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c1d93242 JY |
1 | /** @file\r |
2 | Implement TPM2 Startup related command.\r | |
3 | \r | |
4 | Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
16 | #include <Library/Tpm2CommandLib.h>\r | |
17 | #include <Library/Tpm2DeviceLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/BaseLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | \r | |
22 | #pragma pack(1)\r | |
23 | \r | |
24 | typedef struct {\r | |
25 | TPM2_COMMAND_HEADER Header;\r | |
26 | TPM_SU StartupType;\r | |
27 | } TPM2_STARTUP_COMMAND;\r | |
28 | \r | |
29 | typedef struct {\r | |
30 | TPM2_RESPONSE_HEADER Header;\r | |
31 | } TPM2_STARTUP_RESPONSE;\r | |
32 | \r | |
33 | typedef struct {\r | |
34 | TPM2_COMMAND_HEADER Header;\r | |
35 | TPM_SU ShutdownType;\r | |
36 | } TPM2_SHUTDOWN_COMMAND;\r | |
37 | \r | |
38 | typedef struct {\r | |
39 | TPM2_RESPONSE_HEADER Header;\r | |
40 | } TPM2_SHUTDOWN_RESPONSE;\r | |
41 | \r | |
42 | #pragma pack()\r | |
43 | \r | |
44 | /**\r | |
45 | Send Startup command to TPM2.\r | |
46 | \r | |
47 | @param[in] StartupType TPM_SU_CLEAR or TPM_SU_STATE\r | |
48 | \r | |
49 | @retval EFI_SUCCESS Operation completed successfully.\r | |
50 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
51 | **/\r | |
52 | EFI_STATUS\r | |
53 | EFIAPI\r | |
54 | Tpm2Startup (\r | |
55 | IN TPM_SU StartupType\r | |
56 | )\r | |
57 | {\r | |
58 | EFI_STATUS Status;\r | |
59 | TPM2_STARTUP_COMMAND Cmd;\r | |
60 | TPM2_STARTUP_RESPONSE Res;\r | |
61 | UINT32 ResultBufSize;\r | |
62 | \r | |
63 | Cmd.Header.tag = SwapBytes16(TPM_ST_NO_SESSIONS);\r | |
64 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
65 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_Startup);\r | |
66 | Cmd.StartupType = SwapBytes16(StartupType);\r | |
67 | \r | |
68 | ResultBufSize = sizeof(Res);\r | |
69 | Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);\r | |
70 | \r | |
71 | return Status;\r | |
72 | }\r | |
73 | \r | |
74 | /**\r | |
75 | Send Shutdown command to TPM2.\r | |
76 | \r | |
77 | @param[in] ShutdownType TPM_SU_CLEAR or TPM_SU_STATE.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS Operation completed successfully.\r | |
80 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
81 | **/\r | |
82 | EFI_STATUS\r | |
83 | EFIAPI\r | |
84 | Tpm2Shutdown (\r | |
85 | IN TPM_SU ShutdownType\r | |
86 | )\r | |
87 | {\r | |
88 | EFI_STATUS Status;\r | |
89 | TPM2_SHUTDOWN_COMMAND Cmd;\r | |
90 | TPM2_SHUTDOWN_RESPONSE Res;\r | |
91 | UINT32 ResultBufSize;\r | |
92 | \r | |
93 | Cmd.Header.tag = SwapBytes16(TPM_ST_NO_SESSIONS);\r | |
94 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
95 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_Shutdown);\r | |
96 | Cmd.ShutdownType = SwapBytes16(ShutdownType);\r | |
97 | \r | |
98 | ResultBufSize = sizeof(Res);\r | |
99 | Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);\r | |
100 | \r | |
101 | return Status;\r | |
102 | }\r |