License header updated to match correct format.

[mirror_edk2.git] / BaseTools / Source / C / Include / Protocol / GuidedSectionExtraction.h

/** @file\r
  This file declares GUIDed section extraction protocol.\r
\r
  This interface provides a means of decoding a GUID defined encapsulation \r
  section. There may be multiple different GUIDs associated with the GUIDed\r
  section extraction protocol. That is, all instances of the GUIDed section\r
  extraction protocol must have the same interface structure.\r
  \r
  @par Revision Reference: PI\r
  Version 1.00.\r
  \r
  Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r
\r
  This program and the accompanying materials are licensed and made available\r
  under the terms and conditions of the BSD License which accompanies this\r
  distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL_H__\r
#define __EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL_H__\r
\r
//\r
// Forward reference for pure ANSI compatability\r
\r
typedef struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL;\r
\r
\r
/**\r
  The ExtractSection() function processes the input section and\r
  allocates a buffer from the pool in which it returns the section\r
  contents. If the section being extracted contains\r
  authentication information (the section's\r
  GuidedSectionHeader.Attributes field has the\r
  EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit set), the values\r
  returned in AuthenticationStatus must reflect the results of\r
  the authentication operation. Depending on the algorithm and\r
  size of the encapsulated data, the time that is required to do\r
  a full authentication may be prohibitively long for some\r
  classes of systems. To indicate this, use\r
  EFI_SECURITY_POLICY_PROTOCOL_GUID, which may be published by\r
  the security policy driver (see the Platform Initialization\r
  Driver Execution Environment Core Interface Specification for\r
  more details and the GUID definition). If the\r
  EFI_SECURITY_POLICY_PROTOCOL_GUID exists in the handle\r
  database, then, if possible, full authentication should be\r
  skipped and the section contents simply returned in the\r
  OutputBuffer. In this case, the\r
  EFI_AUTH_STATUS_PLATFORM_OVERRIDE bit AuthenticationStatus\r
  must be set on return. ExtractSection() is callable only from\r
  TPL_NOTIFY and below. Behavior of ExtractSection() at any\r
  EFI_TPL above TPL_NOTIFY is undefined. Type EFI_TPL is\r
  defined in RaiseTPL() in the UEFI 2.0 specification.\r
\r
  \r
  @param This   Indicates the\r
                EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL instance.\r
  \r
  @param InputSection Buffer containing the input GUIDed section\r
                      to be processed. OutputBuffer OutputBuffer\r
                      is allocated from boot services pool\r
                      memory and contains the new section\r
                      stream. The caller is responsible for\r
                      freeing this buffer.\r
\r
  @param OutputSize   A pointer to a caller-allocated UINTN in\r
                      which the size of OutputBuffer allocation\r
                      is stored. If the function returns\r
                      anything other than EFI_SUCCESS, the value\r
                      of OutputSize is undefined.\r
\r
  @param AuthenticationStatus A pointer to a caller-allocated\r
                              UINT32 that indicates the\r
                              authentication status of the\r
                              output buffer. If the input\r
                              section's\r
                              GuidedSectionHeader.Attributes\r
                              field has the\r
                              EFI_GUIDED_SECTION_AUTH_STATUS_VAL\r
                              bit as clear, AuthenticationStatus\r
                              must return zero. Both local bits\r
                              (19:16) and aggregate bits (3:0)\r
                              in AuthenticationStatus are\r
                              returned by ExtractSection().\r
                              These bits reflect the status of\r
                              the extraction operation. The bit\r
                              pattern in both regions must be\r
                              the same, as the local and\r
                              aggregate authentication statuses\r
                              have equivalent meaning at this\r
                              level. If the function returns\r
                              anything other than EFI_SUCCESS,\r
                              the value of AuthenticationStatus\r
                              is undefined.\r
\r
\r
  @retval EFI_SUCCESS The InputSection was successfully\r
                      processed and the section contents were\r
                      returned.\r
\r
  @retval EFI_OUT_OF_RESOURCES  The system has insufficient\r
                                resources to process the\r
                                request.\r
\r
  @retval EFI_INVALID_PARAMETER The GUID in InputSection does\r
                                not match this instance of the\r
                                GUIDed Section Extraction\r
                                Protocol.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_EXTRACT_GUIDED_SECTION)(\r
  IN CONST  EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL  *This,\r
  IN CONST  VOID                                    *InputSection,\r
  OUT       VOID                                    **OutputBuffer,\r
  OUT       UINTN                                   *OutputSize,\r
  OUT       UINT32                                  *AuthenticationStatus\r
);\r
\r
\r
/**\r
  \r
  Takes the GUIDed section as input and produces the section\r
  stream data. See the ExtractSection() function description.\r
\r
**/\r
struct _EFI_GUIDED_SECTION_EXTRACTION_PROTOCOL {\r
  EFI_EXTRACT_GUIDED_SECTION  ExtractSection;\r
};\r
\r
//\r
// Protocol GUID definition. Each GUIDed section extraction protocol has the\r
// same interface but with different GUID. All the GUIDs is defined here.\r
// May add multiple GUIDs here.\r
//\r
#define EFI_CRC32_GUIDED_SECTION_EXTRACTION_PROTOCOL_GUID \\r
  { \\r
    0xFC1BCDB0, 0x7D31, 0x49aa, {0x93, 0x6A, 0xA4, 0x60, 0x0D, 0x9D, 0xD0, 0x83 } \\r
  }\r
\r
//\r
// may add other GUID here\r
//\r
extern EFI_GUID gEfiCrc32GuidedSectionExtractionProtocolGuid;\r
\r
#endif\r