audk/IntelFrameworkPkg/Include/Ppi/Security.h

/** @file
  This file declares Security Architectural PPI.
  
  This PPI is installed by some platform PEIM that abstracts the security policy to the PEI
  Foundation, namely the case of a PEIM's authentication state being returned during the PEI section
  extraction process.
  
  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.

  @par Revision Reference:
  This PPI is defined in PEI CIS.
  Version 0.91.

**/

#ifndef __SECURITY_PPI_H__
#define __SECURITY_PPI_H__

#define EFI_PEI_SECURITY_PPI_GUID \
  { \
    0x1388066e, 0x3a57, 0x4efa, {0x98, 0xf3, 0xc1, 0x2f, 0x3a, 0x95, 0x8a, 0x29 } \
  }

typedef struct _EFI_PEI_SECURITY_PPI  EFI_PEI_SECURITY_PPI;

/**
  Allows the platform builder to implement a security policy in response
  to varying file authentication states.

  @param  PeiServices             Pointer to the PEI Services Table.
  @param  This                    Interface pointer that implements the particular EFI_PEI_SECURITY_PPI instance.
  @param  AuthenticationStatus    Status returned by the verification service as part of section extraction.
  @param  FfsFileHeader           Pointer to the file under review.
  @param  DeferExecution          Pointer to a variable that alerts the PEI Foundation to defer execution of a PEIM.

  @retval EFI_SUCCESS             The service performed its action successfully.
  @retval EFI_SECURITY_VIOLATION  The object cannot be trusted
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_PEI_SECURITY_AUTHENTICATION_STATE)(
  IN EFI_PEI_SERVICES             **PeiServices,
  IN EFI_PEI_SECURITY_PPI         *This,
  IN UINT32                       AuthenticationStatus,
  IN EFI_FFS_FILE_HEADER          *FfsFileHeader,
  IN OUT BOOLEAN                  *DeferExecution
  );

//
// PPI interface structure of Security PPI
//
struct _EFI_PEI_SECURITY_PPI {
  FRAMEWORK_EFI_PEI_SECURITY_AUTHENTICATION_STATE  AuthenticationState;
};

extern EFI_GUID gEfiPeiSecurityPpiGuid;

#endif