///////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void RefreshExternalIPThread()
{
Monitor.Enter(multiThreadLock);
OnDidBeginWorking();
NATPMP.natpmp_t natpmp = new NATPMP.natpmp_t();
NATPMP.natpmpresp_t response = new NATPMP.natpmpresp_t();
int r;
Win32.TimeValue timeout = new Win32.TimeValue();
Win32.FileDescriptorSet fds = new Win32.FileDescriptorSet(1);
bool didFail = false;
r = NATPMP.initnatpmp(ref natpmp);
if (r < 0)
{
didFail = true;
}
else
{
r = NATPMP.sendpublicaddressrequest(ref natpmp);
if (r < 0)
{
didFail = true;
}
else
{
do
{
fds.Count = 1;
fds.Array[0] = (IntPtr)natpmp.s;
NATPMP.getnatpmprequesttimeout(ref natpmp, ref timeout);
Win32.select(0, ref fds, IntPtr.Zero, IntPtr.Zero, ref timeout);
r = NATPMP.readnatpmpresponseorretry(ref natpmp, ref response);
if (refreshExternalIPThreadFlags != ThreadFlags.None)
{
DebugLog.WriteLine("NAT-PMP: RefreshExternalIPThread quit prematurely (1)");
Monitor.Exit(multiThreadLock);
if ((refreshExternalIPThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
Refresh();
}
NATPMP.closenatpmp(ref natpmp);
OnDidEndWorking();
return;
}
}
while (r == NATPMP.ERR_TRYAGAIN);
if (r < 0)
{
didFail = true;
DebugLog.WriteLine("NAT-PMP: IP refresh did time out");
}
else
{
IPAddress ipaddr = new IPAddress((long)response.pnu_publicaddress.addr);
OnDidGetExternalIPAddress(ipaddr);
}
}
}
NATPMP.closenatpmp(ref natpmp);
Monitor.Exit(multiThreadLock);
if (refreshExternalIPThreadFlags != ThreadFlags.None)
{
DebugLog.WriteLine("NAT-PMP: RefreshExternalIPThread quit prematurely (2)");
if ((refreshExternalIPThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
Refresh();
}
}
else
{
if (didFail)
{
OnDidFail();
}
else
{
UpdatePortMappings();
}
}
OnDidEndWorking();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#endregion
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#region Refresh External IP Thread
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void RefreshExternalIPThread()
{
Monitor.Enter(multiThreadLock);
OnDidBeginWorking();
NATPMP.natpmp_t natpmp = new NATPMP.natpmp_t();
NATPMP.natpmpresp_t response = new NATPMP.natpmpresp_t();
int r;
Win32.TimeValue timeout = new Win32.TimeValue();
Win32.FileDescriptorSet fds = new Win32.FileDescriptorSet(1);
bool didFail = false;
r = NATPMP.initnatpmp(ref natpmp);
if (r < 0)
{
didFail = true;
}
else
{
r = NATPMP.sendpublicaddressrequest(ref natpmp);
if (r < 0)
{
didFail = true;
}
else
{
do
{
fds.Count = 1;
fds.Array[0] = (IntPtr)natpmp.s;
NATPMP.getnatpmprequesttimeout(ref natpmp, ref timeout);
Win32.select(0, ref fds, IntPtr.Zero, IntPtr.Zero, ref timeout);
r = NATPMP.readnatpmpresponseorretry(ref natpmp, ref response);
if (refreshExternalIPThreadFlags != ThreadFlags.None)
{
DebugLog.WriteLine("NAT-PMP: RefreshExternalIPThread quit prematurely (1)");
Monitor.Exit(multiThreadLock);
if ((refreshExternalIPThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
Refresh();
}
NATPMP.closenatpmp(ref natpmp);
OnDidEndWorking();
return;
}
}while (r == NATPMP.ERR_TRYAGAIN);
if (r < 0)
{
didFail = true;
DebugLog.WriteLine("NAT-PMP: IP refresh did time out");
}
else
{
IPAddress ipaddr = new IPAddress((long)response.pnu_publicaddress.addr);
OnDidGetExternalIPAddress(ipaddr);
}
}
}
NATPMP.closenatpmp(ref natpmp);
Monitor.Exit(multiThreadLock);
if (refreshExternalIPThreadFlags != ThreadFlags.None)
{
DebugLog.WriteLine("NAT-PMP: RefreshExternalIPThread quit prematurely (2)");
if ((refreshExternalIPThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
Refresh();
}
}
else
{
if (didFail)
{
OnDidFail();
}
else
{
UpdatePortMappings();
}
}
OnDidEndWorking();
}
private bool ApplyPortMapping(PortMapping portMapping, bool remove, ref NATPMP.natpmp_t natpmp)
{
NATPMP.natpmpresp_t response = new NATPMP.natpmpresp_t();
int r;
Win32.TimeValue timeout = new Win32.TimeValue();
Win32.FileDescriptorSet fds = new Win32.FileDescriptorSet(1);
if (!remove)
{
portMapping.SetMappingStatus(PortMappingStatus.Trying);
}
PortMappingTransportProtocol protocol = portMapping.TransportProtocol;
for (int i = 1; i <= 2; i++)
{
PortMappingTransportProtocol currentProtocol;
if(i == 1)
currentProtocol = PortMappingTransportProtocol.UDP;
else
currentProtocol = PortMappingTransportProtocol.TCP;
if (protocol == currentProtocol || protocol == PortMappingTransportProtocol.Both)
{
r = NATPMP.sendnewportmappingrequest(ref natpmp,
(i == 1) ? NATPMP.PROTOCOL_UDP : NATPMP.PROTOCOL_TCP,
portMapping.LocalPort, portMapping.DesiredExternalPort, (uint)(remove ? 0 : 3600));
do
{
fds.Count = 1;
fds.Array[0] = (IntPtr)natpmp.s;
NATPMP.getnatpmprequesttimeout(ref natpmp, ref timeout);
Win32.select(0, ref fds, IntPtr.Zero, IntPtr.Zero, ref timeout);
r = NATPMP.readnatpmpresponseorretry(ref natpmp, ref response);
}
while(r == NATPMP.ERR_TRYAGAIN);
if (r < 0)
{
portMapping.SetMappingStatus(PortMappingStatus.Unmapped);
return false;
}
}
}
if (remove)
{
portMapping.SetMappingStatus(PortMappingStatus.Unmapped);
}
else
{
updateInterval = Math.Min(updateInterval, response.pnu_newportmapping.lifetime / 2);
if (updateInterval < 60)
{
DebugLog.WriteLine("NAT-PMP: ApplyPortMapping: Caution - new port mapping had a lifetime < 120 ({0})",
response.pnu_newportmapping.lifetime);
updateInterval = 60;
}
portMapping.SetExternalPort(response.pnu_newportmapping.mappedpublicport);
portMapping.SetMappingStatus(PortMappingStatus.Mapped);
}
return true;
}
private bool ApplyPortMapping(PortMapping portMapping, bool remove, ref NATPMP.natpmp_t natpmp)
{
NATPMP.natpmpresp_t response = new NATPMP.natpmpresp_t();
int r;
Win32.TimeValue timeout = new Win32.TimeValue();
Win32.FileDescriptorSet fds = new Win32.FileDescriptorSet(1);
if (!remove)
{
portMapping.SetMappingStatus(PortMappingStatus.Trying);
}
PortMappingTransportProtocol protocol = portMapping.TransportProtocol;
for (int i = 1; i <= 2; i++)
{
PortMappingTransportProtocol currentProtocol;
if (i == 1)
{
currentProtocol = PortMappingTransportProtocol.UDP;
}
else
{
currentProtocol = PortMappingTransportProtocol.TCP;
}
if (protocol == currentProtocol || protocol == PortMappingTransportProtocol.Both)
{
r = NATPMP.sendnewportmappingrequest(ref natpmp,
(i == 1) ? NATPMP.PROTOCOL_UDP : NATPMP.PROTOCOL_TCP,
portMapping.LocalPort, portMapping.DesiredExternalPort, (uint)(remove ? 0 : 3600));
do
{
fds.Count = 1;
fds.Array[0] = (IntPtr)natpmp.s;
NATPMP.getnatpmprequesttimeout(ref natpmp, ref timeout);
Win32.select(0, ref fds, IntPtr.Zero, IntPtr.Zero, ref timeout);
r = NATPMP.readnatpmpresponseorretry(ref natpmp, ref response);
}while(r == NATPMP.ERR_TRYAGAIN);
if (r < 0)
{
portMapping.SetMappingStatus(PortMappingStatus.Unmapped);
return(false);
}
}
}
if (remove)
{
portMapping.SetMappingStatus(PortMappingStatus.Unmapped);
}
else
{
updateInterval = Math.Min(updateInterval, response.pnu_newportmapping.lifetime / 2);
if (updateInterval < 60)
{
DebugLog.WriteLine("NAT-PMP: ApplyPortMapping: Caution - new port mapping had a lifetime < 120 ({0})",
response.pnu_newportmapping.lifetime);
updateInterval = 60;
}
portMapping.SetExternalPort(response.pnu_newportmapping.mappedpublicport);
portMapping.SetMappingStatus(PortMappingStatus.Mapped);
}
return(true);
}
