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0c18794e | 1 | /** @file\r |
2 | HII Config Access protocol implementation of TCG configuration module.\r | |
3 | \r | |
4 | Copyright (c) 2011, 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 "TcgConfigImpl.h"\r | |
16 | \r | |
0c18794e | 17 | CHAR16 mTcgStorageName[] = L"TCG_CONFIGURATION";\r |
18 | \r | |
19 | TCG_CONFIG_PRIVATE_DATA mTcgConfigPrivateDateTemplate = {\r | |
20 | TCG_CONFIG_PRIVATE_DATA_SIGNATURE,\r | |
21 | {\r | |
22 | TcgExtractConfig,\r | |
23 | TcgRouteConfig,\r | |
24 | TcgCallback\r | |
25 | }\r | |
26 | };\r | |
27 | \r | |
28 | HII_VENDOR_DEVICE_PATH mTcgHiiVendorDevicePath = {\r | |
29 | {\r | |
30 | {\r | |
31 | HARDWARE_DEVICE_PATH,\r | |
32 | HW_VENDOR_DP,\r | |
33 | {\r | |
34 | (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r | |
35 | (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r | |
36 | }\r | |
37 | },\r | |
a0c56a82 | 38 | TCG_CONFIG_FORM_SET_GUID\r |
0c18794e | 39 | },\r |
40 | {\r | |
41 | END_DEVICE_PATH_TYPE,\r | |
42 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
43 | { \r | |
44 | (UINT8) (END_DEVICE_PATH_LENGTH),\r | |
45 | (UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)\r | |
46 | }\r | |
47 | }\r | |
48 | };\r | |
49 | \r | |
50 | /**\r | |
51 | Get current state of TPM device.\r | |
52 | \r | |
53 | @param[in] TcgProtocol Point to EFI_TCG_PROTOCOL instance.\r | |
54 | @param[out] TpmEnable Flag to indicate TPM is enabled or not.\r | |
55 | @param[out] TpmActivate Flag to indicate TPM is activated or not.\r | |
56 | \r | |
57 | @retval EFI_SUCCESS State is successfully returned.\r | |
58 | @retval EFI_DEVICE_ERROR Failed to get TPM response.\r | |
59 | @retval Others Other errors as indicated.\r | |
60 | \r | |
61 | **/\r | |
62 | EFI_STATUS\r | |
63 | GetTpmState (\r | |
64 | IN EFI_TCG_PROTOCOL *TcgProtocol,\r | |
65 | OUT BOOLEAN *TpmEnable, OPTIONAL\r | |
66 | OUT BOOLEAN *TpmActivate OPTIONAL\r | |
67 | )\r | |
68 | {\r | |
69 | EFI_STATUS Status;\r | |
70 | TPM_RSP_COMMAND_HDR *TpmRsp;\r | |
71 | UINT32 TpmSendSize;\r | |
72 | TPM_PERMANENT_FLAGS *TpmPermanentFlags;\r | |
73 | UINT8 CmdBuf[64];\r | |
74 | \r | |
75 | ASSERT (TcgProtocol != NULL);\r | |
76 | \r | |
77 | //\r | |
78 | // Get TPM Permanent flags (TpmEnable, TpmActivate)\r | |
79 | //\r | |
80 | if ((TpmEnable != NULL) || (TpmActivate != NULL)) {\r | |
81 | TpmSendSize = sizeof (TPM_RQU_COMMAND_HDR) + sizeof (UINT32) * 3;\r | |
82 | *(UINT16*)&CmdBuf[0] = H2NS (TPM_TAG_RQU_COMMAND);\r | |
83 | *(UINT32*)&CmdBuf[2] = H2NL (TpmSendSize);\r | |
84 | *(UINT32*)&CmdBuf[6] = H2NL (TPM_ORD_GetCapability);\r | |
85 | \r | |
86 | *(UINT32*)&CmdBuf[10] = H2NL (TPM_CAP_FLAG);\r | |
87 | *(UINT32*)&CmdBuf[14] = H2NL (sizeof (TPM_CAP_FLAG_PERMANENT));\r | |
88 | *(UINT32*)&CmdBuf[18] = H2NL (TPM_CAP_FLAG_PERMANENT);\r | |
89 | \r | |
90 | Status = TcgProtocol->PassThroughToTpm (\r | |
91 | TcgProtocol,\r | |
92 | TpmSendSize,\r | |
93 | CmdBuf,\r | |
94 | sizeof (CmdBuf),\r | |
95 | CmdBuf\r | |
96 | ); \r | |
97 | TpmRsp = (TPM_RSP_COMMAND_HDR *) &CmdBuf[0];\r | |
98 | if (EFI_ERROR (Status) || (TpmRsp->tag != H2NS (TPM_TAG_RSP_COMMAND)) || (TpmRsp->returnCode != 0)) {\r | |
99 | return EFI_DEVICE_ERROR;\r | |
100 | }\r | |
101 | \r | |
102 | TpmPermanentFlags = (TPM_PERMANENT_FLAGS *) &CmdBuf[sizeof (TPM_RSP_COMMAND_HDR) + sizeof (UINT32)];\r | |
103 | \r | |
104 | if (TpmEnable != NULL) {\r | |
105 | *TpmEnable = (BOOLEAN) !TpmPermanentFlags->disable;\r | |
106 | }\r | |
107 | \r | |
108 | if (TpmActivate != NULL) {\r | |
109 | *TpmActivate = (BOOLEAN) !TpmPermanentFlags->deactivated;\r | |
110 | }\r | |
111 | }\r | |
112 | \r | |
113 | return EFI_SUCCESS; \r | |
114 | }\r | |
115 | \r | |
116 | /**\r | |
117 | This function allows a caller to extract the current configuration for one\r | |
118 | or more named elements from the target driver.\r | |
119 | \r | |
120 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
121 | @param[in] Request A null-terminated Unicode string in\r | |
122 | <ConfigRequest> format.\r | |
123 | @param[out] Progress On return, points to a character in the Request\r | |
124 | string. Points to the string's null terminator if\r | |
125 | request was successful. Points to the most recent\r | |
126 | '&' before the first failing name/value pair (or\r | |
127 | the beginning of the string if the failure is in\r | |
128 | the first name/value pair) if the request was not\r | |
129 | successful.\r | |
130 | @param[out] Results A null-terminated Unicode string in\r | |
131 | <ConfigAltResp> format which has all values filled\r | |
132 | in for the names in the Request string. String to\r | |
133 | be allocated by the called function.\r | |
134 | \r | |
135 | @retval EFI_SUCCESS The Results is filled with the requested values.\r | |
136 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r | |
137 | @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r | |
138 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
139 | driver.\r | |
140 | \r | |
141 | **/\r | |
142 | EFI_STATUS\r | |
143 | EFIAPI\r | |
144 | TcgExtractConfig (\r | |
145 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
146 | IN CONST EFI_STRING Request,\r | |
147 | OUT EFI_STRING *Progress,\r | |
148 | OUT EFI_STRING *Results\r | |
149 | )\r | |
150 | {\r | |
151 | EFI_STATUS Status;\r | |
152 | UINTN BufferSize;\r | |
153 | TCG_CONFIGURATION Configuration;\r | |
154 | TCG_CONFIG_PRIVATE_DATA *PrivateData;\r | |
155 | EFI_STRING ConfigRequestHdr;\r | |
156 | EFI_STRING ConfigRequest;\r | |
157 | BOOLEAN AllocatedRequest;\r | |
158 | UINTN Size;\r | |
159 | BOOLEAN TpmEnable;\r | |
160 | BOOLEAN TpmActivate;\r | |
161 | CHAR16 State[32];\r | |
162 | \r | |
163 | if (Progress == NULL || Results == NULL) {\r | |
164 | return EFI_INVALID_PARAMETER;\r | |
165 | }\r | |
166 | \r | |
167 | *Progress = Request;\r | |
a0c56a82 | 168 | if ((Request != NULL) && !HiiIsConfigHdrMatch (Request, &gTcgConfigFormSetGuid, mTcgStorageName)) {\r |
0c18794e | 169 | return EFI_NOT_FOUND;\r |
170 | }\r | |
171 | \r | |
172 | ConfigRequestHdr = NULL;\r | |
173 | ConfigRequest = NULL;\r | |
174 | AllocatedRequest = FALSE;\r | |
175 | Size = 0;\r | |
176 | \r | |
177 | PrivateData = TCG_CONFIG_PRIVATE_DATA_FROM_THIS (This);\r | |
178 | \r | |
179 | //\r | |
180 | // Convert buffer data to <ConfigResp> by helper function BlockToConfig()\r | |
181 | // \r | |
182 | ZeroMem (&Configuration, sizeof (TCG_CONFIGURATION));\r | |
183 | \r | |
184 | Configuration.MorState = PcdGetBool (PcdMorEnable);\r | |
185 | Configuration.TpmOperation = ENABLE;\r | |
81b7a609 | 186 | Configuration.HideTpm = (BOOLEAN) (PcdGetBool (PcdHideTpmSupport) && PcdGetBool (PcdHideTpm));\r |
0c18794e | 187 | //\r |
188 | // Read the original value of HideTpm from PrivateData which won't be changed by Setup in this boot.\r | |
189 | //\r | |
190 | Configuration.OriginalHideTpm = PrivateData->HideTpm;\r | |
191 | \r | |
192 | //\r | |
193 | // Display current TPM state.\r | |
194 | //\r | |
195 | if (PrivateData->TcgProtocol != NULL) {\r | |
196 | Status = GetTpmState (PrivateData->TcgProtocol, &TpmEnable, &TpmActivate);\r | |
197 | if (EFI_ERROR (Status)) {\r | |
198 | return Status;\r | |
199 | }\r | |
200 | \r | |
201 | UnicodeSPrint (\r | |
202 | State,\r | |
203 | sizeof (State),\r | |
204 | L"%s, and %s",\r | |
205 | TpmEnable ? L"Enabled" : L"Disabled",\r | |
206 | TpmActivate ? L"Activated" : L"Deactivated"\r | |
207 | );\r | |
208 | Configuration.TpmEnable = TpmEnable;\r | |
209 | Configuration.TpmActivate = TpmActivate;\r | |
210 | \r | |
211 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM_STATE_CONTENT), State, NULL);\r | |
212 | }\r | |
213 | \r | |
214 | BufferSize = sizeof (Configuration);\r | |
215 | ConfigRequest = Request;\r | |
216 | if ((Request == NULL) || (StrStr (Request, L"OFFSET") == NULL)) {\r | |
217 | //\r | |
218 | // Request has no request element, construct full request string.\r | |
219 | // Allocate and fill a buffer large enough to hold the <ConfigHdr> template\r | |
220 | // followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator\r | |
221 | //\r | |
a0c56a82 | 222 | ConfigRequestHdr = HiiConstructConfigHdr (&gTcgConfigFormSetGuid, mTcgStorageName, PrivateData->DriverHandle);\r |
0c18794e | 223 | Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);\r |
224 | ConfigRequest = AllocateZeroPool (Size);\r | |
225 | ASSERT (ConfigRequest != NULL);\r | |
226 | AllocatedRequest = TRUE;\r | |
227 | UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64) BufferSize);\r | |
228 | FreePool (ConfigRequestHdr);\r | |
229 | }\r | |
230 | \r | |
231 | Status = gHiiConfigRouting->BlockToConfig (\r | |
232 | gHiiConfigRouting,\r | |
233 | ConfigRequest,\r | |
234 | (UINT8 *) &Configuration,\r | |
235 | BufferSize,\r | |
236 | Results,\r | |
237 | Progress\r | |
238 | );\r | |
239 | //\r | |
240 | // Free the allocated config request string.\r | |
241 | //\r | |
242 | if (AllocatedRequest) {\r | |
243 | FreePool (ConfigRequest);\r | |
244 | }\r | |
245 | //\r | |
246 | // Set Progress string to the original request string.\r | |
247 | //\r | |
248 | if (Request == NULL) {\r | |
249 | *Progress = NULL;\r | |
250 | } else if (StrStr (Request, L"OFFSET") == NULL) {\r | |
251 | *Progress = Request + StrLen (Request);\r | |
252 | }\r | |
253 | \r | |
254 | return Status;\r | |
255 | }\r | |
256 | \r | |
257 | /**\r | |
258 | This function processes the results of changes in configuration.\r | |
259 | \r | |
260 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
261 | @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r | |
262 | format.\r | |
263 | @param[out] Progress A pointer to a string filled in with the offset of\r | |
264 | the most recent '&' before the first failing\r | |
265 | name/value pair (or the beginning of the string if\r | |
266 | the failure is in the first name/value pair) or\r | |
267 | the terminating NULL if all was successful.\r | |
268 | \r | |
269 | @retval EFI_SUCCESS The Results is processed successfully.\r | |
270 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
271 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
272 | driver.\r | |
273 | \r | |
274 | **/\r | |
275 | EFI_STATUS\r | |
276 | EFIAPI\r | |
277 | TcgRouteConfig (\r | |
278 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
279 | IN CONST EFI_STRING Configuration,\r | |
280 | OUT EFI_STRING *Progress\r | |
281 | )\r | |
282 | {\r | |
283 | EFI_STATUS Status;\r | |
284 | UINTN BufferSize;\r | |
285 | TCG_CONFIGURATION TcgConfiguration;\r | |
286 | \r | |
287 | if (Configuration == NULL || Progress == NULL) {\r | |
288 | return EFI_INVALID_PARAMETER;\r | |
289 | }\r | |
290 | \r | |
291 | *Progress = Configuration;\r | |
a0c56a82 | 292 | if (!HiiIsConfigHdrMatch (Configuration, &gTcgConfigFormSetGuid, mTcgStorageName)) {\r |
0c18794e | 293 | return EFI_NOT_FOUND;\r |
294 | }\r | |
295 | \r | |
296 | //\r | |
297 | // Convert <ConfigResp> to buffer data by helper function ConfigToBlock()\r | |
298 | //\r | |
299 | BufferSize = sizeof (TCG_CONFIGURATION);\r | |
300 | Status = gHiiConfigRouting->ConfigToBlock (\r | |
301 | gHiiConfigRouting,\r | |
302 | Configuration,\r | |
303 | (UINT8 *) &TcgConfiguration,\r | |
304 | &BufferSize,\r | |
305 | Progress\r | |
306 | );\r | |
307 | if (EFI_ERROR (Status)) {\r | |
308 | return Status;\r | |
309 | }\r | |
310 | \r | |
311 | PcdSetBool (PcdMorEnable, TcgConfiguration.MorState);\r | |
312 | PcdSetBool (PcdHideTpm, TcgConfiguration.HideTpm);\r | |
313 | \r | |
314 | return EFI_SUCCESS;\r | |
315 | }\r | |
316 | \r | |
317 | /**\r | |
318 | Save TPM request to variable space.\r | |
319 | \r | |
320 | @param[in] PpRequest Physical Presence request command.\r | |
321 | \r | |
322 | @retval EFI_SUCCESS The operation is finished successfully.\r | |
323 | @retval Others Other errors as indicated.\r | |
324 | \r | |
325 | **/\r | |
326 | EFI_STATUS\r | |
327 | SavePpRequest (\r | |
328 | IN UINT8 PpRequest\r | |
329 | )\r | |
330 | {\r | |
331 | EFI_STATUS Status;\r | |
332 | UINTN DataSize;\r | |
333 | EFI_PHYSICAL_PRESENCE PpData;\r | |
334 | \r | |
335 | //\r | |
336 | // Save TPM command to variable.\r | |
337 | //\r | |
338 | DataSize = sizeof (EFI_PHYSICAL_PRESENCE);\r | |
339 | Status = gRT->GetVariable (\r | |
340 | PHYSICAL_PRESENCE_VARIABLE,\r | |
341 | &gEfiPhysicalPresenceGuid,\r | |
342 | NULL,\r | |
343 | &DataSize,\r | |
344 | &PpData\r | |
345 | );\r | |
346 | if (EFI_ERROR (Status)) {\r | |
347 | return Status;\r | |
348 | } \r | |
349 | \r | |
350 | PpData.PPRequest = PpRequest;\r | |
351 | Status = gRT->SetVariable (\r | |
352 | PHYSICAL_PRESENCE_VARIABLE,\r | |
353 | &gEfiPhysicalPresenceGuid,\r | |
354 | EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
355 | DataSize,\r | |
356 | &PpData\r | |
357 | );\r | |
358 | if (EFI_ERROR(Status)) {\r | |
359 | return Status;\r | |
360 | }\r | |
361 | \r | |
362 | //\r | |
363 | // Reset system.\r | |
364 | //\r | |
365 | gRT->ResetSystem (EfiResetCold, EFI_SUCCESS, 0, NULL);\r | |
366 | \r | |
367 | return EFI_SUCCESS;\r | |
368 | }\r | |
369 | \r | |
370 | /**\r | |
371 | This function processes the results of changes in configuration.\r | |
372 | \r | |
373 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
374 | @param[in] Action Specifies the type of action taken by the browser.\r | |
375 | @param[in] QuestionId A unique value which is sent to the original\r | |
376 | exporting driver so that it can identify the type\r | |
377 | of data to expect.\r | |
378 | @param[in] Type The type of value for the question.\r | |
379 | @param[in] Value A pointer to the data being sent to the original\r | |
380 | exporting driver.\r | |
381 | @param[out] ActionRequest On return, points to the action requested by the\r | |
382 | callback function.\r | |
383 | \r | |
384 | @retval EFI_SUCCESS The callback successfully handled the action.\r | |
385 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r | |
386 | variable and its data.\r | |
387 | @retval EFI_DEVICE_ERROR The variable could not be saved.\r | |
388 | @retval EFI_UNSUPPORTED The specified Action is not supported by the\r | |
389 | callback.\r | |
390 | \r | |
391 | **/\r | |
392 | EFI_STATUS\r | |
393 | EFIAPI\r | |
394 | TcgCallback (\r | |
395 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
396 | IN EFI_BROWSER_ACTION Action,\r | |
397 | IN EFI_QUESTION_ID QuestionId,\r | |
398 | IN UINT8 Type,\r | |
399 | IN EFI_IFR_TYPE_VALUE *Value,\r | |
400 | OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r | |
401 | )\r | |
402 | {\r | |
403 | if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {\r | |
404 | return EFI_INVALID_PARAMETER;\r | |
405 | }\r | |
406 | \r | |
407 | if ((Action != EFI_BROWSER_ACTION_CHANGING) || (QuestionId != KEY_TPM_ACTION)) {\r | |
408 | return EFI_UNSUPPORTED;\r | |
409 | }\r | |
410 | \r | |
411 | SavePpRequest (Value->u8);\r | |
412 | ASSERT (FALSE);\r | |
413 | \r | |
414 | return EFI_SUCCESS;\r | |
415 | }\r | |
416 | \r | |
417 | /**\r | |
418 | This function publish the TCG configuration Form for TPM device.\r | |
419 | \r | |
420 | @param[in, out] PrivateData Points to TCG configuration private data.\r | |
421 | \r | |
422 | @retval EFI_SUCCESS HII Form is installed for this network device.\r | |
423 | @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r | |
424 | @retval Others Other errors as indicated.\r | |
425 | \r | |
426 | **/\r | |
427 | EFI_STATUS\r | |
428 | InstallTcgConfigForm (\r | |
429 | IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData\r | |
430 | )\r | |
431 | {\r | |
432 | EFI_STATUS Status;\r | |
433 | EFI_HII_HANDLE HiiHandle;\r | |
434 | EFI_HANDLE DriverHandle;\r | |
435 | VOID *StartOpCodeHandle;\r | |
436 | VOID *EndOpCodeHandle;\r | |
437 | EFI_IFR_GUID_LABEL *StartLabel;\r | |
438 | EFI_IFR_GUID_LABEL *EndLabel;\r | |
439 | \r | |
440 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
441 | \r | |
442 | DriverHandle = NULL;\r | |
443 | ConfigAccess = &PrivateData->ConfigAccess;\r | |
444 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
445 | &DriverHandle,\r | |
446 | &gEfiDevicePathProtocolGuid,\r | |
447 | &mTcgHiiVendorDevicePath,\r | |
448 | &gEfiHiiConfigAccessProtocolGuid,\r | |
449 | ConfigAccess,\r | |
450 | NULL\r | |
451 | );\r | |
452 | if (EFI_ERROR (Status)) {\r | |
453 | return Status;\r | |
454 | }\r | |
455 | \r | |
456 | PrivateData->DriverHandle = DriverHandle;\r | |
457 | \r | |
458 | //\r | |
459 | // Publish the HII package list\r | |
460 | //\r | |
461 | HiiHandle = HiiAddPackages (\r | |
a0c56a82 | 462 | &gTcgConfigFormSetGuid,\r |
0c18794e | 463 | DriverHandle,\r |
464 | TcgConfigDxeStrings,\r | |
465 | TcgConfigBin,\r | |
466 | NULL\r | |
467 | );\r | |
468 | if (HiiHandle == NULL) {\r | |
469 | gBS->UninstallMultipleProtocolInterfaces (\r | |
470 | DriverHandle,\r | |
471 | &gEfiDevicePathProtocolGuid,\r | |
472 | &mTcgHiiVendorDevicePath,\r | |
473 | &gEfiHiiConfigAccessProtocolGuid,\r | |
474 | ConfigAccess,\r | |
475 | NULL\r | |
476 | ); \r | |
477 | \r | |
478 | return EFI_OUT_OF_RESOURCES;\r | |
479 | }\r | |
480 | \r | |
481 | PrivateData->HiiHandle = HiiHandle;\r | |
482 | \r | |
483 | //\r | |
484 | // Remove the Hide TPM question from the IFR\r | |
485 | //\r | |
486 | if (!PcdGetBool (PcdHideTpmSupport)) {\r | |
487 | //\r | |
488 | // Allocate space for creation of UpdateData Buffer\r | |
489 | //\r | |
490 | StartOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
491 | ASSERT (StartOpCodeHandle != NULL);\r | |
492 | \r | |
493 | EndOpCodeHandle = HiiAllocateOpCodeHandle ();\r | |
494 | ASSERT (EndOpCodeHandle != NULL);\r | |
495 | \r | |
496 | //\r | |
497 | // Create Hii Extend Label OpCode as the start opcode\r | |
498 | //\r | |
499 | StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));\r | |
500 | StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
501 | StartLabel->Number = LABEL_TCG_CONFIGURATION_HIDETPM;\r | |
502 | \r | |
503 | //\r | |
504 | // Create Hii Extend Label OpCode as the end opcode\r | |
505 | //\r | |
506 | EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));\r | |
507 | EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
508 | EndLabel->Number = LABEL_END;\r | |
509 | \r | |
510 | HiiUpdateForm (HiiHandle, NULL, TCG_CONFIGURATION_FORM_ID, StartOpCodeHandle, EndOpCodeHandle);\r | |
511 | \r | |
512 | HiiFreeOpCodeHandle (StartOpCodeHandle);\r | |
513 | HiiFreeOpCodeHandle (EndOpCodeHandle);\r | |
514 | }\r | |
515 | \r | |
516 | return EFI_SUCCESS; \r | |
517 | }\r | |
518 | \r | |
519 | /**\r | |
520 | This function removes TCG configuration Form.\r | |
521 | \r | |
522 | @param[in, out] PrivateData Points to TCG configuration private data.\r | |
523 | \r | |
524 | **/\r | |
525 | VOID\r | |
526 | UninstallTcgConfigForm (\r | |
527 | IN OUT TCG_CONFIG_PRIVATE_DATA *PrivateData\r | |
528 | )\r | |
529 | {\r | |
530 | //\r | |
531 | // Uninstall HII package list\r | |
532 | //\r | |
533 | if (PrivateData->HiiHandle != NULL) {\r | |
534 | HiiRemovePackages (PrivateData->HiiHandle);\r | |
535 | PrivateData->HiiHandle = NULL;\r | |
536 | }\r | |
537 | \r | |
538 | //\r | |
539 | // Uninstall HII Config Access Protocol\r | |
540 | //\r | |
541 | if (PrivateData->DriverHandle != NULL) {\r | |
542 | gBS->UninstallMultipleProtocolInterfaces (\r | |
543 | PrivateData->DriverHandle,\r | |
544 | &gEfiDevicePathProtocolGuid,\r | |
545 | &mTcgHiiVendorDevicePath,\r | |
546 | &gEfiHiiConfigAccessProtocolGuid,\r | |
547 | &PrivateData->ConfigAccess,\r | |
548 | NULL\r | |
549 | );\r | |
550 | PrivateData->DriverHandle = NULL;\r | |
551 | }\r | |
552 | \r | |
553 | FreePool (PrivateData);\r | |
554 | }\r |