mirror of
https://github.com/reactos/reactos.git
synced 2024-11-05 06:09:58 +00:00
189 lines
4.6 KiB
C
189 lines
4.6 KiB
C
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: File Management IFS Utility functions
|
|
* FILE: reactos/dll/win32/fmifs/init.c
|
|
* PURPOSE: Initialisation
|
|
*
|
|
* PROGRAMMERS: Emanuele Aliberti
|
|
* Hervé Poussineau (hpoussin@reactos.org)
|
|
*/
|
|
|
|
#include "precomp.h"
|
|
|
|
#include <winreg.h>
|
|
|
|
#define NTOS_MODE_USER
|
|
#include <ndk/cmfuncs.h>
|
|
#include <ndk/obfuncs.h>
|
|
|
|
static BOOLEAN FmIfsInitialized = FALSE;
|
|
LIST_ENTRY ProviderListHead;
|
|
|
|
PIFS_PROVIDER
|
|
GetProvider(
|
|
IN PWCHAR FileSystem)
|
|
{
|
|
PLIST_ENTRY ListEntry;
|
|
PIFS_PROVIDER Provider;
|
|
|
|
ListEntry = ProviderListHead.Flink;
|
|
while (ListEntry != &ProviderListHead)
|
|
{
|
|
Provider = CONTAINING_RECORD(ListEntry, IFS_PROVIDER, ListEntry);
|
|
if (_wcsicmp(Provider->Name, FileSystem) == 0)
|
|
return Provider;
|
|
ListEntry = ListEntry->Flink;
|
|
}
|
|
|
|
/* Provider not found */
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static
|
|
BOOLEAN
|
|
AddProvider(
|
|
IN PCUNICODE_STRING FileSystem,
|
|
IN PWCHAR DllFile)
|
|
{
|
|
PIFS_PROVIDER Provider = NULL;
|
|
ULONG RequiredSize;
|
|
HMODULE hMod = NULL;
|
|
BOOLEAN ret = FALSE;
|
|
|
|
hMod = LoadLibraryW(DllFile);
|
|
if (!hMod)
|
|
goto cleanup;
|
|
|
|
RequiredSize = FIELD_OFFSET(IFS_PROVIDER, Name)
|
|
+ FileSystem->Length + sizeof(UNICODE_NULL);
|
|
Provider = (PIFS_PROVIDER)RtlAllocateHeap(
|
|
RtlGetProcessHeap(),
|
|
0,
|
|
RequiredSize);
|
|
if (!Provider)
|
|
goto cleanup;
|
|
RtlZeroMemory(Provider, RequiredSize);
|
|
|
|
/* Get function pointers */
|
|
Provider->ChkdskEx = (CHKDSKEX)GetProcAddress(hMod, "ChkdskEx");
|
|
//Provider->Extend = (EXTEND)GetProcAddress(hMod, "Extend");
|
|
Provider->FormatEx = (FORMATEX)GetProcAddress(hMod, "FormatEx");
|
|
|
|
RtlCopyMemory(Provider->Name, FileSystem->Buffer, FileSystem->Length);
|
|
|
|
InsertTailList(&ProviderListHead, &Provider->ListEntry);
|
|
ret = TRUE;
|
|
|
|
cleanup:
|
|
if (!ret)
|
|
{
|
|
if (hMod)
|
|
FreeLibrary(hMod);
|
|
if (Provider)
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, Provider);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static
|
|
BOOLEAN
|
|
InitializeFmIfsOnce(VOID)
|
|
{
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
UNICODE_STRING RegistryPath
|
|
= RTL_CONSTANT_STRING(L"\\REGISTRY\\Machine\\SOFTWARE\\ReactOS\\ReactOS\\CurrentVersion\\IFS");
|
|
HANDLE hKey = NULL;
|
|
PKEY_VALUE_FULL_INFORMATION Buffer;
|
|
ULONG BufferSize = sizeof(KEY_VALUE_FULL_INFORMATION) + MAX_PATH;
|
|
ULONG RequiredSize;
|
|
ULONG i = 0;
|
|
UNICODE_STRING Name;
|
|
UNICODE_STRING Data;
|
|
NTSTATUS Status;
|
|
|
|
InitializeListHead(&ProviderListHead);
|
|
|
|
/* Read IFS providers from HKLM\SOFTWARE\ReactOS\ReactOS\CurrentVersion\IFS */
|
|
InitializeObjectAttributes(&ObjectAttributes, &RegistryPath, 0, NULL, NULL);
|
|
Status = NtOpenKey(&hKey, KEY_QUERY_VALUE, &ObjectAttributes);
|
|
if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
|
|
return TRUE;
|
|
else if (!NT_SUCCESS(Status))
|
|
return FALSE;
|
|
|
|
Buffer = (PKEY_VALUE_FULL_INFORMATION)RtlAllocateHeap(
|
|
RtlGetProcessHeap(),
|
|
0,
|
|
BufferSize);
|
|
if (!Buffer)
|
|
{
|
|
NtClose(hKey);
|
|
return FALSE;
|
|
}
|
|
|
|
while (TRUE)
|
|
{
|
|
Status = NtEnumerateValueKey(
|
|
hKey,
|
|
i++,
|
|
KeyValueFullInformation,
|
|
Buffer,
|
|
BufferSize,
|
|
&RequiredSize);
|
|
if (Status == STATUS_BUFFER_OVERFLOW)
|
|
continue;
|
|
else if (!NT_SUCCESS(Status))
|
|
break;
|
|
else if (Buffer->Type != REG_SZ)
|
|
continue;
|
|
|
|
Name.Length = Name.MaximumLength = Buffer->NameLength;
|
|
Name.Buffer = Buffer->Name;
|
|
Data.Length = Data.MaximumLength = Buffer->DataLength;
|
|
Data.Buffer = (PWCHAR)((ULONG_PTR)Buffer + Buffer->DataOffset);
|
|
if (Data.Length > sizeof(WCHAR) && Data.Buffer[Data.Length / sizeof(WCHAR) - 1] == UNICODE_NULL)
|
|
Data.Length -= sizeof(WCHAR);
|
|
|
|
AddProvider(&Name, Data.Buffer);
|
|
}
|
|
|
|
NtClose(hKey);
|
|
RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
|
|
return TRUE;
|
|
}
|
|
|
|
/* FMIFS.8 */
|
|
BOOLEAN
|
|
NTAPI
|
|
InitializeFmIfs(
|
|
IN PVOID hinstDll,
|
|
IN DWORD dwReason,
|
|
IN PVOID reserved)
|
|
{
|
|
switch (dwReason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
if (FmIfsInitialized == FALSE)
|
|
{
|
|
if (InitializeFmIfsOnce() == FALSE)
|
|
return FALSE;
|
|
|
|
FmIfsInitialized = TRUE;
|
|
}
|
|
break;
|
|
|
|
case DLL_THREAD_ATTACH:
|
|
break;
|
|
|
|
case DLL_THREAD_DETACH:
|
|
break;
|
|
|
|
case DLL_PROCESS_DETACH:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* EOF */
|