git.oblomov.eu Git - wine/blob - dlls/wintrust/crypt.c

   1 /*
   2  * WinTrust Cryptography functions
   3  *
   4  * Copyright 2006 James Hawkins
   5  * Copyright 2000-2002 Stuart Caie
   6  * Copyright 2002 Patrik Stridvall
   7  * Copyright 2003 Greg Turner
   8  * Copyright 2008 Juan Lang
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wintrust.h"
  30 #include "mscat.h"
  31 #include "mssip.h"
  32 #include "imagehlp.h"
  33 #include "winternl.h"
  34
  35 #include "wine/debug.h"
  36 #include "wine/unicode.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(wintrust);
  39
  40 #define CATADMIN_MAGIC 0x43415441 /* 'CATA' */
  41 #define CRYPTCAT_MAGIC 0x43415443 /* 'CATC' */
  42 #define CATINFO_MAGIC  0x43415449 /* 'CATI' */
  43
  44 struct cryptcat
  45 {
  46     DWORD     magic;
  47     HCRYPTMSG msg;
  48     DWORD     encoding;
  49     CTL_INFO *inner;
  50     DWORD     inner_len;
  51     GUID      subject;
  52     DWORD     attr_count;
  53     CRYPTCATATTRIBUTE *attr;
  54 };
  55
  56 struct catadmin
  57 {
  58     DWORD magic;
  59     WCHAR path[MAX_PATH];
  60     HANDLE find;
  61 };
  62
  63 struct catinfo
  64 {
  65     DWORD magic;
  66     WCHAR file[MAX_PATH];
  67 };
  68
  69 static HCATINFO create_catinfo(const WCHAR *filename)
  70 {
  71     struct catinfo *ci;
  72
  73     if (!(ci = HeapAlloc(GetProcessHeap(), 0, sizeof(*ci))))
  74     {
  75         SetLastError(ERROR_OUTOFMEMORY);
  76         return INVALID_HANDLE_VALUE;
  77     }
  78     strcpyW(ci->file, filename);
  79     ci->magic = CATINFO_MAGIC;
  80     return ci;
  81 }
  82
  83 /***********************************************************************
  84  *      CryptCATAdminAcquireContext (WINTRUST.@)
  85  *
  86  * Get a catalog administrator context handle.
  87  *
  88  * PARAMS
  89  *   catAdmin  [O] Pointer to the context handle.
  90  *   sys       [I] Pointer to a GUID for the needed subsystem.
  91  *   dwFlags   [I] Reserved.
  92  *
  93  * RETURNS
  94  *   Success: TRUE. catAdmin contains the context handle.
  95  *   Failure: FALSE.
  96  *
  97  */
  98 BOOL WINAPI CryptCATAdminAcquireContext(HCATADMIN *catAdmin,
  99                                         const GUID *sys, DWORD dwFlags)
 100 {
 101     static const WCHAR catroot[] =
 102         {'\\','c','a','t','r','o','o','t',0};
 103     static const WCHAR fmt[] =
 104         {'%','s','\\','{','%','0','8','x','-','%','0','4','x','-','%','0',
 105          '4','x','-','%','0','2','x','%','0','2','x','-','%','0','2','x',
 106          '%','0','2','x','%','0','2','x','%','0','2','x','%','0','2','x',
 107          '%','0','2','x','}',0};
 108     static const GUID defsys =
 109         {0x127d0a1d,0x4ef2,0x11d1,{0x86,0x08,0x00,0xc0,0x4f,0xc2,0x95,0xee}};
 110
 111     WCHAR catroot_dir[MAX_PATH];
 112     struct catadmin *ca;
 113
 114     TRACE("%p %s %x\n", catAdmin, debugstr_guid(sys), dwFlags);
 115
 116     if (!catAdmin)
 117     {
 118         SetLastError(ERROR_INVALID_PARAMETER);
 119         return FALSE;
 120     }
 121     if (!(ca = HeapAlloc(GetProcessHeap(), 0, sizeof(*ca))))
 122     {
 123         SetLastError(ERROR_OUTOFMEMORY);
 124         return FALSE;
 125     }
 126
 127     GetSystemDirectoryW(catroot_dir, MAX_PATH);
 128     strcatW(catroot_dir, catroot);
 129
 130     /* create the directory if it doesn't exist */
 131     CreateDirectoryW(catroot_dir, NULL);
 132
 133     if (!sys) sys = &defsys;
 134     sprintfW(ca->path, fmt, catroot_dir, sys->Data1, sys->Data2,
 135              sys->Data3, sys->Data4[0], sys->Data4[1], sys->Data4[2],
 136              sys->Data4[3], sys->Data4[4], sys->Data4[5], sys->Data4[6],
 137              sys->Data4[7]);
 138
 139     /* create the directory if it doesn't exist */
 140     CreateDirectoryW(ca->path, NULL);
 141
 142     ca->magic = CATADMIN_MAGIC;
 143     ca->find = INVALID_HANDLE_VALUE;
 144
 145     *catAdmin = ca;
 146     return TRUE;
 147 }
 148
 149 /***********************************************************************
 150  *             CryptCATAdminAddCatalog (WINTRUST.@)
 151  */
 152 HCATINFO WINAPI CryptCATAdminAddCatalog(HCATADMIN catAdmin, PWSTR catalogFile,
 153                                         PWSTR selectBaseName, DWORD flags)
 154 {
 155     static const WCHAR slashW[] = {'\\',0};
 156     struct catadmin *ca = catAdmin;
 157     struct catinfo *ci;
 158     WCHAR *target;
 159     DWORD len;
 160
 161     TRACE("%p %s %s %d\n", catAdmin, debugstr_w(catalogFile),
 162           debugstr_w(selectBaseName), flags);
 163
 164     if (!selectBaseName)
 165     {
 166         FIXME("NULL basename not handled\n");
 167         SetLastError(ERROR_INVALID_PARAMETER);
 168         return NULL;
 169     }
 170     if (!ca || ca->magic != CATADMIN_MAGIC || !catalogFile || flags)
 171     {
 172         SetLastError(ERROR_INVALID_PARAMETER);
 173         return NULL;
 174     }
 175
 176     len = strlenW(ca->path) + strlenW(selectBaseName) + 2;
 177     if (!(target = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
 178     {
 179         SetLastError(ERROR_OUTOFMEMORY);
 180         return NULL;
 181     }
 182     strcpyW(target, ca->path);
 183     strcatW(target, slashW);
 184     strcatW(target, selectBaseName);
 185
 186     if (!CopyFileW(catalogFile, target, FALSE))
 187     {
 188         HeapFree(GetProcessHeap(), 0, target);
 189         return NULL;
 190     }
 191     SetFileAttributesW(target, FILE_ATTRIBUTE_SYSTEM);
 192
 193     if (!(ci = HeapAlloc(GetProcessHeap(), 0, sizeof(*ci))))
 194     {
 195         HeapFree(GetProcessHeap(), 0, target);
 196         SetLastError(ERROR_OUTOFMEMORY);
 197         return NULL;
 198     }
 199     ci->magic = CATINFO_MAGIC;
 200     strcpyW(ci->file, target);
 201
 202     HeapFree(GetProcessHeap(), 0, target);
 203     return ci;
 204 }
 205
 206 /***********************************************************************
 207  *             CryptCATAdminCalcHashFromFileHandle (WINTRUST.@)
 208  */
 209 BOOL WINAPI CryptCATAdminCalcHashFromFileHandle(HANDLE hFile, DWORD* pcbHash,
 210                                                 BYTE* pbHash, DWORD dwFlags )
 211 {
 212     BOOL ret = FALSE;
 213
 214     TRACE("%p %p %p %x\n", hFile, pcbHash, pbHash, dwFlags);
 215
 216     if (!hFile || !pcbHash || dwFlags)
 217     {
 218         SetLastError(ERROR_INVALID_PARAMETER);
 219         return FALSE;
 220     }
 221     if (*pcbHash < 20)
 222     {
 223         *pcbHash = 20;
 224         SetLastError(ERROR_INSUFFICIENT_BUFFER);
 225         return TRUE;
 226     }
 227
 228     *pcbHash = 20;
 229     if (pbHash)
 230     {
 231         HCRYPTPROV prov;
 232         HCRYPTHASH hash;
 233         DWORD bytes_read;
 234         BYTE *buffer;
 235
 236         if (!(buffer = HeapAlloc(GetProcessHeap(), 0, 4096)))
 237         {
 238             SetLastError(ERROR_OUTOFMEMORY);
 239             return FALSE;
 240         }
 241         ret = CryptAcquireContextW(&prov, NULL, MS_DEF_PROV_W, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
 242         if (!ret)
 243         {
 244             HeapFree(GetProcessHeap(), 0, buffer);
 245             return FALSE;
 246         }
 247         ret = CryptCreateHash(prov, CALG_SHA1, 0, 0, &hash);
 248         if (!ret)
 249         {
 250             HeapFree(GetProcessHeap(), 0, buffer);
 251             CryptReleaseContext(prov, 0);
 252             return FALSE;
 253         }
 254         while ((ret = ReadFile(hFile, buffer, 4096, &bytes_read, NULL)) && bytes_read)
 255         {
 256             CryptHashData(hash, buffer, bytes_read, 0);
 257         }
 258         if (ret) ret = CryptGetHashParam(hash, HP_HASHVAL, pbHash, pcbHash, 0);
 259
 260         HeapFree(GetProcessHeap(), 0, buffer);
 261         CryptDestroyHash(hash);
 262         CryptReleaseContext(prov, 0);
 263     }
 264     return ret;
 265 }
 266
 267 /***********************************************************************
 268  *             CryptCATAdminEnumCatalogFromHash (WINTRUST.@)
 269  */
 270 HCATINFO WINAPI CryptCATAdminEnumCatalogFromHash(HCATADMIN hCatAdmin, BYTE* pbHash,
 271                                                  DWORD cbHash, DWORD dwFlags,
 272                                                  HCATINFO* phPrevCatInfo )
 273 {
 274     static const WCHAR slashW[] = {'\\',0};
 275     static const WCHAR globW[]  = {'\\','*','.','c','a','t',0};
 276
 277     struct catadmin *ca = hCatAdmin;
 278     WIN32_FIND_DATAW data;
 279     HCATINFO prev = NULL;
 280     HCRYPTPROV prov;
 281     DWORD size;
 282     BOOL ret;
 283
 284     TRACE("%p %p %d %x %p\n", hCatAdmin, pbHash, cbHash, dwFlags, phPrevCatInfo);
 285
 286     if (!ca || ca->magic != CATADMIN_MAGIC || !pbHash || cbHash != 20 || dwFlags)
 287     {
 288         SetLastError(ERROR_INVALID_PARAMETER);
 289         return NULL;
 290     }
 291     if (phPrevCatInfo) prev = *phPrevCatInfo;
 292
 293     ret = CryptAcquireContextW(&prov, NULL, MS_DEF_PROV_W, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);
 294     if (!ret) return NULL;
 295
 296     if (!prev)
 297     {
 298         WCHAR *path;
 299
 300         size = strlenW(ca->path) * sizeof(WCHAR) + sizeof(globW);
 301         if (!(path = HeapAlloc(GetProcessHeap(), 0, size)))
 302         {
 303             CryptReleaseContext(prov, 0);
 304             SetLastError(ERROR_OUTOFMEMORY);
 305             return NULL;
 306         }
 307         strcpyW(path, ca->path);
 308         strcatW(path, globW);
 309
 310         FindClose(ca->find);
 311         ca->find = FindFirstFileW(path, &data);
 312
 313         HeapFree(GetProcessHeap(), 0, path);
 314         if (ca->find == INVALID_HANDLE_VALUE)
 315         {
 316             CryptReleaseContext(prov, 0);
 317             return NULL;
 318         }
 319     }
 320     else if (!FindNextFileW(ca->find, &data))
 321     {
 322         CryptCATAdminReleaseCatalogContext(hCatAdmin, prev, 0);
 323         CryptReleaseContext(prov, 0);
 324         return NULL;
 325     }
 326
 327     while (1)
 328     {
 329         WCHAR *filename;
 330         CRYPTCATMEMBER *member = NULL;
 331         struct catinfo *ci;
 332         HANDLE hcat;
 333
 334         size = (strlenW(ca->path) + strlenW(data.cFileName) + 2) * sizeof(WCHAR);
 335         if (!(filename = HeapAlloc(GetProcessHeap(), 0, size)))
 336         {
 337             SetLastError(ERROR_OUTOFMEMORY);
 338             return NULL;
 339         }
 340         strcpyW(filename, ca->path);
 341         strcatW(filename, slashW);
 342         strcatW(filename, data.cFileName);
 343
 344         hcat = CryptCATOpen(filename, CRYPTCAT_OPEN_EXISTING, prov, 0, 0);
 345         if (hcat == INVALID_HANDLE_VALUE)
 346         {
 347             WARN("couldn't open %s (%u)\n", debugstr_w(filename), GetLastError());
 348             continue;
 349         }
 350         while ((member = CryptCATEnumerateMember(hcat, member)))
 351         {
 352             if (member->pIndirectData->Digest.cbData != cbHash)
 353             {
 354                 WARN("amount of hash bytes differs: %u/%u\n", member->pIndirectData->Digest.cbData, cbHash);
 355                 continue;
 356             }
 357             if (!memcmp(member->pIndirectData->Digest.pbData, pbHash, cbHash))
 358             {
 359                 TRACE("file %s matches\n", debugstr_w(data.cFileName));
 360
 361                 CryptCATClose(hcat);
 362                 CryptReleaseContext(prov, 0);
 363                 if (!phPrevCatInfo)
 364                 {
 365                     FindClose(ca->find);
 366                     ca->find = INVALID_HANDLE_VALUE;
 367                 }
 368                 ci = create_catinfo(filename);
 369                 HeapFree(GetProcessHeap(), 0, filename);
 370                 return ci;
 371             }
 372         }
 373         CryptCATClose(hcat);
 374         HeapFree(GetProcessHeap(), 0, filename);
 375
 376         if (!FindNextFileW(ca->find, &data))
 377         {
 378             FindClose(ca->find);
 379             ca->find = INVALID_HANDLE_VALUE;
 380             CryptReleaseContext(prov, 0);
 381             return NULL;
 382         }
 383     }
 384     return NULL;
 385 }
 386
 387 /***********************************************************************
 388  *      CryptCATAdminReleaseCatalogContext (WINTRUST.@)
 389  *
 390  * Release a catalog context handle.
 391  *
 392  * PARAMS
 393  *   hCatAdmin [I] Context handle.
 394  *   hCatInfo  [I] Catalog handle.
 395  *   dwFlags   [I] Reserved.
 396  *
 397  * RETURNS
 398  *   Success: TRUE.
 399  *   Failure: FALSE.
 400  *
 401  */
 402 BOOL WINAPI CryptCATAdminReleaseCatalogContext(HCATADMIN hCatAdmin,
 403                                                HCATINFO hCatInfo,
 404                                                DWORD dwFlags)
 405 {
 406     struct catinfo *ci = hCatInfo;
 407     struct catadmin *ca = hCatAdmin;
 408
 409     TRACE("%p %p %x\n", hCatAdmin, hCatInfo, dwFlags);
 410
 411     if (!ca || ca->magic != CATADMIN_MAGIC || !ci || ci->magic != CATINFO_MAGIC)
 412     {
 413         SetLastError(ERROR_INVALID_PARAMETER);
 414         return FALSE;
 415     }
 416     ci->magic = 0;
 417     return HeapFree(GetProcessHeap(), 0, ci);
 418 }
 419
 420 /***********************************************************************
 421  *      CryptCATAdminReleaseContext (WINTRUST.@)
 422  *
 423  * Release a catalog administrator context handle.
 424  *
 425  * PARAMS
 426  *   catAdmin  [I] Context handle.
 427  *   dwFlags   [I] Reserved.
 428  *
 429  * RETURNS
 430  *   Success: TRUE.
 431  *   Failure: FALSE.
 432  *
 433  */
 434 BOOL WINAPI CryptCATAdminReleaseContext(HCATADMIN hCatAdmin, DWORD dwFlags )
 435 {
 436     struct catadmin *ca = hCatAdmin;
 437
 438     TRACE("%p %x\n", hCatAdmin, dwFlags);
 439
 440     if (!ca || ca->magic != CATADMIN_MAGIC)
 441     {
 442         SetLastError(ERROR_INVALID_PARAMETER);
 443         return FALSE;
 444     }
 445     if (ca->find != INVALID_HANDLE_VALUE) FindClose(ca->find);
 446     ca->magic = 0;
 447     return HeapFree(GetProcessHeap(), 0, ca);
 448 }
 449
 450 /***********************************************************************
 451  *      CryptCATAdminRemoveCatalog (WINTRUST.@)
 452  *
 453  * Remove a catalog file.
 454  *
 455  * PARAMS
 456  *   catAdmin         [I] Context handle.
 457  *   pwszCatalogFile  [I] Catalog file.
 458  *   dwFlags          [I] Reserved.
 459  *
 460  * RETURNS
 461  *   Success: TRUE.
 462  *   Failure: FALSE.
 463  *
 464  */
 465 BOOL WINAPI CryptCATAdminRemoveCatalog(HCATADMIN hCatAdmin, LPCWSTR pwszCatalogFile, DWORD dwFlags)
 466 {
 467     struct catadmin *ca = hCatAdmin;
 468
 469     TRACE("%p %s %x\n", hCatAdmin, debugstr_w(pwszCatalogFile), dwFlags);
 470
 471     if (!ca || ca->magic != CATADMIN_MAGIC)
 472     {
 473         SetLastError(ERROR_INVALID_PARAMETER);
 474         return FALSE;
 475     }
 476
 477     /* Only delete when there is a filename and no path */
 478     if (pwszCatalogFile && pwszCatalogFile[0] != 0 &&
 479         !strchrW(pwszCatalogFile, '\\') && !strchrW(pwszCatalogFile, '/') &&
 480         !strchrW(pwszCatalogFile, ':'))
 481     {
 482         static const WCHAR slashW[] = {'\\',0};
 483         WCHAR *target;
 484         DWORD len;
 485
 486         len = strlenW(ca->path) + strlenW(pwszCatalogFile) + 2;
 487         if (!(target = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR))))
 488         {
 489             SetLastError(ERROR_OUTOFMEMORY);
 490             return FALSE;
 491         }
 492         strcpyW(target, ca->path);
 493         strcatW(target, slashW);
 494         strcatW(target, pwszCatalogFile);
 495
 496         DeleteFileW(target);
 497
 498         HeapFree(GetProcessHeap(), 0, target);
 499     }
 500
 501     return TRUE;
 502 }
 503
 504 /***********************************************************************
 505  *      CryptCATAdminResolveCatalogPath  (WINTRUST.@)
 506  */
 507 BOOL WINAPI CryptCATAdminResolveCatalogPath(HCATADMIN hcatadmin, WCHAR *catalog_file,
 508                                             CATALOG_INFO *info, DWORD flags)
 509 {
 510     static const WCHAR slashW[] = {'\\',0};
 511     struct catadmin *ca = hcatadmin;
 512
 513     TRACE("%p %s %p %x\n", hcatadmin, debugstr_w(catalog_file), info, flags);
 514
 515     if (!ca || ca->magic != CATADMIN_MAGIC || !info || info->cbStruct != sizeof(*info) || flags)
 516     {
 517         SetLastError(ERROR_INVALID_PARAMETER);
 518         return FALSE;
 519     }
 520     strcpyW(info->wszCatalogFile, ca->path);
 521     strcatW(info->wszCatalogFile, slashW);
 522     strcatW(info->wszCatalogFile, catalog_file);
 523
 524     return TRUE;
 525 }
 526
 527 /***********************************************************************
 528  *      CryptCATClose  (WINTRUST.@)
 529  */
 530 BOOL WINAPI CryptCATClose(HANDLE hCatalog)
 531 {
 532     struct cryptcat *cc = hCatalog;
 533
 534     TRACE("(%p)\n", hCatalog);
 535
 536     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 537     {
 538         SetLastError(ERROR_INVALID_PARAMETER);
 539         return FALSE;
 540     }
 541     HeapFree(GetProcessHeap(), 0, cc->attr);
 542     HeapFree(GetProcessHeap(), 0, cc->inner);
 543     CryptMsgClose(cc->msg);
 544
 545     cc->magic = 0;
 546     HeapFree(GetProcessHeap(), 0, cc);
 547     return TRUE;
 548 }
 549
 550 /***********************************************************************
 551  *      CryptCATGetAttrInfo  (WINTRUST.@)
 552  */
 553 CRYPTCATATTRIBUTE * WINAPI CryptCATGetAttrInfo(HANDLE hCatalog, CRYPTCATMEMBER *member, LPWSTR tag)
 554 {
 555     struct cryptcat *cc = hCatalog;
 556
 557     FIXME("%p, %p, %s\n", hCatalog, member, debugstr_w(tag));
 558
 559     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 560     {
 561         SetLastError(ERROR_INVALID_PARAMETER);
 562         return NULL;
 563     }
 564     SetLastError(CRYPT_E_NOT_FOUND);
 565     return NULL;
 566 }
 567
 568 /***********************************************************************
 569  *      CryptCATGetCatAttrInfo  (WINTRUST.@)
 570  */
 571 CRYPTCATATTRIBUTE * WINAPI CryptCATGetCatAttrInfo(HANDLE hCatalog, LPWSTR tag)
 572 {
 573     struct cryptcat *cc = hCatalog;
 574
 575     FIXME("%p, %s\n", hCatalog, debugstr_w(tag));
 576
 577     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 578     {
 579         SetLastError(ERROR_INVALID_PARAMETER);
 580         return NULL;
 581     }
 582     SetLastError(CRYPT_E_NOT_FOUND);
 583     return NULL;
 584 }
 585
 586 CRYPTCATMEMBER * WINAPI CryptCATGetMemberInfo(HANDLE hCatalog, LPWSTR tag)
 587 {
 588     struct cryptcat *cc = hCatalog;
 589
 590     FIXME("%p, %s\n", hCatalog, debugstr_w(tag));
 591
 592     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 593     {
 594         SetLastError(ERROR_INVALID_PARAMETER);
 595         return NULL;
 596     }
 597     SetLastError(CRYPT_E_NOT_FOUND);
 598     return NULL;
 599 }
 600
 601 /***********************************************************************
 602  *      CryptCATEnumerateAttr  (WINTRUST.@)
 603  */
 604 CRYPTCATATTRIBUTE * WINAPI CryptCATEnumerateAttr(HANDLE hCatalog, CRYPTCATMEMBER *member, CRYPTCATATTRIBUTE *prev)
 605 {
 606     struct cryptcat *cc = hCatalog;
 607
 608     FIXME("%p, %p, %p\n", hCatalog, member, prev);
 609
 610     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 611     {
 612         SetLastError(ERROR_INVALID_PARAMETER);
 613         return NULL;
 614     }
 615     SetLastError(CRYPT_E_NOT_FOUND);
 616     return NULL;
 617 }
 618
 619 /***********************************************************************
 620  *      CryptCATEnumerateCatAttr  (WINTRUST.@)
 621  */
 622 CRYPTCATATTRIBUTE * WINAPI CryptCATEnumerateCatAttr(HANDLE hCatalog, CRYPTCATATTRIBUTE *prev)
 623 {
 624     struct cryptcat *cc = hCatalog;
 625
 626     FIXME("%p, %p\n", hCatalog, prev);
 627
 628     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 629     {
 630         SetLastError(ERROR_INVALID_PARAMETER);
 631         return NULL;
 632     }
 633     SetLastError(CRYPT_E_NOT_FOUND);
 634     return NULL;
 635 }
 636
 637 /***********************************************************************
 638  *      CryptCATEnumerateMember  (WINTRUST.@)
 639  */
 640 CRYPTCATMEMBER * WINAPI CryptCATEnumerateMember(HANDLE hCatalog, CRYPTCATMEMBER *prev)
 641 {
 642     struct cryptcat *cc = hCatalog;
 643     CRYPTCATMEMBER *member = prev;
 644     CTL_ENTRY *entry;
 645     DWORD size, i;
 646
 647     TRACE("%p, %p\n", hCatalog, prev);
 648
 649     if (!hCatalog || hCatalog == INVALID_HANDLE_VALUE || cc->magic != CRYPTCAT_MAGIC)
 650     {
 651         SetLastError(ERROR_INVALID_PARAMETER);
 652         return NULL;
 653     }
 654
 655     /* dumping the contents makes me think that dwReserved is the iteration number */
 656     if (!member)
 657     {
 658         if (!(member = HeapAlloc(GetProcessHeap(), 0, sizeof(*member))))
 659         {
 660             SetLastError(ERROR_OUTOFMEMORY);
 661             return NULL;
 662         }
 663         member->cbStruct = sizeof(*member);
 664         member->pwszFileName = member->pwszReferenceTag = NULL;
 665         member->dwReserved = 0;
 666         member->hReserved = NULL;
 667         member->gSubjectType = cc->subject;
 668         member->fdwMemberFlags = 0;
 669         member->pIndirectData = NULL;
 670         member->dwCertVersion = cc->inner->dwVersion;
 671     }
 672     else member->dwReserved++;
 673
 674     if (member->dwReserved >= cc->inner->cCTLEntry)
 675     {
 676         SetLastError(ERROR_INVALID_PARAMETER);
 677         goto error;
 678     }
 679
 680     /* list them backwards, like native */
 681     entry = &cc->inner->rgCTLEntry[cc->inner->cCTLEntry - member->dwReserved - 1];
 682
 683     member->sEncodedIndirectData.cbData = member->sEncodedMemberInfo.cbData = 0;
 684     member->sEncodedIndirectData.pbData = member->sEncodedMemberInfo.pbData = NULL;
 685     HeapFree(GetProcessHeap(), 0, member->pIndirectData);
 686     member->pIndirectData = NULL;
 687
 688     for (i = 0; i < entry->cAttribute; i++)
 689     {
 690         CRYPT_ATTRIBUTE *attr = entry->rgAttribute + i;
 691
 692         if (attr->cValue != 1)
 693         {
 694             ERR("Can't handle attr->cValue of %u\n", attr->cValue);
 695             continue;
 696         }
 697         if (!strcmp(attr->pszObjId, CAT_MEMBERINFO_OBJID))
 698         {
 699             CAT_MEMBERINFO *mi;
 700             BOOL ret;
 701
 702             member->sEncodedMemberInfo.cbData = attr->rgValue->cbData;
 703             member->sEncodedMemberInfo.pbData = attr->rgValue->pbData;
 704
 705             CryptDecodeObject(cc->encoding, CAT_MEMBERINFO_OBJID, attr->rgValue->pbData, attr->rgValue->cbData, 0, NULL, &size);
 706
 707             if (!(mi = HeapAlloc(GetProcessHeap(), 0, size)))
 708             {
 709                 SetLastError(ERROR_OUTOFMEMORY);
 710                 goto error;
 711             }
 712             ret = CryptDecodeObject(cc->encoding, CAT_MEMBERINFO_OBJID, attr->rgValue->pbData, attr->rgValue->cbData, 0, mi, &size);
 713             if (ret)
 714             {
 715                 UNICODE_STRING guid;
 716
 717                 member->dwCertVersion = mi->dwCertVersion;
 718                 RtlInitUnicodeString(&guid, mi->pwszSubjGuid);
 719                 if (RtlGUIDFromString(&guid, &member->gSubjectType))
 720                 {
 721                     HeapFree(GetProcessHeap(), 0, mi);
 722                     goto error;
 723                 }
 724             }
 725             HeapFree(GetProcessHeap(), 0, mi);
 726             if (!ret) goto error;
 727         }
 728         else if (!strcmp(attr->pszObjId, SPC_INDIRECT_DATA_OBJID))
 729         {
 730             /* SPC_INDIRECT_DATA_CONTENT is equal to SIP_INDIRECT_DATA */
 731
 732             member->sEncodedIndirectData.cbData = attr->rgValue->cbData;
 733             member->sEncodedIndirectData.pbData = attr->rgValue->pbData;
 734
 735             CryptDecodeObject(cc->encoding, SPC_INDIRECT_DATA_OBJID, attr->rgValue->pbData, attr->rgValue->cbData, 0, NULL, &size);
 736
 737             if (!(member->pIndirectData = HeapAlloc(GetProcessHeap(), 0, size)))
 738             {
 739                 SetLastError(ERROR_OUTOFMEMORY);
 740                 goto error;
 741             }
 742             CryptDecodeObject(cc->encoding, SPC_INDIRECT_DATA_OBJID, attr->rgValue->pbData, attr->rgValue->cbData, 0, member->pIndirectData, &size);
 743         }
 744         else
 745             /* this object id should probably be handled in CryptCATEnumerateAttr */
 746             FIXME("unhandled object id \"%s\"\n", attr->pszObjId);
 747     }
 748
 749     if (!member->sEncodedMemberInfo.cbData || !member->sEncodedIndirectData.cbData)
 750     {
 751         ERR("Corrupted catalog entry?\n");
 752         SetLastError(CRYPT_E_ATTRIBUTES_MISSING);
 753         goto error;
 754     }
 755     size = (2 * member->pIndirectData->Digest.cbData + 1) * sizeof(WCHAR);
 756     if (member->pwszReferenceTag)
 757         member->pwszReferenceTag = HeapReAlloc(GetProcessHeap(), 0, member->pwszReferenceTag, size);
 758     else
 759         member->pwszReferenceTag = HeapAlloc(GetProcessHeap(), 0, size);
 760
 761     if (!member->pwszReferenceTag)
 762     {
 763         SetLastError(ERROR_OUTOFMEMORY);
 764         goto error;
 765     }
 766     /* FIXME: reference tag is usually the file hash but doesn't have to be */
 767     for (i = 0; i < member->pIndirectData->Digest.cbData; i++)
 768     {
 769         DWORD sub;
 770
 771         sub = member->pIndirectData->Digest.pbData[i] >> 4;
 772         member->pwszReferenceTag[i * 2] = (sub < 10 ? '0' + sub : 'A' + sub - 10);
 773         sub = member->pIndirectData->Digest.pbData[i] & 0xf;
 774         member->pwszReferenceTag[i * 2 + 1] = (sub < 10 ? '0' + sub : 'A' + sub - 10);
 775     }
 776     member->pwszReferenceTag[i * 2] = 0;
 777     return member;
 778
 779 error:
 780     HeapFree(GetProcessHeap(), 0, member->pIndirectData);
 781     HeapFree(GetProcessHeap(), 0, member->pwszReferenceTag);
 782     HeapFree(GetProcessHeap(), 0, member);
 783     return NULL;
 784 }
 785
 786 static CTL_INFO *decode_inner_content(HANDLE hmsg, DWORD encoding, DWORD *len)
 787 {
 788     DWORD size;
 789     LPSTR oid = NULL;
 790     BYTE *buffer = NULL;
 791     CTL_INFO *inner = NULL;
 792
 793     if (!CryptMsgGetParam(hmsg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, NULL, &size)) return NULL;
 794     if (!(oid = HeapAlloc(GetProcessHeap(), 0, size)))
 795     {
 796         SetLastError(ERROR_OUTOFMEMORY);
 797         return NULL;
 798     }
 799     if (!CryptMsgGetParam(hmsg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, oid, &size)) goto out;
 800     if (!CryptMsgGetParam(hmsg, CMSG_CONTENT_PARAM, 0, NULL, &size)) goto out;
 801     if (!(buffer = HeapAlloc(GetProcessHeap(), 0, size)))
 802     {
 803         SetLastError(ERROR_OUTOFMEMORY);
 804         goto out;
 805     }
 806     if (!CryptMsgGetParam(hmsg, CMSG_CONTENT_PARAM, 0, buffer, &size)) goto out;
 807     if (!CryptDecodeObject(encoding, oid, buffer, size, 0, NULL, &size)) goto out;
 808     if (!(inner = HeapAlloc(GetProcessHeap(), 0, size)))
 809     {
 810         SetLastError(ERROR_OUTOFMEMORY);
 811         goto out;
 812     }
 813     if (!CryptDecodeObject(encoding, oid, buffer, size, 0, inner, &size)) goto out;
 814     *len = size;
 815
 816 out:
 817     HeapFree(GetProcessHeap(), 0, oid);
 818     HeapFree(GetProcessHeap(), 0, buffer);
 819     return inner;
 820 }
 821
 822 /***********************************************************************
 823  *      CryptCATCatalogInfoFromContext  (WINTRUST.@)
 824  */
 825 BOOL WINAPI CryptCATCatalogInfoFromContext(HCATINFO hcatinfo, CATALOG_INFO *info, DWORD flags)
 826 {
 827     struct catinfo *ci = hcatinfo;
 828
 829     TRACE("%p, %p, %x\n", hcatinfo, info, flags);
 830
 831     if (!hcatinfo || hcatinfo == INVALID_HANDLE_VALUE || ci->magic != CATINFO_MAGIC ||
 832         flags || !info || info->cbStruct != sizeof(*info))
 833     {
 834         SetLastError(ERROR_INVALID_PARAMETER);
 835         return FALSE;
 836     }
 837     strcpyW(info->wszCatalogFile, ci->file);
 838     return TRUE;
 839 }
 840
 841 /***********************************************************************
 842  *      CryptCATOpen  (WINTRUST.@)
 843  */
 844 HANDLE WINAPI CryptCATOpen(LPWSTR pwszFileName, DWORD fdwOpenFlags, HCRYPTPROV hProv,
 845                            DWORD dwPublicVersion, DWORD dwEncodingType)
 846 {
 847     HANDLE file, hmsg;
 848     BYTE *buffer = NULL;
 849     DWORD size, flags = OPEN_EXISTING;
 850     struct cryptcat *cc;
 851
 852     TRACE("%s, %x, %lx, %x, %x\n", debugstr_w(pwszFileName), fdwOpenFlags,
 853           hProv, dwPublicVersion, dwEncodingType);
 854
 855     if (!pwszFileName)
 856     {
 857         SetLastError(ERROR_INVALID_PARAMETER);
 858         return INVALID_HANDLE_VALUE;
 859     }
 860
 861     if (!dwEncodingType)  dwEncodingType  = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
 862
 863     if (fdwOpenFlags & CRYPTCAT_OPEN_ALWAYS)    flags |= OPEN_ALWAYS;
 864     if (fdwOpenFlags & CRYPTCAT_OPEN_CREATENEW) flags |= CREATE_NEW;
 865
 866     file = CreateFileW(pwszFileName, GENERIC_READ, FILE_SHARE_READ, NULL, flags, 0, NULL);
 867     if (file == INVALID_HANDLE_VALUE) return INVALID_HANDLE_VALUE;
 868
 869     size = GetFileSize(file, NULL);
 870     if (!(buffer = HeapAlloc(GetProcessHeap(), 0, size)))
 871     {
 872         CloseHandle(file);
 873         SetLastError(ERROR_OUTOFMEMORY);
 874         return INVALID_HANDLE_VALUE;
 875     }
 876     if (!(hmsg = CryptMsgOpenToDecode(dwEncodingType, 0, 0, hProv, NULL, NULL)))
 877     {
 878         CloseHandle(file);
 879         HeapFree(GetProcessHeap(), 0, buffer);
 880         return INVALID_HANDLE_VALUE;
 881     }
 882     if (!ReadFile(file, buffer, size, &size, NULL) || !CryptMsgUpdate(hmsg, buffer, size, TRUE))
 883     {
 884         CloseHandle(file);
 885         HeapFree(GetProcessHeap(), 0, buffer);
 886         CryptMsgClose(hmsg);
 887         return INVALID_HANDLE_VALUE;
 888     }
 889     HeapFree(GetProcessHeap(), 0, buffer);
 890     CloseHandle(file);
 891
 892     size = sizeof(DWORD);
 893     if (!(cc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*cc))))
 894     {
 895         CryptMsgClose(hmsg);
 896         SetLastError(ERROR_OUTOFMEMORY);
 897         return INVALID_HANDLE_VALUE;
 898     }
 899
 900     cc->msg = hmsg;
 901     cc->encoding = dwEncodingType;
 902     if (CryptMsgGetParam(hmsg, CMSG_ATTR_CERT_COUNT_PARAM, 0, &cc->attr_count, &size))
 903     {
 904         DWORD i, sum = 0;
 905         BYTE *p;
 906
 907         for (i = 0; i < cc->attr_count; i++)
 908         {
 909             if (!CryptMsgGetParam(hmsg, CMSG_ATTR_CERT_PARAM, i, NULL, &size))
 910             {
 911                 CryptMsgClose(hmsg);
 912                 return INVALID_HANDLE_VALUE;
 913             }
 914             sum += size;
 915         }
 916         if (!(cc->attr = HeapAlloc(GetProcessHeap(), 0, sizeof(*cc->attr) * cc->attr_count + sum)))
 917         {
 918             CryptMsgClose(hmsg);
 919             SetLastError(ERROR_OUTOFMEMORY);
 920             return INVALID_HANDLE_VALUE;
 921         }
 922         p = (BYTE *)(cc->attr + cc->attr_count);
 923         for (i = 0; i < cc->attr_count; i++)
 924         {
 925             if (!CryptMsgGetParam(hmsg, CMSG_ATTR_CERT_PARAM, i, NULL, &size))
 926             {
 927                 CryptMsgClose(hmsg);
 928                 HeapFree(GetProcessHeap(), 0, cc->attr);
 929                 return INVALID_HANDLE_VALUE;
 930             }
 931             if (!CryptMsgGetParam(hmsg, CMSG_ATTR_CERT_PARAM, i, p, &size))
 932             {
 933                 CryptMsgClose(hmsg);
 934                 HeapFree(GetProcessHeap(), 0, cc->attr);
 935                 return INVALID_HANDLE_VALUE;
 936             }
 937             p += size;
 938         }
 939         cc->inner = decode_inner_content(hmsg, dwEncodingType, &cc->inner_len);
 940         if (!cc->inner || !CryptSIPRetrieveSubjectGuid(pwszFileName, NULL, &cc->subject))
 941         {
 942             CryptMsgClose(hmsg);
 943             HeapFree(GetProcessHeap(), 0, cc->attr);
 944             HeapFree(GetProcessHeap(), 0, cc->inner);
 945             HeapFree(GetProcessHeap(), 0, cc);
 946             return INVALID_HANDLE_VALUE;
 947         }
 948         cc->magic = CRYPTCAT_MAGIC;
 949         return cc;
 950     }
 951     return INVALID_HANDLE_VALUE;
 952 }
 953
 954 /***********************************************************************
 955  *      CryptSIPCreateIndirectData  (WINTRUST.@)
 956  */
 957 BOOL WINAPI CryptSIPCreateIndirectData(SIP_SUBJECTINFO* pSubjectInfo, DWORD* pcbIndirectData,
 958                                        SIP_INDIRECT_DATA* pIndirectData)
 959 {
 960     FIXME("(%p %p %p) stub\n", pSubjectInfo, pcbIndirectData, pIndirectData);
 961
 962     return FALSE;
 963 }
 964
 965
 966 /***********************************************************************
 967  *      CryptCATCDFClose  (WINTRUST.@)
 968  */
 969 BOOL WINAPI CryptCATCDFClose(CRYPTCATCDF *pCDF)
 970 {
 971     FIXME("(%p) stub\n", pCDF);
 972
 973     return FALSE;
 974 }
 975
 976 /***********************************************************************
 977  *      CryptCATCDFEnumCatAttributes  (WINTRUST.@)
 978  */
 979 CRYPTCATATTRIBUTE * WINAPI CryptCATCDFEnumCatAttributes(CRYPTCATCDF *pCDF,
 980                                                         CRYPTCATATTRIBUTE *pPrevAttr,
 981                                                         PFN_CDF_PARSE_ERROR_CALLBACK pfnParseError)
 982 {
 983     FIXME("(%p %p %p) stub\n", pCDF, pPrevAttr, pfnParseError);
 984
 985     return NULL;
 986 }
 987
 988 /***********************************************************************
 989  *      CryptCATCDFEnumMembersByCDFTagEx  (WINTRUST.@)
 990  */
 991 LPWSTR WINAPI CryptCATCDFEnumMembersByCDFTagEx(CRYPTCATCDF *pCDF, LPWSTR pwszPrevCDFTag,
 992                                                PFN_CDF_PARSE_ERROR_CALLBACK pfnParseError,
 993                                                CRYPTCATMEMBER **ppMember, BOOL fContinueOnError,
 994                                                LPVOID pvReserved)
 995 {
 996     FIXME("(%p %s %p %p %d %p) stub\n", pCDF, debugstr_w(pwszPrevCDFTag), pfnParseError,
 997           ppMember, fContinueOnError, pvReserved);
 998
 999     return NULL;
1000 }
1001
1002 /***********************************************************************
1003  *      CryptCATCDFOpen  (WINTRUST.@)
1004  */
1005 CRYPTCATCDF * WINAPI CryptCATCDFOpen(LPWSTR pwszFilePath,
1006                                      PFN_CDF_PARSE_ERROR_CALLBACK pfnParseError)
1007 {
1008     FIXME("(%s %p) stub\n", debugstr_w(pwszFilePath), pfnParseError);
1009
1010     return NULL;
1011 }
1012
1013 static BOOL WINTRUST_GetSignedMsgFromPEFile(SIP_SUBJECTINFO *pSubjectInfo,
1014  DWORD *pdwEncodingType, DWORD dwIndex, DWORD *pcbSignedDataMsg,
1015  BYTE *pbSignedDataMsg)
1016 {
1017     BOOL ret;
1018     WIN_CERTIFICATE *pCert = NULL;
1019
1020     TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
1021           pcbSignedDataMsg, pbSignedDataMsg);
1022
1023     if (!pbSignedDataMsg)
1024     {
1025         WIN_CERTIFICATE cert;
1026
1027         /* app hasn't passed buffer, just get the length */
1028         ret = ImageGetCertificateHeader(pSubjectInfo->hFile, dwIndex, &cert);
1029         if (ret)
1030         {
1031             switch (cert.wCertificateType)
1032             {
1033             case WIN_CERT_TYPE_X509:
1034             case WIN_CERT_TYPE_PKCS_SIGNED_DATA:
1035                 *pcbSignedDataMsg = cert.dwLength;
1036                 break;
1037             default:
1038                 WARN("unknown certificate type %d\n", cert.wCertificateType);
1039                 ret = FALSE;
1040             }
1041         }
1042     }
1043     else
1044     {
1045         DWORD len = 0;
1046
1047         ret = ImageGetCertificateData(pSubjectInfo->hFile, dwIndex, NULL, &len);
1048         if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
1049             goto error;
1050         pCert = HeapAlloc(GetProcessHeap(), 0, len);
1051         if (!pCert)
1052         {
1053             ret = FALSE;
1054             goto error;
1055         }
1056         ret = ImageGetCertificateData(pSubjectInfo->hFile, dwIndex, pCert,
1057          &len);
1058         if (!ret)
1059             goto error;
1060         if (*pcbSignedDataMsg < pCert->dwLength)
1061         {
1062             *pcbSignedDataMsg = pCert->dwLength;
1063             SetLastError(ERROR_INSUFFICIENT_BUFFER);
1064             ret = FALSE;
1065         }
1066         else
1067         {
1068             memcpy(pbSignedDataMsg, pCert->bCertificate, pCert->dwLength);
1069             switch (pCert->wCertificateType)
1070             {
1071             case WIN_CERT_TYPE_X509:
1072                 *pdwEncodingType = X509_ASN_ENCODING;
1073                 break;
1074             case WIN_CERT_TYPE_PKCS_SIGNED_DATA:
1075                 *pdwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
1076                 break;
1077             default:
1078                 WARN("don't know what to do for encoding type %d\n",
1079                  pCert->wCertificateType);
1080                 *pdwEncodingType = 0;
1081                 ret = FALSE;
1082             }
1083         }
1084     }
1085 error:
1086     HeapFree(GetProcessHeap(), 0, pCert);
1087     return ret;
1088 }
1089
1090 /* structure offsets */
1091 #define cfhead_Signature         (0x00)
1092 #define cfhead_CabinetSize       (0x08)
1093 #define cfhead_MinorVersion      (0x18)
1094 #define cfhead_MajorVersion      (0x19)
1095 #define cfhead_Flags             (0x1E)
1096 #define cfhead_SIZEOF            (0x24)
1097 #define cfheadext_HeaderReserved (0x00)
1098 #define cfheadext_SIZEOF         (0x04)
1099 #define cfsigninfo_CertOffset    (0x04)
1100 #define cfsigninfo_CertSize      (0x08)
1101 #define cfsigninfo_SIZEOF        (0x0C)
1102
1103 /* flags */
1104 #define cfheadRESERVE_PRESENT          (0x0004)
1105
1106 /* endian-neutral reading of little-endian data */
1107 #define EndGetI32(a)  ((((a)[3])<<24)|(((a)[2])<<16)|(((a)[1])<<8)|((a)[0]))
1108 #define EndGetI16(a)  ((((a)[1])<<8)|((a)[0]))
1109
1110 /* For documentation purposes only:  this is the structure in the reserved
1111  * area of a signed cabinet file.  The cert offset indicates where in the
1112  * cabinet file the signature resides, and the count indicates its size.
1113  */
1114 typedef struct _CAB_SIGNINFO
1115 {
1116     WORD unk0; /* always 0? */
1117     WORD unk1; /* always 0x0010? */
1118     DWORD dwCertOffset;
1119     DWORD cbCertBlock;
1120 } CAB_SIGNINFO, *PCAB_SIGNINFO;
1121
1122 static BOOL WINTRUST_GetSignedMsgFromCabFile(SIP_SUBJECTINFO *pSubjectInfo,
1123  DWORD *pdwEncodingType, DWORD dwIndex, DWORD *pcbSignedDataMsg,
1124  BYTE *pbSignedDataMsg)
1125 {
1126     int header_resv;
1127     LONG base_offset, cabsize;
1128     USHORT flags;
1129     BYTE buf[64];
1130     DWORD cert_offset, cert_size, dwRead;
1131
1132     TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
1133           pcbSignedDataMsg, pbSignedDataMsg);
1134
1135     /* get basic offset & size info */
1136     base_offset = SetFilePointer(pSubjectInfo->hFile, 0L, NULL, SEEK_CUR);
1137
1138     if (SetFilePointer(pSubjectInfo->hFile, 0, NULL, SEEK_END) == INVALID_SET_FILE_POINTER)
1139     {
1140         TRACE("seek error\n");
1141         return FALSE;
1142     }
1143
1144     cabsize = SetFilePointer(pSubjectInfo->hFile, 0L, NULL, SEEK_CUR);
1145     if ((cabsize == -1) || (base_offset == -1) ||
1146      (SetFilePointer(pSubjectInfo->hFile, 0, NULL, SEEK_SET) == INVALID_SET_FILE_POINTER))
1147     {
1148         TRACE("seek error\n");
1149         return FALSE;
1150     }
1151
1152     /* read in the CFHEADER */
1153     if (!ReadFile(pSubjectInfo->hFile, buf, cfhead_SIZEOF, &dwRead, NULL) ||
1154      dwRead != cfhead_SIZEOF)
1155     {
1156         TRACE("reading header failed\n");
1157         return FALSE;
1158     }
1159
1160     /* check basic MSCF signature */
1161     if (EndGetI32(buf+cfhead_Signature) != 0x4643534d)
1162     {
1163         WARN("cabinet signature not present\n");
1164         return FALSE;
1165     }
1166
1167     /* Ignore the number of folders and files and the set and cabinet IDs */
1168
1169     /* check the header revision */
1170     if ((buf[cfhead_MajorVersion] > 1) ||
1171         (buf[cfhead_MajorVersion] == 1 && buf[cfhead_MinorVersion] > 3))
1172     {
1173         WARN("cabinet format version > 1.3\n");
1174         return FALSE;
1175     }
1176
1177     /* pull the flags out */
1178     flags = EndGetI16(buf+cfhead_Flags);
1179
1180     if (!(flags & cfheadRESERVE_PRESENT))
1181     {
1182         TRACE("no header present, not signed\n");
1183         return FALSE;
1184     }
1185
1186     if (!ReadFile(pSubjectInfo->hFile, buf, cfheadext_SIZEOF, &dwRead, NULL) ||
1187      dwRead != cfheadext_SIZEOF)
1188     {
1189         ERR("bunk reserve-sizes?\n");
1190         return FALSE;
1191     }
1192
1193     header_resv = EndGetI16(buf+cfheadext_HeaderReserved);
1194     if (!header_resv)
1195     {
1196         TRACE("no header_resv, not signed\n");
1197         return FALSE;
1198     }
1199     else if (header_resv < cfsigninfo_SIZEOF)
1200     {
1201         TRACE("header_resv too small, not signed\n");
1202         return FALSE;
1203     }
1204
1205     if (header_resv > 60000)
1206     {
1207         WARN("WARNING; header reserved space > 60000\n");
1208     }
1209
1210     if (!ReadFile(pSubjectInfo->hFile, buf, cfsigninfo_SIZEOF, &dwRead, NULL) ||
1211      dwRead != cfsigninfo_SIZEOF)
1212     {
1213         ERR("couldn't read reserve\n");
1214         return FALSE;
1215     }
1216
1217     cert_offset = EndGetI32(buf+cfsigninfo_CertOffset);
1218     TRACE("cert_offset: %d\n", cert_offset);
1219     cert_size = EndGetI32(buf+cfsigninfo_CertSize);
1220     TRACE("cert_size: %d\n", cert_size);
1221
1222     /* The redundant checks are to avoid wraparound */
1223     if (cert_offset > cabsize || cert_size > cabsize ||
1224      cert_offset + cert_size > cabsize)
1225     {
1226         WARN("offset beyond file, not attempting to read\n");
1227         return FALSE;
1228     }
1229
1230     SetFilePointer(pSubjectInfo->hFile, base_offset, NULL, SEEK_SET);
1231     if (!pbSignedDataMsg)
1232     {
1233         *pcbSignedDataMsg = cert_size;
1234         return TRUE;
1235     }
1236     if (*pcbSignedDataMsg < cert_size)
1237     {
1238         *pcbSignedDataMsg = cert_size;
1239         SetLastError(ERROR_INSUFFICIENT_BUFFER);
1240         return FALSE;
1241     }
1242     if (SetFilePointer(pSubjectInfo->hFile, cert_offset, NULL, SEEK_SET) == INVALID_SET_FILE_POINTER)
1243     {
1244         ERR("couldn't seek to cert location\n");
1245         return FALSE;
1246     }
1247     if (!ReadFile(pSubjectInfo->hFile, pbSignedDataMsg, cert_size, &dwRead,
1248      NULL) || dwRead != cert_size)
1249     {
1250         ERR("couldn't read cert\n");
1251         SetFilePointer(pSubjectInfo->hFile, base_offset, NULL, SEEK_SET);
1252         return FALSE;
1253     }
1254     /* The encoding of the files I've seen appears to be in ASN.1
1255      * format, and there isn't a field indicating the type, so assume it
1256      * always is.
1257      */
1258     *pdwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
1259     /* Restore base offset */
1260     SetFilePointer(pSubjectInfo->hFile, base_offset, NULL, SEEK_SET);
1261     return TRUE;
1262 }
1263
1264 static BOOL WINTRUST_GetSignedMsgFromCatFile(SIP_SUBJECTINFO *pSubjectInfo,
1265  DWORD *pdwEncodingType, DWORD dwIndex, DWORD *pcbSignedDataMsg,
1266  BYTE *pbSignedDataMsg)
1267 {
1268     BOOL ret;
1269
1270     TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
1271           pcbSignedDataMsg, pbSignedDataMsg);
1272
1273     if (!pbSignedDataMsg)
1274     {
1275         *pcbSignedDataMsg = GetFileSize(pSubjectInfo->hFile, NULL);
1276          ret = TRUE;
1277     }
1278     else
1279     {
1280         DWORD len = GetFileSize(pSubjectInfo->hFile, NULL);
1281
1282         if (*pcbSignedDataMsg < len)
1283         {
1284             *pcbSignedDataMsg = len;
1285             SetLastError(ERROR_INSUFFICIENT_BUFFER);
1286             ret = FALSE;
1287         }
1288         else
1289         {
1290             ret = ReadFile(pSubjectInfo->hFile, pbSignedDataMsg, len,
1291              pcbSignedDataMsg, NULL);
1292             if (ret)
1293                 *pdwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
1294         }
1295     }
1296     return ret;
1297 }
1298
1299 /***********************************************************************
1300  *      CryptSIPGetSignedDataMsg  (WINTRUST.@)
1301  */
1302 BOOL WINAPI CryptSIPGetSignedDataMsg(SIP_SUBJECTINFO* pSubjectInfo, DWORD* pdwEncodingType,
1303                                        DWORD dwIndex, DWORD* pcbSignedDataMsg, BYTE* pbSignedDataMsg)
1304 {
1305     static const GUID unknown = { 0xC689AAB8, 0x8E78, 0x11D0, { 0x8C,0x47,
1306      0x00,0xC0,0x4F,0xC2,0x95,0xEE } };
1307     static const GUID cabGUID = { 0xC689AABA, 0x8E78, 0x11D0, { 0x8C,0x47,
1308      0x00,0xC0,0x4F,0xC2,0x95,0xEE } };
1309     static const GUID catGUID = { 0xDE351A43, 0x8E59, 0x11D0, { 0x8C,0x47,
1310      0x00,0xC0,0x4F,0xC2,0x95,0xEE }};
1311     BOOL ret;
1312
1313     TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
1314           pcbSignedDataMsg, pbSignedDataMsg);
1315
1316     if (!memcmp(pSubjectInfo->pgSubjectType, &unknown, sizeof(unknown)))
1317         ret = WINTRUST_GetSignedMsgFromPEFile(pSubjectInfo, pdwEncodingType,
1318          dwIndex, pcbSignedDataMsg, pbSignedDataMsg);
1319     else if (!memcmp(pSubjectInfo->pgSubjectType, &cabGUID, sizeof(cabGUID)))
1320         ret = WINTRUST_GetSignedMsgFromCabFile(pSubjectInfo, pdwEncodingType,
1321          dwIndex, pcbSignedDataMsg, pbSignedDataMsg);
1322     else if (!memcmp(pSubjectInfo->pgSubjectType, &catGUID, sizeof(catGUID)))
1323         ret = WINTRUST_GetSignedMsgFromCatFile(pSubjectInfo, pdwEncodingType,
1324          dwIndex, pcbSignedDataMsg, pbSignedDataMsg);
1325     else
1326     {
1327         FIXME("unimplemented for subject type %s\n",
1328          debugstr_guid(pSubjectInfo->pgSubjectType));
1329         ret = FALSE;
1330     }
1331
1332     TRACE("returning %d\n", ret);
1333     return ret;
1334 }
1335
1336 /***********************************************************************
1337  *      CryptSIPPutSignedDataMsg  (WINTRUST.@)
1338  */
1339 BOOL WINAPI CryptSIPPutSignedDataMsg(SIP_SUBJECTINFO* pSubjectInfo, DWORD pdwEncodingType,
1340                                        DWORD* pdwIndex, DWORD cbSignedDataMsg, BYTE* pbSignedDataMsg)
1341 {
1342     FIXME("(%p %d %p %d %p) stub\n", pSubjectInfo, pdwEncodingType, pdwIndex,
1343           cbSignedDataMsg, pbSignedDataMsg);
1344
1345     return FALSE;
1346 }
1347
1348 /***********************************************************************
1349  *      CryptSIPRemoveSignedDataMsg  (WINTRUST.@)
1350  */
1351 BOOL WINAPI CryptSIPRemoveSignedDataMsg(SIP_SUBJECTINFO* pSubjectInfo,
1352                                        DWORD dwIndex)
1353 {
1354     FIXME("(%p %d) stub\n", pSubjectInfo, dwIndex);
1355
1356     return FALSE;
1357 }
1358
1359 /***********************************************************************
1360  *      CryptSIPVerifyIndirectData  (WINTRUST.@)
1361  */
1362 BOOL WINAPI CryptSIPVerifyIndirectData(SIP_SUBJECTINFO* pSubjectInfo,
1363                                        SIP_INDIRECT_DATA* pIndirectData)
1364 {
1365     FIXME("(%p %p) stub\n", pSubjectInfo, pIndirectData);
1366
1367     return FALSE;
1368 }