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1 | /** @file\r | |
2 | \r | |
3 | Execute pending TPM requests from OS or BIOS and Lock TPM.\r | |
4 | \r | |
5 | Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>\r | |
6 | This program and the accompanying materials \r | |
7 | are licensed and made available under the terms and conditions of the BSD License \r | |
8 | which accompanies this distribution. The full text of the license may be found at \r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include <PiDxe.h>\r | |
17 | \r | |
18 | #include <Protocol/TcgService.h>\r | |
19 | #include <Library/DebugLib.h>\r | |
20 | #include <Library/BaseMemoryLib.h>\r | |
21 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
22 | #include <Library/UefiDriverEntryPoint.h>\r | |
23 | #include <Library/UefiBootServicesTableLib.h>\r | |
24 | #include <Library/UefiLib.h>\r | |
25 | #include <Library/MemoryAllocationLib.h>\r | |
26 | #include <Library/PrintLib.h>\r | |
27 | #include <Library/HiiLib.h>\r | |
28 | #include <Guid/EventGroup.h>\r | |
29 | #include <Guid/PhysicalPresenceData.h>\r | |
30 | \r | |
31 | #define TPM_PP_USER_ABORT ((TPM_RESULT)(-0x10))\r | |
32 | #define TPM_PP_BIOS_FAILURE ((TPM_RESULT)(-0x0f))\r | |
33 | #define CONFIRM_BUFFER_SIZE 4096\r | |
34 | \r | |
35 | EFI_HII_HANDLE mPpStringPackHandle;\r | |
36 | \r | |
37 | /**\r | |
38 | Get string by string id from HII Interface.\r | |
39 | \r | |
40 | @param[in] Id String ID.\r | |
41 | \r | |
42 | @retval CHAR16 * String from ID.\r | |
43 | @retval NULL If error occurs.\r | |
44 | \r | |
45 | **/\r | |
46 | CHAR16 *\r | |
47 | PhysicalPresenceGetStringById (\r | |
48 | IN EFI_STRING_ID Id\r | |
49 | )\r | |
50 | {\r | |
51 | return HiiGetString (mPpStringPackHandle, Id, NULL);\r | |
52 | }\r | |
53 | \r | |
54 | /**\r | |
55 | Get TPM physical presence permanent flags.\r | |
56 | \r | |
57 | @param[in] TcgProtocol EFI TCG Protocol instance. \r | |
58 | @param[out] LifetimeLock physicalPresenceLifetimeLock permanent flag. \r | |
59 | @param[out] CmdEnable physicalPresenceCMDEnable permanent flag.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS Flags were returns successfully.\r | |
62 | @retval other Failed to locate EFI TCG Protocol.\r | |
63 | \r | |
64 | **/\r | |
65 | EFI_STATUS\r | |
66 | GetTpmCapability (\r | |
67 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
68 | OUT BOOLEAN *LifetimeLock,\r | |
69 | OUT BOOLEAN *CmdEnable\r | |
70 | )\r | |
71 | {\r | |
72 | EFI_STATUS Status;\r | |
73 | TPM_RQU_COMMAND_HDR *TpmRqu;\r | |
74 | TPM_RSP_COMMAND_HDR *TpmRsp;\r | |
75 | UINT32 *SendBufPtr;\r | |
76 | UINT8 SendBuffer[sizeof (*TpmRqu) + sizeof (UINT32) * 3];\r | |
77 | TPM_PERMANENT_FLAGS *TpmPermanentFlags;\r | |
78 | UINT8 RecvBuffer[40];\r | |
79 | \r | |
80 | //\r | |
81 | // Fill request header\r | |
82 | //\r | |
83 | TpmRsp = (TPM_RSP_COMMAND_HDR*)RecvBuffer;\r | |
84 | TpmRqu = (TPM_RQU_COMMAND_HDR*)SendBuffer;\r | |
85 | \r | |
86 | TpmRqu->tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
87 | TpmRqu->paramSize = SwapBytes32 (sizeof (SendBuffer));\r | |
88 | TpmRqu->ordinal = SwapBytes32 (TPM_ORD_GetCapability);\r | |
89 | \r | |
90 | //\r | |
91 | // Set request parameter\r | |
92 | //\r | |
93 | SendBufPtr = (UINT32*)(TpmRqu + 1);\r | |
94 | WriteUnaligned32 (SendBufPtr++, SwapBytes32 (TPM_CAP_FLAG));\r | |
95 | WriteUnaligned32 (SendBufPtr++, SwapBytes32 (sizeof (TPM_CAP_FLAG_PERMANENT)));\r | |
96 | WriteUnaligned32 (SendBufPtr, SwapBytes32 (TPM_CAP_FLAG_PERMANENT)); \r | |
97 | \r | |
98 | Status = TcgProtocol->PassThroughToTpm (\r | |
99 | TcgProtocol,\r | |
100 | sizeof (SendBuffer),\r | |
101 | (UINT8*)TpmRqu,\r | |
102 | sizeof (RecvBuffer),\r | |
103 | (UINT8*)&RecvBuffer\r | |
104 | );\r | |
105 | ASSERT_EFI_ERROR (Status);\r | |
106 | ASSERT (TpmRsp->tag == SwapBytes16 (TPM_TAG_RSP_COMMAND));\r | |
107 | ASSERT (TpmRsp->returnCode == 0);\r | |
108 | \r | |
109 | TpmPermanentFlags = (TPM_PERMANENT_FLAGS *)&RecvBuffer[sizeof (TPM_RSP_COMMAND_HDR) + sizeof (UINT32)];\r | |
110 | \r | |
111 | if (LifetimeLock != NULL) {\r | |
112 | *LifetimeLock = TpmPermanentFlags->physicalPresenceLifetimeLock;\r | |
113 | }\r | |
114 | \r | |
115 | if (CmdEnable != NULL) {\r | |
116 | *CmdEnable = TpmPermanentFlags->physicalPresenceCMDEnable;\r | |
117 | }\r | |
118 | \r | |
119 | return Status;\r | |
120 | }\r | |
121 | \r | |
122 | /**\r | |
123 | Issue TSC_PhysicalPresence command to TPM.\r | |
124 | \r | |
125 | @param[in] TcgProtocol EFI TCG Protocol instance. \r | |
126 | @param[in] PhysicalPresence The state to set the TPM's Physical Presence flags. \r | |
127 | \r | |
128 | @retval EFI_SUCCESS TPM executed the command successfully.\r | |
129 | @retval EFI_SECURITY_VIOLATION TPM returned error when executing the command.\r | |
130 | @retval other Failed to locate EFI TCG Protocol.\r | |
131 | \r | |
132 | **/\r | |
133 | EFI_STATUS\r | |
134 | TpmPhysicalPresence (\r | |
135 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
136 | IN TPM_PHYSICAL_PRESENCE PhysicalPresence\r | |
137 | )\r | |
138 | {\r | |
139 | EFI_STATUS Status;\r | |
140 | TPM_RQU_COMMAND_HDR *TpmRqu;\r | |
141 | TPM_PHYSICAL_PRESENCE *TpmPp;\r | |
142 | TPM_RSP_COMMAND_HDR TpmRsp;\r | |
143 | UINT8 Buffer[sizeof (*TpmRqu) + sizeof (*TpmPp)];\r | |
144 | \r | |
145 | TpmRqu = (TPM_RQU_COMMAND_HDR*)Buffer;\r | |
146 | TpmPp = (TPM_PHYSICAL_PRESENCE*)(TpmRqu + 1);\r | |
147 | \r | |
148 | TpmRqu->tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
149 | TpmRqu->paramSize = SwapBytes32 (sizeof (Buffer));\r | |
150 | TpmRqu->ordinal = SwapBytes32 (TSC_ORD_PhysicalPresence);\r | |
151 | WriteUnaligned16 (TpmPp, (TPM_PHYSICAL_PRESENCE) SwapBytes16 (PhysicalPresence)); \r | |
152 | \r | |
153 | Status = TcgProtocol->PassThroughToTpm (\r | |
154 | TcgProtocol,\r | |
155 | sizeof (Buffer),\r | |
156 | (UINT8*)TpmRqu,\r | |
157 | sizeof (TpmRsp),\r | |
158 | (UINT8*)&TpmRsp\r | |
159 | );\r | |
160 | ASSERT_EFI_ERROR (Status);\r | |
161 | ASSERT (TpmRsp.tag == SwapBytes16 (TPM_TAG_RSP_COMMAND));\r | |
162 | if (TpmRsp.returnCode != 0) {\r | |
163 | //\r | |
164 | // If it fails, some requirements may be needed for this command.\r | |
165 | //\r | |
166 | return EFI_SECURITY_VIOLATION;\r | |
167 | }\r | |
168 | \r | |
169 | return Status;\r | |
170 | }\r | |
171 | \r | |
172 | /**\r | |
173 | Issue a TPM command for which no additional output data will be returned.\r | |
174 | \r | |
175 | @param[in] TcgProtocol EFI TCG Protocol instance. \r | |
176 | @param[in] Ordinal TPM command code. \r | |
177 | @param[in] AdditionalParameterSize Additional parameter size. \r | |
178 | @param[in] AdditionalParameters Pointer to the Additional paramaters. \r | |
179 | \r | |
180 | @retval TPM_PP_BIOS_FAILURE Error occurred during sending command to TPM or \r | |
181 | receiving response from TPM.\r | |
182 | @retval Others Return code from the TPM device after command execution.\r | |
183 | \r | |
184 | **/\r | |
185 | TPM_RESULT\r | |
186 | TpmCommandNoReturnData (\r | |
187 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
188 | IN TPM_COMMAND_CODE Ordinal,\r | |
189 | IN UINTN AdditionalParameterSize,\r | |
190 | IN VOID *AdditionalParameters\r | |
191 | )\r | |
192 | {\r | |
193 | EFI_STATUS Status;\r | |
194 | TPM_RQU_COMMAND_HDR *TpmRqu;\r | |
195 | TPM_RSP_COMMAND_HDR TpmRsp;\r | |
196 | UINT32 Size;\r | |
197 | \r | |
198 | TpmRqu = (TPM_RQU_COMMAND_HDR*) AllocatePool (sizeof (*TpmRqu) + AdditionalParameterSize);\r | |
199 | if (TpmRqu == NULL) {\r | |
200 | return TPM_PP_BIOS_FAILURE;\r | |
201 | }\r | |
202 | \r | |
203 | TpmRqu->tag = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r | |
204 | Size = (UINT32)(sizeof (*TpmRqu) + AdditionalParameterSize);\r | |
205 | TpmRqu->paramSize = SwapBytes32 (Size);\r | |
206 | TpmRqu->ordinal = SwapBytes32 (Ordinal);\r | |
207 | CopyMem (TpmRqu + 1, AdditionalParameters, AdditionalParameterSize);\r | |
208 | \r | |
209 | Status = TcgProtocol->PassThroughToTpm (\r | |
210 | TcgProtocol,\r | |
211 | Size,\r | |
212 | (UINT8*)TpmRqu,\r | |
213 | (UINT32)sizeof (TpmRsp),\r | |
214 | (UINT8*)&TpmRsp\r | |
215 | );\r | |
216 | FreePool (TpmRqu);\r | |
217 | if (EFI_ERROR (Status) || (TpmRsp.tag != SwapBytes16 (TPM_TAG_RSP_COMMAND))) {\r | |
218 | return TPM_PP_BIOS_FAILURE;\r | |
219 | }\r | |
220 | return SwapBytes32 (TpmRsp.returnCode);\r | |
221 | }\r | |
222 | \r | |
223 | /**\r | |
224 | Execute physical presence operation requested by the OS.\r | |
225 | \r | |
226 | @param[in] TcgProtocol EFI TCG Protocol instance.\r | |
227 | @param[in] CommandCode Physical presence operation value.\r | |
228 | @param[in, out] PpiFlags The physical presence interface flags.\r | |
229 | \r | |
230 | @retval TPM_PP_BIOS_FAILURE Unknown physical presence operation.\r | |
231 | @retval TPM_PP_BIOS_FAILURE Error occurred during sending command to TPM or \r | |
232 | receiving response from TPM.\r | |
233 | @retval Others Return code from the TPM device after command execution.\r | |
234 | \r | |
235 | **/\r | |
236 | TPM_RESULT\r | |
237 | ExecutePhysicalPresence (\r | |
238 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
239 | IN UINT8 CommandCode,\r | |
240 | IN OUT UINT8 *PpiFlags\r | |
241 | )\r | |
242 | {\r | |
243 | BOOLEAN BoolVal;\r | |
244 | TPM_RESULT TpmResponse;\r | |
245 | UINT32 InData[5];\r | |
246 | \r | |
247 | switch (CommandCode) {\r | |
248 | case PHYSICAL_PRESENCE_ENABLE:\r | |
249 | return TpmCommandNoReturnData (\r | |
250 | TcgProtocol,\r | |
251 | TPM_ORD_PhysicalEnable,\r | |
252 | 0,\r | |
253 | NULL\r | |
254 | );\r | |
255 | \r | |
256 | case PHYSICAL_PRESENCE_DISABLE:\r | |
257 | return TpmCommandNoReturnData (\r | |
258 | TcgProtocol,\r | |
259 | TPM_ORD_PhysicalDisable,\r | |
260 | 0,\r | |
261 | NULL\r | |
262 | );\r | |
263 | \r | |
264 | case PHYSICAL_PRESENCE_ACTIVATE:\r | |
265 | BoolVal = FALSE;\r | |
266 | return TpmCommandNoReturnData (\r | |
267 | TcgProtocol,\r | |
268 | TPM_ORD_PhysicalSetDeactivated,\r | |
269 | sizeof (BoolVal),\r | |
270 | &BoolVal\r | |
271 | );\r | |
272 | \r | |
273 | case PHYSICAL_PRESENCE_DEACTIVATE:\r | |
274 | BoolVal = TRUE;\r | |
275 | return TpmCommandNoReturnData (\r | |
276 | TcgProtocol,\r | |
277 | TPM_ORD_PhysicalSetDeactivated,\r | |
278 | sizeof (BoolVal),\r | |
279 | &BoolVal\r | |
280 | );\r | |
281 | \r | |
282 | case PHYSICAL_PRESENCE_CLEAR:\r | |
283 | return TpmCommandNoReturnData (\r | |
284 | TcgProtocol,\r | |
285 | TPM_ORD_ForceClear,\r | |
286 | 0,\r | |
287 | NULL\r | |
288 | );\r | |
289 | \r | |
290 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE:\r | |
291 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ENABLE, PpiFlags);\r | |
292 | if (TpmResponse == 0) {\r | |
293 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ACTIVATE, PpiFlags);\r | |
294 | }\r | |
295 | return TpmResponse;\r | |
296 | \r | |
297 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE:\r | |
298 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_DEACTIVATE, PpiFlags);\r | |
299 | if (TpmResponse == 0) {\r | |
300 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_DISABLE, PpiFlags);\r | |
301 | }\r | |
302 | return TpmResponse;\r | |
303 | \r | |
304 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE:\r | |
305 | BoolVal = TRUE;\r | |
306 | return TpmCommandNoReturnData (\r | |
307 | TcgProtocol,\r | |
308 | TPM_ORD_SetOwnerInstall,\r | |
309 | sizeof (BoolVal),\r | |
310 | &BoolVal\r | |
311 | );\r | |
312 | \r | |
313 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_FALSE:\r | |
314 | BoolVal = FALSE;\r | |
315 | return TpmCommandNoReturnData (\r | |
316 | TcgProtocol,\r | |
317 | TPM_ORD_SetOwnerInstall,\r | |
318 | sizeof (BoolVal),\r | |
319 | &BoolVal\r | |
320 | );\r | |
321 | \r | |
322 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_OWNER_TRUE:\r | |
323 | //\r | |
324 | // PHYSICAL_PRESENCE_ENABLE_ACTIVATE + PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE\r | |
325 | // PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE will be executed after reboot\r | |
326 | //\r | |
327 | if ((*PpiFlags & FLAG_RESET_TRACK) == 0) {\r | |
328 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ENABLE_ACTIVATE, PpiFlags);\r | |
329 | *PpiFlags |= FLAG_RESET_TRACK;\r | |
330 | } else {\r | |
331 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE, PpiFlags);\r | |
332 | *PpiFlags &= ~FLAG_RESET_TRACK;\r | |
333 | }\r | |
334 | return TpmResponse;\r | |
335 | \r | |
336 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE_OWNER_FALSE:\r | |
337 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_SET_OWNER_INSTALL_FALSE, PpiFlags);\r | |
338 | if (TpmResponse == 0) {\r | |
339 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_DEACTIVATE_DISABLE, PpiFlags);\r | |
340 | }\r | |
341 | return TpmResponse;\r | |
342 | \r | |
343 | case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r | |
344 | InData[0] = SwapBytes32 (TPM_SET_STCLEAR_DATA); // CapabilityArea\r | |
345 | InData[1] = SwapBytes32 (sizeof(UINT32)); // SubCapSize\r | |
346 | InData[2] = SwapBytes32 (TPM_SD_DEFERREDPHYSICALPRESENCE); // SubCap\r | |
347 | InData[3] = SwapBytes32 (sizeof(UINT32)); // SetValueSize\r | |
348 | InData[4] = SwapBytes32 (1); // UnownedFieldUpgrade; bit0\r | |
349 | return TpmCommandNoReturnData (\r | |
350 | TcgProtocol,\r | |
351 | TPM_ORD_SetCapability,\r | |
352 | sizeof (UINT32) * 5,\r | |
353 | InData\r | |
354 | );\r | |
355 | \r | |
356 | case PHYSICAL_PRESENCE_SET_OPERATOR_AUTH:\r | |
357 | //\r | |
358 | // TPM_SetOperatorAuth\r | |
359 | // This command requires UI to prompt user for Auth data\r | |
360 | // Here it is NOT implemented\r | |
361 | //\r | |
362 | return TPM_PP_BIOS_FAILURE;\r | |
363 | \r | |
364 | case PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE:\r | |
365 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_CLEAR, PpiFlags);\r | |
366 | if (TpmResponse == 0) {\r | |
367 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ENABLE_ACTIVATE, PpiFlags);\r | |
368 | }\r | |
369 | return TpmResponse;\r | |
370 | \r | |
371 | case PHYSICAL_PRESENCE_SET_NO_PPI_PROVISION_FALSE:\r | |
372 | *PpiFlags &= ~FLAG_NO_PPI_PROVISION;\r | |
373 | return 0;\r | |
374 | \r | |
375 | case PHYSICAL_PRESENCE_SET_NO_PPI_PROVISION_TRUE:\r | |
376 | *PpiFlags |= FLAG_NO_PPI_PROVISION;\r | |
377 | return 0;\r | |
378 | \r | |
379 | case PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_FALSE:\r | |
380 | *PpiFlags &= ~FLAG_NO_PPI_CLEAR;\r | |
381 | return 0;\r | |
382 | \r | |
383 | case PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_TRUE:\r | |
384 | *PpiFlags |= FLAG_NO_PPI_CLEAR;\r | |
385 | return 0;\r | |
386 | \r | |
387 | case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_FALSE:\r | |
388 | *PpiFlags &= ~FLAG_NO_PPI_MAINTENANCE;\r | |
389 | return 0;\r | |
390 | \r | |
391 | case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_TRUE:\r | |
392 | *PpiFlags |= FLAG_NO_PPI_MAINTENANCE;\r | |
393 | return 0;\r | |
394 | \r | |
395 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r | |
396 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ENABLE_ACTIVATE, PpiFlags);\r | |
397 | if (TpmResponse == 0) {\r | |
398 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_CLEAR, PpiFlags);\r | |
399 | }\r | |
400 | return TpmResponse;\r | |
401 | \r | |
402 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE:\r | |
403 | //\r | |
404 | // PHYSICAL_PRESENCE_ENABLE_ACTIVATE + PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE\r | |
405 | // PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE will be executed atfer reboot.\r | |
406 | //\r | |
407 | if ((*PpiFlags & FLAG_RESET_TRACK) == 0) {\r | |
408 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_ENABLE_ACTIVATE, PpiFlags);\r | |
409 | *PpiFlags |= FLAG_RESET_TRACK;\r | |
410 | } else {\r | |
411 | TpmResponse = ExecutePhysicalPresence (TcgProtocol, PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE, PpiFlags);\r | |
412 | *PpiFlags &= ~FLAG_RESET_TRACK;\r | |
413 | } \r | |
414 | return TpmResponse;\r | |
415 | \r | |
416 | default:\r | |
417 | ;\r | |
418 | }\r | |
419 | return TPM_PP_BIOS_FAILURE;\r | |
420 | }\r | |
421 | \r | |
422 | \r | |
423 | /**\r | |
424 | Read the specified key for user confirmation.\r | |
425 | \r | |
426 | @param[in] CautionKey If true, F12 is used as confirm key;\r | |
427 | If false, F10 is used as confirm key.\r | |
428 | \r | |
429 | @retval TRUE User confirmed the changes by input.\r | |
430 | @retval FALSE User discarded the changes.\r | |
431 | \r | |
432 | **/\r | |
433 | BOOLEAN\r | |
434 | ReadUserKey (\r | |
435 | IN BOOLEAN CautionKey\r | |
436 | )\r | |
437 | {\r | |
438 | EFI_STATUS Status;\r | |
439 | EFI_INPUT_KEY Key;\r | |
440 | UINT16 InputKey;\r | |
441 | \r | |
442 | InputKey = 0; \r | |
443 | do {\r | |
444 | Status = gBS->CheckEvent (gST->ConIn->WaitForKey);\r | |
445 | if (!EFI_ERROR (Status)) {\r | |
446 | Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);\r | |
447 | if (Key.ScanCode == SCAN_ESC) {\r | |
448 | InputKey = Key.ScanCode;\r | |
449 | }\r | |
450 | if ((Key.ScanCode == SCAN_F10) && !CautionKey) {\r | |
451 | InputKey = Key.ScanCode;\r | |
452 | }\r | |
453 | if ((Key.ScanCode == SCAN_F12) && CautionKey) {\r | |
454 | InputKey = Key.ScanCode;\r | |
455 | }\r | |
456 | } \r | |
457 | } while (InputKey == 0);\r | |
458 | \r | |
459 | if (InputKey != SCAN_ESC) {\r | |
460 | return TRUE;\r | |
461 | }\r | |
462 | \r | |
463 | return FALSE;\r | |
464 | }\r | |
465 | \r | |
466 | /**\r | |
467 | The constructor function register UNI strings into imageHandle.\r | |
468 | \r | |
469 | It will ASSERT() if that operation fails and it will always return EFI_SUCCESS. \r | |
470 | \r | |
471 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
472 | @param SystemTable A pointer to the EFI System Table.\r | |
473 | \r | |
474 | @retval EFI_SUCCESS The constructor successfully added string package.\r | |
475 | @retval Other value The constructor can't add string package.\r | |
476 | \r | |
477 | **/\r | |
478 | EFI_STATUS\r | |
479 | EFIAPI\r | |
480 | TcgPhysicalPresenceLibConstructor (\r | |
481 | IN EFI_HANDLE ImageHandle,\r | |
482 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
483 | )\r | |
484 | {\r | |
485 | mPpStringPackHandle = HiiAddPackages (&gEfiPhysicalPresenceGuid, ImageHandle, DxeTcgPhysicalPresenceLibStrings, NULL);\r | |
486 | ASSERT (mPpStringPackHandle != NULL);\r | |
487 | \r | |
488 | return EFI_SUCCESS;\r | |
489 | }\r | |
490 | \r | |
491 | /**\r | |
492 | Display the confirm text and get user confirmation.\r | |
493 | \r | |
494 | @param[in] TpmPpCommand The requested TPM physical presence command.\r | |
495 | \r | |
496 | @retval TRUE The user has confirmed the changes.\r | |
497 | @retval FALSE The user doesn't confirm the changes.\r | |
498 | **/\r | |
499 | BOOLEAN\r | |
500 | UserConfirm (\r | |
501 | IN UINT8 TpmPpCommand\r | |
502 | )\r | |
503 | {\r | |
504 | CHAR16 *ConfirmText;\r | |
505 | CHAR16 *TmpStr1;\r | |
506 | CHAR16 *TmpStr2; \r | |
507 | UINTN BufSize;\r | |
508 | BOOLEAN CautionKey;\r | |
509 | UINT16 Index;\r | |
510 | CHAR16 DstStr[81];\r | |
511 | \r | |
512 | TmpStr2 = NULL;\r | |
513 | CautionKey = FALSE;\r | |
514 | BufSize = CONFIRM_BUFFER_SIZE;\r | |
515 | ConfirmText = AllocateZeroPool (BufSize);\r | |
516 | ASSERT (ConfirmText != NULL);\r | |
517 | \r | |
518 | switch (TpmPpCommand) {\r | |
519 | case PHYSICAL_PRESENCE_ENABLE:\r | |
520 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ENABLE));\r | |
521 | \r | |
522 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
523 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
524 | FreePool (TmpStr1);\r | |
525 | \r | |
526 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
527 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
528 | FreePool (TmpStr1);\r | |
529 | break;\r | |
530 | \r | |
531 | case PHYSICAL_PRESENCE_DISABLE:\r | |
532 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DISABLE));\r | |
533 | \r | |
534 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
535 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
536 | FreePool (TmpStr1);\r | |
537 | \r | |
538 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r | |
539 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
540 | FreePool (TmpStr1);\r | |
541 | \r | |
542 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
543 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
544 | FreePool (TmpStr1);\r | |
545 | break;\r | |
546 | \r | |
547 | case PHYSICAL_PRESENCE_ACTIVATE:\r | |
548 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACTIVATE));\r | |
549 | \r | |
550 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
551 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
552 | FreePool (TmpStr1);\r | |
553 | \r | |
554 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
555 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
556 | FreePool (TmpStr1);\r | |
557 | break;\r | |
558 | \r | |
559 | case PHYSICAL_PRESENCE_DEACTIVATE:\r | |
560 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DEACTIVATE));\r | |
561 | \r | |
562 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
563 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
564 | FreePool (TmpStr1);\r | |
565 | \r | |
566 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r | |
567 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
568 | FreePool (TmpStr1);\r | |
569 | \r | |
570 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
571 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
572 | FreePool (TmpStr1); \r | |
573 | break;\r | |
574 | \r | |
575 | case PHYSICAL_PRESENCE_CLEAR:\r | |
576 | CautionKey = TRUE;\r | |
577 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CLEAR));\r | |
578 | \r | |
579 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
580 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
581 | FreePool (TmpStr1);\r | |
582 | \r | |
583 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r | |
584 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
585 | StrnCat (ConfirmText, L" \n\n", (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
586 | FreePool (TmpStr1); \r | |
587 | \r | |
588 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
589 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
590 | FreePool (TmpStr1);\r | |
591 | break;\r | |
592 | \r | |
593 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE:\r | |
594 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ENABLE_ACTIVATE));\r | |
595 | \r | |
596 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
597 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
598 | FreePool (TmpStr1);\r | |
599 | \r | |
600 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_ON));\r | |
601 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
602 | FreePool (TmpStr1);\r | |
603 | \r | |
604 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
605 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
606 | FreePool (TmpStr1);\r | |
607 | break;\r | |
608 | \r | |
609 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE:\r | |
610 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DEACTIVATE_DISABLE));\r | |
611 | \r | |
612 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r | |
613 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
614 | FreePool (TmpStr1);\r | |
615 | \r | |
616 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_OFF));\r | |
617 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
618 | FreePool (TmpStr1);\r | |
619 | \r | |
620 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r | |
621 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
622 | FreePool (TmpStr1);\r | |
623 | \r | |
624 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
625 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
626 | FreePool (TmpStr1);\r | |
627 | break;\r | |
628 | \r | |
629 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE:\r | |
630 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ALLOW_TAKE_OWNERSHIP));\r | |
631 | \r | |
632 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r | |
633 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
634 | FreePool (TmpStr1);\r | |
635 | \r | |
636 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
637 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
638 | FreePool (TmpStr1);\r | |
639 | break;\r | |
640 | \r | |
641 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_FALSE:\r | |
642 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_DISALLOW_TAKE_OWNERSHIP));\r | |
643 | \r | |
644 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r | |
645 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
646 | FreePool (TmpStr1);\r | |
647 | \r | |
648 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
649 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
650 | FreePool (TmpStr1);\r | |
651 | break;\r | |
652 | \r | |
653 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_OWNER_TRUE:\r | |
654 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_TURN_ON));\r | |
655 | \r | |
656 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
657 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
658 | FreePool (TmpStr1);\r | |
659 | \r | |
660 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_ON));\r | |
661 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
662 | FreePool (TmpStr1);\r | |
663 | \r | |
664 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
665 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
666 | FreePool (TmpStr1);\r | |
667 | break;\r | |
668 | \r | |
669 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE_OWNER_FALSE:\r | |
670 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_TURN_OFF));\r | |
671 | \r | |
672 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR)); \r | |
673 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
674 | FreePool (TmpStr1);\r | |
675 | \r | |
676 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_OFF));\r | |
677 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
678 | FreePool (TmpStr1);\r | |
679 | \r | |
680 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING));\r | |
681 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
682 | FreePool (TmpStr1);\r | |
683 | \r | |
684 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
685 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
686 | FreePool (TmpStr1);\r | |
687 | break;\r | |
688 | \r | |
689 | case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r | |
690 | CautionKey = TRUE;\r | |
691 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_UNOWNED_FIELD_UPGRADE));\r | |
692 | \r | |
693 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_UPGRADE_HEAD_STR)); \r | |
694 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
695 | FreePool (TmpStr1);\r | |
696 | \r | |
697 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_MAINTAIN));\r | |
698 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
699 | FreePool (TmpStr1);\r | |
700 | \r | |
701 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
702 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
703 | FreePool (TmpStr1);\r | |
704 | break;\r | |
705 | \r | |
706 | case PHYSICAL_PRESENCE_SET_OPERATOR_AUTH:\r | |
707 | //\r | |
708 | // TPM_SetOperatorAuth\r | |
709 | // This command requires UI to prompt user for Auth data\r | |
710 | // Here it is NOT implemented\r | |
711 | //\r | |
712 | break;\r | |
713 | \r | |
714 | case PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE:\r | |
715 | CautionKey = TRUE;\r | |
716 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CLEAR_TURN_ON));\r | |
717 | \r | |
718 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
719 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
720 | FreePool (TmpStr1);\r | |
721 | \r | |
722 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_ON));\r | |
723 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
724 | FreePool (TmpStr1);\r | |
725 | \r | |
726 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r | |
727 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
728 | FreePool (TmpStr1);\r | |
729 | \r | |
730 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR_CONT));\r | |
731 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
732 | FreePool (TmpStr1);\r | |
733 | \r | |
734 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
735 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
736 | FreePool (TmpStr1);\r | |
737 | break;\r | |
738 | \r | |
739 | case PHYSICAL_PRESENCE_SET_NO_PPI_PROVISION_TRUE:\r | |
740 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NO_PPI_PROVISION));\r | |
741 | \r | |
742 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_PPI_HEAD_STR));\r | |
743 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
744 | FreePool (TmpStr1);\r | |
745 | \r | |
746 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ACCEPT_KEY));\r | |
747 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
748 | FreePool (TmpStr1);\r | |
749 | \r | |
750 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NO_PPI_INFO));\r | |
751 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
752 | FreePool (TmpStr1);\r | |
753 | break;\r | |
754 | \r | |
755 | case PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_TRUE:\r | |
756 | CautionKey = TRUE;\r | |
757 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CLEAR));\r | |
758 | \r | |
759 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_PPI_HEAD_STR));\r | |
760 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
761 | FreePool (TmpStr1);\r | |
762 | \r | |
763 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_CLEAR));\r | |
764 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
765 | FreePool (TmpStr1);\r | |
766 | \r | |
767 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r | |
768 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
769 | StrnCat (ConfirmText, L" \n\n", (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
770 | FreePool (TmpStr1); \r | |
771 | \r | |
772 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
773 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
774 | FreePool (TmpStr1);\r | |
775 | \r | |
776 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NO_PPI_INFO));\r | |
777 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
778 | FreePool (TmpStr1);\r | |
779 | break;\r | |
780 | \r | |
781 | case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_TRUE:\r | |
782 | CautionKey = TRUE;\r | |
783 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NO_PPI_MAINTAIN));\r | |
784 | \r | |
785 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_PPI_HEAD_STR));\r | |
786 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
787 | FreePool (TmpStr1);\r | |
788 | \r | |
789 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_MAINTAIN));\r | |
790 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
791 | FreePool (TmpStr1);\r | |
792 | \r | |
793 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
794 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
795 | FreePool (TmpStr1);\r | |
796 | \r | |
797 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NO_PPI_INFO));\r | |
798 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
799 | FreePool (TmpStr1);\r | |
800 | break;\r | |
801 | \r | |
802 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r | |
803 | CautionKey = TRUE;\r | |
804 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ENABLE_ACTIVATE_CLEAR));\r | |
805 | \r | |
806 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
807 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
808 | FreePool (TmpStr1);\r | |
809 | \r | |
810 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r | |
811 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
812 | StrnCat (ConfirmText, L" \n\n", (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
813 | FreePool (TmpStr1);\r | |
814 | \r | |
815 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
816 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
817 | FreePool (TmpStr1);\r | |
818 | break;\r | |
819 | \r | |
820 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE:\r | |
821 | CautionKey = TRUE;\r | |
822 | TmpStr2 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE));\r | |
823 | \r | |
824 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_HEAD_STR));\r | |
825 | UnicodeSPrint (ConfirmText, BufSize, TmpStr1, TmpStr2);\r | |
826 | FreePool (TmpStr1);\r | |
827 | \r | |
828 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_NOTE_ON));\r | |
829 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
830 | FreePool (TmpStr1);\r | |
831 | \r | |
832 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR));\r | |
833 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
834 | FreePool (TmpStr1);\r | |
835 | \r | |
836 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_WARNING_CLEAR_CONT));\r | |
837 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
838 | FreePool (TmpStr1);\r | |
839 | \r | |
840 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_CAUTION_KEY));\r | |
841 | StrnCat (ConfirmText, TmpStr1, (BufSize / sizeof (CHAR16 *)) - StrLen (ConfirmText) - 1);\r | |
842 | FreePool (TmpStr1);\r | |
843 | break;\r | |
844 | \r | |
845 | default:\r | |
846 | ;\r | |
847 | }\r | |
848 | \r | |
849 | if (TmpStr2 == NULL) {\r | |
850 | FreePool (ConfirmText);\r | |
851 | return FALSE;\r | |
852 | }\r | |
853 | \r | |
854 | TmpStr1 = PhysicalPresenceGetStringById (STRING_TOKEN (TPM_REJECT_KEY));\r | |
855 | BufSize -= StrSize (ConfirmText);\r | |
856 | UnicodeSPrint (ConfirmText + StrLen (ConfirmText), BufSize, TmpStr1, TmpStr2);\r | |
857 | \r | |
858 | DstStr[80] = L'\0';\r | |
859 | for (Index = 0; Index < StrLen (ConfirmText); Index += 80) {\r | |
860 | StrnCpy(DstStr, ConfirmText + Index, 80); \r | |
861 | Print (DstStr); \r | |
862 | }\r | |
863 | \r | |
864 | FreePool (TmpStr1);\r | |
865 | FreePool (TmpStr2);\r | |
866 | FreePool (ConfirmText);\r | |
867 | \r | |
868 | if (ReadUserKey (CautionKey)) {\r | |
869 | return TRUE;\r | |
870 | }\r | |
871 | \r | |
872 | return FALSE; \r | |
873 | }\r | |
874 | \r | |
875 | /**\r | |
876 | Check and execute the requested physical presence command.\r | |
877 | \r | |
878 | @param[in] TcgProtocol EFI TCG Protocol instance. \r | |
879 | @param[in] TcgPpData Point to the physical presence NV variable.\r | |
880 | \r | |
881 | **/\r | |
882 | VOID\r | |
883 | ExecutePendingTpmRequest (\r | |
884 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
885 | IN EFI_PHYSICAL_PRESENCE *TcgPpData\r | |
886 | )\r | |
887 | {\r | |
888 | EFI_STATUS Status;\r | |
889 | UINTN DataSize;\r | |
890 | UINT8 Flags;\r | |
891 | BOOLEAN RequestConfirmed;\r | |
892 | \r | |
893 | Flags = TcgPpData->Flags;\r | |
894 | RequestConfirmed = FALSE; \r | |
895 | switch (TcgPpData->PPRequest) {\r | |
896 | case PHYSICAL_PRESENCE_NO_ACTION:\r | |
897 | return;\r | |
898 | case PHYSICAL_PRESENCE_ENABLE:\r | |
899 | case PHYSICAL_PRESENCE_DISABLE:\r | |
900 | case PHYSICAL_PRESENCE_ACTIVATE:\r | |
901 | case PHYSICAL_PRESENCE_DEACTIVATE:\r | |
902 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE:\r | |
903 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE:\r | |
904 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_TRUE:\r | |
905 | case PHYSICAL_PRESENCE_SET_OWNER_INSTALL_FALSE:\r | |
906 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_OWNER_TRUE:\r | |
907 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE_OWNER_FALSE:\r | |
908 | case PHYSICAL_PRESENCE_SET_OPERATOR_AUTH:\r | |
909 | if ((Flags & FLAG_NO_PPI_PROVISION) != 0) {\r | |
910 | RequestConfirmed = TRUE;\r | |
911 | }\r | |
912 | break;\r | |
913 | \r | |
914 | case PHYSICAL_PRESENCE_CLEAR:\r | |
915 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r | |
916 | if ((Flags & FLAG_NO_PPI_CLEAR) != 0) {\r | |
917 | RequestConfirmed = TRUE;\r | |
918 | }\r | |
919 | break;\r | |
920 | \r | |
921 | case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r | |
922 | if ((Flags & FLAG_NO_PPI_MAINTENANCE) != 0) {\r | |
923 | RequestConfirmed = TRUE;\r | |
924 | }\r | |
925 | break;\r | |
926 | \r | |
927 | case PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE:\r | |
928 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE:\r | |
929 | if ((Flags & FLAG_NO_PPI_CLEAR) != 0 && (Flags & FLAG_NO_PPI_PROVISION) != 0) {\r | |
930 | RequestConfirmed = TRUE;\r | |
931 | }\r | |
932 | break; \r | |
933 | \r | |
934 | case PHYSICAL_PRESENCE_SET_NO_PPI_PROVISION_FALSE:\r | |
935 | case PHYSICAL_PRESENCE_SET_NO_PPI_CLEAR_FALSE:\r | |
936 | case PHYSICAL_PRESENCE_SET_NO_PPI_MAINTENANCE_FALSE:\r | |
937 | RequestConfirmed = TRUE;\r | |
938 | break;\r | |
939 | \r | |
940 | default:\r | |
941 | //\r | |
942 | // Invalid operation request.\r | |
943 | //\r | |
944 | TcgPpData->PPResponse = TPM_PP_BIOS_FAILURE;\r | |
945 | TcgPpData->LastPPRequest = TcgPpData->PPRequest;\r | |
946 | TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION;\r | |
947 | DataSize = sizeof (EFI_PHYSICAL_PRESENCE);\r | |
948 | Status = gRT->SetVariable (\r | |
949 | PHYSICAL_PRESENCE_VARIABLE,\r | |
950 | &gEfiPhysicalPresenceGuid,\r | |
951 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
952 | DataSize,\r | |
953 | TcgPpData\r | |
954 | );\r | |
955 | return;\r | |
956 | }\r | |
957 | \r | |
958 | if ((Flags & FLAG_RESET_TRACK) != 0) {\r | |
959 | //\r | |
960 | // It had been confirmed in last boot, it doesn't need confirm again.\r | |
961 | //\r | |
962 | RequestConfirmed = TRUE;\r | |
963 | }\r | |
964 | \r | |
965 | if (!RequestConfirmed) {\r | |
966 | //\r | |
967 | // Print confirm text and wait for approval. \r | |
968 | //\r | |
969 | RequestConfirmed = UserConfirm (TcgPpData->PPRequest);\r | |
970 | }\r | |
971 | \r | |
972 | //\r | |
973 | // Execute requested physical presence command\r | |
974 | //\r | |
975 | TcgPpData->PPResponse = TPM_PP_USER_ABORT;\r | |
976 | if (RequestConfirmed) {\r | |
977 | TcgPpData->PPResponse = ExecutePhysicalPresence (TcgProtocol, TcgPpData->PPRequest, &TcgPpData->Flags);\r | |
978 | }\r | |
979 | \r | |
980 | //\r | |
981 | // Clear request\r | |
982 | //\r | |
983 | if ((TcgPpData->Flags & FLAG_RESET_TRACK) == 0) {\r | |
984 | TcgPpData->LastPPRequest = TcgPpData->PPRequest;\r | |
985 | TcgPpData->PPRequest = PHYSICAL_PRESENCE_NO_ACTION; \r | |
986 | }\r | |
987 | \r | |
988 | //\r | |
989 | // Save changes\r | |
990 | //\r | |
991 | DataSize = sizeof (EFI_PHYSICAL_PRESENCE);\r | |
992 | Status = gRT->SetVariable (\r | |
993 | PHYSICAL_PRESENCE_VARIABLE,\r | |
994 | &gEfiPhysicalPresenceGuid,\r | |
995 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
996 | DataSize,\r | |
997 | TcgPpData\r | |
998 | );\r | |
999 | if (EFI_ERROR (Status)) {\r | |
1000 | return;\r | |
1001 | }\r | |
1002 | \r | |
1003 | if (TcgPpData->PPResponse == TPM_PP_USER_ABORT) {\r | |
1004 | return;\r | |
1005 | }\r | |
1006 | \r | |
1007 | //\r | |
1008 | // Reset system to make new TPM settings in effect\r | |
1009 | //\r | |
1010 | switch (TcgPpData->LastPPRequest) {\r | |
1011 | case PHYSICAL_PRESENCE_ACTIVATE:\r | |
1012 | case PHYSICAL_PRESENCE_DEACTIVATE:\r | |
1013 | case PHYSICAL_PRESENCE_CLEAR:\r | |
1014 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE:\r | |
1015 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE:\r | |
1016 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_OWNER_TRUE:\r | |
1017 | case PHYSICAL_PRESENCE_DEACTIVATE_DISABLE_OWNER_FALSE:\r | |
1018 | case PHYSICAL_PRESENCE_DEFERRED_PP_UNOWNERED_FIELD_UPGRADE:\r | |
1019 | case PHYSICAL_PRESENCE_CLEAR_ENABLE_ACTIVATE:\r | |
1020 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR:\r | |
1021 | case PHYSICAL_PRESENCE_ENABLE_ACTIVATE_CLEAR_ENABLE_ACTIVATE: \r | |
1022 | break;\r | |
1023 | default:\r | |
1024 | if (TcgPpData->PPRequest != PHYSICAL_PRESENCE_NO_ACTION) {\r | |
1025 | break;\r | |
1026 | }\r | |
1027 | return;\r | |
1028 | }\r | |
1029 | \r | |
1030 | Print (L"Rebooting system to make TPM settings in effect\n");\r | |
1031 | gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);\r | |
1032 | ASSERT (FALSE); \r | |
1033 | }\r | |
1034 | \r | |
1035 | /**\r | |
1036 | Check and execute the pending TPM request and Lock TPM.\r | |
1037 | \r | |
1038 | The TPM request may come from OS or BIOS. This API will display request information and wait \r | |
1039 | for user confirmation if TPM request exists. The TPM request will be sent to TPM device after\r | |
1040 | the TPM request is confirmed, and one or more reset may be required to make TPM request to \r | |
1041 | take effect. At last, it will lock TPM to prevent TPM state change by malware.\r | |
1042 | \r | |
1043 | This API should be invoked after console in and console out are all ready as they are required\r | |
1044 | to display request information and get user input to confirm the request. This API should also \r | |
1045 | be invoked as early as possible as TPM is locked in this function.\r | |
1046 | \r | |
1047 | **/\r | |
1048 | VOID\r | |
1049 | EFIAPI\r | |
1050 | TcgPhysicalPresenceLibProcessRequest (\r | |
1051 | VOID\r | |
1052 | )\r | |
1053 | {\r | |
1054 | EFI_STATUS Status;\r | |
1055 | BOOLEAN LifetimeLock;\r | |
1056 | BOOLEAN CmdEnable;\r | |
1057 | UINTN DataSize;\r | |
1058 | EFI_PHYSICAL_PRESENCE TcgPpData;\r | |
1059 | EFI_TCG_PROTOCOL *TcgProtocol;\r | |
1060 | \r | |
1061 | Status = gBS->LocateProtocol (&gEfiTcgProtocolGuid, NULL, (VOID **)&TcgProtocol);\r | |
1062 | if (EFI_ERROR (Status)) {\r | |
1063 | return ;\r | |
1064 | }\r | |
1065 | \r | |
1066 | //\r | |
1067 | // Initialize physical presence variable.\r | |
1068 | //\r | |
1069 | DataSize = sizeof (EFI_PHYSICAL_PRESENCE);\r | |
1070 | Status = gRT->GetVariable (\r | |
1071 | PHYSICAL_PRESENCE_VARIABLE,\r | |
1072 | &gEfiPhysicalPresenceGuid,\r | |
1073 | NULL,\r | |
1074 | &DataSize,\r | |
1075 | &TcgPpData\r | |
1076 | );\r | |
1077 | if (EFI_ERROR (Status)) {\r | |
1078 | if (Status == EFI_NOT_FOUND) {\r | |
1079 | ZeroMem ((VOID*)&TcgPpData, sizeof (TcgPpData));\r | |
1080 | TcgPpData.Flags |= FLAG_NO_PPI_PROVISION;\r | |
1081 | DataSize = sizeof (EFI_PHYSICAL_PRESENCE);\r | |
1082 | Status = gRT->SetVariable (\r | |
1083 | PHYSICAL_PRESENCE_VARIABLE,\r | |
1084 | &gEfiPhysicalPresenceGuid,\r | |
1085 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
1086 | DataSize,\r | |
1087 | &TcgPpData\r | |
1088 | );\r | |
1089 | }\r | |
1090 | ASSERT_EFI_ERROR (Status);\r | |
1091 | }\r | |
1092 | \r | |
1093 | DEBUG ((EFI_D_INFO, "[TPM] Flags=%x, PPRequest=%x\n", TcgPpData.Flags, TcgPpData.PPRequest));\r | |
1094 | \r | |
1095 | Status = GetTpmCapability (TcgProtocol, &LifetimeLock, &CmdEnable);\r | |
1096 | if (EFI_ERROR (Status)) {\r | |
1097 | return ;\r | |
1098 | }\r | |
1099 | \r | |
1100 | if (!CmdEnable) {\r | |
1101 | if (LifetimeLock) {\r | |
1102 | //\r | |
1103 | // physicalPresenceCMDEnable is locked, can't execute physical presence command.\r | |
1104 | //\r | |
1105 | return ;\r | |
1106 | }\r | |
1107 | Status = TpmPhysicalPresence (TcgProtocol, TPM_PHYSICAL_PRESENCE_CMD_ENABLE);\r | |
1108 | if (EFI_ERROR (Status)) {\r | |
1109 | return ;\r | |
1110 | }\r | |
1111 | }\r | |
1112 | \r | |
1113 | //\r | |
1114 | // Set operator physical presence flags\r | |
1115 | //\r | |
1116 | TpmPhysicalPresence (TcgProtocol, TPM_PHYSICAL_PRESENCE_PRESENT);\r | |
1117 | \r | |
1118 | //\r | |
1119 | // Execute pending TPM request.\r | |
1120 | // \r | |
1121 | ExecutePendingTpmRequest (TcgProtocol, &TcgPpData);\r | |
1122 | DEBUG ((EFI_D_INFO, "[TPM] PPResponse = %x\n", TcgPpData.PPResponse));\r | |
1123 | \r | |
1124 | //\r | |
1125 | // Lock physical presence.\r | |
1126 | //\r | |
1127 | TpmPhysicalPresence (TcgProtocol, TPM_PHYSICAL_PRESENCE_NOTPRESENT | TPM_PHYSICAL_PRESENCE_LOCK);\r | |
1128 | }\r | |
1129 | \r |