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   1 /*
   2  *      Security functions
   3  *
   4  *      Copyright 1996-1998 Marcus Meissner
   5  */
   6
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <time.h>
  10 #include <ctype.h>
  11 #include <math.h>
  12 #include "windef.h"
  13 #include "winbase.h"
  14 #include "wingdi.h"
  15 #include "winuser.h"
  16 #include "wine/winestring.h"
  17 #include "file.h"
  18 #include "heap.h"
  19 #include "winnls.h"
  20 #include "debugtools.h"
  21 #include "winerror.h"
  22 #include "stackframe.h"
  23
  24 #include "ntddk.h"
  25 #include "winreg.h"
  26 #include "ntdll_misc.h"
  27
  28 DEFAULT_DEBUG_CHANNEL(ntdll);
  29
  30 #define NT_SUCCESS(status) (status == STATUS_SUCCESS)
  31
  32 /*
  33  *      SID FUNCTIONS
  34  */
  35
  36 /******************************************************************************
  37  *  RtlAllocateAndInitializeSid         [NTDLL.265]
  38  *
  39  */
  40 BOOLEAN WINAPI RtlAllocateAndInitializeSid (
  41         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
  42         BYTE nSubAuthorityCount,
  43         DWORD nSubAuthority0, DWORD nSubAuthority1,
  44         DWORD nSubAuthority2, DWORD nSubAuthority3,
  45         DWORD nSubAuthority4, DWORD nSubAuthority5,
  46         DWORD nSubAuthority6, DWORD nSubAuthority7,
  47         PSID *pSid )
  48 {
  49         TRACE("(%p, 0x%04x,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,%p)\n",
  50                 pIdentifierAuthority,nSubAuthorityCount,
  51                 nSubAuthority0, nSubAuthority1, nSubAuthority2, nSubAuthority3,
  52                 nSubAuthority4, nSubAuthority5, nSubAuthority6, nSubAuthority7, pSid);
  53
  54         if (!(*pSid = HeapAlloc( GetProcessHeap(), 0, RtlLengthRequiredSid(nSubAuthorityCount))))
  55           return FALSE;
  56
  57         (*pSid)->Revision = SID_REVISION;
  58
  59         if (pIdentifierAuthority)
  60           memcpy(&(*pSid)->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
  61         *GetSidSubAuthorityCount(*pSid) = nSubAuthorityCount;
  62
  63         if (nSubAuthorityCount > 0)
  64           *GetSidSubAuthority(*pSid, 0) = nSubAuthority0;
  65         if (nSubAuthorityCount > 1)
  66           *GetSidSubAuthority(*pSid, 1) = nSubAuthority1;
  67         if (nSubAuthorityCount > 2)
  68           *GetSidSubAuthority(*pSid, 2) = nSubAuthority2;
  69         if (nSubAuthorityCount > 3)
  70           *GetSidSubAuthority(*pSid, 3) = nSubAuthority3;
  71         if (nSubAuthorityCount > 4)
  72           *GetSidSubAuthority(*pSid, 4) = nSubAuthority4;
  73         if (nSubAuthorityCount > 5)
  74           *GetSidSubAuthority(*pSid, 5) = nSubAuthority5;
  75         if (nSubAuthorityCount > 6)
  76           *GetSidSubAuthority(*pSid, 6) = nSubAuthority6;
  77         if (nSubAuthorityCount > 7)
  78           *GetSidSubAuthority(*pSid, 7) = nSubAuthority7;
  79
  80         return STATUS_SUCCESS;
  81 }
  82 /******************************************************************************
  83  *  RtlEqualSid         [NTDLL.352]
  84  *
  85  */
  86 BOOL WINAPI RtlEqualSid( PSID pSid1, PSID pSid2 )
  87 {
  88     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
  89         return FALSE;
  90
  91     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
  92         return FALSE;
  93
  94     if (memcmp(pSid1, pSid2, GetLengthSid(pSid1)) != 0)
  95         return FALSE;
  96
  97     return TRUE;
  98 }
  99
 100 /******************************************************************************
 101  * RtlEqualPrefixSid    [ntdll.]
 102  */
 103 BOOL WINAPI RtlEqualPrefixSid (PSID pSid1, PSID pSid2)
 104 {
 105     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
 106         return FALSE;
 107
 108     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
 109         return FALSE;
 110
 111     if (memcmp(pSid1, pSid2, RtlLengthRequiredSid(pSid1->SubAuthorityCount - 1)) != 0)
 112         return FALSE;
 113
 114     return TRUE;
 115 }
 116
 117
 118 /******************************************************************************
 119  *  RtlFreeSid          [NTDLL.376]
 120  */
 121 DWORD WINAPI RtlFreeSid(PSID pSid)
 122 {
 123         TRACE("(%p)\n", pSid);
 124         HeapFree( GetProcessHeap(), 0, pSid );
 125         return STATUS_SUCCESS;
 126 }
 127
 128 /**************************************************************************
 129  * RtlLengthRequiredSid [NTDLL.427]
 130  *
 131  * PARAMS
 132  *   nSubAuthorityCount []
 133  */
 134 DWORD WINAPI RtlLengthRequiredSid(DWORD nrofsubauths)
 135 {
 136         return (nrofsubauths-1)*sizeof(DWORD) + sizeof(SID);
 137 }
 138
 139 /**************************************************************************
 140  *                 RtlLengthSid                         [NTDLL.429]
 141  */
 142 DWORD WINAPI RtlLengthSid(PSID pSid)
 143 {
 144         TRACE("sid=%p\n",pSid);
 145         if (!pSid) return 0;
 146         return RtlLengthRequiredSid(*RtlSubAuthorityCountSid(pSid));
 147 }
 148
 149 /**************************************************************************
 150  *                 RtlInitializeSid                     [NTDLL.410]
 151  */
 152 BOOL WINAPI RtlInitializeSid(
 153         PSID pSid,
 154         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
 155         BYTE nSubAuthorityCount)
 156 {
 157         int i;
 158         if (nSubAuthorityCount >= SID_MAX_SUB_AUTHORITIES)
 159           return FALSE;
 160
 161         pSid->Revision = SID_REVISION;
 162         pSid->SubAuthorityCount = nSubAuthorityCount;
 163         if (pIdentifierAuthority)
 164           memcpy(&pSid->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
 165
 166         for (i = 0; i < nSubAuthorityCount; i++)
 167           *GetSidSubAuthority(pSid, i) = 0;
 168
 169         return TRUE;
 170 }
 171
 172 /**************************************************************************
 173  *                 RtlSubAuthoritySid                   [NTDLL.497]
 174  *
 175  * PARAMS
 176  *   pSid          []
 177  *   nSubAuthority []
 178  */
 179 LPDWORD WINAPI RtlSubAuthoritySid( PSID pSid, DWORD nSubAuthority )
 180 {
 181         return &(pSid->SubAuthority[nSubAuthority]);
 182 }
 183
 184 /**************************************************************************
 185  * RtlIdentifierAuthoritySid    [NTDLL.395]
 186  *
 187  * PARAMS
 188  *   pSid []
 189  */
 190 PSID_IDENTIFIER_AUTHORITY WINAPI RtlIdentifierAuthoritySid( PSID pSid )
 191 {
 192         return &(pSid->IdentifierAuthority);
 193 }
 194
 195 /**************************************************************************
 196  *                 RtlSubAuthorityCountSid              [NTDLL.496]
 197  *
 198  * PARAMS
 199  *   pSid          []
 200  *   nSubAuthority []
 201  */
 202 LPBYTE WINAPI RtlSubAuthorityCountSid(PSID pSid)
 203 {
 204         return &(pSid->SubAuthorityCount);
 205 }
 206
 207 /**************************************************************************
 208  *                 RtlCopySid                           [NTDLL.302]
 209  */
 210 DWORD WINAPI RtlCopySid( DWORD nDestinationSidLength, PSID pDestinationSid, PSID pSourceSid )
 211 {
 212         if (!pSourceSid || !RtlValidSid(pSourceSid) ||
 213             (nDestinationSidLength < RtlLengthSid(pSourceSid)))
 214           return FALSE;
 215
 216         if (nDestinationSidLength < (pSourceSid->SubAuthorityCount*4+8))
 217           return FALSE;
 218
 219         memmove(pDestinationSid, pSourceSid, pSourceSid->SubAuthorityCount*4+8);
 220         return TRUE;
 221 }
 222 /******************************************************************************
 223  * RtlValidSid [NTDLL.532]
 224  *
 225  * PARAMS
 226  *   pSid []
 227  */
 228 BOOL WINAPI
 229 RtlValidSid( PSID pSid )
 230 {
 231     if (IsBadReadPtr(pSid, 4))
 232     {
 233         WARN("(%p): invalid pointer!\n", pSid);
 234         return FALSE;
 235     }
 236
 237     if (pSid->SubAuthorityCount > SID_MAX_SUB_AUTHORITIES)
 238         return FALSE;
 239
 240     if (!pSid || pSid->Revision != SID_REVISION)
 241         return FALSE;
 242
 243     return TRUE;
 244 }
 245
 246
 247 /*
 248  *      security descriptor functions
 249  */
 250
 251 /**************************************************************************
 252  * RtlCreateSecurityDescriptor                  [NTDLL.313]
 253  *
 254  * RETURNS:
 255  *  0 success,
 256  *  STATUS_INVALID_OWNER, STATUS_PRIVILEGE_NOT_HELD, STATUS_NO_INHERITANCE,
 257  *  STATUS_NO_MEMORY
 258  */
 259 NTSTATUS WINAPI RtlCreateSecurityDescriptor(
 260         PSECURITY_DESCRIPTOR lpsd,
 261         DWORD rev)
 262 {
 263         if (rev!=SECURITY_DESCRIPTOR_REVISION)
 264                 return STATUS_UNKNOWN_REVISION;
 265         memset(lpsd,'\0',sizeof(*lpsd));
 266         lpsd->Revision = SECURITY_DESCRIPTOR_REVISION;
 267         return STATUS_SUCCESS;
 268 }
 269 /**************************************************************************
 270  * RtlValidSecurityDescriptor                   [NTDLL.313]
 271  *
 272  */
 273 NTSTATUS WINAPI RtlValidSecurityDescriptor(
 274         PSECURITY_DESCRIPTOR SecurityDescriptor)
 275 {
 276         if ( ! SecurityDescriptor )
 277                 return STATUS_INVALID_SECURITY_DESCR;
 278         if ( SecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION )
 279                 return STATUS_UNKNOWN_REVISION;
 280
 281         return STATUS_SUCCESS;
 282 }
 283
 284 /**************************************************************************
 285  *  RtlLengthSecurityDescriptor                 [NTDLL]
 286  */
 287 ULONG WINAPI RtlLengthSecurityDescriptor(
 288         PSECURITY_DESCRIPTOR SecurityDescriptor)
 289 {
 290         ULONG Size;
 291         Size = SECURITY_DESCRIPTOR_MIN_LENGTH;
 292         if ( SecurityDescriptor == NULL )
 293                 return 0;
 294
 295         if ( SecurityDescriptor->Owner != NULL )
 296                 Size += SecurityDescriptor->Owner->SubAuthorityCount;
 297         if ( SecurityDescriptor->Group != NULL )
 298                 Size += SecurityDescriptor->Group->SubAuthorityCount;
 299
 300
 301         if ( SecurityDescriptor->Sacl != NULL )
 302                 Size += SecurityDescriptor->Sacl->AclSize;
 303         if ( SecurityDescriptor->Dacl != NULL )
 304                 Size += SecurityDescriptor->Dacl->AclSize;
 305
 306         return Size;
 307 }
 308
 309 /******************************************************************************
 310  *  RtlGetDaclSecurityDescriptor                [NTDLL]
 311  *
 312  */
 313 NTSTATUS WINAPI RtlGetDaclSecurityDescriptor(
 314         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 315         OUT PBOOLEAN lpbDaclPresent,
 316         OUT PACL *pDacl,
 317         OUT PBOOLEAN lpbDaclDefaulted)
 318 {
 319         TRACE("(%p,%p,%p,%p)\n",
 320         pSecurityDescriptor, lpbDaclPresent, *pDacl, lpbDaclDefaulted);
 321
 322         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 323           return STATUS_UNKNOWN_REVISION ;
 324
 325         if ( (*lpbDaclPresent = (SE_DACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 326         {
 327           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 328           { *pDacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Dacl);
 329           }
 330           else
 331           { *pDacl = pSecurityDescriptor->Dacl;
 332           }
 333         }
 334
 335         *lpbDaclDefaulted = (( SE_DACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 336
 337         return STATUS_SUCCESS;
 338 }
 339
 340 /**************************************************************************
 341  *  RtlSetDaclSecurityDescriptor                [NTDLL.483]
 342  */
 343 NTSTATUS WINAPI RtlSetDaclSecurityDescriptor (
 344         PSECURITY_DESCRIPTOR lpsd,
 345         BOOLEAN daclpresent,
 346         PACL dacl,
 347         BOOLEAN dacldefaulted )
 348 {
 349         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 350                 return STATUS_UNKNOWN_REVISION;
 351         if (lpsd->Control & SE_SELF_RELATIVE)
 352                 return STATUS_INVALID_SECURITY_DESCR;
 353
 354         if (!daclpresent)
 355         {       lpsd->Control &= ~SE_DACL_PRESENT;
 356                 return TRUE;
 357         }
 358
 359         lpsd->Control |= SE_DACL_PRESENT;
 360         lpsd->Dacl = dacl;
 361
 362         if (dacldefaulted)
 363                 lpsd->Control |= SE_DACL_DEFAULTED;
 364         else
 365                 lpsd->Control &= ~SE_DACL_DEFAULTED;
 366
 367         return STATUS_SUCCESS;
 368 }
 369
 370 /******************************************************************************
 371  *  RtlGetSaclSecurityDescriptor                [NTDLL]
 372  *
 373  */
 374 NTSTATUS WINAPI RtlGetSaclSecurityDescriptor(
 375         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 376         OUT PBOOLEAN lpbSaclPresent,
 377         OUT PACL *pSacl,
 378         OUT PBOOLEAN lpbSaclDefaulted)
 379 {
 380         TRACE("(%p,%p,%p,%p)\n",
 381         pSecurityDescriptor, lpbSaclPresent, *pSacl, lpbSaclDefaulted);
 382
 383         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 384           return STATUS_UNKNOWN_REVISION ;
 385
 386         if ( (*lpbSaclPresent = (SE_SACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 387         {
 388           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 389           { *pSacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Sacl);
 390           }
 391           else
 392           { *pSacl = pSecurityDescriptor->Sacl;
 393           }
 394         }
 395
 396         *lpbSaclDefaulted = (( SE_SACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 397
 398         return STATUS_SUCCESS;
 399 }
 400
 401 /**************************************************************************
 402  * RtlSetSaclSecurityDescriptor                 [NTDLL.488]
 403  */
 404 NTSTATUS WINAPI RtlSetSaclSecurityDescriptor (
 405         PSECURITY_DESCRIPTOR lpsd,
 406         BOOLEAN saclpresent,
 407         PACL sacl,
 408         BOOLEAN sacldefaulted)
 409 {
 410         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 411                 return STATUS_UNKNOWN_REVISION;
 412         if (lpsd->Control & SE_SELF_RELATIVE)
 413                 return STATUS_INVALID_SECURITY_DESCR;
 414         if (!saclpresent) {
 415                 lpsd->Control &= ~SE_SACL_PRESENT;
 416                 return 0;
 417         }
 418         lpsd->Control |= SE_SACL_PRESENT;
 419         lpsd->Sacl = sacl;
 420         if (sacldefaulted)
 421                 lpsd->Control |= SE_SACL_DEFAULTED;
 422         else
 423                 lpsd->Control &= ~SE_SACL_DEFAULTED;
 424         return STATUS_SUCCESS;
 425 }
 426
 427 /**************************************************************************
 428  * RtlGetOwnerSecurityDescriptor                [NTDLL.488]
 429  */
 430 NTSTATUS WINAPI RtlGetOwnerSecurityDescriptor(
 431         PSECURITY_DESCRIPTOR SecurityDescriptor,
 432         PSID *Owner,
 433         PBOOLEAN OwnerDefaulted)
 434 {
 435         if ( !SecurityDescriptor  || !Owner || !OwnerDefaulted )
 436                 return STATUS_INVALID_PARAMETER;
 437
 438         *Owner = SecurityDescriptor->Owner;
 439         if ( *Owner != NULL )  {
 440                 if ( SecurityDescriptor->Control & SE_OWNER_DEFAULTED )
 441                         *OwnerDefaulted = TRUE;
 442                 else
 443                         *OwnerDefaulted = FALSE;
 444         }
 445         return STATUS_SUCCESS;
 446 }
 447
 448 /**************************************************************************
 449  *                 RtlSetOwnerSecurityDescriptor                [NTDLL.487]
 450  */
 451 NTSTATUS WINAPI RtlSetOwnerSecurityDescriptor(
 452         PSECURITY_DESCRIPTOR lpsd,
 453         PSID owner,
 454         BOOLEAN ownerdefaulted)
 455 {
 456         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 457                 return STATUS_UNKNOWN_REVISION;
 458         if (lpsd->Control & SE_SELF_RELATIVE)
 459                 return STATUS_INVALID_SECURITY_DESCR;
 460
 461         lpsd->Owner = owner;
 462         if (ownerdefaulted)
 463                 lpsd->Control |= SE_OWNER_DEFAULTED;
 464         else
 465                 lpsd->Control &= ~SE_OWNER_DEFAULTED;
 466         return STATUS_SUCCESS;
 467 }
 468
 469 /**************************************************************************
 470  *                 RtlSetGroupSecurityDescriptor                [NTDLL.485]
 471  */
 472 NTSTATUS WINAPI RtlSetGroupSecurityDescriptor (
 473         PSECURITY_DESCRIPTOR lpsd,
 474         PSID group,
 475         BOOLEAN groupdefaulted)
 476 {
 477         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 478                 return STATUS_UNKNOWN_REVISION;
 479         if (lpsd->Control & SE_SELF_RELATIVE)
 480                 return STATUS_INVALID_SECURITY_DESCR;
 481
 482         lpsd->Group = group;
 483         if (groupdefaulted)
 484                 lpsd->Control |= SE_GROUP_DEFAULTED;
 485         else
 486                 lpsd->Control &= ~SE_GROUP_DEFAULTED;
 487         return STATUS_SUCCESS;
 488 }
 489 /**************************************************************************
 490  *                 RtlGetGroupSecurityDescriptor                [NTDLL]
 491  */
 492 NTSTATUS WINAPI RtlGetGroupSecurityDescriptor(
 493         PSECURITY_DESCRIPTOR SecurityDescriptor,
 494         PSID *Group,
 495         PBOOLEAN GroupDefaulted)
 496 {
 497         if ( !SecurityDescriptor || !Group || !GroupDefaulted )
 498                 return STATUS_INVALID_PARAMETER;
 499
 500         *Group = SecurityDescriptor->Group;
 501         if ( *Group != NULL )  {
 502                 if ( SecurityDescriptor->Control & SE_GROUP_DEFAULTED )
 503                         *GroupDefaulted = TRUE;
 504                 else
 505                         *GroupDefaulted = FALSE;
 506         }
 507         return STATUS_SUCCESS;
 508 }
 509
 510 /**************************************************************************
 511  *                 RtlMakeSelfRelativeSD                [NTDLL]
 512  */
 513 NTSTATUS WINAPI RtlMakeSelfRelativeSD(
 514         IN PSECURITY_DESCRIPTOR pAbsoluteSecurityDescriptor,
 515         IN PSECURITY_DESCRIPTOR pSelfRelativeSecurityDescriptor,
 516         IN OUT LPDWORD lpdwBufferLength)
 517 {
 518         FIXME("(%p,%p,%p(%lu))\n", pAbsoluteSecurityDescriptor,
 519         pSelfRelativeSecurityDescriptor, lpdwBufferLength,*lpdwBufferLength);
 520         return STATUS_SUCCESS;
 521 }
 522
 523 /*
 524  *      access control list's
 525  */
 526
 527 /**************************************************************************
 528  *                 RtlCreateAcl                         [NTDLL.306]
 529  *
 530  * NOTES
 531  *    This should return NTSTATUS
 532  */
 533 NTSTATUS WINAPI RtlCreateAcl(PACL acl,DWORD size,DWORD rev)
 534 {
 535         TRACE("%p 0x%08lx 0x%08lx\n", acl, size, rev);
 536
 537         if (rev!=ACL_REVISION)
 538                 return STATUS_INVALID_PARAMETER;
 539         if (size<sizeof(ACL))
 540                 return STATUS_BUFFER_TOO_SMALL;
 541         if (size>0xFFFF)
 542                 return STATUS_INVALID_PARAMETER;
 543
 544         memset(acl,'\0',sizeof(ACL));
 545         acl->AclRevision        = rev;
 546         acl->AclSize            = size;
 547         acl->AceCount           = 0;
 548         return 0;
 549 }
 550
 551 /**************************************************************************
 552  *                 RtlFirstFreeAce                      [NTDLL.370]
 553  * looks for the AceCount+1 ACE, and if it is still within the alloced
 554  * ACL, return a pointer to it
 555  */
 556 BOOLEAN WINAPI RtlFirstFreeAce(
 557         PACL acl,
 558         PACE_HEADER *x)
 559 {
 560         PACE_HEADER     ace;
 561         int             i;
 562
 563         *x = 0;
 564         ace = (PACE_HEADER)(acl+1);
 565         for (i=0;i<acl->AceCount;i++) {
 566                 if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 567                         return 0;
 568                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 569         }
 570         if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 571                 return 0;
 572         *x = ace;
 573         return 1;
 574 }
 575
 576 /**************************************************************************
 577  *                 RtlAddAce                            [NTDLL.260]
 578  */
 579 NTSTATUS WINAPI RtlAddAce(
 580         PACL acl,
 581         DWORD rev,
 582         DWORD xnrofaces,
 583         PACE_HEADER acestart,
 584         DWORD acelen)
 585 {
 586         PACE_HEADER     ace,targetace;
 587         int             nrofaces;
 588
 589         if (acl->AclRevision != ACL_REVISION)
 590                 return STATUS_INVALID_PARAMETER;
 591         if (!RtlFirstFreeAce(acl,&targetace))
 592                 return STATUS_INVALID_PARAMETER;
 593         nrofaces=0;ace=acestart;
 594         while (((DWORD)ace-(DWORD)acestart)<acelen) {
 595                 nrofaces++;
 596                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 597         }
 598         if ((DWORD)targetace+acelen>(DWORD)acl+acl->AclSize) /* too much aces */
 599                 return STATUS_INVALID_PARAMETER;
 600         memcpy((LPBYTE)targetace,acestart,acelen);
 601         acl->AceCount+=nrofaces;
 602         return STATUS_SUCCESS;
 603 }
 604
 605 /******************************************************************************
 606  *  RtlAddAccessAllowedAce              [NTDLL]
 607  */
 608 BOOL WINAPI RtlAddAccessAllowedAce(
 609         IN OUT PACL pAcl,
 610         IN DWORD dwAceRevision,
 611         IN DWORD AccessMask,
 612         IN PSID pSid)
 613 {
 614         FIXME("(%p,0x%08lx,0x%08lx,%p),stub!\n",
 615         pAcl, dwAceRevision, AccessMask, pSid);
 616         return 0;
 617 }
 618
 619 /******************************************************************************
 620  *  RtlGetAce           [NTDLL]
 621  */
 622 DWORD WINAPI RtlGetAce(PACL pAcl,DWORD dwAceIndex,LPVOID *pAce )
 623 {
 624         FIXME("(%p,%ld,%p),stub!\n",pAcl,dwAceIndex,pAce);
 625         return 0;
 626 }
 627
 628 /*
 629  *      misc
 630  */
 631
 632 /******************************************************************************
 633  *  RtlAdjustPrivilege          [NTDLL]
 634  */
 635 DWORD WINAPI RtlAdjustPrivilege(DWORD x1,DWORD x2,DWORD x3,DWORD x4)
 636 {
 637         FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4);
 638         return 0;
 639 }
 640
 641 /******************************************************************************
 642  *  RtlImpersonateSelf          [NTDLL]
 643  */
 644 BOOL WINAPI
 645 RtlImpersonateSelf(SECURITY_IMPERSONATION_LEVEL ImpersonationLevel)
 646 {
 647         FIXME("(%08x), stub\n", ImpersonationLevel);
 648         return TRUE;
 649 }
 650
 651 /******************************************************************************
 652  *  NtAccessCheck               [NTDLL]
 653  */
 654 NTSTATUS WINAPI
 655 NtAccessCheck(
 656         IN PSECURITY_DESCRIPTOR SecurityDescriptor,
 657         IN HANDLE ClientToken,
 658         IN ACCESS_MASK DesiredAccess,
 659         IN PGENERIC_MAPPING GenericMapping,
 660         OUT PPRIVILEGE_SET PrivilegeSet,
 661         OUT PULONG ReturnLength,
 662         OUT PULONG GrantedAccess,
 663         OUT PBOOLEAN AccessStatus)
 664 {
 665         FIXME("(%p, %04x, %08lx, %p, %p, %p, %p, %p), stub\n",
 666           SecurityDescriptor, ClientToken, DesiredAccess, GenericMapping,
 667           PrivilegeSet, ReturnLength, GrantedAccess, AccessStatus);
 668         *AccessStatus = TRUE;
 669         return STATUS_SUCCESS;
 670 }
 671
 672 /******************************************************************************
 673  *  NtSetSecurityObject         [NTDLL]
 674  */
 675 NTSTATUS WINAPI
 676 NtSetSecurityObject(
 677         IN HANDLE Handle,
 678         IN SECURITY_INFORMATION SecurityInformation,
 679         IN PSECURITY_DESCRIPTOR SecurityDescriptor)
 680 {
 681         FIXME("0x%08x 0x%08lx %p\n", Handle, SecurityInformation, SecurityDescriptor);
 682         return STATUS_SUCCESS;
 683 }
 684
 685 /******************************************************************************
 686  * RtlGetControlSecurityDescriptor
 687  */
 688
 689 NTSTATUS WINAPI RtlGetControlSecurityDescriptor(
 690         PSECURITY_DESCRIPTOR  pSecurityDescriptor,
 691         PSECURITY_DESCRIPTOR_CONTROL pControl,
 692         LPDWORD lpdwRevision)
 693 {
 694         FIXME("(%p,%p,%p),stub!\n",pSecurityDescriptor,pControl,lpdwRevision);
 695         return STATUS_SUCCESS;
 696 }
 697
 698 /******************************************************************************
 699  * RtlConvertSidToUnicodeString
 700  */
 701 NTSTATUS WINAPI RtlConvertSidToUnicodeString(
 702        PUNICODE_STRING UnicodeSID,
 703        PSID *pSid)
 704 {
 705 /*      LPSTR GenSID = "S-1-5-21-0000000000-000000000-0000000000-500"; */
 706
 707         LPSTR GenSID = ".Default";      /* usually the returned SID is used to */
 708                                         /* access  "\\REGISTRY\\USER\\.DEFAULT" */
 709
 710         ANSI_STRING AnsiStr;
 711
 712         FIXME("(%p %p)\n", UnicodeSID, pSid);
 713         dump_UnicodeString(UnicodeSID, FALSE);
 714
 715         RtlInitAnsiString(&AnsiStr, GenSID);
 716         return RtlAnsiStringToUnicodeString(UnicodeSID, &AnsiStr, TRUE);
 717 }