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Showing content from https://github.com/reactos/reactos/commit/feb67576ddf09b847c6ecf7b8fd9675ccf74e11c below:

[NTOS:CM][CMLIB] In PE mode, allow registry hives (except system ones… · reactos/reactos@feb6757 · GitHub

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 @@ -54,11 +54,14 @@ UNICODE_STRING CmSymbolicLinkValueName =

54 54 55 55


 UNICODE_STRING CmpLoadOptions;

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+
 /* TRUE if the system hives must be loaded in shared mode */

57 58


 BOOLEAN CmpShareSystemHives;

58

-
 BOOLEAN CmSelfHeal = TRUE;

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-
 BOOLEAN CmpSelfHeal = TRUE;

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+
 /* TRUE when the registry is in PE mode */

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 BOOLEAN CmpMiniNTBoot;

61 + 61 62


 ULONG CmpBootType;

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+
 BOOLEAN CmSelfHeal = TRUE;

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+
 BOOLEAN CmpSelfHeal = TRUE;

62 65 63 66


 USHORT CmpUnknownBusCount;

64 67


 ULONG CmpTypeCount[MaximumType + 1];

Original file line number Diff line number Diff line change


 @@ -261,9 +261,14 @@ CmpCmdInit(IN BOOLEAN SetupBoot)

261 261


 /* Testing: Force Lazy Flushing */

262 262


 CmpHoldLazyFlush = FALSE;

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-
 /* Setup the hive list if this is not a Setup boot */

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+
 /* Setup the system hives list if this is not a Setup boot */

265 265


 if (!SetupBoot)

266 266


 CmpInitializeHiveList();

267 + 268

+
 /* Now that the system hives are loaded, if we are in PE mode,

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+
  * all other hives will be loaded with full access */

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+
 if (CmpMiniNTBoot)

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+
 CmpShareSystemHives = FALSE;

267 272

268 273 269 274


 NTSTATUS

Original file line number Diff line number Diff line change


 @@ -332,7 +332,7 @@ CmpInitHiveFromFile(IN PCUNICODE_STRING HiveName,

332 332


 *New = FALSE;

333 333

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-
 /* Check if we're sharing hives */

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+
 /* Check if the system hives are opened in shared mode */

336 336


 if (CmpShareSystemHives)

337 337

338 338


 /* Then force using the primary hive */


 @@ -928,11 +928,9 @@ CmpInitializeSystemHive(IN PLOADER_PARAMETER_BLOCK LoaderBlock)

928 928


 if (!RtlCreateUnicodeString(&SystemHive->FileFullPath, L"\\SystemRoot\\System32\\Config\\SYSTEM"))

929 929


 return FALSE;

930 930 931

-
 /* Manually set the hive as volatile, if in Live CD mode */

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+
 /* Load the system hive as volatile, if opened in shared mode */

932 932


 if (HiveBase && CmpShareSystemHives)

933

-
 {

934 933


 SystemHive->Hive.HiveFlags = HIVE_VOLATILE;

935

-
 }

936 934 937 935


 /* Save the boot type */

938 936


 CmpBootType = SystemHive->Hive.BaseBlock->BootType;


 @@ -1508,7 +1506,7 @@ CmpInitializeHiveList(VOID)

1508 1506


 /* Make sure the list is set up */

1509 1507


 ASSERT(CmpMachineHiveList[i].Name != NULL);

1510 1508 1511

-
 /* Load the hive as volatile, if in LiveCD mode */

1509

+
 /* Load this root hive as volatile, if opened in shared mode */

1512 1510


 if (CmpShareSystemHives)

1513 1511


 CmpMachineHiveList[i].HHiveFlags |= HIVE_VOLATILE;

1514 1512


 @@ -1630,7 +1628,7 @@ CmInitSystem1(VOID)

1630 1628


 /* Check if this is PE-boot */

1631 1629


 if (InitIsWinPEMode)

1632 1630

1633

-
 /* Set registry to PE mode */

1631

+
 /* Set the registry in PE mode and load the system hives in shared mode */

1634 1632


 CmpMiniNTBoot = TRUE;

1635 1633


 CmpShareSystemHives = TRUE;

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Original file line number Diff line number Diff line change


 @@ -21,11 +21,7 @@ IoSetThreadHardErrorMode(

21 21


 _In_ BOOLEAN HardErrorEnabled);

22 22


 #endif

23 23 24

-
 /* GLOBALS *****************************************************************/

25 - 26

-
 #if !defined(CMLIB_HOST) && !defined(_BLDR_)

27

-
 extern BOOLEAN CmpMiniNTBoot;

28

-
 #endif

24

+
 /* GLOBALS ******************************************************************/

29 25 30 26


 /* PRIVATE FUNCTIONS ********************************************************/

31 27


 @@ -477,6 +473,13 @@ HvSyncHive(

477 473


 ASSERT(!RegistryHive->ReadOnly);

478 474


 ASSERT(RegistryHive->Signature == HV_HHIVE_SIGNATURE);

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+
 /* Avoid any write operations on volatile hives */

477

+
 if (RegistryHive->HiveFlags & HIVE_VOLATILE)

478

+
 {

479

+
 DPRINT("Hive 0x%p is volatile\n", RegistryHive);

480

+
 return TRUE;

481

+
 }

482 + 480 483

/*

481 484


  * Check if there's any dirty data in the vector.

482 485


  * A space with clean blocks would be pointless for


 @@ -490,26 +493,6 @@ HvSyncHive(

490 493


 return TRUE;

491 494

492 495 493

-
 /*

494

-
  * We are either in Live CD or we are sharing hives.

495

-
  * In either of the cases, hives can only be read

496

-
  * so don't do any writing operations on them.

497

-
  */

498

-
 #if !defined(CMLIB_HOST) && !defined(_BLDR_)

499

-
 if (CmpMiniNTBoot)

500

-
 {

501

-
 DPRINT("We are sharing hives or in Live CD mode, abort syncing\n");

502

-
 return TRUE;

503

-
 }

504

-
 #endif

505 - 506

-
 /* Avoid any writing operations on volatile hives */

507

-
 if (RegistryHive->HiveFlags & HIVE_VOLATILE)

508

-
 {

509

-
 DPRINT("The hive is volatile (hive 0x%p)\n", RegistryHive);

510

-
 return TRUE;

511

-
 }

512 - 513 496


 #if !defined(CMLIB_HOST) && !defined(_BLDR_)

514 497


 /* Disable hard errors before syncing the hive */

515 498


 HardErrors = IoSetThreadHardErrorMode(FALSE);

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