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7936fb6a | 1 | /** @file\r |
2 | Utility functions for expression evaluation.\r | |
3 | \r | |
b18e7050 | 4 | Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 5 | This program and the accompanying materials\r |
7936fb6a | 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 | |
7936fb6a | 15 | #include "Setup.h"\r |
16 | \r | |
17 | //\r | |
18 | // Global stack used to evaluate boolean expresions\r | |
19 | //\r | |
20 | EFI_HII_VALUE *mOpCodeScopeStack = NULL;\r | |
21 | EFI_HII_VALUE *mOpCodeScopeStackEnd = NULL;\r | |
22 | EFI_HII_VALUE *mOpCodeScopeStackPointer = NULL;\r | |
23 | \r | |
24 | EFI_HII_VALUE *mExpressionEvaluationStack = NULL;\r | |
25 | EFI_HII_VALUE *mExpressionEvaluationStackEnd = NULL;\r | |
26 | EFI_HII_VALUE *mExpressionEvaluationStackPointer = NULL;\r | |
2573712e LG |
27 | UINTN mExpressionEvaluationStackOffset = 0;\r |
28 | \r | |
29 | EFI_HII_VALUE *mCurrentExpressionStack = NULL;\r | |
30 | EFI_HII_VALUE *mCurrentExpressionEnd = NULL;\r | |
31 | EFI_HII_VALUE *mCurrentExpressionPointer = NULL;\r | |
32 | \r | |
33 | EFI_HII_VALUE *mMapExpressionListStack = NULL;\r | |
34 | EFI_HII_VALUE *mMapExpressionListEnd = NULL;\r | |
35 | EFI_HII_VALUE *mMapExpressionListPointer = NULL;\r | |
7936fb6a | 36 | \r |
37 | //\r | |
38 | // Unicode collation protocol interface\r | |
39 | //\r | |
40 | EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;\r | |
cbf73e50 | 41 | EFI_USER_MANAGER_PROTOCOL *mUserManager = NULL;\r |
7936fb6a | 42 | \r |
43 | /**\r | |
44 | Grow size of the stack.\r | |
45 | \r | |
46 | This is an internal function.\r | |
47 | \r | |
48 | @param Stack On input: old stack; On output: new stack\r | |
49 | @param StackPtr On input: old stack pointer; On output: new stack\r | |
50 | pointer\r | |
51 | @param StackEnd On input: old stack end; On output: new stack end\r | |
52 | \r | |
53 | @retval EFI_SUCCESS Grow stack success.\r | |
54 | @retval EFI_OUT_OF_RESOURCES No enough memory for stack space.\r | |
55 | \r | |
56 | **/\r | |
57 | EFI_STATUS\r | |
58 | GrowStack (\r | |
59 | IN OUT EFI_HII_VALUE **Stack,\r | |
60 | IN OUT EFI_HII_VALUE **StackPtr,\r | |
61 | IN OUT EFI_HII_VALUE **StackEnd\r | |
62 | )\r | |
63 | {\r | |
64 | UINTN Size;\r | |
65 | EFI_HII_VALUE *NewStack;\r | |
66 | \r | |
67 | Size = EXPRESSION_STACK_SIZE_INCREMENT;\r | |
68 | if (*StackPtr != NULL) {\r | |
69 | Size = Size + (*StackEnd - *Stack);\r | |
70 | }\r | |
71 | \r | |
72 | NewStack = AllocatePool (Size * sizeof (EFI_HII_VALUE));\r | |
73 | if (NewStack == NULL) {\r | |
74 | return EFI_OUT_OF_RESOURCES;\r | |
75 | }\r | |
76 | \r | |
77 | if (*StackPtr != NULL) {\r | |
78 | //\r | |
79 | // Copy from Old Stack to the New Stack\r | |
80 | //\r | |
81 | CopyMem (\r | |
82 | NewStack,\r | |
83 | *Stack,\r | |
84 | (*StackEnd - *Stack) * sizeof (EFI_HII_VALUE)\r | |
85 | );\r | |
86 | \r | |
87 | //\r | |
88 | // Free The Old Stack\r | |
89 | //\r | |
f4113e1f | 90 | FreePool (*Stack);\r |
7936fb6a | 91 | }\r |
92 | \r | |
93 | //\r | |
94 | // Make the Stack pointer point to the old data in the new stack\r | |
95 | //\r | |
96 | *StackPtr = NewStack + (*StackPtr - *Stack);\r | |
97 | *Stack = NewStack;\r | |
98 | *StackEnd = NewStack + Size;\r | |
99 | \r | |
100 | return EFI_SUCCESS;\r | |
101 | }\r | |
102 | \r | |
103 | \r | |
104 | /**\r | |
105 | Push an element onto the Boolean Stack.\r | |
106 | \r | |
107 | @param Stack On input: old stack; On output: new stack\r | |
108 | @param StackPtr On input: old stack pointer; On output: new stack\r | |
109 | pointer\r | |
110 | @param StackEnd On input: old stack end; On output: new stack end\r | |
111 | @param Data Data to push.\r | |
112 | \r | |
113 | @retval EFI_SUCCESS Push stack success.\r | |
114 | \r | |
115 | **/\r | |
116 | EFI_STATUS\r | |
117 | PushStack (\r | |
118 | IN OUT EFI_HII_VALUE **Stack,\r | |
119 | IN OUT EFI_HII_VALUE **StackPtr,\r | |
120 | IN OUT EFI_HII_VALUE **StackEnd,\r | |
121 | IN EFI_HII_VALUE *Data\r | |
122 | )\r | |
123 | {\r | |
124 | EFI_STATUS Status;\r | |
125 | \r | |
126 | //\r | |
127 | // Check for a stack overflow condition\r | |
128 | //\r | |
129 | if (*StackPtr >= *StackEnd) {\r | |
130 | //\r | |
131 | // Grow the stack\r | |
132 | //\r | |
133 | Status = GrowStack (Stack, StackPtr, StackEnd);\r | |
134 | if (EFI_ERROR (Status)) {\r | |
135 | return Status;\r | |
136 | }\r | |
137 | }\r | |
138 | \r | |
139 | //\r | |
140 | // Push the item onto the stack\r | |
141 | //\r | |
142 | CopyMem (*StackPtr, Data, sizeof (EFI_HII_VALUE));\r | |
901ba0e7 ED |
143 | if (Data->Type == EFI_IFR_TYPE_BUFFER) {\r |
144 | (*StackPtr)->Buffer = AllocateCopyPool(Data->BufferLen, Data->Buffer);\r | |
145 | ASSERT ((*StackPtr)->Buffer != NULL);\r | |
146 | }\r | |
147 | \r | |
7936fb6a | 148 | *StackPtr = *StackPtr + 1;\r |
149 | \r | |
150 | return EFI_SUCCESS;\r | |
151 | }\r | |
152 | \r | |
153 | \r | |
154 | /**\r | |
155 | Pop an element from the stack.\r | |
156 | \r | |
2573712e LG |
157 | @param Stack On input: old stack\r |
158 | @param StackPtr On input: old stack pointer; On output: new stack pointer\r | |
7936fb6a | 159 | @param Data Data to pop.\r |
160 | \r | |
161 | @retval EFI_SUCCESS The value was popped onto the stack.\r | |
162 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
163 | \r | |
164 | **/\r | |
165 | EFI_STATUS\r | |
166 | PopStack (\r | |
2573712e | 167 | IN EFI_HII_VALUE *Stack,\r |
7936fb6a | 168 | IN OUT EFI_HII_VALUE **StackPtr,\r |
7936fb6a | 169 | OUT EFI_HII_VALUE *Data\r |
170 | )\r | |
171 | {\r | |
172 | //\r | |
173 | // Check for a stack underflow condition\r | |
174 | //\r | |
2573712e | 175 | if (*StackPtr == Stack) {\r |
7936fb6a | 176 | return EFI_ACCESS_DENIED;\r |
177 | }\r | |
178 | \r | |
179 | //\r | |
180 | // Pop the item off the stack\r | |
181 | //\r | |
182 | *StackPtr = *StackPtr - 1;\r | |
183 | CopyMem (Data, *StackPtr, sizeof (EFI_HII_VALUE));\r | |
184 | return EFI_SUCCESS;\r | |
185 | }\r | |
186 | \r | |
187 | \r | |
2573712e LG |
188 | /**\r |
189 | Reset stack pointer to begin of the stack.\r | |
190 | \r | |
191 | **/\r | |
192 | VOID\r | |
193 | ResetCurrentExpressionStack (\r | |
194 | VOID\r | |
195 | )\r | |
196 | {\r | |
197 | mCurrentExpressionPointer = mCurrentExpressionStack;\r | |
198 | }\r | |
199 | \r | |
200 | \r | |
201 | /**\r | |
202 | Push current expression onto the Stack\r | |
203 | \r | |
204 | @param Pointer Pointer to current expression.\r | |
205 | \r | |
206 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
207 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.\r | |
208 | \r | |
209 | **/\r | |
210 | EFI_STATUS\r | |
211 | PushCurrentExpression (\r | |
212 | IN VOID *Pointer\r | |
213 | )\r | |
214 | {\r | |
215 | EFI_HII_VALUE Data;\r | |
216 | \r | |
217 | Data.Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
218 | Data.Value.u64 = (UINT64) (UINTN) Pointer;\r | |
219 | \r | |
220 | return PushStack (\r | |
221 | &mCurrentExpressionStack,\r | |
222 | &mCurrentExpressionPointer,\r | |
223 | &mCurrentExpressionEnd,\r | |
224 | &Data\r | |
225 | );\r | |
226 | }\r | |
227 | \r | |
228 | \r | |
229 | /**\r | |
230 | Pop current expression from the Stack\r | |
231 | \r | |
232 | @param Pointer Pointer to current expression to be pop.\r | |
233 | \r | |
234 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
235 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.\r | |
236 | \r | |
237 | **/\r | |
238 | EFI_STATUS\r | |
239 | PopCurrentExpression (\r | |
240 | OUT VOID **Pointer\r | |
241 | )\r | |
242 | {\r | |
243 | EFI_STATUS Status;\r | |
244 | EFI_HII_VALUE Data;\r | |
245 | \r | |
246 | Status = PopStack (\r | |
247 | mCurrentExpressionStack,\r | |
248 | &mCurrentExpressionPointer,\r | |
249 | &Data\r | |
250 | );\r | |
251 | \r | |
252 | *Pointer = (VOID *) (UINTN) Data.Value.u64;\r | |
253 | \r | |
254 | return Status;\r | |
255 | }\r | |
256 | \r | |
257 | /**\r | |
258 | Reset stack pointer to begin of the stack.\r | |
259 | \r | |
260 | **/\r | |
261 | VOID\r | |
262 | ResetMapExpressionListStack (\r | |
263 | VOID\r | |
264 | )\r | |
265 | {\r | |
266 | mMapExpressionListPointer = mMapExpressionListStack;\r | |
267 | }\r | |
268 | \r | |
269 | \r | |
270 | /**\r | |
271 | Push the list of map expression onto the Stack\r | |
272 | \r | |
273 | @param Pointer Pointer to the list of map expression to be pushed.\r | |
274 | \r | |
275 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
276 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.\r | |
277 | \r | |
278 | **/\r | |
279 | EFI_STATUS\r | |
280 | PushMapExpressionList (\r | |
281 | IN VOID *Pointer\r | |
282 | )\r | |
283 | {\r | |
284 | EFI_HII_VALUE Data;\r | |
285 | \r | |
286 | Data.Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
287 | Data.Value.u64 = (UINT64) (UINTN) Pointer;\r | |
288 | \r | |
289 | return PushStack (\r | |
290 | &mMapExpressionListStack,\r | |
291 | &mMapExpressionListPointer,\r | |
292 | &mMapExpressionListEnd,\r | |
293 | &Data\r | |
294 | );\r | |
295 | }\r | |
296 | \r | |
297 | \r | |
298 | /**\r | |
299 | Pop the list of map expression from the Stack\r | |
300 | \r | |
301 | @param Pointer Pointer to the list of map expression to be pop.\r | |
302 | \r | |
303 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
304 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the stack.\r | |
305 | \r | |
306 | **/\r | |
307 | EFI_STATUS\r | |
308 | PopMapExpressionList (\r | |
309 | OUT VOID **Pointer\r | |
310 | )\r | |
311 | {\r | |
312 | EFI_STATUS Status;\r | |
313 | EFI_HII_VALUE Data;\r | |
314 | \r | |
315 | Status = PopStack (\r | |
316 | mMapExpressionListStack,\r | |
317 | &mMapExpressionListPointer,\r | |
318 | &Data\r | |
319 | );\r | |
320 | \r | |
321 | *Pointer = (VOID *) (UINTN) Data.Value.u64;\r | |
322 | \r | |
323 | return Status;\r | |
324 | }\r | |
325 | \r | |
7936fb6a | 326 | /**\r |
327 | Reset stack pointer to begin of the stack.\r | |
328 | \r | |
329 | **/\r | |
330 | VOID\r | |
331 | ResetScopeStack (\r | |
332 | VOID\r | |
333 | )\r | |
334 | {\r | |
335 | mOpCodeScopeStackPointer = mOpCodeScopeStack;\r | |
336 | }\r | |
337 | \r | |
338 | \r | |
339 | /**\r | |
340 | Push an Operand onto the Stack\r | |
341 | \r | |
342 | @param Operand Operand to push.\r | |
343 | \r | |
344 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
345 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
346 | stack.\r | |
347 | \r | |
348 | **/\r | |
349 | EFI_STATUS\r | |
350 | PushScope (\r | |
351 | IN UINT8 Operand\r | |
352 | )\r | |
353 | {\r | |
354 | EFI_HII_VALUE Data;\r | |
355 | \r | |
356 | Data.Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
357 | Data.Value.u8 = Operand;\r | |
358 | \r | |
359 | return PushStack (\r | |
360 | &mOpCodeScopeStack,\r | |
361 | &mOpCodeScopeStackPointer,\r | |
362 | &mOpCodeScopeStackEnd,\r | |
363 | &Data\r | |
364 | );\r | |
365 | }\r | |
366 | \r | |
367 | \r | |
368 | /**\r | |
369 | Pop an Operand from the Stack\r | |
370 | \r | |
371 | @param Operand Operand to pop.\r | |
372 | \r | |
373 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
374 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
375 | stack.\r | |
376 | \r | |
377 | **/\r | |
378 | EFI_STATUS\r | |
379 | PopScope (\r | |
380 | OUT UINT8 *Operand\r | |
381 | )\r | |
382 | {\r | |
383 | EFI_STATUS Status;\r | |
384 | EFI_HII_VALUE Data;\r | |
385 | \r | |
386 | Status = PopStack (\r | |
2573712e | 387 | mOpCodeScopeStack,\r |
7936fb6a | 388 | &mOpCodeScopeStackPointer,\r |
7936fb6a | 389 | &Data\r |
390 | );\r | |
391 | \r | |
392 | *Operand = Data.Value.u8;\r | |
393 | \r | |
394 | return Status;\r | |
395 | }\r | |
396 | \r | |
397 | \r | |
7936fb6a | 398 | /**\r |
399 | Push an Expression value onto the Stack\r | |
400 | \r | |
401 | @param Value Expression value to push.\r | |
402 | \r | |
403 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
404 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
405 | stack.\r | |
406 | \r | |
407 | **/\r | |
408 | EFI_STATUS\r | |
409 | PushExpression (\r | |
410 | IN EFI_HII_VALUE *Value\r | |
411 | )\r | |
412 | {\r | |
413 | return PushStack (\r | |
414 | &mExpressionEvaluationStack,\r | |
415 | &mExpressionEvaluationStackPointer,\r | |
416 | &mExpressionEvaluationStackEnd,\r | |
417 | Value\r | |
418 | );\r | |
419 | }\r | |
420 | \r | |
421 | \r | |
422 | /**\r | |
423 | Pop an Expression value from the stack.\r | |
424 | \r | |
425 | @param Value Expression value to pop.\r | |
426 | \r | |
427 | @retval EFI_SUCCESS The value was popped onto the stack.\r | |
428 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
429 | \r | |
430 | **/\r | |
431 | EFI_STATUS\r | |
432 | PopExpression (\r | |
433 | OUT EFI_HII_VALUE *Value\r | |
434 | )\r | |
435 | {\r | |
436 | return PopStack (\r | |
2573712e | 437 | mExpressionEvaluationStack + mExpressionEvaluationStackOffset,\r |
7936fb6a | 438 | &mExpressionEvaluationStackPointer,\r |
7936fb6a | 439 | Value\r |
440 | );\r | |
441 | }\r | |
442 | \r | |
2573712e LG |
443 | /**\r |
444 | Get current stack offset from stack start.\r | |
445 | \r | |
446 | @return Stack offset to stack start.\r | |
447 | **/\r | |
448 | UINTN\r | |
449 | SaveExpressionEvaluationStackOffset (\r | |
450 | )\r | |
451 | {\r | |
452 | UINTN TempStackOffset;\r | |
453 | TempStackOffset = mExpressionEvaluationStackOffset;\r | |
454 | mExpressionEvaluationStackOffset = mExpressionEvaluationStackPointer - mExpressionEvaluationStack;\r | |
455 | return TempStackOffset;\r | |
456 | }\r | |
457 | \r | |
458 | /**\r | |
459 | Restore stack offset based on input stack offset\r | |
460 | \r | |
461 | @param StackOffset Offset to stack start.\r | |
462 | \r | |
463 | **/\r | |
464 | VOID\r | |
465 | RestoreExpressionEvaluationStackOffset (\r | |
466 | UINTN StackOffset\r | |
467 | )\r | |
468 | {\r | |
469 | mExpressionEvaluationStackOffset = StackOffset;\r | |
470 | }\r | |
7936fb6a | 471 | \r |
472 | /**\r | |
473 | Get Form given its FormId.\r | |
474 | \r | |
475 | @param FormSet The formset which contains this form.\r | |
476 | @param FormId Id of this form.\r | |
477 | \r | |
478 | @retval Pointer The form.\r | |
479 | @retval NULL Specified Form is not found in the formset.\r | |
480 | \r | |
481 | **/\r | |
482 | FORM_BROWSER_FORM *\r | |
483 | IdToForm (\r | |
484 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
485 | IN UINT16 FormId\r | |
486 | )\r | |
487 | {\r | |
488 | LIST_ENTRY *Link;\r | |
489 | FORM_BROWSER_FORM *Form;\r | |
490 | \r | |
491 | Link = GetFirstNode (&FormSet->FormListHead);\r | |
492 | while (!IsNull (&FormSet->FormListHead, Link)) {\r | |
493 | Form = FORM_BROWSER_FORM_FROM_LINK (Link);\r | |
494 | \r | |
495 | if (Form->FormId == FormId) {\r | |
496 | return Form;\r | |
497 | }\r | |
498 | \r | |
499 | Link = GetNextNode (&FormSet->FormListHead, Link);\r | |
500 | }\r | |
501 | \r | |
502 | return NULL;\r | |
503 | }\r | |
504 | \r | |
505 | \r | |
506 | /**\r | |
507 | Search a Question in Form scope using its QuestionId.\r | |
508 | \r | |
509 | @param Form The form which contains this Question.\r | |
510 | @param QuestionId Id of this Question.\r | |
511 | \r | |
512 | @retval Pointer The Question.\r | |
513 | @retval NULL Specified Question not found in the form.\r | |
514 | \r | |
515 | **/\r | |
516 | FORM_BROWSER_STATEMENT *\r | |
517 | IdToQuestion2 (\r | |
518 | IN FORM_BROWSER_FORM *Form,\r | |
519 | IN UINT16 QuestionId\r | |
520 | )\r | |
521 | {\r | |
522 | LIST_ENTRY *Link;\r | |
523 | FORM_BROWSER_STATEMENT *Question;\r | |
524 | \r | |
525 | if (QuestionId == 0) {\r | |
526 | //\r | |
527 | // The value of zero is reserved\r | |
528 | //\r | |
529 | return NULL;\r | |
530 | }\r | |
531 | \r | |
532 | Link = GetFirstNode (&Form->StatementListHead);\r | |
533 | while (!IsNull (&Form->StatementListHead, Link)) {\r | |
534 | Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);\r | |
535 | \r | |
536 | if (Question->QuestionId == QuestionId) {\r | |
537 | return Question;\r | |
538 | }\r | |
539 | \r | |
540 | Link = GetNextNode (&Form->StatementListHead, Link);\r | |
541 | }\r | |
542 | \r | |
543 | return NULL;\r | |
544 | }\r | |
545 | \r | |
546 | \r | |
547 | /**\r | |
548 | Search a Question in Formset scope using its QuestionId.\r | |
549 | \r | |
550 | @param FormSet The formset which contains this form.\r | |
551 | @param Form The form which contains this Question.\r | |
552 | @param QuestionId Id of this Question.\r | |
553 | \r | |
554 | @retval Pointer The Question.\r | |
555 | @retval NULL Specified Question not found in the form.\r | |
556 | \r | |
557 | **/\r | |
558 | FORM_BROWSER_STATEMENT *\r | |
559 | IdToQuestion (\r | |
560 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
561 | IN FORM_BROWSER_FORM *Form,\r | |
562 | IN UINT16 QuestionId\r | |
563 | )\r | |
564 | {\r | |
565 | LIST_ENTRY *Link;\r | |
566 | FORM_BROWSER_STATEMENT *Question;\r | |
567 | \r | |
568 | //\r | |
569 | // Search in the form scope first\r | |
570 | //\r | |
571 | Question = IdToQuestion2 (Form, QuestionId);\r | |
572 | if (Question != NULL) {\r | |
573 | return Question;\r | |
574 | }\r | |
575 | \r | |
576 | //\r | |
577 | // Search in the formset scope\r | |
578 | //\r | |
579 | Link = GetFirstNode (&FormSet->FormListHead);\r | |
580 | while (!IsNull (&FormSet->FormListHead, Link)) {\r | |
581 | Form = FORM_BROWSER_FORM_FROM_LINK (Link);\r | |
582 | \r | |
583 | Question = IdToQuestion2 (Form, QuestionId);\r | |
584 | if (Question != NULL) {\r | |
8d00a0f1 | 585 | //\r |
586 | // EFI variable storage may be updated by Callback() asynchronous,\r | |
587 | // to keep synchronous, always reload the Question Value.\r | |
588 | //\r | |
589 | if (Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {\r | |
590 | GetQuestionValue (FormSet, Form, Question, FALSE);\r | |
591 | }\r | |
592 | \r | |
7936fb6a | 593 | return Question;\r |
594 | }\r | |
595 | \r | |
596 | Link = GetNextNode (&FormSet->FormListHead, Link);\r | |
597 | }\r | |
598 | \r | |
599 | return NULL;\r | |
600 | }\r | |
601 | \r | |
602 | \r | |
603 | /**\r | |
604 | Get Expression given its RuleId.\r | |
605 | \r | |
606 | @param Form The form which contains this Expression.\r | |
607 | @param RuleId Id of this Expression.\r | |
608 | \r | |
609 | @retval Pointer The Expression.\r | |
610 | @retval NULL Specified Expression not found in the form.\r | |
611 | \r | |
612 | **/\r | |
613 | FORM_EXPRESSION *\r | |
614 | RuleIdToExpression (\r | |
615 | IN FORM_BROWSER_FORM *Form,\r | |
616 | IN UINT8 RuleId\r | |
617 | )\r | |
618 | {\r | |
619 | LIST_ENTRY *Link;\r | |
620 | FORM_EXPRESSION *Expression;\r | |
621 | \r | |
622 | Link = GetFirstNode (&Form->ExpressionListHead);\r | |
623 | while (!IsNull (&Form->ExpressionListHead, Link)) {\r | |
624 | Expression = FORM_EXPRESSION_FROM_LINK (Link);\r | |
625 | \r | |
626 | if (Expression->Type == EFI_HII_EXPRESSION_RULE && Expression->RuleId == RuleId) {\r | |
627 | return Expression;\r | |
628 | }\r | |
629 | \r | |
630 | Link = GetNextNode (&Form->ExpressionListHead, Link);\r | |
631 | }\r | |
632 | \r | |
633 | return NULL;\r | |
634 | }\r | |
635 | \r | |
636 | \r | |
637 | /**\r | |
638 | Locate the Unicode Collation Protocol interface for later use.\r | |
639 | \r | |
640 | @retval EFI_SUCCESS Protocol interface initialize success.\r | |
641 | @retval Other Protocol interface initialize failed.\r | |
642 | \r | |
643 | **/\r | |
644 | EFI_STATUS\r | |
645 | InitializeUnicodeCollationProtocol (\r | |
646 | VOID\r | |
647 | )\r | |
648 | {\r | |
649 | EFI_STATUS Status;\r | |
650 | \r | |
651 | if (mUnicodeCollation != NULL) {\r | |
652 | return EFI_SUCCESS;\r | |
653 | }\r | |
654 | \r | |
655 | //\r | |
656 | // BUGBUG: Proper impelmentation is to locate all Unicode Collation Protocol\r | |
657 | // instances first and then select one which support English language.\r | |
658 | // Current implementation just pick the first instance.\r | |
659 | //\r | |
660 | Status = gBS->LocateProtocol (\r | |
661 | &gEfiUnicodeCollation2ProtocolGuid,\r | |
662 | NULL,\r | |
663 | (VOID **) &mUnicodeCollation\r | |
664 | );\r | |
665 | return Status;\r | |
666 | }\r | |
667 | \r | |
668 | /**\r | |
669 | Convert the input Unicode character to upper.\r | |
670 | \r | |
671 | @param String Th Unicode character to be converted.\r | |
672 | \r | |
673 | **/\r | |
674 | VOID\r | |
675 | IfrStrToUpper (\r | |
8b0fc5c1 | 676 | IN CHAR16 *String\r |
7936fb6a | 677 | )\r |
678 | {\r | |
679 | while (*String != 0) {\r | |
680 | if ((*String >= 'a') && (*String <= 'z')) {\r | |
681 | *String = (UINT16) ((*String) & ((UINT16) ~0x20));\r | |
682 | }\r | |
683 | String++;\r | |
684 | }\r | |
685 | }\r | |
686 | \r | |
687 | \r | |
688 | /**\r | |
689 | Evaluate opcode EFI_IFR_TO_STRING.\r | |
690 | \r | |
691 | @param FormSet Formset which contains this opcode.\r | |
692 | @param Format String format in EFI_IFR_TO_STRING.\r | |
693 | @param Result Evaluation result for this opcode.\r | |
694 | \r | |
695 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
696 | @retval Other Opcode evaluation failed.\r | |
697 | \r | |
698 | **/\r | |
699 | EFI_STATUS\r | |
700 | IfrToString (\r | |
701 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
702 | IN UINT8 Format,\r | |
703 | OUT EFI_HII_VALUE *Result\r | |
704 | )\r | |
705 | {\r | |
706 | EFI_STATUS Status;\r | |
707 | EFI_HII_VALUE Value;\r | |
708 | CHAR16 *String;\r | |
709 | CHAR16 *PrintFormat;\r | |
710 | CHAR16 Buffer[MAXIMUM_VALUE_CHARACTERS];\r | |
901ba0e7 | 711 | UINT8 *TmpBuf;\r |
7936fb6a | 712 | UINTN BufferSize;\r |
713 | \r | |
714 | Status = PopExpression (&Value);\r | |
715 | if (EFI_ERROR (Status)) {\r | |
716 | return Status;\r | |
717 | }\r | |
718 | \r | |
719 | switch (Value.Type) {\r | |
720 | case EFI_IFR_TYPE_NUM_SIZE_8:\r | |
721 | case EFI_IFR_TYPE_NUM_SIZE_16:\r | |
722 | case EFI_IFR_TYPE_NUM_SIZE_32:\r | |
723 | case EFI_IFR_TYPE_NUM_SIZE_64:\r | |
724 | BufferSize = MAXIMUM_VALUE_CHARACTERS * sizeof (CHAR16);\r | |
725 | switch (Format) {\r | |
726 | case EFI_IFR_STRING_UNSIGNED_DEC:\r | |
727 | case EFI_IFR_STRING_SIGNED_DEC:\r | |
728 | PrintFormat = L"%ld";\r | |
729 | break;\r | |
730 | \r | |
731 | case EFI_IFR_STRING_LOWERCASE_HEX:\r | |
732 | PrintFormat = L"%lx";\r | |
733 | break;\r | |
734 | \r | |
735 | case EFI_IFR_STRING_UPPERCASE_HEX:\r | |
736 | PrintFormat = L"%lX";\r | |
737 | break;\r | |
738 | \r | |
739 | default:\r | |
740 | return EFI_UNSUPPORTED;\r | |
741 | }\r | |
742 | UnicodeSPrint (Buffer, BufferSize, PrintFormat, Value.Value.u64);\r | |
743 | String = Buffer;\r | |
744 | break;\r | |
745 | \r | |
746 | case EFI_IFR_TYPE_STRING:\r | |
747 | CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));\r | |
748 | return EFI_SUCCESS;\r | |
749 | \r | |
750 | case EFI_IFR_TYPE_BOOLEAN:\r | |
751 | String = (Value.Value.b) ? L"True" : L"False";\r | |
752 | break;\r | |
901ba0e7 ED |
753 | \r |
754 | case EFI_IFR_TYPE_BUFFER:\r | |
755 | //\r | |
756 | // + 3 is base on the unicode format, the length may be odd number, \r | |
757 | // so need 1 byte to align, also need 2 bytes for L'\0'.\r | |
758 | //\r | |
759 | TmpBuf = AllocateZeroPool (Value.BufferLen + 3);\r | |
760 | if (Format == EFI_IFR_STRING_ASCII) {\r | |
761 | CopyMem (TmpBuf, Value.Buffer, Value.BufferLen);\r | |
762 | PrintFormat = L"%a"; \r | |
763 | } else {\r | |
764 | // Format == EFI_IFR_STRING_UNICODE\r | |
765 | CopyMem (TmpBuf, Value.Buffer, Value.BufferLen * sizeof (CHAR16));\r | |
766 | PrintFormat = L"%s"; \r | |
767 | }\r | |
768 | UnicodeSPrint (Buffer, MAXIMUM_VALUE_CHARACTERS, PrintFormat, Value.Buffer); \r | |
769 | String = Buffer; \r | |
770 | FreePool (TmpBuf);\r | |
771 | FreePool (Value.Buffer);\r | |
772 | break;\r | |
773 | \r | |
7936fb6a | 774 | default:\r |
775 | return EFI_UNSUPPORTED;\r | |
776 | }\r | |
777 | \r | |
778 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
779 | Result->Value.string = NewString (String, FormSet->HiiHandle);\r | |
780 | return EFI_SUCCESS;\r | |
781 | }\r | |
782 | \r | |
783 | \r | |
784 | /**\r | |
785 | Evaluate opcode EFI_IFR_TO_UINT.\r | |
786 | \r | |
787 | @param FormSet Formset which contains this opcode.\r | |
788 | @param Result Evaluation result for this opcode.\r | |
789 | \r | |
790 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
791 | @retval Other Opcode evaluation failed.\r | |
792 | \r | |
793 | **/\r | |
794 | EFI_STATUS\r | |
795 | IfrToUint (\r | |
796 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
797 | OUT EFI_HII_VALUE *Result\r | |
798 | )\r | |
799 | {\r | |
800 | EFI_STATUS Status;\r | |
801 | EFI_HII_VALUE Value;\r | |
802 | CHAR16 *String;\r | |
803 | CHAR16 *StringPtr;\r | |
7936fb6a | 804 | \r |
805 | Status = PopExpression (&Value);\r | |
806 | if (EFI_ERROR (Status)) {\r | |
807 | return Status;\r | |
808 | }\r | |
809 | \r | |
901ba0e7 | 810 | if (Value.Type >= EFI_IFR_TYPE_OTHER && Value.Type != EFI_IFR_TYPE_BUFFER) {\r |
7936fb6a | 811 | return EFI_UNSUPPORTED;\r |
812 | }\r | |
813 | \r | |
814 | Status = EFI_SUCCESS;\r | |
815 | if (Value.Type == EFI_IFR_TYPE_STRING) {\r | |
816 | String = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
817 | if (String == NULL) {\r | |
818 | return EFI_NOT_FOUND;\r | |
819 | }\r | |
8b0fc5c1 | 820 | \r |
7936fb6a | 821 | IfrStrToUpper (String);\r |
822 | StringPtr = StrStr (String, L"0X");\r | |
823 | if (StringPtr != NULL) {\r | |
824 | //\r | |
825 | // Hex string\r | |
826 | //\r | |
ac7e320c | 827 | Result->Value.u64 = StrHexToUint64 (String);\r |
7936fb6a | 828 | } else {\r |
829 | //\r | |
ac7e320c | 830 | // decimal string\r |
7936fb6a | 831 | //\r |
ac7e320c | 832 | Result->Value.u64 = StrDecimalToUint64 (String);\r |
7936fb6a | 833 | }\r |
f4113e1f | 834 | FreePool (String);\r |
901ba0e7 ED |
835 | } else if (Value.Type == EFI_IFR_TYPE_BUFFER) {\r |
836 | if (Value.BufferLen > 8) {\r | |
837 | FreePool (Value.Buffer);\r | |
838 | return EFI_UNSUPPORTED;\r | |
839 | }\r | |
840 | Result->Value.u64 = *(UINT64*) Value.Buffer;\r | |
841 | FreePool (Value.Buffer);\r | |
7936fb6a | 842 | } else {\r |
843 | CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));\r | |
844 | }\r | |
845 | \r | |
846 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
847 | return Status;\r | |
848 | }\r | |
849 | \r | |
850 | \r | |
851 | /**\r | |
852 | Evaluate opcode EFI_IFR_CATENATE.\r | |
853 | \r | |
854 | @param FormSet Formset which contains this opcode.\r | |
855 | @param Result Evaluation result for this opcode.\r | |
856 | \r | |
857 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
858 | @retval Other Opcode evaluation failed.\r | |
859 | \r | |
860 | **/\r | |
861 | EFI_STATUS\r | |
862 | IfrCatenate (\r | |
863 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
864 | OUT EFI_HII_VALUE *Result\r | |
865 | )\r | |
866 | {\r | |
867 | EFI_STATUS Status;\r | |
901ba0e7 | 868 | EFI_HII_VALUE Value[2];\r |
7936fb6a | 869 | CHAR16 *String[2];\r |
870 | UINTN Index;\r | |
871 | CHAR16 *StringPtr;\r | |
872 | UINTN Size;\r | |
873 | \r | |
874 | //\r | |
875 | // String[0] - The second string\r | |
876 | // String[1] - The first string\r | |
877 | //\r | |
878 | String[0] = NULL;\r | |
879 | String[1] = NULL;\r | |
880 | StringPtr = NULL;\r | |
881 | Status = EFI_SUCCESS;\r | |
901ba0e7 | 882 | ZeroMem (Value, sizeof (Value));\r |
7936fb6a | 883 | \r |
884 | for (Index = 0; Index < 2; Index++) {\r | |
901ba0e7 | 885 | Status = PopExpression (&Value[Index]);\r |
7936fb6a | 886 | if (EFI_ERROR (Status)) {\r |
887 | goto Done;\r | |
888 | }\r | |
889 | \r | |
901ba0e7 | 890 | if (Value[Index].Type != EFI_IFR_TYPE_STRING && Value[Index].Type != EFI_IFR_TYPE_BUFFER) {\r |
7936fb6a | 891 | Status = EFI_UNSUPPORTED;\r |
892 | goto Done;\r | |
893 | }\r | |
894 | \r | |
901ba0e7 ED |
895 | if (Value[Index].Type == EFI_IFR_TYPE_STRING) {\r |
896 | String[Index] = GetToken (Value[Index].Value.string, FormSet->HiiHandle);\r | |
897 | if (String[Index] == NULL) {\r | |
898 | Status = EFI_NOT_FOUND;\r | |
899 | goto Done;\r | |
900 | }\r | |
7936fb6a | 901 | }\r |
902 | }\r | |
903 | \r | |
901ba0e7 ED |
904 | if (Value[0].Type == EFI_IFR_TYPE_STRING) {\r |
905 | Size = StrSize (String[0]);\r | |
906 | StringPtr= AllocatePool (StrSize (String[1]) + Size);\r | |
907 | ASSERT (StringPtr != NULL);\r | |
908 | StrCpy (StringPtr, String[1]);\r | |
909 | StrCat (StringPtr, String[0]);\r | |
7936fb6a | 910 | \r |
901ba0e7 ED |
911 | Result->Type = EFI_IFR_TYPE_STRING;\r |
912 | Result->Value.string = NewString (StringPtr, FormSet->HiiHandle);\r | |
913 | } else {\r | |
914 | Result->Type = EFI_IFR_TYPE_BUFFER;\r | |
915 | Result->BufferLen = (UINT16) (Value[0].BufferLen + Value[1].BufferLen);\r | |
916 | \r | |
917 | Result->Buffer = AllocateZeroPool (Result->BufferLen);\r | |
918 | ASSERT (Result->Buffer != NULL);\r | |
7936fb6a | 919 | \r |
901ba0e7 ED |
920 | CopyMem (Result->Buffer, Value[0].Buffer, Value[0].BufferLen);\r |
921 | CopyMem (&Result->Buffer[Value[0].BufferLen], Value[1].Buffer, Value[1].BufferLen);\r | |
922 | }\r | |
7936fb6a | 923 | Done:\r |
901ba0e7 ED |
924 | if (Value[0].Buffer != NULL) {\r |
925 | FreePool (Value[0].Buffer);\r | |
926 | }\r | |
927 | if (Value[1].Buffer != NULL) {\r | |
928 | FreePool (Value[1].Buffer);\r | |
929 | }\r | |
676df92c | 930 | if (String[0] != NULL) {\r |
931 | FreePool (String[0]);\r | |
932 | }\r | |
933 | if (String[1] != NULL) {\r | |
934 | FreePool (String[1]);\r | |
8b0fc5c1 | 935 | }\r |
676df92c | 936 | if (StringPtr != NULL) {\r |
937 | FreePool (StringPtr);\r | |
938 | }\r | |
7936fb6a | 939 | \r |
940 | return Status;\r | |
941 | }\r | |
942 | \r | |
943 | \r | |
944 | /**\r | |
945 | Evaluate opcode EFI_IFR_MATCH.\r | |
946 | \r | |
947 | @param FormSet Formset which contains this opcode.\r | |
948 | @param Result Evaluation result for this opcode.\r | |
949 | \r | |
950 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
951 | @retval Other Opcode evaluation failed.\r | |
952 | \r | |
953 | **/\r | |
954 | EFI_STATUS\r | |
955 | IfrMatch (\r | |
956 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
957 | OUT EFI_HII_VALUE *Result\r | |
958 | )\r | |
959 | {\r | |
960 | EFI_STATUS Status;\r | |
961 | EFI_HII_VALUE Value;\r | |
962 | CHAR16 *String[2];\r | |
963 | UINTN Index;\r | |
964 | \r | |
965 | //\r | |
966 | // String[0] - The string to search\r | |
967 | // String[1] - pattern\r | |
968 | //\r | |
969 | String[0] = NULL;\r | |
970 | String[1] = NULL;\r | |
971 | Status = EFI_SUCCESS;\r | |
972 | for (Index = 0; Index < 2; Index++) {\r | |
973 | Status = PopExpression (&Value);\r | |
974 | if (EFI_ERROR (Status)) {\r | |
975 | goto Done;\r | |
976 | }\r | |
977 | \r | |
978 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
979 | Status = EFI_UNSUPPORTED;\r | |
980 | goto Done;\r | |
981 | }\r | |
982 | \r | |
983 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
bc166db3 | 984 | if (String [Index] == NULL) {\r |
7936fb6a | 985 | Status = EFI_NOT_FOUND;\r |
986 | goto Done;\r | |
987 | }\r | |
988 | }\r | |
989 | \r | |
990 | Result->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
991 | Result->Value.b = mUnicodeCollation->MetaiMatch (mUnicodeCollation, String[0], String[1]);\r | |
992 | \r | |
993 | Done:\r | |
676df92c | 994 | if (String[0] != NULL) {\r |
995 | FreePool (String[0]);\r | |
996 | }\r | |
997 | if (String[1] != NULL) {\r | |
998 | FreePool (String[1]);\r | |
8b0fc5c1 | 999 | }\r |
7936fb6a | 1000 | \r |
1001 | return Status;\r | |
1002 | }\r | |
1003 | \r | |
1004 | \r | |
1005 | /**\r | |
1006 | Evaluate opcode EFI_IFR_FIND.\r | |
1007 | \r | |
1008 | @param FormSet Formset which contains this opcode.\r | |
1009 | @param Format Case sensitive or insensitive.\r | |
1010 | @param Result Evaluation result for this opcode.\r | |
1011 | \r | |
1012 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
1013 | @retval Other Opcode evaluation failed.\r | |
1014 | \r | |
1015 | **/\r | |
1016 | EFI_STATUS\r | |
1017 | IfrFind (\r | |
1018 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1019 | IN UINT8 Format,\r | |
1020 | OUT EFI_HII_VALUE *Result\r | |
1021 | )\r | |
1022 | {\r | |
1023 | EFI_STATUS Status;\r | |
1024 | EFI_HII_VALUE Value;\r | |
1025 | CHAR16 *String[2];\r | |
1026 | UINTN Base;\r | |
1027 | CHAR16 *StringPtr;\r | |
1028 | UINTN Index;\r | |
1029 | \r | |
1030 | if (Format > EFI_IFR_FF_CASE_INSENSITIVE) {\r | |
1031 | return EFI_UNSUPPORTED;\r | |
1032 | }\r | |
1033 | \r | |
1034 | Status = PopExpression (&Value);\r | |
1035 | if (EFI_ERROR (Status)) {\r | |
1036 | return Status;\r | |
1037 | }\r | |
1038 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1039 | return EFI_UNSUPPORTED;\r | |
1040 | }\r | |
1041 | Base = (UINTN) Value.Value.u64;\r | |
1042 | \r | |
1043 | //\r | |
1044 | // String[0] - sub-string\r | |
1045 | // String[1] - The string to search\r | |
1046 | //\r | |
1047 | String[0] = NULL;\r | |
1048 | String[1] = NULL;\r | |
1049 | for (Index = 0; Index < 2; Index++) {\r | |
1050 | Status = PopExpression (&Value);\r | |
1051 | if (EFI_ERROR (Status)) {\r | |
1052 | goto Done;\r | |
1053 | }\r | |
1054 | \r | |
1055 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
1056 | Status = EFI_UNSUPPORTED;\r | |
1057 | goto Done;\r | |
1058 | }\r | |
1059 | \r | |
1060 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
d0720b57 | 1061 | if (String[Index] == NULL) {\r |
7936fb6a | 1062 | Status = EFI_NOT_FOUND;\r |
1063 | goto Done;\r | |
1064 | }\r | |
1065 | \r | |
1066 | if (Format == EFI_IFR_FF_CASE_INSENSITIVE) {\r | |
1067 | //\r | |
1068 | // Case insensitive, convert both string to upper case\r | |
1069 | //\r | |
1070 | IfrStrToUpper (String[Index]);\r | |
1071 | }\r | |
1072 | }\r | |
1073 | \r | |
1074 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1075 | if (Base >= StrLen (String[1])) {\r | |
1076 | Result->Value.u64 = 0xFFFFFFFFFFFFFFFFULL;\r | |
1077 | } else {\r | |
1078 | StringPtr = StrStr (String[1] + Base, String[0]);\r | |
1079 | Result->Value.u64 = (StringPtr == NULL) ? 0xFFFFFFFFFFFFFFFFULL : (StringPtr - String[1]);\r | |
1080 | }\r | |
1081 | \r | |
1082 | Done:\r | |
676df92c | 1083 | if (String[0] != NULL) {\r |
1084 | FreePool (String[0]);\r | |
1085 | }\r | |
1086 | if (String[1] != NULL) {\r | |
1087 | FreePool (String[1]);\r | |
8b0fc5c1 | 1088 | }\r |
7936fb6a | 1089 | \r |
1090 | return Status;\r | |
1091 | }\r | |
1092 | \r | |
1093 | \r | |
1094 | /**\r | |
1095 | Evaluate opcode EFI_IFR_MID.\r | |
1096 | \r | |
1097 | @param FormSet Formset which contains this opcode.\r | |
1098 | @param Result Evaluation result for this opcode.\r | |
1099 | \r | |
1100 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
1101 | @retval Other Opcode evaluation failed.\r | |
1102 | \r | |
1103 | **/\r | |
1104 | EFI_STATUS\r | |
1105 | IfrMid (\r | |
1106 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1107 | OUT EFI_HII_VALUE *Result\r | |
1108 | )\r | |
1109 | {\r | |
1110 | EFI_STATUS Status;\r | |
1111 | EFI_HII_VALUE Value;\r | |
1112 | CHAR16 *String;\r | |
1113 | UINTN Base;\r | |
1114 | UINTN Length;\r | |
1115 | CHAR16 *SubString;\r | |
901ba0e7 ED |
1116 | UINT8 *Buffer;\r |
1117 | UINT16 BufferLen;\r | |
7936fb6a | 1118 | \r |
1119 | Status = PopExpression (&Value);\r | |
1120 | if (EFI_ERROR (Status)) {\r | |
1121 | return Status;\r | |
1122 | }\r | |
1123 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1124 | return EFI_UNSUPPORTED;\r | |
1125 | }\r | |
1126 | Length = (UINTN) Value.Value.u64;\r | |
1127 | \r | |
1128 | Status = PopExpression (&Value);\r | |
1129 | if (EFI_ERROR (Status)) {\r | |
1130 | return Status;\r | |
1131 | }\r | |
1132 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1133 | return EFI_UNSUPPORTED;\r | |
1134 | }\r | |
1135 | Base = (UINTN) Value.Value.u64;\r | |
1136 | \r | |
1137 | Status = PopExpression (&Value);\r | |
1138 | if (EFI_ERROR (Status)) {\r | |
1139 | return Status;\r | |
1140 | }\r | |
901ba0e7 | 1141 | if (Value.Type != EFI_IFR_TYPE_STRING && Value.Type != EFI_IFR_TYPE_BUFFER) {\r |
7936fb6a | 1142 | return EFI_UNSUPPORTED;\r |
1143 | }\r | |
901ba0e7 ED |
1144 | if (Value.Type == EFI_IFR_TYPE_STRING) {\r |
1145 | String = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
1146 | if (String == NULL) {\r | |
1147 | return EFI_NOT_FOUND;\r | |
1148 | }\r | |
7936fb6a | 1149 | \r |
901ba0e7 ED |
1150 | if (Length == 0 || Base >= StrLen (String)) {\r |
1151 | SubString = gEmptyString;\r | |
1152 | } else {\r | |
1153 | SubString = String + Base;\r | |
1154 | if ((Base + Length) < StrLen (String)) {\r | |
1155 | SubString[Length] = L'\0';\r | |
1156 | }\r | |
7936fb6a | 1157 | }\r |
7936fb6a | 1158 | \r |
901ba0e7 ED |
1159 | Result->Type = EFI_IFR_TYPE_STRING;\r |
1160 | Result->Value.string = NewString (SubString, FormSet->HiiHandle);\r | |
7936fb6a | 1161 | \r |
901ba0e7 ED |
1162 | FreePool (String);\r |
1163 | } else {\r | |
1164 | Buffer = Value.Buffer;\r | |
1165 | BufferLen = Value.BufferLen;\r | |
1166 | \r | |
1167 | Result->Type = EFI_IFR_TYPE_BUFFER;\r | |
1168 | if (Length == 0 || Base >= BufferLen) {\r | |
1169 | Result->BufferLen = 0;\r | |
1170 | Result->Buffer = NULL;\r | |
1171 | } else {\r | |
1172 | Result->BufferLen = (UINT16)((BufferLen - Base) < Length ? (BufferLen - Base) : Length); \r | |
1173 | Result->Buffer = AllocateZeroPool (Result->BufferLen);\r | |
1174 | ASSERT (Result->Buffer != NULL);\r | |
1175 | CopyMem (Result->Buffer, &Value.Buffer[Base], Result->BufferLen);\r | |
1176 | }\r | |
7936fb6a | 1177 | \r |
901ba0e7 ED |
1178 | FreePool (Value.Buffer);\r |
1179 | }\r | |
1180 | \r | |
7936fb6a | 1181 | return Status;\r |
1182 | }\r | |
1183 | \r | |
1184 | \r | |
1185 | /**\r | |
1186 | Evaluate opcode EFI_IFR_TOKEN.\r | |
1187 | \r | |
1188 | @param FormSet Formset which contains this opcode.\r | |
1189 | @param Result Evaluation result for this opcode.\r | |
1190 | \r | |
1191 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
1192 | @retval Other Opcode evaluation failed.\r | |
1193 | \r | |
1194 | **/\r | |
1195 | EFI_STATUS\r | |
1196 | IfrToken (\r | |
1197 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1198 | OUT EFI_HII_VALUE *Result\r | |
1199 | )\r | |
1200 | {\r | |
1201 | EFI_STATUS Status;\r | |
1202 | EFI_HII_VALUE Value;\r | |
1203 | CHAR16 *String[2];\r | |
1204 | UINTN Count;\r | |
1205 | CHAR16 *Delimiter;\r | |
1206 | CHAR16 *SubString;\r | |
1207 | CHAR16 *StringPtr;\r | |
1208 | UINTN Index;\r | |
1209 | \r | |
1210 | Status = PopExpression (&Value);\r | |
1211 | if (EFI_ERROR (Status)) {\r | |
1212 | return Status;\r | |
1213 | }\r | |
1214 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1215 | return EFI_UNSUPPORTED;\r | |
1216 | }\r | |
1217 | Count = (UINTN) Value.Value.u64;\r | |
1218 | \r | |
1219 | //\r | |
1220 | // String[0] - Delimiter\r | |
1221 | // String[1] - The string to search\r | |
1222 | //\r | |
1223 | String[0] = NULL;\r | |
1224 | String[1] = NULL;\r | |
1225 | for (Index = 0; Index < 2; Index++) {\r | |
1226 | Status = PopExpression (&Value);\r | |
1227 | if (EFI_ERROR (Status)) {\r | |
1228 | goto Done;\r | |
1229 | }\r | |
1230 | \r | |
1231 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
1232 | Status = EFI_UNSUPPORTED;\r | |
1233 | goto Done;\r | |
1234 | }\r | |
1235 | \r | |
1236 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
d0720b57 | 1237 | if (String[Index] == NULL) {\r |
7936fb6a | 1238 | Status = EFI_NOT_FOUND;\r |
1239 | goto Done;\r | |
1240 | }\r | |
1241 | }\r | |
1242 | \r | |
1243 | Delimiter = String[0];\r | |
1244 | SubString = String[1];\r | |
1245 | while (Count > 0) {\r | |
1246 | SubString = StrStr (SubString, Delimiter);\r | |
1247 | if (SubString != NULL) {\r | |
1248 | //\r | |
1249 | // Skip over the delimiter\r | |
1250 | //\r | |
1251 | SubString = SubString + StrLen (Delimiter);\r | |
1252 | } else {\r | |
1253 | break;\r | |
1254 | }\r | |
1255 | Count--;\r | |
1256 | }\r | |
1257 | \r | |
1258 | if (SubString == NULL) {\r | |
1259 | //\r | |
1260 | // nth delimited sub-string not found, push an empty string\r | |
1261 | //\r | |
1262 | SubString = gEmptyString;\r | |
1263 | } else {\r | |
1264 | //\r | |
1265 | // Put a NULL terminator for nth delimited sub-string\r | |
1266 | //\r | |
1267 | StringPtr = StrStr (SubString, Delimiter);\r | |
1268 | if (StringPtr != NULL) {\r | |
1269 | *StringPtr = L'\0';\r | |
1270 | }\r | |
1271 | }\r | |
1272 | \r | |
1273 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
1274 | Result->Value.string = NewString (SubString, FormSet->HiiHandle);\r | |
1275 | \r | |
1276 | Done:\r | |
676df92c | 1277 | if (String[0] != NULL) {\r |
1278 | FreePool (String[0]);\r | |
1279 | }\r | |
1280 | if (String[1] != NULL) {\r | |
1281 | FreePool (String[1]);\r | |
8b0fc5c1 | 1282 | }\r |
7936fb6a | 1283 | \r |
1284 | return Status;\r | |
1285 | }\r | |
1286 | \r | |
1287 | \r | |
1288 | /**\r | |
1289 | Evaluate opcode EFI_IFR_SPAN.\r | |
1290 | \r | |
1291 | @param FormSet Formset which contains this opcode.\r | |
1292 | @param Flags FIRST_MATCHING or FIRST_NON_MATCHING.\r | |
1293 | @param Result Evaluation result for this opcode.\r | |
1294 | \r | |
1295 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
1296 | @retval Other Opcode evaluation failed.\r | |
1297 | \r | |
1298 | **/\r | |
1299 | EFI_STATUS\r | |
1300 | IfrSpan (\r | |
1301 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1302 | IN UINT8 Flags,\r | |
1303 | OUT EFI_HII_VALUE *Result\r | |
1304 | )\r | |
1305 | {\r | |
1306 | EFI_STATUS Status;\r | |
1307 | EFI_HII_VALUE Value;\r | |
1308 | CHAR16 *String[2];\r | |
1309 | CHAR16 *Charset;\r | |
1310 | UINTN Base;\r | |
1311 | UINTN Index;\r | |
1312 | CHAR16 *StringPtr;\r | |
1313 | BOOLEAN Found;\r | |
1314 | \r | |
1315 | Status = PopExpression (&Value);\r | |
1316 | if (EFI_ERROR (Status)) {\r | |
1317 | return Status;\r | |
1318 | }\r | |
1319 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1320 | return EFI_UNSUPPORTED;\r | |
1321 | }\r | |
1322 | Base = (UINTN) Value.Value.u64;\r | |
1323 | \r | |
1324 | //\r | |
1325 | // String[0] - Charset\r | |
1326 | // String[1] - The string to search\r | |
1327 | //\r | |
1328 | String[0] = NULL;\r | |
1329 | String[1] = NULL;\r | |
1330 | for (Index = 0; Index < 2; Index++) {\r | |
1331 | Status = PopExpression (&Value);\r | |
1332 | if (EFI_ERROR (Status)) {\r | |
1333 | goto Done;\r | |
1334 | }\r | |
1335 | \r | |
1336 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
1337 | Status = EFI_UNSUPPORTED;\r | |
1338 | goto Done;\r | |
1339 | }\r | |
1340 | \r | |
1341 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
bc166db3 | 1342 | if (String [Index] == NULL) {\r |
7936fb6a | 1343 | Status = EFI_NOT_FOUND;\r |
1344 | goto Done;\r | |
1345 | }\r | |
1346 | }\r | |
1347 | \r | |
1348 | if (Base >= StrLen (String[1])) {\r | |
1349 | Status = EFI_UNSUPPORTED;\r | |
1350 | goto Done;\r | |
1351 | }\r | |
1352 | \r | |
1353 | Found = FALSE;\r | |
1354 | StringPtr = String[1] + Base;\r | |
1355 | Charset = String[0];\r | |
1356 | while (*StringPtr != 0 && !Found) {\r | |
1357 | Index = 0;\r | |
1358 | while (Charset[Index] != 0) {\r | |
1359 | if (*StringPtr >= Charset[Index] && *StringPtr <= Charset[Index + 1]) {\r | |
1360 | if (Flags == EFI_IFR_FLAGS_FIRST_MATCHING) {\r | |
1361 | Found = TRUE;\r | |
1362 | break;\r | |
1363 | }\r | |
1364 | } else {\r | |
1365 | if (Flags == EFI_IFR_FLAGS_FIRST_NON_MATCHING) {\r | |
1366 | Found = TRUE;\r | |
1367 | break;\r | |
1368 | }\r | |
1369 | }\r | |
1370 | //\r | |
1371 | // Skip characters pair representing low-end of a range and high-end of a range\r | |
1372 | //\r | |
1373 | Index += 2;\r | |
1374 | }\r | |
1375 | \r | |
1376 | if (!Found) {\r | |
1377 | StringPtr++;\r | |
1378 | }\r | |
1379 | }\r | |
1380 | \r | |
1381 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1382 | Result->Value.u64 = StringPtr - String[1];\r | |
1383 | \r | |
1384 | Done:\r | |
676df92c | 1385 | if (String[0] != NULL) {\r |
1386 | FreePool (String[0]);\r | |
1387 | }\r | |
1388 | if (String[1] != NULL) {\r | |
1389 | FreePool (String[1]);\r | |
8b0fc5c1 | 1390 | }\r |
7936fb6a | 1391 | \r |
1392 | return Status;\r | |
1393 | }\r | |
1394 | \r | |
1395 | \r | |
1396 | /**\r | |
1397 | Zero extend integer/boolean/date/time to UINT64 for comparing.\r | |
1398 | \r | |
1399 | @param Value HII Value to be converted.\r | |
1400 | \r | |
1401 | **/\r | |
1402 | VOID\r | |
1403 | ExtendValueToU64 (\r | |
1404 | IN EFI_HII_VALUE *Value\r | |
1405 | )\r | |
1406 | {\r | |
1407 | UINT64 Temp;\r | |
1408 | \r | |
1409 | Temp = 0;\r | |
1410 | switch (Value->Type) {\r | |
1411 | case EFI_IFR_TYPE_NUM_SIZE_8:\r | |
1412 | Temp = Value->Value.u8;\r | |
1413 | break;\r | |
1414 | \r | |
1415 | case EFI_IFR_TYPE_NUM_SIZE_16:\r | |
1416 | Temp = Value->Value.u16;\r | |
1417 | break;\r | |
1418 | \r | |
1419 | case EFI_IFR_TYPE_NUM_SIZE_32:\r | |
1420 | Temp = Value->Value.u32;\r | |
1421 | break;\r | |
1422 | \r | |
1423 | case EFI_IFR_TYPE_BOOLEAN:\r | |
1424 | Temp = Value->Value.b;\r | |
1425 | break;\r | |
1426 | \r | |
1427 | case EFI_IFR_TYPE_TIME:\r | |
1428 | Temp = Value->Value.u32 & 0xffffff;\r | |
1429 | break;\r | |
1430 | \r | |
1431 | case EFI_IFR_TYPE_DATE:\r | |
1432 | Temp = Value->Value.u32;\r | |
1433 | break;\r | |
1434 | \r | |
1435 | default:\r | |
1436 | return;\r | |
1437 | }\r | |
1438 | \r | |
1439 | Value->Value.u64 = Temp;\r | |
1440 | }\r | |
1441 | \r | |
1442 | \r | |
1443 | /**\r | |
1444 | Compare two Hii value.\r | |
1445 | \r | |
1446 | @param Value1 Expression value to compare on left-hand.\r | |
1447 | @param Value2 Expression value to compare on right-hand.\r | |
1448 | @param HiiHandle Only required for string compare.\r | |
1449 | \r | |
2573712e LG |
1450 | @retval EFI_INVALID_PARAMETER Could not perform compare on two values.\r |
1451 | @retval 0 Two operators equal.\r | |
7936fb6a | 1452 | @return Positive value if Value1 is greater than Value2.\r |
1453 | @retval Negative value if Value1 is less than Value2.\r | |
1454 | \r | |
1455 | **/\r | |
1456 | INTN\r | |
1457 | CompareHiiValue (\r | |
1458 | IN EFI_HII_VALUE *Value1,\r | |
1459 | IN EFI_HII_VALUE *Value2,\r | |
1460 | IN EFI_HII_HANDLE HiiHandle OPTIONAL\r | |
1461 | )\r | |
1462 | {\r | |
1463 | INTN Result;\r | |
1464 | INT64 Temp64;\r | |
1465 | CHAR16 *Str1;\r | |
1466 | CHAR16 *Str2;\r | |
901ba0e7 | 1467 | UINTN Len;\r |
7936fb6a | 1468 | \r |
1469 | if (Value1->Type >= EFI_IFR_TYPE_OTHER || Value2->Type >= EFI_IFR_TYPE_OTHER ) {\r | |
901ba0e7 ED |
1470 | if (Value1->Type != EFI_IFR_TYPE_BUFFER && Value2->Type != EFI_IFR_TYPE_BUFFER) {\r |
1471 | return EFI_INVALID_PARAMETER;\r | |
1472 | }\r | |
7936fb6a | 1473 | }\r |
1474 | \r | |
1475 | if (Value1->Type == EFI_IFR_TYPE_STRING || Value2->Type == EFI_IFR_TYPE_STRING ) {\r | |
1476 | if (Value1->Type != Value2->Type) {\r | |
1477 | //\r | |
1478 | // Both Operator should be type of String\r | |
1479 | //\r | |
1480 | return EFI_INVALID_PARAMETER;\r | |
1481 | }\r | |
1482 | \r | |
1483 | if (Value1->Value.string == 0 || Value2->Value.string == 0) {\r | |
1484 | //\r | |
1485 | // StringId 0 is reserved\r | |
1486 | //\r | |
1487 | return EFI_INVALID_PARAMETER;\r | |
1488 | }\r | |
1489 | \r | |
1490 | if (Value1->Value.string == Value2->Value.string) {\r | |
1491 | return 0;\r | |
1492 | }\r | |
1493 | \r | |
1494 | Str1 = GetToken (Value1->Value.string, HiiHandle);\r | |
1495 | if (Str1 == NULL) {\r | |
1496 | //\r | |
1497 | // String not found\r | |
1498 | //\r | |
1499 | return EFI_INVALID_PARAMETER;\r | |
1500 | }\r | |
1501 | \r | |
1502 | Str2 = GetToken (Value2->Value.string, HiiHandle);\r | |
1503 | if (Str2 == NULL) {\r | |
f4113e1f | 1504 | FreePool (Str1);\r |
7936fb6a | 1505 | return EFI_INVALID_PARAMETER;\r |
1506 | }\r | |
1507 | \r | |
1508 | Result = StrCmp (Str1, Str2);\r | |
1509 | \r | |
f4113e1f | 1510 | FreePool (Str1);\r |
1511 | FreePool (Str2);\r | |
7936fb6a | 1512 | \r |
1513 | return Result;\r | |
1514 | }\r | |
1515 | \r | |
901ba0e7 ED |
1516 | if (Value1->Type == EFI_IFR_TYPE_BUFFER || Value2->Type == EFI_IFR_TYPE_BUFFER ) {\r |
1517 | if (Value1->Type != Value2->Type) {\r | |
1518 | //\r | |
1519 | // Both Operator should be type of Buffer.\r | |
1520 | //\r | |
1521 | return EFI_INVALID_PARAMETER;\r | |
1522 | }\r | |
1523 | Len = Value1->BufferLen > Value2->BufferLen ? Value2->BufferLen : Value1->BufferLen;\r | |
1524 | Result = CompareMem (Value1->Buffer, Value2->Buffer, Len);\r | |
1525 | if ((Result == 0) && (Value1->BufferLen != Value2->BufferLen))\r | |
1526 | {\r | |
1527 | //\r | |
1528 | // In this case, means base on samll number buffer, the data is same\r | |
1529 | // So which value has more data, which value is bigger.\r | |
1530 | //\r | |
1531 | Result = Value1->BufferLen > Value2->BufferLen ? 1 : -1;\r | |
1532 | }\r | |
1533 | return Result;\r | |
1534 | } \r | |
1535 | \r | |
7936fb6a | 1536 | //\r |
1537 | // Take remain types(integer, boolean, date/time) as integer\r | |
1538 | //\r | |
1539 | Temp64 = (INT64) (Value1->Value.u64 - Value2->Value.u64);\r | |
1540 | if (Temp64 > 0) {\r | |
1541 | Result = 1;\r | |
1542 | } else if (Temp64 < 0) {\r | |
1543 | Result = -1;\r | |
1544 | } else {\r | |
1545 | Result = 0;\r | |
1546 | }\r | |
1547 | \r | |
1548 | return Result;\r | |
1549 | }\r | |
1550 | \r | |
cbf73e50 | 1551 | /**\r |
1552 | Check if current user has the privilege specified by the permissions GUID.\r | |
1553 | \r | |
1554 | @param[in] Guid A GUID specifying setup access permissions.\r | |
1555 | \r | |
1556 | @retval TRUE Current user has the privilege.\r | |
1557 | @retval FALSE Current user does not have the privilege.\r | |
1558 | **/\r | |
1559 | BOOLEAN\r | |
1560 | CheckUserPrivilege (\r | |
1561 | IN EFI_GUID *Guid\r | |
1562 | )\r | |
1563 | {\r | |
1564 | EFI_STATUS Status;\r | |
1565 | EFI_USER_PROFILE_HANDLE UserProfileHandle;\r | |
1566 | EFI_USER_INFO_HANDLE UserInfoHandle;\r | |
1567 | EFI_USER_INFO *UserInfo;\r | |
1568 | EFI_GUID *UserPermissionsGuid;\r | |
1569 | UINTN UserInfoSize;\r | |
1570 | UINTN AccessControlDataSize;\r | |
1571 | EFI_USER_INFO_ACCESS_CONTROL *AccessControl;\r | |
1572 | UINTN RemainSize;\r | |
1573 | \r | |
1574 | if (mUserManager == NULL) {\r | |
1575 | Status = gBS->LocateProtocol (\r | |
1576 | &gEfiUserManagerProtocolGuid,\r | |
1577 | NULL,\r | |
1578 | (VOID **) &mUserManager\r | |
1579 | );\r | |
1580 | if (EFI_ERROR (Status)) {\r | |
1581 | ///\r | |
1582 | /// If the system does not support user management, then it is assumed that\r | |
1583 | /// all users have admin privilege and evaluation of each EFI_IFR_SECURITY\r | |
1584 | /// op-code is always TRUE.\r | |
1585 | ///\r | |
1586 | return TRUE;\r | |
1587 | }\r | |
1588 | }\r | |
1589 | \r | |
1590 | Status = mUserManager->Current (mUserManager, &UserProfileHandle);\r | |
1591 | ASSERT_EFI_ERROR (Status);\r | |
1592 | \r | |
1593 | ///\r | |
1594 | /// Enumerate all user information of the current user profile\r | |
1595 | /// to look for any EFI_USER_INFO_ACCESS_SETUP record.\r | |
1596 | ///\r | |
1597 | \r | |
1598 | for (UserInfoHandle = NULL;;) {\r | |
1599 | Status = mUserManager->GetNextInfo (mUserManager, UserProfileHandle, &UserInfoHandle);\r | |
1600 | if (EFI_ERROR (Status)) {\r | |
1601 | break;\r | |
1602 | }\r | |
1603 | \r | |
1604 | UserInfoSize = 0;\r | |
1605 | Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, NULL, &UserInfoSize);\r | |
1606 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
1607 | continue;\r | |
1608 | }\r | |
1609 | \r | |
1610 | UserInfo = (EFI_USER_INFO *) AllocatePool (UserInfoSize);\r | |
1611 | if (UserInfo == NULL) {\r | |
1612 | break;\r | |
1613 | }\r | |
1614 | \r | |
1615 | Status = mUserManager->GetInfo (mUserManager, UserProfileHandle, UserInfoHandle, UserInfo, &UserInfoSize);\r | |
1616 | if (EFI_ERROR (Status) ||\r | |
1617 | UserInfo->InfoType != EFI_USER_INFO_ACCESS_POLICY_RECORD ||\r | |
1618 | UserInfo->InfoSize <= sizeof (EFI_USER_INFO)) {\r | |
1619 | FreePool (UserInfo);\r | |
1620 | continue;\r | |
1621 | }\r | |
1622 | \r | |
1623 | RemainSize = UserInfo->InfoSize - sizeof (EFI_USER_INFO);\r | |
1624 | AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)(UserInfo + 1);\r | |
1625 | while (RemainSize >= sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {\r | |
3dd405be | 1626 | if (RemainSize < AccessControl->Size || AccessControl->Size < sizeof (EFI_USER_INFO_ACCESS_CONTROL)) {\r |
cbf73e50 | 1627 | break;\r |
1628 | }\r | |
1629 | if (AccessControl->Type == EFI_USER_INFO_ACCESS_SETUP) {\r | |
1630 | ///\r | |
1631 | /// Check if current user has the privilege specified by the permissions GUID.\r | |
1632 | ///\r | |
1633 | \r | |
1634 | UserPermissionsGuid = (EFI_GUID *)(AccessControl + 1);\r | |
1635 | AccessControlDataSize = AccessControl->Size - sizeof (EFI_USER_INFO_ACCESS_CONTROL);\r | |
1636 | while (AccessControlDataSize >= sizeof (EFI_GUID)) {\r | |
1637 | if (CompareGuid (Guid, UserPermissionsGuid)) {\r | |
1638 | FreePool (UserInfo);\r | |
1639 | return TRUE;\r | |
1640 | }\r | |
1641 | UserPermissionsGuid++;\r | |
1642 | AccessControlDataSize -= sizeof (EFI_GUID);\r | |
1643 | }\r | |
1644 | }\r | |
1645 | RemainSize -= AccessControl->Size;\r | |
1646 | AccessControl = (EFI_USER_INFO_ACCESS_CONTROL *)((UINT8 *)AccessControl + AccessControl->Size);\r | |
1647 | }\r | |
1648 | \r | |
1649 | FreePool (UserInfo);\r | |
1650 | }\r | |
1651 | return FALSE;\r | |
1652 | }\r | |
7936fb6a | 1653 | \r |
1654 | /**\r | |
bc166db3 | 1655 | Evaluate the result of a HII expression.\r |
1656 | \r | |
1657 | If Expression is NULL, then ASSERT.\r | |
7936fb6a | 1658 | \r |
1659 | @param FormSet FormSet associated with this expression.\r | |
1660 | @param Form Form associated with this expression.\r | |
1661 | @param Expression Expression to be evaluated.\r | |
1662 | \r | |
1663 | @retval EFI_SUCCESS The expression evaluated successfuly\r | |
1664 | @retval EFI_NOT_FOUND The Question which referenced by a QuestionId\r | |
1665 | could not be found.\r | |
1666 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
1667 | stack.\r | |
1668 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
1669 | @retval EFI_INVALID_PARAMETER Syntax error with the Expression\r | |
1670 | \r | |
1671 | **/\r | |
1672 | EFI_STATUS\r | |
1673 | EvaluateExpression (\r | |
1674 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1675 | IN FORM_BROWSER_FORM *Form,\r | |
1676 | IN OUT FORM_EXPRESSION *Expression\r | |
1677 | )\r | |
1678 | {\r | |
1679 | EFI_STATUS Status;\r | |
1680 | LIST_ENTRY *Link;\r | |
1681 | EXPRESSION_OPCODE *OpCode;\r | |
1682 | FORM_BROWSER_STATEMENT *Question;\r | |
1683 | FORM_BROWSER_STATEMENT *Question2;\r | |
1684 | UINT16 Index;\r | |
1685 | EFI_HII_VALUE Data1;\r | |
1686 | EFI_HII_VALUE Data2;\r | |
1687 | EFI_HII_VALUE Data3;\r | |
1688 | FORM_EXPRESSION *RuleExpression;\r | |
1689 | EFI_HII_VALUE *Value;\r | |
1690 | INTN Result;\r | |
1691 | CHAR16 *StrPtr;\r | |
2573712e | 1692 | CHAR16 *NameValue;\r |
7936fb6a | 1693 | UINT32 TempValue;\r |
2573712e LG |
1694 | LIST_ENTRY *SubExpressionLink;\r |
1695 | FORM_EXPRESSION *SubExpression;\r | |
1696 | UINTN StackOffset;\r | |
1697 | UINTN TempLength;\r | |
1698 | CHAR16 TempStr[5];\r | |
1699 | UINT8 DigitUint8;\r | |
1700 | UINT8 *TempBuffer;\r | |
1701 | EFI_TIME EfiTime;\r | |
7936fb6a | 1702 | \r |
1703 | //\r | |
2573712e | 1704 | // Save current stack offset.\r |
7936fb6a | 1705 | //\r |
2573712e | 1706 | StackOffset = SaveExpressionEvaluationStackOffset ();\r |
7936fb6a | 1707 | \r |
bc166db3 | 1708 | ASSERT (Expression != NULL);\r |
7936fb6a | 1709 | Expression->Result.Type = EFI_IFR_TYPE_OTHER;\r |
1710 | \r | |
1711 | Link = GetFirstNode (&Expression->OpCodeListHead);\r | |
1712 | while (!IsNull (&Expression->OpCodeListHead, Link)) {\r | |
1713 | OpCode = EXPRESSION_OPCODE_FROM_LINK (Link);\r | |
1714 | \r | |
1715 | Link = GetNextNode (&Expression->OpCodeListHead, Link);\r | |
1716 | \r | |
1717 | ZeroMem (&Data1, sizeof (EFI_HII_VALUE));\r | |
1718 | ZeroMem (&Data2, sizeof (EFI_HII_VALUE));\r | |
1719 | ZeroMem (&Data3, sizeof (EFI_HII_VALUE));\r | |
1720 | \r | |
1721 | Value = &Data3;\r | |
1722 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
1723 | Status = EFI_SUCCESS;\r | |
1724 | \r | |
1725 | switch (OpCode->Operand) {\r | |
1726 | //\r | |
1727 | // Built-in functions\r | |
1728 | //\r | |
1729 | case EFI_IFR_EQ_ID_VAL_OP:\r | |
1730 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1731 | if (Question == NULL) {\r | |
2573712e LG |
1732 | Status = EFI_NOT_FOUND;\r |
1733 | goto Done;\r | |
7936fb6a | 1734 | }\r |
1735 | \r | |
1736 | Result = CompareHiiValue (&Question->HiiValue, &OpCode->Value, NULL);\r | |
1737 | if (Result == EFI_INVALID_PARAMETER) {\r | |
2573712e LG |
1738 | Status = EFI_INVALID_PARAMETER;\r |
1739 | goto Done;\r | |
7936fb6a | 1740 | }\r |
1741 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1742 | break;\r | |
1743 | \r | |
1744 | case EFI_IFR_EQ_ID_ID_OP:\r | |
1745 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1746 | if (Question == NULL) {\r | |
2573712e LG |
1747 | Status = EFI_NOT_FOUND;\r |
1748 | goto Done;\r | |
7936fb6a | 1749 | }\r |
1750 | \r | |
1751 | Question2 = IdToQuestion (FormSet, Form, OpCode->QuestionId2);\r | |
1752 | if (Question2 == NULL) {\r | |
2573712e LG |
1753 | Status = EFI_NOT_FOUND;\r |
1754 | goto Done;\r | |
7936fb6a | 1755 | }\r |
1756 | \r | |
1757 | Result = CompareHiiValue (&Question->HiiValue, &Question2->HiiValue, FormSet->HiiHandle);\r | |
1758 | if (Result == EFI_INVALID_PARAMETER) {\r | |
2573712e LG |
1759 | Status = EFI_INVALID_PARAMETER;\r |
1760 | goto Done;\r | |
7936fb6a | 1761 | }\r |
1762 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1763 | break;\r | |
1764 | \r | |
1765 | case EFI_IFR_EQ_ID_LIST_OP:\r | |
1766 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1767 | if (Question == NULL) {\r | |
2573712e LG |
1768 | Status = EFI_NOT_FOUND;\r |
1769 | goto Done;\r | |
7936fb6a | 1770 | }\r |
1771 | \r | |
1772 | Value->Value.b = FALSE;\r | |
1773 | for (Index =0; Index < OpCode->ListLength; Index++) {\r | |
1774 | if (Question->HiiValue.Value.u16 == OpCode->ValueList[Index]) {\r | |
1775 | Value->Value.b = TRUE;\r | |
1776 | break;\r | |
1777 | }\r | |
1778 | }\r | |
1779 | break;\r | |
1780 | \r | |
1781 | case EFI_IFR_DUP_OP:\r | |
1782 | Status = PopExpression (Value);\r | |
1783 | if (EFI_ERROR (Status)) {\r | |
2573712e | 1784 | goto Done;\r |
7936fb6a | 1785 | }\r |
1786 | \r | |
1787 | Status = PushExpression (Value);\r | |
1788 | break;\r | |
1789 | \r | |
1790 | case EFI_IFR_QUESTION_REF1_OP:\r | |
1791 | case EFI_IFR_THIS_OP:\r | |
1792 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1793 | if (Question == NULL) {\r | |
2573712e LG |
1794 | Status = EFI_NOT_FOUND;\r |
1795 | goto Done;\r | |
7936fb6a | 1796 | }\r |
1797 | \r | |
1798 | Value = &Question->HiiValue;\r | |
1799 | break;\r | |
1800 | \r | |
cbf73e50 | 1801 | case EFI_IFR_SECURITY_OP:\r |
1802 | Value->Value.b = CheckUserPrivilege (&OpCode->Guid);\r | |
1803 | break;\r | |
1804 | \r | |
2573712e LG |
1805 | case EFI_IFR_GET_OP:\r |
1806 | //\r | |
1807 | // Get Value from VarStore buffer, EFI VarStore, Name/Value VarStore.\r | |
1808 | //\r | |
1809 | Value->Type = EFI_IFR_TYPE_UNDEFINED;\r | |
1810 | Value->Value.u8 = 0;\r | |
1811 | if (OpCode->VarStorage != NULL) {\r | |
1812 | switch (OpCode->VarStorage->Type) {\r | |
1813 | case EFI_HII_VARSTORE_BUFFER:\r | |
cce6230f | 1814 | case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:\r |
2573712e LG |
1815 | //\r |
1816 | // Get value from Edit Buffer\r | |
1817 | //\r | |
1818 | Value->Type = OpCode->ValueType;\r | |
1819 | CopyMem (&Value->Value, OpCode->VarStorage->EditBuffer + OpCode->VarStoreInfo.VarOffset, OpCode->ValueWidth);\r | |
1820 | break;\r | |
1821 | case EFI_HII_VARSTORE_NAME_VALUE:\r | |
1822 | if (OpCode->ValueType != EFI_IFR_TYPE_STRING) {\r | |
1823 | //\r | |
1824 | // Get value from string except for STRING value.\r | |
1825 | //\r | |
1826 | Status = GetValueByName (OpCode->VarStorage, OpCode->ValueName, &StrPtr);\r | |
1827 | if (!EFI_ERROR (Status)) {\r | |
771ececd | 1828 | ASSERT (StrPtr != NULL);\r |
2573712e LG |
1829 | TempLength = StrLen (StrPtr);\r |
1830 | if (OpCode->ValueWidth >= ((TempLength + 1) / 2)) {\r | |
1831 | Value->Type = OpCode->ValueType;\r | |
1832 | TempBuffer = (UINT8 *) &Value->Value;\r | |
1833 | ZeroMem (TempStr, sizeof (TempStr));\r | |
1834 | for (Index = 0; Index < TempLength; Index ++) {\r | |
1835 | TempStr[0] = StrPtr[TempLength - Index - 1];\r | |
1836 | DigitUint8 = (UINT8) StrHexToUint64 (TempStr);\r | |
1837 | if ((Index & 1) == 0) {\r | |
1838 | TempBuffer [Index/2] = DigitUint8;\r | |
1839 | } else {\r | |
771ececd | 1840 | TempBuffer [Index/2] = (UINT8) ((DigitUint8 << 4) + TempBuffer [Index/2]);\r |
2573712e LG |
1841 | }\r |
1842 | }\r | |
1843 | } \r | |
1844 | }\r | |
1845 | }\r | |
1846 | break;\r | |
1847 | case EFI_HII_VARSTORE_EFI_VARIABLE:\r | |
1848 | //\r | |
1849 | // Get value from variable.\r | |
1850 | //\r | |
1851 | TempLength = OpCode->ValueWidth;\r | |
1852 | Value->Type = OpCode->ValueType;\r | |
1853 | Status = gRT->GetVariable (\r | |
1854 | OpCode->ValueName,\r | |
1855 | &OpCode->VarStorage->Guid,\r | |
1856 | NULL,\r | |
1857 | &TempLength,\r | |
1858 | &Value->Value\r | |
1859 | );\r | |
1860 | if (EFI_ERROR (Status)) {\r | |
1861 | Value->Type = EFI_IFR_TYPE_UNDEFINED;\r | |
1862 | Value->Value.u8 = 0;\r | |
1863 | }\r | |
cce6230f | 1864 | break;\r |
2573712e LG |
1865 | default:\r |
1866 | //\r | |
1867 | // Not recognize storage.\r | |
1868 | //\r | |
1869 | Status = EFI_UNSUPPORTED;\r | |
1870 | goto Done;\r | |
1871 | }\r | |
1872 | } else {\r | |
1873 | //\r | |
1874 | // For Time/Date Data\r | |
1875 | //\r | |
1876 | if (OpCode->ValueType != EFI_IFR_TYPE_DATE && OpCode->ValueType != EFI_IFR_TYPE_TIME) {\r | |
1877 | //\r | |
1878 | // Only support Data/Time data when storage doesn't exist.\r | |
1879 | //\r | |
1880 | Status = EFI_UNSUPPORTED;\r | |
1881 | goto Done;\r | |
1882 | }\r | |
1883 | Status = gRT->GetTime (&EfiTime, NULL);\r | |
1884 | if (!EFI_ERROR (Status)) {\r | |
1885 | if (OpCode->ValueType == EFI_IFR_TYPE_DATE) {\r | |
1886 | switch (OpCode->VarStoreInfo.VarOffset) {\r | |
1887 | case 0x00:\r | |
1888 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_16;\r | |
1889 | Value->Value.u16 = EfiTime.Year;\r | |
1890 | break;\r | |
1891 | case 0x02:\r | |
1892 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
1893 | Value->Value.u8 = EfiTime.Month;\r | |
1894 | break;\r | |
1895 | case 0x03:\r | |
1896 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
1897 | Value->Value.u8 = EfiTime.Day;\r | |
1898 | break;\r | |
1899 | default:\r | |
1900 | //\r | |
1901 | // Invalid Date field.\r | |
1902 | //\r | |
1903 | Status = EFI_INVALID_PARAMETER;\r | |
1904 | goto Done;\r | |
1905 | }\r | |
1906 | } else {\r | |
1907 | switch (OpCode->VarStoreInfo.VarOffset) {\r | |
1908 | case 0x00:\r | |
1909 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
1910 | Value->Value.u8 = EfiTime.Hour;\r | |
1911 | break;\r | |
1912 | case 0x01:\r | |
1913 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
1914 | Value->Value.u8 = EfiTime.Minute;\r | |
1915 | break;\r | |
1916 | case 0x02:\r | |
1917 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
1918 | Value->Value.u8 = EfiTime.Second;\r | |
1919 | break;\r | |
1920 | default:\r | |
1921 | //\r | |
1922 | // Invalid Time field.\r | |
1923 | //\r | |
1924 | Status = EFI_INVALID_PARAMETER;\r | |
1925 | goto Done;\r | |
1926 | }\r | |
1927 | }\r | |
1928 | }\r | |
1929 | }\r | |
1930 | \r | |
1931 | break;\r | |
1932 | \r | |
7936fb6a | 1933 | case EFI_IFR_QUESTION_REF3_OP:\r |
1934 | if (OpCode->DevicePath == 0) {\r | |
1935 | //\r | |
1936 | // EFI_IFR_QUESTION_REF3\r | |
1937 | // Pop an expression from the expression stack\r | |
1938 | //\r | |
1939 | Status = PopExpression (Value);\r | |
1940 | if (EFI_ERROR (Status)) {\r | |
2573712e | 1941 | goto Done;\r |
7936fb6a | 1942 | }\r |
1943 | \r | |
1944 | //\r | |
1945 | // Validate the expression value\r | |
1946 | //\r | |
1947 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
2573712e LG |
1948 | Status = EFI_NOT_FOUND;\r |
1949 | goto Done;\r | |
7936fb6a | 1950 | }\r |
1951 | \r | |
1952 | Question = IdToQuestion (FormSet, Form, Value->Value.u16);\r | |
1953 | if (Question == NULL) {\r | |
2573712e LG |
1954 | Status = EFI_NOT_FOUND;\r |
1955 | goto Done;\r | |
7936fb6a | 1956 | }\r |
1957 | \r | |
1958 | //\r | |
1959 | // push the questions' value on to the expression stack\r | |
1960 | //\r | |
1961 | Value = &Question->HiiValue;\r | |
1962 | } else {\r | |
1963 | //\r | |
1964 | // BUGBUG: push 0 for EFI_IFR_QUESTION_REF3_2 and EFI_IFR_QUESTION_REF3_3,\r | |
1965 | // since it is impractical to evaluate the value of a Question in another\r | |
1966 | // Hii Package list.\r | |
1967 | //\r | |
1968 | ZeroMem (Value, sizeof (EFI_HII_VALUE));\r | |
1969 | }\r | |
1970 | break;\r | |
1971 | \r | |
1972 | case EFI_IFR_RULE_REF_OP:\r | |
1973 | //\r | |
1974 | // Find expression for this rule\r | |
1975 | //\r | |
1976 | RuleExpression = RuleIdToExpression (Form, OpCode->RuleId);\r | |
1977 | if (RuleExpression == NULL) {\r | |
2573712e LG |
1978 | Status = EFI_NOT_FOUND;\r |
1979 | goto Done;\r | |
7936fb6a | 1980 | }\r |
1981 | \r | |
1982 | //\r | |
1983 | // Evaluate this rule expression\r | |
1984 | //\r | |
1985 | Status = EvaluateExpression (FormSet, Form, RuleExpression);\r | |
1986 | if (EFI_ERROR (Status)) {\r | |
2573712e | 1987 | goto Done;\r |
7936fb6a | 1988 | }\r |
1989 | \r | |
1990 | Value = &RuleExpression->Result;\r | |
1991 | break;\r | |
1992 | \r | |
1993 | case EFI_IFR_STRING_REF1_OP:\r | |
1994 | Value->Type = EFI_IFR_TYPE_STRING;\r | |
1995 | Value->Value.string = OpCode->Value.Value.string;\r | |
1996 | break;\r | |
1997 | \r | |
1998 | //\r | |
1999 | // Constant\r | |
2000 | //\r | |
2001 | case EFI_IFR_TRUE_OP:\r | |
2002 | case EFI_IFR_FALSE_OP:\r | |
2003 | case EFI_IFR_ONE_OP:\r | |
2004 | case EFI_IFR_ONES_OP:\r | |
2005 | case EFI_IFR_UINT8_OP:\r | |
2006 | case EFI_IFR_UINT16_OP:\r | |
2007 | case EFI_IFR_UINT32_OP:\r | |
2008 | case EFI_IFR_UINT64_OP:\r | |
2009 | case EFI_IFR_UNDEFINED_OP:\r | |
2010 | case EFI_IFR_VERSION_OP:\r | |
2011 | case EFI_IFR_ZERO_OP:\r | |
2012 | Value = &OpCode->Value;\r | |
2013 | break;\r | |
2014 | \r | |
2015 | //\r | |
2016 | // unary-op\r | |
2017 | //\r | |
2018 | case EFI_IFR_LENGTH_OP:\r | |
2019 | Status = PopExpression (Value);\r | |
2020 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2021 | goto Done;\r |
7936fb6a | 2022 | }\r |
901ba0e7 | 2023 | if (Value->Type != EFI_IFR_TYPE_STRING && Value->Type != EFI_IFR_TYPE_BUFFER) {\r |
2573712e LG |
2024 | Status = EFI_INVALID_PARAMETER;\r |
2025 | goto Done;\r | |
7936fb6a | 2026 | }\r |
2027 | \r | |
901ba0e7 ED |
2028 | if (Value->Type == EFI_IFR_TYPE_STRING) {\r |
2029 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
2030 | if (StrPtr == NULL) {\r | |
2031 | Status = EFI_INVALID_PARAMETER;\r | |
2032 | goto Done;\r | |
2033 | }\r | |
7936fb6a | 2034 | \r |
901ba0e7 ED |
2035 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r |
2036 | Value->Value.u64 = StrLen (StrPtr);\r | |
2037 | FreePool (StrPtr);\r | |
2038 | } else {\r | |
2039 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
2040 | Value->Value.u64 = Value->BufferLen;\r | |
2041 | FreePool (Value->Buffer);\r | |
2042 | }\r | |
7936fb6a | 2043 | break;\r |
2044 | \r | |
2045 | case EFI_IFR_NOT_OP:\r | |
2046 | Status = PopExpression (Value);\r | |
2047 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2048 | goto Done;\r |
7936fb6a | 2049 | }\r |
2050 | if (Value->Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
2573712e LG |
2051 | Status = EFI_INVALID_PARAMETER;\r |
2052 | goto Done;\r | |
7936fb6a | 2053 | }\r |
2054 | Value->Value.b = (BOOLEAN) (!Value->Value.b);\r | |
2055 | break;\r | |
2056 | \r | |
2057 | case EFI_IFR_QUESTION_REF2_OP:\r | |
2058 | //\r | |
2059 | // Pop an expression from the expression stack\r | |
2060 | //\r | |
2061 | Status = PopExpression (Value);\r | |
2062 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2063 | goto Done;\r |
7936fb6a | 2064 | }\r |
2065 | \r | |
2066 | //\r | |
2067 | // Validate the expression value\r | |
2068 | //\r | |
2069 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
2573712e LG |
2070 | Status = EFI_NOT_FOUND;\r |
2071 | goto Done;\r | |
7936fb6a | 2072 | }\r |
2073 | \r | |
2074 | Question = IdToQuestion (FormSet, Form, Value->Value.u16);\r | |
2075 | if (Question == NULL) {\r | |
2573712e LG |
2076 | Status = EFI_NOT_FOUND;\r |
2077 | goto Done;\r | |
7936fb6a | 2078 | }\r |
2079 | \r | |
2080 | Value = &Question->HiiValue;\r | |
2081 | break;\r | |
2082 | \r | |
2083 | case EFI_IFR_STRING_REF2_OP:\r | |
2084 | //\r | |
2085 | // Pop an expression from the expression stack\r | |
2086 | //\r | |
2087 | Status = PopExpression (Value);\r | |
2088 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2089 | goto Done;\r |
7936fb6a | 2090 | }\r |
2091 | \r | |
2092 | //\r | |
2093 | // Validate the expression value\r | |
2094 | //\r | |
2095 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
2573712e LG |
2096 | Status = EFI_NOT_FOUND;\r |
2097 | goto Done;\r | |
7936fb6a | 2098 | }\r |
2099 | \r | |
2100 | Value->Type = EFI_IFR_TYPE_STRING;\r | |
2101 | StrPtr = GetToken (Value->Value.u16, FormSet->HiiHandle);\r | |
2102 | if (StrPtr == NULL) {\r | |
2103 | //\r | |
2104 | // If String not exit, push an empty string\r | |
2105 | //\r | |
2106 | Value->Value.string = NewString (gEmptyString, FormSet->HiiHandle);\r | |
2107 | } else {\r | |
2108 | Index = (UINT16) Value->Value.u64;\r | |
2109 | Value->Value.string = Index;\r | |
f4113e1f | 2110 | FreePool (StrPtr);\r |
7936fb6a | 2111 | }\r |
2112 | break;\r | |
2113 | \r | |
2114 | case EFI_IFR_TO_BOOLEAN_OP:\r | |
2115 | //\r | |
2116 | // Pop an expression from the expression stack\r | |
2117 | //\r | |
2118 | Status = PopExpression (Value);\r | |
2119 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2120 | goto Done;\r |
7936fb6a | 2121 | }\r |
2122 | \r | |
2123 | //\r | |
2124 | // Convert an expression to a Boolean\r | |
2125 | //\r | |
2126 | if (Value->Type <= EFI_IFR_TYPE_DATE) {\r | |
2127 | //\r | |
2128 | // When converting from an unsigned integer, zero will be converted to\r | |
2129 | // FALSE and any other value will be converted to TRUE.\r | |
2130 | //\r | |
4140a663 | 2131 | Value->Value.b = (BOOLEAN) (Value->Value.u64 != 0);\r |
7936fb6a | 2132 | \r |
2133 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
2134 | } else if (Value->Type == EFI_IFR_TYPE_STRING) {\r | |
2135 | //\r | |
2136 | // When converting from a string, if case-insensitive compare\r | |
2137 | // with "true" is True, then push True. If a case-insensitive compare\r | |
39099cbd | 2138 | // with "false" is True, then push False. Otherwise, push Undefined. \r |
7936fb6a | 2139 | //\r |
2140 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
2141 | if (StrPtr == NULL) {\r | |
2573712e LG |
2142 | Status = EFI_INVALID_PARAMETER;\r |
2143 | goto Done;\r | |
7936fb6a | 2144 | }\r |
39099cbd ED |
2145 | \r |
2146 | IfrStrToUpper (StrPtr);\r | |
2147 | if (StrCmp (StrPtr, L"TRUE") == 0){\r | |
7936fb6a | 2148 | Value->Value.b = TRUE;\r |
39099cbd | 2149 | } else if (StrCmp (StrPtr, L"FALSE") == 0) {\r |
7936fb6a | 2150 | Value->Value.b = FALSE;\r |
39099cbd ED |
2151 | } else {\r |
2152 | Status = EFI_INVALID_PARAMETER;\r | |
2153 | FreePool (StrPtr);\r | |
2154 | goto Done;\r | |
7936fb6a | 2155 | }\r |
f4113e1f | 2156 | FreePool (StrPtr);\r |
7936fb6a | 2157 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r |
901ba0e7 ED |
2158 | } else if (Value->Type == EFI_IFR_TYPE_BUFFER) {\r |
2159 | //\r | |
2160 | // When converting from a buffer, if the buffer is all zeroes, \r | |
2161 | // then push False. Otherwise push True. \r | |
2162 | //\r | |
2163 | for (Index =0; Index < Value->BufferLen; Index ++) {\r | |
2164 | if (Value->Buffer[Index] != 0) { \r | |
2165 | break;\r | |
2166 | }\r | |
2167 | }\r | |
2168 | \r | |
2169 | if (Index >= Value->BufferLen) {\r | |
2170 | Value->Value.b = FALSE;\r | |
2171 | } else {\r | |
2172 | Value->Value.b = TRUE;\r | |
2173 | }\r | |
2174 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
2175 | FreePool (Value->Buffer);\r | |
7936fb6a | 2176 | }\r |
2177 | break;\r | |
2178 | \r | |
2179 | case EFI_IFR_TO_STRING_OP:\r | |
2180 | Status = IfrToString (FormSet, OpCode->Format, Value);\r | |
2181 | break;\r | |
2182 | \r | |
2183 | case EFI_IFR_TO_UINT_OP:\r | |
2184 | Status = IfrToUint (FormSet, Value);\r | |
2185 | break;\r | |
2186 | \r | |
2187 | case EFI_IFR_TO_LOWER_OP:\r | |
2188 | case EFI_IFR_TO_UPPER_OP:\r | |
2189 | Status = InitializeUnicodeCollationProtocol ();\r | |
2190 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2191 | goto Done;\r |
7936fb6a | 2192 | }\r |
2193 | \r | |
2194 | Status = PopExpression (Value);\r | |
2195 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2196 | goto Done;\r |
7936fb6a | 2197 | }\r |
2198 | \r | |
2199 | if (Value->Type != EFI_IFR_TYPE_STRING) {\r | |
2573712e LG |
2200 | Status = EFI_UNSUPPORTED;\r |
2201 | goto Done;\r | |
7936fb6a | 2202 | }\r |
2203 | \r | |
2204 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
2205 | if (StrPtr == NULL) {\r | |
2573712e LG |
2206 | Status = EFI_NOT_FOUND;\r |
2207 | goto Done;\r | |
7936fb6a | 2208 | }\r |
2209 | \r | |
2210 | if (OpCode->Operand == EFI_IFR_TO_LOWER_OP) {\r | |
2211 | mUnicodeCollation->StrLwr (mUnicodeCollation, StrPtr);\r | |
2212 | } else {\r | |
2213 | mUnicodeCollation->StrUpr (mUnicodeCollation, StrPtr);\r | |
2214 | }\r | |
2215 | Value->Value.string = NewString (StrPtr, FormSet->HiiHandle);\r | |
f4113e1f | 2216 | FreePool (StrPtr);\r |
7936fb6a | 2217 | break;\r |
2218 | \r | |
2219 | case EFI_IFR_BITWISE_NOT_OP:\r | |
2220 | //\r | |
2221 | // Pop an expression from the expression stack\r | |
2222 | //\r | |
2223 | Status = PopExpression (Value);\r | |
2224 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2225 | goto Done;\r |
7936fb6a | 2226 | }\r |
2227 | if (Value->Type > EFI_IFR_TYPE_DATE) {\r | |
2573712e LG |
2228 | Status = EFI_INVALID_PARAMETER;\r |
2229 | goto Done;\r | |
7936fb6a | 2230 | }\r |
2231 | \r | |
2232 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
2233 | Value->Value.u64 = ~Value->Value.u64;\r | |
2234 | break;\r | |
2235 | \r | |
2573712e LG |
2236 | case EFI_IFR_SET_OP:\r |
2237 | //\r | |
2238 | // Pop an expression from the expression stack\r | |
2239 | //\r | |
2240 | Status = PopExpression (Value);\r | |
2241 | if (EFI_ERROR (Status)) {\r | |
2242 | goto Done;\r | |
2243 | }\r | |
2244 | Data1.Type = EFI_IFR_TYPE_BOOLEAN;\r | |
2245 | Data1.Value.b = FALSE;\r | |
2246 | //\r | |
2247 | // Set value to var storage buffer\r | |
2248 | //\r | |
2249 | if (OpCode->VarStorage != NULL) {\r | |
2250 | switch (OpCode->VarStorage->Type) {\r | |
2251 | case EFI_HII_VARSTORE_BUFFER:\r | |
cce6230f | 2252 | case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:\r |
2573712e LG |
2253 | CopyMem (OpCode->VarStorage->EditBuffer + OpCode->VarStoreInfo.VarOffset, &Value->Value, OpCode->ValueWidth);\r |
2254 | Data1.Value.b = TRUE;\r | |
2255 | break;\r | |
2256 | case EFI_HII_VARSTORE_NAME_VALUE:\r | |
2257 | if (OpCode->ValueType != EFI_IFR_TYPE_STRING) {\r | |
2258 | NameValue = AllocateZeroPool ((OpCode->ValueWidth * 2 + 1) * sizeof (CHAR16));\r | |
2259 | ASSERT (Value != NULL);\r | |
2260 | //\r | |
2261 | // Convert Buffer to Hex String\r | |
2262 | //\r | |
2263 | TempBuffer = (UINT8 *) &Value->Value + OpCode->ValueWidth - 1;\r | |
2264 | StrPtr = NameValue;\r | |
2265 | for (Index = 0; Index < OpCode->ValueWidth; Index ++, TempBuffer --) {\r | |
2266 | StrPtr += UnicodeValueToString (StrPtr, PREFIX_ZERO | RADIX_HEX, *TempBuffer, 2);\r | |
2267 | }\r | |
b18e7050 | 2268 | Status = SetValueByName (OpCode->VarStorage, OpCode->ValueName, NameValue, TRUE);\r |
2573712e LG |
2269 | FreePool (NameValue);\r |
2270 | if (!EFI_ERROR (Status)) {\r | |
2271 | Data1.Value.b = TRUE;\r | |
2272 | }\r | |
2273 | }\r | |
2274 | break;\r | |
2275 | case EFI_HII_VARSTORE_EFI_VARIABLE:\r | |
2276 | Status = gRT->SetVariable (\r | |
2277 | OpCode->ValueName,\r | |
2278 | &OpCode->VarStorage->Guid,\r | |
2279 | OpCode->VarStorage->Attributes,\r | |
2280 | OpCode->ValueWidth,\r | |
2281 | &Value->Value\r | |
2282 | );\r | |
2283 | if (!EFI_ERROR (Status)) {\r | |
2284 | Data1.Value.b = TRUE;\r | |
2285 | }\r | |
2286 | break;\r | |
2287 | default:\r | |
2288 | //\r | |
2289 | // Not recognize storage.\r | |
2290 | //\r | |
2291 | Status = EFI_UNSUPPORTED;\r | |
2292 | goto Done;\r | |
2293 | break;\r | |
2294 | }\r | |
2295 | } else {\r | |
2296 | //\r | |
2297 | // For Time/Date Data\r | |
2298 | //\r | |
2299 | if (OpCode->ValueType != EFI_IFR_TYPE_DATE && OpCode->ValueType != EFI_IFR_TYPE_TIME) {\r | |
2300 | //\r | |
2301 | // Only support Data/Time data when storage doesn't exist.\r | |
2302 | //\r | |
2303 | Status = EFI_UNSUPPORTED;\r | |
2304 | goto Done;\r | |
2305 | }\r | |
2306 | Status = gRT->GetTime (&EfiTime, NULL);\r | |
2307 | if (!EFI_ERROR (Status)) {\r | |
2308 | if (OpCode->ValueType == EFI_IFR_TYPE_DATE) {\r | |
2309 | switch (OpCode->VarStoreInfo.VarOffset) {\r | |
2310 | case 0x00:\r | |
2311 | EfiTime.Year = Value->Value.u16;\r | |
2312 | break;\r | |
2313 | case 0x02:\r | |
2314 | EfiTime.Month = Value->Value.u8;\r | |
2315 | break;\r | |
2316 | case 0x03:\r | |
2317 | EfiTime.Day = Value->Value.u8;\r | |
2318 | break;\r | |
2319 | default:\r | |
2320 | //\r | |
2321 | // Invalid Date field.\r | |
2322 | //\r | |
2323 | Status = EFI_INVALID_PARAMETER;\r | |
2324 | goto Done;\r | |
2325 | }\r | |
2326 | } else {\r | |
2327 | switch (OpCode->VarStoreInfo.VarOffset) {\r | |
2328 | case 0x00:\r | |
2329 | EfiTime.Hour = Value->Value.u8;\r | |
2330 | break;\r | |
2331 | case 0x01:\r | |
2332 | EfiTime.Minute = Value->Value.u8;\r | |
2333 | break;\r | |
2334 | case 0x02:\r | |
2335 | EfiTime.Second = Value->Value.u8;\r | |
2336 | break;\r | |
2337 | default:\r | |
2338 | //\r | |
2339 | // Invalid Time field.\r | |
2340 | //\r | |
2341 | Status = EFI_INVALID_PARAMETER;\r | |
2342 | goto Done;\r | |
2343 | }\r | |
2344 | }\r | |
2345 | Status = gRT->SetTime (&EfiTime);\r | |
2346 | if (!EFI_ERROR (Status)) {\r | |
2347 | Data1.Value.b = TRUE;\r | |
2348 | }\r | |
2349 | }\r | |
2350 | }\r | |
2351 | Value = &Data1;\r | |
2352 | break;\r | |
2353 | \r | |
7936fb6a | 2354 | //\r |
2355 | // binary-op\r | |
2356 | //\r | |
2357 | case EFI_IFR_ADD_OP:\r | |
2358 | case EFI_IFR_SUBTRACT_OP:\r | |
2359 | case EFI_IFR_MULTIPLY_OP:\r | |
2360 | case EFI_IFR_DIVIDE_OP:\r | |
2361 | case EFI_IFR_MODULO_OP:\r | |
2362 | case EFI_IFR_BITWISE_AND_OP:\r | |
2363 | case EFI_IFR_BITWISE_OR_OP:\r | |
2364 | case EFI_IFR_SHIFT_LEFT_OP:\r | |
2365 | case EFI_IFR_SHIFT_RIGHT_OP:\r | |
2366 | //\r | |
2367 | // Pop an expression from the expression stack\r | |
2368 | //\r | |
2369 | Status = PopExpression (&Data2);\r | |
2370 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2371 | goto Done;\r |
7936fb6a | 2372 | }\r |
2373 | if (Data2.Type > EFI_IFR_TYPE_DATE) {\r | |
2573712e LG |
2374 | Status = EFI_INVALID_PARAMETER;\r |
2375 | goto Done;\r | |
7936fb6a | 2376 | }\r |
2377 | \r | |
2378 | //\r | |
2379 | // Pop another expression from the expression stack\r | |
2380 | //\r | |
2381 | Status = PopExpression (&Data1);\r | |
2382 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2383 | goto Done;\r |
7936fb6a | 2384 | }\r |
2385 | if (Data1.Type > EFI_IFR_TYPE_DATE) {\r | |
2573712e LG |
2386 | Status = EFI_INVALID_PARAMETER;\r |
2387 | goto Done;\r | |
7936fb6a | 2388 | }\r |
2389 | \r | |
2390 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
2391 | \r | |
2392 | switch (OpCode->Operand) {\r | |
2393 | case EFI_IFR_ADD_OP:\r | |
2394 | Value->Value.u64 = Data1.Value.u64 + Data2.Value.u64;\r | |
2395 | break;\r | |
2396 | \r | |
2397 | case EFI_IFR_SUBTRACT_OP:\r | |
2398 | Value->Value.u64 = Data1.Value.u64 - Data2.Value.u64;\r | |
2399 | break;\r | |
2400 | \r | |
2401 | case EFI_IFR_MULTIPLY_OP:\r | |
2402 | Value->Value.u64 = MultU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);\r | |
2403 | break;\r | |
2404 | \r | |
2405 | case EFI_IFR_DIVIDE_OP:\r | |
2406 | Value->Value.u64 = DivU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);\r | |
2407 | break;\r | |
2408 | \r | |
2409 | case EFI_IFR_MODULO_OP:\r | |
2410 | DivU64x32Remainder (Data1.Value.u64, (UINT32) Data2.Value.u64, &TempValue);\r | |
2411 | Value->Value.u64 = TempValue;\r | |
2412 | break;\r | |
2413 | \r | |
2414 | case EFI_IFR_BITWISE_AND_OP:\r | |
2415 | Value->Value.u64 = Data1.Value.u64 & Data2.Value.u64;\r | |
2416 | break;\r | |
2417 | \r | |
2418 | case EFI_IFR_BITWISE_OR_OP:\r | |
2419 | Value->Value.u64 = Data1.Value.u64 | Data2.Value.u64;\r | |
2420 | break;\r | |
2421 | \r | |
2422 | case EFI_IFR_SHIFT_LEFT_OP:\r | |
2423 | Value->Value.u64 = LShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);\r | |
2424 | break;\r | |
2425 | \r | |
2426 | case EFI_IFR_SHIFT_RIGHT_OP:\r | |
2427 | Value->Value.u64 = RShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);\r | |
2428 | break;\r | |
2429 | \r | |
2430 | default:\r | |
2431 | break;\r | |
2432 | }\r | |
2433 | break;\r | |
2434 | \r | |
2435 | case EFI_IFR_AND_OP:\r | |
2436 | case EFI_IFR_OR_OP:\r | |
2437 | //\r | |
2438 | // Two Boolean operator\r | |
2439 | //\r | |
2440 | Status = PopExpression (&Data2);\r | |
2441 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2442 | goto Done;\r |
7936fb6a | 2443 | }\r |
2444 | if (Data2.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
2573712e LG |
2445 | Status = EFI_INVALID_PARAMETER;\r |
2446 | goto Done;\r | |
7936fb6a | 2447 | }\r |
2448 | \r | |
2449 | //\r | |
2450 | // Pop another expression from the expression stack\r | |
2451 | //\r | |
2452 | Status = PopExpression (&Data1);\r | |
2453 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2454 | goto Done;\r |
7936fb6a | 2455 | }\r |
2456 | if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
2573712e LG |
2457 | Status = EFI_INVALID_PARAMETER;\r |
2458 | goto Done;\r | |
7936fb6a | 2459 | }\r |
2460 | \r | |
2461 | if (OpCode->Operand == EFI_IFR_AND_OP) {\r | |
2462 | Value->Value.b = (BOOLEAN) (Data1.Value.b && Data2.Value.b);\r | |
2463 | } else {\r | |
2464 | Value->Value.b = (BOOLEAN) (Data1.Value.b || Data2.Value.b);\r | |
2465 | }\r | |
2466 | break;\r | |
2467 | \r | |
2468 | case EFI_IFR_EQUAL_OP:\r | |
2469 | case EFI_IFR_NOT_EQUAL_OP:\r | |
2470 | case EFI_IFR_GREATER_EQUAL_OP:\r | |
2471 | case EFI_IFR_GREATER_THAN_OP:\r | |
2472 | case EFI_IFR_LESS_EQUAL_OP:\r | |
2473 | case EFI_IFR_LESS_THAN_OP:\r | |
2474 | //\r | |
2475 | // Compare two integer, string, boolean or date/time\r | |
2476 | //\r | |
2477 | Status = PopExpression (&Data2);\r | |
2478 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2479 | goto Done;\r |
7936fb6a | 2480 | }\r |
901ba0e7 ED |
2481 | if (Data2.Type > EFI_IFR_TYPE_BOOLEAN && \r |
2482 | Data2.Type != EFI_IFR_TYPE_STRING && \r | |
2483 | Data2.Type != EFI_IFR_TYPE_BUFFER) {\r | |
2573712e LG |
2484 | Status = EFI_INVALID_PARAMETER;\r |
2485 | goto Done;\r | |
7936fb6a | 2486 | }\r |
2487 | \r | |
2488 | //\r | |
2489 | // Pop another expression from the expression stack\r | |
2490 | //\r | |
2491 | Status = PopExpression (&Data1);\r | |
2492 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2493 | goto Done;\r |
7936fb6a | 2494 | }\r |
2495 | \r | |
2496 | Result = CompareHiiValue (&Data1, &Data2, FormSet->HiiHandle);\r | |
901ba0e7 ED |
2497 | if (Data1.Type == EFI_IFR_TYPE_BUFFER) {\r |
2498 | FreePool (Data1.Buffer);\r | |
2499 | FreePool (Data2.Buffer);\r | |
2500 | }\r | |
2501 | \r | |
7936fb6a | 2502 | if (Result == EFI_INVALID_PARAMETER) {\r |
2573712e LG |
2503 | Status = EFI_INVALID_PARAMETER;\r |
2504 | goto Done;\r | |
7936fb6a | 2505 | }\r |
2506 | \r | |
2507 | switch (OpCode->Operand) {\r | |
2508 | case EFI_IFR_EQUAL_OP:\r | |
2509 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
2510 | break;\r | |
2511 | \r | |
2512 | case EFI_IFR_NOT_EQUAL_OP:\r | |
7b9b2b92 | 2513 | Value->Value.b = (BOOLEAN) ((Result != 0) ? TRUE : FALSE);\r |
7936fb6a | 2514 | break;\r |
2515 | \r | |
2516 | case EFI_IFR_GREATER_EQUAL_OP:\r | |
2517 | Value->Value.b = (BOOLEAN) ((Result >= 0) ? TRUE : FALSE);\r | |
2518 | break;\r | |
2519 | \r | |
2520 | case EFI_IFR_GREATER_THAN_OP:\r | |
2521 | Value->Value.b = (BOOLEAN) ((Result > 0) ? TRUE : FALSE);\r | |
2522 | break;\r | |
2523 | \r | |
2524 | case EFI_IFR_LESS_EQUAL_OP:\r | |
2525 | Value->Value.b = (BOOLEAN) ((Result <= 0) ? TRUE : FALSE);\r | |
2526 | break;\r | |
2527 | \r | |
2528 | case EFI_IFR_LESS_THAN_OP:\r | |
2529 | Value->Value.b = (BOOLEAN) ((Result < 0) ? TRUE : FALSE);\r | |
2530 | break;\r | |
2531 | \r | |
2532 | default:\r | |
2533 | break;\r | |
2534 | }\r | |
2535 | break;\r | |
2536 | \r | |
2537 | case EFI_IFR_MATCH_OP:\r | |
20258293 ED |
2538 | Status = InitializeUnicodeCollationProtocol ();\r |
2539 | if (EFI_ERROR (Status)) {\r | |
2540 | goto Done;\r | |
2541 | }\r | |
2542 | \r | |
7936fb6a | 2543 | Status = IfrMatch (FormSet, Value);\r |
2544 | break;\r | |
2545 | \r | |
2546 | case EFI_IFR_CATENATE_OP:\r | |
2547 | Status = IfrCatenate (FormSet, Value);\r | |
2548 | break;\r | |
2549 | \r | |
2550 | //\r | |
2551 | // ternary-op\r | |
2552 | //\r | |
2553 | case EFI_IFR_CONDITIONAL_OP:\r | |
2554 | //\r | |
2555 | // Pop third expression from the expression stack\r | |
2556 | //\r | |
2557 | Status = PopExpression (&Data3);\r | |
2558 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2559 | goto Done;\r |
7936fb6a | 2560 | }\r |
2561 | \r | |
2562 | //\r | |
2563 | // Pop second expression from the expression stack\r | |
2564 | //\r | |
2565 | Status = PopExpression (&Data2);\r | |
2566 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2567 | goto Done;\r |
7936fb6a | 2568 | }\r |
2569 | \r | |
2570 | //\r | |
2571 | // Pop first expression from the expression stack\r | |
2572 | //\r | |
2573 | Status = PopExpression (&Data1);\r | |
2574 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2575 | goto Done;\r |
7936fb6a | 2576 | }\r |
2577 | if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
2573712e LG |
2578 | Status = EFI_INVALID_PARAMETER;\r |
2579 | goto Done;\r | |
7936fb6a | 2580 | }\r |
2581 | \r | |
2582 | if (Data1.Value.b) {\r | |
2583 | Value = &Data3;\r | |
2584 | } else {\r | |
2585 | Value = &Data2;\r | |
2586 | }\r | |
2587 | break;\r | |
2588 | \r | |
2589 | case EFI_IFR_FIND_OP:\r | |
2590 | Status = IfrFind (FormSet, OpCode->Format, Value);\r | |
2591 | break;\r | |
2592 | \r | |
2593 | case EFI_IFR_MID_OP:\r | |
2594 | Status = IfrMid (FormSet, Value);\r | |
2595 | break;\r | |
2596 | \r | |
2597 | case EFI_IFR_TOKEN_OP:\r | |
2598 | Status = IfrToken (FormSet, Value);\r | |
2599 | break;\r | |
2600 | \r | |
2601 | case EFI_IFR_SPAN_OP:\r | |
2602 | Status = IfrSpan (FormSet, OpCode->Flags, Value);\r | |
2603 | break;\r | |
2604 | \r | |
2573712e LG |
2605 | case EFI_IFR_MAP_OP:\r |
2606 | //\r | |
2607 | // Pop the check value\r | |
2608 | //\r | |
2609 | Status = PopExpression (&Data1);\r | |
2610 | if (EFI_ERROR (Status)) {\r | |
2611 | goto Done;\r | |
2612 | }\r | |
2613 | //\r | |
2614 | // Check MapExpression list is valid.\r | |
2615 | //\r | |
2616 | if (OpCode->MapExpressionList.ForwardLink == NULL) {\r | |
2617 | Status = EFI_INVALID_PARAMETER;\r | |
2618 | goto Done;\r | |
2619 | }\r | |
2620 | //\r | |
2621 | // Go through map expression list.\r | |
2622 | //\r | |
2623 | SubExpressionLink = GetFirstNode(&OpCode->MapExpressionList);\r | |
2624 | while (!IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {\r | |
2625 | SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink);\r | |
2626 | //\r | |
2627 | // Evaluate the first expression in this pair.\r | |
2628 | //\r | |
2629 | Status = EvaluateExpression (FormSet, Form, SubExpression);\r | |
2630 | if (EFI_ERROR (Status)) {\r | |
2631 | goto Done;\r | |
2632 | }\r | |
2633 | //\r | |
2634 | // Compare the expression value with current value\r | |
2635 | //\r | |
2636 | if (CompareHiiValue (&Data1, &SubExpression->Result, NULL) == 0) {\r | |
2637 | //\r | |
2638 | // Try get the map value.\r | |
2639 | //\r | |
2640 | SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);\r | |
2641 | if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {\r | |
2642 | Status = EFI_INVALID_PARAMETER;\r | |
2643 | goto Done;\r | |
2644 | }\r | |
2645 | SubExpression = FORM_EXPRESSION_FROM_LINK (SubExpressionLink);\r | |
2646 | Status = EvaluateExpression (FormSet, Form, SubExpression);\r | |
2647 | if (EFI_ERROR (Status)) {\r | |
2648 | goto Done;\r | |
2649 | }\r | |
2650 | Value = &SubExpression->Result;\r | |
2651 | break;\r | |
2652 | }\r | |
2653 | //\r | |
2654 | // Skip the second expression on this pair.\r | |
2655 | //\r | |
2656 | SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);\r | |
2657 | if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {\r | |
2658 | Status = EFI_INVALID_PARAMETER;\r | |
2659 | goto Done;\r | |
2660 | }\r | |
2661 | //\r | |
2662 | // Goto the first expression on next pair.\r | |
2663 | //\r | |
2664 | SubExpressionLink = GetNextNode (&OpCode->MapExpressionList, SubExpressionLink);\r | |
2665 | }\r | |
2666 | \r | |
2667 | //\r | |
2668 | // No map value is found.\r | |
2669 | //\r | |
2670 | if (IsNull (&OpCode->MapExpressionList, SubExpressionLink)) {\r | |
2671 | Value->Type = EFI_IFR_TYPE_UNDEFINED;\r | |
2672 | Value->Value.u8 = 0;\r | |
2673 | }\r | |
2674 | break;\r | |
2675 | \r | |
7936fb6a | 2676 | default:\r |
2677 | break;\r | |
2678 | }\r | |
2679 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2680 | goto Done;\r |
7936fb6a | 2681 | }\r |
2682 | \r | |
2683 | Status = PushExpression (Value);\r | |
2684 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2685 | goto Done;\r |
7936fb6a | 2686 | }\r |
2687 | }\r | |
2688 | \r | |
2689 | //\r | |
2690 | // Pop the final result from expression stack\r | |
2691 | //\r | |
2692 | Value = &Data1;\r | |
2693 | Status = PopExpression (Value);\r | |
2694 | if (EFI_ERROR (Status)) {\r | |
2573712e | 2695 | goto Done;\r |
7936fb6a | 2696 | }\r |
2697 | \r | |
2698 | //\r | |
2699 | // After evaluating an expression, there should be only one value left on the expression stack\r | |
2700 | //\r | |
2701 | if (PopExpression (Value) != EFI_ACCESS_DENIED) {\r | |
2573712e | 2702 | Status = EFI_INVALID_PARAMETER;\r |
7936fb6a | 2703 | }\r |
2704 | \r | |
2573712e LG |
2705 | Done:\r |
2706 | RestoreExpressionEvaluationStackOffset (StackOffset);\r | |
2707 | if (!EFI_ERROR (Status)) {\r | |
2708 | CopyMem (&Expression->Result, Value, sizeof (EFI_HII_VALUE));\r | |
2709 | }\r | |
7936fb6a | 2710 | \r |
2573712e | 2711 | return Status;\r |
7936fb6a | 2712 | }\r |