Fix compatibility issue when using IPF image with PE32 magic value in the OptionalHeader.
[mirror_edk2.git] / SecurityPkg / Library / PlatformSecureLibNull / PlatformSecureLibNull.c
CommitLineData
0c18794e 1/** @file\r
a7450323 2 NULL PlatformSecureLib instance does NOT really detect whether a physical present \r
3 user exists but return TRUE directly. This instance can be used to verify security\r
4 related features during platform enabling and development. It should be replaced\r
5 by a platform-specific method(e.g. Button pressed) in a real platform for product.\r
0c18794e 6\r
ecc722ad 7Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>\r
0c18794e 8This program and the accompanying materials \r
9are licensed and made available under the terms and conditions of the BSD License \r
10which accompanies this distribution. The full text of the license may be found at \r
11http://opensource.org/licenses/bsd-license.php\r
12\r
13THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
14WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
15\r
16**/\r
17\r
18/**\r
19\r
ecc722ad 20 This function provides a platform-specific method to detect whether the platform\r
21 is operating by a physically present user. \r
22\r
23 Programmatic changing of platform security policy (such as disable Secure Boot,\r
24 or switch between Standard/Custom Secure Boot mode) MUST NOT be possible during\r
25 Boot Services or after exiting EFI Boot Services. Only a physically present user\r
26 is allowed to perform these operations.\r
27\r
0c18794e 28 NOTE THAT: This function cannot depend on any EFI Variable Service since they are\r
29 not available when this function is called in AuthenticateVariable driver.\r
ecc722ad 30 \r
31 @retval TRUE The platform is operated by a physically present user.\r
32 @retval FALSE The platform is NOT operated by a physically present user.\r
0c18794e 33\r
34**/\r
35BOOLEAN\r
36EFIAPI\r
ecc722ad 37UserPhysicalPresent (\r
0c18794e 38 VOID\r
39 )\r
40{\r
3c48e853 41 return TRUE;\r
0c18794e 42}\r