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Diffstat (limited to 'BaseTools/Source/C/Include/Protocol/GuidedSectionExtraction.h')
| -rw-r--r-- | BaseTools/Source/C/Include/Protocol/GuidedSectionExtraction.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/BaseTools/Source/C/Include/Protocol/GuidedSectionExtraction.h b/BaseTools/Source/C/Include/Protocol/GuidedSectionExtraction.h new file mode 100644 index 0000000000..6a1114d053 --- /dev/null +++ b/BaseTools/Source/C/Include/Protocol/GuidedSectionExtraction.h @@ -0,0 +1,153 @@ +/** @file
+ This file declares GUIDed section extraction protocol.
+
+ This interface provides a means of decoding a GUID defined encapsulation
+ section. There may be multiple different GUIDs associated with the GUIDed
+ section extraction protocol. That is, all instances of the GUIDed section
+ extraction protocol must have the same interface structure.
+
+ Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+
+ 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.
+
+ File Name: EfiGuidedSectionExtraction.h
+
+ @par Revision Reference: PI
+ Version 1.00.
+
+**/
+
+#ifndef __EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL_H__
+#define __EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL_H__
+
+//
+// Forward reference for pure ANSI compatability
+
+typedef struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL;
+
+
+/**
+ The ExtractSection() function processes the input section and
+ allocates a buffer from the pool in which it returns the section
+ contents. If the section being extracted contains
+ authentication information (the section's
+ GuidedSectionHeader.Attributes field has the
+ EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit set), the values
+ returned in AuthenticationStatus must reflect the results of
+ the authentication operation. Depending on the algorithm and
+ size of the encapsulated data, the time that is required to do
+ a full authentication may be prohibitively long for some
+ classes of systems. To indicate this, use
+ EFI_SECURITY_POLICY_PROTOCOL_GUID, which may be published by
+ the security policy driver (see the Platform Initialization
+ Driver Execution Environment Core Interface Specification for
+ more details and the GUID definition). If the
+ EFI_SECURITY_POLICY_PROTOCOL_GUID exists in the handle
+ database, then, if possible, full authentication should be
+ skipped and the section contents simply returned in the
+ OutputBuffer. In this case, the
+ EFI_AUTH_STATUS_PLATFORM_OVERRIDE bit AuthenticationStatus
+ must be set on return. ExtractSection() is callable only from
+ TPL_NOTIFY and below. Behavior of ExtractSection() at any
+ EFI_TPL above TPL_NOTIFY is undefined. Type EFI_TPL is
+ defined in RaiseTPL() in the UEFI 2.0 specification.
+
+
+ @param This Indicates the
+ EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL instance.
+
+ @param InputSection Buffer containing the input GUIDed section
+ to be processed. OutputBuffer OutputBuffer
+ is allocated from boot services pool
+ memory and contains the new section
+ stream. The caller is responsible for
+ freeing this buffer.
+
+ @param OutputSize A pointer to a caller-allocated UINTN in
+ which the size of OutputBuffer allocation
+ is stored. If the function returns
+ anything other than EFI_SUCCESS, the value
+ of OutputSize is undefined.
+
+ @param AuthenticationStatus A pointer to a caller-allocated
+ UINT32 that indicates the
+ authentication status of the
+ output buffer. If the input
+ section's
+ GuidedSectionHeader.Attributes
+ field has the
+ EFI_GUIDED_SECTION_AUTH_STATUS_VAL
+ bit as clear, AuthenticationStatus
+ must return zero. Both local bits
+ (19:16) and aggregate bits (3:0)
+ in AuthenticationStatus are
+ returned by ExtractSection().
+ These bits reflect the status of
+ the extraction operation. The bit
+ pattern in both regions must be
+ the same, as the local and
+ aggregate authentication statuses
+ have equivalent meaning at this
+ level. If the function returns
+ anything other than EFI_SUCCESS,
+ the value of AuthenticationStatus
+ is undefined.
+
+
+ @retval EFI_SUCCESS The InputSection was successfully
+ processed and the section contents were
+ returned.
+
+ @retval EFI_OUT_OF_RESOURCES The system has insufficient
+ resources to process the
+ request.
+
+ @retval EFI_INVALID_PARAMETER The GUID in InputSection does
+ not match this instance of the
+ GUIDed Section Extraction
+ Protocol.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_EXTRACT_GUIDED_SECTION)(
+ IN CONST EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL *This,
+ IN CONST VOID *InputSection,
+ OUT VOID **OutputBuffer,
+ OUT UINTN *OutputSize,
+ OUT UINT32 *AuthenticationStatus
+);
+
+
+/**
+
+ Takes the GUIDed section as input and produces the section
+ stream data. See the ExtractSection() function description.
+
+**/
+struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL {
+ EFI_EXTRACT_GUIDED_SECTION ExtractSection;
+};
+
+//
+// Protocol GUID definition. Each GUIDed section extraction protocol has the
+// same interface but with different GUID. All the GUIDs is defined here.
+// May add multiple GUIDs here.
+//
+#define EFI_CRC32_GUIDED_SECTION_EXTRACTION_PROTOCOL_GUID \
+ { \
+ 0xFC1BCDB0, 0x7D31, 0x49aa, {0x93, 0x6A, 0xA4, 0x60, 0x0D, 0x9D, 0xD0, 0x83 } \
+ }
+
+//
+// may add other GUID here
+//
+extern EFI_GUID gEfiCrc32GuidedSectionExtractionProtocolGuid;
+
+#endif
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