dlls/crypt32/crl.c

   1 /*
   2  * Copyright 2006 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
  20 #include <assert.h>
  21 #include <stdarg.h>
  22 #define NONAMELESSUNION
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wincrypt.h"
  26 #include "wine/debug.h"
  27 #include "wine/unicode.h"
  28 #include "crypt32_private.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  31
  32 static void CRL_free(context_t *context)
  33 {
  34     crl_t *crl = (crl_t*)context;
  35
  36     CryptMemFree(crl->ctx.pbCrlEncoded);
  37     LocalFree(crl->ctx.pCrlInfo);
  38 }
  39
  40 static const context_vtbl_t crl_vtbl;
  41
  42 static context_t *CRL_clone(context_t *context, WINECRYPT_CERTSTORE *store, BOOL use_link)
  43 {
  44     crl_t *crl;
  45
  46     if(use_link) {
  47         crl = (crl_t*)Context_CreateLinkContext(sizeof(CRL_CONTEXT), context, store);
  48         if(!crl)
  49             return NULL;
  50     }else {
  51         const crl_t *cloned = (const crl_t*)context;
  52         DWORD size = 0;
  53         BOOL res;
  54
  55         crl = (crl_t*)Context_CreateDataContext(sizeof(CRL_CONTEXT), &crl_vtbl, store);
  56         if(!crl)
  57             return NULL;
  58
  59         Context_CopyProperties(&crl->ctx, &cloned->ctx);
  60
  61         crl->ctx.dwCertEncodingType = cloned->ctx.dwCertEncodingType;
  62         crl->ctx.pbCrlEncoded = CryptMemAlloc(cloned->ctx.cbCrlEncoded);
  63         memcpy(crl->ctx.pbCrlEncoded, cloned->ctx.pbCrlEncoded, cloned->ctx.cbCrlEncoded);
  64         crl->ctx.cbCrlEncoded = cloned->ctx.cbCrlEncoded;
  65
  66         /* FIXME: We don't need to decode the object here, we could just clone crl info. */
  67         res = CryptDecodeObjectEx(crl->ctx.dwCertEncodingType, X509_CERT_CRL_TO_BE_SIGNED,
  68          crl->ctx.pbCrlEncoded, crl->ctx.cbCrlEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL,
  69          &crl->ctx.pCrlInfo, &size);
  70         if(!res) {
  71             CertFreeCRLContext(&crl->ctx);
  72             return NULL;
  73         }
  74     }
  75
  76     crl->ctx.hCertStore = store;
  77     return &crl->base;
  78 }
  79
  80 static const context_vtbl_t crl_vtbl = {
  81     CRL_free,
  82     CRL_clone
  83 };
  84
  85 PCCRL_CONTEXT WINAPI CertCreateCRLContext(DWORD dwCertEncodingType,
  86  const BYTE* pbCrlEncoded, DWORD cbCrlEncoded)
  87 {
  88     crl_t *crl = NULL;
  89     BOOL ret;
  90     PCRL_INFO crlInfo = NULL;
  91     BYTE *data = NULL;
  92     DWORD size = 0;
  93
  94     TRACE("(%08x, %p, %d)\n", dwCertEncodingType, pbCrlEncoded,
  95      cbCrlEncoded);
  96
  97     if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING)
  98     {
  99         SetLastError(E_INVALIDARG);
 100         return NULL;
 101     }
 102     ret = CryptDecodeObjectEx(dwCertEncodingType, X509_CERT_CRL_TO_BE_SIGNED,
 103      pbCrlEncoded, cbCrlEncoded, CRYPT_DECODE_ALLOC_FLAG, NULL,
 104      &crlInfo, &size);
 105     if (!ret)
 106         return NULL;
 107
 108     crl = (crl_t*)Context_CreateDataContext(sizeof(CRL_CONTEXT), &crl_vtbl, &empty_store);
 109     if (!crl)
 110         return NULL;
 111
 112     data = CryptMemAlloc(cbCrlEncoded);
 113     if (!data)
 114     {
 115         Context_Release(&crl->base);
 116         return NULL;
 117     }
 118
 119     memcpy(data, pbCrlEncoded, cbCrlEncoded);
 120     crl->ctx.dwCertEncodingType = dwCertEncodingType;
 121     crl->ctx.pbCrlEncoded       = data;
 122     crl->ctx.cbCrlEncoded       = cbCrlEncoded;
 123     crl->ctx.pCrlInfo           = crlInfo;
 124     crl->ctx.hCertStore         = &empty_store;
 125
 126     return &crl->ctx;
 127 }
 128
 129 BOOL WINAPI CertAddEncodedCRLToStore(HCERTSTORE hCertStore,
 130  DWORD dwCertEncodingType, const BYTE *pbCrlEncoded, DWORD cbCrlEncoded,
 131  DWORD dwAddDisposition, PCCRL_CONTEXT *ppCrlContext)
 132 {
 133     PCCRL_CONTEXT crl = CertCreateCRLContext(dwCertEncodingType,
 134      pbCrlEncoded, cbCrlEncoded);
 135     BOOL ret;
 136
 137     TRACE("(%p, %08x, %p, %d, %08x, %p)\n", hCertStore, dwCertEncodingType,
 138      pbCrlEncoded, cbCrlEncoded, dwAddDisposition, ppCrlContext);
 139
 140     if (crl)
 141     {
 142         ret = CertAddCRLContextToStore(hCertStore, crl, dwAddDisposition,
 143          ppCrlContext);
 144         CertFreeCRLContext(crl);
 145     }
 146     else
 147         ret = FALSE;
 148     return ret;
 149 }
 150
 151 typedef BOOL (*CrlCompareFunc)(PCCRL_CONTEXT pCrlContext, DWORD dwType,
 152  DWORD dwFlags, const void *pvPara);
 153
 154 static BOOL compare_crl_any(PCCRL_CONTEXT pCrlContext, DWORD dwType,
 155  DWORD dwFlags, const void *pvPara)
 156 {
 157     return TRUE;
 158 }
 159
 160 static BOOL compare_crl_issued_by(PCCRL_CONTEXT pCrlContext, DWORD dwType,
 161  DWORD dwFlags, const void *pvPara)
 162 {
 163     BOOL ret;
 164
 165     if (pvPara)
 166     {
 167         PCCERT_CONTEXT issuer = pvPara;
 168
 169         ret = CertCompareCertificateName(issuer->dwCertEncodingType,
 170          &issuer->pCertInfo->Subject, &pCrlContext->pCrlInfo->Issuer);
 171         if (ret && (dwFlags & CRL_FIND_ISSUED_BY_SIGNATURE_FLAG))
 172             ret = CryptVerifyCertificateSignatureEx(0,
 173              issuer->dwCertEncodingType,
 174              CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL, (void *)pCrlContext,
 175              CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)issuer, 0, NULL);
 176         if (ret && (dwFlags & CRL_FIND_ISSUED_BY_AKI_FLAG))
 177         {
 178             PCERT_EXTENSION ext = CertFindExtension(
 179              szOID_AUTHORITY_KEY_IDENTIFIER2, pCrlContext->pCrlInfo->cExtension,
 180              pCrlContext->pCrlInfo->rgExtension);
 181
 182             if (ext)
 183             {
 184                 CERT_AUTHORITY_KEY_ID2_INFO *info;
 185                 DWORD size;
 186
 187                 if ((ret = CryptDecodeObjectEx(X509_ASN_ENCODING,
 188                  X509_AUTHORITY_KEY_ID2, ext->Value.pbData, ext->Value.cbData,
 189                  CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &size)))
 190                 {
 191                     if (info->AuthorityCertIssuer.cAltEntry &&
 192                      info->AuthorityCertSerialNumber.cbData)
 193                     {
 194                         PCERT_ALT_NAME_ENTRY directoryName = NULL;
 195                         DWORD i;
 196
 197                         for (i = 0; !directoryName &&
 198                          i < info->AuthorityCertIssuer.cAltEntry; i++)
 199                             if (info->AuthorityCertIssuer.rgAltEntry[i].
 200                              dwAltNameChoice == CERT_ALT_NAME_DIRECTORY_NAME)
 201                                 directoryName =
 202                                  &info->AuthorityCertIssuer.rgAltEntry[i];
 203                         if (directoryName)
 204                         {
 205                             ret = CertCompareCertificateName(
 206                              issuer->dwCertEncodingType,
 207                              &issuer->pCertInfo->Subject,
 208                              &directoryName->u.DirectoryName);
 209                             if (ret)
 210                                 ret = CertCompareIntegerBlob(
 211                                  &issuer->pCertInfo->SerialNumber,
 212                                  &info->AuthorityCertSerialNumber);
 213                         }
 214                         else
 215                         {
 216                             FIXME("no supported name type in authority key id2\n");
 217                             ret = FALSE;
 218                         }
 219                     }
 220                     else if (info->KeyId.cbData)
 221                     {
 222                         DWORD size;
 223
 224                         ret = CertGetCertificateContextProperty(issuer,
 225                          CERT_KEY_IDENTIFIER_PROP_ID, NULL, &size);
 226                         if (ret && size == info->KeyId.cbData)
 227                         {
 228                             LPBYTE buf = CryptMemAlloc(size);
 229
 230                             if (buf)
 231                             {
 232                                 CertGetCertificateContextProperty(issuer,
 233                                  CERT_KEY_IDENTIFIER_PROP_ID, buf, &size);
 234                                 ret = !memcmp(buf, info->KeyId.pbData, size);
 235                                 CryptMemFree(buf);
 236                             }
 237                             else
 238                                 ret = FALSE;
 239                         }
 240                         else
 241                             ret = FALSE;
 242                     }
 243                     else
 244                     {
 245                         FIXME("unsupported value for AKI extension\n");
 246                         ret = FALSE;
 247                     }
 248                     LocalFree(info);
 249                 }
 250             }
 251             /* else: a CRL without an AKI matches any cert */
 252         }
 253     }
 254     else
 255         ret = TRUE;
 256     return ret;
 257 }
 258
 259 static BOOL compare_crl_existing(PCCRL_CONTEXT pCrlContext, DWORD dwType,
 260  DWORD dwFlags, const void *pvPara)
 261 {
 262     BOOL ret;
 263
 264     if (pvPara)
 265     {
 266         PCCRL_CONTEXT crl = pvPara;
 267
 268         ret = CertCompareCertificateName(pCrlContext->dwCertEncodingType,
 269          &pCrlContext->pCrlInfo->Issuer, &crl->pCrlInfo->Issuer);
 270     }
 271     else
 272         ret = TRUE;
 273     return ret;
 274 }
 275
 276 static BOOL compare_crl_issued_for(PCCRL_CONTEXT pCrlContext, DWORD dwType,
 277  DWORD dwFlags, const void *pvPara)
 278 {
 279     const CRL_FIND_ISSUED_FOR_PARA *para = pvPara;
 280     BOOL ret;
 281
 282     ret = CertCompareCertificateName(para->pIssuerCert->dwCertEncodingType,
 283      &para->pIssuerCert->pCertInfo->Issuer, &pCrlContext->pCrlInfo->Issuer);
 284     return ret;
 285 }
 286
 287 PCCRL_CONTEXT WINAPI CertFindCRLInStore(HCERTSTORE hCertStore,
 288  DWORD dwCertEncodingType, DWORD dwFindFlags, DWORD dwFindType,
 289  const void *pvFindPara, PCCRL_CONTEXT pPrevCrlContext)
 290 {
 291     PCCRL_CONTEXT ret;
 292     CrlCompareFunc compare;
 293
 294     TRACE("(%p, %d, %d, %d, %p, %p)\n", hCertStore, dwCertEncodingType,
 295          dwFindFlags, dwFindType, pvFindPara, pPrevCrlContext);
 296
 297     switch (dwFindType)
 298     {
 299     case CRL_FIND_ANY:
 300         compare = compare_crl_any;
 301         break;
 302     case CRL_FIND_ISSUED_BY:
 303         compare = compare_crl_issued_by;
 304         break;
 305     case CRL_FIND_EXISTING:
 306         compare = compare_crl_existing;
 307         break;
 308     case CRL_FIND_ISSUED_FOR:
 309         compare = compare_crl_issued_for;
 310         break;
 311     default:
 312         FIXME("find type %08x unimplemented\n", dwFindType);
 313         compare = NULL;
 314     }
 315
 316     if (compare)
 317     {
 318         BOOL matches = FALSE;
 319
 320         ret = pPrevCrlContext;
 321         do {
 322             ret = CertEnumCRLsInStore(hCertStore, ret);
 323             if (ret)
 324                 matches = compare(ret, dwFindType, dwFindFlags, pvFindPara);
 325         } while (ret != NULL && !matches);
 326         if (!ret)
 327             SetLastError(CRYPT_E_NOT_FOUND);
 328     }
 329     else
 330     {
 331         SetLastError(CRYPT_E_NOT_FOUND);
 332         ret = NULL;
 333     }
 334     return ret;
 335 }
 336
 337 PCCRL_CONTEXT WINAPI CertGetCRLFromStore(HCERTSTORE hCertStore,
 338  PCCERT_CONTEXT pIssuerContext, PCCRL_CONTEXT pPrevCrlContext, DWORD *pdwFlags)
 339 {
 340     static const DWORD supportedFlags = CERT_STORE_SIGNATURE_FLAG |
 341      CERT_STORE_TIME_VALIDITY_FLAG | CERT_STORE_BASE_CRL_FLAG |
 342      CERT_STORE_DELTA_CRL_FLAG;
 343     PCCRL_CONTEXT ret;
 344
 345     TRACE("(%p, %p, %p, %08x)\n", hCertStore, pIssuerContext, pPrevCrlContext,
 346      *pdwFlags);
 347
 348     if (*pdwFlags & ~supportedFlags)
 349     {
 350         SetLastError(E_INVALIDARG);
 351         return NULL;
 352     }
 353     if (pIssuerContext)
 354         ret = CertFindCRLInStore(hCertStore, pIssuerContext->dwCertEncodingType,
 355          0, CRL_FIND_ISSUED_BY, pIssuerContext, pPrevCrlContext);
 356     else
 357         ret = CertFindCRLInStore(hCertStore, 0, 0, CRL_FIND_ANY, NULL,
 358          pPrevCrlContext);
 359     if (ret)
 360     {
 361         if (*pdwFlags & CERT_STORE_TIME_VALIDITY_FLAG)
 362         {
 363             if (0 == CertVerifyCRLTimeValidity(NULL, ret->pCrlInfo))
 364                 *pdwFlags &= ~CERT_STORE_TIME_VALIDITY_FLAG;
 365         }
 366         if (*pdwFlags & CERT_STORE_SIGNATURE_FLAG)
 367         {
 368             if (CryptVerifyCertificateSignatureEx(0, ret->dwCertEncodingType,
 369              CRYPT_VERIFY_CERT_SIGN_SUBJECT_CRL, (void *)ret,
 370              CRYPT_VERIFY_CERT_SIGN_ISSUER_CERT, (void *)pIssuerContext, 0,
 371              NULL))
 372                 *pdwFlags &= ~CERT_STORE_SIGNATURE_FLAG;
 373         }
 374     }
 375     return ret;
 376 }
 377
 378 PCCRL_CONTEXT WINAPI CertDuplicateCRLContext(PCCRL_CONTEXT pCrlContext)
 379 {
 380     TRACE("(%p)\n", pCrlContext);
 381     if (pCrlContext)
 382         Context_AddRef(&crl_from_ptr(pCrlContext)->base);
 383     return pCrlContext;
 384 }
 385
 386 BOOL WINAPI CertFreeCRLContext(PCCRL_CONTEXT pCrlContext)
 387 {
 388     TRACE("(%p)\n", pCrlContext);
 389
 390     if (pCrlContext)
 391         Context_Release(&crl_from_ptr(pCrlContext)->base);
 392     return TRUE;
 393 }
 394
 395 DWORD WINAPI CertEnumCRLContextProperties(PCCRL_CONTEXT pCRLContext,
 396  DWORD dwPropId)
 397 {
 398     TRACE("(%p, %d)\n", pCRLContext, dwPropId);
 399
 400     return ContextPropertyList_EnumPropIDs(crl_from_ptr(pCRLContext)->base.properties, dwPropId);
 401 }
 402
 403 static BOOL CRLContext_SetProperty(crl_t *crl, DWORD dwPropId,
 404                                    DWORD dwFlags, const void *pvData);
 405
 406 static BOOL CRLContext_GetHashProp(crl_t *crl, DWORD dwPropId,
 407  ALG_ID algID, const BYTE *toHash, DWORD toHashLen, void *pvData,
 408  DWORD *pcbData)
 409 {
 410     BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
 411      pcbData);
 412     if (ret && pvData)
 413     {
 414         CRYPT_DATA_BLOB blob = { *pcbData, pvData };
 415
 416         ret = CRLContext_SetProperty(crl, dwPropId, 0, &blob);
 417     }
 418     return ret;
 419 }
 420
 421 static BOOL CRLContext_GetProperty(crl_t *crl, DWORD dwPropId,
 422                                    void *pvData, DWORD *pcbData)
 423 {
 424     BOOL ret;
 425     CRYPT_DATA_BLOB blob;
 426
 427     TRACE("(%p, %d, %p, %p)\n", crl, dwPropId, pvData, pcbData);
 428
 429     if (crl->base.properties)
 430         ret = ContextPropertyList_FindProperty(crl->base.properties, dwPropId, &blob);
 431     else
 432         ret = FALSE;
 433     if (ret)
 434     {
 435         if (!pvData)
 436             *pcbData = blob.cbData;
 437         else if (*pcbData < blob.cbData)
 438         {
 439             SetLastError(ERROR_MORE_DATA);
 440             *pcbData = blob.cbData;
 441             ret = FALSE;
 442         }
 443         else
 444         {
 445             memcpy(pvData, blob.pbData, blob.cbData);
 446             *pcbData = blob.cbData;
 447         }
 448     }
 449     else
 450     {
 451         /* Implicit properties */
 452         switch (dwPropId)
 453         {
 454         case CERT_SHA1_HASH_PROP_ID:
 455             ret = CRLContext_GetHashProp(crl, dwPropId, CALG_SHA1,
 456                                          crl->ctx.pbCrlEncoded, crl->ctx.cbCrlEncoded, pvData,
 457              pcbData);
 458             break;
 459         case CERT_MD5_HASH_PROP_ID:
 460             ret = CRLContext_GetHashProp(crl, dwPropId, CALG_MD5,
 461                                          crl->ctx.pbCrlEncoded, crl->ctx.cbCrlEncoded, pvData,
 462              pcbData);
 463             break;
 464         default:
 465             SetLastError(CRYPT_E_NOT_FOUND);
 466         }
 467     }
 468     TRACE("returning %d\n", ret);
 469     return ret;
 470 }
 471
 472 BOOL WINAPI CertGetCRLContextProperty(PCCRL_CONTEXT pCRLContext,
 473  DWORD dwPropId, void *pvData, DWORD *pcbData)
 474 {
 475     BOOL ret;
 476
 477     TRACE("(%p, %d, %p, %p)\n", pCRLContext, dwPropId, pvData, pcbData);
 478
 479     switch (dwPropId)
 480     {
 481     case 0:
 482     case CERT_CERT_PROP_ID:
 483     case CERT_CRL_PROP_ID:
 484     case CERT_CTL_PROP_ID:
 485         SetLastError(E_INVALIDARG);
 486         ret = FALSE;
 487         break;
 488     case CERT_ACCESS_STATE_PROP_ID:
 489         if (!pvData)
 490         {
 491             *pcbData = sizeof(DWORD);
 492             ret = TRUE;
 493         }
 494         else if (*pcbData < sizeof(DWORD))
 495         {
 496             SetLastError(ERROR_MORE_DATA);
 497             *pcbData = sizeof(DWORD);
 498             ret = FALSE;
 499         }
 500         else
 501         {
 502             ret = CertGetStoreProperty(pCRLContext->hCertStore, dwPropId, pvData, pcbData);
 503         }
 504         break;
 505     default:
 506         ret = CRLContext_GetProperty(crl_from_ptr(pCRLContext), dwPropId, pvData, pcbData);
 507     }
 508     return ret;
 509 }
 510
 511 static BOOL CRLContext_SetProperty(crl_t *crl, DWORD dwPropId,
 512  DWORD dwFlags, const void *pvData)
 513 {
 514     BOOL ret;
 515
 516     TRACE("(%p, %d, %08x, %p)\n", crl, dwPropId, dwFlags, pvData);
 517
 518     if (!crl->base.properties)
 519         ret = FALSE;
 520     else if (!pvData)
 521     {
 522         ContextPropertyList_RemoveProperty(crl->base.properties, dwPropId);
 523         ret = TRUE;
 524     }
 525     else
 526     {
 527         switch (dwPropId)
 528         {
 529         case CERT_AUTO_ENROLL_PROP_ID:
 530         case CERT_CTL_USAGE_PROP_ID: /* same as CERT_ENHKEY_USAGE_PROP_ID */
 531         case CERT_DESCRIPTION_PROP_ID:
 532         case CERT_FRIENDLY_NAME_PROP_ID:
 533         case CERT_HASH_PROP_ID:
 534         case CERT_KEY_IDENTIFIER_PROP_ID:
 535         case CERT_MD5_HASH_PROP_ID:
 536         case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
 537         case CERT_PUBKEY_ALG_PARA_PROP_ID:
 538         case CERT_PVK_FILE_PROP_ID:
 539         case CERT_SIGNATURE_HASH_PROP_ID:
 540         case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
 541         case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
 542         case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
 543         case CERT_ENROLLMENT_PROP_ID:
 544         case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
 545         case CERT_RENEWAL_PROP_ID:
 546         {
 547             PCRYPT_DATA_BLOB blob = (PCRYPT_DATA_BLOB)pvData;
 548
 549             ret = ContextPropertyList_SetProperty(crl->base.properties, dwPropId,
 550              blob->pbData, blob->cbData);
 551             break;
 552         }
 553         case CERT_DATE_STAMP_PROP_ID:
 554             ret = ContextPropertyList_SetProperty(crl->base.properties, dwPropId,
 555              pvData, sizeof(FILETIME));
 556             break;
 557         default:
 558             FIXME("%d: stub\n", dwPropId);
 559             ret = FALSE;
 560         }
 561     }
 562     TRACE("returning %d\n", ret);
 563     return ret;
 564 }
 565
 566 BOOL WINAPI CertSetCRLContextProperty(PCCRL_CONTEXT pCRLContext,
 567  DWORD dwPropId, DWORD dwFlags, const void *pvData)
 568 {
 569     BOOL ret;
 570
 571     TRACE("(%p, %d, %08x, %p)\n", pCRLContext, dwPropId, dwFlags, pvData);
 572
 573     /* Handle special cases for "read-only"/invalid prop IDs.  Windows just
 574      * crashes on most of these, I'll be safer.
 575      */
 576     switch (dwPropId)
 577     {
 578     case 0:
 579     case CERT_ACCESS_STATE_PROP_ID:
 580     case CERT_CERT_PROP_ID:
 581     case CERT_CRL_PROP_ID:
 582     case CERT_CTL_PROP_ID:
 583         SetLastError(E_INVALIDARG);
 584         return FALSE;
 585     }
 586     ret = CRLContext_SetProperty(crl_from_ptr(pCRLContext), dwPropId, dwFlags, pvData);
 587     TRACE("returning %d\n", ret);
 588     return ret;
 589 }
 590
 591 static BOOL compare_dist_point_name(const CRL_DIST_POINT_NAME *name1,
 592  const CRL_DIST_POINT_NAME *name2)
 593 {
 594     BOOL match;
 595
 596     if (name1->dwDistPointNameChoice == name2->dwDistPointNameChoice)
 597     {
 598         match = TRUE;
 599         if (name1->dwDistPointNameChoice == CRL_DIST_POINT_FULL_NAME)
 600         {
 601             if (name1->u.FullName.cAltEntry == name2->u.FullName.cAltEntry)
 602             {
 603                 DWORD i;
 604
 605                 for (i = 0; match && i < name1->u.FullName.cAltEntry; i++)
 606                 {
 607                     const CERT_ALT_NAME_ENTRY *entry1 =
 608                      &name1->u.FullName.rgAltEntry[i];
 609                     const CERT_ALT_NAME_ENTRY *entry2 =
 610                      &name2->u.FullName.rgAltEntry[i];
 611
 612                     if (entry1->dwAltNameChoice == entry2->dwAltNameChoice)
 613                     {
 614                         switch (entry1->dwAltNameChoice)
 615                         {
 616                         case CERT_ALT_NAME_URL:
 617                             match = !strcmpiW(entry1->u.pwszURL,
 618                              entry2->u.pwszURL);
 619                             break;
 620                         case CERT_ALT_NAME_DIRECTORY_NAME:
 621                             match = (entry1->u.DirectoryName.cbData ==
 622                              entry2->u.DirectoryName.cbData) &&
 623                              !memcmp(entry1->u.DirectoryName.pbData,
 624                              entry2->u.DirectoryName.pbData,
 625                              entry1->u.DirectoryName.cbData);
 626                             break;
 627                         default:
 628                             FIXME("unimplemented for type %d\n",
 629                              entry1->dwAltNameChoice);
 630                             match = FALSE;
 631                         }
 632                     }
 633                     else
 634                         match = FALSE;
 635                 }
 636             }
 637             else
 638                 match = FALSE;
 639         }
 640     }
 641     else
 642         match = FALSE;
 643     return match;
 644 }
 645
 646 static BOOL match_dist_point_with_issuing_dist_point(
 647  const CRL_DIST_POINT *distPoint, const CRL_ISSUING_DIST_POINT *idp)
 648 {
 649     BOOL match;
 650
 651     /* While RFC 5280, section 4.2.1.13 recommends against segmenting
 652      * CRL distribution points by reasons, it doesn't preclude doing so.
 653      * "This profile RECOMMENDS against segmenting CRLs by reason code."
 654      * If the issuing distribution point for this CRL is only valid for
 655      * some reasons, only match if the reasons covered also match the
 656      * reasons in the CRL distribution point.
 657      */
 658     if (idp->OnlySomeReasonFlags.cbData)
 659     {
 660         if (idp->OnlySomeReasonFlags.cbData == distPoint->ReasonFlags.cbData)
 661         {
 662             DWORD i;
 663
 664             match = TRUE;
 665             for (i = 0; match && i < distPoint->ReasonFlags.cbData; i++)
 666                 if (idp->OnlySomeReasonFlags.pbData[i] !=
 667                  distPoint->ReasonFlags.pbData[i])
 668                     match = FALSE;
 669         }
 670         else
 671             match = FALSE;
 672     }
 673     else
 674         match = TRUE;
 675     if (match)
 676         match = compare_dist_point_name(&idp->DistPointName,
 677          &distPoint->DistPointName);
 678     return match;
 679 }
 680
 681 BOOL WINAPI CertIsValidCRLForCertificate(PCCERT_CONTEXT pCert,
 682  PCCRL_CONTEXT pCrl, DWORD dwFlags, void *pvReserved)
 683 {
 684     PCERT_EXTENSION ext;
 685     BOOL ret;
 686
 687     TRACE("(%p, %p, %08x, %p)\n", pCert, pCrl, dwFlags, pvReserved);
 688
 689     if (!pCert)
 690         return TRUE;
 691
 692     if ((ext = CertFindExtension(szOID_ISSUING_DIST_POINT,
 693      pCrl->pCrlInfo->cExtension, pCrl->pCrlInfo->rgExtension)))
 694     {
 695         CRL_ISSUING_DIST_POINT *idp;
 696         DWORD size;
 697
 698         if ((ret = CryptDecodeObjectEx(pCrl->dwCertEncodingType,
 699          X509_ISSUING_DIST_POINT, ext->Value.pbData, ext->Value.cbData,
 700          CRYPT_DECODE_ALLOC_FLAG, NULL, &idp, &size)))
 701         {
 702             if ((ext = CertFindExtension(szOID_CRL_DIST_POINTS,
 703              pCert->pCertInfo->cExtension, pCert->pCertInfo->rgExtension)))
 704             {
 705                 CRL_DIST_POINTS_INFO *distPoints;
 706
 707                 if ((ret = CryptDecodeObjectEx(pCert->dwCertEncodingType,
 708                  X509_CRL_DIST_POINTS, ext->Value.pbData, ext->Value.cbData,
 709                  CRYPT_DECODE_ALLOC_FLAG, NULL, &distPoints, &size)))
 710                 {
 711                     DWORD i;
 712
 713                     ret = FALSE;
 714                     for (i = 0; !ret && i < distPoints->cDistPoint; i++)
 715                         ret = match_dist_point_with_issuing_dist_point(
 716                          &distPoints->rgDistPoint[i], idp);
 717                     if (!ret)
 718                         SetLastError(CRYPT_E_NO_MATCH);
 719                     LocalFree(distPoints);
 720                 }
 721             }
 722             else
 723             {
 724                 /* no CRL dist points extension in cert, can't match the CRL
 725                  * (which has an issuing dist point extension)
 726                  */
 727                 ret = FALSE;
 728                 SetLastError(CRYPT_E_NO_MATCH);
 729             }
 730             LocalFree(idp);
 731         }
 732     }
 733     else
 734         ret = TRUE;
 735     return ret;
 736 }
 737
 738 static PCRL_ENTRY CRYPT_FindCertificateInCRL(PCERT_INFO cert, const CRL_INFO *crl)
 739 {
 740     DWORD i;
 741     PCRL_ENTRY entry = NULL;
 742
 743     for (i = 0; !entry && i < crl->cCRLEntry; i++)
 744         if (CertCompareIntegerBlob(&crl->rgCRLEntry[i].SerialNumber,
 745          &cert->SerialNumber))
 746             entry = &crl->rgCRLEntry[i];
 747     return entry;
 748 }
 749
 750 BOOL WINAPI CertFindCertificateInCRL(PCCERT_CONTEXT pCert,
 751  PCCRL_CONTEXT pCrlContext, DWORD dwFlags, void *pvReserved,
 752  PCRL_ENTRY *ppCrlEntry)
 753 {
 754     TRACE("(%p, %p, %08x, %p, %p)\n", pCert, pCrlContext, dwFlags, pvReserved,
 755      ppCrlEntry);
 756
 757     *ppCrlEntry = CRYPT_FindCertificateInCRL(pCert->pCertInfo,
 758      pCrlContext->pCrlInfo);
 759     return TRUE;
 760 }
 761
 762 BOOL WINAPI CertVerifyCRLRevocation(DWORD dwCertEncodingType,
 763  PCERT_INFO pCertId, DWORD cCrlInfo, PCRL_INFO rgpCrlInfo[])
 764 {
 765     DWORD i;
 766     PCRL_ENTRY entry = NULL;
 767
 768     TRACE("(%08x, %p, %d, %p)\n", dwCertEncodingType, pCertId, cCrlInfo,
 769      rgpCrlInfo);
 770
 771     for (i = 0; !entry && i < cCrlInfo; i++)
 772         entry = CRYPT_FindCertificateInCRL(pCertId, rgpCrlInfo[i]);
 773     return entry == NULL;
 774 }
 775
 776 LONG WINAPI CertVerifyCRLTimeValidity(LPFILETIME pTimeToVerify,
 777  PCRL_INFO pCrlInfo)
 778 {
 779     FILETIME fileTime;
 780     LONG ret;
 781
 782     if (!pTimeToVerify)
 783     {
 784         GetSystemTimeAsFileTime(&fileTime);
 785         pTimeToVerify = &fileTime;
 786     }
 787     if ((ret = CompareFileTime(pTimeToVerify, &pCrlInfo->ThisUpdate)) >= 0)
 788     {
 789         ret = CompareFileTime(pTimeToVerify, &pCrlInfo->NextUpdate);
 790         if (ret < 0)
 791             ret = 0;
 792     }
 793     return ret;
 794 }