4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* $Id$ */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/** @file
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * fsw_efi.c - EFI host environment code.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (C) 2010-2012 Oracle Corporation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * available from http://www.virtualbox.org. This file is free software;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * you can redistribute it and/or modify it under the terms of the GNU
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * General Public License (GPL) as published by the Free Software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * The contents of this file may alternatively be used under the terms
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * of the Common Development and Distribution License Version 1.0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * VirtualBox OSE distribution, in which case the provisions of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * CDDL are applicable instead of those of the GPL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * You may elect to license modified versions of this file under the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * terms and conditions of either the GPL or the CDDL or both.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*-
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This code is based on:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (c) 2006 Christoph Pfisterer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Redistribution and use in source and binary forms, with or without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * modification, are permitted provided that the following conditions are
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * met:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * * Redistributions of source code must retain the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * * Redistributions in binary form must reproduce the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * documentation and/or other materials provided with the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * distribution.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * * Neither the name of Christoph Pfisterer nor the names of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * contributors may be used to endorse or promote products derived
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * from this software without specific prior written permission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include "fsw_efi.h"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define DEBUG_LEVEL 0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifndef FSTYPE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifdef VBOX
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#error FSTYPE must be defined!
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define FSTYPE ext2
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/** Helper macro for stringification. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define FSW_EFI_STRINGIFY(x) L#x
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/** Expands to the EFI driver name given the file system type name. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define FSW_EFI_DRIVER_NAME(t) L"Fsw " FSW_EFI_STRINGIFY(t) L" File System Driver"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// function prototypes
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Supported(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Start(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Stop(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINTN NumberOfChildren,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE *ChildHandleBuffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_ComponentName_GetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR8 *Language,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT CHAR16 **DriverName);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_ComponentName_GetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ChildHandle OPTIONAL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR8 *Language,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT CHAR16 **ControllerName);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncvoid fsw_efi_change_blocksize(struct fsw_volume *vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 old_phys_blocksize, fsw_u32 old_log_blocksize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 new_phys_blocksize, fsw_u32 new_log_blocksize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_status_t fsw_efi_read_block(struct fsw_volume *vol, fsw_u32 phys_bno, void *buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_map_status(fsw_status_t fsw_status, FSW_VOLUME_DATA *Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileSystem_OpenVolume(IN EFI_FILE_IO_INTERFACE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **Root);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_to_FileHandle(IN struct fsw_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **NewFileHandle);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_read(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_getpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT UINT64 *Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_setpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_open(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **NewHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR16 *FileName,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 OpenMode,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Attributes);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_read(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_setpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_getinfo(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_GUID *InformationType,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_fill_FileInfo(IN FSW_VOLUME_DATA *Volume,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN struct fsw_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Interface structure for the EFI Driver Binding protocol.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_DRIVER_BINDING_PROTOCOL fsw_efi_DriverBinding_table = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_DriverBinding_Supported,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_DriverBinding_Start,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_DriverBinding_Stop,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync 0x10,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync};
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Interface structure for the EFI Component Name protocol.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_COMPONENT_NAME_PROTOCOL fsw_efi_ComponentName_table = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_ComponentName_GetDriverName,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_ComponentName_GetControllerName,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync "eng"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync};
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Dispatch table for our FSW host driver.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstruct fsw_host_table fsw_efi_host_table = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_STRING_TYPE_UTF16,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_change_blocksize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_read_block
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync};
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncextern struct fsw_fstype_table FSW_FSTYPE_TABLE_NAME(FSTYPE);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Image entry point. Installs the Driver Binding and Component Name protocols
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * on the image's handle. Actually mounting a file system is initiated through
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the Driver Binding protocol at the firmware's request.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_main(IN EFI_HANDLE ImageHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_SYSTEM_TABLE *SystemTable)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifndef VBOX
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync InitializeLib(ImageHandle, SystemTable);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // complete Driver Binding protocol instance
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_DriverBinding_table.ImageHandle = ImageHandle;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_DriverBinding_table.DriverBindingHandle = ImageHandle;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // install Driver Binding protocol
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->InstallProtocolInterface(&fsw_efi_DriverBinding_table.DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DriverBindingProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_NATIVE_INTERFACE,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &fsw_efi_DriverBinding_table);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR (Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // install Component Name protocol
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->InstallProtocolInterface(&fsw_efi_DriverBinding_table.DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(ComponentNameProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_NATIVE_INTERFACE,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &fsw_efi_ComponentName_table);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR (Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Driver Binding EFI protocol, Supported function. This function is called by EFI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to test if this driver can handle a certain device. Our implementation only checks
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * if the device is a disk (i.e. that it supports the Block I/O and Disk I/O protocols)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and implicitly checks if the disk is already in use by another driver.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Supported(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_DISK_IO *DiskIo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // we check for both DiskIO and BlockIO protocols
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // first, open DiskIO
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncEnter();
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncMarkDP(RemainingDevicePath);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->OpenProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DiskIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **) &DiskIo,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_GET_PROTOCOL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync {
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // we were just checking, close it again
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync BS->CloseProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DiskIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // next, check BlockIO without actually opening it
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->OpenProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(BlockIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_TEST_PROTOCOL);
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic EFI_STATUS fsw_efi_ReMount(IN FSW_VOLUME_DATA *pVolume,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_DISK_IO *pDiskIo,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_BLOCK_IO *pBlockIo)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncEnter();
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->Signature = FSW_VOLUME_DATA_SIGNATURE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->Handle = ControllerHandle;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->DiskIo = pDiskIo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->MediaId = pBlockIo->Media->MediaId;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->LastIOStatus = EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // mount the filesystem
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_mount(pVolume, &fsw_efi_host_table,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &FSW_FSTYPE_TABLE_NAME(FSTYPE), &pVolume->vol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
e99df4387f81aa7b9900504a6a6117e0d3226eb3vboxsync VBoxLogFlowFuncMarkRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (!EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // register the SimpleFileSystem protocol
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->FileSystem.Revision = EFI_FILE_IO_INTERFACE_REVISION;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pVolume->FileSystem.OpenVolume = fsw_efi_FileSystem_OpenVolume;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->InstallMultipleProtocolInterfaces(&ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(SimpleFileSystemProtocol), &pVolume->FileSystem,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"Fsw ERROR: InstallMultipleProtocolInterfaces returned %x\n", Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Driver Binding EFI protocol, Start function. This function is called by EFI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to start driving the given device. It is still possible at this point to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * return EFI_UNSUPPORTED, and in fact we will do so if the file system driver
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * cannot find the superblock signature (or equivalent) that it expects.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This function allocates memory for a per-volume structure, opens the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * required protocols (just Disk I/O in our case, Block I/O is only looked
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * at to get the MediaId field), and lets the FSW core mount the file system.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * If successful, an EFI Simple File System protocol is exported on the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * device handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Start(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_BLOCK_IO *BlockIo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_DISK_IO *DiskIo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncEnter();
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // open consumed protocols
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->OpenProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(BlockIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **) &BlockIo,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_GET_PROTOCOL); // NOTE: we only want to look at the MediaId
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status)) {
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->OpenProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DiskIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **) &DiskIo,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_BY_DRIVER);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status)) {
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // allocate volume structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume = AllocateZeroPool(sizeof(FSW_VOLUME_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_ReMount(Volume, ControllerHandle, DiskIo, BlockIo);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // on errors, close the opened protocols
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Volume->vol != NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_unmount(Volume->vol);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FreePool(Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if 0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Status == EFI_MEDIA_CHANGED)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_ReMount(Volume, ControllerHandle, DiskIo, BlockIo);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync BS->CloseProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DiskIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
76a9bce2b9ca58813ae03900c71fa04b93a04f1avboxsync VBoxLogFlowFuncLeaveRC(Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Driver Binding EFI protocol, Stop function. This function is called by EFI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to stop the driver on the given device. This translates to an unmount
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * call for the FSW core.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * We assume that all file handles on the volume have been closed before
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the driver is stopped. At least with the EFI shell, that is actually the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * case; it closes all file handles between commands.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_DriverBinding_Stop(IN EFI_DRIVER_BINDING_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINTN NumberOfChildren,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE *ChildHandleBuffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_FILE_IO_INTERFACE *FileSystem;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_DriverBinding_Stop\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get the installed SimpleFileSystem interface
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->OpenProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(SimpleFileSystemProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (VOID **) &FileSystem,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_OPEN_PROTOCOL_GET_PROTOCOL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get private data structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume = FSW_VOLUME_FROM_FILE_SYSTEM(FileSystem);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // uninstall Simple File System protocol
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->UninstallMultipleProtocolInterfaces(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(SimpleFileSystemProtocol), &Volume->FileSystem,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"Fsw ERROR: UninstallMultipleProtocolInterfaces returned %x\n", Status);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_DriverBinding_Stop: protocol uninstalled successfully\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // release private data structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Volume->vol != NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_unmount(Volume->vol);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FreePool(Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // close the consumed protocols
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = BS->CloseProtocol(ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync &PROTO_NAME(DiskIoProtocol),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This->DriverBindingHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ControllerHandle);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Component Name EFI protocol, GetDriverName function. Used by the EFI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * environment to inquire the name of this driver. The name returned is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * based on the file system type actually used in compilation.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_ComponentName_GetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR8 *Language,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT CHAR16 **DriverName)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Language == NULL || DriverName == NULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_INVALID_PARAMETER;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if 0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Language[0] == 'e' && Language[1] == 'n' && Language[2] == 'g' && Language[3] == 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *DriverName = FSW_EFI_DRIVER_NAME(FSTYPE);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Component Name EFI protocol, GetControllerName function. Not implemented
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * because this is not a "bus" driver in the sense of the EFI Driver Model.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_ComponentName_GetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ControllerHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_HANDLE ChildHandle OPTIONAL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR8 *Language,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT CHAR16 **ControllerName)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * FSW interface function for block size changes. This function is called by the FSW core
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * when the file system driver changes the block sizes for the volume.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncvoid fsw_efi_change_blocksize(struct fsw_volume *vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 old_phys_blocksize, fsw_u32 old_log_blocksize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 new_phys_blocksize, fsw_u32 new_log_blocksize)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // nothing to do
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * FSW interface function to read data blocks. This function is called by the FSW core
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to read a block of data from the device. The buffer is allocated by the core code.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_status_t fsw_efi_read_block(struct fsw_volume *vol, fsw_u32 phys_bno, void *buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume = (FSW_VOLUME_DATA *)vol->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_MSG_DEBUGV((FSW_MSGSTR("fsw_efi_read_block: %d (%d)\n"), phys_bno, vol->phys_blocksize));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // read from disk
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = Volume->DiskIo->ReadDisk(Volume->DiskIo, Volume->MediaId,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (UINT64)phys_bno * vol->phys_blocksize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->phys_blocksize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume->LastIOStatus = Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return FSW_IO_ERROR;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return FSW_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Map FSW status codes to EFI status codes. The FSW_IO_ERROR code is only produced
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * by fsw_efi_read_block, so we map it back to the EFI status code remembered from
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the last I/O operation.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_map_status(fsw_status_t fsw_status, FSW_VOLUME_DATA *Volume)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync switch (fsw_status) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_SUCCESS:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_OUT_OF_MEMORY:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_VOLUME_CORRUPTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_IO_ERROR:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Volume->LastIOStatus;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_UNSUPPORTED:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_NOT_FOUND:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_NOT_FOUND;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case FSW_VOLUME_CORRUPTED:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_VOLUME_CORRUPTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync default:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_DEVICE_ERROR;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File System EFI protocol, OpenVolume function. Creates a file handle for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the root directory and returns it. Note that this function may be called
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * multiple times and returns a new file handle each time. Each returned
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * handle is closed by the client using it.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileSystem_OpenVolume(IN EFI_FILE_IO_INTERFACE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **Root)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume = FSW_VOLUME_FROM_FILE_SYSTEM(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_FileSystem_OpenVolume\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_dnode_to_FileHandle(Volume->vol->root, Root);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Open function. Dispatches the call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * based on the kind of file handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Open(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **NewHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR16 *FileName,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 OpenMode,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Attributes)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (File->Type == FSW_EFI_FILE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_dir_open(File, NewHandle, FileName, OpenMode, Attributes);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // not supported for regular files
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Close function. Closes the FSW shandle
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and frees the memory used for the structure.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Close(IN EFI_FILE *This)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_FileHandle_Close\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_shandle_close(&File->shand);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FreePool(File);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Delete function. Calls through to Close
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and returns a warning because this driver is read-only.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Delete(IN EFI_FILE *This)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = This->Close(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Status == EFI_SUCCESS) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // this driver is read-only
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = EFI_WARN_DELETE_FAILURE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Read function. Dispatches the call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * based on the kind of file handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Read(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (File->Type == FSW_EFI_FILE_TYPE_FILE)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_file_read(File, BufferSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else if (File->Type == FSW_EFI_FILE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_dir_read(File, BufferSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Write function. Returns unsupported status
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * because this driver is read-only.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Write(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // this driver is read-only
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_WRITE_PROTECTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, GetPosition function. Dispatches the call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * based on the kind of file handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_GetPosition(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT UINT64 *Position)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (File->Type == FSW_EFI_FILE_TYPE_FILE)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_file_getpos(File, Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // not defined for directories
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, SetPosition function. Dispatches the call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * based on the kind of file handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_SetPosition(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Position)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (File->Type == FSW_EFI_FILE_TYPE_FILE)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_file_setpos(File, Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else if (File->Type == FSW_EFI_FILE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_dir_setpos(File, Position);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, GetInfo function. Dispatches to the common
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * function implementing this.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_GetInfo(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_GUID *InformationType,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File = FSW_FILE_FROM_FILE_HANDLE(This);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return fsw_efi_dnode_getinfo(File, InformationType, BufferSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, SetInfo function. Returns unsupported status
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * because this driver is read-only.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_SetInfo(IN EFI_FILE *This,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_GUID *InformationType,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINTN BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // this driver is read-only
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_WRITE_PROTECTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * File Handle EFI protocol, Flush function. Returns unsupported status
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * because this driver is read-only.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS EFIAPI fsw_efi_FileHandle_Flush(IN EFI_FILE *This)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // this driver is read-only
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_WRITE_PROTECTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Set up a file handle for a dnode. This function allocates a data structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * for a file handle, opens a FSW shandle and populates the EFI_FILE structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * with the interface functions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_to_FileHandle(IN struct fsw_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **NewFileHandle)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_FILE_DATA *File;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // make sure the dnode has complete info
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_fill(dno), (FSW_VOLUME_DATA *)dno->vol->host_data);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // check type
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (dno->type != FSW_DNODE_TYPE_FILE && dno->type != FSW_DNODE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // allocate file structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File = AllocateZeroPool(sizeof(FSW_FILE_DATA));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->Signature = FSW_FILE_DATA_SIGNATURE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (dno->type == FSW_DNODE_TYPE_FILE)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->Type = FSW_EFI_FILE_TYPE_FILE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else if (dno->type == FSW_DNODE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->Type = FSW_EFI_FILE_TYPE_DIR;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // open shandle
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_shandle_open(dno, &File->shand),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (FSW_VOLUME_DATA *)dno->vol->host_data);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FreePool(File);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // populate the file handle
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Revision = EFI_FILE_HANDLE_REVISION;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Open = fsw_efi_FileHandle_Open;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Close = fsw_efi_FileHandle_Close;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Delete = fsw_efi_FileHandle_Delete;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Read = fsw_efi_FileHandle_Read;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Write = fsw_efi_FileHandle_Write;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.GetPosition = fsw_efi_FileHandle_GetPosition;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.SetPosition = fsw_efi_FileHandle_SetPosition;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.GetInfo = fsw_efi_FileHandle_GetInfo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.SetInfo = fsw_efi_FileHandle_SetInfo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->FileHandle.Flush = fsw_efi_FileHandle_Flush;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *NewFileHandle = &File->FileHandle;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Data read function for regular files. Calls through to fsw_shandle_read.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_read(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 buffer_size;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_file_read %d bytes\n", *BufferSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer_size = (fsw_u32)*BufferSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (buffer_size != *BufferSize)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer_size = ~(fsw_u32)0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_shandle_read(&File->shand, &buffer_size, Buffer),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync (FSW_VOLUME_DATA *)File->shand.dnode->vol->host_data);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = buffer_size;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get file position for regular files.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_getpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT UINT64 *Position)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *Position = File->shand.pos;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Set file position for regular files. EFI specifies the all-ones value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to be a special value for the end of the file.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_file_setpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Position)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Position == 0xFFFFFFFFFFFFFFFFULL)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->shand.pos = File->shand.dnode->size;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->shand.pos = Position;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Open function used to open new file handles relative to a directory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * In EFI, the "open file" function is implemented by directory file handles
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and is passed a relative or volume-absolute path to the file or directory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to open. We use fsw_dnode_lookup_path to find the node plus an additional
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * call to fsw_dnode_resolve because EFI has no concept of symbolic links.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_open(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT EFI_FILE **NewHandle,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN CHAR16 *FileName,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 OpenMode,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Attributes)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume = (FSW_VOLUME_DATA *)File->shand.dnode->vol->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_dnode *dno;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_dnode *target_dno;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_string lookup_path;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_dir_open: '%s'\n", FileName);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (OpenMode != EFI_FILE_MODE_READ)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_WRITE_PROTECTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lookup_path.type = FSW_STRING_TYPE_UTF16;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lookup_path.len = (int)StrLen(FileName);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lookup_path.size = lookup_path.len * sizeof(fsw_u16);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync lookup_path.data = FileName;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // resolve the path (symlinks along the way are automatically resolved)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_lookup_path(File->shand.dnode, &lookup_path, '\\', &dno),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // if the final node is a symlink, also resolve it
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_resolve(dno, &target_dno),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_dnode_release(dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync dno = target_dno;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // make a new EFI handle for the target dnode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_dnode_to_FileHandle(dno, NewHandle);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_dnode_release(dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Read function for directories. A file handle read on a directory retrieves
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the next directory entry.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_read(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume = (FSW_VOLUME_DATA *)File->shand.dnode->vol->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_dnode *dno;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_dir_read...\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // read the next entry
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_dir_read(&File->shand, &dno),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Status == EFI_NOT_FOUND) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // end of directory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"...no more entries\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get info into buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_dnode_fill_FileInfo(Volume, dno, BufferSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_dnode_release(dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Set file position for directories. The only allowed set position operation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * for directories is to rewind the directory completely by setting the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * position to zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dir_setpos(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN UINT64 Position)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (Position == 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync File->shand.pos = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // directories can only rewind to the start
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get file or volume information. This function implements the GetInfo call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * for all file handles. Control is dispatched according to the type of information
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * requested by the caller.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_getinfo(IN FSW_FILE_DATA *File,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_GUID *InformationType,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSW_VOLUME_DATA *Volume = (FSW_VOLUME_DATA *)File->shand.dnode->vol->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_FILE_SYSTEM_INFO *FSInfo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync UINTN RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_volume_stat vsb;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (CompareGuid(InformationType, &GUID_NAME(FileInfo))) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_dnode_getinfo: FILE_INFO\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_dnode_fill_FileInfo(Volume, File->shand.dnode, BufferSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else if (CompareGuid(InformationType, &GUID_NAME(FileSystemInfo)) == 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_dnode_getinfo: FILE_SYSTEM_INFO\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // check buffer size
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RequiredSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + fsw_efi_strsize(&Volume->vol->label);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*BufferSize < RequiredSize) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_BUFFER_TOO_SMALL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // fill structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo = (EFI_FILE_SYSTEM_INFO *)Buffer;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo->Size = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo->ReadOnly = TRUE;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo->BlockSize = Volume->vol->log_blocksize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_strcpy(FSInfo->VolumeLabel, &Volume->vol->label);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get the missing info from the fs driver
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ZeroMem(&vsb, sizeof(struct fsw_volume_stat));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_volume_stat(Volume->vol, &vsb), Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo->VolumeSize = vsb.total_bytes;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FSInfo->FreeSpace = vsb.free_bytes;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // prepare for return
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else if (CompareGuid(InformationType, &GUID_NAME(FileSystemVolumeLabelInfoId))) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"fsw_efi_dnode_getinfo: FILE_SYSTEM_VOLUME_LABEL\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // check buffer size
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RequiredSize = SIZE_OF_EFI_FILE_SYSTEM_VOLUME_LABEL_INFO + fsw_efi_strsize(&Volume->vol->label);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*BufferSize < RequiredSize) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_BUFFER_TOO_SMALL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // copy volume label
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_strcpy(((EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *)Buffer)->VolumeLabel, &Volume->vol->label);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // prepare for return
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } else {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = EFI_UNSUPPORTED;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Time mapping callback for the fsw_dnode_stat call. This function converts
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * a Posix style timestamp into an EFI_TIME structure and writes it to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * appropriate member of the EFI_FILE_INFO structure that we're filling.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_efi_store_time_posix(struct fsw_dnode_stat *sb, int which, fsw_u32 posix_time)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_FILE_INFO *FileInfo = (EFI_FILE_INFO *)sb->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (which == FSW_DNODE_STAT_CTIME)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_decode_time(&FileInfo->CreateTime, posix_time);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else if (which == FSW_DNODE_STAT_MTIME)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_decode_time(&FileInfo->ModificationTime, posix_time);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else if (which == FSW_DNODE_STAT_ATIME)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_decode_time(&FileInfo->LastAccessTime, posix_time);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Mode mapping callback for the fsw_dnode_stat call. This function looks at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the Posix mode passed by the file system driver and makes appropriate
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * adjustments to the EFI_FILE_INFO structure that we're filling.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_efi_store_attr_posix(struct fsw_dnode_stat *sb, fsw_u16 posix_mode)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_FILE_INFO *FileInfo = (EFI_FILE_INFO *)sb->host_data;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((posix_mode & S_IWUSR) == 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->Attribute |= EFI_FILE_READ_ONLY;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/**
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Common function to fill an EFI_FILE_INFO with information about a dnode.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncEFI_STATUS fsw_efi_dnode_fill_FileInfo(IN FSW_VOLUME_DATA *Volume,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN struct fsw_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN OUT UINTN *BufferSize,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OUT VOID *Buffer)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync{
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_STATUS Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_FILE_INFO *FileInfo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync UINTN RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_dnode_stat sb;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // make sure the dnode has complete info
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_fill(dno), Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // TODO: check/assert that the dno's name is in UTF16
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // check buffer size
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync RequiredSize = SIZE_OF_EFI_FILE_INFO + fsw_efi_strsize(&dno->name);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (*BufferSize < RequiredSize) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // TODO: wind back the directory in this case
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"...BUFFER TOO SMALL\n");
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_BUFFER_TOO_SMALL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // fill structure
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ZeroMem(Buffer, RequiredSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo = (EFI_FILE_INFO *)Buffer;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->Size = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->FileSize = dno->size;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->Attribute = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (dno->type == FSW_DNODE_TYPE_DIR)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->Attribute |= EFI_FILE_DIRECTORY;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_efi_strcpy(FileInfo->FileName, &dno->name);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // get the missing info from the fs driver
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ZeroMem(&sb, sizeof(struct fsw_dnode_stat));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb.store_time_posix = fsw_efi_store_time_posix;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb.store_attr_posix = fsw_efi_store_attr_posix;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb.host_data = FileInfo;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = fsw_efi_map_status(fsw_dnode_stat(dno, &sb), Volume);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (EFI_ERROR(Status))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return Status;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync FileInfo->PhysicalSize = sb.used_bytes;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // prepare for return
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *BufferSize = RequiredSize;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#if DEBUG_LEVEL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Print(L"...returning '%s'\n", FileInfo->FileName);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return EFI_SUCCESS;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// EOF