Source code of Windows XP (NT5)
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#include "stdafx.h"
#pragma hdrstop
#include <winsock.h>
// upnp functions
HRESULT TranslateError (HRESULT hr)
{
if ((hr >= UPNP_E_ACTION_SPECIFIC_BASE) &&
(hr <= UPNP_E_ACTION_SPECIFIC_MAX)) {
int iError = FAULT_ACTION_SPECIFIC_BASE - 0x300 + (int)(0xFFFF & hr);
switch (iError) {
case 401: // FAULT_INVALID_ACTION
hr = HRESULT_FROM_WIN32 (ERROR_INVALID_FUNCTION);
break;
case 402: // FAULT_INVALID_ARG
hr = HRESULT_FROM_WIN32 (ERROR_INVALID_PARAMETER);
break;
case 403: // FAULT_INVALID_SEQUENCE_NUMBER
hr = HRESULT_FROM_WIN32 (ERROR_INVALID_SIGNAL_NUMBER);
break;
case 404: // FAULT_INVALID_VARIABLE
hr = HRESULT_FROM_WIN32 (ERROR_PROC_NOT_FOUND);
break;
case 501: // FAULT_DEVICE_INTERNAL_ERROR
hr = HRESULT_FROM_WIN32 (ERROR_GEN_FAILURE);
break;
default:
_ASSERT (0 && "unknown error");
// fall thru
case 701: // ValueAlreadySpecified: The value specified in the action is already available in the list and is consequently ignored.
case 703: // InactiveConnectionStateRequired: Current value of ConnectionStatus should be either Disconnected or Unconfigured to permit this action.
case 704: // ConnectionSetupFailed: There was a failure in setting up the IP or PPP connection with the service provider. See LastConnectoinError for more details.
case 705: // ConnectionSetupInProgress: The connection is already in the process of being setup
case 706: // ConnectionNotConfigured: Current ConnectionStatus is Unconfigured
case 707: // DisconnectInProgress: The connection is in the process of being torn down.
case 708: // InvalidLayer2Address: Corresponding Link Config service has an invalid VPI/VPC or phone number.
case 709: // InternetAccessDisabled: The EnabledForInternet flag is set to 0.
case 710: // InvalidConnectionType: This command is valid only when ConnectionType is IP-Routed
case 711: // ConnectionAlreadyTerminated: An attempt was made to terminate a connection that is no longer active.
case 715: // WildCardNoPermitedInSrcIP: The source IP address cannot be wild-carded
case 716: // WildCardNotPermittedInExtPort: The external port cannot be wild-carded
case 719: // ActionDisallowedWhenAutoConfigEnabled: The specified action is not permitted when auto configuration is enabled on the modem.
case 720: // InvalidDeviceUUID: the UUID of a device specified in the action arguments is invalid.
case 721: // InvalidServiceID: The Service ID of a service specified in the action arguments in invalid.
case 723: // InvalidConnServiceSelection: The selected connection service instance cannot be set as a default connection.
hr = HRESULT_FROM_WIN32 (ERROR_SERVICE_SPECIFIC_ERROR);
break;
case 702: // ValueSpecifiedIsInvalid: The specified value is not present in the list
hr = HRESULT_FROM_WIN32 (ERROR_FILE_NOT_FOUND);
break;
case 712: // The specified array index holds a NULL value
hr = E_UNEXPECTED; // ?? shouldn't the array compact?
break;
case 713: // The specified array index is out of bounds
case 714: // NoSuchEntryInArray: The specified value does not exist in the array
hr = HRESULT_FROM_WIN32 (ERROR_FILE_NOT_FOUND);
break;
case 718: // ConflictInMappingEntry: The service mapping entry specified conflicts with a mapping assigned previously to another client
hr = HRESULT_FROM_WIN32 (ERROR_BUSY);
break;
case 724: // SamePortValuesRequired: Internal and External port valuse must be the same.
case 725: // OnlyPermanentLeasesSupported: The NAT implementation only supports permanent lease times on port mappings
hr = HRESULT_FROM_WIN32 (ERROR_INVALID_PARAMETER);
break;
}
}
return hr;
}
HRESULT InvokeAction (IUPnPService * pUPS, CComBSTR & bstrActionName, VARIANT pvIn, VARIANT * pvOut, VARIANT * pvRet)
{
if (!bstrActionName.m_str)
return E_OUTOFMEMORY;
HRESULT hr = pUPS->InvokeAction (bstrActionName, pvIn, pvOut, pvRet);
if (FAILED(hr))
hr = TranslateError (hr);
return hr;
}
HRESULT QueryStateVariable (IUPnPService * pUPS, CComBSTR & bstrVariableName, VARIANT * pvOut)
{
if (!bstrVariableName.m_str)
return E_OUTOFMEMORY;
HRESULT hr = pUPS->QueryStateVariable (bstrVariableName, pvOut);
if (FAILED(hr))
hr = TranslateError (hr);
return hr;
}
HRESULT GetNumberOfEntries (IUPnPService * pUS, ULONG * pul)
{
if (!pul)
return E_POINTER;
*pul = 0;
CComVariant cv;
HRESULT hr = QueryStateVariable (pUS, CComBSTR(L"PortMappingNumberOfEntries"), &cv);
if (SUCCEEDED (hr)) {
if ((V_VT (&cv) != VT_I4) &&
(V_VT (&cv) != VT_UI4)) {
_ASSERT (0 && "bad type from QueryStateVariable (PortMappingNumberOfEntries, ...)?");
hr = E_UNEXPECTED;
} else
*pul = V_UI4 (&cv); // it's a union, so this works in either case
}
return hr;
}
HRESULT GetExternalIPAddress (IUPnPService * pUPS, BSTR * pbstr)
{
SAFEARRAYBOUND rgsaBound[1];
rgsaBound[0].lLbound = 0;
rgsaBound[0].cElements = 0;
SAFEARRAY * psa = SafeArrayCreate (VT_VARIANT, 1, rgsaBound);
if (!psa)
return E_OUTOFMEMORY;
CComVariant cvIn;
V_VT (&cvIn) = VT_VARIANT | VT_ARRAY;
V_ARRAY (&cvIn) = psa; // psa will be freed in dtor
CComVariant cvOut, cvRet;
HRESULT hr = InvokeAction (pUPS, CComBSTR(L"GetExternalIPAddress"), cvIn, &cvOut, &cvRet);
if (SUCCEEDED (hr)) {
if (V_VT (&cvOut) != (VT_VARIANT | VT_ARRAY)) {
_ASSERT (0 && "InvokeAction didn't fill out a [out] parameter (properly)!");
hr = E_UNEXPECTED;
} else {
SAFEARRAY * pSA = V_ARRAY (&cvOut);
_ASSERT (pSA);
long lLower = 0, lUpper = -1;
SafeArrayGetLBound (pSA, 1, &lLower);
SafeArrayGetUBound (pSA, 1, &lUpper);
if (lUpper - lLower != 1 - 1)
hr = E_UNEXPECTED;
else {
hr = GetBSTRFromSafeArray (pSA, pbstr, 0);
}
}
}
return hr;
}
// some utils
HRESULT GetOnlyVariantElementFromVariantSafeArray (VARIANT * pvSA, VARIANT * pv)
{
HRESULT hr = S_OK;
if (V_VT (pvSA) != (VT_VARIANT | VT_ARRAY)) {
_ASSERT (0 && "InvokeAction didn't fill out a [out,retval] parameter (properly)!");
hr = E_UNEXPECTED;
} else {
SAFEARRAY * pSA = V_ARRAY (pvSA);
_ASSERT (pSA);
// this should contain a VARIANT that's really a BSTR
long lLower = 0, lUpper = -1;
SafeArrayGetLBound (pSA, 1, &lLower);
SafeArrayGetUBound (pSA, 1, &lUpper);
if (lUpper != lLower)
hr = E_UNEXPECTED;
else
hr = SafeArrayGetElement (pSA, &lLower, (void*)pv);
}
return hr;
}
HRESULT AddToSafeArray (SAFEARRAY * psa, VARIANT * pv, long lIndex)
{
if (V_VT (pv) == VT_ERROR)
return V_ERROR (pv);
return SafeArrayPutElement (psa, &lIndex, (void*)pv);
}
HRESULT GetBSTRFromSafeArray (SAFEARRAY * psa, BSTR * pbstr, long lIndex)
{
*pbstr = NULL;
CComVariant cv;
HRESULT hr = SafeArrayGetElement (psa, &lIndex, (void*)&cv);
if (SUCCEEDED(hr)) {
if (V_VT (&cv) != VT_BSTR)
hr = E_UNEXPECTED;
else {
*pbstr = SysAllocString (V_BSTR (&cv));
if (!*pbstr)
hr = E_OUTOFMEMORY;
}
}
return hr;
}
HRESULT GetLongFromSafeArray (SAFEARRAY * psa, long * pl, long lIndex)
{
*pl = 0;
CComVariant cv;
HRESULT hr = SafeArrayGetElement (psa, &lIndex, (void*)&cv);
if (SUCCEEDED(hr)) {
if ((V_VT (&cv) == VT_I4) || (V_VT (&cv) == VT_UI4))
*pl = V_I4 (&cv); // it's a union, so this works in either case
else
if ((V_VT (&cv) == VT_I2) || (V_VT (&cv) == VT_UI2))
*pl = V_UI2 (&cv); // it's a union, so this works in either case
else
hr = E_UNEXPECTED;
}
return hr;
}
HRESULT GetBoolFromSafeArray (SAFEARRAY * psa, VARIANT_BOOL * pvb, long lIndex)
{
*pvb = 0;
CComVariant cv;
HRESULT hr = SafeArrayGetElement (psa, &lIndex, (void*)&cv);
if (SUCCEEDED(hr)) {
if (V_VT (&cv) != VT_BOOL)
hr = E_UNEXPECTED;
else
*pvb = V_BOOL (&cv);
}
return hr;
}
#ifdef KEEP
HRESULT FindDeviceByType (IUPnPDevices * pUPDs, BSTR bstrType, IUPnPDevice ** ppUPD)
{ // finds a device in a collection of devices, by type.
CComPtr<IUnknown> spUnk = NULL;
HRESULT hr = pUPDs->get__NewEnum (&spUnk);
if (spUnk) {
CComPtr<IEnumVARIANT> spEV = NULL;
hr = spUnk->QueryInterface (__uuidof(IEnumVARIANT), (void**)&spEV);
spUnk = NULL; // don't need this anymore
if (spEV) {
CComVariant cv;
while (S_OK == (hr = spEV->Next (1, &cv, NULL))) {
if (V_VT (&cv) == VT_DISPATCH) {
CComPtr<IUPnPDevice> spUPD = NULL;
hr = V_DISPATCH (&cv)->QueryInterface (
__uuidof(IUPnPDevice),
(void**)&spUPD);
if (spUPD) {
// see if this device is of the right type
CComBSTR cb;
spUPD->get_Type (&cb);
if (cb == bstrType) {
// found it!
return spUPD->QueryInterface (
__uuidof(IUPnPDevice),
(void**)ppUPD);
}
}
}
cv.Clear();
}
}
}
// if we got here, we either didn't find it, or there was an error
if (SUCCEEDED(hr))
hr = HRESULT_FROM_WIN32 (ERROR_FILE_NOT_FOUND);
return hr;
}
HRESULT GetOnlyChildDevice (IUPnPDevice * pParent, IUPnPDevice ** ppChild)
{
*ppChild = NULL;
CComPtr<IUPnPDevices> spUPDs = NULL;
HRESULT hr = pParent->get_Children (&spUPDs);
if (spUPDs) {
long lCount = 0;
spUPDs->get_Count (&lCount);
if (lCount != 1)
return E_INVALIDARG;
CComPtr<IUnknown> spUnk = NULL;
hr = spUPDs->get__NewEnum (&spUnk);
if (spUnk) {
CComPtr<IEnumVARIANT> spEV = NULL;
hr = spUnk->QueryInterface (__uuidof(IEnumVARIANT), (void**)&spEV);
if (spEV) {
spEV->Reset(); // probably not necessary
CComVariant cv;
hr = spEV->Next (1, &cv, NULL);
if (hr == S_OK) {
if (V_VT (&cv) != VT_DISPATCH)
hr = E_FAIL;
else {
hr = V_DISPATCH (&cv)->QueryInterface (
__uuidof(IUPnPDevice),
(void**)ppChild);
}
}
}
}
}
return hr;
}
#endif
NETCON_MEDIATYPE GetMediaType (INetConnection * pNC)
{
NETCON_PROPERTIES* pProps = NULL;
pNC->GetProperties (&pProps);
if (pProps) {
NETCON_MEDIATYPE MediaType = pProps->MediaType;
NcFreeNetconProperties (pProps);
return MediaType;
}
return NCM_NONE;
}
HRESULT AddPortMapping (IUPnPService * pUPS,
BSTR bstrRemoteHost,
long lExternalPort,
BSTR bstrProtocol,
long lInternalPort,
BSTR bstrInternalClient,
VARIANT_BOOL vbEnabled,
BSTR bstrDescription,
long lLeaseDurationDesired)
{
// special handling for loopback and localhost
CComBSTR cbInternalClient;
USES_CONVERSION;
#define LOOPBACK_ADDR 0x0100007f
if ((LOOPBACK_ADDR == inet_addr (OLE2A (bstrInternalClient))) ||
(!_wcsicmp (bstrInternalClient, L"localhost"))) {
// use computer name, using A version
CHAR szComputerName[MAX_COMPUTERNAME_LENGTH+1];
DWORD dwSize = MAX_COMPUTERNAME_LENGTH+1;
if (!GetComputerNameA (szComputerName, &dwSize))
return HRESULT_FROM_WIN32(GetLastError());
else {
cbInternalClient = A2OLE(szComputerName);
}
} else {
cbInternalClient = bstrInternalClient;
}
if (!cbInternalClient.m_str)
return E_OUTOFMEMORY;
SAFEARRAYBOUND rgsaBound[1];
rgsaBound[0].lLbound = 0;
rgsaBound[0].cElements = 8;
SAFEARRAY * psa = SafeArrayCreate (VT_VARIANT, 1, rgsaBound);
if (!psa)
return E_OUTOFMEMORY;
CComVariant cvIn;
V_VT (&cvIn) = VT_VARIANT | VT_ARRAY;
V_ARRAY (&cvIn) = psa; // psa will be freed in dtor
HRESULT
hr = AddToSafeArray (psa, &CComVariant(bstrRemoteHost), 0);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(lExternalPort), 1);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(bstrProtocol), 2);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(lInternalPort), 3);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(cbInternalClient), 4);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant((bool)!!vbEnabled), 5);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(bstrDescription), 6);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(lLeaseDurationDesired), 7);
if (SUCCEEDED(hr)) {
CComVariant cvOut, cvRet;
hr = InvokeAction (pUPS, CComBSTR(L"AddPortMapping"), cvIn, &cvOut, &cvRet);
}
return hr;
}
HRESULT DeletePortMapping (IUPnPService * pUPS,
BSTR bstrRemoteHost,
long lExternalPort,
BSTR bstrProtocol)
{
if (!bstrRemoteHost)
return E_INVALIDARG;
if ((lExternalPort < 0) || (lExternalPort > 65535))
return E_INVALIDARG;
if (!bstrProtocol)
return E_INVALIDARG;
if (wcscmp (bstrProtocol, L"TCP") && wcscmp (bstrProtocol, L"UDP"))
return E_INVALIDARG;
SAFEARRAYBOUND rgsaBound[1];
rgsaBound[0].lLbound = 0;
rgsaBound[0].cElements = 3;
SAFEARRAY * psa = SafeArrayCreate (VT_VARIANT, 1, rgsaBound);
if (!psa)
return E_OUTOFMEMORY;
CComVariant cvIn;
V_VT (&cvIn) = VT_VARIANT | VT_ARRAY;
V_ARRAY (&cvIn) = psa; // psa will be freed in dtor
HRESULT
hr = AddToSafeArray (psa, &CComVariant(bstrRemoteHost), 0);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(lExternalPort), 1);
if (SUCCEEDED(hr))
hr = AddToSafeArray (psa, &CComVariant(bstrProtocol), 2);
if (SUCCEEDED(hr)) {
CComVariant cvOut, cvRet;
hr = InvokeAction (pUPS, CComBSTR(L"DeletePortMapping"), cvIn, &cvOut, &cvRet);
// no [out] or [out,retval] paramters
}
return hr;
}