516 lines
18 KiB
C
516 lines
18 KiB
C
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/*
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* Copyright 2004-2006 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "wine/debug.h"
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#include "excpt.h"
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#include "wine/exception.h"
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#include "crypt32_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(crypt);
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/* Some typedefs that make it easier to abstract which type of context we're
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* working with.
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*/
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typedef const void *(WINAPI *CreateContextFunc)(DWORD dwCertEncodingType,
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const BYTE *pbCertEncoded, DWORD cbCertEncoded);
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typedef BOOL (WINAPI *AddContextToStoreFunc)(HCERTSTORE hCertStore,
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const void *context, DWORD dwAddDisposition, const void **ppStoreContext);
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typedef BOOL (WINAPI *AddEncodedContextToStoreFunc)(HCERTSTORE hCertStore,
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DWORD dwCertEncodingType, const BYTE *pbEncoded, DWORD cbEncoded,
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DWORD dwAddDisposition, const void **ppContext);
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typedef const void *(WINAPI *EnumContextsInStoreFunc)(HCERTSTORE hCertStore,
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const void *pPrevContext);
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typedef BOOL (WINAPI *GetContextPropertyFunc)(const void *context,
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DWORD dwPropID, void *pvData, DWORD *pcbData);
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typedef BOOL (WINAPI *SetContextPropertyFunc)(const void *context,
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DWORD dwPropID, DWORD dwFlags, const void *pvData);
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typedef BOOL (WINAPI *SerializeElementFunc)(const void *context, DWORD dwFlags,
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BYTE *pbElement, DWORD *pcbElement);
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typedef BOOL (WINAPI *FreeContextFunc)(const void *context);
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typedef BOOL (WINAPI *DeleteContextFunc)(const void *context);
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/* An abstract context (certificate, CRL, or CTL) interface */
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typedef struct _WINE_CONTEXT_INTERFACE
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{
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CreateContextFunc create;
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AddContextToStoreFunc addContextToStore;
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AddEncodedContextToStoreFunc addEncodedToStore;
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EnumContextsInStoreFunc enumContextsInStore;
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GetContextPropertyFunc getProp;
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SetContextPropertyFunc setProp;
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SerializeElementFunc serialize;
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FreeContextFunc free;
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DeleteContextFunc deleteFromStore;
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} WINE_CONTEXT_INTERFACE, *PWINE_CONTEXT_INTERFACE;
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static const WINE_CONTEXT_INTERFACE gCertInterface = {
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(CreateContextFunc)CertCreateCertificateContext,
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(AddContextToStoreFunc)CertAddCertificateContextToStore,
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(AddEncodedContextToStoreFunc)CertAddEncodedCertificateToStore,
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(EnumContextsInStoreFunc)CertEnumCertificatesInStore,
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(GetContextPropertyFunc)CertGetCertificateContextProperty,
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(SetContextPropertyFunc)CertSetCertificateContextProperty,
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(SerializeElementFunc)CertSerializeCertificateStoreElement,
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(FreeContextFunc)CertFreeCertificateContext,
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(DeleteContextFunc)CertDeleteCertificateFromStore,
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};
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static const WINE_CONTEXT_INTERFACE gCRLInterface = {
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(CreateContextFunc)CertCreateCRLContext,
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(AddContextToStoreFunc)CertAddCRLContextToStore,
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(AddEncodedContextToStoreFunc)CertAddEncodedCRLToStore,
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(EnumContextsInStoreFunc)CertEnumCRLsInStore,
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(GetContextPropertyFunc)CertGetCRLContextProperty,
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(SetContextPropertyFunc)CertSetCRLContextProperty,
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(SerializeElementFunc)CertSerializeCRLStoreElement,
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(FreeContextFunc)CertFreeCRLContext,
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(DeleteContextFunc)CertDeleteCRLFromStore,
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};
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static const WINE_CONTEXT_INTERFACE gCTLInterface = {
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(CreateContextFunc)CertCreateCTLContext,
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(AddContextToStoreFunc)CertAddCTLContextToStore,
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(AddEncodedContextToStoreFunc)CertAddEncodedCTLToStore,
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(EnumContextsInStoreFunc)CertEnumCTLsInStore,
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(GetContextPropertyFunc)CertGetCTLContextProperty,
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(SetContextPropertyFunc)CertSetCTLContextProperty,
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(SerializeElementFunc)CertSerializeCTLStoreElement,
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(FreeContextFunc)CertFreeCTLContext,
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(DeleteContextFunc)CertDeleteCTLFromStore,
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};
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/* An extended certificate property in serialized form is prefixed by this
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* header.
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*/
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typedef struct _WINE_CERT_PROP_HEADER
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{
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DWORD propID;
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DWORD unknown; /* always 1 */
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DWORD cb;
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} WINE_CERT_PROP_HEADER, *PWINE_CERT_PROP_HEADER;
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BOOL WINAPI CertSerializeCRLStoreElement(PCCRL_CONTEXT pCrlContext,
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DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
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{
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FIXME("(%p, %08lx, %p, %p): stub\n", pCrlContext, dwFlags, pbElement,
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pcbElement);
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return FALSE;
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}
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BOOL WINAPI CertSerializeCTLStoreElement(PCCTL_CONTEXT pCtlContext,
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DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
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{
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FIXME("(%p, %08lx, %p, %p): stub\n", pCtlContext, dwFlags, pbElement,
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pcbElement);
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return FALSE;
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}
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BOOL WINAPI CertSerializeCertificateStoreElement(PCCERT_CONTEXT pCertContext,
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DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
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{
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BOOL ret;
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TRACE("(%p, %08lx, %p, %p)\n", pCertContext, dwFlags, pbElement,
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pcbElement);
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if (pCertContext)
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{
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DWORD bytesNeeded = sizeof(WINE_CERT_PROP_HEADER) +
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pCertContext->cbCertEncoded;
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DWORD prop = 0;
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ret = TRUE;
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do {
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prop = CertEnumCertificateContextProperties(pCertContext, prop);
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if (prop)
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{
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DWORD propSize = 0;
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ret = CertGetCertificateContextProperty(pCertContext,
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prop, NULL, &propSize);
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if (ret)
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bytesNeeded += sizeof(WINE_CERT_PROP_HEADER) + propSize;
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}
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} while (ret && prop != 0);
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if (!pbElement)
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{
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*pcbElement = bytesNeeded;
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ret = TRUE;
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}
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else if (*pcbElement < bytesNeeded)
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{
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*pcbElement = bytesNeeded;
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SetLastError(ERROR_MORE_DATA);
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ret = FALSE;
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}
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else
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{
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PWINE_CERT_PROP_HEADER hdr;
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DWORD bufSize = 0;
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LPBYTE buf = NULL;
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prop = 0;
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do {
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prop = CertEnumCertificateContextProperties(pCertContext, prop);
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if (prop)
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{
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DWORD propSize = 0;
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ret = CertGetCertificateContextProperty(pCertContext,
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prop, NULL, &propSize);
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if (ret)
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{
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if (bufSize < propSize)
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{
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if (buf)
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buf = CryptMemRealloc(buf, propSize);
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else
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buf = CryptMemAlloc(propSize);
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bufSize = propSize;
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}
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if (buf)
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{
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ret = CertGetCertificateContextProperty(
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pCertContext, prop, buf, &propSize);
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if (ret)
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{
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hdr = (PWINE_CERT_PROP_HEADER)pbElement;
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hdr->propID = prop;
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hdr->unknown = 1;
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hdr->cb = propSize;
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pbElement += sizeof(WINE_CERT_PROP_HEADER);
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if (propSize)
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{
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memcpy(pbElement, buf, propSize);
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pbElement += propSize;
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}
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}
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}
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else
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ret = FALSE;
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}
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}
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} while (ret && prop != 0);
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CryptMemFree(buf);
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hdr = (PWINE_CERT_PROP_HEADER)pbElement;
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hdr->propID = CERT_CERT_PROP_ID;
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hdr->unknown = 1;
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hdr->cb = pCertContext->cbCertEncoded;
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memcpy(pbElement + sizeof(WINE_CERT_PROP_HEADER),
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pCertContext->pbCertEncoded, pCertContext->cbCertEncoded);
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}
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}
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else
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ret = FALSE;
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return ret;
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}
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/* Looks for the property with ID propID in the buffer buf. Returns a pointer
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* to its header if a valid header is found, NULL if not. Valid means the
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* length of thte property won't overrun buf, and the unknown field is 1.
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*/
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static const WINE_CERT_PROP_HEADER *CRYPT_findPropID(const BYTE *buf,
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DWORD size, DWORD propID)
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{
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const WINE_CERT_PROP_HEADER *ret = NULL;
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BOOL done = FALSE;
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while (size && !ret && !done)
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{
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if (size < sizeof(WINE_CERT_PROP_HEADER))
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{
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SetLastError(CRYPT_E_FILE_ERROR);
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done = TRUE;
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}
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else
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{
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const WINE_CERT_PROP_HEADER *hdr =
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(const WINE_CERT_PROP_HEADER *)buf;
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size -= sizeof(WINE_CERT_PROP_HEADER);
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buf += sizeof(WINE_CERT_PROP_HEADER);
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if (size < hdr->cb)
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{
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SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
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done = TRUE;
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}
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else if (!hdr->propID)
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{
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/* assume a zero prop ID means the data are uninitialized, so
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* stop looking.
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*/
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done = TRUE;
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}
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else if (hdr->unknown != 1)
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{
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SetLastError(ERROR_FILE_NOT_FOUND);
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done = TRUE;
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}
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else if (hdr->propID == propID)
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ret = hdr;
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else
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{
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buf += hdr->cb;
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size -= hdr->cb;
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}
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}
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}
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return ret;
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}
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const void *CRYPT_ReadSerializedElement(const BYTE *pbElement, DWORD cbElement,
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DWORD dwContextTypeFlags, DWORD *pdwContentType)
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{
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const void *context;
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TRACE("(%p, %ld, %08lx, %p)\n", pbElement, cbElement, dwContextTypeFlags,
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pdwContentType);
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if (!cbElement)
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{
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SetLastError(ERROR_END_OF_MEDIA);
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return NULL;
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}
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__TRY
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{
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const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
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const WINE_CERT_PROP_HEADER *hdr = NULL;
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DWORD type = 0;
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BOOL ret;
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ret = TRUE;
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context = NULL;
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if (dwContextTypeFlags == CERT_STORE_ALL_CONTEXT_FLAG)
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{
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hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CERT_PROP_ID);
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if (hdr)
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type = CERT_STORE_CERTIFICATE_CONTEXT;
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else
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{
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hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CRL_PROP_ID);
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if (hdr)
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type = CERT_STORE_CRL_CONTEXT;
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else
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{
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hdr = CRYPT_findPropID(pbElement, cbElement,
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CERT_CTL_PROP_ID);
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if (hdr)
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type = CERT_STORE_CTL_CONTEXT;
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}
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}
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}
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else if (dwContextTypeFlags & CERT_STORE_CERTIFICATE_CONTEXT_FLAG)
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{
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hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CERT_PROP_ID);
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type = CERT_STORE_CERTIFICATE_CONTEXT;
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}
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else if (dwContextTypeFlags & CERT_STORE_CRL_CONTEXT_FLAG)
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{
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hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CRL_PROP_ID);
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type = CERT_STORE_CRL_CONTEXT;
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}
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else if (dwContextTypeFlags & CERT_STORE_CTL_CONTEXT_FLAG)
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{
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hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CTL_PROP_ID);
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type = CERT_STORE_CTL_CONTEXT;
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}
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switch (type)
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{
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case CERT_STORE_CERTIFICATE_CONTEXT:
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contextInterface = &gCertInterface;
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break;
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case CERT_STORE_CRL_CONTEXT:
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contextInterface = &gCRLInterface;
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break;
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case CERT_STORE_CTL_CONTEXT:
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contextInterface = &gCTLInterface;
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break;
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default:
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SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
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ret = FALSE;
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}
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if (!hdr)
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ret = FALSE;
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if (ret)
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context = contextInterface->create(X509_ASN_ENCODING,
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(BYTE *)hdr + sizeof(WINE_CERT_PROP_HEADER), hdr->cb);
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if (ret && context)
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{
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BOOL noMoreProps = FALSE;
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while (!noMoreProps && ret)
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{
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if (cbElement < sizeof(WINE_CERT_PROP_HEADER))
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ret = FALSE;
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else
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{
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const WINE_CERT_PROP_HEADER *hdr =
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(const WINE_CERT_PROP_HEADER *)pbElement;
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TRACE("prop is %ld\n", hdr->propID);
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|
cbElement -= sizeof(WINE_CERT_PROP_HEADER);
|
||
|
|
pbElement += sizeof(WINE_CERT_PROP_HEADER);
|
||
|
|
if (cbElement < hdr->cb)
|
||
|
|
{
|
||
|
|
SetLastError(HRESULT_FROM_WIN32(
|
||
|
|
ERROR_INVALID_PARAMETER));
|
||
|
|
ret = FALSE;
|
||
|
|
}
|
||
|
|
else if (!hdr->propID)
|
||
|
|
{
|
||
|
|
/* Like in CRYPT_findPropID, stop if the propID is zero
|
||
|
|
*/
|
||
|
|
noMoreProps = TRUE;
|
||
|
|
}
|
||
|
|
else if (hdr->unknown != 1)
|
||
|
|
{
|
||
|
|
SetLastError(ERROR_FILE_NOT_FOUND);
|
||
|
|
ret = FALSE;
|
||
|
|
}
|
||
|
|
else if (hdr->propID != CERT_CERT_PROP_ID &&
|
||
|
|
hdr->propID != CERT_CRL_PROP_ID && hdr->propID !=
|
||
|
|
CERT_CTL_PROP_ID)
|
||
|
|
{
|
||
|
|
/* Have to create a blob for most types, but not
|
||
|
|
* for all.. arghh.
|
||
|
|
*/
|
||
|
|
switch (hdr->propID)
|
||
|
|
{
|
||
|
|
case CERT_AUTO_ENROLL_PROP_ID:
|
||
|
|
case CERT_CTL_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_PUBLIC_KEY_MD5_HASH_PROP_ID:
|
||
|
|
case CERT_ENROLLMENT_PROP_ID:
|
||
|
|
case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
|
||
|
|
case CERT_RENEWAL_PROP_ID:
|
||
|
|
{
|
||
|
|
CRYPT_DATA_BLOB blob = { hdr->cb,
|
||
|
|
(LPBYTE)pbElement };
|
||
|
|
|
||
|
|
ret = contextInterface->setProp(context,
|
||
|
|
hdr->propID, 0, &blob);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case CERT_DATE_STAMP_PROP_ID:
|
||
|
|
ret = contextInterface->setProp(context,
|
||
|
|
hdr->propID, 0, pbElement);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
FIXME("prop ID %ld: stub\n", hdr->propID);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pbElement += hdr->cb;
|
||
|
|
cbElement -= hdr->cb;
|
||
|
|
if (!cbElement)
|
||
|
|
noMoreProps = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (ret)
|
||
|
|
{
|
||
|
|
if (pdwContentType)
|
||
|
|
*pdwContentType = type;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
contextInterface->free(context);
|
||
|
|
context = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
__EXCEPT_PAGE_FAULT
|
||
|
|
{
|
||
|
|
SetLastError(STATUS_ACCESS_VIOLATION);
|
||
|
|
context = NULL;
|
||
|
|
}
|
||
|
|
__ENDTRY
|
||
|
|
return context;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL WINAPI CertAddSerializedElementToStore(HCERTSTORE hCertStore,
|
||
|
|
const BYTE *pbElement, DWORD cbElement, DWORD dwAddDisposition, DWORD dwFlags,
|
||
|
|
DWORD dwContextTypeFlags, DWORD *pdwContentType, const void **ppvContext)
|
||
|
|
{
|
||
|
|
const void *context;
|
||
|
|
DWORD type;
|
||
|
|
BOOL ret;
|
||
|
|
|
||
|
|
TRACE("(%p, %p, %ld, %08lx, %08lx, %08lx, %p, %p)\n", hCertStore,
|
||
|
|
pbElement, cbElement, dwAddDisposition, dwFlags, dwContextTypeFlags,
|
||
|
|
pdwContentType, ppvContext);
|
||
|
|
|
||
|
|
/* Call the internal function, then delete the hashes. Tests show this
|
||
|
|
* function uses real hash values, not whatever's stored in the hash
|
||
|
|
* property.
|
||
|
|
*/
|
||
|
|
context = CRYPT_ReadSerializedElement(pbElement, cbElement,
|
||
|
|
dwContextTypeFlags, &type);
|
||
|
|
if (context)
|
||
|
|
{
|
||
|
|
const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
|
||
|
|
|
||
|
|
switch (type)
|
||
|
|
{
|
||
|
|
case CERT_STORE_CERTIFICATE_CONTEXT:
|
||
|
|
contextInterface = &gCertInterface;
|
||
|
|
break;
|
||
|
|
case CERT_STORE_CRL_CONTEXT:
|
||
|
|
contextInterface = &gCRLInterface;
|
||
|
|
break;
|
||
|
|
case CERT_STORE_CTL_CONTEXT:
|
||
|
|
contextInterface = &gCTLInterface;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
|
||
|
|
}
|
||
|
|
if (contextInterface)
|
||
|
|
{
|
||
|
|
contextInterface->setProp(context, CERT_HASH_PROP_ID, 0, NULL);
|
||
|
|
contextInterface->setProp(context, CERT_MD5_HASH_PROP_ID, 0, NULL);
|
||
|
|
contextInterface->setProp(context, CERT_SIGNATURE_HASH_PROP_ID, 0,
|
||
|
|
NULL);
|
||
|
|
if (pdwContentType)
|
||
|
|
*pdwContentType = type;
|
||
|
|
ret = contextInterface->addContextToStore(hCertStore, context,
|
||
|
|
dwAddDisposition, ppvContext);
|
||
|
|
contextInterface->free(context);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
ret = FALSE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
ret = FALSE;
|
||
|
|
return ret;
|
||
|
|
}
|