000] = "";
|
|
if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
|
|
{
|
|
vector<CNetAddr> vaddr;
|
|
if (LookupHost(pszHostName, vaddr))
|
|
{
|
|
BOOST_FOREACH (const CNetAddr &addr, vaddr)
|
|
{
|
|
AddLocal(addr, LOCAL_IF);
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
// Get local host ip
|
|
struct ifaddrs* myaddrs;
|
|
if (getifaddrs(&myaddrs) == 0)
|
|
{
|
|
for (struct ifaddrs* ifa = myaddrs; ifa != NULL; ifa = ifa->ifa_next)
|
|
{
|
|
if (ifa->ifa_addr == NULL) continue;
|
|
if ((ifa->ifa_flags & IFF_UP) == 0) continue;
|
|
if (strcmp(ifa->ifa_name, "lo") == 0) continue;
|
|
if (strcmp(ifa->ifa_name, "lo0") == 0) continue;
|
|
if (ifa->ifa_addr->sa_family == AF_INET)
|
|
{
|
|
struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
|
|
CNetAddr addr(s4->sin_addr);
|
|
if (AddLocal(addr, LOCAL_IF))
|
|
printf("IPv4 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
|
|
}
|
|
#ifdef USE_IPV6
|
|
else if (ifa->ifa_addr->sa_family == AF_INET6)
|
|
{
|
|
struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
|
|
CNetAddr addr(s6->sin6_addr);
|
|
if (AddLocal(addr, LOCAL_IF))
|
|
printf("IPv6 %s: %s\n", ifa->ifa_name, addr.ToString().c_str());
|
|
}
|
|
#endif
|
|
}
|
|
freeifaddrs(myaddrs);
|
|
}
|
|
#endif
|
|
|
|
// Don't use external IPv4 discovery, when -onlynet="IPv6"
|
|
if (!IsLimited(NET_IPV4))
|
|
NewThread(ThreadGetMyExternalIP, NULL);
|
|
}
|
|
|
|
void StartNode(void* parg)
|
|
{
|
|
// Make this thread recognisable as the startup thread
|
|
RenameThread("bitcoin-start");
|
|
|
|
if (semOutbound == NULL) {
|
|
// initialize semaphore
|
|
int nMaxOutbound = min(MAX_OUTBOUND_CONNECTIONS, (int)GetArg("-maxconnections", 125));
|
|
semOutbound = new CSemaphore(nMaxOutbound);
|
|
}
|
|
|
|
if (pnodeLocalHost == NULL)
|
|
pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress(CService("127.0.0.1", 0), nLocalServices));
|
|
|
|
Discover();
|
|
|
|
//
|
|
// Start threads
|
|
//
|
|
|
|
if (!GetBoolArg("-dnsseed", true))
|
|
printf("DNS seeding disabled\n");
|
|
else
|
|
if (!NewThread(ThreadDNSAddressSeed, NULL))
|
|
printf("Error: NewThread(ThreadDNSAddressSeed) failed\n");
|
|
|
|
// Map ports with UPnP
|
|
if (fUseUPnP)
|
|
MapPort();
|
|
|
|
// Get addresses from IRC and advertise ours
|
|
if (!NewThread(ThreadIRCSeed, NULL))
|
|
printf("Error: NewThread(ThreadIRCSeed) failed\n");
|
|
|
|
// Send and receive from sockets, accept connections
|
|
if (!NewThread(ThreadSocketHandler, NULL))
|
|
printf("Error: NewThread(ThreadSocketHandler) failed\n");
|
|
|
|
// Initiate outbound connections from -addnode
|
|
if (!NewThread(ThreadOpenAddedConnections, NULL))
|
|
printf("Error: NewThread(ThreadOpenAddedConnections) failed\n");
|
|
|
|
// Initiate outbound connections
|
|
if (!NewThread(ThreadOpenConnections, NULL))
|
|
printf("Error: NewThread(ThreadOpenConnections) failed\n");
|
|
|
|
// Process messages
|
|
if (!NewThread(ThreadMessageHandler, NULL))
|
|
printf("Error: NewThread(ThreadMessageHandler) failed\n");
|
|
|
|
// Dump network addresses
|
|
if (!NewThread(ThreadDumpAddress, NULL))
|
|
printf("Error; NewThread(ThreadDumpAddress) failed\n");
|
|
|
|
// Generate coins in the background
|
|
GenerateBitcoins(GetBoolArg("-gen", false), pwalletMain);
|
|
}
|
|
|
|
bool StopNode()
|
|
{
|
|
printf("StopNode()\n");
|
|
fShutdown = true;
|
|
nTransactionsUpdated++;
|
|
int64 nStart = GetTime();
|
|
if (semOutbound)
|
|
for (int i=0; i<MAX_OUTBOUND_CONNECTIONS; i++)
|
|
semOutbound->post();
|
|
do
|
|
{
|
|
int nThreadsRunning = 0;
|
|
for (int n = 0; n < THREAD_MAX; n++)
|
|
nThreadsRunning += vnThreadsRunning[n];
|
|
if (nThreadsRunning == 0)
|
|
break;
|
|
if (GetTime() - nStart > 20)
|
|
break;
|
|
Sleep(20);
|
|
} while(true);
|
|
if (vnThreadsRunning[THREAD_SOCKETHANDLER] > 0) printf("ThreadSocketHandler still running\n");
|
|
if (vnThreadsRunning[THREAD_OPENCONNECTIONS] > 0) printf("ThreadOpenConnections still running\n");
|
|
if (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0) printf("ThreadMessageHandler still running\n");
|
|
if (vnThreadsRunning[THREAD_MINER] > 0) printf("ThreadBitcoinMiner still running\n");
|
|
if (vnThreadsRunning[THREAD_RPCLISTENER] > 0) printf("ThreadRPCListener still running\n");
|
|
if (vnThreadsRunning[THREAD_RPCHANDLER] > 0) printf("ThreadsRPCServer still running\n");
|
|
#ifdef USE_UPNP
|
|
if (vnThreadsRunning[THREAD_UPNP] > 0) printf("ThreadMapPort still running\n");
|
|
#endif
|
|
if (vnThreadsRunning[THREAD_DNSSEED] > 0) printf("ThreadDNSAddressSeed still running\n");
|
|
if (vnThreadsRunning[THREAD_ADDEDCONNECTIONS] > 0) printf("ThreadOpenAddedConnections still running\n");
|
|
if (vnThreadsRunning[THREAD_DUMPADDRESS] > 0) printf("ThreadDumpAddresses still running\n");
|
|
while (vnThreadsRunning[THREAD_MESSAGEHANDLER] > 0 || vnThreadsRunning[THREAD_RPCHANDLER] > 0)
|
|
Sleep(20);
|
|
Sleep(50);
|
|
DumpAddresses();
|
|
return true;
|
|
}
|
|
|
|
class CNetCleanup
|
|
{
|
|
public:
|
|
CNetCleanup()
|
|
{
|
|
}
|
|
~CNetCleanup()
|
|
{
|
|
// Close sockets
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
if (pnode->hSocket != INVALID_SOCKET)
|
|
closesocket(pnode->hSocket);
|
|
BOOST_FOREACH(SOCKET hListenSocket, vhListenSocket)
|
|
if (hListenSocket != INVALID_SOCKET)
|
|
if (closesocket(hListenSocket) == SOCKET_ERROR)
|
|
printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
|
|
|
|
#ifdef WIN32
|
|
// Shutdown Windows Sockets
|
|
WSACleanup();
|
|
#endif
|
|
}
|
|
}
|
|
instance_of_cnetcleanup;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void RelayTransaction(const CTransaction& tx, const uint256& hash)
|
|
{
|
|
CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
|
|
ss.reserve(10000);
|
|
ss << tx;
|
|
RelayTransaction(tx, hash, ss);
|
|
}
|
|
|
|
void RelayTransaction(const CTransaction& tx, const uint256& hash, const CDataStream& ss)
|
|
{
|
|
CInv inv(MSG_TX, hash);
|
|
{
|
|
LOCK(cs_mapRelay);
|
|
// Expire old relay messages
|
|
while (!vRelayExpiration.empty() && vRelayExpiration.front().first < GetTime())
|
|
{
|
|
mapRelay.erase(vRelayExpiration.front().second);
|
|
vRelayExpiration.pop_front();
|
|
}
|
|
|
|
// Save original serialized message so newer versions are preserved
|
|
mapRelay.insert(std::make_pair(inv, ss));
|
|
vRelayExpiration.push_back(std::make_pair(GetTime() + 15 * 60, inv));
|
|
}
|
|
LOCK(cs_vNodes);
|
|
BOOST_FOREACH(CNode* pnode, vNodes)
|
|
{
|
|
if(!pnode->fRelayTxes)
|
|
continue;
|
|
LOCK(pnode->cs_filter);
|
|
if (pnode->pfilter)
|
|
{
|
|
if (pnode->pfilter->IsRelevantAndUpdate(tx, hash))
|
|
pnode->PushInventory(inv);
|
|
} else
|
|
pnode->PushInventory(inv);
|
|
}
|
|
}
|