private bool RemovePortMapping(ExistingUPnPPortMapping portMapping)
{
int result = MiniUPnP.UPNPCOMMAND_SUCCESS;
bool udpResult = true;
bool tcpResult = true;
String extPortStr = portMapping.ExternalPort.ToString();
if ((portMapping.TransportProtocol & PortMappingTransportProtocol.UDP) > 0)
{
try
{
result = MiniUPnP.UPNP_DeletePortMapping(urls.controlURL, igddata.ServiceType, extPortStr, "UDP");
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that it works perfect, except for the stupid exception.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_DeletePortMapping");
}
DebugLog.WriteLine("UPnP: RemovePortMapping: UDP: result = {0}", result);
udpResult = (result == MiniUPnP.UPNPCOMMAND_SUCCESS);
}
if ((portMapping.TransportProtocol & PortMappingTransportProtocol.TCP) > 0)
{
try
{
result = MiniUPnP.UPNP_DeletePortMapping(urls.controlURL, igddata.ServiceType, extPortStr, "TCP");
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that it works perfect, except for the stupid exception.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_DeletePortMapping");
}
DebugLog.WriteLine("UPnP: RemovePortMapping: TCP: result = {0}", result);
tcpResult = (result == MiniUPnP.UPNPCOMMAND_SUCCESS);
}
return(udpResult && tcpResult);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#endregion
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#region Update Port Mappings Thread
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void UpdatePortMappingsThread()
{
Monitor.Enter(multiThreadLock);
OnDidBeginWorking();
// Remove existing mappings scheduled for removal.
// These are mappings that weren't created by us, but have been explicity set for removal.
List <ExistingUPnPPortMapping> existingMappingsToRemove;
existingMappingsToRemove = PortMapper.SharedInstance.ExistingUPnPPortMappingsToRemove;
lock (existingMappingsToRemove)
{
while ((existingMappingsToRemove.Count > 0) && (updatePortMappingsThreadFlags == ThreadFlags.None))
{
ExistingUPnPPortMapping existingMappingToRemove = existingMappingsToRemove[0];
RemovePortMapping(existingMappingToRemove);
existingMappingsToRemove.RemoveAt(0);
}
}
// We need to safeguard mappings that others might have made.
// UPnP is quite generous in giving us what we want,
// even if other mappings are there, especially from the same local machine.
DoUpdateExistingUPnPPortMappings();
// Remove mappings scheduled for removal
List <PortMapping> mappingsToRemove = PortMapper.SharedInstance.PortMappingsToRemove;
lock (mappingsToRemove)
{
while ((mappingsToRemove.Count > 0) && (updatePortMappingsThreadFlags == ThreadFlags.None))
{
PortMapping mappingToRemove = mappingsToRemove[0];
if (mappingToRemove.MappingStatus == PortMappingStatus.Mapped)
{
RemovePortMapping(mappingToRemove);
}
mappingsToRemove.RemoveAt(0);
}
}
// If the port mapper is running:
// -Add new mappings
// If the port mapper is stopped:
// -Remove any existing mappings
List <PortMapping> mappings = PortMapper.SharedInstance.PortMappings;
lock (mappings)
{
for (int i = 0; i < mappings.Count && updatePortMappingsThreadFlags == ThreadFlags.None; i++)
{
PortMapping currentMapping = mappings[i];
bool isRunning = PortMapper.SharedInstance.IsRunning;
if (currentMapping.MappingStatus == PortMappingStatus.Unmapped && isRunning)
{
AddPortMapping(currentMapping);
}
else if (currentMapping.MappingStatus == PortMappingStatus.Mapped && !isRunning)
{
RemovePortMapping(currentMapping);
}
}
}
Monitor.Exit(multiThreadLock);
if (PortMapper.SharedInstance.IsRunning)
{
if ((updatePortMappingsThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
UpdatePortMappings();
}
else if ((updatePortMappingsThreadFlags & ThreadFlags.ShouldQuit) > 0)
{
Refresh();
}
}
OnDidEndWorking();
}
private void DoUpdateExistingUPnPPortMappings()
{
List <ExistingUPnPPortMapping> existingMappings = new List <ExistingUPnPPortMapping>();
Dictionary <UInt16, ExistingUPnPPortMapping> existingMappingsUdpDict =
new Dictionary <UInt16, ExistingUPnPPortMapping>();
Dictionary <UInt16, ExistingUPnPPortMapping> existingMappingsTcpDict =
new Dictionary <UInt16, ExistingUPnPPortMapping>();
int r = 0;
int i = 0;
byte[] index = new byte[6];
byte[] intClient = new byte[16];
byte[] intPort = new byte[6];
byte[] extPort = new byte[6];
byte[] protocol = new byte[4];
byte[] desc = new byte[80];
byte[] enabled = new byte[6];
byte[] rHost = new byte[64];
byte[] duration = new byte[16];
do
{
// Convert "int i" to a null-terminated char array
String iStr = i.ToString();
int maxCount = Math.Min(iStr.Length, 5);
System.Text.Encoding.ASCII.GetBytes(iStr, 0, maxCount, index, 0);
// Reset all the other null-terminated char arrays
intClient[0] = 0;
intPort[0] = 0;
extPort[0] = 0;
protocol[0] = 0; // Warning - not in Cocoa version
desc[0] = 0;
enabled[0] = 0;
rHost[0] = 0;
duration[0] = 0;
r = MiniUPnP.UPNPCOMMAND_UNKNOWN_ERROR;
try
{
r = MiniUPnP.UPNP_GetGenericPortMappingEntry(urls.controlURL, igddata.ServiceType,
index,
extPort, intClient, intPort,
protocol, desc, enabled,
rHost, duration);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_GetGenericPortMappingEntry");
r = MiniUPnP.UPNPCOMMAND_SUCCESS;
}
if (r == MiniUPnP.UPNPCOMMAND_SUCCESS)
{
IPAddress iAddr;
IPAddress.TryParse(MiniUPnP.NullTerminatedArrayToString(intClient), out iAddr);
UInt16 iPort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(intPort), out iPort);
UInt16 ePort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(extPort), out ePort);
PortMappingTransportProtocol transportProtocol = 0;
String protocolStr = MiniUPnP.NullTerminatedArrayToString(protocol);
if (protocolStr.Equals("UDP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.UDP;
}
if (protocolStr.Equals("TCP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.TCP;
}
String description = MiniUPnP.NullTerminatedArrayToString(desc);
ExistingUPnPPortMapping existingPM;
existingPM = new ExistingUPnPPortMapping(iAddr, iPort, ePort, transportProtocol, description);
existingMappings.Add(existingPM);
if ((transportProtocol & PortMappingTransportProtocol.UDP) > 0)
{
existingMappingsUdpDict[ePort] = existingPM;
}
if ((transportProtocol & PortMappingTransportProtocol.TCP) > 0)
{
existingMappingsTcpDict[ePort] = existingPM;
}
DebugLog.WriteLine("Existing UPnP: {0}: {1} {2}->{3}:{4} ({5})",
i, protocolStr, ePort, iAddr, iPort, description);
}
i++;
} while ((r == MiniUPnP.UPNPCOMMAND_SUCCESS) && (updatePortMappingsThreadFlags == ThreadFlags.None));
// Update stored list of existing mappings
existingUPnPPortMappings = existingMappings;
existingUPnPPortMappingsUdpDict = existingMappingsUdpDict;
existingUPnPPortMappingsTcpDict = existingMappingsTcpDict;
}
/// <summary>
/// Asynchronously removes the given port mapping.
///
/// This method will also automatically refresh the UPnP mapping table,
/// and call the DidReceiveUPNPMappingTable delegate.
/// </summary>
/// <param name="pm">
/// The port mapping to remove.
/// </param>
public void RemovePortMapping(ExistingUPnPPortMapping pm)
{
if(pm == null) return;
// All public API methods are wrapped in a single thread lock.
// This frees users to invoke the public API from multiple threads, but provides us a bit of sanity.
lock (singleThreadLock)
{
if (upnpStatus == MappingStatus.Works)
{
lock (existingUPnPPortMappingsToRemove)
{
existingUPnPPortMappingsToRemove.Add(pm);
}
if (isRunning)
{
requestedUPnPMappingTable = true;
UpdatePortMappings();
}
}
}
}
private bool RemovePortMapping(ExistingUPnPPortMapping portMapping)
{
int result = MiniUPnP.UPNPCOMMAND_SUCCESS;
bool udpResult = true;
bool tcpResult = true;
String extPortStr = portMapping.ExternalPort.ToString();
if ((portMapping.TransportProtocol & PortMappingTransportProtocol.UDP) > 0)
{
try
{
result = MiniUPnP.UPNP_DeletePortMapping(urls.controlURL, igddata.ServiceType, extPortStr, "UDP");
}
catch(AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that it works perfect, except for the stupid exception.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_DeletePortMapping");
}
DebugLog.WriteLine("UPnP: RemovePortMapping: UDP: result = {0}", result);
udpResult = (result == MiniUPnP.UPNPCOMMAND_SUCCESS);
}
if ((portMapping.TransportProtocol & PortMappingTransportProtocol.TCP) > 0)
{
try
{
result = MiniUPnP.UPNP_DeletePortMapping(urls.controlURL, igddata.ServiceType, extPortStr, "TCP");
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that it works perfect, except for the stupid exception.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_DeletePortMapping");
}
DebugLog.WriteLine("UPnP: RemovePortMapping: TCP: result = {0}", result);
tcpResult = (result == MiniUPnP.UPNPCOMMAND_SUCCESS);
}
return (udpResult && tcpResult);
}
private void DoUpdateExistingUPnPPortMappings()
{
List<ExistingUPnPPortMapping> existingMappings = new List<ExistingUPnPPortMapping>();
Dictionary<UInt16, ExistingUPnPPortMapping> existingMappingsUdpDict =
new Dictionary<UInt16, ExistingUPnPPortMapping>();
Dictionary<UInt16, ExistingUPnPPortMapping> existingMappingsTcpDict =
new Dictionary<UInt16, ExistingUPnPPortMapping>();
int r = 0;
int i = 0;
byte[] index = new byte[6];
byte[] intClient = new byte[16];
byte[] intPort = new byte[6];
byte[] extPort = new byte[6];
byte[] protocol = new byte[4];
byte[] desc = new byte[80];
byte[] enabled = new byte[6];
byte[] rHost = new byte[64];
byte[] duration = new byte[16];
do
{
// Convert "int i" to a null-terminated char array
String iStr = i.ToString();
int maxCount = Math.Min(iStr.Length, 5);
System.Text.Encoding.ASCII.GetBytes(iStr, 0, maxCount, index, 0);
// Reset all the other null-terminated char arrays
intClient[0] = 0;
intPort[0] = 0;
extPort[0] = 0;
protocol[0] = 0; // Warning - not in Cocoa version
desc[0] = 0;
enabled[0] = 0;
rHost[0] = 0;
duration[0] = 0;
r = MiniUPnP.UPNPCOMMAND_UNKNOWN_ERROR;
try
{
r = MiniUPnP.UPNP_GetGenericPortMappingEntry(urls.controlURL, igddata.ServiceType,
index,
extPort, intClient, intPort,
protocol, desc, enabled,
rHost, duration);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_GetGenericPortMappingEntry");
r = MiniUPnP.UPNPCOMMAND_SUCCESS;
}
if (r == MiniUPnP.UPNPCOMMAND_SUCCESS)
{
IPAddress iAddr;
IPAddress.TryParse(MiniUPnP.NullTerminatedArrayToString(intClient), out iAddr);
UInt16 iPort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(intPort), out iPort);
UInt16 ePort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(extPort), out ePort);
PortMappingTransportProtocol transportProtocol = 0;
String protocolStr = MiniUPnP.NullTerminatedArrayToString(protocol);
if (protocolStr.Equals("UDP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.UDP;
}
if (protocolStr.Equals("TCP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.TCP;
}
String description = MiniUPnP.NullTerminatedArrayToString(desc);
ExistingUPnPPortMapping existingPM;
existingPM = new ExistingUPnPPortMapping(iAddr, iPort, ePort, transportProtocol, description);
existingMappings.Add(existingPM);
if ((transportProtocol & PortMappingTransportProtocol.UDP) > 0)
{
existingMappingsUdpDict[ePort] = existingPM;
}
if ((transportProtocol & PortMappingTransportProtocol.TCP) > 0)
{
existingMappingsTcpDict[ePort] = existingPM;
}
DebugLog.WriteLine("Existing UPnP: {0}: {1} {2}->{3}:{4} ({5})",
i, protocolStr, ePort, iAddr, iPort, description);
}
i++;
} while ((r == MiniUPnP.UPNPCOMMAND_SUCCESS) && (updatePortMappingsThreadFlags == ThreadFlags.None));
// Update stored list of existing mappings
existingUPnPPortMappings = existingMappings;
existingUPnPPortMappingsUdpDict = existingMappingsUdpDict;
existingUPnPPortMappingsTcpDict = existingMappingsTcpDict;
}
