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3e5a3960 1/** @file\r
f22f941e 2 This file declares the Section Extraction PPI.\r
3e5a3960 3\r
61c244aa 4 This PPI is defined in PEI CIS version 0.91. It supports encapsulating sections,\r
5 such as GUIDed sections used to authenticate the file encapsulation of other domain-specific wrapping.\r
6\r
1c2f052d 7Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
22a69a5e 8SPDX-License-Identifier: BSD-2-Clause-Patent\r
3e5a3960 9\r
3e5a3960 10**/\r
11\r
61c244aa 12#ifndef __SECTION_EXTRACTION_H__\r
13#define __SECTION_EXTRACTION_H__\r
3e5a3960 14\r
15#define EFI_PEI_SECTION_EXTRACTION_PPI_GUID \\r
16 { \\r
17 0x4F89E208, 0xE144, 0x4804, {0x9E, 0xC8, 0x0F, 0x89, 0x4F, 0x7E, 0x36, 0xD7 } \\r
18 }\r
19\r
20typedef struct _EFI_PEI_SECTION_EXTRACTION_PPI EFI_PEI_SECTION_EXTRACTION_PPI;\r
21\r
22//\r
23// Bit values for AuthenticationStatus\r
24//\r
61c244aa 25#define EFI_AUTH_STATUS_PLATFORM_OVERRIDE 0x01\r
26#define EFI_AUTH_STATUS_IMAGE_SIGNED 0x02\r
27#define EFI_AUTH_STATUS_NOT_TESTED 0x04\r
28#define EFI_AUTH_STATUS_TEST_FAILED 0x08\r
3e5a3960 29\r
30/**\r
31 The function is used to retrieve a section from within a section file.\r
32 It will retrieve both encapsulation sections and leaf sections in their entirety,\r
33 exclusive of the section header.\r
34\r
f22f941e 35 @param PeiServices The pointer to the PEI Services Table.\r
61c244aa 36 @param This Indicates the calling context\r
1c2f052d
LG
37 @param SectionType The pointer to an EFI_SECTION_TYPE. If\r
38 SectionType == NULL, the contents of the entire\r
f22f941e 39 section are returned in Buffer. If SectionType\r
61c244aa 40 is not NULL, only the requested section is returned.\r
f22f941e 41 @param SectionDefinitionGuid The pointer to an EFI_GUID.\r
1c2f052d
LG
42 If SectionType == EFI_SECTION_GUID_DEFINED,\r
43 SectionDefinitionGuid indicates for which section\r
44 GUID to search. If SectionType != EFI_SECTION_GUID_DEFINED,\r
f22f941e 45 SectionDefinitionGuid is unused and is ignored.\r
61c244aa 46 @param SectionInstance If SectionType is not NULL, indicates which\r
47 instance of the requested section type to return.\r
1c2f052d 48 @param Buffer The pointer to a pointer to a buffer in which the\r
f22f941e 49 section contents are returned.\r
1c2f052d
LG
50 @param BufferSize A pointer to a caller-allocated UINT32. On input,\r
51 *BufferSize indicates the size in bytes of the\r
f22f941e 52 memory region pointed to by Buffer. On output,\r
1c2f052d 53 *BufferSize contains the number of bytes required\r
f22f941e 54 to read the section.\r
61c244aa 55 @param AuthenticationStatus A pointer to a caller-allocated UINT32 in\r
1c2f052d 56 which any metadata from encapsulating GUID-defined\r
f22f941e 57 sections is returned.\r
3e5a3960 58\r
f22f941e 59 @retval EFI_SUCCESS The section was successfully processed, and the section\r
3e5a3960 60 contents were returned in Buffer.\r
61 @retval EFI_PROTOCOL_ERROR A GUID-defined section was encountered in\r
1c2f052d
LG
62 the file with its EFI_GUIDED_SECTION_PROCESSING_REQUIRED\r
63 bit set, but there was no corresponding GUIDed\r
64 Section Extraction Protocol in the handle database.\r
f22f941e 65 *Buffer is unmodified.\r
1c2f052d 66 @retval EFI_NOT_FOUND The requested section does not exist.*Buffer is\r
f22f941e 67 unmodified.\r
1c2f052d 68 @retval EFI_OUT_OF_RESOURCES The system has insufficient resources to process\r
f22f941e 69 the request.\r
3e5a3960 70 @retval EFI_INVALID_PARAMETER The SectionStreamHandle does not exist.\r
71 @retval EFI_WARN_TOO_SMALL The size of the input buffer is insufficient to\r
1c2f052d
LG
72 contain the requested section. The input buffer\r
73 is filled and contents are section contents are\r
f22f941e 74 truncated.\r
3e5a3960 75\r
76**/\r
77typedef\r
78EFI_STATUS\r
69686d56 79(EFIAPI *EFI_PEI_GET_SECTION)(\r
3e5a3960 80 IN EFI_PEI_SERVICES **PeiServices,\r
81 IN EFI_PEI_SECTION_EXTRACTION_PPI *This,\r
82 IN EFI_SECTION_TYPE *SectionType,\r
83 IN EFI_GUID *SectionDefinitionGuid, OPTIONAL\r
84 IN UINTN SectionInstance,\r
85 IN VOID **Buffer,\r
86 IN OUT UINT32 *BufferSize,\r
87 OUT UINT32 *AuthenticationStatus\r
88 );\r
89\r
90/**\r
b80fbe85 91 This PPI supports encapsulating sections, such as GUIDed sections used to\r
3e5a3960 92 authenticate the file encapsulation of other domain-specific wrapping.\r
3e5a3960 93**/\r
94struct _EFI_PEI_SECTION_EXTRACTION_PPI {\r
aa4a31e3 95 EFI_PEI_GET_SECTION GetSection; ///< Retrieves a section from within a section file.\r
3e5a3960 96};\r
97\r
98extern EFI_GUID gEfiPeiSectionExtractionPpiGuid;\r
99\r
100#endif\r
61c244aa 101\r