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Libminiupnpc library support (v1.5 and v1.6), dynamic runtime linking.

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This commit is contained in:
Mikal Villa 2015-01-03 21:38:48 +01:00
parent f552f24e6e
commit 7acdc0a606
4 changed files with 281 additions and 86 deletions
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19
Daemon.cpp
View File

@ -18,6 +18,11 @@
#include "HTTPServer.h"
#include "ClientContext.h"
#ifdef USE_UPNP
#include "UPnP.h"
#endif
namespace i2p
{
namespace util
@ -89,11 +94,11 @@ namespace i2p
if (isDaemon)
{
std::string logfile_path = IsService () ? "/var/log" : i2p::util::filesystem::GetDataDir().string();
#ifndef _WIN32
#ifndef _WIN32
logfile_path.append("/i2pd.log");
#else
#else
logfile_path.append("\\i2pd.log");
#endif
#endif
StartLog (logfile_path);
}
else
@ -111,7 +116,10 @@ namespace i2p
LogPrint("Tunnels started");
i2p::client::context.Start ();
LogPrint("Client started");
#ifdef USE_UPNP
i2p::UPnP::upnpc.Start();
LogPrint("UPnP module loaded");
#endif
return true;
}
@ -128,6 +136,9 @@ namespace i2p
LogPrint("NetDB stoped");
d.httpServer->Stop();
LogPrint("HTTP Server stoped");
#ifdef USE_UPNP
i2p::UPnP::upnpc.Stop();
#endif
StopLog ();
delete d.httpServer; d.httpServer = nullptr;

6
Makefile.linux
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@ -36,6 +36,12 @@ else
LDLIBS = -lcryptopp -lboost_system -lboost_date_time -lboost_filesystem -lboost_regex -lboost_program_options -lpthread
endif
# UPNP Support (miniupnpc 1.5 or 1.6)
ifeq ($(USE_UPNP),1)
LDFLAGS += -ldl
CXXFLAGS += -DUSE_UPNP
endif
IS_64 := $(shell $(CXX) -dumpmachine 2>&1 | $(GREP) -c "64")
ifeq ($(USE_AESNI),yes)
ifeq ($(IS_64),1)

270
UPnP.cpp
View File

@ -1,68 +1,226 @@
#ifdef USE_UPNP
#include <string>
#include <boost/lexical_cast.hpp>
#include <thread>
#include <boost/thread/thread.hpp>
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include "Log.h"
#include "RouterContext.h"
#include "UPnP.h"
#include "NetDb.h"
#include "util.h"
#include <miniupnpc/miniupnpc.h>
#include <miniupnpc/upnpcommands.h>
#include <dlfcn.h>
#ifndef UPNPDISCOVER_SUCCESS
/* miniupnpc 1.5 */
typedef UPNPDev* (*upnp_upnpDiscoverFunc) (int, const char *, const char *, int);
typedef int (*upnp_UPNP_AddPortMappingFunc) (const char *, const char *, const char *, const char *,
const char *, const char *, const char *, const char *);
#else
/* miniupnpc 1.6 */
typedef UPNPDev* (*upnp_upnpDiscoverFunc) (int, const char *, const char *, int, int, int *);
typedef int (*upnp_UPNP_AddPortMappingFunc) (const char *, const char *, const char *, const char *,
const char *, const char *, const char *, const char *, const char *);
#endif
typedef int (*upnp_UPNP_GetValidIGDFunc) (struct UPNPDev *, struct UPNPUrls *, struct IGDdatas *, char *, int);
typedef int (*upnp_UPNP_GetExternalIPAddressFunc) (const char *, const char *, char *);
typedef int (*upnp_UPNP_DeletePortMappingFunc) (const char *, const char *, const char *, const char *, const char *);
typedef void (*upnp_freeUPNPDevlistFunc) (struct UPNPDev *);
typedef void (*upnp_FreeUPNPUrlsFunc) (struct UPNPUrls *);
namespace i2p
{
UPnP::UPnP (): m_Timer (m_Service),
m_Endpoint (boost::asio::ip::udp::v4 (), UPNP_REPLY_PORT),
m_MulticastEndpoint (boost::asio::ip::address::from_string (UPNP_GROUP), UPNP_PORT),
m_Socket (m_Service, m_Endpoint.protocol ())
{
m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (65535));
m_Socket.set_option (boost::asio::socket_base::send_buffer_size (65535));
m_Socket.set_option(boost::asio::ip::udp::socket::reuse_address(true));
}
UPnP::~UPnP ()
{
}
namespace UPnP
{
UPnP upnpc;
void UPnP::Run ()
{
DiscoverRouter ();
m_Service.run ();
}
void UPnP::DiscoverRouter ()
{
m_Timer.expires_from_now (boost::posix_time::seconds(5)); // 5 seconds
m_Timer.async_wait (boost::bind (&UPnP::HandleTimer, this, boost::asio::placeholders::error));
UPnP::UPnP () : m_Thread (nullptr) , m_IsModuleLoaded (false)
{
}
std::string address = UPNP_GROUP;
address += ":" + boost::lexical_cast<std::string>(UPNP_PORT);
std::string request = "M-SEARCH * HTTP/1.1\r\n"
"HOST: " + address + "\r\n"
"ST:" + UPNP_ROUTER + "\r\n"
"MAN:\"ssdp:discover\"\r\n"
"MX:3\r\n"
"\r\n\r\n";
m_Socket.send_to (boost::asio::buffer (request.c_str (), request.length ()), m_MulticastEndpoint);
Receive ();
}
void UPnP::Stop ()
{
if (m_Thread)
{
m_Thread->join ();
delete m_Thread;
m_Thread = nullptr;
}
}
void UPnP::Receive ()
{
m_Socket.async_receive_from (boost::asio::buffer (m_ReceiveBuffer, UPNP_MAX_PACKET_LEN), m_SenderEndpoint,
boost::bind (&UPnP::HandleReceivedFrom, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
}
void UPnP::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred)
{
LogPrint ("UPnP: ", bytes_transferred, " received from ", m_SenderEndpoint.address ());
std::string str (m_ReceiveBuffer, bytes_transferred);
LogPrint (str);
m_Timer.cancel ();
}
void UPnP::Start()
{
m_Thread = new std::thread (std::bind (&UPnP::Run, this));
}
UPnP::~UPnP ()
{
}
void UPnP::Run ()
{
#ifdef MAC_OSX
m_Module = dlopen ("libminiupnpc.dylib", RTLD_LAZY);
#elif WIN32
m_Module = dlopen ("libminiupnpc.dll", RTLD_LAZY);
#else
m_Module = dlopen ("libminiupnpc.so", RTLD_LAZY);
#endif
if (!m_Module)
{
LogPrint ("no UPnP module available (", dlerror (), ")");
return;
}
else
{
m_IsModuleLoaded = true;
}
for (auto& address : context.GetRouterInfo ().GetAddresses ())
{
if (!address.host.is_v6 ())
{
m_Port = std::to_string (util::config::GetArg ("-port", address.port));
Discover ();
if (address.transportStyle == data::RouterInfo::eTransportSSU )
{
TryPortMapping (I2P_UPNP_UDP);
}
else if (address.transportStyle == data::RouterInfo::eTransportNTCP )
{
TryPortMapping (I2P_UPNP_TCP);
}
}
}
}
void UPnP::Discover ()
{
const char *error;
upnp_upnpDiscoverFunc upnpDiscoverFunc = (upnp_upnpDiscoverFunc) dlsym (m_Module, "upnpDiscover");
// reinterpret_cast<upnp_upnpDiscoverFunc> (dlsym(...));
if ( (error = dlerror ()))
{
LogPrint ("Error loading UPNP library. This often happens if there is version mismatch!");
return;
}
#ifndef UPNPDISCOVER_SUCCESS
/* miniupnpc 1.5 */
m_Devlist = upnpDiscoverFunc (2000, m_MulticastIf, m_Minissdpdpath, 0);
#else
/* miniupnpc 1.6 */
int nerror = 0;
m_Devlist = upnpDiscoverFunc (2000, m_MulticastIf, m_Minissdpdpath, 0, 0, &nerror);
#endif
int r;
upnp_UPNP_GetValidIGDFunc UPNP_GetValidIGDFunc = (upnp_UPNP_GetValidIGDFunc) dlsym (m_Module, "UPNP_GetValidIGD");
r = (*UPNP_GetValidIGDFunc) (m_Devlist, &m_upnpUrls, &m_upnpData, m_NetworkAddr, sizeof (m_NetworkAddr));
if (r == 1)
{
upnp_UPNP_GetExternalIPAddressFunc UPNP_GetExternalIPAddressFunc = (upnp_UPNP_GetExternalIPAddressFunc) dlsym (m_Module, "UPNP_GetExternalIPAddress");
r = UPNP_GetExternalIPAddressFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_externalIPAddress);
if(r != UPNPCOMMAND_SUCCESS)
{
LogPrint ("UPnP: UPNP_GetExternalIPAddress () returned ", r);
return;
}
else
{
if (m_externalIPAddress[0])
{
LogPrint ("UPnP: ExternalIPAddress = ", m_externalIPAddress);
i2p::context.UpdateAddress (boost::asio::ip::address::from_string (m_externalIPAddress));
return;
}
else
{
LogPrint ("UPnP: GetExternalIPAddress failed.");
return;
}
}
}
}
void UPnP::TryPortMapping (int type)
{
std::string strType;
switch (type)
{
case I2P_UPNP_TCP:
strType = "TCP";
break;
case I2P_UPNP_UDP:
default:
strType = "UDP";
}
int r;
std::string strDesc = "I2Pd";
try {
for (;;) {
upnp_UPNP_AddPortMappingFunc UPNP_AddPortMappingFunc = (upnp_UPNP_AddPortMappingFunc) dlsym(m_Module, "UPNP_AddPortMapping");
#ifndef UPNPDISCOVER_SUCCESS
/* miniupnpc 1.5 */
r = UPNP_AddPortMappingFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_Port.c_str (), m_Port.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), 0);
#else
/* miniupnpc 1.6 */
r = UPNP_AddPortMappingFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_Port.c_str (), m_Port.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), 0, "0");
#endif
if (r!=UPNPCOMMAND_SUCCESS)
{
LogPrint ("AddPortMapping (", m_Port.c_str () ,", ", m_Port.c_str () ,", ", m_NetworkAddr, ") failed with code ", r);
return;
}
else
{
LogPrint ("UPnP Port Mapping successful. (", m_NetworkAddr ,":", m_Port.c_str(), " type ", strType.c_str () ," -> ", m_externalIPAddress ,":", m_Port.c_str() ,")");
return;
}
sleep(20*60);
}
}
catch (boost::thread_interrupted)
{
CloseMapping(type);
Close();
throw;
}
}
void UPnP::CloseMapping (int type)
{
std::string strType;
switch (type)
{
case I2P_UPNP_TCP:
strType = "TCP";
break;
case I2P_UPNP_UDP:
default:
strType = "UDP";
}
int r = 0;
upnp_UPNP_DeletePortMappingFunc UPNP_DeletePortMappingFunc = (upnp_UPNP_DeletePortMappingFunc) dlsym (m_Module, "UPNP_DeletePortMapping");
r = UPNP_DeletePortMappingFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_Port.c_str (), strType.c_str (), 0);
LogPrint ("UPNP_DeletePortMapping() returned : ", r, "\n");
}
void UPnP::Close ()
{
upnp_freeUPNPDevlistFunc freeUPNPDevlistFunc = (upnp_freeUPNPDevlistFunc) dlsym (m_Module, "freeUPNPDevlist");
freeUPNPDevlistFunc (m_Devlist);
m_Devlist = 0;
upnp_FreeUPNPUrlsFunc FreeUPNPUrlsFunc = (upnp_FreeUPNPUrlsFunc) dlsym (m_Module, "FreeUPNPUrlsFunc");
FreeUPNPUrlsFunc (&m_upnpUrls);
dlclose (m_Module);
}
void UPnP::HandleTimer (const boost::system::error_code& ecode)
{
if (ecode != boost::asio::error::operation_aborted)
{
LogPrint ("UPnP: timeout expired");
m_Service.stop ();
}
}
}
}
#endif

72
UPnP.h
View File

@ -1,41 +1,61 @@
#ifndef UPNP_H__
#define UPNP_H__
#ifndef __UPNP_H__
#define __UPNP_H__
#ifdef USE_UPNP
#include <string>
#include <thread>
#include <miniupnpc/miniwget.h>
#include <miniupnpc/miniupnpc.h>
#include <miniupnpc/upnpcommands.h>
#include <miniupnpc/upnperrors.h>
#include <boost/asio.hpp>
#include "util.h"
#define I2P_UPNP_TCP 1
#define I2P_UPNP_UDP 2
namespace i2p
{
const int UPNP_MAX_PACKET_LEN = 1500;
const char UPNP_GROUP[] = "239.255.255.250";
const int UPNP_PORT = 1900;
const int UPNP_REPLY_PORT = 1901;
const char UPNP_ROUTER[] = "urn:schemas-upnp-org:device:InternetGatewayDevice:1";
namespace UPnP
{
class UPnP
{
public:
public:
UPnP ();
~UPnP ();
UPnP ();
~UPnP ();
void Close ();
void Run ();
void Start ();
void Stop ();
private:
void Discover ();
void TryPortMapping (int type);
void CloseMapping (int type);
private:
void Run ();
void DiscoverRouter ();
void Receive ();
void HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred);
void HandleTimer (const boost::system::error_code& ecode);
private:
std::thread * m_Thread;
struct UPNPUrls m_upnpUrls;
struct IGDdatas m_upnpData;
boost::asio::io_service m_Service;
boost::asio::deadline_timer m_Timer;
boost::asio::ip::udp::endpoint m_Endpoint, m_MulticastEndpoint, m_SenderEndpoint;
boost::asio::ip::udp::socket m_Socket;
char m_ReceiveBuffer[UPNP_MAX_PACKET_LEN];
};
// For miniupnpc
char * m_MulticastIf = 0;
char * m_Minissdpdpath = 0;
struct UPNPDev * m_Devlist = 0;
char m_NetworkAddr[64];
char m_externalIPAddress[40];
bool m_IsModuleLoaded;
std::string m_Port = std::to_string (util::config::GetArg ("-port", 17070));
void *m_Module;
};
extern UPnP upnpc;
}
}
#endif
#endif