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   1 /*
   2  *      Security functions
   3  *
   4  *      Copyright 1996-1998 Marcus Meissner
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <time.h>
  27 #include <ctype.h>
  28 #include <math.h>
  29 #ifdef HAVE_UNISTD_H
  30 # include <unistd.h>
  31 #endif
  32
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wine/exception.h"
  36 #include "file.h"
  37 #include "winnls.h"
  38 #include "wine/debug.h"
  39 #include "winerror.h"
  40 #include "stackframe.h"
  41
  42 #include "winternl.h"
  43 #include "winreg.h"
  44 #include "ntdll_misc.h"
  45 #include "excpt.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  48
  49 #define NT_SUCCESS(status) (status == STATUS_SUCCESS)
  50
  51 /* filter for page-fault exceptions */
  52 static WINE_EXCEPTION_FILTER(page_fault)
  53 {
  54     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
  55         return EXCEPTION_EXECUTE_HANDLER;
  56     return EXCEPTION_CONTINUE_SEARCH;
  57 }
  58
  59 /*
  60  *      SID FUNCTIONS
  61  */
  62
  63 /******************************************************************************
  64  *  RtlAllocateAndInitializeSid         [NTDLL.@]
  65  *
  66  */
  67 BOOLEAN WINAPI RtlAllocateAndInitializeSid (
  68         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
  69         BYTE nSubAuthorityCount,
  70         DWORD nSubAuthority0, DWORD nSubAuthority1,
  71         DWORD nSubAuthority2, DWORD nSubAuthority3,
  72         DWORD nSubAuthority4, DWORD nSubAuthority5,
  73         DWORD nSubAuthority6, DWORD nSubAuthority7,
  74         PSID *pSid )
  75 {
  76         TRACE("(%p, 0x%04x,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,%p)\n",
  77                 pIdentifierAuthority,nSubAuthorityCount,
  78                 nSubAuthority0, nSubAuthority1, nSubAuthority2, nSubAuthority3,
  79                 nSubAuthority4, nSubAuthority5, nSubAuthority6, nSubAuthority7, pSid);
  80
  81         if (!(*pSid = RtlAllocateHeap( ntdll_get_process_heap(), 0,
  82                                        RtlLengthRequiredSid(nSubAuthorityCount))))
  83           return FALSE;
  84
  85         (*pSid)->Revision = SID_REVISION;
  86
  87         if (pIdentifierAuthority)
  88           memcpy(&(*pSid)->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
  89         *RtlSubAuthorityCountSid(*pSid) = nSubAuthorityCount;
  90
  91         if (nSubAuthorityCount > 0)
  92           *RtlSubAuthoritySid(*pSid, 0) = nSubAuthority0;
  93         if (nSubAuthorityCount > 1)
  94           *RtlSubAuthoritySid(*pSid, 1) = nSubAuthority1;
  95         if (nSubAuthorityCount > 2)
  96           *RtlSubAuthoritySid(*pSid, 2) = nSubAuthority2;
  97         if (nSubAuthorityCount > 3)
  98           *RtlSubAuthoritySid(*pSid, 3) = nSubAuthority3;
  99         if (nSubAuthorityCount > 4)
 100           *RtlSubAuthoritySid(*pSid, 4) = nSubAuthority4;
 101         if (nSubAuthorityCount > 5)
 102           *RtlSubAuthoritySid(*pSid, 5) = nSubAuthority5;
 103         if (nSubAuthorityCount > 6)
 104           *RtlSubAuthoritySid(*pSid, 6) = nSubAuthority6;
 105         if (nSubAuthorityCount > 7)
 106           *RtlSubAuthoritySid(*pSid, 7) = nSubAuthority7;
 107
 108         return STATUS_SUCCESS;
 109 }
 110 /******************************************************************************
 111  *  RtlEqualSid         [NTDLL.@]
 112  *
 113  * Determine if two SIDs are equal.
 114  *
 115  * PARAMS
 116  *  pSid1 [I] Source SID
 117  *  pSid2 [I] SID to compare with
 118  *
 119  * RETURNS
 120  *  TRUE, if pSid1 is equal to pSid2,
 121  *  FALSE otherwise.
 122  */
 123 BOOL WINAPI RtlEqualSid( PSID pSid1, PSID pSid2 )
 124 {
 125     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
 126         return FALSE;
 127
 128     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
 129         return FALSE;
 130
 131     if (memcmp(pSid1, pSid2, RtlLengthSid(pSid1)) != 0)
 132         return FALSE;
 133
 134     return TRUE;
 135 }
 136
 137 /******************************************************************************
 138  * RtlEqualPrefixSid    [NTDLL.@]
 139  */
 140 BOOL WINAPI RtlEqualPrefixSid (PSID pSid1, PSID pSid2)
 141 {
 142     if (!RtlValidSid(pSid1) || !RtlValidSid(pSid2))
 143         return FALSE;
 144
 145     if (*RtlSubAuthorityCountSid(pSid1) != *RtlSubAuthorityCountSid(pSid2))
 146         return FALSE;
 147
 148     if (memcmp(pSid1, pSid2, RtlLengthRequiredSid(pSid1->SubAuthorityCount - 1)) != 0)
 149         return FALSE;
 150
 151     return TRUE;
 152 }
 153
 154
 155 /******************************************************************************
 156  *  RtlFreeSid          [NTDLL.@]
 157  *
 158  * Free the resources used by a SID.
 159  *
 160  * PARAMS
 161  *  pSid [I] SID to Free.
 162  *
 163  * RETURNS
 164  *  STATUS_SUCCESS.
 165  */
 166 DWORD WINAPI RtlFreeSid(PSID pSid)
 167 {
 168         TRACE("(%p)\n", pSid);
 169         RtlFreeHeap( ntdll_get_process_heap(), 0, pSid );
 170         return STATUS_SUCCESS;
 171 }
 172
 173 /**************************************************************************
 174  * RtlLengthRequiredSid [NTDLL.@]
 175  *
 176  * Determine the amount of memory a SID will use
 177  *
 178  * PARAMS
 179  *   nrofsubauths [I] Number of Sub Authorities in the SID.
 180  *
 181  * RETURNS
 182  *   The size, in bytes, of a SID with nrofsubauths Sub Authorities.
 183  */
 184 DWORD WINAPI RtlLengthRequiredSid(DWORD nrofsubauths)
 185 {
 186         return (nrofsubauths-1)*sizeof(DWORD) + sizeof(SID);
 187 }
 188
 189 /**************************************************************************
 190  *                 RtlLengthSid                         [NTDLL.@]
 191  *
 192  * Determine the amount of memory a SID is using
 193  *
 194  * PARAMS
 195  *  pSid [I] SID to ge the size of.
 196  *
 197  * RETURNS
 198  *  The size, in bytes, of pSid.
 199  */
 200 DWORD WINAPI RtlLengthSid(PSID pSid)
 201 {
 202         TRACE("sid=%p\n",pSid);
 203         if (!pSid) return 0;
 204         return RtlLengthRequiredSid(*RtlSubAuthorityCountSid(pSid));
 205 }
 206
 207 /**************************************************************************
 208  *                 RtlInitializeSid                     [NTDLL.@]
 209  *
 210  * Initialise a SID.
 211  *
 212  * PARAMS
 213  *  pSid                 [I] SID to initialise
 214  *  pIdentifierAuthority [I] Identifier Authority
 215  *  nSubAuthorityCount   [I] Number of Sub Authorities
 216  *
 217  * RETURNS
 218  *  Success: TRUE. pSid is initialised withe the details given.
 219  *  Failure: FALSE, if nSubAuthorityCount is >= SID_MAX_SUB_AUTHORITIES.
 220  */
 221 BOOL WINAPI RtlInitializeSid(
 222         PSID pSid,
 223         PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
 224         BYTE nSubAuthorityCount)
 225 {
 226         int i;
 227         if (nSubAuthorityCount >= SID_MAX_SUB_AUTHORITIES)
 228           return FALSE;
 229
 230         pSid->Revision = SID_REVISION;
 231         pSid->SubAuthorityCount = nSubAuthorityCount;
 232         if (pIdentifierAuthority)
 233           memcpy(&pSid->IdentifierAuthority, pIdentifierAuthority, sizeof (SID_IDENTIFIER_AUTHORITY));
 234
 235         for (i = 0; i < nSubAuthorityCount; i++)
 236           *RtlSubAuthoritySid(pSid, i) = 0;
 237
 238         return TRUE;
 239 }
 240
 241 /**************************************************************************
 242  *                 RtlSubAuthoritySid                   [NTDLL.@]
 243  *
 244  * Return the Sub Authority of a SID
 245  *
 246  * PARAMS
 247  *   pSid          [I] SID to get the Sub Authority from.
 248  *   nSubAuthority [I] Sub Authority number.
 249  *
 250  * RETURNS
 251  *   A pointer to The Sub Authority value of pSid.
 252  */
 253 LPDWORD WINAPI RtlSubAuthoritySid( PSID pSid, DWORD nSubAuthority )
 254 {
 255         return &(pSid->SubAuthority[nSubAuthority]);
 256 }
 257
 258 /**************************************************************************
 259  * RtlIdentifierAuthoritySid    [NTDLL.@]
 260  *
 261  * Return the Identifier Authority of a SID.
 262  *
 263  * PARAMS
 264  *   pSid [I] SID to get the Identifier Authority from.
 265  *
 266  * RETURNS
 267  *   A pointer to the Identifier Authority value of pSid.
 268  */
 269 PSID_IDENTIFIER_AUTHORITY WINAPI RtlIdentifierAuthoritySid( PSID pSid )
 270 {
 271         return &(pSid->IdentifierAuthority);
 272 }
 273
 274 /**************************************************************************
 275  *                 RtlSubAuthorityCountSid              [NTDLL.@]
 276  *
 277  * Get the number of Sub Authorities in a SID.
 278  *
 279  * PARAMS
 280  *   pSid [I] SID to get the count from.
 281  *
 282  * RETURNS
 283  *  A pointer to the Sub Authority count of pSid.
 284  */
 285 LPBYTE WINAPI RtlSubAuthorityCountSid(PSID pSid)
 286 {
 287         return &(pSid->SubAuthorityCount);
 288 }
 289
 290 /**************************************************************************
 291  *                 RtlCopySid                           [NTDLL.@]
 292  */
 293 DWORD WINAPI RtlCopySid( DWORD nDestinationSidLength, PSID pDestinationSid, PSID pSourceSid )
 294 {
 295         if (!pSourceSid || !RtlValidSid(pSourceSid) ||
 296             (nDestinationSidLength < RtlLengthSid(pSourceSid)))
 297           return FALSE;
 298
 299         if (nDestinationSidLength < (pSourceSid->SubAuthorityCount*4+8))
 300           return FALSE;
 301
 302         memmove(pDestinationSid, pSourceSid, pSourceSid->SubAuthorityCount*4+8);
 303         return TRUE;
 304 }
 305 /******************************************************************************
 306  * RtlValidSid [NTDLL.@]
 307  *
 308  * Determine if a SID is valid.
 309  *
 310  * PARAMS
 311  *   pSid [I] SID to check
 312  *
 313  * RETURNS
 314  *   TRUE if pSid is valid,
 315  *   FALSE otherwise.
 316  */
 317 BOOL WINAPI
 318 RtlValidSid( PSID pSid )
 319 {
 320     BOOL ret;
 321     __TRY
 322     {
 323         ret = TRUE;
 324         if (!pSid || pSid->Revision != SID_REVISION ||
 325             pSid->SubAuthorityCount > SID_MAX_SUB_AUTHORITIES)
 326         {
 327             ret = FALSE;
 328         }
 329     }
 330     __EXCEPT(page_fault)
 331     {
 332         WARN("(%p): invalid pointer!\n", pSid);
 333         return FALSE;
 334     }
 335     __ENDTRY
 336     return ret;
 337 }
 338
 339
 340 /*
 341  *      security descriptor functions
 342  */
 343
 344 /**************************************************************************
 345  * RtlCreateSecurityDescriptor                  [NTDLL.@]
 346  *
 347  * Initialise a SECURITY_DESCRIPTOR.
 348  *
 349  * PARAMS
 350  *  lpsd [O] Descriptor to initialise.
 351  *  rev  [I] Revision, must be set to SECURITY_DESCRIPTOR_REVISION.
 352  *
 353  * RETURNS:
 354  *  Success: STATUS_SUCCESS.
 355  *  Failure: STATUS_UNKNOWN_REVISION if rev is incorrect.
 356  */
 357 NTSTATUS WINAPI RtlCreateSecurityDescriptor(
 358         PSECURITY_DESCRIPTOR lpsd,
 359         DWORD rev)
 360 {
 361         if (rev!=SECURITY_DESCRIPTOR_REVISION)
 362                 return STATUS_UNKNOWN_REVISION;
 363         memset(lpsd,'\0',sizeof(*lpsd));
 364         lpsd->Revision = SECURITY_DESCRIPTOR_REVISION;
 365         return STATUS_SUCCESS;
 366 }
 367 /**************************************************************************
 368  * RtlValidSecurityDescriptor                   [NTDLL.@]
 369  *
 370  * Determine if a SECURITY_DESCRIPTOR is valid.
 371  *
 372  * PARAMS
 373  *  SecurityDescriptor [I] Descriptor to check.
 374  *
 375  * RETURNS
 376  *   Success: STATUS_SUCCESS.
 377  *   Failure: STATUS_INVALID_SECURITY_DESCR or STATUS_UNKNOWN_REVISION.
 378  */
 379 NTSTATUS WINAPI RtlValidSecurityDescriptor(
 380         PSECURITY_DESCRIPTOR SecurityDescriptor)
 381 {
 382         if ( ! SecurityDescriptor )
 383                 return STATUS_INVALID_SECURITY_DESCR;
 384         if ( SecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION )
 385                 return STATUS_UNKNOWN_REVISION;
 386
 387         return STATUS_SUCCESS;
 388 }
 389
 390 /**************************************************************************
 391  *  RtlLengthSecurityDescriptor                 [NTDLL.@]
 392  */
 393 ULONG WINAPI RtlLengthSecurityDescriptor(
 394         PSECURITY_DESCRIPTOR SecurityDescriptor)
 395 {
 396         ULONG Size;
 397         Size = SECURITY_DESCRIPTOR_MIN_LENGTH;
 398         if ( SecurityDescriptor == NULL )
 399                 return 0;
 400
 401         if ( SecurityDescriptor->Owner != NULL )
 402                 Size += SecurityDescriptor->Owner->SubAuthorityCount;
 403         if ( SecurityDescriptor->Group != NULL )
 404                 Size += SecurityDescriptor->Group->SubAuthorityCount;
 405
 406
 407         if ( SecurityDescriptor->Sacl != NULL )
 408                 Size += SecurityDescriptor->Sacl->AclSize;
 409         if ( SecurityDescriptor->Dacl != NULL )
 410                 Size += SecurityDescriptor->Dacl->AclSize;
 411
 412         return Size;
 413 }
 414
 415 /******************************************************************************
 416  *  RtlGetDaclSecurityDescriptor                [NTDLL.@]
 417  *
 418  */
 419 NTSTATUS WINAPI RtlGetDaclSecurityDescriptor(
 420         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 421         OUT PBOOLEAN lpbDaclPresent,
 422         OUT PACL *pDacl,
 423         OUT PBOOLEAN lpbDaclDefaulted)
 424 {
 425         TRACE("(%p,%p,%p,%p)\n",
 426         pSecurityDescriptor, lpbDaclPresent, *pDacl, lpbDaclDefaulted);
 427
 428         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 429           return STATUS_UNKNOWN_REVISION ;
 430
 431         if ( (*lpbDaclPresent = (SE_DACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 432         {
 433           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 434           { *pDacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Dacl);
 435           }
 436           else
 437           { *pDacl = pSecurityDescriptor->Dacl;
 438           }
 439         }
 440
 441         *lpbDaclDefaulted = (( SE_DACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 442
 443         return STATUS_SUCCESS;
 444 }
 445
 446 /**************************************************************************
 447  *  RtlSetDaclSecurityDescriptor                [NTDLL.@]
 448  */
 449 NTSTATUS WINAPI RtlSetDaclSecurityDescriptor (
 450         PSECURITY_DESCRIPTOR lpsd,
 451         BOOLEAN daclpresent,
 452         PACL dacl,
 453         BOOLEAN dacldefaulted )
 454 {
 455         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 456                 return STATUS_UNKNOWN_REVISION;
 457         if (lpsd->Control & SE_SELF_RELATIVE)
 458                 return STATUS_INVALID_SECURITY_DESCR;
 459
 460         if (!daclpresent)
 461         {       lpsd->Control &= ~SE_DACL_PRESENT;
 462                 return TRUE;
 463         }
 464
 465         lpsd->Control |= SE_DACL_PRESENT;
 466         lpsd->Dacl = dacl;
 467
 468         if (dacldefaulted)
 469                 lpsd->Control |= SE_DACL_DEFAULTED;
 470         else
 471                 lpsd->Control &= ~SE_DACL_DEFAULTED;
 472
 473         return STATUS_SUCCESS;
 474 }
 475
 476 /******************************************************************************
 477  *  RtlGetSaclSecurityDescriptor                [NTDLL.@]
 478  *
 479  */
 480 NTSTATUS WINAPI RtlGetSaclSecurityDescriptor(
 481         IN PSECURITY_DESCRIPTOR pSecurityDescriptor,
 482         OUT PBOOLEAN lpbSaclPresent,
 483         OUT PACL *pSacl,
 484         OUT PBOOLEAN lpbSaclDefaulted)
 485 {
 486         TRACE("(%p,%p,%p,%p)\n",
 487         pSecurityDescriptor, lpbSaclPresent, *pSacl, lpbSaclDefaulted);
 488
 489         if (pSecurityDescriptor->Revision != SECURITY_DESCRIPTOR_REVISION)
 490           return STATUS_UNKNOWN_REVISION ;
 491
 492         if ( (*lpbSaclPresent = (SE_SACL_PRESENT & pSecurityDescriptor->Control) ? 1 : 0) )
 493         {
 494           if ( SE_SELF_RELATIVE & pSecurityDescriptor->Control)
 495           { *pSacl = (PACL) ((LPBYTE)pSecurityDescriptor + (DWORD)pSecurityDescriptor->Sacl);
 496           }
 497           else
 498           { *pSacl = pSecurityDescriptor->Sacl;
 499           }
 500         }
 501
 502         *lpbSaclDefaulted = (( SE_SACL_DEFAULTED & pSecurityDescriptor->Control ) ? 1 : 0);
 503
 504         return STATUS_SUCCESS;
 505 }
 506
 507 /**************************************************************************
 508  * RtlSetSaclSecurityDescriptor                 [NTDLL.@]
 509  */
 510 NTSTATUS WINAPI RtlSetSaclSecurityDescriptor (
 511         PSECURITY_DESCRIPTOR lpsd,
 512         BOOLEAN saclpresent,
 513         PACL sacl,
 514         BOOLEAN sacldefaulted)
 515 {
 516         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 517                 return STATUS_UNKNOWN_REVISION;
 518         if (lpsd->Control & SE_SELF_RELATIVE)
 519                 return STATUS_INVALID_SECURITY_DESCR;
 520         if (!saclpresent) {
 521                 lpsd->Control &= ~SE_SACL_PRESENT;
 522                 return 0;
 523         }
 524         lpsd->Control |= SE_SACL_PRESENT;
 525         lpsd->Sacl = sacl;
 526         if (sacldefaulted)
 527                 lpsd->Control |= SE_SACL_DEFAULTED;
 528         else
 529                 lpsd->Control &= ~SE_SACL_DEFAULTED;
 530         return STATUS_SUCCESS;
 531 }
 532
 533 /**************************************************************************
 534  * RtlGetOwnerSecurityDescriptor                [NTDLL.@]
 535  */
 536 NTSTATUS WINAPI RtlGetOwnerSecurityDescriptor(
 537         PSECURITY_DESCRIPTOR SecurityDescriptor,
 538         PSID *Owner,
 539         PBOOLEAN OwnerDefaulted)
 540 {
 541         if ( !SecurityDescriptor  || !Owner || !OwnerDefaulted )
 542                 return STATUS_INVALID_PARAMETER;
 543
 544         *Owner = SecurityDescriptor->Owner;
 545         if ( *Owner != NULL )  {
 546                 if ( SecurityDescriptor->Control & SE_OWNER_DEFAULTED )
 547                         *OwnerDefaulted = TRUE;
 548                 else
 549                         *OwnerDefaulted = FALSE;
 550         }
 551         return STATUS_SUCCESS;
 552 }
 553
 554 /**************************************************************************
 555  *                 RtlSetOwnerSecurityDescriptor                [NTDLL.@]
 556  */
 557 NTSTATUS WINAPI RtlSetOwnerSecurityDescriptor(
 558         PSECURITY_DESCRIPTOR lpsd,
 559         PSID owner,
 560         BOOLEAN ownerdefaulted)
 561 {
 562         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 563                 return STATUS_UNKNOWN_REVISION;
 564         if (lpsd->Control & SE_SELF_RELATIVE)
 565                 return STATUS_INVALID_SECURITY_DESCR;
 566
 567         lpsd->Owner = owner;
 568         if (ownerdefaulted)
 569                 lpsd->Control |= SE_OWNER_DEFAULTED;
 570         else
 571                 lpsd->Control &= ~SE_OWNER_DEFAULTED;
 572         return STATUS_SUCCESS;
 573 }
 574
 575 /**************************************************************************
 576  *                 RtlSetGroupSecurityDescriptor                [NTDLL.@]
 577  */
 578 NTSTATUS WINAPI RtlSetGroupSecurityDescriptor (
 579         PSECURITY_DESCRIPTOR lpsd,
 580         PSID group,
 581         BOOLEAN groupdefaulted)
 582 {
 583         if (lpsd->Revision!=SECURITY_DESCRIPTOR_REVISION)
 584                 return STATUS_UNKNOWN_REVISION;
 585         if (lpsd->Control & SE_SELF_RELATIVE)
 586                 return STATUS_INVALID_SECURITY_DESCR;
 587
 588         lpsd->Group = group;
 589         if (groupdefaulted)
 590                 lpsd->Control |= SE_GROUP_DEFAULTED;
 591         else
 592                 lpsd->Control &= ~SE_GROUP_DEFAULTED;
 593         return STATUS_SUCCESS;
 594 }
 595 /**************************************************************************
 596  *                 RtlGetGroupSecurityDescriptor                [NTDLL.@]
 597  */
 598 NTSTATUS WINAPI RtlGetGroupSecurityDescriptor(
 599         PSECURITY_DESCRIPTOR SecurityDescriptor,
 600         PSID *Group,
 601         PBOOLEAN GroupDefaulted)
 602 {
 603         if ( !SecurityDescriptor || !Group || !GroupDefaulted )
 604                 return STATUS_INVALID_PARAMETER;
 605
 606         *Group = SecurityDescriptor->Group;
 607         if ( *Group != NULL )  {
 608                 if ( SecurityDescriptor->Control & SE_GROUP_DEFAULTED )
 609                         *GroupDefaulted = TRUE;
 610                 else
 611                         *GroupDefaulted = FALSE;
 612         }
 613         return STATUS_SUCCESS;
 614 }
 615
 616 /**************************************************************************
 617  *                 RtlMakeSelfRelativeSD                [NTDLL.@]
 618  */
 619 NTSTATUS WINAPI RtlMakeSelfRelativeSD(
 620         IN PSECURITY_DESCRIPTOR pAbsoluteSecurityDescriptor,
 621         IN PSECURITY_DESCRIPTOR pSelfRelativeSecurityDescriptor,
 622         IN OUT LPDWORD lpdwBufferLength)
 623 {
 624         FIXME("(%p,%p,%p(%lu))\n", pAbsoluteSecurityDescriptor,
 625         pSelfRelativeSecurityDescriptor, lpdwBufferLength,*lpdwBufferLength);
 626         return STATUS_SUCCESS;
 627 }
 628
 629 /*
 630  *      access control list's
 631  */
 632
 633 /**************************************************************************
 634  *                 RtlCreateAcl                         [NTDLL.@]
 635  *
 636  * NOTES
 637  *    This should return NTSTATUS
 638  */
 639 NTSTATUS WINAPI RtlCreateAcl(PACL acl,DWORD size,DWORD rev)
 640 {
 641         TRACE("%p 0x%08lx 0x%08lx\n", acl, size, rev);
 642
 643         if (rev!=ACL_REVISION)
 644                 return STATUS_INVALID_PARAMETER;
 645         if (size<sizeof(ACL))
 646                 return STATUS_BUFFER_TOO_SMALL;
 647         if (size>0xFFFF)
 648                 return STATUS_INVALID_PARAMETER;
 649
 650         memset(acl,'\0',sizeof(ACL));
 651         acl->AclRevision        = rev;
 652         acl->AclSize            = size;
 653         acl->AceCount           = 0;
 654         return STATUS_SUCCESS;
 655 }
 656
 657 /**************************************************************************
 658  *                 RtlFirstFreeAce                      [NTDLL.@]
 659  * looks for the AceCount+1 ACE, and if it is still within the alloced
 660  * ACL, return a pointer to it
 661  */
 662 BOOLEAN WINAPI RtlFirstFreeAce(
 663         PACL acl,
 664         PACE_HEADER *x)
 665 {
 666         PACE_HEADER     ace;
 667         int             i;
 668
 669         *x = 0;
 670         ace = (PACE_HEADER)(acl+1);
 671         for (i=0;i<acl->AceCount;i++) {
 672                 if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 673                         return 0;
 674                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 675         }
 676         if ((DWORD)ace>=(((DWORD)acl)+acl->AclSize))
 677                 return 0;
 678         *x = ace;
 679         return 1;
 680 }
 681
 682 /**************************************************************************
 683  *                 RtlAddAce                            [NTDLL.@]
 684  */
 685 NTSTATUS WINAPI RtlAddAce(
 686         PACL acl,
 687         DWORD rev,
 688         DWORD xnrofaces,
 689         PACE_HEADER acestart,
 690         DWORD acelen)
 691 {
 692         PACE_HEADER     ace,targetace;
 693         int             nrofaces;
 694
 695         if (acl->AclRevision != ACL_REVISION)
 696                 return STATUS_INVALID_PARAMETER;
 697         if (!RtlFirstFreeAce(acl,&targetace))
 698                 return STATUS_INVALID_PARAMETER;
 699         nrofaces=0;ace=acestart;
 700         while (((DWORD)ace-(DWORD)acestart)<acelen) {
 701                 nrofaces++;
 702                 ace = (PACE_HEADER)(((BYTE*)ace)+ace->AceSize);
 703         }
 704         if ((DWORD)targetace+acelen>(DWORD)acl+acl->AclSize) /* too much aces */
 705                 return STATUS_INVALID_PARAMETER;
 706         memcpy((LPBYTE)targetace,acestart,acelen);
 707         acl->AceCount+=nrofaces;
 708         return STATUS_SUCCESS;
 709 }
 710
 711 /******************************************************************************
 712  *  RtlAddAccessAllowedAce              [NTDLL.@]
 713  */
 714 BOOL WINAPI RtlAddAccessAllowedAce(
 715         IN OUT PACL pAcl,
 716         IN DWORD dwAceRevision,
 717         IN DWORD AccessMask,
 718         IN PSID pSid)
 719 {
 720         FIXME("(%p,0x%08lx,0x%08lx,%p),stub!\n",
 721         pAcl, dwAceRevision, AccessMask, pSid);
 722         return TRUE;
 723 }
 724
 725 /******************************************************************************
 726  *  RtlGetAce           [NTDLL.@]
 727  */
 728 DWORD WINAPI RtlGetAce(PACL pAcl,DWORD dwAceIndex,LPVOID *pAce )
 729 {
 730         FIXME("(%p,%ld,%p),stub!\n",pAcl,dwAceIndex,pAce);
 731         return 0;
 732 }
 733
 734 /*
 735  *      misc
 736  */
 737
 738 /******************************************************************************
 739  *  RtlAdjustPrivilege          [NTDLL.@]
 740  */
 741 DWORD WINAPI RtlAdjustPrivilege(DWORD x1,DWORD x2,DWORD x3,DWORD x4)
 742 {
 743         FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4);
 744         return 0;
 745 }
 746
 747 /******************************************************************************
 748  *  RtlImpersonateSelf          [NTDLL.@]
 749  */
 750 BOOL WINAPI
 751 RtlImpersonateSelf(SECURITY_IMPERSONATION_LEVEL ImpersonationLevel)
 752 {
 753         FIXME("(%08x), stub\n", ImpersonationLevel);
 754         return TRUE;
 755 }
 756
 757 /******************************************************************************
 758  *  NtAccessCheck               [NTDLL.@]
 759  *  ZwAccessCheck               [NTDLL.@]
 760  */
 761 NTSTATUS WINAPI
 762 NtAccessCheck(
 763         IN PSECURITY_DESCRIPTOR SecurityDescriptor,
 764         IN HANDLE ClientToken,
 765         IN ACCESS_MASK DesiredAccess,
 766         IN PGENERIC_MAPPING GenericMapping,
 767         OUT PPRIVILEGE_SET PrivilegeSet,
 768         OUT PULONG ReturnLength,
 769         OUT PULONG GrantedAccess,
 770         OUT PBOOLEAN AccessStatus)
 771 {
 772         FIXME("(%p, %p, %08lx, %p, %p, %p, %p, %p), stub\n",
 773           SecurityDescriptor, ClientToken, DesiredAccess, GenericMapping,
 774           PrivilegeSet, ReturnLength, GrantedAccess, AccessStatus);
 775         *AccessStatus = TRUE;
 776         return STATUS_SUCCESS;
 777 }
 778
 779 /******************************************************************************
 780  *  NtSetSecurityObject         [NTDLL.@]
 781  */
 782 NTSTATUS WINAPI
 783 NtSetSecurityObject(
 784         IN HANDLE Handle,
 785         IN SECURITY_INFORMATION SecurityInformation,
 786         IN PSECURITY_DESCRIPTOR SecurityDescriptor)
 787 {
 788         FIXME("%p 0x%08lx %p\n", Handle, SecurityInformation, SecurityDescriptor);
 789         return STATUS_SUCCESS;
 790 }
 791
 792 /******************************************************************************
 793  * RtlGetControlSecurityDescriptor (NTDLL.@)
 794  */
 795
 796 NTSTATUS WINAPI RtlGetControlSecurityDescriptor(
 797         PSECURITY_DESCRIPTOR  pSecurityDescriptor,
 798         PSECURITY_DESCRIPTOR_CONTROL pControl,
 799         LPDWORD lpdwRevision)
 800 {
 801         FIXME("(%p,%p,%p),stub!\n",pSecurityDescriptor,pControl,lpdwRevision);
 802         return STATUS_SUCCESS;
 803 }
 804
 805 /******************************************************************************
 806  * RtlConvertSidToUnicodeString (NTDLL.@)
 807  *
 808  * The returned SID is used to access the USER registry hive usually
 809  *
 810  * the native function returns something like
 811  * "S-1-5-21-0000000000-000000000-0000000000-500";
 812  */
 813 NTSTATUS WINAPI RtlConvertSidToUnicodeString(
 814        PUNICODE_STRING String,
 815        PSID Sid,
 816        BOOLEAN AllocateString)
 817 {
 818         const char *p = wine_get_user_name();
 819         NTSTATUS status;
 820         ANSI_STRING AnsiStr;
 821
 822         FIXME("(%p %p %u)\n", String, Sid, AllocateString);
 823
 824         RtlInitAnsiString(&AnsiStr, p);
 825         status = RtlAnsiStringToUnicodeString(String, &AnsiStr, AllocateString);
 826
 827         TRACE("%s (%u %u)\n",debugstr_w(String->Buffer),String->Length,String->MaximumLength);
 828         return status;
 829 }