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net.cpp
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net.cpp
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/*******************************************************************************************
Hash(BEGIN(Satoshi[2010]), END(Sunny[2012])) == Videlicet[2014] ++
[Learn and Create] Viz. http://www.opensource.org/licenses/mit-license.php
*******************************************************************************************/
#include "net.h"
#include "addrman.h"
#include "../main.h"
#include "../util/strlcpy.h"
#include "../util/ui_interface.h"
#include "../wallet/db.h"
#include "../core/unifiedtime.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;
boost::array<int, THREAD_MAX> vnThreadsRunning;
namespace Net
{
static const int MAX_OUTBOUND_CONNECTIONS = GetArg("-maxoutbound", 16);
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, bool fUseGrant = true);
//
// Global state variables
//
bool fClient = false;
bool fAllowDNS = false;
static bool fUseUPnP = false;
uint64 nLocalServices = (fClient ? 0 : NODE_NETWORK);
CAddress addrLocalHost(CService("0.0.0.0", 0), nLocalServices);
CAddress addrSeenByPeer(CService("0.0.0.0", 0), nLocalServices);
static CNode* pnodeLocalHost = NULL;
uint64 nLocalHostNonce = 0;
static SOCKET hListenSocket = INVALID_SOCKET;
CAddrMan addrman;
vector<CNode*> vNodes;
CCriticalSection cs_vNodes;
map<CInv, CDataStream> mapRelay;
deque<pair<int64, CInv> > vRelayExpiration;
CCriticalSection cs_mapRelay;
map<CInv, int64> mapAlreadyAskedFor;
set<CNetAddr> setservAddNodeAddresses;
CCriticalSection cs_setservAddNodeAddresses;
static CSemaphore *semOutbound = NULL;
unsigned short GetListenPort()
{
return (unsigned short)(GetArg("-port", GetDefaultPort()));
}
void CNode::PushGetBlocks(Core::CBlockIndex* pindexBegin, uint1024 hashEnd)
{
// Filter out duplicate requests
if (pindexBegin == pindexLastGetBlocksBegin && hashEnd == hashLastGetBlocksEnd && GetUnifiedTimestamp() - nLastGetBlocks < 3)
return;
pindexLastGetBlocksBegin = pindexBegin;
hashLastGetBlocksEnd = hashEnd;
nLastGetBlocks = GetUnifiedTimestamp();
PushMessage("getblocks", Core::CBlockLocator(pindexBegin), hashEnd);
}
bool RecvLine(SOCKET hSocket, string& strLine)
{
strLine = "";
loop() {
Sleep(1);
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;
}
}
}
}
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;
if (fNoListen||fUseProxy)
return false;
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 webserver 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)
{
// Fallback in case IRC fails to get it
if (GetMyExternalIP(addrLocalHost))
{
printf("GetMyExternalIP() returned %s\n", addrLocalHost.ToStringIP().c_str());
if (addrLocalHost.IsRoutable())
{
// If we already connected to a few before we had our IP, go back and addr them.
// setAddrKnown automatically filters any duplicate sends.
CAddress addr(addrLocalHost);
addr.nTime = GetUnifiedTimestamp();
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
pnode->PushAddress(addr);
}
}
}
}
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(const CService& addr)
{
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
if ((CService)pnode->addr == addr)
return (pnode);
}
return NULL;
}
CNode* ConnectNode(CAddress addrConnect, int64 nTimeout)
{
if ((CNetAddr)addrConnect == (CNetAddr)addrLocalHost)
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",
addrConnect.ToString().c_str(),
(double)(addrConnect.nTime - GetUnifiedTimestamp())/3600.0);
addrman.Attempt(addrConnect);
// Connect
SOCKET hSocket;
if (ConnectSocket(addrConnect, hSocket))
{
/// debug print
printf("connected %s\n", addrConnect.ToString().c_str());
// Set to nonblocking
#ifdef WIN32
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();
{
LOCK(cs_vNodes);
vNodes.push_back(pnode);
}
pnode->nTimeConnected = GetUnifiedTimestamp();
return pnode;
}
else
{
return NULL;
}
}
void CNode::CloseSocketDisconnect()
{
fDisconnect = true;
if (hSocket != INVALID_SOCKET)
{
if (fDebug)
printf("%s ", DateTimeStrFormat(GetUnifiedTimestamp()).c_str());
printf("disconnecting node %s\n", addr.ToString().c_str());
closesocket(hSocket);
hSocket = INVALID_SOCKET;
vRecv.clear();
}
}
void CNode::Cleanup()
{
}
void CNode::PushVersion()
{
int64 nTime = GetUnifiedTimestamp();
CAddress addrYou = (fUseProxy ? CAddress(CService("0.0.0.0",0)) : addr);
CAddress addrMe = (fUseProxy || !addrLocalHost.IsRoutable() ? CAddress(CService("0.0.0.0",0)) : addrLocalHost);
RAND_bytes((unsigned char*)&nLocalHostNonce, sizeof(nLocalHostNonce));
PushMessage("version", PROTOCOL_VERSION, nLocalServices, nTime, addrYou, addrMe,
nLocalHostNonce, FormatSubVersion(CLIENT_NAME, DATABASE_VERSION, std::vector<string>()), Core::nBestHeight);
}
std::map<CNetAddr, int64> CNode::setBanned;
CCriticalSection CNode::cs_setBanned;
void CNode::ClearBanned()
{
setBanned.clear();
}
bool CNode::IsBanned(CNetAddr ip)
{
/* Check the Banned List. */
const std::vector<std::string>& vBanned = mapMultiArgs["-banned"];
for(auto node : vBanned)
if(ip.ToStringIP() == node)
return true;
bool fResult = false;
{
LOCK(cs_setBanned);
std::map<CNetAddr, int64>::iterator i = setBanned.find(ip);
if (i != setBanned.end())
{
int64 t = (*i).second;
if (GetUnifiedTimestamp() < t)
fResult = true;
}
}
return fResult;
}
bool CNode::Misbehaving(int howmuch, std::string strMessage)
{
if(strMessage != "")
printf("\x1b[31m WARNING: %s \x1b[0m\n", strMessage.c_str());
if (addr.IsLocal())
{
printf("Warning: local node %s misbehaving\n", addr.ToString().c_str());
return false;
}
nMisbehavior += howmuch;
if (nMisbehavior >= GetArg("-banscore", 100))
{
int64 banTime = GetUnifiedTimestamp() + GetArg("-bantime", 60 * 60 * 24); // Default 24-hour ban
{
LOCK(cs_setBanned);
if (setBanned[addr] < banTime)
setBanned[addr] = banTime;
}
CloseSocketDisconnect();
printf("Disconnected %s for misbehavior (score=%d)\n", addr.ToString().c_str(), nMisbehavior);
return true;
}
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)
{
IMPLEMENT_RANDOMIZE_STACK(ThreadSocketHandler(parg));
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 exiting\n");
}
list<CNode*> vNodesDisconnected;
void ThreadSocketHandler2(void* parg)
{
printf("ThreadSocketHandler started\n");
unsigned int nPrevNodeCount = 0;
loop() {
Sleep(1);
//
// 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());
if (pnode->fHasGrant)
semOutbound->post();
pnode->fHasGrant = false;
// close socket and cleanup
pnode->CloseSocketDisconnect();
pnode->Cleanup();
// hold in disconnected pool until all refs are released
pnode->nReleaseTime = max(pnode->nReleaseTime, GetUnifiedTimestamp() + 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();
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;
if(hListenSocket != INVALID_SOCKET)
FD_SET(hListenSocket, &fdsetRecv);
hSocketMax = max(hSocketMax, hListenSocket);
{
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);
{
TRY_LOCK(pnode->cs_vSend, lockSend);
if (lockSend && !pnode->vSend.empty())
FD_SET(pnode->hSocket, &fdsetSend);
}
}
}
vnThreadsRunning[THREAD_SOCKETHANDLER]--;
int nSelect = select(hSocketMax + 1, &fdsetRecv, &fdsetSend, &fdsetError, &timeout);
vnThreadsRunning[THREAD_SOCKETHANDLER]++;
if (fShutdown)
return;
if (nSelect == SOCKET_ERROR)
{
int nErr = WSAGetLastError();
if (hSocketMax != INVALID_SOCKET)
{
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
//
if (hListenSocket != INVALID_SOCKET && FD_ISSET(hListenSocket, &fdsetRecv))
{
struct sockaddr_in sockaddr;
socklen_t len = sizeof(sockaddr);
SOCKET hSocket = accept(hListenSocket, (struct sockaddr*)&sockaddr, &len);
CAddress addr;
int nInbound = 0;
if (hSocket != INVALID_SOCKET)
addr = CAddress(sockaddr);
{
LOCK(cs_vNodes);
BOOST_FOREACH(CNode* pnode, vNodes)
if (pnode->fInbound)
nInbound++;
}
if (hSocket == INVALID_SOCKET)
{
if (WSAGetLastError() != WSAEWOULDBLOCK)
printf("socket error accept failed: %d\n", WSAGetLastError());
}
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)
{
Sleep(1);
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 (%d 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);
std::copy(&pchBuf[0], &pchBuf[0] + nBytes, &vRecv[nPos]);
pnode->nLastRecv = GetUnifiedTimestamp();
}
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 = GetUnifiedTimestamp();
}
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();
}
}
if (vSend.size() > SendBufferSize()) {
if (!pnode->fDisconnect)
printf("socket send flood control disconnect (%d bytes)\n", vSend.size());
pnode->CloseSocketDisconnect();
}
}
}
}
//
// Inactivity checking
//
if (pnode->vSend.empty())
pnode->nLastSendEmpty = GetUnifiedTimestamp();
if (GetUnifiedTimestamp() - 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 (GetUnifiedTimestamp() - pnode->nLastSend > GetArg("-timeout", 120) && GetUnifiedTimestamp() - pnode->nLastRecv > GetArg("-timeout", 120))
{
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)
{
IMPLEMENT_RANDOMIZE_STACK(ThreadMapPort(parg));
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 exiting\n");
}
void ThreadMapPort2(void* parg)
{
printf("ThreadMapPort started\n");
char port[6];
sprintf(port, "%d", 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);
#elif MINIUPNPC_API_VERSION < 14
/* miniupnpc 1.6 */
int error = 0;
devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, &error);
#else
/* miniupnpc 1.9.20150730 */
int error = 0;
devlist = upnpDiscover(2000, multicastif, minissdpdpath, 0, 0, 2, &error);
#endif
struct UPNPUrls urls;
struct IGDdatas data;
int r;
r = UPNP_GetValidIGD(devlist, &urls, &data, lanaddr, sizeof(lanaddr));
if (r == 1)
{
if (!addrLocalHost.IsRoutable())
{
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);
CAddress addrExternalFromUPnP(CService(externalIPAddress, 0), nLocalServices);
if (addrExternalFromUPnP.IsRoutable())
addrLocalHost = addrExternalFromUPnP;
}
else
printf("UPnP: GetExternalIPAddress failed.\n");
}
}
string strDesc = "Nexus " + FormatFullVersion();
#ifndef UPNPDISCOVER_SUCCESS
/* miniupnpc 1.5 */
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
port, port, lanaddr, strDesc.c_str(), "TCP", 0);
#else
/* miniupnpc 1.6 */
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
#endif
if(r!=UPNPCOMMAND_SUCCESS)
printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
port, port, 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, "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, port, lanaddr, strDesc.c_str(), "TCP", 0);
#else
/* miniupnpc 1.6 */
r = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype,
port, port, lanaddr, strDesc.c_str(), "TCP", 0, "0");
#endif
if(r!=UPNPCOMMAND_SUCCESS)
printf("AddPortMapping(%s, %s, %s) failed with code %d (%s)\n",
port, port, 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(bool fMapPort)
{
if (fUseUPnP != fMapPort)
{
fUseUPnP = fMapPort;
}
if (fUseUPnP && vnThreadsRunning[THREAD_UPNP] < 1)
{
if (!CreateThread(ThreadMapPort, NULL))
printf("Error: ThreadMapPort(ThreadMapPort) failed\n");
}
}
#else
void MapPort(bool /* unused fMapPort */)
{
// Intentionally left blank.
}
#endif