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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 "wine/exception.h"
  15 #include "file.h"
  16 #include "heap.h"
  17 #include "winnls.h"
  18 #include "debugtools.h"
  19 #include "winerror.h"
  20 #include "stackframe.h"
  21
  22 #include "ntddk.h"
  23 #include "winreg.h"
  24 #include "ntdll_misc.h"
  25
  26 DEFAULT_DEBUG_CHANNEL(ntdll);
  27
  28 #define NT_SUCCESS(status) (status == STATUS_SUCCESS)
  29
  30 /* filter for page-fault exceptions */
  31 static WINE_EXCEPTION_FILTER(page_fault)
  32 {
  33     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
  34         return EXCEPTION_EXECUTE_HANDLER;
  35     return EXCEPTION_CONTINUE_SEARCH;
  36 }
  37
  38 /*
  39  *      SID FUNCTIONS
  40  */
  41
  42 /******************************************************************************
  43  *  RtlAllocateAndInitializeSid         [NTDLL.265]
  44  *
  45  */
  46 BOOLEAN WINAPI RtlAllocateAndInitializeSid (
  47         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
  48         BYTE nSubAuthorityCount,
  49         DWORD nSubAuthority0, DWORD nSubAuthority1,
  50         DWORD nSubAuthority2, DWORD nSubAuthority3,
  51         DWORD nSubAuthority4, DWORD nSubAuthority5,
  52         DWORD nSubAuthority6, DWORD nSubAuthority7,
  53         PSID *pSid )
  54 {
  55         TRACE("(%p, 0x%04x,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,%p)\n",
  56                 pIdentifierAuthority,nSubAuthorityCount,
  57                 nSubAuthority0, nSubAuthority1, nSubAuthority2, nSubAuthority3,
  58                 nSubAuthority4, nSubAuthority5, nSubAuthority6, nSubAuthority7, pSid);
  59
  60         if (!(*pSid = HeapAlloc( GetProcessHeap(), 0, RtlLengthRequiredSid(nSubAuthorityCount))))
  61           return FALSE;
  62
  63         (*pSid)->Revision = SID_REVISION;
  64
  65         if (pIdentifierAuthority)
  66           memcpy(&(*pSid)->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
  67         *RtlSubAuthorityCountSid(*pSid) = nSubAuthorityCount;
  68
  69         if (nSubAuthorityCount > 0)
  70           *RtlSubAuthoritySid(*pSid, 0) = nSubAuthority0;
  71         if (nSubAuthorityCount > 1)
  72           *RtlSubAuthoritySid(*pSid, 1) = nSubAuthority1;
  73         if (nSubAuthorityCount > 2)
  74           *RtlSubAuthoritySid(*pSid, 2) = nSubAuthority2;
  75         if (nSubAuthorityCount > 3)
  76           *RtlSubAuthoritySid(*pSid, 3) = nSubAuthority3;
  77         if (nSubAuthorityCount > 4)
  78           *RtlSubAuthoritySid(*pSid, 4) = nSubAuthority4;
  79         if (nSubAuthorityCount > 5)
  80           *RtlSubAuthoritySid(*pSid, 5) = nSubAuthority5;
  81         if (nSubAuthorityCount > 6)
  82           *RtlSubAuthoritySid(*pSid, 6) = nSubAuthority6;
  83         if (nSubAuthorityCount > 7)
  84           *RtlSubAuthoritySid(*pSid, 7) = nSubAuthority7;
  85
  86         return STATUS_SUCCESS;
  87 }
  88 /******************************************************************************
  89  *  RtlEqualSid         [NTDLL.352]
  90  *
  91  */
  92 BOOL WINAPI RtlEqualSid( PSID pSid1, PSID pSid2 )
  93 {
  94     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
  95         return FALSE;
  96
  97     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
  98         return FALSE;
  99
 100     if (memcmp(pSid1, pSid2, RtlLengthSid(pSid1)) != 0)
 101         return FALSE;
 102
 103     return TRUE;
 104 }
 105
 106 /******************************************************************************
 107  * RtlEqualPrefixSid    [ntdll.]
 108  */
 109 BOOL WINAPI RtlEqualPrefixSid (PSID pSid1, PSID pSid2)
 110 {
 111     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
 112         return FALSE;
 113
 114     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
 115         return FALSE;
 116
 117     if (memcmp(pSid1, pSid2, RtlLengthRequiredSid(pSid1->SubAuthorityCount - 1)) != 0)
 118         return FALSE;
 119
 120     return TRUE;
 121 }
 122
 123
 124 /******************************************************************************
 125  *  RtlFreeSid          [NTDLL.376]
 126  */
 127 DWORD WINAPI RtlFreeSid(PSID pSid)
 128 {
 129         TRACE("(%p)\n", pSid);
 130         HeapFree( GetProcessHeap(), 0, pSid );
 131         return STATUS_SUCCESS;
 132 }
 133
 134 /**************************************************************************
 135  * RtlLengthRequiredSid [NTDLL.427]
 136  *
 137  * PARAMS
 138  *   nSubAuthorityCount []
 139  */
 140 DWORD WINAPI RtlLengthRequiredSid(DWORD nrofsubauths)
 141 {
 142         return (nrofsubauths-1)*sizeof(DWORD) + sizeof(SID);
 143 }
 144
 145 /**************************************************************************
 146  *                 RtlLengthSid                         [NTDLL.429]
 147  */
 148 DWORD WINAPI RtlLengthSid(PSID pSid)
 149 {
 150         TRACE("sid=%p\n",pSid);
 151         if (!pSid) return 0;
 152         return RtlLengthRequiredSid(*RtlSubAuthorityCountSid(pSid));
 153 }
 154
 155 /**************************************************************************
 156  *                 RtlInitializeSid                     [NTDLL.410]
 157  */
 158 BOOL WINAPI RtlInitializeSid(
 159         PSID pSid,
 160         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
 161         BYTE nSubAuthorityCount)
 162 {
 163         int i;
 164         if (nSubAuthorityCount >= SID_MAX_SUB_AUTHORITIES)
 165           return FALSE;
 166
 167         pSid->Revision = SID_REVISION;
 168         pSid->SubAuthorityCount = nSubAuthorityCount;
 169         if (pIdentifierAuthority)
 170           memcpy(&pSid->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
 171
 172         for (i = 0; i < nSubAuthorityCount; i++)
 173           *RtlSubAuthoritySid(pSid, i) = 0;
 174
 175         return TRUE;
 176 }
 177
 178 /**************************************************************************
 179  *                 RtlSubAuthoritySid                   [NTDLL.497]
 180  *
 181  * PARAMS
 182  *   pSid          []
 183  *   nSubAuthority []
 184  */
 185 LPDWORD WINAPI RtlSubAuthoritySid( PSID pSid, DWORD nSubAuthority )
 186 {
 187         return &(pSid->SubAuthority[nSubAuthority]);
 188 }
 189
 190 /**************************************************************************
 191  * RtlIdentifierAuthoritySid    [NTDLL.395]
 192  *
 193  * PARAMS
 194  *   pSid []
 195  */
 196 PSID_IDENTIFIER_AUTHORITY WINAPI RtlIdentifierAuthoritySid( PSID pSid )
 197 {
 198         return &(pSid->IdentifierAuthority);
 199 }
 200
 201 /**************************************************************************
 202  *                 RtlSubAuthorityCountSid              [NTDLL.496]
 203  *
 204  * PARAMS
 205  *   pSid          []
 206  *   nSubAuthority []
 207  */
 208 LPBYTE WINAPI RtlSubAuthorityCountSid(PSID pSid)
 209 {
 210         return &(pSid->SubAuthorityCount);
 211 }
 212
 213 /**************************************************************************
 214  *                 RtlCopySid                           [NTDLL.302]
 215  */
 216 DWORD WINAPI RtlCopySid( DWORD nDestinationSidLength, PSID pDestinationSid, PSID pSourceSid )
 217 {
 218         if (!pSourceSid || !RtlValidSid(pSourceSid) ||
 219             (nDestinationSidLength < RtlLengthSid(pSourceSid)))
 220           return FALSE;
 221
 222         if (nDestinationSidLength < (pSourceSid->SubAuthorityCount*4+8))
 223           return FALSE;
 224
 225         memmove(pDestinationSid, pSourceSid, pSourceSid->SubAuthorityCount*4+8);
 226         return TRUE;
 227 }
 228 /******************************************************************************
 229  * RtlValidSid [NTDLL.532]
 230  *
 231  * PARAMS
 232  *   pSid []
 233  */
 234 BOOL WINAPI
 235 RtlValidSid( PSID pSid )
 236 {
 237     BOOL ret;
 238     __TRY
 239     {
 240         ret = TRUE;
 241         if (!pSid || pSid->Revision != SID_REVISION ||
 242             pSid->SubAuthorityCount > SID_MAX_SUB_AUTHORITIES)
 243         {
 244             ret = FALSE;
 245         }
 246     }
 247     __EXCEPT(page_fault)
 248     {
 249         WARN("(%p): invalid pointer!\n", pSid);
 250         return FALSE;
 251     }
 252     __ENDTRY
 253     return ret;
 254 }
 255
 256
 257 /*
 258  *      security descriptor functions
 259  */
 260
 261 /**************************************************************************
 262  * RtlCreateSecurityDescriptor                  [NTDLL.313]
 263  *
 264  * RETURNS:
 265  *  0 success,
 266  *  STATUS_INVALID_OWNER, STATUS_PRIVILEGE_NOT_HELD, STATUS_NO_INHERITANCE,
 267  *  STATUS_NO_MEMORY
 268  */
 269 NTSTATUS WINAPI RtlCreateSecurityDescriptor(
 270         PSECURITY_DESCRIPTOR lpsd,
 271         DWORD rev)
 272 {
 273         if (rev!=SECURITY_DESCRIPTOR_REVISION)
 274                 return STATUS_UNKNOWN_REVISION;
 275         memset(lpsd,'\0',sizeof(*lpsd));
 276         lpsd->Revision = SECURITY_DESCRIPTOR_REVISION;
 277         return STATUS_SUCCESS;
 278 }
 279 /**************************************************************************
 280  * RtlValidSecurityDescriptor                   [NTDLL.313]
 281  *
 282  */
 283 NTSTATUS WINAPI RtlValidSecurityDescriptor(
 284         PSECURITY_DESCRIPTOR SecurityDescriptor)
 285 {
 286         if ( ! SecurityDescriptor )
 287                 return STATUS_INVALID_SECURITY_DESCR;
 288         if ( SecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION )
 289                 return STATUS_UNKNOWN_REVISION;
 290
 291         return STATUS_SUCCESS;
 292 }
 293
 294 /**************************************************************************
 295  *  RtlLengthSecurityDescriptor                 [NTDLL]
 296  */
 297 ULONG WINAPI RtlLengthSecurityDescriptor(
 298         PSECURITY_DESCRIPTOR SecurityDescriptor)
 299 {
 300         ULONG Size;
 301         Size = SECURITY_DESCRIPTOR_MIN_LENGTH;
 302         if ( SecurityDescriptor == NULL )
 303                 return 0;
 304
 305         if ( SecurityDescriptor->Owner != NULL )
 306                 Size += SecurityDescriptor->Owner->SubAuthorityCount;
 307         if ( SecurityDescriptor->Group != NULL )
 308                 Size += SecurityDescriptor->Group->SubAuthorityCount;
 309
 310
 311         if ( SecurityDescriptor->Sacl != NULL )
 312                 Size += SecurityDescriptor->Sacl->AclSize;
 313         if ( SecurityDescriptor->Dacl != NULL )
 314                 Size += SecurityDescriptor->Dacl->AclSize;
 315
 316         return Size;
 317 }
 318
 319 /******************************************************************************
 320  *  RtlGetDaclSecurityDescriptor                [NTDLL]
 321  *
 322  */
 323 NTSTATUS WINAPI RtlGetDaclSecurityDescriptor(
 324         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 325         OUT PBOOLEAN lpbDaclPresent,
 326         OUT PACL *pDacl,
 327         OUT PBOOLEAN lpbDaclDefaulted)
 328 {
 329         TRACE("(%p,%p,%p,%p)\n",
 330         pSecurityDescriptor, lpbDaclPresent, *pDacl, lpbDaclDefaulted);
 331
 332         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 333           return STATUS_UNKNOWN_REVISION ;
 334
 335         if ( (*lpbDaclPresent = (SE_DACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 336         {
 337           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 338           { *pDacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Dacl);
 339           }
 340           else
 341           { *pDacl = pSecurityDescriptor->Dacl;
 342           }
 343         }
 344
 345         *lpbDaclDefaulted = (( SE_DACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 346
 347         return STATUS_SUCCESS;
 348 }
 349
 350 /**************************************************************************
 351  *  RtlSetDaclSecurityDescriptor                [NTDLL.483]
 352  */
 353 NTSTATUS WINAPI RtlSetDaclSecurityDescriptor (
 354         PSECURITY_DESCRIPTOR lpsd,
 355         BOOLEAN daclpresent,
 356         PACL dacl,
 357         BOOLEAN dacldefaulted )
 358 {
 359         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 360                 return STATUS_UNKNOWN_REVISION;
 361         if (lpsd->Control & SE_SELF_RELATIVE)
 362                 return STATUS_INVALID_SECURITY_DESCR;
 363
 364         if (!daclpresent)
 365         {       lpsd->Control &= ~SE_DACL_PRESENT;
 366                 return TRUE;
 367         }
 368
 369         lpsd->Control |= SE_DACL_PRESENT;
 370         lpsd->Dacl = dacl;
 371
 372         if (dacldefaulted)
 373                 lpsd->Control |= SE_DACL_DEFAULTED;
 374         else
 375                 lpsd->Control &= ~SE_DACL_DEFAULTED;
 376
 377         return STATUS_SUCCESS;
 378 }
 379
 380 /******************************************************************************
 381  *  RtlGetSaclSecurityDescriptor                [NTDLL]
 382  *
 383  */
 384 NTSTATUS WINAPI RtlGetSaclSecurityDescriptor(
 385         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 386         OUT PBOOLEAN lpbSaclPresent,
 387         OUT PACL *pSacl,
 388         OUT PBOOLEAN lpbSaclDefaulted)
 389 {
 390         TRACE("(%p,%p,%p,%p)\n",
 391         pSecurityDescriptor, lpbSaclPresent, *pSacl, lpbSaclDefaulted);
 392
 393         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 394           return STATUS_UNKNOWN_REVISION ;
 395
 396         if ( (*lpbSaclPresent = (SE_SACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 397         {
 398           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 399           { *pSacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Sacl);
 400           }
 401           else
 402           { *pSacl = pSecurityDescriptor->Sacl;
 403           }
 404         }
 405
 406         *lpbSaclDefaulted = (( SE_SACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 407
 408         return STATUS_SUCCESS;
 409 }
 410
 411 /**************************************************************************
 412  * RtlSetSaclSecurityDescriptor                 [NTDLL.488]
 413  */
 414 NTSTATUS WINAPI RtlSetSaclSecurityDescriptor (
 415         PSECURITY_DESCRIPTOR lpsd,
 416         BOOLEAN saclpresent,
 417         PACL sacl,
 418         BOOLEAN sacldefaulted)
 419 {
 420         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 421                 return STATUS_UNKNOWN_REVISION;
 422         if (lpsd->Control & SE_SELF_RELATIVE)
 423                 return STATUS_INVALID_SECURITY_DESCR;
 424         if (!saclpresent) {
 425                 lpsd->Control &= ~SE_SACL_PRESENT;
 426                 return 0;
 427         }
 428         lpsd->Control |= SE_SACL_PRESENT;
 429         lpsd->Sacl = sacl;
 430         if (sacldefaulted)
 431                 lpsd->Control |= SE_SACL_DEFAULTED;
 432         else
 433                 lpsd->Control &= ~SE_SACL_DEFAULTED;
 434         return STATUS_SUCCESS;
 435 }
 436
 437 /**************************************************************************
 438  * RtlGetOwnerSecurityDescriptor                [NTDLL.488]
 439  */
 440 NTSTATUS WINAPI RtlGetOwnerSecurityDescriptor(
 441         PSECURITY_DESCRIPTOR SecurityDescriptor,
 442         PSID *Owner,
 443         PBOOLEAN OwnerDefaulted)
 444 {
 445         if ( !SecurityDescriptor  || !Owner || !OwnerDefaulted )
 446                 return STATUS_INVALID_PARAMETER;
 447
 448         *Owner = SecurityDescriptor->Owner;
 449         if ( *Owner != NULL )  {
 450                 if ( SecurityDescriptor->Control & SE_OWNER_DEFAULTED )
 451                         *OwnerDefaulted = TRUE;
 452                 else
 453                         *OwnerDefaulted = FALSE;
 454         }
 455         return STATUS_SUCCESS;
 456 }
 457
 458 /**************************************************************************
 459  *                 RtlSetOwnerSecurityDescriptor                [NTDLL.487]
 460  */
 461 NTSTATUS WINAPI RtlSetOwnerSecurityDescriptor(
 462         PSECURITY_DESCRIPTOR lpsd,
 463         PSID owner,
 464         BOOLEAN ownerdefaulted)
 465 {
 466         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 467                 return STATUS_UNKNOWN_REVISION;
 468         if (lpsd->Control & SE_SELF_RELATIVE)
 469                 return STATUS_INVALID_SECURITY_DESCR;
 470
 471         lpsd->Owner = owner;
 472         if (ownerdefaulted)
 473                 lpsd->Control |= SE_OWNER_DEFAULTED;
 474         else
 475                 lpsd->Control &= ~SE_OWNER_DEFAULTED;
 476         return STATUS_SUCCESS;
 477 }
 478
 479 /**************************************************************************
 480  *                 RtlSetGroupSecurityDescriptor                [NTDLL.485]
 481  */
 482 NTSTATUS WINAPI RtlSetGroupSecurityDescriptor (
 483         PSECURITY_DESCRIPTOR lpsd,
 484         PSID group,
 485         BOOLEAN groupdefaulted)
 486 {
 487         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 488                 return STATUS_UNKNOWN_REVISION;
 489         if (lpsd->Control & SE_SELF_RELATIVE)
 490                 return STATUS_INVALID_SECURITY_DESCR;
 491
 492         lpsd->Group = group;
 493         if (groupdefaulted)
 494                 lpsd->Control |= SE_GROUP_DEFAULTED;
 495         else
 496                 lpsd->Control &= ~SE_GROUP_DEFAULTED;
 497         return STATUS_SUCCESS;
 498 }
 499 /**************************************************************************
 500  *                 RtlGetGroupSecurityDescriptor                [NTDLL]
 501  */
 502 NTSTATUS WINAPI RtlGetGroupSecurityDescriptor(
 503         PSECURITY_DESCRIPTOR SecurityDescriptor,
 504         PSID *Group,
 505         PBOOLEAN GroupDefaulted)
 506 {
 507         if ( !SecurityDescriptor || !Group || !GroupDefaulted )
 508                 return STATUS_INVALID_PARAMETER;
 509
 510         *Group = SecurityDescriptor->Group;
 511         if ( *Group != NULL )  {
 512                 if ( SecurityDescriptor->Control & SE_GROUP_DEFAULTED )
 513                         *GroupDefaulted = TRUE;
 514                 else
 515                         *GroupDefaulted = FALSE;
 516         }
 517         return STATUS_SUCCESS;
 518 }
 519
 520 /**************************************************************************
 521  *                 RtlMakeSelfRelativeSD                [NTDLL]
 522  */
 523 NTSTATUS WINAPI RtlMakeSelfRelativeSD(
 524         IN PSECURITY_DESCRIPTOR pAbsoluteSecurityDescriptor,
 525         IN PSECURITY_DESCRIPTOR pSelfRelativeSecurityDescriptor,
 526         IN OUT LPDWORD lpdwBufferLength)
 527 {
 528         FIXME("(%p,%p,%p(%lu))\n", pAbsoluteSecurityDescriptor,
 529         pSelfRelativeSecurityDescriptor, lpdwBufferLength,*lpdwBufferLength);
 530         return STATUS_SUCCESS;
 531 }
 532
 533 /*
 534  *      access control list's
 535  */
 536
 537 /**************************************************************************
 538  *                 RtlCreateAcl                         [NTDLL.306]
 539  *
 540  * NOTES
 541  *    This should return NTSTATUS
 542  */
 543 NTSTATUS WINAPI RtlCreateAcl(PACL acl,DWORD size,DWORD rev)
 544 {
 545         TRACE("%p 0x%08lx 0x%08lx\n", acl, size, rev);
 546
 547         if (rev!=ACL_REVISION)
 548                 return STATUS_INVALID_PARAMETER;
 549         if (size<sizeof(ACL))
 550                 return STATUS_BUFFER_TOO_SMALL;
 551         if (size>0xFFFF)
 552                 return STATUS_INVALID_PARAMETER;
 553
 554         memset(acl,'\0',sizeof(ACL));
 555         acl->AclRevision        = rev;
 556         acl->AclSize            = size;
 557         acl->AceCount           = 0;
 558         return 0;
 559 }
 560
 561 /**************************************************************************
 562  *                 RtlFirstFreeAce                      [NTDLL.370]
 563  * looks for the AceCount+1 ACE, and if it is still within the alloced
 564  * ACL, return a pointer to it
 565  */
 566 BOOLEAN WINAPI RtlFirstFreeAce(
 567         PACL acl,
 568         PACE_HEADER *x)
 569 {
 570         PACE_HEADER     ace;
 571         int             i;
 572
 573         *x = 0;
 574         ace = (PACE_HEADER)(acl+1);
 575         for (i=0;i<acl->AceCount;i++) {
 576                 if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 577                         return 0;
 578                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 579         }
 580         if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 581                 return 0;
 582         *x = ace;
 583         return 1;
 584 }
 585
 586 /**************************************************************************
 587  *                 RtlAddAce                            [NTDLL.260]
 588  */
 589 NTSTATUS WINAPI RtlAddAce(
 590         PACL acl,
 591         DWORD rev,
 592         DWORD xnrofaces,
 593         PACE_HEADER acestart,
 594         DWORD acelen)
 595 {
 596         PACE_HEADER     ace,targetace;
 597         int             nrofaces;
 598
 599         if (acl->AclRevision != ACL_REVISION)
 600                 return STATUS_INVALID_PARAMETER;
 601         if (!RtlFirstFreeAce(acl,&targetace))
 602                 return STATUS_INVALID_PARAMETER;
 603         nrofaces=0;ace=acestart;
 604         while (((DWORD)ace-(DWORD)acestart)<acelen) {
 605                 nrofaces++;
 606                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 607         }
 608         if ((DWORD)targetace+acelen>(DWORD)acl+acl->AclSize) /* too much aces */
 609                 return STATUS_INVALID_PARAMETER;
 610         memcpy((LPBYTE)targetace,acestart,acelen);
 611         acl->AceCount+=nrofaces;
 612         return STATUS_SUCCESS;
 613 }
 614
 615 /******************************************************************************
 616  *  RtlAddAccessAllowedAce              [NTDLL]
 617  */
 618 BOOL WINAPI RtlAddAccessAllowedAce(
 619         IN OUT PACL pAcl,
 620         IN DWORD dwAceRevision,
 621         IN DWORD AccessMask,
 622         IN PSID pSid)
 623 {
 624         FIXME("(%p,0x%08lx,0x%08lx,%p),stub!\n",
 625         pAcl, dwAceRevision, AccessMask, pSid);
 626         return 0;
 627 }
 628
 629 /******************************************************************************
 630  *  RtlGetAce           [NTDLL]
 631  */
 632 DWORD WINAPI RtlGetAce(PACL pAcl,DWORD dwAceIndex,LPVOID *pAce )
 633 {
 634         FIXME("(%p,%ld,%p),stub!\n",pAcl,dwAceIndex,pAce);
 635         return 0;
 636 }
 637
 638 /*
 639  *      misc
 640  */
 641
 642 /******************************************************************************
 643  *  RtlAdjustPrivilege          [NTDLL]
 644  */
 645 DWORD WINAPI RtlAdjustPrivilege(DWORD x1,DWORD x2,DWORD x3,DWORD x4)
 646 {
 647         FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4);
 648         return 0;
 649 }
 650
 651 /******************************************************************************
 652  *  RtlImpersonateSelf          [NTDLL]
 653  */
 654 BOOL WINAPI
 655 RtlImpersonateSelf(SECURITY_IMPERSONATION_LEVEL ImpersonationLevel)
 656 {
 657         FIXME("(%08x), stub\n", ImpersonationLevel);
 658         return TRUE;
 659 }
 660
 661 /******************************************************************************
 662  *  NtAccessCheck               [NTDLL]
 663  */
 664 NTSTATUS WINAPI
 665 NtAccessCheck(
 666         IN PSECURITY_DESCRIPTOR SecurityDescriptor,
 667         IN HANDLE ClientToken,
 668         IN ACCESS_MASK DesiredAccess,
 669         IN PGENERIC_MAPPING GenericMapping,
 670         OUT PPRIVILEGE_SET PrivilegeSet,
 671         OUT PULONG ReturnLength,
 672         OUT PULONG GrantedAccess,
 673         OUT PBOOLEAN AccessStatus)
 674 {
 675         FIXME("(%p, %04x, %08lx, %p, %p, %p, %p, %p), stub\n",
 676           SecurityDescriptor, ClientToken, DesiredAccess, GenericMapping,
 677           PrivilegeSet, ReturnLength, GrantedAccess, AccessStatus);
 678         *AccessStatus = TRUE;
 679         return STATUS_SUCCESS;
 680 }
 681
 682 /******************************************************************************
 683  *  NtSetSecurityObject         [NTDLL]
 684  */
 685 NTSTATUS WINAPI
 686 NtSetSecurityObject(
 687         IN HANDLE Handle,
 688         IN SECURITY_INFORMATION SecurityInformation,
 689         IN PSECURITY_DESCRIPTOR SecurityDescriptor)
 690 {
 691         FIXME("0x%08x 0x%08lx %p\n", Handle, SecurityInformation, SecurityDescriptor);
 692         return STATUS_SUCCESS;
 693 }
 694
 695 /******************************************************************************
 696  * RtlGetControlSecurityDescriptor
 697  */
 698
 699 NTSTATUS WINAPI RtlGetControlSecurityDescriptor(
 700         PSECURITY_DESCRIPTOR  pSecurityDescriptor,
 701         PSECURITY_DESCRIPTOR_CONTROL pControl,
 702         LPDWORD lpdwRevision)
 703 {
 704         FIXME("(%p,%p,%p),stub!\n",pSecurityDescriptor,pControl,lpdwRevision);
 705         return STATUS_SUCCESS;
 706 }
 707
 708 /******************************************************************************
 709  * RtlConvertSidToUnicodeString
 710  */
 711 NTSTATUS WINAPI RtlConvertSidToUnicodeString(
 712        PUNICODE_STRING UnicodeSID,
 713        PSID *pSid)
 714 {
 715 /*      LPSTR GenSID = "S-1-5-21-0000000000-000000000-0000000000-500"; */
 716
 717         LPSTR GenSID = ".Default";      /* usually the returned SID is used to */
 718                                         /* access  "\\REGISTRY\\USER\\.DEFAULT" */
 719
 720         ANSI_STRING AnsiStr;
 721
 722         FIXME("(%p %p)\n", UnicodeSID, pSid);
 723         dump_UnicodeString(UnicodeSID, FALSE);
 724
 725         RtlInitAnsiString(&AnsiStr, GenSID);
 726         return RtlAnsiStringToUnicodeString(UnicodeSID, &AnsiStr, TRUE);
 727 }