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Use a list to store linked hives.
Enable enumeration of linked hive root keys. Patch partially written by Filip Navara. svn path=/trunk/; revision=7510
This commit is contained in:
Eric Kohl
parent
f35801a5a9
commit
0dd0b373bc
5 changed files with 307 additions and 158 deletions
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@ -199,7 +199,13 @@ typedef struct _KEY_CELL
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/*
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* Hash record
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*
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* HashValue :
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* KeyOffset:
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* The least significant bit is used to distinguish
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* between real key offsets and pointers to registry hives:
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* 0 : offset
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* 1 : pointer to registry hive
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*
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* HashValue:
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* packed name: four letters of value's name
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* otherwise: Zero!
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*/
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@ -297,6 +303,18 @@ typedef struct _REGISTRY_HIVE
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#define IsUsedCell(Cell)(Cell->CellSize < 0)
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typedef struct _HIVE_LINK
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{
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LIST_ENTRY Entry;
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PREGISTRY_HIVE ParentKeyRegistryHive;
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BLOCK_OFFSET ParentKeyCellOffset;
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PREGISTRY_HIVE SubKeyRegistryHive;
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BLOCK_OFFSET SubKeyCellOffset;
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} HIVE_LINK, *PHIVE_LINK;
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/* KEY_OBJECT.Flags */
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/* When set, the key is scheduled for deletion, and all
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@ -352,6 +370,7 @@ extern PREGISTRY_HIVE CmiVolatileHive;
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extern POBJECT_TYPE CmiKeyType;
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extern KSPIN_LOCK CmiKeyListLock;
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extern LIST_ENTRY CmiHiveLinkListHead;
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extern LIST_ENTRY CmiHiveListHead;
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extern ERESOURCE CmiHiveListLock;
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@ -472,12 +491,13 @@ CmiGetMaxValueDataLength(IN PREGISTRY_HIVE RegistryHive,
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IN PKEY_CELL KeyCell);
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NTSTATUS
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CmiScanForSubKey(IN PREGISTRY_HIVE RegistryHive,
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IN PKEY_CELL KeyCell,
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OUT PKEY_CELL *SubKeyCell,
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OUT BLOCK_OFFSET *BlockOffset,
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CmiScanForSubKey(IN PREGISTRY_HIVE ParentKeyRegistryHive,
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IN PKEY_CELL ParentKeyCell,
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OUT PREGISTRY_HIVE *SubKeyRegistryHive,
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OUT PKEY_CELL *SubKeyCell,
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OUT BLOCK_OFFSET *SubKeyCellOffset,
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IN PUNICODE_STRING KeyName,
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IN ACCESS_MASK DesiredAccess,
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IN ACCESS_MASK DesiredAccess,
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IN ULONG Attributes);
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NTSTATUS
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@ -521,22 +541,23 @@ CmiDeleteValueFromKey(IN PREGISTRY_HIVE RegistryHive,
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IN PUNICODE_STRING ValueName);
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NTSTATUS
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CmiAllocateHashTableCell(IN PREGISTRY_HIVE RegistryHive,
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OUT PHASH_TABLE_CELL *HashBlock,
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OUT BLOCK_OFFSET *HBOffset,
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IN ULONG HashTableSize);
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CmiAllocateHashTableCell(IN PREGISTRY_HIVE RegistryHive,
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OUT PHASH_TABLE_CELL *HashCell,
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OUT BLOCK_OFFSET *HBOffset,
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IN ULONG HashTableSize);
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PKEY_CELL
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CmiGetKeyFromHashByIndex(PREGISTRY_HIVE RegistryHive,
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PHASH_TABLE_CELL HashBlock,
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ULONG Index);
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PHASH_TABLE_CELL HashCell,
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ULONG Index);
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NTSTATUS
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CmiAddKeyToHashTable(PREGISTRY_HIVE RegistryHive,
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PHASH_TABLE_CELL HashCell,
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BLOCK_OFFSET HashCellOffset,
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PKEY_CELL NewKeyCell,
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BLOCK_OFFSET NKBOffset);
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PKEY_CELL ParentKeyCell,
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BLOCK_OFFSET ParentKeyCellOffset,
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PREGISTRY_HIVE NewKeyRegistryHive,
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PKEY_CELL NewKeyCell,
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BLOCK_OFFSET NewKeyCellOffset);
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NTSTATUS
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CmiRemoveKeyFromHashTable(PREGISTRY_HIVE RegistryHive,
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@ -275,7 +275,7 @@ NtEnumerateKey(IN HANDLE KeyHandle,
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PKEY_OBJECT KeyObject;
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PREGISTRY_HIVE RegistryHive;
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PKEY_CELL KeyCell, SubKeyCell;
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PHASH_TABLE_CELL HashTableBlock;
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PHASH_TABLE_CELL HashTableCell;
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PKEY_BASIC_INFORMATION BasicInformation;
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PKEY_NODE_INFORMATION NodeInformation;
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PKEY_FULL_INFORMATION FullInformation;
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@ -317,38 +317,17 @@ NtEnumerateKey(IN HANDLE KeyHandle,
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/* Get pointer to SubKey */
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if (Index >= KeyCell->NumberOfSubKeys)
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{
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if (RegistryHive == CmiVolatileHive)
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if (Index >= KeyObject->NumberOfSubKeys)
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{
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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KeLeaveCriticalRegion();
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KeLeaveCriticalRegion();
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ObDereferenceObject(KeyObject);
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DPRINT("No more volatile entries\n");
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return(STATUS_NO_MORE_ENTRIES);
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}
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else
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{
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ULONG i;
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PKEY_OBJECT CurKey = NULL;
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/* Search volatile keys */
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for (i = 0; i < KeyObject->NumberOfSubKeys; i++)
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{
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CurKey = KeyObject->SubKeys[i];
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if (CurKey->RegistryHive == CmiVolatileHive)
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{
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if (Index-- == KeyCell->NumberOfSubKeys)
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break;
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}
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}
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if (Index >= KeyCell->NumberOfSubKeys)
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{
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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KeLeaveCriticalRegion();
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ObDereferenceObject(KeyObject);
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DPRINT("No more non-volatile entries\n");
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return(STATUS_NO_MORE_ENTRIES);
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}
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SubKeyCell = CurKey->KeyCell;
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SubKeyCell = KeyObject->SubKeys[Index]->KeyCell;
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}
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}
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else
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@ -356,25 +335,27 @@ NtEnumerateKey(IN HANDLE KeyHandle,
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if (KeyCell->HashTableOffset == (BLOCK_OFFSET)-1)
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{
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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KeLeaveCriticalRegion();
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KeLeaveCriticalRegion();
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ObDereferenceObject(KeyObject);
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return(STATUS_NO_MORE_ENTRIES);
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}
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HashTableBlock = CmiGetCell (RegistryHive, KeyCell->HashTableOffset, NULL);
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if (HashTableBlock == NULL)
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HashTableCell = CmiGetCell (RegistryHive, KeyCell->HashTableOffset, NULL);
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if (HashTableCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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KeLeaveCriticalRegion();
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KeLeaveCriticalRegion();
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ObDereferenceObject(KeyObject);
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return STATUS_UNSUCCESSFUL;
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}
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SubKeyCell = CmiGetKeyFromHashByIndex(RegistryHive,
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HashTableBlock,
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HashTableCell,
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Index);
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}
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DPRINT("SubKeyCell %p\n", SubKeyCell);
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if (SubKeyCell == NULL)
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{
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ExReleaseResourceLite(&KeyObject->RegistryHive->HiveResource);
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@ -2262,19 +2262,21 @@ CmiGetMaxValueDataLength(PREGISTRY_HIVE RegistryHive,
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NTSTATUS
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CmiScanForSubKey(IN PREGISTRY_HIVE RegistryHive,
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IN PKEY_CELL KeyCell,
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CmiScanForSubKey(IN PREGISTRY_HIVE ParentKeyRegistryHive,
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IN PKEY_CELL ParentKeyCell,
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OUT PREGISTRY_HIVE *SubKeyRegistryHive,
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OUT PKEY_CELL *SubKeyCell,
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OUT BLOCK_OFFSET *BlockOffset,
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OUT BLOCK_OFFSET *SubKeyCellOffset,
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IN PUNICODE_STRING KeyName,
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IN ACCESS_MASK DesiredAccess,
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IN ULONG Attributes)
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{
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PHASH_TABLE_CELL HashBlock;
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PHASH_TABLE_CELL HashCell;
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PKEY_CELL CurSubKeyCell;
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PHIVE_LINK HiveLink;
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ULONG i;
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VERIFY_KEY_CELL(KeyCell);
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VERIFY_KEY_CELL(ParentKeyCell);
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DPRINT("Scanning for sub key %wZ\n", KeyName);
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@ -2283,66 +2285,116 @@ CmiScanForSubKey(IN PREGISTRY_HIVE RegistryHive,
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*SubKeyCell = NULL;
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/* The key does not have any subkeys */
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if (KeyCell->HashTableOffset == (BLOCK_OFFSET)-1)
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if (ParentKeyCell->HashTableOffset == (BLOCK_OFFSET)-1)
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{
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return STATUS_SUCCESS;
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}
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/* Get hash table */
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HashBlock = CmiGetCell (RegistryHive, KeyCell->HashTableOffset, NULL);
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if (HashBlock == NULL)
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HashCell = CmiGetCell (ParentKeyRegistryHive, ParentKeyCell->HashTableOffset, NULL);
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if (HashCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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for (i = 0; (i < KeyCell->NumberOfSubKeys) && (i < HashBlock->HashTableSize); i++)
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for (i = 0; (i < ParentKeyCell->NumberOfSubKeys) && (i < HashCell->HashTableSize); i++)
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{
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if (Attributes & OBJ_CASE_INSENSITIVE)
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{
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if (HashBlock->Table[i].KeyOffset != 0 &&
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HashBlock->Table[i].KeyOffset != (ULONG_PTR)-1 &&
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(HashBlock->Table[i].HashValue == 0 ||
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CmiCompareHashI(KeyName, (PCHAR)&HashBlock->Table[i].HashValue)))
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if (HashCell->Table[i].KeyOffset != 0 &&
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HashCell->Table[i].KeyOffset != (ULONG_PTR)-1 &&
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(HashCell->Table[i].HashValue == 0 ||
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CmiCompareHashI(KeyName, (PCHAR)&HashCell->Table[i].HashValue)))
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{
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CurSubKeyCell = CmiGetCell (RegistryHive,
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HashBlock->Table[i].KeyOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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if (HashCell->Table[i].KeyOffset & 1)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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HiveLink = (PHIVE_LINK)(HashCell->Table[i].KeyOffset & ~1);
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if (CmiCompareKeyNamesI(KeyName, CurSubKeyCell))
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CurSubKeyCell = CmiGetCell (HiveLink->SubKeyRegistryHive,
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HiveLink->SubKeyCellOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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if (CmiCompareKeyNamesI(KeyName, CurSubKeyCell))
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{
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*SubKeyRegistryHive = HiveLink->SubKeyRegistryHive;
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*SubKeyCell = CurSubKeyCell;
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*SubKeyCellOffset = HiveLink->SubKeyCellOffset;
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break;
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}
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}
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else
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{
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*SubKeyCell = CurSubKeyCell;
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*BlockOffset = HashBlock->Table[i].KeyOffset;
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break;
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CurSubKeyCell = CmiGetCell (ParentKeyRegistryHive,
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HashCell->Table[i].KeyOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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if (CmiCompareKeyNamesI(KeyName, CurSubKeyCell))
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{
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*SubKeyRegistryHive = ParentKeyRegistryHive;
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*SubKeyCell = CurSubKeyCell;
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*SubKeyCellOffset = HashCell->Table[i].KeyOffset;
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break;
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}
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}
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}
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}
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else
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{
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if (HashBlock->Table[i].KeyOffset != 0 &&
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HashBlock->Table[i].KeyOffset != (ULONG_PTR) -1 &&
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(HashBlock->Table[i].HashValue == 0 ||
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CmiCompareHash(KeyName, (PCHAR)&HashBlock->Table[i].HashValue)))
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if (HashCell->Table[i].KeyOffset != 0 &&
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HashCell->Table[i].KeyOffset != (ULONG_PTR) -1 &&
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(HashCell->Table[i].HashValue == 0 ||
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CmiCompareHash(KeyName, (PCHAR)&HashCell->Table[i].HashValue)))
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{
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CurSubKeyCell = CmiGetCell (RegistryHive,
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HashBlock->Table[i].KeyOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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if (HashCell->Table[i].KeyOffset & 1)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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HiveLink = (PHIVE_LINK)(HashCell->Table[i].KeyOffset & ~1);
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if (CmiCompareKeyNames(KeyName, CurSubKeyCell))
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CurSubKeyCell = CmiGetCell (HiveLink->SubKeyRegistryHive,
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HiveLink->SubKeyCellOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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if (CmiCompareKeyNames(KeyName, CurSubKeyCell))
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{
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*SubKeyRegistryHive = HiveLink->SubKeyRegistryHive;
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*SubKeyCell = CurSubKeyCell;
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*SubKeyCellOffset = HiveLink->SubKeyCellOffset;
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break;
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}
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}
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else
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{
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*SubKeyCell = CurSubKeyCell;
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*BlockOffset = HashBlock->Table[i].KeyOffset;
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break;
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CurSubKeyCell = CmiGetCell (ParentKeyRegistryHive,
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HashCell->Table[i].KeyOffset,
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NULL);
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if (CurSubKeyCell == NULL)
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{
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DPRINT("CmiGetBlock() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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if (CmiCompareKeyNames(KeyName, CurSubKeyCell))
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{
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*SubKeyRegistryHive = ParentKeyRegistryHive;
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*SubKeyCell = CurSubKeyCell;
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*SubKeyCellOffset = HashCell->Table[i].KeyOffset;
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break;
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}
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}
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}
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}
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@ -2361,7 +2413,6 @@ CmiAddSubKey(PREGISTRY_HIVE RegistryHive,
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PUNICODE_STRING Class,
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ULONG CreateOptions)
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{
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PHASH_TABLE_CELL HashBlock;
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BLOCK_OFFSET NKBOffset;
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PKEY_CELL NewKeyCell;
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ULONG NewBlockSize;
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@ -2478,69 +2529,19 @@ CmiAddSubKey(PREGISTRY_HIVE RegistryHive,
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return(Status);
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}
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if (ParentKeyCell->HashTableOffset == (ULONG_PTR) -1)
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{
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Status = CmiAllocateHashTableCell (RegistryHive,
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&HashBlock,
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&ParentKeyCell->HashTableOffset,
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REG_INIT_HASH_TABLE_SIZE);
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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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}
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else
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{
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HashBlock = CmiGetCell (RegistryHive,
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ParentKeyCell->HashTableOffset,
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NULL);
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if (HashBlock == NULL)
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{
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DPRINT("CmiGetCell() failed\n");
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return STATUS_UNSUCCESSFUL;
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}
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if (((ParentKeyCell->NumberOfSubKeys + 1) >= HashBlock->HashTableSize))
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{
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PHASH_TABLE_CELL NewHashBlock;
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BLOCK_OFFSET HTOffset;
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/* Reallocate the hash table cell */
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Status = CmiAllocateHashTableCell (RegistryHive,
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&NewHashBlock,
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&HTOffset,
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HashBlock->HashTableSize +
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REG_EXTEND_HASH_TABLE_SIZE);
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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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RtlZeroMemory(&NewHashBlock->Table[0],
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sizeof(NewHashBlock->Table[0]) * NewHashBlock->HashTableSize);
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RtlCopyMemory(&NewHashBlock->Table[0],
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&HashBlock->Table[0],
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sizeof(NewHashBlock->Table[0]) * HashBlock->HashTableSize);
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CmiDestroyCell (RegistryHive,
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HashBlock,
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ParentKeyCell->HashTableOffset);
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ParentKeyCell->HashTableOffset = HTOffset;
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HashBlock = NewHashBlock;
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}
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}
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Status = CmiAddKeyToHashTable(RegistryHive,
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HashBlock,
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ParentKeyCell->HashTableOffset,
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Status = CmiAddKeyToHashTable(ParentKey->RegistryHive,
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ParentKeyCell,
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ParentKey->KeyCellOffset,
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NULL,
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NewKeyCell,
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NKBOffset);
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if (NT_SUCCESS(Status))
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if (!NT_SUCCESS(Status))
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{
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ParentKeyCell->NumberOfSubKeys++;
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return Status;
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}
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NtQuerySystemTime (&ParentKeyCell->LastWriteTime);
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CmiMarkBlockDirty (RegistryHive, ParentKey->KeyCellOffset);
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CmiMarkBlockDirty (ParentKey->RegistryHive, ParentKey->KeyCellOffset);
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return(Status);
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}
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@ -3005,22 +3006,30 @@ CmiAllocateHashTableCell (IN PREGISTRY_HIVE RegistryHive,
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PKEY_CELL
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CmiGetKeyFromHashByIndex(PREGISTRY_HIVE RegistryHive,
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PHASH_TABLE_CELL HashBlock,
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PHASH_TABLE_CELL HashCell,
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ULONG Index)
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{
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BLOCK_OFFSET KeyOffset;
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PHIVE_LINK HiveLink;
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PKEY_CELL KeyCell;
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if (HashBlock == NULL)
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if (HashCell == NULL)
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return NULL;
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if (IsPointerHive(RegistryHive))
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if (HashCell->Table[Index].KeyOffset & 1)
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{
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KeyCell = (PKEY_CELL) HashBlock->Table[Index].KeyOffset;
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HiveLink = (PHIVE_LINK)(HashCell->Table[Index].KeyOffset & ~1);
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KeyCell = CmiGetCell (HiveLink->SubKeyRegistryHive,
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HiveLink->SubKeyCellOffset,
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NULL);
|
||||
}
|
||||
else if (IsPointerHive(RegistryHive))
|
||||
{
|
||||
KeyCell = (PKEY_CELL) HashCell->Table[Index].KeyOffset;
|
||||
}
|
||||
else
|
||||
{
|
||||
KeyOffset = HashBlock->Table[Index].KeyOffset;
|
||||
KeyOffset = HashCell->Table[Index].KeyOffset;
|
||||
KeyCell = CmiGetCell (RegistryHive, KeyOffset, NULL);
|
||||
}
|
||||
|
||||
|
|
@ -3030,18 +3039,94 @@ CmiGetKeyFromHashByIndex(PREGISTRY_HIVE RegistryHive,
|
|||
|
||||
NTSTATUS
|
||||
CmiAddKeyToHashTable(PREGISTRY_HIVE RegistryHive,
|
||||
PHASH_TABLE_CELL HashCell,
|
||||
BLOCK_OFFSET HashCellOffset,
|
||||
PKEY_CELL ParentKeyCell,
|
||||
BLOCK_OFFSET ParentKeyCellOffset,
|
||||
PREGISTRY_HIVE NewKeyRegistryHive,
|
||||
PKEY_CELL NewKeyCell,
|
||||
BLOCK_OFFSET NKBOffset)
|
||||
BLOCK_OFFSET NewKeyCellOffset)
|
||||
{
|
||||
BLOCK_OFFSET HashCellOffset;
|
||||
PHASH_TABLE_CELL HashCell;
|
||||
ULONG i;
|
||||
NTSTATUS Status;
|
||||
|
||||
if (ParentKeyCell->HashTableOffset == (ULONG_PTR) -1)
|
||||
{
|
||||
Status = CmiAllocateHashTableCell (RegistryHive,
|
||||
&HashCell,
|
||||
&ParentKeyCell->HashTableOffset,
|
||||
REG_INIT_HASH_TABLE_SIZE);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return(Status);
|
||||
}
|
||||
CmiMarkBlockDirty(RegistryHive, ParentKeyCellOffset);
|
||||
}
|
||||
else
|
||||
{
|
||||
HashCell = CmiGetCell (RegistryHive,
|
||||
ParentKeyCell->HashTableOffset,
|
||||
NULL);
|
||||
if (HashCell == NULL)
|
||||
{
|
||||
DPRINT("CmiGetCell() failed\n");
|
||||
return STATUS_UNSUCCESSFUL;
|
||||
}
|
||||
|
||||
if (((ParentKeyCell->NumberOfSubKeys + 1) >= HashCell->HashTableSize))
|
||||
{
|
||||
PHASH_TABLE_CELL NewHashCell;
|
||||
BLOCK_OFFSET NewHashCellOffset;
|
||||
|
||||
/* Reallocate the hash table cell */
|
||||
Status = CmiAllocateHashTableCell (RegistryHive,
|
||||
&NewHashCell,
|
||||
&NewHashCellOffset,
|
||||
HashCell->HashTableSize +
|
||||
REG_EXTEND_HASH_TABLE_SIZE);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return Status;
|
||||
}
|
||||
|
||||
RtlZeroMemory(&NewHashCell->Table[0],
|
||||
sizeof(NewHashCell->Table[0]) * NewHashCell->HashTableSize);
|
||||
RtlCopyMemory(&NewHashCell->Table[0],
|
||||
&HashCell->Table[0],
|
||||
sizeof(NewHashCell->Table[0]) * HashCell->HashTableSize);
|
||||
CmiDestroyCell (RegistryHive,
|
||||
HashCell,
|
||||
ParentKeyCell->HashTableOffset);
|
||||
ParentKeyCell->HashTableOffset = NewHashCellOffset;
|
||||
HashCell = NewHashCell;
|
||||
CmiMarkBlockDirty(RegistryHive, ParentKeyCellOffset);
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0; i < HashCell->HashTableSize; i++)
|
||||
{
|
||||
if (HashCell->Table[i].KeyOffset == 0)
|
||||
{
|
||||
HashCell->Table[i].KeyOffset = NKBOffset;
|
||||
if (NewKeyRegistryHive != NULL && NewKeyRegistryHive != RegistryHive)
|
||||
{
|
||||
PHIVE_LINK HiveLink;
|
||||
|
||||
HiveLink = ExAllocatePool (NonPagedPool, sizeof(HIVE_LINK));
|
||||
if (HiveLink == NULL)
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
|
||||
InsertTailList (&CmiHiveLinkListHead, &HiveLink->Entry);
|
||||
HiveLink->ParentKeyRegistryHive = RegistryHive;
|
||||
HiveLink->ParentKeyCellOffset = ParentKeyCellOffset;
|
||||
HiveLink->SubKeyRegistryHive = NewKeyRegistryHive;
|
||||
HiveLink->SubKeyCellOffset = NewKeyCellOffset;
|
||||
|
||||
HashCell->Table[i].KeyOffset = (BLOCK_OFFSET)((ULONG)HiveLink | 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
HashCell->Table[i].KeyOffset = NewKeyCellOffset;
|
||||
}
|
||||
HashCell->Table[i].HashValue = 0;
|
||||
if (NewKeyCell->Flags & REG_KEY_NAME_PACKED)
|
||||
{
|
||||
|
|
@ -3050,6 +3135,8 @@ CmiAddKeyToHashTable(PREGISTRY_HIVE RegistryHive,
|
|||
min(NewKeyCell->NameSize, sizeof(ULONG)));
|
||||
}
|
||||
CmiMarkBlockDirty(RegistryHive, HashCellOffset);
|
||||
ParentKeyCell->NumberOfSubKeys++;
|
||||
CmiMarkBlockDirty(RegistryHive, ParentKeyCellOffset);
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $Id: registry.c,v 1.116 2003/12/30 18:52:03 fireball Exp $
|
||||
/* $Id: registry.c,v 1.117 2004/01/08 15:02:45 ekohl Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
|
|
@ -31,6 +31,7 @@ POBJECT_TYPE CmiKeyType = NULL;
|
|||
PREGISTRY_HIVE CmiVolatileHive = NULL;
|
||||
KSPIN_LOCK CmiKeyListLock;
|
||||
|
||||
LIST_ENTRY CmiHiveLinkListHead;
|
||||
LIST_ENTRY CmiHiveListHead;
|
||||
ERESOURCE CmiHiveListLock;
|
||||
|
||||
|
|
@ -281,6 +282,9 @@ CmInitializeRegistry(VOID)
|
|||
|
||||
ObpCreateTypeObject (CmiKeyType);
|
||||
|
||||
/* Initialize the hive link list */
|
||||
InitializeListHead(&CmiHiveLinkListHead);
|
||||
|
||||
/* Initialize the hive list */
|
||||
InitializeListHead(&CmiHiveListHead);
|
||||
ExInitializeResourceLite(&CmiHiveListLock);
|
||||
|
|
@ -596,12 +600,30 @@ CmiConnectHive(IN POBJECT_ATTRIBUTES KeyObjectAttributes,
|
|||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
|
||||
Status = CmiAddKeyToHashTable(ParentKey->RegistryHive,
|
||||
ParentKey->KeyCell,
|
||||
ParentKey->KeyCellOffset,
|
||||
NewKey->RegistryHive,
|
||||
NewKey->KeyCell,
|
||||
NewKey->KeyCellOffset);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
DPRINT1("CmiAddKeyToHashTable() failed (Status %lx)\n", Status);
|
||||
if (NewKey->SubKeys != NULL)
|
||||
{
|
||||
ExFreePool (NewKey->SubKeys);
|
||||
}
|
||||
ObDereferenceObject (NewKey);
|
||||
ObDereferenceObject (ParentKey);
|
||||
return Status;
|
||||
}
|
||||
|
||||
CmiAddKeyToList (ParentKey, NewKey);
|
||||
ObDereferenceObject (ParentKey);
|
||||
|
||||
VERIFY_KEY_OBJECT(NewKey);
|
||||
|
||||
/* Note: Do not dereference NewKey here! */
|
||||
ObDereferenceObject (NewKey);
|
||||
ObDereferenceObject (ParentKey);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
|
@ -614,6 +636,10 @@ CmiDisconnectHive (IN POBJECT_ATTRIBUTES KeyObjectAttributes,
|
|||
PKEY_OBJECT KeyObject;
|
||||
PREGISTRY_HIVE Hive;
|
||||
HANDLE KeyHandle;
|
||||
PLIST_ENTRY Entry;
|
||||
PHIVE_LINK HiveLink;
|
||||
PKEY_CELL ParentKeyCell;
|
||||
PHASH_TABLE_CELL HashCell;
|
||||
NTSTATUS Status;
|
||||
|
||||
DPRINT("CmiDisconnectHive() called\n");
|
||||
|
|
@ -663,10 +689,42 @@ CmiDisconnectHive (IN POBJECT_ATTRIBUTES KeyObjectAttributes,
|
|||
}
|
||||
|
||||
Hive = KeyObject->RegistryHive;
|
||||
|
||||
CmiRemoveKeyFromList (KeyObject);
|
||||
|
||||
/* Dereference KeyObject twice to delete it */
|
||||
ObDereferenceObject (KeyObject);
|
||||
/* Remove hive link and hash table entry */
|
||||
Entry = CmiHiveLinkListHead.Flink;
|
||||
while (Entry != &CmiHiveLinkListHead)
|
||||
{
|
||||
HiveLink = CONTAINING_RECORD(Entry, HIVE_LINK, Entry);
|
||||
if (HiveLink->SubKeyRegistryHive == Hive &&
|
||||
HiveLink->SubKeyCellOffset == KeyObject->KeyCellOffset)
|
||||
{
|
||||
ParentKeyCell = CmiGetCell (HiveLink->ParentKeyRegistryHive,
|
||||
HiveLink->ParentKeyCellOffset,
|
||||
NULL);
|
||||
if (ParentKeyCell != NULL)
|
||||
{
|
||||
HashCell = CmiGetCell (HiveLink->ParentKeyRegistryHive,
|
||||
ParentKeyCell->HashTableOffset,
|
||||
NULL);
|
||||
if (HashCell != NULL)
|
||||
{
|
||||
CmiRemoveKeyFromHashTable(HiveLink->ParentKeyRegistryHive,
|
||||
HashCell,
|
||||
(BLOCK_OFFSET)((ULONG)HiveLink | 1));
|
||||
ParentKeyCell->NumberOfSubKeys--;
|
||||
}
|
||||
}
|
||||
|
||||
RemoveEntryList (Entry);
|
||||
ExFreePool (Entry);
|
||||
break;
|
||||
}
|
||||
|
||||
Entry = Entry->Flink;
|
||||
}
|
||||
|
||||
ObDereferenceObject (KeyObject);
|
||||
|
||||
*RegistryHive = Hive;
|
||||
|
|
|
|||
|
|
@ -46,6 +46,7 @@ CmiObjectParse(PVOID ParsedObject,
|
|||
UNICODE_STRING LinkPath;
|
||||
UNICODE_STRING TargetPath;
|
||||
UNICODE_STRING KeyName;
|
||||
PREGISTRY_HIVE RegistryHive;
|
||||
|
||||
ParsedKey = ParsedObject;
|
||||
|
||||
|
|
@ -90,6 +91,7 @@ CmiObjectParse(PVOID ParsedObject,
|
|||
{
|
||||
Status = CmiScanForSubKey(ParsedKey->RegistryHive,
|
||||
ParsedKey->KeyCell,
|
||||
&RegistryHive,
|
||||
&SubKeyCell,
|
||||
&BlockOffset,
|
||||
&KeyName,
|
||||
|
|
@ -165,7 +167,7 @@ CmiObjectParse(PVOID ParsedObject,
|
|||
FoundObject->Flags = 0;
|
||||
FoundObject->KeyCell = SubKeyCell;
|
||||
FoundObject->KeyCellOffset = BlockOffset;
|
||||
FoundObject->RegistryHive = ParsedKey->RegistryHive;
|
||||
FoundObject->RegistryHive = RegistryHive;
|
||||
RtlCreateUnicodeString(&FoundObject->Name,
|
||||
KeyName.Buffer);
|
||||
CmiAddKeyToList(ParsedKey, FoundObject);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue