mirror of
https://github.com/reactos/reactos.git
synced 2024-12-27 17:44:45 +00:00
Implemented NtSaveKey().
svn path=/trunk/; revision=4852
This commit is contained in:
Eric Kohl
parent
2730a5ab14
commit
b694b8942b
3 changed files with 561 additions and 35 deletions
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@ -616,4 +616,18 @@ CmiCompareKeyNamesI(PUNICODE_STRING KeyName,
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VOID
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CmiSyncHives(VOID);
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NTSTATUS
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CmiCreateTempHive(PREGISTRY_HIVE *RegistryHive);
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NTSTATUS
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CmiCopyKey (PREGISTRY_HIVE DstHive,
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PKEY_CELL DstKeyCell,
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PREGISTRY_HIVE SrcHive,
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PKEY_CELL SrcKeyCell);
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NTSTATUS
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CmiSaveTempHive (PREGISTRY_HIVE Hive,
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HANDLE FileHandle);
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#endif /*__INCLUDE_CM_H*/
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@ -1697,8 +1697,81 @@ NTSTATUS STDCALL
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NtSaveKey (IN HANDLE KeyHandle,
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IN HANDLE FileHandle)
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{
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UNIMPLEMENTED;
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return(STATUS_NOT_IMPLEMENTED);
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PREGISTRY_HIVE TempHive;
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PKEY_OBJECT KeyObject;
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NTSTATUS Status;
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DPRINT ("NtSaveKey() called\n");
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#if 0
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if (!SeSinglePrivilegeCheck (SeBackupPrivilege, KeGetPreviousMode ()))
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return STATUS_PRIVILEGE_NOT_HELD;
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#endif
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Status = ObReferenceObjectByHandle (KeyHandle,
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0,
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CmiKeyType,
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KeGetPreviousMode(),
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(PVOID *)&KeyObject,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1 ("ObReferenceObjectByHandle() failed (Status %lx)\n", Status);
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return Status;
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}
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/* Acquire hive lock exclucively */
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ExAcquireResourceExclusiveLite (&KeyObject->RegistryHive->HiveResource,
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TRUE);
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/* Refuse to save a volatile key */
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if (KeyObject->RegistryHive == CmiVolatileHive)
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{
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DPRINT1 ("Cannot save a volatile key\n");
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ExReleaseResourceLite (&KeyObject->RegistryHive->HiveResource);
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ObDereferenceObject (KeyObject);
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return STATUS_ACCESS_DENIED;
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}
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Status = CmiCreateTempHive(&TempHive);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1 ("CmiCreateTempHive() failed (Status %lx)\n", Status);
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ExReleaseResourceLite (&KeyObject->RegistryHive->HiveResource);
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ObDereferenceObject (KeyObject);
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return(Status);
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}
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Status = CmiCopyKey (TempHive,
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NULL,
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KeyObject->RegistryHive,
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KeyObject->KeyCell);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1 ("CmiCopyKey() failed (Status %lx)\n", Status);
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CmiRemoveRegistryHive (TempHive);
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ExReleaseResourceLite (&KeyObject->RegistryHive->HiveResource);
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ObDereferenceObject (KeyObject);
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return(Status);
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}
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Status = CmiSaveTempHive (TempHive,
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FileHandle);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1 ("CmiSaveTempHive() failed (Status %lx)\n", Status);
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}
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CmiRemoveRegistryHive (TempHive);
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/* Release hive lock */
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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ObDereferenceObject (KeyObject);
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DPRINT ("NtSaveKey() done\n");
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return STATUS_SUCCESS;
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}
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@ -1726,6 +1799,11 @@ NtUnloadKey (IN POBJECT_ATTRIBUTES KeyObjectAttributes)
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DPRINT ("NtUnloadKey() called\n");
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#if 0
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if (!SeSinglePrivilegeCheck (SeRestorePrivilege, KeGetPreviousMode ()))
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return STATUS_PRIVILEGE_NOT_HELD;
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#endif
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Status = CmiDisconnectHive (KeyObjectAttributes,
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&RegistryHive);
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if (!NT_SUCCESS (Status))
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@ -1746,35 +1824,10 @@ NtUnloadKey (IN POBJECT_ATTRIBUTES KeyObjectAttributes)
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CmiFlushRegistryHive (RegistryHive);
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#endif
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/* Remove hive from hive list */
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RemoveEntryList (&RegistryHive->HiveList);
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/* Release hive list lock */
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ExReleaseResourceLite (&CmiHiveListLock);
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/* Release file names */
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RtlFreeUnicodeString (&RegistryHive->HiveFileName);
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RtlFreeUnicodeString (&RegistryHive->LogFileName);
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/* Release hive bitmap */
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ExFreePool (RegistryHive->BitmapBuffer);
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/* Release free cell list */
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ExFreePool (RegistryHive->FreeList);
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ExFreePool (RegistryHive->FreeListOffset);
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/* Release hive resource */
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ExDeleteResource (&RegistryHive->HiveResource);
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/* Release bins and bin list */
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CmiFreeHiveBins (RegistryHive);
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ExFreePool (RegistryHive->BlockList);
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/* Release hive header */
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ExFreePool (RegistryHive->HiveHeader);
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/* Release hive */
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ExFreePool (RegistryHive);
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CmiRemoveRegistryHive (RegistryHive);
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DPRINT ("NtUnloadKey() done\n");
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@ -1112,6 +1112,128 @@ CmiCreateVolatileHive(PREGISTRY_HIVE *RegistryHive)
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}
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NTSTATUS
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CmiCreateTempHive(PREGISTRY_HIVE *RegistryHive)
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{
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PHBIN BinCell;
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PCELL_HEADER FreeCell;
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PREGISTRY_HIVE Hive;
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NTSTATUS Status;
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DPRINT1 ("CmiCreateTempHive() called\n");
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*RegistryHive = NULL;
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Hive = ExAllocatePool (NonPagedPool,
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sizeof(REGISTRY_HIVE));
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if (Hive == NULL)
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{
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DPRINT1 ("Failed to allocate registry hive block\n");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlZeroMemory (Hive,
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sizeof(REGISTRY_HIVE));
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DPRINT ("Hive %x\n", Hive);
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Hive->HiveHeader = (PHIVE_HEADER)ExAllocatePool (NonPagedPool,
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REG_BLOCK_SIZE);
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if (Hive->HiveHeader == NULL)
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{
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DPRINT1 ("Failed to allocate hive header block\n");
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ExFreePool (Hive);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlZeroMemory (Hive->HiveHeader,
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REG_BLOCK_SIZE);
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DPRINT1 ("HiveHeader %x\n", Hive->HiveHeader);
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Hive->Flags = HIVE_NO_FILE;
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RtlInitUnicodeString (&Hive->HiveFileName,
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NULL);
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RtlInitUnicodeString (&Hive->LogFileName,
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NULL);
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CmiCreateDefaultHiveHeader (Hive->HiveHeader);
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/* Allocate hive block list */
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Hive->BlockList = ExAllocatePool (NonPagedPool,
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sizeof(PHBIN *));
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if (Hive->BlockList == NULL)
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{
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DPRINT1 ("Failed to allocate hive block list\n");
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ExFreePool(Hive->HiveHeader);
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ExFreePool(Hive);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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/* Allocate first Bin */
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Hive->BlockList[0] = ExAllocatePool (NonPagedPool,
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REG_BLOCK_SIZE);
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if (Hive->BlockList[0] == NULL)
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{
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DPRINT1 ("Failed to allocate first bin\n");
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ExFreePool(Hive->BlockList);
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ExFreePool(Hive->HiveHeader);
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ExFreePool(Hive);
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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Hive->FileSize = 2* REG_BLOCK_SIZE;
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Hive->BlockListSize = 1;
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Hive->UpdateCounter = Hive->HiveHeader->UpdateCounter1;
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BinCell = (PHBIN)Hive->BlockList[0];
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FreeCell = (PCELL_HEADER)((ULONG_PTR)BinCell + REG_HBIN_DATA_OFFSET);
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CmiCreateDefaultBinCell (BinCell);
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/* First block */
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BinCell->BlockOffset = 0;
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/* Offset to root key block */
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Hive->HiveHeader->RootKeyCell = -1;
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/* The rest of the block is free */
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FreeCell->CellSize = REG_BLOCK_SIZE - REG_HBIN_DATA_OFFSET;
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/* Create the free cell list */
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Status = CmiCreateHiveFreeCellList (Hive);
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if (Hive->BlockList[0] == NULL)
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{
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DPRINT1 ("CmiCreateHiveFreeCellList() failed (Status %lx)\n", Status);
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ExFreePool(Hive->BlockList[0]);
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ExFreePool(Hive->BlockList);
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ExFreePool(Hive->HiveHeader);
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ExFreePool(Hive);
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return Status;
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}
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ExInitializeResourceLite (&Hive->HiveResource);
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/* Acquire hive list lock exclusively */
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ExAcquireResourceExclusiveLite (&CmiHiveListLock,
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TRUE);
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/* Add the new hive to the hive list */
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InsertTailList (&CmiHiveListHead,
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&Hive->HiveList);
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/* Release hive list lock */
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ExReleaseResourceLite (&CmiHiveListLock);
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VERIFY_REGISTRY_HIVE (Hive);
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*RegistryHive = Hive;
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return STATUS_SUCCESS;
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}
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NTSTATUS
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CmiLoadHive(IN POBJECT_ATTRIBUTES KeyObjectAttributes,
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IN PUNICODE_STRING FileName,
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@ -1187,27 +1309,44 @@ CmiLoadHive(IN POBJECT_ATTRIBUTES KeyObjectAttributes,
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NTSTATUS
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CmiRemoveRegistryHive(PREGISTRY_HIVE RegistryHive)
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{
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if (RegistryHive->Flags & HIVE_POINTER)
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return STATUS_UNSUCCESSFUL;
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/* Acquire hive list lock exclusively */
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ExAcquireResourceExclusiveLite(&CmiHiveListLock, TRUE);
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ExAcquireResourceExclusiveLite (&CmiHiveListLock,
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TRUE);
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/* Remove hive from hive list */
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RemoveEntryList(&RegistryHive->HiveList);
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RemoveEntryList (&RegistryHive->HiveList);
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/* Release hive list lock */
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ExReleaseResourceLite(&CmiHiveListLock);
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ExReleaseResourceLite (&CmiHiveListLock);
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/* Release file names */
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RtlFreeUnicodeString (&RegistryHive->HiveFileName);
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RtlFreeUnicodeString (&RegistryHive->LogFileName);
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/* FIXME: Remove attached keys and values */
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/* Release hive bitmap */
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ExFreePool (RegistryHive->BitmapBuffer);
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/* Release free cell list */
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ExFreePool (RegistryHive->FreeList);
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ExFreePool (RegistryHive->FreeListOffset);
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/* Release hive resource */
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ExDeleteResource (&RegistryHive->HiveResource);
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/* Release bins and bin list */
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CmiFreeHiveBins (RegistryHive);
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ExFreePool (RegistryHive->BlockList);
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/* Release hive header */
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ExFreePool(RegistryHive->HiveHeader);
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ExFreePool (RegistryHive->HiveHeader);
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/* Release hive */
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ExFreePool(RegistryHive);
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ExFreePool (RegistryHive);
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return(STATUS_SUCCESS);
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return STATUS_SUCCESS;
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}
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@ -3659,4 +3798,324 @@ CmiCompareKeyNamesI(PUNICODE_STRING KeyName,
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return TRUE;
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}
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NTSTATUS
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CmiCopyKey (PREGISTRY_HIVE DstHive,
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PKEY_CELL DstKeyCell,
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PREGISTRY_HIVE SrcHive,
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PKEY_CELL SrcKeyCell)
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{
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PKEY_CELL NewKeyCell;
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ULONG NewKeyCellSize;
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BLOCK_OFFSET NewKeyCellOffset;
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PHASH_TABLE_CELL NewHashTableCell;
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ULONG NewHashTableSize;
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BLOCK_OFFSET NewHashTableOffset;
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ULONG i;
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NTSTATUS Status;
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DPRINT1 ("CmiCopyKey() called\n");
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if (DstKeyCell == NULL)
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{
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/* Allocate and copy key cell */
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NewKeyCellSize = sizeof(KEY_CELL) + SrcKeyCell->NameSize;
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Status = CmiAllocateBlock (DstHive,
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(PVOID) &NewKeyCell,
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NewKeyCellSize,
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&NewKeyCellOffset);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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if (NewKeyCell == NULL)
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{
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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RtlCopyMemory (NewKeyCell,
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SrcKeyCell,
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NewKeyCellSize);
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DstHive->HiveHeader->RootKeyCell = NewKeyCellOffset;
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/* Copy class name */
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if (SrcKeyCell->ClassNameOffset != -1)
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{
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PDATA_CELL SrcClassNameCell;
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PDATA_CELL NewClassNameCell;
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BLOCK_OFFSET NewClassNameOffset;
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SrcClassNameCell = CmiGetBlock (SrcHive, SrcKeyCell->ClassNameOffset, NULL),
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NewKeyCell->ClassSize = SrcKeyCell->ClassSize;
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Status = CmiAllocateBlock (DstHive,
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(PVOID)&NewClassNameCell,
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NewKeyCell->ClassSize,
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&NewClassNameOffset);
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if (!NT_SUCCESS(Status))
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{
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CHECKPOINT1;
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return Status;
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}
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RtlCopyMemory (NewClassNameCell,
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SrcClassNameCell,
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NewKeyCell->ClassSize);
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NewKeyCell->ClassNameOffset = NewClassNameOffset;
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}
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}
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else
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{
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NewKeyCell = DstKeyCell;
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}
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/* Allocate hash table */
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if (SrcKeyCell->NumberOfSubKeys > 0)
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{
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NewHashTableSize = ROUND_UP(SrcKeyCell->NumberOfSubKeys + 1, 4) - 1;
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Status = CmiAllocateHashTableBlock (DstHive,
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&NewHashTableCell,
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&NewHashTableOffset,
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NewHashTableSize);
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if (!NT_SUCCESS(Status))
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{
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CHECKPOINT1;
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return Status;
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}
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NewKeyCell->HashTableOffset = NewHashTableOffset;
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}
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/* Allocate and copy value list and values */
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if (SrcKeyCell->NumberOfValues != 0)
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{
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PVALUE_LIST_CELL NewValueListCell;
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PVALUE_LIST_CELL SrcValueListCell;
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PVALUE_CELL NewValueCell;
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PVALUE_CELL SrcValueCell;
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PDATA_CELL SrcValueDataCell;
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PDATA_CELL NewValueDataCell;
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BLOCK_OFFSET ValueCellOffset;
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BLOCK_OFFSET ValueDataCellOffset;
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ULONG NewValueListCellSize;
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ULONG NewValueCellSize;
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NewValueListCellSize =
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ROUND_UP(SrcKeyCell->NumberOfValues, 4) * sizeof(BLOCK_OFFSET);
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Status = CmiAllocateBlock (DstHive,
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(PVOID)&NewValueListCell,
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NewValueListCellSize,
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&NewKeyCell->ValuesOffset);
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if (!NT_SUCCESS(Status))
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{
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CHECKPOINT1;
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return Status;
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}
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RtlZeroMemory (NewValueListCell,
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NewValueListCellSize);
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/* Copy values */
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SrcValueListCell = CmiGetBlock (SrcHive, SrcKeyCell->ValuesOffset, NULL);
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for (i = 0; i < SrcKeyCell->NumberOfValues; i++)
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{
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/* Copy value cell */
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SrcValueCell = CmiGetBlock (SrcHive, SrcValueListCell->Values[i], NULL);
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NewValueCellSize = sizeof(VALUE_CELL) + SrcValueCell->NameSize;
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Status = CmiAllocateBlock (DstHive,
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(PVOID*) &NewValueCell,
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NewValueCellSize,
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&ValueCellOffset);
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if (!NT_SUCCESS(Status))
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{
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CHECKPOINT1;
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return Status;
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}
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NewValueListCell->Values[i] = ValueCellOffset;
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RtlCopyMemory (NewValueCell,
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SrcValueCell,
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NewValueCellSize);
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/* Copy value data cell */
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if (SrcValueCell->DataSize > sizeof(PVOID))
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{
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SrcValueDataCell = CmiGetBlock (SrcHive, SrcValueCell->DataOffset, NULL);
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Status = CmiAllocateBlock (DstHive,
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(PVOID*) &NewValueDataCell,
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SrcValueCell->DataSize,
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&ValueDataCellOffset);
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if (!NT_SUCCESS(Status))
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{
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CHECKPOINT1;
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return Status;
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}
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RtlCopyMemory (NewValueDataCell,
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SrcValueDataCell,
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SrcValueCell->DataSize);
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NewValueCell->DataOffset = ValueDataCellOffset;
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}
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}
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}
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/* Copy subkeys */
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if (SrcKeyCell->NumberOfSubKeys > 0)
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{
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PHASH_TABLE_CELL SrcHashTableCell;
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PKEY_CELL SrcSubKeyCell;
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PKEY_CELL NewSubKeyCell;
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ULONG NewSubKeyCellSize;
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BLOCK_OFFSET NewSubKeyCellOffset;
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||||
PHASH_RECORD SrcHashRecord;
|
||||
|
||||
SrcHashTableCell = CmiGetBlock (SrcHive,
|
||||
SrcKeyCell->HashTableOffset,
|
||||
NULL);
|
||||
|
||||
for (i = 0; i < SrcKeyCell->NumberOfSubKeys; i++)
|
||||
{
|
||||
SrcHashRecord = &SrcHashTableCell->Table[i];
|
||||
SrcSubKeyCell = CmiGetBlock (SrcHive, SrcHashRecord->KeyOffset, NULL);
|
||||
|
||||
/* Allocate and copy key cell */
|
||||
NewSubKeyCellSize = sizeof(KEY_CELL) + SrcSubKeyCell->NameSize;
|
||||
Status = CmiAllocateBlock (DstHive,
|
||||
(PVOID)&NewSubKeyCell,
|
||||
NewSubKeyCellSize,
|
||||
&NewSubKeyCellOffset);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
CHECKPOINT1;
|
||||
return Status;
|
||||
}
|
||||
if (NewKeyCell == NULL)
|
||||
{
|
||||
CHECKPOINT1;
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
|
||||
NewHashTableCell->Table[i].KeyOffset = NewSubKeyCellOffset;
|
||||
NewHashTableCell->Table[i].HashValue = SrcHashRecord->HashValue;
|
||||
|
||||
RtlCopyMemory (NewSubKeyCell,
|
||||
SrcSubKeyCell,
|
||||
NewSubKeyCellSize);
|
||||
|
||||
/* Copy class name */
|
||||
if (SrcSubKeyCell->ClassNameOffset != -1)
|
||||
{
|
||||
PDATA_CELL SrcClassNameCell;
|
||||
PDATA_CELL NewClassNameCell;
|
||||
BLOCK_OFFSET NewClassNameOffset;
|
||||
|
||||
SrcClassNameCell = CmiGetBlock (SrcHive,
|
||||
SrcSubKeyCell->ClassNameOffset,
|
||||
NULL),
|
||||
|
||||
NewSubKeyCell->ClassSize = SrcSubKeyCell->ClassSize;
|
||||
Status = CmiAllocateBlock (DstHive,
|
||||
(PVOID)&NewClassNameCell,
|
||||
NewSubKeyCell->ClassSize,
|
||||
&NewClassNameOffset);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
CHECKPOINT1;
|
||||
return Status;
|
||||
}
|
||||
|
||||
NewSubKeyCell->ClassNameOffset = NewClassNameOffset;
|
||||
RtlCopyMemory (NewClassNameCell,
|
||||
SrcClassNameCell,
|
||||
NewSubKeyCell->ClassSize);
|
||||
}
|
||||
|
||||
/* Copy subkey data and subkeys */
|
||||
Status = CmiCopyKey (DstHive,
|
||||
NewSubKeyCell,
|
||||
SrcHive,
|
||||
SrcSubKeyCell);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
CHECKPOINT1;
|
||||
return Status;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
NTSTATUS
|
||||
CmiSaveTempHive (PREGISTRY_HIVE Hive,
|
||||
HANDLE FileHandle)
|
||||
{
|
||||
IO_STATUS_BLOCK IoStatusBlock;
|
||||
LARGE_INTEGER FileOffset;
|
||||
ULONG BlockIndex;
|
||||
PVOID BlockPtr;
|
||||
NTSTATUS Status;
|
||||
|
||||
DPRINT ("CmiSaveTempHive() called\n");
|
||||
|
||||
Hive->HiveHeader->Checksum = CmiCalcChecksum ((PULONG)Hive->HiveHeader);
|
||||
|
||||
/* Write hive block */
|
||||
FileOffset.QuadPart = 0ULL;
|
||||
Status = NtWriteFile (FileHandle,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
&IoStatusBlock,
|
||||
Hive->HiveHeader,
|
||||
sizeof(HIVE_HEADER),
|
||||
&FileOffset,
|
||||
NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1 ("NtWriteFile() failed (Status %lx)\n", Status);
|
||||
return Status;
|
||||
}
|
||||
|
||||
DPRINT ("Saving %lu blocks\n", Hive->BlockListSize);
|
||||
for (BlockIndex = 0; BlockIndex < Hive->BlockListSize; BlockIndex++)
|
||||
{
|
||||
BlockPtr = Hive->BlockList[BlockIndex];
|
||||
DPRINT ("BlockPtr %p\n", BlockPtr);
|
||||
|
||||
FileOffset.QuadPart = (ULONGLONG)(BlockIndex + 1) * 4096ULL;
|
||||
DPRINT ("File offset %I64x\n", FileOffset.QuadPart);
|
||||
|
||||
/* Write hive block */
|
||||
Status = NtWriteFile (FileHandle,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
&IoStatusBlock,
|
||||
BlockPtr,
|
||||
REG_BLOCK_SIZE,
|
||||
&FileOffset,
|
||||
NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1 ("NtWriteFile() failed (Status %lx)\n", Status);
|
||||
return Status;
|
||||
}
|
||||
}
|
||||
|
||||
Status = NtFlushBuffersFile (FileHandle,
|
||||
&IoStatusBlock);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1 ("NtFlushBuffersFile() failed (Status %lx)\n", Status);
|
||||
}
|
||||
|
||||
DPRINT ("CmiSaveTempHive() done\n");
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/* EOF */
|
||||
|
|
|
|||
Loading…
Reference in a new issue