mirror of https://github.com/acidanthera/audk.git
65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
|
/**@file
|
||
|
|
|
||
|
|
Copyright (c) 2006, Intel Corporation
|
||
|
|
All rights reserved. This program and the accompanying materials
|
||
|
|
are licensed and made available under the terms and conditions of the BSD License
|
||
|
|
which accompanies this distribution. The full text of the license may be found at
|
||
|
|
http://opensource.org/licenses/bsd-license.php
|
||
|
|
|
||
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
SectionExtraction.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Section Extraction Protocol implementation.
|
||
|
|
|
||
|
|
Stream database is implemented as a linked list of section streams,
|
||
|
|
where each stream contains a linked list of children, which may be leaves or
|
||
|
|
encapsulations.
|
||
|
|
|
||
|
|
Children that are encapsulations generate new stream entries
|
||
|
|
when they are created. Streams can also be created by calls to
|
||
|
|
SEP->OpenSectionStream().
|
||
|
|
|
||
|
|
The database is only created far enough to return the requested data from
|
||
|
|
any given stream, or to determine that the requested data is not found.
|
||
|
|
|
||
|
|
If a GUIDed encapsulation is encountered, there are three possiblilites.
|
||
|
|
|
||
|
|
1) A support protocol is found, in which the stream is simply processed with
|
||
|
|
the support protocol.
|
||
|
|
|
||
|
|
2) A support protocol is not found, but the data is available to be read
|
||
|
|
without processing. In this case, the database is built up through the
|
||
|
|
recursions to return the data, and a RPN event is set that will enable
|
||
|
|
the stream in question to be refreshed if and when the required section
|
||
|
|
extraction protocol is published.This insures the AuthenticationStatus
|
||
|
|
does not become stale in the cache.
|
||
|
|
|
||
|
|
3) A support protocol is not found, and the data is not available to be read
|
||
|
|
without it. This results in EFI_PROTOCOL_ERROR.
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#ifndef _SECION_EXTRACTION_H_
|
||
|
|
#define _SECION_EXTRACTION_H_
|
||
|
|
|
||
|
|
#include <FrameworkDxe.h>
|
||
|
|
|
||
|
|
#include <Protocol/SectionExtraction.h>
|
||
|
|
|
||
|
|
#include <Library/BaseLib.h>
|
||
|
|
#include <Library/DebugLib.h>
|
||
|
|
#include <Library/UefiLib.h>
|
||
|
|
#include <Library/UefiBootServicesTableLib.h>
|
||
|
|
#include <Library/MemoryAllocationLib.h>
|
||
|
|
#include <Library/BaseMemoryLib.h>
|
||
|
|
#include <Protocol/Decompress.h>
|
||
|
|
#include <Protocol/GuidedSectionExtraction.h>
|
||
|
|
|
||
|
|
#endif // _SECTION_EXTRACTION_H_
|