reactos/ntoskrnl/config/cmsysini.c

   1 /*
   2  * PROJECT:         ReactOS Kernel
   3  * LICENSE:         BSD - See COPYING.ARM in the top level directory
   4  * FILE:            ntoskrnl/config/cmsysini.c
   5  * PURPOSE:         Configuration Manager - System Initialization Code
   6  * PROGRAMMERS:     ReactOS Portable Systems Group
   7  *                  Alex Ionescu (alex.ionescu@reactos.org)
   8  */
   9
  10 /* INCLUDES *******************************************************************/
  11
  12 #include "ntoskrnl.h"
  13 #define NDEBUG
  14 #include "debug.h"
  15
  16 POBJECT_TYPE CmpKeyObjectType;
  17 PCMHIVE CmiVolatileHive;
  18 LIST_ENTRY CmpHiveListHead;
  19 ERESOURCE CmpRegistryLock;
  20 KGUARDED_MUTEX CmpSelfHealQueueLock;
  21 LIST_ENTRY CmpSelfHealQueueListHead;
  22 KEVENT CmpLoadWorkerEvent;
  23 LONG CmpLoadWorkerIncrement;
  24 PEPROCESS CmpSystemProcess;
  25 BOOLEAN HvShutdownComplete;
  26 PVOID CmpRegistryLockCallerCaller, CmpRegistryLockCaller;
  27 BOOLEAN CmpFlushOnLockRelease;
  28 BOOLEAN CmpSpecialBootCondition;
  29 BOOLEAN CmpNoWrite;
  30 BOOLEAN CmpWasSetupBoot;
  31 BOOLEAN CmpProfileLoaded;
  32 BOOLEAN CmpNoVolatileCreates;
  33 ULONG CmpTraceLevel = 0;
  34
  35 extern LONG CmpFlushStarveWriters;
  36 extern BOOLEAN CmFirstTime;
  37
  38 /* FUNCTIONS ******************************************************************/
  39
  40 BOOLEAN
  41 NTAPI
  42 CmpLinkKeyToHive(
  43     _In_z_ PWSTR LinkKeyName,
  44     _In_z_ PWSTR TargetKeyName)
  45 {
  46     OBJECT_ATTRIBUTES ObjectAttributes;
  47     UNICODE_STRING LinkKeyName_U;
  48     HANDLE TargetKeyHandle;
  49     ULONG Disposition;
  50     NTSTATUS Status;
  51     PAGED_CODE();
  52
  53     /* Initialize the object attributes */
  54     RtlInitUnicodeString(&LinkKeyName_U, LinkKeyName);
  55     InitializeObjectAttributes(&ObjectAttributes,
  56                                &LinkKeyName_U,
  57                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
  58                                NULL,
  59                                NULL);
  60
  61     /* Create the link key */
  62     Status = ZwCreateKey(&TargetKeyHandle,
  63                          KEY_CREATE_LINK,
  64                          &ObjectAttributes,
  65                          0,
  66                          NULL,
  67                          REG_OPTION_VOLATILE | REG_OPTION_CREATE_LINK,
  68                          &Disposition);
  69     if (!NT_SUCCESS(Status))
  70     {
  71         DPRINT1("CM: CmpLinkKeyToHive: couldn't create %S Status = 0x%lx\n",
  72                 LinkKeyName, Status);
  73         return FALSE;
  74     }
  75
  76     /* Check if the new key was actually created */
  77     if (Disposition != REG_CREATED_NEW_KEY)
  78     {
  79         DPRINT1("CM: CmpLinkKeyToHive: %S already exists!\n", LinkKeyName);
  80         ZwClose(TargetKeyHandle);
  81         return FALSE;
  82     }
  83
  84     /* Set the target key name as link target */
  85     Status = ZwSetValueKey(TargetKeyHandle,
  86                            &CmSymbolicLinkValueName,
  87                            0,
  88                            REG_LINK,
  89                            TargetKeyName,
  90                            (ULONG)wcslen(TargetKeyName) * sizeof(WCHAR));
  91
  92     /* Close the link key handle */
  93     ObCloseHandle(TargetKeyHandle, KernelMode);
  94
  95     if (!NT_SUCCESS(Status))
  96     {
  97         DPRINT1("CM: CmpLinkKeyToHive: couldn't create symbolic link for %S\n",
  98                 TargetKeyName);
  99         return FALSE;
 100     }
 101
 102     return TRUE;
 103 }
 104
 105 VOID
 106 NTAPI
 107 CmpDeleteKeyObject(PVOID DeletedObject)
 108 {
 109     PCM_KEY_BODY KeyBody = (PCM_KEY_BODY)DeletedObject;
 110     PCM_KEY_CONTROL_BLOCK Kcb;
 111     REG_KEY_HANDLE_CLOSE_INFORMATION KeyHandleCloseInfo;
 112     REG_POST_OPERATION_INFORMATION PostOperationInfo;
 113     NTSTATUS Status;
 114     PAGED_CODE();
 115
 116     /* First off, prepare the handle close information callback */
 117     PostOperationInfo.Object = KeyBody;
 118     KeyHandleCloseInfo.Object = KeyBody;
 119     Status = CmiCallRegisteredCallbacks(RegNtPreKeyHandleClose,
 120                                         &KeyHandleCloseInfo);
 121     if (!NT_SUCCESS(Status))
 122     {
 123         /* If we failed, notify the post routine */
 124         PostOperationInfo.Status = Status;
 125         CmiCallRegisteredCallbacks(RegNtPostKeyHandleClose, &PostOperationInfo);
 126         return;
 127     }
 128
 129     /* Acquire hive lock */
 130     CmpLockRegistry();
 131
 132     /* Make sure this is a valid key body */
 133     if (KeyBody->Type == CM_KEY_BODY_TYPE)
 134     {
 135         /* Get the KCB */
 136         Kcb = KeyBody->KeyControlBlock;
 137         if (Kcb)
 138         {
 139             /* Delist the key */
 140             DelistKeyBodyFromKCB(KeyBody, FALSE);
 141
 142             /* Dereference the KCB */
 143             CmpDelayDerefKeyControlBlock(Kcb);
 144         }
 145     }
 146
 147     /* Release the registry lock */
 148     CmpUnlockRegistry();
 149
 150     /* Do the post callback */
 151     PostOperationInfo.Status = STATUS_SUCCESS;
 152     CmiCallRegisteredCallbacks(RegNtPostKeyHandleClose, &PostOperationInfo);
 153 }
 154
 155 VOID
 156 NTAPI
 157 CmpCloseKeyObject(IN PEPROCESS Process OPTIONAL,
 158                   IN PVOID Object,
 159                   IN ACCESS_MASK GrantedAccess,
 160                   IN ULONG ProcessHandleCount,
 161                   IN ULONG SystemHandleCount)
 162 {
 163     PCM_KEY_BODY KeyBody = (PCM_KEY_BODY)Object;
 164     PAGED_CODE();
 165
 166     /* Don't do anything if we're not the last handle */
 167     if (SystemHandleCount > 1) return;
 168
 169     /* Make sure we're a valid key body */
 170     if (KeyBody->Type == CM_KEY_BODY_TYPE)
 171     {
 172         /* Don't do anything if we don't have a notify block */
 173         if (!KeyBody->NotifyBlock) return;
 174
 175         /* This shouldn't happen yet */
 176         ASSERT(FALSE);
 177     }
 178 }
 179
 180 NTSTATUS
 181 NTAPI
 182 CmpQueryKeyName(IN PVOID ObjectBody,
 183                 IN BOOLEAN HasName,
 184                 IN OUT POBJECT_NAME_INFORMATION ObjectNameInfo,
 185                 IN ULONG Length,
 186                 OUT PULONG ReturnLength,
 187                 IN KPROCESSOR_MODE PreviousMode)
 188 {
 189     PUNICODE_STRING KeyName;
 190     ULONG BytesToCopy;
 191     NTSTATUS Status = STATUS_SUCCESS;
 192     PCM_KEY_BODY KeyBody = (PCM_KEY_BODY)ObjectBody;
 193     PCM_KEY_CONTROL_BLOCK Kcb = KeyBody->KeyControlBlock;
 194
 195     /* Acquire hive lock */
 196     CmpLockRegistry();
 197
 198     /* Lock KCB shared */
 199     CmpAcquireKcbLockShared(Kcb);
 200
 201     /* Check if it's a deleted block */
 202     if (Kcb->Delete)
 203     {
 204         /* Release the locks */
 205         CmpReleaseKcbLock(Kcb);
 206         CmpUnlockRegistry();
 207
 208         /* Let the caller know it's deleted */
 209         return STATUS_KEY_DELETED;
 210     }
 211
 212     /* Get the name */
 213     KeyName = CmpConstructName(Kcb);
 214
 215     /* Release the locks */
 216     CmpReleaseKcbLock(Kcb);
 217     CmpUnlockRegistry();
 218
 219     /* Check if we got the name */
 220     if (!KeyName) return STATUS_INSUFFICIENT_RESOURCES;
 221
 222     /* Set the returned length */
 223     *ReturnLength = KeyName->Length + sizeof(OBJECT_NAME_INFORMATION) + sizeof(WCHAR);
 224
 225     /* Calculate amount of bytes to copy into the buffer */
 226     BytesToCopy = KeyName->Length + sizeof(WCHAR);
 227
 228     /* Check if the provided buffer is too small to fit even anything */
 229     if ((Length <= sizeof(OBJECT_NAME_INFORMATION)) ||
 230         ((Length < (*ReturnLength)) && (BytesToCopy < sizeof(WCHAR))))
 231     {
 232         /* Free the buffer allocated by CmpConstructName */
 233         ExFreePoolWithTag(KeyName, TAG_CM);
 234
 235         /* Return buffer length failure without writing anything there because nothing fits */
 236         return STATUS_INFO_LENGTH_MISMATCH;
 237     }
 238
 239     /* Check if the provided buffer can be partially written */
 240     if (Length < (*ReturnLength))
 241     {
 242         /* Yes, indicate so in the return status */
 243         Status = STATUS_INFO_LENGTH_MISMATCH;
 244
 245         /* Calculate amount of bytes which the provided buffer could handle */
 246         BytesToCopy = Length - sizeof(OBJECT_NAME_INFORMATION);
 247     }
 248
 249     /* Remove the null termination character from the size */
 250     BytesToCopy -= sizeof(WCHAR);
 251
 252     /* Fill in the result */
 253     _SEH2_TRY
 254     {
 255         /* Return data to user */
 256         ObjectNameInfo->Name.Buffer = (PWCHAR)(ObjectNameInfo + 1);
 257         ObjectNameInfo->Name.MaximumLength = KeyName->Length;
 258         ObjectNameInfo->Name.Length = KeyName->Length;
 259
 260         /* Copy string content*/
 261         RtlCopyMemory(ObjectNameInfo->Name.Buffer,
 262                       KeyName->Buffer,
 263                       BytesToCopy);
 264
 265         /* Null terminate it */
 266         ObjectNameInfo->Name.Buffer[BytesToCopy / sizeof(WCHAR)] = 0;
 267     }
 268     _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
 269     {
 270         /* Get the status */
 271         Status = _SEH2_GetExceptionCode();
 272     }
 273     _SEH2_END;
 274
 275     /* Free the buffer allocated by CmpConstructName */
 276     ExFreePoolWithTag(KeyName, TAG_CM);
 277
 278     /* Return status */
 279     return Status;
 280 }
 281
 282 NTSTATUS
 283 NTAPI
 284 CmpInitHiveFromFile(IN PCUNICODE_STRING HiveName,
 285                     IN ULONG HiveFlags,
 286                     OUT PCMHIVE *Hive,
 287                     IN OUT PBOOLEAN New,
 288                     IN ULONG CheckFlags)
 289 {
 290     ULONG HiveDisposition, LogDisposition;
 291     HANDLE FileHandle = NULL, LogHandle = NULL;
 292     NTSTATUS Status;
 293     ULONG Operation, FileType;
 294     PCMHIVE NewHive;
 295     PAGED_CODE();
 296
 297     /* Assume failure */
 298     *Hive = NULL;
 299
 300     /* Open or create the hive files */
 301     Status = CmpOpenHiveFiles(HiveName,
 302                               L".LOG",
 303                               &FileHandle,
 304                               &LogHandle,
 305                               &HiveDisposition,
 306                               &LogDisposition,
 307                               *New,
 308                               FALSE,
 309                               TRUE,
 310                               NULL);
 311     if (!NT_SUCCESS(Status)) return Status;
 312
 313     /* Check if we have a log handle */
 314     FileType = (LogHandle) ? HFILE_TYPE_LOG : HFILE_TYPE_PRIMARY;
 315
 316     /* Check if we created or opened the hive */
 317     if (HiveDisposition == FILE_CREATED)
 318     {
 319         /* Do a create operation */
 320         Operation = HINIT_CREATE;
 321         *New = TRUE;
 322     }
 323     else
 324     {
 325         /* Open it as a file */
 326         Operation = HINIT_FILE;
 327         *New = FALSE;
 328     }
 329
 330     /* Check if we're sharing hives */
 331     if (CmpShareSystemHives)
 332     {
 333         /* Then force using the primary hive */
 334         FileType = HFILE_TYPE_PRIMARY;
 335         if (LogHandle)
 336         {
 337             /* Get rid of the log handle */
 338             ZwClose(LogHandle);
 339             LogHandle = NULL;
 340         }
 341     }
 342
 343     /* Check if we're too late */
 344     if (HvShutdownComplete)
 345     {
 346         /* Fail */
 347         ZwClose(FileHandle);
 348         if (LogHandle) ZwClose(LogHandle);
 349         return STATUS_TOO_LATE;
 350     }
 351
 352     /* Initialize the hive */
 353     Status = CmpInitializeHive(&NewHive,
 354                                Operation,
 355                                HiveFlags,
 356                                FileType,
 357                                NULL,
 358                                FileHandle,
 359                                LogHandle,
 360                                NULL,
 361                                HiveName,
 362                                CheckFlags);
 363     if (!NT_SUCCESS(Status))
 364     {
 365         /* Fail */
 366         ZwClose(FileHandle);
 367         if (LogHandle) ZwClose(LogHandle);
 368         return Status;
 369     }
 370
 371     /* Success, return hive */
 372     *Hive = NewHive;
 373
 374     /* Duplicate the hive name */
 375     NewHive->FileFullPath.Buffer = ExAllocatePoolWithTag(PagedPool,
 376                                                          HiveName->Length,
 377                                                          TAG_CM);
 378     if (NewHive->FileFullPath.Buffer)
 379     {
 380         /* Copy the string */
 381         RtlCopyMemory(NewHive->FileFullPath.Buffer,
 382                       HiveName->Buffer,
 383                       HiveName->Length);
 384         NewHive->FileFullPath.Length = HiveName->Length;
 385         NewHive->FileFullPath.MaximumLength = HiveName->MaximumLength;
 386     }
 387
 388     /* Return success */
 389     return STATUS_SUCCESS;
 390 }
 391
 392 NTSTATUS
 393 NTAPI
 394 INIT_FUNCTION
 395 CmpSetSystemValues(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
 396 {
 397     OBJECT_ATTRIBUTES ObjectAttributes;
 398     UNICODE_STRING KeyName, ValueName = { 0, 0, NULL };
 399     HANDLE KeyHandle = NULL;
 400     NTSTATUS Status;
 401     ASSERT(LoaderBlock != NULL);
 402
 403     /* Setup attributes for loader options */
 404     RtlInitUnicodeString(&KeyName,
 405                          L"\\REGISTRY\\MACHINE\\SYSTEM\\CurrentControlSet\\"
 406                          L"Control");
 407     InitializeObjectAttributes(&ObjectAttributes,
 408                                &KeyName,
 409                                OBJ_CASE_INSENSITIVE,
 410                                NULL,
 411                                NULL);
 412     Status = NtOpenKey(&KeyHandle, KEY_WRITE, &ObjectAttributes);
 413     if (!NT_SUCCESS(Status)) goto Quickie;
 414
 415     /* Key opened, now write to the key */
 416     RtlInitUnicodeString(&KeyName, L"SystemStartOptions");
 417     Status = NtSetValueKey(KeyHandle,
 418                            &KeyName,
 419                            0,
 420                            REG_SZ,
 421                            CmpLoadOptions.Buffer,
 422                            CmpLoadOptions.Length);
 423     if (!NT_SUCCESS(Status)) goto Quickie;
 424
 425     /* Setup value name for system boot device in ARC format */
 426     RtlInitUnicodeString(&KeyName, L"SystemBootDevice");
 427     RtlCreateUnicodeStringFromAsciiz(&ValueName, LoaderBlock->ArcBootDeviceName);
 428     Status = NtSetValueKey(KeyHandle,
 429                            &KeyName,
 430                            0,
 431                            REG_SZ,
 432                            ValueName.Buffer,
 433                            ValueName.Length);
 434
 435 Quickie:
 436     /* Free the buffers */
 437     RtlFreeUnicodeString(&ValueName);
 438
 439     /* Close the key and return */
 440     if (KeyHandle) NtClose(KeyHandle);
 441
 442     /* Return the status */
 443     return (ExpInTextModeSetup ? STATUS_SUCCESS : Status);
 444 }
 445
 446 static
 447 NTSTATUS
 448 INIT_FUNCTION
 449 CmpCreateHardwareProfile(HANDLE ControlSetHandle)
 450 {
 451     OBJECT_ATTRIBUTES ObjectAttributes;
 452     UNICODE_STRING KeyName;
 453     HANDLE ProfilesHandle = NULL;
 454     HANDLE ProfileHandle = NULL;
 455     ULONG Disposition;
 456     NTSTATUS Status;
 457
 458     DPRINT("CmpCreateHardwareProfile()\n");
 459
 460     /* Create the Hardware Profiles key */
 461     RtlInitUnicodeString(&KeyName, L"Hardware Profiles");
 462     InitializeObjectAttributes(&ObjectAttributes,
 463                                &KeyName,
 464                                OBJ_CASE_INSENSITIVE,
 465                                ControlSetHandle,
 466                                NULL);
 467     Status = NtCreateKey(&ProfilesHandle,
 468                          KEY_ALL_ACCESS,
 469                          &ObjectAttributes,
 470                          0,
 471                          NULL,
 472                          0,
 473                          &Disposition);
 474     if (!NT_SUCCESS(Status))
 475     {
 476         DPRINT1("Creating the Hardware Profile key failed\n");
 477         goto done;
 478     }
 479
 480     /* Sanity check */
 481     ASSERT(Disposition == REG_CREATED_NEW_KEY);
 482
 483     /* Create the 0000 key */
 484     RtlInitUnicodeString(&KeyName, L"0000");
 485     InitializeObjectAttributes(&ObjectAttributes,
 486                                &KeyName,
 487                                OBJ_CASE_INSENSITIVE,
 488                                ProfilesHandle,
 489                                NULL);
 490     Status = NtCreateKey(&ProfileHandle,
 491                          KEY_ALL_ACCESS,
 492                          &ObjectAttributes,
 493                          0,
 494                          NULL,
 495                          0,
 496                          &Disposition);
 497     if (!NT_SUCCESS(Status))
 498     {
 499         DPRINT1("Creating the Hardware Profile\\0000 key failed\n");
 500         goto done;
 501     }
 502
 503     /* Sanity check */
 504     ASSERT(Disposition == REG_CREATED_NEW_KEY);
 505
 506 done:
 507     if (ProfilesHandle)
 508         NtClose(ProfilesHandle);
 509
 510     if (ProfileHandle)
 511         NtClose(ProfileHandle);
 512
 513     DPRINT("CmpCreateHardwareProfile() done\n");
 514
 515     return Status;
 516 }
 517
 518 NTSTATUS
 519 NTAPI
 520 INIT_FUNCTION
 521 CmpCreateControlSet(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
 522 {
 523     UNICODE_STRING ConfigName = RTL_CONSTANT_STRING(L"Control\\IDConfigDB");
 524     UNICODE_STRING SelectName =
 525         RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\Select");
 526     UNICODE_STRING KeyName;
 527     OBJECT_ATTRIBUTES ObjectAttributes;
 528     CHAR ValueInfoBuffer[128];
 529     PKEY_VALUE_FULL_INFORMATION ValueInfo;
 530     CHAR Buffer[128];
 531     WCHAR UnicodeBuffer[128];
 532     HANDLE SelectHandle, KeyHandle, ConfigHandle = NULL, ProfileHandle = NULL;
 533     HANDLE ParentHandle = NULL;
 534     ULONG ControlSet, HwProfile;
 535     ANSI_STRING TempString;
 536     NTSTATUS Status;
 537     ULONG ResultLength, Disposition;
 538     PLOADER_PARAMETER_EXTENSION LoaderExtension;
 539     PAGED_CODE();
 540
 541     /* Open the select key */
 542     InitializeObjectAttributes(&ObjectAttributes,
 543                                &SelectName,
 544                                OBJ_CASE_INSENSITIVE,
 545                                NULL,
 546                                NULL);
 547     Status = NtOpenKey(&SelectHandle, KEY_READ, &ObjectAttributes);
 548     if (!NT_SUCCESS(Status))
 549     {
 550         /* ReactOS Hack: Hard-code current to 001 for SetupLdr */
 551         if (!LoaderBlock->RegistryBase)
 552         {
 553             /* Build the ControlSet001 key */
 554             RtlInitUnicodeString(&KeyName,
 555                                  L"\\Registry\\Machine\\System\\ControlSet001");
 556             InitializeObjectAttributes(&ObjectAttributes,
 557                                        &KeyName,
 558                                        OBJ_CASE_INSENSITIVE,
 559                                        NULL,
 560                                        NULL);
 561             Status = NtCreateKey(&KeyHandle,
 562                                  KEY_ALL_ACCESS,
 563                                  &ObjectAttributes,
 564                                  0,
 565                                  NULL,
 566                                  0,
 567                                  &Disposition);
 568             if (!NT_SUCCESS(Status)) return Status;
 569
 570             /* Create the Hardware Profile keys */
 571             Status = CmpCreateHardwareProfile(KeyHandle);
 572             if (!NT_SUCCESS(Status))
 573                 return Status;
 574
 575             /* Don't need the handle */
 576             ZwClose(KeyHandle);
 577
 578             /* Use hard-coded setting */
 579             ControlSet = 1;
 580             goto UseSet;
 581         }
 582
 583         /* Fail for real boots */
 584         return Status;
 585     }
 586
 587     /* Open the current value */
 588     RtlInitUnicodeString(&KeyName, L"Current");
 589     Status = NtQueryValueKey(SelectHandle,
 590                              &KeyName,
 591                              KeyValueFullInformation,
 592                              ValueInfoBuffer,
 593                              sizeof(ValueInfoBuffer),
 594                              &ResultLength);
 595     NtClose(SelectHandle);
 596     if (!NT_SUCCESS(Status)) return Status;
 597
 598     /* Get the actual value pointer, and get the control set ID */
 599     ValueInfo = (PKEY_VALUE_FULL_INFORMATION)ValueInfoBuffer;
 600     ControlSet = *(PULONG)((PUCHAR)ValueInfo + ValueInfo->DataOffset);
 601
 602     /* Create the current control set key */
 603 UseSet:
 604     RtlInitUnicodeString(&KeyName,
 605                          L"\\Registry\\Machine\\System\\CurrentControlSet");
 606     InitializeObjectAttributes(&ObjectAttributes,
 607                                &KeyName,
 608                                OBJ_CASE_INSENSITIVE,
 609                                NULL,
 610                                NULL);
 611     Status = NtCreateKey(&KeyHandle,
 612                          KEY_CREATE_LINK,
 613                          &ObjectAttributes,
 614                          0,
 615                          NULL,
 616                          REG_OPTION_VOLATILE | REG_OPTION_CREATE_LINK,
 617                          &Disposition);
 618     if (!NT_SUCCESS(Status)) return Status;
 619
 620     /* Sanity check */
 621     ASSERT(Disposition == REG_CREATED_NEW_KEY);
 622
 623     /* Initialize the symbolic link name */
 624     sprintf(Buffer,
 625             "\\Registry\\Machine\\System\\ControlSet%03ld",
 626             ControlSet);
 627     RtlInitAnsiString(&TempString, Buffer);
 628
 629     /* Create a Unicode string out of it */
 630     KeyName.MaximumLength = sizeof(UnicodeBuffer);
 631     KeyName.Buffer = UnicodeBuffer;
 632     Status = RtlAnsiStringToUnicodeString(&KeyName, &TempString, FALSE);
 633
 634     /* Set the value */
 635     Status = NtSetValueKey(KeyHandle,
 636                            &CmSymbolicLinkValueName,
 637                            0,
 638                            REG_LINK,
 639                            KeyName.Buffer,
 640                            KeyName.Length);
 641     if (!NT_SUCCESS(Status)) return Status;
 642
 643     /* Get the configuration database key */
 644     InitializeObjectAttributes(&ObjectAttributes,
 645                                &ConfigName,
 646                                OBJ_CASE_INSENSITIVE,
 647                                KeyHandle,
 648                                NULL);
 649     Status = NtOpenKey(&ConfigHandle, KEY_READ, &ObjectAttributes);
 650     NtClose(KeyHandle);
 651
 652     /* Check if we don't have one */
 653     if (!NT_SUCCESS(Status))
 654     {
 655         /* Cleanup and exit */
 656         ConfigHandle = 0;
 657         goto Cleanup;
 658     }
 659
 660     /* ReactOS Hack: Hard-code current to 001 for SetupLdr */
 661     if (!LoaderBlock->RegistryBase)
 662     {
 663         HwProfile = 0;
 664     }
 665     else
 666     {
 667         /* Now get the current config */
 668         RtlInitUnicodeString(&KeyName, L"CurrentConfig");
 669         Status = NtQueryValueKey(ConfigHandle,
 670                                  &KeyName,
 671                                  KeyValueFullInformation,
 672                                  ValueInfoBuffer,
 673                                  sizeof(ValueInfoBuffer),
 674                                  &ResultLength);
 675
 676         /* Set pointer to buffer */
 677         ValueInfo = (PKEY_VALUE_FULL_INFORMATION)ValueInfoBuffer;
 678
 679         /* Check if we failed or got a non DWORD-value */
 680         if (!(NT_SUCCESS(Status)) || (ValueInfo->Type != REG_DWORD)) goto Cleanup;
 681
 682         /* Get the hadware profile */
 683         HwProfile = *(PULONG)((PUCHAR)ValueInfo + ValueInfo->DataOffset);
 684     }
 685
 686     /* Open the hardware profile key */
 687     RtlInitUnicodeString(&KeyName,
 688                          L"\\Registry\\Machine\\System\\CurrentControlSet"
 689                          L"\\Hardware Profiles");
 690     InitializeObjectAttributes(&ObjectAttributes,
 691                                &KeyName,
 692                                OBJ_CASE_INSENSITIVE,
 693                                NULL,
 694                                NULL);
 695     Status = NtOpenKey(&ParentHandle, KEY_READ, &ObjectAttributes);
 696     if (!NT_SUCCESS(Status))
 697     {
 698         /* Exit and clean up */
 699         ParentHandle = 0;
 700         goto Cleanup;
 701     }
 702
 703     /* Build the profile name */
 704     sprintf(Buffer, "%04ld", HwProfile);
 705     RtlInitAnsiString(&TempString, Buffer);
 706
 707     /* Convert it to Unicode */
 708     KeyName.MaximumLength = sizeof(UnicodeBuffer);
 709     KeyName.Buffer = UnicodeBuffer;
 710     Status = RtlAnsiStringToUnicodeString(&KeyName,
 711                                           &TempString,
 712                                           FALSE);
 713     ASSERT(Status == STATUS_SUCCESS);
 714
 715     /* Open the associated key */
 716     InitializeObjectAttributes(&ObjectAttributes,
 717                                &KeyName,
 718                                OBJ_CASE_INSENSITIVE,
 719                                ParentHandle,
 720                                NULL);
 721     Status = NtOpenKey(&ProfileHandle,
 722                        KEY_READ | KEY_WRITE,
 723                        &ObjectAttributes);
 724     if (!NT_SUCCESS (Status))
 725     {
 726         /* Cleanup and exit */
 727         ProfileHandle = 0;
 728         goto Cleanup;
 729     }
 730
 731     /* Check if we have a loader block extension */
 732     LoaderExtension = LoaderBlock->Extension;
 733     if (LoaderExtension)
 734     {
 735         DPRINT("ReactOS doesn't support NTLDR Profiles yet!\n");
 736     }
 737
 738     /* Create the current hardware profile key */
 739     RtlInitUnicodeString(&KeyName,
 740                          L"\\Registry\\Machine\\System\\CurrentControlSet\\"
 741                          L"Hardware Profiles\\Current");
 742     InitializeObjectAttributes(&ObjectAttributes,
 743                                &KeyName,
 744                                OBJ_CASE_INSENSITIVE,
 745                                NULL,
 746                                NULL);
 747     Status = NtCreateKey(&KeyHandle,
 748                          KEY_CREATE_LINK,
 749                          &ObjectAttributes,
 750                          0,
 751                          NULL,
 752                          REG_OPTION_VOLATILE | REG_OPTION_CREATE_LINK,
 753                          &Disposition);
 754     if (NT_SUCCESS(Status))
 755     {
 756         /* Sanity check */
 757         ASSERT(Disposition == REG_CREATED_NEW_KEY);
 758
 759         /* Create the profile name */
 760         sprintf(Buffer,
 761                 "\\Registry\\Machine\\System\\CurrentControlSet\\"
 762                 "Hardware Profiles\\%04ld",
 763                 HwProfile);
 764         RtlInitAnsiString(&TempString, Buffer);
 765
 766         /* Convert it to Unicode */
 767         KeyName.MaximumLength = sizeof(UnicodeBuffer);
 768         KeyName.Buffer = UnicodeBuffer;
 769         Status = RtlAnsiStringToUnicodeString(&KeyName,
 770                                               &TempString,
 771                                               FALSE);
 772         ASSERT(STATUS_SUCCESS == Status);
 773
 774         /* Set it */
 775         Status = NtSetValueKey(KeyHandle,
 776                                &CmSymbolicLinkValueName,
 777                                0,
 778                                REG_LINK,
 779                                KeyName.Buffer,
 780                                KeyName.Length);
 781         NtClose(KeyHandle);
 782     }
 783
 784     /* Close every opened handle */
 785 Cleanup:
 786     if (ConfigHandle) NtClose(ConfigHandle);
 787     if (ProfileHandle) NtClose(ProfileHandle);
 788     if (ParentHandle) NtClose(ParentHandle);
 789
 790     DPRINT("CmpCreateControlSet() done\n");
 791
 792     /* Return success */
 793     return STATUS_SUCCESS;
 794 }
 795
 796 NTSTATUS
 797 NTAPI
 798 CmpLinkHiveToMaster(IN PUNICODE_STRING LinkName,
 799                     IN HANDLE RootDirectory,
 800                     IN PCMHIVE RegistryHive,
 801                     IN BOOLEAN Allocate,
 802                     IN PSECURITY_DESCRIPTOR SecurityDescriptor)
 803 {
 804     OBJECT_ATTRIBUTES ObjectAttributes;
 805     NTSTATUS Status;
 806     CM_PARSE_CONTEXT ParseContext = {0};
 807     HANDLE KeyHandle;
 808     PCM_KEY_BODY KeyBody;
 809     PAGED_CODE();
 810
 811     /* Setup the object attributes */
 812     InitializeObjectAttributes(&ObjectAttributes,
 813                                LinkName,
 814                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
 815                                RootDirectory,
 816                                SecurityDescriptor);
 817
 818     /* Setup the parse context */
 819     ParseContext.CreateLink = TRUE;
 820     ParseContext.CreateOperation = TRUE;
 821     ParseContext.ChildHive.KeyHive = &RegistryHive->Hive;
 822
 823     /* Check if we have a root keycell or if we need to create it */
 824     if (Allocate)
 825     {
 826         /* Create it */
 827         ParseContext.ChildHive.KeyCell = HCELL_NIL;
 828     }
 829     else
 830     {
 831         /* We have one */
 832         ParseContext.ChildHive.KeyCell = RegistryHive->Hive.BaseBlock->RootCell;
 833     }
 834
 835     /* Create the link node */
 836     Status = ObOpenObjectByName(&ObjectAttributes,
 837                                 CmpKeyObjectType,
 838                                 KernelMode,
 839                                 NULL,
 840                                 KEY_READ | KEY_WRITE,
 841                                 (PVOID)&ParseContext,
 842                                 &KeyHandle);
 843     if (!NT_SUCCESS(Status)) return Status;
 844
 845     /* Mark the hive as clean */
 846     RegistryHive->Hive.DirtyFlag = FALSE;
 847
 848     /* ReactOS Hack: Keep alive */
 849     Status = ObReferenceObjectByHandle(KeyHandle,
 850                                        0,
 851                                        CmpKeyObjectType,
 852                                        KernelMode,
 853                                        (PVOID*)&KeyBody,
 854                                        NULL);
 855     ASSERT(NT_SUCCESS(Status));
 856
 857     /* Close the extra handle */
 858     ZwClose(KeyHandle);
 859     return STATUS_SUCCESS;
 860 }
 861
 862 BOOLEAN
 863 NTAPI
 864 INIT_FUNCTION
 865 CmpInitializeSystemHive(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
 866 {
 867     PVOID HiveBase;
 868     ANSI_STRING LoadString;
 869     PVOID Buffer;
 870     ULONG Length;
 871     NTSTATUS Status;
 872     BOOLEAN Allocate;
 873     UNICODE_STRING KeyName;
 874     PCMHIVE SystemHive = NULL;
 875     UNICODE_STRING HiveName = RTL_CONSTANT_STRING(L"SYSTEM");
 876     PSECURITY_DESCRIPTOR SecurityDescriptor;
 877     PAGED_CODE();
 878
 879     /* Setup the ansi string */
 880     RtlInitAnsiString(&LoadString, LoaderBlock->LoadOptions);
 881
 882     /* Allocate the unicode buffer */
 883     Length = LoadString.Length * sizeof(WCHAR) + sizeof(UNICODE_NULL);
 884     Buffer = ExAllocatePoolWithTag(PagedPool, Length, TAG_CM);
 885     if (!Buffer)
 886     {
 887         /* Fail */
 888         KeBugCheckEx(BAD_SYSTEM_CONFIG_INFO, 3, 1, (ULONG_PTR)LoaderBlock, 0);
 889     }
 890
 891     /* Setup the unicode string */
 892     RtlInitEmptyUnicodeString(&CmpLoadOptions, Buffer, (USHORT)Length);
 893
 894     /* Add the load options and null-terminate */
 895     RtlAnsiStringToUnicodeString(&CmpLoadOptions, &LoadString, FALSE);
 896     CmpLoadOptions.Buffer[LoadString.Length] = UNICODE_NULL;
 897     CmpLoadOptions.Length += sizeof(WCHAR);
 898
 899     /* Get the System Hive base address */
 900     HiveBase = LoaderBlock->RegistryBase;
 901     if (HiveBase)
 902     {
 903         /* Import it */
 904         Status = CmpInitializeHive(&SystemHive,
 905                                    HINIT_MEMORY,
 906                                    HIVE_NOLAZYFLUSH,
 907                                    HFILE_TYPE_LOG,
 908                                    HiveBase,
 909                                    NULL,
 910                                    NULL,
 911                                    NULL,
 912                                    &HiveName,
 913                                    2);
 914         if (!NT_SUCCESS(Status)) return FALSE;
 915
 916         /* Set the hive filename */
 917         RtlCreateUnicodeString(&SystemHive->FileFullPath,
 918                                L"\\SystemRoot\\System32\\Config\\SYSTEM");
 919
 920         /* We imported, no need to create a new hive */
 921         Allocate = FALSE;
 922
 923         /* Manually set the hive as volatile, if in Live CD mode */
 924         if (CmpShareSystemHives) SystemHive->Hive.HiveFlags = HIVE_VOLATILE;
 925     }
 926     else
 927     {
 928         /* Create it */
 929         Status = CmpInitializeHive(&SystemHive,
 930                                    HINIT_CREATE,
 931                                    HIVE_NOLAZYFLUSH,
 932                                    HFILE_TYPE_LOG,
 933                                    NULL,
 934                                    NULL,
 935                                    NULL,
 936                                    NULL,
 937                                    &HiveName,
 938                                    0);
 939         if (!NT_SUCCESS(Status)) return FALSE;
 940
 941         /* Set the hive filename */
 942         RtlCreateUnicodeString(&SystemHive->FileFullPath,
 943                                L"\\SystemRoot\\System32\\Config\\SYSTEM");
 944
 945         /* Tell CmpLinkHiveToMaster to allocate a hive */
 946         Allocate = TRUE;
 947     }
 948
 949     /* Save the boot type */
 950     CmpBootType = SystemHive->Hive.BaseBlock->BootType;
 951
 952     /* Are we in self-healing mode? */
 953     if (!CmSelfHeal)
 954     {
 955         /* Disable self-healing internally and check if boot type wanted it */
 956         CmpSelfHeal = FALSE;
 957         if (CmpBootType & 4)
 958         {
 959             /* We're disabled, so bugcheck */
 960             KeBugCheckEx(BAD_SYSTEM_CONFIG_INFO,
 961                          3,
 962                          3,
 963                          (ULONG_PTR)SystemHive,
 964                          0);
 965         }
 966     }
 967
 968     /* Create the default security descriptor */
 969     SecurityDescriptor = CmpHiveRootSecurityDescriptor();
 970
 971     /* Attach it to the system key */
 972     RtlInitUnicodeString(&KeyName, L"\\Registry\\Machine\\SYSTEM");
 973     Status = CmpLinkHiveToMaster(&KeyName,
 974                                  NULL,
 975                                  SystemHive,
 976                                  Allocate,
 977                                  SecurityDescriptor);
 978
 979     /* Free the security descriptor */
 980     ExFreePoolWithTag(SecurityDescriptor, TAG_CMSD);
 981     if (!NT_SUCCESS(Status)) return FALSE;
 982
 983     /* Add the hive to the hive list */
 984     CmpMachineHiveList[3].CmHive = SystemHive;
 985
 986     /* Success! */
 987     return TRUE;
 988 }
 989
 990 NTSTATUS
 991 NTAPI
 992 INIT_FUNCTION
 993 CmpCreateObjectTypes(VOID)
 994 {
 995     OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
 996     UNICODE_STRING Name;
 997     GENERIC_MAPPING CmpKeyMapping = {KEY_READ,
 998                                      KEY_WRITE,
 999                                      KEY_EXECUTE,
1000                                      KEY_ALL_ACCESS};
1001     PAGED_CODE();
1002
1003     /* Initialize the Key object type */
1004     RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
1005     RtlInitUnicodeString(&Name, L"Key");
1006     ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
1007     ObjectTypeInitializer.DefaultPagedPoolCharge = sizeof(CM_KEY_BODY);
1008     ObjectTypeInitializer.GenericMapping = CmpKeyMapping;
1009     ObjectTypeInitializer.PoolType = PagedPool;
1010     ObjectTypeInitializer.ValidAccessMask = KEY_ALL_ACCESS;
1011     ObjectTypeInitializer.UseDefaultObject = TRUE;
1012     ObjectTypeInitializer.DeleteProcedure = CmpDeleteKeyObject;
1013     ObjectTypeInitializer.ParseProcedure = CmpParseKey;
1014     ObjectTypeInitializer.SecurityProcedure = CmpSecurityMethod;
1015     ObjectTypeInitializer.QueryNameProcedure = CmpQueryKeyName;
1016     ObjectTypeInitializer.CloseProcedure = CmpCloseKeyObject;
1017     ObjectTypeInitializer.SecurityRequired = TRUE;
1018     ObjectTypeInitializer.InvalidAttributes = OBJ_EXCLUSIVE | OBJ_PERMANENT;
1019
1020     /* Create it */
1021     return ObCreateObjectType(&Name, &ObjectTypeInitializer, NULL, &CmpKeyObjectType);
1022 }
1023
1024 BOOLEAN
1025 NTAPI
1026 INIT_FUNCTION
1027 CmpCreateRootNode(IN PHHIVE Hive,
1028                   IN PCWSTR Name,
1029                   OUT PHCELL_INDEX Index)
1030 {
1031     UNICODE_STRING KeyName;
1032     PCM_KEY_NODE KeyCell;
1033     PAGED_CODE();
1034
1035     /* Initialize the node name and allocate it */
1036     RtlInitUnicodeString(&KeyName, Name);
1037     *Index = HvAllocateCell(Hive,
1038                             FIELD_OFFSET(CM_KEY_NODE, Name) +
1039                             CmpNameSize(Hive, &KeyName),
1040                             Stable,
1041                             HCELL_NIL);
1042     if (*Index == HCELL_NIL) return FALSE;
1043
1044     /* Set the cell index and get the data */
1045     Hive->BaseBlock->RootCell = *Index;
1046     KeyCell = (PCM_KEY_NODE)HvGetCell(Hive, *Index);
1047     if (!KeyCell) return FALSE;
1048
1049     /* Setup the cell */
1050     KeyCell->Signature = CM_KEY_NODE_SIGNATURE;
1051     KeyCell->Flags = KEY_HIVE_ENTRY | KEY_NO_DELETE;
1052     KeQuerySystemTime(&KeyCell->LastWriteTime);
1053     KeyCell->Parent = HCELL_NIL;
1054     KeyCell->SubKeyCounts[Stable] = 0;
1055     KeyCell->SubKeyCounts[Volatile] = 0;
1056     KeyCell->SubKeyLists[Stable] = HCELL_NIL;
1057     KeyCell->SubKeyLists[Volatile] = HCELL_NIL;
1058     KeyCell->ValueList.Count = 0;
1059     KeyCell->ValueList.List = HCELL_NIL;
1060     KeyCell->Security = HCELL_NIL;
1061     KeyCell->Class = HCELL_NIL;
1062     KeyCell->ClassLength = 0;
1063     KeyCell->MaxNameLen = 0;
1064     KeyCell->MaxClassLen = 0;
1065     KeyCell->MaxValueNameLen = 0;
1066     KeyCell->MaxValueDataLen = 0;
1067
1068     /* Copy the name (this will also set the length) */
1069     KeyCell->NameLength = CmpCopyName(Hive, KeyCell->Name, &KeyName);
1070
1071     /* Check if the name was compressed and set the flag if so */
1072     if (KeyCell->NameLength < KeyName.Length)
1073         KeyCell->Flags |= KEY_COMP_NAME;
1074
1075     /* Return success */
1076     HvReleaseCell(Hive, *Index);
1077     return TRUE;
1078 }
1079
1080 BOOLEAN
1081 NTAPI
1082 INIT_FUNCTION
1083 CmpCreateRegistryRoot(VOID)
1084 {
1085     UNICODE_STRING KeyName;
1086     OBJECT_ATTRIBUTES ObjectAttributes;
1087     PCM_KEY_BODY RootKey;
1088     HCELL_INDEX RootIndex;
1089     NTSTATUS Status;
1090     PCM_KEY_NODE KeyCell;
1091     PSECURITY_DESCRIPTOR SecurityDescriptor;
1092     PCM_KEY_CONTROL_BLOCK Kcb;
1093     PAGED_CODE();
1094
1095     /* Setup the root node */
1096     if (!CmpCreateRootNode(&CmiVolatileHive->Hive, L"REGISTRY", &RootIndex))
1097     {
1098         /* We failed */
1099         return FALSE;
1100     }
1101
1102     /* Create '\Registry' key. */
1103     RtlInitUnicodeString(&KeyName, L"\\REGISTRY");
1104     SecurityDescriptor = CmpHiveRootSecurityDescriptor();
1105     InitializeObjectAttributes(&ObjectAttributes,
1106                                &KeyName,
1107                                OBJ_CASE_INSENSITIVE,
1108                                NULL,
1109                                SecurityDescriptor);
1110     Status = ObCreateObject(KernelMode,
1111                             CmpKeyObjectType,
1112                             &ObjectAttributes,
1113                             KernelMode,
1114                             NULL,
1115                             sizeof(CM_KEY_BODY),
1116                             0,
1117                             0,
1118                             (PVOID*)&RootKey);
1119     ExFreePoolWithTag(SecurityDescriptor, TAG_CMSD);
1120     if (!NT_SUCCESS(Status)) return FALSE;
1121
1122     /* Sanity check, and get the key cell */
1123     ASSERT((&CmiVolatileHive->Hive)->ReleaseCellRoutine == NULL);
1124     KeyCell = (PCM_KEY_NODE)HvGetCell(&CmiVolatileHive->Hive, RootIndex);
1125     if (!KeyCell) return FALSE;
1126
1127     /* Create the KCB */
1128     RtlInitUnicodeString(&KeyName, L"\\REGISTRY");
1129     Kcb = CmpCreateKeyControlBlock(&CmiVolatileHive->Hive,
1130                                    RootIndex,
1131                                    KeyCell,
1132                                    NULL,
1133                                    0,
1134                                    &KeyName);
1135     if (!Kcb)
1136     {
1137         ObDereferenceObject(RootKey);
1138         return FALSE;
1139     }
1140
1141     /* Initialize the object */
1142     RootKey->KeyControlBlock = Kcb;
1143     RootKey->Type = CM_KEY_BODY_TYPE;
1144     RootKey->NotifyBlock = NULL;
1145     RootKey->ProcessID = PsGetCurrentProcessId();
1146
1147     /* Link with KCB */
1148     EnlistKeyBodyWithKCB(RootKey, 0);
1149
1150     /* Insert the key into the namespace */
1151     Status = ObInsertObject(RootKey,
1152                             NULL,
1153                             KEY_ALL_ACCESS,
1154                             0,
1155                             NULL,
1156                             &CmpRegistryRootHandle);
1157     if (!NT_SUCCESS(Status))
1158     {
1159         ObDereferenceObject(RootKey);
1160         return FALSE;
1161     }
1162
1163     /* Reference the key again so that we never lose it */
1164     Status = ObReferenceObjectByHandle(CmpRegistryRootHandle,
1165                                        KEY_READ,
1166                                        NULL,
1167                                        KernelMode,
1168                                        (PVOID*)&RootKey,
1169                                        NULL);
1170     if (!NT_SUCCESS(Status))
1171     {
1172         ObDereferenceObject(RootKey);
1173         return FALSE;
1174     }
1175
1176     /* Completely sucessful */
1177     return TRUE;
1178 }
1179
1180 NTSTATUS
1181 NTAPI
1182 CmpGetRegistryPath(OUT PWCHAR ConfigPath)
1183 {
1184     OBJECT_ATTRIBUTES ObjectAttributes;
1185     NTSTATUS Status;
1186     HANDLE KeyHandle;
1187     PKEY_VALUE_PARTIAL_INFORMATION ValueInfo;
1188     UNICODE_STRING KeyName = RTL_CONSTANT_STRING(L"\\Registry\\Machine\\HARDWARE");
1189     UNICODE_STRING ValueName = RTL_CONSTANT_STRING(L"InstallPath");
1190     ULONG BufferSize, ResultSize;
1191
1192     /* Check if we are booted in setup */
1193     if (ExpInTextModeSetup)
1194     {
1195         /* Setup the object attributes */
1196         InitializeObjectAttributes(&ObjectAttributes,
1197                                    &KeyName,
1198                                    OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
1199                                    NULL,
1200                                    NULL);
1201         /* Open the key */
1202         Status =  ZwOpenKey(&KeyHandle,
1203                             KEY_ALL_ACCESS,
1204                             &ObjectAttributes);
1205         if (!NT_SUCCESS(Status)) return Status;
1206
1207         /* Allocate the buffer */
1208         BufferSize = sizeof(KEY_VALUE_PARTIAL_INFORMATION) + 4096;
1209         ValueInfo = ExAllocatePoolWithTag(PagedPool, BufferSize, TAG_CM);
1210         if (!ValueInfo)
1211         {
1212             /* Fail */
1213             ZwClose(KeyHandle);
1214             return STATUS_INSUFFICIENT_RESOURCES;
1215         }
1216
1217         /* Query the value */
1218         Status = ZwQueryValueKey(KeyHandle,
1219                                  &ValueName,
1220                                  KeyValuePartialInformation,
1221                                  ValueInfo,
1222                                  BufferSize,
1223                                  &ResultSize);
1224         ZwClose(KeyHandle);
1225         if (!NT_SUCCESS(Status))
1226         {
1227             /* Fail */
1228             ExFreePoolWithTag(ValueInfo, TAG_CM);
1229             return Status;
1230         }
1231
1232         /* Copy the config path and null-terminate it */
1233         RtlCopyMemory(ConfigPath,
1234                       ValueInfo->Data,
1235                       ValueInfo->DataLength);
1236         ConfigPath[ValueInfo->DataLength / sizeof(WCHAR)] = UNICODE_NULL;
1237         ExFreePoolWithTag(ValueInfo, TAG_CM);
1238     }
1239     else
1240     {
1241         /* Just use default path */
1242         wcscpy(ConfigPath, L"\\SystemRoot");
1243     }
1244
1245     /* Add registry path */
1246     wcscat(ConfigPath, L"\\System32\\Config\\");
1247
1248     /* Done */
1249     return STATUS_SUCCESS;
1250 }
1251
1252 VOID
1253 NTAPI
1254 CmpLoadHiveThread(IN PVOID StartContext)
1255 {
1256     WCHAR FileBuffer[MAX_PATH], RegBuffer[MAX_PATH], ConfigPath[MAX_PATH];
1257     UNICODE_STRING TempName, FileName, RegName;
1258     ULONG i, ErrorResponse, WorkerCount, Length;
1259     USHORT FileStart;
1260     ULONG PrimaryDisposition, SecondaryDisposition, ClusterSize;
1261     PCMHIVE CmHive;
1262     HANDLE PrimaryHandle = NULL, LogHandle = NULL;
1263     NTSTATUS Status = STATUS_SUCCESS;
1264     PVOID ErrorParameters;
1265     PAGED_CODE();
1266
1267     /* Get the hive index, make sure it makes sense */
1268     i = PtrToUlong(StartContext);
1269     ASSERT(CmpMachineHiveList[i].Name != NULL);
1270
1271     /* We were started */
1272     CmpMachineHiveList[i].ThreadStarted = TRUE;
1273
1274     /* Build the file name and registry name strings */
1275     RtlInitEmptyUnicodeString(&FileName, FileBuffer, sizeof(FileBuffer));
1276     RtlInitEmptyUnicodeString(&RegName, RegBuffer, sizeof(RegBuffer));
1277
1278     /* Now build the system root path */
1279     CmpGetRegistryPath(ConfigPath);
1280     RtlInitUnicodeString(&TempName, ConfigPath);
1281     RtlAppendUnicodeStringToString(&FileName, &TempName);
1282     FileStart = FileName.Length;
1283
1284     /* And build the registry root path */
1285     RtlInitUnicodeString(&TempName, L"\\REGISTRY\\");
1286     RtlAppendUnicodeStringToString(&RegName, &TempName);
1287
1288     /* Build the base name */
1289     RtlInitUnicodeString(&TempName, CmpMachineHiveList[i].BaseName);
1290     RtlAppendUnicodeStringToString(&RegName, &TempName);
1291
1292     /* Check if this is a child of the root */
1293     if (RegName.Buffer[RegName.Length / sizeof(WCHAR) - 1] == OBJ_NAME_PATH_SEPARATOR)
1294     {
1295         /* Then setup the whole name */
1296         RtlInitUnicodeString(&TempName, CmpMachineHiveList[i].Name);
1297         RtlAppendUnicodeStringToString(&RegName, &TempName);
1298     }
1299
1300     /* Now add the rest of the file name */
1301     RtlInitUnicodeString(&TempName, CmpMachineHiveList[i].Name);
1302     FileName.Length = FileStart;
1303     RtlAppendUnicodeStringToString(&FileName, &TempName);
1304     if (!CmpMachineHiveList[i].CmHive)
1305     {
1306         /* We need to allocate a new hive structure */
1307         CmpMachineHiveList[i].Allocate = TRUE;
1308
1309         /* Load the hive file */
1310         Status = CmpInitHiveFromFile(&FileName,
1311                                      CmpMachineHiveList[i].HHiveFlags,
1312                                      &CmHive,
1313                                      &CmpMachineHiveList[i].Allocate,
1314                                      0);
1315         if (!(NT_SUCCESS(Status)) ||
1316             (!(CmHive->FileHandles[HFILE_TYPE_LOG]) && !(CmpMiniNTBoot))) // HACK
1317         {
1318             /* We failed or couldn't get a log file, raise a hard error */
1319             ErrorParameters = &FileName;
1320             NtRaiseHardError(STATUS_CANNOT_LOAD_REGISTRY_FILE,
1321                              1,
1322                              1,
1323                              (PULONG_PTR)&ErrorParameters,
1324                              OptionOk,
1325                              &ErrorResponse);
1326         }
1327
1328         /* Set the hive flags and newly allocated hive pointer */
1329         CmHive->Flags = CmpMachineHiveList[i].CmHiveFlags;
1330         CmpMachineHiveList[i].CmHive2 = CmHive;
1331     }
1332     else
1333     {
1334         /* We already have a hive, is it volatile? */
1335         CmHive = CmpMachineHiveList[i].CmHive;
1336         if (!(CmHive->Hive.HiveFlags & HIVE_VOLATILE))
1337         {
1338             /* It's now, open the hive file and log */
1339             Status = CmpOpenHiveFiles(&FileName,
1340                                       L".LOG",
1341                                       &PrimaryHandle,
1342                                       &LogHandle,
1343                                       &PrimaryDisposition,
1344                                       &SecondaryDisposition,
1345                                       TRUE,
1346                                       TRUE,
1347                                       FALSE,
1348                                       &ClusterSize);
1349             if (!(NT_SUCCESS(Status)) || !(LogHandle))
1350             {
1351                 /* Couldn't open the hive or its log file, raise a hard error */
1352                 ErrorParameters = &FileName;
1353                 NtRaiseHardError(STATUS_CANNOT_LOAD_REGISTRY_FILE,
1354                                  1,
1355                                  1,
1356                                  (PULONG_PTR)&ErrorParameters,
1357                                  OptionOk,
1358                                  &ErrorResponse);
1359
1360                 /* And bugcheck for posterity's sake */
1361                 KeBugCheckEx(BAD_SYSTEM_CONFIG_INFO, 9, 0, i, Status);
1362             }
1363
1364             /* Save the file handles. This should remove our sync hacks */
1365             CmHive->FileHandles[HFILE_TYPE_LOG] = LogHandle;
1366             CmHive->FileHandles[HFILE_TYPE_PRIMARY] = PrimaryHandle;
1367
1368             /* Allow lazy flushing since the handles are there -- remove sync hacks */
1369             //ASSERT(CmHive->Hive.HiveFlags & HIVE_NOLAZYFLUSH);
1370             CmHive->Hive.HiveFlags &= ~HIVE_NOLAZYFLUSH;
1371
1372             /* Get the real size of the hive */
1373             Length = CmHive->Hive.Storage[Stable].Length + HBLOCK_SIZE;
1374
1375             /* Check if the cluster size doesn't match */
1376             if (CmHive->Hive.Cluster != ClusterSize) ASSERT(FALSE);
1377
1378             /* Set the file size */
1379             DPRINT("FIXME: Should set file size: %lx\n", Length);
1380             //if (!CmpFileSetSize((PHHIVE)CmHive, HFILE_TYPE_PRIMARY, Length, Length))
1381             {
1382                 /* This shouldn't fail */
1383                 //ASSERT(FALSE);
1384             }
1385
1386             /* Another thing we don't support is NTLDR-recovery */
1387             if (CmHive->Hive.BaseBlock->BootRecover) ASSERT(FALSE);
1388
1389             /* Finally, set our allocated hive to the same hive we've had */
1390             CmpMachineHiveList[i].CmHive2 = CmHive;
1391             ASSERT(CmpMachineHiveList[i].CmHive == CmpMachineHiveList[i].CmHive2);
1392         }
1393     }
1394
1395     /* We're done */
1396     CmpMachineHiveList[i].ThreadFinished = TRUE;
1397
1398     /* Check if we're the last worker */
1399     WorkerCount = InterlockedIncrement(&CmpLoadWorkerIncrement);
1400     if (WorkerCount == CM_NUMBER_OF_MACHINE_HIVES)
1401     {
1402         /* Signal the event */
1403         KeSetEvent(&CmpLoadWorkerEvent, 0, FALSE);
1404     }
1405
1406     /* Kill the thread */
1407     PsTerminateSystemThread(Status);
1408 }
1409
1410 VOID
1411 NTAPI
1412 CmpInitializeHiveList(IN USHORT Flag)
1413 {
1414     WCHAR FileBuffer[MAX_PATH], RegBuffer[MAX_PATH], ConfigPath[MAX_PATH];
1415     UNICODE_STRING TempName, FileName, RegName;
1416     HANDLE Thread;
1417     NTSTATUS Status;
1418     ULONG i;
1419     USHORT RegStart;
1420     PSECURITY_DESCRIPTOR SecurityDescriptor;
1421     PAGED_CODE();
1422
1423     /* Allow writing for now */
1424     CmpNoWrite = FALSE;
1425
1426     /* Build the file name and registry name strings */
1427     RtlInitEmptyUnicodeString(&FileName, FileBuffer, sizeof(FileBuffer));
1428     RtlInitEmptyUnicodeString(&RegName, RegBuffer, sizeof(RegBuffer));
1429
1430     /* Now build the system root path */
1431     CmpGetRegistryPath(ConfigPath);
1432     RtlInitUnicodeString(&TempName, ConfigPath);
1433     RtlAppendUnicodeStringToString(&FileName, &TempName);
1434
1435     /* And build the registry root path */
1436     RtlInitUnicodeString(&TempName, L"\\REGISTRY\\");
1437     RtlAppendUnicodeStringToString(&RegName, &TempName);
1438     RegStart = RegName.Length;
1439
1440     /* Setup the event to synchronize workers */
1441     KeInitializeEvent(&CmpLoadWorkerEvent, SynchronizationEvent, FALSE);
1442
1443     /* Enter special boot condition */
1444     CmpSpecialBootCondition = TRUE;
1445
1446     /* Create the SD for the root hives */
1447     SecurityDescriptor = CmpHiveRootSecurityDescriptor();
1448
1449     /* Loop every hive we care about */
1450     for (i = 0; i < CM_NUMBER_OF_MACHINE_HIVES; i++)
1451     {
1452         /* Make sure the list is setup */
1453         ASSERT(CmpMachineHiveList[i].Name != NULL);
1454
1455         /* Create a thread to handle this hive */
1456         Status = PsCreateSystemThread(&Thread,
1457                                       THREAD_ALL_ACCESS,
1458                                       NULL,
1459                                       0,
1460                                       NULL,
1461                                       CmpLoadHiveThread,
1462                                       UlongToPtr(i));
1463         if (NT_SUCCESS(Status))
1464         {
1465             /* We don't care about the handle -- the thread self-terminates */
1466             ZwClose(Thread);
1467         }
1468         else
1469         {
1470             /* Can't imagine this happening */
1471             KeBugCheckEx(BAD_SYSTEM_CONFIG_INFO, 9, 3, i, Status);
1472         }
1473     }
1474
1475     /* Make sure we've reached the end of the list */
1476     ASSERT(CmpMachineHiveList[i].Name == NULL);
1477
1478     /* Wait for hive loading to finish */
1479     KeWaitForSingleObject(&CmpLoadWorkerEvent,
1480                           Executive,
1481                           KernelMode,
1482                           FALSE,
1483                           NULL);
1484
1485     /* Exit the special boot condition and make sure all workers completed */
1486     CmpSpecialBootCondition = FALSE;
1487     ASSERT(CmpLoadWorkerIncrement == CM_NUMBER_OF_MACHINE_HIVES);
1488
1489     /* Loop hives again */
1490     for (i = 0; i < CM_NUMBER_OF_MACHINE_HIVES; i++)
1491     {
1492         /* Make sure the thread ran and finished */
1493         ASSERT(CmpMachineHiveList[i].ThreadFinished == TRUE);
1494         ASSERT(CmpMachineHiveList[i].ThreadStarted == TRUE);
1495
1496         /* Check if this was a new hive */
1497         if (!CmpMachineHiveList[i].CmHive)
1498         {
1499             /* Make sure we allocated something */
1500             ASSERT(CmpMachineHiveList[i].CmHive2 != NULL);
1501
1502             /* Build the base name */
1503             RegName.Length = RegStart;
1504             RtlInitUnicodeString(&TempName, CmpMachineHiveList[i].BaseName);
1505             RtlAppendUnicodeStringToString(&RegName, &TempName);
1506
1507             /* Check if this is a child of the root */
1508             if (RegName.Buffer[RegName.Length / sizeof(WCHAR) - 1] == OBJ_NAME_PATH_SEPARATOR)
1509             {
1510                 /* Then setup the whole name */
1511                 RtlInitUnicodeString(&TempName, CmpMachineHiveList[i].Name);
1512                 RtlAppendUnicodeStringToString(&RegName, &TempName);
1513             }
1514
1515             /* Now link the hive to its master */
1516             Status = CmpLinkHiveToMaster(&RegName,
1517                                          NULL,
1518                                          CmpMachineHiveList[i].CmHive2,
1519                                          CmpMachineHiveList[i].Allocate,
1520                                          SecurityDescriptor);
1521             if (Status != STATUS_SUCCESS)
1522             {
1523                 /* Linking needs to work */
1524                 KeBugCheckEx(CONFIG_LIST_FAILED, 11, Status, i, (ULONG_PTR)&RegName);
1525             }
1526
1527             /* Check if we had to allocate a new hive */
1528             if (CmpMachineHiveList[i].Allocate)
1529             {
1530                 /* Sync the new hive */
1531                 //HvSyncHive((PHHIVE)(CmpMachineHiveList[i].CmHive2));
1532             }
1533         }
1534
1535         /* Check if we created a new hive */
1536         if (CmpMachineHiveList[i].CmHive2)
1537         {
1538             /* Add to HiveList key */
1539             CmpAddToHiveFileList(CmpMachineHiveList[i].CmHive2);
1540         }
1541     }
1542
1543     /* Get rid of the SD */
1544     ExFreePoolWithTag(SecurityDescriptor, TAG_CMSD);
1545
1546     /* Link SECURITY to SAM */
1547     CmpLinkKeyToHive(L"\\Registry\\Machine\\Security\\SAM",
1548                      L"\\Registry\\Machine\\SAM\\SAM");
1549
1550     /* Link S-1-5-18 to .Default */
1551     CmpNoVolatileCreates = FALSE;
1552     CmpLinkKeyToHive(L"\\Registry\\User\\S-1-5-18",
1553                      L"\\Registry\\User\\.Default");
1554     CmpNoVolatileCreates = TRUE;
1555 }
1556
1557 BOOLEAN
1558 NTAPI
1559 INIT_FUNCTION
1560 CmInitSystem1(VOID)
1561 {
1562     OBJECT_ATTRIBUTES ObjectAttributes;
1563     UNICODE_STRING KeyName;
1564     HANDLE KeyHandle;
1565     NTSTATUS Status;
1566     PCMHIVE HardwareHive;
1567     PSECURITY_DESCRIPTOR SecurityDescriptor;
1568     PAGED_CODE();
1569
1570     /* Check if this is PE-boot */
1571     if (InitIsWinPEMode)
1572     {
1573         /* Set registry to PE mode */
1574         CmpMiniNTBoot = TRUE;
1575         CmpShareSystemHives = TRUE;
1576     }
1577
1578     /* Initialize the hive list and lock */
1579     InitializeListHead(&CmpHiveListHead);
1580     ExInitializePushLock(&CmpHiveListHeadLock);
1581     ExInitializePushLock(&CmpLoadHiveLock);
1582
1583     /* Initialize registry lock */
1584     ExInitializeResourceLite(&CmpRegistryLock);
1585
1586     /* Initialize the cache */
1587     CmpInitializeCache();
1588
1589     /* Initialize allocation and delayed dereferencing */
1590     CmpInitCmPrivateAlloc();
1591     CmpInitCmPrivateDelayAlloc();
1592     CmpInitDelayDerefKCBEngine();
1593
1594     /* Initialize callbacks */
1595     CmpInitCallback();
1596
1597     /* Initialize self healing */
1598     KeInitializeGuardedMutex(&CmpSelfHealQueueLock);
1599     InitializeListHead(&CmpSelfHealQueueListHead);
1600
1601     /* Save the current process and lock the registry */
1602     CmpSystemProcess = PsGetCurrentProcess();
1603
1604     /* Create the key object types */
1605     Status = CmpCreateObjectTypes();
1606     if (!NT_SUCCESS(Status))
1607     {
1608         /* Bugcheck */
1609         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 1, Status, 0);
1610     }
1611
1612     /* Build the master hive */
1613     Status = CmpInitializeHive(&CmiVolatileHive,
1614                                HINIT_CREATE,
1615                                HIVE_VOLATILE,
1616                                HFILE_TYPE_PRIMARY,
1617                                NULL,
1618                                NULL,
1619                                NULL,
1620                                NULL,
1621                                NULL,
1622                                0);
1623     if (!NT_SUCCESS(Status))
1624     {
1625         /* Bugcheck */
1626         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 2, Status, 0);
1627     }
1628
1629     /* Create the \REGISTRY key node */
1630     if (!CmpCreateRegistryRoot())
1631     {
1632         /* Bugcheck */
1633         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 3, 0, 0);
1634     }
1635
1636     /* Create the default security descriptor */
1637     SecurityDescriptor = CmpHiveRootSecurityDescriptor();
1638
1639     /* Create '\Registry\Machine' key. */
1640     RtlInitUnicodeString(&KeyName, L"\\REGISTRY\\MACHINE");
1641     InitializeObjectAttributes(&ObjectAttributes,
1642                                &KeyName,
1643                                OBJ_CASE_INSENSITIVE,
1644                                NULL,
1645                                SecurityDescriptor);
1646     Status = NtCreateKey(&KeyHandle,
1647                          KEY_READ | KEY_WRITE,
1648                          &ObjectAttributes,
1649                          0,
1650                          NULL,
1651                          0,
1652                          NULL);
1653     if (!NT_SUCCESS(Status))
1654     {
1655         /* Bugcheck */
1656         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 5, Status, 0);
1657     }
1658
1659     /* Close the handle */
1660     NtClose(KeyHandle);
1661
1662     /* Create '\Registry\User' key. */
1663     RtlInitUnicodeString(&KeyName, L"\\REGISTRY\\USER");
1664     InitializeObjectAttributes(&ObjectAttributes,
1665                                &KeyName,
1666                                OBJ_CASE_INSENSITIVE,
1667                                NULL,
1668                                SecurityDescriptor);
1669     Status = NtCreateKey(&KeyHandle,
1670                          KEY_READ | KEY_WRITE,
1671                          &ObjectAttributes,
1672                          0,
1673                          NULL,
1674                          0,
1675                          NULL);
1676     if (!NT_SUCCESS(Status))
1677     {
1678         /* Bugcheck */
1679         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 6, Status, 0);
1680     }
1681
1682     /* Close the handle */
1683     NtClose(KeyHandle);
1684
1685     /* After this point, do not allow creating keys in the master hive */
1686     CmpNoVolatileCreates = TRUE;
1687
1688     /* Initialize the system hive */
1689     if (!CmpInitializeSystemHive(KeLoaderBlock))
1690     {
1691         /* Bugcheck */
1692         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 7, 0, 0);
1693     }
1694
1695     /* Create the 'CurrentControlSet' link. */
1696     Status = CmpCreateControlSet(KeLoaderBlock);
1697     if (!NT_SUCCESS(Status))
1698     {
1699         /* Bugcheck */
1700         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 8, Status, 0);
1701     }
1702
1703     /* Create the hardware hive */
1704     Status = CmpInitializeHive(&HardwareHive,
1705                                HINIT_CREATE,
1706                                HIVE_VOLATILE,
1707                                HFILE_TYPE_PRIMARY,
1708                                NULL,
1709                                NULL,
1710                                NULL,
1711                                NULL,
1712                                NULL,
1713                                0);
1714     if (!NT_SUCCESS(Status))
1715     {
1716         /* Bugcheck */
1717         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 11, Status, 0);
1718     }
1719
1720     /* Add the hive to the hive list */
1721     CmpMachineHiveList[0].CmHive = HardwareHive;
1722
1723     /* Attach it to the machine key */
1724     RtlInitUnicodeString(&KeyName, L"\\Registry\\Machine\\HARDWARE");
1725     Status = CmpLinkHiveToMaster(&KeyName,
1726                                  NULL,
1727                                  HardwareHive,
1728                                  TRUE,
1729                                  SecurityDescriptor);
1730     if (!NT_SUCCESS(Status))
1731     {
1732         /* Bugcheck */
1733         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 12, Status, 0);
1734     }
1735
1736     /* Add to HiveList key */
1737     CmpAddToHiveFileList(HardwareHive);
1738
1739     /* Free the security descriptor */
1740     ExFreePoolWithTag(SecurityDescriptor, TAG_CMSD);
1741
1742     /* Fill out the Hardware key with the ARC Data from the Loader */
1743     Status = CmpInitializeHardwareConfiguration(KeLoaderBlock);
1744     if (!NT_SUCCESS(Status))
1745     {
1746         /* Bugcheck */
1747         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 13, Status, 0);
1748     }
1749
1750     /* Initialize machine-dependent information into the registry */
1751     Status = CmpInitializeMachineDependentConfiguration(KeLoaderBlock);
1752     if (!NT_SUCCESS(Status))
1753     {
1754         /* Bugcheck */
1755         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 14, Status, 0);
1756     }
1757
1758     /* Initialize volatile registry settings */
1759     Status = CmpSetSystemValues(KeLoaderBlock);
1760     if (!NT_SUCCESS(Status))
1761     {
1762         /* Bugcheck */
1763         KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 1, 15, Status, 0);
1764     }
1765
1766     /* Free the load options */
1767     ExFreePoolWithTag(CmpLoadOptions.Buffer, TAG_CM);
1768
1769     /* If we got here, all went well */
1770     return TRUE;
1771 }
1772
1773 VOID
1774 NTAPI
1775 INIT_FUNCTION
1776 CmpFreeDriverList(IN PHHIVE Hive,
1777                   IN PLIST_ENTRY DriverList)
1778 {
1779     PLIST_ENTRY NextEntry, OldEntry;
1780     PBOOT_DRIVER_NODE DriverNode;
1781     PAGED_CODE();
1782
1783     /* Parse the current list */
1784     NextEntry = DriverList->Flink;
1785     while (NextEntry != DriverList)
1786     {
1787         /* Get the driver node */
1788         DriverNode = CONTAINING_RECORD(NextEntry, BOOT_DRIVER_NODE, ListEntry.Link);
1789
1790         /* Get the next entry now, since we're going to free it later */
1791         OldEntry = NextEntry;
1792         NextEntry = NextEntry->Flink;
1793
1794         /* Was there a name? */
1795         if (DriverNode->Name.Buffer)
1796         {
1797             /* Free it */
1798             CmpFree(DriverNode->Name.Buffer, DriverNode->Name.Length);
1799         }
1800
1801         /* Was there a registry path? */
1802         if (DriverNode->ListEntry.RegistryPath.Buffer)
1803         {
1804             /* Free it */
1805             CmpFree(DriverNode->ListEntry.RegistryPath.Buffer,
1806                     DriverNode->ListEntry.RegistryPath.MaximumLength);
1807         }
1808
1809         /* Was there a file path? */
1810         if (DriverNode->ListEntry.FilePath.Buffer)
1811         {
1812             /* Free it */
1813             CmpFree(DriverNode->ListEntry.FilePath.Buffer,
1814                     DriverNode->ListEntry.FilePath.MaximumLength);
1815         }
1816
1817         /* Now free the node, and move on */
1818         CmpFree(OldEntry, sizeof(BOOT_DRIVER_NODE));
1819     }
1820 }
1821
1822 PUNICODE_STRING*
1823 NTAPI
1824 INIT_FUNCTION
1825 CmGetSystemDriverList(VOID)
1826 {
1827     LIST_ENTRY DriverList;
1828     OBJECT_ATTRIBUTES ObjectAttributes;
1829     NTSTATUS Status;
1830     PCM_KEY_BODY KeyBody;
1831     PHHIVE Hive;
1832     HCELL_INDEX RootCell, ControlCell;
1833     HANDLE KeyHandle;
1834     UNICODE_STRING KeyName;
1835     PLIST_ENTRY NextEntry;
1836     ULONG i;
1837     PUNICODE_STRING* ServicePath = NULL;
1838     BOOLEAN Success, AutoSelect;
1839     PBOOT_DRIVER_LIST_ENTRY DriverEntry;
1840     PAGED_CODE();
1841
1842     /* Initialize the driver list */
1843     InitializeListHead(&DriverList);
1844
1845     /* Open the system hive key */
1846     RtlInitUnicodeString(&KeyName, L"\\Registry\\Machine\\System");
1847     InitializeObjectAttributes(&ObjectAttributes,
1848                                &KeyName,
1849                                OBJ_CASE_INSENSITIVE,
1850                                NULL,
1851                                NULL);
1852     Status = NtOpenKey(&KeyHandle, KEY_READ, &ObjectAttributes);
1853     if (!NT_SUCCESS(Status)) return NULL;
1854
1855     /* Reference the key object to get the root hive/cell to access directly */
1856     Status = ObReferenceObjectByHandle(KeyHandle,
1857                                        KEY_QUERY_VALUE,
1858                                        CmpKeyObjectType,
1859                                        KernelMode,
1860                                        (PVOID*)&KeyBody,
1861                                        NULL);
1862     if (!NT_SUCCESS(Status))
1863     {
1864         /* Fail */
1865         NtClose(KeyHandle);
1866         return NULL;
1867     }
1868
1869     /* Do all this under the registry lock */
1870     CmpLockRegistryExclusive();
1871
1872     /* Get the hive and key cell */
1873     Hive = KeyBody->KeyControlBlock->KeyHive;
1874     RootCell = KeyBody->KeyControlBlock->KeyCell;
1875
1876     /* Open the current control set key */
1877     RtlInitUnicodeString(&KeyName, L"Current");
1878     ControlCell = CmpFindControlSet(Hive, RootCell, &KeyName, &AutoSelect);
1879     if (ControlCell == HCELL_NIL) goto EndPath;
1880
1881     /* Find all system drivers */
1882     Success = CmpFindDrivers(Hive, ControlCell, SystemLoad, NULL, &DriverList);
1883     if (!Success) goto EndPath;
1884
1885     /* Sort by group/tag */
1886     if (!CmpSortDriverList(Hive, ControlCell, &DriverList)) goto EndPath;
1887
1888     /* Remove circular dependencies (cycles) and sort */
1889     if (!CmpResolveDriverDependencies(&DriverList)) goto EndPath;
1890
1891     /* Loop the list to count drivers */
1892     for (i = 0, NextEntry = DriverList.Flink;
1893          NextEntry != &DriverList;
1894          i++, NextEntry = NextEntry->Flink);
1895
1896     /* Allocate the array */
1897     ServicePath = ExAllocatePool(NonPagedPool, (i + 1) * sizeof(PUNICODE_STRING));
1898     if (!ServicePath) KeBugCheckEx(CONFIG_INITIALIZATION_FAILED, 2, 1, 0, 0);
1899
1900     /* Loop the driver list */
1901     for (i = 0, NextEntry = DriverList.Flink;
1902          NextEntry != &DriverList;
1903          i++, NextEntry = NextEntry->Flink)
1904     {
1905         /* Get the entry */
1906         DriverEntry = CONTAINING_RECORD(NextEntry, BOOT_DRIVER_LIST_ENTRY, Link);
1907
1908         /* Allocate the path for the caller and duplicate the registry path */
1909         ServicePath[i] = ExAllocatePool(NonPagedPool, sizeof(UNICODE_STRING));
1910         RtlDuplicateUnicodeString(RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE,
1911                                   &DriverEntry->RegistryPath,
1912                                   ServicePath[i]);
1913     }
1914
1915     /* Terminate the list */
1916     ServicePath[i] = NULL;
1917
1918 EndPath:
1919     /* Free the driver list if we had one */
1920     if (!IsListEmpty(&DriverList)) CmpFreeDriverList(Hive, &DriverList);
1921
1922     /* Unlock the registry */
1923     CmpUnlockRegistry();
1924
1925     /* Close the key handle and dereference the object, then return the path */
1926     ObDereferenceObject(KeyBody);
1927     NtClose(KeyHandle);
1928     return ServicePath;
1929 }
1930
1931 VOID
1932 NTAPI
1933 CmpLockRegistryExclusive(VOID)
1934 {
1935     /* Enter a critical region and lock the registry */
1936     KeEnterCriticalRegion();
1937     ExAcquireResourceExclusiveLite(&CmpRegistryLock, TRUE);
1938
1939     /* Sanity check */
1940     ASSERT(CmpFlushStarveWriters == 0);
1941     RtlGetCallersAddress(&CmpRegistryLockCaller, &CmpRegistryLockCallerCaller);
1942 }
1943
1944 VOID
1945 NTAPI
1946 CmpLockRegistry(VOID)
1947 {
1948     /* Enter a critical region */
1949     KeEnterCriticalRegion();
1950
1951     /* Check if we have to starve writers */
1952     if (CmpFlushStarveWriters)
1953     {
1954         /* Starve exlusive waiters */
1955         ExAcquireSharedStarveExclusive(&CmpRegistryLock, TRUE);
1956     }
1957     else
1958     {
1959         /* Just grab the lock */
1960         ExAcquireResourceSharedLite(&CmpRegistryLock, TRUE);
1961     }
1962 }
1963
1964 BOOLEAN
1965 NTAPI
1966 CmpTestRegistryLock(VOID)
1967 {
1968     /* Test the lock */
1969     return !ExIsResourceAcquiredSharedLite(&CmpRegistryLock) ? FALSE : TRUE;
1970 }
1971
1972 BOOLEAN
1973 NTAPI
1974 CmpTestRegistryLockExclusive(VOID)
1975 {
1976     /* Test the lock */
1977     return !ExIsResourceAcquiredExclusiveLite(&CmpRegistryLock) ? FALSE : TRUE;
1978 }
1979
1980 VOID
1981 NTAPI
1982 CmpLockHiveFlusherExclusive(IN PCMHIVE Hive)
1983 {
1984     /* Lock the flusher. We should already be in a critical section */
1985     CMP_ASSERT_REGISTRY_LOCK_OR_LOADING(Hive);
1986     ASSERT((ExIsResourceAcquiredShared(Hive->FlusherLock) == 0) &&
1987            (ExIsResourceAcquiredExclusiveLite(Hive->FlusherLock) == 0));
1988     ExAcquireResourceExclusiveLite(Hive->FlusherLock, TRUE);
1989 }
1990
1991 VOID
1992 NTAPI
1993 CmpLockHiveFlusherShared(IN PCMHIVE Hive)
1994 {
1995     /* Lock the flusher. We should already be in a critical section */
1996     CMP_ASSERT_REGISTRY_LOCK_OR_LOADING(Hive);
1997     ASSERT((ExIsResourceAcquiredShared(Hive->FlusherLock) == 0) &&
1998            (ExIsResourceAcquiredExclusiveLite(Hive->FlusherLock) == 0));
1999     ExAcquireResourceSharedLite(Hive->FlusherLock, TRUE);
2000 }
2001
2002 VOID
2003 NTAPI
2004 CmpUnlockHiveFlusher(IN PCMHIVE Hive)
2005 {
2006     /* Sanity check */
2007     CMP_ASSERT_REGISTRY_LOCK_OR_LOADING(Hive);
2008     CMP_ASSERT_FLUSH_LOCK(Hive);
2009
2010     /* Release the lock */
2011     ExReleaseResourceLite(Hive->FlusherLock);
2012 }
2013
2014 BOOLEAN
2015 NTAPI
2016 CmpTestHiveFlusherLockShared(IN PCMHIVE Hive)
2017 {
2018     /* Test the lock */
2019     return !ExIsResourceAcquiredSharedLite(Hive->FlusherLock) ? FALSE : TRUE;
2020 }
2021
2022 BOOLEAN
2023 NTAPI
2024 CmpTestHiveFlusherLockExclusive(IN PCMHIVE Hive)
2025 {
2026     /* Test the lock */
2027     return !ExIsResourceAcquiredExclusiveLite(Hive->FlusherLock) ? FALSE : TRUE;
2028 }
2029
2030 VOID
2031 NTAPI
2032 CmpUnlockRegistry(VOID)
2033 {
2034     /* Sanity check */
2035     CMP_ASSERT_REGISTRY_LOCK();
2036
2037     /* Check if we should flush the registry */
2038     if (CmpFlushOnLockRelease)
2039     {
2040         /* The registry should be exclusively locked for this */
2041         CMP_ASSERT_EXCLUSIVE_REGISTRY_LOCK();
2042
2043         /* Flush the registry */
2044         CmpDoFlushAll(TRUE);
2045         CmpFlushOnLockRelease = FALSE;
2046     }
2047     else
2048     {
2049         /* Lazy flush the registry */
2050         CmpLazyFlush();
2051     }
2052
2053     /* Release the lock and leave the critical region */
2054     ExReleaseResourceLite(&CmpRegistryLock);
2055     KeLeaveCriticalRegion();
2056 }
2057
2058 VOID
2059 NTAPI
2060 CmpAcquireTwoKcbLocksExclusiveByKey(IN ULONG ConvKey1,
2061                                     IN ULONG ConvKey2)
2062 {
2063     ULONG Index1, Index2;
2064
2065     /* Sanity check */
2066     CMP_ASSERT_REGISTRY_LOCK();
2067
2068     /* Get hash indexes */
2069     Index1 = GET_HASH_INDEX(ConvKey1);
2070     Index2 = GET_HASH_INDEX(ConvKey2);
2071
2072     /* See which one is highest */
2073     if (Index1 < Index2)
2074     {
2075         /* Grab them in the proper order */
2076         CmpAcquireKcbLockExclusiveByKey(ConvKey1);
2077         CmpAcquireKcbLockExclusiveByKey(ConvKey2);
2078     }
2079     else
2080     {
2081         /* Grab the second one first, then the first */
2082         CmpAcquireKcbLockExclusiveByKey(ConvKey2);
2083         if (Index1 != Index2) CmpAcquireKcbLockExclusiveByKey(ConvKey1);
2084     }
2085 }
2086
2087 VOID
2088 NTAPI
2089 CmpReleaseTwoKcbLockByKey(IN ULONG ConvKey1,
2090                           IN ULONG ConvKey2)
2091 {
2092     ULONG Index1, Index2;
2093
2094     /* Sanity check */
2095     CMP_ASSERT_REGISTRY_LOCK();
2096
2097     /* Get hash indexes */
2098     Index1 = GET_HASH_INDEX(ConvKey1);
2099     Index2 = GET_HASH_INDEX(ConvKey2);
2100     ASSERT((GET_HASH_ENTRY(CmpCacheTable, ConvKey2).Owner == KeGetCurrentThread()) ||
2101            (CmpTestRegistryLockExclusive()));
2102
2103     /* See which one is highest */
2104     if (Index1 < Index2)
2105     {
2106         /* Grab them in the proper order */
2107         ASSERT((GET_HASH_ENTRY(CmpCacheTable, ConvKey1).Owner == KeGetCurrentThread()) ||
2108                (CmpTestRegistryLockExclusive()));
2109         CmpReleaseKcbLockByKey(ConvKey2);
2110         CmpReleaseKcbLockByKey(ConvKey1);
2111     }
2112     else
2113     {
2114         /* Release the first one first, then the second */
2115         if (Index1 != Index2)
2116         {
2117             ASSERT((GET_HASH_ENTRY(CmpCacheTable, ConvKey1).Owner == KeGetCurrentThread()) ||
2118                    (CmpTestRegistryLockExclusive()));
2119             CmpReleaseKcbLockByKey(ConvKey1);
2120         }
2121         CmpReleaseKcbLockByKey(ConvKey2);
2122     }
2123 }
2124
2125 VOID
2126 NTAPI
2127 CmShutdownSystem(VOID)
2128 {
2129     PLIST_ENTRY ListEntry;
2130     PCMHIVE Hive;
2131
2132     /* Kill the workers */
2133     if (!CmFirstTime) CmpShutdownWorkers();
2134
2135     /* Flush all hives */
2136     CmpLockRegistryExclusive();
2137     CmpDoFlushAll(TRUE);
2138
2139     /* Close all hive files */
2140     ListEntry = CmpHiveListHead.Flink;
2141     while (ListEntry != &CmpHiveListHead)
2142     {
2143         Hive = CONTAINING_RECORD(ListEntry, CMHIVE, HiveList);
2144
2145         CmpCloseHiveFiles(Hive);
2146
2147         ListEntry = ListEntry->Flink;
2148     }
2149
2150     CmpUnlockRegistry();
2151 }
2152
2153 VOID
2154 NTAPI
2155 CmpSetVersionData(VOID)
2156 {
2157     NTSTATUS Status;
2158     OBJECT_ATTRIBUTES ObjectAttributes;
2159     UNICODE_STRING KeyName;
2160     UNICODE_STRING ValueName;
2161     UNICODE_STRING ValueData;
2162     ANSI_STRING TempString;
2163     HANDLE SoftwareKeyHandle = NULL;
2164     HANDLE MicrosoftKeyHandle = NULL;
2165     HANDLE WindowsNtKeyHandle = NULL;
2166     HANDLE CurrentVersionKeyHandle = NULL;
2167     WCHAR Buffer[128]; // Buffer large enough to contain a full ULONG in decimal representation,
2168                        // and the full 'CurrentType' string.
2169
2170     /*
2171      * Open the 'HKLM\Software\Microsoft\Windows NT\CurrentVersion' key
2172      * (create the intermediate subkeys if needed).
2173      */
2174
2175     RtlInitUnicodeString(&KeyName, L"\\REGISTRY\\MACHINE\\SOFTWARE");
2176     InitializeObjectAttributes(&ObjectAttributes,
2177                                &KeyName,
2178                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
2179                                NULL,
2180                                NULL);
2181     Status = NtCreateKey(&SoftwareKeyHandle,
2182                          KEY_CREATE_SUB_KEY,
2183                          &ObjectAttributes,
2184                          0,
2185                          NULL,
2186                          0,
2187                          NULL);
2188     if (!NT_SUCCESS(Status))
2189     {
2190         DPRINT1("Failed to create key %wZ (Status: %08lx)\n", &KeyName, Status);
2191         return;
2192     }
2193
2194     RtlInitUnicodeString(&KeyName, L"Microsoft");
2195     InitializeObjectAttributes(&ObjectAttributes,
2196                                &KeyName,
2197                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
2198                                SoftwareKeyHandle,
2199                                NULL);
2200     Status = NtCreateKey(&MicrosoftKeyHandle,
2201                          KEY_CREATE_SUB_KEY,
2202                          &ObjectAttributes,
2203                          0,
2204                          NULL,
2205                          0,
2206                          NULL);
2207     if (!NT_SUCCESS(Status))
2208     {
2209         DPRINT1("Failed to create key %wZ (Status: %08lx)\n", &KeyName, Status);
2210         goto Quit;
2211     }
2212
2213     RtlInitUnicodeString(&KeyName, L"Windows NT");
2214     InitializeObjectAttributes(&ObjectAttributes,
2215                                &KeyName,
2216                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
2217                                MicrosoftKeyHandle,
2218                                NULL);
2219     Status = NtCreateKey(&WindowsNtKeyHandle,
2220                          KEY_CREATE_SUB_KEY,
2221                          &ObjectAttributes,
2222                          0,
2223                          NULL,
2224                          0,
2225                          NULL);
2226     if (!NT_SUCCESS(Status))
2227     {
2228         DPRINT1("Failed to create key %wZ (Status: %08lx)\n", &KeyName, Status);
2229         goto Quit;
2230     }
2231
2232     RtlInitUnicodeString(&KeyName, L"CurrentVersion");
2233     InitializeObjectAttributes(&ObjectAttributes,
2234                                &KeyName,
2235                                OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
2236                                WindowsNtKeyHandle,
2237                                NULL);
2238     Status = NtCreateKey(&CurrentVersionKeyHandle,
2239                          KEY_CREATE_SUB_KEY | KEY_SET_VALUE,
2240                          &ObjectAttributes,
2241                          0,
2242                          NULL,
2243                          0,
2244                          NULL);
2245     if (!NT_SUCCESS(Status))
2246     {
2247         DPRINT1("Failed to create key %wZ (Status: %08lx)\n", &KeyName, Status);
2248         goto Quit;
2249     }
2250
2251     /* Set the 'CurrentVersion' value */
2252     RtlInitUnicodeString(&ValueName, L"CurrentVersion");
2253     NtSetValueKey(CurrentVersionKeyHandle,
2254                   &ValueName,
2255                   0,
2256                   REG_SZ,
2257                   CmVersionString.Buffer,
2258                   CmVersionString.Length + sizeof(WCHAR));
2259
2260     /* Set the 'CurrentBuildNumber' value */
2261     RtlInitUnicodeString(&ValueName, L"CurrentBuildNumber");
2262     RtlInitEmptyUnicodeString(&ValueData, Buffer, sizeof(Buffer));
2263     RtlIntegerToUnicodeString(NtBuildNumber & 0xFFFF, 10, &ValueData);
2264     NtSetValueKey(CurrentVersionKeyHandle,
2265                   &ValueName,
2266                   0,
2267                   REG_SZ,
2268                   ValueData.Buffer,
2269                   ValueData.Length + sizeof(WCHAR));
2270
2271     /* Set the 'BuildLab' value */
2272     RtlInitUnicodeString(&ValueName, L"BuildLab");
2273     RtlInitAnsiString(&TempString, NtBuildLab);
2274     Status = RtlAnsiStringToUnicodeString(&ValueData, &TempString, FALSE);
2275     if (NT_SUCCESS(Status))
2276     {
2277         NtSetValueKey(CurrentVersionKeyHandle,
2278                       &ValueName,
2279                       0,
2280                       REG_SZ,
2281                       ValueData.Buffer,
2282                       ValueData.Length + sizeof(WCHAR));
2283     }
2284
2285     /* Set the 'CurrentType' value */
2286     RtlInitUnicodeString(&ValueName, L"CurrentType");
2287
2288     swprintf(Buffer, L"%s %s",
2289 #ifdef CONFIG_SMP
2290              L"Multiprocessor"
2291 #else
2292              L"Uniprocessor"
2293 #endif
2294              ,
2295 #if (DBG == 1)
2296              L"Checked"
2297 #else
2298              L"Free"
2299 #endif
2300              );
2301     RtlInitUnicodeString(&ValueData, Buffer);
2302     NtSetValueKey(CurrentVersionKeyHandle,
2303                   &ValueName,
2304                   0,
2305                   REG_SZ,
2306                   ValueData.Buffer,
2307                   ValueData.Length + sizeof(WCHAR));
2308
2309     /* Set the 'CSDVersion' value */
2310     RtlInitUnicodeString(&ValueName, L"CSDVersion");
2311     if (CmCSDVersionString.Length != 0)
2312     {
2313         NtSetValueKey(CurrentVersionKeyHandle,
2314                       &ValueName,
2315                       0,
2316                       REG_SZ,
2317                       CmCSDVersionString.Buffer,
2318                       CmCSDVersionString.Length + sizeof(WCHAR));
2319     }
2320     else
2321     {
2322         NtDeleteValueKey(CurrentVersionKeyHandle, &ValueName);
2323     }
2324
2325     /* Set the 'CSDBuildNumber' value */
2326     RtlInitUnicodeString(&ValueName, L"CSDBuildNumber");
2327     if (CmNtSpBuildNumber != 0)
2328     {
2329         RtlInitEmptyUnicodeString(&ValueData, Buffer, sizeof(Buffer));
2330         RtlIntegerToUnicodeString(CmNtSpBuildNumber, 10, &ValueData);
2331         NtSetValueKey(CurrentVersionKeyHandle,
2332                       &ValueName,
2333                       0,
2334                       REG_SZ,
2335                       ValueData.Buffer,
2336                       ValueData.Length + sizeof(WCHAR));
2337     }
2338     else
2339     {
2340         NtDeleteValueKey(CurrentVersionKeyHandle, &ValueName);
2341     }
2342
2343     /* Set the 'SystemRoot' value */
2344     RtlInitUnicodeString(&ValueName, L"SystemRoot");
2345     NtSetValueKey(CurrentVersionKeyHandle,
2346                   &ValueName,
2347                   0,
2348                   REG_SZ,
2349                   NtSystemRoot.Buffer,
2350                   NtSystemRoot.Length + sizeof(WCHAR));
2351
2352 Quit:
2353     /* Close the keys */
2354     if (CurrentVersionKeyHandle != NULL)
2355         NtClose(CurrentVersionKeyHandle);
2356
2357     if (WindowsNtKeyHandle != NULL)
2358         NtClose(WindowsNtKeyHandle);
2359
2360     if (MicrosoftKeyHandle != NULL)
2361         NtClose(MicrosoftKeyHandle);
2362
2363     if (SoftwareKeyHandle != NULL)
2364         NtClose(SoftwareKeyHandle);
2365 }
2366
2367 /* EOF */