SecurityPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / SecurityPkg / Include / Library / PlatformSecureLib.h

/** @file\r
  Provides a secure platform-specific method to detect physically present user.\r
\r
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __PLATFORM_SECURE_LIB_H__\r
#define __PLATFORM_SECURE_LIB_H__\r
\r
\r
/**\r
\r
  This function provides a platform-specific method to detect whether the platform\r
  is operating by a physically present user.\r
\r
  Programmatic changing of platform security policy (such as disable Secure Boot,\r
  or switch between Standard/Custom Secure Boot mode) MUST NOT be possible during\r
  Boot Services or after exiting EFI Boot Services. Only a physically present user\r
  is allowed to perform these operations.\r
\r
  NOTE THAT: This function cannot depend on any EFI Variable Service since they are\r
  not available when this function is called in AuthenticateVariable driver.\r
\r
  @retval  TRUE       The platform is operated by a physically present user.\r
  @retval  FALSE      The platform is NOT operated by a physically present user.\r
\r
**/\r
BOOLEAN\r
EFIAPI\r
UserPhysicalPresent (\r
  VOID\r
  );\r
\r
#endif\r