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windows-nt/Source/XPSP1/NT/net/config/shell/netsetup/ncsysprp.cpp

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//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 2000.
//
// File: N C S Y S P R P . C P P
//
// Contents: Functions that related to SysPrep.exe requiremnts.
//
// Notes: 1.
// 1.a sysprep calls NetSetupPrepareSysPrep
// 1.b NetSetup saves adapter specific settings into $ncsp$.inf file.
// NetSetup does this by calling INetCfgComponent::SaveAdapterParameters
// implemented by notify object.
//
// 2.
// 2.a Mini-Setup calls NetSetupRequestWizardPages passing the
// "SETUPOPER_MINISETUP" flag right after PnP device installation.
// 2.b NetSetup's InstallUpgradeWorkThrd thread checks the "SETUPOPER_MINISETUP" flag,
// if set, it calls FNetSetupApplySysPrep which reads Answer-File "$ncsp$.inf".
// It then calls notify object's INetCfgComponent::RestoreAdapterParameters
// to restore adapter specific parameter settings from "$ncsp$.inf" Answer-File.
//
// 3. Only ONE network adapter card is supported on this version.
//
// Author: FrankLi 22-April-2000
//
//----------------------------------------------------------------------------
#include "pch.h"
#pragma hdrstop
#include "kkcwinf.h"
#include "ncstring.h"
#include "netcfgp.h"
#include "nsbase.h"
#include "kkutils.h"
#include "ncnetcfg.h"
#include "lancmn.h"
#include "ncreg.h"
#include "ncsysprp.h"
#include "resource.h"
// constants from ncnetcfg\netinfid.cpp
extern WCHAR c_szInfId_MS_TCPIP[] = L"ms_tcpip";
extern WCHAR c_szInfId_MS_MSClient[] = L"ms_msclient";
extern WCHAR c_szInfId_MS_NWClient[] = L"ms_nwclient";
// constants from ncbase\afilestr.cpp
extern WCHAR c_szRegKeyAnswerFileMap[] = L"SYSTEM\\Setup\\AnswerFileMap";
// constants for adapter specific sections
const WCHAR c_szParams_MS_TCPIP_Adapter01[] = L"params.ms_tcpip_Adapter01";
//const WCHAR c_szParams_MS_MSClient_Adapter01[] = L"params.ms_msclient_Adapter01";
//const WCHAR c_szParams_MS_NWClient_Adapter01[] = L"params.ms_nwclient_Adapter01";
// The Answer-File name to save registry settings
static const WCHAR c_szNetConfigSysPrepAnswerFile[] = L"\\$ncsp$.inf";
// struct to map component Id to its corresponding adapter specific parameter
// Answer-File section
struct
{
PCWSTR pwszId;
PCWSTR pwszIdAdapterParamsSection;
} g_IdMap[] = {{c_szInfId_MS_TCPIP, c_szParams_MS_TCPIP_Adapter01},
// no adapter specific parameters for MSClient and NWClient
//{c_szInfId_MS_MSClient, c_szParams_MS_MSClient_Adapter01},
//{c_szInfId_MS_NWClient, c_szParams_MS_NWClient_Adapter01}
};
// forward declaration
HRESULT HrSaveNetworkComponentsForSysPrep(INetCfg* pNetCfg);
HRESULT HrRestoreNetworkComponentsForSysPrep(INetCfg* pNetCfg);
HRESULT HrGetFirstAdapterInstanceGuid(INetCfg * pnc, BOOL fDuringSetup, GUID * pGuidAdapter);
BOOL FSectionHasAtLeastOneKey(IN CWInfFile* pwifAnswerFile, IN PCWSTR pszSection);
//-------------------------------------------------------------------------
// internal helper APIs used by CNetCfgSysPrep implementation
// to save settings from notify object:
// Purpose: save REG_DWORD to our internal CWinfFile object
inline HRESULT HrSetupSetFirstDword(IN HWIF hwif,
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN DWORD dwValue)
{
Assert (hwif && pwszSection && pwszKey);
CWInfFile* pwifAnswerFile = reinterpret_cast<PCWInfFile>(hwif);
PCWInfSection pwifSection = pwifAnswerFile->FindSection(pwszSection);
if (pwifSection)
{
pwifAnswerFile->GotoEndOfSection(pwifSection);
pwifAnswerFile->AddKey(pwszKey, dwValue);
return S_OK;
}
else
return S_FALSE;
}
// Purpose: save REG_SZ to our internal CWinfFile object
inline HRESULT HrSetupSetFirstString(IN HWIF hwif,
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN PCWSTR pwszValue)
{
Assert (hwif && pwszSection && pwszKey && pwszValue);
CWInfFile* pwifAnswerFile = reinterpret_cast<PCWInfFile>(hwif);
PCWInfSection pwifSection = pwifAnswerFile->FindSection(pwszSection);
if (pwifSection)
{
pwifAnswerFile->GotoEndOfSection(pwifSection);
pwifAnswerFile->AddKey(pwszKey, pwszValue);
return S_OK;
}
else
return S_FALSE;
}
// Purpose: save BOOL data to our internal CWinfFile object
inline HRESULT HrSetupSetFirstStringAsBool(IN HWIF hwif,
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN BOOL fValue)
{
Assert (hwif && pwszSection && pwszKey);
CWInfFile* pwifAnswerFile = reinterpret_cast<PCWInfFile>(hwif);
PCWInfSection pwifSection = pwifAnswerFile->FindSection(pwszSection);
if (pwifSection)
{
pwifAnswerFile->GotoEndOfSection(pwifSection);
pwifAnswerFile->AddBoolKey(pwszKey, fValue);
return S_OK;
}
else
return S_FALSE;
}
// Purpose: save MULTI_SZ to our internal CWinfFile object
HRESULT HrSetupSetFirstMultiSzField(IN HWIF hwif,
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN PCWSTR pmszValue)
{
HRESULT hr = S_OK;
Assert (hwif && pwszSection && pwszKey && pmszValue);
TStringList slValues;
MultiSzToColString(pmszValue, &slValues);
if (slValues.empty())
{
// empty pmszValue
return HrSetupSetFirstString(hwif, pwszSection, pwszKey, pmszValue);
}
else
{
CWInfFile* pwifAnswerFile = reinterpret_cast<PCWInfFile>(hwif);
PCWInfSection pwifSection = pwifAnswerFile->FindSection(pwszSection);
if (pwifSection)
{
pwifAnswerFile->GotoEndOfSection(pwifSection);
pwifAnswerFile->AddKey(pwszKey, slValues);
}
else
hr = S_FALSE;
}
EraseAndDeleteAll(&slValues);
return hr;
}
//--------------------------------------------------------------------------
// Implementation of INetCfgSysPrep component
inline HRESULT CNetCfgSysPrep::HrSetupSetFirstDword(
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN DWORD dwValue)
{
HRESULT hr = S_OK;
EnterCriticalSection(&m_csWrite);
if (m_hwif)
{
hr = ::HrSetupSetFirstDword(
m_hwif,
pwszSection,
pwszKey,
dwValue);
}
else
{
hr = E_FAIL;
}
LeaveCriticalSection(&m_csWrite);
return hr;
}
inline HRESULT CNetCfgSysPrep::HrSetupSetFirstString(
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN PCWSTR pwszValue)
{
HRESULT hr = S_OK;
EnterCriticalSection(&m_csWrite);
if (m_hwif)
{
hr = ::HrSetupSetFirstString(
m_hwif,
pwszSection,
pwszKey,
pwszValue);
}
else
{
hr = E_FAIL;
}
LeaveCriticalSection(&m_csWrite);
return hr;
}
inline HRESULT CNetCfgSysPrep::HrSetupSetFirstStringAsBool(
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN BOOL fValue)
{
HRESULT hr = S_OK;
EnterCriticalSection(&m_csWrite);
if (m_hwif)
{
hr = ::HrSetupSetFirstStringAsBool(
m_hwif,
pwszSection,
pwszKey,
fValue);
}
else
{
hr = E_FAIL;
}
LeaveCriticalSection(&m_csWrite);
return hr;
}
inline HRESULT CNetCfgSysPrep::HrSetupSetFirstMultiSzField(
IN PCWSTR pwszSection,
IN PCWSTR pwszKey,
IN PCWSTR pmszValue)
{
HRESULT hr = S_OK;
EnterCriticalSection(&m_csWrite);
if (m_hwif)
{
hr = ::HrSetupSetFirstMultiSzField(
m_hwif,
pwszSection,
pwszKey,
pmszValue);
}
else
{
hr = E_FAIL;
}
LeaveCriticalSection(&m_csWrite);
return hr;
}
//
// Function: FNetSetupPrepareSysPrep
//
// Purpose: wrapper for HrSaveNetworkComponentsForSysPrep
//
// Parameters:
//
// Returns: TRUE on success, otherwise, FALSE
//
//
BOOL FNetSetupPrepareSysPrep()
{
INetCfg* pNetCfg = NULL;
BOOL fInitCom = TRUE;
HRESULT hr;
DefineFunctionName("FNetSetupPrepareSysPrep");
TraceFunctionEntry(ttidNetSetup);
hr = HrCreateAndInitializeINetCfg(&fInitCom, &pNetCfg,
FALSE, // no write lock
0, // don't wait for it
L"Save Configuration for SysPrep",
NULL);
if (SUCCEEDED(hr))
{
// Retain our success in initializing COM only if we asked to
// initialize COM in the first place.
if (! fInitCom)
{
TraceTag(ttidNetSetup, "%s: Failed to init COM", __FUNCNAME__);
return FALSE;
}
// Save network component per adapter registry settings
hr = HrSaveNetworkComponentsForSysPrep(pNetCfg);
if (hr == S_OK)
{
// delete the HKLM\SYSTEM\Setup\AnswerFileMap registry key if it exits
HrRegDeleteKeyTree(HKEY_LOCAL_MACHINE, c_szRegKeyAnswerFileMap);
}
HrUninitializeAndReleaseINetCfg (fInitCom, pNetCfg, FALSE);
}
TraceError("FNetSetupPrepareSysPrep", hr);
return (hr == S_OK)? TRUE : FALSE;
}
//
// Function: HrSaveNetworkComponentsForSysPrep
//
// Purpose: Ask notify object to save adapter specific settings
//
// Parameters: pNetCfg [IN] - An INetCfg interface
//
// Returns: HRESULT, S_OK on success
//
//
// Note: only 1 network adapter card is supported. If there are more than 1,
// we'll pick the first working one.
HRESULT HrSaveNetworkComponentsForSysPrep(INetCfg* pNetCfg)
{
HRESULT hr = S_OK;
GUID guidAdapter; // network adapter's Instance GUID
BOOL fApplyWrite = FALSE; // flag to save internal registry settings to Answer-File
BOOL fRet = TRUE;
DefineFunctionName("HrSaveNetworkComponentsForSysPrep");
hr = HrGetFirstAdapterInstanceGuid(pNetCfg, FALSE, &guidAdapter); // FALSE ==> not in setup
if (hr != S_OK)
{
TraceTag(ttidNetSetup, "%s: HrGetFirstAdapterInstanceGuid failed 0x%08x", __FUNCNAME__, hr);
return S_FALSE;
}
CWInfFile* pwifAnswerFile = new CWInfFile();
// initialize answer file class
if ((pwifAnswerFile == NULL) || (pwifAnswerFile->Init() == FALSE))
{
AssertSz(FALSE,"HrSaveNetworkComponentsForSysPrep - Failed to initialize CWInfFile");
if (pwifAnswerFile)
delete pwifAnswerFile;
return(E_OUTOFMEMORY);
}
// access INetCfgSysPrep ATL component using C++ instead of CoCreateInstance
CComObject<CNetCfgSysPrep>* pncsp = new CComObject<CNetCfgSysPrep>;
// initialize CNetCfgSysPrep class
if ((pncsp == NULL) || (pncsp->HrInit((HWIF) pwifAnswerFile) != S_OK))
{
AssertSz(FALSE,"HrSaveNetworkComponentsForSysPrep - Failed to initialize CWInfFile");
delete pwifAnswerFile;
if (pncsp)
delete pncsp;
return(E_OUTOFMEMORY);
}
pncsp->AddRef(); // keep a reference to our component
for (UINT nIdx = 0; nIdx < celems(g_IdMap); nIdx++)
{
INetCfgComponent* pINetCfgComponent;
PCWSTR pwszInfId;
PCWSTR pwszAdapterParamsSections;
pwszInfId = g_IdMap[nIdx].pwszId;
pwszAdapterParamsSections = g_IdMap[nIdx].pwszIdAdapterParamsSection;
hr = pNetCfg->FindComponent(pwszInfId, &pINetCfgComponent);
if (hr == S_OK)
{
Assert (pINetCfgComponent);
// Component has already installed, we'll call notify object's
// INetCfgComponentSysPrep::SaveAdapterParameters
// Need to query for the private component interface which
// gives us access to the notify object.
//
INetCfgComponentPrivate* pComponentPrivate;
hr = pINetCfgComponent->QueryInterface(
IID_INetCfgComponentPrivate,
reinterpret_cast<void**>(&pComponentPrivate));
if (hr == S_OK)
{
INetCfgComponentSysPrep* pINetCfgComponentSysPrep;
// Query the notify object for its INetCfgComponentSysPrep interface.
// If it doesn't support it, that's okay, we can continue.
//
hr = pComponentPrivate->QueryNotifyObject(
IID_INetCfgComponentSysPrep,
(void**) &pINetCfgComponentSysPrep);
if (S_OK == hr)
{
// add a section first
pwifAnswerFile->AddSection(pwszAdapterParamsSections);
// trigger Notify object to save registry settings
hr = pINetCfgComponentSysPrep->SaveAdapterParameters(
reinterpret_cast<INetCfgSysPrep*>(pncsp), pwszAdapterParamsSections, &guidAdapter);
if (hr == S_OK)
fApplyWrite = TRUE;
ReleaseObj(pINetCfgComponentSysPrep);
}
else if (hr == E_NOINTERFACE)
{
TraceTag(ttidNetSetup, "%s: %S component doesn't support IID_INetCfgComponentSysPrep", __FUNCNAME__, pwszInfId);
}
else
fRet = FALSE; // unexpected error
ReleaseObj(pComponentPrivate);
}
else
{
TraceTag(ttidNetSetup, "%s: can't find IID_INetCfgComponentPrivate for component %S", __FUNCNAME__, pwszInfId);
fRet = FALSE;
}
ReleaseObj (pINetCfgComponent);
}
else
{
// it is okay that this component has not been installed
TraceTag(ttidNetSetup, "%s: Can't find %S component", __FUNCNAME__, pwszInfId);
}
} // end for
pncsp->SetHWif(NULL); // no more writes for those components holding our INetCfgSysPrep interface
ReleaseObj(pncsp); // done with the usage of INetCfgSysPrep component
if (fApplyWrite)
{
WCHAR wszSystemDir[MAX_PATH];
// get the path to $ncsp$.inf (NetConfig SysPrep Answer-File)
if (GetSystemDirectory(wszSystemDir, MAX_PATH) != 0)
{
tstring strAnswerFile;
strAnswerFile = wszSystemDir;
strAnswerFile += c_szNetConfigSysPrepAnswerFile;
// save the parameters filled by notify object to Answer-File
if (! pwifAnswerFile->SaveAsEx(strAnswerFile.c_str()))
fRet = FALSE;
}
else
{
TraceTag(ttidNetSetup, "%s: GetSystemDirectory failed 0x%8x", __FUNCNAME__, GetLastError());
fRet = FALSE;
}
}
delete pwifAnswerFile;
return fRet? S_OK : S_FALSE;
}
//
// Function: FNetSetupApplySysPrep
//
// Purpose: wrapper for HrRestoreNetworkComponentsForSysPrep
//
// Parameters:
//
// Returns: TRUE on success, otherwise, FALSE
//
// Notes: This causes NetSetup to load the content of
// %systemroot%\system32\$ncsp$.inf into a CWInfFile object.
// Then, NetSetup will instruct notify object to restore their
// per adatper settings from the corresponding sections of the
// $ncsp$.inf file.
BOOL FNetSetupApplySysPrep()
{
INetCfg* pNetCfg = NULL;
BOOL fInitCom = TRUE;
HRESULT hr;
DefineFunctionName("FNetSetupApplySysPrep");
TraceFunctionEntry(ttidNetSetup);
hr = HrCreateAndInitializeINetCfg(&fInitCom, &pNetCfg,
FALSE, // no write lock
0, // don't wait for it
L"Restore Configuration for SysPrep",
NULL);
if (SUCCEEDED(hr))
{
// Retain our success in initializing COM only if we asked to
// initialize COM in the first place.
if (! fInitCom)
{
TraceTag(ttidNetSetup, "%s: Failed to init COM", __FUNCNAME__);
return FALSE;
}
// Restore network component per adapter registry settings
hr = HrRestoreNetworkComponentsForSysPrep(pNetCfg);
HrUninitializeAndReleaseINetCfg (fInitCom, pNetCfg, FALSE);
}
TraceError("FNetSetupApplySysPrep", hr);
return (hr == S_OK)? TRUE : FALSE;
}
//
// Function: HrRestoreNetworkComponentsForSysPrep
//
// Purpose: read $ncsp$.inf file. If this file has
// adapter specific sections, trigger the corresponding
// notify object to restore the settings to registry.
//
// Parameters: pNetCfg [IN] - An INetCfg interface
//
// Returns: HRESULT, S_OK on success
//
//
HRESULT HrRestoreNetworkComponentsForSysPrep(INetCfg* pNetCfg)
{
HRESULT hr = S_OK;
GUID guidAdapter; // network adapter's Instance GUID
WCHAR wszSystemDir[MAX_PATH]; // system32 directory
tstring strAnswerFile; // Answer-File which was saved by SysPrep
BOOL fRet = TRUE; // notify object's status in restore settings
DefineFunctionName("HrRestoreNetworkComponentsForSysPrep");
// get the path to $ncsp$.inf (NetConfig SysPrep Answer-File)
if (GetSystemDirectory(wszSystemDir, MAX_PATH) != 0)
{
strAnswerFile = wszSystemDir;
strAnswerFile += c_szNetConfigSysPrepAnswerFile;
}
else
{
TraceTag(ttidNetSetup, "%s: GetSystemDirectory failed 0x%8x", __FUNCNAME__, GetLastError());
return S_FALSE;
}
hr = HrGetFirstAdapterInstanceGuid(pNetCfg, TRUE, &guidAdapter); // TRUE ==> during setup
if (hr != S_OK)
{
TraceTag(ttidNetSetup, "%s: HrGetFirstAdapterInstanceGuid failed 0x%08x", __FUNCNAME__, hr);
return S_FALSE;
}
CWInfFile* pwifAnswerFile = new CWInfFile();
// initialize answer file class
if ((pwifAnswerFile == NULL) || (pwifAnswerFile->Init() == FALSE))
{
AssertSz(FALSE,"HrRestoreNetworkComponentsForSysPrep - Failed to initialize CWInfFile");
if (pwifAnswerFile)
delete pwifAnswerFile;
return(E_OUTOFMEMORY);
}
// read $ncsp$.inf Answer-File into pwifAnswerFile object
if (pwifAnswerFile->Open(strAnswerFile.c_str()) == FALSE)
{
TraceTag(ttidNetSetup, "%s: pwifAnswerFile->Open failed 0x%08x", __FUNCNAME__);
delete pwifAnswerFile;
return S_FALSE;
}
for (UINT nIdx = 0; nIdx < celems(g_IdMap); nIdx++)
{
INetCfgComponent* pINetCfgComponent;
PCWSTR pwszInfId; // component ID
PCWSTR pwszAdapterParamsSections; // adapter specific parameter section
pwszInfId = g_IdMap[nIdx].pwszId;
pwszAdapterParamsSections = g_IdMap[nIdx].pwszIdAdapterParamsSection;
// trigger Notify object to restore registry settings if
// the section has at least one line of parameter
pwifAnswerFile->FindSection(pwszAdapterParamsSections);
if (FSectionHasAtLeastOneKey(pwifAnswerFile, pwszAdapterParamsSections))
{
hr = pNetCfg->FindComponent(pwszInfId, &pINetCfgComponent);
if (hr == S_OK)
{
Assert (pINetCfgComponent);
// Component has already installed, just call notify object's
// INetCfgComponentSysPrep::RestoreAdapterParameters
// Need to query for the private component interface which
// gives us access to the notify object.
//
INetCfgComponentPrivate* pComponentPrivate;
hr = pINetCfgComponent->QueryInterface(
IID_INetCfgComponentPrivate,
reinterpret_cast<void**>(&pComponentPrivate));
if (hr == S_OK)
{
INetCfgComponentSysPrep* pINetCfgComponentSysPrep;
// Query the notify object for its INetCfgComponentSysPrep interface.
// If it doesn't support it, that's okay, we can continue.
//
hr = pComponentPrivate->QueryNotifyObject(
IID_INetCfgComponentSysPrep,
(void**) &pINetCfgComponentSysPrep);
if (S_OK == hr)
{
hr = pINetCfgComponentSysPrep->RestoreAdapterParameters(
strAnswerFile.c_str(), pwszAdapterParamsSections, &guidAdapter);
if (hr != S_OK)
fRet = FALSE; // notify object can't restore settings
ReleaseObj(pINetCfgComponentSysPrep);
}
else if (hr == E_NOINTERFACE)
{
TraceTag(ttidNetSetup, "%s: %S component doesn't support IID_INetCfgComponentSysPrep", __FUNCNAME__, pwszInfId);
}
else
fRet = FALSE; // unexpected error
ReleaseObj(pComponentPrivate);
}
else
{
TraceTag(ttidNetSetup, "%s: can't find IID_INetCfgComponentPrivate for component %S", __FUNCNAME__, pwszInfId);
fRet = FALSE;
}
ReleaseObj (pINetCfgComponent);
}
else
{
// this component wasn't installed before SysPrep
TraceTag(ttidNetSetup, "%s: Can't find %S component", __FUNCNAME__, pwszInfId);
}
} // end if section has at least one key to restore setting
} // end for
// delete the Answer-File in free build.
#ifndef DBG
DeleteFile(strAnswerFile.c_str());
#endif
delete pwifAnswerFile;
return fRet? S_OK : S_FALSE;
}
//
// Function: FSectionHasAtLeastOneKey
//
// Purpose: Check if an Answer-File section has at least one key
//
// Parameters: pwifAnswerFile [IN] - pointer to a CWInfFile object
// pszSection [IN] - the section to check
//
// Returns: TRUE if found else FALSE
//
BOOL FSectionHasAtLeastOneKey(IN CWInfFile* pwifAnswerFile, IN PCWSTR pwszSection)
{
Assert(pwifAnswerFile && pwszSection);
PCWInfSection pwifs = pwifAnswerFile->FindSection(pwszSection);
if (pwifs == NULL)
return FALSE;
PCWInfKey pwifk = pwifs->FirstKey();
if (pwifs == NULL)
return FALSE;
return TRUE;
}
//
// Function: HrGetFirstAdapterInstanceGuid
//
// Purpose: Get the first installed adapter instance guid
//
// Parameters: pnc [IN] - An INetCfg interface
// fDuringSetup [IN] - TRUE when this is being called during the setup time
// pGuidAdapter [IN,OUT] - Receives an instance GUID of an adapter
//
// Returns: HRESULT, S_OK on success
//
HRESULT HrGetFirstAdapterInstanceGuid(INetCfg * pnc, BOOL fDuringSetup, GUID * pGuidAdapter)
{
HRESULT hr = S_OK;
DefineFunctionName("HrGetFirstAdapterInstanceGuid");
TraceTag(ttidNetSetup, "HrGetFirstAdapterInstanceGuid - Enter Find first available adapter");
// Enumerate the available adapters
Assert(pnc && pGuidAdapter);
CIterNetCfgComponent nccIter(pnc, &GUID_DEVCLASS_NET);
INetCfgComponent* pncc;
while (SUCCEEDED(hr) && (S_OK == (hr = nccIter.HrNext(&pncc))))
{
hr = HrIsLanCapableAdapter(pncc);
TraceError("HrIsLanCapableAdapter", hr);
if (S_OK == hr)
{
DWORD dw;
ULONG ul;
TraceTag(ttidNetSetup, "%s: Found HrIsLanCapableAdapter", __FUNCNAME__);
if (! fDuringSetup)
{
// Is it in used in a connection?
hr = HrIsConnection(pncc);
if (hr != S_OK)
{
TraceError("HrGetFirstAdapterInstanceGuid: HrIsConnection", hr);
goto NextAdapter;
}
}
// Is this a virtual adapter?
hr = pncc->GetCharacteristics(&dw);
if (hr != S_OK)
{
TraceError("GetCharacteristics", hr);
goto NextAdapter;
}
if (! (dw & NCF_PHYSICAL))
{
TraceTag(ttidNetSetup, "%s: It is not a PHYSICAL adapter", __FUNCNAME__);
goto NextAdapter;
}
// Check device, if not present skip it
//
hr = pncc->GetDeviceStatus(&ul);
if ((hr != S_OK) || (ul != 0))
{
TraceTag(ttidNetSetup, "%s: device is not active.", __FUNCNAME__);
goto NextAdapter;
}
// Get the adapter instance guid
hr = pncc->GetInstanceGuid(pGuidAdapter);
if (hr != S_OK)
{
TraceError("GetInstanceGuid", hr); //
goto NextAdapter;
}
ReleaseObj(pncc);
return S_OK;
}
NextAdapter:
ReleaseObj(pncc);
hr = S_OK;
}
return hr;
}
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