Problem on a sample code in "Windows SDK" (COM interface)?


C

creative22

Hi all

I've built a sample code named "enrollCustomCMC" in Windows SDK at
"Microsoft SDKs\Windows\v6.1\Samples\Security\X509 Certificate Enrollment\VC"
directory, but when the ".exe" file is built and I use it with the "Command
Prompt", I see error in first "CoCreateInstance" function as
"REGDB_E_CLASSNOTREG" that means: "Class not registered"!

I couldn't find the reason even with debugging!
The code is written using COM interface, here's the code:

#include <stdio.h>
#include <certenroll.h>
#include <certsrv.h>
#include <certcli.h>
#include <wincrypt.h>
#include "enrollCommon.h"

void Usage()
{
wprintf(L"Usage:\n");
wprintf(L"enrollCustomCMC <Name> <Value> <DNS> <EKU> \n");
wprintf(L"Example: enrollCustomCMC Name Value ");
wprintf(L"www.adatum.com 1.3.6.1.5.5.7.3.1\n");
}

HRESULT __cdecl wmain(__in int argc, __in_ecount(argc) wchar_t *argv[])
{
HRESULT hr = S_OK;
bool fCoInit = false;
ICertRequest2* pCertRequest2 = NULL;
ICertConfig* pCertConfig = NULL;
IX509Enrollment* pEnroll = NULL;
IX509CertificateRequest* pRequest = NULL;
IX509CertificateRequestPkcs10* pPkcs10 = NULL;
IX509CertificateRequestCmc* pCmc = NULL;
IX509Extensions* pExtensions = NULL;
IX509Extension* pExtension1 = NULL;
IX509Extension* pExtension2 = NULL;
IX509ExtensionEnhancedKeyUsage* pExtensionEKU = NULL;
IX509ExtensionAlternativeNames* pExtensionSAN = NULL;
IObjectId *pEKUObjectId = NULL;
IObjectId *pSANObjectId = NULL;
IObjectIds *pEKUObjectIds = NULL;
IObjectIds *pSANObjectIds = NULL;
IAlternativeName * anDnsName = NULL;
IAlternativeNames * pAlternativeNames = NULL;
IX509NameValuePair *pPair = NULL;
IX509NameValuePairs *pPairs = NULL;
PCWSTR pwszName;
PCWSTR pwszValue;
PCWSTR pwszDnsName;
PCWSTR pwszEKU;
BSTR strCAConfig = NULL;
BSTR strDnsName = NULL;
BSTR strName = NULL;
BSTR strValue = NULL;
BSTR strEKU = NULL;
BSTR strRequest = NULL;
BSTR strCert = NULL;
BSTR strDisposition = NULL;
LONG pDisposition = 0;

// Process command line arguments
if (argc != 5) {
Usage();
hr = E_INVALIDARG;
_JumpError(hr, error, "invalid arg");
}
else
{
pwszName = argv[1];
pwszValue = argv[2];
pwszDnsName = argv[3];
pwszEKU = argv[4];
}

// CoInitializeEx
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
_JumpIfError(hr, error, "CoInitializeEx");
fCoInit = true;

// Create IX509CertificateRequestPkcs10
hr = CoCreateInstance(
__uuidof(CX509CertificateRequestPkcs10),
NULL, // pUnkOuter
CLSCTX_INPROC_SERVER,
__uuidof(IX509CertificateRequestPkcs10),
(void **) &pPkcs10);
_JumpIfError(hr, error, "CoCreateInstance");

// Initialize IX509CertificateRequestPkcs10
hr = pPkcs10->Initialize(ContextMachine);
_JumpIfError(hr, error, "Initialize");

// Create IX509CertificateRequestCmc
hr = CoCreateInstance(
__uuidof(CX509CertificateRequestCmc),
NULL, // pUnkOuter
CLSCTX_INPROC_SERVER,
__uuidof(IX509CertificateRequestCmc),
(void **) &pCmc);
_JumpIfError(hr, error, "CoCreateInstance");

// Initialize CMC request
hr = pCmc->InitializeFromInnerRequest(pPkcs10);
_JumpIfError(hr, error, "InitializeFromInnerRequest");


/* Create EKU extention from an OID */

// Create IObjectId
hr = CoCreateInstance(
__uuidof(CObjectId),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IObjectId),
(void **) &pEKUObjectId);
_JumpIfError(hr, error, "CoCreateInstance");

// Allocate BSTR for EKU OID
strEKU = SysAllocString(pwszEKU);
if (NULL == strEKU)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "SysAllocString");
}

// Initialize IObjectId from EKU OID
hr = pEKUObjectId->InitializeFromValue(strEKU);
_JumpIfError(hr, error, "InitializeFromValue");

// Create IObjectIds
hr = CoCreateInstance(
__uuidof(CObjectIds),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IObjectIds),
(void **) &pEKUObjectIds);
_JumpIfError(hr, error, "CoCreateInstance");

// Add IObjectId into IObjectIds collection
hr = pEKUObjectIds->Add(pEKUObjectId);
_JumpIfError(hr, error, "Add");

// Create IX509ExtensionEnhancedKeyUsage
hr = CoCreateInstance(
__uuidof(CX509ExtensionEnhancedKeyUsage),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IX509ExtensionEnhancedKeyUsage),
(void **) &pExtensionEKU);
_JumpIfError(hr, error, "CoCreateInstance");

// Initialize IX509ExtensionEnhancedKeyUsage from IObjectIds
hr = pExtensionEKU->InitializeEncode(pEKUObjectIds);
_JumpIfError(hr, error, "InitializeEncode");

// QueryInterface of IX509Extension
hr = pExtensionEKU->QueryInterface(
__uuidof(IX509Extension),
(VOID **)&pExtension1);
_JumpIfError(hr, error, "QueryInterface");


/* Create SAN extention from a DNS Name */

// Create IAlternativeName
hr = CoCreateInstance(
__uuidof(CAlternativeName),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IAlternativeName),
(void **) &anDnsName);
_JumpIfError(hr, error, "CoCreateInstance");

// Allocate BSTR for DNS name
strDnsName = SysAllocString(pwszDnsName);
if (NULL == strDnsName)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "SysAllocString");
}

// Initialize IAlternativeName
hr = anDnsName->InitializeFromString(
XCN_CERT_ALT_NAME_DNS_NAME,
strDnsName);
_JumpIfError(hr, error, "InitializeFromString");

// Create IAlternativeNames
hr = CoCreateInstance(
__uuidof(CAlternativeNames),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IAlternativeNames),
(void **) &pAlternativeNames);
_JumpIfError(hr, error, "CoCreateInstance");

// Add IAlternativeName into IAlternativeNames collection
hr = pAlternativeNames->Add(anDnsName);
_JumpIfError(hr, error, "Add");

// Create IX509ExtensionAlternativeNames
hr = CoCreateInstance(
__uuidof(CX509ExtensionAlternativeNames),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IX509ExtensionAlternativeNames),
(void **) &pExtensionSAN);
_JumpIfError(hr, error, "CoCreateInstance");

// Initialize IX509ExtensionAlternativeNames
hr = pExtensionSAN->InitializeEncode(pAlternativeNames);
_JumpIfError(hr, error, "InitializeEncode");

// QueryInterface of IX509Extension
hr = pExtensionSAN->QueryInterface(
__uuidof(IX509Extension),
(VOID **)&pExtension2);
_JumpIfError(hr, error, "QueryInterface");


/* Add EKU and SAN extension into CMC request */

// Get extensions from the CMC request
hr = pCmc->get_X509Extensions(&pExtensions);
_JumpIfError(hr, error, "get_X509Extensions");

// Add EKU extension into the request
hr = pExtensions->Add(pExtension1);
_JumpIfError(hr, error, "Add");

// Add SAN extension into the request
hr = pExtensions->Add(pExtension2);
_JumpIfError(hr, error, "Add");


/* Create name value pair and add it into CMC request */

// Create IX509NameValuePair
hr = CoCreateInstance(
__uuidof(CX509NameValuePair),
NULL, // pUnkOuter
CLSCTX_INPROC_SERVER,
__uuidof(IX509NameValuePair),
(void **) &pPair);
_JumpIfError(hr, error, "CoCreateInstance");

// Allocate BSTR for name
strName = SysAllocString(pwszName);
if (NULL == strName)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "SysAllocString");
}

// Allocate BSTR for value
strValue = SysAllocString(pwszValue);
if (NULL == strValue)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "SysAllocString");
}

// Initialize IX509NameValuePair
hr = pPair->Initialize(strName, strValue);
_JumpIfError(hr, error, "Initialize");

// Get IX509NameValuePairs from CMC request
hr = pCmc->get_NameValuePairs(&pPairs);
_JumpIfError(hr, error, "get_NameValuePairs");

// Add IX509NameValuePair into IX509NameValuePairs collection
hr = pPairs->Add(pPair);
_JumpIfError(hr, error, "Add");


/* Create enrollment request */

// Create IX509Enrollment
hr = CoCreateInstance(
__uuidof(CX509Enrollment),
NULL, // pUnkOuter
CLSCTX_INPROC_SERVER,
__uuidof(IX509Enrollment),
(void **) &pEnroll);
_JumpIfError(hr, error, "CoCreateInstance");

// Initialize IX509Enrollment from CMC request
hr = pEnroll->InitializeFromRequest(pCmc);
_JumpIfError(hr, error, "InitializeFromRequest");

// Create request
hr = pEnroll->CreateRequest(
XCN_CRYPT_STRING_BASE64,
&strRequest);
_JumpIfError(hr, error, "CreateRequest");


/* Submit request to SA CA, get response and install it */

// Create ICertConfig
hr = CoCreateInstance(
__uuidof(CCertConfig),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(ICertConfig),
(void**)&pCertConfig);
_JumpIfError(hr, error, "CoCreateInstance");

// Get the CA Config from UI
hr = pCertConfig->GetConfig(CC_UIPICKCONFIG, &strCAConfig);
_JumpIfError(hr, error, "GetConfig");

// Create ICertRequest2
hr = CoCreateInstance(
__uuidof(CCertRequest),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(ICertRequest2),
(void**)&pCertRequest2);
_JumpIfError(hr, error, "CoCreateInstance");

// Submit the request
hr = pCertRequest2->Submit(
CR_IN_BASE64 | CR_IN_FORMATANY,
strRequest,
NULL,
strCAConfig,
&pDisposition);
_JumpIfError(hr, error, "Submit");

// Check the submission status
if (pDisposition != CR_DISP_ISSUED) // Not enrolled
{
hr = pCertRequest2->GetDispositionMessage(&strDisposition);
_JumpIfError(hr, error, "GetDispositionMessage");

if (pDisposition == CR_DISP_UNDER_SUBMISSION) // Pending
{
wprintf(L"The submission is pending: %ws\n", strDisposition);
_JumpError(hr, error, "Submit");
}
else // Failed
{
wprintf(L"The submission failed: %ws\n", strDisposition);
pCertRequest2->GetLastStatus(&hr);
_JumpError(hr, error, "Submit");
}
}

// Get the certifcate
hr = pCertRequest2->GetCertificate(
CR_OUT_BASE64 | CR_OUT_CHAIN,
&strCert);
_JumpIfError(hr, error, "GetCertificate");

// Install the certifcate
hr = pEnroll->InstallResponse(
AllowNone,
strCert,
XCN_CRYPT_STRING_BASE64,
NULL);
_JumpIfError(hr, error, "InstallResponse");

error:
SysFreeString(strCAConfig);
SysFreeString(strDnsName);
SysFreeString(strName);
SysFreeString(strValue);
SysFreeString(strEKU);
SysFreeString(strRequest);
SysFreeString(strCert);
SysFreeString(strDisposition);

if (NULL != pCertRequest2) pCertRequest2->Release();
if (NULL != pCertConfig) pCertConfig->Release();
if (NULL != pEnroll) pEnroll->Release();
if (NULL != pRequest) pRequest->Release();
if (NULL != pPkcs10) pPkcs10->Release();
if (NULL != pCmc) pCmc->Release();
if (NULL != pExtensions) pExtensions->Release();
if (NULL != pExtension1) pExtension1->Release();
if (NULL != pExtension2) pExtension2->Release();
if (NULL != pExtensionEKU) pExtensionEKU->Release();
if (NULL != pExtensionSAN) pExtensionSAN->Release();
if (NULL != pEKUObjectId) pEKUObjectId->Release();
if (NULL != pSANObjectId) pSANObjectId->Release();
if (NULL != pEKUObjectIds) pEKUObjectIds->Release();
if (NULL != pSANObjectIds) pSANObjectIds->Release();
if (NULL != anDnsName) anDnsName->Release();
if (NULL != pAlternativeNames) pAlternativeNames->Release();
if (NULL != pPair) pPair->Release();
if (NULL != pPairs) pPairs->Release();
if (fCoInit) CoUninitialize();
return hr;
}



What's the problem?

And does this code need to a CA(certification Authority) to send request for?

Is it possible to run this code on XP client than Vista?

I asked this question on "Windows SDK" forum, but didn't get any respose!!

Please help me...
THX.
 
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