C++ (Cpp) NtfsGrabFCB Examples

Example #1

File: fcb.c Project: GYGit/reactos

PNTFS_FCB
NtfsMakeRootFCB(PNTFS_VCB Vcb)
{
    PNTFS_FCB Fcb;
    PFILE_RECORD_HEADER MftRecord;
    PFILENAME_ATTRIBUTE FileName;

    MftRecord = ExAllocatePoolWithTag(NonPagedPool,
                                      Vcb->NtfsInfo.BytesPerFileRecord,
                                      TAG_NTFS);
    if (MftRecord == NULL)
    {
        return NULL;
    }

    if (!NT_SUCCESS(ReadFileRecord(Vcb, NTFS_FILE_ROOT, MftRecord)))
    {
        ExFreePoolWithTag(MftRecord, TAG_NTFS);
        return NULL;
    }

    FileName = GetFileNameFromRecord(Vcb, MftRecord, NTFS_FILE_NAME_WIN32);
    if (!FileName)
    {
        ExFreePoolWithTag(MftRecord, TAG_NTFS);
        return NULL;
    }

    Fcb = NtfsCreateFCB(L"\\", NULL, Vcb);
    if (!Fcb)
    {
        ExFreePoolWithTag(MftRecord, TAG_NTFS);
        return NULL;
    }

    memcpy(&Fcb->Entry, FileName, FIELD_OFFSET(FILENAME_ATTRIBUTE, NameLength));
    Fcb->Entry.NameType = FileName->NameType;
    Fcb->Entry.NameLength = 0;
    Fcb->Entry.Name[0] = UNICODE_NULL;
    Fcb->RefCount = 1;
    Fcb->DirIndex = 0;
    Fcb->RFCB.FileSize.QuadPart = FileName->DataSize;
    Fcb->RFCB.ValidDataLength.QuadPart = FileName->DataSize;
    Fcb->RFCB.AllocationSize.QuadPart = FileName->AllocatedSize;
    Fcb->MFTIndex = NTFS_FILE_ROOT;
    Fcb->LinkCount = MftRecord->LinkCount;

    NtfsFCBInitializeCache(Vcb, Fcb);
    NtfsAddFCBToTable(Vcb, Fcb);
    NtfsGrabFCB(Vcb, Fcb);

    ExFreePoolWithTag(MftRecord, TAG_NTFS);

    return Fcb;
}

Example #2

PNTFS_FCB
NtfsMakeRootFCB(PNTFS_VCB Vcb)
{
    PNTFS_FCB Fcb;

    Fcb = NtfsCreateFCB(L"\\", Vcb);

//    memset(Fcb->entry.Filename, ' ', 11);

//    Fcb->Entry.DataLengthL = Vcb->CdInfo.RootSize;
//    Fcb->Entry.ExtentLocationL = Vcb->CdInfo.RootStart;
//    Fcb->Entry.FileFlags = 0x02; // FILE_ATTRIBUTE_DIRECTORY;
    Fcb->RefCount = 1;
    Fcb->DirIndex = 0;
    Fcb->RFCB.FileSize.QuadPart = PAGE_SIZE;//Vcb->CdInfo.RootSize;
    Fcb->RFCB.ValidDataLength.QuadPart = PAGE_SIZE;//Vcb->CdInfo.RootSize;
    Fcb->RFCB.AllocationSize.QuadPart = PAGE_SIZE;//Vcb->CdInfo.RootSize;

    NtfsFCBInitializeCache(Vcb, Fcb);
    NtfsAddFCBToTable(Vcb, Fcb);
    NtfsGrabFCB(Vcb, Fcb);

    return Fcb;
}