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c1d93242 JY |
1 | /** @file\r |
2 | Implement TPM2 Miscellanenous related command.\r | |
3 | \r | |
7ae130da | 4 | Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>\r |
c1d93242 JY |
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 | TPMI_RH_HIERARCHY_AUTH AuthHandle;\r | |
27 | UINT32 AuthSessionSize;\r | |
28 | TPMS_AUTH_COMMAND AuthSession;\r | |
29 | UINT32 AlgorithmSet;\r | |
30 | } TPM2_SET_ALGORITHM_SET_COMMAND;\r | |
31 | \r | |
32 | typedef struct {\r | |
33 | TPM2_RESPONSE_HEADER Header;\r | |
34 | UINT32 AuthSessionSize;\r | |
35 | TPMS_AUTH_RESPONSE AuthSession;\r | |
36 | } TPM2_SET_ALGORITHM_SET_RESPONSE;\r | |
37 | \r | |
38 | #pragma pack()\r | |
39 | \r | |
40 | /**\r | |
41 | This command allows the platform to change the set of algorithms that are used by the TPM.\r | |
42 | The algorithmSet setting is a vendor-dependent value.\r | |
43 | \r | |
44 | @param[in] AuthHandle TPM_RH_PLATFORM\r | |
45 | @param[in] AuthSession Auth Session context\r | |
46 | @param[in] AlgorithmSet A TPM vendor-dependent value indicating the\r | |
47 | algorithm set selection\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 | Tpm2SetAlgorithmSet (\r | |
55 | IN TPMI_RH_PLATFORM AuthHandle,\r | |
56 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
57 | IN UINT32 AlgorithmSet\r | |
58 | )\r | |
59 | {\r | |
60 | EFI_STATUS Status;\r | |
61 | TPM2_SET_ALGORITHM_SET_COMMAND SendBuffer;\r | |
62 | TPM2_SET_ALGORITHM_SET_RESPONSE RecvBuffer;\r | |
63 | UINT32 SendBufferSize;\r | |
64 | UINT32 RecvBufferSize;\r | |
65 | UINT8 *Buffer;\r | |
66 | UINT32 SessionInfoSize;\r | |
67 | \r | |
68 | //\r | |
69 | // Construct command\r | |
70 | //\r | |
71 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
72 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_SetAlgorithmSet);\r | |
73 | \r | |
74 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
75 | \r | |
76 | //\r | |
77 | // Add in Auth session\r | |
78 | //\r | |
79 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
80 | \r | |
81 | // sessionInfoSize\r | |
82 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
83 | Buffer += SessionInfoSize;\r | |
84 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
85 | \r | |
86 | //\r | |
87 | // Real data\r | |
88 | //\r | |
89 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(AlgorithmSet));\r | |
90 | Buffer += sizeof(UINT32);\r | |
91 | \r | |
92 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r | |
93 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
94 | \r | |
95 | //\r | |
96 | // send Tpm command\r | |
97 | //\r | |
98 | RecvBufferSize = sizeof (RecvBuffer);\r | |
99 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
100 | if (EFI_ERROR (Status)) {\r | |
7ae130da | 101 | goto Done;\r |
c1d93242 JY |
102 | }\r |
103 | \r | |
104 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
105 | DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
7ae130da JY |
106 | Status = EFI_DEVICE_ERROR;\r |
107 | goto Done;\r | |
c1d93242 JY |
108 | }\r |
109 | if (SwapBytes32(RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
110 | DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
7ae130da JY |
111 | Status = EFI_DEVICE_ERROR;\r |
112 | goto Done;\r | |
c1d93242 JY |
113 | }\r |
114 | \r | |
7ae130da JY |
115 | Done:\r |
116 | //\r | |
117 | // Clear AuthSession Content\r | |
118 | //\r | |
119 | ZeroMem (&SendBuffer, sizeof(SendBuffer));\r | |
120 | ZeroMem (&RecvBuffer, sizeof(RecvBuffer));\r | |
121 | return Status;\r | |
c1d93242 | 122 | }\r |