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c1d93242 JY |
1 | /** @file\r |
2 | Implement TPM2 Hierarchy related command.\r | |
3 | \r | |
58dbfc3c | 4 | Copyright (c) 2013 - 2014, 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_CLEAR AuthHandle;\r | |
27 | UINT32 AuthorizationSize;\r | |
28 | TPMS_AUTH_COMMAND AuthSession;\r | |
29 | } TPM2_CLEAR_COMMAND;\r | |
30 | \r | |
31 | typedef struct {\r | |
32 | TPM2_RESPONSE_HEADER Header;\r | |
33 | UINT32 ParameterSize;\r | |
34 | TPMS_AUTH_RESPONSE AuthSession;\r | |
35 | } TPM2_CLEAR_RESPONSE;\r | |
36 | \r | |
37 | typedef struct {\r | |
38 | TPM2_COMMAND_HEADER Header;\r | |
39 | TPMI_RH_CLEAR AuthHandle;\r | |
40 | UINT32 AuthorizationSize;\r | |
41 | TPMS_AUTH_COMMAND AuthSession;\r | |
42 | TPMI_YES_NO Disable;\r | |
43 | } TPM2_CLEAR_CONTROL_COMMAND;\r | |
44 | \r | |
45 | typedef struct {\r | |
46 | TPM2_RESPONSE_HEADER Header;\r | |
47 | UINT32 ParameterSize;\r | |
48 | TPMS_AUTH_RESPONSE AuthSession;\r | |
49 | } TPM2_CLEAR_CONTROL_RESPONSE;\r | |
50 | \r | |
51 | typedef struct {\r | |
52 | TPM2_COMMAND_HEADER Header;\r | |
53 | TPMI_RH_HIERARCHY_AUTH AuthHandle;\r | |
54 | UINT32 AuthorizationSize;\r | |
55 | TPMS_AUTH_COMMAND AuthSession;\r | |
56 | TPM2B_AUTH NewAuth;\r | |
57 | } TPM2_HIERARCHY_CHANGE_AUTH_COMMAND;\r | |
58 | \r | |
59 | typedef struct {\r | |
60 | TPM2_RESPONSE_HEADER Header;\r | |
61 | UINT32 ParameterSize;\r | |
62 | TPMS_AUTH_RESPONSE AuthSession;\r | |
63 | } TPM2_HIERARCHY_CHANGE_AUTH_RESPONSE;\r | |
64 | \r | |
65 | typedef struct {\r | |
66 | TPM2_COMMAND_HEADER Header;\r | |
67 | TPMI_RH_PLATFORM AuthHandle;\r | |
68 | UINT32 AuthorizationSize;\r | |
69 | TPMS_AUTH_COMMAND AuthSession;\r | |
70 | } TPM2_CHANGE_EPS_COMMAND;\r | |
71 | \r | |
72 | typedef struct {\r | |
73 | TPM2_RESPONSE_HEADER Header;\r | |
74 | UINT32 ParameterSize;\r | |
75 | TPMS_AUTH_RESPONSE AuthSession;\r | |
76 | } TPM2_CHANGE_EPS_RESPONSE;\r | |
77 | \r | |
78 | typedef struct {\r | |
79 | TPM2_COMMAND_HEADER Header;\r | |
80 | TPMI_RH_PLATFORM AuthHandle;\r | |
81 | UINT32 AuthorizationSize;\r | |
82 | TPMS_AUTH_COMMAND AuthSession;\r | |
83 | } TPM2_CHANGE_PPS_COMMAND;\r | |
84 | \r | |
85 | typedef struct {\r | |
86 | TPM2_RESPONSE_HEADER Header;\r | |
87 | UINT32 ParameterSize;\r | |
88 | TPMS_AUTH_RESPONSE AuthSession;\r | |
89 | } TPM2_CHANGE_PPS_RESPONSE;\r | |
90 | \r | |
91 | typedef struct {\r | |
92 | TPM2_COMMAND_HEADER Header;\r | |
93 | TPMI_RH_HIERARCHY AuthHandle;\r | |
94 | UINT32 AuthorizationSize;\r | |
95 | TPMS_AUTH_COMMAND AuthSession;\r | |
96 | TPMI_RH_HIERARCHY Hierarchy;\r | |
97 | TPMI_YES_NO State;\r | |
98 | } TPM2_HIERARCHY_CONTROL_COMMAND;\r | |
99 | \r | |
100 | typedef struct {\r | |
101 | TPM2_RESPONSE_HEADER Header;\r | |
102 | UINT32 ParameterSize;\r | |
103 | TPMS_AUTH_RESPONSE AuthSession;\r | |
104 | } TPM2_HIERARCHY_CONTROL_RESPONSE;\r | |
105 | \r | |
106 | #pragma pack()\r | |
107 | \r | |
108 | /**\r | |
109 | This command removes all TPM context associated with a specific Owner.\r | |
110 | \r | |
111 | @param[in] AuthHandle TPM_RH_LOCKOUT or TPM_RH_PLATFORM+{PP}\r | |
112 | @param[in] AuthSession Auth Session context\r | |
113 | \r | |
114 | @retval EFI_SUCCESS Operation completed successfully.\r | |
115 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
116 | **/\r | |
117 | EFI_STATUS\r | |
118 | EFIAPI\r | |
119 | Tpm2Clear (\r | |
120 | IN TPMI_RH_CLEAR AuthHandle,\r | |
121 | IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL\r | |
122 | )\r | |
123 | {\r | |
124 | EFI_STATUS Status;\r | |
125 | TPM2_CLEAR_COMMAND Cmd;\r | |
126 | TPM2_CLEAR_RESPONSE Res;\r | |
127 | UINT32 ResultBufSize;\r | |
128 | UINT32 CmdSize;\r | |
129 | UINT32 RespSize;\r | |
130 | UINT8 *Buffer;\r | |
131 | UINT32 SessionInfoSize;\r | |
132 | \r | |
133 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
134 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_Clear);\r | |
135 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
136 | \r | |
137 | //\r | |
138 | // Add in Auth session\r | |
139 | //\r | |
140 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
141 | \r | |
142 | // sessionInfoSize\r | |
143 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
144 | Buffer += SessionInfoSize;\r | |
145 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
146 | \r | |
147 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
148 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
149 | \r | |
150 | ResultBufSize = sizeof(Res);\r | |
151 | Status = Tpm2SubmitCommand (CmdSize, (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);\r | |
152 | if (EFI_ERROR(Status)) {\r | |
153 | return Status;\r | |
154 | }\r | |
155 | \r | |
156 | if (ResultBufSize > sizeof(Res)) {\r | |
157 | DEBUG ((EFI_D_ERROR, "Clear: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
158 | return EFI_BUFFER_TOO_SMALL;\r | |
159 | }\r | |
160 | \r | |
161 | //\r | |
162 | // Validate response headers\r | |
163 | //\r | |
164 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
165 | if (RespSize > sizeof(Res)) {\r | |
166 | DEBUG ((EFI_D_ERROR, "Clear: Response size too large! %d\r\n", RespSize));\r | |
167 | return EFI_BUFFER_TOO_SMALL;\r | |
168 | }\r | |
169 | \r | |
170 | //\r | |
171 | // Fail if command failed\r | |
172 | //\r | |
173 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
174 | DEBUG ((EFI_D_ERROR, "Clear: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
175 | return EFI_DEVICE_ERROR;\r | |
176 | }\r | |
177 | \r | |
178 | //\r | |
179 | // Unmarshal the response\r | |
180 | //\r | |
181 | \r | |
182 | // None\r | |
183 | \r | |
184 | return EFI_SUCCESS;\r | |
185 | }\r | |
186 | \r | |
187 | /**\r | |
188 | Disables and enables the execution of TPM2_Clear().\r | |
189 | \r | |
190 | @param[in] AuthHandle TPM_RH_LOCKOUT or TPM_RH_PLATFORM+{PP}\r | |
191 | @param[in] AuthSession Auth Session context\r | |
192 | @param[in] Disable YES if the disableOwnerClear flag is to be SET,\r | |
193 | NO if the flag is to be CLEAR.\r | |
194 | \r | |
195 | @retval EFI_SUCCESS Operation completed successfully.\r | |
196 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
197 | **/\r | |
198 | EFI_STATUS\r | |
199 | EFIAPI\r | |
200 | Tpm2ClearControl (\r | |
201 | IN TPMI_RH_CLEAR AuthHandle,\r | |
202 | IN TPMS_AUTH_COMMAND *AuthSession, OPTIONAL\r | |
203 | IN TPMI_YES_NO Disable\r | |
204 | )\r | |
205 | {\r | |
206 | EFI_STATUS Status;\r | |
207 | TPM2_CLEAR_CONTROL_COMMAND Cmd;\r | |
208 | TPM2_CLEAR_CONTROL_RESPONSE Res;\r | |
209 | UINT32 ResultBufSize;\r | |
210 | UINT32 CmdSize;\r | |
211 | UINT32 RespSize;\r | |
212 | UINT8 *Buffer;\r | |
213 | UINT32 SessionInfoSize;\r | |
214 | \r | |
215 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
216 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_ClearControl);\r | |
217 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
218 | \r | |
219 | //\r | |
220 | // Add in Auth session\r | |
221 | //\r | |
222 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
223 | \r | |
224 | // sessionInfoSize\r | |
225 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
226 | Buffer += SessionInfoSize;\r | |
227 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
228 | \r | |
229 | // disable\r | |
230 | *(UINT8 *)Buffer = Disable;\r | |
58dbfc3c | 231 | Buffer++;\r |
c1d93242 JY |
232 | \r |
233 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
234 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
235 | \r | |
236 | ResultBufSize = sizeof(Res);\r | |
237 | Status = Tpm2SubmitCommand (CmdSize, (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);\r | |
238 | if (EFI_ERROR(Status)) {\r | |
239 | return Status;\r | |
240 | }\r | |
241 | \r | |
242 | if (ResultBufSize > sizeof(Res)) {\r | |
243 | DEBUG ((EFI_D_ERROR, "ClearControl: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
244 | return EFI_BUFFER_TOO_SMALL;\r | |
245 | }\r | |
246 | \r | |
247 | //\r | |
248 | // Validate response headers\r | |
249 | //\r | |
250 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
251 | if (RespSize > sizeof(Res)) {\r | |
252 | DEBUG ((EFI_D_ERROR, "ClearControl: Response size too large! %d\r\n", RespSize));\r | |
253 | return EFI_BUFFER_TOO_SMALL;\r | |
254 | }\r | |
255 | \r | |
256 | //\r | |
257 | // Fail if command failed\r | |
258 | //\r | |
259 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
260 | DEBUG ((EFI_D_ERROR, "ClearControl: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
261 | return EFI_DEVICE_ERROR;\r | |
262 | }\r | |
263 | \r | |
264 | //\r | |
265 | // Unmarshal the response\r | |
266 | //\r | |
267 | \r | |
268 | // None\r | |
269 | \r | |
270 | return EFI_SUCCESS;\r | |
271 | }\r | |
272 | \r | |
273 | /**\r | |
274 | This command allows the authorization secret for a hierarchy or lockout to be changed using the current\r | |
275 | authorization value as the command authorization.\r | |
276 | \r | |
277 | @param[in] AuthHandle TPM_RH_LOCKOUT, TPM_RH_ENDORSEMENT, TPM_RH_OWNER or TPM_RH_PLATFORM+{PP}\r | |
278 | @param[in] AuthSession Auth Session context\r | |
279 | @param[in] NewAuth New authorization secret\r | |
280 | \r | |
281 | @retval EFI_SUCCESS Operation completed successfully.\r | |
282 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
283 | **/\r | |
284 | EFI_STATUS\r | |
285 | EFIAPI\r | |
286 | Tpm2HierarchyChangeAuth (\r | |
287 | IN TPMI_RH_HIERARCHY_AUTH AuthHandle,\r | |
288 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
289 | IN TPM2B_AUTH *NewAuth\r | |
290 | )\r | |
291 | {\r | |
292 | EFI_STATUS Status;\r | |
293 | TPM2_HIERARCHY_CHANGE_AUTH_COMMAND Cmd;\r | |
294 | TPM2_HIERARCHY_CHANGE_AUTH_RESPONSE Res;\r | |
295 | UINT32 CmdSize;\r | |
296 | UINT32 RespSize;\r | |
297 | UINT8 *Buffer;\r | |
298 | UINT32 SessionInfoSize;\r | |
299 | UINT8 *ResultBuf;\r | |
300 | UINT32 ResultBufSize;\r | |
301 | \r | |
302 | //\r | |
303 | // Construct command\r | |
304 | //\r | |
305 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
306 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
307 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_HierarchyChangeAuth);\r | |
308 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
309 | \r | |
310 | //\r | |
311 | // Add in Auth session\r | |
312 | //\r | |
313 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
314 | \r | |
315 | // sessionInfoSize\r | |
316 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
317 | Buffer += SessionInfoSize;\r | |
318 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
319 | \r | |
320 | // New Authorization size\r | |
321 | WriteUnaligned16 ((UINT16 *)Buffer, SwapBytes16(NewAuth->size));\r | |
322 | Buffer += sizeof(UINT16);\r | |
323 | \r | |
324 | // New Authorizeation\r | |
325 | CopyMem(Buffer, NewAuth->buffer, NewAuth->size);\r | |
326 | Buffer += NewAuth->size;\r | |
327 | \r | |
328 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
329 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
330 | \r | |
331 | ResultBuf = (UINT8 *) &Res;\r | |
332 | ResultBufSize = sizeof(Res);\r | |
333 | \r | |
334 | //\r | |
335 | // Call the TPM\r | |
336 | //\r | |
337 | Status = Tpm2SubmitCommand (\r | |
338 | CmdSize, \r | |
339 | (UINT8 *)&Cmd, \r | |
340 | &ResultBufSize,\r | |
341 | ResultBuf\r | |
342 | );\r | |
343 | \r | |
344 | if (ResultBufSize > sizeof(Res)) {\r | |
345 | DEBUG ((EFI_D_ERROR, "HierarchyChangeAuth: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
346 | return EFI_BUFFER_TOO_SMALL;\r | |
347 | }\r | |
348 | \r | |
349 | //\r | |
350 | // Validate response headers\r | |
351 | //\r | |
352 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
353 | if (RespSize > sizeof(Res)) {\r | |
354 | DEBUG ((EFI_D_ERROR, "HierarchyChangeAuth: Response size too large! %d\r\n", RespSize));\r | |
355 | return EFI_BUFFER_TOO_SMALL;\r | |
356 | }\r | |
357 | \r | |
358 | //\r | |
359 | // Fail if command failed\r | |
360 | //\r | |
361 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
362 | DEBUG((EFI_D_ERROR,"HierarchyChangeAuth: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
363 | return EFI_DEVICE_ERROR;\r | |
364 | }\r | |
365 | \r | |
366 | return EFI_SUCCESS;\r | |
367 | }\r | |
368 | \r | |
369 | /**\r | |
370 | This replaces the current EPS with a value from the RNG and sets the Endorsement hierarchy controls to\r | |
371 | their default initialization values.\r | |
372 | \r | |
373 | @param[in] AuthHandle TPM_RH_PLATFORM+{PP}\r | |
374 | @param[in] AuthSession Auth Session context\r | |
375 | \r | |
376 | @retval EFI_SUCCESS Operation completed successfully.\r | |
377 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
378 | **/\r | |
379 | EFI_STATUS\r | |
380 | EFIAPI\r | |
381 | Tpm2ChangeEPS (\r | |
382 | IN TPMI_RH_PLATFORM AuthHandle,\r | |
383 | IN TPMS_AUTH_COMMAND *AuthSession\r | |
384 | )\r | |
385 | {\r | |
386 | EFI_STATUS Status;\r | |
387 | TPM2_CHANGE_EPS_COMMAND Cmd;\r | |
388 | TPM2_CHANGE_EPS_RESPONSE Res;\r | |
389 | UINT32 CmdSize;\r | |
390 | UINT32 RespSize;\r | |
391 | UINT8 *Buffer;\r | |
392 | UINT32 SessionInfoSize;\r | |
393 | UINT8 *ResultBuf;\r | |
394 | UINT32 ResultBufSize;\r | |
395 | \r | |
396 | //\r | |
397 | // Construct command\r | |
398 | //\r | |
399 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
400 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
401 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_ChangeEPS);\r | |
402 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
403 | \r | |
404 | //\r | |
405 | // Add in Auth session\r | |
406 | //\r | |
407 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
408 | \r | |
409 | // sessionInfoSize\r | |
410 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
411 | Buffer += SessionInfoSize;\r | |
412 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
413 | \r | |
414 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
415 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
416 | \r | |
417 | ResultBuf = (UINT8 *) &Res;\r | |
418 | ResultBufSize = sizeof(Res);\r | |
419 | \r | |
420 | //\r | |
421 | // Call the TPM\r | |
422 | //\r | |
423 | Status = Tpm2SubmitCommand (\r | |
424 | CmdSize, \r | |
425 | (UINT8 *)&Cmd, \r | |
426 | &ResultBufSize,\r | |
427 | ResultBuf\r | |
428 | );\r | |
429 | \r | |
430 | if (ResultBufSize > sizeof(Res)) {\r | |
431 | DEBUG ((EFI_D_ERROR, "ChangeEPS: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
432 | return EFI_BUFFER_TOO_SMALL;\r | |
433 | }\r | |
434 | \r | |
435 | //\r | |
436 | // Validate response headers\r | |
437 | //\r | |
438 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
439 | if (RespSize > sizeof(Res)) {\r | |
440 | DEBUG ((EFI_D_ERROR, "ChangeEPS: Response size too large! %d\r\n", RespSize));\r | |
441 | return EFI_BUFFER_TOO_SMALL;\r | |
442 | }\r | |
443 | \r | |
444 | //\r | |
445 | // Fail if command failed\r | |
446 | //\r | |
447 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
448 | DEBUG((EFI_D_ERROR,"ChangeEPS: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
449 | return EFI_DEVICE_ERROR;\r | |
450 | }\r | |
451 | \r | |
452 | return EFI_SUCCESS;\r | |
453 | }\r | |
454 | \r | |
455 | /**\r | |
456 | This replaces the current PPS with a value from the RNG and sets platformPolicy to the default\r | |
457 | initialization value (the Empty Buffer).\r | |
458 | \r | |
459 | @param[in] AuthHandle TPM_RH_PLATFORM+{PP}\r | |
460 | @param[in] AuthSession Auth Session context\r | |
461 | \r | |
462 | @retval EFI_SUCCESS Operation completed successfully.\r | |
463 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
464 | **/\r | |
465 | EFI_STATUS\r | |
466 | EFIAPI\r | |
467 | Tpm2ChangePPS (\r | |
468 | IN TPMI_RH_PLATFORM AuthHandle,\r | |
469 | IN TPMS_AUTH_COMMAND *AuthSession\r | |
470 | )\r | |
471 | {\r | |
472 | EFI_STATUS Status;\r | |
473 | TPM2_CHANGE_PPS_COMMAND Cmd;\r | |
474 | TPM2_CHANGE_PPS_RESPONSE Res;\r | |
475 | UINT32 CmdSize;\r | |
476 | UINT32 RespSize;\r | |
477 | UINT8 *Buffer;\r | |
478 | UINT32 SessionInfoSize;\r | |
479 | UINT8 *ResultBuf;\r | |
480 | UINT32 ResultBufSize;\r | |
481 | \r | |
482 | //\r | |
483 | // Construct command\r | |
484 | //\r | |
485 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
486 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
487 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_ChangePPS);\r | |
488 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
489 | \r | |
490 | //\r | |
491 | // Add in Auth session\r | |
492 | //\r | |
493 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
494 | \r | |
495 | // sessionInfoSize\r | |
496 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
497 | Buffer += SessionInfoSize;\r | |
498 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
499 | \r | |
500 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
501 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
502 | \r | |
503 | ResultBuf = (UINT8 *) &Res;\r | |
504 | ResultBufSize = sizeof(Res);\r | |
505 | \r | |
506 | //\r | |
507 | // Call the TPM\r | |
508 | //\r | |
509 | Status = Tpm2SubmitCommand (\r | |
510 | CmdSize, \r | |
511 | (UINT8 *)&Cmd, \r | |
512 | &ResultBufSize,\r | |
513 | ResultBuf\r | |
514 | );\r | |
515 | \r | |
516 | if (ResultBufSize > sizeof(Res)) {\r | |
517 | DEBUG ((EFI_D_ERROR, "ChangePPS: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
518 | return EFI_BUFFER_TOO_SMALL;\r | |
519 | }\r | |
520 | \r | |
521 | //\r | |
522 | // Validate response headers\r | |
523 | //\r | |
524 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
525 | if (RespSize > sizeof(Res)) {\r | |
526 | DEBUG ((EFI_D_ERROR, "ChangePPS: Response size too large! %d\r\n", RespSize));\r | |
527 | return EFI_BUFFER_TOO_SMALL;\r | |
528 | }\r | |
529 | \r | |
530 | //\r | |
531 | // Fail if command failed\r | |
532 | //\r | |
533 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
534 | DEBUG((EFI_D_ERROR,"ChangePPS: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
535 | return EFI_DEVICE_ERROR;\r | |
536 | }\r | |
537 | \r | |
538 | return EFI_SUCCESS;\r | |
539 | }\r | |
540 | \r | |
541 | /**\r | |
542 | This command enables and disables use of a hierarchy.\r | |
543 | \r | |
544 | @param[in] AuthHandle TPM_RH_ENDORSEMENT, TPM_RH_OWNER or TPM_RH_PLATFORM+{PP}\r | |
545 | @param[in] AuthSession Auth Session context\r | |
546 | @param[in] Hierarchy Hierarchy of the enable being modified\r | |
547 | @param[in] State YES if the enable should be SET,\r | |
548 | NO if the enable should be CLEAR\r | |
549 | \r | |
550 | @retval EFI_SUCCESS Operation completed successfully.\r | |
551 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
552 | **/\r | |
553 | EFI_STATUS\r | |
554 | EFIAPI\r | |
555 | Tpm2HierarchyControl (\r | |
556 | IN TPMI_RH_HIERARCHY AuthHandle,\r | |
557 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
558 | IN TPMI_RH_HIERARCHY Hierarchy,\r | |
559 | IN TPMI_YES_NO State\r | |
560 | )\r | |
561 | {\r | |
562 | EFI_STATUS Status;\r | |
563 | TPM2_HIERARCHY_CONTROL_COMMAND Cmd;\r | |
564 | TPM2_HIERARCHY_CONTROL_RESPONSE Res;\r | |
565 | UINT32 CmdSize;\r | |
566 | UINT32 RespSize;\r | |
567 | UINT8 *Buffer;\r | |
568 | UINT32 SessionInfoSize;\r | |
569 | UINT8 *ResultBuf;\r | |
570 | UINT32 ResultBufSize;\r | |
571 | \r | |
572 | //\r | |
573 | // Construct command\r | |
574 | //\r | |
575 | Cmd.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
576 | Cmd.Header.paramSize = SwapBytes32(sizeof(Cmd));\r | |
577 | Cmd.Header.commandCode = SwapBytes32(TPM_CC_HierarchyControl);\r | |
578 | Cmd.AuthHandle = SwapBytes32(AuthHandle);\r | |
579 | \r | |
580 | //\r | |
581 | // Add in Auth session\r | |
582 | //\r | |
583 | Buffer = (UINT8 *)&Cmd.AuthSession;\r | |
584 | \r | |
585 | // sessionInfoSize\r | |
586 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
587 | Buffer += SessionInfoSize;\r | |
588 | Cmd.AuthorizationSize = SwapBytes32(SessionInfoSize);\r | |
589 | \r | |
590 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(Hierarchy));\r | |
591 | Buffer += sizeof(UINT32);\r | |
592 | \r | |
593 | *(UINT8 *)Buffer = State;\r | |
58dbfc3c | 594 | Buffer++;\r |
c1d93242 JY |
595 | \r |
596 | CmdSize = (UINT32)(Buffer - (UINT8 *)&Cmd);\r | |
597 | Cmd.Header.paramSize = SwapBytes32(CmdSize);\r | |
598 | \r | |
599 | ResultBuf = (UINT8 *) &Res;\r | |
600 | ResultBufSize = sizeof(Res);\r | |
601 | \r | |
602 | //\r | |
603 | // Call the TPM\r | |
604 | //\r | |
605 | Status = Tpm2SubmitCommand (\r | |
606 | CmdSize, \r | |
607 | (UINT8 *)&Cmd, \r | |
608 | &ResultBufSize,\r | |
609 | ResultBuf\r | |
610 | );\r | |
611 | \r | |
612 | if (ResultBufSize > sizeof(Res)) {\r | |
613 | DEBUG ((EFI_D_ERROR, "HierarchyControl: Failed ExecuteCommand: Buffer Too Small\r\n"));\r | |
614 | return EFI_BUFFER_TOO_SMALL;\r | |
615 | }\r | |
616 | \r | |
617 | //\r | |
618 | // Validate response headers\r | |
619 | //\r | |
620 | RespSize = SwapBytes32(Res.Header.paramSize);\r | |
621 | if (RespSize > sizeof(Res)) {\r | |
622 | DEBUG ((EFI_D_ERROR, "HierarchyControl: Response size too large! %d\r\n", RespSize));\r | |
623 | return EFI_BUFFER_TOO_SMALL;\r | |
624 | }\r | |
625 | \r | |
626 | //\r | |
627 | // Fail if command failed\r | |
628 | //\r | |
629 | if (SwapBytes32(Res.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
630 | DEBUG((EFI_D_ERROR,"HierarchyControl: Response Code error! 0x%08x\r\n", SwapBytes32(Res.Header.responseCode)));\r | |
631 | return EFI_DEVICE_ERROR;\r | |
632 | }\r | |
633 | \r | |
634 | return EFI_SUCCESS;\r | |
635 | }\r |