IntelFrameworkPkg/Include/Ppi/Security.h

   1 /** @file
   2   This file declares Security Architectural PPI.
   3
   4   This PPI is installed by some platform PEIM that abstracts the security policy to the PEI
   5   Foundation, namely the case of a PEIM's authentication state being returned during the PEI section
   6   extraction process.
   7
   8   Copyright (c) 2006, Intel Corporation
   9   All rights reserved. This program and the accompanying materials
  10   are licensed and made available under the terms and conditions of the BSD License
  11   which accompanies this distribution.  The full text of the license may be found at
  12   http://opensource.org/licenses/bsd-license.php
  13
  14   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  15   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  16
  17   Module Name:  Security.h
  18
  19   @par Revision Reference:
  20   This PPI is defined in PEI CIS.
  21   Version 0.91.
  22
  23 **/
  24
  25 #ifndef __SECURITY_PPI_H__
  26 #define __SECURITY_PPI_H__
  27
  28 #include <PiPei.h>
  29
  30 #define EFI_PEI_SECURITY_PPI_GUID \
  31   { \
  32     0x1388066e, 0x3a57, 0x4efa, {0x98, 0xf3, 0xc1, 0x2f, 0x3a, 0x95, 0x8a, 0x29 } \
  33   }
  34
  35 typedef struct _EFI_PEI_SECURITY_PPI  EFI_PEI_SECURITY_PPI;
  36
  37 /**
  38   Allows the platform builder to implement a security policy in response
  39   to varying file authentication states.
  40
  41   @param  PeiServices             Pointer to the PEI Services Table.
  42   @param  This                    Interface pointer that implements the particular EFI_PEI_SECURITY_PPI instance.
  43   @param  AuthenticationStatus    Status returned by the verification service as part of section extraction.
  44   @param  FfsFileHeader           Pointer to the file under review.
  45   @param  DeferExecution          Pointer to a variable that alerts the PEI Foundation to defer execution of a PEIM.
  46
  47   @retval EFI_SUCCESS             The service performed its action successfully.
  48   @retval EFI_SECURITY_VIOLATION  The object cannot be trusted
  49 **/
  50 typedef
  51 EFI_STATUS
  52 (EFIAPI *EFI_PEI_SECURITY_AUTHENTICATION_STATE)(
  53   IN EFI_PEI_SERVICES             **PeiServices,
  54   IN EFI_PEI_SECURITY_PPI         *This,
  55   IN UINT32                       AuthenticationStatus,
  56   IN EFI_FFS_FILE_HEADER          *FfsFileHeader,
  57   IN OUT BOOLEAN                  *DeferExecution
  58   );
  59
  60 //
  61 // PPI interface structure of Security PPI
  62 //
  63 struct _EFI_PEI_SECURITY_PPI {
  64   EFI_PEI_SECURITY_AUTHENTICATION_STATE  AuthenticationState;
  65 };
  66
  67 extern EFI_GUID gEfiPeiSecurityPpiGuid;
  68
  69 #endif