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cryptnet: Use helper function to verify a certificate's revocation.

This commit is contained in:
Juan Lang 2009-12-03 10:54:50 -08:00 committed by Alexandre Julliard
parent 4b461bc05c
commit 4729cdd1e9
1 changed files with 102 additions and 100 deletions
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202
dlls/cryptnet/cryptnet_main.c
View File

@ -1544,6 +1544,103 @@ BOOL WINAPI CryptRetrieveObjectByUrlW(LPCWSTR pszURL, LPCSTR pszObjectOid,
return ret;
}
static DWORD verify_cert_revocation(PCCERT_CONTEXT cert, DWORD index,
FILETIME *pTime, DWORD dwFlags, PCERT_REVOCATION_PARA pRevPara,
PCERT_REVOCATION_STATUS pRevStatus)
{
BOOL ret;
DWORD error = ERROR_SUCCESS, cbUrlArray;
ret = CryptGetObjectUrl(URL_OID_CERTIFICATE_CRL_DIST_POINT, (void *)cert,
0, NULL, &cbUrlArray, NULL, NULL, NULL);
if (!ret && GetLastError() == CRYPT_E_NOT_FOUND)
{
error = CRYPT_E_NO_REVOCATION_CHECK;
pRevStatus->dwIndex = index;
}
else if (ret)
{
CRYPT_URL_ARRAY *urlArray = CryptMemAlloc(cbUrlArray);
if (urlArray)
{
DWORD j, retrievalFlags = 0, startTime, endTime, timeout;
ret = CryptGetObjectUrl(URL_OID_CERTIFICATE_CRL_DIST_POINT,
(void *)cert, 0, urlArray, &cbUrlArray, NULL, NULL, NULL);
if (dwFlags & CERT_VERIFY_CACHE_ONLY_BASED_REVOCATION)
retrievalFlags |= CRYPT_CACHE_ONLY_RETRIEVAL;
if (dwFlags & CERT_VERIFY_REV_ACCUMULATIVE_TIMEOUT_FLAG &&
pRevPara && pRevPara->cbSize >= offsetof(CERT_REVOCATION_PARA,
dwUrlRetrievalTimeout) + sizeof(DWORD))
{
startTime = GetTickCount();
endTime = startTime + pRevPara->dwUrlRetrievalTimeout;
timeout = pRevPara->dwUrlRetrievalTimeout;
}
else
endTime = timeout = 0;
for (j = 0; ret && j < urlArray->cUrl; j++)
{
PCCRL_CONTEXT crl;
ret = CryptRetrieveObjectByUrlW(urlArray->rgwszUrl[j],
CONTEXT_OID_CRL, retrievalFlags, timeout, (void **)&crl,
NULL, NULL, NULL, NULL);
if (ret)
{
if (CertVerifyCRLTimeValidity(pTime, crl->pCrlInfo))
{
/* The CRL isn't time valid */
error = CRYPT_E_NO_REVOCATION_CHECK;
ret = FALSE;
}
else
{
PCRL_ENTRY entry = NULL;
CertFindCertificateInCRL(cert, crl, 0, NULL, &entry);
if (entry)
{
error = CRYPT_E_REVOKED;
pRevStatus->dwIndex = index;
ret = FALSE;
}
}
if (ret && timeout)
{
DWORD time = GetTickCount();
if ((int)(endTime - time) <= 0)
{
error = ERROR_TIMEOUT;
pRevStatus->dwIndex = index;
ret = FALSE;
}
else
timeout = endTime - time;
}
CertFreeCRLContext(crl);
}
else
error = CRYPT_E_REVOCATION_OFFLINE;
}
CryptMemFree(urlArray);
}
else
{
error = ERROR_OUTOFMEMORY;
pRevStatus->dwIndex = index;
}
}
else
{
error = GetLastError();
pRevStatus->dwIndex = index;
}
return error;
}
typedef struct _CERT_REVOCATION_PARA_NO_EXTRA_FIELDS {
DWORD cbSize;
PCCERT_CONTEXT pIssuerCert;
@ -1596,113 +1693,18 @@ BOOL WINAPI CertDllVerifyRevocation(DWORD dwEncodingType, DWORD dwRevType,
}
memset(&pRevStatus->dwIndex, 0, pRevStatus->cbSize - sizeof(DWORD));
if (dwRevType != CERT_CONTEXT_REVOCATION_TYPE)
{
error = CRYPT_E_NO_REVOCATION_CHECK;
ret = FALSE;
}
else
{
ret = TRUE;
for (i = 0; ret && i < cContext; i++)
{
DWORD cbUrlArray;
ret = CryptGetObjectUrl(URL_OID_CERTIFICATE_CRL_DIST_POINT,
rgpvContext[i], 0, NULL, &cbUrlArray, NULL, NULL, NULL);
if (!ret && GetLastError() == CRYPT_E_NOT_FOUND)
{
error = CRYPT_E_NO_REVOCATION_CHECK;
pRevStatus->dwIndex = i;
}
else if (ret)
{
CRYPT_URL_ARRAY *urlArray = CryptMemAlloc(cbUrlArray);
if (urlArray)
{
DWORD j, retrievalFlags = 0, startTime, endTime, timeout;
ret = CryptGetObjectUrl(URL_OID_CERTIFICATE_CRL_DIST_POINT,
rgpvContext[i], 0, urlArray, &cbUrlArray, NULL, NULL,
NULL);
if (dwFlags & CERT_VERIFY_CACHE_ONLY_BASED_REVOCATION)
retrievalFlags |= CRYPT_CACHE_ONLY_RETRIEVAL;
if ((dwFlags & CERT_VERIFY_REV_ACCUMULATIVE_TIMEOUT_FLAG) &&
pRevPara &&
pRevPara->cbSize >= offsetof(CERT_REVOCATION_PARA,
dwUrlRetrievalTimeout) + sizeof(DWORD))
{
startTime = GetTickCount();
endTime = startTime + pRevPara->dwUrlRetrievalTimeout;
timeout = pRevPara->dwUrlRetrievalTimeout;
}
else
endTime = timeout = 0;
for (j = 0; ret && j < urlArray->cUrl; j++)
{
PCCRL_CONTEXT crl;
ret = CryptRetrieveObjectByUrlW(urlArray->rgwszUrl[j],
CONTEXT_OID_CRL, retrievalFlags, timeout,
(void **)&crl, NULL, NULL, NULL, NULL);
if (ret)
{
if (CertVerifyCRLTimeValidity(pTime, crl->pCrlInfo))
{
/* The CRL isn't time valid */
error = CRYPT_E_NO_REVOCATION_CHECK;
ret = FALSE;
}
else
{
PCRL_ENTRY entry = NULL;
CertFindCertificateInCRL(
rgpvContext[i], crl, 0, NULL,
&entry);
if (entry)
{
error = CRYPT_E_REVOKED;
pRevStatus->dwIndex = i;
ret = FALSE;
}
}
if (ret && timeout)
{
DWORD time = GetTickCount();
if ((int)(endTime - time) <= 0)
{
error = ERROR_TIMEOUT;
pRevStatus->dwIndex = i;
ret = FALSE;
}
else
timeout = endTime - time;
}
CertFreeCRLContext(crl);
}
else
error = CRYPT_E_REVOCATION_OFFLINE;
}
CryptMemFree(urlArray);
}
else
{
error = ERROR_OUTOFMEMORY;
pRevStatus->dwIndex = i;
ret = FALSE;
}
}
else
pRevStatus->dwIndex = i;
}
for (i = 0; !error && i < cContext; i++)
error = verify_cert_revocation(rgpvContext[i], i, pTime, dwFlags,
pRevPara, pRevStatus);
}
if (!ret)
if (error)
{
SetLastError(error);
pRevStatus->dwError = error;
ret = FALSE;
}
TRACE("returning %d (%08x)\n", ret, error);
return ret;