Sweden-Number/dlls/crypt32/crl.c

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/*
* Copyright 2006 Juan Lang
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include <assert.h>
#include <stdarg.h>
#define NONAMELESSUNION
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#include "windef.h"
#include "winbase.h"
#include "wincrypt.h"
#include "wine/debug.h"
#include "crypt32_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
static void CRL_free(context_t *context)
{
crl_t *crl = (crl_t*)context;
CryptMemFree(crl->ctx.pbCrlEncoded);
LocalFree(crl->ctx.pCrlInfo);
}
static const context_vtbl_t crl_vtbl;
static char *copy_string(char *p, char **dst, const char *src)
{
size_t size = strlen(src) + 1;
*dst = memcpy(p, src, size);
return p + size;
}
static char *copy_blob(char *p, DATA_BLOB *dst, const DATA_BLOB *src)
{
size_t size = src->cbData;
dst->cbData = size;
dst->pbData = memcpy(p, src->pbData, size);
return p + size;
}
static char *copy_extension(char *p, CERT_EXTENSION *dst, const CERT_EXTENSION *src)
{
p = copy_string(p, &dst->pszObjId, src->pszObjId);
dst->fCritical = src->fCritical;
return copy_blob(p, &dst->Value, &src->Value);
}
static CRL_INFO *clone_crl_info(const CRL_INFO *src)
{
size_t size = sizeof(CRL_INFO);
CRL_INFO *dst;
DWORD i, j;
char *p;
if (src->SignatureAlgorithm.pszObjId)
size += strlen(src->SignatureAlgorithm.pszObjId) + 1;
size += src->SignatureAlgorithm.Parameters.cbData;
size += src->Issuer.cbData;
for (i = 0; i < src->cCRLEntry; ++i)
{
const CRL_ENTRY *entry = &src->rgCRLEntry[i];
size += sizeof(CRL_ENTRY);
size += entry->SerialNumber.cbData;
for (j = 0; j < entry->cExtension; ++j)
{
const CERT_EXTENSION *ext = &entry->rgExtension[j];
size += sizeof(CERT_EXTENSION);
size += strlen(ext->pszObjId) + 1;
size += ext->Value.cbData;
}
}
for (j = 0; j < src->cExtension; ++j)
{
const CERT_EXTENSION *ext = &src->rgExtension[j];
size += sizeof(CERT_EXTENSION);
size += strlen(ext->pszObjId) + 1;
size += ext->Value.cbData;
}
if (!(dst = LocalAlloc(LPTR, size)))
return NULL;
p = (char *)(dst + 1);
dst->dwVersion = src->dwVersion;
if (src->SignatureAlgorithm.pszObjId)
p = copy_string(p, &dst->SignatureAlgorithm.pszObjId, src->SignatureAlgorithm.pszObjId);
p = copy_blob(p, &dst->SignatureAlgorithm.Parameters, &src->SignatureAlgorithm.Parameters);
p = copy_blob(p, &dst->Issuer, &src->Issuer);
dst->ThisUpdate = src->ThisUpdate;
dst->NextUpdate = src->NextUpdate;
dst->cCRLEntry = src->cCRLEntry;
dst->rgCRLEntry = (CRL_ENTRY *)p;
p += src->cCRLEntry * sizeof(CRL_ENTRY);
dst->cExtension = src->cExtension;
dst->rgExtension = (CERT_EXTENSION *)p;
p += src->cExtension * sizeof(CERT_EXTENSION);
for (i = 0; i < src->cCRLEntry; ++i)
{
const CRL_ENTRY *src_entry = &src->rgCRLEntry[i];
CRL_ENTRY *dst_entry = &dst->rgCRLEntry[i];
p = copy_blob(p, &dst_entry->SerialNumber, &src_entry->SerialNumber);
dst_entry->RevocationDate = src_entry->RevocationDate;
dst_entry->cExtension = src_entry->cExtension;
dst_entry->rgExtension = (CERT_EXTENSION *)p;
p += src_entry->cExtension * sizeof(CERT_EXTENSION);
for (j = 0; j < src_entry->cExtension; ++j)
p = copy_extension(p, &dst_entry->rgExtension[j], &src_entry->rgExtension[j]);
}
for (j = 0; j < src->cExtension; ++j)
p = copy_extension(p, &dst->rgExtension[j], &src->rgExtension[j]);
assert(p - (char *)dst == size);
return dst;
}
static context_t *CRL_clone(context_t *context, WINECRYPT_CERTSTORE *store, BOOL use_link)
{
crl_t *dst;
if(use_link) {
if (!(dst = (crl_t *)Context_CreateLinkContext(sizeof(CRL_CONTEXT), context, store)))
return NULL;
}else {
const crl_t *src = (const crl_t*)context;
if (!(dst = (crl_t *)Context_CreateDataContext(sizeof(CRL_CONTEXT), &crl_vtbl, store)))
return NULL;
Context_CopyProperties(&dst->ctx, &src->ctx);
dst->ctx.dwCertEncodingType = src->ctx.dwCertEncodingType;
dst->ctx.pbCrlEncoded = CryptMemAlloc(src->ctx.cbCrlEncoded);
memcpy(dst->ctx.pbCrlEncoded, src->ctx.pbCrlEncoded, src->ctx.cbCrlEncoded);
dst->ctx.cbCrlEncoded = src->ctx.cbCrlEncoded;
if (!(dst->ctx.pCrlInfo = clone_crl_info(src->ctx.pCrlInfo)))
{
CertFreeCRLContext(&dst->ctx);
return NULL;
}
}
dst->ctx.hCertStore = store;
return &dst->base;
}
static const context_vtbl_t crl_vtbl = {
CRL_free,
CRL_clone
};
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PCCRL_CONTEXT WINAPI CertCreateCRLContext(DWORD dwCertEncodingType,
const BYTE* pbCrlEncoded, DWORD cbCrlEncoded)
{
crl_t *crl = NULL;
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BOOL ret;
PCRL_INFO crlInfo = NULL;
BYTE *data = NULL;
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DWORD size = 0;
TRACE("(%08x, %p, %d)\n", dwCertEncodingType, pbCrlEncoded,
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cbCrlEncoded);
if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING)
{
SetLastError(E_INVALIDARG);
return NULL;
}
ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT_CRL_TO_BE_SIGNED,
pbCrlEncoded, cbCrlEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL,
&crlInfo, &size);
if (!ret)
return NULL;
crl = (crl_t*)Context_CreateDataContext(sizeof(CRL_CONTEXT), &crl_vtbl, &empty_store);
if (!crl)
return NULL;
data = CryptMemAlloc(cbCrlEncoded);
if (!data)
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{
Context_Release(&crl->base);
return NULL;
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}
memcpy(data, pbCrlEncoded, cbCrlEncoded);
crl->ctx.dwCertEncodingType = dwCertEncodingType;
crl->ctx.pbCrlEncoded = data;
crl->ctx.cbCrlEncoded = cbCrlEncoded;
crl->ctx.pCrlInfo = crlInfo;
crl->ctx.hCertStore = &empty_store;
return &crl->ctx;
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}
BOOL WINAPI CertAddEncodedCRLToStore(HCERTSTORE hCertStore,
DWORD dwCertEncodingType, const BYTE *pbCrlEncoded, DWORD cbCrlEncoded,
DWORD dwAddDisposition, PCCRL_CONTEXT *ppCrlContext)
{
PCCRL_CONTEXT crl = CertCreateCRLContext(dwCertEncodingType,
pbCrlEncoded, cbCrlEncoded);
BOOL ret;
TRACE("(%p, %08x, %p, %d, %08x, %p)\n", hCertStore, dwCertEncodingType,
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pbCrlEncoded, cbCrlEncoded, dwAddDisposition, ppCrlContext);
if (crl)
{
ret = CertAddCRLContextToStore(hCertStore, crl, dwAddDisposition,
ppCrlContext);
CertFreeCRLContext(crl);
}
else
ret = FALSE;
return ret;
}
typedef BOOL (*CrlCompareFunc)(PCCRL_CONTEXT pCrlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara);
static BOOL compare_crl_any(PCCRL_CONTEXT pCrlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
return TRUE;
}
static BOOL compare_crl_issued_by(PCCRL_CONTEXT pCrlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
BOOL ret;
if (pvPara)
{
PCCERT_CONTEXT issuer = pvPara;
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ret = CertCompareCertificateName(issuer->dwCertEncodingType,
&issuer->pCertInfo->Subject, &pCrlContext->pCrlInfo->Issuer);
if (ret && (dwFlags & CRL_FIND_ISSUED_BY_SIGNATURE_FLAG))
ret = CryptVerifyCertificateSignatureEx(0,
issuer->dwCertEncodingType,
CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL, (void *)pCrlContext,
CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)issuer, 0, NULL);
if (ret && (dwFlags & CRL_FIND_ISSUED_BY_AKI_FLAG))
{
PCERT_EXTENSION ext = CertFindExtension(
szOID_AUTHORITY_KEY_IDENTIFIER2, pCrlContext->pCrlInfo->cExtension,
pCrlContext->pCrlInfo->rgExtension);
if (ext)
{
CERT_AUTHORITY_KEY_ID2_INFO *info;
DWORD size;
if ((ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &size)))
{
if (info->AuthorityCertIssuer.cAltEntry &&
info->AuthorityCertSerialNumber.cbData)
{
PCERT_ALT_NAME_ENTRY directoryName = NULL;
DWORD i;
for (i = 0; !directoryName &&
i < info->AuthorityCertIssuer.cAltEntry; i++)
if (info->AuthorityCertIssuer.rgAltEntry[i].
dwAltNameChoice == CERT_ALT_NAME_DIRECTORY_NAME)
directoryName =
&info->AuthorityCertIssuer.rgAltEntry[i];
if (directoryName)
{
ret = CertCompareCertificateName(
issuer->dwCertEncodingType,
&issuer->pCertInfo->Subject,
&directoryName->u.DirectoryName);
if (ret)
ret = CertCompareIntegerBlob(
&issuer->pCertInfo->SerialNumber,
&info->AuthorityCertSerialNumber);
}
else
{
FIXME("no supported name type in authority key id2\n");
ret = FALSE;
}
}
else if (info->KeyId.cbData)
{
DWORD size;
ret = CertGetCertificateContextProperty(issuer,
CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
if (ret && size == info->KeyId.cbData)
{
LPBYTE buf = CryptMemAlloc(size);
if (buf)
{
CertGetCertificateContextProperty(issuer,
CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
ret = !memcmp(buf, info->KeyId.pbData, size);
CryptMemFree(buf);
}
else
ret = FALSE;
}
else
ret = FALSE;
}
else
{
FIXME("unsupported value for AKI extension\n");
ret = FALSE;
}
LocalFree(info);
}
}
/* else: a CRL without an AKI matches any cert */
}
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}
else
ret = TRUE;
return ret;
}
static BOOL compare_crl_existing(PCCRL_CONTEXT pCrlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
BOOL ret;
if (pvPara)
{
PCCRL_CONTEXT crl = pvPara;
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ret = CertCompareCertificateName(pCrlContext->dwCertEncodingType,
&pCrlContext->pCrlInfo->Issuer, &crl->pCrlInfo->Issuer);
}
else
ret = TRUE;
return ret;
}
static BOOL compare_crl_issued_for(PCCRL_CONTEXT pCrlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
const CRL_FIND_ISSUED_FOR_PARA *para = pvPara;
BOOL ret;
ret = CertCompareCertificateName(para->pIssuerCert->dwCertEncodingType,
&para->pIssuerCert->pCertInfo->Issuer, &pCrlContext->pCrlInfo->Issuer);
return ret;
}
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PCCRL_CONTEXT WINAPI CertFindCRLInStore(HCERTSTORE hCertStore,
DWORD dwCertEncodingType, DWORD dwFindFlags, DWORD dwFindType,
const void *pvFindPara, PCCRL_CONTEXT pPrevCrlContext)
{
PCCRL_CONTEXT ret;
CrlCompareFunc compare;
TRACE("(%p, %d, %d, %d, %p, %p)\n", hCertStore, dwCertEncodingType,
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dwFindFlags, dwFindType, pvFindPara, pPrevCrlContext);
switch (dwFindType)
{
case CRL_FIND_ANY:
compare = compare_crl_any;
break;
case CRL_FIND_ISSUED_BY:
compare = compare_crl_issued_by;
break;
case CRL_FIND_EXISTING:
compare = compare_crl_existing;
break;
case CRL_FIND_ISSUED_FOR:
compare = compare_crl_issued_for;
break;
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default:
FIXME("find type %08x unimplemented\n", dwFindType);
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compare = NULL;
}
if (compare)
{
BOOL matches = FALSE;
ret = pPrevCrlContext;
do {
ret = CertEnumCRLsInStore(hCertStore, ret);
if (ret)
matches = compare(ret, dwFindType, dwFindFlags, pvFindPara);
} while (ret != NULL && !matches);
if (!ret)
SetLastError(CRYPT_E_NOT_FOUND);
}
else
{
SetLastError(CRYPT_E_NOT_FOUND);
ret = NULL;
}
return ret;
}
PCCRL_CONTEXT WINAPI CertGetCRLFromStore(HCERTSTORE hCertStore,
PCCERT_CONTEXT pIssuerContext, PCCRL_CONTEXT pPrevCrlContext, DWORD *pdwFlags)
{
static const DWORD supportedFlags = CERT_STORE_SIGNATURE_FLAG |
CERT_STORE_TIME_VALIDITY_FLAG | CERT_STORE_BASE_CRL_FLAG |
CERT_STORE_DELTA_CRL_FLAG;
PCCRL_CONTEXT ret;
TRACE("(%p, %p, %p, %08x)\n", hCertStore, pIssuerContext, pPrevCrlContext,
*pdwFlags);
if (*pdwFlags & ~supportedFlags)
{
SetLastError(E_INVALIDARG);
return NULL;
}
if (pIssuerContext)
ret = CertFindCRLInStore(hCertStore, pIssuerContext->dwCertEncodingType,
0, CRL_FIND_ISSUED_BY, pIssuerContext, pPrevCrlContext);
else
ret = CertFindCRLInStore(hCertStore, 0, 0, CRL_FIND_ANY, NULL,
pPrevCrlContext);
if (ret)
{
if (*pdwFlags & CERT_STORE_TIME_VALIDITY_FLAG)
{
if (0 == CertVerifyCRLTimeValidity(NULL, ret->pCrlInfo))
*pdwFlags &= ~CERT_STORE_TIME_VALIDITY_FLAG;
}
if (*pdwFlags & CERT_STORE_SIGNATURE_FLAG)
{
if (CryptVerifyCertificateSignatureEx(0, ret->dwCertEncodingType,
CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL, (void *)ret,
CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)pIssuerContext, 0,
NULL))
*pdwFlags &= ~CERT_STORE_SIGNATURE_FLAG;
}
}
return ret;
}
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PCCRL_CONTEXT WINAPI CertDuplicateCRLContext(PCCRL_CONTEXT pCrlContext)
{
TRACE("(%p)\n", pCrlContext);
if (pCrlContext)
Context_AddRef(&crl_from_ptr(pCrlContext)->base);
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return pCrlContext;
}
BOOL WINAPI CertFreeCRLContext(PCCRL_CONTEXT pCrlContext)
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{
TRACE("(%p)\n", pCrlContext);
if (pCrlContext)
Context_Release(&crl_from_ptr(pCrlContext)->base);
return TRUE;
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}
DWORD WINAPI CertEnumCRLContextProperties(PCCRL_CONTEXT pCRLContext,
DWORD dwPropId)
{
TRACE("(%p, %d)\n", pCRLContext, dwPropId);
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return ContextPropertyList_EnumPropIDs(crl_from_ptr(pCRLContext)->base.properties, dwPropId);
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}
static BOOL CRLContext_SetProperty(crl_t *crl, DWORD dwPropId,
DWORD dwFlags, const void *pvData);
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static BOOL CRLContext_GetHashProp(crl_t *crl, DWORD dwPropId,
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ALG_ID algID, const BYTE *toHash, DWORD toHashLen, void *pvData,
DWORD *pcbData)
{
BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
pcbData);
if (ret && pvData)
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{
CRYPT_DATA_BLOB blob = { *pcbData, pvData };
ret = CRLContext_SetProperty(crl, dwPropId, 0, &blob);
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}
return ret;
}
static BOOL CRLContext_GetProperty(crl_t *crl, DWORD dwPropId,
void *pvData, DWORD *pcbData)
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{
BOOL ret;
CRYPT_DATA_BLOB blob;
TRACE("(%p, %d, %p, %p)\n", crl, dwPropId, pvData, pcbData);
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if (crl->base.properties)
ret = ContextPropertyList_FindProperty(crl->base.properties, dwPropId, &blob);
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else
ret = FALSE;
if (ret)
{
if (!pvData)
*pcbData = blob.cbData;
else if (*pcbData < blob.cbData)
{
SetLastError(ERROR_MORE_DATA);
*pcbData = blob.cbData;
ret = FALSE;
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}
else
{
memcpy(pvData, blob.pbData, blob.cbData);
*pcbData = blob.cbData;
}
}
else
{
/* Implicit properties */
switch (dwPropId)
{
case CERT_SHA1_HASH_PROP_ID:
ret = CRLContext_GetHashProp(crl, dwPropId, CALG_SHA1,
crl->ctx.pbCrlEncoded, crl->ctx.cbCrlEncoded, pvData,
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pcbData);
break;
case CERT_MD5_HASH_PROP_ID:
ret = CRLContext_GetHashProp(crl, dwPropId, CALG_MD5,
crl->ctx.pbCrlEncoded, crl->ctx.cbCrlEncoded, pvData,
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pcbData);
break;
default:
SetLastError(CRYPT_E_NOT_FOUND);
}
}
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CertGetCRLContextProperty(PCCRL_CONTEXT pCRLContext,
DWORD dwPropId, void *pvData, DWORD *pcbData)
{
BOOL ret;
TRACE("(%p, %d, %p, %p)\n", pCRLContext, dwPropId, pvData, pcbData);
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switch (dwPropId)
{
case 0:
case CERT_CERT_PROP_ID:
case CERT_CRL_PROP_ID:
case CERT_CTL_PROP_ID:
SetLastError(E_INVALIDARG);
ret = FALSE;
break;
case CERT_ACCESS_STATE_PROP_ID:
if (!pvData)
{
*pcbData = sizeof(DWORD);
ret = TRUE;
}
else if (*pcbData < sizeof(DWORD))
{
SetLastError(ERROR_MORE_DATA);
*pcbData = sizeof(DWORD);
ret = FALSE;
}
else
{
ret = CertGetStoreProperty(pCRLContext->hCertStore, dwPropId, pvData, pcbData);
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}
break;
default:
ret = CRLContext_GetProperty(crl_from_ptr(pCRLContext), dwPropId, pvData, pcbData);
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}
return ret;
}
static BOOL CRLContext_SetProperty(crl_t *crl, DWORD dwPropId,
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DWORD dwFlags, const void *pvData)
{
BOOL ret;
TRACE("(%p, %d, %08x, %p)\n", crl, dwPropId, dwFlags, pvData);
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if (!crl->base.properties)
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ret = FALSE;
else if (!pvData)
{
ContextPropertyList_RemoveProperty(crl->base.properties, dwPropId);
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ret = TRUE;
}
else
{
switch (dwPropId)
{
case CERT_AUTO_ENROLL_PROP_ID:
case CERT_CTL_USAGE_PROP_ID: /* same as CERT_ENHKEY_USAGE_PROP_ID */
case CERT_DESCRIPTION_PROP_ID:
case CERT_FRIENDLY_NAME_PROP_ID:
case CERT_HASH_PROP_ID:
case CERT_KEY_IDENTIFIER_PROP_ID:
case CERT_MD5_HASH_PROP_ID:
case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
case CERT_PUBKEY_ALG_PARA_PROP_ID:
case CERT_PVK_FILE_PROP_ID:
case CERT_SIGNATURE_HASH_PROP_ID:
case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
case CERT_ENROLLMENT_PROP_ID:
case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
case CERT_RENEWAL_PROP_ID:
{
PCRYPT_DATA_BLOB blob = (PCRYPT_DATA_BLOB)pvData;
ret = ContextPropertyList_SetProperty(crl->base.properties, dwPropId,
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blob->pbData, blob->cbData);
break;
}
case CERT_DATE_STAMP_PROP_ID:
ret = ContextPropertyList_SetProperty(crl->base.properties, dwPropId,
pvData, sizeof(FILETIME));
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break;
default:
FIXME("%d: stub\n", dwPropId);
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ret = FALSE;
}
}
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CertSetCRLContextProperty(PCCRL_CONTEXT pCRLContext,
DWORD dwPropId, DWORD dwFlags, const void *pvData)
{
BOOL ret;
TRACE("(%p, %d, %08x, %p)\n", pCRLContext, dwPropId, dwFlags, pvData);
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/* Handle special cases for "read-only"/invalid prop IDs. Windows just
* crashes on most of these, I'll be safer.
*/
switch (dwPropId)
{
case 0:
case CERT_ACCESS_STATE_PROP_ID:
case CERT_CERT_PROP_ID:
case CERT_CRL_PROP_ID:
case CERT_CTL_PROP_ID:
SetLastError(E_INVALIDARG);
return FALSE;
}
ret = CRLContext_SetProperty(crl_from_ptr(pCRLContext), dwPropId, dwFlags, pvData);
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TRACE("returning %d\n", ret);
return ret;
}
static BOOL compare_dist_point_name(const CRL_DIST_POINT_NAME *name1,
const CRL_DIST_POINT_NAME *name2)
{
BOOL match;
if (name1->dwDistPointNameChoice == name2->dwDistPointNameChoice)
{
match = TRUE;
if (name1->dwDistPointNameChoice == CRL_DIST_POINT_FULL_NAME)
{
if (name1->u.FullName.cAltEntry == name2->u.FullName.cAltEntry)
{
DWORD i;
for (i = 0; match && i < name1->u.FullName.cAltEntry; i++)
{
const CERT_ALT_NAME_ENTRY *entry1 =
&name1->u.FullName.rgAltEntry[i];
const CERT_ALT_NAME_ENTRY *entry2 =
&name2->u.FullName.rgAltEntry[i];
if (entry1->dwAltNameChoice == entry2->dwAltNameChoice)
{
switch (entry1->dwAltNameChoice)
{
case CERT_ALT_NAME_URL:
match = !wcsicmp(entry1->u.pwszURL,
entry2->u.pwszURL);
break;
case CERT_ALT_NAME_DIRECTORY_NAME:
match = (entry1->u.DirectoryName.cbData ==
entry2->u.DirectoryName.cbData) &&
!memcmp(entry1->u.DirectoryName.pbData,
entry2->u.DirectoryName.pbData,
entry1->u.DirectoryName.cbData);
break;
default:
FIXME("unimplemented for type %d\n",
entry1->dwAltNameChoice);
match = FALSE;
}
}
else
match = FALSE;
}
}
else
match = FALSE;
}
}
else
match = FALSE;
return match;
}
static BOOL match_dist_point_with_issuing_dist_point(
const CRL_DIST_POINT *distPoint, const CRL_ISSUING_DIST_POINT *idp)
{
BOOL match;
/* While RFC 5280, section 4.2.1.13 recommends against segmenting
* CRL distribution points by reasons, it doesn't preclude doing so.
* "This profile RECOMMENDS against segmenting CRLs by reason code."
* If the issuing distribution point for this CRL is only valid for
* some reasons, only match if the reasons covered also match the
* reasons in the CRL distribution point.
*/
if (idp->OnlySomeReasonFlags.cbData)
{
if (idp->OnlySomeReasonFlags.cbData == distPoint->ReasonFlags.cbData)
{
DWORD i;
match = TRUE;
for (i = 0; match && i < distPoint->ReasonFlags.cbData; i++)
if (idp->OnlySomeReasonFlags.pbData[i] !=
distPoint->ReasonFlags.pbData[i])
match = FALSE;
}
else
match = FALSE;
}
else
match = TRUE;
if (match)
match = compare_dist_point_name(&idp->DistPointName,
&distPoint->DistPointName);
return match;
}
BOOL WINAPI CertIsValidCRLForCertificate(PCCERT_CONTEXT pCert,
PCCRL_CONTEXT pCrl, DWORD dwFlags, void *pvReserved)
{
PCERT_EXTENSION ext;
BOOL ret;
TRACE("(%p, %p, %08x, %p)\n", pCert, pCrl, dwFlags, pvReserved);
if (!pCert)
return TRUE;
if ((ext = CertFindExtension(szOID_ISSUING_DIST_POINT,
pCrl->pCrlInfo->cExtension, pCrl->pCrlInfo->rgExtension)))
{
CRL_ISSUING_DIST_POINT *idp;
DWORD size;
if ((ret = CryptDecodeObjectEx(pCrl->dwCertEncodingType,
X509_ISSUING_DIST_POINT, ext->Value.pbData, ext->Value.cbData,
CRYPT_DECODE_ALLOC_FLAG, NULL, &idp, &size)))
{
if ((ext = CertFindExtension(szOID_CRL_DIST_POINTS,
pCert->pCertInfo->cExtension, pCert->pCertInfo->rgExtension)))
{
CRL_DIST_POINTS_INFO *distPoints;
if ((ret = CryptDecodeObjectEx(pCert->dwCertEncodingType,
X509_CRL_DIST_POINTS, ext->Value.pbData, ext->Value.cbData,
CRYPT_DECODE_ALLOC_FLAG, NULL, &distPoints, &size)))
{
DWORD i;
ret = FALSE;
for (i = 0; !ret && i < distPoints->cDistPoint; i++)
ret = match_dist_point_with_issuing_dist_point(
&distPoints->rgDistPoint[i], idp);
if (!ret)
SetLastError(CRYPT_E_NO_MATCH);
LocalFree(distPoints);
}
}
else
{
/* no CRL dist points extension in cert, can't match the CRL
* (which has an issuing dist point extension)
*/
ret = FALSE;
SetLastError(CRYPT_E_NO_MATCH);
}
LocalFree(idp);
}
}
else
ret = TRUE;
return ret;
}
2007-04-09 21:28:22 +02:00
static PCRL_ENTRY CRYPT_FindCertificateInCRL(PCERT_INFO cert, const CRL_INFO *crl)
{
DWORD i;
PCRL_ENTRY entry = NULL;
for (i = 0; !entry && i < crl->cCRLEntry; i++)
if (CertCompareIntegerBlob(&crl->rgCRLEntry[i].SerialNumber,
&cert->SerialNumber))
entry = &crl->rgCRLEntry[i];
return entry;
}
BOOL WINAPI CertFindCertificateInCRL(PCCERT_CONTEXT pCert,
PCCRL_CONTEXT pCrlContext, DWORD dwFlags, void *pvReserved,
PCRL_ENTRY *ppCrlEntry)
{
TRACE("(%p, %p, %08x, %p, %p)\n", pCert, pCrlContext, dwFlags, pvReserved,
ppCrlEntry);
*ppCrlEntry = CRYPT_FindCertificateInCRL(pCert->pCertInfo,
pCrlContext->pCrlInfo);
return TRUE;
}
BOOL WINAPI CertVerifyCRLRevocation(DWORD dwCertEncodingType,
PCERT_INFO pCertId, DWORD cCrlInfo, PCRL_INFO rgpCrlInfo[])
{
DWORD i;
PCRL_ENTRY entry = NULL;
TRACE("(%08x, %p, %d, %p)\n", dwCertEncodingType, pCertId, cCrlInfo,
rgpCrlInfo);
for (i = 0; !entry && i < cCrlInfo; i++)
entry = CRYPT_FindCertificateInCRL(pCertId, rgpCrlInfo[i]);
return entry == NULL;
}
LONG WINAPI CertVerifyCRLTimeValidity(LPFILETIME pTimeToVerify,
PCRL_INFO pCrlInfo)
{
FILETIME fileTime;
LONG ret;
if (!pTimeToVerify)
{
GetSystemTimeAsFileTime(&fileTime);
pTimeToVerify = &fileTime;
}
if ((ret = CompareFileTime(pTimeToVerify, &pCrlInfo->ThisUpdate)) >= 0)
{
ret = CompareFileTime(pTimeToVerify, &pCrlInfo->NextUpdate);
if (ret < 0)
ret = 0;
}
return ret;
}