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c1d93242 | 1 | /** @file\r |
f9fd0c21 | 2 | Implement TPM2 Miscellaneous related command.\r |
c1d93242 | 3 | \r |
7ae130da | 4 | Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>\r |
289b714b | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
c1d93242 JY |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
10 | #include <Library/Tpm2CommandLib.h>\r | |
11 | #include <Library/Tpm2DeviceLib.h>\r | |
12 | #include <Library/BaseMemoryLib.h>\r | |
13 | #include <Library/BaseLib.h>\r | |
14 | #include <Library/DebugLib.h>\r | |
15 | \r | |
16 | #pragma pack(1)\r | |
17 | \r | |
18 | typedef struct {\r | |
19 | TPM2_COMMAND_HEADER Header;\r | |
20 | TPMI_RH_HIERARCHY_AUTH AuthHandle;\r | |
21 | UINT32 AuthSessionSize;\r | |
22 | TPMS_AUTH_COMMAND AuthSession;\r | |
23 | UINT32 AlgorithmSet;\r | |
24 | } TPM2_SET_ALGORITHM_SET_COMMAND;\r | |
25 | \r | |
26 | typedef struct {\r | |
27 | TPM2_RESPONSE_HEADER Header;\r | |
28 | UINT32 AuthSessionSize;\r | |
29 | TPMS_AUTH_RESPONSE AuthSession;\r | |
30 | } TPM2_SET_ALGORITHM_SET_RESPONSE;\r | |
31 | \r | |
32 | #pragma pack()\r | |
33 | \r | |
34 | /**\r | |
35 | This command allows the platform to change the set of algorithms that are used by the TPM.\r | |
36 | The algorithmSet setting is a vendor-dependent value.\r | |
37 | \r | |
38 | @param[in] AuthHandle TPM_RH_PLATFORM\r | |
39 | @param[in] AuthSession Auth Session context\r | |
40 | @param[in] AlgorithmSet A TPM vendor-dependent value indicating the\r | |
41 | algorithm set selection\r | |
42 | \r | |
43 | @retval EFI_SUCCESS Operation completed successfully.\r | |
44 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
45 | **/\r | |
46 | EFI_STATUS\r | |
47 | EFIAPI\r | |
48 | Tpm2SetAlgorithmSet (\r | |
49 | IN TPMI_RH_PLATFORM AuthHandle,\r | |
50 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
51 | IN UINT32 AlgorithmSet\r | |
52 | )\r | |
53 | {\r | |
54 | EFI_STATUS Status;\r | |
55 | TPM2_SET_ALGORITHM_SET_COMMAND SendBuffer;\r | |
56 | TPM2_SET_ALGORITHM_SET_RESPONSE RecvBuffer;\r | |
57 | UINT32 SendBufferSize;\r | |
58 | UINT32 RecvBufferSize;\r | |
59 | UINT8 *Buffer;\r | |
60 | UINT32 SessionInfoSize;\r | |
61 | \r | |
62 | //\r | |
63 | // Construct command\r | |
64 | //\r | |
65 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
66 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_SetAlgorithmSet);\r | |
67 | \r | |
68 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
69 | \r | |
70 | //\r | |
71 | // Add in Auth session\r | |
72 | //\r | |
73 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
74 | \r | |
75 | // sessionInfoSize\r | |
76 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
77 | Buffer += SessionInfoSize;\r | |
78 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
79 | \r | |
80 | //\r | |
81 | // Real data\r | |
82 | //\r | |
83 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(AlgorithmSet));\r | |
84 | Buffer += sizeof(UINT32);\r | |
85 | \r | |
86 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r | |
87 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
88 | \r | |
89 | //\r | |
90 | // send Tpm command\r | |
91 | //\r | |
92 | RecvBufferSize = sizeof (RecvBuffer);\r | |
93 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
94 | if (EFI_ERROR (Status)) {\r | |
7ae130da | 95 | goto Done;\r |
c1d93242 JY |
96 | }\r |
97 | \r | |
98 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
99 | DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
7ae130da JY |
100 | Status = EFI_DEVICE_ERROR;\r |
101 | goto Done;\r | |
c1d93242 JY |
102 | }\r |
103 | if (SwapBytes32(RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
104 | DEBUG ((EFI_D_ERROR, "Tpm2SetAlgorithmSet - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
7ae130da JY |
105 | Status = EFI_DEVICE_ERROR;\r |
106 | goto Done;\r | |
c1d93242 JY |
107 | }\r |
108 | \r | |
7ae130da JY |
109 | Done:\r |
110 | //\r | |
111 | // Clear AuthSession Content\r | |
112 | //\r | |
113 | ZeroMem (&SendBuffer, sizeof(SendBuffer));\r | |
114 | ZeroMem (&RecvBuffer, sizeof(RecvBuffer));\r | |
115 | return Status;\r | |
c1d93242 | 116 | }\r |