]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Implement TPM1.2 NV storage related command.\r | |
3 | \r | |
4 | Copyright (c) 2015, 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 <Uefi.h>\r | |
16 | #include <IndustryStandard/Tpm12.h>\r | |
17 | #include <Library/BaseMemoryLib.h>\r | |
18 | #include <Library/BaseLib.h>\r | |
19 | #include <Library/Tpm12DeviceLib.h>\r | |
20 | #include <Library/Tpm12CommandLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | \r | |
23 | //\r | |
24 | // Max TPM command/reponse length\r | |
25 | //\r | |
26 | #define TPMCMDBUFLENGTH 1024\r | |
27 | \r | |
28 | #pragma pack(1)\r | |
29 | \r | |
30 | typedef struct {\r | |
31 | TPM_RQU_COMMAND_HDR Hdr;\r | |
32 | TPM12_NV_DATA_PUBLIC PubInfo;\r | |
33 | TPM_ENCAUTH EncAuth;\r | |
34 | } TPM_CMD_NV_DEFINE_SPACE;\r | |
35 | \r | |
36 | typedef struct {\r | |
37 | TPM_RSP_COMMAND_HDR Hdr;\r | |
38 | } TPM_RSP_NV_DEFINE_SPACE;\r | |
39 | \r | |
40 | typedef struct {\r | |
41 | TPM_RQU_COMMAND_HDR Hdr;\r | |
42 | TPM_NV_INDEX NvIndex;\r | |
43 | UINT32 Offset;\r | |
44 | UINT32 DataSize;\r | |
45 | } TPM_CMD_NV_READ_VALUE;\r | |
46 | \r | |
47 | typedef struct {\r | |
48 | TPM_RSP_COMMAND_HDR Hdr;\r | |
49 | UINT32 DataSize;\r | |
50 | UINT8 Data[TPMCMDBUFLENGTH];\r | |
51 | } TPM_RSP_NV_READ_VALUE;\r | |
52 | \r | |
53 | typedef struct {\r | |
54 | TPM_RQU_COMMAND_HDR Hdr;\r | |
55 | TPM_NV_INDEX NvIndex;\r | |
56 | UINT32 Offset;\r | |
57 | UINT32 DataSize;\r | |
58 | UINT8 Data[TPMCMDBUFLENGTH];\r | |
59 | } TPM_CMD_NV_WRITE_VALUE;\r | |
60 | \r | |
61 | typedef struct {\r | |
62 | TPM_RSP_COMMAND_HDR Hdr;\r | |
63 | } TPM_RSP_NV_WRITE_VALUE;\r | |
64 | \r | |
65 | #pragma pack()\r | |
66 | \r | |
67 | /**\r | |
68 | Send NV DefineSpace command to TPM1.2.\r | |
69 | \r | |
70 | @param PubInfo The public parameters of the NV area.\r | |
71 | @param EncAuth The encrypted AuthData, only valid if the attributes require subsequent authorization.\r | |
72 | \r | |
73 | @retval EFI_SUCCESS Operation completed successfully.\r | |
74 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | Tpm12NvDefineSpace (\r | |
79 | IN TPM12_NV_DATA_PUBLIC *PubInfo,\r | |
80 | IN TPM_ENCAUTH *EncAuth\r | |
81 | )\r | |
82 | {\r | |
83 | EFI_STATUS Status;\r | |
84 | UINT32 TpmRecvSize;\r | |
85 | UINT32 TpmSendSize;\r | |
86 | TPM_CMD_NV_DEFINE_SPACE SendBuffer;\r | |
87 | TPM_RSP_NV_DEFINE_SPACE RecvBuffer;\r | |
88 | UINT32 ReturnCode;\r | |
89 | \r | |
90 | //\r | |
91 | // send Tpm command TPM_ORD_NV_DefineSpace\r | |
92 | //\r | |
93 | TpmRecvSize = sizeof (TPM_RSP_NV_DEFINE_SPACE);\r | |
94 | TpmSendSize = sizeof (TPM_CMD_NV_DEFINE_SPACE);\r | |
95 | SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
96 | SendBuffer.Hdr.paramSize = SwapBytes32 (sizeof(TPM_CMD_NV_DEFINE_SPACE));\r | |
97 | SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_DefineSpace);\r | |
98 | SendBuffer.PubInfo.tag = SwapBytes16 (PubInfo->tag);\r | |
99 | SendBuffer.PubInfo.nvIndex = SwapBytes32 (PubInfo->nvIndex);\r | |
100 | SendBuffer.PubInfo.pcrInfoRead.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoRead.pcrSelection.sizeOfSelect);\r | |
101 | SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[0];\r | |
102 | SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[1];\r | |
103 | SendBuffer.PubInfo.pcrInfoRead.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoRead.pcrSelection.pcrSelect[2];\r | |
104 | SendBuffer.PubInfo.pcrInfoRead.localityAtRelease = PubInfo->pcrInfoRead.localityAtRelease;\r | |
105 | CopyMem (&SendBuffer.PubInfo.pcrInfoRead.digestAtRelease, &PubInfo->pcrInfoRead.digestAtRelease, sizeof(PubInfo->pcrInfoRead.digestAtRelease));\r | |
106 | SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.sizeOfSelect = SwapBytes16 (PubInfo->pcrInfoWrite.pcrSelection.sizeOfSelect);\r | |
107 | SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[0] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[0];\r | |
108 | SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[1] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[1];\r | |
109 | SendBuffer.PubInfo.pcrInfoWrite.pcrSelection.pcrSelect[2] = PubInfo->pcrInfoWrite.pcrSelection.pcrSelect[2];\r | |
110 | SendBuffer.PubInfo.pcrInfoWrite.localityAtRelease = PubInfo->pcrInfoWrite.localityAtRelease;\r | |
111 | CopyMem (&SendBuffer.PubInfo.pcrInfoWrite.digestAtRelease, &PubInfo->pcrInfoWrite.digestAtRelease, sizeof(PubInfo->pcrInfoWrite.digestAtRelease));\r | |
112 | SendBuffer.PubInfo.permission.tag = SwapBytes16 (PubInfo->permission.tag);\r | |
113 | SendBuffer.PubInfo.permission.attributes = SwapBytes32 (PubInfo->permission.attributes);\r | |
114 | SendBuffer.PubInfo.bReadSTClear = PubInfo->bReadSTClear;\r | |
115 | SendBuffer.PubInfo.bWriteSTClear = PubInfo->bWriteSTClear;\r | |
116 | SendBuffer.PubInfo.bWriteDefine = PubInfo->bWriteDefine;\r | |
117 | SendBuffer.PubInfo.dataSize = SwapBytes32 (PubInfo->dataSize);\r | |
118 | CopyMem (&SendBuffer.EncAuth, EncAuth, sizeof(*EncAuth));\r | |
119 | \r | |
120 | Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);\r | |
121 | if (EFI_ERROR (Status)) {\r | |
122 | return Status;\r | |
123 | }\r | |
124 | ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);\r | |
125 | DEBUG ((DEBUG_INFO, "Tpm12NvDefineSpace - ReturnCode = %x\n", ReturnCode));\r | |
126 | switch (ReturnCode) {\r | |
127 | case TPM_SUCCESS:\r | |
128 | break;\r | |
129 | default:\r | |
130 | return EFI_DEVICE_ERROR;\r | |
131 | }\r | |
132 | \r | |
133 | return EFI_SUCCESS;\r | |
134 | }\r | |
135 | \r | |
136 | /**\r | |
137 | Send NV ReadValue command to TPM1.2.\r | |
138 | \r | |
139 | @param NvIndex The index of the area to set.\r | |
140 | @param Offset The offset into the area.\r | |
141 | @param DataSize The size of the data area.\r | |
142 | @param Data The data to set the area to.\r | |
143 | \r | |
144 | @retval EFI_SUCCESS Operation completed successfully.\r | |
145 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
146 | **/\r | |
147 | EFI_STATUS\r | |
148 | EFIAPI\r | |
149 | Tpm12NvReadValue (\r | |
150 | IN TPM_NV_INDEX NvIndex,\r | |
151 | IN UINT32 Offset,\r | |
152 | IN OUT UINT32 *DataSize,\r | |
153 | OUT UINT8 *Data\r | |
154 | )\r | |
155 | {\r | |
156 | EFI_STATUS Status;\r | |
157 | UINT32 TpmRecvSize;\r | |
158 | UINT32 TpmSendSize;\r | |
159 | TPM_CMD_NV_READ_VALUE SendBuffer;\r | |
160 | TPM_RSP_NV_READ_VALUE RecvBuffer;\r | |
161 | UINT32 ReturnCode;\r | |
162 | \r | |
163 | //\r | |
164 | // send Tpm command TPM_ORD_NV_ReadValue\r | |
165 | //\r | |
166 | TpmRecvSize = sizeof (TPM_RSP_NV_READ_VALUE);\r | |
167 | TpmSendSize = sizeof (TPM_CMD_NV_READ_VALUE);\r | |
168 | SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
169 | SendBuffer.Hdr.paramSize = SwapBytes32 (sizeof(TPM_CMD_NV_READ_VALUE));\r | |
170 | SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_ReadValue);\r | |
171 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
172 | SendBuffer.Offset = SwapBytes32 (Offset);\r | |
173 | SendBuffer.DataSize = SwapBytes32 (*DataSize);\r | |
174 | \r | |
175 | Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);\r | |
176 | if (EFI_ERROR (Status)) {\r | |
177 | return Status;\r | |
178 | }\r | |
179 | ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);\r | |
180 | DEBUG ((DEBUG_INFO, "Tpm12NvReadValue - ReturnCode = %x\n", ReturnCode));\r | |
181 | switch (ReturnCode) {\r | |
182 | case TPM_SUCCESS:\r | |
183 | break;\r | |
184 | default:\r | |
185 | return EFI_DEVICE_ERROR;\r | |
186 | }\r | |
187 | \r | |
188 | //\r | |
189 | // Return the response\r | |
190 | //\r | |
191 | *DataSize = SwapBytes32(RecvBuffer.DataSize);\r | |
192 | CopyMem (Data, &RecvBuffer.Data, *DataSize);\r | |
193 | \r | |
194 | return EFI_SUCCESS;\r | |
195 | }\r | |
196 | \r | |
197 | /**\r | |
198 | Send NV WriteValue command to TPM1.2.\r | |
199 | \r | |
200 | @param NvIndex The index of the area to set.\r | |
201 | @param Offset The offset into the NV Area.\r | |
202 | @param DataSize The size of the data parameter.\r | |
203 | @param Data The data to set the area to.\r | |
204 | \r | |
205 | @retval EFI_SUCCESS Operation completed successfully.\r | |
206 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
207 | **/\r | |
208 | EFI_STATUS\r | |
209 | EFIAPI\r | |
210 | Tpm12NvWriteValue (\r | |
211 | IN TPM_NV_INDEX NvIndex,\r | |
212 | IN UINT32 Offset,\r | |
213 | IN UINT32 DataSize,\r | |
214 | IN UINT8 *Data\r | |
215 | )\r | |
216 | {\r | |
217 | EFI_STATUS Status;\r | |
218 | UINT32 TpmRecvSize;\r | |
219 | UINT32 TpmSendSize;\r | |
220 | TPM_CMD_NV_WRITE_VALUE SendBuffer;\r | |
221 | TPM_RSP_NV_WRITE_VALUE RecvBuffer;\r | |
222 | UINT32 ReturnCode;\r | |
223 | \r | |
224 | if (DataSize > sizeof(SendBuffer.Data)) {\r | |
225 | return EFI_UNSUPPORTED;\r | |
226 | }\r | |
227 | \r | |
228 | //\r | |
229 | // send Tpm command TPM_ORD_NV_WriteValue\r | |
230 | //\r | |
231 | TpmRecvSize = sizeof (TPM_RSP_NV_WRITE_VALUE);\r | |
232 | TpmSendSize = sizeof (TPM_CMD_NV_WRITE_VALUE) - sizeof(SendBuffer.Data) + DataSize;\r | |
233 | SendBuffer.Hdr.tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
234 | SendBuffer.Hdr.paramSize = SwapBytes32 (sizeof(TPM_CMD_NV_WRITE_VALUE) - sizeof(SendBuffer.Data) + DataSize);\r | |
235 | SendBuffer.Hdr.ordinal = SwapBytes32 (TPM_ORD_NV_WriteValue);\r | |
236 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
237 | SendBuffer.Offset = SwapBytes32 (Offset);\r | |
238 | SendBuffer.DataSize = SwapBytes32 (DataSize);\r | |
239 | CopyMem (SendBuffer.Data, Data, DataSize);\r | |
240 | \r | |
241 | Status = Tpm12SubmitCommand (TpmSendSize, (UINT8 *)&SendBuffer, &TpmRecvSize, (UINT8 *)&RecvBuffer);\r | |
242 | if (EFI_ERROR (Status)) {\r | |
243 | return Status;\r | |
244 | }\r | |
245 | ReturnCode = SwapBytes32(RecvBuffer.Hdr.returnCode);\r | |
246 | DEBUG ((DEBUG_INFO, "Tpm12NvWritedValue - ReturnCode = %x\n", ReturnCode));\r | |
247 | switch (ReturnCode) {\r | |
248 | case TPM_SUCCESS:\r | |
249 | break;\r | |
250 | default:\r | |
251 | return EFI_DEVICE_ERROR;\r | |
252 | }\r | |
253 | \r | |
254 | return EFI_SUCCESS;\r | |
255 | }\r |