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7936fb6a | 1 | /** @file\r |
2 | Utility functions for expression evaluation.\r | |
3 | \r | |
4 | Copyright (c) 2007, Intel Corporation\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "Ui.h"\r | |
16 | #include "Setup.h"\r | |
17 | \r | |
18 | //\r | |
19 | // Global stack used to evaluate boolean expresions\r | |
20 | //\r | |
21 | EFI_HII_VALUE *mOpCodeScopeStack = NULL;\r | |
22 | EFI_HII_VALUE *mOpCodeScopeStackEnd = NULL;\r | |
23 | EFI_HII_VALUE *mOpCodeScopeStackPointer = NULL;\r | |
24 | \r | |
25 | EFI_HII_VALUE *mExpressionEvaluationStack = NULL;\r | |
26 | EFI_HII_VALUE *mExpressionEvaluationStackEnd = NULL;\r | |
27 | EFI_HII_VALUE *mExpressionEvaluationStackPointer = NULL;\r | |
28 | \r | |
29 | //\r | |
30 | // Unicode collation protocol interface\r | |
31 | //\r | |
32 | EFI_UNICODE_COLLATION_PROTOCOL *mUnicodeCollation = NULL;\r | |
33 | \r | |
34 | \r | |
35 | /**\r | |
36 | Grow size of the stack.\r | |
37 | \r | |
38 | This is an internal function.\r | |
39 | \r | |
40 | @param Stack On input: old stack; On output: new stack\r | |
41 | @param StackPtr On input: old stack pointer; On output: new stack\r | |
42 | pointer\r | |
43 | @param StackEnd On input: old stack end; On output: new stack end\r | |
44 | \r | |
45 | @retval EFI_SUCCESS Grow stack success.\r | |
46 | @retval EFI_OUT_OF_RESOURCES No enough memory for stack space.\r | |
47 | \r | |
48 | **/\r | |
49 | EFI_STATUS\r | |
50 | GrowStack (\r | |
51 | IN OUT EFI_HII_VALUE **Stack,\r | |
52 | IN OUT EFI_HII_VALUE **StackPtr,\r | |
53 | IN OUT EFI_HII_VALUE **StackEnd\r | |
54 | )\r | |
55 | {\r | |
56 | UINTN Size;\r | |
57 | EFI_HII_VALUE *NewStack;\r | |
58 | \r | |
59 | Size = EXPRESSION_STACK_SIZE_INCREMENT;\r | |
60 | if (*StackPtr != NULL) {\r | |
61 | Size = Size + (*StackEnd - *Stack);\r | |
62 | }\r | |
63 | \r | |
64 | NewStack = AllocatePool (Size * sizeof (EFI_HII_VALUE));\r | |
65 | if (NewStack == NULL) {\r | |
66 | return EFI_OUT_OF_RESOURCES;\r | |
67 | }\r | |
68 | \r | |
69 | if (*StackPtr != NULL) {\r | |
70 | //\r | |
71 | // Copy from Old Stack to the New Stack\r | |
72 | //\r | |
73 | CopyMem (\r | |
74 | NewStack,\r | |
75 | *Stack,\r | |
76 | (*StackEnd - *Stack) * sizeof (EFI_HII_VALUE)\r | |
77 | );\r | |
78 | \r | |
79 | //\r | |
80 | // Free The Old Stack\r | |
81 | //\r | |
82 | gBS->FreePool (*Stack);\r | |
83 | }\r | |
84 | \r | |
85 | //\r | |
86 | // Make the Stack pointer point to the old data in the new stack\r | |
87 | //\r | |
88 | *StackPtr = NewStack + (*StackPtr - *Stack);\r | |
89 | *Stack = NewStack;\r | |
90 | *StackEnd = NewStack + Size;\r | |
91 | \r | |
92 | return EFI_SUCCESS;\r | |
93 | }\r | |
94 | \r | |
95 | \r | |
96 | /**\r | |
97 | Push an element onto the Boolean Stack.\r | |
98 | \r | |
99 | @param Stack On input: old stack; On output: new stack\r | |
100 | @param StackPtr On input: old stack pointer; On output: new stack\r | |
101 | pointer\r | |
102 | @param StackEnd On input: old stack end; On output: new stack end\r | |
103 | @param Data Data to push.\r | |
104 | \r | |
105 | @retval EFI_SUCCESS Push stack success.\r | |
106 | \r | |
107 | **/\r | |
108 | EFI_STATUS\r | |
109 | PushStack (\r | |
110 | IN OUT EFI_HII_VALUE **Stack,\r | |
111 | IN OUT EFI_HII_VALUE **StackPtr,\r | |
112 | IN OUT EFI_HII_VALUE **StackEnd,\r | |
113 | IN EFI_HII_VALUE *Data\r | |
114 | )\r | |
115 | {\r | |
116 | EFI_STATUS Status;\r | |
117 | \r | |
118 | //\r | |
119 | // Check for a stack overflow condition\r | |
120 | //\r | |
121 | if (*StackPtr >= *StackEnd) {\r | |
122 | //\r | |
123 | // Grow the stack\r | |
124 | //\r | |
125 | Status = GrowStack (Stack, StackPtr, StackEnd);\r | |
126 | if (EFI_ERROR (Status)) {\r | |
127 | return Status;\r | |
128 | }\r | |
129 | }\r | |
130 | \r | |
131 | //\r | |
132 | // Push the item onto the stack\r | |
133 | //\r | |
134 | CopyMem (*StackPtr, Data, sizeof (EFI_HII_VALUE));\r | |
135 | *StackPtr = *StackPtr + 1;\r | |
136 | \r | |
137 | return EFI_SUCCESS;\r | |
138 | }\r | |
139 | \r | |
140 | \r | |
141 | /**\r | |
142 | Pop an element from the stack.\r | |
143 | \r | |
144 | @param Stack On input: old stack; On output: new stack\r | |
145 | @param StackPtr On input: old stack pointer; On output: new stack\r | |
146 | pointer\r | |
147 | @param StackEnd On input: old stack end; On output: new stack end\r | |
148 | @param Data Data to pop.\r | |
149 | \r | |
150 | @retval EFI_SUCCESS The value was popped onto the stack.\r | |
151 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
152 | \r | |
153 | **/\r | |
154 | EFI_STATUS\r | |
155 | PopStack (\r | |
156 | IN OUT EFI_HII_VALUE **Stack,\r | |
157 | IN OUT EFI_HII_VALUE **StackPtr,\r | |
158 | IN OUT EFI_HII_VALUE **StackEnd,\r | |
159 | OUT EFI_HII_VALUE *Data\r | |
160 | )\r | |
161 | {\r | |
162 | //\r | |
163 | // Check for a stack underflow condition\r | |
164 | //\r | |
165 | if (*StackPtr == *Stack) {\r | |
166 | return EFI_ACCESS_DENIED;\r | |
167 | }\r | |
168 | \r | |
169 | //\r | |
170 | // Pop the item off the stack\r | |
171 | //\r | |
172 | *StackPtr = *StackPtr - 1;\r | |
173 | CopyMem (Data, *StackPtr, sizeof (EFI_HII_VALUE));\r | |
174 | return EFI_SUCCESS;\r | |
175 | }\r | |
176 | \r | |
177 | \r | |
178 | /**\r | |
179 | Reset stack pointer to begin of the stack.\r | |
180 | \r | |
181 | **/\r | |
182 | VOID\r | |
183 | ResetScopeStack (\r | |
184 | VOID\r | |
185 | )\r | |
186 | {\r | |
187 | mOpCodeScopeStackPointer = mOpCodeScopeStack;\r | |
188 | }\r | |
189 | \r | |
190 | \r | |
191 | /**\r | |
192 | Push an Operand onto the Stack\r | |
193 | \r | |
194 | @param Operand Operand to push.\r | |
195 | \r | |
196 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
197 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
198 | stack.\r | |
199 | \r | |
200 | **/\r | |
201 | EFI_STATUS\r | |
202 | PushScope (\r | |
203 | IN UINT8 Operand\r | |
204 | )\r | |
205 | {\r | |
206 | EFI_HII_VALUE Data;\r | |
207 | \r | |
208 | Data.Type = EFI_IFR_TYPE_NUM_SIZE_8;\r | |
209 | Data.Value.u8 = Operand;\r | |
210 | \r | |
211 | return PushStack (\r | |
212 | &mOpCodeScopeStack,\r | |
213 | &mOpCodeScopeStackPointer,\r | |
214 | &mOpCodeScopeStackEnd,\r | |
215 | &Data\r | |
216 | );\r | |
217 | }\r | |
218 | \r | |
219 | \r | |
220 | /**\r | |
221 | Pop an Operand from the Stack\r | |
222 | \r | |
223 | @param Operand Operand to pop.\r | |
224 | \r | |
225 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
226 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
227 | stack.\r | |
228 | \r | |
229 | **/\r | |
230 | EFI_STATUS\r | |
231 | PopScope (\r | |
232 | OUT UINT8 *Operand\r | |
233 | )\r | |
234 | {\r | |
235 | EFI_STATUS Status;\r | |
236 | EFI_HII_VALUE Data;\r | |
237 | \r | |
238 | Status = PopStack (\r | |
239 | &mOpCodeScopeStack,\r | |
240 | &mOpCodeScopeStackPointer,\r | |
241 | &mOpCodeScopeStackEnd,\r | |
242 | &Data\r | |
243 | );\r | |
244 | \r | |
245 | *Operand = Data.Value.u8;\r | |
246 | \r | |
247 | return Status;\r | |
248 | }\r | |
249 | \r | |
250 | \r | |
251 | /**\r | |
252 | Reset stack pointer to begin of the stack.\r | |
253 | \r | |
254 | **/\r | |
255 | VOID\r | |
256 | ResetExpressionStack (\r | |
257 | VOID\r | |
258 | )\r | |
259 | {\r | |
260 | mExpressionEvaluationStackPointer = mExpressionEvaluationStack;\r | |
261 | }\r | |
262 | \r | |
263 | \r | |
264 | /**\r | |
265 | Push an Expression value onto the Stack\r | |
266 | \r | |
267 | @param Value Expression value to push.\r | |
268 | \r | |
269 | @retval EFI_SUCCESS The value was pushed onto the stack.\r | |
270 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
271 | stack.\r | |
272 | \r | |
273 | **/\r | |
274 | EFI_STATUS\r | |
275 | PushExpression (\r | |
276 | IN EFI_HII_VALUE *Value\r | |
277 | )\r | |
278 | {\r | |
279 | return PushStack (\r | |
280 | &mExpressionEvaluationStack,\r | |
281 | &mExpressionEvaluationStackPointer,\r | |
282 | &mExpressionEvaluationStackEnd,\r | |
283 | Value\r | |
284 | );\r | |
285 | }\r | |
286 | \r | |
287 | \r | |
288 | /**\r | |
289 | Pop an Expression value from the stack.\r | |
290 | \r | |
291 | @param Value Expression value to pop.\r | |
292 | \r | |
293 | @retval EFI_SUCCESS The value was popped onto the stack.\r | |
294 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
295 | \r | |
296 | **/\r | |
297 | EFI_STATUS\r | |
298 | PopExpression (\r | |
299 | OUT EFI_HII_VALUE *Value\r | |
300 | )\r | |
301 | {\r | |
302 | return PopStack (\r | |
303 | &mExpressionEvaluationStack,\r | |
304 | &mExpressionEvaluationStackPointer,\r | |
305 | &mExpressionEvaluationStackEnd,\r | |
306 | Value\r | |
307 | );\r | |
308 | }\r | |
309 | \r | |
310 | \r | |
311 | /**\r | |
312 | Get Form given its FormId.\r | |
313 | \r | |
314 | @param FormSet The formset which contains this form.\r | |
315 | @param FormId Id of this form.\r | |
316 | \r | |
317 | @retval Pointer The form.\r | |
318 | @retval NULL Specified Form is not found in the formset.\r | |
319 | \r | |
320 | **/\r | |
321 | FORM_BROWSER_FORM *\r | |
322 | IdToForm (\r | |
323 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
324 | IN UINT16 FormId\r | |
325 | )\r | |
326 | {\r | |
327 | LIST_ENTRY *Link;\r | |
328 | FORM_BROWSER_FORM *Form;\r | |
329 | \r | |
330 | Link = GetFirstNode (&FormSet->FormListHead);\r | |
331 | while (!IsNull (&FormSet->FormListHead, Link)) {\r | |
332 | Form = FORM_BROWSER_FORM_FROM_LINK (Link);\r | |
333 | \r | |
334 | if (Form->FormId == FormId) {\r | |
335 | return Form;\r | |
336 | }\r | |
337 | \r | |
338 | Link = GetNextNode (&FormSet->FormListHead, Link);\r | |
339 | }\r | |
340 | \r | |
341 | return NULL;\r | |
342 | }\r | |
343 | \r | |
344 | \r | |
345 | /**\r | |
346 | Search a Question in Form scope using its QuestionId.\r | |
347 | \r | |
348 | @param Form The form which contains this Question.\r | |
349 | @param QuestionId Id of this Question.\r | |
350 | \r | |
351 | @retval Pointer The Question.\r | |
352 | @retval NULL Specified Question not found in the form.\r | |
353 | \r | |
354 | **/\r | |
355 | FORM_BROWSER_STATEMENT *\r | |
356 | IdToQuestion2 (\r | |
357 | IN FORM_BROWSER_FORM *Form,\r | |
358 | IN UINT16 QuestionId\r | |
359 | )\r | |
360 | {\r | |
361 | LIST_ENTRY *Link;\r | |
362 | FORM_BROWSER_STATEMENT *Question;\r | |
363 | \r | |
364 | if (QuestionId == 0) {\r | |
365 | //\r | |
366 | // The value of zero is reserved\r | |
367 | //\r | |
368 | return NULL;\r | |
369 | }\r | |
370 | \r | |
371 | Link = GetFirstNode (&Form->StatementListHead);\r | |
372 | while (!IsNull (&Form->StatementListHead, Link)) {\r | |
373 | Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);\r | |
374 | \r | |
375 | if (Question->QuestionId == QuestionId) {\r | |
376 | return Question;\r | |
377 | }\r | |
378 | \r | |
379 | Link = GetNextNode (&Form->StatementListHead, Link);\r | |
380 | }\r | |
381 | \r | |
382 | return NULL;\r | |
383 | }\r | |
384 | \r | |
385 | \r | |
386 | /**\r | |
387 | Search a Question in Formset scope using its QuestionId.\r | |
388 | \r | |
389 | @param FormSet The formset which contains this form.\r | |
390 | @param Form The form which contains this Question.\r | |
391 | @param QuestionId Id of this Question.\r | |
392 | \r | |
393 | @retval Pointer The Question.\r | |
394 | @retval NULL Specified Question not found in the form.\r | |
395 | \r | |
396 | **/\r | |
397 | FORM_BROWSER_STATEMENT *\r | |
398 | IdToQuestion (\r | |
399 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
400 | IN FORM_BROWSER_FORM *Form,\r | |
401 | IN UINT16 QuestionId\r | |
402 | )\r | |
403 | {\r | |
404 | LIST_ENTRY *Link;\r | |
405 | FORM_BROWSER_STATEMENT *Question;\r | |
406 | \r | |
407 | //\r | |
408 | // Search in the form scope first\r | |
409 | //\r | |
410 | Question = IdToQuestion2 (Form, QuestionId);\r | |
411 | if (Question != NULL) {\r | |
412 | return Question;\r | |
413 | }\r | |
414 | \r | |
415 | //\r | |
416 | // Search in the formset scope\r | |
417 | //\r | |
418 | Link = GetFirstNode (&FormSet->FormListHead);\r | |
419 | while (!IsNull (&FormSet->FormListHead, Link)) {\r | |
420 | Form = FORM_BROWSER_FORM_FROM_LINK (Link);\r | |
421 | \r | |
422 | Question = IdToQuestion2 (Form, QuestionId);\r | |
423 | if (Question != NULL) {\r | |
424 | return Question;\r | |
425 | }\r | |
426 | \r | |
427 | Link = GetNextNode (&FormSet->FormListHead, Link);\r | |
428 | }\r | |
429 | \r | |
430 | return NULL;\r | |
431 | }\r | |
432 | \r | |
433 | \r | |
434 | /**\r | |
435 | Get Expression given its RuleId.\r | |
436 | \r | |
437 | @param Form The form which contains this Expression.\r | |
438 | @param RuleId Id of this Expression.\r | |
439 | \r | |
440 | @retval Pointer The Expression.\r | |
441 | @retval NULL Specified Expression not found in the form.\r | |
442 | \r | |
443 | **/\r | |
444 | FORM_EXPRESSION *\r | |
445 | RuleIdToExpression (\r | |
446 | IN FORM_BROWSER_FORM *Form,\r | |
447 | IN UINT8 RuleId\r | |
448 | )\r | |
449 | {\r | |
450 | LIST_ENTRY *Link;\r | |
451 | FORM_EXPRESSION *Expression;\r | |
452 | \r | |
453 | Link = GetFirstNode (&Form->ExpressionListHead);\r | |
454 | while (!IsNull (&Form->ExpressionListHead, Link)) {\r | |
455 | Expression = FORM_EXPRESSION_FROM_LINK (Link);\r | |
456 | \r | |
457 | if (Expression->Type == EFI_HII_EXPRESSION_RULE && Expression->RuleId == RuleId) {\r | |
458 | return Expression;\r | |
459 | }\r | |
460 | \r | |
461 | Link = GetNextNode (&Form->ExpressionListHead, Link);\r | |
462 | }\r | |
463 | \r | |
464 | return NULL;\r | |
465 | }\r | |
466 | \r | |
467 | \r | |
468 | /**\r | |
469 | Locate the Unicode Collation Protocol interface for later use.\r | |
470 | \r | |
471 | @retval EFI_SUCCESS Protocol interface initialize success.\r | |
472 | @retval Other Protocol interface initialize failed.\r | |
473 | \r | |
474 | **/\r | |
475 | EFI_STATUS\r | |
476 | InitializeUnicodeCollationProtocol (\r | |
477 | VOID\r | |
478 | )\r | |
479 | {\r | |
480 | EFI_STATUS Status;\r | |
481 | \r | |
482 | if (mUnicodeCollation != NULL) {\r | |
483 | return EFI_SUCCESS;\r | |
484 | }\r | |
485 | \r | |
486 | //\r | |
487 | // BUGBUG: Proper impelmentation is to locate all Unicode Collation Protocol\r | |
488 | // instances first and then select one which support English language.\r | |
489 | // Current implementation just pick the first instance.\r | |
490 | //\r | |
491 | Status = gBS->LocateProtocol (\r | |
492 | &gEfiUnicodeCollation2ProtocolGuid,\r | |
493 | NULL,\r | |
494 | (VOID **) &mUnicodeCollation\r | |
495 | );\r | |
496 | return Status;\r | |
497 | }\r | |
498 | \r | |
499 | /**\r | |
500 | Convert the input Unicode character to upper.\r | |
501 | \r | |
502 | @param String Th Unicode character to be converted.\r | |
503 | \r | |
504 | **/\r | |
505 | VOID\r | |
506 | IfrStrToUpper (\r | |
507 | CHAR16 *String\r | |
508 | )\r | |
509 | {\r | |
510 | while (*String != 0) {\r | |
511 | if ((*String >= 'a') && (*String <= 'z')) {\r | |
512 | *String = (UINT16) ((*String) & ((UINT16) ~0x20));\r | |
513 | }\r | |
514 | String++;\r | |
515 | }\r | |
516 | }\r | |
517 | \r | |
518 | \r | |
519 | /**\r | |
520 | Evaluate opcode EFI_IFR_TO_STRING.\r | |
521 | \r | |
522 | @param FormSet Formset which contains this opcode.\r | |
523 | @param Format String format in EFI_IFR_TO_STRING.\r | |
524 | @param Result Evaluation result for this opcode.\r | |
525 | \r | |
526 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
527 | @retval Other Opcode evaluation failed.\r | |
528 | \r | |
529 | **/\r | |
530 | EFI_STATUS\r | |
531 | IfrToString (\r | |
532 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
533 | IN UINT8 Format,\r | |
534 | OUT EFI_HII_VALUE *Result\r | |
535 | )\r | |
536 | {\r | |
537 | EFI_STATUS Status;\r | |
538 | EFI_HII_VALUE Value;\r | |
539 | CHAR16 *String;\r | |
540 | CHAR16 *PrintFormat;\r | |
541 | CHAR16 Buffer[MAXIMUM_VALUE_CHARACTERS];\r | |
542 | UINTN BufferSize;\r | |
543 | \r | |
544 | Status = PopExpression (&Value);\r | |
545 | if (EFI_ERROR (Status)) {\r | |
546 | return Status;\r | |
547 | }\r | |
548 | \r | |
549 | switch (Value.Type) {\r | |
550 | case EFI_IFR_TYPE_NUM_SIZE_8:\r | |
551 | case EFI_IFR_TYPE_NUM_SIZE_16:\r | |
552 | case EFI_IFR_TYPE_NUM_SIZE_32:\r | |
553 | case EFI_IFR_TYPE_NUM_SIZE_64:\r | |
554 | BufferSize = MAXIMUM_VALUE_CHARACTERS * sizeof (CHAR16);\r | |
555 | switch (Format) {\r | |
556 | case EFI_IFR_STRING_UNSIGNED_DEC:\r | |
557 | case EFI_IFR_STRING_SIGNED_DEC:\r | |
558 | PrintFormat = L"%ld";\r | |
559 | break;\r | |
560 | \r | |
561 | case EFI_IFR_STRING_LOWERCASE_HEX:\r | |
562 | PrintFormat = L"%lx";\r | |
563 | break;\r | |
564 | \r | |
565 | case EFI_IFR_STRING_UPPERCASE_HEX:\r | |
566 | PrintFormat = L"%lX";\r | |
567 | break;\r | |
568 | \r | |
569 | default:\r | |
570 | return EFI_UNSUPPORTED;\r | |
571 | }\r | |
572 | UnicodeSPrint (Buffer, BufferSize, PrintFormat, Value.Value.u64);\r | |
573 | String = Buffer;\r | |
574 | break;\r | |
575 | \r | |
576 | case EFI_IFR_TYPE_STRING:\r | |
577 | CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));\r | |
578 | return EFI_SUCCESS;\r | |
579 | \r | |
580 | case EFI_IFR_TYPE_BOOLEAN:\r | |
581 | String = (Value.Value.b) ? L"True" : L"False";\r | |
582 | break;\r | |
583 | \r | |
584 | default:\r | |
585 | return EFI_UNSUPPORTED;\r | |
586 | }\r | |
587 | \r | |
588 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
589 | Result->Value.string = NewString (String, FormSet->HiiHandle);\r | |
590 | return EFI_SUCCESS;\r | |
591 | }\r | |
592 | \r | |
593 | \r | |
594 | /**\r | |
595 | Evaluate opcode EFI_IFR_TO_UINT.\r | |
596 | \r | |
597 | @param FormSet Formset which contains this opcode.\r | |
598 | @param Result Evaluation result for this opcode.\r | |
599 | \r | |
600 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
601 | @retval Other Opcode evaluation failed.\r | |
602 | \r | |
603 | **/\r | |
604 | EFI_STATUS\r | |
605 | IfrToUint (\r | |
606 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
607 | OUT EFI_HII_VALUE *Result\r | |
608 | )\r | |
609 | {\r | |
610 | EFI_STATUS Status;\r | |
611 | EFI_HII_VALUE Value;\r | |
612 | CHAR16 *String;\r | |
613 | CHAR16 *StringPtr;\r | |
614 | UINTN BufferSize;\r | |
615 | \r | |
616 | Status = PopExpression (&Value);\r | |
617 | if (EFI_ERROR (Status)) {\r | |
618 | return Status;\r | |
619 | }\r | |
620 | \r | |
621 | if (Value.Type >= EFI_IFR_TYPE_OTHER) {\r | |
622 | return EFI_UNSUPPORTED;\r | |
623 | }\r | |
624 | \r | |
625 | Status = EFI_SUCCESS;\r | |
626 | if (Value.Type == EFI_IFR_TYPE_STRING) {\r | |
627 | String = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
628 | if (String == NULL) {\r | |
629 | return EFI_NOT_FOUND;\r | |
630 | }\r | |
631 | \r | |
632 | IfrStrToUpper (String);\r | |
633 | StringPtr = StrStr (String, L"0X");\r | |
634 | if (StringPtr != NULL) {\r | |
635 | //\r | |
636 | // Hex string\r | |
637 | //\r | |
638 | BufferSize = sizeof (UINT64);\r | |
639 | Status = HexStringToBuf ((UINT8 *) &Result->Value.u64, &BufferSize, StringPtr + 2, NULL);\r | |
640 | } else {\r | |
641 | //\r | |
642 | // BUGBUG: Need handle decimal string\r | |
643 | //\r | |
644 | }\r | |
645 | gBS->FreePool (String);\r | |
646 | } else {\r | |
647 | CopyMem (Result, &Value, sizeof (EFI_HII_VALUE));\r | |
648 | }\r | |
649 | \r | |
650 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
651 | return Status;\r | |
652 | }\r | |
653 | \r | |
654 | \r | |
655 | /**\r | |
656 | Evaluate opcode EFI_IFR_CATENATE.\r | |
657 | \r | |
658 | @param FormSet Formset which contains this opcode.\r | |
659 | @param Result Evaluation result for this opcode.\r | |
660 | \r | |
661 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
662 | @retval Other Opcode evaluation failed.\r | |
663 | \r | |
664 | **/\r | |
665 | EFI_STATUS\r | |
666 | IfrCatenate (\r | |
667 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
668 | OUT EFI_HII_VALUE *Result\r | |
669 | )\r | |
670 | {\r | |
671 | EFI_STATUS Status;\r | |
672 | EFI_HII_VALUE Value;\r | |
673 | CHAR16 *String[2];\r | |
674 | UINTN Index;\r | |
675 | CHAR16 *StringPtr;\r | |
676 | UINTN Size;\r | |
677 | \r | |
678 | //\r | |
679 | // String[0] - The second string\r | |
680 | // String[1] - The first string\r | |
681 | //\r | |
682 | String[0] = NULL;\r | |
683 | String[1] = NULL;\r | |
684 | StringPtr = NULL;\r | |
685 | Status = EFI_SUCCESS;\r | |
686 | \r | |
687 | for (Index = 0; Index < 2; Index++) {\r | |
688 | Status = PopExpression (&Value);\r | |
689 | if (EFI_ERROR (Status)) {\r | |
690 | goto Done;\r | |
691 | }\r | |
692 | \r | |
693 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
694 | Status = EFI_UNSUPPORTED;\r | |
695 | goto Done;\r | |
696 | }\r | |
697 | \r | |
698 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
699 | if (String== NULL) {\r | |
700 | Status = EFI_NOT_FOUND;\r | |
701 | goto Done;\r | |
702 | }\r | |
703 | }\r | |
704 | \r | |
705 | Size = StrSize (String[0]);\r | |
706 | StringPtr= AllocatePool (StrSize (String[1]) + Size);\r | |
707 | ASSERT (StringPtr != NULL);\r | |
708 | StrCpy (StringPtr, String[1]);\r | |
709 | StrCat (StringPtr, String[0]);\r | |
710 | \r | |
711 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
712 | Result->Value.string = NewString (StringPtr, FormSet->HiiHandle);\r | |
713 | \r | |
714 | Done:\r | |
715 | SafeFreePool (String[0]);\r | |
716 | SafeFreePool (String[1]);\r | |
717 | SafeFreePool (StringPtr);\r | |
718 | \r | |
719 | return Status;\r | |
720 | }\r | |
721 | \r | |
722 | \r | |
723 | /**\r | |
724 | Evaluate opcode EFI_IFR_MATCH.\r | |
725 | \r | |
726 | @param FormSet Formset which contains this opcode.\r | |
727 | @param Result Evaluation result for this opcode.\r | |
728 | \r | |
729 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
730 | @retval Other Opcode evaluation failed.\r | |
731 | \r | |
732 | **/\r | |
733 | EFI_STATUS\r | |
734 | IfrMatch (\r | |
735 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
736 | OUT EFI_HII_VALUE *Result\r | |
737 | )\r | |
738 | {\r | |
739 | EFI_STATUS Status;\r | |
740 | EFI_HII_VALUE Value;\r | |
741 | CHAR16 *String[2];\r | |
742 | UINTN Index;\r | |
743 | \r | |
744 | //\r | |
745 | // String[0] - The string to search\r | |
746 | // String[1] - pattern\r | |
747 | //\r | |
748 | String[0] = NULL;\r | |
749 | String[1] = NULL;\r | |
750 | Status = EFI_SUCCESS;\r | |
751 | for (Index = 0; Index < 2; Index++) {\r | |
752 | Status = PopExpression (&Value);\r | |
753 | if (EFI_ERROR (Status)) {\r | |
754 | goto Done;\r | |
755 | }\r | |
756 | \r | |
757 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
758 | Status = EFI_UNSUPPORTED;\r | |
759 | goto Done;\r | |
760 | }\r | |
761 | \r | |
762 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
763 | if (String== NULL) {\r | |
764 | Status = EFI_NOT_FOUND;\r | |
765 | goto Done;\r | |
766 | }\r | |
767 | }\r | |
768 | \r | |
769 | Result->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
770 | Result->Value.b = mUnicodeCollation->MetaiMatch (mUnicodeCollation, String[0], String[1]);\r | |
771 | \r | |
772 | Done:\r | |
773 | SafeFreePool (String[0]);\r | |
774 | SafeFreePool (String[1]);\r | |
775 | \r | |
776 | return Status;\r | |
777 | }\r | |
778 | \r | |
779 | \r | |
780 | /**\r | |
781 | Evaluate opcode EFI_IFR_FIND.\r | |
782 | \r | |
783 | @param FormSet Formset which contains this opcode.\r | |
784 | @param Format Case sensitive or insensitive.\r | |
785 | @param Result Evaluation result for this opcode.\r | |
786 | \r | |
787 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
788 | @retval Other Opcode evaluation failed.\r | |
789 | \r | |
790 | **/\r | |
791 | EFI_STATUS\r | |
792 | IfrFind (\r | |
793 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
794 | IN UINT8 Format,\r | |
795 | OUT EFI_HII_VALUE *Result\r | |
796 | )\r | |
797 | {\r | |
798 | EFI_STATUS Status;\r | |
799 | EFI_HII_VALUE Value;\r | |
800 | CHAR16 *String[2];\r | |
801 | UINTN Base;\r | |
802 | CHAR16 *StringPtr;\r | |
803 | UINTN Index;\r | |
804 | \r | |
805 | if (Format > EFI_IFR_FF_CASE_INSENSITIVE) {\r | |
806 | return EFI_UNSUPPORTED;\r | |
807 | }\r | |
808 | \r | |
809 | Status = PopExpression (&Value);\r | |
810 | if (EFI_ERROR (Status)) {\r | |
811 | return Status;\r | |
812 | }\r | |
813 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
814 | return EFI_UNSUPPORTED;\r | |
815 | }\r | |
816 | Base = (UINTN) Value.Value.u64;\r | |
817 | \r | |
818 | //\r | |
819 | // String[0] - sub-string\r | |
820 | // String[1] - The string to search\r | |
821 | //\r | |
822 | String[0] = NULL;\r | |
823 | String[1] = NULL;\r | |
824 | for (Index = 0; Index < 2; Index++) {\r | |
825 | Status = PopExpression (&Value);\r | |
826 | if (EFI_ERROR (Status)) {\r | |
827 | goto Done;\r | |
828 | }\r | |
829 | \r | |
830 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
831 | Status = EFI_UNSUPPORTED;\r | |
832 | goto Done;\r | |
833 | }\r | |
834 | \r | |
835 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
836 | if (String== NULL) {\r | |
837 | Status = EFI_NOT_FOUND;\r | |
838 | goto Done;\r | |
839 | }\r | |
840 | \r | |
841 | if (Format == EFI_IFR_FF_CASE_INSENSITIVE) {\r | |
842 | //\r | |
843 | // Case insensitive, convert both string to upper case\r | |
844 | //\r | |
845 | IfrStrToUpper (String[Index]);\r | |
846 | }\r | |
847 | }\r | |
848 | \r | |
849 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
850 | if (Base >= StrLen (String[1])) {\r | |
851 | Result->Value.u64 = 0xFFFFFFFFFFFFFFFFULL;\r | |
852 | } else {\r | |
853 | StringPtr = StrStr (String[1] + Base, String[0]);\r | |
854 | Result->Value.u64 = (StringPtr == NULL) ? 0xFFFFFFFFFFFFFFFFULL : (StringPtr - String[1]);\r | |
855 | }\r | |
856 | \r | |
857 | Done:\r | |
858 | SafeFreePool (String[0]);\r | |
859 | SafeFreePool (String[1]);\r | |
860 | \r | |
861 | return Status;\r | |
862 | }\r | |
863 | \r | |
864 | \r | |
865 | /**\r | |
866 | Evaluate opcode EFI_IFR_MID.\r | |
867 | \r | |
868 | @param FormSet Formset which contains this opcode.\r | |
869 | @param Result Evaluation result for this opcode.\r | |
870 | \r | |
871 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
872 | @retval Other Opcode evaluation failed.\r | |
873 | \r | |
874 | **/\r | |
875 | EFI_STATUS\r | |
876 | IfrMid (\r | |
877 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
878 | OUT EFI_HII_VALUE *Result\r | |
879 | )\r | |
880 | {\r | |
881 | EFI_STATUS Status;\r | |
882 | EFI_HII_VALUE Value;\r | |
883 | CHAR16 *String;\r | |
884 | UINTN Base;\r | |
885 | UINTN Length;\r | |
886 | CHAR16 *SubString;\r | |
887 | \r | |
888 | Status = PopExpression (&Value);\r | |
889 | if (EFI_ERROR (Status)) {\r | |
890 | return Status;\r | |
891 | }\r | |
892 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
893 | return EFI_UNSUPPORTED;\r | |
894 | }\r | |
895 | Length = (UINTN) Value.Value.u64;\r | |
896 | \r | |
897 | Status = PopExpression (&Value);\r | |
898 | if (EFI_ERROR (Status)) {\r | |
899 | return Status;\r | |
900 | }\r | |
901 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
902 | return EFI_UNSUPPORTED;\r | |
903 | }\r | |
904 | Base = (UINTN) Value.Value.u64;\r | |
905 | \r | |
906 | Status = PopExpression (&Value);\r | |
907 | if (EFI_ERROR (Status)) {\r | |
908 | return Status;\r | |
909 | }\r | |
910 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
911 | return EFI_UNSUPPORTED;\r | |
912 | }\r | |
913 | String = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
914 | if (String == NULL) {\r | |
915 | return EFI_NOT_FOUND;\r | |
916 | }\r | |
917 | \r | |
918 | if (Length == 0 || Base >= StrLen (String)) {\r | |
919 | SubString = gEmptyString;\r | |
920 | } else {\r | |
921 | SubString = String + Base;\r | |
922 | if ((Base + Length) < StrLen (String)) {\r | |
923 | SubString[Length] = L'\0';\r | |
924 | }\r | |
925 | }\r | |
926 | \r | |
927 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
928 | Result->Value.string = NewString (SubString, FormSet->HiiHandle);\r | |
929 | \r | |
930 | gBS->FreePool (String);\r | |
931 | \r | |
932 | return Status;\r | |
933 | }\r | |
934 | \r | |
935 | \r | |
936 | /**\r | |
937 | Evaluate opcode EFI_IFR_TOKEN.\r | |
938 | \r | |
939 | @param FormSet Formset which contains this opcode.\r | |
940 | @param Result Evaluation result for this opcode.\r | |
941 | \r | |
942 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
943 | @retval Other Opcode evaluation failed.\r | |
944 | \r | |
945 | **/\r | |
946 | EFI_STATUS\r | |
947 | IfrToken (\r | |
948 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
949 | OUT EFI_HII_VALUE *Result\r | |
950 | )\r | |
951 | {\r | |
952 | EFI_STATUS Status;\r | |
953 | EFI_HII_VALUE Value;\r | |
954 | CHAR16 *String[2];\r | |
955 | UINTN Count;\r | |
956 | CHAR16 *Delimiter;\r | |
957 | CHAR16 *SubString;\r | |
958 | CHAR16 *StringPtr;\r | |
959 | UINTN Index;\r | |
960 | \r | |
961 | Status = PopExpression (&Value);\r | |
962 | if (EFI_ERROR (Status)) {\r | |
963 | return Status;\r | |
964 | }\r | |
965 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
966 | return EFI_UNSUPPORTED;\r | |
967 | }\r | |
968 | Count = (UINTN) Value.Value.u64;\r | |
969 | \r | |
970 | //\r | |
971 | // String[0] - Delimiter\r | |
972 | // String[1] - The string to search\r | |
973 | //\r | |
974 | String[0] = NULL;\r | |
975 | String[1] = NULL;\r | |
976 | for (Index = 0; Index < 2; Index++) {\r | |
977 | Status = PopExpression (&Value);\r | |
978 | if (EFI_ERROR (Status)) {\r | |
979 | goto Done;\r | |
980 | }\r | |
981 | \r | |
982 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
983 | Status = EFI_UNSUPPORTED;\r | |
984 | goto Done;\r | |
985 | }\r | |
986 | \r | |
987 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
988 | if (String== NULL) {\r | |
989 | Status = EFI_NOT_FOUND;\r | |
990 | goto Done;\r | |
991 | }\r | |
992 | }\r | |
993 | \r | |
994 | Delimiter = String[0];\r | |
995 | SubString = String[1];\r | |
996 | while (Count > 0) {\r | |
997 | SubString = StrStr (SubString, Delimiter);\r | |
998 | if (SubString != NULL) {\r | |
999 | //\r | |
1000 | // Skip over the delimiter\r | |
1001 | //\r | |
1002 | SubString = SubString + StrLen (Delimiter);\r | |
1003 | } else {\r | |
1004 | break;\r | |
1005 | }\r | |
1006 | Count--;\r | |
1007 | }\r | |
1008 | \r | |
1009 | if (SubString == NULL) {\r | |
1010 | //\r | |
1011 | // nth delimited sub-string not found, push an empty string\r | |
1012 | //\r | |
1013 | SubString = gEmptyString;\r | |
1014 | } else {\r | |
1015 | //\r | |
1016 | // Put a NULL terminator for nth delimited sub-string\r | |
1017 | //\r | |
1018 | StringPtr = StrStr (SubString, Delimiter);\r | |
1019 | if (StringPtr != NULL) {\r | |
1020 | *StringPtr = L'\0';\r | |
1021 | }\r | |
1022 | }\r | |
1023 | \r | |
1024 | Result->Type = EFI_IFR_TYPE_STRING;\r | |
1025 | Result->Value.string = NewString (SubString, FormSet->HiiHandle);\r | |
1026 | \r | |
1027 | Done:\r | |
1028 | SafeFreePool (String[0]);\r | |
1029 | SafeFreePool (String[1]);\r | |
1030 | \r | |
1031 | return Status;\r | |
1032 | }\r | |
1033 | \r | |
1034 | \r | |
1035 | /**\r | |
1036 | Evaluate opcode EFI_IFR_SPAN.\r | |
1037 | \r | |
1038 | @param FormSet Formset which contains this opcode.\r | |
1039 | @param Flags FIRST_MATCHING or FIRST_NON_MATCHING.\r | |
1040 | @param Result Evaluation result for this opcode.\r | |
1041 | \r | |
1042 | @retval EFI_SUCCESS Opcode evaluation success.\r | |
1043 | @retval Other Opcode evaluation failed.\r | |
1044 | \r | |
1045 | **/\r | |
1046 | EFI_STATUS\r | |
1047 | IfrSpan (\r | |
1048 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1049 | IN UINT8 Flags,\r | |
1050 | OUT EFI_HII_VALUE *Result\r | |
1051 | )\r | |
1052 | {\r | |
1053 | EFI_STATUS Status;\r | |
1054 | EFI_HII_VALUE Value;\r | |
1055 | CHAR16 *String[2];\r | |
1056 | CHAR16 *Charset;\r | |
1057 | UINTN Base;\r | |
1058 | UINTN Index;\r | |
1059 | CHAR16 *StringPtr;\r | |
1060 | BOOLEAN Found;\r | |
1061 | \r | |
1062 | Status = PopExpression (&Value);\r | |
1063 | if (EFI_ERROR (Status)) {\r | |
1064 | return Status;\r | |
1065 | }\r | |
1066 | if (Value.Type > EFI_IFR_TYPE_NUM_SIZE_64) {\r | |
1067 | return EFI_UNSUPPORTED;\r | |
1068 | }\r | |
1069 | Base = (UINTN) Value.Value.u64;\r | |
1070 | \r | |
1071 | //\r | |
1072 | // String[0] - Charset\r | |
1073 | // String[1] - The string to search\r | |
1074 | //\r | |
1075 | String[0] = NULL;\r | |
1076 | String[1] = NULL;\r | |
1077 | for (Index = 0; Index < 2; Index++) {\r | |
1078 | Status = PopExpression (&Value);\r | |
1079 | if (EFI_ERROR (Status)) {\r | |
1080 | goto Done;\r | |
1081 | }\r | |
1082 | \r | |
1083 | if (Value.Type != EFI_IFR_TYPE_STRING) {\r | |
1084 | Status = EFI_UNSUPPORTED;\r | |
1085 | goto Done;\r | |
1086 | }\r | |
1087 | \r | |
1088 | String[Index] = GetToken (Value.Value.string, FormSet->HiiHandle);\r | |
1089 | if (String== NULL) {\r | |
1090 | Status = EFI_NOT_FOUND;\r | |
1091 | goto Done;\r | |
1092 | }\r | |
1093 | }\r | |
1094 | \r | |
1095 | if (Base >= StrLen (String[1])) {\r | |
1096 | Status = EFI_UNSUPPORTED;\r | |
1097 | goto Done;\r | |
1098 | }\r | |
1099 | \r | |
1100 | Found = FALSE;\r | |
1101 | StringPtr = String[1] + Base;\r | |
1102 | Charset = String[0];\r | |
1103 | while (*StringPtr != 0 && !Found) {\r | |
1104 | Index = 0;\r | |
1105 | while (Charset[Index] != 0) {\r | |
1106 | if (*StringPtr >= Charset[Index] && *StringPtr <= Charset[Index + 1]) {\r | |
1107 | if (Flags == EFI_IFR_FLAGS_FIRST_MATCHING) {\r | |
1108 | Found = TRUE;\r | |
1109 | break;\r | |
1110 | }\r | |
1111 | } else {\r | |
1112 | if (Flags == EFI_IFR_FLAGS_FIRST_NON_MATCHING) {\r | |
1113 | Found = TRUE;\r | |
1114 | break;\r | |
1115 | }\r | |
1116 | }\r | |
1117 | //\r | |
1118 | // Skip characters pair representing low-end of a range and high-end of a range\r | |
1119 | //\r | |
1120 | Index += 2;\r | |
1121 | }\r | |
1122 | \r | |
1123 | if (!Found) {\r | |
1124 | StringPtr++;\r | |
1125 | }\r | |
1126 | }\r | |
1127 | \r | |
1128 | Result->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1129 | Result->Value.u64 = StringPtr - String[1];\r | |
1130 | \r | |
1131 | Done:\r | |
1132 | SafeFreePool (String[0]);\r | |
1133 | SafeFreePool (String[1]);\r | |
1134 | \r | |
1135 | return Status;\r | |
1136 | }\r | |
1137 | \r | |
1138 | \r | |
1139 | /**\r | |
1140 | Zero extend integer/boolean/date/time to UINT64 for comparing.\r | |
1141 | \r | |
1142 | @param Value HII Value to be converted.\r | |
1143 | \r | |
1144 | **/\r | |
1145 | VOID\r | |
1146 | ExtendValueToU64 (\r | |
1147 | IN EFI_HII_VALUE *Value\r | |
1148 | )\r | |
1149 | {\r | |
1150 | UINT64 Temp;\r | |
1151 | \r | |
1152 | Temp = 0;\r | |
1153 | switch (Value->Type) {\r | |
1154 | case EFI_IFR_TYPE_NUM_SIZE_8:\r | |
1155 | Temp = Value->Value.u8;\r | |
1156 | break;\r | |
1157 | \r | |
1158 | case EFI_IFR_TYPE_NUM_SIZE_16:\r | |
1159 | Temp = Value->Value.u16;\r | |
1160 | break;\r | |
1161 | \r | |
1162 | case EFI_IFR_TYPE_NUM_SIZE_32:\r | |
1163 | Temp = Value->Value.u32;\r | |
1164 | break;\r | |
1165 | \r | |
1166 | case EFI_IFR_TYPE_BOOLEAN:\r | |
1167 | Temp = Value->Value.b;\r | |
1168 | break;\r | |
1169 | \r | |
1170 | case EFI_IFR_TYPE_TIME:\r | |
1171 | Temp = Value->Value.u32 & 0xffffff;\r | |
1172 | break;\r | |
1173 | \r | |
1174 | case EFI_IFR_TYPE_DATE:\r | |
1175 | Temp = Value->Value.u32;\r | |
1176 | break;\r | |
1177 | \r | |
1178 | default:\r | |
1179 | return;\r | |
1180 | }\r | |
1181 | \r | |
1182 | Value->Value.u64 = Temp;\r | |
1183 | }\r | |
1184 | \r | |
1185 | \r | |
1186 | /**\r | |
1187 | Compare two Hii value.\r | |
1188 | \r | |
1189 | @param Value1 Expression value to compare on left-hand.\r | |
1190 | @param Value2 Expression value to compare on right-hand.\r | |
1191 | @param HiiHandle Only required for string compare.\r | |
1192 | \r | |
1193 | @retval EFI_INVALID_PARAMETER Could not perform comparation on two values.\r | |
1194 | @retval 0 Two operators equeal.\r | |
1195 | @return Positive value if Value1 is greater than Value2.\r | |
1196 | @retval Negative value if Value1 is less than Value2.\r | |
1197 | \r | |
1198 | **/\r | |
1199 | INTN\r | |
1200 | CompareHiiValue (\r | |
1201 | IN EFI_HII_VALUE *Value1,\r | |
1202 | IN EFI_HII_VALUE *Value2,\r | |
1203 | IN EFI_HII_HANDLE HiiHandle OPTIONAL\r | |
1204 | )\r | |
1205 | {\r | |
1206 | INTN Result;\r | |
1207 | INT64 Temp64;\r | |
1208 | CHAR16 *Str1;\r | |
1209 | CHAR16 *Str2;\r | |
1210 | \r | |
1211 | if (Value1->Type >= EFI_IFR_TYPE_OTHER || Value2->Type >= EFI_IFR_TYPE_OTHER ) {\r | |
1212 | return EFI_INVALID_PARAMETER;\r | |
1213 | }\r | |
1214 | \r | |
1215 | if (Value1->Type == EFI_IFR_TYPE_STRING || Value2->Type == EFI_IFR_TYPE_STRING ) {\r | |
1216 | if (Value1->Type != Value2->Type) {\r | |
1217 | //\r | |
1218 | // Both Operator should be type of String\r | |
1219 | //\r | |
1220 | return EFI_INVALID_PARAMETER;\r | |
1221 | }\r | |
1222 | \r | |
1223 | if (Value1->Value.string == 0 || Value2->Value.string == 0) {\r | |
1224 | //\r | |
1225 | // StringId 0 is reserved\r | |
1226 | //\r | |
1227 | return EFI_INVALID_PARAMETER;\r | |
1228 | }\r | |
1229 | \r | |
1230 | if (Value1->Value.string == Value2->Value.string) {\r | |
1231 | return 0;\r | |
1232 | }\r | |
1233 | \r | |
1234 | Str1 = GetToken (Value1->Value.string, HiiHandle);\r | |
1235 | if (Str1 == NULL) {\r | |
1236 | //\r | |
1237 | // String not found\r | |
1238 | //\r | |
1239 | return EFI_INVALID_PARAMETER;\r | |
1240 | }\r | |
1241 | \r | |
1242 | Str2 = GetToken (Value2->Value.string, HiiHandle);\r | |
1243 | if (Str2 == NULL) {\r | |
1244 | gBS->FreePool (Str1);\r | |
1245 | return EFI_INVALID_PARAMETER;\r | |
1246 | }\r | |
1247 | \r | |
1248 | Result = StrCmp (Str1, Str2);\r | |
1249 | \r | |
1250 | gBS->FreePool (Str1);\r | |
1251 | gBS->FreePool (Str2);\r | |
1252 | \r | |
1253 | return Result;\r | |
1254 | }\r | |
1255 | \r | |
1256 | //\r | |
1257 | // Take remain types(integer, boolean, date/time) as integer\r | |
1258 | //\r | |
1259 | Temp64 = (INT64) (Value1->Value.u64 - Value2->Value.u64);\r | |
1260 | if (Temp64 > 0) {\r | |
1261 | Result = 1;\r | |
1262 | } else if (Temp64 < 0) {\r | |
1263 | Result = -1;\r | |
1264 | } else {\r | |
1265 | Result = 0;\r | |
1266 | }\r | |
1267 | \r | |
1268 | return Result;\r | |
1269 | }\r | |
1270 | \r | |
1271 | \r | |
1272 | /**\r | |
1273 | Evaluate the result of a HII expression\r | |
1274 | \r | |
1275 | @param FormSet FormSet associated with this expression.\r | |
1276 | @param Form Form associated with this expression.\r | |
1277 | @param Expression Expression to be evaluated.\r | |
1278 | \r | |
1279 | @retval EFI_SUCCESS The expression evaluated successfuly\r | |
1280 | @retval EFI_NOT_FOUND The Question which referenced by a QuestionId\r | |
1281 | could not be found.\r | |
1282 | @retval EFI_OUT_OF_RESOURCES There is not enough system memory to grow the\r | |
1283 | stack.\r | |
1284 | @retval EFI_ACCESS_DENIED The pop operation underflowed the stack\r | |
1285 | @retval EFI_INVALID_PARAMETER Syntax error with the Expression\r | |
1286 | \r | |
1287 | **/\r | |
1288 | EFI_STATUS\r | |
1289 | EvaluateExpression (\r | |
1290 | IN FORM_BROWSER_FORMSET *FormSet,\r | |
1291 | IN FORM_BROWSER_FORM *Form,\r | |
1292 | IN OUT FORM_EXPRESSION *Expression\r | |
1293 | )\r | |
1294 | {\r | |
1295 | EFI_STATUS Status;\r | |
1296 | LIST_ENTRY *Link;\r | |
1297 | EXPRESSION_OPCODE *OpCode;\r | |
1298 | FORM_BROWSER_STATEMENT *Question;\r | |
1299 | FORM_BROWSER_STATEMENT *Question2;\r | |
1300 | UINT16 Index;\r | |
1301 | EFI_HII_VALUE Data1;\r | |
1302 | EFI_HII_VALUE Data2;\r | |
1303 | EFI_HII_VALUE Data3;\r | |
1304 | FORM_EXPRESSION *RuleExpression;\r | |
1305 | EFI_HII_VALUE *Value;\r | |
1306 | INTN Result;\r | |
1307 | CHAR16 *StrPtr;\r | |
1308 | UINT32 TempValue;\r | |
1309 | \r | |
1310 | //\r | |
1311 | // Always reset the stack before evaluating an Expression\r | |
1312 | //\r | |
1313 | ResetExpressionStack ();\r | |
1314 | \r | |
1315 | Expression->Result.Type = EFI_IFR_TYPE_OTHER;\r | |
1316 | \r | |
1317 | Link = GetFirstNode (&Expression->OpCodeListHead);\r | |
1318 | while (!IsNull (&Expression->OpCodeListHead, Link)) {\r | |
1319 | OpCode = EXPRESSION_OPCODE_FROM_LINK (Link);\r | |
1320 | \r | |
1321 | Link = GetNextNode (&Expression->OpCodeListHead, Link);\r | |
1322 | \r | |
1323 | ZeroMem (&Data1, sizeof (EFI_HII_VALUE));\r | |
1324 | ZeroMem (&Data2, sizeof (EFI_HII_VALUE));\r | |
1325 | ZeroMem (&Data3, sizeof (EFI_HII_VALUE));\r | |
1326 | \r | |
1327 | Value = &Data3;\r | |
1328 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
1329 | Status = EFI_SUCCESS;\r | |
1330 | \r | |
1331 | switch (OpCode->Operand) {\r | |
1332 | //\r | |
1333 | // Built-in functions\r | |
1334 | //\r | |
1335 | case EFI_IFR_EQ_ID_VAL_OP:\r | |
1336 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1337 | if (Question == NULL) {\r | |
1338 | return EFI_NOT_FOUND;\r | |
1339 | }\r | |
1340 | \r | |
1341 | Result = CompareHiiValue (&Question->HiiValue, &OpCode->Value, NULL);\r | |
1342 | if (Result == EFI_INVALID_PARAMETER) {\r | |
1343 | return EFI_INVALID_PARAMETER;\r | |
1344 | }\r | |
1345 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1346 | break;\r | |
1347 | \r | |
1348 | case EFI_IFR_EQ_ID_ID_OP:\r | |
1349 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1350 | if (Question == NULL) {\r | |
1351 | return EFI_NOT_FOUND;\r | |
1352 | }\r | |
1353 | \r | |
1354 | Question2 = IdToQuestion (FormSet, Form, OpCode->QuestionId2);\r | |
1355 | if (Question2 == NULL) {\r | |
1356 | return EFI_NOT_FOUND;\r | |
1357 | }\r | |
1358 | \r | |
1359 | Result = CompareHiiValue (&Question->HiiValue, &Question2->HiiValue, FormSet->HiiHandle);\r | |
1360 | if (Result == EFI_INVALID_PARAMETER) {\r | |
1361 | return EFI_INVALID_PARAMETER;\r | |
1362 | }\r | |
1363 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1364 | break;\r | |
1365 | \r | |
1366 | case EFI_IFR_EQ_ID_LIST_OP:\r | |
1367 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1368 | if (Question == NULL) {\r | |
1369 | return EFI_NOT_FOUND;\r | |
1370 | }\r | |
1371 | \r | |
1372 | Value->Value.b = FALSE;\r | |
1373 | for (Index =0; Index < OpCode->ListLength; Index++) {\r | |
1374 | if (Question->HiiValue.Value.u16 == OpCode->ValueList[Index]) {\r | |
1375 | Value->Value.b = TRUE;\r | |
1376 | break;\r | |
1377 | }\r | |
1378 | }\r | |
1379 | break;\r | |
1380 | \r | |
1381 | case EFI_IFR_DUP_OP:\r | |
1382 | Status = PopExpression (Value);\r | |
1383 | if (EFI_ERROR (Status)) {\r | |
1384 | return Status;\r | |
1385 | }\r | |
1386 | \r | |
1387 | Status = PushExpression (Value);\r | |
1388 | break;\r | |
1389 | \r | |
1390 | case EFI_IFR_QUESTION_REF1_OP:\r | |
1391 | case EFI_IFR_THIS_OP:\r | |
1392 | Question = IdToQuestion (FormSet, Form, OpCode->QuestionId);\r | |
1393 | if (Question == NULL) {\r | |
1394 | return EFI_NOT_FOUND;\r | |
1395 | }\r | |
1396 | \r | |
1397 | Value = &Question->HiiValue;\r | |
1398 | break;\r | |
1399 | \r | |
1400 | case EFI_IFR_QUESTION_REF3_OP:\r | |
1401 | if (OpCode->DevicePath == 0) {\r | |
1402 | //\r | |
1403 | // EFI_IFR_QUESTION_REF3\r | |
1404 | // Pop an expression from the expression stack\r | |
1405 | //\r | |
1406 | Status = PopExpression (Value);\r | |
1407 | if (EFI_ERROR (Status)) {\r | |
1408 | return Status;\r | |
1409 | }\r | |
1410 | \r | |
1411 | //\r | |
1412 | // Validate the expression value\r | |
1413 | //\r | |
1414 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
1415 | return EFI_NOT_FOUND;\r | |
1416 | }\r | |
1417 | \r | |
1418 | Question = IdToQuestion (FormSet, Form, Value->Value.u16);\r | |
1419 | if (Question == NULL) {\r | |
1420 | return EFI_NOT_FOUND;\r | |
1421 | }\r | |
1422 | \r | |
1423 | //\r | |
1424 | // push the questions' value on to the expression stack\r | |
1425 | //\r | |
1426 | Value = &Question->HiiValue;\r | |
1427 | } else {\r | |
1428 | //\r | |
1429 | // BUGBUG: push 0 for EFI_IFR_QUESTION_REF3_2 and EFI_IFR_QUESTION_REF3_3,\r | |
1430 | // since it is impractical to evaluate the value of a Question in another\r | |
1431 | // Hii Package list.\r | |
1432 | //\r | |
1433 | ZeroMem (Value, sizeof (EFI_HII_VALUE));\r | |
1434 | }\r | |
1435 | break;\r | |
1436 | \r | |
1437 | case EFI_IFR_RULE_REF_OP:\r | |
1438 | //\r | |
1439 | // Find expression for this rule\r | |
1440 | //\r | |
1441 | RuleExpression = RuleIdToExpression (Form, OpCode->RuleId);\r | |
1442 | if (RuleExpression == NULL) {\r | |
1443 | return EFI_NOT_FOUND;\r | |
1444 | }\r | |
1445 | \r | |
1446 | //\r | |
1447 | // Evaluate this rule expression\r | |
1448 | //\r | |
1449 | Status = EvaluateExpression (FormSet, Form, RuleExpression);\r | |
1450 | if (EFI_ERROR (Status)) {\r | |
1451 | return Status;\r | |
1452 | }\r | |
1453 | \r | |
1454 | Value = &RuleExpression->Result;\r | |
1455 | break;\r | |
1456 | \r | |
1457 | case EFI_IFR_STRING_REF1_OP:\r | |
1458 | Value->Type = EFI_IFR_TYPE_STRING;\r | |
1459 | Value->Value.string = OpCode->Value.Value.string;\r | |
1460 | break;\r | |
1461 | \r | |
1462 | //\r | |
1463 | // Constant\r | |
1464 | //\r | |
1465 | case EFI_IFR_TRUE_OP:\r | |
1466 | case EFI_IFR_FALSE_OP:\r | |
1467 | case EFI_IFR_ONE_OP:\r | |
1468 | case EFI_IFR_ONES_OP:\r | |
1469 | case EFI_IFR_UINT8_OP:\r | |
1470 | case EFI_IFR_UINT16_OP:\r | |
1471 | case EFI_IFR_UINT32_OP:\r | |
1472 | case EFI_IFR_UINT64_OP:\r | |
1473 | case EFI_IFR_UNDEFINED_OP:\r | |
1474 | case EFI_IFR_VERSION_OP:\r | |
1475 | case EFI_IFR_ZERO_OP:\r | |
1476 | Value = &OpCode->Value;\r | |
1477 | break;\r | |
1478 | \r | |
1479 | //\r | |
1480 | // unary-op\r | |
1481 | //\r | |
1482 | case EFI_IFR_LENGTH_OP:\r | |
1483 | Status = PopExpression (Value);\r | |
1484 | if (EFI_ERROR (Status)) {\r | |
1485 | return Status;\r | |
1486 | }\r | |
1487 | if (Value->Type != EFI_IFR_TYPE_STRING) {\r | |
1488 | return EFI_INVALID_PARAMETER;\r | |
1489 | }\r | |
1490 | \r | |
1491 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
1492 | if (StrPtr == NULL) {\r | |
1493 | return EFI_INVALID_PARAMETER;\r | |
1494 | }\r | |
1495 | \r | |
1496 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1497 | Value->Value.u64 = StrLen (StrPtr);\r | |
1498 | gBS->FreePool (StrPtr);\r | |
1499 | break;\r | |
1500 | \r | |
1501 | case EFI_IFR_NOT_OP:\r | |
1502 | Status = PopExpression (Value);\r | |
1503 | if (EFI_ERROR (Status)) {\r | |
1504 | return Status;\r | |
1505 | }\r | |
1506 | if (Value->Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
1507 | return EFI_INVALID_PARAMETER;\r | |
1508 | }\r | |
1509 | Value->Value.b = (BOOLEAN) (!Value->Value.b);\r | |
1510 | break;\r | |
1511 | \r | |
1512 | case EFI_IFR_QUESTION_REF2_OP:\r | |
1513 | //\r | |
1514 | // Pop an expression from the expression stack\r | |
1515 | //\r | |
1516 | Status = PopExpression (Value);\r | |
1517 | if (EFI_ERROR (Status)) {\r | |
1518 | return Status;\r | |
1519 | }\r | |
1520 | \r | |
1521 | //\r | |
1522 | // Validate the expression value\r | |
1523 | //\r | |
1524 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
1525 | return EFI_NOT_FOUND;\r | |
1526 | }\r | |
1527 | \r | |
1528 | Question = IdToQuestion (FormSet, Form, Value->Value.u16);\r | |
1529 | if (Question == NULL) {\r | |
1530 | return EFI_NOT_FOUND;\r | |
1531 | }\r | |
1532 | \r | |
1533 | Value = &Question->HiiValue;\r | |
1534 | break;\r | |
1535 | \r | |
1536 | case EFI_IFR_STRING_REF2_OP:\r | |
1537 | //\r | |
1538 | // Pop an expression from the expression stack\r | |
1539 | //\r | |
1540 | Status = PopExpression (Value);\r | |
1541 | if (EFI_ERROR (Status)) {\r | |
1542 | return Status;\r | |
1543 | }\r | |
1544 | \r | |
1545 | //\r | |
1546 | // Validate the expression value\r | |
1547 | //\r | |
1548 | if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {\r | |
1549 | return EFI_NOT_FOUND;\r | |
1550 | }\r | |
1551 | \r | |
1552 | Value->Type = EFI_IFR_TYPE_STRING;\r | |
1553 | StrPtr = GetToken (Value->Value.u16, FormSet->HiiHandle);\r | |
1554 | if (StrPtr == NULL) {\r | |
1555 | //\r | |
1556 | // If String not exit, push an empty string\r | |
1557 | //\r | |
1558 | Value->Value.string = NewString (gEmptyString, FormSet->HiiHandle);\r | |
1559 | } else {\r | |
1560 | Index = (UINT16) Value->Value.u64;\r | |
1561 | Value->Value.string = Index;\r | |
1562 | gBS->FreePool (StrPtr);\r | |
1563 | }\r | |
1564 | break;\r | |
1565 | \r | |
1566 | case EFI_IFR_TO_BOOLEAN_OP:\r | |
1567 | //\r | |
1568 | // Pop an expression from the expression stack\r | |
1569 | //\r | |
1570 | Status = PopExpression (Value);\r | |
1571 | if (EFI_ERROR (Status)) {\r | |
1572 | return Status;\r | |
1573 | }\r | |
1574 | \r | |
1575 | //\r | |
1576 | // Convert an expression to a Boolean\r | |
1577 | //\r | |
1578 | if (Value->Type <= EFI_IFR_TYPE_DATE) {\r | |
1579 | //\r | |
1580 | // When converting from an unsigned integer, zero will be converted to\r | |
1581 | // FALSE and any other value will be converted to TRUE.\r | |
1582 | //\r | |
1583 | Value->Value.b = (BOOLEAN) ((Value->Value.u64) ? TRUE : FALSE);\r | |
1584 | \r | |
1585 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
1586 | } else if (Value->Type == EFI_IFR_TYPE_STRING) {\r | |
1587 | //\r | |
1588 | // When converting from a string, if case-insensitive compare\r | |
1589 | // with "true" is True, then push True. If a case-insensitive compare\r | |
1590 | // with "false" is True, then push False.\r | |
1591 | //\r | |
1592 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
1593 | if (StrPtr == NULL) {\r | |
1594 | return EFI_INVALID_PARAMETER;\r | |
1595 | }\r | |
1596 | \r | |
1597 | if ((StrCmp (StrPtr, L"true") == 0) || (StrCmp (StrPtr, L"false") == 0)){\r | |
1598 | Value->Value.b = TRUE;\r | |
1599 | } else {\r | |
1600 | Value->Value.b = FALSE;\r | |
1601 | }\r | |
1602 | gBS->FreePool (StrPtr);\r | |
1603 | Value->Type = EFI_IFR_TYPE_BOOLEAN;\r | |
1604 | }\r | |
1605 | break;\r | |
1606 | \r | |
1607 | case EFI_IFR_TO_STRING_OP:\r | |
1608 | Status = IfrToString (FormSet, OpCode->Format, Value);\r | |
1609 | break;\r | |
1610 | \r | |
1611 | case EFI_IFR_TO_UINT_OP:\r | |
1612 | Status = IfrToUint (FormSet, Value);\r | |
1613 | break;\r | |
1614 | \r | |
1615 | case EFI_IFR_TO_LOWER_OP:\r | |
1616 | case EFI_IFR_TO_UPPER_OP:\r | |
1617 | Status = InitializeUnicodeCollationProtocol ();\r | |
1618 | if (EFI_ERROR (Status)) {\r | |
1619 | return Status;\r | |
1620 | }\r | |
1621 | \r | |
1622 | Status = PopExpression (Value);\r | |
1623 | if (EFI_ERROR (Status)) {\r | |
1624 | return Status;\r | |
1625 | }\r | |
1626 | \r | |
1627 | if (Value->Type != EFI_IFR_TYPE_STRING) {\r | |
1628 | return EFI_UNSUPPORTED;\r | |
1629 | }\r | |
1630 | \r | |
1631 | StrPtr = GetToken (Value->Value.string, FormSet->HiiHandle);\r | |
1632 | if (StrPtr == NULL) {\r | |
1633 | return EFI_NOT_FOUND;\r | |
1634 | }\r | |
1635 | \r | |
1636 | if (OpCode->Operand == EFI_IFR_TO_LOWER_OP) {\r | |
1637 | mUnicodeCollation->StrLwr (mUnicodeCollation, StrPtr);\r | |
1638 | } else {\r | |
1639 | mUnicodeCollation->StrUpr (mUnicodeCollation, StrPtr);\r | |
1640 | }\r | |
1641 | Value->Value.string = NewString (StrPtr, FormSet->HiiHandle);\r | |
1642 | gBS->FreePool (StrPtr);\r | |
1643 | break;\r | |
1644 | \r | |
1645 | case EFI_IFR_BITWISE_NOT_OP:\r | |
1646 | //\r | |
1647 | // Pop an expression from the expression stack\r | |
1648 | //\r | |
1649 | Status = PopExpression (Value);\r | |
1650 | if (EFI_ERROR (Status)) {\r | |
1651 | return Status;\r | |
1652 | }\r | |
1653 | if (Value->Type > EFI_IFR_TYPE_DATE) {\r | |
1654 | return EFI_INVALID_PARAMETER;\r | |
1655 | }\r | |
1656 | \r | |
1657 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1658 | Value->Value.u64 = ~Value->Value.u64;\r | |
1659 | break;\r | |
1660 | \r | |
1661 | //\r | |
1662 | // binary-op\r | |
1663 | //\r | |
1664 | case EFI_IFR_ADD_OP:\r | |
1665 | case EFI_IFR_SUBTRACT_OP:\r | |
1666 | case EFI_IFR_MULTIPLY_OP:\r | |
1667 | case EFI_IFR_DIVIDE_OP:\r | |
1668 | case EFI_IFR_MODULO_OP:\r | |
1669 | case EFI_IFR_BITWISE_AND_OP:\r | |
1670 | case EFI_IFR_BITWISE_OR_OP:\r | |
1671 | case EFI_IFR_SHIFT_LEFT_OP:\r | |
1672 | case EFI_IFR_SHIFT_RIGHT_OP:\r | |
1673 | //\r | |
1674 | // Pop an expression from the expression stack\r | |
1675 | //\r | |
1676 | Status = PopExpression (&Data2);\r | |
1677 | if (EFI_ERROR (Status)) {\r | |
1678 | return Status;\r | |
1679 | }\r | |
1680 | if (Data2.Type > EFI_IFR_TYPE_DATE) {\r | |
1681 | return EFI_INVALID_PARAMETER;\r | |
1682 | }\r | |
1683 | \r | |
1684 | //\r | |
1685 | // Pop another expression from the expression stack\r | |
1686 | //\r | |
1687 | Status = PopExpression (&Data1);\r | |
1688 | if (EFI_ERROR (Status)) {\r | |
1689 | return Status;\r | |
1690 | }\r | |
1691 | if (Data1.Type > EFI_IFR_TYPE_DATE) {\r | |
1692 | return EFI_INVALID_PARAMETER;\r | |
1693 | }\r | |
1694 | \r | |
1695 | Value->Type = EFI_IFR_TYPE_NUM_SIZE_64;\r | |
1696 | \r | |
1697 | switch (OpCode->Operand) {\r | |
1698 | case EFI_IFR_ADD_OP:\r | |
1699 | Value->Value.u64 = Data1.Value.u64 + Data2.Value.u64;\r | |
1700 | break;\r | |
1701 | \r | |
1702 | case EFI_IFR_SUBTRACT_OP:\r | |
1703 | Value->Value.u64 = Data1.Value.u64 - Data2.Value.u64;\r | |
1704 | break;\r | |
1705 | \r | |
1706 | case EFI_IFR_MULTIPLY_OP:\r | |
1707 | Value->Value.u64 = MultU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);\r | |
1708 | break;\r | |
1709 | \r | |
1710 | case EFI_IFR_DIVIDE_OP:\r | |
1711 | Value->Value.u64 = DivU64x32 (Data1.Value.u64, (UINT32) Data2.Value.u64);\r | |
1712 | break;\r | |
1713 | \r | |
1714 | case EFI_IFR_MODULO_OP:\r | |
1715 | DivU64x32Remainder (Data1.Value.u64, (UINT32) Data2.Value.u64, &TempValue);\r | |
1716 | Value->Value.u64 = TempValue;\r | |
1717 | break;\r | |
1718 | \r | |
1719 | case EFI_IFR_BITWISE_AND_OP:\r | |
1720 | Value->Value.u64 = Data1.Value.u64 & Data2.Value.u64;\r | |
1721 | break;\r | |
1722 | \r | |
1723 | case EFI_IFR_BITWISE_OR_OP:\r | |
1724 | Value->Value.u64 = Data1.Value.u64 | Data2.Value.u64;\r | |
1725 | break;\r | |
1726 | \r | |
1727 | case EFI_IFR_SHIFT_LEFT_OP:\r | |
1728 | Value->Value.u64 = LShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);\r | |
1729 | break;\r | |
1730 | \r | |
1731 | case EFI_IFR_SHIFT_RIGHT_OP:\r | |
1732 | Value->Value.u64 = RShiftU64 (Data1.Value.u64, (UINTN) Data2.Value.u64);\r | |
1733 | break;\r | |
1734 | \r | |
1735 | default:\r | |
1736 | break;\r | |
1737 | }\r | |
1738 | break;\r | |
1739 | \r | |
1740 | case EFI_IFR_AND_OP:\r | |
1741 | case EFI_IFR_OR_OP:\r | |
1742 | //\r | |
1743 | // Two Boolean operator\r | |
1744 | //\r | |
1745 | Status = PopExpression (&Data2);\r | |
1746 | if (EFI_ERROR (Status)) {\r | |
1747 | return Status;\r | |
1748 | }\r | |
1749 | if (Data2.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
1750 | return EFI_INVALID_PARAMETER;\r | |
1751 | }\r | |
1752 | \r | |
1753 | //\r | |
1754 | // Pop another expression from the expression stack\r | |
1755 | //\r | |
1756 | Status = PopExpression (&Data1);\r | |
1757 | if (EFI_ERROR (Status)) {\r | |
1758 | return Status;\r | |
1759 | }\r | |
1760 | if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
1761 | return EFI_INVALID_PARAMETER;\r | |
1762 | }\r | |
1763 | \r | |
1764 | if (OpCode->Operand == EFI_IFR_AND_OP) {\r | |
1765 | Value->Value.b = (BOOLEAN) (Data1.Value.b && Data2.Value.b);\r | |
1766 | } else {\r | |
1767 | Value->Value.b = (BOOLEAN) (Data1.Value.b || Data2.Value.b);\r | |
1768 | }\r | |
1769 | break;\r | |
1770 | \r | |
1771 | case EFI_IFR_EQUAL_OP:\r | |
1772 | case EFI_IFR_NOT_EQUAL_OP:\r | |
1773 | case EFI_IFR_GREATER_EQUAL_OP:\r | |
1774 | case EFI_IFR_GREATER_THAN_OP:\r | |
1775 | case EFI_IFR_LESS_EQUAL_OP:\r | |
1776 | case EFI_IFR_LESS_THAN_OP:\r | |
1777 | //\r | |
1778 | // Compare two integer, string, boolean or date/time\r | |
1779 | //\r | |
1780 | Status = PopExpression (&Data2);\r | |
1781 | if (EFI_ERROR (Status)) {\r | |
1782 | return Status;\r | |
1783 | }\r | |
1784 | if (Data2.Type > EFI_IFR_TYPE_BOOLEAN && Data2.Type != EFI_IFR_TYPE_STRING) {\r | |
1785 | return EFI_INVALID_PARAMETER;\r | |
1786 | }\r | |
1787 | \r | |
1788 | //\r | |
1789 | // Pop another expression from the expression stack\r | |
1790 | //\r | |
1791 | Status = PopExpression (&Data1);\r | |
1792 | if (EFI_ERROR (Status)) {\r | |
1793 | return Status;\r | |
1794 | }\r | |
1795 | \r | |
1796 | Result = CompareHiiValue (&Data1, &Data2, FormSet->HiiHandle);\r | |
1797 | if (Result == EFI_INVALID_PARAMETER) {\r | |
1798 | return EFI_INVALID_PARAMETER;\r | |
1799 | }\r | |
1800 | \r | |
1801 | switch (OpCode->Operand) {\r | |
1802 | case EFI_IFR_EQUAL_OP:\r | |
1803 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1804 | break;\r | |
1805 | \r | |
1806 | case EFI_IFR_NOT_EQUAL_OP:\r | |
1807 | Value->Value.b = (BOOLEAN) ((Result == 0) ? TRUE : FALSE);\r | |
1808 | break;\r | |
1809 | \r | |
1810 | case EFI_IFR_GREATER_EQUAL_OP:\r | |
1811 | Value->Value.b = (BOOLEAN) ((Result >= 0) ? TRUE : FALSE);\r | |
1812 | break;\r | |
1813 | \r | |
1814 | case EFI_IFR_GREATER_THAN_OP:\r | |
1815 | Value->Value.b = (BOOLEAN) ((Result > 0) ? TRUE : FALSE);\r | |
1816 | break;\r | |
1817 | \r | |
1818 | case EFI_IFR_LESS_EQUAL_OP:\r | |
1819 | Value->Value.b = (BOOLEAN) ((Result <= 0) ? TRUE : FALSE);\r | |
1820 | break;\r | |
1821 | \r | |
1822 | case EFI_IFR_LESS_THAN_OP:\r | |
1823 | Value->Value.b = (BOOLEAN) ((Result < 0) ? TRUE : FALSE);\r | |
1824 | break;\r | |
1825 | \r | |
1826 | default:\r | |
1827 | break;\r | |
1828 | }\r | |
1829 | break;\r | |
1830 | \r | |
1831 | case EFI_IFR_MATCH_OP:\r | |
1832 | Status = IfrMatch (FormSet, Value);\r | |
1833 | break;\r | |
1834 | \r | |
1835 | case EFI_IFR_CATENATE_OP:\r | |
1836 | Status = IfrCatenate (FormSet, Value);\r | |
1837 | break;\r | |
1838 | \r | |
1839 | //\r | |
1840 | // ternary-op\r | |
1841 | //\r | |
1842 | case EFI_IFR_CONDITIONAL_OP:\r | |
1843 | //\r | |
1844 | // Pop third expression from the expression stack\r | |
1845 | //\r | |
1846 | Status = PopExpression (&Data3);\r | |
1847 | if (EFI_ERROR (Status)) {\r | |
1848 | return Status;\r | |
1849 | }\r | |
1850 | \r | |
1851 | //\r | |
1852 | // Pop second expression from the expression stack\r | |
1853 | //\r | |
1854 | Status = PopExpression (&Data2);\r | |
1855 | if (EFI_ERROR (Status)) {\r | |
1856 | return Status;\r | |
1857 | }\r | |
1858 | \r | |
1859 | //\r | |
1860 | // Pop first expression from the expression stack\r | |
1861 | //\r | |
1862 | Status = PopExpression (&Data1);\r | |
1863 | if (EFI_ERROR (Status)) {\r | |
1864 | return Status;\r | |
1865 | }\r | |
1866 | if (Data1.Type != EFI_IFR_TYPE_BOOLEAN) {\r | |
1867 | return EFI_INVALID_PARAMETER;\r | |
1868 | }\r | |
1869 | \r | |
1870 | if (Data1.Value.b) {\r | |
1871 | Value = &Data3;\r | |
1872 | } else {\r | |
1873 | Value = &Data2;\r | |
1874 | }\r | |
1875 | break;\r | |
1876 | \r | |
1877 | case EFI_IFR_FIND_OP:\r | |
1878 | Status = IfrFind (FormSet, OpCode->Format, Value);\r | |
1879 | break;\r | |
1880 | \r | |
1881 | case EFI_IFR_MID_OP:\r | |
1882 | Status = IfrMid (FormSet, Value);\r | |
1883 | break;\r | |
1884 | \r | |
1885 | case EFI_IFR_TOKEN_OP:\r | |
1886 | Status = IfrToken (FormSet, Value);\r | |
1887 | break;\r | |
1888 | \r | |
1889 | case EFI_IFR_SPAN_OP:\r | |
1890 | Status = IfrSpan (FormSet, OpCode->Flags, Value);\r | |
1891 | break;\r | |
1892 | \r | |
1893 | default:\r | |
1894 | break;\r | |
1895 | }\r | |
1896 | if (EFI_ERROR (Status)) {\r | |
1897 | return Status;\r | |
1898 | }\r | |
1899 | \r | |
1900 | Status = PushExpression (Value);\r | |
1901 | if (EFI_ERROR (Status)) {\r | |
1902 | return Status;\r | |
1903 | }\r | |
1904 | }\r | |
1905 | \r | |
1906 | //\r | |
1907 | // Pop the final result from expression stack\r | |
1908 | //\r | |
1909 | Value = &Data1;\r | |
1910 | Status = PopExpression (Value);\r | |
1911 | if (EFI_ERROR (Status)) {\r | |
1912 | return Status;\r | |
1913 | }\r | |
1914 | \r | |
1915 | //\r | |
1916 | // After evaluating an expression, there should be only one value left on the expression stack\r | |
1917 | //\r | |
1918 | if (PopExpression (Value) != EFI_ACCESS_DENIED) {\r | |
1919 | return EFI_INVALID_PARAMETER;\r | |
1920 | }\r | |
1921 | \r | |
1922 | CopyMem (&Expression->Result, Value, sizeof (EFI_HII_VALUE));\r | |
1923 | \r | |
1924 | return EFI_SUCCESS;\r | |
1925 | }\r |