base/setup/usetup/registry.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * COPYRIGHT:       See COPYING in the top level directory
  21  * PROJECT:         ReactOS text-mode setup
  22  * FILE:            subsys/system/usetup/registry.c
  23  * PURPOSE:         Registry creation functions
  24  * PROGRAMMER:      Eric Kohl
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include "usetup.h"
  30
  31 #define NDEBUG
  32 #include <debug.h>
  33
  34 #ifdef __REACTOS__
  35 #define FLG_ADDREG_BINVALUETYPE           0x00000001
  36 #define FLG_ADDREG_NOCLOBBER              0x00000002
  37 #define FLG_ADDREG_DELVAL                 0x00000004
  38 #define FLG_ADDREG_APPEND                 0x00000008
  39 #define FLG_ADDREG_KEYONLY                0x00000010
  40 #define FLG_ADDREG_OVERWRITEONLY          0x00000020
  41 #define FLG_ADDREG_TYPE_SZ                0x00000000
  42 #define FLG_ADDREG_TYPE_MULTI_SZ          0x00010000
  43 #define FLG_ADDREG_TYPE_EXPAND_SZ         0x00020000
  44 #define FLG_ADDREG_TYPE_BINARY           (0x00000000 | FLG_ADDREG_BINVALUETYPE)
  45 #define FLG_ADDREG_TYPE_DWORD            (0x00010000 | FLG_ADDREG_BINVALUETYPE)
  46 #define FLG_ADDREG_TYPE_NONE             (0x00020000 | FLG_ADDREG_BINVALUETYPE)
  47 #define FLG_ADDREG_TYPE_MASK             (0xFFFF0000 | FLG_ADDREG_BINVALUETYPE)
  48 #endif
  49
  50 #include <pshpack1.h>
  51
  52 typedef struct _REG_DISK_MOUNT_INFO
  53 {
  54   ULONG Signature;
  55   LARGE_INTEGER StartingOffset;
  56 } REG_DISK_MOUNT_INFO, *PREG_DISK_MOUNT_INFO;
  57
  58 #include <poppack.h>
  59
  60 /* FUNCTIONS ****************************************************************/
  61
  62 static BOOLEAN
  63 GetRootKey (PWCHAR Name)
  64 {
  65   if (!_wcsicmp (Name, L"HKCR"))
  66     {
  67       wcscpy (Name, L"\\Registry\\Machine\\SOFTWARE\\Classes\\");
  68       return TRUE;
  69     }
  70
  71   if (!_wcsicmp (Name, L"HKCU"))
  72     {
  73       wcscpy (Name, L"\\Registry\\User\\.DEFAULT\\");
  74       return TRUE;
  75     }
  76
  77   if (!_wcsicmp (Name, L"HKLM"))
  78     {
  79       wcscpy (Name, L"\\Registry\\Machine\\");
  80       return TRUE;
  81     }
  82
  83   if (!_wcsicmp (Name, L"HKU"))
  84     {
  85       wcscpy (Name, L"\\Registry\\User\\");
  86       return TRUE;
  87     }
  88
  89 #if 0
  90   if (!_wcsicmp (Name, L"HKR"))
  91     return FALSE;
  92 #endif
  93
  94   return FALSE;
  95 }
  96
  97
  98 /***********************************************************************
  99  *            append_multi_sz_value
 100  *
 101  * Append a multisz string to a multisz registry value.
 102  */
 103 #if 0
 104 static void
 105 append_multi_sz_value (HANDLE hkey,
 106                        const WCHAR *value,
 107                        const WCHAR *strings,
 108                        DWORD str_size )
 109 {
 110     DWORD size, type, total;
 111     WCHAR *buffer, *p;
 112
 113     if (RegQueryValueExW( hkey, value, NULL, &type, NULL, &size )) return;
 114     if (type != REG_MULTI_SZ) return;
 115
 116     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, (size + str_size) * sizeof(WCHAR) ))) return;
 117     if (RegQueryValueExW( hkey, value, NULL, NULL, (BYTE *)buffer, &size )) goto done;
 118
 119     /* compare each string against all the existing ones */
 120     total = size;
 121     while (*strings)
 122     {
 123         int len = strlenW(strings) + 1;
 124
 125         for (p = buffer; *p; p += strlenW(p) + 1)
 126             if (!strcmpiW( p, strings )) break;
 127
 128         if (!*p)  /* not found, need to append it */
 129         {
 130             memcpy( p, strings, len * sizeof(WCHAR) );
 131             p[len] = 0;
 132             total += len;
 133         }
 134         strings += len;
 135     }
 136     if (total != size)
 137     {
 138         TRACE( "setting value %s to %s\n", debugstr_w(value), debugstr_w(buffer) );
 139         RegSetValueExW( hkey, value, 0, REG_MULTI_SZ, (BYTE *)buffer, total );
 140     }
 141  done:
 142     HeapFree( GetProcessHeap(), 0, buffer );
 143 }
 144 #endif
 145
 146 /***********************************************************************
 147  *            delete_multi_sz_value
 148  *
 149  * Remove a string from a multisz registry value.
 150  */
 151 #if 0
 152 static void delete_multi_sz_value( HKEY hkey, const WCHAR *value, const WCHAR *string )
 153 {
 154     DWORD size, type;
 155     WCHAR *buffer, *src, *dst;
 156
 157     if (RegQueryValueExW( hkey, value, NULL, &type, NULL, &size )) return;
 158     if (type != REG_MULTI_SZ) return;
 159     /* allocate double the size, one for value before and one for after */
 160     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size * 2 * sizeof(WCHAR) ))) return;
 161     if (RegQueryValueExW( hkey, value, NULL, NULL, (BYTE *)buffer, &size )) goto done;
 162     src = buffer;
 163     dst = buffer + size;
 164     while (*src)
 165     {
 166         int len = strlenW(src) + 1;
 167         if (strcmpiW( src, string ))
 168         {
 169             memcpy( dst, src, len * sizeof(WCHAR) );
 170             dst += len;
 171         }
 172         src += len;
 173     }
 174     *dst++ = 0;
 175     if (dst != buffer + 2*size)  /* did we remove something? */
 176     {
 177         TRACE( "setting value %s to %s\n", debugstr_w(value), debugstr_w(buffer + size) );
 178         RegSetValueExW( hkey, value, 0, REG_MULTI_SZ,
 179                         (BYTE *)(buffer + size), dst - (buffer + size) );
 180     }
 181  done:
 182     HeapFree( GetProcessHeap(), 0, buffer );
 183 }
 184 #endif
 185
 186 /***********************************************************************
 187  *            do_reg_operation
 188  *
 189  * Perform an add/delete registry operation depending on the flags.
 190  */
 191 static BOOLEAN
 192 do_reg_operation(HANDLE KeyHandle,
 193                  PUNICODE_STRING ValueName,
 194                  PINFCONTEXT Context,
 195                  ULONG Flags)
 196 {
 197   WCHAR EmptyStr = (WCHAR)0;
 198   ULONG Type;
 199   ULONG Size;
 200
 201   if (Flags & FLG_ADDREG_DELVAL)  /* deletion */
 202     {
 203 #if 0
 204       if (ValueName)
 205         {
 206           RegDeleteValueW( KeyHandle, ValueName );
 207         }
 208       else
 209         {
 210           RegDeleteKeyW( KeyHandle, NULL );
 211         }
 212 #endif
 213       return TRUE;
 214     }
 215
 216   if (Flags & FLG_ADDREG_KEYONLY)
 217     return TRUE;
 218
 219 #if 0
 220   if (Flags & (FLG_ADDREG_NOCLOBBER | FLG_ADDREG_OVERWRITEONLY))
 221     {
 222       BOOL exists = !RegQueryValueExW( hkey, value, NULL, NULL, NULL, NULL );
 223       if (exists && (flags & FLG_ADDREG_NOCLOBBER))
 224         return TRUE;
 225       if (!exists & (flags & FLG_ADDREG_OVERWRITEONLY))
 226         return TRUE;
 227     }
 228 #endif
 229
 230   switch (Flags & FLG_ADDREG_TYPE_MASK)
 231     {
 232       case FLG_ADDREG_TYPE_SZ:
 233         Type = REG_SZ;
 234         break;
 235
 236       case FLG_ADDREG_TYPE_MULTI_SZ:
 237         Type = REG_MULTI_SZ;
 238         break;
 239
 240       case FLG_ADDREG_TYPE_EXPAND_SZ:
 241         Type = REG_EXPAND_SZ;
 242         break;
 243
 244       case FLG_ADDREG_TYPE_BINARY:
 245         Type = REG_BINARY;
 246         break;
 247
 248       case FLG_ADDREG_TYPE_DWORD:
 249         Type = REG_DWORD;
 250         break;
 251
 252       case FLG_ADDREG_TYPE_NONE:
 253         Type = REG_NONE;
 254         break;
 255
 256       default:
 257         Type = Flags >> 16;
 258         break;
 259     }
 260
 261   if (!(Flags & FLG_ADDREG_BINVALUETYPE) ||
 262       (Type == REG_DWORD && SetupGetFieldCount (Context) == 5))
 263     {
 264       PWCHAR Str = NULL;
 265
 266       if (Type == REG_MULTI_SZ)
 267         {
 268           if (!SetupGetMultiSzFieldW (Context, 5, NULL, 0, &Size))
 269             Size = 0;
 270
 271           if (Size)
 272             {
 273               Str = (WCHAR*) RtlAllocateHeap (ProcessHeap, 0, Size * sizeof(WCHAR));
 274               if (Str == NULL)
 275                 return FALSE;
 276
 277               SetupGetMultiSzFieldW (Context, 5, Str, Size, NULL);
 278             }
 279
 280           if (Flags & FLG_ADDREG_APPEND)
 281             {
 282               if (Str == NULL)
 283                 return TRUE;
 284
 285 //            append_multi_sz_value( hkey, value, str, size );
 286
 287               RtlFreeHeap (ProcessHeap, 0, Str);
 288               return TRUE;
 289             }
 290           /* else fall through to normal string handling */
 291         }
 292       else
 293         {
 294           if (!SetupGetStringFieldW (Context, 5, NULL, 0, &Size))
 295             Size = 0;
 296
 297           if (Size)
 298             {
 299               Str = (WCHAR*) RtlAllocateHeap (ProcessHeap, 0, Size * sizeof(WCHAR));
 300               if (Str == NULL)
 301                 return FALSE;
 302
 303               SetupGetStringFieldW (Context, 5, Str, Size, NULL);
 304             }
 305         }
 306
 307       if (Type == REG_DWORD)
 308         {
 309           ULONG dw = Str ? wcstol (Str, NULL, 0) : 0;
 310
 311           DPRINT("setting dword %wZ to %lx\n", ValueName, dw);
 312
 313 #ifdef __REACTOS__
 314           NtSetValueKey (KeyHandle,
 315                          ValueName,
 316                          0,
 317                          Type,
 318                          (PVOID)&dw,
 319                          sizeof(ULONG));
 320 #else
 321           RegSetValueExW(KeyHandle, ValueName, 0, Type, (const UCHAR*)&dw, sizeof(ULONG));
 322 #endif
 323         }
 324       else
 325         {
 326           DPRINT("setting value %wZ to %S\n", ValueName, Str);
 327
 328           if (Str)
 329             {
 330 #ifdef __REACTOS__
 331               NtSetValueKey (KeyHandle,
 332                              ValueName,
 333                              0,
 334                              Type,
 335                              (PVOID)Str,
 336                              Size * sizeof(WCHAR));
 337 #else
 338               RegSetValueExW(KeyHandle, ValueName, 0, Type, (const UCHAR*)Str, Size * sizeof(WCHAR));
 339 #endif
 340             }
 341           else
 342             {
 343 #ifdef __REACTOS__
 344               NtSetValueKey (KeyHandle,
 345                              ValueName,
 346                              0,
 347                              Type,
 348                              (PVOID)&EmptyStr,
 349                              sizeof(WCHAR));
 350 #else
 351               RegSetValueExW(KeyHandle, ValueName, 0, Type, (const UCHAR*)&EmptyStr, sizeof(WCHAR));
 352 #endif
 353             }
 354         }
 355       RtlFreeHeap (ProcessHeap, 0, Str);
 356     }
 357   else  /* get the binary data */
 358     {
 359       PUCHAR Data = NULL;
 360
 361       if (!SetupGetBinaryField (Context, 5, NULL, 0, &Size))
 362         Size = 0;
 363
 364       if (Size)
 365         {
 366           Data = (unsigned char*) RtlAllocateHeap (ProcessHeap, 0, Size);
 367           if (Data == NULL)
 368             return FALSE;
 369
 370           DPRINT("setting binary data %wZ len %lu\n", ValueName, Size);
 371           SetupGetBinaryField (Context, 5, Data, Size, NULL);
 372         }
 373
 374 #ifdef __REACTOS__
 375       NtSetValueKey (KeyHandle,
 376                      ValueName,
 377                      0,
 378                      Type,
 379                      (PVOID)Data,
 380                      Size);
 381 #else
 382       RegSetValueExW(KeyHandle, ValueName, 0, Type, (const UCHAR*)Data, Size);
 383 #endif
 384
 385       RtlFreeHeap (ProcessHeap, 0, Data);
 386     }
 387
 388   return TRUE;
 389 }
 390
 391 #ifdef __REACTOS__
 392 NTSTATUS
 393 CreateNestedKey (PHANDLE KeyHandle,
 394                  ACCESS_MASK DesiredAccess,
 395                  POBJECT_ATTRIBUTES ObjectAttributes)
 396 {
 397   OBJECT_ATTRIBUTES LocalObjectAttributes;
 398   UNICODE_STRING LocalKeyName;
 399   ULONG Disposition;
 400   NTSTATUS Status;
 401   ULONG FullNameLength;
 402   ULONG Length;
 403   PWCHAR Ptr;
 404   HANDLE LocalKeyHandle;
 405
 406   Status = NtCreateKey (KeyHandle,
 407                         KEY_ALL_ACCESS,
 408                         ObjectAttributes,
 409                         0,
 410                         NULL,
 411                         0,
 412                         &Disposition);
 413   DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", ObjectAttributes->ObjectName, Status);
 414   if (Status != STATUS_OBJECT_NAME_NOT_FOUND)
 415     return Status;
 416
 417   /* Copy object attributes */
 418   RtlCopyMemory (&LocalObjectAttributes,
 419                  ObjectAttributes,
 420                  sizeof(OBJECT_ATTRIBUTES));
 421   RtlCreateUnicodeString (&LocalKeyName,
 422                           ObjectAttributes->ObjectName->Buffer);
 423   LocalObjectAttributes.ObjectName = &LocalKeyName;
 424   FullNameLength = LocalKeyName.Length / sizeof(WCHAR);
 425
 426   /* Remove the last part of the key name and try to create the key again. */
 427   while (Status == STATUS_OBJECT_NAME_NOT_FOUND)
 428     {
 429       Ptr = wcsrchr (LocalKeyName.Buffer, '\\');
 430       if (Ptr == NULL || Ptr == LocalKeyName.Buffer)
 431         {
 432           Status = STATUS_UNSUCCESSFUL;
 433           break;
 434         }
 435       *Ptr = (WCHAR)0;
 436       LocalKeyName.Length = wcslen (LocalKeyName.Buffer) * sizeof(WCHAR);
 437
 438       Status = NtCreateKey (&LocalKeyHandle,
 439                             KEY_ALL_ACCESS,
 440                             &LocalObjectAttributes,
 441                             0,
 442                             NULL,
 443                             0,
 444                             &Disposition);
 445       DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", &LocalKeyName, Status);
 446     }
 447
 448   if (!NT_SUCCESS(Status))
 449     {
 450       RtlFreeUnicodeString (&LocalKeyName);
 451       return Status;
 452     }
 453
 454   /* Add removed parts of the key name and create them too. */
 455   Length = wcslen (LocalKeyName.Buffer);
 456   while (TRUE)
 457     {
 458       if (Length == FullNameLength)
 459         {
 460           Status = STATUS_SUCCESS;
 461           *KeyHandle = LocalKeyHandle;
 462           break;
 463         }
 464       NtClose (LocalKeyHandle);
 465
 466       LocalKeyName.Buffer[Length] = L'\\';
 467       Length = wcslen (LocalKeyName.Buffer);
 468       LocalKeyName.Length = Length * sizeof(WCHAR);
 469
 470       Status = NtCreateKey (&LocalKeyHandle,
 471                             KEY_ALL_ACCESS,
 472                             &LocalObjectAttributes,
 473                             0,
 474                             NULL,
 475                             0,
 476                             &Disposition);
 477       DPRINT("NtCreateKey(%wZ) called (Status %lx)\n", &LocalKeyName, Status);
 478       if (!NT_SUCCESS(Status))
 479         break;
 480     }
 481
 482   RtlFreeUnicodeString (&LocalKeyName);
 483
 484   return Status;
 485 }
 486 #endif
 487
 488 /***********************************************************************
 489  *            registry_callback
 490  *
 491  * Called once for each AddReg and DelReg entry in a given section.
 492  */
 493 static BOOLEAN
 494 registry_callback (HINF hInf, PCWSTR Section, BOOLEAN Delete)
 495 {
 496   OBJECT_ATTRIBUTES ObjectAttributes;
 497   WCHAR Buffer[MAX_INF_STRING_LENGTH];
 498   UNICODE_STRING Name;
 499   UNICODE_STRING Value;
 500   PUNICODE_STRING ValuePtr;
 501   NTSTATUS Status;
 502   UINT Flags;
 503   ULONG Length;
 504
 505   INFCONTEXT Context;
 506   HANDLE KeyHandle;
 507   BOOLEAN Ok;
 508
 509
 510   Ok = SetupFindFirstLineW (hInf, Section, NULL, &Context);
 511
 512   if (Ok)
 513     {
 514       for (;Ok; Ok = SetupFindNextLine (&Context, &Context))
 515         {
 516           /* get root */
 517           if (!SetupGetStringFieldW (&Context, 1, Buffer, MAX_INF_STRING_LENGTH, NULL))
 518               continue;
 519           if (!GetRootKey (Buffer))
 520             continue;
 521
 522           /* get key */
 523           Length = wcslen (Buffer);
 524           if (!SetupGetStringFieldW (&Context, 2, Buffer + Length, MAX_INF_STRING_LENGTH - Length, NULL))
 525             *Buffer = 0;
 526
 527           DPRINT("KeyName: <%S>\n", Buffer);
 528
 529           /* get flags */
 530           if (!SetupGetIntField (&Context, 4, (PINT)&Flags))
 531             Flags = 0;
 532
 533           DPRINT("Flags: %lx\n", Flags);
 534
 535 #ifdef __REACTOS__
 536           RtlInitUnicodeString (&Name,
 537                                 Buffer);
 538
 539           InitializeObjectAttributes (&ObjectAttributes,
 540                                       &Name,
 541                                       OBJ_CASE_INSENSITIVE,
 542                                       NULL,
 543                                       NULL);
 544
 545           if (Delete || (Flags & FLG_ADDREG_OVERWRITEONLY))
 546             {
 547               Status = NtOpenKey (&KeyHandle,
 548                                   KEY_ALL_ACCESS,
 549                                   &ObjectAttributes);
 550               if (!NT_SUCCESS(Status))
 551                 {
 552                   DPRINT("NtOpenKey(%wZ) failed (Status %lx)\n", &Name, Status);
 553                   continue;  /* ignore if it doesn't exist */
 554                 }
 555             }
 556           else
 557             {
 558               Status = CreateNestedKey (&KeyHandle,
 559                                         KEY_ALL_ACCESS,
 560                                         &ObjectAttributes);
 561               if (!NT_SUCCESS(Status))
 562                 {
 563                   DPRINT("CreateNestedKey(%wZ) failed (Status %lx)\n", &Name, Status);
 564                   continue;
 565                 }
 566             }
 567 #else
 568           if (Delete || (Flags & FLG_ADDREG_OVERWRITEONLY))
 569              {
 570                 LONG rc = RegOpenKeyW(NULL, Buffer, &KeyHandle);
 571                 if (rc != ERROR_SUCCESS)
 572                   {
 573                     DPRINT("RegOpenKeyW(%S) failed (error %lu)\n", Buffer, rc);
 574                     continue; /* ignore if it doesn't exist */
 575                   }
 576               }
 577               else
 578               {
 579                   LONG rc = RegCreateKeyW(NULL, Buffer, &KeyHandle);
 580                   if (rc != ERROR_SUCCESS)
 581                   {
 582                     DPRINT("RegCreateKeyW(%S) failed (error %lu)\n", Buffer, rc);
 583                     continue;
 584                   }
 585               }
 586 #endif
 587
 588           /* get value name */
 589           if (SetupGetStringFieldW (&Context, 3, Buffer, MAX_INF_STRING_LENGTH, NULL))
 590             {
 591               RtlInitUnicodeString (&Value,
 592                                     Buffer);
 593               ValuePtr = &Value;
 594             }
 595           else
 596             {
 597               ValuePtr = NULL;
 598             }
 599
 600           /* and now do it */
 601           if (!do_reg_operation (KeyHandle, ValuePtr, &Context, Flags))
 602             {
 603               NtClose (KeyHandle);
 604               return FALSE;
 605             }
 606
 607 #ifdef __REACTOS__
 608           NtClose (KeyHandle);
 609 #endif
 610         }
 611     }
 612
 613   return TRUE;
 614 }
 615
 616
 617 BOOLEAN
 618 ImportRegistryFile(PWSTR Filename,
 619                    PWSTR Section,
 620                    BOOLEAN Delete)
 621 {
 622   WCHAR FileNameBuffer[MAX_PATH];
 623   HINF hInf;
 624   UINT ErrorLine;
 625
 626   /* Load inf file from install media. */
 627   wcscpy(FileNameBuffer, SourcePath.Buffer);
 628   wcscat(FileNameBuffer, L"\\");
 629   wcscat(FileNameBuffer, Filename);
 630
 631   hInf = SetupOpenInfFileW(
 632                        FileNameBuffer,
 633                        NULL,
 634                        INF_STYLE_WIN4,
 635                        &ErrorLine);
 636   if (hInf == INVALID_HANDLE_VALUE)
 637     {
 638       DPRINT1("SetupOpenInfFile() failed\n");
 639       return FALSE;
 640     }
 641
 642   if (!registry_callback (hInf, L"AddReg", FALSE))
 643     {
 644       DPRINT1("registry_callback() failed\n");
 645     }
 646
 647   SetupCloseInfFile (hInf);
 648
 649   return TRUE;
 650 }
 651
 652
 653 BOOLEAN
 654 SetInstallPathValue(PUNICODE_STRING InstallPath)
 655 {
 656   OBJECT_ATTRIBUTES ObjectAttributes;
 657   UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\HARDWARE");
 658   UNICODE_STRING ValueName = RTL_CONSTANT_STRING(L"InstallPath");
 659   HANDLE KeyHandle;
 660   NTSTATUS Status;
 661
 662   /* Create the 'secret' InstallPath key */
 663   InitializeObjectAttributes (&ObjectAttributes,
 664                               &KeyName,
 665                               OBJ_CASE_INSENSITIVE,
 666                               NULL,
 667                               NULL);
 668   Status =  NtOpenKey (&KeyHandle,
 669                        KEY_ALL_ACCESS,
 670                        &ObjectAttributes);
 671   if (!NT_SUCCESS(Status))
 672     {
 673       DPRINT1("NtOpenKey() failed (Status %lx)\n", Status);
 674       return FALSE;
 675     }
 676
 677   Status = NtSetValueKey (KeyHandle,
 678                           &ValueName,
 679                           0,
 680                           REG_SZ,
 681                           (PVOID)InstallPath->Buffer,
 682                           InstallPath->Length);
 683   NtClose(KeyHandle);
 684   if (!NT_SUCCESS(Status))
 685     {
 686       DPRINT1("NtSetValueKey() failed (Status %lx)\n", Status);
 687       return FALSE;
 688     }
 689
 690   return TRUE;
 691 }
 692
 693 BOOLEAN
 694 SetMountedDeviceValue(CHAR Letter, ULONG Signature, LARGE_INTEGER StartingOffset)
 695 {
 696   OBJECT_ATTRIBUTES ObjectAttributes;
 697   WCHAR ValueNameBuffer[16];
 698   UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\SYSTEM\\MountedDevices");
 699   UNICODE_STRING ValueName;
 700   REG_DISK_MOUNT_INFO MountInfo;
 701   NTSTATUS Status;
 702   HANDLE KeyHandle;
 703
 704   swprintf(ValueNameBuffer, L"\\DosDevices\\%C:", Letter);
 705   RtlInitUnicodeString(&ValueName, ValueNameBuffer);
 706
 707   InitializeObjectAttributes (&ObjectAttributes,
 708                               &KeyName,
 709                               OBJ_CASE_INSENSITIVE,
 710                               NULL,
 711                               NULL);
 712   Status =  NtOpenKey (&KeyHandle,
 713                        KEY_ALL_ACCESS,
 714                        &ObjectAttributes);
 715   if (!NT_SUCCESS(Status))
 716     {
 717       Status = NtCreateKey(&KeyHandle,
 718                            KEY_ALL_ACCESS,
 719                            &ObjectAttributes,
 720                            0,
 721                            NULL,
 722                            REG_OPTION_NON_VOLATILE,
 723                            NULL);
 724     }
 725
 726   if (!NT_SUCCESS(Status))
 727     {
 728       DPRINT1("NtCreateKey() failed (Status %lx)\n", Status);
 729       return FALSE;
 730     }
 731
 732   MountInfo.Signature = Signature;
 733   MountInfo.StartingOffset = StartingOffset;
 734   Status = NtSetValueKey (KeyHandle,
 735                           &ValueName,
 736                           0,
 737                           REG_BINARY,
 738                           (PVOID)&MountInfo,
 739                           sizeof(MountInfo));
 740   NtClose(KeyHandle);
 741   if (!NT_SUCCESS(Status))
 742     {
 743       DPRINT1("NtSetValueKey() failed (Status %lx)\n", Status);
 744       return FALSE;
 745     }
 746
 747   return TRUE;
 748 }
 749
 750 /* EOF */