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c311f86b 1/** @file\r
5879b875 2 If a GUID-defined section is encountered when doing section extraction, \r
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3 the PEI Foundation or the EFI_PEI_FILE_LOADER_PPI instance \r
4 calls the appropriate instance of the GUIDed Section Extraction PPI \r
d7132512 5 to extract the section stream contained therein. \r
5879b875 6\r
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7 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
8 This program and the accompanying materials \r
5879b875 9 are licensed and made available under the terms and conditions of the BSD License \r
10 which accompanies this distribution. The full text of the license may be found at \r
11 http://opensource.org/licenses/bsd-license.php \r
12\r
13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
15\r
5879b875 16 @par Revision Reference:\r
0047820e 17 This PPI is introduced in PI Version 1.0.\r
5879b875 18\r
19**/\r
20\r
21#ifndef __EFI_GUIDED_SECTION_EXTRACTION_PPI_H__\r
22#define __EFI_GUIDED_SECTION_EXTRACTION_PPI_H__\r
23\r
24//\r
25// Typically, protocol interface structures are identified \r
26// by associating them with a GUID. Each instance of \r
27// a protocol with a given GUID must have \r
28// the same interface structure. While all instances of \r
29// the GUIDed Section Extraction PPI must have \r
30// the same interface structure, they do not all have \r
31// te same GUID. The GUID that is associated with \r
32// an instance of the GUIDed Section Extraction Protocol \r
33// is used to correlate it with the GUIDed section type \r
34// that it is intended to process.\r
35//\r
36\r
37\r
00edb218 38typedef struct _EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI;\r
5879b875 39\r
5879b875 40\r
41/**\r
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42 Processes the input section and returns the data contained therein \r
43 along with the authentication status.\r
44\r
5879b875 45 The ExtractSection() function processes the input section and\r
00edb218 46 returns a pointer to the section contents. If the section being\r
5879b875 47 extracted does not require processing (if the section\r
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48 GuidedSectionHeader.Attributes has the\r
49 EFI_GUIDED_SECTION_PROCESSING_REQUIRED field cleared), then\r
50 OutputBuffer is just updated to point to the start of the\r
5879b875 51 section's contents. Otherwise, *Buffer must be allocated\r
52 from PEI permanent memory.\r
53\r
dafa11b1 54 @param This Indicates the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI\r
55 instance.\r
56 @param InputSection Buffer containing the input GUIDed section to be\r
57 processed.\r
58 @param OutputBuffer *OutputBuffer is allocated from PEI permanent memory\r
59 and contains the new section stream.\r
60 @param OutputSize A pointer to a caller-allocated UINTN in which\r
61 the size of *OutputBuffer allocation is stored.\r
62 If the function returns anything other than\r
63 EFI_SUCCESS, the value of *OutputSize is undefined.\r
64 @param AuthenticationStatus A pointer to a caller-allocated UINT32 that indicates\r
65 the authentication status of the output buffer.\r
66 If the input section's\r
67 GuidedSectionHeader.Attributes field has the\r
68 EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit as clear,\r
69 *AuthenticationStatus must return zero. These bits\r
70 reflect the status of the extraction operation.\r
71 If the function returns anything other than EFI_SUCCESS,\r
72 the value of *AuthenticationStatus is undefined.\r
5879b875 73 \r
dafa11b1 74 @retval EFI_SUCCESS The InputSection was successfully processed and the\r
5879b875 75 section contents were returned.\r
dafa11b1 76 @retval EFI_OUT_OF_RESOURCES The system has insufficient resources to process the request.\r
77 @retval EFI_INVALID_PARAMETER The GUID in InputSection does not match this instance of the\r
5879b875 78 GUIDed Section Extraction PPI.\r
79**/\r
80typedef\r
81EFI_STATUS\r
82(EFIAPI *EFI_PEI_EXTRACT_GUIDED_SECTION)(\r
dafa11b1 83 IN CONST EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI *This,\r
84 IN CONST VOID *InputSection,\r
85 OUT VOID **OutputBuffer,\r
86 OUT UINTN *OutputSize,\r
87 OUT UINT32 *AuthenticationStatus\r
5879b875 88);\r
89\r
dafa11b1 90///\r
91/// If a GUID-defined section is encountered when doing section extraction,\r
92/// the PEI Foundation or the EFI_PEI_FILE_LOADER_PPI instance\r
93/// calls the appropriate instance of the GUIDed Section\r
94/// Extraction PPI to extract the section stream contained\r
95/// therein.\r
96/// \r
5879b875 97struct _EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI {\r
00edb218 98 EFI_PEI_EXTRACT_GUIDED_SECTION ExtractSection;\r
5879b875 99};\r
100\r
101\r
102\r
103#endif\r
104\r