]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | HII Config Access protocol implementation of TCG2 configuration module.\r | |
3 | NOTE: This module is only for reference only, each platform should have its own setup page.\r | |
4 | \r | |
5 | Copyright (c) 2015, 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 "Tcg2ConfigImpl.h"\r | |
17 | #include <Library/PcdLib.h>\r | |
18 | #include <Library/Tpm2CommandLib.h>\r | |
19 | #include <Guid/TpmInstance.h>\r | |
20 | \r | |
21 | #define EFI_TCG2_EVENT_LOG_FORMAT_ALL (EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 | EFI_TCG2_EVENT_LOG_FORMAT_TCG_2)\r | |
22 | \r | |
23 | TPM_INSTANCE_ID mTpmInstanceId[TPM_DEVICE_MAX + 1] = TPM_INSTANCE_ID_LIST;\r | |
24 | \r | |
25 | TCG2_CONFIG_PRIVATE_DATA *mTcg2ConfigPrivateDate;\r | |
26 | TCG2_CONFIG_PRIVATE_DATA mTcg2ConfigPrivateDateTemplate = {\r | |
27 | TCG2_CONFIG_PRIVATE_DATA_SIGNATURE,\r | |
28 | {\r | |
29 | Tcg2ExtractConfig,\r | |
30 | Tcg2RouteConfig,\r | |
31 | Tcg2Callback\r | |
32 | }\r | |
33 | };\r | |
34 | \r | |
35 | HII_VENDOR_DEVICE_PATH mTcg2HiiVendorDevicePath = {\r | |
36 | {\r | |
37 | {\r | |
38 | HARDWARE_DEVICE_PATH,\r | |
39 | HW_VENDOR_DP,\r | |
40 | {\r | |
41 | (UINT8) (sizeof (VENDOR_DEVICE_PATH)),\r | |
42 | (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)\r | |
43 | }\r | |
44 | },\r | |
45 | TCG2_CONFIG_FORM_SET_GUID\r | |
46 | },\r | |
47 | {\r | |
48 | END_DEVICE_PATH_TYPE,\r | |
49 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
50 | { \r | |
51 | (UINT8) (END_DEVICE_PATH_LENGTH),\r | |
52 | (UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)\r | |
53 | }\r | |
54 | }\r | |
55 | };\r | |
56 | \r | |
57 | UINT8 mCurrentPpRequest;\r | |
58 | \r | |
59 | /**\r | |
60 | This function allows a caller to extract the current configuration for one\r | |
61 | or more named elements from the target driver.\r | |
62 | \r | |
63 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
64 | @param[in] Request A null-terminated Unicode string in\r | |
65 | <ConfigRequest> format.\r | |
66 | @param[out] Progress On return, points to a character in the Request\r | |
67 | string. Points to the string's null terminator if\r | |
68 | request was successful. Points to the most recent\r | |
69 | '&' before the first failing name/value pair (or\r | |
70 | the beginning of the string if the failure is in\r | |
71 | the first name/value pair) if the request was not\r | |
72 | successful.\r | |
73 | @param[out] Results A null-terminated Unicode string in\r | |
74 | <ConfigAltResp> format which has all values filled\r | |
75 | in for the names in the Request string. String to\r | |
76 | be allocated by the called function.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS The Results is filled with the requested values.\r | |
79 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r | |
80 | @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r | |
81 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
82 | driver.\r | |
83 | \r | |
84 | **/\r | |
85 | EFI_STATUS\r | |
86 | EFIAPI\r | |
87 | Tcg2ExtractConfig (\r | |
88 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
89 | IN CONST EFI_STRING Request,\r | |
90 | OUT EFI_STRING *Progress,\r | |
91 | OUT EFI_STRING *Results\r | |
92 | )\r | |
93 | {\r | |
94 | if (Progress == NULL || Results == NULL) {\r | |
95 | return EFI_INVALID_PARAMETER;\r | |
96 | }\r | |
97 | \r | |
98 | *Progress = Request;\r | |
99 | return EFI_NOT_FOUND;\r | |
100 | }\r | |
101 | \r | |
102 | /**\r | |
103 | Save TPM request to variable space.\r | |
104 | \r | |
105 | @param[in] PpRequest Physical Presence request command.\r | |
106 | \r | |
107 | @retval EFI_SUCCESS The operation is finished successfully.\r | |
108 | @retval Others Other errors as indicated.\r | |
109 | \r | |
110 | **/\r | |
111 | EFI_STATUS\r | |
112 | SaveTcg2PpRequest (\r | |
113 | IN UINT8 PpRequest\r | |
114 | )\r | |
115 | {\r | |
116 | UINT32 ReturnCode;\r | |
117 | EFI_STATUS Status;\r | |
118 | \r | |
119 | ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (PpRequest, 0);\r | |
120 | if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r | |
121 | mCurrentPpRequest = PpRequest;\r | |
122 | Status = EFI_SUCCESS;\r | |
123 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r | |
124 | Status = EFI_OUT_OF_RESOURCES;\r | |
125 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r | |
126 | Status = EFI_UNSUPPORTED;\r | |
127 | } else {\r | |
128 | Status = EFI_DEVICE_ERROR;\r | |
129 | }\r | |
130 | \r | |
131 | return Status;\r | |
132 | }\r | |
133 | \r | |
134 | /**\r | |
135 | Save TPM request to variable space.\r | |
136 | \r | |
137 | @param[in] PpRequestParameter Physical Presence request parameter.\r | |
138 | \r | |
139 | @retval EFI_SUCCESS The operation is finished successfully.\r | |
140 | @retval Others Other errors as indicated.\r | |
141 | \r | |
142 | **/\r | |
143 | EFI_STATUS\r | |
144 | SaveTcg2PpRequestParameter (\r | |
145 | IN UINT32 PpRequestParameter\r | |
146 | )\r | |
147 | {\r | |
148 | UINT32 ReturnCode;\r | |
149 | EFI_STATUS Status;\r | |
150 | \r | |
151 | ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (mCurrentPpRequest, PpRequestParameter);\r | |
152 | if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r | |
153 | Status = EFI_SUCCESS;\r | |
154 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r | |
155 | Status = EFI_OUT_OF_RESOURCES;\r | |
156 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r | |
157 | Status = EFI_UNSUPPORTED;\r | |
158 | } else {\r | |
159 | Status = EFI_DEVICE_ERROR;\r | |
160 | }\r | |
161 | \r | |
162 | return Status;\r | |
163 | }\r | |
164 | \r | |
165 | /**\r | |
166 | Save Tcg2 PCR Banks request request to variable space.\r | |
167 | \r | |
168 | @param[in] PCRBankIndex PCR Bank Index.\r | |
169 | @param[in] Enable Enable or disable this PCR Bank.\r | |
170 | \r | |
171 | @retval EFI_SUCCESS The operation is finished successfully.\r | |
172 | @retval Others Other errors as indicated.\r | |
173 | \r | |
174 | **/\r | |
175 | EFI_STATUS\r | |
176 | SaveTcg2PCRBanksRequest (\r | |
177 | IN UINTN PCRBankIndex,\r | |
178 | IN BOOLEAN Enable\r | |
179 | )\r | |
180 | {\r | |
181 | UINT32 ReturnCode;\r | |
182 | EFI_STATUS Status;\r | |
183 | \r | |
184 | if (Enable) {\r | |
185 | mTcg2ConfigPrivateDate->PCRBanksDesired |= (0x1 << PCRBankIndex);\r | |
186 | } else {\r | |
187 | mTcg2ConfigPrivateDate->PCRBanksDesired &= ~(0x1 << PCRBankIndex);\r | |
188 | }\r | |
189 | \r | |
190 | ReturnCode = Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (TCG2_PHYSICAL_PRESENCE_SET_PCR_BANKS, mTcg2ConfigPrivateDate->PCRBanksDesired);\r | |
191 | if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {\r | |
192 | Status = EFI_SUCCESS;\r | |
193 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE) {\r | |
194 | Status = EFI_OUT_OF_RESOURCES;\r | |
195 | } else if (ReturnCode == TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED) {\r | |
196 | Status = EFI_UNSUPPORTED;\r | |
197 | } else {\r | |
198 | Status = EFI_DEVICE_ERROR;\r | |
199 | }\r | |
200 | \r | |
201 | return Status;\r | |
202 | }\r | |
203 | \r | |
204 | /**\r | |
205 | This function processes the results of changes in configuration.\r | |
206 | \r | |
207 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
208 | @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r | |
209 | format.\r | |
210 | @param[out] Progress A pointer to a string filled in with the offset of\r | |
211 | the most recent '&' before the first failing\r | |
212 | name/value pair (or the beginning of the string if\r | |
213 | the failure is in the first name/value pair) or\r | |
214 | the terminating NULL if all was successful.\r | |
215 | \r | |
216 | @retval EFI_SUCCESS The Results is processed successfully.\r | |
217 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
218 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in this\r | |
219 | driver.\r | |
220 | \r | |
221 | **/\r | |
222 | EFI_STATUS\r | |
223 | EFIAPI\r | |
224 | Tcg2RouteConfig (\r | |
225 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
226 | IN CONST EFI_STRING Configuration,\r | |
227 | OUT EFI_STRING *Progress\r | |
228 | )\r | |
229 | {\r | |
230 | if (Configuration == NULL || Progress == NULL) {\r | |
231 | return EFI_INVALID_PARAMETER;\r | |
232 | }\r | |
233 | \r | |
234 | return EFI_NOT_FOUND;\r | |
235 | }\r | |
236 | \r | |
237 | /**\r | |
238 | This function processes the results of changes in configuration.\r | |
239 | \r | |
240 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
241 | @param[in] Action Specifies the type of action taken by the browser.\r | |
242 | @param[in] QuestionId A unique value which is sent to the original\r | |
243 | exporting driver so that it can identify the type\r | |
244 | of data to expect.\r | |
245 | @param[in] Type The type of value for the question.\r | |
246 | @param[in] Value A pointer to the data being sent to the original\r | |
247 | exporting driver.\r | |
248 | @param[out] ActionRequest On return, points to the action requested by the\r | |
249 | callback function.\r | |
250 | \r | |
251 | @retval EFI_SUCCESS The callback successfully handled the action.\r | |
252 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r | |
253 | variable and its data.\r | |
254 | @retval EFI_DEVICE_ERROR The variable could not be saved.\r | |
255 | @retval EFI_UNSUPPORTED The specified Action is not supported by the\r | |
256 | callback.\r | |
257 | \r | |
258 | **/\r | |
259 | EFI_STATUS\r | |
260 | EFIAPI\r | |
261 | Tcg2Callback (\r | |
262 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
263 | IN EFI_BROWSER_ACTION Action,\r | |
264 | IN EFI_QUESTION_ID QuestionId,\r | |
265 | IN UINT8 Type,\r | |
266 | IN EFI_IFR_TYPE_VALUE *Value,\r | |
267 | OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r | |
268 | )\r | |
269 | {\r | |
270 | if ((This == NULL) || (Value == NULL) || (ActionRequest == NULL)) {\r | |
271 | return EFI_INVALID_PARAMETER;\r | |
272 | }\r | |
273 | \r | |
274 | if (Action == EFI_BROWSER_ACTION_CHANGED) {\r | |
275 | if (QuestionId == KEY_TPM_DEVICE) {\r | |
276 | return EFI_SUCCESS;\r | |
277 | }\r | |
278 | if (QuestionId == KEY_TPM2_OPERATION) {\r | |
279 | return SaveTcg2PpRequest (Value->u8);\r | |
280 | }\r | |
281 | if (QuestionId == KEY_TPM2_OPERATION_PARAMETER) {\r | |
282 | return SaveTcg2PpRequestParameter (Value->u32);\r | |
283 | }\r | |
284 | if ((QuestionId >= KEY_TPM2_PCR_BANKS_REQUEST_0) && (QuestionId <= KEY_TPM2_PCR_BANKS_REQUEST_4)) {\r | |
285 | SaveTcg2PCRBanksRequest (QuestionId - KEY_TPM2_PCR_BANKS_REQUEST_0, Value->b);\r | |
286 | }\r | |
287 | }\r | |
288 | \r | |
289 | return EFI_UNSUPPORTED;\r | |
290 | }\r | |
291 | \r | |
292 | /**\r | |
293 | Append Buffer With TpmAlgHash.\r | |
294 | \r | |
295 | @param[in] Buffer Buffer to be appended.\r | |
296 | @param[in] BufferSize Size of buffer.\r | |
297 | @param[in] TpmAlgHash TpmAlgHash.\r | |
298 | \r | |
299 | **/\r | |
300 | VOID\r | |
301 | AppendBufferWithTpmAlgHash (\r | |
302 | IN UINT16 *Buffer,\r | |
303 | IN UINTN BufferSize,\r | |
304 | IN UINT32 TpmAlgHash\r | |
305 | )\r | |
306 | {\r | |
307 | switch (TpmAlgHash) {\r | |
308 | case TPM_ALG_SHA1:\r | |
309 | if (Buffer[0] != 0) {\r | |
310 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
311 | }\r | |
312 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");\r | |
313 | break;\r | |
314 | case TPM_ALG_SHA256:\r | |
315 | if (Buffer[0] != 0) {\r | |
316 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
317 | }\r | |
318 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");\r | |
319 | break;\r | |
320 | case TPM_ALG_SHA384:\r | |
321 | if (Buffer[0] != 0) {\r | |
322 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
323 | }\r | |
324 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");\r | |
325 | break;\r | |
326 | case TPM_ALG_SHA512:\r | |
327 | if (Buffer[0] != 0) {\r | |
328 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
329 | }\r | |
330 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");\r | |
331 | break;\r | |
332 | case TPM_ALG_SM3_256:\r | |
333 | if (Buffer[0] != 0) {\r | |
334 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
335 | }\r | |
336 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");\r | |
337 | break;\r | |
338 | }\r | |
339 | }\r | |
340 | \r | |
341 | /**\r | |
342 | Fill Buffer With BootHashAlg.\r | |
343 | \r | |
344 | @param[in] Buffer Buffer to be filled.\r | |
345 | @param[in] BufferSize Size of buffer.\r | |
346 | @param[in] BootHashAlg BootHashAlg.\r | |
347 | \r | |
348 | **/\r | |
349 | VOID\r | |
350 | FillBufferWithBootHashAlg (\r | |
351 | IN UINT16 *Buffer,\r | |
352 | IN UINTN BufferSize,\r | |
353 | IN UINT32 BootHashAlg\r | |
354 | )\r | |
355 | {\r | |
356 | Buffer[0] = 0;\r | |
357 | if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA1) != 0) {\r | |
358 | if (Buffer[0] != 0) {\r | |
359 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
360 | }\r | |
361 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA1");\r | |
362 | }\r | |
363 | if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA256) != 0) {\r | |
364 | if (Buffer[0] != 0) {\r | |
365 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
366 | }\r | |
367 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA256");\r | |
368 | }\r | |
369 | if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA384) != 0) {\r | |
370 | if (Buffer[0] != 0) {\r | |
371 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
372 | }\r | |
373 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA384");\r | |
374 | }\r | |
375 | if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SHA512) != 0) {\r | |
376 | if (Buffer[0] != 0) {\r | |
377 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
378 | }\r | |
379 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SHA512");\r | |
380 | }\r | |
381 | if ((BootHashAlg & EFI_TCG2_BOOT_HASH_ALG_SM3_256) != 0) {\r | |
382 | if (Buffer[0] != 0) {\r | |
383 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
384 | }\r | |
385 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"SM3_256");\r | |
386 | }\r | |
387 | }\r | |
388 | \r | |
389 | /**\r | |
390 | Set ConfigInfo according to TpmAlgHash.\r | |
391 | \r | |
392 | @param[in,out] Tcg2ConfigInfo TCG2 config info.\r | |
393 | @param[in] TpmAlgHash TpmAlgHash.\r | |
394 | \r | |
395 | **/\r | |
396 | VOID\r | |
397 | SetConfigInfo (\r | |
398 | IN OUT TCG2_CONFIGURATION_INFO *Tcg2ConfigInfo,\r | |
399 | IN UINT32 TpmAlgHash\r | |
400 | )\r | |
401 | {\r | |
402 | switch (TpmAlgHash) {\r | |
403 | case TPM_ALG_SHA1:\r | |
404 | Tcg2ConfigInfo->Sha1Supported = TRUE;\r | |
405 | break;\r | |
406 | case TPM_ALG_SHA256:\r | |
407 | Tcg2ConfigInfo->Sha256Supported = TRUE;\r | |
408 | break;\r | |
409 | case TPM_ALG_SHA384:\r | |
410 | Tcg2ConfigInfo->Sha384Supported = TRUE;\r | |
411 | break;\r | |
412 | case TPM_ALG_SHA512:\r | |
413 | Tcg2ConfigInfo->Sha512Supported = TRUE;\r | |
414 | break;\r | |
415 | case TPM_ALG_SM3_256:\r | |
416 | Tcg2ConfigInfo->Sm3Supported = TRUE;\r | |
417 | break;\r | |
418 | }\r | |
419 | }\r | |
420 | \r | |
421 | /**\r | |
422 | Fill Buffer With TCG2EventLogFormat.\r | |
423 | \r | |
424 | @param[in] Buffer Buffer to be filled.\r | |
425 | @param[in] BufferSize Size of buffer.\r | |
426 | @param[in] TCG2EventLogFormat TCG2EventLogFormat.\r | |
427 | \r | |
428 | **/\r | |
429 | VOID\r | |
430 | FillBufferWithTCG2EventLogFormat (\r | |
431 | IN UINT16 *Buffer,\r | |
432 | IN UINTN BufferSize,\r | |
433 | IN UINT32 TCG2EventLogFormat\r | |
434 | )\r | |
435 | {\r | |
436 | Buffer[0] = 0;\r | |
437 | if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2) != 0) {\r | |
438 | if (Buffer[0] != 0) {\r | |
439 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
440 | }\r | |
441 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_1_2");\r | |
442 | }\r | |
443 | if ((TCG2EventLogFormat & EFI_TCG2_EVENT_LOG_FORMAT_TCG_2) != 0) {\r | |
444 | if (Buffer[0] != 0) {\r | |
445 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
446 | }\r | |
447 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"TCG_2");\r | |
448 | }\r | |
449 | if ((TCG2EventLogFormat & (~EFI_TCG2_EVENT_LOG_FORMAT_ALL)) != 0) {\r | |
450 | if (Buffer[0] != 0) {\r | |
451 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L", ");\r | |
452 | }\r | |
453 | StrCatS (Buffer, BufferSize / sizeof (CHAR16), L"UNKNOWN");\r | |
454 | }\r | |
455 | }\r | |
456 | \r | |
457 | /**\r | |
458 | Check if buffer is all zero.\r | |
459 | \r | |
460 | @param[in] Buffer Buffer to be checked.\r | |
461 | @param[in] BufferSize Size of buffer to be checked.\r | |
462 | \r | |
463 | @retval TRUE Buffer is all zero.\r | |
464 | @retval FALSE Buffer is not all zero.\r | |
465 | **/\r | |
466 | BOOLEAN\r | |
467 | IsZeroBuffer (\r | |
468 | IN VOID *Buffer,\r | |
469 | IN UINTN BufferSize\r | |
470 | )\r | |
471 | {\r | |
472 | UINT8 *BufferData;\r | |
473 | UINTN Index;\r | |
474 | \r | |
475 | BufferData = Buffer;\r | |
476 | for (Index = 0; Index < BufferSize; Index++) {\r | |
477 | if (BufferData[Index] != 0) {\r | |
478 | return FALSE;\r | |
479 | }\r | |
480 | }\r | |
481 | return TRUE;\r | |
482 | }\r | |
483 | \r | |
484 | /**\r | |
485 | This function publish the TCG2 configuration Form for TPM device.\r | |
486 | \r | |
487 | @param[in, out] PrivateData Points to TCG2 configuration private data.\r | |
488 | \r | |
489 | @retval EFI_SUCCESS HII Form is installed for this network device.\r | |
490 | @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r | |
491 | @retval Others Other errors as indicated.\r | |
492 | \r | |
493 | **/\r | |
494 | EFI_STATUS\r | |
495 | InstallTcg2ConfigForm (\r | |
496 | IN OUT TCG2_CONFIG_PRIVATE_DATA *PrivateData\r | |
497 | )\r | |
498 | {\r | |
499 | EFI_STATUS Status;\r | |
500 | EFI_HII_HANDLE HiiHandle;\r | |
501 | EFI_HANDLE DriverHandle;\r | |
502 | EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;\r | |
503 | UINTN Index;\r | |
504 | TPML_PCR_SELECTION Pcrs;\r | |
505 | CHAR16 TempBuffer[1024];\r | |
506 | TCG2_CONFIGURATION_INFO Tcg2ConfigInfo;\r | |
507 | \r | |
508 | DriverHandle = NULL;\r | |
509 | ConfigAccess = &PrivateData->ConfigAccess;\r | |
510 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
511 | &DriverHandle,\r | |
512 | &gEfiDevicePathProtocolGuid,\r | |
513 | &mTcg2HiiVendorDevicePath,\r | |
514 | &gEfiHiiConfigAccessProtocolGuid,\r | |
515 | ConfigAccess,\r | |
516 | NULL\r | |
517 | );\r | |
518 | if (EFI_ERROR (Status)) {\r | |
519 | return Status;\r | |
520 | }\r | |
521 | \r | |
522 | PrivateData->DriverHandle = DriverHandle;\r | |
523 | \r | |
524 | //\r | |
525 | // Publish the HII package list\r | |
526 | //\r | |
527 | HiiHandle = HiiAddPackages (\r | |
528 | &gTcg2ConfigFormSetGuid,\r | |
529 | DriverHandle,\r | |
530 | Tcg2ConfigDxeStrings,\r | |
531 | Tcg2ConfigBin,\r | |
532 | NULL\r | |
533 | );\r | |
534 | if (HiiHandle == NULL) {\r | |
535 | gBS->UninstallMultipleProtocolInterfaces (\r | |
536 | DriverHandle,\r | |
537 | &gEfiDevicePathProtocolGuid,\r | |
538 | &mTcg2HiiVendorDevicePath,\r | |
539 | &gEfiHiiConfigAccessProtocolGuid,\r | |
540 | ConfigAccess,\r | |
541 | NULL\r | |
542 | ); \r | |
543 | \r | |
544 | return EFI_OUT_OF_RESOURCES;\r | |
545 | }\r | |
546 | \r | |
547 | PrivateData->HiiHandle = HiiHandle;\r | |
548 | \r | |
549 | //\r | |
550 | // Update static data\r | |
551 | //\r | |
552 | switch (PrivateData->TpmDeviceDetected) {\r | |
553 | case TPM_DEVICE_NULL:\r | |
554 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Not Found", NULL);\r | |
555 | break;\r | |
556 | case TPM_DEVICE_1_2:\r | |
557 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 1.2", NULL);\r | |
558 | break;\r | |
559 | case TPM_DEVICE_2_0_DTPM:\r | |
560 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"TPM 2.0 (DTPM)", NULL);\r | |
561 | break;\r | |
562 | default:\r | |
563 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_DEVICE_STATE_CONTENT), L"Unknown", NULL);\r | |
564 | break;\r | |
565 | }\r | |
566 | \r | |
567 | ZeroMem (&Tcg2ConfigInfo, sizeof(Tcg2ConfigInfo));\r | |
568 | Status = Tpm2GetCapabilityPcrs (&Pcrs);\r | |
569 | if (EFI_ERROR (Status)) {\r | |
570 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), L"[Unknown]", NULL);\r | |
571 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), L"[Unknown]", NULL);\r | |
572 | } else {\r | |
573 | TempBuffer[0] = 0;\r | |
574 | for (Index = 0; Index < Pcrs.count; Index++) {\r | |
575 | if (!IsZeroBuffer (Pcrs.pcrSelections[Index].pcrSelect, Pcrs.pcrSelections[Index].sizeofSelect)) {\r | |
576 | AppendBufferWithTpmAlgHash (TempBuffer, sizeof(TempBuffer), Pcrs.pcrSelections[Index].hash);\r | |
577 | }\r | |
578 | }\r | |
579 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_ACTIVE_HASH_ALGO_CONTENT), TempBuffer, NULL);\r | |
580 | \r | |
581 | TempBuffer[0] = 0;\r | |
582 | for (Index = 0; Index < Pcrs.count; Index++) {\r | |
583 | AppendBufferWithTpmAlgHash (TempBuffer, sizeof(TempBuffer), Pcrs.pcrSelections[Index].hash);\r | |
584 | SetConfigInfo (&Tcg2ConfigInfo, Pcrs.pcrSelections[Index].hash);\r | |
585 | }\r | |
586 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TPM2_SUPPORTED_HASH_ALGO_CONTENT), TempBuffer, NULL);\r | |
587 | }\r | |
588 | \r | |
589 | FillBufferWithBootHashAlg (TempBuffer, sizeof(TempBuffer), PcdGet32 (PcdTcg2HashAlgorithmBitmap));\r | |
590 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_BIOS_HASH_ALGO_CONTENT), TempBuffer, NULL);\r | |
591 | \r | |
592 | //\r | |
593 | // Tcg2 Capability\r | |
594 | //\r | |
595 | FillBufferWithTCG2EventLogFormat (TempBuffer, sizeof(TempBuffer), PrivateData->ProtocolCapability.SupportedEventLogs);\r | |
596 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_SUPPORTED_EVENT_LOG_FORMAT_CONTENT), TempBuffer, NULL);\r | |
597 | \r | |
598 | FillBufferWithBootHashAlg (TempBuffer, sizeof(TempBuffer), PrivateData->ProtocolCapability.HashAlgorithmBitmap);\r | |
599 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_HASH_ALGO_BITMAP_CONTENT), TempBuffer, NULL);\r | |
600 | \r | |
601 | UnicodeSPrint (TempBuffer, sizeof (TempBuffer), L"%d", PrivateData->ProtocolCapability.NumberOfPCRBanks);\r | |
602 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_NUMBER_OF_PCR_BANKS_CONTENT), TempBuffer, NULL);\r | |
603 | \r | |
604 | FillBufferWithBootHashAlg (TempBuffer, sizeof(TempBuffer), PrivateData->ProtocolCapability.ActivePcrBanks);\r | |
605 | HiiSetString (PrivateData->HiiHandle, STRING_TOKEN (STR_TCG2_ACTIVE_PCR_BANKS_CONTENT), TempBuffer, NULL);\r | |
606 | \r | |
607 | //\r | |
608 | // Set ConfigInfo, to control the check box.\r | |
609 | //\r | |
610 | Status = gRT->SetVariable (\r | |
611 | TCG2_STORAGE_INFO_NAME,\r | |
612 | &gTcg2ConfigFormSetGuid,\r | |
613 | EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
614 | sizeof(Tcg2ConfigInfo),\r | |
615 | &Tcg2ConfigInfo\r | |
616 | );\r | |
617 | if (EFI_ERROR (Status)) {\r | |
618 | DEBUG ((EFI_D_ERROR, "Tcg2ConfigDriver: Fail to set TCG2_STORAGE_INFO_NAME\n"));\r | |
619 | }\r | |
620 | return EFI_SUCCESS; \r | |
621 | }\r | |
622 | \r | |
623 | /**\r | |
624 | This function removes TCG2 configuration Form.\r | |
625 | \r | |
626 | @param[in, out] PrivateData Points to TCG2 configuration private data.\r | |
627 | \r | |
628 | **/\r | |
629 | VOID\r | |
630 | UninstallTcg2ConfigForm (\r | |
631 | IN OUT TCG2_CONFIG_PRIVATE_DATA *PrivateData\r | |
632 | )\r | |
633 | {\r | |
634 | //\r | |
635 | // Uninstall HII package list\r | |
636 | //\r | |
637 | if (PrivateData->HiiHandle != NULL) {\r | |
638 | HiiRemovePackages (PrivateData->HiiHandle);\r | |
639 | PrivateData->HiiHandle = NULL;\r | |
640 | }\r | |
641 | \r | |
642 | //\r | |
643 | // Uninstall HII Config Access Protocol\r | |
644 | //\r | |
645 | if (PrivateData->DriverHandle != NULL) {\r | |
646 | gBS->UninstallMultipleProtocolInterfaces (\r | |
647 | PrivateData->DriverHandle,\r | |
648 | &gEfiDevicePathProtocolGuid,\r | |
649 | &mTcg2HiiVendorDevicePath,\r | |
650 | &gEfiHiiConfigAccessProtocolGuid,\r | |
651 | &PrivateData->ConfigAccess,\r | |
652 | NULL\r | |
653 | );\r | |
654 | PrivateData->DriverHandle = NULL;\r | |
655 | }\r | |
656 | \r | |
657 | FreePool (PrivateData);\r | |
658 | }\r |