MdePkg/Include/Protocol/GuidedSectionExtraction.h

   1 /** @file
   2   This file declares GUIDed section extraction protocol.
   3
   4   This interface provides a means of decoding a GUID defined encapsulation
   5   section. There may be multiple different GUIDs associated with the GUIDed
   6   section extraction protocol. That is, all instances of the GUIDed section
   7   extraction protocol must have the same interface structure.
   8
   9   Copyright (c) 2006, Intel Corporation
  10   All rights reserved. This program and the accompanying materials
  11   are licensed and made available under the terms and conditions of the BSD License
  12   which accompanies this distribution.  The full text of the license may be found at
  13   http://opensource.org/licenses/bsd-license.php
  14
  15   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  16   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  17
  18   Module Name:  GuidedSectionExtraction.h
  19
  20   @par Revision Reference:
  21   This protocol is defined in Firmware Volume Specification.
  22   Version 0.9
  23
  24 **/
  25
  26 #ifndef __GUIDED_SECTION_EXTRACTION_PROTOCOL_H__
  27 #define __GUIDED_SECTION_EXTRACTION_PROTOCOL_H__
  28
  29
  30 //
  31 // Protocol GUID definition. Each GUIDed section extraction protocol has the
  32 // same interface but with different GUID. All the GUIDs is defined here.
  33 // May add multiple GUIDs here.
  34 //
  35 #define EFI_CRC32_GUIDED_SECTION_EXTRACTION_PROTOCOL_GUID \
  36   { \
  37     0xFC1BCDB0, 0x7D31, 0x49aa, {0x93, 0x6A, 0xA4, 0x60, 0x0D, 0x9D, 0xD0, 0x83 } \
  38   }
  39
  40 //
  41 // Forward reference for pure ANSI compatability
  42 //
  43 typedef struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL  EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL;
  44
  45 //
  46 // Protocol member functions
  47 //
  48 /**
  49   Processes the input section and returns the data contained therein along
  50   with the authentication status.
  51
  52   @param  This                  Indicates the EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL instance.
  53   @param  InputSection          Buffer containing the input GUIDed section to be processed.
  54   @param  OutputBuffer          *OutputBuffer is allocated from boot services pool memory
  55                                 and contains the new section stream.
  56   @param  OutputSize            A pointer to a caller-allocated UINTN in which the size
  57                                 of *OutputBuffer allocation is stored.
  58   @param  AuthenticationStatus  A pointer to a caller-allocated UINT32 that
  59                                 indicates the authentication status of the output buffer.
  60
  61   @retval EFI_SUCCESS           The InputSection was successfully processed and the
  62                                 section contents were returned.
  63   @retval EFI_OUT_OF_RESOURCES  The system has insufficient resources to
  64                                 process the request.
  65   @retval EFI_INVALID_PARAMETER The GUID in InputSection does not match
  66                                 this instance of the GUIDed Section Extraction Protocol.
  67
  68 **/
  69
  70 typedef
  71 EFI_STATUS
  72 (EFIAPI *EFI_EXTRACT_GUIDED_SECTION) (
  73   IN  EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL          *This,
  74   IN  VOID                                            *InputSection,
  75   OUT VOID                                            **OutputBuffer,
  76   OUT UINTN                                           *OutputSize,
  77   OUT UINT32                                          *AuthenticationStatus
  78   );
  79
  80 //
  81 // Protocol definition
  82 //
  83 /**
  84   @par Protocol Description:
  85   If a GUID-defined section is encountered when doing section extraction,
  86   the section extraction driver calls the appropriate instance of the GUIDed
  87   Section Extraction Protocol to extract the section stream contained therein.
  88
  89   @param ExtractSection
  90   Takes the GUIDed section as input and produces the section stream data.
  91
  92 **/
  93 struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL {
  94   EFI_EXTRACT_GUIDED_SECTION  ExtractSection;
  95 };
  96
  97 //
  98 // may add other GUID here
  99 //
 100 extern EFI_GUID gEfiCrc32GuidedSectionExtractionProtocolGuid;
 101
 102 #endif