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92ca0c67 JY |
1 | /** @file\r |
2 | Implement TPM1.2 NV storage related command.\r | |
3 | \r | |
b3548d32 | 4 | Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved. <BR>\r |
8b1331df | 5 | (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r |
289b714b | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
92ca0c67 JY |
7 | \r |
8 | **/\r | |
9 | \r | |
83b9662f | 10 | #include <PiPei.h>\r |
92ca0c67 | 11 | #include <Library/Tpm12CommandLib.h>\r |
83b9662f | 12 | #include <Library/BaseLib.h>\r |
92ca0c67 | 13 | #include <Library/DebugLib.h>\r |
83b9662f MK |
14 | #include <Library/BaseMemoryLib.h>\r |
15 | #include <Library/Tpm12DeviceLib.h>\r | |
92ca0c67 JY |
16 | \r |
17 | //\r | |
83b9662f | 18 | // Max TPM NV value length\r |
92ca0c67 | 19 | //\r |
83b9662f | 20 | #define TPMNVVALUELENGTH 1024\r |
92ca0c67 JY |
21 | \r |
22 | #pragma pack(1)\r | |
23 | \r | |
24 | typedef struct {\r | |
c411b485 MK |
25 | TPM_RQU_COMMAND_HDR Hdr;\r |
26 | TPM12_NV_DATA_PUBLIC PubInfo;\r | |
27 | TPM_ENCAUTH EncAuth;\r | |
92ca0c67 JY |
28 | } TPM_CMD_NV_DEFINE_SPACE;\r |
29 | \r | |
92ca0c67 | 30 | typedef struct {\r |
c411b485 MK |
31 | TPM_RQU_COMMAND_HDR Hdr;\r |
32 | TPM_NV_INDEX NvIndex;\r | |
33 | UINT32 Offset;\r | |
34 | UINT32 DataSize;\r | |
92ca0c67 JY |
35 | } TPM_CMD_NV_READ_VALUE;\r |
36 | \r | |
37 | typedef struct {\r | |
c411b485 MK |
38 | TPM_RSP_COMMAND_HDR Hdr;\r |
39 | UINT32 DataSize;\r | |
40 | UINT8 Data[TPMNVVALUELENGTH];\r | |
92ca0c67 JY |
41 | } TPM_RSP_NV_READ_VALUE;\r |
42 | \r | |
43 | typedef struct {\r | |
c411b485 MK |
44 | TPM_RQU_COMMAND_HDR Hdr;\r |
45 | TPM_NV_INDEX NvIndex;\r | |
46 | UINT32 Offset;\r | |
47 | UINT32 DataSize;\r | |
48 | UINT8 Data[TPMNVVALUELENGTH];\r | |
92ca0c67 JY |
49 | } TPM_CMD_NV_WRITE_VALUE;\r |
50 | \r | |
92ca0c67 JY |
51 | #pragma pack()\r |
52 | \r | |
53 | /**\r | |
54 | Send NV DefineSpace command to TPM1.2.\r | |
b3548d32 | 55 | \r |
92ca0c67 JY |
56 | @param PubInfo The public parameters of the NV area.\r |
57 | @param EncAuth The encrypted AuthData, only valid if the attributes require subsequent authorization.\r | |
58 | \r | |
59 | @retval EFI_SUCCESS Operation completed successfully.\r | |
60 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
61 | **/\r | |
62 | EFI_STATUS\r | |
63 | EFIAPI\r | |
64 | Tpm12NvDefineSpace (\r | |
65 | IN TPM12_NV_DATA_PUBLIC *PubInfo,\r | |
66 | IN TPM_ENCAUTH *EncAuth\r | |
67 | )\r | |
68 | {\r | |
83b9662f MK |
69 | EFI_STATUS Status;\r |
70 | TPM_CMD_NV_DEFINE_SPACE Command;\r | |
71 | TPM_RSP_COMMAND_HDR Response;\r | |
72 | UINT32 Length;\r | |
92ca0c67 JY |
73 | \r |
74 | //\r | |
75 | // send Tpm command TPM_ORD_NV_DefineSpace\r | |
76 | //\r | |
c411b485 MK |
77 | Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
78 | Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r | |
79 | Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_DefineSpace);\r | |
80 | Command.PubInfo.tag = SwapBytes16 (PubInfo->tag);\r | |
81 | Command.PubInfo.nvIndex = SwapBytes32 (PubInfo->nvIndex);\r | |
82 | Command.PubInfo.pcrInfoRead.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoRead.pcrSelection.sizeOfSelect);\r | |
83 | Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[0];\r | |
84 | Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[1];\r | |
85 | Command.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[2];\r | |
86 | Command.PubInfo.pcrInfoRead.localityAtRelease = PubInfo->pcrInfoRead.localityAtRelease;\r | |
87 | CopyMem (&Command.PubInfo.pcrInfoRead.digestAtRelease, &PubInfo->pcrInfoRead.digestAtRelease, sizeof (PubInfo->pcrInfoRead.digestAtRelease));\r | |
83b9662f MK |
88 | Command.PubInfo.pcrInfoWrite.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoWrite.pcrSelection.sizeOfSelect);\r |
89 | Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[0];\r | |
90 | Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[1];\r | |
91 | Command.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[2];\r | |
92 | Command.PubInfo.pcrInfoWrite.localityAtRelease = PubInfo->pcrInfoWrite.localityAtRelease;\r | |
c411b485 | 93 | CopyMem (&Command.PubInfo.pcrInfoWrite.digestAtRelease, &PubInfo->pcrInfoWrite.digestAtRelease, sizeof (PubInfo->pcrInfoWrite.digestAtRelease));\r |
83b9662f MK |
94 | Command.PubInfo.permission.tag = SwapBytes16 (PubInfo->permission.tag);\r |
95 | Command.PubInfo.permission.attributes = SwapBytes32 (PubInfo->permission.attributes);\r | |
96 | Command.PubInfo.bReadSTClear = PubInfo->bReadSTClear;\r | |
97 | Command.PubInfo.bWriteSTClear = PubInfo->bWriteSTClear;\r | |
98 | Command.PubInfo.bWriteDefine = PubInfo->bWriteDefine;\r | |
99 | Command.PubInfo.dataSize = SwapBytes32 (PubInfo->dataSize);\r | |
c411b485 | 100 | CopyMem (&Command.EncAuth, EncAuth, sizeof (*EncAuth));\r |
83b9662f MK |
101 | Length = sizeof (Response);\r |
102 | Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r | |
92ca0c67 JY |
103 | if (EFI_ERROR (Status)) {\r |
104 | return Status;\r | |
105 | }\r | |
c411b485 | 106 | \r |
83b9662f MK |
107 | DEBUG ((DEBUG_INFO, "Tpm12NvDefineSpace - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));\r |
108 | switch (SwapBytes32 (Response.returnCode)) {\r | |
c411b485 MK |
109 | case TPM_SUCCESS:\r |
110 | return EFI_SUCCESS;\r | |
111 | default:\r | |
112 | return EFI_DEVICE_ERROR;\r | |
92ca0c67 | 113 | }\r |
92ca0c67 JY |
114 | }\r |
115 | \r | |
116 | /**\r | |
117 | Send NV ReadValue command to TPM1.2.\r | |
118 | \r | |
119 | @param NvIndex The index of the area to set.\r | |
120 | @param Offset The offset into the area.\r | |
121 | @param DataSize The size of the data area.\r | |
122 | @param Data The data to set the area to.\r | |
123 | \r | |
124 | @retval EFI_SUCCESS Operation completed successfully.\r | |
125 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
126 | **/\r | |
127 | EFI_STATUS\r | |
128 | EFIAPI\r | |
129 | Tpm12NvReadValue (\r | |
83b9662f MK |
130 | IN TPM_NV_INDEX NvIndex,\r |
131 | IN UINT32 Offset,\r | |
132 | IN OUT UINT32 *DataSize,\r | |
133 | OUT UINT8 *Data\r | |
92ca0c67 JY |
134 | )\r |
135 | {\r | |
83b9662f MK |
136 | EFI_STATUS Status;\r |
137 | TPM_CMD_NV_READ_VALUE Command;\r | |
138 | TPM_RSP_NV_READ_VALUE Response;\r | |
139 | UINT32 Length;\r | |
92ca0c67 JY |
140 | \r |
141 | //\r | |
142 | // send Tpm command TPM_ORD_NV_ReadValue\r | |
143 | //\r | |
83b9662f MK |
144 | Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
145 | Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r | |
146 | Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_ReadValue);\r | |
147 | Command.NvIndex = SwapBytes32 (NvIndex);\r | |
148 | Command.Offset = SwapBytes32 (Offset);\r | |
149 | Command.DataSize = SwapBytes32 (*DataSize);\r | |
c411b485 MK |
150 | Length = sizeof (Response);\r |
151 | Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r | |
92ca0c67 JY |
152 | if (EFI_ERROR (Status)) {\r |
153 | return Status;\r | |
154 | }\r | |
c411b485 | 155 | \r |
83b9662f MK |
156 | DEBUG ((DEBUG_INFO, "Tpm12NvReadValue - ReturnCode = %x\n", SwapBytes32 (Response.Hdr.returnCode)));\r |
157 | switch (SwapBytes32 (Response.Hdr.returnCode)) {\r | |
c411b485 MK |
158 | case TPM_SUCCESS:\r |
159 | break;\r | |
160 | default:\r | |
161 | return EFI_DEVICE_ERROR;\r | |
92ca0c67 JY |
162 | }\r |
163 | \r | |
164 | //\r | |
165 | // Return the response\r | |
166 | //\r | |
83b9662f MK |
167 | if (SwapBytes32 (Response.DataSize) > *DataSize) {\r |
168 | return EFI_BUFFER_TOO_SMALL;\r | |
169 | }\r | |
c411b485 | 170 | \r |
83b9662f MK |
171 | *DataSize = SwapBytes32 (Response.DataSize);\r |
172 | ZeroMem (Data, *DataSize);\r | |
173 | CopyMem (Data, &Response.Data, *DataSize);\r | |
92ca0c67 JY |
174 | \r |
175 | return EFI_SUCCESS;\r | |
176 | }\r | |
177 | \r | |
178 | /**\r | |
179 | Send NV WriteValue command to TPM1.2.\r | |
b3548d32 | 180 | \r |
92ca0c67 JY |
181 | @param NvIndex The index of the area to set.\r |
182 | @param Offset The offset into the NV Area.\r | |
183 | @param DataSize The size of the data parameter.\r | |
184 | @param Data The data to set the area to.\r | |
185 | \r | |
186 | @retval EFI_SUCCESS Operation completed successfully.\r | |
187 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
188 | **/\r | |
189 | EFI_STATUS\r | |
190 | EFIAPI\r | |
191 | Tpm12NvWriteValue (\r | |
83b9662f MK |
192 | IN TPM_NV_INDEX NvIndex,\r |
193 | IN UINT32 Offset,\r | |
194 | IN UINT32 DataSize,\r | |
195 | IN UINT8 *Data\r | |
92ca0c67 JY |
196 | )\r |
197 | {\r | |
83b9662f MK |
198 | EFI_STATUS Status;\r |
199 | TPM_CMD_NV_WRITE_VALUE Command;\r | |
8b1331df | 200 | UINT32 CommandLength;\r |
83b9662f | 201 | TPM_RSP_COMMAND_HDR Response;\r |
8b1331df | 202 | UINT32 ResponseLength;\r |
83b9662f MK |
203 | \r |
204 | if (DataSize > sizeof (Command.Data)) {\r | |
92ca0c67 JY |
205 | return EFI_UNSUPPORTED;\r |
206 | }\r | |
207 | \r | |
208 | //\r | |
209 | // send Tpm command TPM_ORD_NV_WriteValue\r | |
210 | //\r | |
83b9662f | 211 | Command.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r |
c411b485 | 212 | CommandLength = sizeof (Command) - sizeof (Command.Data) + DataSize;\r |
8b1331df | 213 | Command.Hdr.paramSize = SwapBytes32 (CommandLength);\r |
83b9662f MK |
214 | Command.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_WriteValue);\r |
215 | Command.NvIndex = SwapBytes32 (NvIndex);\r | |
216 | Command.Offset = SwapBytes32 (Offset);\r | |
217 | Command.DataSize = SwapBytes32 (DataSize);\r | |
218 | CopyMem (Command.Data, Data, DataSize);\r | |
8b1331df | 219 | ResponseLength = sizeof (Response);\r |
c411b485 | 220 | Status = Tpm12SubmitCommand (CommandLength, (UINT8 *)&Command, &ResponseLength, (UINT8 *)&Response);\r |
92ca0c67 JY |
221 | if (EFI_ERROR (Status)) {\r |
222 | return Status;\r | |
223 | }\r | |
c411b485 | 224 | \r |
d6b926e7 | 225 | DEBUG ((DEBUG_INFO, "Tpm12NvWriteValue - ReturnCode = %x\n", SwapBytes32 (Response.returnCode)));\r |
83b9662f | 226 | switch (SwapBytes32 (Response.returnCode)) {\r |
c411b485 MK |
227 | case TPM_SUCCESS:\r |
228 | return EFI_SUCCESS;\r | |
229 | default:\r | |
230 | return EFI_DEVICE_ERROR;\r | |
92ca0c67 | 231 | }\r |
92ca0c67 | 232 | }\r |