code.delx.au - refind/blob - filesystems/fsw_efi.h

   1 /* $Id: fsw_efi.h 33540 2010-10-28 09:27:05Z vboxsync $ */
   2 /** @file
   3  * fsw_efi.h - EFI host environment header.
   4  */
   5
   6 /*
   7  * Copyright (C) 2010 Oracle Corporation
   8  *
   9  * This file is part of VirtualBox Open Source Edition (OSE), as
  10  * available from http://www.virtualbox.org. This file is free software;
  11  * you can redistribute it and/or modify it under the terms of the GNU
  12  * General Public License (GPL) as published by the Free Software
  13  * Foundation, in version 2 as it comes in the "COPYING" file of the
  14  * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
  15  * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
  16  */
  17
  18 /*-
  19  * This code is based on:
  20  *
  21  * Copyright (c) 2006 Christoph Pfisterer
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions are
  25  * met:
  26  *
  27  *  * Redistributions of source code must retain the above copyright
  28  *    notice, this list of conditions and the following disclaimer.
  29  *
  30  *  * Redistributions in binary form must reproduce the above copyright
  31  *    notice, this list of conditions and the following disclaimer in the
  32  *    documentation and/or other materials provided with the
  33  *    distribution.
  34  *
  35  *  * Neither the name of Christoph Pfisterer nor the names of the
  36  *    contributors may be used to endorse or promote products derived
  37  *    from this software without specific prior written permission.
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  40  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  41  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  42  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  43  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  45  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  46  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  47  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  48  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  49  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  50  */
  51
  52 #ifndef _FSW_EFI_H_
  53 #define _FSW_EFI_H_
  54
  55 #include "fsw_core.h"
  56
  57 #ifdef __MAKEWITH_GNUEFI
  58 #define CompareGuid(a, b) CompareGuid(a, b)==0
  59 #endif
  60
  61 // extern CHAR8     *msgCursor;
  62 // extern MESSAGE_LOG_PROTOCOL *Msg;
  63
  64 /**
  65  * EFI Host: Private per-volume structure.
  66  */
  67
  68 typedef struct {
  69     UINT64                      Signature;      //!< Used to identify this structure
  70
  71     EFI_FILE_IO_INTERFACE       FileSystem;     //!< Published EFI protocol interface structure
  72
  73     EFI_HANDLE                  Handle;         //!< The device handle the protocol is attached to
  74     EFI_DISK_IO                 *DiskIo;        //!< The Disk I/O protocol we use for disk access
  75     UINT32                      MediaId;        //!< The media ID from the Block I/O protocol
  76     EFI_STATUS                  LastIOStatus;   //!< Last status from Disk I/O
  77
  78     struct fsw_volume           *vol;           //!< FSW volume structure
  79
  80 } FSW_VOLUME_DATA;
  81
  82 /** Signature for the volume structure. */
  83 #define FSW_VOLUME_DATA_SIGNATURE  EFI_SIGNATURE_32 ('f', 's', 'w', 'V')
  84 /** Access macro for the volume structure. */
  85 #define FSW_VOLUME_FROM_FILE_SYSTEM(a)  CR (a, FSW_VOLUME_DATA, FileSystem, FSW_VOLUME_DATA_SIGNATURE)
  86
  87 /**
  88  * EFI Host: Private structure for a EFI_FILE interface.
  89  */
  90
  91 typedef struct {
  92     UINT64                      Signature;      //!< Used to identify this structure
  93
  94     EFI_FILE                    FileHandle;     //!< Published EFI protocol interface structure
  95
  96     UINT64                       Type;           //!< File type used for dispatching
  97     struct fsw_shandle          shand;          //!< FSW handle for this file
  98
  99 } FSW_FILE_DATA;
 100
 101 /** File type: regular file. */
 102 #define FSW_EFI_FILE_TYPE_FILE  (0)
 103 /** File type: directory. */
 104 #define FSW_EFI_FILE_TYPE_DIR   (1)
 105
 106 /** Signature for the file handle structure. */
 107 #define FSW_FILE_DATA_SIGNATURE    EFI_SIGNATURE_32 ('f', 's', 'w', 'F')
 108 /** Access macro for the file handle structure. */
 109 #define FSW_FILE_FROM_FILE_HANDLE(a)  CR (a, FSW_FILE_DATA, FileHandle, FSW_FILE_DATA_SIGNATURE)
 110
 111
 112 //
 113 // Library functions
 114 //
 115
 116 VOID fsw_efi_decode_time(OUT EFI_TIME *EfiTime, IN UINT32 UnixTime);
 117
 118 UINTN fsw_efi_strsize(struct fsw_string *s);
 119 VOID fsw_efi_strcpy(CHAR16 *Dest, struct fsw_string *src);
 120
 121
 122 #endif