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1 | /** @file\r |
2 | Implement TPM2 NVStorage 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 | #define RC_NV_ReadPublic_nvIndex (TPM_RC_H + TPM_RC_1)\r | |
25 | \r | |
26 | #define RC_NV_DefineSpace_authHandle (TPM_RC_H + TPM_RC_1)\r | |
27 | #define RC_NV_DefineSpace_auth (TPM_RC_P + TPM_RC_1)\r | |
28 | #define RC_NV_DefineSpace_publicInfo (TPM_RC_P + TPM_RC_2)\r | |
29 | \r | |
30 | #define RC_NV_UndefineSpace_authHandle (TPM_RC_H + TPM_RC_1)\r | |
31 | #define RC_NV_UndefineSpace_nvIndex (TPM_RC_H + TPM_RC_2)\r | |
32 | \r | |
33 | #define RC_NV_Read_authHandle (TPM_RC_H + TPM_RC_1)\r | |
34 | #define RC_NV_Read_nvIndex (TPM_RC_H + TPM_RC_2)\r | |
35 | #define RC_NV_Read_size (TPM_RC_P + TPM_RC_1)\r | |
36 | #define RC_NV_Read_offset (TPM_RC_P + TPM_RC_2)\r | |
37 | \r | |
38 | #define RC_NV_Write_authHandle (TPM_RC_H + TPM_RC_1)\r | |
39 | #define RC_NV_Write_nvIndex (TPM_RC_H + TPM_RC_2)\r | |
40 | #define RC_NV_Write_data (TPM_RC_P + TPM_RC_1)\r | |
41 | #define RC_NV_Write_offset (TPM_RC_P + TPM_RC_2)\r | |
42 | \r | |
43 | typedef struct {\r | |
44 | TPM2_COMMAND_HEADER Header;\r | |
45 | TPMI_RH_NV_INDEX NvIndex;\r | |
46 | } TPM2_NV_READPUBLIC_COMMAND;\r | |
47 | \r | |
48 | typedef struct {\r | |
49 | TPM2_RESPONSE_HEADER Header;\r | |
50 | TPM2B_NV_PUBLIC NvPublic;\r | |
51 | TPM2B_NAME NvName;\r | |
52 | } TPM2_NV_READPUBLIC_RESPONSE;\r | |
53 | \r | |
54 | typedef struct {\r | |
55 | TPM2_COMMAND_HEADER Header;\r | |
56 | TPMI_RH_PROVISION AuthHandle;\r | |
57 | UINT32 AuthSessionSize;\r | |
58 | TPMS_AUTH_COMMAND AuthSession;\r | |
59 | TPM2B_AUTH Auth;\r | |
60 | TPM2B_NV_PUBLIC NvPublic;\r | |
61 | } TPM2_NV_DEFINESPACE_COMMAND;\r | |
62 | \r | |
63 | typedef struct {\r | |
64 | TPM2_RESPONSE_HEADER Header;\r | |
65 | UINT32 AuthSessionSize;\r | |
66 | TPMS_AUTH_RESPONSE AuthSession;\r | |
67 | } TPM2_NV_DEFINESPACE_RESPONSE;\r | |
68 | \r | |
69 | typedef struct {\r | |
70 | TPM2_COMMAND_HEADER Header;\r | |
71 | TPMI_RH_PROVISION AuthHandle;\r | |
72 | TPMI_RH_NV_INDEX NvIndex;\r | |
73 | UINT32 AuthSessionSize;\r | |
74 | TPMS_AUTH_COMMAND AuthSession;\r | |
75 | } TPM2_NV_UNDEFINESPACE_COMMAND;\r | |
76 | \r | |
77 | typedef struct {\r | |
78 | TPM2_RESPONSE_HEADER Header;\r | |
79 | UINT32 AuthSessionSize;\r | |
80 | TPMS_AUTH_RESPONSE AuthSession;\r | |
81 | } TPM2_NV_UNDEFINESPACE_RESPONSE;\r | |
82 | \r | |
83 | typedef struct {\r | |
84 | TPM2_COMMAND_HEADER Header;\r | |
85 | TPMI_RH_NV_AUTH AuthHandle;\r | |
86 | TPMI_RH_NV_INDEX NvIndex;\r | |
87 | UINT32 AuthSessionSize;\r | |
88 | TPMS_AUTH_COMMAND AuthSession;\r | |
89 | UINT16 Size;\r | |
90 | UINT16 Offset;\r | |
91 | } TPM2_NV_READ_COMMAND;\r | |
92 | \r | |
93 | typedef struct {\r | |
94 | TPM2_RESPONSE_HEADER Header;\r | |
95 | UINT32 AuthSessionSize;\r | |
96 | TPM2B_MAX_BUFFER Data;\r | |
97 | TPMS_AUTH_RESPONSE AuthSession;\r | |
98 | } TPM2_NV_READ_RESPONSE;\r | |
99 | \r | |
100 | typedef struct {\r | |
101 | TPM2_COMMAND_HEADER Header;\r | |
102 | TPMI_RH_NV_AUTH AuthHandle;\r | |
103 | TPMI_RH_NV_INDEX NvIndex;\r | |
104 | UINT32 AuthSessionSize;\r | |
105 | TPMS_AUTH_COMMAND AuthSession;\r | |
106 | TPM2B_MAX_BUFFER Data;\r | |
107 | UINT16 Offset;\r | |
108 | } TPM2_NV_WRITE_COMMAND;\r | |
109 | \r | |
110 | typedef struct {\r | |
111 | TPM2_RESPONSE_HEADER Header;\r | |
112 | UINT32 AuthSessionSize;\r | |
113 | TPMS_AUTH_RESPONSE AuthSession;\r | |
114 | } TPM2_NV_WRITE_RESPONSE;\r | |
115 | \r | |
116 | typedef struct {\r | |
117 | TPM2_COMMAND_HEADER Header;\r | |
118 | TPMI_RH_NV_AUTH AuthHandle;\r | |
119 | TPMI_RH_NV_INDEX NvIndex;\r | |
120 | UINT32 AuthSessionSize;\r | |
121 | TPMS_AUTH_COMMAND AuthSession;\r | |
122 | } TPM2_NV_READLOCK_COMMAND;\r | |
123 | \r | |
124 | typedef struct {\r | |
125 | TPM2_RESPONSE_HEADER Header;\r | |
126 | UINT32 AuthSessionSize;\r | |
127 | TPMS_AUTH_RESPONSE AuthSession;\r | |
128 | } TPM2_NV_READLOCK_RESPONSE;\r | |
129 | \r | |
130 | typedef struct {\r | |
131 | TPM2_COMMAND_HEADER Header;\r | |
132 | TPMI_RH_NV_AUTH AuthHandle;\r | |
133 | TPMI_RH_NV_INDEX NvIndex;\r | |
134 | UINT32 AuthSessionSize;\r | |
135 | TPMS_AUTH_COMMAND AuthSession;\r | |
136 | } TPM2_NV_WRITELOCK_COMMAND;\r | |
137 | \r | |
138 | typedef struct {\r | |
139 | TPM2_RESPONSE_HEADER Header;\r | |
140 | UINT32 AuthSessionSize;\r | |
141 | TPMS_AUTH_RESPONSE AuthSession;\r | |
142 | } TPM2_NV_WRITELOCK_RESPONSE;\r | |
143 | \r | |
144 | typedef struct {\r | |
145 | TPM2_COMMAND_HEADER Header;\r | |
146 | TPMI_RH_PROVISION AuthHandle;\r | |
147 | UINT32 AuthSessionSize;\r | |
148 | TPMS_AUTH_COMMAND AuthSession;\r | |
149 | } TPM2_NV_GLOBALWRITELOCK_COMMAND;\r | |
150 | \r | |
151 | typedef struct {\r | |
152 | TPM2_RESPONSE_HEADER Header;\r | |
153 | UINT32 AuthSessionSize;\r | |
154 | TPMS_AUTH_RESPONSE AuthSession;\r | |
155 | } TPM2_NV_GLOBALWRITELOCK_RESPONSE;\r | |
156 | \r | |
157 | #pragma pack()\r | |
158 | \r | |
159 | /**\r | |
160 | This command is used to read the public area and Name of an NV Index.\r | |
161 | \r | |
162 | @param[in] NvIndex The NV Index.\r | |
163 | @param[out] NvPublic The public area of the index.\r | |
164 | @param[out] NvName The Name of the nvIndex.\r | |
165 | \r | |
166 | @retval EFI_SUCCESS Operation completed successfully.\r | |
167 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
168 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
169 | **/\r | |
170 | EFI_STATUS\r | |
171 | EFIAPI\r | |
172 | Tpm2NvReadPublic (\r | |
173 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
174 | OUT TPM2B_NV_PUBLIC *NvPublic,\r | |
175 | OUT TPM2B_NAME *NvName\r | |
176 | )\r | |
177 | {\r | |
178 | EFI_STATUS Status;\r | |
179 | TPM2_NV_READPUBLIC_COMMAND SendBuffer;\r | |
180 | TPM2_NV_READPUBLIC_RESPONSE RecvBuffer;\r | |
181 | UINT32 SendBufferSize;\r | |
182 | UINT32 RecvBufferSize;\r | |
183 | UINT16 NvPublicSize;\r | |
184 | UINT16 NvNameSize;\r | |
185 | UINT8 *Buffer;\r | |
186 | TPM_RC ResponseCode;\r | |
187 | \r | |
188 | //\r | |
189 | // Construct command\r | |
190 | //\r | |
191 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_NO_SESSIONS);\r | |
192 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_ReadPublic);\r | |
193 | \r | |
194 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
195 | \r | |
196 | SendBufferSize = (UINT32) sizeof (SendBuffer);\r | |
197 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
198 | \r | |
199 | //\r | |
200 | // send Tpm command\r | |
201 | //\r | |
202 | RecvBufferSize = sizeof (RecvBuffer);\r | |
203 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
204 | if (EFI_ERROR (Status)) {\r | |
205 | return Status;\r | |
206 | }\r | |
207 | \r | |
208 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
209 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadPublic - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
210 | return EFI_DEVICE_ERROR;\r | |
211 | }\r | |
212 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
213 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
214 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadPublic - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
215 | }\r | |
216 | switch (ResponseCode) {\r | |
217 | case TPM_RC_SUCCESS:\r | |
218 | // return data\r | |
219 | break;\r | |
220 | case TPM_RC_HANDLE + RC_NV_ReadPublic_nvIndex: // TPM_RC_NV_DEFINED:\r | |
221 | return EFI_NOT_FOUND;\r | |
222 | case TPM_RC_VALUE + RC_NV_ReadPublic_nvIndex:\r | |
223 | return EFI_INVALID_PARAMETER;\r | |
224 | default:\r | |
225 | return EFI_DEVICE_ERROR;\r | |
226 | }\r | |
227 | \r | |
228 | if (RecvBufferSize <= sizeof (TPM2_RESPONSE_HEADER) + sizeof (UINT16) + sizeof(UINT16)) {\r | |
229 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadPublic - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
230 | return EFI_NOT_FOUND;\r | |
231 | }\r | |
232 | \r | |
233 | //\r | |
234 | // Basic check\r | |
235 | //\r | |
236 | NvPublicSize = SwapBytes16 (RecvBuffer.NvPublic.size);\r | |
237 | NvNameSize = SwapBytes16 (ReadUnaligned16 ((UINT16 *)((UINT8 *)&RecvBuffer + sizeof(TPM2_RESPONSE_HEADER) + sizeof(UINT16) + NvPublicSize)));\r | |
238 | \r | |
239 | if (RecvBufferSize != sizeof(TPM2_RESPONSE_HEADER) + sizeof(UINT16) + NvPublicSize + sizeof(UINT16) + NvNameSize) {\r | |
240 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadPublic - RecvBufferSize Error - NvPublicSize %x, NvNameSize %x\n", RecvBufferSize, NvNameSize));\r | |
241 | return EFI_NOT_FOUND;\r | |
242 | }\r | |
243 | \r | |
244 | //\r | |
245 | // Return the response\r | |
246 | //\r | |
247 | CopyMem (NvPublic, &RecvBuffer.NvPublic, sizeof(UINT16) + NvPublicSize);\r | |
248 | NvPublic->size = NvPublicSize;\r | |
249 | NvPublic->nvPublic.nvIndex = SwapBytes32 (NvPublic->nvPublic.nvIndex);\r | |
250 | NvPublic->nvPublic.nameAlg = SwapBytes16 (NvPublic->nvPublic.nameAlg);\r | |
251 | WriteUnaligned32 ((UINT32 *)&NvPublic->nvPublic.attributes, SwapBytes32 (ReadUnaligned32 ((UINT32 *)&NvPublic->nvPublic.attributes)));\r | |
252 | NvPublic->nvPublic.authPolicy.size = SwapBytes16 (NvPublic->nvPublic.authPolicy.size);\r | |
253 | Buffer = (UINT8 *)&NvPublic->nvPublic.authPolicy;\r | |
254 | Buffer += sizeof(UINT16) + NvPublic->nvPublic.authPolicy.size;\r | |
255 | NvPublic->nvPublic.dataSize = SwapBytes16 (ReadUnaligned16 ((UINT16 *)Buffer));\r | |
256 | \r | |
257 | CopyMem (NvName, (UINT8 *)&RecvBuffer + sizeof(TPM2_RESPONSE_HEADER) + sizeof(UINT16) + NvPublicSize, NvNameSize);\r | |
258 | NvName->size = NvNameSize;\r | |
259 | \r | |
260 | return EFI_SUCCESS;\r | |
261 | }\r | |
262 | \r | |
263 | /**\r | |
264 | This command defines the attributes of an NV Index and causes the TPM to\r | |
265 | reserve space to hold the data associated with the index.\r | |
266 | If a definition already exists at the index, the TPM will return TPM_RC_NV_DEFINED.\r | |
267 | \r | |
268 | @param[in] AuthHandle TPM_RH_OWNER or TPM_RH_PLATFORM+{PP}.\r | |
269 | @param[in] AuthSession Auth Session context\r | |
270 | @param[in] Auth The authorization data.\r | |
271 | @param[in] NvPublic The public area of the index.\r | |
272 | \r | |
273 | @retval EFI_SUCCESS Operation completed successfully.\r | |
274 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
275 | @retval EFI_ALREADY_STARTED The command was returned successfully, but NvIndex is already defined.\r | |
276 | **/\r | |
277 | EFI_STATUS\r | |
278 | EFIAPI\r | |
279 | Tpm2NvDefineSpace (\r | |
280 | IN TPMI_RH_PROVISION AuthHandle,\r | |
281 | IN TPMS_AUTH_COMMAND *AuthSession, OPTIONAL\r | |
282 | IN TPM2B_AUTH *Auth,\r | |
283 | IN TPM2B_NV_PUBLIC *NvPublic\r | |
284 | )\r | |
285 | {\r | |
286 | EFI_STATUS Status;\r | |
287 | TPM2_NV_DEFINESPACE_COMMAND SendBuffer;\r | |
288 | TPM2_NV_DEFINESPACE_RESPONSE RecvBuffer;\r | |
289 | UINT32 SendBufferSize;\r | |
290 | UINT32 RecvBufferSize;\r | |
291 | UINT16 NvPublicSize;\r | |
292 | UINT8 *Buffer;\r | |
293 | UINT32 SessionInfoSize;\r | |
294 | TPM_RC ResponseCode;\r | |
295 | \r | |
296 | //\r | |
297 | // Construct command\r | |
298 | //\r | |
299 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
300 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_DefineSpace);\r | |
301 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
302 | \r | |
303 | //\r | |
304 | // Add in Auth session\r | |
305 | //\r | |
306 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
307 | \r | |
308 | // sessionInfoSize\r | |
309 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
310 | Buffer += SessionInfoSize;\r | |
311 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
312 | \r | |
313 | //\r | |
314 | // IndexAuth\r | |
315 | //\r | |
316 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16(Auth->size));\r | |
317 | Buffer += sizeof(UINT16);\r | |
318 | CopyMem(Buffer, Auth->buffer, Auth->size);\r | |
319 | Buffer += Auth->size;\r | |
320 | \r | |
321 | //\r | |
322 | // NvPublic\r | |
323 | //\r | |
324 | NvPublicSize = NvPublic->size;\r | |
325 | \r | |
326 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (NvPublicSize));\r | |
327 | Buffer += sizeof(UINT16);\r | |
328 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32 (NvPublic->nvPublic.nvIndex));\r | |
329 | Buffer += sizeof(UINT32);\r | |
330 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (NvPublic->nvPublic.nameAlg));\r | |
331 | Buffer += sizeof(UINT16);\r | |
332 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32 (ReadUnaligned32 ((UINT32 *)&NvPublic->nvPublic.attributes)));\r | |
333 | Buffer += sizeof(UINT32);\r | |
334 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (NvPublic->nvPublic.authPolicy.size));\r | |
335 | Buffer += sizeof(UINT16);\r | |
336 | CopyMem (Buffer, NvPublic->nvPublic.authPolicy.buffer, NvPublic->nvPublic.authPolicy.size);\r | |
337 | Buffer += NvPublic->nvPublic.authPolicy.size;\r | |
338 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (NvPublic->nvPublic.dataSize));\r | |
339 | Buffer += sizeof(UINT16);\r | |
340 | \r | |
341 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
342 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
343 | \r | |
344 | //\r | |
345 | // send Tpm command\r | |
346 | //\r | |
347 | RecvBufferSize = sizeof (RecvBuffer);\r | |
348 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
349 | if (EFI_ERROR (Status)) {\r | |
350 | return Status;\r | |
351 | }\r | |
352 | \r | |
353 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
354 | DEBUG ((EFI_D_ERROR, "Tpm2NvDefineSpace - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
355 | return EFI_DEVICE_ERROR;\r | |
356 | }\r | |
357 | \r | |
358 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
359 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
360 | DEBUG ((EFI_D_ERROR, "Tpm2NvDefineSpace - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
361 | }\r | |
362 | switch (ResponseCode) {\r | |
363 | case TPM_RC_SUCCESS:\r | |
364 | // return data\r | |
365 | break;\r | |
366 | case TPM_RC_SIZE + RC_NV_DefineSpace_publicInfo:\r | |
367 | case TPM_RC_SIZE + RC_NV_DefineSpace_auth:\r | |
368 | return EFI_BAD_BUFFER_SIZE;\r | |
369 | case TPM_RC_ATTRIBUTES:\r | |
370 | case TPM_RC_ATTRIBUTES + RC_NV_DefineSpace_publicInfo:\r | |
371 | return EFI_UNSUPPORTED;\r | |
372 | case TPM_RC_ATTRIBUTES + RC_NV_DefineSpace_authHandle:\r | |
373 | return EFI_INVALID_PARAMETER;\r | |
374 | case TPM_RC_NV_DEFINED:\r | |
375 | return EFI_ALREADY_STARTED;\r | |
376 | case TPM_RC_VALUE + RC_NV_DefineSpace_publicInfo:\r | |
377 | case TPM_RC_VALUE + RC_NV_DefineSpace_authHandle:\r | |
378 | return EFI_INVALID_PARAMETER;\r | |
379 | case TPM_RC_NV_SPACE:\r | |
380 | return EFI_OUT_OF_RESOURCES;\r | |
381 | default:\r | |
382 | return EFI_DEVICE_ERROR;\r | |
383 | }\r | |
384 | \r | |
385 | return EFI_SUCCESS;\r | |
386 | }\r | |
387 | \r | |
388 | /**\r | |
389 | This command removes an index from the TPM.\r | |
390 | \r | |
391 | @param[in] AuthHandle TPM_RH_OWNER or TPM_RH_PLATFORM+{PP}.\r | |
392 | @param[in] NvIndex The NV Index.\r | |
393 | @param[in] AuthSession Auth Session context\r | |
394 | \r | |
395 | @retval EFI_SUCCESS Operation completed successfully.\r | |
396 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
397 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
398 | **/\r | |
399 | EFI_STATUS\r | |
400 | EFIAPI\r | |
401 | Tpm2NvUndefineSpace (\r | |
402 | IN TPMI_RH_PROVISION AuthHandle,\r | |
403 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
404 | IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL\r | |
405 | )\r | |
406 | {\r | |
407 | EFI_STATUS Status;\r | |
408 | TPM2_NV_UNDEFINESPACE_COMMAND SendBuffer;\r | |
409 | TPM2_NV_UNDEFINESPACE_RESPONSE RecvBuffer;\r | |
410 | UINT32 SendBufferSize;\r | |
411 | UINT32 RecvBufferSize;\r | |
412 | UINT8 *Buffer;\r | |
413 | UINT32 SessionInfoSize;\r | |
414 | TPM_RC ResponseCode;\r | |
415 | \r | |
416 | //\r | |
417 | // Construct command\r | |
418 | //\r | |
419 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
420 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_UndefineSpace);\r | |
421 | \r | |
422 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
423 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
424 | \r | |
425 | //\r | |
426 | // Add in Auth session\r | |
427 | //\r | |
428 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
429 | \r | |
430 | // sessionInfoSize\r | |
431 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
432 | Buffer += SessionInfoSize;\r | |
433 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
434 | \r | |
435 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
436 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
437 | \r | |
438 | //\r | |
439 | // send Tpm command\r | |
440 | //\r | |
441 | RecvBufferSize = sizeof (RecvBuffer);\r | |
442 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
443 | if (EFI_ERROR (Status)) {\r | |
444 | return Status;\r | |
445 | }\r | |
446 | \r | |
447 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
448 | DEBUG ((EFI_D_ERROR, "Tpm2NvUndefineSpace - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
449 | return EFI_DEVICE_ERROR;\r | |
450 | }\r | |
451 | \r | |
452 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
453 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
454 | DEBUG ((EFI_D_ERROR, "Tpm2NvUndefineSpace - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
455 | }\r | |
456 | switch (ResponseCode) {\r | |
457 | case TPM_RC_SUCCESS:\r | |
458 | // return data\r | |
459 | break;\r | |
460 | case TPM_RC_ATTRIBUTES:\r | |
461 | case TPM_RC_ATTRIBUTES + RC_NV_UndefineSpace_nvIndex:\r | |
462 | return EFI_UNSUPPORTED;\r | |
463 | case TPM_RC_NV_AUTHORIZATION:\r | |
464 | return EFI_SECURITY_VIOLATION;\r | |
465 | case TPM_RC_HANDLE + RC_NV_UndefineSpace_nvIndex: // TPM_RC_NV_DEFINED:\r | |
466 | return EFI_NOT_FOUND;\r | |
467 | case TPM_RC_HANDLE + RC_NV_UndefineSpace_authHandle: // TPM_RC_NV_DEFINED:\r | |
468 | return EFI_INVALID_PARAMETER;\r | |
469 | case TPM_RC_VALUE + RC_NV_UndefineSpace_authHandle:\r | |
470 | case TPM_RC_VALUE + RC_NV_UndefineSpace_nvIndex:\r | |
471 | return EFI_INVALID_PARAMETER;\r | |
472 | default:\r | |
473 | return EFI_DEVICE_ERROR;\r | |
474 | }\r | |
475 | \r | |
476 | return EFI_SUCCESS;\r | |
477 | }\r | |
478 | \r | |
479 | /**\r | |
480 | This command reads a value from an area in NV memory previously defined by TPM2_NV_DefineSpace().\r | |
481 | \r | |
482 | @param[in] AuthHandle the handle indicating the source of the authorization value.\r | |
483 | @param[in] NvIndex The index to be read.\r | |
484 | @param[in] AuthSession Auth Session context\r | |
485 | @param[in] Size Number of bytes to read.\r | |
486 | @param[in] Offset Byte offset into the area.\r | |
487 | @param[in,out] OutData The data read.\r | |
488 | \r | |
489 | @retval EFI_SUCCESS Operation completed successfully.\r | |
490 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
491 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
492 | **/\r | |
493 | EFI_STATUS\r | |
494 | EFIAPI\r | |
495 | Tpm2NvRead (\r | |
496 | IN TPMI_RH_NV_AUTH AuthHandle,\r | |
497 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
498 | IN TPMS_AUTH_COMMAND *AuthSession, OPTIONAL\r | |
499 | IN UINT16 Size,\r | |
500 | IN UINT16 Offset,\r | |
501 | IN OUT TPM2B_MAX_BUFFER *OutData\r | |
502 | )\r | |
503 | {\r | |
504 | EFI_STATUS Status;\r | |
505 | TPM2_NV_READ_COMMAND SendBuffer;\r | |
506 | TPM2_NV_READ_RESPONSE RecvBuffer;\r | |
507 | UINT32 SendBufferSize;\r | |
508 | UINT32 RecvBufferSize;\r | |
509 | UINT8 *Buffer;\r | |
510 | UINT32 SessionInfoSize;\r | |
511 | TPM_RC ResponseCode;\r | |
512 | \r | |
513 | //\r | |
514 | // Construct command\r | |
515 | //\r | |
516 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
517 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_Read);\r | |
518 | \r | |
519 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
520 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
521 | \r | |
522 | //\r | |
523 | // Add in Auth session\r | |
524 | //\r | |
525 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
526 | \r | |
527 | // sessionInfoSize\r | |
528 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
529 | Buffer += SessionInfoSize;\r | |
530 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
531 | \r | |
532 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (Size));\r | |
533 | Buffer += sizeof(UINT16);\r | |
534 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (Offset));\r | |
535 | Buffer += sizeof(UINT16);\r | |
536 | \r | |
537 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
538 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
539 | \r | |
540 | //\r | |
541 | // send Tpm command\r | |
542 | //\r | |
543 | RecvBufferSize = sizeof (RecvBuffer);\r | |
544 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
545 | if (EFI_ERROR (Status)) {\r | |
546 | return Status;\r | |
547 | }\r | |
548 | \r | |
549 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
550 | DEBUG ((EFI_D_ERROR, "Tpm2NvRead - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
551 | return EFI_DEVICE_ERROR;\r | |
552 | }\r | |
553 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
554 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
555 | DEBUG ((EFI_D_ERROR, "Tpm2NvRead - responseCode - %x\n", ResponseCode));\r | |
556 | }\r | |
557 | switch (ResponseCode) {\r | |
558 | case TPM_RC_SUCCESS:\r | |
559 | // return data\r | |
560 | break;\r | |
561 | case TPM_RC_NV_AUTHORIZATION:\r | |
562 | return EFI_SECURITY_VIOLATION;\r | |
563 | case TPM_RC_NV_LOCKED:\r | |
564 | return EFI_ACCESS_DENIED;\r | |
565 | case TPM_RC_NV_RANGE:\r | |
566 | return EFI_BAD_BUFFER_SIZE;\r | |
567 | case TPM_RC_NV_UNINITIALIZED:\r | |
568 | return EFI_NOT_READY;\r | |
569 | case TPM_RC_HANDLE + RC_NV_Read_nvIndex: // TPM_RC_NV_DEFINED:\r | |
570 | return EFI_NOT_FOUND;\r | |
571 | case TPM_RC_HANDLE + RC_NV_Read_authHandle: // TPM_RC_NV_DEFINED:\r | |
572 | return EFI_INVALID_PARAMETER;\r | |
573 | case TPM_RC_VALUE + RC_NV_Read_nvIndex:\r | |
574 | case TPM_RC_VALUE + RC_NV_Read_authHandle:\r | |
575 | return EFI_INVALID_PARAMETER;\r | |
576 | case TPM_RC_BAD_AUTH + RC_NV_Read_authHandle + TPM_RC_S:\r | |
577 | return EFI_INVALID_PARAMETER;\r | |
578 | case TPM_RC_AUTH_UNAVAILABLE:\r | |
579 | return EFI_INVALID_PARAMETER;\r | |
580 | case TPM_RC_AUTH_FAIL + RC_NV_Read_authHandle + TPM_RC_S:\r | |
581 | return EFI_INVALID_PARAMETER;\r | |
582 | default:\r | |
583 | return EFI_DEVICE_ERROR;\r | |
584 | case TPM_RC_ATTRIBUTES + RC_NV_Read_authHandle + TPM_RC_S:\r | |
585 | return EFI_UNSUPPORTED;\r | |
586 | }\r | |
587 | \r | |
588 | //\r | |
589 | // Return the response\r | |
590 | //\r | |
591 | OutData->size = SwapBytes16 (RecvBuffer.Data.size);\r | |
592 | CopyMem (OutData->buffer, &RecvBuffer.Data.buffer, OutData->size);\r | |
593 | \r | |
594 | return EFI_SUCCESS;\r | |
595 | }\r | |
596 | \r | |
597 | /**\r | |
598 | This command writes a value to an area in NV memory that was previously defined by TPM2_NV_DefineSpace().\r | |
599 | \r | |
600 | @param[in] AuthHandle the handle indicating the source of the authorization value.\r | |
601 | @param[in] NvIndex The NV Index of the area to write.\r | |
602 | @param[in] AuthSession Auth Session context\r | |
603 | @param[in] InData The data to write.\r | |
604 | @param[in] Offset The offset into the NV Area.\r | |
605 | \r | |
606 | @retval EFI_SUCCESS Operation completed successfully.\r | |
607 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
608 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
609 | **/\r | |
610 | EFI_STATUS\r | |
611 | EFIAPI\r | |
612 | Tpm2NvWrite (\r | |
613 | IN TPMI_RH_NV_AUTH AuthHandle,\r | |
614 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
615 | IN TPMS_AUTH_COMMAND *AuthSession, OPTIONAL\r | |
616 | IN TPM2B_MAX_BUFFER *InData,\r | |
617 | IN UINT16 Offset\r | |
618 | )\r | |
619 | {\r | |
620 | EFI_STATUS Status;\r | |
621 | TPM2_NV_WRITE_COMMAND SendBuffer;\r | |
622 | TPM2_NV_WRITE_RESPONSE RecvBuffer;\r | |
623 | UINT32 SendBufferSize;\r | |
624 | UINT32 RecvBufferSize;\r | |
625 | UINT8 *Buffer;\r | |
626 | UINT32 SessionInfoSize;\r | |
627 | TPM_RC ResponseCode;\r | |
628 | \r | |
629 | //\r | |
630 | // Construct command\r | |
631 | //\r | |
632 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
633 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_Write);\r | |
634 | \r | |
635 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
636 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
637 | \r | |
638 | //\r | |
639 | // Add in Auth session\r | |
640 | //\r | |
641 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
642 | \r | |
643 | // sessionInfoSize\r | |
644 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
645 | Buffer += SessionInfoSize;\r | |
646 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
647 | \r | |
648 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (InData->size));\r | |
649 | Buffer += sizeof(UINT16);\r | |
650 | CopyMem (Buffer, InData->buffer, InData->size);\r | |
651 | Buffer += InData->size;\r | |
652 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16 (Offset));\r | |
653 | Buffer += sizeof(UINT16);\r | |
654 | \r | |
655 | SendBufferSize = (UINT32) (Buffer - (UINT8 *)&SendBuffer);\r | |
656 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
657 | \r | |
658 | //\r | |
659 | // send Tpm command\r | |
660 | //\r | |
661 | RecvBufferSize = sizeof (RecvBuffer);\r | |
662 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
663 | if (EFI_ERROR (Status)) {\r | |
664 | return Status;\r | |
665 | }\r | |
666 | \r | |
667 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
668 | DEBUG ((EFI_D_ERROR, "Tpm2NvWrite - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
669 | return EFI_DEVICE_ERROR;\r | |
670 | }\r | |
671 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
672 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
673 | DEBUG ((EFI_D_ERROR, "Tpm2NvWrite - responseCode - %x\n", ResponseCode));\r | |
674 | }\r | |
675 | switch (ResponseCode) {\r | |
676 | case TPM_RC_SUCCESS:\r | |
677 | return EFI_SUCCESS;\r | |
678 | case TPM_RC_ATTRIBUTES:\r | |
679 | return EFI_UNSUPPORTED;\r | |
680 | case TPM_RC_NV_AUTHORIZATION:\r | |
681 | return EFI_SECURITY_VIOLATION;\r | |
682 | case TPM_RC_NV_LOCKED:\r | |
683 | return EFI_ACCESS_DENIED;\r | |
684 | case TPM_RC_NV_RANGE:\r | |
685 | return EFI_BAD_BUFFER_SIZE;\r | |
686 | case TPM_RC_HANDLE + RC_NV_Write_nvIndex: // TPM_RC_NV_DEFINED:\r | |
687 | return EFI_NOT_FOUND;\r | |
688 | case TPM_RC_HANDLE + RC_NV_Write_authHandle: // TPM_RC_NV_DEFINED:\r | |
689 | return EFI_INVALID_PARAMETER;\r | |
690 | case TPM_RC_VALUE + RC_NV_Write_nvIndex:\r | |
691 | case TPM_RC_VALUE + RC_NV_Write_authHandle:\r | |
692 | return EFI_INVALID_PARAMETER;\r | |
693 | case TPM_RC_BAD_AUTH + RC_NV_Write_authHandle + TPM_RC_S:\r | |
694 | return EFI_INVALID_PARAMETER;\r | |
695 | case TPM_RC_AUTH_UNAVAILABLE:\r | |
696 | return EFI_INVALID_PARAMETER;\r | |
697 | case TPM_RC_AUTH_FAIL + RC_NV_Write_authHandle + TPM_RC_S:\r | |
698 | return EFI_INVALID_PARAMETER;\r | |
699 | default:\r | |
700 | return EFI_DEVICE_ERROR;\r | |
701 | case TPM_RC_ATTRIBUTES + RC_NV_Write_authHandle + TPM_RC_S:\r | |
702 | return EFI_UNSUPPORTED;\r | |
703 | }\r | |
704 | }\r | |
705 | \r | |
706 | /**\r | |
707 | This command may be used to prevent further reads of the Index until the next TPM2_Startup (TPM_SU_CLEAR).\r | |
708 | \r | |
709 | @param[in] AuthHandle the handle indicating the source of the authorization value.\r | |
710 | @param[in] NvIndex The NV Index of the area to lock.\r | |
711 | @param[in] AuthSession Auth Session context\r | |
712 | \r | |
713 | @retval EFI_SUCCESS Operation completed successfully.\r | |
714 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
715 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
716 | **/\r | |
717 | EFI_STATUS\r | |
718 | EFIAPI\r | |
719 | Tpm2NvReadLock (\r | |
720 | IN TPMI_RH_NV_AUTH AuthHandle,\r | |
721 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
722 | IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL\r | |
723 | )\r | |
724 | {\r | |
725 | EFI_STATUS Status;\r | |
726 | TPM2_NV_READLOCK_COMMAND SendBuffer;\r | |
727 | TPM2_NV_READLOCK_RESPONSE RecvBuffer;\r | |
728 | UINT32 SendBufferSize;\r | |
729 | UINT32 RecvBufferSize;\r | |
730 | UINT8 *Buffer;\r | |
731 | UINT32 SessionInfoSize;\r | |
732 | TPM_RC ResponseCode;\r | |
733 | \r | |
734 | //\r | |
735 | // Construct command\r | |
736 | //\r | |
737 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
738 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_ReadLock);\r | |
739 | \r | |
740 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
741 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
742 | \r | |
743 | //\r | |
744 | // Add in Auth session\r | |
745 | //\r | |
746 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
747 | \r | |
748 | // sessionInfoSize\r | |
749 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
750 | Buffer += SessionInfoSize;\r | |
751 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
752 | \r | |
753 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
754 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
755 | \r | |
756 | //\r | |
757 | // send Tpm command\r | |
758 | //\r | |
759 | RecvBufferSize = sizeof (RecvBuffer);\r | |
760 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
761 | if (EFI_ERROR (Status)) {\r | |
762 | return Status;\r | |
763 | }\r | |
764 | \r | |
765 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
766 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadLock - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
767 | return EFI_DEVICE_ERROR;\r | |
768 | }\r | |
769 | \r | |
770 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
771 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
772 | DEBUG ((EFI_D_ERROR, "Tpm2NvReadLock - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
773 | }\r | |
774 | switch (ResponseCode) {\r | |
775 | case TPM_RC_SUCCESS:\r | |
776 | // return data\r | |
777 | break;\r | |
778 | default:\r | |
779 | return EFI_DEVICE_ERROR;\r | |
780 | }\r | |
781 | \r | |
782 | return EFI_SUCCESS;\r | |
783 | }\r | |
784 | \r | |
785 | /**\r | |
786 | This command may be used to inhibit further writes of the Index.\r | |
787 | \r | |
788 | @param[in] AuthHandle the handle indicating the source of the authorization value.\r | |
789 | @param[in] NvIndex The NV Index of the area to lock.\r | |
790 | @param[in] AuthSession Auth Session context\r | |
791 | \r | |
792 | @retval EFI_SUCCESS Operation completed successfully.\r | |
793 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
794 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
795 | **/\r | |
796 | EFI_STATUS\r | |
797 | EFIAPI\r | |
798 | Tpm2NvWriteLock (\r | |
799 | IN TPMI_RH_NV_AUTH AuthHandle,\r | |
800 | IN TPMI_RH_NV_INDEX NvIndex,\r | |
801 | IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL\r | |
802 | )\r | |
803 | {\r | |
804 | EFI_STATUS Status;\r | |
805 | TPM2_NV_WRITELOCK_COMMAND SendBuffer;\r | |
806 | TPM2_NV_WRITELOCK_RESPONSE RecvBuffer;\r | |
807 | UINT32 SendBufferSize;\r | |
808 | UINT32 RecvBufferSize;\r | |
809 | UINT8 *Buffer;\r | |
810 | UINT32 SessionInfoSize;\r | |
811 | TPM_RC ResponseCode;\r | |
812 | \r | |
813 | //\r | |
814 | // Construct command\r | |
815 | //\r | |
816 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
817 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_WriteLock);\r | |
818 | \r | |
819 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
820 | SendBuffer.NvIndex = SwapBytes32 (NvIndex);\r | |
821 | \r | |
822 | //\r | |
823 | // Add in Auth session\r | |
824 | //\r | |
825 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
826 | \r | |
827 | // sessionInfoSize\r | |
828 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
829 | Buffer += SessionInfoSize;\r | |
830 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
831 | \r | |
832 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
833 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
834 | \r | |
835 | //\r | |
836 | // send Tpm command\r | |
837 | //\r | |
838 | RecvBufferSize = sizeof (RecvBuffer);\r | |
839 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
840 | if (EFI_ERROR (Status)) {\r | |
841 | return Status;\r | |
842 | }\r | |
843 | \r | |
844 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
845 | DEBUG ((EFI_D_ERROR, "Tpm2NvWriteLock - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
846 | return EFI_DEVICE_ERROR;\r | |
847 | }\r | |
848 | \r | |
849 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
850 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
851 | DEBUG ((EFI_D_ERROR, "Tpm2NvWriteLock - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
852 | }\r | |
853 | switch (ResponseCode) {\r | |
854 | case TPM_RC_SUCCESS:\r | |
855 | // return data\r | |
856 | break;\r | |
857 | default:\r | |
858 | return EFI_DEVICE_ERROR;\r | |
859 | }\r | |
860 | \r | |
861 | return EFI_SUCCESS;\r | |
862 | }\r | |
863 | \r | |
864 | /**\r | |
865 | The command will SET TPMA_NV_WRITELOCKED for all indexes that have their TPMA_NV_GLOBALLOCK attribute SET.\r | |
866 | \r | |
867 | @param[in] AuthHandle TPM_RH_OWNER or TPM_RH_PLATFORM+{PP}.\r | |
868 | @param[in] AuthSession Auth Session context\r | |
869 | \r | |
870 | @retval EFI_SUCCESS Operation completed successfully.\r | |
871 | @retval EFI_DEVICE_ERROR The command was unsuccessful.\r | |
872 | @retval EFI_NOT_FOUND The command was returned successfully, but NvIndex is not found.\r | |
873 | **/\r | |
874 | EFI_STATUS\r | |
875 | EFIAPI\r | |
876 | Tpm2NvGlobalWriteLock (\r | |
877 | IN TPMI_RH_PROVISION AuthHandle,\r | |
878 | IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL\r | |
879 | )\r | |
880 | {\r | |
881 | EFI_STATUS Status;\r | |
882 | TPM2_NV_GLOBALWRITELOCK_COMMAND SendBuffer;\r | |
883 | TPM2_NV_GLOBALWRITELOCK_RESPONSE RecvBuffer;\r | |
884 | UINT32 SendBufferSize;\r | |
885 | UINT32 RecvBufferSize;\r | |
886 | UINT8 *Buffer;\r | |
887 | UINT32 SessionInfoSize;\r | |
888 | TPM_RC ResponseCode;\r | |
889 | \r | |
890 | //\r | |
891 | // Construct command\r | |
892 | //\r | |
893 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
894 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_NV_GlobalWriteLock);\r | |
895 | \r | |
896 | SendBuffer.AuthHandle = SwapBytes32 (AuthHandle);\r | |
897 | \r | |
898 | //\r | |
899 | // Add in Auth session\r | |
900 | //\r | |
901 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
902 | \r | |
903 | // sessionInfoSize\r | |
904 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
905 | Buffer += SessionInfoSize;\r | |
906 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
907 | \r | |
908 | SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);\r | |
909 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
910 | \r | |
911 | //\r | |
912 | // send Tpm command\r | |
913 | //\r | |
914 | RecvBufferSize = sizeof (RecvBuffer);\r | |
915 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
916 | if (EFI_ERROR (Status)) {\r | |
917 | return Status;\r | |
918 | }\r | |
919 | \r | |
920 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
921 | DEBUG ((EFI_D_ERROR, "Tpm2NvGlobalWriteLock - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
922 | return EFI_DEVICE_ERROR;\r | |
923 | }\r | |
924 | \r | |
925 | ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);\r | |
926 | if (ResponseCode != TPM_RC_SUCCESS) {\r | |
927 | DEBUG ((EFI_D_ERROR, "Tpm2NvGlobalWriteLock - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
928 | }\r | |
929 | switch (ResponseCode) {\r | |
930 | case TPM_RC_SUCCESS:\r | |
931 | // return data\r | |
932 | break;\r | |
933 | default:\r | |
934 | return EFI_DEVICE_ERROR;\r | |
935 | }\r | |
936 | \r | |
937 | return EFI_SUCCESS;\r | |
938 | }\r |