BOOLEAN WinLdrLoadSystemHive	(	IN OUT PLOADER_PARAMETER_BLOCK	LoaderBlock,
		IN LPCSTR	DirectoryPath,
		IN LPCSTR	HiveName
	)
Definition at line 32 of file wlregistry.c.
Referenced by WinLdrInitSystemHive().
{
    ULONG FileId;
    CHAR FullHiveName[256];
    LONG Status;
    FILEINFORMATION FileInfo;
    ULONG HiveFileSize;
    ULONG_PTR HiveDataPhysical;
    PVOID HiveDataVirtual;
    ULONG BytesRead;
    LPCWSTR FsService;

    /* Concatenate path and filename to get the full name */
    strcpy(FullHiveName, DirectoryPath);
    strcat(FullHiveName, HiveName);
    //Print(L"Loading %s...\n", FullHiveName);
    Status = ArcOpen(FullHiveName, OpenReadOnly, &FileId);

    if (Status != ESUCCESS)
    {
        UiMessageBox("Opening hive file failed!");
        return FALSE;
    }

    /* Get the file length */
    Status = ArcGetFileInformation(FileId, &FileInfo);

    if (Status != ESUCCESS)
    {
        ArcClose(FileId);
        UiMessageBox("Hive file has 0 size!");
        return FALSE;
    }
    HiveFileSize = FileInfo.EndingAddress.LowPart;

    /* Round up the size to page boundary and alloc memory */
    HiveDataPhysical = (ULONG_PTR)MmAllocateMemoryWithType(
        MM_SIZE_TO_PAGES(HiveFileSize + MM_PAGE_SIZE - 1) << MM_PAGE_SHIFT,
        LoaderRegistryData);

    if (HiveDataPhysical == 0)
    {
        ArcClose(FileId);
        UiMessageBox("Unable to alloc memory for a hive!");
        return FALSE;
    }

    /* Convert address to virtual */
    HiveDataVirtual = PaToVa((PVOID)HiveDataPhysical);

    /* Fill LoaderBlock's entries */
    LoaderBlock->RegistryLength = HiveFileSize;
    LoaderBlock->RegistryBase = HiveDataVirtual;

    /* Finally read from file to the memory */
    Status = ArcRead(FileId, (PVOID)HiveDataPhysical, HiveFileSize, &BytesRead);
    if (Status != ESUCCESS)
    {
        ArcClose(FileId);
        UiMessageBox("Unable to read from hive file!");
        return FALSE;
    }

    // Add boot filesystem driver to the list
    FsService = FsGetServiceName(FileId);
    if (FsService)
    {
        TRACE("  Adding filesystem service %S\n", FsService);
        Status = WinLdrAddDriverToList(&LoaderBlock->BootDriverListHead,
            L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\",
            NULL,
            (LPWSTR)FsService);
        if (!Status)
            TRACE(" Failed to add filesystem service\n");
    }
    else
    {
        TRACE("  No required filesystem service\n");
    }

    ArcClose(FileId);
    return TRUE;
}
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