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   1 /*
   2  *      Object management functions
   3  *
   4  * Copyright 1999, 2000 Juergen Schmied
   5  * Copyright 2005 Vitaliy Margolen
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #ifdef HAVE_IO_H
  28 # include <io.h>
  29 #endif
  30 #ifdef HAVE_UNISTD_H
  31 # include <unistd.h>
  32 #endif
  33
  34 #include "ntstatus.h"
  35 #define WIN32_NO_STATUS
  36 #include "wine/debug.h"
  37 #include "windef.h"
  38 #include "winternl.h"
  39 #include "ntdll_misc.h"
  40 #include "wine/server.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
  43
  44
  45 /*
  46  *      Generic object functions
  47  */
  48
  49 /******************************************************************************
  50  * NtQueryObject [NTDLL.@]
  51  * ZwQueryObject [NTDLL.@]
  52  */
  53 NTSTATUS WINAPI NtQueryObject(IN HANDLE handle,
  54                               IN OBJECT_INFORMATION_CLASS info_class,
  55                               OUT PVOID ptr, IN ULONG len, OUT PULONG used_len)
  56 {
  57     NTSTATUS status;
  58
  59     TRACE("(%p,0x%08x,%p,0x%08x,%p): stub\n",
  60           handle, info_class, ptr, len, used_len);
  61
  62     if (used_len) *used_len = 0;
  63
  64     switch (info_class)
  65     {
  66     case ObjectBasicInformation:
  67         {
  68             POBJECT_BASIC_INFORMATION p = (POBJECT_BASIC_INFORMATION)ptr;
  69
  70             if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
  71
  72             SERVER_START_REQ( get_object_info )
  73             {
  74                 req->handle = handle;
  75                 status = wine_server_call( req );
  76                 if (status == STATUS_SUCCESS)
  77                 {
  78                     memset( p, 0, sizeof(*p) );
  79                     p->GrantedAccess = reply->access;
  80                     p->PointerCount = reply->ref_count;
  81                     p->HandleCount = 1; /* at least one */
  82                     if (used_len) *used_len = sizeof(*p);
  83                 }
  84             }
  85             SERVER_END_REQ;
  86         }
  87         break;
  88     case ObjectDataInformation:
  89         {
  90             OBJECT_DATA_INFORMATION* p = (OBJECT_DATA_INFORMATION*)ptr;
  91
  92             if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
  93
  94             SERVER_START_REQ( set_handle_info )
  95             {
  96                 req->handle = handle;
  97                 req->flags  = 0;
  98                 req->mask   = 0;
  99                 status = wine_server_call( req );
 100                 if (status == STATUS_SUCCESS)
 101                 {
 102                     p->InheritHandle = (reply->old_flags & HANDLE_FLAG_INHERIT) ? TRUE : FALSE;
 103                     p->ProtectFromClose = (reply->old_flags & HANDLE_FLAG_PROTECT_FROM_CLOSE) ? TRUE : FALSE;
 104                     if (used_len) *used_len = sizeof(*p);
 105                 }
 106             }
 107             SERVER_END_REQ;
 108         }
 109         break;
 110     default:
 111         FIXME("Unsupported information class %u\n", info_class);
 112         status = STATUS_NOT_IMPLEMENTED;
 113         break;
 114     }
 115     return status;
 116 }
 117
 118 /******************************************************************
 119  *              NtSetInformationObject [NTDLL.@]
 120  *              ZwSetInformationObject [NTDLL.@]
 121  *
 122  */
 123 NTSTATUS WINAPI NtSetInformationObject(IN HANDLE handle,
 124                                        IN OBJECT_INFORMATION_CLASS info_class,
 125                                        IN PVOID ptr, IN ULONG len)
 126 {
 127     NTSTATUS status;
 128
 129     TRACE("(%p,0x%08x,%p,0x%08x): stub\n",
 130           handle, info_class, ptr, len);
 131
 132     switch (info_class)
 133     {
 134     case ObjectDataInformation:
 135         {
 136             OBJECT_DATA_INFORMATION* p = (OBJECT_DATA_INFORMATION*)ptr;
 137
 138             if (len < sizeof(*p)) return STATUS_INVALID_BUFFER_SIZE;
 139
 140             SERVER_START_REQ( set_handle_info )
 141             {
 142                 req->handle = handle;
 143                 req->flags  = 0;
 144                 req->mask   = HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE;
 145                 if (p->InheritHandle)    req->flags |= HANDLE_FLAG_INHERIT;
 146                 if (p->ProtectFromClose) req->flags |= HANDLE_FLAG_PROTECT_FROM_CLOSE;
 147                 status = wine_server_call( req );
 148             }
 149             SERVER_END_REQ;
 150         }
 151         break;
 152     default:
 153         FIXME("Unsupported information class %u\n", info_class);
 154         status = STATUS_NOT_IMPLEMENTED;
 155         break;
 156     }
 157     return status;
 158 }
 159
 160 /******************************************************************************
 161  *  NtQuerySecurityObject       [NTDLL.@]
 162  *
 163  * An ntdll analogue to GetKernelObjectSecurity().
 164  *
 165  * NOTES
 166  *  only the lowest 4 bit of SecurityObjectInformationClass are used
 167  *  0x7-0xf returns STATUS_ACCESS_DENIED (even running with system privileges)
 168  *
 169  * FIXME
 170  *  We are constructing a fake sid (Administrators:Full, System:Full, Everyone:Read)
 171  */
 172 NTSTATUS WINAPI
 173 NtQuerySecurityObject(
 174         IN HANDLE Object,
 175         IN SECURITY_INFORMATION RequestedInformation,
 176         OUT PSECURITY_DESCRIPTOR pSecurityDesriptor,
 177         IN ULONG Length,
 178         OUT PULONG ResultLength)
 179 {
 180         static const SID_IDENTIFIER_AUTHORITY localSidAuthority = {SECURITY_NT_AUTHORITY};
 181         static const SID_IDENTIFIER_AUTHORITY worldSidAuthority = {SECURITY_WORLD_SID_AUTHORITY};
 182         BYTE Buffer[256];
 183         PISECURITY_DESCRIPTOR_RELATIVE psd = (PISECURITY_DESCRIPTOR_RELATIVE)Buffer;
 184         UINT BufferIndex = sizeof(SECURITY_DESCRIPTOR_RELATIVE);
 185
 186         FIXME("(%p,0x%08x,%p,0x%08x,%p) stub!\n",
 187         Object, RequestedInformation, pSecurityDesriptor, Length, ResultLength);
 188
 189         RequestedInformation &= 0x0000000f;
 190
 191         if (RequestedInformation & SACL_SECURITY_INFORMATION) return STATUS_ACCESS_DENIED;
 192
 193         ZeroMemory(Buffer, 256);
 194         RtlCreateSecurityDescriptor((PSECURITY_DESCRIPTOR)psd, SECURITY_DESCRIPTOR_REVISION);
 195         psd->Control = SE_SELF_RELATIVE |
 196           ((RequestedInformation & DACL_SECURITY_INFORMATION) ? SE_DACL_PRESENT:0);
 197
 198         /* owner: administrator S-1-5-20-220*/
 199         if (OWNER_SECURITY_INFORMATION & RequestedInformation)
 200         {
 201           SID* psid = (SID*)&(Buffer[BufferIndex]);
 202
 203           psd->Owner = BufferIndex;
 204           BufferIndex += RtlLengthRequiredSid(2);
 205
 206           psid->Revision = SID_REVISION;
 207           psid->SubAuthorityCount = 2;
 208           psid->IdentifierAuthority = localSidAuthority;
 209           psid->SubAuthority[0] = SECURITY_BUILTIN_DOMAIN_RID;
 210           psid->SubAuthority[1] = DOMAIN_ALIAS_RID_ADMINS;
 211         }
 212
 213         /* group: built in domain S-1-5-12 */
 214         if (GROUP_SECURITY_INFORMATION & RequestedInformation)
 215         {
 216           SID* psid = (SID*) &(Buffer[BufferIndex]);
 217
 218           psd->Group = BufferIndex;
 219           BufferIndex += RtlLengthRequiredSid(1);
 220
 221           psid->Revision = SID_REVISION;
 222           psid->SubAuthorityCount = 1;
 223           psid->IdentifierAuthority = localSidAuthority;
 224           psid->SubAuthority[0] = SECURITY_LOCAL_SYSTEM_RID;
 225         }
 226
 227         /* discretionary ACL */
 228         if (DACL_SECURITY_INFORMATION & RequestedInformation)
 229         {
 230           /* acl header */
 231           PACL pacl = (PACL)&(Buffer[BufferIndex]);
 232           PACCESS_ALLOWED_ACE pace;
 233           SID* psid;
 234
 235           psd->Dacl = BufferIndex;
 236
 237           pacl->AclRevision = MIN_ACL_REVISION;
 238           pacl->AceCount = 3;
 239           pacl->AclSize = BufferIndex; /* storing the start index temporary */
 240
 241           BufferIndex += sizeof(ACL);
 242
 243           /* ACE System - full access */
 244           pace = (PACCESS_ALLOWED_ACE)&(Buffer[BufferIndex]);
 245           BufferIndex += sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD);
 246
 247           pace->Header.AceType = ACCESS_ALLOWED_ACE_TYPE;
 248           pace->Header.AceFlags = CONTAINER_INHERIT_ACE;
 249           pace->Header.AceSize = sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD) + RtlLengthRequiredSid(1);
 250           pace->Mask = DELETE | READ_CONTROL | WRITE_DAC | WRITE_OWNER  | 0x3f;
 251           pace->SidStart = BufferIndex;
 252
 253           /* SID S-1-5-12 (System) */
 254           psid = (SID*)&(Buffer[BufferIndex]);
 255
 256           BufferIndex += RtlLengthRequiredSid(1);
 257
 258           psid->Revision = SID_REVISION;
 259           psid->SubAuthorityCount = 1;
 260           psid->IdentifierAuthority = localSidAuthority;
 261           psid->SubAuthority[0] = SECURITY_LOCAL_SYSTEM_RID;
 262
 263           /* ACE Administrators - full access*/
 264           pace = (PACCESS_ALLOWED_ACE) &(Buffer[BufferIndex]);
 265           BufferIndex += sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD);
 266
 267           pace->Header.AceType = ACCESS_ALLOWED_ACE_TYPE;
 268           pace->Header.AceFlags = CONTAINER_INHERIT_ACE;
 269           pace->Header.AceSize = sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD) + RtlLengthRequiredSid(2);
 270           pace->Mask = DELETE | READ_CONTROL | WRITE_DAC | WRITE_OWNER  | 0x3f;
 271           pace->SidStart = BufferIndex;
 272
 273           /* S-1-5-12 (Administrators) */
 274           psid = (SID*)&(Buffer[BufferIndex]);
 275
 276           BufferIndex += RtlLengthRequiredSid(2);
 277
 278           psid->Revision = SID_REVISION;
 279           psid->SubAuthorityCount = 2;
 280           psid->IdentifierAuthority = localSidAuthority;
 281           psid->SubAuthority[0] = SECURITY_BUILTIN_DOMAIN_RID;
 282           psid->SubAuthority[1] = DOMAIN_ALIAS_RID_ADMINS;
 283
 284           /* ACE Everyone - read access */
 285           pace = (PACCESS_ALLOWED_ACE)&(Buffer[BufferIndex]);
 286           BufferIndex += sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD);
 287
 288           pace->Header.AceType = ACCESS_ALLOWED_ACE_TYPE;
 289           pace->Header.AceFlags = CONTAINER_INHERIT_ACE;
 290           pace->Header.AceSize = sizeof(ACCESS_ALLOWED_ACE)-sizeof(DWORD) + RtlLengthRequiredSid(1);
 291           pace->Mask = READ_CONTROL| 0x19;
 292           pace->SidStart = BufferIndex;
 293
 294           /* SID S-1-1-0 (Everyone) */
 295           psid = (SID*)&(Buffer[BufferIndex]);
 296
 297           BufferIndex += RtlLengthRequiredSid(1);
 298
 299           psid->Revision = SID_REVISION;
 300           psid->SubAuthorityCount = 1;
 301           psid->IdentifierAuthority = worldSidAuthority;
 302           psid->SubAuthority[0] = 0;
 303
 304           /* calculate used bytes */
 305           pacl->AclSize = BufferIndex - pacl->AclSize;
 306         }
 307         *ResultLength = BufferIndex;
 308         TRACE("len=%u\n", *ResultLength);
 309         if (Length < *ResultLength) return STATUS_BUFFER_TOO_SMALL;
 310         memcpy(pSecurityDesriptor, Buffer, *ResultLength);
 311
 312         return STATUS_SUCCESS;
 313 }
 314
 315
 316 /******************************************************************************
 317  *  NtDuplicateObject           [NTDLL.@]
 318  *  ZwDuplicateObject           [NTDLL.@]
 319  */
 320 NTSTATUS WINAPI NtDuplicateObject( HANDLE source_process, HANDLE source,
 321                                    HANDLE dest_process, PHANDLE dest,
 322                                    ACCESS_MASK access, ULONG attributes, ULONG options )
 323 {
 324     NTSTATUS ret;
 325     SERVER_START_REQ( dup_handle )
 326     {
 327         req->src_process = source_process;
 328         req->src_handle  = source;
 329         req->dst_process = dest_process;
 330         req->access      = access;
 331         req->attributes  = attributes;
 332         req->options     = options;
 333
 334         if (!(ret = wine_server_call( req )))
 335         {
 336             if (dest) *dest = reply->handle;
 337             if (reply->closed)
 338             {
 339                 if (reply->self)
 340                 {
 341                     int fd = server_remove_fd_from_cache( source );
 342                     if (fd != -1) close( fd );
 343                 }
 344             }
 345             else if (options & DUPLICATE_CLOSE_SOURCE)
 346                 WARN( "failed to close handle %p in process %p\n", source, source_process );
 347         }
 348     }
 349     SERVER_END_REQ;
 350     return ret;
 351 }
 352
 353 /**************************************************************************
 354  *                 NtClose                              [NTDLL.@]
 355  *
 356  * Close a handle reference to an object.
 357  *
 358  * PARAMS
 359  *  Handle [I] handle to close
 360  *
 361  * RETURNS
 362  *  Success: ERROR_SUCCESS.
 363  *  Failure: An NTSTATUS error code.
 364  */
 365 NTSTATUS WINAPI NtClose( HANDLE Handle )
 366 {
 367     NTSTATUS ret;
 368     int fd = server_remove_fd_from_cache( Handle );
 369
 370     SERVER_START_REQ( close_handle )
 371     {
 372         req->handle = Handle;
 373         ret = wine_server_call( req );
 374     }
 375     SERVER_END_REQ;
 376     if (fd != -1) close( fd );
 377     return ret;
 378 }
 379
 380 /*
 381  *      Directory functions
 382  */
 383
 384 /**************************************************************************
 385  * NtOpenDirectoryObject [NTDLL.@]
 386  * ZwOpenDirectoryObject [NTDLL.@]
 387  *
 388  * Open a namespace directory object.
 389  *
 390  * PARAMS
 391  *  DirectoryHandle  [O] Destination for the new directory handle
 392  *  DesiredAccess    [I] Desired access to the directory
 393  *  ObjectAttributes [I] Structure describing the directory
 394  *
 395  * RETURNS
 396  *  Success: ERROR_SUCCESS.
 397  *  Failure: An NTSTATUS error code.
 398  */
 399 NTSTATUS WINAPI NtOpenDirectoryObject(PHANDLE DirectoryHandle, ACCESS_MASK DesiredAccess,
 400                                       POBJECT_ATTRIBUTES ObjectAttributes)
 401 {
 402     NTSTATUS ret;
 403     TRACE("(%p,0x%08x)\n", DirectoryHandle, DesiredAccess);
 404     dump_ObjectAttributes(ObjectAttributes);
 405
 406     if (!DirectoryHandle) return STATUS_ACCESS_VIOLATION;
 407     if (!ObjectAttributes) return STATUS_INVALID_PARAMETER;
 408     /* Have to test it here because server won't know difference between
 409      * ObjectName == NULL and ObjectName == "" */
 410     if (!ObjectAttributes->ObjectName)
 411     {
 412         if (ObjectAttributes->RootDirectory)
 413             return STATUS_OBJECT_NAME_INVALID;
 414         else
 415             return STATUS_OBJECT_PATH_SYNTAX_BAD;
 416     }
 417
 418     SERVER_START_REQ(open_directory)
 419     {
 420         req->access = DesiredAccess;
 421         req->attributes = ObjectAttributes->Attributes;
 422         req->rootdir = ObjectAttributes->RootDirectory;
 423         if (ObjectAttributes->ObjectName)
 424             wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
 425                                  ObjectAttributes->ObjectName->Length);
 426         ret = wine_server_call( req );
 427         *DirectoryHandle = reply->handle;
 428     }
 429     SERVER_END_REQ;
 430     return ret;
 431 }
 432
 433 /******************************************************************************
 434  *  NtCreateDirectoryObject     [NTDLL.@]
 435  *  ZwCreateDirectoryObject     [NTDLL.@]
 436  *
 437  * Create a namespace directory object.
 438  *
 439  * PARAMS
 440  *  DirectoryHandle  [O] Destination for the new directory handle
 441  *  DesiredAccess    [I] Desired access to the directory
 442  *  ObjectAttributes [I] Structure describing the directory
 443  *
 444  * RETURNS
 445  *  Success: ERROR_SUCCESS.
 446  *  Failure: An NTSTATUS error code.
 447  */
 448 NTSTATUS WINAPI NtCreateDirectoryObject(PHANDLE DirectoryHandle, ACCESS_MASK DesiredAccess,
 449                                         POBJECT_ATTRIBUTES ObjectAttributes)
 450 {
 451     NTSTATUS ret;
 452     TRACE("(%p,0x%08x)\n", DirectoryHandle, DesiredAccess);
 453     dump_ObjectAttributes(ObjectAttributes);
 454
 455     if (!DirectoryHandle) return STATUS_ACCESS_VIOLATION;
 456
 457     SERVER_START_REQ(create_directory)
 458     {
 459         req->access = DesiredAccess;
 460         req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
 461         req->rootdir = ObjectAttributes ? ObjectAttributes->RootDirectory : 0;
 462         if (ObjectAttributes && ObjectAttributes->ObjectName)
 463             wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
 464                                  ObjectAttributes->ObjectName->Length);
 465         ret = wine_server_call( req );
 466         *DirectoryHandle = reply->handle;
 467     }
 468     SERVER_END_REQ;
 469     return ret;
 470 }
 471
 472 /******************************************************************************
 473  * NtQueryDirectoryObject [NTDLL.@]
 474  * ZwQueryDirectoryObject [NTDLL.@]
 475  *
 476  * Read information from a namespace directory.
 477  *
 478  * PARAMS
 479  *  DirectoryHandle   [I]   Handle to a directory object
 480  *  Buffer            [O]   Buffer to hold the read data
 481  *  BufferLength      [I]   Size of the buffer in bytes
 482  *  ReturnSingleEntry [I]   If TRUE, return a single entry, if FALSE, return as many as fit in the buffer
 483  *  RestartScan       [I]   If TRUE, start scanning from the start, if FALSE, scan from Context
 484  *  Context           [I/O] Indicates what point of the directory the scan is at
 485  *  ReturnLength      [O]   Caller supplied storage for the number of bytes written (or NULL)
 486  *
 487  * RETURNS
 488  *  Success: ERROR_SUCCESS.
 489  *  Failure: An NTSTATUS error code.
 490  */
 491 NTSTATUS WINAPI NtQueryDirectoryObject(IN HANDLE DirectoryHandle, OUT PDIRECTORY_BASIC_INFORMATION Buffer,
 492                                        IN ULONG BufferLength, IN BOOLEAN ReturnSingleEntry, IN BOOLEAN RestartScan,
 493                                        IN OUT PULONG Context, OUT PULONG ReturnLength OPTIONAL)
 494 {
 495     FIXME("(%p,%p,0x%08x,0x%08x,0x%08x,%p,%p), stub\n", DirectoryHandle, Buffer, BufferLength, ReturnSingleEntry,
 496           RestartScan, Context, ReturnLength);
 497
 498     return STATUS_NOT_IMPLEMENTED;
 499 }
 500
 501 /*
 502  *      Link objects
 503  */
 504
 505 /******************************************************************************
 506  *  NtOpenSymbolicLinkObject    [NTDLL.@]
 507  *  ZwOpenSymbolicLinkObject    [NTDLL.@]
 508  *
 509  * Open a namespace symbolic link object.
 510  *
 511  * PARAMS
 512  *  LinkHandle       [O] Destination for the new symbolic link handle
 513  *  DesiredAccess    [I] Desired access to the symbolic link
 514  *  ObjectAttributes [I] Structure describing the symbolic link
 515  *
 516  * RETURNS
 517  *  Success: ERROR_SUCCESS.
 518  *  Failure: An NTSTATUS error code.
 519  */
 520 NTSTATUS WINAPI NtOpenSymbolicLinkObject(OUT PHANDLE LinkHandle, IN ACCESS_MASK DesiredAccess,
 521                                          IN POBJECT_ATTRIBUTES ObjectAttributes)
 522 {
 523     NTSTATUS ret;
 524     TRACE("(%p,0x%08x,%p)\n",LinkHandle, DesiredAccess, ObjectAttributes);
 525     dump_ObjectAttributes(ObjectAttributes);
 526
 527     if (!LinkHandle) return STATUS_ACCESS_VIOLATION;
 528     if (!ObjectAttributes) return STATUS_INVALID_PARAMETER;
 529     /* Have to test it here because server won't know difference between
 530      * ObjectName == NULL and ObjectName == "" */
 531     if (!ObjectAttributes->ObjectName)
 532     {
 533         if (ObjectAttributes->RootDirectory)
 534             return STATUS_OBJECT_NAME_INVALID;
 535         else
 536             return STATUS_OBJECT_PATH_SYNTAX_BAD;
 537     }
 538
 539     SERVER_START_REQ(open_symlink)
 540     {
 541         req->access = DesiredAccess;
 542         req->attributes = ObjectAttributes->Attributes;
 543         req->rootdir = ObjectAttributes->RootDirectory;
 544         if (ObjectAttributes->ObjectName)
 545             wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
 546                                  ObjectAttributes->ObjectName->Length);
 547         ret = wine_server_call( req );
 548         *LinkHandle = reply->handle;
 549     }
 550     SERVER_END_REQ;
 551     return ret;
 552 }
 553
 554 /******************************************************************************
 555  *  NtCreateSymbolicLinkObject  [NTDLL.@]
 556  *  ZwCreateSymbolicLinkObject  [NTDLL.@]
 557  *
 558  * Open a namespace symbolic link object.
 559  *
 560  * PARAMS
 561  *  SymbolicLinkHandle [O] Destination for the new symbolic link handle
 562  *  DesiredAccess      [I] Desired access to the symbolic link
 563  *  ObjectAttributes   [I] Structure describing the symbolic link
 564  *  TargetName         [I] Name of the target symbolic link points to
 565  *
 566  * RETURNS
 567  *  Success: ERROR_SUCCESS.
 568  *  Failure: An NTSTATUS error code.
 569  */
 570 NTSTATUS WINAPI NtCreateSymbolicLinkObject(OUT PHANDLE SymbolicLinkHandle,IN ACCESS_MASK DesiredAccess,
 571                                            IN POBJECT_ATTRIBUTES ObjectAttributes,
 572                                            IN PUNICODE_STRING TargetName)
 573 {
 574     NTSTATUS ret;
 575     TRACE("(%p,0x%08x,%p, -> %s)\n", SymbolicLinkHandle, DesiredAccess, ObjectAttributes,
 576                                       debugstr_us(TargetName));
 577     dump_ObjectAttributes(ObjectAttributes);
 578
 579     if (!SymbolicLinkHandle || !TargetName) return STATUS_ACCESS_VIOLATION;
 580     if (!TargetName->Buffer) return STATUS_INVALID_PARAMETER;
 581
 582     SERVER_START_REQ(create_symlink)
 583     {
 584         req->access = DesiredAccess;
 585         req->attributes = ObjectAttributes ? ObjectAttributes->Attributes : 0;
 586         req->rootdir = ObjectAttributes ? ObjectAttributes->RootDirectory : 0;
 587         if (ObjectAttributes && ObjectAttributes->ObjectName)
 588         {
 589             req->name_len = ObjectAttributes->ObjectName->Length;
 590             wine_server_add_data(req, ObjectAttributes->ObjectName->Buffer,
 591                                  ObjectAttributes->ObjectName->Length);
 592         }
 593         else
 594             req->name_len = 0;
 595         wine_server_add_data(req, TargetName->Buffer, TargetName->Length);
 596         ret = wine_server_call( req );
 597         *SymbolicLinkHandle = reply->handle;
 598     }
 599     SERVER_END_REQ;
 600     return ret;
 601 }
 602
 603 /******************************************************************************
 604  *  NtQuerySymbolicLinkObject   [NTDLL.@]
 605  *  ZwQuerySymbolicLinkObject   [NTDLL.@]
 606  *
 607  * Query a namespace symbolic link object target name.
 608  *
 609  * PARAMS
 610  *  LinkHandle     [I] Handle to a symbolic link object
 611  *  LinkTarget     [O] Destination for the symbolic link target
 612  *  ReturnedLength [O] Size of returned data
 613  *
 614  * RETURNS
 615  *  Success: ERROR_SUCCESS.
 616  *  Failure: An NTSTATUS error code.
 617  */
 618 NTSTATUS WINAPI NtQuerySymbolicLinkObject(IN HANDLE LinkHandle, IN OUT PUNICODE_STRING LinkTarget,
 619                                           OUT PULONG ReturnedLength OPTIONAL)
 620 {
 621     NTSTATUS ret;
 622     TRACE("(%p,%p,%p)\n", LinkHandle, LinkTarget, ReturnedLength);
 623
 624     if (!LinkTarget) return STATUS_ACCESS_VIOLATION;
 625
 626     SERVER_START_REQ(query_symlink)
 627     {
 628         req->handle = LinkHandle;
 629         wine_server_set_reply( req, LinkTarget->Buffer, LinkTarget->MaximumLength );
 630         if (!(ret = wine_server_call( req )))
 631         {
 632             LinkTarget->Length = wine_server_reply_size(reply);
 633             if (ReturnedLength) *ReturnedLength = LinkTarget->Length;
 634         }
 635     }
 636     SERVER_END_REQ;
 637     return ret;
 638 }
 639
 640 /******************************************************************************
 641  *  NtAllocateUuids   [NTDLL.@]
 642  */
 643 NTSTATUS WINAPI NtAllocateUuids(
 644         PULARGE_INTEGER Time,
 645         PULONG Range,
 646         PULONG Sequence)
 647 {
 648         FIXME("(%p,%p,%p), stub.\n", Time, Range, Sequence);
 649         return 0;
 650 }