openclonk/src/network/C4Network2UPnPLinux.cpp

153 lines
3.6 KiB
C++

/*
* OpenClonk, http://www.openclonk.org
*
* Copyright (c) 2012-2016, The OpenClonk Team and contributors
*
* Distributed under the terms of the ISC license; see accompanying file
* "COPYING" for details.
*
* "Clonk" is a registered trademark of Matthes Bender, used with permission.
* See accompanying file "TRADEMARK" for details.
*
* To redistribute this file separately, substitute the full license texts
* for the above references.
*/
/* Linux implementation of a UPnP port mapper (using miniupnpc) */
#include "C4Include.h"
#include "game/C4Application.h"
#include "C4Version.h"
#include <miniupnpc.h>
#include <upnpcommands.h>
#include <upnperrors.h>
#include "network/C4Network2UPnP.h"
static const char *description = "OpenClonk";
class C4Network2UPnPP
{
public:
C4Network2UPnPP();
virtual ~C4Network2UPnPP();
void AddMapping(C4Network2IOProtocol protocol, uint16_t intport, uint16_t extport);
void ClearMappings();
private:
struct PortMapping {
uint16_t external_port;
uint16_t internal_port;
std::string protocol;
};
void AddPortMapping(const PortMapping& mapping);
void RemovePortMapping(const PortMapping& mapping);
std::vector<PortMapping> added_mappings;
bool initialized = false;
char lanaddr[64];
UPNPDev *devlist = nullptr;
UPNPUrls upnp_urls;
IGDdatas igd_data;
};
C4Network2UPnPP::C4Network2UPnPP()
{
int error, status;
if ((devlist = upnpDiscover(2000, NULL, NULL, UPNP_LOCAL_PORT_ANY, 0, 2, &error)))
{
if ((status = UPNP_GetValidIGD(devlist, &upnp_urls, &igd_data, lanaddr, sizeof(lanaddr))))
{
LogF("UPnP: Found IGD %s (status %d)", upnp_urls.controlURL, status);
initialized = true;
}
else
{
Log("UPnP: No IGD found.");
}
}
else
{
Log("UPnP: No UPnP device found on the network.");
}
}
C4Network2UPnPP::~C4Network2UPnPP()
{
ClearMappings();
FreeUPNPUrls(&upnp_urls);
freeUPNPDevlist(devlist);
}
void C4Network2UPnPP::AddMapping(C4Network2IOProtocol protocol, uint16_t intport, uint16_t extport)
{
PortMapping mapping;
mapping.external_port = extport;
mapping.internal_port = intport;
mapping.protocol = (protocol == P_TCP ? "TCP" : "UDP");
added_mappings.push_back(mapping);
AddPortMapping(mapping);
}
void C4Network2UPnPP::ClearMappings()
{
for (auto mapping : added_mappings)
RemovePortMapping(mapping);
added_mappings.clear();
}
void C4Network2UPnPP::AddPortMapping(const PortMapping& mapping)
{
if (!initialized) return; // Catches the case that UPnP initialization failed
auto eport = std::to_string(mapping.external_port);
auto iport = std::to_string(mapping.internal_port);
int r = UPNP_AddPortMapping(upnp_urls.controlURL, igd_data.first.servicetype,
eport.c_str(), iport.c_str(), lanaddr, description,
mapping.protocol.c_str(), 0, 0);
if (r != UPNPCOMMAND_SUCCESS)
LogF("UPnP: AddPortMapping failed with code %d (%s)", r, strupnperror(r));
}
void C4Network2UPnPP::RemovePortMapping(const PortMapping& mapping)
{
if(!initialized) return; // Catches the case that UPnP initialization failed
auto eport = std::to_string(mapping.external_port);
int r = UPNP_DeletePortMapping(upnp_urls.controlURL, igd_data.first.servicetype,
eport.c_str(), mapping.protocol.c_str(), 0);
if (r != UPNPCOMMAND_SUCCESS)
LogF("UPnP: DeletePortMapping failed with code %d (%s)", r, strupnperror(r));
}
C4Network2UPnP::C4Network2UPnP():
p(new C4Network2UPnPP)
{
}
C4Network2UPnP::~C4Network2UPnP()
{
delete p;
}
void C4Network2UPnP::AddMapping(C4Network2IOProtocol protocol, uint16_t intport, uint16_t extport)
{
p->AddMapping(protocol, intport, extport);
}
void C4Network2UPnP::ClearMappings()
{
p->ClearMappings();
}