271 lines
8.3 KiB
C++
271 lines
8.3 KiB
C++
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// UPnPNAT.cpp : Implementation of CUPnPNAT
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#include "stdafx.h"
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#pragma hdrstop
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#include "UPnPNAT.h"
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#include "NATEM.h"
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#include "dprtmapc.h"
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#include "sprtmapc.h"
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DEFINE_GUID(CLSID_CInternetGatewayFinder,
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0x4d3f9715, 0x73da, 0x4506, 0x89, 0x33, 0x1e, 0xe, 0x17, 0x18, 0xba, 0x3b);
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void __cdecl nat_trans_func (unsigned int uSECode, EXCEPTION_POINTERS* pExp)
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{
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throw NAT_SEH_Exception (uSECode);
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}
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void EnableNATExceptionHandling()
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{
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_set_se_translator (nat_trans_func);
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}
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void DisableNATExceptionHandling()
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{
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_set_se_translator (NULL);
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}
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HRESULT GetServiceFromINetConnection (IUnknown * pUnk, IUPnPService ** ppUPS)
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{
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CComPtr<INetConnection> spNC = NULL;
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HRESULT hr = pUnk->QueryInterface (__uuidof(INetConnection), (void**)&spNC);
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if (!spNC)
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return E_INVALIDARG;
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SAHOST_SERVICES sas;
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// make sure we have either
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// NCM_SHAREDACCESSHOST_LAN or NCM_SHAREDACCESSHOST_RAS
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switch (GetMediaType (spNC)) {
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case NCM_SHAREDACCESSHOST_LAN:
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sas = SAHOST_SERVICE_WANIPCONNECTION;
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break;
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case NCM_SHAREDACCESSHOST_RAS:
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sas = SAHOST_SERVICE_WANPPPCONNECTION;
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break;
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default:
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return E_INVALIDARG;
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}
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CComPtr<INetSharedAccessConnection> spNSAC = NULL;
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hr = pUnk->QueryInterface (__uuidof(INetSharedAccessConnection), (void**)&spNSAC);
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if (spNSAC)
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hr = spNSAC->GetService (sas, ppUPS);
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return hr;
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}
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HRESULT GetServiceFromFinder (IInternetGatewayFinder * pIGF, IUPnPService ** ppUPS)
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{
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CComPtr<IInternetGateway> spIG = NULL;
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HRESULT hr = pIGF->GetInternetGateway (NULL, &spIG); // NULL gets default.
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if (spIG) {
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NETCON_MEDIATYPE MediaType = NCM_NONE;
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hr = spIG->GetMediaType (&MediaType);
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if (SUCCEEDED(hr)) {
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switch (MediaType) {
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case NCM_SHAREDACCESSHOST_LAN:
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hr = spIG->GetService (SAHOST_SERVICE_WANIPCONNECTION, ppUPS);
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break;
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case NCM_SHAREDACCESSHOST_RAS:
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hr = spIG->GetService (SAHOST_SERVICE_WANPPPCONNECTION, ppUPS);
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break;
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default:
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return E_UNEXPECTED;
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}
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}
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}
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return hr;
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}
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HRESULT GetService (IUPnPService ** ppUPS)
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{
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if (!ppUPS)
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return E_POINTER;
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*ppUPS = NULL;
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// either enum all netconnections, or
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// for downlevel, use Ken's object
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CComPtr<INetConnectionManager> spNCM = NULL;
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HRESULT hr = ::CoCreateInstance (CLSID_ConnectionManager,
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NULL,
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CLSCTX_ALL,
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__uuidof(INetConnectionManager),
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(void**)&spNCM);
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if (spNCM) {
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CComPtr<IUnknown> spUnk = NULL;
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CComPtr<IEnumNetConnection> spENC = NULL;
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hr = spNCM->EnumConnections (NCME_DEFAULT, &spENC);
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if (spENC) {
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ULONG ul = 0;
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CComPtr<INetConnection> spNC = NULL;
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while (S_OK == spENC->Next (1, &spNC, &ul)) {
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NETCON_PROPERTIES * pProps = NULL;
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spNC->GetProperties (&pProps);
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if (pProps) {
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NETCON_MEDIATYPE MediaType = pProps->MediaType;
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NcFreeNetconProperties (pProps);
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if ((MediaType == NCM_SHAREDACCESSHOST_LAN) ||
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(MediaType == NCM_SHAREDACCESSHOST_RAS) ){
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// found it
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spNC->QueryInterface (__uuidof(IUnknown),
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(void**)&spUnk);
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break;
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}
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}
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spNC = NULL;
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}
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}
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if (spUnk)
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hr = GetServiceFromINetConnection (spUnk, ppUPS);
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} else {
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// downlevel
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CComPtr<IInternetGatewayFinder> spIGF = NULL;
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hr = ::CoCreateInstance (CLSID_CInternetGatewayFinder,
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NULL,
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CLSCTX_ALL,
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__uuidof(IInternetGatewayFinder),
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(void**)&spIGF);
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if (spIGF)
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hr = GetServiceFromFinder (spIGF, ppUPS);
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}
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return hr;
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}
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template<class C, class I> class UN {
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public:
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HRESULT Create (I ** ppI)
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{
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if (ppI)
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*ppI = NULL;
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if (!ppI)
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return E_POINTER;
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CComPtr<IUPnPService> spUPS = NULL;
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HRESULT hr = GetService (&spUPS);
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if (spUPS) {
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// create class so that I can initialize it
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CComObject<C> * pC = NULL;
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hr = CComObject<C>::CreateInstance (&pC);
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if (pC) {
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pC->AddRef();
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// init
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hr = pC->Initialize (spUPS);
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if (SUCCEEDED(hr))
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hr = pC->QueryInterface (__uuidof(I), (void**)ppI);
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pC->Release();
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}
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}
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return hr;
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}
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};
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/////////////////////////////////////////////////////////////////////////////
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// CUPnPNAT
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STDMETHODIMP CUPnPNAT::get_NATEventManager(INATEventManager ** ppNEM)
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{
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NAT_API_ENTER
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UN<CNATEventManager, INATEventManager> un;
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return un.Create (ppNEM);
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NAT_API_LEAVE
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}
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STDMETHODIMP CUPnPNAT::get_DynamicPortMappingCollection (IDynamicPortMappingCollection ** ppDPMC)
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{
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NAT_API_ENTER
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// remove the section below when turning dynamic port mappings back on
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if (!ppDPMC)
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return E_POINTER;
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*ppDPMC = NULL;
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return E_NOTIMPL;
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// remove the section above when turning dynamic port mappings back on
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UN<CDynamicPortMappingCollection, IDynamicPortMappingCollection> un;
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return un.Create (ppDPMC);
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NAT_API_LEAVE
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}
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STDMETHODIMP CUPnPNAT::get_StaticPortMappingCollection (IStaticPortMappingCollection ** ppSPMC)
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{
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NAT_API_ENTER
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UN<CStaticPortMappingCollection, IStaticPortMappingCollection> un;
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return un.Create (ppSPMC);
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NAT_API_LEAVE
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}
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// private method(s)
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HRESULT GetOSInfoService (IUPnPService ** ppUPS)
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{
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if (!ppUPS)
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return E_POINTER;
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*ppUPS = NULL;
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// either enum all netconnections, or
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// for downlevel, use Ken's object
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CComPtr<INetConnectionManager> spNCM = NULL;
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HRESULT hr = ::CoCreateInstance (CLSID_ConnectionManager,
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NULL,
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CLSCTX_ALL,
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__uuidof(INetConnectionManager),
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(void**)&spNCM);
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if (spNCM) {
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CComPtr<IEnumNetConnection> spENC = NULL;
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hr = spNCM->EnumConnections (NCME_DEFAULT, &spENC);
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if (spENC) {
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ULONG ul = 0;
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CComPtr<INetConnection> spNC = NULL;
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while (S_OK == spENC->Next (1, &spNC, &ul)) {
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NETCON_PROPERTIES * pProps = NULL;
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spNC->GetProperties (&pProps);
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if (pProps) {
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NETCON_MEDIATYPE MediaType = pProps->MediaType;
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NcFreeNetconProperties (pProps);
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if ((MediaType == NCM_SHAREDACCESSHOST_LAN) ||
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(MediaType == NCM_SHAREDACCESSHOST_RAS) ){
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// found it
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break;
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}
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}
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spNC = NULL;
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}
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if (spNC) {
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CComPtr<INetSharedAccessConnection> spNSAC = NULL;
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hr = spNC->QueryInterface (__uuidof(INetSharedAccessConnection), (void**)&spNSAC);
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if (spNSAC)
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hr = spNSAC->GetService (SAHOST_SERVICE_OSINFO, ppUPS);
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} else
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hr = HRESULT_FROM_WIN32 (ERROR_FILE_NOT_FOUND);
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}
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} else {
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// downlevel
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CComPtr<IInternetGatewayFinder> spIGF = NULL;
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hr = ::CoCreateInstance (CLSID_CInternetGatewayFinder,
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NULL,
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CLSCTX_ALL,
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__uuidof(IInternetGatewayFinder),
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(void**)&spIGF);
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if (spIGF) {
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CComPtr<IInternetGateway> spIG = NULL;
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hr = spIGF->GetInternetGateway (NULL, &spIG); // NULL gets default.
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if (spIG)
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hr = spIG->GetService (SAHOST_SERVICE_OSINFO, ppUPS);
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}
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}
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return hr;
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}
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BOOL IsICSHost ()
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{
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CComPtr<IUPnPService> spOSI = NULL;
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GetOSInfoService (&spOSI);
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if (spOSI)
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return TRUE;
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return FALSE;
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}
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