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607599bf | 1 | /** @file\r |
07309c3d | 2 | This library is intended to be used by BDS modules.\r |
607599bf | 3 | This library will lock TPM after executing TPM request.\r |
4 | \r | |
b3548d32 LG |
5 | Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
607599bf | 9 | http://opensource.org/licenses/bsd-license.php\r |
10 | \r | |
b3548d32 | 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
607599bf | 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #ifndef _TCG_PHYSICAL_PRESENCE_LIB_H_\r | |
17 | #define _TCG_PHYSICAL_PRESENCE_LIB_H_\r | |
18 | \r | |
19 | /**\r | |
20 | Check and execute the pending TPM request and Lock TPM.\r | |
21 | \r | |
b3548d32 | 22 | The TPM request may come from OS or BIOS. This API will display request information and wait\r |
607599bf | 23 | for user confirmation if TPM request exists. The TPM request will be sent to TPM device after\r |
b3548d32 | 24 | the TPM request is confirmed, and one or more reset may be required to make TPM request to\r |
607599bf | 25 | take effect. At last, it will lock TPM to prevent TPM state change by malware.\r |
b3548d32 | 26 | \r |
607599bf | 27 | This API should be invoked after console in and console out are all ready as they are required\r |
b3548d32 | 28 | to display request information and get user input to confirm the request. This API should also\r |
607599bf | 29 | be invoked as early as possible as TPM is locked in this function.\r |
b3548d32 | 30 | \r |
607599bf | 31 | **/\r |
32 | VOID\r | |
33 | EFIAPI\r | |
34 | TcgPhysicalPresenceLibProcessRequest (\r | |
35 | VOID\r | |
36 | );\r | |
37 | \r | |
48211402 | 38 | /**\r |
39 | Check if the pending TPM request needs user input to confirm.\r | |
40 | \r | |
41 | The TPM request may come from OS. This API will check if TPM request exists and need user\r | |
42 | input to confirmation.\r | |
b3548d32 | 43 | \r |
48211402 | 44 | @retval TRUE TPM needs input to confirm user physical presence.\r |
45 | @retval FALSE TPM doesn't need input to confirm user physical presence.\r | |
46 | \r | |
47 | **/\r | |
48 | BOOLEAN\r | |
49 | EFIAPI\r | |
50 | TcgPhysicalPresenceLibNeedUserConfirm(\r | |
51 | VOID\r | |
52 | );\r | |
53 | \r | |
607599bf | 54 | #endif\r |