reactos/lib/cmlib/cminit.c

   1 /*
   2  * PROJECT:   registry manipulation library
   3  * LICENSE:   GPL - See COPYING in the top level directory
   4  * COPYRIGHT: Copyright 2005 Filip Navara <navaraf@reactos.org>
   5  *            Copyright 2001 - 2005 Eric Kohl
   6  */
   7
   8 #include "cmlib.h"
   9
  10 BOOLEAN CMAPI
  11 CmCreateRootNode(
  12    PHHIVE Hive,
  13    PCWSTR Name)
  14 {
  15    PCM_KEY_NODE KeyCell;
  16    HCELL_INDEX RootCellIndex;
  17    SIZE_T NameSize;
  18
  19    NameSize = wcslen(Name) * sizeof(WCHAR);
  20    RootCellIndex = HvAllocateCell(Hive, sizeof(CM_KEY_NODE) + NameSize, HvStable);
  21    if (RootCellIndex == HCELL_NULL)
  22       return FALSE;
  23
  24    Hive->HiveHeader->RootCell = RootCellIndex;
  25    Hive->HiveHeader->Checksum = HvpHiveHeaderChecksum(Hive->HiveHeader);
  26
  27    KeyCell = (PCM_KEY_NODE)HvGetCell(Hive, RootCellIndex);
  28    KeyCell->Id = REG_KEY_CELL_ID;
  29    KeyCell->Flags = REG_KEY_ROOT_CELL;
  30    KeyCell->LastWriteTime.QuadPart = 0;
  31    KeyCell->Parent = HCELL_NULL;
  32    KeyCell->SubKeyCounts[0] = 0;
  33    KeyCell->SubKeyCounts[1] = 0;
  34    KeyCell->SubKeyLists[0] = HCELL_NULL;
  35    KeyCell->SubKeyLists[1] = HCELL_NULL;
  36    KeyCell->ValueList.Count = 0;
  37    KeyCell->ValueList.List = HCELL_NULL;
  38    KeyCell->SecurityKeyOffset = HCELL_NULL;
  39    KeyCell->ClassNameOffset = HCELL_NULL;
  40    KeyCell->NameSize = (USHORT)NameSize;
  41    KeyCell->ClassSize = 0;
  42    memcpy(KeyCell->Name, Name, NameSize);
  43
  44    return TRUE;
  45 }
  46
  47 static VOID CMAPI
  48 CmpPrepareKey(
  49    PHHIVE RegistryHive,
  50    PCM_KEY_NODE KeyCell)
  51 {
  52    PCM_KEY_NODE SubKeyCell;
  53    PHASH_TABLE_CELL HashCell;
  54    ULONG i;
  55
  56    ASSERT(KeyCell->Id == REG_KEY_CELL_ID);
  57
  58    KeyCell->SubKeyLists[HvVolatile] = HCELL_NULL;
  59    KeyCell->SubKeyCounts[HvVolatile] = 0;
  60
  61    /* Enumerate and add subkeys */
  62    if (KeyCell->SubKeyCounts[HvStable] > 0)
  63    {
  64       HashCell = HvGetCell(RegistryHive, KeyCell->SubKeyLists[HvStable]);
  65
  66       for (i = 0; i < KeyCell->SubKeyCounts[HvStable]; i++)
  67       {
  68          SubKeyCell = HvGetCell(RegistryHive, HashCell->Table[i].KeyOffset);
  69          CmpPrepareKey(RegistryHive, SubKeyCell);
  70       }
  71    }
  72 }
  73
  74 VOID CMAPI
  75 CmPrepareHive(
  76    PHHIVE RegistryHive)
  77 {
  78    PCM_KEY_NODE RootCell;
  79
  80    RootCell = HvGetCell(RegistryHive, RegistryHive->HiveHeader->RootCell);
  81    CmpPrepareKey(RegistryHive, RootCell);
  82 }