You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1401 lines
44 KiB
1401 lines
44 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
|
// file license.txt or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include "headers.h"
|
|
|
|
static const int MAX_OUTBOUND_CONNECTIONS = 8;
|
|
|
|
void ThreadMessageHandler2(void* parg);
|
|
void ThreadSocketHandler2(void* parg);
|
|
void ThreadOpenConnections2(void* parg);
|
|
bool OpenNetworkConnection(const CAddress& addrConnect);
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Global state variables
|
|
//
|
|
bool fClient = false;
|
|
uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
|
|
CAddress addrLocalHost(0, 0, nLocalServices);
|
|
CNode* pnodeLocalHost = NULL;
|
|
uint64 nLocalHostNonce = 0;
|
|
array<int, 10> vnThreadsRunning;
|
|
SOCKET hListenSocket = INVALID_SOCKET;
|
|
|
|
vector<CNode*> vNodes;
|
|
CCriticalSection cs_vNodes;
|
|
map<vector<unsigned char>, CAddress> mapAddresses;
|
|
CCriticalSection cs_mapAddresses;
|
|
map<CInv, CDataStream> mapRelay;
|
|
deque<pair<int64, CInv> > vRelayExpiration;
|
|
CCriticalSection cs_mapRelay;
|
|
map<CInv, int64> mapAlreadyAskedFor;
|
|
|
|
// Settings
|
|
int fUseProxy = false;
|
|
CAddress addrProxy("127.0.0.1:9050");
|
|
|
|
|
|
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool ConnectSocket(const CAddress& addrConnect, SOCKET& hSocketRet)
|
|
{
|
|
hSocketRet = INVALID_SOCKET;
|
|
|
|
SOCKET hSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
|
if (hSocket == INVALID_SOCKET)
|
|
return false;
|
|
#ifdef BSD
|
|
int set = 1;
|
|
setsockopt(hSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&set, sizeof(int));
|
|
#endif
|
|
|
|
bool fRoutable = !(addrConnect.GetByte(3) == 10 || (addrConnect.GetByte(3) == 192 && addrConnect.GetByte(2) == 168));
|
|
bool fProxy = (fUseProxy && fRoutable);
|
|
struct sockaddr_in sockaddr = (fProxy ? addrProxy.GetSockAddr() : addrConnect.GetSockAddr());
|
|
|
|
if (connect(hSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
|
|
{
|
|
closesocket(hSocket);
|
|
return false;
|
|
}
|
|
|
|
if (fProxy)
|
|
{
|
|
printf("proxy connecting %s\n", addrConnect.ToStringLog().c_str());
|
|
char pszSocks4IP[] = "\4\1\0\0\0\0\0\0user";
|
|
memcpy(pszSocks4IP + 2, &addrConnect.port, 2);
|
|
memcpy(pszSocks4IP + 4, &addrConnect.ip, 4);
|
|
char* pszSocks4 = pszSocks4IP;
|
|
int nSize = sizeof(pszSocks4IP);
|
|
|
|
int ret = send(hSocket, pszSocks4, nSize, MSG_NOSIGNAL);
|
|
if (ret != nSize)
|
|
{
|
|
closesocket(hSocket);
|
|
return error("Error sending to proxy");
|
|
}
|
|
char pchRet[8];
|
|
if (recv(hSocket, pchRet, 8, 0) != 8)
|
|
{
|
|
closesocket(hSocket);
|
|
return error("Error reading proxy response");
|
|
}
|
|
if (pchRet[1] != 0x5a)
|
|
{
|
|
closesocket(hSocket);
|
|
if (pchRet[1] != 0x5b)
|
|
printf("ERROR: Proxy returned error %d\n", pchRet[1]);
|
|
return false;
|
|
}
|
|
printf("proxy connected %s\n", addrConnect.ToStringLog().c_str());
|
|
}
|
|
|
|
hSocketRet = hSocket;
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
bool GetMyExternalIP2(const CAddress& addrConnect, const char* pszGet, const char* pszKeyword, unsigned int& 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())
|
|
{
|
|
loop
|
|
{
|
|
if (!RecvLine(hSocket, strLine))
|
|
{
|
|
closesocket(hSocket);
|
|
return false;
|
|
}
|
|
if (strLine.find(pszKeyword) != -1)
|
|
{
|
|
strLine = strLine.substr(strLine.find(pszKeyword) + strlen(pszKeyword));
|
|
break;
|
|
}
|
|
}
|
|
closesocket(hSocket);
|
|
if (strLine.find("<") != -1)
|
|
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);
|
|
CAddress addr(strLine.c_str());
|
|
printf("GetMyExternalIP() received [%s] %s\n", strLine.c_str(), addr.ToString().c_str());
|
|
if (addr.ip == 0 || addr.ip == INADDR_NONE || !addr.IsRoutable())
|
|
return false;
|
|
ipRet = addr.ip;
|
|
return true;
|
|
}
|
|
}
|
|
closesocket(hSocket);
|
|
return error("GetMyExternalIP() : connection closed");
|
|
}
|
|
|
|
|
|
bool GetMyExternalIP(unsigned int& ipRet)
|
|
{
|
|
CAddress addrConnect;
|
|
const char* pszGet;
|
|
const char* pszKeyword;
|
|
|
|
if (fUseProxy)
|
|
return false;
|
|
|
|
for (int nLookup = 0; nLookup <= 1; nLookup++)
|
|
for (int nHost = 1; nHost <= 2; nHost++)
|
|
{
|
|
if (nHost == 1)
|
|
{
|
|
addrConnect = CAddress("70.86.96.218:80"); // www.ipaddressworld.com
|
|
|
|
if (nLookup == 1)
|
|
{
|
|
struct hostent* phostent = gethostbyname("www.ipaddressworld.com");
|
|
if (phostent && phostent->h_addr_list && phostent->h_addr_list[0])
|
|
addrConnect = CAddress(*(u_long*)phostent->h_addr_list[0], htons(80));
|
|
}
|
|
|
|
pszGet = "GET /ip.php HTTP/1.1\r\n"
|
|
"Host: www.ipaddressworld.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 = "IP:";
|
|
}
|
|
else if (nHost == 2)
|
|
{
|
|
addrConnect = CAddress("208.78.68.70:80"); // checkip.dyndns.org
|
|
|
|
if (nLookup == 1)
|
|
{
|
|
struct hostent* phostent = gethostbyname("checkip.dyndns.org");
|
|
if (phostent && phostent->h_addr_list && phostent->h_addr_list[0])
|
|
addrConnect = CAddress(*(u_long*)phostent->h_addr_list[0], htons(80));
|
|
}
|
|
|
|
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:";
|
|
}
|
|
|
|
if (GetMyExternalIP2(addrConnect, pszGet, pszKeyword, ipRet))
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool AddAddress(CAddress addr, int64 nTimePenalty)
|
|
{
|
|
if (!addr.IsRoutable())
|
|
return false;
|
|
if (addr.ip == addrLocalHost.ip)
|
|
return false;
|
|
addr.nTime = max((int64)0, (int64)addr.nTime - nTimePenalty);
|
|
CRITICAL_BLOCK(cs_mapAddresses)
|
|
{
|
|
map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
|
|
if (it == mapAddresses.end())
|
|
{
|
|
// New address
|
|
printf("AddAddress(%s)\n", addr.ToStringLog().c_str());
|
|
mapAddresses.insert(make_pair(addr.GetKey(), addr));
|
|
CAddrDB().WriteAddress(addr);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
bool fUpdated = false;
|
|
CAddress& addrFound = (*it).second;
|
|
if ((addrFound.nServices | addr.nServices) != addrFound.nServices)
|
|
{
|
|
// Services have been added
|
|
addrFound.nServices |= addr.nServices;
|
|
fUpdated = true;
|
|
}
|
|
bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
|
|
int64 nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
|
|
if (addrFound.nTime < addr.nTime - nUpdateInterval)
|
|
{
|
|
// Periodically update most recently seen time
|
|
addrFound.nTime = addr.nTime;
|
|
fUpdated = true;
|
|
}
|
|
if (fUpdated)
|
|
CAddrDB().WriteAddress(addrFound);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void AddressCurrentlyConnected(const CAddress& addr)
|
|
{
|
|
CRITICAL_BLOCK(cs_mapAddresses)
|
|
{
|
|
// Only if it's been published already
|
|
map<vector<unsigned char>, CAddress>::iterator it = mapAddresses.find(addr.GetKey());
|
|
if (it != mapAddresses.end())
|
|
{
|
|
CAddress& addrFound = (*it).second;
|
|
int64 nUpdateInterval = 20 * 60;
|
|
if (addrFound.nTime < GetAdjustedTime() - nUpdateInterval)
|
|
{
|
|
// Periodically update most recently seen time
|
|
addrFound.nTime = GetAdjustedTime();
|
|
CAddrDB addrdb;
|
|
addrdb.WriteAddress(addrFound);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void AbandonRequests(void (*fn)(void*, CDataStream&), void* param1)
|
|
{
|
|
// If the dialog might get closed before the reply comes back,
|
|
// call this in the destructor so it doesn't get called after it's deleted.
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
foreach(CNode* pnode, vNodes)
|
|
{
|
|
CRITICAL_BLOCK(pnode->cs_mapRequests)
|
|
{
|
|
for (map<uint256, CRequestTracker>::iterator mi = pnode->mapRequests.begin(); mi != pnode->mapRequests.end();)
|
|
{
|
|
CRequestTracker& tracker = (*mi).second;
|
|
if (tracker.fn == fn && tracker.param1 == param1)
|
|
pnode->mapRequests.erase(mi++);
|
|
else
|
|
mi++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Subscription methods for the broadcast and subscription system.
|
|
// Channel numbers are message numbers, i.e. MSG_TABLE and MSG_PRODUCT.
|
|
//
|
|
// The subscription system uses a meet-in-the-middle strategy.
|
|
// With 100,000 nodes, if senders broadcast to 1000 random nodes and receivers
|
|
// subscribe to 1000 random nodes, 99.995% (1 - 0.99^1000) of messages will get through.
|
|
//
|
|
|
|
bool AnySubscribed(unsigned int nChannel)
|
|
{
|
|
if (pnodeLocalHost->IsSubscribed(nChannel))
|
|
return true;
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode->IsSubscribed(nChannel))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
bool CNode::IsSubscribed(unsigned int nChannel)
|
|
{
|
|
if (nChannel >= vfSubscribe.size())
|
|
return false;
|
|
return vfSubscribe[nChannel];
|
|
}
|
|
|
|
void CNode::Subscribe(unsigned int nChannel, unsigned int nHops)
|
|
{
|
|
if (nChannel >= vfSubscribe.size())
|
|
return;
|
|
|
|
if (!AnySubscribed(nChannel))
|
|
{
|
|
// Relay subscribe
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode != this)
|
|
pnode->PushMessage("subscribe", nChannel, nHops);
|
|
}
|
|
|
|
vfSubscribe[nChannel] = true;
|
|
}
|
|
|
|
void CNode::CancelSubscribe(unsigned int nChannel)
|
|
{
|
|
if (nChannel >= vfSubscribe.size())
|
|
return;
|
|
|
|
// Prevent from relaying cancel if wasn't subscribed
|
|
if (!vfSubscribe[nChannel])
|
|
return;
|
|
vfSubscribe[nChannel] = false;
|
|
|
|
if (!AnySubscribed(nChannel))
|
|
{
|
|
// Relay subscription cancel
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode != this)
|
|
pnode->PushMessage("sub-cancel", nChannel);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CNode* FindNode(unsigned int ip)
|
|
{
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode->addr.ip == ip)
|
|
return (pnode);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
CNode* FindNode(CAddress addr)
|
|
{
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode->addr == addr)
|
|
return (pnode);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
|
|
{
|
|
if (addrConnect.ip == addrLocalHost.ip)
|
|
return NULL;
|
|
|
|
// Look for an existing connection
|
|
CNode* pnode = FindNode(addrConnect.ip);
|
|
if (pnode)
|
|
{
|
|
if (nTimeout != 0)
|
|
pnode->AddRef(nTimeout);
|
|
else
|
|
pnode->AddRef();
|
|
return pnode;
|
|
}
|
|
|
|
/// debug print
|
|
printf("trying connection %s lastseen=%.1fhrs lasttry=%.1fhrs\n",
|
|
addrConnect.ToStringLog().c_str(),
|
|
(double)(addrConnect.nTime - GetAdjustedTime())/3600.0,
|
|
(double)(addrConnect.nLastTry - GetAdjustedTime())/3600.0);
|
|
|
|
CRITICAL_BLOCK(cs_mapAddresses)
|
|
mapAddresses[addrConnect.GetKey()].nLastTry = GetAdjustedTime();
|
|
|
|
// Connect
|
|
SOCKET hSocket;
|
|
if (ConnectSocket(addrConnect, hSocket))
|
|
{
|
|
/// debug print
|
|
printf("connected %s\n", addrConnect.ToStringLog().c_str());
|
|
|
|
// Set to nonblocking
|
|
#ifdef __WXMSW__
|
|
u_long nOne = 1;
|
|
if (ioctlsocket(hSocket, FIONBIO, &nOne) == SOCKET_ERROR)
|
|
printf("ConnectSocket() : ioctlsocket nonblocking setting failed, error %d\n", WSAGetLastError());
|
|
#else
|
|
if (fcntl(hSocket, F_SETFL, O_NONBLOCK) == SOCKET_ERROR)
|
|
printf("ConnectSocket() : fcntl nonblocking setting failed, error %d\n", errno);
|
|
#endif
|
|
|
|
// Add node
|
|
CNode* pnode = new CNode(hSocket, addrConnect, false);
|
|
if (nTimeout != 0)
|
|
pnode->AddRef(nTimeout);
|
|
else
|
|
pnode->AddRef();
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
vNodes.push_back(pnode);
|
|
|
|
pnode->nTimeConnected = GetTime();
|
|
return pnode;
|
|
}
|
|
else
|
|
{
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
void CNode::CloseSocketDisconnect()
|
|
{
|
|
fDisconnect = true;
|
|
if (hSocket != INVALID_SOCKET)
|
|
{
|
|
if (fDebug)
|
|
printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
|
|
printf("disconnecting node %s\n", addr.ToStringLog().c_str());
|
|
closesocket(hSocket);
|
|
hSocket = INVALID_SOCKET;
|
|
}
|
|
}
|
|
|
|
void CNode::Cleanup()
|
|
{
|
|
// All of a nodes broadcasts and subscriptions are automatically torn down
|
|
// when it goes down, so a node has to stay up to keep its broadcast going.
|
|
|
|
// Cancel subscriptions
|
|
for (unsigned int nChannel = 0; nChannel < vfSubscribe.size(); nChannel++)
|
|
if (vfSubscribe[nChannel])
|
|
CancelSubscribe(nChannel);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void ThreadSocketHandler(void* parg)
|
|
{
|
|
IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
|
|
try
|
|
{
|
|
vnThreadsRunning[0]++;
|
|
ThreadSocketHandler2(parg);
|
|
vnThreadsRunning[0]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[0]--;
|
|
PrintException(&e, "ThreadSocketHandler()");
|
|
} catch (...) {
|
|
vnThreadsRunning[0]--;
|
|
throw; // support pthread_cancel()
|
|
}
|
|
printf("ThreadSocketHandler exiting\n");
|
|
}
|
|
|
|
void ThreadSocketHandler2(void* parg)
|
|
{
|
|
printf("ThreadSocketHandler started\n");
|
|
list<CNode*> vNodesDisconnected;
|
|
int nPrevNodeCount = 0;
|
|
|
|
loop
|
|
{
|
|
//
|
|
// Disconnect nodes
|
|
//
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
// Disconnect unused nodes
|
|
vector<CNode*> vNodesCopy = vNodes;
|
|
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());
|
|
|
|
// 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;
|
|
foreach(CNode* pnode, vNodesDisconnectedCopy)
|
|
{
|
|
// wait until threads are done using it
|
|
if (pnode->GetRefCount() <= 0)
|
|
{
|
|
bool fDelete = false;
|
|
TRY_CRITICAL_BLOCK(pnode->cs_vSend)
|
|
TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
|
|
TRY_CRITICAL_BLOCK(pnode->cs_mapRequests)
|
|
TRY_CRITICAL_BLOCK(pnode->cs_inventory)
|
|
fDelete = true;
|
|
if (fDelete)
|
|
{
|
|
vNodesDisconnected.remove(pnode);
|
|
delete pnode;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (vNodes.size() != nPrevNodeCount)
|
|
{
|
|
nPrevNodeCount = vNodes.size();
|
|
MainFrameRepaint();
|
|
}
|
|
|
|
|
|
//
|
|
// 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;
|
|
FD_SET(hListenSocket, &fdsetRecv);
|
|
hSocketMax = max(hSocketMax, hListenSocket);
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
foreach(CNode* pnode, vNodes)
|
|
{
|
|
if (pnode->hSocket == INVALID_SOCKET || pnode->hSocket < 0)
|
|
continue;
|
|
FD_SET(pnode->hSocket, &fdsetRecv);
|
|
FD_SET(pnode->hSocket, &fdsetError);
|
|
hSocketMax = max(hSocketMax, pnode->hSocket);
|
|
TRY_CRITICAL_BLOCK(pnode->cs_vSend)
|
|
if (!pnode->vSend.empty())
|
|
FD_SET(pnode->hSocket, &fdsetSend);
|
|
}
|
|
}
|
|
|
|
vnThreadsRunning[0]--;
|
|
int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
|
|
vnThreadsRunning[0]++;
|
|
if (fShutdown)
|
|
return;
|
|
if (nSelect == SOCKET_ERROR)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
printf("socket select error %d\n", nErr);
|
|
for (int i = 0; i <= hSocketMax; i++)
|
|
FD_SET(i, &fdsetRecv);
|
|
FD_ZERO(&fdsetSend);
|
|
FD_ZERO(&fdsetError);
|
|
Sleep(timeout.tv_usec/1000);
|
|
}
|
|
|
|
|
|
//
|
|
// Accept new connections
|
|
//
|
|
if (FD_ISSET(hListenSocket, &fdsetRecv))
|
|
{
|
|
struct sockaddr_in sockaddr;
|
|
socklen_t len = sizeof(sockaddr);
|
|
SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
|
|
CAddress addr(sockaddr);
|
|
if (hSocket == INVALID_SOCKET)
|
|
{
|
|
if (WSAGetLastError() != WSAEWOULDBLOCK)
|
|
printf("socket error accept failed: %d\n", WSAGetLastError());
|
|
}
|
|
else if (mapArgs.count("-maxconnections") && (int)vNodes.size() >= atoi(mapArgs["-maxconnections"]) - MAX_OUTBOUND_CONNECTIONS)
|
|
{
|
|
closesocket(hSocket);
|
|
}
|
|
else
|
|
{
|
|
printf("accepted connection %s\n", addr.ToStringLog().c_str());
|
|
CNode* pnode = new CNode(hSocket, addr, true);
|
|
pnode->AddRef();
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
vNodes.push_back(pnode);
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Service each socket
|
|
//
|
|
vector<CNode*> vNodesCopy;
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
vNodesCopy = vNodes;
|
|
foreach(CNode* pnode, vNodesCopy)
|
|
pnode->AddRef();
|
|
}
|
|
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_CRITICAL_BLOCK(pnode->cs_vRecv)
|
|
{
|
|
CDataStream& vRecv = pnode->vRecv;
|
|
unsigned int nPos = vRecv.size();
|
|
|
|
// 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_CRITICAL_BLOCK(pnode->cs_vSend)
|
|
{
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
foreach(CNode* pnode, vNodesCopy)
|
|
pnode->Release();
|
|
}
|
|
|
|
Sleep(10);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
unsigned int pnSeed[] =
|
|
{
|
|
// 2010/06
|
|
0x35218252, 0x9c9c9618, 0xda6bacad, 0xb9aca862, 0x97c235c6,
|
|
0x146f9562, 0xb67b9e4b, 0x87cf4bc0, 0xb83945d0, 0x984333ad,
|
|
0xbbeec555, 0x6f0eb440, 0xe0005318, 0x7797e460, 0xddc60fcc,
|
|
0xb3bbd24a, 0x1ac85746, 0x641846a6, 0x85ee1155, 0xbb2e7a4c,
|
|
0x9cb8514b, 0xfc342648, 0x62958fae, 0xd0a8c87a, 0xa800795b,
|
|
0xda8c814e, 0x256a0c80, 0x3f23ec63, 0xd565df43, 0x997d9044,
|
|
0xaa121448, 0xbed8688e, 0x59d09a5e, 0xb2931243, 0x3730ba18,
|
|
0xdd3462d0, 0x4e4d1448, 0x171df645, 0x84ee1155,
|
|
0x248ac445, 0x0e634444, 0x0ded1b63, 0x30c01e60,
|
|
0xa2b9a094, 0x29e4fd43, 0x9ce61b4c, 0xdae09744,
|
|
|
|
// 2010/08
|
|
0x5ae6bf43, 0x460be257, 0x7245c0cf, 0x4e0f028d, 0x26501760, 0x38643255, 0x67094f4f, 0x480449b8,
|
|
0x16545143, 0x1f082e5a, 0xaa428018, 0xe411e793, 0x14c1f862, 0x2726105b, 0x9b33ea50, 0xeeef86ca,
|
|
0xe3210d44, 0x0dca8b63, 0x3f9dfb18, 0x860340ad, 0xf33ba17a, 0x9018375c, 0x1de4e353, 0x0fa52dcb,
|
|
0x89c4555b, 0x109cf37b, 0x28c55b40, 0x04c801ae, 0x275c1e80, 0x6f7f745d, 0x7a2a5653, 0xa28e26d8,
|
|
0xa4e65db2, 0x99a06580, 0xf253ba44, 0x82cf6ab8, 0x859c2e8e, 0xf71a815d, 0xc18f1454, 0x71c8a943,
|
|
0x90d24e18, 0x311789b2, 0x74aba645, 0xde0bbfc3, 0xad724fad, 0xbf1ae15e, 0xbaa6fb54, 0x06e4d145,
|
|
0x51528645, 0x72120cd4, 0xd4cfd145, 0x0a7afed8, 0x9b9a5fad, 0x9e9ff45e, 0x10128355, 0xd44e8646,
|
|
0x04a07b47, 0x5fc9d547, 0xe0491e45, 0xbac21b41, 0x7aa31bae, 0x10483c5f, 0x94a23055, 0x73d9dc47,
|
|
0x1a99c247, 0x822fe847, 0x7e57ba48, 0xb19ea843, 0xa60621b2, 0x778cf163, 0x125c6556, 0xf94ba44f,
|
|
0xa61a0948, 0x6c839e4b, 0x29af5348, 0x68d84845, 0x752b95c3, 0xcf0d4663, 0x08e11e56, 0x75109550,
|
|
0x5f24b94c, 0x42426d4d, 0xfbbc0a4c, 0x70a9a246, 0xda7837cb, 0xae2a986d, 0xe283c358, 0x0c7ca954,
|
|
0x8e9bde59, 0x61521760, 0x6884444c, 0xa194e548, 0x9b8809cc, 0x16e96a8f, 0x956ff859, 0xfad5e555,
|
|
0x0ea70c80, 0x5b4ce26d, 0x7984444c, 0x1080d24a, 0x22a686cf, 0x6bf8c2ad, 0xb0f7485f, 0x06b66e56,
|
|
0x668373bc, 0x75506279, 0x3868694e, 0x12a5954b, 0x3a8b62d1, 0xb74fcbad, 0xa7dc3360, 0xc070b359,
|
|
0xa2b87242, 0xc45cab7c, 0x69882050, 0x14a5464b, 0x386acad5, 0x80b85db2, 0x1f78a062, 0xc608c55b,
|
|
0x4257d543, 0x7636ad80, 0x4432d655, 0xb2114d4b, 0x32639bd9, 0xadd75db2, 0x9be5a362, 0x6831bc5e,
|
|
0xf7f77046, 0x8f35ba81, 0x09bb4e59, 0xd0fb6b4e, 0xc5daa445, 0x9c611618, 0x355dcc62, 0xf2cf435e,
|
|
0x31e72c46, 0xdd8a43ad, 0x171f9c5b, 0xb4c2e355, 0xbe8af945, 0x613d3942, 0xe6f9e863, 0x7a3d855f,
|
|
0xa66adc47, 0x261089b2, 0x5a27105b, 0x6c28105b, 0xdd247946, 0xe6c3a445, 0x43a1ec63, 0x99b4dd5f,
|
|
0xb6834347, 0x5e9649bc, 0xf9dd545d, 0x6ae4c15b, 0xa5318a47, 0x7984ec47, 0x93a73b63, 0x0c60195f,
|
|
0xa5c85e4b, 0xa0a36dc2, 0x0739a95e, 0x3d44c15b, 0xfb940f4b, 0xd67c9148, 0x614f9876, 0x0a241c5f,
|
|
0xad9da74c, 0x4459abc8, 0x12e71b5f, 0x1c534a5d, 0x8ff5fc50, 0x2ca8864b, 0xd894fd80, 0x82ab3160,
|
|
0x390d804e, 0x2cf310cc, 0x680dad80, 0x691be15e, 0x5a8f4652, 0xaad0784d, 0x0d2431ad,
|
|
};
|
|
|
|
|
|
|
|
void ThreadOpenConnections(void* parg)
|
|
{
|
|
IMPLEMENT_RANDOMIZE_STACK(ThreadOpenConnections(parg));
|
|
try
|
|
{
|
|
vnThreadsRunning[1]++;
|
|
ThreadOpenConnections2(parg);
|
|
vnThreadsRunning[1]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[1]--;
|
|
PrintException(&e, "ThreadOpenConnections()");
|
|
} catch (...) {
|
|
vnThreadsRunning[1]--;
|
|
PrintException(NULL, "ThreadOpenConnections()");
|
|
}
|
|
printf("ThreadOpenConnections exiting\n");
|
|
}
|
|
|
|
void ThreadOpenConnections2(void* parg)
|
|
{
|
|
printf("ThreadOpenConnections started\n");
|
|
|
|
// Connect to specific addresses
|
|
if (mapArgs.count("-connect"))
|
|
{
|
|
for (int64 nLoop = 0;; nLoop++)
|
|
{
|
|
foreach(string strAddr, mapMultiArgs["-connect"])
|
|
{
|
|
CAddress addr(strAddr, NODE_NETWORK);
|
|
if (addr.IsValid())
|
|
OpenNetworkConnection(addr);
|
|
for (int i = 0; i < 10 && i < nLoop; i++)
|
|
{
|
|
Sleep(500);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Connect to manually added nodes first
|
|
if (mapArgs.count("-addnode"))
|
|
{
|
|
foreach(string strAddr, mapMultiArgs["-addnode"])
|
|
{
|
|
CAddress addr(strAddr, NODE_NETWORK);
|
|
if (addr.IsValid())
|
|
{
|
|
OpenNetworkConnection(addr);
|
|
Sleep(500);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Initiate network connections
|
|
int64 nStart = GetTime();
|
|
loop
|
|
{
|
|
// Limit outbound connections
|
|
vnThreadsRunning[1]--;
|
|
Sleep(500);
|
|
loop
|
|
{
|
|
int nOutbound = 0;
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
if (!pnode->fInbound)
|
|
nOutbound++;
|
|
int nMaxOutboundConnections = MAX_OUTBOUND_CONNECTIONS;
|
|
if (mapArgs.count("-maxconnections"))
|
|
nMaxOutboundConnections = min(nMaxOutboundConnections, atoi(mapArgs["-maxconnections"]));
|
|
if (nOutbound < nMaxOutboundConnections)
|
|
break;
|
|
Sleep(2000);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
vnThreadsRunning[1]++;
|
|
if (fShutdown)
|
|
return;
|
|
|
|
CRITICAL_BLOCK(cs_mapAddresses)
|
|
{
|
|
// Add seed nodes if IRC isn't working
|
|
static bool fSeedUsed;
|
|
bool fTOR = (fUseProxy && addrProxy.port == htons(9050));
|
|
if (mapAddresses.empty() && (GetTime() - nStart > 60 || fTOR) && !fTestNet)
|
|
{
|
|
for (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.
|
|
CAddress addr;
|
|
addr.ip = pnSeed[i];
|
|
addr.nTime = 0;
|
|
AddAddress(addr);
|
|
}
|
|
fSeedUsed = true;
|
|
}
|
|
|
|
if (fSeedUsed && mapAddresses.size() > ARRAYLEN(pnSeed) + 100)
|
|
{
|
|
// Disconnect seed nodes
|
|
set<unsigned int> setSeed(pnSeed, pnSeed + ARRAYLEN(pnSeed));
|
|
static int64 nSeedDisconnected;
|
|
if (nSeedDisconnected == 0)
|
|
{
|
|
nSeedDisconnected = GetTime();
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
if (setSeed.count(pnode->addr.ip))
|
|
pnode->fDisconnect = true;
|
|
}
|
|
|
|
// Keep setting timestamps to 0 so they won't reconnect
|
|
if (GetTime() - nSeedDisconnected < 60 * 60)
|
|
{
|
|
foreach(PAIRTYPE(const vector<unsigned char>, CAddress)& item, mapAddresses)
|
|
{
|
|
if (setSeed.count(item.second.ip))
|
|
{
|
|
item.second.nTime = 0;
|
|
CAddrDB().WriteAddress(item.second);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//
|
|
// Choose an address to connect to based on most recently seen
|
|
//
|
|
CAddress addrConnect;
|
|
int64 nBest = INT64_MIN;
|
|
|
|
// Only connect to one address per a.b.?.? range.
|
|
// Do this here so we don't have to critsect vNodes inside mapAddresses critsect.
|
|
set<unsigned int> setConnected;
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
foreach(CNode* pnode, vNodes)
|
|
setConnected.insert(pnode->addr.ip & 0x0000ffff);
|
|
|
|
CRITICAL_BLOCK(cs_mapAddresses)
|
|
{
|
|
foreach(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
|
|
{
|
|
const CAddress& addr = item.second;
|
|
if (!addr.IsIPv4() || !addr.IsValid() || setConnected.count(addr.ip & 0x0000ffff))
|
|
continue;
|
|
int64 nSinceLastSeen = GetAdjustedTime() - addr.nTime;
|
|
int64 nSinceLastTry = GetAdjustedTime() - addr.nLastTry;
|
|
|
|
// Randomize the order in a deterministic way, putting the standard port first
|
|
int64 nRandomizer = (uint64)(nStart * 4951 + addr.nLastTry * 9567851 + addr.ip * 7789) % (2 * 60 * 60);
|
|
if (addr.port != GetDefaultPort())
|
|
nRandomizer += 2 * 60 * 60;
|
|
|
|
// Last seen Base retry frequency
|
|
// <1 hour 10 min
|
|
// 1 hour 1 hour
|
|
// 4 hours 2 hours
|
|
// 24 hours 5 hours
|
|
// 48 hours 7 hours
|
|
// 7 days 13 hours
|
|
// 30 days 27 hours
|
|
// 90 days 46 hours
|
|
// 365 days 93 hours
|
|
int64 nDelay = (int64)(3600.0 * sqrt(fabs((double)nSinceLastSeen) / 3600.0) + nRandomizer);
|
|
|
|
// Fast reconnect for one hour after last seen
|
|
if (nSinceLastSeen < 60 * 60)
|
|
nDelay = 10 * 60;
|
|
|
|
// Limit retry frequency
|
|
if (nSinceLastTry < nDelay)
|
|
continue;
|
|
|
|
// If we have IRC, we'll be notified when they first come online,
|
|
// and again every 24 hours by the refresh broadcast.
|
|
if (nGotIRCAddresses > 0 && vNodes.size() >= 2 && nSinceLastSeen > 24 * 60 * 60)
|
|
continue;
|
|
|
|
// Only try the old stuff if we don't have enough connections
|
|
if (vNodes.size() >= 8 && nSinceLastSeen > 24 * 60 * 60)
|
|
continue;
|
|
|
|
// If multiple addresses are ready, prioritize by time since
|
|
// last seen and time since last tried.
|
|
int64 nScore = min(nSinceLastTry, (int64)24 * 60 * 60) - nSinceLastSeen - nRandomizer;
|
|
if (nScore > nBest)
|
|
{
|
|
nBest = nScore;
|
|
addrConnect = addr;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (addrConnect.IsValid())
|
|
OpenNetworkConnection(addrConnect);
|
|
}
|
|
}
|
|
|
|
bool OpenNetworkConnection(const CAddress& addrConnect)
|
|
{
|
|
//
|
|
// Initiate outbound network connection
|
|
//
|
|
if (fShutdown)
|
|
return false;
|
|
if (addrConnect.ip == addrLocalHost.ip || !addrConnect.IsIPv4() || FindNode(addrConnect.ip))
|
|
return false;
|
|
|
|
vnThreadsRunning[1]--;
|
|
CNode* pnode = ConnectNode(addrConnect);
|
|
vnThreadsRunning[1]++;
|
|
if (fShutdown)
|
|
return false;
|
|
if (!pnode)
|
|
return false;
|
|
pnode->fNetworkNode = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void ThreadMessageHandler(void* parg)
|
|
{
|
|
IMPLEMENT_RANDOMIZE_STACK(ThreadMessageHandler(parg));
|
|
try
|
|
{
|
|
vnThreadsRunning[2]++;
|
|
ThreadMessageHandler2(parg);
|
|
vnThreadsRunning[2]--;
|
|
}
|
|
catch (std::exception& e) {
|
|
vnThreadsRunning[2]--;
|
|
PrintException(&e, "ThreadMessageHandler()");
|
|
} catch (...) {
|
|
vnThreadsRunning[2]--;
|
|
PrintException(NULL, "ThreadMessageHandler()");
|
|
}
|
|
printf("ThreadMessageHandler exiting\n");
|
|
}
|
|
|
|
void ThreadMessageHandler2(void* parg)
|
|
{
|
|
printf("ThreadMessageHandler started\n");
|
|
SetThreadPriority(THREAD_PRIORITY_BELOW_NORMAL);
|
|
while (!fShutdown)
|
|
{
|
|
vector<CNode*> vNodesCopy;
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
vNodesCopy = vNodes;
|
|
foreach(CNode* pnode, vNodesCopy)
|
|
pnode->AddRef();
|
|
}
|
|
|
|
// Poll the connected nodes for messages
|
|
CNode* pnodeTrickle = NULL;
|
|
if (!vNodesCopy.empty())
|
|
pnodeTrickle = vNodesCopy[GetRand(vNodesCopy.size())];
|
|
foreach(CNode* pnode, vNodesCopy)
|
|
{
|
|
// Receive messages
|
|
TRY_CRITICAL_BLOCK(pnode->cs_vRecv)
|
|
ProcessMessages(pnode);
|
|
if (fShutdown)
|
|
return;
|
|
|
|
// Send messages
|
|
TRY_CRITICAL_BLOCK(pnode->cs_vSend)
|
|
SendMessages(pnode, pnode == pnodeTrickle);
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
|
|
CRITICAL_BLOCK(cs_vNodes)
|
|
{
|
|
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[2]--;
|
|
Sleep(100);
|
|
if (fRequestShutdown)
|
|
Shutdown(NULL);
|
|
vnThreadsRunning[2]++;
|
|
if (fShutdown)
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
bool BindListenPort(string& strError)
|
|
{
|
|
strError = "";
|
|
int nOne = 1;
|
|
addrLocalHost.port = GetDefaultPort();
|
|
|
|
#ifdef __WXMSW__
|
|
// 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
|
|
hListenSocket = socket(AF_INET, 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 BSD
|
|
// Different way of disabling SIGPIPE on BSD
|
|
setsockopt(hListenSocket, SOL_SOCKET, SO_NOSIGPIPE, (void*)&nOne, sizeof(int));
|
|
#endif
|
|
|
|
#ifndef __WXMSW__
|
|
// 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 __WXMSW__
|
|
// Set to nonblocking, 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;
|
|
}
|
|
|
|
// The sockaddr_in structure specifies the address family,
|
|
// IP address, and port for the socket that is being bound
|
|
struct sockaddr_in sockaddr;
|
|
memset(&sockaddr, 0, sizeof(sockaddr));
|
|
sockaddr.sin_family = AF_INET;
|
|
sockaddr.sin_addr.s_addr = INADDR_ANY; // bind to all IPs on this computer
|
|
sockaddr.sin_port = GetDefaultPort();
|
|
if (::bind(hListenSocket, (struct sockaddr*)&sockaddr, sizeof(sockaddr)) == SOCKET_ERROR)
|
|
{
|
|
int nErr = WSAGetLastError();
|
|
if (nErr == WSAEADDRINUSE)
|
|
strError = strprintf(_("Unable to bind to port %d on this computer. Bitcoin is probably already running."), ntohs(sockaddr.sin_port));
|
|
else
|
|
strError = strprintf("Error: Unable to bind to port %d on this computer (bind returned error %d)", ntohs(sockaddr.sin_port), nErr);
|
|
printf("%s\n", strError.c_str());
|
|
return false;
|
|
}
|
|
printf("Bound to port %d\n", ntohs(sockaddr.sin_port));
|
|
|
|
// 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;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void StartNode(void* parg)
|
|
{
|
|
if (pnodeLocalHost == NULL)
|
|
pnodeLocalHost = new CNode(INVALID_SOCKET, CAddress("127.0.0.1", nLocalServices));
|
|
|
|
#ifdef __WXMSW__
|
|
// Get local host ip
|
|
char pszHostName[1000] = "";
|
|
if (gethostname(pszHostName, sizeof(pszHostName)) != SOCKET_ERROR)
|
|
{
|
|
struct hostent* phostent = gethostbyname(pszHostName);
|
|
if (phostent)
|
|
{
|
|
// Take the first IP that isn't loopback 127.x.x.x
|
|
for (int i = 0; phostent->h_addr_list[i] != NULL; i++)
|
|
printf("host ip %d: %s\n", i, CAddress(*(unsigned int*)phostent->h_addr_list[i]).ToStringIP().c_str());
|
|
for (int i = 0; phostent->h_addr_list[i] != NULL; i++)
|
|
{
|
|
CAddress addr(*(unsigned int*)phostent->h_addr_list[i], GetDefaultPort(), nLocalServices);
|
|
if (addr.IsValid() && addr.GetByte(3) != 127)
|
|
{
|
|
addrLocalHost = addr;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#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;
|
|
char pszIP[100];
|
|
if (ifa->ifa_addr->sa_family == AF_INET)
|
|
{
|
|
struct sockaddr_in* s4 = (struct sockaddr_in*)(ifa->ifa_addr);
|
|
if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s4->sin_addr), pszIP, sizeof(pszIP)) != NULL)
|
|
printf("ipv4 %s: %s\n", ifa->ifa_name, pszIP);
|
|
|
|
// Take the first IP that isn't loopback 127.x.x.x
|
|
CAddress addr(*(unsigned int*)&s4->sin_addr, GetDefaultPort(), nLocalServices);
|
|
if (addr.IsValid() && addr.GetByte(3) != 127)
|
|
{
|
|
addrLocalHost = addr;
|
|
break;
|
|
}
|
|
}
|
|
else if (ifa->ifa_addr->sa_family == AF_INET6)
|
|
{
|
|
struct sockaddr_in6* s6 = (struct sockaddr_in6*)(ifa->ifa_addr);
|
|
if (inet_ntop(ifa->ifa_addr->sa_family, (void*)&(s6->sin6_addr), pszIP, sizeof(pszIP)) != NULL)
|
|
printf("ipv6 %s: %s\n", ifa->ifa_name, pszIP);
|
|
}
|
|
}
|
|
freeifaddrs(myaddrs);
|
|
}
|
|
#endif
|
|
printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
|
|
|
|
// Get our external IP address for incoming connections
|
|
if (fUseProxy)
|
|
{
|
|
// Proxies can't take incoming connections
|
|
addrLocalHost.ip = CAddress("0.0.0.0").ip;
|
|
printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
|
|
}
|
|
else
|
|
{
|
|
if (addrIncoming.IsValid())
|
|
addrLocalHost.ip = addrIncoming.ip;
|
|
|
|
if (GetMyExternalIP(addrLocalHost.ip))
|
|
{
|
|
addrIncoming = addrLocalHost;
|
|
CWalletDB().WriteSetting("addrIncoming", addrIncoming);
|
|
printf("addrLocalHost = %s\n", addrLocalHost.ToString().c_str());
|
|
}
|
|
}
|
|
|
|
//
|
|
// Start threads
|
|
//
|
|
|
|
// Get addresses from IRC and advertise ours
|
|
if (!CreateThread(ThreadIRCSeed, NULL))
|
|
printf("Error: CreateThread(ThreadIRCSeed) failed\n");
|
|
|
|
// Send and receive from sockets, accept connections
|
|
pthread_t hThreadSocketHandler = CreateThread(ThreadSocketHandler, NULL, true);
|
|
|
|
// Initiate outbound connections
|
|
if (!CreateThread(ThreadOpenConnections, NULL))
|
|
printf("Error: CreateThread(ThreadOpenConnections) failed\n");
|
|
|
|
// Process messages
|
|
if (!CreateThread(ThreadMessageHandler, NULL))
|
|
printf("Error: CreateThread(ThreadMessageHandler) failed\n");
|
|
|
|
// Generate coins in the background
|
|
GenerateBitcoins(fGenerateBitcoins);
|
|
}
|
|
|
|
bool StopNode()
|
|
{
|
|
printf("StopNode()\n");
|
|
fShutdown = true;
|
|
nTransactionsUpdated++;
|
|
int64 nStart = GetTime();
|
|
while (vnThreadsRunning[0] > 0 || vnThreadsRunning[2] > 0 || vnThreadsRunning[3] > 0 || vnThreadsRunning[4] > 0)
|
|
{
|
|
if (GetTime() - nStart > 20)
|
|
break;
|
|
Sleep(20);
|
|
}
|
|
if (vnThreadsRunning[0] > 0) printf("ThreadSocketHandler still running\n");
|
|
if (vnThreadsRunning[1] > 0) printf("ThreadOpenConnections still running\n");
|
|
if (vnThreadsRunning[2] > 0) printf("ThreadMessageHandler still running\n");
|
|
if (vnThreadsRunning[3] > 0) printf("ThreadBitcoinMiner still running\n");
|
|
if (vnThreadsRunning[4] > 0) printf("ThreadRPCServer still running\n");
|
|
while (vnThreadsRunning[2] > 0 || vnThreadsRunning[4] > 0)
|
|
Sleep(20);
|
|
Sleep(50);
|
|
|
|
return true;
|
|
}
|
|
|
|
class CNetCleanup
|
|
{
|
|
public:
|
|
CNetCleanup()
|
|
{
|
|
}
|
|
~CNetCleanup()
|
|
{
|
|
// Close sockets
|
|
foreach(CNode* pnode, vNodes)
|
|
if (pnode->hSocket != INVALID_SOCKET)
|
|
closesocket(pnode->hSocket);
|
|
if (hListenSocket != INVALID_SOCKET)
|
|
if (closesocket(hListenSocket) == SOCKET_ERROR)
|
|
printf("closesocket(hListenSocket) failed with error %d\n", WSAGetLastError());
|
|
|
|
#ifdef __WXMSW__
|
|
// Shutdown Windows Sockets
|
|
WSACleanup();
|
|
#endif
|
|
}
|
|
}
|
|
instance_of_cnetcleanup;
|