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https://github.com/reactos/reactos.git
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136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/*
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* PROJECT: registry manipulation library
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* LICENSE: GPL - See COPYING in the top level directory
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* COPYRIGHT: Copyright 2005 Filip Navara <navaraf@reactos.org>
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* Copyright 2001 - 2005 Eric Kohl
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*/
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#include "cmlib.h"
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#define NDEBUG
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#include <debug.h>
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ULONG CmlibTraceLevel = 0;
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BOOLEAN CMAPI
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CmCreateRootNode(
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PHHIVE Hive,
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PCWSTR Name)
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{
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PCM_KEY_NODE KeyCell;
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HCELL_INDEX RootCellIndex;
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ULONG NameSize;
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/* Allocate the cell */
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NameSize = (ULONG)strlenW(Name) * sizeof(WCHAR);
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RootCellIndex = HvAllocateCell(Hive,
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FIELD_OFFSET(CM_KEY_NODE, Name) + NameSize,
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Stable,
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HCELL_NIL);
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if (RootCellIndex == HCELL_NIL) return FALSE;
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/* Seutp the base block */
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Hive->BaseBlock->RootCell = RootCellIndex;
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Hive->BaseBlock->CheckSum = HvpHiveHeaderChecksum(Hive->BaseBlock);
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/* Get the key cell */
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KeyCell = (PCM_KEY_NODE)HvGetCell(Hive, RootCellIndex);
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if (!KeyCell) return FALSE;
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/* Setup the cell */
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KeyCell->Signature = (USHORT)CM_KEY_NODE_SIGNATURE;
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KeyCell->Flags = KEY_HIVE_ENTRY | KEY_NO_DELETE;
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KeyCell->LastWriteTime.QuadPart = 0;
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KeyCell->Parent = HCELL_NIL;
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KeyCell->SubKeyCounts[Stable] = 0;
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KeyCell->SubKeyCounts[Volatile] = 0;
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KeyCell->SubKeyLists[Stable] = HCELL_NIL;
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KeyCell->SubKeyLists[Volatile] = HCELL_NIL;
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KeyCell->ValueList.Count = 0;
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KeyCell->ValueList.List = HCELL_NIL;
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KeyCell->Security = HCELL_NIL;
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KeyCell->Class = HCELL_NIL;
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KeyCell->ClassLength = 0;
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KeyCell->MaxNameLen = 0;
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KeyCell->MaxClassLen = 0;
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KeyCell->MaxValueNameLen = 0;
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KeyCell->MaxValueDataLen = 0;
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/* Write the name */
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KeyCell->NameLength = (USHORT)NameSize;
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RtlCopyMemory(KeyCell->Name, Name, NameSize);
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/* Return success */
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HvReleaseCell(Hive, RootCellIndex);
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return TRUE;
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}
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static VOID CMAPI
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CmpPrepareKey(
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PHHIVE RegistryHive,
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PCM_KEY_NODE KeyCell);
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static VOID CMAPI
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CmpPrepareIndexOfKeys(
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PHHIVE RegistryHive,
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PCM_KEY_INDEX IndexCell)
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{
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ULONG i;
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if (IndexCell->Signature == CM_KEY_INDEX_ROOT ||
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IndexCell->Signature == CM_KEY_INDEX_LEAF)
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{
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for (i = 0; i < IndexCell->Count; i++)
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{
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PCM_KEY_INDEX SubIndexCell = HvGetCell(RegistryHive, IndexCell->List[i]);
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if (SubIndexCell->Signature == CM_KEY_NODE_SIGNATURE)
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CmpPrepareKey(RegistryHive, (PCM_KEY_NODE)SubIndexCell);
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else
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CmpPrepareIndexOfKeys(RegistryHive, SubIndexCell);
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}
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}
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else if (IndexCell->Signature == CM_KEY_FAST_LEAF ||
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IndexCell->Signature == CM_KEY_HASH_LEAF)
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{
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PCM_KEY_FAST_INDEX HashCell = (PCM_KEY_FAST_INDEX)IndexCell;
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for (i = 0; i < HashCell->Count; i++)
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{
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PCM_KEY_NODE SubKeyCell = HvGetCell(RegistryHive, HashCell->List[i].Cell);
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CmpPrepareKey(RegistryHive, SubKeyCell);
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}
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}
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else
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{
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DPRINT1("IndexCell->Signature %x\n", IndexCell->Signature);
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ASSERT(FALSE);
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}
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}
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static VOID CMAPI
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CmpPrepareKey(
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PHHIVE RegistryHive,
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PCM_KEY_NODE KeyCell)
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{
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PCM_KEY_INDEX IndexCell;
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ASSERT(KeyCell->Signature == CM_KEY_NODE_SIGNATURE);
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KeyCell->SubKeyLists[Volatile] = HCELL_NIL;
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KeyCell->SubKeyCounts[Volatile] = 0;
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/* Enumerate and add subkeys */
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if (KeyCell->SubKeyCounts[Stable] > 0)
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{
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IndexCell = HvGetCell(RegistryHive, KeyCell->SubKeyLists[Stable]);
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CmpPrepareIndexOfKeys(RegistryHive, IndexCell);
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}
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}
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VOID CMAPI
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CmPrepareHive(
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PHHIVE RegistryHive)
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{
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PCM_KEY_NODE RootCell;
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RootCell = HvGetCell(RegistryHive, RegistryHive->BaseBlock->RootCell);
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CmpPrepareKey(RegistryHive, RootCell);
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}
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