git.oblomov.eu Git - wine/blob - dlls/crypt32/serialize.c

   1 /*
   2  * Copyright 2004-2007 Juan Lang
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20 #include "wine/port.h"
  21
  22 #include <stdarg.h>
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wincrypt.h"
  26 #include "wine/debug.h"
  27 #include "wine/exception.h"
  28 #include "crypt32_private.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  31
  32 /* An extended certificate property in serialized form is prefixed by this
  33  * header.
  34  */
  35 typedef struct _WINE_CERT_PROP_HEADER
  36 {
  37     DWORD propID;
  38     DWORD unknown; /* always 1 */
  39     DWORD cb;
  40 } WINE_CERT_PROP_HEADER, *PWINE_CERT_PROP_HEADER;
  41
  42 static BOOL CRYPT_SerializeStoreElement(const void *context,
  43  const BYTE *encodedContext, DWORD cbEncodedContext, DWORD contextPropID,
  44  PCWINE_CONTEXT_INTERFACE contextInterface, DWORD dwFlags, BOOL omitHashes,
  45  BYTE *pbElement, DWORD *pcbElement)
  46 {
  47     BOOL ret;
  48
  49     TRACE("(%p, %p, %08x, %d, %p, %p)\n", context, contextInterface, dwFlags,
  50      omitHashes, pbElement, pcbElement);
  51
  52     if (context)
  53     {
  54         DWORD bytesNeeded = sizeof(WINE_CERT_PROP_HEADER) + cbEncodedContext;
  55         DWORD prop = 0;
  56
  57         ret = TRUE;
  58         do {
  59             prop = contextInterface->enumProps(context, prop);
  60             if (prop && (!omitHashes || !IS_CERT_HASH_PROP_ID(prop)))
  61             {
  62                 DWORD propSize = 0;
  63
  64                 ret = contextInterface->getProp(context, prop, NULL, &propSize);
  65                 if (ret)
  66                     bytesNeeded += sizeof(WINE_CERT_PROP_HEADER) + propSize;
  67             }
  68         } while (ret && prop != 0);
  69
  70         if (!pbElement)
  71         {
  72             *pcbElement = bytesNeeded;
  73             ret = TRUE;
  74         }
  75         else if (*pcbElement < bytesNeeded)
  76         {
  77             *pcbElement = bytesNeeded;
  78             SetLastError(ERROR_MORE_DATA);
  79             ret = FALSE;
  80         }
  81         else
  82         {
  83             PWINE_CERT_PROP_HEADER hdr;
  84             DWORD bufSize = 0;
  85             LPBYTE buf = NULL;
  86
  87             prop = 0;
  88             do {
  89                 prop = contextInterface->enumProps(context, prop);
  90                 if (prop && (!omitHashes || !IS_CERT_HASH_PROP_ID(prop)))
  91                 {
  92                     DWORD propSize = 0;
  93
  94                     ret = contextInterface->getProp(context, prop, NULL,
  95                      &propSize);
  96                     if (ret)
  97                     {
  98                         if (bufSize < propSize)
  99                         {
 100                             if (buf)
 101                                 buf = CryptMemRealloc(buf, propSize);
 102                             else
 103                                 buf = CryptMemAlloc(propSize);
 104                             bufSize = propSize;
 105                         }
 106                         if (buf)
 107                         {
 108                             ret = contextInterface->getProp(context, prop, buf,
 109                              &propSize);
 110                             if (ret)
 111                             {
 112                                 hdr = (PWINE_CERT_PROP_HEADER)pbElement;
 113                                 hdr->propID = prop;
 114                                 hdr->unknown = 1;
 115                                 hdr->cb = propSize;
 116                                 pbElement += sizeof(WINE_CERT_PROP_HEADER);
 117                                 if (propSize)
 118                                 {
 119                                     memcpy(pbElement, buf, propSize);
 120                                     pbElement += propSize;
 121                                 }
 122                             }
 123                         }
 124                         else
 125                             ret = FALSE;
 126                     }
 127                 }
 128             } while (ret && prop != 0);
 129             CryptMemFree(buf);
 130
 131             hdr = (PWINE_CERT_PROP_HEADER)pbElement;
 132             hdr->propID = contextPropID;
 133             hdr->unknown = 1;
 134             hdr->cb = cbEncodedContext;
 135             memcpy(pbElement + sizeof(WINE_CERT_PROP_HEADER),
 136              encodedContext, cbEncodedContext);
 137         }
 138     }
 139     else
 140         ret = FALSE;
 141     return ret;
 142 }
 143
 144 BOOL WINAPI CertSerializeCertificateStoreElement(PCCERT_CONTEXT pCertContext,
 145  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 146 {
 147     return CRYPT_SerializeStoreElement(pCertContext,
 148      pCertContext->pbCertEncoded, pCertContext->cbCertEncoded,
 149      CERT_CERT_PROP_ID, pCertInterface, dwFlags, FALSE, pbElement, pcbElement);
 150 }
 151
 152 BOOL WINAPI CertSerializeCRLStoreElement(PCCRL_CONTEXT pCrlContext,
 153  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 154 {
 155     return CRYPT_SerializeStoreElement(pCrlContext,
 156      pCrlContext->pbCrlEncoded, pCrlContext->cbCrlEncoded,
 157      CERT_CRL_PROP_ID, pCRLInterface, dwFlags, FALSE, pbElement, pcbElement);
 158 }
 159
 160 BOOL WINAPI CertSerializeCTLStoreElement(PCCTL_CONTEXT pCtlContext,
 161  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 162 {
 163     return CRYPT_SerializeStoreElement(pCtlContext,
 164      pCtlContext->pbCtlEncoded, pCtlContext->cbCtlEncoded,
 165      CERT_CTL_PROP_ID, pCTLInterface, dwFlags, FALSE, pbElement, pcbElement);
 166 }
 167
 168 /* Looks for the property with ID propID in the buffer buf.  Returns a pointer
 169  * to its header if a valid header is found, NULL if not.  Valid means the
 170  * length of thte property won't overrun buf, and the unknown field is 1.
 171  */
 172 static const WINE_CERT_PROP_HEADER *CRYPT_findPropID(const BYTE *buf,
 173  DWORD size, DWORD propID)
 174 {
 175     const WINE_CERT_PROP_HEADER *ret = NULL;
 176     BOOL done = FALSE;
 177
 178     while (size && !ret && !done)
 179     {
 180         if (size < sizeof(WINE_CERT_PROP_HEADER))
 181         {
 182             SetLastError(CRYPT_E_FILE_ERROR);
 183             done = TRUE;
 184         }
 185         else
 186         {
 187             const WINE_CERT_PROP_HEADER *hdr =
 188              (const WINE_CERT_PROP_HEADER *)buf;
 189
 190             size -= sizeof(WINE_CERT_PROP_HEADER);
 191             buf += sizeof(WINE_CERT_PROP_HEADER);
 192             if (size < hdr->cb)
 193             {
 194                 SetLastError(E_INVALIDARG);
 195                 done = TRUE;
 196             }
 197             else if (!hdr->propID)
 198             {
 199                 /* assume a zero prop ID means the data are uninitialized, so
 200                  * stop looking.
 201                  */
 202                 done = TRUE;
 203             }
 204             else if (hdr->unknown != 1)
 205             {
 206                 SetLastError(ERROR_FILE_NOT_FOUND);
 207                 done = TRUE;
 208             }
 209             else if (hdr->propID == propID)
 210                 ret = hdr;
 211             else
 212             {
 213                 buf += hdr->cb;
 214                 size -= hdr->cb;
 215             }
 216         }
 217     }
 218     return ret;
 219 }
 220
 221 static BOOL CRYPT_ReadContextProp(
 222  const WINE_CONTEXT_INTERFACE *contextInterface, const void *context,
 223  const WINE_CERT_PROP_HEADER *hdr, const BYTE *pbElement, DWORD cbElement)
 224 {
 225     BOOL ret;
 226
 227     if (cbElement < hdr->cb)
 228     {
 229         SetLastError(E_INVALIDARG);
 230         ret = FALSE;
 231     }
 232     else if (hdr->unknown != 1)
 233     {
 234         SetLastError(ERROR_FILE_NOT_FOUND);
 235         ret = FALSE;
 236     }
 237     else if (hdr->propID != CERT_CERT_PROP_ID &&
 238      hdr->propID != CERT_CRL_PROP_ID && hdr->propID != CERT_CTL_PROP_ID)
 239     {
 240         /* Have to create a blob for most types, but not
 241          * for all.. arghh.
 242          */
 243         switch (hdr->propID)
 244         {
 245         case CERT_AUTO_ENROLL_PROP_ID:
 246         case CERT_CTL_USAGE_PROP_ID:
 247         case CERT_DESCRIPTION_PROP_ID:
 248         case CERT_FRIENDLY_NAME_PROP_ID:
 249         case CERT_HASH_PROP_ID:
 250         case CERT_KEY_IDENTIFIER_PROP_ID:
 251         case CERT_MD5_HASH_PROP_ID:
 252         case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
 253         case CERT_PUBKEY_ALG_PARA_PROP_ID:
 254         case CERT_PVK_FILE_PROP_ID:
 255         case CERT_SIGNATURE_HASH_PROP_ID:
 256         case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
 257         case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
 258         case CERT_ENROLLMENT_PROP_ID:
 259         case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
 260         case CERT_RENEWAL_PROP_ID:
 261         {
 262             CRYPT_DATA_BLOB blob = { hdr->cb,
 263              (LPBYTE)pbElement };
 264
 265             ret = contextInterface->setProp(context,
 266              hdr->propID, 0, &blob);
 267             break;
 268         }
 269         case CERT_DATE_STAMP_PROP_ID:
 270             ret = contextInterface->setProp(context,
 271              hdr->propID, 0, pbElement);
 272             break;
 273         case CERT_KEY_PROV_INFO_PROP_ID:
 274         {
 275             PCRYPT_KEY_PROV_INFO info =
 276              (PCRYPT_KEY_PROV_INFO)pbElement;
 277
 278             CRYPT_FixKeyProvInfoPointers(info);
 279             ret = contextInterface->setProp(context,
 280              hdr->propID, 0, pbElement);
 281             break;
 282         }
 283         default:
 284             ret = FALSE;
 285         }
 286     }
 287     else
 288     {
 289         /* ignore the context itself */
 290         ret = TRUE;
 291     }
 292     return ret;
 293 }
 294
 295 const void *CRYPT_ReadSerializedElement(const BYTE *pbElement, DWORD cbElement,
 296  DWORD dwContextTypeFlags, DWORD *pdwContentType)
 297 {
 298     const void *context;
 299
 300     TRACE("(%p, %d, %08x, %p)\n", pbElement, cbElement, dwContextTypeFlags,
 301      pdwContentType);
 302
 303     if (!cbElement)
 304     {
 305         SetLastError(ERROR_END_OF_MEDIA);
 306         return NULL;
 307     }
 308
 309     __TRY
 310     {
 311         const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
 312         const WINE_CERT_PROP_HEADER *hdr = NULL;
 313         DWORD type = 0;
 314         BOOL ret;
 315
 316         ret = TRUE;
 317         context = NULL;
 318         if (dwContextTypeFlags == CERT_STORE_ALL_CONTEXT_FLAG)
 319         {
 320             hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CERT_PROP_ID);
 321             if (hdr)
 322                 type = CERT_STORE_CERTIFICATE_CONTEXT;
 323             else
 324             {
 325                 hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CRL_PROP_ID);
 326                 if (hdr)
 327                     type = CERT_STORE_CRL_CONTEXT;
 328                 else
 329                 {
 330                     hdr = CRYPT_findPropID(pbElement, cbElement,
 331                      CERT_CTL_PROP_ID);
 332                     if (hdr)
 333                         type = CERT_STORE_CTL_CONTEXT;
 334                 }
 335             }
 336         }
 337         else if (dwContextTypeFlags & CERT_STORE_CERTIFICATE_CONTEXT_FLAG)
 338         {
 339             hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CERT_PROP_ID);
 340             type = CERT_STORE_CERTIFICATE_CONTEXT;
 341         }
 342         else if (dwContextTypeFlags & CERT_STORE_CRL_CONTEXT_FLAG)
 343         {
 344             hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CRL_PROP_ID);
 345             type = CERT_STORE_CRL_CONTEXT;
 346         }
 347         else if (dwContextTypeFlags & CERT_STORE_CTL_CONTEXT_FLAG)
 348         {
 349             hdr = CRYPT_findPropID(pbElement, cbElement, CERT_CTL_PROP_ID);
 350             type = CERT_STORE_CTL_CONTEXT;
 351         }
 352
 353         switch (type)
 354         {
 355         case CERT_STORE_CERTIFICATE_CONTEXT:
 356             contextInterface = pCertInterface;
 357             break;
 358         case CERT_STORE_CRL_CONTEXT:
 359             contextInterface = pCRLInterface;
 360             break;
 361         case CERT_STORE_CTL_CONTEXT:
 362             contextInterface = pCTLInterface;
 363             break;
 364         default:
 365             SetLastError(E_INVALIDARG);
 366             ret = FALSE;
 367         }
 368         if (!hdr)
 369             ret = FALSE;
 370
 371         if (ret)
 372             context = contextInterface->create(X509_ASN_ENCODING,
 373              (BYTE *)hdr + sizeof(WINE_CERT_PROP_HEADER), hdr->cb);
 374         if (ret && context)
 375         {
 376             BOOL noMoreProps = FALSE;
 377
 378             while (!noMoreProps && ret)
 379             {
 380                 if (cbElement < sizeof(WINE_CERT_PROP_HEADER))
 381                     ret = FALSE;
 382                 else
 383                 {
 384                     const WINE_CERT_PROP_HEADER *hdr =
 385                      (const WINE_CERT_PROP_HEADER *)pbElement;
 386
 387                     TRACE("prop is %d\n", hdr->propID);
 388                     cbElement -= sizeof(WINE_CERT_PROP_HEADER);
 389                     pbElement += sizeof(WINE_CERT_PROP_HEADER);
 390                     if (!hdr->propID)
 391                     {
 392                         /* Like in CRYPT_findPropID, stop if the propID is zero
 393                          */
 394                         noMoreProps = TRUE;
 395                     }
 396                     else
 397                         ret = CRYPT_ReadContextProp(contextInterface, context,
 398                          hdr, pbElement, cbElement);
 399                     pbElement += hdr->cb;
 400                     cbElement -= hdr->cb;
 401                     if (!cbElement)
 402                         noMoreProps = TRUE;
 403                 }
 404             }
 405             if (ret)
 406             {
 407                 if (pdwContentType)
 408                     *pdwContentType = type;
 409             }
 410             else
 411             {
 412                 contextInterface->free(context);
 413                 context = NULL;
 414             }
 415         }
 416     }
 417     __EXCEPT_PAGE_FAULT
 418     {
 419         SetLastError(STATUS_ACCESS_VIOLATION);
 420         context = NULL;
 421     }
 422     __ENDTRY
 423     return context;
 424 }
 425
 426 static const BYTE fileHeader[] = { 0, 0, 0, 0, 'C','E','R','T' };
 427
 428 BOOL CRYPT_ReadSerializedStoreFromFile(HANDLE file, HCERTSTORE store)
 429 {
 430     BYTE fileHeaderBuf[sizeof(fileHeader)];
 431     DWORD read;
 432     BOOL ret;
 433
 434     /* Failure reading is non-critical, we'll leave the store empty */
 435     ret = ReadFile(file, fileHeaderBuf, sizeof(fileHeaderBuf), &read, NULL);
 436     if (ret)
 437     {
 438         if (!read)
 439             ; /* an empty file is okay */
 440         else if (read != sizeof(fileHeaderBuf))
 441             ret = FALSE;
 442         else if (!memcmp(fileHeaderBuf, fileHeader, read))
 443         {
 444             WINE_CERT_PROP_HEADER propHdr;
 445             const void *context = NULL;
 446             const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
 447             LPBYTE buf = NULL;
 448             DWORD bufSize = 0;
 449
 450             do {
 451                 ret = ReadFile(file, &propHdr, sizeof(propHdr), &read, NULL);
 452                 if (ret && read == sizeof(propHdr))
 453                 {
 454                     if (contextInterface && context &&
 455                      (propHdr.propID == CERT_CERT_PROP_ID ||
 456                      propHdr.propID == CERT_CRL_PROP_ID ||
 457                      propHdr.propID == CERT_CTL_PROP_ID))
 458                     {
 459                         /* We have a new context, so free the existing one */
 460                         contextInterface->free(context);
 461                     }
 462                     if (propHdr.cb > bufSize)
 463                     {
 464                         /* Not reusing realloc, because the old data aren't
 465                          * needed any longer.
 466                          */
 467                         CryptMemFree(buf);
 468                         buf = CryptMemAlloc(propHdr.cb);
 469                         bufSize = propHdr.cb;
 470                     }
 471                     if (buf)
 472                     {
 473                         ret = ReadFile(file, buf, propHdr.cb, &read, NULL);
 474                         if (ret && read == propHdr.cb)
 475                         {
 476                             if (propHdr.propID == CERT_CERT_PROP_ID)
 477                             {
 478                                 contextInterface = pCertInterface;
 479                                 ret = contextInterface->addEncodedToStore(store,
 480                                  X509_ASN_ENCODING, buf, read,
 481                                  CERT_STORE_ADD_NEW, &context);
 482                             }
 483                             else if (propHdr.propID == CERT_CRL_PROP_ID)
 484                             {
 485                                 contextInterface = pCRLInterface;
 486                                 ret = contextInterface->addEncodedToStore(store,
 487                                  X509_ASN_ENCODING, buf, read,
 488                                  CERT_STORE_ADD_NEW, &context);
 489                             }
 490                             else if (propHdr.propID == CERT_CTL_PROP_ID)
 491                             {
 492                                 contextInterface = pCTLInterface;
 493                                 ret = contextInterface->addEncodedToStore(store,
 494                                  X509_ASN_ENCODING, buf, read,
 495                                  CERT_STORE_ADD_NEW, &context);
 496                             }
 497                             else
 498                                 ret = CRYPT_ReadContextProp(contextInterface,
 499                                  context, &propHdr, buf, read);
 500                         }
 501                     }
 502                     else
 503                         ret = FALSE;
 504                 }
 505             } while (ret && read > 0);
 506             if (contextInterface && context)
 507             {
 508                 /* Free the last context added */
 509                 contextInterface->free(context);
 510             }
 511             CryptMemFree(buf);
 512             ret = TRUE;
 513         }
 514         else
 515             ret = FALSE;
 516     }
 517     else
 518         ret = TRUE;
 519     return ret;
 520 }
 521
 522 static BOOL WINAPI CRYPT_SerializeCertNoHash(PCCERT_CONTEXT pCertContext,
 523  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 524 {
 525     return CRYPT_SerializeStoreElement(pCertContext,
 526      pCertContext->pbCertEncoded, pCertContext->cbCertEncoded,
 527      CERT_CERT_PROP_ID, pCertInterface, dwFlags, TRUE, pbElement, pcbElement);
 528 }
 529
 530 static BOOL WINAPI CRYPT_SerializeCRLNoHash(PCCRL_CONTEXT pCrlContext,
 531  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 532 {
 533     return CRYPT_SerializeStoreElement(pCrlContext,
 534      pCrlContext->pbCrlEncoded, pCrlContext->cbCrlEncoded,
 535      CERT_CRL_PROP_ID, pCRLInterface, dwFlags, TRUE, pbElement, pcbElement);
 536 }
 537
 538 static BOOL WINAPI CRYPT_SerializeCTLNoHash(PCCTL_CONTEXT pCtlContext,
 539  DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
 540 {
 541     return CRYPT_SerializeStoreElement(pCtlContext,
 542      pCtlContext->pbCtlEncoded, pCtlContext->cbCtlEncoded,
 543      CERT_CTL_PROP_ID, pCTLInterface, dwFlags, TRUE, pbElement, pcbElement);
 544 }
 545
 546 typedef BOOL (*SerializedOutputFunc)(void *handle, const void *buffer,
 547  DWORD size);
 548
 549 static BOOL CRYPT_SerializeContextsToStream(SerializedOutputFunc output,
 550  void *handle, const WINE_CONTEXT_INTERFACE *contextInterface, HCERTSTORE store)
 551 {
 552     const void *context = NULL;
 553     BOOL ret;
 554
 555     do {
 556         context = contextInterface->enumContextsInStore(store, context);
 557         if (context)
 558         {
 559             DWORD size = 0;
 560             LPBYTE buf = NULL;
 561
 562             ret = contextInterface->serialize(context, 0, NULL, &size);
 563             if (size)
 564                 buf = CryptMemAlloc(size);
 565             if (buf)
 566             {
 567                 ret = contextInterface->serialize(context, 0, buf, &size);
 568                 if (ret)
 569                     ret = output(handle, buf, size);
 570             }
 571             CryptMemFree(buf);
 572         }
 573         else
 574             ret = TRUE;
 575     } while (ret && context != NULL);
 576     if (context)
 577         contextInterface->free(context);
 578     return ret;
 579 }
 580
 581 static BOOL CRYPT_WriteSerializedStoreToStream(HCERTSTORE store,
 582  SerializedOutputFunc output, void *handle)
 583 {
 584     static const BYTE fileTrailer[12] = { 0 };
 585     WINE_CONTEXT_INTERFACE interface;
 586     BOOL ret;
 587
 588     ret = output(handle, fileHeader, sizeof(fileHeader));
 589     if (ret)
 590     {
 591         memcpy(&interface, pCertInterface, sizeof(interface));
 592         interface.serialize = (SerializeElementFunc)CRYPT_SerializeCertNoHash;
 593         ret = CRYPT_SerializeContextsToStream(output, handle, &interface,
 594          store);
 595     }
 596     if (ret)
 597     {
 598         memcpy(&interface, pCRLInterface, sizeof(interface));
 599         interface.serialize = (SerializeElementFunc)CRYPT_SerializeCRLNoHash;
 600         ret = CRYPT_SerializeContextsToStream(output, handle, &interface,
 601          store);
 602     }
 603     if (ret)
 604     {
 605         memcpy(&interface, pCTLInterface, sizeof(interface));
 606         interface.serialize = (SerializeElementFunc)CRYPT_SerializeCTLNoHash;
 607         ret = CRYPT_SerializeContextsToStream(output, handle, &interface,
 608          store);
 609     }
 610     if (ret)
 611         ret = output(handle, fileTrailer, sizeof(fileTrailer));
 612     return ret;
 613 }
 614
 615 static BOOL CRYPT_FileOutputFunc(void *handle, const void *buffer, DWORD size)
 616 {
 617     return WriteFile(handle, buffer, size, &size, NULL);
 618 }
 619
 620 static BOOL CRYPT_WriteSerializedStoreToFile(HANDLE file, HCERTSTORE store)
 621 {
 622     SetFilePointer(file, 0, NULL, FILE_BEGIN);
 623     return CRYPT_WriteSerializedStoreToStream(store, CRYPT_FileOutputFunc,
 624      file);
 625 }
 626
 627 static BOOL CRYPT_SavePKCSToMem(HCERTSTORE store,
 628  DWORD dwMsgAndCertEncodingType, void *handle)
 629 {
 630     CERT_BLOB *blob = (CERT_BLOB *)handle;
 631     CRYPT_SIGNED_INFO signedInfo = { 0 };
 632     PCCERT_CONTEXT cert = NULL;
 633     PCCRL_CONTEXT crl = NULL;
 634     DWORD size;
 635     BOOL ret = TRUE;
 636
 637     TRACE("(%d, %p)\n", blob->pbData ? blob->cbData : 0, blob->pbData);
 638
 639     do {
 640         cert = CertEnumCertificatesInStore(store, cert);
 641         if (cert)
 642             signedInfo.cCertEncoded++;
 643     } while (cert);
 644     if (signedInfo.cCertEncoded)
 645     {
 646         signedInfo.rgCertEncoded = CryptMemAlloc(
 647          signedInfo.cCertEncoded * sizeof(CERT_BLOB));
 648         if (!signedInfo.rgCertEncoded)
 649         {
 650             SetLastError(ERROR_OUTOFMEMORY);
 651             ret = FALSE;
 652         }
 653         else
 654         {
 655             DWORD i = 0;
 656
 657             do {
 658                 cert = CertEnumCertificatesInStore(store, cert);
 659                 if (cert)
 660                 {
 661                     signedInfo.rgCertEncoded[i].cbData = cert->cbCertEncoded;
 662                     signedInfo.rgCertEncoded[i].pbData = cert->pbCertEncoded;
 663                     i++;
 664                 }
 665             } while (cert);
 666         }
 667     }
 668
 669     do {
 670         crl = CertEnumCRLsInStore(store, crl);
 671         if (crl)
 672             signedInfo.cCrlEncoded++;
 673     } while (crl);
 674     if (signedInfo.cCrlEncoded)
 675     {
 676         signedInfo.rgCrlEncoded = CryptMemAlloc(
 677          signedInfo.cCrlEncoded * sizeof(CERT_BLOB));
 678         if (!signedInfo.rgCrlEncoded)
 679         {
 680             SetLastError(ERROR_OUTOFMEMORY);
 681             ret = FALSE;
 682         }
 683         else
 684         {
 685             DWORD i = 0;
 686
 687             do {
 688                 crl = CertEnumCRLsInStore(store, crl);
 689                 if (crl)
 690                 {
 691                     signedInfo.rgCrlEncoded[i].cbData = crl->cbCrlEncoded;
 692                     signedInfo.rgCrlEncoded[i].pbData = crl->pbCrlEncoded;
 693                     i++;
 694                 }
 695             } while (crl);
 696         }
 697     }
 698     if (ret)
 699     {
 700         ret = CRYPT_AsnEncodePKCSSignedInfo(&signedInfo, NULL, &size);
 701         if (ret)
 702         {
 703             if (!blob->pbData)
 704                 blob->cbData = size;
 705             else if (blob->cbData < size)
 706             {
 707                 blob->cbData = size;
 708                 SetLastError(ERROR_MORE_DATA);
 709                 ret = FALSE;
 710             }
 711             else
 712             {
 713                 blob->cbData = size;
 714                 ret = CRYPT_AsnEncodePKCSSignedInfo(&signedInfo, blob->pbData,
 715                  &blob->cbData);
 716             }
 717         }
 718     }
 719     CryptMemFree(signedInfo.rgCertEncoded);
 720     CryptMemFree(signedInfo.rgCrlEncoded);
 721     TRACE("returning %d\n", ret);
 722     return ret;
 723 }
 724
 725 static BOOL CRYPT_SavePKCSToFile(HCERTSTORE store,
 726  DWORD dwMsgAndCertEncodingType, void *handle)
 727 {
 728     CERT_BLOB blob = { 0, NULL };
 729     BOOL ret;
 730
 731     TRACE("(%p)\n", handle);
 732
 733     ret = CRYPT_SavePKCSToMem(store, dwMsgAndCertEncodingType, &blob);
 734     if (ret)
 735     {
 736         blob.pbData = CryptMemAlloc(blob.cbData);
 737         if (blob.pbData)
 738         {
 739             ret = CRYPT_SavePKCSToMem(store, dwMsgAndCertEncodingType, &blob);
 740             if (ret)
 741                 ret = WriteFile(handle, blob.pbData, blob.cbData,
 742                  &blob.cbData, NULL);
 743         }
 744         else
 745         {
 746             SetLastError(ERROR_OUTOFMEMORY);
 747             ret = FALSE;
 748         }
 749     }
 750     TRACE("returning %d\n", ret);
 751     return ret;
 752 }
 753
 754 static BOOL CRYPT_SaveSerializedToFile(HCERTSTORE store,
 755  DWORD dwMsgAndCertEncodingType, void *handle)
 756 {
 757     return CRYPT_WriteSerializedStoreToFile(handle, store);
 758 }
 759
 760 struct MemWrittenTracker
 761 {
 762     DWORD cbData;
 763     BYTE *pbData;
 764     DWORD written;
 765 };
 766
 767 /* handle is a pointer to a MemWrittenTracker.  Assumes its pointer is valid. */
 768 static BOOL CRYPT_MemOutputFunc(void *handle, const void *buffer, DWORD size)
 769 {
 770     struct MemWrittenTracker *tracker = (struct MemWrittenTracker *)handle;
 771     BOOL ret;
 772
 773     if (tracker->written + size > tracker->cbData)
 774     {
 775         SetLastError(ERROR_MORE_DATA);
 776         /* Update written so caller can notify its caller of the required size
 777          */
 778         tracker->written += size;
 779         ret = FALSE;
 780     }
 781     else
 782     {
 783         memcpy(tracker->pbData + tracker->written, buffer, size);
 784         tracker->written += size;
 785         ret = TRUE;
 786     }
 787     return ret;
 788 }
 789
 790 static BOOL CRYPT_CountSerializedBytes(void *handle, const void *buffer,
 791  DWORD size)
 792 {
 793     *(DWORD *)handle += size;
 794     return TRUE;
 795 }
 796
 797 static BOOL CRYPT_SaveSerializedToMem(HCERTSTORE store,
 798  DWORD dwMsgAndCertEncodingType, void *handle)
 799 {
 800     CERT_BLOB *blob = (CERT_BLOB *)handle;
 801     DWORD size;
 802     BOOL ret;
 803
 804     ret = CRYPT_WriteSerializedStoreToStream(store, CRYPT_CountSerializedBytes,
 805      &size);
 806     if (ret)
 807     {
 808         if (!blob->pbData)
 809             blob->cbData = size;
 810         else if (blob->cbData < size)
 811         {
 812             SetLastError(ERROR_MORE_DATA);
 813             blob->cbData = size;
 814             ret = FALSE;
 815         }
 816         else
 817         {
 818             struct MemWrittenTracker tracker = { blob->cbData, blob->pbData,
 819              0 };
 820
 821             ret = CRYPT_WriteSerializedStoreToStream(store, CRYPT_MemOutputFunc,
 822              &tracker);
 823             if (!ret && GetLastError() == ERROR_MORE_DATA)
 824                 blob->cbData = tracker.written;
 825         }
 826     }
 827     TRACE("returning %d\n", ret);
 828     return ret;
 829 }
 830
 831 BOOL WINAPI CertSaveStore(HCERTSTORE hCertStore, DWORD dwMsgAndCertEncodingType,
 832  DWORD dwSaveAs, DWORD dwSaveTo, void *pvSaveToPara, DWORD dwFlags)
 833 {
 834     BOOL (*saveFunc)(HCERTSTORE, DWORD, void *);
 835     void *handle;
 836     BOOL ret;
 837
 838     TRACE("(%p, %08x, %d, %d, %p, %08x)\n", hCertStore,
 839           dwMsgAndCertEncodingType, dwSaveAs, dwSaveTo, pvSaveToPara, dwFlags);
 840
 841     switch (dwSaveAs)
 842     {
 843     case CERT_STORE_SAVE_AS_STORE:
 844     case CERT_STORE_SAVE_AS_PKCS7:
 845         break;
 846     default:
 847         WARN("unimplemented for %d\n", dwSaveAs);
 848         SetLastError(ERROR_INVALID_PARAMETER);
 849         return FALSE;
 850     }
 851     switch (dwSaveTo)
 852     {
 853     case CERT_STORE_SAVE_TO_FILE:
 854         handle = pvSaveToPara;
 855         saveFunc = dwSaveAs == CERT_STORE_SAVE_AS_STORE ?
 856          CRYPT_SaveSerializedToFile : CRYPT_SavePKCSToFile;
 857         break;
 858     case CERT_STORE_SAVE_TO_FILENAME_A:
 859         handle = CreateFileA((LPCSTR)pvSaveToPara, GENERIC_WRITE, 0, NULL,
 860          CREATE_ALWAYS, 0, NULL);
 861         saveFunc = dwSaveAs == CERT_STORE_SAVE_AS_STORE ?
 862          CRYPT_SaveSerializedToFile : CRYPT_SavePKCSToFile;
 863         break;
 864     case CERT_STORE_SAVE_TO_FILENAME_W:
 865         handle = CreateFileW((LPCWSTR)pvSaveToPara, GENERIC_WRITE, 0, NULL,
 866          CREATE_ALWAYS, 0, NULL);
 867         saveFunc = dwSaveAs == CERT_STORE_SAVE_AS_STORE ?
 868          CRYPT_SaveSerializedToFile : CRYPT_SavePKCSToFile;
 869         break;
 870     case CERT_STORE_SAVE_TO_MEMORY:
 871         handle = pvSaveToPara;
 872         saveFunc = dwSaveAs == CERT_STORE_SAVE_AS_STORE ?
 873          CRYPT_SaveSerializedToMem : CRYPT_SavePKCSToMem;
 874         break;
 875     default:
 876         WARN("unimplemented for %d\n", dwSaveTo);
 877         SetLastError(ERROR_INVALID_PARAMETER);
 878         return FALSE;
 879     }
 880     ret = saveFunc(hCertStore, dwMsgAndCertEncodingType, handle);
 881     TRACE("returning %d\n", ret);
 882     return ret;
 883 }
 884
 885 BOOL WINAPI CertAddSerializedElementToStore(HCERTSTORE hCertStore,
 886  const BYTE *pbElement, DWORD cbElement, DWORD dwAddDisposition, DWORD dwFlags,
 887  DWORD dwContextTypeFlags, DWORD *pdwContentType, const void **ppvContext)
 888 {
 889     const void *context;
 890     DWORD type;
 891     BOOL ret;
 892
 893     TRACE("(%p, %p, %d, %08x, %08x, %08x, %p, %p)\n", hCertStore,
 894      pbElement, cbElement, dwAddDisposition, dwFlags, dwContextTypeFlags,
 895      pdwContentType, ppvContext);
 896
 897     /* Call the internal function, then delete the hashes.  Tests show this
 898      * function uses real hash values, not whatever's stored in the hash
 899      * property.
 900      */
 901     context = CRYPT_ReadSerializedElement(pbElement, cbElement,
 902      dwContextTypeFlags, &type);
 903     if (context)
 904     {
 905         const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
 906
 907         switch (type)
 908         {
 909         case CERT_STORE_CERTIFICATE_CONTEXT:
 910             contextInterface = pCertInterface;
 911             break;
 912         case CERT_STORE_CRL_CONTEXT:
 913             contextInterface = pCRLInterface;
 914             break;
 915         case CERT_STORE_CTL_CONTEXT:
 916             contextInterface = pCTLInterface;
 917             break;
 918         default:
 919             SetLastError(E_INVALIDARG);
 920         }
 921         if (contextInterface)
 922         {
 923             contextInterface->setProp(context, CERT_HASH_PROP_ID, 0, NULL);
 924             contextInterface->setProp(context, CERT_MD5_HASH_PROP_ID, 0, NULL);
 925             contextInterface->setProp(context, CERT_SIGNATURE_HASH_PROP_ID, 0,
 926              NULL);
 927             if (pdwContentType)
 928                 *pdwContentType = type;
 929             ret = contextInterface->addContextToStore(hCertStore, context,
 930              dwAddDisposition, ppvContext);
 931             contextInterface->free(context);
 932         }
 933         else
 934             ret = FALSE;
 935     }
 936     else
 937         ret = FALSE;
 938     return ret;
 939 }